2874 files changed, 139481 insertions, 74447 deletions

diff --git a/Documentation/ABI/stable/sysfs-bus-xen-backend b/Documentation/ABI/stable/sysfs-bus-xen-backend
new file mode 100644
index 000000000000..3d5951c8bf5f
--- /dev/null
+++ b/Documentation/ABI/stable/sysfs-bus-xen-backend
@@ -0,0 +1,75 @@
+What:		/sys/bus/xen-backend/devices/*/devtype
+Date:		Feb 2009
+KernelVersion:	2.6.38
+Contact:	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Description:
+                The type of the device.  e.g., one of: 'vbd' (block),
+                'vif' (network), or 'vfb' (framebuffer).
+
+What:		/sys/bus/xen-backend/devices/*/nodename
+Date:		Feb 2009
+KernelVersion:	2.6.38
+Contact:	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Description:
+                XenStore node (under /local/domain/NNN/) for this
+                backend device.
+
+What:		/sys/bus/xen-backend/devices/vbd-*/physical_device
+Date:		April 2011
+KernelVersion:	3.0
+Contact:	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Description:
+                The major:minor number (in hexidecimal) of the
+                physical device providing the storage for this backend
+                block device.
+
+What:		/sys/bus/xen-backend/devices/vbd-*/mode
+Date:		April 2011
+KernelVersion:	3.0
+Contact:	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Description:
+                Whether the block device is read-only ('r') or
+                read-write ('w').
+
+What:		/sys/bus/xen-backend/devices/vbd-*/statistics/f_req
+Date:		April 2011
+KernelVersion:	3.0
+Contact:	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Description:
+                Number of flush requests from the frontend.
+
+What:		/sys/bus/xen-backend/devices/vbd-*/statistics/oo_req
+Date:		April 2011
+KernelVersion:	3.0
+Contact:	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Description:
+                Number of requests delayed because the backend was too
+                busy processing previous requests.
+
+What:		/sys/bus/xen-backend/devices/vbd-*/statistics/rd_req
+Date:		April 2011
+KernelVersion:	3.0
+Contact:	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Description:
+                Number of read requests from the frontend.
+
+What:		/sys/bus/xen-backend/devices/vbd-*/statistics/rd_sect
+Date:		April 2011
+KernelVersion:	3.0
+Contact:	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Description:
+                Number of sectors read by the frontend.
+
+What:		/sys/bus/xen-backend/devices/vbd-*/statistics/wr_req
+Date:		April 2011
+KernelVersion:	3.0
+Contact:	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Description:
+                Number of write requests from the frontend.
+
+What:		/sys/bus/xen-backend/devices/vbd-*/statistics/wr_sect
+Date:		April 2011
+KernelVersion:	3.0
+Contact:	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Description:
+                Number of sectors written by the frontend.
diff --git a/Documentation/ABI/stable/sysfs-devices-system-xen_memory b/Documentation/ABI/stable/sysfs-devices-system-xen_memory
new file mode 100644
index 000000000000..caa311d59ac1
--- /dev/null
+++ b/Documentation/ABI/stable/sysfs-devices-system-xen_memory
@@ -0,0 +1,77 @@
+What:		/sys/devices/system/xen_memory/xen_memory0/max_retry_count
+Date:		May 2011
+KernelVersion:	2.6.39
+Contact:	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Description:
+		The maximum number of times the balloon driver will
+		attempt to increase the balloon before giving up.  See
+		also 'retry_count' below.
+		A value of zero means retry forever and is the default one.
+
+What:		/sys/devices/system/xen_memory/xen_memory0/max_schedule_delay
+Date:		May 2011
+KernelVersion:	2.6.39
+Contact:	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Description:
+		The limit that 'schedule_delay' (see below) will be
+		increased to. The default value is 32 seconds.
+
+What:		/sys/devices/system/xen_memory/xen_memory0/retry_count
+Date:		May 2011
+KernelVersion:	2.6.39
+Contact:	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Description:
+		The current number of times that the balloon driver
+		has attempted to increase the size of the balloon.
+		The default value is one. With max_retry_count being
+		zero (unlimited), this means that the driver will attempt
+		to retry with a 'schedule_delay' delay.
+
+What:		/sys/devices/system/xen_memory/xen_memory0/schedule_delay
+Date:		May 2011
+KernelVersion:	2.6.39
+Contact:	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Description:
+		The time (in seconds) to wait between attempts to
+		increase the balloon.  Each time the balloon cannot be
+		increased, 'schedule_delay' is increased (until
+		'max_schedule_delay' is reached at which point it
+		will use the max value).
+
+What:		/sys/devices/system/xen_memory/xen_memory0/target
+Date:		April 2008
+KernelVersion:	2.6.26
+Contact:	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Description:
+		The target number of pages to adjust this domain's
+		memory reservation to.
+
+What:		/sys/devices/system/xen_memory/xen_memory0/target_kb
+Date:		April 2008
+KernelVersion:	2.6.26
+Contact:	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Description:
+		As target above, except the value is in KiB.
+
+What:		/sys/devices/system/xen_memory/xen_memory0/info/current_kb
+Date:		April 2008
+KernelVersion:	2.6.26
+Contact:	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Description:
+		Current size (in KiB) of this domain's memory
+		reservation.
+
+What:		/sys/devices/system/xen_memory/xen_memory0/info/high_kb
+Date:		April 2008
+KernelVersion:	2.6.26
+Contact:	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Description:
+		Amount (in KiB) of high memory in the balloon.
+
+What:		/sys/devices/system/xen_memory/xen_memory0/info/low_kb
+Date:		April 2008
+KernelVersion:	2.6.26
+Contact:	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+Description:
+		Amount (in KiB) of low (or normal) memory in the
+		balloon.
diff --git a/Documentation/ABI/testing/sysfs-bus-pci b/Documentation/ABI/testing/sysfs-bus-pci
index 349ecf26ce10..34f51100f029 100644
--- a/Documentation/ABI/testing/sysfs-bus-pci
+++ b/Documentation/ABI/testing/sysfs-bus-pci
@@ -66,6 +66,24 @@ Description:
 		re-discover previously removed devices.
 		Depends on CONFIG_HOTPLUG.
 
+What:		/sys/bus/pci/devices/.../msi_irqs/
+Date:		September, 2011
+Contact:	Neil Horman <nhorman@tuxdriver.com>
+Description:
+		The /sys/devices/.../msi_irqs directory contains a variable set
+		of sub-directories, with each sub-directory being named after a
+		corresponding msi irq vector allocated to that device.  Each
+		numbered sub-directory N contains attributes of that irq.
+		Note that this directory is not created for device drivers which
+		do not support msi irqs
+
+What:		/sys/bus/pci/devices/.../msi_irqs/<N>/mode
+Date:		September 2011
+Contact:	Neil Horman <nhorman@tuxdriver.com>
+Description:
+		This attribute indicates the mode that the irq vector named by
+		the parent directory is in (msi vs. msix)
+
 What:		/sys/bus/pci/devices/.../remove
 Date:		January 2009
 Contact:	Linux PCI developers <linux-pci@vger.kernel.org>
diff --git a/Documentation/ABI/testing/sysfs-bus-usb b/Documentation/ABI/testing/sysfs-bus-usb
index e647378e9e88..b4f548792e32 100644
--- a/Documentation/ABI/testing/sysfs-bus-usb
+++ b/Documentation/ABI/testing/sysfs-bus-usb
@@ -119,6 +119,31 @@ Description:
 		Write a 1 to force the device to disconnect
 		(equivalent to unplugging a wired USB device).
 
+What:		/sys/bus/usb/drivers/.../new_id
+Date:		October 2011
+Contact:	linux-usb@vger.kernel.org
+Description:
+		Writing a device ID to this file will attempt to
+		dynamically add a new device ID to a USB device driver.
+		This may allow the driver to support more hardware than
+		was included in the driver's static device ID support
+		table at compile time. The format for the device ID is:
+		idVendor idProduct bInterfaceClass.
+		The vendor ID and device ID fields are required, the
+		interface class is optional.
+		Upon successfully adding an ID, the driver will probe
+		for the device and attempt to bind to it.  For example:
+		# echo "8086 10f5" > /sys/bus/usb/drivers/foo/new_id
+
+What:		/sys/bus/usb-serial/drivers/.../new_id
+Date:		October 2011
+Contact:	linux-usb@vger.kernel.org
+Description:
+		For serial USB drivers, this attribute appears under the
+		extra bus folder "usb-serial" in sysfs; apart from that
+		difference, all descriptions from the entry
+		"/sys/bus/usb/drivers/.../new_id" apply.
+
 What:		/sys/bus/usb/drivers/.../remove_id
 Date:		November 2009
 Contact:	CHENG Renquan <rqcheng@smu.edu.sg>
diff --git a/Documentation/ABI/testing/sysfs-class-rtc-rtc0-device-rtc_calibration b/Documentation/ABI/testing/sysfs-class-rtc-rtc0-device-rtc_calibration
new file mode 100644
index 000000000000..4cf1e72222d9
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-rtc-rtc0-device-rtc_calibration
@@ -0,0 +1,12 @@
+What:           Attribute for calibrating ST-Ericsson AB8500 Real Time Clock
+Date:           Oct 2011
+KernelVersion:  3.0
+Contact:        Mark Godfrey <mark.godfrey@stericsson.com>
+Description:    The rtc_calibration attribute allows the userspace to
+                calibrate the AB8500.s 32KHz Real Time Clock.
+                Every 60 seconds the AB8500 will correct the RTC's value
+                by adding to it the value of this attribute.
+                The range of the attribute is -127 to +127 in units of
+                30.5 micro-seconds (half-parts-per-million of the 32KHz clock)
+Users:          The /vendor/st-ericsson/base_utilities/core/rtc_calibration
+                daemon uses this interface.
diff --git a/Documentation/ABI/testing/sysfs-devices-platform-docg3 b/Documentation/ABI/testing/sysfs-devices-platform-docg3
new file mode 100644
index 000000000000..8aa36716882f
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-devices-platform-docg3
@@ -0,0 +1,34 @@
+What:		/sys/devices/platform/docg3/f[0-3]_dps[01]_is_keylocked
+Date:		November 2011
+KernelVersion:	3.3
+Contact:	Robert Jarzmik <robert.jarzmik@free.fr>
+Description:
+		Show whether the floor (0 to 4), protection area (0 or 1) is
+		keylocked. Each docg3 chip (or floor) has 2 protection areas,
+		which can cover any part of it, block aligned, called DPS.
+		The protection has information embedded whether it blocks reads,
+		writes or both.
+		The result is:
+		0 -> the DPS is not keylocked
+		1 -> the DPS is keylocked
+Users:		None identified so far.
+
+What:		/sys/devices/platform/docg3/f[0-3]_dps[01]_protection_key
+Date:		November 2011
+KernelVersion:	3.3
+Contact:	Robert Jarzmik <robert.jarzmik@free.fr>
+Description:
+		Enter the protection key for the floor (0 to 4), protection area
+		(0 or 1). Each docg3 chip (or floor) has 2 protection areas,
+		which can cover any part of it, block aligned, called DPS.
+		The protection has information embedded whether it blocks reads,
+		writes or both.
+		The protection key is a string of 8 bytes (value 0-255).
+		Entering the correct value toggle the lock, and can be observed
+		through f[0-3]_dps[01]_is_keylocked.
+		Possible values are:
+			- 8 bytes
+		Typical values are:
+			- "00000000"
+			- "12345678"
+Users:		None identified so far.
diff --git a/Documentation/ABI/testing/sysfs-driver-hid-multitouch b/Documentation/ABI/testing/sysfs-driver-hid-multitouch
new file mode 100644
index 000000000000..f79839d1af37
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-driver-hid-multitouch
@@ -0,0 +1,9 @@
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/quirks
+Date:		November 2011
+Contact:	Benjamin Tissoires <benjamin.tissoires@gmail.com>
+Description:	The integer value of this attribute corresponds to the
+		quirks actually in place to handle the device's protocol.
+		When read, this attribute returns the current settings (see
+		MT_QUIRKS_* in hid-multitouch.c).
+		When written this attribute change on the fly the quirks, then
+		the protocol to handle the device.
diff --git a/Documentation/ABI/testing/sysfs-driver-hid-roccat-isku b/Documentation/ABI/testing/sysfs-driver-hid-roccat-isku
new file mode 100644
index 000000000000..189dc43891bf
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-driver-hid-roccat-isku
@@ -0,0 +1,135 @@
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/isku/roccatisku<minor>/actual_profile
+Date:		June 2011
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	The integer value of this attribute ranges from 0-4.
+		When read, this attribute returns the number of the actual
+		profile. This value is persistent, so its equivalent to the
+		profile that's active when the device is powered on next time.
+		When written, this file sets the number of the startup profile
+		and the device activates this profile immediately.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/isku/roccatisku<minor>/info
+Date:		June 2011
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When read, this file returns general data like firmware version.
+		The data is 6 bytes long.
+		This file is readonly.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/isku/roccatisku<minor>/key_mask
+Date:		June 2011
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When written, this file lets one deactivate certain keys like
+		windows and application keys, to prevent accidental presses.
+		Profile number for which this settings occur is included in
+		written data. The data has to be 6 bytes long.
+		Before reading this file, control has to be written to select
+		which profile to read.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/isku/roccatisku<minor>/keys_capslock
+Date:		June 2011
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When written, this file lets one set the function of the
+		capslock key for a specific profile. Profile number is included
+		in written data. The data has to be 6 bytes long.
+		Before reading this file, control has to be written to select
+		which profile to read.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/isku/roccatisku<minor>/keys_easyzone
+Date:		June 2011
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When written, this file lets one set the function of the
+		easyzone keys for a specific profile. Profile number is included
+		in written data. The data has to be 65 bytes long.
+		Before reading this file, control has to be written to select
+		which profile to read.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/isku/roccatisku<minor>/keys_function
+Date:		June 2011
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When written, this file lets one set the function of the
+		function keys for a specific profile. Profile number is included
+		in written data. The data has to be 41 bytes long.
+		Before reading this file, control has to be written to select
+		which profile to read.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/isku/roccatisku<minor>/keys_macro
+Date:		June 2011
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When written, this file lets one set the function of the macro
+		keys for a specific profile. Profile number is included in
+		written data. The data has to be 35 bytes long.
+		Before reading this file, control has to be written to select
+		which profile to read.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/isku/roccatisku<minor>/keys_media
+Date:		June 2011
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When written, this file lets one set the function of the media
+		keys for a specific profile. Profile number is included in
+		written data. The data has to be 29 bytes long.
+		Before reading this file, control has to be written to select
+		which profile to read.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/isku/roccatisku<minor>/keys_thumbster
+Date:		June 2011
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When written, this file lets one set the function of the
+		thumbster keys for a specific profile. Profile number is included
+		in written data. The data has to be 23 bytes long.
+		Before reading this file, control has to be written to select
+		which profile to read.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/isku/roccatisku<minor>/last_set
+Date:		June 2011
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When written, this file lets one set the time in secs since
+		epoch in which the last configuration took place.
+		The data has to be 20 bytes long.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/isku/roccatisku<minor>/light
+Date:		June 2011
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When written, this file lets one set the backlight intensity for
+		a specific profile. Profile number is included in written data.
+		The data has to be 10 bytes long.
+		Before reading this file, control has to be written to select
+		which profile to read.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/isku/roccatisku<minor>/macro
+Date:		June 2011
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When written, this file lets one store macros with max 500
+		keystrokes for a specific button for a specific profile.
+		Button and profile numbers are included in written data.
+		The data has to be 2083 bytes long.
+		Before reading this file, control has to be written to select
+		which profile and key to read.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/isku/roccatisku<minor>/control
+Date:		June 2011
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When written, this file lets one select which data from which
+		profile will be	read next. The data has to be 3 bytes long.
+		This file is writeonly.
+Users:		http://roccat.sourceforge.net
+
+What:		/sys/bus/usb/devices/<busnum>-<devnum>:<config num>.<interface num>/<hid-bus>:<vendor-id>:<product-id>.<num>/isku/roccatisku<minor>/talk
+Date:		June 2011
+Contact:	Stefan Achatz <erazor_de@users.sourceforge.net>
+Description:	When written, this file lets one trigger easyshift functionality
+		from the host.
+		The data has to be 16 bytes long.
+		This file is writeonly.
+Users:		http://roccat.sourceforge.net
diff --git a/Documentation/ABI/testing/sysfs-driver-hid-wiimote b/Documentation/ABI/testing/sysfs-driver-hid-wiimote
index 5d5a16ea57c6..3d98009f447a 100644
--- a/Documentation/ABI/testing/sysfs-driver-hid-wiimote
+++ b/Documentation/ABI/testing/sysfs-driver-hid-wiimote
@@ -8,3 +8,15 @@ Contact:	David Herrmann <dh.herrmann@googlemail.com>
 Description:	Make it possible to set/get current led state. Reading from it
 		returns 0 if led is off and 1 if it is on. Writing 0 to it
 		disables the led, writing 1 enables it.
+
+What:		/sys/bus/hid/drivers/wiimote/<dev>/extension
+Date:		August 2011
+KernelVersion:	3.2
+Contact:	David Herrmann <dh.herrmann@googlemail.com>
+Description:	This file contains the currently connected and initialized
+		extensions. It can be one of: none, motionp, nunchuck, classic,
+		motionp+nunchuck, motionp+classic
+		motionp is the official Nintendo Motion+ extension, nunchuck is
+		the official Nintendo Nunchuck extension and classic is the
+		Nintendo Classic Controller extension. The motionp extension can
+		be combined with the other two.
diff --git a/Documentation/ABI/testing/sysfs-driver-wacom b/Documentation/ABI/testing/sysfs-driver-wacom
index 82d4df136444..0130d6683c14 100644
--- a/Documentation/ABI/testing/sysfs-driver-wacom
+++ b/Documentation/ABI/testing/sysfs-driver-wacom
@@ -15,9 +15,9 @@ Contact:	linux-input@vger.kernel.org
 Description:
 		Attribute group for control of the status LEDs and the OLEDs.
 		This attribute group is only available for Intuos 4 M, L,
-		and XL (with LEDs and OLEDs) and Cintiq 21UX2 (LEDs only).
-		Therefore its presence implicitly signifies the presence of
-		said LEDs and OLEDs on the tablet device.
+		and XL (with LEDs and OLEDs) and Cintiq 21UX2 and Cintiq 24HD
+		(LEDs only). Therefore its presence implicitly signifies the
+		presence of said LEDs and OLEDs on the tablet device.
 
 What:		/sys/bus/usb/devices/<busnum>-<devnum>:<cfg>.<intf>/wacom_led/status0_luminance
 Date:		August 2011
@@ -41,16 +41,17 @@ Date:		August 2011
 Contact:	linux-input@vger.kernel.org
 Description:
 		Writing to this file sets which one of the four (for Intuos 4)
-		or of the right four (for Cintiq 21UX2) status LEDs is active (0..3).
-		The other three LEDs on the same side are always inactive.
+		or of the right four (for Cintiq 21UX2 and Cintiq 24HD) status
+		LEDs is active (0..3). The other three LEDs on the same side are
+		always inactive.
 
 What:		/sys/bus/usb/devices/<busnum>-<devnum>:<cfg>.<intf>/wacom_led/status_led1_select
 Date:		September 2011
 Contact:	linux-input@vger.kernel.org
 Description:
-		Writing to this file sets which one of the left four (for Cintiq 21UX2)
-		status LEDs is active (0..3). The other three LEDs on the left are always
-		inactive.
+		Writing to this file sets which one of the left four (for Cintiq 21UX2
+		and Cintiq 24HD) status LEDs is active (0..3). The other three LEDs on
+		the left are always inactive.
 
 What:		/sys/bus/usb/devices/<busnum>-<devnum>:<cfg>.<intf>/wacom_led/buttons_luminance
 Date:		August 2011
diff --git a/Documentation/cgroups/cgroups.txt b/Documentation/cgroups/cgroups.txt
index 9c452ef2328c..a7c96ae5557c 100644
--- a/Documentation/cgroups/cgroups.txt
+++ b/Documentation/cgroups/cgroups.txt
@@ -594,53 +594,44 @@ rmdir() will fail with it. From this behavior, pre_destroy() can be
 called multiple times against a cgroup.
 
 int can_attach(struct cgroup_subsys *ss, struct cgroup *cgrp,
-	       struct task_struct *task)
+	       struct cgroup_taskset *tset)
 (cgroup_mutex held by caller)
 
-Called prior to moving a task into a cgroup; if the subsystem
-returns an error, this will abort the attach operation.  If a NULL
-task is passed, then a successful result indicates that *any*
-unspecified task can be moved into the cgroup. Note that this isn't
-called on a fork. If this method returns 0 (success) then this should
-remain valid while the caller holds cgroup_mutex and it is ensured that either
+Called prior to moving one or more tasks into a cgroup; if the
+subsystem returns an error, this will abort the attach operation.
+@tset contains the tasks to be attached and is guaranteed to have at
+least one task in it.
+
+If there are multiple tasks in the taskset, then:
+  - it's guaranteed that all are from the same thread group
+  - @tset contains all tasks from the thread group whether or not
+    they're switching cgroups
+  - the first task is the leader
+
+Each @tset entry also contains the task's old cgroup and tasks which
+aren't switching cgroup can be skipped easily using the
+cgroup_taskset_for_each() iterator. Note that this isn't called on a
+fork. If this method returns 0 (success) then this should remain valid
+while the caller holds cgroup_mutex and it is ensured that either
 attach() or cancel_attach() will be called in future.
 
-int can_attach_task(struct cgroup *cgrp, struct task_struct *tsk);
-(cgroup_mutex held by caller)
-
-As can_attach, but for operations that must be run once per task to be
-attached (possibly many when using cgroup_attach_proc). Called after
-can_attach.
-
 void cancel_attach(struct cgroup_subsys *ss, struct cgroup *cgrp,
-	       struct task_struct *task, bool threadgroup)
+		   struct cgroup_taskset *tset)
 (cgroup_mutex held by caller)
 
 Called when a task attach operation has failed after can_attach() has succeeded.
 A subsystem whose can_attach() has some side-effects should provide this
 function, so that the subsystem can implement a rollback. If not, not necessary.
 This will be called only about subsystems whose can_attach() operation have
-succeeded.
-
-void pre_attach(struct cgroup *cgrp);
-(cgroup_mutex held by caller)
-
-For any non-per-thread attachment work that needs to happen before
-attach_task. Needed by cpuset.
+succeeded. The parameters are identical to can_attach().
 
 void attach(struct cgroup_subsys *ss, struct cgroup *cgrp,
-	    struct cgroup *old_cgrp, struct task_struct *task)
+	    struct cgroup_taskset *tset)
 (cgroup_mutex held by caller)
 
 Called after the task has been attached to the cgroup, to allow any
 post-attachment activity that requires memory allocations or blocking.
-
-void attach_task(struct cgroup *cgrp, struct task_struct *tsk);
-(cgroup_mutex held by caller)
-
-As attach, but for operations that must be run once per task to be attached,
-like can_attach_task. Called before attach. Currently does not support any
-subsystem that might need the old_cgrp for every thread in the group.
+The parameters are identical to can_attach().
 
 void fork(struct cgroup_subsy *ss, struct task_struct *task)
 
diff --git a/Documentation/devicetree/bindings/arm/fsl.txt b/Documentation/devicetree/bindings/arm/fsl.txt
index c9848ad0e2e3..54bdddadf1cf 100644
--- a/Documentation/devicetree/bindings/arm/fsl.txt
+++ b/Documentation/devicetree/bindings/arm/fsl.txt
@@ -21,6 +21,10 @@ i.MX53 Smart Mobile Reference Design Board
 Required root node properties:
     - compatible = "fsl,imx53-smd", "fsl,imx53";
 
-i.MX6 Quad SABRE Automotive Board
+i.MX6 Quad Armadillo2 Board
 Required root node properties:
-    - compatible = "fsl,imx6q-sabreauto", "fsl,imx6q";
+    - compatible = "fsl,imx6q-arm2", "fsl,imx6q";
+
+i.MX6 Quad SABRE Lite Board
+Required root node properties:
+    - compatible = "fsl,imx6q-sabrelite", "fsl,imx6q";
diff --git a/Documentation/devicetree/bindings/arm/insignal-boards.txt b/Documentation/devicetree/bindings/arm/insignal-boards.txt
new file mode 100644
index 000000000000..524c3dc5d808
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/insignal-boards.txt
@@ -0,0 +1,8 @@
+* Insignal's Exynos4210 based Origen evaluation board
+
+Origen low-cost evaluation board is based on Samsung's Exynos4210 SoC.
+
+Required root node properties:
+    - compatible = should be one or more of the following.
+        (a) "samsung,smdkv310" - for Samsung's SMDKV310 eval board.
+        (b) "samsung,exynos4210"  - for boards based on Exynos4210 SoC.
diff --git a/Documentation/devicetree/bindings/arm/samsung-boards.txt b/Documentation/devicetree/bindings/arm/samsung-boards.txt
new file mode 100644
index 000000000000..0bf68be56fd1
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/samsung-boards.txt
@@ -0,0 +1,8 @@
+* Samsung's Exynos4210 based SMDKV310 evaluation board
+
+SMDKV310 evaluation board is based on Samsung's Exynos4210 SoC.
+
+Required root node properties:
+    - compatible = should be one or more of the following.
+        (a) "samsung,smdkv310" - for Samsung's SMDKV310 eval board.
+        (b) "samsung,exynos4210"  - for boards based on Exynos4210 SoC.
diff --git a/Documentation/devicetree/bindings/arm/tegra.txt b/Documentation/devicetree/bindings/arm/tegra.txt
new file mode 100644
index 000000000000..6e69d2e5e766
--- /dev/null
+++ b/Documentation/devicetree/bindings/arm/tegra.txt
@@ -0,0 +1,14 @@
+NVIDIA Tegra device tree bindings
+-------------------------------------------
+
+Boards with the tegra20 SoC shall have the following properties:
+
+Required root node property:
+
+compatible = "nvidia,tegra20";
+
+Boards with the tegra30 SoC shall have the following properties:
+
+Required root node property:
+
+compatible = "nvidia,tegra30";
diff --git a/Documentation/devicetree/bindings/c6x/clocks.txt b/Documentation/devicetree/bindings/c6x/clocks.txt
new file mode 100644
index 000000000000..a04f5fd30122
--- /dev/null
+++ b/Documentation/devicetree/bindings/c6x/clocks.txt
@@ -0,0 +1,40 @@
+C6X PLL Clock Controllers
+-------------------------
+
+This is a first-cut support for the SoC clock controllers. This is still
+under development and will probably change as the common device tree
+clock support is added to the kernel.
+
+Required properties:
+
+- compatible: "ti,c64x+pll"
+    May also have SoC-specific value to support SoC-specific initialization
+    in the driver. One of:
+        "ti,c6455-pll"
+        "ti,c6457-pll"
+        "ti,c6472-pll"
+        "ti,c6474-pll"
+
+- reg: base address and size of register area
+- clock-frequency: input clock frequency in hz
+
+
+Optional properties:
+
+- ti,c64x+pll-bypass-delay: CPU cycles to delay when entering bypass mode
+
+- ti,c64x+pll-reset-delay:  CPU cycles to delay after PLL reset
+
+- ti,c64x+pll-lock-delay:   CPU cycles to delay after PLL frequency change
+
+Example:
+
+	clock-controller@29a0000 {
+		compatible = "ti,c6472-pll", "ti,c64x+pll";
+		reg = <0x029a0000 0x200>;
+		clock-frequency = <25000000>;
+
+		ti,c64x+pll-bypass-delay = <200>;
+		ti,c64x+pll-reset-delay = <12000>;
+		ti,c64x+pll-lock-delay = <80000>;
+	};
diff --git a/Documentation/devicetree/bindings/c6x/dscr.txt b/Documentation/devicetree/bindings/c6x/dscr.txt
new file mode 100644
index 000000000000..d847758f2b20
--- /dev/null
+++ b/Documentation/devicetree/bindings/c6x/dscr.txt
@@ -0,0 +1,127 @@
+Device State Configuration Registers
+------------------------------------
+
+TI C6X SoCs contain a region of miscellaneous registers which provide various
+function for SoC control or status. Details vary considerably among from SoC
+to SoC with no two being alike.
+
+In general, the Device State Configuraion Registers (DSCR) will provide one or
+more configuration registers often protected by a lock register where one or
+more key values must be written to a lock register in order to unlock the
+configuration register for writes. These configuration register may be used to
+enable (and disable in some cases) SoC pin drivers, select peripheral clock
+sources (internal or pin), etc. In some cases, a configuration register is
+write once or the individual bits are write once. In addition to device config,
+the DSCR block may provide registers which which are used to reset peripherals,
+provide device ID information, provide ethernet MAC addresses, as well as other
+miscellaneous functions.
+
+For device state control (enable/disable), each device control is assigned an
+id which is used by individual device drivers to control the state as needed.
+
+Required properties:
+
+- compatible: must be "ti,c64x+dscr"
+- reg: register area base and size
+
+Optional properties:
+
+  NOTE: These are optional in that not all SoCs will have all properties. For
+        SoCs which do support a given property, leaving the property out of the
+        device tree will result in reduced functionality or possibly driver
+        failure.
+
+- ti,dscr-devstat
+    offset of the devstat register
+
+- ti,dscr-silicon-rev
+    offset, start bit, and bitsize of silicon revision field
+
+- ti,dscr-rmii-resets
+    offset and bitmask of RMII reset field. May have multiple tuples if more
+    than one ethernet port is available.
+
+- ti,dscr-locked-regs
+    possibly multiple tuples describing registers which are write protected by
+    a lock register. Each tuple consists of the register offset, lock register
+    offsset, and the key value used to unlock the register.
+
+- ti,dscr-kick-regs
+    offset and key values of two "kick" registers used to write protect other
+    registers in DSCR. On SoCs using kick registers, the first key must be
+    written to the first kick register and the second key must be written to
+    the second register before other registers in the area are write-enabled.
+
+- ti,dscr-mac-fuse-regs
+    MAC addresses are contained in two registers. Each element of a MAC address
+    is contained in a single byte. This property has two tuples. Each tuple has
+    a register offset and four cells representing bytes in the register from
+    most significant to least. The value of these four cells is the MAC byte
+    index (1-6) of the byte within the register. A value of 0 means the byte
+    is unused in the MAC address.
+
+- ti,dscr-devstate-ctl-regs
+    This property describes the bitfields used to control the state of devices.
+    Each tuple describes a range of identical bitfields used to control one or
+    more devices (one bitfield per device). The layout of each tuple is:
+
+        start_id num_ids reg enable disable start_bit nbits
+
+    Where:
+        start_id is device id for the first device control in the range
+        num_ids is the number of device controls in the range
+        reg is the offset of the register holding the control bits
+        enable is the value to enable a device
+        disable is the value to disable a device (0xffffffff if cannot disable)
+        start_bit is the bit number of the first bit in the range
+        nbits is the number of bits per device control
+
+- ti,dscr-devstate-stat-regs
+    This property describes the bitfields used to provide device state status
+    for device states controlled by the DSCR. Each tuple describes a range of
+    identical bitfields used to provide status for one or more devices (one
+    bitfield per device). The layout of each tuple is:
+
+        start_id num_ids reg enable disable start_bit nbits
+
+    Where:
+        start_id is device id for the first device status in the range
+        num_ids is the number of devices covered by the range
+        reg is the offset of the register holding the status bits
+        enable is the value indicating device is enabled
+        disable is the value indicating device is disabled
+        start_bit is the bit number of the first bit in the range
+        nbits is the number of bits per device status
+
+- ti,dscr-privperm
+    Offset and default value for register used to set access privilege for
+    some SoC devices.
+
+
+Example:
+
+	device-state-config-regs@2a80000 {
+		compatible = "ti,c64x+dscr";
+		reg = <0x02a80000 0x41000>;
+
+		ti,dscr-devstat = <0>;
+		ti,dscr-silicon-rev = <8 28 0xf>;
+		ti,dscr-rmii-resets = <0x40020 0x00040000>;
+
+		ti,dscr-locked-regs = <0x40008 0x40004 0x0f0a0b00>;
+		ti,dscr-devstate-ctl-regs =
+			 <0 12 0x40008 1 0  0  2
+			  12 1 0x40008 3 0 30  2
+			  13 2 0x4002c 1 0xffffffff 0 1>;
+		ti,dscr-devstate-stat-regs =
+			<0 10 0x40014 1 0  0  3
+			 10 2 0x40018 1 0  0  3>;
+
+		ti,dscr-mac-fuse-regs = <0x700 1 2 3 4
+					 0x704 5 6 0 0>;
+
+		ti,dscr-privperm = <0x41c 0xaaaaaaaa>;
+
+		ti,dscr-kick-regs = <0x38 0x83E70B13
+				     0x3c 0x95A4F1E0>;
+	};
diff --git a/Documentation/devicetree/bindings/c6x/emifa.txt b/Documentation/devicetree/bindings/c6x/emifa.txt
new file mode 100644
index 000000000000..0ff6e9b9a13f
--- /dev/null
+++ b/Documentation/devicetree/bindings/c6x/emifa.txt
@@ -0,0 +1,62 @@
+External Memory Interface
+-------------------------
+
+The emifa node describes a simple external bus controller found on some C6X
+SoCs. This interface provides external busses with a number of chip selects.
+
+Required properties:
+
+- compatible: must be "ti,c64x+emifa", "simple-bus"
+- reg: register area base and size
+- #address-cells: must be 2 (chip-select + offset)
+- #size-cells: must be 1
+- ranges: mapping from EMIFA space to parent space
+
+
+Optional properties:
+
+- ti,dscr-dev-enable: Device ID if EMIF is enabled/disabled from DSCR
+
+- ti,emifa-burst-priority:
+      Number of memory transfers after which the EMIF will elevate the priority
+      of the oldest command in the command FIFO. Setting this field to 255
+      disables this feature, thereby allowing old commands to stay in the FIFO
+      indefinitely.
+
+- ti,emifa-ce-config:
+      Configuration values for each of the supported chip selects.
+
+Example:
+
+	emifa@70000000 {
+		compatible = "ti,c64x+emifa", "simple-bus";
+		#address-cells = <2>;
+		#size-cells = <1>;
+		reg = <0x70000000 0x100>;
+		ranges = <0x2 0x0 0xa0000000 0x00000008
+		          0x3 0x0 0xb0000000 0x00400000
+			  0x4 0x0 0xc0000000 0x10000000
+			  0x5 0x0 0xD0000000 0x10000000>;
+
+		ti,dscr-dev-enable = <13>;
+		ti,emifa-burst-priority = <255>;
+		ti,emifa-ce-config = <0x00240120
+				      0x00240120
+				      0x00240122
+				      0x00240122>;
+
+		flash@3,0 {
+			#address-cells = <1>;
+			#size-cells = <1>;
+			compatible = "cfi-flash";
+			reg = <0x3 0x0 0x400000>;
+			bank-width = <1>;
+			device-width = <1>;
+			partition@0 {
+				reg = <0x0 0x400000>;
+				label = "NOR";
+			};
+		};
+	};
+
+This shows a flash chip attached to chip select 3.
diff --git a/Documentation/devicetree/bindings/c6x/interrupt.txt b/Documentation/devicetree/bindings/c6x/interrupt.txt
new file mode 100644
index 000000000000..42bb796cc4ad
--- /dev/null
+++ b/Documentation/devicetree/bindings/c6x/interrupt.txt
@@ -0,0 +1,104 @@
+C6X Interrupt Chips
+-------------------
+
+* C64X+ Core Interrupt Controller
+
+  The core interrupt controller provides 16 prioritized interrupts to the
+  C64X+ core. Priority 0 and 1 are used for reset and NMI respectively.
+  Priority 2 and 3 are reserved. Priority 4-15 are used for interrupt
+  sources coming from outside the core.
+
+  Required properties:
+  --------------------
+  - compatible: Should be "ti,c64x+core-pic";
+  - #interrupt-cells: <1>
+
+  Interrupt Specifier Definition
+  ------------------------------
+  Single cell specifying the core interrupt priority level (4-15) where
+  4 is highest priority and 15 is lowest priority.
+
+  Example
+  -------
+  core_pic: interrupt-controller@0 {
+	interrupt-controller;
+	#interrupt-cells = <1>;
+	compatible = "ti,c64x+core-pic";
+  };
+
+
+
+* C64x+ Megamodule Interrupt Controller
+
+  The megamodule PIC consists of four interrupt mupliplexers each of which
+  combine up to 32 interrupt inputs into a single interrupt output which
+  may be cascaded into the core interrupt controller. The megamodule PIC
+  has a total of 12 outputs cascading into the core interrupt controller.
+  One for each core interrupt priority level. In addition to the combined
+  interrupt sources, individual megamodule interrupts may be cascaded to
+  the core interrupt controller. When an individual interrupt is cascaded,
+  it is no longer handled through a megamodule interrupt combiner and is
+  considered to have the core interrupt controller as the parent.
+
+  Required properties:
+  --------------------
+  - compatible: "ti,c64x+megamod-pic"
+  - interrupt-controller
+  - #interrupt-cells: <1>
+  - reg: base address and size of register area
+  - interrupt-parent: must be core interrupt controller
+  - interrupts: This should have four cells; one for each interrupt combiner.
+                The cells contain the core priority interrupt to which the
+                corresponding combiner output is wired.
+
+  Optional properties:
+  --------------------
+  - ti,c64x+megamod-pic-mux: Array of 12 cells correspnding to the 12 core
+                             priority interrupts. The first cell corresponds to
+                             core priority 4 and the last cell corresponds to
+                             core priority 15. The value of each cell is the
+                             megamodule interrupt source which is MUXed to
+                             the core interrupt corresponding to the cell
+                             position. Allowed values are 4 - 127. Mapping for
+                             interrupts 0 - 3 (combined interrupt sources) are
+                             ignored.
+
+  Interrupt Specifier Definition
+  ------------------------------
+  Single cell specifying the megamodule interrupt source (4-127). Note that
+  interrupts mapped directly to the core with "ti,c64x+megamod-pic-mux" will
+  use the core interrupt controller as their parent and the specifier will
+  be the core priority level, not the megamodule interrupt number.
+
+  Examples
+  --------
+  megamod_pic: interrupt-controller@1800000 {
+	compatible = "ti,c64x+megamod-pic";
+	interrupt-controller;
+	#interrupt-cells = <1>;
+	reg = <0x1800000 0x1000>;
+	interrupt-parent = <&core_pic>;
+	interrupts = < 12 13 14 15 >;
+  };
+
+  This is a minimal example where all individual interrupts go through a
+  combiner. Combiner-0 is mapped to core interrupt 12, combiner-1 is mapped
+  to interrupt 13, etc.
+
+
+  megamod_pic: interrupt-controller@1800000 {
+	compatible = "ti,c64x+megamod-pic";
+	interrupt-controller;
+	#interrupt-cells = <1>;
+	reg = <0x1800000 0x1000>;
+	interrupt-parent = <&core_pic>;
+	interrupts = < 12 13 14 15 >;
+	ti,c64x+megamod-pic-mux = <  0  0  0  0
+                                    32  0  0  0
+                                     0  0  0  0 >;
+  };
+
+  This the same as the first example except that megamodule interrupt 32 is
+  mapped directly to core priority interrupt 8. The node using this interrupt
+  must set the core controller as its interrupt parent and use 8 in the
+  interrupt specifier value.
diff --git a/Documentation/devicetree/bindings/c6x/soc.txt b/Documentation/devicetree/bindings/c6x/soc.txt
new file mode 100644
index 000000000000..b1e4973b5769
--- /dev/null
+++ b/Documentation/devicetree/bindings/c6x/soc.txt
@@ -0,0 +1,28 @@
+C6X System-on-Chip
+------------------
+
+Required properties:
+
+- compatible: "simple-bus"
+- #address-cells: must be 1
+- #size-cells: must be 1
+- ranges
+
+Optional properties:
+
+- model: specific SoC model
+
+- nodes for IP blocks within SoC
+
+
+Example:
+
+	soc {
+		compatible = "simple-bus";
+		model = "tms320c6455";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		...
+	};
diff --git a/Documentation/devicetree/bindings/c6x/timer64.txt b/Documentation/devicetree/bindings/c6x/timer64.txt
new file mode 100644
index 000000000000..95911fe70224
--- /dev/null
+++ b/Documentation/devicetree/bindings/c6x/timer64.txt
@@ -0,0 +1,26 @@
+Timer64
+-------
+
+The timer64 node describes C6X event timers.
+
+Required properties:
+
+- compatible: must be "ti,c64x+timer64"
+- reg: base address and size of register region
+- interrupt-parent: interrupt controller
+- interrupts: interrupt id
+
+Optional properties:
+
+- ti,dscr-dev-enable: Device ID used to enable timer IP through DSCR interface.
+
+- ti,core-mask: on multi-core SoCs, bitmask of cores allowed to use this timer.
+
+Example:
+	timer0: timer@25e0000 {
+		compatible = "ti,c64x+timer64";
+		ti,core-mask = < 0x01 >;
+		reg = <0x25e0000 0x40>;
+		interrupt-parent = <&megamod_pic>;
+		interrupts = < 16 >;
+	};
diff --git a/Documentation/devicetree/bindings/dma/arm-pl330.txt b/Documentation/devicetree/bindings/dma/arm-pl330.txt
new file mode 100644
index 000000000000..a4cd273b2a67
--- /dev/null
+++ b/Documentation/devicetree/bindings/dma/arm-pl330.txt
@@ -0,0 +1,30 @@
+* ARM PrimeCell PL330 DMA Controller
+
+The ARM PrimeCell PL330 DMA controller can move blocks of memory contents
+between memory and peripherals or memory to memory.
+
+Required properties:
+  - compatible: should include both "arm,pl330" and "arm,primecell".
+  - reg: physical base address of the controller and length of memory mapped
+    region.
+  - interrupts: interrupt number to the cpu.
+
+Example:
+
+	pdma0: pdma@12680000 {
+		compatible = "arm,pl330", "arm,primecell";
+		reg = <0x12680000 0x1000>;
+		interrupts = <99>;
+	};
+
+Client drivers (device nodes requiring dma transfers from dev-to-mem or
+mem-to-dev) should specify the DMA channel numbers using a two-value pair
+as shown below.
+
+  [property name]  = <[phandle of the dma controller] [dma request id]>;
+
+      where 'dma request id' is the dma request number which is connected
+      to the client controller. The 'property name' is recommended to be
+      of the form <name>-dma-channel.
+
+  Example:  tx-dma-channel = <&pdma0 12>;
diff --git a/Documentation/devicetree/bindings/gpio/gpio-samsung.txt b/Documentation/devicetree/bindings/gpio/gpio-samsung.txt
new file mode 100644
index 000000000000..8f50fe5e6c42
--- /dev/null
+++ b/Documentation/devicetree/bindings/gpio/gpio-samsung.txt
@@ -0,0 +1,40 @@
+Samsung Exynos4 GPIO Controller
+
+Required properties:
+- compatible: Compatible property value should be "samsung,exynos4-gpio>".
+
+- reg: Physical base address of the controller and length of memory mapped
+  region.
+
+- #gpio-cells: Should be 4. The syntax of the gpio specifier used by client nodes
+  should be the following with values derived from the SoC user manual.
+     <[phandle of the gpio controller node]
+      [pin number within the gpio controller]
+      [mux function]
+      [pull up/down]
+      [drive strength]>
+
+  Values for gpio specifier:
+  - Pin number: is a value between 0 to 7.
+  - Pull Up/Down: 0 - Pull Up/Down Disabled.
+                  1 - Pull Down Enabled.
+                  3 - Pull Up Enabled.
+  - Drive Strength: 0 - 1x,
+                    1 - 3x,
+                    2 - 2x,
+                    3 - 4x
+
+- gpio-controller: Specifies that the node is a gpio controller.
+- #address-cells: should be 1.
+- #size-cells: should be 1.
+
+Example:
+
+	gpa0: gpio-controller@11400000 {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "samsung,exynos4-gpio";
+		reg = <0x11400000 0x20>;
+		#gpio-cells = <4>;
+		gpio-controller;
+	};
diff --git a/Documentation/devicetree/bindings/input/samsung-keypad.txt b/Documentation/devicetree/bindings/input/samsung-keypad.txt
new file mode 100644
index 000000000000..ce3e394c0e64
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/samsung-keypad.txt
@@ -0,0 +1,88 @@
+* Samsung's Keypad Controller device tree bindings
+
+Samsung's Keypad controller is used to interface a SoC with a matrix-type
+keypad device. The keypad controller supports multiple row and column lines.
+A key can be placed at each intersection of a unique row and a unique column.
+The keypad controller can sense a key-press and key-release and report the
+event using a interrupt to the cpu.
+
+Required SoC Specific Properties:
+- compatible: should be one of the following
+  - "samsung,s3c6410-keypad": For controllers compatible with s3c6410 keypad
+    controller.
+  - "samsung,s5pv210-keypad": For controllers compatible with s5pv210 keypad
+    controller.
+
+- reg: physical base address of the controller and length of memory mapped
+  region.
+
+- interrupts: The interrupt number to the cpu.
+
+Required Board Specific Properties:
+- samsung,keypad-num-rows: Number of row lines connected to the keypad
+  controller.
+
+- samsung,keypad-num-columns: Number of column lines connected to the
+  keypad controller.
+
+- row-gpios: List of gpios used as row lines. The gpio specifier for
+  this property depends on the gpio controller to which these row lines
+  are connected.
+
+- col-gpios: List of gpios used as column lines. The gpio specifier for
+  this property depends on the gpio controller to which these column
+  lines are connected.
+
+- Keys represented as child nodes: Each key connected to the keypad
+  controller is represented as a child node to the keypad controller
+  device node and should include the following properties.
+  - keypad,row: the row number to which the key is connected.
+  - keypad,column: the column number to which the key is connected.
+  - linux,code: the key-code to be reported when the key is pressed
+    and released.
+
+Optional Properties specific to linux:
+- linux,keypad-no-autorepeat: do no enable autorepeat feature.
+- linux,keypad-wakeup: use any event on keypad as wakeup event.
+
+
+Example:
+	keypad@100A0000 {
+		compatible = "samsung,s5pv210-keypad";
+		reg = <0x100A0000 0x100>;
+		interrupts = <173>;
+		samsung,keypad-num-rows = <2>;
+		samsung,keypad-num-columns = <8>;
+		linux,input-no-autorepeat;
+		linux,input-wakeup;
+
+		row-gpios = <&gpx2 0 3 3 0
+			     &gpx2 1 3 3 0>;
+
+		col-gpios = <&gpx1 0 3 0 0
+			     &gpx1 1 3 0 0
+			     &gpx1 2 3 0 0
+			     &gpx1 3 3 0 0
+			     &gpx1 4 3 0 0
+			     &gpx1 5 3 0 0
+			     &gpx1 6 3 0 0
+			     &gpx1 7 3 0 0>;
+
+		key_1 {
+			keypad,row = <0>;
+			keypad,column = <3>;
+			linux,code = <2>;
+		};
+
+		key_2 {
+			keypad,row = <0>;
+			keypad,column = <4>;
+			linux,code = <3>;
+		};
+
+		key_3 {
+			keypad,row = <0>;
+			keypad,column = <5>;
+			linux,code = <4>;
+		};
+	};
diff --git a/Documentation/devicetree/bindings/input/tegra-kbc.txt b/Documentation/devicetree/bindings/input/tegra-kbc.txt
new file mode 100644
index 000000000000..5ecfa99089b4
--- /dev/null
+++ b/Documentation/devicetree/bindings/input/tegra-kbc.txt
@@ -0,0 +1,18 @@
+* Tegra keyboard controller
+
+Required properties:
+- compatible: "nvidia,tegra20-kbc"
+
+Optional properties:
+- debounce-delay: delay in milliseconds per row scan for debouncing
+- repeat-delay: delay in milliseconds before repeat starts
+- ghost-filter: enable ghost filtering for this device
+- wakeup-source: configure keyboard as a wakeup source for suspend/resume
+
+Example:
+
+keyboard: keyboard {
+	compatible = "nvidia,tegra20-kbc";
+	reg = <0x7000e200 0x100>;
+	ghost-filter;
+};
diff --git a/Documentation/devicetree/bindings/mtd/gpio-control-nand.txt b/Documentation/devicetree/bindings/mtd/gpio-control-nand.txt
new file mode 100644
index 000000000000..719f4dc58df7
--- /dev/null
+++ b/Documentation/devicetree/bindings/mtd/gpio-control-nand.txt
@@ -0,0 +1,44 @@
+GPIO assisted NAND flash
+
+The GPIO assisted NAND flash uses a memory mapped interface to
+read/write the NAND commands and data and GPIO pins for the control
+signals.
+
+Required properties:
+- compatible : "gpio-control-nand"
+- reg : should specify localbus chip select and size used for the chip.  The
+  resource describes the data bus connected to the NAND flash and all accesses
+  are made in native endianness.
+- #address-cells, #size-cells : Must be present if the device has sub-nodes
+  representing partitions.
+- gpios : specifies the gpio pins to control the NAND device.  nwp is an
+  optional gpio and may be set to 0 if not present.
+
+Optional properties:
+- bank-width : Width (in bytes) of the device.  If not present, the width
+  defaults to 1 byte.
+- chip-delay : chip dependent delay for transferring data from array to
+  read registers (tR).  If not present then a default of 20us is used.
+- gpio-control-nand,io-sync-reg : A 64-bit physical address for a read
+  location used to guard against bus reordering with regards to accesses to
+  the GPIO's and the NAND flash data bus.  If present, then after changing
+  GPIO state and before and after command byte writes, this register will be
+  read to ensure that the GPIO accesses have completed.
+
+Examples:
+
+gpio-nand@1,0 {
+	compatible = "gpio-control-nand";
+	reg = <1 0x0000 0x2>;
+	#address-cells = <1>;
+	#size-cells = <1>;
+	gpios = <&banka 1 0	/* rdy */
+		 &banka 2 0 	/* nce */
+		 &banka 3 0 	/* ale */
+		 &banka 4 0 	/* cle */
+		 0		/* nwp */>;
+
+	partition@0 {
+	...
+	};
+};
diff --git a/Documentation/devicetree/bindings/net/macb.txt b/Documentation/devicetree/bindings/net/macb.txt
new file mode 100644
index 000000000000..44afa0e5057d
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/macb.txt
@@ -0,0 +1,25 @@
+* Cadence MACB/GEM Ethernet controller
+
+Required properties:
+- compatible: Should be "cdns,[<chip>-]{macb|gem}"
+  Use "cdns,at91sam9260-macb" Atmel at91sam9260 and at91sam9263 SoCs.
+  Use "cdns,at32ap7000-macb" for other 10/100 usage or use the generic form: "cdns,macb".
+  Use "cnds,pc302-gem" for Picochip picoXcell pc302 and later devices based on
+  the Cadence GEM, or the generic form: "cdns,gem".
+- reg: Address and length of the register set for the device
+- interrupts: Should contain macb interrupt
+- phy-mode: String, operation mode of the PHY interface.
+  Supported values are: "mii", "rmii", "gmii", "rgmii".
+
+Optional properties:
+- local-mac-address: 6 bytes, mac address
+
+Examples:
+
+	macb0: ethernet@fffc4000 {
+		compatible = "cdns,at32ap7000-macb";
+		reg = <0xfffc4000 0x4000>;
+		interrupts = <21>;
+		phy-mode = "rmii";
+		local-mac-address = [3a 0e 03 04 05 06];
+	};
diff --git a/Documentation/devicetree/bindings/nvec/nvec_nvidia.txt b/Documentation/devicetree/bindings/nvec/nvec_nvidia.txt
new file mode 100644
index 000000000000..5aeee53ff9f4
--- /dev/null
+++ b/Documentation/devicetree/bindings/nvec/nvec_nvidia.txt
@@ -0,0 +1,9 @@
+NVIDIA compliant embedded controller
+
+Required properties:
+- compatible : should be "nvidia,nvec".
+- reg : the iomem of the i2c slave controller
+- interrupts : the interrupt line of the i2c slave controller
+- clock-frequency : the frequency of the i2c bus
+- gpios : the gpio used for ec request
+- slave-addr: the i2c address of the slave controller
diff --git a/Documentation/devicetree/bindings/regulator/fixed-regulator.txt b/Documentation/devicetree/bindings/regulator/fixed-regulator.txt
new file mode 100644
index 000000000000..9cf57fd042d2
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/fixed-regulator.txt
@@ -0,0 +1,29 @@
+Fixed Voltage regulators
+
+Required properties:
+- compatible: Must be "regulator-fixed";
+
+Optional properties:
+- gpio: gpio to use for enable control
+- startup-delay-us: startup time in microseconds
+- enable-active-high: Polarity of GPIO is Active high
+If this property is missing, the default assumed is Active low.
+
+Any property defined as part of the core regulator
+binding, defined in regulator.txt, can also be used.
+However a fixed voltage regulator is expected to have the
+regulator-min-microvolt and regulator-max-microvolt
+to be the same.
+
+Example:
+
+	abc: fixedregulator@0 {
+		compatible = "regulator-fixed";
+		regulator-name = "fixed-supply";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		gpio = <&gpio1 16 0>;
+		startup-delay-us = <70000>;
+		enable-active-high;
+		regulator-boot-on
+	};
diff --git a/Documentation/devicetree/bindings/regulator/regulator.txt b/Documentation/devicetree/bindings/regulator/regulator.txt
new file mode 100644
index 000000000000..5b7a408acdaa
--- /dev/null
+++ b/Documentation/devicetree/bindings/regulator/regulator.txt
@@ -0,0 +1,54 @@
+Voltage/Current Regulators
+
+Optional properties:
+- regulator-name: A string used as a descriptive name for regulator outputs
+- regulator-min-microvolt: smallest voltage consumers may set
+- regulator-max-microvolt: largest voltage consumers may set
+- regulator-microvolt-offset: Offset applied to voltages to compensate for voltage drops
+- regulator-min-microamp: smallest current consumers may set
+- regulator-max-microamp: largest current consumers may set
+- regulator-always-on: boolean, regulator should never be disabled
+- regulator-boot-on: bootloader/firmware enabled regulator
+- <name>-supply: phandle to the parent supply/regulator node
+
+Example:
+
+	xyzreg: regulator@0 {
+		regulator-min-microvolt = <1000000>;
+		regulator-max-microvolt = <2500000>;
+		regulator-always-on;
+		vin-supply = <&vin>;
+	};
+
+Regulator Consumers:
+Consumer nodes can reference one or more of its supplies/
+regulators using the below bindings.
+
+- <name>-supply: phandle to the regulator node
+
+These are the same bindings that a regulator in the above
+example used to reference its own supply, in which case
+its just seen as a special case of a regulator being a
+consumer itself.
+
+Example of a consumer device node (mmc) referencing two
+regulators (twl_reg1 and twl_reg2),
+
+	twl_reg1: regulator@0 {
+		...
+		...
+		...
+	};
+
+	twl_reg2: regulator@1 {
+		...
+		...
+		...
+	};
+
+	mmc: mmc@0x0 {
+		...
+		...
+		vmmc-supply = <&twl_reg1>;
+		vmmcaux-supply = <&twl_reg2>;
+	};
diff --git a/Documentation/devicetree/bindings/rtc/s3c-rtc.txt b/Documentation/devicetree/bindings/rtc/s3c-rtc.txt
new file mode 100644
index 000000000000..90ec45fd33ec
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/s3c-rtc.txt
@@ -0,0 +1,20 @@
+* Samsung's S3C Real Time Clock controller
+
+Required properties:
+- compatible: should be one of the following.
+    * "samsung,s3c2410-rtc" - for controllers compatible with s3c2410 rtc.
+    * "samsung,s3c6410-rtc" - for controllers compatible with s3c6410 rtc.
+- reg: physical base address of the controller and length of memory mapped
+  region.
+- interrupts: Two interrupt numbers to the cpu should be specified. First
+  interrupt number is the rtc alarm interupt and second interrupt number
+  is the rtc tick interrupt. The number of cells representing a interrupt
+  depends on the parent interrupt controller.
+
+Example:
+
+	rtc@10070000 {
+		compatible = "samsung,s3c6410-rtc";
+		reg = <0x10070000 0x100>;
+		interrupts = <44 0 45 0>;
+	};
diff --git a/Documentation/devicetree/bindings/rtc/twl-rtc.txt b/Documentation/devicetree/bindings/rtc/twl-rtc.txt
new file mode 100644
index 000000000000..596e0c97be7a
--- /dev/null
+++ b/Documentation/devicetree/bindings/rtc/twl-rtc.txt
@@ -0,0 +1,12 @@
+* TI twl RTC
+
+The TWL family (twl4030/6030) contains a RTC.
+
+Required properties:
+- compatible : Should be twl4030-rtc
+
+Examples:
+
+rtc@0 {
+    compatible = "ti,twl4030-rtc";
+};
diff --git a/Documentation/devicetree/bindings/serial/omap_serial.txt b/Documentation/devicetree/bindings/serial/omap_serial.txt
new file mode 100644
index 000000000000..342eedd10050
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/omap_serial.txt
@@ -0,0 +1,10 @@
+OMAP UART controller
+
+Required properties:
+- compatible : should be "ti,omap2-uart" for OMAP2 controllers
+- compatible : should be "ti,omap3-uart" for OMAP3 controllers
+- compatible : should be "ti,omap4-uart" for OMAP4 controllers
+- ti,hwmods : Must be "uart<n>", n being the instance number (1-based)
+
+Optional properties:
+- clock-frequency : frequency of the clock input to the UART
diff --git a/Documentation/devicetree/bindings/serial/samsung_uart.txt b/Documentation/devicetree/bindings/serial/samsung_uart.txt
new file mode 100644
index 000000000000..2c8a17cf5cb5
--- /dev/null
+++ b/Documentation/devicetree/bindings/serial/samsung_uart.txt
@@ -0,0 +1,14 @@
+* Samsung's UART Controller
+
+The Samsung's UART controller is used for interfacing SoC with serial communicaion
+devices.
+
+Required properties:
+- compatible: should be
+  - "samsung,exynos4210-uart", for UART's compatible with Exynos4210 uart ports.
+
+- reg: base physical address of the controller and length of memory mapped
+  region.
+
+- interrupts: interrupt number to the cpu. The interrupt specifier format depends
+  on the interrupt controller parent.
diff --git a/Documentation/devicetree/bindings/usb/tegra-usb.txt b/Documentation/devicetree/bindings/usb/tegra-usb.txt
new file mode 100644
index 000000000000..035d63d5646d
--- /dev/null
+++ b/Documentation/devicetree/bindings/usb/tegra-usb.txt
@@ -0,0 +1,13 @@
+Tegra SOC USB controllers
+
+The device node for a USB controller that is part of a Tegra
+SOC is as described in the document "Open Firmware Recommended
+Practice : Universal Serial Bus" with the following modifications
+and additions :
+
+Required properties :
+ - compatible : Should be "nvidia,tegra20-ehci" for USB controllers
+   used in host mode.
+ - phy_type : Should be one of "ulpi" or "utmi".
+ - nvidia,vbus-gpio : If present, specifies a gpio that needs to be
+   activated for the bus to be powered.
diff --git a/Documentation/dontdiff b/Documentation/dontdiff
index dfa6fc6e4b28..0c083c5c2faa 100644
--- a/Documentation/dontdiff
+++ b/Documentation/dontdiff
@@ -66,7 +66,6 @@ GRTAGS
 GSYMS
 GTAGS
 Image
-Kerntypes
 Module.markers
 Module.symvers
 PENDING
diff --git a/Documentation/feature-removal-schedule.txt b/Documentation/feature-removal-schedule.txt
index a1e7f3eec98f..5575759b84ee 100644
--- a/Documentation/feature-removal-schedule.txt
+++ b/Documentation/feature-removal-schedule.txt
@@ -350,15 +350,6 @@ Who: 	anybody or Florian Mickler <florian@mickler.org>
 
 ----------------------------
 
-What:	KVM paravirt mmu host support
-When:	January 2011
-Why:	The paravirt mmu host support is slower than non-paravirt mmu, both
-	on newer and older hardware.  It is already not exposed to the guest,
-	and kept only for live migration purposes.
-Who:	Avi Kivity <avi@redhat.com>
-
-----------------------------
-
 What:	iwlwifi 50XX module parameters
 When:	3.0
 Why:	The "..50" modules parameters were used to configure 5000 series and
@@ -523,6 +514,20 @@ Why:    In 3.0, we can now autodetect internal 3G device and already have
 	information log when acer-wmi initial.
 Who:    Lee, Chun-Yi <jlee@novell.com>
 
+---------------------------
+
+What:	/sys/devices/platform/_UDC_/udc/_UDC_/is_dualspeed file and
+	is_dualspeed line in /sys/devices/platform/ci13xxx_*/udc/device file.
+When:	3.8
+Why:	The is_dualspeed file is superseded by maximum_speed in the same
+	directory and is_dualspeed line in device file is superseded by
+	max_speed line in the same file.
+
+	The maximum_speed/max_speed specifies maximum speed supported by UDC.
+	To check if dualspeeed is supported, check if the value is >= 3.
+	Various possible speeds are defined in <linux/usb/ch9.h>.
+Who:	Michal Nazarewicz <mina86@mina86.com>
+
 ----------------------------
 
 What:	The XFS nodelaylog mount option
diff --git a/Documentation/filesystems/ext4.txt b/Documentation/filesystems/ext4.txt
index 4917cf24a5e0..10ec4639f152 100644
--- a/Documentation/filesystems/ext4.txt
+++ b/Documentation/filesystems/ext4.txt
@@ -581,6 +581,13 @@ Table of Ext4 specific ioctls
 			      behaviour may change in the future as it is
 			      not necessary and has been done this way only
 			      for sake of simplicity.
+
+ EXT4_IOC_RESIZE_FS	      Resize the filesystem to a new size.  The number
+			      of blocks of resized filesystem is passed in via
+			      64 bit integer argument.  The kernel allocates
+			      bitmaps and inode table, the userspace tool thus
+			      just passes the new number of blocks.
+
 ..............................................................................
 
 References
diff --git a/Documentation/filesystems/proc.txt b/Documentation/filesystems/proc.txt
index 0ec91f03422e..12fee132fbe2 100644
--- a/Documentation/filesystems/proc.txt
+++ b/Documentation/filesystems/proc.txt
@@ -41,6 +41,8 @@ Table of Contents
   3.5	/proc/<pid>/mountinfo - Information about mounts
   3.6	/proc/<pid>/comm  & /proc/<pid>/task/<tid>/comm
 
+  4	Configuring procfs
+  4.1	Mount options
 
 ------------------------------------------------------------------------------
 Preface
@@ -1542,3 +1544,40 @@ a task to set its own or one of its thread siblings comm value. The comm value
 is limited in size compared to the cmdline value, so writing anything longer
 then the kernel's TASK_COMM_LEN (currently 16 chars) will result in a truncated
 comm value.
+
+
+------------------------------------------------------------------------------
+Configuring procfs
+------------------------------------------------------------------------------
+
+4.1	Mount options
+---------------------
+
+The following mount options are supported:
+
+	hidepid=	Set /proc/<pid>/ access mode.
+	gid=		Set the group authorized to learn processes information.
+
+hidepid=0 means classic mode - everybody may access all /proc/<pid>/ directories
+(default).
+
+hidepid=1 means users may not access any /proc/<pid>/ directories but their
+own.  Sensitive files like cmdline, sched*, status are now protected against
+other users.  This makes it impossible to learn whether any user runs
+specific program (given the program doesn't reveal itself by its behaviour).
+As an additional bonus, as /proc/<pid>/cmdline is unaccessible for other users,
+poorly written programs passing sensitive information via program arguments are
+now protected against local eavesdroppers.
+
+hidepid=2 means hidepid=1 plus all /proc/<pid>/ will be fully invisible to other
+users.  It doesn't mean that it hides a fact whether a process with a specific
+pid value exists (it can be learned by other means, e.g. by "kill -0 $PID"),
+but it hides process' uid and gid, which may be learned by stat()'ing
+/proc/<pid>/ otherwise.  It greatly complicates an intruder's task of gathering
+information about running processes, whether some daemon runs with elevated
+privileges, whether other user runs some sensitive program, whether other users
+run any program at all, etc.
+
+gid= defines a group authorized to learn processes information otherwise
+prohibited by hidepid=.  If you use some daemon like identd which needs to learn
+information about processes information, just add identd to this group.
diff --git a/Documentation/input/alps.txt b/Documentation/input/alps.txt
new file mode 100644
index 000000000000..f274c28b5103
--- /dev/null
+++ b/Documentation/input/alps.txt
@@ -0,0 +1,188 @@
+ALPS Touchpad Protocol
+----------------------
+
+Introduction
+------------
+
+Currently the ALPS touchpad driver supports four protocol versions in use by
+ALPS touchpads, called versions 1, 2, 3, and 4. Information about the various
+protocol versions is contained in the following sections.
+
+Detection
+---------
+
+All ALPS touchpads should respond to the "E6 report" command sequence:
+E8-E6-E6-E6-E9. An ALPS touchpad should respond with either 00-00-0A or
+00-00-64.
+
+If the E6 report is successful, the touchpad model is identified using the "E7
+report" sequence: E8-E7-E7-E7-E9. The response is the model signature and is
+matched against known models in the alps_model_data_array.
+
+With protocol versions 3 and 4, the E7 report model signature is always
+73-02-64. To differentiate between these versions, the response from the
+"Enter Command Mode" sequence must be inspected as described below.
+
+Command Mode
+------------
+
+Protocol versions 3 and 4 have a command mode that is used to read and write
+one-byte device registers in a 16-bit address space. The command sequence
+EC-EC-EC-E9 places the device in command mode, and the device will respond
+with 88-07 followed by a third byte. This third byte can be used to determine
+whether the devices uses the version 3 or 4 protocol.
+
+To exit command mode, PSMOUSE_CMD_SETSTREAM (EA) is sent to the touchpad.
+
+While in command mode, register addresses can be set by first sending a
+specific command, either EC for v3 devices or F5 for v4 devices. Then the
+address is sent one nibble at a time, where each nibble is encoded as a
+command with optional data. This enoding differs slightly between the v3 and
+v4 protocols.
+
+Once an address has been set, the addressed register can be read by sending
+PSMOUSE_CMD_GETINFO (E9). The first two bytes of the response contains the
+address of the register being read, and the third contains the value of the
+register. Registers are written by writing the value one nibble at a time
+using the same encoding used for addresses.
+
+Packet Format
+-------------
+
+In the following tables, the following notation is used.
+
+ CAPITALS = stick, miniscules = touchpad
+
+?'s can have different meanings on different models, such as wheel rotation,
+extra buttons, stick buttons on a dualpoint, etc.
+
+PS/2 packet format
+------------------
+
+ byte 0:  0    0 YSGN XSGN    1    M    R    L
+ byte 1: X7   X6   X5   X4   X3   X2   X1   X0
+ byte 2: Y7   Y6   Y5   Y4   Y3   Y2   Y1   Y0
+
+Note that the device never signals overflow condition.
+
+ALPS Absolute Mode - Protocol Verion 1
+--------------------------------------
+
+ byte 0:  1    0    0    0    1   x9   x8   x7
+ byte 1:  0   x6   x5   x4   x3   x2   x1   x0
+ byte 2:  0    ?    ?    l    r    ?  fin  ges
+ byte 3:  0    ?    ?    ?    ?   y9   y8   y7
+ byte 4:  0   y6   y5   y4   y3   y2   y1   y0
+ byte 5:  0   z6   z5   z4   z3   z2   z1   z0
+
+ALPS Absolute Mode - Protocol Version 2
+---------------------------------------
+
+ byte 0:  1    ?    ?    ?    1    ?    ?    ?
+ byte 1:  0   x6   x5   x4   x3   x2   x1   x0
+ byte 2:  0  x10   x9   x8   x7    ?  fin  ges
+ byte 3:  0   y9   y8   y7    1    M    R    L
+ byte 4:  0   y6   y5   y4   y3   y2   y1   y0
+ byte 5:  0   z6   z5   z4   z3   z2   z1   z0
+
+Dualpoint device -- interleaved packet format
+---------------------------------------------
+
+ byte 0:    1    1    0    0    1    1    1    1
+ byte 1:    0   x6   x5   x4   x3   x2   x1   x0
+ byte 2:    0  x10   x9   x8   x7    0  fin  ges
+ byte 3:    0    0 YSGN XSGN    1    1    1    1
+ byte 4:   X7   X6   X5   X4   X3   X2   X1   X0
+ byte 5:   Y7   Y6   Y5   Y4   Y3   Y2   Y1   Y0
+ byte 6:    0   y9   y8   y7    1    m    r    l
+ byte 7:    0   y6   y5   y4   y3   y2   y1   y0
+ byte 8:    0   z6   z5   z4   z3   z2   z1   z0
+
+ALPS Absolute Mode - Protocol Version 3
+---------------------------------------
+
+ALPS protocol version 3 has three different packet formats. The first two are
+associated with touchpad events, and the third is associatd with trackstick
+events.
+
+The first type is the touchpad position packet.
+
+ byte 0:    1    ?   x1   x0    1    1    1    1
+ byte 1:    0  x10   x9   x8   x7   x6   x5   x4
+ byte 2:    0  y10   y9   y8   y7   y6   y5   y4
+ byte 3:    0    M    R    L    1    m    r    l
+ byte 4:    0   mt   x3   x2   y3   y2   y1   y0
+ byte 5:    0   z6   z5   z4   z3   z2   z1   z0
+
+Note that for some devices the trackstick buttons are reported in this packet,
+and on others it is reported in the trackstick packets.
+
+The second packet type contains bitmaps representing the x and y axes. In the
+bitmaps a given bit is set if there is a finger covering that position on the
+given axis. Thus the bitmap packet can be used for low-resolution multi-touch
+data, although finger tracking is not possible.  This packet also encodes the
+number of contacts (f1 and f0 in the table below).
+
+ byte 0:    1    1   x1   x0    1    1    1    1
+ byte 1:    0   x8   x7   x6   x5   x4   x3   x2
+ byte 2:    0   y7   y6   y5   y4   y3   y2   y1
+ byte 3:    0  y10   y9   y8    1    1    1    1
+ byte 4:    0  x14  x13  x12  x11  x10   x9   y0
+ byte 5:    0    1    ?    ?    ?    ?   f1   f0
+
+This packet only appears after a position packet with the mt bit set, and
+ususally only appears when there are two or more contacts (although
+ocassionally it's seen with only a single contact).
+
+The final v3 packet type is the trackstick packet.
+
+ byte 0:    1    1   x7   y7    1    1    1    1
+ byte 1:    0   x6   x5   x4   x3   x2   x1   x0
+ byte 2:    0   y6   y5   y4   y3   y2   y1   y0
+ byte 3:    0    1    0    0    1    0    0    0
+ byte 4:    0   z4   z3   z2   z1   z0    ?    ?
+ byte 5:    0    0    1    1    1    1    1    1
+
+ALPS Absolute Mode - Protocol Version 4
+---------------------------------------
+
+Protocol version 4 has an 8-byte packet format.
+
+ byte 0:    1    ?   x1   x0    1    1    1    1
+ byte 1:    0  x10   x9   x8   x7   x6   x5   x4
+ byte 2:    0  y10   y9   y8   y7   y6   y5   y4
+ byte 3:    0    1   x3   x2   y3   y2   y1   y0
+ byte 4:    0    ?    ?    ?    1    ?    r    l
+ byte 5:    0   z6   z5   z4   z3   z2   z1   z0
+ byte 6:    bitmap data (described below)
+ byte 7:    bitmap data (described below)
+
+The last two bytes represent a partial bitmap packet, with 3 full packets
+required to construct a complete bitmap packet.  Once assembled, the 6-byte
+bitmap packet has the following format:
+
+ byte 0:    0    1   x7   x6   x5   x4   x3   x2
+ byte 1:    0   x1   x0   y4   y3   y2   y1   y0
+ byte 2:    0    0    ?  x14  x13  x12  x11  x10
+ byte 3:    0   x9   x8   y9   y8   y7   y6   y5
+ byte 4:    0    0    0    0    0    0    0    0
+ byte 5:    0    0    0    0    0    0    0  y10
+
+There are several things worth noting here.
+
+ 1) In the bitmap data, bit 6 of byte 0 serves as a sync byte to
+    identify the first fragment of a bitmap packet.
+
+ 2) The bitmaps represent the same data as in the v3 bitmap packets, although
+    the packet layout is different.
+
+ 3) There doesn't seem to be a count of the contact points anywhere in the v4
+    protocol packets. Deriving a count of contact points must be done by
+    analyzing the bitmaps.
+
+ 4) There is a 3 to 1 ratio of position packets to bitmap packets. Therefore
+    MT position can only be updated for every third ST position update, and
+    the count of contact points can only be updated every third packet as
+    well.
+
+So far no v4 devices with tracksticks have been encountered.
diff --git a/Documentation/input/gpio-tilt.txt b/Documentation/input/gpio-tilt.txt
new file mode 100644
index 000000000000..06d60c3ff5e7
--- /dev/null
+++ b/Documentation/input/gpio-tilt.txt
@@ -0,0 +1,103 @@
+Driver for tilt-switches connected via GPIOs
+============================================
+
+Generic driver to read data from tilt switches connected via gpios.
+Orientation can be provided by one or more than one tilt switches,
+i.e. each tilt switch providing one axis, and the number of axes
+is also not limited.
+
+
+Data structures:
+----------------
+
+The array of struct gpio in the gpios field is used to list the gpios
+that represent the current tilt state.
+
+The array of struct gpio_tilt_axis describes the axes that are reported
+to the input system. The values set therein are used for the
+input_set_abs_params calls needed to init the axes.
+
+The array of struct gpio_tilt_state maps gpio states to the corresponding
+values to report. The gpio state is represented as a bitfield where the
+bit-index corresponds to the index of the gpio in the struct gpio array.
+In the same manner the values stored in the axes array correspond to
+the elements of the gpio_tilt_axis-array.
+
+
+Example:
+--------
+
+Example configuration for a single TS1003 tilt switch that rotates around
+one axis in 4 steps and emitts the current tilt via two GPIOs.
+
+static int sg060_tilt_enable(struct device *dev) {
+	/* code to enable the sensors */
+};
+
+static void sg060_tilt_disable(struct device *dev) {
+	/* code to disable the sensors */
+};
+
+static struct gpio sg060_tilt_gpios[] = {
+	{ SG060_TILT_GPIO_SENSOR1, GPIOF_IN, "tilt_sensor1" },
+	{ SG060_TILT_GPIO_SENSOR2, GPIOF_IN, "tilt_sensor2" },
+};
+
+static struct gpio_tilt_state sg060_tilt_states[] = {
+	{
+		.gpios = (0 << 1) | (0 << 0),
+		.axes = (int[]) {
+			0,
+		},
+	}, {
+		.gpios = (0 << 1) | (1 << 0),
+		.axes = (int[]) {
+			1, /* 90 degrees */
+		},
+	}, {
+		.gpios = (1 << 1) | (1 << 0),
+		.axes = (int[]) {
+			2, /* 180 degrees */
+		},
+	}, {
+		.gpios = (1 << 1) | (0 << 0),
+		.axes = (int[]) {
+			3, /* 270 degrees */
+		},
+	},
+};
+
+static struct gpio_tilt_axis sg060_tilt_axes[] = {
+	{
+		.axis = ABS_RY,
+		.min = 0,
+		.max = 3,
+		.fuzz = 0,
+		.flat = 0,
+	},
+};
+
+static struct gpio_tilt_platform_data sg060_tilt_pdata= {
+	.gpios = sg060_tilt_gpios,
+	.nr_gpios = ARRAY_SIZE(sg060_tilt_gpios),
+
+	.axes = sg060_tilt_axes,
+	.nr_axes = ARRAY_SIZE(sg060_tilt_axes),
+
+	.states = sg060_tilt_states,
+	.nr_states = ARRAY_SIZE(sg060_tilt_states),
+
+	.debounce_interval = 100,
+
+	.poll_interval = 1000,
+	.enable = sg060_tilt_enable,
+	.disable = sg060_tilt_disable,
+};
+
+static struct platform_device sg060_device_tilt = {
+	.name = "gpio-tilt-polled",
+	.id = -1,
+	.dev = {
+		.platform_data = &sg060_tilt_pdata,
+	},
+};
diff --git a/Documentation/input/sentelic.txt b/Documentation/input/sentelic.txt
index b2ef125b71f8..89251e2a3eba 100644
--- a/Documentation/input/sentelic.txt
+++ b/Documentation/input/sentelic.txt
@@ -1,5 +1,5 @@
-Copyright (C) 2002-2010 Sentelic Corporation.
-Last update: Jan-13-2010
+Copyright (C) 2002-2011 Sentelic Corporation.
+Last update: Dec-07-2011
 
 ==============================================================================
 * Finger Sensing Pad Intellimouse Mode(scrolling wheel, 4th and 5th buttons)
@@ -140,6 +140,7 @@ BYTE  |---------------|BYTE |---------------|BYTE|---------------|BYTE|---------
 Byte 1: Bit7~Bit6 => 00, Normal data packet
                   => 01, Absolute coordination packet
                   => 10, Notify packet
+                  => 11, Normal data packet with on-pad click
         Bit5 => Valid bit, 0 means that the coordinate is invalid or finger up.
                 When both fingers are up, the last two reports have zero valid
                 bit.
@@ -164,6 +165,7 @@ BYTE  |---------------|BYTE |---------------|BYTE|---------------|BYTE|---------
 Byte 1: Bit7~Bit6 => 00, Normal data packet
                   => 01, Absolute coordinates packet
                   => 10, Notify packet
+                  => 11, Normal data packet with on-pad click
         Bit5 => Valid bit, 0 means that the coordinate is invalid or finger up.
                 When both fingers are up, the last two reports have zero valid
                 bit.
@@ -188,6 +190,7 @@ BYTE  |---------------|BYTE |---------------|BYTE|---------------|BYTE|---------
 Byte 1: Bit7~Bit6 => 00, Normal data packet
                   => 01, Absolute coordinates packet
                   => 10, Notify packet
+                  => 11, Normal data packet with on-pad click
         Bit5 => 1
         Bit4 => when in absolute coordinates mode (valid when EN_PKT_GO is 1):
                 0: left button is generated by the on-pad command
@@ -205,7 +208,7 @@ Byte 4: Bit7 => scroll right button
         Bit6 => scroll left button
         Bit5 => scroll down button
         Bit4 => scroll up button
-            * Note that if gesture and additional buttoni (Bit4~Bit7)
+            * Note that if gesture and additional button (Bit4~Bit7)
               happen at the same time, the button information will not
               be sent.
         Bit3~Bit0 => Reserved
@@ -227,6 +230,7 @@ BYTE  |---------------|BYTE |---------------|BYTE|---------------|BYTE|---------
 Byte 1: Bit7~Bit6 => 00, Normal data packet
                   => 01, Absolute coordinates packet
                   => 10, Notify packet
+                  => 11, Normal data packet with on-pad click
         Bit5 => Valid bit, 0 means that the coordinate is invalid or finger up.
                 When both fingers are up, the last two reports have zero valid
                 bit.
@@ -253,6 +257,7 @@ BYTE  |---------------|BYTE |---------------|BYTE|---------------|BYTE|---------
 Byte 1: Bit7~Bit6 => 00, Normal data packet
                   => 01, Absolute coordination packet
                   => 10, Notify packet
+                  => 11, Normal data packet with on-pad click
         Bit5 => Valid bit, 0 means that the coordinate is invalid or finger up.
                 When both fingers are up, the last two reports have zero valid
                 bit.
@@ -279,8 +284,9 @@ BYTE  |---------------|BYTE |---------------|BYTE|---------------|BYTE|---------
 Byte 1: Bit7~Bit6 => 00, Normal data packet
                   => 01, Absolute coordination packet
                   => 10, Notify packet
+                  => 11, Normal data packet with on-pad click
         Bit5 => 1
-        Bit4 => when in absolute coordinate mode (valid when EN_PKT_GO is 1):
+        Bit4 => when in absolute coordinates mode (valid when EN_PKT_GO is 1):
                 0: left button is generated by the on-pad command
                 1: left button is generated by the external button
         Bit3 => 1
@@ -307,6 +313,110 @@ Sample sequence of Multi-finger, Multi-coordinate mode:
 	abs pkt 2, ..., notify packet (valid bit == 0)
 
 ==============================================================================
+* Absolute position for STL3888-Cx and STL3888-Dx.
+==============================================================================
+Single Finger, Absolute Coordinate Mode (SFAC)
+   Bit 7 6 5 4 3 2 1 0       7 6 5 4 3 2 1 0      7 6 5 4 3 2 1 0      7 6 5 4 3 2 1 0
+BYTE  |---------------|BYTE |---------------|BYTE|---------------|BYTE|---------------|
+  1   |0|1|0|P|1|M|R|L|  2  |X|X|X|X|X|X|X|X|  3 |Y|Y|Y|Y|Y|Y|Y|Y|  4 |r|l|B|F|X|X|Y|Y|
+      |---------------|     |---------------|    |---------------|    |---------------|
+
+Byte 1: Bit7~Bit6 => 00, Normal data packet
+                  => 01, Absolute coordinates packet
+                  => 10, Notify packet
+	Bit5 => Coordinate mode(always 0 in SFAC mode):
+		0: single-finger absolute coordinates (SFAC) mode
+		1: multi-finger, multiple coordinates (MFMC) mode
+	Bit4 => 0: The LEFT button is generated by on-pad command (OPC)
+		1: The LEFT button is generated by external button
+		Default is 1 even if the LEFT button is not pressed.
+	Bit3 => Always 1, as specified by PS/2 protocol.
+	Bit2 => Middle Button, 1 is pressed, 0 is not pressed.
+	Bit1 => Right Button, 1 is pressed, 0 is not pressed.
+	Bit0 => Left Button, 1 is pressed, 0 is not pressed.
+Byte 2: X coordinate (xpos[9:2])
+Byte 3: Y coordinate (ypos[9:2])
+Byte 4: Bit1~Bit0 => Y coordinate (xpos[1:0])
+	Bit3~Bit2 => X coordinate (ypos[1:0])
+	Bit4 => 4th mouse button(forward one page)
+	Bit5 => 5th mouse button(backward one page)
+	Bit6 => scroll left button
+	Bit7 => scroll right button
+
+Multi Finger, Multiple Coordinates Mode (MFMC):
+   Bit 7 6 5 4 3 2 1 0       7 6 5 4 3 2 1 0      7 6 5 4 3 2 1 0      7 6 5 4 3 2 1 0
+BYTE  |---------------|BYTE |---------------|BYTE|---------------|BYTE|---------------|
+  1   |0|1|1|P|1|F|R|L|  2  |X|X|X|X|X|X|X|X|  3 |Y|Y|Y|Y|Y|Y|Y|Y|  4 |r|l|B|F|X|X|Y|Y|
+      |---------------|     |---------------|    |---------------|    |---------------|
+
+Byte 1: Bit7~Bit6 => 00, Normal data packet
+                  => 01, Absolute coordination packet
+                  => 10, Notify packet
+	Bit5 => Coordinate mode (always 1 in MFMC mode):
+		0: single-finger absolute coordinates (SFAC) mode
+		1: multi-finger, multiple coordinates (MFMC) mode
+	Bit4 => 0: The LEFT button is generated by on-pad command (OPC)
+		1: The LEFT button is generated by external button
+		Default is 1 even if the LEFT button is not pressed.
+	Bit3 => Always 1, as specified by PS/2 protocol.
+	Bit2 => Finger index, 0 is the first finger, 1 is the second finger.
+		If bit 1 and 0 are all 1 and bit 4 is 0, the middle external
+		button is pressed.
+	Bit1 => Right Button, 1 is pressed, 0 is not pressed.
+	Bit0 => Left Button, 1 is pressed, 0 is not pressed.
+Byte 2: X coordinate (xpos[9:2])
+Byte 3: Y coordinate (ypos[9:2])
+Byte 4: Bit1~Bit0 => Y coordinate (xpos[1:0])
+	Bit3~Bit2 => X coordinate (ypos[1:0])
+	Bit4 => 4th mouse button(forward one page)
+	Bit5 => 5th mouse button(backward one page)
+	Bit6 => scroll left button
+	Bit7 => scroll right button
+
+  When one of the two fingers is up, the device will output four consecutive
+MFMC#0 report packets with zero X and Y to represent 1st finger is up or
+four consecutive MFMC#1 report packets with zero X and Y to represent that
+the 2nd finger is up.  On the other hand, if both fingers are up, the device
+will output four consecutive single-finger, absolute coordinate(SFAC) packets
+with zero X and Y.
+
+Notify Packet for STL3888-Cx/Dx
+   Bit 7 6 5 4 3 2 1 0       7 6 5 4 3 2 1 0      7 6 5 4 3 2 1 0      7 6 5 4 3 2 1 0
+BYTE  |---------------|BYTE |---------------|BYTE|---------------|BYTE|---------------|
+  1   |1|0|0|P|1|M|R|L|  2  |C|C|C|C|C|C|C|C|  3 |0|0|F|F|0|0|0|i|  4 |r|l|u|d|0|0|0|0|
+      |---------------|     |---------------|    |---------------|    |---------------|
+
+Byte 1: Bit7~Bit6 => 00, Normal data packet
+                  => 01, Absolute coordinates packet
+                  => 10, Notify packet
+	Bit5 => Always 0
+	Bit4 => 0: The LEFT button is generated by on-pad command(OPC)
+		1: The LEFT button is generated by external button
+		Default is 1 even if the LEFT button is not pressed.
+	Bit3 => 1
+	Bit2 => Middle Button, 1 is pressed, 0 is not pressed.
+	Bit1 => Right Button, 1 is pressed, 0 is not pressed.
+	Bit0 => Left Button, 1 is pressed, 0 is not pressed.
+Byte 2: Message type:
+	0xba => gesture information
+	0xc0 => one finger hold-rotating gesture
+Byte 3: The first parameter for the received message:
+	0xba => gesture ID (refer to the 'Gesture ID' section)
+	0xc0 => region ID
+Byte 4: The second parameter for the received message:
+	0xba => N/A
+	0xc0 => finger up/down information
+
+Sample sequence of Multi-finger, Multi-coordinates mode:
+
+	notify packet (valid bit == 1), MFMC packet 1 (byte 1, bit 2 == 0),
+	MFMC packet 2 (byte 1, bit 2 == 1), MFMC packet 1, MFMC packet 2,
+	..., notify packet (valid bit == 0)
+
+	That is, when the device is in MFMC mode, the host will receive
+	interleaved absolute coordinate packets for each finger.
+
+==============================================================================
 * FSP Enable/Disable packet
 ==============================================================================
    Bit 7 6 5 4 3 2 1 0       7 6 5 4 3 2 1 0      7 6 5 4 3 2 1 0      7 6 5 4 3 2 1 0
@@ -348,9 +458,10 @@ http://www.computer-engineering.org/ps2mouse/
 ==============================================================================
 1. Identify FSP by reading device ID(0x00) and version(0x01) register
 
-2. Determine number of buttons by reading status2 (0x0b) register
+2a. For FSP version < STL3888 Cx, determine number of buttons by reading
+    the 'test mode status' (0x20) register:
 
-	buttons = reg[0x0b] & 0x30
+	buttons = reg[0x20] & 0x30
 
 	if buttons == 0x30 or buttons == 0x20:
 		# two/four buttons
@@ -365,6 +476,10 @@ http://www.computer-engineering.org/ps2mouse/
 		Refer to 'Finger Sensing Pad PS/2 Mouse Intellimouse'
 		section A for packet parsing detail
 
+2b. For FSP version >= STL3888 Cx:
+	Refer to 'Finger Sensing Pad PS/2 Mouse Intellimouse'
+	section A for packet parsing detail (ignore byte 4, bit ~ 7)
+
 ==============================================================================
 * Programming Sequence for Register Reading/Writing
 ==============================================================================
@@ -374,7 +489,7 @@ Register inversion requirement:
   Following values needed to be inverted(the '~' operator in C) before being
 sent to FSP:
 
-	0xe9, 0xee, 0xf2 and 0xff.
+	0xe8, 0xe9, 0xee, 0xf2, 0xf3 and 0xff.
 
 Register swapping requirement:
 
@@ -415,7 +530,18 @@ Register reading sequence:
 
 	8. send 0xe9(status request) PS/2 command to FSP;
 
-	9. the response read from FSP should be the requested register value.
+	9. the 4th byte of the response read from FSP should be the
+	requested register value(?? indicates don't care byte):
+
+		host: 0xe9
+		3888: 0xfa (??) (??) (val)
+
+	* Note that since the Cx release, the hardware will return 1's
+	complement of the register value at the 3rd byte of status request
+	result:
+
+		host: 0xe9
+		3888: 0xfa (??) (~val) (val)
 
 Register writing sequence:
 
@@ -465,71 +591,194 @@ Register writing sequence:
 
 	9. the register writing sequence is completed.
 
+	* Note that since the Cx release, the hardware will return 1's
+	complement of the register value at the 3rd byte of status request
+	result. Host can optionally send another 0xe9 (status request) PS/2
+	command to FSP at the end of register writing to verify that the
+	register writing operation is successful (?? indicates don't care
+	byte):
+
+		host: 0xe9
+		3888: 0xfa (??) (~val) (val)
+
+==============================================================================
+* Programming Sequence for Page Register Reading/Writing
+==============================================================================
+
+  In order to overcome the limitation of maximum number of registers
+supported, the hardware separates register into different groups called
+'pages.' Each page is able to include up to 255 registers.
+
+  The default page after power up is 0x82; therefore, if one has to get
+access to register 0x8301, one has to use following sequence to switch
+to page 0x83, then start reading/writing from/to offset 0x01 by using
+the register read/write sequence described in previous section.
+
+Page register reading sequence:
+
+	1. send 0xf3 PS/2 command to FSP;
+
+	2. send 0x66 PS/2 command to FSP;
+
+	3. send 0x88 PS/2 command to FSP;
+
+	4. send 0xf3 PS/2 command to FSP;
+
+	5. send 0x83 PS/2 command to FSP;
+
+	6. send 0x88 PS/2 command to FSP;
+
+	7. send 0xe9(status request) PS/2 command to FSP;
+
+	8. the response read from FSP should be the requested page value.
+
+Page register writing sequence:
+
+	1. send 0xf3 PS/2 command to FSP;
+
+	2. send 0x38 PS/2 command to FSP;
+
+	3. send 0x88 PS/2 command to FSP;
+
+	4. send 0xf3 PS/2 command to FSP;
+
+	5. if the page address being written is not required to be
+	inverted(refer to the 'Register inversion requirement' section),
+	goto step 6
+
+	5a. send 0x47 PS/2 command to FSP;
+
+	5b. send the inverted page address to FSP and goto step 9;
+
+	6. if the page address being written is not required to be
+	swapped(refer to the 'Register swapping requirement' section),
+	goto step 7
+
+	6a. send 0x44 PS/2 command to FSP;
+
+	6b. send the swapped page address to FSP and goto step 9;
+
+	7. send 0x33 PS/2 command to FSP;
+
+	8. send the page address to FSP;
+
+	9. the page register writing sequence is completed.
+
+==============================================================================
+* Gesture ID
+==============================================================================
+
+  Unlike other devices which sends multiple fingers' coordinates to host,
+FSP processes multiple fingers' coordinates internally and convert them
+into a 8 bits integer, namely 'Gesture ID.'  Following is a list of
+supported gesture IDs:
+
+	ID	Description
+	0x86	2 finger straight up
+	0x82	2 finger straight down
+	0x80	2 finger straight right
+	0x84	2 finger straight left
+	0x8f	2 finger zoom in
+	0x8b	2 finger zoom out
+	0xc0	2 finger curve, counter clockwise
+	0xc4	2 finger curve, clockwise
+	0x2e	3 finger straight up
+	0x2a	3 finger straight down
+	0x28	3 finger straight right
+	0x2c	3 finger straight left
+	0x38	palm
+
 ==============================================================================
 * Register Listing
 ==============================================================================
 
+  Registers are represented in 16 bits values. The higher 8 bits represent
+the page address and the lower 8 bits represent the relative offset within
+that particular page.  Refer to the 'Programming Sequence for Page Register
+Reading/Writing' section for instructions on how to change current page
+address.
+
 offset	width		default	r/w	name
-0x00	bit7~bit0	0x01	RO	device ID
+0x8200	bit7~bit0	0x01	RO	device ID
 
-0x01	bit7~bit0	0xc0	RW	version ID
+0x8201	bit7~bit0		RW	version ID
+					0xc1: STL3888 Ax
+					0xd0 ~ 0xd2: STL3888 Bx
+					0xe0 ~ 0xe1: STL3888 Cx
+					0xe2 ~ 0xe3: STL3888 Dx
 
-0x02	bit7~bit0	0x01	RO	vendor ID
+0x8202	bit7~bit0	0x01	RO	vendor ID
 
-0x03	bit7~bit0	0x01	RO	product ID
+0x8203	bit7~bit0	0x01	RO	product ID
 
-0x04	bit3~bit0	0x01	RW	revision ID
+0x8204	bit3~bit0	0x01	RW	revision ID
 
-0x0b				RO	test mode status 1
-	bit3		1	RO	0: rotate 180 degree, 1: no rotation
+0x820b					test mode status 1
+	bit3		1	RO	0: rotate 180 degree
+					1: no rotation
+					*only supported by H/W prior to Cx
 
-	bit5~bit4		RO	number of buttons
-			11 => 2, lbtn/rbtn
-			10 => 4, lbtn/rbtn/scru/scrd
-			01 => 6, lbtn/rbtn/scru/scrd/scrl/scrr
-			00 => 6, lbtn/rbtn/scru/scrd/fbtn/bbtn
+0x820f					register file page control
+	bit2		0	RW	1: rotate 180 degree
+					0: no rotation
+					*supported since Cx
 
-0x0f				RW	register file page control
 	bit0		0	RW	1 to enable page 1 register files
+					*only supported by H/W prior to Cx
 
-0x10				RW	system control 1
+0x8210				RW	system control 1
 	bit0		1	RW	Reserved, must be 1
 	bit1		0	RW	Reserved, must be 0
-	bit4		1	RW	Reserved, must be 0
-	bit5		0	RW	register clock gating enable
+	bit4		0	RW	Reserved, must be 0
+	bit5		1	RW	register clock gating enable
 					0: read only, 1: read/write enable
 	(Note that following registers does not require clock gating being
 	enabled prior to write: 05 06 07 08 09 0c 0f 10 11 12 16 17 18 23 2e
 	40 41 42 43.  In addition to that, this bit must be 1 when gesture
 	mode is enabled)
 
-0x31				RW	on-pad command detection
+0x8220					test mode status
+	bit5~bit4		RO	number of buttons
+					11 => 2, lbtn/rbtn
+					10 => 4, lbtn/rbtn/scru/scrd
+					01 => 6, lbtn/rbtn/scru/scrd/scrl/scrr
+					00 => 6, lbtn/rbtn/scru/scrd/fbtn/bbtn
+					*only supported by H/W prior to Cx
+
+0x8231				RW	on-pad command detection
 	bit7		0	RW	on-pad command left button down tag
 					enable
 					0: disable, 1: enable
+					*only supported by H/W prior to Cx
 
-0x34				RW	on-pad command control 5
+0x8234				RW	on-pad command control 5
 	bit4~bit0	0x05	RW	XLO in 0s/4/1, so 03h = 0010.1b = 2.5
 	(Note that position unit is in 0.5 scanline)
+					*only supported by H/W prior to Cx
 
 	bit7		0	RW	on-pad tap zone enable
 					0: disable, 1: enable
+					*only supported by H/W prior to Cx
 
-0x35				RW	on-pad command control 6
+0x8235				RW	on-pad command control 6
 	bit4~bit0	0x1d	RW	XHI in 0s/4/1, so 19h = 1100.1b = 12.5
 	(Note that position unit is in 0.5 scanline)
+					*only supported by H/W prior to Cx
 
-0x36				RW	on-pad command control 7
+0x8236				RW	on-pad command control 7
 	bit4~bit0	0x04	RW	YLO in 0s/4/1, so 03h = 0010.1b = 2.5
 	(Note that position unit is in 0.5 scanline)
+					*only supported by H/W prior to Cx
 
-0x37				RW	on-pad command control 8
+0x8237				RW	on-pad command control 8
 	bit4~bit0	0x13	RW	YHI in 0s/4/1, so 11h = 1000.1b = 8.5
 	(Note that position unit is in 0.5 scanline)
+					*only supported by H/W prior to Cx
 
-0x40				RW	system control 5
+0x8240				RW	system control 5
 	bit1		0	RW	FSP Intellimouse mode enable
 					0: disable, 1: enable
+					*only supported by H/W prior to Cx
 
 	bit2		0	RW	movement + abs. coordinate mode enable
 					0: disable, 1: enable
@@ -537,6 +786,7 @@ offset	width		default	r/w	name
 	bit 1 is not set. However, the format is different from that of bit 1.
 	In addition, when bit 1 and bit 2 are set at the same time, bit 2 will
 	override bit 1.)
+					*only supported by H/W prior to Cx
 
 	bit3		0	RW	abs. coordinate only mode enable
 					0: disable, 1: enable
@@ -544,9 +794,11 @@ offset	width		default	r/w	name
 	bit 1 is not set. However, the format is different from that of bit 1.
 	In addition, when bit 1, bit 2 and bit 3 are set at the same time,
 	bit 3 will override bit 1 and 2.)
+					*only supported by H/W prior to Cx
 
 	bit5		0	RW	auto switch enable
 					0: disable, 1: enable
+					*only supported by H/W prior to Cx
 
 	bit6		0	RW	G0 abs. + notify packet format enable
 					0: disable, 1: enable
@@ -554,18 +806,68 @@ offset	width		default	r/w	name
 	bit 2 and 3.  That is, if any of those bit is 1, host will receive
 	absolute coordinates; otherwise, host only receives packets with
 	relative coordinate.)
+					*only supported by H/W prior to Cx
 
 	bit7		0	RW	EN_PS2_F2: PS/2 gesture mode 2nd
 					finger packet enable
 					0: disable, 1: enable
+					*only supported by H/W prior to Cx
 
-0x43				RW	on-pad control
+0x8243				RW	on-pad control
 	bit0		0	RW	on-pad control enable
 					0: disable, 1: enable
 	(Note that if this bit is cleared, bit 3/5 will be ineffective)
+					*only supported by H/W prior to Cx
 
 	bit3		0	RW	on-pad fix vertical scrolling enable
 					0: disable, 1: enable
+					*only supported by H/W prior to Cx
 
 	bit5		0	RW	on-pad fix horizontal scrolling enable
 					0: disable, 1: enable
+					*only supported by H/W prior to Cx
+
+0x8290				RW	software control register 1
+	bit0		0	RW	absolute coordination mode
+					0: disable, 1: enable
+					*supported since Cx
+
+	bit1		0	RW	gesture ID output
+					0: disable, 1: enable
+					*supported since Cx
+
+	bit2		0	RW	two fingers' coordinates output
+					0: disable, 1: enable
+					*supported since Cx
+
+	bit3		0	RW	finger up one packet output
+					0: disable, 1: enable
+					*supported since Cx
+
+	bit4		0	RW	absolute coordination continuous mode
+					0: disable, 1: enable
+					*supported since Cx
+
+	bit6~bit5	00	RW	gesture group selection
+					00: basic
+					01: suite
+					10: suite pro
+					11: advanced
+					*supported since Cx
+
+	bit7		0	RW	Bx packet output compatible mode
+					0: disable, 1: enable					*supported since Cx
+					*supported since Cx
+
+
+0x833d				RW	on-pad command control 1
+	bit7		1	RW	on-pad command detection enable
+					0: disable, 1: enable
+					*supported since Cx
+
+0x833e				RW	on-pad command detection
+	bit7		0	RW	on-pad command left button down tag
+					enable. Works only in H/W based PS/2
+					data packet mode.
+					0: disable, 1: enable
+					*supported since Cx
diff --git a/Documentation/kdump/kdump.txt b/Documentation/kdump/kdump.txt
index 7a9e0b4b2903..506c7390c2b9 100644
--- a/Documentation/kdump/kdump.txt
+++ b/Documentation/kdump/kdump.txt
@@ -17,8 +17,8 @@ You can use common commands, such as cp and scp, to copy the
 memory image to a dump file on the local disk, or across the network to
 a remote system.
 
-Kdump and kexec are currently supported on the x86, x86_64, ppc64 and ia64
-architectures.
+Kdump and kexec are currently supported on the x86, x86_64, ppc64, ia64,
+and s390x architectures.
 
 When the system kernel boots, it reserves a small section of memory for
 the dump-capture kernel. This ensures that ongoing Direct Memory Access
@@ -34,11 +34,18 @@ Similarly on PPC64 machines first 32KB of physical memory is needed for
 booting regardless of where the kernel is loaded and to support 64K page
 size kexec backs up the first 64KB memory.
 
+For s390x, when kdump is triggered, the crashkernel region is exchanged
+with the region [0, crashkernel region size] and then the kdump kernel
+runs in [0, crashkernel region size]. Therefore no relocatable kernel is
+needed for s390x.
+
 All of the necessary information about the system kernel's core image is
 encoded in the ELF format, and stored in a reserved area of memory
 before a crash. The physical address of the start of the ELF header is
 passed to the dump-capture kernel through the elfcorehdr= boot
-parameter.
+parameter. Optionally the size of the ELF header can also be passed
+when using the elfcorehdr=[size[KMG]@]offset[KMG] syntax.
+
 
 With the dump-capture kernel, you can access the memory image, or "old
 memory," in two ways:
@@ -291,6 +298,10 @@ Boot into System Kernel
    The region may be automatically placed on ia64, see the
    dump-capture kernel config option notes above.
 
+   On s390x, typically use "crashkernel=xxM". The value of xx is dependent
+   on the memory consumption of the kdump system. In general this is not
+   dependent on the memory size of the production system.
+
 Load the Dump-capture Kernel
 ============================
 
@@ -308,6 +319,8 @@ For ppc64:
 	- Use vmlinux
 For ia64:
 	- Use vmlinux or vmlinuz.gz
+For s390x:
+	- Use image or bzImage
 
 
 If you are using a uncompressed vmlinux image then use following command
@@ -337,6 +350,8 @@ For i386, x86_64 and ia64:
 For ppc64:
 	"1 maxcpus=1 noirqdistrib reset_devices"
 
+For s390x:
+	"1 maxcpus=1 cgroup_disable=memory"
 
 Notes on loading the dump-capture kernel:
 
@@ -362,6 +377,20 @@ Notes on loading the dump-capture kernel:
   dump. Hence generally it is useful either to build a UP dump-capture
   kernel or specify maxcpus=1 option while loading dump-capture kernel.
 
+* For s390x there are two kdump modes: If a ELF header is specified with
+  the elfcorehdr= kernel parameter, it is used by the kdump kernel as it
+  is done on all other architectures. If no elfcorehdr= kernel parameter is
+  specified, the s390x kdump kernel dynamically creates the header. The
+  second mode has the advantage that for CPU and memory hotplug, kdump has
+  not to be reloaded with kexec_load().
+
+* For s390x systems with many attached devices the "cio_ignore" kernel
+  parameter should be used for the kdump kernel in order to prevent allocation
+  of kernel memory for devices that are not relevant for kdump. The same
+  applies to systems that use SCSI/FCP devices. In that case the
+  "allow_lun_scan" zfcp module parameter should be set to zero before
+  setting FCP devices online.
+
 Kernel Panic
 ============
 
diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index e229769606f2..c92b1532f05a 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -329,6 +329,11 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 				    is a lot of faster
 			off	  - do not initialize any AMD IOMMU found in
 				    the system
+			force_isolation - Force device isolation for all
+					  devices. The IOMMU driver is not
+					  allowed anymore to lift isolation
+					  requirements as needed. This option
+					  does not override iommu=pt
 
 	amijoy.map=	[HW,JOY] Amiga joystick support
 			Map of devices attached to JOY0DAT and JOY1DAT
@@ -623,6 +628,25 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 	no_debug_objects
 			[KNL] Disable object debugging
 
+	debug_guardpage_minorder=
+			[KNL] When CONFIG_DEBUG_PAGEALLOC is set, this
+			parameter allows control of the order of pages that will
+			be intentionally kept free (and hence protected) by the
+			buddy allocator. Bigger value increase the probability
+			of catching random memory corruption, but reduce the
+			amount of memory for normal system use. The maximum
+			possible value is MAX_ORDER/2.  Setting this parameter
+			to 1 or 2 should be enough to identify most random
+			memory corruption problems caused by bugs in kernel or
+			driver code when a CPU writes to (or reads from) a
+			random memory location. Note that there exists a class
+			of memory corruptions problems caused by buggy H/W or
+			F/W or by drivers badly programing DMA (basically when
+			memory is written at bus level and the CPU MMU is
+			bypassed) which are not detectable by
+			CONFIG_DEBUG_PAGEALLOC, hence this option will not help
+			tracking down these problems.
+
 	debugpat	[X86] Enable PAT debugging
 
 	decnet.addr=	[HW,NET]
@@ -1059,7 +1083,9 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 		nomerge
 		forcesac
 		soft
-		pt	[x86, IA-64]
+		pt		[x86, IA-64]
+		group_mf	[x86, IA-64]
+
 
 	io7=		[HW] IO7 for Marvel based alpha systems
 			See comment before marvel_specify_io7 in
@@ -1178,9 +1204,6 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 	kvm.ignore_msrs=[KVM] Ignore guest accesses to unhandled MSRs.
 			Default is 0 (don't ignore, but inject #GP)
 
-	kvm.oos_shadow=	[KVM] Disable out-of-sync shadow paging.
-			Default is 1 (enabled)
-
 	kvm.mmu_audit=	[KVM] This is a R/W parameter which allows audit
 			KVM MMU at runtime.
 			Default is 0 (off)
@@ -1630,12 +1653,17 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 			The default is to return 64-bit inode numbers.
 
 	nfs.nfs4_disable_idmapping=
-			[NFSv4] When set, this option disables the NFSv4
-			idmapper on the client, but only if the mount
-			is using the 'sec=sys' security flavour. This may
-			make migration from legacy NFSv2/v3 systems easier
-			provided that the server has the appropriate support.
-			The default is to always enable NFSv4 idmapping.
+			[NFSv4] When set to the default of '1', this option
+			ensures that both the RPC level authentication
+			scheme and the NFS level operations agree to use
+			numeric uids/gids if the mount is using the
+			'sec=sys' security flavour. In effect it is
+			disabling idmapping, which can make migration from
+			legacy NFSv2/v3 systems to NFSv4 easier.
+			Servers that do not support this mode of operation
+			will be autodetected by the client, and it will fall
+			back to using the idmapper.
+			To turn off this behaviour, set the value to '0'.
 
 	nmi_debug=	[KNL,AVR32,SH] Specify one or more actions to take
 			when a NMI is triggered.
@@ -2637,6 +2665,10 @@ bytes respectively. Such letter suffixes can also be entirely omitted.
 			[USB] Start with the old device initialization
 			scheme (default 0 = off).
 
+	usbcore.usbfs_memory_mb=
+			[USB] Memory limit (in MB) for buffers allocated by
+			usbfs (default = 16, 0 = max = 2047).
+
 	usbcore.use_both_schemes=
 			[USB] Try the other device initialization scheme
 			if the first one fails (default 1 = enabled).
diff --git a/Documentation/pinctrl.txt b/Documentation/pinctrl.txt
index b04cb7d45a16..6727b92bc2fb 100644
--- a/Documentation/pinctrl.txt
+++ b/Documentation/pinctrl.txt
@@ -7,12 +7,9 @@ This subsystem deals with:
 
 - Multiplexing of pins, pads, fingers (etc) see below for details
 
-The intention is to also deal with:
-
-- Software-controlled biasing and driving mode specific pins, such as
-  pull-up/down, open drain etc, load capacitance configuration when controlled
-  by software, etc.
-
+- Configuration of pins, pads, fingers (etc), such as software-controlled
+  biasing and driving mode specific pins, such as pull-up/down, open drain,
+  load capacitance etc.
 
 Top-level interface
 ===================
@@ -32,7 +29,7 @@ Definition of PIN:
   be sparse - i.e. there may be gaps in the space with numbers where no
   pin exists.
 
-When a PIN CONTROLLER is instatiated, it will register a descriptor to the
+When a PIN CONTROLLER is instantiated, it will register a descriptor to the
 pin control framework, and this descriptor contains an array of pin descriptors
 describing the pins handled by this specific pin controller.
 
@@ -61,14 +58,14 @@ this in our driver:
 
 #include <linux/pinctrl/pinctrl.h>
 
-const struct pinctrl_pin_desc __refdata foo_pins[] = {
-      PINCTRL_PIN(0, "A1"),
-      PINCTRL_PIN(1, "A2"),
-      PINCTRL_PIN(2, "A3"),
+const struct pinctrl_pin_desc foo_pins[] = {
+      PINCTRL_PIN(0, "A8"),
+      PINCTRL_PIN(1, "B8"),
+      PINCTRL_PIN(2, "C8"),
       ...
-      PINCTRL_PIN(61, "H6"),
-      PINCTRL_PIN(62, "H7"),
-      PINCTRL_PIN(63, "H8"),
+      PINCTRL_PIN(61, "F1"),
+      PINCTRL_PIN(62, "G1"),
+      PINCTRL_PIN(63, "H1"),
 };
 
 static struct pinctrl_desc foo_desc = {
@@ -88,11 +85,16 @@ int __init foo_probe(void)
 		pr_err("could not register foo pin driver\n");
 }
 
+To enable the pinctrl subsystem and the subgroups for PINMUX and PINCONF and
+selected drivers, you need to select them from your machine's Kconfig entry,
+since these are so tightly integrated with the machines they are used on.
+See for example arch/arm/mach-u300/Kconfig for an example.
+
 Pins usually have fancier names than this. You can find these in the dataheet
 for your chip. Notice that the core pinctrl.h file provides a fancy macro
 called PINCTRL_PIN() to create the struct entries. As you can see I enumerated
-the pins from 0 in the upper left corner to 63 in the lower right corner,
-this enumeration was arbitrarily chosen, in practice you need to think
+the pins from 0 in the upper left corner to 63 in the lower right corner.
+This enumeration was arbitrarily chosen, in practice you need to think
 through your numbering system so that it matches the layout of registers
 and such things in your driver, or the code may become complicated. You must
 also consider matching of offsets to the GPIO ranges that may be handled by
@@ -133,8 +135,8 @@ struct foo_group {
 	const unsigned num_pins;
 };
 
-static unsigned int spi0_pins[] = { 0, 8, 16, 24 };
-static unsigned int i2c0_pins[] = { 24, 25 };
+static const unsigned int spi0_pins[] = { 0, 8, 16, 24 };
+static const unsigned int i2c0_pins[] = { 24, 25 };
 
 static const struct foo_group foo_groups[] = {
 	{
@@ -193,6 +195,88 @@ structure, for example specific register ranges associated with each group
 and so on.
 
 
+Pin configuration
+=================
+
+Pins can sometimes be software-configured in an various ways, mostly related
+to their electronic properties when used as inputs or outputs. For example you
+may be able to make an output pin high impedance, or "tristate" meaning it is
+effectively disconnected. You may be able to connect an input pin to VDD or GND
+using a certain resistor value - pull up and pull down - so that the pin has a
+stable value when nothing is driving the rail it is connected to, or when it's
+unconnected.
+
+For example, a platform may do this:
+
+ret = pin_config_set("foo-dev", "FOO_GPIO_PIN", PLATFORM_X_PULL_UP);
+
+To pull up a pin to VDD. The pin configuration driver implements callbacks for
+changing pin configuration in the pin controller ops like this:
+
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/pinctrl/pinconf.h>
+#include "platform_x_pindefs.h"
+
+static int foo_pin_config_get(struct pinctrl_dev *pctldev,
+		    unsigned offset,
+		    unsigned long *config)
+{
+	struct my_conftype conf;
+
+	... Find setting for pin @ offset ...
+
+	*config = (unsigned long) conf;
+}
+
+static int foo_pin_config_set(struct pinctrl_dev *pctldev,
+		    unsigned offset,
+		    unsigned long config)
+{
+	struct my_conftype *conf = (struct my_conftype *) config;
+
+	switch (conf) {
+		case PLATFORM_X_PULL_UP:
+		...
+		}
+	}
+}
+
+static int foo_pin_config_group_get (struct pinctrl_dev *pctldev,
+		    unsigned selector,
+		    unsigned long *config)
+{
+	...
+}
+
+static int foo_pin_config_group_set (struct pinctrl_dev *pctldev,
+		    unsigned selector,
+		    unsigned long config)
+{
+	...
+}
+
+static struct pinconf_ops foo_pconf_ops = {
+	.pin_config_get = foo_pin_config_get,
+	.pin_config_set = foo_pin_config_set,
+	.pin_config_group_get = foo_pin_config_group_get,
+	.pin_config_group_set = foo_pin_config_group_set,
+};
+
+/* Pin config operations are handled by some pin controller */
+static struct pinctrl_desc foo_desc = {
+	...
+	.confops = &foo_pconf_ops,
+};
+
+Since some controllers have special logic for handling entire groups of pins
+they can exploit the special whole-group pin control function. The
+pin_config_group_set() callback is allowed to return the error code -EAGAIN,
+for groups it does not want to handle, or if it just wants to do some
+group-level handling and then fall through to iterate over all pins, in which
+case each individual pin will be treated by separate pin_config_set() calls as
+well.
+
+
 Interaction with the GPIO subsystem
 ===================================
 
@@ -214,19 +298,20 @@ static struct pinctrl_gpio_range gpio_range_a = {
 	.name = "chip a",
 	.id = 0,
 	.base = 32,
+	.pin_base = 32,
 	.npins = 16,
 	.gc = &chip_a;
 };
 
-static struct pinctrl_gpio_range gpio_range_a = {
+static struct pinctrl_gpio_range gpio_range_b = {
 	.name = "chip b",
 	.id = 0,
 	.base = 48,
+	.pin_base = 64,
 	.npins = 8,
 	.gc = &chip_b;
 };
 
-
 {
 	struct pinctrl_dev *pctl;
 	...
@@ -235,42 +320,39 @@ static struct pinctrl_gpio_range gpio_range_a = {
 }
 
 So this complex system has one pin controller handling two different
-GPIO chips. Chip a has 16 pins and chip b has 8 pins. They are mapped in
-the global GPIO pin space at:
+GPIO chips. "chip a" has 16 pins and "chip b" has 8 pins. The "chip a" and
+"chip b" have different .pin_base, which means a start pin number of the
+GPIO range.
+
+The GPIO range of "chip a" starts from the GPIO base of 32 and actual
+pin range also starts from 32. However "chip b" has different starting
+offset for the GPIO range and pin range. The GPIO range of "chip b" starts
+from GPIO number 48, while the pin range of "chip b" starts from 64.
+
+We can convert a gpio number to actual pin number using this "pin_base".
+They are mapped in the global GPIO pin space at:
 
-chip a: [32 .. 47]
-chip b: [48 .. 55]
+chip a:
+ - GPIO range : [32 .. 47]
+ - pin range  : [32 .. 47]
+chip b:
+ - GPIO range : [48 .. 55]
+ - pin range  : [64 .. 71]
 
 When GPIO-specific functions in the pin control subsystem are called, these
-ranges will be used to look up the apropriate pin controller by inspecting
+ranges will be used to look up the appropriate pin controller by inspecting
 and matching the pin to the pin ranges across all controllers. When a
 pin controller handling the matching range is found, GPIO-specific functions
 will be called on that specific pin controller.
 
 For all functionalities dealing with pin biasing, pin muxing etc, the pin
 controller subsystem will subtract the range's .base offset from the passed
-in gpio pin number, and pass that on to the pin control driver, so the driver
-will get an offset into its handled number range. Further it is also passed
+in gpio number, and add the ranges's .pin_base offset to retrive a pin number.
+After that, the subsystem passes it on to the pin control driver, so the driver
+will get an pin number into its handled number range. Further it is also passed
 the range ID value, so that the pin controller knows which range it should
 deal with.
 
-For example: if a user issues pinctrl_gpio_set_foo(50), the pin control
-subsystem will find that the second range on this pin controller matches,
-subtract the base 48 and call the
-pinctrl_driver_gpio_set_foo(pinctrl, range, 2) where the latter function has
-this signature:
-
-int pinctrl_driver_gpio_set_foo(struct pinctrl_dev *pctldev,
-    struct pinctrl_gpio_range *rangeid,
-    unsigned offset);
-
-Now the driver knows that we want to do some GPIO-specific operation on the
-second GPIO range handled by "chip b", at offset 2 in that specific range.
-
-(If the GPIO subsystem is ever refactored to use a local per-GPIO controller
-pin space, this mapping will need to be augmented accordingly.)
-
-
 PINMUX interfaces
 =================
 
@@ -438,7 +520,7 @@ you. Define enumerators only for the pins you can control if that makes sense.
 
 Assumptions:
 
-We assume that the number possible function maps to pin groups is limited by
+We assume that the number of possible function maps to pin groups is limited by
 the hardware. I.e. we assume that there is no system where any function can be
 mapped to any pin, like in a phone exchange. So the available pins groups for
 a certain function will be limited to a few choices (say up to eight or so),
@@ -585,7 +667,7 @@ int foo_list_funcs(struct pinctrl_dev *pctldev, unsigned selector)
 
 const char *foo_get_fname(struct pinctrl_dev *pctldev, unsigned selector)
 {
-	return myfuncs[selector].name;
+	return foo_functions[selector].name;
 }
 
 static int foo_get_groups(struct pinctrl_dev *pctldev, unsigned selector,
@@ -600,16 +682,16 @@ static int foo_get_groups(struct pinctrl_dev *pctldev, unsigned selector,
 int foo_enable(struct pinctrl_dev *pctldev, unsigned selector,
 		unsigned group)
 {
-	u8 regbit = (1 << group);
+	u8 regbit = (1 << selector + group);
 
 	writeb((readb(MUX)|regbit), MUX)
 	return 0;
 }
 
-int foo_disable(struct pinctrl_dev *pctldev, unsigned selector,
+void foo_disable(struct pinctrl_dev *pctldev, unsigned selector,
 		unsigned group)
 {
-	u8 regbit = (1 << group);
+	u8 regbit = (1 << selector + group);
 
 	writeb((readb(MUX) & ~(regbit)), MUX)
 	return 0;
@@ -647,6 +729,17 @@ All the above functions are mandatory to implement for a pinmux driver.
 Pinmux interaction with the GPIO subsystem
 ==========================================
 
+The public pinmux API contains two functions named pinmux_request_gpio()
+and pinmux_free_gpio(). These two functions shall *ONLY* be called from
+gpiolib-based drivers as part of their gpio_request() and
+gpio_free() semantics. Likewise the pinmux_gpio_direction_[input|output]
+shall only be called from within respective gpio_direction_[input|output]
+gpiolib implementation.
+
+NOTE that platforms and individual drivers shall *NOT* request GPIO pins to be
+muxed in. Instead, implement a proper gpiolib driver and have that driver
+request proper muxing for its pins.
+
 The function list could become long, especially if you can convert every
 individual pin into a GPIO pin independent of any other pins, and then try
 the approach to define every pin as a function.
@@ -654,19 +747,24 @@ the approach to define every pin as a function.
 In this case, the function array would become 64 entries for each GPIO
 setting and then the device functions.
 
-For this reason there is an additional function a pinmux driver can implement
-to enable only GPIO on an individual pin: .gpio_request_enable(). The same
-.free() function as for other functions is assumed to be usable also for
-GPIO pins.
+For this reason there are two functions a pinmux driver can implement
+to enable only GPIO on an individual pin: .gpio_request_enable() and
+.gpio_disable_free().
 
 This function will pass in the affected GPIO range identified by the pin
 controller core, so you know which GPIO pins are being affected by the request
 operation.
 
-Alternatively it is fully allowed to use named functions for each GPIO
-pin, the pinmux_request_gpio() will attempt to obtain the function "gpioN"
-where "N" is the global GPIO pin number if no special GPIO-handler is
-registered.
+If your driver needs to have an indication from the framework of whether the
+GPIO pin shall be used for input or output you can implement the
+.gpio_set_direction() function. As described this shall be called from the
+gpiolib driver and the affected GPIO range, pin offset and desired direction
+will be passed along to this function.
+
+Alternatively to using these special functions, it is fully allowed to use
+named functions for each GPIO pin, the pinmux_request_gpio() will attempt to
+obtain the function "gpioN" where "N" is the global GPIO pin number if no
+special GPIO-handler is registered.
 
 
 Pinmux board/machine configuration
@@ -683,19 +781,19 @@ spi on the second function mapping:
 
 #include <linux/pinctrl/machine.h>
 
-static struct pinmux_map pmx_mapping[] = {
+static const struct pinmux_map __initdata pmx_mapping[] = {
 	{
-		.ctrl_dev_name = "pinctrl.0",
+		.ctrl_dev_name = "pinctrl-foo",
 		.function = "spi0",
 		.dev_name = "foo-spi.0",
 	},
 	{
-		.ctrl_dev_name = "pinctrl.0",
+		.ctrl_dev_name = "pinctrl-foo",
 		.function = "i2c0",
 		.dev_name = "foo-i2c.0",
 	},
 	{
-		.ctrl_dev_name = "pinctrl.0",
+		.ctrl_dev_name = "pinctrl-foo",
 		.function = "mmc0",
 		.dev_name = "foo-mmc.0",
 	},
@@ -714,14 +812,14 @@ for example if they are not yet instantiated or cumbersome to obtain.
 
 You register this pinmux mapping to the pinmux subsystem by simply:
 
-       ret = pinmux_register_mappings(&pmx_mapping, ARRAY_SIZE(pmx_mapping));
+       ret = pinmux_register_mappings(pmx_mapping, ARRAY_SIZE(pmx_mapping));
 
 Since the above construct is pretty common there is a helper macro to make
-it even more compact which assumes you want to use pinctrl.0 and position
+it even more compact which assumes you want to use pinctrl-foo and position
 0 for mapping, for example:
 
-static struct pinmux_map pmx_mapping[] = {
-       PINMUX_MAP_PRIMARY("I2CMAP", "i2c0", "foo-i2c.0"),
+static struct pinmux_map __initdata pmx_mapping[] = {
+       PINMUX_MAP("I2CMAP", "pinctrl-foo", "i2c0", "foo-i2c.0"),
 };
 
 
@@ -734,14 +832,14 @@ As it is possible to map a function to different groups of pins an optional
 ...
 {
 	.name = "spi0-pos-A",
-	.ctrl_dev_name = "pinctrl.0",
+	.ctrl_dev_name = "pinctrl-foo",
 	.function = "spi0",
 	.group = "spi0_0_grp",
 	.dev_name = "foo-spi.0",
 },
 {
 	.name = "spi0-pos-B",
-	.ctrl_dev_name = "pinctrl.0",
+	.ctrl_dev_name = "pinctrl-foo",
 	.function = "spi0",
 	.group = "spi0_1_grp",
 	.dev_name = "foo-spi.0",
@@ -760,44 +858,44 @@ case), we define a mapping like this:
 ...
 {
 	.name "2bit"
-	.ctrl_dev_name = "pinctrl.0",
+	.ctrl_dev_name = "pinctrl-foo",
 	.function = "mmc0",
-	.group = "mmc0_0_grp",
+	.group = "mmc0_1_grp",
 	.dev_name = "foo-mmc.0",
 },
 {
 	.name "4bit"
-	.ctrl_dev_name = "pinctrl.0",
+	.ctrl_dev_name = "pinctrl-foo",
 	.function = "mmc0",
-	.group = "mmc0_0_grp",
+	.group = "mmc0_1_grp",
 	.dev_name = "foo-mmc.0",
 },
 {
 	.name "4bit"
-	.ctrl_dev_name = "pinctrl.0",
+	.ctrl_dev_name = "pinctrl-foo",
 	.function = "mmc0",
-	.group = "mmc0_1_grp",
+	.group = "mmc0_2_grp",
 	.dev_name = "foo-mmc.0",
 },
 {
 	.name "8bit"
-	.ctrl_dev_name = "pinctrl.0",
+	.ctrl_dev_name = "pinctrl-foo",
 	.function = "mmc0",
-	.group = "mmc0_0_grp",
+	.group = "mmc0_1_grp",
 	.dev_name = "foo-mmc.0",
 },
 {
 	.name "8bit"
-	.ctrl_dev_name = "pinctrl.0",
+	.ctrl_dev_name = "pinctrl-foo",
 	.function = "mmc0",
-	.group = "mmc0_1_grp",
+	.group = "mmc0_2_grp",
 	.dev_name = "foo-mmc.0",
 },
 {
 	.name "8bit"
-	.ctrl_dev_name = "pinctrl.0",
+	.ctrl_dev_name = "pinctrl-foo",
 	.function = "mmc0",
-	.group = "mmc0_2_grp",
+	.group = "mmc0_3_grp",
 	.dev_name = "foo-mmc.0",
 },
 ...
@@ -898,7 +996,7 @@ like this:
 
 {
 	.name "POWERMAP"
-	.ctrl_dev_name = "pinctrl.0",
+	.ctrl_dev_name = "pinctrl-foo",
 	.function = "power_func",
 	.hog_on_boot = true,
 },
diff --git a/Documentation/power/regulator/regulator.txt b/Documentation/power/regulator/regulator.txt
index 3f8b528f237e..e272d9909e39 100644
--- a/Documentation/power/regulator/regulator.txt
+++ b/Documentation/power/regulator/regulator.txt
@@ -12,7 +12,7 @@ Drivers can register a regulator by calling :-
 
 struct regulator_dev *regulator_register(struct regulator_desc *regulator_desc,
 	struct device *dev, struct regulator_init_data *init_data,
-	void *driver_data);
+	void *driver_data, struct device_node *of_node);
 
 This will register the regulators capabilities and operations to the regulator
 core.
diff --git a/Documentation/s390/Debugging390.txt b/Documentation/s390/Debugging390.txt
index efe998becc5b..462321c1aeea 100644
--- a/Documentation/s390/Debugging390.txt
+++ b/Documentation/s390/Debugging390.txt
@@ -41,7 +41,6 @@ ldd
 Debugging modules
 The proc file system
 Starting points for debugging scripting languages etc.
-Dumptool & Lcrash
 SysRq
 References
 Special Thanks
@@ -2455,39 +2454,6 @@ jdb <filename> another fully interactive gdb style debugger.
 
 
 
-Dumptool & Lcrash ( lkcd )
-==========================
-Michael Holzheu & others here at IBM have a fairly mature port of 
-SGI's lcrash tool which allows one to look at kernel structures in a
-running kernel.
-
-It also complements a tool called dumptool which dumps all the kernel's
-memory pages & registers to either a tape or a disk.
-This can be used by tech support or an ambitious end user do
-post mortem debugging of a machine like gdb core dumps.
-
-Going into how to use this tool in detail will be explained
-in other documentation supplied by IBM with the patches & the 
-lcrash homepage http://oss.sgi.com/projects/lkcd/ & the lcrash manpage.
-
-How they work
--------------
-Lcrash is a perfectly normal program,however, it requires 2 
-additional files, Kerntypes which is built using a patch to the 
-linux kernel sources in the linux root directory & the System.map.
-
-Kerntypes is an objectfile whose sole purpose in life
-is to provide stabs debug info to lcrash, to do this
-Kerntypes is built from kerntypes.c which just includes the most commonly
-referenced header files used when debugging, lcrash can then read the
-.stabs section of this file.
-
-Debugging a live system it uses /dev/mem
-alternatively for post mortem debugging it uses the data 
-collected by dumptool.
-
-
-
 SysRq
 =====
 This is now supported by linux for s/390 & z/Architecture.
diff --git a/Documentation/serial/driver b/Documentation/serial/driver
index 77ba0afbe4db..0a25a9191864 100644
--- a/Documentation/serial/driver
+++ b/Documentation/serial/driver
@@ -101,7 +101,7 @@ hardware.
 	Returns the current state of modem control inputs.  The state
 	of the outputs should not be returned, since the core keeps
 	track of their state.  The state information should include:
-		- TIOCM_DCD	state of DCD signal
+		- TIOCM_CAR	state of DCD signal
 		- TIOCM_CTS	state of CTS signal
 		- TIOCM_DSR	state of DSR signal
 		- TIOCM_RI	state of RI signal
diff --git a/Documentation/trace/events-kmem.txt b/Documentation/trace/events-kmem.txt
index aa82ee4a5a87..194800410061 100644
--- a/Documentation/trace/events-kmem.txt
+++ b/Documentation/trace/events-kmem.txt
@@ -40,8 +40,8 @@ but the call_site can usually be used to extrapolate that information.
 ==================
 mm_page_alloc		  page=%p pfn=%lu order=%d migratetype=%d gfp_flags=%s
 mm_page_alloc_zone_locked page=%p pfn=%lu order=%u migratetype=%d cpu=%d percpu_refill=%d
-mm_page_free_direct	  page=%p pfn=%lu order=%d
-mm_pagevec_free		  page=%p pfn=%lu order=%d cold=%d
+mm_page_free		  page=%p pfn=%lu order=%d
+mm_page_free_batched	  page=%p pfn=%lu order=%d cold=%d
 
 These four events deal with page allocation and freeing. mm_page_alloc is
 a simple indicator of page allocator activity. Pages may be allocated from
@@ -53,13 +53,13 @@ amounts of activity imply high activity on the zone->lock. Taking this lock
 impairs performance by disabling interrupts, dirtying cache lines between
 CPUs and serialising many CPUs.
 
-When a page is freed directly by the caller, the mm_page_free_direct event
+When a page is freed directly by the caller, the only mm_page_free event
 is triggered. Significant amounts of activity here could indicate that the
 callers should be batching their activities.
 
-When pages are freed using a pagevec, the mm_pagevec_free is
-triggered. Broadly speaking, pages are taken off the LRU lock in bulk and
-freed in batch with a pagevec. Significant amounts of activity here could
+When pages are freed in batch, the also mm_page_free_batched is triggered.
+Broadly speaking, pages are taken off the LRU lock in bulk and
+freed in batch with a page list. Significant amounts of activity here could
 indicate that the system is under memory pressure and can also indicate
 contention on the zone->lru_lock.
 
diff --git a/Documentation/trace/postprocess/trace-pagealloc-postprocess.pl b/Documentation/trace/postprocess/trace-pagealloc-postprocess.pl
index 7df50e8cf4d9..0a120aae33ce 100644
--- a/Documentation/trace/postprocess/trace-pagealloc-postprocess.pl
+++ b/Documentation/trace/postprocess/trace-pagealloc-postprocess.pl
@@ -17,8 +17,8 @@ use Getopt::Long;
 
 # Tracepoint events
 use constant MM_PAGE_ALLOC		=> 1;
-use constant MM_PAGE_FREE_DIRECT 	=> 2;
-use constant MM_PAGEVEC_FREE		=> 3;
+use constant MM_PAGE_FREE		=> 2;
+use constant MM_PAGE_FREE_BATCHED	=> 3;
 use constant MM_PAGE_PCPU_DRAIN		=> 4;
 use constant MM_PAGE_ALLOC_ZONE_LOCKED	=> 5;
 use constant MM_PAGE_ALLOC_EXTFRAG	=> 6;
@@ -223,10 +223,10 @@ EVENT_PROCESS:
 		# Perl Switch() sucks majorly
 		if ($tracepoint eq "mm_page_alloc") {
 			$perprocesspid{$process_pid}->{MM_PAGE_ALLOC}++;
-		} elsif ($tracepoint eq "mm_page_free_direct") {
-			$perprocesspid{$process_pid}->{MM_PAGE_FREE_DIRECT}++;
-		} elsif ($tracepoint eq "mm_pagevec_free") {
-			$perprocesspid{$process_pid}->{MM_PAGEVEC_FREE}++;
+		} elsif ($tracepoint eq "mm_page_free") {
+			$perprocesspid{$process_pid}->{MM_PAGE_FREE}++
+		} elsif ($tracepoint eq "mm_page_free_batched") {
+			$perprocesspid{$process_pid}->{MM_PAGE_FREE_BATCHED}++;
 		} elsif ($tracepoint eq "mm_page_pcpu_drain") {
 			$perprocesspid{$process_pid}->{MM_PAGE_PCPU_DRAIN}++;
 			$perprocesspid{$process_pid}->{STATE_PCPU_PAGES_DRAINED}++;
@@ -336,8 +336,8 @@ sub dump_stats {
 			$process_pid,
 			$stats{$process_pid}->{MM_PAGE_ALLOC},
 			$stats{$process_pid}->{MM_PAGE_ALLOC_ZONE_LOCKED},
-			$stats{$process_pid}->{MM_PAGE_FREE_DIRECT},
-			$stats{$process_pid}->{MM_PAGEVEC_FREE},
+			$stats{$process_pid}->{MM_PAGE_FREE},
+			$stats{$process_pid}->{MM_PAGE_FREE_BATCHED},
 			$stats{$process_pid}->{MM_PAGE_PCPU_DRAIN},
 			$stats{$process_pid}->{HIGH_PCPU_DRAINS},
 			$stats{$process_pid}->{HIGH_PCPU_REFILLS},
@@ -364,8 +364,8 @@ sub aggregate_perprocesspid() {
 
 		$perprocess{$process}->{MM_PAGE_ALLOC} += $perprocesspid{$process_pid}->{MM_PAGE_ALLOC};
 		$perprocess{$process}->{MM_PAGE_ALLOC_ZONE_LOCKED} += $perprocesspid{$process_pid}->{MM_PAGE_ALLOC_ZONE_LOCKED};
-		$perprocess{$process}->{MM_PAGE_FREE_DIRECT} += $perprocesspid{$process_pid}->{MM_PAGE_FREE_DIRECT};
-		$perprocess{$process}->{MM_PAGEVEC_FREE} += $perprocesspid{$process_pid}->{MM_PAGEVEC_FREE};
+		$perprocess{$process}->{MM_PAGE_FREE} += $perprocesspid{$process_pid}->{MM_PAGE_FREE};
+		$perprocess{$process}->{MM_PAGE_FREE_BATCHED} += $perprocesspid{$process_pid}->{MM_PAGE_FREE_BATCHED};
 		$perprocess{$process}->{MM_PAGE_PCPU_DRAIN} += $perprocesspid{$process_pid}->{MM_PAGE_PCPU_DRAIN};
 		$perprocess{$process}->{HIGH_PCPU_DRAINS} += $perprocesspid{$process_pid}->{HIGH_PCPU_DRAINS};
 		$perprocess{$process}->{HIGH_PCPU_REFILLS} += $perprocesspid{$process_pid}->{HIGH_PCPU_REFILLS};
diff --git a/Documentation/trace/tracepoint-analysis.txt b/Documentation/trace/tracepoint-analysis.txt
index 87bee3c129ba..058cc6c9dc56 100644
--- a/Documentation/trace/tracepoint-analysis.txt
+++ b/Documentation/trace/tracepoint-analysis.txt
@@ -93,14 +93,14 @@ By specifying the -a switch and analysing sleep, the system-wide events
 for a duration of time can be examined.
 
  $ perf stat -a \
-	-e kmem:mm_page_alloc -e kmem:mm_page_free_direct \
-	-e kmem:mm_pagevec_free \
+	-e kmem:mm_page_alloc -e kmem:mm_page_free \
+	-e kmem:mm_page_free_batched \
 	sleep 10
  Performance counter stats for 'sleep 10':
 
            9630  kmem:mm_page_alloc
-           2143  kmem:mm_page_free_direct
-           7424  kmem:mm_pagevec_free
+           2143  kmem:mm_page_free
+           7424  kmem:mm_page_free_batched
 
    10.002577764  seconds time elapsed
 
@@ -119,15 +119,15 @@ basis using set_ftrace_pid.
 Events can be activated and tracked for the duration of a process on a local
 basis using PCL such as follows.
 
-  $ perf stat -e kmem:mm_page_alloc -e kmem:mm_page_free_direct \
-		 -e kmem:mm_pagevec_free ./hackbench 10
+  $ perf stat -e kmem:mm_page_alloc -e kmem:mm_page_free \
+		 -e kmem:mm_page_free_batched ./hackbench 10
   Time: 0.909
 
     Performance counter stats for './hackbench 10':
 
           17803  kmem:mm_page_alloc
-          12398  kmem:mm_page_free_direct
-           4827  kmem:mm_pagevec_free
+          12398  kmem:mm_page_free
+           4827  kmem:mm_page_free_batched
 
     0.973913387  seconds time elapsed
 
@@ -146,8 +146,8 @@ to know what the standard deviation is. By and large, this is left to the
 performance analyst to do it by hand. In the event that the discrete event
 occurrences are useful to the performance analyst, then perf can be used.
 
-  $ perf stat --repeat 5 -e kmem:mm_page_alloc -e kmem:mm_page_free_direct
-			-e kmem:mm_pagevec_free ./hackbench 10
+  $ perf stat --repeat 5 -e kmem:mm_page_alloc -e kmem:mm_page_free
+			-e kmem:mm_page_free_batched ./hackbench 10
   Time: 0.890
   Time: 0.895
   Time: 0.915
@@ -157,8 +157,8 @@ occurrences are useful to the performance analyst, then perf can be used.
    Performance counter stats for './hackbench 10' (5 runs):
 
           16630  kmem:mm_page_alloc         ( +-   3.542% )
-          11486  kmem:mm_page_free_direct   ( +-   4.771% )
-           4730  kmem:mm_pagevec_free       ( +-   2.325% )
+          11486  kmem:mm_page_free	    ( +-   4.771% )
+           4730  kmem:mm_page_free_batched  ( +-   2.325% )
 
     0.982653002  seconds time elapsed   ( +-   1.448% )
 
@@ -168,15 +168,15 @@ aggregation of discrete events, then a script would need to be developed.
 Using --repeat, it is also possible to view how events are fluctuating over
 time on a system-wide basis using -a and sleep.
 
-  $ perf stat -e kmem:mm_page_alloc -e kmem:mm_page_free_direct \
-		-e kmem:mm_pagevec_free \
+  $ perf stat -e kmem:mm_page_alloc -e kmem:mm_page_free \
+		-e kmem:mm_page_free_batched \
 		-a --repeat 10 \
 		sleep 1
   Performance counter stats for 'sleep 1' (10 runs):
 
            1066  kmem:mm_page_alloc         ( +-  26.148% )
-            182  kmem:mm_page_free_direct   ( +-   5.464% )
-            890  kmem:mm_pagevec_free       ( +-  30.079% )
+            182  kmem:mm_page_free          ( +-   5.464% )
+            890  kmem:mm_page_free_batched  ( +-  30.079% )
 
     1.002251757  seconds time elapsed   ( +-   0.005% )
 
@@ -220,8 +220,8 @@ were generating events within the kernel. To begin this sort of analysis, the
 data must be recorded. At the time of writing, this required root:
 
   $ perf record -c 1 \
-	-e kmem:mm_page_alloc -e kmem:mm_page_free_direct \
-	-e kmem:mm_pagevec_free \
+	-e kmem:mm_page_alloc -e kmem:mm_page_free \
+	-e kmem:mm_page_free_batched \
 	./hackbench 10
   Time: 0.894
   [ perf record: Captured and wrote 0.733 MB perf.data (~32010 samples) ]
@@ -260,8 +260,8 @@ noticed that X was generating an insane amount of page allocations so let's look
 at it:
 
   $ perf record -c 1 -f \
-		-e kmem:mm_page_alloc -e kmem:mm_page_free_direct \
-		-e kmem:mm_pagevec_free \
+		-e kmem:mm_page_alloc -e kmem:mm_page_free \
+		-e kmem:mm_page_free_batched \
 		-p `pidof X`
 
 This was interrupted after a few seconds and
diff --git a/Documentation/usb/usbmon.txt b/Documentation/usb/usbmon.txt
index a4efa0462f05..5335fa8b06eb 100644
--- a/Documentation/usb/usbmon.txt
+++ b/Documentation/usb/usbmon.txt
@@ -47,10 +47,11 @@ This allows to filter away annoying devices that talk continuously.
 
 2. Find which bus connects to the desired device
 
-Run "cat /proc/bus/usb/devices", and find the T-line which corresponds to
-the device. Usually you do it by looking for the vendor string. If you have
-many similar devices, unplug one and compare two /proc/bus/usb/devices outputs.
-The T-line will have a bus number. Example:
+Run "cat /sys/kernel/debug/usb/devices", and find the T-line which corresponds
+to the device. Usually you do it by looking for the vendor string. If you have
+many similar devices, unplug one and compare the two
+/sys/kernel/debug/usb/devices outputs. The T-line will have a bus number.
+Example:
 
 T:  Bus=03 Lev=01 Prnt=01 Port=00 Cnt=01 Dev#=  2 Spd=12  MxCh= 0
 D:  Ver= 1.10 Cls=00(>ifc ) Sub=00 Prot=00 MxPS= 8 #Cfgs=  1
@@ -58,7 +59,10 @@ P:  Vendor=0557 ProdID=2004 Rev= 1.00
 S:  Manufacturer=ATEN
 S:  Product=UC100KM V2.00
 
-Bus=03 means it's bus 3.
+"Bus=03" means it's bus 3. Alternatively, you can look at the output from
+"lsusb" and get the bus number from the appropriate line. Example:
+
+Bus 003 Device 002: ID 0557:2004 ATEN UC100KM V2.00
 
 3. Start 'cat'
 
diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt
index e2a4b5287361..e1d94bf4056e 100644
--- a/Documentation/virtual/kvm/api.txt
+++ b/Documentation/virtual/kvm/api.txt
@@ -1466,6 +1466,31 @@ is supported; 2 if the processor requires all virtual machines to have
 an RMA, or 1 if the processor can use an RMA but doesn't require it,
 because it supports the Virtual RMA (VRMA) facility.
 
+4.64 KVM_NMI
+
+Capability: KVM_CAP_USER_NMI
+Architectures: x86
+Type: vcpu ioctl
+Parameters: none
+Returns: 0 on success, -1 on error
+
+Queues an NMI on the thread's vcpu.  Note this is well defined only
+when KVM_CREATE_IRQCHIP has not been called, since this is an interface
+between the virtual cpu core and virtual local APIC.  After KVM_CREATE_IRQCHIP
+has been called, this interface is completely emulated within the kernel.
+
+To use this to emulate the LINT1 input with KVM_CREATE_IRQCHIP, use the
+following algorithm:
+
+  - pause the vpcu
+  - read the local APIC's state (KVM_GET_LAPIC)
+  - check whether changing LINT1 will queue an NMI (see the LVT entry for LINT1)
+  - if so, issue KVM_NMI
+  - resume the vcpu
+
+Some guests configure the LINT1 NMI input to cause a panic, aiding in
+debugging.
+
 5. The kvm_run structure
 
 Application code obtains a pointer to the kvm_run structure by
diff --git a/Documentation/watchdog/00-INDEX b/Documentation/watchdog/00-INDEX
index fc51128071c2..fc9082a1477a 100644
--- a/Documentation/watchdog/00-INDEX
+++ b/Documentation/watchdog/00-INDEX
@@ -1,5 +1,7 @@
 00-INDEX
 	- this file.
+convert_drivers_to_kernel_api.txt
+	- how-to for converting old watchdog drivers to the new kernel API.
 hpwdt.txt
 	- information on the HP iLO2 NMI watchdog
 pcwd-watchdog.txt
diff --git a/Documentation/watchdog/convert_drivers_to_kernel_api.txt b/Documentation/watchdog/convert_drivers_to_kernel_api.txt
index ae1e90036d06..be8119bb15d2 100644
--- a/Documentation/watchdog/convert_drivers_to_kernel_api.txt
+++ b/Documentation/watchdog/convert_drivers_to_kernel_api.txt
@@ -163,6 +163,25 @@ Here is a simple example for a watchdog device:
 +};
 
 
+Handle the 'nowayout' feature
+-----------------------------
+
+A few drivers use nowayout statically, i.e. there is no module parameter for it
+and only CONFIG_WATCHDOG_NOWAYOUT determines if the feature is going to be
+used. This needs to be converted by initializing the status variable of the
+watchdog_device like this:
+
+        .status = WATCHDOG_NOWAYOUT_INIT_STATUS,
+
+Most drivers, however, also allow runtime configuration of nowayout, usually
+by adding a module parameter. The conversion for this would be something like:
+
+	watchdog_set_nowayout(&s3c2410_wdd, nowayout);
+
+The module parameter itself needs to stay, everything else related to nowayout
+can go, though. This will likely be some code in open(), close() or write().
+
+
 Register the watchdog device
 ----------------------------
 
diff --git a/Documentation/watchdog/watchdog-kernel-api.txt b/Documentation/watchdog/watchdog-kernel-api.txt
index 4f7c894244d2..4b93c28e35c6 100644
--- a/Documentation/watchdog/watchdog-kernel-api.txt
+++ b/Documentation/watchdog/watchdog-kernel-api.txt
@@ -1,6 +1,6 @@
 The Linux WatchDog Timer Driver Core kernel API.
 ===============================================
-Last reviewed: 22-Jul-2011
+Last reviewed: 29-Nov-2011
 
 Wim Van Sebroeck <wim@iguana.be>
 
@@ -142,6 +142,14 @@ bit-operations. The status bits that are defined are:
 * WDOG_NO_WAY_OUT: this bit stores the nowayout setting for the watchdog.
   If this bit is set then the watchdog timer will not be able to stop.
 
+  To set the WDOG_NO_WAY_OUT status bit (before registering your watchdog
+  timer device) you can either:
+  * set it statically in your watchdog_device struct with
+	.status = WATCHDOG_NOWAYOUT_INIT_STATUS,
+    (this will set the value the same as CONFIG_WATCHDOG_NOWAYOUT) or
+  * use the following helper function:
+  static inline void watchdog_set_nowayout(struct watchdog_device *wdd, int nowayout)
+
 Note: The WatchDog Timer Driver Core supports the magic close feature and
 the nowayout feature. To use the magic close feature you must set the
 WDIOF_MAGICCLOSE bit in the options field of the watchdog's info structure.
diff --git a/MAINTAINERS b/MAINTAINERS
index 1e7d90442651..311b0c405572 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -184,11 +184,6 @@ S:	Maintained
 F:	Documentation/filesystems/9p.txt
 F:	fs/9p/
 
-A2232 SERIAL BOARD DRIVER
-L:	linux-m68k@lists.linux-m68k.org
-S:	Orphan
-F:	drivers/staging/generic_serial/ser_a2232*
-
 AACRAID SCSI RAID DRIVER
 M:	Adaptec OEM Raid Solutions <aacraid@adaptec.com>
 L:	linux-scsi@vger.kernel.org
@@ -347,7 +342,7 @@ S:	Supported
 F:	drivers/mfd/adp5520.c
 F:	drivers/video/backlight/adp5520_bl.c
 F:	drivers/leds/leds-adp5520.c
-F:	drivers/gpio/adp5520-gpio.c
+F:	drivers/gpio/gpio-adp5520.c
 F:	drivers/input/keyboard/adp5520-keys.c
 
 ADP5588 QWERTY KEYPAD AND IO EXPANDER DRIVER (ADP5588/ADP5587)
@@ -356,7 +351,7 @@ L:	device-drivers-devel@blackfin.uclinux.org
 W:	http://wiki.analog.com/ADP5588
 S:	Supported
 F:	drivers/input/keyboard/adp5588-keys.c
-F:	drivers/gpio/adp5588-gpio.c
+F:	drivers/gpio/gpio-adp5588.c
 
 ADP8860 BACKLIGHT DRIVER (ADP8860/ADP8861/ADP8863)
 M:	Michael Hennerich <michael.hennerich@analog.com>
@@ -919,7 +914,6 @@ M:	Lennert Buytenhek <kernel@wantstofly.org>
 M:	Nicolas Pitre <nico@fluxnic.net>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Odd Fixes
-F:	arch/arm/mach-loki/
 F:	arch/arm/mach-kirkwood/
 F:	arch/arm/mach-mv78xx0/
 F:	arch/arm/mach-orion5x/
@@ -1081,8 +1075,8 @@ L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 F:	arch/arm/mach-s5pv210/mach-aquila.c
 F:	arch/arm/mach-s5pv210/mach-goni.c
-F:	arch/arm/mach-exynos4/mach-universal_c210.c
-F:	arch/arm/mach-exynos4/mach-nuri.c
+F:	arch/arm/mach-exynos/mach-universal_c210.c
+F:	arch/arm/mach-exynos/mach-nuri.c
 
 ARM/SAMSUNG S5P SERIES FIMC SUPPORT
 M:	Kyungmin Park <kyungmin.park@samsung.com>
@@ -1110,7 +1104,6 @@ M:	Tomasz Stanislawski <t.stanislaws@samsung.com>
 L:	linux-arm-kernel@lists.infradead.org
 L:	linux-media@vger.kernel.org
 S:	Maintained
-F:	arch/arm/plat-s5p/dev-tv.c
 F:	drivers/media/video/s5p-tv/
 
 ARM/SHMOBILE ARM ARCHITECTURE
@@ -1145,14 +1138,13 @@ L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 W:	http://www.mcuos.com
 S:	Maintained
 F:	arch/arm/mach-w90x900/
-F:	arch/arm/mach-nuc93x/
 F:	drivers/input/keyboard/w90p910_keypad.c
 F:	drivers/input/touchscreen/w90p910_ts.c
 F:	drivers/watchdog/nuc900_wdt.c
 F:	drivers/net/ethernet/nuvoton/w90p910_ether.c
 F:	drivers/mtd/nand/nuc900_nand.c
 F:	drivers/rtc/rtc-nuc900.c
-F:	drivers/spi/spi_nuc900.c
+F:	drivers/spi/spi-nuc900.c
 F:	drivers/usb/host/ehci-w90x900.c
 F:	drivers/video/nuc900fb.c
 
@@ -1177,7 +1169,6 @@ L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
 S:	Maintained
 F:	arch/arm/mach-ux500/
 F:	drivers/dma/ste_dma40*
-F:	drivers/mfd/ab3550*
 F:	drivers/mfd/abx500*
 F:	drivers/mfd/ab8500*
 F:	drivers/mfd/stmpe*
@@ -1357,7 +1348,7 @@ F:	drivers/net/ethernet/cadence/
 ATMEL SPI DRIVER
 M:	Nicolas Ferre <nicolas.ferre@atmel.com>
 S:	Supported
-F:	drivers/spi/atmel_spi.*
+F:	drivers/spi/spi-atmel.*
 
 ATMEL USBA UDC DRIVER
 M:	Nicolas Ferre <nicolas.ferre@atmel.com>
@@ -1496,7 +1487,7 @@ M:	Sonic Zhang <sonic.zhang@analog.com>
 L:	uclinux-dist-devel@blackfin.uclinux.org
 W:	http://blackfin.uclinux.org
 S:	Supported
-F:	drivers/tty/serial/bfin_5xx.c
+F:	drivers/tty/serial/bfin_uart.c
 
 BLACKFIN WATCHDOG DRIVER
 M:	Mike Frysinger <vapier.adi@gmail.com>
@@ -1587,7 +1578,7 @@ M:	Franky (Zhenhui) Lin <frankyl@broadcom.com>
 M:	Kan Yan	<kanyan@broadcom.com>
 L:	linux-wireless@vger.kernel.org
 S:	Supported
-F:	drivers/staging/brcm80211/
+F:	drivers/net/wireless/brcm80211/
 
 BROADCOM BNX2FC 10 GIGABIT FCOE DRIVER
 M:	Bhanu Prakash Gollapudi <bprakash@broadcom.com>
@@ -1626,7 +1617,7 @@ BT8XXGPIO DRIVER
 M:	Michael Buesch <m@bues.ch>
 W:	http://bu3sch.de/btgpio.php
 S:	Maintained
-F:	drivers/gpio/bt8xxgpio.c
+F:	drivers/gpio/gpio-bt8xx.c
 
 BTRFS FILE SYSTEM
 M:	Chris Mason <chris.mason@oracle.com>
@@ -1654,6 +1645,14 @@ T:	git git://git.alsa-project.org/alsa-kernel.git
 S:	Maintained
 F:	sound/pci/oxygen/
 
+C6X ARCHITECTURE
+M:	Mark Salter <msalter@redhat.com>
+M:	Aurelien Jacquiot <a-jacquiot@ti.com>
+L:	linux-c6x-dev@linux-c6x.org
+W:	http://www.linux-c6x.org/wiki/index.php/Main_Page
+S:	Maintained
+F:	arch/c6x/
+
 CACHEFILES: FS-CACHE BACKEND FOR CACHING ON MOUNTED FILESYSTEMS
 M:	David Howells <dhowells@redhat.com>
 L:	linux-cachefs@redhat.com
@@ -1667,7 +1666,7 @@ L:	linux-media@vger.kernel.org
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6.git
 S:	Maintained
 F:	Documentation/video4linux/cafe_ccic
-F:	drivers/media/video/cafe_ccic*
+F:	drivers/media/video/marvell-ccic/
 
 CAIF NETWORK LAYER
 M:	Sjur Braendeland <sjur.brandeland@stericsson.com>
@@ -1891,12 +1890,6 @@ L:	platform-driver-x86@vger.kernel.org
 S:	Maintained
 F:	drivers/platform/x86/compal-laptop.c
 
-COMPUTONE INTELLIPORT MULTIPORT CARD
-W:	http://www.wittsend.com/computone.html
-S:	Orphan
-F:	Documentation/serial/computone.txt
-F:	drivers/staging/tty/ip2/
-
 CONEXANT ACCESSRUNNER USB DRIVER
 M:	Simon Arlott <cxacru@fire.lp0.eu>
 L:	accessrunner-general@lists.sourceforge.net
@@ -2111,7 +2104,7 @@ DAVICOM FAST ETHERNET (DMFE) NETWORK DRIVER
 L:	netdev@vger.kernel.org
 S:	Orphan
 F:	Documentation/networking/dmfe.txt
-F:	drivers/net/ethernet/tulip/dmfe.c
+F:	drivers/net/ethernet/dec/tulip/dmfe.c
 
 DC390/AM53C974 SCSI driver
 M:	Kurt Garloff <garloff@suse.de>
@@ -2184,6 +2177,13 @@ T:	git git://git.kernel.org/pub/scm/linux/kernel/git/balbi/usb.git
 S:	Maintained
 F:	drivers/usb/dwc3/
 
+DEVICE FREQUENCY (DEVFREQ)
+M:	MyungJoo Ham <myungjoo.ham@samsung.com>
+M:	Kyungmin Park <kyungmin.park@samsung.com>
+L:	linux-kernel@vger.kernel.org
+S:	Maintained
+F:	drivers/devfreq/
+
 DEVICE NUMBER REGISTRY
 M:	Torben Mathiasen <device@lanana.org>
 W:	http://lanana.org/docs/device-list/index.html
@@ -2200,15 +2200,6 @@ F:	drivers/md/dm*
 F:	include/linux/device-mapper.h
 F:	include/linux/dm-*.h
 
-DIGI INTL. EPCA DRIVER
-M:	"Digi International, Inc" <Eng.Linux@digi.com>
-L:	Eng.Linux@digi.com
-W:	http://www.digi.com
-S:	Orphan
-F:	Documentation/serial/digiepca.txt
-F:	drivers/staging/tty/epca*
-F:	drivers/staging/tty/digi*
-
 DIOLAN U2C-12 I2C DRIVER
 M:	Guenter Roeck <guenter.roeck@ericsson.com>
 L:	linux-i2c@vger.kernel.org
@@ -2930,7 +2921,7 @@ GRETH 10/100/1G Ethernet MAC device driver
 M:	Kristoffer Glembo <kristoffer@gaisler.com>
 L:	netdev@vger.kernel.org
 S:	Maintained
-F:	drivers/net/greth*
+F:	drivers/net/ethernet/aeroflex/
 
 GSPCA FINEPIX SUBDRIVER
 M:	Frank Zago <frank@zago.net>
@@ -3880,8 +3871,7 @@ L:	keyrings@linux-nfs.org
 S:	Supported
 F:	Documentation/security/keys-trusted-encrypted.txt
 F:	include/keys/encrypted-type.h
-F:	security/keys/encrypted.c
-F:	security/keys/encrypted.h
+F:	security/keys/encrypted-keys/
 
 KGDB / KDB /debug_core
 M:	Jason Wessel <jason.wessel@windriver.com>
@@ -5131,10 +5121,19 @@ L:	linux-mtd@lists.infradead.org
 S:	Maintained
 F:	drivers/mtd/devices/phram.c
 
+PICOXCELL SUPPORT
+M:	Jamie Iles <jamie@jamieiles.com>
+L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+T:	git git://github.com/jamieiles/linux-2.6-ji.git
+S:	Supported
+F:	arch/arm/mach-picoxcell
+F:	drivers/*/picoxcell*
+F:	drivers/*/*/picoxcell*
+
 PIN CONTROL SUBSYSTEM
 M:	Linus Walleij <linus.walleij@linaro.org>
 S:	Maintained
-F:	drivers/pinmux/
+F:	drivers/pinctrl/
 
 PKTCDVD DRIVER
 M:	Peter Osterlund <petero2@telia.com>
@@ -5317,35 +5316,27 @@ F:	drivers/media/video/pvrusb2/
 PXA2xx/PXA3xx SUPPORT
 M:	Eric Miao <eric.y.miao@gmail.com>
 M:	Russell King <linux@arm.linux.org.uk>
+M:	Haojian Zhuang <haojian.zhuang@marvell.com>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+T:	git git://github.com/hzhuang1/linux.git
+T:	git git://git.linaro.org/people/ycmiao/pxa-linux.git
 S:	Maintained
 F:	arch/arm/mach-pxa/
 F:	drivers/pcmcia/pxa2xx*
-F:	drivers/spi/pxa2xx*
+F:	drivers/spi/spi-pxa2xx*
 F:	drivers/usb/gadget/pxa2*
 F:	include/sound/pxa2xx-lib.h
 F:	sound/arm/pxa*
 F:	sound/soc/pxa
 
-PXA168 SUPPORT
-M:	Eric Miao <eric.y.miao@gmail.com>
-M:	Jason Chagas <jason.chagas@marvell.com>
-L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6.git
-S:	Maintained
-
-PXA910 SUPPORT
+MMP SUPPORT
 M:	Eric Miao <eric.y.miao@gmail.com>
-L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6.git
-S:	Maintained
-
-MMP2 SUPPORT (aka ARMADA610)
 M:	Haojian Zhuang <haojian.zhuang@marvell.com>
-M:	Eric Miao <eric.y.miao@gmail.com>
 L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
-T:	git git://git.kernel.org/pub/scm/linux/kernel/git/ycmiao/pxa-linux-2.6.git
+T:	git git://github.com/hzhuang1/linux.git
+T:	git git://git.linaro.org/people/ycmiao/pxa-linux.git
 S:	Maintained
+F:	arch/arm/mach-mmp/
 
 PXA MMCI DRIVER
 S:	Orphan
@@ -5555,11 +5546,6 @@ M:	Maxim Levitsky <maximlevitsky@gmail.com>
 S:	Maintained
 F:	drivers/memstick/host/r592.*
 
-RISCOM8 DRIVER
-S:	Orphan
-F:	Documentation/serial/riscom8.txt
-F:	drivers/staging/tty/riscom8*
-
 ROCKETPORT DRIVER
 P:	Comtrol Corp.
 W:	http://www.comtrol.com
@@ -5819,13 +5805,14 @@ L:	linux-mmc@vger.kernel.org
 T:	git git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc.git
 S:	Maintained
 F:	drivers/mmc/host/sdhci.*
+F:	drivers/mmc/host/sdhci-pltfm.[ch]
 
 SECURE DIGITAL HOST CONTROLLER INTERFACE, OPEN FIRMWARE BINDINGS (SDHCI-OF)
 M:	Anton Vorontsov <avorontsov@ru.mvista.com>
 L:	linuxppc-dev@lists.ozlabs.org
 L:	linux-mmc@vger.kernel.org
 S:	Maintained
-F:	drivers/mmc/host/sdhci-of.*
+F:	drivers/mmc/host/sdhci-pltfm.[ch]
 
 SECURE DIGITAL HOST CONTROLLER INTERFACE (SDHCI) SAMSUNG DRIVER
 M:	Ben Dooks <ben-linux@fluff.org>
@@ -6204,9 +6191,7 @@ M:	Viresh Kumar <viresh.kumar@st.com>
 W:	http://www.st.com/spear
 S:	Maintained
 F:	arch/arm/mach-spear*/clock.c
-F:	arch/arm/mach-spear*/include/mach/clkdev.h
 F:	arch/arm/plat-spear/clock.c
-F:	arch/arm/plat-spear/include/plat/clkdev.h
 F:	arch/arm/plat-spear/include/plat/clock.h
 
 SPEAR PAD MULTIPLEXING SUPPORT
@@ -6222,11 +6207,6 @@ F:	arch/arm/mach-spear3xx/spear3*0_evb.c
 F:	arch/arm/mach-spear6xx/spear600.c
 F:	arch/arm/mach-spear6xx/spear600_evb.c
 
-SPECIALIX IO8+ MULTIPORT SERIAL CARD DRIVER
-S:	Orphan
-F:	Documentation/serial/specialix.txt
-F:	drivers/staging/tty/specialix*
-
 SPI SUBSYSTEM
 M:	Grant Likely <grant.likely@secretlab.ca>
 L:	spi-devel-general@lists.sourceforge.net
@@ -6304,11 +6284,6 @@ M:	Manu Abraham <abraham.manu@gmail.com>
 S:	Odd Fixes
 F:	drivers/staging/crystalhd/
 
-STAGING - CYPRESS WESTBRIDGE SUPPORT
-M:	David Cross <david.cross@cypress.com>
-S:	Odd Fixes
-F:	drivers/staging/westbridge/
-
 STAGING - ECHO CANCELLER
 M:	Steve Underwood <steveu@coppice.org>
 M:	David Rowe <david@rowetel.com>
@@ -6340,7 +6315,7 @@ STAGING - LIRC (LINUX INFRARED REMOTE CONTROL) DRIVERS
 M:	Jarod Wilson <jarod@wilsonet.com>
 W:	http://www.lirc.org/
 S:	Odd Fixes
-F:	drivers/staging/lirc/
+F:	drivers/staging/media/lirc/
 
 STAGING - NVIDIA COMPLIANT EMBEDDED CONTROLLER INTERFACE (nvec)
 M:	Julian Andres Klode <jak@jak-linux.org>
@@ -6376,7 +6351,7 @@ F:	drivers/staging/sm7xx/
 STAGING - SOFTLOGIC 6x10 MPEG CODEC
 M:	Ben Collins <bcollins@bluecherry.net>
 S:	Odd Fixes
-F:	drivers/staging/solo6x10/
+F:	drivers/staging/media/solo6x10/
 
 STAGING - SPEAKUP CONSOLE SPEECH DRIVER
 M:	William Hubbs <w.d.hubbs@gmail.com>
@@ -6414,7 +6389,7 @@ S:	Odd Fixes
 F:	drivers/staging/winbond/
 
 STAGING - XGI Z7,Z9,Z11 PCI DISPLAY DRIVER
-M:	Arnaud Patard <apatard@mandriva.com>
+M:	Arnaud Patard <arnaud.patard@rtp-net.org>
 S:	Odd Fixes
 F:	drivers/staging/xgifb/
 
@@ -6679,7 +6654,7 @@ TULIP NETWORK DRIVERS
 M:	Grant Grundler <grundler@parisc-linux.org>
 L:	netdev@vger.kernel.org
 S:	Maintained
-F:	drivers/net/ethernet/tulip/
+F:	drivers/net/ethernet/dec/tulip/
 
 TUN/TAP driver
 M:	Maxim Krasnyansky <maxk@qualcomm.com>
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
index 3d74801a4015..56a4df952fb0 100644
--- a/arch/alpha/Kconfig
+++ b/arch/alpha/Kconfig
@@ -70,10 +70,6 @@ config GENERIC_ISA_DMA
 	bool
 	default y
 
-config GENERIC_IOMAP
-	bool
-	default n
-
 source "init/Kconfig"
 source "kernel/Kconfig.freezer"
 
@@ -319,6 +315,7 @@ config ISA_DMA_API
 config PCI
 	bool
 	depends on !ALPHA_JENSEN
+	select GENERIC_PCI_IOMAP
 	default y
 	help
 	  Find out whether you have a PCI motherboard. PCI is the name of a
diff --git a/arch/alpha/kernel/pci-noop.c b/arch/alpha/kernel/pci-noop.c
index 246100ef07c2..04eea4894ef3 100644
--- a/arch/alpha/kernel/pci-noop.c
+++ b/arch/alpha/kernel/pci-noop.c
@@ -185,15 +185,3 @@ struct dma_map_ops alpha_noop_ops = {
 
 struct dma_map_ops *dma_ops = &alpha_noop_ops;
 EXPORT_SYMBOL(dma_ops);
-
-void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
-{
-	return NULL;
-}
-
-void pci_iounmap(struct pci_dev *dev, void __iomem * addr)
-{
-}
-
-EXPORT_SYMBOL(pci_iomap);
-EXPORT_SYMBOL(pci_iounmap);
diff --git a/arch/alpha/kernel/pci.c b/arch/alpha/kernel/pci.c
index c9ab94ee1ca8..f3cae275d3f5 100644
--- a/arch/alpha/kernel/pci.c
+++ b/arch/alpha/kernel/pci.c
@@ -508,30 +508,7 @@ sys_pciconfig_iobase(long which, unsigned long bus, unsigned long dfn)
 	return -EOPNOTSUPP;
 }
 
-/* Create an __iomem token from a PCI BAR.  Copied from lib/iomap.c with
-   no changes, since we don't want the other things in that object file.  */
-
-void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
-{
-	resource_size_t start = pci_resource_start(dev, bar);
-	resource_size_t len = pci_resource_len(dev, bar);
-	unsigned long flags = pci_resource_flags(dev, bar);
-
-	if (!len || !start)
-		return NULL;
-	if (maxlen && len > maxlen)
-		len = maxlen;
-	if (flags & IORESOURCE_IO)
-		return ioport_map(start, len);
-	if (flags & IORESOURCE_MEM) {
-		/* Not checking IORESOURCE_CACHEABLE because alpha does
-		   not distinguish between ioremap and ioremap_nocache.  */
-		return ioremap(start, len);
-	}
-	return NULL;
-}
-
-/* Destroy that token.  Not copied from lib/iomap.c.  */
+/* Destroy an __iomem token.  Not copied from lib/iomap.c.  */
 
 void pci_iounmap(struct pci_dev *dev, void __iomem * addr)
 {
@@ -539,7 +516,6 @@ void pci_iounmap(struct pci_dev *dev, void __iomem * addr)
 		iounmap(addr);
 }
 
-EXPORT_SYMBOL(pci_iomap);
 EXPORT_SYMBOL(pci_iounmap);
 
 /* FIXME: Some boxes have multiple ISA bridges! */
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index f72e1707d463..24626b0419ee 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -16,6 +16,7 @@ config ARM
 	select HAVE_FTRACE_MCOUNT_RECORD if (!XIP_KERNEL)
 	select HAVE_DYNAMIC_FTRACE if (!XIP_KERNEL)
 	select HAVE_FUNCTION_GRAPH_TRACER if (!THUMB2_KERNEL)
+	select ARCH_BINFMT_ELF_RANDOMIZE_PIE
 	select HAVE_GENERIC_DMA_COHERENT
 	select HAVE_KERNEL_GZIP
 	select HAVE_KERNEL_LZO
@@ -30,6 +31,7 @@ config ARM
 	select HAVE_SPARSE_IRQ
 	select GENERIC_IRQ_SHOW
 	select CPU_PM if (SUSPEND || CPU_IDLE)
+	select GENERIC_PCI_IOMAP
 	help
 	  The ARM series is a line of low-power-consumption RISC chip designs
 	  licensed by ARM Ltd and targeted at embedded applications and
@@ -447,6 +449,7 @@ config ARCH_MXS
 	select ARCH_REQUIRE_GPIOLIB
 	select CLKDEV_LOOKUP
 	select CLKSRC_MMIO
+	select HAVE_CLK_PREPARE
 	help
 	  Support for Freescale MXS-based family of processors
 
@@ -597,6 +600,7 @@ config ARCH_MMP
 	select ARCH_REQUIRE_GPIOLIB
 	select CLKDEV_LOOKUP
 	select GENERIC_CLOCKEVENTS
+	select GPIO_PXA
 	select HAVE_SCHED_CLOCK
 	select TICK_ONESHOT
 	select PLAT_PXA
@@ -658,6 +662,7 @@ config ARCH_PICOXCELL
 	select HAVE_SCHED_CLOCK
 	select HAVE_TCM
 	select NO_IOPORT
+	select SPARSE_IRQ
 	select USE_OF
 	help
 	  This enables support for systems based on the Picochip picoXcell
@@ -681,6 +686,7 @@ config ARCH_PXA
 	select CLKSRC_MMIO
 	select ARCH_REQUIRE_GPIOLIB
 	select GENERIC_CLOCKEVENTS
+	select GPIO_PXA
 	select HAVE_SCHED_CLOCK
 	select TICK_ONESHOT
 	select PLAT_PXA
@@ -748,7 +754,7 @@ config ARCH_SA1100
 	select ARCH_HAS_CPUFREQ
 	select CPU_FREQ
 	select GENERIC_CLOCKEVENTS
-	select HAVE_CLK
+	select CLKDEV_LOOKUP
 	select HAVE_SCHED_CLOCK
 	select TICK_ONESHOT
 	select ARCH_REQUIRE_GPIOLIB
@@ -892,7 +898,6 @@ config ARCH_U300
 	select HAVE_MACH_CLKDEV
 	select GENERIC_GPIO
 	select ARCH_REQUIRE_GPIOLIB
-	select NEED_MACH_MEMORY_H
 	help
 	  Support for ST-Ericsson U300 series mobile platforms.
 
diff --git a/arch/arm/Kconfig.debug b/arch/arm/Kconfig.debug
index c5213e78606b..e0d236d7ff73 100644
--- a/arch/arm/Kconfig.debug
+++ b/arch/arm/Kconfig.debug
@@ -100,6 +100,14 @@ choice
 		  Note that the system will appear to hang during boot if there
 		  is nothing connected to read from the DCC.
 
+	config AT91_DEBUG_LL_DBGU0
+		bool "Kernel low-level debugging on rm9200, 9260/9g20, 9261/9g10 and 9rl"
+		depends on HAVE_AT91_DBGU0
+
+	config AT91_DEBUG_LL_DBGU1
+		bool "Kernel low-level debugging on 9263, 9g45 and cap9"
+		depends on HAVE_AT91_DBGU1
+
 	config DEBUG_FOOTBRIDGE_COM1
 		bool "Kernel low-level debugging messages via footbridge 8250 at PCI COM1"
 		depends on FOOTBRIDGE
@@ -247,6 +255,43 @@ choice
 		  their output to the standard serial port on the RealView
 		  PB1176 platform.
 
+	config DEBUG_MSM_UART1
+		bool "Kernel low-level debugging messages via MSM UART1"
+		depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
+		help
+		  Say Y here if you want the debug print routines to direct
+		  their output to the first serial port on MSM devices.
+
+	config DEBUG_MSM_UART2
+		bool "Kernel low-level debugging messages via MSM UART2"
+		depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
+		help
+		  Say Y here if you want the debug print routines to direct
+		  their output to the second serial port on MSM devices.
+
+	config DEBUG_MSM_UART3
+		bool "Kernel low-level debugging messages via MSM UART3"
+		depends on ARCH_MSM7X00A || ARCH_MSM7X30 || ARCH_QSD8X50
+		help
+		  Say Y here if you want the debug print routines to direct
+		  their output to the third serial port on MSM devices.
+
+	config DEBUG_MSM8660_UART
+		bool "Kernel low-level debugging messages via MSM 8660 UART"
+		depends on ARCH_MSM8X60
+		select MSM_HAS_DEBUG_UART_HS
+		help
+		  Say Y here if you want the debug print routines to direct
+		  their output to the serial port on MSM 8660 devices.
+
+	config DEBUG_MSM8960_UART
+		bool "Kernel low-level debugging messages via MSM 8960 UART"
+		depends on ARCH_MSM8960
+		select MSM_HAS_DEBUG_UART_HS
+		help
+		  Say Y here if you want the debug print routines to direct
+		  their output to the serial port on MSM 8960 devices.
+
 endchoice
 
 config EARLY_PRINTK
diff --git a/arch/arm/boot/dts/at91sam9g20.dtsi b/arch/arm/boot/dts/at91sam9g20.dtsi
index aeef04269cf8..07603b8c9503 100644
--- a/arch/arm/boot/dts/at91sam9g20.dtsi
+++ b/arch/arm/boot/dts/at91sam9g20.dtsi
@@ -114,6 +114,13 @@
 				atmel,use-dma-tx;
 				status = "disabled";
 			};
+
+			macb0: ethernet@fffc4000 {
+				compatible = "cdns,at32ap7000-macb", "cdns,macb";
+				reg = <0xfffc4000 0x100>;
+				interrupts = <21>;
+				status = "disabled";
+			};
 		};
 	};
 };
diff --git a/arch/arm/boot/dts/at91sam9g45.dtsi b/arch/arm/boot/dts/at91sam9g45.dtsi
index db6a45202f26..fffa005300a4 100644
--- a/arch/arm/boot/dts/at91sam9g45.dtsi
+++ b/arch/arm/boot/dts/at91sam9g45.dtsi
@@ -101,6 +101,13 @@
 				atmel,use-dma-tx;
 				status = "disabled";
 			};
+
+			macb0: ethernet@fffbc000 {
+				compatible = "cdns,at32ap7000-macb", "cdns,macb";
+				reg = <0xfffbc000 0x100>;
+				interrupts = <25>;
+				status = "disabled";
+			};
 		};
 	};
 };
diff --git a/arch/arm/boot/dts/at91sam9m10g45ek.dts b/arch/arm/boot/dts/at91sam9m10g45ek.dts
index 85b34f59cd82..a387e7704ce1 100644
--- a/arch/arm/boot/dts/at91sam9m10g45ek.dts
+++ b/arch/arm/boot/dts/at91sam9m10g45ek.dts
@@ -30,6 +30,11 @@
 			usart1: serial@fff90000 {
 				status = "okay";
 			};
+
+			macb0: ethernet@fffbc000 {
+				phy-mode = "rmii";
+				status = "okay";
+			};
 		};
 	};
 };
diff --git a/arch/arm/boot/dts/exynos4210-origen.dts b/arch/arm/boot/dts/exynos4210-origen.dts
new file mode 100644
index 000000000000..b8c476384eef
--- /dev/null
+++ b/arch/arm/boot/dts/exynos4210-origen.dts
@@ -0,0 +1,137 @@
+/*
+ * Samsung's Exynos4210 based Origen board device tree source
+ *
+ * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ * Copyright (c) 2010-2011 Linaro Ltd.
+ *		www.linaro.org
+ *
+ * Device tree source file for Insignal's Origen board which is based on
+ * Samsung's Exynos4210 SoC.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+/dts-v1/;
+/include/ "exynos4210.dtsi"
+
+/ {
+	model = "Insignal Origen evaluation board based on Exynos4210";
+	compatible = "insignal,origen", "samsung,exynos4210";
+
+	memory {
+		reg = <0x40000000 0x40000000>;
+	};
+
+	chosen {
+		bootargs ="root=/dev/ram0 rw ramdisk=8192 initrd=0x41000000,8M console=ttySAC2,115200 init=/linuxrc";
+	};
+
+	sdhci@12530000 {
+		samsung,sdhci-bus-width = <4>;
+		linux,mmc_cap_4_bit_data;
+		samsung,sdhci-cd-internal;
+		gpio-cd = <&gpk2 2 2 3 3>;
+		gpios = <&gpk2 0 2 0 3>,
+			<&gpk2 1 2 0 3>,
+			<&gpk2 3 2 3 3>,
+			<&gpk2 4 2 3 3>,
+			<&gpk2 5 2 3 3>,
+			<&gpk2 6 2 3 3>;
+	};
+
+	sdhci@12510000 {
+		samsung,sdhci-bus-width = <4>;
+		linux,mmc_cap_4_bit_data;
+		samsung,sdhci-cd-internal;
+		gpio-cd = <&gpk0 2 2 3 3>;
+		gpios = <&gpk0 0 2 0 3>,
+			<&gpk0 1 2 0 3>,
+			<&gpk0 3 2 3 3>,
+			<&gpk0 4 2 3 3>,
+			<&gpk0 5 2 3 3>,
+			<&gpk0 6 2 3 3>;
+	};
+
+	gpio_keys {
+		compatible = "gpio-keys";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		up {
+			label = "Up";
+			gpios = <&gpx2 0 0 0 2>;
+			linux,code = <103>;
+		};
+
+		down {
+			label = "Down";
+			gpios = <&gpx2 1 0 0 2>;
+			linux,code = <108>;
+		};
+
+		back {
+			label = "Back";
+			gpios = <&gpx1 7 0 0 2>;
+			linux,code = <158>;
+		};
+
+		home {
+			label = "Home";
+			gpios = <&gpx1 6 0 0 2>;
+			linux,code = <102>;
+		};
+
+		menu {
+			label = "Menu";
+			gpios = <&gpx1 5 0 0 2>;
+			linux,code = <139>;
+		};
+	};
+
+	keypad@100A0000 {
+		status = "disabled";
+	};
+
+	sdhci@12520000 {
+		status = "disabled";
+	};
+
+	sdhci@12540000 {
+		status = "disabled";
+	};
+
+	i2c@13860000 {
+		status = "disabled";
+	};
+
+	i2c@13870000 {
+		status = "disabled";
+	};
+
+	i2c@13880000 {
+		status = "disabled";
+	};
+
+	i2c@13890000 {
+		status = "disabled";
+	};
+
+	i2c@138A0000 {
+		status = "disabled";
+	};
+
+	i2c@138B0000 {
+		status = "disabled";
+	};
+
+	i2c@138C0000 {
+		status = "disabled";
+	};
+
+	i2c@138D0000 {
+		status = "disabled";
+	};
+};
diff --git a/arch/arm/boot/dts/exynos4210-smdkv310.dts b/arch/arm/boot/dts/exynos4210-smdkv310.dts
new file mode 100644
index 000000000000..27afc8e535ca
--- /dev/null
+++ b/arch/arm/boot/dts/exynos4210-smdkv310.dts
@@ -0,0 +1,182 @@
+/*
+ * Samsung's Exynos4210 based SMDKV310 board device tree source
+ *
+ * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ * Copyright (c) 2010-2011 Linaro Ltd.
+ *		www.linaro.org
+ *
+ * Device tree source file for Samsung's SMDKV310 board which is based on
+ * Samsung's Exynos4210 SoC.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+/dts-v1/;
+/include/ "exynos4210.dtsi"
+
+/ {
+	model = "Samsung smdkv310 evaluation board based on Exynos4210";
+	compatible = "samsung,smdkv310", "samsung,exynos4210";
+
+	memory {
+		reg = <0x40000000 0x80000000>;
+	};
+
+	chosen {
+		bootargs = "root=/dev/ram0 rw ramdisk=8192 initrd=0x41000000,8M console=ttySAC1,115200 init=/linuxrc";
+	};
+
+	sdhci@12530000 {
+		samsung,sdhci-bus-width = <4>;
+		linux,mmc_cap_4_bit_data;
+		samsung,sdhci-cd-internal;
+		gpio-cd = <&gpk2 2 2 3 3>;
+		gpios = <&gpk2 0 2 0 3>,
+			<&gpk2 1 2 0 3>,
+			<&gpk2 3 2 3 3>,
+			<&gpk2 4 2 3 3>,
+			<&gpk2 5 2 3 3>,
+			<&gpk2 6 2 3 3>;
+	};
+
+	keypad@100A0000 {
+		samsung,keypad-num-rows = <2>;
+		samsung,keypad-num-columns = <8>;
+		linux,keypad-no-autorepeat;
+		linux,keypad-wakeup;
+
+		row-gpios = <&gpx2 0 3 3 0>,
+			    <&gpx2 1 3 3 0>;
+
+		col-gpios = <&gpx1 0 3 0 0>,
+			    <&gpx1 1 3 0 0>,
+			    <&gpx1 2 3 0 0>,
+			    <&gpx1 3 3 0 0>,
+			    <&gpx1 4 3 0 0>,
+			    <&gpx1 5 3 0 0>,
+			    <&gpx1 6 3 0 0>,
+			    <&gpx1 7 3 0 0>;
+
+		key_1 {
+			keypad,row = <0>;
+			keypad,column = <3>;
+			linux,code = <2>;
+		};
+
+		key_2 {
+			keypad,row = <0>;
+			keypad,column = <4>;
+			linux,code = <3>;
+		};
+
+		key_3 {
+			keypad,row = <0>;
+			keypad,column = <5>;
+			linux,code = <4>;
+		};
+
+		key_4 {
+			keypad,row = <0>;
+			keypad,column = <6>;
+			linux,code = <5>;
+		};
+
+		key_5 {
+			keypad,row = <0>;
+			keypad,column = <7>;
+			linux,code = <6>;
+		};
+
+		key_a {
+			keypad,row = <1>;
+			keypad,column = <3>;
+			linux,code = <30>;
+		};
+
+		key_b {
+			keypad,row = <1>;
+			keypad,column = <4>;
+			linux,code = <48>;
+		};
+
+		key_c {
+			keypad,row = <1>;
+			keypad,column = <5>;
+			linux,code = <46>;
+		};
+
+		key_d {
+			keypad,row = <1>;
+			keypad,column = <6>;
+			linux,code = <32>;
+		};
+
+		key_e {
+			keypad,row = <1>;
+			keypad,column = <7>;
+			linux,code = <18>;
+		};
+	};
+
+	i2c@13860000 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		samsung,i2c-sda-delay = <100>;
+		samsung,i2c-max-bus-freq = <20000>;
+		gpios = <&gpd1 0 2 3 0>,
+			<&gpd1 1 2 3 0>;
+
+		eeprom@50 {
+			compatible = "samsung,24ad0xd1";
+			reg = <0x50>;
+		};
+
+		eeprom@52 {
+			compatible = "samsung,24ad0xd1";
+			reg = <0x52>;
+		};
+	};
+
+	sdhci@12510000 {
+		status = "disabled";
+	};
+
+	sdhci@12520000 {
+		status = "disabled";
+	};
+
+	sdhci@12540000 {
+		status = "disabled";
+	};
+
+	i2c@13870000 {
+		status = "disabled";
+	};
+
+	i2c@13880000 {
+		status = "disabled";
+	};
+
+	i2c@13890000 {
+		status = "disabled";
+	};
+
+	i2c@138A0000 {
+		status = "disabled";
+	};
+
+	i2c@138B0000 {
+		status = "disabled";
+	};
+
+	i2c@138C0000 {
+		status = "disabled";
+	};
+
+	i2c@138D0000 {
+		status = "disabled";
+	};
+};
diff --git a/arch/arm/boot/dts/exynos4210.dtsi b/arch/arm/boot/dts/exynos4210.dtsi
new file mode 100644
index 000000000000..63d7578856c1
--- /dev/null
+++ b/arch/arm/boot/dts/exynos4210.dtsi
@@ -0,0 +1,397 @@
+/*
+ * Samsung's Exynos4210 SoC device tree source
+ *
+ * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ * Copyright (c) 2010-2011 Linaro Ltd.
+ *		www.linaro.org
+ *
+ * Samsung's Exynos4210 SoC device nodes are listed in this file. Exynos4210
+ * based board files can include this file and provide values for board specfic
+ * bindings.
+ *
+ * Note: This file does not include device nodes for all the controllers in
+ * Exynos4210 SoC. As device tree coverage for Exynos4210 increases, additional
+ * nodes can be added to this file.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+/include/ "skeleton.dtsi"
+
+/ {
+	compatible = "samsung,exynos4210";
+	interrupt-parent = <&gic>;
+
+	gic:interrupt-controller@10490000 {
+		compatible = "arm,cortex-a9-gic";
+		#interrupt-cells = <3>;
+		interrupt-controller;
+		reg = <0x10490000 0x1000>, <0x10480000 0x100>;
+	};
+
+	watchdog@10060000 {
+		compatible = "samsung,s3c2410-wdt";
+		reg = <0x10060000 0x100>;
+		interrupts = <0 43 0>;
+	};
+
+	rtc@10070000 {
+		compatible = "samsung,s3c6410-rtc";
+		reg = <0x10070000 0x100>;
+		interrupts = <0 44 0>, <0 45 0>;
+	};
+
+	keypad@100A0000 {
+		compatible = "samsung,s5pv210-keypad";
+		reg = <0x100A0000 0x100>;
+		interrupts = <0 109 0>;
+	};
+
+	sdhci@12510000 {
+		compatible = "samsung,exynos4210-sdhci";
+		reg = <0x12510000 0x100>;
+		interrupts = <0 73 0>;
+	};
+
+	sdhci@12520000 {
+		compatible = "samsung,exynos4210-sdhci";
+		reg = <0x12520000 0x100>;
+		interrupts = <0 74 0>;
+	};
+
+	sdhci@12530000 {
+		compatible = "samsung,exynos4210-sdhci";
+		reg = <0x12530000 0x100>;
+		interrupts = <0 75 0>;
+	};
+
+	sdhci@12540000 {
+		compatible = "samsung,exynos4210-sdhci";
+		reg = <0x12540000 0x100>;
+		interrupts = <0 76 0>;
+	};
+
+	serial@13800000 {
+		compatible = "samsung,exynos4210-uart";
+		reg = <0x13800000 0x100>;
+		interrupts = <0 52 0>;
+	};
+
+	serial@13810000 {
+		compatible = "samsung,exynos4210-uart";
+		reg = <0x13810000 0x100>;
+		interrupts = <0 53 0>;
+	};
+
+	serial@13820000 {
+		compatible = "samsung,exynos4210-uart";
+		reg = <0x13820000 0x100>;
+		interrupts = <0 54 0>;
+	};
+
+	serial@13830000 {
+		compatible = "samsung,exynos4210-uart";
+		reg = <0x13830000 0x100>;
+		interrupts = <0 55 0>;
+	};
+
+	i2c@13860000 {
+		compatible = "samsung,s3c2440-i2c";
+		reg = <0x13860000 0x100>;
+		interrupts = <0 58 0>;
+	};
+
+	i2c@13870000 {
+		compatible = "samsung,s3c2440-i2c";
+		reg = <0x13870000 0x100>;
+		interrupts = <0 59 0>;
+	};
+
+	i2c@13880000 {
+		compatible = "samsung,s3c2440-i2c";
+		reg = <0x13880000 0x100>;
+		interrupts = <0 60 0>;
+	};
+
+	i2c@13890000 {
+		compatible = "samsung,s3c2440-i2c";
+		reg = <0x13890000 0x100>;
+		interrupts = <0 61 0>;
+	};
+
+	i2c@138A0000 {
+		compatible = "samsung,s3c2440-i2c";
+		reg = <0x138A0000 0x100>;
+		interrupts = <0 62 0>;
+	};
+
+	i2c@138B0000 {
+		compatible = "samsung,s3c2440-i2c";
+		reg = <0x138B0000 0x100>;
+		interrupts = <0 63 0>;
+	};
+
+	i2c@138C0000 {
+		compatible = "samsung,s3c2440-i2c";
+		reg = <0x138C0000 0x100>;
+		interrupts = <0 64 0>;
+	};
+
+	i2c@138D0000 {
+		compatible = "samsung,s3c2440-i2c";
+		reg = <0x138D0000 0x100>;
+		interrupts = <0 65 0>;
+	};
+
+	amba {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		compatible = "arm,amba-bus";
+		interrupt-parent = <&gic>;
+		ranges;
+
+		pdma0: pdma@12680000 {
+			compatible = "arm,pl330", "arm,primecell";
+			reg = <0x12680000 0x1000>;
+			interrupts = <0 35 0>;
+		};
+
+		pdma1: pdma@12690000 {
+			compatible = "arm,pl330", "arm,primecell";
+			reg = <0x12690000 0x1000>;
+			interrupts = <0 36 0>;
+		};
+	};
+
+	gpio-controllers {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		gpio-controller;
+		ranges;
+
+		gpa0: gpio-controller@11400000 {
+			compatible = "samsung,exynos4-gpio";
+			reg = <0x11400000 0x20>;
+			#gpio-cells = <4>;
+		};
+
+		gpa1: gpio-controller@11400020 {
+			compatible = "samsung,exynos4-gpio";
+			reg = <0x11400020 0x20>;
+			#gpio-cells = <4>;
+		};
+
+		gpb: gpio-controller@11400040 {
+			compatible = "samsung,exynos4-gpio";
+			reg = <0x11400040 0x20>;
+			#gpio-cells = <4>;
+		};
+
+		gpc0: gpio-controller@11400060 {
+			compatible = "samsung,exynos4-gpio";
+			reg = <0x11400060 0x20>;
+			#gpio-cells = <4>;
+		};
+
+		gpc1: gpio-controller@11400080 {
+			compatible = "samsung,exynos4-gpio";
+			reg = <0x11400080 0x20>;
+			#gpio-cells = <4>;
+		};
+
+		gpd0: gpio-controller@114000A0 {
+			compatible = "samsung,exynos4-gpio";
+			reg = <0x114000A0 0x20>;
+			#gpio-cells = <4>;
+		};
+
+		gpd1: gpio-controller@114000C0 {
+			compatible = "samsung,exynos4-gpio";
+			reg = <0x114000C0 0x20>;
+			#gpio-cells = <4>;
+		};
+
+		gpe0: gpio-controller@114000E0 {
+			compatible = "samsung,exynos4-gpio";
+			reg = <0x114000E0 0x20>;
+			#gpio-cells = <4>;
+		};
+
+		gpe1: gpio-controller@11400100 {
+			compatible = "samsung,exynos4-gpio";
+			reg = <0x11400100 0x20>;
+			#gpio-cells = <4>;
+		};
+
+		gpe2: gpio-controller@11400120 {
+			compatible = "samsung,exynos4-gpio";
+			reg = <0x11400120 0x20>;
+			#gpio-cells = <4>;
+		};
+
+		gpe3: gpio-controller@11400140 {
+			compatible = "samsung,exynos4-gpio";
+			reg = <0x11400140 0x20>;
+			#gpio-cells = <4>;
+		};
+
+		gpe4: gpio-controller@11400160 {
+			compatible = "samsung,exynos4-gpio";
+			reg = <0x11400160 0x20>;
+			#gpio-cells = <4>;
+		};
+
+		gpf0: gpio-controller@11400180 {
+			compatible = "samsung,exynos4-gpio";
+			reg = <0x11400180 0x20>;
+			#gpio-cells = <4>;
+		};
+
+		gpf1: gpio-controller@114001A0 {
+			compatible = "samsung,exynos4-gpio";
+			reg = <0x114001A0 0x20>;
+			#gpio-cells = <4>;
+		};
+
+		gpf2: gpio-controller@114001C0 {
+			compatible = "samsung,exynos4-gpio";
+			reg = <0x114001C0 0x20>;
+			#gpio-cells = <4>;
+		};
+
+		gpf3: gpio-controller@114001E0 {
+			compatible = "samsung,exynos4-gpio";
+			reg = <0x114001E0 0x20>;
+			#gpio-cells = <4>;
+		};
+
+		gpj0: gpio-controller@11000000 {
+			compatible = "samsung,exynos4-gpio";
+			reg = <0x11000000 0x20>;
+			#gpio-cells = <4>;
+		};
+
+		gpj1: gpio-controller@11000020 {
+			compatible = "samsung,exynos4-gpio";
+			reg = <0x11000020 0x20>;
+			#gpio-cells = <4>;
+		};
+
+		gpk0: gpio-controller@11000040 {
+			compatible = "samsung,exynos4-gpio";
+			reg = <0x11000040 0x20>;
+			#gpio-cells = <4>;
+		};
+
+		gpk1: gpio-controller@11000060 {
+			compatible = "samsung,exynos4-gpio";
+			reg = <0x11000060 0x20>;
+			#gpio-cells = <4>;
+		};
+
+		gpk2: gpio-controller@11000080 {
+			compatible = "samsung,exynos4-gpio";
+			reg = <0x11000080 0x20>;
+			#gpio-cells = <4>;
+		};
+
+		gpk3: gpio-controller@110000A0 {
+			compatible = "samsung,exynos4-gpio";
+			reg = <0x110000A0 0x20>;
+			#gpio-cells = <4>;
+		};
+
+		gpl0: gpio-controller@110000C0 {
+			compatible = "samsung,exynos4-gpio";
+			reg = <0x110000C0 0x20>;
+			#gpio-cells = <4>;
+		};
+
+		gpl1: gpio-controller@110000E0 {
+			compatible = "samsung,exynos4-gpio";
+			reg = <0x110000E0 0x20>;
+			#gpio-cells = <4>;
+		};
+
+		gpl2: gpio-controller@11000100 {
+			compatible = "samsung,exynos4-gpio";
+			reg = <0x11000100 0x20>;
+			#gpio-cells = <4>;
+		};
+
+		gpy0: gpio-controller@11000120 {
+			compatible = "samsung,exynos4-gpio";
+			reg = <0x11000120 0x20>;
+			#gpio-cells = <4>;
+		};
+
+		gpy1: gpio-controller@11000140 {
+			compatible = "samsung,exynos4-gpio";
+			reg = <0x11000140 0x20>;
+			#gpio-cells = <4>;
+		};
+
+		gpy2: gpio-controller@11000160 {
+			compatible = "samsung,exynos4-gpio";
+			reg = <0x11000160 0x20>;
+			#gpio-cells = <4>;
+		};
+
+		gpy3: gpio-controller@11000180 {
+			compatible = "samsung,exynos4-gpio";
+			reg = <0x11000180 0x20>;
+			#gpio-cells = <4>;
+		};
+
+		gpy4: gpio-controller@110001A0 {
+			compatible = "samsung,exynos4-gpio";
+			reg = <0x110001A0 0x20>;
+			#gpio-cells = <4>;
+		};
+
+		gpy5: gpio-controller@110001C0 {
+			compatible = "samsung,exynos4-gpio";
+			reg = <0x110001C0 0x20>;
+			#gpio-cells = <4>;
+		};
+
+		gpy6: gpio-controller@110001E0 {
+			compatible = "samsung,exynos4-gpio";
+			reg = <0x110001E0 0x20>;
+			#gpio-cells = <4>;
+		};
+
+		gpx0: gpio-controller@11000C00 {
+			compatible = "samsung,exynos4-gpio";
+			reg = <0x11000C00 0x20>;
+			#gpio-cells = <4>;
+		};
+
+		gpx1: gpio-controller@11000C20 {
+			compatible = "samsung,exynos4-gpio";
+			reg = <0x11000C20 0x20>;
+			#gpio-cells = <4>;
+		};
+
+		gpx2: gpio-controller@11000C40 {
+			compatible = "samsung,exynos4-gpio";
+			reg = <0x11000C40 0x20>;
+			#gpio-cells = <4>;
+		};
+
+		gpx3: gpio-controller@11000C60 {
+			compatible = "samsung,exynos4-gpio";
+			reg = <0x11000C60 0x20>;
+			#gpio-cells = <4>;
+		};
+
+		gpz: gpio-controller@03860000 {
+			compatible = "samsung,exynos4-gpio";
+			reg = <0x03860000 0x20>;
+			#gpio-cells = <4>;
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/highbank.dts b/arch/arm/boot/dts/highbank.dts
index aeb1a7578fad..305635bd45c0 100644
--- a/arch/arm/boot/dts/highbank.dts
+++ b/arch/arm/boot/dts/highbank.dts
@@ -194,5 +194,17 @@
 			reg = <0xfff3d000 0x1000>;
 			interrupts = <0 92 4>;
 		};
+
+		ethernet@fff50000 {
+			compatible = "calxeda,hb-xgmac";
+			reg = <0xfff50000 0x1000>;
+			interrupts = <0 77 4  0 78 4  0 79 4>;
+		};
+
+		ethernet@fff51000 {
+			compatible = "calxeda,hb-xgmac";
+			reg = <0xfff51000 0x1000>;
+			interrupts = <0 80 4  0 81 4  0 82 4>;
+		};
 	};
 };
diff --git a/arch/arm/boot/dts/imx51-babbage.dts b/arch/arm/boot/dts/imx51-babbage.dts
index f8766af11215..564cb8c19f15 100644
--- a/arch/arm/boot/dts/imx51-babbage.dts
+++ b/arch/arm/boot/dts/imx51-babbage.dts
@@ -35,20 +35,19 @@
 				};
 
 				esdhc@70008000 { /* ESDHC2 */
-					cd-gpios = <&gpio0 6 0>; /* GPIO1_6 */
-					wp-gpios = <&gpio0 5 0>; /* GPIO1_5 */
+					cd-gpios = <&gpio1 6 0>;
+					wp-gpios = <&gpio1 5 0>;
 					status = "okay";
 				};
 
-				uart2: uart@7000c000 { /* UART3 */
+				uart3: uart@7000c000 {
 					fsl,uart-has-rtscts;
 					status = "okay";
 				};
 
 				ecspi@70010000 { /* ECSPI1 */
 					fsl,spi-num-chipselects = <2>;
-					cs-gpios = <&gpio3 24 0>, /* GPIO4_24 */
-						   <&gpio3 25 0>; /* GPIO4_25 */
+					cs-gpios = <&gpio4 24 0>, <&gpio4 25 0>;
 					status = "okay";
 
 					pmic: mc13892@0 {
@@ -57,7 +56,7 @@
 						compatible = "fsl,mc13892";
 						spi-max-frequency = <6000000>;
 						reg = <0>;
-						mc13xxx-irq-gpios = <&gpio0 8 0>; /* GPIO1_8 */
+						mc13xxx-irq-gpios = <&gpio1 8 0>;
 						fsl,mc13xxx-uses-regulator;
 					};
 
@@ -91,12 +90,12 @@
 				reg = <0x73fa8000 0x4000>;
 			};
 
-			uart0: uart@73fbc000 {
+			uart1: uart@73fbc000 {
 				fsl,uart-has-rtscts;
 				status = "okay";
 			};
 
-			uart1: uart@73fc0000 {
+			uart2: uart@73fc0000 {
 				status = "okay";
 			};
 		};
@@ -127,7 +126,7 @@
 
 		power {
 			label = "Power Button";
-			gpios = <&gpio1 21 0>;
+			gpios = <&gpio2 21 0>;
 			linux,code = <116>; /* KEY_POWER */
 			gpio-key,wakeup;
 		};
diff --git a/arch/arm/boot/dts/imx51.dtsi b/arch/arm/boot/dts/imx51.dtsi
index 327ab8e3a4c8..6663986fe1c8 100644
--- a/arch/arm/boot/dts/imx51.dtsi
+++ b/arch/arm/boot/dts/imx51.dtsi
@@ -14,9 +14,9 @@
 
 / {
 	aliases {
-		serial0 = &uart0;
-		serial1 = &uart1;
-		serial2 = &uart2;
+		serial0 = &uart1;
+		serial1 = &uart2;
+		serial2 = &uart3;
 	};
 
 	tzic: tz-interrupt-controller@e0000000 {
@@ -86,7 +86,7 @@
 					status = "disabled";
 				};
 
-				uart2: uart@7000c000 { /* UART3 */
+				uart3: uart@7000c000 {
 					compatible = "fsl,imx51-uart", "fsl,imx21-uart";
 					reg = <0x7000c000 0x4000>;
 					interrupts = <33>;
@@ -117,7 +117,7 @@
 				};
 			};
 
-			gpio0: gpio@73f84000 { /* GPIO1 */
+			gpio1: gpio@73f84000 {
 				compatible = "fsl,imx51-gpio", "fsl,imx31-gpio";
 				reg = <0x73f84000 0x4000>;
 				interrupts = <50 51>;
@@ -127,7 +127,7 @@
 				#interrupt-cells = <1>;
 			};
 
-			gpio1: gpio@73f88000 { /* GPIO2 */
+			gpio2: gpio@73f88000 {
 				compatible = "fsl,imx51-gpio", "fsl,imx31-gpio";
 				reg = <0x73f88000 0x4000>;
 				interrupts = <52 53>;
@@ -137,7 +137,7 @@
 				#interrupt-cells = <1>;
 			};
 
-			gpio2: gpio@73f8c000 { /* GPIO3 */
+			gpio3: gpio@73f8c000 {
 				compatible = "fsl,imx51-gpio", "fsl,imx31-gpio";
 				reg = <0x73f8c000 0x4000>;
 				interrupts = <54 55>;
@@ -147,7 +147,7 @@
 				#interrupt-cells = <1>;
 			};
 
-			gpio3: gpio@73f90000 { /* GPIO4 */
+			gpio4: gpio@73f90000 {
 				compatible = "fsl,imx51-gpio", "fsl,imx31-gpio";
 				reg = <0x73f90000 0x4000>;
 				interrupts = <56 57>;
@@ -171,14 +171,14 @@
 				status = "disabled";
 			};
 
-			uart0: uart@73fbc000 {
+			uart1: uart@73fbc000 {
 				compatible = "fsl,imx51-uart", "fsl,imx21-uart";
 				reg = <0x73fbc000 0x4000>;
 				interrupts = <31>;
 				status = "disabled";
 			};
 
-			uart1: uart@73fc0000 {
+			uart2: uart@73fc0000 {
 				compatible = "fsl,imx51-uart", "fsl,imx21-uart";
 				reg = <0x73fc0000 0x4000>;
 				interrupts = <32>;
diff --git a/arch/arm/boot/dts/imx53-ard.dts b/arch/arm/boot/dts/imx53-ard.dts
index 2ab7f80a0a35..2dccce46ed81 100644
--- a/arch/arm/boot/dts/imx53-ard.dts
+++ b/arch/arm/boot/dts/imx53-ard.dts
@@ -29,8 +29,8 @@
 		aips@50000000 { /* AIPS1 */
 			spba@50000000 {
 				esdhc@50004000 { /* ESDHC1 */
-					cd-gpios = <&gpio0 1 0>; /* GPIO1_1 */
-					wp-gpios = <&gpio0 9 0>; /* GPIO1_9 */
+					cd-gpios = <&gpio1 1 0>;
+					wp-gpios = <&gpio1 9 0>;
 					status = "okay";
 				};
 			};
@@ -44,7 +44,7 @@
 				reg = <0x53fa8000 0x4000>;
 			};
 
-			uart0: uart@53fbc000 { /* UART1 */
+			uart1: uart@53fbc000 {
 				status = "okay";
 			};
 		};
@@ -67,7 +67,7 @@
 			compatible = "smsc,lan9220", "smsc,lan9115";
 			reg = <0xf4000000 0x2000000>;
 			phy-mode = "mii";
-			interrupt-parent = <&gpio1>;
+			interrupt-parent = <&gpio2>;
 			interrupts = <31>;
 			reg-io-width = <4>;
 			smsc,irq-push-pull;
@@ -79,34 +79,34 @@
 
 		home {
 			label = "Home";
-			gpios = <&gpio4 10 0>; /* GPIO5_10 */
+			gpios = <&gpio5 10 0>;
 			linux,code = <102>; /* KEY_HOME */
 			gpio-key,wakeup;
 		};
 
 		back {
 			label = "Back";
-			gpios = <&gpio4 11 0>; /* GPIO5_11 */
+			gpios = <&gpio5 11 0>;
 			linux,code = <158>; /* KEY_BACK */
 			gpio-key,wakeup;
 		};
 
 		program {
 			label = "Program";
-			gpios = <&gpio4 12 0>; /* GPIO5_12 */
+			gpios = <&gpio5 12 0>;
 			linux,code = <362>; /* KEY_PROGRAM */
 			gpio-key,wakeup;
 		};
 
 		volume-up {
 			label = "Volume Up";
-			gpios = <&gpio4 13 0>; /* GPIO5_13 */
+			gpios = <&gpio5 13 0>;
 			linux,code = <115>; /* KEY_VOLUMEUP */
 		};
 
 		volume-down {
 			label = "Volume Down";
-			gpios = <&gpio3 0 0>; /* GPIO4_0 */
+			gpios = <&gpio4 0 0>;
 			linux,code = <114>; /* KEY_VOLUMEDOWN */
 		};
 	};
diff --git a/arch/arm/boot/dts/imx53-evk.dts b/arch/arm/boot/dts/imx53-evk.dts
index 3f3a88185ff8..5bac4aa4800b 100644
--- a/arch/arm/boot/dts/imx53-evk.dts
+++ b/arch/arm/boot/dts/imx53-evk.dts
@@ -29,15 +29,14 @@
 		aips@50000000 { /* AIPS1 */
 			spba@50000000 {
 				esdhc@50004000 { /* ESDHC1 */
-					cd-gpios = <&gpio2 13 0>; /* GPIO3_13 */
-					wp-gpios = <&gpio2 14 0>; /* GPIO3_14 */
+					cd-gpios = <&gpio3 13 0>;
+					wp-gpios = <&gpio3 14 0>;
 					status = "okay";
 				};
 
 				ecspi@50010000 { /* ECSPI1 */
 					fsl,spi-num-chipselects = <2>;
-					cs-gpios = <&gpio1 30 0>, /* GPIO2_30 */
-						   <&gpio2 19 0>; /* GPIO3_19 */
+					cs-gpios = <&gpio2 30 0>, <&gpio3 19 0>;
 					status = "okay";
 
 					flash: at45db321d@1 {
@@ -61,8 +60,8 @@
 				};
 
 				esdhc@50020000 { /* ESDHC3 */
-					cd-gpios = <&gpio2 11 0>; /* GPIO3_11 */
-					wp-gpios = <&gpio2 12 0>; /* GPIO3_12 */
+					cd-gpios = <&gpio3 11 0>;
+					wp-gpios = <&gpio3 12 0>;
 					status = "okay";
 				};
 			};
@@ -76,7 +75,7 @@
 				reg = <0x53fa8000 0x4000>;
 			};
 
-			uart0: uart@53fbc000 { /* UART1 */
+			uart1: uart@53fbc000 {
 				status = "okay";
 			};
 		};
@@ -102,7 +101,7 @@
 
 			fec@63fec000 {
 				phy-mode = "rmii";
-				phy-reset-gpios = <&gpio6 6 0>; /* GPIO7_6 */
+				phy-reset-gpios = <&gpio7 6 0>;
 				status = "okay";
 			};
 		};
@@ -113,7 +112,7 @@
 
 		green {
 			label = "Heartbeat";
-			gpios = <&gpio6 7 0>; /* GPIO7_7 */
+			gpios = <&gpio7 7 0>;
 			linux,default-trigger = "heartbeat";
 		};
 	};
diff --git a/arch/arm/boot/dts/imx53-qsb.dts b/arch/arm/boot/dts/imx53-qsb.dts
index ae6de6d0c3f1..5c57c8672c36 100644
--- a/arch/arm/boot/dts/imx53-qsb.dts
+++ b/arch/arm/boot/dts/imx53-qsb.dts
@@ -29,13 +29,13 @@
 		aips@50000000 { /* AIPS1 */
 			spba@50000000 {
 				esdhc@50004000 { /* ESDHC1 */
-					cd-gpios = <&gpio2 13 0>; /* GPIO3_13 */
+					cd-gpios = <&gpio3 13 0>;
 					status = "okay";
 				};
 
 				esdhc@50020000 { /* ESDHC3 */
-					cd-gpios = <&gpio2 11 0>; /* GPIO3_11 */
-					wp-gpios = <&gpio2 12 0>; /* GPIO3_12 */
+					cd-gpios = <&gpio3 11 0>;
+					wp-gpios = <&gpio3 12 0>;
 					status = "okay";
 				};
 			};
@@ -49,7 +49,7 @@
 				reg = <0x53fa8000 0x4000>;
 			};
 
-			uart0: uart@53fbc000 { /* UART1 */
+			uart1: uart@53fbc000 {
 				status = "okay";
 			};
 		};
@@ -84,7 +84,7 @@
 
 			fec@63fec000 {
 				phy-mode = "rmii";
-				phy-reset-gpios = <&gpio6 6 0>; /* GPIO7_6 */
+				phy-reset-gpios = <&gpio7 6 0>;
 				status = "okay";
 			};
 		};
@@ -95,20 +95,20 @@
 
 		power {
 			label = "Power Button";
-			gpios = <&gpio0 8 0>; /* GPIO1_8 */
+			gpios = <&gpio1 8 0>;
 			linux,code = <116>; /* KEY_POWER */
 			gpio-key,wakeup;
 		};
 
 		volume-up {
 			label = "Volume Up";
-			gpios = <&gpio1 14 0>; /* GPIO2_14 */
+			gpios = <&gpio2 14 0>;
 			linux,code = <115>; /* KEY_VOLUMEUP */
 		};
 
 		volume-down {
 			label = "Volume Down";
-			gpios = <&gpio1 15 0>; /* GPIO2_15 */
+			gpios = <&gpio2 15 0>;
 			linux,code = <114>; /* KEY_VOLUMEDOWN */
 		};
 	};
@@ -118,7 +118,7 @@
 
 		user {
 			label = "Heartbeat";
-			gpios = <&gpio6 7 0>; /* GPIO7_7 */
+			gpios = <&gpio7 7 0>;
 			linux,default-trigger = "heartbeat";
 		};
 	};
diff --git a/arch/arm/boot/dts/imx53-smd.dts b/arch/arm/boot/dts/imx53-smd.dts
index b1c062eea715..c7ee86c2dfb5 100644
--- a/arch/arm/boot/dts/imx53-smd.dts
+++ b/arch/arm/boot/dts/imx53-smd.dts
@@ -29,8 +29,8 @@
 		aips@50000000 { /* AIPS1 */
 			spba@50000000 {
 				esdhc@50004000 { /* ESDHC1 */
-					cd-gpios = <&gpio2 13 0>; /* GPIO3_13 */
-					wp-gpios = <&gpio3 11 0>; /* GPIO4_11 */
+					cd-gpios = <&gpio3 13 0>;
+					wp-gpios = <&gpio4 11 0>;
 					status = "okay";
 				};
 
@@ -39,15 +39,14 @@
 					status = "okay";
 				};
 
-				uart2: uart@5000c000 { /* UART3 */
+				uart3: uart@5000c000 {
 					fsl,uart-has-rtscts;
 					status = "okay";
 				};
 
 				ecspi@50010000 { /* ECSPI1 */
 					fsl,spi-num-chipselects = <2>;
-					cs-gpios = <&gpio1 30 0>, /* GPIO2_30 */
-						   <&gpio2 19 0>; /* GPIO3_19 */
+					cs-gpios = <&gpio2 30 0>, <&gpio3 19 0>;
 					status = "okay";
 
 					zigbee: mc1323@0 {
@@ -91,11 +90,11 @@
 				reg = <0x53fa8000 0x4000>;
 			};
 
-			uart0: uart@53fbc000 { /* UART1 */
+			uart1: uart@53fbc000 {
 				status = "okay";
 			};
 
-			uart1: uart@53fc0000 { /* UART2 */
+			uart2: uart@53fc0000 {
 				status = "okay";
 			};
 		};
@@ -145,7 +144,7 @@
 
 			fec@63fec000 {
 				phy-mode = "rmii";
-				phy-reset-gpios = <&gpio6 6 0>; /* GPIO7_6 */
+				phy-reset-gpios = <&gpio7 6 0>;
 				status = "okay";
 			};
 		};
@@ -156,13 +155,13 @@
 
 		volume-up {
 			label = "Volume Up";
-			gpios = <&gpio1 14 0>; /* GPIO2_14 */
+			gpios = <&gpio2 14 0>;
 			linux,code = <115>; /* KEY_VOLUMEUP */
 		};
 
 		volume-down {
 			label = "Volume Down";
-			gpios = <&gpio1 15 0>; /* GPIO2_15 */
+			gpios = <&gpio2 15 0>;
 			linux,code = <114>; /* KEY_VOLUMEDOWN */
 		};
 	};
diff --git a/arch/arm/boot/dts/imx53.dtsi b/arch/arm/boot/dts/imx53.dtsi
index 099cd84ee372..5dd91b942c91 100644
--- a/arch/arm/boot/dts/imx53.dtsi
+++ b/arch/arm/boot/dts/imx53.dtsi
@@ -14,11 +14,11 @@
 
 / {
 	aliases {
-		serial0 = &uart0;
-		serial1 = &uart1;
-		serial2 = &uart2;
-		serial3 = &uart3;
-		serial4 = &uart4;
+		serial0 = &uart1;
+		serial1 = &uart2;
+		serial2 = &uart3;
+		serial3 = &uart4;
+		serial4 = &uart5;
 	};
 
 	tzic: tz-interrupt-controller@0fffc000 {
@@ -88,7 +88,7 @@
 					status = "disabled";
 				};
 
-				uart2: uart@5000c000 { /* UART3 */
+				uart3: uart@5000c000 {
 					compatible = "fsl,imx53-uart", "fsl,imx21-uart";
 					reg = <0x5000c000 0x4000>;
 					interrupts = <33>;
@@ -119,7 +119,7 @@
 				};
 			};
 
-			gpio0: gpio@53f84000 { /* GPIO1 */
+			gpio1: gpio@53f84000 {
 				compatible = "fsl,imx53-gpio", "fsl,imx31-gpio";
 				reg = <0x53f84000 0x4000>;
 				interrupts = <50 51>;
@@ -129,7 +129,7 @@
 				#interrupt-cells = <1>;
 			};
 
-			gpio1: gpio@53f88000 { /* GPIO2 */
+			gpio2: gpio@53f88000 {
 				compatible = "fsl,imx53-gpio", "fsl,imx31-gpio";
 				reg = <0x53f88000 0x4000>;
 				interrupts = <52 53>;
@@ -139,7 +139,7 @@
 				#interrupt-cells = <1>;
 			};
 
-			gpio2: gpio@53f8c000 { /* GPIO3 */
+			gpio3: gpio@53f8c000 {
 				compatible = "fsl,imx53-gpio", "fsl,imx31-gpio";
 				reg = <0x53f8c000 0x4000>;
 				interrupts = <54 55>;
@@ -149,7 +149,7 @@
 				#interrupt-cells = <1>;
 			};
 
-			gpio3: gpio@53f90000 { /* GPIO4 */
+			gpio4: gpio@53f90000 {
 				compatible = "fsl,imx53-gpio", "fsl,imx31-gpio";
 				reg = <0x53f90000 0x4000>;
 				interrupts = <56 57>;
@@ -173,21 +173,21 @@
 				status = "disabled";
 			};
 
-			uart0: uart@53fbc000 { /* UART1 */
+			uart1: uart@53fbc000 {
 				compatible = "fsl,imx53-uart", "fsl,imx21-uart";
 				reg = <0x53fbc000 0x4000>;
 				interrupts = <31>;
 				status = "disabled";
 			};
 
-			uart1: uart@53fc0000 { /* UART2 */
+			uart2: uart@53fc0000 {
 				compatible = "fsl,imx53-uart", "fsl,imx21-uart";
 				reg = <0x53fc0000 0x4000>;
 				interrupts = <32>;
 				status = "disabled";
 			};
 
-			gpio4: gpio@53fdc000 { /* GPIO5 */
+			gpio5: gpio@53fdc000 {
 				compatible = "fsl,imx53-gpio", "fsl,imx31-gpio";
 				reg = <0x53fdc000 0x4000>;
 				interrupts = <103 104>;
@@ -197,7 +197,7 @@
 				#interrupt-cells = <1>;
 			};
 
-			gpio5: gpio@53fe0000 { /* GPIO6 */
+			gpio6: gpio@53fe0000 {
 				compatible = "fsl,imx53-gpio", "fsl,imx31-gpio";
 				reg = <0x53fe0000 0x4000>;
 				interrupts = <105 106>;
@@ -207,7 +207,7 @@
 				#interrupt-cells = <1>;
 			};
 
-			gpio6: gpio@53fe4000 { /* GPIO7 */
+			gpio7: gpio@53fe4000 {
 				compatible = "fsl,imx53-gpio", "fsl,imx31-gpio";
 				reg = <0x53fe4000 0x4000>;
 				interrupts = <107 108>;
@@ -226,7 +226,7 @@
 				status = "disabled";
 			};
 
-			uart3: uart@53ff0000 { /* UART4 */
+			uart4: uart@53ff0000 {
 				compatible = "fsl,imx53-uart", "fsl,imx21-uart";
 				reg = <0x53ff0000 0x4000>;
 				interrupts = <13>;
@@ -241,7 +241,7 @@
 			reg = <0x60000000 0x10000000>;
 			ranges;
 
-			uart4: uart@63f90000 { /* UART5 */
+			uart5: uart@63f90000 {
 				compatible = "fsl,imx53-uart", "fsl,imx21-uart";
 				reg = <0x63f90000 0x4000>;
 				interrupts = <86>;
diff --git a/arch/arm/boot/dts/imx6q-sabreauto.dts b/arch/arm/boot/dts/imx6q-arm2.dts
index 072974e443f2..c3977e0478b9 100644
--- a/arch/arm/boot/dts/imx6q-sabreauto.dts
+++ b/arch/arm/boot/dts/imx6q-arm2.dts
@@ -14,8 +14,8 @@
 /include/ "imx6q.dtsi"
 
 / {
-	model = "Freescale i.MX6 Quad SABRE Automotive Board";
-	compatible = "fsl,imx6q-sabreauto", "fsl,imx6q";
+	model = "Freescale i.MX6 Quad Armadillo2 Board";
+	compatible = "fsl,imx6q-arm2", "fsl,imx6q";
 
 	chosen {
 		bootargs = "console=ttymxc0,115200 root=/dev/mmcblk3p3 rootwait";
@@ -34,8 +34,8 @@
 			};
 
 			usdhc@02198000 { /* uSDHC3 */
-				cd-gpios = <&gpio5 11 0>; /* GPIO6_11 */
-				wp-gpios = <&gpio5 14 0>; /* GPIO6_14 */
+				cd-gpios = <&gpio6 11 0>;
+				wp-gpios = <&gpio6 14 0>;
 				status = "okay";
 			};
 
@@ -44,7 +44,7 @@
 				status = "okay";
 			};
 
-			uart3: uart@021f0000 { /* UART4 */
+			uart4: uart@021f0000 {
 				status = "okay";
 			};
 		};
@@ -55,7 +55,7 @@
 
 		debug-led {
 			label = "Heartbeat";
-			gpios = <&gpio2 25 0>; /* GPIO3_25 */
+			gpios = <&gpio3 25 0>;
 			linux,default-trigger = "heartbeat";
 		};
 	};
diff --git a/arch/arm/boot/dts/imx6q-sabrelite.dts b/arch/arm/boot/dts/imx6q-sabrelite.dts
new file mode 100644
index 000000000000..08d920de7286
--- /dev/null
+++ b/arch/arm/boot/dts/imx6q-sabrelite.dts
@@ -0,0 +1,49 @@
+/*
+ * Copyright 2011 Freescale Semiconductor, Inc.
+ * Copyright 2011 Linaro Ltd.
+ *
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+/dts-v1/;
+/include/ "imx6q.dtsi"
+
+/ {
+	model = "Freescale i.MX6 Quad SABRE Lite Board";
+	compatible = "fsl,imx6q-sabrelite", "fsl,imx6q";
+
+	memory {
+		reg = <0x10000000 0x40000000>;
+	};
+
+	soc {
+		aips-bus@02100000 { /* AIPS2 */
+			enet@02188000 {
+				phy-mode = "rgmii";
+				phy-reset-gpios = <&gpio3 23 0>;
+				status = "okay";
+			};
+
+			usdhc@02198000 { /* uSDHC3 */
+				cd-gpios = <&gpio7 0 0>;
+				wp-gpios = <&gpio7 1 0>;
+				status = "okay";
+			};
+
+			usdhc@0219c000 { /* uSDHC4 */
+				cd-gpios = <&gpio2 6 0>;
+				wp-gpios = <&gpio2 7 0>;
+				status = "okay";
+			};
+
+			uart2: uart@021e8000 {
+				status = "okay";
+			};
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/imx6q.dtsi b/arch/arm/boot/dts/imx6q.dtsi
index 7dda599558cc..263e8f3664b5 100644
--- a/arch/arm/boot/dts/imx6q.dtsi
+++ b/arch/arm/boot/dts/imx6q.dtsi
@@ -14,11 +14,11 @@
 
 / {
 	aliases {
-		serial0 = &uart0;
-		serial1 = &uart1;
-		serial2 = &uart2;
-		serial3 = &uart3;
-		serial4 = &uart4;
+		serial0 = &uart1;
+		serial1 = &uart2;
+		serial2 = &uart3;
+		serial3 = &uart4;
+		serial4 = &uart5;
 	};
 
 	cpus {
@@ -165,7 +165,7 @@
 					status = "disabled";
 				};
 
-				uart0: uart@02020000 { /* UART1 */
+				uart1: uart@02020000 {
 					compatible = "fsl,imx6q-uart", "fsl,imx21-uart";
 					reg = <0x02020000 0x4000>;
 					interrupts = <0 26 0x04>;
@@ -247,7 +247,7 @@
 				interrupts = <0 55 0x04>;
 			};
 
-			gpio0: gpio@0209c000 { /* GPIO1 */
+			gpio1: gpio@0209c000 {
 				compatible = "fsl,imx6q-gpio", "fsl,imx31-gpio";
 				reg = <0x0209c000 0x4000>;
 				interrupts = <0 66 0x04 0 67 0x04>;
@@ -257,7 +257,7 @@
 				#interrupt-cells = <1>;
 			};
 
-			gpio1: gpio@020a0000 { /* GPIO2 */
+			gpio2: gpio@020a0000 {
 				compatible = "fsl,imx6q-gpio", "fsl,imx31-gpio";
 				reg = <0x020a0000 0x4000>;
 				interrupts = <0 68 0x04 0 69 0x04>;
@@ -267,7 +267,7 @@
 				#interrupt-cells = <1>;
 			};
 
-			gpio2: gpio@020a4000 { /* GPIO3 */
+			gpio3: gpio@020a4000 {
 				compatible = "fsl,imx6q-gpio", "fsl,imx31-gpio";
 				reg = <0x020a4000 0x4000>;
 				interrupts = <0 70 0x04 0 71 0x04>;
@@ -277,7 +277,7 @@
 				#interrupt-cells = <1>;
 			};
 
-			gpio3: gpio@020a8000 { /* GPIO4 */
+			gpio4: gpio@020a8000 {
 				compatible = "fsl,imx6q-gpio", "fsl,imx31-gpio";
 				reg = <0x020a8000 0x4000>;
 				interrupts = <0 72 0x04 0 73 0x04>;
@@ -287,7 +287,7 @@
 				#interrupt-cells = <1>;
 			};
 
-			gpio4: gpio@020ac000 { /* GPIO5 */
+			gpio5: gpio@020ac000 {
 				compatible = "fsl,imx6q-gpio", "fsl,imx31-gpio";
 				reg = <0x020ac000 0x4000>;
 				interrupts = <0 74 0x04 0 75 0x04>;
@@ -297,7 +297,7 @@
 				#interrupt-cells = <1>;
 			};
 
-			gpio5: gpio@020b0000 { /* GPIO6 */
+			gpio6: gpio@020b0000 {
 				compatible = "fsl,imx6q-gpio", "fsl,imx31-gpio";
 				reg = <0x020b0000 0x4000>;
 				interrupts = <0 76 0x04 0 77 0x04>;
@@ -307,7 +307,7 @@
 				#interrupt-cells = <1>;
 			};
 
-			gpio6: gpio@020b4000 { /* GPIO7 */
+			gpio7: gpio@020b4000 {
 				compatible = "fsl,imx6q-gpio", "fsl,imx31-gpio";
 				reg = <0x020b4000 0x4000>;
 				interrupts = <0 78 0x04 0 79 0x04>;
@@ -543,28 +543,28 @@
 				interrupts = <0 18 0x04>;
 			};
 
-			uart1: uart@021e8000 { /* UART2 */
+			uart2: uart@021e8000 {
 				compatible = "fsl,imx6q-uart", "fsl,imx21-uart";
 				reg = <0x021e8000 0x4000>;
 				interrupts = <0 27 0x04>;
 				status = "disabled";
 			};
 
-			uart2: uart@021ec000 { /* UART3 */
+			uart3: uart@021ec000 {
 				compatible = "fsl,imx6q-uart", "fsl,imx21-uart";
 				reg = <0x021ec000 0x4000>;
 				interrupts = <0 28 0x04>;
 				status = "disabled";
 			};
 
-			uart3: uart@021f0000 { /* UART4 */
+			uart4: uart@021f0000 {
 				compatible = "fsl,imx6q-uart", "fsl,imx21-uart";
 				reg = <0x021f0000 0x4000>;
 				interrupts = <0 29 0x04>;
 				status = "disabled";
 			};
 
-			uart4: uart@021f4000 { /* UART5 */
+			uart5: uart@021f4000 {
 				compatible = "fsl,imx6q-uart", "fsl,imx21-uart";
 				reg = <0x021f4000 0x4000>;
 				interrupts = <0 30 0x04>;
diff --git a/arch/arm/boot/dts/omap2.dtsi b/arch/arm/boot/dts/omap2.dtsi
new file mode 100644
index 000000000000..f2ab4ea7cc0e
--- /dev/null
+++ b/arch/arm/boot/dts/omap2.dtsi
@@ -0,0 +1,67 @@
+/*
+ * Device Tree Source for OMAP2 SoC
+ *
+ * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2.  This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+/include/ "skeleton.dtsi"
+
+/ {
+	compatible = "ti,omap2430", "ti,omap2420", "ti,omap2";
+
+	aliases {
+		serial0 = &uart1;
+		serial1 = &uart2;
+		serial2 = &uart3;
+	};
+
+	cpus {
+		cpu@0 {
+			compatible = "arm,arm1136jf-s";
+		};
+	};
+
+	soc {
+		compatible = "ti,omap-infra";
+		mpu {
+			compatible = "ti,omap2-mpu";
+			ti,hwmods = "mpu";
+		};
+	};
+
+	ocp {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+		ti,hwmods = "l3_main";
+
+		intc: interrupt-controller@1 {
+			compatible = "ti,omap2-intc";
+			interrupt-controller;
+			#interrupt-cells = <1>;
+		};
+
+		uart1: serial@4806a000 {
+			compatible = "ti,omap2-uart";
+			ti,hwmods = "uart1";
+			clock-frequency = <48000000>;
+		};
+
+		uart2: serial@4806c000 {
+			compatible = "ti,omap2-uart";
+			ti,hwmods = "uart2";
+			clock-frequency = <48000000>;
+		};
+
+		uart3: serial@4806e000 {
+			compatible = "ti,omap2-uart";
+			ti,hwmods = "uart3";
+			clock-frequency = <48000000>;
+		};
+	};
+};
diff --git a/arch/arm/boot/dts/omap3.dtsi b/arch/arm/boot/dts/omap3.dtsi
index d202bb5ec7ef..216c3317461d 100644
--- a/arch/arm/boot/dts/omap3.dtsi
+++ b/arch/arm/boot/dts/omap3.dtsi
@@ -13,6 +13,13 @@
 / {
 	compatible = "ti,omap3430", "ti,omap3";
 
+	aliases {
+		serial0 = &uart1;
+		serial1 = &uart2;
+		serial2 = &uart3;
+		serial3 = &uart4;
+	};
+
 	cpus {
 		cpu@0 {
 			compatible = "arm,cortex-a8";
@@ -59,5 +66,29 @@
 			interrupt-controller;
 			#interrupt-cells = <1>;
 		};
+
+		uart1: serial@0x4806a000 {
+			compatible = "ti,omap3-uart";
+			ti,hwmods = "uart1";
+			clock-frequency = <48000000>;
+		};
+
+		uart2: serial@0x4806c000 {
+			compatible = "ti,omap3-uart";
+			ti,hwmods = "uart2";
+			clock-frequency = <48000000>;
+		};
+
+		uart3: serial@0x49020000 {
+			compatible = "ti,omap3-uart";
+			ti,hwmods = "uart3";
+			clock-frequency = <48000000>;
+		};
+
+		uart4: serial@0x49042000 {
+			compatible = "ti,omap3-uart";
+			ti,hwmods = "uart4";
+			clock-frequency = <48000000>;
+		};
 	};
 };
diff --git a/arch/arm/boot/dts/omap4.dtsi b/arch/arm/boot/dts/omap4.dtsi
index 4c61c829043a..e8fe75fac7c5 100644
--- a/arch/arm/boot/dts/omap4.dtsi
+++ b/arch/arm/boot/dts/omap4.dtsi
@@ -21,6 +21,10 @@
 	interrupt-parent = <&gic>;
 
 	aliases {
+		serial0 = &uart1;
+		serial1 = &uart2;
+		serial2 = &uart3;
+		serial3 = &uart4;
 	};
 
 	cpus {
@@ -99,5 +103,29 @@
 			reg = <0x48241000 0x1000>,
 			      <0x48240100 0x0100>;
 		};
+
+		uart1: serial@0x4806a000 {
+			compatible = "ti,omap4-uart";
+			ti,hwmods = "uart1";
+			clock-frequency = <48000000>;
+		};
+
+		uart2: serial@0x4806c000 {
+			compatible = "ti,omap4-uart";
+			ti,hwmods = "uart2";
+			clock-frequency = <48000000>;
+		};
+
+		uart3: serial@0x48020000 {
+			compatible = "ti,omap4-uart";
+			ti,hwmods = "uart3";
+			clock-frequency = <48000000>;
+		};
+
+		uart4: serial@0x4806e000 {
+			compatible = "ti,omap4-uart";
+			ti,hwmods = "uart4";
+			clock-frequency = <48000000>;
+		};
 	};
 };
diff --git a/arch/arm/boot/dts/tegra-cardhu.dts b/arch/arm/boot/dts/tegra-cardhu.dts
new file mode 100644
index 000000000000..70c41fc897d7
--- /dev/null
+++ b/arch/arm/boot/dts/tegra-cardhu.dts
@@ -0,0 +1,36 @@
+/dts-v1/;
+
+/include/ "tegra30.dtsi"
+
+/ {
+	model = "NVIDIA Tegra30 Cardhu evaluation board";
+	compatible = "nvidia,cardhu", "nvidia,tegra30";
+
+	memory {
+		reg = < 0x80000000 0x40000000 >;
+	};
+
+	serial@70006000 {
+		clock-frequency = < 408000000 >;
+	};
+
+	i2c@7000c000 {
+		clock-frequency = <100000>;
+	};
+
+	i2c@7000c400 {
+		clock-frequency = <100000>;
+	};
+
+	i2c@7000c500 {
+		clock-frequency = <100000>;
+	};
+
+	i2c@7000c700 {
+		clock-frequency = <100000>;
+	};
+
+	i2c@7000d000 {
+		clock-frequency = <100000>;
+	};
+};
diff --git a/arch/arm/boot/dts/tegra-harmony.dts b/arch/arm/boot/dts/tegra-harmony.dts
index 0e225b86b652..80afa1b70b80 100644
--- a/arch/arm/boot/dts/tegra-harmony.dts
+++ b/arch/arm/boot/dts/tegra-harmony.dts
@@ -1,16 +1,11 @@
 /dts-v1/;
 
-/memreserve/ 0x1c000000 0x04000000;
 /include/ "tegra20.dtsi"
 
 / {
 	model = "NVIDIA Tegra2 Harmony evaluation board";
 	compatible = "nvidia,harmony", "nvidia,tegra20";
 
-	chosen {
-		bootargs = "vmalloc=192M video=tegrafb console=ttyS0,115200n8 root=/dev/mmcblk0p2 rw rootwait";
-	};
-
 	memory@0 {
 		reg = < 0x00000000 0x40000000 >;
 	};
@@ -52,16 +47,40 @@
 		ext-mic-en-gpios = <&gpio 185 0>;
 	};
 
+	serial@70006000 {
+		status = "disable";
+	};
+
+	serial@70006040 {
+		status = "disable";
+	};
+
+	serial@70006200 {
+		status = "disable";
+	};
+
 	serial@70006300 {
 		clock-frequency = < 216000000 >;
 	};
 
+	serial@70006400 {
+		status = "disable";
+	};
+
+	sdhci@c8000000 {
+		status = "disable";
+	};
+
 	sdhci@c8000200 {
 		cd-gpios = <&gpio 69 0>; /* gpio PI5 */
 		wp-gpios = <&gpio 57 0>; /* gpio PH1 */
 		power-gpios = <&gpio 155 0>; /* gpio PT3 */
 	};
 
+	sdhci@c8000400 {
+		status = "disable";
+	};
+
 	sdhci@c8000600 {
 		cd-gpios = <&gpio 58 0>; /* gpio PH2 */
 		wp-gpios = <&gpio 59 0>; /* gpio PH3 */
diff --git a/arch/arm/boot/dts/tegra-paz00.dts b/arch/arm/boot/dts/tegra-paz00.dts
new file mode 100644
index 000000000000..1a1d7023b69b
--- /dev/null
+++ b/arch/arm/boot/dts/tegra-paz00.dts
@@ -0,0 +1,77 @@
+/dts-v1/;
+
+/include/ "tegra20.dtsi"
+
+/ {
+	model = "Toshiba AC100 / Dynabook AZ";
+	compatible = "compal,paz00", "nvidia,tegra20";
+
+	memory@0 {
+		reg = <0x00000000 0x20000000>;
+	};
+
+	i2c@7000c000 {
+		clock-frequency = <400000>;
+	};
+
+	i2c@7000c400 {
+		clock-frequency = <400000>;
+	};
+
+	i2c@7000c500 {
+		status = "disable";
+	};
+
+	nvec@7000c500 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "nvidia,nvec";
+		reg = <0x7000C500 0x100>;
+		interrupts = <0 92 0x04>;
+		clock-frequency = <80000>;
+		request-gpios = <&gpio 170 0>;
+		slave-addr = <138>;
+	};
+
+	i2c@7000d000 {
+		clock-frequency = <400000>;
+	};
+
+	serial@70006000 {
+		clock-frequency = <216000000>;
+	};
+
+	serial@70006040 {
+		status = "disable";
+	};
+
+	serial@70006200 {
+		status = "disable";
+	};
+
+	serial@70006300 {
+		clock-frequency = <216000000>;
+	};
+
+	serial@70006400 {
+		status = "disable";
+	};
+
+	sdhci@c8000000 {
+		cd-gpios = <&gpio 173 0>; /* gpio PV5 */
+		wp-gpios = <&gpio 57 0>;  /* gpio PH1 */
+		power-gpios = <&gpio 155 0>; /* gpio PT3 */
+	};
+
+	sdhci@c8000200 {
+		status = "disable";
+	};
+
+	sdhci@c8000400 {
+		status = "disable";
+	};
+
+	sdhci@c8000600 {
+		support-8bit;
+	};
+};
diff --git a/arch/arm/boot/dts/tegra-seaboard.dts b/arch/arm/boot/dts/tegra-seaboard.dts
index a72299b8e668..b55a02e34ba7 100644
--- a/arch/arm/boot/dts/tegra-seaboard.dts
+++ b/arch/arm/boot/dts/tegra-seaboard.dts
@@ -1,25 +1,65 @@
 /dts-v1/;
 
-/memreserve/ 0x1c000000 0x04000000;
 /include/ "tegra20.dtsi"
 
 / {
 	model = "NVIDIA Seaboard";
 	compatible = "nvidia,seaboard", "nvidia,tegra20";
 
-	chosen {
-		bootargs = "vmalloc=192M video=tegrafb console=ttyS0,115200n8 root=/dev/mmcblk1p3 rw rootwait";
-	};
-
 	memory {
 		device_type = "memory";
 		reg = < 0x00000000 0x40000000 >;
 	};
 
+	i2c@7000c000 {
+		clock-frequency = <400000>;
+	};
+
+	i2c@7000c400 {
+		clock-frequency = <400000>;
+	};
+
+	i2c@7000c500 {
+		clock-frequency = <400000>;
+	};
+
+	i2c@7000d000 {
+		clock-frequency = <400000>;
+
+		adt7461@4c {
+			compatible = "adt7461";
+			reg = <0x4c>;
+		};
+	};
+
+	serial@70006000 {
+		status = "disable";
+	};
+
+	serial@70006040 {
+		status = "disable";
+	};
+
+	serial@70006200 {
+		status = "disable";
+	};
+
 	serial@70006300 {
 		clock-frequency = < 216000000 >;
 	};
 
+	serial@70006400 {
+		status = "disable";
+	};
+
+	sdhci@c8000000 {
+		status = "disable";
+	};
+
+	sdhci@c8000200 {
+		status = "disable";
+	};
+
 	sdhci@c8000400 {
 		cd-gpios = <&gpio 69 0>; /* gpio PI5 */
 		wp-gpios = <&gpio 57 0>; /* gpio PH1 */
@@ -29,4 +69,28 @@
 	sdhci@c8000600 {
 		support-8bit;
 	};
+
+	usb@c5000000 {
+		nvidia,vbus-gpio = <&gpio 24 0>; /* PD0 */
+	};
+
+	gpio-keys {
+		compatible = "gpio-keys";
+
+		power {
+			label = "Power";
+			gpios = <&gpio 170 1>; /* gpio PV2, active low */
+			linux,code = <116>; /* KEY_POWER */
+			gpio-key,wakeup;
+		};
+
+		lid {
+			label = "Lid";
+			gpios = <&gpio 23 0>; /* gpio PC7 */
+			linux,input-type = <5>; /* EV_SW */
+			linux,code = <0>; /* SW_LID */
+			debounce-interval = <1>;
+			gpio-key,wakeup;
+		};
+	};
 };
diff --git a/arch/arm/boot/dts/tegra-trimslice.dts b/arch/arm/boot/dts/tegra-trimslice.dts
new file mode 100644
index 000000000000..3b3ee7db99f3
--- /dev/null
+++ b/arch/arm/boot/dts/tegra-trimslice.dts
@@ -0,0 +1,65 @@
+/dts-v1/;
+
+/include/ "tegra20.dtsi"
+
+/ {
+	model = "Compulab TrimSlice board";
+	compatible = "compulab,trimslice", "nvidia,tegra20";
+
+	memory@0 {
+		reg = < 0x00000000 0x40000000 >;
+	};
+
+	i2c@7000c000 {
+		clock-frequency = <400000>;
+	};
+
+	i2c@7000c400 {
+		clock-frequency = <400000>;
+	};
+
+	i2c@7000c500 {
+		clock-frequency = <400000>;
+	};
+
+	i2c@7000d000 {
+		status = "disable";
+	};
+
+	serial@70006000 {
+		clock-frequency = < 216000000 >;
+	};
+
+	serial@70006040 {
+		status = "disable";
+	};
+
+	serial@70006200 {
+		status = "disable";
+	};
+
+	serial@70006300 {
+		status = "disable";
+	};
+
+	serial@70006400 {
+		status = "disable";
+	};
+
+	sdhci@c8000000 {
+		status = "disable";
+	};
+
+	sdhci@c8000200 {
+		status = "disable";
+	};
+
+	sdhci@c8000400 {
+		status = "disable";
+	};
+
+	sdhci@c8000600 {
+		cd-gpios = <&gpio 121 0>;
+		wp-gpios = <&gpio 122 0>;
+	};
+};
diff --git a/arch/arm/boot/dts/tegra-ventana.dts b/arch/arm/boot/dts/tegra-ventana.dts
index 3f9abd6b6964..c7d3b87f29df 100644
--- a/arch/arm/boot/dts/tegra-ventana.dts
+++ b/arch/arm/boot/dts/tegra-ventana.dts
@@ -1,24 +1,59 @@
 /dts-v1/;
 
-/memreserve/ 0x1c000000 0x04000000;
 /include/ "tegra20.dtsi"
 
 / {
 	model = "NVIDIA Tegra2 Ventana evaluation board";
 	compatible = "nvidia,ventana", "nvidia,tegra20";
 
-	chosen {
-		bootargs = "vmalloc=192M video=tegrafb console=ttyS0,115200n8 root=/dev/ram rdinit=/sbin/init";
-	};
-
 	memory {
 		reg = < 0x00000000 0x40000000 >;
 	};
 
+	i2c@7000c000 {
+		clock-frequency = <400000>;
+	};
+
+	i2c@7000c400 {
+		clock-frequency = <400000>;
+	};
+
+	i2c@7000c500 {
+		clock-frequency = <400000>;
+	};
+
+	i2c@7000d000 {
+		clock-frequency = <400000>;
+	};
+
+	serial@70006000 {
+		status = "disable";
+	};
+
+	serial@70006040 {
+		status = "disable";
+	};
+
+	serial@70006200 {
+		status = "disable";
+	};
+
 	serial@70006300 {
 		clock-frequency = < 216000000 >;
 	};
 
+	serial@70006400 {
+		status = "disable";
+	};
+
+	sdhci@c8000000 {
+		status = "disable";
+	};
+
+	sdhci@c8000200 {
+		status = "disable";
+	};
+
 	sdhci@c8000400 {
 		cd-gpios = <&gpio 69 0>; /* gpio PI5 */
 		wp-gpios = <&gpio 57 0>; /* gpio PH1 */
diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi
index 65d7e6a333eb..3da7afd45322 100644
--- a/arch/arm/boot/dts/tegra20.dtsi
+++ b/arch/arm/boot/dts/tegra20.dtsi
@@ -5,9 +5,9 @@
 	interrupt-parent = <&intc>;
 
 	intc: interrupt-controller@50041000 {
-		compatible = "nvidia,tegra20-gic";
+		compatible = "arm,cortex-a9-gic";
 		interrupt-controller;
-		#interrupt-cells = <1>;
+		#interrupt-cells = <3>;
 		reg = < 0x50041000 0x1000 >,
 		      < 0x50040100 0x0100 >;
 	};
@@ -17,7 +17,7 @@
 		#size-cells = <0>;
 		compatible = "nvidia,tegra20-i2c";
 		reg = <0x7000C000 0x100>;
-		interrupts = < 70 >;
+		interrupts = < 0 38 0x04 >;
 	};
 
 	i2c@7000c400 {
@@ -25,7 +25,7 @@
 		#size-cells = <0>;
 		compatible = "nvidia,tegra20-i2c";
 		reg = <0x7000C400 0x100>;
-		interrupts = < 116 >;
+		interrupts = < 0 84 0x04 >;
 	};
 
 	i2c@7000c500 {
@@ -33,38 +33,32 @@
 		#size-cells = <0>;
 		compatible = "nvidia,tegra20-i2c";
 		reg = <0x7000C500 0x100>;
-		interrupts = < 124 >;
+		interrupts = < 0 92 0x04 >;
 	};
 
 	i2c@7000d000 {
 		#address-cells = <1>;
 		#size-cells = <0>;
-		compatible = "nvidia,tegra20-i2c";
+		compatible = "nvidia,tegra20-i2c-dvc";
 		reg = <0x7000D000 0x200>;
-		interrupts = < 85 >;
+		interrupts = < 0 53 0x04 >;
 	};
 
 	i2s@70002800 {
-		#address-cells = <1>;
-		#size-cells = <0>;
 		compatible = "nvidia,tegra20-i2s";
 		reg = <0x70002800 0x200>;
-		interrupts = < 45 >;
+		interrupts = < 0 13 0x04 >;
 		dma-channel = < 2 >;
 	};
 
 	i2s@70002a00 {
-		#address-cells = <1>;
-		#size-cells = <0>;
 		compatible = "nvidia,tegra20-i2s";
 		reg = <0x70002a00 0x200>;
-		interrupts = < 35 >;
+		interrupts = < 0 3 0x04 >;
 		dma-channel = < 1 >;
 	};
 
 	das@70000c00 {
-		#address-cells = <1>;
-		#size-cells = <0>;
 		compatible = "nvidia,tegra20-das";
 		reg = <0x70000c00 0x80>;
 	};
@@ -72,7 +66,13 @@
 	gpio: gpio@6000d000 {
 		compatible = "nvidia,tegra20-gpio";
 		reg = < 0x6000d000 0x1000 >;
-		interrupts = < 64 65 66 67 87 119 121 >;
+		interrupts = < 0 32 0x04
+			       0 33 0x04
+			       0 34 0x04
+			       0 35 0x04
+			       0 55 0x04
+			       0 87 0x04
+			       0 89 0x04 >;
 		#gpio-cells = <2>;
 		gpio-controller;
 	};
@@ -89,59 +89,80 @@
 		compatible = "nvidia,tegra20-uart";
 		reg = <0x70006000 0x40>;
 		reg-shift = <2>;
-		interrupts = < 68 >;
+		interrupts = < 0 36 0x04 >;
 	};
 
 	serial@70006040 {
 		compatible = "nvidia,tegra20-uart";
 		reg = <0x70006040 0x40>;
 		reg-shift = <2>;
-		interrupts = < 69 >;
+		interrupts = < 0 37 0x04 >;
 	};
 
 	serial@70006200 {
 		compatible = "nvidia,tegra20-uart";
 		reg = <0x70006200 0x100>;
 		reg-shift = <2>;
-		interrupts = < 78 >;
+		interrupts = < 0 46 0x04 >;
 	};
 
 	serial@70006300 {
 		compatible = "nvidia,tegra20-uart";
 		reg = <0x70006300 0x100>;
 		reg-shift = <2>;
-		interrupts = < 122 >;
+		interrupts = < 0 90 0x04 >;
 	};
 
 	serial@70006400 {
 		compatible = "nvidia,tegra20-uart";
 		reg = <0x70006400 0x100>;
 		reg-shift = <2>;
-		interrupts = < 123 >;
+		interrupts = < 0 91 0x04 >;
 	};
 
 	sdhci@c8000000 {
 		compatible = "nvidia,tegra20-sdhci";
 		reg = <0xc8000000 0x200>;
-		interrupts = < 46 >;
+		interrupts = < 0 14 0x04 >;
 	};
 
 	sdhci@c8000200 {
 		compatible = "nvidia,tegra20-sdhci";
 		reg = <0xc8000200 0x200>;
-		interrupts = < 47 >;
+		interrupts = < 0 15 0x04 >;
 	};
 
 	sdhci@c8000400 {
 		compatible = "nvidia,tegra20-sdhci";
 		reg = <0xc8000400 0x200>;
-		interrupts = < 51 >;
+		interrupts = < 0 19 0x04 >;
 	};
 
 	sdhci@c8000600 {
 		compatible = "nvidia,tegra20-sdhci";
 		reg = <0xc8000600 0x200>;
-		interrupts = < 63 >;
+		interrupts = < 0 31 0x04 >;
+	};
+
+	usb@c5000000 {
+		compatible = "nvidia,tegra20-ehci", "usb-ehci";
+		reg = <0xc5000000 0x4000>;
+		interrupts = < 0 20 0x04 >;
+		phy_type = "utmi";
+	};
+
+	usb@c5004000 {
+		compatible = "nvidia,tegra20-ehci", "usb-ehci";
+		reg = <0xc5004000 0x4000>;
+		interrupts = < 0 21 0x04 >;
+		phy_type = "ulpi";
+	};
+
+	usb@c5008000 {
+		compatible = "nvidia,tegra20-ehci", "usb-ehci";
+		reg = <0xc5008000 0x4000>;
+		interrupts = < 0 97 0x04 >;
+		phy_type = "utmi";
 	};
 };
 
diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi
new file mode 100644
index 000000000000..ee7db9892e02
--- /dev/null
+++ b/arch/arm/boot/dts/tegra30.dtsi
@@ -0,0 +1,127 @@
+/include/ "skeleton.dtsi"
+
+/ {
+	compatible = "nvidia,tegra30";
+	interrupt-parent = <&intc>;
+
+	intc: interrupt-controller@50041000 {
+		compatible = "arm,cortex-a9-gic";
+		interrupt-controller;
+		#interrupt-cells = <3>;
+		reg = < 0x50041000 0x1000 >,
+		      < 0x50040100 0x0100 >;
+	};
+
+	i2c@7000c000 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible =  "nvidia,tegra30-i2c", "nvidia,tegra20-i2c";
+		reg = <0x7000C000 0x100>;
+		interrupts = < 0 38 0x04 >;
+	};
+
+	i2c@7000c400 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "nvidia,tegra30-i2c", "nvidia,tegra20-i2c";
+		reg = <0x7000C400 0x100>;
+		interrupts = < 0 84 0x04 >;
+	};
+
+	i2c@7000c500 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "nvidia,tegra30-i2c", "nvidia,tegra20-i2c";
+		reg = <0x7000C500 0x100>;
+		interrupts = < 0 92 0x04 >;
+	};
+
+	i2c@7000c700 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "nvidia,tegra30-i2c", "nvidia,tegra20-i2c";
+		reg = <0x7000c700 0x100>;
+		interrupts = < 0 120 0x04 >;
+	};
+
+	i2c@7000d000 {
+		#address-cells = <1>;
+		#size-cells = <0>;
+		compatible = "nvidia,tegra30-i2c", "nvidia,tegra20-i2c";
+		reg = <0x7000D000 0x100>;
+		interrupts = < 0 53 0x04 >;
+	};
+
+	gpio: gpio@6000d000 {
+		compatible = "nvidia,tegra30-gpio", "nvidia,tegra20-gpio";
+		reg = < 0x6000d000 0x1000 >;
+		interrupts = < 0 32 0x04 0 33 0x04 0 34 0x04 0 35 0x04 0 55 0x04 0 87 0x04 0 89 0x04 >;
+		#gpio-cells = <2>;
+		gpio-controller;
+	};
+
+	serial@70006000 {
+		compatible = "nvidia,tegra30-uart", "nvidia,tegra20-uart";
+		reg = <0x70006000 0x40>;
+		reg-shift = <2>;
+		interrupts = < 0 36 0x04 >;
+	};
+
+	serial@70006040 {
+		compatible = "nvidia,tegra30-uart", "nvidia,tegra20-uart";
+		reg = <0x70006040 0x40>;
+		reg-shift = <2>;
+		interrupts = < 0 37 0x04 >;
+	};
+
+	serial@70006200 {
+		compatible = "nvidia,tegra30-uart", "nvidia,tegra20-uart";
+		reg = <0x70006200 0x100>;
+		reg-shift = <2>;
+		interrupts = < 0 46 0x04 >;
+	};
+
+	serial@70006300 {
+		compatible = "nvidia,tegra30-uart", "nvidia,tegra20-uart";
+		reg = <0x70006300 0x100>;
+		reg-shift = <2>;
+		interrupts = < 0 90 0x04 >;
+	};
+
+	serial@70006400 {
+		compatible = "nvidia,tegra30-uart", "nvidia,tegra20-uart";
+		reg = <0x70006400 0x100>;
+		reg-shift = <2>;
+		interrupts = < 0 91 0x04 >;
+	};
+
+	sdhci@78000000 {
+		compatible = "nvidia,tegra30-sdhci", "nvidia,tegra20-sdhci";
+		reg = <0x78000000 0x200>;
+		interrupts = < 0 14 0x04 >;
+	};
+
+	sdhci@78000200 {
+		compatible = "nvidia,tegra30-sdhci", "nvidia,tegra20-sdhci";
+		reg = <0x78000200 0x200>;
+		interrupts = < 0 15 0x04 >;
+	};
+
+	sdhci@78000400 {
+		compatible = "nvidia,tegra30-sdhci", "nvidia,tegra20-sdhci";
+		reg = <0x78000400 0x200>;
+		interrupts = < 0 19 0x04 >;
+	};
+
+	sdhci@78000600 {
+		compatible = "nvidia,tegra30-sdhci", "nvidia,tegra20-sdhci";
+		reg = <0x78000600 0x200>;
+		interrupts = < 0 31 0x04 >;
+	};
+
+	pinmux: pinmux@70000000 {
+		compatible = "nvidia,tegra30-pinmux";
+		reg = < 0x70000868 0xd0     /* Pad control registers */
+			0x70003000 0x3e0 >; /* Mux registers */
+	};
+};
diff --git a/arch/arm/boot/dts/usb_a9g20.dts b/arch/arm/boot/dts/usb_a9g20.dts
index d66e2c00ac35..f04b535477f5 100644
--- a/arch/arm/boot/dts/usb_a9g20.dts
+++ b/arch/arm/boot/dts/usb_a9g20.dts
@@ -25,6 +25,11 @@
 			dbgu: serial@fffff200 {
 				status = "okay";
 			};
+
+			macb0: ethernet@fffc4000 {
+				phy-mode = "rmii";
+				status = "okay";
+			};
 		};
 	};
 };
diff --git a/arch/arm/configs/imx_v4_v5_defconfig b/arch/arm/configs/imx_v4_v5_defconfig
index cf497ce41dfe..a22e93079063 100644
--- a/arch/arm/configs/imx_v4_v5_defconfig
+++ b/arch/arm/configs/imx_v4_v5_defconfig
@@ -68,7 +68,6 @@ CONFIG_MTD_CFI=y
 CONFIG_MTD_CFI_ADV_OPTIONS=y
 CONFIG_MTD_CFI_GEOMETRY=y
 # CONFIG_MTD_MAP_BANK_WIDTH_1 is not set
-# CONFIG_MTD_MAP_BANK_WIDTH_4 is not set
 # CONFIG_MTD_CFI_I2 is not set
 CONFIG_MTD_CFI_INTELEXT=y
 CONFIG_MTD_PHYSMAP=y
diff --git a/arch/arm/configs/omap1_defconfig b/arch/arm/configs/omap1_defconfig
index 945a34f2a34d..dde2a1af7b39 100644
--- a/arch/arm/configs/omap1_defconfig
+++ b/arch/arm/configs/omap1_defconfig
@@ -48,7 +48,6 @@ CONFIG_MACH_SX1=y
 CONFIG_MACH_NOKIA770=y
 CONFIG_MACH_AMS_DELTA=y
 CONFIG_MACH_OMAP_GENERIC=y
-CONFIG_OMAP_ARM_182MHZ=y
 # CONFIG_ARM_THUMB is not set
 CONFIG_PCCARD=y
 CONFIG_OMAP_CF=y
diff --git a/arch/arm/configs/pcontrol_g20_defconfig b/arch/arm/configs/pcontrol_g20_defconfig
deleted file mode 100644
index c75c9fcede58..000000000000
--- a/arch/arm/configs/pcontrol_g20_defconfig
+++ /dev/null
@@ -1,175 +0,0 @@
-CONFIG_EXPERIMENTAL=y
-CONFIG_CROSS_COMPILE="/opt/arm-2010q1/bin/arm-none-linux-gnueabi-"
-# CONFIG_LOCALVERSION_AUTO is not set
-# CONFIG_SWAP is not set
-CONFIG_SYSVIPC=y
-CONFIG_POSIX_MQUEUE=y
-CONFIG_TREE_PREEMPT_RCU=y
-CONFIG_IKCONFIG=y
-CONFIG_IKCONFIG_PROC=y
-CONFIG_LOG_BUF_SHIFT=14
-CONFIG_NAMESPACES=y
-CONFIG_BLK_DEV_INITRD=y
-CONFIG_EXPERT=y
-# CONFIG_SYSCTL_SYSCALL is not set
-# CONFIG_KALLSYMS is not set
-# CONFIG_VM_EVENT_COUNTERS is not set
-# CONFIG_COMPAT_BRK is not set
-CONFIG_SLAB=y
-CONFIG_MODULES=y
-CONFIG_MODULE_UNLOAD=y
-# CONFIG_LBDAF is not set
-# CONFIG_BLK_DEV_BSG is not set
-CONFIG_DEFAULT_DEADLINE=y
-CONFIG_ARCH_AT91=y
-CONFIG_ARCH_AT91SAM9G20=y
-CONFIG_MACH_PCONTROL_G20=y
-CONFIG_AT91_PROGRAMMABLE_CLOCKS=y
-CONFIG_NO_HZ=y
-CONFIG_HIGH_RES_TIMERS=y
-CONFIG_PREEMPT=y
-CONFIG_AEABI=y
-# CONFIG_OABI_COMPAT is not set
-CONFIG_ZBOOT_ROM_TEXT=0x0
-CONFIG_ZBOOT_ROM_BSS=0x0
-CONFIG_CMDLINE="console=ttyS0,115200 mem=128M mtdparts=atmel_nand:128k(bootstrap)ro,256k(uboot)ro,128k(env1)ro,128k(env2)ro,2M(linux),-(root) root=/dev/mmcblk0p1 rootwait rw"
-CONFIG_VFP=y
-CONFIG_BINFMT_MISC=y
-CONFIG_NET=y
-CONFIG_PACKET=y
-CONFIG_UNIX=y
-CONFIG_INET=y
-# CONFIG_INET_XFRM_MODE_TRANSPORT is not set
-# CONFIG_INET_XFRM_MODE_TUNNEL is not set
-# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
-# CONFIG_IPV6 is not set
-CONFIG_VLAN_8021Q=y
-# CONFIG_WIRELESS is not set
-CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
-# CONFIG_FW_LOADER is not set
-CONFIG_MTD=y
-CONFIG_MTD_PARTITIONS=y
-CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_CHAR=y
-CONFIG_MTD_BLOCK=y
-CONFIG_MTD_COMPLEX_MAPPINGS=y
-CONFIG_MTD_PHRAM=m
-CONFIG_MTD_NAND=y
-CONFIG_MTD_NAND_ATMEL=y
-CONFIG_BLK_DEV_LOOP=y
-CONFIG_BLK_DEV_RAM=y
-CONFIG_BLK_DEV_RAM_SIZE=8192
-CONFIG_ATMEL_TCLIB=y
-CONFIG_EEPROM_AT24=m
-CONFIG_SCSI=m
-# CONFIG_SCSI_PROC_FS is not set
-CONFIG_BLK_DEV_SD=m
-CONFIG_SCSI_MULTI_LUN=y
-# CONFIG_SCSI_LOWLEVEL is not set
-CONFIG_NETDEVICES=y
-CONFIG_MACVLAN=m
-CONFIG_TUN=m
-CONFIG_SMSC_PHY=m
-CONFIG_BROADCOM_PHY=m
-CONFIG_NET_ETHERNET=y
-CONFIG_MII=y
-CONFIG_MACB=y
-CONFIG_SMSC911X=m
-# CONFIG_NETDEV_1000 is not set
-# CONFIG_NETDEV_10000 is not set
-# CONFIG_WLAN is not set
-CONFIG_PPP=m
-CONFIG_PPP_ASYNC=m
-CONFIG_PPP_DEFLATE=m
-CONFIG_PPP_MPPE=m
-CONFIG_INPUT_POLLDEV=y
-CONFIG_INPUT_SPARSEKMAP=y
-# CONFIG_INPUT_MOUSEDEV is not set
-CONFIG_INPUT_EVDEV=m
-CONFIG_INPUT_EVBUG=m
-# CONFIG_KEYBOARD_ATKBD is not set
-CONFIG_KEYBOARD_GPIO=m
-CONFIG_KEYBOARD_MATRIX=m
-# CONFIG_INPUT_MOUSE is not set
-CONFIG_INPUT_TOUCHSCREEN=y
-CONFIG_INPUT_MISC=y
-CONFIG_INPUT_UINPUT=m
-CONFIG_INPUT_GPIO_ROTARY_ENCODER=m
-# CONFIG_SERIO is not set
-# CONFIG_DEVKMEM is not set
-CONFIG_SERIAL_ATMEL=y
-CONFIG_SERIAL_ATMEL_CONSOLE=y
-CONFIG_SERIAL_MAX3100=m
-# CONFIG_LEGACY_PTYS is not set
-# CONFIG_HW_RANDOM is not set
-CONFIG_R3964=m
-CONFIG_I2C=m
-CONFIG_I2C_CHARDEV=m
-# CONFIG_I2C_HELPER_AUTO is not set
-CONFIG_I2C_GPIO=m
-CONFIG_SPI=y
-CONFIG_SPI_ATMEL=m
-CONFIG_SPI_SPIDEV=m
-CONFIG_GPIO_SYSFS=y
-CONFIG_W1=m
-CONFIG_W1_MASTER_GPIO=m
-CONFIG_W1_SLAVE_DS2431=m
-# CONFIG_HWMON is not set
-CONFIG_WATCHDOG=y
-CONFIG_AT91SAM9X_WATCHDOG=y
-# CONFIG_MFD_SUPPORT is not set
-# CONFIG_HID_SUPPORT is not set
-CONFIG_USB=y
-# CONFIG_USB_DEVICE_CLASS is not set
-CONFIG_USB_OHCI_HCD=y
-CONFIG_USB_STORAGE=m
-CONFIG_USB_LIBUSUAL=y
-CONFIG_USB_SERIAL=m
-CONFIG_USB_SERIAL_GENERIC=y
-CONFIG_USB_SERIAL_FTDI_SIO=m
-CONFIG_USB_SERIAL_PL2303=m
-CONFIG_USB_GADGET=y
-CONFIG_USB_ZERO=m
-CONFIG_USB_ETH=m
-CONFIG_USB_FILE_STORAGE=m
-CONFIG_USB_G_SERIAL=m
-CONFIG_USB_G_HID=m
-CONFIG_MMC=y
-CONFIG_MMC_UNSAFE_RESUME=y
-CONFIG_MMC_ATMELMCI=y
-CONFIG_NEW_LEDS=y
-CONFIG_LEDS_CLASS=y
-CONFIG_LEDS_GPIO=y
-CONFIG_LEDS_TRIGGERS=y
-CONFIG_LEDS_TRIGGER_TIMER=y
-CONFIG_LEDS_TRIGGER_HEARTBEAT=y
-CONFIG_LEDS_TRIGGER_DEFAULT_ON=y
-CONFIG_RTC_CLASS=y
-CONFIG_RTC_DRV_AT91SAM9=y
-CONFIG_AUXDISPLAY=y
-CONFIG_UIO=y
-CONFIG_UIO_PDRV=y
-CONFIG_STAGING=y
-# CONFIG_STAGING_EXCLUDE_BUILD is not set
-CONFIG_IIO=y
-CONFIG_EXT2_FS=y
-CONFIG_EXT3_FS=y
-# CONFIG_EXT3_FS_XATTR is not set
-CONFIG_VFAT_FS=y
-CONFIG_TMPFS=y
-CONFIG_JFFS2_FS=y
-CONFIG_NFS_FS=y
-CONFIG_NFS_V3=y
-CONFIG_NFS_V4=y
-CONFIG_PARTITION_ADVANCED=y
-CONFIG_NLS_CODEPAGE_437=y
-CONFIG_NLS_CODEPAGE_850=y
-CONFIG_NLS_ISO8859_1=y
-CONFIG_NLS_ISO8859_15=y
-CONFIG_NLS_UTF8=y
-# CONFIG_RCU_CPU_STALL_DETECTOR is not set
-CONFIG_CRYPTO=y
-CONFIG_CRYPTO_ANSI_CPRNG=y
-# CONFIG_CRYPTO_HW is not set
-CONFIG_CRC_CCITT=y
diff --git a/arch/arm/configs/tegra_defconfig b/arch/arm/configs/tegra_defconfig
index 195729760aeb..fd5d3041d717 100644
--- a/arch/arm/configs/tegra_defconfig
+++ b/arch/arm/configs/tegra_defconfig
@@ -9,9 +9,8 @@ CONFIG_RESOURCE_COUNTERS=y
 CONFIG_CGROUP_SCHED=y
 CONFIG_RT_GROUP_SCHED=y
 CONFIG_BLK_DEV_INITRD=y
-CONFIG_EMBEDDED=y
-# CONFIG_SYSCTL_SYSCALL is not set
 # CONFIG_ELF_CORE is not set
+CONFIG_EMBEDDED=y
 CONFIG_SLAB=y
 CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
@@ -20,6 +19,8 @@ CONFIG_MODULE_FORCE_UNLOAD=y
 # CONFIG_IOSCHED_DEADLINE is not set
 # CONFIG_IOSCHED_CFQ is not set
 CONFIG_ARCH_TEGRA=y
+CONFIG_ARCH_TEGRA_2x_SOC=y
+CONFIG_ARCH_TEGRA_3x_SOC=y
 CONFIG_MACH_HARMONY=y
 CONFIG_MACH_KAEN=y
 CONFIG_MACH_PAZ00=y
@@ -78,14 +79,12 @@ CONFIG_BLK_DEV_SD=y
 # CONFIG_SCSI_LOWLEVEL is not set
 CONFIG_NETDEVICES=y
 CONFIG_DUMMY=y
-CONFIG_NET_ETHERNET=y
 CONFIG_R8169=y
-# CONFIG_NETDEV_10000 is not set
-# CONFIG_WLAN is not set
 CONFIG_USB_PEGASUS=y
 CONFIG_USB_USBNET=y
 CONFIG_USB_NET_SMSC75XX=y
 CONFIG_USB_NET_SMSC95XX=y
+# CONFIG_WLAN is not set
 # CONFIG_INPUT is not set
 # CONFIG_SERIO is not set
 # CONFIG_VT is not set
diff --git a/arch/arm/include/asm/io.h b/arch/arm/include/asm/io.h
index 065d100fa63e..9275828feb3d 100644
--- a/arch/arm/include/asm/io.h
+++ b/arch/arm/include/asm/io.h
@@ -27,6 +27,7 @@
 #include <asm/byteorder.h>
 #include <asm/memory.h>
 #include <asm/system.h>
+#include <asm-generic/pci_iomap.h>
 
 /*
  * ISA I/O bus memory addresses are 1:1 with the physical address.
@@ -306,7 +307,6 @@ extern void ioport_unmap(void __iomem *addr);
 
 struct pci_dev;
 
-extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen);
 extern void pci_iounmap(struct pci_dev *dev, void __iomem *addr);
 
 /*
diff --git a/arch/arm/mach-at91/Kconfig b/arch/arm/mach-at91/Kconfig
index d111c3e99249..4f991f295284 100644
--- a/arch/arm/mach-at91/Kconfig
+++ b/arch/arm/mach-at91/Kconfig
@@ -3,6 +3,12 @@ if ARCH_AT91
 config HAVE_AT91_DATAFLASH_CARD
 	bool
 
+config HAVE_AT91_DBGU0
+	bool
+
+config HAVE_AT91_DBGU1
+	bool
+
 config HAVE_AT91_USART3
 	bool
 
@@ -21,12 +27,14 @@ config ARCH_AT91RM9200
 	bool "AT91RM9200"
 	select CPU_ARM920T
 	select GENERIC_CLOCKEVENTS
+	select HAVE_AT91_DBGU0
 	select HAVE_AT91_USART3
 
 config ARCH_AT91SAM9260
 	bool "AT91SAM9260 or AT91SAM9XE"
 	select CPU_ARM926T
 	select GENERIC_CLOCKEVENTS
+	select HAVE_AT91_DBGU0
 	select HAVE_AT91_USART3
 	select HAVE_AT91_USART4
 	select HAVE_AT91_USART5
@@ -37,11 +45,13 @@ config ARCH_AT91SAM9261
 	select CPU_ARM926T
 	select GENERIC_CLOCKEVENTS
 	select HAVE_FB_ATMEL
+	select HAVE_AT91_DBGU0
 
 config ARCH_AT91SAM9G10
 	bool "AT91SAM9G10"
 	select CPU_ARM926T
 	select GENERIC_CLOCKEVENTS
+	select HAVE_AT91_DBGU0
 	select HAVE_FB_ATMEL
 
 config ARCH_AT91SAM9263
@@ -50,6 +60,7 @@ config ARCH_AT91SAM9263
 	select GENERIC_CLOCKEVENTS
 	select HAVE_FB_ATMEL
 	select HAVE_NET_MACB
+	select HAVE_AT91_DBGU1
 
 config ARCH_AT91SAM9RL
 	bool "AT91SAM9RL"
@@ -57,11 +68,13 @@ config ARCH_AT91SAM9RL
 	select GENERIC_CLOCKEVENTS
 	select HAVE_AT91_USART3
 	select HAVE_FB_ATMEL
+	select HAVE_AT91_DBGU0
 
 config ARCH_AT91SAM9G20
 	bool "AT91SAM9G20"
 	select CPU_ARM926T
 	select GENERIC_CLOCKEVENTS
+	select HAVE_AT91_DBGU0
 	select HAVE_AT91_USART3
 	select HAVE_AT91_USART4
 	select HAVE_AT91_USART5
@@ -74,6 +87,7 @@ config ARCH_AT91SAM9G45
 	select HAVE_AT91_USART3
 	select HAVE_FB_ATMEL
 	select HAVE_NET_MACB
+	select HAVE_AT91_DBGU1
 
 config ARCH_AT91CAP9
 	bool "AT91CAP9"
@@ -81,6 +95,7 @@ config ARCH_AT91CAP9
 	select GENERIC_CLOCKEVENTS
 	select HAVE_FB_ATMEL
 	select HAVE_NET_MACB
+	select HAVE_AT91_DBGU1
 
 config ARCH_AT91X40
 	bool "AT91x40"
@@ -510,8 +525,13 @@ config AT91_TIMER_HZ
 choice
 	prompt "Select a UART for early kernel messages"
 
-config AT91_EARLY_DBGU
-	bool "DBGU"
+config AT91_EARLY_DBGU0
+	bool "DBGU on rm9200, 9260/9g20, 9261/9g10 and 9rl"
+	depends on HAVE_AT91_DBGU0
+
+config AT91_EARLY_DBGU1
+	bool "DBGU on 9263, 9g45 and cap9"
+	depends on HAVE_AT91_DBGU1
 
 config AT91_EARLY_USART0
 	bool "USART0"
diff --git a/arch/arm/mach-at91/at91cap9.c b/arch/arm/mach-at91/at91cap9.c
index 29373397d2df..edb879ac04c8 100644
--- a/arch/arm/mach-at91/at91cap9.c
+++ b/arch/arm/mach-at91/at91cap9.c
@@ -13,7 +13,6 @@
  */
 
 #include <linux/module.h>
-#include <linux/pm.h>
 
 #include <asm/irq.h>
 #include <asm/mach/arch.h>
@@ -23,11 +22,11 @@
 #include <mach/at91cap9.h>
 #include <mach/at91_pmc.h>
 #include <mach/at91_rstc.h>
-#include <mach/at91_shdwc.h>
 
 #include "soc.h"
 #include "generic.h"
 #include "clock.h"
+#include "sam9_smc.h"
 
 /* --------------------------------------------------------------------
  *  Clocks
@@ -137,7 +136,7 @@ static struct clk pwm_clk = {
 	.type		= CLK_TYPE_PERIPHERAL,
 };
 static struct clk macb_clk = {
-	.name		= "macb_clk",
+	.name		= "pclk",
 	.pmc_mask	= 1 << AT91CAP9_ID_EMAC,
 	.type		= CLK_TYPE_PERIPHERAL,
 };
@@ -210,6 +209,8 @@ static struct clk *periph_clocks[] __initdata = {
 };
 
 static struct clk_lookup periph_clocks_lookups[] = {
+	/* One additional fake clock for macb_hclk */
+	CLKDEV_CON_ID("hclk", &macb_clk),
 	CLKDEV_CON_DEV_ID("hclk", "atmel_usba_udc", &utmi_clk),
 	CLKDEV_CON_DEV_ID("pclk", "atmel_usba_udc", &udphs_clk),
 	CLKDEV_CON_DEV_ID("mci_clk", "at91_mci.0", &mmc0_clk),
@@ -221,6 +222,10 @@ static struct clk_lookup periph_clocks_lookups[] = {
 	CLKDEV_CON_DEV_ID("pclk", "ssc.1", &ssc1_clk),
 	/* fake hclk clock */
 	CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &ohci_clk),
+	CLKDEV_CON_ID("pioA", &pioABCD_clk),
+	CLKDEV_CON_ID("pioB", &pioABCD_clk),
+	CLKDEV_CON_ID("pioC", &pioABCD_clk),
+	CLKDEV_CON_ID("pioD", &pioABCD_clk),
 };
 
 static struct clk_lookup usart_clocks_lookups[] = {
@@ -293,23 +298,19 @@ void __init at91cap9_set_console_clock(int id)
  *  GPIO
  * -------------------------------------------------------------------- */
 
-static struct at91_gpio_bank at91cap9_gpio[] = {
+static struct at91_gpio_bank at91cap9_gpio[] __initdata = {
 	{
 		.id		= AT91CAP9_ID_PIOABCD,
-		.offset		= AT91_PIOA,
-		.clock		= &pioABCD_clk,
+		.regbase	= AT91CAP9_BASE_PIOA,
 	}, {
 		.id		= AT91CAP9_ID_PIOABCD,
-		.offset		= AT91_PIOB,
-		.clock		= &pioABCD_clk,
+		.regbase	= AT91CAP9_BASE_PIOB,
 	}, {
 		.id		= AT91CAP9_ID_PIOABCD,
-		.offset		= AT91_PIOC,
-		.clock		= &pioABCD_clk,
+		.regbase	= AT91CAP9_BASE_PIOC,
 	}, {
 		.id		= AT91CAP9_ID_PIOABCD,
-		.offset		= AT91_PIOD,
-		.clock		= &pioABCD_clk,
+		.regbase	= AT91CAP9_BASE_PIOD,
 	}
 };
 
@@ -318,12 +319,6 @@ static void at91cap9_restart(char mode, const char *cmd)
 	at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | AT91_RSTC_PROCRST | AT91_RSTC_PERRST);
 }
 
-static void at91cap9_poweroff(void)
-{
-	at91_sys_write(AT91_SHDW_CR, AT91_SHDW_KEY | AT91_SHDW_SHDW);
-}
-
-
 /* --------------------------------------------------------------------
  *  AT91CAP9 processor initialization
  * -------------------------------------------------------------------- */
@@ -333,10 +328,16 @@ static void __init at91cap9_map_io(void)
 	at91_init_sram(0, AT91CAP9_SRAM_BASE, AT91CAP9_SRAM_SIZE);
 }
 
+static void __init at91cap9_ioremap_registers(void)
+{
+	at91_ioremap_shdwc(AT91CAP9_BASE_SHDWC);
+	at91sam926x_ioremap_pit(AT91CAP9_BASE_PIT);
+	at91sam9_ioremap_smc(0, AT91CAP9_BASE_SMC);
+}
+
 static void __init at91cap9_initialize(void)
 {
 	arm_pm_restart = at91cap9_restart;
-	pm_power_off = at91cap9_poweroff;
 	at91_extern_irq = (1 << AT91CAP9_ID_IRQ0) | (1 << AT91CAP9_ID_IRQ1);
 
 	/* Register GPIO subsystem */
@@ -394,6 +395,7 @@ static unsigned int at91cap9_default_irq_priority[NR_AIC_IRQS] __initdata = {
 struct at91_init_soc __initdata at91cap9_soc = {
 	.map_io = at91cap9_map_io,
 	.default_irq_priority = at91cap9_default_irq_priority,
+	.ioremap_registers = at91cap9_ioremap_registers,
 	.register_clocks = at91cap9_register_clocks,
 	.init = at91cap9_initialize,
 };
diff --git a/arch/arm/mach-at91/at91cap9_devices.c b/arch/arm/mach-at91/at91cap9_devices.c
index adad70db70eb..d298fb7cb210 100644
--- a/arch/arm/mach-at91/at91cap9_devices.c
+++ b/arch/arm/mach-at91/at91cap9_devices.c
@@ -76,7 +76,7 @@ void __init at91_add_device_usbh(struct at91_usbh_data *data)
 
 	/* Enable VBus control for UHP ports */
 	for (i = 0; i < data->ports; i++) {
-		if (data->vbus_pin[i])
+		if (gpio_is_valid(data->vbus_pin[i]))
 			at91_set_gpio_output(data->vbus_pin[i], 0);
 	}
 
@@ -179,7 +179,7 @@ void __init at91_add_device_usba(struct usba_platform_data *data)
 	usba_udc_data.pdata.num_ep = ARRAY_SIZE(usba_udc_ep);
 	memcpy(usba_udc_data.ep, usba_udc_ep, sizeof(usba_udc_ep));
 
-	if (data && data->vbus_pin > 0) {
+	if (data && gpio_is_valid(data->vbus_pin)) {
 		at91_set_gpio_input(data->vbus_pin, 0);
 		at91_set_deglitch(data->vbus_pin, 1);
 		usba_udc_data.pdata.vbus_pin = data->vbus_pin;
@@ -200,7 +200,7 @@ void __init at91_add_device_usba(struct usba_platform_data *data) {}
 
 #if defined(CONFIG_MACB) || defined(CONFIG_MACB_MODULE)
 static u64 eth_dmamask = DMA_BIT_MASK(32);
-static struct at91_eth_data eth_data;
+static struct macb_platform_data eth_data;
 
 static struct resource eth_resources[] = {
 	[0] = {
@@ -227,12 +227,12 @@ static struct platform_device at91cap9_eth_device = {
 	.num_resources	= ARRAY_SIZE(eth_resources),
 };
 
-void __init at91_add_device_eth(struct at91_eth_data *data)
+void __init at91_add_device_eth(struct macb_platform_data *data)
 {
 	if (!data)
 		return;
 
-	if (data->phy_irq_pin) {
+	if (gpio_is_valid(data->phy_irq_pin)) {
 		at91_set_gpio_input(data->phy_irq_pin, 0);
 		at91_set_deglitch(data->phy_irq_pin, 1);
 	}
@@ -264,7 +264,7 @@ void __init at91_add_device_eth(struct at91_eth_data *data)
 	platform_device_register(&at91cap9_eth_device);
 }
 #else
-void __init at91_add_device_eth(struct at91_eth_data *data) {}
+void __init at91_add_device_eth(struct macb_platform_data *data) {}
 #endif
 
 
@@ -332,13 +332,13 @@ void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data)
 		return;
 
 	/* input/irq */
-	if (data->det_pin) {
+	if (gpio_is_valid(data->det_pin)) {
 		at91_set_gpio_input(data->det_pin, 1);
 		at91_set_deglitch(data->det_pin, 1);
 	}
-	if (data->wp_pin)
+	if (gpio_is_valid(data->wp_pin))
 		at91_set_gpio_input(data->wp_pin, 1);
-	if (data->vcc_pin)
+	if (gpio_is_valid(data->vcc_pin))
 		at91_set_gpio_output(data->vcc_pin, 0);
 
 	if (mmc_id == 0) {		/* MCI0 */
@@ -398,8 +398,8 @@ static struct resource nand_resources[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= AT91_BASE_SYS + AT91_ECC,
-		.end	= AT91_BASE_SYS + AT91_ECC + SZ_512 - 1,
+		.start	= AT91CAP9_BASE_ECC,
+		.end	= AT91CAP9_BASE_ECC + SZ_512 - 1,
 		.flags	= IORESOURCE_MEM,
 	}
 };
@@ -425,15 +425,15 @@ void __init at91_add_device_nand(struct atmel_nand_data *data)
 	at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_EBI_CS3A_SMC_SMARTMEDIA);
 
 	/* enable pin */
-	if (data->enable_pin)
+	if (gpio_is_valid(data->enable_pin))
 		at91_set_gpio_output(data->enable_pin, 1);
 
 	/* ready/busy pin */
-	if (data->rdy_pin)
+	if (gpio_is_valid(data->rdy_pin))
 		at91_set_gpio_input(data->rdy_pin, 1);
 
 	/* card detect pin */
-	if (data->det_pin)
+	if (gpio_is_valid(data->det_pin))
 		at91_set_gpio_input(data->det_pin, 1);
 
 	nand_data = *data;
@@ -670,8 +670,8 @@ static void __init at91_add_device_tc(void) { }
 
 static struct resource rtt_resources[] = {
 	{
-		.start	= AT91_BASE_SYS + AT91_RTT,
-		.end	= AT91_BASE_SYS + AT91_RTT + SZ_16 - 1,
+		.start	= AT91CAP9_BASE_RTT,
+		.end	= AT91CAP9_BASE_RTT + SZ_16 - 1,
 		.flags	= IORESOURCE_MEM,
 	}
 };
@@ -694,10 +694,19 @@ static void __init at91_add_device_rtt(void)
  * -------------------------------------------------------------------- */
 
 #if defined(CONFIG_AT91SAM9X_WATCHDOG) || defined(CONFIG_AT91SAM9X_WATCHDOG_MODULE)
+static struct resource wdt_resources[] = {
+	{
+		.start	= AT91CAP9_BASE_WDT,
+		.end	= AT91CAP9_BASE_WDT + SZ_16 - 1,
+		.flags	= IORESOURCE_MEM,
+	}
+};
+
 static struct platform_device at91cap9_wdt_device = {
 	.name		= "at91_wdt",
 	.id		= -1,
-	.num_resources	= 0,
+	.resource	= wdt_resources,
+	.num_resources	= ARRAY_SIZE(wdt_resources),
 };
 
 static void __init at91_add_device_watchdog(void)
@@ -807,7 +816,7 @@ void __init at91_add_device_ac97(struct ac97c_platform_data *data)
 	at91_set_A_periph(AT91_PIN_PA9, 0);	/* AC97RX */
 
 	/* reset */
-	if (data->reset_pin)
+	if (gpio_is_valid(data->reset_pin))
 		at91_set_gpio_output(data->reset_pin, 0);
 
 	ac97_data = *data;
@@ -1021,8 +1030,8 @@ void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
 #if defined(CONFIG_SERIAL_ATMEL)
 static struct resource dbgu_resources[] = {
 	[0] = {
-		.start	= AT91_BASE_SYS + AT91_DBGU,
-		.end	= AT91_BASE_SYS + AT91_DBGU + SZ_512 - 1,
+		.start	= AT91CAP9_BASE_DBGU,
+		.end	= AT91CAP9_BASE_DBGU + SZ_512 - 1,
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
diff --git a/arch/arm/mach-at91/at91rm9200.c b/arch/arm/mach-at91/at91rm9200.c
index 430a9fdc3dbf..99c3174e24a2 100644
--- a/arch/arm/mach-at91/at91rm9200.c
+++ b/arch/arm/mach-at91/at91rm9200.c
@@ -23,6 +23,7 @@
 #include "soc.h"
 #include "generic.h"
 #include "clock.h"
+#include "sam9_smc.h"
 
 static struct map_desc at91rm9200_io_desc[] __initdata = {
 	{
@@ -195,6 +196,10 @@ static struct clk_lookup periph_clocks_lookups[] = {
 	CLKDEV_CON_DEV_ID("pclk", "ssc.2", &ssc2_clk),
 	/* fake hclk clock */
 	CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &ohci_clk),
+	CLKDEV_CON_ID("pioA", &pioA_clk),
+	CLKDEV_CON_ID("pioB", &pioB_clk),
+	CLKDEV_CON_ID("pioC", &pioC_clk),
+	CLKDEV_CON_ID("pioD", &pioD_clk),
 };
 
 static struct clk_lookup usart_clocks_lookups[] = {
@@ -268,23 +273,19 @@ void __init at91rm9200_set_console_clock(int id)
  *  GPIO
  * -------------------------------------------------------------------- */
 
-static struct at91_gpio_bank at91rm9200_gpio[] = {
+static struct at91_gpio_bank at91rm9200_gpio[] __initdata = {
 	{
 		.id		= AT91RM9200_ID_PIOA,
-		.offset		= AT91_PIOA,
-		.clock		= &pioA_clk,
+		.regbase	= AT91RM9200_BASE_PIOA,
 	}, {
 		.id		= AT91RM9200_ID_PIOB,
-		.offset		= AT91_PIOB,
-		.clock		= &pioB_clk,
+		.regbase	= AT91RM9200_BASE_PIOB,
 	}, {
 		.id		= AT91RM9200_ID_PIOC,
-		.offset		= AT91_PIOC,
-		.clock		= &pioC_clk,
+		.regbase	= AT91RM9200_BASE_PIOC,
 	}, {
 		.id		= AT91RM9200_ID_PIOD,
-		.offset		= AT91_PIOD,
-		.clock		= &pioD_clk,
+		.regbase	= AT91RM9200_BASE_PIOD,
 	}
 };
 
@@ -307,6 +308,10 @@ static void __init at91rm9200_map_io(void)
 	iotable_init(at91rm9200_io_desc, ARRAY_SIZE(at91rm9200_io_desc));
 }
 
+static void __init at91rm9200_ioremap_registers(void)
+{
+}
+
 static void __init at91rm9200_initialize(void)
 {
 	arm_pm_restart = at91rm9200_restart;
@@ -366,6 +371,7 @@ static unsigned int at91rm9200_default_irq_priority[NR_AIC_IRQS] __initdata = {
 struct at91_init_soc __initdata at91rm9200_soc = {
 	.map_io = at91rm9200_map_io,
 	.default_irq_priority = at91rm9200_default_irq_priority,
+	.ioremap_registers = at91rm9200_ioremap_registers,
 	.register_clocks = at91rm9200_register_clocks,
 	.init = at91rm9200_initialize,
 };
diff --git a/arch/arm/mach-at91/at91rm9200_devices.c b/arch/arm/mach-at91/at91rm9200_devices.c
index ad930688358c..18bacec2b094 100644
--- a/arch/arm/mach-at91/at91rm9200_devices.c
+++ b/arch/arm/mach-at91/at91rm9200_devices.c
@@ -114,11 +114,11 @@ void __init at91_add_device_udc(struct at91_udc_data *data)
 	if (!data)
 		return;
 
-	if (data->vbus_pin) {
+	if (gpio_is_valid(data->vbus_pin)) {
 		at91_set_gpio_input(data->vbus_pin, 0);
 		at91_set_deglitch(data->vbus_pin, 1);
 	}
-	if (data->pullup_pin)
+	if (gpio_is_valid(data->pullup_pin))
 		at91_set_gpio_output(data->pullup_pin, 0);
 
 	udc_data = *data;
@@ -135,7 +135,7 @@ void __init at91_add_device_udc(struct at91_udc_data *data) {}
 
 #if defined(CONFIG_ARM_AT91_ETHER) || defined(CONFIG_ARM_AT91_ETHER_MODULE)
 static u64 eth_dmamask = DMA_BIT_MASK(32);
-static struct at91_eth_data eth_data;
+static struct macb_platform_data eth_data;
 
 static struct resource eth_resources[] = {
 	[0] = {
@@ -162,12 +162,12 @@ static struct platform_device at91rm9200_eth_device = {
 	.num_resources	= ARRAY_SIZE(eth_resources),
 };
 
-void __init at91_add_device_eth(struct at91_eth_data *data)
+void __init at91_add_device_eth(struct macb_platform_data *data)
 {
 	if (!data)
 		return;
 
-	if (data->phy_irq_pin) {
+	if (gpio_is_valid(data->phy_irq_pin)) {
 		at91_set_gpio_input(data->phy_irq_pin, 0);
 		at91_set_deglitch(data->phy_irq_pin, 1);
 	}
@@ -199,7 +199,7 @@ void __init at91_add_device_eth(struct at91_eth_data *data)
 	platform_device_register(&at91rm9200_eth_device);
 }
 #else
-void __init at91_add_device_eth(struct at91_eth_data *data) {}
+void __init at91_add_device_eth(struct macb_platform_data *data) {}
 #endif
 
 
@@ -260,7 +260,7 @@ void __init at91_add_device_cf(struct at91_cf_data *data)
 	);
 
 	/* input/irq */
-	if (data->irq_pin) {
+	if (gpio_is_valid(data->irq_pin)) {
 		at91_set_gpio_input(data->irq_pin, 1);
 		at91_set_deglitch(data->irq_pin, 1);
 	}
@@ -268,7 +268,7 @@ void __init at91_add_device_cf(struct at91_cf_data *data)
 	at91_set_deglitch(data->det_pin, 1);
 
 	/* outputs, initially off */
-	if (data->vcc_pin)
+	if (gpio_is_valid(data->vcc_pin))
 		at91_set_gpio_output(data->vcc_pin, 0);
 	at91_set_gpio_output(data->rst_pin, 0);
 
@@ -328,13 +328,13 @@ void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data)
 		return;
 
 	/* input/irq */
-	if (data->det_pin) {
+	if (gpio_is_valid(data->det_pin)) {
 		at91_set_gpio_input(data->det_pin, 1);
 		at91_set_deglitch(data->det_pin, 1);
 	}
-	if (data->wp_pin)
+	if (gpio_is_valid(data->wp_pin))
 		at91_set_gpio_input(data->wp_pin, 1);
-	if (data->vcc_pin)
+	if (gpio_is_valid(data->vcc_pin))
 		at91_set_gpio_output(data->vcc_pin, 0);
 
 	/* CLK */
@@ -419,15 +419,15 @@ void __init at91_add_device_nand(struct atmel_nand_data *data)
 	);
 
 	/* enable pin */
-	if (data->enable_pin)
+	if (gpio_is_valid(data->enable_pin))
 		at91_set_gpio_output(data->enable_pin, 1);
 
 	/* ready/busy pin */
-	if (data->rdy_pin)
+	if (gpio_is_valid(data->rdy_pin))
 		at91_set_gpio_input(data->rdy_pin, 1);
 
 	/* card detect pin */
-	if (data->det_pin)
+	if (gpio_is_valid(data->det_pin))
 		at91_set_gpio_input(data->det_pin, 1);
 
 	at91_set_A_periph(AT91_PIN_PC1, 0);		/* SMOE */
@@ -665,10 +665,24 @@ static void __init at91_add_device_tc(void) { }
  * -------------------------------------------------------------------- */
 
 #if defined(CONFIG_RTC_DRV_AT91RM9200) || defined(CONFIG_RTC_DRV_AT91RM9200_MODULE)
+static struct resource rtc_resources[] = {
+	[0] = {
+		.start	= AT91RM9200_BASE_RTC,
+		.end	= AT91RM9200_BASE_RTC + SZ_256 - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AT91_ID_SYS,
+		.end	= AT91_ID_SYS,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
 static struct platform_device at91rm9200_rtc_device = {
 	.name		= "at91_rtc",
 	.id		= -1,
-	.num_resources	= 0,
+	.resource	= rtc_resources,
+	.num_resources	= ARRAY_SIZE(rtc_resources),
 };
 
 static void __init at91_add_device_rtc(void)
@@ -877,8 +891,8 @@ void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
 #if defined(CONFIG_SERIAL_ATMEL)
 static struct resource dbgu_resources[] = {
 	[0] = {
-		.start	= AT91_BASE_SYS + AT91_DBGU,
-		.end	= AT91_BASE_SYS + AT91_DBGU + SZ_512 - 1,
+		.start	= AT91RM9200_BASE_DBGU,
+		.end	= AT91RM9200_BASE_DBGU + SZ_512 - 1,
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
diff --git a/arch/arm/mach-at91/at91rm9200_time.c b/arch/arm/mach-at91/at91rm9200_time.c
index 1dd69c85dfec..a028cdf8f974 100644
--- a/arch/arm/mach-at91/at91rm9200_time.c
+++ b/arch/arm/mach-at91/at91rm9200_time.c
@@ -32,6 +32,8 @@ static unsigned long last_crtr;
 static u32 irqmask;
 static struct clock_event_device clkevt;
 
+#define RM9200_TIMER_LATCH	((AT91_SLOW_CLOCK + HZ/2) / HZ)
+
 /*
  * The ST_CRTR is updated asynchronously to the master clock ... but
  * the updates as seen by the CPU don't seem to be strictly monotonic.
@@ -74,8 +76,8 @@ static irqreturn_t at91rm9200_timer_interrupt(int irq, void *dev_id)
 	if (sr & AT91_ST_PITS) {
 		u32	crtr = read_CRTR();
 
-		while (((crtr - last_crtr) & AT91_ST_CRTV) >= LATCH) {
-			last_crtr += LATCH;
+		while (((crtr - last_crtr) & AT91_ST_CRTV) >= RM9200_TIMER_LATCH) {
+			last_crtr += RM9200_TIMER_LATCH;
 			clkevt.event_handler(&clkevt);
 		}
 		return IRQ_HANDLED;
@@ -116,7 +118,7 @@ clkevt32k_mode(enum clock_event_mode mode, struct clock_event_device *dev)
 	case CLOCK_EVT_MODE_PERIODIC:
 		/* PIT for periodic irqs; fixed rate of 1/HZ */
 		irqmask = AT91_ST_PITS;
-		at91_sys_write(AT91_ST_PIMR, LATCH);
+		at91_sys_write(AT91_ST_PIMR, RM9200_TIMER_LATCH);
 		break;
 	case CLOCK_EVT_MODE_ONESHOT:
 		/* ALM for oneshot irqs, set by next_event()
diff --git a/arch/arm/mach-at91/at91sam9260.c b/arch/arm/mach-at91/at91sam9260.c
index e76cd49ebc9e..5e46e4a96430 100644
--- a/arch/arm/mach-at91/at91sam9260.c
+++ b/arch/arm/mach-at91/at91sam9260.c
@@ -11,7 +11,6 @@
  */
 
 #include <linux/module.h>
-#include <linux/pm.h>
 
 #include <asm/irq.h>
 #include <asm/mach/arch.h>
@@ -21,11 +20,11 @@
 #include <mach/at91sam9260.h>
 #include <mach/at91_pmc.h>
 #include <mach/at91_rstc.h>
-#include <mach/at91_shdwc.h>
 
 #include "soc.h"
 #include "generic.h"
 #include "clock.h"
+#include "sam9_smc.h"
 
 /* --------------------------------------------------------------------
  *  Clocks
@@ -120,7 +119,7 @@ static struct clk ohci_clk = {
 	.type		= CLK_TYPE_PERIPHERAL,
 };
 static struct clk macb_clk = {
-	.name		= "macb_clk",
+	.name		= "pclk",
 	.pmc_mask	= 1 << AT91SAM9260_ID_EMAC,
 	.type		= CLK_TYPE_PERIPHERAL,
 };
@@ -190,6 +189,8 @@ static struct clk *periph_clocks[] __initdata = {
 };
 
 static struct clk_lookup periph_clocks_lookups[] = {
+	/* One additional fake clock for macb_hclk */
+	CLKDEV_CON_ID("hclk", &macb_clk),
 	CLKDEV_CON_DEV_ID("spi_clk", "atmel_spi.0", &spi0_clk),
 	CLKDEV_CON_DEV_ID("spi_clk", "atmel_spi.1", &spi1_clk),
 	CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.0", &tc0_clk),
@@ -209,6 +210,9 @@ static struct clk_lookup periph_clocks_lookups[] = {
 	CLKDEV_CON_DEV_ID("usart", "fffd8000.serial", &usart5_clk),
 	/* fake hclk clock */
 	CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &ohci_clk),
+	CLKDEV_CON_ID("pioA", &pioA_clk),
+	CLKDEV_CON_ID("pioB", &pioB_clk),
+	CLKDEV_CON_ID("pioC", &pioC_clk),
 };
 
 static struct clk_lookup usart_clocks_lookups[] = {
@@ -270,28 +274,19 @@ void __init at91sam9260_set_console_clock(int id)
  *  GPIO
  * -------------------------------------------------------------------- */
 
-static struct at91_gpio_bank at91sam9260_gpio[] = {
+static struct at91_gpio_bank at91sam9260_gpio[] __initdata = {
 	{
 		.id		= AT91SAM9260_ID_PIOA,
-		.offset		= AT91_PIOA,
-		.clock		= &pioA_clk,
+		.regbase	= AT91SAM9260_BASE_PIOA,
 	}, {
 		.id		= AT91SAM9260_ID_PIOB,
-		.offset		= AT91_PIOB,
-		.clock		= &pioB_clk,
+		.regbase	= AT91SAM9260_BASE_PIOB,
 	}, {
 		.id		= AT91SAM9260_ID_PIOC,
-		.offset		= AT91_PIOC,
-		.clock		= &pioC_clk,
+		.regbase	= AT91SAM9260_BASE_PIOC,
 	}
 };
 
-static void at91sam9260_poweroff(void)
-{
-	at91_sys_write(AT91_SHDW_CR, AT91_SHDW_KEY | AT91_SHDW_SHDW);
-}
-
-
 /* --------------------------------------------------------------------
  *  AT91SAM9260 processor initialization
  * -------------------------------------------------------------------- */
@@ -325,10 +320,16 @@ static void __init at91sam9260_map_io(void)
 	}
 }
 
+static void __init at91sam9260_ioremap_registers(void)
+{
+	at91_ioremap_shdwc(AT91SAM9260_BASE_SHDWC);
+	at91sam926x_ioremap_pit(AT91SAM9260_BASE_PIT);
+	at91sam9_ioremap_smc(0, AT91SAM9260_BASE_SMC);
+}
+
 static void __init at91sam9260_initialize(void)
 {
 	arm_pm_restart = at91sam9_alt_restart;
-	pm_power_off = at91sam9260_poweroff;
 	at91_extern_irq = (1 << AT91SAM9260_ID_IRQ0) | (1 << AT91SAM9260_ID_IRQ1)
 			| (1 << AT91SAM9260_ID_IRQ2);
 
@@ -381,6 +382,7 @@ static unsigned int at91sam9260_default_irq_priority[NR_AIC_IRQS] __initdata = {
 struct at91_init_soc __initdata at91sam9260_soc = {
 	.map_io = at91sam9260_map_io,
 	.default_irq_priority = at91sam9260_default_irq_priority,
+	.ioremap_registers = at91sam9260_ioremap_registers,
 	.register_clocks = at91sam9260_register_clocks,
 	.init = at91sam9260_initialize,
 };
diff --git a/arch/arm/mach-at91/at91sam9260_devices.c b/arch/arm/mach-at91/at91sam9260_devices.c
index 629fa9774972..642ccb6d26b2 100644
--- a/arch/arm/mach-at91/at91sam9260_devices.c
+++ b/arch/arm/mach-at91/at91sam9260_devices.c
@@ -115,7 +115,7 @@ void __init at91_add_device_udc(struct at91_udc_data *data)
 	if (!data)
 		return;
 
-	if (data->vbus_pin) {
+	if (gpio_is_valid(data->vbus_pin)) {
 		at91_set_gpio_input(data->vbus_pin, 0);
 		at91_set_deglitch(data->vbus_pin, 1);
 	}
@@ -136,7 +136,7 @@ void __init at91_add_device_udc(struct at91_udc_data *data) {}
 
 #if defined(CONFIG_MACB) || defined(CONFIG_MACB_MODULE)
 static u64 eth_dmamask = DMA_BIT_MASK(32);
-static struct at91_eth_data eth_data;
+static struct macb_platform_data eth_data;
 
 static struct resource eth_resources[] = {
 	[0] = {
@@ -163,12 +163,12 @@ static struct platform_device at91sam9260_eth_device = {
 	.num_resources	= ARRAY_SIZE(eth_resources),
 };
 
-void __init at91_add_device_eth(struct at91_eth_data *data)
+void __init at91_add_device_eth(struct macb_platform_data *data)
 {
 	if (!data)
 		return;
 
-	if (data->phy_irq_pin) {
+	if (gpio_is_valid(data->phy_irq_pin)) {
 		at91_set_gpio_input(data->phy_irq_pin, 0);
 		at91_set_deglitch(data->phy_irq_pin, 1);
 	}
@@ -200,7 +200,7 @@ void __init at91_add_device_eth(struct at91_eth_data *data)
 	platform_device_register(&at91sam9260_eth_device);
 }
 #else
-void __init at91_add_device_eth(struct at91_eth_data *data) {}
+void __init at91_add_device_eth(struct macb_platform_data *data) {}
 #endif
 
 
@@ -243,13 +243,13 @@ void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data)
 		return;
 
 	/* input/irq */
-	if (data->det_pin) {
+	if (gpio_is_valid(data->det_pin)) {
 		at91_set_gpio_input(data->det_pin, 1);
 		at91_set_deglitch(data->det_pin, 1);
 	}
-	if (data->wp_pin)
+	if (gpio_is_valid(data->wp_pin))
 		at91_set_gpio_input(data->wp_pin, 1);
-	if (data->vcc_pin)
+	if (gpio_is_valid(data->vcc_pin))
 		at91_set_gpio_output(data->vcc_pin, 0);
 
 	/* CLK */
@@ -330,11 +330,11 @@ void __init at91_add_device_mci(short mmc_id, struct mci_platform_data *data)
 	for (i = 0; i < ATMCI_MAX_NR_SLOTS; i++) {
 		if (data->slot[i].bus_width) {
 			/* input/irq */
-			if (data->slot[i].detect_pin) {
+			if (gpio_is_valid(data->slot[i].detect_pin)) {
 				at91_set_gpio_input(data->slot[i].detect_pin, 1);
 				at91_set_deglitch(data->slot[i].detect_pin, 1);
 			}
-			if (data->slot[i].wp_pin)
+			if (gpio_is_valid(data->slot[i].wp_pin))
 				at91_set_gpio_input(data->slot[i].wp_pin, 1);
 
 			switch (i) {
@@ -399,8 +399,8 @@ static struct resource nand_resources[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= AT91_BASE_SYS + AT91_ECC,
-		.end	= AT91_BASE_SYS + AT91_ECC + SZ_512 - 1,
+		.start	= AT91SAM9260_BASE_ECC,
+		.end	= AT91SAM9260_BASE_ECC + SZ_512 - 1,
 		.flags	= IORESOURCE_MEM,
 	}
 };
@@ -426,15 +426,15 @@ void __init at91_add_device_nand(struct atmel_nand_data *data)
 	at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA);
 
 	/* enable pin */
-	if (data->enable_pin)
+	if (gpio_is_valid(data->enable_pin))
 		at91_set_gpio_output(data->enable_pin, 1);
 
 	/* ready/busy pin */
-	if (data->rdy_pin)
+	if (gpio_is_valid(data->rdy_pin))
 		at91_set_gpio_input(data->rdy_pin, 1);
 
 	/* card detect pin */
-	if (data->det_pin)
+	if (gpio_is_valid(data->det_pin))
 		at91_set_gpio_input(data->det_pin, 1);
 
 	nand_data = *data;
@@ -714,8 +714,8 @@ static void __init at91_add_device_tc(void) { }
 
 static struct resource rtt_resources[] = {
 	{
-		.start	= AT91_BASE_SYS + AT91_RTT,
-		.end	= AT91_BASE_SYS + AT91_RTT + SZ_16 - 1,
+		.start	= AT91SAM9260_BASE_RTT,
+		.end	= AT91SAM9260_BASE_RTT + SZ_16 - 1,
 		.flags	= IORESOURCE_MEM,
 	}
 };
@@ -738,10 +738,19 @@ static void __init at91_add_device_rtt(void)
  * -------------------------------------------------------------------- */
 
 #if defined(CONFIG_AT91SAM9X_WATCHDOG) || defined(CONFIG_AT91SAM9X_WATCHDOG_MODULE)
+static struct resource wdt_resources[] = {
+	{
+		.start	= AT91SAM9260_BASE_WDT,
+		.end	= AT91SAM9260_BASE_WDT + SZ_16 - 1,
+		.flags	= IORESOURCE_MEM,
+	}
+};
+
 static struct platform_device at91sam9260_wdt_device = {
 	.name		= "at91_wdt",
 	.id		= -1,
-	.num_resources	= 0,
+	.resource	= wdt_resources,
+	.num_resources	= ARRAY_SIZE(wdt_resources),
 };
 
 static void __init at91_add_device_watchdog(void)
@@ -837,8 +846,8 @@ void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
 #if defined(CONFIG_SERIAL_ATMEL)
 static struct resource dbgu_resources[] = {
 	[0] = {
-		.start	= AT91_BASE_SYS + AT91_DBGU,
-		.end	= AT91_BASE_SYS + AT91_DBGU + SZ_512 - 1,
+		.start	= AT91SAM9260_BASE_DBGU,
+		.end	= AT91SAM9260_BASE_DBGU + SZ_512 - 1,
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
@@ -1281,17 +1290,17 @@ void __init at91_add_device_cf(struct at91_cf_data *data)
 
 	at91_sys_write(AT91_MATRIX_EBICSA, csa);
 
-	if (data->rst_pin) {
+	if (gpio_is_valid(data->rst_pin)) {
 		at91_set_multi_drive(data->rst_pin, 0);
 		at91_set_gpio_output(data->rst_pin, 1);
 	}
 
-	if (data->irq_pin) {
+	if (gpio_is_valid(data->irq_pin)) {
 		at91_set_gpio_input(data->irq_pin, 0);
 		at91_set_deglitch(data->irq_pin, 1);
 	}
 
-	if (data->det_pin) {
+	if (gpio_is_valid(data->det_pin)) {
 		at91_set_gpio_input(data->det_pin, 0);
 		at91_set_deglitch(data->det_pin, 1);
 	}
diff --git a/arch/arm/mach-at91/at91sam9261.c b/arch/arm/mach-at91/at91sam9261.c
index 19ac7c0729a0..b85b9ea60170 100644
--- a/arch/arm/mach-at91/at91sam9261.c
+++ b/arch/arm/mach-at91/at91sam9261.c
@@ -11,7 +11,6 @@
  */
 
 #include <linux/module.h>
-#include <linux/pm.h>
 
 #include <asm/irq.h>
 #include <asm/mach/arch.h>
@@ -20,11 +19,11 @@
 #include <mach/at91sam9261.h>
 #include <mach/at91_pmc.h>
 #include <mach/at91_rstc.h>
-#include <mach/at91_shdwc.h>
 
 #include "soc.h"
 #include "generic.h"
 #include "clock.h"
+#include "sam9_smc.h"
 
 /* --------------------------------------------------------------------
  *  Clocks
@@ -176,6 +175,9 @@ static struct clk_lookup periph_clocks_lookups[] = {
 	CLKDEV_CON_DEV_ID("pclk", "ssc.1", &ssc1_clk),
 	CLKDEV_CON_DEV_ID("pclk", "ssc.2", &ssc2_clk),
 	CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &hck0),
+	CLKDEV_CON_ID("pioA", &pioA_clk),
+	CLKDEV_CON_ID("pioB", &pioB_clk),
+	CLKDEV_CON_ID("pioC", &pioC_clk),
 };
 
 static struct clk_lookup usart_clocks_lookups[] = {
@@ -251,28 +253,19 @@ void __init at91sam9261_set_console_clock(int id)
  *  GPIO
  * -------------------------------------------------------------------- */
 
-static struct at91_gpio_bank at91sam9261_gpio[] = {
+static struct at91_gpio_bank at91sam9261_gpio[] __initdata = {
 	{
 		.id		= AT91SAM9261_ID_PIOA,
-		.offset		= AT91_PIOA,
-		.clock		= &pioA_clk,
+		.regbase	= AT91SAM9261_BASE_PIOA,
 	}, {
 		.id		= AT91SAM9261_ID_PIOB,
-		.offset		= AT91_PIOB,
-		.clock		= &pioB_clk,
+		.regbase	= AT91SAM9261_BASE_PIOB,
 	}, {
 		.id		= AT91SAM9261_ID_PIOC,
-		.offset		= AT91_PIOC,
-		.clock		= &pioC_clk,
+		.regbase	= AT91SAM9261_BASE_PIOC,
 	}
 };
 
-static void at91sam9261_poweroff(void)
-{
-	at91_sys_write(AT91_SHDW_CR, AT91_SHDW_KEY | AT91_SHDW_SHDW);
-}
-
-
 /* --------------------------------------------------------------------
  *  AT91SAM9261 processor initialization
  * -------------------------------------------------------------------- */
@@ -285,10 +278,16 @@ static void __init at91sam9261_map_io(void)
 		at91_init_sram(0, AT91SAM9261_SRAM_BASE, AT91SAM9261_SRAM_SIZE);
 }
 
+static void __init at91sam9261_ioremap_registers(void)
+{
+	at91_ioremap_shdwc(AT91SAM9261_BASE_SHDWC);
+	at91sam926x_ioremap_pit(AT91SAM9261_BASE_PIT);
+	at91sam9_ioremap_smc(0, AT91SAM9261_BASE_SMC);
+}
+
 static void __init at91sam9261_initialize(void)
 {
 	arm_pm_restart = at91sam9_alt_restart;
-	pm_power_off = at91sam9261_poweroff;
 	at91_extern_irq = (1 << AT91SAM9261_ID_IRQ0) | (1 << AT91SAM9261_ID_IRQ1)
 			| (1 << AT91SAM9261_ID_IRQ2);
 
@@ -341,6 +340,7 @@ static unsigned int at91sam9261_default_irq_priority[NR_AIC_IRQS] __initdata = {
 struct at91_init_soc __initdata at91sam9261_soc = {
 	.map_io = at91sam9261_map_io,
 	.default_irq_priority = at91sam9261_default_irq_priority,
+	.ioremap_registers = at91sam9261_ioremap_registers,
 	.register_clocks = at91sam9261_register_clocks,
 	.init = at91sam9261_initialize,
 };
diff --git a/arch/arm/mach-at91/at91sam9261_devices.c b/arch/arm/mach-at91/at91sam9261_devices.c
index a178b58b0b9c..fc59cbdb0e3c 100644
--- a/arch/arm/mach-at91/at91sam9261_devices.c
+++ b/arch/arm/mach-at91/at91sam9261_devices.c
@@ -118,7 +118,7 @@ void __init at91_add_device_udc(struct at91_udc_data *data)
 	if (!data)
 		return;
 
-	if (data->vbus_pin) {
+	if (gpio_is_valid(data->vbus_pin)) {
 		at91_set_gpio_input(data->vbus_pin, 0);
 		at91_set_deglitch(data->vbus_pin, 1);
 	}
@@ -171,13 +171,13 @@ void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data)
 		return;
 
 	/* input/irq */
-	if (data->det_pin) {
+	if (gpio_is_valid(data->det_pin)) {
 		at91_set_gpio_input(data->det_pin, 1);
 		at91_set_deglitch(data->det_pin, 1);
 	}
-	if (data->wp_pin)
+	if (gpio_is_valid(data->wp_pin))
 		at91_set_gpio_input(data->wp_pin, 1);
-	if (data->vcc_pin)
+	if (gpio_is_valid(data->vcc_pin))
 		at91_set_gpio_output(data->vcc_pin, 0);
 
 	/* CLK */
@@ -240,15 +240,15 @@ void __init at91_add_device_nand(struct atmel_nand_data *data)
 	at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA);
 
 	/* enable pin */
-	if (data->enable_pin)
+	if (gpio_is_valid(data->enable_pin))
 		at91_set_gpio_output(data->enable_pin, 1);
 
 	/* ready/busy pin */
-	if (data->rdy_pin)
+	if (gpio_is_valid(data->rdy_pin))
 		at91_set_gpio_input(data->rdy_pin, 1);
 
 	/* card detect pin */
-	if (data->det_pin)
+	if (gpio_is_valid(data->det_pin))
 		at91_set_gpio_input(data->det_pin, 1);
 
 	at91_set_A_periph(AT91_PIN_PC0, 0);		/* NANDOE */
@@ -600,8 +600,8 @@ static void __init at91_add_device_tc(void) { }
 
 static struct resource rtt_resources[] = {
 	{
-		.start	= AT91_BASE_SYS + AT91_RTT,
-		.end	= AT91_BASE_SYS + AT91_RTT + SZ_16 - 1,
+		.start	= AT91SAM9261_BASE_RTT,
+		.end	= AT91SAM9261_BASE_RTT + SZ_16 - 1,
 		.flags	= IORESOURCE_MEM,
 	}
 };
@@ -624,10 +624,19 @@ static void __init at91_add_device_rtt(void)
  * -------------------------------------------------------------------- */
 
 #if defined(CONFIG_AT91SAM9X_WATCHDOG) || defined(CONFIG_AT91SAM9X_WATCHDOG_MODULE)
+static struct resource wdt_resources[] = {
+	{
+		.start	= AT91SAM9261_BASE_WDT,
+		.end	= AT91SAM9261_BASE_WDT + SZ_16 - 1,
+		.flags	= IORESOURCE_MEM,
+	}
+};
+
 static struct platform_device at91sam9261_wdt_device = {
 	.name		= "at91_wdt",
 	.id		= -1,
-	.num_resources	= 0,
+	.resource	= wdt_resources,
+	.num_resources	= ARRAY_SIZE(wdt_resources),
 };
 
 static void __init at91_add_device_watchdog(void)
@@ -816,8 +825,8 @@ void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
 #if defined(CONFIG_SERIAL_ATMEL)
 static struct resource dbgu_resources[] = {
 	[0] = {
-		.start	= AT91_BASE_SYS + AT91_DBGU,
-		.end	= AT91_BASE_SYS + AT91_DBGU + SZ_512 - 1,
+		.start	= AT91SAM9261_BASE_DBGU,
+		.end	= AT91SAM9261_BASE_DBGU + SZ_512 - 1,
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
diff --git a/arch/arm/mach-at91/at91sam9263.c b/arch/arm/mach-at91/at91sam9263.c
index 50d016310031..79e3669b1117 100644
--- a/arch/arm/mach-at91/at91sam9263.c
+++ b/arch/arm/mach-at91/at91sam9263.c
@@ -11,7 +11,6 @@
  */
 
 #include <linux/module.h>
-#include <linux/pm.h>
 
 #include <asm/irq.h>
 #include <asm/mach/arch.h>
@@ -19,11 +18,11 @@
 #include <mach/at91sam9263.h>
 #include <mach/at91_pmc.h>
 #include <mach/at91_rstc.h>
-#include <mach/at91_shdwc.h>
 
 #include "soc.h"
 #include "generic.h"
 #include "clock.h"
+#include "sam9_smc.h"
 
 /* --------------------------------------------------------------------
  *  Clocks
@@ -118,7 +117,7 @@ static struct clk pwm_clk = {
 	.type		= CLK_TYPE_PERIPHERAL,
 };
 static struct clk macb_clk = {
-	.name		= "macb_clk",
+	.name		= "pclk",
 	.pmc_mask	= 1 << AT91SAM9263_ID_EMAC,
 	.type		= CLK_TYPE_PERIPHERAL,
 };
@@ -182,6 +181,8 @@ static struct clk *periph_clocks[] __initdata = {
 };
 
 static struct clk_lookup periph_clocks_lookups[] = {
+	/* One additional fake clock for macb_hclk */
+	CLKDEV_CON_ID("hclk", &macb_clk),
 	CLKDEV_CON_DEV_ID("pclk", "ssc.0", &ssc0_clk),
 	CLKDEV_CON_DEV_ID("pclk", "ssc.1", &ssc1_clk),
 	CLKDEV_CON_DEV_ID("mci_clk", "at91_mci.0", &mmc0_clk),
@@ -191,6 +192,11 @@ static struct clk_lookup periph_clocks_lookups[] = {
 	CLKDEV_CON_DEV_ID("t0_clk", "atmel_tcb.0", &tcb_clk),
 	/* fake hclk clock */
 	CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &ohci_clk),
+	CLKDEV_CON_ID("pioA", &pioA_clk),
+	CLKDEV_CON_ID("pioB", &pioB_clk),
+	CLKDEV_CON_ID("pioC", &pioCDE_clk),
+	CLKDEV_CON_ID("pioD", &pioCDE_clk),
+	CLKDEV_CON_ID("pioE", &pioCDE_clk),
 };
 
 static struct clk_lookup usart_clocks_lookups[] = {
@@ -263,36 +269,25 @@ void __init at91sam9263_set_console_clock(int id)
  *  GPIO
  * -------------------------------------------------------------------- */
 
-static struct at91_gpio_bank at91sam9263_gpio[] = {
+static struct at91_gpio_bank at91sam9263_gpio[] __initdata = {
 	{
 		.id		= AT91SAM9263_ID_PIOA,
-		.offset		= AT91_PIOA,
-		.clock		= &pioA_clk,
+		.regbase	= AT91SAM9263_BASE_PIOA,
 	}, {
 		.id		= AT91SAM9263_ID_PIOB,
-		.offset		= AT91_PIOB,
-		.clock		= &pioB_clk,
+		.regbase	= AT91SAM9263_BASE_PIOB,
 	}, {
 		.id		= AT91SAM9263_ID_PIOCDE,
-		.offset		= AT91_PIOC,
-		.clock		= &pioCDE_clk,
+		.regbase	= AT91SAM9263_BASE_PIOC,
 	}, {
 		.id		= AT91SAM9263_ID_PIOCDE,
-		.offset		= AT91_PIOD,
-		.clock		= &pioCDE_clk,
+		.regbase	= AT91SAM9263_BASE_PIOD,
 	}, {
 		.id		= AT91SAM9263_ID_PIOCDE,
-		.offset		= AT91_PIOE,
-		.clock		= &pioCDE_clk,
+		.regbase	= AT91SAM9263_BASE_PIOE,
 	}
 };
 
-static void at91sam9263_poweroff(void)
-{
-	at91_sys_write(AT91_SHDW_CR, AT91_SHDW_KEY | AT91_SHDW_SHDW);
-}
-
-
 /* --------------------------------------------------------------------
  *  AT91SAM9263 processor initialization
  * -------------------------------------------------------------------- */
@@ -303,10 +298,17 @@ static void __init at91sam9263_map_io(void)
 	at91_init_sram(1, AT91SAM9263_SRAM1_BASE, AT91SAM9263_SRAM1_SIZE);
 }
 
+static void __init at91sam9263_ioremap_registers(void)
+{
+	at91_ioremap_shdwc(AT91SAM9263_BASE_SHDWC);
+	at91sam926x_ioremap_pit(AT91SAM9263_BASE_PIT);
+	at91sam9_ioremap_smc(0, AT91SAM9263_BASE_SMC0);
+	at91sam9_ioremap_smc(1, AT91SAM9263_BASE_SMC1);
+}
+
 static void __init at91sam9263_initialize(void)
 {
 	arm_pm_restart = at91sam9_alt_restart;
-	pm_power_off = at91sam9263_poweroff;
 	at91_extern_irq = (1 << AT91SAM9263_ID_IRQ0) | (1 << AT91SAM9263_ID_IRQ1);
 
 	/* Register GPIO subsystem */
@@ -358,6 +360,7 @@ static unsigned int at91sam9263_default_irq_priority[NR_AIC_IRQS] __initdata = {
 struct at91_init_soc __initdata at91sam9263_soc = {
 	.map_io = at91sam9263_map_io,
 	.default_irq_priority = at91sam9263_default_irq_priority,
+	.ioremap_registers = at91sam9263_ioremap_registers,
 	.register_clocks = at91sam9263_register_clocks,
 	.init = at91sam9263_initialize,
 };
diff --git a/arch/arm/mach-at91/at91sam9263_devices.c b/arch/arm/mach-at91/at91sam9263_devices.c
index d5fbac9ff4fa..7b46b2787022 100644
--- a/arch/arm/mach-at91/at91sam9263_devices.c
+++ b/arch/arm/mach-at91/at91sam9263_devices.c
@@ -70,7 +70,7 @@ void __init at91_add_device_usbh(struct at91_usbh_data *data)
 
 	/* Enable VBus control for UHP ports */
 	for (i = 0; i < data->ports; i++) {
-		if (data->vbus_pin[i])
+		if (gpio_is_valid(data->vbus_pin[i]))
 			at91_set_gpio_output(data->vbus_pin[i], 0);
 	}
 
@@ -123,7 +123,7 @@ void __init at91_add_device_udc(struct at91_udc_data *data)
 	if (!data)
 		return;
 
-	if (data->vbus_pin) {
+	if (gpio_is_valid(data->vbus_pin)) {
 		at91_set_gpio_input(data->vbus_pin, 0);
 		at91_set_deglitch(data->vbus_pin, 1);
 	}
@@ -144,7 +144,7 @@ void __init at91_add_device_udc(struct at91_udc_data *data) {}
 
 #if defined(CONFIG_MACB) || defined(CONFIG_MACB_MODULE)
 static u64 eth_dmamask = DMA_BIT_MASK(32);
-static struct at91_eth_data eth_data;
+static struct macb_platform_data eth_data;
 
 static struct resource eth_resources[] = {
 	[0] = {
@@ -171,12 +171,12 @@ static struct platform_device at91sam9263_eth_device = {
 	.num_resources	= ARRAY_SIZE(eth_resources),
 };
 
-void __init at91_add_device_eth(struct at91_eth_data *data)
+void __init at91_add_device_eth(struct macb_platform_data *data)
 {
 	if (!data)
 		return;
 
-	if (data->phy_irq_pin) {
+	if (gpio_is_valid(data->phy_irq_pin)) {
 		at91_set_gpio_input(data->phy_irq_pin, 0);
 		at91_set_deglitch(data->phy_irq_pin, 1);
 	}
@@ -208,7 +208,7 @@ void __init at91_add_device_eth(struct at91_eth_data *data)
 	platform_device_register(&at91sam9263_eth_device);
 }
 #else
-void __init at91_add_device_eth(struct at91_eth_data *data) {}
+void __init at91_add_device_eth(struct macb_platform_data *data) {}
 #endif
 
 
@@ -276,13 +276,13 @@ void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data)
 		return;
 
 	/* input/irq */
-	if (data->det_pin) {
+	if (gpio_is_valid(data->det_pin)) {
 		at91_set_gpio_input(data->det_pin, 1);
 		at91_set_deglitch(data->det_pin, 1);
 	}
-	if (data->wp_pin)
+	if (gpio_is_valid(data->wp_pin))
 		at91_set_gpio_input(data->wp_pin, 1);
-	if (data->vcc_pin)
+	if (gpio_is_valid(data->vcc_pin))
 		at91_set_gpio_output(data->vcc_pin, 0);
 
 	if (mmc_id == 0) {		/* MCI0 */
@@ -430,17 +430,17 @@ void __init at91_add_device_cf(struct at91_cf_data *data)
 	}
 	at91_sys_write(AT91_MATRIX_EBI0CSA, ebi0_csa);
 
-	if (data->det_pin) {
+	if (gpio_is_valid(data->det_pin)) {
 		at91_set_gpio_input(data->det_pin, 1);
 		at91_set_deglitch(data->det_pin, 1);
 	}
 
-	if (data->irq_pin) {
+	if (gpio_is_valid(data->irq_pin)) {
 		at91_set_gpio_input(data->irq_pin, 1);
 		at91_set_deglitch(data->irq_pin, 1);
 	}
 
-	if (data->vcc_pin)
+	if (gpio_is_valid(data->vcc_pin))
 		/* initially off */
 		at91_set_gpio_output(data->vcc_pin, 0);
 
@@ -473,8 +473,8 @@ static struct resource nand_resources[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= AT91_BASE_SYS + AT91_ECC0,
-		.end	= AT91_BASE_SYS + AT91_ECC0 + SZ_512 - 1,
+		.start	= AT91SAM9263_BASE_ECC0,
+		.end	= AT91SAM9263_BASE_ECC0 + SZ_512 - 1,
 		.flags	= IORESOURCE_MEM,
 	}
 };
@@ -500,15 +500,15 @@ void __init at91_add_device_nand(struct atmel_nand_data *data)
 	at91_sys_write(AT91_MATRIX_EBI0CSA, csa | AT91_MATRIX_EBI0_CS3A_SMC_SMARTMEDIA);
 
 	/* enable pin */
-	if (data->enable_pin)
+	if (gpio_is_valid(data->enable_pin))
 		at91_set_gpio_output(data->enable_pin, 1);
 
 	/* ready/busy pin */
-	if (data->rdy_pin)
+	if (gpio_is_valid(data->rdy_pin))
 		at91_set_gpio_input(data->rdy_pin, 1);
 
 	/* card detect pin */
-	if (data->det_pin)
+	if (gpio_is_valid(data->det_pin))
 		at91_set_gpio_input(data->det_pin, 1);
 
 	nand_data = *data;
@@ -749,7 +749,7 @@ void __init at91_add_device_ac97(struct ac97c_platform_data *data)
 	at91_set_A_periph(AT91_PIN_PB3, 0);	/* AC97RX */
 
 	/* reset */
-	if (data->reset_pin)
+	if (gpio_is_valid(data->reset_pin))
 		at91_set_gpio_output(data->reset_pin, 0);
 
 	ac97_data = *data;
@@ -956,8 +956,8 @@ static void __init at91_add_device_tc(void) { }
 
 static struct resource rtt0_resources[] = {
 	{
-		.start	= AT91_BASE_SYS + AT91_RTT0,
-		.end	= AT91_BASE_SYS + AT91_RTT0 + SZ_16 - 1,
+		.start	= AT91SAM9263_BASE_RTT0,
+		.end	= AT91SAM9263_BASE_RTT0 + SZ_16 - 1,
 		.flags	= IORESOURCE_MEM,
 	}
 };
@@ -971,8 +971,8 @@ static struct platform_device at91sam9263_rtt0_device = {
 
 static struct resource rtt1_resources[] = {
 	{
-		.start	= AT91_BASE_SYS + AT91_RTT1,
-		.end	= AT91_BASE_SYS + AT91_RTT1 + SZ_16 - 1,
+		.start	= AT91SAM9263_BASE_RTT1,
+		.end	= AT91SAM9263_BASE_RTT1 + SZ_16 - 1,
 		.flags	= IORESOURCE_MEM,
 	}
 };
@@ -996,10 +996,19 @@ static void __init at91_add_device_rtt(void)
  * -------------------------------------------------------------------- */
 
 #if defined(CONFIG_AT91SAM9X_WATCHDOG) || defined(CONFIG_AT91SAM9X_WATCHDOG_MODULE)
+static struct resource wdt_resources[] = {
+	{
+		.start	= AT91SAM9263_BASE_WDT,
+		.end	= AT91SAM9263_BASE_WDT + SZ_16 - 1,
+		.flags	= IORESOURCE_MEM,
+	}
+};
+
 static struct platform_device at91sam9263_wdt_device = {
 	.name		= "at91_wdt",
 	.id		= -1,
-	.num_resources	= 0,
+	.resource	= wdt_resources,
+	.num_resources	= ARRAY_SIZE(wdt_resources),
 };
 
 static void __init at91_add_device_watchdog(void)
@@ -1196,8 +1205,8 @@ void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
 
 static struct resource dbgu_resources[] = {
 	[0] = {
-		.start	= AT91_BASE_SYS + AT91_DBGU,
-		.end	= AT91_BASE_SYS + AT91_DBGU + SZ_512 - 1,
+		.start	= AT91SAM9263_BASE_DBGU,
+		.end	= AT91SAM9263_BASE_DBGU + SZ_512 - 1,
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
diff --git a/arch/arm/mach-at91/at91sam926x_time.c b/arch/arm/mach-at91/at91sam926x_time.c
index 4ba85499fa97..d89ead740a99 100644
--- a/arch/arm/mach-at91/at91sam926x_time.c
+++ b/arch/arm/mach-at91/at91sam926x_time.c
@@ -25,7 +25,17 @@
 
 static u32 pit_cycle;		/* write-once */
 static u32 pit_cnt;		/* access only w/system irq blocked */
+static void __iomem *pit_base_addr __read_mostly;
 
+static inline unsigned int pit_read(unsigned int reg_offset)
+{
+	return __raw_readl(pit_base_addr + reg_offset);
+}
+
+static inline void pit_write(unsigned int reg_offset, unsigned long value)
+{
+	__raw_writel(value, pit_base_addr + reg_offset);
+}
 
 /*
  * Clocksource:  just a monotonic counter of MCK/16 cycles.
@@ -39,7 +49,7 @@ static cycle_t read_pit_clk(struct clocksource *cs)
 
 	raw_local_irq_save(flags);
 	elapsed = pit_cnt;
-	t = at91_sys_read(AT91_PIT_PIIR);
+	t = pit_read(AT91_PIT_PIIR);
 	raw_local_irq_restore(flags);
 
 	elapsed += PIT_PICNT(t) * pit_cycle;
@@ -64,8 +74,8 @@ pit_clkevt_mode(enum clock_event_mode mode, struct clock_event_device *dev)
 	switch (mode) {
 	case CLOCK_EVT_MODE_PERIODIC:
 		/* update clocksource counter */
-		pit_cnt += pit_cycle * PIT_PICNT(at91_sys_read(AT91_PIT_PIVR));
-		at91_sys_write(AT91_PIT_MR, (pit_cycle - 1) | AT91_PIT_PITEN
+		pit_cnt += pit_cycle * PIT_PICNT(pit_read(AT91_PIT_PIVR));
+		pit_write(AT91_PIT_MR, (pit_cycle - 1) | AT91_PIT_PITEN
 				| AT91_PIT_PITIEN);
 		break;
 	case CLOCK_EVT_MODE_ONESHOT:
@@ -74,7 +84,7 @@ pit_clkevt_mode(enum clock_event_mode mode, struct clock_event_device *dev)
 	case CLOCK_EVT_MODE_SHUTDOWN:
 	case CLOCK_EVT_MODE_UNUSED:
 		/* disable irq, leaving the clocksource active */
-		at91_sys_write(AT91_PIT_MR, (pit_cycle - 1) | AT91_PIT_PITEN);
+		pit_write(AT91_PIT_MR, (pit_cycle - 1) | AT91_PIT_PITEN);
 		break;
 	case CLOCK_EVT_MODE_RESUME:
 		break;
@@ -103,11 +113,11 @@ static irqreturn_t at91sam926x_pit_interrupt(int irq, void *dev_id)
 
 	/* The PIT interrupt may be disabled, and is shared */
 	if ((pit_clkevt.mode == CLOCK_EVT_MODE_PERIODIC)
-			&& (at91_sys_read(AT91_PIT_SR) & AT91_PIT_PITS)) {
+			&& (pit_read(AT91_PIT_SR) & AT91_PIT_PITS)) {
 		unsigned nr_ticks;
 
 		/* Get number of ticks performed before irq, and ack it */
-		nr_ticks = PIT_PICNT(at91_sys_read(AT91_PIT_PIVR));
+		nr_ticks = PIT_PICNT(pit_read(AT91_PIT_PIVR));
 		do {
 			pit_cnt += pit_cycle;
 			pit_clkevt.event_handler(&pit_clkevt);
@@ -129,14 +139,14 @@ static struct irqaction at91sam926x_pit_irq = {
 static void at91sam926x_pit_reset(void)
 {
 	/* Disable timer and irqs */
-	at91_sys_write(AT91_PIT_MR, 0);
+	pit_write(AT91_PIT_MR, 0);
 
 	/* Clear any pending interrupts, wait for PIT to stop counting */
-	while (PIT_CPIV(at91_sys_read(AT91_PIT_PIVR)) != 0)
+	while (PIT_CPIV(pit_read(AT91_PIT_PIVR)) != 0)
 		cpu_relax();
 
 	/* Start PIT but don't enable IRQ */
-	at91_sys_write(AT91_PIT_MR, (pit_cycle - 1) | AT91_PIT_PITEN);
+	pit_write(AT91_PIT_MR, (pit_cycle - 1) | AT91_PIT_PITEN);
 }
 
 /*
@@ -178,7 +188,15 @@ static void __init at91sam926x_pit_init(void)
 static void at91sam926x_pit_suspend(void)
 {
 	/* Disable timer */
-	at91_sys_write(AT91_PIT_MR, 0);
+	pit_write(AT91_PIT_MR, 0);
+}
+
+void __init at91sam926x_ioremap_pit(u32 addr)
+{
+	pit_base_addr = ioremap(addr, 16);
+
+	if (!pit_base_addr)
+		panic("Impossible to ioremap PIT\n");
 }
 
 struct sys_timer at91sam926x_timer = {
diff --git a/arch/arm/mach-at91/at91sam9g45.c b/arch/arm/mach-at91/at91sam9g45.c
index ff21f7a60c63..7032dd32cdf0 100644
--- a/arch/arm/mach-at91/at91sam9g45.c
+++ b/arch/arm/mach-at91/at91sam9g45.c
@@ -11,7 +11,6 @@
  */
 
 #include <linux/module.h>
-#include <linux/pm.h>
 #include <linux/dma-mapping.h>
 
 #include <asm/irq.h>
@@ -20,12 +19,12 @@
 #include <mach/at91sam9g45.h>
 #include <mach/at91_pmc.h>
 #include <mach/at91_rstc.h>
-#include <mach/at91_shdwc.h>
 #include <mach/cpu.h>
 
 #include "soc.h"
 #include "generic.h"
 #include "clock.h"
+#include "sam9_smc.h"
 
 /* --------------------------------------------------------------------
  *  Clocks
@@ -150,7 +149,7 @@ static struct clk ac97_clk = {
 	.type		= CLK_TYPE_PERIPHERAL,
 };
 static struct clk macb_clk = {
-	.name		= "macb_clk",
+	.name		= "pclk",
 	.pmc_mask	= 1 << AT91SAM9G45_ID_EMAC,
 	.type		= CLK_TYPE_PERIPHERAL,
 };
@@ -209,6 +208,8 @@ static struct clk *periph_clocks[] __initdata = {
 };
 
 static struct clk_lookup periph_clocks_lookups[] = {
+	/* One additional fake clock for macb_hclk */
+	CLKDEV_CON_ID("hclk", &macb_clk),
 	/* One additional fake clock for ohci */
 	CLKDEV_CON_ID("ohci_clk", &uhphs_clk),
 	CLKDEV_CON_DEV_ID("ehci_clk", "atmel-ehci", &uhphs_clk),
@@ -231,6 +232,11 @@ static struct clk_lookup periph_clocks_lookups[] = {
 	CLKDEV_CON_DEV_ID("usart", "fff98000.serial", &usart3_clk),
 	/* fake hclk clock */
 	CLKDEV_CON_DEV_ID("hclk", "at91_ohci", &uhphs_clk),
+	CLKDEV_CON_ID("pioA", &pioA_clk),
+	CLKDEV_CON_ID("pioB", &pioB_clk),
+	CLKDEV_CON_ID("pioC", &pioC_clk),
+	CLKDEV_CON_ID("pioD", &pioDE_clk),
+	CLKDEV_CON_ID("pioE", &pioDE_clk),
 };
 
 static struct clk_lookup usart_clocks_lookups[] = {
@@ -293,27 +299,22 @@ void __init at91sam9g45_set_console_clock(int id)
  *  GPIO
  * -------------------------------------------------------------------- */
 
-static struct at91_gpio_bank at91sam9g45_gpio[] = {
+static struct at91_gpio_bank at91sam9g45_gpio[] __initdata = {
 	{
 		.id		= AT91SAM9G45_ID_PIOA,
-		.offset		= AT91_PIOA,
-		.clock		= &pioA_clk,
+		.regbase	= AT91SAM9G45_BASE_PIOA,
 	}, {
 		.id		= AT91SAM9G45_ID_PIOB,
-		.offset		= AT91_PIOB,
-		.clock		= &pioB_clk,
+		.regbase	= AT91SAM9G45_BASE_PIOB,
 	}, {
 		.id		= AT91SAM9G45_ID_PIOC,
-		.offset		= AT91_PIOC,
-		.clock		= &pioC_clk,
+		.regbase	= AT91SAM9G45_BASE_PIOC,
 	}, {
 		.id		= AT91SAM9G45_ID_PIODE,
-		.offset		= AT91_PIOD,
-		.clock		= &pioDE_clk,
+		.regbase	= AT91SAM9G45_BASE_PIOD,
 	}, {
 		.id		= AT91SAM9G45_ID_PIODE,
-		.offset		= AT91_PIOE,
-		.clock		= &pioDE_clk,
+		.regbase	= AT91SAM9G45_BASE_PIOE,
 	}
 };
 
@@ -322,12 +323,6 @@ static void at91sam9g45_restart(char mode, const char *cmd)
 	at91_sys_write(AT91_RSTC_CR, AT91_RSTC_KEY | AT91_RSTC_PROCRST | AT91_RSTC_PERRST);
 }
 
-static void at91sam9g45_poweroff(void)
-{
-	at91_sys_write(AT91_SHDW_CR, AT91_SHDW_KEY | AT91_SHDW_SHDW);
-}
-
-
 /* --------------------------------------------------------------------
  *  AT91SAM9G45 processor initialization
  * -------------------------------------------------------------------- */
@@ -338,10 +333,16 @@ static void __init at91sam9g45_map_io(void)
 	init_consistent_dma_size(SZ_4M);
 }
 
+static void __init at91sam9g45_ioremap_registers(void)
+{
+	at91_ioremap_shdwc(AT91SAM9G45_BASE_SHDWC);
+	at91sam926x_ioremap_pit(AT91SAM9G45_BASE_PIT);
+	at91sam9_ioremap_smc(0, AT91SAM9G45_BASE_SMC);
+}
+
 static void __init at91sam9g45_initialize(void)
 {
 	arm_pm_restart = at91sam9g45_restart;
-	pm_power_off = at91sam9g45_poweroff;
 	at91_extern_irq = (1 << AT91SAM9G45_ID_IRQ0);
 
 	/* Register GPIO subsystem */
@@ -393,6 +394,7 @@ static unsigned int at91sam9g45_default_irq_priority[NR_AIC_IRQS] __initdata = {
 struct at91_init_soc __initdata at91sam9g45_soc = {
 	.map_io = at91sam9g45_map_io,
 	.default_irq_priority = at91sam9g45_default_irq_priority,
+	.ioremap_registers = at91sam9g45_ioremap_registers,
 	.register_clocks = at91sam9g45_register_clocks,
 	.init = at91sam9g45_initialize,
 };
diff --git a/arch/arm/mach-at91/at91sam9g45_devices.c b/arch/arm/mach-at91/at91sam9g45_devices.c
index 09a16d6bd5cd..b7582dd10dc3 100644
--- a/arch/arm/mach-at91/at91sam9g45_devices.c
+++ b/arch/arm/mach-at91/at91sam9g45_devices.c
@@ -44,8 +44,8 @@ static struct at_dma_platform_data atdma_pdata = {
 
 static struct resource hdmac_resources[] = {
 	[0] = {
-		.start	= AT91_BASE_SYS + AT91_DMA,
-		.end	= AT91_BASE_SYS + AT91_DMA + SZ_512 - 1,
+		.start	= AT91SAM9G45_BASE_DMA,
+		.end	= AT91SAM9G45_BASE_DMA + SZ_512 - 1,
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
@@ -120,7 +120,7 @@ void __init at91_add_device_usbh_ohci(struct at91_usbh_data *data)
 
 	/* Enable VBus control for UHP ports */
 	for (i = 0; i < data->ports; i++) {
-		if (data->vbus_pin[i])
+		if (gpio_is_valid(data->vbus_pin[i]))
 			at91_set_gpio_output(data->vbus_pin[i], 0);
 	}
 
@@ -181,7 +181,7 @@ void __init at91_add_device_usbh_ehci(struct at91_usbh_data *data)
 
 	/* Enable VBus control for UHP ports */
 	for (i = 0; i < data->ports; i++) {
-		if (data->vbus_pin[i])
+		if (gpio_is_valid(data->vbus_pin[i]))
 			at91_set_gpio_output(data->vbus_pin[i], 0);
 	}
 
@@ -263,7 +263,7 @@ void __init at91_add_device_usba(struct usba_platform_data *data)
 	usba_udc_data.pdata.num_ep = ARRAY_SIZE(usba_udc_ep);
 	memcpy(usba_udc_data.ep, usba_udc_ep, sizeof(usba_udc_ep));
 
-	if (data && data->vbus_pin > 0) {
+	if (data && gpio_is_valid(data->vbus_pin)) {
 		at91_set_gpio_input(data->vbus_pin, 0);
 		at91_set_deglitch(data->vbus_pin, 1);
 		usba_udc_data.pdata.vbus_pin = data->vbus_pin;
@@ -284,7 +284,7 @@ void __init at91_add_device_usba(struct usba_platform_data *data) {}
 
 #if defined(CONFIG_MACB) || defined(CONFIG_MACB_MODULE)
 static u64 eth_dmamask = DMA_BIT_MASK(32);
-static struct at91_eth_data eth_data;
+static struct macb_platform_data eth_data;
 
 static struct resource eth_resources[] = {
 	[0] = {
@@ -311,12 +311,12 @@ static struct platform_device at91sam9g45_eth_device = {
 	.num_resources	= ARRAY_SIZE(eth_resources),
 };
 
-void __init at91_add_device_eth(struct at91_eth_data *data)
+void __init at91_add_device_eth(struct macb_platform_data *data)
 {
 	if (!data)
 		return;
 
-	if (data->phy_irq_pin) {
+	if (gpio_is_valid(data->phy_irq_pin)) {
 		at91_set_gpio_input(data->phy_irq_pin, 0);
 		at91_set_deglitch(data->phy_irq_pin, 1);
 	}
@@ -348,7 +348,7 @@ void __init at91_add_device_eth(struct at91_eth_data *data)
 	platform_device_register(&at91sam9g45_eth_device);
 }
 #else
-void __init at91_add_device_eth(struct at91_eth_data *data) {}
+void __init at91_add_device_eth(struct macb_platform_data *data) {}
 #endif
 
 
@@ -449,11 +449,11 @@ void __init at91_add_device_mci(short mmc_id, struct mci_platform_data *data)
 
 
 	/* input/irq */
-	if (data->slot[0].detect_pin) {
+	if (gpio_is_valid(data->slot[0].detect_pin)) {
 		at91_set_gpio_input(data->slot[0].detect_pin, 1);
 		at91_set_deglitch(data->slot[0].detect_pin, 1);
 	}
-	if (data->slot[0].wp_pin)
+	if (gpio_is_valid(data->slot[0].wp_pin))
 		at91_set_gpio_input(data->slot[0].wp_pin, 1);
 
 	if (mmc_id == 0) {		/* MCI0 */
@@ -529,8 +529,8 @@ static struct resource nand_resources[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= AT91_BASE_SYS + AT91_ECC,
-		.end	= AT91_BASE_SYS + AT91_ECC + SZ_512 - 1,
+		.start	= AT91SAM9G45_BASE_ECC,
+		.end	= AT91SAM9G45_BASE_ECC + SZ_512 - 1,
 		.flags	= IORESOURCE_MEM,
 	}
 };
@@ -556,15 +556,15 @@ void __init at91_add_device_nand(struct atmel_nand_data *data)
 	at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_EBI_CS3A_SMC_SMARTMEDIA);
 
 	/* enable pin */
-	if (data->enable_pin)
+	if (gpio_is_valid(data->enable_pin))
 		at91_set_gpio_output(data->enable_pin, 1);
 
 	/* ready/busy pin */
-	if (data->rdy_pin)
+	if (gpio_is_valid(data->rdy_pin))
 		at91_set_gpio_input(data->rdy_pin, 1);
 
 	/* card detect pin */
-	if (data->det_pin)
+	if (gpio_is_valid(data->det_pin))
 		at91_set_gpio_input(data->det_pin, 1);
 
 	nand_data = *data;
@@ -859,7 +859,7 @@ void __init at91_add_device_ac97(struct ac97c_platform_data *data)
 	at91_set_A_periph(AT91_PIN_PD6, 0);	/* AC97RX */
 
 	/* reset */
-	if (data->reset_pin)
+	if (gpio_is_valid(data->reset_pin))
 		at91_set_gpio_output(data->reset_pin, 0);
 
 	ac97_data = *data;
@@ -1009,10 +1009,24 @@ static void __init at91_add_device_tc(void) { }
  * -------------------------------------------------------------------- */
 
 #if defined(CONFIG_RTC_DRV_AT91RM9200) || defined(CONFIG_RTC_DRV_AT91RM9200_MODULE)
+static struct resource rtc_resources[] = {
+	[0] = {
+		.start	= AT91SAM9G45_BASE_RTC,
+		.end	= AT91SAM9G45_BASE_RTC + SZ_256 - 1,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= AT91_ID_SYS,
+		.end	= AT91_ID_SYS,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
 static struct platform_device at91sam9g45_rtc_device = {
 	.name		= "at91_rtc",
 	.id		= -1,
-	.num_resources	= 0,
+	.resource	= rtc_resources,
+	.num_resources	= ARRAY_SIZE(rtc_resources),
 };
 
 static void __init at91_add_device_rtc(void)
@@ -1081,8 +1095,8 @@ void __init at91_add_device_tsadcc(struct at91_tsadcc_data *data) {}
 
 static struct resource rtt_resources[] = {
 	{
-		.start	= AT91_BASE_SYS + AT91_RTT,
-		.end	= AT91_BASE_SYS + AT91_RTT + SZ_16 - 1,
+		.start	= AT91SAM9G45_BASE_RTT,
+		.end	= AT91SAM9G45_BASE_RTT + SZ_16 - 1,
 		.flags	= IORESOURCE_MEM,
 	}
 };
@@ -1133,10 +1147,19 @@ static void __init at91_add_device_trng(void) {}
  * -------------------------------------------------------------------- */
 
 #if defined(CONFIG_AT91SAM9X_WATCHDOG) || defined(CONFIG_AT91SAM9X_WATCHDOG_MODULE)
+static struct resource wdt_resources[] = {
+	{
+		.start	= AT91SAM9G45_BASE_WDT,
+		.end	= AT91SAM9G45_BASE_WDT + SZ_16 - 1,
+		.flags	= IORESOURCE_MEM,
+	}
+};
+
 static struct platform_device at91sam9g45_wdt_device = {
 	.name		= "at91_wdt",
 	.id		= -1,
-	.num_resources	= 0,
+	.resource	= wdt_resources,
+	.num_resources	= ARRAY_SIZE(wdt_resources),
 };
 
 static void __init at91_add_device_watchdog(void)
@@ -1332,8 +1355,8 @@ void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
 #if defined(CONFIG_SERIAL_ATMEL)
 static struct resource dbgu_resources[] = {
 	[0] = {
-		.start	= AT91_BASE_SYS + AT91_DBGU,
-		.end	= AT91_BASE_SYS + AT91_DBGU + SZ_512 - 1,
+		.start	= AT91SAM9G45_BASE_DBGU,
+		.end	= AT91SAM9G45_BASE_DBGU + SZ_512 - 1,
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
diff --git a/arch/arm/mach-at91/at91sam9rl.c b/arch/arm/mach-at91/at91sam9rl.c
index 61cbb46f5b0e..d6bcb1da11df 100644
--- a/arch/arm/mach-at91/at91sam9rl.c
+++ b/arch/arm/mach-at91/at91sam9rl.c
@@ -10,7 +10,6 @@
  */
 
 #include <linux/module.h>
-#include <linux/pm.h>
 
 #include <asm/irq.h>
 #include <asm/mach/arch.h>
@@ -20,11 +19,11 @@
 #include <mach/at91sam9rl.h>
 #include <mach/at91_pmc.h>
 #include <mach/at91_rstc.h>
-#include <mach/at91_shdwc.h>
 
 #include "soc.h"
 #include "generic.h"
 #include "clock.h"
+#include "sam9_smc.h"
 
 /* --------------------------------------------------------------------
  *  Clocks
@@ -184,6 +183,10 @@ static struct clk_lookup periph_clocks_lookups[] = {
 	CLKDEV_CON_DEV_ID("t2_clk", "atmel_tcb.0", &tc2_clk),
 	CLKDEV_CON_DEV_ID("pclk", "ssc.0", &ssc0_clk),
 	CLKDEV_CON_DEV_ID("pclk", "ssc.1", &ssc1_clk),
+	CLKDEV_CON_ID("pioA", &pioA_clk),
+	CLKDEV_CON_ID("pioB", &pioB_clk),
+	CLKDEV_CON_ID("pioC", &pioC_clk),
+	CLKDEV_CON_ID("pioD", &pioD_clk),
 };
 
 static struct clk_lookup usart_clocks_lookups[] = {
@@ -243,32 +246,22 @@ void __init at91sam9rl_set_console_clock(int id)
  *  GPIO
  * -------------------------------------------------------------------- */
 
-static struct at91_gpio_bank at91sam9rl_gpio[] = {
+static struct at91_gpio_bank at91sam9rl_gpio[] __initdata = {
 	{
 		.id		= AT91SAM9RL_ID_PIOA,
-		.offset		= AT91_PIOA,
-		.clock		= &pioA_clk,
+		.regbase	= AT91SAM9RL_BASE_PIOA,
 	}, {
 		.id		= AT91SAM9RL_ID_PIOB,
-		.offset		= AT91_PIOB,
-		.clock		= &pioB_clk,
+		.regbase	= AT91SAM9RL_BASE_PIOB,
 	}, {
 		.id		= AT91SAM9RL_ID_PIOC,
-		.offset		= AT91_PIOC,
-		.clock		= &pioC_clk,
+		.regbase	= AT91SAM9RL_BASE_PIOC,
 	}, {
 		.id		= AT91SAM9RL_ID_PIOD,
-		.offset		= AT91_PIOD,
-		.clock		= &pioD_clk,
+		.regbase	= AT91SAM9RL_BASE_PIOD,
 	}
 };
 
-static void at91sam9rl_poweroff(void)
-{
-	at91_sys_write(AT91_SHDW_CR, AT91_SHDW_KEY | AT91_SHDW_SHDW);
-}
-
-
 /* --------------------------------------------------------------------
  *  AT91SAM9RL processor initialization
  * -------------------------------------------------------------------- */
@@ -290,10 +283,16 @@ static void __init at91sam9rl_map_io(void)
 	at91_init_sram(0, AT91SAM9RL_SRAM_BASE, sram_size);
 }
 
+static void __init at91sam9rl_ioremap_registers(void)
+{
+	at91_ioremap_shdwc(AT91SAM9RL_BASE_SHDWC);
+	at91sam926x_ioremap_pit(AT91SAM9RL_BASE_PIT);
+	at91sam9_ioremap_smc(0, AT91SAM9RL_BASE_SMC);
+}
+
 static void __init at91sam9rl_initialize(void)
 {
 	arm_pm_restart = at91sam9_alt_restart;
-	pm_power_off = at91sam9rl_poweroff;
 	at91_extern_irq = (1 << AT91SAM9RL_ID_IRQ0);
 
 	/* Register GPIO subsystem */
@@ -345,6 +344,7 @@ static unsigned int at91sam9rl_default_irq_priority[NR_AIC_IRQS] __initdata = {
 struct at91_init_soc __initdata at91sam9rl_soc = {
 	.map_io = at91sam9rl_map_io,
 	.default_irq_priority = at91sam9rl_default_irq_priority,
+	.ioremap_registers = at91sam9rl_ioremap_registers,
 	.register_clocks = at91sam9rl_register_clocks,
 	.init = at91sam9rl_initialize,
 };
diff --git a/arch/arm/mach-at91/at91sam9rl_devices.c b/arch/arm/mach-at91/at91sam9rl_devices.c
index 628eb566d60c..61908dce9784 100644
--- a/arch/arm/mach-at91/at91sam9rl_devices.c
+++ b/arch/arm/mach-at91/at91sam9rl_devices.c
@@ -39,8 +39,8 @@ static struct at_dma_platform_data atdma_pdata = {
 
 static struct resource hdmac_resources[] = {
 	[0] = {
-		.start	= AT91_BASE_SYS + AT91_DMA,
-		.end	= AT91_BASE_SYS + AT91_DMA + SZ_512 - 1,
+		.start	= AT91SAM9RL_BASE_DMA,
+		.end	= AT91SAM9RL_BASE_DMA + SZ_512 - 1,
 		.flags	= IORESOURCE_MEM,
 	},
 	[2] = {
@@ -147,7 +147,7 @@ void __init at91_add_device_usba(struct usba_platform_data *data)
 	usba_udc_data.pdata.num_ep = ARRAY_SIZE(usba_udc_ep);
 	memcpy(usba_udc_data.ep, usba_udc_ep, sizeof(usba_udc_ep));
 
-	if (data && data->vbus_pin > 0) {
+	if (data && gpio_is_valid(data->vbus_pin)) {
 		at91_set_gpio_input(data->vbus_pin, 0);
 		at91_set_deglitch(data->vbus_pin, 1);
 		usba_udc_data.pdata.vbus_pin = data->vbus_pin;
@@ -201,13 +201,13 @@ void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data)
 		return;
 
 	/* input/irq */
-	if (data->det_pin) {
+	if (gpio_is_valid(data->det_pin)) {
 		at91_set_gpio_input(data->det_pin, 1);
 		at91_set_deglitch(data->det_pin, 1);
 	}
-	if (data->wp_pin)
+	if (gpio_is_valid(data->wp_pin))
 		at91_set_gpio_input(data->wp_pin, 1);
-	if (data->vcc_pin)
+	if (gpio_is_valid(data->vcc_pin))
 		at91_set_gpio_output(data->vcc_pin, 0);
 
 	/* CLK */
@@ -248,8 +248,8 @@ static struct resource nand_resources[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= AT91_BASE_SYS + AT91_ECC,
-		.end	= AT91_BASE_SYS + AT91_ECC + SZ_512 - 1,
+		.start	= AT91SAM9RL_BASE_ECC,
+		.end	= AT91SAM9RL_BASE_ECC + SZ_512 - 1,
 		.flags	= IORESOURCE_MEM,
 	}
 };
@@ -275,15 +275,15 @@ void __init at91_add_device_nand(struct atmel_nand_data *data)
 	at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_CS3A_SMC_SMARTMEDIA);
 
 	/* enable pin */
-	if (data->enable_pin)
+	if (gpio_is_valid(data->enable_pin))
 		at91_set_gpio_output(data->enable_pin, 1);
 
 	/* ready/busy pin */
-	if (data->rdy_pin)
+	if (gpio_is_valid(data->rdy_pin))
 		at91_set_gpio_input(data->rdy_pin, 1);
 
 	/* card detect pin */
-	if (data->det_pin)
+	if (gpio_is_valid(data->det_pin))
 		at91_set_gpio_input(data->det_pin, 1);
 
 	at91_set_A_periph(AT91_PIN_PB4, 0);		/* NANDOE */
@@ -483,7 +483,7 @@ void __init at91_add_device_ac97(struct ac97c_platform_data *data)
 	at91_set_A_periph(AT91_PIN_PD4, 0);	/* AC97RX */
 
 	/* reset */
-	if (data->reset_pin)
+	if (gpio_is_valid(data->reset_pin))
 		at91_set_gpio_output(data->reset_pin, 0);
 
 	ac97_data = *data;
@@ -685,8 +685,8 @@ static void __init at91_add_device_rtc(void) {}
 
 static struct resource rtt_resources[] = {
 	{
-		.start	= AT91_BASE_SYS + AT91_RTT,
-		.end	= AT91_BASE_SYS + AT91_RTT + SZ_16 - 1,
+		.start	= AT91SAM9RL_BASE_RTT,
+		.end	= AT91SAM9RL_BASE_RTT + SZ_16 - 1,
 		.flags	= IORESOURCE_MEM,
 	}
 };
@@ -709,10 +709,19 @@ static void __init at91_add_device_rtt(void)
  * -------------------------------------------------------------------- */
 
 #if defined(CONFIG_AT91SAM9X_WATCHDOG) || defined(CONFIG_AT91SAM9X_WATCHDOG_MODULE)
+static struct resource wdt_resources[] = {
+	{
+		.start	= AT91SAM9RL_BASE_WDT,
+		.end	= AT91SAM9RL_BASE_WDT + SZ_16 - 1,
+		.flags	= IORESOURCE_MEM,
+	}
+};
+
 static struct platform_device at91sam9rl_wdt_device = {
 	.name		= "at91_wdt",
 	.id		= -1,
-	.num_resources	= 0,
+	.resource	= wdt_resources,
+	.num_resources	= ARRAY_SIZE(wdt_resources),
 };
 
 static void __init at91_add_device_watchdog(void)
@@ -908,8 +917,8 @@ void __init at91_add_device_ssc(unsigned id, unsigned pins) {}
 #if defined(CONFIG_SERIAL_ATMEL)
 static struct resource dbgu_resources[] = {
 	[0] = {
-		.start	= AT91_BASE_SYS + AT91_DBGU,
-		.end	= AT91_BASE_SYS + AT91_DBGU + SZ_512 - 1,
+		.start	= AT91SAM9RL_BASE_DBGU,
+		.end	= AT91SAM9RL_BASE_DBGU + SZ_512 - 1,
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
diff --git a/arch/arm/mach-at91/board-1arm.c b/arch/arm/mach-at91/board-1arm.c
index 367d5cd5e362..2628384aaae1 100644
--- a/arch/arm/mach-at91/board-1arm.c
+++ b/arch/arm/mach-at91/board-1arm.c
@@ -63,13 +63,15 @@ static void __init onearm_init_early(void)
 	at91_set_serial_console(0);
 }
 
-static struct at91_eth_data __initdata onearm_eth_data = {
+static struct macb_platform_data __initdata onearm_eth_data = {
 	.phy_irq_pin	= AT91_PIN_PC4,
 	.is_rmii	= 1,
 };
 
 static struct at91_usbh_data __initdata onearm_usbh_data = {
 	.ports		= 1,
+	.vbus_pin	= {-EINVAL, -EINVAL},
+	.overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
 static struct at91_udc_data __initdata onearm_udc_data = {
diff --git a/arch/arm/mach-at91/board-afeb-9260v1.c b/arch/arm/mach-at91/board-afeb-9260v1.c
index 4282d96dffa8..3bb40694b02d 100644
--- a/arch/arm/mach-at91/board-afeb-9260v1.c
+++ b/arch/arm/mach-at91/board-afeb-9260v1.c
@@ -75,6 +75,8 @@ static void __init afeb9260_init_early(void)
  */
 static struct at91_usbh_data __initdata afeb9260_usbh_data = {
 	.ports		= 1,
+	.vbus_pin	= {-EINVAL, -EINVAL},
+	.overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
 /*
@@ -82,7 +84,7 @@ static struct at91_usbh_data __initdata afeb9260_usbh_data = {
  */
 static struct at91_udc_data __initdata afeb9260_udc_data = {
 	.vbus_pin	= AT91_PIN_PC5,
-	.pullup_pin	= 0,		/* pull-up driven by UDC */
+	.pullup_pin	= -EINVAL,		/* pull-up driven by UDC */
 };
 
 
@@ -103,7 +105,7 @@ static struct spi_board_info afeb9260_spi_devices[] = {
 /*
  * MACB Ethernet device
  */
-static struct at91_eth_data __initdata afeb9260_macb_data = {
+static struct macb_platform_data __initdata afeb9260_macb_data = {
 	.phy_irq_pin	= AT91_PIN_PA9,
 	.is_rmii	= 0,
 };
@@ -138,6 +140,7 @@ static struct atmel_nand_data __initdata afeb9260_nand_data = {
 	.bus_width_16	= 0,
 	.parts		= afeb9260_nand_partition,
 	.num_parts	= ARRAY_SIZE(afeb9260_nand_partition),
+	.det_pin	= -EINVAL,
 };
 
 
@@ -149,6 +152,7 @@ static struct at91_mmc_data __initdata afeb9260_mmc_data = {
 	.wp_pin 	= AT91_PIN_PC4,
 	.slot_b		= 1,
 	.wire4		= 1,
+	.vcc_pin	= -EINVAL,
 };
 
 
@@ -169,6 +173,8 @@ static struct i2c_board_info __initdata afeb9260_i2c_devices[] = {
 static struct at91_cf_data afeb9260_cf_data = {
 	.chipselect = 4,
 	.irq_pin    = AT91_PIN_PA6,
+	.det_pin	= -EINVAL,
+	.vcc_pin	= -EINVAL,
 	.rst_pin    = AT91_PIN_PA7,
 	.flags      = AT91_CF_TRUE_IDE,
 };
diff --git a/arch/arm/mach-at91/board-cam60.c b/arch/arm/mach-at91/board-cam60.c
index f90cfb32bad2..8510e9e54988 100644
--- a/arch/arm/mach-at91/board-cam60.c
+++ b/arch/arm/mach-at91/board-cam60.c
@@ -62,6 +62,8 @@ static void __init cam60_init_early(void)
  */
 static struct at91_usbh_data __initdata cam60_usbh_data = {
 	.ports		= 1,
+	.vbus_pin	= {-EINVAL, -EINVAL},
+	.overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
 
@@ -115,7 +117,7 @@ static struct spi_board_info cam60_spi_devices[] __initdata = {
 /*
  * MACB Ethernet device
  */
-static struct __initdata at91_eth_data cam60_macb_data = {
+static struct __initdata macb_platform_data cam60_macb_data = {
 	.phy_irq_pin	= AT91_PIN_PB5,
 	.is_rmii	= 0,
 };
@@ -135,7 +137,7 @@ static struct mtd_partition __initdata cam60_nand_partition[] = {
 static struct atmel_nand_data __initdata cam60_nand_data = {
 	.ale		= 21,
 	.cle		= 22,
-	// .det_pin	= ... not there
+	.det_pin	= -EINVAL,
 	.rdy_pin	= AT91_PIN_PA9,
 	.enable_pin	= AT91_PIN_PA7,
 	.parts		= cam60_nand_partition,
@@ -163,7 +165,7 @@ static struct sam9_smc_config __initdata cam60_nand_smc_config = {
 static void __init cam60_add_device_nand(void)
 {
 	/* configure chip-select 3 (NAND) */
-	sam9_smc_configure(3, &cam60_nand_smc_config);
+	sam9_smc_configure(0, 3, &cam60_nand_smc_config);
 
 	at91_add_device_nand(&cam60_nand_data);
 }
diff --git a/arch/arm/mach-at91/board-cap9adk.c b/arch/arm/mach-at91/board-cap9adk.c
index 5dffd3be62d2..ac3de4f7c31d 100644
--- a/arch/arm/mach-at91/board-cap9adk.c
+++ b/arch/arm/mach-at91/board-cap9adk.c
@@ -70,6 +70,8 @@ static void __init cap9adk_init_early(void)
  */
 static struct at91_usbh_data __initdata cap9adk_usbh_data = {
 	.ports		= 2,
+	.vbus_pin	= {-EINVAL, -EINVAL},
+	.overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
 /*
@@ -144,16 +146,17 @@ static struct spi_board_info cap9adk_spi_devices[] = {
  */
 static struct at91_mmc_data __initdata cap9adk_mmc_data = {
 	.wire4		= 1,
-//	.det_pin	= ... not connected
-//	.wp_pin		= ... not connected
-//	.vcc_pin	= ... not connected
+	.det_pin	= -EINVAL,
+	.wp_pin		= -EINVAL,
+	.vcc_pin	= -EINVAL,
 };
 
 
 /*
  * MACB Ethernet device
  */
-static struct at91_eth_data __initdata cap9adk_macb_data = {
+static struct macb_platform_data __initdata cap9adk_macb_data = {
+	.phy_irq_pin	= -EINVAL,
 	.is_rmii	= 1,
 };
 
@@ -172,8 +175,8 @@ static struct mtd_partition __initdata cap9adk_nand_partitions[] = {
 static struct atmel_nand_data __initdata cap9adk_nand_data = {
 	.ale		= 21,
 	.cle		= 22,
-//	.det_pin	= ... not connected
-//	.rdy_pin	= ... not connected
+	.det_pin	= -EINVAL,
+	.rdy_pin	= -EINVAL,
 	.enable_pin	= AT91_PIN_PD15,
 	.parts		= cap9adk_nand_partitions,
 	.num_parts	= ARRAY_SIZE(cap9adk_nand_partitions),
@@ -212,7 +215,7 @@ static void __init cap9adk_add_device_nand(void)
 		cap9adk_nand_smc_config.mode |= AT91_SMC_DBW_8;
 
 	/* configure chip-select 3 (NAND) */
-	sam9_smc_configure(3, &cap9adk_nand_smc_config);
+	sam9_smc_configure(0, 3, &cap9adk_nand_smc_config);
 
 	at91_add_device_nand(&cap9adk_nand_data);
 }
@@ -282,7 +285,7 @@ static __init void cap9adk_add_device_nor(void)
 	at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_EBI_VDDIOMSEL_3_3V);
 
 	/* configure chip-select 0 (NOR) */
-	sam9_smc_configure(0, &cap9adk_nor_smc_config);
+	sam9_smc_configure(0, 0, &cap9adk_nor_smc_config);
 
 	platform_device_register(&cap9adk_nor_flash);
 }
@@ -351,7 +354,7 @@ static struct atmel_lcdfb_info __initdata cap9adk_lcdc_data;
  * AC97
  */
 static struct ac97c_platform_data cap9adk_ac97_data = {
-//	.reset_pin	= ... not connected
+	.reset_pin	= -EINVAL,
 };
 
 
diff --git a/arch/arm/mach-at91/board-carmeva.c b/arch/arm/mach-at91/board-carmeva.c
index 774c87fcbd5b..59d9cf997537 100644
--- a/arch/arm/mach-at91/board-carmeva.c
+++ b/arch/arm/mach-at91/board-carmeva.c
@@ -57,13 +57,15 @@ static void __init carmeva_init_early(void)
 	at91_set_serial_console(0);
 }
 
-static struct at91_eth_data __initdata carmeva_eth_data = {
+static struct macb_platform_data __initdata carmeva_eth_data = {
 	.phy_irq_pin	= AT91_PIN_PC4,
 	.is_rmii	= 1,
 };
 
 static struct at91_usbh_data __initdata carmeva_usbh_data = {
 	.ports		= 2,
+	.vbus_pin	= {-EINVAL, -EINVAL},
+	.overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
 static struct at91_udc_data __initdata carmeva_udc_data = {
@@ -75,8 +77,8 @@ static struct at91_udc_data __initdata carmeva_udc_data = {
 // static struct at91_cf_data __initdata carmeva_cf_data = {
 //	.det_pin	= AT91_PIN_PB0,
 //	.rst_pin	= AT91_PIN_PC5,
-	// .irq_pin	= ... not connected
-	// .vcc_pin	= ... always powered
+	// .irq_pin	= -EINVAL,
+	// .vcc_pin	= -EINVAL,
 // };
 
 static struct at91_mmc_data __initdata carmeva_mmc_data = {
@@ -84,6 +86,7 @@ static struct at91_mmc_data __initdata carmeva_mmc_data = {
 	.wire4		= 1,
 	.det_pin	= AT91_PIN_PB10,
 	.wp_pin		= AT91_PIN_PC14,
+	.vcc_pin	= -EINVAL,
 };
 
 static struct spi_board_info carmeva_spi_devices[] = {
diff --git a/arch/arm/mach-at91/board-cpu9krea.c b/arch/arm/mach-at91/board-cpu9krea.c
index fc885a4ce243..9ab3d1ea326d 100644
--- a/arch/arm/mach-at91/board-cpu9krea.c
+++ b/arch/arm/mach-at91/board-cpu9krea.c
@@ -86,6 +86,8 @@ static void __init cpu9krea_init_early(void)
  */
 static struct at91_usbh_data __initdata cpu9krea_usbh_data = {
 	.ports		= 2,
+	.vbus_pin	= {-EINVAL, -EINVAL},
+	.overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
 /*
@@ -93,13 +95,14 @@ static struct at91_usbh_data __initdata cpu9krea_usbh_data = {
  */
 static struct at91_udc_data __initdata cpu9krea_udc_data = {
 	.vbus_pin	= AT91_PIN_PC8,
-	.pullup_pin	= 0,		/* pull-up driven by UDC */
+	.pullup_pin	= -EINVAL,		/* pull-up driven by UDC */
 };
 
 /*
  * MACB Ethernet device
  */
-static struct at91_eth_data __initdata cpu9krea_macb_data = {
+static struct macb_platform_data __initdata cpu9krea_macb_data = {
+	.phy_irq_pin	= -EINVAL,
 	.is_rmii	= 1,
 };
 
@@ -112,6 +115,7 @@ static struct atmel_nand_data __initdata cpu9krea_nand_data = {
 	.rdy_pin	= AT91_PIN_PC13,
 	.enable_pin	= AT91_PIN_PC14,
 	.bus_width_16	= 0,
+	.det_pin	= -EINVAL,
 };
 
 #ifdef CONFIG_MACH_CPU9260
@@ -156,7 +160,7 @@ static struct sam9_smc_config __initdata cpu9krea_nand_smc_config = {
 
 static void __init cpu9krea_add_device_nand(void)
 {
-	sam9_smc_configure(3, &cpu9krea_nand_smc_config);
+	sam9_smc_configure(0, 3, &cpu9krea_nand_smc_config);
 	at91_add_device_nand(&cpu9krea_nand_data);
 }
 
@@ -238,7 +242,7 @@ static __init void cpu9krea_add_device_nor(void)
 	at91_sys_write(AT91_MATRIX_EBICSA, csa | AT91_MATRIX_VDDIOMSEL_3_3V);
 
 	/* configure chip-select 0 (NOR) */
-	sam9_smc_configure(0, &cpu9krea_nor_smc_config);
+	sam9_smc_configure(0, 0, &cpu9krea_nor_smc_config);
 
 	platform_device_register(&cpu9krea_nor_flash);
 }
@@ -337,6 +341,8 @@ static struct at91_mmc_data __initdata cpu9krea_mmc_data = {
 	.slot_b		= 0,
 	.wire4		= 1,
 	.det_pin	= AT91_PIN_PA29,
+	.wp_pin		= -EINVAL,
+	.vcc_pin	= -EINVAL,
 };
 
 static void __init cpu9krea_board_init(void)
diff --git a/arch/arm/mach-at91/board-cpuat91.c b/arch/arm/mach-at91/board-cpuat91.c
index d35e65b08ccd..368e1427ad99 100644
--- a/arch/arm/mach-at91/board-cpuat91.c
+++ b/arch/arm/mach-at91/board-cpuat91.c
@@ -82,12 +82,15 @@ static void __init cpuat91_init_early(void)
 	at91_set_serial_console(0);
 }
 
-static struct at91_eth_data __initdata cpuat91_eth_data = {
+static struct macb_platform_data __initdata cpuat91_eth_data = {
+	.phy_irq_pin	= -EINVAL,
 	.is_rmii	= 1,
 };
 
 static struct at91_usbh_data __initdata cpuat91_usbh_data = {
 	.ports		= 1,
+	.vbus_pin	= {-EINVAL, -EINVAL},
+	.overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
 static struct at91_udc_data __initdata cpuat91_udc_data = {
@@ -98,6 +101,8 @@ static struct at91_udc_data __initdata cpuat91_udc_data = {
 static struct at91_mmc_data __initdata cpuat91_mmc_data = {
 	.det_pin	= AT91_PIN_PC2,
 	.wire4		= 1,
+	.wp_pin		= -EINVAL,
+	.vcc_pin	= -EINVAL,
 };
 
 static struct physmap_flash_data cpuat91_flash_data = {
diff --git a/arch/arm/mach-at91/board-csb337.c b/arch/arm/mach-at91/board-csb337.c
index c3936665e645..1a1547b1ce4e 100644
--- a/arch/arm/mach-at91/board-csb337.c
+++ b/arch/arm/mach-at91/board-csb337.c
@@ -58,18 +58,20 @@ static void __init csb337_init_early(void)
 	at91_set_serial_console(0);
 }
 
-static struct at91_eth_data __initdata csb337_eth_data = {
+static struct macb_platform_data __initdata csb337_eth_data = {
 	.phy_irq_pin	= AT91_PIN_PC2,
 	.is_rmii	= 0,
 };
 
 static struct at91_usbh_data __initdata csb337_usbh_data = {
 	.ports		= 2,
+	.vbus_pin	= {-EINVAL, -EINVAL},
+	.overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
 static struct at91_udc_data __initdata csb337_udc_data = {
-	// this has no VBUS sensing pin
 	.pullup_pin	= AT91_PIN_PA24,
+	.vbus_pin	= -EINVAL,
 };
 
 static struct i2c_board_info __initdata csb337_i2c_devices[] = {
@@ -98,6 +100,7 @@ static struct at91_mmc_data __initdata csb337_mmc_data = {
 	.slot_b		= 0,
 	.wire4		= 1,
 	.wp_pin		= AT91_PIN_PD6,
+	.vcc_pin	= -EINVAL,
 };
 
 static struct spi_board_info csb337_spi_devices[] = {
diff --git a/arch/arm/mach-at91/board-csb637.c b/arch/arm/mach-at91/board-csb637.c
index 586100e2acbb..f650bf39455d 100644
--- a/arch/arm/mach-at91/board-csb637.c
+++ b/arch/arm/mach-at91/board-csb637.c
@@ -52,13 +52,15 @@ static void __init csb637_init_early(void)
 	at91_set_serial_console(0);
 }
 
-static struct at91_eth_data __initdata csb637_eth_data = {
+static struct macb_platform_data __initdata csb637_eth_data = {
 	.phy_irq_pin	= AT91_PIN_PC0,
 	.is_rmii	= 0,
 };
 
 static struct at91_usbh_data __initdata csb637_usbh_data = {
 	.ports		= 2,
+	.vbus_pin	= {-EINVAL, -EINVAL},
+	.overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
 static struct at91_udc_data __initdata csb637_udc_data = {
diff --git a/arch/arm/mach-at91/board-dt.c b/arch/arm/mach-at91/board-dt.c
index 0b7d32778210..bb6b434ec0c1 100644
--- a/arch/arm/mach-at91/board-dt.c
+++ b/arch/arm/mach-at91/board-dt.c
@@ -50,6 +50,7 @@ static void __init ek_init_early(void)
 static struct atmel_nand_data __initdata ek_nand_data = {
 	.ale		= 21,
 	.cle		= 22,
+	.det_pin	= -EINVAL,
 	.rdy_pin	= AT91_PIN_PC8,
 	.enable_pin	= AT91_PIN_PC14,
 };
@@ -82,7 +83,7 @@ static void __init ek_add_device_nand(void)
 		ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
 
 	/* configure chip-select 3 (NAND) */
-	sam9_smc_configure(3, &ek_nand_smc_config);
+	sam9_smc_configure(0, 3, &ek_nand_smc_config);
 
 	at91_add_device_nand(&ek_nand_data);
 }
diff --git a/arch/arm/mach-at91/board-eb9200.c b/arch/arm/mach-at91/board-eb9200.c
index 45db7a3dbef0..d302ca3eeb64 100644
--- a/arch/arm/mach-at91/board-eb9200.c
+++ b/arch/arm/mach-at91/board-eb9200.c
@@ -60,13 +60,15 @@ static void __init eb9200_init_early(void)
 	at91_set_serial_console(0);
 }
 
-static struct at91_eth_data __initdata eb9200_eth_data = {
+static struct macb_platform_data __initdata eb9200_eth_data = {
 	.phy_irq_pin	= AT91_PIN_PC4,
 	.is_rmii	= 1,
 };
 
 static struct at91_usbh_data __initdata eb9200_usbh_data = {
 	.ports		= 2,
+	.vbus_pin	= {-EINVAL, -EINVAL},
+	.overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
 static struct at91_udc_data __initdata eb9200_udc_data = {
@@ -75,15 +77,18 @@ static struct at91_udc_data __initdata eb9200_udc_data = {
 };
 
 static struct at91_cf_data __initdata eb9200_cf_data = {
+	.irq_pin	= -EINVAL,
 	.det_pin	= AT91_PIN_PB0,
+	.vcc_pin	= -EINVAL,
 	.rst_pin	= AT91_PIN_PC5,
-	// .irq_pin	= ... not connected
-	// .vcc_pin	= ... always powered
 };
 
 static struct at91_mmc_data __initdata eb9200_mmc_data = {
 	.slot_b		= 0,
 	.wire4		= 1,
+	.det_pin	= -EINVAL,
+	.wp_pin		= -EINVAL,
+	.vcc_pin	= -EINVAL,
 };
 
 static struct i2c_board_info __initdata eb9200_i2c_devices[] = {
diff --git a/arch/arm/mach-at91/board-ecbat91.c b/arch/arm/mach-at91/board-ecbat91.c
index 2f9c16d29212..69966ce4d776 100644
--- a/arch/arm/mach-at91/board-ecbat91.c
+++ b/arch/arm/mach-at91/board-ecbat91.c
@@ -64,18 +64,23 @@ static void __init ecb_at91init_early(void)
 	at91_set_serial_console(0);
 }
 
-static struct at91_eth_data __initdata ecb_at91eth_data = {
+static struct macb_platform_data __initdata ecb_at91eth_data = {
 	.phy_irq_pin	= AT91_PIN_PC4,
 	.is_rmii	= 0,
 };
 
 static struct at91_usbh_data __initdata ecb_at91usbh_data = {
 	.ports		= 1,
+	.vbus_pin	= {-EINVAL, -EINVAL},
+	.overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
 static struct at91_mmc_data __initdata ecb_at91mmc_data = {
 	.slot_b		= 0,
 	.wire4		= 1,
+	.det_pin	= -EINVAL,
+	.wp_pin		= -EINVAL,
+	.vcc_pin	= -EINVAL,
 };
 
 
diff --git a/arch/arm/mach-at91/board-eco920.c b/arch/arm/mach-at91/board-eco920.c
index 8252c722607b..07ef35b0ec2c 100644
--- a/arch/arm/mach-at91/board-eco920.c
+++ b/arch/arm/mach-at91/board-eco920.c
@@ -47,13 +47,15 @@ static void __init eco920_init_early(void)
 	at91_set_serial_console(0);
 }
 
-static struct at91_eth_data __initdata eco920_eth_data = {
+static struct macb_platform_data __initdata eco920_eth_data = {
 	.phy_irq_pin	= AT91_PIN_PC2,
 	.is_rmii	= 1,
 };
 
 static struct at91_usbh_data __initdata eco920_usbh_data = {
 	.ports		= 1,
+	.vbus_pin	= {-EINVAL, -EINVAL},
+	.overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
 static struct at91_udc_data __initdata eco920_udc_data = {
@@ -64,6 +66,9 @@ static struct at91_udc_data __initdata eco920_udc_data = {
 static struct at91_mmc_data __initdata eco920_mmc_data = {
 	.slot_b		= 0,
 	.wire4		= 0,
+	.det_pin	= -EINVAL,
+	.wp_pin		= -EINVAL,
+	.vcc_pin	= -EINVAL,
 };
 
 static struct physmap_flash_data eco920_flash_data = {
diff --git a/arch/arm/mach-at91/board-flexibity.c b/arch/arm/mach-at91/board-flexibity.c
index 4c3f65d9c59b..eec02cd57ced 100644
--- a/arch/arm/mach-at91/board-flexibity.c
+++ b/arch/arm/mach-at91/board-flexibity.c
@@ -52,12 +52,14 @@ static void __init flexibity_init_early(void)
 /* USB Host port */
 static struct at91_usbh_data __initdata flexibity_usbh_data = {
 	.ports		= 2,
+	.vbus_pin	= {-EINVAL, -EINVAL},
+	.overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
 /* USB Device port */
 static struct at91_udc_data __initdata flexibity_udc_data = {
 	.vbus_pin	= AT91_PIN_PC5,
-	.pullup_pin	= 0,		/* pull-up driven by UDC */
+	.pullup_pin	= -EINVAL,		/* pull-up driven by UDC */
 };
 
 /* SPI devices */
@@ -76,6 +78,7 @@ static struct at91_mmc_data __initdata flexibity_mmc_data = {
 	.wire4		= 1,
 	.det_pin	= AT91_PIN_PC9,
 	.wp_pin		= AT91_PIN_PC4,
+	.vcc_pin	= -EINVAL,
 };
 
 /* LEDs */
diff --git a/arch/arm/mach-at91/board-foxg20.c b/arch/arm/mach-at91/board-foxg20.c
index f27d1a780cfa..caf017f0f4ee 100644
--- a/arch/arm/mach-at91/board-foxg20.c
+++ b/arch/arm/mach-at91/board-foxg20.c
@@ -106,6 +106,8 @@ static void __init foxg20_init_early(void)
  */
 static struct at91_usbh_data __initdata foxg20_usbh_data = {
 	.ports		= 2,
+	.vbus_pin	= {-EINVAL, -EINVAL},
+	.overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
 /*
@@ -113,7 +115,7 @@ static struct at91_usbh_data __initdata foxg20_usbh_data = {
  */
 static struct at91_udc_data __initdata foxg20_udc_data = {
 	.vbus_pin	= AT91_PIN_PC6,
-	.pullup_pin	= 0,		/* pull-up driven by UDC */
+	.pullup_pin	= -EINVAL,		/* pull-up driven by UDC */
 };
 
 
@@ -135,7 +137,7 @@ static struct spi_board_info foxg20_spi_devices[] = {
 /*
  * MACB Ethernet device
  */
-static struct at91_eth_data __initdata foxg20_macb_data = {
+static struct macb_platform_data __initdata foxg20_macb_data = {
 	.phy_irq_pin	= AT91_PIN_PA7,
 	.is_rmii	= 1,
 };
@@ -147,6 +149,9 @@ static struct at91_eth_data __initdata foxg20_macb_data = {
 static struct at91_mmc_data __initdata foxg20_mmc_data = {
 	.slot_b		= 1,
 	.wire4		= 1,
+	.det_pin	= -EINVAL,
+	.wp_pin		= -EINVAL,
+	.vcc_pin	= -EINVAL,
 };
 
 
diff --git a/arch/arm/mach-at91/board-gsia18s.c b/arch/arm/mach-at91/board-gsia18s.c
index 2e95949737e6..230e71969fb7 100644
--- a/arch/arm/mach-at91/board-gsia18s.c
+++ b/arch/arm/mach-at91/board-gsia18s.c
@@ -80,6 +80,8 @@ static void __init gsia18s_init_early(void)
  */
 static struct at91_usbh_data __initdata usbh_data = {
 	.ports		= 2,
+	.vbus_pin	= {-EINVAL, -EINVAL},
+	.overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
 /*
@@ -87,13 +89,13 @@ static struct at91_usbh_data __initdata usbh_data = {
  */
 static struct at91_udc_data __initdata udc_data = {
 	.vbus_pin	= AT91_PIN_PA22,
-	.pullup_pin	= 0,		/* pull-up driven by UDC */
+	.pullup_pin	= -EINVAL,		/* pull-up driven by UDC */
 };
 
 /*
  * MACB Ethernet device
  */
-static struct at91_eth_data __initdata macb_data = {
+static struct macb_platform_data __initdata macb_data = {
 	.phy_irq_pin	= AT91_PIN_PA28,
 	.is_rmii	= 1,
 };
@@ -530,6 +532,7 @@ static struct i2c_board_info __initdata gsia18s_i2c_devices[] = {
 static struct at91_cf_data __initdata gsia18s_cf1_data = {
 	.irq_pin	= AT91_PIN_PA27,
 	.det_pin	= AT91_PIN_PB30,
+	.vcc_pin	= -EINVAL,
 	.rst_pin	= AT91_PIN_PB31,
 	.chipselect	= 5,
 	.flags		= AT91_CF_TRUE_IDE,
diff --git a/arch/arm/mach-at91/board-kafa.c b/arch/arm/mach-at91/board-kafa.c
index 3bae73e63633..efde1b2327c8 100644
--- a/arch/arm/mach-at91/board-kafa.c
+++ b/arch/arm/mach-at91/board-kafa.c
@@ -61,13 +61,15 @@ static void __init kafa_init_early(void)
 	at91_set_serial_console(0);
 }
 
-static struct at91_eth_data __initdata kafa_eth_data = {
+static struct macb_platform_data __initdata kafa_eth_data = {
 	.phy_irq_pin	= AT91_PIN_PC4,
 	.is_rmii	= 0,
 };
 
 static struct at91_usbh_data __initdata kafa_usbh_data = {
 	.ports		= 1,
+	.vbus_pin	= {-EINVAL, -EINVAL},
+	.overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
 static struct at91_udc_data __initdata kafa_udc_data = {
diff --git a/arch/arm/mach-at91/board-kb9202.c b/arch/arm/mach-at91/board-kb9202.c
index e61351ffad50..d75a4a2ad9c2 100644
--- a/arch/arm/mach-at91/board-kb9202.c
+++ b/arch/arm/mach-at91/board-kb9202.c
@@ -69,13 +69,15 @@ static void __init kb9202_init_early(void)
 	at91_set_serial_console(0);
 }
 
-static struct at91_eth_data __initdata kb9202_eth_data = {
+static struct macb_platform_data __initdata kb9202_eth_data = {
 	.phy_irq_pin	= AT91_PIN_PB29,
 	.is_rmii	= 0,
 };
 
 static struct at91_usbh_data __initdata kb9202_usbh_data = {
 	.ports		= 1,
+	.vbus_pin	= {-EINVAL, -EINVAL},
+	.overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
 static struct at91_udc_data __initdata kb9202_udc_data = {
@@ -87,6 +89,8 @@ static struct at91_mmc_data __initdata kb9202_mmc_data = {
 	.det_pin	= AT91_PIN_PB2,
 	.slot_b		= 0,
 	.wire4		= 1,
+	.wp_pin		= -EINVAL,
+	.vcc_pin	= -EINVAL,
 };
 
 static struct mtd_partition __initdata kb9202_nand_partition[] = {
@@ -100,7 +104,7 @@ static struct mtd_partition __initdata kb9202_nand_partition[] = {
 static struct atmel_nand_data __initdata kb9202_nand_data = {
 	.ale		= 22,
 	.cle		= 21,
-	// .det_pin	= ... not there
+	.det_pin	= -EINVAL,
 	.rdy_pin	= AT91_PIN_PC29,
 	.enable_pin	= AT91_PIN_PC28,
 	.parts		= kb9202_nand_partition,
diff --git a/arch/arm/mach-at91/board-neocore926.c b/arch/arm/mach-at91/board-neocore926.c
index ef816c17dc61..3f8617c0e04e 100644
--- a/arch/arm/mach-at91/board-neocore926.c
+++ b/arch/arm/mach-at91/board-neocore926.c
@@ -72,6 +72,7 @@ static void __init neocore926_init_early(void)
 static struct at91_usbh_data __initdata neocore926_usbh_data = {
 	.ports		= 2,
 	.vbus_pin	= { AT91_PIN_PA24, AT91_PIN_PA21 },
+	.overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
 /*
@@ -79,7 +80,7 @@ static struct at91_usbh_data __initdata neocore926_usbh_data = {
  */
 static struct at91_udc_data __initdata neocore926_udc_data = {
 	.vbus_pin	= AT91_PIN_PA25,
-	.pullup_pin	= 0,		/* pull-up driven by UDC */
+	.pullup_pin	= -EINVAL,		/* pull-up driven by UDC */
 };
 
 
@@ -149,13 +150,14 @@ static struct at91_mmc_data __initdata neocore926_mmc_data = {
 	.wire4		= 1,
 	.det_pin	= AT91_PIN_PE18,
 	.wp_pin		= AT91_PIN_PE19,
+	.vcc_pin	= -EINVAL,
 };
 
 
 /*
  * MACB Ethernet device
  */
-static struct at91_eth_data __initdata neocore926_macb_data = {
+static struct macb_platform_data __initdata neocore926_macb_data = {
 	.phy_irq_pin	= AT91_PIN_PE31,
 	.is_rmii	= 1,
 };
@@ -190,6 +192,7 @@ static struct atmel_nand_data __initdata neocore926_nand_data = {
 	.enable_pin		= AT91_PIN_PD15,
 	.parts			= neocore926_nand_partition,
 	.num_parts		= ARRAY_SIZE(neocore926_nand_partition),
+	.det_pin		= -EINVAL,
 };
 
 static struct sam9_smc_config __initdata neocore926_nand_smc_config = {
@@ -213,7 +216,7 @@ static struct sam9_smc_config __initdata neocore926_nand_smc_config = {
 static void __init neocore926_add_device_nand(void)
 {
 	/* configure chip-select 3 (NAND) */
-	sam9_smc_configure(3, &neocore926_nand_smc_config);
+	sam9_smc_configure(0, 3, &neocore926_nand_smc_config);
 
 	at91_add_device_nand(&neocore926_nand_data);
 }
diff --git a/arch/arm/mach-at91/board-pcontrol-g20.c b/arch/arm/mach-at91/board-pcontrol-g20.c
index 49e3f699b48e..b4a12fc184c8 100644
--- a/arch/arm/mach-at91/board-pcontrol-g20.c
+++ b/arch/arm/mach-at91/board-pcontrol-g20.c
@@ -96,9 +96,9 @@ static struct sam9_smc_config __initdata pcontrol_smc_config[2] = { {
 static void __init add_device_pcontrol(void)
 {
 	/* configure chip-select 4 (IO compatible to 8051  X4 ) */
-	sam9_smc_configure(4, &pcontrol_smc_config[0]);
+	sam9_smc_configure(0, 4, &pcontrol_smc_config[0]);
 	/* configure chip-select 7 (FerroRAM 256KiBx16bit MR2A16A  D4 ) */
-	sam9_smc_configure(7, &pcontrol_smc_config[1]);
+	sam9_smc_configure(0, 7, &pcontrol_smc_config[1]);
 }
 
 
@@ -107,6 +107,8 @@ static void __init add_device_pcontrol(void)
  */
 static struct at91_usbh_data __initdata usbh_data = {
 	.ports		= 2,
+	.vbus_pin	= {-EINVAL, -EINVAL},
+	.overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
 
@@ -122,7 +124,7 @@ static struct at91_udc_data __initdata pcontrol_g20_udc_data = {
 /*
  * MACB Ethernet device
  */
-static struct at91_eth_data __initdata macb_data = {
+static struct macb_platform_data __initdata macb_data = {
 	.phy_irq_pin	= AT91_PIN_PA28,
 	.is_rmii	= 1,
 };
diff --git a/arch/arm/mach-at91/board-picotux200.c b/arch/arm/mach-at91/board-picotux200.c
index 0a8fe6a1b7c8..ab024fa11d5c 100644
--- a/arch/arm/mach-at91/board-picotux200.c
+++ b/arch/arm/mach-at91/board-picotux200.c
@@ -60,13 +60,15 @@ static void __init picotux200_init_early(void)
 	at91_set_serial_console(0);
 }
 
-static struct at91_eth_data __initdata picotux200_eth_data = {
+static struct macb_platform_data __initdata picotux200_eth_data = {
 	.phy_irq_pin	= AT91_PIN_PC4,
 	.is_rmii	= 1,
 };
 
 static struct at91_usbh_data __initdata picotux200_usbh_data = {
 	.ports		= 1,
+	.vbus_pin	= {-EINVAL, -EINVAL},
+	.overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
 static struct at91_mmc_data __initdata picotux200_mmc_data = {
@@ -74,6 +76,7 @@ static struct at91_mmc_data __initdata picotux200_mmc_data = {
 	.slot_b		= 0,
 	.wire4		= 1,
 	.wp_pin		= AT91_PIN_PA17,
+	.vcc_pin	= -EINVAL,
 };
 
 #define PICOTUX200_FLASH_BASE	AT91_CHIPSELECT_0
diff --git a/arch/arm/mach-at91/board-qil-a9260.c b/arch/arm/mach-at91/board-qil-a9260.c
index 07421bdb88ea..e029d220cb84 100644
--- a/arch/arm/mach-at91/board-qil-a9260.c
+++ b/arch/arm/mach-at91/board-qil-a9260.c
@@ -77,6 +77,8 @@ static void __init ek_init_early(void)
  */
 static struct at91_usbh_data __initdata ek_usbh_data = {
 	.ports		= 2,
+	.vbus_pin	= {-EINVAL, -EINVAL},
+	.overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
 /*
@@ -84,7 +86,7 @@ static struct at91_usbh_data __initdata ek_usbh_data = {
  */
 static struct at91_udc_data __initdata ek_udc_data = {
 	.vbus_pin	= AT91_PIN_PC5,
-	.pullup_pin	= 0,		/* pull-up driven by UDC */
+	.pullup_pin	= -EINVAL,		/* pull-up driven by UDC */
 };
 
 /*
@@ -104,7 +106,7 @@ static struct spi_board_info ek_spi_devices[] = {
 /*
  * MACB Ethernet device
  */
-static struct at91_eth_data __initdata ek_macb_data = {
+static struct macb_platform_data __initdata ek_macb_data = {
 	.phy_irq_pin	= AT91_PIN_PA31,
 	.is_rmii	= 1,
 };
@@ -133,7 +135,7 @@ static struct mtd_partition __initdata ek_nand_partition[] = {
 static struct atmel_nand_data __initdata ek_nand_data = {
 	.ale		= 21,
 	.cle		= 22,
-//	.det_pin	= ... not connected
+	.det_pin	= -EINVAL,
 	.rdy_pin	= AT91_PIN_PC13,
 	.enable_pin	= AT91_PIN_PC14,
 	.parts		= ek_nand_partition,
@@ -161,7 +163,7 @@ static struct sam9_smc_config __initdata ek_nand_smc_config = {
 static void __init ek_add_device_nand(void)
 {
 	/* configure chip-select 3 (NAND) */
-	sam9_smc_configure(3, &ek_nand_smc_config);
+	sam9_smc_configure(0, 3, &ek_nand_smc_config);
 
 	at91_add_device_nand(&ek_nand_data);
 }
@@ -172,9 +174,9 @@ static void __init ek_add_device_nand(void)
 static struct at91_mmc_data __initdata ek_mmc_data = {
 	.slot_b		= 0,
 	.wire4		= 1,
-//	.det_pin	= ... not connected
-//	.wp_pin		= ... not connected
-//	.vcc_pin	= ... not connected
+	.det_pin	= -EINVAL,
+	.wp_pin		= -EINVAL,
+	.vcc_pin	= -EINVAL,
 };
 
 /*
@@ -251,7 +253,7 @@ static void __init ek_board_init(void)
 	/* LEDs */
 	at91_gpio_leds(ek_leds, ARRAY_SIZE(ek_leds));
 	/* shutdown controller, wakeup button (5 msec low) */
-	at91_sys_write(AT91_SHDW_MR, AT91_SHDW_CPTWK0_(10) | AT91_SHDW_WKMODE0_LOW
+	at91_shdwc_write(AT91_SHDW_MR, AT91_SHDW_CPTWK0_(10) | AT91_SHDW_WKMODE0_LOW
 				| AT91_SHDW_RTTWKEN);
 }
 
diff --git a/arch/arm/mach-at91/board-rm9200dk.c b/arch/arm/mach-at91/board-rm9200dk.c
index 80a8c9c6e922..782f37946af5 100644
--- a/arch/arm/mach-at91/board-rm9200dk.c
+++ b/arch/arm/mach-at91/board-rm9200dk.c
@@ -65,13 +65,15 @@ static void __init dk_init_early(void)
 	at91_set_serial_console(0);
 }
 
-static struct at91_eth_data __initdata dk_eth_data = {
+static struct macb_platform_data __initdata dk_eth_data = {
 	.phy_irq_pin	= AT91_PIN_PC4,
 	.is_rmii	= 1,
 };
 
 static struct at91_usbh_data __initdata dk_usbh_data = {
 	.ports		= 2,
+	.vbus_pin	= {-EINVAL, -EINVAL},
+	.overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
 static struct at91_udc_data __initdata dk_udc_data = {
@@ -80,16 +82,19 @@ static struct at91_udc_data __initdata dk_udc_data = {
 };
 
 static struct at91_cf_data __initdata dk_cf_data = {
+	.irq_pin	= -EINVAL,
 	.det_pin	= AT91_PIN_PB0,
+	.vcc_pin	= -EINVAL,
 	.rst_pin	= AT91_PIN_PC5,
-	// .irq_pin	= ... not connected
-	// .vcc_pin	= ... always powered
 };
 
 #ifndef CONFIG_MTD_AT91_DATAFLASH_CARD
 static struct at91_mmc_data __initdata dk_mmc_data = {
 	.slot_b		= 0,
 	.wire4		= 1,
+	.det_pin	= -EINVAL,
+	.wp_pin		= -EINVAL,
+	.vcc_pin	= -EINVAL,
 };
 #endif
 
@@ -143,7 +148,7 @@ static struct atmel_nand_data __initdata dk_nand_data = {
 	.cle		= 21,
 	.det_pin	= AT91_PIN_PB1,
 	.rdy_pin	= AT91_PIN_PC2,
-	// .enable_pin	= ... not there
+	.enable_pin	= -EINVAL,
 	.parts		= dk_nand_partition,
 	.num_parts	= ARRAY_SIZE(dk_nand_partition),
 };
diff --git a/arch/arm/mach-at91/board-rm9200ek.c b/arch/arm/mach-at91/board-rm9200ek.c
index 99fd7f8aee0e..ef7c12a92246 100644
--- a/arch/arm/mach-at91/board-rm9200ek.c
+++ b/arch/arm/mach-at91/board-rm9200ek.c
@@ -65,13 +65,15 @@ static void __init ek_init_early(void)
 	at91_set_serial_console(0);
 }
 
-static struct at91_eth_data __initdata ek_eth_data = {
+static struct macb_platform_data __initdata ek_eth_data = {
 	.phy_irq_pin	= AT91_PIN_PC4,
 	.is_rmii	= 1,
 };
 
 static struct at91_usbh_data __initdata ek_usbh_data = {
 	.ports		= 2,
+	.vbus_pin	= {-EINVAL, -EINVAL},
+	.overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
 static struct at91_udc_data __initdata ek_udc_data = {
@@ -85,6 +87,7 @@ static struct at91_mmc_data __initdata ek_mmc_data = {
 	.slot_b		= 0,
 	.wire4		= 1,
 	.wp_pin		= AT91_PIN_PA17,
+	.vcc_pin	= -EINVAL,
 };
 #endif
 
diff --git a/arch/arm/mach-at91/board-rsi-ews.c b/arch/arm/mach-at91/board-rsi-ews.c
index e927df0175df..af0750fafa29 100644
--- a/arch/arm/mach-at91/board-rsi-ews.c
+++ b/arch/arm/mach-at91/board-rsi-ews.c
@@ -60,7 +60,7 @@ static void __init rsi_ews_init_early(void)
 /*
  * Ethernet
  */
-static struct at91_eth_data rsi_ews_eth_data __initdata = {
+static struct macb_platform_data rsi_ews_eth_data __initdata = {
 	.phy_irq_pin	= AT91_PIN_PC4,
 	.is_rmii	= 1,
 };
@@ -70,6 +70,8 @@ static struct at91_eth_data rsi_ews_eth_data __initdata = {
  */
 static struct at91_usbh_data rsi_ews_usbh_data __initdata = {
 	.ports		= 1,
+	.vbus_pin	= {-EINVAL, -EINVAL},
+	.overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
 /*
diff --git a/arch/arm/mach-at91/board-sam9-l9260.c b/arch/arm/mach-at91/board-sam9-l9260.c
index 072d53af98d9..84bce587735f 100644
--- a/arch/arm/mach-at91/board-sam9-l9260.c
+++ b/arch/arm/mach-at91/board-sam9-l9260.c
@@ -72,6 +72,8 @@ static void __init ek_init_early(void)
  */
 static struct at91_usbh_data __initdata ek_usbh_data = {
 	.ports		= 2,
+	.vbus_pin	= {-EINVAL, -EINVAL},
+	.overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
 /*
@@ -79,7 +81,7 @@ static struct at91_usbh_data __initdata ek_usbh_data = {
  */
 static struct at91_udc_data __initdata ek_udc_data = {
 	.vbus_pin	= AT91_PIN_PC5,
-	.pullup_pin	= 0,		/* pull-up driven by UDC */
+	.pullup_pin	= -EINVAL,		/* pull-up driven by UDC */
 };
 
 
@@ -109,7 +111,7 @@ static struct spi_board_info ek_spi_devices[] = {
 /*
  * MACB Ethernet device
  */
-static struct at91_eth_data __initdata ek_macb_data = {
+static struct macb_platform_data __initdata ek_macb_data = {
 	.phy_irq_pin	= AT91_PIN_PA7,
 	.is_rmii	= 0,
 };
@@ -134,7 +136,7 @@ static struct mtd_partition __initdata ek_nand_partition[] = {
 static struct atmel_nand_data __initdata ek_nand_data = {
 	.ale		= 21,
 	.cle		= 22,
-//	.det_pin	= ... not connected
+	.det_pin	= -EINVAL,
 	.rdy_pin	= AT91_PIN_PC13,
 	.enable_pin	= AT91_PIN_PC14,
 	.parts		= ek_nand_partition,
@@ -162,7 +164,7 @@ static struct sam9_smc_config __initdata ek_nand_smc_config = {
 static void __init ek_add_device_nand(void)
 {
 	/* configure chip-select 3 (NAND) */
-	sam9_smc_configure(3, &ek_nand_smc_config);
+	sam9_smc_configure(0, 3, &ek_nand_smc_config);
 
 	at91_add_device_nand(&ek_nand_data);
 }
@@ -176,7 +178,7 @@ static struct at91_mmc_data __initdata ek_mmc_data = {
 	.wire4		= 1,
 	.det_pin	= AT91_PIN_PC8,
 	.wp_pin		= AT91_PIN_PC4,
-//	.vcc_pin	= ... not connected
+	.vcc_pin	= -EINVAL,
 };
 
 static void __init ek_board_init(void)
diff --git a/arch/arm/mach-at91/board-sam9260ek.c b/arch/arm/mach-at91/board-sam9260ek.c
index 4f10181a0782..be8233bcabdc 100644
--- a/arch/arm/mach-at91/board-sam9260ek.c
+++ b/arch/arm/mach-at91/board-sam9260ek.c
@@ -75,6 +75,8 @@ static void __init ek_init_early(void)
  */
 static struct at91_usbh_data __initdata ek_usbh_data = {
 	.ports		= 2,
+	.vbus_pin	= {-EINVAL, -EINVAL},
+	.overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
 /*
@@ -82,7 +84,7 @@ static struct at91_usbh_data __initdata ek_usbh_data = {
  */
 static struct at91_udc_data __initdata ek_udc_data = {
 	.vbus_pin	= AT91_PIN_PC5,
-	.pullup_pin	= 0,		/* pull-up driven by UDC */
+	.pullup_pin	= -EINVAL,		/* pull-up driven by UDC */
 };
 
 
@@ -151,7 +153,7 @@ static struct spi_board_info ek_spi_devices[] = {
 /*
  * MACB Ethernet device
  */
-static struct at91_eth_data __initdata ek_macb_data = {
+static struct macb_platform_data __initdata ek_macb_data = {
 	.phy_irq_pin	= AT91_PIN_PA7,
 	.is_rmii	= 1,
 };
@@ -176,7 +178,7 @@ static struct mtd_partition __initdata ek_nand_partition[] = {
 static struct atmel_nand_data __initdata ek_nand_data = {
 	.ale		= 21,
 	.cle		= 22,
-//	.det_pin	= ... not connected
+	.det_pin	= -EINVAL,
 	.rdy_pin	= AT91_PIN_PC13,
 	.enable_pin	= AT91_PIN_PC14,
 	.parts		= ek_nand_partition,
@@ -211,7 +213,7 @@ static void __init ek_add_device_nand(void)
 		ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
 
 	/* configure chip-select 3 (NAND) */
-	sam9_smc_configure(3, &ek_nand_smc_config);
+	sam9_smc_configure(0, 3, &ek_nand_smc_config);
 
 	at91_add_device_nand(&ek_nand_data);
 }
@@ -223,9 +225,9 @@ static void __init ek_add_device_nand(void)
 static struct at91_mmc_data __initdata ek_mmc_data = {
 	.slot_b		= 1,
 	.wire4		= 1,
-//	.det_pin	= ... not connected
-//	.wp_pin		= ... not connected
-//	.vcc_pin	= ... not connected
+	.det_pin	= -EINVAL,
+	.wp_pin		= -EINVAL,
+	.vcc_pin	= -EINVAL,
 };
 
 
diff --git a/arch/arm/mach-at91/board-sam9261ek.c b/arch/arm/mach-at91/board-sam9261ek.c
index b005b738e8ff..40895072a1a7 100644
--- a/arch/arm/mach-at91/board-sam9261ek.c
+++ b/arch/arm/mach-at91/board-sam9261ek.c
@@ -131,7 +131,7 @@ static struct sam9_smc_config __initdata dm9000_smc_config = {
 static void __init ek_add_device_dm9000(void)
 {
 	/* Configure chip-select 2 (DM9000) */
-	sam9_smc_configure(2, &dm9000_smc_config);
+	sam9_smc_configure(0, 2, &dm9000_smc_config);
 
 	/* Configure Reset signal as output */
 	at91_set_gpio_output(AT91_PIN_PC10, 0);
@@ -151,6 +151,8 @@ static void __init ek_add_device_dm9000(void) {}
  */
 static struct at91_usbh_data __initdata ek_usbh_data = {
 	.ports		= 2,
+	.vbus_pin	= {-EINVAL, -EINVAL},
+	.overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
 
@@ -159,7 +161,7 @@ static struct at91_usbh_data __initdata ek_usbh_data = {
  */
 static struct at91_udc_data __initdata ek_udc_data = {
 	.vbus_pin	= AT91_PIN_PB29,
-	.pullup_pin	= 0,		/* pull-up driven by UDC */
+	.pullup_pin	= -EINVAL,		/* pull-up driven by UDC */
 };
 
 
@@ -182,7 +184,7 @@ static struct mtd_partition __initdata ek_nand_partition[] = {
 static struct atmel_nand_data __initdata ek_nand_data = {
 	.ale		= 22,
 	.cle		= 21,
-//	.det_pin	= ... not connected
+	.det_pin	= -EINVAL,
 	.rdy_pin	= AT91_PIN_PC15,
 	.enable_pin	= AT91_PIN_PC14,
 	.parts		= ek_nand_partition,
@@ -217,7 +219,7 @@ static void __init ek_add_device_nand(void)
 		ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
 
 	/* configure chip-select 3 (NAND) */
-	sam9_smc_configure(3, &ek_nand_smc_config);
+	sam9_smc_configure(0, 3, &ek_nand_smc_config);
 
 	at91_add_device_nand(&ek_nand_data);
 }
@@ -345,6 +347,9 @@ static struct spi_board_info ek_spi_devices[] = {
  */
 static struct at91_mmc_data __initdata ek_mmc_data = {
 	.wire4		= 1,
+	.det_pin	= -EINVAL,
+	.wp_pin		= -EINVAL,
+	.vcc_pin	= -EINVAL,
 };
 
 #endif /* CONFIG_SPI_ATMEL_* */
diff --git a/arch/arm/mach-at91/board-sam9263ek.c b/arch/arm/mach-at91/board-sam9263ek.c
index bccdcf23caa1..29f66052fe63 100644
--- a/arch/arm/mach-at91/board-sam9263ek.c
+++ b/arch/arm/mach-at91/board-sam9263ek.c
@@ -74,6 +74,7 @@ static void __init ek_init_early(void)
 static struct at91_usbh_data __initdata ek_usbh_data = {
 	.ports		= 2,
 	.vbus_pin	= { AT91_PIN_PA24, AT91_PIN_PA21 },
+	.overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
 /*
@@ -81,7 +82,7 @@ static struct at91_usbh_data __initdata ek_usbh_data = {
  */
 static struct at91_udc_data __initdata ek_udc_data = {
 	.vbus_pin	= AT91_PIN_PA25,
-	.pullup_pin	= 0,		/* pull-up driven by UDC */
+	.pullup_pin	= -EINVAL,		/* pull-up driven by UDC */
 };
 
 
@@ -151,14 +152,14 @@ static struct at91_mmc_data __initdata ek_mmc_data = {
 	.wire4		= 1,
 	.det_pin	= AT91_PIN_PE18,
 	.wp_pin		= AT91_PIN_PE19,
-//	.vcc_pin	= ... not connected
+	.vcc_pin	= -EINVAL,
 };
 
 
 /*
  * MACB Ethernet device
  */
-static struct at91_eth_data __initdata ek_macb_data = {
+static struct macb_platform_data __initdata ek_macb_data = {
 	.phy_irq_pin	= AT91_PIN_PE31,
 	.is_rmii	= 1,
 };
@@ -183,7 +184,7 @@ static struct mtd_partition __initdata ek_nand_partition[] = {
 static struct atmel_nand_data __initdata ek_nand_data = {
 	.ale		= 21,
 	.cle		= 22,
-//	.det_pin	= ... not connected
+	.det_pin	= -EINVAL,
 	.rdy_pin	= AT91_PIN_PA22,
 	.enable_pin	= AT91_PIN_PD15,
 	.parts		= ek_nand_partition,
@@ -218,7 +219,7 @@ static void __init ek_add_device_nand(void)
 		ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
 
 	/* configure chip-select 3 (NAND) */
-	sam9_smc_configure(3, &ek_nand_smc_config);
+	sam9_smc_configure(0, 3, &ek_nand_smc_config);
 
 	at91_add_device_nand(&ek_nand_data);
 }
@@ -353,6 +354,7 @@ static void __init ek_add_device_buttons(void) {}
  * reset_pin is not connected: NRST
  */
 static struct ac97c_platform_data ek_ac97_data = {
+	.reset_pin	= -EINVAL,
 };
 
 
diff --git a/arch/arm/mach-at91/board-sam9g20ek.c b/arch/arm/mach-at91/board-sam9g20ek.c
index 64fc75c9d0ac..843d6286c6f4 100644
--- a/arch/arm/mach-at91/board-sam9g20ek.c
+++ b/arch/arm/mach-at91/board-sam9g20ek.c
@@ -86,6 +86,8 @@ static void __init ek_init_early(void)
  */
 static struct at91_usbh_data __initdata ek_usbh_data = {
 	.ports		= 2,
+	.vbus_pin	= {-EINVAL, -EINVAL},
+	.overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
 /*
@@ -93,7 +95,7 @@ static struct at91_usbh_data __initdata ek_usbh_data = {
  */
 static struct at91_udc_data __initdata ek_udc_data = {
 	.vbus_pin	= AT91_PIN_PC5,
-	.pullup_pin	= 0,		/* pull-up driven by UDC */
+	.pullup_pin	= -EINVAL,		/* pull-up driven by UDC */
 };
 
 
@@ -123,7 +125,7 @@ static struct spi_board_info ek_spi_devices[] = {
 /*
  * MACB Ethernet device
  */
-static struct at91_eth_data __initdata ek_macb_data = {
+static struct macb_platform_data __initdata ek_macb_data = {
 	.phy_irq_pin	= AT91_PIN_PA7,
 	.is_rmii	= 1,
 };
@@ -163,6 +165,7 @@ static struct atmel_nand_data __initdata ek_nand_data = {
 	.cle		= 22,
 	.rdy_pin	= AT91_PIN_PC13,
 	.enable_pin	= AT91_PIN_PC14,
+	.det_pin	= -EINVAL,
 	.parts		= ek_nand_partition,
 	.num_parts	= ARRAY_SIZE(ek_nand_partition),
 };
@@ -195,7 +198,7 @@ static void __init ek_add_device_nand(void)
 		ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
 
 	/* configure chip-select 3 (NAND) */
-	sam9_smc_configure(3, &ek_nand_smc_config);
+	sam9_smc_configure(0, 3, &ek_nand_smc_config);
 
 	at91_add_device_nand(&ek_nand_data);
 }
@@ -210,6 +213,7 @@ static struct mci_platform_data __initdata ek_mmc_data = {
 	.slot[1] = {
 		.bus_width	= 4,
 		.detect_pin	= AT91_PIN_PC9,
+		.wp_pin		= -EINVAL,
 	},
 
 };
@@ -218,6 +222,8 @@ static struct at91_mmc_data __initdata ek_mmc_data = {
 	.slot_b		= 1,	/* Only one slot so use slot B */
 	.wire4		= 1,
 	.det_pin	= AT91_PIN_PC9,
+	.wp_pin		= -EINVAL,
+	.vcc_pin	= -EINVAL,
 };
 #endif
 
@@ -227,6 +233,7 @@ static void __init ek_add_device_mmc(void)
 	if (ek_have_2mmc()) {
 		ek_mmc_data.slot[0].bus_width = 4;
 		ek_mmc_data.slot[0].detect_pin = AT91_PIN_PC2;
+		ek_mmc_data.slot[0].wp_pin = -1;
 	}
 	at91_add_device_mci(0, &ek_mmc_data);
 #else
diff --git a/arch/arm/mach-at91/board-sam9m10g45ek.c b/arch/arm/mach-at91/board-sam9m10g45ek.c
index 92de9127923a..ea0d1b9c2b7b 100644
--- a/arch/arm/mach-at91/board-sam9m10g45ek.c
+++ b/arch/arm/mach-at91/board-sam9m10g45ek.c
@@ -69,6 +69,7 @@ static void __init ek_init_early(void)
 static struct at91_usbh_data __initdata ek_usbh_hs_data = {
 	.ports		= 2,
 	.vbus_pin	= {AT91_PIN_PD1, AT91_PIN_PD3},
+	.overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
 
@@ -100,6 +101,7 @@ static struct mci_platform_data __initdata mci0_data = {
 	.slot[0] = {
 		.bus_width	= 4,
 		.detect_pin	= AT91_PIN_PD10,
+		.wp_pin		= -EINVAL,
 	},
 };
 
@@ -115,7 +117,7 @@ static struct mci_platform_data __initdata mci1_data = {
 /*
  * MACB Ethernet device
  */
-static struct at91_eth_data __initdata ek_macb_data = {
+static struct macb_platform_data __initdata ek_macb_data = {
 	.phy_irq_pin	= AT91_PIN_PD5,
 	.is_rmii	= 1,
 };
@@ -143,6 +145,7 @@ static struct atmel_nand_data __initdata ek_nand_data = {
 	.cle		= 22,
 	.rdy_pin	= AT91_PIN_PC8,
 	.enable_pin	= AT91_PIN_PC14,
+	.det_pin	= -EINVAL,
 	.parts		= ek_nand_partition,
 	.num_parts	= ARRAY_SIZE(ek_nand_partition),
 };
@@ -175,7 +178,7 @@ static void __init ek_add_device_nand(void)
 		ek_nand_smc_config.mode |= AT91_SMC_DBW_8;
 
 	/* configure chip-select 3 (NAND) */
-	sam9_smc_configure(3, &ek_nand_smc_config);
+	sam9_smc_configure(0, 3, &ek_nand_smc_config);
 
 	at91_add_device_nand(&ek_nand_data);
 }
@@ -330,6 +333,7 @@ static void __init ek_add_device_buttons(void) {}
  * reset_pin is not connected: NRST
  */
 static struct ac97c_platform_data ek_ac97_data = {
+	.reset_pin	= -EINVAL,
 };
 
 
diff --git a/arch/arm/mach-at91/board-sam9rlek.c b/arch/arm/mach-at91/board-sam9rlek.c
index b2b748239f36..c1366d0032bf 100644
--- a/arch/arm/mach-at91/board-sam9rlek.c
+++ b/arch/arm/mach-at91/board-sam9rlek.c
@@ -67,8 +67,8 @@ static struct usba_platform_data __initdata ek_usba_udc_data = {
 static struct at91_mmc_data __initdata ek_mmc_data = {
 	.wire4		= 1,
 	.det_pin	= AT91_PIN_PA15,
-//	.wp_pin		= ... not connected
-//	.vcc_pin	= ... not connected
+	.wp_pin		= -EINVAL,
+	.vcc_pin	= -EINVAL,
 };
 
 
@@ -91,7 +91,7 @@ static struct mtd_partition __initdata ek_nand_partition[] = {
 static struct atmel_nand_data __initdata ek_nand_data = {
 	.ale		= 21,
 	.cle		= 22,
-//	.det_pin	= ... not connected
+	.det_pin	= -EINVAL,
 	.rdy_pin	= AT91_PIN_PD17,
 	.enable_pin	= AT91_PIN_PB6,
 	.parts		= ek_nand_partition,
@@ -119,7 +119,7 @@ static struct sam9_smc_config __initdata ek_nand_smc_config = {
 static void __init ek_add_device_nand(void)
 {
 	/* configure chip-select 3 (NAND) */
-	sam9_smc_configure(3, &ek_nand_smc_config);
+	sam9_smc_configure(0, 3, &ek_nand_smc_config);
 
 	at91_add_device_nand(&ek_nand_data);
 }
@@ -204,6 +204,7 @@ static struct atmel_lcdfb_info __initdata ek_lcdc_data;
  * reset_pin is not connected: NRST
  */
 static struct ac97c_platform_data ek_ac97_data = {
+	.reset_pin	= -EINVAL,
 };
 
 
diff --git a/arch/arm/mach-at91/board-snapper9260.c b/arch/arm/mach-at91/board-snapper9260.c
index 0df01c6e2d0c..4770db08e5a6 100644
--- a/arch/arm/mach-at91/board-snapper9260.c
+++ b/arch/arm/mach-at91/board-snapper9260.c
@@ -57,15 +57,19 @@ static void __init snapper9260_init_early(void)
 
 static struct at91_usbh_data __initdata snapper9260_usbh_data = {
 	.ports		= 2,
+	.vbus_pin	= {-EINVAL, -EINVAL},
+	.overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
 static struct at91_udc_data __initdata snapper9260_udc_data = {
 	.vbus_pin		= SNAPPER9260_IO_EXP_GPIO(5),
 	.vbus_active_low	= 1,
 	.vbus_polled		= 1,
+	.pullup_pin		= -EINVAL,
 };
 
-static struct at91_eth_data snapper9260_macb_data = {
+static struct macb_platform_data snapper9260_macb_data = {
+	.phy_irq_pin	= -EINVAL,
 	.is_rmii	= 1,
 };
 
@@ -104,6 +108,8 @@ static struct atmel_nand_data __initdata snapper9260_nand_data = {
 	.parts		= snapper9260_nand_partitions,
 	.num_parts	= ARRAY_SIZE(snapper9260_nand_partitions),
 	.bus_width_16	= 0,
+	.enable_pin	= -EINVAL,
+	.det_pin	= -EINVAL,
 };
 
 static struct sam9_smc_config __initdata snapper9260_nand_smc_config = {
@@ -149,7 +155,7 @@ static struct i2c_board_info __initdata snapper9260_i2c_devices[] = {
 static void __init snapper9260_add_device_nand(void)
 {
 	at91_set_A_periph(AT91_PIN_PC14, 0);
-	sam9_smc_configure(3, &snapper9260_nand_smc_config);
+	sam9_smc_configure(0, 3, &snapper9260_nand_smc_config);
 	at91_add_device_nand(&snapper9260_nand_data);
 }
 
diff --git a/arch/arm/mach-at91/board-stamp9g20.c b/arch/arm/mach-at91/board-stamp9g20.c
index 936e5fd7f406..72eb3b4d9ab6 100644
--- a/arch/arm/mach-at91/board-stamp9g20.c
+++ b/arch/arm/mach-at91/board-stamp9g20.c
@@ -85,6 +85,7 @@ static struct atmel_nand_data __initdata nand_data = {
 	.rdy_pin	= AT91_PIN_PC13,
 	.enable_pin	= AT91_PIN_PC14,
 	.bus_width_16	= 0,
+	.det_pin	= -EINVAL,
 };
 
 static struct sam9_smc_config __initdata nand_smc_config = {
@@ -108,7 +109,7 @@ static struct sam9_smc_config __initdata nand_smc_config = {
 static void __init add_device_nand(void)
 {
 	/* configure chip-select 3 (NAND) */
-	sam9_smc_configure(3, &nand_smc_config);
+	sam9_smc_configure(0, 3, &nand_smc_config);
 
 	at91_add_device_nand(&nand_data);
 }
@@ -122,12 +123,17 @@ static void __init add_device_nand(void)
 static struct mci_platform_data __initdata mmc_data = {
 	.slot[0] = {
 		.bus_width	= 4,
+		.detect_pin	= -1,
+		.wp_pin		= -1,
 	},
 };
 #else
 static struct at91_mmc_data __initdata mmc_data = {
 	.slot_b		= 0,
 	.wire4		= 1,
+	.det_pin	= -EINVAL,
+	.wp_pin		= -EINVAL,
+	.vcc_pin	= -EINVAL,
 };
 #endif
 
@@ -137,6 +143,8 @@ static struct at91_mmc_data __initdata mmc_data = {
  */
 static struct at91_usbh_data __initdata usbh_data = {
 	.ports		= 2,
+	.vbus_pin	= {-EINVAL, -EINVAL},
+	.overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
 
@@ -145,19 +153,19 @@ static struct at91_usbh_data __initdata usbh_data = {
  */
 static struct at91_udc_data __initdata portuxg20_udc_data = {
 	.vbus_pin	= AT91_PIN_PC7,
-	.pullup_pin	= 0,		/* pull-up driven by UDC */
+	.pullup_pin	= -EINVAL,		/* pull-up driven by UDC */
 };
 
 static struct at91_udc_data __initdata stamp9g20evb_udc_data = {
 	.vbus_pin	= AT91_PIN_PA22,
-	.pullup_pin	= 0,		/* pull-up driven by UDC */
+	.pullup_pin	= -EINVAL,		/* pull-up driven by UDC */
 };
 
 
 /*
  * MACB Ethernet device
  */
-static struct at91_eth_data __initdata macb_data = {
+static struct macb_platform_data __initdata macb_data = {
 	.phy_irq_pin	= AT91_PIN_PA28,
 	.is_rmii	= 1,
 };
diff --git a/arch/arm/mach-at91/board-usb-a926x.c b/arch/arm/mach-at91/board-usb-a926x.c
index 0a20bab21f99..26c36fc2d1e5 100644
--- a/arch/arm/mach-at91/board-usb-a926x.c
+++ b/arch/arm/mach-at91/board-usb-a926x.c
@@ -66,6 +66,8 @@ static void __init ek_init_early(void)
  */
 static struct at91_usbh_data __initdata ek_usbh_data = {
 	.ports		= 2,
+	.vbus_pin	= {-EINVAL, -EINVAL},
+	.overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
 /*
@@ -73,7 +75,7 @@ static struct at91_usbh_data __initdata ek_usbh_data = {
  */
 static struct at91_udc_data __initdata ek_udc_data = {
 	.vbus_pin	= AT91_PIN_PB11,
-	.pullup_pin	= 0,		/* pull-up driven by UDC */
+	.pullup_pin	= -EINVAL,		/* pull-up driven by UDC */
 };
 
 static void __init ek_add_device_udc(void)
@@ -146,7 +148,7 @@ static void __init ek_add_device_spi(void)
 /*
  * MACB Ethernet device
  */
-static struct at91_eth_data __initdata ek_macb_data = {
+static struct macb_platform_data __initdata ek_macb_data = {
 	.phy_irq_pin	= AT91_PIN_PE31,
 	.is_rmii	= 1,
 };
@@ -193,7 +195,7 @@ static struct mtd_partition __initdata ek_nand_partition[] = {
 static struct atmel_nand_data __initdata ek_nand_data = {
 	.ale		= 21,
 	.cle		= 22,
-//	.det_pin	= ... not connected
+	.det_pin	= -EINVAL,
 	.rdy_pin	= AT91_PIN_PA22,
 	.enable_pin	= AT91_PIN_PD15,
 	.parts		= ek_nand_partition,
@@ -245,9 +247,9 @@ static void __init ek_add_device_nand(void)
 
 	/* configure chip-select 3 (NAND) */
 	if (machine_is_usb_a9g20())
-		sam9_smc_configure(3, &usb_a9g20_nand_smc_config);
+		sam9_smc_configure(0, 3, &usb_a9g20_nand_smc_config);
 	else
-		sam9_smc_configure(3, &usb_a9260_nand_smc_config);
+		sam9_smc_configure(0, 3, &usb_a9260_nand_smc_config);
 
 	at91_add_device_nand(&ek_nand_data);
 }
@@ -344,7 +346,7 @@ static void __init ek_board_init(void)
 		/* I2C */
 		at91_add_device_i2c(NULL, 0);
 		/* shutdown controller, wakeup button (5 msec low) */
-		at91_sys_write(AT91_SHDW_MR, AT91_SHDW_CPTWK0_(10)
+		at91_shdwc_write(AT91_SHDW_MR, AT91_SHDW_CPTWK0_(10)
 				| AT91_SHDW_WKMODE0_LOW
 				| AT91_SHDW_RTTWKEN);
 	}
diff --git a/arch/arm/mach-at91/board-yl-9200.c b/arch/arm/mach-at91/board-yl-9200.c
index 12a3f955162b..bbd553e1cd93 100644
--- a/arch/arm/mach-at91/board-yl-9200.c
+++ b/arch/arm/mach-at91/board-yl-9200.c
@@ -110,7 +110,7 @@ static struct gpio_led yl9200_leds[] = {
 /*
  * Ethernet
  */
-static struct at91_eth_data __initdata yl9200_eth_data = {
+static struct macb_platform_data __initdata yl9200_eth_data = {
 	.phy_irq_pin		= AT91_PIN_PB28,
 	.is_rmii		= 1,
 };
@@ -120,6 +120,8 @@ static struct at91_eth_data __initdata yl9200_eth_data = {
  */
 static struct at91_usbh_data __initdata yl9200_usbh_data = {
 	.ports			= 1,	/* PQFP version of AT91RM9200 */
+	.vbus_pin		= {-EINVAL, -EINVAL},
+	.overcurrent_pin= {-EINVAL, -EINVAL},
 };
 
 /*
@@ -137,8 +139,9 @@ static struct at91_udc_data __initdata yl9200_udc_data = {
  */
 static struct at91_mmc_data __initdata yl9200_mmc_data = {
 	.det_pin	= AT91_PIN_PB9,
-	// .wp_pin	= ... not connected
 	.wire4		= 1,
+	.wp_pin		= -EINVAL,
+	.vcc_pin	= -EINVAL,
 };
 
 /*
@@ -175,7 +178,7 @@ static struct mtd_partition __initdata yl9200_nand_partition[] = {
 static struct atmel_nand_data __initdata yl9200_nand_data = {
 	.ale		= 6,
 	.cle		= 7,
-	// .det_pin	= ... not connected
+	.det_pin	= -EINVAL,
 	.rdy_pin	= AT91_PIN_PC14,	/* R/!B (Sheet10) */
 	.enable_pin	= AT91_PIN_PC15,	/* !CE  (Sheet10) */
 	.parts		= yl9200_nand_partition,
diff --git a/arch/arm/mach-at91/generic.h b/arch/arm/mach-at91/generic.h
index 7f4503bc4cbb..4866b8180d66 100644
--- a/arch/arm/mach-at91/generic.h
+++ b/arch/arm/mach-at91/generic.h
@@ -29,6 +29,7 @@ extern void __init at91_aic_init(unsigned int priority[]);
  /* Timer */
 struct sys_timer;
 extern struct sys_timer at91rm9200_timer;
+extern void at91sam926x_ioremap_pit(u32 addr);
 extern struct sys_timer at91sam926x_timer;
 extern struct sys_timer at91x40_timer;
 
@@ -59,14 +60,16 @@ extern void at91_irq_resume(void);
 /* reset */
 extern void at91sam9_alt_restart(char, const char *);
 
+/* shutdown */
+extern void at91_ioremap_shdwc(u32 base_addr);
+
  /* GPIO */
 #define AT91RM9200_PQFP		3	/* AT91RM9200 PQFP package has 3 banks */
 #define AT91RM9200_BGA		4	/* AT91RM9200 BGA package has 4 banks */
 
 struct at91_gpio_bank {
 	unsigned short id;		/* peripheral ID */
-	unsigned long offset;		/* offset from system peripheral base */
-	struct clk *clock;		/* associated clock */
+	unsigned long regbase;		/* offset from system peripheral base */
 };
 extern void __init at91_gpio_init(struct at91_gpio_bank *, int nr_banks);
 extern void __init at91_gpio_irq_setup(void);
diff --git a/arch/arm/mach-at91/gpio.c b/arch/arm/mach-at91/gpio.c
index 224e9e2f8674..74d6783eeabb 100644
--- a/arch/arm/mach-at91/gpio.c
+++ b/arch/arm/mach-at91/gpio.c
@@ -29,8 +29,9 @@
 struct at91_gpio_chip {
 	struct gpio_chip	chip;
 	struct at91_gpio_chip	*next;		/* Bank sharing same clock */
-	struct at91_gpio_bank	*bank;		/* Bank definition */
+	int			id;		/* ID of register bank */
 	void __iomem		*regbase;	/* Base of register bank */
+	struct clk		*clock;		/* associated clock */
 };
 
 #define to_at91_gpio_chip(c) container_of(c, struct at91_gpio_chip, chip)
@@ -58,18 +59,17 @@ static int at91_gpiolib_direction_input(struct gpio_chip *chip,
 	}
 
 static struct at91_gpio_chip gpio_chip[] = {
-	AT91_GPIO_CHIP("A", 0x00 + PIN_BASE, 32),
-	AT91_GPIO_CHIP("B", 0x20 + PIN_BASE, 32),
-	AT91_GPIO_CHIP("C", 0x40 + PIN_BASE, 32),
-	AT91_GPIO_CHIP("D", 0x60 + PIN_BASE, 32),
-	AT91_GPIO_CHIP("E", 0x80 + PIN_BASE, 32),
+	AT91_GPIO_CHIP("pioA", 0x00, 32),
+	AT91_GPIO_CHIP("pioB", 0x20, 32),
+	AT91_GPIO_CHIP("pioC", 0x40, 32),
+	AT91_GPIO_CHIP("pioD", 0x60, 32),
+	AT91_GPIO_CHIP("pioE", 0x80, 32),
 };
 
 static int gpio_banks;
 
 static inline void __iomem *pin_to_controller(unsigned pin)
 {
-	pin -= PIN_BASE;
 	pin /= 32;
 	if (likely(pin < gpio_banks))
 		return gpio_chip[pin].regbase;
@@ -79,7 +79,6 @@ static inline void __iomem *pin_to_controller(unsigned pin)
 
 static inline unsigned pin_to_mask(unsigned pin)
 {
-	pin -= PIN_BASE;
 	return 1 << (pin % 32);
 }
 
@@ -274,8 +273,9 @@ static u32 backups[MAX_GPIO_BANKS];
 
 static int gpio_irq_set_wake(struct irq_data *d, unsigned state)
 {
-	unsigned	mask = pin_to_mask(d->irq);
-	unsigned	bank = (d->irq - PIN_BASE) / 32;
+	unsigned	pin = irq_to_gpio(d->irq);
+	unsigned	mask = pin_to_mask(pin);
+	unsigned	bank = pin / 32;
 
 	if (unlikely(bank >= MAX_GPIO_BANKS))
 		return -EINVAL;
@@ -285,7 +285,7 @@ static int gpio_irq_set_wake(struct irq_data *d, unsigned state)
 	else
 		wakeups[bank] &= ~mask;
 
-	irq_set_irq_wake(gpio_chip[bank].bank->id, state);
+	irq_set_irq_wake(gpio_chip[bank].id, state);
 
 	return 0;
 }
@@ -302,7 +302,7 @@ void at91_gpio_suspend(void)
 		__raw_writel(wakeups[i], pio + PIO_IER);
 
 		if (!wakeups[i])
-			clk_disable(gpio_chip[i].bank->clock);
+			clk_disable(gpio_chip[i].clock);
 		else {
 #ifdef CONFIG_PM_DEBUG
 			printk(KERN_DEBUG "GPIO-%c may wake for %08x\n", 'A'+i, wakeups[i]);
@@ -319,7 +319,7 @@ void at91_gpio_resume(void)
 		void __iomem	*pio = gpio_chip[i].regbase;
 
 		if (!wakeups[i])
-			clk_enable(gpio_chip[i].bank->clock);
+			clk_enable(gpio_chip[i].clock);
 
 		__raw_writel(wakeups[i], pio + PIO_IDR);
 		__raw_writel(backups[i], pio + PIO_IER);
@@ -344,8 +344,9 @@ void at91_gpio_resume(void)
 
 static void gpio_irq_mask(struct irq_data *d)
 {
-	void __iomem	*pio = pin_to_controller(d->irq);
-	unsigned	mask = pin_to_mask(d->irq);
+	unsigned	pin = irq_to_gpio(d->irq);
+	void __iomem	*pio = pin_to_controller(pin);
+	unsigned	mask = pin_to_mask(pin);
 
 	if (pio)
 		__raw_writel(mask, pio + PIO_IDR);
@@ -353,8 +354,9 @@ static void gpio_irq_mask(struct irq_data *d)
 
 static void gpio_irq_unmask(struct irq_data *d)
 {
-	void __iomem	*pio = pin_to_controller(d->irq);
-	unsigned	mask = pin_to_mask(d->irq);
+	unsigned	pin = irq_to_gpio(d->irq);
+	void __iomem	*pio = pin_to_controller(pin);
+	unsigned	mask = pin_to_mask(pin);
 
 	if (pio)
 		__raw_writel(mask, pio + PIO_IER);
@@ -382,7 +384,7 @@ static struct irq_chip gpio_irqchip = {
 
 static void gpio_irq_handler(unsigned irq, struct irq_desc *desc)
 {
-	unsigned	pin;
+	unsigned	irq_pin;
 	struct irq_data *idata = irq_desc_get_irq_data(desc);
 	struct irq_chip *chip = irq_data_get_irq_chip(idata);
 	struct at91_gpio_chip *at91_gpio = irq_data_get_irq_chip_data(idata);
@@ -405,12 +407,12 @@ static void gpio_irq_handler(unsigned irq, struct irq_desc *desc)
 			continue;
 		}
 
-		pin = at91_gpio->chip.base;
+		irq_pin = gpio_to_irq(at91_gpio->chip.base);
 
 		while (isr) {
 			if (isr & 1)
-				generic_handle_irq(pin);
-			pin++;
+				generic_handle_irq(irq_pin);
+			irq_pin++;
 			isr >>= 1;
 		}
 	}
@@ -438,7 +440,7 @@ static int at91_gpio_show(struct seq_file *s, void *unused)
 		seq_printf(s, "%i:\t", j);
 
 		for (bank = 0; bank < gpio_banks; bank++) {
-			unsigned	pin  = PIN_BASE + (32 * bank) + j;
+			unsigned	pin  = (32 * bank) + j;
 			void __iomem	*pio = pin_to_controller(pin);
 			unsigned	mask = pin_to_mask(pin);
 
@@ -491,27 +493,28 @@ static struct lock_class_key gpio_lock_class;
  */
 void __init at91_gpio_irq_setup(void)
 {
-	unsigned		pioc, pin;
+	unsigned		pioc, irq = gpio_to_irq(0);
 	struct at91_gpio_chip	*this, *prev;
 
-	for (pioc = 0, pin = PIN_BASE, this = gpio_chip, prev = NULL;
+	for (pioc = 0, this = gpio_chip, prev = NULL;
 			pioc++ < gpio_banks;
 			prev = this, this++) {
-		unsigned	id = this->bank->id;
+		unsigned	id = this->id;
 		unsigned	i;
 
 		__raw_writel(~0, this->regbase + PIO_IDR);
 
-		for (i = 0, pin = this->chip.base; i < 32; i++, pin++) {
-			irq_set_lockdep_class(pin, &gpio_lock_class);
+		for (i = 0, irq = gpio_to_irq(this->chip.base); i < 32;
+		     i++, irq++) {
+			irq_set_lockdep_class(irq, &gpio_lock_class);
 
 			/*
 			 * Can use the "simple" and not "edge" handler since it's
 			 * shorter, and the AIC handles interrupts sanely.
 			 */
-			irq_set_chip_and_handler(pin, &gpio_irqchip,
+			irq_set_chip_and_handler(irq, &gpio_irqchip,
 						 handle_simple_irq);
-			set_irq_flags(pin, IRQF_VALID);
+			set_irq_flags(irq, IRQF_VALID);
 		}
 
 		/* The toplevel handler handles one bank of GPIOs, except
@@ -524,7 +527,7 @@ void __init at91_gpio_irq_setup(void)
 		irq_set_chip_data(id, this);
 		irq_set_chained_handler(id, gpio_irq_handler);
 	}
-	pr_info("AT91: %d gpio irqs in %d banks\n", pin - PIN_BASE, gpio_banks);
+	pr_info("AT91: %d gpio irqs in %d banks\n", irq - gpio_to_irq(0), gpio_banks);
 }
 
 /* gpiolib support */
@@ -612,16 +615,26 @@ void __init at91_gpio_init(struct at91_gpio_bank *data, int nr_banks)
 	for (i = 0; i < nr_banks; i++) {
 		at91_gpio = &gpio_chip[i];
 
-		at91_gpio->bank = &data[i];
-		at91_gpio->chip.base = PIN_BASE + i * 32;
-		at91_gpio->regbase = at91_gpio->bank->offset +
-			(void __iomem *)AT91_VA_BASE_SYS;
+		at91_gpio->id = data[i].id;
+		at91_gpio->chip.base = i * 32;
+
+		at91_gpio->regbase = ioremap(data[i].regbase, 512);
+		if (!at91_gpio->regbase) {
+			pr_err("at91_gpio.%d, failed to map registers, ignoring.\n", i);
+			continue;
+		}
+
+		at91_gpio->clock = clk_get_sys(NULL, at91_gpio->chip.label);
+		if (!at91_gpio->clock) {
+			pr_err("at91_gpio.%d, failed to get clock, ignoring.\n", i);
+			continue;
+		}
 
 		/* enable PIO controller's clock */
-		clk_enable(at91_gpio->bank->clock);
+		clk_enable(at91_gpio->clock);
 
 		/* AT91SAM9263_ID_PIOCDE groups PIOC, PIOD, PIOE */
-		if (last && last->bank->id == at91_gpio->bank->id)
+		if (last && last->id == at91_gpio->id)
 			last->next = at91_gpio;
 		last = at91_gpio;
 
diff --git a/arch/arm/mach-at91/include/mach/at91_aic.h b/arch/arm/mach-at91/include/mach/at91_aic.h
index 03566799d3be..3045781c473f 100644
--- a/arch/arm/mach-at91/include/mach/at91_aic.h
+++ b/arch/arm/mach-at91/include/mach/at91_aic.h
@@ -16,7 +16,19 @@
 #ifndef AT91_AIC_H
 #define AT91_AIC_H
 
-#define AT91_AIC_SMR(n)		(AT91_AIC + ((n) * 4))	/* Source Mode Registers 0-31 */
+#ifndef __ASSEMBLY__
+extern void __iomem *at91_aic_base;
+
+#define at91_aic_read(field) \
+	__raw_readl(at91_aic_base + field)
+
+#define at91_aic_write(field, value) \
+	__raw_writel(value, at91_aic_base + field);
+#else
+.extern at91_aic_base
+#endif
+
+#define AT91_AIC_SMR(n)		((n) * 4)		/* Source Mode Registers 0-31 */
 #define		AT91_AIC_PRIOR		(7 << 0)		/* Priority Level */
 #define		AT91_AIC_SRCTYPE	(3 << 5)		/* Interrupt Source Type */
 #define			AT91_AIC_SRCTYPE_LOW		(0 << 5)
@@ -24,30 +36,30 @@
 #define			AT91_AIC_SRCTYPE_HIGH		(2 << 5)
 #define			AT91_AIC_SRCTYPE_RISING		(3 << 5)
 
-#define AT91_AIC_SVR(n)		(AT91_AIC + 0x80 + ((n) * 4))	/* Source Vector Registers 0-31 */
-#define AT91_AIC_IVR		(AT91_AIC + 0x100)	/* Interrupt Vector Register */
-#define AT91_AIC_FVR		(AT91_AIC + 0x104)	/* Fast Interrupt Vector Register */
-#define AT91_AIC_ISR		(AT91_AIC + 0x108)	/* Interrupt Status Register */
+#define AT91_AIC_SVR(n)		(0x80 + ((n) * 4))	/* Source Vector Registers 0-31 */
+#define AT91_AIC_IVR		0x100			/* Interrupt Vector Register */
+#define AT91_AIC_FVR		0x104			/* Fast Interrupt Vector Register */
+#define AT91_AIC_ISR		0x108			/* Interrupt Status Register */
 #define		AT91_AIC_IRQID		(0x1f << 0)		/* Current Interrupt Identifier */
 
-#define AT91_AIC_IPR		(AT91_AIC + 0x10c)	/* Interrupt Pending Register */
-#define AT91_AIC_IMR		(AT91_AIC + 0x110)	/* Interrupt Mask Register */
-#define AT91_AIC_CISR		(AT91_AIC + 0x114)	/* Core Interrupt Status Register */
+#define AT91_AIC_IPR		0x10c			/* Interrupt Pending Register */
+#define AT91_AIC_IMR		0x110			/* Interrupt Mask Register */
+#define AT91_AIC_CISR		0x114			/* Core Interrupt Status Register */
 #define		AT91_AIC_NFIQ		(1 << 0)		/* nFIQ Status */
 #define		AT91_AIC_NIRQ		(1 << 1)		/* nIRQ Status */
 
-#define AT91_AIC_IECR		(AT91_AIC + 0x120)	/* Interrupt Enable Command Register */
-#define AT91_AIC_IDCR		(AT91_AIC + 0x124)	/* Interrupt Disable Command Register */
-#define AT91_AIC_ICCR		(AT91_AIC + 0x128)	/* Interrupt Clear Command Register */
-#define AT91_AIC_ISCR		(AT91_AIC + 0x12c)	/* Interrupt Set Command Register */
-#define AT91_AIC_EOICR		(AT91_AIC + 0x130)	/* End of Interrupt Command Register */
-#define AT91_AIC_SPU		(AT91_AIC + 0x134)	/* Spurious Interrupt Vector Register */
-#define AT91_AIC_DCR		(AT91_AIC + 0x138)	/* Debug Control Register */
+#define AT91_AIC_IECR		0x120			/* Interrupt Enable Command Register */
+#define AT91_AIC_IDCR		0x124			/* Interrupt Disable Command Register */
+#define AT91_AIC_ICCR		0x128			/* Interrupt Clear Command Register */
+#define AT91_AIC_ISCR		0x12c			/* Interrupt Set Command Register */
+#define AT91_AIC_EOICR		0x130			/* End of Interrupt Command Register */
+#define AT91_AIC_SPU		0x134			/* Spurious Interrupt Vector Register */
+#define AT91_AIC_DCR		0x138			/* Debug Control Register */
 #define		AT91_AIC_DCR_PROT	(1 << 0)		/* Protection Mode */
 #define		AT91_AIC_DCR_GMSK	(1 << 1)		/* General Mask */
 
-#define AT91_AIC_FFER		(AT91_AIC + 0x140)	/* Fast Forcing Enable Register [SAM9 only] */
-#define AT91_AIC_FFDR		(AT91_AIC + 0x144)	/* Fast Forcing Disable Register [SAM9 only] */
-#define AT91_AIC_FFSR		(AT91_AIC + 0x148)	/* Fast Forcing Status Register [SAM9 only] */
+#define AT91_AIC_FFER		0x140			/* Fast Forcing Enable Register [SAM9 only] */
+#define AT91_AIC_FFDR		0x144			/* Fast Forcing Disable Register [SAM9 only] */
+#define AT91_AIC_FFSR		0x148			/* Fast Forcing Status Register [SAM9 only] */
 
 #endif
diff --git a/arch/arm/mach-at91/include/mach/at91_dbgu.h b/arch/arm/mach-at91/include/mach/at91_dbgu.h
index dbfe455a4c41..2aa0c5e13495 100644
--- a/arch/arm/mach-at91/include/mach/at91_dbgu.h
+++ b/arch/arm/mach-at91/include/mach/at91_dbgu.h
@@ -19,7 +19,7 @@
 #define dbgu_readl(dbgu, field) \
 	__raw_readl(AT91_VA_BASE_SYS + dbgu + AT91_DBGU_ ## field)
 
-#ifdef AT91_DBGU
+#if !defined(CONFIG_ARCH_AT91X40)
 #define AT91_DBGU_CR		(0x00)	/* Control Register */
 #define AT91_DBGU_MR		(0x04)	/* Mode Register */
 #define AT91_DBGU_IER		(0x08)	/* Interrupt Enable Register */
diff --git a/arch/arm/mach-at91/include/mach/at91_pit.h b/arch/arm/mach-at91/include/mach/at91_pit.h
index 974d0bd05b5b..d1f80ad7f4d4 100644
--- a/arch/arm/mach-at91/include/mach/at91_pit.h
+++ b/arch/arm/mach-at91/include/mach/at91_pit.h
@@ -16,16 +16,16 @@
 #ifndef AT91_PIT_H
 #define AT91_PIT_H
 
-#define AT91_PIT_MR		(AT91_PIT + 0x00)	/* Mode Register */
+#define AT91_PIT_MR		0x00			/* Mode Register */
 #define		AT91_PIT_PITIEN		(1 << 25)		/* Timer Interrupt Enable */
 #define		AT91_PIT_PITEN		(1 << 24)		/* Timer Enabled */
 #define		AT91_PIT_PIV		(0xfffff)		/* Periodic Interval Value */
 
-#define AT91_PIT_SR		(AT91_PIT + 0x04)	/* Status Register */
+#define AT91_PIT_SR		0x04			/* Status Register */
 #define		AT91_PIT_PITS		(1 << 0)		/* Timer Status */
 
-#define AT91_PIT_PIVR		(AT91_PIT + 0x08)	/* Periodic Interval Value Register */
-#define AT91_PIT_PIIR		(AT91_PIT + 0x0c)	/* Periodic Interval Image Register */
+#define AT91_PIT_PIVR		0x08			/* Periodic Interval Value Register */
+#define AT91_PIT_PIIR		0x0c			/* Periodic Interval Image Register */
 #define		AT91_PIT_PICNT		(0xfff << 20)		/* Interval Counter */
 #define		AT91_PIT_CPIV		(0xfffff)		/* Inverval Value */
 
diff --git a/arch/arm/mach-at91/include/mach/at91_rtc.h b/arch/arm/mach-at91/include/mach/at91_rtc.h
index e56f4701a3e5..da1945e5f714 100644
--- a/arch/arm/mach-at91/include/mach/at91_rtc.h
+++ b/arch/arm/mach-at91/include/mach/at91_rtc.h
@@ -16,7 +16,7 @@
 #ifndef AT91_RTC_H
 #define AT91_RTC_H
 
-#define	AT91_RTC_CR		(AT91_RTC + 0x00)	/* Control Register */
+#define	AT91_RTC_CR		0x00			/* Control Register */
 #define		AT91_RTC_UPDTIM		(1 <<  0)		/* Update Request Time Register */
 #define		AT91_RTC_UPDCAL		(1 <<  1)		/* Update Request Calendar Register */
 #define		AT91_RTC_TIMEVSEL	(3 <<  8)		/* Time Event Selection */
@@ -29,44 +29,44 @@
 #define			AT91_RTC_CALEVSEL_MONTH		(1 << 16)
 #define			AT91_RTC_CALEVSEL_YEAR		(2 << 16)
 
-#define	AT91_RTC_MR		(AT91_RTC + 0x04)	/* Mode Register */
+#define	AT91_RTC_MR		0x04			/* Mode Register */
 #define			AT91_RTC_HRMOD		(1 <<  0)		/* 12/24 Hour Mode */
 
-#define	AT91_RTC_TIMR		(AT91_RTC + 0x08)	/* Time Register */
+#define	AT91_RTC_TIMR		0x08			/* Time Register */
 #define		AT91_RTC_SEC		(0x7f <<  0)		/* Current Second */
 #define		AT91_RTC_MIN		(0x7f <<  8)		/* Current Minute */
 #define		AT91_RTC_HOUR		(0x3f << 16)		/* Current Hour */
 #define		AT91_RTC_AMPM		(1    << 22)		/* Ante Meridiem Post Meridiem Indicator */
 
-#define	AT91_RTC_CALR		(AT91_RTC + 0x0c)	/* Calendar Register */
+#define	AT91_RTC_CALR		0x0c			/* Calendar Register */
 #define		AT91_RTC_CENT		(0x7f <<  0)		/* Current Century */
 #define		AT91_RTC_YEAR		(0xff <<  8)		/* Current Year */
 #define		AT91_RTC_MONTH		(0x1f << 16)		/* Current Month */
 #define		AT91_RTC_DAY		(7    << 21)		/* Current Day */
 #define		AT91_RTC_DATE		(0x3f << 24)		/* Current Date */
 
-#define	AT91_RTC_TIMALR		(AT91_RTC + 0x10)	/* Time Alarm Register */
+#define	AT91_RTC_TIMALR		0x10			/* Time Alarm Register */
 #define		AT91_RTC_SECEN		(1 <<  7)		/* Second Alarm Enable */
 #define		AT91_RTC_MINEN		(1 << 15)		/* Minute Alarm Enable */
 #define		AT91_RTC_HOUREN		(1 << 23)		/* Hour Alarm Enable */
 
-#define	AT91_RTC_CALALR		(AT91_RTC + 0x14)	/* Calendar Alarm Register */
+#define	AT91_RTC_CALALR		0x14			/* Calendar Alarm Register */
 #define		AT91_RTC_MTHEN		(1 << 23)		/* Month Alarm Enable */
 #define		AT91_RTC_DATEEN		(1 << 31)		/* Date Alarm Enable */
 
-#define	AT91_RTC_SR		(AT91_RTC + 0x18)	/* Status Register */
+#define	AT91_RTC_SR		0x18			/* Status Register */
 #define		AT91_RTC_ACKUPD		(1 <<  0)		/* Acknowledge for Update */
 #define		AT91_RTC_ALARM		(1 <<  1)		/* Alarm Flag */
 #define		AT91_RTC_SECEV		(1 <<  2)		/* Second Event */
 #define		AT91_RTC_TIMEV		(1 <<  3)		/* Time Event */
 #define		AT91_RTC_CALEV		(1 <<  4)		/* Calendar Event */
 
-#define	AT91_RTC_SCCR		(AT91_RTC + 0x1c)	/* Status Clear Command Register */
-#define	AT91_RTC_IER		(AT91_RTC + 0x20)	/* Interrupt Enable Register */
-#define	AT91_RTC_IDR		(AT91_RTC + 0x24)	/* Interrupt Disable Register */
-#define	AT91_RTC_IMR		(AT91_RTC + 0x28)	/* Interrupt Mask Register */
+#define	AT91_RTC_SCCR		0x1c			/* Status Clear Command Register */
+#define	AT91_RTC_IER		0x20			/* Interrupt Enable Register */
+#define	AT91_RTC_IDR		0x24			/* Interrupt Disable Register */
+#define	AT91_RTC_IMR		0x28			/* Interrupt Mask Register */
 
-#define	AT91_RTC_VER		(AT91_RTC + 0x2c)	/* Valid Entry Register */
+#define	AT91_RTC_VER		0x2c			/* Valid Entry Register */
 #define		AT91_RTC_NVTIM		(1 <<  0)		/* Non valid Time */
 #define		AT91_RTC_NVCAL		(1 <<  1)		/* Non valid Calendar */
 #define		AT91_RTC_NVTIMALR	(1 <<  2)		/* Non valid Time Alarm */
diff --git a/arch/arm/mach-at91/include/mach/at91_shdwc.h b/arch/arm/mach-at91/include/mach/at91_shdwc.h
index c4ce07e8a8fa..1d4fe822c77a 100644
--- a/arch/arm/mach-at91/include/mach/at91_shdwc.h
+++ b/arch/arm/mach-at91/include/mach/at91_shdwc.h
@@ -16,11 +16,21 @@
 #ifndef AT91_SHDWC_H
 #define AT91_SHDWC_H
 
-#define AT91_SHDW_CR		(AT91_SHDWC + 0x00)	/* Shut Down Control Register */
+#ifndef __ASSEMBLY__
+extern void __iomem *at91_shdwc_base;
+
+#define at91_shdwc_read(field) \
+	__raw_readl(at91_shdwc_base + field)
+
+#define at91_shdwc_write(field, value) \
+	__raw_writel(value, at91_shdwc_base + field);
+#endif
+
+#define AT91_SHDW_CR		0x00			/* Shut Down Control Register */
 #define		AT91_SHDW_SHDW		(1    << 0)		/* Shut Down command */
 #define		AT91_SHDW_KEY		(0xa5 << 24)		/* KEY Password */
 
-#define AT91_SHDW_MR		(AT91_SHDWC + 0x04)	/* Shut Down Mode Register */
+#define AT91_SHDW_MR		0x04			/* Shut Down Mode Register */
 #define		AT91_SHDW_WKMODE0	(3 << 0)		/* Wake-up 0 Mode Selection */
 #define			AT91_SHDW_WKMODE0_NONE		0
 #define			AT91_SHDW_WKMODE0_HIGH		1
@@ -30,7 +40,7 @@
 #define			AT91_SHDW_CPTWK0_(x)	((x) << 4)
 #define		AT91_SHDW_RTTWKEN	(1   << 16)		/* Real Time Timer Wake-up Enable */
 
-#define AT91_SHDW_SR		(AT91_SHDWC + 0x08)	/* Shut Down Status Register */
+#define AT91_SHDW_SR		0x08			/* Shut Down Status Register */
 #define		AT91_SHDW_WAKEUP0	(1 <<  0)		/* Wake-up 0 Status */
 #define		AT91_SHDW_RTTWK		(1 << 16)		/* Real-time Timer Wake-up */
 #define		AT91_SHDW_RTCWK		(1 << 17)		/* Real-time Clock Wake-up [SAM9RL] */
diff --git a/arch/arm/mach-at91/include/mach/at91cap9.h b/arch/arm/mach-at91/include/mach/at91cap9.h
index c5df1e8f1955..4c0e2f6011d7 100644
--- a/arch/arm/mach-at91/include/mach/at91cap9.h
+++ b/arch/arm/mach-at91/include/mach/at91cap9.h
@@ -79,29 +79,28 @@
 /*
  * System Peripherals (offset from AT91_BASE_SYS)
  */
-#define AT91_ECC	(0xffffe200 - AT91_BASE_SYS)
 #define AT91_BCRAMC	(0xffffe400 - AT91_BASE_SYS)
 #define AT91_DDRSDRC0	(0xffffe600 - AT91_BASE_SYS)
-#define AT91_SMC	(0xffffe800 - AT91_BASE_SYS)
 #define AT91_MATRIX	(0xffffea00 - AT91_BASE_SYS)
-#define AT91_CCFG	(0xffffeb10 - AT91_BASE_SYS)
-#define AT91_DMA	(0xffffec00 - AT91_BASE_SYS)
-#define AT91_DBGU	(0xffffee00 - AT91_BASE_SYS)
-#define AT91_AIC	(0xfffff000 - AT91_BASE_SYS)
-#define AT91_PIOA	(0xfffff200 - AT91_BASE_SYS)
-#define AT91_PIOB	(0xfffff400 - AT91_BASE_SYS)
-#define AT91_PIOC	(0xfffff600 - AT91_BASE_SYS)
-#define AT91_PIOD	(0xfffff800 - AT91_BASE_SYS)
 #define AT91_PMC	(0xfffffc00 - AT91_BASE_SYS)
 #define AT91_RSTC	(0xfffffd00 - AT91_BASE_SYS)
-#define AT91_SHDWC	(0xfffffd10 - AT91_BASE_SYS)
-#define AT91_RTT	(0xfffffd20 - AT91_BASE_SYS)
-#define AT91_PIT	(0xfffffd30 - AT91_BASE_SYS)
-#define AT91_WDT	(0xfffffd40 - AT91_BASE_SYS)
 #define AT91_GPBR	(cpu_is_at91cap9_revB() ?	\
 			(0xfffffd50 - AT91_BASE_SYS) :	\
 			(0xfffffd60 - AT91_BASE_SYS))
 
+#define AT91CAP9_BASE_ECC	0xffffe200
+#define AT91CAP9_BASE_DMA	0xffffec00
+#define AT91CAP9_BASE_SMC	0xffffe800
+#define AT91CAP9_BASE_DBGU	AT91_BASE_DBGU1
+#define AT91CAP9_BASE_PIOA	0xfffff200
+#define AT91CAP9_BASE_PIOB	0xfffff400
+#define AT91CAP9_BASE_PIOC	0xfffff600
+#define AT91CAP9_BASE_PIOD	0xfffff800
+#define AT91CAP9_BASE_SHDWC	0xfffffd10
+#define AT91CAP9_BASE_RTT	0xfffffd20
+#define AT91CAP9_BASE_PIT	0xfffffd30
+#define AT91CAP9_BASE_WDT	0xfffffd40
+
 #define AT91_USART0	AT91CAP9_BASE_US0
 #define AT91_USART1	AT91CAP9_BASE_US1
 #define AT91_USART2	AT91CAP9_BASE_US2
diff --git a/arch/arm/mach-at91/include/mach/at91rm9200.h b/arch/arm/mach-at91/include/mach/at91rm9200.h
index e4037b500302..bacb51141819 100644
--- a/arch/arm/mach-at91/include/mach/at91rm9200.h
+++ b/arch/arm/mach-at91/include/mach/at91rm9200.h
@@ -79,17 +79,17 @@
 /*
  * System Peripherals (offset from AT91_BASE_SYS)
  */
-#define AT91_AIC	(0xfffff000 - AT91_BASE_SYS)	/* Advanced Interrupt Controller */
-#define AT91_DBGU	(0xfffff200 - AT91_BASE_SYS)	/* Debug Unit */
-#define AT91_PIOA	(0xfffff400 - AT91_BASE_SYS)	/* PIO Controller A */
-#define AT91_PIOB	(0xfffff600 - AT91_BASE_SYS)	/* PIO Controller B */
-#define AT91_PIOC	(0xfffff800 - AT91_BASE_SYS)	/* PIO Controller C */
-#define AT91_PIOD	(0xfffffa00 - AT91_BASE_SYS)	/* PIO Controller D */
 #define AT91_PMC	(0xfffffc00 - AT91_BASE_SYS)	/* Power Management Controller */
 #define AT91_ST		(0xfffffd00 - AT91_BASE_SYS)	/* System Timer */
-#define AT91_RTC	(0xfffffe00 - AT91_BASE_SYS)	/* Real-Time Clock */
 #define AT91_MC		(0xffffff00 - AT91_BASE_SYS)	/* Memory Controllers */
 
+#define AT91RM9200_BASE_DBGU	AT91_BASE_DBGU0	/* Debug Unit */
+#define AT91RM9200_BASE_PIOA	0xfffff400	/* PIO Controller A */
+#define AT91RM9200_BASE_PIOB	0xfffff600	/* PIO Controller B */
+#define AT91RM9200_BASE_PIOC	0xfffff800	/* PIO Controller C */
+#define AT91RM9200_BASE_PIOD	0xfffffa00	/* PIO Controller D */
+#define AT91RM9200_BASE_RTC	0xfffffe00	/* Real-Time Clock */
+
 #define AT91_USART0	AT91RM9200_BASE_US0
 #define AT91_USART1	AT91RM9200_BASE_US1
 #define AT91_USART2	AT91RM9200_BASE_US2
diff --git a/arch/arm/mach-at91/include/mach/at91sam9260.h b/arch/arm/mach-at91/include/mach/at91sam9260.h
index 9a791165913f..f937c476bb67 100644
--- a/arch/arm/mach-at91/include/mach/at91sam9260.h
+++ b/arch/arm/mach-at91/include/mach/at91sam9260.h
@@ -80,24 +80,23 @@
 /*
  * System Peripherals (offset from AT91_BASE_SYS)
  */
-#define AT91_ECC	(0xffffe800 - AT91_BASE_SYS)
 #define AT91_SDRAMC0	(0xffffea00 - AT91_BASE_SYS)
-#define AT91_SMC	(0xffffec00 - AT91_BASE_SYS)
 #define AT91_MATRIX	(0xffffee00 - AT91_BASE_SYS)
-#define AT91_CCFG	(0xffffef10 - AT91_BASE_SYS)
-#define AT91_AIC	(0xfffff000 - AT91_BASE_SYS)
-#define AT91_DBGU	(0xfffff200 - AT91_BASE_SYS)
-#define AT91_PIOA	(0xfffff400 - AT91_BASE_SYS)
-#define AT91_PIOB	(0xfffff600 - AT91_BASE_SYS)
-#define AT91_PIOC	(0xfffff800 - AT91_BASE_SYS)
 #define AT91_PMC	(0xfffffc00 - AT91_BASE_SYS)
 #define AT91_RSTC	(0xfffffd00 - AT91_BASE_SYS)
-#define AT91_SHDWC	(0xfffffd10 - AT91_BASE_SYS)
-#define AT91_RTT	(0xfffffd20 - AT91_BASE_SYS)
-#define AT91_PIT	(0xfffffd30 - AT91_BASE_SYS)
-#define AT91_WDT	(0xfffffd40 - AT91_BASE_SYS)
 #define AT91_GPBR	(0xfffffd50 - AT91_BASE_SYS)
 
+#define AT91SAM9260_BASE_ECC	0xffffe800
+#define AT91SAM9260_BASE_SMC	0xffffec00
+#define AT91SAM9260_BASE_DBGU	AT91_BASE_DBGU0
+#define AT91SAM9260_BASE_PIOA	0xfffff400
+#define AT91SAM9260_BASE_PIOB	0xfffff600
+#define AT91SAM9260_BASE_PIOC	0xfffff800
+#define AT91SAM9260_BASE_SHDWC	0xfffffd10
+#define AT91SAM9260_BASE_RTT	0xfffffd20
+#define AT91SAM9260_BASE_PIT	0xfffffd30
+#define AT91SAM9260_BASE_WDT	0xfffffd40
+
 #define AT91_USART0	AT91SAM9260_BASE_US0
 #define AT91_USART1	AT91SAM9260_BASE_US1
 #define AT91_USART2	AT91SAM9260_BASE_US2
diff --git a/arch/arm/mach-at91/include/mach/at91sam9261.h b/arch/arm/mach-at91/include/mach/at91sam9261.h
index ce596204cefa..175604e261be 100644
--- a/arch/arm/mach-at91/include/mach/at91sam9261.h
+++ b/arch/arm/mach-at91/include/mach/at91sam9261.h
@@ -66,21 +66,21 @@
  * System Peripherals (offset from AT91_BASE_SYS)
  */
 #define AT91_SDRAMC0	(0xffffea00 - AT91_BASE_SYS)
-#define AT91_SMC	(0xffffec00 - AT91_BASE_SYS)
 #define AT91_MATRIX	(0xffffee00 - AT91_BASE_SYS)
-#define AT91_AIC	(0xfffff000 - AT91_BASE_SYS)
-#define AT91_DBGU	(0xfffff200 - AT91_BASE_SYS)
-#define AT91_PIOA	(0xfffff400 - AT91_BASE_SYS)
-#define AT91_PIOB	(0xfffff600 - AT91_BASE_SYS)
-#define AT91_PIOC	(0xfffff800 - AT91_BASE_SYS)
 #define AT91_PMC	(0xfffffc00 - AT91_BASE_SYS)
 #define AT91_RSTC	(0xfffffd00 - AT91_BASE_SYS)
-#define AT91_SHDWC	(0xfffffd10 - AT91_BASE_SYS)
-#define AT91_RTT	(0xfffffd20 - AT91_BASE_SYS)
-#define AT91_PIT	(0xfffffd30 - AT91_BASE_SYS)
-#define AT91_WDT	(0xfffffd40 - AT91_BASE_SYS)
 #define AT91_GPBR	(0xfffffd50 - AT91_BASE_SYS)
 
+#define AT91SAM9261_BASE_SMC	0xffffec00
+#define AT91SAM9261_BASE_DBGU	AT91_BASE_DBGU0
+#define AT91SAM9261_BASE_PIOA	0xfffff400
+#define AT91SAM9261_BASE_PIOB	0xfffff600
+#define AT91SAM9261_BASE_PIOC	0xfffff800
+#define AT91SAM9261_BASE_SHDWC	0xfffffd10
+#define AT91SAM9261_BASE_RTT	0xfffffd20
+#define AT91SAM9261_BASE_PIT	0xfffffd30
+#define AT91SAM9261_BASE_WDT	0xfffffd40
+
 #define AT91_USART0	AT91SAM9261_BASE_US0
 #define AT91_USART1	AT91SAM9261_BASE_US1
 #define AT91_USART2	AT91SAM9261_BASE_US2
diff --git a/arch/arm/mach-at91/include/mach/at91sam9263.h b/arch/arm/mach-at91/include/mach/at91sam9263.h
index f1b92961a2b1..80c915002d83 100644
--- a/arch/arm/mach-at91/include/mach/at91sam9263.h
+++ b/arch/arm/mach-at91/include/mach/at91sam9263.h
@@ -74,30 +74,29 @@
 /*
  * System Peripherals (offset from AT91_BASE_SYS)
  */
-#define AT91_ECC0	(0xffffe000 - AT91_BASE_SYS)
 #define AT91_SDRAMC0	(0xffffe200 - AT91_BASE_SYS)
-#define AT91_SMC0	(0xffffe400 - AT91_BASE_SYS)
-#define AT91_ECC1	(0xffffe600 - AT91_BASE_SYS)
 #define AT91_SDRAMC1	(0xffffe800 - AT91_BASE_SYS)
-#define AT91_SMC1	(0xffffea00 - AT91_BASE_SYS)
 #define AT91_MATRIX	(0xffffec00 - AT91_BASE_SYS)
-#define AT91_CCFG	(0xffffed10 - AT91_BASE_SYS)
-#define AT91_DBGU	(0xffffee00 - AT91_BASE_SYS)
-#define AT91_AIC	(0xfffff000 - AT91_BASE_SYS)
-#define AT91_PIOA	(0xfffff200 - AT91_BASE_SYS)
-#define AT91_PIOB	(0xfffff400 - AT91_BASE_SYS)
-#define AT91_PIOC	(0xfffff600 - AT91_BASE_SYS)
-#define AT91_PIOD	(0xfffff800 - AT91_BASE_SYS)
-#define AT91_PIOE	(0xfffffa00 - AT91_BASE_SYS)
 #define AT91_PMC	(0xfffffc00 - AT91_BASE_SYS)
 #define AT91_RSTC	(0xfffffd00 - AT91_BASE_SYS)
-#define AT91_SHDWC	(0xfffffd10 - AT91_BASE_SYS)
-#define AT91_RTT0	(0xfffffd20 - AT91_BASE_SYS)
-#define AT91_PIT	(0xfffffd30 - AT91_BASE_SYS)
-#define AT91_WDT	(0xfffffd40 - AT91_BASE_SYS)
-#define AT91_RTT1	(0xfffffd50 - AT91_BASE_SYS)
 #define AT91_GPBR	(0xfffffd60 - AT91_BASE_SYS)
 
+#define AT91SAM9263_BASE_ECC0	0xffffe000
+#define AT91SAM9263_BASE_SMC0	0xffffe400
+#define AT91SAM9263_BASE_ECC1	0xffffe600
+#define AT91SAM9263_BASE_SMC1	0xffffea00
+#define AT91SAM9263_BASE_DBGU	AT91_BASE_DBGU1
+#define AT91SAM9263_BASE_PIOA	0xfffff200
+#define AT91SAM9263_BASE_PIOB	0xfffff400
+#define AT91SAM9263_BASE_PIOC	0xfffff600
+#define AT91SAM9263_BASE_PIOD	0xfffff800
+#define AT91SAM9263_BASE_PIOE	0xfffffa00
+#define AT91SAM9263_BASE_SHDWC	0xfffffd10
+#define AT91SAM9263_BASE_RTT0	0xfffffd20
+#define AT91SAM9263_BASE_PIT	0xfffffd30
+#define AT91SAM9263_BASE_WDT	0xfffffd40
+#define AT91SAM9263_BASE_RTT1	0xfffffd50
+
 #define AT91_USART0	AT91SAM9263_BASE_US0
 #define AT91_USART1	AT91SAM9263_BASE_US1
 #define AT91_USART2	AT91SAM9263_BASE_US2
diff --git a/arch/arm/mach-at91/include/mach/at91sam9_smc.h b/arch/arm/mach-at91/include/mach/at91sam9_smc.h
index 57de6207e57e..eb18a70fa647 100644
--- a/arch/arm/mach-at91/include/mach/at91sam9_smc.h
+++ b/arch/arm/mach-at91/include/mach/at91sam9_smc.h
@@ -16,7 +16,9 @@
 #ifndef AT91SAM9_SMC_H
 #define AT91SAM9_SMC_H
 
-#define AT91_SMC_SETUP(n)	(AT91_SMC + 0x00 + ((n)*0x10))	/* Setup Register for CS n */
+#include <mach/cpu.h>
+
+#define AT91_SMC_SETUP		0x00				/* Setup Register for CS n */
 #define		AT91_SMC_NWESETUP	(0x3f << 0)			/* NWE Setup Length */
 #define			AT91_SMC_NWESETUP_(x)	((x) << 0)
 #define		AT91_SMC_NCS_WRSETUP	(0x3f << 8)			/* NCS Setup Length in Write Access */
@@ -26,7 +28,7 @@
 #define		AT91_SMC_NCS_RDSETUP	(0x3f << 24)			/* NCS Setup Length in Read Access */
 #define			AT91_SMC_NCS_RDSETUP_(x)	((x) << 24)
 
-#define AT91_SMC_PULSE(n)	(AT91_SMC + 0x04 + ((n)*0x10))	/* Pulse Register for CS n */
+#define AT91_SMC_PULSE		0x04				/* Pulse Register for CS n */
 #define		AT91_SMC_NWEPULSE	(0x7f <<  0)			/* NWE Pulse Length */
 #define			AT91_SMC_NWEPULSE_(x)	((x) << 0)
 #define		AT91_SMC_NCS_WRPULSE	(0x7f <<  8)			/* NCS Pulse Length in Write Access */
@@ -36,13 +38,13 @@
 #define		AT91_SMC_NCS_RDPULSE	(0x7f << 24)			/* NCS Pulse Length in Read Access */
 #define			AT91_SMC_NCS_RDPULSE_(x)((x) << 24)
 
-#define AT91_SMC_CYCLE(n)	(AT91_SMC + 0x08 + ((n)*0x10))	/* Cycle Register for CS n */
+#define AT91_SMC_CYCLE		0x08				/* Cycle Register for CS n */
 #define		AT91_SMC_NWECYCLE	(0x1ff << 0 )			/* Total Write Cycle Length */
 #define			AT91_SMC_NWECYCLE_(x)	((x) << 0)
 #define		AT91_SMC_NRDCYCLE	(0x1ff << 16)			/* Total Read Cycle Length */
 #define			AT91_SMC_NRDCYCLE_(x)	((x) << 16)
 
-#define AT91_SMC_MODE(n)	(AT91_SMC + 0x0c + ((n)*0x10))	/* Mode Register for CS n */
+#define AT91_SMC_MODE		0x0c				/* Mode Register for CS n */
 #define		AT91_SMC_READMODE	(1 <<  0)			/* Read Mode */
 #define		AT91_SMC_WRITEMODE	(1 <<  1)			/* Write Mode */
 #define		AT91_SMC_EXNWMODE	(3 <<  4)			/* NWAIT Mode */
@@ -66,11 +68,4 @@
 #define			AT91_SMC_PS_16			(2 << 28)
 #define			AT91_SMC_PS_32			(3 << 28)
 
-#if defined(AT91_SMC1)		/* The AT91SAM9263 has 2 Static Memory contollers */
-#define AT91_SMC1_SETUP(n)	(AT91_SMC1 + 0x00 + ((n)*0x10))	/* Setup Register for CS n */
-#define AT91_SMC1_PULSE(n)	(AT91_SMC1 + 0x04 + ((n)*0x10))	/* Pulse Register for CS n */
-#define AT91_SMC1_CYCLE(n)	(AT91_SMC1 + 0x08 + ((n)*0x10))	/* Cycle Register for CS n */
-#define AT91_SMC1_MODE(n)	(AT91_SMC1 + 0x0c + ((n)*0x10))	/* Mode Register for CS n */
-#endif
-
 #endif
diff --git a/arch/arm/mach-at91/include/mach/at91sam9g45.h b/arch/arm/mach-at91/include/mach/at91sam9g45.h
index 406bb6496805..f0c23c960dec 100644
--- a/arch/arm/mach-at91/include/mach/at91sam9g45.h
+++ b/arch/arm/mach-at91/include/mach/at91sam9g45.h
@@ -86,27 +86,27 @@
 /*
  * System Peripherals (offset from AT91_BASE_SYS)
  */
-#define AT91_ECC	(0xffffe200 - AT91_BASE_SYS)
 #define AT91_DDRSDRC1	(0xffffe400 - AT91_BASE_SYS)
 #define AT91_DDRSDRC0	(0xffffe600 - AT91_BASE_SYS)
-#define AT91_SMC	(0xffffe800 - AT91_BASE_SYS)
 #define AT91_MATRIX	(0xffffea00 - AT91_BASE_SYS)
-#define AT91_DMA	(0xffffec00 - AT91_BASE_SYS)
-#define AT91_DBGU	(0xffffee00 - AT91_BASE_SYS)
-#define AT91_AIC	(0xfffff000 - AT91_BASE_SYS)
-#define AT91_PIOA	(0xfffff200 - AT91_BASE_SYS)
-#define AT91_PIOB	(0xfffff400 - AT91_BASE_SYS)
-#define AT91_PIOC	(0xfffff600 - AT91_BASE_SYS)
-#define AT91_PIOD	(0xfffff800 - AT91_BASE_SYS)
-#define AT91_PIOE	(0xfffffa00 - AT91_BASE_SYS)
 #define AT91_PMC	(0xfffffc00 - AT91_BASE_SYS)
 #define AT91_RSTC	(0xfffffd00 - AT91_BASE_SYS)
-#define AT91_SHDWC	(0xfffffd10 - AT91_BASE_SYS)
-#define AT91_RTT	(0xfffffd20 - AT91_BASE_SYS)
-#define AT91_PIT	(0xfffffd30 - AT91_BASE_SYS)
-#define AT91_WDT	(0xfffffd40 - AT91_BASE_SYS)
 #define AT91_GPBR	(0xfffffd60 - AT91_BASE_SYS)
-#define AT91_RTC	(0xfffffdb0 - AT91_BASE_SYS)
+
+#define AT91SAM9G45_BASE_ECC	0xffffe200
+#define AT91SAM9G45_BASE_DMA	0xffffec00
+#define AT91SAM9G45_BASE_SMC	0xffffe800
+#define AT91SAM9G45_BASE_DBGU	AT91_BASE_DBGU1
+#define AT91SAM9G45_BASE_PIOA	0xfffff200
+#define AT91SAM9G45_BASE_PIOB	0xfffff400
+#define AT91SAM9G45_BASE_PIOC	0xfffff600
+#define AT91SAM9G45_BASE_PIOD	0xfffff800
+#define AT91SAM9G45_BASE_PIOE	0xfffffa00
+#define AT91SAM9G45_BASE_SHDWC	0xfffffd10
+#define AT91SAM9G45_BASE_RTT	0xfffffd20
+#define AT91SAM9G45_BASE_PIT	0xfffffd30
+#define AT91SAM9G45_BASE_WDT	0xfffffd40
+#define AT91SAM9G45_BASE_RTC	0xfffffdb0
 
 #define AT91_USART0	AT91SAM9G45_BASE_US0
 #define AT91_USART1	AT91SAM9G45_BASE_US1
diff --git a/arch/arm/mach-at91/include/mach/at91sam9rl.h b/arch/arm/mach-at91/include/mach/at91sam9rl.h
index 1aabacd315d4..2bb359e60b97 100644
--- a/arch/arm/mach-at91/include/mach/at91sam9rl.h
+++ b/arch/arm/mach-at91/include/mach/at91sam9rl.h
@@ -69,27 +69,26 @@
 /*
  * System Peripherals (offset from AT91_BASE_SYS)
  */
-#define AT91_DMA	(0xffffe600 - AT91_BASE_SYS)
-#define AT91_ECC	(0xffffe800 - AT91_BASE_SYS)
 #define AT91_SDRAMC0	(0xffffea00 - AT91_BASE_SYS)
-#define AT91_SMC	(0xffffec00 - AT91_BASE_SYS)
 #define AT91_MATRIX	(0xffffee00 - AT91_BASE_SYS)
-#define AT91_CCFG	(0xffffef10 - AT91_BASE_SYS)
-#define AT91_AIC	(0xfffff000 - AT91_BASE_SYS)
-#define AT91_DBGU	(0xfffff200 - AT91_BASE_SYS)
-#define AT91_PIOA	(0xfffff400 - AT91_BASE_SYS)
-#define AT91_PIOB	(0xfffff600 - AT91_BASE_SYS)
-#define AT91_PIOC	(0xfffff800 - AT91_BASE_SYS)
-#define AT91_PIOD	(0xfffffa00 - AT91_BASE_SYS)
 #define AT91_PMC	(0xfffffc00 - AT91_BASE_SYS)
 #define AT91_RSTC	(0xfffffd00 - AT91_BASE_SYS)
-#define AT91_SHDWC	(0xfffffd10 - AT91_BASE_SYS)
-#define AT91_RTT	(0xfffffd20 - AT91_BASE_SYS)
-#define AT91_PIT	(0xfffffd30 - AT91_BASE_SYS)
-#define AT91_WDT	(0xfffffd40 - AT91_BASE_SYS)
 #define AT91_SCKCR	(0xfffffd50 - AT91_BASE_SYS)
 #define AT91_GPBR	(0xfffffd60 - AT91_BASE_SYS)
-#define AT91_RTC	(0xfffffe00 - AT91_BASE_SYS)
+
+#define AT91SAM9RL_BASE_DMA	0xffffe600
+#define AT91SAM9RL_BASE_ECC	0xffffe800
+#define AT91SAM9RL_BASE_SMC	0xffffec00
+#define AT91SAM9RL_BASE_DBGU	AT91_BASE_DBGU0
+#define AT91SAM9RL_BASE_PIOA	0xfffff400
+#define AT91SAM9RL_BASE_PIOB	0xfffff600
+#define AT91SAM9RL_BASE_PIOC	0xfffff800
+#define AT91SAM9RL_BASE_PIOD	0xfffffa00
+#define AT91SAM9RL_BASE_SHDWC	0xfffffd10
+#define AT91SAM9RL_BASE_RTT	0xfffffd20
+#define AT91SAM9RL_BASE_PIT	0xfffffd30
+#define AT91SAM9RL_BASE_WDT	0xfffffd40
+#define AT91SAM9RL_BASE_RTC	0xfffffe00
 
 #define AT91_USART0	AT91SAM9RL_BASE_US0
 #define AT91_USART1	AT91SAM9RL_BASE_US1
diff --git a/arch/arm/mach-at91/include/mach/at91x40.h b/arch/arm/mach-at91/include/mach/at91x40.h
index a152ff87e688..a57829f4fd18 100644
--- a/arch/arm/mach-at91/include/mach/at91x40.h
+++ b/arch/arm/mach-at91/include/mach/at91x40.h
@@ -40,7 +40,6 @@
 #define AT91_PIOA	(0xffff0000 - AT91_BASE_SYS)	/* PIO Controller A */
 #define AT91_PS		(0xffff4000 - AT91_BASE_SYS)	/* Power Save */
 #define AT91_WD		(0xffff8000 - AT91_BASE_SYS)	/* Watchdog Timer */
-#define AT91_AIC	(0xfffff000 - AT91_BASE_SYS)	/* Advanced Interrupt Controller */
 
 /*
  * The AT91x40 series doesn't have a debug unit like the other AT91 parts.
diff --git a/arch/arm/mach-at91/include/mach/board.h b/arch/arm/mach-at91/include/mach/board.h
index eac92e995bb5..d0b377b21bd7 100644
--- a/arch/arm/mach-at91/include/mach/board.h
+++ b/arch/arm/mach-at91/include/mach/board.h
@@ -40,13 +40,14 @@
 #include <linux/atmel-mci.h>
 #include <sound/atmel-ac97c.h>
 #include <linux/serial.h>
+#include <linux/platform_data/macb.h>
 
  /* USB Device */
 struct at91_udc_data {
-	u8	vbus_pin;		/* high == host powering us */
+	int	vbus_pin;		/* high == host powering us */
 	u8	vbus_active_low;	/* vbus polarity */
 	u8	vbus_polled;		/* Use polling, not interrupt */
-	u8	pullup_pin;		/* active == D+ pulled up */
+	int	pullup_pin;		/* active == D+ pulled up */
 	u8	pullup_active_low;	/* true == pullup_pin is active low */
 };
 extern void __init at91_add_device_udc(struct at91_udc_data *data);
@@ -56,10 +57,10 @@ extern void __init at91_add_device_usba(struct usba_platform_data *data);
 
  /* Compact Flash */
 struct at91_cf_data {
-	u8	irq_pin;		/* I/O IRQ */
-	u8	det_pin;		/* Card detect */
-	u8	vcc_pin;		/* power switching */
-	u8	rst_pin;		/* card reset */
+	int	irq_pin;		/* I/O IRQ */
+	int	det_pin;		/* Card detect */
+	int	vcc_pin;		/* power switching */
+	int	rst_pin;		/* card reset */
 	u8	chipselect;		/* EBI Chip Select number */
 	u8	flags;
 #define AT91_CF_TRUE_IDE	0x01
@@ -70,37 +71,26 @@ extern void __init at91_add_device_cf(struct at91_cf_data *data);
  /* MMC / SD */
   /* at91_mci platform config */
 struct at91_mmc_data {
-	u8		det_pin;	/* card detect IRQ */
+	int		det_pin;	/* card detect IRQ */
 	unsigned	slot_b:1;	/* uses Slot B */
 	unsigned	wire4:1;	/* (SD) supports DAT0..DAT3 */
-	u8		wp_pin;		/* (SD) writeprotect detect */
-	u8		vcc_pin;	/* power switching (high == on) */
+	int		wp_pin;		/* (SD) writeprotect detect */
+	int		vcc_pin;	/* power switching (high == on) */
 };
 extern void __init at91_add_device_mmc(short mmc_id, struct at91_mmc_data *data);
 
   /* atmel-mci platform config */
 extern void __init at91_add_device_mci(short mmc_id, struct mci_platform_data *data);
 
- /* Ethernet (EMAC & MACB) */
-struct at91_eth_data {
-	u32		phy_mask;
-	u8		phy_irq_pin;	/* PHY IRQ */
-	u8		is_rmii;	/* using RMII interface? */
-};
-extern void __init at91_add_device_eth(struct at91_eth_data *data);
-
-#if defined(CONFIG_ARCH_AT91SAM9260) || defined(CONFIG_ARCH_AT91SAM9263) || defined(CONFIG_ARCH_AT91SAM9G20) || defined(CONFIG_ARCH_AT91CAP9) \
-	|| defined(CONFIG_ARCH_AT91SAM9G45)
-#define eth_platform_data	at91_eth_data
-#endif
+extern void __init at91_add_device_eth(struct macb_platform_data *data);
 
  /* USB Host */
 struct at91_usbh_data {
 	u8		ports;		/* number of ports on root hub */
-	u8		vbus_pin[2];	/* port power-control pin */
+	int		vbus_pin[2];	/* port power-control pin */
 	u8              vbus_pin_inverted;
 	u8              overcurrent_supported;
-	u8              overcurrent_pin[2];
+	int             overcurrent_pin[2];
 	u8              overcurrent_status[2];
 	u8              overcurrent_changed[2];
 };
@@ -110,9 +100,9 @@ extern void __init at91_add_device_usbh_ehci(struct at91_usbh_data *data);
 
  /* NAND / SmartMedia */
 struct atmel_nand_data {
-	u8		enable_pin;	/* chip enable */
-	u8		det_pin;	/* card detect */
-	u8		rdy_pin;	/* ready/busy */
+	int		enable_pin;	/* chip enable */
+	int		det_pin;	/* card detect */
+	int		rdy_pin;	/* ready/busy */
 	u8              rdy_pin_active_low;     /* rdy_pin value is inverted */
 	u8		ale;		/* address line number connected to ALE */
 	u8		cle;		/* address line number connected to CLE */
diff --git a/arch/arm/mach-at91/include/mach/debug-macro.S b/arch/arm/mach-at91/include/mach/debug-macro.S
index 0ed8648c6452..c6bb9e2d9baa 100644
--- a/arch/arm/mach-at91/include/mach/debug-macro.S
+++ b/arch/arm/mach-at91/include/mach/debug-macro.S
@@ -14,9 +14,15 @@
 #include <mach/hardware.h>
 #include <mach/at91_dbgu.h>
 
+#if defined(CONFIG_AT91_DEBUG_LL_DBGU0)
+#define AT91_DBGU AT91_BASE_DBGU0
+#else
+#define AT91_DBGU AT91_BASE_DBGU1
+#endif
+
 	.macro	addruart, rp, rv, tmp
-	ldr	\rp, =(AT91_BASE_SYS + AT91_DBGU)	@ System peripherals (phys address)
-	ldr	\rv, =(AT91_VA_BASE_SYS	+ AT91_DBGU)	@ System peripherals (virt address)
+	ldr	\rp, =AT91_DBGU				@ System peripherals (phys address)
+	ldr	\rv, =AT91_IO_P2V(AT91_DBGU)		@ System peripherals (virt address)
 	.endm
 
 	.macro	senduart,rd,rx
diff --git a/arch/arm/mach-at91/include/mach/entry-macro.S b/arch/arm/mach-at91/include/mach/entry-macro.S
index 7ab68f972227..423eea0ed74c 100644
--- a/arch/arm/mach-at91/include/mach/entry-macro.S
+++ b/arch/arm/mach-at91/include/mach/entry-macro.S
@@ -17,16 +17,17 @@
 	.endm
 
 	.macro  get_irqnr_preamble, base, tmp
-	ldr	\base, =(AT91_VA_BASE_SYS + AT91_AIC)		@ base virtual address of AIC peripheral
+	ldr	\base, =at91_aic_base		@ base virtual address of AIC peripheral
+	ldr	\base, [\base]
 	.endm
 
 	.macro  arch_ret_to_user, tmp1, tmp2
 	.endm
 
 	.macro	get_irqnr_and_base, irqnr, irqstat, base, tmp
-	ldr	\irqnr, [\base, #(AT91_AIC_IVR - AT91_AIC)]	@ read IRQ vector register: de-asserts nIRQ to processor (and clears interrupt)
-	ldr	\irqstat, [\base, #(AT91_AIC_ISR - AT91_AIC)]	@ read interrupt source number
-	teq	\irqstat, #0					@ ISR is 0 when no current interrupt, or spurious interrupt
-	streq	\tmp, [\base, #(AT91_AIC_EOICR - AT91_AIC)]	@ not going to be handled further, then ACK it now.
+	ldr	\irqnr, [\base, #AT91_AIC_IVR]		@ read IRQ vector register: de-asserts nIRQ to processor (and clears interrupt)
+	ldr	\irqstat, [\base, #AT91_AIC_ISR]	@ read interrupt source number
+	teq	\irqstat, #0				@ ISR is 0 when no current interrupt, or spurious interrupt
+	streq	\tmp, [\base, #AT91_AIC_EOICR]		@ not going to be handled further, then ACK it now.
 	.endm
 
diff --git a/arch/arm/mach-at91/include/mach/gpio.h b/arch/arm/mach-at91/include/mach/gpio.h
index 2b9a1f51210f..e3fd225121c7 100644
--- a/arch/arm/mach-at91/include/mach/gpio.h
+++ b/arch/arm/mach-at91/include/mach/gpio.h
@@ -16,177 +16,175 @@
 #include <linux/kernel.h>
 #include <asm/irq.h>
 
-#define PIN_BASE		NR_AIC_IRQS
-
 #define MAX_GPIO_BANKS		5
-#define NR_BUILTIN_GPIO		(PIN_BASE + (MAX_GPIO_BANKS * 32))
+#define NR_BUILTIN_GPIO		(MAX_GPIO_BANKS * 32)
 
 /* these pin numbers double as IRQ numbers, like AT91xxx_ID_* values */
 
-#define	AT91_PIN_PA0	(PIN_BASE + 0x00 + 0)
-#define	AT91_PIN_PA1	(PIN_BASE + 0x00 + 1)
-#define	AT91_PIN_PA2	(PIN_BASE + 0x00 + 2)
-#define	AT91_PIN_PA3	(PIN_BASE + 0x00 + 3)
-#define	AT91_PIN_PA4	(PIN_BASE + 0x00 + 4)
-#define	AT91_PIN_PA5	(PIN_BASE + 0x00 + 5)
-#define	AT91_PIN_PA6	(PIN_BASE + 0x00 + 6)
-#define	AT91_PIN_PA7	(PIN_BASE + 0x00 + 7)
-#define	AT91_PIN_PA8	(PIN_BASE + 0x00 + 8)
-#define	AT91_PIN_PA9	(PIN_BASE + 0x00 + 9)
-#define	AT91_PIN_PA10	(PIN_BASE + 0x00 + 10)
-#define	AT91_PIN_PA11	(PIN_BASE + 0x00 + 11)
-#define	AT91_PIN_PA12	(PIN_BASE + 0x00 + 12)
-#define	AT91_PIN_PA13	(PIN_BASE + 0x00 + 13)
-#define	AT91_PIN_PA14	(PIN_BASE + 0x00 + 14)
-#define	AT91_PIN_PA15	(PIN_BASE + 0x00 + 15)
-#define	AT91_PIN_PA16	(PIN_BASE + 0x00 + 16)
-#define	AT91_PIN_PA17	(PIN_BASE + 0x00 + 17)
-#define	AT91_PIN_PA18	(PIN_BASE + 0x00 + 18)
-#define	AT91_PIN_PA19	(PIN_BASE + 0x00 + 19)
-#define	AT91_PIN_PA20	(PIN_BASE + 0x00 + 20)
-#define	AT91_PIN_PA21	(PIN_BASE + 0x00 + 21)
-#define	AT91_PIN_PA22	(PIN_BASE + 0x00 + 22)
-#define	AT91_PIN_PA23	(PIN_BASE + 0x00 + 23)
-#define	AT91_PIN_PA24	(PIN_BASE + 0x00 + 24)
-#define	AT91_PIN_PA25	(PIN_BASE + 0x00 + 25)
-#define	AT91_PIN_PA26	(PIN_BASE + 0x00 + 26)
-#define	AT91_PIN_PA27	(PIN_BASE + 0x00 + 27)
-#define	AT91_PIN_PA28	(PIN_BASE + 0x00 + 28)
-#define	AT91_PIN_PA29	(PIN_BASE + 0x00 + 29)
-#define	AT91_PIN_PA30	(PIN_BASE + 0x00 + 30)
-#define	AT91_PIN_PA31	(PIN_BASE + 0x00 + 31)
-
-#define	AT91_PIN_PB0	(PIN_BASE + 0x20 + 0)
-#define	AT91_PIN_PB1	(PIN_BASE + 0x20 + 1)
-#define	AT91_PIN_PB2	(PIN_BASE + 0x20 + 2)
-#define	AT91_PIN_PB3	(PIN_BASE + 0x20 + 3)
-#define	AT91_PIN_PB4	(PIN_BASE + 0x20 + 4)
-#define	AT91_PIN_PB5	(PIN_BASE + 0x20 + 5)
-#define	AT91_PIN_PB6	(PIN_BASE + 0x20 + 6)
-#define	AT91_PIN_PB7	(PIN_BASE + 0x20 + 7)
-#define	AT91_PIN_PB8	(PIN_BASE + 0x20 + 8)
-#define	AT91_PIN_PB9	(PIN_BASE + 0x20 + 9)
-#define	AT91_PIN_PB10	(PIN_BASE + 0x20 + 10)
-#define	AT91_PIN_PB11	(PIN_BASE + 0x20 + 11)
-#define	AT91_PIN_PB12	(PIN_BASE + 0x20 + 12)
-#define	AT91_PIN_PB13	(PIN_BASE + 0x20 + 13)
-#define	AT91_PIN_PB14	(PIN_BASE + 0x20 + 14)
-#define	AT91_PIN_PB15	(PIN_BASE + 0x20 + 15)
-#define	AT91_PIN_PB16	(PIN_BASE + 0x20 + 16)
-#define	AT91_PIN_PB17	(PIN_BASE + 0x20 + 17)
-#define	AT91_PIN_PB18	(PIN_BASE + 0x20 + 18)
-#define	AT91_PIN_PB19	(PIN_BASE + 0x20 + 19)
-#define	AT91_PIN_PB20	(PIN_BASE + 0x20 + 20)
-#define	AT91_PIN_PB21	(PIN_BASE + 0x20 + 21)
-#define	AT91_PIN_PB22	(PIN_BASE + 0x20 + 22)
-#define	AT91_PIN_PB23	(PIN_BASE + 0x20 + 23)
-#define	AT91_PIN_PB24	(PIN_BASE + 0x20 + 24)
-#define	AT91_PIN_PB25	(PIN_BASE + 0x20 + 25)
-#define	AT91_PIN_PB26	(PIN_BASE + 0x20 + 26)
-#define	AT91_PIN_PB27	(PIN_BASE + 0x20 + 27)
-#define	AT91_PIN_PB28	(PIN_BASE + 0x20 + 28)
-#define	AT91_PIN_PB29	(PIN_BASE + 0x20 + 29)
-#define	AT91_PIN_PB30	(PIN_BASE + 0x20 + 30)
-#define	AT91_PIN_PB31	(PIN_BASE + 0x20 + 31)
-
-#define	AT91_PIN_PC0	(PIN_BASE + 0x40 + 0)
-#define	AT91_PIN_PC1	(PIN_BASE + 0x40 + 1)
-#define	AT91_PIN_PC2	(PIN_BASE + 0x40 + 2)
-#define	AT91_PIN_PC3	(PIN_BASE + 0x40 + 3)
-#define	AT91_PIN_PC4	(PIN_BASE + 0x40 + 4)
-#define	AT91_PIN_PC5	(PIN_BASE + 0x40 + 5)
-#define	AT91_PIN_PC6	(PIN_BASE + 0x40 + 6)
-#define	AT91_PIN_PC7	(PIN_BASE + 0x40 + 7)
-#define	AT91_PIN_PC8	(PIN_BASE + 0x40 + 8)
-#define	AT91_PIN_PC9	(PIN_BASE + 0x40 + 9)
-#define	AT91_PIN_PC10	(PIN_BASE + 0x40 + 10)
-#define	AT91_PIN_PC11	(PIN_BASE + 0x40 + 11)
-#define	AT91_PIN_PC12	(PIN_BASE + 0x40 + 12)
-#define	AT91_PIN_PC13	(PIN_BASE + 0x40 + 13)
-#define	AT91_PIN_PC14	(PIN_BASE + 0x40 + 14)
-#define	AT91_PIN_PC15	(PIN_BASE + 0x40 + 15)
-#define	AT91_PIN_PC16	(PIN_BASE + 0x40 + 16)
-#define	AT91_PIN_PC17	(PIN_BASE + 0x40 + 17)
-#define	AT91_PIN_PC18	(PIN_BASE + 0x40 + 18)
-#define	AT91_PIN_PC19	(PIN_BASE + 0x40 + 19)
-#define	AT91_PIN_PC20	(PIN_BASE + 0x40 + 20)
-#define	AT91_PIN_PC21	(PIN_BASE + 0x40 + 21)
-#define	AT91_PIN_PC22	(PIN_BASE + 0x40 + 22)
-#define	AT91_PIN_PC23	(PIN_BASE + 0x40 + 23)
-#define	AT91_PIN_PC24	(PIN_BASE + 0x40 + 24)
-#define	AT91_PIN_PC25	(PIN_BASE + 0x40 + 25)
-#define	AT91_PIN_PC26	(PIN_BASE + 0x40 + 26)
-#define	AT91_PIN_PC27	(PIN_BASE + 0x40 + 27)
-#define	AT91_PIN_PC28	(PIN_BASE + 0x40 + 28)
-#define	AT91_PIN_PC29	(PIN_BASE + 0x40 + 29)
-#define	AT91_PIN_PC30	(PIN_BASE + 0x40 + 30)
-#define	AT91_PIN_PC31	(PIN_BASE + 0x40 + 31)
-
-#define	AT91_PIN_PD0	(PIN_BASE + 0x60 + 0)
-#define	AT91_PIN_PD1	(PIN_BASE + 0x60 + 1)
-#define	AT91_PIN_PD2	(PIN_BASE + 0x60 + 2)
-#define	AT91_PIN_PD3	(PIN_BASE + 0x60 + 3)
-#define	AT91_PIN_PD4	(PIN_BASE + 0x60 + 4)
-#define	AT91_PIN_PD5	(PIN_BASE + 0x60 + 5)
-#define	AT91_PIN_PD6	(PIN_BASE + 0x60 + 6)
-#define	AT91_PIN_PD7	(PIN_BASE + 0x60 + 7)
-#define	AT91_PIN_PD8	(PIN_BASE + 0x60 + 8)
-#define	AT91_PIN_PD9	(PIN_BASE + 0x60 + 9)
-#define	AT91_PIN_PD10	(PIN_BASE + 0x60 + 10)
-#define	AT91_PIN_PD11	(PIN_BASE + 0x60 + 11)
-#define	AT91_PIN_PD12	(PIN_BASE + 0x60 + 12)
-#define	AT91_PIN_PD13	(PIN_BASE + 0x60 + 13)
-#define	AT91_PIN_PD14	(PIN_BASE + 0x60 + 14)
-#define	AT91_PIN_PD15	(PIN_BASE + 0x60 + 15)
-#define	AT91_PIN_PD16	(PIN_BASE + 0x60 + 16)
-#define	AT91_PIN_PD17	(PIN_BASE + 0x60 + 17)
-#define	AT91_PIN_PD18	(PIN_BASE + 0x60 + 18)
-#define	AT91_PIN_PD19	(PIN_BASE + 0x60 + 19)
-#define	AT91_PIN_PD20	(PIN_BASE + 0x60 + 20)
-#define	AT91_PIN_PD21	(PIN_BASE + 0x60 + 21)
-#define	AT91_PIN_PD22	(PIN_BASE + 0x60 + 22)
-#define	AT91_PIN_PD23	(PIN_BASE + 0x60 + 23)
-#define	AT91_PIN_PD24	(PIN_BASE + 0x60 + 24)
-#define	AT91_PIN_PD25	(PIN_BASE + 0x60 + 25)
-#define	AT91_PIN_PD26	(PIN_BASE + 0x60 + 26)
-#define	AT91_PIN_PD27	(PIN_BASE + 0x60 + 27)
-#define	AT91_PIN_PD28	(PIN_BASE + 0x60 + 28)
-#define	AT91_PIN_PD29	(PIN_BASE + 0x60 + 29)
-#define	AT91_PIN_PD30	(PIN_BASE + 0x60 + 30)
-#define	AT91_PIN_PD31	(PIN_BASE + 0x60 + 31)
-
-#define	AT91_PIN_PE0	(PIN_BASE + 0x80 + 0)
-#define	AT91_PIN_PE1	(PIN_BASE + 0x80 + 1)
-#define	AT91_PIN_PE2	(PIN_BASE + 0x80 + 2)
-#define	AT91_PIN_PE3	(PIN_BASE + 0x80 + 3)
-#define	AT91_PIN_PE4	(PIN_BASE + 0x80 + 4)
-#define	AT91_PIN_PE5	(PIN_BASE + 0x80 + 5)
-#define	AT91_PIN_PE6	(PIN_BASE + 0x80 + 6)
-#define	AT91_PIN_PE7	(PIN_BASE + 0x80 + 7)
-#define	AT91_PIN_PE8	(PIN_BASE + 0x80 + 8)
-#define	AT91_PIN_PE9	(PIN_BASE + 0x80 + 9)
-#define	AT91_PIN_PE10	(PIN_BASE + 0x80 + 10)
-#define	AT91_PIN_PE11	(PIN_BASE + 0x80 + 11)
-#define	AT91_PIN_PE12	(PIN_BASE + 0x80 + 12)
-#define	AT91_PIN_PE13	(PIN_BASE + 0x80 + 13)
-#define	AT91_PIN_PE14	(PIN_BASE + 0x80 + 14)
-#define	AT91_PIN_PE15	(PIN_BASE + 0x80 + 15)
-#define	AT91_PIN_PE16	(PIN_BASE + 0x80 + 16)
-#define	AT91_PIN_PE17	(PIN_BASE + 0x80 + 17)
-#define	AT91_PIN_PE18	(PIN_BASE + 0x80 + 18)
-#define	AT91_PIN_PE19	(PIN_BASE + 0x80 + 19)
-#define	AT91_PIN_PE20	(PIN_BASE + 0x80 + 20)
-#define	AT91_PIN_PE21	(PIN_BASE + 0x80 + 21)
-#define	AT91_PIN_PE22	(PIN_BASE + 0x80 + 22)
-#define	AT91_PIN_PE23	(PIN_BASE + 0x80 + 23)
-#define	AT91_PIN_PE24	(PIN_BASE + 0x80 + 24)
-#define	AT91_PIN_PE25	(PIN_BASE + 0x80 + 25)
-#define	AT91_PIN_PE26	(PIN_BASE + 0x80 + 26)
-#define	AT91_PIN_PE27	(PIN_BASE + 0x80 + 27)
-#define	AT91_PIN_PE28	(PIN_BASE + 0x80 + 28)
-#define	AT91_PIN_PE29	(PIN_BASE + 0x80 + 29)
-#define	AT91_PIN_PE30	(PIN_BASE + 0x80 + 30)
-#define	AT91_PIN_PE31	(PIN_BASE + 0x80 + 31)
+#define	AT91_PIN_PA0	(0x00 + 0)
+#define	AT91_PIN_PA1	(0x00 + 1)
+#define	AT91_PIN_PA2	(0x00 + 2)
+#define	AT91_PIN_PA3	(0x00 + 3)
+#define	AT91_PIN_PA4	(0x00 + 4)
+#define	AT91_PIN_PA5	(0x00 + 5)
+#define	AT91_PIN_PA6	(0x00 + 6)
+#define	AT91_PIN_PA7	(0x00 + 7)
+#define	AT91_PIN_PA8	(0x00 + 8)
+#define	AT91_PIN_PA9	(0x00 + 9)
+#define	AT91_PIN_PA10	(0x00 + 10)
+#define	AT91_PIN_PA11	(0x00 + 11)
+#define	AT91_PIN_PA12	(0x00 + 12)
+#define	AT91_PIN_PA13	(0x00 + 13)
+#define	AT91_PIN_PA14	(0x00 + 14)
+#define	AT91_PIN_PA15	(0x00 + 15)
+#define	AT91_PIN_PA16	(0x00 + 16)
+#define	AT91_PIN_PA17	(0x00 + 17)
+#define	AT91_PIN_PA18	(0x00 + 18)
+#define	AT91_PIN_PA19	(0x00 + 19)
+#define	AT91_PIN_PA20	(0x00 + 20)
+#define	AT91_PIN_PA21	(0x00 + 21)
+#define	AT91_PIN_PA22	(0x00 + 22)
+#define	AT91_PIN_PA23	(0x00 + 23)
+#define	AT91_PIN_PA24	(0x00 + 24)
+#define	AT91_PIN_PA25	(0x00 + 25)
+#define	AT91_PIN_PA26	(0x00 + 26)
+#define	AT91_PIN_PA27	(0x00 + 27)
+#define	AT91_PIN_PA28	(0x00 + 28)
+#define	AT91_PIN_PA29	(0x00 + 29)
+#define	AT91_PIN_PA30	(0x00 + 30)
+#define	AT91_PIN_PA31	(0x00 + 31)
+
+#define	AT91_PIN_PB0	(0x20 + 0)
+#define	AT91_PIN_PB1	(0x20 + 1)
+#define	AT91_PIN_PB2	(0x20 + 2)
+#define	AT91_PIN_PB3	(0x20 + 3)
+#define	AT91_PIN_PB4	(0x20 + 4)
+#define	AT91_PIN_PB5	(0x20 + 5)
+#define	AT91_PIN_PB6	(0x20 + 6)
+#define	AT91_PIN_PB7	(0x20 + 7)
+#define	AT91_PIN_PB8	(0x20 + 8)
+#define	AT91_PIN_PB9	(0x20 + 9)
+#define	AT91_PIN_PB10	(0x20 + 10)
+#define	AT91_PIN_PB11	(0x20 + 11)
+#define	AT91_PIN_PB12	(0x20 + 12)
+#define	AT91_PIN_PB13	(0x20 + 13)
+#define	AT91_PIN_PB14	(0x20 + 14)
+#define	AT91_PIN_PB15	(0x20 + 15)
+#define	AT91_PIN_PB16	(0x20 + 16)
+#define	AT91_PIN_PB17	(0x20 + 17)
+#define	AT91_PIN_PB18	(0x20 + 18)
+#define	AT91_PIN_PB19	(0x20 + 19)
+#define	AT91_PIN_PB20	(0x20 + 20)
+#define	AT91_PIN_PB21	(0x20 + 21)
+#define	AT91_PIN_PB22	(0x20 + 22)
+#define	AT91_PIN_PB23	(0x20 + 23)
+#define	AT91_PIN_PB24	(0x20 + 24)
+#define	AT91_PIN_PB25	(0x20 + 25)
+#define	AT91_PIN_PB26	(0x20 + 26)
+#define	AT91_PIN_PB27	(0x20 + 27)
+#define	AT91_PIN_PB28	(0x20 + 28)
+#define	AT91_PIN_PB29	(0x20 + 29)
+#define	AT91_PIN_PB30	(0x20 + 30)
+#define	AT91_PIN_PB31	(0x20 + 31)
+
+#define	AT91_PIN_PC0	(0x40 + 0)
+#define	AT91_PIN_PC1	(0x40 + 1)
+#define	AT91_PIN_PC2	(0x40 + 2)
+#define	AT91_PIN_PC3	(0x40 + 3)
+#define	AT91_PIN_PC4	(0x40 + 4)
+#define	AT91_PIN_PC5	(0x40 + 5)
+#define	AT91_PIN_PC6	(0x40 + 6)
+#define	AT91_PIN_PC7	(0x40 + 7)
+#define	AT91_PIN_PC8	(0x40 + 8)
+#define	AT91_PIN_PC9	(0x40 + 9)
+#define	AT91_PIN_PC10	(0x40 + 10)
+#define	AT91_PIN_PC11	(0x40 + 11)
+#define	AT91_PIN_PC12	(0x40 + 12)
+#define	AT91_PIN_PC13	(0x40 + 13)
+#define	AT91_PIN_PC14	(0x40 + 14)
+#define	AT91_PIN_PC15	(0x40 + 15)
+#define	AT91_PIN_PC16	(0x40 + 16)
+#define	AT91_PIN_PC17	(0x40 + 17)
+#define	AT91_PIN_PC18	(0x40 + 18)
+#define	AT91_PIN_PC19	(0x40 + 19)
+#define	AT91_PIN_PC20	(0x40 + 20)
+#define	AT91_PIN_PC21	(0x40 + 21)
+#define	AT91_PIN_PC22	(0x40 + 22)
+#define	AT91_PIN_PC23	(0x40 + 23)
+#define	AT91_PIN_PC24	(0x40 + 24)
+#define	AT91_PIN_PC25	(0x40 + 25)
+#define	AT91_PIN_PC26	(0x40 + 26)
+#define	AT91_PIN_PC27	(0x40 + 27)
+#define	AT91_PIN_PC28	(0x40 + 28)
+#define	AT91_PIN_PC29	(0x40 + 29)
+#define	AT91_PIN_PC30	(0x40 + 30)
+#define	AT91_PIN_PC31	(0x40 + 31)
+
+#define	AT91_PIN_PD0	(0x60 + 0)
+#define	AT91_PIN_PD1	(0x60 + 1)
+#define	AT91_PIN_PD2	(0x60 + 2)
+#define	AT91_PIN_PD3	(0x60 + 3)
+#define	AT91_PIN_PD4	(0x60 + 4)
+#define	AT91_PIN_PD5	(0x60 + 5)
+#define	AT91_PIN_PD6	(0x60 + 6)
+#define	AT91_PIN_PD7	(0x60 + 7)
+#define	AT91_PIN_PD8	(0x60 + 8)
+#define	AT91_PIN_PD9	(0x60 + 9)
+#define	AT91_PIN_PD10	(0x60 + 10)
+#define	AT91_PIN_PD11	(0x60 + 11)
+#define	AT91_PIN_PD12	(0x60 + 12)
+#define	AT91_PIN_PD13	(0x60 + 13)
+#define	AT91_PIN_PD14	(0x60 + 14)
+#define	AT91_PIN_PD15	(0x60 + 15)
+#define	AT91_PIN_PD16	(0x60 + 16)
+#define	AT91_PIN_PD17	(0x60 + 17)
+#define	AT91_PIN_PD18	(0x60 + 18)
+#define	AT91_PIN_PD19	(0x60 + 19)
+#define	AT91_PIN_PD20	(0x60 + 20)
+#define	AT91_PIN_PD21	(0x60 + 21)
+#define	AT91_PIN_PD22	(0x60 + 22)
+#define	AT91_PIN_PD23	(0x60 + 23)
+#define	AT91_PIN_PD24	(0x60 + 24)
+#define	AT91_PIN_PD25	(0x60 + 25)
+#define	AT91_PIN_PD26	(0x60 + 26)
+#define	AT91_PIN_PD27	(0x60 + 27)
+#define	AT91_PIN_PD28	(0x60 + 28)
+#define	AT91_PIN_PD29	(0x60 + 29)
+#define	AT91_PIN_PD30	(0x60 + 30)
+#define	AT91_PIN_PD31	(0x60 + 31)
+
+#define	AT91_PIN_PE0	(0x80 + 0)
+#define	AT91_PIN_PE1	(0x80 + 1)
+#define	AT91_PIN_PE2	(0x80 + 2)
+#define	AT91_PIN_PE3	(0x80 + 3)
+#define	AT91_PIN_PE4	(0x80 + 4)
+#define	AT91_PIN_PE5	(0x80 + 5)
+#define	AT91_PIN_PE6	(0x80 + 6)
+#define	AT91_PIN_PE7	(0x80 + 7)
+#define	AT91_PIN_PE8	(0x80 + 8)
+#define	AT91_PIN_PE9	(0x80 + 9)
+#define	AT91_PIN_PE10	(0x80 + 10)
+#define	AT91_PIN_PE11	(0x80 + 11)
+#define	AT91_PIN_PE12	(0x80 + 12)
+#define	AT91_PIN_PE13	(0x80 + 13)
+#define	AT91_PIN_PE14	(0x80 + 14)
+#define	AT91_PIN_PE15	(0x80 + 15)
+#define	AT91_PIN_PE16	(0x80 + 16)
+#define	AT91_PIN_PE17	(0x80 + 17)
+#define	AT91_PIN_PE18	(0x80 + 18)
+#define	AT91_PIN_PE19	(0x80 + 19)
+#define	AT91_PIN_PE20	(0x80 + 20)
+#define	AT91_PIN_PE21	(0x80 + 21)
+#define	AT91_PIN_PE22	(0x80 + 22)
+#define	AT91_PIN_PE23	(0x80 + 23)
+#define	AT91_PIN_PE24	(0x80 + 24)
+#define	AT91_PIN_PE25	(0x80 + 25)
+#define	AT91_PIN_PE26	(0x80 + 26)
+#define	AT91_PIN_PE27	(0x80 + 27)
+#define	AT91_PIN_PE28	(0x80 + 28)
+#define	AT91_PIN_PE29	(0x80 + 29)
+#define	AT91_PIN_PE30	(0x80 + 30)
+#define	AT91_PIN_PE31	(0x80 + 31)
 
 #ifndef __ASSEMBLY__
 /* setup setup routines, called from board init or driver probe() */
@@ -215,8 +213,8 @@ extern void at91_gpio_resume(void);
 
 #include <asm/errno.h>
 
-#define gpio_to_irq(gpio) (gpio)
-#define irq_to_gpio(irq)  (irq)
+#define gpio_to_irq(gpio) (gpio + NR_AIC_IRQS)
+#define irq_to_gpio(irq)  (irq - NR_AIC_IRQS)
 
 #endif	/* __ASSEMBLY__ */
 
diff --git a/arch/arm/mach-at91/include/mach/hardware.h b/arch/arm/mach-at91/include/mach/hardware.h
index 483478d8be6b..2d0e4e998566 100644
--- a/arch/arm/mach-at91/include/mach/hardware.h
+++ b/arch/arm/mach-at91/include/mach/hardware.h
@@ -16,6 +16,12 @@
 
 #include <asm/sizes.h>
 
+/* DBGU base */
+/* rm9200, 9260/9g20, 9261/9g10, 9rl */
+#define AT91_BASE_DBGU0	0xfffff200
+/* 9263, 9g45, cap9 */
+#define AT91_BASE_DBGU1	0xffffee00
+
 #if defined(CONFIG_ARCH_AT91RM9200)
 #include <mach/at91rm9200.h>
 #elif defined(CONFIG_ARCH_AT91SAM9260) || defined(CONFIG_ARCH_AT91SAM9G20)
@@ -52,6 +58,12 @@
 #endif
 
 /*
+ * On all at91 have the Advanced Interrupt Controller starts at address
+ * 0xfffff000
+ */
+#define AT91_AIC	0xfffff000
+
+/*
  * Peripheral identifiers/interrupts.
  */
 #define AT91_ID_FIQ		0	/* Advanced Interrupt Controller (FIQ) */
diff --git a/arch/arm/mach-at91/include/mach/irqs.h b/arch/arm/mach-at91/include/mach/irqs.h
index 36bd55f3fc6e..ac8b7dfc85ef 100644
--- a/arch/arm/mach-at91/include/mach/irqs.h
+++ b/arch/arm/mach-at91/include/mach/irqs.h
@@ -31,7 +31,7 @@
  * Acknowledge interrupt with AIC after interrupt has been handled.
  *   (by kernel/irq.c)
  */
-#define irq_finish(irq) do { at91_sys_write(AT91_AIC_EOICR, 0); } while (0)
+#define irq_finish(irq) do { at91_aic_write(AT91_AIC_EOICR, 0); } while (0)
 
 
 /*
diff --git a/arch/arm/mach-at91/include/mach/timex.h b/arch/arm/mach-at91/include/mach/timex.h
index 85820ad801cc..5e917a66edd7 100644
--- a/arch/arm/mach-at91/include/mach/timex.h
+++ b/arch/arm/mach-at91/include/mach/timex.h
@@ -23,70 +23,15 @@
 
 #include <mach/hardware.h>
 
-#if defined(CONFIG_ARCH_AT91RM9200)
+#ifdef CONFIG_ARCH_AT91X40
 
-#define CLOCK_TICK_RATE		(AT91_SLOW_CLOCK)
-
-#elif defined(CONFIG_ARCH_AT91SAM9260)
-
-#if defined(CONFIG_MACH_USB_A9260) || defined(CONFIG_MACH_QIL_A9260)
-#define AT91SAM9_MASTER_CLOCK	90000000
-#else
-#define AT91SAM9_MASTER_CLOCK	99300000
-#endif
-
-#define CLOCK_TICK_RATE		(AT91SAM9_MASTER_CLOCK/16)
-
-#elif defined(CONFIG_ARCH_AT91SAM9261)
-
-#define AT91SAM9_MASTER_CLOCK	99300000
-#define CLOCK_TICK_RATE		(AT91SAM9_MASTER_CLOCK/16)
-
-#elif defined(CONFIG_ARCH_AT91SAM9G10)
-
-#define AT91SAM9_MASTER_CLOCK	133000000
-#define CLOCK_TICK_RATE		(AT91SAM9_MASTER_CLOCK/16)
-
-#elif defined(CONFIG_ARCH_AT91SAM9263)
-
-#if defined(CONFIG_MACH_USB_A9263)
-#define AT91SAM9_MASTER_CLOCK	90000000
-#else
-#define AT91SAM9_MASTER_CLOCK	99959500
-#endif
-
-#define CLOCK_TICK_RATE		(AT91SAM9_MASTER_CLOCK/16)
-
-#elif defined(CONFIG_ARCH_AT91SAM9RL)
-
-#define AT91SAM9_MASTER_CLOCK	100000000
-#define CLOCK_TICK_RATE		(AT91SAM9_MASTER_CLOCK/16)
-
-#elif defined(CONFIG_ARCH_AT91SAM9G20)
+#define AT91X40_MASTER_CLOCK	40000000
+#define CLOCK_TICK_RATE		(AT91X40_MASTER_CLOCK)
 
-#if defined(CONFIG_MACH_USB_A9G20)
-#define AT91SAM9_MASTER_CLOCK	133000000
 #else
-#define AT91SAM9_MASTER_CLOCK	132096000
-#endif
-
-#define CLOCK_TICK_RATE		(AT91SAM9_MASTER_CLOCK/16)
-
-#elif defined(CONFIG_ARCH_AT91SAM9G45)
 
-#define AT91SAM9_MASTER_CLOCK	133333333
-#define CLOCK_TICK_RATE		(AT91SAM9_MASTER_CLOCK/16)
-
-#elif defined(CONFIG_ARCH_AT91CAP9)
-
-#define AT91CAP9_MASTER_CLOCK	100000000
-#define CLOCK_TICK_RATE		(AT91CAP9_MASTER_CLOCK/16)
-
-#elif defined(CONFIG_ARCH_AT91X40)
-
-#define AT91X40_MASTER_CLOCK	40000000
-#define CLOCK_TICK_RATE		(AT91X40_MASTER_CLOCK)
+#define CLOCK_TICK_RATE		12345678
 
 #endif
 
-#endif
+#endif /* __ASM_ARCH_TIMEX_H */
diff --git a/arch/arm/mach-at91/include/mach/uncompress.h b/arch/arm/mach-at91/include/mach/uncompress.h
index 18bdcdeb474f..0234fd9d20d6 100644
--- a/arch/arm/mach-at91/include/mach/uncompress.h
+++ b/arch/arm/mach-at91/include/mach/uncompress.h
@@ -24,8 +24,10 @@
 #include <linux/io.h>
 #include <linux/atmel_serial.h>
 
-#if defined(CONFIG_AT91_EARLY_DBGU)
-#define UART_OFFSET (AT91_DBGU + AT91_BASE_SYS)
+#if defined(CONFIG_AT91_EARLY_DBGU0)
+#define UART_OFFSET AT91_BASE_DBGU0
+#elif defined(CONFIG_AT91_EARLY_DBGU1)
+#define UART_OFFSET AT91_BASE_DBGU1
 #elif defined(CONFIG_AT91_EARLY_USART0)
 #define UART_OFFSET AT91_USART0
 #elif defined(CONFIG_AT91_EARLY_USART1)
diff --git a/arch/arm/mach-at91/irq.c b/arch/arm/mach-at91/irq.c
index 9665265ec757..be6b639ecd7b 100644
--- a/arch/arm/mach-at91/irq.c
+++ b/arch/arm/mach-at91/irq.c
@@ -33,17 +33,18 @@
 #include <asm/mach/irq.h>
 #include <asm/mach/map.h>
 
+void __iomem *at91_aic_base;
 
 static void at91_aic_mask_irq(struct irq_data *d)
 {
 	/* Disable interrupt on AIC */
-	at91_sys_write(AT91_AIC_IDCR, 1 << d->irq);
+	at91_aic_write(AT91_AIC_IDCR, 1 << d->irq);
 }
 
 static void at91_aic_unmask_irq(struct irq_data *d)
 {
 	/* Enable interrupt on AIC */
-	at91_sys_write(AT91_AIC_IECR, 1 << d->irq);
+	at91_aic_write(AT91_AIC_IECR, 1 << d->irq);
 }
 
 unsigned int at91_extern_irq;
@@ -77,8 +78,8 @@ static int at91_aic_set_type(struct irq_data *d, unsigned type)
 		return -EINVAL;
 	}
 
-	smr = at91_sys_read(AT91_AIC_SMR(d->irq)) & ~AT91_AIC_SRCTYPE;
-	at91_sys_write(AT91_AIC_SMR(d->irq), smr | srctype);
+	smr = at91_aic_read(AT91_AIC_SMR(d->irq)) & ~AT91_AIC_SRCTYPE;
+	at91_aic_write(AT91_AIC_SMR(d->irq), smr | srctype);
 	return 0;
 }
 
@@ -102,15 +103,15 @@ static int at91_aic_set_wake(struct irq_data *d, unsigned value)
 
 void at91_irq_suspend(void)
 {
-	backups = at91_sys_read(AT91_AIC_IMR);
-	at91_sys_write(AT91_AIC_IDCR, backups);
-	at91_sys_write(AT91_AIC_IECR, wakeups);
+	backups = at91_aic_read(AT91_AIC_IMR);
+	at91_aic_write(AT91_AIC_IDCR, backups);
+	at91_aic_write(AT91_AIC_IECR, wakeups);
 }
 
 void at91_irq_resume(void)
 {
-	at91_sys_write(AT91_AIC_IDCR, wakeups);
-	at91_sys_write(AT91_AIC_IECR, backups);
+	at91_aic_write(AT91_AIC_IDCR, wakeups);
+	at91_aic_write(AT91_AIC_IECR, backups);
 }
 
 #else
@@ -133,34 +134,39 @@ void __init at91_aic_init(unsigned int priority[NR_AIC_IRQS])
 {
 	unsigned int i;
 
+	at91_aic_base = ioremap(AT91_AIC, 512);
+
+	if (!at91_aic_base)
+		panic("Impossible to ioremap AT91_AIC\n");
+
 	/*
 	 * The IVR is used by macro get_irqnr_and_base to read and verify.
 	 * The irq number is NR_AIC_IRQS when a spurious interrupt has occurred.
 	 */
 	for (i = 0; i < NR_AIC_IRQS; i++) {
 		/* Put irq number in Source Vector Register: */
-		at91_sys_write(AT91_AIC_SVR(i), i);
+		at91_aic_write(AT91_AIC_SVR(i), i);
 		/* Active Low interrupt, with the specified priority */
-		at91_sys_write(AT91_AIC_SMR(i), AT91_AIC_SRCTYPE_LOW | priority[i]);
+		at91_aic_write(AT91_AIC_SMR(i), AT91_AIC_SRCTYPE_LOW | priority[i]);
 
 		irq_set_chip_and_handler(i, &at91_aic_chip, handle_level_irq);
 		set_irq_flags(i, IRQF_VALID | IRQF_PROBE);
 
 		/* Perform 8 End Of Interrupt Command to make sure AIC will not Lock out nIRQ */
 		if (i < 8)
-			at91_sys_write(AT91_AIC_EOICR, 0);
+			at91_aic_write(AT91_AIC_EOICR, 0);
 	}
 
 	/*
 	 * Spurious Interrupt ID in Spurious Vector Register is NR_AIC_IRQS
 	 * When there is no current interrupt, the IRQ Vector Register reads the value stored in AIC_SPU
 	 */
-	at91_sys_write(AT91_AIC_SPU, NR_AIC_IRQS);
+	at91_aic_write(AT91_AIC_SPU, NR_AIC_IRQS);
 
 	/* No debugging in AIC: Debug (Protect) Control Register */
-	at91_sys_write(AT91_AIC_DCR, 0);
+	at91_aic_write(AT91_AIC_DCR, 0);
 
 	/* Disable and clear all interrupts initially */
-	at91_sys_write(AT91_AIC_IDCR, 0xFFFFFFFF);
-	at91_sys_write(AT91_AIC_ICCR, 0xFFFFFFFF);
+	at91_aic_write(AT91_AIC_IDCR, 0xFFFFFFFF);
+	at91_aic_write(AT91_AIC_ICCR, 0xFFFFFFFF);
 }
diff --git a/arch/arm/mach-at91/pm.c b/arch/arm/mach-at91/pm.c
index 7046158109d7..62ad95556c36 100644
--- a/arch/arm/mach-at91/pm.c
+++ b/arch/arm/mach-at91/pm.c
@@ -34,7 +34,7 @@
 /*
  * Show the reason for the previous system reset.
  */
-#if defined(AT91_SHDWC)
+#if defined(AT91_RSTC)
 
 #include <mach/at91_rstc.h>
 #include <mach/at91_shdwc.h>
@@ -58,8 +58,11 @@ static void __init show_reset_status(void)
 	char *reason, *r2 = reset;
 	u32 reset_type, wake_type;
 
+	if (!at91_shdwc_base)
+		return;
+
 	reset_type = at91_sys_read(AT91_RSTC_SR) & AT91_RSTC_RSTTYP;
-	wake_type = at91_sys_read(AT91_SHDW_SR);
+	wake_type = at91_shdwc_read(AT91_SHDW_SR);
 
 	switch (reset_type) {
 	case AT91_RSTC_RSTTYP_GENERAL:
@@ -215,7 +218,7 @@ static int at91_pm_enter(suspend_state_t state)
 					| (1 << AT91_ID_FIQ)
 					| (1 << AT91_ID_SYS)
 					| (at91_extern_irq))
-				& at91_sys_read(AT91_AIC_IMR),
+				& at91_aic_read(AT91_AIC_IMR),
 			state);
 
 	switch (state) {
@@ -283,7 +286,7 @@ static int at91_pm_enter(suspend_state_t state)
 	}
 
 	pr_debug("AT91: PM - wakeup %08x\n",
-			at91_sys_read(AT91_AIC_IPR) & at91_sys_read(AT91_AIC_IMR));
+			at91_aic_read(AT91_AIC_IPR) & at91_aic_read(AT91_AIC_IMR));
 
 error:
 	target_state = PM_SUSPEND_ON;
diff --git a/arch/arm/mach-at91/sam9_smc.c b/arch/arm/mach-at91/sam9_smc.c
index 5eab6aa621d0..8294783b679d 100644
--- a/arch/arm/mach-at91/sam9_smc.c
+++ b/arch/arm/mach-at91/sam9_smc.c
@@ -10,38 +10,58 @@
 
 #include <linux/module.h>
 #include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
 
 #include <mach/at91sam9_smc.h>
 
 #include "sam9_smc.h"
 
-void __init sam9_smc_configure(int cs, struct sam9_smc_config* config)
+
+#define AT91_SMC_CS(id, n)	(smc_base_addr[id] + ((n) * 0x10))
+
+static void __iomem *smc_base_addr[2];
+
+static void __init sam9_smc_cs_configure(void __iomem *base, struct sam9_smc_config* config)
 {
+
 	/* Setup register */
-	at91_sys_write(AT91_SMC_SETUP(cs),
-		  AT91_SMC_NWESETUP_(config->nwe_setup)
-		| AT91_SMC_NCS_WRSETUP_(config->ncs_write_setup)
-		| AT91_SMC_NRDSETUP_(config->nrd_setup)
-		| AT91_SMC_NCS_RDSETUP_(config->ncs_read_setup)
-	);
+	__raw_writel(AT91_SMC_NWESETUP_(config->nwe_setup)
+		   | AT91_SMC_NCS_WRSETUP_(config->ncs_write_setup)
+		   | AT91_SMC_NRDSETUP_(config->nrd_setup)
+		   | AT91_SMC_NCS_RDSETUP_(config->ncs_read_setup),
+		   base + AT91_SMC_SETUP);
 
 	/* Pulse register */
-	at91_sys_write(AT91_SMC_PULSE(cs),
-		  AT91_SMC_NWEPULSE_(config->nwe_pulse)
-		| AT91_SMC_NCS_WRPULSE_(config->ncs_write_pulse)
-                | AT91_SMC_NRDPULSE_(config->nrd_pulse)
-		| AT91_SMC_NCS_RDPULSE_(config->ncs_read_pulse)
-	);
+	__raw_writel(AT91_SMC_NWEPULSE_(config->nwe_pulse)
+		   | AT91_SMC_NCS_WRPULSE_(config->ncs_write_pulse)
+		   | AT91_SMC_NRDPULSE_(config->nrd_pulse)
+		   | AT91_SMC_NCS_RDPULSE_(config->ncs_read_pulse),
+		   base + AT91_SMC_PULSE);
 
 	/* Cycle register */
-	at91_sys_write(AT91_SMC_CYCLE(cs),
-		  AT91_SMC_NWECYCLE_(config->write_cycle)
-		| AT91_SMC_NRDCYCLE_(config->read_cycle)
-	);
+	__raw_writel(AT91_SMC_NWECYCLE_(config->write_cycle)
+		   | AT91_SMC_NRDCYCLE_(config->read_cycle),
+		   base + AT91_SMC_CYCLE);
 
 	/* Mode register */
-	at91_sys_write(AT91_SMC_MODE(cs),
-		  config->mode
-		| AT91_SMC_TDF_(config->tdf_cycles)
-	);
+	__raw_writel(config->mode
+		   | AT91_SMC_TDF_(config->tdf_cycles),
+		   base + AT91_SMC_MODE);
+}
+
+void __init sam9_smc_configure(int id, int cs, struct sam9_smc_config* config)
+{
+	sam9_smc_cs_configure(AT91_SMC_CS(id, cs), config);
+}
+
+void __init at91sam9_ioremap_smc(int id, u32 addr)
+{
+	if (id > 1) {
+		pr_warn("%s: id > 2\n", __func__);
+		return;
+	}
+	smc_base_addr[id] = ioremap(addr, 512);
+	if (!smc_base_addr[id])
+		pr_warn("Impossible to ioremap smc.%d 0x%x\n", id, addr);
 }
diff --git a/arch/arm/mach-at91/sam9_smc.h b/arch/arm/mach-at91/sam9_smc.h
index bf72cfb3455b..039c5ce17aec 100644
--- a/arch/arm/mach-at91/sam9_smc.h
+++ b/arch/arm/mach-at91/sam9_smc.h
@@ -30,4 +30,5 @@ struct sam9_smc_config {
 	u8 tdf_cycles:4;
 };
 
-extern void __init sam9_smc_configure(int cs, struct sam9_smc_config* config);
+extern void __init sam9_smc_configure(int id, int cs, struct sam9_smc_config* config);
+extern void __init at91sam9_ioremap_smc(int id, u32 addr);
diff --git a/arch/arm/mach-at91/setup.c b/arch/arm/mach-at91/setup.c
index cf98a8f94dc5..8bdcc3cb6012 100644
--- a/arch/arm/mach-at91/setup.c
+++ b/arch/arm/mach-at91/setup.c
@@ -8,6 +8,7 @@
 #include <linux/module.h>
 #include <linux/io.h>
 #include <linux/mm.h>
+#include <linux/pm.h>
 
 #include <asm/mach/map.h>
 
@@ -15,6 +16,7 @@
 #include <mach/cpu.h>
 #include <mach/at91_dbgu.h>
 #include <mach/at91_pmc.h>
+#include <mach/at91_shdwc.h>
 
 #include "soc.h"
 #include "generic.h"
@@ -73,9 +75,6 @@ static struct map_desc at91_io_desc __initdata = {
 	.type		= MT_DEVICE,
 };
 
-#define AT91_DBGU0	0xfffff200
-#define AT91_DBGU1	0xffffee00
-
 static void __init soc_detect(u32 dbgu_base)
 {
 	u32 cidr, socid;
@@ -248,9 +247,9 @@ void __init at91_map_io(void)
 	at91_soc_initdata.type = AT91_SOC_NONE;
 	at91_soc_initdata.subtype = AT91_SOC_SUBTYPE_NONE;
 
-	soc_detect(AT91_DBGU0);
+	soc_detect(AT91_BASE_DBGU0);
 	if (!at91_soc_is_detected())
-		soc_detect(AT91_DBGU1);
+		soc_detect(AT91_BASE_DBGU1);
 
 	if (!at91_soc_is_detected())
 		panic("AT91: Impossible to detect the SOC type");
@@ -267,8 +266,25 @@ void __init at91_map_io(void)
 		at91_boot_soc.map_io();
 }
 
+void __iomem *at91_shdwc_base = NULL;
+
+static void at91sam9_poweroff(void)
+{
+	at91_shdwc_write(AT91_SHDW_CR, AT91_SHDW_KEY | AT91_SHDW_SHDW);
+}
+
+void __init at91_ioremap_shdwc(u32 base_addr)
+{
+	at91_shdwc_base = ioremap(base_addr, 16);
+	if (!at91_shdwc_base)
+		panic("Impossible to ioremap at91_shdwc_base\n");
+	pm_power_off = at91sam9_poweroff;
+}
+
 void __init at91_initialize(unsigned long main_clock)
 {
+	at91_boot_soc.ioremap_registers();
+
 	/* Init clock subsystem */
 	at91_clock_init(main_clock);
 
diff --git a/arch/arm/mach-at91/soc.h b/arch/arm/mach-at91/soc.h
index 21ed8816e6f7..4588ae6f7acd 100644
--- a/arch/arm/mach-at91/soc.h
+++ b/arch/arm/mach-at91/soc.h
@@ -7,6 +7,7 @@
 struct at91_init_soc {
 	unsigned int *default_irq_priority;
 	void (*map_io)(void);
+	void (*ioremap_registers)(void);
 	void (*register_clocks)(void);
 	void (*init)(void);
 };
diff --git a/arch/arm/mach-davinci/board-da850-evm.c b/arch/arm/mach-davinci/board-da850-evm.c
index f8a682f60a42..6b22b543a83f 100644
--- a/arch/arm/mach-davinci/board-da850-evm.c
+++ b/arch/arm/mach-davinci/board-da850-evm.c
@@ -127,7 +127,7 @@ static void da850_evm_m25p80_notify_add(struct mtd_info *mtd)
 	size_t retlen;
 
 	if (!strcmp(mtd->name, "MAC-Address")) {
-		mtd->read(mtd, 0, ETH_ALEN, &retlen, mac_addr);
+		mtd_read(mtd, 0, ETH_ALEN, &retlen, mac_addr);
 		if (retlen == ETH_ALEN)
 			pr_info("Read MAC addr from SPI Flash: %pM\n",
 				mac_addr);
diff --git a/arch/arm/mach-davinci/clock.c b/arch/arm/mach-davinci/clock.c
index 00861139101d..008772e3b843 100644
--- a/arch/arm/mach-davinci/clock.c
+++ b/arch/arm/mach-davinci/clock.c
@@ -31,19 +31,12 @@ static LIST_HEAD(clocks);
 static DEFINE_MUTEX(clocks_mutex);
 static DEFINE_SPINLOCK(clockfw_lock);
 
-static unsigned psc_domain(struct clk *clk)
-{
-	return (clk->flags & PSC_DSP)
-		? DAVINCI_GPSC_DSPDOMAIN
-		: DAVINCI_GPSC_ARMDOMAIN;
-}
-
 static void __clk_enable(struct clk *clk)
 {
 	if (clk->parent)
 		__clk_enable(clk->parent);
 	if (clk->usecount++ == 0 && (clk->flags & CLK_PSC))
-		davinci_psc_config(psc_domain(clk), clk->gpsc, clk->lpsc,
+		davinci_psc_config(clk->domain, clk->gpsc, clk->lpsc,
 				true, clk->flags);
 }
 
@@ -53,7 +46,7 @@ static void __clk_disable(struct clk *clk)
 		return;
 	if (--clk->usecount == 0 && !(clk->flags & CLK_PLL) &&
 	    (clk->flags & CLK_PSC))
-		davinci_psc_config(psc_domain(clk), clk->gpsc, clk->lpsc,
+		davinci_psc_config(clk->domain, clk->gpsc, clk->lpsc,
 				false, clk->flags);
 	if (clk->parent)
 		__clk_disable(clk->parent);
@@ -237,7 +230,7 @@ static int __init clk_disable_unused(void)
 
 		pr_debug("Clocks: disable unused %s\n", ck->name);
 
-		davinci_psc_config(psc_domain(ck), ck->gpsc, ck->lpsc,
+		davinci_psc_config(ck->domain, ck->gpsc, ck->lpsc,
 				false, ck->flags);
 	}
 	spin_unlock_irq(&clockfw_lock);
diff --git a/arch/arm/mach-davinci/clock.h b/arch/arm/mach-davinci/clock.h
index a705f367a84d..46f0f1bf1a4c 100644
--- a/arch/arm/mach-davinci/clock.h
+++ b/arch/arm/mach-davinci/clock.h
@@ -93,6 +93,7 @@ struct clk {
 	u8			usecount;
 	u8			lpsc;
 	u8			gpsc;
+	u8			domain;
 	u32			flags;
 	struct clk              *parent;
 	struct list_head	children; 	/* list of children */
@@ -107,11 +108,10 @@ struct clk {
 /* Clock flags: SoC-specific flags start at BIT(16) */
 #define ALWAYS_ENABLED		BIT(1)
 #define CLK_PSC			BIT(2)
-#define PSC_DSP			BIT(3) /* PSC uses DSP domain, not ARM */
-#define CLK_PLL			BIT(4) /* PLL-derived clock */
-#define PRE_PLL			BIT(5) /* source is before PLL mult/div */
-#define PSC_SWRSTDISABLE	BIT(6) /* Disable state is SwRstDisable */
-#define PSC_FORCE		BIT(7) /* Force module state transtition */
+#define CLK_PLL			BIT(3) /* PLL-derived clock */
+#define PRE_PLL			BIT(4) /* source is before PLL mult/div */
+#define PSC_SWRSTDISABLE	BIT(5) /* Disable state is SwRstDisable */
+#define PSC_FORCE		BIT(6) /* Force module state transtition */
 
 #define CLK(dev, con, ck) 	\
 	{			\
diff --git a/arch/arm/mach-davinci/dm644x.c b/arch/arm/mach-davinci/dm644x.c
index 0800f9cf33bb..43a48ee1917b 100644
--- a/arch/arm/mach-davinci/dm644x.c
+++ b/arch/arm/mach-davinci/dm644x.c
@@ -130,7 +130,7 @@ static struct clk dsp_clk = {
 	.name = "dsp",
 	.parent = &pll1_sysclk1,
 	.lpsc = DAVINCI_LPSC_GEM,
-	.flags = PSC_DSP,
+	.domain = DAVINCI_GPSC_DSPDOMAIN,
 	.usecount = 1,			/* REVISIT how to disable? */
 };
 
@@ -145,7 +145,7 @@ static struct clk vicp_clk = {
 	.name = "vicp",
 	.parent = &pll1_sysclk2,
 	.lpsc = DAVINCI_LPSC_IMCOP,
-	.flags = PSC_DSP,
+	.domain = DAVINCI_GPSC_DSPDOMAIN,
 	.usecount = 1,			/* REVISIT how to disable? */
 };
 
diff --git a/arch/arm/mach-davinci/include/mach/dm646x.h b/arch/arm/mach-davinci/include/mach/dm646x.h
index 2a00fe5ac253..a8ee6c9f0bb0 100644
--- a/arch/arm/mach-davinci/include/mach/dm646x.h
+++ b/arch/arm/mach-davinci/include/mach/dm646x.h
@@ -16,6 +16,7 @@
 #include <linux/i2c.h>
 #include <linux/videodev2.h>
 #include <linux/davinci_emac.h>
+#include <media/davinci/vpif_types.h>
 
 #define DM646X_EMAC_BASE		(0x01C80000)
 #define DM646X_EMAC_MDIO_BASE		(DM646X_EMAC_BASE + 0x4000)
@@ -34,58 +35,6 @@ int __init dm646x_init_edma(struct edma_rsv_info *rsv);
 
 void dm646x_video_init(void);
 
-enum vpif_if_type {
-	VPIF_IF_BT656,
-	VPIF_IF_BT1120,
-	VPIF_IF_RAW_BAYER
-};
-
-struct vpif_interface {
-	enum vpif_if_type if_type;
-	unsigned hd_pol:1;
-	unsigned vd_pol:1;
-	unsigned fid_pol:1;
-};
-
-struct vpif_subdev_info {
-	const char *name;
-	struct i2c_board_info board_info;
-	u32 input;
-	u32 output;
-	unsigned can_route:1;
-	struct vpif_interface vpif_if;
-};
-
-struct vpif_display_config {
-	int (*set_clock)(int, int);
-	struct vpif_subdev_info *subdevinfo;
-	int subdev_count;
-	const char **output;
-	int output_count;
-	const char *card_name;
-};
-
-struct vpif_input {
-	struct v4l2_input input;
-	const char *subdev_name;
-};
-
-#define VPIF_CAPTURE_MAX_CHANNELS	2
-
-struct vpif_capture_chan_config {
-	const struct vpif_input *inputs;
-	int input_count;
-};
-
-struct vpif_capture_config {
-	int (*setup_input_channel_mode)(int);
-	int (*setup_input_path)(int, const char *);
-	struct vpif_capture_chan_config chan_config[VPIF_CAPTURE_MAX_CHANNELS];
-	struct vpif_subdev_info *subdev_info;
-	int subdev_count;
-	const char *card_name;
-};
-
 void dm646x_setup_vpif(struct vpif_display_config *,
 		       struct vpif_capture_config *);
 
diff --git a/arch/arm/mach-dove/addr-map.c b/arch/arm/mach-dove/addr-map.c
index 00be4fc26dd7..98b8c83b09ab 100644
--- a/arch/arm/mach-dove/addr-map.c
+++ b/arch/arm/mach-dove/addr-map.c
@@ -14,6 +14,7 @@
 #include <linux/io.h>
 #include <asm/mach/arch.h>
 #include <asm/setup.h>
+#include <plat/addr-map.h>
 #include "common.h"
 
 /*
@@ -34,98 +35,72 @@
 #define ATTR_PCIE_MEM		0xe8
 #define ATTR_SCRATCHPAD		0x0
 
-/*
- * CPU Address Decode Windows registers
- */
-#define WIN_CTRL(n)	(BRIDGE_VIRT_BASE + ((n) << 4) + 0x0)
-#define WIN_BASE(n)	(BRIDGE_VIRT_BASE + ((n) << 4) + 0x4)
-#define WIN_REMAP_LO(n)	(BRIDGE_VIRT_BASE + ((n) << 4) + 0x8)
-#define WIN_REMAP_HI(n)	(BRIDGE_VIRT_BASE + ((n) << 4) + 0xc)
-
-struct mbus_dram_target_info dove_mbus_dram_info;
-
 static inline void __iomem *ddr_map_sc(int i)
 {
 	return (void __iomem *)(DOVE_MC_VIRT_BASE + 0x100 + ((i) << 4));
 }
 
-static int cpu_win_can_remap(int win)
-{
-	if (win < 4)
-		return 1;
-
-	return 0;
-}
-
-static void __init setup_cpu_win(int win, u32 base, u32 size,
-				 u8 target, u8 attr, int remap)
-{
-	u32 ctrl;
-
-	base &= 0xffff0000;
-	ctrl = ((size - 1) & 0xffff0000) | (attr << 8) | (target << 4) | 1;
-
-	writel(base, WIN_BASE(win));
-	writel(ctrl, WIN_CTRL(win));
-	if (cpu_win_can_remap(win)) {
-		if (remap < 0)
-			remap = base;
-		writel(remap & 0xffff0000, WIN_REMAP_LO(win));
-		writel(0, WIN_REMAP_HI(win));
-	}
-}
-
-void __init dove_setup_cpu_mbus(void)
-{
-	int i;
-	int cs;
+/*
+ * Description of the windows needed by the platform code
+ */
+static struct __initdata orion_addr_map_cfg addr_map_cfg = {
+	.num_wins = 8,
+	.remappable_wins = 4,
+	.bridge_virt_base = BRIDGE_VIRT_BASE,
+};
 
+static const struct __initdata orion_addr_map_info addr_map_info[] = {
 	/*
-	 * First, disable and clear windows.
+	 * Windows for PCIe IO+MEM space.
 	 */
-	for (i = 0; i < 8; i++) {
-		writel(0, WIN_BASE(i));
-		writel(0, WIN_CTRL(i));
-		if (cpu_win_can_remap(i)) {
-			writel(0, WIN_REMAP_LO(i));
-			writel(0, WIN_REMAP_HI(i));
-		}
-	}
-
+	{ 0, DOVE_PCIE0_IO_PHYS_BASE, DOVE_PCIE0_IO_SIZE,
+	  TARGET_PCIE0, ATTR_PCIE_IO, DOVE_PCIE0_IO_BUS_BASE
+	},
+	{ 1, DOVE_PCIE1_IO_PHYS_BASE, DOVE_PCIE1_IO_SIZE,
+	  TARGET_PCIE1, ATTR_PCIE_IO, DOVE_PCIE1_IO_BUS_BASE
+	},
+	{ 2, DOVE_PCIE0_MEM_PHYS_BASE, DOVE_PCIE0_MEM_SIZE,
+	  TARGET_PCIE0, ATTR_PCIE_MEM, -1
+	},
+	{ 3, DOVE_PCIE1_MEM_PHYS_BASE, DOVE_PCIE1_MEM_SIZE,
+	  TARGET_PCIE1, ATTR_PCIE_MEM, -1
+	},
 	/*
-	 * Setup windows for PCIe IO+MEM space.
+	 * Window for CESA engine.
 	 */
-	setup_cpu_win(0, DOVE_PCIE0_IO_PHYS_BASE, DOVE_PCIE0_IO_SIZE,
-		      TARGET_PCIE0, ATTR_PCIE_IO, DOVE_PCIE0_IO_BUS_BASE);
-	setup_cpu_win(1, DOVE_PCIE1_IO_PHYS_BASE, DOVE_PCIE1_IO_SIZE,
-		      TARGET_PCIE1, ATTR_PCIE_IO, DOVE_PCIE1_IO_BUS_BASE);
-	setup_cpu_win(2, DOVE_PCIE0_MEM_PHYS_BASE, DOVE_PCIE0_MEM_SIZE,
-		      TARGET_PCIE0, ATTR_PCIE_MEM, -1);
-	setup_cpu_win(3, DOVE_PCIE1_MEM_PHYS_BASE, DOVE_PCIE1_MEM_SIZE,
-		      TARGET_PCIE1, ATTR_PCIE_MEM, -1);
-
+	{ 4, DOVE_CESA_PHYS_BASE, DOVE_CESA_SIZE,
+	  TARGET_CESA, ATTR_CESA, -1
+	},
 	/*
-	 * Setup window for CESA engine.
+	 * Window to the BootROM for Standby and Sleep Resume
 	 */
-	setup_cpu_win(4, DOVE_CESA_PHYS_BASE, DOVE_CESA_SIZE,
-		      TARGET_CESA, ATTR_CESA, -1);
-
+	{ 5, DOVE_BOOTROM_PHYS_BASE, DOVE_BOOTROM_SIZE,
+	  TARGET_BOOTROM, ATTR_BOOTROM, -1
+	},
 	/*
-	 * Setup the Window to the BootROM for Standby and Sleep Resume
+	 * Window to the PMU Scratch Pad space
 	 */
-	setup_cpu_win(5, DOVE_BOOTROM_PHYS_BASE, DOVE_BOOTROM_SIZE,
-		      TARGET_BOOTROM, ATTR_BOOTROM, -1);
+	{ 6, DOVE_SCRATCHPAD_PHYS_BASE, DOVE_SCRATCHPAD_SIZE,
+	  TARGET_SCRATCHPAD, ATTR_SCRATCHPAD, -1
+	},
+	/* End marker */
+	{ -1, 0, 0, 0, 0, 0 }
+};
+
+void __init dove_setup_cpu_mbus(void)
+{
+	int i;
+	int cs;
 
 	/*
-	 * Setup the Window to the PMU Scratch Pad space
+	 * Disable, clear and configure windows.
 	 */
-	setup_cpu_win(6, DOVE_SCRATCHPAD_PHYS_BASE, DOVE_SCRATCHPAD_SIZE,
-		      TARGET_SCRATCHPAD, ATTR_SCRATCHPAD, -1);
+	orion_config_wins(&addr_map_cfg, addr_map_info);
 
 	/*
 	 * Setup MBUS dram target info.
 	 */
-	dove_mbus_dram_info.mbus_dram_target_id = TARGET_DDR;
+	orion_mbus_dram_info.mbus_dram_target_id = TARGET_DDR;
 
 	for (i = 0, cs = 0; i < 2; i++) {
 		u32 map = readl(ddr_map_sc(i));
@@ -136,7 +111,7 @@ void __init dove_setup_cpu_mbus(void)
 		if (map & 1) {
 			struct mbus_dram_window *w;
 
-			w = &dove_mbus_dram_info.cs[cs++];
+			w = &orion_mbus_dram_info.cs[cs++];
 			w->cs_index = i;
 			w->mbus_attr = 0; /* CS address decoding done inside */
 					  /* the DDR controller, no need to  */
@@ -145,5 +120,5 @@ void __init dove_setup_cpu_mbus(void)
 			w->size = 0x100000 << (((map & 0x000f0000) >> 16) - 4);
 		}
 	}
-	dove_mbus_dram_info.num_cs = cs;
+	orion_mbus_dram_info.num_cs = cs;
 }
diff --git a/arch/arm/mach-dove/common.c b/arch/arm/mach-dove/common.c
index 13bb236cd0cd..dd1429ae6405 100644
--- a/arch/arm/mach-dove/common.c
+++ b/arch/arm/mach-dove/common.c
@@ -14,7 +14,6 @@
 #include <linux/platform_device.h>
 #include <linux/pci.h>
 #include <linux/clk.h>
-#include <linux/mbus.h>
 #include <linux/ata_platform.h>
 #include <linux/gpio.h>
 #include <asm/page.h>
@@ -30,6 +29,7 @@
 #include <linux/irq.h>
 #include <plat/time.h>
 #include <plat/common.h>
+#include <plat/addr-map.h>
 #include "common.h"
 
 static int get_tclk(void);
@@ -71,8 +71,7 @@ void __init dove_map_io(void)
  ****************************************************************************/
 void __init dove_ehci0_init(void)
 {
-	orion_ehci_init(&dove_mbus_dram_info,
-			DOVE_USB0_PHYS_BASE, IRQ_DOVE_USB0);
+	orion_ehci_init(DOVE_USB0_PHYS_BASE, IRQ_DOVE_USB0);
 }
 
 /*****************************************************************************
@@ -80,8 +79,7 @@ void __init dove_ehci0_init(void)
  ****************************************************************************/
 void __init dove_ehci1_init(void)
 {
-	orion_ehci_1_init(&dove_mbus_dram_info,
-			  DOVE_USB1_PHYS_BASE, IRQ_DOVE_USB1);
+	orion_ehci_1_init(DOVE_USB1_PHYS_BASE, IRQ_DOVE_USB1);
 }
 
 /*****************************************************************************
@@ -89,7 +87,7 @@ void __init dove_ehci1_init(void)
  ****************************************************************************/
 void __init dove_ge00_init(struct mv643xx_eth_platform_data *eth_data)
 {
-	orion_ge00_init(eth_data, &dove_mbus_dram_info,
+	orion_ge00_init(eth_data,
 			DOVE_GE00_PHYS_BASE, IRQ_DOVE_GE00_SUM,
 			0, get_tclk());
 }
@@ -107,8 +105,7 @@ void __init dove_rtc_init(void)
  ****************************************************************************/
 void __init dove_sata_init(struct mv_sata_platform_data *sata_data)
 {
-	orion_sata_init(sata_data, &dove_mbus_dram_info,
-			DOVE_SATA_PHYS_BASE, IRQ_DOVE_SATA);
+	orion_sata_init(sata_data, DOVE_SATA_PHYS_BASE, IRQ_DOVE_SATA);
 
 }
 
@@ -198,8 +195,7 @@ struct sys_timer dove_timer = {
  ****************************************************************************/
 void __init dove_xor0_init(void)
 {
-	orion_xor0_init(&dove_mbus_dram_info,
-			DOVE_XOR0_PHYS_BASE, DOVE_XOR0_HIGH_PHYS_BASE,
+	orion_xor0_init(DOVE_XOR0_PHYS_BASE, DOVE_XOR0_HIGH_PHYS_BASE,
 			IRQ_DOVE_XOR_00, IRQ_DOVE_XOR_01);
 }
 
diff --git a/arch/arm/mach-dove/common.h b/arch/arm/mach-dove/common.h
index 42027305c107..6432a3ba864b 100644
--- a/arch/arm/mach-dove/common.h
+++ b/arch/arm/mach-dove/common.h
@@ -15,7 +15,6 @@ struct mv643xx_eth_platform_data;
 struct mv_sata_platform_data;
 
 extern struct sys_timer dove_timer;
-extern struct mbus_dram_target_info dove_mbus_dram_info;
 
 /*
  * Basic Dove init functions used early by machine-setup.
diff --git a/arch/arm/mach-dove/pcie.c b/arch/arm/mach-dove/pcie.c
index aa2b3a09a51d..6c11a4df7178 100644
--- a/arch/arm/mach-dove/pcie.c
+++ b/arch/arm/mach-dove/pcie.c
@@ -10,7 +10,6 @@
 
 #include <linux/kernel.h>
 #include <linux/pci.h>
-#include <linux/mbus.h>
 #include <video/vga.h>
 #include <asm/mach/pci.h>
 #include <asm/mach/arch.h>
@@ -19,6 +18,7 @@
 #include <plat/pcie.h>
 #include <mach/irqs.h>
 #include <mach/bridge-regs.h>
+#include <plat/addr-map.h>
 #include "common.h"
 
 struct pcie_port {
@@ -50,7 +50,7 @@ static int __init dove_pcie_setup(int nr, struct pci_sys_data *sys)
 	 */
 	orion_pcie_set_local_bus_nr(pp->base, sys->busnr);
 
-	orion_pcie_setup(pp->base, &dove_mbus_dram_info);
+	orion_pcie_setup(pp->base);
 
 	/*
 	 * IORESOURCE_IO
diff --git a/arch/arm/mach-exynos/Kconfig b/arch/arm/mach-exynos/Kconfig
index e1efbca2a539..5d602f68a0e8 100644
--- a/arch/arm/mach-exynos/Kconfig
+++ b/arch/arm/mach-exynos/Kconfig
@@ -59,6 +59,11 @@ config EXYNOS4_MCT
 	help
 	  Use MCT (Multi Core Timer) as kernel timers
 
+config EXYNOS4_DEV_DMA
+	bool
+	help
+	  Compile in amba device definitions for DMA controller
+
 config EXYNOS4_DEV_AHCI
 	bool
 	help
@@ -84,6 +89,11 @@ config EXYNOS4_DEV_DWMCI
 	help
 	  Compile in platform device definitions for DWMCI
 
+config EXYNOS4_DEV_USB_OHCI
+	bool
+	help
+	  Compile in platform device definition for USB OHCI
+
 config EXYNOS4_SETUP_I2C1
 	bool
 	help
@@ -145,6 +155,11 @@ config EXYNOS4_SETUP_USB_PHY
 	help
 	  Common setup code for USB PHY controller
 
+config EXYNOS4_SETUP_SPI
+	bool
+	help
+	  Common setup code for SPI GPIO configurations.
+
 # machine support
 
 if ARCH_EXYNOS4
@@ -179,8 +194,10 @@ config MACH_SMDKV310
 	select SAMSUNG_DEV_BACKLIGHT
 	select EXYNOS4_DEV_AHCI
 	select SAMSUNG_DEV_KEYPAD
+	select EXYNOS4_DEV_DMA
 	select EXYNOS4_DEV_PD
 	select SAMSUNG_DEV_PWM
+	select EXYNOS4_DEV_USB_OHCI
 	select EXYNOS4_DEV_SYSMMU
 	select EXYNOS4_SETUP_FIMD0
 	select EXYNOS4_SETUP_I2C1
@@ -199,6 +216,7 @@ config MACH_ARMLEX4210
 	select S3C_DEV_HSMMC2
 	select S3C_DEV_HSMMC3
 	select EXYNOS4_DEV_AHCI
+	select EXYNOS4_DEV_DMA
 	select EXYNOS4_DEV_SYSMMU
 	select EXYNOS4_SETUP_SDHCI
 	help
@@ -224,6 +242,7 @@ config MACH_UNIVERSAL_C210
 	select S5P_DEV_MFC
 	select S5P_DEV_ONENAND
 	select S5P_DEV_TV
+	select EXYNOS4_DEV_DMA
 	select EXYNOS4_DEV_PD
 	select EXYNOS4_SETUP_FIMD0
 	select EXYNOS4_SETUP_I2C1
@@ -257,6 +276,7 @@ config MACH_NURI
 	select S5P_DEV_MFC
 	select S5P_DEV_USB_EHCI
 	select S5P_SETUP_MIPIPHY
+	select EXYNOS4_DEV_DMA
 	select EXYNOS4_DEV_PD
 	select EXYNOS4_SETUP_FIMC
 	select EXYNOS4_SETUP_FIMD0
@@ -289,7 +309,9 @@ config MACH_ORIGEN
 	select S5P_DEV_USB_EHCI
 	select SAMSUNG_DEV_BACKLIGHT
 	select SAMSUNG_DEV_PWM
+	select EXYNOS4_DEV_DMA
 	select EXYNOS4_DEV_PD
+	select EXYNOS4_DEV_USB_OHCI
 	select EXYNOS4_SETUP_FIMD0
 	select EXYNOS4_SETUP_SDHCI
 	select EXYNOS4_SETUP_USB_PHY
@@ -329,6 +351,20 @@ config MACH_SMDK4412
 	  Machine support for Samsung SMDK4412
 endif
 
+comment "Flattened Device Tree based board for Exynos4 based SoC"
+
+config MACH_EXYNOS4_DT
+	bool "Samsung Exynos4 Machine using device tree"
+	select CPU_EXYNOS4210
+	select USE_OF
+	select ARM_AMBA
+	select HAVE_SAMSUNG_KEYPAD if INPUT_KEYBOARD
+	help
+	  Machine support for Samsung Exynos4 machine with device tree enabled.
+	  Select this if a fdt blob is available for the Exynos4 SoC based board.
+	  Note: This is under development and not all peripherals can be supported
+	  with this machine file.
+
 if ARCH_EXYNOS4
 
 comment "Configuration for HSMMC 8-bit bus width"
diff --git a/arch/arm/mach-exynos/Makefile b/arch/arm/mach-exynos/Makefile
index bcb9efc576e9..5fc202cdfdb6 100644
--- a/arch/arm/mach-exynos/Makefile
+++ b/arch/arm/mach-exynos/Makefile
@@ -19,7 +19,7 @@ obj-$(CONFIG_SOC_EXYNOS4212)	+= clock-exynos4212.o
 obj-$(CONFIG_PM)		+= pm.o
 obj-$(CONFIG_CPU_IDLE)		+= cpuidle.o
 
-obj-$(CONFIG_ARCH_EXYNOS4)	+= dma.o pmu.o
+obj-$(CONFIG_ARCH_EXYNOS4)	+= pmu.o
 
 obj-$(CONFIG_SMP)		+= platsmp.o headsmp.o
 
@@ -39,6 +39,8 @@ obj-$(CONFIG_MACH_ORIGEN)		+= mach-origen.o
 obj-$(CONFIG_MACH_SMDK4212)		+= mach-smdk4x12.o
 obj-$(CONFIG_MACH_SMDK4412)		+= mach-smdk4x12.o
 
+obj-$(CONFIG_MACH_EXYNOS4_DT)		+= mach-exynos4-dt.o
+
 # device support
 
 obj-$(CONFIG_ARCH_EXYNOS4)		+= dev-audio.o
@@ -46,6 +48,8 @@ obj-$(CONFIG_EXYNOS4_DEV_AHCI)		+= dev-ahci.o
 obj-$(CONFIG_EXYNOS4_DEV_PD)		+= dev-pd.o
 obj-$(CONFIG_EXYNOS4_DEV_SYSMMU)	+= dev-sysmmu.o
 obj-$(CONFIG_EXYNOS4_DEV_DWMCI)		+= dev-dwmci.o
+obj-$(CONFIG_EXYNOS4_DEV_DMA)		+= dma.o
+obj-$(CONFIG_EXYNOS4_DEV_USB_OHCI)	+= dev-ohci.o
 
 obj-$(CONFIG_ARCH_EXYNOS4)		+= setup-i2c0.o
 obj-$(CONFIG_EXYNOS4_SETUP_FIMC)	+= setup-fimc.o
@@ -58,6 +62,6 @@ obj-$(CONFIG_EXYNOS4_SETUP_I2C5)	+= setup-i2c5.o
 obj-$(CONFIG_EXYNOS4_SETUP_I2C6)	+= setup-i2c6.o
 obj-$(CONFIG_EXYNOS4_SETUP_I2C7)	+= setup-i2c7.o
 obj-$(CONFIG_EXYNOS4_SETUP_KEYPAD)	+= setup-keypad.o
-obj-$(CONFIG_EXYNOS4_SETUP_SDHCI)	+= setup-sdhci.o
 obj-$(CONFIG_EXYNOS4_SETUP_SDHCI_GPIO)	+= setup-sdhci-gpio.o
 obj-$(CONFIG_EXYNOS4_SETUP_USB_PHY)	+= setup-usb-phy.o
+obj-$(CONFIG_EXYNOS4_SETUP_SPI)		+= setup-spi.o
diff --git a/arch/arm/mach-exynos/clock.c b/arch/arm/mach-exynos/clock.c
index 83616a039b15..5a8c42e90005 100644
--- a/arch/arm/mach-exynos/clock.c
+++ b/arch/arm/mach-exynos/clock.c
@@ -554,16 +554,6 @@ static struct clk init_clocks_off[] = {
 		.enable		= exynos4_clk_dac_ctrl,
 		.ctrlbit	= (1 << 0),
 	}, {
-		.name		= "dma",
-		.devname	= "dma-pl330.0",
-		.enable		= exynos4_clk_ip_fsys_ctrl,
-		.ctrlbit	= (1 << 0),
-	}, {
-		.name		= "dma",
-		.devname	= "dma-pl330.1",
-		.enable		= exynos4_clk_ip_fsys_ctrl,
-		.ctrlbit	= (1 << 1),
-	}, {
 		.name		= "adc",
 		.enable		= exynos4_clk_ip_peril_ctrl,
 		.ctrlbit	= (1 << 15),
@@ -779,6 +769,20 @@ static struct clk init_clocks[] = {
 	}
 };
 
+static struct clk clk_pdma0 = {
+	.name		= "dma",
+	.devname	= "dma-pl330.0",
+	.enable		= exynos4_clk_ip_fsys_ctrl,
+	.ctrlbit	= (1 << 0),
+};
+
+static struct clk clk_pdma1 = {
+	.name		= "dma",
+	.devname	= "dma-pl330.1",
+	.enable		= exynos4_clk_ip_fsys_ctrl,
+	.ctrlbit	= (1 << 1),
+};
+
 struct clk *clkset_group_list[] = {
 	[0] = &clk_ext_xtal_mux,
 	[1] = &clk_xusbxti,
@@ -1010,46 +1014,6 @@ static struct clksrc_clk clk_dout_mmc4 = {
 
 static struct clksrc_clk clksrcs[] = {
 	{
-		.clk	= {
-			.name		= "uclk1",
-			.devname	= "s5pv210-uart.0",
-			.enable		= exynos4_clksrc_mask_peril0_ctrl,
-			.ctrlbit	= (1 << 0),
-		},
-		.sources = &clkset_group,
-		.reg_src = { .reg = S5P_CLKSRC_PERIL0, .shift = 0, .size = 4 },
-		.reg_div = { .reg = S5P_CLKDIV_PERIL0, .shift = 0, .size = 4 },
-	}, {
-		.clk		= {
-			.name		= "uclk1",
-			.devname	= "s5pv210-uart.1",
-			.enable		= exynos4_clksrc_mask_peril0_ctrl,
-			.ctrlbit	= (1 << 4),
-		},
-		.sources = &clkset_group,
-		.reg_src = { .reg = S5P_CLKSRC_PERIL0, .shift = 4, .size = 4 },
-		.reg_div = { .reg = S5P_CLKDIV_PERIL0, .shift = 4, .size = 4 },
-	}, {
-		.clk		= {
-			.name		= "uclk1",
-			.devname	= "s5pv210-uart.2",
-			.enable		= exynos4_clksrc_mask_peril0_ctrl,
-			.ctrlbit	= (1 << 8),
-		},
-		.sources = &clkset_group,
-		.reg_src = { .reg = S5P_CLKSRC_PERIL0, .shift = 8, .size = 4 },
-		.reg_div = { .reg = S5P_CLKDIV_PERIL0, .shift = 8, .size = 4 },
-	}, {
-		.clk		= {
-			.name		= "uclk1",
-			.devname	= "s5pv210-uart.3",
-			.enable		= exynos4_clksrc_mask_peril0_ctrl,
-			.ctrlbit	= (1 << 12),
-		},
-		.sources = &clkset_group,
-		.reg_src = { .reg = S5P_CLKSRC_PERIL0, .shift = 12, .size = 4 },
-		.reg_div = { .reg = S5P_CLKDIV_PERIL0, .shift = 12, .size = 4 },
-	}, {
 		.clk		= {
 			.name		= "sclk_pwm",
 			.enable		= exynos4_clksrc_mask_peril0_ctrl,
@@ -1148,36 +1112,6 @@ static struct clksrc_clk clksrcs[] = {
 		.reg_div = { .reg = S5P_CLKDIV_LCD0, .shift = 0, .size = 4 },
 	}, {
 		.clk		= {
-			.name		= "sclk_spi",
-			.devname	= "s3c64xx-spi.0",
-			.enable		= exynos4_clksrc_mask_peril1_ctrl,
-			.ctrlbit	= (1 << 16),
-		},
-		.sources = &clkset_group,
-		.reg_src = { .reg = S5P_CLKSRC_PERIL1, .shift = 16, .size = 4 },
-		.reg_div = { .reg = S5P_CLKDIV_PERIL1, .shift = 0, .size = 4 },
-	}, {
-		.clk		= {
-			.name		= "sclk_spi",
-			.devname	= "s3c64xx-spi.1",
-			.enable		= exynos4_clksrc_mask_peril1_ctrl,
-			.ctrlbit	= (1 << 20),
-		},
-		.sources = &clkset_group,
-		.reg_src = { .reg = S5P_CLKSRC_PERIL1, .shift = 20, .size = 4 },
-		.reg_div = { .reg = S5P_CLKDIV_PERIL1, .shift = 16, .size = 4 },
-	}, {
-		.clk		= {
-			.name		= "sclk_spi",
-			.devname	= "s3c64xx-spi.2",
-			.enable		= exynos4_clksrc_mask_peril1_ctrl,
-			.ctrlbit	= (1 << 24),
-		},
-		.sources = &clkset_group,
-		.reg_src = { .reg = S5P_CLKSRC_PERIL1, .shift = 24, .size = 4 },
-		.reg_div = { .reg = S5P_CLKDIV_PERIL2, .shift = 0, .size = 4 },
-	}, {
-		.clk		= {
 			.name		= "sclk_fimg2d",
 		},
 		.sources = &clkset_mout_g2d,
@@ -1193,42 +1127,6 @@ static struct clksrc_clk clksrcs[] = {
 		.reg_div = { .reg = S5P_CLKDIV_MFC, .shift = 0, .size = 4 },
 	}, {
 		.clk		= {
-			.name		= "sclk_mmc",
-			.devname	= "s3c-sdhci.0",
-			.parent		= &clk_dout_mmc0.clk,
-			.enable		= exynos4_clksrc_mask_fsys_ctrl,
-			.ctrlbit	= (1 << 0),
-		},
-		.reg_div = { .reg = S5P_CLKDIV_FSYS1, .shift = 8, .size = 8 },
-	}, {
-		.clk		= {
-			.name		= "sclk_mmc",
-			.devname	= "s3c-sdhci.1",
-			.parent         = &clk_dout_mmc1.clk,
-			.enable		= exynos4_clksrc_mask_fsys_ctrl,
-			.ctrlbit	= (1 << 4),
-		},
-		.reg_div = { .reg = S5P_CLKDIV_FSYS1, .shift = 24, .size = 8 },
-	}, {
-		.clk		= {
-			.name		= "sclk_mmc",
-			.devname	= "s3c-sdhci.2",
-			.parent         = &clk_dout_mmc2.clk,
-			.enable		= exynos4_clksrc_mask_fsys_ctrl,
-			.ctrlbit	= (1 << 8),
-		},
-		.reg_div = { .reg = S5P_CLKDIV_FSYS2, .shift = 8, .size = 8 },
-	}, {
-		.clk		= {
-			.name		= "sclk_mmc",
-			.devname	= "s3c-sdhci.3",
-			.parent         = &clk_dout_mmc3.clk,
-			.enable		= exynos4_clksrc_mask_fsys_ctrl,
-			.ctrlbit	= (1 << 12),
-		},
-		.reg_div = { .reg = S5P_CLKDIV_FSYS2, .shift = 24, .size = 8 },
-	}, {
-		.clk		= {
 			.name		= "sclk_dwmmc",
 			.parent         = &clk_dout_mmc4.clk,
 			.enable		= exynos4_clksrc_mask_fsys_ctrl,
@@ -1238,6 +1136,134 @@ static struct clksrc_clk clksrcs[] = {
 	}
 };
 
+static struct clksrc_clk clk_sclk_uart0 = {
+	.clk	= {
+		.name		= "uclk1",
+		.devname	= "exynos4210-uart.0",
+		.enable		= exynos4_clksrc_mask_peril0_ctrl,
+		.ctrlbit	= (1 << 0),
+	},
+	.sources = &clkset_group,
+	.reg_src = { .reg = S5P_CLKSRC_PERIL0, .shift = 0, .size = 4 },
+	.reg_div = { .reg = S5P_CLKDIV_PERIL0, .shift = 0, .size = 4 },
+};
+
+static struct clksrc_clk clk_sclk_uart1 = {
+	.clk		= {
+		.name		= "uclk1",
+		.devname	= "exynos4210-uart.1",
+		.enable		= exynos4_clksrc_mask_peril0_ctrl,
+		.ctrlbit	= (1 << 4),
+	},
+	.sources = &clkset_group,
+	.reg_src = { .reg = S5P_CLKSRC_PERIL0, .shift = 4, .size = 4 },
+	.reg_div = { .reg = S5P_CLKDIV_PERIL0, .shift = 4, .size = 4 },
+};
+
+static struct clksrc_clk clk_sclk_uart2 = {
+	.clk		= {
+		.name		= "uclk1",
+		.devname	= "exynos4210-uart.2",
+		.enable		= exynos4_clksrc_mask_peril0_ctrl,
+		.ctrlbit	= (1 << 8),
+	},
+	.sources = &clkset_group,
+	.reg_src = { .reg = S5P_CLKSRC_PERIL0, .shift = 8, .size = 4 },
+	.reg_div = { .reg = S5P_CLKDIV_PERIL0, .shift = 8, .size = 4 },
+};
+
+static struct clksrc_clk clk_sclk_uart3 = {
+	.clk		= {
+		.name		= "uclk1",
+		.devname	= "exynos4210-uart.3",
+		.enable		= exynos4_clksrc_mask_peril0_ctrl,
+		.ctrlbit	= (1 << 12),
+	},
+	.sources = &clkset_group,
+	.reg_src = { .reg = S5P_CLKSRC_PERIL0, .shift = 12, .size = 4 },
+	.reg_div = { .reg = S5P_CLKDIV_PERIL0, .shift = 12, .size = 4 },
+};
+
+static struct clksrc_clk clk_sclk_mmc0 = {
+	.clk		= {
+		.name		= "sclk_mmc",
+		.devname	= "s3c-sdhci.0",
+		.parent		= &clk_dout_mmc0.clk,
+		.enable		= exynos4_clksrc_mask_fsys_ctrl,
+		.ctrlbit	= (1 << 0),
+	},
+	.reg_div = { .reg = S5P_CLKDIV_FSYS1, .shift = 8, .size = 8 },
+};
+
+static struct clksrc_clk clk_sclk_mmc1 = {
+	.clk		= {
+		.name		= "sclk_mmc",
+		.devname	= "s3c-sdhci.1",
+		.parent         = &clk_dout_mmc1.clk,
+		.enable		= exynos4_clksrc_mask_fsys_ctrl,
+		.ctrlbit	= (1 << 4),
+	},
+	.reg_div = { .reg = S5P_CLKDIV_FSYS1, .shift = 24, .size = 8 },
+};
+
+static struct clksrc_clk clk_sclk_mmc2 = {
+	.clk		= {
+		.name		= "sclk_mmc",
+		.devname	= "s3c-sdhci.2",
+		.parent         = &clk_dout_mmc2.clk,
+		.enable		= exynos4_clksrc_mask_fsys_ctrl,
+		.ctrlbit	= (1 << 8),
+	},
+	.reg_div = { .reg = S5P_CLKDIV_FSYS2, .shift = 8, .size = 8 },
+};
+
+static struct clksrc_clk clk_sclk_mmc3 = {
+	.clk		= {
+		.name		= "sclk_mmc",
+		.devname	= "s3c-sdhci.3",
+		.parent         = &clk_dout_mmc3.clk,
+		.enable		= exynos4_clksrc_mask_fsys_ctrl,
+		.ctrlbit	= (1 << 12),
+	},
+	.reg_div = { .reg = S5P_CLKDIV_FSYS2, .shift = 24, .size = 8 },
+};
+
+static struct clksrc_clk clk_sclk_spi0 = {
+	.clk		= {
+		.name		= "sclk_spi",
+		.devname		= "s3c64xx-spi.0",
+		.enable		= exynos4_clksrc_mask_peril1_ctrl,
+		.ctrlbit		= (1 << 16),
+	},
+	.sources = &clkset_group,
+	.reg_src = { .reg = S5P_CLKSRC_PERIL1, .shift = 16, .size = 4 },
+	.reg_div = { .reg = S5P_CLKDIV_PERIL1, .shift = 0, .size = 4 },
+};
+
+static struct clksrc_clk clk_sclk_spi1 = {
+	.clk		= {
+		.name		= "sclk_spi",
+		.devname		= "s3c64xx-spi.1",
+		.enable		= exynos4_clksrc_mask_peril1_ctrl,
+		.ctrlbit		= (1 << 20),
+	},
+	.sources = &clkset_group,
+	.reg_src = { .reg = S5P_CLKSRC_PERIL1, .shift = 20, .size = 4 },
+	.reg_div = { .reg = S5P_CLKDIV_PERIL1, .shift = 16, .size = 4 },
+};
+
+static struct clksrc_clk clk_sclk_spi2 = {
+	.clk		= {
+		.name		= "sclk_spi",
+		.devname		= "s3c64xx-spi.2",
+		.enable		= exynos4_clksrc_mask_peril1_ctrl,
+		.ctrlbit		= (1 << 24),
+	},
+	.sources = &clkset_group,
+	.reg_src = { .reg = S5P_CLKSRC_PERIL1, .shift = 24, .size = 4 },
+	.reg_div = { .reg = S5P_CLKDIV_PERIL2, .shift = 0, .size = 4 },
+};
+
 /* Clock initialization code */
 static struct clksrc_clk *sysclks[] = {
 	&clk_mout_apll,
@@ -1272,6 +1298,42 @@ static struct clksrc_clk *sysclks[] = {
 	&clk_mout_mfc1,
 };
 
+static struct clk *clk_cdev[] = {
+	&clk_pdma0,
+	&clk_pdma1,
+};
+
+static struct clksrc_clk *clksrc_cdev[] = {
+	&clk_sclk_uart0,
+	&clk_sclk_uart1,
+	&clk_sclk_uart2,
+	&clk_sclk_uart3,
+	&clk_sclk_mmc0,
+	&clk_sclk_mmc1,
+	&clk_sclk_mmc2,
+	&clk_sclk_mmc3,
+	&clk_sclk_spi0,
+	&clk_sclk_spi1,
+	&clk_sclk_spi2,
+
+};
+
+static struct clk_lookup exynos4_clk_lookup[] = {
+	CLKDEV_INIT("exynos4210-uart.0", "clk_uart_baud0", &clk_sclk_uart0.clk),
+	CLKDEV_INIT("exynos4210-uart.1", "clk_uart_baud0", &clk_sclk_uart1.clk),
+	CLKDEV_INIT("exynos4210-uart.2", "clk_uart_baud0", &clk_sclk_uart2.clk),
+	CLKDEV_INIT("exynos4210-uart.3", "clk_uart_baud0", &clk_sclk_uart3.clk),
+	CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.2", &clk_sclk_mmc0.clk),
+	CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.2", &clk_sclk_mmc1.clk),
+	CLKDEV_INIT("s3c-sdhci.2", "mmc_busclk.2", &clk_sclk_mmc2.clk),
+	CLKDEV_INIT("s3c-sdhci.3", "mmc_busclk.2", &clk_sclk_mmc3.clk),
+	CLKDEV_INIT("dma-pl330.0", "apb_pclk", &clk_pdma0),
+	CLKDEV_INIT("dma-pl330.1", "apb_pclk", &clk_pdma1),
+	CLKDEV_INIT("s3c64xx-spi.0", "spi_busclk0", &clk_sclk_spi0.clk),
+	CLKDEV_INIT("s3c64xx-spi.1", "spi_busclk0", &clk_sclk_spi1.clk),
+	CLKDEV_INIT("s3c64xx-spi.2", "spi_busclk0", &clk_sclk_spi2.clk),
+};
+
 static int xtal_rate;
 
 static unsigned long exynos4_fout_apll_get_rate(struct clk *clk)
@@ -1479,11 +1541,19 @@ void __init exynos4_register_clocks(void)
 	for (ptr = 0; ptr < ARRAY_SIZE(sclk_tv); ptr++)
 		s3c_register_clksrc(sclk_tv[ptr], 1);
 
+	for (ptr = 0; ptr < ARRAY_SIZE(clksrc_cdev); ptr++)
+		s3c_register_clksrc(clksrc_cdev[ptr], 1);
+
 	s3c_register_clksrc(clksrcs, ARRAY_SIZE(clksrcs));
 	s3c_register_clocks(init_clocks, ARRAY_SIZE(init_clocks));
 
+	s3c24xx_register_clocks(clk_cdev, ARRAY_SIZE(clk_cdev));
+	for (ptr = 0; ptr < ARRAY_SIZE(clk_cdev); ptr++)
+		s3c_disable_clocks(clk_cdev[ptr], 1);
+
 	s3c_register_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
 	s3c_disable_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
+	clkdev_add_table(exynos4_clk_lookup, ARRAY_SIZE(exynos4_clk_lookup));
 
 	register_syscore_ops(&exynos4_clock_syscore_ops);
 	s3c24xx_register_clock(&dummy_apb_pclk);
diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c
index b6ac6ee658c0..c59e18871006 100644
--- a/arch/arm/mach-exynos/common.c
+++ b/arch/arm/mach-exynos/common.c
@@ -17,8 +17,11 @@
 #include <linux/gpio.h>
 #include <linux/sched.h>
 #include <linux/serial_core.h>
+#include <linux/of.h>
+#include <linux/of_irq.h>
 
 #include <asm/proc-fns.h>
+#include <asm/exception.h>
 #include <asm/hardware/cache-l2x0.h>
 #include <asm/hardware/gic.h>
 #include <asm/mach/map.h>
@@ -43,8 +46,6 @@
 
 #include "common.h"
 
-unsigned int gic_bank_offset __read_mostly;
-
 static const char name_exynos4210[] = "EXYNOS4210";
 static const char name_exynos4212[] = "EXYNOS4212";
 static const char name_exynos4412[] = "EXYNOS4412";
@@ -386,27 +387,26 @@ static void __init combiner_init(unsigned int combiner_nr, void __iomem *base,
 	}
 }
 
-static void exynos4_gic_irq_fix_base(struct irq_data *d)
-{
-	struct gic_chip_data *gic_data = irq_data_get_irq_chip_data(d);
-
-	gic_data->cpu_base = S5P_VA_GIC_CPU +
-			    (gic_bank_offset * smp_processor_id());
-
-	gic_data->dist_base = S5P_VA_GIC_DIST +
-			    (gic_bank_offset * smp_processor_id());
-}
+#ifdef CONFIG_OF
+static const struct of_device_id exynos4_dt_irq_match[] = {
+	{ .compatible = "arm,cortex-a9-gic", .data = gic_of_init, },
+	{},
+};
+#endif
 
 void __init exynos4_init_irq(void)
 {
 	int irq;
+	unsigned int gic_bank_offset;
 
 	gic_bank_offset = soc_is_exynos4412() ? 0x4000 : 0x8000;
 
-	gic_init(0, IRQ_PPI(0), S5P_VA_GIC_DIST, S5P_VA_GIC_CPU);
-	gic_arch_extn.irq_eoi = exynos4_gic_irq_fix_base;
-	gic_arch_extn.irq_unmask = exynos4_gic_irq_fix_base;
-	gic_arch_extn.irq_mask = exynos4_gic_irq_fix_base;
+	if (!of_have_populated_dt())
+		gic_init_bases(0, IRQ_PPI(0), S5P_VA_GIC_DIST, S5P_VA_GIC_CPU, gic_bank_offset);
+#ifdef CONFIG_OF
+	else
+		of_irq_init(exynos4_dt_irq_match);
+#endif
 
 	for (irq = 0; irq < MAX_COMBINER_NR; irq++) {
 
@@ -474,15 +474,6 @@ int __init exynos_init(void)
 	return device_register(&exynos4_dev);
 }
 
-static struct s3c24xx_uart_clksrc exynos4_serial_clocks[] = {
-	[0] = {
-		.name		= "uclk1",
-		.divisor	= 1,
-		.min_baud	= 0,
-		.max_baud	= 0,
-	},
-};
-
 /* uart registration process */
 
 void __init exynos4_init_uarts(struct s3c2410_uartcfg *cfg, int no)
@@ -490,16 +481,10 @@ void __init exynos4_init_uarts(struct s3c2410_uartcfg *cfg, int no)
 	struct s3c2410_uartcfg *tcfg = cfg;
 	u32 ucnt;
 
-	for (ucnt = 0; ucnt < no; ucnt++, tcfg++) {
-		if (!tcfg->clocks) {
-			tcfg->has_fracval = 1;
-			tcfg->clocks = exynos4_serial_clocks;
-			tcfg->clocks_size = ARRAY_SIZE(exynos4_serial_clocks);
-		}
-		tcfg->flags |= NO_NEED_CHECK_CLKSRC;
-	}
+	for (ucnt = 0; ucnt < no; ucnt++, tcfg++)
+		tcfg->has_fracval = 1;
 
-	s3c24xx_init_uartdevs("s5pv210-uart", s5p_uart_resources, cfg, no);
+	s3c24xx_init_uartdevs("exynos4210-uart", s5p_uart_resources, cfg, no);
 }
 
 static DEFINE_SPINLOCK(eint_lock);
diff --git a/arch/arm/mach-exynos/dev-ohci.c b/arch/arm/mach-exynos/dev-ohci.c
new file mode 100644
index 000000000000..b8e75300c77d
--- /dev/null
+++ b/arch/arm/mach-exynos/dev-ohci.c
@@ -0,0 +1,52 @@
+/* linux/arch/arm/mach-exynos/dev-ohci.c
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ *
+ * EXYNOS - OHCI support
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/dma-mapping.h>
+#include <linux/platform_device.h>
+
+#include <mach/irqs.h>
+#include <mach/map.h>
+#include <mach/ohci.h>
+
+#include <plat/devs.h>
+#include <plat/usb-phy.h>
+
+static struct resource exynos4_ohci_resource[] = {
+	[0] = DEFINE_RES_MEM(EXYNOS4_PA_OHCI, SZ_256),
+	[1] = DEFINE_RES_IRQ(IRQ_USB_HOST),
+};
+
+static u64 exynos4_ohci_dma_mask = DMA_BIT_MASK(32);
+
+struct platform_device exynos4_device_ohci = {
+	.name		= "exynos-ohci",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(exynos4_ohci_resource),
+	.resource	= exynos4_ohci_resource,
+	.dev		= {
+		.dma_mask		= &exynos4_ohci_dma_mask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+	}
+};
+
+void __init exynos4_ohci_set_platdata(struct exynos4_ohci_platdata *pd)
+{
+	struct exynos4_ohci_platdata *npd;
+
+	npd = s3c_set_platdata(pd, sizeof(struct exynos4_ohci_platdata),
+			&exynos4_device_ohci);
+
+	if (!npd->phy_init)
+		npd->phy_init = s5p_usb_phy_init;
+	if (!npd->phy_exit)
+		npd->phy_exit = s5p_usb_phy_exit;
+}
diff --git a/arch/arm/mach-exynos/dma.c b/arch/arm/mach-exynos/dma.c
index 9667c61e64fb..b10fcd270f07 100644
--- a/arch/arm/mach-exynos/dma.c
+++ b/arch/arm/mach-exynos/dma.c
@@ -24,6 +24,7 @@
 #include <linux/dma-mapping.h>
 #include <linux/amba/bus.h>
 #include <linux/amba/pl330.h>
+#include <linux/of.h>
 
 #include <asm/irq.h>
 #include <plat/devs.h>
@@ -35,95 +36,42 @@
 
 static u64 dma_dmamask = DMA_BIT_MASK(32);
 
-struct dma_pl330_peri pdma0_peri[28] = {
-	{
-		.peri_id = (u8)DMACH_PCM0_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_PCM0_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_PCM2_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_PCM2_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_MSM_REQ0,
-	}, {
-		.peri_id = (u8)DMACH_MSM_REQ2,
-	}, {
-		.peri_id = (u8)DMACH_SPI0_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_SPI0_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_SPI2_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_SPI2_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_I2S0S_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_I2S0_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_I2S0_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_UART0_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_UART0_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_UART2_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_UART2_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_UART4_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_UART4_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_SLIMBUS0_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_SLIMBUS0_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_SLIMBUS2_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_SLIMBUS2_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_SLIMBUS4_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_SLIMBUS4_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_AC97_MICIN,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_AC97_PCMIN,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_AC97_PCMOUT,
-		.rqtype = MEMTODEV,
-	},
+u8 pdma0_peri[] = {
+	DMACH_PCM0_RX,
+	DMACH_PCM0_TX,
+	DMACH_PCM2_RX,
+	DMACH_PCM2_TX,
+	DMACH_MSM_REQ0,
+	DMACH_MSM_REQ2,
+	DMACH_SPI0_RX,
+	DMACH_SPI0_TX,
+	DMACH_SPI2_RX,
+	DMACH_SPI2_TX,
+	DMACH_I2S0S_TX,
+	DMACH_I2S0_RX,
+	DMACH_I2S0_TX,
+	DMACH_I2S2_RX,
+	DMACH_I2S2_TX,
+	DMACH_UART0_RX,
+	DMACH_UART0_TX,
+	DMACH_UART2_RX,
+	DMACH_UART2_TX,
+	DMACH_UART4_RX,
+	DMACH_UART4_TX,
+	DMACH_SLIMBUS0_RX,
+	DMACH_SLIMBUS0_TX,
+	DMACH_SLIMBUS2_RX,
+	DMACH_SLIMBUS2_TX,
+	DMACH_SLIMBUS4_RX,
+	DMACH_SLIMBUS4_TX,
+	DMACH_AC97_MICIN,
+	DMACH_AC97_PCMIN,
+	DMACH_AC97_PCMOUT,
 };
 
 struct dma_pl330_platdata exynos4_pdma0_pdata = {
 	.nr_valid_peri = ARRAY_SIZE(pdma0_peri),
-	.peri = pdma0_peri,
+	.peri_id = pdma0_peri,
 };
 
 struct amba_device exynos4_device_pdma0 = {
@@ -142,86 +90,37 @@ struct amba_device exynos4_device_pdma0 = {
 	.periphid = 0x00041330,
 };
 
-struct dma_pl330_peri pdma1_peri[25] = {
-	{
-		.peri_id = (u8)DMACH_PCM0_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_PCM0_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_PCM1_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_PCM1_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_MSM_REQ1,
-	}, {
-		.peri_id = (u8)DMACH_MSM_REQ3,
-	}, {
-		.peri_id = (u8)DMACH_SPI1_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_SPI1_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_I2S0S_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_I2S0_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_I2S0_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_I2S1_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_I2S1_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_UART0_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_UART0_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_UART1_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_UART1_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_UART3_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_UART3_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_SLIMBUS1_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_SLIMBUS1_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_SLIMBUS3_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_SLIMBUS3_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_SLIMBUS5_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_SLIMBUS5_TX,
-		.rqtype = MEMTODEV,
-	},
+u8 pdma1_peri[] = {
+	DMACH_PCM0_RX,
+	DMACH_PCM0_TX,
+	DMACH_PCM1_RX,
+	DMACH_PCM1_TX,
+	DMACH_MSM_REQ1,
+	DMACH_MSM_REQ3,
+	DMACH_SPI1_RX,
+	DMACH_SPI1_TX,
+	DMACH_I2S0S_TX,
+	DMACH_I2S0_RX,
+	DMACH_I2S0_TX,
+	DMACH_I2S1_RX,
+	DMACH_I2S1_TX,
+	DMACH_UART0_RX,
+	DMACH_UART0_TX,
+	DMACH_UART1_RX,
+	DMACH_UART1_TX,
+	DMACH_UART3_RX,
+	DMACH_UART3_TX,
+	DMACH_SLIMBUS1_RX,
+	DMACH_SLIMBUS1_TX,
+	DMACH_SLIMBUS3_RX,
+	DMACH_SLIMBUS3_TX,
+	DMACH_SLIMBUS5_RX,
+	DMACH_SLIMBUS5_TX,
 };
 
 struct dma_pl330_platdata exynos4_pdma1_pdata = {
 	.nr_valid_peri = ARRAY_SIZE(pdma1_peri),
-	.peri = pdma1_peri,
+	.peri_id = pdma1_peri,
 };
 
 struct amba_device exynos4_device_pdma1 = {
@@ -242,7 +141,15 @@ struct amba_device exynos4_device_pdma1 = {
 
 static int __init exynos4_dma_init(void)
 {
+	if (of_have_populated_dt())
+		return 0;
+
+	dma_cap_set(DMA_SLAVE, exynos4_pdma0_pdata.cap_mask);
+	dma_cap_set(DMA_CYCLIC, exynos4_pdma0_pdata.cap_mask);
 	amba_device_register(&exynos4_device_pdma0, &iomem_resource);
+
+	dma_cap_set(DMA_SLAVE, exynos4_pdma1_pdata.cap_mask);
+	dma_cap_set(DMA_CYCLIC, exynos4_pdma1_pdata.cap_mask);
 	amba_device_register(&exynos4_device_pdma1, &iomem_resource);
 
 	return 0;
diff --git a/arch/arm/mach-exynos/include/mach/irqs.h b/arch/arm/mach-exynos/include/mach/irqs.h
index dfd4b7eecb90..f77bce04789a 100644
--- a/arch/arm/mach-exynos/include/mach/irqs.h
+++ b/arch/arm/mach-exynos/include/mach/irqs.h
@@ -17,13 +17,13 @@
 
 /* PPI: Private Peripheral Interrupt */
 
-#define IRQ_PPI(x)		S5P_IRQ(x+16)
+#define IRQ_PPI(x)		(x+16)
 
 #define IRQ_MCT_LOCALTIMER	IRQ_PPI(12)
 
 /* SPI: Shared Peripheral Interrupt */
 
-#define IRQ_SPI(x)		S5P_IRQ(x+32)
+#define IRQ_SPI(x)		(x+32)
 
 #define IRQ_EINT0		IRQ_SPI(16)
 #define IRQ_EINT1		IRQ_SPI(17)
@@ -72,6 +72,9 @@
 #define IRQ_IIC5		IRQ_SPI(63)
 #define IRQ_IIC6		IRQ_SPI(64)
 #define IRQ_IIC7		IRQ_SPI(65)
+#define IRQ_SPI0		IRQ_SPI(66)
+#define IRQ_SPI1		IRQ_SPI(67)
+#define IRQ_SPI2		IRQ_SPI(68)
 
 #define IRQ_USB_HOST		IRQ_SPI(70)
 #define IRQ_USB_HSOTG		IRQ_SPI(71)
@@ -163,7 +166,9 @@
 #define IRQ_GPIO2_NR_GROUPS	9
 #define IRQ_GPIO_END		(S5P_GPIOINT_BASE + S5P_GPIOINT_COUNT)
 
+#define IRQ_TIMER_BASE		(IRQ_GPIO_END + 64)
+
 /* Set the default NR_IRQS */
-#define NR_IRQS			(IRQ_GPIO_END + 64)
+#define NR_IRQS			(IRQ_TIMER_BASE + IRQ_TIMER_COUNT)
 
 #endif /* __ASM_ARCH_IRQS_H */
diff --git a/arch/arm/mach-exynos/include/mach/map.h b/arch/arm/mach-exynos/include/mach/map.h
index d1829860a0ec..c754a22a2bb3 100644
--- a/arch/arm/mach-exynos/include/mach/map.h
+++ b/arch/arm/mach-exynos/include/mach/map.h
@@ -87,6 +87,10 @@
 #define EXYNOS4_PA_SYSMMU_TV		0x12E20000
 #define EXYNOS4_PA_SYSMMU_MFC_L		0x13620000
 #define EXYNOS4_PA_SYSMMU_MFC_R		0x13630000
+#define EXYNOS4_PA_SPI0			0x13920000
+#define EXYNOS4_PA_SPI1			0x13930000
+#define EXYNOS4_PA_SPI2			0x13940000
+
 
 #define EXYNOS4_PA_GPIO1		0x11400000
 #define EXYNOS4_PA_GPIO2		0x11000000
@@ -107,6 +111,7 @@
 #define EXYNOS4_PA_SROMC		0x12570000
 
 #define EXYNOS4_PA_EHCI			0x12580000
+#define EXYNOS4_PA_OHCI			0x12590000
 #define EXYNOS4_PA_HSPHY		0x125B0000
 #define EXYNOS4_PA_MFC			0x13400000
 
@@ -148,6 +153,9 @@
 #define S3C_PA_RTC			EXYNOS4_PA_RTC
 #define S3C_PA_WDT			EXYNOS4_PA_WATCHDOG
 #define S3C_PA_UART			EXYNOS4_PA_UART
+#define S3C_PA_SPI0			EXYNOS4_PA_SPI0
+#define S3C_PA_SPI1			EXYNOS4_PA_SPI1
+#define S3C_PA_SPI2			EXYNOS4_PA_SPI2
 
 #define S5P_PA_EHCI			EXYNOS4_PA_EHCI
 #define S5P_PA_FIMC0			EXYNOS4_PA_FIMC0
diff --git a/arch/arm/mach-exynos/include/mach/ohci.h b/arch/arm/mach-exynos/include/mach/ohci.h
new file mode 100644
index 000000000000..c256c595be5e
--- /dev/null
+++ b/arch/arm/mach-exynos/include/mach/ohci.h
@@ -0,0 +1,21 @@
+/*
+ * Copyright (C) 2011 Samsung Electronics Co.Ltd
+ *		http://www.samsung.com/
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#ifndef __MACH_EXYNOS_OHCI_H
+#define __MACH_EXYNOS_OHCI_H
+
+struct exynos4_ohci_platdata {
+	int (*phy_init)(struct platform_device *pdev, int type);
+	int (*phy_exit)(struct platform_device *pdev, int type);
+};
+
+extern void exynos4_ohci_set_platdata(struct exynos4_ohci_platdata *pd);
+
+#endif /* __MACH_EXYNOS_OHCI_H */
diff --git a/arch/arm/mach-exynos/include/mach/spi-clocks.h b/arch/arm/mach-exynos/include/mach/spi-clocks.h
new file mode 100644
index 000000000000..576efdf6d091
--- /dev/null
+++ b/arch/arm/mach-exynos/include/mach/spi-clocks.h
@@ -0,0 +1,16 @@
+/* linux/arch/arm/mach-exynos4/include/mach/spi-clocks.h
+ *
+ * Copyright (C) 2011 Samsung Electronics Co. Ltd.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __ASM_ARCH_SPI_CLKS_H
+#define __ASM_ARCH_SPI_CLKS_H __FILE__
+
+/* Must source from SCLK_SPI */
+#define EXYNOS4_SPI_SRCCLK_SCLK		0
+
+#endif /* __ASM_ARCH_SPI_CLKS_H */
diff --git a/arch/arm/mach-exynos/mach-exynos4-dt.c b/arch/arm/mach-exynos/mach-exynos4-dt.c
new file mode 100644
index 000000000000..85fa02767d67
--- /dev/null
+++ b/arch/arm/mach-exynos/mach-exynos4-dt.c
@@ -0,0 +1,85 @@
+/*
+ * Samsung's Exynos4210 flattened device tree enabled machine
+ *
+ * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com
+ * Copyright (c) 2010-2011 Linaro Ltd.
+ *		www.linaro.org
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/of_platform.h>
+#include <linux/serial_core.h>
+
+#include <asm/mach/arch.h>
+#include <mach/map.h>
+
+#include <plat/cpu.h>
+#include <plat/regs-serial.h>
+#include <plat/exynos4.h>
+
+/*
+ * The following lookup table is used to override device names when devices
+ * are registered from device tree. This is temporarily added to enable
+ * device tree support addition for the Exynos4 architecture.
+ *
+ * For drivers that require platform data to be provided from the machine
+ * file, a platform data pointer can also be supplied along with the
+ * devices names. Usually, the platform data elements that cannot be parsed
+ * from the device tree by the drivers (example: function pointers) are
+ * supplied. But it should be noted that this is a temporary mechanism and
+ * at some point, the drivers should be capable of parsing all the platform
+ * data from the device tree.
+ */
+static const struct of_dev_auxdata exynos4210_auxdata_lookup[] __initconst = {
+	OF_DEV_AUXDATA("samsung,exynos4210-uart", S5P_PA_UART0,
+				"exynos4210-uart.0", NULL),
+	OF_DEV_AUXDATA("samsung,exynos4210-uart", S5P_PA_UART1,
+				"exynos4210-uart.1", NULL),
+	OF_DEV_AUXDATA("samsung,exynos4210-uart", S5P_PA_UART2,
+				"exynos4210-uart.2", NULL),
+	OF_DEV_AUXDATA("samsung,exynos4210-uart", S5P_PA_UART3,
+				"exynos4210-uart.3", NULL),
+	OF_DEV_AUXDATA("samsung,exynos4210-sdhci", EXYNOS4_PA_HSMMC(0),
+				"exynos4-sdhci.0", NULL),
+	OF_DEV_AUXDATA("samsung,exynos4210-sdhci", EXYNOS4_PA_HSMMC(1),
+				"exynos4-sdhci.1", NULL),
+	OF_DEV_AUXDATA("samsung,exynos4210-sdhci", EXYNOS4_PA_HSMMC(2),
+				"exynos4-sdhci.2", NULL),
+	OF_DEV_AUXDATA("samsung,exynos4210-sdhci", EXYNOS4_PA_HSMMC(3),
+				"exynos4-sdhci.3", NULL),
+	OF_DEV_AUXDATA("samsung,s3c2440-i2c", EXYNOS4_PA_IIC(0),
+				"s3c2440-i2c.0", NULL),
+	OF_DEV_AUXDATA("arm,pl330", EXYNOS4_PA_PDMA0, "dma-pl330.0", NULL),
+	OF_DEV_AUXDATA("arm,pl330", EXYNOS4_PA_PDMA1, "dma-pl330.1", NULL),
+	{},
+};
+
+static void __init exynos4210_dt_map_io(void)
+{
+	s5p_init_io(NULL, 0, S5P_VA_CHIPID);
+	s3c24xx_init_clocks(24000000);
+}
+
+static void __init exynos4210_dt_machine_init(void)
+{
+	of_platform_populate(NULL, of_default_bus_match_table,
+				exynos4210_auxdata_lookup, NULL);
+}
+
+static char const *exynos4210_dt_compat[] __initdata = {
+	"samsung,exynos4210",
+	NULL
+};
+
+DT_MACHINE_START(EXYNOS4210_DT, "Samsung Exynos4 (Flattened Device Tree)")
+	/* Maintainer: Thomas Abraham <thomas.abraham@linaro.org> */
+	.init_irq	= exynos4_init_irq,
+	.map_io		= exynos4210_dt_map_io,
+	.init_machine	= exynos4210_dt_machine_init,
+	.timer		= &exynos4_timer,
+	.dt_compat	= exynos4210_dt_compat,
+MACHINE_END
diff --git a/arch/arm/mach-exynos/mach-nuri.c b/arch/arm/mach-exynos/mach-nuri.c
index 635fb97e31ab..b895ec031105 100644
--- a/arch/arm/mach-exynos/mach-nuri.c
+++ b/arch/arm/mach-exynos/mach-nuri.c
@@ -249,13 +249,8 @@ static void nuri_lcd_power_on(struct plat_lcd_data *pd, unsigned int power)
 
 static int nuri_bl_init(struct device *dev)
 {
-	int ret, gpio = EXYNOS4_GPE2(3);
-
-	ret = gpio_request(gpio, "LCD_LDO_EN");
-	if (!ret)
-		gpio_direction_output(gpio, 0);
-
-	return ret;
+	return gpio_request_one(EXYNOS4_GPE2(3), GPIOF_OUT_INIT_LOW,
+				"LCD_LD0_EN");
 }
 
 static int nuri_bl_notify(struct device *dev, int brightness)
diff --git a/arch/arm/mach-exynos/mach-origen.c b/arch/arm/mach-exynos/mach-origen.c
index 586eb995aa96..2b11e046d391 100644
--- a/arch/arm/mach-exynos/mach-origen.c
+++ b/arch/arm/mach-exynos/mach-origen.c
@@ -41,6 +41,7 @@
 #include <plat/fb.h>
 #include <plat/mfc.h>
 
+#include <mach/ohci.h>
 #include <mach/map.h>
 
 #include "common.h"
@@ -485,6 +486,16 @@ static void __init origen_ehci_init(void)
 	s5p_ehci_set_platdata(pdata);
 }
 
+/* USB OHCI */
+static struct exynos4_ohci_platdata origen_ohci_pdata;
+
+static void __init origen_ohci_init(void)
+{
+	struct exynos4_ohci_platdata *pdata = &origen_ohci_pdata;
+
+	exynos4_ohci_set_platdata(pdata);
+}
+
 static struct gpio_keys_button origen_gpio_keys_table[] = {
 	{
 		.code			= KEY_MENU,
@@ -608,6 +619,7 @@ static struct platform_device *origen_devices[] __initdata = {
 	&s5p_device_mfc_l,
 	&s5p_device_mfc_r,
 	&s5p_device_mixer,
+	&exynos4_device_ohci,
 	&exynos4_device_pd[PD_LCD0],
 	&exynos4_device_pd[PD_TV],
 	&exynos4_device_pd[PD_G3D],
@@ -672,6 +684,7 @@ static void __init origen_machine_init(void)
 	s3c_sdhci0_set_platdata(&origen_hsmmc0_pdata);
 
 	origen_ehci_init();
+	origen_ohci_init();
 	clk_xusbxti.rate = 24000000;
 
 	s5p_tv_setup();
diff --git a/arch/arm/mach-exynos/mach-smdkv310.c b/arch/arm/mach-exynos/mach-smdkv310.c
index 5b365613b470..b2c5557f50e4 100644
--- a/arch/arm/mach-exynos/mach-smdkv310.c
+++ b/arch/arm/mach-exynos/mach-smdkv310.c
@@ -42,6 +42,7 @@
 #include <plat/clock.h>
 
 #include <mach/map.h>
+#include <mach/ohci.h>
 
 #include "common.h"
 
@@ -131,9 +132,7 @@ static void lcd_lte480wv_set_power(struct plat_lcd_data *pd,
 		gpio_free(EXYNOS4_GPD0(1));
 #endif
 		/* fire nRESET on power up */
-		gpio_request(EXYNOS4_GPX0(6), "GPX0");
-
-		gpio_direction_output(EXYNOS4_GPX0(6), 1);
+		gpio_request_one(EXYNOS4_GPX0(6), GPIOF_OUT_INIT_HIGH, "GPX0");
 		mdelay(100);
 
 		gpio_set_value(EXYNOS4_GPX0(6), 0);
@@ -247,6 +246,16 @@ static void __init smdkv310_ehci_init(void)
 	s5p_ehci_set_platdata(pdata);
 }
 
+/* USB OHCI */
+static struct exynos4_ohci_platdata smdkv310_ohci_pdata;
+
+static void __init smdkv310_ohci_init(void)
+{
+	struct exynos4_ohci_platdata *pdata = &smdkv310_ohci_pdata;
+
+	exynos4_ohci_set_platdata(pdata);
+}
+
 static struct platform_device *smdkv310_devices[] __initdata = {
 	&s3c_device_hsmmc0,
 	&s3c_device_hsmmc1,
@@ -263,6 +272,7 @@ static struct platform_device *smdkv310_devices[] __initdata = {
 	&s5p_device_fimc3,
 	&exynos4_device_ac97,
 	&exynos4_device_i2s0,
+	&exynos4_device_ohci,
 	&samsung_device_keypad,
 	&s5p_device_mfc,
 	&s5p_device_mfc_l,
@@ -365,6 +375,7 @@ static void __init smdkv310_machine_init(void)
 	s5p_fimd0_set_platdata(&smdkv310_lcd0_pdata);
 
 	smdkv310_ehci_init();
+	smdkv310_ohci_init();
 	clk_xusbxti.rate = 24000000;
 
 	platform_add_devices(smdkv310_devices, ARRAY_SIZE(smdkv310_devices));
diff --git a/arch/arm/mach-exynos/mach-universal_c210.c b/arch/arm/mach-exynos/mach-universal_c210.c
index 52aea972746a..37ac93e8d6d9 100644
--- a/arch/arm/mach-exynos/mach-universal_c210.c
+++ b/arch/arm/mach-exynos/mach-universal_c210.c
@@ -610,8 +610,7 @@ static void __init universal_tsp_init(void)
 
 	/* TSP_LDO_ON: XMDMADDR_11 */
 	gpio = EXYNOS4_GPE2(3);
-	gpio_request(gpio, "TSP_LDO_ON");
-	gpio_direction_output(gpio, 1);
+	gpio_request_one(gpio, GPIOF_OUT_INIT_HIGH, "TSP_LDO_ON");
 	gpio_export(gpio, 0);
 
 	/* TSP_INT: XMDMADDR_7 */
@@ -671,8 +670,7 @@ static void __init universal_touchkey_init(void)
 	i2c_gpio12_devs[0].irq = gpio_to_irq(gpio);
 
 	gpio = EXYNOS4_GPE3(3);			/* XMDMDATA_3 */
-	gpio_request(gpio, "3_TOUCH_EN");
-	gpio_direction_output(gpio, 1);
+	gpio_request_one(gpio, GPIOF_OUT_INIT_HIGH, "3_TOUCH_EN");
 }
 
 static struct s3c2410_platform_i2c universal_i2c0_platdata __initdata = {
@@ -1002,9 +1000,7 @@ static void __init universal_map_io(void)
 void s5p_tv_setup(void)
 {
 	/* direct HPD to HDMI chip */
-	gpio_request(EXYNOS4_GPX3(7), "hpd-plug");
-
-	gpio_direction_input(EXYNOS4_GPX3(7));
+	gpio_request_one(EXYNOS4_GPX3(7), GPIOF_IN, "hpd-plug");
 	s3c_gpio_cfgpin(EXYNOS4_GPX3(7), S3C_GPIO_SFN(0x3));
 	s3c_gpio_setpull(EXYNOS4_GPX3(7), S3C_GPIO_PULL_NONE);
 
diff --git a/arch/arm/mach-exynos/pm.c b/arch/arm/mach-exynos/pm.c
index c4f792dcad19..a4f61a43c7ba 100644
--- a/arch/arm/mach-exynos/pm.c
+++ b/arch/arm/mach-exynos/pm.c
@@ -23,6 +23,7 @@
 
 #include <asm/cacheflush.h>
 #include <asm/hardware/cache-l2x0.h>
+#include <asm/smp_scu.h>
 
 #include <plat/cpu.h>
 #include <plat/pm.h>
@@ -213,27 +214,6 @@ static int exynos4_pm_add(struct device *dev)
 	return 0;
 }
 
-/* This function copy from linux/arch/arm/kernel/smp_scu.c */
-
-void exynos4_scu_enable(void __iomem *scu_base)
-{
-	u32 scu_ctrl;
-
-	scu_ctrl = __raw_readl(scu_base);
-	/* already enabled? */
-	if (scu_ctrl & 1)
-		return;
-
-	scu_ctrl |= 1;
-	__raw_writel(scu_ctrl, scu_base);
-
-	/*
-	 * Ensure that the data accessed by CPU0 before the SCU was
-	 * initialised is visible to the other CPUs.
-	 */
-	flush_cache_all();
-}
-
 static unsigned long pll_base_rate;
 
 static void exynos4_restore_pll(void)
@@ -404,7 +384,7 @@ static void exynos4_pm_resume(void)
 
 	exynos4_restore_pll();
 
-	exynos4_scu_enable(S5P_VA_SCU);
+	scu_enable(S5P_VA_SCU);
 
 #ifdef CONFIG_CACHE_L2X0
 	s3c_pm_do_restore_core(exynos4_l2cc_save, ARRAY_SIZE(exynos4_l2cc_save));
diff --git a/arch/arm/mach-exynos/setup-sdhci.c b/arch/arm/mach-exynos/setup-sdhci.c
deleted file mode 100644
index 92937b410906..000000000000
--- a/arch/arm/mach-exynos/setup-sdhci.c
+++ /dev/null
@@ -1,22 +0,0 @@
-/* linux/arch/arm/mach-exynos4/setup-sdhci.c
- *
- * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
- *		http://www.samsung.com
- *
- * EXYNOS4 - Helper functions for settign up SDHCI device(s) (HSMMC)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
-*/
-
-#include <linux/types.h>
-
-/* clock sources for the mmc bus clock, order as for the ctrl2[5..4] */
-
-char *exynos4_hsmmc_clksrcs[4] = {
-	[0] = NULL,
-	[1] = NULL,
-	[2] = "sclk_mmc",	/* mmc_bus */
-	[3] = NULL,
-};
diff --git a/arch/arm/mach-exynos/setup-spi.c b/arch/arm/mach-exynos/setup-spi.c
new file mode 100644
index 000000000000..833ff40ee0e8
--- /dev/null
+++ b/arch/arm/mach-exynos/setup-spi.c
@@ -0,0 +1,72 @@
+/* linux/arch/arm/mach-exynos4/setup-spi.c
+ *
+ * Copyright (C) 2011 Samsung Electronics Ltd.
+ *             http://www.samsung.com/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/gpio.h>
+#include <linux/platform_device.h>
+
+#include <plat/gpio-cfg.h>
+#include <plat/s3c64xx-spi.h>
+
+#ifdef CONFIG_S3C64XX_DEV_SPI0
+struct s3c64xx_spi_info s3c64xx_spi0_pdata __initdata = {
+	.fifo_lvl_mask	= 0x1ff,
+	.rx_lvl_offset	= 15,
+	.high_speed	= 1,
+	.clk_from_cmu	= true,
+	.tx_st_done	= 25,
+};
+
+int s3c64xx_spi0_cfg_gpio(struct platform_device *dev)
+{
+	s3c_gpio_cfgpin(EXYNOS4_GPB(0), S3C_GPIO_SFN(2));
+	s3c_gpio_setpull(EXYNOS4_GPB(0), S3C_GPIO_PULL_UP);
+	s3c_gpio_cfgall_range(EXYNOS4_GPB(2), 2,
+			      S3C_GPIO_SFN(2), S3C_GPIO_PULL_UP);
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_S3C64XX_DEV_SPI1
+struct s3c64xx_spi_info s3c64xx_spi1_pdata __initdata = {
+	.fifo_lvl_mask	= 0x7f,
+	.rx_lvl_offset	= 15,
+	.high_speed	= 1,
+	.clk_from_cmu	= true,
+	.tx_st_done	= 25,
+};
+
+int s3c64xx_spi1_cfg_gpio(struct platform_device *dev)
+{
+	s3c_gpio_cfgpin(EXYNOS4_GPB(4), S3C_GPIO_SFN(2));
+	s3c_gpio_setpull(EXYNOS4_GPB(4), S3C_GPIO_PULL_UP);
+	s3c_gpio_cfgall_range(EXYNOS4_GPB(6), 2,
+			      S3C_GPIO_SFN(2), S3C_GPIO_PULL_UP);
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_S3C64XX_DEV_SPI2
+struct s3c64xx_spi_info s3c64xx_spi2_pdata __initdata = {
+	.fifo_lvl_mask	= 0x7f,
+	.rx_lvl_offset	= 15,
+	.high_speed	= 1,
+	.clk_from_cmu	= true,
+	.tx_st_done	= 25,
+};
+
+int s3c64xx_spi2_cfg_gpio(struct platform_device *dev)
+{
+	s3c_gpio_cfgpin(EXYNOS4_GPC1(1), S3C_GPIO_SFN(5));
+	s3c_gpio_setpull(EXYNOS4_GPC1(1), S3C_GPIO_PULL_UP);
+	s3c_gpio_cfgall_range(EXYNOS4_GPC1(3), 2,
+			      S3C_GPIO_SFN(5), S3C_GPIO_PULL_UP);
+	return 0;
+}
+#endif
diff --git a/arch/arm/mach-exynos/setup-usb-phy.c b/arch/arm/mach-exynos/setup-usb-phy.c
index 39aca045f660..41743d21e8c6 100644
--- a/arch/arm/mach-exynos/setup-usb-phy.c
+++ b/arch/arm/mach-exynos/setup-usb-phy.c
@@ -19,6 +19,13 @@
 #include <plat/cpu.h>
 #include <plat/usb-phy.h>
 
+static atomic_t host_usage;
+
+static int exynos4_usb_host_phy_is_on(void)
+{
+	return (readl(EXYNOS4_PHYPWR) & PHY1_STD_ANALOG_POWERDOWN) ? 0 : 1;
+}
+
 static int exynos4_usb_phy1_init(struct platform_device *pdev)
 {
 	struct clk *otg_clk;
@@ -27,6 +34,8 @@ static int exynos4_usb_phy1_init(struct platform_device *pdev)
 	u32 rstcon;
 	int err;
 
+	atomic_inc(&host_usage);
+
 	otg_clk = clk_get(&pdev->dev, "otg");
 	if (IS_ERR(otg_clk)) {
 		dev_err(&pdev->dev, "Failed to get otg clock\n");
@@ -39,6 +48,9 @@ static int exynos4_usb_phy1_init(struct platform_device *pdev)
 		return err;
 	}
 
+	if (exynos4_usb_host_phy_is_on())
+		return 0;
+
 	writel(readl(S5P_USBHOST_PHY_CONTROL) | S5P_USBHOST_PHY_ENABLE,
 			S5P_USBHOST_PHY_CONTROL);
 
@@ -95,6 +107,9 @@ static int exynos4_usb_phy1_exit(struct platform_device *pdev)
 	struct clk *otg_clk;
 	int err;
 
+	if (atomic_dec_return(&host_usage) > 0)
+		return 0;
+
 	otg_clk = clk_get(&pdev->dev, "otg");
 	if (IS_ERR(otg_clk)) {
 		dev_err(&pdev->dev, "Failed to get otg clock\n");
diff --git a/arch/arm/mach-imx/Kconfig b/arch/arm/mach-imx/Kconfig
index 35a218cb5c7e..0e6de366c648 100644
--- a/arch/arm/mach-imx/Kconfig
+++ b/arch/arm/mach-imx/Kconfig
@@ -98,6 +98,7 @@ config MACH_SCB9328
 config MACH_APF9328
 	bool "APF9328"
 	select SOC_IMX1
+	select IMX_HAVE_PLATFORM_IMX_I2C
 	select IMX_HAVE_PLATFORM_IMX_UART
 	help
 	  Say Yes here if you are using the Armadeus APF9328 development board
@@ -595,6 +596,7 @@ comment "i.MX6 family:"
 
 config SOC_IMX6Q
 	bool "i.MX6 Quad support"
+	select ARM_CPU_SUSPEND if PM
 	select ARM_GIC
 	select CPU_V7
 	select HAVE_ARM_SCU
diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile
index d97f409ce98b..f5920c24f7d7 100644
--- a/arch/arm/mach-imx/Makefile
+++ b/arch/arm/mach-imx/Makefile
@@ -70,4 +70,8 @@ AFLAGS_head-v7.o :=-Wa,-march=armv7-a
 obj-$(CONFIG_SMP) += platsmp.o
 obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o
 obj-$(CONFIG_LOCAL_TIMERS) += localtimer.o
-obj-$(CONFIG_SOC_IMX6Q) += clock-imx6q.o mach-imx6q.o pm-imx6q.o
+obj-$(CONFIG_SOC_IMX6Q) += clock-imx6q.o mach-imx6q.o
+
+ifeq ($(CONFIG_PM),y)
+obj-$(CONFIG_SOC_IMX6Q) += pm-imx6q.o
+endif
diff --git a/arch/arm/mach-imx/Makefile.boot b/arch/arm/mach-imx/Makefile.boot
index cfede5768aa0..5f4d06af4912 100644
--- a/arch/arm/mach-imx/Makefile.boot
+++ b/arch/arm/mach-imx/Makefile.boot
@@ -25,3 +25,6 @@ initrd_phys-$(CONFIG_SOC_IMX35)	:= 0x80800000
 zreladdr-$(CONFIG_SOC_IMX6Q)	+= 0x10008000
 params_phys-$(CONFIG_SOC_IMX6Q)	:= 0x10000100
 initrd_phys-$(CONFIG_SOC_IMX6Q)	:= 0x10800000
+
+dtb-$(CONFIG_SOC_IMX6Q)	+= imx6q-arm2.dtb \
+			   imx6q-sabrelite.dtb
diff --git a/arch/arm/mach-imx/head-v7.S b/arch/arm/mach-imx/head-v7.S
index 6229efbc70cb..7e49deb128a4 100644
--- a/arch/arm/mach-imx/head-v7.S
+++ b/arch/arm/mach-imx/head-v7.S
@@ -16,7 +16,6 @@
 #include <asm/hardware/cache-l2x0.h>
 
 	.section ".text.head", "ax"
-	__CPUINIT
 
 /*
  * The secondary kernel init calls v7_flush_dcache_all before it enables
@@ -33,6 +32,7 @@
  */
 ENTRY(v7_invalidate_l1)
 	mov	r0, #0
+	mcr	p15, 0, r0, c7, c5, 0	@ invalidate I cache
 	mcr	p15, 2, r0, c0, c0, 0
 	mrc	p15, 1, r0, c0, c0, 0
 
@@ -71,6 +71,7 @@ ENTRY(v7_secondary_startup)
 ENDPROC(v7_secondary_startup)
 #endif
 
+#ifdef CONFIG_PM
 /*
  * The following code is located into the .data section.  This is to
  * allow phys_l2x0_saved_regs to be accessed with a relative load
@@ -79,6 +80,7 @@ ENDPROC(v7_secondary_startup)
 	.data
 	.align
 
+#ifdef CONFIG_CACHE_L2X0
 	.macro	pl310_resume
 	ldr	r2, phys_l2x0_saved_regs
 	ldr	r0, [r2, #L2X0_R_PHY_BASE]	@ get physical base of l2x0
@@ -88,12 +90,17 @@ ENDPROC(v7_secondary_startup)
 	str	r1, [r0, #L2X0_CTRL]		@ re-enable L2
 	.endm
 
+	.globl	phys_l2x0_saved_regs
+phys_l2x0_saved_regs:
+        .long   0
+#else
+	.macro	pl310_resume
+	.endm
+#endif
+
 ENTRY(v7_cpu_resume)
 	bl	v7_invalidate_l1
 	pl310_resume
 	b	cpu_resume
 ENDPROC(v7_cpu_resume)
-
-	.globl	phys_l2x0_saved_regs
-phys_l2x0_saved_regs:
-        .long   0
+#endif
diff --git a/arch/arm/mach-imx/mach-apf9328.c b/arch/arm/mach-imx/mach-apf9328.c
index 146a4f073464..f4a63ee9e217 100644
--- a/arch/arm/mach-imx/mach-apf9328.c
+++ b/arch/arm/mach-imx/mach-apf9328.c
@@ -18,6 +18,7 @@
 #include <linux/platform_device.h>
 #include <linux/mtd/physmap.h>
 #include <linux/dm9000.h>
+#include <linux/i2c.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -41,6 +42,9 @@ static const int apf9328_pins[] __initconst = {
 	PB29_PF_UART2_RTS,
 	PB30_PF_UART2_TXD,
 	PB31_PF_UART2_RXD,
+	/* I2C */
+	PA15_PF_I2C_SDA,
+	PA16_PF_I2C_SCL,
 };
 
 /*
@@ -103,6 +107,10 @@ static const struct imxuart_platform_data uart1_pdata __initconst = {
 	.flags = IMXUART_HAVE_RTSCTS,
 };
 
+static const struct imxi2c_platform_data apf9328_i2c_data __initconst = {
+	.bitrate = 100000,
+};
+
 static struct platform_device *devices[] __initdata = {
 	&apf9328_flash_device,
 	&dm9000x_device,
@@ -119,6 +127,8 @@ static void __init apf9328_init(void)
 	imx1_add_imx_uart0(NULL);
 	imx1_add_imx_uart1(&uart1_pdata);
 
+	imx1_add_imx_i2c(&apf9328_i2c_data);
+
 	platform_add_devices(devices, ARRAY_SIZE(devices));
 }
 
diff --git a/arch/arm/mach-imx/mach-imx6q.c b/arch/arm/mach-imx/mach-imx6q.c
index 05b49bb5d677..c25728106917 100644
--- a/arch/arm/mach-imx/mach-imx6q.c
+++ b/arch/arm/mach-imx/mach-imx6q.c
@@ -19,6 +19,8 @@
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
 #include <linux/of_platform.h>
+#include <linux/phy.h>
+#include <linux/micrel_phy.h>
 #include <asm/hardware/cache-l2x0.h>
 #include <asm/hardware/gic.h>
 #include <asm/mach/arch.h>
@@ -56,8 +58,27 @@ soft:
 	soft_restart(0);
 }
 
+/* For imx6q sabrelite board: set KSZ9021RN RGMII pad skew */
+static int ksz9021rn_phy_fixup(struct phy_device *phydev)
+{
+	/* min rx data delay */
+	phy_write(phydev, 0x0b, 0x8105);
+	phy_write(phydev, 0x0c, 0x0000);
+
+	/* max rx/tx clock delay, min rx/tx control delay */
+	phy_write(phydev, 0x0b, 0x8104);
+	phy_write(phydev, 0x0c, 0xf0f0);
+	phy_write(phydev, 0x0b, 0x104);
+
+	return 0;
+}
+
 static void __init imx6q_init_machine(void)
 {
+	if (of_machine_is_compatible("fsl,imx6q-sabrelite"))
+		phy_register_fixup_for_uid(PHY_ID_KSZ9021, MICREL_PHY_ID_MASK,
+					   ksz9021rn_phy_fixup);
+
 	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
 
 	imx6q_pm_init();
@@ -105,7 +126,8 @@ static struct sys_timer imx6q_timer = {
 };
 
 static const char *imx6q_dt_compat[] __initdata = {
-	"fsl,imx6q-sabreauto",
+	"fsl,imx6q-arm2",
+	"fsl,imx6q-sabrelite",
 	NULL,
 };
 
diff --git a/arch/arm/mach-imx/mach-mx31_3ds.c b/arch/arm/mach-imx/mach-mx31_3ds.c
index 2b565c381347..89c33258639f 100644
--- a/arch/arm/mach-imx/mach-mx31_3ds.c
+++ b/arch/arm/mach-imx/mach-mx31_3ds.c
@@ -492,7 +492,7 @@ static struct mc13xxx_platform_data mc13783_pdata = {
 		.regulators = mx31_3ds_regulators,
 		.num_regulators = ARRAY_SIZE(mx31_3ds_regulators),
 	},
-	.flags  = MC13XXX_USE_TOUCHSCREEN,
+	.flags  = MC13XXX_USE_TOUCHSCREEN | MC13XXX_USE_RTC,
 };
 
 /* SPI */
diff --git a/arch/arm/mach-imx/pm-imx6q.c b/arch/arm/mach-imx/pm-imx6q.c
index f20f191d7cca..f7b0c2b1b905 100644
--- a/arch/arm/mach-imx/pm-imx6q.c
+++ b/arch/arm/mach-imx/pm-imx6q.c
@@ -64,7 +64,9 @@ void __init imx6q_pm_init(void)
 	 * address of the data structure used by l2x0 core to save registers,
 	 * and later restore the necessary ones in imx6q resume entry.
 	 */
+#ifdef CONFIG_CACHE_L2X0
 	phys_l2x0_saved_regs = __pa(&l2x0_saved_regs);
+#endif
 
 	suspend_set_ops(&imx6q_pm_ops);
 }
diff --git a/arch/arm/mach-kirkwood/addr-map.c b/arch/arm/mach-kirkwood/addr-map.c
index 8d03bcef5182..e9a7180863d9 100644
--- a/arch/arm/mach-kirkwood/addr-map.c
+++ b/arch/arm/mach-kirkwood/addr-map.c
@@ -13,12 +13,12 @@
 #include <linux/mbus.h>
 #include <linux/io.h>
 #include <mach/hardware.h>
+#include <plat/addr-map.h>
 #include "common.h"
 
 /*
  * Generic Address Decode Windows bit settings
  */
-#define TARGET_DDR		0
 #define TARGET_DEV_BUS		1
 #define TARGET_SRAM		3
 #define TARGET_PCIE		4
@@ -36,118 +36,55 @@
 #define ATTR_SRAM		0x01
 
 /*
- * Helpers to get DDR bank info
+ * Description of the windows needed by the platform code
  */
-#define DDR_BASE_CS_OFF(n)	(0x0000 + ((n) << 3))
-#define DDR_SIZE_CS_OFF(n)	(0x0004 + ((n) << 3))
-
-/*
- * CPU Address Decode Windows registers
- */
-#define WIN_OFF(n)		(BRIDGE_VIRT_BASE + 0x0000 + ((n) << 4))
-#define WIN_CTRL_OFF		0x0000
-#define WIN_BASE_OFF		0x0004
-#define WIN_REMAP_LO_OFF	0x0008
-#define WIN_REMAP_HI_OFF	0x000c
-
-
-struct mbus_dram_target_info kirkwood_mbus_dram_info;
-
-static int __init cpu_win_can_remap(int win)
-{
-	if (win < 4)
-		return 1;
-
-	return 0;
-}
-
-static void __init setup_cpu_win(int win, u32 base, u32 size,
-				 u8 target, u8 attr, int remap)
-{
-	void __iomem *addr = (void __iomem *)WIN_OFF(win);
-	u32 ctrl;
-
-	base &= 0xffff0000;
-	ctrl = ((size - 1) & 0xffff0000) | (attr << 8) | (target << 4) | 1;
-
-	writel(base, addr + WIN_BASE_OFF);
-	writel(ctrl, addr + WIN_CTRL_OFF);
-	if (cpu_win_can_remap(win)) {
-		if (remap < 0)
-			remap = base;
-
-		writel(remap & 0xffff0000, addr + WIN_REMAP_LO_OFF);
-		writel(0, addr + WIN_REMAP_HI_OFF);
-	}
-}
-
-void __init kirkwood_setup_cpu_mbus(void)
-{
-	void __iomem *addr;
-	int i;
-	int cs;
+static struct __initdata orion_addr_map_cfg addr_map_cfg = {
+	.num_wins = 8,
+	.remappable_wins = 4,
+	.bridge_virt_base = BRIDGE_VIRT_BASE,
+};
 
+static const struct __initdata orion_addr_map_info addr_map_info[] = {
 	/*
-	 * First, disable and clear windows.
+	 * Windows for PCIe IO+MEM space.
 	 */
-	for (i = 0; i < 8; i++) {
-		addr = (void __iomem *)WIN_OFF(i);
-
-		writel(0, addr + WIN_BASE_OFF);
-		writel(0, addr + WIN_CTRL_OFF);
-		if (cpu_win_can_remap(i)) {
-			writel(0, addr + WIN_REMAP_LO_OFF);
-			writel(0, addr + WIN_REMAP_HI_OFF);
-		}
-	}
-
+	{ 0, KIRKWOOD_PCIE_IO_PHYS_BASE, KIRKWOOD_PCIE_IO_SIZE,
+	  TARGET_PCIE, ATTR_PCIE_IO, KIRKWOOD_PCIE_IO_BUS_BASE
+	},
+	{ 1, KIRKWOOD_PCIE_MEM_PHYS_BASE, KIRKWOOD_PCIE_MEM_SIZE,
+	  TARGET_PCIE, ATTR_PCIE_MEM, KIRKWOOD_PCIE_MEM_BUS_BASE
+	},
+	{ 2, KIRKWOOD_PCIE1_IO_PHYS_BASE, KIRKWOOD_PCIE1_IO_SIZE,
+	  TARGET_PCIE, ATTR_PCIE1_IO, KIRKWOOD_PCIE1_IO_BUS_BASE
+	},
+	{ 3, KIRKWOOD_PCIE1_MEM_PHYS_BASE, KIRKWOOD_PCIE1_MEM_SIZE,
+	  TARGET_PCIE, ATTR_PCIE1_MEM, KIRKWOOD_PCIE1_MEM_BUS_BASE
+	},
 	/*
-	 * Setup windows for PCIe IO+MEM space.
+	 * Window for NAND controller.
 	 */
-	setup_cpu_win(0, KIRKWOOD_PCIE_IO_PHYS_BASE, KIRKWOOD_PCIE_IO_SIZE,
-		      TARGET_PCIE, ATTR_PCIE_IO, KIRKWOOD_PCIE_IO_BUS_BASE);
-	setup_cpu_win(1, KIRKWOOD_PCIE_MEM_PHYS_BASE, KIRKWOOD_PCIE_MEM_SIZE,
-		      TARGET_PCIE, ATTR_PCIE_MEM, KIRKWOOD_PCIE_MEM_BUS_BASE);
-	setup_cpu_win(2, KIRKWOOD_PCIE1_IO_PHYS_BASE, KIRKWOOD_PCIE1_IO_SIZE,
-		      TARGET_PCIE, ATTR_PCIE1_IO, KIRKWOOD_PCIE1_IO_BUS_BASE);
-	setup_cpu_win(3, KIRKWOOD_PCIE1_MEM_PHYS_BASE, KIRKWOOD_PCIE1_MEM_SIZE,
-		      TARGET_PCIE, ATTR_PCIE1_MEM, KIRKWOOD_PCIE1_MEM_BUS_BASE);
-
+	{ 4, KIRKWOOD_NAND_MEM_PHYS_BASE, KIRKWOOD_NAND_MEM_SIZE,
+	  TARGET_DEV_BUS, ATTR_DEV_NAND, -1
+	},
 	/*
-	 * Setup window for NAND controller.
+	 * Window for SRAM.
 	 */
-	setup_cpu_win(4, KIRKWOOD_NAND_MEM_PHYS_BASE, KIRKWOOD_NAND_MEM_SIZE,
-		      TARGET_DEV_BUS, ATTR_DEV_NAND, -1);
+	{ 5, KIRKWOOD_SRAM_PHYS_BASE, KIRKWOOD_SRAM_SIZE,
+	  TARGET_SRAM, ATTR_SRAM, -1
+	},
+	/* End marker */
+	{ -1, 0, 0, 0, 0, 0 }
+};
 
+void __init kirkwood_setup_cpu_mbus(void)
+{
 	/*
-	 * Setup window for SRAM.
+	 * Disable, clear and configure windows.
 	 */
-	setup_cpu_win(5, KIRKWOOD_SRAM_PHYS_BASE, KIRKWOOD_SRAM_SIZE,
-		      TARGET_SRAM, ATTR_SRAM, -1);
+	orion_config_wins(&addr_map_cfg, addr_map_info);
 
 	/*
 	 * Setup MBUS dram target info.
 	 */
-	kirkwood_mbus_dram_info.mbus_dram_target_id = TARGET_DDR;
-
-	addr = (void __iomem *)DDR_WINDOW_CPU_BASE;
-
-	for (i = 0, cs = 0; i < 4; i++) {
-		u32 base = readl(addr + DDR_BASE_CS_OFF(i));
-		u32 size = readl(addr + DDR_SIZE_CS_OFF(i));
-
-		/*
-		 * Chip select enabled?
-		 */
-		if (size & 1) {
-			struct mbus_dram_window *w;
-
-			w = &kirkwood_mbus_dram_info.cs[cs++];
-			w->cs_index = i;
-			w->mbus_attr = 0xf & ~(1 << i);
-			w->base = base & 0xffff0000;
-			w->size = (size | 0x0000ffff) + 1;
-		}
-	}
-	kirkwood_mbus_dram_info.num_cs = cs;
+	orion_setup_cpu_mbus_target(&addr_map_cfg, DDR_WINDOW_CPU_BASE);
 }
diff --git a/arch/arm/mach-kirkwood/common.c b/arch/arm/mach-kirkwood/common.c
index 0bff4a916231..cc15426787b1 100644
--- a/arch/arm/mach-kirkwood/common.c
+++ b/arch/arm/mach-kirkwood/common.c
@@ -12,7 +12,6 @@
 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/serial_8250.h>
-#include <linux/mbus.h>
 #include <linux/ata_platform.h>
 #include <linux/mtd/nand.h>
 #include <linux/dma-mapping.h>
@@ -30,6 +29,7 @@
 #include <plat/orion_nand.h>
 #include <plat/common.h>
 #include <plat/time.h>
+#include <plat/addr-map.h>
 #include "common.h"
 
 /*****************************************************************************
@@ -73,8 +73,7 @@ unsigned int kirkwood_clk_ctrl = CGC_DUNIT | CGC_RESERVED;
 void __init kirkwood_ehci_init(void)
 {
 	kirkwood_clk_ctrl |= CGC_USB0;
-	orion_ehci_init(&kirkwood_mbus_dram_info,
-			USB_PHYS_BASE, IRQ_KIRKWOOD_USB);
+	orion_ehci_init(USB_PHYS_BASE, IRQ_KIRKWOOD_USB);
 }
 
 
@@ -85,7 +84,7 @@ void __init kirkwood_ge00_init(struct mv643xx_eth_platform_data *eth_data)
 {
 	kirkwood_clk_ctrl |= CGC_GE0;
 
-	orion_ge00_init(eth_data, &kirkwood_mbus_dram_info,
+	orion_ge00_init(eth_data,
 			GE00_PHYS_BASE, IRQ_KIRKWOOD_GE00_SUM,
 			IRQ_KIRKWOOD_GE00_ERR, kirkwood_tclk);
 }
@@ -99,7 +98,7 @@ void __init kirkwood_ge01_init(struct mv643xx_eth_platform_data *eth_data)
 
 	kirkwood_clk_ctrl |= CGC_GE1;
 
-	orion_ge01_init(eth_data, &kirkwood_mbus_dram_info,
+	orion_ge01_init(eth_data,
 			GE01_PHYS_BASE, IRQ_KIRKWOOD_GE01_SUM,
 			IRQ_KIRKWOOD_GE01_ERR, kirkwood_tclk);
 }
@@ -178,8 +177,7 @@ void __init kirkwood_sata_init(struct mv_sata_platform_data *sata_data)
 	if (sata_data->n_ports > 1)
 		kirkwood_clk_ctrl |= CGC_SATA1;
 
-	orion_sata_init(sata_data, &kirkwood_mbus_dram_info,
-			SATA_PHYS_BASE, IRQ_KIRKWOOD_SATA);
+	orion_sata_init(sata_data, SATA_PHYS_BASE, IRQ_KIRKWOOD_SATA);
 }
 
 
@@ -221,7 +219,6 @@ void __init kirkwood_sdio_init(struct mvsdio_platform_data *mvsdio_data)
 		mvsdio_data->clock = 100000000;
 	else
 		mvsdio_data->clock = 200000000;
-	mvsdio_data->dram = &kirkwood_mbus_dram_info;
 	kirkwood_clk_ctrl |= CGC_SDIO;
 	kirkwood_sdio.dev.platform_data = mvsdio_data;
 	platform_device_register(&kirkwood_sdio);
@@ -285,8 +282,7 @@ static void __init kirkwood_xor0_init(void)
 {
 	kirkwood_clk_ctrl |= CGC_XOR0;
 
-	orion_xor0_init(&kirkwood_mbus_dram_info,
-			XOR0_PHYS_BASE, XOR0_HIGH_PHYS_BASE,
+	orion_xor0_init(XOR0_PHYS_BASE, XOR0_HIGH_PHYS_BASE,
 			IRQ_KIRKWOOD_XOR_00, IRQ_KIRKWOOD_XOR_01);
 }
 
@@ -364,7 +360,6 @@ static struct resource kirkwood_i2s_resources[] = {
 };
 
 static struct kirkwood_asoc_platform_data kirkwood_i2s_data = {
-	.dram        = &kirkwood_mbus_dram_info,
 	.burst       = 128,
 };
 
@@ -430,6 +425,8 @@ static char * __init kirkwood_id(void)
 	} else if (dev == MV88F6282_DEV_ID) {
 		if (rev == MV88F6282_REV_A0)
 			return "MV88F6282-Rev-A0";
+		else if (rev == MV88F6282_REV_A1)
+			return "MV88F6282-Rev-A1";
 		else
 			return "MV88F6282-Rev-Unsupported";
 	} else {
diff --git a/arch/arm/mach-kirkwood/common.h b/arch/arm/mach-kirkwood/common.h
index 1529280246d6..9071a397136d 100644
--- a/arch/arm/mach-kirkwood/common.h
+++ b/arch/arm/mach-kirkwood/common.h
@@ -30,7 +30,6 @@ void kirkwood_init(void);
 void kirkwood_init_early(void);
 void kirkwood_init_irq(void);
 
-extern struct mbus_dram_target_info kirkwood_mbus_dram_info;
 void kirkwood_setup_cpu_mbus(void);
 
 void kirkwood_enable_pcie(void);
diff --git a/arch/arm/mach-kirkwood/include/mach/kirkwood.h b/arch/arm/mach-kirkwood/include/mach/kirkwood.h
index 010bdeb4ac5f..fede3d503efa 100644
--- a/arch/arm/mach-kirkwood/include/mach/kirkwood.h
+++ b/arch/arm/mach-kirkwood/include/mach/kirkwood.h
@@ -135,4 +135,5 @@
 
 #define MV88F6282_DEV_ID	0x6282
 #define MV88F6282_REV_A0	0
+#define MV88F6282_REV_A1	1
 #endif
diff --git a/arch/arm/mach-kirkwood/mpp.c b/arch/arm/mach-kirkwood/mpp.c
index cc431fa22ccb..0c6ad63f10c7 100644
--- a/arch/arm/mach-kirkwood/mpp.c
+++ b/arch/arm/mach-kirkwood/mpp.c
@@ -10,7 +10,6 @@
 #include <linux/gpio.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <linux/mbus.h>
 #include <linux/io.h>
 #include <mach/hardware.h>
 #include <plat/mpp.h>
diff --git a/arch/arm/mach-kirkwood/mpp.h b/arch/arm/mach-kirkwood/mpp.h
index ac787957e2d9..e8fda45c0736 100644
--- a/arch/arm/mach-kirkwood/mpp.h
+++ b/arch/arm/mach-kirkwood/mpp.h
@@ -102,6 +102,7 @@
 #define MPP11_SATA0_ACTn	MPP( 11, 0x5, 0, 1, 0,   1,   1,   1,   1 )
 
 #define MPP12_GPO		MPP( 12, 0x0, 0, 1, 1,   1,   1,   1,   1 )
+#define MPP12_GPIO		MPP( 12, 0x0, 1, 1, 0,   0,   0,   1,   0 )
 #define MPP12_SD_CLK		MPP( 12, 0x1, 0, 1, 1,   1,   1,   1,   1 )
 #define MPP12_AU_SPDIF0		MPP( 12, 0xa, 0, 1, 0,   0,   0,   0,   1 )
 #define MPP12_SPI_MOSI		MPP( 12, 0xb, 0, 1, 0,   0,   0,   0,   1 )
diff --git a/arch/arm/mach-kirkwood/pcie.c b/arch/arm/mach-kirkwood/pcie.c
index 74b992d810ea..fb451bfe478b 100644
--- a/arch/arm/mach-kirkwood/pcie.c
+++ b/arch/arm/mach-kirkwood/pcie.c
@@ -11,12 +11,12 @@
 #include <linux/kernel.h>
 #include <linux/pci.h>
 #include <linux/slab.h>
-#include <linux/mbus.h>
 #include <video/vga.h>
 #include <asm/irq.h>
 #include <asm/mach/pci.h>
 #include <plat/pcie.h>
 #include <mach/bridge-regs.h>
+#include <plat/addr-map.h>
 #include "common.h"
 
 void kirkwood_enable_pcie(void)
@@ -208,7 +208,7 @@ static int __init kirkwood_pcie_setup(int nr, struct pci_sys_data *sys)
 	 */
 	orion_pcie_set_local_bus_nr(pp->base, sys->busnr);
 
-	orion_pcie_setup(pp->base, &kirkwood_mbus_dram_info);
+	orion_pcie_setup(pp->base);
 
 	return 1;
 }
diff --git a/arch/arm/mach-mmp/aspenite.c b/arch/arm/mach-mmp/aspenite.c
index 3e6dfab59ef6..17cb76060125 100644
--- a/arch/arm/mach-mmp/aspenite.c
+++ b/arch/arm/mach-mmp/aspenite.c
@@ -120,8 +120,8 @@ static struct resource smc91x_resources[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= gpio_to_irq(27),
-		.end	= gpio_to_irq(27),
+		.start	= MMP_GPIO_TO_IRQ(27),
+		.end	= MMP_GPIO_TO_IRQ(27),
 		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	}
 };
@@ -232,6 +232,7 @@ static void __init common_init(void)
 	pxa168_add_nand(&aspenite_nand_info);
 	pxa168_add_fb(&aspenite_lcd_info);
 	pxa168_add_keypad(&aspenite_keypad_info);
+	platform_device_register(&pxa168_device_gpio);
 
 	/* off-chip devices */
 	platform_device_register(&smc91x_device);
diff --git a/arch/arm/mach-mmp/avengers_lite.c b/arch/arm/mach-mmp/avengers_lite.c
index 8de3dc6131a4..b148a9dc5a44 100644
--- a/arch/arm/mach-mmp/avengers_lite.c
+++ b/arch/arm/mach-mmp/avengers_lite.c
@@ -38,6 +38,7 @@ static void __init avengers_lite_init(void)
 
 	/* on-chip devices */
 	pxa168_add_uart(2);
+	platform_device_register(&pxa168_device_gpio);
 }
 
 MACHINE_START(AVENGERS_LITE, "PXA168 Avengers lite Development Platform")
diff --git a/arch/arm/mach-mmp/brownstone.c b/arch/arm/mach-mmp/brownstone.c
index e16f04b39b15..d839fe6421e6 100644
--- a/arch/arm/mach-mmp/brownstone.c
+++ b/arch/arm/mach-mmp/brownstone.c
@@ -202,6 +202,7 @@ static void __init brownstone_init(void)
 	/* on-chip devices */
 	mmp2_add_uart(1);
 	mmp2_add_uart(3);
+	platform_device_register(&mmp2_device_gpio);
 	mmp2_add_twsi(1, NULL, ARRAY_AND_SIZE(brownstone_twsi1_info));
 	mmp2_add_sdhost(0, &mmp2_sdh_platdata_mmc0); /* SD/MMC */
 	mmp2_add_sdhost(2, &mmp2_sdh_platdata_mmc2); /* eMMC */
diff --git a/arch/arm/mach-mmp/flint.c b/arch/arm/mach-mmp/flint.c
index 5a6a27a6cfd0..2ee8cd7829dd 100644
--- a/arch/arm/mach-mmp/flint.c
+++ b/arch/arm/mach-mmp/flint.c
@@ -87,8 +87,8 @@ static struct resource smc91x_resources[] = {
 		.flags  = IORESOURCE_MEM,
 	},
 	[1] = {
-		.start  = gpio_to_irq(155),
-		.end    = gpio_to_irq(155),
+		.start  = MMP_GPIO_TO_IRQ(155),
+		.end    = MMP_GPIO_TO_IRQ(155),
 		.flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	}
 };
@@ -110,6 +110,7 @@ static void __init flint_init(void)
 	/* on-chip devices */
 	mmp2_add_uart(1);
 	mmp2_add_uart(2);
+	platform_device_register(&mmp2_device_gpio);
 
 	/* off-chip devices */
 	platform_device_register(&smc91x_device);
diff --git a/arch/arm/mach-mmp/gplugd.c b/arch/arm/mach-mmp/gplugd.c
index 1e3abbe37cac..87765467de63 100644
--- a/arch/arm/mach-mmp/gplugd.c
+++ b/arch/arm/mach-mmp/gplugd.c
@@ -184,6 +184,7 @@ static void __init gplugd_init(void)
 	pxa168_add_uart(3);
 	pxa168_add_ssp(1);
 	pxa168_add_twsi(0, NULL, ARRAY_AND_SIZE(gplugd_i2c_board_info));
+	platform_device_register(&pxa168_device_gpio);
 
 	pxa168_add_eth(&gplugd_eth_platform_data);
 }
diff --git a/arch/arm/mach-mmp/include/mach/gpio-pxa.h b/arch/arm/mach-mmp/include/mach/gpio-pxa.h
index 99b4ce1b6562..0e135a599f3e 100644
--- a/arch/arm/mach-mmp/include/mach/gpio-pxa.h
+++ b/arch/arm/mach-mmp/include/mach/gpio-pxa.h
@@ -2,6 +2,7 @@
 #define __ASM_MACH_GPIO_PXA_H
 
 #include <mach/addr-map.h>
+#include <mach/cputype.h>
 #include <mach/irqs.h>
 
 #define GPIO_REGS_VIRT	(APB_VIRT_BASE + 0x19000)
@@ -9,8 +10,6 @@
 #define BANK_OFF(n)	(((n) < 3) ? (n) << 2 : 0x100 + (((n) - 3) << 2))
 #define GPIO_REG(x)	(*(volatile u32 *)(GPIO_REGS_VIRT + (x)))
 
-#define NR_BUILTIN_GPIO		IRQ_GPIO_NUM
-
 #define gpio_to_bank(gpio)	((gpio) >> 5)
 
 /* NOTE: these macros are defined here to make optimization of
diff --git a/arch/arm/mach-mmp/include/mach/gpio.h b/arch/arm/mach-mmp/include/mach/gpio.h
index 681262359d1c..13219ebf5128 100644
--- a/arch/arm/mach-mmp/include/mach/gpio.h
+++ b/arch/arm/mach-mmp/include/mach/gpio.h
@@ -3,11 +3,6 @@
 
 #include <asm-generic/gpio.h>
 
-#define gpio_to_irq(gpio)	(IRQ_GPIO_START + (gpio))
-#define irq_to_gpio(irq)	((irq) - IRQ_GPIO_START)
+#include <mach/cputype.h>
 
-#define __gpio_is_inverted(gpio)	(0)
-#define __gpio_is_occupied(gpio)	(0)
-
-#include <plat/gpio.h>
 #endif /* __ASM_MACH_GPIO_H */
diff --git a/arch/arm/mach-mmp/include/mach/irqs.h b/arch/arm/mach-mmp/include/mach/irqs.h
index a09d328e2ddd..34635a0bbb59 100644
--- a/arch/arm/mach-mmp/include/mach/irqs.h
+++ b/arch/arm/mach-mmp/include/mach/irqs.h
@@ -219,10 +219,10 @@
 #define IRQ_MMP2_MUX_END		(IRQ_MMP2_SSP_BASE + 2)
 
 #define IRQ_GPIO_START			128
-#define IRQ_GPIO_NUM			192
-#define IRQ_GPIO(x)			(IRQ_GPIO_START + (x))
+#define MMP_NR_BUILTIN_GPIO		192
+#define MMP_GPIO_TO_IRQ(gpio)		(IRQ_GPIO_START + (gpio))
 
-#define IRQ_BOARD_START			(IRQ_GPIO_START + IRQ_GPIO_NUM)
+#define IRQ_BOARD_START			(IRQ_GPIO_START + MMP_NR_BUILTIN_GPIO)
 
 #define NR_IRQS				(IRQ_BOARD_START)
 
diff --git a/arch/arm/mach-mmp/include/mach/mmp2.h b/arch/arm/mach-mmp/include/mach/mmp2.h
index 2f7b2d3c2b18..cba22fed2265 100644
--- a/arch/arm/mach-mmp/include/mach/mmp2.h
+++ b/arch/arm/mach-mmp/include/mach/mmp2.h
@@ -32,6 +32,8 @@ extern struct pxa_device_desc mmp2_device_sdh3;
 extern struct pxa_device_desc mmp2_device_asram;
 extern struct pxa_device_desc mmp2_device_isram;
 
+extern struct platform_device mmp2_device_gpio;
+
 static inline int mmp2_add_uart(int id)
 {
 	struct pxa_device_desc *d = NULL;
diff --git a/arch/arm/mach-mmp/include/mach/pxa168.h b/arch/arm/mach-mmp/include/mach/pxa168.h
index a677aa732c26..dc03d580a06d 100644
--- a/arch/arm/mach-mmp/include/mach/pxa168.h
+++ b/arch/arm/mach-mmp/include/mach/pxa168.h
@@ -43,6 +43,8 @@ struct pxa168_usb_pdata {
 /* pdata can be NULL */
 int __init pxa168_add_usb_host(struct pxa168_usb_pdata *pdata);
 
+extern struct platform_device pxa168_device_gpio;
+
 static inline int pxa168_add_uart(int id)
 {
 	struct pxa_device_desc *d = NULL;
diff --git a/arch/arm/mach-mmp/include/mach/pxa910.h b/arch/arm/mach-mmp/include/mach/pxa910.h
index 91be75591398..4de13abef7bb 100644
--- a/arch/arm/mach-mmp/include/mach/pxa910.h
+++ b/arch/arm/mach-mmp/include/mach/pxa910.h
@@ -21,6 +21,8 @@ extern struct pxa_device_desc pxa910_device_pwm3;
 extern struct pxa_device_desc pxa910_device_pwm4;
 extern struct pxa_device_desc pxa910_device_nand;
 
+extern struct platform_device pxa910_device_gpio;
+
 static inline int pxa910_add_uart(int id)
 {
 	struct pxa_device_desc *d = NULL;
diff --git a/arch/arm/mach-mmp/mmp2.c b/arch/arm/mach-mmp/mmp2.c
index 5dd1d4a6aeb9..617c60a170a4 100644
--- a/arch/arm/mach-mmp/mmp2.c
+++ b/arch/arm/mach-mmp/mmp2.c
@@ -13,6 +13,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/io.h>
+#include <linux/platform_device.h>
 
 #include <asm/hardware/cache-tauros2.h>
 
@@ -24,7 +25,6 @@
 #include <mach/irqs.h>
 #include <mach/dma.h>
 #include <mach/mfp.h>
-#include <mach/gpio-pxa.h>
 #include <mach/devices.h>
 #include <mach/mmp2.h>
 
@@ -33,8 +33,6 @@
 
 #define MFPR_VIRT_BASE	(APB_VIRT_BASE + 0x1e000)
 
-#define APMASK(i)	(GPIO_REGS_VIRT + BANK_OFF(i) + 0x9c)
-
 static struct mfp_addr_map mmp2_addr_map[] __initdata = {
 
 	MFP_ADDR_X(GPIO0, GPIO58, 0x54),
@@ -95,24 +93,9 @@ void mmp2_clear_pmic_int(void)
 	__raw_writel(data, mfpr_pmic);
 }
 
-static void __init mmp2_init_gpio(void)
-{
-	int i;
-
-	/* enable GPIO clock */
-	__raw_writel(APBC_APBCLK | APBC_FNCLK, APBC_MMP2_GPIO);
-
-	/* unmask GPIO edge detection for all 6 banks -- APMASKx */
-	for (i = 0; i < 6; i++)
-		__raw_writel(0xffffffff, APMASK(i));
-
-	pxa_init_gpio(IRQ_MMP2_GPIO, 0, 167, NULL);
-}
-
 void __init mmp2_init_irq(void)
 {
 	mmp2_init_icu();
-	mmp2_init_gpio();
 }
 
 static void sdhc_clk_enable(struct clk *clk)
@@ -149,6 +132,7 @@ static APBC_CLK(twsi3, MMP2_TWSI3, 0, 26000000);
 static APBC_CLK(twsi4, MMP2_TWSI4, 0, 26000000);
 static APBC_CLK(twsi5, MMP2_TWSI5, 0, 26000000);
 static APBC_CLK(twsi6, MMP2_TWSI6, 0, 26000000);
+static APBC_CLK(gpio, MMP2_GPIO, 0, 26000000);
 
 static APMU_CLK(nand, NAND, 0xbf, 100000000);
 static APMU_CLK_OPS(sdh0, SDH0, 0x1b, 200000000, &sdhc_clk_ops);
@@ -168,6 +152,7 @@ static struct clk_lookup mmp2_clkregs[] = {
 	INIT_CLKREG(&clk_twsi5, "pxa2xx-i2c.4", NULL),
 	INIT_CLKREG(&clk_twsi6, "pxa2xx-i2c.5", NULL),
 	INIT_CLKREG(&clk_nand, "pxa3xx-nand", NULL),
+	INIT_CLKREG(&clk_gpio, "pxa-gpio", NULL),
 	INIT_CLKREG(&clk_sdh0, "sdhci-pxav3.0", "PXA-SDHCLK"),
 	INIT_CLKREG(&clk_sdh1, "sdhci-pxav3.1", "PXA-SDHCLK"),
 	INIT_CLKREG(&clk_sdh2, "sdhci-pxav3.2", "PXA-SDHCLK"),
@@ -230,3 +215,21 @@ MMP2_DEVICE(asram, "asram", -1, NONE, 0xe0000000, 0x4000);
 /* 0xd1000000 ~ 0xd101ffff is reserved for secure processor */
 MMP2_DEVICE(isram, "isram", -1, NONE, 0xd1020000, 0x18000);
 
+struct resource mmp2_resource_gpio[] = {
+	{
+		.start	= 0xd4019000,
+		.end	= 0xd4019fff,
+		.flags	= IORESOURCE_MEM,
+	}, {
+		.start	= IRQ_MMP2_GPIO,
+		.end	= IRQ_MMP2_GPIO,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+struct platform_device mmp2_device_gpio = {
+	.name		= "pxa-gpio",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(mmp2_resource_gpio),
+	.resource	= mmp2_resource_gpio,
+};
diff --git a/arch/arm/mach-mmp/pxa168.c b/arch/arm/mach-mmp/pxa168.c
index 13f23867a86a..7bc17eaa12eb 100644
--- a/arch/arm/mach-mmp/pxa168.c
+++ b/arch/arm/mach-mmp/pxa168.c
@@ -13,6 +13,7 @@
 #include <linux/list.h>
 #include <linux/io.h>
 #include <linux/clk.h>
+#include <linux/platform_device.h>
 
 #include <asm/mach/time.h>
 #include <mach/addr-map.h>
@@ -20,7 +21,6 @@
 #include <mach/regs-apbc.h>
 #include <mach/regs-apmu.h>
 #include <mach/irqs.h>
-#include <mach/gpio-pxa.h>
 #include <mach/dma.h>
 #include <mach/devices.h>
 #include <mach/mfp.h>
@@ -43,26 +43,9 @@ static struct mfp_addr_map pxa168_mfp_addr_map[] __initdata =
 	MFP_ADDR_END,
 };
 
-#define APMASK(i)	(GPIO_REGS_VIRT + BANK_OFF(i) + 0x09c)
-
-static void __init pxa168_init_gpio(void)
-{
-	int i;
-
-	/* enable GPIO clock */
-	__raw_writel(APBC_APBCLK | APBC_FNCLK, APBC_PXA168_GPIO);
-
-	/* unmask GPIO edge detection for all 4 banks - APMASKx */
-	for (i = 0; i < 4; i++)
-		__raw_writel(0xffffffff, APMASK(i));
-
-	pxa_init_gpio(IRQ_PXA168_GPIOX, 0, 127, NULL);
-}
-
 void __init pxa168_init_irq(void)
 {
 	icu_init_irq();
-	pxa168_init_gpio();
 }
 
 /* APB peripheral clocks */
@@ -80,6 +63,7 @@ static APBC_CLK(ssp2, PXA168_SSP2, 4, 0);
 static APBC_CLK(ssp3, PXA168_SSP3, 4, 0);
 static APBC_CLK(ssp4, PXA168_SSP4, 4, 0);
 static APBC_CLK(ssp5, PXA168_SSP5, 4, 0);
+static APBC_CLK(gpio, PXA168_GPIO, 0, 13000000);
 static APBC_CLK(keypad, PXA168_KPC, 0, 32000);
 
 static APMU_CLK(nand, NAND, 0x19b, 156000000);
@@ -105,6 +89,7 @@ static struct clk_lookup pxa168_clkregs[] = {
 	INIT_CLKREG(&clk_ssp5, "pxa168-ssp.4", NULL),
 	INIT_CLKREG(&clk_nand, "pxa3xx-nand", NULL),
 	INIT_CLKREG(&clk_lcd, "pxa168-fb", NULL),
+	INIT_CLKREG(&clk_gpio, "pxa-gpio", NULL),
 	INIT_CLKREG(&clk_keypad, "pxa27x-keypad", NULL),
 	INIT_CLKREG(&clk_eth, "pxa168-eth", "MFUCLK"),
 	INIT_CLKREG(&clk_usb, "pxa168-ehci", "PXA168-USBCLK"),
@@ -174,6 +159,25 @@ PXA168_DEVICE(fb, "pxa168-fb", -1, LCD, 0xd420b000, 0x1c8);
 PXA168_DEVICE(keypad, "pxa27x-keypad", -1, KEYPAD, 0xd4012000, 0x4c);
 PXA168_DEVICE(eth, "pxa168-eth", -1, MFU, 0xc0800000, 0x0fff);
 
+struct resource pxa168_resource_gpio[] = {
+	{
+		.start	= 0xd4019000,
+		.end	= 0xd4019fff,
+		.flags	= IORESOURCE_MEM,
+	}, {
+		.start	= IRQ_PXA168_GPIOX,
+		.end	= IRQ_PXA168_GPIOX,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+struct platform_device pxa168_device_gpio = {
+	.name		= "pxa-gpio",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(pxa168_resource_gpio),
+	.resource	= pxa168_resource_gpio,
+};
+
 struct resource pxa168_usb_host_resources[] = {
 	/* USB Host conroller register base */
 	[0] = {
diff --git a/arch/arm/mach-mmp/pxa910.c b/arch/arm/mach-mmp/pxa910.c
index 4ebbfbba39fc..3241a25784d0 100644
--- a/arch/arm/mach-mmp/pxa910.c
+++ b/arch/arm/mach-mmp/pxa910.c
@@ -12,6 +12,7 @@
 #include <linux/init.h>
 #include <linux/list.h>
 #include <linux/io.h>
+#include <linux/platform_device.h>
 
 #include <asm/mach/time.h>
 #include <mach/addr-map.h>
@@ -19,7 +20,6 @@
 #include <mach/regs-apmu.h>
 #include <mach/cputype.h>
 #include <mach/irqs.h>
-#include <mach/gpio-pxa.h>
 #include <mach/dma.h>
 #include <mach/mfp.h>
 #include <mach/devices.h>
@@ -77,26 +77,9 @@ static struct mfp_addr_map pxa910_mfp_addr_map[] __initdata =
 	MFP_ADDR_END,
 };
 
-#define APMASK(i)	(GPIO_REGS_VIRT + BANK_OFF(i) + 0x09c)
-
-static void __init pxa910_init_gpio(void)
-{
-	int i;
-
-	/* enable GPIO clock */
-	__raw_writel(APBC_APBCLK | APBC_FNCLK, APBC_PXA910_GPIO);
-
-	/* unmask GPIO edge detection for all 4 banks - APMASKx */
-	for (i = 0; i < 4; i++)
-		__raw_writel(0xffffffff, APMASK(i));
-
-	pxa_init_gpio(IRQ_PXA910_AP_GPIO, 0, 127, NULL);
-}
-
 void __init pxa910_init_irq(void)
 {
 	icu_init_irq();
-	pxa910_init_gpio();
 }
 
 /* APB peripheral clocks */
@@ -108,6 +91,7 @@ static APBC_CLK(pwm1, PXA910_PWM1, 1, 13000000);
 static APBC_CLK(pwm2, PXA910_PWM2, 1, 13000000);
 static APBC_CLK(pwm3, PXA910_PWM3, 1, 13000000);
 static APBC_CLK(pwm4, PXA910_PWM4, 1, 13000000);
+static APBC_CLK(gpio, PXA910_GPIO, 0, 13000000);
 
 static APMU_CLK(nand, NAND, 0x19b, 156000000);
 static APMU_CLK(u2o, USB, 0x1b, 480000000);
@@ -123,6 +107,7 @@ static struct clk_lookup pxa910_clkregs[] = {
 	INIT_CLKREG(&clk_pwm3, "pxa910-pwm.2", NULL),
 	INIT_CLKREG(&clk_pwm4, "pxa910-pwm.3", NULL),
 	INIT_CLKREG(&clk_nand, "pxa3xx-nand", NULL),
+	INIT_CLKREG(&clk_gpio, "pxa-gpio", NULL),
 	INIT_CLKREG(&clk_u2o, "pxa-u2o", "U2OCLK"),
 };
 
@@ -179,3 +164,22 @@ PXA910_DEVICE(pwm2, "pxa910-pwm", 1, NONE, 0xd401a400, 0x10);
 PXA910_DEVICE(pwm3, "pxa910-pwm", 2, NONE, 0xd401a800, 0x10);
 PXA910_DEVICE(pwm4, "pxa910-pwm", 3, NONE, 0xd401ac00, 0x10);
 PXA910_DEVICE(nand, "pxa3xx-nand", -1, NAND, 0xd4283000, 0x80, 97, 99);
+
+struct resource pxa910_resource_gpio[] = {
+	{
+		.start	= 0xd4019000,
+		.end	= 0xd4019fff,
+		.flags	= IORESOURCE_MEM,
+	}, {
+		.start	= IRQ_PXA910_AP_GPIO,
+		.end	= IRQ_PXA910_AP_GPIO,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+struct platform_device pxa910_device_gpio = {
+	.name		= "pxa-gpio",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(pxa910_resource_gpio),
+	.resource	= pxa910_resource_gpio,
+};
diff --git a/arch/arm/mach-mmp/tavorevb.c b/arch/arm/mach-mmp/tavorevb.c
index 257a21283ec1..8e3b5af04a57 100644
--- a/arch/arm/mach-mmp/tavorevb.c
+++ b/arch/arm/mach-mmp/tavorevb.c
@@ -19,6 +19,7 @@
 #include <mach/addr-map.h>
 #include <mach/mfp-pxa910.h>
 #include <mach/pxa910.h>
+#include <mach/irqs.h>
 
 #include "common.h"
 
@@ -71,8 +72,8 @@ static struct resource smc91x_resources[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= gpio_to_irq(80),
-		.end	= gpio_to_irq(80),
+		.start	= MMP_GPIO_TO_IRQ(80),
+		.end	= MMP_GPIO_TO_IRQ(80),
 		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	}
 };
@@ -93,6 +94,7 @@ static void __init tavorevb_init(void)
 
 	/* on-chip devices */
 	pxa910_add_uart(1);
+	platform_device_register(&pxa910_device_gpio);
 
 	/* off-chip devices */
 	platform_device_register(&smc91x_device);
diff --git a/arch/arm/mach-mmp/teton_bga.c b/arch/arm/mach-mmp/teton_bga.c
index 8ac22a62bf1a..0523e422990e 100644
--- a/arch/arm/mach-mmp/teton_bga.c
+++ b/arch/arm/mach-mmp/teton_bga.c
@@ -66,7 +66,7 @@ static struct pxa27x_keypad_platform_data teton_bga_keypad_info __initdata = {
 static struct i2c_board_info teton_bga_i2c_info[] __initdata = {
 	{
 		I2C_BOARD_INFO("ds1337", 0x68),
-		.irq = gpio_to_irq(RTC_INT_GPIO)
+		.irq = MMP_GPIO_TO_IRQ(RTC_INT_GPIO)
 	},
 };
 
@@ -78,6 +78,7 @@ static void __init teton_bga_init(void)
 	pxa168_add_uart(1);
 	pxa168_add_keypad(&teton_bga_keypad_info);
 	pxa168_add_twsi(0, NULL, ARRAY_AND_SIZE(teton_bga_i2c_info));
+	platform_device_register(&pxa168_device_gpio);
 }
 
 MACHINE_START(TETON_BGA, "PXA168-based Teton BGA Development Platform")
diff --git a/arch/arm/mach-mmp/ttc_dkb.c b/arch/arm/mach-mmp/ttc_dkb.c
index f02658825576..5ac5d5832e45 100644
--- a/arch/arm/mach-mmp/ttc_dkb.c
+++ b/arch/arm/mach-mmp/ttc_dkb.c
@@ -24,12 +24,13 @@
 #include <mach/addr-map.h>
 #include <mach/mfp-pxa910.h>
 #include <mach/pxa910.h>
+#include <mach/irqs.h>
 
 #include "common.h"
 
-#define TTCDKB_GPIO_EXT0(x)	(NR_BUILTIN_GPIO + ((x < 0) ? 0 :	\
+#define TTCDKB_GPIO_EXT0(x)	(MMP_NR_BUILTIN_GPIO + ((x < 0) ? 0 :	\
 				((x < 16) ? x : 15)))
-#define TTCDKB_GPIO_EXT1(x)	(NR_BUILTIN_GPIO + 16 + ((x < 0) ? 0 :	\
+#define TTCDKB_GPIO_EXT1(x)	(MMP_NR_BUILTIN_GPIO + 16 + ((x < 0) ? 0 : \
 				((x < 16) ? x : 15)))
 
 /*
@@ -122,6 +123,7 @@ static struct platform_device ttc_dkb_device_onenand = {
 };
 
 static struct platform_device *ttc_dkb_devices[] = {
+	&pxa910_device_gpio,
 	&ttc_dkb_device_onenand,
 };
 
@@ -136,7 +138,7 @@ static struct i2c_board_info ttc_dkb_i2c_info[] = {
 	{
 		.type		= "max7312",
 		.addr		= 0x23,
-		.irq		= IRQ_GPIO(80),
+		.irq		= MMP_GPIO_TO_IRQ(80),
 		.platform_data	= &max7312_data,
 	},
 };
diff --git a/arch/arm/mach-msm/Kconfig b/arch/arm/mach-msm/Kconfig
index e6beaff7621e..1cd40ad301d3 100644
--- a/arch/arm/mach-msm/Kconfig
+++ b/arch/arm/mach-msm/Kconfig
@@ -13,7 +13,6 @@ config ARCH_MSM7X00A
 	select CPU_V6
 	select GPIO_MSM_V1
 	select MSM_PROC_COMM
-	select HAS_MSM_DEBUG_UART_PHYS
 
 config ARCH_MSM7X30
 	bool "MSM7x30"
@@ -25,7 +24,6 @@ config ARCH_MSM7X30
 	select MSM_GPIOMUX
 	select GPIO_MSM_V1
 	select MSM_PROC_COMM
-	select HAS_MSM_DEBUG_UART_PHYS
 
 config ARCH_QSD8X50
 	bool "QSD8X50"
@@ -37,7 +35,6 @@ config ARCH_QSD8X50
 	select MSM_GPIOMUX
 	select GPIO_MSM_V1
 	select MSM_PROC_COMM
-	select HAS_MSM_DEBUG_UART_PHYS
 
 config ARCH_MSM8X60
 	bool "MSM8X60"
@@ -63,6 +60,9 @@ config ARCH_MSM8960
 
 endchoice
 
+config MSM_HAS_DEBUG_UART_HS
+	bool
+
 config MSM_SOC_REV_A
 	bool
 config  ARCH_MSM_SCORPIONMP
@@ -74,9 +74,6 @@ config  ARCH_MSM_ARM11
 config  ARCH_MSM_SCORPION
 	bool
 
-config HAS_MSM_DEBUG_UART_PHYS
-	bool
-
 config  MSM_VIC
 	bool
 
@@ -153,32 +150,6 @@ config MACH_MSM8960_RUMI3
 
 endmenu
 
-config MSM_DEBUG_UART
-	int
-	default 1 if MSM_DEBUG_UART1
-	default 2 if MSM_DEBUG_UART2
-	default 3 if MSM_DEBUG_UART3
-
-if HAS_MSM_DEBUG_UART_PHYS
-choice
-	prompt "Debug UART"
-
-	default MSM_DEBUG_UART_NONE
-
-	config MSM_DEBUG_UART_NONE
-		bool "None"
-
-	config MSM_DEBUG_UART1
-		bool "UART1"
-
-	config MSM_DEBUG_UART2
-		bool "UART2"
-
-	config MSM_DEBUG_UART3
-		bool "UART3"
-endchoice
-endif
-
 config MSM_SMD_PKG3
 	bool
 
diff --git a/arch/arm/mach-msm/include/mach/debug-macro.S b/arch/arm/mach-msm/include/mach/debug-macro.S
index 2dc73ccddb11..3ffd8668c9a5 100644
--- a/arch/arm/mach-msm/include/mach/debug-macro.S
+++ b/arch/arm/mach-msm/include/mach/debug-macro.S
@@ -1,6 +1,7 @@
-/* arch/arm/mach-msm7200/include/mach/debug-macro.S
+/*
  *
  * Copyright (C) 2007 Google, Inc.
+ * Copyright (c) 2011, Code Aurora Forum. All rights reserved.
  * Author: Brian Swetland <swetland@google.com>
  *
  * This software is licensed under the terms of the GNU General Public
@@ -14,40 +15,52 @@
  *
  */
 
-
-
 #include <mach/hardware.h>
 #include <mach/msm_iomap.h>
 
-#if defined(CONFIG_HAS_MSM_DEBUG_UART_PHYS) && !defined(CONFIG_MSM_DEBUG_UART_NONE)
 	.macro	addruart, rp, rv, tmp
+#ifdef MSM_DEBUG_UART_PHYS
 	ldr	\rp, =MSM_DEBUG_UART_PHYS
 	ldr	\rv, =MSM_DEBUG_UART_BASE
+#endif
 	.endm
 
-	.macro	senduart,rd,rx
+	.macro	senduart, rd, rx
+#ifdef CONFIG_MSM_HAS_DEBUG_UART_HS
+	@ Write the 1 character to UARTDM_TF
+	str	\rd, [\rx, #0x70]
+#else
 	teq	\rx, #0
 	strne	\rd, [\rx, #0x0C]
+#endif
 	.endm
 
-	.macro	waituart,rd,rx
+	.macro	waituart, rd, rx
+#ifdef CONFIG_MSM_HAS_DEBUG_UART_HS
+	@ check for TX_EMT in UARTDM_SR
+	ldr	\rd, [\rx, #0x08]
+	tst	\rd, #0x08
+	bne	1002f
+	@ wait for TXREADY in UARTDM_ISR
+1001:	ldr	\rd, [\rx, #0x14]
+	tst	\rd, #0x80
+	beq 	1001b
+1002:
+	@ Clear TX_READY by writing to the UARTDM_CR register
+	mov	\rd, #0x300
+	str	\rd, [\rx, #0x10]
+	@ Write 0x1 to NCF register
+	mov 	\rd, #0x1
+	str	\rd, [\rx, #0x40]
+	@ UARTDM reg. Read to induce delay
+	ldr	\rd, [\rx, #0x08]
+#else
 	@ wait for TX_READY
 1001:	ldr	\rd, [\rx, #0x08]
 	tst	\rd, #0x04
 	beq	1001b
-	.endm
-#else
-	.macro  addruart, rp, rv, tmp
-	mov	\rv, #0xff000000
-	orr	\rv, \rv, #0x00f00000
-	.endm
-
-	.macro	senduart,rd,rx
-	.endm
-
-	.macro	waituart,rd,rx
-	.endm
 #endif
+	.endm
 
-	.macro	busyuart,rd,rx
+	.macro	busyuart, rd, rx
 	.endm
diff --git a/arch/arm/mach-msm/include/mach/msm_iomap-7x00.h b/arch/arm/mach-msm/include/mach/msm_iomap-7x00.h
index 94fe9fe6feb3..8af46123dab6 100644
--- a/arch/arm/mach-msm/include/mach/msm_iomap-7x00.h
+++ b/arch/arm/mach-msm/include/mach/msm_iomap-7x00.h
@@ -78,18 +78,6 @@
 #define MSM_UART3_PHYS        0xA9C00000
 #define MSM_UART3_SIZE        SZ_4K
 
-#ifdef CONFIG_MSM_DEBUG_UART
-#define MSM_DEBUG_UART_BASE   0xE1000000
-#if CONFIG_MSM_DEBUG_UART == 1
-#define MSM_DEBUG_UART_PHYS   MSM_UART1_PHYS
-#elif CONFIG_MSM_DEBUG_UART == 2
-#define MSM_DEBUG_UART_PHYS   MSM_UART2_PHYS
-#elif CONFIG_MSM_DEBUG_UART == 3
-#define MSM_DEBUG_UART_PHYS   MSM_UART3_PHYS
-#endif
-#define MSM_DEBUG_UART_SIZE   SZ_4K
-#endif
-
 #define MSM_SDC1_PHYS         0xA0400000
 #define MSM_SDC1_SIZE         SZ_4K
 
diff --git a/arch/arm/mach-msm/include/mach/msm_iomap-7x30.h b/arch/arm/mach-msm/include/mach/msm_iomap-7x30.h
index 37694442d1bd..198202c267c8 100644
--- a/arch/arm/mach-msm/include/mach/msm_iomap-7x30.h
+++ b/arch/arm/mach-msm/include/mach/msm_iomap-7x30.h
@@ -89,18 +89,6 @@
 #define MSM_UART3_PHYS        0xACC00000
 #define MSM_UART3_SIZE        SZ_4K
 
-#ifdef CONFIG_MSM_DEBUG_UART
-#define MSM_DEBUG_UART_BASE   0xE1000000
-#if CONFIG_MSM_DEBUG_UART == 1
-#define MSM_DEBUG_UART_PHYS   MSM_UART1_PHYS
-#elif CONFIG_MSM_DEBUG_UART == 2
-#define MSM_DEBUG_UART_PHYS   MSM_UART2_PHYS
-#elif CONFIG_MSM_DEBUG_UART == 3
-#define MSM_DEBUG_UART_PHYS   MSM_UART3_PHYS
-#endif
-#define MSM_DEBUG_UART_SIZE   SZ_4K
-#endif
-
 #define MSM_MDC_BASE	      IOMEM(0xE0200000)
 #define MSM_MDC_PHYS	      0xAA500000
 #define MSM_MDC_SIZE	      SZ_1M
diff --git a/arch/arm/mach-msm/include/mach/msm_iomap-8960.h b/arch/arm/mach-msm/include/mach/msm_iomap-8960.h
index 3c9d9602a318..800b55767e6b 100644
--- a/arch/arm/mach-msm/include/mach/msm_iomap-8960.h
+++ b/arch/arm/mach-msm/include/mach/msm_iomap-8960.h
@@ -45,4 +45,9 @@
 #define MSM8960_TMR0_PHYS	0x0208A000
 #define MSM8960_TMR0_SIZE	SZ_4K
 
+#ifdef CONFIG_DEBUG_MSM8960_UART
+#define MSM_DEBUG_UART_BASE	0xE1040000
+#define MSM_DEBUG_UART_PHYS	0x16440000
+#endif
+
 #endif
diff --git a/arch/arm/mach-msm/include/mach/msm_iomap-8x50.h b/arch/arm/mach-msm/include/mach/msm_iomap-8x50.h
index d67cd73316f4..0faa894729b7 100644
--- a/arch/arm/mach-msm/include/mach/msm_iomap-8x50.h
+++ b/arch/arm/mach-msm/include/mach/msm_iomap-8x50.h
@@ -83,18 +83,6 @@
 #define MSM_UART3_PHYS        0xA9C00000
 #define MSM_UART3_SIZE        SZ_4K
 
-#ifdef CONFIG_MSM_DEBUG_UART
-#define MSM_DEBUG_UART_BASE   0xE1000000
-#if CONFIG_MSM_DEBUG_UART == 1
-#define MSM_DEBUG_UART_PHYS   MSM_UART1_PHYS
-#elif CONFIG_MSM_DEBUG_UART == 2
-#define MSM_DEBUG_UART_PHYS   MSM_UART2_PHYS
-#elif CONFIG_MSM_DEBUG_UART == 3
-#define MSM_DEBUG_UART_PHYS   MSM_UART3_PHYS
-#endif
-#define MSM_DEBUG_UART_SIZE   SZ_4K
-#endif
-
 #define MSM_MDC_BASE	      IOMEM(0xE0200000)
 #define MSM_MDC_PHYS	      0xAA500000
 #define MSM_MDC_SIZE	      SZ_1M
diff --git a/arch/arm/mach-msm/include/mach/msm_iomap-8x60.h b/arch/arm/mach-msm/include/mach/msm_iomap-8x60.h
index 3b19b8f244b8..54e12caa8d86 100644
--- a/arch/arm/mach-msm/include/mach/msm_iomap-8x60.h
+++ b/arch/arm/mach-msm/include/mach/msm_iomap-8x60.h
@@ -62,4 +62,9 @@
 #define MSM8X60_TMR0_PHYS	0x02040000
 #define MSM8X60_TMR0_SIZE	SZ_4K
 
+#ifdef CONFIG_DEBUG_MSM8660_UART
+#define MSM_DEBUG_UART_BASE	0xE1040000
+#define MSM_DEBUG_UART_PHYS	0x19C40000
+#endif
+
 #endif
diff --git a/arch/arm/mach-msm/include/mach/msm_iomap.h b/arch/arm/mach-msm/include/mach/msm_iomap.h
index 4ded15238b60..90682f4599d3 100644
--- a/arch/arm/mach-msm/include/mach/msm_iomap.h
+++ b/arch/arm/mach-msm/include/mach/msm_iomap.h
@@ -55,6 +55,18 @@
 
 #include "msm_iomap-8960.h"
 
+#define MSM_DEBUG_UART_SIZE	SZ_4K
+#if defined(CONFIG_DEBUG_MSM_UART1)
+#define MSM_DEBUG_UART_BASE	0xE1000000
+#define MSM_DEBUG_UART_PHYS	MSM_UART1_PHYS
+#elif defined(CONFIG_DEBUG_MSM_UART2)
+#define MSM_DEBUG_UART_BASE	0xE1000000
+#define MSM_DEBUG_UART_PHYS	MSM_UART2_PHYS
+#elif defined(CONFIG_DEBUG_MSM_UART3)
+#define MSM_DEBUG_UART_BASE	0xE1000000
+#define MSM_DEBUG_UART_PHYS	MSM_UART3_PHYS
+#endif
+
 /* Virtual addresses shared across all MSM targets. */
 #define MSM_CSR_BASE		IOMEM(0xE0001000)
 #define MSM_QGIC_DIST_BASE	IOMEM(0xF0000000)
diff --git a/arch/arm/mach-msm/include/mach/uncompress.h b/arch/arm/mach-msm/include/mach/uncompress.h
index d94292c29d8e..169a84007456 100644
--- a/arch/arm/mach-msm/include/mach/uncompress.h
+++ b/arch/arm/mach-msm/include/mach/uncompress.h
@@ -1,6 +1,6 @@
-/* arch/arm/mach-msm/include/mach/uncompress.h
- *
+/*
  * Copyright (C) 2007 Google, Inc.
+ * Copyright (c) 2011, Code Aurora Forum. All rights reserved.
  *
  * This software is licensed under the terms of the GNU General Public
  * License version 2, as published by the Free Software Foundation, and
@@ -14,17 +14,40 @@
  */
 
 #ifndef __ASM_ARCH_MSM_UNCOMPRESS_H
+#define __ASM_ARCH_MSM_UNCOMPRESS_H
+
+#include <asm/processor.h>
+#include <mach/msm_iomap.h>
+
+#define UART_CSR      (*(volatile uint32_t *)(MSM_DEBUG_UART_PHYS + 0x08))
+#define UART_TF       (*(volatile uint32_t *)(MSM_DEBUG_UART_PHYS + 0x0c))
 
-#include "hardware.h"
-#include "linux/io.h"
-#include "mach/msm_iomap.h"
+#define UART_DM_SR    (*((volatile uint32_t *)(MSM_DEBUG_UART_PHYS + 0x08)))
+#define UART_DM_CR    (*((volatile uint32_t *)(MSM_DEBUG_UART_PHYS + 0x10)))
+#define UART_DM_ISR   (*((volatile uint32_t *)(MSM_DEBUG_UART_PHYS + 0x14)))
+#define UART_DM_NCHAR (*((volatile uint32_t *)(MSM_DEBUG_UART_PHYS + 0x40)))
+#define UART_DM_TF    (*((volatile uint32_t *)(MSM_DEBUG_UART_PHYS + 0x70)))
 
 static void putc(int c)
 {
 #if defined(MSM_DEBUG_UART_PHYS)
-	unsigned base = MSM_DEBUG_UART_PHYS;
-	while (!(readl(base + 0x08) & 0x04)) ;
-	writel(c, base + 0x0c);
+#ifdef CONFIG_MSM_HAS_DEBUG_UART_HS
+	/*
+	 * Wait for TX_READY to be set; but skip it if we have a
+	 * TX underrun.
+	 */
+	if (UART_DM_SR & 0x08)
+		while (!(UART_DM_ISR & 0x80))
+			cpu_relax();
+
+	UART_DM_CR = 0x300;
+	UART_DM_NCHAR = 0x1;
+	UART_DM_TF = c;
+#else
+	while (!(UART_CSR & 0x04))
+		cpu_relax();
+	UART_TF = c;
+#endif
 #endif
 }
 
diff --git a/arch/arm/mach-msm/io.c b/arch/arm/mach-msm/io.c
index 8759ecf7454f..578b04e42deb 100644
--- a/arch/arm/mach-msm/io.c
+++ b/arch/arm/mach-msm/io.c
@@ -47,7 +47,8 @@ static struct map_desc msm_io_desc[] __initdata = {
 	MSM_CHIP_DEVICE(GPIO1, MSM7X00),
 	MSM_CHIP_DEVICE(GPIO2, MSM7X00),
 	MSM_DEVICE(CLK_CTL),
-#ifdef CONFIG_MSM_DEBUG_UART
+#if defined(CONFIG_DEBUG_MSM_UART1) || defined(CONFIG_DEBUG_MSM_UART2) || \
+	defined(CONFIG_DEBUG_MSM_UART3)
 	MSM_DEVICE(DEBUG_UART),
 #endif
 #ifdef CONFIG_ARCH_MSM7X30
@@ -84,7 +85,8 @@ static struct map_desc qsd8x50_io_desc[] __initdata = {
 	MSM_DEVICE(SCPLL),
 	MSM_DEVICE(AD5),
 	MSM_DEVICE(MDC),
-#ifdef CONFIG_MSM_DEBUG_UART
+#if defined(CONFIG_DEBUG_MSM_UART1) || defined(CONFIG_DEBUG_MSM_UART2) || \
+	defined(CONFIG_DEBUG_MSM_UART3)
 	MSM_DEVICE(DEBUG_UART),
 #endif
 	{
@@ -109,6 +111,9 @@ static struct map_desc msm8x60_io_desc[] __initdata = {
 	MSM_CHIP_DEVICE(TMR0, MSM8X60),
 	MSM_DEVICE(ACC),
 	MSM_DEVICE(GCC),
+#ifdef CONFIG_DEBUG_MSM8660_UART
+	MSM_DEVICE(DEBUG_UART),
+#endif
 };
 
 void __init msm_map_msm8x60_io(void)
@@ -123,6 +128,9 @@ static struct map_desc msm8960_io_desc[] __initdata = {
 	MSM_CHIP_DEVICE(QGIC_CPU, MSM8960),
 	MSM_CHIP_DEVICE(TMR, MSM8960),
 	MSM_CHIP_DEVICE(TMR0, MSM8960),
+#ifdef CONFIG_DEBUG_MSM8960_UART
+	MSM_DEVICE(DEBUG_UART),
+#endif
 };
 
 void __init msm_map_msm8960_io(void)
@@ -146,7 +154,8 @@ static struct map_desc msm7x30_io_desc[] __initdata = {
 	MSM_DEVICE(SAW),
 	MSM_DEVICE(GCC),
 	MSM_DEVICE(TCSR),
-#ifdef CONFIG_MSM_DEBUG_UART
+#if defined(CONFIG_DEBUG_MSM_UART1) || defined(CONFIG_DEBUG_MSM_UART2) || \
+	defined(CONFIG_DEBUG_MSM_UART3)
 	MSM_DEVICE(DEBUG_UART),
 #endif
 	{
diff --git a/arch/arm/mach-msm/platsmp.c b/arch/arm/mach-msm/platsmp.c
index fdec58aaa35c..0b3e357c4c8c 100644
--- a/arch/arm/mach-msm/platsmp.c
+++ b/arch/arm/mach-msm/platsmp.c
@@ -79,7 +79,7 @@ static __cpuinit void prepare_cold_cpu(unsigned int cpu)
 	ret = scm_set_boot_addr(virt_to_phys(msm_secondary_startup),
 				SCM_FLAG_COLDBOOT_CPU1);
 	if (ret == 0) {
-		void *sc1_base_ptr;
+		void __iomem *sc1_base_ptr;
 		sc1_base_ptr = ioremap_nocache(0x00902000, SZ_4K*2);
 		if (sc1_base_ptr) {
 			writel(0, sc1_base_ptr + VDD_SC1_ARRAY_CLAMP_GFS_CTL);
diff --git a/arch/arm/mach-msm/timer.c b/arch/arm/mach-msm/timer.c
index afeeca52fc66..11d0d8f2656c 100644
--- a/arch/arm/mach-msm/timer.c
+++ b/arch/arm/mach-msm/timer.c
@@ -1,6 +1,7 @@
-/* linux/arch/arm/mach-msm/timer.c
+/*
  *
  * Copyright (C) 2007 Google, Inc.
+ * Copyright (c) 2009-2011, Code Aurora Forum. All rights reserved.
  *
  * This software is licensed under the terms of the GNU General Public
  * License version 2, as published by the Free Software Foundation, and
@@ -13,306 +14,207 @@
  *
  */
 
+#include <linux/clocksource.h>
+#include <linux/clockchips.h>
 #include <linux/init.h>
-#include <linux/time.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
-#include <linux/clk.h>
-#include <linux/clockchips.h>
-#include <linux/delay.h>
 #include <linux/io.h>
 
 #include <asm/mach/time.h>
 #include <asm/hardware/gic.h>
+#include <asm/localtimer.h>
 
 #include <mach/msm_iomap.h>
 #include <mach/cpu.h>
+#include <mach/board.h>
 
 #define TIMER_MATCH_VAL         0x0000
 #define TIMER_COUNT_VAL         0x0004
 #define TIMER_ENABLE            0x0008
-#define TIMER_ENABLE_CLR_ON_MATCH_EN    2
-#define TIMER_ENABLE_EN                 1
+#define TIMER_ENABLE_CLR_ON_MATCH_EN    BIT(1)
+#define TIMER_ENABLE_EN                 BIT(0)
 #define TIMER_CLEAR             0x000C
 #define DGT_CLK_CTL             0x0034
-enum {
-	DGT_CLK_CTL_DIV_1 = 0,
-	DGT_CLK_CTL_DIV_2 = 1,
-	DGT_CLK_CTL_DIV_3 = 2,
-	DGT_CLK_CTL_DIV_4 = 3,
-};
-#define CSR_PROTECTION          0x0020
-#define CSR_PROTECTION_EN               1
+#define DGT_CLK_CTL_DIV_4	0x3
 
 #define GPT_HZ 32768
 
-enum timer_location {
-	LOCAL_TIMER = 0,
-	GLOBAL_TIMER = 1,
-};
-
-#define MSM_GLOBAL_TIMER MSM_CLOCK_DGT
-
-/* TODO: Remove these ifdefs */
-#if defined(CONFIG_ARCH_QSD8X50)
-#define DGT_HZ (19200000 / 4) /* 19.2 MHz / 4 by default */
-#define MSM_DGT_SHIFT (0)
-#elif defined(CONFIG_ARCH_MSM7X30)
-#define DGT_HZ (24576000 / 4) /* 24.576 MHz (LPXO) / 4 by default */
-#define MSM_DGT_SHIFT (0)
-#elif defined(CONFIG_ARCH_MSM8X60) || defined(CONFIG_ARCH_MSM8960)
-#define DGT_HZ (27000000 / 4) /* 27 MHz (PXO) / 4 by default */
-#define MSM_DGT_SHIFT (0)
-#else
-#define DGT_HZ 19200000 /* 19.2 MHz or 600 KHz after shift */
-#define MSM_DGT_SHIFT (5)
-#endif
+#define MSM_DGT_SHIFT 5
 
-struct msm_clock {
-	struct clock_event_device   clockevent;
-	struct clocksource          clocksource;
-	unsigned int		    irq;
-	void __iomem                *regbase;
-	uint32_t                    freq;
-	uint32_t                    shift;
-	void __iomem                *global_counter;
-	void __iomem                *local_counter;
-	union {
-		struct clock_event_device		*evt;
-		struct clock_event_device __percpu	**percpu_evt;
-	};		
-};
-
-enum {
-	MSM_CLOCK_GPT,
-	MSM_CLOCK_DGT,
-	NR_TIMERS,
-};
-
-
-static struct msm_clock msm_clocks[];
+static void __iomem *event_base;
 
 static irqreturn_t msm_timer_interrupt(int irq, void *dev_id)
 {
 	struct clock_event_device *evt = *(struct clock_event_device **)dev_id;
-	if (evt->event_handler == NULL)
-		return IRQ_HANDLED;
+	/* Stop the timer tick */
+	if (evt->mode == CLOCK_EVT_MODE_ONESHOT) {
+		u32 ctrl = readl_relaxed(event_base + TIMER_ENABLE);
+		ctrl &= ~TIMER_ENABLE_EN;
+		writel_relaxed(ctrl, event_base + TIMER_ENABLE);
+	}
 	evt->event_handler(evt);
 	return IRQ_HANDLED;
 }
 
-static cycle_t msm_read_timer_count(struct clocksource *cs)
-{
-	struct msm_clock *clk = container_of(cs, struct msm_clock, clocksource);
-
-	/*
-	 * Shift timer count down by a constant due to unreliable lower bits
-	 * on some targets.
-	 */
-	return readl(clk->global_counter) >> clk->shift;
-}
-
-static struct msm_clock *clockevent_to_clock(struct clock_event_device *evt)
-{
-#ifdef CONFIG_SMP
-	int i;
-	for (i = 0; i < NR_TIMERS; i++)
-		if (evt == &(msm_clocks[i].clockevent))
-			return &msm_clocks[i];
-	return &msm_clocks[MSM_GLOBAL_TIMER];
-#else
-	return container_of(evt, struct msm_clock, clockevent);
-#endif
-}
-
 static int msm_timer_set_next_event(unsigned long cycles,
 				    struct clock_event_device *evt)
 {
-	struct msm_clock *clock = clockevent_to_clock(evt);
-	uint32_t now = readl(clock->local_counter);
-	uint32_t alarm = now + (cycles << clock->shift);
+	u32 ctrl = readl_relaxed(event_base + TIMER_ENABLE);
 
-	writel(alarm, clock->regbase + TIMER_MATCH_VAL);
+	writel_relaxed(0, event_base + TIMER_CLEAR);
+	writel_relaxed(cycles, event_base + TIMER_MATCH_VAL);
+	writel_relaxed(ctrl | TIMER_ENABLE_EN, event_base + TIMER_ENABLE);
 	return 0;
 }
 
 static void msm_timer_set_mode(enum clock_event_mode mode,
 			      struct clock_event_device *evt)
 {
-	struct msm_clock *clock = clockevent_to_clock(evt);
+	u32 ctrl;
+
+	ctrl = readl_relaxed(event_base + TIMER_ENABLE);
+	ctrl &= ~(TIMER_ENABLE_EN | TIMER_ENABLE_CLR_ON_MATCH_EN);
 
 	switch (mode) {
 	case CLOCK_EVT_MODE_RESUME:
 	case CLOCK_EVT_MODE_PERIODIC:
 		break;
 	case CLOCK_EVT_MODE_ONESHOT:
-		writel(TIMER_ENABLE_EN, clock->regbase + TIMER_ENABLE);
+		/* Timer is enabled in set_next_event */
 		break;
 	case CLOCK_EVT_MODE_UNUSED:
 	case CLOCK_EVT_MODE_SHUTDOWN:
-		writel(0, clock->regbase + TIMER_ENABLE);
 		break;
 	}
+	writel_relaxed(ctrl, event_base + TIMER_ENABLE);
 }
 
-static struct msm_clock msm_clocks[] = {
-	[MSM_CLOCK_GPT] = {
-		.clockevent = {
-			.name           = "gp_timer",
-			.features       = CLOCK_EVT_FEAT_ONESHOT,
-			.shift          = 32,
-			.rating         = 200,
-			.set_next_event = msm_timer_set_next_event,
-			.set_mode       = msm_timer_set_mode,
-		},
-		.clocksource = {
-			.name           = "gp_timer",
-			.rating         = 200,
-			.read           = msm_read_timer_count,
-			.mask           = CLOCKSOURCE_MASK(32),
-			.flags          = CLOCK_SOURCE_IS_CONTINUOUS,
-		},
-		.irq = INT_GP_TIMER_EXP,
-		.freq = GPT_HZ,
-	},
-	[MSM_CLOCK_DGT] = {
-		.clockevent = {
-			.name           = "dg_timer",
-			.features       = CLOCK_EVT_FEAT_ONESHOT,
-			.shift          = 32 + MSM_DGT_SHIFT,
-			.rating         = 300,
-			.set_next_event = msm_timer_set_next_event,
-			.set_mode       = msm_timer_set_mode,
-		},
-		.clocksource = {
-			.name           = "dg_timer",
-			.rating         = 300,
-			.read           = msm_read_timer_count,
-			.mask           = CLOCKSOURCE_MASK((32 - MSM_DGT_SHIFT)),
-			.flags          = CLOCK_SOURCE_IS_CONTINUOUS,
-		},
-		.irq = INT_DEBUG_TIMER_EXP,
-		.freq = DGT_HZ >> MSM_DGT_SHIFT,
-		.shift = MSM_DGT_SHIFT,
-	}
+static struct clock_event_device msm_clockevent = {
+	.name		= "gp_timer",
+	.features	= CLOCK_EVT_FEAT_ONESHOT,
+	.rating		= 200,
+	.set_next_event	= msm_timer_set_next_event,
+	.set_mode	= msm_timer_set_mode,
+};
+
+static union {
+	struct clock_event_device *evt;
+	struct clock_event_device __percpu **percpu_evt;
+} msm_evt;
+
+static void __iomem *source_base;
+
+static cycle_t msm_read_timer_count(struct clocksource *cs)
+{
+	return readl_relaxed(source_base + TIMER_COUNT_VAL);
+}
+
+static cycle_t msm_read_timer_count_shift(struct clocksource *cs)
+{
+	/*
+	 * Shift timer count down by a constant due to unreliable lower bits
+	 * on some targets.
+	 */
+	return msm_read_timer_count(cs) >> MSM_DGT_SHIFT;
+}
+
+static struct clocksource msm_clocksource = {
+	.name	= "dg_timer",
+	.rating	= 300,
+	.read	= msm_read_timer_count,
+	.mask	= CLOCKSOURCE_MASK(32),
+	.flags	= CLOCK_SOURCE_IS_CONTINUOUS,
 };
 
 static void __init msm_timer_init(void)
 {
-	int i;
+	struct clock_event_device *ce = &msm_clockevent;
+	struct clocksource *cs = &msm_clocksource;
 	int res;
-	int global_offset = 0;
+	u32 dgt_hz;
 
 	if (cpu_is_msm7x01()) {
-		msm_clocks[MSM_CLOCK_GPT].regbase = MSM_CSR_BASE;
-		msm_clocks[MSM_CLOCK_DGT].regbase = MSM_CSR_BASE + 0x10;
+		event_base = MSM_CSR_BASE;
+		source_base = MSM_CSR_BASE + 0x10;
+		dgt_hz = 19200000 >> MSM_DGT_SHIFT; /* 600 KHz */
+		cs->read = msm_read_timer_count_shift;
+		cs->mask = CLOCKSOURCE_MASK((32 - MSM_DGT_SHIFT));
 	} else if (cpu_is_msm7x30()) {
-		msm_clocks[MSM_CLOCK_GPT].regbase = MSM_CSR_BASE + 0x04;
-		msm_clocks[MSM_CLOCK_DGT].regbase = MSM_CSR_BASE + 0x24;
+		event_base = MSM_CSR_BASE + 0x04;
+		source_base = MSM_CSR_BASE + 0x24;
+		dgt_hz = 24576000 / 4;
 	} else if (cpu_is_qsd8x50()) {
-		msm_clocks[MSM_CLOCK_GPT].regbase = MSM_CSR_BASE;
-		msm_clocks[MSM_CLOCK_DGT].regbase = MSM_CSR_BASE + 0x10;
+		event_base = MSM_CSR_BASE;
+		source_base = MSM_CSR_BASE + 0x10;
+		dgt_hz = 19200000 / 4;
 	} else if (cpu_is_msm8x60() || cpu_is_msm8960()) {
-		msm_clocks[MSM_CLOCK_GPT].regbase = MSM_TMR_BASE + 0x04;
-		msm_clocks[MSM_CLOCK_DGT].regbase = MSM_TMR_BASE + 0x24;
-
-		/* Use CPU0's timer as the global timer. */
-		global_offset = MSM_TMR0_BASE - MSM_TMR_BASE;
+		event_base = MSM_TMR_BASE + 0x04;
+		/* Use CPU0's timer as the global clock source. */
+		source_base = MSM_TMR0_BASE + 0x24;
+		dgt_hz = 27000000 / 4;
+		writel_relaxed(DGT_CLK_CTL_DIV_4, MSM_TMR_BASE + DGT_CLK_CTL);
 	} else
 		BUG();
 
-#ifdef CONFIG_ARCH_MSM_SCORPIONMP
-	writel(DGT_CLK_CTL_DIV_4, MSM_TMR_BASE + DGT_CLK_CTL);
-#endif
-
-	for (i = 0; i < ARRAY_SIZE(msm_clocks); i++) {
-		struct msm_clock *clock = &msm_clocks[i];
-		struct clock_event_device *ce = &clock->clockevent;
-		struct clocksource *cs = &clock->clocksource;
-
-		clock->local_counter = clock->regbase + TIMER_COUNT_VAL;
-		clock->global_counter = clock->local_counter + global_offset;
-
-		writel(0, clock->regbase + TIMER_ENABLE);
-		writel(0, clock->regbase + TIMER_CLEAR);
-		writel(~0, clock->regbase + TIMER_MATCH_VAL);
-
-		ce->mult = div_sc(clock->freq, NSEC_PER_SEC, ce->shift);
-		/* allow at least 10 seconds to notice that the timer wrapped */
-		ce->max_delta_ns =
-			clockevent_delta2ns(0xf0000000 >> clock->shift, ce);
-		/* 4 gets rounded down to 3 */
-		ce->min_delta_ns = clockevent_delta2ns(4, ce);
-		ce->cpumask = cpumask_of(0);
-
-		res = clocksource_register_hz(cs, clock->freq);
-		if (res)
-			printk(KERN_ERR "msm_timer_init: clocksource_register "
-			       "failed for %s\n", cs->name);
-
-		ce->irq = clock->irq;
-		if (cpu_is_msm8x60() || cpu_is_msm8960()) {
-			clock->percpu_evt = alloc_percpu(struct clock_event_device *);
-			if (!clock->percpu_evt) {
-				pr_err("msm_timer_init: memory allocation "
-				       "failed for %s\n", ce->name);
-				continue;
-			}
-
-			*__this_cpu_ptr(clock->percpu_evt) = ce;
-			res = request_percpu_irq(ce->irq, msm_timer_interrupt,
-						 ce->name, clock->percpu_evt);
-			if (!res)
-				enable_percpu_irq(ce->irq, 0);
-		} else {
-			clock->evt = ce;
-			res = request_irq(ce->irq, msm_timer_interrupt,
-					  IRQF_TIMER | IRQF_NOBALANCING | IRQF_TRIGGER_RISING,
-					  ce->name, &clock->evt);
+	writel_relaxed(0, event_base + TIMER_ENABLE);
+	writel_relaxed(0, event_base + TIMER_CLEAR);
+	writel_relaxed(~0, event_base + TIMER_MATCH_VAL);
+	ce->cpumask = cpumask_of(0);
+
+	ce->irq = INT_GP_TIMER_EXP;
+	clockevents_config_and_register(ce, GPT_HZ, 4, 0xffffffff);
+	if (cpu_is_msm8x60() || cpu_is_msm8960()) {
+		msm_evt.percpu_evt = alloc_percpu(struct clock_event_device *);
+		if (!msm_evt.percpu_evt) {
+			pr_err("memory allocation failed for %s\n", ce->name);
+			goto err;
 		}
-
-		if (res)
-			pr_err("msm_timer_init: request_irq failed for %s\n",
-			       ce->name);
-
-		clockevents_register_device(ce);
+		*__this_cpu_ptr(msm_evt.percpu_evt) = ce;
+		res = request_percpu_irq(ce->irq, msm_timer_interrupt,
+					 ce->name, msm_evt.percpu_evt);
+		if (!res)
+			enable_percpu_irq(ce->irq, 0);
+	} else {
+		msm_evt.evt = ce;
+		res = request_irq(ce->irq, msm_timer_interrupt,
+				  IRQF_TIMER | IRQF_NOBALANCING |
+				  IRQF_TRIGGER_RISING, ce->name, &msm_evt.evt);
 	}
+
+	if (res)
+		pr_err("request_irq failed for %s\n", ce->name);
+err:
+	writel_relaxed(TIMER_ENABLE_EN, source_base + TIMER_ENABLE);
+	res = clocksource_register_hz(cs, dgt_hz);
+	if (res)
+		pr_err("clocksource_register failed\n");
 }
 
-#ifdef CONFIG_SMP
+#ifdef CONFIG_LOCAL_TIMERS
 int __cpuinit local_timer_setup(struct clock_event_device *evt)
 {
-	static bool local_timer_inited;
-	struct msm_clock *clock = &msm_clocks[MSM_GLOBAL_TIMER];
-
 	/* Use existing clock_event for cpu 0 */
 	if (!smp_processor_id())
 		return 0;
 
-	writel(DGT_CLK_CTL_DIV_4, MSM_TMR_BASE + DGT_CLK_CTL);
-
-	if (!local_timer_inited) {
-		writel(0, clock->regbase  + TIMER_ENABLE);
-		writel(0, clock->regbase + TIMER_CLEAR);
-		writel(~0, clock->regbase + TIMER_MATCH_VAL);
-		local_timer_inited = true;
-	}
-	evt->irq = clock->irq;
+	writel_relaxed(0, event_base + TIMER_ENABLE);
+	writel_relaxed(0, event_base + TIMER_CLEAR);
+	writel_relaxed(~0, event_base + TIMER_MATCH_VAL);
+	evt->irq = msm_clockevent.irq;
 	evt->name = "local_timer";
-	evt->features = CLOCK_EVT_FEAT_ONESHOT;
-	evt->rating = clock->clockevent.rating;
+	evt->features = msm_clockevent.features;
+	evt->rating = msm_clockevent.rating;
 	evt->set_mode = msm_timer_set_mode;
 	evt->set_next_event = msm_timer_set_next_event;
-	evt->shift = clock->clockevent.shift;
-	evt->mult = div_sc(clock->freq, NSEC_PER_SEC, evt->shift);
-	evt->max_delta_ns =
-		clockevent_delta2ns(0xf0000000 >> clock->shift, evt);
+	evt->shift = msm_clockevent.shift;
+	evt->mult = div_sc(GPT_HZ, NSEC_PER_SEC, evt->shift);
+	evt->max_delta_ns = clockevent_delta2ns(0xf0000000, evt);
 	evt->min_delta_ns = clockevent_delta2ns(4, evt);
 
-	*__this_cpu_ptr(clock->percpu_evt) = evt;
-	enable_percpu_irq(evt->irq, 0);
-
+	*__this_cpu_ptr(msm_evt.percpu_evt) = evt;
 	clockevents_register_device(evt);
+	enable_percpu_irq(evt->irq, 0);
 	return 0;
 }
 
@@ -321,8 +223,7 @@ void local_timer_stop(struct clock_event_device *evt)
 	evt->set_mode(CLOCK_EVT_MODE_UNUSED, evt);
 	disable_percpu_irq(evt->irq);
 }
-
-#endif
+#endif /* CONFIG_LOCAL_TIMERS */
 
 struct sys_timer msm_timer = {
 	.init = msm_timer_init
diff --git a/arch/arm/mach-mv78xx0/addr-map.c b/arch/arm/mach-mv78xx0/addr-map.c
index 311d5b0e9bc7..62b53d710efd 100644
--- a/arch/arm/mach-mv78xx0/addr-map.c
+++ b/arch/arm/mach-mv78xx0/addr-map.c
@@ -12,12 +12,12 @@
 #include <linux/init.h>
 #include <linux/mbus.h>
 #include <linux/io.h>
+#include <plat/addr-map.h>
 #include "common.h"
 
 /*
  * Generic Address Decode Windows bit settings
  */
-#define TARGET_DDR		0
 #define TARGET_DEV_BUS		1
 #define TARGET_PCIE0		4
 #define TARGET_PCIE1		8
@@ -32,23 +32,10 @@
 #define ATTR_PCIE_MEM(l)	(0xf8 & ~(0x10 << (l)))
 
 /*
- * Helpers to get DDR bank info
- */
-#define DDR_BASE_CS_OFF(n)	(0x0000 + ((n) << 3))
-#define DDR_SIZE_CS_OFF(n)	(0x0004 + ((n) << 3))
-
-/*
  * CPU Address Decode Windows registers
  */
 #define WIN0_OFF(n)		(BRIDGE_VIRT_BASE + 0x0000 + ((n) << 4))
 #define WIN8_OFF(n)		(BRIDGE_VIRT_BASE + 0x0900 + (((n) - 8) << 4))
-#define WIN_CTRL_OFF		0x0000
-#define WIN_BASE_OFF		0x0004
-#define WIN_REMAP_LO_OFF	0x0008
-#define WIN_REMAP_HI_OFF	0x000c
-
-
-struct mbus_dram_target_info mv78xx0_mbus_dram_info;
 
 static void __init __iomem *win_cfg_base(int win)
 {
@@ -63,94 +50,43 @@ static void __init __iomem *win_cfg_base(int win)
 	return (void __iomem *)((win < 8) ? WIN0_OFF(win) : WIN8_OFF(win));
 }
 
-static int __init cpu_win_can_remap(int win)
-{
-	if (win < 8)
-		return 1;
-
-	return 0;
-}
-
-static void __init setup_cpu_win(int win, u32 base, u32 size,
-				 u8 target, u8 attr, int remap)
-{
-	void __iomem *addr = win_cfg_base(win);
-	u32 ctrl;
-
-	base &= 0xffff0000;
-	ctrl = ((size - 1) & 0xffff0000) | (attr << 8) | (target << 4) | 1;
-
-	writel(base, addr + WIN_BASE_OFF);
-	writel(ctrl, addr + WIN_CTRL_OFF);
-	if (cpu_win_can_remap(win)) {
-		if (remap < 0)
-			remap = base;
-
-		writel(remap & 0xffff0000, addr + WIN_REMAP_LO_OFF);
-		writel(0, addr + WIN_REMAP_HI_OFF);
-	}
-}
+/*
+ * Description of the windows needed by the platform code
+ */
+static struct __initdata orion_addr_map_cfg addr_map_cfg = {
+	.num_wins = 14,
+	.remappable_wins = 8,
+	.win_cfg_base = win_cfg_base,
+};
 
 void __init mv78xx0_setup_cpu_mbus(void)
 {
-	void __iomem *addr;
-	int i;
-	int cs;
-
 	/*
-	 * First, disable and clear windows.
+	 * Disable, clear and configure windows.
 	 */
-	for (i = 0; i < 14; i++) {
-		addr = win_cfg_base(i);
-
-		writel(0, addr + WIN_BASE_OFF);
-		writel(0, addr + WIN_CTRL_OFF);
-		if (cpu_win_can_remap(i)) {
-			writel(0, addr + WIN_REMAP_LO_OFF);
-			writel(0, addr + WIN_REMAP_HI_OFF);
-		}
-	}
+	orion_config_wins(&addr_map_cfg, NULL);
 
 	/*
 	 * Setup MBUS dram target info.
 	 */
-	mv78xx0_mbus_dram_info.mbus_dram_target_id = TARGET_DDR;
-
 	if (mv78xx0_core_index() == 0)
-		addr = (void __iomem *)DDR_WINDOW_CPU0_BASE;
+		orion_setup_cpu_mbus_target(&addr_map_cfg,
+					    DDR_WINDOW_CPU0_BASE);
 	else
-		addr = (void __iomem *)DDR_WINDOW_CPU1_BASE;
-
-	for (i = 0, cs = 0; i < 4; i++) {
-		u32 base = readl(addr + DDR_BASE_CS_OFF(i));
-		u32 size = readl(addr + DDR_SIZE_CS_OFF(i));
-
-		/*
-		 * Chip select enabled?
-		 */
-		if (size & 1) {
-			struct mbus_dram_window *w;
-
-			w = &mv78xx0_mbus_dram_info.cs[cs++];
-			w->cs_index = i;
-			w->mbus_attr = 0xf & ~(1 << i);
-			w->base = base & 0xffff0000;
-			w->size = (size | 0x0000ffff) + 1;
-		}
-	}
-	mv78xx0_mbus_dram_info.num_cs = cs;
+		orion_setup_cpu_mbus_target(&addr_map_cfg,
+					    DDR_WINDOW_CPU1_BASE);
 }
 
 void __init mv78xx0_setup_pcie_io_win(int window, u32 base, u32 size,
 				      int maj, int min)
 {
-	setup_cpu_win(window, base, size, TARGET_PCIE(maj),
-		      ATTR_PCIE_IO(min), -1);
+	orion_setup_cpu_win(&addr_map_cfg, window, base, size,
+			    TARGET_PCIE(maj), ATTR_PCIE_IO(min), -1);
 }
 
 void __init mv78xx0_setup_pcie_mem_win(int window, u32 base, u32 size,
 				       int maj, int min)
 {
-	setup_cpu_win(window, base, size, TARGET_PCIE(maj),
-		      ATTR_PCIE_MEM(min), -1);
+	orion_setup_cpu_win(&addr_map_cfg, window, base, size,
+			    TARGET_PCIE(maj), ATTR_PCIE_MEM(min), -1);
 }
diff --git a/arch/arm/mach-mv78xx0/common.c b/arch/arm/mach-mv78xx0/common.c
index 5b9632b01169..0cdd41004ad0 100644
--- a/arch/arm/mach-mv78xx0/common.c
+++ b/arch/arm/mach-mv78xx0/common.c
@@ -12,7 +12,6 @@
 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/serial_8250.h>
-#include <linux/mbus.h>
 #include <linux/ata_platform.h>
 #include <linux/ethtool.h>
 #include <asm/mach/map.h>
@@ -23,6 +22,7 @@
 #include <plat/orion_nand.h>
 #include <plat/time.h>
 #include <plat/common.h>
+#include <plat/addr-map.h>
 #include "common.h"
 
 static int get_tclk(void);
@@ -169,8 +169,7 @@ void __init mv78xx0_map_io(void)
  ****************************************************************************/
 void __init mv78xx0_ehci0_init(void)
 {
-	orion_ehci_init(&mv78xx0_mbus_dram_info,
-			USB0_PHYS_BASE, IRQ_MV78XX0_USB_0);
+	orion_ehci_init(USB0_PHYS_BASE, IRQ_MV78XX0_USB_0);
 }
 
 
@@ -179,8 +178,7 @@ void __init mv78xx0_ehci0_init(void)
  ****************************************************************************/
 void __init mv78xx0_ehci1_init(void)
 {
-	orion_ehci_1_init(&mv78xx0_mbus_dram_info,
-			  USB1_PHYS_BASE, IRQ_MV78XX0_USB_1);
+	orion_ehci_1_init(USB1_PHYS_BASE, IRQ_MV78XX0_USB_1);
 }
 
 
@@ -189,8 +187,7 @@ void __init mv78xx0_ehci1_init(void)
  ****************************************************************************/
 void __init mv78xx0_ehci2_init(void)
 {
-	orion_ehci_2_init(&mv78xx0_mbus_dram_info,
-			  USB2_PHYS_BASE, IRQ_MV78XX0_USB_2);
+	orion_ehci_2_init(USB2_PHYS_BASE, IRQ_MV78XX0_USB_2);
 }
 
 
@@ -199,7 +196,7 @@ void __init mv78xx0_ehci2_init(void)
  ****************************************************************************/
 void __init mv78xx0_ge00_init(struct mv643xx_eth_platform_data *eth_data)
 {
-	orion_ge00_init(eth_data, &mv78xx0_mbus_dram_info,
+	orion_ge00_init(eth_data,
 			GE00_PHYS_BASE, IRQ_MV78XX0_GE00_SUM,
 			IRQ_MV78XX0_GE_ERR, get_tclk());
 }
@@ -210,7 +207,7 @@ void __init mv78xx0_ge00_init(struct mv643xx_eth_platform_data *eth_data)
  ****************************************************************************/
 void __init mv78xx0_ge01_init(struct mv643xx_eth_platform_data *eth_data)
 {
-	orion_ge01_init(eth_data, &mv78xx0_mbus_dram_info,
+	orion_ge01_init(eth_data,
 			GE01_PHYS_BASE, IRQ_MV78XX0_GE01_SUM,
 			NO_IRQ, get_tclk());
 }
@@ -234,7 +231,7 @@ void __init mv78xx0_ge10_init(struct mv643xx_eth_platform_data *eth_data)
 		eth_data->duplex = DUPLEX_FULL;
 	}
 
-	orion_ge10_init(eth_data, &mv78xx0_mbus_dram_info,
+	orion_ge10_init(eth_data,
 			GE10_PHYS_BASE, IRQ_MV78XX0_GE10_SUM,
 			NO_IRQ, get_tclk());
 }
@@ -258,7 +255,7 @@ void __init mv78xx0_ge11_init(struct mv643xx_eth_platform_data *eth_data)
 		eth_data->duplex = DUPLEX_FULL;
 	}
 
-	orion_ge11_init(eth_data, &mv78xx0_mbus_dram_info,
+	orion_ge11_init(eth_data,
 			GE11_PHYS_BASE, IRQ_MV78XX0_GE11_SUM,
 			NO_IRQ, get_tclk());
 }
@@ -277,8 +274,7 @@ void __init mv78xx0_i2c_init(void)
  ****************************************************************************/
 void __init mv78xx0_sata_init(struct mv_sata_platform_data *sata_data)
 {
-	orion_sata_init(sata_data, &mv78xx0_mbus_dram_info,
-			SATA_PHYS_BASE, IRQ_MV78XX0_SATA);
+	orion_sata_init(sata_data, SATA_PHYS_BASE, IRQ_MV78XX0_SATA);
 }
 
 
diff --git a/arch/arm/mach-mv78xx0/common.h b/arch/arm/mach-mv78xx0/common.h
index 07d5f8f6be7d..507c767d49e0 100644
--- a/arch/arm/mach-mv78xx0/common.h
+++ b/arch/arm/mach-mv78xx0/common.h
@@ -23,7 +23,6 @@ void mv78xx0_init(void);
 void mv78xx0_init_early(void);
 void mv78xx0_init_irq(void);
 
-extern struct mbus_dram_target_info mv78xx0_mbus_dram_info;
 void mv78xx0_setup_cpu_mbus(void);
 void mv78xx0_setup_pcie_io_win(int window, u32 base, u32 size,
 			       int maj, int min);
diff --git a/arch/arm/mach-mv78xx0/mpp.c b/arch/arm/mach-mv78xx0/mpp.c
index cf4e494d44bf..df50342179e2 100644
--- a/arch/arm/mach-mv78xx0/mpp.c
+++ b/arch/arm/mach-mv78xx0/mpp.c
@@ -10,7 +10,6 @@
 #include <linux/gpio.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <linux/mbus.h>
 #include <linux/io.h>
 #include <plat/mpp.h>
 #include <mach/hardware.h>
diff --git a/arch/arm/mach-mv78xx0/pcie.c b/arch/arm/mach-mv78xx0/pcie.c
index c51af1cac300..12fcb108b0e1 100644
--- a/arch/arm/mach-mv78xx0/pcie.c
+++ b/arch/arm/mach-mv78xx0/pcie.c
@@ -10,11 +10,11 @@
 
 #include <linux/kernel.h>
 #include <linux/pci.h>
-#include <linux/mbus.h>
 #include <video/vga.h>
 #include <asm/irq.h>
 #include <asm/mach/pci.h>
 #include <plat/pcie.h>
+#include <plat/addr-map.h>
 #include "common.h"
 
 struct pcie_port {
@@ -153,7 +153,7 @@ static int __init mv78xx0_pcie_setup(int nr, struct pci_sys_data *sys)
 	 * Generic PCIe unit setup.
 	 */
 	orion_pcie_set_local_bus_nr(pp->base, sys->busnr);
-	orion_pcie_setup(pp->base, &mv78xx0_mbus_dram_info);
+	orion_pcie_setup(pp->base);
 
 	sys->resource[0] = &pp->res[0];
 	sys->resource[1] = &pp->res[1];
diff --git a/arch/arm/mach-mx5/mm.c b/arch/arm/mach-mx5/mm.c
index df4a508f240a..bc17dfea3817 100644
--- a/arch/arm/mach-mx5/mm.c
+++ b/arch/arm/mach-mx5/mm.c
@@ -13,6 +13,7 @@
 
 #include <linux/mm.h>
 #include <linux/init.h>
+#include <linux/clk.h>
 
 #include <asm/mach/map.h>
 
@@ -21,10 +22,26 @@
 #include <mach/devices-common.h>
 #include <mach/iomux-v3.h>
 
+static struct clk *gpc_dvfs_clk;
+
 static void imx5_idle(void)
 {
-	if (!need_resched())
+	if (!need_resched()) {
+		/* gpc clock is needed for SRPG */
+		if (gpc_dvfs_clk == NULL) {
+			gpc_dvfs_clk = clk_get(NULL, "gpc_dvfs");
+			if (IS_ERR(gpc_dvfs_clk))
+				goto err0;
+		}
+		clk_enable(gpc_dvfs_clk);
 		mx5_cpu_lp_set(WAIT_UNCLOCKED_POWER_OFF);
+		if (tzic_enable_wake())
+			goto err1;
+		cpu_do_idle();
+err1:
+		clk_disable(gpc_dvfs_clk);
+	}
+err0:
 	local_irq_enable();
 }
 
diff --git a/arch/arm/mach-mx5/system.c b/arch/arm/mach-mx5/system.c
index 144ebebc4a61..5eebfaad1226 100644
--- a/arch/arm/mach-mx5/system.c
+++ b/arch/arm/mach-mx5/system.c
@@ -55,9 +55,6 @@ void mx5_cpu_lp_set(enum mxc_cpu_pwr_mode mode)
 			stop_mode = 1;
 		}
 		arm_srpgcr |= MXC_SRPGCR_PCR;
-
-		if (tzic_enable_wake(1) != 0)
-			return;
 		break;
 	case STOP_POWER_ON:
 		ccm_clpcr |= 0x2 << MXC_CCM_CLPCR_LPM_OFFSET;
diff --git a/arch/arm/mach-mxs/clock-mx23.c b/arch/arm/mach-mxs/clock-mx23.c
index 0163b6d83773..e12e11231dc7 100644
--- a/arch/arm/mach-mxs/clock-mx23.c
+++ b/arch/arm/mach-mxs/clock-mx23.c
@@ -545,11 +545,11 @@ int __init mx23_clocks_init(void)
 	 */
 	clk_set_parent(&ssp_clk, &ref_io_clk);
 
-	clk_enable(&cpu_clk);
-	clk_enable(&hbus_clk);
-	clk_enable(&xbus_clk);
-	clk_enable(&emi_clk);
-	clk_enable(&uart_clk);
+	clk_prepare_enable(&cpu_clk);
+	clk_prepare_enable(&hbus_clk);
+	clk_prepare_enable(&xbus_clk);
+	clk_prepare_enable(&emi_clk);
+	clk_prepare_enable(&uart_clk);
 
 	clkdev_add_table(lookups, ARRAY_SIZE(lookups));
 
diff --git a/arch/arm/mach-mxs/clock-mx28.c b/arch/arm/mach-mxs/clock-mx28.c
index da6e4aad177c..5d68e4152220 100644
--- a/arch/arm/mach-mxs/clock-mx28.c
+++ b/arch/arm/mach-mxs/clock-mx28.c
@@ -22,6 +22,7 @@
 #include <linux/io.h>
 #include <linux/jiffies.h>
 #include <linux/clkdev.h>
+#include <linux/spinlock.h>
 
 #include <asm/clkdev.h>
 #include <asm/div64.h>
@@ -29,6 +30,7 @@
 #include <mach/mx28.h>
 #include <mach/common.h>
 #include <mach/clock.h>
+#include <mach/digctl.h>
 
 #include "regs-clkctrl-mx28.h"
 
@@ -43,6 +45,33 @@ static struct clk emi_clk;
 static struct clk saif0_clk;
 static struct clk saif1_clk;
 static struct clk clk32k_clk;
+static DEFINE_SPINLOCK(clkmux_lock);
+
+/*
+ * HW_SAIF_CLKMUX_SEL:
+ *  DIRECT(0x0): SAIF0 clock pins selected for SAIF0 input clocks, and SAIF1
+ *		clock pins selected for SAIF1 input clocks.
+ *  CROSSINPUT(0x1): SAIF1 clock inputs selected for SAIF0 input clocks, and
+ *		SAIF0 clock inputs selected for SAIF1 input clocks.
+ *  EXTMSTR0(0x2): SAIF0 clock pin selected for both SAIF0 and SAIF1 input
+ *		clocks.
+ *  EXTMSTR1(0x3): SAIF1 clock pin selected for both SAIF0 and SAIF1 input
+ *		clocks.
+ */
+int mxs_saif_clkmux_select(unsigned int clkmux)
+{
+	if (clkmux > 0x3)
+		return -EINVAL;
+
+	spin_lock(&clkmux_lock);
+	__raw_writel(BM_DIGCTL_CTRL_SAIF_CLKMUX,
+			DIGCTRL_BASE_ADDR + HW_DIGCTL_CTRL + MXS_CLR_ADDR);
+	__raw_writel(clkmux << BP_DIGCTL_CTRL_SAIF_CLKMUX,
+			DIGCTRL_BASE_ADDR + HW_DIGCTL_CTRL + MXS_SET_ADDR);
+	spin_unlock(&clkmux_lock);
+
+	return 0;
+}
 
 static int _raw_clk_enable(struct clk *clk)
 {
@@ -775,16 +804,25 @@ int __init mx28_clocks_init(void)
 	clk_set_parent(&ssp0_clk, &ref_io0_clk);
 	clk_set_parent(&ssp1_clk, &ref_io0_clk);
 
-	clk_enable(&cpu_clk);
-	clk_enable(&hbus_clk);
-	clk_enable(&xbus_clk);
-	clk_enable(&emi_clk);
-	clk_enable(&uart_clk);
+	clk_prepare_enable(&cpu_clk);
+	clk_prepare_enable(&hbus_clk);
+	clk_prepare_enable(&xbus_clk);
+	clk_prepare_enable(&emi_clk);
+	clk_prepare_enable(&uart_clk);
 
 	clk_set_parent(&lcdif_clk, &ref_pix_clk);
 	clk_set_parent(&saif0_clk, &pll0_clk);
 	clk_set_parent(&saif1_clk, &pll0_clk);
 
+	/*
+	 * Set an initial clock rate for the saif internal logic to work
+	 * properly. This is important when working in EXTMASTER mode that
+	 * uses the other saif's BITCLK&LRCLK but it still needs a basic
+	 * clock which should be fast enough for the internal logic.
+	 */
+	clk_set_rate(&saif0_clk, 24000000);
+	clk_set_rate(&saif1_clk, 24000000);
+
 	clkdev_add_table(lookups, ARRAY_SIZE(lookups));
 
 	mxs_timer_init(&clk32k_clk, MX28_INT_TIMER0);
diff --git a/arch/arm/mach-mxs/clock.c b/arch/arm/mach-mxs/clock.c
index a7093c88e6a6..97a6f4acc6cc 100644
--- a/arch/arm/mach-mxs/clock.c
+++ b/arch/arm/mach-mxs/clock.c
@@ -74,10 +74,15 @@ static int __clk_enable(struct clk *clk)
 	return 0;
 }
 
-/* This function increments the reference count on the clock and enables the
- * clock if not already enabled. The parent clock tree is recursively enabled
+/*
+ * The clk_enable/clk_disable could be called by drivers in atomic context,
+ * so they should not really hold mutex.  Instead, clk_prepare/clk_unprepare
+ * can hold a mutex, as the pair will only be called in non-atomic context.
+ * Before migrating to common clk framework, we can have __clk_enable and
+ * __clk_disable called in clk_prepare/clk_unprepare with mutex held and
+ * leave clk_enable/clk_disable as the dummy functions.
  */
-int clk_enable(struct clk *clk)
+int clk_prepare(struct clk *clk)
 {
 	int ret = 0;
 
@@ -90,13 +95,9 @@ int clk_enable(struct clk *clk)
 
 	return ret;
 }
-EXPORT_SYMBOL(clk_enable);
+EXPORT_SYMBOL(clk_prepare);
 
-/* This function decrements the reference count on the clock and disables
- * the clock when reference count is 0. The parent clock tree is
- * recursively disabled
- */
-void clk_disable(struct clk *clk)
+void clk_unprepare(struct clk *clk)
 {
 	if (clk == NULL || IS_ERR(clk))
 		return;
@@ -105,6 +106,18 @@ void clk_disable(struct clk *clk)
 	__clk_disable(clk);
 	mutex_unlock(&clocks_mutex);
 }
+EXPORT_SYMBOL(clk_unprepare);
+
+int clk_enable(struct clk *clk)
+{
+	return 0;
+}
+EXPORT_SYMBOL(clk_enable);
+
+void clk_disable(struct clk *clk)
+{
+	/* nothing to do */
+}
 EXPORT_SYMBOL(clk_disable);
 
 /* Retrieve the *current* clock rate. If the clock itself
@@ -166,7 +179,7 @@ int clk_set_parent(struct clk *clk, struct clk *parent)
 		return ret;
 
 	if (clk->usecount)
-		clk_enable(parent);
+		clk_prepare_enable(parent);
 
 	mutex_lock(&clocks_mutex);
 	ret = clk->set_parent(clk, parent);
diff --git a/arch/arm/mach-mxs/devices-mx28.h b/arch/arm/mach-mxs/devices-mx28.h
index c8887103f0e3..4f50094e293d 100644
--- a/arch/arm/mach-mxs/devices-mx28.h
+++ b/arch/arm/mach-mxs/devices-mx28.h
@@ -47,6 +47,7 @@ struct platform_device *__init mx28_add_mxsfb(
 		const struct mxsfb_platform_data *pdata);
 
 extern const struct mxs_saif_data mx28_saif_data[] __initconst;
-#define mx28_add_saif(id)              mxs_add_saif(&mx28_saif_data[id])
+#define mx28_add_saif(id, pdata) \
+	mxs_add_saif(&mx28_saif_data[id], pdata)
 
 struct platform_device *__init mx28_add_rtc_stmp3xxx(void);
diff --git a/arch/arm/mach-mxs/devices/platform-mxs-saif.c b/arch/arm/mach-mxs/devices/platform-mxs-saif.c
index 1ec965e9fe92..f6e3a60b4201 100644
--- a/arch/arm/mach-mxs/devices/platform-mxs-saif.c
+++ b/arch/arm/mach-mxs/devices/platform-mxs-saif.c
@@ -32,7 +32,8 @@ const struct mxs_saif_data mx28_saif_data[] __initconst = {
 };
 #endif
 
-struct platform_device *__init mxs_add_saif(const struct mxs_saif_data *data)
+struct platform_device *__init mxs_add_saif(const struct mxs_saif_data *data,
+				const struct mxs_saif_platform_data *pdata)
 {
 	struct resource res[] = {
 		{
@@ -56,5 +57,5 @@ struct platform_device *__init mxs_add_saif(const struct mxs_saif_data *data)
 	};
 
 	return mxs_add_platform_device("mxs-saif", data->id, res,
-					ARRAY_SIZE(res), NULL, 0);
+				ARRAY_SIZE(res), pdata, sizeof(*pdata));
 }
diff --git a/arch/arm/mach-mxs/include/mach/common.h b/arch/arm/mach-mxs/include/mach/common.h
index 1388485414c9..e1237ab25862 100644
--- a/arch/arm/mach-mxs/include/mach/common.h
+++ b/arch/arm/mach-mxs/include/mach/common.h
@@ -17,6 +17,7 @@ extern const u32 *mxs_get_ocotp(void);
 extern int mxs_reset_block(void __iomem *);
 extern void mxs_timer_init(struct clk *, int);
 extern void mxs_restart(char, const char *);
+extern int mxs_saif_clkmux_select(unsigned int clkmux);
 
 extern int mx23_register_gpios(void);
 extern int mx23_clocks_init(void);
diff --git a/arch/arm/mach-mxs/include/mach/devices-common.h b/arch/arm/mach-mxs/include/mach/devices-common.h
index a8080f44c03d..dc369c1239fc 100644
--- a/arch/arm/mach-mxs/include/mach/devices-common.h
+++ b/arch/arm/mach-mxs/include/mach/devices-common.h
@@ -94,6 +94,7 @@ struct platform_device *__init mxs_add_mxs_pwm(
 		resource_size_t iobase, int id);
 
 /* saif */
+#include <sound/saif.h>
 struct mxs_saif_data {
 	int id;
 	resource_size_t iobase;
@@ -103,4 +104,5 @@ struct mxs_saif_data {
 };
 
 struct platform_device *__init mxs_add_saif(
-		const struct mxs_saif_data *data);
+		const struct mxs_saif_data *data,
+		const struct mxs_saif_platform_data *pdata);
diff --git a/arch/arm/mach-mxs/include/mach/digctl.h b/arch/arm/mach-mxs/include/mach/digctl.h
new file mode 100644
index 000000000000..49a888c65d6d
--- /dev/null
+++ b/arch/arm/mach-mxs/include/mach/digctl.h
@@ -0,0 +1,21 @@
+/*
+ * Copyright 2011 Freescale Semiconductor, Inc. All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __MACH_DIGCTL_H__
+#define __MACH_DIGCTL_H__
+
+/* MXS DIGCTL SAIF CLKMUX */
+#define MXS_DIGCTL_SAIF_CLKMUX_DIRECT		0x0
+#define MXS_DIGCTL_SAIF_CLKMUX_CROSSINPUT	0x1
+#define MXS_DIGCTL_SAIF_CLKMUX_EXTMSTR0		0x2
+#define MXS_DIGCTL_SAIF_CLKMUX_EXTMSTR1		0x3
+
+#define HW_DIGCTL_CTRL			0x0
+#define  BP_DIGCTL_CTRL_SAIF_CLKMUX	10
+#define  BM_DIGCTL_CTRL_SAIF_CLKMUX	(0x3 << 10)
+#endif
diff --git a/arch/arm/mach-mxs/mach-mx28evk.c b/arch/arm/mach-mxs/mach-mx28evk.c
index d0cc37fd23a4..fdb0a5664dd6 100644
--- a/arch/arm/mach-mxs/mach-mx28evk.c
+++ b/arch/arm/mach-mxs/mach-mx28evk.c
@@ -27,6 +27,7 @@
 
 #include <mach/common.h>
 #include <mach/iomux-mx28.h>
+#include <mach/digctl.h>
 
 #include "devices-mx28.h"
 
@@ -228,7 +229,7 @@ static void __init mx28evk_fec_reset(void)
 	/* Enable fec phy clock */
 	clk = clk_get_sys("pll2", NULL);
 	if (!IS_ERR(clk))
-		clk_enable(clk);
+		clk_prepare_enable(clk);
 
 	/* Power up fec phy */
 	ret = gpio_request(MX28EVK_FEC_PHY_POWER, "fec-phy-power");
@@ -421,6 +422,18 @@ static struct gpio mx28evk_lcd_gpios[] = {
 	{ MX28EVK_BL_ENABLE, GPIOF_OUT_INIT_HIGH, "bl-enable" },
 };
 
+static const struct mxs_saif_platform_data
+			mx28evk_mxs_saif_pdata[] __initconst = {
+	/* working on EXTMSTR0 mode (saif0 master, saif1 slave) */
+	{
+		.master_mode = 1,
+		.master_id = 0,
+	}, {
+		.master_mode = 0,
+		.master_id = 0,
+	},
+};
+
 static void __init mx28evk_init(void)
 {
 	int ret;
@@ -454,8 +467,9 @@ static void __init mx28evk_init(void)
 	else
 		mx28_add_mxsfb(&mx28evk_mxsfb_pdata);
 
-	mx28_add_saif(0);
-	mx28_add_saif(1);
+	mxs_saif_clkmux_select(MXS_DIGCTL_SAIF_CLKMUX_EXTMSTR0);
+	mx28_add_saif(0, &mx28evk_mxs_saif_pdata[0]);
+	mx28_add_saif(1, &mx28evk_mxs_saif_pdata[1]);
 
 	mx28_add_mxs_i2c(0);
 	i2c_register_board_info(0, mxs_i2c0_board_info,
diff --git a/arch/arm/mach-mxs/system.c b/arch/arm/mach-mxs/system.c
index b936633b7682..54f91ad1c965 100644
--- a/arch/arm/mach-mxs/system.c
+++ b/arch/arm/mach-mxs/system.c
@@ -66,7 +66,7 @@ static int __init mxs_arch_reset_init(void)
 
 	clk = clk_get_sys("rtc", NULL);
 	if (!IS_ERR(clk))
-		clk_enable(clk);
+		clk_prepare_enable(clk);
 
 	return 0;
 }
diff --git a/arch/arm/mach-mxs/timer.c b/arch/arm/mach-mxs/timer.c
index cace0d2e5a55..564a63279f18 100644
--- a/arch/arm/mach-mxs/timer.c
+++ b/arch/arm/mach-mxs/timer.c
@@ -245,7 +245,7 @@ static int __init mxs_clocksource_init(struct clk *timer_clk)
 
 void __init mxs_timer_init(struct clk *timer_clk, int irq)
 {
-	clk_enable(timer_clk);
+	clk_prepare_enable(timer_clk);
 
 	/*
 	 * Initialize timers to a known state
diff --git a/arch/arm/mach-omap1/Kconfig b/arch/arm/mach-omap1/Kconfig
index 73f287d6429b..4f8d66f044e7 100644
--- a/arch/arm/mach-omap1/Kconfig
+++ b/arch/arm/mach-omap1/Kconfig
@@ -168,70 +168,6 @@ config MACH_OMAP_GENERIC
           custom OMAP boards. Say Y here if you have a custom
           board.
 
-comment "OMAP CPU Speed"
-	depends on ARCH_OMAP1
-
-config OMAP_ARM_216MHZ
-	bool "OMAP ARM 216 MHz CPU (1710 only)"
-        depends on ARCH_OMAP1 && ARCH_OMAP16XX
-        help
-          Enable 216 MHz clock for OMAP1710 CPU. If unsure, say N.
-
-config OMAP_ARM_195MHZ
-	bool "OMAP ARM 195 MHz CPU"
-	depends on ARCH_OMAP1 && (ARCH_OMAP730 || ARCH_OMAP850)
-	help
-          Enable 195MHz clock for OMAP CPU. If unsure, say N.
-
-config OMAP_ARM_192MHZ
-	bool "OMAP ARM 192 MHz CPU"
-	depends on ARCH_OMAP1 && ARCH_OMAP16XX
-	help
-          Enable 192MHz clock for OMAP CPU. If unsure, say N.
-
-config OMAP_ARM_182MHZ
-	bool "OMAP ARM 182 MHz CPU"
-	depends on ARCH_OMAP1 && (ARCH_OMAP730 || ARCH_OMAP850)
-	help
-          Enable 182MHz clock for OMAP CPU. If unsure, say N.
-
-config OMAP_ARM_168MHZ
-	bool "OMAP ARM 168 MHz CPU"
-	depends on ARCH_OMAP1 && (ARCH_OMAP15XX || ARCH_OMAP16XX || ARCH_OMAP730 || ARCH_OMAP850)
-	help
-          Enable 168MHz clock for OMAP CPU. If unsure, say N.
-
-config OMAP_ARM_150MHZ
-	bool "OMAP ARM 150 MHz CPU"
-	depends on ARCH_OMAP1 && ARCH_OMAP15XX
-	help
-	  Enable 150MHz clock for OMAP CPU. If unsure, say N.
-
-config OMAP_ARM_120MHZ
-	bool "OMAP ARM 120 MHz CPU"
-	depends on ARCH_OMAP1 && (ARCH_OMAP15XX || ARCH_OMAP16XX || ARCH_OMAP730 || ARCH_OMAP850)
-	help
-          Enable 120MHz clock for OMAP CPU. If unsure, say N.
-
-config OMAP_ARM_96MHZ
-	bool "OMAP ARM 96 MHz CPU"
-	depends on ARCH_OMAP1 && (ARCH_OMAP15XX || ARCH_OMAP16XX || ARCH_OMAP730 || ARCH_OMAP850)
-	help
-          Enable 96MHz clock for OMAP CPU. If unsure, say N.
-
-config OMAP_ARM_60MHZ
-	bool "OMAP ARM 60 MHz CPU"
-	depends on ARCH_OMAP1 && (ARCH_OMAP15XX || ARCH_OMAP16XX || ARCH_OMAP730 || ARCH_OMAP850)
-        default y
-	help
-          Enable 60MHz clock for OMAP CPU. If unsure, say Y.
-
-config OMAP_ARM_30MHZ
-	bool "OMAP ARM 30 MHz CPU"
-	depends on ARCH_OMAP1 && (ARCH_OMAP15XX || ARCH_OMAP16XX || ARCH_OMAP730 || ARCH_OMAP850)
-	help
-          Enable 30MHz clock for OMAP CPU. If unsure, say N.
-
 endmenu
 
 endif
diff --git a/arch/arm/mach-omap1/clock.c b/arch/arm/mach-omap1/clock.c
index 84ef70476b51..0c50df05d135 100644
--- a/arch/arm/mach-omap1/clock.c
+++ b/arch/arm/mach-omap1/clock.c
@@ -197,11 +197,10 @@ int omap1_select_table_rate(struct clk *clk, unsigned long rate)
 	ref_rate = ck_ref_p->rate;
 
 	for (ptr = omap1_rate_table; ptr->rate; ptr++) {
-		if (ptr->xtal != ref_rate)
+		if (!(ptr->flags & cpu_mask))
 			continue;
 
-		/* DPLL1 cannot be reprogrammed without risking system crash */
-		if (likely(dpll1_rate != 0) && ptr->pll_rate != dpll1_rate)
+		if (ptr->xtal != ref_rate)
 			continue;
 
 		/* Can check only after xtal frequency check */
@@ -215,12 +214,8 @@ int omap1_select_table_rate(struct clk *clk, unsigned long rate)
 	/*
 	 * In most cases we should not need to reprogram DPLL.
 	 * Reprogramming the DPLL is tricky, it must be done from SRAM.
-	 * (on 730, bit 13 must always be 1)
 	 */
-	if (cpu_is_omap7xx())
-		omap_sram_reprogram_clock(ptr->dpllctl_val, ptr->ckctl_val | 0x2000);
-	else
-		omap_sram_reprogram_clock(ptr->dpllctl_val, ptr->ckctl_val);
+	omap_sram_reprogram_clock(ptr->dpllctl_val, ptr->ckctl_val);
 
 	/* XXX Do we need to recalculate the tree below DPLL1 at this point? */
 	ck_dpll1_p->rate = ptr->pll_rate;
@@ -290,6 +285,9 @@ long omap1_round_to_table_rate(struct clk *clk, unsigned long rate)
 	highest_rate = -EINVAL;
 
 	for (ptr = omap1_rate_table; ptr->rate; ptr++) {
+		if (!(ptr->flags & cpu_mask))
+			continue;
+
 		if (ptr->xtal != ref_rate)
 			continue;
 
diff --git a/arch/arm/mach-omap1/clock.h b/arch/arm/mach-omap1/clock.h
index 16b1423b454a..3d04f4f67676 100644
--- a/arch/arm/mach-omap1/clock.h
+++ b/arch/arm/mach-omap1/clock.h
@@ -111,4 +111,7 @@ extern const struct clkops clkops_dummy;
 extern const struct clkops clkops_uart_16xx;
 extern const struct clkops clkops_generic;
 
+/* used for passing SoC type to omap1_{select,round_to}_table_rate() */
+extern u32 cpu_mask;
+
 #endif
diff --git a/arch/arm/mach-omap1/clock_data.c b/arch/arm/mach-omap1/clock_data.c
index 9ff90a744a21..94699a82a734 100644
--- a/arch/arm/mach-omap1/clock_data.c
+++ b/arch/arm/mach-omap1/clock_data.c
@@ -25,6 +25,7 @@
 #include <plat/clock.h>
 #include <plat/cpu.h>
 #include <plat/clkdev_omap.h>
+#include <plat/sram.h>	/* for omap_sram_reprogram_clock() */
 #include <plat/usb.h>   /* for OTG_BASE */
 
 #include "clock.h"
@@ -778,12 +779,14 @@ static void __init omap1_show_rates(void)
 		arm_ck.rate / 1000000, (arm_ck.rate / 100000) % 10);
 }
 
+u32 cpu_mask;
+
 int __init omap1_clk_init(void)
 {
 	struct omap_clk *c;
 	const struct omap_clock_config *info;
 	int crystal_type = 0; /* Default 12 MHz */
-	u32 reg, cpu_mask;
+	u32 reg;
 
 #ifdef CONFIG_DEBUG_LL
 	/*
@@ -808,6 +811,8 @@ int __init omap1_clk_init(void)
 		clk_preinit(c->lk.clk);
 
 	cpu_mask = 0;
+	if (cpu_is_omap1710())
+		cpu_mask |= CK_1710;
 	if (cpu_is_omap16xx())
 		cpu_mask |= CK_16XX;
 	if (cpu_is_omap1510())
@@ -931,17 +936,13 @@ void __init omap1_clk_late_init(void)
 {
 	unsigned long rate = ck_dpll1.rate;
 
-	if (rate >= OMAP1_DPLL1_SANE_VALUE)
-		return;
-
-	/* System booting at unusable rate, force reprogramming of DPLL1 */
-	ck_dpll1_p->rate = 0;
-
 	/* Find the highest supported frequency and enable it */
 	if (omap1_select_table_rate(&virtual_ck_mpu, ~0)) {
 		pr_err("System frequencies not set, using default. Check your config.\n");
-		omap_writew(0x2290, DPLL_CTL);
-		omap_writew(cpu_is_omap7xx() ? 0x2005 : 0x0005, ARM_CKCTL);
+		/*
+		 * Reprogramming the DPLL is tricky, it must be done from SRAM.
+		 */
+		omap_sram_reprogram_clock(0x2290, 0x0005);
 		ck_dpll1.rate = OMAP1_DPLL1_SANE_VALUE;
 	}
 	propagate_rate(&ck_dpll1);
diff --git a/arch/arm/mach-omap1/opp.h b/arch/arm/mach-omap1/opp.h
index 07074d79adce..79a683864a5c 100644
--- a/arch/arm/mach-omap1/opp.h
+++ b/arch/arm/mach-omap1/opp.h
@@ -21,6 +21,7 @@ struct mpu_rate {
 	unsigned long		pll_rate;
 	__u16			ckctl_val;
 	__u16			dpllctl_val;
+	u32			flags;
 };
 
 extern struct mpu_rate omap1_rate_table[];
diff --git a/arch/arm/mach-omap1/opp_data.c b/arch/arm/mach-omap1/opp_data.c
index 75a546514994..9cd4ddb51397 100644
--- a/arch/arm/mach-omap1/opp_data.c
+++ b/arch/arm/mach-omap1/opp_data.c
@@ -10,6 +10,7 @@
  * published by the Free Software Foundation.
  */
 
+#include <plat/clkdev_omap.h>
 #include "opp.h"
 
 /*-------------------------------------------------------------------------
@@ -20,40 +21,34 @@ struct mpu_rate omap1_rate_table[] = {
 	 * NOTE: Comment order here is different from bits in CKCTL value:
 	 * armdiv, dspdiv, dspmmu, tcdiv, perdiv, lcddiv
 	 */
-#if defined(CONFIG_OMAP_ARM_216MHZ)
-	{ 216000000, 12000000, 216000000, 0x050d, 0x2910 }, /* 1/1/2/2/2/8 */
-#endif
-#if defined(CONFIG_OMAP_ARM_195MHZ)
-	{ 195000000, 13000000, 195000000, 0x050e, 0x2790 }, /* 1/1/2/2/4/8 */
-#endif
-#if defined(CONFIG_OMAP_ARM_192MHZ)
-	{ 192000000, 19200000, 192000000, 0x050f, 0x2510 }, /* 1/1/2/2/8/8 */
-	{ 192000000, 12000000, 192000000, 0x050f, 0x2810 }, /* 1/1/2/2/8/8 */
-	{  96000000, 12000000, 192000000, 0x055f, 0x2810 }, /* 2/2/2/2/8/8 */
-	{  48000000, 12000000, 192000000, 0x0baf, 0x2810 }, /* 4/4/4/8/8/8 */
-	{  24000000, 12000000, 192000000, 0x0fff, 0x2810 }, /* 8/8/8/8/8/8 */
-#endif
-#if defined(CONFIG_OMAP_ARM_182MHZ)
-	{ 182000000, 13000000, 182000000, 0x050e, 0x2710 }, /* 1/1/2/2/4/8 */
-#endif
-#if defined(CONFIG_OMAP_ARM_168MHZ)
-	{ 168000000, 12000000, 168000000, 0x010f, 0x2710 }, /* 1/1/1/2/8/8 */
-#endif
-#if defined(CONFIG_OMAP_ARM_150MHZ)
-	{ 150000000, 12000000, 150000000, 0x010a, 0x2cb0 }, /* 1/1/1/2/4/4 */
-#endif
-#if defined(CONFIG_OMAP_ARM_120MHZ)
-	{ 120000000, 12000000, 120000000, 0x010a, 0x2510 }, /* 1/1/1/2/4/4 */
-#endif
-#if defined(CONFIG_OMAP_ARM_96MHZ)
-	{  96000000, 12000000,  96000000, 0x0005, 0x2410 }, /* 1/1/1/1/2/2 */
-#endif
-#if defined(CONFIG_OMAP_ARM_60MHZ)
-	{  60000000, 12000000,  60000000, 0x0005, 0x2290 }, /* 1/1/1/1/2/2 */
-#endif
-#if defined(CONFIG_OMAP_ARM_30MHZ)
-	{  30000000, 12000000,  60000000, 0x0555, 0x2290 }, /* 2/2/2/2/2/2 */
-#endif
+	{ 216000000, 12000000, 216000000, 0x050d, 0x2910, /* 1/1/2/2/2/8 */
+			CK_1710 },
+	{ 195000000, 13000000, 195000000, 0x050e, 0x2790, /* 1/1/2/2/4/8 */
+			CK_7XX },
+	{ 192000000, 19200000, 192000000, 0x050f, 0x2510, /* 1/1/2/2/8/8 */
+			CK_16XX },
+	{ 192000000, 12000000, 192000000, 0x050f, 0x2810, /* 1/1/2/2/8/8 */
+			CK_16XX },
+	{  96000000, 12000000, 192000000, 0x055f, 0x2810, /* 2/2/2/2/8/8 */
+			CK_16XX },
+	{  48000000, 12000000, 192000000, 0x0baf, 0x2810, /* 4/4/4/8/8/8 */
+			CK_16XX },
+	{  24000000, 12000000, 192000000, 0x0fff, 0x2810, /* 8/8/8/8/8/8 */
+			CK_16XX },
+	{ 182000000, 13000000, 182000000, 0x050e, 0x2710, /* 1/1/2/2/4/8 */
+			CK_7XX },
+	{ 168000000, 12000000, 168000000, 0x010f, 0x2710, /* 1/1/1/2/8/8 */
+			CK_16XX|CK_7XX },
+	{ 150000000, 12000000, 150000000, 0x010a, 0x2cb0, /* 1/1/1/2/4/4 */
+			CK_1510 },
+	{ 120000000, 12000000, 120000000, 0x010a, 0x2510, /* 1/1/1/2/4/4 */
+			CK_16XX|CK_1510|CK_310|CK_7XX },
+	{  96000000, 12000000,  96000000, 0x0005, 0x2410, /* 1/1/1/1/2/2 */
+			CK_16XX|CK_1510|CK_310|CK_7XX },
+	{  60000000, 12000000,  60000000, 0x0005, 0x2290, /* 1/1/1/1/2/2 */
+			CK_16XX|CK_1510|CK_310|CK_7XX },
+	{  30000000, 12000000,  60000000, 0x0555, 0x2290, /* 2/2/2/2/2/2 */
+			CK_16XX|CK_1510|CK_310|CK_7XX },
 	{ 0, 0, 0, 0, 0 },
 };
 
diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig
index 4f01533083cc..904bd1dfcd2e 100644
--- a/arch/arm/mach-omap2/Kconfig
+++ b/arch/arm/mach-omap2/Kconfig
@@ -78,8 +78,13 @@ config SOC_OMAP3430
 	default y
 	select ARCH_OMAP_OTG
 
-config SOC_OMAPTI816X
-	bool "TI816X support"
+config SOC_OMAPTI81XX
+	bool "TI81XX support"
+	depends on ARCH_OMAP3
+	default y
+
+config SOC_OMAPAM33XX
+	bool "AM33XX support"
 	depends on ARCH_OMAP3
 	default y
 
@@ -316,7 +321,12 @@ config MACH_OMAP_3630SDP
 
 config MACH_TI8168EVM
 	bool "TI8168 Evaluation Module"
-	depends on SOC_OMAPTI816X
+	depends on SOC_OMAPTI81XX
+	default y
+
+config MACH_TI8148EVM
+	bool "TI8148 Evaluation Module"
+	depends on SOC_OMAPTI81XX
 	default y
 
 config MACH_OMAP_4430SDP
@@ -355,6 +365,27 @@ config OMAP3_SDRC_AC_TIMING
 	  wish to say no.  Selecting yes without understanding what is
 	  going on could result in system crashes;
 
+config OMAP4_ERRATA_I688
+	bool "OMAP4 errata: Async Bridge Corruption"
+	depends on ARCH_OMAP4
+	select ARCH_HAS_BARRIERS
+	help
+	  If a data is stalled inside asynchronous bridge because of back
+	  pressure, it may be accepted multiple times, creating pointer
+	  misalignment that will corrupt next transfers on that data path
+	  until next reset of the system (No recovery procedure once the
+	  issue is hit, the path remains consistently broken). Async bridge
+	  can be found on path between MPU to EMIF and MPU to L3 interconnect.
+	  This situation can happen only when the idle is initiated by a
+	  Master Request Disconnection (which is trigged by software when
+	  executing WFI on CPU).
+	  The work-around for this errata needs all the initiators connected
+	  through async bridge must ensure that data path is properly drained
+	  before issuing WFI. This condition will be met if one Strongly ordered
+	  access is performed to the target right before executing the WFI.
+	  In MPU case, L3 T2ASYNC FIFO and DDR T2ASYNC FIFO needs to be drained.
+	  IO barrier ensure that there is no synchronisation loss on initiators
+	  operating on both interconnect port simultaneously.
 endmenu
 
 endif
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index b009f17dee56..fc9b238cbc19 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -11,10 +11,11 @@ hwmod-common				= omap_hwmod.o \
 					  omap_hwmod_common_data.o
 clock-common				= clock.o clock_common_data.o \
 					  clkt_dpll.o clkt_clksel.o
+secure-common                          = omap-smc.o omap-secure.o
 
-obj-$(CONFIG_ARCH_OMAP2) += $(omap-2-3-common) $(hwmod-common)
-obj-$(CONFIG_ARCH_OMAP3) += $(omap-2-3-common) $(hwmod-common)
-obj-$(CONFIG_ARCH_OMAP4) += prm44xx.o $(hwmod-common)
+obj-$(CONFIG_ARCH_OMAP2) += $(omap-2-3-common) $(hwmod-common) $(secure-common)
+obj-$(CONFIG_ARCH_OMAP3) += $(omap-2-3-common) $(hwmod-common) $(secure-common)
+obj-$(CONFIG_ARCH_OMAP4) += prm44xx.o $(hwmod-common) $(secure-common)
 
 obj-$(CONFIG_OMAP_MCBSP) += mcbsp.o
 
@@ -24,11 +25,13 @@ obj-$(CONFIG_TWL4030_CORE) += omap_twl.o
 obj-$(CONFIG_SMP)			+= omap-smp.o omap-headsmp.o
 obj-$(CONFIG_LOCAL_TIMERS)		+= timer-mpu.o
 obj-$(CONFIG_HOTPLUG_CPU)		+= omap-hotplug.o
-obj-$(CONFIG_ARCH_OMAP4)		+= omap44xx-smc.o omap4-common.o
+obj-$(CONFIG_ARCH_OMAP4)		+= omap4-common.o omap-wakeupgen.o \
+					   sleep44xx.o
 
 plus_sec := $(call as-instr,.arch_extension sec,+sec)
 AFLAGS_omap-headsmp.o			:=-Wa,-march=armv7-a$(plus_sec)
-AFLAGS_omap44xx-smc.o			:=-Wa,-march=armv7-a$(plus_sec)
+AFLAGS_omap-smc.o			:=-Wa,-march=armv7-a$(plus_sec)
+AFLAGS_sleep44xx.o			:=-Wa,-march=armv7-a$(plus_sec)
 
 # Functions loaded to SRAM
 obj-$(CONFIG_SOC_OMAP2420)		+= sram242x.o
@@ -62,7 +65,8 @@ obj-$(CONFIG_ARCH_OMAP2)		+= pm24xx.o
 obj-$(CONFIG_ARCH_OMAP2)		+= sleep24xx.o
 obj-$(CONFIG_ARCH_OMAP3)		+= pm34xx.o sleep34xx.o \
 					   cpuidle34xx.o
-obj-$(CONFIG_ARCH_OMAP4)		+= pm44xx.o
+obj-$(CONFIG_ARCH_OMAP4)		+= pm44xx.o omap-mpuss-lowpower.o \
+					   cpuidle44xx.o
 obj-$(CONFIG_PM_DEBUG)			+= pm-debug.o
 obj-$(CONFIG_OMAP_SMARTREFLEX)          += sr_device.o smartreflex.o
 obj-$(CONFIG_OMAP_SMARTREFLEX_CLASS3)	+= smartreflex-class3.o
@@ -77,6 +81,7 @@ endif
 endif
 
 # PRCM
+obj-y					+= prm_common.o
 obj-$(CONFIG_ARCH_OMAP2)		+= prcm.o cm2xxx_3xxx.o prm2xxx_3xxx.o
 obj-$(CONFIG_ARCH_OMAP3)		+= prcm.o cm2xxx_3xxx.o prm2xxx_3xxx.o \
 					   vc3xxx_data.o vp3xxx_data.o
@@ -86,7 +91,7 @@ obj-$(CONFIG_ARCH_OMAP3)		+= prcm.o cm2xxx_3xxx.o prm2xxx_3xxx.o \
 obj-$(CONFIG_ARCH_OMAP4)		+= prcm.o cm2xxx_3xxx.o cminst44xx.o \
 					   cm44xx.o prcm_mpu44xx.o \
 					   prminst44xx.o vc44xx_data.o \
-					   vp44xx_data.o
+					   vp44xx_data.o prm44xx.o
 
 # OMAP voltage domains
 voltagedomain-common			:= voltage.o vc.o vp.o
@@ -232,6 +237,7 @@ obj-$(CONFIG_MACH_CRANEBOARD)		+= board-am3517crane.o
 
 obj-$(CONFIG_MACH_SBC3530)		+= board-omap3stalker.o
 obj-$(CONFIG_MACH_TI8168EVM)		+= board-ti8168evm.o
+obj-$(CONFIG_MACH_TI8148EVM)		+= board-ti8168evm.o
 
 # Platform specific device init code
 
diff --git a/arch/arm/mach-omap2/board-3430sdp.c b/arch/arm/mach-omap2/board-3430sdp.c
index 9996334cb687..383717ba63b9 100644
--- a/arch/arm/mach-omap2/board-3430sdp.c
+++ b/arch/arm/mach-omap2/board-3430sdp.c
@@ -475,106 +475,8 @@ static const struct usbhs_omap_board_data usbhs_bdata __initconst = {
 static struct omap_board_mux board_mux[] __initdata = {
 	{ .reg_offset = OMAP_MUX_TERMINATOR },
 };
-
-static struct omap_device_pad serial1_pads[] __initdata = {
-	/*
-	 * Note that off output enable is an active low
-	 * signal. So setting this means pin is a
-	 * input enabled in off mode
-	 */
-	OMAP_MUX_STATIC("uart1_cts.uart1_cts",
-			 OMAP_PIN_INPUT |
-			 OMAP_PIN_OFF_INPUT_PULLDOWN |
-			 OMAP_OFFOUT_EN |
-			 OMAP_MUX_MODE0),
-	OMAP_MUX_STATIC("uart1_rts.uart1_rts",
-			 OMAP_PIN_OUTPUT |
-			 OMAP_OFF_EN |
-			 OMAP_MUX_MODE0),
-	OMAP_MUX_STATIC("uart1_rx.uart1_rx",
-			 OMAP_PIN_INPUT |
-			 OMAP_PIN_OFF_INPUT_PULLDOWN |
-			 OMAP_OFFOUT_EN |
-			 OMAP_MUX_MODE0),
-	OMAP_MUX_STATIC("uart1_tx.uart1_tx",
-			 OMAP_PIN_OUTPUT |
-			 OMAP_OFF_EN |
-			 OMAP_MUX_MODE0),
-};
-
-static struct omap_device_pad serial2_pads[] __initdata = {
-	OMAP_MUX_STATIC("uart2_cts.uart2_cts",
-			 OMAP_PIN_INPUT_PULLUP |
-			 OMAP_PIN_OFF_INPUT_PULLDOWN |
-			 OMAP_OFFOUT_EN |
-			 OMAP_MUX_MODE0),
-	OMAP_MUX_STATIC("uart2_rts.uart2_rts",
-			 OMAP_PIN_OUTPUT |
-			 OMAP_OFF_EN |
-			 OMAP_MUX_MODE0),
-	OMAP_MUX_STATIC("uart2_rx.uart2_rx",
-			 OMAP_PIN_INPUT |
-			 OMAP_PIN_OFF_INPUT_PULLDOWN |
-			 OMAP_OFFOUT_EN |
-			 OMAP_MUX_MODE0),
-	OMAP_MUX_STATIC("uart2_tx.uart2_tx",
-			 OMAP_PIN_OUTPUT |
-			 OMAP_OFF_EN |
-			 OMAP_MUX_MODE0),
-};
-
-static struct omap_device_pad serial3_pads[] __initdata = {
-	OMAP_MUX_STATIC("uart3_cts_rctx.uart3_cts_rctx",
-			 OMAP_PIN_INPUT_PULLDOWN |
-			 OMAP_PIN_OFF_INPUT_PULLDOWN |
-			 OMAP_OFFOUT_EN |
-			 OMAP_MUX_MODE0),
-	OMAP_MUX_STATIC("uart3_rts_sd.uart3_rts_sd",
-			 OMAP_PIN_OUTPUT |
-			 OMAP_OFF_EN |
-			 OMAP_MUX_MODE0),
-	OMAP_MUX_STATIC("uart3_rx_irrx.uart3_rx_irrx",
-			 OMAP_PIN_INPUT |
-			 OMAP_PIN_OFF_INPUT_PULLDOWN |
-			 OMAP_OFFOUT_EN |
-			 OMAP_MUX_MODE0),
-	OMAP_MUX_STATIC("uart3_tx_irtx.uart3_tx_irtx",
-			 OMAP_PIN_OUTPUT |
-			 OMAP_OFF_EN |
-			 OMAP_MUX_MODE0),
-};
-
-static struct omap_board_data serial1_data __initdata = {
-	.id		= 0,
-	.pads		= serial1_pads,
-	.pads_cnt	= ARRAY_SIZE(serial1_pads),
-};
-
-static struct omap_board_data serial2_data __initdata = {
-	.id		= 1,
-	.pads		= serial2_pads,
-	.pads_cnt	= ARRAY_SIZE(serial2_pads),
-};
-
-static struct omap_board_data serial3_data __initdata = {
-	.id		= 2,
-	.pads		= serial3_pads,
-	.pads_cnt	= ARRAY_SIZE(serial3_pads),
-};
-
-static inline void board_serial_init(void)
-{
-	omap_serial_init_port(&serial1_data);
-	omap_serial_init_port(&serial2_data);
-	omap_serial_init_port(&serial3_data);
-}
 #else
 #define board_mux	NULL
-
-static inline void board_serial_init(void)
-{
-	omap_serial_init();
-}
 #endif
 
 /*
@@ -711,7 +613,7 @@ static void __init omap_3430sdp_init(void)
 	else
 		gpio_pendown = SDP3430_TS_GPIO_IRQ_SDPV1;
 	omap_ads7846_init(1, gpio_pendown, 310, NULL);
-	board_serial_init();
+	omap_serial_init();
 	omap_sdrc_init(hyb18m512160af6_sdrc_params, NULL);
 	usb_musb_init(NULL);
 	board_smc91x_init();
diff --git a/arch/arm/mach-omap2/board-4430sdp.c b/arch/arm/mach-omap2/board-4430sdp.c
index bad5d5a5ef79..2ceb75d21eb2 100644
--- a/arch/arm/mach-omap2/board-4430sdp.c
+++ b/arch/arm/mach-omap2/board-4430sdp.c
@@ -372,11 +372,17 @@ static struct platform_device sdp4430_vbat = {
 	},
 };
 
+static struct platform_device sdp4430_dmic_codec = {
+	.name	= "dmic-codec",
+	.id	= -1,
+};
+
 static struct platform_device *sdp4430_devices[] __initdata = {
 	&sdp4430_gpio_keys_device,
 	&sdp4430_leds_gpio,
 	&sdp4430_leds_pwm,
 	&sdp4430_vbat,
+	&sdp4430_dmic_codec,
 };
 
 static struct omap_musb_board_data musb_board_data = {
@@ -404,6 +410,7 @@ static struct omap2_hsmmc_info mmc[] = {
 	{
 		.mmc		= 5,
 		.caps		= MMC_CAP_4_BIT_DATA | MMC_CAP_POWER_OFF_CARD,
+		.pm_caps	= MMC_PM_KEEP_POWER,
 		.gpio_cd	= -EINVAL,
 		.gpio_wp	= -EINVAL,
 		.ocr_mask	= MMC_VDD_165_195,
@@ -837,74 +844,8 @@ static struct omap_board_mux board_mux[] __initdata = {
 	{ .reg_offset = OMAP_MUX_TERMINATOR },
 };
 
-static struct omap_device_pad serial2_pads[] __initdata = {
-	OMAP_MUX_STATIC("uart2_cts.uart2_cts",
-			 OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0),
-	OMAP_MUX_STATIC("uart2_rts.uart2_rts",
-			 OMAP_PIN_OUTPUT | OMAP_MUX_MODE0),
-	OMAP_MUX_STATIC("uart2_rx.uart2_rx",
-			 OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0),
-	OMAP_MUX_STATIC("uart2_tx.uart2_tx",
-			 OMAP_PIN_OUTPUT | OMAP_MUX_MODE0),
-};
-
-static struct omap_device_pad serial3_pads[] __initdata = {
-	OMAP_MUX_STATIC("uart3_cts_rctx.uart3_cts_rctx",
-			 OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0),
-	OMAP_MUX_STATIC("uart3_rts_sd.uart3_rts_sd",
-			 OMAP_PIN_OUTPUT | OMAP_MUX_MODE0),
-	OMAP_MUX_STATIC("uart3_rx_irrx.uart3_rx_irrx",
-			 OMAP_PIN_INPUT | OMAP_MUX_MODE0),
-	OMAP_MUX_STATIC("uart3_tx_irtx.uart3_tx_irtx",
-			 OMAP_PIN_OUTPUT | OMAP_MUX_MODE0),
-};
-
-static struct omap_device_pad serial4_pads[] __initdata = {
-	OMAP_MUX_STATIC("uart4_rx.uart4_rx",
-			 OMAP_PIN_INPUT | OMAP_MUX_MODE0),
-	OMAP_MUX_STATIC("uart4_tx.uart4_tx",
-			 OMAP_PIN_OUTPUT | OMAP_MUX_MODE0),
-};
-
-static struct omap_board_data serial2_data __initdata = {
-	.id		= 1,
-	.pads		= serial2_pads,
-	.pads_cnt	= ARRAY_SIZE(serial2_pads),
-};
-
-static struct omap_board_data serial3_data __initdata = {
-	.id		= 2,
-	.pads		= serial3_pads,
-	.pads_cnt	= ARRAY_SIZE(serial3_pads),
-};
-
-static struct omap_board_data serial4_data __initdata = {
-	.id		= 3,
-	.pads		= serial4_pads,
-	.pads_cnt	= ARRAY_SIZE(serial4_pads),
-};
-
-static inline void board_serial_init(void)
-{
-	struct omap_board_data bdata;
-	bdata.flags	= 0;
-	bdata.pads	= NULL;
-	bdata.pads_cnt	= 0;
-	bdata.id	= 0;
-	/* pass dummy data for UART1 */
-	omap_serial_init_port(&bdata);
-
-	omap_serial_init_port(&serial2_data);
-	omap_serial_init_port(&serial3_data);
-	omap_serial_init_port(&serial4_data);
-}
 #else
 #define board_mux	NULL
-
-static inline void board_serial_init(void)
-{
-	omap_serial_init();
-}
  #endif
 
 static void omap4_sdp4430_wifi_mux_init(void)
@@ -954,7 +895,7 @@ static void __init omap_4430sdp_init(void)
 	omap4_i2c_init();
 	omap_sfh7741prox_init();
 	platform_add_devices(sdp4430_devices, ARRAY_SIZE(sdp4430_devices));
-	board_serial_init();
+	omap_serial_init();
 	omap_sdrc_init(NULL, NULL);
 	omap4_sdp4430_wifi_init();
 	omap4_twl6030_hsmmc_init(mmc);
diff --git a/arch/arm/mach-omap2/board-am3517evm.c b/arch/arm/mach-omap2/board-am3517evm.c
index f5a3a3f11739..4b1cfe32e6ba 100644
--- a/arch/arm/mach-omap2/board-am3517evm.c
+++ b/arch/arm/mach-omap2/board-am3517evm.c
@@ -24,6 +24,7 @@
 #include <linux/i2c/pca953x.h>
 #include <linux/can/platform/ti_hecc.h>
 #include <linux/davinci_emac.h>
+#include <linux/mmc/host.h>
 
 #include <mach/hardware.h>
 #include <mach/am35xx.h>
@@ -40,6 +41,7 @@
 
 #include "mux.h"
 #include "control.h"
+#include "hsmmc.h"
 
 #define AM35XX_EVM_MDIO_FREQUENCY	(1000000)
 
@@ -455,6 +457,23 @@ static void am3517_evm_hecc_init(struct ti_hecc_platform_data *pdata)
 static struct omap_board_config_kernel am3517_evm_config[] __initdata = {
 };
 
+static struct omap2_hsmmc_info mmc[] = {
+	{
+		.mmc		= 1,
+		.caps		= MMC_CAP_4_BIT_DATA,
+		.gpio_cd	= 127,
+		.gpio_wp	= 126,
+	},
+	{
+		.mmc		= 2,
+		.caps		= MMC_CAP_4_BIT_DATA,
+		.gpio_cd	= 128,
+		.gpio_wp	= 129,
+	},
+	{}      /* Terminator */
+};
+
+
 static void __init am3517_evm_init(void)
 {
 	omap_board_config = am3517_evm_config;
@@ -483,6 +502,9 @@ static void __init am3517_evm_init(void)
 
 	/* MUSB */
 	am3517_evm_musb_init();
+
+	/* MMC init function */
+	omap2_hsmmc_init(mmc);
 }
 
 MACHINE_START(OMAP3517EVM, "OMAP3517/AM3517 EVM")
diff --git a/arch/arm/mach-omap2/board-cm-t35.c b/arch/arm/mach-omap2/board-cm-t35.c
index 1545102d1f9b..e921e3be24a4 100644
--- a/arch/arm/mach-omap2/board-cm-t35.c
+++ b/arch/arm/mach-omap2/board-cm-t35.c
@@ -53,7 +53,8 @@
 #include "hsmmc.h"
 #include "common-board-devices.h"
 
-#define CM_T35_GPIO_PENDOWN	57
+#define CM_T35_GPIO_PENDOWN		57
+#define SB_T35_USB_HUB_RESET_GPIO	167
 
 #define CM_T35_SMSC911X_CS	5
 #define CM_T35_SMSC911X_GPIO	163
@@ -339,8 +340,10 @@ static struct regulator_consumer_supply cm_t35_vsim_supply[] = {
 	REGULATOR_SUPPLY("vmmc_aux", "omap_hsmmc.0"),
 };
 
-static struct regulator_consumer_supply cm_t35_vdvi_supply[] = {
-	REGULATOR_SUPPLY("vdvi", "omapdss"),
+static struct regulator_consumer_supply cm_t35_vio_supplies[] = {
+	REGULATOR_SUPPLY("vcc", "spi1.0"),
+	REGULATOR_SUPPLY("vdds_dsi", "omapdss"),
+	REGULATOR_SUPPLY("vdds_dsi", "omapdss_dsi1"),
 };
 
 /* VMMC1 for MMC1 pins CMD, CLK, DAT0..DAT3 (20 mA, plus card == max 220 mA) */
@@ -373,6 +376,19 @@ static struct regulator_init_data cm_t35_vsim = {
 	.consumer_supplies	= cm_t35_vsim_supply,
 };
 
+static struct regulator_init_data cm_t35_vio = {
+	.constraints = {
+		.min_uV			= 1800000,
+		.max_uV			= 1800000,
+		.apply_uV		= true,
+		.valid_modes_mask	= REGULATOR_MODE_NORMAL
+					| REGULATOR_MODE_STANDBY,
+		.valid_ops_mask		= REGULATOR_CHANGE_MODE,
+	},
+	.num_consumer_supplies	= ARRAY_SIZE(cm_t35_vio_supplies),
+	.consumer_supplies	= cm_t35_vio_supplies,
+};
+
 static uint32_t cm_t35_keymap[] = {
 	KEY(0, 0, KEY_A),	KEY(0, 1, KEY_B),	KEY(0, 2, KEY_LEFT),
 	KEY(1, 0, KEY_UP),	KEY(1, 1, KEY_ENTER),	KEY(1, 2, KEY_DOWN),
@@ -421,6 +437,23 @@ static struct usbhs_omap_board_data usbhs_bdata __initdata = {
 	.reset_gpio_port[2]  = -EINVAL
 };
 
+static void cm_t35_init_usbh(void)
+{
+	int err;
+
+	err = gpio_request_one(SB_T35_USB_HUB_RESET_GPIO,
+			       GPIOF_OUT_INIT_LOW, "usb hub rst");
+	if (err) {
+		pr_err("SB-T35: usb hub rst gpio request failed: %d\n", err);
+	} else {
+		udelay(10);
+		gpio_set_value(SB_T35_USB_HUB_RESET_GPIO, 1);
+		msleep(1);
+	}
+
+	usbhs_init(&usbhs_bdata);
+}
+
 static int cm_t35_twl_gpio_setup(struct device *dev, unsigned gpio,
 				 unsigned ngpio)
 {
@@ -456,17 +489,14 @@ static struct twl4030_platform_data cm_t35_twldata = {
 	.gpio		= &cm_t35_gpio_data,
 	.vmmc1		= &cm_t35_vmmc1,
 	.vsim		= &cm_t35_vsim,
+	.vio		= &cm_t35_vio,
 };
 
 static void __init cm_t35_init_i2c(void)
 {
 	omap3_pmic_get_config(&cm_t35_twldata, TWL_COMMON_PDATA_USB,
-			TWL_COMMON_REGULATOR_VDAC | TWL_COMMON_REGULATOR_VPLL2);
-
-	cm_t35_twldata.vpll2->constraints.name = "VDVI";
-	cm_t35_twldata.vpll2->num_consumer_supplies =
-						ARRAY_SIZE(cm_t35_vdvi_supply);
-	cm_t35_twldata.vpll2->consumer_supplies = cm_t35_vdvi_supply;
+			      TWL_COMMON_REGULATOR_VDAC |
+			      TWL_COMMON_PDATA_AUDIO);
 
 	omap3_pmic_init("tps65930", &cm_t35_twldata);
 }
@@ -570,24 +600,28 @@ static void __init cm_t3x_common_dss_mux_init(int mux_mode)
 
 static void __init cm_t35_init_mux(void)
 {
-	omap_mux_init_signal("gpio_70", OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT);
-	omap_mux_init_signal("gpio_71", OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT);
-	omap_mux_init_signal("gpio_72", OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT);
-	omap_mux_init_signal("gpio_73", OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT);
-	omap_mux_init_signal("gpio_74", OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT);
-	omap_mux_init_signal("gpio_75", OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT);
-	cm_t3x_common_dss_mux_init(OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT);
+	int mux_mode = OMAP_MUX_MODE0 | OMAP_PIN_OUTPUT;
+
+	omap_mux_init_signal("dss_data0.dss_data0", mux_mode);
+	omap_mux_init_signal("dss_data1.dss_data1", mux_mode);
+	omap_mux_init_signal("dss_data2.dss_data2", mux_mode);
+	omap_mux_init_signal("dss_data3.dss_data3", mux_mode);
+	omap_mux_init_signal("dss_data4.dss_data4", mux_mode);
+	omap_mux_init_signal("dss_data5.dss_data5", mux_mode);
+	cm_t3x_common_dss_mux_init(mux_mode);
 }
 
 static void __init cm_t3730_init_mux(void)
 {
-	omap_mux_init_signal("sys_boot0", OMAP_MUX_MODE3 | OMAP_PIN_OUTPUT);
-	omap_mux_init_signal("sys_boot1", OMAP_MUX_MODE3 | OMAP_PIN_OUTPUT);
-	omap_mux_init_signal("sys_boot3", OMAP_MUX_MODE3 | OMAP_PIN_OUTPUT);
-	omap_mux_init_signal("sys_boot4", OMAP_MUX_MODE3 | OMAP_PIN_OUTPUT);
-	omap_mux_init_signal("sys_boot5", OMAP_MUX_MODE3 | OMAP_PIN_OUTPUT);
-	omap_mux_init_signal("sys_boot6", OMAP_MUX_MODE3 | OMAP_PIN_OUTPUT);
-	cm_t3x_common_dss_mux_init(OMAP_MUX_MODE3 | OMAP_PIN_OUTPUT);
+	int mux_mode = OMAP_MUX_MODE3 | OMAP_PIN_OUTPUT;
+
+	omap_mux_init_signal("sys_boot0", mux_mode);
+	omap_mux_init_signal("sys_boot1", mux_mode);
+	omap_mux_init_signal("sys_boot3", mux_mode);
+	omap_mux_init_signal("sys_boot4", mux_mode);
+	omap_mux_init_signal("sys_boot5", mux_mode);
+	omap_mux_init_signal("sys_boot6", mux_mode);
+	cm_t3x_common_dss_mux_init(mux_mode);
 }
 #else
 static inline void cm_t35_init_mux(void) {}
@@ -612,7 +646,7 @@ static void __init cm_t3x_common_init(void)
 	cm_t35_init_display();
 
 	usb_musb_init(NULL);
-	usbhs_init(&usbhs_bdata);
+	cm_t35_init_usbh();
 }
 
 static void __init cm_t35_init(void)
diff --git a/arch/arm/mach-omap2/board-generic.c b/arch/arm/mach-omap2/board-generic.c
index f8c5b2cc7c9c..d58756060483 100644
--- a/arch/arm/mach-omap2/board-generic.c
+++ b/arch/arm/mach-omap2/board-generic.c
@@ -69,7 +69,6 @@ static void __init omap_generic_init(void)
 	if (node)
 		irq_domain_add_simple(node, 0);
 
-	omap_serial_init();
 	omap_sdrc_init(NULL, NULL);
 
 	of_platform_populate(NULL, omap_dt_match_table, NULL, NULL);
diff --git a/arch/arm/mach-omap2/board-n8x0.c b/arch/arm/mach-omap2/board-n8x0.c
index cef2cf1c0b8d..42a4d11fad23 100644
--- a/arch/arm/mach-omap2/board-n8x0.c
+++ b/arch/arm/mach-omap2/board-n8x0.c
@@ -46,7 +46,7 @@ static struct device *mmc_device;
 #define TUSB6010_GPIO_ENABLE	0
 #define TUSB6010_DMACHAN	0x3f
 
-#ifdef CONFIG_USB_MUSB_TUSB6010
+#if defined(CONFIG_USB_MUSB_TUSB6010) || defined(CONFIG_USB_MUSB_TUSB6010_MODULE)
 /*
  * Enable or disable power to TUSB6010. When enabling, turn on 3.3 V and
  * 1.5 V voltage regulators of PM companion chip. Companion chip will then
@@ -644,15 +644,15 @@ static inline void board_serial_init(void)
 	bdata.pads_cnt = 0;
 
 	bdata.id = 0;
-	omap_serial_init_port(&bdata);
+	omap_serial_init_port(&bdata, NULL);
 
 	bdata.id = 1;
-	omap_serial_init_port(&bdata);
+	omap_serial_init_port(&bdata, NULL);
 
 	bdata.id = 2;
 	bdata.pads = serial2_pads;
 	bdata.pads_cnt = ARRAY_SIZE(serial2_pads);
-	omap_serial_init_port(&bdata);
+	omap_serial_init_port(&bdata, NULL);
 }
 
 #else
diff --git a/arch/arm/mach-omap2/board-omap4panda.c b/arch/arm/mach-omap2/board-omap4panda.c
index 8b06c6a60d02..e96a2e7ad36f 100644
--- a/arch/arm/mach-omap2/board-omap4panda.c
+++ b/arch/arm/mach-omap2/board-omap4panda.c
@@ -364,74 +364,8 @@ static struct omap_board_mux board_mux[] __initdata = {
 	{ .reg_offset = OMAP_MUX_TERMINATOR },
 };
 
-static struct omap_device_pad serial2_pads[] __initdata = {
-	OMAP_MUX_STATIC("uart2_cts.uart2_cts",
-			 OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0),
-	OMAP_MUX_STATIC("uart2_rts.uart2_rts",
-			 OMAP_PIN_OUTPUT | OMAP_MUX_MODE0),
-	OMAP_MUX_STATIC("uart2_rx.uart2_rx",
-			 OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0),
-	OMAP_MUX_STATIC("uart2_tx.uart2_tx",
-			 OMAP_PIN_OUTPUT | OMAP_MUX_MODE0),
-};
-
-static struct omap_device_pad serial3_pads[] __initdata = {
-	OMAP_MUX_STATIC("uart3_cts_rctx.uart3_cts_rctx",
-			 OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0),
-	OMAP_MUX_STATIC("uart3_rts_sd.uart3_rts_sd",
-			 OMAP_PIN_OUTPUT | OMAP_MUX_MODE0),
-	OMAP_MUX_STATIC("uart3_rx_irrx.uart3_rx_irrx",
-			 OMAP_PIN_INPUT | OMAP_MUX_MODE0),
-	OMAP_MUX_STATIC("uart3_tx_irtx.uart3_tx_irtx",
-			 OMAP_PIN_OUTPUT | OMAP_MUX_MODE0),
-};
-
-static struct omap_device_pad serial4_pads[] __initdata = {
-	OMAP_MUX_STATIC("uart4_rx.uart4_rx",
-			 OMAP_PIN_INPUT | OMAP_MUX_MODE0),
-	OMAP_MUX_STATIC("uart4_tx.uart4_tx",
-			 OMAP_PIN_OUTPUT | OMAP_MUX_MODE0),
-};
-
-static struct omap_board_data serial2_data __initdata = {
-	.id             = 1,
-	.pads           = serial2_pads,
-	.pads_cnt       = ARRAY_SIZE(serial2_pads),
-};
-
-static struct omap_board_data serial3_data __initdata = {
-	.id             = 2,
-	.pads           = serial3_pads,
-	.pads_cnt       = ARRAY_SIZE(serial3_pads),
-};
-
-static struct omap_board_data serial4_data __initdata = {
-	.id             = 3,
-	.pads           = serial4_pads,
-	.pads_cnt       = ARRAY_SIZE(serial4_pads),
-};
-
-static inline void board_serial_init(void)
-{
-	struct omap_board_data bdata;
-	bdata.flags     = 0;
-	bdata.pads      = NULL;
-	bdata.pads_cnt  = 0;
-	bdata.id        = 0;
-	/* pass dummy data for UART1 */
-	omap_serial_init_port(&bdata);
-
-	omap_serial_init_port(&serial2_data);
-	omap_serial_init_port(&serial3_data);
-	omap_serial_init_port(&serial4_data);
-}
 #else
 #define board_mux	NULL
-
-static inline void board_serial_init(void)
-{
-	omap_serial_init();
-}
 #endif
 
 /* Display DVI */
@@ -562,7 +496,7 @@ static void __init omap4_panda_init(void)
 	omap4_panda_i2c_init();
 	platform_add_devices(panda_devices, ARRAY_SIZE(panda_devices));
 	platform_device_register(&omap_vwlan_device);
-	board_serial_init();
+	omap_serial_init();
 	omap_sdrc_init(NULL, NULL);
 	omap4_twl6030_hsmmc_init(mmc);
 	omap4_ehci_init();
diff --git a/arch/arm/mach-omap2/board-rx51-peripherals.c b/arch/arm/mach-omap2/board-rx51-peripherals.c
index 108fee6146fc..d67bcdf724d7 100644
--- a/arch/arm/mach-omap2/board-rx51-peripherals.c
+++ b/arch/arm/mach-omap2/board-rx51-peripherals.c
@@ -15,6 +15,7 @@
 #include <linux/input/matrix_keypad.h>
 #include <linux/spi/spi.h>
 #include <linux/wl12xx.h>
+#include <linux/spi/tsc2005.h>
 #include <linux/i2c.h>
 #include <linux/i2c/twl.h>
 #include <linux/clk.h>
@@ -58,6 +59,9 @@
 
 #define RX51_USB_TRANSCEIVER_RST_GPIO	67
 
+#define RX51_TSC2005_RESET_GPIO         104
+#define RX51_TSC2005_IRQ_GPIO           100
+
 /* list all spi devices here */
 enum {
 	RX51_SPI_WL1251,
@@ -66,6 +70,7 @@ enum {
 };
 
 static struct wl12xx_platform_data wl1251_pdata;
+static struct tsc2005_platform_data tsc2005_pdata;
 
 #if defined(CONFIG_SENSORS_TSL2563) || defined(CONFIG_SENSORS_TSL2563_MODULE)
 static struct tsl2563_platform_data rx51_tsl2563_platform_data = {
@@ -167,10 +172,10 @@ static struct spi_board_info rx51_peripherals_spi_board_info[] __initdata = {
 		.modalias		= "tsc2005",
 		.bus_num		= 1,
 		.chip_select		= 0,
-		/* .irq = OMAP_GPIO_IRQ(RX51_TSC2005_IRQ_GPIO),*/
+		.irq			= OMAP_GPIO_IRQ(RX51_TSC2005_IRQ_GPIO),
 		.max_speed_hz		= 6000000,
 		.controller_data	= &tsc2005_mcspi_config,
-		/* .platform_data = &tsc2005_config,*/
+		.platform_data		= &tsc2005_pdata,
 	},
 };
 
@@ -1086,6 +1091,42 @@ error:
 	 */
 }
 
+static struct tsc2005_platform_data tsc2005_pdata = {
+	.ts_pressure_max	= 2048,
+	.ts_pressure_fudge	= 2,
+	.ts_x_max		= 4096,
+	.ts_x_fudge		= 4,
+	.ts_y_max		= 4096,
+	.ts_y_fudge		= 7,
+	.ts_x_plate_ohm		= 280,
+	.esd_timeout_ms		= 8000,
+};
+
+static void rx51_tsc2005_set_reset(bool enable)
+{
+	gpio_set_value(RX51_TSC2005_RESET_GPIO, enable);
+}
+
+static void __init rx51_init_tsc2005(void)
+{
+	int r;
+
+	r = gpio_request_one(RX51_TSC2005_IRQ_GPIO, GPIOF_IN, "tsc2005 IRQ");
+	if (r < 0) {
+		printk(KERN_ERR "unable to get %s GPIO\n", "tsc2005 IRQ");
+		rx51_peripherals_spi_board_info[RX51_SPI_TSC2005].irq = 0;
+	}
+
+	r = gpio_request_one(RX51_TSC2005_RESET_GPIO, GPIOF_OUT_INIT_HIGH,
+		"tsc2005 reset");
+	if (r >= 0) {
+		tsc2005_pdata.set_reset = rx51_tsc2005_set_reset;
+	} else {
+		printk(KERN_ERR "unable to get %s GPIO\n", "tsc2005 reset");
+		tsc2005_pdata.esd_timeout_ms = 0;
+	}
+}
+
 void __init rx51_peripherals_init(void)
 {
 	rx51_i2c_init();
@@ -1094,6 +1135,7 @@ void __init rx51_peripherals_init(void)
 	board_smc91x_init();
 	rx51_add_gpio_keys();
 	rx51_init_wl1251();
+	rx51_init_tsc2005();
 	rx51_init_si4713();
 	spi_register_board_info(rx51_peripherals_spi_board_info,
 				ARRAY_SIZE(rx51_peripherals_spi_board_info));
diff --git a/arch/arm/mach-omap2/board-ti8168evm.c b/arch/arm/mach-omap2/board-ti8168evm.c
index 74713e3993e5..ab9a7a9e9d64 100644
--- a/arch/arm/mach-omap2/board-ti8168evm.c
+++ b/arch/arm/mach-omap2/board-ti8168evm.c
@@ -1,5 +1,5 @@
 /*
- * Code for TI8168 EVM.
+ * Code for TI8168/TI8148 EVM.
  *
  * Copyright (C) 2010 Texas Instruments, Inc. - http://www.ti.com/
  *
@@ -23,30 +23,45 @@
 #include <plat/irqs.h>
 #include <plat/board.h>
 #include "common.h"
+#include <plat/usb.h>
 
-static struct omap_board_config_kernel ti8168_evm_config[] __initdata = {
+static struct omap_musb_board_data musb_board_data = {
+	.set_phy_power	= ti81xx_musb_phy_power,
+	.interface_type	= MUSB_INTERFACE_ULPI,
+	.mode           = MUSB_OTG,
+	.power		= 500,
 };
 
-static void __init ti8168_evm_init(void)
+static struct omap_board_config_kernel ti81xx_evm_config[] __initdata = {
+};
+
+static void __init ti81xx_evm_init(void)
 {
 	omap_serial_init();
 	omap_sdrc_init(NULL, NULL);
-	omap_board_config = ti8168_evm_config;
-	omap_board_config_size = ARRAY_SIZE(ti8168_evm_config);
-}
-
-static void __init ti8168_evm_map_io(void)
-{
-	omapti816x_map_common_io();
+	omap_board_config = ti81xx_evm_config;
+	omap_board_config_size = ARRAY_SIZE(ti81xx_evm_config);
+	usb_musb_init(&musb_board_data);
 }
 
 MACHINE_START(TI8168EVM, "ti8168evm")
 	/* Maintainer: Texas Instruments */
 	.atag_offset	= 0x100,
-	.map_io		= ti8168_evm_map_io,
-	.init_early	= ti816x_init_early,
-	.init_irq	= ti816x_init_irq,
+	.map_io		= ti81xx_map_io,
+	.init_early	= ti81xx_init_early,
+	.init_irq	= ti81xx_init_irq,
+	.timer		= &omap3_timer,
+	.init_machine	= ti81xx_evm_init,
+	.restart	= omap_prcm_restart,
+MACHINE_END
+
+MACHINE_START(TI8148EVM, "ti8148evm")
+	/* Maintainer: Texas Instruments */
+	.atag_offset	= 0x100,
+	.map_io		= ti81xx_map_io,
+	.init_early	= ti81xx_init_early,
+	.init_irq	= ti81xx_init_irq,
 	.timer		= &omap3_timer,
-	.init_machine	= ti8168_evm_init,
+	.init_machine	= ti81xx_evm_init,
 	.restart	= omap_prcm_restart,
 MACHINE_END
diff --git a/arch/arm/mach-omap2/clock.c b/arch/arm/mach-omap2/clock.c
index 1f3481f8d695..f57ed5baeccf 100644
--- a/arch/arm/mach-omap2/clock.c
+++ b/arch/arm/mach-omap2/clock.c
@@ -35,7 +35,7 @@
 #include "cm-regbits-24xx.h"
 #include "cm-regbits-34xx.h"
 
-u8 cpu_mask;
+u16 cpu_mask;
 
 /*
  * clkdm_control: if true, then when a clock is enabled in the
diff --git a/arch/arm/mach-omap2/clock.h b/arch/arm/mach-omap2/clock.h
index 2311bc217226..b8c2a686481c 100644
--- a/arch/arm/mach-omap2/clock.h
+++ b/arch/arm/mach-omap2/clock.h
@@ -132,7 +132,7 @@ void omap2_clk_print_new_rates(const char *hfclkin_ck_name,
 			       const char *core_ck_name,
 			       const char *mpu_ck_name);
 
-extern u8 cpu_mask;
+extern u16 cpu_mask;
 
 extern const struct clkops clkops_omap2_dflt_wait;
 extern const struct clkops clkops_dummy;
diff --git a/arch/arm/mach-omap2/clock3xxx_data.c b/arch/arm/mach-omap2/clock3xxx_data.c
index 5d0064a4fb5a..d75e5f6b8a01 100644
--- a/arch/arm/mach-omap2/clock3xxx_data.c
+++ b/arch/arm/mach-omap2/clock3xxx_data.c
@@ -2480,6 +2480,16 @@ static struct clk uart4_fck = {
 	.recalc		= &followparent_recalc,
 };
 
+static struct clk uart4_fck_am35xx = {
+	.name           = "uart4_fck",
+	.ops            = &clkops_omap2_dflt_wait,
+	.parent         = &per_48m_fck,
+	.enable_reg     = OMAP_CM_REGADDR(CORE_MOD, CM_FCLKEN1),
+	.enable_bit     = OMAP3430_EN_UART4_SHIFT,
+	.clkdm_name     = "core_l4_clkdm",
+	.recalc         = &followparent_recalc,
+};
+
 static struct clk gpt2_fck = {
 	.name		= "gpt2_fck",
 	.ops		= &clkops_omap2_dflt_wait,
@@ -3287,7 +3297,7 @@ static struct omap_clk omap3xxx_clks[] = {
 	CLK(NULL,	"cpefuse_fck",	&cpefuse_fck,	CK_3430ES2PLUS | CK_AM35XX | CK_36XX),
 	CLK(NULL,	"ts_fck",	&ts_fck,	CK_3430ES2PLUS | CK_AM35XX | CK_36XX),
 	CLK(NULL,	"usbtll_fck",	&usbtll_fck,	CK_3430ES2PLUS | CK_AM35XX | CK_36XX),
-	CLK("usbhs-omap.0",	"usbtll_fck",	&usbtll_fck,	CK_3430ES2PLUS | CK_AM35XX | CK_36XX),
+	CLK("usbhs_omap",	"usbtll_fck",	&usbtll_fck,	CK_3430ES2PLUS | CK_AM35XX | CK_36XX),
 	CLK("omap-mcbsp.1",	"prcm_fck",	&core_96m_fck,	CK_3XXX),
 	CLK("omap-mcbsp.5",	"prcm_fck",	&core_96m_fck,	CK_3XXX),
 	CLK(NULL,	"core_96m_fck",	&core_96m_fck,	CK_3XXX),
@@ -3323,7 +3333,7 @@ static struct omap_clk omap3xxx_clks[] = {
 	CLK(NULL,	"pka_ick",	&pka_ick,	CK_34XX | CK_36XX),
 	CLK(NULL,	"core_l4_ick",	&core_l4_ick,	CK_3XXX),
 	CLK(NULL,	"usbtll_ick",	&usbtll_ick,	CK_3430ES2PLUS | CK_AM35XX | CK_36XX),
-	CLK("usbhs-omap.0",	"usbtll_ick",	&usbtll_ick,	CK_3430ES2PLUS | CK_AM35XX | CK_36XX),
+	CLK("usbhs_omap",	"usbtll_ick",	&usbtll_ick,	CK_3430ES2PLUS | CK_AM35XX | CK_36XX),
 	CLK("omap_hsmmc.2",	"ick",	&mmchs3_ick,	CK_3430ES2PLUS | CK_AM35XX | CK_36XX),
 	CLK(NULL,	"icr_ick",	&icr_ick,	CK_34XX | CK_36XX),
 	CLK("omap-aes",	"ick",	&aes2_ick,	CK_34XX | CK_36XX),
@@ -3369,20 +3379,18 @@ static struct omap_clk omap3xxx_clks[] = {
 	CLK(NULL,	"cam_ick",	&cam_ick,	CK_34XX | CK_36XX),
 	CLK(NULL,	"csi2_96m_fck",	&csi2_96m_fck,	CK_34XX | CK_36XX),
 	CLK(NULL,	"usbhost_120m_fck", &usbhost_120m_fck, CK_3430ES2PLUS | CK_AM35XX | CK_36XX),
-	CLK("usbhs-omap.0",	"hs_fck", &usbhost_120m_fck, CK_3430ES2PLUS | CK_AM35XX | CK_36XX),
 	CLK(NULL,	"usbhost_48m_fck", &usbhost_48m_fck, CK_3430ES2PLUS | CK_AM35XX | CK_36XX),
-	CLK("usbhs-omap.0",	"fs_fck", &usbhost_48m_fck, CK_3430ES2PLUS | CK_AM35XX | CK_36XX),
 	CLK(NULL,	"usbhost_ick",	&usbhost_ick,	CK_3430ES2PLUS | CK_AM35XX | CK_36XX),
-	CLK("usbhs-omap.0",	"usbhost_ick",	&usbhost_ick,	CK_3430ES2PLUS | CK_AM35XX | CK_36XX),
-	CLK("usbhs-omap.0",	"utmi_p1_gfclk",	&dummy_ck,	CK_3XXX),
-	CLK("usbhs-omap.0",	"utmi_p2_gfclk",	&dummy_ck,	CK_3XXX),
-	CLK("usbhs-omap.0",	"xclk60mhsp1_ck",	&dummy_ck,	CK_3XXX),
-	CLK("usbhs-omap.0",	"xclk60mhsp2_ck",	&dummy_ck,	CK_3XXX),
-	CLK("usbhs-omap.0",	"usb_host_hs_utmi_p1_clk",	&dummy_ck,	CK_3XXX),
-	CLK("usbhs-omap.0",	"usb_host_hs_utmi_p2_clk",	&dummy_ck,	CK_3XXX),
-	CLK("usbhs-omap.0",	"usb_tll_hs_usb_ch0_clk",	&dummy_ck,	CK_3XXX),
-	CLK("usbhs-omap.0",	"usb_tll_hs_usb_ch1_clk",	&dummy_ck,	CK_3XXX),
-	CLK("usbhs-omap.0",	"init_60m_fclk",	&dummy_ck,	CK_3XXX),
+	CLK("usbhs_omap",	"usbhost_ick",	&usbhost_ick,	CK_3430ES2PLUS | CK_AM35XX | CK_36XX),
+	CLK("usbhs_omap",	"utmi_p1_gfclk",	&dummy_ck,	CK_3XXX),
+	CLK("usbhs_omap",	"utmi_p2_gfclk",	&dummy_ck,	CK_3XXX),
+	CLK("usbhs_omap",	"xclk60mhsp1_ck",	&dummy_ck,	CK_3XXX),
+	CLK("usbhs_omap",	"xclk60mhsp2_ck",	&dummy_ck,	CK_3XXX),
+	CLK("usbhs_omap",	"usb_host_hs_utmi_p1_clk",	&dummy_ck,	CK_3XXX),
+	CLK("usbhs_omap",	"usb_host_hs_utmi_p2_clk",	&dummy_ck,	CK_3XXX),
+	CLK("usbhs_omap",	"usb_tll_hs_usb_ch0_clk",	&dummy_ck,	CK_3XXX),
+	CLK("usbhs_omap",	"usb_tll_hs_usb_ch1_clk",	&dummy_ck,	CK_3XXX),
+	CLK("usbhs_omap",	"init_60m_fclk",	&dummy_ck,	CK_3XXX),
 	CLK(NULL,	"usim_fck",	&usim_fck,	CK_3430ES2PLUS | CK_36XX),
 	CLK(NULL,	"gpt1_fck",	&gpt1_fck,	CK_3XXX),
 	CLK(NULL,	"wkup_32k_fck",	&wkup_32k_fck,	CK_3XXX),
@@ -3403,6 +3411,7 @@ static struct omap_clk omap3xxx_clks[] = {
 	CLK(NULL,	"per_48m_fck",	&per_48m_fck,	CK_3XXX),
 	CLK(NULL,	"uart3_fck",	&uart3_fck,	CK_3XXX),
 	CLK(NULL,	"uart4_fck",	&uart4_fck,	CK_36XX),
+	CLK(NULL,	"uart4_fck",	&uart4_fck_am35xx, CK_3505 | CK_3517),
 	CLK(NULL,	"gpt2_fck",	&gpt2_fck,	CK_3XXX),
 	CLK(NULL,	"gpt3_fck",	&gpt3_fck,	CK_3XXX),
 	CLK(NULL,	"gpt4_fck",	&gpt4_fck,	CK_3XXX),
@@ -3517,6 +3526,10 @@ int __init omap3xxx_clk_init(void)
 	} else if (cpu_is_ti816x()) {
 		cpu_mask = RATE_IN_TI816X;
 		cpu_clkflg = CK_TI816X;
+	} else if (cpu_is_am33xx()) {
+		cpu_mask = RATE_IN_AM33XX;
+	} else if (cpu_is_ti814x()) {
+		cpu_mask = RATE_IN_TI814X;
 	} else if (cpu_is_omap34xx()) {
 		if (omap_rev() == OMAP3430_REV_ES1_0) {
 			cpu_mask = RATE_IN_3430ES1;
@@ -3600,7 +3613,7 @@ int __init omap3xxx_clk_init(void)
 	 * Lock DPLL5 -- here only until other device init code can
 	 * handle this
 	 */
-	if (!cpu_is_ti816x() && (omap_rev() >= OMAP3430_REV_ES2_0))
+	if (!cpu_is_ti81xx() && (omap_rev() >= OMAP3430_REV_ES2_0))
 		omap3_clk_lock_dpll5();
 
 	/* Avoid sleeping during omap3_core_dpll_m2_set_rate() */
diff --git a/arch/arm/mach-omap2/clock44xx_data.c b/arch/arm/mach-omap2/clock44xx_data.c
index 0798a802497a..08e86d793a1f 100644
--- a/arch/arm/mach-omap2/clock44xx_data.c
+++ b/arch/arm/mach-omap2/clock44xx_data.c
@@ -1206,6 +1206,14 @@ static const struct clksel ocp_abe_iclk_div[] = {
 	{ .parent = NULL },
 };
 
+static struct clk mpu_periphclk = {
+	.name		= "mpu_periphclk",
+	.parent		= &dpll_mpu_ck,
+	.ops		= &clkops_null,
+	.fixed_div	= 2,
+	.recalc		= &omap_fixed_divisor_recalc,
+};
+
 static struct clk ocp_abe_iclk = {
 	.name		= "ocp_abe_iclk",
 	.parent		= &aess_fclk,
@@ -3189,6 +3197,7 @@ static struct omap_clk omap44xx_clks[] = {
 	CLK(NULL,	"l4_div_ck",			&l4_div_ck,	CK_443X),
 	CLK(NULL,	"lp_clk_div_ck",		&lp_clk_div_ck,	CK_443X),
 	CLK(NULL,	"l4_wkup_clk_mux_ck",		&l4_wkup_clk_mux_ck,	CK_443X),
+	CLK("smp_twd",	NULL,				&mpu_periphclk,	CK_443X),
 	CLK(NULL,	"ocp_abe_iclk",			&ocp_abe_iclk,	CK_443X),
 	CLK(NULL,	"per_abe_24m_fclk",		&per_abe_24m_fclk,	CK_443X),
 	CLK(NULL,	"per_abe_nc_fclk",		&per_abe_nc_fclk,	CK_443X),
@@ -3295,7 +3304,7 @@ static struct omap_clk omap44xx_clks[] = {
 	CLK(NULL,	"uart2_fck",			&uart2_fck,	CK_443X),
 	CLK(NULL,	"uart3_fck",			&uart3_fck,	CK_443X),
 	CLK(NULL,	"uart4_fck",			&uart4_fck,	CK_443X),
-	CLK("usbhs-omap.0",	"fs_fck",		&usb_host_fs_fck,	CK_443X),
+	CLK("usbhs_omap",	"fs_fck",		&usb_host_fs_fck,	CK_443X),
 	CLK(NULL,	"utmi_p1_gfclk",		&utmi_p1_gfclk,	CK_443X),
 	CLK(NULL,	"usb_host_hs_utmi_p1_clk",	&usb_host_hs_utmi_p1_clk,	CK_443X),
 	CLK(NULL,	"utmi_p2_gfclk",		&utmi_p2_gfclk,	CK_443X),
@@ -3306,7 +3315,7 @@ static struct omap_clk omap44xx_clks[] = {
 	CLK(NULL,	"usb_host_hs_hsic60m_p2_clk",	&usb_host_hs_hsic60m_p2_clk,	CK_443X),
 	CLK(NULL,	"usb_host_hs_hsic480m_p2_clk",	&usb_host_hs_hsic480m_p2_clk,	CK_443X),
 	CLK(NULL,	"usb_host_hs_func48mclk",	&usb_host_hs_func48mclk,	CK_443X),
-	CLK("usbhs-omap.0",	"hs_fck",		&usb_host_hs_fck,	CK_443X),
+	CLK("usbhs_omap",	"hs_fck",		&usb_host_hs_fck,	CK_443X),
 	CLK(NULL,	"otg_60m_gfclk",		&otg_60m_gfclk,	CK_443X),
 	CLK(NULL,	"usb_otg_hs_xclk",		&usb_otg_hs_xclk,	CK_443X),
 	CLK("musb-omap2430",	"ick",				&usb_otg_hs_ick,	CK_443X),
@@ -3314,7 +3323,7 @@ static struct omap_clk omap44xx_clks[] = {
 	CLK(NULL,	"usb_tll_hs_usb_ch2_clk",	&usb_tll_hs_usb_ch2_clk,	CK_443X),
 	CLK(NULL,	"usb_tll_hs_usb_ch0_clk",	&usb_tll_hs_usb_ch0_clk,	CK_443X),
 	CLK(NULL,	"usb_tll_hs_usb_ch1_clk",	&usb_tll_hs_usb_ch1_clk,	CK_443X),
-	CLK("usbhs-omap.0",	"usbtll_ick",		&usb_tll_hs_ick,	CK_443X),
+	CLK("usbhs_omap",	"usbtll_ick",		&usb_tll_hs_ick,	CK_443X),
 	CLK(NULL,	"usim_ck",			&usim_ck,	CK_443X),
 	CLK(NULL,	"usim_fclk",			&usim_fclk,	CK_443X),
 	CLK(NULL,	"usim_fck",			&usim_fck,	CK_443X),
@@ -3374,8 +3383,8 @@ static struct omap_clk omap44xx_clks[] = {
 	CLK(NULL,	"uart2_ick",			&dummy_ck,	CK_443X),
 	CLK(NULL,	"uart3_ick",			&dummy_ck,	CK_443X),
 	CLK(NULL,	"uart4_ick",			&dummy_ck,	CK_443X),
-	CLK("usbhs-omap.0",	"usbhost_ick",		&dummy_ck,		CK_443X),
-	CLK("usbhs-omap.0",	"usbtll_fck",		&dummy_ck,	CK_443X),
+	CLK("usbhs_omap",	"usbhost_ick",		&dummy_ck,		CK_443X),
+	CLK("usbhs_omap",	"usbtll_fck",		&dummy_ck,	CK_443X),
 	CLK("omap_wdt",	"ick",				&dummy_ck,	CK_443X),
 	CLK("omap_timer.1",	"32k_ck",	&sys_32k_ck,	CK_443X),
 	CLK("omap_timer.2",	"32k_ck",	&sys_32k_ck,	CK_443X),
diff --git a/arch/arm/mach-omap2/common.c b/arch/arm/mach-omap2/common.c
index 684b8a7cd401..aaf421178c91 100644
--- a/arch/arm/mach-omap2/common.c
+++ b/arch/arm/mach-omap2/common.c
@@ -110,23 +110,49 @@ void __init omap3_map_io(void)
 
 /*
  * Adjust TAP register base such that omap3_check_revision accesses the correct
- * TI816X register for checking device ID (it adds 0x204 to tap base while
- * TI816X DEVICE ID register is at offset 0x600 from control base).
+ * TI81XX register for checking device ID (it adds 0x204 to tap base while
+ * TI81XX DEVICE ID register is at offset 0x600 from control base).
  */
-#define TI816X_TAP_BASE		(TI816X_CTRL_BASE + \
-				TI816X_CONTROL_DEVICE_ID - 0x204)
+#define TI81XX_TAP_BASE		(TI81XX_CTRL_BASE + \
+				TI81XX_CONTROL_DEVICE_ID - 0x204)
 
-static struct omap_globals ti816x_globals = {
+static struct omap_globals ti81xx_globals = {
 	.class  = OMAP343X_CLASS,
-	.tap    = OMAP2_L4_IO_ADDRESS(TI816X_TAP_BASE),
-	.ctrl   = OMAP2_L4_IO_ADDRESS(TI816X_CTRL_BASE),
-	.prm    = OMAP2_L4_IO_ADDRESS(TI816X_PRCM_BASE),
-	.cm     = OMAP2_L4_IO_ADDRESS(TI816X_PRCM_BASE),
+	.tap    = OMAP2_L4_IO_ADDRESS(TI81XX_TAP_BASE),
+	.ctrl   = OMAP2_L4_IO_ADDRESS(TI81XX_CTRL_BASE),
+	.prm    = OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE),
+	.cm     = OMAP2_L4_IO_ADDRESS(TI81XX_PRCM_BASE),
 };
 
-void __init omap2_set_globals_ti816x(void)
+void __init omap2_set_globals_ti81xx(void)
 {
-	__omap2_set_globals(&ti816x_globals);
+	__omap2_set_globals(&ti81xx_globals);
+}
+
+void __init ti81xx_map_io(void)
+{
+	omapti81xx_map_common_io();
+}
+
+#define AM33XX_TAP_BASE		(AM33XX_CTRL_BASE + \
+				TI81XX_CONTROL_DEVICE_ID - 0x204)
+
+static struct omap_globals am33xx_globals = {
+	.class  = AM335X_CLASS,
+	.tap    = AM33XX_L4_WK_IO_ADDRESS(AM33XX_TAP_BASE),
+	.ctrl   = AM33XX_L4_WK_IO_ADDRESS(AM33XX_CTRL_BASE),
+	.prm    = AM33XX_L4_WK_IO_ADDRESS(AM33XX_PRCM_BASE),
+	.cm     = AM33XX_L4_WK_IO_ADDRESS(AM33XX_PRCM_BASE),
+};
+
+void __init omap2_set_globals_am33xx(void)
+{
+	__omap2_set_globals(&am33xx_globals);
+}
+
+void __init am33xx_map_io(void)
+{
+	omapam33xx_map_common_io();
 }
 #endif
 
diff --git a/arch/arm/mach-omap2/common.h b/arch/arm/mach-omap2/common.h
index cda888a2e635..febffde2ff10 100644
--- a/arch/arm/mach-omap2/common.h
+++ b/arch/arm/mach-omap2/common.h
@@ -24,9 +24,11 @@
 
 #ifndef __ARCH_ARM_MACH_OMAP2PLUS_COMMON_H
 #define __ARCH_ARM_MACH_OMAP2PLUS_COMMON_H
+#ifndef __ASSEMBLER__
 
 #include <linux/delay.h>
 #include <plat/common.h>
+#include <asm/proc-fns.h>
 
 #ifdef CONFIG_SOC_OMAP2420
 extern void omap242x_map_common_io(void);
@@ -52,10 +54,18 @@ static inline void omap34xx_map_common_io(void)
 }
 #endif
 
-#ifdef CONFIG_SOC_OMAPTI816X
-extern void omapti816x_map_common_io(void);
+#ifdef CONFIG_SOC_OMAPTI81XX
+extern void omapti81xx_map_common_io(void);
 #else
-static inline void omapti816x_map_common_io(void)
+static inline void omapti81xx_map_common_io(void)
+{
+}
+#endif
+
+#ifdef CONFIG_SOC_OMAPAM33XX
+extern void omapam33xx_map_common_io(void);
+#else
+static inline void omapam33xx_map_common_io(void)
 {
 }
 #endif
@@ -82,7 +92,7 @@ void omap35xx_init_early(void);
 void omap3630_init_early(void);
 void omap3_init_early(void);	/* Do not use this one */
 void am35xx_init_early(void);
-void ti816x_init_early(void);
+void ti81xx_init_early(void);
 void omap4430_init_early(void);
 void omap_prcm_restart(char, const char *);
 
@@ -107,7 +117,8 @@ void omap2_set_globals_242x(void);
 void omap2_set_globals_243x(void);
 void omap2_set_globals_3xxx(void);
 void omap2_set_globals_443x(void);
-void omap2_set_globals_ti816x(void);
+void omap2_set_globals_ti81xx(void);
+void omap2_set_globals_am33xx(void);
 
 /* These get called from omap2_set_globals_xxxx(), do not call these */
 void omap2_set_globals_tap(struct omap_globals *);
@@ -118,7 +129,9 @@ void omap2_set_globals_prcm(struct omap_globals *);
 void omap242x_map_io(void);
 void omap243x_map_io(void);
 void omap3_map_io(void);
+void am33xx_map_io(void);
 void omap4_map_io(void);
+void ti81xx_map_io(void);
 
 /**
  * omap_test_timeout - busy-loop, testing a condition
@@ -147,7 +160,7 @@ extern struct device *omap4_get_dsp_device(void);
 
 void omap2_init_irq(void);
 void omap3_init_irq(void);
-void ti816x_init_irq(void);
+void ti81xx_init_irq(void);
 extern int omap_irq_pending(void);
 void omap_intc_save_context(void);
 void omap_intc_restore_context(void);
@@ -157,23 +170,23 @@ void omap3_intc_resume_idle(void);
 void omap2_intc_handle_irq(struct pt_regs *regs);
 void omap3_intc_handle_irq(struct pt_regs *regs);
 
-/*
- * wfi used in low power code. Directly opcode is used instead
- * of instruction to avoid mulit-omap build break
- */
-#ifdef CONFIG_THUMB2_KERNEL
-#define do_wfi() __asm__ __volatile__ ("wfi" : : : "memory")
-#else
-#define do_wfi()			\
-		__asm__ __volatile__ (".word	0xe320f003" : : : "memory")
+#ifdef CONFIG_CACHE_L2X0
+extern void __iomem *omap4_get_l2cache_base(void);
 #endif
 
-#ifdef CONFIG_CACHE_L2X0
-extern void __iomem *l2cache_base;
+#ifdef CONFIG_SMP
+extern void __iomem *omap4_get_scu_base(void);
+#else
+static inline void __iomem *omap4_get_scu_base(void)
+{
+	return NULL;
+}
 #endif
 
 extern void __init gic_init_irq(void);
 extern void omap_smc1(u32 fn, u32 arg);
+extern void __iomem *omap4_get_sar_ram_base(void);
+extern void omap_do_wfi(void);
 
 #ifdef CONFIG_SMP
 /* Needed for secondary core boot */
@@ -183,4 +196,44 @@ extern void omap_auxcoreboot_addr(u32 cpu_addr);
 extern u32 omap_read_auxcoreboot0(void);
 #endif
 
+#if defined(CONFIG_SMP) && defined(CONFIG_PM)
+extern int omap4_mpuss_init(void);
+extern int omap4_enter_lowpower(unsigned int cpu, unsigned int power_state);
+extern int omap4_finish_suspend(unsigned long cpu_state);
+extern void omap4_cpu_resume(void);
+extern int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state);
+extern u32 omap4_mpuss_read_prev_context_state(void);
+#else
+static inline int omap4_enter_lowpower(unsigned int cpu,
+					unsigned int power_state)
+{
+	cpu_do_idle();
+	return 0;
+}
+
+static inline int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state)
+{
+	cpu_do_idle();
+	return 0;
+}
+
+static inline int omap4_mpuss_init(void)
+{
+	return 0;
+}
+
+static inline int omap4_finish_suspend(unsigned long cpu_state)
+{
+	return 0;
+}
+
+static inline void omap4_cpu_resume(void)
+{}
+
+static inline u32 omap4_mpuss_read_prev_context_state(void)
+{
+	return 0;
+}
+#endif
+#endif /* __ASSEMBLER__ */
 #endif /* __ARCH_ARM_MACH_OMAP2PLUS_COMMON_H */
diff --git a/arch/arm/mach-omap2/control.h b/arch/arm/mach-omap2/control.h
index d4ef75d5a382..0ba68d3764bc 100644
--- a/arch/arm/mach-omap2/control.h
+++ b/arch/arm/mach-omap2/control.h
@@ -52,8 +52,8 @@
 #define OMAP343X_CONTROL_PADCONFS_WKUP	0xa00
 #define OMAP343X_CONTROL_GENERAL_WKUP	0xa60
 
-/* TI816X spefic control submodules */
-#define TI816X_CONTROL_DEVCONF		0x600
+/* TI81XX spefic control submodules */
+#define TI81XX_CONTROL_DEVCONF		0x600
 
 /* Control register offsets - read/write with omap_ctrl_{read,write}{bwl}() */
 
@@ -244,8 +244,8 @@
 #define OMAP3_PADCONF_SAD2D_MSTANDBY   0x250
 #define OMAP3_PADCONF_SAD2D_IDLEACK    0x254
 
-/* TI816X CONTROL_DEVCONF register offsets */
-#define TI816X_CONTROL_DEVICE_ID	(TI816X_CONTROL_DEVCONF + 0x000)
+/* TI81XX CONTROL_DEVCONF register offsets */
+#define TI81XX_CONTROL_DEVICE_ID	(TI81XX_CONTROL_DEVCONF + 0x000)
 
 /*
  * REVISIT: This list of registers is not comprehensive - there are more
diff --git a/arch/arm/mach-omap2/cpuidle34xx.c b/arch/arm/mach-omap2/cpuidle34xx.c
index e20332f4abdc..464cffde58fe 100644
--- a/arch/arm/mach-omap2/cpuidle34xx.c
+++ b/arch/arm/mach-omap2/cpuidle34xx.c
@@ -25,12 +25,12 @@
 #include <linux/sched.h>
 #include <linux/cpuidle.h>
 #include <linux/export.h>
+#include <linux/cpu_pm.h>
 
 #include <plat/prcm.h>
 #include <plat/irqs.h>
 #include "powerdomain.h"
 #include "clockdomain.h"
-#include <plat/serial.h>
 
 #include "pm.h"
 #include "control.h"
@@ -124,9 +124,23 @@ static int omap3_enter_idle(struct cpuidle_device *dev,
 		pwrdm_for_each_clkdm(core_pd, _cpuidle_deny_idle);
 	}
 
+	/*
+	 * Call idle CPU PM enter notifier chain so that
+	 * VFP context is saved.
+	 */
+	if (mpu_state == PWRDM_POWER_OFF)
+		cpu_pm_enter();
+
 	/* Execute ARM wfi */
 	omap_sram_idle();
 
+	/*
+	 * Call idle CPU PM enter notifier chain to restore
+	 * VFP context.
+	 */
+	if (pwrdm_read_prev_pwrst(mpu_pd) == PWRDM_POWER_OFF)
+		cpu_pm_exit();
+
 	/* Re-allow idle for C1 */
 	if (index == 0) {
 		pwrdm_for_each_clkdm(mpu_pd, _cpuidle_allow_idle);
@@ -245,11 +259,6 @@ static int omap3_enter_idle_bm(struct cpuidle_device *dev,
 	struct omap3_idle_statedata *cx;
 	int ret;
 
-	if (!omap3_can_sleep()) {
-		new_state_idx = drv->safe_state_index;
-		goto select_state;
-	}
-
 	/*
 	 * Prevent idle completely if CAM is active.
 	 * CAM does not have wakeup capability in OMAP3.
diff --git a/arch/arm/mach-omap2/cpuidle44xx.c b/arch/arm/mach-omap2/cpuidle44xx.c
new file mode 100644
index 000000000000..cfdbb86bc84e
--- /dev/null
+++ b/arch/arm/mach-omap2/cpuidle44xx.c
@@ -0,0 +1,245 @@
+/*
+ * OMAP4 CPU idle Routines
+ *
+ * Copyright (C) 2011 Texas Instruments, Inc.
+ * Santosh Shilimkar <santosh.shilimkar@ti.com>
+ * Rajendra Nayak <rnayak@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/sched.h>
+#include <linux/cpuidle.h>
+#include <linux/cpu_pm.h>
+#include <linux/export.h>
+#include <linux/clockchips.h>
+
+#include <asm/proc-fns.h>
+
+#include "common.h"
+#include "pm.h"
+#include "prm.h"
+
+#ifdef CONFIG_CPU_IDLE
+
+/* Machine specific information to be recorded in the C-state driver_data */
+struct omap4_idle_statedata {
+	u32 cpu_state;
+	u32 mpu_logic_state;
+	u32 mpu_state;
+	u8 valid;
+};
+
+static struct cpuidle_params cpuidle_params_table[] = {
+	/* C1 - CPU0 ON + CPU1 ON + MPU ON */
+	{.exit_latency = 2 + 2 , .target_residency = 5, .valid = 1},
+	/* C2- CPU0 OFF + CPU1 OFF + MPU CSWR */
+	{.exit_latency = 328 + 440 , .target_residency = 960, .valid = 1},
+	/* C3 - CPU0 OFF + CPU1 OFF + MPU OSWR */
+	{.exit_latency = 460 + 518 , .target_residency = 1100, .valid = 1},
+};
+
+#define OMAP4_NUM_STATES ARRAY_SIZE(cpuidle_params_table)
+
+struct omap4_idle_statedata omap4_idle_data[OMAP4_NUM_STATES];
+static struct powerdomain *mpu_pd, *cpu0_pd, *cpu1_pd;
+
+/**
+ * omap4_enter_idle - Programs OMAP4 to enter the specified state
+ * @dev: cpuidle device
+ * @drv: cpuidle driver
+ * @index: the index of state to be entered
+ *
+ * Called from the CPUidle framework to program the device to the
+ * specified low power state selected by the governor.
+ * Returns the amount of time spent in the low power state.
+ */
+static int omap4_enter_idle(struct cpuidle_device *dev,
+			struct cpuidle_driver *drv,
+			int index)
+{
+	struct omap4_idle_statedata *cx =
+			cpuidle_get_statedata(&dev->states_usage[index]);
+	struct timespec ts_preidle, ts_postidle, ts_idle;
+	u32 cpu1_state;
+	int idle_time;
+	int new_state_idx;
+	int cpu_id = smp_processor_id();
+
+	/* Used to keep track of the total time in idle */
+	getnstimeofday(&ts_preidle);
+
+	local_irq_disable();
+	local_fiq_disable();
+
+	/*
+	 * CPU0 has to stay ON (i.e in C1) until CPU1 is OFF state.
+	 * This is necessary to honour hardware recommondation
+	 * of triggeing all the possible low power modes once CPU1 is
+	 * out of coherency and in OFF mode.
+	 * Update dev->last_state so that governor stats reflects right
+	 * data.
+	 */
+	cpu1_state = pwrdm_read_pwrst(cpu1_pd);
+	if (cpu1_state != PWRDM_POWER_OFF) {
+		new_state_idx = drv->safe_state_index;
+		cx = cpuidle_get_statedata(&dev->states_usage[new_state_idx]);
+	}
+
+	if (index > 0)
+		clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_ENTER, &cpu_id);
+
+	/*
+	 * Call idle CPU PM enter notifier chain so that
+	 * VFP and per CPU interrupt context is saved.
+	 */
+	if (cx->cpu_state == PWRDM_POWER_OFF)
+		cpu_pm_enter();
+
+	pwrdm_set_logic_retst(mpu_pd, cx->mpu_logic_state);
+	omap_set_pwrdm_state(mpu_pd, cx->mpu_state);
+
+	/*
+	 * Call idle CPU cluster PM enter notifier chain
+	 * to save GIC and wakeupgen context.
+	 */
+	if ((cx->mpu_state == PWRDM_POWER_RET) &&
+		(cx->mpu_logic_state == PWRDM_POWER_OFF))
+			cpu_cluster_pm_enter();
+
+	omap4_enter_lowpower(dev->cpu, cx->cpu_state);
+
+	/*
+	 * Call idle CPU PM exit notifier chain to restore
+	 * VFP and per CPU IRQ context. Only CPU0 state is
+	 * considered since CPU1 is managed by CPU hotplug.
+	 */
+	if (pwrdm_read_prev_pwrst(cpu0_pd) == PWRDM_POWER_OFF)
+		cpu_pm_exit();
+
+	/*
+	 * Call idle CPU cluster PM exit notifier chain
+	 * to restore GIC and wakeupgen context.
+	 */
+	if (omap4_mpuss_read_prev_context_state())
+		cpu_cluster_pm_exit();
+
+	if (index > 0)
+		clockevents_notify(CLOCK_EVT_NOTIFY_BROADCAST_EXIT, &cpu_id);
+
+	getnstimeofday(&ts_postidle);
+	ts_idle = timespec_sub(ts_postidle, ts_preidle);
+
+	local_irq_enable();
+	local_fiq_enable();
+
+	idle_time = ts_idle.tv_nsec / NSEC_PER_USEC + ts_idle.tv_sec * \
+								USEC_PER_SEC;
+
+	/* Update cpuidle counters */
+	dev->last_residency = idle_time;
+
+	return index;
+}
+
+DEFINE_PER_CPU(struct cpuidle_device, omap4_idle_dev);
+
+struct cpuidle_driver omap4_idle_driver = {
+	.name =		"omap4_idle",
+	.owner =	THIS_MODULE,
+};
+
+static inline void _fill_cstate(struct cpuidle_driver *drv,
+					int idx, const char *descr)
+{
+	struct cpuidle_state *state = &drv->states[idx];
+
+	state->exit_latency	= cpuidle_params_table[idx].exit_latency;
+	state->target_residency	= cpuidle_params_table[idx].target_residency;
+	state->flags		= CPUIDLE_FLAG_TIME_VALID;
+	state->enter		= omap4_enter_idle;
+	sprintf(state->name, "C%d", idx + 1);
+	strncpy(state->desc, descr, CPUIDLE_DESC_LEN);
+}
+
+static inline struct omap4_idle_statedata *_fill_cstate_usage(
+					struct cpuidle_device *dev,
+					int idx)
+{
+	struct omap4_idle_statedata *cx = &omap4_idle_data[idx];
+	struct cpuidle_state_usage *state_usage = &dev->states_usage[idx];
+
+	cx->valid		= cpuidle_params_table[idx].valid;
+	cpuidle_set_statedata(state_usage, cx);
+
+	return cx;
+}
+
+
+
+/**
+ * omap4_idle_init - Init routine for OMAP4 idle
+ *
+ * Registers the OMAP4 specific cpuidle driver to the cpuidle
+ * framework with the valid set of states.
+ */
+int __init omap4_idle_init(void)
+{
+	struct omap4_idle_statedata *cx;
+	struct cpuidle_device *dev;
+	struct cpuidle_driver *drv = &omap4_idle_driver;
+	unsigned int cpu_id = 0;
+
+	mpu_pd = pwrdm_lookup("mpu_pwrdm");
+	cpu0_pd = pwrdm_lookup("cpu0_pwrdm");
+	cpu1_pd = pwrdm_lookup("cpu1_pwrdm");
+	if ((!mpu_pd) || (!cpu0_pd) || (!cpu1_pd))
+		return -ENODEV;
+
+
+	drv->safe_state_index = -1;
+	dev = &per_cpu(omap4_idle_dev, cpu_id);
+	dev->cpu = cpu_id;
+
+	/* C1 - CPU0 ON + CPU1 ON + MPU ON */
+	_fill_cstate(drv, 0, "MPUSS ON");
+	drv->safe_state_index = 0;
+	cx = _fill_cstate_usage(dev, 0);
+	cx->valid = 1;	/* C1 is always valid */
+	cx->cpu_state = PWRDM_POWER_ON;
+	cx->mpu_state = PWRDM_POWER_ON;
+	cx->mpu_logic_state = PWRDM_POWER_RET;
+
+	/* C2 - CPU0 OFF + CPU1 OFF + MPU CSWR */
+	_fill_cstate(drv, 1, "MPUSS CSWR");
+	cx = _fill_cstate_usage(dev, 1);
+	cx->cpu_state = PWRDM_POWER_OFF;
+	cx->mpu_state = PWRDM_POWER_RET;
+	cx->mpu_logic_state = PWRDM_POWER_RET;
+
+	/* C3 - CPU0 OFF + CPU1 OFF + MPU OSWR */
+	_fill_cstate(drv, 2, "MPUSS OSWR");
+	cx = _fill_cstate_usage(dev, 2);
+	cx->cpu_state = PWRDM_POWER_OFF;
+	cx->mpu_state = PWRDM_POWER_RET;
+	cx->mpu_logic_state = PWRDM_POWER_OFF;
+
+	drv->state_count = OMAP4_NUM_STATES;
+	cpuidle_register_driver(&omap4_idle_driver);
+
+	dev->state_count = OMAP4_NUM_STATES;
+	if (cpuidle_register_device(dev)) {
+		pr_err("%s: CPUidle register device failed\n", __func__);
+			return -EIO;
+		}
+
+	return 0;
+}
+#else
+int __init omap4_idle_init(void)
+{
+	return 0;
+}
+#endif /* CONFIG_CPU_IDLE */
diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c
index c15cfada5f13..46dfd1ae8f71 100644
--- a/arch/arm/mach-omap2/devices.c
+++ b/arch/arm/mach-omap2/devices.c
@@ -28,6 +28,7 @@
 #include <plat/board.h>
 #include <plat/mcbsp.h>
 #include <plat/mmc.h>
+#include <plat/iommu.h>
 #include <plat/dma.h>
 #include <plat/omap_hwmod.h>
 #include <plat/omap_device.h>
@@ -211,9 +212,15 @@ static struct platform_device omap3isp_device = {
 	.resource	= omap3isp_resources,
 };
 
+static struct omap_iommu_arch_data omap3_isp_iommu = {
+	.name = "isp",
+};
+
 int omap3_init_camera(struct isp_platform_data *pdata)
 {
 	omap3isp_device.dev.platform_data = pdata;
+	omap3isp_device.dev.archdata.iommu = &omap3_isp_iommu;
+
 	return platform_device_register(&omap3isp_device);
 }
 
@@ -336,6 +343,27 @@ static void omap_init_mcpdm(void)
 static inline void omap_init_mcpdm(void) {}
 #endif
 
+#if defined(CONFIG_SND_OMAP_SOC_DMIC) || \
+		defined(CONFIG_SND_OMAP_SOC_DMIC_MODULE)
+
+static void omap_init_dmic(void)
+{
+	struct omap_hwmod *oh;
+	struct platform_device *pdev;
+
+	oh = omap_hwmod_lookup("dmic");
+	if (!oh) {
+		printk(KERN_ERR "Could not look up mcpdm hw_mod\n");
+		return;
+	}
+
+	pdev = omap_device_build("omap-dmic", -1, oh, NULL, 0, NULL, 0, 0);
+	WARN(IS_ERR(pdev), "Can't build omap_device for omap-dmic.\n");
+}
+#else
+static inline void omap_init_dmic(void) {}
+#endif
+
 #if defined(CONFIG_SPI_OMAP24XX) || defined(CONFIG_SPI_OMAP24XX_MODULE)
 
 #include <plat/mcspi.h>
@@ -681,6 +709,7 @@ static int __init omap2_init_devices(void)
 	 */
 	omap_init_audio();
 	omap_init_mcpdm();
+	omap_init_dmic();
 	omap_init_camera();
 	omap_init_mbox();
 	omap_init_mcspi();
diff --git a/arch/arm/mach-omap2/hsmmc.c b/arch/arm/mach-omap2/hsmmc.c
index f4a1020559a7..bd844af13af5 100644
--- a/arch/arm/mach-omap2/hsmmc.c
+++ b/arch/arm/mach-omap2/hsmmc.c
@@ -171,6 +171,17 @@ static void omap4_hsmmc1_after_set_reg(struct device *dev, int slot,
 	}
 }
 
+static void hsmmc2_select_input_clk_src(struct omap_mmc_platform_data *mmc)
+{
+	u32 reg;
+
+	if (mmc->slots[0].internal_clock) {
+		reg = omap_ctrl_readl(control_devconf1_offset);
+		reg |= OMAP2_MMCSDIO2ADPCLKISEL;
+		omap_ctrl_writel(reg, control_devconf1_offset);
+	}
+}
+
 static void hsmmc23_before_set_reg(struct device *dev, int slot,
 				   int power_on, int vdd)
 {
@@ -179,16 +190,19 @@ static void hsmmc23_before_set_reg(struct device *dev, int slot,
 	if (mmc->slots[0].remux)
 		mmc->slots[0].remux(dev, slot, power_on);
 
-	if (power_on) {
-		/* Only MMC2 supports a CLKIN */
-		if (mmc->slots[0].internal_clock) {
-			u32 reg;
+	if (power_on)
+		hsmmc2_select_input_clk_src(mmc);
+}
 
-			reg = omap_ctrl_readl(control_devconf1_offset);
-			reg |= OMAP2_MMCSDIO2ADPCLKISEL;
-			omap_ctrl_writel(reg, control_devconf1_offset);
-		}
-	}
+static int am35x_hsmmc2_set_power(struct device *dev, int slot,
+				  int power_on, int vdd)
+{
+	struct omap_mmc_platform_data *mmc = dev->platform_data;
+
+	if (power_on)
+		hsmmc2_select_input_clk_src(mmc);
+
+	return 0;
 }
 
 static int nop_mmc_set_power(struct device *dev, int slot, int power_on,
@@ -200,10 +214,12 @@ static int nop_mmc_set_power(struct device *dev, int slot, int power_on,
 static inline void omap_hsmmc_mux(struct omap_mmc_platform_data *mmc_controller,
 			int controller_nr)
 {
-	if (gpio_is_valid(mmc_controller->slots[0].switch_pin))
+	if (gpio_is_valid(mmc_controller->slots[0].switch_pin) &&
+		(mmc_controller->slots[0].switch_pin < OMAP_MAX_GPIO_LINES))
 		omap_mux_init_gpio(mmc_controller->slots[0].switch_pin,
 					OMAP_PIN_INPUT_PULLUP);
-	if (gpio_is_valid(mmc_controller->slots[0].gpio_wp))
+	if (gpio_is_valid(mmc_controller->slots[0].gpio_wp) &&
+		(mmc_controller->slots[0].gpio_wp < OMAP_MAX_GPIO_LINES))
 		omap_mux_init_gpio(mmc_controller->slots[0].gpio_wp,
 					OMAP_PIN_INPUT_PULLUP);
 	if (cpu_is_omap34xx()) {
@@ -296,6 +312,7 @@ static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c,
 	mmc->slots[0].name = hc_name;
 	mmc->nr_slots = 1;
 	mmc->slots[0].caps = c->caps;
+	mmc->slots[0].pm_caps = c->pm_caps;
 	mmc->slots[0].internal_clock = !c->ext_clock;
 	mmc->dma_mask = 0xffffffff;
 	if (cpu_is_omap44xx())
@@ -336,11 +353,17 @@ static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c,
 	 *
 	 * temporary HACK: ocr_mask instead of fixed supply
 	 */
-	mmc->slots[0].ocr_mask = c->ocr_mask;
-
-	if (cpu_is_omap3517() || cpu_is_omap3505())
-		mmc->slots[0].set_power = nop_mmc_set_power;
+	if (cpu_is_omap3505() || cpu_is_omap3517())
+		mmc->slots[0].ocr_mask = MMC_VDD_165_195 |
+					 MMC_VDD_26_27 |
+					 MMC_VDD_27_28 |
+					 MMC_VDD_29_30 |
+					 MMC_VDD_30_31 |
+					 MMC_VDD_31_32;
 	else
+		mmc->slots[0].ocr_mask = c->ocr_mask;
+
+	if (!cpu_is_omap3517() && !cpu_is_omap3505())
 		mmc->slots[0].features |= HSMMC_HAS_PBIAS;
 
 	if (cpu_is_omap44xx() && (omap_rev() > OMAP4430_REV_ES1_0))
@@ -363,6 +386,9 @@ static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c,
 			}
 		}
 
+		if (cpu_is_omap3517() || cpu_is_omap3505())
+			mmc->slots[0].set_power = nop_mmc_set_power;
+
 		/* OMAP3630 HSMMC1 supports only 4-bit */
 		if (cpu_is_omap3630() &&
 				(c->caps & MMC_CAP_8_BIT_DATA)) {
@@ -372,6 +398,9 @@ static int __init omap_hsmmc_pdata_init(struct omap2_hsmmc_info *c,
 		}
 		break;
 	case 2:
+		if (cpu_is_omap3517() || cpu_is_omap3505())
+			mmc->slots[0].set_power = am35x_hsmmc2_set_power;
+
 		if (c->ext_clock)
 			c->transceiver = 1;
 		if (c->transceiver && (c->caps & MMC_CAP_8_BIT_DATA)) {
diff --git a/arch/arm/mach-omap2/hsmmc.h b/arch/arm/mach-omap2/hsmmc.h
index f757e78d4d4f..c4409730c4bb 100644
--- a/arch/arm/mach-omap2/hsmmc.h
+++ b/arch/arm/mach-omap2/hsmmc.h
@@ -12,6 +12,7 @@ struct omap2_hsmmc_info {
 	u8	mmc;		/* controller 1/2/3 */
 	u32	caps;		/* 4/8 wires and any additional host
 				 * capabilities OR'd (ref. linux/mmc/host.h) */
+	u32	pm_caps;	/* PM capabilities */
 	bool	transceiver;	/* MMC-2 option */
 	bool	ext_clock;	/* use external pin for input clock */
 	bool	cover_only;	/* No card detect - just cover switch */
diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c
index 27ad722df637..6c5826605eae 100644
--- a/arch/arm/mach-omap2/id.c
+++ b/arch/arm/mach-omap2/id.c
@@ -226,7 +226,7 @@ static void __init omap4_check_features(void)
 	}
 }
 
-static void __init ti816x_check_features(void)
+static void __init ti81xx_check_features(void)
 {
 	omap_features = OMAP3_HAS_NEON;
 }
@@ -340,6 +340,29 @@ static void __init omap3_check_revision(const char **cpu_rev)
 			break;
 		}
 		break;
+	case 0xb944:
+		omap_revision = AM335X_REV_ES1_0;
+		*cpu_rev = "1.0";
+	case 0xb8f2:
+		switch (rev) {
+		case 0:
+		/* FALLTHROUGH */
+		case 1:
+			omap_revision = TI8148_REV_ES1_0;
+			*cpu_rev = "1.0";
+			break;
+		case 2:
+			omap_revision = TI8148_REV_ES2_0;
+			*cpu_rev = "2.0";
+			break;
+		case 3:
+		/* FALLTHROUGH */
+		default:
+			omap_revision = TI8148_REV_ES2_1;
+			*cpu_rev = "2.1";
+			break;
+		}
+		break;
 	default:
 		/* Unknown default to latest silicon rev as default */
 		omap_revision = OMAP3630_REV_ES1_2;
@@ -367,7 +390,7 @@ static void __init omap4_check_revision(void)
 	 * Few initial 4430 ES2.0 samples IDCODE is same as ES1.0
 	 * Use ARM register to detect the correct ES version
 	 */
-	if (!rev && (hawkeye != 0xb94e)) {
+	if (!rev && (hawkeye != 0xb94e) && (hawkeye != 0xb975)) {
 		idcode = read_cpuid(CPUID_ID);
 		rev = (idcode & 0xf) - 1;
 	}
@@ -389,8 +412,11 @@ static void __init omap4_check_revision(void)
 			omap_revision = OMAP4430_REV_ES2_1;
 			break;
 		case 4:
-		default:
 			omap_revision = OMAP4430_REV_ES2_2;
+			break;
+		case 6:
+		default:
+			omap_revision = OMAP4430_REV_ES2_3;
 		}
 		break;
 	case 0xb94e:
@@ -401,9 +427,17 @@ static void __init omap4_check_revision(void)
 			break;
 		}
 		break;
+	case 0xb975:
+		switch (rev) {
+		case 0:
+		default:
+			omap_revision = OMAP4470_REV_ES1_0;
+			break;
+		}
+		break;
 	default:
 		/* Unknown default to latest silicon rev as default */
-		omap_revision = OMAP4430_REV_ES2_2;
+		omap_revision = OMAP4430_REV_ES2_3;
 	}
 
 	pr_info("OMAP%04x ES%d.%d\n", omap_rev() >> 16,
@@ -432,6 +466,10 @@ static void __init omap3_cpuinfo(const char *cpu_rev)
 		cpu_name = (omap3_has_sgx()) ? "AM3517" : "AM3505";
 	} else if (cpu_is_ti816x()) {
 		cpu_name = "TI816X";
+	} else if (cpu_is_am335x()) {
+		cpu_name =  "AM335X";
+	} else if (cpu_is_ti814x()) {
+		cpu_name = "TI814X";
 	} else if (omap3_has_iva() && omap3_has_sgx()) {
 		/* OMAP3430, OMAP3525, OMAP3515, OMAP3503 devices */
 		cpu_name = "OMAP3430/3530";
@@ -472,11 +510,11 @@ void __init omap2_check_revision(void)
 	} else if (cpu_is_omap34xx()) {
 		omap3_check_revision(&cpu_rev);
 
-		/* TI816X doesn't have feature register */
-		if (!cpu_is_ti816x())
+		/* TI81XX doesn't have feature register */
+		if (!cpu_is_ti81xx())
 			omap3_check_features();
 		else
-			ti816x_check_features();
+			ti81xx_check_features();
 
 		omap3_cpuinfo(cpu_rev);
 		return;
diff --git a/arch/arm/mach-omap2/include/mach/barriers.h b/arch/arm/mach-omap2/include/mach/barriers.h
new file mode 100644
index 000000000000..4fa72c7cc7cd
--- /dev/null
+++ b/arch/arm/mach-omap2/include/mach/barriers.h
@@ -0,0 +1,31 @@
+/*
+ * OMAP memory barrier header.
+ *
+ * Copyright (C) 2011 Texas Instruments, Inc.
+ *  Santosh Shilimkar <santosh.shilimkar@ti.com>
+ *  Richard Woodruff <r-woodruff2@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+#ifndef __MACH_BARRIERS_H
+#define __MACH_BARRIERS_H
+
+extern void omap_bus_sync(void);
+
+#define rmb()		dsb()
+#define wmb()		do { dsb(); outer_sync(); omap_bus_sync(); } while (0)
+#define mb()		wmb()
+
+#endif	/* __MACH_BARRIERS_H */
diff --git a/arch/arm/mach-omap2/include/mach/debug-macro.S b/arch/arm/mach-omap2/include/mach/debug-macro.S
index 13f98e59cfef..cdfc2a1f0e75 100644
--- a/arch/arm/mach-omap2/include/mach/debug-macro.S
+++ b/arch/arm/mach-omap2/include/mach/debug-macro.S
@@ -66,11 +66,11 @@ omap_uart_lsr:	.word	0
 		beq	34f			@ configure OMAP3UART4
 		cmp	\rp, #OMAP4UART4	@ only on 44xx
 		beq	44f			@ configure OMAP4UART4
-		cmp	\rp, #TI816XUART1	@ ti816x UART offsets different
+		cmp	\rp, #TI81XXUART1	@ ti81Xx UART offsets different
 		beq	81f			@ configure UART1
-		cmp	\rp, #TI816XUART2	@ ti816x UART offsets different
+		cmp	\rp, #TI81XXUART2	@ ti81Xx UART offsets different
 		beq	82f			@ configure UART2
-		cmp	\rp, #TI816XUART3	@ ti816x UART offsets different
+		cmp	\rp, #TI81XXUART3	@ ti81Xx UART offsets different
 		beq	83f			@ configure UART3
 		cmp	\rp, #ZOOM_UART		@ only on zoom2/3
 		beq	95f			@ configure ZOOM_UART
@@ -94,11 +94,11 @@ omap_uart_lsr:	.word	0
 		b	98f
 44:		mov	\rp, #UART_OFFSET(OMAP4_UART4_BASE)
 		b	98f
-81:		mov	\rp, #UART_OFFSET(TI816X_UART1_BASE)
+81:		mov	\rp, #UART_OFFSET(TI81XX_UART1_BASE)
 		b	98f
-82:		mov	\rp, #UART_OFFSET(TI816X_UART2_BASE)
+82:		mov	\rp, #UART_OFFSET(TI81XX_UART2_BASE)
 		b	98f
-83:		mov	\rp, #UART_OFFSET(TI816X_UART3_BASE)
+83:		mov	\rp, #UART_OFFSET(TI81XX_UART3_BASE)
 		b	98f
 
 95:		ldr	\rp, =ZOOM_UART_BASE
diff --git a/arch/arm/mach-omap2/include/mach/omap-secure.h b/arch/arm/mach-omap2/include/mach/omap-secure.h
new file mode 100644
index 000000000000..c90a43589abe
--- /dev/null
+++ b/arch/arm/mach-omap2/include/mach/omap-secure.h
@@ -0,0 +1,57 @@
+/*
+ * omap-secure.h: OMAP Secure infrastructure header.
+ *
+ * Copyright (C) 2011 Texas Instruments, Inc.
+ *	Santosh Shilimkar <santosh.shilimkar@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef OMAP_ARCH_OMAP_SECURE_H
+#define OMAP_ARCH_OMAP_SECURE_H
+
+/* Monitor error code */
+#define  API_HAL_RET_VALUE_NS2S_CONVERSION_ERROR	0xFFFFFFFE
+#define  API_HAL_RET_VALUE_SERVICE_UNKNWON		0xFFFFFFFF
+
+/* HAL API error codes */
+#define  API_HAL_RET_VALUE_OK		0x00
+#define  API_HAL_RET_VALUE_FAIL		0x01
+
+/* Secure HAL API flags */
+#define FLAG_START_CRITICAL		0x4
+#define FLAG_IRQFIQ_MASK		0x3
+#define FLAG_IRQ_ENABLE			0x2
+#define FLAG_FIQ_ENABLE			0x1
+#define NO_FLAG				0x0
+
+/* Maximum Secure memory storage size */
+#define OMAP_SECURE_RAM_STORAGE	(88 * SZ_1K)
+
+/* Secure low power HAL API index */
+#define OMAP4_HAL_SAVESECURERAM_INDEX	0x1a
+#define OMAP4_HAL_SAVEHW_INDEX		0x1b
+#define OMAP4_HAL_SAVEALL_INDEX		0x1c
+#define OMAP4_HAL_SAVEGIC_INDEX		0x1d
+
+/* Secure Monitor mode APIs */
+#define OMAP4_MON_SCU_PWR_INDEX		0x108
+#define OMAP4_MON_L2X0_DBG_CTRL_INDEX	0x100
+#define OMAP4_MON_L2X0_CTRL_INDEX	0x102
+#define OMAP4_MON_L2X0_AUXCTRL_INDEX	0x109
+#define OMAP4_MON_L2X0_PREFETCH_INDEX	0x113
+
+/* Secure PPA(Primary Protected Application) APIs */
+#define OMAP4_PPA_L2_POR_INDEX		0x23
+#define OMAP4_PPA_CPU_ACTRL_SMP_INDEX	0x25
+
+#ifndef __ASSEMBLER__
+
+extern u32 omap_secure_dispatcher(u32 idx, u32 flag, u32 nargs,
+				u32 arg1, u32 arg2, u32 arg3, u32 arg4);
+extern u32 omap_smc2(u32 id, u32 falg, u32 pargs);
+extern phys_addr_t omap_secure_ram_mempool_base(void);
+
+#endif /* __ASSEMBLER__ */
+#endif /* OMAP_ARCH_OMAP_SECURE_H */
diff --git a/arch/arm/mach-omap2/include/mach/omap-wakeupgen.h b/arch/arm/mach-omap2/include/mach/omap-wakeupgen.h
new file mode 100644
index 000000000000..d79321b0f2a2
--- /dev/null
+++ b/arch/arm/mach-omap2/include/mach/omap-wakeupgen.h
@@ -0,0 +1,39 @@
+/*
+ * OMAP WakeupGen header file
+ *
+ * Copyright (C) 2011 Texas Instruments, Inc.
+ *	Santosh Shilimkar <santosh.shilimkar@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef OMAP_ARCH_WAKEUPGEN_H
+#define OMAP_ARCH_WAKEUPGEN_H
+
+#define OMAP_WKG_CONTROL_0			0x00
+#define OMAP_WKG_ENB_A_0			0x10
+#define OMAP_WKG_ENB_B_0			0x14
+#define OMAP_WKG_ENB_C_0			0x18
+#define OMAP_WKG_ENB_D_0			0x1c
+#define OMAP_WKG_ENB_SECURE_A_0			0x20
+#define OMAP_WKG_ENB_SECURE_B_0			0x24
+#define OMAP_WKG_ENB_SECURE_C_0			0x28
+#define OMAP_WKG_ENB_SECURE_D_0			0x2c
+#define OMAP_WKG_ENB_A_1			0x410
+#define OMAP_WKG_ENB_B_1			0x414
+#define OMAP_WKG_ENB_C_1			0x418
+#define OMAP_WKG_ENB_D_1			0x41c
+#define OMAP_WKG_ENB_SECURE_A_1			0x420
+#define OMAP_WKG_ENB_SECURE_B_1			0x424
+#define OMAP_WKG_ENB_SECURE_C_1			0x428
+#define OMAP_WKG_ENB_SECURE_D_1			0x42c
+#define OMAP_AUX_CORE_BOOT_0			0x800
+#define OMAP_AUX_CORE_BOOT_1			0x804
+#define OMAP_PTMSYNCREQ_MASK			0xc00
+#define OMAP_PTMSYNCREQ_EN			0xc04
+#define OMAP_TIMESTAMPCYCLELO			0xc08
+#define OMAP_TIMESTAMPCYCLEHI			0xc0c
+
+extern int __init omap_wakeupgen_init(void);
+#endif
diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c
index 3f565dd2ea8d..3f174d51f67f 100644
--- a/arch/arm/mach-omap2/io.c
+++ b/arch/arm/mach-omap2/io.c
@@ -176,14 +176,31 @@ static struct map_desc omap34xx_io_desc[] __initdata = {
 };
 #endif
 
-#ifdef CONFIG_SOC_OMAPTI816X
-static struct map_desc omapti816x_io_desc[] __initdata = {
+#ifdef CONFIG_SOC_OMAPTI81XX
+static struct map_desc omapti81xx_io_desc[] __initdata = {
+	{
+		.virtual	= L4_34XX_VIRT,
+		.pfn		= __phys_to_pfn(L4_34XX_PHYS),
+		.length		= L4_34XX_SIZE,
+		.type		= MT_DEVICE
+	}
+};
+#endif
+
+#ifdef CONFIG_SOC_OMAPAM33XX
+static struct map_desc omapam33xx_io_desc[] __initdata = {
 	{
 		.virtual	= L4_34XX_VIRT,
 		.pfn		= __phys_to_pfn(L4_34XX_PHYS),
 		.length		= L4_34XX_SIZE,
 		.type		= MT_DEVICE
 	},
+	{
+		.virtual	= L4_WK_AM33XX_VIRT,
+		.pfn		= __phys_to_pfn(L4_WK_AM33XX_PHYS),
+		.length		= L4_WK_AM33XX_SIZE,
+		.type		= MT_DEVICE
+	}
 };
 #endif
 
@@ -237,6 +254,15 @@ static struct map_desc omap44xx_io_desc[] __initdata = {
 		.length		= L4_EMU_44XX_SIZE,
 		.type		= MT_DEVICE,
 	},
+#ifdef CONFIG_OMAP4_ERRATA_I688
+	{
+		.virtual	= OMAP4_SRAM_VA,
+		.pfn		= __phys_to_pfn(OMAP4_SRAM_PA),
+		.length		= PAGE_SIZE,
+		.type		= MT_MEMORY_SO,
+	},
+#endif
+
 };
 #endif
 
@@ -263,10 +289,17 @@ void __init omap34xx_map_common_io(void)
 }
 #endif
 
-#ifdef CONFIG_SOC_OMAPTI816X
-void __init omapti816x_map_common_io(void)
+#ifdef CONFIG_SOC_OMAPTI81XX
+void __init omapti81xx_map_common_io(void)
+{
+	iotable_init(omapti81xx_io_desc, ARRAY_SIZE(omapti81xx_io_desc));
+}
+#endif
+
+#ifdef CONFIG_SOC_OMAPAM33XX
+void __init omapam33xx_map_common_io(void)
 {
-	iotable_init(omapti816x_io_desc, ARRAY_SIZE(omapti816x_io_desc));
+	iotable_init(omapam33xx_io_desc, ARRAY_SIZE(omapam33xx_io_desc));
 }
 #endif
 
@@ -418,9 +451,9 @@ void __init am35xx_init_early(void)
 	omap3_init_early();
 }
 
-void __init ti816x_init_early(void)
+void __init ti81xx_init_early(void)
 {
-	omap2_set_globals_ti816x();
+	omap2_set_globals_ti81xx();
 	omap_common_init_early();
 	omap3xxx_voltagedomains_init();
 	omap3xxx_powerdomains_init();
diff --git a/arch/arm/mach-omap2/irq.c b/arch/arm/mach-omap2/irq.c
index 42b1d6591912..1fef061f7927 100644
--- a/arch/arm/mach-omap2/irq.c
+++ b/arch/arm/mach-omap2/irq.c
@@ -193,7 +193,7 @@ void __init omap3_init_irq(void)
 	omap_init_irq(OMAP34XX_IC_BASE, 96);
 }
 
-void __init ti816x_init_irq(void)
+void __init ti81xx_init_irq(void)
 {
 	omap_init_irq(OMAP34XX_IC_BASE, 128);
 }
diff --git a/arch/arm/mach-omap2/mux.c b/arch/arm/mach-omap2/mux.c
index 655e9480eb98..e1cc75d1a57a 100644
--- a/arch/arm/mach-omap2/mux.c
+++ b/arch/arm/mach-omap2/mux.c
@@ -32,6 +32,8 @@
 #include <linux/debugfs.h>
 #include <linux/seq_file.h>
 #include <linux/uaccess.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
 
 #include <asm/system.h>
 
@@ -39,6 +41,7 @@
 
 #include "control.h"
 #include "mux.h"
+#include "prm.h"
 
 #define OMAP_MUX_BASE_OFFSET		0x30	/* Offset from CTRL_BASE */
 #define OMAP_MUX_BASE_SZ		0x5ca
@@ -306,7 +309,8 @@ omap_hwmod_mux_init(struct omap_device_pad *bpads, int nr_pads)
 		pad->idle = bpad->idle;
 		pad->off = bpad->off;
 
-		if (pad->flags & OMAP_DEVICE_PAD_REMUX)
+		if (pad->flags &
+		    (OMAP_DEVICE_PAD_REMUX | OMAP_DEVICE_PAD_WAKEUP))
 			nr_pads_dynamic++;
 
 		pr_debug("%s: Initialized %s\n", __func__, pad->name);
@@ -331,7 +335,8 @@ omap_hwmod_mux_init(struct omap_device_pad *bpads, int nr_pads)
 	for (i = 0; i < hmux->nr_pads; i++) {
 		struct omap_device_pad *pad = &hmux->pads[i];
 
-		if (pad->flags & OMAP_DEVICE_PAD_REMUX) {
+		if (pad->flags &
+		    (OMAP_DEVICE_PAD_REMUX | OMAP_DEVICE_PAD_WAKEUP)) {
 			pr_debug("%s: pad %s tagged dynamic\n",
 					__func__, pad->name);
 			hmux->pads_dynamic[nr_pads_dynamic] = pad;
@@ -351,6 +356,78 @@ err1:
 	return NULL;
 }
 
+/**
+ * omap_hwmod_mux_scan_wakeups - omap hwmod scan wakeup pads
+ * @hmux: Pads for a hwmod
+ * @mpu_irqs: MPU irq array for a hwmod
+ *
+ * Scans the wakeup status of pads for a single hwmod.  If an irq
+ * array is defined for this mux, the parser will call the registered
+ * ISRs for corresponding pads, otherwise the parser will stop at the
+ * first wakeup active pad and return.  Returns true if there is a
+ * pending and non-served wakeup event for the mux, otherwise false.
+ */
+static bool omap_hwmod_mux_scan_wakeups(struct omap_hwmod_mux_info *hmux,
+		struct omap_hwmod_irq_info *mpu_irqs)
+{
+	int i, irq;
+	unsigned int val;
+	u32 handled_irqs = 0;
+
+	for (i = 0; i < hmux->nr_pads_dynamic; i++) {
+		struct omap_device_pad *pad = hmux->pads_dynamic[i];
+
+		if (!(pad->flags & OMAP_DEVICE_PAD_WAKEUP) ||
+		    !(pad->idle & OMAP_WAKEUP_EN))
+			continue;
+
+		val = omap_mux_read(pad->partition, pad->mux->reg_offset);
+		if (!(val & OMAP_WAKEUP_EVENT))
+			continue;
+
+		if (!hmux->irqs)
+			return true;
+
+		irq = hmux->irqs[i];
+		/* make sure we only handle each irq once */
+		if (handled_irqs & 1 << irq)
+			continue;
+
+		handled_irqs |= 1 << irq;
+
+		generic_handle_irq(mpu_irqs[irq].irq);
+	}
+
+	return false;
+}
+
+/**
+ * _omap_hwmod_mux_handle_irq - Process wakeup events for a single hwmod
+ *
+ * Checks a single hwmod for every wakeup capable pad to see if there is an
+ * active wakeup event. If this is the case, call the corresponding ISR.
+ */
+static int _omap_hwmod_mux_handle_irq(struct omap_hwmod *oh, void *data)
+{
+	if (!oh->mux || !oh->mux->enabled)
+		return 0;
+	if (omap_hwmod_mux_scan_wakeups(oh->mux, oh->mpu_irqs))
+		generic_handle_irq(oh->mpu_irqs[0].irq);
+	return 0;
+}
+
+/**
+ * omap_hwmod_mux_handle_irq - Process pad wakeup irqs.
+ *
+ * Calls a function for each registered omap_hwmod to check
+ * pad wakeup statuses.
+ */
+static irqreturn_t omap_hwmod_mux_handle_irq(int irq, void *unused)
+{
+	omap_hwmod_for_each(_omap_hwmod_mux_handle_irq, NULL);
+	return IRQ_HANDLED;
+}
+
 /* Assumes the calling function takes care of locking */
 void omap_hwmod_mux(struct omap_hwmod_mux_info *hmux, u8 state)
 {
@@ -715,6 +792,7 @@ static void __init omap_mux_free_names(struct omap_mux *m)
 static int __init omap_mux_late_init(void)
 {
 	struct omap_mux_partition *partition;
+	int ret;
 
 	list_for_each_entry(partition, &mux_partitions, node) {
 		struct omap_mux_entry *e, *tmp;
@@ -735,6 +813,13 @@ static int __init omap_mux_late_init(void)
 		}
 	}
 
+	ret = request_irq(omap_prcm_event_to_irq("io"),
+		omap_hwmod_mux_handle_irq, IRQF_SHARED | IRQF_NO_SUSPEND,
+			"hwmod_io", omap_mux_late_init);
+
+	if (ret)
+		pr_warning("mux: Failed to setup hwmod io irq %d\n", ret);
+
 	omap_mux_dbg_init();
 
 	return 0;
diff --git a/arch/arm/mach-omap2/omap-headsmp.S b/arch/arm/mach-omap2/omap-headsmp.S
index 4ee6aeca885a..b13ef7ef5ef4 100644
--- a/arch/arm/mach-omap2/omap-headsmp.S
+++ b/arch/arm/mach-omap2/omap-headsmp.S
@@ -18,11 +18,6 @@
 #include <linux/linkage.h>
 #include <linux/init.h>
 
-/* Physical address needed since MMU not enabled yet on secondary core */
-#define OMAP4_AUX_CORE_BOOT1_PA			0x48281804
-
-	__INIT
-
 /*
  * OMAP4 specific entry point for secondary CPU to jump from ROM
  * code.  This routine also provides a holding flag into which
diff --git a/arch/arm/mach-omap2/omap-hotplug.c b/arch/arm/mach-omap2/omap-hotplug.c
index e5a1c3f40a86..adbe4d8c7caf 100644
--- a/arch/arm/mach-omap2/omap-hotplug.c
+++ b/arch/arm/mach-omap2/omap-hotplug.c
@@ -22,6 +22,8 @@
 
 #include "common.h"
 
+#include "powerdomain.h"
+
 int platform_cpu_kill(unsigned int cpu)
 {
 	return 1;
@@ -33,6 +35,8 @@ int platform_cpu_kill(unsigned int cpu)
  */
 void platform_cpu_die(unsigned int cpu)
 {
+	unsigned int this_cpu;
+
 	flush_cache_all();
 	dsb();
 
@@ -40,15 +44,15 @@ void platform_cpu_die(unsigned int cpu)
 	 * we're ready for shutdown now, so do it
 	 */
 	if (omap_modify_auxcoreboot0(0x0, 0x200) != 0x0)
-		printk(KERN_CRIT "Secure clear status failed\n");
+		pr_err("Secure clear status failed\n");
 
 	for (;;) {
 		/*
-		 * Execute WFI
+		 * Enter into low power state
 		 */
-		do_wfi();
-
-		if (omap_read_auxcoreboot0() == cpu) {
+		omap4_hotplug_cpu(cpu, PWRDM_POWER_OFF);
+		this_cpu = smp_processor_id();
+		if (omap_read_auxcoreboot0() == this_cpu) {
 			/*
 			 * OK, proper wakeup, we're done
 			 */
diff --git a/arch/arm/mach-omap2/omap-mpuss-lowpower.c b/arch/arm/mach-omap2/omap-mpuss-lowpower.c
new file mode 100644
index 000000000000..1d5d01056558
--- /dev/null
+++ b/arch/arm/mach-omap2/omap-mpuss-lowpower.c
@@ -0,0 +1,398 @@
+/*
+ * OMAP MPUSS low power code
+ *
+ * Copyright (C) 2011 Texas Instruments, Inc.
+ *	Santosh Shilimkar <santosh.shilimkar@ti.com>
+ *
+ * OMAP4430 MPUSS mainly consists of dual Cortex-A9 with per-CPU
+ * Local timer and Watchdog, GIC, SCU, PL310 L2 cache controller,
+ * CPU0 and CPU1 LPRM modules.
+ * CPU0, CPU1 and MPUSS each have there own power domain and
+ * hence multiple low power combinations of MPUSS are possible.
+ *
+ * The CPU0 and CPU1 can't support Closed switch Retention (CSWR)
+ * because the mode is not supported by hw constraints of dormant
+ * mode. While waking up from the dormant mode, a reset  signal
+ * to the Cortex-A9 processor must be asserted by the external
+ * power controller.
+ *
+ * With architectural inputs and hardware recommendations, only
+ * below modes are supported from power gain vs latency point of view.
+ *
+ *	CPU0		CPU1		MPUSS
+ *	----------------------------------------------
+ *	ON		ON		ON
+ *	ON(Inactive)	OFF		ON(Inactive)
+ *	OFF		OFF		CSWR
+ *	OFF		OFF		OSWR
+ *	OFF		OFF		OFF(Device OFF *TBD)
+ *	----------------------------------------------
+ *
+ * Note: CPU0 is the master core and it is the last CPU to go down
+ * and first to wake-up when MPUSS low power states are excercised
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/io.h>
+#include <linux/errno.h>
+#include <linux/linkage.h>
+#include <linux/smp.h>
+
+#include <asm/cacheflush.h>
+#include <asm/tlbflush.h>
+#include <asm/smp_scu.h>
+#include <asm/system.h>
+#include <asm/pgalloc.h>
+#include <asm/suspend.h>
+#include <asm/hardware/cache-l2x0.h>
+
+#include <plat/omap44xx.h>
+
+#include "common.h"
+#include "omap4-sar-layout.h"
+#include "pm.h"
+#include "prcm_mpu44xx.h"
+#include "prminst44xx.h"
+#include "prcm44xx.h"
+#include "prm44xx.h"
+#include "prm-regbits-44xx.h"
+
+#ifdef CONFIG_SMP
+
+struct omap4_cpu_pm_info {
+	struct powerdomain *pwrdm;
+	void __iomem *scu_sar_addr;
+	void __iomem *wkup_sar_addr;
+	void __iomem *l2x0_sar_addr;
+};
+
+static DEFINE_PER_CPU(struct omap4_cpu_pm_info, omap4_pm_info);
+static struct powerdomain *mpuss_pd;
+static void __iomem *sar_base;
+
+/*
+ * Program the wakeup routine address for the CPU0 and CPU1
+ * used for OFF or DORMANT wakeup.
+ */
+static inline void set_cpu_wakeup_addr(unsigned int cpu_id, u32 addr)
+{
+	struct omap4_cpu_pm_info *pm_info = &per_cpu(omap4_pm_info, cpu_id);
+
+	__raw_writel(addr, pm_info->wkup_sar_addr);
+}
+
+/*
+ * Set the CPUx powerdomain's previous power state
+ */
+static inline void set_cpu_next_pwrst(unsigned int cpu_id,
+				unsigned int power_state)
+{
+	struct omap4_cpu_pm_info *pm_info = &per_cpu(omap4_pm_info, cpu_id);
+
+	pwrdm_set_next_pwrst(pm_info->pwrdm, power_state);
+}
+
+/*
+ * Read CPU's previous power state
+ */
+static inline unsigned int read_cpu_prev_pwrst(unsigned int cpu_id)
+{
+	struct omap4_cpu_pm_info *pm_info = &per_cpu(omap4_pm_info, cpu_id);
+
+	return pwrdm_read_prev_pwrst(pm_info->pwrdm);
+}
+
+/*
+ * Clear the CPUx powerdomain's previous power state
+ */
+static inline void clear_cpu_prev_pwrst(unsigned int cpu_id)
+{
+	struct omap4_cpu_pm_info *pm_info = &per_cpu(omap4_pm_info, cpu_id);
+
+	pwrdm_clear_all_prev_pwrst(pm_info->pwrdm);
+}
+
+/*
+ * Store the SCU power status value to scratchpad memory
+ */
+static void scu_pwrst_prepare(unsigned int cpu_id, unsigned int cpu_state)
+{
+	struct omap4_cpu_pm_info *pm_info = &per_cpu(omap4_pm_info, cpu_id);
+	u32 scu_pwr_st;
+
+	switch (cpu_state) {
+	case PWRDM_POWER_RET:
+		scu_pwr_st = SCU_PM_DORMANT;
+		break;
+	case PWRDM_POWER_OFF:
+		scu_pwr_st = SCU_PM_POWEROFF;
+		break;
+	case PWRDM_POWER_ON:
+	case PWRDM_POWER_INACTIVE:
+	default:
+		scu_pwr_st = SCU_PM_NORMAL;
+		break;
+	}
+
+	__raw_writel(scu_pwr_st, pm_info->scu_sar_addr);
+}
+
+/* Helper functions for MPUSS OSWR */
+static inline void mpuss_clear_prev_logic_pwrst(void)
+{
+	u32 reg;
+
+	reg = omap4_prminst_read_inst_reg(OMAP4430_PRM_PARTITION,
+		OMAP4430_PRM_MPU_INST, OMAP4_RM_MPU_MPU_CONTEXT_OFFSET);
+	omap4_prminst_write_inst_reg(reg, OMAP4430_PRM_PARTITION,
+		OMAP4430_PRM_MPU_INST, OMAP4_RM_MPU_MPU_CONTEXT_OFFSET);
+}
+
+static inline void cpu_clear_prev_logic_pwrst(unsigned int cpu_id)
+{
+	u32 reg;
+
+	if (cpu_id) {
+		reg = omap4_prcm_mpu_read_inst_reg(OMAP4430_PRCM_MPU_CPU1_INST,
+					OMAP4_RM_CPU1_CPU1_CONTEXT_OFFSET);
+		omap4_prcm_mpu_write_inst_reg(reg, OMAP4430_PRCM_MPU_CPU1_INST,
+					OMAP4_RM_CPU1_CPU1_CONTEXT_OFFSET);
+	} else {
+		reg = omap4_prcm_mpu_read_inst_reg(OMAP4430_PRCM_MPU_CPU0_INST,
+					OMAP4_RM_CPU0_CPU0_CONTEXT_OFFSET);
+		omap4_prcm_mpu_write_inst_reg(reg, OMAP4430_PRCM_MPU_CPU0_INST,
+					OMAP4_RM_CPU0_CPU0_CONTEXT_OFFSET);
+	}
+}
+
+/**
+ * omap4_mpuss_read_prev_context_state:
+ * Function returns the MPUSS previous context state
+ */
+u32 omap4_mpuss_read_prev_context_state(void)
+{
+	u32 reg;
+
+	reg = omap4_prminst_read_inst_reg(OMAP4430_PRM_PARTITION,
+		OMAP4430_PRM_MPU_INST, OMAP4_RM_MPU_MPU_CONTEXT_OFFSET);
+	reg &= OMAP4430_LOSTCONTEXT_DFF_MASK;
+	return reg;
+}
+
+/*
+ * Store the CPU cluster state for L2X0 low power operations.
+ */
+static void l2x0_pwrst_prepare(unsigned int cpu_id, unsigned int save_state)
+{
+	struct omap4_cpu_pm_info *pm_info = &per_cpu(omap4_pm_info, cpu_id);
+
+	__raw_writel(save_state, pm_info->l2x0_sar_addr);
+}
+
+/*
+ * Save the L2X0 AUXCTRL and POR value to SAR memory. Its used to
+ * in every restore MPUSS OFF path.
+ */
+#ifdef CONFIG_CACHE_L2X0
+static void save_l2x0_context(void)
+{
+	u32 val;
+	void __iomem *l2x0_base = omap4_get_l2cache_base();
+
+	val = __raw_readl(l2x0_base + L2X0_AUX_CTRL);
+	__raw_writel(val, sar_base + L2X0_AUXCTRL_OFFSET);
+	val = __raw_readl(l2x0_base + L2X0_PREFETCH_CTRL);
+	__raw_writel(val, sar_base + L2X0_PREFETCH_CTRL_OFFSET);
+}
+#else
+static void save_l2x0_context(void)
+{}
+#endif
+
+/**
+ * omap4_enter_lowpower: OMAP4 MPUSS Low Power Entry Function
+ * The purpose of this function is to manage low power programming
+ * of OMAP4 MPUSS subsystem
+ * @cpu : CPU ID
+ * @power_state: Low power state.
+ *
+ * MPUSS states for the context save:
+ * save_state =
+ *	0 - Nothing lost and no need to save: MPUSS INACTIVE
+ *	1 - CPUx L1 and logic lost: MPUSS CSWR
+ *	2 - CPUx L1 and logic lost + GIC lost: MPUSS OSWR
+ *	3 - CPUx L1 and logic lost + GIC + L2 lost: DEVICE OFF
+ */
+int omap4_enter_lowpower(unsigned int cpu, unsigned int power_state)
+{
+	unsigned int save_state = 0;
+	unsigned int wakeup_cpu;
+
+	if (omap_rev() == OMAP4430_REV_ES1_0)
+		return -ENXIO;
+
+	switch (power_state) {
+	case PWRDM_POWER_ON:
+	case PWRDM_POWER_INACTIVE:
+		save_state = 0;
+		break;
+	case PWRDM_POWER_OFF:
+		save_state = 1;
+		break;
+	case PWRDM_POWER_RET:
+	default:
+		/*
+		 * CPUx CSWR is invalid hardware state. Also CPUx OSWR
+		 * doesn't make much scense, since logic is lost and $L1
+		 * needs to be cleaned because of coherency. This makes
+		 * CPUx OSWR equivalent to CPUX OFF and hence not supported
+		 */
+		WARN_ON(1);
+		return -ENXIO;
+	}
+
+	pwrdm_pre_transition();
+
+	/*
+	 * Check MPUSS next state and save interrupt controller if needed.
+	 * In MPUSS OSWR or device OFF, interrupt controller  contest is lost.
+	 */
+	mpuss_clear_prev_logic_pwrst();
+	pwrdm_clear_all_prev_pwrst(mpuss_pd);
+	if ((pwrdm_read_next_pwrst(mpuss_pd) == PWRDM_POWER_RET) &&
+		(pwrdm_read_logic_retst(mpuss_pd) == PWRDM_POWER_OFF))
+		save_state = 2;
+
+	clear_cpu_prev_pwrst(cpu);
+	cpu_clear_prev_logic_pwrst(cpu);
+	set_cpu_next_pwrst(cpu, power_state);
+	set_cpu_wakeup_addr(cpu, virt_to_phys(omap4_cpu_resume));
+	scu_pwrst_prepare(cpu, power_state);
+	l2x0_pwrst_prepare(cpu, save_state);
+
+	/*
+	 * Call low level function  with targeted low power state.
+	 */
+	cpu_suspend(save_state, omap4_finish_suspend);
+
+	/*
+	 * Restore the CPUx power state to ON otherwise CPUx
+	 * power domain can transitions to programmed low power
+	 * state while doing WFI outside the low powe code. On
+	 * secure devices, CPUx does WFI which can result in
+	 * domain transition
+	 */
+	wakeup_cpu = smp_processor_id();
+	set_cpu_next_pwrst(wakeup_cpu, PWRDM_POWER_ON);
+
+	pwrdm_post_transition();
+
+	return 0;
+}
+
+/**
+ * omap4_hotplug_cpu: OMAP4 CPU hotplug entry
+ * @cpu : CPU ID
+ * @power_state: CPU low power state.
+ */
+int omap4_hotplug_cpu(unsigned int cpu, unsigned int power_state)
+{
+	unsigned int cpu_state = 0;
+
+	if (omap_rev() == OMAP4430_REV_ES1_0)
+		return -ENXIO;
+
+	if (power_state == PWRDM_POWER_OFF)
+		cpu_state = 1;
+
+	clear_cpu_prev_pwrst(cpu);
+	set_cpu_next_pwrst(cpu, power_state);
+	set_cpu_wakeup_addr(cpu, virt_to_phys(omap_secondary_startup));
+	scu_pwrst_prepare(cpu, power_state);
+
+	/*
+	 * CPU never retuns back if targetted power state is OFF mode.
+	 * CPU ONLINE follows normal CPU ONLINE ptah via
+	 * omap_secondary_startup().
+	 */
+	omap4_finish_suspend(cpu_state);
+
+	set_cpu_next_pwrst(cpu, PWRDM_POWER_ON);
+	return 0;
+}
+
+
+/*
+ * Initialise OMAP4 MPUSS
+ */
+int __init omap4_mpuss_init(void)
+{
+	struct omap4_cpu_pm_info *pm_info;
+
+	if (omap_rev() == OMAP4430_REV_ES1_0) {
+		WARN(1, "Power Management not supported on OMAP4430 ES1.0\n");
+		return -ENODEV;
+	}
+
+	sar_base = omap4_get_sar_ram_base();
+
+	/* Initilaise per CPU PM information */
+	pm_info = &per_cpu(omap4_pm_info, 0x0);
+	pm_info->scu_sar_addr = sar_base + SCU_OFFSET0;
+	pm_info->wkup_sar_addr = sar_base + CPU0_WAKEUP_NS_PA_ADDR_OFFSET;
+	pm_info->l2x0_sar_addr = sar_base + L2X0_SAVE_OFFSET0;
+	pm_info->pwrdm = pwrdm_lookup("cpu0_pwrdm");
+	if (!pm_info->pwrdm) {
+		pr_err("Lookup failed for CPU0 pwrdm\n");
+		return -ENODEV;
+	}
+
+	/* Clear CPU previous power domain state */
+	pwrdm_clear_all_prev_pwrst(pm_info->pwrdm);
+	cpu_clear_prev_logic_pwrst(0);
+
+	/* Initialise CPU0 power domain state to ON */
+	pwrdm_set_next_pwrst(pm_info->pwrdm, PWRDM_POWER_ON);
+
+	pm_info = &per_cpu(omap4_pm_info, 0x1);
+	pm_info->scu_sar_addr = sar_base + SCU_OFFSET1;
+	pm_info->wkup_sar_addr = sar_base + CPU1_WAKEUP_NS_PA_ADDR_OFFSET;
+	pm_info->l2x0_sar_addr = sar_base + L2X0_SAVE_OFFSET1;
+	pm_info->pwrdm = pwrdm_lookup("cpu1_pwrdm");
+	if (!pm_info->pwrdm) {
+		pr_err("Lookup failed for CPU1 pwrdm\n");
+		return -ENODEV;
+	}
+
+	/* Clear CPU previous power domain state */
+	pwrdm_clear_all_prev_pwrst(pm_info->pwrdm);
+	cpu_clear_prev_logic_pwrst(1);
+
+	/* Initialise CPU1 power domain state to ON */
+	pwrdm_set_next_pwrst(pm_info->pwrdm, PWRDM_POWER_ON);
+
+	mpuss_pd = pwrdm_lookup("mpu_pwrdm");
+	if (!mpuss_pd) {
+		pr_err("Failed to lookup MPUSS power domain\n");
+		return -ENODEV;
+	}
+	pwrdm_clear_all_prev_pwrst(mpuss_pd);
+	mpuss_clear_prev_logic_pwrst();
+
+	/* Save device type on scratchpad for low level code to use */
+	if (omap_type() != OMAP2_DEVICE_TYPE_GP)
+		__raw_writel(1, sar_base + OMAP_TYPE_OFFSET);
+	else
+		__raw_writel(0, sar_base + OMAP_TYPE_OFFSET);
+
+	save_l2x0_context();
+
+	return 0;
+}
+
+#endif
diff --git a/arch/arm/mach-omap2/omap-secure.c b/arch/arm/mach-omap2/omap-secure.c
new file mode 100644
index 000000000000..69f3c72d959b
--- /dev/null
+++ b/arch/arm/mach-omap2/omap-secure.c
@@ -0,0 +1,81 @@
+/*
+ * OMAP Secure API infrastructure.
+ *
+ * Copyright (C) 2011 Texas Instruments, Inc.
+ *	Santosh Shilimkar <santosh.shilimkar@ti.com>
+ *
+ *
+ * This program is free software,you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/memblock.h>
+
+#include <asm/cacheflush.h>
+
+#include <mach/omap-secure.h>
+
+static phys_addr_t omap_secure_memblock_base;
+
+/**
+ * omap_sec_dispatcher: Routine to dispatch low power secure
+ * service routines
+ * @idx: The HAL API index
+ * @flag: The flag indicating criticality of operation
+ * @nargs: Number of valid arguments out of four.
+ * @arg1, arg2, arg3 args4: Parameters passed to secure API
+ *
+ * Return the non-zero error value on failure.
+ */
+u32 omap_secure_dispatcher(u32 idx, u32 flag, u32 nargs, u32 arg1, u32 arg2,
+							 u32 arg3, u32 arg4)
+{
+	u32 ret;
+	u32 param[5];
+
+	param[0] = nargs;
+	param[1] = arg1;
+	param[2] = arg2;
+	param[3] = arg3;
+	param[4] = arg4;
+
+	/*
+	 * Secure API needs physical address
+	 * pointer for the parameters
+	 */
+	flush_cache_all();
+	outer_clean_range(__pa(param), __pa(param + 5));
+	ret = omap_smc2(idx, flag, __pa(param));
+
+	return ret;
+}
+
+/* Allocate the memory to save secure ram */
+int __init omap_secure_ram_reserve_memblock(void)
+{
+	phys_addr_t paddr;
+	u32 size = OMAP_SECURE_RAM_STORAGE;
+
+	size = ALIGN(size, SZ_1M);
+	paddr = memblock_alloc(size, SZ_1M);
+	if (!paddr) {
+		pr_err("%s: failed to reserve %x bytes\n",
+				__func__, size);
+		return -ENOMEM;
+	}
+	memblock_free(paddr, size);
+	memblock_remove(paddr, size);
+
+	omap_secure_memblock_base = paddr;
+
+	return 0;
+}
+
+phys_addr_t omap_secure_ram_mempool_base(void)
+{
+	return omap_secure_memblock_base;
+}
diff --git a/arch/arm/mach-omap2/omap44xx-smc.S b/arch/arm/mach-omap2/omap-smc.S
index e69d37d95204..f6441c13cd8c 100644
--- a/arch/arm/mach-omap2/omap44xx-smc.S
+++ b/arch/arm/mach-omap2/omap-smc.S
@@ -31,6 +31,29 @@ ENTRY(omap_smc1)
 	ldmfd   sp!, {r2-r12, pc}
 ENDPROC(omap_smc1)
 
+/**
+ * u32 omap_smc2(u32 id, u32 falg, u32 pargs)
+ * Low level common routine for secure HAL and PPA APIs.
+ * @id: Application ID of HAL APIs
+ * @flag: Flag to indicate the criticality of operation
+ * @pargs: Physical address of parameter list starting
+ *	    with number of parametrs
+ */
+ENTRY(omap_smc2)
+	stmfd   sp!, {r4-r12, lr}
+	mov	r3, r2
+	mov	r2, r1
+	mov	r1, #0x0	@ Process ID
+	mov	r6, #0xff
+	mov	r12, #0x00	@ Secure Service ID
+	mov	r7, #0
+	mcr	p15, 0, r7, c7, c5, 6
+	dsb
+	dmb
+	smc	#0
+	ldmfd   sp!, {r4-r12, pc}
+ENDPROC(omap_smc2)
+
 ENTRY(omap_modify_auxcoreboot0)
 	stmfd   sp!, {r1-r12, lr}
 	ldr	r12, =0x104
diff --git a/arch/arm/mach-omap2/omap-smp.c b/arch/arm/mach-omap2/omap-smp.c
index e99bc6cd4714..c1bf3ef0ba02 100644
--- a/arch/arm/mach-omap2/omap-smp.c
+++ b/arch/arm/mach-omap2/omap-smp.c
@@ -24,17 +24,37 @@
 #include <asm/hardware/gic.h>
 #include <asm/smp_scu.h>
 #include <mach/hardware.h>
+#include <mach/omap-secure.h>
 
 #include "common.h"
 
+#include "clockdomain.h"
+
 /* SCU base address */
 static void __iomem *scu_base;
 
 static DEFINE_SPINLOCK(boot_lock);
 
+void __iomem *omap4_get_scu_base(void)
+{
+	return scu_base;
+}
+
 void __cpuinit platform_secondary_init(unsigned int cpu)
 {
 	/*
+	 * Configure ACTRL and enable NS SMP bit access on CPU1 on HS device.
+	 * OMAP44XX EMU/HS devices - CPU0 SMP bit access is enabled in PPA
+	 * init and for CPU1, a secure PPA API provided. CPU0 must be ON
+	 * while executing NS_SMP API on CPU1 and PPA version must be 1.4.0+.
+	 * OMAP443X GP devices- SMP bit isn't accessible.
+	 * OMAP446X GP devices - SMP bit access is enabled on both CPUs.
+	 */
+	if (cpu_is_omap443x() && (omap_type() != OMAP2_DEVICE_TYPE_GP))
+		omap_secure_dispatcher(OMAP4_PPA_CPU_ACTRL_SMP_INDEX,
+							4, 0, 0, 0, 0, 0);
+
+	/*
 	 * If any interrupts are already enabled for the primary
 	 * core (e.g. timer irq), then they will not have been enabled
 	 * for us: do so
@@ -50,6 +70,8 @@ void __cpuinit platform_secondary_init(unsigned int cpu)
 
 int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle)
 {
+	static struct clockdomain *cpu1_clkdm;
+	static bool booted;
 	/*
 	 * Set synchronisation state between this boot processor
 	 * and the secondary one
@@ -65,6 +87,29 @@ int __cpuinit boot_secondary(unsigned int cpu, struct task_struct *idle)
 	omap_modify_auxcoreboot0(0x200, 0xfffffdff);
 	flush_cache_all();
 	smp_wmb();
+
+	if (!cpu1_clkdm)
+		cpu1_clkdm = clkdm_lookup("mpu1_clkdm");
+
+	/*
+	 * The SGI(Software Generated Interrupts) are not wakeup capable
+	 * from low power states. This is known limitation on OMAP4 and
+	 * needs to be worked around by using software forced clockdomain
+	 * wake-up. To wakeup CPU1, CPU0 forces the CPU1 clockdomain to
+	 * software force wakeup. The clockdomain is then put back to
+	 * hardware supervised mode.
+	 * More details can be found in OMAP4430 TRM - Version J
+	 * Section :
+	 *	4.3.4.2 Power States of CPU0 and CPU1
+	 */
+	if (booted) {
+		clkdm_wakeup(cpu1_clkdm);
+		clkdm_allow_idle(cpu1_clkdm);
+	} else {
+		dsb_sev();
+		booted = true;
+	}
+
 	gic_raise_softirq(cpumask_of(cpu), 1);
 
 	/*
diff --git a/arch/arm/mach-omap2/omap-wakeupgen.c b/arch/arm/mach-omap2/omap-wakeupgen.c
new file mode 100644
index 000000000000..d3d8971d7f30
--- /dev/null
+++ b/arch/arm/mach-omap2/omap-wakeupgen.c
@@ -0,0 +1,389 @@
+/*
+ * OMAP WakeupGen Source file
+ *
+ * OMAP WakeupGen is the interrupt controller extension used along
+ * with ARM GIC to wake the CPU out from low power states on
+ * external interrupts. It is responsible for generating wakeup
+ * event from the incoming interrupts and enable bits. It is
+ * implemented in MPU always ON power domain. During normal operation,
+ * WakeupGen delivers external interrupts directly to the GIC.
+ *
+ * Copyright (C) 2011 Texas Instruments, Inc.
+ *	Santosh Shilimkar <santosh.shilimkar@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/platform_device.h>
+#include <linux/cpu.h>
+#include <linux/notifier.h>
+#include <linux/cpu_pm.h>
+
+#include <asm/hardware/gic.h>
+
+#include <mach/omap-wakeupgen.h>
+#include <mach/omap-secure.h>
+
+#include "omap4-sar-layout.h"
+#include "common.h"
+
+#define NR_REG_BANKS		4
+#define MAX_IRQS		128
+#define WKG_MASK_ALL		0x00000000
+#define WKG_UNMASK_ALL		0xffffffff
+#define CPU_ENA_OFFSET		0x400
+#define CPU0_ID			0x0
+#define CPU1_ID			0x1
+
+static void __iomem *wakeupgen_base;
+static void __iomem *sar_base;
+static DEFINE_PER_CPU(u32 [NR_REG_BANKS], irqmasks);
+static DEFINE_SPINLOCK(wakeupgen_lock);
+static unsigned int irq_target_cpu[NR_IRQS];
+
+/*
+ * Static helper functions.
+ */
+static inline u32 wakeupgen_readl(u8 idx, u32 cpu)
+{
+	return __raw_readl(wakeupgen_base + OMAP_WKG_ENB_A_0 +
+				(cpu * CPU_ENA_OFFSET) + (idx * 4));
+}
+
+static inline void wakeupgen_writel(u32 val, u8 idx, u32 cpu)
+{
+	__raw_writel(val, wakeupgen_base + OMAP_WKG_ENB_A_0 +
+				(cpu * CPU_ENA_OFFSET) + (idx * 4));
+}
+
+static inline void sar_writel(u32 val, u32 offset, u8 idx)
+{
+	__raw_writel(val, sar_base + offset + (idx * 4));
+}
+
+static void _wakeupgen_set_all(unsigned int cpu, unsigned int reg)
+{
+	u8 i;
+
+	for (i = 0; i < NR_REG_BANKS; i++)
+		wakeupgen_writel(reg, i, cpu);
+}
+
+static inline int _wakeupgen_get_irq_info(u32 irq, u32 *bit_posn, u8 *reg_index)
+{
+	unsigned int spi_irq;
+
+	/*
+	 * PPIs and SGIs are not supported.
+	 */
+	if (irq < OMAP44XX_IRQ_GIC_START)
+		return -EINVAL;
+
+	/*
+	 * Subtract the GIC offset.
+	 */
+	spi_irq = irq - OMAP44XX_IRQ_GIC_START;
+	if (spi_irq > MAX_IRQS) {
+		pr_err("omap wakeupGen: Invalid IRQ%d\n", irq);
+		return -EINVAL;
+	}
+
+	/*
+	 * Each WakeupGen register controls 32 interrupt.
+	 * i.e. 1 bit per SPI IRQ
+	 */
+	*reg_index = spi_irq >> 5;
+	*bit_posn = spi_irq %= 32;
+
+	return 0;
+}
+
+static void _wakeupgen_clear(unsigned int irq, unsigned int cpu)
+{
+	u32 val, bit_number;
+	u8 i;
+
+	if (_wakeupgen_get_irq_info(irq, &bit_number, &i))
+		return;
+
+	val = wakeupgen_readl(i, cpu);
+	val &= ~BIT(bit_number);
+	wakeupgen_writel(val, i, cpu);
+}
+
+static void _wakeupgen_set(unsigned int irq, unsigned int cpu)
+{
+	u32 val, bit_number;
+	u8 i;
+
+	if (_wakeupgen_get_irq_info(irq, &bit_number, &i))
+		return;
+
+	val = wakeupgen_readl(i, cpu);
+	val |= BIT(bit_number);
+	wakeupgen_writel(val, i, cpu);
+}
+
+static void _wakeupgen_save_masks(unsigned int cpu)
+{
+	u8 i;
+
+	for (i = 0; i < NR_REG_BANKS; i++)
+		per_cpu(irqmasks, cpu)[i] = wakeupgen_readl(i, cpu);
+}
+
+static void _wakeupgen_restore_masks(unsigned int cpu)
+{
+	u8 i;
+
+	for (i = 0; i < NR_REG_BANKS; i++)
+		wakeupgen_writel(per_cpu(irqmasks, cpu)[i], i, cpu);
+}
+
+/*
+ * Architecture specific Mask extension
+ */
+static void wakeupgen_mask(struct irq_data *d)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&wakeupgen_lock, flags);
+	_wakeupgen_clear(d->irq, irq_target_cpu[d->irq]);
+	spin_unlock_irqrestore(&wakeupgen_lock, flags);
+}
+
+/*
+ * Architecture specific Unmask extension
+ */
+static void wakeupgen_unmask(struct irq_data *d)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&wakeupgen_lock, flags);
+	_wakeupgen_set(d->irq, irq_target_cpu[d->irq]);
+	spin_unlock_irqrestore(&wakeupgen_lock, flags);
+}
+
+/*
+ * Mask or unmask all interrupts on given CPU.
+ *	0 = Mask all interrupts on the 'cpu'
+ *	1 = Unmask all interrupts on the 'cpu'
+ * Ensure that the initial mask is maintained. This is faster than
+ * iterating through GIC registers to arrive at the correct masks.
+ */
+static void wakeupgen_irqmask_all(unsigned int cpu, unsigned int set)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&wakeupgen_lock, flags);
+	if (set) {
+		_wakeupgen_save_masks(cpu);
+		_wakeupgen_set_all(cpu, WKG_MASK_ALL);
+	} else {
+		_wakeupgen_set_all(cpu, WKG_UNMASK_ALL);
+		_wakeupgen_restore_masks(cpu);
+	}
+	spin_unlock_irqrestore(&wakeupgen_lock, flags);
+}
+
+#ifdef CONFIG_CPU_PM
+/*
+ * Save WakeupGen interrupt context in SAR BANK3. Restore is done by
+ * ROM code. WakeupGen IP is integrated along with GIC to manage the
+ * interrupt wakeups from CPU low power states. It manages
+ * masking/unmasking of Shared peripheral interrupts(SPI). So the
+ * interrupt enable/disable control should be in sync and consistent
+ * at WakeupGen and GIC so that interrupts are not lost.
+ */
+static void irq_save_context(void)
+{
+	u32 i, val;
+
+	if (omap_rev() == OMAP4430_REV_ES1_0)
+		return;
+
+	if (!sar_base)
+		sar_base = omap4_get_sar_ram_base();
+
+	for (i = 0; i < NR_REG_BANKS; i++) {
+		/* Save the CPUx interrupt mask for IRQ 0 to 127 */
+		val = wakeupgen_readl(i, 0);
+		sar_writel(val, WAKEUPGENENB_OFFSET_CPU0, i);
+		val = wakeupgen_readl(i, 1);
+		sar_writel(val, WAKEUPGENENB_OFFSET_CPU1, i);
+
+		/*
+		 * Disable the secure interrupts for CPUx. The restore
+		 * code blindly restores secure and non-secure interrupt
+		 * masks from SAR RAM. Secure interrupts are not suppose
+		 * to be enabled from HLOS. So overwrite the SAR location
+		 * so that the secure interrupt remains disabled.
+		 */
+		sar_writel(0x0, WAKEUPGENENB_SECURE_OFFSET_CPU0, i);
+		sar_writel(0x0, WAKEUPGENENB_SECURE_OFFSET_CPU1, i);
+	}
+
+	/* Save AuxBoot* registers */
+	val = __raw_readl(wakeupgen_base + OMAP_AUX_CORE_BOOT_0);
+	__raw_writel(val, sar_base + AUXCOREBOOT0_OFFSET);
+	val = __raw_readl(wakeupgen_base + OMAP_AUX_CORE_BOOT_0);
+	__raw_writel(val, sar_base + AUXCOREBOOT1_OFFSET);
+
+	/* Save SyncReq generation logic */
+	val = __raw_readl(wakeupgen_base + OMAP_AUX_CORE_BOOT_0);
+	__raw_writel(val, sar_base + AUXCOREBOOT0_OFFSET);
+	val = __raw_readl(wakeupgen_base + OMAP_AUX_CORE_BOOT_0);
+	__raw_writel(val, sar_base + AUXCOREBOOT1_OFFSET);
+
+	/* Save SyncReq generation logic */
+	val = __raw_readl(wakeupgen_base + OMAP_PTMSYNCREQ_MASK);
+	__raw_writel(val, sar_base + PTMSYNCREQ_MASK_OFFSET);
+	val = __raw_readl(wakeupgen_base + OMAP_PTMSYNCREQ_EN);
+	__raw_writel(val, sar_base + PTMSYNCREQ_EN_OFFSET);
+
+	/* Set the Backup Bit Mask status */
+	val = __raw_readl(sar_base + SAR_BACKUP_STATUS_OFFSET);
+	val |= SAR_BACKUP_STATUS_WAKEUPGEN;
+	__raw_writel(val, sar_base + SAR_BACKUP_STATUS_OFFSET);
+}
+
+/*
+ * Clear WakeupGen SAR backup status.
+ */
+void irq_sar_clear(void)
+{
+	u32 val;
+	val = __raw_readl(sar_base + SAR_BACKUP_STATUS_OFFSET);
+	val &= ~SAR_BACKUP_STATUS_WAKEUPGEN;
+	__raw_writel(val, sar_base + SAR_BACKUP_STATUS_OFFSET);
+}
+
+/*
+ * Save GIC and Wakeupgen interrupt context using secure API
+ * for HS/EMU devices.
+ */
+static void irq_save_secure_context(void)
+{
+	u32 ret;
+	ret = omap_secure_dispatcher(OMAP4_HAL_SAVEGIC_INDEX,
+				FLAG_START_CRITICAL,
+				0, 0, 0, 0, 0);
+	if (ret != API_HAL_RET_VALUE_OK)
+		pr_err("GIC and Wakeupgen context save failed\n");
+}
+#endif
+
+#ifdef CONFIG_HOTPLUG_CPU
+static int __cpuinit irq_cpu_hotplug_notify(struct notifier_block *self,
+					 unsigned long action, void *hcpu)
+{
+	unsigned int cpu = (unsigned int)hcpu;
+
+	switch (action) {
+	case CPU_ONLINE:
+		wakeupgen_irqmask_all(cpu, 0);
+		break;
+	case CPU_DEAD:
+		wakeupgen_irqmask_all(cpu, 1);
+		break;
+	}
+	return NOTIFY_OK;
+}
+
+static struct notifier_block __refdata irq_hotplug_notifier = {
+	.notifier_call = irq_cpu_hotplug_notify,
+};
+
+static void __init irq_hotplug_init(void)
+{
+	register_hotcpu_notifier(&irq_hotplug_notifier);
+}
+#else
+static void __init irq_hotplug_init(void)
+{}
+#endif
+
+#ifdef CONFIG_CPU_PM
+static int irq_notifier(struct notifier_block *self, unsigned long cmd,	void *v)
+{
+	switch (cmd) {
+	case CPU_CLUSTER_PM_ENTER:
+		if (omap_type() == OMAP2_DEVICE_TYPE_GP)
+			irq_save_context();
+		else
+			irq_save_secure_context();
+		break;
+	case CPU_CLUSTER_PM_EXIT:
+		if (omap_type() == OMAP2_DEVICE_TYPE_GP)
+			irq_sar_clear();
+		break;
+	}
+	return NOTIFY_OK;
+}
+
+static struct notifier_block irq_notifier_block = {
+	.notifier_call = irq_notifier,
+};
+
+static void __init irq_pm_init(void)
+{
+	cpu_pm_register_notifier(&irq_notifier_block);
+}
+#else
+static void __init irq_pm_init(void)
+{}
+#endif
+
+/*
+ * Initialise the wakeupgen module.
+ */
+int __init omap_wakeupgen_init(void)
+{
+	int i;
+	unsigned int boot_cpu = smp_processor_id();
+
+	/* Not supported on OMAP4 ES1.0 silicon */
+	if (omap_rev() == OMAP4430_REV_ES1_0) {
+		WARN(1, "WakeupGen: Not supported on OMAP4430 ES1.0\n");
+		return -EPERM;
+	}
+
+	/* Static mapping, never released */
+	wakeupgen_base = ioremap(OMAP44XX_WKUPGEN_BASE, SZ_4K);
+	if (WARN_ON(!wakeupgen_base))
+		return -ENOMEM;
+
+	/* Clear all IRQ bitmasks at wakeupGen level */
+	for (i = 0; i < NR_REG_BANKS; i++) {
+		wakeupgen_writel(0, i, CPU0_ID);
+		wakeupgen_writel(0, i, CPU1_ID);
+	}
+
+	/*
+	 * Override GIC architecture specific functions to add
+	 * OMAP WakeupGen interrupt controller along with GIC
+	 */
+	gic_arch_extn.irq_mask = wakeupgen_mask;
+	gic_arch_extn.irq_unmask = wakeupgen_unmask;
+	gic_arch_extn.flags = IRQCHIP_MASK_ON_SUSPEND | IRQCHIP_SKIP_SET_WAKE;
+
+	/*
+	 * FIXME: Add support to set_smp_affinity() once the core
+	 * GIC code has necessary hooks in place.
+	 */
+
+	/* Associate all the IRQs to boot CPU like GIC init does. */
+	for (i = 0; i < NR_IRQS; i++)
+		irq_target_cpu[i] = boot_cpu;
+
+	irq_hotplug_init();
+	irq_pm_init();
+
+	return 0;
+}
diff --git a/arch/arm/mach-omap2/omap4-common.c b/arch/arm/mach-omap2/omap4-common.c
index beecfdd56ea3..bc16c818c6b7 100644
--- a/arch/arm/mach-omap2/omap4-common.c
+++ b/arch/arm/mach-omap2/omap4-common.c
@@ -15,18 +15,73 @@
 #include <linux/init.h>
 #include <linux/io.h>
 #include <linux/platform_device.h>
+#include <linux/memblock.h>
 
 #include <asm/hardware/gic.h>
 #include <asm/hardware/cache-l2x0.h>
+#include <asm/mach/map.h>
 
 #include <plat/irqs.h>
+#include <plat/sram.h>
 
 #include <mach/hardware.h>
+#include <mach/omap-wakeupgen.h>
 
 #include "common.h"
+#include "omap4-sar-layout.h"
 
 #ifdef CONFIG_CACHE_L2X0
-void __iomem *l2cache_base;
+static void __iomem *l2cache_base;
+#endif
+
+static void __iomem *sar_ram_base;
+
+#ifdef CONFIG_OMAP4_ERRATA_I688
+/* Used to implement memory barrier on DRAM path */
+#define OMAP4_DRAM_BARRIER_VA			0xfe600000
+
+void __iomem *dram_sync, *sram_sync;
+
+void omap_bus_sync(void)
+{
+	if (dram_sync && sram_sync) {
+		writel_relaxed(readl_relaxed(dram_sync), dram_sync);
+		writel_relaxed(readl_relaxed(sram_sync), sram_sync);
+		isb();
+	}
+}
+
+static int __init omap_barriers_init(void)
+{
+	struct map_desc dram_io_desc[1];
+	phys_addr_t paddr;
+	u32 size;
+
+	if (!cpu_is_omap44xx())
+		return -ENODEV;
+
+	size = ALIGN(PAGE_SIZE, SZ_1M);
+	paddr = memblock_alloc(size, SZ_1M);
+	if (!paddr) {
+		pr_err("%s: failed to reserve 4 Kbytes\n", __func__);
+		return -ENOMEM;
+	}
+	memblock_free(paddr, size);
+	memblock_remove(paddr, size);
+	dram_io_desc[0].virtual = OMAP4_DRAM_BARRIER_VA;
+	dram_io_desc[0].pfn = __phys_to_pfn(paddr);
+	dram_io_desc[0].length = size;
+	dram_io_desc[0].type = MT_MEMORY_SO;
+	iotable_init(dram_io_desc, ARRAY_SIZE(dram_io_desc));
+	dram_sync = (void __iomem *) dram_io_desc[0].virtual;
+	sram_sync = (void __iomem *) OMAP4_SRAM_VA;
+
+	pr_info("OMAP4: Map 0x%08llx to 0x%08lx for dram barrier\n",
+		(long long) paddr, dram_io_desc[0].virtual);
+
+	return 0;
+}
+core_initcall(omap_barriers_init);
 #endif
 
 void __init gic_init_irq(void)
@@ -42,11 +97,18 @@ void __init gic_init_irq(void)
 	omap_irq_base = ioremap(OMAP44XX_GIC_CPU_BASE, SZ_512);
 	BUG_ON(!omap_irq_base);
 
+	omap_wakeupgen_init();
+
 	gic_init(0, 29, gic_dist_base_addr, omap_irq_base);
 }
 
 #ifdef CONFIG_CACHE_L2X0
 
+void __iomem *omap4_get_l2cache_base(void)
+{
+	return l2cache_base;
+}
+
 static void omap4_l2x0_disable(void)
 {
 	/* Disable PL310 L2 Cache controller */
@@ -72,7 +134,8 @@ static int __init omap_l2_cache_init(void)
 
 	/* Static mapping, never released */
 	l2cache_base = ioremap(OMAP44XX_L2CACHE_BASE, SZ_4K);
-	BUG_ON(!l2cache_base);
+	if (WARN_ON(!l2cache_base))
+		return -ENOMEM;
 
 	/*
 	 * 16-way associativity, parity disabled
@@ -112,3 +175,30 @@ static int __init omap_l2_cache_init(void)
 }
 early_initcall(omap_l2_cache_init);
 #endif
+
+void __iomem *omap4_get_sar_ram_base(void)
+{
+	return sar_ram_base;
+}
+
+/*
+ * SAR RAM used to save and restore the HW
+ * context in low power modes
+ */
+static int __init omap4_sar_ram_init(void)
+{
+	/*
+	 * To avoid code running on other OMAPs in
+	 * multi-omap builds
+	 */
+	if (!cpu_is_omap44xx())
+		return -ENOMEM;
+
+	/* Static mapping, never released */
+	sar_ram_base = ioremap(OMAP44XX_SAR_RAM_BASE, SZ_16K);
+	if (WARN_ON(!sar_ram_base))
+		return -ENOMEM;
+
+	return 0;
+}
+early_initcall(omap4_sar_ram_init);
diff --git a/arch/arm/mach-omap2/omap4-sar-layout.h b/arch/arm/mach-omap2/omap4-sar-layout.h
new file mode 100644
index 000000000000..fe5b545ad443
--- /dev/null
+++ b/arch/arm/mach-omap2/omap4-sar-layout.h
@@ -0,0 +1,50 @@
+/*
+ * omap4-sar-layout.h: OMAP4 SAR RAM layout header file
+ *
+ * Copyright (C) 2011 Texas Instruments, Inc.
+ *	Santosh Shilimkar <santosh.shilimkar@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef OMAP_ARCH_OMAP4_SAR_LAYOUT_H
+#define OMAP_ARCH_OMAP4_SAR_LAYOUT_H
+
+/*
+ * SAR BANK offsets from base address OMAP44XX_SAR_RAM_BASE
+ */
+#define SAR_BANK1_OFFSET		0x0000
+#define SAR_BANK2_OFFSET		0x1000
+#define SAR_BANK3_OFFSET		0x2000
+#define SAR_BANK4_OFFSET		0x3000
+
+/* Scratch pad memory offsets from SAR_BANK1 */
+#define SCU_OFFSET0				0xd00
+#define SCU_OFFSET1				0xd04
+#define OMAP_TYPE_OFFSET			0xd10
+#define L2X0_SAVE_OFFSET0			0xd14
+#define L2X0_SAVE_OFFSET1			0xd18
+#define L2X0_AUXCTRL_OFFSET			0xd1c
+#define L2X0_PREFETCH_CTRL_OFFSET		0xd20
+
+/* CPUx Wakeup Non-Secure Physical Address offsets in SAR_BANK3 */
+#define CPU0_WAKEUP_NS_PA_ADDR_OFFSET		0xa04
+#define CPU1_WAKEUP_NS_PA_ADDR_OFFSET		0xa08
+
+#define SAR_BACKUP_STATUS_OFFSET		(SAR_BANK3_OFFSET + 0x500)
+#define SAR_SECURE_RAM_SIZE_OFFSET		(SAR_BANK3_OFFSET + 0x504)
+#define SAR_SECRAM_SAVED_AT_OFFSET		(SAR_BANK3_OFFSET + 0x508)
+
+/* WakeUpGen save restore offset from OMAP44XX_SAR_RAM_BASE */
+#define WAKEUPGENENB_OFFSET_CPU0		(SAR_BANK3_OFFSET + 0x684)
+#define WAKEUPGENENB_SECURE_OFFSET_CPU0		(SAR_BANK3_OFFSET + 0x694)
+#define WAKEUPGENENB_OFFSET_CPU1		(SAR_BANK3_OFFSET + 0x6a4)
+#define WAKEUPGENENB_SECURE_OFFSET_CPU1		(SAR_BANK3_OFFSET + 0x6b4)
+#define AUXCOREBOOT0_OFFSET			(SAR_BANK3_OFFSET + 0x6c4)
+#define AUXCOREBOOT1_OFFSET			(SAR_BANK3_OFFSET + 0x6c8)
+#define PTMSYNCREQ_MASK_OFFSET			(SAR_BANK3_OFFSET + 0x6cc)
+#define PTMSYNCREQ_EN_OFFSET			(SAR_BANK3_OFFSET + 0x6d0)
+#define SAR_BACKUP_STATUS_WAKEUPGEN		0x10
+
+#endif
diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index 529142aff766..5192cabb40ed 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -136,6 +136,7 @@
 #include <linux/list.h>
 #include <linux/mutex.h>
 #include <linux/spinlock.h>
+#include <linux/slab.h>
 
 #include "common.h"
 #include <plat/cpu.h>
@@ -381,6 +382,51 @@ static int _set_module_autoidle(struct omap_hwmod *oh, u8 autoidle,
 }
 
 /**
+ * _set_idle_ioring_wakeup - enable/disable IO pad wakeup on hwmod idle for mux
+ * @oh: struct omap_hwmod *
+ * @set_wake: bool value indicating to set (true) or clear (false) wakeup enable
+ *
+ * Set or clear the I/O pad wakeup flag in the mux entries for the
+ * hwmod @oh.  This function changes the @oh->mux->pads_dynamic array
+ * in memory.  If the hwmod is currently idled, and the new idle
+ * values don't match the previous ones, this function will also
+ * update the SCM PADCTRL registers.  Otherwise, if the hwmod is not
+ * currently idled, this function won't touch the hardware: the new
+ * mux settings are written to the SCM PADCTRL registers when the
+ * hwmod is idled.  No return value.
+ */
+static void _set_idle_ioring_wakeup(struct omap_hwmod *oh, bool set_wake)
+{
+	struct omap_device_pad *pad;
+	bool change = false;
+	u16 prev_idle;
+	int j;
+
+	if (!oh->mux || !oh->mux->enabled)
+		return;
+
+	for (j = 0; j < oh->mux->nr_pads_dynamic; j++) {
+		pad = oh->mux->pads_dynamic[j];
+
+		if (!(pad->flags & OMAP_DEVICE_PAD_WAKEUP))
+			continue;
+
+		prev_idle = pad->idle;
+
+		if (set_wake)
+			pad->idle |= OMAP_WAKEUP_EN;
+		else
+			pad->idle &= ~OMAP_WAKEUP_EN;
+
+		if (prev_idle != pad->idle)
+			change = true;
+	}
+
+	if (change && oh->_state == _HWMOD_STATE_IDLE)
+		omap_hwmod_mux(oh->mux, _HWMOD_STATE_IDLE);
+}
+
+/**
  * _enable_wakeup: set OCP_SYSCONFIG.ENAWAKEUP bit in the hardware
  * @oh: struct omap_hwmod *
  *
@@ -706,27 +752,65 @@ static void _enable_module(struct omap_hwmod *oh)
 }
 
 /**
- * _disable_module - enable CLKCTRL modulemode on OMAP4
+ * _omap4_wait_target_disable - wait for a module to be disabled on OMAP4
+ * @oh: struct omap_hwmod *
+ *
+ * Wait for a module @oh to enter slave idle.  Returns 0 if the module
+ * does not have an IDLEST bit or if the module successfully enters
+ * slave idle; otherwise, pass along the return value of the
+ * appropriate *_cm*_wait_module_idle() function.
+ */
+static int _omap4_wait_target_disable(struct omap_hwmod *oh)
+{
+	if (!cpu_is_omap44xx())
+		return 0;
+
+	if (!oh)
+		return -EINVAL;
+
+	if (oh->_int_flags & _HWMOD_NO_MPU_PORT)
+		return 0;
+
+	if (oh->flags & HWMOD_NO_IDLEST)
+		return 0;
+
+	return omap4_cminst_wait_module_idle(oh->clkdm->prcm_partition,
+					     oh->clkdm->cm_inst,
+					     oh->clkdm->clkdm_offs,
+					     oh->prcm.omap4.clkctrl_offs);
+}
+
+/**
+ * _omap4_disable_module - enable CLKCTRL modulemode on OMAP4
  * @oh: struct omap_hwmod *
  *
  * Disable the PRCM module mode related to the hwmod @oh.
- * No return value.
+ * Return EINVAL if the modulemode is not supported and 0 in case of success.
  */
-static void _disable_module(struct omap_hwmod *oh)
+static int _omap4_disable_module(struct omap_hwmod *oh)
 {
+	int v;
+
 	/* The module mode does not exist prior OMAP4 */
-	if (cpu_is_omap24xx() || cpu_is_omap34xx())
-		return;
+	if (!cpu_is_omap44xx())
+		return -EINVAL;
 
 	if (!oh->clkdm || !oh->prcm.omap4.modulemode)
-		return;
+		return -EINVAL;
 
-	pr_debug("omap_hwmod: %s: _disable_module\n", oh->name);
+	pr_debug("omap_hwmod: %s: %s\n", oh->name, __func__);
 
 	omap4_cminst_module_disable(oh->clkdm->prcm_partition,
 				    oh->clkdm->cm_inst,
 				    oh->clkdm->clkdm_offs,
 				    oh->prcm.omap4.clkctrl_offs);
+
+	v = _omap4_wait_target_disable(oh);
+	if (v)
+		pr_warn("omap_hwmod: %s: _wait_target_disable failed\n",
+			oh->name);
+
+	return 0;
 }
 
 /**
@@ -1153,36 +1237,6 @@ static int _wait_target_ready(struct omap_hwmod *oh)
 }
 
 /**
- * _wait_target_disable - wait for a module to be disabled
- * @oh: struct omap_hwmod *
- *
- * Wait for a module @oh to enter slave idle.  Returns 0 if the module
- * does not have an IDLEST bit or if the module successfully enters
- * slave idle; otherwise, pass along the return value of the
- * appropriate *_cm*_wait_module_idle() function.
- */
-static int _wait_target_disable(struct omap_hwmod *oh)
-{
-	/* TODO: For now just handle OMAP4+ */
-	if (cpu_is_omap24xx() || cpu_is_omap34xx())
-		return 0;
-
-	if (!oh)
-		return -EINVAL;
-
-	if (oh->_int_flags & _HWMOD_NO_MPU_PORT)
-		return 0;
-
-	if (oh->flags & HWMOD_NO_IDLEST)
-		return 0;
-
-	return omap4_cminst_wait_module_idle(oh->clkdm->prcm_partition,
-					     oh->clkdm->cm_inst,
-					     oh->clkdm->clkdm_offs,
-					     oh->prcm.omap4.clkctrl_offs);
-}
-
-/**
  * _lookup_hardreset - fill register bit info for this hwmod/reset line
  * @oh: struct omap_hwmod *
  * @name: name of the reset line in the context of this hwmod
@@ -1441,6 +1495,25 @@ static int _enable(struct omap_hwmod *oh)
 
 	pr_debug("omap_hwmod: %s: enabling\n", oh->name);
 
+	/*
+	 * hwmods with HWMOD_INIT_NO_IDLE flag set are left
+	 * in enabled state at init.
+	 * Now that someone is really trying to enable them,
+	 * just ensure that the hwmod mux is set.
+	 */
+	if (oh->_int_flags & _HWMOD_SKIP_ENABLE) {
+		/*
+		 * If the caller has mux data populated, do the mux'ing
+		 * which wouldn't have been done as part of the _enable()
+		 * done during setup.
+		 */
+		if (oh->mux)
+			omap_hwmod_mux(oh->mux, _HWMOD_STATE_ENABLED);
+
+		oh->_int_flags &= ~_HWMOD_SKIP_ENABLE;
+		return 0;
+	}
+
 	if (oh->_state != _HWMOD_STATE_INITIALIZED &&
 	    oh->_state != _HWMOD_STATE_IDLE &&
 	    oh->_state != _HWMOD_STATE_DISABLED) {
@@ -1524,8 +1597,6 @@ static int _enable(struct omap_hwmod *oh)
  */
 static int _idle(struct omap_hwmod *oh)
 {
-	int ret;
-
 	pr_debug("omap_hwmod: %s: idling\n", oh->name);
 
 	if (oh->_state != _HWMOD_STATE_ENABLED) {
@@ -1537,11 +1608,9 @@ static int _idle(struct omap_hwmod *oh)
 	if (oh->class->sysc)
 		_idle_sysc(oh);
 	_del_initiator_dep(oh, mpu_oh);
-	_disable_module(oh);
-	ret = _wait_target_disable(oh);
-	if (ret)
-		pr_warn("omap_hwmod: %s: _wait_target_disable failed\n",
-			oh->name);
+
+	_omap4_disable_module(oh);
+
 	/*
 	 * The module must be in idle mode before disabling any parents
 	 * clocks. Otherwise, the parent clock might be disabled before
@@ -1642,11 +1711,7 @@ static int _shutdown(struct omap_hwmod *oh)
 	if (oh->_state == _HWMOD_STATE_ENABLED) {
 		_del_initiator_dep(oh, mpu_oh);
 		/* XXX what about the other system initiators here? dma, dsp */
-		_disable_module(oh);
-		ret = _wait_target_disable(oh);
-		if (ret)
-			pr_warn("omap_hwmod: %s: _wait_target_disable failed\n",
-				oh->name);
+		_omap4_disable_module(oh);
 		_disable_clocks(oh);
 		if (oh->clkdm)
 			clkdm_hwmod_disable(oh->clkdm, oh);
@@ -1744,8 +1809,10 @@ static int _setup(struct omap_hwmod *oh, void *data)
 	 * it should be set by the core code as a runtime flag during startup
 	 */
 	if ((oh->flags & HWMOD_INIT_NO_IDLE) &&
-	    (postsetup_state == _HWMOD_STATE_IDLE))
+	    (postsetup_state == _HWMOD_STATE_IDLE)) {
+		oh->_int_flags |= _HWMOD_SKIP_ENABLE;
 		postsetup_state = _HWMOD_STATE_ENABLED;
+	}
 
 	if (postsetup_state == _HWMOD_STATE_IDLE)
 		_idle(oh);
@@ -2416,6 +2483,7 @@ int omap_hwmod_enable_wakeup(struct omap_hwmod *oh)
 	v = oh->_sysc_cache;
 	_enable_wakeup(oh, &v);
 	_write_sysconfig(v, oh);
+	_set_idle_ioring_wakeup(oh, true);
 	spin_unlock_irqrestore(&oh->_lock, flags);
 
 	return 0;
@@ -2446,6 +2514,7 @@ int omap_hwmod_disable_wakeup(struct omap_hwmod *oh)
 	v = oh->_sysc_cache;
 	_disable_wakeup(oh, &v);
 	_write_sysconfig(v, oh);
+	_set_idle_ioring_wakeup(oh, false);
 	spin_unlock_irqrestore(&oh->_lock, flags);
 
 	return 0;
@@ -2662,3 +2731,57 @@ int omap_hwmod_no_setup_reset(struct omap_hwmod *oh)
 
 	return 0;
 }
+
+/**
+ * omap_hwmod_pad_route_irq - route an I/O pad wakeup to a particular MPU IRQ
+ * @oh: struct omap_hwmod * containing hwmod mux entries
+ * @pad_idx: array index in oh->mux of the hwmod mux entry to route wakeup
+ * @irq_idx: the hwmod mpu_irqs array index of the IRQ to trigger on wakeup
+ *
+ * When an I/O pad wakeup arrives for the dynamic or wakeup hwmod mux
+ * entry number @pad_idx for the hwmod @oh, trigger the interrupt
+ * service routine for the hwmod's mpu_irqs array index @irq_idx.  If
+ * this function is not called for a given pad_idx, then the ISR
+ * associated with @oh's first MPU IRQ will be triggered when an I/O
+ * pad wakeup occurs on that pad.  Note that @pad_idx is the index of
+ * the _dynamic or wakeup_ entry: if there are other entries not
+ * marked with OMAP_DEVICE_PAD_WAKEUP or OMAP_DEVICE_PAD_REMUX, these
+ * entries are NOT COUNTED in the dynamic pad index.  This function
+ * must be called separately for each pad that requires its interrupt
+ * to be re-routed this way.  Returns -EINVAL if there is an argument
+ * problem or if @oh does not have hwmod mux entries or MPU IRQs;
+ * returns -ENOMEM if memory cannot be allocated; or 0 upon success.
+ *
+ * XXX This function interface is fragile.  Rather than using array
+ * indexes, which are subject to unpredictable change, it should be
+ * using hwmod IRQ names, and some other stable key for the hwmod mux
+ * pad records.
+ */
+int omap_hwmod_pad_route_irq(struct omap_hwmod *oh, int pad_idx, int irq_idx)
+{
+	int nr_irqs;
+
+	might_sleep();
+
+	if (!oh || !oh->mux || !oh->mpu_irqs || pad_idx < 0 ||
+	    pad_idx >= oh->mux->nr_pads_dynamic)
+		return -EINVAL;
+
+	/* Check the number of available mpu_irqs */
+	for (nr_irqs = 0; oh->mpu_irqs[nr_irqs].irq >= 0; nr_irqs++)
+		;
+
+	if (irq_idx >= nr_irqs)
+		return -EINVAL;
+
+	if (!oh->mux->irqs) {
+		/* XXX What frees this? */
+		oh->mux->irqs = kzalloc(sizeof(int) * oh->mux->nr_pads_dynamic,
+			GFP_KERNEL);
+		if (!oh->mux->irqs)
+			return -ENOMEM;
+	}
+	oh->mux->irqs[pad_idx] = irq_idx;
+
+	return 0;
+}
diff --git a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
index eef43e2e163e..5324e8d93bc0 100644
--- a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
@@ -84,6 +84,8 @@ static struct omap_hwmod omap3xxx_mcbsp4_hwmod;
 static struct omap_hwmod omap3xxx_mcbsp5_hwmod;
 static struct omap_hwmod omap3xxx_mcbsp2_sidetone_hwmod;
 static struct omap_hwmod omap3xxx_mcbsp3_sidetone_hwmod;
+static struct omap_hwmod omap3xxx_usb_host_hs_hwmod;
+static struct omap_hwmod omap3xxx_usb_tll_hs_hwmod;
 
 /* L3 -> L4_CORE interface */
 static struct omap_hwmod_ocp_if omap3xxx_l3_main__l4_core = {
@@ -164,6 +166,7 @@ static struct omap_hwmod omap3xxx_uart1_hwmod;
 static struct omap_hwmod omap3xxx_uart2_hwmod;
 static struct omap_hwmod omap3xxx_uart3_hwmod;
 static struct omap_hwmod omap3xxx_uart4_hwmod;
+static struct omap_hwmod am35xx_uart4_hwmod;
 static struct omap_hwmod omap3xxx_usbhsotg_hwmod;
 
 /* l3_core -> usbhsotg interface */
@@ -299,6 +302,23 @@ static struct omap_hwmod_ocp_if omap3_l4_per__uart4 = {
 	.user		= OCP_USER_MPU | OCP_USER_SDMA,
 };
 
+/* AM35xx: L4 CORE -> UART4 interface */
+static struct omap_hwmod_addr_space am35xx_uart4_addr_space[] = {
+	{
+		.pa_start       = OMAP3_UART4_AM35XX_BASE,
+		.pa_end         = OMAP3_UART4_AM35XX_BASE + SZ_1K - 1,
+		.flags          = ADDR_MAP_ON_INIT | ADDR_TYPE_RT,
+	},
+};
+
+static struct omap_hwmod_ocp_if am35xx_l4_core__uart4 = {
+	.master         = &omap3xxx_l4_core_hwmod,
+	.slave          = &am35xx_uart4_hwmod,
+	.clk            = "uart4_ick",
+	.addr           = am35xx_uart4_addr_space,
+	.user           = OCP_USER_MPU | OCP_USER_SDMA,
+};
+
 /* L4 CORE -> I2C1 interface */
 static struct omap_hwmod_ocp_if omap3_l4_core__i2c1 = {
 	.master		= &omap3xxx_l4_core_hwmod,
@@ -1162,6 +1182,7 @@ static struct omap_hwmod_class_sysconfig i2c_sysc = {
 			   SYSC_HAS_ENAWAKEUP | SYSC_HAS_SOFTRESET |
 			   SYSC_HAS_AUTOIDLE | SYSS_HAS_RESET_STATUS),
 	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
+	.clockact	= CLOCKACT_TEST_ICLK,
 	.sysc_fields    = &omap_hwmod_sysc_type1,
 };
 
@@ -1309,6 +1330,39 @@ static struct omap_hwmod omap3xxx_uart4_hwmod = {
 	.class		= &omap2_uart_class,
 };
 
+static struct omap_hwmod_irq_info am35xx_uart4_mpu_irqs[] = {
+	{ .irq = INT_35XX_UART4_IRQ, },
+};
+
+static struct omap_hwmod_dma_info am35xx_uart4_sdma_reqs[] = {
+	{ .name = "rx", .dma_req = AM35XX_DMA_UART4_RX, },
+	{ .name = "tx", .dma_req = AM35XX_DMA_UART4_TX, },
+};
+
+static struct omap_hwmod_ocp_if *am35xx_uart4_slaves[] = {
+	&am35xx_l4_core__uart4,
+};
+
+static struct omap_hwmod am35xx_uart4_hwmod = {
+	.name           = "uart4",
+	.mpu_irqs       = am35xx_uart4_mpu_irqs,
+	.sdma_reqs      = am35xx_uart4_sdma_reqs,
+	.main_clk       = "uart4_fck",
+	.prcm           = {
+		.omap2 = {
+			.module_offs = CORE_MOD,
+			.prcm_reg_id = 1,
+			.module_bit = OMAP3430_EN_UART4_SHIFT,
+			.idlest_reg_id = 1,
+			.idlest_idle_bit = OMAP3430_EN_UART4_SHIFT,
+		},
+	},
+	.slaves         = am35xx_uart4_slaves,
+	.slaves_cnt     = ARRAY_SIZE(am35xx_uart4_slaves),
+	.class          = &omap2_uart_class,
+};
+
+
 static struct omap_hwmod_class i2c_class = {
 	.name	= "i2c",
 	.sysc	= &i2c_sysc,
@@ -1636,7 +1690,7 @@ static struct omap_hwmod_ocp_if *omap3xxx_i2c1_slaves[] = {
 
 static struct omap_hwmod omap3xxx_i2c1_hwmod = {
 	.name		= "i2c1",
-	.flags		= HWMOD_16BIT_REG,
+	.flags		= HWMOD_16BIT_REG | HWMOD_SET_DEFAULT_CLOCKACT,
 	.mpu_irqs	= omap2_i2c1_mpu_irqs,
 	.sdma_reqs	= omap2_i2c1_sdma_reqs,
 	.main_clk	= "i2c1_fck",
@@ -1670,7 +1724,7 @@ static struct omap_hwmod_ocp_if *omap3xxx_i2c2_slaves[] = {
 
 static struct omap_hwmod omap3xxx_i2c2_hwmod = {
 	.name		= "i2c2",
-	.flags		= HWMOD_16BIT_REG,
+	.flags		= HWMOD_16BIT_REG | HWMOD_SET_DEFAULT_CLOCKACT,
 	.mpu_irqs	= omap2_i2c2_mpu_irqs,
 	.sdma_reqs	= omap2_i2c2_sdma_reqs,
 	.main_clk	= "i2c2_fck",
@@ -1715,7 +1769,7 @@ static struct omap_hwmod_ocp_if *omap3xxx_i2c3_slaves[] = {
 
 static struct omap_hwmod omap3xxx_i2c3_hwmod = {
 	.name		= "i2c3",
-	.flags		= HWMOD_16BIT_REG,
+	.flags		= HWMOD_16BIT_REG | HWMOD_SET_DEFAULT_CLOCKACT,
 	.mpu_irqs	= i2c3_mpu_irqs,
 	.sdma_reqs	= i2c3_sdma_reqs,
 	.main_clk	= "i2c3_fck",
@@ -3072,7 +3126,35 @@ static struct omap_mmc_dev_attr mmc1_dev_attr = {
 	.flags = OMAP_HSMMC_SUPPORTS_DUAL_VOLT,
 };
 
-static struct omap_hwmod omap3xxx_mmc1_hwmod = {
+/* See 35xx errata 2.1.1.128 in SPRZ278F */
+static struct omap_mmc_dev_attr mmc1_pre_es3_dev_attr = {
+	.flags = (OMAP_HSMMC_SUPPORTS_DUAL_VOLT |
+		  OMAP_HSMMC_BROKEN_MULTIBLOCK_READ),
+};
+
+static struct omap_hwmod omap3xxx_pre_es3_mmc1_hwmod = {
+	.name		= "mmc1",
+	.mpu_irqs	= omap34xx_mmc1_mpu_irqs,
+	.sdma_reqs	= omap34xx_mmc1_sdma_reqs,
+	.opt_clks	= omap34xx_mmc1_opt_clks,
+	.opt_clks_cnt	= ARRAY_SIZE(omap34xx_mmc1_opt_clks),
+	.main_clk	= "mmchs1_fck",
+	.prcm		= {
+		.omap2 = {
+			.module_offs = CORE_MOD,
+			.prcm_reg_id = 1,
+			.module_bit = OMAP3430_EN_MMC1_SHIFT,
+			.idlest_reg_id = 1,
+			.idlest_idle_bit = OMAP3430_ST_MMC1_SHIFT,
+		},
+	},
+	.dev_attr	= &mmc1_pre_es3_dev_attr,
+	.slaves		= omap3xxx_mmc1_slaves,
+	.slaves_cnt	= ARRAY_SIZE(omap3xxx_mmc1_slaves),
+	.class		= &omap34xx_mmc_class,
+};
+
+static struct omap_hwmod omap3xxx_es3plus_mmc1_hwmod = {
 	.name		= "mmc1",
 	.mpu_irqs	= omap34xx_mmc1_mpu_irqs,
 	.sdma_reqs	= omap34xx_mmc1_sdma_reqs,
@@ -3115,7 +3197,34 @@ static struct omap_hwmod_ocp_if *omap3xxx_mmc2_slaves[] = {
 	&omap3xxx_l4_core__mmc2,
 };
 
-static struct omap_hwmod omap3xxx_mmc2_hwmod = {
+/* See 35xx errata 2.1.1.128 in SPRZ278F */
+static struct omap_mmc_dev_attr mmc2_pre_es3_dev_attr = {
+	.flags = OMAP_HSMMC_BROKEN_MULTIBLOCK_READ,
+};
+
+static struct omap_hwmod omap3xxx_pre_es3_mmc2_hwmod = {
+	.name		= "mmc2",
+	.mpu_irqs	= omap34xx_mmc2_mpu_irqs,
+	.sdma_reqs	= omap34xx_mmc2_sdma_reqs,
+	.opt_clks	= omap34xx_mmc2_opt_clks,
+	.opt_clks_cnt	= ARRAY_SIZE(omap34xx_mmc2_opt_clks),
+	.main_clk	= "mmchs2_fck",
+	.prcm		= {
+		.omap2 = {
+			.module_offs = CORE_MOD,
+			.prcm_reg_id = 1,
+			.module_bit = OMAP3430_EN_MMC2_SHIFT,
+			.idlest_reg_id = 1,
+			.idlest_idle_bit = OMAP3430_ST_MMC2_SHIFT,
+		},
+	},
+	.dev_attr	= &mmc2_pre_es3_dev_attr,
+	.slaves		= omap3xxx_mmc2_slaves,
+	.slaves_cnt	= ARRAY_SIZE(omap3xxx_mmc2_slaves),
+	.class		= &omap34xx_mmc_class,
+};
+
+static struct omap_hwmod omap3xxx_es3plus_mmc2_hwmod = {
 	.name		= "mmc2",
 	.mpu_irqs	= omap34xx_mmc2_mpu_irqs,
 	.sdma_reqs	= omap34xx_mmc2_sdma_reqs,
@@ -3177,13 +3286,223 @@ static struct omap_hwmod omap3xxx_mmc3_hwmod = {
 	.class		= &omap34xx_mmc_class,
 };
 
+/*
+ * 'usb_host_hs' class
+ * high-speed multi-port usb host controller
+ */
+static struct omap_hwmod_ocp_if omap3xxx_usb_host_hs__l3_main_2 = {
+	.master		= &omap3xxx_usb_host_hs_hwmod,
+	.slave		= &omap3xxx_l3_main_hwmod,
+	.clk		= "core_l3_ick",
+	.user		= OCP_USER_MPU,
+};
+
+static struct omap_hwmod_class_sysconfig omap3xxx_usb_host_hs_sysc = {
+	.rev_offs	= 0x0000,
+	.sysc_offs	= 0x0010,
+	.syss_offs	= 0x0014,
+	.sysc_flags	= (SYSC_HAS_MIDLEMODE | SYSC_HAS_CLOCKACTIVITY |
+			   SYSC_HAS_SIDLEMODE | SYSC_HAS_ENAWAKEUP |
+			   SYSC_HAS_SOFTRESET | SYSC_HAS_AUTOIDLE),
+	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
+			   MSTANDBY_FORCE | MSTANDBY_NO | MSTANDBY_SMART),
+	.sysc_fields	= &omap_hwmod_sysc_type1,
+};
+
+static struct omap_hwmod_class omap3xxx_usb_host_hs_hwmod_class = {
+	.name = "usb_host_hs",
+	.sysc = &omap3xxx_usb_host_hs_sysc,
+};
+
+static struct omap_hwmod_ocp_if *omap3xxx_usb_host_hs_masters[] = {
+	&omap3xxx_usb_host_hs__l3_main_2,
+};
+
+static struct omap_hwmod_addr_space omap3xxx_usb_host_hs_addrs[] = {
+	{
+		.name		= "uhh",
+		.pa_start	= 0x48064000,
+		.pa_end		= 0x480643ff,
+		.flags		= ADDR_TYPE_RT
+	},
+	{
+		.name		= "ohci",
+		.pa_start	= 0x48064400,
+		.pa_end		= 0x480647ff,
+	},
+	{
+		.name		= "ehci",
+		.pa_start	= 0x48064800,
+		.pa_end		= 0x48064cff,
+	},
+	{}
+};
+
+static struct omap_hwmod_ocp_if omap3xxx_l4_core__usb_host_hs = {
+	.master		= &omap3xxx_l4_core_hwmod,
+	.slave		= &omap3xxx_usb_host_hs_hwmod,
+	.clk		= "usbhost_ick",
+	.addr		= omap3xxx_usb_host_hs_addrs,
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+static struct omap_hwmod_ocp_if *omap3xxx_usb_host_hs_slaves[] = {
+	&omap3xxx_l4_core__usb_host_hs,
+};
+
+static struct omap_hwmod_opt_clk omap3xxx_usb_host_hs_opt_clks[] = {
+	  { .role = "ehci_logic_fck", .clk = "usbhost_120m_fck", },
+};
+
+static struct omap_hwmod_irq_info omap3xxx_usb_host_hs_irqs[] = {
+	{ .name = "ohci-irq", .irq = 76 },
+	{ .name = "ehci-irq", .irq = 77 },
+	{ .irq = -1 }
+};
+
+static struct omap_hwmod omap3xxx_usb_host_hs_hwmod = {
+	.name		= "usb_host_hs",
+	.class		= &omap3xxx_usb_host_hs_hwmod_class,
+	.clkdm_name	= "l3_init_clkdm",
+	.mpu_irqs	= omap3xxx_usb_host_hs_irqs,
+	.main_clk	= "usbhost_48m_fck",
+	.prcm = {
+		.omap2 = {
+			.module_offs = OMAP3430ES2_USBHOST_MOD,
+			.prcm_reg_id = 1,
+			.module_bit = OMAP3430ES2_EN_USBHOST1_SHIFT,
+			.idlest_reg_id = 1,
+			.idlest_idle_bit = OMAP3430ES2_ST_USBHOST_IDLE_SHIFT,
+			.idlest_stdby_bit = OMAP3430ES2_ST_USBHOST_STDBY_SHIFT,
+		},
+	},
+	.opt_clks	= omap3xxx_usb_host_hs_opt_clks,
+	.opt_clks_cnt	= ARRAY_SIZE(omap3xxx_usb_host_hs_opt_clks),
+	.slaves		= omap3xxx_usb_host_hs_slaves,
+	.slaves_cnt	= ARRAY_SIZE(omap3xxx_usb_host_hs_slaves),
+	.masters	= omap3xxx_usb_host_hs_masters,
+	.masters_cnt	= ARRAY_SIZE(omap3xxx_usb_host_hs_masters),
+
+	/*
+	 * Errata: USBHOST Configured In Smart-Idle Can Lead To a Deadlock
+	 * id: i660
+	 *
+	 * Description:
+	 * In the following configuration :
+	 * - USBHOST module is set to smart-idle mode
+	 * - PRCM asserts idle_req to the USBHOST module ( This typically
+	 *   happens when the system is going to a low power mode : all ports
+	 *   have been suspended, the master part of the USBHOST module has
+	 *   entered the standby state, and SW has cut the functional clocks)
+	 * - an USBHOST interrupt occurs before the module is able to answer
+	 *   idle_ack, typically a remote wakeup IRQ.
+	 * Then the USB HOST module will enter a deadlock situation where it
+	 * is no more accessible nor functional.
+	 *
+	 * Workaround:
+	 * Don't use smart idle; use only force idle, hence HWMOD_SWSUP_SIDLE
+	 */
+
+	/*
+	 * Errata: USB host EHCI may stall when entering smart-standby mode
+	 * Id: i571
+	 *
+	 * Description:
+	 * When the USBHOST module is set to smart-standby mode, and when it is
+	 * ready to enter the standby state (i.e. all ports are suspended and
+	 * all attached devices are in suspend mode), then it can wrongly assert
+	 * the Mstandby signal too early while there are still some residual OCP
+	 * transactions ongoing. If this condition occurs, the internal state
+	 * machine may go to an undefined state and the USB link may be stuck
+	 * upon the next resume.
+	 *
+	 * Workaround:
+	 * Don't use smart standby; use only force standby,
+	 * hence HWMOD_SWSUP_MSTANDBY
+	 */
+
+	/*
+	 * During system boot; If the hwmod framework resets the module
+	 * the module will have smart idle settings; which can lead to deadlock
+	 * (above Errata Id:i660); so, dont reset the module during boot;
+	 * Use HWMOD_INIT_NO_RESET.
+	 */
+
+	.flags		= HWMOD_SWSUP_SIDLE | HWMOD_SWSUP_MSTANDBY |
+			  HWMOD_INIT_NO_RESET,
+};
+
+/*
+ * 'usb_tll_hs' class
+ * usb_tll_hs module is the adapter on the usb_host_hs ports
+ */
+static struct omap_hwmod_class_sysconfig omap3xxx_usb_tll_hs_sysc = {
+	.rev_offs	= 0x0000,
+	.sysc_offs	= 0x0010,
+	.syss_offs	= 0x0014,
+	.sysc_flags	= (SYSC_HAS_CLOCKACTIVITY | SYSC_HAS_SIDLEMODE |
+			   SYSC_HAS_ENAWAKEUP | SYSC_HAS_SOFTRESET |
+			   SYSC_HAS_AUTOIDLE),
+	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
+	.sysc_fields	= &omap_hwmod_sysc_type1,
+};
+
+static struct omap_hwmod_class omap3xxx_usb_tll_hs_hwmod_class = {
+	.name = "usb_tll_hs",
+	.sysc = &omap3xxx_usb_tll_hs_sysc,
+};
+
+static struct omap_hwmod_irq_info omap3xxx_usb_tll_hs_irqs[] = {
+	{ .name = "tll-irq", .irq = 78 },
+	{ .irq = -1 }
+};
+
+static struct omap_hwmod_addr_space omap3xxx_usb_tll_hs_addrs[] = {
+	{
+		.name		= "tll",
+		.pa_start	= 0x48062000,
+		.pa_end		= 0x48062fff,
+		.flags		= ADDR_TYPE_RT
+	},
+	{}
+};
+
+static struct omap_hwmod_ocp_if omap3xxx_l4_core__usb_tll_hs = {
+	.master		= &omap3xxx_l4_core_hwmod,
+	.slave		= &omap3xxx_usb_tll_hs_hwmod,
+	.clk		= "usbtll_ick",
+	.addr		= omap3xxx_usb_tll_hs_addrs,
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+static struct omap_hwmod_ocp_if *omap3xxx_usb_tll_hs_slaves[] = {
+	&omap3xxx_l4_core__usb_tll_hs,
+};
+
+static struct omap_hwmod omap3xxx_usb_tll_hs_hwmod = {
+	.name		= "usb_tll_hs",
+	.class		= &omap3xxx_usb_tll_hs_hwmod_class,
+	.clkdm_name	= "l3_init_clkdm",
+	.mpu_irqs	= omap3xxx_usb_tll_hs_irqs,
+	.main_clk	= "usbtll_fck",
+	.prcm = {
+		.omap2 = {
+			.module_offs = CORE_MOD,
+			.prcm_reg_id = 3,
+			.module_bit = OMAP3430ES2_EN_USBTLL_SHIFT,
+			.idlest_reg_id = 3,
+			.idlest_idle_bit = OMAP3430ES2_ST_USBTLL_SHIFT,
+		},
+	},
+	.slaves		= omap3xxx_usb_tll_hs_slaves,
+	.slaves_cnt	= ARRAY_SIZE(omap3xxx_usb_tll_hs_slaves),
+};
+
 static __initdata struct omap_hwmod *omap3xxx_hwmods[] = {
 	&omap3xxx_l3_main_hwmod,
 	&omap3xxx_l4_core_hwmod,
 	&omap3xxx_l4_per_hwmod,
 	&omap3xxx_l4_wkup_hwmod,
-	&omap3xxx_mmc1_hwmod,
-	&omap3xxx_mmc2_hwmod,
 	&omap3xxx_mmc3_hwmod,
 	&omap3xxx_mpu_hwmod,
 
@@ -3198,12 +3517,12 @@ static __initdata struct omap_hwmod *omap3xxx_hwmods[] = {
 	&omap3xxx_timer9_hwmod,
 	&omap3xxx_timer10_hwmod,
 	&omap3xxx_timer11_hwmod,
-	&omap3xxx_timer12_hwmod,
 
 	&omap3xxx_wd_timer2_hwmod,
 	&omap3xxx_uart1_hwmod,
 	&omap3xxx_uart2_hwmod,
 	&omap3xxx_uart3_hwmod,
+
 	/* dss class */
 	&omap3xxx_dss_dispc_hwmod,
 	&omap3xxx_dss_dsi1_hwmod,
@@ -3245,6 +3564,12 @@ static __initdata struct omap_hwmod *omap3xxx_hwmods[] = {
 	NULL,
 };
 
+/* GP-only hwmods */
+static __initdata struct omap_hwmod *omap3xxx_gp_hwmods[] = {
+	&omap3xxx_timer12_hwmod,
+	NULL
+};
+
 /* 3430ES1-only hwmods */
 static __initdata struct omap_hwmod *omap3430es1_hwmods[] = {
 	&omap3430es1_dss_core_hwmod,
@@ -3255,6 +3580,22 @@ static __initdata struct omap_hwmod *omap3430es1_hwmods[] = {
 static __initdata struct omap_hwmod *omap3430es2plus_hwmods[] = {
 	&omap3xxx_dss_core_hwmod,
 	&omap3xxx_usbhsotg_hwmod,
+	&omap3xxx_usb_host_hs_hwmod,
+	&omap3xxx_usb_tll_hs_hwmod,
+	NULL
+};
+
+/* <= 3430ES3-only hwmods */
+static struct omap_hwmod *omap3430_pre_es3_hwmods[] __initdata = {
+	&omap3xxx_pre_es3_mmc1_hwmod,
+	&omap3xxx_pre_es3_mmc2_hwmod,
+	NULL
+};
+
+/* 3430ES3+-only hwmods */
+static struct omap_hwmod *omap3430_es3plus_hwmods[] __initdata = {
+	&omap3xxx_es3plus_mmc1_hwmod,
+	&omap3xxx_es3plus_mmc2_hwmod,
 	NULL
 };
 
@@ -3276,12 +3617,21 @@ static __initdata struct omap_hwmod *omap36xx_hwmods[] = {
 	&omap36xx_sr2_hwmod,
 	&omap3xxx_usbhsotg_hwmod,
 	&omap3xxx_mailbox_hwmod,
+	&omap3xxx_usb_host_hs_hwmod,
+	&omap3xxx_usb_tll_hs_hwmod,
+	&omap3xxx_es3plus_mmc1_hwmod,
+	&omap3xxx_es3plus_mmc2_hwmod,
 	NULL
 };
 
 static __initdata struct omap_hwmod *am35xx_hwmods[] = {
 	&omap3xxx_dss_core_hwmod, /* XXX ??? */
 	&am35xx_usbhsotg_hwmod,
+	&am35xx_uart4_hwmod,
+	&omap3xxx_usb_host_hs_hwmod,
+	&omap3xxx_usb_tll_hs_hwmod,
+	&omap3xxx_es3plus_mmc1_hwmod,
+	&omap3xxx_es3plus_mmc2_hwmod,
 	NULL
 };
 
@@ -3296,6 +3646,13 @@ int __init omap3xxx_hwmod_init(void)
 	if (r < 0)
 		return r;
 
+	/* Register GP-only hwmods. */
+	if (omap_type() == OMAP2_DEVICE_TYPE_GP) {
+		r = omap_hwmod_register(omap3xxx_gp_hwmods);
+		if (r < 0)
+			return r;
+	}
+
 	rev = omap_rev();
 
 	/*
@@ -3334,6 +3691,21 @@ int __init omap3xxx_hwmod_init(void)
 		h = omap3430es2plus_hwmods;
 	};
 
+	if (h) {
+		r = omap_hwmod_register(h);
+		if (r < 0)
+			return r;
+	}
+
+	h = NULL;
+	if (rev == OMAP3430_REV_ES1_0 || rev == OMAP3430_REV_ES2_0 ||
+	    rev == OMAP3430_REV_ES2_1) {
+		h = omap3430_pre_es3_hwmods;
+	} else if (rev == OMAP3430_REV_ES3_0 || rev == OMAP3430_REV_ES3_1 ||
+		   rev == OMAP3430_REV_ES3_1_2) {
+		h = omap3430_es3plus_hwmods;
+	};
+
 	if (h)
 		r = omap_hwmod_register(h);
 
diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
index daaf165af696..f9f151081760 100644
--- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
@@ -70,6 +70,8 @@ static struct omap_hwmod omap44xx_mmc2_hwmod;
 static struct omap_hwmod omap44xx_mpu_hwmod;
 static struct omap_hwmod omap44xx_mpu_private_hwmod;
 static struct omap_hwmod omap44xx_usb_otg_hs_hwmod;
+static struct omap_hwmod omap44xx_usb_host_hs_hwmod;
+static struct omap_hwmod omap44xx_usb_tll_hs_hwmod;
 
 /*
  * Interconnects omap_hwmod structures
@@ -2246,6 +2248,7 @@ static struct omap_hwmod_class_sysconfig omap44xx_i2c_sysc = {
 			   SYSC_HAS_SOFTRESET | SYSS_HAS_RESET_STATUS),
 	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
 			   SIDLE_SMART_WKUP),
+	.clockact	= CLOCKACT_TEST_ICLK,
 	.sysc_fields	= &omap_hwmod_sysc_type1,
 };
 
@@ -2300,7 +2303,7 @@ static struct omap_hwmod omap44xx_i2c1_hwmod = {
 	.name		= "i2c1",
 	.class		= &omap44xx_i2c_hwmod_class,
 	.clkdm_name	= "l4_per_clkdm",
-	.flags		= HWMOD_16BIT_REG,
+	.flags		= HWMOD_16BIT_REG | HWMOD_SET_DEFAULT_CLOCKACT,
 	.mpu_irqs	= omap44xx_i2c1_irqs,
 	.sdma_reqs	= omap44xx_i2c1_sdma_reqs,
 	.main_clk	= "i2c1_fck",
@@ -2356,7 +2359,7 @@ static struct omap_hwmod omap44xx_i2c2_hwmod = {
 	.name		= "i2c2",
 	.class		= &omap44xx_i2c_hwmod_class,
 	.clkdm_name	= "l4_per_clkdm",
-	.flags		= HWMOD_16BIT_REG,
+	.flags		= HWMOD_16BIT_REG | HWMOD_SET_DEFAULT_CLOCKACT,
 	.mpu_irqs	= omap44xx_i2c2_irqs,
 	.sdma_reqs	= omap44xx_i2c2_sdma_reqs,
 	.main_clk	= "i2c2_fck",
@@ -2412,7 +2415,7 @@ static struct omap_hwmod omap44xx_i2c3_hwmod = {
 	.name		= "i2c3",
 	.class		= &omap44xx_i2c_hwmod_class,
 	.clkdm_name	= "l4_per_clkdm",
-	.flags		= HWMOD_16BIT_REG,
+	.flags		= HWMOD_16BIT_REG | HWMOD_SET_DEFAULT_CLOCKACT,
 	.mpu_irqs	= omap44xx_i2c3_irqs,
 	.sdma_reqs	= omap44xx_i2c3_sdma_reqs,
 	.main_clk	= "i2c3_fck",
@@ -2468,7 +2471,7 @@ static struct omap_hwmod omap44xx_i2c4_hwmod = {
 	.name		= "i2c4",
 	.class		= &omap44xx_i2c_hwmod_class,
 	.clkdm_name	= "l4_per_clkdm",
-	.flags		= HWMOD_16BIT_REG,
+	.flags		= HWMOD_16BIT_REG | HWMOD_SET_DEFAULT_CLOCKACT,
 	.mpu_irqs	= omap44xx_i2c4_irqs,
 	.sdma_reqs	= omap44xx_i2c4_sdma_reqs,
 	.main_clk	= "i2c4_fck",
@@ -5276,6 +5279,207 @@ static struct omap_hwmod omap44xx_wd_timer3_hwmod = {
 	.slaves_cnt	= ARRAY_SIZE(omap44xx_wd_timer3_slaves),
 };
 
+/*
+ * 'usb_host_hs' class
+ * high-speed multi-port usb host controller
+ */
+static struct omap_hwmod_ocp_if omap44xx_usb_host_hs__l3_main_2 = {
+	.master		= &omap44xx_usb_host_hs_hwmod,
+	.slave		= &omap44xx_l3_main_2_hwmod,
+	.clk		= "l3_div_ck",
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+static struct omap_hwmod_class_sysconfig omap44xx_usb_host_hs_sysc = {
+	.rev_offs	= 0x0000,
+	.sysc_offs	= 0x0010,
+	.syss_offs	= 0x0014,
+	.sysc_flags	= (SYSC_HAS_MIDLEMODE | SYSC_HAS_SIDLEMODE |
+			   SYSC_HAS_SOFTRESET),
+	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART |
+			   SIDLE_SMART_WKUP | MSTANDBY_FORCE | MSTANDBY_NO |
+			   MSTANDBY_SMART | MSTANDBY_SMART_WKUP),
+	.sysc_fields	= &omap_hwmod_sysc_type2,
+};
+
+static struct omap_hwmod_class omap44xx_usb_host_hs_hwmod_class = {
+	.name = "usb_host_hs",
+	.sysc = &omap44xx_usb_host_hs_sysc,
+};
+
+static struct omap_hwmod_ocp_if *omap44xx_usb_host_hs_masters[] = {
+	&omap44xx_usb_host_hs__l3_main_2,
+};
+
+static struct omap_hwmod_addr_space omap44xx_usb_host_hs_addrs[] = {
+	{
+		.name		= "uhh",
+		.pa_start	= 0x4a064000,
+		.pa_end		= 0x4a0647ff,
+		.flags		= ADDR_TYPE_RT
+	},
+	{
+		.name		= "ohci",
+		.pa_start	= 0x4a064800,
+		.pa_end		= 0x4a064bff,
+	},
+	{
+		.name		= "ehci",
+		.pa_start	= 0x4a064c00,
+		.pa_end		= 0x4a064fff,
+	},
+	{}
+};
+
+static struct omap_hwmod_irq_info omap44xx_usb_host_hs_irqs[] = {
+	{ .name = "ohci-irq", .irq = 76 + OMAP44XX_IRQ_GIC_START },
+	{ .name = "ehci-irq", .irq = 77 + OMAP44XX_IRQ_GIC_START },
+	{ .irq = -1 }
+};
+
+static struct omap_hwmod_ocp_if omap44xx_l4_cfg__usb_host_hs = {
+	.master		= &omap44xx_l4_cfg_hwmod,
+	.slave		= &omap44xx_usb_host_hs_hwmod,
+	.clk		= "l4_div_ck",
+	.addr		= omap44xx_usb_host_hs_addrs,
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+static struct omap_hwmod_ocp_if *omap44xx_usb_host_hs_slaves[] = {
+	&omap44xx_l4_cfg__usb_host_hs,
+};
+
+static struct omap_hwmod omap44xx_usb_host_hs_hwmod = {
+	.name		= "usb_host_hs",
+	.class		= &omap44xx_usb_host_hs_hwmod_class,
+	.clkdm_name	= "l3_init_clkdm",
+	.main_clk	= "usb_host_hs_fck",
+	.prcm = {
+		.omap4 = {
+			.clkctrl_offs = OMAP4_CM_L3INIT_USB_HOST_CLKCTRL_OFFSET,
+			.context_offs = OMAP4_RM_L3INIT_USB_HOST_CONTEXT_OFFSET,
+			.modulemode   = MODULEMODE_SWCTRL,
+		},
+	},
+	.mpu_irqs	= omap44xx_usb_host_hs_irqs,
+	.slaves		= omap44xx_usb_host_hs_slaves,
+	.slaves_cnt	= ARRAY_SIZE(omap44xx_usb_host_hs_slaves),
+	.masters	= omap44xx_usb_host_hs_masters,
+	.masters_cnt	= ARRAY_SIZE(omap44xx_usb_host_hs_masters),
+
+	/*
+	 * Errata: USBHOST Configured In Smart-Idle Can Lead To a Deadlock
+	 * id: i660
+	 *
+	 * Description:
+	 * In the following configuration :
+	 * - USBHOST module is set to smart-idle mode
+	 * - PRCM asserts idle_req to the USBHOST module ( This typically
+	 *   happens when the system is going to a low power mode : all ports
+	 *   have been suspended, the master part of the USBHOST module has
+	 *   entered the standby state, and SW has cut the functional clocks)
+	 * - an USBHOST interrupt occurs before the module is able to answer
+	 *   idle_ack, typically a remote wakeup IRQ.
+	 * Then the USB HOST module will enter a deadlock situation where it
+	 * is no more accessible nor functional.
+	 *
+	 * Workaround:
+	 * Don't use smart idle; use only force idle, hence HWMOD_SWSUP_SIDLE
+	 */
+
+	/*
+	 * Errata: USB host EHCI may stall when entering smart-standby mode
+	 * Id: i571
+	 *
+	 * Description:
+	 * When the USBHOST module is set to smart-standby mode, and when it is
+	 * ready to enter the standby state (i.e. all ports are suspended and
+	 * all attached devices are in suspend mode), then it can wrongly assert
+	 * the Mstandby signal too early while there are still some residual OCP
+	 * transactions ongoing. If this condition occurs, the internal state
+	 * machine may go to an undefined state and the USB link may be stuck
+	 * upon the next resume.
+	 *
+	 * Workaround:
+	 * Don't use smart standby; use only force standby,
+	 * hence HWMOD_SWSUP_MSTANDBY
+	 */
+
+	/*
+	 * During system boot; If the hwmod framework resets the module
+	 * the module will have smart idle settings; which can lead to deadlock
+	 * (above Errata Id:i660); so, dont reset the module during boot;
+	 * Use HWMOD_INIT_NO_RESET.
+	 */
+
+	.flags		= HWMOD_SWSUP_SIDLE | HWMOD_SWSUP_MSTANDBY |
+			  HWMOD_INIT_NO_RESET,
+};
+
+/*
+ * 'usb_tll_hs' class
+ * usb_tll_hs module is the adapter on the usb_host_hs ports
+ */
+static struct omap_hwmod_class_sysconfig omap44xx_usb_tll_hs_sysc = {
+	.rev_offs	= 0x0000,
+	.sysc_offs	= 0x0010,
+	.syss_offs	= 0x0014,
+	.sysc_flags	= (SYSC_HAS_CLOCKACTIVITY | SYSC_HAS_SIDLEMODE |
+			   SYSC_HAS_ENAWAKEUP | SYSC_HAS_SOFTRESET |
+			   SYSC_HAS_AUTOIDLE),
+	.idlemodes	= (SIDLE_FORCE | SIDLE_NO | SIDLE_SMART),
+	.sysc_fields	= &omap_hwmod_sysc_type1,
+};
+
+static struct omap_hwmod_class omap44xx_usb_tll_hs_hwmod_class = {
+	.name = "usb_tll_hs",
+	.sysc = &omap44xx_usb_tll_hs_sysc,
+};
+
+static struct omap_hwmod_irq_info omap44xx_usb_tll_hs_irqs[] = {
+	{ .name = "tll-irq", .irq = 78 + OMAP44XX_IRQ_GIC_START },
+	{ .irq = -1 }
+};
+
+static struct omap_hwmod_addr_space omap44xx_usb_tll_hs_addrs[] = {
+	{
+		.name		= "tll",
+		.pa_start	= 0x4a062000,
+		.pa_end		= 0x4a063fff,
+		.flags		= ADDR_TYPE_RT
+	},
+	{}
+};
+
+static struct omap_hwmod_ocp_if omap44xx_l4_cfg__usb_tll_hs = {
+	.master		= &omap44xx_l4_cfg_hwmod,
+	.slave		= &omap44xx_usb_tll_hs_hwmod,
+	.clk		= "l4_div_ck",
+	.addr		= omap44xx_usb_tll_hs_addrs,
+	.user		= OCP_USER_MPU | OCP_USER_SDMA,
+};
+
+static struct omap_hwmod_ocp_if *omap44xx_usb_tll_hs_slaves[] = {
+	&omap44xx_l4_cfg__usb_tll_hs,
+};
+
+static struct omap_hwmod omap44xx_usb_tll_hs_hwmod = {
+	.name		= "usb_tll_hs",
+	.class		= &omap44xx_usb_tll_hs_hwmod_class,
+	.clkdm_name	= "l3_init_clkdm",
+	.main_clk	= "usb_tll_hs_ick",
+	.prcm = {
+		.omap4 = {
+			.clkctrl_offs = OMAP4_CM_L3INIT_USB_TLL_CLKCTRL_OFFSET,
+			.context_offs = OMAP4_RM_L3INIT_USB_TLL_CONTEXT_OFFSET,
+			.modulemode   = MODULEMODE_HWCTRL,
+		},
+	},
+	.mpu_irqs	= omap44xx_usb_tll_hs_irqs,
+	.slaves		= omap44xx_usb_tll_hs_slaves,
+	.slaves_cnt	= ARRAY_SIZE(omap44xx_usb_tll_hs_slaves),
+};
+
 static __initdata struct omap_hwmod *omap44xx_hwmods[] = {
 
 	/* dmm class */
@@ -5415,13 +5619,16 @@ static __initdata struct omap_hwmod *omap44xx_hwmods[] = {
 	&omap44xx_uart3_hwmod,
 	&omap44xx_uart4_hwmod,
 
+	/* usb host class */
+	&omap44xx_usb_host_hs_hwmod,
+	&omap44xx_usb_tll_hs_hwmod,
+
 	/* usb_otg_hs class */
 	&omap44xx_usb_otg_hs_hwmod,
 
 	/* wd_timer class */
 	&omap44xx_wd_timer2_hwmod,
 	&omap44xx_wd_timer3_hwmod,
-
 	NULL,
 };
 
diff --git a/arch/arm/mach-omap2/omap_phy_internal.c b/arch/arm/mach-omap2/omap_phy_internal.c
index 58775e3c8476..4c90477e6f82 100644
--- a/arch/arm/mach-omap2/omap_phy_internal.c
+++ b/arch/arm/mach-omap2/omap_phy_internal.c
@@ -260,3 +260,38 @@ void am35x_set_mode(u8 musb_mode)
 
 	omap_ctrl_writel(devconf2, AM35XX_CONTROL_DEVCONF2);
 }
+
+void ti81xx_musb_phy_power(u8 on)
+{
+	void __iomem *scm_base = NULL;
+	u32 usbphycfg;
+
+	scm_base = ioremap(TI81XX_SCM_BASE, SZ_2K);
+	if (!scm_base) {
+		pr_err("system control module ioremap failed\n");
+		return;
+	}
+
+	usbphycfg = __raw_readl(scm_base + USBCTRL0);
+
+	if (on) {
+		if (cpu_is_ti816x()) {
+			usbphycfg |= TI816X_USBPHY0_NORMAL_MODE;
+			usbphycfg &= ~TI816X_USBPHY_REFCLK_OSC;
+		} else if (cpu_is_ti814x()) {
+			usbphycfg &= ~(USBPHY_CM_PWRDN | USBPHY_OTG_PWRDN
+				| USBPHY_DPINPUT | USBPHY_DMINPUT);
+			usbphycfg |= (USBPHY_OTGVDET_EN | USBPHY_OTGSESSEND_EN
+				| USBPHY_DPOPBUFCTL | USBPHY_DMOPBUFCTL);
+		}
+	} else {
+		if (cpu_is_ti816x())
+			usbphycfg &= ~TI816X_USBPHY0_NORMAL_MODE;
+		else if (cpu_is_ti814x())
+			usbphycfg |= USBPHY_CM_PWRDN | USBPHY_OTG_PWRDN;
+
+	}
+	__raw_writel(usbphycfg, scm_base + USBCTRL0);
+
+	iounmap(scm_base);
+}
diff --git a/arch/arm/mach-omap2/opp2xxx.h b/arch/arm/mach-omap2/opp2xxx.h
index 8affc66a92c2..8fae534eb157 100644
--- a/arch/arm/mach-omap2/opp2xxx.h
+++ b/arch/arm/mach-omap2/opp2xxx.h
@@ -51,7 +51,7 @@ struct prcm_config {
 	unsigned long cm_clksel2_pll;	/* dpllx1 or x2 out */
 	unsigned long cm_clksel_mdm;	/* modem dividers 2430 only */
 	unsigned long base_sdrc_rfr;	/* base refresh timing for a set */
-	unsigned char flags;
+	unsigned short flags;
 };
 
 
diff --git a/arch/arm/mach-omap2/pm.h b/arch/arm/mach-omap2/pm.h
index 4e166add2f35..b737b11e4499 100644
--- a/arch/arm/mach-omap2/pm.h
+++ b/arch/arm/mach-omap2/pm.h
@@ -21,6 +21,7 @@ extern void omap_sram_idle(void);
 extern int omap3_can_sleep(void);
 extern int omap_set_pwrdm_state(struct powerdomain *pwrdm, u32 state);
 extern int omap3_idle_init(void);
+extern int omap4_idle_init(void);
 
 #if defined(CONFIG_PM_OPP)
 extern int omap3_opp_init(void);
diff --git a/arch/arm/mach-omap2/pm24xx.c b/arch/arm/mach-omap2/pm24xx.c
index ef8595c80296..b8822f8b2891 100644
--- a/arch/arm/mach-omap2/pm24xx.c
+++ b/arch/arm/mach-omap2/pm24xx.c
@@ -30,7 +30,6 @@
 #include <linux/irq.h>
 #include <linux/time.h>
 #include <linux/gpio.h>
-#include <linux/console.h>
 
 #include <asm/mach/time.h>
 #include <asm/mach/irq.h>
@@ -127,27 +126,11 @@ static void omap2_enter_full_retention(void)
 	if (omap_irq_pending())
 		goto no_sleep;
 
-	/* Block console output in case it is on one of the OMAP UARTs */
-	if (!is_suspending())
-		if (!console_trylock())
-			goto no_sleep;
-
-	omap_uart_prepare_idle(0);
-	omap_uart_prepare_idle(1);
-	omap_uart_prepare_idle(2);
-
 	/* Jump to SRAM suspend code */
 	omap2_sram_suspend(sdrc_read_reg(SDRC_DLLA_CTRL),
 			   OMAP_SDRC_REGADDR(SDRC_DLLA_CTRL),
 			   OMAP_SDRC_REGADDR(SDRC_POWER));
 
-	omap_uart_resume_idle(2);
-	omap_uart_resume_idle(1);
-	omap_uart_resume_idle(0);
-
-	if (!is_suspending())
-		console_unlock();
-
 no_sleep:
 	omap2_gpio_resume_after_idle();
 
@@ -239,8 +222,6 @@ static int omap2_can_sleep(void)
 {
 	if (omap2_fclks_active())
 		return 0;
-	if (!omap_uart_can_sleep())
-		return 0;
 	if (osc_ck->usecount > 1)
 		return 0;
 	if (omap_dma_running())
@@ -291,7 +272,6 @@ static int omap2_pm_suspend(void)
 	mir1 = omap_readl(0x480fe0a4);
 	omap_writel(1 << 5, 0x480fe0ac);
 
-	omap_uart_prepare_suspend();
 	omap2_enter_full_retention();
 
 	omap_writel(mir1, 0x480fe0a4);
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index fa637dfdda53..fc6987578920 100644
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -28,7 +28,6 @@
 #include <linux/clk.h>
 #include <linux/delay.h>
 #include <linux/slab.h>
-#include <linux/console.h>
 #include <trace/events/power.h>
 
 #include <asm/suspend.h>
@@ -36,7 +35,6 @@
 #include <plat/sram.h>
 #include "clockdomain.h"
 #include "powerdomain.h"
-#include <plat/serial.h>
 #include <plat/sdrc.h>
 #include <plat/prcm.h>
 #include <plat/gpmc.h>
@@ -54,15 +52,6 @@
 
 #ifdef CONFIG_SUSPEND
 static suspend_state_t suspend_state = PM_SUSPEND_ON;
-static inline bool is_suspending(void)
-{
-	return (suspend_state != PM_SUSPEND_ON) && console_suspend_enabled;
-}
-#else
-static inline bool is_suspending(void)
-{
-	return false;
-}
 #endif
 
 /* pm34xx errata defined in pm.h */
@@ -195,7 +184,7 @@ static void omap3_save_secure_ram_context(void)
  * that any peripheral wake-up events occurring while attempting to
  * clear the PM_WKST_x are detected and cleared.
  */
-static int prcm_clear_mod_irqs(s16 module, u8 regs)
+static int prcm_clear_mod_irqs(s16 module, u8 regs, u32 ignore_bits)
 {
 	u32 wkst, fclk, iclk, clken;
 	u16 wkst_off = (regs == 3) ? OMAP3430ES2_PM_WKST3 : PM_WKST1;
@@ -207,6 +196,7 @@ static int prcm_clear_mod_irqs(s16 module, u8 regs)
 
 	wkst = omap2_prm_read_mod_reg(module, wkst_off);
 	wkst &= omap2_prm_read_mod_reg(module, grpsel_off);
+	wkst &= ~ignore_bits;
 	if (wkst) {
 		iclk = omap2_cm_read_mod_reg(module, iclk_off);
 		fclk = omap2_cm_read_mod_reg(module, fclk_off);
@@ -222,6 +212,7 @@ static int prcm_clear_mod_irqs(s16 module, u8 regs)
 			omap2_cm_set_mod_reg_bits(clken, module, fclk_off);
 			omap2_prm_write_mod_reg(wkst, module, wkst_off);
 			wkst = omap2_prm_read_mod_reg(module, wkst_off);
+			wkst &= ~ignore_bits;
 			c++;
 		}
 		omap2_cm_write_mod_reg(iclk, module, iclk_off);
@@ -231,76 +222,35 @@ static int prcm_clear_mod_irqs(s16 module, u8 regs)
 	return c;
 }
 
-static int _prcm_int_handle_wakeup(void)
+static irqreturn_t _prcm_int_handle_io(int irq, void *unused)
 {
 	int c;
 
-	c = prcm_clear_mod_irqs(WKUP_MOD, 1);
-	c += prcm_clear_mod_irqs(CORE_MOD, 1);
-	c += prcm_clear_mod_irqs(OMAP3430_PER_MOD, 1);
-	if (omap_rev() > OMAP3430_REV_ES1_0) {
-		c += prcm_clear_mod_irqs(CORE_MOD, 3);
-		c += prcm_clear_mod_irqs(OMAP3430ES2_USBHOST_MOD, 1);
-	}
+	c = prcm_clear_mod_irqs(WKUP_MOD, 1,
+		~(OMAP3430_ST_IO_MASK | OMAP3430_ST_IO_CHAIN_MASK));
 
-	return c;
+	return c ? IRQ_HANDLED : IRQ_NONE;
 }
 
-/*
- * PRCM Interrupt Handler
- *
- * The PRM_IRQSTATUS_MPU register indicates if there are any pending
- * interrupts from the PRCM for the MPU. These bits must be cleared in
- * order to clear the PRCM interrupt. The PRCM interrupt handler is
- * implemented to simply clear the PRM_IRQSTATUS_MPU in order to clear
- * the PRCM interrupt. Please note that bit 0 of the PRM_IRQSTATUS_MPU
- * register indicates that a wake-up event is pending for the MPU and
- * this bit can only be cleared if the all the wake-up events latched
- * in the various PM_WKST_x registers have been cleared. The interrupt
- * handler is implemented using a do-while loop so that if a wake-up
- * event occurred during the processing of the prcm interrupt handler
- * (setting a bit in the corresponding PM_WKST_x register and thus
- * preventing us from clearing bit 0 of the PRM_IRQSTATUS_MPU register)
- * this would be handled.
- */
-static irqreturn_t prcm_interrupt_handler (int irq, void *dev_id)
+static irqreturn_t _prcm_int_handle_wakeup(int irq, void *unused)
 {
-	u32 irqenable_mpu, irqstatus_mpu;
-	int c = 0;
-
-	irqenable_mpu = omap2_prm_read_mod_reg(OCP_MOD,
-					 OMAP3_PRM_IRQENABLE_MPU_OFFSET);
-	irqstatus_mpu = omap2_prm_read_mod_reg(OCP_MOD,
-					 OMAP3_PRM_IRQSTATUS_MPU_OFFSET);
-	irqstatus_mpu &= irqenable_mpu;
-
-	do {
-		if (irqstatus_mpu & (OMAP3430_WKUP_ST_MASK |
-				     OMAP3430_IO_ST_MASK)) {
-			c = _prcm_int_handle_wakeup();
-
-			/*
-			 * Is the MPU PRCM interrupt handler racing with the
-			 * IVA2 PRCM interrupt handler ?
-			 */
-			WARN(c == 0, "prcm: WARNING: PRCM indicated MPU wakeup "
-			     "but no wakeup sources are marked\n");
-		} else {
-			/* XXX we need to expand our PRCM interrupt handler */
-			WARN(1, "prcm: WARNING: PRCM interrupt received, but "
-			     "no code to handle it (%08x)\n", irqstatus_mpu);
-		}
-
-		omap2_prm_write_mod_reg(irqstatus_mpu, OCP_MOD,
-					OMAP3_PRM_IRQSTATUS_MPU_OFFSET);
-
-		irqstatus_mpu = omap2_prm_read_mod_reg(OCP_MOD,
-					OMAP3_PRM_IRQSTATUS_MPU_OFFSET);
-		irqstatus_mpu &= irqenable_mpu;
+	int c;
 
-	} while (irqstatus_mpu);
+	/*
+	 * Clear all except ST_IO and ST_IO_CHAIN for wkup module,
+	 * these are handled in a separate handler to avoid acking
+	 * IO events before parsing in mux code
+	 */
+	c = prcm_clear_mod_irqs(WKUP_MOD, 1,
+		OMAP3430_ST_IO_MASK | OMAP3430_ST_IO_CHAIN_MASK);
+	c += prcm_clear_mod_irqs(CORE_MOD, 1, 0);
+	c += prcm_clear_mod_irqs(OMAP3430_PER_MOD, 1, 0);
+	if (omap_rev() > OMAP3430_REV_ES1_0) {
+		c += prcm_clear_mod_irqs(CORE_MOD, 3, 0);
+		c += prcm_clear_mod_irqs(OMAP3430ES2_USBHOST_MOD, 1, 0);
+	}
 
-	return IRQ_HANDLED;
+	return c ? IRQ_HANDLED : IRQ_NONE;
 }
 
 static void omap34xx_save_context(u32 *save)
@@ -376,20 +326,11 @@ void omap_sram_idle(void)
 			omap3_enable_io_chain();
 	}
 
-	/* Block console output in case it is on one of the OMAP UARTs */
-	if (!is_suspending())
-		if (per_next_state < PWRDM_POWER_ON ||
-		    core_next_state < PWRDM_POWER_ON)
-			if (!console_trylock())
-				goto console_still_active;
-
 	pwrdm_pre_transition();
 
 	/* PER */
 	if (per_next_state < PWRDM_POWER_ON) {
 		per_going_off = (per_next_state == PWRDM_POWER_OFF) ? 1 : 0;
-		omap_uart_prepare_idle(2);
-		omap_uart_prepare_idle(3);
 		omap2_gpio_prepare_for_idle(per_going_off);
 		if (per_next_state == PWRDM_POWER_OFF)
 				omap3_per_save_context();
@@ -397,8 +338,6 @@ void omap_sram_idle(void)
 
 	/* CORE */
 	if (core_next_state < PWRDM_POWER_ON) {
-		omap_uart_prepare_idle(0);
-		omap_uart_prepare_idle(1);
 		if (core_next_state == PWRDM_POWER_OFF) {
 			omap3_core_save_context();
 			omap3_cm_save_context();
@@ -447,8 +386,6 @@ void omap_sram_idle(void)
 			omap3_sram_restore_context();
 			omap2_sms_restore_context();
 		}
-		omap_uart_resume_idle(0);
-		omap_uart_resume_idle(1);
 		if (core_next_state == PWRDM_POWER_OFF)
 			omap2_prm_clear_mod_reg_bits(OMAP3430_AUTO_OFF_MASK,
 					       OMAP3430_GR_MOD,
@@ -464,14 +401,8 @@ void omap_sram_idle(void)
 		omap2_gpio_resume_after_idle();
 		if (per_prev_state == PWRDM_POWER_OFF)
 			omap3_per_restore_context();
-		omap_uart_resume_idle(2);
-		omap_uart_resume_idle(3);
 	}
 
-	if (!is_suspending())
-		console_unlock();
-
-console_still_active:
 	/* Disable IO-PAD and IO-CHAIN wakeup */
 	if (omap3_has_io_wakeup() &&
 	    (per_next_state < PWRDM_POWER_ON ||
@@ -485,21 +416,11 @@ console_still_active:
 	clkdm_allow_idle(mpu_pwrdm->pwrdm_clkdms[0]);
 }
 
-int omap3_can_sleep(void)
-{
-	if (!omap_uart_can_sleep())
-		return 0;
-	return 1;
-}
-
 static void omap3_pm_idle(void)
 {
 	local_irq_disable();
 	local_fiq_disable();
 
-	if (!omap3_can_sleep())
-		goto out;
-
 	if (omap_irq_pending() || need_resched())
 		goto out;
 
@@ -533,7 +454,6 @@ static int omap3_pm_suspend(void)
 			goto restore;
 	}
 
-	omap_uart_prepare_suspend();
 	omap3_intc_suspend();
 
 	omap_sram_idle();
@@ -580,22 +500,27 @@ static int omap3_pm_begin(suspend_state_t state)
 {
 	disable_hlt();
 	suspend_state = state;
-	omap_uart_enable_irqs(0);
+	omap_prcm_irq_prepare();
 	return 0;
 }
 
 static void omap3_pm_end(void)
 {
 	suspend_state = PM_SUSPEND_ON;
-	omap_uart_enable_irqs(1);
 	enable_hlt();
 	return;
 }
 
+static void omap3_pm_finish(void)
+{
+	omap_prcm_irq_complete();
+}
+
 static const struct platform_suspend_ops omap_pm_ops = {
 	.begin		= omap3_pm_begin,
 	.end		= omap3_pm_end,
 	.enter		= omap3_pm_enter,
+	.finish		= omap3_pm_finish,
 	.valid		= suspend_valid_only_mem,
 };
 #endif /* CONFIG_SUSPEND */
@@ -701,10 +626,6 @@ static void __init prcm_setup_regs(void)
 			  OMAP3430_GRPSEL_GPT1_MASK |
 			  OMAP3430_GRPSEL_GPT12_MASK,
 			  WKUP_MOD, OMAP3430_PM_MPUGRPSEL);
-	/* For some reason IO doesn't generate wakeup event even if
-	 * it is selected to mpu wakeup goup */
-	omap2_prm_write_mod_reg(OMAP3430_IO_EN_MASK | OMAP3430_WKUP_EN_MASK,
-			  OCP_MOD, OMAP3_PRM_IRQENABLE_MPU_OFFSET);
 
 	/* Enable PM_WKEN to support DSS LPR */
 	omap2_prm_write_mod_reg(OMAP3430_PM_WKEN_DSS_EN_DSS_MASK,
@@ -881,12 +802,21 @@ static int __init omap3_pm_init(void)
 	 * supervised mode for powerdomains */
 	prcm_setup_regs();
 
-	ret = request_irq(INT_34XX_PRCM_MPU_IRQ,
-			  (irq_handler_t)prcm_interrupt_handler,
-			  IRQF_DISABLED, "prcm", NULL);
+	ret = request_irq(omap_prcm_event_to_irq("wkup"),
+		_prcm_int_handle_wakeup, IRQF_NO_SUSPEND, "pm_wkup", NULL);
+
+	if (ret) {
+		pr_err("pm: Failed to request pm_wkup irq\n");
+		goto err1;
+	}
+
+	/* IO interrupt is shared with mux code */
+	ret = request_irq(omap_prcm_event_to_irq("io"),
+		_prcm_int_handle_io, IRQF_SHARED | IRQF_NO_SUSPEND, "pm_io",
+		omap3_pm_init);
+
 	if (ret) {
-		printk(KERN_ERR "request_irq failed to register for 0x%x\n",
-		       INT_34XX_PRCM_MPU_IRQ);
+		pr_err("pm: Failed to request pm_io irq\n");
 		goto err1;
 	}
 
diff --git a/arch/arm/mach-omap2/pm44xx.c b/arch/arm/mach-omap2/pm44xx.c
index 8edb015f5618..c264ef7219c1 100644
--- a/arch/arm/mach-omap2/pm44xx.c
+++ b/arch/arm/mach-omap2/pm44xx.c
@@ -1,8 +1,9 @@
 /*
  * OMAP4 Power Management Routines
  *
- * Copyright (C) 2010 Texas Instruments, Inc.
+ * Copyright (C) 2010-2011 Texas Instruments, Inc.
  * Rajendra Nayak <rnayak@ti.com>
+ * Santosh Shilimkar <santosh.shilimkar@ti.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -17,13 +18,16 @@
 #include <linux/slab.h>
 
 #include "common.h"
+#include "clockdomain.h"
 #include "powerdomain.h"
+#include "pm.h"
 
 struct power_state {
 	struct powerdomain *pwrdm;
 	u32 next_state;
 #ifdef CONFIG_SUSPEND
 	u32 saved_state;
+	u32 saved_logic_state;
 #endif
 	struct list_head node;
 };
@@ -33,7 +37,50 @@ static LIST_HEAD(pwrst_list);
 #ifdef CONFIG_SUSPEND
 static int omap4_pm_suspend(void)
 {
-	do_wfi();
+	struct power_state *pwrst;
+	int state, ret = 0;
+	u32 cpu_id = smp_processor_id();
+
+	/* Save current powerdomain state */
+	list_for_each_entry(pwrst, &pwrst_list, node) {
+		pwrst->saved_state = pwrdm_read_next_pwrst(pwrst->pwrdm);
+		pwrst->saved_logic_state = pwrdm_read_logic_retst(pwrst->pwrdm);
+	}
+
+	/* Set targeted power domain states by suspend */
+	list_for_each_entry(pwrst, &pwrst_list, node) {
+		omap_set_pwrdm_state(pwrst->pwrdm, pwrst->next_state);
+		pwrdm_set_logic_retst(pwrst->pwrdm, PWRDM_POWER_OFF);
+	}
+
+	/*
+	 * For MPUSS to hit power domain retention(CSWR or OSWR),
+	 * CPU0 and CPU1 power domains need to be in OFF or DORMANT state,
+	 * since CPU power domain CSWR is not supported by hardware
+	 * Only master CPU follows suspend path. All other CPUs follow
+	 * CPU hotplug path in system wide suspend. On OMAP4, CPU power
+	 * domain CSWR is not supported by hardware.
+	 * More details can be found in OMAP4430 TRM section 4.3.4.2.
+	 */
+	omap4_enter_lowpower(cpu_id, PWRDM_POWER_OFF);
+
+	/* Restore next powerdomain state */
+	list_for_each_entry(pwrst, &pwrst_list, node) {
+		state = pwrdm_read_prev_pwrst(pwrst->pwrdm);
+		if (state > pwrst->next_state) {
+			pr_info("Powerdomain (%s) didn't enter "
+			       "target state %d\n",
+			       pwrst->pwrdm->name, pwrst->next_state);
+			ret = -1;
+		}
+		omap_set_pwrdm_state(pwrst->pwrdm, pwrst->saved_state);
+		pwrdm_set_logic_retst(pwrst->pwrdm, pwrst->saved_logic_state);
+	}
+	if (ret)
+		pr_crit("Could not enter target state in pm_suspend\n");
+	else
+		pr_info("Successfully put all powerdomains to target state\n");
+
 	return 0;
 }
 
@@ -73,6 +120,22 @@ static const struct platform_suspend_ops omap_pm_ops = {
 };
 #endif /* CONFIG_SUSPEND */
 
+/*
+ * Enable hardware supervised mode for all clockdomains if it's
+ * supported. Initiate sleep transition for other clockdomains, if
+ * they are not used
+ */
+static int __init clkdms_setup(struct clockdomain *clkdm, void *unused)
+{
+	if (clkdm->flags & CLKDM_CAN_ENABLE_AUTO)
+		clkdm_allow_idle(clkdm);
+	else if (clkdm->flags & CLKDM_CAN_FORCE_SLEEP &&
+			atomic_read(&clkdm->usecount) == 0)
+		clkdm_sleep(clkdm);
+	return 0;
+}
+
+
 static int __init pwrdms_setup(struct powerdomain *pwrdm, void *unused)
 {
 	struct power_state *pwrst;
@@ -80,14 +143,48 @@ static int __init pwrdms_setup(struct powerdomain *pwrdm, void *unused)
 	if (!pwrdm->pwrsts)
 		return 0;
 
+	/*
+	 * Skip CPU0 and CPU1 power domains. CPU1 is programmed
+	 * through hotplug path and CPU0 explicitly programmed
+	 * further down in the code path
+	 */
+	if (!strncmp(pwrdm->name, "cpu", 3))
+		return 0;
+
+	/*
+	 * FIXME: Remove this check when core retention is supported
+	 * Only MPUSS power domain is added in the list.
+	 */
+	if (strcmp(pwrdm->name, "mpu_pwrdm"))
+		return 0;
+
 	pwrst = kmalloc(sizeof(struct power_state), GFP_ATOMIC);
 	if (!pwrst)
 		return -ENOMEM;
+
 	pwrst->pwrdm = pwrdm;
-	pwrst->next_state = PWRDM_POWER_ON;
+	pwrst->next_state = PWRDM_POWER_RET;
 	list_add(&pwrst->node, &pwrst_list);
 
-	return pwrdm_set_next_pwrst(pwrst->pwrdm, pwrst->next_state);
+	return omap_set_pwrdm_state(pwrst->pwrdm, pwrst->next_state);
+}
+
+/**
+ * omap_default_idle - OMAP4 default ilde routine.'
+ *
+ * Implements OMAP4 memory, IO ordering requirements which can't be addressed
+ * with default arch_idle() hook. Used by all CPUs with !CONFIG_CPUIDLE and
+ * by secondary CPU with CONFIG_CPUIDLE.
+ */
+static void omap_default_idle(void)
+{
+	local_irq_disable();
+	local_fiq_disable();
+
+	omap_do_wfi();
+
+	local_fiq_enable();
+	local_irq_enable();
 }
 
 /**
@@ -99,10 +196,17 @@ static int __init pwrdms_setup(struct powerdomain *pwrdm, void *unused)
 static int __init omap4_pm_init(void)
 {
 	int ret;
+	struct clockdomain *emif_clkdm, *mpuss_clkdm, *l3_1_clkdm;
+	struct clockdomain *ducati_clkdm, *l3_2_clkdm, *l4_per_clkdm;
 
 	if (!cpu_is_omap44xx())
 		return -ENODEV;
 
+	if (omap_rev() == OMAP4430_REV_ES1_0) {
+		WARN(1, "Power Management not supported on OMAP4430 ES1.0\n");
+		return -ENODEV;
+	}
+
 	pr_err("Power Management for TI OMAP4.\n");
 
 	ret = pwrdm_for_each(pwrdms_setup, NULL);
@@ -111,10 +215,51 @@ static int __init omap4_pm_init(void)
 		goto err2;
 	}
 
+	/*
+	 * The dynamic dependency between MPUSS -> MEMIF and
+	 * MPUSS -> L4_PER/L3_* and DUCATI -> L3_* doesn't work as
+	 * expected. The hardware recommendation is to enable static
+	 * dependencies for these to avoid system lock ups or random crashes.
+	 */
+	mpuss_clkdm = clkdm_lookup("mpuss_clkdm");
+	emif_clkdm = clkdm_lookup("l3_emif_clkdm");
+	l3_1_clkdm = clkdm_lookup("l3_1_clkdm");
+	l3_2_clkdm = clkdm_lookup("l3_2_clkdm");
+	l4_per_clkdm = clkdm_lookup("l4_per_clkdm");
+	ducati_clkdm = clkdm_lookup("ducati_clkdm");
+	if ((!mpuss_clkdm) || (!emif_clkdm) || (!l3_1_clkdm) ||
+		(!l3_2_clkdm) || (!ducati_clkdm) || (!l4_per_clkdm))
+		goto err2;
+
+	ret = clkdm_add_wkdep(mpuss_clkdm, emif_clkdm);
+	ret |= clkdm_add_wkdep(mpuss_clkdm, l3_1_clkdm);
+	ret |= clkdm_add_wkdep(mpuss_clkdm, l3_2_clkdm);
+	ret |= clkdm_add_wkdep(mpuss_clkdm, l4_per_clkdm);
+	ret |= clkdm_add_wkdep(ducati_clkdm, l3_1_clkdm);
+	ret |= clkdm_add_wkdep(ducati_clkdm, l3_2_clkdm);
+	if (ret) {
+		pr_err("Failed to add MPUSS -> L3/EMIF/L4PER, DUCATI -> L3 "
+				"wakeup dependency\n");
+		goto err2;
+	}
+
+	ret = omap4_mpuss_init();
+	if (ret) {
+		pr_err("Failed to initialise OMAP4 MPUSS\n");
+		goto err2;
+	}
+
+	(void) clkdm_for_each(clkdms_setup, NULL);
+
 #ifdef CONFIG_SUSPEND
 	suspend_set_ops(&omap_pm_ops);
 #endif /* CONFIG_SUSPEND */
 
+	/* Overwrite the default arch_idle() */
+	pm_idle = omap_default_idle;
+
+	omap4_idle_init();
+
 err2:
 	return ret;
 }
diff --git a/arch/arm/mach-omap2/prcm-common.h b/arch/arm/mach-omap2/prcm-common.h
index 0363dcb0ef93..5aa5435e3ff1 100644
--- a/arch/arm/mach-omap2/prcm-common.h
+++ b/arch/arm/mach-omap2/prcm-common.h
@@ -4,7 +4,7 @@
 /*
  * OMAP2/3 PRCM base and module definitions
  *
- * Copyright (C) 2007-2009 Texas Instruments, Inc.
+ * Copyright (C) 2007-2009, 2011 Texas Instruments, Inc.
  * Copyright (C) 2007-2009 Nokia Corporation
  *
  * Written by Paul Walmsley
@@ -201,6 +201,8 @@
 #define OMAP3430_EN_MMC2_SHIFT				25
 #define OMAP3430_EN_MMC1_MASK				(1 << 24)
 #define OMAP3430_EN_MMC1_SHIFT				24
+#define OMAP3430_EN_UART4_MASK				(1 << 23)
+#define OMAP3430_EN_UART4_SHIFT				23
 #define OMAP3430_EN_MCSPI4_MASK				(1 << 21)
 #define OMAP3430_EN_MCSPI4_SHIFT			21
 #define OMAP3430_EN_MCSPI3_MASK				(1 << 20)
@@ -408,6 +410,79 @@
 extern void __iomem *prm_base;
 extern void __iomem *cm_base;
 extern void __iomem *cm2_base;
+
+/**
+ * struct omap_prcm_irq - describes a PRCM interrupt bit
+ * @name: a short name describing the interrupt type, e.g. "wkup" or "io"
+ * @offset: the bit shift of the interrupt inside the IRQ{ENABLE,STATUS} regs
+ * @priority: should this interrupt be handled before @priority=false IRQs?
+ *
+ * Describes interrupt bits inside the PRM_IRQ{ENABLE,STATUS}_MPU* registers.
+ * On systems with multiple PRM MPU IRQ registers, the bitfields read from
+ * the registers are concatenated, so @offset could be > 31 on these systems -
+ * see omap_prm_irq_handler() for more details.  I/O ring interrupts should
+ * have @priority set to true.
+ */
+struct omap_prcm_irq {
+	const char *name;
+	unsigned int offset;
+	bool priority;
+};
+
+/**
+ * struct omap_prcm_irq_setup - PRCM interrupt controller details
+ * @ack: PRM register offset for the first PRM_IRQSTATUS_MPU register
+ * @mask: PRM register offset for the first PRM_IRQENABLE_MPU register
+ * @nr_regs: number of PRM_IRQ{STATUS,ENABLE}_MPU* registers
+ * @nr_irqs: number of entries in the @irqs array
+ * @irqs: ptr to an array of PRCM interrupt bits (see @nr_irqs)
+ * @irq: MPU IRQ asserted when a PRCM interrupt arrives
+ * @read_pending_irqs: fn ptr to determine if any PRCM IRQs are pending
+ * @ocp_barrier: fn ptr to force buffered PRM writes to complete
+ * @save_and_clear_irqen: fn ptr to save and clear IRQENABLE regs
+ * @restore_irqen: fn ptr to save and clear IRQENABLE regs
+ * @saved_mask: IRQENABLE regs are saved here during suspend
+ * @priority_mask: 1 bit per IRQ, set to 1 if omap_prcm_irq.priority = true
+ * @base_irq: base dynamic IRQ number, returned from irq_alloc_descs() in init
+ * @suspended: set to true after Linux suspend code has called our ->prepare()
+ * @suspend_save_flag: set to true after IRQ masks have been saved and disabled
+ *
+ * @saved_mask, @priority_mask, @base_irq, @suspended, and
+ * @suspend_save_flag are populated dynamically, and are not to be
+ * specified in static initializers.
+ */
+struct omap_prcm_irq_setup {
+	u16 ack;
+	u16 mask;
+	u8 nr_regs;
+	u8 nr_irqs;
+	const struct omap_prcm_irq *irqs;
+	int irq;
+	void (*read_pending_irqs)(unsigned long *events);
+	void (*ocp_barrier)(void);
+	void (*save_and_clear_irqen)(u32 *saved_mask);
+	void (*restore_irqen)(u32 *saved_mask);
+	u32 *saved_mask;
+	u32 *priority_mask;
+	int base_irq;
+	bool suspended;
+	bool suspend_save_flag;
+};
+
+/* OMAP_PRCM_IRQ: convenience macro for creating struct omap_prcm_irq records */
+#define OMAP_PRCM_IRQ(_name, _offset, _priority) {	\
+	.name = _name,					\
+	.offset = _offset,				\
+	.priority = _priority				\
+	}
+
+extern void omap_prcm_irq_cleanup(void);
+extern int omap_prcm_register_chain_handler(
+	struct omap_prcm_irq_setup *irq_setup);
+extern int omap_prcm_event_to_irq(const char *event);
+extern void omap_prcm_irq_prepare(void);
+extern void omap_prcm_irq_complete(void);
+
 # endif
 
 #endif
diff --git a/arch/arm/mach-omap2/prm2xxx_3xxx.c b/arch/arm/mach-omap2/prm2xxx_3xxx.c
index 9a08ba397327..c1c4d86a79a8 100644
--- a/arch/arm/mach-omap2/prm2xxx_3xxx.c
+++ b/arch/arm/mach-omap2/prm2xxx_3xxx.c
@@ -1,7 +1,7 @@
 /*
  * OMAP2/3 PRM module functions
  *
- * Copyright (C) 2010 Texas Instruments, Inc.
+ * Copyright (C) 2010-2011 Texas Instruments, Inc.
  * Copyright (C) 2010 Nokia Corporation
  * Benoît Cousson
  * Paul Walmsley
@@ -27,6 +27,24 @@
 #include "prm-regbits-24xx.h"
 #include "prm-regbits-34xx.h"
 
+static const struct omap_prcm_irq omap3_prcm_irqs[] = {
+	OMAP_PRCM_IRQ("wkup",	0,	0),
+	OMAP_PRCM_IRQ("io",	9,	1),
+};
+
+static struct omap_prcm_irq_setup omap3_prcm_irq_setup = {
+	.ack			= OMAP3_PRM_IRQSTATUS_MPU_OFFSET,
+	.mask			= OMAP3_PRM_IRQENABLE_MPU_OFFSET,
+	.nr_regs		= 1,
+	.irqs			= omap3_prcm_irqs,
+	.nr_irqs		= ARRAY_SIZE(omap3_prcm_irqs),
+	.irq			= INT_34XX_PRCM_MPU_IRQ,
+	.read_pending_irqs	= &omap3xxx_prm_read_pending_irqs,
+	.ocp_barrier		= &omap3xxx_prm_ocp_barrier,
+	.save_and_clear_irqen	= &omap3xxx_prm_save_and_clear_irqen,
+	.restore_irqen		= &omap3xxx_prm_restore_irqen,
+};
+
 u32 omap2_prm_read_mod_reg(s16 module, u16 idx)
 {
 	return __raw_readl(prm_base + module + idx);
@@ -212,3 +230,80 @@ u32 omap3_prm_vcvp_rmw(u32 mask, u32 bits, u8 offset)
 {
 	return omap2_prm_rmw_mod_reg_bits(mask, bits, OMAP3430_GR_MOD, offset);
 }
+
+/**
+ * omap3xxx_prm_read_pending_irqs - read pending PRM MPU IRQs into @events
+ * @events: ptr to a u32, preallocated by caller
+ *
+ * Read PRM_IRQSTATUS_MPU bits, AND'ed with the currently-enabled PRM
+ * MPU IRQs, and store the result into the u32 pointed to by @events.
+ * No return value.
+ */
+void omap3xxx_prm_read_pending_irqs(unsigned long *events)
+{
+	u32 mask, st;
+
+	/* XXX Can the mask read be avoided (e.g., can it come from RAM?) */
+	mask = omap2_prm_read_mod_reg(OCP_MOD, OMAP3_PRM_IRQENABLE_MPU_OFFSET);
+	st = omap2_prm_read_mod_reg(OCP_MOD, OMAP3_PRM_IRQSTATUS_MPU_OFFSET);
+
+	events[0] = mask & st;
+}
+
+/**
+ * omap3xxx_prm_ocp_barrier - force buffered MPU writes to the PRM to complete
+ *
+ * Force any buffered writes to the PRM IP block to complete.  Needed
+ * by the PRM IRQ handler, which reads and writes directly to the IP
+ * block, to avoid race conditions after acknowledging or clearing IRQ
+ * bits.  No return value.
+ */
+void omap3xxx_prm_ocp_barrier(void)
+{
+	omap2_prm_read_mod_reg(OCP_MOD, OMAP3_PRM_REVISION_OFFSET);
+}
+
+/**
+ * omap3xxx_prm_save_and_clear_irqen - save/clear PRM_IRQENABLE_MPU reg
+ * @saved_mask: ptr to a u32 array to save IRQENABLE bits
+ *
+ * Save the PRM_IRQENABLE_MPU register to @saved_mask.  @saved_mask
+ * must be allocated by the caller.  Intended to be used in the PRM
+ * interrupt handler suspend callback.  The OCP barrier is needed to
+ * ensure the write to disable PRM interrupts reaches the PRM before
+ * returning; otherwise, spurious interrupts might occur.  No return
+ * value.
+ */
+void omap3xxx_prm_save_and_clear_irqen(u32 *saved_mask)
+{
+	saved_mask[0] = omap2_prm_read_mod_reg(OCP_MOD,
+					       OMAP3_PRM_IRQENABLE_MPU_OFFSET);
+	omap2_prm_write_mod_reg(0, OCP_MOD, OMAP3_PRM_IRQENABLE_MPU_OFFSET);
+
+	/* OCP barrier */
+	omap2_prm_read_mod_reg(OCP_MOD, OMAP3_PRM_REVISION_OFFSET);
+}
+
+/**
+ * omap3xxx_prm_restore_irqen - set PRM_IRQENABLE_MPU register from args
+ * @saved_mask: ptr to a u32 array of IRQENABLE bits saved previously
+ *
+ * Restore the PRM_IRQENABLE_MPU register from @saved_mask.  Intended
+ * to be used in the PRM interrupt handler resume callback to restore
+ * values saved by omap3xxx_prm_save_and_clear_irqen().  No OCP
+ * barrier should be needed here; any pending PRM interrupts will fire
+ * once the writes reach the PRM.  No return value.
+ */
+void omap3xxx_prm_restore_irqen(u32 *saved_mask)
+{
+	omap2_prm_write_mod_reg(saved_mask[0], OCP_MOD,
+				OMAP3_PRM_IRQENABLE_MPU_OFFSET);
+}
+
+static int __init omap3xxx_prcm_init(void)
+{
+	if (cpu_is_omap34xx())
+		return omap_prcm_register_chain_handler(&omap3_prcm_irq_setup);
+	return 0;
+}
+subsys_initcall(omap3xxx_prcm_init);
diff --git a/arch/arm/mach-omap2/prm2xxx_3xxx.h b/arch/arm/mach-omap2/prm2xxx_3xxx.h
index cef533df0861..70ac2a19dc5f 100644
--- a/arch/arm/mach-omap2/prm2xxx_3xxx.h
+++ b/arch/arm/mach-omap2/prm2xxx_3xxx.h
@@ -1,7 +1,7 @@
 /*
  * OMAP2/3 Power/Reset Management (PRM) register definitions
  *
- * Copyright (C) 2007-2009 Texas Instruments, Inc.
+ * Copyright (C) 2007-2009, 2011 Texas Instruments, Inc.
  * Copyright (C) 2008-2010 Nokia Corporation
  * Paul Walmsley
  *
@@ -314,6 +314,13 @@ void omap3_prm_vp_clear_txdone(u8 vp_id);
 extern u32 omap3_prm_vcvp_read(u8 offset);
 extern void omap3_prm_vcvp_write(u32 val, u8 offset);
 extern u32 omap3_prm_vcvp_rmw(u32 mask, u32 bits, u8 offset);
+
+/* PRM interrupt-related functions */
+extern void omap3xxx_prm_read_pending_irqs(unsigned long *events);
+extern void omap3xxx_prm_ocp_barrier(void);
+extern void omap3xxx_prm_save_and_clear_irqen(u32 *saved_mask);
+extern void omap3xxx_prm_restore_irqen(u32 *saved_mask);
+
 #endif	/* CONFIG_ARCH_OMAP4 */
 
 #endif
diff --git a/arch/arm/mach-omap2/prm44xx.c b/arch/arm/mach-omap2/prm44xx.c
index dd885eecf22a..33dd655e6aab 100644
--- a/arch/arm/mach-omap2/prm44xx.c
+++ b/arch/arm/mach-omap2/prm44xx.c
@@ -27,6 +27,24 @@
 #include "prcm44xx.h"
 #include "prminst44xx.h"
 
+static const struct omap_prcm_irq omap4_prcm_irqs[] = {
+	OMAP_PRCM_IRQ("wkup",   0,      0),
+	OMAP_PRCM_IRQ("io",     9,      1),
+};
+
+static struct omap_prcm_irq_setup omap4_prcm_irq_setup = {
+	.ack			= OMAP4_PRM_IRQSTATUS_MPU_OFFSET,
+	.mask			= OMAP4_PRM_IRQENABLE_MPU_OFFSET,
+	.nr_regs		= 2,
+	.irqs			= omap4_prcm_irqs,
+	.nr_irqs		= ARRAY_SIZE(omap4_prcm_irqs),
+	.irq			= OMAP44XX_IRQ_PRCM,
+	.read_pending_irqs	= &omap44xx_prm_read_pending_irqs,
+	.ocp_barrier		= &omap44xx_prm_ocp_barrier,
+	.save_and_clear_irqen	= &omap44xx_prm_save_and_clear_irqen,
+	.restore_irqen		= &omap44xx_prm_restore_irqen,
+};
+
 /* PRM low-level functions */
 
 /* Read a register in a CM/PRM instance in the PRM module */
@@ -121,3 +139,101 @@ u32 omap4_prm_vcvp_rmw(u32 mask, u32 bits, u8 offset)
 					       OMAP4430_PRM_DEVICE_INST,
 					       offset);
 }
+
+static inline u32 _read_pending_irq_reg(u16 irqen_offs, u16 irqst_offs)
+{
+	u32 mask, st;
+
+	/* XXX read mask from RAM? */
+	mask = omap4_prm_read_inst_reg(OMAP4430_PRM_DEVICE_INST, irqen_offs);
+	st = omap4_prm_read_inst_reg(OMAP4430_PRM_DEVICE_INST, irqst_offs);
+
+	return mask & st;
+}
+
+/**
+ * omap44xx_prm_read_pending_irqs - read pending PRM MPU IRQs into @events
+ * @events: ptr to two consecutive u32s, preallocated by caller
+ *
+ * Read PRM_IRQSTATUS_MPU* bits, AND'ed with the currently-enabled PRM
+ * MPU IRQs, and store the result into the two u32s pointed to by @events.
+ * No return value.
+ */
+void omap44xx_prm_read_pending_irqs(unsigned long *events)
+{
+	events[0] = _read_pending_irq_reg(OMAP4_PRM_IRQENABLE_MPU_OFFSET,
+					  OMAP4_PRM_IRQSTATUS_MPU_OFFSET);
+
+	events[1] = _read_pending_irq_reg(OMAP4_PRM_IRQENABLE_MPU_2_OFFSET,
+					  OMAP4_PRM_IRQSTATUS_MPU_2_OFFSET);
+}
+
+/**
+ * omap44xx_prm_ocp_barrier - force buffered MPU writes to the PRM to complete
+ *
+ * Force any buffered writes to the PRM IP block to complete.  Needed
+ * by the PRM IRQ handler, which reads and writes directly to the IP
+ * block, to avoid race conditions after acknowledging or clearing IRQ
+ * bits.  No return value.
+ */
+void omap44xx_prm_ocp_barrier(void)
+{
+	omap4_prm_read_inst_reg(OMAP4430_PRM_DEVICE_INST,
+				OMAP4_REVISION_PRM_OFFSET);
+}
+
+/**
+ * omap44xx_prm_save_and_clear_irqen - save/clear PRM_IRQENABLE_MPU* regs
+ * @saved_mask: ptr to a u32 array to save IRQENABLE bits
+ *
+ * Save the PRM_IRQENABLE_MPU and PRM_IRQENABLE_MPU_2 registers to
+ * @saved_mask.  @saved_mask must be allocated by the caller.
+ * Intended to be used in the PRM interrupt handler suspend callback.
+ * The OCP barrier is needed to ensure the write to disable PRM
+ * interrupts reaches the PRM before returning; otherwise, spurious
+ * interrupts might occur.  No return value.
+ */
+void omap44xx_prm_save_and_clear_irqen(u32 *saved_mask)
+{
+	saved_mask[0] =
+		omap4_prm_read_inst_reg(OMAP4430_PRM_DEVICE_INST,
+					OMAP4_PRM_IRQSTATUS_MPU_OFFSET);
+	saved_mask[1] =
+		omap4_prm_read_inst_reg(OMAP4430_PRM_DEVICE_INST,
+					OMAP4_PRM_IRQSTATUS_MPU_2_OFFSET);
+
+	omap4_prm_write_inst_reg(0, OMAP4430_PRM_DEVICE_INST,
+				 OMAP4_PRM_IRQENABLE_MPU_OFFSET);
+	omap4_prm_write_inst_reg(0, OMAP4430_PRM_DEVICE_INST,
+				 OMAP4_PRM_IRQENABLE_MPU_2_OFFSET);
+
+	/* OCP barrier */
+	omap4_prm_read_inst_reg(OMAP4430_PRM_DEVICE_INST,
+				OMAP4_REVISION_PRM_OFFSET);
+}
+
+/**
+ * omap44xx_prm_restore_irqen - set PRM_IRQENABLE_MPU* registers from args
+ * @saved_mask: ptr to a u32 array of IRQENABLE bits saved previously
+ *
+ * Restore the PRM_IRQENABLE_MPU and PRM_IRQENABLE_MPU_2 registers from
+ * @saved_mask.  Intended to be used in the PRM interrupt handler resume
+ * callback to restore values saved by omap44xx_prm_save_and_clear_irqen().
+ * No OCP barrier should be needed here; any pending PRM interrupts will fire
+ * once the writes reach the PRM.  No return value.
+ */
+void omap44xx_prm_restore_irqen(u32 *saved_mask)
+{
+	omap4_prm_write_inst_reg(saved_mask[0], OMAP4430_PRM_DEVICE_INST,
+				 OMAP4_PRM_IRQENABLE_MPU_OFFSET);
+	omap4_prm_write_inst_reg(saved_mask[1], OMAP4430_PRM_DEVICE_INST,
+				 OMAP4_PRM_IRQENABLE_MPU_2_OFFSET);
+}
+
+static int __init omap4xxx_prcm_init(void)
+{
+	if (cpu_is_omap44xx())
+		return omap_prcm_register_chain_handler(&omap4_prcm_irq_setup);
+	return 0;
+}
+subsys_initcall(omap4xxx_prcm_init);
diff --git a/arch/arm/mach-omap2/prm44xx.h b/arch/arm/mach-omap2/prm44xx.h
index 3d66ccd849d2..7978092946db 100644
--- a/arch/arm/mach-omap2/prm44xx.h
+++ b/arch/arm/mach-omap2/prm44xx.h
@@ -1,7 +1,7 @@
 /*
  * OMAP44xx PRM instance offset macros
  *
- * Copyright (C) 2009-2010 Texas Instruments, Inc.
+ * Copyright (C) 2009-2011 Texas Instruments, Inc.
  * Copyright (C) 2009-2010 Nokia Corporation
  *
  * Paul Walmsley (paul@pwsan.com)
@@ -763,6 +763,12 @@ extern u32 omap4_prm_vcvp_read(u8 offset);
 extern void omap4_prm_vcvp_write(u32 val, u8 offset);
 extern u32 omap4_prm_vcvp_rmw(u32 mask, u32 bits, u8 offset);
 
+/* PRM interrupt-related functions */
+extern void omap44xx_prm_read_pending_irqs(unsigned long *events);
+extern void omap44xx_prm_ocp_barrier(void);
+extern void omap44xx_prm_save_and_clear_irqen(u32 *saved_mask);
+extern void omap44xx_prm_restore_irqen(u32 *saved_mask);
+
 # endif
 
 #endif
diff --git a/arch/arm/mach-omap2/prm_common.c b/arch/arm/mach-omap2/prm_common.c
new file mode 100644
index 000000000000..860118ab43e2
--- /dev/null
+++ b/arch/arm/mach-omap2/prm_common.c
@@ -0,0 +1,320 @@
+/*
+ * OMAP2+ common Power & Reset Management (PRM) IP block functions
+ *
+ * Copyright (C) 2011 Texas Instruments, Inc.
+ * Tero Kristo <t-kristo@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ *
+ * For historical purposes, the API used to configure the PRM
+ * interrupt handler refers to it as the "PRCM interrupt."  The
+ * underlying registers are located in the PRM on OMAP3/4.
+ *
+ * XXX This code should eventually be moved to a PRM driver.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/irq.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+
+#include <mach/system.h>
+#include <plat/common.h>
+#include <plat/prcm.h>
+#include <plat/irqs.h>
+
+#include "prm2xxx_3xxx.h"
+#include "prm44xx.h"
+
+/*
+ * OMAP_PRCM_MAX_NR_PENDING_REG: maximum number of PRM_IRQ*_MPU regs
+ * XXX this is technically not needed, since
+ * omap_prcm_register_chain_handler() could allocate this based on the
+ * actual amount of memory needed for the SoC
+ */
+#define OMAP_PRCM_MAX_NR_PENDING_REG		2
+
+/*
+ * prcm_irq_chips: an array of all of the "generic IRQ chips" in use
+ * by the PRCM interrupt handler code.  There will be one 'chip' per
+ * PRM_{IRQSTATUS,IRQENABLE}_MPU register pair.  (So OMAP3 will have
+ * one "chip" and OMAP4 will have two.)
+ */
+static struct irq_chip_generic **prcm_irq_chips;
+
+/*
+ * prcm_irq_setup: the PRCM IRQ parameters for the hardware the code
+ * is currently running on.  Defined and passed by initialization code
+ * that calls omap_prcm_register_chain_handler().
+ */
+static struct omap_prcm_irq_setup *prcm_irq_setup;
+
+/* Private functions */
+
+/*
+ * Move priority events from events to priority_events array
+ */
+static void omap_prcm_events_filter_priority(unsigned long *events,
+	unsigned long *priority_events)
+{
+	int i;
+
+	for (i = 0; i < prcm_irq_setup->nr_regs; i++) {
+		priority_events[i] =
+			events[i] & prcm_irq_setup->priority_mask[i];
+		events[i] ^= priority_events[i];
+	}
+}
+
+/*
+ * PRCM Interrupt Handler
+ *
+ * This is a common handler for the OMAP PRCM interrupts. Pending
+ * interrupts are detected by a call to prcm_pending_events and
+ * dispatched accordingly. Clearing of the wakeup events should be
+ * done by the SoC specific individual handlers.
+ */
+static void omap_prcm_irq_handler(unsigned int irq, struct irq_desc *desc)
+{
+	unsigned long pending[OMAP_PRCM_MAX_NR_PENDING_REG];
+	unsigned long priority_pending[OMAP_PRCM_MAX_NR_PENDING_REG];
+	struct irq_chip *chip = irq_desc_get_chip(desc);
+	unsigned int virtirq;
+	int nr_irqs = prcm_irq_setup->nr_regs * 32;
+
+	/*
+	 * If we are suspended, mask all interrupts from PRCM level,
+	 * this does not ack them, and they will be pending until we
+	 * re-enable the interrupts, at which point the
+	 * omap_prcm_irq_handler will be executed again.  The
+	 * _save_and_clear_irqen() function must ensure that the PRM
+	 * write to disable all IRQs has reached the PRM before
+	 * returning, or spurious PRCM interrupts may occur during
+	 * suspend.
+	 */
+	if (prcm_irq_setup->suspended) {
+		prcm_irq_setup->save_and_clear_irqen(prcm_irq_setup->saved_mask);
+		prcm_irq_setup->suspend_save_flag = true;
+	}
+
+	/*
+	 * Loop until all pending irqs are handled, since
+	 * generic_handle_irq() can cause new irqs to come
+	 */
+	while (!prcm_irq_setup->suspended) {
+		prcm_irq_setup->read_pending_irqs(pending);
+
+		/* No bit set, then all IRQs are handled */
+		if (find_first_bit(pending, nr_irqs) >= nr_irqs)
+			break;
+
+		omap_prcm_events_filter_priority(pending, priority_pending);
+
+		/*
+		 * Loop on all currently pending irqs so that new irqs
+		 * cannot starve previously pending irqs
+		 */
+
+		/* Serve priority events first */
+		for_each_set_bit(virtirq, priority_pending, nr_irqs)
+			generic_handle_irq(prcm_irq_setup->base_irq + virtirq);
+
+		/* Serve normal events next */
+		for_each_set_bit(virtirq, pending, nr_irqs)
+			generic_handle_irq(prcm_irq_setup->base_irq + virtirq);
+	}
+	if (chip->irq_ack)
+		chip->irq_ack(&desc->irq_data);
+	if (chip->irq_eoi)
+		chip->irq_eoi(&desc->irq_data);
+	chip->irq_unmask(&desc->irq_data);
+
+	prcm_irq_setup->ocp_barrier(); /* avoid spurious IRQs */
+}
+
+/* Public functions */
+
+/**
+ * omap_prcm_event_to_irq - given a PRCM event name, returns the
+ * corresponding IRQ on which the handler should be registered
+ * @name: name of the PRCM interrupt bit to look up - see struct omap_prcm_irq
+ *
+ * Returns the Linux internal IRQ ID corresponding to @name upon success,
+ * or -ENOENT upon failure.
+ */
+int omap_prcm_event_to_irq(const char *name)
+{
+	int i;
+
+	if (!prcm_irq_setup || !name)
+		return -ENOENT;
+
+	for (i = 0; i < prcm_irq_setup->nr_irqs; i++)
+		if (!strcmp(prcm_irq_setup->irqs[i].name, name))
+			return prcm_irq_setup->base_irq +
+				prcm_irq_setup->irqs[i].offset;
+
+	return -ENOENT;
+}
+
+/**
+ * omap_prcm_irq_cleanup - reverses memory allocated and other steps
+ * done by omap_prcm_register_chain_handler()
+ *
+ * No return value.
+ */
+void omap_prcm_irq_cleanup(void)
+{
+	int i;
+
+	if (!prcm_irq_setup) {
+		pr_err("PRCM: IRQ handler not initialized; cannot cleanup\n");
+		return;
+	}
+
+	if (prcm_irq_chips) {
+		for (i = 0; i < prcm_irq_setup->nr_regs; i++) {
+			if (prcm_irq_chips[i])
+				irq_remove_generic_chip(prcm_irq_chips[i],
+					0xffffffff, 0, 0);
+			prcm_irq_chips[i] = NULL;
+		}
+		kfree(prcm_irq_chips);
+		prcm_irq_chips = NULL;
+	}
+
+	kfree(prcm_irq_setup->saved_mask);
+	prcm_irq_setup->saved_mask = NULL;
+
+	kfree(prcm_irq_setup->priority_mask);
+	prcm_irq_setup->priority_mask = NULL;
+
+	irq_set_chained_handler(prcm_irq_setup->irq, NULL);
+
+	if (prcm_irq_setup->base_irq > 0)
+		irq_free_descs(prcm_irq_setup->base_irq,
+			prcm_irq_setup->nr_regs * 32);
+	prcm_irq_setup->base_irq = 0;
+}
+
+void omap_prcm_irq_prepare(void)
+{
+	prcm_irq_setup->suspended = true;
+}
+
+void omap_prcm_irq_complete(void)
+{
+	prcm_irq_setup->suspended = false;
+
+	/* If we have not saved the masks, do not attempt to restore */
+	if (!prcm_irq_setup->suspend_save_flag)
+		return;
+
+	prcm_irq_setup->suspend_save_flag = false;
+
+	/*
+	 * Re-enable all masked PRCM irq sources, this causes the PRCM
+	 * interrupt to fire immediately if the events were masked
+	 * previously in the chain handler
+	 */
+	prcm_irq_setup->restore_irqen(prcm_irq_setup->saved_mask);
+}
+
+/**
+ * omap_prcm_register_chain_handler - initializes the prcm chained interrupt
+ * handler based on provided parameters
+ * @irq_setup: hardware data about the underlying PRM/PRCM
+ *
+ * Set up the PRCM chained interrupt handler on the PRCM IRQ.  Sets up
+ * one generic IRQ chip per PRM interrupt status/enable register pair.
+ * Returns 0 upon success, -EINVAL if called twice or if invalid
+ * arguments are passed, or -ENOMEM on any other error.
+ */
+int omap_prcm_register_chain_handler(struct omap_prcm_irq_setup *irq_setup)
+{
+	int nr_regs = irq_setup->nr_regs;
+	u32 mask[OMAP_PRCM_MAX_NR_PENDING_REG];
+	int offset, i;
+	struct irq_chip_generic *gc;
+	struct irq_chip_type *ct;
+
+	if (!irq_setup)
+		return -EINVAL;
+
+	if (prcm_irq_setup) {
+		pr_err("PRCM: already initialized; won't reinitialize\n");
+		return -EINVAL;
+	}
+
+	if (nr_regs > OMAP_PRCM_MAX_NR_PENDING_REG) {
+		pr_err("PRCM: nr_regs too large\n");
+		return -EINVAL;
+	}
+
+	prcm_irq_setup = irq_setup;
+
+	prcm_irq_chips = kzalloc(sizeof(void *) * nr_regs, GFP_KERNEL);
+	prcm_irq_setup->saved_mask = kzalloc(sizeof(u32) * nr_regs, GFP_KERNEL);
+	prcm_irq_setup->priority_mask = kzalloc(sizeof(u32) * nr_regs,
+		GFP_KERNEL);
+
+	if (!prcm_irq_chips || !prcm_irq_setup->saved_mask ||
+	    !prcm_irq_setup->priority_mask) {
+		pr_err("PRCM: kzalloc failed\n");
+		goto err;
+	}
+
+	memset(mask, 0, sizeof(mask));
+
+	for (i = 0; i < irq_setup->nr_irqs; i++) {
+		offset = irq_setup->irqs[i].offset;
+		mask[offset >> 5] |= 1 << (offset & 0x1f);
+		if (irq_setup->irqs[i].priority)
+			irq_setup->priority_mask[offset >> 5] |=
+				1 << (offset & 0x1f);
+	}
+
+	irq_set_chained_handler(irq_setup->irq, omap_prcm_irq_handler);
+
+	irq_setup->base_irq = irq_alloc_descs(-1, 0, irq_setup->nr_regs * 32,
+		0);
+
+	if (irq_setup->base_irq < 0) {
+		pr_err("PRCM: failed to allocate irq descs: %d\n",
+			irq_setup->base_irq);
+		goto err;
+	}
+
+	for (i = 0; i <= irq_setup->nr_regs; i++) {
+		gc = irq_alloc_generic_chip("PRCM", 1,
+			irq_setup->base_irq + i * 32, prm_base,
+			handle_level_irq);
+
+		if (!gc) {
+			pr_err("PRCM: failed to allocate generic chip\n");
+			goto err;
+		}
+		ct = gc->chip_types;
+		ct->chip.irq_ack = irq_gc_ack_set_bit;
+		ct->chip.irq_mask = irq_gc_mask_clr_bit;
+		ct->chip.irq_unmask = irq_gc_mask_set_bit;
+
+		ct->regs.ack = irq_setup->ack + i * 4;
+		ct->regs.mask = irq_setup->mask + i * 4;
+
+		irq_setup_generic_chip(gc, mask[i], 0, IRQ_NOREQUEST, 0);
+		prcm_irq_chips[i] = gc;
+	}
+
+	return 0;
+
+err:
+	omap_prcm_irq_cleanup();
+	return -ENOMEM;
+}
diff --git a/arch/arm/mach-omap2/sdram-nokia.c b/arch/arm/mach-omap2/sdram-nokia.c
index ee3a8ad304cb..7479d7ea1379 100644
--- a/arch/arm/mach-omap2/sdram-nokia.c
+++ b/arch/arm/mach-omap2/sdram-nokia.c
@@ -1,7 +1,7 @@
 /*
  * SDRC register values for Nokia boards
  *
- * Copyright (C) 2008, 2010 Nokia Corporation
+ * Copyright (C) 2008, 2010-2011 Nokia Corporation
  *
  * Lauri Leukkunen <lauri.leukkunen@nokia.com>
  *
@@ -107,14 +107,37 @@ static const struct sdram_timings nokia_195dot2mhz_timings[] = {
 	},
 };
 
+static const struct sdram_timings nokia_200mhz_timings[] = {
+	{
+		.casl = 3,
+		.tDAL = 30000,
+		.tDPL = 15000,
+		.tRRD = 10000,
+		.tRCD = 20000,
+		.tRP = 15000,
+		.tRAS = 40000,
+		.tRC = 55000,
+		.tRFC = 140000,
+		.tXSR = 200000,
+
+		.tREF = 7800,
+
+		.tXP = 2,
+		.tCKE = 4,
+		.tWTR = 2
+	},
+};
+
 static const struct {
 	long rate;
 	struct sdram_timings const *data;
 } nokia_timings[] = {
 	{ 83000000, nokia_166mhz_timings },
 	{ 97600000, nokia_97dot6mhz_timings },
+	{ 100000000, nokia_200mhz_timings },
 	{ 166000000, nokia_166mhz_timings },
 	{ 195200000, nokia_195dot2mhz_timings },
+	{ 200000000, nokia_200mhz_timings },
 };
 static struct omap_sdrc_params nokia_sdrc_params[ARRAY_SIZE(nokia_timings) + 1];
 
diff --git a/arch/arm/mach-omap2/serial.c b/arch/arm/mach-omap2/serial.c
index 42c326732a29..247d89478f24 100644
--- a/arch/arm/mach-omap2/serial.c
+++ b/arch/arm/mach-omap2/serial.c
@@ -19,26 +19,21 @@
  */
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <linux/serial_reg.h>
 #include <linux/clk.h>
 #include <linux/io.h>
 #include <linux/delay.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
-#include <linux/serial_8250.h>
 #include <linux/pm_runtime.h>
 #include <linux/console.h>
 
-#ifdef CONFIG_SERIAL_OMAP
 #include <plat/omap-serial.h>
-#endif
-
 #include "common.h"
 #include <plat/board.h>
-#include <plat/clock.h>
 #include <plat/dma.h>
 #include <plat/omap_hwmod.h>
 #include <plat/omap_device.h>
+#include <plat/omap-pm.h>
 
 #include "prm2xxx_3xxx.h"
 #include "pm.h"
@@ -47,603 +42,226 @@
 #include "control.h"
 #include "mux.h"
 
-#define UART_OMAP_NO_EMPTY_FIFO_READ_IP_REV	0x52
-#define UART_OMAP_WER		0x17	/* Wake-up enable register */
-
-#define UART_ERRATA_FIFO_FULL_ABORT	(0x1 << 0)
-#define UART_ERRATA_i202_MDR1_ACCESS	(0x1 << 1)
-
 /*
- * NOTE: By default the serial timeout is disabled as it causes lost characters
- * over the serial ports. This means that the UART clocks will stay on until
- * disabled via sysfs. This also causes that any deeper omap sleep states are
- * blocked. 
+ * NOTE: By default the serial auto_suspend timeout is disabled as it causes
+ * lost characters over the serial ports. This means that the UART clocks will
+ * stay on until power/autosuspend_delay is set for the uart from sysfs.
+ * This also causes that any deeper omap sleep states are blocked.
  */
-#define DEFAULT_TIMEOUT 0
+#define DEFAULT_AUTOSUSPEND_DELAY	-1
 
 #define MAX_UART_HWMOD_NAME_LEN		16
 
 struct omap_uart_state {
 	int num;
 	int can_sleep;
-	struct timer_list timer;
-	u32 timeout;
-
-	void __iomem *wk_st;
-	void __iomem *wk_en;
-	u32 wk_mask;
-	u32 padconf;
-	u32 dma_enabled;
-
-	struct clk *ick;
-	struct clk *fck;
-	int clocked;
-
-	int irq;
-	int regshift;
-	int irqflags;
-	void __iomem *membase;
-	resource_size_t mapbase;
 
 	struct list_head node;
 	struct omap_hwmod *oh;
 	struct platform_device *pdev;
-
-	u32 errata;
-#if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_PM)
-	int context_valid;
-
-	/* Registers to be saved/restored for OFF-mode */
-	u16 dll;
-	u16 dlh;
-	u16 ier;
-	u16 sysc;
-	u16 scr;
-	u16 wer;
-	u16 mcr;
-#endif
 };
 
 static LIST_HEAD(uart_list);
 static u8 num_uarts;
+static u8 console_uart_id = -1;
+static u8 no_console_suspend;
+static u8 uart_debug;
+
+#define DEFAULT_RXDMA_POLLRATE		1	/* RX DMA polling rate (us) */
+#define DEFAULT_RXDMA_BUFSIZE		4096	/* RX DMA buffer size */
+#define DEFAULT_RXDMA_TIMEOUT		(3 * HZ)/* RX DMA timeout (jiffies) */
+
+static struct omap_uart_port_info omap_serial_default_info[] __initdata = {
+	{
+		.dma_enabled	= false,
+		.dma_rx_buf_size = DEFAULT_RXDMA_BUFSIZE,
+		.dma_rx_poll_rate = DEFAULT_RXDMA_POLLRATE,
+		.dma_rx_timeout = DEFAULT_RXDMA_TIMEOUT,
+		.autosuspend_timeout = DEFAULT_AUTOSUSPEND_DELAY,
+	},
+};
 
-static inline unsigned int __serial_read_reg(struct uart_port *up,
-					     int offset)
-{
-	offset <<= up->regshift;
-	return (unsigned int)__raw_readb(up->membase + offset);
-}
-
-static inline unsigned int serial_read_reg(struct omap_uart_state *uart,
-					   int offset)
+#ifdef CONFIG_PM
+static void omap_uart_enable_wakeup(struct platform_device *pdev, bool enable)
 {
-	offset <<= uart->regshift;
-	return (unsigned int)__raw_readb(uart->membase + offset);
-}
+	struct omap_device *od = to_omap_device(pdev);
 
-static inline void __serial_write_reg(struct uart_port *up, int offset,
-		int value)
-{
-	offset <<= up->regshift;
-	__raw_writeb(value, up->membase + offset);
-}
+	if (!od)
+		return;
 
-static inline void serial_write_reg(struct omap_uart_state *uart, int offset,
-				    int value)
-{
-	offset <<= uart->regshift;
-	__raw_writeb(value, uart->membase + offset);
+	if (enable)
+		omap_hwmod_enable_wakeup(od->hwmods[0]);
+	else
+		omap_hwmod_disable_wakeup(od->hwmods[0]);
 }
 
 /*
- * Internal UARTs need to be initialized for the 8250 autoconfig to work
- * properly. Note that the TX watermark initialization may not be needed
- * once the 8250.c watermark handling code is merged.
+ * Errata i291: [UART]:Cannot Acknowledge Idle Requests
+ * in Smartidle Mode When Configured for DMA Operations.
+ * WA: configure uart in force idle mode.
  */
-
-static inline void __init omap_uart_reset(struct omap_uart_state *uart)
+static void omap_uart_set_noidle(struct platform_device *pdev)
 {
-	serial_write_reg(uart, UART_OMAP_MDR1, UART_OMAP_MDR1_DISABLE);
-	serial_write_reg(uart, UART_OMAP_SCR, 0x08);
-	serial_write_reg(uart, UART_OMAP_MDR1, UART_OMAP_MDR1_16X_MODE);
-}
-
-#if defined(CONFIG_PM) && defined(CONFIG_ARCH_OMAP3)
+	struct omap_device *od = to_omap_device(pdev);
 
-/*
- * Work Around for Errata i202 (3430 - 1.12, 3630 - 1.6)
- * The access to uart register after MDR1 Access
- * causes UART to corrupt data.
- *
- * Need a delay =
- * 5 L4 clock cycles + 5 UART functional clock cycle (@48MHz = ~0.2uS)
- * give 10 times as much
- */
-static void omap_uart_mdr1_errataset(struct omap_uart_state *uart, u8 mdr1_val,
-		u8 fcr_val)
-{
-	u8 timeout = 255;
-
-	serial_write_reg(uart, UART_OMAP_MDR1, mdr1_val);
-	udelay(2);
-	serial_write_reg(uart, UART_FCR, fcr_val | UART_FCR_CLEAR_XMIT |
-			UART_FCR_CLEAR_RCVR);
-	/*
-	 * Wait for FIFO to empty: when empty, RX_FIFO_E bit is 0 and
-	 * TX_FIFO_E bit is 1.
-	 */
-	while (UART_LSR_THRE != (serial_read_reg(uart, UART_LSR) &
-				(UART_LSR_THRE | UART_LSR_DR))) {
-		timeout--;
-		if (!timeout) {
-			/* Should *never* happen. we warn and carry on */
-			dev_crit(&uart->pdev->dev, "Errata i202: timedout %x\n",
-			serial_read_reg(uart, UART_LSR));
-			break;
-		}
-		udelay(1);
-	}
+	omap_hwmod_set_slave_idlemode(od->hwmods[0], HWMOD_IDLEMODE_NO);
 }
 
-static void omap_uart_save_context(struct omap_uart_state *uart)
+static void omap_uart_set_forceidle(struct platform_device *pdev)
 {
-	u16 lcr = 0;
+	struct omap_device *od = to_omap_device(pdev);
 
-	if (!enable_off_mode)
-		return;
-
-	lcr = serial_read_reg(uart, UART_LCR);
-	serial_write_reg(uart, UART_LCR, UART_LCR_CONF_MODE_B);
-	uart->dll = serial_read_reg(uart, UART_DLL);
-	uart->dlh = serial_read_reg(uart, UART_DLM);
-	serial_write_reg(uart, UART_LCR, lcr);
-	uart->ier = serial_read_reg(uart, UART_IER);
-	uart->sysc = serial_read_reg(uart, UART_OMAP_SYSC);
-	uart->scr = serial_read_reg(uart, UART_OMAP_SCR);
-	uart->wer = serial_read_reg(uart, UART_OMAP_WER);
-	serial_write_reg(uart, UART_LCR, UART_LCR_CONF_MODE_A);
-	uart->mcr = serial_read_reg(uart, UART_MCR);
-	serial_write_reg(uart, UART_LCR, lcr);
-
-	uart->context_valid = 1;
+	omap_hwmod_set_slave_idlemode(od->hwmods[0], HWMOD_IDLEMODE_FORCE);
 }
 
-static void omap_uart_restore_context(struct omap_uart_state *uart)
-{
-	u16 efr = 0;
-
-	if (!enable_off_mode)
-		return;
-
-	if (!uart->context_valid)
-		return;
-
-	uart->context_valid = 0;
-
-	if (uart->errata & UART_ERRATA_i202_MDR1_ACCESS)
-		omap_uart_mdr1_errataset(uart, UART_OMAP_MDR1_DISABLE, 0xA0);
-	else
-		serial_write_reg(uart, UART_OMAP_MDR1, UART_OMAP_MDR1_DISABLE);
-
-	serial_write_reg(uart, UART_LCR, UART_LCR_CONF_MODE_B);
-	efr = serial_read_reg(uart, UART_EFR);
-	serial_write_reg(uart, UART_EFR, UART_EFR_ECB);
-	serial_write_reg(uart, UART_LCR, 0x0); /* Operational mode */
-	serial_write_reg(uart, UART_IER, 0x0);
-	serial_write_reg(uart, UART_LCR, UART_LCR_CONF_MODE_B);
-	serial_write_reg(uart, UART_DLL, uart->dll);
-	serial_write_reg(uart, UART_DLM, uart->dlh);
-	serial_write_reg(uart, UART_LCR, 0x0); /* Operational mode */
-	serial_write_reg(uart, UART_IER, uart->ier);
-	serial_write_reg(uart, UART_LCR, UART_LCR_CONF_MODE_A);
-	serial_write_reg(uart, UART_MCR, uart->mcr);
-	serial_write_reg(uart, UART_LCR, UART_LCR_CONF_MODE_B);
-	serial_write_reg(uart, UART_EFR, efr);
-	serial_write_reg(uart, UART_LCR, UART_LCR_WLEN8);
-	serial_write_reg(uart, UART_OMAP_SCR, uart->scr);
-	serial_write_reg(uart, UART_OMAP_WER, uart->wer);
-	serial_write_reg(uart, UART_OMAP_SYSC, uart->sysc);
-
-	if (uart->errata & UART_ERRATA_i202_MDR1_ACCESS)
-		omap_uart_mdr1_errataset(uart, UART_OMAP_MDR1_16X_MODE, 0xA1);
-	else
-		/* UART 16x mode */
-		serial_write_reg(uart, UART_OMAP_MDR1,
-				UART_OMAP_MDR1_16X_MODE);
-}
 #else
-static inline void omap_uart_save_context(struct omap_uart_state *uart) {}
-static inline void omap_uart_restore_context(struct omap_uart_state *uart) {}
-#endif /* CONFIG_PM && CONFIG_ARCH_OMAP3 */
-
-static inline void omap_uart_enable_clocks(struct omap_uart_state *uart)
-{
-	if (uart->clocked)
-		return;
-
-	omap_device_enable(uart->pdev);
-	uart->clocked = 1;
-	omap_uart_restore_context(uart);
-}
-
-#ifdef CONFIG_PM
-
-static inline void omap_uart_disable_clocks(struct omap_uart_state *uart)
-{
-	if (!uart->clocked)
-		return;
-
-	omap_uart_save_context(uart);
-	uart->clocked = 0;
-	omap_device_idle(uart->pdev);
-}
-
-static void omap_uart_enable_wakeup(struct omap_uart_state *uart)
-{
-	/* Set wake-enable bit */
-	if (uart->wk_en && uart->wk_mask) {
-		u32 v = __raw_readl(uart->wk_en);
-		v |= uart->wk_mask;
-		__raw_writel(v, uart->wk_en);
-	}
-
-	/* Ensure IOPAD wake-enables are set */
-	if (cpu_is_omap34xx() && uart->padconf) {
-		u16 v = omap_ctrl_readw(uart->padconf);
-		v |= OMAP3_PADCONF_WAKEUPENABLE0;
-		omap_ctrl_writew(v, uart->padconf);
-	}
-}
-
-static void omap_uart_disable_wakeup(struct omap_uart_state *uart)
-{
-	/* Clear wake-enable bit */
-	if (uart->wk_en && uart->wk_mask) {
-		u32 v = __raw_readl(uart->wk_en);
-		v &= ~uart->wk_mask;
-		__raw_writel(v, uart->wk_en);
-	}
-
-	/* Ensure IOPAD wake-enables are cleared */
-	if (cpu_is_omap34xx() && uart->padconf) {
-		u16 v = omap_ctrl_readw(uart->padconf);
-		v &= ~OMAP3_PADCONF_WAKEUPENABLE0;
-		omap_ctrl_writew(v, uart->padconf);
-	}
-}
-
-static void omap_uart_smart_idle_enable(struct omap_uart_state *uart,
-					       int enable)
-{
-	u8 idlemode;
-
-	if (enable) {
-		/**
-		 * Errata 2.15: [UART]:Cannot Acknowledge Idle Requests
-		 * in Smartidle Mode When Configured for DMA Operations.
-		 */
-		if (uart->dma_enabled)
-			idlemode = HWMOD_IDLEMODE_FORCE;
-		else
-			idlemode = HWMOD_IDLEMODE_SMART;
-	} else {
-		idlemode = HWMOD_IDLEMODE_NO;
-	}
-
-	omap_hwmod_set_slave_idlemode(uart->oh, idlemode);
-}
-
-static void omap_uart_block_sleep(struct omap_uart_state *uart)
-{
-	omap_uart_enable_clocks(uart);
-
-	omap_uart_smart_idle_enable(uart, 0);
-	uart->can_sleep = 0;
-	if (uart->timeout)
-		mod_timer(&uart->timer, jiffies + uart->timeout);
-	else
-		del_timer(&uart->timer);
-}
-
-static void omap_uart_allow_sleep(struct omap_uart_state *uart)
-{
-	if (device_may_wakeup(&uart->pdev->dev))
-		omap_uart_enable_wakeup(uart);
-	else
-		omap_uart_disable_wakeup(uart);
-
-	if (!uart->clocked)
-		return;
-
-	omap_uart_smart_idle_enable(uart, 1);
-	uart->can_sleep = 1;
-	del_timer(&uart->timer);
-}
-
-static void omap_uart_idle_timer(unsigned long data)
-{
-	struct omap_uart_state *uart = (struct omap_uart_state *)data;
-
-	omap_uart_allow_sleep(uart);
-}
-
-void omap_uart_prepare_idle(int num)
-{
-	struct omap_uart_state *uart;
-
-	list_for_each_entry(uart, &uart_list, node) {
-		if (num == uart->num && uart->can_sleep) {
-			omap_uart_disable_clocks(uart);
-			return;
-		}
-	}
-}
-
-void omap_uart_resume_idle(int num)
-{
-	struct omap_uart_state *uart;
-
-	list_for_each_entry(uart, &uart_list, node) {
-		if (num == uart->num && uart->can_sleep) {
-			omap_uart_enable_clocks(uart);
-
-			/* Check for IO pad wakeup */
-			if (cpu_is_omap34xx() && uart->padconf) {
-				u16 p = omap_ctrl_readw(uart->padconf);
-
-				if (p & OMAP3_PADCONF_WAKEUPEVENT0)
-					omap_uart_block_sleep(uart);
-			}
-
-			/* Check for normal UART wakeup */
-			if (__raw_readl(uart->wk_st) & uart->wk_mask)
-				omap_uart_block_sleep(uart);
-			return;
-		}
-	}
-}
-
-void omap_uart_prepare_suspend(void)
-{
-	struct omap_uart_state *uart;
-
-	list_for_each_entry(uart, &uart_list, node) {
-		omap_uart_allow_sleep(uart);
-	}
-}
-
-int omap_uart_can_sleep(void)
-{
-	struct omap_uart_state *uart;
-	int can_sleep = 1;
-
-	list_for_each_entry(uart, &uart_list, node) {
-		if (!uart->clocked)
-			continue;
-
-		if (!uart->can_sleep) {
-			can_sleep = 0;
-			continue;
-		}
-
-		/* This UART can now safely sleep. */
-		omap_uart_allow_sleep(uart);
-	}
-
-	return can_sleep;
-}
+static void omap_uart_enable_wakeup(struct platform_device *pdev, bool enable)
+{}
+static void omap_uart_set_noidle(struct platform_device *pdev) {}
+static void omap_uart_set_forceidle(struct platform_device *pdev) {}
+#endif /* CONFIG_PM */
 
-/**
- * omap_uart_interrupt()
- *
- * This handler is used only to detect that *any* UART interrupt has
- * occurred.  It does _nothing_ to handle the interrupt.  Rather,
- * any UART interrupt will trigger the inactivity timer so the
- * UART will not idle or sleep for its timeout period.
- *
- **/
-/* static int first_interrupt; */
-static irqreturn_t omap_uart_interrupt(int irq, void *dev_id)
-{
-	struct omap_uart_state *uart = dev_id;
+#ifdef CONFIG_OMAP_MUX
+static struct omap_device_pad default_uart1_pads[] __initdata = {
+	{
+		.name	= "uart1_cts.uart1_cts",
+		.enable	= OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0,
+	},
+	{
+		.name	= "uart1_rts.uart1_rts",
+		.enable	= OMAP_PIN_OUTPUT | OMAP_MUX_MODE0,
+	},
+	{
+		.name	= "uart1_tx.uart1_tx",
+		.enable	= OMAP_PIN_OUTPUT | OMAP_MUX_MODE0,
+	},
+	{
+		.name	= "uart1_rx.uart1_rx",
+		.flags	= OMAP_DEVICE_PAD_REMUX | OMAP_DEVICE_PAD_WAKEUP,
+		.enable	= OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0,
+		.idle	= OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0,
+	},
+};
 
-	omap_uart_block_sleep(uart);
+static struct omap_device_pad default_uart2_pads[] __initdata = {
+	{
+		.name	= "uart2_cts.uart2_cts",
+		.enable	= OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0,
+	},
+	{
+		.name	= "uart2_rts.uart2_rts",
+		.enable	= OMAP_PIN_OUTPUT | OMAP_MUX_MODE0,
+	},
+	{
+		.name	= "uart2_tx.uart2_tx",
+		.enable	= OMAP_PIN_OUTPUT | OMAP_MUX_MODE0,
+	},
+	{
+		.name	= "uart2_rx.uart2_rx",
+		.flags	= OMAP_DEVICE_PAD_REMUX | OMAP_DEVICE_PAD_WAKEUP,
+		.enable	= OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0,
+		.idle	= OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0,
+	},
+};
 
-	return IRQ_NONE;
-}
+static struct omap_device_pad default_uart3_pads[] __initdata = {
+	{
+		.name	= "uart3_cts_rctx.uart3_cts_rctx",
+		.enable	= OMAP_PIN_INPUT_PULLUP | OMAP_MUX_MODE0,
+	},
+	{
+		.name	= "uart3_rts_sd.uart3_rts_sd",
+		.enable	= OMAP_PIN_OUTPUT | OMAP_MUX_MODE0,
+	},
+	{
+		.name	= "uart3_tx_irtx.uart3_tx_irtx",
+		.enable	= OMAP_PIN_OUTPUT | OMAP_MUX_MODE0,
+	},
+	{
+		.name	= "uart3_rx_irrx.uart3_rx_irrx",
+		.flags	= OMAP_DEVICE_PAD_REMUX | OMAP_DEVICE_PAD_WAKEUP,
+		.enable	= OMAP_PIN_INPUT | OMAP_MUX_MODE0,
+		.idle	= OMAP_PIN_INPUT | OMAP_MUX_MODE0,
+	},
+};
 
-static void omap_uart_idle_init(struct omap_uart_state *uart)
-{
-	int ret;
-
-	uart->can_sleep = 0;
-	uart->timeout = DEFAULT_TIMEOUT;
-	setup_timer(&uart->timer, omap_uart_idle_timer,
-		    (unsigned long) uart);
-	if (uart->timeout)
-		mod_timer(&uart->timer, jiffies + uart->timeout);
-	omap_uart_smart_idle_enable(uart, 0);
-
-	if (cpu_is_omap34xx() && !cpu_is_ti816x()) {
-		u32 mod = (uart->num > 1) ? OMAP3430_PER_MOD : CORE_MOD;
-		u32 wk_mask = 0;
-		u32 padconf = 0;
-
-		/* XXX These PRM accesses do not belong here */
-		uart->wk_en = OMAP34XX_PRM_REGADDR(mod, PM_WKEN1);
-		uart->wk_st = OMAP34XX_PRM_REGADDR(mod, PM_WKST1);
-		switch (uart->num) {
-		case 0:
-			wk_mask = OMAP3430_ST_UART1_MASK;
-			padconf = 0x182;
-			break;
-		case 1:
-			wk_mask = OMAP3430_ST_UART2_MASK;
-			padconf = 0x17a;
-			break;
-		case 2:
-			wk_mask = OMAP3430_ST_UART3_MASK;
-			padconf = 0x19e;
-			break;
-		case 3:
-			wk_mask = OMAP3630_ST_UART4_MASK;
-			padconf = 0x0d2;
-			break;
-		}
-		uart->wk_mask = wk_mask;
-		uart->padconf = padconf;
-	} else if (cpu_is_omap24xx()) {
-		u32 wk_mask = 0;
-		u32 wk_en = PM_WKEN1, wk_st = PM_WKST1;
-
-		switch (uart->num) {
-		case 0:
-			wk_mask = OMAP24XX_ST_UART1_MASK;
-			break;
-		case 1:
-			wk_mask = OMAP24XX_ST_UART2_MASK;
-			break;
-		case 2:
-			wk_en = OMAP24XX_PM_WKEN2;
-			wk_st = OMAP24XX_PM_WKST2;
-			wk_mask = OMAP24XX_ST_UART3_MASK;
-			break;
-		}
-		uart->wk_mask = wk_mask;
-		if (cpu_is_omap2430()) {
-			uart->wk_en = OMAP2430_PRM_REGADDR(CORE_MOD, wk_en);
-			uart->wk_st = OMAP2430_PRM_REGADDR(CORE_MOD, wk_st);
-		} else if (cpu_is_omap2420()) {
-			uart->wk_en = OMAP2420_PRM_REGADDR(CORE_MOD, wk_en);
-			uart->wk_st = OMAP2420_PRM_REGADDR(CORE_MOD, wk_st);
-		}
-	} else {
-		uart->wk_en = NULL;
-		uart->wk_st = NULL;
-		uart->wk_mask = 0;
-		uart->padconf = 0;
-	}
+static struct omap_device_pad default_omap36xx_uart4_pads[] __initdata = {
+	{
+		.name   = "gpmc_wait2.uart4_tx",
+		.enable = OMAP_PIN_OUTPUT | OMAP_MUX_MODE0,
+	},
+	{
+		.name	= "gpmc_wait3.uart4_rx",
+		.flags	= OMAP_DEVICE_PAD_REMUX | OMAP_DEVICE_PAD_WAKEUP,
+		.enable	= OMAP_PIN_INPUT | OMAP_MUX_MODE2,
+		.idle	= OMAP_PIN_INPUT | OMAP_MUX_MODE2,
+	},
+};
 
-	uart->irqflags |= IRQF_SHARED;
-	ret = request_threaded_irq(uart->irq, NULL, omap_uart_interrupt,
-				   IRQF_SHARED, "serial idle", (void *)uart);
-	WARN_ON(ret);
-}
+static struct omap_device_pad default_omap4_uart4_pads[] __initdata = {
+	{
+		.name	= "uart4_tx.uart4_tx",
+		.enable	= OMAP_PIN_OUTPUT | OMAP_MUX_MODE0,
+	},
+	{
+		.name	= "uart4_rx.uart4_rx",
+		.flags	= OMAP_DEVICE_PAD_REMUX | OMAP_DEVICE_PAD_WAKEUP,
+		.enable	= OMAP_PIN_INPUT | OMAP_MUX_MODE0,
+		.idle	= OMAP_PIN_INPUT | OMAP_MUX_MODE0,
+	},
+};
 
-void omap_uart_enable_irqs(int enable)
+static void omap_serial_fill_default_pads(struct omap_board_data *bdata)
 {
-	int ret;
-	struct omap_uart_state *uart;
-
-	list_for_each_entry(uart, &uart_list, node) {
-		if (enable) {
-			pm_runtime_put_sync(&uart->pdev->dev);
-			ret = request_threaded_irq(uart->irq, NULL,
-						   omap_uart_interrupt,
-						   IRQF_SHARED,
-						   "serial idle",
-						   (void *)uart);
-		} else {
-			pm_runtime_get_noresume(&uart->pdev->dev);
-			free_irq(uart->irq, (void *)uart);
+	switch (bdata->id) {
+	case 0:
+		bdata->pads = default_uart1_pads;
+		bdata->pads_cnt = ARRAY_SIZE(default_uart1_pads);
+		break;
+	case 1:
+		bdata->pads = default_uart2_pads;
+		bdata->pads_cnt = ARRAY_SIZE(default_uart2_pads);
+		break;
+	case 2:
+		bdata->pads = default_uart3_pads;
+		bdata->pads_cnt = ARRAY_SIZE(default_uart3_pads);
+		break;
+	case 3:
+		if (cpu_is_omap44xx()) {
+			bdata->pads = default_omap4_uart4_pads;
+			bdata->pads_cnt =
+				ARRAY_SIZE(default_omap4_uart4_pads);
+		} else if (cpu_is_omap3630()) {
+			bdata->pads = default_omap36xx_uart4_pads;
+			bdata->pads_cnt =
+				ARRAY_SIZE(default_omap36xx_uart4_pads);
 		}
+		break;
+	default:
+		break;
 	}
 }
-
-static ssize_t sleep_timeout_show(struct device *dev,
-				  struct device_attribute *attr,
-				  char *buf)
-{
-	struct platform_device *pdev = to_platform_device(dev);
-	struct omap_device *odev = to_omap_device(pdev);
-	struct omap_uart_state *uart = odev->hwmods[0]->dev_attr;
-
-	return sprintf(buf, "%u\n", uart->timeout / HZ);
-}
-
-static ssize_t sleep_timeout_store(struct device *dev,
-				   struct device_attribute *attr,
-				   const char *buf, size_t n)
-{
-	struct platform_device *pdev = to_platform_device(dev);
-	struct omap_device *odev = to_omap_device(pdev);
-	struct omap_uart_state *uart = odev->hwmods[0]->dev_attr;
-	unsigned int value;
-
-	if (sscanf(buf, "%u", &value) != 1) {
-		dev_err(dev, "sleep_timeout_store: Invalid value\n");
-		return -EINVAL;
-	}
-
-	uart->timeout = value * HZ;
-	if (uart->timeout)
-		mod_timer(&uart->timer, jiffies + uart->timeout);
-	else
-		/* A zero value means disable timeout feature */
-		omap_uart_block_sleep(uart);
-
-	return n;
-}
-
-static DEVICE_ATTR(sleep_timeout, 0644, sleep_timeout_show,
-		sleep_timeout_store);
-#define DEV_CREATE_FILE(dev, attr) WARN_ON(device_create_file(dev, attr))
 #else
-static inline void omap_uart_idle_init(struct omap_uart_state *uart) {}
-static void omap_uart_block_sleep(struct omap_uart_state *uart)
-{
-	/* Needed to enable UART clocks when built without CONFIG_PM */
-	omap_uart_enable_clocks(uart);
-}
-#define DEV_CREATE_FILE(dev, attr)
-#endif /* CONFIG_PM */
-
-#ifndef CONFIG_SERIAL_OMAP
-/*
- * Override the default 8250 read handler: mem_serial_in()
- * Empty RX fifo read causes an abort on omap3630 and omap4
- * This function makes sure that an empty rx fifo is not read on these silicons
- * (OMAP1/2/3430 are not affected)
- */
-static unsigned int serial_in_override(struct uart_port *up, int offset)
-{
-	if (UART_RX == offset) {
-		unsigned int lsr;
-		lsr = __serial_read_reg(up, UART_LSR);
-		if (!(lsr & UART_LSR_DR))
-			return -EPERM;
-	}
-
-	return __serial_read_reg(up, offset);
-}
+static void omap_serial_fill_default_pads(struct omap_board_data *bdata) {}
+#endif
 
-static void serial_out_override(struct uart_port *up, int offset, int value)
+char *cmdline_find_option(char *str)
 {
-	unsigned int status, tmout = 10000;
+	extern char *saved_command_line;
 
-	status = __serial_read_reg(up, UART_LSR);
-	while (!(status & UART_LSR_THRE)) {
-		/* Wait up to 10ms for the character(s) to be sent. */
-		if (--tmout == 0)
-			break;
-		udelay(1);
-		status = __serial_read_reg(up, UART_LSR);
-	}
-	__serial_write_reg(up, offset, value);
+	return strstr(saved_command_line, str);
 }
-#endif
 
 static int __init omap_serial_early_init(void)
 {
-	int i = 0;
-
 	do {
 		char oh_name[MAX_UART_HWMOD_NAME_LEN];
 		struct omap_hwmod *oh;
 		struct omap_uart_state *uart;
+		char uart_name[MAX_UART_HWMOD_NAME_LEN];
 
 		snprintf(oh_name, MAX_UART_HWMOD_NAME_LEN,
-			 "uart%d", i + 1);
+			 "uart%d", num_uarts + 1);
 		oh = omap_hwmod_lookup(oh_name);
 		if (!oh)
 			break;
@@ -653,21 +271,35 @@ static int __init omap_serial_early_init(void)
 			return -ENODEV;
 
 		uart->oh = oh;
-		uart->num = i++;
+		uart->num = num_uarts++;
 		list_add_tail(&uart->node, &uart_list);
-		num_uarts++;
-
-		/*
-		 * NOTE: omap_hwmod_setup*() has not yet been called,
-		 *       so no hwmod functions will work yet.
-		 */
-
-		/*
-		 * During UART early init, device need to be probed
-		 * to determine SoC specific init before omap_device
-		 * is ready.  Therefore, don't allow idle here
-		 */
-		uart->oh->flags |= HWMOD_INIT_NO_IDLE | HWMOD_INIT_NO_RESET;
+		snprintf(uart_name, MAX_UART_HWMOD_NAME_LEN,
+				"%s%d", OMAP_SERIAL_NAME, uart->num);
+
+		if (cmdline_find_option(uart_name)) {
+			console_uart_id = uart->num;
+
+			if (console_loglevel >= 10) {
+				uart_debug = true;
+				pr_info("%s used as console in debug mode"
+						" uart%d clocks will not be"
+						" gated", uart_name, uart->num);
+			}
+
+			if (cmdline_find_option("no_console_suspend"))
+				no_console_suspend = true;
+
+			/*
+			 * omap-uart can be used for earlyprintk logs
+			 * So if omap-uart is used as console then prevent
+			 * uart reset and idle to get logs from omap-uart
+			 * until uart console driver is available to take
+			 * care for console messages.
+			 * Idling or resetting omap-uart while printing logs
+			 * early boot logs can stall the boot-up.
+			 */
+			oh->flags |= HWMOD_INIT_NO_IDLE | HWMOD_INIT_NO_RESET;
+		}
 	} while (1);
 
 	return 0;
@@ -677,6 +309,7 @@ core_initcall(omap_serial_early_init);
 /**
  * omap_serial_init_port() - initialize single serial port
  * @bdata: port specific board data pointer
+ * @info: platform specific data pointer
  *
  * This function initialies serial driver for given port only.
  * Platforms can call this function instead of omap_serial_init()
@@ -685,7 +318,8 @@ core_initcall(omap_serial_early_init);
  * Don't mix calls to omap_serial_init_port() and omap_serial_init(),
  * use only one of the two.
  */
-void __init omap_serial_init_port(struct omap_board_data *bdata)
+void __init omap_serial_init_port(struct omap_board_data *bdata,
+			struct omap_uart_port_info *info)
 {
 	struct omap_uart_state *uart;
 	struct omap_hwmod *oh;
@@ -693,15 +327,7 @@ void __init omap_serial_init_port(struct omap_board_data *bdata)
 	void *pdata = NULL;
 	u32 pdata_size = 0;
 	char *name;
-#ifndef CONFIG_SERIAL_OMAP
-	struct plat_serial8250_port ports[2] = {
-		{},
-		{.flags = 0},
-	};
-	struct plat_serial8250_port *p = &ports[0];
-#else
 	struct omap_uart_port_info omap_up;
-#endif
 
 	if (WARN_ON(!bdata))
 		return;
@@ -713,66 +339,34 @@ void __init omap_serial_init_port(struct omap_board_data *bdata)
 	list_for_each_entry(uart, &uart_list, node)
 		if (bdata->id == uart->num)
 			break;
+	if (!info)
+		info = omap_serial_default_info;
 
 	oh = uart->oh;
-	uart->dma_enabled = 0;
-#ifndef CONFIG_SERIAL_OMAP
-	name = "serial8250";
-
-	/*
-	 * !! 8250 driver does not use standard IORESOURCE* It
-	 * has it's own custom pdata that can be taken from
-	 * the hwmod resource data.  But, this needs to be
-	 * done after the build.
-	 *
-	 * ?? does it have to be done before the register ??
-	 * YES, because platform_device_data_add() copies
-	 * pdata, it does not use a pointer.
-	 */
-	p->flags = UPF_BOOT_AUTOCONF;
-	p->iotype = UPIO_MEM;
-	p->regshift = 2;
-	p->uartclk = OMAP24XX_BASE_BAUD * 16;
-	p->irq = oh->mpu_irqs[0].irq;
-	p->mapbase = oh->slaves[0]->addr->pa_start;
-	p->membase = omap_hwmod_get_mpu_rt_va(oh);
-	p->irqflags = IRQF_SHARED;
-	p->private_data = uart;
-
-	/*
-	 * omap44xx, ti816x: Never read empty UART fifo
-	 * omap3xxx: Never read empty UART fifo on UARTs
-	 * with IP rev >=0x52
-	 */
-	uart->regshift = p->regshift;
-	uart->membase = p->membase;
-	if (cpu_is_omap44xx() || cpu_is_ti816x())
-		uart->errata |= UART_ERRATA_FIFO_FULL_ABORT;
-	else if ((serial_read_reg(uart, UART_OMAP_MVER) & 0xFF)
-			>= UART_OMAP_NO_EMPTY_FIFO_READ_IP_REV)
-		uart->errata |= UART_ERRATA_FIFO_FULL_ABORT;
-
-	if (uart->errata & UART_ERRATA_FIFO_FULL_ABORT) {
-		p->serial_in = serial_in_override;
-		p->serial_out = serial_out_override;
-	}
-
-	pdata = &ports[0];
-	pdata_size = 2 * sizeof(struct plat_serial8250_port);
-#else
-
 	name = DRIVER_NAME;
 
-	omap_up.dma_enabled = uart->dma_enabled;
+	omap_up.dma_enabled = info->dma_enabled;
 	omap_up.uartclk = OMAP24XX_BASE_BAUD * 16;
-	omap_up.mapbase = oh->slaves[0]->addr->pa_start;
-	omap_up.membase = omap_hwmod_get_mpu_rt_va(oh);
-	omap_up.irqflags = IRQF_SHARED;
-	omap_up.flags = UPF_BOOT_AUTOCONF | UPF_SHARE_IRQ;
+	omap_up.flags = UPF_BOOT_AUTOCONF;
+	omap_up.get_context_loss_count = omap_pm_get_dev_context_loss_count;
+	omap_up.set_forceidle = omap_uart_set_forceidle;
+	omap_up.set_noidle = omap_uart_set_noidle;
+	omap_up.enable_wakeup = omap_uart_enable_wakeup;
+	omap_up.dma_rx_buf_size = info->dma_rx_buf_size;
+	omap_up.dma_rx_timeout = info->dma_rx_timeout;
+	omap_up.dma_rx_poll_rate = info->dma_rx_poll_rate;
+	omap_up.autosuspend_timeout = info->autosuspend_timeout;
+
+	/* Enable the MDR1 Errata i202 for OMAP2430/3xxx/44xx */
+	if (!cpu_is_omap2420() && !cpu_is_ti816x())
+		omap_up.errata |= UART_ERRATA_i202_MDR1_ACCESS;
+
+	/* Enable DMA Mode Force Idle Errata i291 for omap34xx/3630 */
+	if (cpu_is_omap34xx() || cpu_is_omap3630())
+		omap_up.errata |= UART_ERRATA_i291_DMA_FORCEIDLE;
 
 	pdata = &omap_up;
 	pdata_size = sizeof(struct omap_uart_port_info);
-#endif
 
 	if (WARN_ON(!oh))
 		return;
@@ -782,64 +376,29 @@ void __init omap_serial_init_port(struct omap_board_data *bdata)
 	WARN(IS_ERR(pdev), "Could not build omap_device for %s: %s.\n",
 	     name, oh->name);
 
-	omap_device_disable_idle_on_suspend(pdev);
+	if ((console_uart_id == bdata->id) && no_console_suspend)
+		omap_device_disable_idle_on_suspend(pdev);
+
 	oh->mux = omap_hwmod_mux_init(bdata->pads, bdata->pads_cnt);
 
-	uart->irq = oh->mpu_irqs[0].irq;
-	uart->regshift = 2;
-	uart->mapbase = oh->slaves[0]->addr->pa_start;
-	uart->membase = omap_hwmod_get_mpu_rt_va(oh);
 	uart->pdev = pdev;
 
 	oh->dev_attr = uart;
 
-	console_lock(); /* in case the earlycon is on the UART */
-
-	/*
-	 * Because of early UART probing, UART did not get idled
-	 * on init.  Now that omap_device is ready, ensure full idle
-	 * before doing omap_device_enable().
-	 */
-	omap_hwmod_idle(uart->oh);
-
-	omap_device_enable(uart->pdev);
-	omap_uart_idle_init(uart);
-	omap_uart_reset(uart);
-	omap_hwmod_enable_wakeup(uart->oh);
-	omap_device_idle(uart->pdev);
-
-	/*
-	 * Need to block sleep long enough for interrupt driven
-	 * driver to start.  Console driver is in polling mode
-	 * so device needs to be kept enabled while polling driver
-	 * is in use.
-	 */
-	if (uart->timeout)
-		uart->timeout = (30 * HZ);
-	omap_uart_block_sleep(uart);
-	uart->timeout = DEFAULT_TIMEOUT;
-
-	console_unlock();
-
-	if ((cpu_is_omap34xx() && uart->padconf) ||
-	    (uart->wk_en && uart->wk_mask)) {
+	if (((cpu_is_omap34xx() || cpu_is_omap44xx()) && bdata->pads)
+			&& !uart_debug)
 		device_init_wakeup(&pdev->dev, true);
-		DEV_CREATE_FILE(&pdev->dev, &dev_attr_sleep_timeout);
-	}
-
-	/* Enable the MDR1 errata for OMAP3 */
-	if (cpu_is_omap34xx() && !cpu_is_ti816x())
-		uart->errata |= UART_ERRATA_i202_MDR1_ACCESS;
 }
 
 /**
- * omap_serial_init() - initialize all supported serial ports
+ * omap_serial_board_init() - initialize all supported serial ports
+ * @info: platform specific data pointer
  *
  * Initializes all available UARTs as serial ports. Platforms
  * can call this function when they want to have default behaviour
  * for serial ports (e.g initialize them all as serial ports).
  */
-void __init omap_serial_init(void)
+void __init omap_serial_board_init(struct omap_uart_port_info *info)
 {
 	struct omap_uart_state *uart;
 	struct omap_board_data bdata;
@@ -849,7 +408,25 @@ void __init omap_serial_init(void)
 		bdata.flags = 0;
 		bdata.pads = NULL;
 		bdata.pads_cnt = 0;
-		omap_serial_init_port(&bdata);
 
+		if (cpu_is_omap44xx() || cpu_is_omap34xx())
+			omap_serial_fill_default_pads(&bdata);
+
+		if (!info)
+			omap_serial_init_port(&bdata, NULL);
+		else
+			omap_serial_init_port(&bdata, &info[uart->num]);
 	}
 }
+
+/**
+ * omap_serial_init() - initialize all supported serial ports
+ *
+ * Initializes all available UARTs.
+ * Platforms can call this function when they want to have default behaviour
+ * for serial ports (e.g initialize them all as serial ports).
+ */
+void __init omap_serial_init(void)
+{
+	omap_serial_board_init(NULL);
+}
diff --git a/arch/arm/mach-omap2/sleep44xx.S b/arch/arm/mach-omap2/sleep44xx.S
new file mode 100644
index 000000000000..abd283400490
--- /dev/null
+++ b/arch/arm/mach-omap2/sleep44xx.S
@@ -0,0 +1,379 @@
+/*
+ * OMAP44xx sleep code.
+ *
+ * Copyright (C) 2011 Texas Instruments, Inc.
+ * 	Santosh Shilimkar <santosh.shilimkar@ti.com>
+ *
+ * This program is free software,you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/linkage.h>
+#include <asm/system.h>
+#include <asm/smp_scu.h>
+#include <asm/memory.h>
+#include <asm/hardware/cache-l2x0.h>
+
+#include <plat/omap44xx.h>
+#include <mach/omap-secure.h>
+
+#include "common.h"
+#include "omap4-sar-layout.h"
+
+#if defined(CONFIG_SMP) && defined(CONFIG_PM)
+
+.macro	DO_SMC
+	dsb
+	smc	#0
+	dsb
+.endm
+
+ppa_zero_params:
+	.word		0x0
+
+ppa_por_params:
+	.word		1, 0
+
+/*
+ * =============================
+ * == CPU suspend finisher ==
+ * =============================
+ *
+ * void omap4_finish_suspend(unsigned long cpu_state)
+ *
+ * This function code saves the CPU context and performs the CPU
+ * power down sequence. Calling WFI effectively changes the CPU
+ * power domains states to the desired target power state.
+ *
+ * @cpu_state : contains context save state (r0)
+ *	0 - No context lost
+ * 	1 - CPUx L1 and logic lost: MPUSS CSWR
+ * 	2 - CPUx L1 and logic lost + GIC lost: MPUSS OSWR
+ *	3 - CPUx L1 and logic lost + GIC + L2 lost: MPUSS OFF
+ * @return: This function never returns for CPU OFF and DORMANT power states.
+ * Post WFI, CPU transitions to DORMANT or OFF power state and on wake-up
+ * from this follows a full CPU reset path via ROM code to CPU restore code.
+ * The restore function pointer is stored at CPUx_WAKEUP_NS_PA_ADDR_OFFSET.
+ * It returns to the caller for CPU INACTIVE and ON power states or in case
+ * CPU failed to transition to targeted OFF/DORMANT state.
+ */
+ENTRY(omap4_finish_suspend)
+	stmfd	sp!, {lr}
+	cmp	r0, #0x0
+	beq	do_WFI				@ No lowpower state, jump to WFI
+
+	/*
+	 * Flush all data from the L1 data cache before disabling
+	 * SCTLR.C bit.
+	 */
+	bl	omap4_get_sar_ram_base
+	ldr	r9, [r0, #OMAP_TYPE_OFFSET]
+	cmp	r9, #0x1			@ Check for HS device
+	bne	skip_secure_l1_clean
+	mov	r0, #SCU_PM_NORMAL
+	mov	r1, #0xFF			@ clean seucre L1
+	stmfd   r13!, {r4-r12, r14}
+	ldr	r12, =OMAP4_MON_SCU_PWR_INDEX
+	DO_SMC
+	ldmfd   r13!, {r4-r12, r14}
+skip_secure_l1_clean:
+	bl	v7_flush_dcache_all
+
+	/*
+	 * Clear the SCTLR.C bit to prevent further data cache
+	 * allocation. Clearing SCTLR.C would make all the data accesses
+	 * strongly ordered and would not hit the cache.
+	 */
+	mrc	p15, 0, r0, c1, c0, 0
+	bic	r0, r0, #(1 << 2)		@ Disable the C bit
+	mcr	p15, 0, r0, c1, c0, 0
+	isb
+
+	/*
+	 * Invalidate L1 data cache. Even though only invalidate is
+	 * necessary exported flush API is used here. Doing clean
+	 * on already clean cache would be almost NOP.
+	 */
+	bl	v7_flush_dcache_all
+
+	/*
+	 * Switch the CPU from Symmetric Multiprocessing (SMP) mode
+	 * to AsymmetricMultiprocessing (AMP) mode by programming
+	 * the SCU power status to DORMANT or OFF mode.
+	 * This enables the CPU to be taken out of coherency by
+	 * preventing the CPU from receiving cache, TLB, or BTB
+	 * maintenance operations broadcast by other CPUs in the cluster.
+	 */
+	bl	omap4_get_sar_ram_base
+	mov	r8, r0
+	ldr	r9, [r8, #OMAP_TYPE_OFFSET]
+	cmp	r9, #0x1			@ Check for HS device
+	bne	scu_gp_set
+	mrc	p15, 0, r0, c0, c0, 5		@ Read MPIDR
+	ands	r0, r0, #0x0f
+	ldreq	r0, [r8, #SCU_OFFSET0]
+	ldrne	r0, [r8, #SCU_OFFSET1]
+	mov	r1, #0x00
+	stmfd   r13!, {r4-r12, r14}
+	ldr	r12, =OMAP4_MON_SCU_PWR_INDEX
+	DO_SMC
+	ldmfd   r13!, {r4-r12, r14}
+	b	skip_scu_gp_set
+scu_gp_set:
+	mrc	p15, 0, r0, c0, c0, 5		@ Read MPIDR
+	ands	r0, r0, #0x0f
+	ldreq	r1, [r8, #SCU_OFFSET0]
+	ldrne	r1, [r8, #SCU_OFFSET1]
+	bl	omap4_get_scu_base
+	bl	scu_power_mode
+skip_scu_gp_set:
+	mrc	p15, 0, r0, c1, c1, 2		@ Read NSACR data
+	tst	r0, #(1 << 18)
+	mrcne	p15, 0, r0, c1, c0, 1
+	bicne	r0, r0, #(1 << 6)		@ Disable SMP bit
+	mcrne	p15, 0, r0, c1, c0, 1
+	isb
+	dsb
+#ifdef CONFIG_CACHE_L2X0
+	/*
+	 * Clean and invalidate the L2 cache.
+	 * Common cache-l2x0.c functions can't be used here since it
+	 * uses spinlocks. We are out of coherency here with data cache
+	 * disabled. The spinlock implementation uses exclusive load/store
+	 * instruction which can fail without data cache being enabled.
+	 * OMAP4 hardware doesn't support exclusive monitor which can
+	 * overcome exclusive access issue. Because of this, CPU can
+	 * lead to deadlock.
+	 */
+	bl	omap4_get_sar_ram_base
+	mov	r8, r0
+	mrc	p15, 0, r5, c0, c0, 5		@ Read MPIDR
+	ands	r5, r5, #0x0f
+	ldreq	r0, [r8, #L2X0_SAVE_OFFSET0]	@ Retrieve L2 state from SAR
+	ldrne	r0, [r8, #L2X0_SAVE_OFFSET1]	@ memory.
+	cmp	r0, #3
+	bne	do_WFI
+#ifdef CONFIG_PL310_ERRATA_727915
+	mov	r0, #0x03
+	mov	r12, #OMAP4_MON_L2X0_DBG_CTRL_INDEX
+	DO_SMC
+#endif
+	bl	omap4_get_l2cache_base
+	mov	r2, r0
+	ldr	r0, =0xffff
+	str	r0, [r2, #L2X0_CLEAN_INV_WAY]
+wait:
+	ldr	r0, [r2, #L2X0_CLEAN_INV_WAY]
+	ldr	r1, =0xffff
+	ands	r0, r0, r1
+	bne	wait
+#ifdef CONFIG_PL310_ERRATA_727915
+	mov	r0, #0x00
+	mov	r12, #OMAP4_MON_L2X0_DBG_CTRL_INDEX
+	DO_SMC
+#endif
+l2x_sync:
+	bl	omap4_get_l2cache_base
+	mov	r2, r0
+	mov	r0, #0x0
+	str	r0, [r2, #L2X0_CACHE_SYNC]
+sync:
+	ldr	r0, [r2, #L2X0_CACHE_SYNC]
+	ands	r0, r0, #0x1
+	bne	sync
+#endif
+
+do_WFI:
+	bl	omap_do_wfi
+
+	/*
+	 * CPU is here when it failed to enter OFF/DORMANT or
+	 * no low power state was attempted.
+	 */
+	mrc	p15, 0, r0, c1, c0, 0
+	tst	r0, #(1 << 2)			@ Check C bit enabled?
+	orreq	r0, r0, #(1 << 2)		@ Enable the C bit
+	mcreq	p15, 0, r0, c1, c0, 0
+	isb
+
+	/*
+	 * Ensure the CPU power state is set to NORMAL in
+	 * SCU power state so that CPU is back in coherency.
+	 * In non-coherent mode CPU can lock-up and lead to
+	 * system deadlock.
+	 */
+	mrc	p15, 0, r0, c1, c0, 1
+	tst	r0, #(1 << 6)			@ Check SMP bit enabled?
+	orreq	r0, r0, #(1 << 6)
+	mcreq	p15, 0, r0, c1, c0, 1
+	isb
+	bl	omap4_get_sar_ram_base
+	mov	r8, r0
+	ldr	r9, [r8, #OMAP_TYPE_OFFSET]
+	cmp	r9, #0x1			@ Check for HS device
+	bne	scu_gp_clear
+	mov	r0, #SCU_PM_NORMAL
+	mov	r1, #0x00
+	stmfd   r13!, {r4-r12, r14}
+	ldr	r12, =OMAP4_MON_SCU_PWR_INDEX
+	DO_SMC
+	ldmfd   r13!, {r4-r12, r14}
+	b	skip_scu_gp_clear
+scu_gp_clear:
+	bl	omap4_get_scu_base
+	mov	r1, #SCU_PM_NORMAL
+	bl	scu_power_mode
+skip_scu_gp_clear:
+	isb
+	dsb
+	ldmfd	sp!, {pc}
+ENDPROC(omap4_finish_suspend)
+
+/*
+ * ============================
+ * == CPU resume entry point ==
+ * ============================
+ *
+ * void omap4_cpu_resume(void)
+ *
+ * ROM code jumps to this function while waking up from CPU
+ * OFF or DORMANT state. Physical address of the function is
+ * stored in the SAR RAM while entering to OFF or DORMANT mode.
+ * The restore function pointer is stored at CPUx_WAKEUP_NS_PA_ADDR_OFFSET.
+ */
+ENTRY(omap4_cpu_resume)
+	/*
+	 * Configure ACTRL and enable NS SMP bit access on CPU1 on HS device.
+	 * OMAP44XX EMU/HS devices - CPU0 SMP bit access is enabled in PPA
+	 * init and for CPU1, a secure PPA API provided. CPU0 must be ON
+	 * while executing NS_SMP API on CPU1 and PPA version must be 1.4.0+.
+	 * OMAP443X GP devices- SMP bit isn't accessible.
+	 * OMAP446X GP devices - SMP bit access is enabled on both CPUs.
+	 */
+	ldr	r8, =OMAP44XX_SAR_RAM_BASE
+	ldr	r9, [r8, #OMAP_TYPE_OFFSET]
+	cmp	r9, #0x1			@ Skip if GP device
+	bne	skip_ns_smp_enable
+	mrc     p15, 0, r0, c0, c0, 5
+	ands    r0, r0, #0x0f
+	beq	skip_ns_smp_enable
+ppa_actrl_retry:
+	mov     r0, #OMAP4_PPA_CPU_ACTRL_SMP_INDEX
+	adr	r3, ppa_zero_params		@ Pointer to parameters
+	mov	r1, #0x0			@ Process ID
+	mov	r2, #0x4			@ Flag
+	mov	r6, #0xff
+	mov	r12, #0x00			@ Secure Service ID
+	DO_SMC
+	cmp	r0, #0x0			@ API returns 0 on success.
+	beq	enable_smp_bit
+	b	ppa_actrl_retry
+enable_smp_bit:
+	mrc	p15, 0, r0, c1, c0, 1
+	tst	r0, #(1 << 6)			@ Check SMP bit enabled?
+	orreq	r0, r0, #(1 << 6)
+	mcreq	p15, 0, r0, c1, c0, 1
+	isb
+skip_ns_smp_enable:
+#ifdef CONFIG_CACHE_L2X0
+	/*
+	 * Restore the L2 AUXCTRL and enable the L2 cache.
+	 * OMAP4_MON_L2X0_AUXCTRL_INDEX =  Program the L2X0 AUXCTRL
+	 * OMAP4_MON_L2X0_CTRL_INDEX =  Enable the L2 using L2X0 CTRL
+	 * register r0 contains value to be programmed.
+	 * L2 cache is already invalidate by ROM code as part
+	 * of MPUSS OFF wakeup path.
+	 */
+	ldr	r2, =OMAP44XX_L2CACHE_BASE
+	ldr	r0, [r2, #L2X0_CTRL]
+	and	r0, #0x0f
+	cmp	r0, #1
+	beq	skip_l2en			@ Skip if already enabled
+	ldr	r3, =OMAP44XX_SAR_RAM_BASE
+	ldr	r1, [r3, #OMAP_TYPE_OFFSET]
+	cmp	r1, #0x1			@ Check for HS device
+	bne     set_gp_por
+	ldr     r0, =OMAP4_PPA_L2_POR_INDEX
+	ldr     r1, =OMAP44XX_SAR_RAM_BASE
+	ldr     r4, [r1, #L2X0_PREFETCH_CTRL_OFFSET]
+	adr     r3, ppa_por_params
+	str     r4, [r3, #0x04]
+	mov	r1, #0x0			@ Process ID
+	mov	r2, #0x4			@ Flag
+	mov	r6, #0xff
+	mov	r12, #0x00			@ Secure Service ID
+	DO_SMC
+	b	set_aux_ctrl
+set_gp_por:
+	ldr     r1, =OMAP44XX_SAR_RAM_BASE
+	ldr     r0, [r1, #L2X0_PREFETCH_CTRL_OFFSET]
+	ldr	r12, =OMAP4_MON_L2X0_PREFETCH_INDEX	@ Setup L2 PREFETCH
+	DO_SMC
+set_aux_ctrl:
+	ldr     r1, =OMAP44XX_SAR_RAM_BASE
+	ldr	r0, [r1, #L2X0_AUXCTRL_OFFSET]
+	ldr	r12, =OMAP4_MON_L2X0_AUXCTRL_INDEX	@ Setup L2 AUXCTRL
+	DO_SMC
+	mov	r0, #0x1
+	ldr	r12, =OMAP4_MON_L2X0_CTRL_INDEX		@ Enable L2 cache
+	DO_SMC
+skip_l2en:
+#endif
+
+	b	cpu_resume			@ Jump to generic resume
+ENDPROC(omap4_cpu_resume)
+#endif
+
+#ifndef CONFIG_OMAP4_ERRATA_I688
+ENTRY(omap_bus_sync)
+	mov	pc, lr
+ENDPROC(omap_bus_sync)
+#endif
+
+ENTRY(omap_do_wfi)
+	stmfd	sp!, {lr}
+	/* Drain interconnect write buffers. */
+	bl omap_bus_sync
+
+	/*
+	 * Execute an ISB instruction to ensure that all of the
+	 * CP15 register changes have been committed.
+	 */
+	isb
+
+	/*
+	 * Execute a barrier instruction to ensure that all cache,
+	 * TLB and branch predictor maintenance operations issued
+	 * by any CPU in the cluster have completed.
+	 */
+	dsb
+	dmb
+
+	/*
+	 * Execute a WFI instruction and wait until the
+	 * STANDBYWFI output is asserted to indicate that the
+	 * CPU is in idle and low power state. CPU can specualatively
+	 * prefetch the instructions so add NOPs after WFI. Sixteen
+	 * NOPs as per Cortex-A9 pipeline.
+	 */
+	wfi					@ Wait For Interrupt
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+	nop
+
+	ldmfd	sp!, {pc}
+ENDPROC(omap_do_wfi)
diff --git a/arch/arm/mach-omap2/usb-host.c b/arch/arm/mach-omap2/usb-host.c
index 89ae29847c59..771dc781b746 100644
--- a/arch/arm/mach-omap2/usb-host.c
+++ b/arch/arm/mach-omap2/usb-host.c
@@ -28,51 +28,28 @@
 #include <mach/hardware.h>
 #include <mach/irqs.h>
 #include <plat/usb.h>
+#include <plat/omap_device.h>
 
 #include "mux.h"
 
 #ifdef CONFIG_MFD_OMAP_USB_HOST
 
-#define OMAP_USBHS_DEVICE	"usbhs-omap"
-
-static struct resource usbhs_resources[] = {
-	{
-		.name	= "uhh",
-		.flags	= IORESOURCE_MEM,
-	},
-	{
-		.name	= "tll",
-		.flags	= IORESOURCE_MEM,
-	},
-	{
-		.name	= "ehci",
-		.flags	= IORESOURCE_MEM,
-	},
-	{
-		.name	= "ehci-irq",
-		.flags	= IORESOURCE_IRQ,
-	},
-	{
-		.name	= "ohci",
-		.flags	= IORESOURCE_MEM,
-	},
-	{
-		.name	= "ohci-irq",
-		.flags	= IORESOURCE_IRQ,
-	}
-};
-
-static struct platform_device usbhs_device = {
-	.name		= OMAP_USBHS_DEVICE,
-	.id		= 0,
-	.num_resources	= ARRAY_SIZE(usbhs_resources),
-	.resource	= usbhs_resources,
-};
+#define OMAP_USBHS_DEVICE	"usbhs_omap"
+#define	USBHS_UHH_HWMODNAME	"usb_host_hs"
+#define USBHS_TLL_HWMODNAME	"usb_tll_hs"
 
 static struct usbhs_omap_platform_data		usbhs_data;
 static struct ehci_hcd_omap_platform_data	ehci_data;
 static struct ohci_hcd_omap_platform_data	ohci_data;
 
+static struct omap_device_pm_latency omap_uhhtll_latency[] = {
+	  {
+		.deactivate_func = omap_device_idle_hwmods,
+		.activate_func	 = omap_device_enable_hwmods,
+		.flags = OMAP_DEVICE_LATENCY_AUTO_ADJUST,
+	  },
+};
+
 /* MUX settings for EHCI pins */
 /*
  * setup_ehci_io_mux - initialize IO pad mux for USBHOST
@@ -508,7 +485,10 @@ static void setup_4430ohci_io_mux(const enum usbhs_omap_port_mode *port_mode)
 
 void __init usbhs_init(const struct usbhs_omap_board_data *pdata)
 {
-	int	i;
+	struct omap_hwmod	*oh[2];
+	struct omap_device	*od;
+	int			bus_id = -1;
+	int			i;
 
 	for (i = 0; i < OMAP3_HS_USB_PORTS; i++) {
 		usbhs_data.port_mode[i] = pdata->port_mode[i];
@@ -523,44 +503,34 @@ void __init usbhs_init(const struct usbhs_omap_board_data *pdata)
 	usbhs_data.ohci_data = &ohci_data;
 
 	if (cpu_is_omap34xx()) {
-		usbhs_resources[0].start = OMAP34XX_UHH_CONFIG_BASE;
-		usbhs_resources[0].end = OMAP34XX_UHH_CONFIG_BASE + SZ_1K - 1;
-		usbhs_resources[1].start = OMAP34XX_USBTLL_BASE;
-		usbhs_resources[1].end = OMAP34XX_USBTLL_BASE + SZ_4K - 1;
-		usbhs_resources[2].start	= OMAP34XX_EHCI_BASE;
-		usbhs_resources[2].end	= OMAP34XX_EHCI_BASE + SZ_1K - 1;
-		usbhs_resources[3].start = INT_34XX_EHCI_IRQ;
-		usbhs_resources[4].start	= OMAP34XX_OHCI_BASE;
-		usbhs_resources[4].end	= OMAP34XX_OHCI_BASE + SZ_1K - 1;
-		usbhs_resources[5].start = INT_34XX_OHCI_IRQ;
 		setup_ehci_io_mux(pdata->port_mode);
 		setup_ohci_io_mux(pdata->port_mode);
 	} else if (cpu_is_omap44xx()) {
-		usbhs_resources[0].start = OMAP44XX_UHH_CONFIG_BASE;
-		usbhs_resources[0].end = OMAP44XX_UHH_CONFIG_BASE + SZ_1K - 1;
-		usbhs_resources[1].start = OMAP44XX_USBTLL_BASE;
-		usbhs_resources[1].end = OMAP44XX_USBTLL_BASE + SZ_4K - 1;
-		usbhs_resources[2].start = OMAP44XX_HSUSB_EHCI_BASE;
-		usbhs_resources[2].end = OMAP44XX_HSUSB_EHCI_BASE + SZ_1K - 1;
-		usbhs_resources[3].start = OMAP44XX_IRQ_EHCI;
-		usbhs_resources[4].start = OMAP44XX_HSUSB_OHCI_BASE;
-		usbhs_resources[4].end = OMAP44XX_HSUSB_OHCI_BASE + SZ_1K - 1;
-		usbhs_resources[5].start = OMAP44XX_IRQ_OHCI;
 		setup_4430ehci_io_mux(pdata->port_mode);
 		setup_4430ohci_io_mux(pdata->port_mode);
 	}
 
-	if (platform_device_add_data(&usbhs_device,
-				&usbhs_data, sizeof(usbhs_data)) < 0) {
-		printk(KERN_ERR "USBHS platform_device_add_data failed\n");
-		goto init_end;
+	oh[0] = omap_hwmod_lookup(USBHS_UHH_HWMODNAME);
+	if (!oh[0]) {
+		pr_err("Could not look up %s\n", USBHS_UHH_HWMODNAME);
+		return;
 	}
 
-	if (platform_device_register(&usbhs_device) < 0)
-		printk(KERN_ERR "USBHS platform_device_register failed\n");
+	oh[1] = omap_hwmod_lookup(USBHS_TLL_HWMODNAME);
+	if (!oh[1]) {
+		pr_err("Could not look up %s\n", USBHS_TLL_HWMODNAME);
+		return;
+	}
 
-init_end:
-	return;
+	od = omap_device_build_ss(OMAP_USBHS_DEVICE, bus_id, oh, 2,
+				(void *)&usbhs_data, sizeof(usbhs_data),
+				omap_uhhtll_latency,
+				ARRAY_SIZE(omap_uhhtll_latency), false);
+	if (IS_ERR(od)) {
+		pr_err("Could not build hwmod devices %s,%s\n",
+			USBHS_UHH_HWMODNAME, USBHS_TLL_HWMODNAME);
+		return;
+	}
 }
 
 #else
@@ -570,5 +540,3 @@ void __init usbhs_init(const struct usbhs_omap_board_data *pdata)
 }
 
 #endif
-
-
diff --git a/arch/arm/mach-omap2/usb-musb.c b/arch/arm/mach-omap2/usb-musb.c
index 267975086a7b..8d5ed775dd56 100644
--- a/arch/arm/mach-omap2/usb-musb.c
+++ b/arch/arm/mach-omap2/usb-musb.c
@@ -93,6 +93,9 @@ void __init usb_musb_init(struct omap_musb_board_data *musb_board_data)
 	if (cpu_is_omap3517() || cpu_is_omap3505()) {
 		oh_name = "am35x_otg_hs";
 		name = "musb-am35x";
+	} else if (cpu_is_ti81xx()) {
+		oh_name = "usb_otg_hs";
+		name = "musb-ti81xx";
 	} else {
 		oh_name = "usb_otg_hs";
 		name = "musb-omap2430";
diff --git a/arch/arm/mach-omap2/voltagedomains3xxx_data.c b/arch/arm/mach-omap2/voltagedomains3xxx_data.c
index 474559d5b072..c005e2f5e383 100644
--- a/arch/arm/mach-omap2/voltagedomains3xxx_data.c
+++ b/arch/arm/mach-omap2/voltagedomains3xxx_data.c
@@ -31,6 +31,14 @@
  * VDD data
  */
 
+/* OMAP3-common voltagedomain data */
+
+static struct voltagedomain omap3_voltdm_wkup = {
+	.name = "wakeup",
+};
+
+/* 34xx/36xx voltagedomain data */
+
 static const struct omap_vfsm_instance omap3_vdd1_vfsm = {
 	.voltsetup_reg = OMAP3_PRM_VOLTSETUP1_OFFSET,
 	.voltsetup_mask = OMAP3430_SETUP_TIME1_MASK,
@@ -63,10 +71,6 @@ static struct voltagedomain omap3_voltdm_core = {
 	.vp = &omap3_vp_core,
 };
 
-static struct voltagedomain omap3_voltdm_wkup = {
-	.name = "wakeup",
-};
-
 static struct voltagedomain *voltagedomains_omap3[] __initdata = {
 	&omap3_voltdm_mpu,
 	&omap3_voltdm_core,
@@ -74,11 +78,30 @@ static struct voltagedomain *voltagedomains_omap3[] __initdata = {
 	NULL,
 };
 
+/* AM35xx voltagedomain data */
+
+static struct voltagedomain am35xx_voltdm_mpu = {
+	.name = "mpu_iva",
+};
+
+static struct voltagedomain am35xx_voltdm_core = {
+	.name = "core",
+};
+
+static struct voltagedomain *voltagedomains_am35xx[] __initdata = {
+	&am35xx_voltdm_mpu,
+	&am35xx_voltdm_core,
+	&omap3_voltdm_wkup,
+	NULL,
+};
+
+
 static const char *sys_clk_name __initdata = "sys_ck";
 
 void __init omap3xxx_voltagedomains_init(void)
 {
 	struct voltagedomain *voltdm;
+	struct voltagedomain **voltdms;
 	int i;
 
 	/*
@@ -93,8 +116,13 @@ void __init omap3xxx_voltagedomains_init(void)
 		omap3_voltdm_core.volt_data = omap34xx_vddcore_volt_data;
 	}
 
-	for (i = 0; voltdm = voltagedomains_omap3[i], voltdm; i++)
+	if (cpu_is_omap3517() || cpu_is_omap3505())
+		voltdms = voltagedomains_am35xx;
+	else
+		voltdms = voltagedomains_omap3;
+
+	for (i = 0; voltdm = voltdms[i], voltdm; i++)
 		voltdm->sys_clk.name = sys_clk_name;
 
-	voltdm_init(voltagedomains_omap3);
+	voltdm_init(voltdms);
 };
diff --git a/arch/arm/mach-orion5x/addr-map.c b/arch/arm/mach-orion5x/addr-map.c
index 5ceafdccc456..3638e5c12b7e 100644
--- a/arch/arm/mach-orion5x/addr-map.c
+++ b/arch/arm/mach-orion5x/addr-map.c
@@ -14,8 +14,8 @@
 #include <linux/init.h>
 #include <linux/mbus.h>
 #include <linux/io.h>
-#include <linux/errno.h>
 #include <mach/hardware.h>
+#include <plat/addr-map.h>
 #include "common.h"
 
 /*
@@ -41,7 +41,6 @@
 /*
  * Generic Address Decode Windows bit settings
  */
-#define TARGET_DDR		0
 #define TARGET_DEV_BUS		1
 #define TARGET_PCI		3
 #define TARGET_PCIE		4
@@ -57,27 +56,10 @@
 #define ATTR_DEV_BOOT		0xf
 #define ATTR_SRAM		0x0
 
-/*
- * Helpers to get DDR bank info
- */
-#define ORION5X_DDR_REG(x)	(ORION5X_DDR_VIRT_BASE | (x))
-#define DDR_BASE_CS(n)		ORION5X_DDR_REG(0x1500 + ((n) << 3))
-#define DDR_SIZE_CS(n)		ORION5X_DDR_REG(0x1504 + ((n) << 3))
-
-/*
- * CPU Address Decode Windows registers
- */
-#define ORION5X_BRIDGE_REG(x)	(ORION5X_BRIDGE_VIRT_BASE | (x))
-#define CPU_WIN_CTRL(n)		ORION5X_BRIDGE_REG(0x000 | ((n) << 4))
-#define CPU_WIN_BASE(n)		ORION5X_BRIDGE_REG(0x004 | ((n) << 4))
-#define CPU_WIN_REMAP_LO(n)	ORION5X_BRIDGE_REG(0x008 | ((n) << 4))
-#define CPU_WIN_REMAP_HI(n)	ORION5X_BRIDGE_REG(0x00c | ((n) << 4))
-
-
-struct mbus_dram_target_info orion5x_mbus_dram_info;
 static int __initdata win_alloc_count;
 
-static int __init orion5x_cpu_win_can_remap(int win)
+static int __init cpu_win_can_remap(const struct orion_addr_map_cfg *cfg,
+		  const int win)
 {
 	u32 dev, rev;
 
@@ -91,116 +73,82 @@ static int __init orion5x_cpu_win_can_remap(int win)
 	return 0;
 }
 
-static int __init setup_cpu_win(int win, u32 base, u32 size,
-				 u8 target, u8 attr, int remap)
-{
-	if (win >= 8) {
-		printk(KERN_ERR "setup_cpu_win: trying to allocate "
-				"window %d\n", win);
-		return -ENOSPC;
-	}
-
-	writel(base & 0xffff0000, CPU_WIN_BASE(win));
-	writel(((size - 1) & 0xffff0000) | (attr << 8) | (target << 4) | 1,
-		CPU_WIN_CTRL(win));
-
-	if (orion5x_cpu_win_can_remap(win)) {
-		if (remap < 0)
-			remap = base;
-
-		writel(remap & 0xffff0000, CPU_WIN_REMAP_LO(win));
-		writel(0, CPU_WIN_REMAP_HI(win));
-	}
-	return 0;
-}
-
-void __init orion5x_setup_cpu_mbus_bridge(void)
-{
-	int i;
-	int cs;
+/*
+ * Description of the windows needed by the platform code
+ */
+static struct __initdata orion_addr_map_cfg addr_map_cfg = {
+	.num_wins = 8,
+	.cpu_win_can_remap = cpu_win_can_remap,
+	.bridge_virt_base = ORION5X_BRIDGE_VIRT_BASE,
+};
 
+static const struct __initdata orion_addr_map_info addr_map_info[] = {
 	/*
-	 * First, disable and clear windows.
+	 * Setup windows for PCI+PCIe IO+MEM space.
 	 */
-	for (i = 0; i < 8; i++) {
-		writel(0, CPU_WIN_BASE(i));
-		writel(0, CPU_WIN_CTRL(i));
-		if (orion5x_cpu_win_can_remap(i)) {
-			writel(0, CPU_WIN_REMAP_LO(i));
-			writel(0, CPU_WIN_REMAP_HI(i));
-		}
-	}
+	{ 0, ORION5X_PCIE_IO_PHYS_BASE, ORION5X_PCIE_IO_SIZE,
+	  TARGET_PCIE, ATTR_PCIE_IO, ORION5X_PCIE_IO_BUS_BASE
+	},
+	{ 1, ORION5X_PCI_IO_PHYS_BASE, ORION5X_PCI_IO_SIZE,
+	  TARGET_PCI, ATTR_PCI_IO, ORION5X_PCI_IO_BUS_BASE
+	},
+	{ 2, ORION5X_PCIE_MEM_PHYS_BASE, ORION5X_PCIE_MEM_SIZE,
+	  TARGET_PCIE, ATTR_PCIE_MEM, -1
+	},
+	{ 3, ORION5X_PCI_MEM_PHYS_BASE, ORION5X_PCI_MEM_SIZE,
+	  TARGET_PCI, ATTR_PCI_MEM, -1
+	},
+	/* End marker */
+	{ -1, 0, 0, 0, 0, 0 }
+};
 
+void __init orion5x_setup_cpu_mbus_bridge(void)
+{
 	/*
-	 * Setup windows for PCI+PCIe IO+MEM space.
+	 * Disable, clear and configure windows.
 	 */
-	setup_cpu_win(0, ORION5X_PCIE_IO_PHYS_BASE, ORION5X_PCIE_IO_SIZE,
-		TARGET_PCIE, ATTR_PCIE_IO, ORION5X_PCIE_IO_BUS_BASE);
-	setup_cpu_win(1, ORION5X_PCI_IO_PHYS_BASE, ORION5X_PCI_IO_SIZE,
-		TARGET_PCI, ATTR_PCI_IO, ORION5X_PCI_IO_BUS_BASE);
-	setup_cpu_win(2, ORION5X_PCIE_MEM_PHYS_BASE, ORION5X_PCIE_MEM_SIZE,
-		TARGET_PCIE, ATTR_PCIE_MEM, -1);
-	setup_cpu_win(3, ORION5X_PCI_MEM_PHYS_BASE, ORION5X_PCI_MEM_SIZE,
-		TARGET_PCI, ATTR_PCI_MEM, -1);
+	orion_config_wins(&addr_map_cfg, addr_map_info);
 	win_alloc_count = 4;
 
 	/*
 	 * Setup MBUS dram target info.
 	 */
-	orion5x_mbus_dram_info.mbus_dram_target_id = TARGET_DDR;
-
-	for (i = 0, cs = 0; i < 4; i++) {
-		u32 base = readl(DDR_BASE_CS(i));
-		u32 size = readl(DDR_SIZE_CS(i));
-
-		/*
-		 * Chip select enabled?
-		 */
-		if (size & 1) {
-			struct mbus_dram_window *w;
-
-			w = &orion5x_mbus_dram_info.cs[cs++];
-			w->cs_index = i;
-			w->mbus_attr = 0xf & ~(1 << i);
-			w->base = base & 0xffff0000;
-			w->size = (size | 0x0000ffff) + 1;
-		}
-	}
-	orion5x_mbus_dram_info.num_cs = cs;
+	orion_setup_cpu_mbus_target(&addr_map_cfg, ORION5X_DDR_WINDOW_CPU_BASE);
 }
 
 void __init orion5x_setup_dev_boot_win(u32 base, u32 size)
 {
-	setup_cpu_win(win_alloc_count++, base, size,
-		      TARGET_DEV_BUS, ATTR_DEV_BOOT, -1);
+	orion_setup_cpu_win(&addr_map_cfg, win_alloc_count++, base, size,
+			    TARGET_DEV_BUS, ATTR_DEV_BOOT, -1);
 }
 
 void __init orion5x_setup_dev0_win(u32 base, u32 size)
 {
-	setup_cpu_win(win_alloc_count++, base, size,
-		      TARGET_DEV_BUS, ATTR_DEV_CS0, -1);
+	orion_setup_cpu_win(&addr_map_cfg, win_alloc_count++, base, size,
+			    TARGET_DEV_BUS, ATTR_DEV_CS0, -1);
 }
 
 void __init orion5x_setup_dev1_win(u32 base, u32 size)
 {
-	setup_cpu_win(win_alloc_count++, base, size,
-		      TARGET_DEV_BUS, ATTR_DEV_CS1, -1);
+	orion_setup_cpu_win(&addr_map_cfg, win_alloc_count++, base, size,
+			    TARGET_DEV_BUS, ATTR_DEV_CS1, -1);
 }
 
 void __init orion5x_setup_dev2_win(u32 base, u32 size)
 {
-	setup_cpu_win(win_alloc_count++, base, size,
-		      TARGET_DEV_BUS, ATTR_DEV_CS2, -1);
+	orion_setup_cpu_win(&addr_map_cfg, win_alloc_count++, base, size,
+			    TARGET_DEV_BUS, ATTR_DEV_CS2, -1);
 }
 
 void __init orion5x_setup_pcie_wa_win(u32 base, u32 size)
 {
-	setup_cpu_win(win_alloc_count++, base, size,
-		      TARGET_PCIE, ATTR_PCIE_WA, -1);
+	orion_setup_cpu_win(&addr_map_cfg, win_alloc_count++, base, size,
+			    TARGET_PCIE, ATTR_PCIE_WA, -1);
 }
 
-int __init orion5x_setup_sram_win(void)
+void __init orion5x_setup_sram_win(void)
 {
-	return setup_cpu_win(win_alloc_count++, ORION5X_SRAM_PHYS_BASE,
-			ORION5X_SRAM_SIZE, TARGET_SRAM, ATTR_SRAM, -1);
+	orion_setup_cpu_win(&addr_map_cfg, win_alloc_count++,
+			    ORION5X_SRAM_PHYS_BASE, ORION5X_SRAM_SIZE,
+			    TARGET_SRAM, ATTR_SRAM, -1);
 }
diff --git a/arch/arm/mach-orion5x/common.c b/arch/arm/mach-orion5x/common.c
index 41127e80cc1e..0e28bae20bd4 100644
--- a/arch/arm/mach-orion5x/common.c
+++ b/arch/arm/mach-orion5x/common.c
@@ -15,7 +15,6 @@
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
 #include <linux/serial_8250.h>
-#include <linux/mbus.h>
 #include <linux/mv643xx_i2c.h>
 #include <linux/ata_platform.h>
 #include <linux/delay.h>
@@ -32,6 +31,7 @@
 #include <plat/orion_nand.h>
 #include <plat/time.h>
 #include <plat/common.h>
+#include <plat/addr-map.h>
 #include "common.h"
 
 /*****************************************************************************
@@ -72,8 +72,7 @@ void __init orion5x_map_io(void)
  ****************************************************************************/
 void __init orion5x_ehci0_init(void)
 {
-	orion_ehci_init(&orion5x_mbus_dram_info,
-			ORION5X_USB0_PHYS_BASE, IRQ_ORION5X_USB0_CTRL);
+	orion_ehci_init(ORION5X_USB0_PHYS_BASE, IRQ_ORION5X_USB0_CTRL);
 }
 
 
@@ -82,8 +81,7 @@ void __init orion5x_ehci0_init(void)
  ****************************************************************************/
 void __init orion5x_ehci1_init(void)
 {
-	orion_ehci_1_init(&orion5x_mbus_dram_info,
-			  ORION5X_USB1_PHYS_BASE, IRQ_ORION5X_USB1_CTRL);
+	orion_ehci_1_init(ORION5X_USB1_PHYS_BASE, IRQ_ORION5X_USB1_CTRL);
 }
 
 
@@ -92,7 +90,7 @@ void __init orion5x_ehci1_init(void)
  ****************************************************************************/
 void __init orion5x_eth_init(struct mv643xx_eth_platform_data *eth_data)
 {
-	orion_ge00_init(eth_data, &orion5x_mbus_dram_info,
+	orion_ge00_init(eth_data,
 			ORION5X_ETH_PHYS_BASE, IRQ_ORION5X_ETH_SUM,
 			IRQ_ORION5X_ETH_ERR, orion5x_tclk);
 }
@@ -122,8 +120,7 @@ void __init orion5x_i2c_init(void)
  ****************************************************************************/
 void __init orion5x_sata_init(struct mv_sata_platform_data *sata_data)
 {
-	orion_sata_init(sata_data, &orion5x_mbus_dram_info,
-			ORION5X_SATA_PHYS_BASE, IRQ_ORION5X_SATA);
+	orion_sata_init(sata_data, ORION5X_SATA_PHYS_BASE, IRQ_ORION5X_SATA);
 }
 
 
@@ -159,8 +156,7 @@ void __init orion5x_uart1_init(void)
  ****************************************************************************/
 void __init orion5x_xor_init(void)
 {
-	orion_xor0_init(&orion5x_mbus_dram_info,
-			ORION5X_XOR_PHYS_BASE,
+	orion_xor0_init(ORION5X_XOR_PHYS_BASE,
 			ORION5X_XOR_PHYS_BASE + 0x200,
 			IRQ_ORION5X_XOR0, IRQ_ORION5X_XOR1);
 }
@@ -170,12 +166,7 @@ void __init orion5x_xor_init(void)
  ****************************************************************************/
 static void __init orion5x_crypto_init(void)
 {
-	int ret;
-
-	ret = orion5x_setup_sram_win();
-	if (ret)
-		return;
-
+	orion5x_setup_sram_win();
 	orion_crypto_init(ORION5X_CRYPTO_PHYS_BASE, ORION5X_SRAM_PHYS_BASE,
 			  SZ_8K, IRQ_ORION5X_CESA);
 }
diff --git a/arch/arm/mach-orion5x/common.h b/arch/arm/mach-orion5x/common.h
index 37ef18de61b7..d2513ac79ff5 100644
--- a/arch/arm/mach-orion5x/common.h
+++ b/arch/arm/mach-orion5x/common.h
@@ -20,14 +20,13 @@ extern struct sys_timer orion5x_timer;
  * functions to map its interfaces and by the machine-setup to map its on-
  * board devices. Details in /mach-orion/addr-map.c
  */
-extern struct mbus_dram_target_info orion5x_mbus_dram_info;
 void orion5x_setup_cpu_mbus_bridge(void);
 void orion5x_setup_dev_boot_win(u32 base, u32 size);
 void orion5x_setup_dev0_win(u32 base, u32 size);
 void orion5x_setup_dev1_win(u32 base, u32 size);
 void orion5x_setup_dev2_win(u32 base, u32 size);
 void orion5x_setup_pcie_wa_win(u32 base, u32 size);
-int orion5x_setup_sram_win(void);
+void orion5x_setup_sram_win(void);
 
 void orion5x_ehci0_init(void);
 void orion5x_ehci1_init(void);
diff --git a/arch/arm/mach-orion5x/include/mach/orion5x.h b/arch/arm/mach-orion5x/include/mach/orion5x.h
index 0a28bbc76891..2745f5d95b3f 100644
--- a/arch/arm/mach-orion5x/include/mach/orion5x.h
+++ b/arch/arm/mach-orion5x/include/mach/orion5x.h
@@ -69,7 +69,7 @@
  ******************************************************************************/
 
 #define ORION5X_DDR_VIRT_BASE		(ORION5X_REGS_VIRT_BASE | 0x00000)
-
+#define  ORION5X_DDR_WINDOW_CPU_BASE    (ORION5X_DDR_VIRT_BASE | 0x1500)
 #define ORION5X_DEV_BUS_PHYS_BASE	(ORION5X_REGS_PHYS_BASE | 0x10000)
 #define ORION5X_DEV_BUS_VIRT_BASE	(ORION5X_REGS_VIRT_BASE | 0x10000)
 #define ORION5X_DEV_BUS_REG(x)		(ORION5X_DEV_BUS_VIRT_BASE | (x))
diff --git a/arch/arm/mach-orion5x/mpp.c b/arch/arm/mach-orion5x/mpp.c
index b6ddd7a5db6a..5b70026f478c 100644
--- a/arch/arm/mach-orion5x/mpp.c
+++ b/arch/arm/mach-orion5x/mpp.c
@@ -10,7 +10,6 @@
 
 #include <linux/kernel.h>
 #include <linux/init.h>
-#include <linux/mbus.h>
 #include <linux/io.h>
 #include <mach/hardware.h>
 #include <plat/mpp.h>
diff --git a/arch/arm/mach-orion5x/pci.c b/arch/arm/mach-orion5x/pci.c
index bc4a920e26ee..a494c470e3e4 100644
--- a/arch/arm/mach-orion5x/pci.c
+++ b/arch/arm/mach-orion5x/pci.c
@@ -18,6 +18,7 @@
 #include <asm/irq.h>
 #include <asm/mach/pci.h>
 #include <plat/pcie.h>
+#include <plat/addr-map.h>
 #include "common.h"
 
 /*****************************************************************************
@@ -145,7 +146,7 @@ static int __init pcie_setup(struct pci_sys_data *sys)
 	/*
 	 * Generic PCIe unit setup.
 	 */
-	orion_pcie_setup(PCIE_BASE, &orion5x_mbus_dram_info);
+	orion_pcie_setup(PCIE_BASE);
 
 	/*
 	 * Check whether to apply Orion-1/Orion-NAS PCIe config
@@ -477,7 +478,7 @@ static int __init pci_setup(struct pci_sys_data *sys)
 	/*
 	 * Point PCI unit MBUS decode windows to DRAM space.
 	 */
-	orion5x_setup_pci_wins(&orion5x_mbus_dram_info);
+	orion5x_setup_pci_wins(&orion_mbus_dram_info);
 
 	/*
 	 * Master + Slave enable
diff --git a/arch/arm/mach-picoxcell/Makefile b/arch/arm/mach-picoxcell/Makefile
index c550b6363488..e5ec4a8d9bcb 100644
--- a/arch/arm/mach-picoxcell/Makefile
+++ b/arch/arm/mach-picoxcell/Makefile
@@ -1,3 +1,2 @@
 obj-y	:= common.o
 obj-y	+= time.o
-obj-y	+= io.o
diff --git a/arch/arm/mach-picoxcell/common.c b/arch/arm/mach-picoxcell/common.c
index ad871bd7b1ab..a2e8ae8b5821 100644
--- a/arch/arm/mach-picoxcell/common.c
+++ b/arch/arm/mach-picoxcell/common.c
@@ -7,6 +7,7 @@
  *
  * All enquiries to support@picochip.com
  */
+#include <linux/delay.h>
 #include <linux/irq.h>
 #include <linux/irqdomain.h>
 #include <linux/of.h>
@@ -16,15 +17,49 @@
 
 #include <asm/mach/arch.h>
 #include <asm/hardware/vic.h>
+#include <asm/mach/map.h>
 
 #include <mach/map.h>
 #include <mach/picoxcell_soc.h>
 
 #include "common.h"
 
+#define WDT_CTRL_REG_EN_MASK	(1 << 0)
+#define WDT_CTRL_REG_OFFS	(0x00)
+#define WDT_TIMEOUT_REG_OFFS	(0x04)
+static void __iomem *wdt_regs;
+
+/*
+ * The machine restart method can be called from an atomic context so we won't
+ * be able to ioremap the regs then.
+ */
+static void picoxcell_setup_restart(void)
+{
+	struct device_node *np = of_find_compatible_node(NULL, NULL,
+							 "snps,dw-apb-wdg");
+	if (WARN(!np, "unable to setup watchdog restart"))
+		return;
+
+	wdt_regs = of_iomap(np, 0);
+	WARN(!wdt_regs, "failed to remap watchdog regs");
+}
+
+static struct map_desc io_map __initdata = {
+	.virtual	= PHYS_TO_IO(PICOXCELL_PERIPH_BASE),
+	.pfn		= __phys_to_pfn(PICOXCELL_PERIPH_BASE),
+	.length		= PICOXCELL_PERIPH_LENGTH,
+	.type		= MT_DEVICE,
+};
+
+static void __init picoxcell_map_io(void)
+{
+	iotable_init(&io_map, 1);
+}
+
 static void __init picoxcell_init_machine(void)
 {
 	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+	picoxcell_setup_restart();
 }
 
 static const char *picoxcell_dt_match[] = {
@@ -43,12 +78,27 @@ static void __init picoxcell_init_irq(void)
 	of_irq_init(vic_of_match);
 }
 
+static void picoxcell_wdt_restart(char mode, const char *cmd)
+{
+	/*
+	 * Configure the watchdog to reset with the shortest possible timeout
+	 * and give it chance to do the reset.
+	 */
+	if (wdt_regs) {
+		writel_relaxed(WDT_CTRL_REG_EN_MASK, wdt_regs + WDT_CTRL_REG_OFFS);
+		writel_relaxed(0, wdt_regs + WDT_TIMEOUT_REG_OFFS);
+		/* No sleeping, possibly atomic. */
+		mdelay(500);
+	}
+}
+
 DT_MACHINE_START(PICOXCELL, "Picochip picoXcell")
 	.map_io		= picoxcell_map_io,
-	.nr_irqs	= ARCH_NR_IRQS,
+	.nr_irqs	= NR_IRQS_LEGACY,
 	.init_irq	= picoxcell_init_irq,
 	.handle_irq	= vic_handle_irq,
 	.timer		= &picoxcell_timer,
 	.init_machine	= picoxcell_init_machine,
 	.dt_compat	= picoxcell_dt_match,
+	.restart	= picoxcell_wdt_restart,
 MACHINE_END
diff --git a/arch/arm/mach-picoxcell/common.h b/arch/arm/mach-picoxcell/common.h
index 5263f0fa095c..83d55ab956a4 100644
--- a/arch/arm/mach-picoxcell/common.h
+++ b/arch/arm/mach-picoxcell/common.h
@@ -13,6 +13,5 @@
 #include <asm/mach/time.h>
 
 extern struct sys_timer picoxcell_timer;
-extern void picoxcell_map_io(void);
 
 #endif /* __PICOXCELL_COMMON_H__ */
diff --git a/arch/arm/mach-picoxcell/include/mach/irqs.h b/arch/arm/mach-picoxcell/include/mach/irqs.h
index 4d13ed970919..59eac1ee2820 100644
--- a/arch/arm/mach-picoxcell/include/mach/irqs.h
+++ b/arch/arm/mach-picoxcell/include/mach/irqs.h
@@ -1,8 +1,6 @@
 /*
  * Copyright (c) 2011 Picochip Ltd., Jamie Iles
  *
- * This file contains the hardware definitions of the picoXcell SoC devices.
- *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
@@ -16,10 +14,7 @@
 #ifndef __MACH_IRQS_H
 #define __MACH_IRQS_H
 
-#define ARCH_NR_IRQS			64
-#define NR_IRQS				(128 + ARCH_NR_IRQS)
-
-#define IRQ_VIC0_BASE			0
-#define IRQ_VIC1_BASE			32
+/* We dynamically allocate our irq_desc's. */
+#define NR_IRQS				0
 
 #endif /* __MACH_IRQS_H */
diff --git a/arch/arm/mach-picoxcell/include/mach/memory.h b/arch/arm/mach-picoxcell/include/mach/memory.h
deleted file mode 100644
index 40a8c178f10d..000000000000
--- a/arch/arm/mach-picoxcell/include/mach/memory.h
+++ /dev/null
@@ -1 +0,0 @@
-/* empty */
diff --git a/arch/arm/mach-picoxcell/io.c b/arch/arm/mach-picoxcell/io.c
deleted file mode 100644
index 39e9b9e8cc37..000000000000
--- a/arch/arm/mach-picoxcell/io.c
+++ /dev/null
@@ -1,32 +0,0 @@
-/*
- * Copyright (c) 2011 Picochip Ltd., Jamie Iles
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * All enquiries to support@picochip.com
- */
-#include <linux/io.h>
-#include <linux/mm.h>
-#include <linux/module.h>
-#include <linux/of.h>
-
-#include <asm/mach/map.h>
-
-#include <mach/map.h>
-#include <mach/picoxcell_soc.h>
-
-#include "common.h"
-
-void __init picoxcell_map_io(void)
-{
-	struct map_desc io_map = {
-		.virtual	= PHYS_TO_IO(PICOXCELL_PERIPH_BASE),
-		.pfn		= __phys_to_pfn(PICOXCELL_PERIPH_BASE),
-		.length		= PICOXCELL_PERIPH_LENGTH,
-		.type		= MT_DEVICE,
-	};
-
-	iotable_init(&io_map, 1);
-}
diff --git a/arch/arm/mach-pxa/am200epd.c b/arch/arm/mach-pxa/am200epd.c
index 4cb069fd9af2..ccdac4b6a469 100644
--- a/arch/arm/mach-pxa/am200epd.c
+++ b/arch/arm/mach-pxa/am200epd.c
@@ -138,7 +138,7 @@ static void am200_cleanup(struct metronomefb_par *par)
 {
 	int i;
 
-	free_irq(IRQ_GPIO(RDY_GPIO_PIN), par);
+	free_irq(PXA_GPIO_TO_IRQ(RDY_GPIO_PIN), par);
 
 	for (i = 0; i < ARRAY_SIZE(gpios); i++)
 		gpio_free(gpios[i]);
@@ -292,7 +292,7 @@ static int am200_setup_irq(struct fb_info *info)
 {
 	int ret;
 
-	ret = request_irq(IRQ_GPIO(RDY_GPIO_PIN), am200_handle_irq,
+	ret = request_irq(PXA_GPIO_TO_IRQ(RDY_GPIO_PIN), am200_handle_irq,
 				IRQF_DISABLED|IRQF_TRIGGER_FALLING,
 				"AM200", info->par);
 	if (ret)
diff --git a/arch/arm/mach-pxa/am300epd.c b/arch/arm/mach-pxa/am300epd.c
index fa8bad235d9f..76c4b9494031 100644
--- a/arch/arm/mach-pxa/am300epd.c
+++ b/arch/arm/mach-pxa/am300epd.c
@@ -176,7 +176,7 @@ static void am300_cleanup(struct broadsheetfb_par *par)
 {
 	int i;
 
-	free_irq(IRQ_GPIO(RDY_GPIO_PIN), par);
+	free_irq(PXA_GPIO_TO_IRQ(RDY_GPIO_PIN), par);
 
 	for (i = 0; i < ARRAY_SIZE(gpios); i++)
 		gpio_free(gpios[i]);
@@ -240,7 +240,7 @@ static int am300_setup_irq(struct fb_info *info)
 	int ret;
 	struct broadsheetfb_par *par = info->par;
 
-	ret = request_irq(IRQ_GPIO(RDY_GPIO_PIN), am300_handle_irq,
+	ret = request_irq(PXA_GPIO_TO_IRQ(RDY_GPIO_PIN), am300_handle_irq,
 				IRQF_DISABLED|IRQF_TRIGGER_RISING,
 				"AM300", par);
 	if (ret)
diff --git a/arch/arm/mach-pxa/balloon3.c b/arch/arm/mach-pxa/balloon3.c
index 82514f5c38f1..c35456f02acb 100644
--- a/arch/arm/mach-pxa/balloon3.c
+++ b/arch/arm/mach-pxa/balloon3.c
@@ -13,6 +13,7 @@
  *  published by the Free Software Foundation.
  */
 
+#include <linux/export.h>
 #include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/interrupt.h>
@@ -179,7 +180,7 @@ static unsigned long balloon3_ac97_pin_config[] __initdata = {
 };
 
 static struct ucb1400_pdata vpac270_ucb1400_pdata = {
-	.irq		= IRQ_GPIO(BALLOON3_GPIO_CODEC_IRQ),
+	.irq		= PXA_GPIO_TO_IRQ(BALLOON3_GPIO_CODEC_IRQ),
 };
 
 
diff --git a/arch/arm/mach-pxa/capc7117.c b/arch/arm/mach-pxa/capc7117.c
index c2f0be040d27..c91727d1fe09 100644
--- a/arch/arm/mach-pxa/capc7117.c
+++ b/arch/arm/mach-pxa/capc7117.c
@@ -50,8 +50,8 @@ static struct resource capc7117_ide_resources[] = {
 	       .flags = IORESOURCE_MEM
 	},
 	[2] = {
-	       .start = gpio_to_irq(mfp_to_gpio(MFP_PIN_GPIO76)),
-	       .end = gpio_to_irq(mfp_to_gpio(MFP_PIN_GPIO76)),
+	       .start = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO76)),
+	       .end = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO76)),
 	       .flags = IORESOURCE_IRQ | IRQF_TRIGGER_RISING
 	}
 };
@@ -80,7 +80,7 @@ static void __init capc7117_ide_init(void)
 static struct plat_serial8250_port ti16c752_platform_data[] = {
 	[0] = {
 	       .mapbase = 0x14000000,
-	       .irq = gpio_to_irq(mfp_to_gpio(MFP_PIN_GPIO78)),
+	       .irq = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO78)),
 	       .irqflags = IRQF_TRIGGER_RISING,
 	       .flags = TI16C752_FLAGS,
 	       .iotype = UPIO_MEM,
@@ -89,7 +89,7 @@ static struct plat_serial8250_port ti16c752_platform_data[] = {
 	},
 	[1] = {
 	       .mapbase = 0x14000040,
-	       .irq = gpio_to_irq(mfp_to_gpio(MFP_PIN_GPIO79)),
+	       .irq = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO79)),
 	       .irqflags = IRQF_TRIGGER_RISING,
 	       .flags = TI16C752_FLAGS,
 	       .iotype = UPIO_MEM,
@@ -98,7 +98,7 @@ static struct plat_serial8250_port ti16c752_platform_data[] = {
 	},
 	[2] = {
 	       .mapbase = 0x14000080,
-	       .irq = gpio_to_irq(mfp_to_gpio(MFP_PIN_GPIO80)),
+	       .irq = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO80)),
 	       .irqflags = IRQF_TRIGGER_RISING,
 	       .flags = TI16C752_FLAGS,
 	       .iotype = UPIO_MEM,
@@ -107,7 +107,7 @@ static struct plat_serial8250_port ti16c752_platform_data[] = {
 	},
 	[3] = {
 	       .mapbase = 0x140000c0,
-	       .irq = gpio_to_irq(mfp_to_gpio(MFP_PIN_GPIO81)),
+	       .irq = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO81)),
 	       .irqflags = IRQF_TRIGGER_RISING,
 	       .flags = TI16C752_FLAGS,
 	       .iotype = UPIO_MEM,
diff --git a/arch/arm/mach-pxa/cm-x270.c b/arch/arm/mach-pxa/cm-x270.c
index 13518a705399..431ef56700c4 100644
--- a/arch/arm/mach-pxa/cm-x270.c
+++ b/arch/arm/mach-pxa/cm-x270.c
@@ -33,7 +33,7 @@
 /* GPIO IRQ usage */
 #define GPIO83_MMC_IRQ		(83)
 
-#define CMX270_MMC_IRQ		IRQ_GPIO(GPIO83_MMC_IRQ)
+#define CMX270_MMC_IRQ		PXA_GPIO_TO_IRQ(GPIO83_MMC_IRQ)
 
 /* MMC power enable */
 #define GPIO105_MMC_POWER	(105)
@@ -380,7 +380,7 @@ static struct spi_board_info cm_x270_spi_devices[] __initdata = {
 		.modalias		= "libertas_spi",
 		.max_speed_hz		= 13000000,
 		.bus_num		= 2,
-		.irq			= gpio_to_irq(95),
+		.irq			= PXA_GPIO_TO_IRQ(95),
 		.chip_select		= 0,
 		.controller_data	= &cm_x270_libertas_chip,
 		.platform_data		= &cm_x270_libertas_pdata,
diff --git a/arch/arm/mach-pxa/cm-x2xx.c b/arch/arm/mach-pxa/cm-x2xx.c
index ec170a552c23..8fa4ad27edf3 100644
--- a/arch/arm/mach-pxa/cm-x2xx.c
+++ b/arch/arm/mach-pxa/cm-x2xx.c
@@ -58,8 +58,8 @@ extern void cmx270_init(void);
 #define CMX255_GPIO_IT8152_IRQ	(0)
 #define CMX270_GPIO_IT8152_IRQ	(22)
 
-#define CMX255_ETHIRQ		IRQ_GPIO(GPIO22_ETHIRQ)
-#define CMX270_ETHIRQ		IRQ_GPIO(GPIO10_ETHIRQ)
+#define CMX255_ETHIRQ		PXA_GPIO_TO_IRQ(GPIO22_ETHIRQ)
+#define CMX270_ETHIRQ		PXA_GPIO_TO_IRQ(GPIO10_ETHIRQ)
 
 #if defined(CONFIG_DM9000) || defined(CONFIG_DM9000_MODULE)
 static struct resource cmx255_dm9000_resource[] = {
diff --git a/arch/arm/mach-pxa/cm-x300.c b/arch/arm/mach-pxa/cm-x300.c
index 7236974da0b7..4b981b82d2a5 100644
--- a/arch/arm/mach-pxa/cm-x300.c
+++ b/arch/arm/mach-pxa/cm-x300.c
@@ -64,7 +64,7 @@
 #define GPIO82_MMC_IRQ		(82)
 #define GPIO85_MMC_WP		(85)
 
-#define	CM_X300_MMC_IRQ		IRQ_GPIO(GPIO82_MMC_IRQ)
+#define	CM_X300_MMC_IRQ		PXA_GPIO_TO_IRQ(GPIO82_MMC_IRQ)
 
 #define GPIO95_RTC_CS		(95)
 #define GPIO96_RTC_WR		(96)
@@ -229,8 +229,8 @@ static struct resource dm9000_resources[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[2] = {
-		.start	= IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO99)),
-		.end	= IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO99)),
+		.start	= PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO99)),
+		.end	= PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO99)),
 		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	}
 };
diff --git a/arch/arm/mach-pxa/colibri-pxa270.c b/arch/arm/mach-pxa/colibri-pxa270.c
index 6a685165c9f2..29d5d541f602 100644
--- a/arch/arm/mach-pxa/colibri-pxa270.c
+++ b/arch/arm/mach-pxa/colibri-pxa270.c
@@ -218,8 +218,8 @@ static struct resource colibri_pxa270_dm9000_resources[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	{
-		.start	= gpio_to_irq(GPIO114_COLIBRI_PXA270_ETH_IRQ),
-		.end	= gpio_to_irq(GPIO114_COLIBRI_PXA270_ETH_IRQ),
+		.start	= PXA_GPIO_TO_IRQ(GPIO114_COLIBRI_PXA270_ETH_IRQ),
+		.end	= PXA_GPIO_TO_IRQ(GPIO114_COLIBRI_PXA270_ETH_IRQ),
 		.flags	= IORESOURCE_IRQ | IRQF_TRIGGER_RISING,
 	},
 };
@@ -249,7 +249,7 @@ static pxa2xx_audio_ops_t colibri_pxa270_ac97_pdata = {
 };
 
 static struct ucb1400_pdata colibri_pxa270_ucb1400_pdata = {
-	.irq		= gpio_to_irq(GPIO113_COLIBRI_PXA270_TS_IRQ),
+	.irq		= PXA_GPIO_TO_IRQ(GPIO113_COLIBRI_PXA270_TS_IRQ),
 };
 
 static struct platform_device colibri_pxa270_ucb1400_device = {
diff --git a/arch/arm/mach-pxa/colibri-pxa300.c b/arch/arm/mach-pxa/colibri-pxa300.c
index c01059a61f33..0846d210cb05 100644
--- a/arch/arm/mach-pxa/colibri-pxa300.c
+++ b/arch/arm/mach-pxa/colibri-pxa300.c
@@ -78,8 +78,8 @@ static struct resource colibri_asix_resource[] = {
 		.flags = IORESOURCE_MEM,
 	},
 	[1] = {
-		.start = gpio_to_irq(COLIBRI_ETH_IRQ_GPIO),
-		.end   = gpio_to_irq(COLIBRI_ETH_IRQ_GPIO),
+		.start = PXA_GPIO_TO_IRQ(COLIBRI_ETH_IRQ_GPIO),
+		.end   = PXA_GPIO_TO_IRQ(COLIBRI_ETH_IRQ_GPIO),
 		.flags = IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
 	}
 };
diff --git a/arch/arm/mach-pxa/colibri-pxa320.c b/arch/arm/mach-pxa/colibri-pxa320.c
index 5028f2300d50..6ad3359063af 100644
--- a/arch/arm/mach-pxa/colibri-pxa320.c
+++ b/arch/arm/mach-pxa/colibri-pxa320.c
@@ -115,8 +115,8 @@ static struct resource colibri_asix_resource[] = {
 		.flags = IORESOURCE_MEM,
 	},
 	[1] = {
-		.start = gpio_to_irq(COLIBRI_ETH_IRQ_GPIO),
-		.end   = gpio_to_irq(COLIBRI_ETH_IRQ_GPIO),
+		.start = PXA_GPIO_TO_IRQ(COLIBRI_ETH_IRQ_GPIO),
+		.end   = PXA_GPIO_TO_IRQ(COLIBRI_ETH_IRQ_GPIO),
 		.flags = IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
 	}
 };
diff --git a/arch/arm/mach-pxa/corgi.c b/arch/arm/mach-pxa/corgi.c
index 9d4dc5970b9c..66600f05e436 100644
--- a/arch/arm/mach-pxa/corgi.c
+++ b/arch/arm/mach-pxa/corgi.c
@@ -531,7 +531,7 @@ static struct spi_board_info corgi_spi_devices[] = {
 		.chip_select	= 0,
 		.platform_data	= &corgi_ads7846_info,
 		.controller_data= &corgi_ads7846_chip,
-		.irq		= gpio_to_irq(CORGI_GPIO_TP_INT),
+		.irq		= PXA_GPIO_TO_IRQ(CORGI_GPIO_TP_INT),
 	}, {
 		.modalias	= "corgi-lcd",
 		.max_speed_hz	= 50000,
diff --git a/arch/arm/mach-pxa/corgi_pm.c b/arch/arm/mach-pxa/corgi_pm.c
index 29034778bfda..39e265cfc86d 100644
--- a/arch/arm/mach-pxa/corgi_pm.c
+++ b/arch/arm/mach-pxa/corgi_pm.c
@@ -15,6 +15,7 @@
 #include <linux/kernel.h>
 #include <linux/delay.h>
 #include <linux/gpio.h>
+#include <linux/gpio-pxa.h>
 #include <linux/interrupt.h>
 #include <linux/platform_device.h>
 #include <linux/apm-emulation.h>
@@ -40,7 +41,9 @@ static struct gpio charger_gpios[] = {
 	{ CORGI_GPIO_ADC_TEMP_ON, GPIOF_OUT_INIT_LOW, "ADC Temp On" },
 	{ CORGI_GPIO_CHRG_ON,	  GPIOF_OUT_INIT_LOW, "Charger On" },
 	{ CORGI_GPIO_CHRG_UKN,	  GPIOF_OUT_INIT_LOW, "Charger Unknown" },
+	{ CORGI_GPIO_AC_IN,	  GPIOF_IN, "Charger Detection" },
 	{ CORGI_GPIO_KEY_INT,	  GPIOF_IN, "Key Interrupt" },
+	{ CORGI_GPIO_WAKEUP,	  GPIOF_IN, "System wakeup notification" },
 };
 
 static void corgi_charger_init(void)
@@ -90,7 +93,12 @@ static int corgi_should_wakeup(unsigned int resume_on_alarm)
 {
 	int is_resume = 0;
 
-	dev_dbg(sharpsl_pm.dev, "GPLR0 = %x,%x\n", GPLR0, PEDR);
+	dev_dbg(sharpsl_pm.dev, "PEDR = %x, GPIO_AC_IN = %d, "
+		"GPIO_CHRG_FULL = %d, GPIO_KEY_INT = %d, GPIO_WAKEUP = %d\n",
+		PEDR, gpio_get_value(CORGI_GPIO_AC_IN),
+		gpio_get_value(CORGI_GPIO_CHRG_FULL),
+		gpio_get_value(CORGI_GPIO_KEY_INT),
+		gpio_get_value(CORGI_GPIO_WAKEUP));
 
 	if ((PEDR & GPIO_bit(CORGI_GPIO_AC_IN))) {
 		if (sharpsl_pm.machinfo->read_devdata(SHARPSL_STATUS_ACIN)) {
@@ -124,14 +132,21 @@ static int corgi_should_wakeup(unsigned int resume_on_alarm)
 
 static unsigned long corgi_charger_wakeup(void)
 {
-	return ~GPLR0 & ( GPIO_bit(CORGI_GPIO_AC_IN) | GPIO_bit(CORGI_GPIO_KEY_INT) | GPIO_bit(CORGI_GPIO_WAKEUP) );
+	unsigned long ret;
+
+	ret = (!gpio_get_value(CORGI_GPIO_AC_IN) << GPIO_bit(CORGI_GPIO_AC_IN))
+		| (!gpio_get_value(CORGI_GPIO_KEY_INT)
+		<< GPIO_bit(CORGI_GPIO_KEY_INT))
+		| (!gpio_get_value(CORGI_GPIO_WAKEUP)
+		<< GPIO_bit(CORGI_GPIO_WAKEUP));
+	return ret;
 }
 
 unsigned long corgipm_read_devdata(int type)
 {
 	switch(type) {
 	case SHARPSL_STATUS_ACIN:
-		return ((GPLR(CORGI_GPIO_AC_IN) & GPIO_bit(CORGI_GPIO_AC_IN)) != 0);
+		return !gpio_get_value(CORGI_GPIO_AC_IN);
 	case SHARPSL_STATUS_LOCK:
 		return gpio_get_value(sharpsl_pm.machinfo->gpio_batlock);
 	case SHARPSL_STATUS_CHRGFULL:
diff --git a/arch/arm/mach-pxa/devices.c b/arch/arm/mach-pxa/devices.c
index 2e0425404de5..18fd177073f4 100644
--- a/arch/arm/mach-pxa/devices.c
+++ b/arch/arm/mach-pxa/devices.c
@@ -415,9 +415,29 @@ static struct resource pxa_rtc_resources[] = {
 	},
 };
 
+static struct resource sa1100_rtc_resources[] = {
+	[0] = {
+		.start  = 0x40900000,
+		.end	= 0x409000ff,
+		.flags  = IORESOURCE_MEM,
+	},
+	[1] = {
+		.start  = IRQ_RTC1Hz,
+		.end    = IRQ_RTC1Hz,
+		.flags  = IORESOURCE_IRQ,
+	},
+	[2] = {
+		.start  = IRQ_RTCAlrm,
+		.end    = IRQ_RTCAlrm,
+		.flags  = IORESOURCE_IRQ,
+	},
+};
+
 struct platform_device sa1100_device_rtc = {
 	.name		= "sa1100-rtc",
 	.id		= -1,
+	.num_resources  = ARRAY_SIZE(sa1100_rtc_resources),
+	.resource       = sa1100_rtc_resources,
 };
 
 struct platform_device pxa_device_rtc = {
@@ -1051,6 +1071,36 @@ struct platform_device pxa3xx_device_ssp4 = {
 };
 #endif /* CONFIG_PXA3xx || CONFIG_PXA95x */
 
+struct resource pxa_resource_gpio[] = {
+	{
+		.start	= 0x40e00000,
+		.end	= 0x40e0ffff,
+		.flags	= IORESOURCE_MEM,
+	}, {
+		.start	= IRQ_GPIO0,
+		.end	= IRQ_GPIO0,
+		.name	= "gpio0",
+		.flags	= IORESOURCE_IRQ,
+	}, {
+		.start	= IRQ_GPIO1,
+		.end	= IRQ_GPIO1,
+		.name	= "gpio1",
+		.flags	= IORESOURCE_IRQ,
+	}, {
+		.start	= IRQ_GPIO_2_x,
+		.end	= IRQ_GPIO_2_x,
+		.name	= "gpio_mux",
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
+struct platform_device pxa_device_gpio = {
+	.name		= "pxa-gpio",
+	.id		= -1,
+	.num_resources	= ARRAY_SIZE(pxa_resource_gpio),
+	.resource	= pxa_resource_gpio,
+};
+
 /* pxa2xx-spi platform-device ID equals respective SSP platform-device ID + 1.
  * See comment in arch/arm/mach-pxa/ssp.c::ssp_probe() */
 void __init pxa2xx_set_spi_info(unsigned id, struct pxa2xx_spi_master *info)
diff --git a/arch/arm/mach-pxa/devices.h b/arch/arm/mach-pxa/devices.h
index 2fd5a8b35757..1475db107254 100644
--- a/arch/arm/mach-pxa/devices.h
+++ b/arch/arm/mach-pxa/devices.h
@@ -16,6 +16,7 @@ extern struct platform_device pxa_device_ficp;
 extern struct platform_device sa1100_device_rtc;
 extern struct platform_device pxa_device_rtc;
 extern struct platform_device pxa_device_ac97;
+extern struct platform_device pxa_device_gpio;
 
 extern struct platform_device pxa27x_device_i2c_power;
 extern struct platform_device pxa27x_device_ohci;
diff --git a/arch/arm/mach-pxa/em-x270.c b/arch/arm/mach-pxa/em-x270.c
index bd396ba67af7..d80c0ba9a095 100644
--- a/arch/arm/mach-pxa/em-x270.c
+++ b/arch/arm/mach-pxa/em-x270.c
@@ -70,7 +70,7 @@
 /* common  GPIOs */
 #define GPIO11_NAND_CS		(11)
 #define GPIO41_ETHIRQ		(41)
-#define EM_X270_ETHIRQ		IRQ_GPIO(GPIO41_ETHIRQ)
+#define EM_X270_ETHIRQ		PXA_GPIO_TO_IRQ(GPIO41_ETHIRQ)
 #define GPIO115_WLAN_PWEN	(115)
 #define GPIO19_WLAN_STRAP	(19)
 #define GPIO9_USB_VBUS_EN	(9)
@@ -805,7 +805,7 @@ static struct spi_board_info em_x270_spi_devices[] __initdata = {
 		.modalias		= "libertas_spi",
 		.max_speed_hz		= 13000000,
 		.bus_num		= 2,
-		.irq			= IRQ_GPIO(116),
+		.irq			= PXA_GPIO_TO_IRQ(116),
 		.chip_select		= 0,
 		.controller_data	= &em_x270_libertas_chip,
 		.platform_data		= &em_x270_libertas_pdata,
@@ -1203,7 +1203,7 @@ static struct da903x_platform_data em_x270_da9030_info = {
 
 static struct i2c_board_info em_x270_i2c_pmic_info = {
 	I2C_BOARD_INFO("da9030", 0x49),
-	.irq = IRQ_GPIO(0),
+	.irq = PXA_GPIO_TO_IRQ(0),
 	.platform_data = &em_x270_da9030_info,
 };
 
diff --git a/arch/arm/mach-pxa/eseries.c b/arch/arm/mach-pxa/eseries.c
index 69473db97758..f79a610c62fc 100644
--- a/arch/arm/mach-pxa/eseries.c
+++ b/arch/arm/mach-pxa/eseries.c
@@ -119,8 +119,8 @@ struct resource eseries_tmio_resources[] = {
 		.flags  = IORESOURCE_MEM,
 	},
 	[1] = {
-		.start  = IRQ_GPIO(GPIO_ESERIES_TMIO_IRQ),
-		.end    = IRQ_GPIO(GPIO_ESERIES_TMIO_IRQ),
+		.start  = PXA_GPIO_TO_IRQ(GPIO_ESERIES_TMIO_IRQ),
+		.end    = PXA_GPIO_TO_IRQ(GPIO_ESERIES_TMIO_IRQ),
 		.flags  = IORESOURCE_IRQ,
 	},
 };
diff --git a/arch/arm/mach-pxa/hx4700.c b/arch/arm/mach-pxa/hx4700.c
index ce16bdae96de..fb9b62dcf4ca 100644
--- a/arch/arm/mach-pxa/hx4700.c
+++ b/arch/arm/mach-pxa/hx4700.c
@@ -252,8 +252,8 @@ static struct resource asic3_resources[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= gpio_to_irq(GPIO12_HX4700_ASIC3_IRQ),
-		.end	= gpio_to_irq(GPIO12_HX4700_ASIC3_IRQ),
+		.start	= PXA_GPIO_TO_IRQ(GPIO12_HX4700_ASIC3_IRQ),
+		.end	= PXA_GPIO_TO_IRQ(GPIO12_HX4700_ASIC3_IRQ),
 		.flags	= IORESOURCE_IRQ,
 	},
 	/* SD part */
@@ -263,8 +263,8 @@ static struct resource asic3_resources[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[3] = {
-		.start	= gpio_to_irq(GPIO66_HX4700_ASIC3_nSDIO_IRQ),
-		.end	= gpio_to_irq(GPIO66_HX4700_ASIC3_nSDIO_IRQ),
+		.start	= PXA_GPIO_TO_IRQ(GPIO66_HX4700_ASIC3_nSDIO_IRQ),
+		.end	= PXA_GPIO_TO_IRQ(GPIO66_HX4700_ASIC3_nSDIO_IRQ),
 		.flags	= IORESOURCE_IRQ,
 	},
 };
@@ -587,7 +587,7 @@ static struct spi_board_info tsc2046_board_info[] __initdata = {
 		.modalias        = "ads7846",
 		.bus_num         = 2,
 		.max_speed_hz    = 2600000, /* 100 kHz sample rate */
-		.irq             = gpio_to_irq(GPIO58_HX4700_TSC2046_nPENIRQ),
+		.irq             = PXA_GPIO_TO_IRQ(GPIO58_HX4700_TSC2046_nPENIRQ),
 		.platform_data   = &tsc2046_info,
 		.controller_data = &tsc2046_chip,
 	},
@@ -635,15 +635,15 @@ static struct resource power_supply_resources[] = {
 		.name  = "ac",
 		.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE |
 		         IORESOURCE_IRQ_LOWEDGE,
-		.start = gpio_to_irq(GPIOD9_nAC_IN),
-		.end   = gpio_to_irq(GPIOD9_nAC_IN),
+		.start = PXA_GPIO_TO_IRQ(GPIOD9_nAC_IN),
+		.end   = PXA_GPIO_TO_IRQ(GPIOD9_nAC_IN),
 	},
 	[1] = {
 		.name  = "usb",
 		.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE |
 		         IORESOURCE_IRQ_LOWEDGE,
-		.start = gpio_to_irq(GPIOD14_nUSBC_DETECT),
-		.end   = gpio_to_irq(GPIOD14_nUSBC_DETECT),
+		.start = PXA_GPIO_TO_IRQ(GPIOD14_nUSBC_DETECT),
+		.end   = PXA_GPIO_TO_IRQ(GPIOD14_nUSBC_DETECT),
 	},
 };
 
diff --git a/arch/arm/mach-pxa/icontrol.c b/arch/arm/mach-pxa/icontrol.c
index e239b82c99d7..67400192ed3b 100644
--- a/arch/arm/mach-pxa/icontrol.c
+++ b/arch/arm/mach-pxa/icontrol.c
@@ -86,7 +86,7 @@ static struct spi_board_info mcp251x_board_info[] = {
 		.chip_select     = 0,
 		.platform_data   = &mcp251x_info,
 		.controller_data = &mcp251x_chip_info1,
-		.irq             = gpio_to_irq(ICONTROL_MCP251x_nIRQ1)
+		.irq             = PXA_GPIO_TO_IRQ(ICONTROL_MCP251x_nIRQ1)
 	},
 	{
 		.modalias        = "mcp2515",
@@ -95,7 +95,7 @@ static struct spi_board_info mcp251x_board_info[] = {
 		.chip_select     = 1,
 		.platform_data   = &mcp251x_info,
 		.controller_data = &mcp251x_chip_info2,
-		.irq             = gpio_to_irq(ICONTROL_MCP251x_nIRQ2)
+		.irq             = PXA_GPIO_TO_IRQ(ICONTROL_MCP251x_nIRQ2)
 	},
 	{
 		.modalias        = "mcp2515",
@@ -104,7 +104,7 @@ static struct spi_board_info mcp251x_board_info[] = {
 		.chip_select     = 0,
 		.platform_data   = &mcp251x_info,
 		.controller_data = &mcp251x_chip_info3,
-		.irq             = gpio_to_irq(ICONTROL_MCP251x_nIRQ3)
+		.irq             = PXA_GPIO_TO_IRQ(ICONTROL_MCP251x_nIRQ3)
 	},
 	{
 		.modalias        = "mcp2515",
@@ -113,7 +113,7 @@ static struct spi_board_info mcp251x_board_info[] = {
 		.chip_select     = 1,
 		.platform_data   = &mcp251x_info,
 		.controller_data = &mcp251x_chip_info4,
-		.irq             = gpio_to_irq(ICONTROL_MCP251x_nIRQ4)
+		.irq             = PXA_GPIO_TO_IRQ(ICONTROL_MCP251x_nIRQ4)
 	}
 };
 
diff --git a/arch/arm/mach-pxa/idp.c b/arch/arm/mach-pxa/idp.c
index fbabd84e110c..8af1840e12cc 100644
--- a/arch/arm/mach-pxa/idp.c
+++ b/arch/arm/mach-pxa/idp.c
@@ -75,8 +75,8 @@ static struct resource smc91x_resources[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= IRQ_GPIO(4),
-		.end	= IRQ_GPIO(4),
+		.start	= PXA_GPIO_TO_IRQ(4),
+		.end	= PXA_GPIO_TO_IRQ(4),
 		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	}
 };
diff --git a/arch/arm/mach-pxa/include/mach/balloon3.h b/arch/arm/mach-pxa/include/mach/balloon3.h
index 6d7eab3d0867..f02fa1e6ba86 100644
--- a/arch/arm/mach-pxa/include/mach/balloon3.h
+++ b/arch/arm/mach-pxa/include/mach/balloon3.h
@@ -172,9 +172,9 @@ enum balloon3_features {
 /* Balloon3 Interrupts */
 #define BALLOON3_IRQ(x)		(IRQ_BOARD_START + (x))
 
-#define BALLOON3_AUX_NIRQ	IRQ_GPIO(BALLOON3_GPIO_AUX_NIRQ)
-#define BALLOON3_CODEC_IRQ	IRQ_GPIO(BALLOON3_GPIO_CODEC_IRQ)
-#define BALLOON3_S0_CD_IRQ	IRQ_GPIO(BALLOON3_GPIO_S0_CD)
+#define BALLOON3_AUX_NIRQ	PXA_GPIO_TO_IRQ(BALLOON3_GPIO_AUX_NIRQ)
+#define BALLOON3_CODEC_IRQ	PXA_GPIO_TO_IRQ(BALLOON3_GPIO_CODEC_IRQ)
+#define BALLOON3_S0_CD_IRQ	PXA_GPIO_TO_IRQ(BALLOON3_GPIO_S0_CD)
 
 #define BALLOON3_NR_IRQS	(IRQ_BOARD_START + 16)
 
diff --git a/arch/arm/mach-pxa/include/mach/corgi.h b/arch/arm/mach-pxa/include/mach/corgi.h
index 5dfd1195a5a7..f3c3493b468d 100644
--- a/arch/arm/mach-pxa/include/mach/corgi.h
+++ b/arch/arm/mach-pxa/include/mach/corgi.h
@@ -66,18 +66,18 @@
 /*
  * Corgi Interrupts
  */
-#define CORGI_IRQ_GPIO_KEY_INT		IRQ_GPIO(0)
-#define CORGI_IRQ_GPIO_AC_IN		IRQ_GPIO(1)
-#define CORGI_IRQ_GPIO_WAKEUP		IRQ_GPIO(3)
-#define CORGI_IRQ_GPIO_AK_INT		IRQ_GPIO(4)
-#define CORGI_IRQ_GPIO_TP_INT		IRQ_GPIO(5)
-#define CORGI_IRQ_GPIO_nSD_DETECT	IRQ_GPIO(9)
-#define CORGI_IRQ_GPIO_nSD_INT		IRQ_GPIO(10)
-#define CORGI_IRQ_GPIO_MAIN_BAT_LOW	IRQ_GPIO(11)
-#define CORGI_IRQ_GPIO_CF_CD		IRQ_GPIO(14)
-#define CORGI_IRQ_GPIO_CHRG_FULL	IRQ_GPIO(16)	/* Battery fully charged */
-#define CORGI_IRQ_GPIO_CF_IRQ		IRQ_GPIO(17)
-#define CORGI_IRQ_GPIO_KEY_SENSE(a)	IRQ_GPIO(58+(a))	/* Keyboard Sense lines */
+#define CORGI_IRQ_GPIO_KEY_INT		PXA_GPIO_TO_IRQ(0)
+#define CORGI_IRQ_GPIO_AC_IN		PXA_GPIO_TO_IRQ(1)
+#define CORGI_IRQ_GPIO_WAKEUP		PXA_GPIO_TO_IRQ(3)
+#define CORGI_IRQ_GPIO_AK_INT		PXA_GPIO_TO_IRQ(4)
+#define CORGI_IRQ_GPIO_TP_INT		PXA_GPIO_TO_IRQ(5)
+#define CORGI_IRQ_GPIO_nSD_DETECT	PXA_GPIO_TO_IRQ(9)
+#define CORGI_IRQ_GPIO_nSD_INT		PXA_GPIO_TO_IRQ(10)
+#define CORGI_IRQ_GPIO_MAIN_BAT_LOW	PXA_GPIO_TO_IRQ(11)
+#define CORGI_IRQ_GPIO_CF_CD		PXA_GPIO_TO_IRQ(14)
+#define CORGI_IRQ_GPIO_CHRG_FULL	PXA_GPIO_TO_IRQ(16)	/* Battery fully charged */
+#define CORGI_IRQ_GPIO_CF_IRQ		PXA_GPIO_TO_IRQ(17)
+#define CORGI_IRQ_GPIO_KEY_SENSE(a)	PXA_GPIO_TO_IRQ(58+(a))	/* Keyboard Sense lines */
 
 
 /*
@@ -98,7 +98,7 @@
 			CORGI_SCP_MIC_BIAS )
 #define CORGI_SCOOP_IO_OUT	( CORGI_SCP_MUTE_L | CORGI_SCP_MUTE_R )
 
-#define CORGI_SCOOP_GPIO_BASE		(NR_BUILTIN_GPIO)
+#define CORGI_SCOOP_GPIO_BASE		(PXA_NR_BUILTIN_GPIO)
 #define CORGI_GPIO_LED_GREEN		(CORGI_SCOOP_GPIO_BASE + 0)
 #define CORGI_GPIO_SWA			(CORGI_SCOOP_GPIO_BASE + 1)  /* Hinge Switch A */
 #define CORGI_GPIO_SWB			(CORGI_SCOOP_GPIO_BASE + 2)  /* Hinge Switch B */
diff --git a/arch/arm/mach-pxa/include/mach/csb726.h b/arch/arm/mach-pxa/include/mach/csb726.h
index 747ab1a71f2f..2628e7b72116 100644
--- a/arch/arm/mach-pxa/include/mach/csb726.h
+++ b/arch/arm/mach-pxa/include/mach/csb726.h
@@ -19,8 +19,8 @@
 #define CSB726_FLASH_SIZE	(64 * 1024 * 1024)
 #define CSB726_FLASH_uMON	(8 * 1024 * 1024)
 
-#define CSB726_IRQ_LAN		gpio_to_irq(CSB726_GPIO_IRQ_LAN)
-#define CSB726_IRQ_SM501	gpio_to_irq(CSB726_GPIO_IRQ_SM501)
+#define CSB726_IRQ_LAN		PXA_GPIO_TO_IRQ(CSB726_GPIO_IRQ_LAN)
+#define CSB726_IRQ_SM501	PXA_GPIO_TO_IRQ(CSB726_GPIO_IRQ_SM501)
 
 #endif
 
diff --git a/arch/arm/mach-pxa/include/mach/gpio-pxa.h b/arch/arm/mach-pxa/include/mach/gpio-pxa.h
deleted file mode 100644
index 41b4c93a96c2..000000000000
--- a/arch/arm/mach-pxa/include/mach/gpio-pxa.h
+++ /dev/null
@@ -1,133 +0,0 @@
-/*
- * Written by Philipp Zabel <philipp.zabel@gmail.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-#ifndef __MACH_PXA_GPIO_PXA_H
-#define __MACH_PXA_GPIO_PXA_H
-
-#include <mach/irqs.h>
-#include <mach/hardware.h>
-
-#define GPIO_REGS_VIRT	io_p2v(0x40E00000)
-
-#define BANK_OFF(n)	(((n) < 3) ? (n) << 2 : 0x100 + (((n) - 3) << 2))
-#define GPIO_REG(x)	(*(volatile u32 *)(GPIO_REGS_VIRT + (x)))
-
-/* GPIO Pin Level Registers */
-#define GPLR0		GPIO_REG(BANK_OFF(0) + 0x00)
-#define GPLR1		GPIO_REG(BANK_OFF(1) + 0x00)
-#define GPLR2		GPIO_REG(BANK_OFF(2) + 0x00)
-#define GPLR3		GPIO_REG(BANK_OFF(3) + 0x00)
-
-/* GPIO Pin Direction Registers */
-#define GPDR0		GPIO_REG(BANK_OFF(0) + 0x0c)
-#define GPDR1		GPIO_REG(BANK_OFF(1) + 0x0c)
-#define GPDR2		GPIO_REG(BANK_OFF(2) + 0x0c)
-#define GPDR3		GPIO_REG(BANK_OFF(3) + 0x0c)
-
-/* GPIO Pin Output Set Registers */
-#define GPSR0		GPIO_REG(BANK_OFF(0) + 0x18)
-#define GPSR1		GPIO_REG(BANK_OFF(1) + 0x18)
-#define GPSR2		GPIO_REG(BANK_OFF(2) + 0x18)
-#define GPSR3		GPIO_REG(BANK_OFF(3) + 0x18)
-
-/* GPIO Pin Output Clear Registers */
-#define GPCR0		GPIO_REG(BANK_OFF(0) + 0x24)
-#define GPCR1		GPIO_REG(BANK_OFF(1) + 0x24)
-#define GPCR2		GPIO_REG(BANK_OFF(2) + 0x24)
-#define GPCR3		GPIO_REG(BANK_OFF(3) + 0x24)
-
-/* GPIO Rising Edge Detect Registers */
-#define GRER0		GPIO_REG(BANK_OFF(0) + 0x30)
-#define GRER1		GPIO_REG(BANK_OFF(1) + 0x30)
-#define GRER2		GPIO_REG(BANK_OFF(2) + 0x30)
-#define GRER3		GPIO_REG(BANK_OFF(3) + 0x30)
-
-/* GPIO Falling Edge Detect Registers */
-#define GFER0		GPIO_REG(BANK_OFF(0) + 0x3c)
-#define GFER1		GPIO_REG(BANK_OFF(1) + 0x3c)
-#define GFER2		GPIO_REG(BANK_OFF(2) + 0x3c)
-#define GFER3		GPIO_REG(BANK_OFF(3) + 0x3c)
-
-/* GPIO Edge Detect Status Registers */
-#define GEDR0		GPIO_REG(BANK_OFF(0) + 0x48)
-#define GEDR1		GPIO_REG(BANK_OFF(1) + 0x48)
-#define GEDR2		GPIO_REG(BANK_OFF(2) + 0x48)
-#define GEDR3		GPIO_REG(BANK_OFF(3) + 0x48)
-
-/* GPIO Alternate Function Select Registers */
-#define GAFR0_L		GPIO_REG(0x0054)
-#define GAFR0_U		GPIO_REG(0x0058)
-#define GAFR1_L		GPIO_REG(0x005C)
-#define GAFR1_U		GPIO_REG(0x0060)
-#define GAFR2_L		GPIO_REG(0x0064)
-#define GAFR2_U		GPIO_REG(0x0068)
-#define GAFR3_L		GPIO_REG(0x006C)
-#define GAFR3_U		GPIO_REG(0x0070)
-
-/* More handy macros.  The argument is a literal GPIO number. */
-
-#define GPIO_bit(x)	(1 << ((x) & 0x1f))
-
-#define GPLR(x)		GPIO_REG(BANK_OFF((x) >> 5) + 0x00)
-#define GPDR(x)		GPIO_REG(BANK_OFF((x) >> 5) + 0x0c)
-#define GPSR(x)		GPIO_REG(BANK_OFF((x) >> 5) + 0x18)
-#define GPCR(x)		GPIO_REG(BANK_OFF((x) >> 5) + 0x24)
-#define GRER(x)		GPIO_REG(BANK_OFF((x) >> 5) + 0x30)
-#define GFER(x)		GPIO_REG(BANK_OFF((x) >> 5) + 0x3c)
-#define GEDR(x)		GPIO_REG(BANK_OFF((x) >> 5) + 0x48)
-#define GAFR(x)		GPIO_REG(0x54 + (((x) & 0x70) >> 2))
-
-
-#define NR_BUILTIN_GPIO		PXA_GPIO_IRQ_NUM
-
-#define gpio_to_bank(gpio)	((gpio) >> 5)
-
-#ifdef CONFIG_CPU_PXA26x
-/* GPIO86/87/88/89 on PXA26x have their direction bits in GPDR2 inverted,
- * as well as their Alternate Function value being '1' for GPIO in GAFRx.
- */
-static inline int __gpio_is_inverted(unsigned gpio)
-{
-	return cpu_is_pxa25x() && gpio > 85;
-}
-#else
-static inline int __gpio_is_inverted(unsigned gpio) { return 0; }
-#endif
-
-/*
- * On PXA25x and PXA27x, GAFRx and GPDRx together decide the alternate
- * function of a GPIO, and GPDRx cannot be altered once configured. It
- * is attributed as "occupied" here (I know this terminology isn't
- * accurate, you are welcome to propose a better one :-)
- */
-static inline int __gpio_is_occupied(unsigned gpio)
-{
-	if (cpu_is_pxa27x() || cpu_is_pxa25x()) {
-		int af = (GAFR(gpio) >> ((gpio & 0xf) * 2)) & 0x3;
-		int dir = GPDR(gpio) & GPIO_bit(gpio);
-
-		if (__gpio_is_inverted(gpio))
-			return af != 1 || dir == 0;
-		else
-			return af != 0 || dir != 0;
-	} else
-		return GPDR(gpio) & GPIO_bit(gpio);
-}
-
-#include <plat/gpio-pxa.h>
-#endif /* __MACH_PXA_GPIO_PXA_H */
diff --git a/arch/arm/mach-pxa/include/mach/gpio.h b/arch/arm/mach-pxa/include/mach/gpio.h
index 004cade7bb13..0248e433bc98 100644
--- a/arch/arm/mach-pxa/include/mach/gpio.h
+++ b/arch/arm/mach-pxa/include/mach/gpio.h
@@ -25,24 +25,8 @@
 #define __ASM_ARCH_PXA_GPIO_H
 
 #include <asm-generic/gpio.h>
-/* The defines for the driver are needed for the accelerated accessors */
-#include "gpio-pxa.h"
 
-#define gpio_to_irq(gpio)	IRQ_GPIO(gpio)
+#include <mach/irqs.h>
+#include <mach/hardware.h>
 
-static inline int irq_to_gpio(unsigned int irq)
-{
-	int gpio;
-
-	if (irq == IRQ_GPIO0 || irq == IRQ_GPIO1)
-		return irq - IRQ_GPIO0;
-
-	gpio = irq - PXA_GPIO_IRQ_BASE;
-	if (gpio >= 2 && gpio < NR_BUILTIN_GPIO)
-		return gpio;
-
-	return -1;
-}
-
-#include <plat/gpio.h>
 #endif
diff --git a/arch/arm/mach-pxa/include/mach/gumstix.h b/arch/arm/mach-pxa/include/mach/gumstix.h
index 9b898680b206..dba14b6503ad 100644
--- a/arch/arm/mach-pxa/include/mach/gumstix.h
+++ b/arch/arm/mach-pxa/include/mach/gumstix.h
@@ -24,7 +24,7 @@ has detected a cable insertion; driven low otherwise. */
 #define GPIO_GUMSTIX_USB_GPIOx		41
 
 /* usb state change */
-#define GUMSTIX_USB_INTR_IRQ		IRQ_GPIO(GPIO_GUMSTIX_USB_GPIOn)
+#define GUMSTIX_USB_INTR_IRQ		PXA_GPIO_TO_IRQ(GPIO_GUMSTIX_USB_GPIOn)
 
 #define GPIO_GUMSTIX_USB_GPIOn_MD	(GPIO_GUMSTIX_USB_GPIOn | GPIO_IN)
 #define GPIO_GUMSTIX_USB_GPIOx_CON_MD	(GPIO_GUMSTIX_USB_GPIOx | GPIO_OUT)
@@ -35,7 +35,7 @@ has detected a cable insertion; driven low otherwise. */
  */
 #define GUMSTIX_GPIO_nSD_WP		22 /* SD Write Protect */
 #define GUMSTIX_GPIO_nSD_DETECT		11 /* MMC/SD Card Detect */
-#define GUMSTIX_IRQ_GPIO_nSD_DETECT	IRQ_GPIO(GUMSTIX_GPIO_nSD_DETECT)
+#define GUMSTIX_IRQ_GPIO_nSD_DETECT	PXA_GPIO_TO_IRQ(GUMSTIX_GPIO_nSD_DETECT)
 
 /*
  * SMC Ethernet definitions
@@ -49,10 +49,10 @@ has detected a cable insertion; driven low otherwise. */
 
 #define GPIO_GUMSTIX_ETH0		36
 #define GPIO_GUMSTIX_ETH0_MD		(GPIO_GUMSTIX_ETH0 | GPIO_IN)
-#define GUMSTIX_ETH0_IRQ		IRQ_GPIO(GPIO_GUMSTIX_ETH0)
+#define GUMSTIX_ETH0_IRQ		PXA_GPIO_TO_IRQ(GPIO_GUMSTIX_ETH0)
 #define GPIO_GUMSTIX_ETH1		27
 #define GPIO_GUMSTIX_ETH1_MD		(GPIO_GUMSTIX_ETH1 | GPIO_IN)
-#define GUMSTIX_ETH1_IRQ		IRQ_GPIO(GPIO_GUMSTIX_ETH1)
+#define GUMSTIX_ETH1_IRQ		PXA_GPIO_TO_IRQ(GPIO_GUMSTIX_ETH1)
 
 
 /* CF reset line */
@@ -63,18 +63,18 @@ has detected a cable insertion; driven low otherwise. */
 #define GPIO4_nSTSCHG			GPIO4_nBVD1
 #define GPIO11_nCD			11
 #define GPIO26_PRDY_nBSY		26
-#define GUMSTIX_S0_nSTSCHG_IRQ		IRQ_GPIO(GPIO4_nSTSCHG)
-#define GUMSTIX_S0_nCD_IRQ		IRQ_GPIO(GPIO11_nCD)
-#define GUMSTIX_S0_PRDY_nBSY_IRQ	IRQ_GPIO(GPIO26_PRDY_nBSY)
+#define GUMSTIX_S0_nSTSCHG_IRQ		PXA_GPIO_TO_IRQ(GPIO4_nSTSCHG)
+#define GUMSTIX_S0_nCD_IRQ		PXA_GPIO_TO_IRQ(GPIO11_nCD)
+#define GUMSTIX_S0_PRDY_nBSY_IRQ	PXA_GPIO_TO_IRQ(GPIO26_PRDY_nBSY)
 
 /* CF slot 1 */
 #define GPIO18_nBVD1			18
 #define GPIO18_nSTSCHG			GPIO18_nBVD1
 #define GPIO36_nCD			36
 #define GPIO27_PRDY_nBSY		27
-#define GUMSTIX_S1_nSTSCHG_IRQ		IRQ_GPIO(GPIO18_nSTSCHG)
-#define GUMSTIX_S1_nCD_IRQ		IRQ_GPIO(GPIO36_nCD)
-#define GUMSTIX_S1_PRDY_nBSY_IRQ	IRQ_GPIO(GPIO27_PRDY_nBSY)
+#define GUMSTIX_S1_nSTSCHG_IRQ		PXA_GPIO_TO_IRQ(GPIO18_nSTSCHG)
+#define GUMSTIX_S1_nCD_IRQ		PXA_GPIO_TO_IRQ(GPIO36_nCD)
+#define GUMSTIX_S1_PRDY_nBSY_IRQ	PXA_GPIO_TO_IRQ(GPIO27_PRDY_nBSY)
 
 /* CF GPIO line modes */
 #define GPIO4_nSTSCHG_MD		(GPIO4_nSTSCHG | GPIO_IN)
diff --git a/arch/arm/mach-pxa/include/mach/hx4700.h b/arch/arm/mach-pxa/include/mach/hx4700.h
index 37408449ec25..8bc02913517c 100644
--- a/arch/arm/mach-pxa/include/mach/hx4700.h
+++ b/arch/arm/mach-pxa/include/mach/hx4700.h
@@ -15,7 +15,7 @@
 #include <linux/gpio.h>
 #include <linux/mfd/asic3.h>
 
-#define HX4700_ASIC3_GPIO_BASE	NR_BUILTIN_GPIO
+#define HX4700_ASIC3_GPIO_BASE	PXA_NR_BUILTIN_GPIO
 #define HX4700_EGPIO_BASE	(HX4700_ASIC3_GPIO_BASE + ASIC3_NUM_GPIOS)
 #define HX4700_NR_IRQS		(IRQ_BOARD_START + 70)
 
diff --git a/arch/arm/mach-pxa/include/mach/idp.h b/arch/arm/mach-pxa/include/mach/idp.h
index 5eff96fcc944..22a96f87232b 100644
--- a/arch/arm/mach-pxa/include/mach/idp.h
+++ b/arch/arm/mach-pxa/include/mach/idp.h
@@ -131,28 +131,26 @@
 #define PCC_VS2		(1 << 1)
 #define PCC_VS1		(1 << 0)
 
-#define PCC_DETECT(x)	(GPLR(7 + (x)) & GPIO_bit(7 + (x)))
-
 /* A listing of interrupts used by external hardware devices */
 
-#define TOUCH_PANEL_IRQ			IRQ_GPIO(5)
-#define IDE_IRQ				IRQ_GPIO(21)
+#define TOUCH_PANEL_IRQ			PXA_GPIO_TO_IRQ(5)
+#define IDE_IRQ				PXA_GPIO_TO_IRQ(21)
 
 #define TOUCH_PANEL_IRQ_EDGE		IRQ_TYPE_EDGE_FALLING
 
-#define ETHERNET_IRQ			IRQ_GPIO(4)
+#define ETHERNET_IRQ			PXA_GPIO_TO_IRQ(4)
 #define ETHERNET_IRQ_EDGE		IRQ_TYPE_EDGE_RISING
 
 #define IDE_IRQ_EDGE			IRQ_TYPE_EDGE_RISING
 
-#define PCMCIA_S0_CD_VALID		IRQ_GPIO(7)
+#define PCMCIA_S0_CD_VALID		PXA_GPIO_TO_IRQ(7)
 #define PCMCIA_S0_CD_VALID_EDGE		IRQ_TYPE_EDGE_BOTH
 
-#define PCMCIA_S1_CD_VALID		IRQ_GPIO(8)
+#define PCMCIA_S1_CD_VALID		PXA_GPIO_TO_IRQ(8)
 #define PCMCIA_S1_CD_VALID_EDGE		IRQ_TYPE_EDGE_BOTH
 
-#define PCMCIA_S0_RDYINT		IRQ_GPIO(19)
-#define PCMCIA_S1_RDYINT		IRQ_GPIO(22)
+#define PCMCIA_S0_RDYINT		PXA_GPIO_TO_IRQ(19)
+#define PCMCIA_S1_RDYINT		PXA_GPIO_TO_IRQ(22)
 
 
 /*
diff --git a/arch/arm/mach-pxa/include/mach/irqs.h b/arch/arm/mach-pxa/include/mach/irqs.h
index 7cc5a781e99e..32975adf3ca4 100644
--- a/arch/arm/mach-pxa/include/mach/irqs.h
+++ b/arch/arm/mach-pxa/include/mach/irqs.h
@@ -88,10 +88,8 @@
 #define IRQ_U2P		PXA_IRQ(93)	/* USB PHY D+/D- Lines (PXA935) */
 
 #define PXA_GPIO_IRQ_BASE	PXA_IRQ(96)
-#define PXA_GPIO_IRQ_NUM	(192)
-
-#define GPIO_2_x_TO_IRQ(x)	(PXA_GPIO_IRQ_BASE + (x))
-#define IRQ_GPIO(x)	(((x) < 2) ? (IRQ_GPIO0 + (x)) : GPIO_2_x_TO_IRQ(x))
+#define PXA_NR_BUILTIN_GPIO	(192)
+#define PXA_GPIO_TO_IRQ(x)	(PXA_GPIO_IRQ_BASE + (x))
 
 /*
  * The following interrupts are for board specific purposes. Since
@@ -100,7 +98,7 @@
  * By default, no board IRQ is reserved. It should be finished in
  * custom board since sparse IRQ is already enabled.
  */
-#define IRQ_BOARD_START		(PXA_GPIO_IRQ_BASE + PXA_GPIO_IRQ_NUM)
+#define IRQ_BOARD_START		(PXA_GPIO_IRQ_BASE + PXA_NR_BUILTIN_GPIO)
 
 #define NR_IRQS			(IRQ_BOARD_START)
 
diff --git a/arch/arm/mach-pxa/include/mach/littleton.h b/arch/arm/mach-pxa/include/mach/littleton.h
index b6238cbd8aea..8066be54e9f5 100644
--- a/arch/arm/mach-pxa/include/mach/littleton.h
+++ b/arch/arm/mach-pxa/include/mach/littleton.h
@@ -1,13 +1,11 @@
 #ifndef __ASM_ARCH_LITTLETON_H
 #define __ASM_ARCH_LITTLETON_H
 
-#include <mach/gpio-pxa.h>
-
 #define LITTLETON_ETH_PHYS	0x30000000
 
 #define LITTLETON_GPIO_LCD_CS	(17)
 
-#define EXT0_GPIO_BASE	(NR_BUILTIN_GPIO)
+#define EXT0_GPIO_BASE	(PXA_NR_BUILTIN_GPIO)
 #define EXT0_GPIO(x)	(EXT0_GPIO_BASE + (x))
 
 #define LITTLETON_NR_IRQS	(IRQ_BOARD_START + 8)
diff --git a/arch/arm/mach-pxa/include/mach/magician.h b/arch/arm/mach-pxa/include/mach/magician.h
index 7cbfc5d3f9df..ba6a6e1d29e9 100644
--- a/arch/arm/mach-pxa/include/mach/magician.h
+++ b/arch/arm/mach-pxa/include/mach/magician.h
@@ -78,7 +78,7 @@
  * CPLD EGPIOs
  */
 
-#define MAGICIAN_EGPIO_BASE			NR_BUILTIN_GPIO
+#define MAGICIAN_EGPIO_BASE			PXA_NR_BUILTIN_GPIO
 #define MAGICIAN_EGPIO(reg,bit) \
 	(MAGICIAN_EGPIO_BASE + 8*reg + bit)
 
diff --git a/arch/arm/mach-pxa/include/mach/palmld.h b/arch/arm/mach-pxa/include/mach/palmld.h
index ae536e86d8e8..2c4471336570 100644
--- a/arch/arm/mach-pxa/include/mach/palmld.h
+++ b/arch/arm/mach-pxa/include/mach/palmld.h
@@ -68,10 +68,10 @@
 /* 20, 53 and 86 are usb related too */
 
 /* INTERRUPTS */
-#define IRQ_GPIO_PALMLD_GPIO_RESET	IRQ_GPIO(GPIO_NR_PALMLD_GPIO_RESET)
-#define IRQ_GPIO_PALMLD_SD_DETECT_N	IRQ_GPIO(GPIO_NR_PALMLD_SD_DETECT_N)
-#define IRQ_GPIO_PALMLD_WM9712_IRQ	IRQ_GPIO(GPIO_NR_PALMLD_WM9712_IRQ)
-#define IRQ_GPIO_PALMLD_IDE_IRQ		IRQ_GPIO(GPIO_NR_PALMLD_IDE_IRQ)
+#define IRQ_GPIO_PALMLD_GPIO_RESET	PXA_GPIO_TO_IRQ(GPIO_NR_PALMLD_GPIO_RESET)
+#define IRQ_GPIO_PALMLD_SD_DETECT_N	PXA_GPIO_TO_IRQ(GPIO_NR_PALMLD_SD_DETECT_N)
+#define IRQ_GPIO_PALMLD_WM9712_IRQ	PXA_GPIO_TO_IRQ(GPIO_NR_PALMLD_WM9712_IRQ)
+#define IRQ_GPIO_PALMLD_IDE_IRQ		PXA_GPIO_TO_IRQ(GPIO_NR_PALMLD_IDE_IRQ)
 
 
 /** HERE ARE INIT VALUES **/
diff --git a/arch/arm/mach-pxa/include/mach/palmt5.h b/arch/arm/mach-pxa/include/mach/palmt5.h
index 6baf7469d4ec..0bd4f036c72f 100644
--- a/arch/arm/mach-pxa/include/mach/palmt5.h
+++ b/arch/arm/mach-pxa/include/mach/palmt5.h
@@ -48,10 +48,10 @@
 #define GPIO_NR_PALMT5_BT_RESET			83
 
 /* INTERRUPTS */
-#define IRQ_GPIO_PALMT5_SD_DETECT_N	IRQ_GPIO(GPIO_NR_PALMT5_SD_DETECT_N)
-#define IRQ_GPIO_PALMT5_WM9712_IRQ	IRQ_GPIO(GPIO_NR_PALMT5_WM9712_IRQ)
-#define IRQ_GPIO_PALMT5_USB_DETECT	IRQ_GPIO(GPIO_NR_PALMT5_USB_DETECT)
-#define IRQ_GPIO_PALMT5_GPIO_RESET	IRQ_GPIO(GPIO_NR_PALMT5_GPIO_RESET)
+#define IRQ_GPIO_PALMT5_SD_DETECT_N	PXA_GPIO_TO_IRQ(GPIO_NR_PALMT5_SD_DETECT_N)
+#define IRQ_GPIO_PALMT5_WM9712_IRQ	PXA_GPIO_TO_IRQ(GPIO_NR_PALMT5_WM9712_IRQ)
+#define IRQ_GPIO_PALMT5_USB_DETECT	PXA_GPIO_TO_IRQ(GPIO_NR_PALMT5_USB_DETECT)
+#define IRQ_GPIO_PALMT5_GPIO_RESET	PXA_GPIO_TO_IRQ(GPIO_NR_PALMT5_GPIO_RESET)
 
 /** HERE ARE INIT VALUES **/
 
diff --git a/arch/arm/mach-pxa/include/mach/palmtc.h b/arch/arm/mach-pxa/include/mach/palmtc.h
index 3f9dd3fd4638..c383a21680b6 100644
--- a/arch/arm/mach-pxa/include/mach/palmtc.h
+++ b/arch/arm/mach-pxa/include/mach/palmtc.h
@@ -52,8 +52,8 @@
 #define GPIO_NR_PALMTC_IR_DISABLE	45
 
 /* IRQs */
-#define IRQ_GPIO_PALMTC_SD_DETECT_N	IRQ_GPIO(GPIO_NR_PALMTC_SD_DETECT_N)
-#define IRQ_GPIO_PALMTC_WLAN_READY	IRQ_GPIO(GPIO_NR_PALMTC_WLAN_READY)
+#define IRQ_GPIO_PALMTC_SD_DETECT_N	PXA_GPIO_TO_IRQ(GPIO_NR_PALMTC_SD_DETECT_N)
+#define IRQ_GPIO_PALMTC_WLAN_READY	PXA_GPIO_TO_IRQ(GPIO_NR_PALMTC_WLAN_READY)
 
 /* UCB1400 GPIOs */
 #define GPIO_NR_PALMTC_POWER_DETECT	(0x80 | 0x00)
diff --git a/arch/arm/mach-pxa/include/mach/palmtx.h b/arch/arm/mach-pxa/include/mach/palmtx.h
index 7074a6ed46c6..f2e530380253 100644
--- a/arch/arm/mach-pxa/include/mach/palmtx.h
+++ b/arch/arm/mach-pxa/include/mach/palmtx.h
@@ -62,10 +62,10 @@
 #define GPIO_NR_PALMTX_NAND_BUFFER_DIR		79
 
 /* INTERRUPTS */
-#define IRQ_GPIO_PALMTX_SD_DETECT_N	IRQ_GPIO(GPIO_NR_PALMTX_SD_DETECT_N)
-#define IRQ_GPIO_PALMTX_WM9712_IRQ	IRQ_GPIO(GPIO_NR_PALMTX_WM9712_IRQ)
-#define IRQ_GPIO_PALMTX_USB_DETECT	IRQ_GPIO(GPIO_NR_PALMTX_USB_DETECT)
-#define IRQ_GPIO_PALMTX_GPIO_RESET	IRQ_GPIO(GPIO_NR_PALMTX_GPIO_RESET)
+#define IRQ_GPIO_PALMTX_SD_DETECT_N	PXA_GPIO_TO_IRQ(GPIO_NR_PALMTX_SD_DETECT_N)
+#define IRQ_GPIO_PALMTX_WM9712_IRQ	PXA_GPIO_TO_IRQ(GPIO_NR_PALMTX_WM9712_IRQ)
+#define IRQ_GPIO_PALMTX_USB_DETECT	PXA_GPIO_TO_IRQ(GPIO_NR_PALMTX_USB_DETECT)
+#define IRQ_GPIO_PALMTX_GPIO_RESET	PXA_GPIO_TO_IRQ(GPIO_NR_PALMTX_GPIO_RESET)
 
 /** HERE ARE INIT VALUES **/
 
diff --git a/arch/arm/mach-pxa/include/mach/pcm027.h b/arch/arm/mach-pxa/include/mach/pcm027.h
index 4bac588478a8..6bf28de228bd 100644
--- a/arch/arm/mach-pxa/include/mach/pcm027.h
+++ b/arch/arm/mach-pxa/include/mach/pcm027.h
@@ -34,7 +34,7 @@
 
 /* I2C RTC */
 #define PCM027_RTC_IRQ_GPIO	0
-#define PCM027_RTC_IRQ		IRQ_GPIO(PCM027_RTC_IRQ_GPIO)
+#define PCM027_RTC_IRQ		PXA_GPIO_TO_IRQ(PCM027_RTC_IRQ_GPIO)
 #define PCM027_RTC_IRQ_EDGE	IRQ_TYPE_EDGE_FALLING
 #define ADR_PCM027_RTC		0x51	/* I2C address */
 
@@ -43,21 +43,21 @@
 
 /* Ethernet chip (SMSC91C111) */
 #define PCM027_ETH_IRQ_GPIO	52
-#define PCM027_ETH_IRQ		IRQ_GPIO(PCM027_ETH_IRQ_GPIO)
+#define PCM027_ETH_IRQ		PXA_GPIO_TO_IRQ(PCM027_ETH_IRQ_GPIO)
 #define PCM027_ETH_IRQ_EDGE	IRQ_TYPE_EDGE_RISING
 #define PCM027_ETH_PHYS		PXA_CS5_PHYS
 #define PCM027_ETH_SIZE		(1*1024*1024)
 
 /* CAN controller SJA1000 (unsupported yet) */
 #define PCM027_CAN_IRQ_GPIO	114
-#define PCM027_CAN_IRQ		IRQ_GPIO(PCM027_CAN_IRQ_GPIO)
+#define PCM027_CAN_IRQ		PXA_GPIO_TO_IRQ(PCM027_CAN_IRQ_GPIO)
 #define PCM027_CAN_IRQ_EDGE	IRQ_TYPE_EDGE_FALLING
 #define PCM027_CAN_PHYS		0x22000000
 #define PCM027_CAN_SIZE		0x100
 
 /* SPI GPIO expander (unsupported yet) */
 #define PCM027_EGPIO_IRQ_GPIO	27
-#define PCM027_EGPIO_IRQ	IRQ_GPIO(PCM027_EGPIO_IRQ_GPIO)
+#define PCM027_EGPIO_IRQ	PXA_GPIO_TO_IRQ(PCM027_EGPIO_IRQ_GPIO)
 #define PCM027_EGPIO_IRQ_EDGE	IRQ_TYPE_EDGE_FALLING
 #define PCM027_EGPIO_CS		24
 /*
diff --git a/arch/arm/mach-pxa/include/mach/pcm990_baseboard.h b/arch/arm/mach-pxa/include/mach/pcm990_baseboard.h
index 8a4383b776d7..d72791695b26 100644
--- a/arch/arm/mach-pxa/include/mach/pcm990_baseboard.h
+++ b/arch/arm/mach-pxa/include/mach/pcm990_baseboard.h
@@ -28,14 +28,14 @@
 
 /* CPLD's interrupt controller is connected to PCM-027 GPIO 9 */
 #define PCM990_CTRL_INT_IRQ_GPIO	9
-#define PCM990_CTRL_INT_IRQ		IRQ_GPIO(PCM990_CTRL_INT_IRQ_GPIO)
+#define PCM990_CTRL_INT_IRQ		PXA_GPIO_TO_IRQ(PCM990_CTRL_INT_IRQ_GPIO)
 #define PCM990_CTRL_INT_IRQ_EDGE	IRQ_TYPE_EDGE_RISING
 #define PCM990_CTRL_PHYS		PXA_CS1_PHYS	/* 16-Bit */
 #define PCM990_CTRL_BASE		0xea000000
 #define PCM990_CTRL_SIZE		(1*1024*1024)
 
 #define PCM990_CTRL_PWR_IRQ_GPIO	14
-#define PCM990_CTRL_PWR_IRQ		IRQ_GPIO(PCM990_CTRL_PWR_IRQ_GPIO)
+#define PCM990_CTRL_PWR_IRQ		PXA_GPIO_TO_IRQ(PCM990_CTRL_PWR_IRQ_GPIO)
 #define PCM990_CTRL_PWR_IRQ_EDGE	IRQ_TYPE_EDGE_RISING
 
 /* visible CPLD (U7) registers */
@@ -132,7 +132,7 @@
  * IDE
  */
 #define PCM990_IDE_IRQ_GPIO	13
-#define PCM990_IDE_IRQ		IRQ_GPIO(PCM990_IDE_IRQ_GPIO)
+#define PCM990_IDE_IRQ		PXA_GPIO_TO_IRQ(PCM990_IDE_IRQ_GPIO)
 #define PCM990_IDE_IRQ_EDGE	IRQ_TYPE_EDGE_RISING
 #define PCM990_IDE_PLD_PHYS	0x20000000	/* 16 bit wide */
 #define PCM990_IDE_PLD_BASE	0xee000000
@@ -188,11 +188,11 @@
  * Compact Flash
  */
 #define PCM990_CF_IRQ_GPIO	11
-#define PCM990_CF_IRQ		IRQ_GPIO(PCM990_CF_IRQ_GPIO)
+#define PCM990_CF_IRQ		PXA_GPIO_TO_IRQ(PCM990_CF_IRQ_GPIO)
 #define PCM990_CF_IRQ_EDGE	IRQ_TYPE_EDGE_RISING
 
 #define PCM990_CF_CD_GPIO	12
-#define PCM990_CF_CD		IRQ_GPIO(PCM990_CF_CD_GPIO)
+#define PCM990_CF_CD		PXA_GPIO_TO_IRQ(PCM990_CF_CD_GPIO)
 #define PCM990_CF_CD_EDGE	IRQ_TYPE_EDGE_RISING
 
 #define PCM990_CF_PLD_PHYS	0x30000000	/* 16 bit wide */
@@ -258,14 +258,14 @@
  * Wolfson AC97 Touch
  */
 #define PCM990_AC97_IRQ_GPIO	10
-#define PCM990_AC97_IRQ		IRQ_GPIO(PCM990_AC97_IRQ_GPIO)
+#define PCM990_AC97_IRQ		PXA_GPIO_TO_IRQ(PCM990_AC97_IRQ_GPIO)
 #define PCM990_AC97_IRQ_EDGE	IRQ_TYPE_EDGE_RISING
 
 /*
  * MMC phyCORE
  */
 #define PCM990_MMC0_IRQ_GPIO	9
-#define PCM990_MMC0_IRQ		IRQ_GPIO(PCM990_MMC0_IRQ_GPIO)
+#define PCM990_MMC0_IRQ		PXA_GPIO_TO_IRQ(PCM990_MMC0_IRQ_GPIO)
 #define PCM990_MMC0_IRQ_EDGE	IRQ_TYPE_EDGE_FALLING
 
 /*
diff --git a/arch/arm/mach-pxa/include/mach/poodle.h b/arch/arm/mach-pxa/include/mach/poodle.h
index 83d1cfd00fc9..f32ff75dcca8 100644
--- a/arch/arm/mach-pxa/include/mach/poodle.h
+++ b/arch/arm/mach-pxa/include/mach/poodle.h
@@ -47,18 +47,18 @@
 #define POODLE_GPIO_DISCHARGE_ON        (42) /* Enable battery discharge */
 
 /* PXA GPIOs */
-#define POODLE_IRQ_GPIO_ON_KEY		IRQ_GPIO(0)
-#define POODLE_IRQ_GPIO_AC_IN		IRQ_GPIO(1)
-#define POODLE_IRQ_GPIO_HP_IN		IRQ_GPIO(4)
-#define POODLE_IRQ_GPIO_CO		IRQ_GPIO(16)
-#define POODLE_IRQ_GPIO_TP_INT		IRQ_GPIO(5)
-#define POODLE_IRQ_GPIO_WAKEUP		IRQ_GPIO(11)
-#define POODLE_IRQ_GPIO_GA_INT		IRQ_GPIO(10)
-#define POODLE_IRQ_GPIO_CF_IRQ		IRQ_GPIO(17)
-#define POODLE_IRQ_GPIO_CF_CD		IRQ_GPIO(14)
-#define POODLE_IRQ_GPIO_nSD_INT		IRQ_GPIO(8)
-#define POODLE_IRQ_GPIO_nSD_DETECT	IRQ_GPIO(9)
-#define POODLE_IRQ_GPIO_MAIN_BAT_LOW	IRQ_GPIO(13)
+#define POODLE_IRQ_GPIO_ON_KEY		PXA_GPIO_TO_IRQ(0)
+#define POODLE_IRQ_GPIO_AC_IN		PXA_GPIO_TO_IRQ(1)
+#define POODLE_IRQ_GPIO_HP_IN		PXA_GPIO_TO_IRQ(4)
+#define POODLE_IRQ_GPIO_CO		PXA_GPIO_TO_IRQ(16)
+#define POODLE_IRQ_GPIO_TP_INT		PXA_GPIO_TO_IRQ(5)
+#define POODLE_IRQ_GPIO_WAKEUP		PXA_GPIO_TO_IRQ(11)
+#define POODLE_IRQ_GPIO_GA_INT		PXA_GPIO_TO_IRQ(10)
+#define POODLE_IRQ_GPIO_CF_IRQ		PXA_GPIO_TO_IRQ(17)
+#define POODLE_IRQ_GPIO_CF_CD		PXA_GPIO_TO_IRQ(14)
+#define POODLE_IRQ_GPIO_nSD_INT		PXA_GPIO_TO_IRQ(8)
+#define POODLE_IRQ_GPIO_nSD_DETECT	PXA_GPIO_TO_IRQ(9)
+#define POODLE_IRQ_GPIO_MAIN_BAT_LOW	PXA_GPIO_TO_IRQ(13)
 
 /* SCOOP GPIOs */
 #define POODLE_SCOOP_CHARGE_ON	SCOOP_GPCR_PA11
@@ -71,7 +71,7 @@
 #define POODLE_SCOOP_IO_DIR	( POODLE_SCOOP_VPEN | POODLE_SCOOP_HS_OUT )
 #define POODLE_SCOOP_IO_OUT	( 0 )
 
-#define POODLE_SCOOP_GPIO_BASE	(NR_BUILTIN_GPIO)
+#define POODLE_SCOOP_GPIO_BASE	(PXA_NR_BUILTIN_GPIO)
 #define POODLE_GPIO_CHARGE_ON	(POODLE_SCOOP_GPIO_BASE + 0)
 #define POODLE_GPIO_CP401	(POODLE_SCOOP_GPIO_BASE + 2)
 #define POODLE_GPIO_VPEN	(POODLE_SCOOP_GPIO_BASE + 7)
diff --git a/arch/arm/mach-pxa/include/mach/spitz.h b/arch/arm/mach-pxa/include/mach/spitz.h
index 685749a51c42..0bfe6507c95d 100644
--- a/arch/arm/mach-pxa/include/mach/spitz.h
+++ b/arch/arm/mach-pxa/include/mach/spitz.h
@@ -108,7 +108,7 @@
 #define SPITZ_SCP_SUS_CLR     (SPITZ_SCP_MUTE_L | SPITZ_SCP_MUTE_R | SPITZ_SCP_JK_A | SPITZ_SCP_ADC_TEMP_ON)
 #define SPITZ_SCP_SUS_SET     0
 
-#define SPITZ_SCP_GPIO_BASE	(NR_BUILTIN_GPIO)
+#define SPITZ_SCP_GPIO_BASE	(PXA_NR_BUILTIN_GPIO)
 #define SPITZ_GPIO_LED_GREEN	(SPITZ_SCP_GPIO_BASE + 0)
 #define SPITZ_GPIO_JK_B		(SPITZ_SCP_GPIO_BASE + 1)
 #define SPITZ_GPIO_CHRG_ON	(SPITZ_SCP_GPIO_BASE + 2)
@@ -140,7 +140,7 @@
                              SPITZ_SCP2_BACKLIGHT_CONT | SPITZ_SCP2_BACKLIGHT_ON | SPITZ_SCP2_MIC_BIAS)
 #define SPITZ_SCP2_SUS_SET  (SPITZ_SCP2_IR_ON | SPITZ_SCP2_RESERVED_1)
 
-#define SPITZ_SCP2_GPIO_BASE		(NR_BUILTIN_GPIO + 12)
+#define SPITZ_SCP2_GPIO_BASE		(PXA_NR_BUILTIN_GPIO + 12)
 #define SPITZ_GPIO_IR_ON		(SPITZ_SCP2_GPIO_BASE + 0)
 #define SPITZ_GPIO_AKIN_PULLUP		(SPITZ_SCP2_GPIO_BASE + 1)
 #define SPITZ_GPIO_RESERVED_1		(SPITZ_SCP2_GPIO_BASE + 2)
@@ -152,7 +152,7 @@
 #define SPITZ_GPIO_MIC_BIAS		(SPITZ_SCP2_GPIO_BASE + 8)
 
 /* Akita IO Expander GPIOs */
-#define AKITA_IOEXP_GPIO_BASE		(NR_BUILTIN_GPIO + 12)
+#define AKITA_IOEXP_GPIO_BASE		(PXA_NR_BUILTIN_GPIO + 12)
 #define AKITA_GPIO_RESERVED_0		(AKITA_IOEXP_GPIO_BASE + 0)
 #define AKITA_GPIO_RESERVED_1		(AKITA_IOEXP_GPIO_BASE + 1)
 #define AKITA_GPIO_MIC_BIAS		(AKITA_IOEXP_GPIO_BASE + 2)
@@ -164,23 +164,23 @@
 
 /* Spitz IRQ Definitions */
 
-#define SPITZ_IRQ_GPIO_KEY_INT        IRQ_GPIO(SPITZ_GPIO_KEY_INT)
-#define SPITZ_IRQ_GPIO_AC_IN          IRQ_GPIO(SPITZ_GPIO_AC_IN)
-#define SPITZ_IRQ_GPIO_AK_INT         IRQ_GPIO(SPITZ_GPIO_AK_INT)
-#define SPITZ_IRQ_GPIO_HP_IN          IRQ_GPIO(SPITZ_GPIO_HP_IN)
-#define SPITZ_IRQ_GPIO_TP_INT         IRQ_GPIO(SPITZ_GPIO_TP_INT)
-#define SPITZ_IRQ_GPIO_SYNC           IRQ_GPIO(SPITZ_GPIO_SYNC)
-#define SPITZ_IRQ_GPIO_ON_KEY         IRQ_GPIO(SPITZ_GPIO_ON_KEY)
-#define SPITZ_IRQ_GPIO_SWA            IRQ_GPIO(SPITZ_GPIO_SWA)
-#define SPITZ_IRQ_GPIO_SWB            IRQ_GPIO(SPITZ_GPIO_SWB)
-#define SPITZ_IRQ_GPIO_BAT_COVER      IRQ_GPIO(SPITZ_GPIO_BAT_COVER)
-#define SPITZ_IRQ_GPIO_FATAL_BAT      IRQ_GPIO(SPITZ_GPIO_FATAL_BAT)
-#define SPITZ_IRQ_GPIO_CO             IRQ_GPIO(SPITZ_GPIO_CO)
-#define SPITZ_IRQ_GPIO_CF_IRQ         IRQ_GPIO(SPITZ_GPIO_CF_IRQ)
-#define SPITZ_IRQ_GPIO_CF_CD          IRQ_GPIO(SPITZ_GPIO_CF_CD)
-#define SPITZ_IRQ_GPIO_CF2_IRQ        IRQ_GPIO(SPITZ_GPIO_CF2_IRQ)
-#define SPITZ_IRQ_GPIO_nSD_INT        IRQ_GPIO(SPITZ_GPIO_nSD_INT)
-#define SPITZ_IRQ_GPIO_nSD_DETECT     IRQ_GPIO(SPITZ_GPIO_nSD_DETECT)
+#define SPITZ_IRQ_GPIO_KEY_INT        PXA_GPIO_TO_IRQ(SPITZ_GPIO_KEY_INT)
+#define SPITZ_IRQ_GPIO_AC_IN          PXA_GPIO_TO_IRQ(SPITZ_GPIO_AC_IN)
+#define SPITZ_IRQ_GPIO_AK_INT         PXA_GPIO_TO_IRQ(SPITZ_GPIO_AK_INT)
+#define SPITZ_IRQ_GPIO_HP_IN          PXA_GPIO_TO_IRQ(SPITZ_GPIO_HP_IN)
+#define SPITZ_IRQ_GPIO_TP_INT         PXA_GPIO_TO_IRQ(SPITZ_GPIO_TP_INT)
+#define SPITZ_IRQ_GPIO_SYNC           PXA_GPIO_TO_IRQ(SPITZ_GPIO_SYNC)
+#define SPITZ_IRQ_GPIO_ON_KEY         PXA_GPIO_TO_IRQ(SPITZ_GPIO_ON_KEY)
+#define SPITZ_IRQ_GPIO_SWA            PXA_GPIO_TO_IRQ(SPITZ_GPIO_SWA)
+#define SPITZ_IRQ_GPIO_SWB            PXA_GPIO_TO_IRQ(SPITZ_GPIO_SWB)
+#define SPITZ_IRQ_GPIO_BAT_COVER      PXA_GPIO_TO_IRQ(SPITZ_GPIO_BAT_COVER)
+#define SPITZ_IRQ_GPIO_FATAL_BAT      PXA_GPIO_TO_IRQ(SPITZ_GPIO_FATAL_BAT)
+#define SPITZ_IRQ_GPIO_CO             PXA_GPIO_TO_IRQ(SPITZ_GPIO_CO)
+#define SPITZ_IRQ_GPIO_CF_IRQ         PXA_GPIO_TO_IRQ(SPITZ_GPIO_CF_IRQ)
+#define SPITZ_IRQ_GPIO_CF_CD          PXA_GPIO_TO_IRQ(SPITZ_GPIO_CF_CD)
+#define SPITZ_IRQ_GPIO_CF2_IRQ        PXA_GPIO_TO_IRQ(SPITZ_GPIO_CF2_IRQ)
+#define SPITZ_IRQ_GPIO_nSD_INT        PXA_GPIO_TO_IRQ(SPITZ_GPIO_nSD_INT)
+#define SPITZ_IRQ_GPIO_nSD_DETECT     PXA_GPIO_TO_IRQ(SPITZ_GPIO_nSD_DETECT)
 
 /*
  * Shared data structures
diff --git a/arch/arm/mach-pxa/include/mach/tosa.h b/arch/arm/mach-pxa/include/mach/tosa.h
index 1272c4b56ceb..2bb0e862598c 100644
--- a/arch/arm/mach-pxa/include/mach/tosa.h
+++ b/arch/arm/mach-pxa/include/mach/tosa.h
@@ -24,7 +24,7 @@
 /*
  * SCOOP2 internal GPIOs
  */
-#define TOSA_SCOOP_GPIO_BASE		NR_BUILTIN_GPIO
+#define TOSA_SCOOP_GPIO_BASE		PXA_NR_BUILTIN_GPIO
 #define TOSA_SCOOP_PXA_VCORE1		SCOOP_GPCR_PA11
 #define TOSA_GPIO_TC6393XB_REST_IN	(TOSA_SCOOP_GPIO_BASE + 1)
 #define TOSA_GPIO_IR_POWERDWN		(TOSA_SCOOP_GPIO_BASE + 2)
@@ -42,7 +42,7 @@
 /*
  * SCOOP2 jacket GPIOs
  */
-#define TOSA_SCOOP_JC_GPIO_BASE		(NR_BUILTIN_GPIO + 12)
+#define TOSA_SCOOP_JC_GPIO_BASE		(PXA_NR_BUILTIN_GPIO + 12)
 #define TOSA_GPIO_BT_LED		(TOSA_SCOOP_JC_GPIO_BASE + 0)
 #define TOSA_GPIO_NOTE_LED		(TOSA_SCOOP_JC_GPIO_BASE + 1)
 #define TOSA_GPIO_CHRG_ERR_LED		(TOSA_SCOOP_JC_GPIO_BASE + 2)
@@ -59,7 +59,7 @@
 /*
  * TC6393XB GPIOs
  */
-#define TOSA_TC6393XB_GPIO_BASE		(NR_BUILTIN_GPIO + 2 * 12)
+#define TOSA_TC6393XB_GPIO_BASE		(PXA_NR_BUILTIN_GPIO + 2 * 12)
 
 #define TOSA_GPIO_TG_ON			(TOSA_TC6393XB_GPIO_BASE + 0)
 #define TOSA_GPIO_L_MUTE		(TOSA_TC6393XB_GPIO_BASE + 1)
@@ -141,30 +141,30 @@
 /*
  * Interrupts
  */
-#define TOSA_IRQ_GPIO_WAKEUP        	IRQ_GPIO(TOSA_GPIO_WAKEUP)
-#define TOSA_IRQ_GPIO_AC_IN         	IRQ_GPIO(TOSA_GPIO_AC_IN)
-#define TOSA_IRQ_GPIO_RECORD_BTN    	IRQ_GPIO(TOSA_GPIO_RECORD_BTN)
-#define TOSA_IRQ_GPIO_SYNC          	IRQ_GPIO(TOSA_GPIO_SYNC)
-#define TOSA_IRQ_GPIO_USB_IN        	IRQ_GPIO(TOSA_GPIO_USB_IN)
-#define TOSA_IRQ_GPIO_JACKET_DETECT 	IRQ_GPIO(TOSA_GPIO_JACKET_DETECT)
-#define TOSA_IRQ_GPIO_nSD_INT       	IRQ_GPIO(TOSA_GPIO_nSD_INT)
-#define TOSA_IRQ_GPIO_nSD_DETECT    	IRQ_GPIO(TOSA_GPIO_nSD_DETECT)
-#define TOSA_IRQ_GPIO_BAT1_CRG      	IRQ_GPIO(TOSA_GPIO_BAT1_CRG)
-#define TOSA_IRQ_GPIO_CF_CD         	IRQ_GPIO(TOSA_GPIO_CF_CD)
-#define TOSA_IRQ_GPIO_BAT0_CRG      	IRQ_GPIO(TOSA_GPIO_BAT0_CRG)
-#define TOSA_IRQ_GPIO_TC6393XB_INT    	IRQ_GPIO(TOSA_GPIO_TC6393XB_INT)
-#define TOSA_IRQ_GPIO_BAT0_LOW      	IRQ_GPIO(TOSA_GPIO_BAT0_LOW)
-#define TOSA_IRQ_GPIO_EAR_IN        	IRQ_GPIO(TOSA_GPIO_EAR_IN)
-#define TOSA_IRQ_GPIO_CF_IRQ        	IRQ_GPIO(TOSA_GPIO_CF_IRQ)
-#define TOSA_IRQ_GPIO_ON_KEY        	IRQ_GPIO(TOSA_GPIO_ON_KEY)
-#define TOSA_IRQ_GPIO_VGA_LINE      	IRQ_GPIO(TOSA_GPIO_VGA_LINE)
-#define TOSA_IRQ_GPIO_TP_INT        	IRQ_GPIO(TOSA_GPIO_TP_INT)
-#define TOSA_IRQ_GPIO_JC_CF_IRQ     	IRQ_GPIO(TOSA_GPIO_JC_CF_IRQ)
-#define TOSA_IRQ_GPIO_BAT_LOCKED    	IRQ_GPIO(TOSA_GPIO_BAT_LOCKED)
-#define TOSA_IRQ_GPIO_BAT1_LOW      	IRQ_GPIO(TOSA_GPIO_BAT1_LOW)
-#define TOSA_IRQ_GPIO_KEY_SENSE(a)  	IRQ_GPIO(69+(a))
-
-#define TOSA_IRQ_GPIO_MAIN_BAT_LOW 	IRQ_GPIO(TOSA_GPIO_MAIN_BAT_LOW)
+#define TOSA_IRQ_GPIO_WAKEUP        	PXA_GPIO_TO_IRQ(TOSA_GPIO_WAKEUP)
+#define TOSA_IRQ_GPIO_AC_IN         	PXA_GPIO_TO_IRQ(TOSA_GPIO_AC_IN)
+#define TOSA_IRQ_GPIO_RECORD_BTN    	PXA_GPIO_TO_IRQ(TOSA_GPIO_RECORD_BTN)
+#define TOSA_IRQ_GPIO_SYNC          	PXA_GPIO_TO_IRQ(TOSA_GPIO_SYNC)
+#define TOSA_IRQ_GPIO_USB_IN        	PXA_GPIO_TO_IRQ(TOSA_GPIO_USB_IN)
+#define TOSA_IRQ_GPIO_JACKET_DETECT 	PXA_GPIO_TO_IRQ(TOSA_GPIO_JACKET_DETECT)
+#define TOSA_IRQ_GPIO_nSD_INT       	PXA_GPIO_TO_IRQ(TOSA_GPIO_nSD_INT)
+#define TOSA_IRQ_GPIO_nSD_DETECT    	PXA_GPIO_TO_IRQ(TOSA_GPIO_nSD_DETECT)
+#define TOSA_IRQ_GPIO_BAT1_CRG      	PXA_GPIO_TO_IRQ(TOSA_GPIO_BAT1_CRG)
+#define TOSA_IRQ_GPIO_CF_CD         	PXA_GPIO_TO_IRQ(TOSA_GPIO_CF_CD)
+#define TOSA_IRQ_GPIO_BAT0_CRG      	PXA_GPIO_TO_IRQ(TOSA_GPIO_BAT0_CRG)
+#define TOSA_IRQ_GPIO_TC6393XB_INT    	PXA_GPIO_TO_IRQ(TOSA_GPIO_TC6393XB_INT)
+#define TOSA_IRQ_GPIO_BAT0_LOW      	PXA_GPIO_TO_IRQ(TOSA_GPIO_BAT0_LOW)
+#define TOSA_IRQ_GPIO_EAR_IN        	PXA_GPIO_TO_IRQ(TOSA_GPIO_EAR_IN)
+#define TOSA_IRQ_GPIO_CF_IRQ        	PXA_GPIO_TO_IRQ(TOSA_GPIO_CF_IRQ)
+#define TOSA_IRQ_GPIO_ON_KEY        	PXA_GPIO_TO_IRQ(TOSA_GPIO_ON_KEY)
+#define TOSA_IRQ_GPIO_VGA_LINE      	PXA_GPIO_TO_IRQ(TOSA_GPIO_VGA_LINE)
+#define TOSA_IRQ_GPIO_TP_INT        	PXA_GPIO_TO_IRQ(TOSA_GPIO_TP_INT)
+#define TOSA_IRQ_GPIO_JC_CF_IRQ     	PXA_GPIO_TO_IRQ(TOSA_GPIO_JC_CF_IRQ)
+#define TOSA_IRQ_GPIO_BAT_LOCKED    	PXA_GPIO_TO_IRQ(TOSA_GPIO_BAT_LOCKED)
+#define TOSA_IRQ_GPIO_BAT1_LOW      	PXA_GPIO_TO_IRQ(TOSA_GPIO_BAT1_LOW)
+#define TOSA_IRQ_GPIO_KEY_SENSE(a)  	PXA_GPIO_TO_IRQ(69+(a))
+
+#define TOSA_IRQ_GPIO_MAIN_BAT_LOW 	PXA_GPIO_TO_IRQ(TOSA_GPIO_MAIN_BAT_LOW)
 
 #define TOSA_KEY_SYNC		KEY_102ND /* ??? */
 
diff --git a/arch/arm/mach-pxa/include/mach/trizeps4.h b/arch/arm/mach-pxa/include/mach/trizeps4.h
index 903e1a2e6641..d2ca01053f69 100644
--- a/arch/arm/mach-pxa/include/mach/trizeps4.h
+++ b/arch/arm/mach-pxa/include/mach/trizeps4.h
@@ -43,30 +43,30 @@
 
 /* Ethernet Controller Davicom DM9000 */
 #define GPIO_DM9000		101
-#define TRIZEPS4_ETH_IRQ	IRQ_GPIO(GPIO_DM9000)
+#define TRIZEPS4_ETH_IRQ	PXA_GPIO_TO_IRQ(GPIO_DM9000)
 
 /* UCB1400 audio / TS-controller */
 #define GPIO_UCB1400		1
-#define TRIZEPS4_UCB1400_IRQ	IRQ_GPIO(GPIO_UCB1400)
+#define TRIZEPS4_UCB1400_IRQ	PXA_GPIO_TO_IRQ(GPIO_UCB1400)
 
 /* PCMCIA socket Compact Flash */
 #define GPIO_PCD		11		/* PCMCIA Card Detect */
-#define TRIZEPS4_CD_IRQ		IRQ_GPIO(GPIO_PCD)
+#define TRIZEPS4_CD_IRQ		PXA_GPIO_TO_IRQ(GPIO_PCD)
 #define GPIO_PRDY		13		/* READY / nINT */
-#define TRIZEPS4_READY_NINT	IRQ_GPIO(GPIO_PRDY)
+#define TRIZEPS4_READY_NINT	PXA_GPIO_TO_IRQ(GPIO_PRDY)
 
 /* MMC socket */
 #define GPIO_MMC_DET		12
-#define TRIZEPS4_MMC_IRQ	IRQ_GPIO(GPIO_MMC_DET)
+#define TRIZEPS4_MMC_IRQ	PXA_GPIO_TO_IRQ(GPIO_MMC_DET)
 
 /* DOC NAND chip */
 #define GPIO_DOC_LOCK           94
 #define GPIO_DOC_IRQ            93
-#define TRIZEPS4_DOC_IRQ        IRQ_GPIO(GPIO_DOC_IRQ)
+#define TRIZEPS4_DOC_IRQ        PXA_GPIO_TO_IRQ(GPIO_DOC_IRQ)
 
 /* SPI interface */
 #define GPIO_SPI                53
-#define TRIZEPS4_SPI_IRQ        IRQ_GPIO(GPIO_SPI)
+#define TRIZEPS4_SPI_IRQ        PXA_GPIO_TO_IRQ(GPIO_SPI)
 
 /* LEDS using tx2 / rx2 */
 #define GPIO_SYS_BUSY_LED	46
@@ -74,7 +74,7 @@
 
 /* Off-module PIC on ConXS board */
 #define GPIO_PIC		0
-#define TRIZEPS4_PIC_IRQ	IRQ_GPIO(GPIO_PIC)
+#define TRIZEPS4_PIC_IRQ	PXA_GPIO_TO_IRQ(GPIO_PIC)
 
 #ifdef CONFIG_MACH_TRIZEPS_CONXS
 /* for CONXS base board define these registers */
diff --git a/arch/arm/mach-pxa/irq.c b/arch/arm/mach-pxa/irq.c
index 532c5d3a97d2..5dae15ea6718 100644
--- a/arch/arm/mach-pxa/irq.c
+++ b/arch/arm/mach-pxa/irq.c
@@ -22,7 +22,6 @@
 
 #include <mach/hardware.h>
 #include <mach/irqs.h>
-#include <mach/gpio-pxa.h>
 
 #include "generic.h"
 
@@ -92,44 +91,6 @@ static struct irq_chip pxa_internal_irq_chip = {
 	.irq_unmask	= pxa_unmask_irq,
 };
 
-/*
- * GPIO IRQs for GPIO 0 and 1
- */
-static int pxa_set_low_gpio_type(struct irq_data *d, unsigned int type)
-{
-	int gpio = d->irq - IRQ_GPIO0;
-
-	if (__gpio_is_occupied(gpio)) {
-		pr_err("%s failed: GPIO is configured\n", __func__);
-		return -EINVAL;
-	}
-
-	if (type & IRQ_TYPE_EDGE_RISING)
-		GRER0 |= GPIO_bit(gpio);
-	else
-		GRER0 &= ~GPIO_bit(gpio);
-
-	if (type & IRQ_TYPE_EDGE_FALLING)
-		GFER0 |= GPIO_bit(gpio);
-	else
-		GFER0 &= ~GPIO_bit(gpio);
-
-	return 0;
-}
-
-static void pxa_ack_low_gpio(struct irq_data *d)
-{
-	GEDR0 = (1 << (d->irq - IRQ_GPIO0));
-}
-
-static struct irq_chip pxa_low_gpio_chip = {
-	.name		= "GPIO-l",
-	.irq_ack	= pxa_ack_low_gpio,
-	.irq_mask	= pxa_mask_irq,
-	.irq_unmask	= pxa_unmask_irq,
-	.irq_set_type	= pxa_set_low_gpio_type,
-};
-
 asmlinkage void __exception_irq_entry icip_handle_irq(struct pt_regs *regs)
 {
 	uint32_t icip, icmr, mask;
@@ -160,26 +121,7 @@ asmlinkage void __exception_irq_entry ichp_handle_irq(struct pt_regs *regs)
 	} while (1);
 }
 
-static void __init pxa_init_low_gpio_irq(set_wake_t fn)
-{
-	int irq;
-
-	/* clear edge detection on GPIO 0 and 1 */
-	GFER0 &= ~0x3;
-	GRER0 &= ~0x3;
-	GEDR0 = 0x3;
-
-	for (irq = IRQ_GPIO0; irq <= IRQ_GPIO1; irq++) {
-		irq_set_chip_and_handler(irq, &pxa_low_gpio_chip,
-					 handle_edge_irq);
-		irq_set_chip_data(irq, irq_base(0));
-		set_irq_flags(irq, IRQF_VALID);
-	}
-
-	pxa_low_gpio_chip.irq_set_wake = fn;
-}
-
-void __init pxa_init_irq(int irq_nr, set_wake_t fn)
+void __init pxa_init_irq(int irq_nr, int (*fn)(struct irq_data *, unsigned int))
 {
 	int irq, i, n;
 
@@ -209,7 +151,6 @@ void __init pxa_init_irq(int irq_nr, set_wake_t fn)
 	__raw_writel(1, irq_base(0) + ICCR);
 
 	pxa_internal_irq_chip.irq_set_wake = fn;
-	pxa_init_low_gpio_irq(fn);
 }
 
 #ifdef CONFIG_PM
diff --git a/arch/arm/mach-pxa/littleton.c b/arch/arm/mach-pxa/littleton.c
index c337c7eed514..1fb86edb857c 100644
--- a/arch/arm/mach-pxa/littleton.c
+++ b/arch/arm/mach-pxa/littleton.c
@@ -124,8 +124,8 @@ static struct resource smc91x_resources[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO90)),
-		.end	= IRQ_GPIO(mfp_to_gpio(MFP_PIN_GPIO90)),
+		.start	= PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO90)),
+		.end	= PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO90)),
 		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
 	}
 };
@@ -396,7 +396,7 @@ static struct i2c_board_info littleton_i2c_info[] = {
 		.type		= "da9034",
 		.addr		= 0x34,
 		.platform_data	= &littleton_da9034_info,
-		.irq		= gpio_to_irq(mfp_to_gpio(MFP_PIN_GPIO18)),
+		.irq		= PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO18)),
 	},
 	[1] = {
 		.type		= "max7320",
diff --git a/arch/arm/mach-pxa/lpd270.c b/arch/arm/mach-pxa/lpd270.c
index 6119c015f393..cee9ce2fc0b5 100644
--- a/arch/arm/mach-pxa/lpd270.c
+++ b/arch/arm/mach-pxa/lpd270.c
@@ -152,8 +152,8 @@ static void __init lpd270_init_irq(void)
 					 handle_level_irq);
 		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
 	}
-	irq_set_chained_handler(IRQ_GPIO(0), lpd270_irq_handler);
-	irq_set_irq_type(IRQ_GPIO(0), IRQ_TYPE_EDGE_FALLING);
+	irq_set_chained_handler(PXA_GPIO_TO_IRQ(0), lpd270_irq_handler);
+	irq_set_irq_type(PXA_GPIO_TO_IRQ(0), IRQ_TYPE_EDGE_FALLING);
 }
 
 
diff --git a/arch/arm/mach-pxa/lubbock.c b/arch/arm/mach-pxa/lubbock.c
index 4b7a52871652..6ebd276aebeb 100644
--- a/arch/arm/mach-pxa/lubbock.c
+++ b/arch/arm/mach-pxa/lubbock.c
@@ -170,8 +170,8 @@ static void __init lubbock_init_irq(void)
 		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
 	}
 
-	irq_set_chained_handler(IRQ_GPIO(0), lubbock_irq_handler);
-	irq_set_irq_type(IRQ_GPIO(0), IRQ_TYPE_EDGE_FALLING);
+	irq_set_chained_handler(PXA_GPIO_TO_IRQ(0), lubbock_irq_handler);
+	irq_set_irq_type(PXA_GPIO_TO_IRQ(0), IRQ_TYPE_EDGE_FALLING);
 }
 
 #ifdef CONFIG_PM
diff --git a/arch/arm/mach-pxa/magician.c b/arch/arm/mach-pxa/magician.c
index 4e6774fff422..3d6baf91396c 100644
--- a/arch/arm/mach-pxa/magician.c
+++ b/arch/arm/mach-pxa/magician.c
@@ -184,8 +184,8 @@ static struct resource egpio_resources[] = {
 		.flags = IORESOURCE_MEM,
 	},
 	[1] = {
-		.start = gpio_to_irq(GPIO13_MAGICIAN_CPLD_IRQ),
-		.end   = gpio_to_irq(GPIO13_MAGICIAN_CPLD_IRQ),
+		.start = PXA_GPIO_TO_IRQ(GPIO13_MAGICIAN_CPLD_IRQ),
+		.end   = PXA_GPIO_TO_IRQ(GPIO13_MAGICIAN_CPLD_IRQ),
 		.flags = IORESOURCE_IRQ,
 	},
 };
@@ -468,8 +468,8 @@ static struct resource pasic3_resources[] = {
 	},
 	/* No IRQ handler in the PASIC3, DS1WM needs an external IRQ */
 	[1] = {
-		.start  = gpio_to_irq(GPIO107_MAGICIAN_DS1WM_IRQ),
-		.end    = gpio_to_irq(GPIO107_MAGICIAN_DS1WM_IRQ),
+		.start  = PXA_GPIO_TO_IRQ(GPIO107_MAGICIAN_DS1WM_IRQ),
+		.end    = PXA_GPIO_TO_IRQ(GPIO107_MAGICIAN_DS1WM_IRQ),
 		.flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	}
 };
diff --git a/arch/arm/mach-pxa/mainstone.c b/arch/arm/mach-pxa/mainstone.c
index ca14555d5e15..1aebaf719462 100644
--- a/arch/arm/mach-pxa/mainstone.c
+++ b/arch/arm/mach-pxa/mainstone.c
@@ -178,8 +178,8 @@ static void __init mainstone_init_irq(void)
 	MST_INTMSKENA = 0;
 	MST_INTSETCLR = 0;
 
-	irq_set_chained_handler(IRQ_GPIO(0), mainstone_irq_handler);
-	irq_set_irq_type(IRQ_GPIO(0), IRQ_TYPE_EDGE_FALLING);
+	irq_set_chained_handler(PXA_GPIO_TO_IRQ(0), mainstone_irq_handler);
+	irq_set_irq_type(PXA_GPIO_TO_IRQ(0), IRQ_TYPE_EDGE_FALLING);
 }
 
 #ifdef CONFIG_PM
diff --git a/arch/arm/mach-pxa/mfp-pxa2xx.c b/arch/arm/mach-pxa/mfp-pxa2xx.c
index 43a5f6861ca3..f14775536b83 100644
--- a/arch/arm/mach-pxa/mfp-pxa2xx.c
+++ b/arch/arm/mach-pxa/mfp-pxa2xx.c
@@ -13,6 +13,7 @@
  *  published by the Free Software Foundation.
  */
 #include <linux/gpio.h>
+#include <linux/gpio-pxa.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
@@ -20,7 +21,6 @@
 
 #include <mach/pxa2xx-regs.h>
 #include <mach/mfp-pxa2xx.h>
-#include <mach/gpio-pxa.h>
 
 #include "generic.h"
 
@@ -29,6 +29,10 @@
 #define GAFR_L(x)	__GAFR(0, x)
 #define GAFR_U(x)	__GAFR(1, x)
 
+#define BANK_OFF(n)	(((n) < 3) ? (n) << 2 : 0x100 + (((n) - 3) << 2))
+#define GPLR(x)		__REG2(0x40E00000, BANK_OFF((x) >> 5))
+#define GPDR(x)		__REG2(0x40E00000, BANK_OFF((x) >> 5) + 0x0c)
+
 #define PWER_WE35	(1 << 24)
 
 struct gpio_desc {
diff --git a/arch/arm/mach-pxa/mioa701.c b/arch/arm/mach-pxa/mioa701.c
index 924a3b5f8da6..e80a3db735c2 100644
--- a/arch/arm/mach-pxa/mioa701.c
+++ b/arch/arm/mach-pxa/mioa701.c
@@ -53,6 +53,7 @@
 #include <mach/pxa27x-udc.h>
 #include <mach/camera.h>
 #include <mach/audio.h>
+#include <mach/smemc.h>
 #include <media/soc_camera.h>
 
 #include <mach/mioa701.h>
@@ -390,24 +391,19 @@ static struct pxamci_platform_data mioa701_mci_info = {
 };
 
 /* FlashRAM */
-static struct resource strataflash_resource = {
+static struct resource docg3_resource = {
 	.start = PXA_CS0_PHYS,
-	.end   = PXA_CS0_PHYS + SZ_64M - 1,
+	.end   = PXA_CS0_PHYS + SZ_8K - 1,
 	.flags = IORESOURCE_MEM,
 };
 
-static struct physmap_flash_data strataflash_data = {
-	.width = 2,
-	/* .set_vpp = mioa701_set_vpp, */
-};
-
-static struct platform_device strataflash = {
-	.name	       = "physmap-flash",
+static struct platform_device docg3 = {
+	.name	       = "docg3",
 	.id	       = -1,
-	.resource      = &strataflash_resource,
+	.resource      = &docg3_resource,
 	.num_resources = 1,
 	.dev = {
-		.platform_data = &strataflash_data,
+		.platform_data = NULL,
 	},
 };
 
@@ -541,15 +537,15 @@ static struct pda_power_pdata power_pdata = {
 static struct resource power_resources[] = {
 	[0] = {
 		.name	= "ac",
-		.start	= gpio_to_irq(GPIO96_AC_DETECT),
-		.end	= gpio_to_irq(GPIO96_AC_DETECT),
+		.start	= PXA_GPIO_TO_IRQ(GPIO96_AC_DETECT),
+		.end	= PXA_GPIO_TO_IRQ(GPIO96_AC_DETECT),
 		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE |
 		IORESOURCE_IRQ_LOWEDGE,
 	},
 	[1] = {
 		.name	= "usb",
-		.start	= gpio_to_irq(GPIO13_nUSB_DETECT),
-		.end	= gpio_to_irq(GPIO13_nUSB_DETECT),
+		.start	= PXA_GPIO_TO_IRQ(GPIO13_nUSB_DETECT),
+		.end	= PXA_GPIO_TO_IRQ(GPIO13_nUSB_DETECT),
 		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE |
 		IORESOURCE_IRQ_LOWEDGE,
 	},
@@ -685,7 +681,7 @@ static struct platform_device *devices[] __initdata = {
 	&pxa2xx_pcm,
 	&mioa701_sound,
 	&power_dev,
-	&strataflash,
+	&docg3,
 	&gpio_vbus,
 	&mioa701_camera,
 	&mioa701_board,
@@ -720,6 +716,15 @@ static void __init mioa701_machine_init(void)
 	RTTR = 32768 - 1; /* Reset crazy WinCE value */
 	UP2OCR = UP2OCR_HXOE;
 
+	/*
+	 * Set up the flash memory : DiskOnChip G3 on first static memory bank
+	 */
+	__raw_writel(0x7ff02dd8, MSC0);
+	__raw_writel(0x0001c391, MCMEM0);
+	__raw_writel(0x0001c391, MCATT0);
+	__raw_writel(0x0001c391, MCIO0);
+
+
 	pxa2xx_mfp_config(ARRAY_AND_SIZE(mioa701_pin_config));
 	pxa_set_ffuart_info(NULL);
 	pxa_set_btuart_info(NULL);
diff --git a/arch/arm/mach-pxa/mxm8x10.c b/arch/arm/mach-pxa/mxm8x10.c
index 90928d6e1a5b..83570a79e7d2 100644
--- a/arch/arm/mach-pxa/mxm8x10.c
+++ b/arch/arm/mach-pxa/mxm8x10.c
@@ -417,8 +417,8 @@ static struct resource dm9k_resources[] = {
 	       .flags = IORESOURCE_MEM
 	},
 	[2] = {
-	       .start = gpio_to_irq(mfp_to_gpio(MFP_PIN_GPIO9)),
-	       .end = gpio_to_irq(mfp_to_gpio(MFP_PIN_GPIO9)),
+	       .start = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO9)),
+	       .end = PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO9)),
 	       .flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE
 	}
 };
diff --git a/arch/arm/mach-pxa/pcm990-baseboard.c b/arch/arm/mach-pxa/pcm990-baseboard.c
index 6d38c6548b3d..abab4e2b122c 100644
--- a/arch/arm/mach-pxa/pcm990-baseboard.c
+++ b/arch/arm/mach-pxa/pcm990-baseboard.c
@@ -378,7 +378,7 @@ struct pxacamera_platform_data pcm990_pxacamera_platform_data = {
 #include <linux/i2c/pca953x.h>
 
 static struct pca953x_platform_data pca9536_data = {
-	.gpio_base	= NR_BUILTIN_GPIO,
+	.gpio_base	= PXA_NR_BUILTIN_GPIO,
 };
 
 static int gpio_bus_switch = -EINVAL;
@@ -406,9 +406,9 @@ static unsigned long pcm990_camera_query_bus_param(struct soc_camera_link *link)
 	int ret;
 
 	if (gpio_bus_switch < 0) {
-		ret = gpio_request(NR_BUILTIN_GPIO, "camera");
+		ret = gpio_request(PXA_NR_BUILTIN_GPIO, "camera");
 		if (!ret) {
-			gpio_bus_switch = NR_BUILTIN_GPIO;
+			gpio_bus_switch = PXA_NR_BUILTIN_GPIO;
 			gpio_direction_output(gpio_bus_switch, 0);
 		}
 	}
diff --git a/arch/arm/mach-pxa/poodle.c b/arch/arm/mach-pxa/poodle.c
index b260ce872d2d..69036e42ca31 100644
--- a/arch/arm/mach-pxa/poodle.c
+++ b/arch/arm/mach-pxa/poodle.c
@@ -166,8 +166,8 @@ static struct resource locomo_resources[] = {
 		.flags		= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start		= IRQ_GPIO(10),
-		.end		= IRQ_GPIO(10),
+		.start		= PXA_GPIO_TO_IRQ(10),
+		.end		= PXA_GPIO_TO_IRQ(10),
 		.flags		= IORESOURCE_IRQ,
 	},
 };
@@ -212,7 +212,7 @@ static struct spi_board_info poodle_spi_devices[] = {
 		.bus_num	= 1,
 		.platform_data	= &poodle_ads7846_info,
 		.controller_data= &poodle_ads7846_chip,
-		.irq		= gpio_to_irq(POODLE_GPIO_TP_INT),
+		.irq		= PXA_GPIO_TO_IRQ(POODLE_GPIO_TP_INT),
 	},
 };
 
diff --git a/arch/arm/mach-pxa/pxa25x.c b/arch/arm/mach-pxa/pxa25x.c
index f05f9486b0cb..adf058fa97ee 100644
--- a/arch/arm/mach-pxa/pxa25x.c
+++ b/arch/arm/mach-pxa/pxa25x.c
@@ -17,6 +17,7 @@
  * need be.
  */
 #include <linux/gpio.h>
+#include <linux/gpio-pxa.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
@@ -208,6 +209,8 @@ static struct clk_lookup pxa25x_clkregs[] = {
 	INIT_CLKREG(&clk_pxa25x_gpio11, NULL, "GPIO11_CLK"),
 	INIT_CLKREG(&clk_pxa25x_gpio12, NULL, "GPIO12_CLK"),
 	INIT_CLKREG(&clk_pxa25x_mem, "pxa2xx-pcmcia", NULL),
+	INIT_CLKREG(&clk_dummy, "pxa-gpio", NULL),
+	INIT_CLKREG(&clk_dummy, "sa1100-rtc", NULL),
 };
 
 static struct clk_lookup pxa25x_hwuart_clkreg =
@@ -287,7 +290,7 @@ static inline void pxa25x_init_pm(void) {}
 
 static int pxa25x_set_wake(struct irq_data *d, unsigned int on)
 {
-	int gpio = irq_to_gpio(d->irq);
+	int gpio = pxa_irq_to_gpio(d->irq);
 	uint32_t mask = 0;
 
 	if (gpio >= 0 && gpio < 85)
@@ -312,14 +315,12 @@ set_pwer:
 void __init pxa25x_init_irq(void)
 {
 	pxa_init_irq(32, pxa25x_set_wake);
-	pxa_init_gpio(IRQ_GPIO_2_x, 2, 84, pxa25x_set_wake);
 }
 
 #ifdef CONFIG_CPU_PXA26x
 void __init pxa26x_init_irq(void)
 {
 	pxa_init_irq(32, pxa25x_set_wake);
-	pxa_init_gpio(IRQ_GPIO_2_x, 2, 89, pxa25x_set_wake);
 }
 #endif
 
diff --git a/arch/arm/mach-pxa/pxa27x.c b/arch/arm/mach-pxa/pxa27x.c
index bc5a98ebaa72..180bd8675d4b 100644
--- a/arch/arm/mach-pxa/pxa27x.c
+++ b/arch/arm/mach-pxa/pxa27x.c
@@ -12,6 +12,7 @@
  * published by the Free Software Foundation.
  */
 #include <linux/gpio.h>
+#include <linux/gpio-pxa.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>
@@ -229,6 +230,8 @@ static struct clk_lookup pxa27x_clkregs[] = {
 	INIT_CLKREG(&clk_pxa27x_im, NULL, "IMCLK"),
 	INIT_CLKREG(&clk_pxa27x_memc, NULL, "MEMCLK"),
 	INIT_CLKREG(&clk_pxa27x_mem, "pxa2xx-pcmcia", NULL),
+	INIT_CLKREG(&clk_dummy, "pxa-gpio", NULL),
+	INIT_CLKREG(&clk_dummy, "sa1100-rtc", NULL),
 };
 
 #ifdef CONFIG_PM
@@ -355,7 +358,7 @@ static inline void pxa27x_init_pm(void) {}
  */
 static int pxa27x_set_wake(struct irq_data *d, unsigned int on)
 {
-	int gpio = irq_to_gpio(d->irq);
+	int gpio = pxa_irq_to_gpio(d->irq);
 	uint32_t mask;
 
 	if (gpio >= 0 && gpio < 128)
@@ -386,7 +389,6 @@ static int pxa27x_set_wake(struct irq_data *d, unsigned int on)
 void __init pxa27x_init_irq(void)
 {
 	pxa_init_irq(34, pxa27x_set_wake);
-	pxa_init_gpio(IRQ_GPIO_2_x, 2, 120, pxa27x_set_wake);
 }
 
 static struct map_desc pxa27x_io_desc[] __initdata = {
@@ -422,6 +424,7 @@ void __init pxa27x_set_i2c_power_info(struct i2c_pxa_platform_data *info)
 }
 
 static struct platform_device *devices[] __initdata = {
+	&pxa_device_gpio,
 	&pxa27x_device_udc,
 	&pxa_device_pmu,
 	&pxa_device_i2s,
diff --git a/arch/arm/mach-pxa/pxa300.c b/arch/arm/mach-pxa/pxa300.c
index 40bb16501d86..0388eda7878a 100644
--- a/arch/arm/mach-pxa/pxa300.c
+++ b/arch/arm/mach-pxa/pxa300.c
@@ -89,6 +89,7 @@ static DEFINE_PXA3_CKEN(gcu, PXA300_GCU, 0, 0);
 static struct clk_lookup common_clkregs[] = {
 	INIT_CLKREG(&clk_common_nand, "pxa3xx-nand", NULL),
 	INIT_CLKREG(&clk_gcu, "pxa3xx-gcu", NULL),
+	INIT_CLKREG(&clk_dummy, "sa1100-rtc", NULL),
 };
 
 static DEFINE_PXA3_CKEN(pxa310_mmc3, MMC3, 19500000, 0);
diff --git a/arch/arm/mach-pxa/pxa320.c b/arch/arm/mach-pxa/pxa320.c
index 8d614ecd8e99..d487e1ff4c9a 100644
--- a/arch/arm/mach-pxa/pxa320.c
+++ b/arch/arm/mach-pxa/pxa320.c
@@ -83,6 +83,7 @@ static DEFINE_PXA3_CKEN(gcu, PXA320_GCU, 0, 0);
 static struct clk_lookup pxa320_clkregs[] = {
 	INIT_CLKREG(&clk_pxa320_nand, "pxa3xx-nand", NULL),
 	INIT_CLKREG(&clk_gcu, "pxa3xx-gcu", NULL),
+	INIT_CLKREG(&clk_dummy, "sa1100-rtc", NULL),
 };
 
 static int __init pxa320_init(void)
diff --git a/arch/arm/mach-pxa/pxa3xx.c b/arch/arm/mach-pxa/pxa3xx.c
index 0737c59b88ae..f107c71c7589 100644
--- a/arch/arm/mach-pxa/pxa3xx.c
+++ b/arch/arm/mach-pxa/pxa3xx.c
@@ -25,7 +25,6 @@
 #include <asm/mach/map.h>
 #include <asm/suspend.h>
 #include <mach/hardware.h>
-#include <mach/gpio-pxa.h>
 #include <mach/pxa3xx-regs.h>
 #include <mach/reset.h>
 #include <mach/ohci.h>
@@ -56,6 +55,7 @@ static DEFINE_PXA3_CKEN(pxa3xx_pwm0, PWM0, 13000000, 0);
 static DEFINE_PXA3_CKEN(pxa3xx_pwm1, PWM1, 13000000, 0);
 static DEFINE_PXA3_CKEN(pxa3xx_mmc1, MMC1, 19500000, 0);
 static DEFINE_PXA3_CKEN(pxa3xx_mmc2, MMC2, 19500000, 0);
+static DEFINE_PXA3_CKEN(pxa3xx_gpio, GPIO, 13000000, 0);
 
 static DEFINE_CK(pxa3xx_lcd, LCD, &clk_pxa3xx_hsio_ops);
 static DEFINE_CK(pxa3xx_smemc, SMC, &clk_pxa3xx_smemc_ops);
@@ -67,6 +67,7 @@ static struct clk_lookup pxa3xx_clkregs[] = {
 	INIT_CLKREG(&clk_pxa3xx_pout, NULL, "CLK_POUT"),
 	/* Power I2C clock is always on */
 	INIT_CLKREG(&clk_dummy, "pxa3xx-pwri2c.1", NULL),
+	INIT_CLKREG(&clk_dummy, "sa1100-rtc", NULL),
 	INIT_CLKREG(&clk_pxa3xx_lcd, "pxa2xx-fb", NULL),
 	INIT_CLKREG(&clk_pxa3xx_camera, NULL, "CAMCLK"),
 	INIT_CLKREG(&clk_pxa3xx_ac97, NULL, "AC97CLK"),
@@ -88,6 +89,7 @@ static struct clk_lookup pxa3xx_clkregs[] = {
 	INIT_CLKREG(&clk_pxa3xx_mmc1, "pxa2xx-mci.0", NULL),
 	INIT_CLKREG(&clk_pxa3xx_mmc2, "pxa2xx-mci.1", NULL),
 	INIT_CLKREG(&clk_pxa3xx_smemc, "pxa2xx-pcmcia", NULL),
+	INIT_CLKREG(&clk_pxa3xx_gpio, "pxa-gpio", NULL),
 };
 
 #ifdef CONFIG_PM
@@ -365,7 +367,8 @@ static struct irq_chip pxa_ext_wakeup_chip = {
 	.irq_set_type	= pxa_set_ext_wakeup_type,
 };
 
-static void __init pxa_init_ext_wakeup_irq(set_wake_t fn)
+static void __init pxa_init_ext_wakeup_irq(int (*fn)(struct irq_data *,
+					   unsigned int))
 {
 	int irq;
 
@@ -388,7 +391,6 @@ void __init pxa3xx_init_irq(void)
 
 	pxa_init_irq(56, pxa3xx_set_wake);
 	pxa_init_ext_wakeup_irq(pxa3xx_set_wake);
-	pxa_init_gpio(IRQ_GPIO_2_x, 2, 127, NULL);
 }
 
 static struct map_desc pxa3xx_io_desc[] __initdata = {
@@ -417,6 +419,7 @@ void __init pxa3xx_set_i2c_power_info(struct i2c_pxa_platform_data *info)
 }
 
 static struct platform_device *devices[] __initdata = {
+	&pxa_device_gpio,
 	&pxa27x_device_udc,
 	&pxa_device_pmu,
 	&pxa_device_i2s,
diff --git a/arch/arm/mach-pxa/pxa95x.c b/arch/arm/mach-pxa/pxa95x.c
index 51371b39d2a3..fccc644702e6 100644
--- a/arch/arm/mach-pxa/pxa95x.c
+++ b/arch/arm/mach-pxa/pxa95x.c
@@ -20,7 +20,6 @@
 #include <linux/syscore_ops.h>
 
 #include <mach/hardware.h>
-#include <mach/gpio-pxa.h>
 #include <mach/pxa3xx-regs.h>
 #include <mach/pxa930.h>
 #include <mach/reset.h>
@@ -212,11 +211,13 @@ static DEFINE_PXA3_CKEN(pxa95x_ssp3, SSP3, 13000000, 0);
 static DEFINE_PXA3_CKEN(pxa95x_ssp4, SSP4, 13000000, 0);
 static DEFINE_PXA3_CKEN(pxa95x_pwm0, PWM0, 13000000, 0);
 static DEFINE_PXA3_CKEN(pxa95x_pwm1, PWM1, 13000000, 0);
+static DEFINE_PXA3_CKEN(pxa95x_gpio, GPIO, 13000000, 0);
 
 static struct clk_lookup pxa95x_clkregs[] = {
 	INIT_CLKREG(&clk_pxa95x_pout, NULL, "CLK_POUT"),
 	/* Power I2C clock is always on */
 	INIT_CLKREG(&clk_dummy, "pxa3xx-pwri2c.1", NULL),
+	INIT_CLKREG(&clk_dummy, "sa1100-rtc", NULL),
 	INIT_CLKREG(&clk_pxa95x_lcd, "pxa2xx-fb", NULL),
 	INIT_CLKREG(&clk_pxa95x_ffuart, "pxa2xx-uart.0", NULL),
 	INIT_CLKREG(&clk_pxa95x_btuart, "pxa2xx-uart.1", NULL),
@@ -230,12 +231,12 @@ static struct clk_lookup pxa95x_clkregs[] = {
 	INIT_CLKREG(&clk_pxa95x_ssp4, "pxa27x-ssp.3", NULL),
 	INIT_CLKREG(&clk_pxa95x_pwm0, "pxa27x-pwm.0", NULL),
 	INIT_CLKREG(&clk_pxa95x_pwm1, "pxa27x-pwm.1", NULL),
+	INIT_CLKREG(&clk_pxa95x_gpio, "pxa-gpio", NULL),
 };
 
 void __init pxa95x_init_irq(void)
 {
 	pxa_init_irq(96, NULL);
-	pxa_init_gpio(IRQ_GPIO_2_x, 2, 127, NULL);
 }
 
 /*
@@ -248,6 +249,7 @@ void __init pxa95x_set_i2c_power_info(struct i2c_pxa_platform_data *info)
 }
 
 static struct platform_device *devices[] __initdata = {
+	&pxa_device_gpio,
 	&sa1100_device_rtc,
 	&pxa_device_rtc,
 	&pxa27x_device_ssp1,
diff --git a/arch/arm/mach-pxa/raumfeld.c b/arch/arm/mach-pxa/raumfeld.c
index 4962b1676629..22818c7694a8 100644
--- a/arch/arm/mach-pxa/raumfeld.c
+++ b/arch/arm/mach-pxa/raumfeld.c
@@ -292,8 +292,8 @@ static struct resource smc91x_resources[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	{
-		.start	= gpio_to_irq(GPIO_ETH_IRQ),
-		.end	= gpio_to_irq(GPIO_ETH_IRQ),
+		.start	= PXA_GPIO_TO_IRQ(GPIO_ETH_IRQ),
+		.end	= PXA_GPIO_TO_IRQ(GPIO_ETH_IRQ),
 		.flags	= IORESOURCE_IRQ | IRQF_TRIGGER_FALLING,
 	}
 };
@@ -672,7 +672,7 @@ static struct lis3lv02d_platform_data lis3_pdata = {
 	.chip_select	= 1,			\
 	.controller_data = (void *) GPIO_ACCEL_CS,	\
 	.platform_data	= &lis3_pdata,		\
-	.irq		= gpio_to_irq(GPIO_ACCEL_IRQ),	\
+	.irq		= PXA_GPIO_TO_IRQ(GPIO_ACCEL_IRQ),	\
 }
 
 #define SPI_DAC7512	\
@@ -956,7 +956,7 @@ static struct eeti_ts_platform_data eeti_ts_pdata = {
 static struct i2c_board_info raumfeld_controller_i2c_board_info __initdata = {
 	.type	= "eeti_ts",
 	.addr	= 0x0a,
-	.irq	= gpio_to_irq(GPIO_TOUCH_IRQ),
+	.irq	= PXA_GPIO_TO_IRQ(GPIO_TOUCH_IRQ),
 	.platform_data = &eeti_ts_pdata,
 };
 
diff --git a/arch/arm/mach-pxa/saar.c b/arch/arm/mach-pxa/saar.c
index 878707056e65..0fe354efb931 100644
--- a/arch/arm/mach-pxa/saar.c
+++ b/arch/arm/mach-pxa/saar.c
@@ -96,8 +96,8 @@ static struct resource smc91x_resources[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= gpio_to_irq(mfp_to_gpio(MFP_PIN_GPIO97)),
-		.end	= gpio_to_irq(mfp_to_gpio(MFP_PIN_GPIO97)),
+		.start	= PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO97)),
+		.end	= PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO97)),
 		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	}
 };
@@ -502,7 +502,7 @@ static struct i2c_board_info saar_i2c_info[] = {
 		.type		= "da9034",
 		.addr		= 0x34,
 		.platform_data	= &saar_da9034_info,
-		.irq		= gpio_to_irq(mfp_to_gpio(MFP_PIN_GPIO83)),
+		.irq		= PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO83)),
 	},
 };
 
diff --git a/arch/arm/mach-pxa/saarb.c b/arch/arm/mach-pxa/saarb.c
index b6dbaca460c7..febc809ed5a6 100644
--- a/arch/arm/mach-pxa/saarb.c
+++ b/arch/arm/mach-pxa/saarb.c
@@ -92,7 +92,7 @@ static struct i2c_board_info saarb_i2c_info[] = {
 		.type		= "88PM860x",
 		.addr		= 0x34,
 		.platform_data	= &saarb_pm8607_info,
-		.irq		= gpio_to_irq(mfp_to_gpio(MFP_PIN_GPIO83)),
+		.irq		= PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO83)),
 	},
 };
 
diff --git a/arch/arm/mach-pxa/sharpsl_pm.c b/arch/arm/mach-pxa/sharpsl_pm.c
index 785880f67b60..8d5168d253a9 100644
--- a/arch/arm/mach-pxa/sharpsl_pm.c
+++ b/arch/arm/mach-pxa/sharpsl_pm.c
@@ -907,24 +907,24 @@ static int __devinit sharpsl_pm_probe(struct platform_device *pdev)
 	gpio_direction_input(sharpsl_pm.machinfo->gpio_batlock);
 
 	/* Register interrupt handlers */
-	if (request_irq(IRQ_GPIO(sharpsl_pm.machinfo->gpio_acin), sharpsl_ac_isr, IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, "AC Input Detect", sharpsl_ac_isr)) {
-		dev_err(sharpsl_pm.dev, "Could not get irq %d.\n", IRQ_GPIO(sharpsl_pm.machinfo->gpio_acin));
+	if (request_irq(PXA_GPIO_TO_IRQ(sharpsl_pm.machinfo->gpio_acin), sharpsl_ac_isr, IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING, "AC Input Detect", sharpsl_ac_isr)) {
+		dev_err(sharpsl_pm.dev, "Could not get irq %d.\n", PXA_GPIO_TO_IRQ(sharpsl_pm.machinfo->gpio_acin));
 	}
 
-	if (request_irq(IRQ_GPIO(sharpsl_pm.machinfo->gpio_batlock), sharpsl_fatal_isr, IRQF_DISABLED | IRQF_TRIGGER_FALLING, "Battery Cover", sharpsl_fatal_isr)) {
-		dev_err(sharpsl_pm.dev, "Could not get irq %d.\n", IRQ_GPIO(sharpsl_pm.machinfo->gpio_batlock));
+	if (request_irq(PXA_GPIO_TO_IRQ(sharpsl_pm.machinfo->gpio_batlock), sharpsl_fatal_isr, IRQF_DISABLED | IRQF_TRIGGER_FALLING, "Battery Cover", sharpsl_fatal_isr)) {
+		dev_err(sharpsl_pm.dev, "Could not get irq %d.\n", PXA_GPIO_TO_IRQ(sharpsl_pm.machinfo->gpio_batlock));
 	}
 
 	if (sharpsl_pm.machinfo->gpio_fatal) {
-		if (request_irq(IRQ_GPIO(sharpsl_pm.machinfo->gpio_fatal), sharpsl_fatal_isr, IRQF_DISABLED | IRQF_TRIGGER_FALLING, "Fatal Battery", sharpsl_fatal_isr)) {
-			dev_err(sharpsl_pm.dev, "Could not get irq %d.\n", IRQ_GPIO(sharpsl_pm.machinfo->gpio_fatal));
+		if (request_irq(PXA_GPIO_TO_IRQ(sharpsl_pm.machinfo->gpio_fatal), sharpsl_fatal_isr, IRQF_DISABLED | IRQF_TRIGGER_FALLING, "Fatal Battery", sharpsl_fatal_isr)) {
+			dev_err(sharpsl_pm.dev, "Could not get irq %d.\n", PXA_GPIO_TO_IRQ(sharpsl_pm.machinfo->gpio_fatal));
 		}
 	}
 
 	if (sharpsl_pm.machinfo->batfull_irq) {
 		/* Register interrupt handler. */
-		if (request_irq(IRQ_GPIO(sharpsl_pm.machinfo->gpio_batfull), sharpsl_chrg_full_isr, IRQF_DISABLED | IRQF_TRIGGER_RISING, "CO", sharpsl_chrg_full_isr)) {
-			dev_err(sharpsl_pm.dev, "Could not get irq %d.\n", IRQ_GPIO(sharpsl_pm.machinfo->gpio_batfull));
+		if (request_irq(PXA_GPIO_TO_IRQ(sharpsl_pm.machinfo->gpio_batfull), sharpsl_chrg_full_isr, IRQF_DISABLED | IRQF_TRIGGER_RISING, "CO", sharpsl_chrg_full_isr)) {
+			dev_err(sharpsl_pm.dev, "Could not get irq %d.\n", PXA_GPIO_TO_IRQ(sharpsl_pm.machinfo->gpio_batfull));
 		}
 	}
 
@@ -953,14 +953,14 @@ static int sharpsl_pm_remove(struct platform_device *pdev)
 
 	led_trigger_unregister_simple(sharpsl_charge_led_trigger);
 
-	free_irq(IRQ_GPIO(sharpsl_pm.machinfo->gpio_acin), sharpsl_ac_isr);
-	free_irq(IRQ_GPIO(sharpsl_pm.machinfo->gpio_batlock), sharpsl_fatal_isr);
+	free_irq(PXA_GPIO_TO_IRQ(sharpsl_pm.machinfo->gpio_acin), sharpsl_ac_isr);
+	free_irq(PXA_GPIO_TO_IRQ(sharpsl_pm.machinfo->gpio_batlock), sharpsl_fatal_isr);
 
 	if (sharpsl_pm.machinfo->gpio_fatal)
-		free_irq(IRQ_GPIO(sharpsl_pm.machinfo->gpio_fatal), sharpsl_fatal_isr);
+		free_irq(PXA_GPIO_TO_IRQ(sharpsl_pm.machinfo->gpio_fatal), sharpsl_fatal_isr);
 
 	if (sharpsl_pm.machinfo->batfull_irq)
-		free_irq(IRQ_GPIO(sharpsl_pm.machinfo->gpio_batfull), sharpsl_chrg_full_isr);
+		free_irq(PXA_GPIO_TO_IRQ(sharpsl_pm.machinfo->gpio_batfull), sharpsl_chrg_full_isr);
 
 	gpio_free(sharpsl_pm.machinfo->gpio_batlock);
 	gpio_free(sharpsl_pm.machinfo->gpio_batfull);
diff --git a/arch/arm/mach-pxa/spitz.c b/arch/arm/mach-pxa/spitz.c
index a7f81a3fd132..abf355d0c92f 100644
--- a/arch/arm/mach-pxa/spitz.c
+++ b/arch/arm/mach-pxa/spitz.c
@@ -552,7 +552,7 @@ static struct spi_board_info spitz_spi_devices[] = {
 		.chip_select		= 0,
 		.platform_data		= &spitz_ads7846_info,
 		.controller_data	= &spitz_ads7846_chip,
-		.irq			= gpio_to_irq(SPITZ_GPIO_TP_INT),
+		.irq			= PXA_GPIO_TO_IRQ(SPITZ_GPIO_TP_INT),
 	}, {
 		.modalias		= "corgi-lcd",
 		.max_speed_hz		= 50000,
diff --git a/arch/arm/mach-pxa/spitz_pm.c b/arch/arm/mach-pxa/spitz_pm.c
index 094279aefe9c..34cbdac51525 100644
--- a/arch/arm/mach-pxa/spitz_pm.c
+++ b/arch/arm/mach-pxa/spitz_pm.c
@@ -15,6 +15,7 @@
 #include <linux/kernel.h>
 #include <linux/delay.h>
 #include <linux/gpio.h>
+#include <linux/gpio-pxa.h>
 #include <linux/interrupt.h>
 #include <linux/platform_device.h>
 #include <linux/apm-emulation.h>
@@ -41,6 +42,7 @@ static int spitz_last_ac_status;
 static struct gpio spitz_charger_gpios[] = {
 	{ SPITZ_GPIO_KEY_INT,	GPIOF_IN, "Keyboard Interrupt" },
 	{ SPITZ_GPIO_SYNC,	GPIOF_IN, "Sync" },
+	{ SPITZ_GPIO_AC_IN,     GPIOF_IN, "Charger Detection" },
 	{ SPITZ_GPIO_ADC_TEMP_ON, GPIOF_OUT_INIT_LOW, "ADC Temp On" },
 	{ SPITZ_GPIO_JK_B,	  GPIOF_OUT_INIT_LOW, "JK B" },
 	{ SPITZ_GPIO_CHRG_ON,	  GPIOF_OUT_INIT_LOW, "Charger On" },
@@ -169,14 +171,19 @@ static int spitz_should_wakeup(unsigned int resume_on_alarm)
 
 static unsigned long spitz_charger_wakeup(void)
 {
-	return (~GPLR0 & GPIO_bit(SPITZ_GPIO_KEY_INT)) | (GPLR0 & GPIO_bit(SPITZ_GPIO_SYNC));
+	unsigned long ret;
+	ret = (!gpio_get_value(SPITZ_GPIO_KEY_INT)
+		<< GPIO_bit(SPITZ_GPIO_KEY_INT))
+		| (!gpio_get_value(SPITZ_GPIO_SYNC)
+		<< GPIO_bit(SPITZ_GPIO_SYNC));
+	return ret;
 }
 
 unsigned long spitzpm_read_devdata(int type)
 {
 	switch (type) {
 	case SHARPSL_STATUS_ACIN:
-		return (((~GPLR(SPITZ_GPIO_AC_IN)) & GPIO_bit(SPITZ_GPIO_AC_IN)) != 0);
+		return !gpio_get_value(SPITZ_GPIO_AC_IN);
 	case SHARPSL_STATUS_LOCK:
 		return gpio_get_value(sharpsl_pm.machinfo->gpio_batlock);
 	case SHARPSL_STATUS_CHRGFULL:
diff --git a/arch/arm/mach-pxa/stargate2.c b/arch/arm/mach-pxa/stargate2.c
index 80d7f23ad0fd..d8a2467de92e 100644
--- a/arch/arm/mach-pxa/stargate2.c
+++ b/arch/arm/mach-pxa/stargate2.c
@@ -376,7 +376,7 @@ static struct spi_board_info spi_board_info[] __initdata = {
 		.bus_num = 1,
 		.chip_select = 0,
 		.controller_data = &staccel_chip_info,
-		.irq = IRQ_GPIO(96),
+		.irq = PXA_GPIO_TO_IRQ(96),
 	}, {
 		.modalias = "cc2420",
 		.max_speed_hz = 6500000,
@@ -546,7 +546,7 @@ static struct i2c_board_info __initdata imote2_pwr_i2c_board_info[] = {
 		.type = "da9030",
 		.addr = 0x49,
 		.platform_data = &imote2_da9030_pdata,
-		.irq = gpio_to_irq(1),
+		.irq = PXA_GPIO_TO_IRQ(1),
 	},
 };
 
@@ -560,18 +560,18 @@ static struct i2c_board_info __initdata imote2_i2c_board_info[] = {
 		/* Through a nand gate - Also beware, on V2 sensor board the
 		 * pull up resistors are missing.
 		 */
-		.irq = IRQ_GPIO(99),
+		.irq = PXA_GPIO_TO_IRQ(99),
 	}, { /* ITS400 Sensor board only */
 		.type = "tsl2561",
 		.addr = 0x49,
 		/* Through a nand gate - Also beware, on V2 sensor board the
 		 * pull up resistors are missing.
 		 */
-		.irq = IRQ_GPIO(99),
+		.irq = PXA_GPIO_TO_IRQ(99),
 	}, { /* ITS400 Sensor board only */
 		.type = "tmp175",
 		.addr = 0x4A,
-		.irq = IRQ_GPIO(96),
+		.irq = PXA_GPIO_TO_IRQ(96),
 	}, { /* IMB400 Multimedia board */
 		.type = "wm8940",
 		.addr = 0x1A,
@@ -661,8 +661,8 @@ static struct resource smc91x_resources[] = {
 		.flags = IORESOURCE_MEM,
 	},
 	[1] = {
-		.start = IRQ_GPIO(40),
-		.end = IRQ_GPIO(40),
+		.start = PXA_GPIO_TO_IRQ(40),
+		.end = PXA_GPIO_TO_IRQ(40),
 		.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	}
 };
@@ -707,7 +707,7 @@ static int stargate2_mci_init(struct device *dev,
 	}
 	gpio_direction_input(SG2_GPIO_nSD_DETECT);
 
-	err = request_irq(IRQ_GPIO(SG2_GPIO_nSD_DETECT),
+	err = request_irq(PXA_GPIO_TO_IRQ(SG2_GPIO_nSD_DETECT),
 			  stargate2_detect_int,
 			  IRQ_TYPE_EDGE_BOTH,
 			  "MMC card detect",
@@ -738,7 +738,7 @@ static void stargate2_mci_setpower(struct device *dev, unsigned int vdd)
 
 static void stargate2_mci_exit(struct device *dev, void *data)
 {
-	free_irq(IRQ_GPIO(SG2_GPIO_nSD_DETECT), data);
+	free_irq(PXA_GPIO_TO_IRQ(SG2_GPIO_nSD_DETECT), data);
 	gpio_free(SG2_SD_POWER_ENABLE);
 	gpio_free(SG2_GPIO_nSD_DETECT);
 }
@@ -913,7 +913,7 @@ static struct i2c_board_info __initdata stargate2_pwr_i2c_board_info[] = {
 		.type = "da9030",
 		.addr = 0x49,
 		.platform_data = &stargate2_da9030_pdata,
-		.irq = gpio_to_irq(1),
+		.irq = PXA_GPIO_TO_IRQ(1),
 	},
 };
 
@@ -938,18 +938,18 @@ static struct i2c_board_info __initdata stargate2_i2c_board_info[] = {
 		/* Through a nand gate - Also beware, on V2 sensor board the
 		 * pull up resistors are missing.
 		 */
-		.irq = IRQ_GPIO(99),
+		.irq = PXA_GPIO_TO_IRQ(99),
 	}, { /* ITS400 Sensor board only */
 		.type = "tsl2561",
 		.addr = 0x49,
 		/* Through a nand gate - Also beware, on V2 sensor board the
 		 * pull up resistors are missing.
 		 */
-		.irq = IRQ_GPIO(99),
+		.irq = PXA_GPIO_TO_IRQ(99),
 	}, { /* ITS400 Sensor board only */
 		.type = "tmp175",
 		.addr = 0x4A,
-		.irq = IRQ_GPIO(96),
+		.irq = PXA_GPIO_TO_IRQ(96),
 	},
 };
 
diff --git a/arch/arm/mach-pxa/tavorevb.c b/arch/arm/mach-pxa/tavorevb.c
index 4fa36a3e383c..9fb38e80e076 100644
--- a/arch/arm/mach-pxa/tavorevb.c
+++ b/arch/arm/mach-pxa/tavorevb.c
@@ -85,8 +85,8 @@ static struct resource smc91x_resources[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[1] = {
-		.start	= gpio_to_irq(mfp_to_gpio(MFP_PIN_GPIO47)),
-		.end	= gpio_to_irq(mfp_to_gpio(MFP_PIN_GPIO47)),
+		.start	= PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO47)),
+		.end	= PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO47)),
 		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	}
 };
diff --git a/arch/arm/mach-pxa/tavorevb3.c b/arch/arm/mach-pxa/tavorevb3.c
index 8a22879f0bb0..f7d9305cfd77 100644
--- a/arch/arm/mach-pxa/tavorevb3.c
+++ b/arch/arm/mach-pxa/tavorevb3.c
@@ -101,7 +101,7 @@ static struct i2c_board_info evb3_i2c_info[] = {
 		.type		= "88PM860x",
 		.addr		= 0x34,
 		.platform_data	= &evb3_pm8607_info,
-		.irq		= gpio_to_irq(mfp_to_gpio(MFP_PIN_GPIO83)),
+		.irq		= PXA_GPIO_TO_IRQ(mfp_to_gpio(MFP_PIN_GPIO83)),
 	},
 };
 
diff --git a/arch/arm/mach-pxa/tosa.c b/arch/arm/mach-pxa/tosa.c
index dfe40f8705aa..7ce5c436cc4e 100644
--- a/arch/arm/mach-pxa/tosa.c
+++ b/arch/arm/mach-pxa/tosa.c
@@ -404,8 +404,8 @@ static struct pda_power_pdata tosa_power_data = {
 static struct resource tosa_power_resource[] = {
 	{
 		.name		= "ac",
-		.start		= gpio_to_irq(TOSA_GPIO_AC_IN),
-		.end		= gpio_to_irq(TOSA_GPIO_AC_IN),
+		.start		= PXA_GPIO_TO_IRQ(TOSA_GPIO_AC_IN),
+		.end		= PXA_GPIO_TO_IRQ(TOSA_GPIO_AC_IN),
 		.flags		= IORESOURCE_IRQ |
 				  IORESOURCE_IRQ_HIGHEDGE |
 				  IORESOURCE_IRQ_LOWEDGE,
diff --git a/arch/arm/mach-pxa/viper.c b/arch/arm/mach-pxa/viper.c
index afe2b7495523..023d6ca789de 100644
--- a/arch/arm/mach-pxa/viper.c
+++ b/arch/arm/mach-pxa/viper.c
@@ -422,8 +422,8 @@ static struct resource smc91x_resources[] = {
 		.flags  = IORESOURCE_MEM,
 	},
 	[1] = {
-		.start  = gpio_to_irq(VIPER_ETH_GPIO),
-		.end    = gpio_to_irq(VIPER_ETH_GPIO),
+		.start  = PXA_GPIO_TO_IRQ(VIPER_ETH_GPIO),
+		.end    = PXA_GPIO_TO_IRQ(VIPER_ETH_GPIO),
 		.flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	},
 	[2] = {
@@ -546,7 +546,7 @@ static struct plat_serial8250_port serial_platform_data[] = {
 	/* External UARTs */
 	{
 		.mapbase	= VIPER_UARTA_PHYS,
-		.irq		= gpio_to_irq(VIPER_UARTA_GPIO),
+		.irq		= PXA_GPIO_TO_IRQ(VIPER_UARTA_GPIO),
 		.irqflags	= IRQF_TRIGGER_RISING,
 		.uartclk	= 1843200,
 		.regshift	= 1,
@@ -556,7 +556,7 @@ static struct plat_serial8250_port serial_platform_data[] = {
 	},
 	{
 		.mapbase	= VIPER_UARTB_PHYS,
-		.irq		= gpio_to_irq(VIPER_UARTB_GPIO),
+		.irq		= PXA_GPIO_TO_IRQ(VIPER_UARTB_GPIO),
 		.irqflags	= IRQF_TRIGGER_RISING,
 		.uartclk	= 1843200,
 		.regshift	= 1,
@@ -596,8 +596,8 @@ static struct resource isp116x_resources[] = {
 		.flags  = IORESOURCE_MEM,
 	},
 	[2] = {
-		.start  = gpio_to_irq(VIPER_USB_GPIO),
-		.end    = gpio_to_irq(VIPER_USB_GPIO),
+		.start  = PXA_GPIO_TO_IRQ(VIPER_USB_GPIO),
+		.end    = PXA_GPIO_TO_IRQ(VIPER_USB_GPIO),
 		.flags  = IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	},
 };
diff --git a/arch/arm/mach-pxa/vpac270.c b/arch/arm/mach-pxa/vpac270.c
index fed5fb088714..1f5cfa96f6d6 100644
--- a/arch/arm/mach-pxa/vpac270.c
+++ b/arch/arm/mach-pxa/vpac270.c
@@ -395,8 +395,8 @@ static struct resource vpac270_dm9000_resources[] = {
 		.flags	= IORESOURCE_MEM,
 	},
 	[2] = {
-		.start	= IRQ_GPIO(GPIO114_VPAC270_ETH_IRQ),
-		.end	= IRQ_GPIO(GPIO114_VPAC270_ETH_IRQ),
+		.start	= PXA_GPIO_TO_IRQ(GPIO114_VPAC270_ETH_IRQ),
+		.end	= PXA_GPIO_TO_IRQ(GPIO114_VPAC270_ETH_IRQ),
 		.flags	= IORESOURCE_IRQ | IORESOURCE_IRQ_HIGHEDGE,
 	},
 };
@@ -433,7 +433,7 @@ static pxa2xx_audio_ops_t vpac270_ac97_pdata = {
 };
 
 static struct ucb1400_pdata vpac270_ucb1400_pdata = {
-	.irq		= IRQ_GPIO(GPIO113_VPAC270_TS_IRQ),
+	.irq		= PXA_GPIO_TO_IRQ(GPIO113_VPAC270_TS_IRQ),
 };
 
 static struct platform_device vpac270_ucb1400_device = {
@@ -610,8 +610,8 @@ static struct resource vpac270_ide_resources[] = {
 	       .flags	= IORESOURCE_DMA
 	},
 	[3] = {	/* IDE IRQ pin */
-	       .start	= gpio_to_irq(GPIO36_VPAC270_IDE_IRQ),
-	       .end	= gpio_to_irq(GPIO36_VPAC270_IDE_IRQ),
+	       .start	= PXA_GPIO_TO_IRQ(GPIO36_VPAC270_IDE_IRQ),
+	       .end	= PXA_GPIO_TO_IRQ(GPIO36_VPAC270_IDE_IRQ),
 	       .flags	= IORESOURCE_IRQ
 	}
 };
diff --git a/arch/arm/mach-pxa/z2.c b/arch/arm/mach-pxa/z2.c
index d75f66ab8c34..b6476848b561 100644
--- a/arch/arm/mach-pxa/z2.c
+++ b/arch/arm/mach-pxa/z2.c
@@ -573,7 +573,7 @@ static struct spi_board_info spi_board_info[] __initdata = {
 	.modalias		= "libertas_spi",
 	.platform_data		= &z2_lbs_pdata,
 	.controller_data	= &z2_lbs_chip_info,
-	.irq			= gpio_to_irq(GPIO36_ZIPITZ2_WIFI_IRQ),
+	.irq			= PXA_GPIO_TO_IRQ(GPIO36_ZIPITZ2_WIFI_IRQ),
 	.max_speed_hz		= 13000000,
 	.bus_num		= 1,
 	.chip_select		= 0,
diff --git a/arch/arm/mach-pxa/zeus.c b/arch/arm/mach-pxa/zeus.c
index 9db35a7fcfc0..a4dd1c347050 100644
--- a/arch/arm/mach-pxa/zeus.c
+++ b/arch/arm/mach-pxa/zeus.c
@@ -233,7 +233,7 @@ static struct plat_serial8250_port serial_platform_data[] = {
 	/* FIXME: Shared IRQs on COM1-COM4 will not work properly on v1i1 hardware. */
 	{ /* COM1 */
 		.mapbase	= 0x10000000,
-		.irq		= gpio_to_irq(ZEUS_UARTA_GPIO),
+		.irq		= PXA_GPIO_TO_IRQ(ZEUS_UARTA_GPIO),
 		.irqflags	= IRQF_TRIGGER_RISING,
 		.uartclk	= 14745600,
 		.regshift	= 1,
@@ -242,7 +242,7 @@ static struct plat_serial8250_port serial_platform_data[] = {
 	},
 	{ /* COM2 */
 		.mapbase	= 0x10800000,
-		.irq		= gpio_to_irq(ZEUS_UARTB_GPIO),
+		.irq		= PXA_GPIO_TO_IRQ(ZEUS_UARTB_GPIO),
 		.irqflags	= IRQF_TRIGGER_RISING,
 		.uartclk	= 14745600,
 		.regshift	= 1,
@@ -251,7 +251,7 @@ static struct plat_serial8250_port serial_platform_data[] = {
 	},
 	{ /* COM3 */
 		.mapbase	= 0x11000000,
-		.irq		= gpio_to_irq(ZEUS_UARTC_GPIO),
+		.irq		= PXA_GPIO_TO_IRQ(ZEUS_UARTC_GPIO),
 		.irqflags	= IRQF_TRIGGER_RISING,
 		.uartclk	= 14745600,
 		.regshift	= 1,
@@ -260,7 +260,7 @@ static struct plat_serial8250_port serial_platform_data[] = {
 	},
 	{ /* COM4 */
 		.mapbase	= 0x11800000,
-		.irq		= gpio_to_irq(ZEUS_UARTD_GPIO),
+		.irq		= PXA_GPIO_TO_IRQ(ZEUS_UARTD_GPIO),
 		.irqflags	= IRQF_TRIGGER_RISING,
 		.uartclk	= 14745600,
 		.regshift	= 1,
@@ -321,8 +321,8 @@ static struct resource zeus_dm9k0_resource[] = {
 		.flags = IORESOURCE_MEM
 	},
 	[2] = {
-		.start = gpio_to_irq(ZEUS_ETH0_GPIO),
-		.end   = gpio_to_irq(ZEUS_ETH0_GPIO),
+		.start = PXA_GPIO_TO_IRQ(ZEUS_ETH0_GPIO),
+		.end   = PXA_GPIO_TO_IRQ(ZEUS_ETH0_GPIO),
 		.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
 	},
 };
@@ -339,8 +339,8 @@ static struct resource zeus_dm9k1_resource[] = {
 		.flags = IORESOURCE_MEM,
 	},
 	[2] = {
-		.start = gpio_to_irq(ZEUS_ETH1_GPIO),
-		.end   = gpio_to_irq(ZEUS_ETH1_GPIO),
+		.start = PXA_GPIO_TO_IRQ(ZEUS_ETH1_GPIO),
+		.end   = PXA_GPIO_TO_IRQ(ZEUS_ETH1_GPIO),
 		.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
 	},
 };
@@ -423,7 +423,7 @@ static struct spi_board_info zeus_spi_board_info[] = {
 	[0] = {
 		.modalias	= "mcp2515",
 		.platform_data	= &zeus_mcp2515_pdata,
-		.irq		= gpio_to_irq(ZEUS_CAN_GPIO),
+		.irq		= PXA_GPIO_TO_IRQ(ZEUS_CAN_GPIO),
 		.max_speed_hz	= 1*1000*1000,
 		.bus_num	= 3,
 		.mode		= SPI_MODE_0,
@@ -753,7 +753,7 @@ static struct i2c_board_info __initdata zeus_i2c_devices[] = {
 	{
 		I2C_BOARD_INFO("pca9535",	0x20),
 		.platform_data	= &zeus_pca953x_pdata[2],
-		.irq		= gpio_to_irq(ZEUS_EXTGPIO_GPIO),
+		.irq		= PXA_GPIO_TO_IRQ(ZEUS_EXTGPIO_GPIO),
 	},
 	{ I2C_BOARD_INFO("lm75a",	0x48) },
 	{ I2C_BOARD_INFO("24c01",	0x50) },
diff --git a/arch/arm/mach-pxa/zylonite.c b/arch/arm/mach-pxa/zylonite.c
index 7678b1bf7903..98eec80623e3 100644
--- a/arch/arm/mach-pxa/zylonite.c
+++ b/arch/arm/mach-pxa/zylonite.c
@@ -408,8 +408,8 @@ static void __init zylonite_init(void)
 	 * Note: We depend that the bootloader set
 	 * the correct value to MSC register for SMC91x.
 	 */
-	smc91x_resources[1].start = gpio_to_irq(gpio_eth_irq);
-	smc91x_resources[1].end   = gpio_to_irq(gpio_eth_irq);
+	smc91x_resources[1].start = PXA_GPIO_TO_IRQ(gpio_eth_irq);
+	smc91x_resources[1].end   = PXA_GPIO_TO_IRQ(gpio_eth_irq);
 	platform_device_register(&smc91x_device);
 
 	pxa_set_ac97_info(NULL);
diff --git a/arch/arm/mach-pxa/zylonite_pxa300.c b/arch/arm/mach-pxa/zylonite_pxa300.c
index 93c64d8d7de9..86e59c043de2 100644
--- a/arch/arm/mach-pxa/zylonite_pxa300.c
+++ b/arch/arm/mach-pxa/zylonite_pxa300.c
@@ -231,12 +231,12 @@ static struct i2c_board_info zylonite_i2c_board_info[] = {
 		.type		= "pca9539",
 		.addr		= 0x74,
 		.platform_data	= &gpio_exp[0],
-		.irq		= IRQ_GPIO(18),
+		.irq		= PXA_GPIO_TO_IRQ(18),
 	}, {
 		.type		= "pca9539",
 		.addr		= 0x75,
 		.platform_data	= &gpio_exp[1],
-		.irq		= IRQ_GPIO(19),
+		.irq		= PXA_GPIO_TO_IRQ(19),
 	},
 };
 
diff --git a/arch/arm/mach-s3c2410/mach-bast.c b/arch/arm/mach-s3c2410/mach-bast.c
index c6133c6ec18f..feeaf73933dc 100644
--- a/arch/arm/mach-s3c2410/mach-bast.c
+++ b/arch/arm/mach-s3c2410/mach-bast.c
@@ -165,22 +165,6 @@ static struct map_desc bast_iodesc[] __initdata = {
 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
 
-static struct s3c24xx_uart_clksrc bast_serial_clocks[] = {
-	[0] = {
-		.name		= "uclk",
-		.divisor	= 1,
-		.min_baud	= 0,
-		.max_baud	= 0,
-	},
-	[1] = {
-		.name		= "pclk",
-		.divisor	= 1,
-		.min_baud	= 0,
-		.max_baud	= 0,
-	}
-};
-
-
 static struct s3c2410_uartcfg bast_uartcfgs[] __initdata = {
 	[0] = {
 		.hwport	     = 0,
@@ -188,8 +172,6 @@ static struct s3c2410_uartcfg bast_uartcfgs[] __initdata = {
 		.ucon	     = UCON,
 		.ulcon	     = ULCON,
 		.ufcon	     = UFCON,
-		.clocks	     = bast_serial_clocks,
-		.clocks_size = ARRAY_SIZE(bast_serial_clocks),
 	},
 	[1] = {
 		.hwport	     = 1,
@@ -197,8 +179,6 @@ static struct s3c2410_uartcfg bast_uartcfgs[] __initdata = {
 		.ucon	     = UCON,
 		.ulcon	     = ULCON,
 		.ufcon	     = UFCON,
-		.clocks	     = bast_serial_clocks,
-		.clocks_size = ARRAY_SIZE(bast_serial_clocks),
 	},
 	/* port 2 is not actually used */
 	[2] = {
@@ -207,8 +187,6 @@ static struct s3c2410_uartcfg bast_uartcfgs[] __initdata = {
 		.ucon	     = UCON,
 		.ulcon	     = ULCON,
 		.ufcon	     = UFCON,
-		.clocks	     = bast_serial_clocks,
-		.clocks_size = ARRAY_SIZE(bast_serial_clocks),
 	}
 };
 
diff --git a/arch/arm/mach-s3c2410/mach-vr1000.c b/arch/arm/mach-s3c2410/mach-vr1000.c
index cc7032b5c65b..dbe668a803ef 100644
--- a/arch/arm/mach-s3c2410/mach-vr1000.c
+++ b/arch/arm/mach-s3c2410/mach-vr1000.c
@@ -110,23 +110,6 @@ static struct map_desc vr1000_iodesc[] __initdata = {
 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
 
-/* uart clock source(s) */
-
-static struct s3c24xx_uart_clksrc vr1000_serial_clocks[] = {
-	[0] = {
-		.name		= "uclk",
-		.divisor	= 1,
-		.min_baud	= 0,
-		.max_baud	= 0,
-	},
-	[1] = {
-		.name		= "pclk",
-		.divisor	= 1,
-		.min_baud	= 0,
-		.max_baud	= 0.
-	}
-};
-
 static struct s3c2410_uartcfg vr1000_uartcfgs[] __initdata = {
 	[0] = {
 		.hwport	     = 0,
@@ -134,8 +117,6 @@ static struct s3c2410_uartcfg vr1000_uartcfgs[] __initdata = {
 		.ucon	     = UCON,
 		.ulcon	     = ULCON,
 		.ufcon	     = UFCON,
-		.clocks	     = vr1000_serial_clocks,
-		.clocks_size = ARRAY_SIZE(vr1000_serial_clocks),
 	},
 	[1] = {
 		.hwport	     = 1,
@@ -143,8 +124,6 @@ static struct s3c2410_uartcfg vr1000_uartcfgs[] __initdata = {
 		.ucon	     = UCON,
 		.ulcon	     = ULCON,
 		.ufcon	     = UFCON,
-		.clocks	     = vr1000_serial_clocks,
-		.clocks_size = ARRAY_SIZE(vr1000_serial_clocks),
 	},
 	/* port 2 is not actually used */
 	[2] = {
@@ -153,9 +132,6 @@ static struct s3c2410_uartcfg vr1000_uartcfgs[] __initdata = {
 		.ucon	     = UCON,
 		.ulcon	     = ULCON,
 		.ufcon	     = UFCON,
-		.clocks	     = vr1000_serial_clocks,
-		.clocks_size = ARRAY_SIZE(vr1000_serial_clocks),
-
 	}
 };
 
diff --git a/arch/arm/mach-s3c2410/s3c2410.c b/arch/arm/mach-s3c2410/s3c2410.c
index eea559ec7a58..061b6bb1a557 100644
--- a/arch/arm/mach-s3c2410/s3c2410.c
+++ b/arch/arm/mach-s3c2410/s3c2410.c
@@ -124,12 +124,18 @@ static struct clk s3c2410_armclk = {
 	.id	= -1,
 };
 
+static struct clk_lookup s3c2410_clk_lookup[] = {
+	CLKDEV_INIT(NULL, "clk_uart_baud0", &clk_p),
+	CLKDEV_INIT(NULL, "clk_uart_baud1", &s3c24xx_uclk),
+};
+
 void __init s3c2410_init_clocks(int xtal)
 {
 	s3c24xx_register_baseclocks(xtal);
 	s3c2410_setup_clocks();
 	s3c2410_baseclk_add();
 	s3c24xx_register_clock(&s3c2410_armclk);
+	clkdev_add_table(s3c2410_clk_lookup, ARRAY_SIZE(s3c2410_clk_lookup));
 }
 
 struct bus_type s3c2410_subsys = {
diff --git a/arch/arm/mach-s3c2412/clock.c b/arch/arm/mach-s3c2412/clock.c
index 516881640808..d10b695a9066 100644
--- a/arch/arm/mach-s3c2412/clock.c
+++ b/arch/arm/mach-s3c2412/clock.c
@@ -659,6 +659,12 @@ static struct clk *clks[] __initdata = {
 	&clk_armclk,
 };
 
+static struct clk_lookup s3c2412_clk_lookup[] = {
+	CLKDEV_INIT(NULL, "clk_uart_baud1", &s3c24xx_uclk),
+	CLKDEV_INIT(NULL, "clk_uart_baud2", &clk_p),
+	CLKDEV_INIT(NULL, "clk_uart_baud3", &clk_usysclk),
+};
+
 int __init s3c2412_baseclk_add(void)
 {
 	unsigned long clkcon  = __raw_readl(S3C2410_CLKCON);
@@ -751,6 +757,7 @@ int __init s3c2412_baseclk_add(void)
 		s3c2412_clkcon_enable(clkp, 0);
 	}
 
+	clkdev_add_table(s3c2412_clk_lookup, ARRAY_SIZE(s3c2412_clk_lookup));
 	s3c_pwmclk_init();
 	return 0;
 }
diff --git a/arch/arm/mach-s3c2416/Makefile b/arch/arm/mach-s3c2416/Makefile
index 7b805b279caf..ca0cd227f873 100644
--- a/arch/arm/mach-s3c2416/Makefile
+++ b/arch/arm/mach-s3c2416/Makefile
@@ -15,7 +15,6 @@ obj-$(CONFIG_S3C2416_PM)	+= pm.o
 #obj-$(CONFIG_S3C2416_DMA)	+= dma.o
 
 # Device setup
-obj-$(CONFIG_S3C2416_SETUP_SDHCI) += setup-sdhci.o
 obj-$(CONFIG_S3C2416_SETUP_SDHCI_GPIO) += setup-sdhci-gpio.o
 
 # Machine support
diff --git a/arch/arm/mach-s3c2416/clock.c b/arch/arm/mach-s3c2416/clock.c
index afbbe8bc21d1..59f54d1d7f8b 100644
--- a/arch/arm/mach-s3c2416/clock.c
+++ b/arch/arm/mach-s3c2416/clock.c
@@ -90,39 +90,38 @@ static struct clksrc_clk hsmmc_div[] = {
 	},
 };
 
-static struct clksrc_clk hsmmc_mux[] = {
-	[0] = {
-		.clk	= {
-			.name	= "hsmmc-if",
-			.devname	= "s3c-sdhci.0",
-			.ctrlbit = (1 << 6),
-			.enable = s3c2443_clkcon_enable_s,
-		},
-		.sources = &(struct clksrc_sources) {
-			.nr_sources = 2,
-			.sources = (struct clk *[]) {
-				[0] = &hsmmc_div[0].clk,
-				[1] = NULL, /* to fix */
-			},
-		},
-		.reg_src = { .reg = S3C2443_CLKSRC, .size = 1, .shift = 16 },
+static struct clksrc_clk hsmmc_mux0 = {
+	.clk	= {
+		.name		= "hsmmc-if",
+		.devname	= "s3c-sdhci.0",
+		.ctrlbit	= (1 << 6),
+		.enable		= s3c2443_clkcon_enable_s,
 	},
-	[1] = {
-		.clk	= {
-			.name	= "hsmmc-if",
-			.devname	= "s3c-sdhci.1",
-			.ctrlbit = (1 << 12),
-			.enable = s3c2443_clkcon_enable_s,
+	.sources	= &(struct clksrc_sources) {
+		.nr_sources	= 2,
+		.sources	= (struct clk * []) {
+			[0]	= &hsmmc_div[0].clk,
+			[1]	= NULL, /* to fix */
 		},
-		.sources = &(struct clksrc_sources) {
-			.nr_sources = 2,
-			.sources = (struct clk *[]) {
-				[0] = &hsmmc_div[1].clk,
-				[1] = NULL, /* to fix */
-			},
+	},
+	.reg_src = { .reg = S3C2443_CLKSRC, .size = 1, .shift = 16 },
+};
+
+static struct clksrc_clk hsmmc_mux1 = {
+	.clk	= {
+		.name		= "hsmmc-if",
+		.devname	= "s3c-sdhci.1",
+		.ctrlbit	= (1 << 12),
+		.enable		= s3c2443_clkcon_enable_s,
+	},
+	.sources	= &(struct clksrc_sources) {
+		.nr_sources	= 2,
+		.sources	= (struct clk * []) {
+			[0]	= &hsmmc_div[1].clk,
+			[1]	= NULL, /* to fix */
 		},
-		.reg_src = { .reg = S3C2443_CLKSRC, .size = 1, .shift = 17 },
 	},
+	.reg_src = { .reg = S3C2443_CLKSRC, .size = 1, .shift = 17 },
 };
 
 static struct clk hsmmc0_clk = {
@@ -144,8 +143,14 @@ static struct clksrc_clk *clksrcs[] __initdata = {
 	&hsspi_mux,
 	&hsmmc_div[0],
 	&hsmmc_div[1],
-	&hsmmc_mux[0],
-	&hsmmc_mux[1],
+	&hsmmc_mux0,
+	&hsmmc_mux1,
+};
+
+static struct clk_lookup s3c2416_clk_lookup[] = {
+	CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.0", &hsmmc0_clk),
+	CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.2", &hsmmc_mux0.clk),
+	CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.2", &hsmmc_mux1.clk),
 };
 
 void __init s3c2416_init_clocks(int xtal)
@@ -167,6 +172,7 @@ void __init s3c2416_init_clocks(int xtal)
 		s3c_register_clksrc(clksrcs[ptr], 1);
 
 	s3c24xx_register_clock(&hsmmc0_clk);
+	clkdev_add_table(s3c2416_clk_lookup, ARRAY_SIZE(s3c2416_clk_lookup));
 
 	s3c_pwmclk_init();
 
diff --git a/arch/arm/mach-s3c2416/mach-smdk2416.c b/arch/arm/mach-s3c2416/mach-smdk2416.c
index 66b71736609c..eebe1e72b93e 100644
--- a/arch/arm/mach-s3c2416/mach-smdk2416.c
+++ b/arch/arm/mach-s3c2416/mach-smdk2416.c
@@ -50,6 +50,7 @@
 #include <plat/nand.h>
 #include <plat/sdhci.h>
 #include <plat/udc.h>
+#include <linux/platform_data/s3c-hsudc.h>
 
 #include <plat/regs-fb-v4.h>
 #include <plat/fb.h>
diff --git a/arch/arm/mach-s3c2416/setup-sdhci.c b/arch/arm/mach-s3c2416/setup-sdhci.c
deleted file mode 100644
index cee53955eb02..000000000000
--- a/arch/arm/mach-s3c2416/setup-sdhci.c
+++ /dev/null
@@ -1,24 +0,0 @@
-/* linux/arch/arm/mach-s3c2416/setup-sdhci.c
- *
- * Copyright 2010 Promwad Innovation Company
- *	Yauhen Kharuzhy <yauhen.kharuzhy@promwad.com>
- *
- * S3C2416 - Helper functions for settign up SDHCI device(s) (HSMMC)
- *
- * Based on mach-s3c64xx/setup-sdhci.c
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
-*/
-
-#include <linux/types.h>
-
-/* clock sources for the mmc bus clock, order as for the ctrl2[5..4] */
-
-char *s3c2416_hsmmc_clksrcs[4] = {
-	[0] = "hsmmc",
-	[1] = "hsmmc",
-	[2] = "hsmmc-if",
-	/* [3] = "48m", - note not successfully used yet */
-};
diff --git a/arch/arm/mach-s3c2440/clock.c b/arch/arm/mach-s3c2440/clock.c
index d8957592fdc4..bedbc87a3426 100644
--- a/arch/arm/mach-s3c2440/clock.c
+++ b/arch/arm/mach-s3c2440/clock.c
@@ -33,6 +33,7 @@
 #include <linux/mutex.h>
 #include <linux/clk.h>
 #include <linux/io.h>
+#include <linux/serial_core.h>
 
 #include <mach/hardware.h>
 #include <linux/atomic.h>
@@ -42,6 +43,7 @@
 
 #include <plat/clock.h>
 #include <plat/cpu.h>
+#include <plat/regs-serial.h>
 
 /* S3C2440 extended clock support */
 
@@ -107,6 +109,46 @@ static struct clk s3c2440_clk_ac97 = {
 	.ctrlbit	= S3C2440_CLKCON_CAMERA,
 };
 
+static unsigned long  s3c2440_fclk_n_getrate(struct clk *clk)
+{
+	unsigned long ucon0, ucon1, ucon2, divisor;
+
+	/* the fun of calculating the uart divisors on the s3c2440 */
+	ucon0 = __raw_readl(S3C24XX_VA_UART0 + S3C2410_UCON);
+	ucon1 = __raw_readl(S3C24XX_VA_UART1 + S3C2410_UCON);
+	ucon2 = __raw_readl(S3C24XX_VA_UART2 + S3C2410_UCON);
+
+	ucon0 &= S3C2440_UCON0_DIVMASK;
+	ucon1 &= S3C2440_UCON1_DIVMASK;
+	ucon2 &= S3C2440_UCON2_DIVMASK;
+
+	if (ucon0 != 0)
+		divisor = (ucon0 >> S3C2440_UCON_DIVSHIFT) + 6;
+	else if (ucon1 != 0)
+		divisor = (ucon1 >> S3C2440_UCON_DIVSHIFT) + 21;
+	else if (ucon2 != 0)
+		divisor = (ucon2 >> S3C2440_UCON_DIVSHIFT) + 36;
+	else
+		/* manual calims 44, seems to be 9 */
+		divisor = 9;
+
+	return clk_get_rate(clk->parent) / divisor;
+}
+
+static struct clk s3c2440_clk_fclk_n = {
+	.name		= "fclk_n",
+	.parent		= &clk_f,
+	.ops		= &(struct clk_ops) {
+		.get_rate	= s3c2440_fclk_n_getrate,
+	},
+};
+
+static struct clk_lookup s3c2440_clk_lookup[] = {
+	CLKDEV_INIT(NULL, "clk_uart_baud1", &s3c24xx_uclk),
+	CLKDEV_INIT(NULL, "clk_uart_baud2", &clk_p),
+	CLKDEV_INIT(NULL, "clk_uart_baud3", &s3c2440_clk_fclk_n),
+};
+
 static int s3c2440_clk_add(struct device *dev)
 {
 	struct clk *clock_upll;
@@ -125,10 +167,12 @@ static int s3c2440_clk_add(struct device *dev)
 	s3c2440_clk_cam.parent = clock_h;
 	s3c2440_clk_ac97.parent = clock_p;
 	s3c2440_clk_cam_upll.parent = clock_upll;
+	s3c24xx_register_clock(&s3c2440_clk_fclk_n);
 
 	s3c24xx_register_clock(&s3c2440_clk_ac97);
 	s3c24xx_register_clock(&s3c2440_clk_cam);
 	s3c24xx_register_clock(&s3c2440_clk_cam_upll);
+	clkdev_add_table(s3c2440_clk_lookup, ARRAY_SIZE(s3c2440_clk_lookup));
 
 	clk_disable(&s3c2440_clk_ac97);
 	clk_disable(&s3c2440_clk_cam);
diff --git a/arch/arm/mach-s3c2440/mach-anubis.c b/arch/arm/mach-s3c2440/mach-anubis.c
index 121ff8d2c887..24569550de1a 100644
--- a/arch/arm/mach-s3c2440/mach-anubis.c
+++ b/arch/arm/mach-s3c2440/mach-anubis.c
@@ -98,22 +98,6 @@ static struct map_desc anubis_iodesc[] __initdata = {
 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
 
-static struct s3c24xx_uart_clksrc anubis_serial_clocks[] = {
-	[0] = {
-		.name		= "uclk",
-		.divisor	= 1,
-		.min_baud	= 0,
-		.max_baud	= 0,
-	},
-	[1] = {
-		.name		= "pclk",
-		.divisor	= 1,
-		.min_baud	= 0,
-		.max_baud	= 0,
-	}
-};
-
-
 static struct s3c2410_uartcfg anubis_uartcfgs[] __initdata = {
 	[0] = {
 		.hwport	     = 0,
@@ -121,8 +105,7 @@ static struct s3c2410_uartcfg anubis_uartcfgs[] __initdata = {
 		.ucon	     = UCON,
 		.ulcon	     = ULCON,
 		.ufcon	     = UFCON,
-		.clocks	     = anubis_serial_clocks,
-		.clocks_size = ARRAY_SIZE(anubis_serial_clocks),
+		.clk_sel	= S3C2410_UCON_CLKSEL1 | S3C2410_UCON_CLKSEL2,
 	},
 	[1] = {
 		.hwport	     = 2,
@@ -130,8 +113,7 @@ static struct s3c2410_uartcfg anubis_uartcfgs[] __initdata = {
 		.ucon	     = UCON,
 		.ulcon	     = ULCON,
 		.ufcon	     = UFCON,
-		.clocks	     = anubis_serial_clocks,
-		.clocks_size = ARRAY_SIZE(anubis_serial_clocks),
+		.clk_sel	= S3C2410_UCON_CLKSEL1 | S3C2410_UCON_CLKSEL2,
 	},
 };
 
diff --git a/arch/arm/mach-s3c2440/mach-at2440evb.c b/arch/arm/mach-s3c2440/mach-at2440evb.c
index b7e334f07da4..d6a9763110cd 100644
--- a/arch/arm/mach-s3c2440/mach-at2440evb.c
+++ b/arch/arm/mach-s3c2440/mach-at2440evb.c
@@ -59,22 +59,6 @@ static struct map_desc at2440evb_iodesc[] __initdata = {
 #define ULCON (S3C2410_LCON_CS8 | S3C2410_LCON_PNONE)
 #define UFCON (S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE)
 
-static struct s3c24xx_uart_clksrc at2440evb_serial_clocks[] = {
-	[0] = {
-		.name		= "uclk",
-		.divisor	= 1,
-		.min_baud	= 0,
-		.max_baud	= 0,
-	},
-	[1] = {
-		.name		= "pclk",
-		.divisor	= 1,
-		.min_baud	= 0,
-		.max_baud	= 0,
-	}
-};
-
-
 static struct s3c2410_uartcfg at2440evb_uartcfgs[] __initdata = {
 	[0] = {
 		.hwport	     = 0,
@@ -82,8 +66,7 @@ static struct s3c2410_uartcfg at2440evb_uartcfgs[] __initdata = {
 		.ucon	     = UCON,
 		.ulcon	     = ULCON,
 		.ufcon	     = UFCON,
-		.clocks	     = at2440evb_serial_clocks,
-		.clocks_size = ARRAY_SIZE(at2440evb_serial_clocks),
+		.clk_sel	= S3C2410_UCON_CLKSEL1 | S3C2410_UCON_CLKSEL2,
 	},
 	[1] = {
 		.hwport	     = 1,
@@ -91,8 +74,7 @@ static struct s3c2410_uartcfg at2440evb_uartcfgs[] __initdata = {
 		.ucon	     = UCON,
 		.ulcon	     = ULCON,
 		.ufcon	     = UFCON,
-		.clocks	     = at2440evb_serial_clocks,
-		.clocks_size = ARRAY_SIZE(at2440evb_serial_clocks),
+		.clk_sel	= S3C2410_UCON_CLKSEL1 | S3C2410_UCON_CLKSEL2,
 	},
 };
 
diff --git a/arch/arm/mach-s3c2440/mach-mini2440.c b/arch/arm/mach-s3c2440/mach-mini2440.c
index 437322ffd88d..adbbb85bc4cd 100644
--- a/arch/arm/mach-s3c2440/mach-mini2440.c
+++ b/arch/arm/mach-s3c2440/mach-mini2440.c
@@ -169,6 +169,24 @@ static struct s3c2410fb_display mini2440_lcd_cfg[] __initdata = {
 		.lcdcon5	= (S3C2410_LCDCON5_FRM565 |
 				   S3C2410_LCDCON5_HWSWP),
 	},
+	/* mini2440 + 3.5" TFT (LCD-W35i, LQ035Q1DG06 type) + touchscreen*/
+	[3] = {
+		_LCD_DECLARE(
+			/* clock */
+			7,
+			/* xres, margin_right, margin_left, hsync */
+			320, 68, 66, 4,
+			/* yres, margin_top, margin_bottom, vsync */
+			240, 4, 4, 9,
+			/* refresh rate */
+			60),
+		.lcdcon5	= (S3C2410_LCDCON5_FRM565 |
+				   S3C2410_LCDCON5_INVVDEN |
+				   S3C2410_LCDCON5_INVVFRAME |
+				   S3C2410_LCDCON5_INVVLINE |
+				   S3C2410_LCDCON5_INVVCLK |
+				   S3C2410_LCDCON5_HWSWP),
+	},
 };
 
 /* todo - put into gpio header */
diff --git a/arch/arm/mach-s3c2440/mach-osiris.c b/arch/arm/mach-s3c2440/mach-osiris.c
index e795715fba30..4c480ef734f6 100644
--- a/arch/arm/mach-s3c2440/mach-osiris.c
+++ b/arch/arm/mach-s3c2440/mach-osiris.c
@@ -102,21 +102,6 @@ static struct map_desc osiris_iodesc[] __initdata = {
 #define ULCON S3C2410_LCON_CS8 | S3C2410_LCON_PNONE | S3C2410_LCON_STOPB
 #define UFCON S3C2410_UFCON_RXTRIG8 | S3C2410_UFCON_FIFOMODE
 
-static struct s3c24xx_uart_clksrc osiris_serial_clocks[] = {
-	[0] = {
-		.name		= "uclk",
-		.divisor	= 1,
-		.min_baud	= 0,
-		.max_baud	= 0,
-	},
-	[1] = {
-		.name		= "pclk",
-		.divisor	= 1,
-		.min_baud	= 0,
-		.max_baud	= 0,
-	}
-};
-
 static struct s3c2410_uartcfg osiris_uartcfgs[] __initdata = {
 	[0] = {
 		.hwport	     = 0,
@@ -124,8 +109,7 @@ static struct s3c2410_uartcfg osiris_uartcfgs[] __initdata = {
 		.ucon	     = UCON,
 		.ulcon	     = ULCON,
 		.ufcon	     = UFCON,
-		.clocks	     = osiris_serial_clocks,
-		.clocks_size = ARRAY_SIZE(osiris_serial_clocks),
+		.clk_sel	= S3C2410_UCON_CLKSEL1 | S3C2410_UCON_CLKSEL2,
 	},
 	[1] = {
 		.hwport	     = 1,
@@ -133,8 +117,7 @@ static struct s3c2410_uartcfg osiris_uartcfgs[] __initdata = {
 		.ucon	     = UCON,
 		.ulcon	     = ULCON,
 		.ufcon	     = UFCON,
-		.clocks	     = osiris_serial_clocks,
-		.clocks_size = ARRAY_SIZE(osiris_serial_clocks),
+		.clk_sel	= S3C2410_UCON_CLKSEL1 | S3C2410_UCON_CLKSEL2,
 	},
 	[2] = {
 		.hwport	     = 2,
@@ -142,8 +125,7 @@ static struct s3c2410_uartcfg osiris_uartcfgs[] __initdata = {
 		.ucon	     = UCON,
 		.ulcon	     = ULCON,
 		.ufcon	     = UFCON,
-		.clocks	     = osiris_serial_clocks,
-		.clocks_size = ARRAY_SIZE(osiris_serial_clocks),
+		.clk_sel	= S3C2410_UCON_CLKSEL1 | S3C2410_UCON_CLKSEL2,
 	}
 };
 
diff --git a/arch/arm/mach-s3c2440/mach-rx1950.c b/arch/arm/mach-s3c2440/mach-rx1950.c
index 332d7533bd96..80077f6472ee 100644
--- a/arch/arm/mach-s3c2440/mach-rx1950.c
+++ b/arch/arm/mach-s3c2440/mach-rx1950.c
@@ -70,15 +70,6 @@
 static struct map_desc rx1950_iodesc[] __initdata = {
 };
 
-static struct s3c24xx_uart_clksrc rx1950_serial_clocks[] = {
-	[0] = {
-	       .name = "fclk",
-	       .divisor = 0x0a,
-	       .min_baud = 0,
-	       .max_baud = 0,
-	},
-};
-
 static struct s3c2410_uartcfg rx1950_uartcfgs[] __initdata = {
 	[0] = {
 	       .hwport = 0,
@@ -86,8 +77,7 @@ static struct s3c2410_uartcfg rx1950_uartcfgs[] __initdata = {
 	       .ucon = 0x3c5,
 	       .ulcon = 0x03,
 	       .ufcon = 0x51,
-	       .clocks = rx1950_serial_clocks,
-	       .clocks_size = ARRAY_SIZE(rx1950_serial_clocks),
+		.clk_sel = S3C2410_UCON_CLKSEL3,
 	},
 	[1] = {
 	       .hwport = 1,
@@ -95,8 +85,7 @@ static struct s3c2410_uartcfg rx1950_uartcfgs[] __initdata = {
 	       .ucon = 0x3c5,
 	       .ulcon = 0x03,
 	       .ufcon = 0x51,
-	       .clocks = rx1950_serial_clocks,
-	       .clocks_size = ARRAY_SIZE(rx1950_serial_clocks),
+		.clk_sel = S3C2410_UCON_CLKSEL3,
 	},
 	/* IR port */
 	[2] = {
@@ -105,8 +94,7 @@ static struct s3c2410_uartcfg rx1950_uartcfgs[] __initdata = {
 	       .ucon = 0x3c5,
 	       .ulcon = 0x43,
 	       .ufcon = 0xf1,
-	       .clocks = rx1950_serial_clocks,
-	       .clocks_size = ARRAY_SIZE(rx1950_serial_clocks),
+		.clk_sel = S3C2410_UCON_CLKSEL3,
 	},
 };
 
diff --git a/arch/arm/mach-s3c2440/mach-rx3715.c b/arch/arm/mach-s3c2440/mach-rx3715.c
index 80a0972873c2..20103bafbd4b 100644
--- a/arch/arm/mach-s3c2440/mach-rx3715.c
+++ b/arch/arm/mach-s3c2440/mach-rx3715.c
@@ -69,16 +69,6 @@ static struct map_desc rx3715_iodesc[] __initdata = {
 	},
 };
 
-
-static struct s3c24xx_uart_clksrc rx3715_serial_clocks[] = {
-	[0] = {
-		.name		= "fclk",
-		.divisor	= 0,
-		.min_baud	= 0,
-		.max_baud	= 0,
-	}
-};
-
 static struct s3c2410_uartcfg rx3715_uartcfgs[] = {
 	[0] = {
 		.hwport	     = 0,
@@ -86,8 +76,7 @@ static struct s3c2410_uartcfg rx3715_uartcfgs[] = {
 		.ucon	     = 0x3c5,
 		.ulcon	     = 0x03,
 		.ufcon	     = 0x51,
-		.clocks	     = rx3715_serial_clocks,
-		.clocks_size = ARRAY_SIZE(rx3715_serial_clocks),
+		.clk_sel	= S3C2410_UCON_CLKSEL3,
 	},
 	[1] = {
 		.hwport	     = 1,
@@ -95,8 +84,7 @@ static struct s3c2410_uartcfg rx3715_uartcfgs[] = {
 		.ucon	     = 0x3c5,
 		.ulcon	     = 0x03,
 		.ufcon	     = 0x00,
-		.clocks	     = rx3715_serial_clocks,
-		.clocks_size = ARRAY_SIZE(rx3715_serial_clocks),
+		.clk_sel	= S3C2410_UCON_CLKSEL3,
 	},
 	/* IR port */
 	[2] = {
@@ -105,8 +93,7 @@ static struct s3c2410_uartcfg rx3715_uartcfgs[] = {
 		.ucon	     = 0x3c5,
 		.ulcon	     = 0x43,
 		.ufcon	     = 0x51,
-		.clocks	     = rx3715_serial_clocks,
-		.clocks_size = ARRAY_SIZE(rx3715_serial_clocks),
+		.clk_sel	= S3C2410_UCON_CLKSEL3,
 	}
 };
 
diff --git a/arch/arm/mach-s3c64xx/Kconfig b/arch/arm/mach-s3c64xx/Kconfig
index 381586c7b1b2..dd20c66cd700 100644
--- a/arch/arm/mach-s3c64xx/Kconfig
+++ b/arch/arm/mach-s3c64xx/Kconfig
@@ -78,6 +78,11 @@ config S3C64XX_SETUP_SDHCI_GPIO
 	help
 	  Common setup code for S3C64XX SDHCI GPIO configurations
 
+config S3C64XX_SETUP_SPI
+	bool
+	help
+	 Common setup code for SPI GPIO configurations
+
 # S36400 Macchine support
 
 config MACH_SMDK6400
@@ -189,7 +194,7 @@ config SMDK6410_WM1190_EV1
 	depends on MACH_SMDK6410
 	select REGULATOR
 	select REGULATOR_WM8350
-	select S3C24XX_GPIO_EXTRA64
+	select SAMSUNG_GPIO_EXTRA64
 	select MFD_WM8350_I2C
 	select MFD_WM8350_CONFIG_MODE_0
 	select MFD_WM8350_CONFIG_MODE_3
@@ -207,7 +212,7 @@ config SMDK6410_WM1192_EV1
 	depends on MACH_SMDK6410
 	select REGULATOR
 	select REGULATOR_WM831X
-	select S3C24XX_GPIO_EXTRA64
+	select SAMSUNG_GPIO_EXTRA64
 	select MFD_WM831X
 	select MFD_WM831X_I2C
 	help
@@ -277,6 +282,7 @@ config MACH_WLF_CRAGG_6410
 	select S3C64XX_SETUP_IDE
 	select S3C64XX_SETUP_FB_24BPP
 	select S3C64XX_SETUP_KEYPAD
+	select S3C64XX_SETUP_SPI
 	select SAMSUNG_DEV_ADC
 	select SAMSUNG_DEV_KEYPAD
 	select S3C_DEV_USB_HOST
@@ -287,8 +293,8 @@ config MACH_WLF_CRAGG_6410
 	select S3C_DEV_I2C1
 	select S3C_DEV_WDT
 	select S3C_DEV_RTC
-	select S3C64XX_DEV_SPI
-	select S3C24XX_GPIO_EXTRA128
+	select S3C64XX_DEV_SPI0
+	select SAMSUNG_GPIO_EXTRA128
 	select I2C
 	help
 	  Machine support for the Wolfson Cragganmore S3C6410 variant.
diff --git a/arch/arm/mach-s3c64xx/Makefile b/arch/arm/mach-s3c64xx/Makefile
index f37016cebbe3..1822ac2eba31 100644
--- a/arch/arm/mach-s3c64xx/Makefile
+++ b/arch/arm/mach-s3c64xx/Makefile
@@ -40,8 +40,8 @@ obj-$(CONFIG_S3C64XX_SETUP_I2C0)	+= setup-i2c0.o
 obj-$(CONFIG_S3C64XX_SETUP_I2C1)	+= setup-i2c1.o
 obj-$(CONFIG_S3C64XX_SETUP_IDE)		+= setup-ide.o
 obj-$(CONFIG_S3C64XX_SETUP_KEYPAD)	+= setup-keypad.o
-obj-$(CONFIG_S3C64XX_SETUP_SDHCI)	+= setup-sdhci.o
 obj-$(CONFIG_S3C64XX_SETUP_SDHCI_GPIO)	+= setup-sdhci-gpio.o
+obj-$(CONFIG_S3C64XX_SETUP_SPI)		+= setup-spi.o
 
 # Machine support
 
diff --git a/arch/arm/mach-s3c64xx/clock.c b/arch/arm/mach-s3c64xx/clock.c
index 625219b9cefc..31bb27dc4aeb 100644
--- a/arch/arm/mach-s3c64xx/clock.c
+++ b/arch/arm/mach-s3c64xx/clock.c
@@ -184,18 +184,6 @@ static struct clk init_clocks_off[] = {
 		.enable		= s3c64xx_pclk_ctrl,
 		.ctrlbit	= S3C_CLKCON_PCLK_SPI1,
 	}, {
-		.name		= "spi_48m",
-		.devname	= "s3c64xx-spi.0",
-		.parent		= &clk_48m,
-		.enable		= s3c64xx_sclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_SCLK_SPI0_48,
-	}, {
-		.name		= "spi_48m",
-		.devname	= "s3c64xx-spi.1",
-		.parent		= &clk_48m,
-		.enable		= s3c64xx_sclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_SCLK_SPI1_48,
-	}, {
 		.name		= "48m",
 		.devname	= "s3c-sdhci.0",
 		.parent		= &clk_48m,
@@ -226,6 +214,22 @@ static struct clk init_clocks_off[] = {
 	},
 };
 
+static struct clk clk_48m_spi0 = {
+	.name		= "spi_48m",
+	.devname	= "s3c64xx-spi.0",
+	.parent		= &clk_48m,
+	.enable		= s3c64xx_sclk_ctrl,
+	.ctrlbit	= S3C_CLKCON_SCLK_SPI0_48,
+};
+
+static struct clk clk_48m_spi1 = {
+	.name		= "spi_48m",
+	.devname	= "s3c64xx-spi.1",
+	.parent		= &clk_48m,
+	.enable		= s3c64xx_sclk_ctrl,
+	.ctrlbit	= S3C_CLKCON_SCLK_SPI1_48,
+};
+
 static struct clk init_clocks[] = {
 	{
 		.name		= "lcd",
@@ -243,24 +247,6 @@ static struct clk init_clocks[] = {
 		.enable		= s3c64xx_hclk_ctrl,
 		.ctrlbit	= S3C_CLKCON_HCLK_UHOST,
 	}, {
-		.name		= "hsmmc",
-		.devname	= "s3c-sdhci.0",
-		.parent		= &clk_h,
-		.enable		= s3c64xx_hclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_HCLK_HSMMC0,
-	}, {
-		.name		= "hsmmc",
-		.devname	= "s3c-sdhci.1",
-		.parent		= &clk_h,
-		.enable		= s3c64xx_hclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_HCLK_HSMMC1,
-	}, {
-		.name		= "hsmmc",
-		.devname	= "s3c-sdhci.2",
-		.parent		= &clk_h,
-		.enable		= s3c64xx_hclk_ctrl,
-		.ctrlbit	= S3C_CLKCON_HCLK_HSMMC2,
-	}, {
 		.name		= "otg",
 		.parent		= &clk_h,
 		.enable		= s3c64xx_hclk_ctrl,
@@ -310,6 +296,29 @@ static struct clk init_clocks[] = {
 	}
 };
 
+static struct clk clk_hsmmc0 = {
+	.name		= "hsmmc",
+	.devname	= "s3c-sdhci.0",
+	.parent		= &clk_h,
+	.enable		= s3c64xx_hclk_ctrl,
+	.ctrlbit	= S3C_CLKCON_HCLK_HSMMC0,
+};
+
+static struct clk clk_hsmmc1 = {
+	.name		= "hsmmc",
+	.devname	= "s3c-sdhci.1",
+	.parent		= &clk_h,
+	.enable		= s3c64xx_hclk_ctrl,
+	.ctrlbit	= S3C_CLKCON_HCLK_HSMMC1,
+};
+
+static struct clk clk_hsmmc2 = {
+	.name		= "hsmmc",
+	.devname	= "s3c-sdhci.2",
+	.parent		= &clk_h,
+	.enable		= s3c64xx_hclk_ctrl,
+	.ctrlbit	= S3C_CLKCON_HCLK_HSMMC2,
+};
 
 static struct clk clk_fout_apll = {
 	.name		= "fout_apll",
@@ -578,36 +587,6 @@ static struct clksrc_sources clkset_camif = {
 static struct clksrc_clk clksrcs[] = {
 	{
 		.clk	= {
-			.name		= "mmc_bus",
-			.devname	= "s3c-sdhci.0",
-			.ctrlbit        = S3C_CLKCON_SCLK_MMC0,
-			.enable		= s3c64xx_sclk_ctrl,
-		},
-		.reg_src	= { .reg = S3C_CLK_SRC, .shift = 18, .size = 2  },
-		.reg_div	= { .reg = S3C_CLK_DIV1, .shift = 0, .size = 4  },
-		.sources	= &clkset_spi_mmc,
-	}, {
-		.clk	= {
-			.name		= "mmc_bus",
-			.devname	= "s3c-sdhci.1",
-			.ctrlbit        = S3C_CLKCON_SCLK_MMC1,
-			.enable		= s3c64xx_sclk_ctrl,
-		},
-		.reg_src	= { .reg = S3C_CLK_SRC, .shift = 20, .size = 2  },
-		.reg_div	= { .reg = S3C_CLK_DIV1, .shift = 4, .size = 4  },
-		.sources	= &clkset_spi_mmc,
-	}, {
-		.clk	= {
-			.name		= "mmc_bus",
-			.devname	= "s3c-sdhci.2",
-			.ctrlbit        = S3C_CLKCON_SCLK_MMC2,
-			.enable		= s3c64xx_sclk_ctrl,
-		},
-		.reg_src	= { .reg = S3C_CLK_SRC, .shift = 22, .size = 2  },
-		.reg_div 	= { .reg = S3C_CLK_DIV1, .shift = 8, .size = 4  },
-		.sources	= &clkset_spi_mmc,
-	}, {
-		.clk	= {
 			.name		= "usb-bus-host",
 			.ctrlbit        = S3C_CLKCON_SCLK_UHOST,
 			.enable		= s3c64xx_sclk_ctrl,
@@ -617,35 +596,6 @@ static struct clksrc_clk clksrcs[] = {
 		.sources	= &clkset_uhost,
 	}, {
 		.clk	= {
-			.name		= "uclk1",
-			.ctrlbit        = S3C_CLKCON_SCLK_UART,
-			.enable		= s3c64xx_sclk_ctrl,
-		},
-		.reg_src	= { .reg = S3C_CLK_SRC, .shift = 13, .size = 1  },
-		.reg_div	= { .reg = S3C_CLK_DIV2, .shift = 16, .size = 4  },
-		.sources	= &clkset_uart,
-	}, {
-/* Where does UCLK0 come from? */
-		.clk	= {
-			.name		= "spi-bus",
-			.devname	= "s3c64xx-spi.0",
-			.ctrlbit        = S3C_CLKCON_SCLK_SPI0,
-			.enable		= s3c64xx_sclk_ctrl,
-		},
-		.reg_src	= { .reg = S3C_CLK_SRC, .shift = 14, .size = 2  },
-		.reg_div	= { .reg = S3C_CLK_DIV2, .shift = 0, .size = 4  },
-		.sources	= &clkset_spi_mmc,
-	}, {
-		.clk	= {
-			.name		= "spi-bus",
-			.devname	= "s3c64xx-spi.1",
-			.enable		= s3c64xx_sclk_ctrl,
-		},
-		.reg_src	= { .reg = S3C_CLK_SRC, .shift = 16, .size = 2  },
-		.reg_div	= { .reg = S3C_CLK_DIV2, .shift = 4, .size = 4  },
-		.sources	= &clkset_spi_mmc,
-	}, {
-		.clk	= {
 			.name		= "audio-bus",
 			.devname	= "samsung-i2s.0",
 			.ctrlbit        = S3C_CLKCON_SCLK_AUDIO0,
@@ -695,6 +645,78 @@ static struct clksrc_clk clksrcs[] = {
 	},
 };
 
+/* Where does UCLK0 come from? */
+static struct clksrc_clk clk_sclk_uclk = {
+	.clk	= {
+		.name		= "uclk1",
+		.ctrlbit        = S3C_CLKCON_SCLK_UART,
+		.enable		= s3c64xx_sclk_ctrl,
+	},
+	.reg_src	= { .reg = S3C_CLK_SRC, .shift = 13, .size = 1  },
+	.reg_div	= { .reg = S3C_CLK_DIV2, .shift = 16, .size = 4  },
+	.sources	= &clkset_uart,
+};
+
+static struct clksrc_clk clk_sclk_mmc0 = {
+	.clk	= {
+		.name		= "mmc_bus",
+		.devname	= "s3c-sdhci.0",
+		.ctrlbit        = S3C_CLKCON_SCLK_MMC0,
+		.enable		= s3c64xx_sclk_ctrl,
+	},
+	.reg_src	= { .reg = S3C_CLK_SRC, .shift = 18, .size = 2  },
+	.reg_div	= { .reg = S3C_CLK_DIV1, .shift = 0, .size = 4  },
+	.sources	= &clkset_spi_mmc,
+};
+
+static struct clksrc_clk clk_sclk_mmc1 = {
+	.clk	= {
+		.name		= "mmc_bus",
+		.devname	= "s3c-sdhci.1",
+		.ctrlbit        = S3C_CLKCON_SCLK_MMC1,
+		.enable		= s3c64xx_sclk_ctrl,
+	},
+	.reg_src	= { .reg = S3C_CLK_SRC, .shift = 20, .size = 2  },
+	.reg_div	= { .reg = S3C_CLK_DIV1, .shift = 4, .size = 4  },
+	.sources	= &clkset_spi_mmc,
+};
+
+static struct clksrc_clk clk_sclk_mmc2 = {
+	.clk	= {
+		.name		= "mmc_bus",
+		.devname	= "s3c-sdhci.2",
+		.ctrlbit        = S3C_CLKCON_SCLK_MMC2,
+		.enable		= s3c64xx_sclk_ctrl,
+	},
+	.reg_src	= { .reg = S3C_CLK_SRC, .shift = 22, .size = 2  },
+	.reg_div	= { .reg = S3C_CLK_DIV1, .shift = 8, .size = 4  },
+	.sources	= &clkset_spi_mmc,
+};
+
+static struct clksrc_clk clk_sclk_spi0 = {
+	.clk	= {
+		.name		= "spi-bus",
+		.devname	= "s3c64xx-spi.0",
+		.ctrlbit	= S3C_CLKCON_SCLK_SPI0,
+		.enable		= s3c64xx_sclk_ctrl,
+	},
+	.reg_src = { .reg = S3C_CLK_SRC, .shift = 14, .size = 2 },
+	.reg_div = { .reg = S3C_CLK_DIV2, .shift = 0, .size = 4 },
+	.sources = &clkset_spi_mmc,
+};
+
+static struct clksrc_clk clk_sclk_spi1 = {
+	.clk	= {
+		.name		= "spi-bus",
+		.devname	= "s3c64xx-spi.1",
+		.ctrlbit	= S3C_CLKCON_SCLK_SPI1,
+		.enable		= s3c64xx_sclk_ctrl,
+	},
+	.reg_src = { .reg = S3C_CLK_SRC, .shift = 16, .size = 2 },
+	.reg_div = { .reg = S3C_CLK_DIV2, .shift = 4, .size = 4 },
+	.sources = &clkset_spi_mmc,
+};
+
 /* Clock initialisation code */
 
 static struct clksrc_clk *init_parents[] = {
@@ -703,6 +725,39 @@ static struct clksrc_clk *init_parents[] = {
 	&clk_mout_mpll,
 };
 
+static struct clksrc_clk *clksrc_cdev[] = {
+	&clk_sclk_uclk,
+	&clk_sclk_mmc0,
+	&clk_sclk_mmc1,
+	&clk_sclk_mmc2,
+	&clk_sclk_spi0,
+	&clk_sclk_spi1,
+};
+
+static struct clk *clk_cdev[] = {
+	&clk_hsmmc0,
+	&clk_hsmmc1,
+	&clk_hsmmc2,
+	&clk_48m_spi0,
+	&clk_48m_spi1,
+};
+
+static struct clk_lookup s3c64xx_clk_lookup[] = {
+	CLKDEV_INIT(NULL, "clk_uart_baud2", &clk_p),
+	CLKDEV_INIT(NULL, "clk_uart_baud3", &clk_sclk_uclk.clk),
+	CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.0", &clk_hsmmc0),
+	CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.0", &clk_hsmmc1),
+	CLKDEV_INIT("s3c-sdhci.2", "mmc_busclk.0", &clk_hsmmc2),
+	CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.2", &clk_sclk_mmc0.clk),
+	CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.2", &clk_sclk_mmc1.clk),
+	CLKDEV_INIT("s3c-sdhci.2", "mmc_busclk.2", &clk_sclk_mmc2.clk),
+	CLKDEV_INIT(NULL, "spi_busclk0", &clk_p),
+	CLKDEV_INIT("s3c64xx-spi.0", "spi_busclk1", &clk_sclk_spi0.clk),
+	CLKDEV_INIT("s3c64xx-spi.0", "spi_busclk2", &clk_48m_spi0),
+	CLKDEV_INIT("s3c64xx-spi.1", "spi_busclk1", &clk_sclk_spi1.clk),
+	CLKDEV_INIT("s3c64xx-spi.1", "spi_busclk2", &clk_48m_spi1),
+};
+
 #define GET_DIV(clk, field) ((((clk) & field##_MASK) >> field##_SHIFT) + 1)
 
 void __init_or_cpufreq s3c64xx_setup_clocks(void)
@@ -811,6 +866,8 @@ static struct clk *clks[] __initdata = {
 void __init s3c64xx_register_clocks(unsigned long xtal, 
 				    unsigned armclk_divlimit)
 {
+	unsigned int cnt;
+
 	armclk_mask = armclk_divlimit;
 
 	s3c24xx_register_baseclocks(xtal);
@@ -821,7 +878,15 @@ void __init s3c64xx_register_clocks(unsigned long xtal,
 	s3c_register_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
 	s3c_disable_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
 
+	s3c24xx_register_clocks(clk_cdev, ARRAY_SIZE(clk_cdev));
+	for (cnt = 0; cnt < ARRAY_SIZE(clk_cdev); cnt++)
+		s3c_disable_clocks(clk_cdev[cnt], 1);
+
 	s3c24xx_register_clocks(clks1, ARRAY_SIZE(clks1));
 	s3c_register_clksrc(clksrcs, ARRAY_SIZE(clksrcs));
+	for (cnt = 0; cnt < ARRAY_SIZE(clksrc_cdev); cnt++)
+		s3c_register_clksrc(clksrc_cdev[cnt], 1);
+	clkdev_add_table(s3c64xx_clk_lookup, ARRAY_SIZE(s3c64xx_clk_lookup));
+
 	s3c_pwmclk_init();
 }
diff --git a/arch/arm/mach-s3c64xx/dev-spi.c b/arch/arm/mach-s3c64xx/dev-spi.c
deleted file mode 100644
index 3341fd118723..000000000000
--- a/arch/arm/mach-s3c64xx/dev-spi.c
+++ /dev/null
@@ -1,180 +0,0 @@
-/* linux/arch/arm/plat-s3c64xx/dev-spi.c
- *
- * Copyright (C) 2009 Samsung Electronics Ltd.
- *	Jaswinder Singh <jassi.brar@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/kernel.h>
-#include <linux/string.h>
-#include <linux/export.h>
-#include <linux/platform_device.h>
-#include <linux/dma-mapping.h>
-#include <linux/gpio.h>
-
-#include <mach/dma.h>
-#include <mach/map.h>
-#include <mach/spi-clocks.h>
-#include <mach/irqs.h>
-
-#include <plat/s3c64xx-spi.h>
-#include <plat/gpio-cfg.h>
-#include <plat/devs.h>
-
-static char *spi_src_clks[] = {
-	[S3C64XX_SPI_SRCCLK_PCLK] = "pclk",
-	[S3C64XX_SPI_SRCCLK_SPIBUS] = "spi-bus",
-	[S3C64XX_SPI_SRCCLK_48M] = "spi_48m",
-};
-
-/* SPI Controller platform_devices */
-
-/* Since we emulate multi-cs capability, we do not touch the GPC-3,7.
- * The emulated CS is toggled by board specific mechanism, as it can
- * be either some immediate GPIO or some signal out of some other
- * chip in between ... or some yet another way.
- * We simply do not assume anything about CS.
- */
-static int s3c64xx_spi_cfg_gpio(struct platform_device *pdev)
-{
-	unsigned int base;
-
-	switch (pdev->id) {
-	case 0:
-		base = S3C64XX_GPC(0);
-		break;
-
-	case 1:
-		base = S3C64XX_GPC(4);
-		break;
-
-	default:
-		dev_err(&pdev->dev, "Invalid SPI Controller number!");
-		return -EINVAL;
-	}
-
-	s3c_gpio_cfgall_range(base, 3,
-			      S3C_GPIO_SFN(2), S3C_GPIO_PULL_UP);
-
-	return 0;
-}
-
-static struct resource s3c64xx_spi0_resource[] = {
-	[0] = {
-		.start = S3C64XX_PA_SPI0,
-		.end   = S3C64XX_PA_SPI0 + 0x100 - 1,
-		.flags = IORESOURCE_MEM,
-	},
-	[1] = {
-		.start = DMACH_SPI0_TX,
-		.end   = DMACH_SPI0_TX,
-		.flags = IORESOURCE_DMA,
-	},
-	[2] = {
-		.start = DMACH_SPI0_RX,
-		.end   = DMACH_SPI0_RX,
-		.flags = IORESOURCE_DMA,
-	},
-	[3] = {
-		.start = IRQ_SPI0,
-		.end   = IRQ_SPI0,
-		.flags = IORESOURCE_IRQ,
-	},
-};
-
-static struct s3c64xx_spi_info s3c64xx_spi0_pdata = {
-	.cfg_gpio = s3c64xx_spi_cfg_gpio,
-	.fifo_lvl_mask = 0x7f,
-	.rx_lvl_offset = 13,
-	.tx_st_done = 21,
-};
-
-static u64 spi_dmamask = DMA_BIT_MASK(32);
-
-struct platform_device s3c64xx_device_spi0 = {
-	.name		  = "s3c64xx-spi",
-	.id		  = 0,
-	.num_resources	  = ARRAY_SIZE(s3c64xx_spi0_resource),
-	.resource	  = s3c64xx_spi0_resource,
-	.dev = {
-		.dma_mask		= &spi_dmamask,
-		.coherent_dma_mask	= DMA_BIT_MASK(32),
-		.platform_data = &s3c64xx_spi0_pdata,
-	},
-};
-EXPORT_SYMBOL(s3c64xx_device_spi0);
-
-static struct resource s3c64xx_spi1_resource[] = {
-	[0] = {
-		.start = S3C64XX_PA_SPI1,
-		.end   = S3C64XX_PA_SPI1 + 0x100 - 1,
-		.flags = IORESOURCE_MEM,
-	},
-	[1] = {
-		.start = DMACH_SPI1_TX,
-		.end   = DMACH_SPI1_TX,
-		.flags = IORESOURCE_DMA,
-	},
-	[2] = {
-		.start = DMACH_SPI1_RX,
-		.end   = DMACH_SPI1_RX,
-		.flags = IORESOURCE_DMA,
-	},
-	[3] = {
-		.start = IRQ_SPI1,
-		.end   = IRQ_SPI1,
-		.flags = IORESOURCE_IRQ,
-	},
-};
-
-static struct s3c64xx_spi_info s3c64xx_spi1_pdata = {
-	.cfg_gpio = s3c64xx_spi_cfg_gpio,
-	.fifo_lvl_mask = 0x7f,
-	.rx_lvl_offset = 13,
-	.tx_st_done = 21,
-};
-
-struct platform_device s3c64xx_device_spi1 = {
-	.name		  = "s3c64xx-spi",
-	.id		  = 1,
-	.num_resources	  = ARRAY_SIZE(s3c64xx_spi1_resource),
-	.resource	  = s3c64xx_spi1_resource,
-	.dev = {
-		.dma_mask		= &spi_dmamask,
-		.coherent_dma_mask	= DMA_BIT_MASK(32),
-		.platform_data = &s3c64xx_spi1_pdata,
-	},
-};
-EXPORT_SYMBOL(s3c64xx_device_spi1);
-
-void __init s3c64xx_spi_set_info(int cntrlr, int src_clk_nr, int num_cs)
-{
-	struct s3c64xx_spi_info *pd;
-
-	/* Reject invalid configuration */
-	if (!num_cs || src_clk_nr < 0
-			|| src_clk_nr > S3C64XX_SPI_SRCCLK_48M) {
-		printk(KERN_ERR "%s: Invalid SPI configuration\n", __func__);
-		return;
-	}
-
-	switch (cntrlr) {
-	case 0:
-		pd = &s3c64xx_spi0_pdata;
-		break;
-	case 1:
-		pd = &s3c64xx_spi1_pdata;
-		break;
-	default:
-		printk(KERN_ERR "%s: Invalid SPI controller(%d)\n",
-							__func__, cntrlr);
-		return;
-	}
-
-	pd->num_cs = num_cs;
-	pd->src_clk_nr = src_clk_nr;
-	pd->src_clk_name = spi_src_clks[src_clk_nr];
-}
diff --git a/arch/arm/mach-s3c64xx/include/mach/crag6410.h b/arch/arm/mach-s3c64xx/include/mach/crag6410.h
index be9074e17dfd..5d55ab018b6b 100644
--- a/arch/arm/mach-s3c64xx/include/mach/crag6410.h
+++ b/arch/arm/mach-s3c64xx/include/mach/crag6410.h
@@ -15,9 +15,11 @@
 
 #define BANFF_PMIC_IRQ_BASE		IRQ_BOARD_START
 #define GLENFARCLAS_PMIC_IRQ_BASE	(IRQ_BOARD_START + 64)
+#define CODEC_IRQ_BASE			(IRQ_BOARD_START + 128)
 
 #define PCA935X_GPIO_BASE		GPIO_BOARD_START
-#define CODEC_GPIO_BASE		(GPIO_BOARD_START + 8)
-#define GLENFARCLAS_PMIC_GPIO_BASE	(GPIO_BOARD_START + 16)
+#define CODEC_GPIO_BASE			(GPIO_BOARD_START + 8)
+#define GLENFARCLAS_PMIC_GPIO_BASE	(GPIO_BOARD_START + 32)
+#define BANFF_PMIC_GPIO_BASE		(GPIO_BOARD_START + 64)
 
 #endif
diff --git a/arch/arm/mach-s3c64xx/include/mach/gpio.h b/arch/arm/mach-s3c64xx/include/mach/gpio.h
index 6e34c2f6e670..8b540c42d5dd 100644
--- a/arch/arm/mach-s3c64xx/include/mach/gpio.h
+++ b/arch/arm/mach-s3c64xx/include/mach/gpio.h
@@ -88,6 +88,6 @@ enum s3c_gpio_number {
 /* define the number of gpios we need to the one after the GPQ() range */
 #define GPIO_BOARD_START (S3C64XX_GPQ(S3C64XX_GPIO_Q_NR) + 1)
 
-#define BOARD_NR_GPIOS 16
+#define BOARD_NR_GPIOS	(16 + CONFIG_SAMSUNG_GPIO_EXTRA)
 
 #define ARCH_NR_GPIOS	(GPIO_BOARD_START + BOARD_NR_GPIOS)
diff --git a/arch/arm/mach-s3c64xx/include/mach/irqs.h b/arch/arm/mach-s3c64xx/include/mach/irqs.h
index 443f85b3c203..96d60e0d9372 100644
--- a/arch/arm/mach-s3c64xx/include/mach/irqs.h
+++ b/arch/arm/mach-s3c64xx/include/mach/irqs.h
@@ -169,7 +169,7 @@
 #define IRQ_BOARD_START (IRQ_EINT_GROUP9_BASE + IRQ_EINT_GROUP9_NR + 1)
 
 #ifdef CONFIG_MACH_WLF_CRAGG_6410
-#define IRQ_BOARD_NR 128
+#define IRQ_BOARD_NR 160
 #elif defined(CONFIG_SMDK6410_WM1190_EV1)
 #define IRQ_BOARD_NR 64
 #elif defined(CONFIG_SMDK6410_WM1192_EV1)
diff --git a/arch/arm/mach-s3c64xx/include/mach/map.h b/arch/arm/mach-s3c64xx/include/mach/map.h
index 23a1d71e4d53..8e2097bb208a 100644
--- a/arch/arm/mach-s3c64xx/include/mach/map.h
+++ b/arch/arm/mach-s3c64xx/include/mach/map.h
@@ -115,6 +115,8 @@
 #define S3C_PA_USB_HSOTG	S3C64XX_PA_USB_HSOTG
 #define S3C_PA_RTC		S3C64XX_PA_RTC
 #define S3C_PA_WDT		S3C64XX_PA_WATCHDOG
+#define S3C_PA_SPI0		S3C64XX_PA_SPI0
+#define S3C_PA_SPI1		S3C64XX_PA_SPI1
 
 #define SAMSUNG_PA_ADC		S3C64XX_PA_ADC
 #define SAMSUNG_PA_CFCON	S3C64XX_PA_CFCON
diff --git a/arch/arm/mach-s3c64xx/mach-crag6410-module.c b/arch/arm/mach-s3c64xx/mach-crag6410-module.c
index f208154b1382..cd3c97e2ee75 100644
--- a/arch/arm/mach-s3c64xx/mach-crag6410-module.c
+++ b/arch/arm/mach-s3c64xx/mach-crag6410-module.c
@@ -14,13 +14,43 @@
 
 #include <linux/mfd/wm831x/irq.h>
 #include <linux/mfd/wm831x/gpio.h>
+#include <linux/mfd/wm8994/pdata.h>
 
+#include <sound/wm5100.h>
 #include <sound/wm8996.h>
 #include <sound/wm8962.h>
 #include <sound/wm9081.h>
 
 #include <mach/crag6410.h>
 
+static struct wm5100_pdata wm5100_pdata = {
+	.ldo_ena = S3C64XX_GPN(7),
+	.irq_flags = IRQF_TRIGGER_HIGH,
+	.gpio_base = CODEC_GPIO_BASE,
+
+	.in_mode = {
+		WM5100_IN_DIFF,
+		WM5100_IN_DIFF,
+		WM5100_IN_DIFF,
+		WM5100_IN_SE,
+	},
+
+	.hp_pol = CODEC_GPIO_BASE + 3,
+	.jack_modes = {
+		{ WM5100_MICDET_MICBIAS3, 0, 0 },
+		{ WM5100_MICDET_MICBIAS2, 1, 1 },
+	},
+
+	.gpio_defaults = {
+		0,
+		0,
+		0,
+		0,
+		0x2, /* IRQ: CMOS output */
+		0x3, /* CLKOUT: CMOS output */
+	},
+};
+
 static struct wm8996_retune_mobile_config wm8996_retune[] = {
 	{
 		.name = "Sub LPF",
@@ -72,7 +102,6 @@ static struct wm8962_pdata wm8962_pdata __initdata = {
 		0x8000 | WM8962_GPIO_FN_DMICDAT,
 		WM8962_GPIO_FN_IRQ,    /* Open drain mode */
 	},
-	.irq_active_low = true,
 };
 
 static struct wm9081_pdata wm9081_pdata __initdata = {
@@ -91,6 +120,7 @@ static const struct i2c_board_info wm1254_devs[] = {
 
 static const struct i2c_board_info wm1255_devs[] = {
 	{ I2C_BOARD_INFO("wm5100", 0x1a),
+	  .platform_data = &wm5100_pdata,
 	  .irq = GLENFARCLAS_PMIC_IRQ_BASE + WM831X_IRQ_GPIO_2,
 	},
 	{ I2C_BOARD_INFO("wm9081", 0x6c),
@@ -104,6 +134,24 @@ static const struct i2c_board_info wm1259_devs[] = {
 	},
 };
 
+static struct wm8994_pdata wm8994_pdata = {
+	.gpio_base = CODEC_GPIO_BASE,
+	.gpio_defaults = {
+		0x3,          /* IRQ out, active high, CMOS */
+	},
+	.irq_base = CODEC_IRQ_BASE,
+	.ldo = {
+		{ .supply = "WALLVDD" },
+		{ .supply = "WALLVDD" },
+	},
+};
+
+static const struct i2c_board_info wm1277_devs[] = {
+	{ I2C_BOARD_INFO("wm8958", 0x1a),  /* WM8958 is the superset */
+	  .platform_data = &wm8994_pdata,
+	  .irq = GLENFARCLAS_PMIC_IRQ_BASE + WM831X_IRQ_GPIO_2,
+	},
+};
 
 static __devinitdata const struct {
 	u8 id;
@@ -125,6 +173,8 @@ static __devinitdata const struct {
 	{ .id = 0x3b, .name = "1255-EV1 Kilchoman",
 	  .i2c_devs = wm1255_devs, .num_i2c_devs = ARRAY_SIZE(wm1255_devs) },
 	{ .id = 0x3c, .name = "1273-EV1 Longmorn" },
+	{ .id = 0x3d, .name = "1277-EV1 Littlemill",
+	  .i2c_devs = wm1277_devs, .num_i2c_devs = ARRAY_SIZE(wm1277_devs) },
 };
 
 static __devinit int wlf_gf_module_probe(struct i2c_client *i2c,
@@ -154,8 +204,8 @@ static __devinit int wlf_gf_module_probe(struct i2c_client *i2c,
 					"Failed to register dev: %d\n", ret);
 		}
 	} else {
-		dev_warn(&i2c->dev, "Unknown module ID %d revision %d\n",
-			 id, rev);
+		dev_warn(&i2c->dev, "Unknown module ID 0x%x revision %d\n",
+			 id, rev + 1);
 	}
 
 	return 0;
diff --git a/arch/arm/mach-s3c64xx/mach-crag6410.c b/arch/arm/mach-s3c64xx/mach-crag6410.c
index fb786b6a2eae..680fd758ff2d 100644
--- a/arch/arm/mach-s3c64xx/mach-crag6410.c
+++ b/arch/arm/mach-s3c64xx/mach-crag6410.c
@@ -37,6 +37,8 @@
 #include <linux/mfd/wm831x/irq.h>
 #include <linux/mfd/wm831x/gpio.h>
 
+#include <sound/wm1250-ev1.h>
+
 #include <asm/hardware/vic.h>
 #include <asm/mach/arch.h>
 #include <asm/mach-types.h>
@@ -289,6 +291,11 @@ static struct platform_device speyside_wm8962_device = {
 	.id		= -1,
 };
 
+static struct platform_device littlemill_device = {
+	.name		= "littlemill",
+	.id		= -1,
+};
+
 static struct regulator_consumer_supply wallvdd_consumers[] = {
 	REGULATOR_SUPPLY("SPKVDD1", "1-001a"),
 	REGULATOR_SUPPLY("SPKVDD2", "1-001a"),
@@ -341,6 +348,7 @@ static struct platform_device *crag6410_devices[] __initdata = {
 	&crag6410_backlight_device,
 	&speyside_device,
 	&speyside_wm8962_device,
+	&littlemill_device,
 	&lowland_device,
 	&wallvdd_device,
 };
@@ -374,6 +382,10 @@ static struct regulator_init_data vddarm __initdata = {
 	.driver_data = &vddarm_pdata,
 };
 
+static struct regulator_consumer_supply vddint_consumers[] __initdata = {
+	REGULATOR_SUPPLY("vddint", NULL),
+};
+
 static struct regulator_init_data vddint __initdata = {
 	.constraints = {
 		.name = "VDDINT",
@@ -382,6 +394,9 @@ static struct regulator_init_data vddint __initdata = {
 		.always_on = 1,
 		.valid_ops_mask = REGULATOR_CHANGE_VOLTAGE,
 	},
+	.num_consumer_supplies = ARRAY_SIZE(vddint_consumers),
+	.consumer_supplies = vddint_consumers,
+	.supply_regulator = "WALLVDD",
 };
 
 static struct regulator_init_data vddmem __initdata = {
@@ -502,7 +517,8 @@ static struct wm831x_touch_pdata touch_pdata __initdata = {
 static struct wm831x_pdata crag_pmic_pdata __initdata = {
 	.wm831x_num = 1,
 	.irq_base = BANFF_PMIC_IRQ_BASE,
-	.gpio_base = GPIO_BOARD_START + 8,
+	.gpio_base = BANFF_PMIC_GPIO_BASE,
+	.soft_shutdown = true,
 
 	.backup = &banff_backup_pdata,
 
@@ -607,6 +623,7 @@ static struct wm831x_pdata glenfarclas_pmic_pdata __initdata = {
 	.wm831x_num = 2,
 	.irq_base = GLENFARCLAS_PMIC_IRQ_BASE,
 	.gpio_base = GLENFARCLAS_PMIC_GPIO_BASE,
+	.soft_shutdown = true,
 
 	.gpio_defaults = {
 		/* GPIO1-3: IRQ inputs, rising edge triggered, CMOS */
@@ -624,6 +641,16 @@ static struct wm831x_pdata glenfarclas_pmic_pdata __initdata = {
 	.disable_touch = true,
 };
 
+static struct wm1250_ev1_pdata wm1250_ev1_pdata = {
+	.gpios = {
+		[WM1250_EV1_GPIO_CLK_ENA] = S3C64XX_GPN(12),
+		[WM1250_EV1_GPIO_CLK_SEL0] = S3C64XX_GPL(12),
+		[WM1250_EV1_GPIO_CLK_SEL1] = S3C64XX_GPL(13),
+		[WM1250_EV1_GPIO_OSR] = S3C64XX_GPL(14),
+		[WM1250_EV1_GPIO_MASTER] = S3C64XX_GPL(8),
+	},
+};
+
 static struct i2c_board_info i2c_devs1[] __initdata = {
 	{ I2C_BOARD_INFO("wm8311", 0x34),
 	  .irq = S3C_EINT(0),
@@ -633,7 +660,13 @@ static struct i2c_board_info i2c_devs1[] __initdata = {
 	{ I2C_BOARD_INFO("wlf-gf-module", 0x25) },
 	{ I2C_BOARD_INFO("wlf-gf-module", 0x26) },
 
-	{ I2C_BOARD_INFO("wm1250-ev1", 0x27) },
+	{ I2C_BOARD_INFO("wm1250-ev1", 0x27),
+	  .platform_data = &wm1250_ev1_pdata },
+};
+
+static struct s3c2410_platform_i2c i2c1_pdata = {
+	.frequency = 400000,
+	.bus_num = 1,
 };
 
 static void __init crag6410_map_io(void)
@@ -694,7 +727,7 @@ static void __init crag6410_machine_init(void)
 	s3c_sdhci2_set_platdata(&crag6410_hsmmc2_pdata);
 
 	s3c_i2c0_set_platdata(&i2c0_pdata);
-	s3c_i2c1_set_platdata(NULL);
+	s3c_i2c1_set_platdata(&i2c1_pdata);
 	s3c_fb_set_platdata(&crag6410_lcd_pdata);
 
 	i2c_register_board_info(0, i2c_devs0, ARRAY_SIZE(i2c_devs0));
diff --git a/arch/arm/mach-s3c64xx/pm.c b/arch/arm/mach-s3c64xx/pm.c
index 7d3e81b9dd06..055dac90e0e2 100644
--- a/arch/arm/mach-s3c64xx/pm.c
+++ b/arch/arm/mach-s3c64xx/pm.c
@@ -346,10 +346,23 @@ int __init s3c64xx_pm_init(void)
 
 static __init int s3c64xx_pm_initcall(void)
 {
+	u32 val;
+
 	pm_cpu_prep = s3c64xx_pm_prepare;
 	pm_cpu_sleep = s3c64xx_cpu_suspend;
 	pm_uart_udivslot = 1;
 
+	/*
+	 * Unconditionally disable power domains that contain only
+	 * blocks which have no mainline driver support.
+	 */
+	val = __raw_readl(S3C64XX_NORMAL_CFG);
+	val &= ~(S3C64XX_NORMALCFG_DOMAIN_G_ON |
+		 S3C64XX_NORMALCFG_DOMAIN_V_ON |
+		 S3C64XX_NORMALCFG_DOMAIN_I_ON |
+		 S3C64XX_NORMALCFG_DOMAIN_P_ON);
+	__raw_writel(val, S3C64XX_NORMAL_CFG);
+
 #ifdef CONFIG_S3C_PM_DEBUG_LED_SMDK
 	gpio_request(S3C64XX_GPN(12), "DEBUG_LED0");
 	gpio_request(S3C64XX_GPN(13), "DEBUG_LED1");
diff --git a/arch/arm/mach-s3c64xx/setup-sdhci.c b/arch/arm/mach-s3c64xx/setup-sdhci.c
deleted file mode 100644
index c75a71b21165..000000000000
--- a/arch/arm/mach-s3c64xx/setup-sdhci.c
+++ /dev/null
@@ -1,24 +0,0 @@
-/* linux/arch/arm/mach-s3c64xx/setup-sdhci.c
- *
- * Copyright 2008 Simtec Electronics
- * Copyright 2008 Simtec Electronics
- *	Ben Dooks <ben@simtec.co.uk>
- *	http://armlinux.simtec.co.uk/
- *
- * S3C6400/S3C6410 - Helper functions for settign up SDHCI device(s) (HSMMC)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
-*/
-
-#include <linux/types.h>
-
-/* clock sources for the mmc bus clock, order as for the ctrl2[5..4] */
-
-char *s3c64xx_hsmmc_clksrcs[4] = {
-	[0] = "hsmmc",
-	[1] = "hsmmc",
-	[2] = "mmc_bus",
-	/* [3] = "48m", - note not successfully used yet */
-};
diff --git a/arch/arm/mach-s3c64xx/setup-spi.c b/arch/arm/mach-s3c64xx/setup-spi.c
new file mode 100644
index 000000000000..d9592ad7a825
--- /dev/null
+++ b/arch/arm/mach-s3c64xx/setup-spi.c
@@ -0,0 +1,45 @@
+/* linux/arch/arm/mach-s3c64xx/setup-spi.c
+ *
+ * Copyright (C) 2011 Samsung Electronics Ltd.
+ *		http://www.samsung.com/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/gpio.h>
+#include <linux/platform_device.h>
+
+#include <plat/gpio-cfg.h>
+#include <plat/s3c64xx-spi.h>
+
+#ifdef CONFIG_S3C64XX_DEV_SPI0
+struct s3c64xx_spi_info s3c64xx_spi0_pdata __initdata = {
+	.fifo_lvl_mask	= 0x7f,
+	.rx_lvl_offset	= 13,
+	.tx_st_done	= 21,
+};
+
+int s3c64xx_spi0_cfg_gpio(struct platform_device *dev)
+{
+	s3c_gpio_cfgall_range(S3C64XX_GPC(0), 3,
+				S3C_GPIO_SFN(2), S3C_GPIO_PULL_UP);
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_S3C64XX_DEV_SPI1
+struct s3c64xx_spi_info s3c64xx_spi1_pdata __initdata = {
+	.fifo_lvl_mask	= 0x7f,
+	.rx_lvl_offset	= 13,
+	.tx_st_done	= 21,
+};
+
+int s3c64xx_spi1_cfg_gpio(struct platform_device *dev)
+{
+	s3c_gpio_cfgall_range(S3C64XX_GPC(4), 3,
+				S3C_GPIO_SFN(2), S3C_GPIO_PULL_UP);
+	return 0;
+}
+#endif
diff --git a/arch/arm/mach-s5p64x0/Kconfig b/arch/arm/mach-s5p64x0/Kconfig
index 18690c5f99e6..c87f6108eeb1 100644
--- a/arch/arm/mach-s5p64x0/Kconfig
+++ b/arch/arm/mach-s5p64x0/Kconfig
@@ -36,6 +36,16 @@ config S5P64X0_SETUP_I2C1
 	help
 	  Common setup code for i2c bus 1.
 
+config S5P64X0_SETUP_SPI
+	bool
+	help
+	  Common setup code for SPI GPIO configurations
+
+config S5P64X0_SETUP_SDHCI_GPIO
+	bool
+	help
+	  Common setup code for SDHCI gpio.
+
 # machine support
 
 config MACH_SMDK6440
@@ -45,13 +55,16 @@ config MACH_SMDK6440
 	select S3C_DEV_I2C1
 	select S3C_DEV_RTC
 	select S3C_DEV_WDT
-	select S3C64XX_DEV_SPI
+	select S3C_DEV_HSMMC
+	select S3C_DEV_HSMMC1
+	select S3C_DEV_HSMMC2
 	select SAMSUNG_DEV_ADC
 	select SAMSUNG_DEV_BACKLIGHT
 	select SAMSUNG_DEV_PWM
 	select SAMSUNG_DEV_TS
 	select S5P64X0_SETUP_FB_24BPP
 	select S5P64X0_SETUP_I2C1
+	select S5P64X0_SETUP_SDHCI_GPIO
 	help
 	  Machine support for the Samsung SMDK6440
 
@@ -62,14 +75,28 @@ config MACH_SMDK6450
 	select S3C_DEV_I2C1
 	select S3C_DEV_RTC
 	select S3C_DEV_WDT
-	select S3C64XX_DEV_SPI
+	select S3C_DEV_HSMMC
+	select S3C_DEV_HSMMC1
+	select S3C_DEV_HSMMC2
 	select SAMSUNG_DEV_ADC
 	select SAMSUNG_DEV_BACKLIGHT
 	select SAMSUNG_DEV_PWM
 	select SAMSUNG_DEV_TS
 	select S5P64X0_SETUP_FB_24BPP
 	select S5P64X0_SETUP_I2C1
+	select S5P64X0_SETUP_SDHCI_GPIO
 	help
 	  Machine support for the Samsung SMDK6450
 
+menu "Use 8-bit SDHCI bus width"
+
+config S5P64X0_SD_CH1_8BIT
+	bool "SDHCI Channel 1 (Slot 1)"
+	depends on MACH_SMDK6450 || MACH_SMDK6440
+	help
+	  Support SDHCI Channel 1 8-bit bus.
+	  If selected, Channel 2 is disabled.
+
+endmenu
+
 endif
diff --git a/arch/arm/mach-s5p64x0/Makefile b/arch/arm/mach-s5p64x0/Makefile
index d3f7409999f2..12bb951187a4 100644
--- a/arch/arm/mach-s5p64x0/Makefile
+++ b/arch/arm/mach-s5p64x0/Makefile
@@ -28,8 +28,9 @@ obj-$(CONFIG_MACH_SMDK6450)	+= mach-smdk6450.o
 # device support
 
 obj-y				+= dev-audio.o
-obj-$(CONFIG_S3C64XX_DEV_SPI)	+= dev-spi.o
 
 obj-y					+= setup-i2c0.o
 obj-$(CONFIG_S5P64X0_SETUP_I2C1)	+= setup-i2c1.o
 obj-$(CONFIG_S5P64X0_SETUP_FB_24BPP)	+= setup-fb-24bpp.o
+obj-$(CONFIG_S5P64X0_SETUP_SPI)		+= setup-spi.o
+obj-$(CONFIG_S5P64X0_SETUP_SDHCI_GPIO)	+= setup-sdhci-gpio.o
diff --git a/arch/arm/mach-s5p64x0/clock-s5p6440.c b/arch/arm/mach-s5p64x0/clock-s5p6440.c
index eb4ffe331e1a..ee1e8e7f5631 100644
--- a/arch/arm/mach-s5p64x0/clock-s5p6440.c
+++ b/arch/arm/mach-s5p64x0/clock-s5p6440.c
@@ -269,18 +269,6 @@ static struct clk init_clocks_off[] = {
 		.enable		= s5p64x0_pclk_ctrl,
 		.ctrlbit	= (1 << 31),
 	}, {
-		.name		= "sclk_spi_48",
-		.devname	= "s3c64xx-spi.0",
-		.parent		= &clk_48m,
-		.enable		= s5p64x0_sclk_ctrl,
-		.ctrlbit	= (1 << 22),
-	}, {
-		.name		= "sclk_spi_48",
-		.devname	= "s3c64xx-spi.1",
-		.parent		= &clk_48m,
-		.enable		= s5p64x0_sclk_ctrl,
-		.ctrlbit	= (1 << 23),
-	}, {
 		.name		= "mmc_48m",
 		.devname	= "s3c-sdhci.0",
 		.parent		= &clk_48m,
@@ -392,65 +380,6 @@ static struct clksrc_sources clkset_audio = {
 static struct clksrc_clk clksrcs[] = {
 	{
 		.clk	= {
-			.name		= "sclk_mmc",
-			.devname	= "s3c-sdhci.0",
-			.ctrlbit	= (1 << 24),
-			.enable		= s5p64x0_sclk_ctrl,
-		},
-		.sources = &clkset_group1,
-		.reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 18, .size = 2 },
-		.reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 0, .size = 4 },
-	}, {
-		.clk	= {
-			.name		= "sclk_mmc",
-			.devname	= "s3c-sdhci.1",
-			.ctrlbit	= (1 << 25),
-			.enable		= s5p64x0_sclk_ctrl,
-		},
-		.sources = &clkset_group1,
-		.reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 20, .size = 2 },
-		.reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 4, .size = 4 },
-	}, {
-		.clk	= {
-			.name		= "sclk_mmc",
-			.devname	= "s3c-sdhci.2",
-			.ctrlbit	= (1 << 26),
-			.enable		= s5p64x0_sclk_ctrl,
-		},
-		.sources = &clkset_group1,
-		.reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 22, .size = 2 },
-		.reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 8, .size = 4 },
-	}, {
-		.clk	= {
-			.name		= "uclk1",
-			.ctrlbit	= (1 << 5),
-			.enable		= s5p64x0_sclk_ctrl,
-		},
-		.sources = &clkset_uart,
-		.reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 13, .size = 1 },
-		.reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 16, .size = 4 },
-	}, {
-		.clk	= {
-			.name		= "sclk_spi",
-			.devname	= "s3c64xx-spi.0",
-			.ctrlbit	= (1 << 20),
-			.enable		= s5p64x0_sclk_ctrl,
-		},
-		.sources = &clkset_group1,
-		.reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 14, .size = 2 },
-		.reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 0, .size = 4 },
-	}, {
-		.clk	= {
-			.name		= "sclk_spi",
-			.devname	= "s3c64xx-spi.1",
-			.ctrlbit	= (1 << 21),
-			.enable		= s5p64x0_sclk_ctrl,
-		},
-		.sources = &clkset_group1,
-		.reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 16, .size = 2 },
-		.reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 4, .size = 4 },
-	}, {
-		.clk	= {
 			.name		= "sclk_post",
 			.ctrlbit	= (1 << 10),
 			.enable		= s5p64x0_sclk_ctrl,
@@ -488,6 +417,77 @@ static struct clksrc_clk clksrcs[] = {
 	},
 };
 
+static struct clksrc_clk clk_sclk_mmc0 = {
+	.clk	= {
+		.name		= "sclk_mmc",
+		.devname	= "s3c-sdhci.0",
+		.ctrlbit	= (1 << 24),
+		.enable		= s5p64x0_sclk_ctrl,
+	},
+	.sources = &clkset_group1,
+	.reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 18, .size = 2 },
+	.reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 0, .size = 4 },
+};
+
+static struct clksrc_clk clk_sclk_mmc1 = {
+	.clk	= {
+		.name		= "sclk_mmc",
+		.devname	= "s3c-sdhci.1",
+		.ctrlbit	= (1 << 25),
+		.enable		= s5p64x0_sclk_ctrl,
+	},
+	.sources = &clkset_group1,
+	.reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 20, .size = 2 },
+	.reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 4, .size = 4 },
+};
+
+static struct clksrc_clk clk_sclk_mmc2 = {
+	.clk	= {
+		.name		= "sclk_mmc",
+		.devname	= "s3c-sdhci.2",
+		.ctrlbit	= (1 << 26),
+		.enable		= s5p64x0_sclk_ctrl,
+	},
+	.sources = &clkset_group1,
+	.reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 22, .size = 2 },
+	.reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 8, .size = 4 },
+};
+
+static struct clksrc_clk clk_sclk_uclk = {
+	.clk	= {
+		.name		= "uclk1",
+		.ctrlbit	= (1 << 5),
+		.enable		= s5p64x0_sclk_ctrl,
+	},
+	.sources = &clkset_uart,
+	.reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 13, .size = 1 },
+	.reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 16, .size = 4 },
+};
+
+static struct clksrc_clk clk_sclk_spi0 = {
+	.clk	= {
+		.name		= "sclk_spi",
+		.devname	= "s3c64xx-spi.0",
+		.ctrlbit	= (1 << 20),
+		.enable		= s5p64x0_sclk_ctrl,
+	},
+	.sources = &clkset_group1,
+	.reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 14, .size = 2 },
+	.reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 0, .size = 4 },
+};
+
+static struct clksrc_clk clk_sclk_spi1 = {
+	.clk	= {
+		.name		= "sclk_spi",
+		.devname	= "s3c64xx-spi.1",
+		.ctrlbit	= (1 << 21),
+		.enable		= s5p64x0_sclk_ctrl,
+	},
+	.sources = &clkset_group1,
+	.reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 16, .size = 2 },
+	.reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 4, .size = 4 },
+};
+
 /* Clock initialization code */
 static struct clksrc_clk *sysclks[] = {
 	&clk_mout_apll,
@@ -506,6 +506,26 @@ static struct clk dummy_apb_pclk = {
 	.id		= -1,
 };
 
+static struct clksrc_clk *clksrc_cdev[] = {
+	&clk_sclk_uclk,
+	&clk_sclk_spi0,
+	&clk_sclk_spi1,
+	&clk_sclk_mmc0,
+	&clk_sclk_mmc1,
+	&clk_sclk_mmc2
+};
+
+static struct clk_lookup s5p6440_clk_lookup[] = {
+	CLKDEV_INIT(NULL, "clk_uart_baud2", &clk_pclk_low.clk),
+	CLKDEV_INIT(NULL, "clk_uart_baud3", &clk_sclk_uclk.clk),
+	CLKDEV_INIT(NULL, "spi_busclk0", &clk_p),
+	CLKDEV_INIT("s3c64xx-spi.0", "spi_busclk1", &clk_sclk_spi0.clk),
+	CLKDEV_INIT("s3c64xx-spi.1", "spi_busclk1", &clk_sclk_spi1.clk),
+	CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.2", &clk_sclk_mmc0.clk),
+	CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.2", &clk_sclk_mmc1.clk),
+	CLKDEV_INIT("s3c-sdhci.2", "mmc_busclk.2", &clk_sclk_mmc2.clk),
+};
+
 void __init_or_cpufreq s5p6440_setup_clocks(void)
 {
 	struct clk *xtal_clk;
@@ -584,9 +604,12 @@ void __init s5p6440_register_clocks(void)
 
 	s3c_register_clksrc(clksrcs, ARRAY_SIZE(clksrcs));
 	s3c_register_clocks(init_clocks, ARRAY_SIZE(init_clocks));
+	for (ptr = 0; ptr < ARRAY_SIZE(clksrc_cdev); ptr++)
+		s3c_register_clksrc(clksrc_cdev[ptr], 1);
 
 	s3c_register_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
 	s3c_disable_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
+	clkdev_add_table(s5p6440_clk_lookup, ARRAY_SIZE(s5p6440_clk_lookup));
 
 	s3c24xx_register_clock(&dummy_apb_pclk);
 
diff --git a/arch/arm/mach-s5p64x0/clock-s5p6450.c b/arch/arm/mach-s5p64x0/clock-s5p6450.c
index bb7ee912090b..dae6a13f43bb 100644
--- a/arch/arm/mach-s5p64x0/clock-s5p6450.c
+++ b/arch/arm/mach-s5p64x0/clock-s5p6450.c
@@ -414,65 +414,6 @@ static struct clksrc_clk clk_sclk_audio0 = {
 static struct clksrc_clk clksrcs[] = {
 	{
 		.clk	= {
-			.name		= "sclk_mmc",
-			.devname	= "s3c-sdhci.0",
-			.ctrlbit	= (1 << 24),
-			.enable		= s5p64x0_sclk_ctrl,
-		},
-		.sources = &clkset_group2,
-		.reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 18, .size = 2 },
-		.reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 0, .size = 4 },
-	}, {
-		.clk	= {
-			.name		= "sclk_mmc",
-			.devname	= "s3c-sdhci.1",
-			.ctrlbit	= (1 << 25),
-			.enable		= s5p64x0_sclk_ctrl,
-		},
-		.sources = &clkset_group2,
-		.reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 20, .size = 2 },
-		.reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 4, .size = 4 },
-	}, {
-		.clk	= {
-			.name		= "sclk_mmc",
-			.devname	= "s3c-sdhci.2",
-			.ctrlbit	= (1 << 26),
-			.enable		= s5p64x0_sclk_ctrl,
-		},
-		.sources = &clkset_group2,
-		.reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 22, .size = 2 },
-		.reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 8, .size = 4 },
-	}, {
-		.clk	= {
-			.name		= "uclk1",
-			.ctrlbit	= (1 << 5),
-			.enable		= s5p64x0_sclk_ctrl,
-		},
-		.sources = &clkset_uart,
-		.reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 13, .size = 1 },
-		.reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 16, .size = 4 },
-	}, {
-		.clk	= {
-			.name		= "sclk_spi",
-			.devname	= "s3c64xx-spi.0",
-			.ctrlbit	= (1 << 20),
-			.enable		= s5p64x0_sclk_ctrl,
-		},
-		.sources = &clkset_group2,
-		.reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 14, .size = 2 },
-		.reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 0, .size = 4 },
-	}, {
-		.clk	= {
-			.name		= "sclk_spi",
-			.devname	= "s3c64xx-spi.1",
-			.ctrlbit	= (1 << 21),
-			.enable		= s5p64x0_sclk_ctrl,
-		},
-		.sources = &clkset_group2,
-		.reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 16, .size = 2 },
-		.reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 4, .size = 4 },
-	}, {
-		.clk	= {
 			.name		= "sclk_fimc",
 			.ctrlbit	= (1 << 10),
 			.enable		= s5p64x0_sclk_ctrl,
@@ -537,6 +478,97 @@ static struct clksrc_clk clksrcs[] = {
 	},
 };
 
+static struct clksrc_clk clk_sclk_mmc0 = {
+	.clk	= {
+		.name		= "sclk_mmc",
+		.devname	= "s3c-sdhci.0",
+		.ctrlbit	= (1 << 24),
+		.enable		= s5p64x0_sclk_ctrl,
+	},
+	.sources = &clkset_group2,
+	.reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 18, .size = 2 },
+	.reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 0, .size = 4 },
+};
+
+static struct clksrc_clk clk_sclk_mmc1 = {
+	.clk	= {
+		.name		= "sclk_mmc",
+		.devname	= "s3c-sdhci.1",
+		.ctrlbit	= (1 << 25),
+		.enable		= s5p64x0_sclk_ctrl,
+	},
+	.sources = &clkset_group2,
+	.reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 20, .size = 2 },
+	.reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 4, .size = 4 },
+};
+
+static struct clksrc_clk clk_sclk_mmc2 = {
+	.clk	= {
+		.name		= "sclk_mmc",
+		.devname	= "s3c-sdhci.2",
+		.ctrlbit	= (1 << 26),
+		.enable		= s5p64x0_sclk_ctrl,
+	},
+	.sources = &clkset_group2,
+	.reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 22, .size = 2 },
+	.reg_div = { .reg = S5P64X0_CLK_DIV1, .shift = 8, .size = 4 },
+};
+
+static struct clksrc_clk clk_sclk_uclk = {
+	.clk	= {
+		.name		= "uclk1",
+		.ctrlbit	= (1 << 5),
+		.enable		= s5p64x0_sclk_ctrl,
+	},
+	.sources = &clkset_uart,
+	.reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 13, .size = 1 },
+	.reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 16, .size = 4 },
+};
+
+static struct clksrc_clk clk_sclk_spi0 = {
+	.clk	= {
+		.name		= "sclk_spi",
+		.devname	= "s3c64xx-spi.0",
+		.ctrlbit	= (1 << 20),
+		.enable		= s5p64x0_sclk_ctrl,
+	},
+	.sources = &clkset_group2,
+	.reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 14, .size = 2 },
+	.reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 0, .size = 4 },
+};
+
+static struct clksrc_clk clk_sclk_spi1 = {
+	.clk	= {
+		.name		= "sclk_spi",
+		.devname	= "s3c64xx-spi.1",
+		.ctrlbit	= (1 << 21),
+		.enable		= s5p64x0_sclk_ctrl,
+	},
+	.sources = &clkset_group2,
+	.reg_src = { .reg = S5P64X0_CLK_SRC0, .shift = 16, .size = 2 },
+	.reg_div = { .reg = S5P64X0_CLK_DIV2, .shift = 4, .size = 4 },
+};
+
+static struct clksrc_clk *clksrc_cdev[] = {
+	&clk_sclk_uclk,
+	&clk_sclk_spi0,
+	&clk_sclk_spi1,
+	&clk_sclk_mmc0,
+	&clk_sclk_mmc1,
+	&clk_sclk_mmc2,
+};
+
+static struct clk_lookup s5p6450_clk_lookup[] = {
+	CLKDEV_INIT(NULL, "clk_uart_baud2", &clk_pclk_low.clk),
+	CLKDEV_INIT(NULL, "clk_uart_baud3", &clk_sclk_uclk.clk),
+	CLKDEV_INIT(NULL, "spi_busclk0", &clk_p),
+	CLKDEV_INIT("s3c64xx-spi.0", "spi_busclk1", &clk_sclk_spi0.clk),
+	CLKDEV_INIT("s3c64xx-spi.1", "spi_busclk1", &clk_sclk_spi1.clk),
+	CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.2", &clk_sclk_mmc0.clk),
+	CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.2", &clk_sclk_mmc1.clk),
+	CLKDEV_INIT("s3c-sdhci.2", "mmc_busclk.2", &clk_sclk_mmc2.clk),
+};
+
 /* Clock initialization code */
 static struct clksrc_clk *sysclks[] = {
 	&clk_mout_apll,
@@ -635,9 +667,12 @@ void __init s5p6450_register_clocks(void)
 
 	s3c_register_clksrc(clksrcs, ARRAY_SIZE(clksrcs));
 	s3c_register_clocks(init_clocks, ARRAY_SIZE(init_clocks));
+	for (ptr = 0; ptr < ARRAY_SIZE(clksrc_cdev); ptr++)
+		s3c_register_clksrc(clksrc_cdev[ptr], 1);
 
 	s3c_register_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
 	s3c_disable_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
+	clkdev_add_table(s5p6450_clk_lookup, ARRAY_SIZE(s5p6450_clk_lookup));
 
 	s3c24xx_register_clock(&dummy_apb_pclk);
 
diff --git a/arch/arm/mach-s5p64x0/common.c b/arch/arm/mach-s5p64x0/common.c
index 28d0b918cd4b..52b89a376447 100644
--- a/arch/arm/mach-s5p64x0/common.c
+++ b/arch/arm/mach-s5p64x0/common.c
@@ -40,6 +40,7 @@
 #include <plat/clock.h>
 #include <plat/devs.h>
 #include <plat/pm.h>
+#include <plat/sdhci.h>
 #include <plat/adc-core.h>
 #include <plat/fb-core.h>
 #include <plat/gpio-cfg.h>
@@ -181,6 +182,10 @@ void __init s5p6440_map_io(void)
 	s3c_adc_setname("s3c64xx-adc");
 	s3c_fb_setname("s5p64x0-fb");
 
+	s5p64x0_default_sdhci0();
+	s5p64x0_default_sdhci1();
+	s5p6440_default_sdhci2();
+
 	iotable_init(s5p6440_iodesc, ARRAY_SIZE(s5p6440_iodesc));
 	init_consistent_dma_size(SZ_8M);
 }
@@ -191,6 +196,10 @@ void __init s5p6450_map_io(void)
 	s3c_adc_setname("s3c64xx-adc");
 	s3c_fb_setname("s5p64x0-fb");
 
+	s5p64x0_default_sdhci0();
+	s5p64x0_default_sdhci1();
+	s5p6450_default_sdhci2();
+
 	iotable_init(s5p6450_iodesc, ARRAY_SIZE(s5p6450_iodesc));
 	init_consistent_dma_size(SZ_8M);
 }
@@ -282,36 +291,7 @@ int __init s5p64x0_init(void)
 	return device_register(&s5p64x0_dev);
 }
 
-static struct s3c24xx_uart_clksrc s5p64x0_serial_clocks[] = {
-	[0] = {
-		.name		= "pclk_low",
-		.divisor	= 1,
-		.min_baud	= 0,
-		.max_baud	= 0,
-	},
-	[1] = {
-		.name		= "uclk1",
-		.divisor	= 1,
-		.min_baud	= 0,
-		.max_baud	= 0,
-	},
-};
-
 /* uart registration process */
-
-void __init s5p64x0_common_init_uarts(struct s3c2410_uartcfg *cfg, int no)
-{
-	struct s3c2410_uartcfg *tcfg = cfg;
-	u32 ucnt;
-
-	for (ucnt = 0; ucnt < no; ucnt++, tcfg++) {
-		if (!tcfg->clocks) {
-			tcfg->clocks = s5p64x0_serial_clocks;
-			tcfg->clocks_size = ARRAY_SIZE(s5p64x0_serial_clocks);
-		}
-	}
-}
-
 void __init s5p6440_init_uarts(struct s3c2410_uartcfg *cfg, int no)
 {
 	int uart;
@@ -321,13 +301,11 @@ void __init s5p6440_init_uarts(struct s3c2410_uartcfg *cfg, int no)
 		s5p_uart_resources[uart].resources->end = S5P6440_PA_UART(uart) + S5P_SZ_UART;
 	}
 
-	s5p64x0_common_init_uarts(cfg, no);
 	s3c24xx_init_uartdevs("s3c6400-uart", s5p_uart_resources, cfg, no);
 }
 
 void __init s5p6450_init_uarts(struct s3c2410_uartcfg *cfg, int no)
 {
-	s5p64x0_common_init_uarts(cfg, no);
 	s3c24xx_init_uartdevs("s3c6400-uart", s5p_uart_resources, cfg, no);
 }
 
diff --git a/arch/arm/mach-s5p64x0/dev-spi.c b/arch/arm/mach-s5p64x0/dev-spi.c
deleted file mode 100644
index 1fd9c79c7dbc..000000000000
--- a/arch/arm/mach-s5p64x0/dev-spi.c
+++ /dev/null
@@ -1,224 +0,0 @@
-/* linux/arch/arm/mach-s5p64x0/dev-spi.c
- *
- * Copyright (c) 2010 Samsung Electronics Co., Ltd.
- *		http://www.samsung.com
- *
- * Copyright (C) 2010 Samsung Electronics Co. Ltd.
- *	Jaswinder Singh <jassi.brar@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
-*/
-
-#include <linux/platform_device.h>
-#include <linux/dma-mapping.h>
-#include <linux/gpio.h>
-
-#include <mach/dma.h>
-#include <mach/map.h>
-#include <mach/irqs.h>
-#include <mach/regs-clock.h>
-#include <mach/spi-clocks.h>
-
-#include <plat/cpu.h>
-#include <plat/s3c64xx-spi.h>
-#include <plat/gpio-cfg.h>
-
-static char *s5p64x0_spi_src_clks[] = {
-	[S5P64X0_SPI_SRCCLK_PCLK] = "pclk",
-	[S5P64X0_SPI_SRCCLK_SCLK] = "sclk_spi",
-};
-
-/* SPI Controller platform_devices */
-
-/* Since we emulate multi-cs capability, we do not touch the CS.
- * The emulated CS is toggled by board specific mechanism, as it can
- * be either some immediate GPIO or some signal out of some other
- * chip in between ... or some yet another way.
- * We simply do not assume anything about CS.
- */
-static int s5p6440_spi_cfg_gpio(struct platform_device *pdev)
-{
-	unsigned int base;
-
-	switch (pdev->id) {
-	case 0:
-		base = S5P6440_GPC(0);
-		break;
-
-	case 1:
-		base = S5P6440_GPC(4);
-		break;
-
-	default:
-		dev_err(&pdev->dev, "Invalid SPI Controller number!");
-		return -EINVAL;
-	}
-
-	s3c_gpio_cfgall_range(base, 3,
-			      S3C_GPIO_SFN(2), S3C_GPIO_PULL_UP);
-
-	return 0;
-}
-
-static int s5p6450_spi_cfg_gpio(struct platform_device *pdev)
-{
-	unsigned int base;
-
-	switch (pdev->id) {
-	case 0:
-		base = S5P6450_GPC(0);
-		break;
-
-	case 1:
-		base = S5P6450_GPC(4);
-		break;
-
-	default:
-		dev_err(&pdev->dev, "Invalid SPI Controller number!");
-		return -EINVAL;
-	}
-
-	s3c_gpio_cfgall_range(base, 3,
-			      S3C_GPIO_SFN(2), S3C_GPIO_PULL_UP);
-
-	return 0;
-}
-
-static struct resource s5p64x0_spi0_resource[] = {
-	[0] = {
-		.start	= S5P64X0_PA_SPI0,
-		.end	= S5P64X0_PA_SPI0 + 0x100 - 1,
-		.flags	= IORESOURCE_MEM,
-	},
-	[1] = {
-		.start	= DMACH_SPI0_TX,
-		.end	= DMACH_SPI0_TX,
-		.flags	= IORESOURCE_DMA,
-	},
-	[2] = {
-		.start	= DMACH_SPI0_RX,
-		.end	= DMACH_SPI0_RX,
-		.flags	= IORESOURCE_DMA,
-	},
-	[3] = {
-		.start	= IRQ_SPI0,
-		.end	= IRQ_SPI0,
-		.flags	= IORESOURCE_IRQ,
-	},
-};
-
-static struct s3c64xx_spi_info s5p6440_spi0_pdata = {
-	.cfg_gpio	= s5p6440_spi_cfg_gpio,
-	.fifo_lvl_mask	= 0x1ff,
-	.rx_lvl_offset	= 15,
-	.tx_st_done	= 25,
-};
-
-static struct s3c64xx_spi_info s5p6450_spi0_pdata = {
-	.cfg_gpio	= s5p6450_spi_cfg_gpio,
-	.fifo_lvl_mask	= 0x1ff,
-	.rx_lvl_offset	= 15,
-	.tx_st_done	= 25,
-};
-
-static u64 spi_dmamask = DMA_BIT_MASK(32);
-
-struct platform_device s5p64x0_device_spi0 = {
-	.name		= "s3c64xx-spi",
-	.id		= 0,
-	.num_resources	= ARRAY_SIZE(s5p64x0_spi0_resource),
-	.resource	= s5p64x0_spi0_resource,
-	.dev = {
-		.dma_mask		= &spi_dmamask,
-		.coherent_dma_mask	= DMA_BIT_MASK(32),
-	},
-};
-
-static struct resource s5p64x0_spi1_resource[] = {
-	[0] = {
-		.start	= S5P64X0_PA_SPI1,
-		.end	= S5P64X0_PA_SPI1 + 0x100 - 1,
-		.flags	= IORESOURCE_MEM,
-	},
-	[1] = {
-		.start	= DMACH_SPI1_TX,
-		.end	= DMACH_SPI1_TX,
-		.flags	= IORESOURCE_DMA,
-	},
-	[2] = {
-		.start	= DMACH_SPI1_RX,
-		.end	= DMACH_SPI1_RX,
-		.flags	= IORESOURCE_DMA,
-	},
-	[3] = {
-		.start	= IRQ_SPI1,
-		.end	= IRQ_SPI1,
-		.flags	= IORESOURCE_IRQ,
-	},
-};
-
-static struct s3c64xx_spi_info s5p6440_spi1_pdata = {
-	.cfg_gpio	= s5p6440_spi_cfg_gpio,
-	.fifo_lvl_mask	= 0x7f,
-	.rx_lvl_offset	= 15,
-	.tx_st_done	= 25,
-};
-
-static struct s3c64xx_spi_info s5p6450_spi1_pdata = {
-	.cfg_gpio	= s5p6450_spi_cfg_gpio,
-	.fifo_lvl_mask	= 0x7f,
-	.rx_lvl_offset	= 15,
-	.tx_st_done	= 25,
-};
-
-struct platform_device s5p64x0_device_spi1 = {
-	.name		= "s3c64xx-spi",
-	.id		= 1,
-	.num_resources	= ARRAY_SIZE(s5p64x0_spi1_resource),
-	.resource	= s5p64x0_spi1_resource,
-	.dev = {
-		.dma_mask		= &spi_dmamask,
-		.coherent_dma_mask	= DMA_BIT_MASK(32),
-	},
-};
-
-void __init s5p64x0_spi_set_info(int cntrlr, int src_clk_nr, int num_cs)
-{
-	struct s3c64xx_spi_info *pd;
-
-	/* Reject invalid configuration */
-	if (!num_cs || src_clk_nr < 0
-			|| src_clk_nr > S5P64X0_SPI_SRCCLK_SCLK) {
-		printk(KERN_ERR "%s: Invalid SPI configuration\n", __func__);
-		return;
-	}
-
-	switch (cntrlr) {
-	case 0:
-		if (soc_is_s5p6450())
-			pd = &s5p6450_spi0_pdata;
-		else
-			pd = &s5p6440_spi0_pdata;
-
-		s5p64x0_device_spi0.dev.platform_data = pd;
-		break;
-	case 1:
-		if (soc_is_s5p6450())
-			pd = &s5p6450_spi1_pdata;
-		else
-			pd = &s5p6440_spi1_pdata;
-
-		s5p64x0_device_spi1.dev.platform_data = pd;
-		break;
-	default:
-		printk(KERN_ERR "%s: Invalid SPI controller(%d)\n",
-							__func__, cntrlr);
-		return;
-	}
-
-	pd->num_cs = num_cs;
-	pd->src_clk_nr = src_clk_nr;
-	pd->src_clk_name = s5p64x0_spi_src_clks[src_clk_nr];
-}
diff --git a/arch/arm/mach-s5p64x0/dma.c b/arch/arm/mach-s5p64x0/dma.c
index 442dd4ad12da..f820c0744405 100644
--- a/arch/arm/mach-s5p64x0/dma.c
+++ b/arch/arm/mach-s5p64x0/dma.c
@@ -38,176 +38,74 @@
 
 static u64 dma_dmamask = DMA_BIT_MASK(32);
 
-struct dma_pl330_peri s5p6440_pdma_peri[22] = {
-	{
-		.peri_id = (u8)DMACH_UART0_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_UART0_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_UART1_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_UART1_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_UART2_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_UART2_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_UART3_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_UART3_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = DMACH_MAX,
-	}, {
-		.peri_id = DMACH_MAX,
-	}, {
-		.peri_id = (u8)DMACH_PCM0_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_PCM0_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_I2S0_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_I2S0_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_SPI0_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_SPI0_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_MAX,
-	}, {
-		.peri_id = (u8)DMACH_MAX,
-	}, {
-		.peri_id = (u8)DMACH_MAX,
-	}, {
-		.peri_id = (u8)DMACH_MAX,
-	}, {
-		.peri_id = (u8)DMACH_SPI1_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_SPI1_RX,
-		.rqtype = DEVTOMEM,
-	},
+u8 s5p6440_pdma_peri[] = {
+	DMACH_UART0_RX,
+	DMACH_UART0_TX,
+	DMACH_UART1_RX,
+	DMACH_UART1_TX,
+	DMACH_UART2_RX,
+	DMACH_UART2_TX,
+	DMACH_UART3_RX,
+	DMACH_UART3_TX,
+	DMACH_MAX,
+	DMACH_MAX,
+	DMACH_PCM0_TX,
+	DMACH_PCM0_RX,
+	DMACH_I2S0_TX,
+	DMACH_I2S0_RX,
+	DMACH_SPI0_TX,
+	DMACH_SPI0_RX,
+	DMACH_MAX,
+	DMACH_MAX,
+	DMACH_MAX,
+	DMACH_MAX,
+	DMACH_SPI1_TX,
+	DMACH_SPI1_RX,
 };
 
 struct dma_pl330_platdata s5p6440_pdma_pdata = {
 	.nr_valid_peri = ARRAY_SIZE(s5p6440_pdma_peri),
-	.peri = s5p6440_pdma_peri,
+	.peri_id = s5p6440_pdma_peri,
 };
 
-struct dma_pl330_peri s5p6450_pdma_peri[32] = {
-	{
-		.peri_id = (u8)DMACH_UART0_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_UART0_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_UART1_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_UART1_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_UART2_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_UART2_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_UART3_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_UART3_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_UART4_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_UART4_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_PCM0_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_PCM0_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_I2S0_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_I2S0_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_SPI0_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_SPI0_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_PCM1_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_PCM1_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_PCM2_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_PCM2_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_SPI1_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_SPI1_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_USI_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_USI_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_MAX,
-	}, {
-		.peri_id = (u8)DMACH_I2S1_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_I2S1_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_I2S2_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_I2S2_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_PWM,
-	}, {
-		.peri_id = (u8)DMACH_UART5_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_UART5_TX,
-		.rqtype = MEMTODEV,
-	},
+u8 s5p6450_pdma_peri[] = {
+	DMACH_UART0_RX,
+	DMACH_UART0_TX,
+	DMACH_UART1_RX,
+	DMACH_UART1_TX,
+	DMACH_UART2_RX,
+	DMACH_UART2_TX,
+	DMACH_UART3_RX,
+	DMACH_UART3_TX,
+	DMACH_UART4_RX,
+	DMACH_UART4_TX,
+	DMACH_PCM0_TX,
+	DMACH_PCM0_RX,
+	DMACH_I2S0_TX,
+	DMACH_I2S0_RX,
+	DMACH_SPI0_TX,
+	DMACH_SPI0_RX,
+	DMACH_PCM1_TX,
+	DMACH_PCM1_RX,
+	DMACH_PCM2_TX,
+	DMACH_PCM2_RX,
+	DMACH_SPI1_TX,
+	DMACH_SPI1_RX,
+	DMACH_USI_TX,
+	DMACH_USI_RX,
+	DMACH_MAX,
+	DMACH_I2S1_TX,
+	DMACH_I2S1_RX,
+	DMACH_I2S2_TX,
+	DMACH_I2S2_RX,
+	DMACH_PWM,
+	DMACH_UART5_RX,
+	DMACH_UART5_TX,
 };
 
 struct dma_pl330_platdata s5p6450_pdma_pdata = {
 	.nr_valid_peri = ARRAY_SIZE(s5p6450_pdma_peri),
-	.peri = s5p6450_pdma_peri,
+	.peri_id = s5p6450_pdma_peri,
 };
 
 struct amba_device s5p64x0_device_pdma = {
@@ -227,10 +125,15 @@ struct amba_device s5p64x0_device_pdma = {
 
 static int __init s5p64x0_dma_init(void)
 {
-	if (soc_is_s5p6450())
+	if (soc_is_s5p6450()) {
+		dma_cap_set(DMA_SLAVE, s5p6450_pdma_pdata.cap_mask);
+		dma_cap_set(DMA_CYCLIC, s5p6450_pdma_pdata.cap_mask);
 		s5p64x0_device_pdma.dev.platform_data = &s5p6450_pdma_pdata;
-	else
+	} else {
+		dma_cap_set(DMA_SLAVE, s5p6440_pdma_pdata.cap_mask);
+		dma_cap_set(DMA_CYCLIC, s5p6440_pdma_pdata.cap_mask);
 		s5p64x0_device_pdma.dev.platform_data = &s5p6440_pdma_pdata;
+	}
 
 	amba_device_register(&s5p64x0_device_pdma, &iomem_resource);
 
diff --git a/arch/arm/mach-s5p64x0/include/mach/irqs.h b/arch/arm/mach-s5p64x0/include/mach/irqs.h
index 53982db9d259..5b845e849b30 100644
--- a/arch/arm/mach-s5p64x0/include/mach/irqs.h
+++ b/arch/arm/mach-s5p64x0/include/mach/irqs.h
@@ -141,6 +141,8 @@
 
 #define IRQ_EINT_GROUP(grp, x)	(IRQ_EINT_GROUP##grp##_BASE + (x))
 
+#define IRQ_TIMER_BASE		(11)
+
 /* Set the default NR_IRQS */
 
 #define NR_IRQS			(IRQ_EINT_GROUP8_BASE + IRQ_EINT_GROUP8_NR + 1)
diff --git a/arch/arm/mach-s5p64x0/include/mach/map.h b/arch/arm/mach-s5p64x0/include/mach/map.h
index 4d3ac8a3709d..0c0175dbfa34 100644
--- a/arch/arm/mach-s5p64x0/include/mach/map.h
+++ b/arch/arm/mach-s5p64x0/include/mach/map.h
@@ -67,6 +67,8 @@
 #define S3C_PA_RTC		S5P64X0_PA_RTC
 #define S3C_PA_WDT		S5P64X0_PA_WDT
 #define S3C_PA_FB		S5P64X0_PA_FB
+#define S3C_PA_SPI0		S5P64X0_PA_SPI0
+#define S3C_PA_SPI1		S5P64X0_PA_SPI1
 
 #define S5P_PA_CHIPID		S5P64X0_PA_CHIPID
 #define S5P_PA_SROMC		S5P64X0_PA_SROMC
diff --git a/arch/arm/mach-s5p64x0/mach-smdk6440.c b/arch/arm/mach-s5p64x0/mach-smdk6440.c
index 34d98a1dae57..a40e325d62c8 100644
--- a/arch/arm/mach-s5p64x0/mach-smdk6440.c
+++ b/arch/arm/mach-s5p64x0/mach-smdk6440.c
@@ -24,6 +24,7 @@
 #include <linux/gpio.h>
 #include <linux/pwm_backlight.h>
 #include <linux/fb.h>
+#include <linux/mmc/host.h>
 
 #include <video/platform_lcd.h>
 
@@ -52,6 +53,7 @@
 #include <plat/backlight.h>
 #include <plat/fb.h>
 #include <plat/regs-fb.h>
+#include <plat/sdhci.h>
 
 #include "common.h"
 
@@ -163,6 +165,25 @@ static struct platform_device *smdk6440_devices[] __initdata = {
 	&s5p6440_device_iis,
 	&s3c_device_fb,
 	&smdk6440_lcd_lte480wv,
+	&s3c_device_hsmmc0,
+	&s3c_device_hsmmc1,
+	&s3c_device_hsmmc2,
+};
+
+static struct s3c_sdhci_platdata smdk6440_hsmmc0_pdata __initdata = {
+	.cd_type	= S3C_SDHCI_CD_NONE,
+};
+
+static struct s3c_sdhci_platdata smdk6440_hsmmc1_pdata __initdata = {
+	.cd_type	= S3C_SDHCI_CD_INTERNAL,
+#if defined(CONFIG_S5P64X0_SD_CH1_8BIT)
+	.max_width	= 8,
+	.host_caps	= MMC_CAP_8_BIT_DATA,
+#endif
+};
+
+static struct s3c_sdhci_platdata smdk6440_hsmmc2_pdata __initdata = {
+	.cd_type	= S3C_SDHCI_CD_NONE,
 };
 
 static struct s3c2410_platform_i2c s5p6440_i2c0_data __initdata = {
@@ -236,6 +257,10 @@ static void __init smdk6440_machine_init(void)
 	s5p6440_set_lcd_interface();
 	s3c_fb_set_platdata(&smdk6440_lcd_pdata);
 
+	s3c_sdhci0_set_platdata(&smdk6440_hsmmc0_pdata);
+	s3c_sdhci1_set_platdata(&smdk6440_hsmmc1_pdata);
+	s3c_sdhci2_set_platdata(&smdk6440_hsmmc2_pdata);
+
 	platform_add_devices(smdk6440_devices, ARRAY_SIZE(smdk6440_devices));
 }
 
diff --git a/arch/arm/mach-s5p64x0/mach-smdk6450.c b/arch/arm/mach-s5p64x0/mach-smdk6450.c
index 135cf5d84737..efb69e2f2afe 100644
--- a/arch/arm/mach-s5p64x0/mach-smdk6450.c
+++ b/arch/arm/mach-s5p64x0/mach-smdk6450.c
@@ -24,6 +24,7 @@
 #include <linux/gpio.h>
 #include <linux/pwm_backlight.h>
 #include <linux/fb.h>
+#include <linux/mmc/host.h>
 
 #include <video/platform_lcd.h>
 
@@ -52,6 +53,7 @@
 #include <plat/backlight.h>
 #include <plat/fb.h>
 #include <plat/regs-fb.h>
+#include <plat/sdhci.h>
 
 #include "common.h"
 
@@ -181,10 +183,28 @@ static struct platform_device *smdk6450_devices[] __initdata = {
 	&s5p6450_device_iis0,
 	&s3c_device_fb,
 	&smdk6450_lcd_lte480wv,
-
+	&s3c_device_hsmmc0,
+	&s3c_device_hsmmc1,
+	&s3c_device_hsmmc2,
 	/* s5p6450_device_spi0 will be added */
 };
 
+static struct s3c_sdhci_platdata smdk6450_hsmmc0_pdata __initdata = {
+	.cd_type	= S3C_SDHCI_CD_NONE,
+};
+
+static struct s3c_sdhci_platdata smdk6450_hsmmc1_pdata __initdata = {
+	.cd_type	= S3C_SDHCI_CD_NONE,
+#if defined(CONFIG_S5P64X0_SD_CH1_8BIT)
+	.max_width	= 8,
+	.host_caps	= MMC_CAP_8_BIT_DATA,
+#endif
+};
+
+static struct s3c_sdhci_platdata smdk6450_hsmmc2_pdata __initdata = {
+	.cd_type	= S3C_SDHCI_CD_NONE,
+};
+
 static struct s3c2410_platform_i2c s5p6450_i2c0_data __initdata = {
 	.flags		= 0,
 	.slave_addr	= 0x10,
@@ -256,6 +276,10 @@ static void __init smdk6450_machine_init(void)
 	s5p6450_set_lcd_interface();
 	s3c_fb_set_platdata(&smdk6450_lcd_pdata);
 
+	s3c_sdhci0_set_platdata(&smdk6450_hsmmc0_pdata);
+	s3c_sdhci1_set_platdata(&smdk6450_hsmmc1_pdata);
+	s3c_sdhci2_set_platdata(&smdk6450_hsmmc2_pdata);
+
 	platform_add_devices(smdk6450_devices, ARRAY_SIZE(smdk6450_devices));
 }
 
diff --git a/arch/arm/mach-s5p64x0/setup-sdhci-gpio.c b/arch/arm/mach-s5p64x0/setup-sdhci-gpio.c
new file mode 100644
index 000000000000..8410af0d12bf
--- /dev/null
+++ b/arch/arm/mach-s5p64x0/setup-sdhci-gpio.c
@@ -0,0 +1,104 @@
+/* linux/arch/arm/mach-s5p64x0/setup-sdhci-gpio.c
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * S5P64X0 - Helper functions for setting up SDHCI device(s) GPIO (HSMMC)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#include <linux/platform_device.h>
+#include <linux/io.h>
+#include <linux/gpio.h>
+
+#include <mach/regs-gpio.h>
+#include <mach/regs-clock.h>
+
+#include <plat/gpio-cfg.h>
+#include <plat/sdhci.h>
+#include <plat/cpu.h>
+
+void s5p64x0_setup_sdhci0_cfg_gpio(struct platform_device *dev, int width)
+{
+	struct s3c_sdhci_platdata *pdata = dev->dev.platform_data;
+
+	/* Set all the necessary GPG pins to special-function 2 */
+	if (soc_is_s5p6450())
+		s3c_gpio_cfgrange_nopull(S5P6450_GPG(0), 2 + width,
+					 S3C_GPIO_SFN(2));
+	else
+		s3c_gpio_cfgrange_nopull(S5P6440_GPG(0), 2 + width,
+					 S3C_GPIO_SFN(2));
+
+	/* Set GPG[6] pin to special-function 2 - MMC0 CDn */
+	if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
+		if (soc_is_s5p6450()) {
+			s3c_gpio_setpull(S5P6450_GPG(6), S3C_GPIO_PULL_UP);
+			s3c_gpio_cfgpin(S5P6450_GPG(6), S3C_GPIO_SFN(2));
+		} else {
+			s3c_gpio_setpull(S5P6440_GPG(6), S3C_GPIO_PULL_UP);
+			s3c_gpio_cfgpin(S5P6440_GPG(6), S3C_GPIO_SFN(2));
+		}
+	}
+}
+
+void s5p64x0_setup_sdhci1_cfg_gpio(struct platform_device *dev, int width)
+{
+	struct s3c_sdhci_platdata *pdata = dev->dev.platform_data;
+
+	/* Set GPH[0:1] pins to special-function 2 - CLK and CMD */
+	if (soc_is_s5p6450())
+		s3c_gpio_cfgrange_nopull(S5P6450_GPH(0), 2, S3C_GPIO_SFN(2));
+	else
+		s3c_gpio_cfgrange_nopull(S5P6440_GPH(0), 2 , S3C_GPIO_SFN(2));
+
+	switch (width) {
+	case 8:
+		/* Set data pins GPH[6:9] special-function 2 */
+		if (soc_is_s5p6450())
+			s3c_gpio_cfgrange_nopull(S5P6450_GPH(6), 4,
+						 S3C_GPIO_SFN(2));
+		else
+			s3c_gpio_cfgrange_nopull(S5P6440_GPH(6), 4,
+						 S3C_GPIO_SFN(2));
+	case 4:
+		/* set data pins GPH[2:5] special-function 2 */
+		if (soc_is_s5p6450())
+			s3c_gpio_cfgrange_nopull(S5P6450_GPH(2), 4,
+						 S3C_GPIO_SFN(2));
+		else
+			s3c_gpio_cfgrange_nopull(S5P6440_GPH(2), 4,
+						 S3C_GPIO_SFN(2));
+	default:
+		break;
+	}
+
+	/* Set GPG[6] pin to special-funtion 3 : MMC1 CDn */
+	if (pdata->cd_type == S3C_SDHCI_CD_INTERNAL) {
+		if (soc_is_s5p6450()) {
+			s3c_gpio_setpull(S5P6450_GPG(6), S3C_GPIO_PULL_UP);
+			s3c_gpio_cfgpin(S5P6450_GPG(6), S3C_GPIO_SFN(3));
+		} else {
+			s3c_gpio_setpull(S5P6440_GPG(6), S3C_GPIO_PULL_UP);
+			s3c_gpio_cfgpin(S5P6440_GPG(6), S3C_GPIO_SFN(3));
+		}
+	}
+}
+
+void s5p6440_setup_sdhci2_cfg_gpio(struct platform_device *dev, int width)
+{
+	/* Set GPC[4:5] pins to special-function 3 - CLK and CMD */
+	s3c_gpio_cfgrange_nopull(S5P6440_GPC(4), 2, S3C_GPIO_SFN(3));
+
+	/* Set data pins GPH[6:9] pins to special-function 3 */
+	s3c_gpio_cfgrange_nopull(S5P6440_GPH(6), 4, S3C_GPIO_SFN(3));
+}
+
+void s5p6450_setup_sdhci2_cfg_gpio(struct platform_device *dev, int width)
+{
+	/* Set all the necessary GPG pins to special-function 3 */
+	s3c_gpio_cfgrange_nopull(S5P6450_GPG(7), 2 + width, S3C_GPIO_SFN(3));
+}
diff --git a/arch/arm/mach-s5p64x0/setup-spi.c b/arch/arm/mach-s5p64x0/setup-spi.c
new file mode 100644
index 000000000000..e9b841240352
--- /dev/null
+++ b/arch/arm/mach-s5p64x0/setup-spi.c
@@ -0,0 +1,55 @@
+/* linux/arch/arm/mach-s5p64x0/setup-spi.c
+ *
+ * Copyright (C) 2011 Samsung Electronics Ltd.
+ *		http://www.samsung.com/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/gpio.h>
+#include <linux/platform_device.h>
+#include <linux/io.h>
+
+#include <plat/gpio-cfg.h>
+#include <plat/cpu.h>
+#include <plat/s3c64xx-spi.h>
+
+#ifdef CONFIG_S3C64XX_DEV_SPI0
+struct s3c64xx_spi_info s3c64xx_spi0_pdata __initdata = {
+	.fifo_lvl_mask	= 0x1ff,
+	.rx_lvl_offset	= 15,
+	.tx_st_done	= 25,
+};
+
+int s3c64xx_spi0_cfg_gpio(struct platform_device *dev)
+{
+	if (soc_is_s5p6450())
+		s3c_gpio_cfgall_range(S5P6450_GPC(0), 3,
+					S3C_GPIO_SFN(2), S3C_GPIO_PULL_UP);
+	else
+		s3c_gpio_cfgall_range(S5P6440_GPC(0), 3,
+					S3C_GPIO_SFN(2), S3C_GPIO_PULL_UP);
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_S3C64XX_DEV_SPI1
+struct s3c64xx_spi_info s3c64xx_spi1_pdata __initdata = {
+	.fifo_lvl_mask	= 0x7f,
+	.rx_lvl_offset	= 15,
+	.tx_st_done	= 25,
+};
+
+int s3c64xx_spi1_cfg_gpio(struct platform_device *dev)
+{
+	if (soc_is_s5p6450())
+		s3c_gpio_cfgall_range(S5P6450_GPC(4), 3,
+					S3C_GPIO_SFN(2), S3C_GPIO_PULL_UP);
+	else
+		s3c_gpio_cfgall_range(S5P6440_GPC(4), 3,
+					S3C_GPIO_SFN(2), S3C_GPIO_PULL_UP);
+	return 0;
+}
+#endif
diff --git a/arch/arm/mach-s5pc100/Kconfig b/arch/arm/mach-s5pc100/Kconfig
index e538a4c67e9c..75a26eaf2633 100644
--- a/arch/arm/mach-s5pc100/Kconfig
+++ b/arch/arm/mach-s5pc100/Kconfig
@@ -45,6 +45,11 @@ config S5PC100_SETUP_SDHCI_GPIO
 	help
 	  Common setup code for SDHCI gpio.
 
+config S5PC100_SETUP_SPI
+	bool
+	help
+	  Common setup code for SPI GPIO configurations.
+
 config MACH_SMDKC100
 	bool "SMDKC100"
 	select CPU_S5PC100
diff --git a/arch/arm/mach-s5pc100/Makefile b/arch/arm/mach-s5pc100/Makefile
index c3166c4d2ace..118c711f74e8 100644
--- a/arch/arm/mach-s5pc100/Makefile
+++ b/arch/arm/mach-s5pc100/Makefile
@@ -22,12 +22,11 @@ obj-$(CONFIG_MACH_SMDKC100)	+= mach-smdkc100.o
 # device support
 
 obj-y				+= dev-audio.o
-obj-$(CONFIG_S3C64XX_DEV_SPI)	+= dev-spi.o
 
 obj-y					+= setup-i2c0.o
 obj-$(CONFIG_S5PC100_SETUP_FB_24BPP)	+= setup-fb-24bpp.o
 obj-$(CONFIG_S5PC100_SETUP_I2C1)	+= setup-i2c1.o
 obj-$(CONFIG_S5PC100_SETUP_IDE)		+= setup-ide.o
 obj-$(CONFIG_S5PC100_SETUP_KEYPAD)	+= setup-keypad.o
-obj-$(CONFIG_S5PC100_SETUP_SDHCI)	+= setup-sdhci.o
 obj-$(CONFIG_S5PC100_SETUP_SDHCI_GPIO)	+= setup-sdhci-gpio.o
+obj-$(CONFIG_S5PC100_SETUP_SPI)		+= setup-spi.o
diff --git a/arch/arm/mach-s5pc100/clock.c b/arch/arm/mach-s5pc100/clock.c
index c4c74893f53c..247194dd366c 100644
--- a/arch/arm/mach-s5pc100/clock.c
+++ b/arch/arm/mach-s5pc100/clock.c
@@ -427,24 +427,6 @@ static struct clk init_clocks_off[] = {
 		.enable		= s5pc100_d0_2_ctrl,
 		.ctrlbit	= (1 << 1),
 	}, {
-		.name		= "hsmmc",
-		.devname	= "s3c-sdhci.2",
-		.parent		= &clk_div_d1_bus.clk,
-		.enable		= s5pc100_d1_0_ctrl,
-		.ctrlbit	= (1 << 7),
-	}, {
-		.name		= "hsmmc",
-		.devname	= "s3c-sdhci.1",
-		.parent		= &clk_div_d1_bus.clk,
-		.enable		= s5pc100_d1_0_ctrl,
-		.ctrlbit	= (1 << 6),
-	}, {
-		.name		= "hsmmc",
-		.devname	= "s3c-sdhci.0",
-		.parent		= &clk_div_d1_bus.clk,
-		.enable		= s5pc100_d1_0_ctrl,
-		.ctrlbit	= (1 << 5),
-	}, {
 		.name		= "modemif",
 		.parent		= &clk_div_d1_bus.clk,
 		.enable		= s5pc100_d1_0_ctrl,
@@ -674,24 +656,6 @@ static struct clk init_clocks_off[] = {
 		.enable		= s5pc100_d1_5_ctrl,
 		.ctrlbit	= (1 << 8),
 	}, {
-		.name		= "spi_48m",
-		.devname	= "s3c64xx-spi.0",
-		.parent		= &clk_mout_48m.clk,
-		.enable		= s5pc100_sclk0_ctrl,
-		.ctrlbit	= (1 << 7),
-	}, {
-		.name		= "spi_48m",
-		.devname	= "s3c64xx-spi.1",
-		.parent		= &clk_mout_48m.clk,
-		.enable		= s5pc100_sclk0_ctrl,
-		.ctrlbit	= (1 << 8),
-	}, {
-		.name		= "spi_48m",
-		.devname	= "s3c64xx-spi.2",
-		.parent		= &clk_mout_48m.clk,
-		.enable		= s5pc100_sclk0_ctrl,
-		.ctrlbit	= (1 << 9),
-	}, {
 		.name		= "mmc_48m",
 		.devname	= "s3c-sdhci.0",
 		.parent		= &clk_mout_48m.clk,
@@ -712,6 +676,54 @@ static struct clk init_clocks_off[] = {
 	},
 };
 
+static struct clk clk_hsmmc2 = {
+	.name		= "hsmmc",
+	.devname	= "s3c-sdhci.2",
+	.parent		= &clk_div_d1_bus.clk,
+	.enable		= s5pc100_d1_0_ctrl,
+	.ctrlbit	= (1 << 7),
+};
+
+static struct clk clk_hsmmc1 = {
+	.name		= "hsmmc",
+	.devname	= "s3c-sdhci.1",
+	.parent		= &clk_div_d1_bus.clk,
+	.enable		= s5pc100_d1_0_ctrl,
+	.ctrlbit	= (1 << 6),
+};
+
+static struct clk clk_hsmmc0 = {
+	.name		= "hsmmc",
+	.devname	= "s3c-sdhci.0",
+	.parent		= &clk_div_d1_bus.clk,
+	.enable		= s5pc100_d1_0_ctrl,
+	.ctrlbit	= (1 << 5),
+};
+
+static struct clk clk_48m_spi0 = {
+	.name		= "spi_48m",
+	.devname	= "s3c64xx-spi.0",
+	.parent		= &clk_mout_48m.clk,
+	.enable		= s5pc100_sclk0_ctrl,
+	.ctrlbit	= (1 << 7),
+};
+
+static struct clk clk_48m_spi1 = {
+	.name		= "spi_48m",
+	.devname	= "s3c64xx-spi.1",
+	.parent		= &clk_mout_48m.clk,
+	.enable		= s5pc100_sclk0_ctrl,
+	.ctrlbit	= (1 << 8),
+};
+
+static struct clk clk_48m_spi2 = {
+	.name		= "spi_48m",
+	.devname	= "s3c64xx-spi.2",
+	.parent		= &clk_mout_48m.clk,
+	.enable		= s5pc100_sclk0_ctrl,
+	.ctrlbit	= (1 << 9),
+};
+
 static struct clk clk_vclk54m = {
 	.name		= "vclk_54m",
 	.rate		= 54000000,
@@ -930,49 +942,6 @@ static struct clksrc_clk clk_sclk_spdif = {
 static struct clksrc_clk clksrcs[] = {
 	{
 		.clk	= {
-			.name		= "sclk_spi",
-			.devname	= "s3c64xx-spi.0",
-			.ctrlbit	= (1 << 4),
-			.enable		= s5pc100_sclk0_ctrl,
-
-		},
-		.sources = &clk_src_group1,
-		.reg_src = { .reg = S5P_CLK_SRC1, .shift = 4, .size = 2 },
-		.reg_div = { .reg = S5P_CLK_DIV2, .shift = 4, .size = 4 },
-	}, {
-		.clk	= {
-			.name		= "sclk_spi",
-			.devname	= "s3c64xx-spi.1",
-			.ctrlbit	= (1 << 5),
-			.enable		= s5pc100_sclk0_ctrl,
-
-		},
-		.sources = &clk_src_group1,
-		.reg_src = { .reg = S5P_CLK_SRC1, .shift = 8, .size = 2 },
-		.reg_div = { .reg = S5P_CLK_DIV2, .shift = 8, .size = 4 },
-	}, {
-		.clk	= {
-			.name		= "sclk_spi",
-			.devname	= "s3c64xx-spi.2",
-			.ctrlbit	= (1 << 6),
-			.enable		= s5pc100_sclk0_ctrl,
-
-		},
-		.sources = &clk_src_group1,
-		.reg_src = { .reg = S5P_CLK_SRC1, .shift = 12, .size = 2 },
-		.reg_div = { .reg = S5P_CLK_DIV2, .shift = 12, .size = 4 },
-	}, {
-		.clk	= {
-			.name		= "uclk1",
-			.ctrlbit	= (1 << 3),
-			.enable		= s5pc100_sclk0_ctrl,
-
-		},
-		.sources = &clk_src_group2,
-		.reg_src = { .reg = S5P_CLK_SRC1, .shift = 0, .size = 1 },
-		.reg_div = { .reg = S5P_CLK_DIV2, .shift = 0, .size = 4 },
-	}, {
-		.clk	= {
 			.name		= "sclk_mixer",
 			.ctrlbit	= (1 << 6),
 			.enable		= s5pc100_sclk0_ctrl,
@@ -1025,39 +994,6 @@ static struct clksrc_clk clksrcs[] = {
 		.reg_div = { .reg = S5P_CLK_DIV3, .shift = 24, .size = 4 },
 	}, {
 		.clk	= {
-			.name		= "sclk_mmc",
-			.devname	= "s3c-sdhci.0",
-			.ctrlbit	= (1 << 12),
-			.enable		= s5pc100_sclk1_ctrl,
-
-		},
-		.sources = &clk_src_mmc0,
-		.reg_src = { .reg = S5P_CLK_SRC2, .shift = 0, .size = 2 },
-		.reg_div = { .reg = S5P_CLK_DIV3, .shift = 0, .size = 4 },
-	}, {
-		.clk	= {
-			.name		= "sclk_mmc",
-			.devname	= "s3c-sdhci.1",
-			.ctrlbit	= (1 << 13),
-			.enable		= s5pc100_sclk1_ctrl,
-
-		},
-		.sources = &clk_src_mmc12,
-		.reg_src = { .reg = S5P_CLK_SRC2, .shift = 4, .size = 2 },
-		.reg_div = { .reg = S5P_CLK_DIV3, .shift = 4, .size = 4 },
-	}, {
-		.clk	= {
-			.name		= "sclk_mmc",
-			.devname	= "s3c-sdhci.2",
-			.ctrlbit	= (1 << 14),
-			.enable		= s5pc100_sclk1_ctrl,
-
-		},
-		.sources = &clk_src_mmc12,
-		.reg_src = { .reg = S5P_CLK_SRC2, .shift = 8, .size = 2 },
-		.reg_div = { .reg = S5P_CLK_DIV3, .shift = 8, .size = 4 },
-	}, {
-		.clk	= {
 			.name		= "sclk_irda",
 			.ctrlbit	= (1 << 10),
 			.enable		= s5pc100_sclk0_ctrl,
@@ -1099,6 +1035,89 @@ static struct clksrc_clk clksrcs[] = {
 	},
 };
 
+static struct clksrc_clk clk_sclk_uart = {
+	.clk	= {
+		.name		= "uclk1",
+		.ctrlbit	= (1 << 3),
+		.enable		= s5pc100_sclk0_ctrl,
+	},
+	.sources = &clk_src_group2,
+	.reg_src = { .reg = S5P_CLK_SRC1, .shift = 0, .size = 1 },
+	.reg_div = { .reg = S5P_CLK_DIV2, .shift = 0, .size = 4 },
+};
+
+static struct clksrc_clk clk_sclk_mmc0 = {
+	.clk	= {
+		.name		= "sclk_mmc",
+		.devname	= "s3c-sdhci.0",
+		.ctrlbit	= (1 << 12),
+		.enable		= s5pc100_sclk1_ctrl,
+	},
+	.sources = &clk_src_mmc0,
+	.reg_src = { .reg = S5P_CLK_SRC2, .shift = 0, .size = 2 },
+	.reg_div = { .reg = S5P_CLK_DIV3, .shift = 0, .size = 4 },
+};
+
+static struct clksrc_clk clk_sclk_mmc1 = {
+	.clk	= {
+		.name		= "sclk_mmc",
+		.devname	= "s3c-sdhci.1",
+		.ctrlbit	= (1 << 13),
+		.enable		= s5pc100_sclk1_ctrl,
+	},
+	.sources = &clk_src_mmc12,
+	.reg_src = { .reg = S5P_CLK_SRC2, .shift = 4, .size = 2 },
+	.reg_div = { .reg = S5P_CLK_DIV3, .shift = 4, .size = 4 },
+};
+
+static struct clksrc_clk clk_sclk_mmc2 = {
+	.clk	= {
+		.name		= "sclk_mmc",
+		.devname	= "s3c-sdhci.2",
+		.ctrlbit	= (1 << 14),
+		.enable		= s5pc100_sclk1_ctrl,
+	},
+	.sources = &clk_src_mmc12,
+	.reg_src = { .reg = S5P_CLK_SRC2, .shift = 8, .size = 2 },
+	.reg_div = { .reg = S5P_CLK_DIV3, .shift = 8, .size = 4 },
+};
+
+static struct clksrc_clk clk_sclk_spi0 = {
+	.clk	= {
+		.name		= "sclk_spi",
+		.devname	= "s3c64xx-spi.0",
+		.ctrlbit	= (1 << 4),
+		.enable		= s5pc100_sclk0_ctrl,
+	},
+	.sources = &clk_src_group1,
+	.reg_src = { .reg = S5P_CLK_SRC1, .shift = 4, .size = 2 },
+	.reg_div = { .reg = S5P_CLK_DIV2, .shift = 4, .size = 4 },
+};
+
+static struct clksrc_clk clk_sclk_spi1 = {
+	.clk	= {
+		.name		= "sclk_spi",
+		.devname	= "s3c64xx-spi.1",
+		.ctrlbit	= (1 << 5),
+		.enable		= s5pc100_sclk0_ctrl,
+	},
+	.sources = &clk_src_group1,
+	.reg_src = { .reg = S5P_CLK_SRC1, .shift = 8, .size = 2 },
+	.reg_div = { .reg = S5P_CLK_DIV2, .shift = 8, .size = 4 },
+};
+
+static struct clksrc_clk clk_sclk_spi2 = {
+	.clk	= {
+		.name		= "sclk_spi",
+		.devname	= "s3c64xx-spi.2",
+		.ctrlbit	= (1 << 6),
+		.enable		= s5pc100_sclk0_ctrl,
+	},
+	.sources = &clk_src_group1,
+	.reg_src = { .reg = S5P_CLK_SRC1, .shift = 12, .size = 2 },
+	.reg_div = { .reg = S5P_CLK_DIV2, .shift = 12, .size = 4 },
+};
+
 /* Clock initialisation code */
 static struct clksrc_clk *sysclks[] = {
 	&clk_mout_apll,
@@ -1128,6 +1147,25 @@ static struct clksrc_clk *sysclks[] = {
 	&clk_sclk_spdif,
 };
 
+static struct clk *clk_cdev[] = {
+	&clk_hsmmc0,
+	&clk_hsmmc1,
+	&clk_hsmmc2,
+	&clk_48m_spi0,
+	&clk_48m_spi1,
+	&clk_48m_spi2,
+};
+
+static struct clksrc_clk *clksrc_cdev[] = {
+	&clk_sclk_uart,
+	&clk_sclk_mmc0,
+	&clk_sclk_mmc1,
+	&clk_sclk_mmc2,
+	&clk_sclk_spi0,
+	&clk_sclk_spi1,
+	&clk_sclk_spi2,
+};
+
 void __init_or_cpufreq s5pc100_setup_clocks(void)
 {
 	unsigned long xtal;
@@ -1267,6 +1305,24 @@ static struct clk *clks[] __initdata = {
 	&clk_pcmcdclk1,
 };
 
+static struct clk_lookup s5pc100_clk_lookup[] = {
+	CLKDEV_INIT(NULL, "clk_uart_baud2", &clk_p),
+	CLKDEV_INIT(NULL, "clk_uart_baud3", &clk_sclk_uart.clk),
+	CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.0", &clk_hsmmc0),
+	CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.0", &clk_hsmmc1),
+	CLKDEV_INIT("s3c-sdhci.2", "mmc_busclk.0", &clk_hsmmc2),
+	CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.2", &clk_sclk_mmc0.clk),
+	CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.2", &clk_sclk_mmc1.clk),
+	CLKDEV_INIT("s3c-sdhci.2", "mmc_busclk.2", &clk_sclk_mmc2.clk),
+	CLKDEV_INIT(NULL, "spi_busclk0", &clk_p),
+	CLKDEV_INIT("s3c64xx-spi.0", "spi_busclk1", &clk_48m_spi0),
+	CLKDEV_INIT("s3c64xx-spi.0", "spi_busclk2", &clk_sclk_spi0.clk),
+	CLKDEV_INIT("s3c64xx-spi.1", "spi_busclk1", &clk_48m_spi1),
+	CLKDEV_INIT("s3c64xx-spi.1", "spi_busclk2", &clk_sclk_spi1.clk),
+	CLKDEV_INIT("s3c64xx-spi.2", "spi_busclk1", &clk_48m_spi2),
+	CLKDEV_INIT("s3c64xx-spi.2", "spi_busclk2", &clk_sclk_spi2.clk),
+};
+
 void __init s5pc100_register_clocks(void)
 {
 	int ptr;
@@ -1278,9 +1334,16 @@ void __init s5pc100_register_clocks(void)
 
 	s3c_register_clksrc(clksrcs, ARRAY_SIZE(clksrcs));
 	s3c_register_clocks(init_clocks, ARRAY_SIZE(init_clocks));
+	for (ptr = 0; ptr < ARRAY_SIZE(clksrc_cdev); ptr++)
+		s3c_register_clksrc(clksrc_cdev[ptr], 1);
 
 	s3c_register_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
 	s3c_disable_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
+	clkdev_add_table(s5pc100_clk_lookup, ARRAY_SIZE(s5pc100_clk_lookup));
+
+	s3c24xx_register_clocks(clk_cdev, ARRAY_SIZE(clk_cdev));
+	for (ptr = 0; ptr < ARRAY_SIZE(clk_cdev); ptr++)
+		s3c_disable_clocks(clk_cdev[ptr], 1);
 
 	s3c24xx_register_clock(&dummy_apb_pclk);
 
diff --git a/arch/arm/mach-s5pc100/dev-spi.c b/arch/arm/mach-s5pc100/dev-spi.c
deleted file mode 100644
index e5d6c4dceb56..000000000000
--- a/arch/arm/mach-s5pc100/dev-spi.c
+++ /dev/null
@@ -1,227 +0,0 @@
-/* linux/arch/arm/mach-s5pc100/dev-spi.c
- *
- * Copyright (C) 2010 Samsung Electronics Co. Ltd.
- *	Jaswinder Singh <jassi.brar@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/platform_device.h>
-#include <linux/dma-mapping.h>
-#include <linux/gpio.h>
-
-#include <mach/dma.h>
-#include <mach/map.h>
-#include <mach/spi-clocks.h>
-#include <mach/irqs.h>
-
-#include <plat/s3c64xx-spi.h>
-#include <plat/gpio-cfg.h>
-#include <plat/irqs.h>
-
-static char *spi_src_clks[] = {
-	[S5PC100_SPI_SRCCLK_PCLK] = "pclk",
-	[S5PC100_SPI_SRCCLK_48M] = "spi_48m",
-	[S5PC100_SPI_SRCCLK_SPIBUS] = "spi_bus",
-};
-
-/* SPI Controller platform_devices */
-
-/* Since we emulate multi-cs capability, we do not touch the CS.
- * The emulated CS is toggled by board specific mechanism, as it can
- * be either some immediate GPIO or some signal out of some other
- * chip in between ... or some yet another way.
- * We simply do not assume anything about CS.
- */
-static int s5pc100_spi_cfg_gpio(struct platform_device *pdev)
-{
-	switch (pdev->id) {
-	case 0:
-		s3c_gpio_cfgall_range(S5PC100_GPB(0), 3,
-				      S3C_GPIO_SFN(2), S3C_GPIO_PULL_UP);
-		break;
-
-	case 1:
-		s3c_gpio_cfgall_range(S5PC100_GPB(4), 3,
-				      S3C_GPIO_SFN(2), S3C_GPIO_PULL_UP);
-		break;
-
-	case 2:
-		s3c_gpio_cfgpin(S5PC100_GPG3(0), S3C_GPIO_SFN(3));
-		s3c_gpio_setpull(S5PC100_GPG3(0), S3C_GPIO_PULL_UP);
-		s3c_gpio_cfgall_range(S5PC100_GPB(2), 2,
-				      S3C_GPIO_SFN(3), S3C_GPIO_PULL_UP);
-		break;
-
-	default:
-		dev_err(&pdev->dev, "Invalid SPI Controller number!");
-		return -EINVAL;
-	}
-
-	return 0;
-}
-
-static struct resource s5pc100_spi0_resource[] = {
-	[0] = {
-		.start = S5PC100_PA_SPI0,
-		.end   = S5PC100_PA_SPI0 + 0x100 - 1,
-		.flags = IORESOURCE_MEM,
-	},
-	[1] = {
-		.start = DMACH_SPI0_TX,
-		.end   = DMACH_SPI0_TX,
-		.flags = IORESOURCE_DMA,
-	},
-	[2] = {
-		.start = DMACH_SPI0_RX,
-		.end   = DMACH_SPI0_RX,
-		.flags = IORESOURCE_DMA,
-	},
-	[3] = {
-		.start = IRQ_SPI0,
-		.end   = IRQ_SPI0,
-		.flags = IORESOURCE_IRQ,
-	},
-};
-
-static struct s3c64xx_spi_info s5pc100_spi0_pdata = {
-	.cfg_gpio = s5pc100_spi_cfg_gpio,
-	.fifo_lvl_mask = 0x7f,
-	.rx_lvl_offset = 13,
-	.high_speed = 1,
-	.tx_st_done = 21,
-};
-
-static u64 spi_dmamask = DMA_BIT_MASK(32);
-
-struct platform_device s5pc100_device_spi0 = {
-	.name		  = "s3c64xx-spi",
-	.id		  = 0,
-	.num_resources	  = ARRAY_SIZE(s5pc100_spi0_resource),
-	.resource	  = s5pc100_spi0_resource,
-	.dev = {
-		.dma_mask		= &spi_dmamask,
-		.coherent_dma_mask	= DMA_BIT_MASK(32),
-		.platform_data = &s5pc100_spi0_pdata,
-	},
-};
-
-static struct resource s5pc100_spi1_resource[] = {
-	[0] = {
-		.start = S5PC100_PA_SPI1,
-		.end   = S5PC100_PA_SPI1 + 0x100 - 1,
-		.flags = IORESOURCE_MEM,
-	},
-	[1] = {
-		.start = DMACH_SPI1_TX,
-		.end   = DMACH_SPI1_TX,
-		.flags = IORESOURCE_DMA,
-	},
-	[2] = {
-		.start = DMACH_SPI1_RX,
-		.end   = DMACH_SPI1_RX,
-		.flags = IORESOURCE_DMA,
-	},
-	[3] = {
-		.start = IRQ_SPI1,
-		.end   = IRQ_SPI1,
-		.flags = IORESOURCE_IRQ,
-	},
-};
-
-static struct s3c64xx_spi_info s5pc100_spi1_pdata = {
-	.cfg_gpio = s5pc100_spi_cfg_gpio,
-	.fifo_lvl_mask = 0x7f,
-	.rx_lvl_offset = 13,
-	.high_speed = 1,
-	.tx_st_done = 21,
-};
-
-struct platform_device s5pc100_device_spi1 = {
-	.name		  = "s3c64xx-spi",
-	.id		  = 1,
-	.num_resources	  = ARRAY_SIZE(s5pc100_spi1_resource),
-	.resource	  = s5pc100_spi1_resource,
-	.dev = {
-		.dma_mask		= &spi_dmamask,
-		.coherent_dma_mask	= DMA_BIT_MASK(32),
-		.platform_data = &s5pc100_spi1_pdata,
-	},
-};
-
-static struct resource s5pc100_spi2_resource[] = {
-	[0] = {
-		.start = S5PC100_PA_SPI2,
-		.end   = S5PC100_PA_SPI2 + 0x100 - 1,
-		.flags = IORESOURCE_MEM,
-	},
-	[1] = {
-		.start = DMACH_SPI2_TX,
-		.end   = DMACH_SPI2_TX,
-		.flags = IORESOURCE_DMA,
-	},
-	[2] = {
-		.start = DMACH_SPI2_RX,
-		.end   = DMACH_SPI2_RX,
-		.flags = IORESOURCE_DMA,
-	},
-	[3] = {
-		.start = IRQ_SPI2,
-		.end   = IRQ_SPI2,
-		.flags = IORESOURCE_IRQ,
-	},
-};
-
-static struct s3c64xx_spi_info s5pc100_spi2_pdata = {
-	.cfg_gpio = s5pc100_spi_cfg_gpio,
-	.fifo_lvl_mask = 0x7f,
-	.rx_lvl_offset = 13,
-	.high_speed = 1,
-	.tx_st_done = 21,
-};
-
-struct platform_device s5pc100_device_spi2 = {
-	.name		  = "s3c64xx-spi",
-	.id		  = 2,
-	.num_resources	  = ARRAY_SIZE(s5pc100_spi2_resource),
-	.resource	  = s5pc100_spi2_resource,
-	.dev = {
-		.dma_mask		= &spi_dmamask,
-		.coherent_dma_mask	= DMA_BIT_MASK(32),
-		.platform_data = &s5pc100_spi2_pdata,
-	},
-};
-
-void __init s5pc100_spi_set_info(int cntrlr, int src_clk_nr, int num_cs)
-{
-	struct s3c64xx_spi_info *pd;
-
-	/* Reject invalid configuration */
-	if (!num_cs || src_clk_nr < 0
-			|| src_clk_nr > S5PC100_SPI_SRCCLK_SPIBUS) {
-		printk(KERN_ERR "%s: Invalid SPI configuration\n", __func__);
-		return;
-	}
-
-	switch (cntrlr) {
-	case 0:
-		pd = &s5pc100_spi0_pdata;
-		break;
-	case 1:
-		pd = &s5pc100_spi1_pdata;
-		break;
-	case 2:
-		pd = &s5pc100_spi2_pdata;
-		break;
-	default:
-		printk(KERN_ERR "%s: Invalid SPI controller(%d)\n",
-							__func__, cntrlr);
-		return;
-	}
-
-	pd->num_cs = num_cs;
-	pd->src_clk_nr = src_clk_nr;
-	pd->src_clk_name = spi_src_clks[src_clk_nr];
-}
diff --git a/arch/arm/mach-s5pc100/dma.c b/arch/arm/mach-s5pc100/dma.c
index 065a087f5a8b..c841f4d313f2 100644
--- a/arch/arm/mach-s5pc100/dma.c
+++ b/arch/arm/mach-s5pc100/dma.c
@@ -35,100 +35,42 @@
 
 static u64 dma_dmamask = DMA_BIT_MASK(32);
 
-struct dma_pl330_peri pdma0_peri[30] = {
-	{
-		.peri_id = (u8)DMACH_UART0_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_UART0_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_UART1_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_UART1_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_UART2_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_UART2_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_UART3_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_UART3_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = DMACH_IRDA,
-	}, {
-		.peri_id = (u8)DMACH_I2S0_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_I2S0_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_I2S0S_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_I2S1_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_I2S1_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_I2S2_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_I2S2_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_SPI0_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_SPI0_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_SPI1_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_SPI1_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_SPI2_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_SPI2_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_AC97_MICIN,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_AC97_PCMIN,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_AC97_PCMOUT,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_EXTERNAL,
-	}, {
-		.peri_id = (u8)DMACH_PWM,
-	}, {
-		.peri_id = (u8)DMACH_SPDIF,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_HSI_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_HSI_TX,
-		.rqtype = MEMTODEV,
-	},
+u8 pdma0_peri[] = {
+	DMACH_UART0_RX,
+	DMACH_UART0_TX,
+	DMACH_UART1_RX,
+	DMACH_UART1_TX,
+	DMACH_UART2_RX,
+	DMACH_UART2_TX,
+	DMACH_UART3_RX,
+	DMACH_UART3_TX,
+	DMACH_IRDA,
+	DMACH_I2S0_RX,
+	DMACH_I2S0_TX,
+	DMACH_I2S0S_TX,
+	DMACH_I2S1_RX,
+	DMACH_I2S1_TX,
+	DMACH_I2S2_RX,
+	DMACH_I2S2_TX,
+	DMACH_SPI0_RX,
+	DMACH_SPI0_TX,
+	DMACH_SPI1_RX,
+	DMACH_SPI1_TX,
+	DMACH_SPI2_RX,
+	DMACH_SPI2_TX,
+	DMACH_AC97_MICIN,
+	DMACH_AC97_PCMIN,
+	DMACH_AC97_PCMOUT,
+	DMACH_EXTERNAL,
+	DMACH_PWM,
+	DMACH_SPDIF,
+	DMACH_HSI_RX,
+	DMACH_HSI_TX,
 };
 
 struct dma_pl330_platdata s5pc100_pdma0_pdata = {
 	.nr_valid_peri = ARRAY_SIZE(pdma0_peri),
-	.peri = pdma0_peri,
+	.peri_id = pdma0_peri,
 };
 
 struct amba_device s5pc100_device_pdma0 = {
@@ -147,98 +89,42 @@ struct amba_device s5pc100_device_pdma0 = {
 	.periphid = 0x00041330,
 };
 
-struct dma_pl330_peri pdma1_peri[30] = {
-	{
-		.peri_id = (u8)DMACH_UART0_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_UART0_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_UART1_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_UART1_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_UART2_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_UART2_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_UART3_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_UART3_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = DMACH_IRDA,
-	}, {
-		.peri_id = (u8)DMACH_I2S0_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_I2S0_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_I2S0S_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_I2S1_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_I2S1_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_I2S2_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_I2S2_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_SPI0_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_SPI0_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_SPI1_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_SPI1_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_SPI2_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_SPI2_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_PCM0_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_PCM1_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_PCM1_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_PCM1_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_MSM_REQ0,
-	}, {
-		.peri_id = (u8)DMACH_MSM_REQ1,
-	}, {
-		.peri_id = (u8)DMACH_MSM_REQ2,
-	}, {
-		.peri_id = (u8)DMACH_MSM_REQ3,
-	},
+u8 pdma1_peri[] = {
+	DMACH_UART0_RX,
+	DMACH_UART0_TX,
+	DMACH_UART1_RX,
+	DMACH_UART1_TX,
+	DMACH_UART2_RX,
+	DMACH_UART2_TX,
+	DMACH_UART3_RX,
+	DMACH_UART3_TX,
+	DMACH_IRDA,
+	DMACH_I2S0_RX,
+	DMACH_I2S0_TX,
+	DMACH_I2S0S_TX,
+	DMACH_I2S1_RX,
+	DMACH_I2S1_TX,
+	DMACH_I2S2_RX,
+	DMACH_I2S2_TX,
+	DMACH_SPI0_RX,
+	DMACH_SPI0_TX,
+	DMACH_SPI1_RX,
+	DMACH_SPI1_TX,
+	DMACH_SPI2_RX,
+	DMACH_SPI2_TX,
+	DMACH_PCM0_RX,
+	DMACH_PCM0_TX,
+	DMACH_PCM1_RX,
+	DMACH_PCM1_TX,
+	DMACH_MSM_REQ0,
+	DMACH_MSM_REQ1,
+	DMACH_MSM_REQ2,
+	DMACH_MSM_REQ3,
 };
 
 struct dma_pl330_platdata s5pc100_pdma1_pdata = {
 	.nr_valid_peri = ARRAY_SIZE(pdma1_peri),
-	.peri = pdma1_peri,
+	.peri_id = pdma1_peri,
 };
 
 struct amba_device s5pc100_device_pdma1 = {
@@ -259,7 +145,12 @@ struct amba_device s5pc100_device_pdma1 = {
 
 static int __init s5pc100_dma_init(void)
 {
+	dma_cap_set(DMA_SLAVE, s5pc100_pdma0_pdata.cap_mask);
+	dma_cap_set(DMA_CYCLIC, s5pc100_pdma0_pdata.cap_mask);
 	amba_device_register(&s5pc100_device_pdma0, &iomem_resource);
+
+	dma_cap_set(DMA_SLAVE, s5pc100_pdma1_pdata.cap_mask);
+	dma_cap_set(DMA_CYCLIC, s5pc100_pdma1_pdata.cap_mask);
 	amba_device_register(&s5pc100_device_pdma1, &iomem_resource);
 
 	return 0;
diff --git a/arch/arm/mach-s5pc100/include/mach/irqs.h b/arch/arm/mach-s5pc100/include/mach/irqs.h
index d2eb4757381f..2870f12c7926 100644
--- a/arch/arm/mach-s5pc100/include/mach/irqs.h
+++ b/arch/arm/mach-s5pc100/include/mach/irqs.h
@@ -97,6 +97,8 @@
 #define IRQ_SDMFIQ		S5P_IRQ_VIC2(31)
 #define IRQ_VIC_END		S5P_IRQ_VIC2(31)
 
+#define IRQ_TIMER_BASE		(11)
+
 #define S5P_EINT_BASE1		(S5P_IRQ_VIC0(0))
 #define S5P_EINT_BASE2		(IRQ_VIC_END + 1)
 
diff --git a/arch/arm/mach-s5pc100/include/mach/map.h b/arch/arm/mach-s5pc100/include/mach/map.h
index ccbe6b767f7d..54bc4f82e17a 100644
--- a/arch/arm/mach-s5pc100/include/mach/map.h
+++ b/arch/arm/mach-s5pc100/include/mach/map.h
@@ -100,6 +100,9 @@
 #define S3C_PA_USB_HSOTG		S5PC100_PA_USB_HSOTG
 #define S3C_PA_USB_HSPHY		S5PC100_PA_USB_HSPHY
 #define S3C_PA_WDT			S5PC100_PA_WATCHDOG
+#define S3C_PA_SPI0			S5PC100_PA_SPI0
+#define S3C_PA_SPI1			S5PC100_PA_SPI1
+#define S3C_PA_SPI2			S5PC100_PA_SPI2
 
 #define S5P_PA_CHIPID			S5PC100_PA_CHIPID
 #define S5P_PA_FIMC0			S5PC100_PA_FIMC0
diff --git a/arch/arm/mach-s5pc100/setup-sdhci.c b/arch/arm/mach-s5pc100/setup-sdhci.c
deleted file mode 100644
index 6418c6e8a7b7..000000000000
--- a/arch/arm/mach-s5pc100/setup-sdhci.c
+++ /dev/null
@@ -1,23 +0,0 @@
-/* linux/arch/arm/mach-s5pc100/setup-sdhci.c
- *
- * Copyright 2008 Samsung Electronics
- *
- * S5PC100 - Helper functions for settign up SDHCI device(s) (HSMMC)
- *
- * Based on mach-s3c6410/setup-sdhci.c
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
-*/
-
-#include <linux/types.h>
-
-/* clock sources for the mmc bus clock, order as for the ctrl2[5..4] */
-
-char *s5pc100_hsmmc_clksrcs[4] = {
-	[0] = "hsmmc",		/* HCLK */
-	/* [1] = "hsmmc",	- duplicate HCLK entry */
-	[2] = "sclk_mmc",	/* mmc_bus */
-	/* [3] = "48m",		- note not successfully used yet */
-};
diff --git a/arch/arm/mach-s5pc100/setup-spi.c b/arch/arm/mach-s5pc100/setup-spi.c
new file mode 100644
index 000000000000..431a6f747caa
--- /dev/null
+++ b/arch/arm/mach-s5pc100/setup-spi.c
@@ -0,0 +1,65 @@
+/* linux/arch/arm/mach-s5pc100/setup-spi.c
+ *
+ * Copyright (C) 2011 Samsung Electronics Ltd.
+ *		http://www.samsung.com/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/gpio.h>
+#include <linux/platform_device.h>
+
+#include <plat/gpio-cfg.h>
+#include <plat/s3c64xx-spi.h>
+
+#ifdef CONFIG_S3C64XX_DEV_SPI0
+struct s3c64xx_spi_info s3c64xx_spi0_pdata __initdata = {
+	.fifo_lvl_mask	= 0x7f,
+	.rx_lvl_offset	= 13,
+	.high_speed	= 1,
+	.tx_st_done	= 21,
+};
+
+int s3c64xx_spi0_cfg_gpio(struct platform_device *dev)
+{
+	s3c_gpio_cfgall_range(S5PC100_GPB(0), 3,
+				S3C_GPIO_SFN(2), S3C_GPIO_PULL_UP);
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_S3C64XX_DEV_SPI1
+struct s3c64xx_spi_info s3c64xx_spi1_pdata __initdata = {
+	.fifo_lvl_mask	= 0x7f,
+	.rx_lvl_offset	= 13,
+	.high_speed	= 1,
+	.tx_st_done	= 21,
+};
+
+int s3c64xx_spi1_cfg_gpio(struct platform_device *dev)
+{
+	s3c_gpio_cfgall_range(S5PC100_GPB(4), 3,
+				S3C_GPIO_SFN(2), S3C_GPIO_PULL_UP);
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_S3C64XX_DEV_SPI2
+struct s3c64xx_spi_info s3c64xx_spi2_pdata __initdata = {
+	.fifo_lvl_mask	= 0x7f,
+	.rx_lvl_offset	= 13,
+	.high_speed	= 1,
+	.tx_st_done	= 21,
+};
+
+int s3c64xx_spi2_cfg_gpio(struct platform_device *dev)
+{
+	s3c_gpio_cfgpin(S5PC100_GPG3(0), S3C_GPIO_SFN(3));
+	s3c_gpio_setpull(S5PC100_GPG3(0), S3C_GPIO_PULL_UP);
+	s3c_gpio_cfgall_range(S5PC100_GPB(2), 2,
+				S3C_GPIO_SFN(3), S3C_GPIO_PULL_UP);
+	return 0;
+}
+#endif
diff --git a/arch/arm/mach-s5pv210/Kconfig b/arch/arm/mach-s5pv210/Kconfig
index 646057ab2e4c..2cdc42e838b8 100644
--- a/arch/arm/mach-s5pv210/Kconfig
+++ b/arch/arm/mach-s5pv210/Kconfig
@@ -60,6 +60,11 @@ config S5PV210_SETUP_FIMC
 	help
 	  Common setup code for the camera interfaces.
 
+config S5PV210_SETUP_SPI
+	bool
+	help
+	  Common setup code for SPI GPIO configurations.
+
 menu "S5PC110 Machines"
 
 config MACH_AQUILA
diff --git a/arch/arm/mach-s5pv210/Makefile b/arch/arm/mach-s5pv210/Makefile
index 4c59186de957..76a121dd52b4 100644
--- a/arch/arm/mach-s5pv210/Makefile
+++ b/arch/arm/mach-s5pv210/Makefile
@@ -29,7 +29,6 @@ obj-$(CONFIG_MACH_TORBRECK)	+= mach-torbreck.o
 # device support
 
 obj-y				+= dev-audio.o
-obj-$(CONFIG_S3C64XX_DEV_SPI)	+= dev-spi.o
 
 obj-y					+= setup-i2c0.o
 obj-$(CONFIG_S5PV210_SETUP_FB_24BPP)	+= setup-fb-24bpp.o
@@ -38,5 +37,5 @@ obj-$(CONFIG_S5PV210_SETUP_I2C1)	+= setup-i2c1.o
 obj-$(CONFIG_S5PV210_SETUP_I2C2)	+= setup-i2c2.o
 obj-$(CONFIG_S5PV210_SETUP_IDE)		+= setup-ide.o
 obj-$(CONFIG_S5PV210_SETUP_KEYPAD)	+= setup-keypad.o
-obj-$(CONFIG_S5PV210_SETUP_SDHCI)	+= setup-sdhci.o
 obj-$(CONFIG_S5PV210_SETUP_SDHCI_GPIO)	+= setup-sdhci-gpio.o
+obj-$(CONFIG_S5PV210_SETUP_SPI)		+= setup-spi.o
diff --git a/arch/arm/mach-s5pv210/clock.c b/arch/arm/mach-s5pv210/clock.c
index 04c9b578e626..c78dfddd77fd 100644
--- a/arch/arm/mach-s5pv210/clock.c
+++ b/arch/arm/mach-s5pv210/clock.c
@@ -400,30 +400,6 @@ static struct clk init_clocks_off[] = {
 		.enable		= s5pv210_clk_ip1_ctrl,
 		.ctrlbit	= (1<<25),
 	}, {
-		.name		= "hsmmc",
-		.devname	= "s3c-sdhci.0",
-		.parent		= &clk_hclk_psys.clk,
-		.enable		= s5pv210_clk_ip2_ctrl,
-		.ctrlbit	= (1<<16),
-	}, {
-		.name		= "hsmmc",
-		.devname	= "s3c-sdhci.1",
-		.parent		= &clk_hclk_psys.clk,
-		.enable		= s5pv210_clk_ip2_ctrl,
-		.ctrlbit	= (1<<17),
-	}, {
-		.name		= "hsmmc",
-		.devname	= "s3c-sdhci.2",
-		.parent		= &clk_hclk_psys.clk,
-		.enable		= s5pv210_clk_ip2_ctrl,
-		.ctrlbit	= (1<<18),
-	}, {
-		.name		= "hsmmc",
-		.devname	= "s3c-sdhci.3",
-		.parent		= &clk_hclk_psys.clk,
-		.enable		= s5pv210_clk_ip2_ctrl,
-		.ctrlbit	= (1<<19),
-	}, {
 		.name		= "systimer",
 		.parent		= &clk_pclk_psys.clk,
 		.enable		= s5pv210_clk_ip3_ctrl,
@@ -560,6 +536,38 @@ static struct clk init_clocks[] = {
 	},
 };
 
+static struct clk clk_hsmmc0 = {
+	.name		= "hsmmc",
+	.devname	= "s3c-sdhci.0",
+	.parent		= &clk_hclk_psys.clk,
+	.enable		= s5pv210_clk_ip2_ctrl,
+	.ctrlbit	= (1<<16),
+};
+
+static struct clk clk_hsmmc1 = {
+	.name		= "hsmmc",
+	.devname	= "s3c-sdhci.1",
+	.parent		= &clk_hclk_psys.clk,
+	.enable		= s5pv210_clk_ip2_ctrl,
+	.ctrlbit	= (1<<17),
+};
+
+static struct clk clk_hsmmc2 = {
+	.name		= "hsmmc",
+	.devname	= "s3c-sdhci.2",
+	.parent		= &clk_hclk_psys.clk,
+	.enable		= s5pv210_clk_ip2_ctrl,
+	.ctrlbit	= (1<<18),
+};
+
+static struct clk clk_hsmmc3 = {
+	.name		= "hsmmc",
+	.devname	= "s3c-sdhci.3",
+	.parent		= &clk_hclk_psys.clk,
+	.enable		= s5pv210_clk_ip2_ctrl,
+	.ctrlbit	= (1<<19),
+};
+
 static struct clk *clkset_uart_list[] = {
 	[6] = &clk_mout_mpll.clk,
 	[7] = &clk_mout_epll.clk,
@@ -810,46 +818,6 @@ static struct clksrc_clk clksrcs[] = {
 		.reg_div = { .reg = S5P_CLK_DIV6, .shift = 12, .size = 3 },
 	}, {
 		.clk	= {
-			.name		= "uclk1",
-			.devname	= "s5pv210-uart.0",
-			.enable		= s5pv210_clk_mask0_ctrl,
-			.ctrlbit	= (1 << 12),
-		},
-		.sources = &clkset_uart,
-		.reg_src = { .reg = S5P_CLK_SRC4, .shift = 16, .size = 4 },
-		.reg_div = { .reg = S5P_CLK_DIV4, .shift = 16, .size = 4 },
-	}, {
-		.clk		= {
-			.name		= "uclk1",
-			.devname	= "s5pv210-uart.1",
-			.enable		= s5pv210_clk_mask0_ctrl,
-			.ctrlbit	= (1 << 13),
-		},
-		.sources = &clkset_uart,
-		.reg_src = { .reg = S5P_CLK_SRC4, .shift = 20, .size = 4 },
-		.reg_div = { .reg = S5P_CLK_DIV4, .shift = 20, .size = 4 },
-	}, {
-		.clk		= {
-			.name		= "uclk1",
-			.devname	= "s5pv210-uart.2",
-			.enable		= s5pv210_clk_mask0_ctrl,
-			.ctrlbit	= (1 << 14),
-		},
-		.sources = &clkset_uart,
-		.reg_src = { .reg = S5P_CLK_SRC4, .shift = 24, .size = 4 },
-		.reg_div = { .reg = S5P_CLK_DIV4, .shift = 24, .size = 4 },
-	}, {
-		.clk		= {
-			.name		= "uclk1",
-			.devname	= "s5pv210-uart.3",
-			.enable		= s5pv210_clk_mask0_ctrl,
-			.ctrlbit	= (1 << 15),
-		},
-		.sources = &clkset_uart,
-		.reg_src = { .reg = S5P_CLK_SRC4, .shift = 28, .size = 4 },
-		.reg_div = { .reg = S5P_CLK_DIV4, .shift = 28, .size = 4 },
-	}, {
-		.clk	= {
 			.name		= "sclk_fimc",
 			.devname	= "s5pv210-fimc.0",
 			.enable		= s5pv210_clk_mask1_ctrl,
@@ -907,46 +875,6 @@ static struct clksrc_clk clksrcs[] = {
 		.reg_div = { .reg = S5P_CLK_DIV1, .shift = 20, .size = 4 },
 	}, {
 		.clk		= {
-			.name		= "sclk_mmc",
-			.devname	= "s3c-sdhci.0",
-			.enable		= s5pv210_clk_mask0_ctrl,
-			.ctrlbit	= (1 << 8),
-		},
-		.sources = &clkset_group2,
-		.reg_src = { .reg = S5P_CLK_SRC4, .shift = 0, .size = 4 },
-		.reg_div = { .reg = S5P_CLK_DIV4, .shift = 0, .size = 4 },
-	}, {
-		.clk		= {
-			.name		= "sclk_mmc",
-			.devname	= "s3c-sdhci.1",
-			.enable		= s5pv210_clk_mask0_ctrl,
-			.ctrlbit	= (1 << 9),
-		},
-		.sources = &clkset_group2,
-		.reg_src = { .reg = S5P_CLK_SRC4, .shift = 4, .size = 4 },
-		.reg_div = { .reg = S5P_CLK_DIV4, .shift = 4, .size = 4 },
-	}, {
-		.clk		= {
-			.name		= "sclk_mmc",
-			.devname	= "s3c-sdhci.2",
-			.enable		= s5pv210_clk_mask0_ctrl,
-			.ctrlbit	= (1 << 10),
-		},
-		.sources = &clkset_group2,
-		.reg_src = { .reg = S5P_CLK_SRC4, .shift = 8, .size = 4 },
-		.reg_div = { .reg = S5P_CLK_DIV4, .shift = 8, .size = 4 },
-	}, {
-		.clk		= {
-			.name		= "sclk_mmc",
-			.devname	= "s3c-sdhci.3",
-			.enable		= s5pv210_clk_mask0_ctrl,
-			.ctrlbit	= (1 << 11),
-		},
-		.sources = &clkset_group2,
-		.reg_src = { .reg = S5P_CLK_SRC4, .shift = 12, .size = 4 },
-		.reg_div = { .reg = S5P_CLK_DIV4, .shift = 12, .size = 4 },
-	}, {
-		.clk		= {
 			.name		= "sclk_mfc",
 			.devname	= "s5p-mfc",
 			.enable		= s5pv210_clk_ip0_ctrl,
@@ -984,26 +912,6 @@ static struct clksrc_clk clksrcs[] = {
 		.reg_div = { .reg = S5P_CLK_DIV1, .shift = 28, .size = 4 },
 	}, {
 		.clk		= {
-			.name		= "sclk_spi",
-			.devname	= "s3c64xx-spi.0",
-			.enable		= s5pv210_clk_mask0_ctrl,
-			.ctrlbit	= (1 << 16),
-		},
-		.sources = &clkset_group2,
-		.reg_src = { .reg = S5P_CLK_SRC5, .shift = 0, .size = 4 },
-		.reg_div = { .reg = S5P_CLK_DIV5, .shift = 0, .size = 4 },
-	}, {
-		.clk		= {
-			.name		= "sclk_spi",
-			.devname	= "s3c64xx-spi.1",
-			.enable		= s5pv210_clk_mask0_ctrl,
-			.ctrlbit	= (1 << 17),
-		},
-		.sources = &clkset_group2,
-		.reg_src = { .reg = S5P_CLK_SRC5, .shift = 4, .size = 4 },
-		.reg_div = { .reg = S5P_CLK_DIV5, .shift = 4, .size = 4 },
-	}, {
-		.clk		= {
 			.name		= "sclk_pwi",
 			.enable		= s5pv210_clk_mask0_ctrl,
 			.ctrlbit	= (1 << 29),
@@ -1023,6 +931,147 @@ static struct clksrc_clk clksrcs[] = {
 	},
 };
 
+static struct clksrc_clk clk_sclk_uart0 = {
+	.clk	= {
+		.name		= "uclk1",
+		.devname	= "s5pv210-uart.0",
+		.enable		= s5pv210_clk_mask0_ctrl,
+		.ctrlbit	= (1 << 12),
+	},
+	.sources = &clkset_uart,
+	.reg_src = { .reg = S5P_CLK_SRC4, .shift = 16, .size = 4 },
+	.reg_div = { .reg = S5P_CLK_DIV4, .shift = 16, .size = 4 },
+};
+
+static struct clksrc_clk clk_sclk_uart1 = {
+	.clk		= {
+		.name		= "uclk1",
+		.devname	= "s5pv210-uart.1",
+		.enable		= s5pv210_clk_mask0_ctrl,
+		.ctrlbit	= (1 << 13),
+	},
+	.sources = &clkset_uart,
+	.reg_src = { .reg = S5P_CLK_SRC4, .shift = 20, .size = 4 },
+	.reg_div = { .reg = S5P_CLK_DIV4, .shift = 20, .size = 4 },
+};
+
+static struct clksrc_clk clk_sclk_uart2 = {
+	.clk		= {
+		.name		= "uclk1",
+		.devname	= "s5pv210-uart.2",
+		.enable		= s5pv210_clk_mask0_ctrl,
+		.ctrlbit	= (1 << 14),
+	},
+	.sources = &clkset_uart,
+	.reg_src = { .reg = S5P_CLK_SRC4, .shift = 24, .size = 4 },
+	.reg_div = { .reg = S5P_CLK_DIV4, .shift = 24, .size = 4 },
+};
+
+static struct clksrc_clk clk_sclk_uart3	= {
+	.clk		= {
+		.name		= "uclk1",
+		.devname	= "s5pv210-uart.3",
+		.enable		= s5pv210_clk_mask0_ctrl,
+		.ctrlbit	= (1 << 15),
+	},
+	.sources = &clkset_uart,
+	.reg_src = { .reg = S5P_CLK_SRC4, .shift = 28, .size = 4 },
+	.reg_div = { .reg = S5P_CLK_DIV4, .shift = 28, .size = 4 },
+};
+
+static struct clksrc_clk clk_sclk_mmc0 = {
+	.clk		= {
+		.name		= "sclk_mmc",
+		.devname	= "s3c-sdhci.0",
+		.enable		= s5pv210_clk_mask0_ctrl,
+		.ctrlbit	= (1 << 8),
+	},
+	.sources = &clkset_group2,
+	.reg_src = { .reg = S5P_CLK_SRC4, .shift = 0, .size = 4 },
+	.reg_div = { .reg = S5P_CLK_DIV4, .shift = 0, .size = 4 },
+};
+
+static struct clksrc_clk clk_sclk_mmc1 = {
+	.clk		= {
+		.name		= "sclk_mmc",
+		.devname	= "s3c-sdhci.1",
+		.enable		= s5pv210_clk_mask0_ctrl,
+		.ctrlbit	= (1 << 9),
+	},
+	.sources = &clkset_group2,
+	.reg_src = { .reg = S5P_CLK_SRC4, .shift = 4, .size = 4 },
+	.reg_div = { .reg = S5P_CLK_DIV4, .shift = 4, .size = 4 },
+};
+
+static struct clksrc_clk clk_sclk_mmc2 = {
+	.clk		= {
+		.name		= "sclk_mmc",
+		.devname	= "s3c-sdhci.2",
+		.enable		= s5pv210_clk_mask0_ctrl,
+		.ctrlbit	= (1 << 10),
+	},
+	.sources = &clkset_group2,
+	.reg_src = { .reg = S5P_CLK_SRC4, .shift = 8, .size = 4 },
+	.reg_div = { .reg = S5P_CLK_DIV4, .shift = 8, .size = 4 },
+};
+
+static struct clksrc_clk clk_sclk_mmc3 = {
+	.clk		= {
+		.name		= "sclk_mmc",
+		.devname	= "s3c-sdhci.3",
+		.enable		= s5pv210_clk_mask0_ctrl,
+		.ctrlbit	= (1 << 11),
+	},
+	.sources = &clkset_group2,
+	.reg_src = { .reg = S5P_CLK_SRC4, .shift = 12, .size = 4 },
+	.reg_div = { .reg = S5P_CLK_DIV4, .shift = 12, .size = 4 },
+};
+
+static struct clksrc_clk clk_sclk_spi0 = {
+	.clk		= {
+		.name		= "sclk_spi",
+		.devname	= "s3c64xx-spi.0",
+		.enable		= s5pv210_clk_mask0_ctrl,
+		.ctrlbit	= (1 << 16),
+	},
+	.sources = &clkset_group2,
+	.reg_src = { .reg = S5P_CLK_SRC5, .shift = 0, .size = 4 },
+	.reg_div = { .reg = S5P_CLK_DIV5, .shift = 0, .size = 4 },
+	};
+
+static struct clksrc_clk clk_sclk_spi1 = {
+	.clk		= {
+		.name		= "sclk_spi",
+		.devname	= "s3c64xx-spi.1",
+		.enable		= s5pv210_clk_mask0_ctrl,
+		.ctrlbit	= (1 << 17),
+	},
+	.sources = &clkset_group2,
+	.reg_src = { .reg = S5P_CLK_SRC5, .shift = 4, .size = 4 },
+	.reg_div = { .reg = S5P_CLK_DIV5, .shift = 4, .size = 4 },
+	};
+
+
+static struct clksrc_clk *clksrc_cdev[] = {
+	&clk_sclk_uart0,
+	&clk_sclk_uart1,
+	&clk_sclk_uart2,
+	&clk_sclk_uart3,
+	&clk_sclk_mmc0,
+	&clk_sclk_mmc1,
+	&clk_sclk_mmc2,
+	&clk_sclk_mmc3,
+	&clk_sclk_spi0,
+	&clk_sclk_spi1,
+};
+
+static struct clk *clk_cdev[] = {
+	&clk_hsmmc0,
+	&clk_hsmmc1,
+	&clk_hsmmc2,
+	&clk_hsmmc3,
+};
+
 /* Clock initialisation code */
 static struct clksrc_clk *sysclks[] = {
 	&clk_mout_apll,
@@ -1262,6 +1311,25 @@ static struct clk *clks[] __initdata = {
 	&clk_pcmcdclk2,
 };
 
+static struct clk_lookup s5pv210_clk_lookup[] = {
+	CLKDEV_INIT(NULL, "clk_uart_baud0", &clk_p),
+	CLKDEV_INIT("s5pv210-uart.0", "clk_uart_baud1", &clk_sclk_uart0.clk),
+	CLKDEV_INIT("s5pv210-uart.1", "clk_uart_baud1", &clk_sclk_uart1.clk),
+	CLKDEV_INIT("s5pv210-uart.2", "clk_uart_baud1", &clk_sclk_uart2.clk),
+	CLKDEV_INIT("s5pv210-uart.3", "clk_uart_baud1", &clk_sclk_uart3.clk),
+	CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.0", &clk_hsmmc0),
+	CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.0", &clk_hsmmc1),
+	CLKDEV_INIT("s3c-sdhci.2", "mmc_busclk.0", &clk_hsmmc2),
+	CLKDEV_INIT("s3c-sdhci.3", "mmc_busclk.0", &clk_hsmmc3),
+	CLKDEV_INIT("s3c-sdhci.0", "mmc_busclk.2", &clk_sclk_mmc0.clk),
+	CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.2", &clk_sclk_mmc1.clk),
+	CLKDEV_INIT("s3c-sdhci.2", "mmc_busclk.2", &clk_sclk_mmc2.clk),
+	CLKDEV_INIT("s3c-sdhci.3", "mmc_busclk.2", &clk_sclk_mmc3.clk),
+	CLKDEV_INIT(NULL, "spi_busclk0", &clk_p),
+	CLKDEV_INIT("s3c64xx-spi.0", "spi_busclk1", &clk_sclk_spi0.clk),
+	CLKDEV_INIT("s3c64xx-spi.1", "spi_busclk1", &clk_sclk_spi1.clk),
+};
+
 void __init s5pv210_register_clocks(void)
 {
 	int ptr;
@@ -1274,11 +1342,19 @@ void __init s5pv210_register_clocks(void)
 	for (ptr = 0; ptr < ARRAY_SIZE(sclk_tv); ptr++)
 		s3c_register_clksrc(sclk_tv[ptr], 1);
 
+	for (ptr = 0; ptr < ARRAY_SIZE(clksrc_cdev); ptr++)
+		s3c_register_clksrc(clksrc_cdev[ptr], 1);
+
 	s3c_register_clksrc(clksrcs, ARRAY_SIZE(clksrcs));
 	s3c_register_clocks(init_clocks, ARRAY_SIZE(init_clocks));
 
 	s3c_register_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
 	s3c_disable_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
+	clkdev_add_table(s5pv210_clk_lookup, ARRAY_SIZE(s5pv210_clk_lookup));
+
+	s3c24xx_register_clocks(clk_cdev, ARRAY_SIZE(clk_cdev));
+	for (ptr = 0; ptr < ARRAY_SIZE(clk_cdev); ptr++)
+		s3c_disable_clocks(clk_cdev[ptr], 1);
 
 	s3c24xx_register_clock(&dummy_apb_pclk);
 	s3c_pwmclk_init();
diff --git a/arch/arm/mach-s5pv210/common.c b/arch/arm/mach-s5pv210/common.c
index 0ec393305d7c..9c1bcdcc12c3 100644
--- a/arch/arm/mach-s5pv210/common.c
+++ b/arch/arm/mach-s5pv210/common.c
@@ -254,28 +254,9 @@ int __init s5pv210_init(void)
 	return device_register(&s5pv210_dev);
 }
 
-static struct s3c24xx_uart_clksrc s5pv210_serial_clocks[] = {
-	[0] = {
-		.name		= "pclk",
-		.divisor	= 1,
-		.min_baud	= 0,
-		.max_baud	= 0,
-	},
-};
-
 /* uart registration process */
 
 void __init s5pv210_init_uarts(struct s3c2410_uartcfg *cfg, int no)
 {
-	struct s3c2410_uartcfg *tcfg = cfg;
-	u32 ucnt;
-
-	for (ucnt = 0; ucnt < no; ucnt++, tcfg++) {
-		if (!tcfg->clocks) {
-			tcfg->clocks = s5pv210_serial_clocks;
-			tcfg->clocks_size = ARRAY_SIZE(s5pv210_serial_clocks);
-		}
-	}
-
 	s3c24xx_init_uartdevs("s5pv210-uart", s5p_uart_resources, cfg, no);
 }
diff --git a/arch/arm/mach-s5pv210/dev-spi.c b/arch/arm/mach-s5pv210/dev-spi.c
deleted file mode 100644
index eaf9a7bff7a0..000000000000
--- a/arch/arm/mach-s5pv210/dev-spi.c
+++ /dev/null
@@ -1,175 +0,0 @@
-/* linux/arch/arm/mach-s5pv210/dev-spi.c
- *
- * Copyright (C) 2010 Samsung Electronics Co. Ltd.
- *	Jaswinder Singh <jassi.brar@samsung.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/platform_device.h>
-#include <linux/dma-mapping.h>
-#include <linux/gpio.h>
-
-#include <mach/dma.h>
-#include <mach/map.h>
-#include <mach/irqs.h>
-#include <mach/spi-clocks.h>
-
-#include <plat/s3c64xx-spi.h>
-#include <plat/gpio-cfg.h>
-
-static char *spi_src_clks[] = {
-	[S5PV210_SPI_SRCCLK_PCLK] = "pclk",
-	[S5PV210_SPI_SRCCLK_SCLK] = "sclk_spi",
-};
-
-/* SPI Controller platform_devices */
-
-/* Since we emulate multi-cs capability, we do not touch the CS.
- * The emulated CS is toggled by board specific mechanism, as it can
- * be either some immediate GPIO or some signal out of some other
- * chip in between ... or some yet another way.
- * We simply do not assume anything about CS.
- */
-static int s5pv210_spi_cfg_gpio(struct platform_device *pdev)
-{
-	unsigned int base;
-
-	switch (pdev->id) {
-	case 0:
-		base = S5PV210_GPB(0);
-		break;
-
-	case 1:
-		base = S5PV210_GPB(4);
-		break;
-
-	default:
-		dev_err(&pdev->dev, "Invalid SPI Controller number!");
-		return -EINVAL;
-	}
-
-	s3c_gpio_cfgall_range(base, 3,
-			      S3C_GPIO_SFN(2), S3C_GPIO_PULL_UP);
-
-	return 0;
-}
-
-static struct resource s5pv210_spi0_resource[] = {
-	[0] = {
-		.start = S5PV210_PA_SPI0,
-		.end   = S5PV210_PA_SPI0 + 0x100 - 1,
-		.flags = IORESOURCE_MEM,
-	},
-	[1] = {
-		.start = DMACH_SPI0_TX,
-		.end   = DMACH_SPI0_TX,
-		.flags = IORESOURCE_DMA,
-	},
-	[2] = {
-		.start = DMACH_SPI0_RX,
-		.end   = DMACH_SPI0_RX,
-		.flags = IORESOURCE_DMA,
-	},
-	[3] = {
-		.start = IRQ_SPI0,
-		.end   = IRQ_SPI0,
-		.flags = IORESOURCE_IRQ,
-	},
-};
-
-static struct s3c64xx_spi_info s5pv210_spi0_pdata = {
-	.cfg_gpio = s5pv210_spi_cfg_gpio,
-	.fifo_lvl_mask = 0x1ff,
-	.rx_lvl_offset = 15,
-	.high_speed = 1,
-	.tx_st_done = 25,
-};
-
-static u64 spi_dmamask = DMA_BIT_MASK(32);
-
-struct platform_device s5pv210_device_spi0 = {
-	.name		  = "s3c64xx-spi",
-	.id		  = 0,
-	.num_resources	  = ARRAY_SIZE(s5pv210_spi0_resource),
-	.resource	  = s5pv210_spi0_resource,
-	.dev = {
-		.dma_mask		= &spi_dmamask,
-		.coherent_dma_mask	= DMA_BIT_MASK(32),
-		.platform_data = &s5pv210_spi0_pdata,
-	},
-};
-
-static struct resource s5pv210_spi1_resource[] = {
-	[0] = {
-		.start = S5PV210_PA_SPI1,
-		.end   = S5PV210_PA_SPI1 + 0x100 - 1,
-		.flags = IORESOURCE_MEM,
-	},
-	[1] = {
-		.start = DMACH_SPI1_TX,
-		.end   = DMACH_SPI1_TX,
-		.flags = IORESOURCE_DMA,
-	},
-	[2] = {
-		.start = DMACH_SPI1_RX,
-		.end   = DMACH_SPI1_RX,
-		.flags = IORESOURCE_DMA,
-	},
-	[3] = {
-		.start = IRQ_SPI1,
-		.end   = IRQ_SPI1,
-		.flags = IORESOURCE_IRQ,
-	},
-};
-
-static struct s3c64xx_spi_info s5pv210_spi1_pdata = {
-	.cfg_gpio = s5pv210_spi_cfg_gpio,
-	.fifo_lvl_mask = 0x7f,
-	.rx_lvl_offset = 15,
-	.high_speed = 1,
-	.tx_st_done = 25,
-};
-
-struct platform_device s5pv210_device_spi1 = {
-	.name		  = "s3c64xx-spi",
-	.id		  = 1,
-	.num_resources	  = ARRAY_SIZE(s5pv210_spi1_resource),
-	.resource	  = s5pv210_spi1_resource,
-	.dev = {
-		.dma_mask		= &spi_dmamask,
-		.coherent_dma_mask	= DMA_BIT_MASK(32),
-		.platform_data = &s5pv210_spi1_pdata,
-	},
-};
-
-void __init s5pv210_spi_set_info(int cntrlr, int src_clk_nr, int num_cs)
-{
-	struct s3c64xx_spi_info *pd;
-
-	/* Reject invalid configuration */
-	if (!num_cs || src_clk_nr < 0
-			|| src_clk_nr > S5PV210_SPI_SRCCLK_SCLK) {
-		printk(KERN_ERR "%s: Invalid SPI configuration\n", __func__);
-		return;
-	}
-
-	switch (cntrlr) {
-	case 0:
-		pd = &s5pv210_spi0_pdata;
-		break;
-	case 1:
-		pd = &s5pv210_spi1_pdata;
-		break;
-	default:
-		printk(KERN_ERR "%s: Invalid SPI controller(%d)\n",
-							__func__, cntrlr);
-		return;
-	}
-
-	pd->num_cs = num_cs;
-	pd->src_clk_nr = src_clk_nr;
-	pd->src_clk_name = spi_src_clks[src_clk_nr];
-}
diff --git a/arch/arm/mach-s5pv210/dma.c b/arch/arm/mach-s5pv210/dma.c
index 86b749c18b77..a6113e0267f2 100644
--- a/arch/arm/mach-s5pv210/dma.c
+++ b/arch/arm/mach-s5pv210/dma.c
@@ -35,90 +35,40 @@
 
 static u64 dma_dmamask = DMA_BIT_MASK(32);
 
-struct dma_pl330_peri pdma0_peri[28] = {
-	{
-		.peri_id = (u8)DMACH_UART0_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_UART0_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_UART1_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_UART1_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_UART2_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_UART2_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_UART3_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_UART3_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = DMACH_MAX,
-	}, {
-		.peri_id = (u8)DMACH_I2S0_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_I2S0_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_I2S0S_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_I2S1_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_I2S1_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_MAX,
-	}, {
-		.peri_id = (u8)DMACH_MAX,
-	}, {
-		.peri_id = (u8)DMACH_SPI0_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_SPI0_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_SPI1_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_SPI1_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_MAX,
-	}, {
-		.peri_id = (u8)DMACH_MAX,
-	}, {
-		.peri_id = (u8)DMACH_AC97_MICIN,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_AC97_PCMIN,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_AC97_PCMOUT,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_MAX,
-	}, {
-		.peri_id = (u8)DMACH_PWM,
-	}, {
-		.peri_id = (u8)DMACH_SPDIF,
-		.rqtype = MEMTODEV,
-	},
+u8 pdma0_peri[] = {
+	DMACH_UART0_RX,
+	DMACH_UART0_TX,
+	DMACH_UART1_RX,
+	DMACH_UART1_TX,
+	DMACH_UART2_RX,
+	DMACH_UART2_TX,
+	DMACH_UART3_RX,
+	DMACH_UART3_TX,
+	DMACH_MAX,
+	DMACH_I2S0_RX,
+	DMACH_I2S0_TX,
+	DMACH_I2S0S_TX,
+	DMACH_I2S1_RX,
+	DMACH_I2S1_TX,
+	DMACH_MAX,
+	DMACH_MAX,
+	DMACH_SPI0_RX,
+	DMACH_SPI0_TX,
+	DMACH_SPI1_RX,
+	DMACH_SPI1_TX,
+	DMACH_MAX,
+	DMACH_MAX,
+	DMACH_AC97_MICIN,
+	DMACH_AC97_PCMIN,
+	DMACH_AC97_PCMOUT,
+	DMACH_MAX,
+	DMACH_PWM,
+	DMACH_SPDIF,
 };
 
 struct dma_pl330_platdata s5pv210_pdma0_pdata = {
 	.nr_valid_peri = ARRAY_SIZE(pdma0_peri),
-	.peri = pdma0_peri,
+	.peri_id = pdma0_peri,
 };
 
 struct amba_device s5pv210_device_pdma0 = {
@@ -137,102 +87,44 @@ struct amba_device s5pv210_device_pdma0 = {
 	.periphid = 0x00041330,
 };
 
-struct dma_pl330_peri pdma1_peri[32] = {
-	{
-		.peri_id = (u8)DMACH_UART0_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_UART0_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_UART1_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_UART1_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_UART2_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_UART2_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_UART3_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_UART3_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = DMACH_MAX,
-	}, {
-		.peri_id = (u8)DMACH_I2S0_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_I2S0_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_I2S0S_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_I2S1_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_I2S1_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_I2S2_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_I2S2_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_SPI0_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_SPI0_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_SPI1_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_SPI1_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_MAX,
-	}, {
-		.peri_id = (u8)DMACH_MAX,
-	}, {
-		.peri_id = (u8)DMACH_PCM0_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_PCM0_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_PCM1_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_PCM1_TX,
-		.rqtype = MEMTODEV,
-	}, {
-		.peri_id = (u8)DMACH_MSM_REQ0,
-	}, {
-		.peri_id = (u8)DMACH_MSM_REQ1,
-	}, {
-		.peri_id = (u8)DMACH_MSM_REQ2,
-	}, {
-		.peri_id = (u8)DMACH_MSM_REQ3,
-	}, {
-		.peri_id = (u8)DMACH_PCM2_RX,
-		.rqtype = DEVTOMEM,
-	}, {
-		.peri_id = (u8)DMACH_PCM2_TX,
-		.rqtype = MEMTODEV,
-	},
+u8 pdma1_peri[] = {
+	DMACH_UART0_RX,
+	DMACH_UART0_TX,
+	DMACH_UART1_RX,
+	DMACH_UART1_TX,
+	DMACH_UART2_RX,
+	DMACH_UART2_TX,
+	DMACH_UART3_RX,
+	DMACH_UART3_TX,
+	DMACH_MAX,
+	DMACH_I2S0_RX,
+	DMACH_I2S0_TX,
+	DMACH_I2S0S_TX,
+	DMACH_I2S1_RX,
+	DMACH_I2S1_TX,
+	DMACH_I2S2_RX,
+	DMACH_I2S2_TX,
+	DMACH_SPI0_RX,
+	DMACH_SPI0_TX,
+	DMACH_SPI1_RX,
+	DMACH_SPI1_TX,
+	DMACH_MAX,
+	DMACH_MAX,
+	DMACH_PCM0_RX,
+	DMACH_PCM0_TX,
+	DMACH_PCM1_RX,
+	DMACH_PCM1_TX,
+	DMACH_MSM_REQ0,
+	DMACH_MSM_REQ1,
+	DMACH_MSM_REQ2,
+	DMACH_MSM_REQ3,
+	DMACH_PCM2_RX,
+	DMACH_PCM2_TX,
 };
 
 struct dma_pl330_platdata s5pv210_pdma1_pdata = {
 	.nr_valid_peri = ARRAY_SIZE(pdma1_peri),
-	.peri = pdma1_peri,
+	.peri_id = pdma1_peri,
 };
 
 struct amba_device s5pv210_device_pdma1 = {
@@ -253,7 +145,12 @@ struct amba_device s5pv210_device_pdma1 = {
 
 static int __init s5pv210_dma_init(void)
 {
+	dma_cap_set(DMA_SLAVE, s5pv210_pdma0_pdata.cap_mask);
+	dma_cap_set(DMA_CYCLIC, s5pv210_pdma0_pdata.cap_mask);
 	amba_device_register(&s5pv210_device_pdma0, &iomem_resource);
+
+	dma_cap_set(DMA_SLAVE, s5pv210_pdma1_pdata.cap_mask);
+	dma_cap_set(DMA_CYCLIC, s5pv210_pdma1_pdata.cap_mask);
 	amba_device_register(&s5pv210_device_pdma1, &iomem_resource);
 
 	return 0;
diff --git a/arch/arm/mach-s5pv210/include/mach/irqs.h b/arch/arm/mach-s5pv210/include/mach/irqs.h
index 5e0de3a31f3d..e777e010ed2e 100644
--- a/arch/arm/mach-s5pv210/include/mach/irqs.h
+++ b/arch/arm/mach-s5pv210/include/mach/irqs.h
@@ -118,6 +118,8 @@
 #define IRQ_MDNIE3		S5P_IRQ_VIC3(8)
 #define IRQ_VIC_END		S5P_IRQ_VIC3(31)
 
+#define IRQ_TIMER_BASE		(11)
+
 #define S5P_EINT_BASE1		(S5P_IRQ_VIC0(0))
 #define S5P_EINT_BASE2		(IRQ_VIC_END + 1)
 
diff --git a/arch/arm/mach-s5pv210/include/mach/map.h b/arch/arm/mach-s5pv210/include/mach/map.h
index 7ff609f1568b..89c34b8f73bf 100644
--- a/arch/arm/mach-s5pv210/include/mach/map.h
+++ b/arch/arm/mach-s5pv210/include/mach/map.h
@@ -109,6 +109,8 @@
 #define S3C_PA_RTC			S5PV210_PA_RTC
 #define S3C_PA_USB_HSOTG		S5PV210_PA_HSOTG
 #define S3C_PA_WDT			S5PV210_PA_WATCHDOG
+#define S3C_PA_SPI0			S5PV210_PA_SPI0
+#define S3C_PA_SPI1			S5PV210_PA_SPI1
 
 #define S5P_PA_CHIPID			S5PV210_PA_CHIPID
 #define S5P_PA_FIMC0			S5PV210_PA_FIMC0
diff --git a/arch/arm/mach-s5pv210/mach-aquila.c b/arch/arm/mach-s5pv210/mach-aquila.c
index 6f7dfe993c12..5e734d025a6a 100644
--- a/arch/arm/mach-s5pv210/mach-aquila.c
+++ b/arch/arm/mach-s5pv210/mach-aquila.c
@@ -597,8 +597,7 @@ static struct s3c_sdhci_platdata aquila_hsmmc2_data __initdata = {
 
 static void aquila_setup_sdhci(void)
 {
-	gpio_request(AQUILA_EXT_FLASH_EN, "FLASH_EN");
-	gpio_direction_output(AQUILA_EXT_FLASH_EN, 1);
+	gpio_request_one(AQUILA_EXT_FLASH_EN, GPIOF_OUT_INIT_HIGH, "FLASH_EN");
 
 	s3c_sdhci0_set_platdata(&aquila_hsmmc0_data);
 	s3c_sdhci1_set_platdata(&aquila_hsmmc1_data);
diff --git a/arch/arm/mach-s5pv210/mach-goni.c b/arch/arm/mach-s5pv210/mach-goni.c
index 12c693717398..ff9152610439 100644
--- a/arch/arm/mach-s5pv210/mach-goni.c
+++ b/arch/arm/mach-s5pv210/mach-goni.c
@@ -229,8 +229,7 @@ static void __init goni_radio_init(void)
 	i2c1_devs[0].irq = gpio_to_irq(gpio);
 
 	gpio = S5PV210_GPJ2(5);			/* XMSMDATA_5 */
-	gpio_request(gpio, "FM_RST");
-	gpio_direction_output(gpio, 1);
+	gpio_request_one(gpio, GPIOF_OUT_INIT_HIGH, "FM_RST");
 }
 
 /* TSP */
@@ -266,8 +265,7 @@ static void __init goni_tsp_init(void)
 	int gpio;
 
 	gpio = S5PV210_GPJ1(3);		/* XMSMADDR_11 */
-	gpio_request(gpio, "TSP_LDO_ON");
-	gpio_direction_output(gpio, 1);
+	gpio_request_one(gpio, GPIOF_OUT_INIT_HIGH, "TSP_LDO_ON");
 	gpio_export(gpio, 0);
 
 	gpio = S5PV210_GPJ0(5);		/* XMSMADDR_5 */
diff --git a/arch/arm/mach-s5pv210/mach-smdkv210.c b/arch/arm/mach-s5pv210/mach-smdkv210.c
index b4021dd802a8..dff9ea7b5bba 100644
--- a/arch/arm/mach-s5pv210/mach-smdkv210.c
+++ b/arch/arm/mach-s5pv210/mach-smdkv210.c
@@ -155,15 +155,12 @@ static void smdkv210_lte480wv_set_power(struct plat_lcd_data *pd,
 {
 	if (power) {
 #if !defined(CONFIG_BACKLIGHT_PWM)
-		gpio_request(S5PV210_GPD0(3), "GPD0");
-		gpio_direction_output(S5PV210_GPD0(3), 1);
+		gpio_request_one(S5PV210_GPD0(3), GPIOF_OUT_INIT_HIGH, "GPD0");
 		gpio_free(S5PV210_GPD0(3));
 #endif
 
 		/* fire nRESET on power up */
-		gpio_request(S5PV210_GPH0(6), "GPH0");
-
-		gpio_direction_output(S5PV210_GPH0(6), 1);
+		gpio_request_one(S5PV210_GPH0(6), GPIOF_OUT_INIT_HIGH, "GPH0");
 
 		gpio_set_value(S5PV210_GPH0(6), 0);
 		mdelay(10);
@@ -174,8 +171,7 @@ static void smdkv210_lte480wv_set_power(struct plat_lcd_data *pd,
 		gpio_free(S5PV210_GPH0(6));
 	} else {
 #if !defined(CONFIG_BACKLIGHT_PWM)
-		gpio_request(S5PV210_GPD0(3), "GPD0");
-		gpio_direction_output(S5PV210_GPD0(3), 0);
+		gpio_request_one(S5PV210_GPD0(3), GPIOF_OUT_INIT_LOW, "GPD0");
 		gpio_free(S5PV210_GPD0(3));
 #endif
 	}
diff --git a/arch/arm/mach-s5pv210/setup-sdhci.c b/arch/arm/mach-s5pv210/setup-sdhci.c
deleted file mode 100644
index 6b8ccc4d35fd..000000000000
--- a/arch/arm/mach-s5pv210/setup-sdhci.c
+++ /dev/null
@@ -1,22 +0,0 @@
-/* linux/arch/arm/mach-s5pv210/setup-sdhci.c
- *
- * Copyright (c) 2009-2010 Samsung Electronics Co., Ltd.
- *		http://www.samsung.com/
- *
- * S5PV210 - Helper functions for settign up SDHCI device(s) (HSMMC)
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
-*/
-
-#include <linux/types.h>
-
-/* clock sources for the mmc bus clock, order as for the ctrl2[5..4] */
-
-char *s5pv210_hsmmc_clksrcs[4] = {
-	[0] = "hsmmc",		/* HCLK */
-	/* [1] = "hsmmc",	- duplicate HCLK entry */
-	[2] = "sclk_mmc",	/* mmc_bus */
-	/* [3] = NULL,		- reserved */
-};
diff --git a/arch/arm/mach-s5pv210/setup-spi.c b/arch/arm/mach-s5pv210/setup-spi.c
new file mode 100644
index 000000000000..f43c5048a37d
--- /dev/null
+++ b/arch/arm/mach-s5pv210/setup-spi.c
@@ -0,0 +1,51 @@
+/* linux/arch/arm/mach-s5pv210/setup-spi.c
+ *
+ * Copyright (C) 2011 Samsung Electronics Ltd.
+ *		http://www.samsung.com/
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/gpio.h>
+#include <linux/platform_device.h>
+
+#include <plat/gpio-cfg.h>
+#include <plat/s3c64xx-spi.h>
+
+#ifdef CONFIG_S3C64XX_DEV_SPI0
+struct s3c64xx_spi_info s3c64xx_spi0_pdata = {
+	.fifo_lvl_mask	= 0x1ff,
+	.rx_lvl_offset	= 15,
+	.high_speed	= 1,
+	.tx_st_done	= 25,
+};
+
+int s3c64xx_spi0_cfg_gpio(struct platform_device *dev)
+{
+	s3c_gpio_cfgpin(S5PV210_GPB(0), S3C_GPIO_SFN(2));
+	s3c_gpio_setpull(S5PV210_GPB(0), S3C_GPIO_PULL_UP);
+	s3c_gpio_cfgall_range(S5PV210_GPB(2), 2,
+				S3C_GPIO_SFN(2), S3C_GPIO_PULL_UP);
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_S3C64XX_DEV_SPI1
+struct s3c64xx_spi_info s3c64xx_spi1_pdata = {
+	.fifo_lvl_mask	= 0x7f,
+	.rx_lvl_offset	= 15,
+	.high_speed	= 1,
+	.tx_st_done	= 25,
+};
+
+int s3c64xx_spi1_cfg_gpio(struct platform_device *dev)
+{
+	s3c_gpio_cfgpin(S5PV210_GPB(4), S3C_GPIO_SFN(2));
+	s3c_gpio_setpull(S5PV210_GPB(4), S3C_GPIO_PULL_UP);
+	s3c_gpio_cfgall_range(S5PV210_GPB(6), 2,
+				S3C_GPIO_SFN(2), S3C_GPIO_PULL_UP);
+	return 0;
+}
+#endif
diff --git a/arch/arm/mach-sa1100/clock.c b/arch/arm/mach-sa1100/clock.c
index dab3c6347a8f..d6df9f6c9f7e 100644
--- a/arch/arm/mach-sa1100/clock.c
+++ b/arch/arm/mach-sa1100/clock.c
@@ -11,17 +11,39 @@
 #include <linux/clk.h>
 #include <linux/spinlock.h>
 #include <linux/mutex.h>
+#include <linux/io.h>
+#include <linux/clkdev.h>
 
 #include <mach/hardware.h>
 
-/*
- * Very simple clock implementation - we only have one clock to deal with.
- */
+struct clkops {
+	void			(*enable)(struct clk *);
+	void			(*disable)(struct clk *);
+	unsigned long		(*getrate)(struct clk *);
+};
+
 struct clk {
+	const struct clkops	*ops;
+	unsigned long		rate;
 	unsigned int		enabled;
 };
 
-static void clk_gpio27_enable(void)
+#define INIT_CLKREG(_clk, _devname, _conname)		\
+	{						\
+		.clk		= _clk,			\
+		.dev_id		= _devname,		\
+		.con_id		= _conname,		\
+	}
+
+#define DEFINE_CLK(_name, _ops, _rate)			\
+struct clk clk_##_name = {				\
+		.ops	= _ops,				\
+		.rate	= _rate,			\
+	}
+
+static DEFINE_SPINLOCK(clocks_lock);
+
+static void clk_gpio27_enable(struct clk *clk)
 {
 	/*
 	 * First, set up the 3.6864MHz clock on GPIO 27 for the SA-1111:
@@ -32,38 +54,22 @@ static void clk_gpio27_enable(void)
 	TUCR = TUCR_3_6864MHz;
 }
 
-static void clk_gpio27_disable(void)
+static void clk_gpio27_disable(struct clk *clk)
 {
 	TUCR = 0;
 	GPDR &= ~GPIO_32_768kHz;
 	GAFR &= ~GPIO_32_768kHz;
 }
 
-static struct clk clk_gpio27;
-
-static DEFINE_SPINLOCK(clocks_lock);
-
-struct clk *clk_get(struct device *dev, const char *id)
-{
-	const char *devname = dev_name(dev);
-
-	return strcmp(devname, "sa1111.0") ? ERR_PTR(-ENOENT) : &clk_gpio27;
-}
-EXPORT_SYMBOL(clk_get);
-
-void clk_put(struct clk *clk)
-{
-}
-EXPORT_SYMBOL(clk_put);
-
 int clk_enable(struct clk *clk)
 {
 	unsigned long flags;
 
 	spin_lock_irqsave(&clocks_lock, flags);
 	if (clk->enabled++ == 0)
-		clk_gpio27_enable();
+		clk->ops->enable(clk);
 	spin_unlock_irqrestore(&clocks_lock, flags);
+
 	return 0;
 }
 EXPORT_SYMBOL(clk_enable);
@@ -76,13 +82,48 @@ void clk_disable(struct clk *clk)
 
 	spin_lock_irqsave(&clocks_lock, flags);
 	if (--clk->enabled == 0)
-		clk_gpio27_disable();
+		clk->ops->disable(clk);
 	spin_unlock_irqrestore(&clocks_lock, flags);
 }
 EXPORT_SYMBOL(clk_disable);
 
 unsigned long clk_get_rate(struct clk *clk)
 {
-	return 3686400;
+	unsigned long rate;
+
+	rate = clk->rate;
+	if (clk->ops->getrate)
+		rate = clk->ops->getrate(clk);
+
+	return rate;
 }
 EXPORT_SYMBOL(clk_get_rate);
+
+const struct clkops clk_gpio27_ops = {
+	.enable		= clk_gpio27_enable,
+	.disable	= clk_gpio27_disable,
+};
+
+static void clk_dummy_enable(struct clk *clk) { }
+static void clk_dummy_disable(struct clk *clk) { }
+
+const struct clkops clk_dummy_ops = {
+	.enable		= clk_dummy_enable,
+	.disable	= clk_dummy_disable,
+};
+
+static DEFINE_CLK(gpio27, &clk_gpio27_ops, 3686400);
+static DEFINE_CLK(dummy, &clk_dummy_ops, 0);
+
+static struct clk_lookup sa11xx_clkregs[] = {
+	INIT_CLKREG(&clk_gpio27, "sa1111.0", NULL),
+	INIT_CLKREG(&clk_dummy, "sa1100-rtc", NULL),
+};
+
+static int __init sa11xx_clk_init(void)
+{
+	clkdev_add_table(sa11xx_clkregs, ARRAY_SIZE(sa11xx_clkregs));
+	return 0;
+}
+
+postcore_initcall(sa11xx_clk_init);
diff --git a/arch/arm/mach-sa1100/generic.c b/arch/arm/mach-sa1100/generic.c
index bb10ee2cb89f..480d2ea46b00 100644
--- a/arch/arm/mach-sa1100/generic.c
+++ b/arch/arm/mach-sa1100/generic.c
@@ -345,9 +345,29 @@ void sa11x0_register_irda(struct irda_platform_data *irda)
 	sa11x0_register_device(&sa11x0ir_device, irda);
 }
 
+static struct resource sa11x0rtc_resources[] = {
+	[0] = {
+		.start	= 0x90010000,
+		.end	= 0x900100ff,
+		.flags	= IORESOURCE_MEM,
+	},
+	[1] = {
+		.start	= IRQ_RTC1Hz,
+		.end	= IRQ_RTC1Hz,
+		.flags	= IORESOURCE_IRQ,
+	},
+	[2] = {
+		.start	= IRQ_RTCAlrm,
+		.end	= IRQ_RTCAlrm,
+		.flags	= IORESOURCE_IRQ,
+	},
+};
+
 static struct platform_device sa11x0rtc_device = {
 	.name		= "sa1100-rtc",
 	.id		= -1,
+	.resource	= sa11x0rtc_resources,
+	.num_resources	= ARRAY_SIZE(sa11x0rtc_resources),
 };
 
 static struct platform_device *sa11x0_devices[] __initdata = {
diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig
index 91aff7cb8284..373652d76b90 100644
--- a/arch/arm/mach-tegra/Kconfig
+++ b/arch/arm/mach-tegra/Kconfig
@@ -2,11 +2,8 @@ if ARCH_TEGRA
 
 comment "NVIDIA Tegra options"
 
-choice
-	prompt "Select Tegra processor family for target system"
-
 config ARCH_TEGRA_2x_SOC
-	bool "Tegra 2 family"
+	bool "Enable support for Tegra20 family"
 	select CPU_V7
 	select ARM_GIC
 	select ARCH_REQUIRE_GPIOLIB
@@ -17,22 +14,36 @@ config ARCH_TEGRA_2x_SOC
 	  Support for NVIDIA Tegra AP20 and T20 processors, based on the
 	  ARM CortexA9MP CPU and the ARM PL310 L2 cache controller
 
-endchoice
+config ARCH_TEGRA_3x_SOC
+	bool "Enable support for Tegra30 family"
+	select CPU_V7
+	select ARM_GIC
+	select ARCH_REQUIRE_GPIOLIB
+	select USB_ARCH_HAS_EHCI if USB_SUPPORT
+	select USB_ULPI if USB_SUPPORT
+	select USB_ULPI_VIEWPORT if USB_SUPPORT
+	select USE_OF
+	help
+	  Support for NVIDIA Tegra T30 processor family, based on the
+	  ARM CortexA9MP CPU and the ARM PL310 L2 cache controller
 
 config TEGRA_PCI
 	bool "PCI Express support"
+	depends on ARCH_TEGRA_2x_SOC
 	select PCI
 
 comment "Tegra board type"
 
 config MACH_HARMONY
        bool "Harmony board"
+       depends on ARCH_TEGRA_2x_SOC
        select MACH_HAS_SND_SOC_TEGRA_WM8903 if SND_SOC
        help
          Support for nVidia Harmony development platform
 
 config MACH_KAEN
        bool "Kaen board"
+       depends on ARCH_TEGRA_2x_SOC
        select MACH_SEABOARD
        select MACH_HAS_SND_SOC_TEGRA_WM8903 if SND_SOC
        help
@@ -40,11 +51,13 @@ config MACH_KAEN
 
 config MACH_PAZ00
        bool "Paz00 board"
+       depends on ARCH_TEGRA_2x_SOC
        help
          Support for the Toshiba AC100/Dynabook AZ netbook
 
 config MACH_SEABOARD
        bool "Seaboard board"
+       depends on ARCH_TEGRA_2x_SOC
        select MACH_HAS_SND_SOC_TEGRA_WM8903 if SND_SOC
        help
          Support for nVidia Seaboard development platform. It will
@@ -52,25 +65,29 @@ config MACH_SEABOARD
 	 have large similarities with the seaboard design.
 
 config MACH_TEGRA_DT
-	bool "Generic Tegra board (FDT support)"
+	bool "Generic Tegra20 board (FDT support)"
+	depends on ARCH_TEGRA_2x_SOC
 	select USE_OF
 	help
-	  Support for generic nVidia Tegra boards using Flattened Device Tree
+	  Support for generic NVIDIA Tegra20 boards using Flattened Device Tree
 
 config MACH_TRIMSLICE
        bool "TrimSlice board"
+       depends on ARCH_TEGRA_2x_SOC
        select TEGRA_PCI
        help
          Support for CompuLab TrimSlice platform
 
 config MACH_WARIO
        bool "Wario board"
+       depends on ARCH_TEGRA_2x_SOC
        select MACH_SEABOARD
        help
          Support for the Wario version of Seaboard
 
 config MACH_VENTANA
        bool "Ventana board"
+       depends on ARCH_TEGRA_2x_SOC
        select MACH_TEGRA_DT
        help
          Support for the nVidia Ventana development platform
diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile
index 91a07e187208..e120ff54f663 100644
--- a/arch/arm/mach-tegra/Makefile
+++ b/arch/arm/mach-tegra/Makefile
@@ -1,3 +1,4 @@
+obj-y                                   += board-pinmux.o
 obj-y                                   += common.o
 obj-y                                   += devices.o
 obj-y                                   += io.o
@@ -5,12 +6,13 @@ obj-y                                   += irq.o
 obj-y                                   += clock.o
 obj-y                                   += timer.o
 obj-y                                   += pinmux.o
-obj-y                                   += powergate.o
 obj-y					+= fuse.o
-obj-$(CONFIG_ARCH_TEGRA_2x_SOC)         += clock.o
+obj-$(CONFIG_ARCH_TEGRA_2x_SOC)		+= powergate.o
 obj-$(CONFIG_ARCH_TEGRA_2x_SOC)         += tegra2_clocks.o
 obj-$(CONFIG_ARCH_TEGRA_2x_SOC)		+= tegra2_emc.o
-obj-$(CONFIG_ARCH_TEGRA_2x_SOC)		+= pinmux-t2-tables.o
+obj-$(CONFIG_ARCH_TEGRA_2x_SOC)		+= pinmux-tegra20-tables.o
+obj-$(CONFIG_ARCH_TEGRA_3x_SOC)		+= pinmux-tegra30-tables.o
+obj-$(CONFIG_ARCH_TEGRA_3x_SOC)		+= board-dt-tegra30.o
 obj-$(CONFIG_SMP)                       += platsmp.o localtimer.o headsmp.o
 obj-$(CONFIG_HOTPLUG_CPU)               += hotplug.o
 obj-$(CONFIG_TEGRA_SYSTEM_DMA)		+= dma.o
@@ -18,20 +20,22 @@ obj-$(CONFIG_CPU_FREQ)                  += cpu-tegra.o
 obj-$(CONFIG_TEGRA_PCI)			+= pcie.o
 obj-$(CONFIG_USB_SUPPORT)		+= usb_phy.o
 
-obj-${CONFIG_MACH_HARMONY}              += board-harmony.o
-obj-${CONFIG_MACH_HARMONY}              += board-harmony-pinmux.o
-obj-${CONFIG_MACH_HARMONY}              += board-harmony-pcie.o
-obj-${CONFIG_MACH_HARMONY}              += board-harmony-power.o
+obj-$(CONFIG_MACH_HARMONY)              += board-harmony.o
+obj-$(CONFIG_MACH_HARMONY)              += board-harmony-pinmux.o
+obj-$(CONFIG_MACH_HARMONY)              += board-harmony-pcie.o
+obj-$(CONFIG_MACH_HARMONY)              += board-harmony-power.o
 
-obj-${CONFIG_MACH_PAZ00}		+= board-paz00.o
-obj-${CONFIG_MACH_PAZ00}		+= board-paz00-pinmux.o
+obj-$(CONFIG_MACH_PAZ00)		+= board-paz00.o
+obj-$(CONFIG_MACH_PAZ00)		+= board-paz00-pinmux.o
 
-obj-${CONFIG_MACH_SEABOARD}             += board-seaboard.o
-obj-${CONFIG_MACH_SEABOARD}             += board-seaboard-pinmux.o
+obj-$(CONFIG_MACH_SEABOARD)             += board-seaboard.o
+obj-$(CONFIG_MACH_SEABOARD)             += board-seaboard-pinmux.o
 
-obj-${CONFIG_MACH_TEGRA_DT}             += board-dt.o
-obj-${CONFIG_MACH_TEGRA_DT}             += board-harmony-pinmux.o
-obj-${CONFIG_MACH_TEGRA_DT}             += board-seaboard-pinmux.o
+obj-$(CONFIG_MACH_TEGRA_DT)             += board-dt-tegra20.o
+obj-$(CONFIG_MACH_TEGRA_DT)             += board-harmony-pinmux.o
+obj-$(CONFIG_MACH_TEGRA_DT)             += board-seaboard-pinmux.o
+obj-$(CONFIG_MACH_TEGRA_DT)             += board-paz00-pinmux.o
+obj-$(CONFIG_MACH_TEGRA_DT)             += board-trimslice-pinmux.o
 
-obj-${CONFIG_MACH_TRIMSLICE}            += board-trimslice.o
-obj-${CONFIG_MACH_TRIMSLICE}            += board-trimslice-pinmux.o
+obj-$(CONFIG_MACH_TRIMSLICE)            += board-trimslice.o
+obj-$(CONFIG_MACH_TRIMSLICE)            += board-trimslice-pinmux.o
diff --git a/arch/arm/mach-tegra/Makefile.boot b/arch/arm/mach-tegra/Makefile.boot
index bd12c9fb81e8..9a82094092d7 100644
--- a/arch/arm/mach-tegra/Makefile.boot
+++ b/arch/arm/mach-tegra/Makefile.boot
@@ -3,5 +3,8 @@ params_phys-$(CONFIG_ARCH_TEGRA_2x_SOC)	:= 0x00000100
 initrd_phys-$(CONFIG_ARCH_TEGRA_2x_SOC)	:= 0x00800000
 
 dtb-$(CONFIG_MACH_HARMONY) += tegra-harmony.dtb
+dtb-$(CONFIG_MACH_PAZ00) += tegra-paz00.dtb
 dtb-$(CONFIG_MACH_SEABOARD) += tegra-seaboard.dtb
+dtb-$(CONFIG_MACH_TRIMSLICE) += tegra-trimslice.dtb
 dtb-$(CONFIG_MACH_VENTANA) += tegra-ventana.dtb
+dtb-$(CONFIG_ARCH_TEGRA_3x_SOC) += tegra-cardhu.dtb
diff --git a/arch/arm/mach-tegra/board-dt.c b/arch/arm/mach-tegra/board-dt-tegra20.c
index e417a8383dbb..7a95e0bc4aba 100644
--- a/arch/arm/mach-tegra/board-dt.c
+++ b/arch/arm/mach-tegra/board-dt-tegra20.c
@@ -37,6 +37,7 @@
 #include <asm/mach/arch.h>
 #include <asm/mach/time.h>
 #include <asm/setup.h>
+#include <asm/hardware/gic.h>
 
 #include <mach/iomap.h>
 #include <mach/irqs.h>
@@ -47,10 +48,14 @@
 #include "devices.h"
 
 void harmony_pinmux_init(void);
+void paz00_pinmux_init(void);
 void seaboard_pinmux_init(void);
+void trimslice_pinmux_init(void);
 void ventana_pinmux_init(void);
 
 struct of_dev_auxdata tegra20_auxdata_lookup[] __initdata = {
+	OF_DEV_AUXDATA("nvidia,tegra20-pinmux", TEGRA_APB_MISC_BASE + 0x14, "tegra-pinmux", NULL),
+	OF_DEV_AUXDATA("nvidia,tegra20-gpio", TEGRA_GPIO_BASE, "tegra-gpio", NULL),
 	OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC1_BASE, "sdhci-tegra.0", NULL),
 	OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC2_BASE, "sdhci-tegra.1", NULL),
 	OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC3_BASE, "sdhci-tegra.2", NULL),
@@ -58,16 +63,30 @@ struct of_dev_auxdata tegra20_auxdata_lookup[] __initdata = {
 	OF_DEV_AUXDATA("nvidia,tegra20-i2c", TEGRA_I2C_BASE, "tegra-i2c.0", NULL),
 	OF_DEV_AUXDATA("nvidia,tegra20-i2c", TEGRA_I2C2_BASE, "tegra-i2c.1", NULL),
 	OF_DEV_AUXDATA("nvidia,tegra20-i2c", TEGRA_I2C3_BASE, "tegra-i2c.2", NULL),
-	OF_DEV_AUXDATA("nvidia,tegra20-i2c", TEGRA_DVC_BASE, "tegra-i2c.3", NULL),
+	OF_DEV_AUXDATA("nvidia,tegra20-i2c-dvc", TEGRA_DVC_BASE, "tegra-i2c.3", NULL),
 	OF_DEV_AUXDATA("nvidia,tegra20-i2s", TEGRA_I2S1_BASE, "tegra-i2s.0", NULL),
-	OF_DEV_AUXDATA("nvidia,tegra20-i2s", TEGRA_I2S1_BASE, "tegra-i2s.1", NULL),
+	OF_DEV_AUXDATA("nvidia,tegra20-i2s", TEGRA_I2S2_BASE, "tegra-i2s.1", NULL),
 	OF_DEV_AUXDATA("nvidia,tegra20-das", TEGRA_APB_MISC_DAS_BASE, "tegra-das", NULL),
+	OF_DEV_AUXDATA("nvidia,tegra20-ehci", TEGRA_USB_BASE, "tegra-ehci.0",
+		       &tegra_ehci1_device.dev.platform_data),
+	OF_DEV_AUXDATA("nvidia,tegra20-ehci", TEGRA_USB2_BASE, "tegra-ehci.1",
+		       &tegra_ehci2_device.dev.platform_data),
+	OF_DEV_AUXDATA("nvidia,tegra20-ehci", TEGRA_USB3_BASE, "tegra-ehci.2",
+		       &tegra_ehci3_device.dev.platform_data),
 	{}
 };
 
 static __initdata struct tegra_clk_init_table tegra_dt_clk_init_table[] = {
 	/* name		parent		rate		enabled */
 	{ "uartd",	"pll_p",	216000000,	true },
+	{ "usbd",	"clk_m",	12000000,	false },
+	{ "usb2",	"clk_m",	12000000,	false },
+	{ "usb3",	"clk_m",	12000000,	false },
+	{ "pll_a",      "pll_p_out1",   56448000,       true },
+	{ "pll_a_out0", "pll_a",        11289600,       true },
+	{ "cdev1",      NULL,           0,              true },
+	{ "i2s1",       "pll_a_out0",   11289600,       false},
+	{ "i2s2",       "pll_a_out0",   11289600,       false},
 	{ NULL,		NULL,		0,		0},
 };
 
@@ -76,39 +95,23 @@ static struct of_device_id tegra_dt_match_table[] __initdata = {
 	{}
 };
 
-static struct of_device_id tegra_dt_gic_match[] __initdata = {
-	{ .compatible = "nvidia,tegra20-gic", },
-	{}
-};
-
 static struct {
 	char *machine;
 	void (*init)(void);
 } pinmux_configs[] = {
+	{ "compulab,trimslice", trimslice_pinmux_init },
 	{ "nvidia,harmony", harmony_pinmux_init },
+	{ "compal,paz00", paz00_pinmux_init },
 	{ "nvidia,seaboard", seaboard_pinmux_init },
 	{ "nvidia,ventana", ventana_pinmux_init },
 };
 
 static void __init tegra_dt_init(void)
 {
-	struct device_node *node;
 	int i;
 
-	node = of_find_matching_node_by_address(NULL, tegra_dt_gic_match,
-						TEGRA_ARM_INT_DIST_BASE);
-	if (node)
-		irq_domain_add_simple(node, INT_GIC_BASE);
-
 	tegra_clk_init_from_table(tegra_dt_clk_init_table);
 
-	/*
-	 * Finished with the static registrations now; fill in the missing
-	 * devices
-	 */
-	of_platform_populate(NULL, tegra_dt_match_table,
-				tegra20_auxdata_lookup, NULL);
-
 	for (i = 0; i < ARRAY_SIZE(pinmux_configs); i++) {
 		if (of_machine_is_compatible(pinmux_configs[i].machine)) {
 			pinmux_configs[i].init();
@@ -118,22 +121,31 @@ static void __init tegra_dt_init(void)
 
 	WARN(i == ARRAY_SIZE(pinmux_configs),
 		"Unknown platform! Pinmuxing not initialized\n");
+
+	/*
+	 * Finished with the static registrations now; fill in the missing
+	 * devices
+	 */
+	of_platform_populate(NULL, tegra_dt_match_table,
+				tegra20_auxdata_lookup, NULL);
 }
 
-static const char * tegra_dt_board_compat[] = {
+static const char *tegra20_dt_board_compat[] = {
+	"compulab,trimslice",
 	"nvidia,harmony",
+	"compal,paz00",
 	"nvidia,seaboard",
 	"nvidia,ventana",
 	NULL
 };
 
-DT_MACHINE_START(TEGRA_DT, "nVidia Tegra (Flattened Device Tree)")
+DT_MACHINE_START(TEGRA_DT, "nVidia Tegra20 (Flattened Device Tree)")
 	.map_io		= tegra_map_common_io,
-	.init_early	= tegra_init_early,
-	.init_irq	= tegra_init_irq,
+	.init_early	= tegra20_init_early,
+	.init_irq	= tegra_dt_init_irq,
 	.handle_irq	= gic_handle_irq,
 	.timer		= &tegra_timer,
 	.init_machine	= tegra_dt_init,
 	.restart	= tegra_assert_system_reset,
-	.dt_compat	= tegra_dt_board_compat,
+	.dt_compat	= tegra20_dt_board_compat,
 MACHINE_END
diff --git a/arch/arm/mach-tegra/board-dt-tegra30.c b/arch/arm/mach-tegra/board-dt-tegra30.c
new file mode 100644
index 000000000000..3c197e2440b7
--- /dev/null
+++ b/arch/arm/mach-tegra/board-dt-tegra30.c
@@ -0,0 +1,63 @@
+/*
+ * arch/arm/mach-tegra/board-dt-tegra30.c
+ *
+ * NVIDIA Tegra30 device tree board support
+ *
+ * Copyright (C) 2011 NVIDIA Corporation
+ *
+ * Derived from:
+ *
+ * arch/arm/mach-tegra/board-dt-tegra20.c
+ *
+ * Copyright (C) 2010 Secret Lab Technologies, Ltd.
+ * Copyright (C) 2010 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_fdt.h>
+#include <linux/of_irq.h>
+#include <linux/of_platform.h>
+
+#include <asm/mach/arch.h>
+#include <asm/hardware/gic.h>
+
+#include "board.h"
+
+static struct of_device_id tegra_dt_match_table[] __initdata = {
+	{ .compatible = "simple-bus", },
+	{}
+};
+
+static void __init tegra30_dt_init(void)
+{
+	of_platform_populate(NULL, tegra_dt_match_table,
+				NULL, NULL);
+}
+
+static const char *tegra30_dt_board_compat[] = {
+	"nvidia,cardhu",
+	NULL
+};
+
+DT_MACHINE_START(TEGRA30_DT, "NVIDIA Tegra30 (Flattened Device Tree)")
+	.map_io		= tegra_map_common_io,
+	.init_early	= tegra30_init_early,
+	.init_irq	= tegra_dt_init_irq,
+	.handle_irq	= gic_handle_irq,
+	.timer		= &tegra_timer,
+	.init_machine	= tegra30_dt_init,
+	.restart	= tegra_assert_system_reset,
+	.dt_compat	= tegra30_dt_board_compat,
+MACHINE_END
diff --git a/arch/arm/mach-tegra/board-harmony-pcie.c b/arch/arm/mach-tegra/board-harmony-pcie.c
index 6db7d699ef1c..33c4fedab840 100644
--- a/arch/arm/mach-tegra/board-harmony-pcie.c
+++ b/arch/arm/mach-tegra/board-harmony-pcie.c
@@ -22,7 +22,6 @@
 
 #include <asm/mach-types.h>
 
-#include <mach/pinmux.h>
 #include "board.h"
 #include "board-harmony.h"
 
@@ -48,10 +47,6 @@ static int __init harmony_pcie_init(void)
 
 	regulator_enable(regulator);
 
-	tegra_pinmux_set_tristate(TEGRA_PINGROUP_GPV, TEGRA_TRI_NORMAL);
-	tegra_pinmux_set_tristate(TEGRA_PINGROUP_SLXA, TEGRA_TRI_NORMAL);
-	tegra_pinmux_set_tristate(TEGRA_PINGROUP_SLXK, TEGRA_TRI_NORMAL);
-
 	err = tegra_pcie_init(true, true);
 	if (err)
 		goto err_pcie;
@@ -59,10 +54,6 @@ static int __init harmony_pcie_init(void)
 	return 0;
 
 err_pcie:
-	tegra_pinmux_set_tristate(TEGRA_PINGROUP_GPV, TEGRA_TRI_TRISTATE);
-	tegra_pinmux_set_tristate(TEGRA_PINGROUP_SLXA, TEGRA_TRI_TRISTATE);
-	tegra_pinmux_set_tristate(TEGRA_PINGROUP_SLXK, TEGRA_TRI_TRISTATE);
-
 	regulator_disable(regulator);
 	regulator_put(regulator);
 err_reg:
diff --git a/arch/arm/mach-tegra/board-harmony-pinmux.c b/arch/arm/mach-tegra/board-harmony-pinmux.c
index 7a4a26d5174c..465808c8ac0b 100644
--- a/arch/arm/mach-tegra/board-harmony-pinmux.c
+++ b/arch/arm/mach-tegra/board-harmony-pinmux.c
@@ -19,10 +19,11 @@
 #include <linux/of.h>
 
 #include <mach/pinmux.h>
+#include <mach/pinmux-tegra20.h>
 
 #include "gpio-names.h"
 #include "board-harmony.h"
-#include "devices.h"
+#include "board-pinmux.h"
 
 static struct tegra_pingroup_config harmony_pinmux[] = {
 	{TEGRA_PINGROUP_ATA,   TEGRA_MUX_IDE,           TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
@@ -143,11 +144,6 @@ static struct tegra_pingroup_config harmony_pinmux[] = {
 	{TEGRA_PINGROUP_XM2D,  TEGRA_MUX_NONE,          TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 };
 
-static struct platform_device *pinmux_devices[] = {
-	&tegra_gpio_device,
-	&tegra_pinmux_device,
-};
-
 static struct tegra_gpio_table gpio_table[] = {
 	{ .gpio = TEGRA_GPIO_SD2_CD,		.enable = true	},
 	{ .gpio = TEGRA_GPIO_SD2_WP,		.enable = true	},
@@ -161,13 +157,14 @@ static struct tegra_gpio_table gpio_table[] = {
 	{ .gpio = TEGRA_GPIO_EXT_MIC_EN,	.enable = true	},
 };
 
+static struct tegra_board_pinmux_conf conf = {
+	.pgs = harmony_pinmux,
+	.pg_count = ARRAY_SIZE(harmony_pinmux),
+	.gpios = gpio_table,
+	.gpio_count = ARRAY_SIZE(gpio_table),
+};
+
 void harmony_pinmux_init(void)
 {
-	if (!of_machine_is_compatible("nvidia,tegra20"))
-		platform_add_devices(pinmux_devices,
-					ARRAY_SIZE(pinmux_devices));
-
-	tegra_pinmux_config_table(harmony_pinmux, ARRAY_SIZE(harmony_pinmux));
-
-	tegra_gpio_config(gpio_table, ARRAY_SIZE(gpio_table));
+	tegra_board_pinmux_init(&conf, NULL);
 }
diff --git a/arch/arm/mach-tegra/board-harmony.c b/arch/arm/mach-tegra/board-harmony.c
index 70ee674131f9..a0f9634f6727 100644
--- a/arch/arm/mach-tegra/board-harmony.c
+++ b/arch/arm/mach-tegra/board-harmony.c
@@ -186,7 +186,7 @@ MACHINE_START(HARMONY, "harmony")
 	.atag_offset	= 0x100,
 	.fixup		= tegra_harmony_fixup,
 	.map_io         = tegra_map_common_io,
-	.init_early	= tegra_init_early,
+	.init_early	= tegra20_init_early,
 	.init_irq       = tegra_init_irq,
 	.handle_irq	= gic_handle_irq,
 	.timer          = &tegra_timer,
diff --git a/arch/arm/mach-tegra/board-paz00-pinmux.c b/arch/arm/mach-tegra/board-paz00-pinmux.c
index be30e215f4b7..c775572dcea4 100644
--- a/arch/arm/mach-tegra/board-paz00-pinmux.c
+++ b/arch/arm/mach-tegra/board-paz00-pinmux.c
@@ -19,10 +19,11 @@
 #include <linux/of.h>
 
 #include <mach/pinmux.h>
+#include <mach/pinmux-tegra20.h>
 
 #include "gpio-names.h"
 #include "board-paz00.h"
-#include "devices.h"
+#include "board-pinmux.h"
 
 static struct tegra_pingroup_config paz00_pinmux[] = {
 	{TEGRA_PINGROUP_ATA,   TEGRA_MUX_GMI,           TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
@@ -30,7 +31,7 @@ static struct tegra_pingroup_config paz00_pinmux[] = {
 	{TEGRA_PINGROUP_ATC,   TEGRA_MUX_GMI,           TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_ATD,   TEGRA_MUX_GMI,           TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_ATE,   TEGRA_MUX_GMI,           TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
-	{TEGRA_PINGROUP_CDEV1, TEGRA_MUX_PLLA_OUT,      TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_TRISTATE},
+	{TEGRA_PINGROUP_CDEV1, TEGRA_MUX_PLLA_OUT,      TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_CDEV2, TEGRA_MUX_PLLP_OUT4,     TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_CRTP,  TEGRA_MUX_CRT,           TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
 	{TEGRA_PINGROUP_CSUS,  TEGRA_MUX_PLLC_OUT1,     TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_TRISTATE},
@@ -143,11 +144,6 @@ static struct tegra_pingroup_config paz00_pinmux[] = {
 	{TEGRA_PINGROUP_XM2D,  TEGRA_MUX_NONE,          TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 };
 
-static struct platform_device *pinmux_devices[] = {
-	&tegra_gpio_device,
-	&tegra_pinmux_device,
-};
-
 static struct tegra_gpio_table gpio_table[] = {
 	{ .gpio = TEGRA_GPIO_SD1_CD,	.enable = true },
 	{ .gpio = TEGRA_GPIO_SD1_WP,	.enable = true },
@@ -158,13 +154,14 @@ static struct tegra_gpio_table gpio_table[] = {
 	{ .gpio = TEGRA_WIFI_LED,	.enable = true },
 };
 
+static struct tegra_board_pinmux_conf conf = {
+	.pgs = paz00_pinmux,
+	.pg_count = ARRAY_SIZE(paz00_pinmux),
+	.gpios = gpio_table,
+	.gpio_count = ARRAY_SIZE(gpio_table),
+};
+
 void paz00_pinmux_init(void)
 {
-	if (!of_machine_is_compatible("nvidia,tegra20"))
-		platform_add_devices(pinmux_devices,
-					ARRAY_SIZE(pinmux_devices));
-
-	tegra_pinmux_config_table(paz00_pinmux, ARRAY_SIZE(paz00_pinmux));
-
-	tegra_gpio_config(gpio_table, ARRAY_SIZE(gpio_table));
+	tegra_board_pinmux_init(&conf, NULL);
 }
diff --git a/arch/arm/mach-tegra/board-paz00.c b/arch/arm/mach-tegra/board-paz00.c
index 33d6205ad307..fcf4f377b1dc 100644
--- a/arch/arm/mach-tegra/board-paz00.c
+++ b/arch/arm/mach-tegra/board-paz00.c
@@ -23,8 +23,10 @@
 #include <linux/serial_8250.h>
 #include <linux/clk.h>
 #include <linux/dma-mapping.h>
+#include <linux/gpio_keys.h>
 #include <linux/pda_power.h>
 #include <linux/io.h>
+#include <linux/input.h>
 #include <linux/i2c.h>
 #include <linux/gpio.h>
 #include <linux/rfkill-gpio.h>
@@ -115,12 +117,37 @@ static struct platform_device leds_gpio = {
         },
 };
 
+static struct gpio_keys_button paz00_gpio_keys_buttons[] = {
+	{
+		.code		= KEY_POWER,
+		.gpio		= TEGRA_GPIO_POWERKEY,
+		.active_low	= 1,
+		.desc		= "Power",
+		.type		= EV_KEY,
+		.wakeup		= 1,
+	},
+};
+
+static struct gpio_keys_platform_data paz00_gpio_keys = {
+	.buttons	= paz00_gpio_keys_buttons,
+	.nbuttons	= ARRAY_SIZE(paz00_gpio_keys_buttons),
+};
+
+static struct platform_device gpio_keys_device = {
+	.name	= "gpio-keys",
+	.id	= -1,
+	.dev	= {
+		.platform_data = &paz00_gpio_keys,
+	},
+};
+
 static struct platform_device *paz00_devices[] __initdata = {
 	&debug_uart,
 	&tegra_sdhci_device4,
 	&tegra_sdhci_device1,
 	&wifi_rfkill_device,
 	&leds_gpio,
+	&gpio_keys_device,
 };
 
 static void paz00_i2c_init(void)
@@ -189,7 +216,7 @@ MACHINE_START(PAZ00, "Toshiba AC100 / Dynabook AZ")
 	.atag_offset	= 0x100,
 	.fixup		= tegra_paz00_fixup,
 	.map_io         = tegra_map_common_io,
-	.init_early	= tegra_init_early,
+	.init_early	= tegra20_init_early,
 	.init_irq       = tegra_init_irq,
 	.handle_irq	= gic_handle_irq,
 	.timer          = &tegra_timer,
diff --git a/arch/arm/mach-tegra/board-paz00.h b/arch/arm/mach-tegra/board-paz00.h
index 8aff06eb58c3..ffa83f580db6 100644
--- a/arch/arm/mach-tegra/board-paz00.h
+++ b/arch/arm/mach-tegra/board-paz00.h
@@ -32,6 +32,9 @@
 #define TEGRA_WIFI_RST			TEGRA_GPIO_PD1
 #define TEGRA_WIFI_LED			TEGRA_GPIO_PD0
 
+/* WakeUp */
+#define TEGRA_GPIO_POWERKEY	TEGRA_GPIO_PJ7
+
 void paz00_pinmux_init(void);
 
 #endif
diff --git a/arch/arm/mach-tegra/board-pinmux.c b/arch/arm/mach-tegra/board-pinmux.c
new file mode 100644
index 000000000000..adc3efe979b3
--- /dev/null
+++ b/arch/arm/mach-tegra/board-pinmux.c
@@ -0,0 +1,104 @@
+/*
+ * Copyright (c) 2011, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/device.h>
+#include <linux/kernel.h>
+#include <linux/notifier.h>
+#include <linux/of.h>
+#include <linux/string.h>
+
+#include <mach/gpio-tegra.h>
+#include <mach/pinmux.h>
+
+#include "board-pinmux.h"
+#include "devices.h"
+
+struct tegra_board_pinmux_conf *confs[2];
+
+static void tegra_board_pinmux_setup_gpios(void)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(confs); i++) {
+		if (!confs[i])
+			continue;
+
+		tegra_gpio_config(confs[i]->gpios, confs[i]->gpio_count);
+	}
+}
+
+static void tegra_board_pinmux_setup_pinmux(void)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(confs); i++) {
+		if (!confs[i])
+			continue;
+
+		tegra_pinmux_config_table(confs[i]->pgs, confs[i]->pg_count);
+
+		if (confs[i]->drives)
+			tegra_drive_pinmux_config_table(confs[i]->drives,
+							confs[i]->drive_count);
+	}
+}
+
+static int tegra_board_pinmux_bus_notify(struct notifier_block *nb,
+					 unsigned long event, void *vdev)
+{
+	static bool had_gpio;
+	static bool had_pinmux;
+
+	struct device *dev = vdev;
+	const char *devname;
+
+	if (event != BUS_NOTIFY_BOUND_DRIVER)
+		return NOTIFY_DONE;
+
+	devname = dev_name(dev);
+
+	if (!had_gpio && !strcmp(devname, GPIO_DEV)) {
+		tegra_board_pinmux_setup_gpios();
+		had_gpio = true;
+	} else if (!had_pinmux && !strcmp(devname, PINMUX_DEV)) {
+		tegra_board_pinmux_setup_pinmux();
+		had_pinmux = true;
+	}
+
+	if (had_gpio && had_pinmux)
+		return NOTIFY_STOP_MASK;
+	else
+		return NOTIFY_DONE;
+}
+
+static struct notifier_block nb = {
+	.notifier_call = tegra_board_pinmux_bus_notify,
+};
+
+static struct platform_device *devices[] = {
+	&tegra_gpio_device,
+	&tegra_pinmux_device,
+};
+
+void tegra_board_pinmux_init(struct tegra_board_pinmux_conf *conf_a,
+			     struct tegra_board_pinmux_conf *conf_b)
+{
+	confs[0] = conf_a;
+	confs[1] = conf_b;
+
+	bus_register_notifier(&platform_bus_type, &nb);
+
+	if (!of_machine_is_compatible("nvidia,tegra20"))
+		platform_add_devices(devices, ARRAY_SIZE(devices));
+}
diff --git a/arch/arm/mach-tegra/board-pinmux.h b/arch/arm/mach-tegra/board-pinmux.h
new file mode 100644
index 000000000000..4aac73546f54
--- /dev/null
+++ b/arch/arm/mach-tegra/board-pinmux.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright (c) 2011, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef __MACH_TEGRA_BOARD_PINMUX_H
+#define __MACH_TEGRA_BOARD_PINMUX_H
+
+#define GPIO_DEV "tegra-gpio"
+#define PINMUX_DEV "tegra-pinmux"
+
+struct tegra_pingroup_config;
+struct tegra_gpio_table;
+
+struct tegra_board_pinmux_conf {
+	struct tegra_pingroup_config *pgs;
+	int pg_count;
+
+	struct tegra_drive_pingroup_config *drives;
+	int drive_count;
+
+	struct tegra_gpio_table *gpios;
+	int gpio_count;
+};
+
+void tegra_board_pinmux_init(struct tegra_board_pinmux_conf *conf_a,
+			     struct tegra_board_pinmux_conf *conf_b);
+
+#endif
diff --git a/arch/arm/mach-tegra/board-seaboard-pinmux.c b/arch/arm/mach-tegra/board-seaboard-pinmux.c
index b1c2972f62fe..55e7e43a14ad 100644
--- a/arch/arm/mach-tegra/board-seaboard-pinmux.c
+++ b/arch/arm/mach-tegra/board-seaboard-pinmux.c
@@ -19,11 +19,11 @@
 #include <linux/of.h>
 
 #include <mach/pinmux.h>
-#include <mach/pinmux-t2.h>
+#include <mach/pinmux-tegra20.h>
 
 #include "gpio-names.h"
+#include "board-pinmux.h"
 #include "board-seaboard.h"
-#include "devices.h"
 
 #define DEFAULT_DRIVE(_name)					\
 	{							\
@@ -37,11 +37,11 @@
 		.slew_falling = TEGRA_SLEW_SLOWEST,		\
 	}
 
-static __initdata struct tegra_drive_pingroup_config seaboard_drive_pinmux[] = {
+static struct tegra_drive_pingroup_config seaboard_drive_pinmux[] = {
 	DEFAULT_DRIVE(SDIO1),
 };
 
-static __initdata struct tegra_pingroup_config seaboard_pinmux[] = {
+static struct tegra_pingroup_config common_pinmux[] = {
 	{TEGRA_PINGROUP_ATA,   TEGRA_MUX_IDE,           TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_ATB,   TEGRA_MUX_SDIO4,         TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_ATC,   TEGRA_MUX_NAND,          TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
@@ -55,7 +55,6 @@ static __initdata struct tegra_pingroup_config seaboard_pinmux[] = {
 	{TEGRA_PINGROUP_DAP2,  TEGRA_MUX_DAP2,          TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_DAP3,  TEGRA_MUX_DAP3,          TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
 	{TEGRA_PINGROUP_DAP4,  TEGRA_MUX_DAP4,          TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
-	{TEGRA_PINGROUP_DDC,   TEGRA_MUX_RSVD2,         TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
 	{TEGRA_PINGROUP_DTA,   TEGRA_MUX_VI,            TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_DTB,   TEGRA_MUX_VI,            TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_DTC,   TEGRA_MUX_VI,            TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_NORMAL},
@@ -65,7 +64,6 @@ static __initdata struct tegra_pingroup_config seaboard_pinmux[] = {
 	{TEGRA_PINGROUP_GMA,   TEGRA_MUX_SDIO4,         TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_GMB,   TEGRA_MUX_GMI,           TEGRA_PUPD_PULL_UP,   TEGRA_TRI_TRISTATE},
 	{TEGRA_PINGROUP_GMC,   TEGRA_MUX_UARTD,         TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
-	{TEGRA_PINGROUP_GMD,   TEGRA_MUX_SFLASH,        TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_GME,   TEGRA_MUX_SDIO4,         TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_GPU,   TEGRA_MUX_PWM,           TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_GPU7,  TEGRA_MUX_RTCK,          TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
@@ -108,13 +106,8 @@ static __initdata struct tegra_pingroup_config seaboard_pinmux[] = {
 	{TEGRA_PINGROUP_LM0,   TEGRA_MUX_RSVD4,         TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_LM1,   TEGRA_MUX_CRT,           TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
 	{TEGRA_PINGROUP_LPP,   TEGRA_MUX_DISPLAYA,      TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
-	{TEGRA_PINGROUP_LPW0,  TEGRA_MUX_HDMI,          TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_LPW1,  TEGRA_MUX_RSVD4,         TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
-	{TEGRA_PINGROUP_LPW2,  TEGRA_MUX_HDMI,          TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_LSC0,  TEGRA_MUX_DISPLAYA,      TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
-	{TEGRA_PINGROUP_LSC1,  TEGRA_MUX_HDMI,          TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
-	{TEGRA_PINGROUP_LSCK,  TEGRA_MUX_HDMI,          TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
-	{TEGRA_PINGROUP_LSDA,  TEGRA_MUX_HDMI,          TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
 	{TEGRA_PINGROUP_LSDI,  TEGRA_MUX_RSVD4,         TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
 	{TEGRA_PINGROUP_LSPI,  TEGRA_MUX_DISPLAYA,      TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_LVP0,  TEGRA_MUX_RSVD4,         TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
@@ -122,25 +115,19 @@ static __initdata struct tegra_pingroup_config seaboard_pinmux[] = {
 	{TEGRA_PINGROUP_LVS,   TEGRA_MUX_DISPLAYA,      TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_OWC,   TEGRA_MUX_RSVD2,         TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
 	{TEGRA_PINGROUP_PMC,   TEGRA_MUX_PWR_ON,        TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
-	{TEGRA_PINGROUP_PTA,   TEGRA_MUX_HDMI,          TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_RM,    TEGRA_MUX_I2C,           TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_SDB,   TEGRA_MUX_SDIO3,         TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_SDC,   TEGRA_MUX_SDIO3,         TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_SDD,   TEGRA_MUX_SDIO3,         TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_SDIO1, TEGRA_MUX_SDIO1,         TEGRA_PUPD_PULL_UP,   TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_SLXA,  TEGRA_MUX_PCIE,          TEGRA_PUPD_PULL_UP,   TEGRA_TRI_TRISTATE},
-	{TEGRA_PINGROUP_SLXC,  TEGRA_MUX_SPDIF,         TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
 	{TEGRA_PINGROUP_SLXD,  TEGRA_MUX_SPDIF,         TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
-	{TEGRA_PINGROUP_SLXK,  TEGRA_MUX_PCIE,          TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_SPDI,  TEGRA_MUX_RSVD2,         TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_SPDO,  TEGRA_MUX_RSVD2,         TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
-	{TEGRA_PINGROUP_SPIA,  TEGRA_MUX_GMI,           TEGRA_PUPD_PULL_UP,   TEGRA_TRI_TRISTATE},
 	{TEGRA_PINGROUP_SPIB,  TEGRA_MUX_GMI,           TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
-	{TEGRA_PINGROUP_SPIC,  TEGRA_MUX_GMI,           TEGRA_PUPD_PULL_UP,   TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_SPID,  TEGRA_MUX_SPI1,          TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
 	{TEGRA_PINGROUP_SPIE,  TEGRA_MUX_SPI1,          TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
 	{TEGRA_PINGROUP_SPIF,  TEGRA_MUX_SPI1,          TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_TRISTATE},
-	{TEGRA_PINGROUP_SPIG,  TEGRA_MUX_SPI2_ALT,      TEGRA_PUPD_PULL_UP,   TEGRA_TRI_TRISTATE},
 	{TEGRA_PINGROUP_SPIH,  TEGRA_MUX_SPI2_ALT,      TEGRA_PUPD_PULL_UP,   TEGRA_TRI_TRISTATE},
 	{TEGRA_PINGROUP_UAA,   TEGRA_MUX_ULPI,          TEGRA_PUPD_PULL_UP,   TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_UAB,   TEGRA_MUX_ULPI,          TEGRA_PUPD_PULL_UP,   TEGRA_TRI_NORMAL},
@@ -160,13 +147,24 @@ static __initdata struct tegra_pingroup_config seaboard_pinmux[] = {
 	{TEGRA_PINGROUP_XM2D,  TEGRA_MUX_NONE,          TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 };
 
-static __initdata struct tegra_pingroup_config ventana_pinmux[] = {
-	{TEGRA_PINGROUP_DAP3, TEGRA_MUX_DAP3,     TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
+static struct tegra_pingroup_config seaboard_pinmux[] = {
+	{TEGRA_PINGROUP_DDC,   TEGRA_MUX_RSVD2,         TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
+	{TEGRA_PINGROUP_GMD,   TEGRA_MUX_SFLASH,        TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
+	{TEGRA_PINGROUP_LPW0,  TEGRA_MUX_HDMI,          TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
+	{TEGRA_PINGROUP_LPW2,  TEGRA_MUX_HDMI,          TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
+	{TEGRA_PINGROUP_LSC1,  TEGRA_MUX_HDMI,          TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
+	{TEGRA_PINGROUP_LSCK,  TEGRA_MUX_HDMI,          TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
+	{TEGRA_PINGROUP_LSDA,  TEGRA_MUX_HDMI,          TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
+	{TEGRA_PINGROUP_PTA,   TEGRA_MUX_HDMI,          TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
+	{TEGRA_PINGROUP_SLXC,  TEGRA_MUX_SPDIF,         TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
+	{TEGRA_PINGROUP_SLXK,  TEGRA_MUX_PCIE,          TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
+	{TEGRA_PINGROUP_SPIA,  TEGRA_MUX_GMI,           TEGRA_PUPD_PULL_UP,   TEGRA_TRI_TRISTATE},
+	{TEGRA_PINGROUP_SPIC,  TEGRA_MUX_GMI,           TEGRA_PUPD_PULL_UP,   TEGRA_TRI_NORMAL},
+	{TEGRA_PINGROUP_SPIG,  TEGRA_MUX_SPI2_ALT,      TEGRA_PUPD_PULL_UP,   TEGRA_TRI_TRISTATE},
+};
+
+static struct tegra_pingroup_config ventana_pinmux[] = {
 	{TEGRA_PINGROUP_DDC,  TEGRA_MUX_RSVD2,    TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
-	{TEGRA_PINGROUP_DTA,  TEGRA_MUX_VI,       TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_NORMAL},
-	{TEGRA_PINGROUP_DTB,  TEGRA_MUX_VI,       TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_NORMAL},
-	{TEGRA_PINGROUP_DTC,  TEGRA_MUX_VI,       TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_NORMAL},
-	{TEGRA_PINGROUP_DTD,  TEGRA_MUX_VI,       TEGRA_PUPD_PULL_DOWN, TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_GMD,  TEGRA_MUX_SFLASH,   TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
 	{TEGRA_PINGROUP_LPW0, TEGRA_MUX_RSVD4,    TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_LPW2, TEGRA_MUX_RSVD4,    TEGRA_PUPD_NORMAL,    TEGRA_TRI_NORMAL},
@@ -181,65 +179,59 @@ static __initdata struct tegra_pingroup_config ventana_pinmux[] = {
 	{TEGRA_PINGROUP_SPIG, TEGRA_MUX_SPI2_ALT, TEGRA_PUPD_NORMAL,    TEGRA_TRI_TRISTATE},
 };
 
-static struct platform_device *pinmux_devices[] = {
-	&tegra_gpio_device,
-	&tegra_pinmux_device,
-};
-
 static struct tegra_gpio_table common_gpio_table[] = {
 	{ .gpio = TEGRA_GPIO_SD2_CD,		.enable = true },
 	{ .gpio = TEGRA_GPIO_SD2_WP,		.enable = true },
 	{ .gpio = TEGRA_GPIO_SD2_POWER,		.enable = true },
+	{ .gpio = TEGRA_GPIO_CDC_IRQ,		.enable = true },
+};
+
+static struct tegra_gpio_table seaboard_gpio_table[] = {
 	{ .gpio = TEGRA_GPIO_LIDSWITCH,		.enable = true },
 	{ .gpio = TEGRA_GPIO_POWERKEY,		.enable = true },
 	{ .gpio = TEGRA_GPIO_HP_DET,		.enable = true },
 	{ .gpio = TEGRA_GPIO_ISL29018_IRQ,	.enable = true },
-	{ .gpio = TEGRA_GPIO_CDC_IRQ,		.enable = true },
 	{ .gpio = TEGRA_GPIO_USB1,		.enable = true },
 };
 
-static void __init update_pinmux(struct tegra_pingroup_config *newtbl, int size)
-{
-	int i, j;
-	struct tegra_pingroup_config *new_pingroup, *base_pingroup;
-
-	/* Update base seaboard pinmux table with secondary board
-	 * specific pinmux table table.
-	 */
-	for (i = 0; i < size; i++) {
-		new_pingroup = &newtbl[i];
-		for (j = 0; j < ARRAY_SIZE(seaboard_pinmux); j++) {
-			base_pingroup = &seaboard_pinmux[j];
-			if (new_pingroup->pingroup == base_pingroup->pingroup) {
-				*base_pingroup = *new_pingroup;
-				break;
-			}
-		}
-	}
-}
-
-void __init seaboard_common_pinmux_init(void)
-{
-	if (!of_machine_is_compatible("nvidia,tegra20"))
-		platform_add_devices(pinmux_devices,
-					ARRAY_SIZE(pinmux_devices));
+static struct tegra_gpio_table ventana_gpio_table[] = {
+	/* hp_det */
+	{ .gpio = TEGRA_GPIO_PW2,		.enable = true },
+	/* int_mic_en */
+	{ .gpio = TEGRA_GPIO_PX0,		.enable = true },
+	/* ext_mic_en */
+	{ .gpio = TEGRA_GPIO_PX1,		.enable = true },
+};
 
-	tegra_pinmux_config_table(seaboard_pinmux, ARRAY_SIZE(seaboard_pinmux));
+static struct tegra_board_pinmux_conf common_conf = {
+	.pgs = common_pinmux,
+	.pg_count = ARRAY_SIZE(common_pinmux),
+	.gpios = common_gpio_table,
+	.gpio_count = ARRAY_SIZE(common_gpio_table),
+};
 
-	tegra_drive_pinmux_config_table(seaboard_drive_pinmux,
-					ARRAY_SIZE(seaboard_drive_pinmux));
+static struct tegra_board_pinmux_conf seaboard_conf = {
+	.pgs = seaboard_pinmux,
+	.pg_count = ARRAY_SIZE(seaboard_pinmux),
+	.drives = seaboard_drive_pinmux,
+	.drive_count = ARRAY_SIZE(seaboard_drive_pinmux),
+	.gpios = seaboard_gpio_table,
+	.gpio_count = ARRAY_SIZE(seaboard_gpio_table),
+};
 
-	tegra_gpio_config(common_gpio_table, ARRAY_SIZE(common_gpio_table));
-}
+static struct tegra_board_pinmux_conf ventana_conf = {
+	.pgs = ventana_pinmux,
+	.pg_count = ARRAY_SIZE(ventana_pinmux),
+	.gpios = ventana_gpio_table,
+	.gpio_count = ARRAY_SIZE(ventana_gpio_table),
+};
 
-void __init seaboard_pinmux_init(void)
+void seaboard_pinmux_init(void)
 {
-	seaboard_common_pinmux_init();
+	tegra_board_pinmux_init(&common_conf, &seaboard_conf);
 }
 
-void __init ventana_pinmux_init(void)
+void ventana_pinmux_init(void)
 {
-	update_pinmux(ventana_pinmux, ARRAY_SIZE(ventana_pinmux));
-	seaboard_common_pinmux_init();
+	tegra_board_pinmux_init(&common_conf, &ventana_conf);
 }
-
diff --git a/arch/arm/mach-tegra/board-seaboard.c b/arch/arm/mach-tegra/board-seaboard.c
index c1599eb8e0cb..cfc74d46a09e 100644
--- a/arch/arm/mach-tegra/board-seaboard.c
+++ b/arch/arm/mach-tegra/board-seaboard.c
@@ -283,7 +283,7 @@ static void __init tegra_wario_init(void)
 MACHINE_START(SEABOARD, "seaboard")
 	.atag_offset    = 0x100,
 	.map_io         = tegra_map_common_io,
-	.init_early     = tegra_init_early,
+	.init_early     = tegra20_init_early,
 	.init_irq       = tegra_init_irq,
 	.handle_irq	= gic_handle_irq,
 	.timer          = &tegra_timer,
@@ -294,7 +294,7 @@ MACHINE_END
 MACHINE_START(KAEN, "kaen")
 	.atag_offset    = 0x100,
 	.map_io         = tegra_map_common_io,
-	.init_early     = tegra_init_early,
+	.init_early     = tegra20_init_early,
 	.init_irq       = tegra_init_irq,
 	.handle_irq	= gic_handle_irq,
 	.timer          = &tegra_timer,
@@ -305,7 +305,7 @@ MACHINE_END
 MACHINE_START(WARIO, "wario")
 	.atag_offset    = 0x100,
 	.map_io         = tegra_map_common_io,
-	.init_early     = tegra_init_early,
+	.init_early     = tegra20_init_early,
 	.init_irq       = tegra_init_irq,
 	.handle_irq	= gic_handle_irq,
 	.timer          = &tegra_timer,
diff --git a/arch/arm/mach-tegra/board-trimslice-pinmux.c b/arch/arm/mach-tegra/board-trimslice-pinmux.c
index 7ab719d46da0..a21a2be57cb6 100644
--- a/arch/arm/mach-tegra/board-trimslice-pinmux.c
+++ b/arch/arm/mach-tegra/board-trimslice-pinmux.c
@@ -19,12 +19,13 @@
 #include <linux/of.h>
 
 #include <mach/pinmux.h>
+#include <mach/pinmux-tegra20.h>
 
 #include "gpio-names.h"
+#include "board-pinmux.h"
 #include "board-trimslice.h"
-#include "devices.h"
 
-static __initdata struct tegra_pingroup_config trimslice_pinmux[] = {
+static struct tegra_pingroup_config trimslice_pinmux[] = {
 	{TEGRA_PINGROUP_ATA,   TEGRA_MUX_IDE,           TEGRA_PUPD_NORMAL,	TEGRA_TRI_TRISTATE},
 	{TEGRA_PINGROUP_ATB,   TEGRA_MUX_SDIO4,         TEGRA_PUPD_NORMAL,	TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_ATC,   TEGRA_MUX_NAND,          TEGRA_PUPD_NORMAL,	TEGRA_TRI_TRISTATE},
@@ -105,7 +106,7 @@ static __initdata struct tegra_pingroup_config trimslice_pinmux[] = {
 	{TEGRA_PINGROUP_LVS,   TEGRA_MUX_DISPLAYA,      TEGRA_PUPD_PULL_UP,     TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_OWC,   TEGRA_MUX_RSVD2,         TEGRA_PUPD_PULL_UP,     TEGRA_TRI_TRISTATE},
 	{TEGRA_PINGROUP_PMC,   TEGRA_MUX_PWR_ON,        TEGRA_PUPD_NORMAL,      TEGRA_TRI_TRISTATE},
-	{TEGRA_PINGROUP_PTA,   TEGRA_MUX_RSVD3,         TEGRA_PUPD_NORMAL,      TEGRA_TRI_TRISTATE},
+	{TEGRA_PINGROUP_PTA,   TEGRA_MUX_GMI,           TEGRA_PUPD_NORMAL,      TEGRA_TRI_TRISTATE},
 	{TEGRA_PINGROUP_RM,    TEGRA_MUX_I2C,           TEGRA_PUPD_PULL_UP,     TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_SDB,   TEGRA_MUX_PWM,           TEGRA_PUPD_NORMAL,      TEGRA_TRI_NORMAL},
 	{TEGRA_PINGROUP_SDC,   TEGRA_MUX_PWM,           TEGRA_PUPD_PULL_UP,     TEGRA_TRI_NORMAL},
@@ -143,11 +144,6 @@ static __initdata struct tegra_pingroup_config trimslice_pinmux[] = {
 	{TEGRA_PINGROUP_XM2D,  TEGRA_MUX_NONE,          TEGRA_PUPD_NORMAL,      TEGRA_TRI_NORMAL},
 };
 
-static struct platform_device *pinmux_devices[] = {
-	&tegra_gpio_device,
-	&tegra_pinmux_device,
-};
-
 static struct tegra_gpio_table gpio_table[] = {
 	{ .gpio = TRIMSLICE_GPIO_SD4_CD, .enable = true	}, /* mmc4 cd */
 	{ .gpio = TRIMSLICE_GPIO_SD4_WP, .enable = true	}, /* mmc4 wp */
@@ -156,11 +152,14 @@ static struct tegra_gpio_table gpio_table[] = {
 	{ .gpio = TRIMSLICE_GPIO_USB2_RST,  .enable = true }, /* USB2 PHY rst */
 };
 
-void __init trimslice_pinmux_init(void)
+static struct tegra_board_pinmux_conf conf = {
+	.pgs = trimslice_pinmux,
+	.pg_count = ARRAY_SIZE(trimslice_pinmux),
+	.gpios = gpio_table,
+	.gpio_count = ARRAY_SIZE(gpio_table),
+};
+
+void trimslice_pinmux_init(void)
 {
-	if (!of_machine_is_compatible("nvidia,tegra20"))
-		platform_add_devices(pinmux_devices,
-					ARRAY_SIZE(pinmux_devices));
-	tegra_pinmux_config_table(trimslice_pinmux, ARRAY_SIZE(trimslice_pinmux));
-	tegra_gpio_config(gpio_table, ARRAY_SIZE(gpio_table));
+	tegra_board_pinmux_init(&conf, NULL);
 }
diff --git a/arch/arm/mach-tegra/board-trimslice.c b/arch/arm/mach-tegra/board-trimslice.c
index c242314a1db5..cd52820a3e37 100644
--- a/arch/arm/mach-tegra/board-trimslice.c
+++ b/arch/arm/mach-tegra/board-trimslice.c
@@ -175,7 +175,7 @@ MACHINE_START(TRIMSLICE, "trimslice")
 	.atag_offset	= 0x100,
 	.fixup		= tegra_trimslice_fixup,
 	.map_io         = tegra_map_common_io,
-	.init_early	= tegra_init_early,
+	.init_early	= tegra20_init_early,
 	.init_irq       = tegra_init_irq,
 	.handle_irq	= gic_handle_irq,
 	.timer          = &tegra_timer,
diff --git a/arch/arm/mach-tegra/board.h b/arch/arm/mach-tegra/board.h
index 1d14df7eb7de..75d1543d77c0 100644
--- a/arch/arm/mach-tegra/board.h
+++ b/arch/arm/mach-tegra/board.h
@@ -25,10 +25,11 @@
 
 void tegra_assert_system_reset(char mode, const char *cmd);
 
-void __init tegra_init_early(void);
+void __init tegra20_init_early(void);
+void __init tegra30_init_early(void);
 void __init tegra_map_common_io(void);
 void __init tegra_init_irq(void);
-void __init tegra_init_clock(void);
+void __init tegra_dt_init_irq(void);
 int __init tegra_pcie_init(bool init_port0, bool init_port1);
 
 extern struct sys_timer tegra_timer;
diff --git a/arch/arm/mach-tegra/clock.c b/arch/arm/mach-tegra/clock.c
index f8d41ffc0ca9..8337068a4abe 100644
--- a/arch/arm/mach-tegra/clock.c
+++ b/arch/arm/mach-tegra/clock.c
@@ -387,35 +387,18 @@ EXPORT_SYMBOL(tegra_clk_init_from_table);
 
 void tegra_periph_reset_deassert(struct clk *c)
 {
-	tegra2_periph_reset_deassert(c);
+	BUG_ON(!c->ops->reset);
+	c->ops->reset(c, false);
 }
 EXPORT_SYMBOL(tegra_periph_reset_deassert);
 
 void tegra_periph_reset_assert(struct clk *c)
 {
-	tegra2_periph_reset_assert(c);
+	BUG_ON(!c->ops->reset);
+	c->ops->reset(c, true);
 }
 EXPORT_SYMBOL(tegra_periph_reset_assert);
 
-void __init tegra_init_clock(void)
-{
-	tegra2_init_clocks();
-}
-
-/*
- * The SDMMC controllers have extra bits in the clock source register that
- * adjust the delay between the clock and data to compenstate for delays
- * on the PCB.
- */
-void tegra_sdmmc_tap_delay(struct clk *c, int delay)
-{
-	unsigned long flags;
-
-	spin_lock_irqsave(&c->spinlock, flags);
-	tegra2_sdmmc_tap_delay(c, delay);
-	spin_unlock_irqrestore(&c->spinlock, flags);
-}
-
 #ifdef CONFIG_DEBUG_FS
 
 static int __clk_lock_all_spinlocks(void)
diff --git a/arch/arm/mach-tegra/clock.h b/arch/arm/mach-tegra/clock.h
index 688316abc64e..5c44106616c5 100644
--- a/arch/arm/mach-tegra/clock.h
+++ b/arch/arm/mach-tegra/clock.h
@@ -146,15 +146,11 @@ struct tegra_clk_init_table {
 };
 
 void tegra2_init_clocks(void);
-void tegra2_periph_reset_deassert(struct clk *c);
-void tegra2_periph_reset_assert(struct clk *c);
 void clk_init(struct clk *clk);
 struct clk *tegra_get_clock_by_name(const char *name);
-unsigned long clk_measure_input_freq(void);
 int clk_reparent(struct clk *c, struct clk *parent);
 void tegra_clk_init_from_table(struct tegra_clk_init_table *table);
 unsigned long clk_get_rate_locked(struct clk *c);
 int clk_set_rate_locked(struct clk *c, unsigned long rate);
-void tegra2_sdmmc_tap_delay(struct clk *c, int delay);
 
 #endif
diff --git a/arch/arm/mach-tegra/common.c b/arch/arm/mach-tegra/common.c
index 20f396d740fa..a2eb90169aed 100644
--- a/arch/arm/mach-tegra/common.c
+++ b/arch/arm/mach-tegra/common.c
@@ -1,5 +1,5 @@
 /*
- * arch/arm/mach-tegra/board-harmony.c
+ * arch/arm/mach-tegra/common.c
  *
  * Copyright (C) 2010 Google, Inc.
  *
@@ -21,8 +21,10 @@
 #include <linux/io.h>
 #include <linux/clk.h>
 #include <linux/delay.h>
+#include <linux/of_irq.h>
 
 #include <asm/hardware/cache-l2x0.h>
+#include <asm/hardware/gic.h>
 
 #include <mach/iomap.h>
 #include <mach/system.h>
@@ -31,18 +33,31 @@
 #include "clock.h"
 #include "fuse.h"
 
+#ifdef CONFIG_OF
+static const struct of_device_id tegra_dt_irq_match[] __initconst = {
+	{ .compatible = "arm,cortex-a9-gic", .data = gic_of_init },
+	{ }
+};
+
+void __init tegra_dt_init_irq(void)
+{
+	tegra_init_irq();
+	of_irq_init(tegra_dt_irq_match);
+}
+#endif
+
 void tegra_assert_system_reset(char mode, const char *cmd)
 {
-	void __iomem *reset = IO_ADDRESS(TEGRA_CLK_RESET_BASE + 0x04);
+	void __iomem *reset = IO_ADDRESS(TEGRA_PMC_BASE + 0);
 	u32 reg;
 
-	/* use *_related to avoid spinlock since caches are off */
 	reg = readl_relaxed(reset);
-	reg |= 0x04;
+	reg |= 0x10;
 	writel_relaxed(reg, reset);
 }
 
-static __initdata struct tegra_clk_init_table common_clk_init_table[] = {
+#ifdef CONFIG_ARCH_TEGRA_2x_SOC
+static __initdata struct tegra_clk_init_table tegra20_clk_init_table[] = {
 	/* name		parent		rate		enabled */
 	{ "clk_m",	NULL,		0,		true },
 	{ "pll_p",	"clk_m",	216000000,	true },
@@ -58,24 +73,38 @@ static __initdata struct tegra_clk_init_table common_clk_init_table[] = {
 	{ "cpu",	NULL,		0,		true },
 	{ NULL,		NULL,		0,		0},
 };
+#endif
 
-static void __init tegra_init_cache(void)
+static void __init tegra_init_cache(u32 tag_latency, u32 data_latency)
 {
 #ifdef CONFIG_CACHE_L2X0
 	void __iomem *p = IO_ADDRESS(TEGRA_ARM_PERIF_BASE) + 0x3000;
+	u32 aux_ctrl, cache_type;
+
+	writel_relaxed(tag_latency, p + L2X0_TAG_LATENCY_CTRL);
+	writel_relaxed(data_latency, p + L2X0_DATA_LATENCY_CTRL);
 
-	writel_relaxed(0x331, p + L2X0_TAG_LATENCY_CTRL);
-	writel_relaxed(0x441, p + L2X0_DATA_LATENCY_CTRL);
+	cache_type = readl(p + L2X0_CACHE_TYPE);
+	aux_ctrl = (cache_type & 0x700) << (17-8);
+	aux_ctrl |= 0x6C000001;
 
-	l2x0_init(p, 0x6C080001, 0x8200c3fe);
+	l2x0_init(p, aux_ctrl, 0x8200c3fe);
 #endif
 
 }
 
-void __init tegra_init_early(void)
+#ifdef CONFIG_ARCH_TEGRA_2x_SOC
+void __init tegra20_init_early(void)
 {
 	tegra_init_fuse();
-	tegra_init_clock();
-	tegra_clk_init_from_table(common_clk_init_table);
-	tegra_init_cache();
+	tegra2_init_clocks();
+	tegra_clk_init_from_table(tegra20_clk_init_table);
+	tegra_init_cache(0x331, 0x441);
+}
+#endif
+#ifdef CONFIG_ARCH_TEGRA_3x_SOC
+void __init tegra30_init_early(void)
+{
+	tegra_init_cache(0x441, 0x551);
 }
+#endif
diff --git a/arch/arm/mach-tegra/include/mach/clk.h b/arch/arm/mach-tegra/include/mach/clk.h
index c8baf8f80d23..fc3ecb66de08 100644
--- a/arch/arm/mach-tegra/include/mach/clk.h
+++ b/arch/arm/mach-tegra/include/mach/clk.h
@@ -26,6 +26,6 @@ void tegra_periph_reset_deassert(struct clk *c);
 void tegra_periph_reset_assert(struct clk *c);
 
 unsigned long clk_get_rate_all_locked(struct clk *c);
-void tegra_sdmmc_tap_delay(struct clk *c, int delay);
+void tegra2_sdmmc_tap_delay(struct clk *c, int delay);
 
 #endif
diff --git a/arch/arm/mach-tegra/include/mach/entry-macro.S b/arch/arm/mach-tegra/include/mach/entry-macro.S
index ac11262149c7..e577cfe27e72 100644
--- a/arch/arm/mach-tegra/include/mach/entry-macro.S
+++ b/arch/arm/mach-tegra/include/mach/entry-macro.S
@@ -18,21 +18,3 @@
 
 	.macro	arch_ret_to_user, tmp1, tmp2
 	.endm
-
-#if !defined(CONFIG_ARM_GIC)
-	/* legacy interrupt controller for AP16 */
-
-	.macro	get_irqnr_preamble, base, tmp
-	@ enable imprecise aborts
-	cpsie	a
-	@ EVP base at 0xf010f000
-	mov \base, #0xf0000000
-	orr \base, #0x00100000
-	orr \base, #0x0000f000
-	.endm
-
-	.macro	get_irqnr_and_base, irqnr, irqstat, base, tmp
-	ldr \irqnr, [\base, #0x20]	@ EVT_IRQ_STS
-	cmp \irqnr, #0x80
-	.endm
-#endif
diff --git a/arch/arm/mach-tegra/include/mach/irqs.h b/arch/arm/mach-tegra/include/mach/irqs.h
index 73265af4dda3..a2146cd6867d 100644
--- a/arch/arm/mach-tegra/include/mach/irqs.h
+++ b/arch/arm/mach-tegra/include/mach/irqs.h
@@ -25,7 +25,6 @@
 
 #define IRQ_LOCALTIMER                  29
 
-#ifdef CONFIG_ARCH_TEGRA_2x_SOC
 /* Primary Interrupt Controller */
 #define INT_PRI_BASE			(INT_GIC_BASE + 32)
 #define INT_TMR1			(INT_PRI_BASE + 0)
@@ -178,6 +177,5 @@
 #define NR_BOARD_IRQS			32
 
 #define NR_IRQS				(INT_BOARD_BASE + NR_BOARD_IRQS)
-#endif
 
 #endif
diff --git a/arch/arm/mach-tegra/include/mach/kbc.h b/arch/arm/mach-tegra/include/mach/kbc.h
index 4f3572a1c684..20bb0545f992 100644
--- a/arch/arm/mach-tegra/include/mach/kbc.h
+++ b/arch/arm/mach-tegra/include/mach/kbc.h
@@ -53,6 +53,7 @@ struct tegra_kbc_platform_data {
 	struct tegra_kbc_pin_cfg pin_cfg[KBC_MAX_GPIO];
 	const struct matrix_keymap_data *keymap_data;
 
+	u32 wakeup_key;
 	bool wakeup;
 	bool use_fn_map;
 	bool use_ghost_filter;
diff --git a/arch/arm/mach-tegra/include/mach/pinmux-t2.h b/arch/arm/mach-tegra/include/mach/pinmux-tegra20.h
index 4c2626347263..6a40c1dbab17 100644
--- a/arch/arm/mach-tegra/include/mach/pinmux-t2.h
+++ b/arch/arm/mach-tegra/include/mach/pinmux-tegra20.h
@@ -1,5 +1,5 @@
 /*
- * linux/arch/arm/mach-tegra/include/mach/pinmux-t2.h
+ * linux/arch/arm/mach-tegra/include/mach/pinmux-tegra20.h
  *
  * Copyright (C) 2010 Google, Inc.
  *
@@ -14,8 +14,8 @@
  *
  */
 
-#ifndef __MACH_TEGRA_PINMUX_T2_H
-#define __MACH_TEGRA_PINMUX_T2_H
+#ifndef __MACH_TEGRA_PINMUX_TEGRA20_H
+#define __MACH_TEGRA_PINMUX_TEGRA20_H
 
 enum tegra_pingroup {
 	TEGRA_PINGROUP_ATA = 0,
diff --git a/arch/arm/mach-tegra/include/mach/pinmux-tegra30.h b/arch/arm/mach-tegra/include/mach/pinmux-tegra30.h
new file mode 100644
index 000000000000..c1aee3eb2df1
--- /dev/null
+++ b/arch/arm/mach-tegra/include/mach/pinmux-tegra30.h
@@ -0,0 +1,320 @@
+/*
+ * linux/arch/arm/mach-tegra/include/mach/pinmux-tegra30.h
+ *
+ * Copyright (C) 2010 Google, Inc.
+ * Copyright (C) 2010,2011 Nvidia, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef __MACH_TEGRA_PINMUX_TEGRA30_H
+#define __MACH_TEGRA_PINMUX_TEGRA30_H
+
+enum tegra_pingroup {
+	TEGRA_PINGROUP_ULPI_DATA0 = 0,
+	TEGRA_PINGROUP_ULPI_DATA1,
+	TEGRA_PINGROUP_ULPI_DATA2,
+	TEGRA_PINGROUP_ULPI_DATA3,
+	TEGRA_PINGROUP_ULPI_DATA4,
+	TEGRA_PINGROUP_ULPI_DATA5,
+	TEGRA_PINGROUP_ULPI_DATA6,
+	TEGRA_PINGROUP_ULPI_DATA7,
+	TEGRA_PINGROUP_ULPI_CLK,
+	TEGRA_PINGROUP_ULPI_DIR,
+	TEGRA_PINGROUP_ULPI_NXT,
+	TEGRA_PINGROUP_ULPI_STP,
+	TEGRA_PINGROUP_DAP3_FS,
+	TEGRA_PINGROUP_DAP3_DIN,
+	TEGRA_PINGROUP_DAP3_DOUT,
+	TEGRA_PINGROUP_DAP3_SCLK,
+	TEGRA_PINGROUP_GPIO_PV0,
+	TEGRA_PINGROUP_GPIO_PV1,
+	TEGRA_PINGROUP_SDMMC1_CLK,
+	TEGRA_PINGROUP_SDMMC1_CMD,
+	TEGRA_PINGROUP_SDMMC1_DAT3,
+	TEGRA_PINGROUP_SDMMC1_DAT2,
+	TEGRA_PINGROUP_SDMMC1_DAT1,
+	TEGRA_PINGROUP_SDMMC1_DAT0,
+	TEGRA_PINGROUP_GPIO_PV2,
+	TEGRA_PINGROUP_GPIO_PV3,
+	TEGRA_PINGROUP_CLK2_OUT,
+	TEGRA_PINGROUP_CLK2_REQ,
+	TEGRA_PINGROUP_LCD_PWR1,
+	TEGRA_PINGROUP_LCD_PWR2,
+	TEGRA_PINGROUP_LCD_SDIN,
+	TEGRA_PINGROUP_LCD_SDOUT,
+	TEGRA_PINGROUP_LCD_WR_N,
+	TEGRA_PINGROUP_LCD_CS0_N,
+	TEGRA_PINGROUP_LCD_DC0,
+	TEGRA_PINGROUP_LCD_SCK,
+	TEGRA_PINGROUP_LCD_PWR0,
+	TEGRA_PINGROUP_LCD_PCLK,
+	TEGRA_PINGROUP_LCD_DE,
+	TEGRA_PINGROUP_LCD_HSYNC,
+	TEGRA_PINGROUP_LCD_VSYNC,
+	TEGRA_PINGROUP_LCD_D0,
+	TEGRA_PINGROUP_LCD_D1,
+	TEGRA_PINGROUP_LCD_D2,
+	TEGRA_PINGROUP_LCD_D3,
+	TEGRA_PINGROUP_LCD_D4,
+	TEGRA_PINGROUP_LCD_D5,
+	TEGRA_PINGROUP_LCD_D6,
+	TEGRA_PINGROUP_LCD_D7,
+	TEGRA_PINGROUP_LCD_D8,
+	TEGRA_PINGROUP_LCD_D9,
+	TEGRA_PINGROUP_LCD_D10,
+	TEGRA_PINGROUP_LCD_D11,
+	TEGRA_PINGROUP_LCD_D12,
+	TEGRA_PINGROUP_LCD_D13,
+	TEGRA_PINGROUP_LCD_D14,
+	TEGRA_PINGROUP_LCD_D15,
+	TEGRA_PINGROUP_LCD_D16,
+	TEGRA_PINGROUP_LCD_D17,
+	TEGRA_PINGROUP_LCD_D18,
+	TEGRA_PINGROUP_LCD_D19,
+	TEGRA_PINGROUP_LCD_D20,
+	TEGRA_PINGROUP_LCD_D21,
+	TEGRA_PINGROUP_LCD_D22,
+	TEGRA_PINGROUP_LCD_D23,
+	TEGRA_PINGROUP_LCD_CS1_N,
+	TEGRA_PINGROUP_LCD_M1,
+	TEGRA_PINGROUP_LCD_DC1,
+	TEGRA_PINGROUP_HDMI_INT,
+	TEGRA_PINGROUP_DDC_SCL,
+	TEGRA_PINGROUP_DDC_SDA,
+	TEGRA_PINGROUP_CRT_HSYNC,
+	TEGRA_PINGROUP_CRT_VSYNC,
+	TEGRA_PINGROUP_VI_D0,
+	TEGRA_PINGROUP_VI_D1,
+	TEGRA_PINGROUP_VI_D2,
+	TEGRA_PINGROUP_VI_D3,
+	TEGRA_PINGROUP_VI_D4,
+	TEGRA_PINGROUP_VI_D5,
+	TEGRA_PINGROUP_VI_D6,
+	TEGRA_PINGROUP_VI_D7,
+	TEGRA_PINGROUP_VI_D8,
+	TEGRA_PINGROUP_VI_D9,
+	TEGRA_PINGROUP_VI_D10,
+	TEGRA_PINGROUP_VI_D11,
+	TEGRA_PINGROUP_VI_PCLK,
+	TEGRA_PINGROUP_VI_MCLK,
+	TEGRA_PINGROUP_VI_VSYNC,
+	TEGRA_PINGROUP_VI_HSYNC,
+	TEGRA_PINGROUP_UART2_RXD,
+	TEGRA_PINGROUP_UART2_TXD,
+	TEGRA_PINGROUP_UART2_RTS_N,
+	TEGRA_PINGROUP_UART2_CTS_N,
+	TEGRA_PINGROUP_UART3_TXD,
+	TEGRA_PINGROUP_UART3_RXD,
+	TEGRA_PINGROUP_UART3_CTS_N,
+	TEGRA_PINGROUP_UART3_RTS_N,
+	TEGRA_PINGROUP_GPIO_PU0,
+	TEGRA_PINGROUP_GPIO_PU1,
+	TEGRA_PINGROUP_GPIO_PU2,
+	TEGRA_PINGROUP_GPIO_PU3,
+	TEGRA_PINGROUP_GPIO_PU4,
+	TEGRA_PINGROUP_GPIO_PU5,
+	TEGRA_PINGROUP_GPIO_PU6,
+	TEGRA_PINGROUP_GEN1_I2C_SDA,
+	TEGRA_PINGROUP_GEN1_I2C_SCL,
+	TEGRA_PINGROUP_DAP4_FS,
+	TEGRA_PINGROUP_DAP4_DIN,
+	TEGRA_PINGROUP_DAP4_DOUT,
+	TEGRA_PINGROUP_DAP4_SCLK,
+	TEGRA_PINGROUP_CLK3_OUT,
+	TEGRA_PINGROUP_CLK3_REQ,
+	TEGRA_PINGROUP_GMI_WP_N,
+	TEGRA_PINGROUP_GMI_IORDY,
+	TEGRA_PINGROUP_GMI_WAIT,
+	TEGRA_PINGROUP_GMI_ADV_N,
+	TEGRA_PINGROUP_GMI_CLK,
+	TEGRA_PINGROUP_GMI_CS0_N,
+	TEGRA_PINGROUP_GMI_CS1_N,
+	TEGRA_PINGROUP_GMI_CS2_N,
+	TEGRA_PINGROUP_GMI_CS3_N,
+	TEGRA_PINGROUP_GMI_CS4_N,
+	TEGRA_PINGROUP_GMI_CS6_N,
+	TEGRA_PINGROUP_GMI_CS7_N,
+	TEGRA_PINGROUP_GMI_AD0,
+	TEGRA_PINGROUP_GMI_AD1,
+	TEGRA_PINGROUP_GMI_AD2,
+	TEGRA_PINGROUP_GMI_AD3,
+	TEGRA_PINGROUP_GMI_AD4,
+	TEGRA_PINGROUP_GMI_AD5,
+	TEGRA_PINGROUP_GMI_AD6,
+	TEGRA_PINGROUP_GMI_AD7,
+	TEGRA_PINGROUP_GMI_AD8,
+	TEGRA_PINGROUP_GMI_AD9,
+	TEGRA_PINGROUP_GMI_AD10,
+	TEGRA_PINGROUP_GMI_AD11,
+	TEGRA_PINGROUP_GMI_AD12,
+	TEGRA_PINGROUP_GMI_AD13,
+	TEGRA_PINGROUP_GMI_AD14,
+	TEGRA_PINGROUP_GMI_AD15,
+	TEGRA_PINGROUP_GMI_A16,
+	TEGRA_PINGROUP_GMI_A17,
+	TEGRA_PINGROUP_GMI_A18,
+	TEGRA_PINGROUP_GMI_A19,
+	TEGRA_PINGROUP_GMI_WR_N,
+	TEGRA_PINGROUP_GMI_OE_N,
+	TEGRA_PINGROUP_GMI_DQS,
+	TEGRA_PINGROUP_GMI_RST_N,
+	TEGRA_PINGROUP_GEN2_I2C_SCL,
+	TEGRA_PINGROUP_GEN2_I2C_SDA,
+	TEGRA_PINGROUP_SDMMC4_CLK,
+	TEGRA_PINGROUP_SDMMC4_CMD,
+	TEGRA_PINGROUP_SDMMC4_DAT0,
+	TEGRA_PINGROUP_SDMMC4_DAT1,
+	TEGRA_PINGROUP_SDMMC4_DAT2,
+	TEGRA_PINGROUP_SDMMC4_DAT3,
+	TEGRA_PINGROUP_SDMMC4_DAT4,
+	TEGRA_PINGROUP_SDMMC4_DAT5,
+	TEGRA_PINGROUP_SDMMC4_DAT6,
+	TEGRA_PINGROUP_SDMMC4_DAT7,
+	TEGRA_PINGROUP_SDMMC4_RST_N,
+	TEGRA_PINGROUP_CAM_MCLK,
+	TEGRA_PINGROUP_GPIO_PCC1,
+	TEGRA_PINGROUP_GPIO_PBB0,
+	TEGRA_PINGROUP_CAM_I2C_SCL,
+	TEGRA_PINGROUP_CAM_I2C_SDA,
+	TEGRA_PINGROUP_GPIO_PBB3,
+	TEGRA_PINGROUP_GPIO_PBB4,
+	TEGRA_PINGROUP_GPIO_PBB5,
+	TEGRA_PINGROUP_GPIO_PBB6,
+	TEGRA_PINGROUP_GPIO_PBB7,
+	TEGRA_PINGROUP_GPIO_PCC2,
+	TEGRA_PINGROUP_JTAG_RTCK,
+	TEGRA_PINGROUP_PWR_I2C_SCL,
+	TEGRA_PINGROUP_PWR_I2C_SDA,
+	TEGRA_PINGROUP_KB_ROW0,
+	TEGRA_PINGROUP_KB_ROW1,
+	TEGRA_PINGROUP_KB_ROW2,
+	TEGRA_PINGROUP_KB_ROW3,
+	TEGRA_PINGROUP_KB_ROW4,
+	TEGRA_PINGROUP_KB_ROW5,
+	TEGRA_PINGROUP_KB_ROW6,
+	TEGRA_PINGROUP_KB_ROW7,
+	TEGRA_PINGROUP_KB_ROW8,
+	TEGRA_PINGROUP_KB_ROW9,
+	TEGRA_PINGROUP_KB_ROW10,
+	TEGRA_PINGROUP_KB_ROW11,
+	TEGRA_PINGROUP_KB_ROW12,
+	TEGRA_PINGROUP_KB_ROW13,
+	TEGRA_PINGROUP_KB_ROW14,
+	TEGRA_PINGROUP_KB_ROW15,
+	TEGRA_PINGROUP_KB_COL0,
+	TEGRA_PINGROUP_KB_COL1,
+	TEGRA_PINGROUP_KB_COL2,
+	TEGRA_PINGROUP_KB_COL3,
+	TEGRA_PINGROUP_KB_COL4,
+	TEGRA_PINGROUP_KB_COL5,
+	TEGRA_PINGROUP_KB_COL6,
+	TEGRA_PINGROUP_KB_COL7,
+	TEGRA_PINGROUP_CLK_32K_OUT,
+	TEGRA_PINGROUP_SYS_CLK_REQ,
+	TEGRA_PINGROUP_CORE_PWR_REQ,
+	TEGRA_PINGROUP_CPU_PWR_REQ,
+	TEGRA_PINGROUP_PWR_INT_N,
+	TEGRA_PINGROUP_CLK_32K_IN,
+	TEGRA_PINGROUP_OWR,
+	TEGRA_PINGROUP_DAP1_FS,
+	TEGRA_PINGROUP_DAP1_DIN,
+	TEGRA_PINGROUP_DAP1_DOUT,
+	TEGRA_PINGROUP_DAP1_SCLK,
+	TEGRA_PINGROUP_CLK1_REQ,
+	TEGRA_PINGROUP_CLK1_OUT,
+	TEGRA_PINGROUP_SPDIF_IN,
+	TEGRA_PINGROUP_SPDIF_OUT,
+	TEGRA_PINGROUP_DAP2_FS,
+	TEGRA_PINGROUP_DAP2_DIN,
+	TEGRA_PINGROUP_DAP2_DOUT,
+	TEGRA_PINGROUP_DAP2_SCLK,
+	TEGRA_PINGROUP_SPI2_MOSI,
+	TEGRA_PINGROUP_SPI2_MISO,
+	TEGRA_PINGROUP_SPI2_CS0_N,
+	TEGRA_PINGROUP_SPI2_SCK,
+	TEGRA_PINGROUP_SPI1_MOSI,
+	TEGRA_PINGROUP_SPI1_SCK,
+	TEGRA_PINGROUP_SPI1_CS0_N,
+	TEGRA_PINGROUP_SPI1_MISO,
+	TEGRA_PINGROUP_SPI2_CS1_N,
+	TEGRA_PINGROUP_SPI2_CS2_N,
+	TEGRA_PINGROUP_SDMMC3_CLK,
+	TEGRA_PINGROUP_SDMMC3_CMD,
+	TEGRA_PINGROUP_SDMMC3_DAT0,
+	TEGRA_PINGROUP_SDMMC3_DAT1,
+	TEGRA_PINGROUP_SDMMC3_DAT2,
+	TEGRA_PINGROUP_SDMMC3_DAT3,
+	TEGRA_PINGROUP_SDMMC3_DAT4,
+	TEGRA_PINGROUP_SDMMC3_DAT5,
+	TEGRA_PINGROUP_SDMMC3_DAT6,
+	TEGRA_PINGROUP_SDMMC3_DAT7,
+	TEGRA_PINGROUP_PEX_L0_PRSNT_N,
+	TEGRA_PINGROUP_PEX_L0_RST_N,
+	TEGRA_PINGROUP_PEX_L0_CLKREQ_N,
+	TEGRA_PINGROUP_PEX_WAKE_N,
+	TEGRA_PINGROUP_PEX_L1_PRSNT_N,
+	TEGRA_PINGROUP_PEX_L1_RST_N,
+	TEGRA_PINGROUP_PEX_L1_CLKREQ_N,
+	TEGRA_PINGROUP_PEX_L2_PRSNT_N,
+	TEGRA_PINGROUP_PEX_L2_RST_N,
+	TEGRA_PINGROUP_PEX_L2_CLKREQ_N,
+	TEGRA_PINGROUP_HDMI_CEC,
+	TEGRA_MAX_PINGROUP,
+};
+
+enum tegra_drive_pingroup {
+	TEGRA_DRIVE_PINGROUP_AO1 = 0,
+	TEGRA_DRIVE_PINGROUP_AO2,
+	TEGRA_DRIVE_PINGROUP_AT1,
+	TEGRA_DRIVE_PINGROUP_AT2,
+	TEGRA_DRIVE_PINGROUP_AT3,
+	TEGRA_DRIVE_PINGROUP_AT4,
+	TEGRA_DRIVE_PINGROUP_AT5,
+	TEGRA_DRIVE_PINGROUP_CDEV1,
+	TEGRA_DRIVE_PINGROUP_CDEV2,
+	TEGRA_DRIVE_PINGROUP_CSUS,
+	TEGRA_DRIVE_PINGROUP_DAP1,
+	TEGRA_DRIVE_PINGROUP_DAP2,
+	TEGRA_DRIVE_PINGROUP_DAP3,
+	TEGRA_DRIVE_PINGROUP_DAP4,
+	TEGRA_DRIVE_PINGROUP_DBG,
+	TEGRA_DRIVE_PINGROUP_LCD1,
+	TEGRA_DRIVE_PINGROUP_LCD2,
+	TEGRA_DRIVE_PINGROUP_SDIO2,
+	TEGRA_DRIVE_PINGROUP_SDIO3,
+	TEGRA_DRIVE_PINGROUP_SPI,
+	TEGRA_DRIVE_PINGROUP_UAA,
+	TEGRA_DRIVE_PINGROUP_UAB,
+	TEGRA_DRIVE_PINGROUP_UART2,
+	TEGRA_DRIVE_PINGROUP_UART3,
+	TEGRA_DRIVE_PINGROUP_VI1,
+	TEGRA_DRIVE_PINGROUP_SDIO1,
+	TEGRA_DRIVE_PINGROUP_CRT,
+	TEGRA_DRIVE_PINGROUP_DDC,
+	TEGRA_DRIVE_PINGROUP_GMA,
+	TEGRA_DRIVE_PINGROUP_GMB,
+	TEGRA_DRIVE_PINGROUP_GMC,
+	TEGRA_DRIVE_PINGROUP_GMD,
+	TEGRA_DRIVE_PINGROUP_GME,
+	TEGRA_DRIVE_PINGROUP_GMF,
+	TEGRA_DRIVE_PINGROUP_GMG,
+	TEGRA_DRIVE_PINGROUP_GMH,
+	TEGRA_DRIVE_PINGROUP_OWR,
+	TEGRA_DRIVE_PINGROUP_UAD,
+	TEGRA_DRIVE_PINGROUP_GPV,
+	TEGRA_DRIVE_PINGROUP_DEV3,
+	TEGRA_DRIVE_PINGROUP_CEC,
+	TEGRA_MAX_DRIVE_PINGROUP,
+};
+
+#endif
+
diff --git a/arch/arm/mach-tegra/include/mach/pinmux.h b/arch/arm/mach-tegra/include/mach/pinmux.h
index bb7dfdb61205..055f1792c8ff 100644
--- a/arch/arm/mach-tegra/include/mach/pinmux.h
+++ b/arch/arm/mach-tegra/include/mach/pinmux.h
@@ -2,6 +2,7 @@
  * linux/arch/arm/mach-tegra/include/mach/pinmux.h
  *
  * Copyright (C) 2010 Google, Inc.
+ * Copyright (C) 2010,2011 Nvidia, Inc.
  *
  * This software is licensed under the terms of the GNU General Public
  * License version 2, as published by the Free Software Foundation, and
@@ -17,18 +18,13 @@
 #ifndef __MACH_TEGRA_PINMUX_H
 #define __MACH_TEGRA_PINMUX_H
 
-#if defined(CONFIG_ARCH_TEGRA_2x_SOC)
-#include "pinmux-t2.h"
-#else
-#error "Undefined Tegra architecture"
-#endif
-
 enum tegra_mux_func {
 	TEGRA_MUX_RSVD = 0x8000,
 	TEGRA_MUX_RSVD1 = 0x8000,
 	TEGRA_MUX_RSVD2 = 0x8001,
 	TEGRA_MUX_RSVD3 = 0x8002,
 	TEGRA_MUX_RSVD4 = 0x8003,
+	TEGRA_MUX_INVALID = 0x4000,
 	TEGRA_MUX_NONE = -1,
 	TEGRA_MUX_AHB_CLK,
 	TEGRA_MUX_APB_CLK,
@@ -90,6 +86,49 @@ enum tegra_mux_func {
 	TEGRA_MUX_VI,
 	TEGRA_MUX_VI_SENSOR_CLK,
 	TEGRA_MUX_XIO,
+	TEGRA_MUX_BLINK,
+	TEGRA_MUX_CEC,
+	TEGRA_MUX_CLK12,
+	TEGRA_MUX_DAP,
+	TEGRA_MUX_DAPSDMMC2,
+	TEGRA_MUX_DDR,
+	TEGRA_MUX_DEV3,
+	TEGRA_MUX_DTV,
+	TEGRA_MUX_VI_ALT1,
+	TEGRA_MUX_VI_ALT2,
+	TEGRA_MUX_VI_ALT3,
+	TEGRA_MUX_EMC_DLL,
+	TEGRA_MUX_EXTPERIPH1,
+	TEGRA_MUX_EXTPERIPH2,
+	TEGRA_MUX_EXTPERIPH3,
+	TEGRA_MUX_GMI_ALT,
+	TEGRA_MUX_HDA,
+	TEGRA_MUX_HSI,
+	TEGRA_MUX_I2C4,
+	TEGRA_MUX_I2C5,
+	TEGRA_MUX_I2CPWR,
+	TEGRA_MUX_I2S0,
+	TEGRA_MUX_I2S1,
+	TEGRA_MUX_I2S2,
+	TEGRA_MUX_I2S3,
+	TEGRA_MUX_I2S4,
+	TEGRA_MUX_NAND_ALT,
+	TEGRA_MUX_POPSDIO4,
+	TEGRA_MUX_POPSDMMC4,
+	TEGRA_MUX_PWM0,
+	TEGRA_MUX_PWM1,
+	TEGRA_MUX_PWM2,
+	TEGRA_MUX_PWM3,
+	TEGRA_MUX_SATA,
+	TEGRA_MUX_SPI5,
+	TEGRA_MUX_SPI6,
+	TEGRA_MUX_SYSCLK,
+	TEGRA_MUX_VGP1,
+	TEGRA_MUX_VGP2,
+	TEGRA_MUX_VGP3,
+	TEGRA_MUX_VGP4,
+	TEGRA_MUX_VGP5,
+	TEGRA_MUX_VGP6,
 	TEGRA_MUX_SAFE,
 	TEGRA_MAX_MUX,
 };
@@ -105,6 +144,11 @@ enum tegra_tristate {
 	TEGRA_TRI_TRISTATE = 1,
 };
 
+enum tegra_pin_io {
+	TEGRA_PIN_OUTPUT = 0,
+	TEGRA_PIN_INPUT = 1,
+};
+
 enum tegra_vddio {
 	TEGRA_VDDIO_BB = 0,
 	TEGRA_VDDIO_LCD,
@@ -115,10 +159,16 @@ enum tegra_vddio {
 	TEGRA_VDDIO_SYS,
 	TEGRA_VDDIO_AUDIO,
 	TEGRA_VDDIO_SD,
+	TEGRA_VDDIO_CAM,
+	TEGRA_VDDIO_GMI,
+	TEGRA_VDDIO_PEXCTL,
+	TEGRA_VDDIO_SDMMC1,
+	TEGRA_VDDIO_SDMMC3,
+	TEGRA_VDDIO_SDMMC4,
 };
 
 struct tegra_pingroup_config {
-	enum tegra_pingroup	pingroup;
+	int pingroup;
 	enum tegra_mux_func	func;
 	enum tegra_pullupdown	pupd;
 	enum tegra_tristate	tristate;
@@ -187,7 +237,7 @@ enum tegra_schmitt {
 };
 
 struct tegra_drive_pingroup_config {
-	enum tegra_drive_pingroup pingroup;
+	int pingroup;
 	enum tegra_hsm hsm;
 	enum tegra_schmitt schmitt;
 	enum tegra_drive drive;
@@ -208,6 +258,7 @@ struct tegra_pingroup_desc {
 	int funcs[4];
 	int func_safe;
 	int vddio;
+	enum tegra_pin_io io_default;
 	s16 tri_bank;	/* Register bank the tri_reg exists within */
 	s16 mux_bank;	/* Register bank the mux_reg exists within */
 	s16 pupd_bank;	/* Register bank the pupd_reg exists within */
@@ -217,15 +268,23 @@ struct tegra_pingroup_desc {
 	s8 tri_bit; 	/* offset into the TRISTATE_REG_* register bit */
 	s8 mux_bit;	/* offset into the PIN_MUX_CTL_* register bit */
 	s8 pupd_bit;	/* offset into the PULL_UPDOWN_REG_* register bit */
+	s8 lock_bit;	/* offset of the LOCK bit into mux register bit */
+	s8 od_bit;	/* offset of the OD bit into mux register bit */
+	s8 ioreset_bit;	/* offset of the IO_RESET bit into mux register bit */
 };
 
-extern const struct tegra_pingroup_desc tegra_soc_pingroups[];
-extern const struct tegra_drive_pingroup_desc tegra_soc_drive_pingroups[];
+typedef void (*pinmux_init) (const struct tegra_pingroup_desc **pg,
+	int *pg_max, const struct tegra_drive_pingroup_desc **pgdrive,
+	int *pgdrive_max);
 
-int tegra_pinmux_set_tristate(enum tegra_pingroup pg,
-	enum tegra_tristate tristate);
-int tegra_pinmux_set_pullupdown(enum tegra_pingroup pg,
-	enum tegra_pullupdown pupd);
+void tegra20_pinmux_init(const struct tegra_pingroup_desc **pg, int *pg_max,
+	const struct tegra_drive_pingroup_desc **pgdrive, int *pgdrive_max);
+
+void tegra30_pinmux_init(const struct tegra_pingroup_desc **pg, int *pg_max,
+	const struct tegra_drive_pingroup_desc **pgdrive, int *pgdrive_max);
+
+int tegra_pinmux_set_tristate(int pg, enum tegra_tristate tristate);
+int tegra_pinmux_set_pullupdown(int pg, enum tegra_pullupdown pupd);
 
 void tegra_pinmux_config_table(const struct tegra_pingroup_config *config,
 	int len);
@@ -241,4 +300,3 @@ void tegra_pinmux_config_tristate_table(const struct tegra_pingroup_config *conf
 void tegra_pinmux_config_pullupdown_table(const struct tegra_pingroup_config *config,
 	int len, enum tegra_pullupdown pupd);
 #endif
-
diff --git a/arch/arm/mach-tegra/irq.c b/arch/arm/mach-tegra/irq.c
index 4956c3cea731..4e1afcd54fae 100644
--- a/arch/arm/mach-tegra/irq.c
+++ b/arch/arm/mach-tegra/irq.c
@@ -21,6 +21,7 @@
 #include <linux/interrupt.h>
 #include <linux/irq.h>
 #include <linux/io.h>
+#include <linux/of.h>
 
 #include <asm/hardware/gic.h>
 
@@ -28,10 +29,6 @@
 
 #include "board.h"
 
-#define INT_SYS_NR	(INT_GPIO_BASE - INT_PRI_BASE)
-#define INT_SYS_SZ	(INT_SEC_BASE - INT_PRI_BASE)
-#define PPI_NR		((INT_SYS_NR+INT_SYS_SZ-1)/INT_SYS_SZ)
-
 #define ICTLR_CPU_IEP_VFIQ	0x08
 #define ICTLR_CPU_IEP_FIR	0x14
 #define ICTLR_CPU_IEP_FIR_SET	0x18
@@ -129,6 +126,11 @@ void __init tegra_init_irq(void)
 	gic_arch_extn.irq_unmask = tegra_unmask;
 	gic_arch_extn.irq_retrigger = tegra_retrigger;
 
-	gic_init(0, 29, IO_ADDRESS(TEGRA_ARM_INT_DIST_BASE),
-		 IO_ADDRESS(TEGRA_ARM_PERIF_BASE + 0x100));
+	/*
+	 * Check if there is a devicetree present, since the GIC will be
+	 * initialized elsewhere under DT.
+	 */
+	if (!of_have_populated_dt())
+		gic_init(0, 29, IO_ADDRESS(TEGRA_ARM_INT_DIST_BASE),
+			IO_ADDRESS(TEGRA_ARM_PERIF_BASE + 0x100));
 }
diff --git a/arch/arm/mach-tegra/pcie.c b/arch/arm/mach-tegra/pcie.c
index 97ef3e55dfdf..ec63c6b2b6b5 100644
--- a/arch/arm/mach-tegra/pcie.c
+++ b/arch/arm/mach-tegra/pcie.c
@@ -37,7 +37,6 @@
 #include <asm/sizes.h>
 #include <asm/mach/pci.h>
 
-#include <mach/pinmux.h>
 #include <mach/iomap.h>
 #include <mach/clk.h>
 #include <mach/powergate.h>
diff --git a/arch/arm/mach-tegra/pinmux-t2-tables.c b/arch/arm/mach-tegra/pinmux-tegra20-tables.c
index a0dc2bc28ed3..734add1280b7 100644
--- a/arch/arm/mach-tegra/pinmux-t2-tables.c
+++ b/arch/arm/mach-tegra/pinmux-tegra20-tables.c
@@ -1,7 +1,7 @@
 /*
- * linux/arch/arm/mach-tegra/pinmux-t2-tables.c
+ * linux/arch/arm/mach-tegra/pinmux-tegra20-tables.c
  *
- * Common pinmux configurations for Tegra 2 SoCs
+ * Common pinmux configurations for Tegra20 SoCs
  *
  * Copyright (C) 2010 NVIDIA Corporation
  *
@@ -29,6 +29,7 @@
 
 #include <mach/iomap.h>
 #include <mach/pinmux.h>
+#include <mach/pinmux-tegra20.h>
 #include <mach/suspend.h>
 
 #define TRISTATE_REG_A		0x14
@@ -43,7 +44,7 @@
 		.reg = ((r) - PINGROUP_REG_A)			\
 	}
 
-const struct tegra_drive_pingroup_desc tegra_soc_drive_pingroups[TEGRA_MAX_DRIVE_PINGROUP] = {
+static const struct tegra_drive_pingroup_desc tegra_soc_drive_pingroups[TEGRA_MAX_DRIVE_PINGROUP] = {
 	DRIVE_PINGROUP(AO1,		0x868),
 	DRIVE_PINGROUP(AO2,		0x86c),
 	DRIVE_PINGROUP(AT1,		0x870),
@@ -105,9 +106,13 @@ const struct tegra_drive_pingroup_desc tegra_soc_drive_pingroups[TEGRA_MAX_DRIVE
 		.pupd_bank = 2,				\
 		.pupd_reg = ((pupd_r) - PULLUPDOWN_REG_A),	\
 		.pupd_bit = pupd_b,				\
+		.lock_bit = -1,					\
+		.od_bit = -1,					\
+		.ioreset_bit = -1,				\
+		.io_default = -1,				\
 	}
 
-const struct tegra_pingroup_desc tegra_soc_pingroups[TEGRA_MAX_PINGROUP] = {
+static const struct tegra_pingroup_desc tegra_soc_pingroups[TEGRA_MAX_PINGROUP] = {
 	PINGROUP(ATA,   NAND,  IDE,       NAND,      GMI,       RSVD,          IDE,       0x14, 0,  0x80, 24, 0xA0, 0),
 	PINGROUP(ATB,   NAND,  IDE,       NAND,      GMI,       SDIO4,         IDE,       0x14, 1,  0x80, 16, 0xA0, 2),
 	PINGROUP(ATC,   NAND,  IDE,       NAND,      GMI,       SDIO4,         IDE,       0x14, 2,  0x80, 22, 0xA0, 4),
@@ -226,3 +231,14 @@ const struct tegra_pingroup_desc tegra_soc_pingroups[TEGRA_MAX_PINGROUP] = {
 	PINGROUP(XM2C,  DDR,   RSVD,      RSVD,      RSVD,      RSVD,          RSVD,      -1,   -1, -1,   -1, 0xA8, 30),
 	PINGROUP(XM2D,  DDR,   RSVD,      RSVD,      RSVD,      RSVD,          RSVD,      -1,   -1, -1,   -1, 0xA8, 28),
 };
+
+void __devinit tegra20_pinmux_init(const struct tegra_pingroup_desc **pg,
+		int *pg_max, const struct tegra_drive_pingroup_desc **pgdrive,
+		int *pgdrive_max)
+{
+	*pg = tegra_soc_pingroups;
+	*pg_max = TEGRA_MAX_PINGROUP;
+	*pgdrive = tegra_soc_drive_pingroups;
+	*pgdrive_max = TEGRA_MAX_DRIVE_PINGROUP;
+}
+
diff --git a/arch/arm/mach-tegra/pinmux-tegra30-tables.c b/arch/arm/mach-tegra/pinmux-tegra30-tables.c
new file mode 100644
index 000000000000..14fc0e4c1c44
--- /dev/null
+++ b/arch/arm/mach-tegra/pinmux-tegra30-tables.c
@@ -0,0 +1,376 @@
+/*
+ * linux/arch/arm/mach-tegra/pinmux-tegra30-tables.c
+ *
+ * Common pinmux configurations for Tegra30 SoCs
+ *
+ * Copyright (C) 2010,2011 NVIDIA Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/spinlock.h>
+#include <linux/io.h>
+#include <linux/init.h>
+#include <linux/string.h>
+
+#include <mach/iomap.h>
+#include <mach/pinmux.h>
+#include <mach/pinmux-tegra30.h>
+#include <mach/suspend.h>
+
+#define PINGROUP_REG_A	0x868
+#define MUXCTL_REG_A	0x3000
+
+#define DRIVE_PINGROUP(pg_name, r)		\
+	[TEGRA_DRIVE_PINGROUP_ ## pg_name] = {	\
+		.name = #pg_name,		\
+		.reg_bank = 0,			\
+		.reg = ((r) - PINGROUP_REG_A)	\
+	}
+
+static const struct tegra_drive_pingroup_desc tegra_soc_drive_pingroups[TEGRA_MAX_DRIVE_PINGROUP] = {
+	DRIVE_PINGROUP(AO1,		0x868),
+	DRIVE_PINGROUP(AO2,		0x86c),
+	DRIVE_PINGROUP(AT1,		0x870),
+	DRIVE_PINGROUP(AT2,		0x874),
+	DRIVE_PINGROUP(AT3,		0x878),
+	DRIVE_PINGROUP(AT4,		0x87c),
+	DRIVE_PINGROUP(AT5,		0x880),
+	DRIVE_PINGROUP(CDEV1,		0x884),
+	DRIVE_PINGROUP(CDEV2,		0x888),
+	DRIVE_PINGROUP(CSUS,		0x88c),
+	DRIVE_PINGROUP(DAP1,		0x890),
+	DRIVE_PINGROUP(DAP2,		0x894),
+	DRIVE_PINGROUP(DAP3,		0x898),
+	DRIVE_PINGROUP(DAP4,		0x89c),
+	DRIVE_PINGROUP(DBG,		0x8a0),
+	DRIVE_PINGROUP(LCD1,		0x8a4),
+	DRIVE_PINGROUP(LCD2,		0x8a8),
+	DRIVE_PINGROUP(SDIO2,		0x8ac),
+	DRIVE_PINGROUP(SDIO3,		0x8b0),
+	DRIVE_PINGROUP(SPI,		0x8b4),
+	DRIVE_PINGROUP(UAA,		0x8b8),
+	DRIVE_PINGROUP(UAB,		0x8bc),
+	DRIVE_PINGROUP(UART2,		0x8c0),
+	DRIVE_PINGROUP(UART3,		0x8c4),
+	DRIVE_PINGROUP(VI1,		0x8c8),
+	DRIVE_PINGROUP(SDIO1,		0x8ec),
+	DRIVE_PINGROUP(CRT,		0x8f8),
+	DRIVE_PINGROUP(DDC,		0x8fc),
+	DRIVE_PINGROUP(GMA,		0x900),
+	DRIVE_PINGROUP(GMB,		0x904),
+	DRIVE_PINGROUP(GMC,		0x908),
+	DRIVE_PINGROUP(GMD,		0x90c),
+	DRIVE_PINGROUP(GME,		0x910),
+	DRIVE_PINGROUP(GMF,		0x914),
+	DRIVE_PINGROUP(GMG,		0x918),
+	DRIVE_PINGROUP(GMH,		0x91c),
+	DRIVE_PINGROUP(OWR,		0x920),
+	DRIVE_PINGROUP(UAD,		0x924),
+	DRIVE_PINGROUP(GPV,		0x928),
+	DRIVE_PINGROUP(DEV3,		0x92c),
+	DRIVE_PINGROUP(CEC,		0x938),
+};
+
+#define PINGROUP(pg_name, vdd, f0, f1, f2, f3, fs, iod, reg)	\
+	[TEGRA_PINGROUP_ ## pg_name] = {			\
+		.name = #pg_name,				\
+		.vddio = TEGRA_VDDIO_ ## vdd,			\
+		.funcs = {					\
+			TEGRA_MUX_ ## f0,			\
+			TEGRA_MUX_ ## f1,			\
+			TEGRA_MUX_ ## f2,			\
+			TEGRA_MUX_ ## f3,			\
+		},						\
+		.func_safe = TEGRA_MUX_ ## fs,			\
+		.tri_bank = 1,					\
+		.tri_reg = ((reg) - MUXCTL_REG_A),		\
+		.tri_bit = 4,					\
+		.mux_bank = 1,					\
+		.mux_reg = ((reg) - MUXCTL_REG_A),		\
+		.mux_bit = 0,					\
+		.pupd_bank = 1,					\
+		.pupd_reg = ((reg) - MUXCTL_REG_A),		\
+		.pupd_bit = 2,					\
+		.io_default = TEGRA_PIN_ ## iod,		\
+		.od_bit = 6,					\
+		.lock_bit = 7,					\
+		.ioreset_bit = 8,				\
+	}
+
+static const struct tegra_pingroup_desc tegra_soc_pingroups[TEGRA_MAX_PINGROUP] = {
+	/*       NAME		  VDD	    f0		f1          f2          f3          fSafe       io	reg */
+	PINGROUP(ULPI_DATA0,	  BB,	    SPI3,	HSI,	    UARTA,	ULPI,	    RSVD,	INPUT,	0x3000),
+	PINGROUP(ULPI_DATA1,	  BB,	    SPI3,	HSI,	    UARTA,	ULPI,	    RSVD,	INPUT,	0x3004),
+	PINGROUP(ULPI_DATA2,	  BB,	    SPI3,	HSI,	    UARTA,	ULPI,	    RSVD,	INPUT,	0x3008),
+	PINGROUP(ULPI_DATA3,	  BB,	    SPI3,	HSI,	    UARTA,	ULPI,	    RSVD,	INPUT,	0x300c),
+	PINGROUP(ULPI_DATA4,	  BB,	    SPI2,	HSI,	    UARTA,	ULPI,	    RSVD,	INPUT,	0x3010),
+	PINGROUP(ULPI_DATA5,	  BB,	    SPI2,	HSI,	    UARTA,	ULPI,	    RSVD,	INPUT,	0x3014),
+	PINGROUP(ULPI_DATA6,	  BB,	    SPI2,	HSI,	    UARTA,	ULPI,	    RSVD,	INPUT,	0x3018),
+	PINGROUP(ULPI_DATA7,	  BB,	    SPI2,	HSI,	    UARTA,	ULPI,	    RSVD,	INPUT,	0x301c),
+	PINGROUP(ULPI_CLK,	  BB,	    SPI1,	RSVD,	    UARTD,	ULPI,	    RSVD,	INPUT,	0x3020),
+	PINGROUP(ULPI_DIR,	  BB,	    SPI1,	RSVD,	    UARTD,	ULPI,	    RSVD,	INPUT,	0x3024),
+	PINGROUP(ULPI_NXT,	  BB,	    SPI1,	RSVD,	    UARTD,	ULPI,	    RSVD,	INPUT,	0x3028),
+	PINGROUP(ULPI_STP,	  BB,	    SPI1,	RSVD,	    UARTD,	ULPI,	    RSVD,	INPUT,	0x302c),
+	PINGROUP(DAP3_FS,	  BB,	    I2S2,	RSVD1,	    DISPLAYA,	DISPLAYB,   RSVD,	INPUT,	0x3030),
+	PINGROUP(DAP3_DIN,	  BB,	    I2S2,	RSVD1,	    DISPLAYA,	DISPLAYB,   RSVD,	INPUT,	0x3034),
+	PINGROUP(DAP3_DOUT,	  BB,	    I2S2,	RSVD1,	    DISPLAYA,	DISPLAYB,   RSVD,	INPUT,	0x3038),
+	PINGROUP(DAP3_SCLK,	  BB,	    I2S2,	RSVD1,	    DISPLAYA,	DISPLAYB,   RSVD,	INPUT,	0x303c),
+	PINGROUP(GPIO_PV0,	  BB,	    RSVD,	RSVD,	    RSVD,	RSVD,	    RSVD,	INPUT,	0x3040),
+	PINGROUP(GPIO_PV1,	  BB,	    RSVD,	RSVD,	    RSVD,	RSVD,	    RSVD,	INPUT,	0x3044),
+	PINGROUP(SDMMC1_CLK,	  SDMMC1,   SDIO1,	RSVD1,	    RSVD2,	INVALID,    RSVD,	INPUT,	0x3048),
+	PINGROUP(SDMMC1_CMD,	  SDMMC1,   SDIO1,	RSVD1,	    RSVD2,	INVALID,    RSVD,	INPUT,	0x304c),
+	PINGROUP(SDMMC1_DAT3,	  SDMMC1,   SDIO1,	RSVD1,	    UARTE,	INVALID,    RSVD,	INPUT,	0x3050),
+	PINGROUP(SDMMC1_DAT2,	  SDMMC1,   SDIO1,	RSVD1,	    UARTE,	INVALID,    RSVD,	INPUT,	0x3054),
+	PINGROUP(SDMMC1_DAT1,	  SDMMC1,   SDIO1,	RSVD1,	    UARTE,	INVALID,    RSVD,	INPUT,	0x3058),
+	PINGROUP(SDMMC1_DAT0,	  SDMMC1,   SDIO1,	RSVD1,	    UARTE,	INVALID,    RSVD,	INPUT,	0x305c),
+	PINGROUP(GPIO_PV2,	  SDMMC1,   OWR,	RSVD1,	    RSVD2,	RSVD3,	    RSVD,	INPUT,	0x3060),
+	PINGROUP(GPIO_PV3,	  SDMMC1,   INVALID,	RSVD1,	    RSVD2,	RSVD3,	    RSVD,	INPUT,	0x3064),
+	PINGROUP(CLK2_OUT,	  SDMMC1,   EXTPERIPH2,	RSVD1,	    RSVD2,	RSVD3,	    RSVD,	INPUT,	0x3068),
+	PINGROUP(CLK2_REQ,	  SDMMC1,   DAP,	RSVD1,	    RSVD2,	RSVD3,	    RSVD,	INPUT,	0x306c),
+	PINGROUP(LCD_PWR1,	  LCD,	    DISPLAYA,	DISPLAYB,   RSVD1,	RSVD2,	    RSVD,	OUTPUT,	0x3070),
+	PINGROUP(LCD_PWR2,	  LCD,	    DISPLAYA,	DISPLAYB,   SPI5,	INVALID,    RSVD,	OUTPUT,	0x3074),
+	PINGROUP(LCD_SDIN,	  LCD,	    DISPLAYA,	DISPLAYB,   SPI5,	RSVD,	    RSVD,	OUTPUT,	0x3078),
+	PINGROUP(LCD_SDOUT,	  LCD,	    DISPLAYA,	DISPLAYB,   SPI5,	INVALID,    RSVD,	OUTPUT,	0x307c),
+	PINGROUP(LCD_WR_N,	  LCD,	    DISPLAYA,	DISPLAYB,   SPI5,	INVALID,    RSVD,	OUTPUT,	0x3080),
+	PINGROUP(LCD_CS0_N,	  LCD,	    DISPLAYA,	DISPLAYB,   SPI5,	RSVD,	    RSVD,	OUTPUT,	0x3084),
+	PINGROUP(LCD_DC0,	  LCD,	    DISPLAYA,	DISPLAYB,   RSVD1,	RSVD2,	    RSVD,	OUTPUT,	0x3088),
+	PINGROUP(LCD_SCK,	  LCD,	    DISPLAYA,	DISPLAYB,   SPI5,	INVALID,    RSVD,	OUTPUT,	0x308c),
+	PINGROUP(LCD_PWR0,	  LCD,	    DISPLAYA,	DISPLAYB,   SPI5,	INVALID,    RSVD,	OUTPUT,	0x3090),
+	PINGROUP(LCD_PCLK,	  LCD,	    DISPLAYA,	DISPLAYB,   RSVD1,	RSVD2,	    RSVD,	OUTPUT,	0x3094),
+	PINGROUP(LCD_DE,	  LCD,	    DISPLAYA,	DISPLAYB,   RSVD1,	RSVD2,	    RSVD,	OUTPUT,	0x3098),
+	PINGROUP(LCD_HSYNC,	  LCD,	    DISPLAYA,	DISPLAYB,   RSVD1,	RSVD2,	    RSVD,	OUTPUT,	0x309c),
+	PINGROUP(LCD_VSYNC,	  LCD,	    DISPLAYA,	DISPLAYB,   RSVD1,	RSVD2,	    RSVD,	OUTPUT,	0x30a0),
+	PINGROUP(LCD_D0,	  LCD,	    DISPLAYA,	DISPLAYB,   RSVD1,	RSVD2,	    RSVD,	OUTPUT,	0x30a4),
+	PINGROUP(LCD_D1,	  LCD,	    DISPLAYA,	DISPLAYB,   RSVD1,	RSVD2,	    RSVD,	OUTPUT,	0x30a8),
+	PINGROUP(LCD_D2,	  LCD,	    DISPLAYA,	DISPLAYB,   RSVD1,	RSVD2,	    RSVD,	OUTPUT,	0x30ac),
+	PINGROUP(LCD_D3,	  LCD,	    DISPLAYA,	DISPLAYB,   RSVD1,	RSVD2,	    RSVD,	OUTPUT,	0x30b0),
+	PINGROUP(LCD_D4,	  LCD,	    DISPLAYA,	DISPLAYB,   RSVD1,	RSVD2,	    RSVD,	OUTPUT,	0x30b4),
+	PINGROUP(LCD_D5,	  LCD,	    DISPLAYA,	DISPLAYB,   RSVD1,	RSVD2,	    RSVD,	OUTPUT,	0x30b8),
+	PINGROUP(LCD_D6,	  LCD,	    DISPLAYA,	DISPLAYB,   RSVD1,	RSVD2,	    RSVD,	OUTPUT,	0x30bc),
+	PINGROUP(LCD_D7,	  LCD,	    DISPLAYA,	DISPLAYB,   RSVD1,	RSVD2,	    RSVD,	OUTPUT,	0x30c0),
+	PINGROUP(LCD_D8,	  LCD,	    DISPLAYA,	DISPLAYB,   RSVD1,	RSVD2,	    RSVD,	OUTPUT,	0x30c4),
+	PINGROUP(LCD_D9,	  LCD,	    DISPLAYA,	DISPLAYB,   RSVD1,	RSVD2,	    RSVD,	OUTPUT,	0x30c8),
+	PINGROUP(LCD_D10,	  LCD,	    DISPLAYA,	DISPLAYB,   RSVD1,	RSVD2,	    RSVD,	OUTPUT,	0x30cc),
+	PINGROUP(LCD_D11,	  LCD,	    DISPLAYA,	DISPLAYB,   RSVD1,	RSVD2,	    RSVD,	OUTPUT,	0x30d0),
+	PINGROUP(LCD_D12,	  LCD,	    DISPLAYA,	DISPLAYB,   RSVD1,	RSVD2,	    RSVD,	OUTPUT,	0x30d4),
+	PINGROUP(LCD_D13,	  LCD,	    DISPLAYA,	DISPLAYB,   RSVD1,	RSVD2,	    RSVD,	OUTPUT,	0x30d8),
+	PINGROUP(LCD_D14,	  LCD,	    DISPLAYA,	DISPLAYB,   RSVD1,	RSVD2,	    RSVD,	OUTPUT,	0x30dc),
+	PINGROUP(LCD_D15,	  LCD,	    DISPLAYA,	DISPLAYB,   RSVD1,	RSVD2,	    RSVD,	OUTPUT,	0x30e0),
+	PINGROUP(LCD_D16,	  LCD,	    DISPLAYA,	DISPLAYB,   RSVD1,	RSVD2,	    RSVD,	OUTPUT,	0x30e4),
+	PINGROUP(LCD_D17,	  LCD,	    DISPLAYA,	DISPLAYB,   RSVD1,	RSVD2,	    RSVD,	OUTPUT,	0x30e8),
+	PINGROUP(LCD_D18,	  LCD,	    DISPLAYA,	DISPLAYB,   RSVD1,	RSVD2,	    RSVD,	OUTPUT,	0x30ec),
+	PINGROUP(LCD_D19,	  LCD,	    DISPLAYA,	DISPLAYB,   RSVD1,	RSVD2,	    RSVD,	OUTPUT,	0x30f0),
+	PINGROUP(LCD_D20,	  LCD,	    DISPLAYA,	DISPLAYB,   RSVD1,	RSVD2,	    RSVD,	OUTPUT,	0x30f4),
+	PINGROUP(LCD_D21,	  LCD,	    DISPLAYA,	DISPLAYB,   RSVD1,	RSVD2,	    RSVD,	OUTPUT,	0x30f8),
+	PINGROUP(LCD_D22,	  LCD,	    DISPLAYA,	DISPLAYB,   RSVD1,	RSVD2,	    RSVD,	OUTPUT,	0x30fc),
+	PINGROUP(LCD_D23,	  LCD,	    DISPLAYA,	DISPLAYB,   RSVD1,	RSVD2,	    RSVD,	OUTPUT,	0x3100),
+	PINGROUP(LCD_CS1_N,	  LCD,	    DISPLAYA,	DISPLAYB,   SPI5,	RSVD2,	    RSVD,	OUTPUT,	0x3104),
+	PINGROUP(LCD_M1,	  LCD,	    DISPLAYA,	DISPLAYB,   RSVD1,	RSVD2,	    RSVD,	OUTPUT,	0x3108),
+	PINGROUP(LCD_DC1,	  LCD,	    DISPLAYA,	DISPLAYB,   RSVD1,	RSVD2,	    RSVD,	OUTPUT,	0x310c),
+	PINGROUP(HDMI_INT,	  LCD,	    RSVD,	RSVD,	    RSVD,	RSVD,	    RSVD,	INPUT,	0x3110),
+	PINGROUP(DDC_SCL,	  LCD,	    I2C4,	RSVD1,	    RSVD2,	RSVD3,	    RSVD,	INPUT,	0x3114),
+	PINGROUP(DDC_SDA,	  LCD,	    I2C4,	RSVD1,	    RSVD2,	RSVD3,	    RSVD,	INPUT,	0x3118),
+	PINGROUP(CRT_HSYNC,	  LCD,	    CRT,	RSVD1,	    RSVD2,	RSVD3,	    RSVD,	INPUT,	0x311c),
+	PINGROUP(CRT_VSYNC,	  LCD,	    CRT,	RSVD1,	    RSVD2,	RSVD3,	    RSVD,	INPUT,	0x3120),
+	PINGROUP(VI_D0,		  VI,	    INVALID,	RSVD1,	    VI,		RSVD2,	    RSVD,	INPUT,	0x3124),
+	PINGROUP(VI_D1,		  VI,	    INVALID,	SDIO2,	    VI,		RSVD1,	    RSVD,	INPUT,	0x3128),
+	PINGROUP(VI_D2,		  VI,	    INVALID,	SDIO2,	    VI,		RSVD1,	    RSVD,	INPUT,	0x312c),
+	PINGROUP(VI_D3,		  VI,	    INVALID,	SDIO2,	    VI,		RSVD1,	    RSVD,	INPUT,	0x3130),
+	PINGROUP(VI_D4,		  VI,	    INVALID,	SDIO2,	    VI,		RSVD1,	    RSVD,	INPUT,	0x3134),
+	PINGROUP(VI_D5,		  VI,	    INVALID,	SDIO2,	    VI,		RSVD1,	    RSVD,	INPUT,	0x3138),
+	PINGROUP(VI_D6,		  VI,	    INVALID,	SDIO2,	    VI,		RSVD1,	    RSVD,	INPUT,	0x313c),
+	PINGROUP(VI_D7,		  VI,	    INVALID,	SDIO2,	    VI,		RSVD1,	    RSVD,	INPUT,	0x3140),
+	PINGROUP(VI_D8,		  VI,	    INVALID,	SDIO2,	    VI,		RSVD1,	    RSVD,	INPUT,	0x3144),
+	PINGROUP(VI_D9,		  VI,	    INVALID,	SDIO2,	    VI,		RSVD1,	    RSVD,	INPUT,	0x3148),
+	PINGROUP(VI_D10,	  VI,	    INVALID,	RSVD1,	    VI,		RSVD2,	    RSVD,	INPUT,	0x314c),
+	PINGROUP(VI_D11,	  VI,	    INVALID,	RSVD1,	    VI,		RSVD2,	    RSVD,	INPUT,	0x3150),
+	PINGROUP(VI_PCLK,	  VI,	    RSVD1,	SDIO2,	    VI,		RSVD2,	    RSVD,	INPUT,	0x3154),
+	PINGROUP(VI_MCLK,	  VI,	    VI,		INVALID,    INVALID,	INVALID,    RSVD,	INPUT,	0x3158),
+	PINGROUP(VI_VSYNC,	  VI,	    INVALID,	RSVD1,	    VI,		RSVD2,	    RSVD,	INPUT,	0x315c),
+	PINGROUP(VI_HSYNC,	  VI,	    INVALID,	RSVD1,	    VI,		RSVD2,	    RSVD,	INPUT,	0x3160),
+	PINGROUP(UART2_RXD,	  UART,	    IRDA,	SPDIF,	    UARTA,	SPI4,	    RSVD,	INPUT,	0x3164),
+	PINGROUP(UART2_TXD,	  UART,	    IRDA,	SPDIF,	    UARTA,	SPI4,	    RSVD,	INPUT,	0x3168),
+	PINGROUP(UART2_RTS_N,	  UART,	    UARTA,	UARTB,	    GMI,	SPI4,	    RSVD,	INPUT,	0x316c),
+	PINGROUP(UART2_CTS_N,	  UART,	    UARTA,	UARTB,	    GMI,	SPI4,	    RSVD,	INPUT,	0x3170),
+	PINGROUP(UART3_TXD,	  UART,	    UARTC,	RSVD1,	    GMI,	RSVD2,	    RSVD,	INPUT,	0x3174),
+	PINGROUP(UART3_RXD,	  UART,	    UARTC,	RSVD1,	    GMI,	RSVD2,	    RSVD,	INPUT,	0x3178),
+	PINGROUP(UART3_CTS_N,	  UART,	    UARTC,	RSVD1,	    GMI,	RSVD2,	    RSVD,	INPUT,	0x317c),
+	PINGROUP(UART3_RTS_N,	  UART,	    UARTC,	PWM0,	    GMI,	RSVD2,	    RSVD,	INPUT,	0x3180),
+	PINGROUP(GPIO_PU0,	  UART,	    OWR,	UARTA,	    GMI,	RSVD1,	    RSVD,	INPUT,	0x3184),
+	PINGROUP(GPIO_PU1,	  UART,	    RSVD1,	UARTA,	    GMI,	RSVD2,	    RSVD,	INPUT,	0x3188),
+	PINGROUP(GPIO_PU2,	  UART,	    RSVD1,	UARTA,	    GMI,	RSVD2,	    RSVD,	INPUT,	0x318c),
+	PINGROUP(GPIO_PU3,	  UART,	    PWM0,	UARTA,	    GMI,	RSVD1,	    RSVD,	INPUT,	0x3190),
+	PINGROUP(GPIO_PU4,	  UART,	    PWM1,	UARTA,	    GMI,	RSVD1,	    RSVD,	INPUT,	0x3194),
+	PINGROUP(GPIO_PU5,	  UART,	    PWM2,	UARTA,	    GMI,	RSVD1,	    RSVD,	INPUT,	0x3198),
+	PINGROUP(GPIO_PU6,	  UART,	    PWM3,	UARTA,	    GMI,	RSVD1,	    RSVD,	INPUT,	0x319c),
+	PINGROUP(GEN1_I2C_SDA,	  UART,	    I2C,	RSVD1,	    RSVD2,	RSVD3,	    RSVD,	INPUT,	0x31a0),
+	PINGROUP(GEN1_I2C_SCL,	  UART,	    I2C,	RSVD1,	    RSVD2,	RSVD3,	    RSVD,	INPUT,	0x31a4),
+	PINGROUP(DAP4_FS,	  UART,	    I2S3,	RSVD1,	    GMI,	RSVD2,	    RSVD,	INPUT,	0x31a8),
+	PINGROUP(DAP4_DIN,	  UART,	    I2S3,	RSVD1,	    GMI,	RSVD2,	    RSVD,	INPUT,	0x31ac),
+	PINGROUP(DAP4_DOUT,	  UART,	    I2S3,	RSVD1,	    GMI,	RSVD2,	    RSVD,	INPUT,	0x31b0),
+	PINGROUP(DAP4_SCLK,	  UART,	    I2S3,	RSVD1,	    GMI,	RSVD2,	    RSVD,	INPUT,	0x31b4),
+	PINGROUP(CLK3_OUT,	  UART,	    EXTPERIPH3,	RSVD1,	    RSVD2,	RSVD3,	    RSVD,	INPUT,	0x31b8),
+	PINGROUP(CLK3_REQ,	  UART,	    DEV3,	RSVD1,	    RSVD2,	RSVD3,	    RSVD,	INPUT,	0x31bc),
+	PINGROUP(GMI_WP_N,	  GMI,	    RSVD1,	NAND,	    GMI,	GMI_ALT,    RSVD,	INPUT,	0x31c0),
+	PINGROUP(GMI_IORDY,	  GMI,	    RSVD1,	NAND,	    GMI,	RSVD2,	    RSVD,	INPUT,	0x31c4),
+	PINGROUP(GMI_WAIT,	  GMI,	    RSVD1,	NAND,	    GMI,	RSVD2,	    RSVD,	INPUT,	0x31c8),
+	PINGROUP(GMI_ADV_N,	  GMI,	    RSVD1,	NAND,	    GMI,	RSVD2,	    RSVD,	INPUT,	0x31cc),
+	PINGROUP(GMI_CLK,	  GMI,	    RSVD1,	NAND,	    GMI,	RSVD2,	    RSVD,	INPUT,	0x31d0),
+	PINGROUP(GMI_CS0_N,	  GMI,	    RSVD1,	NAND,	    GMI,	INVALID,    RSVD,	INPUT,	0x31d4),
+	PINGROUP(GMI_CS1_N,	  GMI,	    RSVD1,	NAND,	    GMI,	DTV,	    RSVD,	INPUT,	0x31d8),
+	PINGROUP(GMI_CS2_N,	  GMI,	    RSVD1,	NAND,	    GMI,	RSVD2,	    RSVD,	INPUT,	0x31dc),
+	PINGROUP(GMI_CS3_N,	  GMI,	    RSVD1,	NAND,	    GMI,	GMI_ALT,    RSVD,	INPUT,	0x31e0),
+	PINGROUP(GMI_CS4_N,	  GMI,	    RSVD1,	NAND,	    GMI,	RSVD2,	    RSVD,	INPUT,	0x31e4),
+	PINGROUP(GMI_CS6_N,	  GMI,	    NAND,	NAND_ALT,   GMI,	SATA,	    RSVD,	INPUT,	0x31e8),
+	PINGROUP(GMI_CS7_N,	  GMI,	    NAND,	NAND_ALT,   GMI,	GMI_ALT,    RSVD,	INPUT,	0x31ec),
+	PINGROUP(GMI_AD0,	  GMI,	    RSVD1,	NAND,	    GMI,	RSVD2,	    RSVD,	INPUT,	0x31f0),
+	PINGROUP(GMI_AD1,	  GMI,	    RSVD1,	NAND,	    GMI,	RSVD2,	    RSVD,	INPUT,	0x31f4),
+	PINGROUP(GMI_AD2,	  GMI,	    RSVD1,	NAND,	    GMI,	RSVD2,	    RSVD,	INPUT,	0x31f8),
+	PINGROUP(GMI_AD3,	  GMI,	    RSVD1,	NAND,	    GMI,	RSVD2,	    RSVD,	INPUT,	0x31fc),
+	PINGROUP(GMI_AD4,	  GMI,	    RSVD1,	NAND,	    GMI,	RSVD2,	    RSVD,	INPUT,	0x3200),
+	PINGROUP(GMI_AD5,	  GMI,	    RSVD1,	NAND,	    GMI,	RSVD2,	    RSVD,	INPUT,	0x3204),
+	PINGROUP(GMI_AD6,	  GMI,	    RSVD1,	NAND,	    GMI,	RSVD2,	    RSVD,	INPUT,	0x3208),
+	PINGROUP(GMI_AD7,	  GMI,	    RSVD1,	NAND,	    GMI,	RSVD2,	    RSVD,	INPUT,	0x320c),
+	PINGROUP(GMI_AD8,	  GMI,	    PWM0,	NAND,	    GMI,	RSVD2,	    RSVD,	INPUT,	0x3210),
+	PINGROUP(GMI_AD9,	  GMI,	    PWM1,	NAND,	    GMI,	RSVD2,	    RSVD,	INPUT,	0x3214),
+	PINGROUP(GMI_AD10,	  GMI,	    PWM2,	NAND,	    GMI,	RSVD2,	    RSVD,	INPUT,	0x3218),
+	PINGROUP(GMI_AD11,	  GMI,	    PWM3,	NAND,	    GMI,	RSVD2,	    RSVD,	INPUT,	0x321c),
+	PINGROUP(GMI_AD12,	  GMI,	    RSVD1,	NAND,	    GMI,	RSVD2,	    RSVD,	INPUT,	0x3220),
+	PINGROUP(GMI_AD13,	  GMI,	    RSVD1,	NAND,	    GMI,	RSVD2,	    RSVD,	INPUT,	0x3224),
+	PINGROUP(GMI_AD14,	  GMI,	    RSVD1,	NAND,	    GMI,	RSVD2,	    RSVD,	INPUT,	0x3228),
+	PINGROUP(GMI_AD15,	  GMI,	    RSVD1,	NAND,	    GMI,	RSVD2,	    RSVD,	INPUT,	0x322c),
+	PINGROUP(GMI_A16,	  GMI,	    UARTD,	SPI4,	    GMI,	GMI_ALT,    RSVD,	INPUT,	0x3230),
+	PINGROUP(GMI_A17,	  GMI,	    UARTD,	SPI4,	    GMI,	INVALID,    RSVD,	INPUT,	0x3234),
+	PINGROUP(GMI_A18,	  GMI,	    UARTD,	SPI4,	    GMI,	INVALID,    RSVD,	INPUT,	0x3238),
+	PINGROUP(GMI_A19,	  GMI,	    UARTD,	SPI4,	    GMI,	RSVD3,	    RSVD,	INPUT,	0x323c),
+	PINGROUP(GMI_WR_N,	  GMI,	    RSVD1,	NAND,	    GMI,	RSVD3,	    RSVD,	INPUT,	0x3240),
+	PINGROUP(GMI_OE_N,	  GMI,	    RSVD1,	NAND,	    GMI,	RSVD3,	    RSVD,	INPUT,	0x3244),
+	PINGROUP(GMI_DQS,	  GMI,	    RSVD1,	NAND,	    GMI,	RSVD3,	    RSVD,	INPUT,	0x3248),
+	PINGROUP(GMI_RST_N,	  GMI,	    NAND,	NAND_ALT,   GMI,	RSVD3,	    RSVD,	INPUT,	0x324c),
+	PINGROUP(GEN2_I2C_SCL,	  GMI,	    I2C2,	INVALID,    GMI,	RSVD3,	    RSVD,	INPUT,	0x3250),
+	PINGROUP(GEN2_I2C_SDA,	  GMI,	    I2C2,	INVALID,    GMI,	RSVD3,	    RSVD,	INPUT,	0x3254),
+	PINGROUP(SDMMC4_CLK,	  SDMMC4,   INVALID,	NAND,	    GMI,	SDIO4,	    RSVD,	INPUT,	0x3258),
+	PINGROUP(SDMMC4_CMD,	  SDMMC4,   I2C3,	NAND,	    GMI,	SDIO4,	    RSVD,	INPUT,	0x325c),
+	PINGROUP(SDMMC4_DAT0,	  SDMMC4,   UARTE,	SPI3,	    GMI,	SDIO4,	    RSVD,	INPUT,	0x3260),
+	PINGROUP(SDMMC4_DAT1,	  SDMMC4,   UARTE,	SPI3,	    GMI,	SDIO4,	    RSVD,	INPUT,	0x3264),
+	PINGROUP(SDMMC4_DAT2,	  SDMMC4,   UARTE,	SPI3,	    GMI,	SDIO4,	    RSVD,	INPUT,	0x3268),
+	PINGROUP(SDMMC4_DAT3,	  SDMMC4,   UARTE,	SPI3,	    GMI,	SDIO4,	    RSVD,	INPUT,	0x326c),
+	PINGROUP(SDMMC4_DAT4,	  SDMMC4,   I2C3,	I2S4,	    GMI,	SDIO4,	    RSVD,	INPUT,	0x3270),
+	PINGROUP(SDMMC4_DAT5,	  SDMMC4,   VGP3,	I2S4,	    GMI,	SDIO4,	    RSVD,	INPUT,	0x3274),
+	PINGROUP(SDMMC4_DAT6,	  SDMMC4,   VGP4,	I2S4,	    GMI,	SDIO4,	    RSVD,	INPUT,	0x3278),
+	PINGROUP(SDMMC4_DAT7,	  SDMMC4,   VGP5,	I2S4,	    GMI,	SDIO4,	    RSVD,	INPUT,	0x327c),
+	PINGROUP(SDMMC4_RST_N,	  SDMMC4,   VGP6,	RSVD1,	    RSVD2,	POPSDMMC4,  RSVD,	INPUT,	0x3280),
+	PINGROUP(CAM_MCLK,	  CAM,	    VI,		INVALID,    VI_ALT2,	POPSDMMC4,  RSVD,	INPUT,	0x3284),
+	PINGROUP(GPIO_PCC1,	  CAM,	    I2S4,	RSVD1,	    RSVD2,	POPSDMMC4,  RSVD,	INPUT,	0x3288),
+	PINGROUP(GPIO_PBB0,	  CAM,	    I2S4,	RSVD1,	    RSVD2,	POPSDMMC4,  RSVD,	INPUT,	0x328c),
+	PINGROUP(CAM_I2C_SCL,	  CAM,	    INVALID,	I2C3,	    RSVD2,	POPSDMMC4,  RSVD,	INPUT,	0x3290),
+	PINGROUP(CAM_I2C_SDA,	  CAM,	    INVALID,	I2C3,	    RSVD2,	POPSDMMC4,  RSVD,	INPUT,	0x3294),
+	PINGROUP(GPIO_PBB3,	  CAM,	    VGP3,	DISPLAYA,   DISPLAYB,	POPSDMMC4,  RSVD,	INPUT,	0x3298),
+	PINGROUP(GPIO_PBB4,	  CAM,	    VGP4,	DISPLAYA,   DISPLAYB,	POPSDMMC4,  RSVD,	INPUT,	0x329c),
+	PINGROUP(GPIO_PBB5,	  CAM,	    VGP5,	DISPLAYA,   DISPLAYB,	POPSDMMC4,  RSVD,	INPUT,	0x32a0),
+	PINGROUP(GPIO_PBB6,	  CAM,	    VGP6,	DISPLAYA,   DISPLAYB,	POPSDMMC4,  RSVD,	INPUT,	0x32a4),
+	PINGROUP(GPIO_PBB7,	  CAM,	    I2S4,	RSVD1,	    RSVD2,	POPSDMMC4,  RSVD,	INPUT,	0x32a8),
+	PINGROUP(GPIO_PCC2,	  CAM,	    I2S4,	RSVD1,	    RSVD2,	RSVD3,	    RSVD,	INPUT,	0x32ac),
+	PINGROUP(JTAG_RTCK,	  SYS,	    RTCK,	RSVD1,	    RSVD2,	RSVD3,	    RSVD,	INPUT,	0x32b0),
+	PINGROUP(PWR_I2C_SCL,	  SYS,	    I2CPWR,	RSVD1,	    RSVD2,	RSVD3,	    RSVD,	INPUT,	0x32b4),
+	PINGROUP(PWR_I2C_SDA,	  SYS,	    I2CPWR,	RSVD1,	    RSVD2,	RSVD3,	    RSVD,	INPUT,	0x32b8),
+	PINGROUP(KB_ROW0,	  SYS,	    KBC,	INVALID,    RSVD2,	RSVD3,	    RSVD,	INPUT,	0x32bc),
+	PINGROUP(KB_ROW1,	  SYS,	    KBC,	INVALID,    RSVD2,	RSVD3,	    RSVD,	INPUT,	0x32c0),
+	PINGROUP(KB_ROW2,	  SYS,	    KBC,	INVALID,    RSVD2,	RSVD3,	    RSVD,	INPUT,	0x32c4),
+	PINGROUP(KB_ROW3,	  SYS,	    KBC,	INVALID,    RSVD2,	INVALID,    RSVD,	INPUT,	0x32c8),
+	PINGROUP(KB_ROW4,	  SYS,	    KBC,	INVALID,    TRACE,	RSVD3,	    RSVD,	INPUT,	0x32cc),
+	PINGROUP(KB_ROW5,	  SYS,	    KBC,	INVALID,    TRACE,	OWR,	    RSVD,	INPUT,	0x32d0),
+	PINGROUP(KB_ROW6,	  SYS,	    KBC,	INVALID,    SDIO2,	INVALID,    RSVD,	INPUT,	0x32d4),
+	PINGROUP(KB_ROW7,	  SYS,	    KBC,	INVALID,    SDIO2,	INVALID,    RSVD,	INPUT,	0x32d8),
+	PINGROUP(KB_ROW8,	  SYS,	    KBC,	INVALID,    SDIO2,	INVALID,    RSVD,	INPUT,	0x32dc),
+	PINGROUP(KB_ROW9,	  SYS,	    KBC,	INVALID,    SDIO2,	INVALID,    RSVD,	INPUT,	0x32e0),
+	PINGROUP(KB_ROW10,	  SYS,	    KBC,	INVALID,    SDIO2,	INVALID,    RSVD,	INPUT,	0x32e4),
+	PINGROUP(KB_ROW11,	  SYS,	    KBC,	INVALID,    SDIO2,	INVALID,    RSVD,	INPUT,	0x32e8),
+	PINGROUP(KB_ROW12,	  SYS,	    KBC,	INVALID,    SDIO2,	INVALID,    RSVD,	INPUT,	0x32ec),
+	PINGROUP(KB_ROW13,	  SYS,	    KBC,	INVALID,    SDIO2,	INVALID,    RSVD,	INPUT,	0x32f0),
+	PINGROUP(KB_ROW14,	  SYS,	    KBC,	INVALID,    SDIO2,	INVALID,    RSVD,	INPUT,	0x32f4),
+	PINGROUP(KB_ROW15,	  SYS,	    KBC,	INVALID,    SDIO2,	INVALID,    RSVD,	INPUT,	0x32f8),
+	PINGROUP(KB_COL0,	  SYS,	    KBC,	INVALID,    TRACE,	INVALID,    RSVD,	INPUT,	0x32fc),
+	PINGROUP(KB_COL1,	  SYS,	    KBC,	INVALID,    TRACE,	INVALID,    RSVD,	INPUT,	0x3300),
+	PINGROUP(KB_COL2,	  SYS,	    KBC,	INVALID,    TRACE,	RSVD,	    RSVD,	INPUT,	0x3304),
+	PINGROUP(KB_COL3,	  SYS,	    KBC,	INVALID,    TRACE,	RSVD,	    RSVD,	INPUT,	0x3308),
+	PINGROUP(KB_COL4,	  SYS,	    KBC,	INVALID,    TRACE,	RSVD,	    RSVD,	INPUT,	0x330c),
+	PINGROUP(KB_COL5,	  SYS,	    KBC,	INVALID,    TRACE,	RSVD,	    RSVD,	INPUT,	0x3310),
+	PINGROUP(KB_COL6,	  SYS,	    KBC,	INVALID,    TRACE,	INVALID,    RSVD,	INPUT,	0x3314),
+	PINGROUP(KB_COL7,	  SYS,	    KBC,	INVALID,    TRACE,	INVALID,    RSVD,	INPUT,	0x3318),
+	PINGROUP(CLK_32K_OUT,	  SYS,	    BLINK,	RSVD1,	    RSVD2,	RSVD3,	    RSVD,	INPUT,	0x331c),
+	PINGROUP(SYS_CLK_REQ,	  SYS,	    SYSCLK,	RSVD1,	    RSVD2,	RSVD3,	    RSVD,	INPUT,	0x3320),
+	PINGROUP(CORE_PWR_REQ,	  SYS,	    RSVD,	RSVD,	    RSVD,	RSVD,	    RSVD,	INPUT,	0x3324),
+	PINGROUP(CPU_PWR_REQ,	  SYS,	    RSVD,	RSVD,	    RSVD,	RSVD,	    RSVD,	INPUT,	0x3328),
+	PINGROUP(PWR_INT_N,	  SYS,	    RSVD,	RSVD,	    RSVD,	RSVD,	    RSVD,	INPUT,	0x332c),
+	PINGROUP(CLK_32K_IN,	  SYS,	    RSVD,	RSVD,	    RSVD,	RSVD,	    RSVD,	INPUT,	0x3330),
+	PINGROUP(OWR,		  SYS,	    OWR,	RSVD,	    RSVD,	RSVD,	    RSVD,	INPUT,	0x3334),
+	PINGROUP(DAP1_FS,	  AUDIO,    I2S0,	HDA,	    GMI,	SDIO2,	    RSVD,	INPUT,	0x3338),
+	PINGROUP(DAP1_DIN,	  AUDIO,    I2S0,	HDA,	    GMI,	SDIO2,	    RSVD,	INPUT,	0x333c),
+	PINGROUP(DAP1_DOUT,	  AUDIO,    I2S0,	HDA,	    GMI,	SDIO2,	    RSVD,	INPUT,	0x3340),
+	PINGROUP(DAP1_SCLK,	  AUDIO,    I2S0,	HDA,	    GMI,	SDIO2,	    RSVD,	INPUT,	0x3344),
+	PINGROUP(CLK1_REQ,	  AUDIO,    DAP,	HDA,	    RSVD2,	RSVD3,	    RSVD,	INPUT,	0x3348),
+	PINGROUP(CLK1_OUT,	  AUDIO,    EXTPERIPH1,	RSVD1,	    RSVD2,	RSVD3,	    RSVD,	INPUT,	0x334c),
+	PINGROUP(SPDIF_IN,	  AUDIO,    SPDIF,	HDA,	    INVALID,	DAPSDMMC2,  RSVD,	INPUT,	0x3350),
+	PINGROUP(SPDIF_OUT,	  AUDIO,    SPDIF,	RSVD1,	    INVALID,	DAPSDMMC2,  RSVD,	INPUT,	0x3354),
+	PINGROUP(DAP2_FS,	  AUDIO,    I2S1,	HDA,	    RSVD2,	GMI,	    RSVD,	INPUT,	0x3358),
+	PINGROUP(DAP2_DIN,	  AUDIO,    I2S1,	HDA,	    RSVD2,	GMI,	    RSVD,	INPUT,	0x335c),
+	PINGROUP(DAP2_DOUT,	  AUDIO,    I2S1,	HDA,	    RSVD2,	GMI,	    RSVD,	INPUT,	0x3360),
+	PINGROUP(DAP2_SCLK,	  AUDIO,    I2S1,	HDA,	    RSVD2,	GMI,	    RSVD,	INPUT,	0x3364),
+	PINGROUP(SPI2_MOSI,	  AUDIO,    SPI6,	SPI2,	    INVALID,	GMI,	    RSVD,	INPUT,	0x3368),
+	PINGROUP(SPI2_MISO,	  AUDIO,    SPI6,	SPI2,	    INVALID,	GMI,	    RSVD,	INPUT,	0x336c),
+	PINGROUP(SPI2_CS0_N,	  AUDIO,    SPI6,	SPI2,	    INVALID,	GMI,	    RSVD,	INPUT,	0x3370),
+	PINGROUP(SPI2_SCK,	  AUDIO,    SPI6,	SPI2,	    INVALID,	GMI,	    RSVD,	INPUT,	0x3374),
+	PINGROUP(SPI1_MOSI,	  AUDIO,    SPI2,	SPI1,	    INVALID,	GMI,	    RSVD,	INPUT,	0x3378),
+	PINGROUP(SPI1_SCK,	  AUDIO,    SPI2,	SPI1,	    INVALID,	GMI,	    RSVD,	INPUT,	0x337c),
+	PINGROUP(SPI1_CS0_N,	  AUDIO,    SPI2,	SPI1,	    INVALID,	GMI,	    RSVD,	INPUT,	0x3380),
+	PINGROUP(SPI1_MISO,	  AUDIO,    INVALID,	SPI1,	    INVALID,	RSVD3,	    RSVD,	INPUT,	0x3384),
+	PINGROUP(SPI2_CS1_N,	  AUDIO,    INVALID,	SPI2,	    INVALID,	INVALID,    RSVD,	INPUT,	0x3388),
+	PINGROUP(SPI2_CS2_N,	  AUDIO,    INVALID,	SPI2,	    INVALID,	INVALID,    RSVD,	INPUT,	0x338c),
+	PINGROUP(SDMMC3_CLK,	  SDMMC3,   UARTA,	PWM2,	    SDIO3,	INVALID,    RSVD,	INPUT,	0x3390),
+	PINGROUP(SDMMC3_CMD,	  SDMMC3,   UARTA,	PWM3,	    SDIO3,	INVALID,    RSVD,	INPUT,	0x3394),
+	PINGROUP(SDMMC3_DAT0,	  SDMMC3,   RSVD,	RSVD1,	    SDIO3,	INVALID,    RSVD,	INPUT,	0x3398),
+	PINGROUP(SDMMC3_DAT1,	  SDMMC3,   RSVD,	RSVD1,	    SDIO3,	INVALID,    RSVD,	INPUT,	0x339c),
+	PINGROUP(SDMMC3_DAT2,	  SDMMC3,   RSVD,	PWM1,	    SDIO3,	INVALID,    RSVD,	INPUT,	0x33a0),
+	PINGROUP(SDMMC3_DAT3,	  SDMMC3,   RSVD,	PWM0,	    SDIO3,	INVALID,    RSVD,	INPUT,	0x33a4),
+	PINGROUP(SDMMC3_DAT4,	  SDMMC3,   PWM1,	INVALID,    SDIO3,	INVALID,    RSVD,	INPUT,	0x33a8),
+	PINGROUP(SDMMC3_DAT5,	  SDMMC3,   PWM0,	INVALID,    SDIO3,	INVALID,    RSVD,	INPUT,	0x33ac),
+	PINGROUP(SDMMC3_DAT6,	  SDMMC3,   SPDIF,	INVALID,    SDIO3,	INVALID,    RSVD,	INPUT,	0x33b0),
+	PINGROUP(SDMMC3_DAT7,	  SDMMC3,   SPDIF,	INVALID,    SDIO3,	INVALID,    RSVD,	INPUT,	0x33b4),
+	PINGROUP(PEX_L0_PRSNT_N,  PEXCTL,   PCIE,	HDA,	    RSVD2,	RSVD3,	    RSVD,	INPUT,	0x33b8),
+	PINGROUP(PEX_L0_RST_N,	  PEXCTL,   PCIE,	HDA,	    RSVD2,	RSVD3,	    RSVD,	INPUT,	0x33bc),
+	PINGROUP(PEX_L0_CLKREQ_N, PEXCTL,   PCIE,	HDA,	    RSVD2,	RSVD3,	    RSVD,	INPUT,	0x33c0),
+	PINGROUP(PEX_WAKE_N,	  PEXCTL,   PCIE,	HDA,	    RSVD2,	RSVD3,	    RSVD,	INPUT,	0x33c4),
+	PINGROUP(PEX_L1_PRSNT_N,  PEXCTL,   PCIE,	HDA,	    RSVD2,	RSVD3,	    RSVD,	INPUT,	0x33c8),
+	PINGROUP(PEX_L1_RST_N,	  PEXCTL,   PCIE,	HDA,	    RSVD2,	RSVD3,	    RSVD,	INPUT,	0x33cc),
+	PINGROUP(PEX_L1_CLKREQ_N, PEXCTL,   PCIE,	HDA,	    RSVD2,	RSVD3,	    RSVD,	INPUT,	0x33d0),
+	PINGROUP(PEX_L2_PRSNT_N,  PEXCTL,   PCIE,	HDA,	    RSVD2,	RSVD3,	    RSVD,	INPUT,	0x33d4),
+	PINGROUP(PEX_L2_RST_N,	  PEXCTL,   PCIE,	HDA,	    RSVD2,	RSVD3,	    RSVD,	INPUT,	0x33d8),
+	PINGROUP(PEX_L2_CLKREQ_N, PEXCTL,   PCIE,	HDA,	    RSVD2,	RSVD3,	    RSVD,	INPUT,	0x33dc),
+	PINGROUP(HDMI_CEC,	  SYS,      CEC,	RSVD1,	    RSVD2,	RSVD3,	    RSVD,	INPUT,	0x33e0),
+};
+
+void __devinit tegra30_pinmux_init(const struct tegra_pingroup_desc **pg,
+		int *pg_max, const struct tegra_drive_pingroup_desc **pgdrive,
+		int *pgdrive_max)
+{
+	*pg = tegra_soc_pingroups;
+	*pg_max = TEGRA_MAX_PINGROUP;
+	*pgdrive = tegra_soc_drive_pingroups;
+	*pgdrive_max = TEGRA_MAX_DRIVE_PINGROUP;
+}
+
diff --git a/arch/arm/mach-tegra/pinmux.c b/arch/arm/mach-tegra/pinmux.c
index 1d201650d7a4..ac35d2b76850 100644
--- a/arch/arm/mach-tegra/pinmux.c
+++ b/arch/arm/mach-tegra/pinmux.c
@@ -21,6 +21,7 @@
 #include <linux/spinlock.h>
 #include <linux/io.h>
 #include <linux/platform_device.h>
+#include <linux/of_device.h>
 
 #include <mach/iomap.h>
 #include <mach/pinmux.h>
@@ -33,8 +34,10 @@
 #define SLWR(reg)	(((reg) >> 28) & 0x3)
 #define SLWF(reg)	(((reg) >> 30) & 0x3)
 
-static const struct tegra_pingroup_desc *const pingroups = tegra_soc_pingroups;
-static const struct tegra_drive_pingroup_desc *const drive_pingroups = tegra_soc_drive_pingroups;
+static const struct tegra_pingroup_desc *pingroups;
+static const struct tegra_drive_pingroup_desc *drive_pingroups;
+static int pingroup_max;
+static int drive_max;
 
 static char *tegra_mux_names[TEGRA_MAX_MUX] = {
 	[TEGRA_MUX_AHB_CLK] = "AHB_CLK",
@@ -97,6 +100,49 @@ static char *tegra_mux_names[TEGRA_MAX_MUX] = {
 	[TEGRA_MUX_VI] = "VI",
 	[TEGRA_MUX_VI_SENSOR_CLK] = "VI_SENSOR_CLK",
 	[TEGRA_MUX_XIO] = "XIO",
+	[TEGRA_MUX_BLINK] = "BLINK",
+	[TEGRA_MUX_CEC] = "CEC",
+	[TEGRA_MUX_CLK12] = "CLK12",
+	[TEGRA_MUX_DAP] = "DAP",
+	[TEGRA_MUX_DAPSDMMC2] = "DAPSDMMC2",
+	[TEGRA_MUX_DDR] = "DDR",
+	[TEGRA_MUX_DEV3] = "DEV3",
+	[TEGRA_MUX_DTV] = "DTV",
+	[TEGRA_MUX_VI_ALT1] = "VI_ALT1",
+	[TEGRA_MUX_VI_ALT2] = "VI_ALT2",
+	[TEGRA_MUX_VI_ALT3] = "VI_ALT3",
+	[TEGRA_MUX_EMC_DLL] = "EMC_DLL",
+	[TEGRA_MUX_EXTPERIPH1] = "EXTPERIPH1",
+	[TEGRA_MUX_EXTPERIPH2] = "EXTPERIPH2",
+	[TEGRA_MUX_EXTPERIPH3] = "EXTPERIPH3",
+	[TEGRA_MUX_GMI_ALT] = "GMI_ALT",
+	[TEGRA_MUX_HDA] = "HDA",
+	[TEGRA_MUX_HSI] = "HSI",
+	[TEGRA_MUX_I2C4] = "I2C4",
+	[TEGRA_MUX_I2C5] = "I2C5",
+	[TEGRA_MUX_I2CPWR] = "I2CPWR",
+	[TEGRA_MUX_I2S0] = "I2S0",
+	[TEGRA_MUX_I2S1] = "I2S1",
+	[TEGRA_MUX_I2S2] = "I2S2",
+	[TEGRA_MUX_I2S3] = "I2S3",
+	[TEGRA_MUX_I2S4] = "I2S4",
+	[TEGRA_MUX_NAND_ALT] = "NAND_ALT",
+	[TEGRA_MUX_POPSDIO4] = "POPSDIO4",
+	[TEGRA_MUX_POPSDMMC4] = "POPSDMMC4",
+	[TEGRA_MUX_PWM0] = "PWM0",
+	[TEGRA_MUX_PWM1] = "PWM2",
+	[TEGRA_MUX_PWM2] = "PWM2",
+	[TEGRA_MUX_PWM3] = "PWM3",
+	[TEGRA_MUX_SATA] = "SATA",
+	[TEGRA_MUX_SPI5] = "SPI5",
+	[TEGRA_MUX_SPI6] = "SPI6",
+	[TEGRA_MUX_SYSCLK] = "SYSCLK",
+	[TEGRA_MUX_VGP1] = "VGP1",
+	[TEGRA_MUX_VGP2] = "VGP2",
+	[TEGRA_MUX_VGP3] = "VGP3",
+	[TEGRA_MUX_VGP4] = "VGP4",
+	[TEGRA_MUX_VGP5] = "VGP5",
+	[TEGRA_MUX_VGP6] = "VGP6",
 	[TEGRA_MUX_SAFE] = "<safe>",
 };
 
@@ -116,9 +162,9 @@ static const char *tegra_slew_names[TEGRA_MAX_SLEW] = {
 
 static DEFINE_SPINLOCK(mux_lock);
 
-static const char *pingroup_name(enum tegra_pingroup pg)
+static const char *pingroup_name(int pg)
 {
-	if (pg < 0 || pg >=  TEGRA_MAX_PINGROUP)
+	if (pg < 0 || pg >=  pingroup_max)
 		return "<UNKNOWN>";
 
 	return pingroups[pg].name;
@@ -189,10 +235,10 @@ static int tegra_pinmux_set_func(const struct tegra_pingroup_config *config)
 	int i;
 	unsigned long reg;
 	unsigned long flags;
-	enum tegra_pingroup pg = config->pingroup;
+	int pg = config->pingroup;
 	enum tegra_mux_func func = config->func;
 
-	if (pg < 0 || pg >=  TEGRA_MAX_PINGROUP)
+	if (pg < 0 || pg >=  pingroup_max)
 		return -ERANGE;
 
 	if (pingroups[pg].mux_reg < 0)
@@ -230,13 +276,12 @@ static int tegra_pinmux_set_func(const struct tegra_pingroup_config *config)
 	return 0;
 }
 
-int tegra_pinmux_set_tristate(enum tegra_pingroup pg,
-	enum tegra_tristate tristate)
+int tegra_pinmux_set_tristate(int pg, enum tegra_tristate tristate)
 {
 	unsigned long reg;
 	unsigned long flags;
 
-	if (pg < 0 || pg >=  TEGRA_MAX_PINGROUP)
+	if (pg < 0 || pg >=  pingroup_max)
 		return -ERANGE;
 
 	if (pingroups[pg].tri_reg < 0)
@@ -255,13 +300,12 @@ int tegra_pinmux_set_tristate(enum tegra_pingroup pg,
 	return 0;
 }
 
-int tegra_pinmux_set_pullupdown(enum tegra_pingroup pg,
-	enum tegra_pullupdown pupd)
+int tegra_pinmux_set_pullupdown(int pg, enum tegra_pullupdown pupd)
 {
 	unsigned long reg;
 	unsigned long flags;
 
-	if (pg < 0 || pg >=  TEGRA_MAX_PINGROUP)
+	if (pg < 0 || pg >=  pingroup_max)
 		return -ERANGE;
 
 	if (pingroups[pg].pupd_reg < 0)
@@ -287,7 +331,7 @@ int tegra_pinmux_set_pullupdown(enum tegra_pingroup pg,
 
 static void tegra_pinmux_config_pingroup(const struct tegra_pingroup_config *config)
 {
-	enum tegra_pingroup pingroup = config->pingroup;
+	int pingroup = config->pingroup;
 	enum tegra_mux_func func     = config->func;
 	enum tegra_pullupdown pupd   = config->pupd;
 	enum tegra_tristate tristate = config->tristate;
@@ -323,9 +367,9 @@ void tegra_pinmux_config_table(const struct tegra_pingroup_config *config, int l
 		tegra_pinmux_config_pingroup(&config[i]);
 }
 
-static const char *drive_pinmux_name(enum tegra_drive_pingroup pg)
+static const char *drive_pinmux_name(int pg)
 {
-	if (pg < 0 || pg >=  TEGRA_MAX_DRIVE_PINGROUP)
+	if (pg < 0 || pg >=  drive_max)
 		return "<UNKNOWN>";
 
 	return drive_pingroups[pg].name;
@@ -352,12 +396,11 @@ static const char *slew_name(unsigned long val)
 	return tegra_slew_names[val];
 }
 
-static int tegra_drive_pinmux_set_hsm(enum tegra_drive_pingroup pg,
-	enum tegra_hsm hsm)
+static int tegra_drive_pinmux_set_hsm(int pg, enum tegra_hsm hsm)
 {
 	unsigned long flags;
 	u32 reg;
-	if (pg < 0 || pg >=  TEGRA_MAX_DRIVE_PINGROUP)
+	if (pg < 0 || pg >=  drive_max)
 		return -ERANGE;
 
 	if (hsm != TEGRA_HSM_ENABLE && hsm != TEGRA_HSM_DISABLE)
@@ -377,12 +420,11 @@ static int tegra_drive_pinmux_set_hsm(enum tegra_drive_pingroup pg,
 	return 0;
 }
 
-static int tegra_drive_pinmux_set_schmitt(enum tegra_drive_pingroup pg,
-	enum tegra_schmitt schmitt)
+static int tegra_drive_pinmux_set_schmitt(int pg, enum tegra_schmitt schmitt)
 {
 	unsigned long flags;
 	u32 reg;
-	if (pg < 0 || pg >=  TEGRA_MAX_DRIVE_PINGROUP)
+	if (pg < 0 || pg >=  drive_max)
 		return -ERANGE;
 
 	if (schmitt != TEGRA_SCHMITT_ENABLE && schmitt != TEGRA_SCHMITT_DISABLE)
@@ -402,12 +444,11 @@ static int tegra_drive_pinmux_set_schmitt(enum tegra_drive_pingroup pg,
 	return 0;
 }
 
-static int tegra_drive_pinmux_set_drive(enum tegra_drive_pingroup pg,
-	enum tegra_drive drive)
+static int tegra_drive_pinmux_set_drive(int pg, enum tegra_drive drive)
 {
 	unsigned long flags;
 	u32 reg;
-	if (pg < 0 || pg >=  TEGRA_MAX_DRIVE_PINGROUP)
+	if (pg < 0 || pg >=  drive_max)
 		return -ERANGE;
 
 	if (drive < 0 || drive >= TEGRA_MAX_DRIVE)
@@ -425,12 +466,12 @@ static int tegra_drive_pinmux_set_drive(enum tegra_drive_pingroup pg,
 	return 0;
 }
 
-static int tegra_drive_pinmux_set_pull_down(enum tegra_drive_pingroup pg,
+static int tegra_drive_pinmux_set_pull_down(int pg,
 	enum tegra_pull_strength pull_down)
 {
 	unsigned long flags;
 	u32 reg;
-	if (pg < 0 || pg >=  TEGRA_MAX_DRIVE_PINGROUP)
+	if (pg < 0 || pg >=  drive_max)
 		return -ERANGE;
 
 	if (pull_down < 0 || pull_down >= TEGRA_MAX_PULL)
@@ -448,12 +489,12 @@ static int tegra_drive_pinmux_set_pull_down(enum tegra_drive_pingroup pg,
 	return 0;
 }
 
-static int tegra_drive_pinmux_set_pull_up(enum tegra_drive_pingroup pg,
+static int tegra_drive_pinmux_set_pull_up(int pg,
 	enum tegra_pull_strength pull_up)
 {
 	unsigned long flags;
 	u32 reg;
-	if (pg < 0 || pg >=  TEGRA_MAX_DRIVE_PINGROUP)
+	if (pg < 0 || pg >=  drive_max)
 		return -ERANGE;
 
 	if (pull_up < 0 || pull_up >= TEGRA_MAX_PULL)
@@ -471,12 +512,12 @@ static int tegra_drive_pinmux_set_pull_up(enum tegra_drive_pingroup pg,
 	return 0;
 }
 
-static int tegra_drive_pinmux_set_slew_rising(enum tegra_drive_pingroup pg,
+static int tegra_drive_pinmux_set_slew_rising(int pg,
 	enum tegra_slew slew_rising)
 {
 	unsigned long flags;
 	u32 reg;
-	if (pg < 0 || pg >=  TEGRA_MAX_DRIVE_PINGROUP)
+	if (pg < 0 || pg >=  drive_max)
 		return -ERANGE;
 
 	if (slew_rising < 0 || slew_rising >= TEGRA_MAX_SLEW)
@@ -494,12 +535,12 @@ static int tegra_drive_pinmux_set_slew_rising(enum tegra_drive_pingroup pg,
 	return 0;
 }
 
-static int tegra_drive_pinmux_set_slew_falling(enum tegra_drive_pingroup pg,
+static int tegra_drive_pinmux_set_slew_falling(int pg,
 	enum tegra_slew slew_falling)
 {
 	unsigned long flags;
 	u32 reg;
-	if (pg < 0 || pg >=  TEGRA_MAX_DRIVE_PINGROUP)
+	if (pg < 0 || pg >=  drive_max)
 		return -ERANGE;
 
 	if (slew_falling < 0 || slew_falling >= TEGRA_MAX_SLEW)
@@ -517,7 +558,7 @@ static int tegra_drive_pinmux_set_slew_falling(enum tegra_drive_pingroup pg,
 	return 0;
 }
 
-static void tegra_drive_pinmux_config_pingroup(enum tegra_drive_pingroup pingroup,
+static void tegra_drive_pinmux_config_pingroup(int pingroup,
 					  enum tegra_hsm hsm,
 					  enum tegra_schmitt schmitt,
 					  enum tegra_drive drive,
@@ -596,7 +637,7 @@ void tegra_pinmux_set_safe_pinmux_table(const struct tegra_pingroup_config *conf
 	for (i = 0; i < len; i++) {
 		int err;
 		c = config[i];
-		if (c.pingroup < 0 || c.pingroup >= TEGRA_MAX_PINGROUP) {
+		if (c.pingroup < 0 || c.pingroup >= pingroup_max) {
 			WARN_ON(1);
 			continue;
 		}
@@ -617,7 +658,7 @@ void tegra_pinmux_config_pinmux_table(const struct tegra_pingroup_config *config
 	for (i = 0; i < len; i++) {
 		int err;
 		if (config[i].pingroup < 0 ||
-		    config[i].pingroup >= TEGRA_MAX_PINGROUP) {
+		    config[i].pingroup >= pingroup_max) {
 			WARN_ON(1);
 			continue;
 		}
@@ -635,7 +676,7 @@ void tegra_pinmux_config_tristate_table(const struct tegra_pingroup_config *conf
 {
 	int i;
 	int err;
-	enum tegra_pingroup pingroup;
+	int pingroup;
 
 	for (i = 0; i < len; i++) {
 		pingroup = config[i].pingroup;
@@ -654,7 +695,7 @@ void tegra_pinmux_config_pullupdown_table(const struct tegra_pingroup_config *co
 {
 	int i;
 	int err;
-	enum tegra_pingroup pingroup;
+	int pingroup;
 
 	for (i = 0; i < len; i++) {
 		pingroup = config[i].pingroup;
@@ -668,11 +709,36 @@ void tegra_pinmux_config_pullupdown_table(const struct tegra_pingroup_config *co
 	}
 }
 
+static struct of_device_id tegra_pinmux_of_match[] __devinitdata = {
+#ifdef CONFIG_ARCH_TEGRA_2x_SOC
+	{ .compatible = "nvidia,tegra20-pinmux", tegra20_pinmux_init },
+#endif
+#ifdef CONFIG_ARCH_TEGRA_3x_SOC
+	{ .compatible = "nvidia,tegra30-pinmux", tegra30_pinmux_init },
+#endif
+	{ },
+};
+
 static int __devinit tegra_pinmux_probe(struct platform_device *pdev)
 {
 	struct resource *res;
 	int i;
 	int config_bad = 0;
+	const struct of_device_id *match;
+
+	match = of_match_device(tegra_pinmux_of_match, &pdev->dev);
+
+	if (match)
+		((pinmux_init)(match->data))(&pingroups, &pingroup_max,
+			&drive_pingroups, &drive_max);
+#ifdef CONFIG_ARCH_TEGRA_2x_SOC
+	else
+		/* no device tree available, so we must be on tegra20 */
+		tegra20_pinmux_init(&pingroups, &pingroup_max,
+					&drive_pingroups, &drive_max);
+#else
+	pr_warn("non Tegra20 platform requires pinmux devicetree node\n");
+#endif
 
 	for (i = 0; ; i++) {
 		res = platform_get_resource(pdev, IORESOURCE_MEM, i);
@@ -681,7 +747,7 @@ static int __devinit tegra_pinmux_probe(struct platform_device *pdev)
 	}
 	nbanks = i;
 
-	for (i = 0; i < TEGRA_MAX_PINGROUP; i++) {
+	for (i = 0; i < pingroup_max; i++) {
 		if (pingroups[i].tri_bank >= nbanks) {
 			dev_err(&pdev->dev, "pingroup %d: bad tri_bank\n", i);
 			config_bad = 1;
@@ -698,7 +764,7 @@ static int __devinit tegra_pinmux_probe(struct platform_device *pdev)
 		}
 	}
 
-	for (i = 0; i < TEGRA_MAX_DRIVE_PINGROUP; i++) {
+	for (i = 0; i < drive_max; i++) {
 		if (drive_pingroups[i].reg_bank >= nbanks) {
 			dev_err(&pdev->dev,
 				"drive pingroup %d: bad reg_bank\n", i);
@@ -741,11 +807,6 @@ static int __devinit tegra_pinmux_probe(struct platform_device *pdev)
 	return 0;
 }
 
-static struct of_device_id tegra_pinmux_of_match[] __devinitdata = {
-	{ .compatible = "nvidia,tegra20-pinmux", },
-	{ },
-};
-
 static struct platform_driver tegra_pinmux_driver = {
 	.driver		= {
 		.name	= "tegra-pinmux",
@@ -779,7 +840,7 @@ static int dbg_pinmux_show(struct seq_file *s, void *unused)
 	int i;
 	int len;
 
-	for (i = 0; i < TEGRA_MAX_PINGROUP; i++) {
+	for (i = 0; i < pingroup_max; i++) {
 		unsigned long reg;
 		unsigned long tri;
 		unsigned long mux;
@@ -850,7 +911,7 @@ static int dbg_drive_pinmux_show(struct seq_file *s, void *unused)
 	int i;
 	int len;
 
-	for (i = 0; i < TEGRA_MAX_DRIVE_PINGROUP; i++) {
+	for (i = 0; i < drive_max; i++) {
 		u32 reg;
 
 		seq_printf(s, "\t{TEGRA_DRIVE_PINGROUP_%s",
diff --git a/arch/arm/mach-tegra/tegra2_clocks.c b/arch/arm/mach-tegra/tegra2_clocks.c
index 371869d8ea01..ff9e6b6c0460 100644
--- a/arch/arm/mach-tegra/tegra2_clocks.c
+++ b/arch/arm/mach-tegra/tegra2_clocks.c
@@ -174,7 +174,7 @@ static int tegra_periph_clk_enable_refcount[3 * 32];
 #define pmc_readl(reg) \
 	__raw_readl(reg_pmc_base + (reg))
 
-unsigned long clk_measure_input_freq(void)
+static unsigned long clk_measure_input_freq(void)
 {
 	u32 clock_autodetect;
 	clk_writel(OSC_FREQ_DET_TRIG | 1, OSC_FREQ_DET);
@@ -278,18 +278,6 @@ static struct clk_ops tegra_clk_m_ops = {
 	.disable	= tegra2_clk_m_disable,
 };
 
-void tegra2_periph_reset_assert(struct clk *c)
-{
-	BUG_ON(!c->ops->reset);
-	c->ops->reset(c, true);
-}
-
-void tegra2_periph_reset_deassert(struct clk *c)
-{
-	BUG_ON(!c->ops->reset);
-	c->ops->reset(c, false);
-}
-
 /* super clock functions */
 /* "super clocks" on tegra have two-stage muxes and a clock skipping
  * super divider.  We will ignore the clock skipping divider, since we
@@ -1132,6 +1120,9 @@ static struct clk_ops tegra_periph_clk_ops = {
 void tegra2_sdmmc_tap_delay(struct clk *c, int delay)
 {
 	u32 reg;
+	unsigned long flags;
+
+	spin_lock_irqsave(&c->spinlock, flags);
 
 	delay = clamp(delay, 0, 15);
 	reg = clk_readl(c->reg);
@@ -1139,6 +1130,8 @@ void tegra2_sdmmc_tap_delay(struct clk *c, int delay)
 	reg |= SDMMC_CLK_INT_FB_SEL;
 	reg |= delay << SDMMC_CLK_INT_FB_DLY_SHIFT;
 	clk_writel(reg, c->reg);
+
+	spin_unlock_irqrestore(&c->spinlock, flags);
 }
 
 /* External memory controller clock ops */
diff --git a/arch/arm/mach-tegra/timer.c b/arch/arm/mach-tegra/timer.c
index 732c724008b1..1d1acda4f3e0 100644
--- a/arch/arm/mach-tegra/timer.c
+++ b/arch/arm/mach-tegra/timer.c
@@ -165,20 +165,28 @@ static struct irqaction tegra_timer_irq = {
 static void __init tegra_init_timer(void)
 {
 	struct clk *clk;
-	unsigned long rate = clk_measure_input_freq();
+	unsigned long rate;
 	int ret;
 
 	clk = clk_get_sys("timer", NULL);
-	BUG_ON(IS_ERR(clk));
-	clk_enable(clk);
+	if (IS_ERR(clk)) {
+		pr_warn("Unable to get timer clock."
+			" Assuming 12Mhz input clock.\n");
+		rate = 12000000;
+	} else {
+		clk_enable(clk);
+		rate = clk_get_rate(clk);
+	}
 
 	/*
 	 * rtc registers are used by read_persistent_clock, keep the rtc clock
 	 * enabled
 	 */
 	clk = clk_get_sys("rtc-tegra", NULL);
-	BUG_ON(IS_ERR(clk));
-	clk_enable(clk);
+	if (IS_ERR(clk))
+		pr_warn("Unable to get rtc-tegra clock\n");
+	else
+		clk_enable(clk);
 
 #ifdef CONFIG_HAVE_ARM_TWD
 	twd_base = IO_ADDRESS(TEGRA_ARM_PERIF_BASE + 0x600);
diff --git a/arch/arm/mach-u300/Kconfig b/arch/arm/mach-u300/Kconfig
index 1cbcd4fc1e17..54d8f34fdee5 100644
--- a/arch/arm/mach-u300/Kconfig
+++ b/arch/arm/mach-u300/Kconfig
@@ -7,8 +7,8 @@ comment "ST-Ericsson Mobile Platform Products"
 config MACH_U300
 	bool "U300"
 	select PINCTRL
-	select PINMUX_U300
-	select GPIO_U300
+	select PINCTRL_U300
+	select PINCTRL_COH901
 
 comment "ST-Ericsson U300/U330/U335/U365 Feature Selections"
 
diff --git a/arch/arm/mach-u300/core.c b/arch/arm/mach-u300/core.c
index 697930761b3e..b4c6926a700c 100644
--- a/arch/arm/mach-u300/core.c
+++ b/arch/arm/mach-u300/core.c
@@ -1605,15 +1605,15 @@ static struct platform_device pinmux_device = {
 };
 
 /* Pinmux settings */
-static struct pinmux_map u300_pinmux_map[] = {
+static struct pinmux_map __initdata u300_pinmux_map[] = {
 	/* anonymous maps for chip power and EMIFs */
-	PINMUX_MAP_PRIMARY_SYS_HOG("POWER", "power"),
-	PINMUX_MAP_PRIMARY_SYS_HOG("EMIF0", "emif0"),
-	PINMUX_MAP_PRIMARY_SYS_HOG("EMIF1", "emif1"),
+	PINMUX_MAP_SYS_HOG("POWER", "pinmux-u300", "power"),
+	PINMUX_MAP_SYS_HOG("EMIF0", "pinmux-u300", "emif0"),
+	PINMUX_MAP_SYS_HOG("EMIF1", "pinmux-u300", "emif1"),
 	/* per-device maps for MMC/SD, SPI and UART */
-	PINMUX_MAP_PRIMARY("MMCSD", "mmc0", "mmci"),
-	PINMUX_MAP_PRIMARY("SPI", "spi0", "pl022"),
-	PINMUX_MAP_PRIMARY("UART0", "uart0", "uart0"),
+	PINMUX_MAP("MMCSD", "pinmux-u300", "mmc0", "mmci"),
+	PINMUX_MAP("SPI", "pinmux-u300", "spi0", "pl022"),
+	PINMUX_MAP("UART0", "pinmux-u300", "uart0", "uart0"),
 };
 
 struct u300_mux_hog {
diff --git a/arch/arm/mach-u300/include/mach/gpio-u300.h b/arch/arm/mach-u300/include/mach/gpio-u300.h
index 0c2b2021951a..bf4c7935aecd 100644
--- a/arch/arm/mach-u300/include/mach/gpio-u300.h
+++ b/arch/arm/mach-u300/include/mach/gpio-u300.h
@@ -9,121 +9,6 @@
 #ifndef __MACH_U300_GPIO_U300_H
 #define __MACH_U300_GPIO_U300_H
 
-/*
- * Individual pin assignments for the B26/S26. Notice that the
- * actual usage of these pins depends on the PAD MUX settings, that
- * is why the same number can potentially appear several times.
- * In the reference design each pin is only used for one purpose.
- * These were determined by inspecting the B26/S26 schematic:
- * 2/1911-ROA 128 1603
- */
-#ifdef CONFIG_MACH_U300_BS2X
-#define U300_GPIO_PIN_UART_RX		0
-#define U300_GPIO_PIN_UART_TX		1
-#define U300_GPIO_PIN_GPIO02		2  /* Unrouted */
-#define U300_GPIO_PIN_GPIO03		3  /* Unrouted */
-#define U300_GPIO_PIN_CAM_SLEEP		4
-#define U300_GPIO_PIN_CAM_REG_EN	5
-#define U300_GPIO_PIN_GPIO06		6  /* Unrouted */
-#define U300_GPIO_PIN_GPIO07		7  /* Unrouted */
-
-#define U300_GPIO_PIN_GPIO08		8  /* Service point SP2321 */
-#define U300_GPIO_PIN_GPIO09		9  /* Service point SP2322 */
-#define U300_GPIO_PIN_PHFSENSE		10 /* Headphone jack sensing */
-#define U300_GPIO_PIN_MMC_CLKRET	11 /* Clock return from MMC/SD card */
-#define U300_GPIO_PIN_MMC_CD		12 /* MMC Card insertion detection */
-#define U300_GPIO_PIN_FLIPSENSE		13 /* Mechanical flip sensing */
-#define U300_GPIO_PIN_GPIO14		14 /* DSP JTAG Port RTCK */
-#define U300_GPIO_PIN_GPIO15		15 /* Unrouted */
-
-#define U300_GPIO_PIN_GPIO16		16 /* Unrouted */
-#define U300_GPIO_PIN_GPIO17		17 /* Unrouted */
-#define U300_GPIO_PIN_GPIO18		18 /* Unrouted */
-#define U300_GPIO_PIN_GPIO19		19 /* Unrouted */
-#define U300_GPIO_PIN_GPIO20		20 /* Unrouted */
-#define U300_GPIO_PIN_GPIO21		21 /* Unrouted */
-#define U300_GPIO_PIN_GPIO22		22 /* Unrouted */
-#define U300_GPIO_PIN_GPIO23		23 /* Unrouted */
-#endif
-
-/*
- * Individual pin assignments for the B330/S330 and B365/S365.
- * Notice that the actual usage of these pins depends on the
- * PAD MUX settings, that is why the same number can potentially
- * appear several times. In the reference design each pin is only
- * used for one purpose. These were determined by inspecting the
- * S365 schematic.
- */
-#if defined(CONFIG_MACH_U300_BS330) || defined(CONFIG_MACH_U300_BS365) || \
-    defined(CONFIG_MACH_U300_BS335)
-#define U300_GPIO_PIN_UART_RX		0
-#define U300_GPIO_PIN_UART_TX		1
-#define U300_GPIO_PIN_UART_CTS		2
-#define U300_GPIO_PIN_UART_RTS		3
-#define U300_GPIO_PIN_CAM_MAIN_STANDBY	4 /* Camera MAIN standby */
-#define U300_GPIO_PIN_GPIO05		5 /* Unrouted */
-#define U300_GPIO_PIN_MS_CD		6 /* Memory Stick Card insertion */
-#define U300_GPIO_PIN_GPIO07		7 /* Test point TP2430 */
-
-#define U300_GPIO_PIN_GPIO08		8 /* Test point TP2437 */
-#define U300_GPIO_PIN_GPIO09		9 /* Test point TP2431 */
-#define U300_GPIO_PIN_GPIO10		10 /* Test point TP2432 */
-#define U300_GPIO_PIN_MMC_CLKRET	11 /* Clock return from MMC/SD card */
-#define U300_GPIO_PIN_MMC_CD		12 /* MMC Card insertion detection */
-#define U300_GPIO_PIN_CAM_SUB_STANDBY	13 /* Camera SUB standby */
-#define U300_GPIO_PIN_GPIO14		14 /* Test point TP2436 */
-#define U300_GPIO_PIN_GPIO15		15 /* Unrouted */
-
-#define U300_GPIO_PIN_GPIO16		16 /* Test point TP2438 */
-#define U300_GPIO_PIN_PHFSENSE		17 /* Headphone jack sensing */
-#define U300_GPIO_PIN_GPIO18		18 /* Test point TP2439 */
-#define U300_GPIO_PIN_GPIO19		19 /* Routed somewhere */
-#define U300_GPIO_PIN_GPIO20		20 /* Unrouted */
-#define U300_GPIO_PIN_GPIO21		21 /* Unrouted */
-#define U300_GPIO_PIN_GPIO22		22 /* Unrouted */
-#define U300_GPIO_PIN_GPIO23		23 /* Unrouted */
-
-#define U300_GPIO_PIN_GPIO24		24 /* Unrouted */
-#define U300_GPIO_PIN_GPIO25		25 /* Unrouted */
-#define U300_GPIO_PIN_GPIO26		26 /* Unrouted */
-#define U300_GPIO_PIN_GPIO27		27 /* Unrouted */
-#define U300_GPIO_PIN_GPIO28		28 /* Unrouted */
-#define U300_GPIO_PIN_GPIO29		29 /* Unrouted */
-#define U300_GPIO_PIN_GPIO30		30 /* Unrouted */
-#define U300_GPIO_PIN_GPIO31		31 /* Unrouted */
-
-#define U300_GPIO_PIN_GPIO32		32 /* Unrouted */
-#define U300_GPIO_PIN_GPIO33		33 /* Unrouted */
-#define U300_GPIO_PIN_GPIO34		34 /* Unrouted */
-#define U300_GPIO_PIN_GPIO35		35 /* Unrouted */
-#define U300_GPIO_PIN_GPIO36		36 /* Unrouted */
-#define U300_GPIO_PIN_GPIO37		37 /* Unrouted */
-#define U300_GPIO_PIN_GPIO38		38 /* Unrouted */
-#define U300_GPIO_PIN_GPIO39		39 /* Unrouted */
-
-#ifdef CONFIG_MACH_U300_BS335
-
-#define U300_GPIO_PIN_GPIO40		40 /* Unrouted */
-#define U300_GPIO_PIN_GPIO41		41 /* Unrouted */
-#define U300_GPIO_PIN_GPIO42		42 /* Unrouted */
-#define U300_GPIO_PIN_GPIO43		43 /* Unrouted */
-#define U300_GPIO_PIN_GPIO44		44 /* Unrouted */
-#define U300_GPIO_PIN_GPIO45		45 /* Unrouted */
-#define U300_GPIO_PIN_GPIO46		46 /* Unrouted */
-#define U300_GPIO_PIN_GPIO47		47 /* Unrouted */
-
-#define U300_GPIO_PIN_GPIO48		48 /* Unrouted */
-#define U300_GPIO_PIN_GPIO49		49 /* Unrouted */
-#define U300_GPIO_PIN_GPIO50		50 /* Unrouted */
-#define U300_GPIO_PIN_GPIO51		51 /* Unrouted */
-#define U300_GPIO_PIN_GPIO52		52 /* Unrouted */
-#define U300_GPIO_PIN_GPIO53		53 /* Unrouted */
-#define U300_GPIO_PIN_GPIO54		54 /* Unrouted */
-#define U300_GPIO_PIN_GPIO55		55 /* Unrouted */
-#endif
-
-#endif
-
 /**
  * enum u300_gpio_variant - the type of U300 GPIO employed
  */
diff --git a/arch/arm/mach-u300/include/mach/irqs.h b/arch/arm/mach-u300/include/mach/irqs.h
index db3fbfa1d6e9..ee78a26707eb 100644
--- a/arch/arm/mach-u300/include/mach/irqs.h
+++ b/arch/arm/mach-u300/include/mach/irqs.h
@@ -110,7 +110,7 @@
 #endif
 
 /* Maximum 8*7 GPIO lines */
-#ifdef CONFIG_GPIO_U300
+#ifdef CONFIG_PINCTRL_COH901
 #define IRQ_U300_GPIO_BASE		(U300_VIC_IRQS_END)
 #define IRQ_U300_GPIO_END		(IRQ_U300_GPIO_BASE + 56)
 #else
diff --git a/arch/arm/mach-u300/include/mach/memory.h b/arch/arm/mach-u300/include/mach/memory.h
deleted file mode 100644
index c808f347a081..000000000000
--- a/arch/arm/mach-u300/include/mach/memory.h
+++ /dev/null
@@ -1,19 +0,0 @@
-/*
- *
- * arch/arm/mach-u300/include/mach/memory.h
- *
- *
- * Copyright (C) 2007-2009 ST-Ericsson AB
- * License terms: GNU General Public License (GPL) version 2
- * Memory virtual/physical mapping constants.
- * Author: Linus Walleij <linus.walleij@stericsson.com>
- * Author: Jonas Aaberg <jonas.aberg@stericsson.com>
- */
-
-#ifndef __MACH_MEMORY_H
-#define __MACH_MEMORY_H
-
-#define PLAT_PHYS_OFFSET	UL(0x48000000)
-#define BOOT_PARAMS_OFFSET	0x100
-
-#endif
diff --git a/arch/arm/mach-u300/mmc.c b/arch/arm/mach-u300/mmc.c
index 4d482aacc272..05abd6ad9fab 100644
--- a/arch/arm/mach-u300/mmc.c
+++ b/arch/arm/mach-u300/mmc.c
@@ -18,8 +18,8 @@
 #include <linux/slab.h>
 #include <mach/coh901318.h>
 #include <mach/dma_channels.h>
-#include <mach/gpio-u300.h>
 
+#include "u300-gpio.h"
 #include "mmc.h"
 
 static struct mmci_platform_data mmc0_plat_data = {
diff --git a/arch/arm/mach-u300/u300-gpio.h b/arch/arm/mach-u300/u300-gpio.h
new file mode 100644
index 000000000000..847dc25300c6
--- /dev/null
+++ b/arch/arm/mach-u300/u300-gpio.h
@@ -0,0 +1,114 @@
+/*
+ * Individual pin assignments for the B26/S26. Notice that the
+ * actual usage of these pins depends on the PAD MUX settings, that
+ * is why the same number can potentially appear several times.
+ * In the reference design each pin is only used for one purpose.
+ * These were determined by inspecting the B26/S26 schematic:
+ * 2/1911-ROA 128 1603
+ */
+#ifdef CONFIG_MACH_U300_BS2X
+#define U300_GPIO_PIN_UART_RX		0
+#define U300_GPIO_PIN_UART_TX		1
+#define U300_GPIO_PIN_GPIO02		2  /* Unrouted */
+#define U300_GPIO_PIN_GPIO03		3  /* Unrouted */
+#define U300_GPIO_PIN_CAM_SLEEP		4
+#define U300_GPIO_PIN_CAM_REG_EN	5
+#define U300_GPIO_PIN_GPIO06		6  /* Unrouted */
+#define U300_GPIO_PIN_GPIO07		7  /* Unrouted */
+
+#define U300_GPIO_PIN_GPIO08		8  /* Service point SP2321 */
+#define U300_GPIO_PIN_GPIO09		9  /* Service point SP2322 */
+#define U300_GPIO_PIN_PHFSENSE		10 /* Headphone jack sensing */
+#define U300_GPIO_PIN_MMC_CLKRET	11 /* Clock return from MMC/SD card */
+#define U300_GPIO_PIN_MMC_CD		12 /* MMC Card insertion detection */
+#define U300_GPIO_PIN_FLIPSENSE		13 /* Mechanical flip sensing */
+#define U300_GPIO_PIN_GPIO14		14 /* DSP JTAG Port RTCK */
+#define U300_GPIO_PIN_GPIO15		15 /* Unrouted */
+
+#define U300_GPIO_PIN_GPIO16		16 /* Unrouted */
+#define U300_GPIO_PIN_GPIO17		17 /* Unrouted */
+#define U300_GPIO_PIN_GPIO18		18 /* Unrouted */
+#define U300_GPIO_PIN_GPIO19		19 /* Unrouted */
+#define U300_GPIO_PIN_GPIO20		20 /* Unrouted */
+#define U300_GPIO_PIN_GPIO21		21 /* Unrouted */
+#define U300_GPIO_PIN_GPIO22		22 /* Unrouted */
+#define U300_GPIO_PIN_GPIO23		23 /* Unrouted */
+#endif
+
+/*
+ * Individual pin assignments for the B330/S330 and B365/S365.
+ * Notice that the actual usage of these pins depends on the
+ * PAD MUX settings, that is why the same number can potentially
+ * appear several times. In the reference design each pin is only
+ * used for one purpose. These were determined by inspecting the
+ * S365 schematic.
+ */
+#if defined(CONFIG_MACH_U300_BS330) || defined(CONFIG_MACH_U300_BS365) || \
+    defined(CONFIG_MACH_U300_BS335)
+#define U300_GPIO_PIN_UART_RX		0
+#define U300_GPIO_PIN_UART_TX		1
+#define U300_GPIO_PIN_UART_CTS		2
+#define U300_GPIO_PIN_UART_RTS		3
+#define U300_GPIO_PIN_CAM_MAIN_STANDBY	4 /* Camera MAIN standby */
+#define U300_GPIO_PIN_GPIO05		5 /* Unrouted */
+#define U300_GPIO_PIN_MS_CD		6 /* Memory Stick Card insertion */
+#define U300_GPIO_PIN_GPIO07		7 /* Test point TP2430 */
+
+#define U300_GPIO_PIN_GPIO08		8 /* Test point TP2437 */
+#define U300_GPIO_PIN_GPIO09		9 /* Test point TP2431 */
+#define U300_GPIO_PIN_GPIO10		10 /* Test point TP2432 */
+#define U300_GPIO_PIN_MMC_CLKRET	11 /* Clock return from MMC/SD card */
+#define U300_GPIO_PIN_MMC_CD		12 /* MMC Card insertion detection */
+#define U300_GPIO_PIN_CAM_SUB_STANDBY	13 /* Camera SUB standby */
+#define U300_GPIO_PIN_GPIO14		14 /* Test point TP2436 */
+#define U300_GPIO_PIN_GPIO15		15 /* Unrouted */
+
+#define U300_GPIO_PIN_GPIO16		16 /* Test point TP2438 */
+#define U300_GPIO_PIN_PHFSENSE		17 /* Headphone jack sensing */
+#define U300_GPIO_PIN_GPIO18		18 /* Test point TP2439 */
+#define U300_GPIO_PIN_GPIO19		19 /* Routed somewhere */
+#define U300_GPIO_PIN_GPIO20		20 /* Unrouted */
+#define U300_GPIO_PIN_GPIO21		21 /* Unrouted */
+#define U300_GPIO_PIN_GPIO22		22 /* Unrouted */
+#define U300_GPIO_PIN_GPIO23		23 /* Unrouted */
+
+#define U300_GPIO_PIN_GPIO24		24 /* Unrouted */
+#define U300_GPIO_PIN_GPIO25		25 /* Unrouted */
+#define U300_GPIO_PIN_GPIO26		26 /* Unrouted */
+#define U300_GPIO_PIN_GPIO27		27 /* Unrouted */
+#define U300_GPIO_PIN_GPIO28		28 /* Unrouted */
+#define U300_GPIO_PIN_GPIO29		29 /* Unrouted */
+#define U300_GPIO_PIN_GPIO30		30 /* Unrouted */
+#define U300_GPIO_PIN_GPIO31		31 /* Unrouted */
+
+#define U300_GPIO_PIN_GPIO32		32 /* Unrouted */
+#define U300_GPIO_PIN_GPIO33		33 /* Unrouted */
+#define U300_GPIO_PIN_GPIO34		34 /* Unrouted */
+#define U300_GPIO_PIN_GPIO35		35 /* Unrouted */
+#define U300_GPIO_PIN_GPIO36		36 /* Unrouted */
+#define U300_GPIO_PIN_GPIO37		37 /* Unrouted */
+#define U300_GPIO_PIN_GPIO38		38 /* Unrouted */
+#define U300_GPIO_PIN_GPIO39		39 /* Unrouted */
+
+#ifdef CONFIG_MACH_U300_BS335
+
+#define U300_GPIO_PIN_GPIO40		40 /* Unrouted */
+#define U300_GPIO_PIN_GPIO41		41 /* Unrouted */
+#define U300_GPIO_PIN_GPIO42		42 /* Unrouted */
+#define U300_GPIO_PIN_GPIO43		43 /* Unrouted */
+#define U300_GPIO_PIN_GPIO44		44 /* Unrouted */
+#define U300_GPIO_PIN_GPIO45		45 /* Unrouted */
+#define U300_GPIO_PIN_GPIO46		46 /* Unrouted */
+#define U300_GPIO_PIN_GPIO47		47 /* Unrouted */
+
+#define U300_GPIO_PIN_GPIO48		48 /* Unrouted */
+#define U300_GPIO_PIN_GPIO49		49 /* Unrouted */
+#define U300_GPIO_PIN_GPIO50		50 /* Unrouted */
+#define U300_GPIO_PIN_GPIO51		51 /* Unrouted */
+#define U300_GPIO_PIN_GPIO52		52 /* Unrouted */
+#define U300_GPIO_PIN_GPIO53		53 /* Unrouted */
+#define U300_GPIO_PIN_GPIO54		54 /* Unrouted */
+#define U300_GPIO_PIN_GPIO55		55 /* Unrouted */
+#endif
+
+#endif
diff --git a/arch/arm/mach-u300/u300.c b/arch/arm/mach-u300/u300.c
index def45bda2932..f30c69d91d99 100644
--- a/arch/arm/mach-u300/u300.c
+++ b/arch/arm/mach-u300/u300.c
@@ -47,7 +47,7 @@ static void __init u300_init_machine(void)
 
 MACHINE_START(U300, MACH_U300_STRING)
 	/* Maintainer: Linus Walleij <linus.walleij@stericsson.com> */
-	.atag_offset	= BOOT_PARAMS_OFFSET,
+	.atag_offset	= 0x100,
 	.map_io		= u300_map_io,
 	.init_irq	= u300_init_irq,
 	.handle_irq	= vic_handle_irq,
diff --git a/arch/arm/mach-ux500/board-mop500-sdi.c b/arch/arm/mach-ux500/board-mop500-sdi.c
index 6826faeecc68..23be34b3bb6e 100644
--- a/arch/arm/mach-ux500/board-mop500-sdi.c
+++ b/arch/arm/mach-ux500/board-mop500-sdi.c
@@ -22,6 +22,12 @@
 #include "ste-dma40-db8500.h"
 
 /*
+ * v2 has a new version of this block that need to be forced, the number found
+ * in hardware is incorrect
+ */
+#define U8500_SDI_V2_PERIPHID 0x10480180
+
+/*
  * SDI 0 (MicroSD slot)
  */
 
@@ -117,10 +123,7 @@ static void sdi0_configure(void)
 	gpio_direction_output(sdi0_en, 1);
 
 	/* Add the device, force v2 to subrevision 1 */
-	if (cpu_is_u8500v2())
-		db8500_add_sdi0(&mop500_sdi0_data, 0x10480180);
-	else
-		db8500_add_sdi0(&mop500_sdi0_data, 0);
+	db8500_add_sdi0(&mop500_sdi0_data, U8500_SDI_V2_PERIPHID);
 }
 
 void mop500_sdi_tc35892_init(void)
@@ -132,6 +135,42 @@ void mop500_sdi_tc35892_init(void)
 }
 
 /*
+ * SDI1 (SDIO WLAN)
+ */
+#ifdef CONFIG_STE_DMA40
+static struct stedma40_chan_cfg sdi1_dma_cfg_rx = {
+	.mode = STEDMA40_MODE_LOGICAL,
+	.dir = STEDMA40_PERIPH_TO_MEM,
+	.src_dev_type = DB8500_DMA_DEV32_SD_MM1_RX,
+	.dst_dev_type = STEDMA40_DEV_DST_MEMORY,
+	.src_info.data_width = STEDMA40_WORD_WIDTH,
+	.dst_info.data_width = STEDMA40_WORD_WIDTH,
+};
+
+static struct stedma40_chan_cfg sdi1_dma_cfg_tx = {
+	.mode = STEDMA40_MODE_LOGICAL,
+	.dir = STEDMA40_MEM_TO_PERIPH,
+	.src_dev_type = STEDMA40_DEV_SRC_MEMORY,
+	.dst_dev_type = DB8500_DMA_DEV32_SD_MM1_TX,
+	.src_info.data_width = STEDMA40_WORD_WIDTH,
+	.dst_info.data_width = STEDMA40_WORD_WIDTH,
+};
+#endif
+
+static struct mmci_platform_data mop500_sdi1_data = {
+	.ocr_mask	= MMC_VDD_29_30,
+	.f_max		= 50000000,
+	.capabilities	= MMC_CAP_4_BIT_DATA,
+	.gpio_cd	= -1,
+	.gpio_wp	= -1,
+#ifdef CONFIG_STE_DMA40
+	.dma_filter	= stedma40_filter,
+	.dma_rx_param	= &sdi1_dma_cfg_rx,
+	.dma_tx_param	= &sdi1_dma_cfg_tx,
+#endif
+};
+
+/*
  * SDI 2 (POP eMMC, not on DB8500ed)
  */
 
@@ -158,7 +197,8 @@ static struct stedma40_chan_cfg mop500_sdi2_dma_cfg_tx = {
 static struct mmci_platform_data mop500_sdi2_data = {
 	.ocr_mask	= MMC_VDD_165_195,
 	.f_max		= 50000000,
-	.capabilities	= MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA,
+	.capabilities	= MMC_CAP_4_BIT_DATA | MMC_CAP_8_BIT_DATA |
+			  MMC_CAP_MMC_HIGHSPEED,
 	.gpio_cd	= -1,
 	.gpio_wp	= -1,
 #ifdef CONFIG_STE_DMA40
@@ -208,20 +248,10 @@ static struct mmci_platform_data mop500_sdi4_data = {
 
 void __init mop500_sdi_init(void)
 {
-	u32 periphid = 0;
-
-	/* v2 has a new version of this block that need to be forced */
-	if (cpu_is_u8500v2())
-		periphid = 0x10480180;
-	/* PoP:ed eMMC on top of DB8500 v1.0 has problems with high speed */
-	if (!cpu_is_u8500v10())
-		mop500_sdi2_data.capabilities |= MMC_CAP_MMC_HIGHSPEED;
-
-	db8500_add_sdi2(&mop500_sdi2_data, periphid);
-
+	/* PoP:ed eMMC */
+	db8500_add_sdi2(&mop500_sdi2_data, U8500_SDI_V2_PERIPHID);
 	/* On-board eMMC */
-	db8500_add_sdi4(&mop500_sdi4_data, periphid);
-
+	db8500_add_sdi4(&mop500_sdi4_data, U8500_SDI_V2_PERIPHID);
 	/*
 	 * On boards with the TC35892 GPIO expander, sdi0 will finally
 	 * be added when the TC35892 initializes and calls
@@ -231,13 +261,9 @@ void __init mop500_sdi_init(void)
 
 void __init snowball_sdi_init(void)
 {
-	u32 periphid = 0x10480180;
-
-	mop500_sdi2_data.capabilities |= MMC_CAP_MMC_HIGHSPEED;
-
 	/* On-board eMMC */
-	db8500_add_sdi4(&mop500_sdi4_data, periphid);
-
+	db8500_add_sdi4(&mop500_sdi4_data, U8500_SDI_V2_PERIPHID);
+	/* External Micro SD slot */
 	mop500_sdi0_data.gpio_cd = SNOWBALL_SDMMC_CD_GPIO;
 	mop500_sdi0_data.cd_invert = true;
 	sdi0_en = SNOWBALL_SDMMC_EN_GPIO;
@@ -247,17 +273,15 @@ void __init snowball_sdi_init(void)
 
 void __init hrefv60_sdi_init(void)
 {
-	u32 periphid = 0x10480180;
-
-	mop500_sdi2_data.capabilities |= MMC_CAP_MMC_HIGHSPEED;
-
-	db8500_add_sdi2(&mop500_sdi2_data, periphid);
-
+	/* PoP:ed eMMC */
+	db8500_add_sdi2(&mop500_sdi2_data, U8500_SDI_V2_PERIPHID);
 	/* On-board eMMC */
-	db8500_add_sdi4(&mop500_sdi4_data, periphid);
-
+	db8500_add_sdi4(&mop500_sdi4_data, U8500_SDI_V2_PERIPHID);
+	/* External Micro SD slot */
 	mop500_sdi0_data.gpio_cd = HREFV60_SDMMC_CD_GPIO;
 	sdi0_en = HREFV60_SDMMC_EN_GPIO;
 	sdi0_vsel = HREFV60_SDMMC_1V8_3V_GPIO;
 	sdi0_configure();
+	/* WLAN SDIO channel */
+	db8500_add_sdi1(&mop500_sdi1_data, U8500_SDI_V2_PERIPHID);
 }
diff --git a/arch/arm/mach-ux500/board-mop500.c b/arch/arm/mach-ux500/board-mop500.c
index de1f5f8f7330..9361a5290177 100644
--- a/arch/arm/mach-ux500/board-mop500.c
+++ b/arch/arm/mach-ux500/board-mop500.c
@@ -673,7 +673,7 @@ static void __init hrefv60_init_machine(void)
 			ARRAY_SIZE(mop500_platform_devs));
 
 	mop500_i2c_init();
-	mop500_sdi_init();
+	hrefv60_sdi_init();
 	mop500_spi_init();
 	mop500_uart_init();
 
diff --git a/arch/arm/mach-ux500/board-mop500.h b/arch/arm/mach-ux500/board-mop500.h
index de18a2a23e6e..f926d3db6207 100644
--- a/arch/arm/mach-ux500/board-mop500.h
+++ b/arch/arm/mach-ux500/board-mop500.h
@@ -7,40 +7,77 @@
 #ifndef __BOARD_MOP500_H
 #define __BOARD_MOP500_H
 
-/* snowball GPIO for MMC card */
-#define SNOWBALL_SDMMC_EN_GPIO 217
-#define SNOWBALL_SDMMC_1V8_3V_GPIO 228
-#define SNOWBALL_SDMMC_CD_GPIO 218
+/* Snowball specific GPIO assignments, this board has no GPIO expander */
+#define SNOWBALL_ACCEL_INT1_GPIO	163
+#define SNOWBALL_ACCEL_INT2_GPIO	164
+#define SNOWBALL_MAGNET_DRDY_GPIO	165
+#define SNOWBALL_SDMMC_EN_GPIO		217
+#define SNOWBALL_SDMMC_1V8_3V_GPIO	228
+#define SNOWBALL_SDMMC_CD_GPIO		218
 
 /* HREFv60-specific GPIO assignments, this board has no GPIO expander */
-#define HREFV60_TOUCH_RST_GPIO		143
-#define HREFV60_PROX_SENSE_GPIO		217
-#define HREFV60_HAL_SW_GPIO		145
-#define HREFV60_SDMMC_EN_GPIO		169
 #define HREFV60_SDMMC_1V8_3V_GPIO	5
-#define HREFV60_SDMMC_CD_GPIO		95
-#define HREFV60_ACCEL_INT1_GPIO		82
-#define HREFV60_ACCEL_INT2_GPIO		83
+#define HREFV60_CAMERA_FLASH_ENABLE	21
 #define HREFV60_MAGNET_DRDY_GPIO	32
 #define HREFV60_DISP1_RST_GPIO		65
 #define HREFV60_DISP2_RST_GPIO		66
+#define HREFV60_ACCEL_INT1_GPIO		82
+#define HREFV60_ACCEL_INT2_GPIO		83
+#define HREFV60_SDMMC_CD_GPIO		95
+#define HREFV60_XSHUTDOWN_SECONDARY_SENSOR 140
+#define HREFV60_TOUCH_RST_GPIO		143
+#define HREFV60_HAL_SW_GPIO		145
+#define HREFV60_SDMMC_EN_GPIO		169
+#define HREFV60_MMIO_XENON_CHARGE	170
+#define HREFV60_PROX_SENSE_GPIO		217
+
+/* MOP500 generic GPIOs */
+#define CAMERA_FLASH_INT_PIN		7
+#define CYPRESS_TOUCH_INT_PIN		84
+#define XSHUTDOWN_PRIMARY_SENSOR	141
+#define XSHUTDOWN_SECONDARY_SENSOR	142
+#define CYPRESS_TOUCH_RST_GPIO		143
+#define MOP500_HDMI_RST_GPIO		196
+#define CYPRESS_SLAVE_SELECT_GPIO	216
 
 /* GPIOs on the TC35892 expander */
 #define MOP500_EGPIO(x)			(NOMADIK_NR_GPIO + (x))
+#define GPIO_MAGNET_DRDY		MOP500_EGPIO(1)
 #define GPIO_SDMMC_CD			MOP500_EGPIO(3)
+#define GPIO_CAMERA_FLASH_ENABLE	MOP500_EGPIO(4)
+#define GPIO_MMIO_XENON_CHARGE		MOP500_EGPIO(5)
 #define GPIO_PROX_SENSOR		MOP500_EGPIO(7)
+#define GPIO_HAL_SENSOR			MOP500_EGPIO(8)
+#define GPIO_ACCEL_INT1			MOP500_EGPIO(10)
+#define GPIO_ACCEL_INT2			MOP500_EGPIO(11)
 #define GPIO_BU21013_CS			MOP500_EGPIO(13)
+#define MOP500_DISP2_RST_GPIO		MOP500_EGPIO(14)
+#define MOP500_DISP1_RST_GPIO		MOP500_EGPIO(15)
 #define GPIO_SDMMC_EN			MOP500_EGPIO(17)
 #define GPIO_SDMMC_1V8_3V_SEL		MOP500_EGPIO(18)
 #define MOP500_EGPIO_END		MOP500_EGPIO(24)
 
-/* GPIOs on the AB8500 mixed-signals circuit */
-#define MOP500_AB8500_GPIO(x)		(MOP500_EGPIO_END + (x))
+/*
+ * GPIOs on the AB8500 mixed-signals circuit
+ * Notice that we subtract 1 from the number passed into the macro, this is
+ * because the AB8500 GPIO pins are enumbered starting from 1, so the value in
+ * parens matches the GPIO pin number in the data sheet.
+ */
+#define MOP500_AB8500_GPIO(x)		(MOP500_EGPIO_END + (x) - 1)
+/*Snowball AB8500 GPIO */
+#define SNOWBALL_VSMPS2_1V8_GPIO	MOP500_AB8500_PIN_GPIO(1)	/* SYSCLKREQ2/GPIO1 */
+#define SNOWBALL_PM_GPIO1_GPIO		MOP500_AB8500_PIN_GPIO(2)	/* SYSCLKREQ3/GPIO2 */
+#define SNOWBALL_WLAN_CLK_REQ_GPIO	MOP500_AB8500_PIN_GPIO(3)	/* SYSCLKREQ4/GPIO3 */
+#define SNOWBALL_PM_GPIO4_GPIO		MOP500_AB8500_PIN_GPIO(4)	/* SYSCLKREQ6/GPIO4 */
+#define SNOWBALL_EN_3V6_GPIO		MOP500_AB8500_PIN_GPIO(16)	/* PWMOUT3/GPIO16 */
+#define SNOWBALL_PME_ETH_GPIO		MOP500_AB8500_PIN_GPIO(24)	/* SYSCLKREQ7/GPIO24 */
+#define SNOWBALL_EN_3V3_ETH_GPIO	MOP500_AB8500_PIN_GPIO(26)	/* GPIO26 */
 
 struct i2c_board_info;
 
 extern void mop500_sdi_init(void);
 extern void snowball_sdi_init(void);
+extern void hrefv60_sdi_init(void);
 extern void mop500_sdi_tc35892_init(void);
 void __init mop500_u8500uib_init(void);
 void __init mop500_stuib_init(void);
diff --git a/arch/arm/mach-ux500/clock.c b/arch/arm/mach-ux500/clock.c
index e832664d1bd9..737907537004 100644
--- a/arch/arm/mach-ux500/clock.c
+++ b/arch/arm/mach-ux500/clock.c
@@ -239,23 +239,6 @@ static void clk_prcmu_disable(struct clk *clk)
 	writel(1 << clk->prcmu_cg_bit, cg_clr_reg);
 }
 
-/* ED doesn't have the combined set/clr registers */
-static void clk_prcmu_ed_enable(struct clk *clk)
-{
-	void __iomem *addr = __io_address(U8500_PRCMU_BASE)
-			     + clk->prcmu_cg_mgt;
-
-	writel(readl(addr) | PRCM_MGT_ENABLE, addr);
-}
-
-static void clk_prcmu_ed_disable(struct clk *clk)
-{
-	void __iomem *addr = __io_address(U8500_PRCMU_BASE)
-			     + clk->prcmu_cg_mgt;
-
-	writel(readl(addr) & ~PRCM_MGT_ENABLE, addr);
-}
-
 static struct clkops clk_prcmu_ops = {
 	.enable = clk_prcmu_enable,
 	.disable = clk_prcmu_disable,
@@ -267,7 +250,6 @@ static unsigned int clkrst_base[] = {
 	[3] = U8500_CLKRST3_BASE,
 	[5] = U8500_CLKRST5_BASE,
 	[6] = U8500_CLKRST6_BASE,
-	[7] = U8500_CLKRST7_BASE_ED,
 };
 
 static void clk_prcc_enable(struct clk *clk)
@@ -321,7 +303,6 @@ static DEFINE_PRCMU_CLK(per2clk,	0x0, 12, PER2CLK);
 static DEFINE_PRCMU_CLK(per3clk,	0x0, 13, PER3CLK);
 static DEFINE_PRCMU_CLK(per5clk,	0x0, 14, PER5CLK);
 static DEFINE_PRCMU_CLK_RATE(per6clk,	0x0, 15, PER6CLK, 133330000);
-static DEFINE_PRCMU_CLK_RATE(per7clk,	0x0, 16, PER7CLK, 100000000);
 static DEFINE_PRCMU_CLK(lcdclk,		0x0, 17, LCDCLK);
 static DEFINE_PRCMU_CLK(bmlclk,		0x0, 18, BMLCLK);
 static DEFINE_PRCMU_CLK(hsitxclk,	0x0, 19, HSITXCLK);
@@ -351,44 +332,28 @@ static DEFINE_PRCMU_CLK(uiccclk,	0x4, 1, UICCCLK); /* v1 */
 static DEFINE_PRCC_CLK(1, i2c4,		10, 9, &clk_i2cclk);
 static DEFINE_PRCC_CLK(1, gpio0,	9, -1, NULL);
 static DEFINE_PRCC_CLK(1, slimbus0,	8,  8, &clk_slimclk);
-static DEFINE_PRCC_CLK(1, spi3_ed,	7,  7, NULL);
-static DEFINE_PRCC_CLK(1, spi3_v1,	7, -1, NULL);
+static DEFINE_PRCC_CLK(1, spi3,		7, -1, NULL);
 static DEFINE_PRCC_CLK(1, i2c2,		6,  6, &clk_i2cclk);
 static DEFINE_PRCC_CLK(1, sdi0,		5,  5, &clk_sdmmcclk);
-static DEFINE_PRCC_CLK(1, msp1_ed,	4,  4, &clk_msp02clk);
-static DEFINE_PRCC_CLK(1, msp1_v1,	4,  4, &clk_msp1clk);
+static DEFINE_PRCC_CLK(1, msp1,		4,  4, &clk_msp1clk);
 static DEFINE_PRCC_CLK(1, msp0,		3,  3, &clk_msp02clk);
 static DEFINE_PRCC_CLK(1, i2c1,		2,  2, &clk_i2cclk);
 static DEFINE_PRCC_CLK(1, uart1,	1,  1, &clk_uartclk);
 static DEFINE_PRCC_CLK(1, uart0,	0,  0, &clk_uartclk);
 
 /* Peripheral Cluster #2 */
-
-static DEFINE_PRCC_CLK(2, gpio1_ed,	12, -1, NULL);
-static DEFINE_PRCC_CLK(2, ssitx_ed,	11, -1, NULL);
-static DEFINE_PRCC_CLK(2, ssirx_ed,	10, -1, NULL);
-static DEFINE_PRCC_CLK(2, spi0_ed,	 9, -1, NULL);
-static DEFINE_PRCC_CLK(2, sdi3_ed,	 8,  6, &clk_sdmmcclk);
-static DEFINE_PRCC_CLK(2, sdi1_ed,	 7,  5, &clk_sdmmcclk);
-static DEFINE_PRCC_CLK(2, msp2_ed,	 6,  4, &clk_msp02clk);
-static DEFINE_PRCC_CLK(2, sdi4_ed,	 4,  2, &clk_sdmmcclk);
-static DEFINE_PRCC_CLK(2, pwl_ed,	 3,  1, NULL);
-static DEFINE_PRCC_CLK(2, spi1_ed,	 2, -1, NULL);
-static DEFINE_PRCC_CLK(2, spi2_ed,	 1, -1, NULL);
-static DEFINE_PRCC_CLK(2, i2c3_ed,	 0,  0, &clk_i2cclk);
-
-static DEFINE_PRCC_CLK(2, gpio1_v1,	11, -1, NULL);
-static DEFINE_PRCC_CLK(2, ssitx_v1,	10,  7, NULL);
-static DEFINE_PRCC_CLK(2, ssirx_v1,	 9,  6, NULL);
-static DEFINE_PRCC_CLK(2, spi0_v1,	 8, -1, NULL);
-static DEFINE_PRCC_CLK(2, sdi3_v1,	 7,  5, &clk_sdmmcclk);
-static DEFINE_PRCC_CLK(2, sdi1_v1,	 6,  4, &clk_sdmmcclk);
-static DEFINE_PRCC_CLK(2, msp2_v1,	 5,  3, &clk_msp02clk);
-static DEFINE_PRCC_CLK(2, sdi4_v1,	 4,  2, &clk_sdmmcclk);
-static DEFINE_PRCC_CLK(2, pwl_v1,	 3,  1, NULL);
-static DEFINE_PRCC_CLK(2, spi1_v1,	 2, -1, NULL);
-static DEFINE_PRCC_CLK(2, spi2_v1,	 1, -1, NULL);
-static DEFINE_PRCC_CLK(2, i2c3_v1,	 0,  0, &clk_i2cclk);
+static DEFINE_PRCC_CLK(2, gpio1,	11, -1, NULL);
+static DEFINE_PRCC_CLK(2, ssitx,	10,  7, NULL);
+static DEFINE_PRCC_CLK(2, ssirx,	 9,  6, NULL);
+static DEFINE_PRCC_CLK(2, spi0,		8, -1, NULL);
+static DEFINE_PRCC_CLK(2, sdi3,		7,  5, &clk_sdmmcclk);
+static DEFINE_PRCC_CLK(2, sdi1,		6,  4, &clk_sdmmcclk);
+static DEFINE_PRCC_CLK(2, msp2,		5,  3, &clk_msp02clk);
+static DEFINE_PRCC_CLK(2, sdi4,		4,  2, &clk_sdmmcclk);
+static DEFINE_PRCC_CLK(2, pwl,		3,  1, NULL);
+static DEFINE_PRCC_CLK(2, spi1,		2, -1, NULL);
+static DEFINE_PRCC_CLK(2, spi2,		1, -1, NULL);
+static DEFINE_PRCC_CLK(2, i2c3,		0,  0, &clk_i2cclk);
 
 /* Peripheral Cluster #3 */
 static DEFINE_PRCC_CLK(3, gpio2,	8, -1, NULL);
@@ -397,49 +362,34 @@ static DEFINE_PRCC_CLK(3, uart2,	6,  6, &clk_uartclk);
 static DEFINE_PRCC_CLK(3, ske,		5,  5, &clk_32khz);
 static DEFINE_PRCC_CLK(3, sdi2,		4,  4, &clk_sdmmcclk);
 static DEFINE_PRCC_CLK(3, i2c0,		3,  3, &clk_i2cclk);
-static DEFINE_PRCC_CLK(3, ssp1_ed,	2,  2, &clk_i2cclk);
-static DEFINE_PRCC_CLK(3, ssp0_ed,	1,  1, &clk_i2cclk);
-static DEFINE_PRCC_CLK(3, ssp1_v1,	2,  2, &clk_sspclk);
-static DEFINE_PRCC_CLK(3, ssp0_v1,	1,  1, &clk_sspclk);
+static DEFINE_PRCC_CLK(3, ssp1,		2,  2, &clk_sspclk);
+static DEFINE_PRCC_CLK(3, ssp0,		1,  1, &clk_sspclk);
 static DEFINE_PRCC_CLK(3, fsmc,		0, -1, NULL);
 
 /* Peripheral Cluster #4 is in the always on domain */
 
 /* Peripheral Cluster #5 */
 static DEFINE_PRCC_CLK(5, gpio3,	1, -1, NULL);
-static DEFINE_PRCC_CLK(5, usb_ed,	0,  0, &clk_i2cclk);
-static DEFINE_PRCC_CLK(5, usb_v1,	0,  0, NULL);
+static DEFINE_PRCC_CLK(5, usb,		0,  0, NULL);
 
 /* Peripheral Cluster #6 */
 
 /* MTU ID in data */
-static DEFINE_PRCC_CLK_CUSTOM(6, mtu1_v1, 8, -1, NULL, clk_mtu_get_rate, 1);
-static DEFINE_PRCC_CLK_CUSTOM(6, mtu0_v1, 7, -1, NULL, clk_mtu_get_rate, 0);
-static DEFINE_PRCC_CLK(6, cfgreg_v1,	6,  6, NULL);
-static DEFINE_PRCC_CLK(6, dmc_ed,	6,  6, NULL);
+static DEFINE_PRCC_CLK_CUSTOM(6, mtu1, 8, -1, NULL, clk_mtu_get_rate, 1);
+static DEFINE_PRCC_CLK_CUSTOM(6, mtu0, 7, -1, NULL, clk_mtu_get_rate, 0);
+static DEFINE_PRCC_CLK(6, cfgreg,	6,  6, NULL);
 static DEFINE_PRCC_CLK(6, hash1,	5, -1, NULL);
-static DEFINE_PRCC_CLK(6, unipro_v1,	4,  1, &clk_uniproclk);
-static DEFINE_PRCC_CLK(6, cryp1_ed,	4, -1, NULL);
+static DEFINE_PRCC_CLK(6, unipro,	4,  1, &clk_uniproclk);
 static DEFINE_PRCC_CLK(6, pka,		3, -1, NULL);
 static DEFINE_PRCC_CLK(6, hash0,	2, -1, NULL);
 static DEFINE_PRCC_CLK(6, cryp0,	1, -1, NULL);
-static DEFINE_PRCC_CLK(6, rng_ed,	0,  0, &clk_i2cclk);
-static DEFINE_PRCC_CLK(6, rng_v1,	0,  0, &clk_rngclk);
-
-/* Peripheral Cluster #7 */
-
-static DEFINE_PRCC_CLK(7, tzpc0_ed,	4, -1, NULL);
-/* MTU ID in data */
-static DEFINE_PRCC_CLK_CUSTOM(7, mtu1_ed, 3, -1, NULL, clk_mtu_get_rate, 1);
-static DEFINE_PRCC_CLK_CUSTOM(7, mtu0_ed, 2, -1, NULL, clk_mtu_get_rate, 0);
-static DEFINE_PRCC_CLK(7, wdg_ed,	1, -1, NULL);
-static DEFINE_PRCC_CLK(7, cfgreg_ed,	0, -1, NULL);
+static DEFINE_PRCC_CLK(6, rng,	0,  0, &clk_rngclk);
 
 static struct clk clk_dummy_apb_pclk = {
 	.name = "apb_pclk",
 };
 
-static struct clk_lookup u8500_common_clks[] = {
+static struct clk_lookup u8500_clks[] = {
 	CLK(dummy_apb_pclk, NULL,	"apb_pclk"),
 
 	/* Peripheral Cluster #1 */
@@ -494,83 +444,41 @@ static struct clk_lookup u8500_common_clks[] = {
 	CLK(dmaclk,	"dma40.0",	NULL),
 	CLK(b2r2clk,	"b2r2",		NULL),
 	CLK(tvclk,	"tv",		NULL),
-};
 
-static struct clk_lookup u8500_ed_clks[] = {
-	/* Peripheral Cluster #1 */
-	CLK(spi3_ed,	"spi3",		NULL),
-	CLK(msp1_ed,	"msp1",		NULL),
-
-	/* Peripheral Cluster #2 */
-	CLK(gpio1_ed,	"gpio.6",	NULL),
-	CLK(gpio1_ed,	"gpio.7",	NULL),
-	CLK(ssitx_ed,	"ssitx",	NULL),
-	CLK(ssirx_ed,	"ssirx",	NULL),
-	CLK(spi0_ed,	"spi0",		NULL),
-	CLK(sdi3_ed,	"sdi3",		NULL),
-	CLK(sdi1_ed,	"sdi1",		NULL),
-	CLK(msp2_ed,	"msp2",		NULL),
-	CLK(sdi4_ed,	"sdi4",		NULL),
-	CLK(pwl_ed,	"pwl",		NULL),
-	CLK(spi1_ed,	"spi1",		NULL),
-	CLK(spi2_ed,	"spi2",		NULL),
-	CLK(i2c3_ed,	"nmk-i2c.3",	NULL),
-
-	/* Peripheral Cluster #3 */
-	CLK(ssp1_ed,	"ssp1",		NULL),
-	CLK(ssp0_ed,	"ssp0",		NULL),
-
-	/* Peripheral Cluster #5 */
-	CLK(usb_ed,	"musb-ux500.0",	"usb"),
-
-	/* Peripheral Cluster #6 */
-	CLK(dmc_ed,	"dmc",		NULL),
-	CLK(cryp1_ed,	"cryp1",	NULL),
-	CLK(rng_ed,	"rng",		NULL),
-
-	/* Peripheral Cluster #7 */
-	CLK(tzpc0_ed,	"tzpc0",	NULL),
-	CLK(mtu1_ed,	"mtu1",		NULL),
-	CLK(mtu0_ed,	"mtu0",		NULL),
-	CLK(wdg_ed,	"wdg",		NULL),
-	CLK(cfgreg_ed,	"cfgreg",	NULL),
-};
-
-static struct clk_lookup u8500_v1_clks[] = {
 	/* Peripheral Cluster #1 */
 	CLK(i2c4,	"nmk-i2c.4",	NULL),
-	CLK(spi3_v1,	"spi3",		NULL),
-	CLK(msp1_v1,	"msp1",		NULL),
+	CLK(spi3,	"spi3",		NULL),
+	CLK(msp1,	"msp1",		NULL),
 
 	/* Peripheral Cluster #2 */
-	CLK(gpio1_v1,	"gpio.6",	NULL),
-	CLK(gpio1_v1,	"gpio.7",	NULL),
-	CLK(ssitx_v1,	"ssitx",	NULL),
-	CLK(ssirx_v1,	"ssirx",	NULL),
-	CLK(spi0_v1,	"spi0",		NULL),
-	CLK(sdi3_v1,	"sdi3",		NULL),
-	CLK(sdi1_v1,	"sdi1",		NULL),
-	CLK(msp2_v1,	"msp2",		NULL),
-	CLK(sdi4_v1,	"sdi4",		NULL),
-	CLK(pwl_v1,	"pwl",		NULL),
-	CLK(spi1_v1,	"spi1",		NULL),
-	CLK(spi2_v1,	"spi2",		NULL),
-	CLK(i2c3_v1,	"nmk-i2c.3",	NULL),
+	CLK(gpio1,	"gpio.6",	NULL),
+	CLK(gpio1,	"gpio.7",	NULL),
+	CLK(ssitx,	"ssitx",	NULL),
+	CLK(ssirx,	"ssirx",	NULL),
+	CLK(spi0,	"spi0",		NULL),
+	CLK(sdi3,	"sdi3",		NULL),
+	CLK(sdi1,	"sdi1",		NULL),
+	CLK(msp2,	"msp2",		NULL),
+	CLK(sdi4,	"sdi4",		NULL),
+	CLK(pwl,	"pwl",		NULL),
+	CLK(spi1,	"spi1",		NULL),
+	CLK(spi2,	"spi2",		NULL),
+	CLK(i2c3,	"nmk-i2c.3",	NULL),
 
 	/* Peripheral Cluster #3 */
-	CLK(ssp1_v1,	"ssp1",		NULL),
-	CLK(ssp0_v1,	"ssp0",		NULL),
+	CLK(ssp1,	"ssp1",		NULL),
+	CLK(ssp0,	"ssp0",		NULL),
 
 	/* Peripheral Cluster #5 */
-	CLK(usb_v1,	"musb-ux500.0",	"usb"),
+	CLK(usb,	"musb-ux500.0",	"usb"),
 
 	/* Peripheral Cluster #6 */
-	CLK(mtu1_v1,	"mtu1",		NULL),
-	CLK(mtu0_v1,	"mtu0",		NULL),
-	CLK(cfgreg_v1,	"cfgreg",	NULL),
+	CLK(mtu1,	"mtu1",		NULL),
+	CLK(mtu0,	"mtu0",		NULL),
+	CLK(cfgreg,	"cfgreg",	NULL),
 	CLK(hash1,	"hash1",	NULL),
-	CLK(unipro_v1,	"unipro",	NULL),
-	CLK(rng_v1,	"rng",		NULL),
+	CLK(unipro,	"unipro",	NULL),
+	CLK(rng,	"rng",		NULL),
 
 	/* PRCMU level clock gating */
 
@@ -743,7 +651,7 @@ err_out:
 late_initcall(clk_debugfs_init);
 #endif /* defined(CONFIG_DEBUG_FS) */
 
-unsigned long clk_smp_twd_rate = 400000000;
+unsigned long clk_smp_twd_rate = 500000000;
 
 unsigned long clk_smp_twd_get_rate(struct clk *clk)
 {
@@ -769,7 +677,7 @@ static int clk_twd_cpufreq_transition(struct notifier_block *nb,
 
 	if (state == CPUFREQ_PRECHANGE) {
 		/* Save frequency in simple Hz */
-		clk_smp_twd_rate = f->new * 1000;
+		clk_smp_twd_rate = (f->new * 1000) / 2;
 	}
 
 	return NOTIFY_OK;
@@ -790,11 +698,7 @@ late_initcall(clk_init_smp_twd_cpufreq);
 
 int __init clk_init(void)
 {
-	if (cpu_is_u8500ed()) {
-		clk_prcmu_ops.enable = clk_prcmu_ed_enable;
-		clk_prcmu_ops.disable = clk_prcmu_ed_disable;
-		clk_per6clk.rate = 100000000;
-	} else if (cpu_is_u5500()) {
+	if (cpu_is_u5500()) {
 		/* Clock tree for U5500 not implemented yet */
 		clk_prcc_ops.enable = clk_prcc_ops.disable = NULL;
 		clk_prcmu_ops.enable = clk_prcmu_ops.disable = NULL;
@@ -802,20 +706,11 @@ int __init clk_init(void)
 		clk_sdmmcclk.rate = 99900000;
 	}
 
-	clkdev_add_table(u8500_common_clks, ARRAY_SIZE(u8500_common_clks));
-	if (cpu_is_u8500ed())
-		clkdev_add_table(u8500_ed_clks, ARRAY_SIZE(u8500_ed_clks));
-	else
-		clkdev_add_table(u8500_v1_clks, ARRAY_SIZE(u8500_v1_clks));
-
+	clkdev_add_table(u8500_clks, ARRAY_SIZE(u8500_clks));
 	clkdev_add(&clk_smp_twd_lookup);
 
 #ifdef CONFIG_DEBUG_FS
-	clk_debugfs_add_table(u8500_common_clks, ARRAY_SIZE(u8500_common_clks));
-	if (cpu_is_u8500ed())
-		clk_debugfs_add_table(u8500_ed_clks, ARRAY_SIZE(u8500_ed_clks));
-	else
-		clk_debugfs_add_table(u8500_v1_clks, ARRAY_SIZE(u8500_v1_clks));
+	clk_debugfs_add_table(u8500_clks, ARRAY_SIZE(u8500_clks));
 #endif
 	return 0;
 }
diff --git a/arch/arm/mach-ux500/cpu-db5500.c b/arch/arm/mach-ux500/cpu-db5500.c
index 5323286b265e..18aa5c05c69e 100644
--- a/arch/arm/mach-ux500/cpu-db5500.c
+++ b/arch/arm/mach-ux500/cpu-db5500.c
@@ -46,26 +46,6 @@ static struct map_desc u5500_io_desc[] __initdata = {
 	__IO_DEV_DESC(U5500_PRCMU_TCDM_BASE, SZ_4K),
 };
 
-static struct resource db5500_pmu_resources[] = {
-	[0] = {
-		.start		= IRQ_DB5500_PMU0,
-		.end		= IRQ_DB5500_PMU0,
-		.flags		= IORESOURCE_IRQ,
-	},
-	[1] = {
-		.start		= IRQ_DB5500_PMU1,
-		.end		= IRQ_DB5500_PMU1,
-		.flags		= IORESOURCE_IRQ,
-	},
-};
-
-static struct platform_device db5500_pmu_device = {
-	.name			= "arm-pmu",
-	.id			= ARM_PMU_DEVICE_CPU,
-	.num_resources		= ARRAY_SIZE(db5500_pmu_resources),
-	.resource		= db5500_pmu_resources,
-};
-
 static struct resource mbox0_resources[] = {
 	{
 		.name = "mbox_peer",
@@ -151,7 +131,6 @@ static struct platform_device mbox2_device = {
 };
 
 static struct platform_device *db5500_platform_devs[] __initdata = {
-	&db5500_pmu_device,
 	&mbox0_device,
 	&mbox1_device,
 	&mbox2_device,
@@ -192,6 +171,25 @@ void __init u5500_map_io(void)
 	_PRCMU_BASE = __io_address(U5500_PRCMU_BASE);
 }
 
+static void __init db5500_pmu_init(void)
+{
+	struct resource res[] = {
+		[0] = {
+			.start		= IRQ_DB5500_PMU0,
+			.end		= IRQ_DB5500_PMU0,
+			.flags		= IORESOURCE_IRQ,
+		},
+		[1] = {
+			.start		= IRQ_DB5500_PMU1,
+			.end		= IRQ_DB5500_PMU1,
+			.flags		= IORESOURCE_IRQ,
+		},
+	};
+
+	platform_device_register_simple("arm-pmu", ARM_PMU_DEVICE_CPU,
+					res, ARRAY_SIZE(res));
+}
+
 static int usb_db5500_rx_dma_cfg[] = {
 	DB5500_DMA_DEV4_USB_OTG_IEP_1_9,
 	DB5500_DMA_DEV5_USB_OTG_IEP_2_10,
@@ -217,6 +215,7 @@ static int usb_db5500_tx_dma_cfg[] = {
 void __init u5500_init_devices(void)
 {
 	db5500_add_gpios();
+	db5500_pmu_init();
 	db5500_dma_init();
 	db5500_add_rtc();
 	db5500_add_usb(usb_db5500_rx_dma_cfg, usb_db5500_tx_dma_cfg);
diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c
index 7f2729c05db3..7176ee7491ab 100644
--- a/arch/arm/mach-ux500/cpu-db8500.c
+++ b/arch/arm/mach-ux500/cpu-db8500.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2008-2009 ST-Ericsson
+ * Copyright (C) 2008-2009 ST-Ericsson SA
  *
  * Author: Srinidhi KASAGAR <srinidhi.kasagar@stericsson.com>
  *
@@ -53,19 +53,6 @@ static struct map_desc u8500_io_desc[] __initdata = {
 	__IO_DEV_DESC(U8500_GPIO1_BASE, SZ_4K),
 	__IO_DEV_DESC(U8500_GPIO2_BASE, SZ_4K),
 	__IO_DEV_DESC(U8500_GPIO3_BASE, SZ_4K),
-};
-
-static struct map_desc u8500_ed_io_desc[] __initdata = {
-	__IO_DEV_DESC(U8500_MTU0_BASE_ED, SZ_4K),
-	__IO_DEV_DESC(U8500_CLKRST7_BASE_ED, SZ_8K),
-};
-
-static struct map_desc u8500_v1_io_desc[] __initdata = {
-	__IO_DEV_DESC(U8500_MTU0_BASE, SZ_4K),
-	__IO_DEV_DESC(U8500_PRCMU_TCDM_BASE_V1, SZ_4K),
-};
-
-static struct map_desc u8500_v2_io_desc[] __initdata = {
 	__IO_DEV_DESC(U8500_PRCMU_TCDM_BASE, SZ_4K),
 };
 
@@ -80,13 +67,6 @@ void __init u8500_map_io(void)
 
 	iotable_init(u8500_io_desc, ARRAY_SIZE(u8500_io_desc));
 
-	if (cpu_is_u8500ed())
-		iotable_init(u8500_ed_io_desc, ARRAY_SIZE(u8500_ed_io_desc));
-	else if (cpu_is_u8500v1())
-		iotable_init(u8500_v1_io_desc, ARRAY_SIZE(u8500_v1_io_desc));
-	else if (cpu_is_u8500v2())
-		iotable_init(u8500_v2_io_desc, ARRAY_SIZE(u8500_v2_io_desc));
-
 	_PRCMU_BASE = __io_address(U8500_PRCMU_BASE);
 }
 
@@ -155,12 +135,9 @@ static resource_size_t __initdata db8500_gpio_base[] = {
 static void __init db8500_add_gpios(void)
 {
 	struct nmk_gpio_platform_data pdata = {
-		/* No custom data yet */
+		.supports_sleepmode = true,
 	};
 
-	if (cpu_is_u8500v2())
-		pdata.supports_sleepmode = true;
-
 	dbx500_add_gpios(ARRAY_AND_SIZE(db8500_gpio_base),
 			 IRQ_DB8500_GPIO0, &pdata);
 }
@@ -192,9 +169,6 @@ static int usb_db8500_tx_dma_cfg[] = {
  */
 void __init u8500_init_devices(void)
 {
-	if (cpu_is_u8500ed())
-		dma40_u8500ed_fixup();
-
 	db8500_add_rtc();
 	db8500_add_gpios();
 	db8500_add_usb(usb_db8500_rx_dma_cfg, usb_db8500_tx_dma_cfg);
diff --git a/arch/arm/mach-ux500/devices-db8500.c b/arch/arm/mach-ux500/devices-db8500.c
index 73b17404b194..a7c6cdc9b11e 100644
--- a/arch/arm/mach-ux500/devices-db8500.c
+++ b/arch/arm/mach-ux500/devices-db8500.c
@@ -166,16 +166,6 @@ struct platform_device u8500_dma40_device = {
 	.resource = dma40_resources
 };
 
-void dma40_u8500ed_fixup(void)
-{
-	dma40_plat_data.memcpy = NULL;
-	dma40_plat_data.memcpy_len = 0;
-	dma40_resources[0].start = U8500_DMA_BASE_ED;
-	dma40_resources[0].end = U8500_DMA_BASE_ED + SZ_4K - 1;
-	dma40_resources[1].start = U8500_DMA_LCPA_BASE_ED;
-	dma40_resources[1].end = U8500_DMA_LCPA_BASE_ED + 2 * SZ_1K - 1;
-}
-
 struct resource keypad_resources[] = {
 	[0] = {
 		.start = U8500_SKE_BASE,
diff --git a/arch/arm/mach-ux500/id.c b/arch/arm/mach-ux500/id.c
index d35122ebc67b..15a0f63b2e2b 100644
--- a/arch/arm/mach-ux500/id.c
+++ b/arch/arm/mach-ux500/id.c
@@ -65,6 +65,7 @@ static unsigned int partnumber(unsigned int asicid)
  * DB8500v1	0x411fc091	0x9001FFF4		0x008500A0
  * DB8500v1.1	0x411fc091	0x9001FFF4		0x008500A1
  * DB8500v2	0x412fc091	0x9001DBF4		0x008500B0
+ * DB8520v2.2	0x412fc091	0x9001DBF4		0x008500B2
  * DB5500v1	0x412fc091	0x9001FFF4		0x005500A0
  */
 
@@ -80,9 +81,10 @@ void __init ux500_map_io(void)
 		addr = 0x9001FFF4;
 		break;
 
-	case 0x412fc091: /* DB8500v2 / DB5500v1 */
+	case 0x412fc091: /* DB8520 / DB8500v2 / DB5500v1 */
 		asicid = ux500_read_asicid(0x9001DBF4);
-		if (partnumber(asicid) == 0x8500)
+		if (partnumber(asicid) == 0x8500 ||
+		    partnumber(asicid) == 0x8520)
 			/* DB8500v2 */
 			break;
 
diff --git a/arch/arm/mach-ux500/include/mach/db5500-regs.h b/arch/arm/mach-ux500/include/mach/db5500-regs.h
index 994b5fe6f85a..8e714bcb099f 100644
--- a/arch/arm/mach-ux500/include/mach/db5500-regs.h
+++ b/arch/arm/mach-ux500/include/mach/db5500-regs.h
@@ -65,8 +65,11 @@
 #define U5500_PRCMU_TIMER_4_BASE (U5500_PER4_BASE + 0x07450)
 #define U5500_MSP1_BASE		(U5500_PER4_BASE + 0x9000)
 #define U5500_GPIO2_BASE	(U5500_PER4_BASE + 0xA000)
+#define U5500_MTIMER_BASE	(U5500_PER4_BASE + 0xC000)
 #define U5500_CDETECT_BASE	(U5500_PER4_BASE + 0xF000)
 #define U5500_PRCMU_TCDM_BASE	(U5500_PER4_BASE + 0x18000)
+#define U5500_PRCMU_TCPM_BASE	(U5500_PER4_BASE + 0x10000)
+#define U5500_TPIU_BASE		(U5500_PER4_BASE + 0x50000)
 
 #define U5500_SPI0_BASE		(U5500_PER5_BASE + 0x0000)
 #define U5500_SPI1_BASE		(U5500_PER5_BASE + 0x1000)
@@ -125,6 +128,7 @@
 #define U5500_ACCCON_BASE		(0xBFFF1000)
 #define U5500_ACCCON_CPUVEC_RESET_ADDR_OFFSET (0x00000020)
 #define U5500_ACCCON_ACC_CPU_CTRL_OFFSET (0x000000BC)
+#define U5500_INTCON_MBOX1_INT_RESET_ADDR	(0xBFFD31A4)
 
 #define U5500_ESRAM_BASE	        0x40000000
 #define U5500_ESRAM_DMA_LCPA_OFFSET	0x10000
diff --git a/arch/arm/mach-ux500/include/mach/db8500-regs.h b/arch/arm/mach-ux500/include/mach/db8500-regs.h
index 751b0e6938d4..80e10f50282e 100644
--- a/arch/arm/mach-ux500/include/mach/db8500-regs.h
+++ b/arch/arm/mach-ux500/include/mach/db8500-regs.h
@@ -22,7 +22,9 @@
 #define U8500_ESRAM_DMA_LCPA_OFFSET     0x10000
 
 #define U8500_DMA_LCPA_BASE    (U8500_ESRAM_BANK0 + U8500_ESRAM_DMA_LCPA_OFFSET)
-#define U8500_DMA_LCPA_BASE_ED	(U8500_ESRAM_BANK4 + 0x4000)
+
+/* This address fulfills the 256k alignment requirement of the lcla base */
+#define U8500_DMA_LCLA_BASE	U8500_ESRAM_BANK4
 
 #define U8500_PER3_BASE		0x80000000
 #define U8500_STM_BASE		0x80100000
@@ -40,15 +42,14 @@
 #define U8500_ASIC_ID_BASE	0x9001D000
 
 #define U8500_PER6_BASE		0xa03c0000
+#define U8500_PER7_BASE		0xa03d0000
 #define U8500_PER5_BASE		0xa03e0000
-#define U8500_PER7_BASE_ED	0xa03d0000
 
 #define U8500_SVA_BASE		0xa0100000
 #define U8500_SIA_BASE		0xa0200000
 
 #define U8500_SGA_BASE		0xa0300000
 #define U8500_MCDE_BASE		0xa0350000
-#define U8500_DMA_BASE_ED	0xa0362000
 #define U8500_DMA_BASE		0x801C0000	/* v1 */
 
 #define U8500_SBAG_BASE		0xa0390000
@@ -66,13 +67,6 @@
 #define U8500_GPIO2_BASE	(U8500_PER2_BASE + 0xE000)
 #define U8500_GPIO3_BASE	(U8500_PER5_BASE + 0x1E000)
 
-/* per7 base addresses */
-#define U8500_CR_BASE_ED	(U8500_PER7_BASE_ED + 0x8000)
-#define U8500_MTU0_BASE_ED	(U8500_PER7_BASE_ED + 0xa000)
-#define U8500_MTU1_BASE_ED	(U8500_PER7_BASE_ED + 0xb000)
-#define U8500_TZPC0_BASE_ED	(U8500_PER7_BASE_ED + 0xc000)
-#define U8500_CLKRST7_BASE_ED	(U8500_PER7_BASE_ED + 0xf000)
-
 #define U8500_UART0_BASE	(U8500_PER1_BASE + 0x0000)
 #define U8500_UART1_BASE	(U8500_PER1_BASE + 0x1000)
 
@@ -102,12 +96,10 @@
 #define U8500_SCR_BASE		(U8500_PER4_BASE + 0x05000)
 #define U8500_DMC_BASE		(U8500_PER4_BASE + 0x06000)
 #define U8500_PRCMU_BASE	(U8500_PER4_BASE + 0x07000)
-#define U8500_PRCMU_TIMER_3_BASE (U8500_PER4_BASE + 0x07338)
-#define U8500_PRCMU_TIMER_4_BASE (U8500_PER4_BASE + 0x07450)
-#define U8500_PRCMU_TCDM_BASE_V1 (U8500_PER4_BASE + 0x0f000)
 #define U8500_PRCMU_TCDM_BASE	(U8500_PER4_BASE + 0x68000)
 #define U8500_PRCMU_TCPM_BASE   (U8500_PER4_BASE + 0x60000)
-
+#define U8500_PRCMU_TIMER_3_BASE (U8500_PER4_BASE + 0x07338)
+#define U8500_PRCMU_TIMER_4_BASE (U8500_PER4_BASE + 0x07450)
 
 /* per3 base addresses */
 #define U8500_FSMC_BASE		(U8500_PER3_BASE + 0x0000)
diff --git a/arch/arm/mach-ux500/include/mach/devices.h b/arch/arm/mach-ux500/include/mach/devices.h
index 020b6369a30a..5f6cb71fc62d 100644
--- a/arch/arm/mach-ux500/include/mach/devices.h
+++ b/arch/arm/mach-ux500/include/mach/devices.h
@@ -18,6 +18,4 @@ extern struct amba_device ux500_pl031_device;
 extern struct platform_device u8500_dma40_device;
 extern struct platform_device ux500_ske_keypad_device;
 
-void dma40_u8500ed_fixup(void);
-
 #endif
diff --git a/arch/arm/mach-ux500/include/mach/hardware.h b/arch/arm/mach-ux500/include/mach/hardware.h
index 470ac52663d6..b6ba26a1367d 100644
--- a/arch/arm/mach-ux500/include/mach/hardware.h
+++ b/arch/arm/mach-ux500/include/mach/hardware.h
@@ -10,20 +10,21 @@
 #ifndef __MACH_HARDWARE_H
 #define __MACH_HARDWARE_H
 
-/* macros to get at IO space when running virtually
+/*
+ * Macros to get at IO space when running virtually
  * We dont map all the peripherals, let ioremap do
  * this for us. We map only very basic peripherals here.
  */
 #define U8500_IO_VIRTUAL	0xf0000000
 #define U8500_IO_PHYSICAL	0xa0000000
 
-/* this macro is used in assembly, so no cast */
+/* This macro is used in assembly, so no cast */
 #define IO_ADDRESS(x)           \
 	(((x) & 0x0fffffff) + (((x) >> 4) & 0x0f000000) + U8500_IO_VIRTUAL)
 
 /* typesafe io address */
 #define __io_address(n)		__io(IO_ADDRESS(n))
-/* used by some plat-nomadik code */
+/* Used by some plat-nomadik code */
 #define io_p2v(n)		__io_address(n)
 
 #include <mach/db8500-regs.h>
@@ -36,6 +37,5 @@ extern void __iomem *_PRCMU_BASE;
 
 #define ARRAY_AND_SIZE(x)	(x), ARRAY_SIZE(x)
 
-#endif
-
+#endif				/* __ASSEMBLY__ */
 #endif				/* __MACH_HARDWARE_H */
diff --git a/arch/arm/mach-ux500/include/mach/id.h b/arch/arm/mach-ux500/include/mach/id.h
index 02b541a37ee5..833d6a6edc9b 100644
--- a/arch/arm/mach-ux500/include/mach/id.h
+++ b/arch/arm/mach-ux500/include/mach/id.h
@@ -47,6 +47,30 @@ static inline bool __attribute_const__ cpu_is_u5500(void)
 }
 
 /*
+ * 5500 revisions
+ */
+
+static inline bool __attribute_const__ cpu_is_u5500v1(void)
+{
+	return cpu_is_u5500() && (dbx500_revision() & 0xf0) == 0xA0;
+}
+
+static inline bool __attribute_const__ cpu_is_u5500v2(void)
+{
+	return (dbx500_id.revision & 0xf0) == 0xB0;
+}
+
+static inline bool __attribute_const__ cpu_is_u5500v20(void)
+{
+	return cpu_is_u5500() && ((dbx500_revision() & 0xf0) == 0xB0);
+}
+
+static inline bool __attribute_const__ cpu_is_u5500v21(void)
+{
+	return cpu_is_u5500() && (dbx500_revision() == 0xB1);
+}
+
+/*
  * 8500 revisions
  */
 
diff --git a/arch/arm/mm/iomap.c b/arch/arm/mm/iomap.c
index 430df1a5978d..e62956e12030 100644
--- a/arch/arm/mm/iomap.c
+++ b/arch/arm/mm/iomap.c
@@ -35,27 +35,6 @@ EXPORT_SYMBOL(pcibios_min_mem);
 unsigned int pci_flags = PCI_REASSIGN_ALL_RSRC;
 EXPORT_SYMBOL(pci_flags);
 
-void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
-{
-	resource_size_t start = pci_resource_start(dev, bar);
-	resource_size_t len   = pci_resource_len(dev, bar);
-	unsigned long flags = pci_resource_flags(dev, bar);
-
-	if (!len || !start)
-		return NULL;
-	if (maxlen && len > maxlen)
-		len = maxlen;
-	if (flags & IORESOURCE_IO)
-		return ioport_map(start, len);
-	if (flags & IORESOURCE_MEM) {
-		if (flags & IORESOURCE_CACHEABLE)
-			return ioremap(start, len);
-		return ioremap_nocache(start, len);
-	}
-	return NULL;
-}
-EXPORT_SYMBOL(pci_iomap);
-
 void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
 {
 	if ((unsigned long)addr >= VMALLOC_START &&
diff --git a/arch/arm/plat-mxc/include/mach/common.h b/arch/arm/plat-mxc/include/mach/common.h
index 83cca9bcfc97..1bf0df81bdc6 100644
--- a/arch/arm/plat-mxc/include/mach/common.h
+++ b/arch/arm/plat-mxc/include/mach/common.h
@@ -131,6 +131,12 @@ extern void imx53_evk_common_init(void);
 extern void imx53_qsb_common_init(void);
 extern void imx53_smd_common_init(void);
 extern int imx6q_set_lpm(enum mxc_cpu_pwr_mode mode);
-extern void imx6q_pm_init(void);
 extern void imx6q_clock_map_io(void);
+
+#ifdef CONFIG_PM
+extern void imx6q_pm_init(void);
+#else
+static inline void imx6q_pm_init(void) {}
+#endif
+
 #endif
diff --git a/arch/arm/plat-mxc/include/mach/iomux-mx25.h b/arch/arm/plat-mxc/include/mach/iomux-mx25.h
index bf64e1e594ed..f0726d48df22 100644
--- a/arch/arm/plat-mxc/include/mach/iomux-mx25.h
+++ b/arch/arm/plat-mxc/include/mach/iomux-mx25.h
@@ -265,16 +265,20 @@
 #define MX25_PAD_CSI_D2__CSI_D2		IOMUX_PAD(0x318, 0x120, 0x10, 0, 0, NO_PAD_CTRL)
 #define MX25_PAD_CSI_D2__UART5_RXD_MUX	IOMUX_PAD(0x318, 0x120, 0x11, 0x578, 1, NO_PAD_CTRL)
 #define MX25_PAD_CSI_D2__GPIO_1_27	IOMUX_PAD(0x318, 0x120, 0x15, 0, 0, NO_PAD_CTRL)
+#define MX25_PAD_CSI_D2__CSPI3_MOSI	IOMUX_PAD(0x318, 0x120, 0x17, 0, 0, NO_PAD_CTRL)
 
 #define MX25_PAD_CSI_D3__CSI_D3		IOMUX_PAD(0x31c, 0x124, 0x10, 0, 0, NO_PAD_CTRL)
 #define MX25_PAD_CSI_D3__GPIO_1_28	IOMUX_PAD(0x31c, 0x124, 0x15, 0, 0, NO_PAD_CTRL)
+#define MX25_PAD_CSI_D3__CSPI3_MISO	IOMUX_PAD(0x31c, 0x124, 0x17, 0x4b4, 1, NO_PAD_CTRL)
 
 #define MX25_PAD_CSI_D4__CSI_D4		IOMUX_PAD(0x320, 0x128, 0x10, 0, 0, NO_PAD_CTRL)
 #define MX25_PAD_CSI_D4__UART5_RTS	IOMUX_PAD(0x320, 0x128, 0x11, 0x574, 1, NO_PAD_CTRL)
 #define MX25_PAD_CSI_D4__GPIO_1_29	IOMUX_PAD(0x320, 0x128, 0x15, 0, 0, NO_PAD_CTRL)
+#define MX25_PAD_CSI_D4__CSPI3_SCLK	IOMUX_PAD(0x320, 0x128, 0x17, 0, 0, NO_PAD_CTRL)
 
 #define MX25_PAD_CSI_D5__CSI_D5		IOMUX_PAD(0x324, 0x12c, 0x10, 0, 0, NO_PAD_CTRL)
 #define MX25_PAD_CSI_D5__GPIO_1_30	IOMUX_PAD(0x324, 0x12c, 0x15, 0, 0, NO_PAD_CTRL)
+#define MX25_PAD_CSI_D5__CSPI3_RDY	IOMUX_PAD(0x324, 0x12c, 0x17, 0, 0, NO_PAD_CTRL)
 
 #define MX25_PAD_CSI_D6__CSI_D6		IOMUX_PAD(0x328, 0x130, 0x10, 0, 0, NO_PAD_CTRL)
 #define MX25_PAD_CSI_D6__GPIO_1_31	IOMUX_PAD(0x328, 0x130, 0x15, 0, 0, NO_PAD_CTRL)
diff --git a/arch/arm/plat-mxc/include/mach/mxc.h b/arch/arm/plat-mxc/include/mach/mxc.h
index a4d36d601d55..d78298366a91 100644
--- a/arch/arm/plat-mxc/include/mach/mxc.h
+++ b/arch/arm/plat-mxc/include/mach/mxc.h
@@ -168,7 +168,7 @@ struct cpu_op {
 	u32 cpu_rate;
 };
 
-int tzic_enable_wake(int is_idle);
+int tzic_enable_wake(void);
 
 extern struct cpu_op *(*get_cpu_op)(int *op);
 #endif
diff --git a/arch/arm/plat-mxc/tzic.c b/arch/arm/plat-mxc/tzic.c
index a3c164c7ba82..98308ec1f321 100644
--- a/arch/arm/plat-mxc/tzic.c
+++ b/arch/arm/plat-mxc/tzic.c
@@ -73,7 +73,28 @@ static int tzic_set_irq_fiq(unsigned int irq, unsigned int type)
 #define tzic_set_irq_fiq NULL
 #endif
 
-static unsigned int *wakeup_intr[4];
+#ifdef CONFIG_PM
+static void tzic_irq_suspend(struct irq_data *d)
+{
+	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
+	int idx = gc->irq_base >> 5;
+
+	__raw_writel(gc->wake_active, tzic_base + TZIC_WAKEUP0(idx));
+}
+
+static void tzic_irq_resume(struct irq_data *d)
+{
+	struct irq_chip_generic *gc = irq_data_get_irq_chip_data(d);
+	int idx = gc->irq_base >> 5;
+
+	__raw_writel(__raw_readl(tzic_base + TZIC_ENSET0(idx)),
+		     tzic_base + TZIC_WAKEUP0(idx));
+}
+
+#else
+#define tzic_irq_suspend NULL
+#define tzic_irq_resume NULL
+#endif
 
 static struct mxc_extra_irq tzic_extra_irq = {
 #ifdef CONFIG_FIQ
@@ -91,12 +112,13 @@ static __init void tzic_init_gc(unsigned int irq_start)
 				    handle_level_irq);
 	gc->private = &tzic_extra_irq;
 	gc->wake_enabled = IRQ_MSK(32);
-	wakeup_intr[idx] = &gc->wake_active;
 
 	ct = gc->chip_types;
 	ct->chip.irq_mask = irq_gc_mask_disable_reg;
 	ct->chip.irq_unmask = irq_gc_unmask_enable_reg;
 	ct->chip.irq_set_wake = irq_gc_set_wake;
+	ct->chip.irq_suspend = tzic_irq_suspend;
+	ct->chip.irq_resume = tzic_irq_resume;
 	ct->regs.disable = TZIC_ENCLEAR0(idx);
 	ct->regs.enable = TZIC_ENSET0(idx);
 
@@ -167,23 +189,19 @@ void __init tzic_init_irq(void __iomem *irqbase)
 /**
  * tzic_enable_wake() - enable wakeup interrupt
  *
- * @param is_idle		1 if called in idle loop (ENSET0 register);
- *				0 to be used when called from low power entry
  * @return			0 if successful; non-zero otherwise
  */
-int tzic_enable_wake(int is_idle)
+int tzic_enable_wake(void)
 {
-	unsigned int i, v;
+	unsigned int i;
 
 	__raw_writel(1, tzic_base + TZIC_DSMINT);
 	if (unlikely(__raw_readl(tzic_base + TZIC_DSMINT) == 0))
 		return -EAGAIN;
 
-	for (i = 0; i < 4; i++) {
-		v = is_idle ? __raw_readl(tzic_base + TZIC_ENSET0(i)) :
-			*wakeup_intr[i];
-		__raw_writel(v, tzic_base + TZIC_WAKEUP0(i));
-	}
+	for (i = 0; i < 4; i++)
+		__raw_writel(__raw_readl(tzic_base + TZIC_ENSET0(i)),
+			     tzic_base + TZIC_WAKEUP0(i));
 
 	return 0;
 }
diff --git a/arch/arm/plat-omap/Makefile b/arch/arm/plat-omap/Makefile
index 3df04d944e4d..9a584614e7e6 100644
--- a/arch/arm/plat-omap/Makefile
+++ b/arch/arm/plat-omap/Makefile
@@ -19,7 +19,6 @@ obj-$(CONFIG_ARCH_OMAP4) += omap_device.o
 
 obj-$(CONFIG_OMAP_MCBSP) += mcbsp.o
 
-obj-$(CONFIG_CPU_FREQ) += cpu-omap.o
 obj-$(CONFIG_OMAP_DM_TIMER) += dmtimer.o
 obj-$(CONFIG_OMAP_DEBUG_DEVICES) += debug-devices.o
 obj-$(CONFIG_OMAP_DEBUG_LEDS) += debug-leds.o
diff --git a/arch/arm/plat-omap/common.c b/arch/arm/plat-omap/common.c
index 2ee6341fffdb..06383b51e655 100644
--- a/arch/arm/plat-omap/common.c
+++ b/arch/arm/plat-omap/common.c
@@ -22,6 +22,8 @@
 #include <plat/vram.h>
 #include <plat/dsp.h>
 
+#include <plat/omap-secure.h>
+
 
 #define NO_LENGTH_CHECK 0xffffffff
 
@@ -66,6 +68,7 @@ void __init omap_reserve(void)
 	omapfb_reserve_sdram_memblock();
 	omap_vram_reserve_sdram_memblock();
 	omap_dsp_reserve_sdram_memblock();
+	omap_secure_ram_reserve_memblock();
 }
 
 void __init omap_init_consistent_dma_size(void)
diff --git a/arch/arm/plat-omap/dma.c b/arch/arm/plat-omap/dma.c
index c22217c2ee5f..002fb4d96bbc 100644
--- a/arch/arm/plat-omap/dma.c
+++ b/arch/arm/plat-omap/dma.c
@@ -1034,6 +1034,18 @@ dma_addr_t omap_get_dma_src_pos(int lch)
 	if (IS_DMA_ERRATA(DMA_ERRATA_3_3) && offset == 0)
 		offset = p->dma_read(CSAC, lch);
 
+	if (!cpu_is_omap15xx()) {
+		/*
+		 * CDAC == 0 indicates that the DMA transfer on the channel has
+		 * not been started (no data has been transferred so far).
+		 * Return the programmed source start address in this case.
+		 */
+		if (likely(p->dma_read(CDAC, lch)))
+			offset = p->dma_read(CSAC, lch);
+		else
+			offset = p->dma_read(CSSA, lch);
+	}
+
 	if (cpu_class_is_omap1())
 		offset |= (p->dma_read(CSSA, lch) & 0xFFFF0000);
 
@@ -1062,8 +1074,16 @@ dma_addr_t omap_get_dma_dst_pos(int lch)
 	 * omap 3.2/3.3 erratum: sometimes 0 is returned if CSAC/CDAC is
 	 * read before the DMA controller finished disabling the channel.
 	 */
-	if (!cpu_is_omap15xx() && offset == 0)
+	if (!cpu_is_omap15xx() && offset == 0) {
 		offset = p->dma_read(CDAC, lch);
+		/*
+		 * CDAC == 0 indicates that the DMA transfer on the channel has
+		 * not been started (no data has been transferred so far).
+		 * Return the programmed destination start address in this case.
+		 */
+		if (unlikely(!offset))
+			offset = p->dma_read(CDSA, lch);
+	}
 
 	if (cpu_class_is_omap1())
 		offset |= (p->dma_read(CDSA, lch) & 0xFFFF0000);
diff --git a/arch/arm/plat-omap/include/plat/am33xx.h b/arch/arm/plat-omap/include/plat/am33xx.h
new file mode 100644
index 000000000000..06c19bb7bca6
--- /dev/null
+++ b/arch/arm/plat-omap/include/plat/am33xx.h
@@ -0,0 +1,25 @@
+/*
+ * This file contains the address info for various AM33XX modules.
+ *
+ * Copyright (C) 2011 Texas Instruments, Inc. - http://www.ti.com/
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __ASM_ARCH_AM33XX_H
+#define __ASM_ARCH_AM33XX_H
+
+#define L4_SLOW_AM33XX_BASE	0x48000000
+
+#define AM33XX_SCM_BASE		0x44E10000
+#define AM33XX_CTRL_BASE	AM33XX_SCM_BASE
+#define AM33XX_PRCM_BASE	0x44E00000
+
+#endif /* __ASM_ARCH_AM33XX_H */
diff --git a/arch/arm/plat-omap/include/plat/clkdev_omap.h b/arch/arm/plat-omap/include/plat/clkdev_omap.h
index 387a9638991b..b299b8d201c8 100644
--- a/arch/arm/plat-omap/include/plat/clkdev_omap.h
+++ b/arch/arm/plat-omap/include/plat/clkdev_omap.h
@@ -40,6 +40,7 @@ struct omap_clk {
 #define CK_443X		(1 << 11)
 #define CK_TI816X	(1 << 12)
 #define CK_446X		(1 << 13)
+#define CK_1710		(1 << 15)	/* 1710 extra for rate selection */
 
 
 #define CK_34XX		(CK_3430ES1 | CK_3430ES2PLUS)
diff --git a/arch/arm/plat-omap/include/plat/clock.h b/arch/arm/plat-omap/include/plat/clock.h
index eb73ab40e955..240a7b9fd946 100644
--- a/arch/arm/plat-omap/include/plat/clock.h
+++ b/arch/arm/plat-omap/include/plat/clock.h
@@ -59,6 +59,8 @@ struct clkops {
 #define RATE_IN_4430		(1 << 5)
 #define RATE_IN_TI816X		(1 << 6)
 #define RATE_IN_4460		(1 << 7)
+#define RATE_IN_AM33XX		(1 << 8)
+#define RATE_IN_TI814X		(1 << 9)
 
 #define RATE_IN_24XX		(RATE_IN_242X | RATE_IN_243X)
 #define RATE_IN_34XX		(RATE_IN_3430ES1 | RATE_IN_3430ES2PLUS)
@@ -84,7 +86,7 @@ struct clkops {
 struct clksel_rate {
 	u32			val;
 	u8			div;
-	u8			flags;
+	u16			flags;
 };
 
 /**
diff --git a/arch/arm/plat-omap/include/plat/cpu.h b/arch/arm/plat-omap/include/plat/cpu.h
index 408a12f79205..6b51086fce18 100644
--- a/arch/arm/plat-omap/include/plat/cpu.h
+++ b/arch/arm/plat-omap/include/plat/cpu.h
@@ -69,6 +69,7 @@ unsigned int omap_rev(void);
  * cpu_is_omap343x():	True for OMAP3430
  * cpu_is_omap443x():	True for OMAP4430
  * cpu_is_omap446x():	True for OMAP4460
+ * cpu_is_omap447x():	True for OMAP4470
  */
 #define GET_OMAP_CLASS	(omap_rev() & 0xff)
 
@@ -78,6 +79,22 @@ static inline int is_omap ##class (void)		\
 	return (GET_OMAP_CLASS == (id)) ? 1 : 0;	\
 }
 
+#define GET_AM_CLASS	((omap_rev() >> 24) & 0xff)
+
+#define IS_AM_CLASS(class, id)				\
+static inline int is_am ##class (void)			\
+{							\
+	return (GET_AM_CLASS == (id)) ? 1 : 0;		\
+}
+
+#define GET_TI_CLASS	((omap_rev() >> 24) & 0xff)
+
+#define IS_TI_CLASS(class, id)			\
+static inline int is_ti ##class (void)		\
+{							\
+	return (GET_TI_CLASS == (id)) ? 1 : 0;	\
+}
+
 #define GET_OMAP_SUBCLASS	((omap_rev() >> 20) & 0x0fff)
 
 #define IS_OMAP_SUBCLASS(subclass, id)			\
@@ -92,12 +109,21 @@ static inline int is_ti ##subclass (void)		\
 	return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0;	\
 }
 
+#define IS_AM_SUBCLASS(subclass, id)			\
+static inline int is_am ##subclass (void)		\
+{							\
+	return (GET_OMAP_SUBCLASS == (id)) ? 1 : 0;	\
+}
+
 IS_OMAP_CLASS(7xx, 0x07)
 IS_OMAP_CLASS(15xx, 0x15)
 IS_OMAP_CLASS(16xx, 0x16)
 IS_OMAP_CLASS(24xx, 0x24)
 IS_OMAP_CLASS(34xx, 0x34)
 IS_OMAP_CLASS(44xx, 0x44)
+IS_AM_CLASS(33xx, 0x33)
+
+IS_TI_CLASS(81xx, 0x81)
 
 IS_OMAP_SUBCLASS(242x, 0x242)
 IS_OMAP_SUBCLASS(243x, 0x243)
@@ -105,8 +131,11 @@ IS_OMAP_SUBCLASS(343x, 0x343)
 IS_OMAP_SUBCLASS(363x, 0x363)
 IS_OMAP_SUBCLASS(443x, 0x443)
 IS_OMAP_SUBCLASS(446x, 0x446)
+IS_OMAP_SUBCLASS(447x, 0x447)
 
 IS_TI_SUBCLASS(816x, 0x816)
+IS_TI_SUBCLASS(814x, 0x814)
+IS_AM_SUBCLASS(335x, 0x335)
 
 #define cpu_is_omap7xx()		0
 #define cpu_is_omap15xx()		0
@@ -116,10 +145,15 @@ IS_TI_SUBCLASS(816x, 0x816)
 #define cpu_is_omap243x()		0
 #define cpu_is_omap34xx()		0
 #define cpu_is_omap343x()		0
+#define cpu_is_ti81xx()			0
 #define cpu_is_ti816x()			0
+#define cpu_is_ti814x()			0
+#define cpu_is_am33xx()			0
+#define cpu_is_am335x()			0
 #define cpu_is_omap44xx()		0
 #define cpu_is_omap443x()		0
 #define cpu_is_omap446x()		0
+#define cpu_is_omap447x()		0
 
 #if defined(MULTI_OMAP1)
 # if defined(CONFIG_ARCH_OMAP730)
@@ -322,7 +356,11 @@ IS_OMAP_TYPE(3517, 0x3517)
 # undef cpu_is_omap3530
 # undef cpu_is_omap3505
 # undef cpu_is_omap3517
+# undef cpu_is_ti81xx
 # undef cpu_is_ti816x
+# undef cpu_is_ti814x
+# undef cpu_is_am33xx
+# undef cpu_is_am335x
 # define cpu_is_omap3430()		is_omap3430()
 # define cpu_is_omap3503()		(cpu_is_omap3430() &&		\
 						(!omap3_has_iva()) &&	\
@@ -339,16 +377,22 @@ IS_OMAP_TYPE(3517, 0x3517)
 						!omap3_has_sgx())
 # undef cpu_is_omap3630
 # define cpu_is_omap3630()		is_omap363x()
+# define cpu_is_ti81xx()		is_ti81xx()
 # define cpu_is_ti816x()		is_ti816x()
+# define cpu_is_ti814x()		is_ti814x()
+# define cpu_is_am33xx()		is_am33xx()
+# define cpu_is_am335x()		is_am335x()
 #endif
 
 # if defined(CONFIG_ARCH_OMAP4)
 # undef cpu_is_omap44xx
 # undef cpu_is_omap443x
 # undef cpu_is_omap446x
+# undef cpu_is_omap447x
 # define cpu_is_omap44xx()		is_omap44xx()
 # define cpu_is_omap443x()		is_omap443x()
 # define cpu_is_omap446x()		is_omap446x()
+# define cpu_is_omap447x()		is_omap447x()
 # endif
 
 /* Macros to detect if we have OMAP1 or OMAP2 */
@@ -386,15 +430,27 @@ IS_OMAP_TYPE(3517, 0x3517)
 #define TI8168_REV_ES1_0	TI816X_CLASS
 #define TI8168_REV_ES1_1	(TI816X_CLASS | (0x1 << 8))
 
+#define TI814X_CLASS		0x81400034
+#define TI8148_REV_ES1_0	TI814X_CLASS
+#define TI8148_REV_ES2_0	(TI814X_CLASS | (0x1 << 8))
+#define TI8148_REV_ES2_1	(TI814X_CLASS | (0x2 << 8))
+
+#define AM335X_CLASS		0x33500034
+#define AM335X_REV_ES1_0	AM335X_CLASS
+
 #define OMAP443X_CLASS		0x44300044
 #define OMAP4430_REV_ES1_0	(OMAP443X_CLASS | (0x10 << 8))
 #define OMAP4430_REV_ES2_0	(OMAP443X_CLASS | (0x20 << 8))
 #define OMAP4430_REV_ES2_1	(OMAP443X_CLASS | (0x21 << 8))
 #define OMAP4430_REV_ES2_2	(OMAP443X_CLASS | (0x22 << 8))
+#define OMAP4430_REV_ES2_3	(OMAP443X_CLASS | (0x23 << 8))
 
 #define OMAP446X_CLASS		0x44600044
 #define OMAP4460_REV_ES1_0	(OMAP446X_CLASS | (0x10 << 8))
 
+#define OMAP447X_CLASS		0x44700044
+#define OMAP4470_REV_ES1_0	(OMAP447X_CLASS | (0x10 << 8))
+
 void omap2_check_revision(void);
 
 /*
diff --git a/arch/arm/plat-omap/include/plat/hardware.h b/arch/arm/plat-omap/include/plat/hardware.h
index e87efe1499b8..e897978371c2 100644
--- a/arch/arm/plat-omap/include/plat/hardware.h
+++ b/arch/arm/plat-omap/include/plat/hardware.h
@@ -286,6 +286,7 @@
 #include <plat/omap24xx.h>
 #include <plat/omap34xx.h>
 #include <plat/omap44xx.h>
-#include <plat/ti816x.h>
+#include <plat/ti81xx.h>
+#include <plat/am33xx.h>
 
 #endif	/* __ASM_ARCH_OMAP_HARDWARE_H */
diff --git a/arch/arm/plat-omap/include/plat/io.h b/arch/arm/plat-omap/include/plat/io.h
index 1234944a4da0..0696bae1818b 100644
--- a/arch/arm/plat-omap/include/plat/io.h
+++ b/arch/arm/plat-omap/include/plat/io.h
@@ -73,6 +73,9 @@
 #define OMAP4_L3_IO_OFFSET	0xb4000000
 #define OMAP4_L3_IO_ADDRESS(pa)	IOMEM((pa) + OMAP4_L3_IO_OFFSET) /* L3 */
 
+#define AM33XX_L4_WK_IO_OFFSET	0xb5000000
+#define AM33XX_L4_WK_IO_ADDRESS(pa)	IOMEM((pa) + AM33XX_L4_WK_IO_OFFSET)
+
 #define OMAP4_L3_PER_IO_OFFSET	0xb1100000
 #define OMAP4_L3_PER_IO_ADDRESS(pa)	IOMEM((pa) + OMAP4_L3_PER_IO_OFFSET)
 
@@ -154,6 +157,15 @@
 #define L4_34XX_SIZE		SZ_4M   /* 1MB of 128MB used, want 1MB sect */
 
 /*
+ * ----------------------------------------------------------------------------
+ * AM33XX specific IO mapping
+ * ----------------------------------------------------------------------------
+ */
+#define L4_WK_AM33XX_PHYS	L4_WK_AM33XX_BASE
+#define L4_WK_AM33XX_VIRT	(L4_WK_AM33XX_PHYS + AM33XX_L4_WK_IO_OFFSET)
+#define L4_WK_AM33XX_SIZE	SZ_4M   /* 1MB of 128MB used, want 1MB sect */
+
+/*
  * Need to look at the Size 4M for L4.
  * VPOM3430 was not working for Int controller
  */
diff --git a/arch/arm/plat-omap/include/plat/iommu.h b/arch/arm/plat-omap/include/plat/iommu.h
index a1d79ee19250..88be3e628b33 100644
--- a/arch/arm/plat-omap/include/plat/iommu.h
+++ b/arch/arm/plat-omap/include/plat/iommu.h
@@ -111,6 +111,32 @@ struct iommu_platform_data {
 	u32 da_end;
 };
 
+/**
+ * struct iommu_arch_data - omap iommu private data
+ * @name: name of the iommu device
+ * @iommu_dev: handle of the iommu device
+ *
+ * This is an omap iommu private data object, which binds an iommu user
+ * to its iommu device. This object should be placed at the iommu user's
+ * dev_archdata so generic IOMMU API can be used without having to
+ * utilize omap-specific plumbing anymore.
+ */
+struct omap_iommu_arch_data {
+	const char *name;
+	struct omap_iommu *iommu_dev;
+};
+
+/**
+ * dev_to_omap_iommu() - retrieves an omap iommu object from a user device
+ * @dev: iommu client device
+ */
+static inline struct omap_iommu *dev_to_omap_iommu(struct device *dev)
+{
+	struct omap_iommu_arch_data *arch_data = dev->archdata.iommu;
+
+	return arch_data->iommu_dev;
+}
+
 /* IOMMU errors */
 #define OMAP_IOMMU_ERR_TLB_MISS		(1 << 0)
 #define OMAP_IOMMU_ERR_TRANS_FAULT	(1 << 1)
@@ -163,8 +189,8 @@ extern int omap_iommu_set_isr(const char *name,
 				    void *priv),
 			 void *isr_priv);
 
-extern void omap_iommu_save_ctx(struct omap_iommu *obj);
-extern void omap_iommu_restore_ctx(struct omap_iommu *obj);
+extern void omap_iommu_save_ctx(struct device *dev);
+extern void omap_iommu_restore_ctx(struct device *dev);
 
 extern int omap_install_iommu_arch(const struct iommu_functions *ops);
 extern void omap_uninstall_iommu_arch(const struct iommu_functions *ops);
@@ -176,6 +202,5 @@ extern ssize_t
 omap_iommu_dump_ctx(struct omap_iommu *obj, char *buf, ssize_t len);
 extern size_t
 omap_dump_tlb_entries(struct omap_iommu *obj, char *buf, ssize_t len);
-struct device *omap_find_iommu_device(const char *name);
 
 #endif /* __MACH_IOMMU_H */
diff --git a/arch/arm/plat-omap/include/plat/iovmm.h b/arch/arm/plat-omap/include/plat/iovmm.h
index 6af1a91c0f36..498e57cda6cd 100644
--- a/arch/arm/plat-omap/include/plat/iovmm.h
+++ b/arch/arm/plat-omap/include/plat/iovmm.h
@@ -72,18 +72,18 @@ struct iovm_struct {
 #define IOVMF_DA_FIXED		(1 << (4 + IOVMF_SW_SHIFT))
 
 
-extern struct iovm_struct *omap_find_iovm_area(struct omap_iommu *obj, u32 da);
+extern struct iovm_struct *omap_find_iovm_area(struct device *dev, u32 da);
 extern u32
-omap_iommu_vmap(struct iommu_domain *domain, struct omap_iommu *obj, u32 da,
+omap_iommu_vmap(struct iommu_domain *domain, struct device *dev, u32 da,
 			const struct sg_table *sgt, u32 flags);
 extern struct sg_table *omap_iommu_vunmap(struct iommu_domain *domain,
-				struct omap_iommu *obj, u32 da);
+				struct device *dev, u32 da);
 extern u32
-omap_iommu_vmalloc(struct iommu_domain *domain, struct omap_iommu *obj,
+omap_iommu_vmalloc(struct iommu_domain *domain, struct device *dev,
 				u32 da, size_t bytes, u32 flags);
 extern void
-omap_iommu_vfree(struct iommu_domain *domain, struct omap_iommu *obj,
+omap_iommu_vfree(struct iommu_domain *domain, struct device *dev,
 				const u32 da);
-extern void *omap_da_to_va(struct omap_iommu *obj, u32 da);
+extern void *omap_da_to_va(struct device *dev, u32 da);
 
 #endif /* __IOMMU_MMAP_H */
diff --git a/arch/arm/plat-omap/include/plat/irqs.h b/arch/arm/plat-omap/include/plat/irqs.h
index ebda7382c65b..2efd6454bce0 100644
--- a/arch/arm/plat-omap/include/plat/irqs.h
+++ b/arch/arm/plat-omap/include/plat/irqs.h
@@ -357,7 +357,7 @@
 #define INT_35XX_EMAC_C0_TX_PULSE_IRQ	69
 #define INT_35XX_EMAC_C0_MISC_PULSE_IRQ	70
 #define INT_35XX_USBOTG_IRQ		71
-#define INT_35XX_UART4			84
+#define INT_35XX_UART4_IRQ		84
 #define INT_35XX_CCDC_VD0_IRQ		88
 #define INT_35XX_CCDC_VD1_IRQ		92
 #define INT_35XX_CCDC_VD2_IRQ		93
diff --git a/arch/arm/plat-omap/include/plat/mmc.h b/arch/arm/plat-omap/include/plat/mmc.h
index 94cf70afb236..f75946c3293d 100644
--- a/arch/arm/plat-omap/include/plat/mmc.h
+++ b/arch/arm/plat-omap/include/plat/mmc.h
@@ -96,6 +96,7 @@ struct omap_mmc_platform_data {
 		 */
 		u8  wires;	/* Used for the MMC driver on omap1 and 2420 */
 		u32 caps;	/* Used for the MMC driver on 2430 and later */
+		u32 pm_caps;	/* PM capabilities of the mmc */
 
 		/*
 		 * nomux means "standard" muxing is wrong on this board, and
diff --git a/arch/arm/plat-omap/include/plat/omap-secure.h b/arch/arm/plat-omap/include/plat/omap-secure.h
new file mode 100644
index 000000000000..64f9d1c7f1bb
--- /dev/null
+++ b/arch/arm/plat-omap/include/plat/omap-secure.h
@@ -0,0 +1,13 @@
+#ifndef __OMAP_SECURE_H__
+#define __OMAP_SECURE_H__
+
+#include <linux/types.h>
+
+#ifdef CONFIG_ARCH_OMAP2PLUS
+extern int omap_secure_ram_reserve_memblock(void);
+#else
+static inline void omap_secure_ram_reserve_memblock(void)
+{ }
+#endif
+
+#endif /* __OMAP_SECURE_H__ */
diff --git a/arch/arm/plat-omap/include/plat/omap-serial.h b/arch/arm/plat-omap/include/plat/omap-serial.h
index 2682043f5a5b..9ff444469f3d 100644
--- a/arch/arm/plat-omap/include/plat/omap-serial.h
+++ b/arch/arm/plat-omap/include/plat/omap-serial.h
@@ -19,6 +19,7 @@
 
 #include <linux/serial_core.h>
 #include <linux/platform_device.h>
+#include <linux/pm_qos.h>
 
 #include <plat/mux.h>
 
@@ -33,6 +34,8 @@
 
 #define OMAP_MODE13X_SPEED	230400
 
+#define OMAP_UART_SCR_TX_EMPTY	0x08
+
 /* WER = 0x7F
  * Enable module level wakeup in WER reg
  */
@@ -51,18 +54,27 @@
 
 #define OMAP_UART_DMA_CH_FREE	-1
 
-#define RX_TIMEOUT		(3 * HZ)
 #define OMAP_MAX_HSUART_PORTS	4
 
 #define MSR_SAVE_FLAGS		UART_MSR_ANY_DELTA
 
+#define UART_ERRATA_i202_MDR1_ACCESS	BIT(0)
+#define UART_ERRATA_i291_DMA_FORCEIDLE	BIT(1)
+
 struct omap_uart_port_info {
 	bool			dma_enabled;	/* To specify DMA Mode */
 	unsigned int		uartclk;	/* UART clock rate */
-	void __iomem		*membase;	/* ioremap cookie or NULL */
-	resource_size_t		mapbase;	/* resource base */
-	unsigned long		irqflags;	/* request_irq flags */
 	upf_t			flags;		/* UPF_* flags */
+	u32			errata;
+	unsigned int		dma_rx_buf_size;
+	unsigned int		dma_rx_timeout;
+	unsigned int		autosuspend_timeout;
+	unsigned int		dma_rx_poll_rate;
+
+	int (*get_context_loss_count)(struct device *);
+	void (*set_forceidle)(struct platform_device *);
+	void (*set_noidle)(struct platform_device *);
+	void (*enable_wakeup)(struct platform_device *, bool);
 };
 
 struct uart_omap_dma {
@@ -86,8 +98,9 @@ struct uart_omap_dma {
 	spinlock_t		rx_lock;
 	/* timer to poll activity on rx dma */
 	struct timer_list	rx_timer;
-	int			rx_buf_size;
-	int			rx_timeout;
+	unsigned int		rx_buf_size;
+	unsigned int		rx_poll_rate;
+	unsigned int		rx_timeout;
 };
 
 struct uart_omap_port {
@@ -100,6 +113,10 @@ struct uart_omap_port {
 	unsigned char		mcr;
 	unsigned char		fcr;
 	unsigned char		efr;
+	unsigned char		dll;
+	unsigned char		dlh;
+	unsigned char		mdr1;
+	unsigned char		scr;
 
 	int			use_dma;
 	/*
@@ -111,6 +128,14 @@ struct uart_omap_port {
 	unsigned char		msr_saved_flags;
 	char			name[20];
 	unsigned long		port_activity;
+	u32			context_loss_cnt;
+	u32			errata;
+	u8			wakeups_enabled;
+
+	struct pm_qos_request	pm_qos_request;
+	u32			latency;
+	u32			calc_latency;
+	struct work_struct	qos_work;
 };
 
 #endif /* __OMAP_SERIAL_H__ */
diff --git a/arch/arm/plat-omap/include/plat/omap34xx.h b/arch/arm/plat-omap/include/plat/omap34xx.h
index b9e85886b9d6..0d818acf3917 100644
--- a/arch/arm/plat-omap/include/plat/omap34xx.h
+++ b/arch/arm/plat-omap/include/plat/omap34xx.h
@@ -35,6 +35,8 @@
 #define L4_EMU_34XX_BASE	0x54000000
 #define L3_34XX_BASE		0x68000000
 
+#define L4_WK_AM33XX_BASE	0x44C00000
+
 #define OMAP3430_32KSYNCT_BASE	0x48320000
 #define OMAP3430_CM_BASE	0x48004800
 #define OMAP3430_PRM_BASE	0x48306800
diff --git a/arch/arm/plat-omap/include/plat/omap44xx.h b/arch/arm/plat-omap/include/plat/omap44xx.h
index ea2b8a6306e7..c0d478e55c84 100644
--- a/arch/arm/plat-omap/include/plat/omap44xx.h
+++ b/arch/arm/plat-omap/include/plat/omap44xx.h
@@ -45,6 +45,7 @@
 #define OMAP44XX_WKUPGEN_BASE		0x48281000
 #define OMAP44XX_MCPDM_BASE		0x40132000
 #define OMAP44XX_MCPDM_L3_BASE		0x49032000
+#define OMAP44XX_SAR_RAM_BASE		0x4a326000
 
 #define OMAP44XX_MAILBOX_BASE		(L4_44XX_BASE + 0xF4000)
 #define OMAP44XX_HSUSB_OTG_BASE		(L4_44XX_BASE + 0xAB000)
diff --git a/arch/arm/plat-omap/include/plat/omap_hwmod.h b/arch/arm/plat-omap/include/plat/omap_hwmod.h
index 8b372ede17c1..647010109afa 100644
--- a/arch/arm/plat-omap/include/plat/omap_hwmod.h
+++ b/arch/arm/plat-omap/include/plat/omap_hwmod.h
@@ -97,6 +97,7 @@ struct omap_hwmod_mux_info {
 	struct omap_device_pad		*pads;
 	int				nr_pads_dynamic;
 	struct omap_device_pad		**pads_dynamic;
+	int				*irqs;
 	bool				enabled;
 };
 
@@ -416,10 +417,13 @@ struct omap_hwmod_omap4_prcm {
  * _HWMOD_NO_MPU_PORT: no path exists for the MPU to write to this module
  * _HWMOD_WAKEUP_ENABLED: set when the omap_hwmod code has enabled ENAWAKEUP
  * _HWMOD_SYSCONFIG_LOADED: set when the OCP_SYSCONFIG value has been cached
+ * _HWMOD_SKIP_ENABLE: set if hwmod enabled during init (HWMOD_INIT_NO_IDLE) -
+ *     causes the first call to _enable() to only update the pinmux
  */
 #define _HWMOD_NO_MPU_PORT			(1 << 0)
 #define _HWMOD_WAKEUP_ENABLED			(1 << 1)
 #define _HWMOD_SYSCONFIG_LOADED			(1 << 2)
+#define _HWMOD_SKIP_ENABLE			(1 << 3)
 
 /*
  * omap_hwmod._state definitions
@@ -604,6 +608,8 @@ int omap_hwmod_get_context_loss_count(struct omap_hwmod *oh);
 
 int omap_hwmod_no_setup_reset(struct omap_hwmod *oh);
 
+int omap_hwmod_pad_route_irq(struct omap_hwmod *oh, int pad_idx, int irq_idx);
+
 /*
  * Chip variant-specific hwmod init routines - XXX should be converted
  * to use initcalls once the initial boot ordering is straightened out
diff --git a/arch/arm/plat-omap/include/plat/serial.h b/arch/arm/plat-omap/include/plat/serial.h
index ac44bde5d36d..198d1e6a4a6c 100644
--- a/arch/arm/plat-omap/include/plat/serial.h
+++ b/arch/arm/plat-omap/include/plat/serial.h
@@ -44,6 +44,7 @@
 #define OMAP3_UART2_BASE	OMAP2_UART2_BASE
 #define OMAP3_UART3_BASE	0x49020000
 #define OMAP3_UART4_BASE	0x49042000	/* Only on 36xx */
+#define OMAP3_UART4_AM35XX_BASE	0x4809E000	/* Only on AM35xx */
 
 /* OMAP4 serial ports */
 #define OMAP4_UART1_BASE	OMAP2_UART1_BASE
@@ -51,10 +52,10 @@
 #define OMAP4_UART3_BASE	0x48020000
 #define OMAP4_UART4_BASE	0x4806e000
 
-/* TI816X serial ports */
-#define TI816X_UART1_BASE	0x48020000
-#define TI816X_UART2_BASE	0x48022000
-#define TI816X_UART3_BASE	0x48024000
+/* TI81XX serial ports */
+#define TI81XX_UART1_BASE	0x48020000
+#define TI81XX_UART2_BASE	0x48022000
+#define TI81XX_UART3_BASE	0x48024000
 
 /* AM3505/3517 UART4 */
 #define AM35XX_UART4_BASE	0x4809E000	/* Only on AM3505/3517 */
@@ -89,9 +90,9 @@
 #define OMAP4UART2		OMAP2UART2
 #define OMAP4UART3		43
 #define OMAP4UART4		44
-#define TI816XUART1		81
-#define TI816XUART2		82
-#define TI816XUART3		83
+#define TI81XXUART1		81
+#define TI81XXUART2		82
+#define TI81XXUART3		83
 #define ZOOM_UART		95		/* Only on zoom2/3 */
 
 /* This is only used by 8250.c for omap1510 */
@@ -106,15 +107,13 @@
 #ifndef __ASSEMBLER__
 
 struct omap_board_data;
+struct omap_uart_port_info;
 
 extern void omap_serial_init(void);
-extern void omap_serial_init_port(struct omap_board_data *bdata);
 extern int omap_uart_can_sleep(void);
-extern void omap_uart_check_wakeup(void);
-extern void omap_uart_prepare_suspend(void);
-extern void omap_uart_prepare_idle(int num);
-extern void omap_uart_resume_idle(int num);
-extern void omap_uart_enable_irqs(int enable);
+extern void omap_serial_board_init(struct omap_uart_port_info *platform_data);
+extern void omap_serial_init_port(struct omap_board_data *bdata,
+		struct omap_uart_port_info *platform_data);
 #endif
 
 #endif
diff --git a/arch/arm/plat-omap/include/plat/sram.h b/arch/arm/plat-omap/include/plat/sram.h
index f500fc34d065..75aa1b2bef51 100644
--- a/arch/arm/plat-omap/include/plat/sram.h
+++ b/arch/arm/plat-omap/include/plat/sram.h
@@ -95,6 +95,10 @@ static inline void omap_push_sram_idle(void) {}
  */
 #define OMAP2_SRAM_PA		0x40200000
 #define OMAP3_SRAM_PA           0x40200000
+#ifdef CONFIG_OMAP4_ERRATA_I688
+#define OMAP4_SRAM_PA		0x40304000
+#define OMAP4_SRAM_VA		0xfe404000
+#else
 #define OMAP4_SRAM_PA		0x40300000
-
+#endif
 #endif
diff --git a/arch/arm/plat-omap/include/plat/ti816x.h b/arch/arm/plat-omap/include/plat/ti81xx.h
index 50510f5dda1e..8f9843f78422 100644
--- a/arch/arm/plat-omap/include/plat/ti816x.h
+++ b/arch/arm/plat-omap/include/plat/ti81xx.h
@@ -1,5 +1,5 @@
 /*
- * This file contains the address data for various TI816X modules.
+ * This file contains the address data for various TI81XX modules.
  *
  * Copyright (C) 2010 Texas Instruments, Inc. - http://www.ti.com/
  *
@@ -13,15 +13,15 @@
  * GNU General Public License for more details.
  */
 
-#ifndef __ASM_ARCH_TI816X_H
-#define __ASM_ARCH_TI816X_H
+#ifndef __ASM_ARCH_TI81XX_H
+#define __ASM_ARCH_TI81XX_H
 
-#define L4_SLOW_TI816X_BASE	0x48000000
+#define L4_SLOW_TI81XX_BASE	0x48000000
 
-#define TI816X_SCM_BASE		0x48140000
-#define TI816X_CTRL_BASE	TI816X_SCM_BASE
-#define TI816X_PRCM_BASE	0x48180000
+#define TI81XX_SCM_BASE		0x48140000
+#define TI81XX_CTRL_BASE	TI81XX_SCM_BASE
+#define TI81XX_PRCM_BASE	0x48180000
 
-#define TI816X_ARM_INTC_BASE	0x48200000
+#define TI81XX_ARM_INTC_BASE	0x48200000
 
-#endif /* __ASM_ARCH_TI816X_H */
+#endif /* __ASM_ARCH_TI81XX_H */
diff --git a/arch/arm/plat-omap/include/plat/uncompress.h b/arch/arm/plat-omap/include/plat/uncompress.h
index 2f472e989ec6..6ee90495ca4c 100644
--- a/arch/arm/plat-omap/include/plat/uncompress.h
+++ b/arch/arm/plat-omap/include/plat/uncompress.h
@@ -99,9 +99,9 @@ static inline void flush(void)
 #define DEBUG_LL_ZOOM(mach)						\
 	_DEBUG_LL_ENTRY(mach, ZOOM_UART_BASE, ZOOM_PORT_SHIFT, ZOOM_UART)
 
-#define DEBUG_LL_TI816X(p, mach)					\
-	_DEBUG_LL_ENTRY(mach, TI816X_UART##p##_BASE, OMAP_PORT_SHIFT,	\
-		TI816XUART##p)
+#define DEBUG_LL_TI81XX(p, mach)					\
+	_DEBUG_LL_ENTRY(mach, TI81XX_UART##p##_BASE, OMAP_PORT_SHIFT,	\
+		TI81XXUART##p)
 
 static inline void __arch_decomp_setup(unsigned long arch_id)
 {
@@ -177,7 +177,10 @@ static inline void __arch_decomp_setup(unsigned long arch_id)
 		DEBUG_LL_ZOOM(omap_zoom3);
 
 		/* TI8168 base boards using UART3 */
-		DEBUG_LL_TI816X(3, ti8168evm);
+		DEBUG_LL_TI81XX(3, ti8168evm);
+
+		/* TI8148 base boards using UART1 */
+		DEBUG_LL_TI81XX(1, ti8148evm);
 
 	} while (0);
 }
diff --git a/arch/arm/plat-omap/include/plat/usb.h b/arch/arm/plat-omap/include/plat/usb.h
index 17d3c939775c..dc864b580da0 100644
--- a/arch/arm/plat-omap/include/plat/usb.h
+++ b/arch/arm/plat-omap/include/plat/usb.h
@@ -100,9 +100,6 @@ extern void usb_musb_init(struct omap_musb_board_data *board_data);
 
 extern void usbhs_init(const struct usbhs_omap_board_data *pdata);
 
-extern int omap_usbhs_enable(struct device *dev);
-extern void omap_usbhs_disable(struct device *dev);
-
 extern int omap4430_phy_power(struct device *dev, int ID, int on);
 extern int omap4430_phy_set_clk(struct device *dev, int on);
 extern int omap4430_phy_init(struct device *dev);
@@ -114,6 +111,7 @@ extern void am35x_musb_reset(void);
 extern void am35x_musb_phy_power(u8 on);
 extern void am35x_musb_clear_irq(void);
 extern void am35x_set_mode(u8 musb_mode);
+extern void ti81xx_musb_phy_power(u8 on);
 
 /*
  * FIXME correct answer depends on hmc_mode,
@@ -273,6 +271,37 @@ static inline void omap2_usbfs_init(struct omap_usb_config *pdata)
 #define CONF2_OTGPWRDN		(1 << 2)
 #define CONF2_DATPOL		(1 << 1)
 
+/* TI81XX specific definitions */
+#define USBCTRL0	0x620
+#define USBSTAT0	0x624
+
+/* TI816X PHY controls bits */
+#define TI816X_USBPHY0_NORMAL_MODE	(1 << 0)
+#define TI816X_USBPHY_REFCLK_OSC	(1 << 8)
+
+/* TI814X PHY controls bits */
+#define USBPHY_CM_PWRDN		(1 << 0)
+#define USBPHY_OTG_PWRDN	(1 << 1)
+#define USBPHY_CHGDET_DIS	(1 << 2)
+#define USBPHY_CHGDET_RSTRT	(1 << 3)
+#define USBPHY_SRCONDM		(1 << 4)
+#define USBPHY_SINKONDP		(1 << 5)
+#define USBPHY_CHGISINK_EN	(1 << 6)
+#define USBPHY_CHGVSRC_EN	(1 << 7)
+#define USBPHY_DMPULLUP		(1 << 8)
+#define USBPHY_DPPULLUP		(1 << 9)
+#define USBPHY_CDET_EXTCTL	(1 << 10)
+#define USBPHY_GPIO_MODE	(1 << 12)
+#define USBPHY_DPOPBUFCTL	(1 << 13)
+#define USBPHY_DMOPBUFCTL	(1 << 14)
+#define USBPHY_DPINPUT		(1 << 15)
+#define USBPHY_DMINPUT		(1 << 16)
+#define USBPHY_DPGPIO_PD	(1 << 17)
+#define USBPHY_DMGPIO_PD	(1 << 18)
+#define USBPHY_OTGVDET_EN	(1 << 19)
+#define USBPHY_OTGSESSEND_EN	(1 << 20)
+#define USBPHY_DATA_POLARITY	(1 << 23)
+
 #if defined(CONFIG_ARCH_OMAP1) && defined(CONFIG_USB)
 u32 omap1_usb0_init(unsigned nwires, unsigned is_device);
 u32 omap1_usb1_init(unsigned nwires);
diff --git a/arch/arm/plat-omap/sram.c b/arch/arm/plat-omap/sram.c
index 8b28664d1c62..4243bdcc87bc 100644
--- a/arch/arm/plat-omap/sram.c
+++ b/arch/arm/plat-omap/sram.c
@@ -40,7 +40,11 @@
 #define OMAP1_SRAM_PA		0x20000000
 #define OMAP2_SRAM_PUB_PA	(OMAP2_SRAM_PA + 0xf800)
 #define OMAP3_SRAM_PUB_PA       (OMAP3_SRAM_PA + 0x8000)
+#ifdef CONFIG_OMAP4_ERRATA_I688
+#define OMAP4_SRAM_PUB_PA	OMAP4_SRAM_PA
+#else
 #define OMAP4_SRAM_PUB_PA	(OMAP4_SRAM_PA + 0x4000)
+#endif
 
 #if defined(CONFIG_ARCH_OMAP2PLUS)
 #define SRAM_BOOTLOADER_SZ	0x00
@@ -141,11 +145,9 @@ static void __init omap_detect_sram(void)
 			omap_sram_size = 0x32000;	/* 200K */
 		else if (cpu_is_omap15xx())
 			omap_sram_size = 0x30000;	/* 192K */
-		else if (cpu_is_omap1610() || cpu_is_omap1621() ||
-		     cpu_is_omap1710())
+		else if (cpu_is_omap1610() || cpu_is_omap1611() ||
+				cpu_is_omap1621() || cpu_is_omap1710())
 			omap_sram_size = 0x4000;	/* 16K */
-		else if (cpu_is_omap1611())
-			omap_sram_size = SZ_256K;
 		else {
 			pr_err("Could not detect SRAM size\n");
 			omap_sram_size = 0x4000;
@@ -163,6 +165,10 @@ static void __init omap_map_sram(void)
 	if (omap_sram_size == 0)
 		return;
 
+#ifdef CONFIG_OMAP4_ERRATA_I688
+		omap_sram_start += PAGE_SIZE;
+		omap_sram_size -= SZ_16K;
+#endif
 	if (cpu_is_omap34xx()) {
 		/*
 		 * SRAM must be marked as non-cached on OMAP3 since the
@@ -224,6 +230,9 @@ static void (*_omap_sram_reprogram_clock)(u32 dpllctl, u32 ckctl);
 void omap_sram_reprogram_clock(u32 dpllctl, u32 ckctl)
 {
 	BUG_ON(!_omap_sram_reprogram_clock);
+	/* On 730, bit 13 must always be 1 */
+	if (cpu_is_omap7xx())
+		ckctl |= 0x2000;
 	_omap_sram_reprogram_clock(dpllctl, ckctl);
 }
 
diff --git a/arch/arm/plat-orion/Makefile b/arch/arm/plat-orion/Makefile
index 95a5fc53b6db..c20ce0f5ce33 100644
--- a/arch/arm/plat-orion/Makefile
+++ b/arch/arm/plat-orion/Makefile
@@ -2,7 +2,7 @@
 # Makefile for the linux kernel.
 #
 
-obj-y	:= irq.o pcie.o time.o common.o mpp.o
+obj-y	:= irq.o pcie.o time.o common.o mpp.o addr-map.o
 obj-m	:=
 obj-n	:=
 obj-	:=
diff --git a/arch/arm/plat-orion/addr-map.c b/arch/arm/plat-orion/addr-map.c
new file mode 100644
index 000000000000..367ca89ac403
--- /dev/null
+++ b/arch/arm/plat-orion/addr-map.c
@@ -0,0 +1,174 @@
+/*
+ * arch/arm/plat-orion/addr-map.c
+ *
+ * Address map functions for Marvell Orion based SoCs
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2.  This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/mbus.h>
+#include <linux/io.h>
+#include <plat/addr-map.h>
+
+struct mbus_dram_target_info orion_mbus_dram_info;
+
+const struct mbus_dram_target_info *mv_mbus_dram_info(void)
+{
+	return &orion_mbus_dram_info;
+}
+EXPORT_SYMBOL_GPL(mv_mbus_dram_info);
+
+/*
+ * DDR target is the same on all Orion platforms.
+ */
+#define TARGET_DDR		0
+
+/*
+ * Helpers to get DDR bank info
+ */
+#define DDR_BASE_CS_OFF(n)	(0x0000 + ((n) << 3))
+#define DDR_SIZE_CS_OFF(n)	(0x0004 + ((n) << 3))
+
+/*
+ * CPU Address Decode Windows registers
+ */
+#define WIN_CTRL_OFF		0x0000
+#define WIN_BASE_OFF		0x0004
+#define WIN_REMAP_LO_OFF	0x0008
+#define WIN_REMAP_HI_OFF	0x000c
+
+/*
+ * Default implementation
+ */
+static void __init __iomem *
+orion_win_cfg_base(const struct orion_addr_map_cfg *cfg, int win)
+{
+	return (void __iomem *)(cfg->bridge_virt_base + (win << 4));
+}
+
+/*
+ * Default implementation
+ */
+static int __init orion_cpu_win_can_remap(const struct orion_addr_map_cfg *cfg,
+					  const int win)
+{
+	if (win < cfg->remappable_wins)
+		return 1;
+
+	return 0;
+}
+
+void __init orion_setup_cpu_win(const struct orion_addr_map_cfg *cfg,
+				const int win, const u32 base,
+				const u32 size, const u8 target,
+				const u8 attr, const int remap)
+{
+	void __iomem *addr = cfg->win_cfg_base(cfg, win);
+	u32 ctrl, base_high, remap_addr;
+
+	if (win >= cfg->num_wins) {
+		printk(KERN_ERR "setup_cpu_win: trying to allocate window "
+		       "%d when only %d allowed\n", win, cfg->num_wins);
+	}
+
+	base_high = base & 0xffff0000;
+	ctrl = ((size - 1) & 0xffff0000) | (attr << 8) | (target << 4) | 1;
+
+	writel(base_high, addr + WIN_BASE_OFF);
+	writel(ctrl, addr + WIN_CTRL_OFF);
+	if (cfg->cpu_win_can_remap(cfg, win)) {
+		if (remap < 0)
+			remap_addr = base;
+		else
+			remap_addr = remap;
+		writel(remap_addr & 0xffff0000, addr + WIN_REMAP_LO_OFF);
+		writel(0, addr + WIN_REMAP_HI_OFF);
+	}
+}
+
+/*
+ * Configure a number of windows.
+ */
+static void __init orion_setup_cpu_wins(const struct orion_addr_map_cfg * cfg,
+					const struct orion_addr_map_info *info)
+{
+	while (info->win != -1) {
+		orion_setup_cpu_win(cfg, info->win, info->base, info->size,
+				    info->target, info->attr, info->remap);
+		info++;
+	}
+}
+
+static void __init orion_disable_wins(const struct orion_addr_map_cfg * cfg)
+{
+	void __iomem *addr;
+	int i;
+
+	for (i = 0; i < cfg->num_wins; i++) {
+		addr = cfg->win_cfg_base(cfg, i);
+
+		writel(0, addr + WIN_BASE_OFF);
+		writel(0, addr + WIN_CTRL_OFF);
+		if (cfg->cpu_win_can_remap(cfg, i)) {
+			writel(0, addr + WIN_REMAP_LO_OFF);
+			writel(0, addr + WIN_REMAP_HI_OFF);
+		}
+	}
+}
+
+/*
+ * Disable, clear and configure windows.
+ */
+void __init orion_config_wins(struct orion_addr_map_cfg * cfg,
+			      const struct orion_addr_map_info *info)
+{
+	if (!cfg->cpu_win_can_remap)
+		cfg->cpu_win_can_remap = orion_cpu_win_can_remap;
+
+	if (!cfg->win_cfg_base)
+		cfg->win_cfg_base = orion_win_cfg_base;
+
+	orion_disable_wins(cfg);
+
+	if (info)
+		orion_setup_cpu_wins(cfg, info);
+}
+
+/*
+ * Setup MBUS dram target info.
+ */
+void __init orion_setup_cpu_mbus_target(const struct orion_addr_map_cfg *cfg,
+					const u32 ddr_window_cpu_base)
+{
+	void __iomem *addr;
+	int i;
+	int cs;
+
+	orion_mbus_dram_info.mbus_dram_target_id = TARGET_DDR;
+
+	addr = (void __iomem *)ddr_window_cpu_base;
+
+	for (i = 0, cs = 0; i < 4; i++) {
+		u32 base = readl(addr + DDR_BASE_CS_OFF(i));
+		u32 size = readl(addr + DDR_SIZE_CS_OFF(i));
+
+		/*
+		 * Chip select enabled?
+		 */
+		if (size & 1) {
+			struct mbus_dram_window *w;
+
+			w = &orion_mbus_dram_info.cs[cs++];
+			w->cs_index = i;
+			w->mbus_attr = 0xf & ~(1 << i);
+			w->base = base & 0xffff0000;
+			w->size = (size | 0x0000ffff) + 1;
+		}
+	}
+	orion_mbus_dram_info.num_cs = cs;
+}
diff --git a/arch/arm/plat-orion/common.c b/arch/arm/plat-orion/common.c
index 9e5451b3c8e3..e5a2fde29b19 100644
--- a/arch/arm/plat-orion/common.c
+++ b/arch/arm/plat-orion/common.c
@@ -13,7 +13,6 @@
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
 #include <linux/serial_8250.h>
-#include <linux/mbus.h>
 #include <linux/ata_platform.h>
 #include <linux/mv643xx_eth.h>
 #include <linux/mv643xx_i2c.h>
@@ -203,13 +202,12 @@ void __init orion_rtc_init(unsigned long mapbase,
  ****************************************************************************/
 static __init void ge_complete(
 	struct mv643xx_eth_shared_platform_data *orion_ge_shared_data,
-	struct mbus_dram_target_info *mbus_dram_info, int tclk,
+	int tclk,
 	struct resource *orion_ge_resource, unsigned long irq,
 	struct platform_device *orion_ge_shared,
 	struct mv643xx_eth_platform_data *eth_data,
 	struct platform_device *orion_ge)
 {
-	orion_ge_shared_data->dram = mbus_dram_info;
 	orion_ge_shared_data->t_clk = tclk;
 	orion_ge_resource->start = irq;
 	orion_ge_resource->end = irq;
@@ -259,7 +257,6 @@ static struct platform_device orion_ge00 = {
 };
 
 void __init orion_ge00_init(struct mv643xx_eth_platform_data *eth_data,
-			    struct mbus_dram_target_info *mbus_dram_info,
 			    unsigned long mapbase,
 			    unsigned long irq,
 			    unsigned long irq_err,
@@ -267,7 +264,7 @@ void __init orion_ge00_init(struct mv643xx_eth_platform_data *eth_data,
 {
 	fill_resources(&orion_ge00_shared, orion_ge00_shared_resources,
 		       mapbase + 0x2000, SZ_16K - 1, irq_err);
-	ge_complete(&orion_ge00_shared_data, mbus_dram_info, tclk,
+	ge_complete(&orion_ge00_shared_data, tclk,
 		    orion_ge00_resources, irq, &orion_ge00_shared,
 		    eth_data, &orion_ge00);
 }
@@ -313,7 +310,6 @@ static struct platform_device orion_ge01 = {
 };
 
 void __init orion_ge01_init(struct mv643xx_eth_platform_data *eth_data,
-			    struct mbus_dram_target_info *mbus_dram_info,
 			    unsigned long mapbase,
 			    unsigned long irq,
 			    unsigned long irq_err,
@@ -321,7 +317,7 @@ void __init orion_ge01_init(struct mv643xx_eth_platform_data *eth_data,
 {
 	fill_resources(&orion_ge01_shared, orion_ge01_shared_resources,
 		       mapbase + 0x2000, SZ_16K - 1, irq_err);
-	ge_complete(&orion_ge01_shared_data, mbus_dram_info, tclk,
+	ge_complete(&orion_ge01_shared_data, tclk,
 		    orion_ge01_resources, irq, &orion_ge01_shared,
 		    eth_data, &orion_ge01);
 }
@@ -367,7 +363,6 @@ static struct platform_device orion_ge10 = {
 };
 
 void __init orion_ge10_init(struct mv643xx_eth_platform_data *eth_data,
-			    struct mbus_dram_target_info *mbus_dram_info,
 			    unsigned long mapbase,
 			    unsigned long irq,
 			    unsigned long irq_err,
@@ -375,7 +370,7 @@ void __init orion_ge10_init(struct mv643xx_eth_platform_data *eth_data,
 {
 	fill_resources(&orion_ge10_shared, orion_ge10_shared_resources,
 		       mapbase + 0x2000, SZ_16K - 1, irq_err);
-	ge_complete(&orion_ge10_shared_data, mbus_dram_info, tclk,
+	ge_complete(&orion_ge10_shared_data, tclk,
 		    orion_ge10_resources, irq, &orion_ge10_shared,
 		    eth_data, &orion_ge10);
 }
@@ -421,7 +416,6 @@ static struct platform_device orion_ge11 = {
 };
 
 void __init orion_ge11_init(struct mv643xx_eth_platform_data *eth_data,
-			    struct mbus_dram_target_info *mbus_dram_info,
 			    unsigned long mapbase,
 			    unsigned long irq,
 			    unsigned long irq_err,
@@ -429,7 +423,7 @@ void __init orion_ge11_init(struct mv643xx_eth_platform_data *eth_data,
 {
 	fill_resources(&orion_ge11_shared, orion_ge11_shared_resources,
 		       mapbase + 0x2000, SZ_16K - 1, irq_err);
-	ge_complete(&orion_ge11_shared_data, mbus_dram_info, tclk,
+	ge_complete(&orion_ge11_shared_data, tclk,
 		    orion_ge11_resources, irq, &orion_ge11_shared,
 		    eth_data, &orion_ge11);
 }
@@ -592,8 +586,6 @@ void __init orion_wdt_init(unsigned long tclk)
 /*****************************************************************************
  * XOR
  ****************************************************************************/
-static struct mv_xor_platform_shared_data orion_xor_shared_data;
-
 static u64 orion_xor_dmamask = DMA_BIT_MASK(32);
 
 void __init orion_xor_init_channels(
@@ -632,9 +624,6 @@ static struct resource orion_xor0_shared_resources[] = {
 static struct platform_device orion_xor0_shared = {
 	.name		= MV_XOR_SHARED_NAME,
 	.id		= 0,
-	.dev		= {
-		.platform_data = &orion_xor_shared_data,
-	},
 	.num_resources	= ARRAY_SIZE(orion_xor0_shared_resources),
 	.resource	= orion_xor0_shared_resources,
 };
@@ -687,14 +676,11 @@ static struct platform_device orion_xor01_channel = {
 	},
 };
 
-void __init orion_xor0_init(struct mbus_dram_target_info *mbus_dram_info,
-			    unsigned long mapbase_low,
+void __init orion_xor0_init(unsigned long mapbase_low,
 			    unsigned long mapbase_high,
 			    unsigned long irq_0,
 			    unsigned long irq_1)
 {
-	orion_xor_shared_data.dram = mbus_dram_info;
-
 	orion_xor0_shared_resources[0].start = mapbase_low;
 	orion_xor0_shared_resources[0].end = mapbase_low + 0xff;
 	orion_xor0_shared_resources[1].start = mapbase_high;
@@ -727,9 +713,6 @@ static struct resource orion_xor1_shared_resources[] = {
 static struct platform_device orion_xor1_shared = {
 	.name		= MV_XOR_SHARED_NAME,
 	.id		= 1,
-	.dev		= {
-		.platform_data = &orion_xor_shared_data,
-	},
 	.num_resources	= ARRAY_SIZE(orion_xor1_shared_resources),
 	.resource	= orion_xor1_shared_resources,
 };
@@ -828,11 +811,9 @@ static struct platform_device orion_ehci = {
 	},
 };
 
-void __init orion_ehci_init(struct mbus_dram_target_info *mbus_dram_info,
-			    unsigned long mapbase,
+void __init orion_ehci_init(unsigned long mapbase,
 			    unsigned long irq)
 {
-	orion_ehci_data.dram = mbus_dram_info;
 	fill_resources(&orion_ehci, orion_ehci_resources, mapbase, SZ_4K - 1,
 		       irq);
 
@@ -854,11 +835,9 @@ static struct platform_device orion_ehci_1 = {
 	},
 };
 
-void __init orion_ehci_1_init(struct mbus_dram_target_info *mbus_dram_info,
-			      unsigned long mapbase,
+void __init orion_ehci_1_init(unsigned long mapbase,
 			      unsigned long irq)
 {
-	orion_ehci_data.dram = mbus_dram_info;
 	fill_resources(&orion_ehci_1, orion_ehci_1_resources,
 		       mapbase, SZ_4K - 1, irq);
 
@@ -880,11 +859,9 @@ static struct platform_device orion_ehci_2 = {
 	},
 };
 
-void __init orion_ehci_2_init(struct mbus_dram_target_info *mbus_dram_info,
-			      unsigned long mapbase,
+void __init orion_ehci_2_init(unsigned long mapbase,
 			      unsigned long irq)
 {
-	orion_ehci_data.dram = mbus_dram_info;
 	fill_resources(&orion_ehci_2, orion_ehci_2_resources,
 		       mapbase, SZ_4K - 1, irq);
 
@@ -911,11 +888,9 @@ static struct platform_device orion_sata = {
 };
 
 void __init orion_sata_init(struct mv_sata_platform_data *sata_data,
-			    struct mbus_dram_target_info *mbus_dram_info,
 			    unsigned long mapbase,
 			    unsigned long irq)
 {
-	sata_data->dram = mbus_dram_info;
 	orion_sata.dev.platform_data = sata_data;
 	fill_resources(&orion_sata, orion_sata_resources,
 		       mapbase, 0x5000 - 1, irq);
diff --git a/arch/arm/plat-orion/include/plat/addr-map.h b/arch/arm/plat-orion/include/plat/addr-map.h
new file mode 100644
index 000000000000..fd556f77562c
--- /dev/null
+++ b/arch/arm/plat-orion/include/plat/addr-map.h
@@ -0,0 +1,53 @@
+/*
+ * arch/arm/plat-orion/include/plat/addr-map.h
+ *
+ * Marvell Orion SoC address map handling.
+ *
+ * This file is licensed under the terms of the GNU General Public
+ * License version 2.  This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#ifndef __PLAT_ADDR_MAP_H
+#define __PLAT_ADDR_MAP_H
+
+extern struct mbus_dram_target_info orion_mbus_dram_info;
+
+struct orion_addr_map_cfg {
+	const int num_wins;	/* Total number of windows */
+	const int remappable_wins;
+	const u32 bridge_virt_base;
+
+	/* If NULL, the default cpu_win_can_remap will be used, using
+	   the value in remappable_wins */
+	int (*cpu_win_can_remap) (const struct orion_addr_map_cfg *cfg,
+				  const int win);
+	/* If NULL, the default win_cfg_base will be used, using the
+	   value in bridge_virt_base */
+	void __iomem *(*win_cfg_base) (const struct orion_addr_map_cfg *cfg,
+				 const int win);
+};
+
+/*
+ * Information needed to setup one address mapping.
+ */
+struct orion_addr_map_info {
+	const int win;
+	const u32 base;
+	const u32 size;
+	const u8 target;
+	const u8 attr;
+	const int remap;
+};
+
+void __init orion_config_wins(struct orion_addr_map_cfg *cfg,
+			      const struct orion_addr_map_info *info);
+
+void __init orion_setup_cpu_win(const struct orion_addr_map_cfg *cfg,
+				const int win, const u32 base,
+				const u32 size, const u8 target,
+				const u8 attr, const int remap);
+
+void __init orion_setup_cpu_mbus_target(const struct orion_addr_map_cfg *cfg,
+					const u32 ddr_window_cpu_base);
+#endif
diff --git a/arch/arm/plat-orion/include/plat/audio.h b/arch/arm/plat-orion/include/plat/audio.h
index 9cf1f781329b..885f8abd927b 100644
--- a/arch/arm/plat-orion/include/plat/audio.h
+++ b/arch/arm/plat-orion/include/plat/audio.h
@@ -1,11 +1,8 @@
 #ifndef __PLAT_AUDIO_H
 #define __PLAT_AUDIO_H
 
-#include <linux/mbus.h>
-
 struct kirkwood_asoc_platform_data {
 	u32 tclk;
-	struct mbus_dram_target_info *dram;
 	int burst;
 };
 #endif
diff --git a/arch/arm/plat-orion/include/plat/common.h b/arch/arm/plat-orion/include/plat/common.h
index a63c357e2ab1..0fe08d77e835 100644
--- a/arch/arm/plat-orion/include/plat/common.h
+++ b/arch/arm/plat-orion/include/plat/common.h
@@ -37,28 +37,24 @@ void __init orion_rtc_init(unsigned long mapbase,
 			   unsigned long irq);
 
 void __init orion_ge00_init(struct mv643xx_eth_platform_data *eth_data,
-			    struct mbus_dram_target_info *mbus_dram_info,
 			    unsigned long mapbase,
 			    unsigned long irq,
 			    unsigned long irq_err,
 			    int tclk);
 
 void __init orion_ge01_init(struct mv643xx_eth_platform_data *eth_data,
-			    struct mbus_dram_target_info *mbus_dram_info,
 			    unsigned long mapbase,
 			    unsigned long irq,
 			    unsigned long irq_err,
 			    int tclk);
 
 void __init orion_ge10_init(struct mv643xx_eth_platform_data *eth_data,
-			    struct mbus_dram_target_info *mbus_dram_info,
 			    unsigned long mapbase,
 			    unsigned long irq,
 			    unsigned long irq_err,
 			    int tclk);
 
 void __init orion_ge11_init(struct mv643xx_eth_platform_data *eth_data,
-			    struct mbus_dram_target_info *mbus_dram_info,
 			    unsigned long mapbase,
 			    unsigned long irq,
 			    unsigned long irq_err,
@@ -82,8 +78,7 @@ void __init orion_spi_1_init(unsigned long mapbase,
 
 void __init orion_wdt_init(unsigned long tclk);
 
-void __init orion_xor0_init(struct mbus_dram_target_info *mbus_dram_info,
-			    unsigned long mapbase_low,
+void __init orion_xor0_init(unsigned long mapbase_low,
 			    unsigned long mapbase_high,
 			    unsigned long irq_0,
 			    unsigned long irq_1);
@@ -93,20 +88,16 @@ void __init orion_xor1_init(unsigned long mapbase_low,
 			    unsigned long irq_0,
 			    unsigned long irq_1);
 
-void __init orion_ehci_init(struct mbus_dram_target_info *mbus_dram_info,
-			    unsigned long mapbase,
+void __init orion_ehci_init(unsigned long mapbase,
 			    unsigned long irq);
 
-void __init orion_ehci_1_init(struct mbus_dram_target_info *mbus_dram_info,
-			      unsigned long mapbase,
+void __init orion_ehci_1_init(unsigned long mapbase,
 			      unsigned long irq);
 
-void __init orion_ehci_2_init(struct mbus_dram_target_info *mbus_dram_info,
-			      unsigned long mapbase,
+void __init orion_ehci_2_init(unsigned long mapbase,
 			      unsigned long irq);
 
 void __init orion_sata_init(struct mv_sata_platform_data *sata_data,
-			    struct mbus_dram_target_info *mbus_dram_info,
 			    unsigned long mapbase,
 			    unsigned long irq);
 
diff --git a/arch/arm/plat-orion/include/plat/ehci-orion.h b/arch/arm/plat-orion/include/plat/ehci-orion.h
index 4ec668e77460..6fc78e430420 100644
--- a/arch/arm/plat-orion/include/plat/ehci-orion.h
+++ b/arch/arm/plat-orion/include/plat/ehci-orion.h
@@ -19,7 +19,6 @@ enum orion_ehci_phy_ver {
 };
 
 struct orion_ehci_data {
-	struct mbus_dram_target_info	*dram;
 	enum orion_ehci_phy_ver phy_version;
 };
 
diff --git a/arch/arm/plat-orion/include/plat/mv_xor.h b/arch/arm/plat-orion/include/plat/mv_xor.h
index bd5f3bdb4ae3..2ba1f7d76eef 100644
--- a/arch/arm/plat-orion/include/plat/mv_xor.h
+++ b/arch/arm/plat-orion/include/plat/mv_xor.h
@@ -13,12 +13,6 @@
 #define MV_XOR_SHARED_NAME	"mv_xor_shared"
 #define MV_XOR_NAME		"mv_xor"
 
-struct mbus_dram_target_info;
-
-struct mv_xor_platform_shared_data {
-	struct mbus_dram_target_info	*dram;
-};
-
 struct mv_xor_platform_data {
 	struct platform_device		*shared;
 	int				hw_id;
diff --git a/arch/arm/plat-orion/include/plat/mvsdio.h b/arch/arm/plat-orion/include/plat/mvsdio.h
index 14ca88676002..1190efedcb94 100644
--- a/arch/arm/plat-orion/include/plat/mvsdio.h
+++ b/arch/arm/plat-orion/include/plat/mvsdio.h
@@ -12,7 +12,6 @@
 #include <linux/mbus.h>
 
 struct mvsdio_platform_data {
-	struct mbus_dram_target_info *dram;
 	unsigned int clock;
 	int gpio_card_detect;
 	int gpio_write_protect;
diff --git a/arch/arm/plat-orion/include/plat/pcie.h b/arch/arm/plat-orion/include/plat/pcie.h
index cc99163e73fd..fe5b9e862747 100644
--- a/arch/arm/plat-orion/include/plat/pcie.h
+++ b/arch/arm/plat-orion/include/plat/pcie.h
@@ -20,8 +20,7 @@ int orion_pcie_x4_mode(void __iomem *base);
 int orion_pcie_get_local_bus_nr(void __iomem *base);
 void orion_pcie_set_local_bus_nr(void __iomem *base, int nr);
 void orion_pcie_reset(void __iomem *base);
-void orion_pcie_setup(void __iomem *base,
-		      struct mbus_dram_target_info *dram);
+void orion_pcie_setup(void __iomem *base);
 int orion_pcie_rd_conf(void __iomem *base, struct pci_bus *bus,
 		       u32 devfn, int where, int size, u32 *val);
 int orion_pcie_rd_conf_tlp(void __iomem *base, struct pci_bus *bus,
diff --git a/arch/arm/plat-orion/pcie.c b/arch/arm/plat-orion/pcie.c
index af2d733c50b5..86dbb5bdb172 100644
--- a/arch/arm/plat-orion/pcie.c
+++ b/arch/arm/plat-orion/pcie.c
@@ -13,6 +13,7 @@
 #include <linux/mbus.h>
 #include <asm/mach/pci.h>
 #include <plat/pcie.h>
+#include <plat/addr-map.h>
 #include <linux/delay.h>
 
 /*
@@ -175,8 +176,7 @@ static void __init orion_pcie_setup_wins(void __iomem *base,
 	writel(((size - 1) & 0xffff0000) | 1, base + PCIE_BAR_CTRL_OFF(1));
 }
 
-void __init orion_pcie_setup(void __iomem *base,
-			     struct mbus_dram_target_info *dram)
+void __init orion_pcie_setup(void __iomem *base)
 {
 	u16 cmd;
 	u32 mask;
@@ -184,7 +184,7 @@ void __init orion_pcie_setup(void __iomem *base,
 	/*
 	 * Point PCIe unit MBUS decode windows to DRAM space.
 	 */
-	orion_pcie_setup_wins(base, dram);
+	orion_pcie_setup_wins(base, &orion_mbus_dram_info);
 
 	/*
 	 * Master + slave enable.
diff --git a/arch/arm/plat-pxa/include/plat/gpio-pxa.h b/arch/arm/plat-pxa/include/plat/gpio-pxa.h
deleted file mode 100644
index b6390beff323..000000000000
--- a/arch/arm/plat-pxa/include/plat/gpio-pxa.h
+++ /dev/null
@@ -1,44 +0,0 @@
-#ifndef __PLAT_PXA_GPIO_H
-#define __PLAT_PXA_GPIO_H
-
-struct irq_data;
-
-/*
- * We handle the GPIOs by banks, each bank covers up to 32 GPIOs with
- * one set of registers. The register offsets are organized below:
- *
- *           GPLR    GPDR    GPSR    GPCR    GRER    GFER    GEDR
- * BANK 0 - 0x0000  0x000C  0x0018  0x0024  0x0030  0x003C  0x0048
- * BANK 1 - 0x0004  0x0010  0x001C  0x0028  0x0034  0x0040  0x004C
- * BANK 2 - 0x0008  0x0014  0x0020  0x002C  0x0038  0x0044  0x0050
- *
- * BANK 3 - 0x0100  0x010C  0x0118  0x0124  0x0130  0x013C  0x0148
- * BANK 4 - 0x0104  0x0110  0x011C  0x0128  0x0134  0x0140  0x014C
- * BANK 5 - 0x0108  0x0114  0x0120  0x012C  0x0138  0x0144  0x0150
- *
- * NOTE:
- *   BANK 3 is only available on PXA27x and later processors.
- *   BANK 4 and 5 are only available on PXA935
- */
-
-#define GPIO_BANK(n)	(GPIO_REGS_VIRT + BANK_OFF(n))
-
-#define GPLR_OFFSET	0x00
-#define GPDR_OFFSET	0x0C
-#define GPSR_OFFSET	0x18
-#define GPCR_OFFSET	0x24
-#define GRER_OFFSET	0x30
-#define GFER_OFFSET	0x3C
-#define GEDR_OFFSET	0x48
-
-/* NOTE: some PXAs have fewer on-chip GPIOs (like PXA255, with 85).
- * Those cases currently cause holes in the GPIO number space, the
- * actual number of the last GPIO is recorded by 'pxa_last_gpio'.
- */
-extern int pxa_last_gpio;
-
-typedef int (*set_wake_t)(struct irq_data *d, unsigned int on);
-
-extern void pxa_init_gpio(int mux_irq, int start, int end, set_wake_t fn);
-
-#endif /* __PLAT_PXA_GPIO_H */
diff --git a/arch/arm/plat-pxa/include/plat/gpio.h b/arch/arm/plat-pxa/include/plat/gpio.h
deleted file mode 100644
index 258f77210b02..000000000000
--- a/arch/arm/plat-pxa/include/plat/gpio.h
+++ /dev/null
@@ -1,30 +0,0 @@
-#ifndef __PLAT_GPIO_H
-#define __PLAT_GPIO_H
-
-#define __ARM_GPIOLIB_COMPLEX
-
-/* The individual machine provides register offsets and NR_BUILTIN_GPIO */
-#include <mach/gpio-pxa.h>
-
-static inline int gpio_get_value(unsigned gpio)
-{
-	if (__builtin_constant_p(gpio) && (gpio < NR_BUILTIN_GPIO))
-		return GPLR(gpio) & GPIO_bit(gpio);
-	else
-		return __gpio_get_value(gpio);
-}
-
-static inline void gpio_set_value(unsigned gpio, int value)
-{
-	if (__builtin_constant_p(gpio) && (gpio < NR_BUILTIN_GPIO)) {
-		if (value)
-			GPSR(gpio) = GPIO_bit(gpio);
-		else
-			GPCR(gpio) = GPIO_bit(gpio);
-	} else
-		__gpio_set_value(gpio, value);
-}
-
-#define gpio_cansleep		__gpio_cansleep
-
-#endif /* __PLAT_GPIO_H */
diff --git a/arch/arm/plat-s3c24xx/dma.c b/arch/arm/plat-s3c24xx/dma.c
index 53754bcf15a7..9fe35348e03b 100644
--- a/arch/arm/plat-s3c24xx/dma.c
+++ b/arch/arm/plat-s3c24xx/dma.c
@@ -1437,11 +1437,10 @@ int __init s3c24xx_dma_init_map(struct s3c24xx_dma_selection *sel)
 	size_t map_sz = sizeof(*nmap) * sel->map_size;
 	int ptr;
 
-	nmap = kmalloc(map_sz, GFP_KERNEL);
+	nmap = kmemdup(sel->map, map_sz, GFP_KERNEL);
 	if (nmap == NULL)
 		return -ENOMEM;
 
-	memcpy(nmap, sel->map, map_sz);
 	memcpy(&dma_sel, sel, sizeof(*sel));
 
 	dma_sel.map = nmap;
diff --git a/arch/arm/plat-s3c24xx/s3c2443-clock.c b/arch/arm/plat-s3c24xx/s3c2443-clock.c
index 5a21b15b2a97..95e68190d593 100644
--- a/arch/arm/plat-s3c24xx/s3c2443-clock.c
+++ b/arch/arm/plat-s3c24xx/s3c2443-clock.c
@@ -297,13 +297,6 @@ static struct clksrc_clk clk_usb_bus_host = {
 
 static struct clksrc_clk clksrc_clks[] = {
 	{
-		/* ART baud-rate clock sourced from esysclk via a divisor */
-		.clk	= {
-			.name		= "uartclk",
-			.parent		= &clk_esysclk.clk,
-		},
-		.reg_div = { .reg = S3C2443_CLKDIV1, .size = 4, .shift = 8 },
-	}, {
 		/* camera interface bus-clock, divided down from esysclk */
 		.clk	= {
 			.name		= "camif-upll",	/* same as 2440 name */
@@ -323,6 +316,15 @@ static struct clksrc_clk clksrc_clks[] = {
 	},
 };
 
+static struct clksrc_clk clk_esys_uart = {
+	/* ART baud-rate clock sourced from esysclk via a divisor */
+	.clk	= {
+		.name		= "uartclk",
+		.parent		= &clk_esysclk.clk,
+	},
+	.reg_div = { .reg = S3C2443_CLKDIV1, .size = 4, .shift = 8 },
+};
+
 static struct clk clk_i2s_ext = {
 	.name		= "i2s-ext",
 };
@@ -425,12 +427,6 @@ static struct clk init_clocks[] = {
 		.enable		= s3c2443_clkcon_enable_h,
 		.ctrlbit	= S3C2443_HCLKCON_DMA5,
 	}, {
-		.name		= "hsmmc",
-		.devname	= "s3c-sdhci.1",
-		.parent		= &clk_h,
-		.enable		= s3c2443_clkcon_enable_h,
-		.ctrlbit	= S3C2443_HCLKCON_HSMMC,
-	}, {
 		.name		= "gpio",
 		.parent		= &clk_p,
 		.enable		= s3c2443_clkcon_enable_p,
@@ -512,6 +508,14 @@ static struct clk init_clocks[] = {
 	}
 };
 
+static struct clk hsmmc1_clk = {
+	.name		= "hsmmc",
+	.devname	= "s3c-sdhci.1",
+	.parent		= &clk_h,
+	.enable		= s3c2443_clkcon_enable_h,
+	.ctrlbit	= S3C2443_HCLKCON_HSMMC,
+};
+
 static inline unsigned long s3c2443_get_hdiv(unsigned long clkcon0)
 {
 	clkcon0 &= S3C2443_CLKDIV0_HCLKDIV_MASK;
@@ -577,6 +581,7 @@ static struct clk *clks[] __initdata = {
 	&clk_epll,
 	&clk_usb_bus,
 	&clk_armdiv,
+	&hsmmc1_clk,
 };
 
 static struct clksrc_clk *clksrcs[] __initdata = {
@@ -589,6 +594,13 @@ static struct clksrc_clk *clksrcs[] __initdata = {
 	&clk_arm,
 };
 
+static struct clk_lookup s3c2443_clk_lookup[] = {
+	CLKDEV_INIT(NULL, "clk_uart_baud1", &s3c24xx_uclk),
+	CLKDEV_INIT(NULL, "clk_uart_baud2", &clk_p),
+	CLKDEV_INIT(NULL, "clk_uart_baud3", &clk_esys_uart.clk),
+	CLKDEV_INIT("s3c-sdhci.1", "mmc_busclk.0", &hsmmc1_clk),
+};
+
 void __init s3c2443_common_init_clocks(int xtal, pll_fn get_mpll,
 				       unsigned int *divs, int nr_divs,
 				       int divmask)
@@ -618,6 +630,7 @@ void __init s3c2443_common_init_clocks(int xtal, pll_fn get_mpll,
 	/* See s3c2443/etc notes on disabling clocks at init time */
 	s3c_register_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
 	s3c_disable_clocks(init_clocks_off, ARRAY_SIZE(init_clocks_off));
+	clkdev_add_table(s3c2443_clk_lookup, ARRAY_SIZE(s3c2443_clk_lookup));
 
 	s3c2443_common_setup_clocks(get_mpll);
 }
diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig
index 313eb26cfa62..6a2abe67c8b2 100644
--- a/arch/arm/plat-samsung/Kconfig
+++ b/arch/arm/plat-samsung/Kconfig
@@ -88,12 +88,20 @@ config S5P_GPIO_DRVSTR
 
 config SAMSUNG_GPIO_EXTRA
 	int "Number of additional GPIO pins"
+	default 128 if SAMSUNG_GPIO_EXTRA128
+	default 64 if SAMSUNG_GPIO_EXTRA64
 	default 0
 	help
 	  Use additional GPIO space in addition to the GPIO's the SOC
 	  provides. This allows expanding the GPIO space for use with
 	  GPIO expanders.
 
+config SAMSUNG_GPIO_EXTRA64
+	bool
+
+config SAMSUNG_GPIO_EXTRA128
+	bool
+
 config S3C_GPIO_SPACE
 	int "Space between gpio banks"
 	default 0
@@ -226,11 +234,23 @@ config SAMSUNG_DEV_IDE
 	help
 	  Compile in platform device definitions for IDE
 
-config S3C64XX_DEV_SPI
+config S3C64XX_DEV_SPI0
+	bool
+	help
+	  Compile in platform device definitions for S3C64XX's type
+	  SPI controller 0
+
+config S3C64XX_DEV_SPI1
+	bool
+	help
+	  Compile in platform device definitions for S3C64XX's type
+	  SPI controller 1
+
+config S3C64XX_DEV_SPI2
 	bool
 	help
 	  Compile in platform device definitions for S3C64XX's type
-	  SPI controllers.
+	  SPI controller 2
 
 config SAMSUNG_DEV_TS
 	bool
diff --git a/arch/arm/plat-samsung/devs.c b/arch/arm/plat-samsung/devs.c
index 4ca8b571f971..32a6e394db24 100644
--- a/arch/arm/plat-samsung/devs.c
+++ b/arch/arm/plat-samsung/devs.c
@@ -29,6 +29,7 @@
 #include <linux/mtd/partitions.h>
 #include <linux/mmc/host.h>
 #include <linux/ioport.h>
+#include <linux/platform_data/s3c-hsudc.h>
 
 #include <asm/irq.h>
 #include <asm/pmu.h>
@@ -61,6 +62,7 @@
 #include <plat/regs-iic.h>
 #include <plat/regs-serial.h>
 #include <plat/regs-spi.h>
+#include <plat/s3c64xx-spi.h>
 
 static u64 samsung_device_dma_mask = DMA_BIT_MASK(32);
 
@@ -1461,3 +1463,129 @@ struct platform_device s3c_device_wdt = {
 	.resource	= s3c_wdt_resource,
 };
 #endif /* CONFIG_S3C_DEV_WDT */
+
+#ifdef CONFIG_S3C64XX_DEV_SPI0
+static struct resource s3c64xx_spi0_resource[] = {
+	[0] = DEFINE_RES_MEM(S3C_PA_SPI0, SZ_256),
+	[1] = DEFINE_RES_DMA(DMACH_SPI0_TX),
+	[2] = DEFINE_RES_DMA(DMACH_SPI0_RX),
+	[3] = DEFINE_RES_IRQ(IRQ_SPI0),
+};
+
+struct platform_device s3c64xx_device_spi0 = {
+	.name		= "s3c64xx-spi",
+	.id		= 0,
+	.num_resources	= ARRAY_SIZE(s3c64xx_spi0_resource),
+	.resource	= s3c64xx_spi0_resource,
+	.dev = {
+		.dma_mask		= &samsung_device_dma_mask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+	},
+};
+
+void __init s3c64xx_spi0_set_platdata(struct s3c64xx_spi_info *pd,
+				      int src_clk_nr, int num_cs)
+{
+	if (!pd) {
+		pr_err("%s:Need to pass platform data\n", __func__);
+		return;
+	}
+
+	/* Reject invalid configuration */
+	if (!num_cs || src_clk_nr < 0) {
+		pr_err("%s: Invalid SPI configuration\n", __func__);
+		return;
+	}
+
+	pd->num_cs = num_cs;
+	pd->src_clk_nr = src_clk_nr;
+	if (!pd->cfg_gpio)
+		pd->cfg_gpio = s3c64xx_spi0_cfg_gpio;
+
+	s3c_set_platdata(pd, sizeof(*pd), &s3c64xx_device_spi0);
+}
+#endif /* CONFIG_S3C64XX_DEV_SPI0 */
+
+#ifdef CONFIG_S3C64XX_DEV_SPI1
+static struct resource s3c64xx_spi1_resource[] = {
+	[0] = DEFINE_RES_MEM(S3C_PA_SPI1, SZ_256),
+	[1] = DEFINE_RES_DMA(DMACH_SPI1_TX),
+	[2] = DEFINE_RES_DMA(DMACH_SPI1_RX),
+	[3] = DEFINE_RES_IRQ(IRQ_SPI1),
+};
+
+struct platform_device s3c64xx_device_spi1 = {
+	.name		= "s3c64xx-spi",
+	.id		= 1,
+	.num_resources	= ARRAY_SIZE(s3c64xx_spi1_resource),
+	.resource	= s3c64xx_spi1_resource,
+	.dev = {
+		.dma_mask		= &samsung_device_dma_mask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+	},
+};
+
+void __init s3c64xx_spi1_set_platdata(struct s3c64xx_spi_info *pd,
+				      int src_clk_nr, int num_cs)
+{
+	if (!pd) {
+		pr_err("%s:Need to pass platform data\n", __func__);
+		return;
+	}
+
+	/* Reject invalid configuration */
+	if (!num_cs || src_clk_nr < 0) {
+		pr_err("%s: Invalid SPI configuration\n", __func__);
+		return;
+	}
+
+	pd->num_cs = num_cs;
+	pd->src_clk_nr = src_clk_nr;
+	if (!pd->cfg_gpio)
+		pd->cfg_gpio = s3c64xx_spi1_cfg_gpio;
+
+	s3c_set_platdata(pd, sizeof(*pd), &s3c64xx_device_spi1);
+}
+#endif /* CONFIG_S3C64XX_DEV_SPI1 */
+
+#ifdef CONFIG_S3C64XX_DEV_SPI2
+static struct resource s3c64xx_spi2_resource[] = {
+	[0] = DEFINE_RES_MEM(S3C_PA_SPI2, SZ_256),
+	[1] = DEFINE_RES_DMA(DMACH_SPI2_TX),
+	[2] = DEFINE_RES_DMA(DMACH_SPI2_RX),
+	[3] = DEFINE_RES_IRQ(IRQ_SPI2),
+};
+
+struct platform_device s3c64xx_device_spi2 = {
+	.name		= "s3c64xx-spi",
+	.id		= 2,
+	.num_resources	= ARRAY_SIZE(s3c64xx_spi2_resource),
+	.resource	= s3c64xx_spi2_resource,
+	.dev = {
+		.dma_mask		= &samsung_device_dma_mask,
+		.coherent_dma_mask	= DMA_BIT_MASK(32),
+	},
+};
+
+void __init s3c64xx_spi2_set_platdata(struct s3c64xx_spi_info *pd,
+				      int src_clk_nr, int num_cs)
+{
+	if (!pd) {
+		pr_err("%s:Need to pass platform data\n", __func__);
+		return;
+	}
+
+	/* Reject invalid configuration */
+	if (!num_cs || src_clk_nr < 0) {
+		pr_err("%s: Invalid SPI configuration\n", __func__);
+		return;
+	}
+
+	pd->num_cs = num_cs;
+	pd->src_clk_nr = src_clk_nr;
+	if (!pd->cfg_gpio)
+		pd->cfg_gpio = s3c64xx_spi2_cfg_gpio;
+
+	s3c_set_platdata(pd, sizeof(*pd), &s3c64xx_device_spi2);
+}
+#endif /* CONFIG_S3C64XX_DEV_SPI2 */
diff --git a/arch/arm/plat-samsung/dma-ops.c b/arch/arm/plat-samsung/dma-ops.c
index 93a994a5dd8f..2cded872f22b 100644
--- a/arch/arm/plat-samsung/dma-ops.c
+++ b/arch/arm/plat-samsung/dma-ops.c
@@ -18,23 +18,24 @@
 
 #include <mach/dma.h>
 
-static inline bool pl330_filter(struct dma_chan *chan, void *param)
-{
-	struct dma_pl330_peri *peri = chan->private;
-	return peri->peri_id == (unsigned)param;
-}
-
 static unsigned samsung_dmadev_request(enum dma_ch dma_ch,
 				struct samsung_dma_info *info)
 {
 	struct dma_chan *chan;
 	dma_cap_mask_t mask;
 	struct dma_slave_config slave_config;
+	void *filter_param;
 
 	dma_cap_zero(mask);
 	dma_cap_set(info->cap, mask);
 
-	chan = dma_request_channel(mask, pl330_filter, (void *)dma_ch);
+	/*
+	 * If a dma channel property of a device node from device tree is
+	 * specified, use that as the fliter parameter.
+	 */
+	filter_param = (dma_ch == DMACH_DT_PROP) ? (void *)info->dt_dmach_prop :
+				(void *)dma_ch;
+	chan = dma_request_channel(mask, pl330_filter, filter_param);
 
 	if (info->direction == DMA_FROM_DEVICE) {
 		memset(&slave_config, 0, sizeof(struct dma_slave_config));
diff --git a/arch/arm/plat-samsung/include/plat/devs.h b/arch/arm/plat-samsung/include/plat/devs.h
index ab633c9c2aec..4214ea0ff8fe 100644
--- a/arch/arm/plat-samsung/include/plat/devs.h
+++ b/arch/arm/plat-samsung/include/plat/devs.h
@@ -39,6 +39,7 @@ extern struct platform_device s3c64xx_device_pcm0;
 extern struct platform_device s3c64xx_device_pcm1;
 extern struct platform_device s3c64xx_device_spi0;
 extern struct platform_device s3c64xx_device_spi1;
+extern struct platform_device s3c64xx_device_spi2;
 
 extern struct platform_device s3c_device_adc;
 extern struct platform_device s3c_device_cfcon;
@@ -98,8 +99,6 @@ extern struct platform_device s5p6450_device_iis1;
 extern struct platform_device s5p6450_device_iis2;
 extern struct platform_device s5p6450_device_pcm0;
 
-extern struct platform_device s5p64x0_device_spi0;
-extern struct platform_device s5p64x0_device_spi1;
 
 extern struct platform_device s5pc100_device_ac97;
 extern struct platform_device s5pc100_device_iis0;
@@ -108,9 +107,6 @@ extern struct platform_device s5pc100_device_iis2;
 extern struct platform_device s5pc100_device_pcm0;
 extern struct platform_device s5pc100_device_pcm1;
 extern struct platform_device s5pc100_device_spdif;
-extern struct platform_device s5pc100_device_spi0;
-extern struct platform_device s5pc100_device_spi1;
-extern struct platform_device s5pc100_device_spi2;
 
 extern struct platform_device s5pv210_device_ac97;
 extern struct platform_device s5pv210_device_iis0;
@@ -120,8 +116,6 @@ extern struct platform_device s5pv210_device_pcm0;
 extern struct platform_device s5pv210_device_pcm1;
 extern struct platform_device s5pv210_device_pcm2;
 extern struct platform_device s5pv210_device_spdif;
-extern struct platform_device s5pv210_device_spi0;
-extern struct platform_device s5pv210_device_spi1;
 
 extern struct platform_device exynos4_device_ac97;
 extern struct platform_device exynos4_device_ahci;
@@ -129,6 +123,7 @@ extern struct platform_device exynos4_device_dwmci;
 extern struct platform_device exynos4_device_i2s0;
 extern struct platform_device exynos4_device_i2s1;
 extern struct platform_device exynos4_device_i2s2;
+extern struct platform_device exynos4_device_ohci;
 extern struct platform_device exynos4_device_pcm0;
 extern struct platform_device exynos4_device_pcm1;
 extern struct platform_device exynos4_device_pcm2;
diff --git a/arch/arm/plat-samsung/include/plat/dma-ops.h b/arch/arm/plat-samsung/include/plat/dma-ops.h
index 4c1a363526cf..22eafc310bd7 100644
--- a/arch/arm/plat-samsung/include/plat/dma-ops.h
+++ b/arch/arm/plat-samsung/include/plat/dma-ops.h
@@ -31,6 +31,7 @@ struct samsung_dma_info {
 	enum dma_slave_buswidth width;
 	dma_addr_t fifo;
 	struct s3c2410_dma_client *client;
+	struct property *dt_dmach_prop;
 };
 
 struct samsung_dma_ops {
diff --git a/arch/arm/plat-samsung/include/plat/dma-pl330.h b/arch/arm/plat-samsung/include/plat/dma-pl330.h
index 2e55e5958674..c5eaad529de5 100644
--- a/arch/arm/plat-samsung/include/plat/dma-pl330.h
+++ b/arch/arm/plat-samsung/include/plat/dma-pl330.h
@@ -21,7 +21,8 @@
  * use these just as IDs.
  */
 enum dma_ch {
-	DMACH_UART0_RX,
+	DMACH_DT_PROP = -1,
+	DMACH_UART0_RX = 0,
 	DMACH_UART0_TX,
 	DMACH_UART1_RX,
 	DMACH_UART1_TX,
diff --git a/arch/arm/plat-samsung/include/plat/irqs.h b/arch/arm/plat-samsung/include/plat/irqs.h
index 08d1a7ef97b7..df46b776976a 100644
--- a/arch/arm/plat-samsung/include/plat/irqs.h
+++ b/arch/arm/plat-samsung/include/plat/irqs.h
@@ -44,13 +44,14 @@
 #define S5P_IRQ_VIC2(x)		(S5P_VIC2_BASE + (x))
 #define S5P_IRQ_VIC3(x)		(S5P_VIC3_BASE + (x))
 
-#define S5P_TIMER_IRQ(x)	(11 + (x))
+#define S5P_TIMER_IRQ(x)	(IRQ_TIMER_BASE + (x))
 
 #define IRQ_TIMER0		S5P_TIMER_IRQ(0)
 #define IRQ_TIMER1		S5P_TIMER_IRQ(1)
 #define IRQ_TIMER2		S5P_TIMER_IRQ(2)
 #define IRQ_TIMER3		S5P_TIMER_IRQ(3)
 #define IRQ_TIMER4		S5P_TIMER_IRQ(4)
+#define IRQ_TIMER_COUNT		(5)
 
 #define IRQ_EINT(x)		((x) < 16 ? ((x) + S5P_EINT_BASE1) \
 					: ((x) - 16 + S5P_EINT_BASE2))
diff --git a/arch/arm/plat-samsung/include/plat/keypad.h b/arch/arm/plat-samsung/include/plat/keypad.h
index b59a6483cd8a..c81ace332a1e 100644
--- a/arch/arm/plat-samsung/include/plat/keypad.h
+++ b/arch/arm/plat-samsung/include/plat/keypad.h
@@ -13,32 +13,7 @@
 #ifndef __PLAT_SAMSUNG_KEYPAD_H
 #define __PLAT_SAMSUNG_KEYPAD_H
 
-#include <linux/input/matrix_keypad.h>
-
-#define SAMSUNG_MAX_ROWS	8
-#define SAMSUNG_MAX_COLS	8
-
-/**
- * struct samsung_keypad_platdata - Platform device data for Samsung Keypad.
- * @keymap_data: pointer to &matrix_keymap_data.
- * @rows: number of keypad row supported.
- * @cols: number of keypad col supported.
- * @no_autorepeat: disable key autorepeat.
- * @wakeup: controls whether the device should be set up as wakeup source.
- * @cfg_gpio: configure the GPIO.
- *
- * Initialisation data specific to either the machine or the platform
- * for the device driver to use or call-back when configuring gpio.
- */
-struct samsung_keypad_platdata {
-	const struct matrix_keymap_data	*keymap_data;
-	unsigned int rows;
-	unsigned int cols;
-	bool no_autorepeat;
-	bool wakeup;
-
-	void (*cfg_gpio)(unsigned int rows, unsigned int cols);
-};
+#include <linux/input/samsung-keypad.h>
 
 /**
  * samsung_keypad_set_platdata - Set platform data for Samsung Keypad device.
diff --git a/arch/arm/plat-samsung/include/plat/regs-serial.h b/arch/arm/plat-samsung/include/plat/regs-serial.h
index 720734847027..29c26a818842 100644
--- a/arch/arm/plat-samsung/include/plat/regs-serial.h
+++ b/arch/arm/plat-samsung/include/plat/regs-serial.h
@@ -71,6 +71,7 @@
 #define S3C2410_LCON_IRM          (1<<6)
 
 #define S3C2440_UCON_CLKMASK	  (3<<10)
+#define S3C2440_UCON_CLKSHIFT	  (10)
 #define S3C2440_UCON_PCLK	  (0<<10)
 #define S3C2440_UCON_UCLK	  (1<<10)
 #define S3C2440_UCON_PCLK2	  (2<<10)
@@ -78,6 +79,7 @@
 #define S3C2443_UCON_EPLL	  (3<<10)
 
 #define S3C6400_UCON_CLKMASK	(3<<10)
+#define S3C6400_UCON_CLKSHIFT	(10)
 #define S3C6400_UCON_PCLK	(0<<10)
 #define S3C6400_UCON_PCLK2	(2<<10)
 #define S3C6400_UCON_UCLK0	(1<<10)
@@ -90,11 +92,14 @@
 #define S3C2440_UCON_DIVSHIFT	  (12)
 
 #define S3C2412_UCON_CLKMASK	(3<<10)
+#define S3C2412_UCON_CLKSHIFT	(10)
 #define S3C2412_UCON_UCLK	(1<<10)
 #define S3C2412_UCON_USYSCLK	(3<<10)
 #define S3C2412_UCON_PCLK	(0<<10)
 #define S3C2412_UCON_PCLK2	(2<<10)
 
+#define S3C2410_UCON_CLKMASK	(1 << 10)
+#define S3C2410_UCON_CLKSHIFT	(10)
 #define S3C2410_UCON_UCLK	  (1<<10)
 #define S3C2410_UCON_SBREAK	  (1<<4)
 
@@ -193,6 +198,7 @@
 
 /* Following are specific to S5PV210 */
 #define S5PV210_UCON_CLKMASK	(1<<10)
+#define S5PV210_UCON_CLKSHIFT	(10)
 #define S5PV210_UCON_PCLK	(0<<10)
 #define S5PV210_UCON_UCLK	(1<<10)
 
@@ -221,29 +227,24 @@
 #define S5PV210_UFSTAT_RXMASK	(255<<0)
 #define S5PV210_UFSTAT_RXSHIFT	(0)
 
-#define NO_NEED_CHECK_CLKSRC	1
+#define S3C2410_UCON_CLKSEL0	(1 << 0)
+#define S3C2410_UCON_CLKSEL1	(1 << 1)
+#define S3C2410_UCON_CLKSEL2	(1 << 2)
+#define S3C2410_UCON_CLKSEL3	(1 << 3)
 
-#ifndef __ASSEMBLY__
+/* Default values for s5pv210 UCON and UFCON uart registers */
+#define S5PV210_UCON_DEFAULT	(S3C2410_UCON_TXILEVEL |	\
+				 S3C2410_UCON_RXILEVEL |	\
+				 S3C2410_UCON_TXIRQMODE |	\
+				 S3C2410_UCON_RXIRQMODE |	\
+				 S3C2410_UCON_RXFIFO_TOI |	\
+				 S3C2443_UCON_RXERR_IRQEN)
 
-/* struct s3c24xx_uart_clksrc
- *
- * this structure defines a named clock source that can be used for the
- * uart, so that the best clock can be selected for the requested baud
- * rate.
- *
- * min_baud and max_baud define the range of baud-rates this clock is
- * acceptable for, if they are both zero, it is assumed any baud rate that
- * can be generated from this clock will be used.
- *
- * divisor gives the divisor from the clock to the one seen by the uart
-*/
+#define S5PV210_UFCON_DEFAULT	(S3C2410_UFCON_FIFOMODE |	\
+				 S5PV210_UFCON_TXTRIG4 |	\
+				 S5PV210_UFCON_RXTRIG4)
 
-struct s3c24xx_uart_clksrc {
-	const char	*name;
-	unsigned int	 divisor;
-	unsigned int	 min_baud;
-	unsigned int	 max_baud;
-};
+#ifndef __ASSEMBLY__
 
 /* configuration structure for per-machine configurations for the
  * serial port
@@ -257,15 +258,13 @@ struct s3c2410_uartcfg {
 	unsigned char	   unused;
 	unsigned short	   flags;
 	upf_t		   uart_flags;	 /* default uart flags */
+	unsigned int	   clk_sel;
 
 	unsigned int	   has_fracval;
 
 	unsigned long	   ucon;	 /* value of ucon for port */
 	unsigned long	   ulcon;	 /* value of ulcon for port */
 	unsigned long	   ufcon;	 /* value of ufcon for port */
-
-	struct s3c24xx_uart_clksrc *clocks;
-	unsigned int		    clocks_size;
 };
 
 /* s3c24xx_uart_devs
diff --git a/arch/arm/plat-samsung/include/plat/s3c64xx-spi.h b/arch/arm/plat-samsung/include/plat/s3c64xx-spi.h
index 4c16fa3621bb..aea68b60ef98 100644
--- a/arch/arm/plat-samsung/include/plat/s3c64xx-spi.h
+++ b/arch/arm/plat-samsung/include/plat/s3c64xx-spi.h
@@ -31,7 +31,6 @@ struct s3c64xx_spi_csinfo {
 /**
  * struct s3c64xx_spi_info - SPI Controller defining structure
  * @src_clk_nr: Clock source index for the CLK_CFG[SPI_CLKSEL] field.
- * @src_clk_name: Platform name of the corresponding clock.
  * @clk_from_cmu: If the SPI clock/prescalar control block is present
  *     by the platform's clock-management-unit and not in SPI controller.
  * @num_cs: Number of CS this controller emulates.
@@ -43,7 +42,6 @@ struct s3c64xx_spi_csinfo {
  */
 struct s3c64xx_spi_info {
 	int src_clk_nr;
-	char *src_clk_name;
 	bool clk_from_cmu;
 
 	int num_cs;
@@ -58,18 +56,28 @@ struct s3c64xx_spi_info {
 };
 
 /**
- * s3c64xx_spi_set_info - SPI Controller configure callback by the board
+ * s3c64xx_spi_set_platdata - SPI Controller configure callback by the board
  *				initialization code.
- * @cntrlr: SPI controller number the configuration is for.
+ * @pd: SPI platform data to set.
  * @src_clk_nr: Clock the SPI controller is to use to generate SPI clocks.
  * @num_cs: Number of elements in the 'cs' array.
  *
  * Call this from machine init code for each SPI Controller that
  * has some chips attached to it.
  */
-extern void s3c64xx_spi_set_info(int cntrlr, int src_clk_nr, int num_cs);
-extern void s5pc100_spi_set_info(int cntrlr, int src_clk_nr, int num_cs);
-extern void s5pv210_spi_set_info(int cntrlr, int src_clk_nr, int num_cs);
-extern void s5p64x0_spi_set_info(int cntrlr, int src_clk_nr, int num_cs);
+extern void s3c64xx_spi0_set_platdata(struct s3c64xx_spi_info *pd,
+				      int src_clk_nr, int num_cs);
+extern void s3c64xx_spi1_set_platdata(struct s3c64xx_spi_info *pd,
+				      int src_clk_nr, int num_cs);
+extern void s3c64xx_spi2_set_platdata(struct s3c64xx_spi_info *pd,
+				      int src_clk_nr, int num_cs);
 
+/* defined by architecture to configure gpio */
+extern int s3c64xx_spi0_cfg_gpio(struct platform_device *dev);
+extern int s3c64xx_spi1_cfg_gpio(struct platform_device *dev);
+extern int s3c64xx_spi2_cfg_gpio(struct platform_device *dev);
+
+extern struct s3c64xx_spi_info s3c64xx_spi0_pdata;
+extern struct s3c64xx_spi_info s3c64xx_spi1_pdata;
+extern struct s3c64xx_spi_info s3c64xx_spi2_pdata;
 #endif /* __S3C64XX_PLAT_SPI_H */
diff --git a/arch/arm/plat-samsung/include/plat/sdhci.h b/arch/arm/plat-samsung/include/plat/sdhci.h
index e7b3c752e919..656dc00d30ed 100644
--- a/arch/arm/plat-samsung/include/plat/sdhci.h
+++ b/arch/arm/plat-samsung/include/plat/sdhci.h
@@ -66,8 +66,6 @@ struct s3c_sdhci_platdata {
 	enum cd_types	cd_type;
 	enum clk_types	clk_type;
 
-	char		**clocks;	/* set of clock sources */
-
 	int		ext_cd_gpio;
 	bool		ext_cd_gpio_invert;
 	int	(*ext_cd_init)(void (*notify_func)(struct platform_device *,
@@ -125,16 +123,17 @@ extern void exynos4_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
 extern void exynos4_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
 extern void exynos4_setup_sdhci2_cfg_gpio(struct platform_device *, int w);
 extern void exynos4_setup_sdhci3_cfg_gpio(struct platform_device *, int w);
+extern void s5p64x0_setup_sdhci0_cfg_gpio(struct platform_device *, int w);
+extern void s5p64x0_setup_sdhci1_cfg_gpio(struct platform_device *, int w);
+extern void s5p6440_setup_sdhci2_cfg_gpio(struct platform_device *, int w);
+extern void s5p6450_setup_sdhci2_cfg_gpio(struct platform_device *, int w);
 
 /* S3C2416 SDHCI setup */
 
 #ifdef CONFIG_S3C2416_SETUP_SDHCI
-extern char *s3c2416_hsmmc_clksrcs[4];
-
 static inline void s3c2416_default_sdhci0(void)
 {
 #ifdef CONFIG_S3C_DEV_HSMMC
-	s3c_hsmmc0_def_platdata.clocks = s3c2416_hsmmc_clksrcs;
 	s3c_hsmmc0_def_platdata.cfg_gpio = s3c2416_setup_sdhci0_cfg_gpio;
 #endif /* CONFIG_S3C_DEV_HSMMC */
 }
@@ -142,7 +141,6 @@ static inline void s3c2416_default_sdhci0(void)
 static inline void s3c2416_default_sdhci1(void)
 {
 #ifdef CONFIG_S3C_DEV_HSMMC1
-	s3c_hsmmc1_def_platdata.clocks = s3c2416_hsmmc_clksrcs;
 	s3c_hsmmc1_def_platdata.cfg_gpio = s3c2416_setup_sdhci1_cfg_gpio;
 #endif /* CONFIG_S3C_DEV_HSMMC1 */
 }
@@ -152,15 +150,13 @@ static inline void s3c2416_default_sdhci0(void) { }
 static inline void s3c2416_default_sdhci1(void) { }
 
 #endif /* CONFIG_S3C2416_SETUP_SDHCI */
+
 /* S3C64XX SDHCI setup */
 
 #ifdef CONFIG_S3C64XX_SETUP_SDHCI
-extern char *s3c64xx_hsmmc_clksrcs[4];
-
 static inline void s3c6400_default_sdhci0(void)
 {
 #ifdef CONFIG_S3C_DEV_HSMMC
-	s3c_hsmmc0_def_platdata.clocks = s3c64xx_hsmmc_clksrcs;
 	s3c_hsmmc0_def_platdata.cfg_gpio = s3c64xx_setup_sdhci0_cfg_gpio;
 #endif
 }
@@ -168,7 +164,6 @@ static inline void s3c6400_default_sdhci0(void)
 static inline void s3c6400_default_sdhci1(void)
 {
 #ifdef CONFIG_S3C_DEV_HSMMC1
-	s3c_hsmmc1_def_platdata.clocks = s3c64xx_hsmmc_clksrcs;
 	s3c_hsmmc1_def_platdata.cfg_gpio = s3c64xx_setup_sdhci1_cfg_gpio;
 #endif
 }
@@ -176,7 +171,6 @@ static inline void s3c6400_default_sdhci1(void)
 static inline void s3c6400_default_sdhci2(void)
 {
 #ifdef CONFIG_S3C_DEV_HSMMC2
-	s3c_hsmmc2_def_platdata.clocks = s3c64xx_hsmmc_clksrcs;
 	s3c_hsmmc2_def_platdata.cfg_gpio = s3c64xx_setup_sdhci2_cfg_gpio;
 #endif
 }
@@ -184,7 +178,6 @@ static inline void s3c6400_default_sdhci2(void)
 static inline void s3c6410_default_sdhci0(void)
 {
 #ifdef CONFIG_S3C_DEV_HSMMC
-	s3c_hsmmc0_def_platdata.clocks = s3c64xx_hsmmc_clksrcs;
 	s3c_hsmmc0_def_platdata.cfg_gpio = s3c64xx_setup_sdhci0_cfg_gpio;
 #endif
 }
@@ -192,7 +185,6 @@ static inline void s3c6410_default_sdhci0(void)
 static inline void s3c6410_default_sdhci1(void)
 {
 #ifdef CONFIG_S3C_DEV_HSMMC1
-	s3c_hsmmc1_def_platdata.clocks = s3c64xx_hsmmc_clksrcs;
 	s3c_hsmmc1_def_platdata.cfg_gpio = s3c64xx_setup_sdhci1_cfg_gpio;
 #endif
 }
@@ -200,7 +192,6 @@ static inline void s3c6410_default_sdhci1(void)
 static inline void s3c6410_default_sdhci2(void)
 {
 #ifdef CONFIG_S3C_DEV_HSMMC2
-	s3c_hsmmc2_def_platdata.clocks = s3c64xx_hsmmc_clksrcs;
 	s3c_hsmmc2_def_platdata.cfg_gpio = s3c64xx_setup_sdhci2_cfg_gpio;
 #endif
 }
@@ -215,15 +206,51 @@ static inline void s3c6400_default_sdhci2(void) { }
 
 #endif /* CONFIG_S3C64XX_SETUP_SDHCI */
 
+/* S5P64X0 SDHCI setup */
+
+#ifdef CONFIG_S5P64X0_SETUP_SDHCI
+static inline void s5p64x0_default_sdhci0(void)
+{
+#ifdef CONFIG_S3C_DEV_HSMMC
+	s3c_hsmmc0_def_platdata.cfg_gpio = s5p64x0_setup_sdhci0_cfg_gpio;
+#endif
+}
+
+static inline void s5p64x0_default_sdhci1(void)
+{
+#ifdef CONFIG_S3C_DEV_HSMMC1
+	s3c_hsmmc1_def_platdata.cfg_gpio = s5p64x0_setup_sdhci1_cfg_gpio;
+#endif
+}
+
+static inline void s5p6440_default_sdhci2(void)
+{
+#ifdef CONFIG_S3C_DEV_HSMMC2
+	s3c_hsmmc2_def_platdata.cfg_gpio = s5p6440_setup_sdhci2_cfg_gpio;
+#endif
+}
+
+static inline void s5p6450_default_sdhci2(void)
+{
+#ifdef CONFIG_S3C_DEV_HSMMC2
+	s3c_hsmmc2_def_platdata.cfg_gpio = s5p6450_setup_sdhci2_cfg_gpio;
+#endif
+}
+
+#else
+static inline void s5p64x0_default_sdhci0(void) { }
+static inline void s5p64x0_default_sdhci1(void) { }
+static inline void s5p6440_default_sdhci2(void) { }
+static inline void s5p6450_default_sdhci2(void) { }
+
+#endif /* CONFIG_S5P64X0_SETUP_SDHCI */
+
 /* S5PC100 SDHCI setup */
 
 #ifdef CONFIG_S5PC100_SETUP_SDHCI
-extern char *s5pc100_hsmmc_clksrcs[4];
-
 static inline void s5pc100_default_sdhci0(void)
 {
 #ifdef CONFIG_S3C_DEV_HSMMC
-	s3c_hsmmc0_def_platdata.clocks = s5pc100_hsmmc_clksrcs;
 	s3c_hsmmc0_def_platdata.cfg_gpio = s5pc100_setup_sdhci0_cfg_gpio;
 #endif
 }
@@ -231,7 +258,6 @@ static inline void s5pc100_default_sdhci0(void)
 static inline void s5pc100_default_sdhci1(void)
 {
 #ifdef CONFIG_S3C_DEV_HSMMC1
-	s3c_hsmmc1_def_platdata.clocks = s5pc100_hsmmc_clksrcs;
 	s3c_hsmmc1_def_platdata.cfg_gpio = s5pc100_setup_sdhci1_cfg_gpio;
 #endif
 }
@@ -239,7 +265,6 @@ static inline void s5pc100_default_sdhci1(void)
 static inline void s5pc100_default_sdhci2(void)
 {
 #ifdef CONFIG_S3C_DEV_HSMMC2
-	s3c_hsmmc2_def_platdata.clocks = s5pc100_hsmmc_clksrcs;
 	s3c_hsmmc2_def_platdata.cfg_gpio = s5pc100_setup_sdhci2_cfg_gpio;
 #endif
 }
@@ -254,12 +279,9 @@ static inline void s5pc100_default_sdhci2(void) { }
 /* S5PV210 SDHCI setup */
 
 #ifdef CONFIG_S5PV210_SETUP_SDHCI
-extern char *s5pv210_hsmmc_clksrcs[4];
-
 static inline void s5pv210_default_sdhci0(void)
 {
 #ifdef CONFIG_S3C_DEV_HSMMC
-	s3c_hsmmc0_def_platdata.clocks = s5pv210_hsmmc_clksrcs;
 	s3c_hsmmc0_def_platdata.cfg_gpio = s5pv210_setup_sdhci0_cfg_gpio;
 #endif
 }
@@ -267,7 +289,6 @@ static inline void s5pv210_default_sdhci0(void)
 static inline void s5pv210_default_sdhci1(void)
 {
 #ifdef CONFIG_S3C_DEV_HSMMC1
-	s3c_hsmmc1_def_platdata.clocks = s5pv210_hsmmc_clksrcs;
 	s3c_hsmmc1_def_platdata.cfg_gpio = s5pv210_setup_sdhci1_cfg_gpio;
 #endif
 }
@@ -275,7 +296,6 @@ static inline void s5pv210_default_sdhci1(void)
 static inline void s5pv210_default_sdhci2(void)
 {
 #ifdef CONFIG_S3C_DEV_HSMMC2
-	s3c_hsmmc2_def_platdata.clocks = s5pv210_hsmmc_clksrcs;
 	s3c_hsmmc2_def_platdata.cfg_gpio = s5pv210_setup_sdhci2_cfg_gpio;
 #endif
 }
@@ -283,7 +303,6 @@ static inline void s5pv210_default_sdhci2(void)
 static inline void s5pv210_default_sdhci3(void)
 {
 #ifdef CONFIG_S3C_DEV_HSMMC3
-	s3c_hsmmc3_def_platdata.clocks = s5pv210_hsmmc_clksrcs;
 	s3c_hsmmc3_def_platdata.cfg_gpio = s5pv210_setup_sdhci3_cfg_gpio;
 #endif
 }
@@ -298,12 +317,9 @@ static inline void s5pv210_default_sdhci3(void) { }
 
 /* EXYNOS4 SDHCI setup */
 #ifdef CONFIG_EXYNOS4_SETUP_SDHCI
-extern char *exynos4_hsmmc_clksrcs[4];
-
 static inline void exynos4_default_sdhci0(void)
 {
 #ifdef CONFIG_S3C_DEV_HSMMC
-	s3c_hsmmc0_def_platdata.clocks = exynos4_hsmmc_clksrcs;
 	s3c_hsmmc0_def_platdata.cfg_gpio = exynos4_setup_sdhci0_cfg_gpio;
 #endif
 }
@@ -311,7 +327,6 @@ static inline void exynos4_default_sdhci0(void)
 static inline void exynos4_default_sdhci1(void)
 {
 #ifdef CONFIG_S3C_DEV_HSMMC1
-	s3c_hsmmc1_def_platdata.clocks = exynos4_hsmmc_clksrcs;
 	s3c_hsmmc1_def_platdata.cfg_gpio = exynos4_setup_sdhci1_cfg_gpio;
 #endif
 }
@@ -319,7 +334,6 @@ static inline void exynos4_default_sdhci1(void)
 static inline void exynos4_default_sdhci2(void)
 {
 #ifdef CONFIG_S3C_DEV_HSMMC2
-	s3c_hsmmc2_def_platdata.clocks = exynos4_hsmmc_clksrcs;
 	s3c_hsmmc2_def_platdata.cfg_gpio = exynos4_setup_sdhci2_cfg_gpio;
 #endif
 }
@@ -327,7 +341,6 @@ static inline void exynos4_default_sdhci2(void)
 static inline void exynos4_default_sdhci3(void)
 {
 #ifdef CONFIG_S3C_DEV_HSMMC3
-	s3c_hsmmc3_def_platdata.clocks = exynos4_hsmmc_clksrcs;
 	s3c_hsmmc3_def_platdata.cfg_gpio = exynos4_setup_sdhci3_cfg_gpio;
 #endif
 }
diff --git a/arch/arm/plat-samsung/include/plat/udc.h b/arch/arm/plat-samsung/include/plat/udc.h
index 8c22d586befb..de8e2288a509 100644
--- a/arch/arm/plat-samsung/include/plat/udc.h
+++ b/arch/arm/plat-samsung/include/plat/udc.h
@@ -37,20 +37,7 @@ struct s3c2410_udc_mach_info {
 
 extern void __init s3c24xx_udc_set_platdata(struct s3c2410_udc_mach_info *);
 
-/**
- * s3c24xx_hsudc_platdata - Platform data for USB High-Speed gadget controller.
- * @epnum: Number of endpoints to be instantiated by the controller driver.
- * @gpio_init: Platform specific USB related GPIO initialization.
- * @gpio_uninit: Platform specific USB releted GPIO uninitialzation.
- *
- * Representation of platform data for the S3C24XX USB 2.0 High Speed gadget
- * controllers.
- */
-struct s3c24xx_hsudc_platdata {
-	unsigned int	epnum;
-	void		(*gpio_init)(void);
-	void		(*gpio_uninit)(void);
-};
+struct s3c24xx_hsudc_platdata;
 
 extern void __init s3c24xx_hsudc_set_platdata(struct s3c24xx_hsudc_platdata *pd);
 
diff --git a/arch/avr32/boards/atngw100/setup.c b/arch/avr32/boards/atngw100/setup.c
index 1f17bde52cd4..7c756fb189f7 100644
--- a/arch/avr32/boards/atngw100/setup.c
+++ b/arch/avr32/boards/atngw100/setup.c
@@ -109,7 +109,7 @@ struct eth_addr {
 	u8 addr[6];
 };
 static struct eth_addr __initdata hw_addr[2];
-static struct eth_platform_data __initdata eth_data[2];
+static struct macb_platform_data __initdata eth_data[2];
 
 static struct spi_board_info spi0_board_info[] __initdata = {
 	{
diff --git a/arch/avr32/boards/atstk1000/atstk1002.c b/arch/avr32/boards/atstk1000/atstk1002.c
index 4643ff5107c9..c56ddac85d61 100644
--- a/arch/avr32/boards/atstk1000/atstk1002.c
+++ b/arch/avr32/boards/atstk1000/atstk1002.c
@@ -105,7 +105,7 @@ struct eth_addr {
 };
 
 static struct eth_addr __initdata hw_addr[2];
-static struct eth_platform_data __initdata eth_data[2] = {
+static struct macb_platform_data __initdata eth_data[2] = {
 	{
 		/*
 		 * The MDIO pullups on STK1000 are a bit too weak for
diff --git a/arch/avr32/boards/favr-32/setup.c b/arch/avr32/boards/favr-32/setup.c
index 86fab77a5a00..27bd6fbe21cb 100644
--- a/arch/avr32/boards/favr-32/setup.c
+++ b/arch/avr32/boards/favr-32/setup.c
@@ -50,7 +50,7 @@ struct eth_addr {
 	u8 addr[6];
 };
 static struct eth_addr __initdata hw_addr[1];
-static struct eth_platform_data __initdata eth_data[1] = {
+static struct macb_platform_data __initdata eth_data[1] = {
 	{
 		.phy_mask	= ~(1U << 1),
 	},
diff --git a/arch/avr32/boards/hammerhead/setup.c b/arch/avr32/boards/hammerhead/setup.c
index da14fbdd4e8e..9d1efd1cd425 100644
--- a/arch/avr32/boards/hammerhead/setup.c
+++ b/arch/avr32/boards/hammerhead/setup.c
@@ -102,7 +102,7 @@ struct eth_addr {
 };
 
 static struct eth_addr __initdata hw_addr[1];
-static struct eth_platform_data __initdata eth_data[1];
+static struct macb_platform_data __initdata eth_data[1];
 
 /*
  * The next two functions should go away as the boot loader is
diff --git a/arch/avr32/boards/merisc/setup.c b/arch/avr32/boards/merisc/setup.c
index e61bc948f959..ed137e335796 100644
--- a/arch/avr32/boards/merisc/setup.c
+++ b/arch/avr32/boards/merisc/setup.c
@@ -52,7 +52,7 @@ struct eth_addr {
 };
 
 static struct eth_addr __initdata hw_addr[2];
-static struct eth_platform_data __initdata eth_data[2];
+static struct macb_platform_data __initdata eth_data[2];
 
 static int ads7846_get_pendown_state_PB26(void)
 {
diff --git a/arch/avr32/boards/mimc200/setup.c b/arch/avr32/boards/mimc200/setup.c
index c4da5cba2dbf..05358aa5ef7d 100644
--- a/arch/avr32/boards/mimc200/setup.c
+++ b/arch/avr32/boards/mimc200/setup.c
@@ -86,7 +86,7 @@ struct eth_addr {
 	u8 addr[6];
 };
 static struct eth_addr __initdata hw_addr[2];
-static struct eth_platform_data __initdata eth_data[2];
+static struct macb_platform_data __initdata eth_data[2];
 
 static struct spi_eeprom eeprom_25lc010 = {
 		.name = "25lc010",
diff --git a/arch/avr32/mach-at32ap/at32ap700x.c b/arch/avr32/mach-at32ap/at32ap700x.c
index 7fbf0dcb9afe..402a7bb72669 100644
--- a/arch/avr32/mach-at32ap/at32ap700x.c
+++ b/arch/avr32/mach-at32ap/at32ap700x.c
@@ -1067,7 +1067,7 @@ void __init at32_setup_serial_console(unsigned int usart_id)
  * -------------------------------------------------------------------- */
 
 #ifdef CONFIG_CPU_AT32AP7000
-static struct eth_platform_data macb0_data;
+static struct macb_platform_data macb0_data;
 static struct resource macb0_resource[] = {
 	PBMEM(0xfff01800),
 	IRQ(25),
@@ -1076,7 +1076,7 @@ DEFINE_DEV_DATA(macb, 0);
 DEV_CLK(hclk, macb0, hsb, 8);
 DEV_CLK(pclk, macb0, pbb, 6);
 
-static struct eth_platform_data macb1_data;
+static struct macb_platform_data macb1_data;
 static struct resource macb1_resource[] = {
 	PBMEM(0xfff01c00),
 	IRQ(26),
@@ -1086,7 +1086,7 @@ DEV_CLK(hclk, macb1, hsb, 9);
 DEV_CLK(pclk, macb1, pbb, 7);
 
 struct platform_device *__init
-at32_add_device_eth(unsigned int id, struct eth_platform_data *data)
+at32_add_device_eth(unsigned int id, struct macb_platform_data *data)
 {
 	struct platform_device *pdev;
 	u32 pin_mask;
@@ -1163,7 +1163,7 @@ at32_add_device_eth(unsigned int id, struct eth_platform_data *data)
 		return NULL;
 	}
 
-	memcpy(pdev->dev.platform_data, data, sizeof(struct eth_platform_data));
+	memcpy(pdev->dev.platform_data, data, sizeof(struct macb_platform_data));
 	platform_device_register(pdev);
 
 	return pdev;
diff --git a/arch/avr32/mach-at32ap/include/mach/board.h b/arch/avr32/mach-at32ap/include/mach/board.h
index 5d7ffca7d69f..67b111ce332d 100644
--- a/arch/avr32/mach-at32ap/include/mach/board.h
+++ b/arch/avr32/mach-at32ap/include/mach/board.h
@@ -6,6 +6,7 @@
 
 #include <linux/types.h>
 #include <linux/serial.h>
+#include <linux/platform_data/macb.h>
 
 #define GPIO_PIN_NONE	(-1)
 
@@ -42,12 +43,8 @@ struct atmel_uart_data {
 void at32_map_usart(unsigned int hw_id, unsigned int line, int flags);
 struct platform_device *at32_add_device_usart(unsigned int id);
 
-struct eth_platform_data {
-	u32	phy_mask;
-	u8	is_rmii;
-};
 struct platform_device *
-at32_add_device_eth(unsigned int id, struct eth_platform_data *data);
+at32_add_device_eth(unsigned int id, struct macb_platform_data *data);
 
 struct spi_board_info;
 struct platform_device *
diff --git a/arch/blackfin/configs/BF518F-EZBRD_defconfig b/arch/blackfin/configs/BF518F-EZBRD_defconfig
index 5edcb58d6f73..0b7039cf07ff 100644
--- a/arch/blackfin/configs/BF518F-EZBRD_defconfig
+++ b/arch/blackfin/configs/BF518F-EZBRD_defconfig
@@ -80,7 +80,7 @@ CONFIG_I2C_CHARDEV=y
 CONFIG_I2C_BLACKFIN_TWI=y
 CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100
 CONFIG_SPI=y
-CONFIG_SPI_BFIN=y
+CONFIG_SPI_BFIN5XX=y
 CONFIG_GPIOLIB=y
 CONFIG_GPIO_SYSFS=y
 # CONFIG_HWMON is not set
diff --git a/arch/blackfin/configs/BF526-EZBRD_defconfig b/arch/blackfin/configs/BF526-EZBRD_defconfig
index 2e549572d4f5..5553205d7cbe 100644
--- a/arch/blackfin/configs/BF526-EZBRD_defconfig
+++ b/arch/blackfin/configs/BF526-EZBRD_defconfig
@@ -97,7 +97,7 @@ CONFIG_I2C_CHARDEV=m
 CONFIG_I2C_BLACKFIN_TWI=y
 CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100
 CONFIG_SPI=y
-CONFIG_SPI_BFIN=y
+CONFIG_SPI_BFIN5XX=y
 CONFIG_GPIOLIB=y
 CONFIG_GPIO_SYSFS=y
 CONFIG_WATCHDOG=y
diff --git a/arch/blackfin/configs/BF527-AD7160-EVAL_defconfig b/arch/blackfin/configs/BF527-AD7160-EVAL_defconfig
index ad0881ba30af..d95658fc3127 100644
--- a/arch/blackfin/configs/BF527-AD7160-EVAL_defconfig
+++ b/arch/blackfin/configs/BF527-AD7160-EVAL_defconfig
@@ -68,7 +68,7 @@ CONFIG_I2C_ALGOBIT=y
 CONFIG_I2C_BLACKFIN_TWI=y
 CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=400
 CONFIG_SPI=y
-CONFIG_SPI_BFIN=y
+CONFIG_SPI_BFIN5XX=y
 CONFIG_GPIOLIB=y
 CONFIG_GPIO_SYSFS=y
 # CONFIG_HWMON is not set
diff --git a/arch/blackfin/configs/BF527-EZKIT-V2_defconfig b/arch/blackfin/configs/BF527-EZKIT-V2_defconfig
index 8465b3e6b862..498f64a87050 100644
--- a/arch/blackfin/configs/BF527-EZKIT-V2_defconfig
+++ b/arch/blackfin/configs/BF527-EZKIT-V2_defconfig
@@ -105,7 +105,7 @@ CONFIG_I2C_CHARDEV=m
 CONFIG_I2C_BLACKFIN_TWI=y
 CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100
 CONFIG_SPI=y
-CONFIG_SPI_BFIN=y
+CONFIG_SPI_BFIN5XX=y
 CONFIG_GPIOLIB=y
 CONFIG_GPIO_SYSFS=y
 # CONFIG_HWMON is not set
diff --git a/arch/blackfin/configs/BF527-EZKIT_defconfig b/arch/blackfin/configs/BF527-EZKIT_defconfig
index 5e7321b26040..72e0317565ef 100644
--- a/arch/blackfin/configs/BF527-EZKIT_defconfig
+++ b/arch/blackfin/configs/BF527-EZKIT_defconfig
@@ -99,7 +99,7 @@ CONFIG_I2C_CHARDEV=m
 CONFIG_I2C_BLACKFIN_TWI=y
 CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100
 CONFIG_SPI=y
-CONFIG_SPI_BFIN=y
+CONFIG_SPI_BFIN5XX=y
 CONFIG_GPIOLIB=y
 CONFIG_GPIO_SYSFS=y
 # CONFIG_HWMON is not set
diff --git a/arch/blackfin/configs/BF533-EZKIT_defconfig b/arch/blackfin/configs/BF533-EZKIT_defconfig
index a7eb54bf3089..2f075e0b2624 100644
--- a/arch/blackfin/configs/BF533-EZKIT_defconfig
+++ b/arch/blackfin/configs/BF533-EZKIT_defconfig
@@ -81,7 +81,7 @@ CONFIG_SERIAL_BFIN_CONSOLE=y
 # CONFIG_LEGACY_PTYS is not set
 # CONFIG_HW_RANDOM is not set
 CONFIG_SPI=y
-CONFIG_SPI_BFIN=y
+CONFIG_SPI_BFIN5XX=y
 CONFIG_GPIOLIB=y
 CONFIG_GPIO_SYSFS=y
 # CONFIG_HWMON is not set
diff --git a/arch/blackfin/configs/BF533-STAMP_defconfig b/arch/blackfin/configs/BF533-STAMP_defconfig
index b90d3792ed52..ab38a82597b2 100644
--- a/arch/blackfin/configs/BF533-STAMP_defconfig
+++ b/arch/blackfin/configs/BF533-STAMP_defconfig
@@ -84,7 +84,7 @@ CONFIG_I2C=m
 CONFIG_I2C_CHARDEV=m
 CONFIG_I2C_GPIO=m
 CONFIG_SPI=y
-CONFIG_SPI_BFIN=y
+CONFIG_SPI_BFIN5XX=y
 CONFIG_GPIOLIB=y
 CONFIG_GPIO_SYSFS=y
 # CONFIG_HWMON is not set
diff --git a/arch/blackfin/configs/BF537-STAMP_defconfig b/arch/blackfin/configs/BF537-STAMP_defconfig
index 005362537a7b..5c802d6bbbc0 100644
--- a/arch/blackfin/configs/BF537-STAMP_defconfig
+++ b/arch/blackfin/configs/BF537-STAMP_defconfig
@@ -94,7 +94,7 @@ CONFIG_I2C_CHARDEV=m
 CONFIG_I2C_BLACKFIN_TWI=m
 CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100
 CONFIG_SPI=y
-CONFIG_SPI_BFIN=y
+CONFIG_SPI_BFIN5XX=y
 CONFIG_GPIOLIB=y
 CONFIG_GPIO_SYSFS=y
 # CONFIG_HWMON is not set
diff --git a/arch/blackfin/configs/BF538-EZKIT_defconfig b/arch/blackfin/configs/BF538-EZKIT_defconfig
index 580bf4296a14..972aa6263ad0 100644
--- a/arch/blackfin/configs/BF538-EZKIT_defconfig
+++ b/arch/blackfin/configs/BF538-EZKIT_defconfig
@@ -101,7 +101,7 @@ CONFIG_I2C=m
 CONFIG_I2C_BLACKFIN_TWI=m
 CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100
 CONFIG_SPI=y
-CONFIG_SPI_BFIN=y
+CONFIG_SPI_BFIN5XX=y
 CONFIG_GPIOLIB=y
 CONFIG_GPIO_SYSFS=y
 # CONFIG_HWMON is not set
diff --git a/arch/blackfin/configs/BF548-EZKIT_defconfig b/arch/blackfin/configs/BF548-EZKIT_defconfig
index 0e6d841b5d01..7a1e3bf2b04f 100644
--- a/arch/blackfin/configs/BF548-EZKIT_defconfig
+++ b/arch/blackfin/configs/BF548-EZKIT_defconfig
@@ -113,7 +113,7 @@ CONFIG_I2C_CHARDEV=y
 CONFIG_I2C_BLACKFIN_TWI=y
 CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100
 CONFIG_SPI=y
-CONFIG_SPI_BFIN=y
+CONFIG_SPI_BFIN5XX=y
 CONFIG_GPIOLIB=y
 CONFIG_GPIO_SYSFS=y
 # CONFIG_HWMON is not set
diff --git a/arch/blackfin/configs/BF561-ACVILON_defconfig b/arch/blackfin/configs/BF561-ACVILON_defconfig
index 77a27e31d6d1..0fdc4ecaa531 100644
--- a/arch/blackfin/configs/BF561-ACVILON_defconfig
+++ b/arch/blackfin/configs/BF561-ACVILON_defconfig
@@ -85,7 +85,7 @@ CONFIG_I2C=y
 CONFIG_I2C_CHARDEV=y
 CONFIG_I2C_PCA_PLATFORM=y
 CONFIG_SPI=y
-CONFIG_SPI_BFIN=y
+CONFIG_SPI_BFIN5XX=y
 CONFIG_SPI_SPIDEV=y
 CONFIG_GPIOLIB=y
 CONFIG_GPIO_SYSFS=y
diff --git a/arch/blackfin/configs/BF561-EZKIT-SMP_defconfig b/arch/blackfin/configs/BF561-EZKIT-SMP_defconfig
index f5ed34e12e0c..78adbbf39826 100644
--- a/arch/blackfin/configs/BF561-EZKIT-SMP_defconfig
+++ b/arch/blackfin/configs/BF561-EZKIT-SMP_defconfig
@@ -84,7 +84,7 @@ CONFIG_SERIAL_BFIN_CONSOLE=y
 # CONFIG_LEGACY_PTYS is not set
 # CONFIG_HW_RANDOM is not set
 CONFIG_SPI=y
-CONFIG_SPI_BFIN=y
+CONFIG_SPI_BFIN5XX=y
 CONFIG_GPIOLIB=y
 CONFIG_GPIO_SYSFS=y
 # CONFIG_HWMON is not set
diff --git a/arch/blackfin/configs/BF561-EZKIT_defconfig b/arch/blackfin/configs/BF561-EZKIT_defconfig
index d7ff2aee3fbc..d3cd0f561c84 100644
--- a/arch/blackfin/configs/BF561-EZKIT_defconfig
+++ b/arch/blackfin/configs/BF561-EZKIT_defconfig
@@ -86,7 +86,7 @@ CONFIG_SERIAL_BFIN_CONSOLE=y
 # CONFIG_LEGACY_PTYS is not set
 # CONFIG_HW_RANDOM is not set
 CONFIG_SPI=y
-CONFIG_SPI_BFIN=y
+CONFIG_SPI_BFIN5XX=y
 CONFIG_GPIOLIB=y
 CONFIG_GPIO_SYSFS=y
 # CONFIG_HWMON is not set
diff --git a/arch/blackfin/configs/BlackStamp_defconfig b/arch/blackfin/configs/BlackStamp_defconfig
index 85014319672c..7b982d0502ad 100644
--- a/arch/blackfin/configs/BlackStamp_defconfig
+++ b/arch/blackfin/configs/BlackStamp_defconfig
@@ -80,7 +80,7 @@ CONFIG_I2C=m
 CONFIG_I2C_CHARDEV=m
 CONFIG_I2C_GPIO=m
 CONFIG_SPI=y
-CONFIG_SPI_BFIN=y
+CONFIG_SPI_BFIN5XX=y
 CONFIG_SPI_SPIDEV=m
 # CONFIG_HWMON is not set
 CONFIG_WATCHDOG=y
diff --git a/arch/blackfin/configs/CM-BF527_defconfig b/arch/blackfin/configs/CM-BF527_defconfig
index dbf750cd2db8..c280a50e7943 100644
--- a/arch/blackfin/configs/CM-BF527_defconfig
+++ b/arch/blackfin/configs/CM-BF527_defconfig
@@ -88,7 +88,7 @@ CONFIG_I2C_CHARDEV=m
 CONFIG_I2C_BLACKFIN_TWI=m
 CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100
 CONFIG_SPI=y
-CONFIG_SPI_BFIN=y
+CONFIG_SPI_BFIN5XX=y
 CONFIG_GPIOLIB=y
 CONFIG_GPIO_SYSFS=y
 CONFIG_WATCHDOG=y
diff --git a/arch/blackfin/configs/CM-BF533_defconfig b/arch/blackfin/configs/CM-BF533_defconfig
index 07ffbdae34ee..c940a1e3ab36 100644
--- a/arch/blackfin/configs/CM-BF533_defconfig
+++ b/arch/blackfin/configs/CM-BF533_defconfig
@@ -57,7 +57,7 @@ CONFIG_SERIAL_BFIN_CONSOLE=y
 # CONFIG_LEGACY_PTYS is not set
 # CONFIG_HW_RANDOM is not set
 CONFIG_SPI=y
-CONFIG_SPI_BFIN=y
+CONFIG_SPI_BFIN5XX=y
 # CONFIG_HWMON is not set
 # CONFIG_USB_SUPPORT is not set
 CONFIG_MMC=y
diff --git a/arch/blackfin/configs/CM-BF537E_defconfig b/arch/blackfin/configs/CM-BF537E_defconfig
index 707cbf8a2590..2e47df77490f 100644
--- a/arch/blackfin/configs/CM-BF537E_defconfig
+++ b/arch/blackfin/configs/CM-BF537E_defconfig
@@ -78,7 +78,7 @@ CONFIG_SERIAL_BFIN_UART1=y
 # CONFIG_LEGACY_PTYS is not set
 # CONFIG_HW_RANDOM is not set
 CONFIG_SPI=y
-CONFIG_SPI_BFIN=y
+CONFIG_SPI_BFIN5XX=y
 CONFIG_GPIOLIB=y
 CONFIG_GPIO_SYSFS=y
 CONFIG_USB_GADGET=m
diff --git a/arch/blackfin/configs/CM-BF537U_defconfig b/arch/blackfin/configs/CM-BF537U_defconfig
index 4596935eadac..6da629ffc2f1 100644
--- a/arch/blackfin/configs/CM-BF537U_defconfig
+++ b/arch/blackfin/configs/CM-BF537U_defconfig
@@ -72,7 +72,7 @@ CONFIG_SERIAL_BFIN_UART1=y
 # CONFIG_LEGACY_PTYS is not set
 # CONFIG_HW_RANDOM is not set
 CONFIG_SPI=y
-CONFIG_SPI_BFIN=y
+CONFIG_SPI_BFIN5XX=y
 CONFIG_GPIOLIB=y
 CONFIG_GPIO_SYSFS=y
 CONFIG_USB_GADGET=y
diff --git a/arch/blackfin/configs/CM-BF548_defconfig b/arch/blackfin/configs/CM-BF548_defconfig
index 9f1d08401fca..349922be01f3 100644
--- a/arch/blackfin/configs/CM-BF548_defconfig
+++ b/arch/blackfin/configs/CM-BF548_defconfig
@@ -89,7 +89,7 @@ CONFIG_I2C=y
 CONFIG_I2C_CHARDEV=y
 CONFIG_I2C_BLACKFIN_TWI=y
 CONFIG_SPI=y
-CONFIG_SPI_BFIN=y
+CONFIG_SPI_BFIN5XX=y
 # CONFIG_HWMON is not set
 CONFIG_WATCHDOG=y
 CONFIG_BFIN_WDT=y
diff --git a/arch/blackfin/configs/CM-BF561_defconfig b/arch/blackfin/configs/CM-BF561_defconfig
index 6c7b21585a43..0456deaa2d6f 100644
--- a/arch/blackfin/configs/CM-BF561_defconfig
+++ b/arch/blackfin/configs/CM-BF561_defconfig
@@ -78,7 +78,7 @@ CONFIG_SERIAL_BFIN_CONSOLE=y
 # CONFIG_LEGACY_PTYS is not set
 # CONFIG_HW_RANDOM is not set
 CONFIG_SPI=y
-CONFIG_SPI_BFIN=y
+CONFIG_SPI_BFIN5XX=y
 CONFIG_GPIOLIB=y
 CONFIG_GPIO_SYSFS=y
 CONFIG_USB_GADGET=m
diff --git a/arch/blackfin/configs/DNP5370_defconfig b/arch/blackfin/configs/DNP5370_defconfig
index b192acfae386..89162d0fff9e 100644
--- a/arch/blackfin/configs/DNP5370_defconfig
+++ b/arch/blackfin/configs/DNP5370_defconfig
@@ -78,7 +78,7 @@ CONFIG_I2C=y
 CONFIG_I2C_CHARDEV=y
 CONFIG_I2C_BLACKFIN_TWI=y
 CONFIG_SPI=y
-CONFIG_SPI_BFIN=y
+CONFIG_SPI_BFIN5XX=y
 CONFIG_SPI_SPIDEV=y
 CONFIG_GPIOLIB=y
 CONFIG_GPIO_SYSFS=y
diff --git a/arch/blackfin/configs/H8606_defconfig b/arch/blackfin/configs/H8606_defconfig
index 06e9f497faed..a26436bf50ff 100644
--- a/arch/blackfin/configs/H8606_defconfig
+++ b/arch/blackfin/configs/H8606_defconfig
@@ -68,7 +68,7 @@ CONFIG_SERIAL_BFIN_CONSOLE=y
 # CONFIG_LEGACY_PTYS is not set
 # CONFIG_HW_RANDOM is not set
 CONFIG_SPI=y
-CONFIG_SPI_BFIN=y
+CONFIG_SPI_BFIN5XX=y
 CONFIG_SPI_SPIDEV=y
 CONFIG_WATCHDOG=y
 CONFIG_SOUND=m
diff --git a/arch/blackfin/configs/IP0X_defconfig b/arch/blackfin/configs/IP0X_defconfig
index 5e797cf72043..647991514ac9 100644
--- a/arch/blackfin/configs/IP0X_defconfig
+++ b/arch/blackfin/configs/IP0X_defconfig
@@ -70,7 +70,7 @@ CONFIG_SERIAL_BFIN_CONSOLE=y
 # CONFIG_LEGACY_PTYS is not set
 CONFIG_HW_RANDOM=y
 CONFIG_SPI=y
-CONFIG_SPI_BFIN=y
+CONFIG_SPI_BFIN5XX=y
 # CONFIG_HWMON is not set
 CONFIG_WATCHDOG=y
 CONFIG_USB=y
diff --git a/arch/blackfin/configs/PNAV-10_defconfig b/arch/blackfin/configs/PNAV-10_defconfig
index a566a2fe6b9b..8fd9b446d658 100644
--- a/arch/blackfin/configs/PNAV-10_defconfig
+++ b/arch/blackfin/configs/PNAV-10_defconfig
@@ -84,7 +84,7 @@ CONFIG_I2C_CHARDEV=y
 CONFIG_I2C_BLACKFIN_TWI=y
 CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100
 CONFIG_SPI=y
-CONFIG_SPI_BFIN=y
+CONFIG_SPI_BFIN5XX=y
 CONFIG_FB=y
 CONFIG_FIRMWARE_EDID=y
 CONFIG_BACKLIGHT_LCD_SUPPORT=y
diff --git a/arch/blackfin/configs/SRV1_defconfig b/arch/blackfin/configs/SRV1_defconfig
index 12e66cd7cdaa..0520c160230d 100644
--- a/arch/blackfin/configs/SRV1_defconfig
+++ b/arch/blackfin/configs/SRV1_defconfig
@@ -71,7 +71,7 @@ CONFIG_I2C_CHARDEV=y
 CONFIG_I2C_BLACKFIN_TWI=y
 CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100
 CONFIG_SPI=y
-CONFIG_SPI_BFIN=y
+CONFIG_SPI_BFIN5XX=y
 CONFIG_HWMON=m
 CONFIG_WATCHDOG=y
 CONFIG_BFIN_WDT=y
diff --git a/arch/blackfin/configs/TCM-BF518_defconfig b/arch/blackfin/configs/TCM-BF518_defconfig
index d496ae9a39b0..e4ed865b885e 100644
--- a/arch/blackfin/configs/TCM-BF518_defconfig
+++ b/arch/blackfin/configs/TCM-BF518_defconfig
@@ -92,7 +92,7 @@ CONFIG_I2C_CHARDEV=y
 CONFIG_I2C_BLACKFIN_TWI=y
 CONFIG_I2C_BLACKFIN_TWI_CLK_KHZ=100
 CONFIG_SPI=y
-CONFIG_SPI_BFIN=y
+CONFIG_SPI_BFIN5XX=y
 CONFIG_GPIOLIB=y
 CONFIG_GPIO_SYSFS=y
 # CONFIG_HWMON is not set
diff --git a/arch/blackfin/configs/TCM-BF537_defconfig b/arch/blackfin/configs/TCM-BF537_defconfig
index 65f642167a50..c1f45f15295c 100644
--- a/arch/blackfin/configs/TCM-BF537_defconfig
+++ b/arch/blackfin/configs/TCM-BF537_defconfig
@@ -70,7 +70,7 @@ CONFIG_SERIAL_BFIN_UART1=y
 # CONFIG_LEGACY_PTYS is not set
 # CONFIG_HW_RANDOM is not set
 CONFIG_SPI=y
-CONFIG_SPI_BFIN=y
+CONFIG_SPI_BFIN5XX=y
 # CONFIG_HWMON is not set
 CONFIG_WATCHDOG=y
 CONFIG_BFIN_WDT=y
diff --git a/arch/blackfin/include/asm/bfin_serial.h b/arch/blackfin/include/asm/bfin_serial.h
index ecacdf34768b..68bcc3d119b6 100644
--- a/arch/blackfin/include/asm/bfin_serial.h
+++ b/arch/blackfin/include/asm/bfin_serial.h
@@ -51,9 +51,6 @@ struct bfin_serial_port {
 #elif ANOMALY_05000363
 	unsigned int anomaly_threshold;
 #endif
-#ifdef CONFIG_SERIAL_BFIN_HARD_CTSRTS
-	int scts;
-#endif
 #if defined(CONFIG_SERIAL_BFIN_CTSRTS) || \
 	defined(CONFIG_SERIAL_BFIN_HARD_CTSRTS)
 	int cts_pin;
diff --git a/arch/blackfin/include/asm/cpu.h b/arch/blackfin/include/asm/cpu.h
index 05043786da21..e349631c8299 100644
--- a/arch/blackfin/include/asm/cpu.h
+++ b/arch/blackfin/include/asm/cpu.h
@@ -14,6 +14,9 @@ struct blackfin_cpudata {
 	struct cpu cpu;
 	unsigned int imemctl;
 	unsigned int dmemctl;
+#ifdef CONFIG_SMP
+	struct task_struct *idle;
+#endif
 };
 
 DECLARE_PER_CPU(struct blackfin_cpudata, cpu_data);
diff --git a/arch/blackfin/include/asm/smp.h b/arch/blackfin/include/asm/smp.h
index af6c0aa79bae..dc3d144b4bb5 100644
--- a/arch/blackfin/include/asm/smp.h
+++ b/arch/blackfin/include/asm/smp.h
@@ -37,7 +37,7 @@ extern unsigned long dcache_invld_count[NR_CPUS];
 #endif
 
 void smp_icache_flush_range_others(unsigned long start,
-				   unsigned long end);
+					unsigned long end);
 #ifdef CONFIG_HOTPLUG_CPU
 void coreb_die(void);
 void cpu_die(void);
@@ -46,4 +46,7 @@ int __cpu_disable(void);
 int __cpu_die(unsigned int cpu);
 #endif
 
+void smp_timer_broadcast(const struct cpumask *mask);
+
+
 #endif /* !__ASM_BLACKFIN_SMP_H */
diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c
index dfa2525a442d..d6102c86d037 100644
--- a/arch/blackfin/kernel/setup.c
+++ b/arch/blackfin/kernel/setup.c
@@ -828,10 +828,18 @@ static inline int __init get_mem_size(void)
 	u32 ddrctl = bfin_read_EBIU_DDRCTL1();
 	int ret = 0;
 	switch (ddrctl & 0xc0000) {
-		case DEVSZ_64:  ret = 64 / 8;
-		case DEVSZ_128: ret = 128 / 8;
-		case DEVSZ_256: ret = 256 / 8;
-		case DEVSZ_512: ret = 512 / 8;
+	case DEVSZ_64:
+		ret = 64 / 8;
+		break;
+	case DEVSZ_128:
+		ret = 128 / 8;
+		break;
+	case DEVSZ_256:
+		ret = 256 / 8;
+		break;
+	case DEVSZ_512:
+		ret = 512 / 8;
+		break;
 	}
 	switch (ddrctl & 0x30000) {
 		case DEVWD_4:  ret *= 2;
diff --git a/arch/blackfin/kernel/time-ts.c b/arch/blackfin/kernel/time-ts.c
index 1bcf3a3c57d8..d98f2d69b0c4 100644
--- a/arch/blackfin/kernel/time-ts.c
+++ b/arch/blackfin/kernel/time-ts.c
@@ -219,7 +219,7 @@ static void __init bfin_gptmr0_clockevent_init(struct clock_event_device *evt)
 
 #if defined(CONFIG_TICKSOURCE_CORETMR)
 /* per-cpu local core timer */
-static DEFINE_PER_CPU(struct clock_event_device, coretmr_events);
+DEFINE_PER_CPU(struct clock_event_device, coretmr_events);
 
 static int bfin_coretmr_set_next_event(unsigned long cycles,
 				struct clock_event_device *evt)
@@ -281,6 +281,7 @@ void bfin_coretmr_init(void)
 #ifdef CONFIG_CORE_TIMER_IRQ_L1
 __attribute__((l1_text))
 #endif
+
 irqreturn_t bfin_coretmr_interrupt(int irq, void *dev_id)
 {
 	int cpu = smp_processor_id();
@@ -306,6 +307,11 @@ void bfin_coretmr_clockevent_init(void)
 	unsigned int cpu = smp_processor_id();
 	struct clock_event_device *evt = &per_cpu(coretmr_events, cpu);
 
+#ifdef CONFIG_SMP
+	evt->broadcast = smp_timer_broadcast;
+#endif
+
+
 	evt->name = "bfin_core_timer";
 	evt->rating = 350;
 	evt->irq = -1;
diff --git a/arch/blackfin/mach-bf518/boards/ezbrd.c b/arch/blackfin/mach-bf518/boards/ezbrd.c
index d1c0c0cff3ef..a2d96d31bbf1 100644
--- a/arch/blackfin/mach-bf518/boards/ezbrd.c
+++ b/arch/blackfin/mach-bf518/boards/ezbrd.c
@@ -61,7 +61,7 @@ static struct physmap_flash_data ezbrd_flash_data = {
 
 static struct resource ezbrd_flash_resource = {
 	.start = 0x20000000,
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 	.end   = 0x202fffff,
 #else
 	.end   = 0x203fffff,
@@ -122,6 +122,8 @@ static struct bfin_mii_bus_platform_data bfin_mii_bus_data = {
 #if defined(CONFIG_NET_DSA_KSZ8893M) || defined(CONFIG_NET_DSA_KSZ8893M_MODULE)
 	.phy_mask = 0xfff7, /* Only probe the port phy connect to the on chip MAC */
 #endif
+	.vlan1_mask = 1,
+	.vlan2_mask = 2,
 };
 
 static struct platform_device bfin_mii_bus = {
@@ -292,7 +294,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 };
 
 /* SPI controller data */
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 /* SPI (0) */
 static struct bfin5xx_spi_master bfin_spi0_info = {
 	.num_chipselect = 6,
@@ -715,7 +717,7 @@ static struct platform_device *stamp_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 	&bfin_spi0_device,
 	&bfin_spi1_device,
 #endif
@@ -777,7 +779,7 @@ static int __init ezbrd_init(void)
 	spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
 	/* setup BF518-EZBRD GPIO pin PG11 to AMS2, PG15 to AMS3. */
 	peripheral_request(P_AMS2, "ParaFlash");
-#if !defined(CONFIG_SPI_BFIN) && !defined(CONFIG_SPI_BFIN_MODULE)
+#if !defined(CONFIG_SPI_BFIN5XX) && !defined(CONFIG_SPI_BFIN5XX_MODULE)
 	peripheral_request(P_AMS3, "ParaFlash");
 #endif
 	return 0;
diff --git a/arch/blackfin/mach-bf518/boards/tcm-bf518.c b/arch/blackfin/mach-bf518/boards/tcm-bf518.c
index 5470bf89e52e..f271310f739d 100644
--- a/arch/blackfin/mach-bf518/boards/tcm-bf518.c
+++ b/arch/blackfin/mach-bf518/boards/tcm-bf518.c
@@ -228,7 +228,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 };
 
 /* SPI controller data */
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 /* SPI (0) */
 static struct bfin5xx_spi_master bfin_spi0_info = {
 	.num_chipselect = 6,
@@ -635,7 +635,7 @@ static struct platform_device *tcm_devices[] __initdata = {
 	&bfin_mac_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 	&bfin_spi0_device,
 	&bfin_spi1_device,
 #endif
diff --git a/arch/blackfin/mach-bf527/boards/ad7160eval.c b/arch/blackfin/mach-bf527/boards/ad7160eval.c
index 5bc6938157ad..c8d5d2b7c732 100644
--- a/arch/blackfin/mach-bf527/boards/ad7160eval.c
+++ b/arch/blackfin/mach-bf527/boards/ad7160eval.c
@@ -334,7 +334,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 #endif
 };
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 /* SPI controller data */
 static struct bfin5xx_spi_master bfin_spi0_info = {
 	.num_chipselect = MAX_CTRL_CS + MAX_BLACKFIN_GPIOS,
@@ -744,7 +744,7 @@ static struct platform_device *stamp_devices[] __initdata = {
 	&bfin_mac_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 	&bfin_spi0_device,
 #endif
 
diff --git a/arch/blackfin/mach-bf527/boards/cm_bf527.c b/arch/blackfin/mach-bf527/boards/cm_bf527.c
index cd289698b4dd..7330607856e9 100644
--- a/arch/blackfin/mach-bf527/boards/cm_bf527.c
+++ b/arch/blackfin/mach-bf527/boards/cm_bf527.c
@@ -444,7 +444,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 #endif
 };
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 /* SPI controller data */
 static struct bfin5xx_spi_master bfin_spi0_info = {
 	.num_chipselect = 8,
@@ -893,7 +893,7 @@ static struct platform_device *cmbf527_devices[] __initdata = {
 	&net2272_bfin_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 	&bfin_spi0_device,
 #endif
 
diff --git a/arch/blackfin/mach-bf527/boards/ezbrd.c b/arch/blackfin/mach-bf527/boards/ezbrd.c
index 9f792eafd1cc..db3ecfce8306 100644
--- a/arch/blackfin/mach-bf527/boards/ezbrd.c
+++ b/arch/blackfin/mach-bf527/boards/ezbrd.c
@@ -371,7 +371,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 #endif
 };
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 /* SPI controller data */
 static struct bfin5xx_spi_master bfin_spi0_info = {
 	.num_chipselect = 8,
@@ -776,7 +776,7 @@ static struct platform_device *stamp_devices[] __initdata = {
 	&bfin_mac_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 	&bfin_spi0_device,
 #endif
 
diff --git a/arch/blackfin/mach-bf527/boards/ezkit.c b/arch/blackfin/mach-bf527/boards/ezkit.c
index 3ecafff5d2ef..dfdd8e6bac72 100644
--- a/arch/blackfin/mach-bf527/boards/ezkit.c
+++ b/arch/blackfin/mach-bf527/boards/ezkit.c
@@ -664,7 +664,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 #endif
 };
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 /* SPI controller data */
 static struct bfin5xx_spi_master bfin_spi0_info = {
 	.num_chipselect = 8,
@@ -1189,7 +1189,7 @@ static struct platform_device *stamp_devices[] __initdata = {
 	&net2272_bfin_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 	&bfin_spi0_device,
 #endif
 
diff --git a/arch/blackfin/mach-bf527/boards/tll6527m.c b/arch/blackfin/mach-bf527/boards/tll6527m.c
index 3a92c4318d2d..360e97fc5293 100644
--- a/arch/blackfin/mach-bf527/boards/tll6527m.c
+++ b/arch/blackfin/mach-bf527/boards/tll6527m.c
@@ -448,7 +448,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 #endif
 };
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 /* SPI controller data */
 static struct bfin5xx_spi_master bfin_spi0_info = {
 	.num_chipselect = EXP_GPIO_SPISEL_BASE + 8 + MAX_CTRL_CS,
@@ -831,7 +831,7 @@ static struct platform_device *tll6527m_devices[] __initdata = {
 	&bfin_mac_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 	&bfin_spi0_device,
 #endif
 
diff --git a/arch/blackfin/mach-bf533/boards/H8606.c b/arch/blackfin/mach-bf533/boards/H8606.c
index 47cadd316e76..6cb7b3ed9b3d 100644
--- a/arch/blackfin/mach-bf533/boards/H8606.c
+++ b/arch/blackfin/mach-bf533/boards/H8606.c
@@ -125,7 +125,7 @@ static struct platform_device net2272_bfin_device = {
 };
 #endif
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 /* all SPI peripherals info goes here */
 
 #if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
@@ -398,7 +398,7 @@ static struct platform_device *h8606_devices[] __initdata = {
 	&net2272_bfin_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 	&bfin_spi0_device,
 #endif
 
@@ -428,7 +428,7 @@ static int __init H8606_init(void)
 	printk(KERN_INFO "HV Sistemas H8606 board support by http://www.hvsistemas.com\n");
 	printk(KERN_INFO "%s(): registering device resources\n", __func__);
 	platform_add_devices(h8606_devices, ARRAY_SIZE(h8606_devices));
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 	spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
 #endif
 	return 0;
diff --git a/arch/blackfin/mach-bf533/boards/blackstamp.c b/arch/blackfin/mach-bf533/boards/blackstamp.c
index 18817d57c7a1..de44a3765e59 100644
--- a/arch/blackfin/mach-bf533/boards/blackstamp.c
+++ b/arch/blackfin/mach-bf533/boards/blackstamp.c
@@ -146,7 +146,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 #endif
 };
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 /* SPI (0) */
 static struct resource bfin_spi0_resource[] = {
 	[0] = {
@@ -422,7 +422,7 @@ static struct platform_device *stamp_devices[] __initdata = {
 #endif
 
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 	&bfin_spi0_device,
 #endif
 
diff --git a/arch/blackfin/mach-bf533/boards/cm_bf533.c b/arch/blackfin/mach-bf533/boards/cm_bf533.c
index 2c8f30ef6a7b..fe47e048c4e6 100644
--- a/arch/blackfin/mach-bf533/boards/cm_bf533.c
+++ b/arch/blackfin/mach-bf533/boards/cm_bf533.c
@@ -29,7 +29,7 @@
  */
 const char bfin_board_name[] = "Bluetechnix CM BF533";
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 /* all SPI peripherals info goes here */
 #if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
 static struct mtd_partition bfin_spi_flash_partitions[] = {
@@ -536,7 +536,7 @@ static struct platform_device *cm_bf533_devices[] __initdata = {
 	&net2272_bfin_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 	&bfin_spi0_device,
 #endif
 
@@ -549,7 +549,7 @@ static int __init cm_bf533_init(void)
 {
 	printk(KERN_INFO "%s(): registering device resources\n", __func__);
 	platform_add_devices(cm_bf533_devices, ARRAY_SIZE(cm_bf533_devices));
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 	spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
 #endif
 	return 0;
diff --git a/arch/blackfin/mach-bf533/boards/ezkit.c b/arch/blackfin/mach-bf533/boards/ezkit.c
index 144556e14499..07811c209b9d 100644
--- a/arch/blackfin/mach-bf533/boards/ezkit.c
+++ b/arch/blackfin/mach-bf533/boards/ezkit.c
@@ -245,7 +245,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 #endif
 };
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 /* SPI (0) */
 static struct resource bfin_spi0_resource[] = {
 	[0] = {
@@ -484,7 +484,7 @@ static struct platform_device *ezkit_devices[] __initdata = {
 	&smc91x_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 	&bfin_spi0_device,
 #endif
 
diff --git a/arch/blackfin/mach-bf533/boards/ip0x.c b/arch/blackfin/mach-bf533/boards/ip0x.c
index b597d4e50d58..e303dae4e2d9 100644
--- a/arch/blackfin/mach-bf533/boards/ip0x.c
+++ b/arch/blackfin/mach-bf533/boards/ip0x.c
@@ -104,7 +104,7 @@ static struct platform_device dm9000_device2 = {
 #endif
 
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 /* all SPI peripherals info goes here */
 
 #if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
@@ -270,7 +270,7 @@ static struct platform_device *ip0x_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 	&spi_bfin_master_device,
 #endif
 
diff --git a/arch/blackfin/mach-bf533/boards/stamp.c b/arch/blackfin/mach-bf533/boards/stamp.c
index 2afd02e14bd1..ce88a7165b62 100644
--- a/arch/blackfin/mach-bf533/boards/stamp.c
+++ b/arch/blackfin/mach-bf533/boards/stamp.c
@@ -219,9 +219,10 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 	},
 #endif
 
-#if defined(CONFIG_SND_BF5XX_SOC_AD183X) || defined(CONFIG_SND_BF5XX_SOC_AD183X_MODULE)
+#if defined(CONFIG_SND_BF5XX_SOC_AD1836) || \
+	defined(CONFIG_SND_BF5XX_SOC_AD1836_MODULE)
 	{
-		.modalias = "ad183x",
+		.modalias = "ad1836",
 		.max_speed_hz = 3125000,     /* max spi clock (SCK) speed in HZ */
 		.bus_num = 0,
 		.chip_select = 4,
@@ -251,7 +252,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 #endif
 };
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 /* SPI (0) */
 static struct resource bfin_spi0_resource[] = {
 	[0] = {
@@ -471,7 +472,7 @@ static struct i2c_gpio_platform_data i2c_gpio_data = {
 	.scl_pin		= GPIO_PF3,
 	.sda_is_open_drain	= 0,
 	.scl_is_open_drain	= 0,
-	.udelay			= 40,
+	.udelay			= 10,
 };
 
 static struct platform_device i2c_gpio_device = {
@@ -540,27 +541,150 @@ static struct platform_device bfin_dpmc = {
 	},
 };
 
+#if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE) || \
+	defined(CONFIG_SND_BF5XX_TDM) || defined(CONFIG_SND_BF5XX_TDM_MODULE) \
+	|| defined(CONFIG_SND_BF5XX_AC97) || \
+	defined(CONFIG_SND_BF5XX_AC97_MODULE)
+
+#include <asm/bfin_sport.h>
+
+#define SPORT_REQ(x) \
+	[x] = {P_SPORT##x##_TFS, P_SPORT##x##_DTPRI, P_SPORT##x##_TSCLK, \
+		P_SPORT##x##_RFS, P_SPORT##x##_DRPRI, P_SPORT##x##_RSCLK, 0}
+
+static const u16 bfin_snd_pin[][7] = {
+	SPORT_REQ(0),
+	SPORT_REQ(1),
+};
+
+static struct bfin_snd_platform_data bfin_snd_data[] = {
+	{
+		.pin_req = &bfin_snd_pin[0][0],
+	},
+	{
+		.pin_req = &bfin_snd_pin[1][0],
+	},
+};
+
+#define BFIN_SND_RES(x) \
+	[x] = { \
+		{ \
+			.start = SPORT##x##_TCR1, \
+			.end = SPORT##x##_TCR1, \
+			.flags = IORESOURCE_MEM \
+		}, \
+		{ \
+			.start = CH_SPORT##x##_RX, \
+			.end = CH_SPORT##x##_RX, \
+			.flags = IORESOURCE_DMA, \
+		}, \
+		{ \
+			.start = CH_SPORT##x##_TX, \
+			.end = CH_SPORT##x##_TX, \
+			.flags = IORESOURCE_DMA, \
+		}, \
+		{ \
+			.start = IRQ_SPORT##x##_ERROR, \
+			.end = IRQ_SPORT##x##_ERROR, \
+			.flags = IORESOURCE_IRQ, \
+		} \
+	}
+
+static struct resource bfin_snd_resources[][4] = {
+	BFIN_SND_RES(0),
+	BFIN_SND_RES(1),
+};
+#endif
+
 #if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE)
+static struct platform_device bfin_i2s_pcm = {
+	.name = "bfin-i2s-pcm-audio",
+	.id = -1,
+};
+#endif
+
+#if defined(CONFIG_SND_BF5XX_TDM) || defined(CONFIG_SND_BF5XX_TDM_MODULE)
+static struct platform_device bfin_tdm_pcm = {
+	.name = "bfin-tdm-pcm-audio",
+	.id = -1,
+};
+#endif
+
+#if defined(CONFIG_SND_BF5XX_AC97) || defined(CONFIG_SND_BF5XX_AC97_MODULE)
+static struct platform_device bfin_ac97_pcm = {
+	.name = "bfin-ac97-pcm-audio",
+	.id = -1,
+};
+#endif
+
+#if defined(CONFIG_SND_BF5XX_SOC_AD73311) || \
+	defined(CONFIG_SND_BF5XX_SOC_AD73311_MODULE)
+static const unsigned ad73311_gpio[] = {
+	GPIO_PF4,
+};
+
+static struct platform_device bfin_ad73311_machine = {
+	.name = "bfin-snd-ad73311",
+	.id = 1,
+	.dev = {
+		.platform_data = (void *)ad73311_gpio,
+	},
+};
+#endif
+
+#if defined(CONFIG_SND_SOC_AD73311) || defined(CONFIG_SND_SOC_AD73311_MODULE)
+static struct platform_device bfin_ad73311_codec_device = {
+	.name = "ad73311",
+	.id = -1,
+};
+#endif
+
+#if defined(CONFIG_SND_SOC_AD74111) || defined(CONFIG_SND_SOC_AD74111_MODULE)
+static struct platform_device bfin_ad74111_codec_device = {
+	.name = "ad74111",
+	.id = -1,
+};
+#endif
+
+#if defined(CONFIG_SND_BF5XX_SOC_I2S) || \
+	defined(CONFIG_SND_BF5XX_SOC_I2S_MODULE)
 static struct platform_device bfin_i2s = {
 	.name = "bfin-i2s",
 	.id = CONFIG_SND_BF5XX_SPORT_NUM,
-	/* TODO: add platform data here */
+	.num_resources =
+		ARRAY_SIZE(bfin_snd_resources[CONFIG_SND_BF5XX_SPORT_NUM]),
+	.resource = bfin_snd_resources[CONFIG_SND_BF5XX_SPORT_NUM],
+	.dev = {
+		.platform_data = &bfin_snd_data[CONFIG_SND_BF5XX_SPORT_NUM],
+	},
 };
 #endif
 
-#if defined(CONFIG_SND_BF5XX_TDM) || defined(CONFIG_SND_BF5XX_TDM_MODULE)
+#if defined(CONFIG_SND_BF5XX_SOC_TDM) || \
+	defined(CONFIG_SND_BF5XX_SOC_TDM_MODULE)
 static struct platform_device bfin_tdm = {
 	.name = "bfin-tdm",
 	.id = CONFIG_SND_BF5XX_SPORT_NUM,
-	/* TODO: add platform data here */
+	.num_resources =
+		ARRAY_SIZE(bfin_snd_resources[CONFIG_SND_BF5XX_SPORT_NUM]),
+	.resource = bfin_snd_resources[CONFIG_SND_BF5XX_SPORT_NUM],
+	.dev = {
+		.platform_data = &bfin_snd_data[CONFIG_SND_BF5XX_SPORT_NUM],
+	},
 };
 #endif
 
-#if defined(CONFIG_SND_BF5XX_AC97) || defined(CONFIG_SND_BF5XX_AC97_MODULE)
+#if defined(CONFIG_SND_BF5XX_SOC_AC97) || \
+	defined(CONFIG_SND_BF5XX_SOC_AC97_MODULE)
 static struct platform_device bfin_ac97 = {
 	.name = "bfin-ac97",
 	.id = CONFIG_SND_BF5XX_SPORT_NUM,
-	/* TODO: add platform data here */
+	.num_resources =
+		ARRAY_SIZE(bfin_snd_resources[CONFIG_SND_BF5XX_SPORT_NUM]),
+	.resource = bfin_snd_resources[CONFIG_SND_BF5XX_SPORT_NUM],
+	.dev = {
+		.platform_data = &bfin_snd_data[CONFIG_SND_BF5XX_SPORT_NUM],
+	},
 };
 #endif
 
@@ -580,7 +704,7 @@ static struct platform_device *stamp_devices[] __initdata = {
 	&net2272_bfin_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 	&bfin_spi0_device,
 #endif
 
@@ -596,7 +720,8 @@ static struct platform_device *stamp_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_SERIAL_BFIN_SPORT) || defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
+#if defined(CONFIG_SERIAL_BFIN_SPORT) || \
+	defined(CONFIG_SERIAL_BFIN_SPORT_MODULE)
 #ifdef CONFIG_SERIAL_BFIN_SPORT0_UART
 	&bfin_sport0_uart_device,
 #endif
@@ -618,14 +743,42 @@ static struct platform_device *stamp_devices[] __initdata = {
 #endif
 
 #if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE)
-	&bfin_i2s,
+	&bfin_i2s_pcm,
 #endif
 
 #if defined(CONFIG_SND_BF5XX_TDM) || defined(CONFIG_SND_BF5XX_TDM_MODULE)
-	&bfin_tdm,
+	&bfin_tdm_pcm,
 #endif
 
 #if defined(CONFIG_SND_BF5XX_AC97) || defined(CONFIG_SND_BF5XX_AC97_MODULE)
+	&bfin_ac97_pcm,
+#endif
+
+#if defined(CONFIG_SND_BF5XX_SOC_AD73311) || \
+	defined(CONFIG_SND_BF5XX_SOC_AD73311_MODULE)
+	&bfin_ad73311_machine,
+#endif
+
+#if defined(CONFIG_SND_SOC_AD73311) || defined(CONFIG_SND_SOC_AD73311_MODULE)
+	&bfin_ad73311_codec_device,
+#endif
+
+#if defined(CONFIG_SND_SOC_AD74111) || defined(CONFIG_SND_SOC_AD74111_MODULE)
+	&bfin_ad74111_codec_device,
+#endif
+
+#if defined(CONFIG_SND_BF5XX_SOC_I2S) || \
+	defined(CONFIG_SND_BF5XX_SOC_I2S_MODULE)
+	&bfin_i2s,
+#endif
+
+#if defined(CONFIG_SND_BF5XX_SOC_TDM) || \
+	defined(CONFIG_SND_BF5XX_SOC_TDM_MODULE)
+	&bfin_tdm,
+#endif
+
+#if defined(CONFIG_SND_BF5XX_SOC_AC97) || \
+	defined(CONFIG_SND_BF5XX_SOC_AC97_MODULE)
 	&bfin_ac97,
 #endif
 };
diff --git a/arch/blackfin/mach-bf537/boards/cm_bf537e.c b/arch/blackfin/mach-bf537/boards/cm_bf537e.c
index 604a430038e1..0d4a2f61a973 100644
--- a/arch/blackfin/mach-bf537/boards/cm_bf537e.c
+++ b/arch/blackfin/mach-bf537/boards/cm_bf537e.c
@@ -31,7 +31,7 @@
  */
 const char bfin_board_name[] = "Bluetechnix CM BF537E";
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 /* all SPI peripherals info goes here */
 
 #if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
@@ -735,7 +735,7 @@ static struct platform_device *cm_bf537e_devices[] __initdata = {
 	&net2272_bfin_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 	&bfin_spi0_device,
 #endif
 
@@ -770,7 +770,7 @@ static int __init cm_bf537e_init(void)
 {
 	printk(KERN_INFO "%s(): registering device resources\n", __func__);
 	platform_add_devices(cm_bf537e_devices, ARRAY_SIZE(cm_bf537e_devices));
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 	spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
 #endif
 
diff --git a/arch/blackfin/mach-bf537/boards/cm_bf537u.c b/arch/blackfin/mach-bf537/boards/cm_bf537u.c
index d916b46a44fe..f5536982706c 100644
--- a/arch/blackfin/mach-bf537/boards/cm_bf537u.c
+++ b/arch/blackfin/mach-bf537/boards/cm_bf537u.c
@@ -32,7 +32,7 @@
  */
 const char bfin_board_name[] = "Bluetechnix CM BF537U";
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 /* all SPI peripherals info goes here */
 
 #if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
@@ -700,7 +700,7 @@ static struct platform_device *cm_bf537u_devices[] __initdata = {
 	&net2272_bfin_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 	&bfin_spi0_device,
 #endif
 
@@ -747,7 +747,7 @@ static int __init cm_bf537u_init(void)
 {
 	printk(KERN_INFO "%s(): registering device resources\n", __func__);
 	platform_add_devices(cm_bf537u_devices, ARRAY_SIZE(cm_bf537u_devices));
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 	spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
 #endif
 
diff --git a/arch/blackfin/mach-bf537/boards/dnp5370.c b/arch/blackfin/mach-bf537/boards/dnp5370.c
index 5f307228be63..11dadeb33d79 100644
--- a/arch/blackfin/mach-bf537/boards/dnp5370.c
+++ b/arch/blackfin/mach-bf537/boards/dnp5370.c
@@ -125,7 +125,7 @@ static struct platform_device asmb_flash_device = {
 };
 #endif
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 
 #if defined(CONFIG_MMC_SPI) || defined(CONFIG_MMC_SPI_MODULE)
 
@@ -370,7 +370,7 @@ static struct platform_device *dnp5370_devices[] __initdata = {
 	&bfin_mac_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 	&spi_bfin_master_device,
 #endif
 
diff --git a/arch/blackfin/mach-bf537/boards/minotaur.c b/arch/blackfin/mach-bf537/boards/minotaur.c
index 3901dd093b90..d2d71282618f 100644
--- a/arch/blackfin/mach-bf537/boards/minotaur.c
+++ b/arch/blackfin/mach-bf537/boards/minotaur.c
@@ -121,7 +121,7 @@ static struct platform_device net2272_bfin_device = {
 };
 #endif
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 /* all SPI peripherals info goes here */
 
 #if defined(CONFIG_MTD_M25P80) \
@@ -496,7 +496,7 @@ static struct platform_device *minotaur_devices[] __initdata = {
 	&net2272_bfin_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 	&bfin_spi0_device,
 #endif
 
@@ -537,7 +537,7 @@ static int __init minotaur_init(void)
 {
 	printk(KERN_INFO "%s(): registering device resources\n", __func__);
 	platform_add_devices(minotaur_devices, ARRAY_SIZE(minotaur_devices));
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 	spi_register_board_info(bfin_spi_board_info,
 				ARRAY_SIZE(bfin_spi_board_info));
 #endif
diff --git a/arch/blackfin/mach-bf537/boards/pnav10.c b/arch/blackfin/mach-bf537/boards/pnav10.c
index aebd31c845f0..6fd84709fc68 100644
--- a/arch/blackfin/mach-bf537/boards/pnav10.c
+++ b/arch/blackfin/mach-bf537/boards/pnav10.c
@@ -154,7 +154,7 @@ static struct platform_device net2272_bfin_device = {
 };
 #endif
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 /* all SPI peripherals info goes here */
 
 #if defined(CONFIG_MTD_M25P80) \
@@ -477,7 +477,7 @@ static struct platform_device *stamp_devices[] __initdata = {
 	&net2272_bfin_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 	&bfin_spi0_device,
 #endif
 
@@ -508,7 +508,7 @@ static int __init pnav_init(void)
 {
 	printk(KERN_INFO "%s(): registering device resources\n", __func__);
 	platform_add_devices(stamp_devices, ARRAY_SIZE(stamp_devices));
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 	spi_register_board_info(bfin_spi_board_info,
 				ARRAY_SIZE(bfin_spi_board_info));
 #endif
diff --git a/arch/blackfin/mach-bf537/boards/stamp.c b/arch/blackfin/mach-bf537/boards/stamp.c
index 7fbb0bbf8676..2221173e489e 100644
--- a/arch/blackfin/mach-bf537/boards/stamp.c
+++ b/arch/blackfin/mach-bf537/boards/stamp.c
@@ -1420,7 +1420,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 #endif
 };
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 /* SPI controller data */
 static struct bfin5xx_spi_master bfin_spi0_info = {
 	.num_chipselect = MAX_CTRL_CS + MAX_BLACKFIN_GPIOS,
@@ -1462,7 +1462,7 @@ static struct platform_device bfin_spi0_device = {
 
 /* SPORT SPI controller data */
 static struct bfin5xx_spi_master bfin_sport_spi0_info = {
-	.num_chipselect = 1, /* master only supports one device */
+	.num_chipselect = MAX_BLACKFIN_GPIOS,
 	.enable_dma = 0,  /* master don't support DMA */
 	.pin_req = {P_SPORT0_DTPRI, P_SPORT0_TSCLK, P_SPORT0_DRPRI,
 		P_SPORT0_RSCLK, P_SPORT0_TFS, P_SPORT0_RFS, 0},
@@ -1492,7 +1492,7 @@ static struct platform_device bfin_sport_spi0_device = {
 };
 
 static struct bfin5xx_spi_master bfin_sport_spi1_info = {
-	.num_chipselect = 1, /* master only supports one device */
+	.num_chipselect = MAX_BLACKFIN_GPIOS,
 	.enable_dma = 0,  /* master don't support DMA */
 	.pin_req = {P_SPORT1_DTPRI, P_SPORT1_TSCLK, P_SPORT1_DRPRI,
 		P_SPORT1_RSCLK, P_SPORT1_TFS, P_SPORT1_RFS, 0},
@@ -1558,6 +1558,71 @@ static struct platform_device bfin_lq035q1_device = {
 };
 #endif
 
+#if defined(CONFIG_VIDEO_BLACKFIN_CAPTURE) \
+	|| defined(CONFIG_VIDEO_BLACKFIN_CAPTURE_MODULE)
+#include <linux/videodev2.h>
+#include <media/blackfin/bfin_capture.h>
+#include <media/blackfin/ppi.h>
+
+static const unsigned short ppi_req[] = {
+	P_PPI0_D0, P_PPI0_D1, P_PPI0_D2, P_PPI0_D3,
+	P_PPI0_D4, P_PPI0_D5, P_PPI0_D6, P_PPI0_D7,
+	P_PPI0_CLK, P_PPI0_FS1, P_PPI0_FS2,
+	0,
+};
+
+static const struct ppi_info ppi_info = {
+	.type = PPI_TYPE_PPI,
+	.dma_ch = CH_PPI,
+	.irq_err = IRQ_PPI_ERROR,
+	.base = (void __iomem *)PPI_CONTROL,
+	.pin_req = ppi_req,
+};
+
+#if defined(CONFIG_VIDEO_VS6624) \
+	|| defined(CONFIG_VIDEO_VS6624_MODULE)
+static struct v4l2_input vs6624_inputs[] = {
+	{
+		.index = 0,
+		.name = "Camera",
+		.type = V4L2_INPUT_TYPE_CAMERA,
+		.std = V4L2_STD_UNKNOWN,
+	},
+};
+
+static struct bcap_route vs6624_routes[] = {
+	{
+		.input = 0,
+		.output = 0,
+	},
+};
+
+static const unsigned vs6624_ce_pin = GPIO_PF10;
+
+static struct bfin_capture_config bfin_capture_data = {
+	.card_name = "BF537",
+	.inputs = vs6624_inputs,
+	.num_inputs = ARRAY_SIZE(vs6624_inputs),
+	.routes = vs6624_routes,
+	.i2c_adapter_id = 0,
+	.board_info = {
+		.type = "vs6624",
+		.addr = 0x10,
+		.platform_data = (void *)&vs6624_ce_pin,
+	},
+	.ppi_info = &ppi_info,
+	.ppi_control = (PACK_EN | DLEN_8 | XFR_TYPE | 0x0020),
+};
+#endif
+
+static struct platform_device bfin_capture_device = {
+	.name = "bfin_capture",
+	.dev = {
+		.platform_data = &bfin_capture_data,
+	},
+};
+#endif
+
 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
 #ifdef CONFIG_SERIAL_BFIN_UART0
 static struct resource bfin_uart0_resources[] = {
@@ -2716,7 +2781,7 @@ static struct platform_device *stamp_devices[] __initdata = {
 	&net2272_bfin_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 	&bfin_spi0_device,
 #endif
 
@@ -2733,6 +2798,11 @@ static struct platform_device *stamp_devices[] __initdata = {
 	&bfin_lq035q1_device,
 #endif
 
+#if defined(CONFIG_VIDEO_BLACKFIN_CAPTURE) \
+	|| defined(CONFIG_VIDEO_BLACKFIN_CAPTURE_MODULE)
+	&bfin_capture_device,
+#endif
+
 #if defined(CONFIG_SERIAL_BFIN) || defined(CONFIG_SERIAL_BFIN_MODULE)
 #ifdef CONFIG_SERIAL_BFIN_UART0
 	&bfin_uart0_device,
diff --git a/arch/blackfin/mach-bf537/boards/tcm_bf537.c b/arch/blackfin/mach-bf537/boards/tcm_bf537.c
index 6917ce2fa55e..988517671a5d 100644
--- a/arch/blackfin/mach-bf537/boards/tcm_bf537.c
+++ b/arch/blackfin/mach-bf537/boards/tcm_bf537.c
@@ -32,7 +32,7 @@
  */
 const char bfin_board_name[] = "Bluetechnix TCM BF537";
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 /* all SPI peripherals info goes here */
 
 #if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
@@ -702,7 +702,7 @@ static struct platform_device *cm_bf537_devices[] __initdata = {
 	&net2272_bfin_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 	&bfin_spi0_device,
 #endif
 
@@ -737,7 +737,7 @@ static int __init tcm_bf537_init(void)
 {
 	printk(KERN_INFO "%s(): registering device resources\n", __func__);
 	platform_add_devices(cm_bf537_devices, ARRAY_SIZE(cm_bf537_devices));
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 	spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
 #endif
 
diff --git a/arch/blackfin/mach-bf538/boards/ezkit.c b/arch/blackfin/mach-bf538/boards/ezkit.c
index 8356eb599f19..1633a6f306c0 100644
--- a/arch/blackfin/mach-bf538/boards/ezkit.c
+++ b/arch/blackfin/mach-bf538/boards/ezkit.c
@@ -490,7 +490,7 @@ static struct platform_device smc91x_device = {
 };
 #endif
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 /* all SPI peripherals info goes here */
 #if defined(CONFIG_MTD_M25P80) \
 	|| defined(CONFIG_MTD_M25P80_MODULE)
@@ -874,7 +874,7 @@ static struct platform_device *cm_bf538_devices[] __initdata = {
 #endif
 #endif
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 	&bf538_spi_master0,
 	&bf538_spi_master1,
 	&bf538_spi_master2,
@@ -938,7 +938,7 @@ static int __init ezkit_init(void)
 	printk(KERN_INFO "%s(): registering device resources\n", __func__);
 	platform_add_devices(cm_bf538_devices, ARRAY_SIZE(cm_bf538_devices));
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 	spi_register_board_info(bf538_spi_board_info,
 			ARRAY_SIZE(bf538_spi_board_info));
 #endif
diff --git a/arch/blackfin/mach-bf548/boards/cm_bf548.c b/arch/blackfin/mach-bf548/boards/cm_bf548.c
index 0350eacec21b..68af594db48e 100644
--- a/arch/blackfin/mach-bf548/boards/cm_bf548.c
+++ b/arch/blackfin/mach-bf548/boards/cm_bf548.c
@@ -854,7 +854,7 @@ static struct platform_device para_flash_device = {
 };
 #endif
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 /* all SPI peripherals info goes here */
 #if defined(CONFIG_MTD_M25P80) \
 	|| defined(CONFIG_MTD_M25P80_MODULE)
@@ -1175,7 +1175,7 @@ static struct platform_device *cm_bf548_devices[] __initdata = {
 	&bf54x_sdh_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 	&bf54x_spi_master0,
 	&bf54x_spi_master1,
 #endif
@@ -1210,7 +1210,7 @@ static int __init cm_bf548_init(void)
 	printk(KERN_INFO "%s(): registering device resources\n", __func__);
 	platform_add_devices(cm_bf548_devices, ARRAY_SIZE(cm_bf548_devices));
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 	spi_register_board_info(bf54x_spi_board_info,
 			ARRAY_SIZE(bf54x_spi_board_info));
 #endif
diff --git a/arch/blackfin/mach-bf548/boards/ezkit.c b/arch/blackfin/mach-bf548/boards/ezkit.c
index bb868ac0fe2d..3ea45f8bd61c 100644
--- a/arch/blackfin/mach-bf548/boards/ezkit.c
+++ b/arch/blackfin/mach-bf548/boards/ezkit.c
@@ -1110,7 +1110,7 @@ static struct spi_board_info bfin_spi_board_info[] __initdata = {
 	},
 #endif
 };
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 /* SPI (0) */
 static struct resource bfin_spi0_resource[] = {
 	[0] = {
@@ -1183,6 +1183,71 @@ static struct platform_device bf54x_spi_master1 = {
 };
 #endif  /* spi master and devices */
 
+#if defined(CONFIG_VIDEO_BLACKFIN_CAPTURE) \
+	|| defined(CONFIG_VIDEO_BLACKFIN_CAPTURE_MODULE)
+#include <linux/videodev2.h>
+#include <media/blackfin/bfin_capture.h>
+#include <media/blackfin/ppi.h>
+
+static const unsigned short ppi_req[] = {
+	P_PPI1_D0, P_PPI1_D1, P_PPI1_D2, P_PPI1_D3,
+	P_PPI1_D4, P_PPI1_D5, P_PPI1_D6, P_PPI1_D7,
+	P_PPI1_CLK, P_PPI1_FS1, P_PPI1_FS2,
+	0,
+};
+
+static const struct ppi_info ppi_info = {
+	.type = PPI_TYPE_EPPI,
+	.dma_ch = CH_EPPI1,
+	.irq_err = IRQ_EPPI1_ERROR,
+	.base = (void __iomem *)EPPI1_STATUS,
+	.pin_req = ppi_req,
+};
+
+#if defined(CONFIG_VIDEO_VS6624) \
+	|| defined(CONFIG_VIDEO_VS6624_MODULE)
+static struct v4l2_input vs6624_inputs[] = {
+	{
+		.index = 0,
+		.name = "Camera",
+		.type = V4L2_INPUT_TYPE_CAMERA,
+		.std = V4L2_STD_UNKNOWN,
+	},
+};
+
+static struct bcap_route vs6624_routes[] = {
+	{
+		.input = 0,
+		.output = 0,
+	},
+};
+
+static const unsigned vs6624_ce_pin = GPIO_PG6;
+
+static struct bfin_capture_config bfin_capture_data = {
+	.card_name = "BF548",
+	.inputs = vs6624_inputs,
+	.num_inputs = ARRAY_SIZE(vs6624_inputs),
+	.routes = vs6624_routes,
+	.i2c_adapter_id = 0,
+	.board_info = {
+		.type = "vs6624",
+		.addr = 0x10,
+		.platform_data = (void *)&vs6624_ce_pin,
+	},
+	.ppi_info = &ppi_info,
+	.ppi_control = (POLC | PACKEN | DLEN_8 | XFR_TYPE | 0x20),
+};
+#endif
+
+static struct platform_device bfin_capture_device = {
+	.name = "bfin_capture",
+	.dev = {
+		.platform_data = &bfin_capture_data,
+	},
+};
+#endif
+
 #if defined(CONFIG_I2C_BLACKFIN_TWI) || defined(CONFIG_I2C_BLACKFIN_TWI_MODULE)
 static struct resource bfin_twi0_resource[] = {
 	[0] = {
@@ -1502,10 +1567,14 @@ static struct platform_device *ezkit_devices[] __initdata = {
 	&bf54x_sdh_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 	&bf54x_spi_master0,
 	&bf54x_spi_master1,
 #endif
+#if defined(CONFIG_VIDEO_BLACKFIN_CAPTURE) \
+	|| defined(CONFIG_VIDEO_BLACKFIN_CAPTURE_MODULE)
+	&bfin_capture_device,
+#endif
 
 #if defined(CONFIG_KEYBOARD_BFIN) || defined(CONFIG_KEYBOARD_BFIN_MODULE)
 	&bf54x_kpad_device,
diff --git a/arch/blackfin/mach-bf561/boards/acvilon.c b/arch/blackfin/mach-bf561/boards/acvilon.c
index b1b7339b6ba7..f6ffd6f054c3 100644
--- a/arch/blackfin/mach-bf561/boards/acvilon.c
+++ b/arch/blackfin/mach-bf561/boards/acvilon.c
@@ -372,7 +372,7 @@ static struct bfin5xx_spi_chip data_flash_chip_info = {
 };
 #endif
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 /* SPI (0) */
 static struct resource bfin_spi0_resource[] = {
 	[0] = {
@@ -475,7 +475,7 @@ static struct platform_device bfin_dpmc = {
 static struct platform_device *acvilon_devices[] __initdata = {
 	&bfin_dpmc,
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 	&bfin_spi0_device,
 #endif
 
diff --git a/arch/blackfin/mach-bf561/boards/cm_bf561.c b/arch/blackfin/mach-bf561/boards/cm_bf561.c
index c017cf07ed4e..d81450f635df 100644
--- a/arch/blackfin/mach-bf561/boards/cm_bf561.c
+++ b/arch/blackfin/mach-bf561/boards/cm_bf561.c
@@ -29,7 +29,7 @@
  */
 const char bfin_board_name[] = "Bluetechnix CM BF561";
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 /* all SPI peripherals info goes here */
 
 #if defined(CONFIG_MTD_M25P80) || defined(CONFIG_MTD_M25P80_MODULE)
@@ -488,7 +488,7 @@ static struct platform_device *cm_bf561_devices[] __initdata = {
 	&net2272_bfin_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 	&bfin_spi0_device,
 #endif
 
@@ -523,7 +523,7 @@ static int __init cm_bf561_init(void)
 {
 	printk(KERN_INFO "%s(): registering device resources\n", __func__);
 	platform_add_devices(cm_bf561_devices, ARRAY_SIZE(cm_bf561_devices));
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 	spi_register_board_info(bfin_spi_board_info, ARRAY_SIZE(bfin_spi_board_info));
 #endif
 
diff --git a/arch/blackfin/mach-bf561/boards/ezkit.c b/arch/blackfin/mach-bf561/boards/ezkit.c
index 27f22ed381d9..838978808a15 100644
--- a/arch/blackfin/mach-bf561/boards/ezkit.c
+++ b/arch/blackfin/mach-bf561/boards/ezkit.c
@@ -291,7 +291,7 @@ static struct platform_device ezkit_flash_device = {
 };
 #endif
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 /* SPI (0) */
 static struct resource bfin_spi0_resource[] = {
 	[0] = {
@@ -383,7 +383,7 @@ static struct i2c_gpio_platform_data i2c_gpio_data = {
 	.scl_pin		= GPIO_PF0,
 	.sda_is_open_drain	= 0,
 	.scl_is_open_drain	= 0,
-	.udelay			= 40,
+	.udelay			= 10,
 };
 
 static struct platform_device i2c_gpio_device = {
@@ -422,6 +422,96 @@ static struct platform_device bfin_dpmc = {
 	},
 };
 
+#if defined(CONFIG_VIDEO_BLACKFIN_CAPTURE) \
+	|| defined(CONFIG_VIDEO_BLACKFIN_CAPTURE_MODULE)
+#include <linux/videodev2.h>
+#include <media/blackfin/bfin_capture.h>
+#include <media/blackfin/ppi.h>
+
+static const unsigned short ppi_req[] = {
+	P_PPI0_D0, P_PPI0_D1, P_PPI0_D2, P_PPI0_D3,
+	P_PPI0_D4, P_PPI0_D5, P_PPI0_D6, P_PPI0_D7,
+	P_PPI0_CLK, P_PPI0_FS1, P_PPI0_FS2,
+	0,
+};
+
+static const struct ppi_info ppi_info = {
+	.type = PPI_TYPE_PPI,
+	.dma_ch = CH_PPI0,
+	.irq_err = IRQ_PPI1_ERROR,
+	.base = (void __iomem *)PPI0_CONTROL,
+	.pin_req = ppi_req,
+};
+
+#if defined(CONFIG_VIDEO_ADV7183) \
+	|| defined(CONFIG_VIDEO_ADV7183_MODULE)
+#include <media/adv7183.h>
+static struct v4l2_input adv7183_inputs[] = {
+	{
+		.index = 0,
+		.name = "Composite",
+		.type = V4L2_INPUT_TYPE_CAMERA,
+		.std = V4L2_STD_ALL,
+	},
+	{
+		.index = 1,
+		.name = "S-Video",
+		.type = V4L2_INPUT_TYPE_CAMERA,
+		.std = V4L2_STD_ALL,
+	},
+	{
+		.index = 2,
+		.name = "Component",
+		.type = V4L2_INPUT_TYPE_CAMERA,
+		.std = V4L2_STD_ALL,
+	},
+};
+
+static struct bcap_route adv7183_routes[] = {
+	{
+		.input = ADV7183_COMPOSITE4,
+		.output = ADV7183_8BIT_OUT,
+	},
+	{
+		.input = ADV7183_SVIDEO0,
+		.output = ADV7183_8BIT_OUT,
+	},
+	{
+		.input = ADV7183_COMPONENT0,
+		.output = ADV7183_8BIT_OUT,
+	},
+};
+
+
+static const unsigned adv7183_gpio[] = {
+	GPIO_PF13, /* reset pin */
+	GPIO_PF2,  /* output enable pin */
+};
+
+static struct bfin_capture_config bfin_capture_data = {
+	.card_name = "BF561",
+	.inputs = adv7183_inputs,
+	.num_inputs = ARRAY_SIZE(adv7183_inputs),
+	.routes = adv7183_routes,
+	.i2c_adapter_id = 0,
+	.board_info = {
+		.type = "adv7183",
+		.addr = 0x20,
+		.platform_data = (void *)adv7183_gpio,
+	},
+	.ppi_info = &ppi_info,
+	.ppi_control = (PACK_EN | DLEN_8 | DMA32 | FLD_SEL),
+};
+#endif
+
+static struct platform_device bfin_capture_device = {
+	.name = "bfin_capture",
+	.dev = {
+		.platform_data = &bfin_capture_data,
+	},
+};
+#endif
+
 #if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE)
 static struct platform_device bfin_i2s = {
 	.name = "bfin-i2s",
@@ -462,7 +552,7 @@ static struct platform_device *ezkit_devices[] __initdata = {
 	&bfin_isp1760_device,
 #endif
 
-#if defined(CONFIG_SPI_BFIN) || defined(CONFIG_SPI_BFIN_MODULE)
+#if defined(CONFIG_SPI_BFIN5XX) || defined(CONFIG_SPI_BFIN5XX_MODULE)
 	&bfin_spi0_device,
 #endif
 
@@ -494,6 +584,11 @@ static struct platform_device *ezkit_devices[] __initdata = {
 	&ezkit_flash_device,
 #endif
 
+#if defined(CONFIG_VIDEO_BLACKFIN_CAPTURE) \
+	|| defined(CONFIG_VIDEO_BLACKFIN_CAPTURE_MODULE)
+	&bfin_capture_device,
+#endif
+
 #if defined(CONFIG_SND_BF5XX_I2S) || defined(CONFIG_SND_BF5XX_I2S_MODULE)
 	&bfin_i2s,
 #endif
diff --git a/arch/blackfin/mach-bf561/include/mach/pll.h b/arch/blackfin/mach-bf561/include/mach/pll.h
index 7977db2f1c12..00bdacee9cc2 100644
--- a/arch/blackfin/mach-bf561/include/mach/pll.h
+++ b/arch/blackfin/mach-bf561/include/mach/pll.h
@@ -16,6 +16,7 @@
 #include <mach/irq.h>
 
 #define SUPPLE_0_WAKEUP ((IRQ_SUPPLE_0 - (IRQ_CORETMR + 1)) % 32)
+#define SUPPLE_1_WAKEUP ((IRQ_SUPPLE_1 - (IRQ_CORETMR + 1)) % 32)
 
 static inline void
 bfin_iwr_restore(unsigned long iwr0, unsigned long iwr1, unsigned long iwr2)
@@ -42,7 +43,8 @@ bfin_iwr_save(unsigned long niwr0, unsigned long niwr1, unsigned long niwr2,
 static inline void
 bfin_iwr_set_sup0(unsigned long *iwr0, unsigned long *iwr1, unsigned long *iwr2)
 {
-	bfin_iwr_save(0, IWR_ENABLE(SUPPLE_0_WAKEUP), 0, iwr0, iwr1, iwr2);
+	bfin_iwr_save(0, IWR_ENABLE(SUPPLE_0_WAKEUP) |
+			IWR_ENABLE(SUPPLE_1_WAKEUP), 0, iwr0, iwr1, iwr2);
 }
 
 #endif
diff --git a/arch/blackfin/mach-bf561/smp.c b/arch/blackfin/mach-bf561/smp.c
index db22401e7605..ab1c617b9cfc 100644
--- a/arch/blackfin/mach-bf561/smp.c
+++ b/arch/blackfin/mach-bf561/smp.c
@@ -84,7 +84,7 @@ int __cpuinit platform_boot_secondary(unsigned int cpu, struct task_struct *idle
 
 	if ((bfin_read_SYSCR() & COREB_SRAM_INIT) == 0) {
 		/* CoreB already running, sending ipi to wakeup it */
-		platform_send_ipi_cpu(cpu, IRQ_SUPPLE_0);
+		smp_send_reschedule(cpu);
 	} else {
 		/* Kick CoreB, which should start execution from CORE_SRAM_BASE. */
 		bfin_write_SYSCR(bfin_read_SYSCR() & ~COREB_SRAM_INIT);
@@ -114,7 +114,8 @@ void __init platform_request_ipi(int irq, void *handler)
 	int ret;
 	const char *name = (irq == IRQ_SUPPLE_0) ? supple0 : supple1;
 
-	ret = request_irq(irq, handler, IRQF_PERCPU, name, handler);
+	ret = request_irq(irq, handler, IRQF_PERCPU | IRQF_NO_SUSPEND |
+			IRQF_FORCE_RESUME, name, handler);
 	if (ret)
 		panic("Cannot request %s for IPI service", name);
 }
diff --git a/arch/blackfin/mach-common/smp.c b/arch/blackfin/mach-common/smp.c
index 0784a52389c8..ac8f8a43158c 100644
--- a/arch/blackfin/mach-common/smp.c
+++ b/arch/blackfin/mach-common/smp.c
@@ -14,6 +14,7 @@
 #include <linux/sched.h>
 #include <linux/interrupt.h>
 #include <linux/cache.h>
+#include <linux/clockchips.h>
 #include <linux/profile.h>
 #include <linux/errno.h>
 #include <linux/mm.h>
@@ -47,9 +48,10 @@ unsigned long blackfin_iflush_l1_entry[NR_CPUS];
 
 struct blackfin_initial_pda __cpuinitdata initial_pda_coreb;
 
-#define BFIN_IPI_RESCHEDULE   0
-#define BFIN_IPI_CALL_FUNC    1
-#define BFIN_IPI_CPU_STOP     2
+#define BFIN_IPI_TIMER	      0
+#define BFIN_IPI_RESCHEDULE   1
+#define BFIN_IPI_CALL_FUNC    2
+#define BFIN_IPI_CPU_STOP     3
 
 struct blackfin_flush_data {
 	unsigned long start;
@@ -160,6 +162,14 @@ static irqreturn_t ipi_handler_int0(int irq, void *dev_instance)
 	return IRQ_HANDLED;
 }
 
+DECLARE_PER_CPU(struct clock_event_device, coretmr_events);
+void ipi_timer(void)
+{
+	int cpu = smp_processor_id();
+	struct clock_event_device *evt = &per_cpu(coretmr_events, cpu);
+	evt->event_handler(evt);
+}
+
 static irqreturn_t ipi_handler_int1(int irq, void *dev_instance)
 {
 	struct ipi_message *msg;
@@ -176,18 +186,17 @@ static irqreturn_t ipi_handler_int1(int irq, void *dev_instance)
 	while (msg_queue->count) {
 		msg = &msg_queue->ipi_message[msg_queue->head];
 		switch (msg->type) {
+		case BFIN_IPI_TIMER:
+			ipi_timer();
+			break;
 		case BFIN_IPI_RESCHEDULE:
 			scheduler_ipi();
 			break;
 		case BFIN_IPI_CALL_FUNC:
-			spin_unlock_irqrestore(&msg_queue->lock, flags);
 			ipi_call_function(cpu, msg);
-			spin_lock_irqsave(&msg_queue->lock, flags);
 			break;
 		case BFIN_IPI_CPU_STOP:
-			spin_unlock_irqrestore(&msg_queue->lock, flags);
 			ipi_cpu_stop(cpu);
-			spin_lock_irqsave(&msg_queue->lock, flags);
 			break;
 		default:
 			printk(KERN_CRIT "CPU%u: Unknown IPI message 0x%lx\n",
@@ -297,8 +306,6 @@ void smp_send_reschedule(int cpu)
 {
 	cpumask_t callmap;
 	/* simply trigger an ipi */
-	if (cpu_is_offline(cpu))
-		return;
 
 	cpumask_clear(&callmap);
 	cpumask_set_cpu(cpu, &callmap);
@@ -308,6 +315,16 @@ void smp_send_reschedule(int cpu)
 	return;
 }
 
+void smp_send_msg(const struct cpumask *mask, unsigned long type)
+{
+	smp_send_message(*mask, type, NULL, NULL, 0);
+}
+
+void smp_timer_broadcast(const struct cpumask *mask)
+{
+	smp_send_msg(mask, BFIN_IPI_TIMER);
+}
+
 void smp_send_stop(void)
 {
 	cpumask_t callmap;
@@ -326,17 +343,24 @@ void smp_send_stop(void)
 int __cpuinit __cpu_up(unsigned int cpu)
 {
 	int ret;
-	static struct task_struct *idle;
+	struct blackfin_cpudata *ci = &per_cpu(cpu_data, cpu);
+	struct task_struct *idle = ci->idle;
 
-	if (idle)
+	if (idle) {
 		free_task(idle);
-
-	idle = fork_idle(cpu);
-	if (IS_ERR(idle)) {
-		printk(KERN_ERR "CPU%u: fork() failed\n", cpu);
-		return PTR_ERR(idle);
+		idle = NULL;
 	}
 
+	if (!idle) {
+		idle = fork_idle(cpu);
+		if (IS_ERR(idle)) {
+			printk(KERN_ERR "CPU%u: fork() failed\n", cpu);
+			return PTR_ERR(idle);
+		}
+		ci->idle = idle;
+	} else {
+		init_idle(idle, cpu);
+	}
 	secondary_stack = task_stack_page(idle) + THREAD_SIZE;
 
 	ret = platform_boot_secondary(cpu, idle);
@@ -411,6 +435,7 @@ void __cpuinit secondary_start_kernel(void)
 
 	bfin_setup_caches(cpu);
 
+	notify_cpu_starting(cpu);
 	/*
 	 * Calibrate loops per jiffy value.
 	 * IRQs need to be enabled here - D-cache can be invalidated
@@ -453,8 +478,10 @@ void smp_icache_flush_range_others(unsigned long start, unsigned long end)
 	smp_flush_data.start = start;
 	smp_flush_data.end = end;
 
-	if (smp_call_function(&ipi_flush_icache, &smp_flush_data, 0))
+	preempt_disable();
+	if (smp_call_function(&ipi_flush_icache, &smp_flush_data, 1))
 		printk(KERN_WARNING "SMP: failed to run I-cache flush request on other CPUs\n");
+	preempt_enable();
 }
 EXPORT_SYMBOL_GPL(smp_icache_flush_range_others);
 
diff --git a/arch/c6x/Kconfig b/arch/c6x/Kconfig
new file mode 100644
index 000000000000..26e67f0f0051
--- /dev/null
+++ b/arch/c6x/Kconfig
@@ -0,0 +1,174 @@
+#
+# For a description of the syntax of this configuration file,
+# see Documentation/kbuild/kconfig-language.txt.
+#
+
+config TMS320C6X
+	def_bool y
+	select CLKDEV_LOOKUP
+	select GENERIC_IRQ_SHOW
+	select HAVE_ARCH_TRACEHOOK
+	select HAVE_DMA_API_DEBUG
+	select HAVE_GENERIC_HARDIRQS
+	select HAVE_MEMBLOCK
+	select HAVE_SPARSE_IRQ
+	select OF
+	select OF_EARLY_FLATTREE
+
+config MMU
+	def_bool n
+
+config ZONE_DMA
+	def_bool y
+
+config FPU
+	def_bool n
+
+config HIGHMEM
+	def_bool n
+
+config NUMA
+	def_bool n
+
+config RWSEM_GENERIC_SPINLOCK
+	def_bool y
+
+config RWSEM_XCHGADD_ALGORITHM
+	def_bool n
+
+config GENERIC_CALIBRATE_DELAY
+	def_bool y
+
+config GENERIC_HWEIGHT
+	def_bool y
+
+config GENERIC_CLOCKEVENTS
+	def_bool y
+
+config GENERIC_CLOCKEVENTS_BROADCAST
+	bool
+
+config GENERIC_BUG
+	def_bool y
+
+config COMMON_CLKDEV
+	def_bool y
+
+config C6X_BIG_KERNEL
+	bool "Build a big kernel"
+	help
+	  The C6X function call instruction has a limited range of +/- 2MiB.
+	  This is sufficient for most kernels, but some kernel configurations
+	  with lots of compiled-in functionality may require a larger range
+	  for function calls. Use this option to have the compiler generate
+	  function calls with 32-bit range. This will make the kernel both
+	  larger and slower.
+
+	  If unsure, say N.
+
+source "init/Kconfig"
+
+# Use the generic interrupt handling code in kernel/irq/
+
+source "kernel/Kconfig.freezer"
+
+config CMDLINE_BOOL
+	bool "Default bootloader kernel arguments"
+
+config CMDLINE
+	string "Kernel command line"
+	depends on CMDLINE_BOOL
+	default "console=ttyS0,57600"
+	help
+	  On some architectures there is currently no way for the boot loader
+	  to pass arguments to the kernel. For these architectures, you should
+	  supply some command-line options at build time by entering them
+	  here.
+
+config CMDLINE_FORCE
+	bool "Force default kernel command string"
+	depends on CMDLINE_BOOL
+	default n
+	help
+	  Set this to have arguments from the default kernel command string
+	  override those passed by the boot loader.
+
+config CPU_BIG_ENDIAN
+	bool "Build big-endian kernel"
+	default n
+	help
+	  Say Y if you plan on running a kernel in big-endian mode.
+	  Note that your board must be properly built and your board
+	  port must properly enable any big-endian related features
+	  of your chipset/board/processor.
+
+config FORCE_MAX_ZONEORDER
+	int "Maximum zone order"
+	default "13"
+	help
+	  The kernel memory allocator divides physically contiguous memory
+	  blocks into "zones", where each zone is a power of two number of
+	  pages.  This option selects the largest power of two that the kernel
+	  keeps in the memory allocator.  If you need to allocate very large
+	  blocks of physically contiguous memory, then you may need to
+	  increase this value.
+
+	  This config option is actually maximum order plus one. For example,
+	  a value of 11 means that the largest free memory block is 2^10 pages.
+
+menu "Processor type and features"
+
+source "arch/c6x/platforms/Kconfig"
+
+config TMS320C6X_CACHES_ON
+	bool "L2 cache support"
+	default y
+
+config KERNEL_RAM_BASE_ADDRESS
+	hex "Virtual address of memory base"
+	default 0xe0000000 if SOC_TMS320C6455
+	default 0xe0000000 if SOC_TMS320C6457
+	default 0xe0000000 if SOC_TMS320C6472
+	default 0x80000000
+
+source "mm/Kconfig"
+
+source "kernel/Kconfig.preempt"
+
+source "kernel/Kconfig.hz"
+source "kernel/time/Kconfig"
+
+endmenu
+
+menu "Executable file formats"
+
+source "fs/Kconfig.binfmt"
+
+endmenu
+
+source "net/Kconfig"
+
+source "drivers/Kconfig"
+
+source "fs/Kconfig"
+
+source "security/Kconfig"
+
+source "crypto/Kconfig"
+
+source "lib/Kconfig"
+
+menu "Kernel hacking"
+
+source "lib/Kconfig.debug"
+
+config ACCESS_CHECK
+	bool "Check the user pointer address"
+	default y
+	help
+	  Usually the pointer transfer from user space is checked to see if its
+	  address is in the kernel space.
+
+	  Say N here to disable that check to improve the performance.
+
+endmenu
diff --git a/arch/c6x/Makefile b/arch/c6x/Makefile
new file mode 100644
index 000000000000..1d08dd070277
--- /dev/null
+++ b/arch/c6x/Makefile
@@ -0,0 +1,60 @@
+#
+# linux/arch/c6x/Makefile
+#
+# This file is subject to the terms and conditions of the GNU General Public
+# License.  See the file "COPYING" in the main directory of this archive
+# for more details.
+#
+
+cflags-y += -mno-dsbt -msdata=none
+
+cflags-$(CONFIG_C6X_BIG_KERNEL) += -mlong-calls
+
+CFLAGS_MODULE   += -mlong-calls -mno-dsbt -msdata=none
+
+CHECKFLAGS      +=
+
+KBUILD_CFLAGS   += $(cflags-y)
+KBUILD_AFLAGS   += $(cflags-y)
+
+ifdef CONFIG_CPU_BIG_ENDIAN
+KBUILD_CFLAGS   += -mbig-endian
+KBUILD_AFLAGS   += -mbig-endian
+LINKFLAGS       += -mbig-endian
+KBUILD_LDFLAGS  += -mbig-endian
+LDFLAGS += -EB
+endif
+
+head-y          := arch/c6x/kernel/head.o
+core-y          += arch/c6x/kernel/ arch/c6x/mm/ arch/c6x/platforms/
+libs-y          += arch/c6x/lib/
+
+# Default to vmlinux.bin, override when needed
+all: vmlinux.bin
+
+boot := arch/$(ARCH)/boot
+
+# Are we making a dtbImage.<boardname> target? If so, crack out the boardname
+DTB:=$(subst dtbImage.,,$(filter dtbImage.%, $(MAKECMDGOALS)))
+export DTB
+
+ifneq ($(DTB),)
+core-y	+= $(boot)/
+endif
+
+# With make 3.82 we cannot mix normal and wildcard targets
+
+vmlinux.bin: vmlinux
+	$(Q)$(MAKE) $(build)=$(boot) $(patsubst %,$(boot)/%,$@)
+
+dtbImage.%: vmlinux
+	$(Q)$(MAKE) $(build)=$(boot) $(patsubst %,$(boot)/%,$@)
+
+archclean:
+	$(Q)$(MAKE) $(clean)=$(boot)
+
+define archhelp
+  @echo '  vmlinux.bin     - Binary kernel image (arch/$(ARCH)/boot/vmlinux.bin)'
+  @echo '  dtbImage.<dt>   - ELF image with $(arch)/boot/dts/<dt>.dts linked in'
+  @echo '                  - stripped elf with fdt blob'
+endef
diff --git a/arch/c6x/boot/Makefile b/arch/c6x/boot/Makefile
new file mode 100644
index 000000000000..ecca820e6041
--- /dev/null
+++ b/arch/c6x/boot/Makefile
@@ -0,0 +1,30 @@
+#
+# Makefile for bootable kernel images
+#
+
+OBJCOPYFLAGS_vmlinux.bin := -O binary
+$(obj)/vmlinux.bin: vmlinux FORCE
+	$(call if_changed,objcopy)
+
+DTC_FLAGS ?= -p 1024
+
+ifneq ($(DTB),)
+obj-y += linked_dtb.o
+endif
+
+$(obj)/%.dtb: $(src)/dts/%.dts FORCE
+	$(call cmd,dtc)
+
+quiet_cmd_cp = CP      $< $@$2
+	cmd_cp = cat $< >$@$2 || (rm -f $@ && echo false)
+
+# Generate builtin.dtb from $(DTB).dtb
+$(obj)/builtin.dtb: $(obj)/$(DTB).dtb
+	$(call if_changed,cp)
+
+$(obj)/linked_dtb.o: $(obj)/builtin.dtb
+
+$(obj)/dtbImage.%: vmlinux
+	$(call if_changed,objcopy)
+
+clean-files := $(obj)/*.dtb
diff --git a/arch/c6x/boot/dts/dsk6455.dts b/arch/c6x/boot/dts/dsk6455.dts
new file mode 100644
index 000000000000..2b71f800618d
--- /dev/null
+++ b/arch/c6x/boot/dts/dsk6455.dts
@@ -0,0 +1,62 @@
+/*
+ * arch/c6x/boot/dts/dsk6455.dts
+ *
+ * DSK6455 Evaluation Platform For TMS320C6455
+ * Copyright (C) 2011 Texas Instruments Incorporated
+ *
+ * Author: Mark Salter <msalter@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ */
+
+/dts-v1/;
+
+/include/ "tms320c6455.dtsi"
+
+/ {
+	model = "Spectrum Digital DSK6455";
+	compatible = "spectrum-digital,dsk6455";
+
+	chosen {
+		bootargs = "root=/dev/nfs ip=dhcp rw";
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0xE0000000 0x08000000>;
+	};
+
+	soc {
+		megamod_pic: interrupt-controller@1800000 {
+			interrupts = < 12 13 14 15 >;
+		};
+
+		emifa@70000000 {
+			flash@3,0 {
+				  #address-cells = <1>;
+				#size-cells = <1>;
+				compatible = "cfi-flash";
+				reg = <0x3 0x0 0x400000>;
+				bank-width = <1>;
+				device-width = <1>;
+				partition@0 {
+					reg = <0x0 0x400000>;
+					label = "NOR";
+				};
+			};
+		};
+
+		timer1: timer@2980000 {
+			interrupt-parent = <&megamod_pic>;
+			interrupts = < 69 >;
+		};
+
+		clock-controller@029a0000 {
+			clock-frequency = <50000000>;
+		};
+	};
+};
diff --git a/arch/c6x/boot/dts/evmc6457.dts b/arch/c6x/boot/dts/evmc6457.dts
new file mode 100644
index 000000000000..0301eb9a8ff8
--- /dev/null
+++ b/arch/c6x/boot/dts/evmc6457.dts
@@ -0,0 +1,48 @@
+/*
+ * arch/c6x/boot/dts/evmc6457.dts
+ *
+ * EVMC6457 Evaluation Platform For TMS320C6457
+ *
+ * Copyright (C) 2011 Texas Instruments Incorporated
+ *
+ * Author: Mark Salter <msalter@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ */
+
+/dts-v1/;
+
+/include/ "tms320c6457.dtsi"
+
+/ {
+	model = "eInfochips EVMC6457";
+	compatible = "einfochips,evmc6457";
+
+	chosen {
+		bootargs = "console=hvc root=/dev/nfs ip=dhcp rw";
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0xE0000000 0x10000000>;
+	};
+
+	soc {
+		megamod_pic: interrupt-controller@1800000 {
+		       interrupts = < 12 13 14 15 >;
+		};
+
+		timer0: timer@2940000 {
+			interrupt-parent = <&megamod_pic>;
+			interrupts = < 67 >;
+		};
+
+		clock-controller@29a0000 {
+			clock-frequency = <60000000>;
+		};
+	};
+};
diff --git a/arch/c6x/boot/dts/evmc6472.dts b/arch/c6x/boot/dts/evmc6472.dts
new file mode 100644
index 000000000000..3e207b449a93
--- /dev/null
+++ b/arch/c6x/boot/dts/evmc6472.dts
@@ -0,0 +1,73 @@
+/*
+ * arch/c6x/boot/dts/evmc6472.dts
+ *
+ * EVMC6472 Evaluation Platform For TMS320C6472
+ *
+ * Copyright (C) 2011 Texas Instruments Incorporated
+ *
+ * Author: Mark Salter <msalter@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ */
+
+/dts-v1/;
+
+/include/ "tms320c6472.dtsi"
+
+/ {
+	model = "eInfochips EVMC6472";
+	compatible = "einfochips,evmc6472";
+
+	chosen {
+		bootargs = "console=hvc root=/dev/nfs ip=dhcp rw";
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0xE0000000 0x10000000>;
+	};
+
+	soc {
+		megamod_pic: interrupt-controller@1800000 {
+		       interrupts = < 12 13 14 15 >;
+		};
+
+		timer0: timer@25e0000 {
+			interrupt-parent = <&megamod_pic>;
+			interrupts = < 16 >;
+		};
+
+		timer1: timer@25f0000 {
+			interrupt-parent = <&megamod_pic>;
+			interrupts = < 16 >;
+		};
+
+		timer2: timer@2600000 {
+			interrupt-parent = <&megamod_pic>;
+			interrupts = < 16 >;
+		};
+
+		timer3: timer@2610000 {
+			interrupt-parent = <&megamod_pic>;
+			interrupts = < 16 >;
+		};
+
+		timer4: timer@2620000 {
+			interrupt-parent = <&megamod_pic>;
+			interrupts = < 16 >;
+		};
+
+		timer5: timer@2630000 {
+			interrupt-parent = <&megamod_pic>;
+			interrupts = < 16 >;
+		};
+
+		clock-controller@29a0000 {
+			clock-frequency = <25000000>;
+		};
+	};
+};
diff --git a/arch/c6x/boot/dts/evmc6474.dts b/arch/c6x/boot/dts/evmc6474.dts
new file mode 100644
index 000000000000..4dc291292bc4
--- /dev/null
+++ b/arch/c6x/boot/dts/evmc6474.dts
@@ -0,0 +1,58 @@
+/*
+ * arch/c6x/boot/dts/evmc6474.dts
+ *
+ * EVMC6474 Evaluation Platform For TMS320C6474
+ *
+ * Copyright (C) 2011 Texas Instruments Incorporated
+ *
+ * Author: Mark Salter <msalter@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ */
+
+/dts-v1/;
+
+/include/ "tms320c6474.dtsi"
+
+/ {
+	model = "Spectrum Digital EVMC6474";
+	compatible = "spectrum-digital,evmc6474";
+
+	chosen {
+		bootargs = "console=hvc root=/dev/nfs ip=dhcp rw";
+	};
+
+	memory {
+		device_type = "memory";
+		reg = <0x80000000 0x08000000>;
+	};
+
+	soc {
+		megamod_pic: interrupt-controller@1800000 {
+		       interrupts = < 12 13 14 15 >;
+		};
+
+		timer3: timer@2940000 {
+			interrupt-parent = <&megamod_pic>;
+			interrupts = < 39 >;
+		};
+
+		timer4: timer@2950000 {
+			interrupt-parent = <&megamod_pic>;
+			interrupts = < 41 >;
+		};
+
+		timer5: timer@2960000 {
+			interrupt-parent = <&megamod_pic>;
+			interrupts = < 43 >;
+		};
+
+		clock-controller@29a0000 {
+			clock-frequency = <50000000>;
+		};
+	};
+};
diff --git a/arch/c6x/boot/dts/tms320c6455.dtsi b/arch/c6x/boot/dts/tms320c6455.dtsi
new file mode 100644
index 000000000000..a804ec1e018b
--- /dev/null
+++ b/arch/c6x/boot/dts/tms320c6455.dtsi
@@ -0,0 +1,96 @@
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu@0 {
+			device_type = "cpu";
+			model = "ti,c64x+";
+			reg = <0>;
+		};
+	};
+
+	soc {
+		compatible = "simple-bus";
+		model = "tms320c6455";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		core_pic: interrupt-controller {
+			  interrupt-controller;
+			  #interrupt-cells = <1>;
+			  compatible = "ti,c64x+core-pic";
+		};
+
+		/*
+		 * Megamodule interrupt controller
+		 */
+		megamod_pic: interrupt-controller@1800000 {
+		       compatible = "ti,c64x+megamod-pic";
+		       interrupt-controller;
+		       #interrupt-cells = <1>;
+		       reg = <0x1800000 0x1000>;
+		       interrupt-parent = <&core_pic>;
+		};
+
+		cache-controller@1840000 {
+			compatible = "ti,c64x+cache";
+			reg = <0x01840000 0x8400>;
+		};
+
+		emifa@70000000 {
+			compatible = "ti,c64x+emifa", "simple-bus";
+			#address-cells = <2>;
+			#size-cells = <1>;
+			reg = <0x70000000 0x100>;
+			ranges = <0x2 0x0 0xa0000000 0x00000008
+			          0x3 0x0 0xb0000000 0x00400000
+				  0x4 0x0 0xc0000000 0x10000000
+				  0x5 0x0 0xD0000000 0x10000000>;
+
+			ti,dscr-dev-enable = <13>;
+			ti,emifa-burst-priority = <255>;
+			ti,emifa-ce-config = <0x00240120
+					      0x00240120
+					      0x00240122
+					      0x00240122>;
+		};
+
+		timer1: timer@2980000 {
+			compatible = "ti,c64x+timer64";
+			reg = <0x2980000 0x40>;
+			ti,dscr-dev-enable = <4>;
+		};
+
+		clock-controller@029a0000 {
+			compatible = "ti,c6455-pll", "ti,c64x+pll";
+			reg = <0x029a0000 0x200>;
+			ti,c64x+pll-bypass-delay = <1440>;
+			ti,c64x+pll-reset-delay = <15360>;
+			ti,c64x+pll-lock-delay = <24000>;
+		};
+
+		device-state-config-regs@2a80000 {
+			compatible = "ti,c64x+dscr";
+			reg = <0x02a80000 0x41000>;
+
+			ti,dscr-devstat = <0>;
+			ti,dscr-silicon-rev = <8 28 0xf>;
+			ti,dscr-rmii-resets = <0 0x40020 0x00040000>;
+
+			ti,dscr-locked-regs = <0x40008 0x40004 0x0f0a0b00>;
+			ti,dscr-devstate-ctl-regs =
+				 <0 12 0x40008 1 0  0  2
+				  12 1 0x40008 3 0 30  2
+				  13 2 0x4002c 1 0xffffffff 0 1>;
+			ti,dscr-devstate-stat-regs =
+				<0 10 0x40014 1 0  0  3
+				 10 2 0x40018 1 0  0  3>;
+		};
+	};
+};
diff --git a/arch/c6x/boot/dts/tms320c6457.dtsi b/arch/c6x/boot/dts/tms320c6457.dtsi
new file mode 100644
index 000000000000..35f40709a719
--- /dev/null
+++ b/arch/c6x/boot/dts/tms320c6457.dtsi
@@ -0,0 +1,68 @@
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu@0 {
+			device_type = "cpu";
+			model = "ti,c64x+";
+			reg = <0>;
+		};
+	};
+
+	soc {
+		compatible = "simple-bus";
+		model = "tms320c6457";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		core_pic: interrupt-controller {
+			interrupt-controller;
+			#interrupt-cells = <1>;
+			compatible = "ti,c64x+core-pic";
+		};
+
+		megamod_pic: interrupt-controller@1800000 {
+			compatible = "ti,c64x+megamod-pic";
+			interrupt-controller;
+			#interrupt-cells = <1>;
+			interrupt-parent = <&core_pic>;
+			reg = <0x1800000 0x1000>;
+		};
+
+		cache-controller@1840000 {
+			compatible = "ti,c64x+cache";
+			reg = <0x01840000 0x8400>;
+		};
+
+		device-state-controller@2880800 {
+			compatible = "ti,c64x+dscr";
+			reg = <0x02880800 0x400>;
+
+			ti,dscr-devstat = <0x20>;
+			ti,dscr-silicon-rev = <0x18 28 0xf>;
+			ti,dscr-mac-fuse-regs = <0x114 3 4 5 6
+						 0x118 0 0 1 2>;
+			ti,dscr-kick-regs = <0x38 0x83E70B13
+					     0x3c 0x95A4F1E0>;
+		};
+
+		timer0: timer@2940000 {
+			compatible = "ti,c64x+timer64";
+			reg = <0x2940000 0x40>;
+		};
+
+		clock-controller@29a0000 {
+			compatible = "ti,c6457-pll", "ti,c64x+pll";
+			reg = <0x029a0000 0x200>;
+			ti,c64x+pll-bypass-delay = <300>;
+			ti,c64x+pll-reset-delay = <24000>;
+			ti,c64x+pll-lock-delay = <50000>;
+		};
+	};
+};
diff --git a/arch/c6x/boot/dts/tms320c6472.dtsi b/arch/c6x/boot/dts/tms320c6472.dtsi
new file mode 100644
index 000000000000..b488aaec65c0
--- /dev/null
+++ b/arch/c6x/boot/dts/tms320c6472.dtsi
@@ -0,0 +1,134 @@
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu@0 {
+			device_type = "cpu";
+			reg = <0>;
+			model = "ti,c64x+";
+		};
+		cpu@1 {
+			device_type = "cpu";
+			reg = <1>;
+			model = "ti,c64x+";
+		};
+		cpu@2 {
+			device_type = "cpu";
+			reg = <2>;
+			model = "ti,c64x+";
+		};
+		cpu@3 {
+			device_type = "cpu";
+			reg = <3>;
+			model = "ti,c64x+";
+		};
+		cpu@4 {
+			device_type = "cpu";
+			reg = <4>;
+			model = "ti,c64x+";
+		};
+		cpu@5 {
+			device_type = "cpu";
+			reg = <5>;
+			model = "ti,c64x+";
+		};
+	};
+
+	soc {
+		compatible = "simple-bus";
+		model = "tms320c6472";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		core_pic: interrupt-controller {
+			compatible = "ti,c64x+core-pic";
+			interrupt-controller;
+			#interrupt-cells = <1>;
+		};
+
+		megamod_pic: interrupt-controller@1800000 {
+		       compatible = "ti,c64x+megamod-pic";
+		       interrupt-controller;
+		       #interrupt-cells = <1>;
+		       reg = <0x1800000 0x1000>;
+		       interrupt-parent = <&core_pic>;
+		};
+
+		cache-controller@1840000 {
+			compatible = "ti,c64x+cache";
+			reg = <0x01840000 0x8400>;
+		};
+
+		timer0: timer@25e0000 {
+			compatible = "ti,c64x+timer64";
+			ti,core-mask = < 0x01 >;
+			reg = <0x25e0000 0x40>;
+		};
+
+		timer1: timer@25f0000 {
+			compatible = "ti,c64x+timer64";
+			ti,core-mask = < 0x02 >;
+			reg = <0x25f0000 0x40>;
+		};
+
+		timer2: timer@2600000 {
+			compatible = "ti,c64x+timer64";
+			ti,core-mask = < 0x04 >;
+			reg = <0x2600000 0x40>;
+		};
+
+		timer3: timer@2610000 {
+			compatible = "ti,c64x+timer64";
+			ti,core-mask = < 0x08 >;
+			reg = <0x2610000 0x40>;
+		};
+
+		timer4: timer@2620000 {
+			compatible = "ti,c64x+timer64";
+			ti,core-mask = < 0x10 >;
+			reg = <0x2620000 0x40>;
+		};
+
+		timer5: timer@2630000 {
+			compatible = "ti,c64x+timer64";
+			ti,core-mask = < 0x20 >;
+			reg = <0x2630000 0x40>;
+		};
+
+		clock-controller@29a0000 {
+			compatible = "ti,c6472-pll", "ti,c64x+pll";
+			reg = <0x029a0000 0x200>;
+			ti,c64x+pll-bypass-delay = <200>;
+			ti,c64x+pll-reset-delay = <12000>;
+			ti,c64x+pll-lock-delay = <80000>;
+		};
+
+		device-state-controller@2a80000 {
+			compatible = "ti,c64x+dscr";
+			reg = <0x02a80000 0x1000>;
+
+			ti,dscr-devstat = <0>;
+			ti,dscr-silicon-rev = <0x70c 16 0xff>;
+
+			ti,dscr-mac-fuse-regs = <0x700 1 2 3 4
+						 0x704 5 6 0 0>;
+
+			ti,dscr-rmii-resets = <0x208 1
+					       0x20c 1>;
+
+			ti,dscr-locked-regs = <0x200 0x204 0x0a1e183a
+					       0x40c 0x420 0xbea7
+					       0x41c 0x420 0xbea7>;
+
+			ti,dscr-privperm = <0x41c 0xaaaaaaaa>;
+
+			ti,dscr-devstate-ctl-regs = <0 13 0x200 1 0 0 1>;
+		};
+	};
+};
diff --git a/arch/c6x/boot/dts/tms320c6474.dtsi b/arch/c6x/boot/dts/tms320c6474.dtsi
new file mode 100644
index 000000000000..cc601bf348a1
--- /dev/null
+++ b/arch/c6x/boot/dts/tms320c6474.dtsi
@@ -0,0 +1,89 @@
+
+/ {
+	#address-cells = <1>;
+	#size-cells = <1>;
+
+	cpus {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		cpu@0 {
+			device_type = "cpu";
+			reg = <0>;
+			model = "ti,c64x+";
+		};
+		cpu@1 {
+			device_type = "cpu";
+			reg = <1>;
+			model = "ti,c64x+";
+		};
+		cpu@2 {
+			device_type = "cpu";
+			reg = <2>;
+			model = "ti,c64x+";
+		};
+	};
+
+	soc {
+		compatible = "simple-bus";
+		model = "tms320c6474";
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		core_pic: interrupt-controller {
+			interrupt-controller;
+			#interrupt-cells = <1>;
+			compatible = "ti,c64x+core-pic";
+		};
+
+		megamod_pic: interrupt-controller@1800000 {
+		       compatible = "ti,c64x+megamod-pic";
+		       interrupt-controller;
+		       #interrupt-cells = <1>;
+		       reg = <0x1800000 0x1000>;
+		       interrupt-parent = <&core_pic>;
+		};
+
+		cache-controller@1840000 {
+			compatible = "ti,c64x+cache";
+			reg = <0x01840000 0x8400>;
+		};
+
+		timer3: timer@2940000 {
+			compatible = "ti,c64x+timer64";
+			ti,core-mask = < 0x04 >;
+			reg = <0x2940000 0x40>;
+		};
+
+		timer4: timer@2950000 {
+			compatible = "ti,c64x+timer64";
+			ti,core-mask = < 0x02 >;
+			reg = <0x2950000 0x40>;
+		};
+
+		timer5: timer@2960000 {
+			compatible = "ti,c64x+timer64";
+			ti,core-mask = < 0x01 >;
+			reg = <0x2960000 0x40>;
+		};
+
+		device-state-controller@2880800 {
+			compatible = "ti,c64x+dscr";
+			reg = <0x02880800 0x400>;
+
+			ti,dscr-devstat = <0x004>;
+			ti,dscr-silicon-rev = <0x014 28 0xf>;
+			ti,dscr-mac-fuse-regs = <0x34 3 4 5 6
+						 0x38 0 0 1 2>;
+		};
+
+		clock-controller@29a0000 {
+			compatible = "ti,c6474-pll", "ti,c64x+pll";
+			reg = <0x029a0000 0x200>;
+			ti,c64x+pll-bypass-delay = <120>;
+			ti,c64x+pll-reset-delay = <30000>;
+			ti,c64x+pll-lock-delay = <60000>;
+		};
+	};
+};
diff --git a/arch/c6x/boot/linked_dtb.S b/arch/c6x/boot/linked_dtb.S
new file mode 100644
index 000000000000..57a4454eaec3
--- /dev/null
+++ b/arch/c6x/boot/linked_dtb.S
@@ -0,0 +1,2 @@
+.section __fdt_blob,"a"
+.incbin "arch/c6x/boot/builtin.dtb"
diff --git a/arch/c6x/configs/dsk6455_defconfig b/arch/c6x/configs/dsk6455_defconfig
new file mode 100644
index 000000000000..4663487c67a1
--- /dev/null
+++ b/arch/c6x/configs/dsk6455_defconfig
@@ -0,0 +1,44 @@
+CONFIG_SOC_TMS320C6455=y
+CONFIG_EXPERIMENTAL=y
+# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_SYSVIPC=y
+CONFIG_SPARSE_IRQ=y
+CONFIG_LOG_BUF_SHIFT=14
+CONFIG_NAMESPACES=y
+# CONFIG_UTS_NS is not set
+# CONFIG_USER_NS is not set
+# CONFIG_PID_NS is not set
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_EXPERT=y
+# CONFIG_FUTEX is not set
+# CONFIG_SLUB_DEBUG is not set
+CONFIG_MODULES=y
+CONFIG_MODULE_FORCE_LOAD=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODULE_FORCE_UNLOAD=y
+CONFIG_CMDLINE_BOOL=y
+CONFIG_CMDLINE=""
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=2
+CONFIG_BLK_DEV_RAM_SIZE=17000
+CONFIG_MISC_DEVICES=y
+# CONFIG_INPUT is not set
+# CONFIG_SERIO is not set
+# CONFIG_VT is not set
+# CONFIG_HW_RANDOM is not set
+# CONFIG_HWMON is not set
+# CONFIG_USB_SUPPORT is not set
+# CONFIG_IOMMU_SUPPORT is not set
+# CONFIG_MISC_FILESYSTEMS is not set
+CONFIG_CRC16=y
+# CONFIG_ENABLE_MUST_CHECK is not set
+# CONFIG_SCHED_DEBUG is not set
+# CONFIG_DEBUG_BUGVERBOSE is not set
+CONFIG_MTD=y
+CONFIG_MTD_CFI=y
+CONFIG_MTD_CFI_AMDSTD=y
+CONFIG_MTD_PHYSMAP_OF=y
diff --git a/arch/c6x/configs/evmc6457_defconfig b/arch/c6x/configs/evmc6457_defconfig
new file mode 100644
index 000000000000..bba40e195ec4
--- /dev/null
+++ b/arch/c6x/configs/evmc6457_defconfig
@@ -0,0 +1,41 @@
+CONFIG_SOC_TMS320C6457=y
+CONFIG_EXPERIMENTAL=y
+# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_SYSVIPC=y
+CONFIG_SPARSE_IRQ=y
+CONFIG_LOG_BUF_SHIFT=14
+CONFIG_NAMESPACES=y
+# CONFIG_UTS_NS is not set
+# CONFIG_USER_NS is not set
+# CONFIG_PID_NS is not set
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_EXPERT=y
+# CONFIG_FUTEX is not set
+# CONFIG_SLUB_DEBUG is not set
+CONFIG_MODULES=y
+CONFIG_MODULE_FORCE_LOAD=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODULE_FORCE_UNLOAD=y
+CONFIG_CMDLINE_BOOL=y
+CONFIG_CMDLINE=""
+CONFIG_BOARD_EVM6457=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=2
+CONFIG_BLK_DEV_RAM_SIZE=17000
+CONFIG_MISC_DEVICES=y
+# CONFIG_INPUT is not set
+# CONFIG_SERIO is not set
+# CONFIG_VT is not set
+# CONFIG_HW_RANDOM is not set
+# CONFIG_HWMON is not set
+# CONFIG_USB_SUPPORT is not set
+# CONFIG_IOMMU_SUPPORT is not set
+# CONFIG_MISC_FILESYSTEMS is not set
+CONFIG_CRC16=y
+# CONFIG_ENABLE_MUST_CHECK is not set
+# CONFIG_SCHED_DEBUG is not set
+# CONFIG_DEBUG_BUGVERBOSE is not set
diff --git a/arch/c6x/configs/evmc6472_defconfig b/arch/c6x/configs/evmc6472_defconfig
new file mode 100644
index 000000000000..8c46155f6d31
--- /dev/null
+++ b/arch/c6x/configs/evmc6472_defconfig
@@ -0,0 +1,42 @@
+CONFIG_SOC_TMS320C6472=y
+CONFIG_EXPERIMENTAL=y
+# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_SYSVIPC=y
+CONFIG_SPARSE_IRQ=y
+CONFIG_LOG_BUF_SHIFT=14
+CONFIG_NAMESPACES=y
+# CONFIG_UTS_NS is not set
+# CONFIG_USER_NS is not set
+# CONFIG_PID_NS is not set
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_EXPERT=y
+# CONFIG_FUTEX is not set
+# CONFIG_SLUB_DEBUG is not set
+CONFIG_MODULES=y
+CONFIG_MODULE_FORCE_LOAD=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODULE_FORCE_UNLOAD=y
+CONFIG_CMDLINE_BOOL=y
+CONFIG_CMDLINE=""
+# CONFIG_CMDLINE_FORCE is not set
+CONFIG_BOARD_EVM6472=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=2
+CONFIG_BLK_DEV_RAM_SIZE=17000
+CONFIG_MISC_DEVICES=y
+# CONFIG_INPUT is not set
+# CONFIG_SERIO is not set
+# CONFIG_VT is not set
+# CONFIG_HW_RANDOM is not set
+# CONFIG_HWMON is not set
+# CONFIG_USB_SUPPORT is not set
+# CONFIG_IOMMU_SUPPORT is not set
+# CONFIG_MISC_FILESYSTEMS is not set
+CONFIG_CRC16=y
+# CONFIG_ENABLE_MUST_CHECK is not set
+# CONFIG_SCHED_DEBUG is not set
+# CONFIG_DEBUG_BUGVERBOSE is not set
diff --git a/arch/c6x/configs/evmc6474_defconfig b/arch/c6x/configs/evmc6474_defconfig
new file mode 100644
index 000000000000..15533f632313
--- /dev/null
+++ b/arch/c6x/configs/evmc6474_defconfig
@@ -0,0 +1,42 @@
+CONFIG_SOC_TMS320C6474=y
+CONFIG_EXPERIMENTAL=y
+# CONFIG_LOCALVERSION_AUTO is not set
+CONFIG_SYSVIPC=y
+CONFIG_SPARSE_IRQ=y
+CONFIG_LOG_BUF_SHIFT=14
+CONFIG_NAMESPACES=y
+# CONFIG_UTS_NS is not set
+# CONFIG_USER_NS is not set
+# CONFIG_PID_NS is not set
+CONFIG_BLK_DEV_INITRD=y
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+CONFIG_EXPERT=y
+# CONFIG_FUTEX is not set
+# CONFIG_SLUB_DEBUG is not set
+CONFIG_MODULES=y
+CONFIG_MODULE_FORCE_LOAD=y
+CONFIG_MODULE_UNLOAD=y
+CONFIG_MODULE_FORCE_UNLOAD=y
+CONFIG_CMDLINE_BOOL=y
+CONFIG_CMDLINE=""
+# CONFIG_CMDLINE_FORCE is not set
+CONFIG_BOARD_EVM6474=y
+CONFIG_NO_HZ=y
+CONFIG_HIGH_RES_TIMERS=y
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=2
+CONFIG_BLK_DEV_RAM_SIZE=17000
+CONFIG_MISC_DEVICES=y
+# CONFIG_INPUT is not set
+# CONFIG_SERIO is not set
+# CONFIG_VT is not set
+# CONFIG_HW_RANDOM is not set
+# CONFIG_HWMON is not set
+# CONFIG_USB_SUPPORT is not set
+# CONFIG_IOMMU_SUPPORT is not set
+# CONFIG_MISC_FILESYSTEMS is not set
+CONFIG_CRC16=y
+# CONFIG_ENABLE_MUST_CHECK is not set
+# CONFIG_SCHED_DEBUG is not set
+# CONFIG_DEBUG_BUGVERBOSE is not set
diff --git a/arch/c6x/include/asm/Kbuild b/arch/c6x/include/asm/Kbuild
new file mode 100644
index 000000000000..13dcf78adf91
--- /dev/null
+++ b/arch/c6x/include/asm/Kbuild
@@ -0,0 +1,54 @@
+include include/asm-generic/Kbuild.asm
+
+generic-y += atomic.h
+generic-y += auxvec.h
+generic-y += bitsperlong.h
+generic-y += bug.h
+generic-y += bugs.h
+generic-y += cputime.h
+generic-y += current.h
+generic-y += device.h
+generic-y += div64.h
+generic-y += dma.h
+generic-y += emergency-restart.h
+generic-y += errno.h
+generic-y += fb.h
+generic-y += fcntl.h
+generic-y += futex.h
+generic-y += hw_irq.h
+generic-y += io.h
+generic-y += ioctl.h
+generic-y += ioctls.h
+generic-y += ipcbuf.h
+generic-y += irq_regs.h
+generic-y += kdebug.h
+generic-y += kmap_types.h
+generic-y += local.h
+generic-y += mman.h
+generic-y += mmu_context.h
+generic-y += msgbuf.h
+generic-y += param.h
+generic-y += pci.h
+generic-y += percpu.h
+generic-y += pgalloc.h
+generic-y += poll.h
+generic-y += posix_types.h
+generic-y += resource.h
+generic-y += scatterlist.h
+generic-y += segment.h
+generic-y += sembuf.h
+generic-y += shmbuf.h
+generic-y += shmparam.h
+generic-y += siginfo.h
+generic-y += socket.h
+generic-y += sockios.h
+generic-y += stat.h
+generic-y += statfs.h
+generic-y += termbits.h
+generic-y += termios.h
+generic-y += tlbflush.h
+generic-y += topology.h
+generic-y += types.h
+generic-y += ucontext.h
+generic-y += user.h
+generic-y += vga.h
diff --git a/arch/c6x/include/asm/asm-offsets.h b/arch/c6x/include/asm/asm-offsets.h
new file mode 100644
index 000000000000..d370ee36a182
--- /dev/null
+++ b/arch/c6x/include/asm/asm-offsets.h
@@ -0,0 +1 @@
+#include <generated/asm-offsets.h>
diff --git a/arch/c6x/include/asm/bitops.h b/arch/c6x/include/asm/bitops.h
new file mode 100644
index 000000000000..39ab7e874d96
--- /dev/null
+++ b/arch/c6x/include/asm/bitops.h
@@ -0,0 +1,105 @@
+/*
+ *  Port on Texas Instruments TMS320C6x architecture
+ *
+ *  Copyright (C) 2004, 2009, 2010 Texas Instruments Incorporated
+ *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+#ifndef _ASM_C6X_BITOPS_H
+#define _ASM_C6X_BITOPS_H
+
+#ifdef __KERNEL__
+
+#include <linux/bitops.h>
+
+#include <asm/system.h>
+#include <asm/byteorder.h>
+
+/*
+ * clear_bit() doesn't provide any barrier for the compiler.
+ */
+#define smp_mb__before_clear_bit() barrier()
+#define smp_mb__after_clear_bit()  barrier()
+
+/*
+ * We are lucky, DSP is perfect for bitops: do it in 3 cycles
+ */
+
+/**
+ * __ffs - find first bit in word.
+ * @word: The word to search
+ *
+ * Undefined if no bit exists, so code should check against 0 first.
+ * Note __ffs(0) = undef, __ffs(1) = 0, __ffs(0x80000000) = 31.
+ *
+ */
+static inline unsigned long __ffs(unsigned long x)
+{
+	asm (" bitr  .M1  %0,%0\n"
+	     " nop\n"
+	     " lmbd  .L1  1,%0,%0\n"
+	     : "+a"(x));
+
+	return x;
+}
+
+/*
+ * ffz - find first zero in word.
+ * @word: The word to search
+ *
+ * Undefined if no zero exists, so code should check against ~0UL first.
+ */
+#define ffz(x) __ffs(~(x))
+
+/**
+ * fls - find last (most-significant) bit set
+ * @x: the word to search
+ *
+ * This is defined the same way as ffs.
+ * Note fls(0) = 0, fls(1) = 1, fls(0x80000000) = 32.
+ */
+static inline int fls(int x)
+{
+	if (!x)
+		return 0;
+
+	asm (" lmbd  .L1  1,%0,%0\n" : "+a"(x));
+
+	return 32 - x;
+}
+
+/**
+ * ffs - find first bit set
+ * @x: the word to search
+ *
+ * This is defined the same way as
+ * the libc and compiler builtin ffs routines, therefore
+ * differs in spirit from the above ffz (man ffs).
+ * Note ffs(0) = 0, ffs(1) = 1, ffs(0x80000000) = 32.
+ */
+static inline int ffs(int x)
+{
+	if (!x)
+		return 0;
+
+	return __ffs(x) + 1;
+}
+
+#include <asm-generic/bitops/__fls.h>
+#include <asm-generic/bitops/fls64.h>
+#include <asm-generic/bitops/find.h>
+
+#include <asm-generic/bitops/sched.h>
+#include <asm-generic/bitops/hweight.h>
+#include <asm-generic/bitops/lock.h>
+
+#include <asm-generic/bitops/atomic.h>
+#include <asm-generic/bitops/non-atomic.h>
+#include <asm-generic/bitops/le.h>
+#include <asm-generic/bitops/ext2-atomic.h>
+
+#endif /* __KERNEL__ */
+#endif /* _ASM_C6X_BITOPS_H */
diff --git a/arch/c6x/include/asm/byteorder.h b/arch/c6x/include/asm/byteorder.h
new file mode 100644
index 000000000000..166038db342b
--- /dev/null
+++ b/arch/c6x/include/asm/byteorder.h
@@ -0,0 +1,12 @@
+#ifndef _ASM_C6X_BYTEORDER_H
+#define _ASM_C6X_BYTEORDER_H
+
+#include <asm/types.h>
+
+#ifdef _BIG_ENDIAN
+#include <linux/byteorder/big_endian.h>
+#else /* _BIG_ENDIAN */
+#include <linux/byteorder/little_endian.h>
+#endif /* _BIG_ENDIAN */
+
+#endif /* _ASM_BYTEORDER_H */
diff --git a/arch/c6x/include/asm/cache.h b/arch/c6x/include/asm/cache.h
new file mode 100644
index 000000000000..6d521d96d941
--- /dev/null
+++ b/arch/c6x/include/asm/cache.h
@@ -0,0 +1,90 @@
+/*
+ *  Port on Texas Instruments TMS320C6x architecture
+ *
+ *  Copyright (C) 2005, 2006, 2009, 2010 Texas Instruments Incorporated
+ *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+#ifndef _ASM_C6X_CACHE_H
+#define _ASM_C6X_CACHE_H
+
+#include <linux/irqflags.h>
+
+/*
+ * Cache line size
+ */
+#define L1D_CACHE_BYTES   64
+#define L1P_CACHE_BYTES   32
+#define L2_CACHE_BYTES	  128
+
+/*
+ * L2 used as cache
+ */
+#define L2MODE_SIZE	  L2MODE_256K_CACHE
+
+/*
+ * For practical reasons the L1_CACHE_BYTES defines should not be smaller than
+ * the L2 line size
+ */
+#define L1_CACHE_BYTES        L2_CACHE_BYTES
+
+#define L2_CACHE_ALIGN_LOW(x) \
+	(((x) & ~(L2_CACHE_BYTES - 1)))
+#define L2_CACHE_ALIGN_UP(x) \
+	(((x) + (L2_CACHE_BYTES - 1)) & ~(L2_CACHE_BYTES - 1))
+#define L2_CACHE_ALIGN_CNT(x) \
+	(((x) + (sizeof(int) - 1)) & ~(sizeof(int) - 1))
+
+#define ARCH_DMA_MINALIGN	L1_CACHE_BYTES
+#define ARCH_SLAB_MINALIGN	L1_CACHE_BYTES
+
+/*
+ * This is the granularity of hardware cacheability control.
+ */
+#define CACHEABILITY_ALIGN	0x01000000
+
+/*
+ * Align a physical address to MAR regions
+ */
+#define CACHE_REGION_START(v) \
+	(((u32) (v)) & ~(CACHEABILITY_ALIGN - 1))
+#define CACHE_REGION_END(v) \
+	(((u32) (v) + (CACHEABILITY_ALIGN - 1)) & ~(CACHEABILITY_ALIGN - 1))
+
+extern void __init c6x_cache_init(void);
+
+extern void enable_caching(unsigned long start, unsigned long end);
+extern void disable_caching(unsigned long start, unsigned long end);
+
+extern void L1_cache_off(void);
+extern void L1_cache_on(void);
+
+extern void L1P_cache_global_invalidate(void);
+extern void L1D_cache_global_invalidate(void);
+extern void L1D_cache_global_writeback(void);
+extern void L1D_cache_global_writeback_invalidate(void);
+extern void L2_cache_set_mode(unsigned int mode);
+extern void L2_cache_global_writeback_invalidate(void);
+extern void L2_cache_global_writeback(void);
+
+extern void L1P_cache_block_invalidate(unsigned int start, unsigned int end);
+extern void L1D_cache_block_invalidate(unsigned int start, unsigned int end);
+extern void L1D_cache_block_writeback_invalidate(unsigned int start,
+						 unsigned int end);
+extern void L1D_cache_block_writeback(unsigned int start, unsigned int end);
+extern void L2_cache_block_invalidate(unsigned int start, unsigned int end);
+extern void L2_cache_block_writeback(unsigned int start, unsigned int end);
+extern void L2_cache_block_writeback_invalidate(unsigned int start,
+						unsigned int end);
+extern void L2_cache_block_invalidate_nowait(unsigned int start,
+					     unsigned int end);
+extern void L2_cache_block_writeback_nowait(unsigned int start,
+					    unsigned int end);
+
+extern void L2_cache_block_writeback_invalidate_nowait(unsigned int start,
+						       unsigned int end);
+
+#endif /* _ASM_C6X_CACHE_H */
diff --git a/arch/c6x/include/asm/cacheflush.h b/arch/c6x/include/asm/cacheflush.h
new file mode 100644
index 000000000000..df5db90dbe56
--- /dev/null
+++ b/arch/c6x/include/asm/cacheflush.h
@@ -0,0 +1,65 @@
+/*
+ *  Port on Texas Instruments TMS320C6x architecture
+ *
+ *  Copyright (C) 2004, 2009, 2010 Texas Instruments Incorporated
+ *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+#ifndef _ASM_C6X_CACHEFLUSH_H
+#define _ASM_C6X_CACHEFLUSH_H
+
+#include <linux/spinlock.h>
+
+#include <asm/setup.h>
+#include <asm/cache.h>
+#include <asm/mman.h>
+#include <asm/page.h>
+#include <asm/string.h>
+
+/*
+ * virtually-indexed cache management (our cache is physically indexed)
+ */
+#define flush_cache_all()			do {} while (0)
+#define flush_cache_mm(mm)			do {} while (0)
+#define flush_cache_dup_mm(mm)			do {} while (0)
+#define flush_cache_range(mm, start, end)	do {} while (0)
+#define flush_cache_page(vma, vmaddr, pfn)	do {} while (0)
+#define flush_cache_vmap(start, end)		do {} while (0)
+#define flush_cache_vunmap(start, end)		do {} while (0)
+#define ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE 0
+#define flush_dcache_page(page)			do {} while (0)
+#define flush_dcache_mmap_lock(mapping)		do {} while (0)
+#define flush_dcache_mmap_unlock(mapping)	do {} while (0)
+
+/*
+ * physically-indexed cache management
+ */
+#define flush_icache_range(s, e)				  \
+do {								  \
+		L1D_cache_block_writeback((s), (e));		  \
+		L1P_cache_block_invalidate((s), (e));		  \
+} while (0)
+
+#define flush_icache_page(vma, page)					  \
+do {								  \
+	if ((vma)->vm_flags & PROT_EXEC)				  \
+		L1D_cache_block_writeback_invalidate(page_address(page),  \
+			(unsigned long) page_address(page) + PAGE_SIZE)); \
+		L1P_cache_block_invalidate(page_address(page),		  \
+			(unsigned long) page_address(page) + PAGE_SIZE)); \
+} while (0)
+
+
+#define copy_to_user_page(vma, page, vaddr, dst, src, len) \
+do {						     \
+	memcpy(dst, src, len);			     \
+	flush_icache_range((unsigned) (dst), (unsigned) (dst) + (len)); \
+} while (0)
+
+#define copy_from_user_page(vma, page, vaddr, dst, src, len) \
+	memcpy(dst, src, len)
+
+#endif /* _ASM_C6X_CACHEFLUSH_H */
diff --git a/arch/c6x/include/asm/checksum.h b/arch/c6x/include/asm/checksum.h
new file mode 100644
index 000000000000..7246816d6e4d
--- /dev/null
+++ b/arch/c6x/include/asm/checksum.h
@@ -0,0 +1,34 @@
+/*
+ *  Copyright (C) 2011 Texas Instruments Incorporated
+ *  Author: Mark Salter <msalter@redhat.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+#ifndef _ASM_C6X_CHECKSUM_H
+#define _ASM_C6X_CHECKSUM_H
+
+static inline __wsum
+csum_tcpudp_nofold(__be32 saddr, __be32 daddr, unsigned short len,
+		   unsigned short proto, __wsum sum)
+{
+	unsigned long long tmp;
+
+	asm ("add     .d1   %1,%5,%1\n"
+	     "|| addu .l1   %3,%4,%0\n"
+	     "addu    .l1   %2,%0,%0\n"
+#ifndef CONFIG_CPU_BIG_ENDIAN
+	     "|| shl  .s1   %1,8,%1\n"
+#endif
+	     "addu    .l1   %1,%0,%0\n"
+	     "add     .l1   %P0,%p0,%2\n"
+	     : "=&a"(tmp), "+a"(len), "+a"(sum)
+	     : "a" (saddr), "a" (daddr), "a" (proto));
+	return sum;
+}
+#define csum_tcpudp_nofold csum_tcpudp_nofold
+
+#include <asm-generic/checksum.h>
+
+#endif /* _ASM_C6X_CHECKSUM_H */
diff --git a/arch/c6x/include/asm/clkdev.h b/arch/c6x/include/asm/clkdev.h
new file mode 100644
index 000000000000..76a070b1c2e5
--- /dev/null
+++ b/arch/c6x/include/asm/clkdev.h
@@ -0,0 +1,22 @@
+#ifndef _ASM_CLKDEV_H
+#define _ASM_CLKDEV_H
+
+#include <linux/slab.h>
+
+struct clk;
+
+static inline int __clk_get(struct clk *clk)
+{
+	return 1;
+}
+
+static inline void __clk_put(struct clk *clk)
+{
+}
+
+static inline struct clk_lookup_alloc *__clkdev_alloc(size_t size)
+{
+	return kzalloc(size, GFP_KERNEL);
+}
+
+#endif /* _ASM_CLKDEV_H */
diff --git a/arch/c6x/include/asm/clock.h b/arch/c6x/include/asm/clock.h
new file mode 100644
index 000000000000..bcf42b2b4b1e
--- /dev/null
+++ b/arch/c6x/include/asm/clock.h
@@ -0,0 +1,148 @@
+/*
+ * TI C64X clock definitions
+ *
+ * Copyright (C) 2010, 2011 Texas Instruments.
+ * Contributed by: Mark Salter <msalter@redhat.com>
+ *
+ * Copied heavily from arm/mach-davinci/clock.h, so:
+ *
+ * Copyright (C) 2006-2007 Texas Instruments.
+ * Copyright (C) 2008-2009 Deep Root Systems, LLC
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef _ASM_C6X_CLOCK_H
+#define _ASM_C6X_CLOCK_H
+
+#ifndef __ASSEMBLER__
+
+#include <linux/list.h>
+
+/* PLL/Reset register offsets */
+#define PLLCTL		0x100
+#define PLLM		0x110
+#define PLLPRE		0x114
+#define PLLDIV1		0x118
+#define PLLDIV2		0x11c
+#define PLLDIV3		0x120
+#define PLLPOST		0x128
+#define PLLCMD		0x138
+#define PLLSTAT		0x13c
+#define PLLALNCTL	0x140
+#define PLLDCHANGE	0x144
+#define PLLCKEN		0x148
+#define PLLCKSTAT	0x14c
+#define PLLSYSTAT	0x150
+#define PLLDIV4		0x160
+#define PLLDIV5		0x164
+#define PLLDIV6		0x168
+#define PLLDIV7		0x16c
+#define PLLDIV8		0x170
+#define PLLDIV9		0x174
+#define PLLDIV10	0x178
+#define PLLDIV11	0x17c
+#define PLLDIV12	0x180
+#define PLLDIV13	0x184
+#define PLLDIV14	0x188
+#define PLLDIV15	0x18c
+#define PLLDIV16	0x190
+
+/* PLLM register bits */
+#define PLLM_PLLM_MASK	0xff
+#define PLLM_VAL(x)	((x) - 1)
+
+/* PREDIV register bits */
+#define PLLPREDIV_EN	BIT(15)
+#define PLLPREDIV_VAL(x) ((x) - 1)
+
+/* PLLCTL register bits */
+#define PLLCTL_PLLEN	BIT(0)
+#define PLLCTL_PLLPWRDN	BIT(1)
+#define PLLCTL_PLLRST	BIT(3)
+#define PLLCTL_PLLDIS	BIT(4)
+#define PLLCTL_PLLENSRC	BIT(5)
+#define PLLCTL_CLKMODE	BIT(8)
+
+/* PLLCMD register bits */
+#define PLLCMD_GOSTAT	BIT(0)
+
+/* PLLSTAT register bits */
+#define PLLSTAT_GOSTAT	BIT(0)
+
+/* PLLDIV register bits */
+#define PLLDIV_EN	BIT(15)
+#define PLLDIV_RATIO_MASK 0x1f
+#define PLLDIV_RATIO(x) ((x) - 1)
+
+struct pll_data;
+
+struct clk {
+	struct list_head	node;
+	struct module		*owner;
+	const char		*name;
+	unsigned long		rate;
+	int			usecount;
+	u32			flags;
+	struct clk		*parent;
+	struct list_head	children;	/* list of children */
+	struct list_head	childnode;	/* parent's child list node */
+	struct pll_data		*pll_data;
+	u32			div;
+	unsigned long (*recalc) (struct clk *);
+	int (*set_rate) (struct clk *clk, unsigned long rate);
+	int (*round_rate) (struct clk *clk, unsigned long rate);
+};
+
+/* Clock flags: SoC-specific flags start at BIT(16) */
+#define ALWAYS_ENABLED		BIT(1)
+#define CLK_PLL			BIT(2) /* PLL-derived clock */
+#define PRE_PLL			BIT(3) /* source is before PLL mult/div */
+#define FIXED_DIV_PLL		BIT(4) /* fixed divisor from PLL */
+#define FIXED_RATE_PLL		BIT(5) /* fixed ouput rate PLL */
+
+#define MAX_PLL_SYSCLKS 16
+
+struct pll_data {
+	void __iomem *base;
+	u32 num;
+	u32 flags;
+	u32 input_rate;
+	u32 bypass_delay; /* in loops */
+	u32 reset_delay;  /* in loops */
+	u32 lock_delay;   /* in loops */
+	struct clk sysclks[MAX_PLL_SYSCLKS + 1];
+};
+
+/* pll_data flag bit */
+#define PLL_HAS_PRE	BIT(0)
+#define PLL_HAS_MUL	BIT(1)
+#define PLL_HAS_POST	BIT(2)
+
+#define CLK(dev, con, ck)	\
+	{			\
+		.dev_id = dev,	\
+		.con_id = con,	\
+		.clk = ck,	\
+	}			\
+
+extern void c6x_clks_init(struct clk_lookup *clocks);
+extern int clk_register(struct clk *clk);
+extern void clk_unregister(struct clk *clk);
+extern void c64x_setup_clocks(void);
+
+extern struct pll_data c6x_soc_pll1;
+
+extern struct clk clkin1;
+extern struct clk c6x_core_clk;
+extern struct clk c6x_i2c_clk;
+extern struct clk c6x_watchdog_clk;
+extern struct clk c6x_mcbsp1_clk;
+extern struct clk c6x_mcbsp2_clk;
+extern struct clk c6x_mdio_clk;
+
+#endif
+
+#endif /* _ASM_C6X_CLOCK_H */
diff --git a/arch/c6x/include/asm/delay.h b/arch/c6x/include/asm/delay.h
new file mode 100644
index 000000000000..f314c2e9eb54
--- /dev/null
+++ b/arch/c6x/include/asm/delay.h
@@ -0,0 +1,67 @@
+/*
+ *  Port on Texas Instruments TMS320C6x architecture
+ *
+ *  Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated
+ *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+#ifndef _ASM_C6X_DELAY_H
+#define _ASM_C6X_DELAY_H
+
+#include <linux/kernel.h>
+
+extern unsigned int ticks_per_ns_scaled;
+
+static inline void __delay(unsigned long loops)
+{
+	uint32_t tmp;
+
+	/* 6 cycles per loop */
+	asm volatile ("        mv    .s1  %0,%1\n"
+		      "0: [%1] b     .s1  0b\n"
+		      "        add   .l1  -6,%0,%0\n"
+		      "        cmplt .l1  1,%0,%1\n"
+		      "        nop   3\n"
+		      : "+a"(loops), "=A"(tmp));
+}
+
+static inline void _c6x_tickdelay(unsigned int x)
+{
+	uint32_t cnt, endcnt;
+
+	asm volatile ("        mvc   .s2   TSCL,%0\n"
+		      "        add   .s2x  %0,%1,%2\n"
+		      " ||     mvk   .l2   1,B0\n"
+		      "0: [B0] b     .s2   0b\n"
+		      "        mvc   .s2   TSCL,%0\n"
+		      "        sub   .s2   %0,%2,%0\n"
+		      "        cmpgt .l2   0,%0,B0\n"
+		      "        nop   2\n"
+		      : "=b"(cnt), "+a"(x), "=b"(endcnt) : : "B0");
+}
+
+/* use scaled math to avoid slow division */
+#define C6X_NDELAY_SCALE 10
+
+static inline void _ndelay(unsigned int n)
+{
+	_c6x_tickdelay((ticks_per_ns_scaled * n) >> C6X_NDELAY_SCALE);
+}
+
+static inline void _udelay(unsigned int n)
+{
+	while (n >= 10) {
+		_ndelay(10000);
+		n -= 10;
+	}
+	while (n-- > 0)
+		_ndelay(1000);
+}
+
+#define udelay(x) _udelay((unsigned int)(x))
+#define ndelay(x) _ndelay((unsigned int)(x))
+
+#endif /* _ASM_C6X_DELAY_H */
diff --git a/arch/c6x/include/asm/dma-mapping.h b/arch/c6x/include/asm/dma-mapping.h
new file mode 100644
index 000000000000..03579fd99dba
--- /dev/null
+++ b/arch/c6x/include/asm/dma-mapping.h
@@ -0,0 +1,91 @@
+/*
+ *  Port on Texas Instruments TMS320C6x architecture
+ *
+ *  Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated
+ *  Author: Aurelien Jacquiot <aurelien.jacquiot@ti.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ */
+#ifndef _ASM_C6X_DMA_MAPPING_H
+#define _ASM_C6X_DMA_MAPPING_H
+
+#include <linux/dma-debug.h>
+#include <asm-generic/dma-coherent.h>
+
+#define dma_supported(d, m)	1
+
+static inline int dma_set_mask(struct device *dev, u64 dma_mask)
+{
+	if (!dev->dma_mask || !dma_supported(dev, dma_mask))
+		return -EIO;
+
+	*dev->dma_mask = dma_mask;
+
+	return 0;
+}
+
+/*
+ * DMA errors are defined by all-bits-set in the DMA address.
+ */
+static inline int dma_mapping_error(struct device *dev, dma_addr_t dma_addr)
+{
+	return dma_addr == ~0;
+}
+
+extern dma_addr_t dma_map_single(struct device *dev, void *cpu_addr,
+				 size_t size, enum dma_data_direction dir);
+
+extern void dma_unmap_single(struct device *dev, dma_addr_t handle,
+			     size_t size, enum dma_data_direction dir);
+
+extern int dma_map_sg(struct device *dev, struct scatterlist *sglist,
+		      int nents, enum dma_data_direction direction);
+
+extern void dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
+			 int nents, enum dma_data_direction direction);
+
+static inline dma_addr_t dma_map_page(struct device *dev, struct page *page,
+				      unsigned long offset, size_t size,
+				      enum dma_data_direction dir)
+{
+	dma_addr_t handle;
+
+	handle = dma_map_single(dev, page_address(page) + offset, size, dir);
+
+	debug_dma_map_page(dev, page, offset, size, dir, handle, false);
+
+	return handle;
+}
+
+static inline void dma_unmap_page(struct device *dev, dma_addr_t handle,
+		size_t size, enum dma_data_direction dir)
+{
+	dma_unmap_single(dev, handle, size, dir);
+
+	debug_dma_unmap_page(dev, handle, size, dir, false);
+}
+
+extern void dma_sync_single_for_cpu(struct device *dev, dma_addr_t handle,
+				    size_t size, enum dma_data_direction dir);
+
+extern void dma_sync_single_for_device(struct device *dev, dma_addr_t handle,
+				       size_t size,
+				       enum dma_data_direction dir);
+
+extern void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sg,
+				int nents, enum dma_data_direction dir);
+
+extern void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sg,
+				   int nents, enum dma_data_direction dir);
+
+extern void coherent_mem_init(u32 start, u32 size);
+extern void *dma_alloc_coherent(struct device *, size_t, dma_addr_t *, gfp_t);
+extern void dma_free_coherent(struct device *, size_t, void *, dma_addr_t);
+
+#define dma_alloc_noncoherent(d, s, h, f) dma_alloc_coherent((d), (s), (h), (f))
+#define dma_free_noncoherent(d, s, v, h)  dma_free_coherent((d), (s), (v), (h))
+
+#endif	/* _ASM_C6X_DMA_MAPPING_H */
diff --git a/arch/c6x/include/asm/dscr.h b/arch/c6x/include/asm/dscr.h
new file mode 100644
index 000000000000..561ba8332042
--- /dev/null
+++ b/arch/c6x/include/asm/dscr.h
@@ -0,0 +1,34 @@
+/*
+ *  Copyright (C) 2011 Texas Instruments Incorporated
+ *  Author: Mark Salter <msalter@redhat.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ */
+#ifndef _ASM_C6X_DSCR_H
+#define _ASM_C6X_DSCR_H
+
+enum dscr_devstate_t {
+	DSCR_DEVSTATE_ENABLED,
+	DSCR_DEVSTATE_DISABLED,
+};
+
+/*
+ * Set the device state of the device with the given ID.
+ *
+ * Individual drivers should use this to enable or disable the
+ * hardware device. The devid used to identify the device being
+ * controlled should be a property in the device's tree node.
+ */
+extern void dscr_set_devstate(int devid, enum dscr_devstate_t state);
+
+/*
+ * Assert or de-assert an RMII reset.
+ */
+extern void dscr_rmii_reset(int id, int assert);
+
+extern void dscr_probe(void);
+
+#endif /* _ASM_C6X_DSCR_H */
diff --git a/arch/c6x/include/asm/elf.h b/arch/c6x/include/asm/elf.h
new file mode 100644
index 000000000000..d57865ba2c44
--- /dev/null
+++ b/arch/c6x/include/asm/elf.h
@@ -0,0 +1,113 @@
+/*
+ *  Port on Texas Instruments TMS320C6x architecture
+ *
+ *  Copyright (C) 2004, 2009, 2010 Texas Instruments Incorporated
+ *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+#ifndef _ASM_C6X_ELF_H
+#define _ASM_C6X_ELF_H
+
+/*
+ * ELF register definitions..
+ */
+#include <asm/ptrace.h>
+
+typedef unsigned long elf_greg_t;
+typedef unsigned long elf_fpreg_t;
+
+#define ELF_NGREG  58
+#define ELF_NFPREG 1
+
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+typedef elf_fpreg_t elf_fpregset_t[ELF_NFPREG];
+
+/*
+ * This is used to ensure we don't load something for the wrong architecture.
+ */
+#define elf_check_arch(x) ((x)->e_machine == EM_TI_C6000)
+
+#define elf_check_const_displacement(x) (1)
+
+/*
+ * These are used to set parameters in the core dumps.
+ */
+#ifdef __LITTLE_ENDIAN__
+#define ELF_DATA	ELFDATA2LSB
+#else
+#define ELF_DATA	ELFDATA2MSB
+#endif
+
+#define ELF_CLASS	ELFCLASS32
+#define ELF_ARCH	EM_TI_C6000
+
+/* Nothing for now. Need to setup DP... */
+#define ELF_PLAT_INIT(_r)
+
+#define USE_ELF_CORE_DUMP
+#define ELF_EXEC_PAGESIZE	4096
+
+#define ELF_CORE_COPY_REGS(_dest, _regs)		\
+	memcpy((char *) &_dest, (char *) _regs,		\
+	sizeof(struct pt_regs));
+
+/* This yields a mask that user programs can use to figure out what
+   instruction set this cpu supports.  */
+
+#define ELF_HWCAP	(0)
+
+/* This yields a string that ld.so will use to load implementation
+   specific libraries for optimization.  This is more specific in
+   intent than poking at uname or /proc/cpuinfo.  */
+
+#define ELF_PLATFORM  (NULL)
+
+#define SET_PERSONALITY(ex) set_personality(PER_LINUX)
+
+/* C6X specific section types */
+#define SHT_C6000_UNWIND	0x70000001
+#define SHT_C6000_PREEMPTMAP	0x70000002
+#define SHT_C6000_ATTRIBUTES	0x70000003
+
+/* C6X specific DT_ tags */
+#define DT_C6000_DSBT_BASE	0x70000000
+#define DT_C6000_DSBT_SIZE	0x70000001
+#define DT_C6000_PREEMPTMAP	0x70000002
+#define DT_C6000_DSBT_INDEX	0x70000003
+
+/* C6X specific relocs */
+#define R_C6000_NONE		0
+#define R_C6000_ABS32		1
+#define R_C6000_ABS16		2
+#define R_C6000_ABS8		3
+#define R_C6000_PCR_S21		4
+#define R_C6000_PCR_S12		5
+#define R_C6000_PCR_S10		6
+#define R_C6000_PCR_S7		7
+#define R_C6000_ABS_S16		8
+#define R_C6000_ABS_L16		9
+#define R_C6000_ABS_H16		10
+#define R_C6000_SBR_U15_B	11
+#define R_C6000_SBR_U15_H	12
+#define R_C6000_SBR_U15_W	13
+#define R_C6000_SBR_S16		14
+#define R_C6000_SBR_L16_B	15
+#define R_C6000_SBR_L16_H	16
+#define R_C6000_SBR_L16_W	17
+#define R_C6000_SBR_H16_B	18
+#define R_C6000_SBR_H16_H	19
+#define R_C6000_SBR_H16_W	20
+#define R_C6000_SBR_GOT_U15_W	21
+#define R_C6000_SBR_GOT_L16_W	22
+#define R_C6000_SBR_GOT_H16_W	23
+#define R_C6000_DSBT_INDEX	24
+#define R_C6000_PREL31		25
+#define R_C6000_COPY		26
+#define R_C6000_ALIGN		253
+#define R_C6000_FPHEAD		254
+#define R_C6000_NOCMP		255
+
+#endif /*_ASM_C6X_ELF_H */
diff --git a/arch/c6x/include/asm/ftrace.h b/arch/c6x/include/asm/ftrace.h
new file mode 100644
index 000000000000..3701958d3d1c
--- /dev/null
+++ b/arch/c6x/include/asm/ftrace.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_C6X_FTRACE_H
+#define _ASM_C6X_FTRACE_H
+
+/* empty */
+
+#endif /* _ASM_C6X_FTRACE_H */
diff --git a/arch/c6x/include/asm/hardirq.h b/arch/c6x/include/asm/hardirq.h
new file mode 100644
index 000000000000..9621954f98f4
--- /dev/null
+++ b/arch/c6x/include/asm/hardirq.h
@@ -0,0 +1,20 @@
+/*
+ *  Port on Texas Instruments TMS320C6x architecture
+ *
+ *  Copyright (C) 2004, 2009, 2010 Texas Instruments Incorporated
+ *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+
+#ifndef _ASM_C6X_HARDIRQ_H
+#define _ASM_C6X_HARDIRQ_H
+
+extern void ack_bad_irq(int irq);
+#define ack_bad_irq ack_bad_irq
+
+#include <asm-generic/hardirq.h>
+
+#endif /* _ASM_C6X_HARDIRQ_H */
diff --git a/arch/c6x/include/asm/irq.h b/arch/c6x/include/asm/irq.h
new file mode 100644
index 000000000000..a6ae3c9d9c40
--- /dev/null
+++ b/arch/c6x/include/asm/irq.h
@@ -0,0 +1,302 @@
+/*
+ *  Port on Texas Instruments TMS320C6x architecture
+ *
+ *  Copyright (C) 2004, 2006, 2009, 2010, 2011 Texas Instruments Incorporated
+ *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+ *
+ *  Large parts taken directly from powerpc.
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+#ifndef _ASM_C6X_IRQ_H
+#define _ASM_C6X_IRQ_H
+
+#include <linux/threads.h>
+#include <linux/list.h>
+#include <linux/radix-tree.h>
+#include <asm/percpu.h>
+
+#define irq_canonicalize(irq)  (irq)
+
+/*
+ * The C64X+ core has 16 IRQ vectors. One each is used by Reset and NMI. Two
+ * are reserved. The remaining 12 vectors are used to route SoC interrupts.
+ * These interrupt vectors are prioritized with IRQ 4 having the highest
+ * priority and IRQ 15 having the lowest.
+ *
+ * The C64x+ megamodule provides a PIC which combines SoC IRQ sources into a
+ * single core IRQ vector. There are four combined sources, each of which
+ * feed into one of the 12 general interrupt vectors. The remaining 8 vectors
+ * can each route a single SoC interrupt directly.
+ */
+#define NR_PRIORITY_IRQS 16
+
+#define NR_IRQS_LEGACY	NR_PRIORITY_IRQS
+
+/* Total number of virq in the platform */
+#define NR_IRQS		256
+
+/* This number is used when no interrupt has been assigned */
+#define NO_IRQ		0
+
+/* This type is the placeholder for a hardware interrupt number. It has to
+ * be big enough to enclose whatever representation is used by a given
+ * platform.
+ */
+typedef unsigned long irq_hw_number_t;
+
+/* Interrupt controller "host" data structure. This could be defined as a
+ * irq domain controller. That is, it handles the mapping between hardware
+ * and virtual interrupt numbers for a given interrupt domain. The host
+ * structure is generally created by the PIC code for a given PIC instance
+ * (though a host can cover more than one PIC if they have a flat number
+ * model). It's the host callbacks that are responsible for setting the
+ * irq_chip on a given irq_desc after it's been mapped.
+ *
+ * The host code and data structures are fairly agnostic to the fact that
+ * we use an open firmware device-tree. We do have references to struct
+ * device_node in two places: in irq_find_host() to find the host matching
+ * a given interrupt controller node, and of course as an argument to its
+ * counterpart host->ops->match() callback. However, those are treated as
+ * generic pointers by the core and the fact that it's actually a device-node
+ * pointer is purely a convention between callers and implementation. This
+ * code could thus be used on other architectures by replacing those two
+ * by some sort of arch-specific void * "token" used to identify interrupt
+ * controllers.
+ */
+struct irq_host;
+struct radix_tree_root;
+struct device_node;
+
+/* Functions below are provided by the host and called whenever a new mapping
+ * is created or an old mapping is disposed. The host can then proceed to
+ * whatever internal data structures management is required. It also needs
+ * to setup the irq_desc when returning from map().
+ */
+struct irq_host_ops {
+	/* Match an interrupt controller device node to a host, returns
+	 * 1 on a match
+	 */
+	int (*match)(struct irq_host *h, struct device_node *node);
+
+	/* Create or update a mapping between a virtual irq number and a hw
+	 * irq number. This is called only once for a given mapping.
+	 */
+	int (*map)(struct irq_host *h, unsigned int virq, irq_hw_number_t hw);
+
+	/* Dispose of such a mapping */
+	void (*unmap)(struct irq_host *h, unsigned int virq);
+
+	/* Translate device-tree interrupt specifier from raw format coming
+	 * from the firmware to a irq_hw_number_t (interrupt line number) and
+	 * type (sense) that can be passed to set_irq_type(). In the absence
+	 * of this callback, irq_create_of_mapping() and irq_of_parse_and_map()
+	 * will return the hw number in the first cell and IRQ_TYPE_NONE for
+	 * the type (which amount to keeping whatever default value the
+	 * interrupt controller has for that line)
+	 */
+	int (*xlate)(struct irq_host *h, struct device_node *ctrler,
+		     const u32 *intspec, unsigned int intsize,
+		     irq_hw_number_t *out_hwirq, unsigned int *out_type);
+};
+
+struct irq_host {
+	struct list_head	link;
+
+	/* type of reverse mapping technique */
+	unsigned int		revmap_type;
+#define IRQ_HOST_MAP_PRIORITY   0 /* core priority irqs, get irqs 1..15 */
+#define IRQ_HOST_MAP_NOMAP	1 /* no fast reverse mapping */
+#define IRQ_HOST_MAP_LINEAR	2 /* linear map of interrupts */
+#define IRQ_HOST_MAP_TREE	3 /* radix tree */
+	union {
+		struct {
+			unsigned int size;
+			unsigned int *revmap;
+		} linear;
+		struct radix_tree_root tree;
+	} revmap_data;
+	struct irq_host_ops	*ops;
+	void			*host_data;
+	irq_hw_number_t		inval_irq;
+
+	/* Optional device node pointer */
+	struct device_node	*of_node;
+};
+
+struct irq_data;
+extern irq_hw_number_t irqd_to_hwirq(struct irq_data *d);
+extern irq_hw_number_t virq_to_hw(unsigned int virq);
+extern bool virq_is_host(unsigned int virq, struct irq_host *host);
+
+/**
+ * irq_alloc_host - Allocate a new irq_host data structure
+ * @of_node: optional device-tree node of the interrupt controller
+ * @revmap_type: type of reverse mapping to use
+ * @revmap_arg: for IRQ_HOST_MAP_LINEAR linear only: size of the map
+ * @ops: map/unmap host callbacks
+ * @inval_irq: provide a hw number in that host space that is always invalid
+ *
+ * Allocates and initialize and irq_host structure. Note that in the case of
+ * IRQ_HOST_MAP_LEGACY, the map() callback will be called before this returns
+ * for all legacy interrupts except 0 (which is always the invalid irq for
+ * a legacy controller). For a IRQ_HOST_MAP_LINEAR, the map is allocated by
+ * this call as well. For a IRQ_HOST_MAP_TREE, the radix tree will be allocated
+ * later during boot automatically (the reverse mapping will use the slow path
+ * until that happens).
+ */
+extern struct irq_host *irq_alloc_host(struct device_node *of_node,
+				       unsigned int revmap_type,
+				       unsigned int revmap_arg,
+				       struct irq_host_ops *ops,
+				       irq_hw_number_t inval_irq);
+
+
+/**
+ * irq_find_host - Locates a host for a given device node
+ * @node: device-tree node of the interrupt controller
+ */
+extern struct irq_host *irq_find_host(struct device_node *node);
+
+
+/**
+ * irq_set_default_host - Set a "default" host
+ * @host: default host pointer
+ *
+ * For convenience, it's possible to set a "default" host that will be used
+ * whenever NULL is passed to irq_create_mapping(). It makes life easier for
+ * platforms that want to manipulate a few hard coded interrupt numbers that
+ * aren't properly represented in the device-tree.
+ */
+extern void irq_set_default_host(struct irq_host *host);
+
+
+/**
+ * irq_set_virq_count - Set the maximum number of virt irqs
+ * @count: number of linux virtual irqs, capped with NR_IRQS
+ *
+ * This is mainly for use by platforms like iSeries who want to program
+ * the virtual irq number in the controller to avoid the reverse mapping
+ */
+extern void irq_set_virq_count(unsigned int count);
+
+
+/**
+ * irq_create_mapping - Map a hardware interrupt into linux virq space
+ * @host: host owning this hardware interrupt or NULL for default host
+ * @hwirq: hardware irq number in that host space
+ *
+ * Only one mapping per hardware interrupt is permitted. Returns a linux
+ * virq number.
+ * If the sense/trigger is to be specified, set_irq_type() should be called
+ * on the number returned from that call.
+ */
+extern unsigned int irq_create_mapping(struct irq_host *host,
+				       irq_hw_number_t hwirq);
+
+
+/**
+ * irq_dispose_mapping - Unmap an interrupt
+ * @virq: linux virq number of the interrupt to unmap
+ */
+extern void irq_dispose_mapping(unsigned int virq);
+
+/**
+ * irq_find_mapping - Find a linux virq from an hw irq number.
+ * @host: host owning this hardware interrupt
+ * @hwirq: hardware irq number in that host space
+ *
+ * This is a slow path, for use by generic code. It's expected that an
+ * irq controller implementation directly calls the appropriate low level
+ * mapping function.
+ */
+extern unsigned int irq_find_mapping(struct irq_host *host,
+				     irq_hw_number_t hwirq);
+
+/**
+ * irq_create_direct_mapping - Allocate a virq for direct mapping
+ * @host: host to allocate the virq for or NULL for default host
+ *
+ * This routine is used for irq controllers which can choose the hardware
+ * interrupt numbers they generate. In such a case it's simplest to use
+ * the linux virq as the hardware interrupt number.
+ */
+extern unsigned int irq_create_direct_mapping(struct irq_host *host);
+
+/**
+ * irq_radix_revmap_insert - Insert a hw irq to linux virq number mapping.
+ * @host: host owning this hardware interrupt
+ * @virq: linux irq number
+ * @hwirq: hardware irq number in that host space
+ *
+ * This is for use by irq controllers that use a radix tree reverse
+ * mapping for fast lookup.
+ */
+extern void irq_radix_revmap_insert(struct irq_host *host, unsigned int virq,
+				    irq_hw_number_t hwirq);
+
+/**
+ * irq_radix_revmap_lookup - Find a linux virq from a hw irq number.
+ * @host: host owning this hardware interrupt
+ * @hwirq: hardware irq number in that host space
+ *
+ * This is a fast path, for use by irq controller code that uses radix tree
+ * revmaps
+ */
+extern unsigned int irq_radix_revmap_lookup(struct irq_host *host,
+					    irq_hw_number_t hwirq);
+
+/**
+ * irq_linear_revmap - Find a linux virq from a hw irq number.
+ * @host: host owning this hardware interrupt
+ * @hwirq: hardware irq number in that host space
+ *
+ * This is a fast path, for use by irq controller code that uses linear
+ * revmaps. It does fallback to the slow path if the revmap doesn't exist
+ * yet and will create the revmap entry with appropriate locking
+ */
+
+extern unsigned int irq_linear_revmap(struct irq_host *host,
+				      irq_hw_number_t hwirq);
+
+
+
+/**
+ * irq_alloc_virt - Allocate virtual irq numbers
+ * @host: host owning these new virtual irqs
+ * @count: number of consecutive numbers to allocate
+ * @hint: pass a hint number, the allocator will try to use a 1:1 mapping
+ *
+ * This is a low level function that is used internally by irq_create_mapping()
+ * and that can be used by some irq controllers implementations for things
+ * like allocating ranges of numbers for MSIs. The revmaps are left untouched.
+ */
+extern unsigned int irq_alloc_virt(struct irq_host *host,
+				   unsigned int count,
+				   unsigned int hint);
+
+/**
+ * irq_free_virt - Free virtual irq numbers
+ * @virq: virtual irq number of the first interrupt to free
+ * @count: number of interrupts to free
+ *
+ * This function is the opposite of irq_alloc_virt. It will not clear reverse
+ * maps, this should be done previously by unmap'ing the interrupt. In fact,
+ * all interrupts covered by the range being freed should have been unmapped
+ * prior to calling this.
+ */
+extern void irq_free_virt(unsigned int virq, unsigned int count);
+
+extern void __init init_pic_c64xplus(void);
+
+extern void init_IRQ(void);
+
+struct pt_regs;
+
+extern asmlinkage void c6x_do_IRQ(unsigned int prio, struct pt_regs *regs);
+
+extern unsigned long irq_err_count;
+
+#endif /* _ASM_C6X_IRQ_H */
diff --git a/arch/c6x/include/asm/irqflags.h b/arch/c6x/include/asm/irqflags.h
new file mode 100644
index 000000000000..cf78e09e18c3
--- /dev/null
+++ b/arch/c6x/include/asm/irqflags.h
@@ -0,0 +1,72 @@
+/*
+ *  C6X IRQ flag handling
+ *
+ * Copyright (C) 2010 Texas Instruments Incorporated
+ * Written by Mark Salter (msalter@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#ifndef _ASM_IRQFLAGS_H
+#define _ASM_IRQFLAGS_H
+
+#ifndef __ASSEMBLY__
+
+/* read interrupt enabled status */
+static inline unsigned long arch_local_save_flags(void)
+{
+	unsigned long flags;
+
+	asm volatile (" mvc .s2 CSR,%0\n" : "=b"(flags));
+	return flags;
+}
+
+/* set interrupt enabled status */
+static inline void arch_local_irq_restore(unsigned long flags)
+{
+	asm volatile (" mvc .s2 %0,CSR\n" : : "b"(flags));
+}
+
+/* unconditionally enable interrupts */
+static inline void arch_local_irq_enable(void)
+{
+	unsigned long flags = arch_local_save_flags();
+	flags |= 1;
+	arch_local_irq_restore(flags);
+}
+
+/* unconditionally disable interrupts */
+static inline void arch_local_irq_disable(void)
+{
+	unsigned long flags = arch_local_save_flags();
+	flags &= ~1;
+	arch_local_irq_restore(flags);
+}
+
+/* get status and disable interrupts */
+static inline unsigned long arch_local_irq_save(void)
+{
+	unsigned long flags;
+
+	flags = arch_local_save_flags();
+	arch_local_irq_restore(flags & ~1);
+	return flags;
+}
+
+/* test flags */
+static inline int arch_irqs_disabled_flags(unsigned long flags)
+{
+	return (flags & 1) == 0;
+}
+
+/* test hardware interrupt enable bit */
+static inline int arch_irqs_disabled(void)
+{
+	return arch_irqs_disabled_flags(arch_local_save_flags());
+}
+
+#endif /* __ASSEMBLY__ */
+#endif /* __ASM_IRQFLAGS_H */
diff --git a/arch/c6x/include/asm/linkage.h b/arch/c6x/include/asm/linkage.h
new file mode 100644
index 000000000000..376925c47d57
--- /dev/null
+++ b/arch/c6x/include/asm/linkage.h
@@ -0,0 +1,30 @@
+#ifndef _ASM_C6X_LINKAGE_H
+#define _ASM_C6X_LINKAGE_H
+
+#ifdef __ASSEMBLER__
+
+#define __ALIGN		.align 2
+#define __ALIGN_STR	".align 2"
+
+#ifndef __DSBT__
+#define ENTRY(name)		\
+	.global name @		\
+	__ALIGN @		\
+name:
+#else
+#define ENTRY(name)		\
+	.global name @		\
+	.hidden name @		\
+	__ALIGN @		\
+name:
+#endif
+
+#define ENDPROC(name)		\
+	.type name, @function @	\
+	.size name, . - name
+
+#endif
+
+#include <asm-generic/linkage.h>
+
+#endif /* _ASM_C6X_LINKAGE_H */
diff --git a/arch/c6x/include/asm/megamod-pic.h b/arch/c6x/include/asm/megamod-pic.h
new file mode 100644
index 000000000000..eca0a8678034
--- /dev/null
+++ b/arch/c6x/include/asm/megamod-pic.h
@@ -0,0 +1,9 @@
+#ifndef _C6X_MEGAMOD_PIC_H
+#define _C6X_MEGAMOD_PIC_H
+
+#ifdef __KERNEL__
+
+extern void __init megamod_pic_init(void);
+
+#endif /* __KERNEL__ */
+#endif /* _C6X_MEGAMOD_PIC_H */
diff --git a/arch/c6x/include/asm/mmu.h b/arch/c6x/include/asm/mmu.h
new file mode 100644
index 000000000000..41592bf16067
--- /dev/null
+++ b/arch/c6x/include/asm/mmu.h
@@ -0,0 +1,18 @@
+/*
+ *  Port on Texas Instruments TMS320C6x architecture
+ *
+ *  Copyright (C) 2004, 2009, 2010 Texas Instruments Incorporated
+ *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+#ifndef _ASM_C6X_MMU_H
+#define _ASM_C6X_MMU_H
+
+typedef struct {
+	unsigned long		end_brk;
+} mm_context_t;
+
+#endif /* _ASM_C6X_MMU_H */
diff --git a/arch/c6x/include/asm/module.h b/arch/c6x/include/asm/module.h
new file mode 100644
index 000000000000..a453f9744f42
--- /dev/null
+++ b/arch/c6x/include/asm/module.h
@@ -0,0 +1,33 @@
+/*
+ *  Port on Texas Instruments TMS320C6x architecture
+ *
+ *  Copyright (C) 2004, 2009, 2010 Texas Instruments Incorporated
+ *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+ *
+ *  Updated for 2.6.34 by: Mark Salter (msalter@redhat.com)
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+#ifndef _ASM_C6X_MODULE_H
+#define _ASM_C6X_MODULE_H
+
+#define Elf_Shdr	Elf32_Shdr
+#define Elf_Sym		Elf32_Sym
+#define Elf_Ehdr	Elf32_Ehdr
+#define Elf_Addr	Elf32_Addr
+#define Elf_Word	Elf32_Word
+
+/*
+ * This file contains the C6x architecture specific module code.
+ */
+struct mod_arch_specific {
+};
+
+struct loaded_sections {
+	unsigned int new_vaddr;
+	unsigned int loaded;
+};
+
+#endif /* _ASM_C6X_MODULE_H */
diff --git a/arch/c6x/include/asm/mutex.h b/arch/c6x/include/asm/mutex.h
new file mode 100644
index 000000000000..7a7248e0462d
--- /dev/null
+++ b/arch/c6x/include/asm/mutex.h
@@ -0,0 +1,6 @@
+#ifndef _ASM_C6X_MUTEX_H
+#define _ASM_C6X_MUTEX_H
+
+#include <asm-generic/mutex-null.h>
+
+#endif /* _ASM_C6X_MUTEX_H */
diff --git a/arch/c6x/include/asm/page.h b/arch/c6x/include/asm/page.h
new file mode 100644
index 000000000000..d18e2b0c7aea
--- /dev/null
+++ b/arch/c6x/include/asm/page.h
@@ -0,0 +1,11 @@
+#ifndef _ASM_C6X_PAGE_H
+#define _ASM_C6X_PAGE_H
+
+#define VM_DATA_DEFAULT_FLAGS \
+	(VM_READ | VM_WRITE | \
+	((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0) | \
+		 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
+
+#include <asm-generic/page.h>
+
+#endif /* _ASM_C6X_PAGE_H */
diff --git a/arch/c6x/include/asm/pgtable.h b/arch/c6x/include/asm/pgtable.h
new file mode 100644
index 000000000000..68c8af4f1f97
--- /dev/null
+++ b/arch/c6x/include/asm/pgtable.h
@@ -0,0 +1,81 @@
+/*
+ *  Port on Texas Instruments TMS320C6x architecture
+ *
+ *  Copyright (C) 2004, 2009, 2010 Texas Instruments Incorporated
+ *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+#ifndef _ASM_C6X_PGTABLE_H
+#define _ASM_C6X_PGTABLE_H
+
+#include <asm-generic/4level-fixup.h>
+
+#include <asm/setup.h>
+#include <asm/page.h>
+
+/*
+ * All 32bit addresses are effectively valid for vmalloc...
+ * Sort of meaningless for non-VM targets.
+ */
+#define	VMALLOC_START	0
+#define	VMALLOC_END	0xffffffff
+
+#define pgd_present(pgd)	(1)
+#define pgd_none(pgd)		(0)
+#define pgd_bad(pgd)		(0)
+#define pgd_clear(pgdp)
+#define kern_addr_valid(addr) (1)
+
+#define pmd_offset(a, b)	((void *)0)
+#define pmd_none(x)		(!pmd_val(x))
+#define pmd_present(x)		(pmd_val(x))
+#define pmd_clear(xp)		do { set_pmd(xp, __pmd(0)); } while (0)
+#define pmd_bad(x)		(pmd_val(x) & ~PAGE_MASK)
+
+#define PAGE_NONE		__pgprot(0)    /* these mean nothing to NO_MM */
+#define PAGE_SHARED		__pgprot(0)    /* these mean nothing to NO_MM */
+#define PAGE_COPY		__pgprot(0)    /* these mean nothing to NO_MM */
+#define PAGE_READONLY	        __pgprot(0)    /* these mean nothing to NO_MM */
+#define PAGE_KERNEL		__pgprot(0)    /* these mean nothing to NO_MM */
+#define pgprot_noncached(prot)	(prot)
+
+extern void paging_init(void);
+
+#define __swp_type(x)		(0)
+#define __swp_offset(x)		(0)
+#define __swp_entry(typ, off)	((swp_entry_t) { ((typ) | ((off) << 7)) })
+#define __pte_to_swp_entry(pte)	((swp_entry_t) { pte_val(pte) })
+#define __swp_entry_to_pte(x)	((pte_t) { (x).val })
+
+static inline int pte_file(pte_t pte)
+{
+	return 0;
+}
+
+#define set_pte(pteptr, pteval) (*(pteptr) = pteval)
+#define set_pte_at(mm, addr, ptep, pteval) set_pte(ptep, pteval)
+
+/*
+ * ZERO_PAGE is a global shared page that is always zero: used
+ * for zero-mapped memory areas etc..
+ */
+#define ZERO_PAGE(vaddr)	virt_to_page(empty_zero_page)
+extern unsigned long empty_zero_page;
+
+#define swapper_pg_dir ((pgd_t *) 0)
+
+/*
+ * No page table caches to initialise
+ */
+#define pgtable_cache_init()   do { } while (0)
+#define io_remap_pfn_range      remap_pfn_range
+
+#define io_remap_page_range(vma, vaddr, paddr, size, prot)		\
+		remap_pfn_range(vma, vaddr, (paddr) >> PAGE_SHIFT, size, prot)
+
+#include <asm-generic/pgtable.h>
+
+#endif /* _ASM_C6X_PGTABLE_H */
diff --git a/arch/c6x/include/asm/processor.h b/arch/c6x/include/asm/processor.h
new file mode 100644
index 000000000000..8154c4ee8c9c
--- /dev/null
+++ b/arch/c6x/include/asm/processor.h
@@ -0,0 +1,132 @@
+/*
+ *  Port on Texas Instruments TMS320C6x architecture
+ *
+ *  Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated
+ *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+ *
+ *  Updated for 2.6.34: Mark Salter <msalter@redhat.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+#ifndef _ASM_C6X_PROCESSOR_H
+#define _ASM_C6X_PROCESSOR_H
+
+#include <asm/ptrace.h>
+#include <asm/page.h>
+#include <asm/current.h>
+
+/*
+ * Default implementation of macro that returns current
+ * instruction pointer ("program counter").
+ */
+#define current_text_addr()			\
+({						\
+	void *__pc;				\
+	asm("mvc .S2 pce1,%0\n" : "=b"(__pc));	\
+	__pc;					\
+})
+
+/*
+ * User space process size. This is mostly meaningless for NOMMU
+ * but some C6X processors may have RAM addresses up to 0xFFFFFFFF.
+ * Since calls like mmap() can return an address or an error, we
+ * have to allow room for error returns when code does something
+ * like:
+ *
+ *       addr = do_mmap(...)
+ *       if ((unsigned long)addr >= TASK_SIZE)
+ *            ... its an error code, not an address ...
+ *
+ * Here, we allow for 4096 error codes which means we really can't
+ * use the last 4K page on systems with RAM extending all the way
+ * to the end of the 32-bit address space.
+ */
+#define TASK_SIZE	0xFFFFF000
+
+/*
+ * This decides where the kernel will search for a free chunk of vm
+ * space during mmap's. We won't be using it
+ */
+#define TASK_UNMAPPED_BASE	0
+
+struct thread_struct {
+	unsigned long long b15_14;
+	unsigned long long a15_14;
+	unsigned long long b13_12;
+	unsigned long long a13_12;
+	unsigned long long b11_10;
+	unsigned long long a11_10;
+	unsigned long long ricl_icl;
+	unsigned long  usp;		/* user stack pointer */
+	unsigned long  pc;		/* kernel pc */
+	unsigned long  wchan;
+};
+
+#define INIT_THREAD					\
+{							\
+	.usp = 0,					\
+	.wchan = 0,					\
+}
+
+#define INIT_MMAP { \
+	&init_mm, 0, 0, NULL, PAGE_SHARED, VM_READ | VM_WRITE | VM_EXEC, 1, \
+	NULL, NULL }
+
+#define task_pt_regs(task) \
+	((struct pt_regs *)(THREAD_START_SP + task_stack_page(task)) - 1)
+
+#define alloc_kernel_stack()	__get_free_page(GFP_KERNEL)
+#define free_kernel_stack(page) free_page((page))
+
+
+/* Forward declaration, a strange C thing */
+struct task_struct;
+
+extern void start_thread(struct pt_regs *regs, unsigned int pc,
+			 unsigned long usp);
+
+/* Free all resources held by a thread. */
+static inline void release_thread(struct task_struct *dead_task)
+{
+}
+
+/* Prepare to copy thread state - unlazy all lazy status */
+#define prepare_to_copy(tsk)	do { } while (0)
+
+extern int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags);
+
+#define copy_segments(tsk, mm)		do { } while (0)
+#define release_segments(mm)		do { } while (0)
+
+/*
+ * saved PC of a blocked thread.
+ */
+#define thread_saved_pc(tsk) (task_pt_regs(tsk)->pc)
+
+/*
+ * saved kernel SP and DP of a blocked thread.
+ */
+#ifdef _BIG_ENDIAN
+#define thread_saved_ksp(tsk) \
+	(*(unsigned long *)&(tsk)->thread.b15_14)
+#define thread_saved_dp(tsk) \
+	(*(((unsigned long *)&(tsk)->thread.b15_14) + 1))
+#else
+#define thread_saved_ksp(tsk) \
+	(*(((unsigned long *)&(tsk)->thread.b15_14) + 1))
+#define thread_saved_dp(tsk) \
+	(*(unsigned long *)&(tsk)->thread.b15_14)
+#endif
+
+extern unsigned long get_wchan(struct task_struct *p);
+
+#define KSTK_EIP(tsk)	(task_pt_regs(task)->pc)
+#define	KSTK_ESP(tsk)	(task_pt_regs(task)->sp)
+
+#define cpu_relax()		do { } while (0)
+
+extern const struct seq_operations cpuinfo_op;
+
+#endif /* ASM_C6X_PROCESSOR_H */
diff --git a/arch/c6x/include/asm/procinfo.h b/arch/c6x/include/asm/procinfo.h
new file mode 100644
index 000000000000..c139d1e71f87
--- /dev/null
+++ b/arch/c6x/include/asm/procinfo.h
@@ -0,0 +1,28 @@
+/*
+ *  Copyright (C) 2010 Texas Instruments Incorporated
+ *  Author: Mark Salter (msalter@redhat.com)
+ *
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef _ASM_C6X_PROCINFO_H
+#define _ASM_C6X_PROCINFO_H
+
+#ifdef __KERNEL__
+
+struct proc_info_list {
+	unsigned int		cpu_val;
+	unsigned int		cpu_mask;
+	const char		*arch_name;
+	const char		*elf_name;
+	unsigned int		elf_hwcap;
+};
+
+#else	/* __KERNEL__ */
+#include <asm/elf.h>
+#warning "Please include asm/elf.h instead"
+#endif	/* __KERNEL__ */
+
+#endif	/* _ASM_C6X_PROCINFO_H */
diff --git a/arch/c6x/include/asm/prom.h b/arch/c6x/include/asm/prom.h
new file mode 100644
index 000000000000..b4ec95f07518
--- /dev/null
+++ b/arch/c6x/include/asm/prom.h
@@ -0,0 +1 @@
+/* dummy prom.h; here to make linux/of.h's #includes happy */
diff --git a/arch/c6x/include/asm/ptrace.h b/arch/c6x/include/asm/ptrace.h
new file mode 100644
index 000000000000..21e8d7931fe7
--- /dev/null
+++ b/arch/c6x/include/asm/ptrace.h
@@ -0,0 +1,174 @@
+/*
+ *  Copyright (C) 2004, 2006, 2009, 2010 Texas Instruments Incorporated
+ *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+ *
+ *  Updated for 2.6.34: Mark Salter <msalter@redhat.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+#ifndef _ASM_C6X_PTRACE_H
+#define _ASM_C6X_PTRACE_H
+
+#define BKPT_OPCODE	0x56454314	/* illegal opcode */
+
+#ifdef _BIG_ENDIAN
+#define PT_LO(odd, even)  odd
+#define PT_HI(odd, even)  even
+#else
+#define PT_LO(odd, even)  even
+#define PT_HI(odd, even)  odd
+#endif
+
+#define PT_A4_ORG  PT_LO(1, 0)
+#define PT_TSR	   PT_HI(1, 0)
+#define PT_ILC	   PT_LO(3, 2)
+#define PT_RILC    PT_HI(3, 2)
+#define PT_CSR	   PT_LO(5, 4)
+#define PT_PC	   PT_HI(5, 4)
+#define PT_B16	   PT_LO(7, 6)
+#define PT_B17	   PT_HI(7, 6)
+#define PT_B18	   PT_LO(9, 8)
+#define PT_B19	   PT_HI(9, 8)
+#define PT_B20	   PT_LO(11, 10)
+#define PT_B21	   PT_HI(11, 10)
+#define PT_B22	   PT_LO(13, 12)
+#define PT_B23	   PT_HI(13, 12)
+#define PT_B24	   PT_LO(15, 14)
+#define PT_B25	   PT_HI(15, 14)
+#define PT_B26	   PT_LO(17, 16)
+#define PT_B27	   PT_HI(17, 16)
+#define PT_B28	   PT_LO(19, 18)
+#define PT_B29	   PT_HI(19, 18)
+#define PT_B30	   PT_LO(21, 20)
+#define PT_B31	   PT_HI(21, 20)
+#define PT_B0	   PT_LO(23, 22)
+#define PT_B1	   PT_HI(23, 22)
+#define PT_B2	   PT_LO(25, 24)
+#define PT_B3	   PT_HI(25, 24)
+#define PT_B4	   PT_LO(27, 26)
+#define PT_B5	   PT_HI(27, 26)
+#define PT_B6	   PT_LO(29, 28)
+#define PT_B7	   PT_HI(29, 28)
+#define PT_B8	   PT_LO(31, 30)
+#define PT_B9	   PT_HI(31, 30)
+#define PT_B10	   PT_LO(33, 32)
+#define PT_B11	   PT_HI(33, 32)
+#define PT_B12	   PT_LO(35, 34)
+#define PT_B13	   PT_HI(35, 34)
+#define PT_A16	   PT_LO(37, 36)
+#define PT_A17	   PT_HI(37, 36)
+#define PT_A18	   PT_LO(39, 38)
+#define PT_A19	   PT_HI(39, 38)
+#define PT_A20	   PT_LO(41, 40)
+#define PT_A21	   PT_HI(41, 40)
+#define PT_A22	   PT_LO(43, 42)
+#define PT_A23	   PT_HI(43, 42)
+#define PT_A24	   PT_LO(45, 44)
+#define PT_A25	   PT_HI(45, 44)
+#define PT_A26	   PT_LO(47, 46)
+#define PT_A27	   PT_HI(47, 46)
+#define PT_A28	   PT_LO(49, 48)
+#define PT_A29	   PT_HI(49, 48)
+#define PT_A30	   PT_LO(51, 50)
+#define PT_A31	   PT_HI(51, 50)
+#define PT_A0	   PT_LO(53, 52)
+#define PT_A1	   PT_HI(53, 52)
+#define PT_A2	   PT_LO(55, 54)
+#define PT_A3	   PT_HI(55, 54)
+#define PT_A4	   PT_LO(57, 56)
+#define PT_A5	   PT_HI(57, 56)
+#define PT_A6	   PT_LO(59, 58)
+#define PT_A7	   PT_HI(59, 58)
+#define PT_A8	   PT_LO(61, 60)
+#define PT_A9	   PT_HI(61, 60)
+#define PT_A10	   PT_LO(63, 62)
+#define PT_A11	   PT_HI(63, 62)
+#define PT_A12	   PT_LO(65, 64)
+#define PT_A13	   PT_HI(65, 64)
+#define PT_A14	   PT_LO(67, 66)
+#define PT_A15	   PT_HI(67, 66)
+#define PT_B14	   PT_LO(69, 68)
+#define PT_B15	   PT_HI(69, 68)
+
+#define NR_PTREGS  70
+
+#define PT_DP	   PT_B14  /* Data Segment Pointer (B14) */
+#define PT_SP	   PT_B15  /* Stack Pointer (B15)  */
+
+#ifndef __ASSEMBLY__
+
+#ifdef _BIG_ENDIAN
+#define REG_PAIR(odd, even) unsigned long odd; unsigned long even
+#else
+#define REG_PAIR(odd, even) unsigned long even; unsigned long odd
+#endif
+
+/*
+ * this struct defines the way the registers are stored on the
+ * stack during a system call. fields defined with REG_PAIR
+ * are saved and restored using double-word memory operations
+ * which means the word ordering of the pair depends on endianess.
+ */
+struct pt_regs {
+	REG_PAIR(tsr, orig_a4);
+	REG_PAIR(rilc, ilc);
+	REG_PAIR(pc, csr);
+
+	REG_PAIR(b17, b16);
+	REG_PAIR(b19, b18);
+	REG_PAIR(b21, b20);
+	REG_PAIR(b23, b22);
+	REG_PAIR(b25, b24);
+	REG_PAIR(b27, b26);
+	REG_PAIR(b29, b28);
+	REG_PAIR(b31, b30);
+
+	REG_PAIR(b1, b0);
+	REG_PAIR(b3, b2);
+	REG_PAIR(b5, b4);
+	REG_PAIR(b7, b6);
+	REG_PAIR(b9, b8);
+	REG_PAIR(b11, b10);
+	REG_PAIR(b13, b12);
+
+	REG_PAIR(a17, a16);
+	REG_PAIR(a19, a18);
+	REG_PAIR(a21, a20);
+	REG_PAIR(a23, a22);
+	REG_PAIR(a25, a24);
+	REG_PAIR(a27, a26);
+	REG_PAIR(a29, a28);
+	REG_PAIR(a31, a30);
+
+	REG_PAIR(a1, a0);
+	REG_PAIR(a3, a2);
+	REG_PAIR(a5, a4);
+	REG_PAIR(a7, a6);
+	REG_PAIR(a9, a8);
+	REG_PAIR(a11, a10);
+	REG_PAIR(a13, a12);
+
+	REG_PAIR(a15, a14);
+	REG_PAIR(sp, dp);
+};
+
+#ifdef __KERNEL__
+
+#include <linux/linkage.h>
+
+#define user_mode(regs)	((((regs)->tsr) & 0x40) != 0)
+
+#define instruction_pointer(regs) ((regs)->pc)
+#define profile_pc(regs) instruction_pointer(regs)
+#define user_stack_pointer(regs) ((regs)->sp)
+
+extern void show_regs(struct pt_regs *);
+
+extern asmlinkage unsigned long syscall_trace_entry(struct pt_regs *regs);
+extern asmlinkage void syscall_trace_exit(struct pt_regs *regs);
+
+#endif /* __KERNEL__ */
+#endif /* __ASSEMBLY__ */
+#endif /* _ASM_C6X_PTRACE_H */
diff --git a/arch/c6x/include/asm/sections.h b/arch/c6x/include/asm/sections.h
new file mode 100644
index 000000000000..f703989d837a
--- /dev/null
+++ b/arch/c6x/include/asm/sections.h
@@ -0,0 +1,12 @@
+#ifndef _ASM_C6X_SECTIONS_H
+#define _ASM_C6X_SECTIONS_H
+
+#include <asm-generic/sections.h>
+
+extern char _vectors_start[];
+extern char _vectors_end[];
+
+extern char _data_lma[];
+extern char _fdt_start[], _fdt_end[];
+
+#endif /* _ASM_C6X_SECTIONS_H */
diff --git a/arch/c6x/include/asm/setup.h b/arch/c6x/include/asm/setup.h
new file mode 100644
index 000000000000..1808f279f82e
--- /dev/null
+++ b/arch/c6x/include/asm/setup.h
@@ -0,0 +1,32 @@
+/*
+ *  Port on Texas Instruments TMS320C6x architecture
+ *
+ *  Copyright (C) 2004, 2009, 2010 2011 Texas Instruments Incorporated
+ *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+#ifndef _ASM_C6X_SETUP_H
+#define _ASM_C6X_SETUP_H
+
+#define COMMAND_LINE_SIZE   1024
+
+#ifndef __ASSEMBLY__
+extern char c6x_command_line[COMMAND_LINE_SIZE];
+
+extern int c6x_add_memory(phys_addr_t start, unsigned long size);
+
+extern unsigned long ram_start;
+extern unsigned long ram_end;
+
+extern int c6x_num_cores;
+extern unsigned int c6x_silicon_rev;
+extern unsigned int c6x_devstat;
+extern unsigned char c6x_fuse_mac[6];
+
+extern void machine_init(unsigned long dt_ptr);
+
+#endif /* !__ASSEMBLY__ */
+#endif /* _ASM_C6X_SETUP_H */
diff --git a/arch/c6x/include/asm/sigcontext.h b/arch/c6x/include/asm/sigcontext.h
new file mode 100644
index 000000000000..eb702f39cde7
--- /dev/null
+++ b/arch/c6x/include/asm/sigcontext.h
@@ -0,0 +1,80 @@
+/*
+ *  Port on Texas Instruments TMS320C6x architecture
+ *
+ *  Copyright (C) 2004, 2009 Texas Instruments Incorporated
+ *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+#ifndef _ASM_C6X_SIGCONTEXT_H
+#define _ASM_C6X_SIGCONTEXT_H
+
+
+struct sigcontext {
+	unsigned long  sc_mask;		/* old sigmask */
+	unsigned long  sc_sp;		/* old user stack pointer */
+
+	unsigned long  sc_a4;
+	unsigned long  sc_b4;
+	unsigned long  sc_a6;
+	unsigned long  sc_b6;
+	unsigned long  sc_a8;
+	unsigned long  sc_b8;
+
+	unsigned long  sc_a0;
+	unsigned long  sc_a1;
+	unsigned long  sc_a2;
+	unsigned long  sc_a3;
+	unsigned long  sc_a5;
+	unsigned long  sc_a7;
+	unsigned long  sc_a9;
+
+	unsigned long  sc_b0;
+	unsigned long  sc_b1;
+	unsigned long  sc_b2;
+	unsigned long  sc_b3;
+	unsigned long  sc_b5;
+	unsigned long  sc_b7;
+	unsigned long  sc_b9;
+
+	unsigned long  sc_a16;
+	unsigned long  sc_a17;
+	unsigned long  sc_a18;
+	unsigned long  sc_a19;
+	unsigned long  sc_a20;
+	unsigned long  sc_a21;
+	unsigned long  sc_a22;
+	unsigned long  sc_a23;
+	unsigned long  sc_a24;
+	unsigned long  sc_a25;
+	unsigned long  sc_a26;
+	unsigned long  sc_a27;
+	unsigned long  sc_a28;
+	unsigned long  sc_a29;
+	unsigned long  sc_a30;
+	unsigned long  sc_a31;
+
+	unsigned long  sc_b16;
+	unsigned long  sc_b17;
+	unsigned long  sc_b18;
+	unsigned long  sc_b19;
+	unsigned long  sc_b20;
+	unsigned long  sc_b21;
+	unsigned long  sc_b22;
+	unsigned long  sc_b23;
+	unsigned long  sc_b24;
+	unsigned long  sc_b25;
+	unsigned long  sc_b26;
+	unsigned long  sc_b27;
+	unsigned long  sc_b28;
+	unsigned long  sc_b29;
+	unsigned long  sc_b30;
+	unsigned long  sc_b31;
+
+	unsigned long  sc_csr;
+	unsigned long  sc_pc;
+};
+
+#endif /* _ASM_C6X_SIGCONTEXT_H */
diff --git a/arch/c6x/include/asm/signal.h b/arch/c6x/include/asm/signal.h
new file mode 100644
index 000000000000..f1cd870596a3
--- /dev/null
+++ b/arch/c6x/include/asm/signal.h
@@ -0,0 +1,17 @@
+#ifndef _ASM_C6X_SIGNAL_H
+#define _ASM_C6X_SIGNAL_H
+
+#include <asm-generic/signal.h>
+
+#ifndef __ASSEMBLY__
+#include <linux/linkage.h>
+
+struct pt_regs;
+
+extern asmlinkage int do_rt_sigreturn(struct pt_regs *regs);
+extern asmlinkage void do_notify_resume(struct pt_regs *regs,
+					u32 thread_info_flags,
+					int syscall);
+#endif
+
+#endif /* _ASM_C6X_SIGNAL_H */
diff --git a/arch/c6x/include/asm/soc.h b/arch/c6x/include/asm/soc.h
new file mode 100644
index 000000000000..43f50159e59b
--- /dev/null
+++ b/arch/c6x/include/asm/soc.h
@@ -0,0 +1,35 @@
+/*
+ * Miscellaneous SoC-specific hooks.
+ *
+ * Copyright (C) 2011 Texas Instruments Incorporated
+ *
+ * Author: Mark Salter <msalter@redhat.com>
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+#ifndef _ASM_C6X_SOC_H
+#define _ASM_C6X_SOC_H
+
+struct soc_ops {
+	/* Return active exception event or -1 if none */
+	int		(*get_exception)(void);
+
+	/* Assert an event */
+	void		(*assert_event)(unsigned int evt);
+};
+
+extern struct soc_ops soc_ops;
+
+extern int soc_get_exception(void);
+extern void soc_assert_event(unsigned int event);
+extern int soc_mac_addr(unsigned int index, u8 *addr);
+
+/*
+ * for mmio on SoC devices. regs are always same byte order as cpu.
+ */
+#define soc_readl(addr)    __raw_readl(addr)
+#define soc_writel(b, addr) __raw_writel((b), (addr))
+
+#endif /* _ASM_C6X_SOC_H */
diff --git a/arch/c6x/include/asm/string.h b/arch/c6x/include/asm/string.h
new file mode 100644
index 000000000000..b21517c80a17
--- /dev/null
+++ b/arch/c6x/include/asm/string.h
@@ -0,0 +1,21 @@
+/*
+ *  Port on Texas Instruments TMS320C6x architecture
+ *
+ *  Copyright (C) 2004, 2009, 2011 Texas Instruments Incorporated
+ *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+#ifndef _ASM_C6X_STRING_H
+#define _ASM_C6X_STRING_H
+
+#include <asm/page.h>
+#include <linux/linkage.h>
+
+asmlinkage extern void *memcpy(void *to, const void *from, size_t n);
+
+#define __HAVE_ARCH_MEMCPY
+
+#endif /* _ASM_C6X_STRING_H */
diff --git a/arch/c6x/include/asm/swab.h b/arch/c6x/include/asm/swab.h
new file mode 100644
index 000000000000..fd4bb0520e5e
--- /dev/null
+++ b/arch/c6x/include/asm/swab.h
@@ -0,0 +1,54 @@
+/*
+ *  Copyright (C) 2011 Texas Instruments Incorporated
+ *  Author: Mark Salter <msalter@redhat.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+#ifndef _ASM_C6X_SWAB_H
+#define _ASM_C6X_SWAB_H
+
+static inline __attribute_const__ __u16 __c6x_swab16(__u16 val)
+{
+	asm("swap4 .l1 %0,%0\n" : "+a"(val));
+	return val;
+}
+
+static inline __attribute_const__ __u32 __c6x_swab32(__u32 val)
+{
+	asm("swap4 .l1 %0,%0\n"
+	    "swap2 .l1 %0,%0\n"
+	    : "+a"(val));
+	return val;
+}
+
+static inline __attribute_const__ __u64 __c6x_swab64(__u64 val)
+{
+	asm("   swap2 .s1 %p0,%P0\n"
+	    "|| swap2 .l1 %P0,%p0\n"
+	    "   swap4 .l1 %p0,%p0\n"
+	    "   swap4 .l1 %P0,%P0\n"
+	    : "+a"(val));
+	return val;
+}
+
+static inline __attribute_const__ __u32 __c6x_swahw32(__u32 val)
+{
+	asm("swap2 .l1 %0,%0\n" : "+a"(val));
+	return val;
+}
+
+static inline __attribute_const__ __u32 __c6x_swahb32(__u32 val)
+{
+	asm("swap4 .l1 %0,%0\n" : "+a"(val));
+	return val;
+}
+
+#define __arch_swab16 __c6x_swab16
+#define __arch_swab32 __c6x_swab32
+#define __arch_swab64 __c6x_swab64
+#define __arch_swahw32 __c6x_swahw32
+#define __arch_swahb32 __c6x_swahb32
+
+#endif /* _ASM_C6X_SWAB_H */
diff --git a/arch/c6x/include/asm/syscall.h b/arch/c6x/include/asm/syscall.h
new file mode 100644
index 000000000000..ae2be315ee9c
--- /dev/null
+++ b/arch/c6x/include/asm/syscall.h
@@ -0,0 +1,123 @@
+/*
+ * Copyright (C) 2011 Texas Instruments Incorporated
+ * Author: Mark Salter <msalter@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#ifndef __ASM_C6X_SYSCALL_H
+#define __ASM_C6X_SYSCALL_H
+
+#include <linux/err.h>
+#include <linux/sched.h>
+
+static inline int syscall_get_nr(struct task_struct *task,
+				 struct pt_regs *regs)
+{
+	return regs->b0;
+}
+
+static inline void syscall_rollback(struct task_struct *task,
+				    struct pt_regs *regs)
+{
+	/* do nothing */
+}
+
+static inline long syscall_get_error(struct task_struct *task,
+				     struct pt_regs *regs)
+{
+	return IS_ERR_VALUE(regs->a4) ? regs->a4 : 0;
+}
+
+static inline long syscall_get_return_value(struct task_struct *task,
+					    struct pt_regs *regs)
+{
+	return regs->a4;
+}
+
+static inline void syscall_set_return_value(struct task_struct *task,
+					    struct pt_regs *regs,
+					    int error, long val)
+{
+	regs->a4 = error ?: val;
+}
+
+static inline void syscall_get_arguments(struct task_struct *task,
+					 struct pt_regs *regs, unsigned int i,
+					 unsigned int n, unsigned long *args)
+{
+	switch (i) {
+	case 0:
+		if (!n--)
+			break;
+		*args++ = regs->a4;
+	case 1:
+		if (!n--)
+			break;
+		*args++ = regs->b4;
+	case 2:
+		if (!n--)
+			break;
+		*args++ = regs->a6;
+	case 3:
+		if (!n--)
+			break;
+		*args++ = regs->b6;
+	case 4:
+		if (!n--)
+			break;
+		*args++ = regs->a8;
+	case 5:
+		if (!n--)
+			break;
+		*args++ = regs->b8;
+	case 6:
+		if (!n--)
+			break;
+	default:
+		BUG();
+	}
+}
+
+static inline void syscall_set_arguments(struct task_struct *task,
+					 struct pt_regs *regs,
+					 unsigned int i, unsigned int n,
+					 const unsigned long *args)
+{
+	switch (i) {
+	case 0:
+		if (!n--)
+			break;
+		regs->a4 = *args++;
+	case 1:
+		if (!n--)
+			break;
+		regs->b4 = *args++;
+	case 2:
+		if (!n--)
+			break;
+		regs->a6 = *args++;
+	case 3:
+		if (!n--)
+			break;
+		regs->b6 = *args++;
+	case 4:
+		if (!n--)
+			break;
+		regs->a8 = *args++;
+	case 5:
+		if (!n--)
+			break;
+		regs->a9 = *args++;
+	case 6:
+		if (!n)
+			break;
+	default:
+		BUG();
+	}
+}
+
+#endif /* __ASM_C6X_SYSCALLS_H */
diff --git a/arch/c6x/include/asm/syscalls.h b/arch/c6x/include/asm/syscalls.h
new file mode 100644
index 000000000000..aed53da703c9
--- /dev/null
+++ b/arch/c6x/include/asm/syscalls.h
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2011 Texas Instruments Incorporated
+ * Author: Mark Salter <msalter@redhat.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, version 2.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ * NON INFRINGEMENT.  See the GNU General Public License for
+ * more details.
+ */
+
+#ifndef __ASM_C6X_SYSCALLS_H
+#define __ASM_C6X_SYSCALLS_H
+
+#include <linux/compiler.h>
+#include <linux/linkage.h>
+#include <linux/types.h>
+
+/* The array of function pointers for syscalls. */
+extern void *sys_call_table[];
+
+/* The following are trampolines in entry.S to handle 64-bit arguments */
+extern long sys_pread_c6x(unsigned int fd, char __user *buf,
+			  size_t count, off_t pos_low, off_t pos_high);
+extern long sys_pwrite_c6x(unsigned int fd, const char __user *buf,
+			   size_t count, off_t pos_low, off_t pos_high);
+extern long sys_truncate64_c6x(const char __user *path,
+			       off_t length_low, off_t length_high);
+extern long sys_ftruncate64_c6x(unsigned int fd,
+			       off_t length_low, off_t length_high);
+extern long sys_fadvise64_c6x(int fd, u32 offset_lo, u32 offset_hi,
+			      u32 len, int advice);
+extern long sys_fadvise64_64_c6x(int fd, u32 offset_lo, u32 offset_hi,
+				u32 len_lo, u32 len_hi, int advice);
+extern long sys_fallocate_c6x(int fd, int mode,
+			      u32 offset_lo, u32 offset_hi,
+			      u32 len_lo, u32 len_hi);
+extern int sys_cache_sync(unsigned long s, unsigned long e);
+
+struct pt_regs;
+
+extern asmlinkage long sys_c6x_clone(struct pt_regs *regs);
+extern asmlinkage long sys_c6x_execve(const char __user *name,
+				      const char __user *const __user *argv,
+				      const char __user *const __user *envp,
+				      struct pt_regs *regs);
+
+
+#include <asm-generic/syscalls.h>
+
+#endif /* __ASM_C6X_SYSCALLS_H */
diff --git a/arch/c6x/include/asm/system.h b/arch/c6x/include/asm/system.h
new file mode 100644
index 000000000000..e076dc0eacc8
--- /dev/null
+++ b/arch/c6x/include/asm/system.h
@@ -0,0 +1,168 @@
+/*
+ *  Port on Texas Instruments TMS320C6x architecture
+ *
+ *  Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated
+ *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+#ifndef _ASM_C6X_SYSTEM_H
+#define _ASM_C6X_SYSTEM_H
+
+#include <linux/linkage.h>
+#include <linux/irqflags.h>
+
+#define prepare_to_switch()    do { } while (0)
+
+struct task_struct;
+struct thread_struct;
+asmlinkage void *__switch_to(struct thread_struct *prev,
+			     struct thread_struct *next,
+			     struct task_struct *tsk);
+
+#define switch_to(prev, next, last)				\
+	do {							\
+		current->thread.wchan = (u_long) __builtin_return_address(0); \
+		(last) = __switch_to(&(prev)->thread,		\
+				     &(next)->thread, (prev));	\
+		mb();						\
+		current->thread.wchan = 0;			\
+	} while (0)
+
+/* Reset the board */
+#define HARD_RESET_NOW()
+
+#define get_creg(reg) \
+	({ unsigned int __x; \
+	   asm volatile ("mvc .s2 " #reg ",%0\n" : "=b"(__x)); __x; })
+
+#define set_creg(reg, v) \
+	do { unsigned int __x = (unsigned int)(v); \
+		asm volatile ("mvc .s2 %0," #reg "\n" : : "b"(__x)); \
+	} while (0)
+
+#define or_creg(reg, n) \
+	do { unsigned __x, __n = (unsigned)(n);		  \
+		asm volatile ("mvc .s2 " #reg ",%0\n"	  \
+			      "or  .l2 %1,%0,%0\n"	  \
+			      "mvc .s2 %0," #reg "\n"	  \
+			      "nop\n"			  \
+			      : "=&b"(__x) : "b"(__n));	  \
+	} while (0)
+
+#define and_creg(reg, n) \
+	do { unsigned __x, __n = (unsigned)(n);		  \
+		asm volatile ("mvc .s2 " #reg ",%0\n"	  \
+			      "and .l2 %1,%0,%0\n"	  \
+			      "mvc .s2 %0," #reg "\n"	  \
+			      "nop\n"    \
+			      : "=&b"(__x) : "b"(__n));	  \
+	} while (0)
+
+#define get_coreid() (get_creg(DNUM) & 0xff)
+
+/* Set/get IST */
+#define set_ist(x)	set_creg(ISTP, x)
+#define get_ist()       get_creg(ISTP)
+
+/*
+ * Exception management
+ */
+asmlinkage void enable_exception(void);
+#define disable_exception()
+#define get_except_type()        get_creg(EFR)
+#define ack_exception(type)      set_creg(ECR, 1 << (type))
+#define get_iexcept()            get_creg(IERR)
+#define set_iexcept(mask)        set_creg(IERR, (mask))
+
+/*
+ * Misc. functions
+ */
+#define nop()                    asm("NOP\n");
+#define mb()                     barrier()
+#define rmb()                    barrier()
+#define wmb()                    barrier()
+#define set_mb(var, value)       do { var = value;  mb(); } while (0)
+#define set_wmb(var, value)      do { var = value; wmb(); } while (0)
+
+#define smp_mb()	         barrier()
+#define smp_rmb()	         barrier()
+#define smp_wmb()	         barrier()
+#define smp_read_barrier_depends()	do { } while (0)
+
+#define xchg(ptr, x) \
+	((__typeof__(*(ptr)))__xchg((unsigned int)(x), (void *) (ptr), \
+				    sizeof(*(ptr))))
+#define tas(ptr)    xchg((ptr), 1)
+
+unsigned int _lmbd(unsigned int, unsigned int);
+unsigned int _bitr(unsigned int);
+
+struct __xchg_dummy { unsigned int a[100]; };
+#define __xg(x) ((volatile struct __xchg_dummy *)(x))
+
+static inline unsigned int __xchg(unsigned int x, volatile void *ptr, int size)
+{
+	unsigned int tmp;
+	unsigned long flags;
+
+	local_irq_save(flags);
+
+	switch (size) {
+	case 1:
+		tmp = 0;
+		tmp = *((unsigned char *) ptr);
+		*((unsigned char *) ptr) = (unsigned char) x;
+		break;
+	case 2:
+		tmp = 0;
+		tmp = *((unsigned short *) ptr);
+		*((unsigned short *) ptr) = x;
+		break;
+	case 4:
+		tmp = 0;
+		tmp = *((unsigned int *) ptr);
+		*((unsigned int *) ptr) = x;
+		break;
+	}
+	local_irq_restore(flags);
+	return tmp;
+}
+
+#include <asm-generic/cmpxchg-local.h>
+
+/*
+ * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make
+ * them available.
+ */
+#define cmpxchg_local(ptr, o, n)					\
+	((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr),		\
+						     (unsigned long)(o), \
+						     (unsigned long)(n), \
+						     sizeof(*(ptr))))
+#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
+
+#include <asm-generic/cmpxchg.h>
+
+#define _extu(x, s, e)							\
+	({      unsigned int __x;					\
+		asm volatile ("extu .S2 %3,%1,%2,%0\n" :		\
+			      "=b"(__x) : "n"(s), "n"(e), "b"(x));	\
+	       __x; })
+
+
+extern unsigned int c6x_core_freq;
+
+struct pt_regs;
+
+extern void die(char *str, struct pt_regs *fp, int nr);
+extern asmlinkage int process_exception(struct pt_regs *regs);
+extern void time_init(void);
+extern void free_initmem(void);
+
+extern void (*c6x_restart)(void);
+extern void (*c6x_halt)(void);
+
+#endif /* _ASM_C6X_SYSTEM_H */
diff --git a/arch/c6x/include/asm/thread_info.h b/arch/c6x/include/asm/thread_info.h
new file mode 100644
index 000000000000..fd99148cda9d
--- /dev/null
+++ b/arch/c6x/include/asm/thread_info.h
@@ -0,0 +1,121 @@
+/*
+ *  Port on Texas Instruments TMS320C6x architecture
+ *
+ *  Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated
+ *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+ *
+ *  Updated for 2.6.3x: Mark Salter <msalter@redhat.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+#ifndef _ASM_C6X_THREAD_INFO_H
+#define _ASM_C6X_THREAD_INFO_H
+
+#ifdef __KERNEL__
+
+#include <asm/page.h>
+
+#ifdef CONFIG_4KSTACKS
+#define THREAD_SIZE		4096
+#define THREAD_SHIFT		12
+#define THREAD_ORDER		0
+#else
+#define THREAD_SIZE		8192
+#define THREAD_SHIFT		13
+#define THREAD_ORDER		1
+#endif
+
+#define THREAD_START_SP		(THREAD_SIZE - 8)
+
+#ifndef __ASSEMBLY__
+
+typedef struct {
+	unsigned long seg;
+} mm_segment_t;
+
+/*
+ * low level task data.
+ */
+struct thread_info {
+	struct task_struct	*task;		/* main task structure */
+	struct exec_domain	*exec_domain;	/* execution domain */
+	unsigned long		flags;		/* low level flags */
+	int			cpu;		/* cpu we're on */
+	int			preempt_count;	/* 0 = preemptable, <0 = BUG */
+	mm_segment_t		addr_limit;	/* thread address space */
+	struct restart_block	restart_block;
+};
+
+/*
+ * macros/functions for gaining access to the thread information structure
+ *
+ * preempt_count needs to be 1 initially, until the scheduler is functional.
+ */
+#define INIT_THREAD_INFO(tsk)			\
+{						\
+	.task		= &tsk,			\
+	.exec_domain	= &default_exec_domain,	\
+	.flags		= 0,			\
+	.cpu		= 0,			\
+	.preempt_count	= INIT_PREEMPT_COUNT,	\
+	.addr_limit	= KERNEL_DS,		\
+	.restart_block	= {			\
+		.fn = do_no_restart_syscall,	\
+	},					\
+}
+
+#define init_thread_info	(init_thread_union.thread_info)
+#define init_stack		(init_thread_union.stack)
+
+/* get the thread information struct of current task */
+static inline __attribute__((const))
+struct thread_info *current_thread_info(void)
+{
+	struct thread_info *ti;
+	asm volatile (" clr   .s2 B15,0,%1,%0\n"
+		      : "=b" (ti)
+		      : "Iu5" (THREAD_SHIFT - 1));
+	return ti;
+}
+
+#define __HAVE_ARCH_THREAD_INFO_ALLOCATOR
+
+/* thread information allocation */
+#ifdef CONFIG_DEBUG_STACK_USAGE
+#define THREAD_FLAGS (GFP_KERNEL | __GFP_NOTRACK | __GFP_ZERO)
+#else
+#define THREAD_FLAGS (GFP_KERNEL | __GFP_NOTRACK)
+#endif
+
+#define alloc_thread_info_node(tsk, node)	\
+	((struct thread_info *)__get_free_pages(THREAD_FLAGS, THREAD_ORDER))
+
+#define free_thread_info(ti)	free_pages((unsigned long) (ti), THREAD_ORDER)
+#define get_thread_info(ti)	get_task_struct((ti)->task)
+#define put_thread_info(ti)	put_task_struct((ti)->task)
+#endif /* __ASSEMBLY__ */
+
+#define	PREEMPT_ACTIVE	0x10000000
+
+/*
+ * thread information flag bit numbers
+ * - pending work-to-be-done flags are in LSW
+ * - other flags in MSW
+ */
+#define TIF_SYSCALL_TRACE	0	/* syscall trace active */
+#define TIF_NOTIFY_RESUME	1	/* resumption notification requested */
+#define TIF_SIGPENDING		2	/* signal pending */
+#define TIF_NEED_RESCHED	3	/* rescheduling necessary */
+#define TIF_RESTORE_SIGMASK	4	/* restore signal mask in do_signal() */
+
+#define TIF_POLLING_NRFLAG	16	/* true if polling TIF_NEED_RESCHED */
+#define TIF_MEMDIE		17	/* OOM killer killed process */
+
+#define TIF_WORK_MASK		0x00007FFE /* work on irq/exception return */
+#define TIF_ALLWORK_MASK	0x00007FFF /* work on any return to u-space */
+
+#endif /* __KERNEL__ */
+
+#endif /* _ASM_C6X_THREAD_INFO_H */
diff --git a/arch/c6x/include/asm/timer64.h b/arch/c6x/include/asm/timer64.h
new file mode 100644
index 000000000000..bbe27bb9887e
--- /dev/null
+++ b/arch/c6x/include/asm/timer64.h
@@ -0,0 +1,6 @@
+#ifndef _C6X_TIMER64_H
+#define _C6X_TIMER64_H
+
+extern void __init timer64_init(void);
+
+#endif /* _C6X_TIMER64_H */
diff --git a/arch/c6x/include/asm/timex.h b/arch/c6x/include/asm/timex.h
new file mode 100644
index 000000000000..508c3ec971f9
--- /dev/null
+++ b/arch/c6x/include/asm/timex.h
@@ -0,0 +1,33 @@
+/*
+ *  Port on Texas Instruments TMS320C6x architecture
+ *
+ *  Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated
+ *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+ *
+ *  Modified for 2.6.34: Mark Salter <msalter@redhat.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+#ifndef _ASM_C6X_TIMEX_H
+#define _ASM_C6X_TIMEX_H
+
+#define CLOCK_TICK_RATE ((1000 * 1000000UL) / 6)
+
+/* 64-bit timestamp */
+typedef unsigned long long cycles_t;
+
+static inline cycles_t get_cycles(void)
+{
+	unsigned l, h;
+
+	asm volatile (" dint\n"
+		      " mvc .s2 TSCL,%0\n"
+		      " mvc .s2 TSCH,%1\n"
+		      " rint\n"
+		      : "=b"(l), "=b"(h));
+	return ((cycles_t)h << 32) | l;
+}
+
+#endif /* _ASM_C6X_TIMEX_H */
diff --git a/arch/c6x/include/asm/tlb.h b/arch/c6x/include/asm/tlb.h
new file mode 100644
index 000000000000..8709e5e29d2d
--- /dev/null
+++ b/arch/c6x/include/asm/tlb.h
@@ -0,0 +1,8 @@
+#ifndef _ASM_C6X_TLB_H
+#define _ASM_C6X_TLB_H
+
+#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm)
+
+#include <asm-generic/tlb.h>
+
+#endif /* _ASM_C6X_TLB_H */
diff --git a/arch/c6x/include/asm/traps.h b/arch/c6x/include/asm/traps.h
new file mode 100644
index 000000000000..62124d7b1b5f
--- /dev/null
+++ b/arch/c6x/include/asm/traps.h
@@ -0,0 +1,36 @@
+/*
+ *  Port on Texas Instruments TMS320C6x architecture
+ *
+ *  Copyright (C) 2004, 2009, 2011 Texas Instruments Incorporated
+ *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+#ifndef _ASM_C6X_TRAPS_H
+#define _ASM_C6X_TRAPS_H
+
+#define EXCEPT_TYPE_NXF   31	   /* NMI */
+#define EXCEPT_TYPE_EXC   30	   /* external exception */
+#define EXCEPT_TYPE_IXF   1	   /* internal exception */
+#define EXCEPT_TYPE_SXF   0	   /* software exception */
+
+#define EXCEPT_CAUSE_LBX  (1 << 7) /* loop buffer exception */
+#define EXCEPT_CAUSE_PRX  (1 << 6) /* privilege exception */
+#define EXCEPT_CAUSE_RAX  (1 << 5) /* resource access exception */
+#define EXCEPT_CAUSE_RCX  (1 << 4) /* resource conflict exception */
+#define EXCEPT_CAUSE_OPX  (1 << 3) /* opcode exception */
+#define EXCEPT_CAUSE_EPX  (1 << 2) /* execute packet exception */
+#define EXCEPT_CAUSE_FPX  (1 << 1) /* fetch packet exception */
+#define EXCEPT_CAUSE_IFX  (1 << 0) /* instruction fetch exception */
+
+struct exception_info {
+	char *kernel_str;
+	int  signo;
+	int  code;
+};
+
+extern int (*c6x_nmi_handler)(struct pt_regs *regs);
+
+#endif /* _ASM_C6X_TRAPS_H */
diff --git a/arch/c6x/include/asm/uaccess.h b/arch/c6x/include/asm/uaccess.h
new file mode 100644
index 000000000000..453dd263bee3
--- /dev/null
+++ b/arch/c6x/include/asm/uaccess.h
@@ -0,0 +1,107 @@
+/*
+ *  Copyright (C) 2011 Texas Instruments Incorporated
+ *  Author: Mark Salter <msalter@redhat.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+#ifndef _ASM_C6X_UACCESS_H
+#define _ASM_C6X_UACCESS_H
+
+#include <linux/types.h>
+#include <linux/compiler.h>
+#include <linux/string.h>
+
+#ifdef CONFIG_ACCESS_CHECK
+#define __access_ok _access_ok
+#endif
+
+/*
+ * __copy_from_user/copy_to_user are based on ones in asm-generic/uaccess.h
+ *
+ * C6X supports unaligned 32 and 64 bit loads and stores.
+ */
+static inline __must_check long __copy_from_user(void *to,
+		const void __user *from, unsigned long n)
+{
+	u32 tmp32;
+	u64 tmp64;
+
+	if (__builtin_constant_p(n)) {
+		switch (n) {
+		case 1:
+			*(u8 *)to = *(u8 __force *)from;
+			return 0;
+		case 4:
+			asm volatile ("ldnw .d1t1 *%2,%0\n"
+				      "nop  4\n"
+				      "stnw .d1t1 %0,*%1\n"
+				      : "=&a"(tmp32)
+				      : "A"(to), "a"(from)
+				      : "memory");
+			return 0;
+		case 8:
+			asm volatile ("ldndw .d1t1 *%2,%0\n"
+				      "nop   4\n"
+				      "stndw .d1t1 %0,*%1\n"
+				      : "=&a"(tmp64)
+				      : "a"(to), "a"(from)
+				      : "memory");
+			return 0;
+		default:
+			break;
+		}
+	}
+
+	memcpy(to, (const void __force *)from, n);
+	return 0;
+}
+
+static inline __must_check long __copy_to_user(void __user *to,
+		const void *from, unsigned long n)
+{
+	u32 tmp32;
+	u64 tmp64;
+
+	if (__builtin_constant_p(n)) {
+		switch (n) {
+		case 1:
+			*(u8 __force *)to = *(u8 *)from;
+			return 0;
+		case 4:
+			asm volatile ("ldnw .d1t1 *%2,%0\n"
+				      "nop  4\n"
+				      "stnw .d1t1 %0,*%1\n"
+				      : "=&a"(tmp32)
+				      : "a"(to), "a"(from)
+				      : "memory");
+			return 0;
+		case 8:
+			asm volatile ("ldndw .d1t1 *%2,%0\n"
+				      "nop   4\n"
+				      "stndw .d1t1 %0,*%1\n"
+				      : "=&a"(tmp64)
+				      : "a"(to), "a"(from)
+				      : "memory");
+			return 0;
+		default:
+			break;
+		}
+	}
+
+	memcpy((void __force *)to, from, n);
+	return 0;
+}
+
+#define __copy_to_user   __copy_to_user
+#define __copy_from_user __copy_from_user
+
+extern int _access_ok(unsigned long addr, unsigned long size);
+#ifdef CONFIG_ACCESS_CHECK
+#define __access_ok _access_ok
+#endif
+
+#include <asm-generic/uaccess.h>
+
+#endif /* _ASM_C6X_UACCESS_H */
diff --git a/arch/c6x/include/asm/unaligned.h b/arch/c6x/include/asm/unaligned.h
new file mode 100644
index 000000000000..b976cb740eaa
--- /dev/null
+++ b/arch/c6x/include/asm/unaligned.h
@@ -0,0 +1,170 @@
+/*
+ *  Port on Texas Instruments TMS320C6x architecture
+ *
+ *  Copyright (C) 2004, 2009, 2010 Texas Instruments Incorporated
+ *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+ *  Rewritten for 2.6.3x: Mark Salter <msalter@redhat.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+#ifndef _ASM_C6X_UNALIGNED_H
+#define _ASM_C6X_UNALIGNED_H
+
+#include <linux/swab.h>
+
+/*
+ * The C64x+ can do unaligned word and dword accesses in hardware
+ * using special load/store instructions.
+ */
+
+static inline u16 get_unaligned_le16(const void *p)
+{
+	const u8 *_p = p;
+	return _p[0] | _p[1] << 8;
+}
+
+static inline u16 get_unaligned_be16(const void *p)
+{
+	const u8 *_p = p;
+	return _p[0] << 8 | _p[1];
+}
+
+static inline void put_unaligned_le16(u16 val, void *p)
+{
+	u8 *_p = p;
+	_p[0] = val;
+	_p[1] = val >> 8;
+}
+
+static inline void put_unaligned_be16(u16 val, void *p)
+{
+	u8 *_p = p;
+	_p[0] = val >> 8;
+	_p[1] = val;
+}
+
+static inline u32 get_unaligned32(const void *p)
+{
+	u32 val = (u32) p;
+	asm (" ldnw	.d1t1	*%0,%0\n"
+	     " nop     4\n"
+	     : "+a"(val));
+	return val;
+}
+
+static inline void put_unaligned32(u32 val, void *p)
+{
+	asm volatile (" stnw	.d2t1	%0,*%1\n"
+		      : : "a"(val), "b"(p) : "memory");
+}
+
+static inline u64 get_unaligned64(const void *p)
+{
+	u64 val;
+	asm volatile (" ldndw	.d1t1	*%1,%0\n"
+		      " nop     4\n"
+		      : "=a"(val) : "a"(p));
+	return val;
+}
+
+static inline void put_unaligned64(u64 val, const void *p)
+{
+	asm volatile (" stndw	.d2t1	%0,*%1\n"
+		      : : "a"(val), "b"(p) : "memory");
+}
+
+#ifdef CONFIG_CPU_BIG_ENDIAN
+
+#define get_unaligned_le32(p)	 __swab32(get_unaligned32(p))
+#define get_unaligned_le64(p)	 __swab64(get_unaligned64(p))
+#define get_unaligned_be32(p)	 get_unaligned32(p)
+#define get_unaligned_be64(p)	 get_unaligned64(p)
+#define put_unaligned_le32(v, p) put_unaligned32(__swab32(v), (p))
+#define put_unaligned_le64(v, p) put_unaligned64(__swab64(v), (p))
+#define put_unaligned_be32(v, p) put_unaligned32((v), (p))
+#define put_unaligned_be64(v, p) put_unaligned64((v), (p))
+#define get_unaligned	__get_unaligned_be
+#define put_unaligned	__put_unaligned_be
+
+#else
+
+#define get_unaligned_le32(p)	 get_unaligned32(p)
+#define get_unaligned_le64(p)	 get_unaligned64(p)
+#define get_unaligned_be32(p)	 __swab32(get_unaligned32(p))
+#define get_unaligned_be64(p)	 __swab64(get_unaligned64(p))
+#define put_unaligned_le32(v, p) put_unaligned32((v), (p))
+#define put_unaligned_le64(v, p) put_unaligned64((v), (p))
+#define put_unaligned_be32(v, p) put_unaligned32(__swab32(v), (p))
+#define put_unaligned_be64(v, p) put_unaligned64(__swab64(v), (p))
+#define get_unaligned	__get_unaligned_le
+#define put_unaligned	__put_unaligned_le
+
+#endif
+
+/*
+ * Cause a link-time error if we try an unaligned access other than
+ * 1,2,4 or 8 bytes long
+ */
+extern int __bad_unaligned_access_size(void);
+
+#define __get_unaligned_le(ptr) (typeof(*(ptr)))({			\
+	sizeof(*(ptr)) == 1 ? *(ptr) :					\
+	  (sizeof(*(ptr)) == 2 ? get_unaligned_le16((ptr)) :		\
+	     (sizeof(*(ptr)) == 4 ? get_unaligned_le32((ptr)) :		\
+		(sizeof(*(ptr)) == 8 ? get_unaligned_le64((ptr)) :	\
+		   __bad_unaligned_access_size())));			\
+	})
+
+#define __get_unaligned_be(ptr) (__force typeof(*(ptr)))({	\
+	sizeof(*(ptr)) == 1 ? *(ptr) :					\
+	  (sizeof(*(ptr)) == 2 ? get_unaligned_be16((ptr)) :		\
+	     (sizeof(*(ptr)) == 4 ? get_unaligned_be32((ptr)) :		\
+		(sizeof(*(ptr)) == 8 ? get_unaligned_be64((ptr)) :	\
+		   __bad_unaligned_access_size())));			\
+	})
+
+#define __put_unaligned_le(val, ptr) ({					\
+	void *__gu_p = (ptr);						\
+	switch (sizeof(*(ptr))) {					\
+	case 1:								\
+		*(u8 *)__gu_p = (__force u8)(val);			\
+		break;							\
+	case 2:								\
+		put_unaligned_le16((__force u16)(val), __gu_p);		\
+		break;							\
+	case 4:								\
+		put_unaligned_le32((__force u32)(val), __gu_p);		\
+		break;							\
+	case 8:								\
+		put_unaligned_le64((__force u64)(val), __gu_p);		\
+		break;							\
+	default:							\
+		__bad_unaligned_access_size();				\
+		break;							\
+	}								\
+	(void)0; })
+
+#define __put_unaligned_be(val, ptr) ({					\
+	void *__gu_p = (ptr);						\
+	switch (sizeof(*(ptr))) {					\
+	case 1:								\
+		*(u8 *)__gu_p = (__force u8)(val);			\
+		break;							\
+	case 2:								\
+		put_unaligned_be16((__force u16)(val), __gu_p);		\
+		break;							\
+	case 4:								\
+		put_unaligned_be32((__force u32)(val), __gu_p);		\
+		break;							\
+	case 8:								\
+		put_unaligned_be64((__force u64)(val), __gu_p);		\
+		break;							\
+	default:							\
+		__bad_unaligned_access_size();				\
+		break;							\
+	}								\
+	(void)0; })
+
+#endif /* _ASM_C6X_UNALIGNED_H */
diff --git a/arch/c6x/include/asm/unistd.h b/arch/c6x/include/asm/unistd.h
new file mode 100644
index 000000000000..6d54ea4262eb
--- /dev/null
+++ b/arch/c6x/include/asm/unistd.h
@@ -0,0 +1,26 @@
+/*
+ * Copyright (C) 2011 Texas Instruments Incorporated
+ *
+ * Based on arch/tile version.
+ *
+ *   This program is free software; you can redistribute it and/or
+ *   modify it under the terms of the GNU General Public License
+ *   as published by the Free Software Foundation, version 2.
+ *
+ *   This program is distributed in the hope that it will be useful, but
+ *   WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
+ *   NON INFRINGEMENT.	See the GNU General Public License for
+ *   more details.
+ */
+#if !defined(_ASM_C6X_UNISTD_H) || defined(__SYSCALL)
+#define _ASM_C6X_UNISTD_H
+
+/* Use the standard ABI for syscalls. */
+#include <asm-generic/unistd.h>
+
+/* C6X-specific syscalls. */
+#define __NR_cache_sync	(__NR_arch_specific_syscall + 0)
+__SYSCALL(__NR_cache_sync, sys_cache_sync)
+
+#endif /* _ASM_C6X_UNISTD_H */
diff --git a/arch/c6x/kernel/Makefile b/arch/c6x/kernel/Makefile
new file mode 100644
index 000000000000..580a515a9443
--- /dev/null
+++ b/arch/c6x/kernel/Makefile
@@ -0,0 +1,12 @@
+#
+# Makefile for arch/c6x/kernel/
+#
+
+extra-y := head.o vmlinux.lds
+
+obj-y := process.o traps.o irq.o signal.o ptrace.o
+obj-y += setup.o sys_c6x.o time.o devicetree.o
+obj-y += switch_to.o entry.o vectors.o c6x_ksyms.o
+obj-y += soc.o dma.o
+
+obj-$(CONFIG_MODULES)           += module.o
diff --git a/arch/c6x/kernel/asm-offsets.c b/arch/c6x/kernel/asm-offsets.c
new file mode 100644
index 000000000000..759ad6d207b6
--- /dev/null
+++ b/arch/c6x/kernel/asm-offsets.c
@@ -0,0 +1,123 @@
+/*
+ * Generate definitions needed by assembly language modules.
+ * This code generates raw asm output which is post-processed
+ * to extract and format the required data.
+ */
+
+#include <linux/sched.h>
+#include <linux/thread_info.h>
+#include <asm/procinfo.h>
+#include <linux/kbuild.h>
+#include <linux/unistd.h>
+
+void foo(void)
+{
+	OFFSET(REGS_A16,	pt_regs, a16);
+	OFFSET(REGS_A17,	pt_regs, a17);
+	OFFSET(REGS_A18,	pt_regs, a18);
+	OFFSET(REGS_A19,	pt_regs, a19);
+	OFFSET(REGS_A20,	pt_regs, a20);
+	OFFSET(REGS_A21,	pt_regs, a21);
+	OFFSET(REGS_A22,	pt_regs, a22);
+	OFFSET(REGS_A23,	pt_regs, a23);
+	OFFSET(REGS_A24,	pt_regs, a24);
+	OFFSET(REGS_A25,	pt_regs, a25);
+	OFFSET(REGS_A26,	pt_regs, a26);
+	OFFSET(REGS_A27,	pt_regs, a27);
+	OFFSET(REGS_A28,	pt_regs, a28);
+	OFFSET(REGS_A29,	pt_regs, a29);
+	OFFSET(REGS_A30,	pt_regs, a30);
+	OFFSET(REGS_A31,	pt_regs, a31);
+
+	OFFSET(REGS_B16,	pt_regs, b16);
+	OFFSET(REGS_B17,	pt_regs, b17);
+	OFFSET(REGS_B18,	pt_regs, b18);
+	OFFSET(REGS_B19,	pt_regs, b19);
+	OFFSET(REGS_B20,	pt_regs, b20);
+	OFFSET(REGS_B21,	pt_regs, b21);
+	OFFSET(REGS_B22,	pt_regs, b22);
+	OFFSET(REGS_B23,	pt_regs, b23);
+	OFFSET(REGS_B24,	pt_regs, b24);
+	OFFSET(REGS_B25,	pt_regs, b25);
+	OFFSET(REGS_B26,	pt_regs, b26);
+	OFFSET(REGS_B27,	pt_regs, b27);
+	OFFSET(REGS_B28,	pt_regs, b28);
+	OFFSET(REGS_B29,	pt_regs, b29);
+	OFFSET(REGS_B30,	pt_regs, b30);
+	OFFSET(REGS_B31,	pt_regs, b31);
+
+	OFFSET(REGS_A0,		pt_regs, a0);
+	OFFSET(REGS_A1,		pt_regs, a1);
+	OFFSET(REGS_A2,		pt_regs, a2);
+	OFFSET(REGS_A3,		pt_regs, a3);
+	OFFSET(REGS_A4,		pt_regs, a4);
+	OFFSET(REGS_A5,		pt_regs, a5);
+	OFFSET(REGS_A6,		pt_regs, a6);
+	OFFSET(REGS_A7,		pt_regs, a7);
+	OFFSET(REGS_A8,		pt_regs, a8);
+	OFFSET(REGS_A9,		pt_regs, a9);
+	OFFSET(REGS_A10,	pt_regs, a10);
+	OFFSET(REGS_A11,	pt_regs, a11);
+	OFFSET(REGS_A12,	pt_regs, a12);
+	OFFSET(REGS_A13,	pt_regs, a13);
+	OFFSET(REGS_A14,	pt_regs, a14);
+	OFFSET(REGS_A15,	pt_regs, a15);
+
+	OFFSET(REGS_B0,		pt_regs, b0);
+	OFFSET(REGS_B1,		pt_regs, b1);
+	OFFSET(REGS_B2,		pt_regs, b2);
+	OFFSET(REGS_B3,		pt_regs, b3);
+	OFFSET(REGS_B4,		pt_regs, b4);
+	OFFSET(REGS_B5,		pt_regs, b5);
+	OFFSET(REGS_B6,		pt_regs, b6);
+	OFFSET(REGS_B7,		pt_regs, b7);
+	OFFSET(REGS_B8,		pt_regs, b8);
+	OFFSET(REGS_B9,		pt_regs, b9);
+	OFFSET(REGS_B10,	pt_regs, b10);
+	OFFSET(REGS_B11,	pt_regs, b11);
+	OFFSET(REGS_B12,	pt_regs, b12);
+	OFFSET(REGS_B13,	pt_regs, b13);
+	OFFSET(REGS_DP,		pt_regs, dp);
+	OFFSET(REGS_SP,		pt_regs, sp);
+
+	OFFSET(REGS_TSR,	pt_regs, tsr);
+	OFFSET(REGS_ORIG_A4,	pt_regs, orig_a4);
+
+	DEFINE(REGS__END,	sizeof(struct pt_regs));
+	BLANK();
+
+	OFFSET(THREAD_PC,	thread_struct, pc);
+	OFFSET(THREAD_B15_14,	thread_struct, b15_14);
+	OFFSET(THREAD_A15_14,	thread_struct, a15_14);
+	OFFSET(THREAD_B13_12,	thread_struct, b13_12);
+	OFFSET(THREAD_A13_12,	thread_struct, a13_12);
+	OFFSET(THREAD_B11_10,	thread_struct, b11_10);
+	OFFSET(THREAD_A11_10,	thread_struct, a11_10);
+	OFFSET(THREAD_RICL_ICL,	thread_struct, ricl_icl);
+	BLANK();
+
+	OFFSET(TASK_STATE,	task_struct, state);
+	BLANK();
+
+	OFFSET(THREAD_INFO_FLAGS,	thread_info, flags);
+	OFFSET(THREAD_INFO_PREEMPT_COUNT, thread_info, preempt_count);
+	BLANK();
+
+	/* These would be unneccessary if we ran asm files
+	 * through the preprocessor.
+	 */
+	DEFINE(KTHREAD_SIZE, THREAD_SIZE);
+	DEFINE(KTHREAD_SHIFT, THREAD_SHIFT);
+	DEFINE(KTHREAD_START_SP, THREAD_START_SP);
+	DEFINE(ENOSYS_, ENOSYS);
+	DEFINE(NR_SYSCALLS_, __NR_syscalls);
+
+	DEFINE(_TIF_SYSCALL_TRACE, (1<<TIF_SYSCALL_TRACE));
+	DEFINE(_TIF_NOTIFY_RESUME, (1<<TIF_NOTIFY_RESUME));
+	DEFINE(_TIF_SIGPENDING, (1<<TIF_SIGPENDING));
+	DEFINE(_TIF_NEED_RESCHED, (1<<TIF_NEED_RESCHED));
+	DEFINE(_TIF_POLLING_NRFLAG, (1<<TIF_POLLING_NRFLAG));
+
+	DEFINE(_TIF_ALLWORK_MASK, TIF_ALLWORK_MASK);
+	DEFINE(_TIF_WORK_MASK, TIF_WORK_MASK);
+}
diff --git a/arch/c6x/kernel/c6x_ksyms.c b/arch/c6x/kernel/c6x_ksyms.c
new file mode 100644
index 000000000000..0ba3e0bba3e1
--- /dev/null
+++ b/arch/c6x/kernel/c6x_ksyms.c
@@ -0,0 +1,66 @@
+/*
+ *  Port on Texas Instruments TMS320C6x architecture
+ *
+ *  Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated
+ *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ */
+#include <linux/module.h>
+#include <asm/checksum.h>
+#include <linux/io.h>
+
+/*
+ * libgcc functions - used internally by the compiler...
+ */
+extern int __c6xabi_divi(int dividend, int divisor);
+EXPORT_SYMBOL(__c6xabi_divi);
+
+extern unsigned __c6xabi_divu(unsigned	dividend, unsigned divisor);
+EXPORT_SYMBOL(__c6xabi_divu);
+
+extern int __c6xabi_remi(int dividend, int divisor);
+EXPORT_SYMBOL(__c6xabi_remi);
+
+extern unsigned __c6xabi_remu(unsigned	dividend, unsigned divisor);
+EXPORT_SYMBOL(__c6xabi_remu);
+
+extern int __c6xabi_divremi(int dividend, int divisor);
+EXPORT_SYMBOL(__c6xabi_divremi);
+
+extern unsigned __c6xabi_divremu(unsigned  dividend, unsigned divisor);
+EXPORT_SYMBOL(__c6xabi_divremu);
+
+extern unsigned long long __c6xabi_mpyll(unsigned long long src1,
+					 unsigned long long src2);
+EXPORT_SYMBOL(__c6xabi_mpyll);
+
+extern long long __c6xabi_negll(long long src);
+EXPORT_SYMBOL(__c6xabi_negll);
+
+extern unsigned long long __c6xabi_llshl(unsigned long long src1, uint src2);
+EXPORT_SYMBOL(__c6xabi_llshl);
+
+extern long long __c6xabi_llshr(long long src1, uint src2);
+EXPORT_SYMBOL(__c6xabi_llshr);
+
+extern unsigned long long __c6xabi_llshru(unsigned long long src1, uint src2);
+EXPORT_SYMBOL(__c6xabi_llshru);
+
+extern void __c6xabi_strasgi(int *dst, const int *src, unsigned cnt);
+EXPORT_SYMBOL(__c6xabi_strasgi);
+
+extern void __c6xabi_push_rts(void);
+EXPORT_SYMBOL(__c6xabi_push_rts);
+
+extern void __c6xabi_pop_rts(void);
+EXPORT_SYMBOL(__c6xabi_pop_rts);
+
+extern void __c6xabi_strasgi_64plus(int *dst, const int *src, unsigned cnt);
+EXPORT_SYMBOL(__c6xabi_strasgi_64plus);
+
+/* lib functions */
+EXPORT_SYMBOL(memcpy);
diff --git a/arch/c6x/kernel/devicetree.c b/arch/c6x/kernel/devicetree.c
new file mode 100644
index 000000000000..bdb56f09d0ac
--- /dev/null
+++ b/arch/c6x/kernel/devicetree.c
@@ -0,0 +1,53 @@
+/*
+ *  Architecture specific OF callbacks.
+ *
+ *  Copyright (C) 2011 Texas Instruments Incorporated
+ *  Author: Mark Salter <msalter@redhat.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ */
+#include <linux/init.h>
+#include <linux/of.h>
+#include <linux/of_fdt.h>
+#include <linux/initrd.h>
+#include <linux/memblock.h>
+
+void __init early_init_devtree(void *params)
+{
+	/* Setup flat device-tree pointer */
+	initial_boot_params = params;
+
+	/* Retrieve various informations from the /chosen node of the
+	 * device-tree, including the platform type, initrd location and
+	 * size and more ...
+	 */
+	of_scan_flat_dt(early_init_dt_scan_chosen, c6x_command_line);
+
+	/* Scan memory nodes and rebuild MEMBLOCKs */
+	of_scan_flat_dt(early_init_dt_scan_root, NULL);
+	of_scan_flat_dt(early_init_dt_scan_memory, NULL);
+}
+
+
+#ifdef CONFIG_BLK_DEV_INITRD
+void __init early_init_dt_setup_initrd_arch(unsigned long start,
+		unsigned long end)
+{
+	initrd_start = (unsigned long)__va(start);
+	initrd_end = (unsigned long)__va(end);
+	initrd_below_start_ok = 1;
+}
+#endif
+
+void __init early_init_dt_add_memory_arch(u64 base, u64 size)
+{
+	c6x_add_memory(base, size);
+}
+
+void * __init early_init_dt_alloc_memory_arch(u64 size, u64 align)
+{
+	return __va(memblock_alloc(size, align));
+}
diff --git a/arch/c6x/kernel/dma.c b/arch/c6x/kernel/dma.c
new file mode 100644
index 000000000000..ab7b12de144d
--- /dev/null
+++ b/arch/c6x/kernel/dma.c
@@ -0,0 +1,153 @@
+/*
+ *  Copyright (C) 2011 Texas Instruments Incorporated
+ *  Author: Mark Salter <msalter@redhat.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+#include <linux/module.h>
+#include <linux/dma-mapping.h>
+#include <linux/mm.h>
+#include <linux/mm_types.h>
+#include <linux/scatterlist.h>
+
+#include <asm/cacheflush.h>
+
+static void c6x_dma_sync(dma_addr_t handle, size_t size,
+			 enum dma_data_direction dir)
+{
+	unsigned long paddr = handle;
+
+	BUG_ON(!valid_dma_direction(dir));
+
+	switch (dir) {
+	case DMA_FROM_DEVICE:
+		L2_cache_block_invalidate(paddr, paddr + size);
+		break;
+	case DMA_TO_DEVICE:
+		L2_cache_block_writeback(paddr, paddr + size);
+		break;
+	case DMA_BIDIRECTIONAL:
+		L2_cache_block_writeback_invalidate(paddr, paddr + size);
+		break;
+	default:
+		break;
+	}
+}
+
+dma_addr_t dma_map_single(struct device *dev, void *ptr, size_t size,
+			  enum dma_data_direction dir)
+{
+	dma_addr_t addr = virt_to_phys(ptr);
+
+	c6x_dma_sync(addr, size, dir);
+
+	debug_dma_map_page(dev, virt_to_page(ptr),
+			   (unsigned long)ptr & ~PAGE_MASK, size,
+			   dir, addr, true);
+	return addr;
+}
+EXPORT_SYMBOL(dma_map_single);
+
+
+void dma_unmap_single(struct device *dev, dma_addr_t handle,
+		      size_t size, enum dma_data_direction dir)
+{
+	c6x_dma_sync(handle, size, dir);
+
+	debug_dma_unmap_page(dev, handle, size, dir, true);
+}
+EXPORT_SYMBOL(dma_unmap_single);
+
+
+int dma_map_sg(struct device *dev, struct scatterlist *sglist,
+	       int nents, enum dma_data_direction dir)
+{
+	struct scatterlist *sg;
+	int i;
+
+	for_each_sg(sglist, sg, nents, i)
+		sg->dma_address = dma_map_single(dev, sg_virt(sg), sg->length,
+						 dir);
+
+	debug_dma_map_sg(dev, sglist, nents, nents, dir);
+
+	return nents;
+}
+EXPORT_SYMBOL(dma_map_sg);
+
+
+void dma_unmap_sg(struct device *dev, struct scatterlist *sglist,
+		  int nents, enum dma_data_direction dir)
+{
+	struct scatterlist *sg;
+	int i;
+
+	for_each_sg(sglist, sg, nents, i)
+		dma_unmap_single(dev, sg_dma_address(sg), sg->length, dir);
+
+	debug_dma_unmap_sg(dev, sglist,	nents, dir);
+}
+EXPORT_SYMBOL(dma_unmap_sg);
+
+void dma_sync_single_for_cpu(struct device *dev, dma_addr_t handle,
+			     size_t size, enum dma_data_direction dir)
+{
+	c6x_dma_sync(handle, size, dir);
+
+	debug_dma_sync_single_for_cpu(dev, handle, size, dir);
+}
+EXPORT_SYMBOL(dma_sync_single_for_cpu);
+
+
+void dma_sync_single_for_device(struct device *dev, dma_addr_t handle,
+				size_t size, enum dma_data_direction dir)
+{
+	c6x_dma_sync(handle, size, dir);
+
+	debug_dma_sync_single_for_device(dev, handle, size, dir);
+}
+EXPORT_SYMBOL(dma_sync_single_for_device);
+
+
+void dma_sync_sg_for_cpu(struct device *dev, struct scatterlist *sglist,
+			 int nents, enum dma_data_direction dir)
+{
+	struct scatterlist *sg;
+	int i;
+
+	for_each_sg(sglist, sg, nents, i)
+		dma_sync_single_for_cpu(dev, sg_dma_address(sg),
+					sg->length, dir);
+
+	debug_dma_sync_sg_for_cpu(dev, sglist, nents, dir);
+}
+EXPORT_SYMBOL(dma_sync_sg_for_cpu);
+
+
+void dma_sync_sg_for_device(struct device *dev, struct scatterlist *sglist,
+			    int nents, enum dma_data_direction dir)
+{
+	struct scatterlist *sg;
+	int i;
+
+	for_each_sg(sglist, sg, nents, i)
+		dma_sync_single_for_device(dev, sg_dma_address(sg),
+					   sg->length, dir);
+
+	debug_dma_sync_sg_for_device(dev, sglist, nents, dir);
+}
+EXPORT_SYMBOL(dma_sync_sg_for_device);
+
+
+/* Number of entries preallocated for DMA-API debugging */
+#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
+
+static int __init dma_init(void)
+{
+	dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
+
+	return 0;
+}
+fs_initcall(dma_init);
diff --git a/arch/c6x/kernel/entry.S b/arch/c6x/kernel/entry.S
new file mode 100644
index 000000000000..3e977ccda827
--- /dev/null
+++ b/arch/c6x/kernel/entry.S
@@ -0,0 +1,803 @@
+;
+;  Port on Texas Instruments TMS320C6x architecture
+;
+;  Copyright (C) 2004-2011 Texas Instruments Incorporated
+;  Author: Aurelien Jacquiot (aurelien.jacquiot@virtuallogix.com)
+;  Updated for 2.6.34: Mark Salter <msalter@redhat.com>
+;
+;  This program is free software; you can redistribute it and/or modify
+;  it under the terms of the GNU General Public License version 2 as
+;  published by the Free Software Foundation.
+;
+
+#include <linux/sys.h>
+#include <linux/linkage.h>
+#include <asm/thread_info.h>
+#include <asm/asm-offsets.h>
+#include <asm/unistd.h>
+#include <asm/errno.h>
+
+; Registers naming
+#define DP	B14
+#define SP	B15
+
+#ifndef CONFIG_PREEMPT
+#define resume_kernel restore_all
+#endif
+
+	.altmacro
+
+	.macro MASK_INT reg
+	MVC	.S2	CSR,reg
+	CLR	.S2	reg,0,0,reg
+	MVC	.S2	reg,CSR
+	.endm
+
+	.macro UNMASK_INT reg
+	MVC	.S2	CSR,reg
+	SET	.S2	reg,0,0,reg
+	MVC	.S2	reg,CSR
+	.endm
+
+	.macro GET_THREAD_INFO reg
+	SHR	.S1X	SP,THREAD_SHIFT,reg
+	SHL	.S1	reg,THREAD_SHIFT,reg
+	.endm
+
+	;;
+	;;  This defines the normal kernel pt_regs layout.
+	;;
+	.macro SAVE_ALL __rp __tsr
+	STW	.D2T2	B0,*SP--[2]		; save original B0
+	MVKL	.S2	current_ksp,B0
+	MVKH	.S2	current_ksp,B0
+	LDW	.D2T2	*B0,B1			; KSP
+
+	NOP	3
+	STW	.D2T2	B1,*+SP[1]		; save original B1
+	XOR	.D2	SP,B1,B0		; (SP ^ KSP)
+	LDW	.D2T2	*+SP[1],B1		; restore B0/B1
+	LDW	.D2T2	*++SP[2],B0
+	SHR	.S2	B0,THREAD_SHIFT,B0	; 0 if already using kstack
+  [B0]	STDW	.D2T2	SP:DP,*--B1[1]		; user: save user sp/dp kstack
+  [B0]	MV	.S2	B1,SP			;    and switch to kstack
+||[!B0] STDW	.D2T2	SP:DP,*--SP[1]		; kernel: save on current stack
+
+	SUBAW	.D2	SP,2,SP
+
+	ADD	.D1X	SP,-8,A15
+ ||	STDW	.D2T1	A15:A14,*SP--[16]	; save A15:A14
+
+	STDW	.D2T2	B13:B12,*SP--[1]
+ ||	STDW	.D1T1	A13:A12,*A15--[1]
+ ||	MVC	.S2	__rp,B13
+
+	STDW	.D2T2	B11:B10,*SP--[1]
+ ||	STDW	.D1T1	A11:A10,*A15--[1]
+ ||	MVC	.S2	CSR,B12
+
+	STDW	.D2T2	B9:B8,*SP--[1]
+ ||	STDW	.D1T1	A9:A8,*A15--[1]
+ ||	MVC	.S2	RILC,B11
+	STDW	.D2T2	B7:B6,*SP--[1]
+ ||	STDW	.D1T1	A7:A6,*A15--[1]
+ ||	MVC	.S2	ILC,B10
+
+	STDW	.D2T2	B5:B4,*SP--[1]
+ ||	STDW	.D1T1	A5:A4,*A15--[1]
+
+	STDW	.D2T2	B3:B2,*SP--[1]
+ ||	STDW	.D1T1	A3:A2,*A15--[1]
+ ||	MVC	.S2	__tsr,B5
+
+	STDW	.D2T2	B1:B0,*SP--[1]
+ ||	STDW	.D1T1	A1:A0,*A15--[1]
+ ||	MV	.S1X	B5,A5
+
+	STDW	.D2T2	B31:B30,*SP--[1]
+ ||	STDW	.D1T1	A31:A30,*A15--[1]
+	STDW	.D2T2	B29:B28,*SP--[1]
+ ||	STDW	.D1T1	A29:A28,*A15--[1]
+	STDW	.D2T2	B27:B26,*SP--[1]
+ ||	STDW	.D1T1	A27:A26,*A15--[1]
+	STDW	.D2T2	B25:B24,*SP--[1]
+ ||	STDW	.D1T1	A25:A24,*A15--[1]
+	STDW	.D2T2	B23:B22,*SP--[1]
+ ||	STDW	.D1T1	A23:A22,*A15--[1]
+	STDW	.D2T2	B21:B20,*SP--[1]
+ ||	STDW	.D1T1	A21:A20,*A15--[1]
+	STDW	.D2T2	B19:B18,*SP--[1]
+ ||	STDW	.D1T1	A19:A18,*A15--[1]
+	STDW	.D2T2	B17:B16,*SP--[1]
+ ||	STDW	.D1T1	A17:A16,*A15--[1]
+
+	STDW	.D2T2	B13:B12,*SP--[1]	; save PC and CSR
+
+	STDW	.D2T2	B11:B10,*SP--[1]	; save RILC and ILC
+	STDW	.D2T1	A5:A4,*SP--[1]		; save TSR and orig A4
+
+	;; We left an unused word on the stack just above pt_regs.
+	;; It is used to save whether or not this frame is due to
+	;; a syscall. It is cleared here, but the syscall handler
+	;; sets it to a non-zero value.
+	MVK	.L2	0,B1
+	STW	.D2T2	B1,*+SP(REGS__END+8)	; clear syscall flag
+	.endm
+
+	.macro RESTORE_ALL __rp __tsr
+	LDDW	.D2T2	*++SP[1],B9:B8		; get TSR (B9)
+	LDDW	.D2T2	*++SP[1],B11:B10	; get RILC (B11) and ILC (B10)
+	LDDW	.D2T2	*++SP[1],B13:B12	; get PC (B13) and CSR (B12)
+
+	ADDAW	.D1X	SP,30,A15
+
+	LDDW	.D1T1	*++A15[1],A17:A16
+ ||	LDDW	.D2T2	*++SP[1],B17:B16
+	LDDW	.D1T1	*++A15[1],A19:A18
+ ||	LDDW	.D2T2	*++SP[1],B19:B18
+	LDDW	.D1T1	*++A15[1],A21:A20
+ ||	LDDW	.D2T2	*++SP[1],B21:B20
+	LDDW	.D1T1	*++A15[1],A23:A22
+ ||	LDDW	.D2T2	*++SP[1],B23:B22
+	LDDW	.D1T1	*++A15[1],A25:A24
+ ||	LDDW	.D2T2	*++SP[1],B25:B24
+	LDDW	.D1T1	*++A15[1],A27:A26
+ ||	LDDW	.D2T2	*++SP[1],B27:B26
+	LDDW	.D1T1	*++A15[1],A29:A28
+ ||	LDDW	.D2T2	*++SP[1],B29:B28
+	LDDW	.D1T1	*++A15[1],A31:A30
+ ||	LDDW	.D2T2	*++SP[1],B31:B30
+
+	LDDW	.D1T1	*++A15[1],A1:A0
+ ||	LDDW	.D2T2	*++SP[1],B1:B0
+
+	LDDW	.D1T1	*++A15[1],A3:A2
+ ||	LDDW	.D2T2	*++SP[1],B3:B2
+ ||	MVC	.S2	B9,__tsr
+	LDDW	.D1T1	*++A15[1],A5:A4
+ ||	LDDW	.D2T2	*++SP[1],B5:B4
+ ||	MVC	.S2	B11,RILC
+	LDDW	.D1T1	*++A15[1],A7:A6
+ ||	LDDW	.D2T2	*++SP[1],B7:B6
+ ||	MVC	.S2	B10,ILC
+
+	LDDW	.D1T1	*++A15[1],A9:A8
+ ||	LDDW	.D2T2	*++SP[1],B9:B8
+ ||	MVC	.S2	B13,__rp
+
+	LDDW	.D1T1	*++A15[1],A11:A10
+ ||	LDDW	.D2T2	*++SP[1],B11:B10
+ ||	MVC	.S2	B12,CSR
+
+	LDDW	.D1T1	*++A15[1],A13:A12
+ ||	LDDW	.D2T2	*++SP[1],B13:B12
+
+	MV	.D2X	A15,SP
+ ||	MVKL	.S1	current_ksp,A15
+	MVKH	.S1	current_ksp,A15
+ ||	ADDAW	.D1X	SP,6,A14
+	STW	.D1T1	A14,*A15	; save kernel stack pointer
+
+	LDDW	.D2T1	*++SP[1],A15:A14
+
+	B	.S2	__rp		; return from interruption
+	LDDW	.D2T2	*+SP[1],SP:DP
+	NOP	4
+	.endm
+
+	.section .text
+
+	;;
+	;; Jump to schedule() then return to ret_from_exception
+	;;
+_reschedule:
+#ifdef CONFIG_C6X_BIG_KERNEL
+	MVKL	.S1	schedule,A0
+	MVKH	.S1	schedule,A0
+	B	.S2X	A0
+#else
+	B	.S1	schedule
+#endif
+	ADDKPC	.S2	ret_from_exception,B3,4
+
+	;;
+	;; Called before syscall handler when process is being debugged
+	;;
+tracesys_on:
+#ifdef CONFIG_C6X_BIG_KERNEL
+	MVKL	.S1	syscall_trace_entry,A0
+	MVKH	.S1	syscall_trace_entry,A0
+	B	.S2X	A0
+#else
+	B	.S1	syscall_trace_entry
+#endif
+	ADDKPC	.S2	ret_from_syscall_trace,B3,3
+	ADD	.S1X	8,SP,A4
+
+ret_from_syscall_trace:
+	;; tracing returns (possibly new) syscall number
+	MV	.D2X	A4,B0
+ ||	MVK	.S2	__NR_syscalls,B1
+	CMPLTU	.L2	B0,B1,B1
+
+ [!B1]	BNOP	.S2	ret_from_syscall_function,5
+ ||	MVK	.S1	-ENOSYS,A4
+
+	;; reload syscall args from (possibly modified) stack frame
+	;; and get syscall handler addr from sys_call_table:
+	LDW	.D2T2	*+SP(REGS_B4+8),B4
+ ||	MVKL	.S2	sys_call_table,B1
+	LDW	.D2T1	*+SP(REGS_A6+8),A6
+ ||	MVKH	.S2	sys_call_table,B1
+	LDW	.D2T2	*+B1[B0],B0
+ ||	MVKL	.S2	ret_from_syscall_function,B3
+	LDW	.D2T2	*+SP(REGS_B6+8),B6
+ ||	MVKH	.S2	ret_from_syscall_function,B3
+	LDW	.D2T1	*+SP(REGS_A8+8),A8
+	LDW	.D2T2	*+SP(REGS_B8+8),B8
+	NOP
+	; B0 = sys_call_table[__NR_*]
+	BNOP	.S2	B0,5			; branch to syscall handler
+ ||	LDW	.D2T1	*+SP(REGS_ORIG_A4+8),A4
+
+syscall_exit_work:
+	AND	.D1	_TIF_SYSCALL_TRACE,A2,A0
+ [!A0]	BNOP	.S1	work_pending,5
+ [A0]	B	.S2	syscall_trace_exit
+	ADDKPC	.S2	resume_userspace,B3,1
+	MVC	.S2	CSR,B1
+	SET	.S2	B1,0,0,B1
+	MVC	.S2	B1,CSR		; enable ints
+
+work_pending:
+	AND	.D1	_TIF_NEED_RESCHED,A2,A0
+ [!A0]	BNOP	.S1	work_notifysig,5
+
+work_resched:
+#ifdef CONFIG_C6X_BIG_KERNEL
+	MVKL	.S1	schedule,A1
+	MVKH	.S1	schedule,A1
+	B	.S2X	A1
+#else
+	B	.S2	schedule
+#endif
+	ADDKPC	.S2	work_rescheduled,B3,4
+work_rescheduled:
+	;; make sure we don't miss an interrupt setting need_resched or
+	;; sigpending between sampling and the rti
+	MASK_INT B2
+	GET_THREAD_INFO A12
+	LDW	.D1T1	*+A12(THREAD_INFO_FLAGS),A2
+	MVK	.S1	_TIF_WORK_MASK,A1
+	MVK	.S1	_TIF_NEED_RESCHED,A3
+	NOP	2
+	AND	.D1	A1,A2,A0
+ ||	AND	.S1	A3,A2,A1
+ [!A0]	BNOP	.S1	restore_all,5
+ [A1]	BNOP	.S1	work_resched,5
+
+work_notifysig:
+	B	.S2	do_notify_resume
+	LDW	.D2T1	*+SP(REGS__END+8),A6 ; syscall flag
+	ADDKPC	.S2	resume_userspace,B3,1
+	ADD	.S1X	8,SP,A4		; pt_regs pointer is first arg
+	MV	.D2X	A2,B4		; thread_info flags is second arg
+
+	;;
+	;; On C64x+, the return way from exception and interrupt
+	;; is a little bit different
+	;;
+ENTRY(ret_from_exception)
+#ifdef CONFIG_PREEMPT
+	MASK_INT B2
+#endif
+
+ENTRY(ret_from_interrupt)
+	;;
+	;; Check if we are comming from user mode.
+	;;
+	LDW	.D2T2	*+SP(REGS_TSR+8),B0
+	MVK	.S2	0x40,B1
+	NOP	3
+	AND	.D2	B0,B1,B0
+ [!B0]	BNOP	.S2	resume_kernel,5
+
+resume_userspace:
+	;; make sure we don't miss an interrupt setting need_resched or
+	;; sigpending between sampling and the rti
+	MASK_INT B2
+	GET_THREAD_INFO A12
+	LDW	.D1T1	*+A12(THREAD_INFO_FLAGS),A2
+	MVK	.S1	_TIF_WORK_MASK,A1
+	MVK	.S1	_TIF_NEED_RESCHED,A3
+	NOP	2
+	AND	.D1	A1,A2,A0
+ [A0]	BNOP	.S1	work_pending,5
+	BNOP	.S1	restore_all,5
+
+	;;
+	;; System call handling
+	;; B0 = syscall number (in sys_call_table)
+	;; A4,B4,A6,B6,A8,B8 = arguments of the syscall function
+	;; A4 is the return value register
+	;;
+system_call_saved:
+	MVK	.L2	1,B2
+	STW	.D2T2	B2,*+SP(REGS__END+8)	; set syscall flag
+	MVC	.S2	B2,ECR			; ack the software exception
+
+	UNMASK_INT B2			; re-enable global IT
+
+system_call_saved_noack:
+	;; Check system call number
+	MVK	.S2	__NR_syscalls,B1
+#ifdef CONFIG_C6X_BIG_KERNEL
+ ||	MVKL	.S1	sys_ni_syscall,A0
+#endif
+	CMPLTU	.L2	B0,B1,B1
+#ifdef CONFIG_C6X_BIG_KERNEL
+ ||	MVKH	.S1	sys_ni_syscall,A0
+#endif
+
+	;; Check for ptrace
+	GET_THREAD_INFO A12
+
+#ifdef CONFIG_C6X_BIG_KERNEL
+ [!B1]	B	.S2X	A0
+#else
+ [!B1]	B	.S2	sys_ni_syscall
+#endif
+ [!B1]	ADDKPC	.S2	ret_from_syscall_function,B3,4
+
+	;; Get syscall handler addr from sys_call_table
+	;; call tracesys_on or call syscall handler
+	LDW	.D1T1	*+A12(THREAD_INFO_FLAGS),A2
+ ||	MVKL	.S2	sys_call_table,B1
+	MVKH	.S2	sys_call_table,B1
+	LDW	.D2T2	*+B1[B0],B0
+	NOP	2
+	; A2 = thread_info flags
+	AND	.D1	_TIF_SYSCALL_TRACE,A2,A2
+ [A2]	BNOP	.S1	tracesys_on,5
+	;; B0 = _sys_call_table[__NR_*]
+	B	.S2	B0
+	ADDKPC	.S2	ret_from_syscall_function,B3,4
+
+ret_from_syscall_function:
+	STW	.D2T1	A4,*+SP(REGS_A4+8)	; save return value in A4
+						; original A4 is in orig_A4
+syscall_exit:
+	;; make sure we don't miss an interrupt setting need_resched or
+	;; sigpending between sampling and the rti
+	MASK_INT B2
+	LDW	.D1T1	*+A12(THREAD_INFO_FLAGS),A2
+	MVK	.S1	_TIF_ALLWORK_MASK,A1
+	NOP	3
+	AND	.D1	A1,A2,A2 ; check for work to do
+ [A2]	BNOP	.S1	syscall_exit_work,5
+
+restore_all:
+	RESTORE_ALL NRP,NTSR
+
+	;;
+	;; After a fork we jump here directly from resume,
+	;; so that A4 contains the previous task structure.
+	;;
+ENTRY(ret_from_fork)
+#ifdef CONFIG_C6X_BIG_KERNEL
+	MVKL	.S1	schedule_tail,A0
+	MVKH	.S1	schedule_tail,A0
+	B	.S2X	A0
+#else
+	B	.S2	schedule_tail
+#endif
+	ADDKPC	.S2	ret_from_fork_2,B3,4
+ret_from_fork_2:
+	;; return 0 in A4 for child process
+	GET_THREAD_INFO A12
+	BNOP	.S2	syscall_exit,3
+	MVK	.L2	0,B0
+	STW	.D2T2	B0,*+SP(REGS_A4+8)
+ENDPROC(ret_from_fork)
+
+	;;
+	;; These are the interrupt handlers, responsible for calling __do_IRQ()
+	;; int6 is used for syscalls (see _system_call entry)
+	;;
+	.macro SAVE_ALL_INT
+	SAVE_ALL IRP,ITSR
+	.endm
+
+	.macro CALL_INT int
+#ifdef CONFIG_C6X_BIG_KERNEL
+	MVKL	.S1	c6x_do_IRQ,A0
+	MVKH	.S1	c6x_do_IRQ,A0
+	BNOP	.S2X	A0,1
+	MVK	.S1	int,A4
+	ADDAW	.D2	SP,2,B4
+	MVKL	.S2	ret_from_interrupt,B3
+	MVKH	.S2	ret_from_interrupt,B3
+#else
+	CALLP   .S2	c6x_do_IRQ,B3
+ ||	MVK	.S1	int,A4
+ ||	ADDAW	.D2	SP,2,B4
+	B	.S1	ret_from_interrupt
+	NOP	5
+#endif
+	.endm
+
+ENTRY(_int4_handler)
+	SAVE_ALL_INT
+	CALL_INT 4
+ENDPROC(_int4_handler)
+
+ENTRY(_int5_handler)
+	SAVE_ALL_INT
+	CALL_INT 5
+ENDPROC(_int5_handler)
+
+ENTRY(_int6_handler)
+	SAVE_ALL_INT
+	CALL_INT 6
+ENDPROC(_int6_handler)
+
+ENTRY(_int7_handler)
+	SAVE_ALL_INT
+	CALL_INT 7
+ENDPROC(_int7_handler)
+
+ENTRY(_int8_handler)
+	SAVE_ALL_INT
+	CALL_INT 8
+ENDPROC(_int8_handler)
+
+ENTRY(_int9_handler)
+	SAVE_ALL_INT
+	CALL_INT 9
+ENDPROC(_int9_handler)
+
+ENTRY(_int10_handler)
+	SAVE_ALL_INT
+	CALL_INT 10
+ENDPROC(_int10_handler)
+
+ENTRY(_int11_handler)
+	SAVE_ALL_INT
+	CALL_INT 11
+ENDPROC(_int11_handler)
+
+ENTRY(_int12_handler)
+	SAVE_ALL_INT
+	CALL_INT 12
+ENDPROC(_int12_handler)
+
+ENTRY(_int13_handler)
+	SAVE_ALL_INT
+	CALL_INT 13
+ENDPROC(_int13_handler)
+
+ENTRY(_int14_handler)
+	SAVE_ALL_INT
+	CALL_INT 14
+ENDPROC(_int14_handler)
+
+ENTRY(_int15_handler)
+	SAVE_ALL_INT
+	CALL_INT 15
+ENDPROC(_int15_handler)
+
+	;;
+	;; Handler for uninitialized and spurious interrupts
+	;;
+ENTRY(_bad_interrupt)
+	B	.S2	IRP
+	NOP	5
+ENDPROC(_bad_interrupt)
+
+	;;
+	;; Entry for NMI/exceptions/syscall
+	;;
+ENTRY(_nmi_handler)
+	SAVE_ALL NRP,NTSR
+
+	MVC	.S2	EFR,B2
+	CMPEQ	.L2	1,B2,B2
+ ||	MVC	.S2	TSR,B1
+	CLR	.S2	B1,10,10,B1
+	MVC	.S2	B1,TSR
+#ifdef CONFIG_C6X_BIG_KERNEL
+ [!B2]	MVKL	.S1	process_exception,A0
+ [!B2]	MVKH	.S1	process_exception,A0
+ [!B2]	B	.S2X	A0
+#else
+ [!B2]	B	.S2	process_exception
+#endif
+ [B2]	B	.S2	system_call_saved
+ [!B2]	ADDAW	.D2	SP,2,B1
+ [!B2]	MV	.D1X	B1,A4
+	ADDKPC	.S2	ret_from_trap,B3,2
+
+ret_from_trap:
+	MV	.D2X	A4,B0
+ [!B0]	BNOP	.S2	ret_from_exception,5
+
+#ifdef CONFIG_C6X_BIG_KERNEL
+	MVKL	.S2	system_call_saved_noack,B3
+	MVKH	.S2	system_call_saved_noack,B3
+#endif
+	LDW	.D2T2	*+SP(REGS_B0+8),B0
+	LDW	.D2T1	*+SP(REGS_A4+8),A4
+	LDW	.D2T2	*+SP(REGS_B4+8),B4
+	LDW	.D2T1	*+SP(REGS_A6+8),A6
+	LDW	.D2T2	*+SP(REGS_B6+8),B6
+	LDW	.D2T1	*+SP(REGS_A8+8),A8
+#ifdef CONFIG_C6X_BIG_KERNEL
+ ||	B	.S2	B3
+#else
+ ||	B	.S2	system_call_saved_noack
+#endif
+	LDW	.D2T2	*+SP(REGS_B8+8),B8
+	NOP	4
+ENDPROC(_nmi_handler)
+
+	;;
+	;; Jump to schedule() then return to ret_from_isr
+	;;
+#ifdef	CONFIG_PREEMPT
+resume_kernel:
+	GET_THREAD_INFO A12
+	LDW	.D1T1	*+A12(THREAD_INFO_PREEMPT_COUNT),A1
+	NOP	4
+ [A1]	BNOP	.S2	restore_all,5
+
+preempt_schedule:
+	GET_THREAD_INFO A2
+	LDW	.D1T1	*+A2(THREAD_INFO_FLAGS),A1
+#ifdef CONFIG_C6X_BIG_KERNEL
+	MVKL	.S2	preempt_schedule_irq,B0
+	MVKH	.S2	preempt_schedule_irq,B0
+	NOP	2
+#else
+	NOP	4
+#endif
+	AND	.D1	_TIF_NEED_RESCHED,A1,A1
+ [!A1]	BNOP	.S2	restore_all,5
+#ifdef CONFIG_C6X_BIG_KERNEL
+	B	.S2	B0
+#else
+	B	.S2	preempt_schedule_irq
+#endif
+	ADDKPC	.S2	preempt_schedule,B3,4
+#endif /* CONFIG_PREEMPT */
+
+ENTRY(enable_exception)
+	DINT
+	MVC	.S2	TSR,B0
+	MVC	.S2	B3,NRP
+	MVK	.L2	0xc,B1
+	OR	.D2	B0,B1,B0
+	MVC	.S2	B0,TSR			;  Set GEE and XEN in TSR
+	B	.S2	NRP
+	NOP	5
+ENDPROC(enable_exception)
+
+ENTRY(sys_sigaltstack)
+#ifdef CONFIG_C6X_BIG_KERNEL
+	MVKL	.S1	do_sigaltstack,A0	; branch to do_sigaltstack
+	MVKH	.S1	do_sigaltstack,A0
+	B	.S2X	A0
+#else
+	B	.S2	do_sigaltstack
+#endif
+	LDW	.D2T1	*+SP(REGS_SP+8),A6
+	NOP	4
+ENDPROC(sys_sigaltstack)
+
+	;; kernel_execve
+ENTRY(kernel_execve)
+	MVK	.S2	__NR_execve,B0
+	SWE
+	BNOP	.S2	B3,5
+ENDPROC(kernel_execve)
+
+	;;
+	;; Special system calls
+	;; return address is in B3
+	;;
+ENTRY(sys_clone)
+	ADD	.D1X	SP,8,A4
+#ifdef CONFIG_C6X_BIG_KERNEL
+ ||	MVKL	.S1	sys_c6x_clone,A0
+	MVKH	.S1	sys_c6x_clone,A0
+	BNOP	.S2X	A0,5
+#else
+ ||	B	.S2	sys_c6x_clone
+	NOP	5
+#endif
+ENDPROC(sys_clone)
+
+ENTRY(sys_rt_sigreturn)
+	ADD	.D1X	SP,8,A4
+#ifdef CONFIG_C6X_BIG_KERNEL
+ ||	MVKL	.S1	do_rt_sigreturn,A0
+	MVKH	.S1	do_rt_sigreturn,A0
+	BNOP	.S2X	A0,5
+#else
+ ||	B	.S2	do_rt_sigreturn
+	NOP	5
+#endif
+ENDPROC(sys_rt_sigreturn)
+
+ENTRY(sys_execve)
+	ADDAW	.D2	SP,2,B6		; put regs addr in 4th parameter
+					; & adjust regs stack addr
+	LDW	.D2T2	*+SP(REGS_B4+8),B4
+
+	;; c6x_execve(char *name, char **argv,
+	;;            char **envp, struct pt_regs *regs)
+#ifdef CONFIG_C6X_BIG_KERNEL
+ ||	MVKL	.S1	sys_c6x_execve,A0
+	MVKH	.S1	sys_c6x_execve,A0
+	B	.S2X	A0
+#else
+ ||	B	.S2	sys_c6x_execve
+#endif
+	STW	.D2T2	B3,*SP--[2]
+	ADDKPC	.S2	ret_from_c6x_execve,B3,3
+
+ret_from_c6x_execve:
+	LDW	.D2T2	*++SP[2],B3
+	NOP	4
+	BNOP	.S2	B3,5
+ENDPROC(sys_execve)
+
+ENTRY(sys_pread_c6x)
+	MV	.D2X	A8,B7
+#ifdef CONFIG_C6X_BIG_KERNEL
+ ||	MVKL	.S1	sys_pread64,A0
+	MVKH	.S1	sys_pread64,A0
+	BNOP	.S2X	A0,5
+#else
+ ||	B	.S2	sys_pread64
+	NOP	5
+#endif
+ENDPROC(sys_pread_c6x)
+
+ENTRY(sys_pwrite_c6x)
+	MV	.D2X	A8,B7
+#ifdef CONFIG_C6X_BIG_KERNEL
+ ||	MVKL	.S1	sys_pwrite64,A0
+	MVKH	.S1	sys_pwrite64,A0
+	BNOP	.S2X	A0,5
+#else
+ ||	B	.S2	sys_pwrite64
+	NOP	5
+#endif
+ENDPROC(sys_pwrite_c6x)
+
+;; On Entry
+;;   A4 - path
+;;   B4 - offset_lo (LE), offset_hi (BE)
+;;   A6 - offset_lo (BE), offset_hi (LE)
+ENTRY(sys_truncate64_c6x)
+#ifdef CONFIG_CPU_BIG_ENDIAN
+	MV	.S2	B4,B5
+	MV	.D2X	A6,B4
+#else
+	MV	.D2X	A6,B5
+#endif
+#ifdef CONFIG_C6X_BIG_KERNEL
+ ||	MVKL	.S1	sys_truncate64,A0
+	MVKH	.S1	sys_truncate64,A0
+	BNOP	.S2X	A0,5
+#else
+ ||	B	.S2	sys_truncate64
+	NOP	5
+#endif
+ENDPROC(sys_truncate64_c6x)
+
+;; On Entry
+;;   A4 - fd
+;;   B4 - offset_lo (LE), offset_hi (BE)
+;;   A6 - offset_lo (BE), offset_hi (LE)
+ENTRY(sys_ftruncate64_c6x)
+#ifdef CONFIG_CPU_BIG_ENDIAN
+	MV	.S2	B4,B5
+	MV	.D2X	A6,B4
+#else
+	MV	.D2X	A6,B5
+#endif
+#ifdef CONFIG_C6X_BIG_KERNEL
+ ||	MVKL	.S1	sys_ftruncate64,A0
+	MVKH	.S1	sys_ftruncate64,A0
+	BNOP	.S2X	A0,5
+#else
+ ||	B	.S2	sys_ftruncate64
+	NOP	5
+#endif
+ENDPROC(sys_ftruncate64_c6x)
+
+#ifdef __ARCH_WANT_SYSCALL_OFF_T
+;; On Entry
+;;   A4 - fd
+;;   B4 - offset_lo (LE), offset_hi (BE)
+;;   A6 - offset_lo (BE), offset_hi (LE)
+;;   B6 - len
+;;   A8 - advice
+ENTRY(sys_fadvise64_c6x)
+#ifdef CONFIG_C6X_BIG_KERNEL
+	MVKL	.S1	sys_fadvise64,A0
+	MVKH	.S1	sys_fadvise64,A0
+	BNOP	.S2X	A0,2
+#else
+	B	.S2	sys_fadvise64
+	NOP	2
+#endif
+#ifdef CONFIG_CPU_BIG_ENDIAN
+	MV	.L2	B4,B5
+ ||	MV	.D2X	A6,B4
+#else
+	MV	.D2X	A6,B5
+#endif
+	MV	.D1X	B6,A6
+	MV	.D2X	A8,B6
+#endif
+ENDPROC(sys_fadvise64_c6x)
+
+;; On Entry
+;;   A4 - fd
+;;   B4 - offset_lo (LE), offset_hi (BE)
+;;   A6 - offset_lo (BE), offset_hi (LE)
+;;   B6 - len_lo (LE), len_hi (BE)
+;;   A8 - len_lo (BE), len_hi (LE)
+;;   B8 - advice
+ENTRY(sys_fadvise64_64_c6x)
+#ifdef CONFIG_C6X_BIG_KERNEL
+	MVKL	.S1	sys_fadvise64_64,A0
+	MVKH	.S1	sys_fadvise64_64,A0
+	BNOP	.S2X	A0,2
+#else
+	B	.S2	sys_fadvise64_64
+	NOP	2
+#endif
+#ifdef CONFIG_CPU_BIG_ENDIAN
+	MV	.L2	B4,B5
+ ||	MV	.D2X	A6,B4
+	MV	.L1	A8,A6
+ ||	MV	.D1X	B6,A7
+#else
+	MV	.D2X	A6,B5
+	MV	.L1	A8,A7
+ ||	MV	.D1X	B6,A6
+#endif
+	MV	.L2	B8,B6
+ENDPROC(sys_fadvise64_64_c6x)
+
+;; On Entry
+;;   A4 - fd
+;;   B4 - mode
+;;   A6 - offset_hi
+;;   B6 - offset_lo
+;;   A8 - len_hi
+;;   B8 - len_lo
+ENTRY(sys_fallocate_c6x)
+#ifdef CONFIG_C6X_BIG_KERNEL
+	MVKL	.S1	sys_fallocate,A0
+	MVKH	.S1	sys_fallocate,A0
+	BNOP	.S2X	A0,1
+#else
+	B	.S2	sys_fallocate
+	NOP
+#endif
+	MV	.D1	A6,A7
+	MV	.D1X	B6,A6
+	MV	.D2X	A8,B7
+	MV	.D2	B8,B6
+ENDPROC(sys_fallocate_c6x)
+
+	;; put this in .neardata for faster access when using DSBT mode
+	.section .neardata,"aw",@progbits
+	.global	current_ksp
+	.hidden	current_ksp
+current_ksp:
+	.word	init_thread_union + THREAD_START_SP
diff --git a/arch/c6x/kernel/head.S b/arch/c6x/kernel/head.S
new file mode 100644
index 000000000000..133eab6edf6b
--- /dev/null
+++ b/arch/c6x/kernel/head.S
@@ -0,0 +1,84 @@
+;
+;  Port on Texas Instruments TMS320C6x architecture
+;
+;  Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated
+;  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+;
+;  This program is free software; you can redistribute it and/or modify
+;  it under the terms of the GNU General Public License version 2 as
+;  published by the Free Software Foundation.
+;
+#include <linux/linkage.h>
+#include <linux/of_fdt.h>
+#include <asm/asm-offsets.h>
+
+	__HEAD
+ENTRY(_c_int00)
+	;; Save magic and pointer
+	MV	.S1	A4,A10
+	MV	.S2	B4,B10
+	MVKL	.S2	__bss_start,B5
+	MVKH	.S2	__bss_start,B5
+	MVKL	.S2	__bss_stop,B6
+	MVKH	.S2	__bss_stop,B6
+	SUB	.L2	B6,B5,B6 ; bss size
+
+	;; Set the stack pointer
+	MVKL	.S2	current_ksp,B0
+	MVKH	.S2	current_ksp,B0
+	LDW	.D2T2	*B0,B15
+
+	;; clear bss
+	SHR	.S2	B6,3,B0	  ; number of dwords to clear
+	ZERO	.L2	B13
+	ZERO	.L2	B12
+bss_loop:
+	BDEC	.S2	bss_loop,B0
+	NOP	3
+	CMPLT	.L2	B0,0,B1
+ [!B1]	STDW	.D2T2	B13:B12,*B5++[1]
+
+	NOP	4
+	AND	.D2	~7,B15,B15
+
+	;; Clear GIE and PGIE
+	MVC	.S2	CSR,B2
+	CLR	.S2	B2,0,1,B2
+	MVC	.S2	B2,CSR
+	MVC	.S2	TSR,B2
+	CLR	.S2	B2,0,1,B2
+	MVC	.S2	B2,TSR
+	MVC	.S2	ITSR,B2
+	CLR	.S2	B2,0,1,B2
+	MVC	.S2	B2,ITSR
+	MVC	.S2	NTSR,B2
+	CLR	.S2	B2,0,1,B2
+	MVC	.S2	B2,NTSR
+
+	;; pass DTB pointer to machine_init (or zero if none)
+	MVKL	.S1	OF_DT_HEADER,A0
+	MVKH	.S1	OF_DT_HEADER,A0
+	CMPEQ	.L1	A10,A0,A0
+  [A0]	MV	.S1X	B10,A4
+  [!A0] MVK	.S1	0,A4
+
+#ifdef CONFIG_C6X_BIG_KERNEL
+	MVKL	.S1	machine_init,A0
+	MVKH	.S1	machine_init,A0
+	B	.S2X	A0
+	ADDKPC  .S2     0f,B3,4
+0:
+#else
+	CALLP	.S2	machine_init,B3
+#endif
+
+	;; Jump to Linux init
+#ifdef CONFIG_C6X_BIG_KERNEL
+	MVKL	.S1	start_kernel,A0
+	MVKH	.S1	start_kernel,A0
+	B	.S2X	A0
+#else
+	B	.S2	start_kernel
+#endif
+	NOP	5
+L1:	BNOP	.S2	L1,5
diff --git a/arch/c6x/kernel/irq.c b/arch/c6x/kernel/irq.c
new file mode 100644
index 000000000000..0929e4b2b244
--- /dev/null
+++ b/arch/c6x/kernel/irq.c
@@ -0,0 +1,728 @@
+/*
+ *  Copyright (C) 2011 Texas Instruments Incorporated
+ *
+ *  This borrows heavily from powerpc version, which is:
+ *
+ *  Derived from arch/i386/kernel/irq.c
+ *    Copyright (C) 1992 Linus Torvalds
+ *  Adapted from arch/i386 by Gary Thomas
+ *    Copyright (C) 1995-1996 Gary Thomas (gdt@linuxppc.org)
+ *  Updated and modified by Cort Dougan <cort@fsmlabs.com>
+ *    Copyright (C) 1996-2001 Cort Dougan
+ *  Adapted for Power Macintosh by Paul Mackerras
+ *    Copyright (C) 1996 Paul Mackerras (paulus@cs.anu.edu.au)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+#include <linux/slab.h>
+#include <linux/seq_file.h>
+#include <linux/radix-tree.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_irq.h>
+#include <linux/interrupt.h>
+#include <linux/kernel_stat.h>
+
+#include <asm/megamod-pic.h>
+
+unsigned long irq_err_count;
+
+static DEFINE_RAW_SPINLOCK(core_irq_lock);
+
+static void mask_core_irq(struct irq_data *data)
+{
+	unsigned int prio = data->irq;
+
+	BUG_ON(prio < 4 || prio >= NR_PRIORITY_IRQS);
+
+	raw_spin_lock(&core_irq_lock);
+	and_creg(IER, ~(1 << prio));
+	raw_spin_unlock(&core_irq_lock);
+}
+
+static void unmask_core_irq(struct irq_data *data)
+{
+	unsigned int prio = data->irq;
+
+	raw_spin_lock(&core_irq_lock);
+	or_creg(IER, 1 << prio);
+	raw_spin_unlock(&core_irq_lock);
+}
+
+static struct irq_chip core_chip = {
+	.name		= "core",
+	.irq_mask	= mask_core_irq,
+	.irq_unmask	= unmask_core_irq,
+};
+
+asmlinkage void c6x_do_IRQ(unsigned int prio, struct pt_regs *regs)
+{
+	struct pt_regs *old_regs = set_irq_regs(regs);
+
+	irq_enter();
+
+	BUG_ON(prio < 4 || prio >= NR_PRIORITY_IRQS);
+
+	generic_handle_irq(prio);
+
+	irq_exit();
+
+	set_irq_regs(old_regs);
+}
+
+static struct irq_host *core_host;
+
+static int core_host_map(struct irq_host *h, unsigned int virq,
+			 irq_hw_number_t hw)
+{
+	if (hw < 4 || hw >= NR_PRIORITY_IRQS)
+		return -EINVAL;
+
+	irq_set_status_flags(virq, IRQ_LEVEL);
+	irq_set_chip_and_handler(virq, &core_chip, handle_level_irq);
+	return 0;
+}
+
+static struct irq_host_ops core_host_ops = {
+	.map = core_host_map,
+};
+
+void __init init_IRQ(void)
+{
+	struct device_node *np;
+
+	/* Mask all priority IRQs */
+	and_creg(IER, ~0xfff0);
+
+	np = of_find_compatible_node(NULL, NULL, "ti,c64x+core-pic");
+	if (np != NULL) {
+		/* create the core host */
+		core_host = irq_alloc_host(np, IRQ_HOST_MAP_PRIORITY, 0,
+					   &core_host_ops, 0);
+		if (core_host)
+			irq_set_default_host(core_host);
+		of_node_put(np);
+	}
+
+	printk(KERN_INFO "Core interrupt controller initialized\n");
+
+	/* now we're ready for other SoC controllers */
+	megamod_pic_init();
+
+	/* Clear all general IRQ flags */
+	set_creg(ICR, 0xfff0);
+}
+
+void ack_bad_irq(int irq)
+{
+	printk(KERN_ERR "IRQ: spurious interrupt %d\n", irq);
+	irq_err_count++;
+}
+
+int arch_show_interrupts(struct seq_file *p, int prec)
+{
+	seq_printf(p, "%*s: %10lu\n", prec, "Err", irq_err_count);
+	return 0;
+}
+
+/*
+ * IRQ controller and virtual interrupts
+ */
+
+/* The main irq map itself is an array of NR_IRQ entries containing the
+ * associate host and irq number. An entry with a host of NULL is free.
+ * An entry can be allocated if it's free, the allocator always then sets
+ * hwirq first to the host's invalid irq number and then fills ops.
+ */
+struct irq_map_entry {
+	irq_hw_number_t	hwirq;
+	struct irq_host	*host;
+};
+
+static LIST_HEAD(irq_hosts);
+static DEFINE_RAW_SPINLOCK(irq_big_lock);
+static DEFINE_MUTEX(revmap_trees_mutex);
+static struct irq_map_entry irq_map[NR_IRQS];
+static unsigned int irq_virq_count = NR_IRQS;
+static struct irq_host *irq_default_host;
+
+irq_hw_number_t irqd_to_hwirq(struct irq_data *d)
+{
+	return irq_map[d->irq].hwirq;
+}
+EXPORT_SYMBOL_GPL(irqd_to_hwirq);
+
+irq_hw_number_t virq_to_hw(unsigned int virq)
+{
+	return irq_map[virq].hwirq;
+}
+EXPORT_SYMBOL_GPL(virq_to_hw);
+
+bool virq_is_host(unsigned int virq, struct irq_host *host)
+{
+	return irq_map[virq].host == host;
+}
+EXPORT_SYMBOL_GPL(virq_is_host);
+
+static int default_irq_host_match(struct irq_host *h, struct device_node *np)
+{
+	return h->of_node != NULL && h->of_node == np;
+}
+
+struct irq_host *irq_alloc_host(struct device_node *of_node,
+				unsigned int revmap_type,
+				unsigned int revmap_arg,
+				struct irq_host_ops *ops,
+				irq_hw_number_t inval_irq)
+{
+	struct irq_host *host;
+	unsigned int size = sizeof(struct irq_host);
+	unsigned int i;
+	unsigned int *rmap;
+	unsigned long flags;
+
+	/* Allocate structure and revmap table if using linear mapping */
+	if (revmap_type == IRQ_HOST_MAP_LINEAR)
+		size += revmap_arg * sizeof(unsigned int);
+	host = kzalloc(size, GFP_KERNEL);
+	if (host == NULL)
+		return NULL;
+
+	/* Fill structure */
+	host->revmap_type = revmap_type;
+	host->inval_irq = inval_irq;
+	host->ops = ops;
+	host->of_node = of_node_get(of_node);
+
+	if (host->ops->match == NULL)
+		host->ops->match = default_irq_host_match;
+
+	raw_spin_lock_irqsave(&irq_big_lock, flags);
+
+	/* Check for the priority controller. */
+	if (revmap_type == IRQ_HOST_MAP_PRIORITY) {
+		if (irq_map[0].host != NULL) {
+			raw_spin_unlock_irqrestore(&irq_big_lock, flags);
+			of_node_put(host->of_node);
+			kfree(host);
+			return NULL;
+		}
+		irq_map[0].host = host;
+	}
+
+	list_add(&host->link, &irq_hosts);
+	raw_spin_unlock_irqrestore(&irq_big_lock, flags);
+
+	/* Additional setups per revmap type */
+	switch (revmap_type) {
+	case IRQ_HOST_MAP_PRIORITY:
+		/* 0 is always the invalid number for priority */
+		host->inval_irq = 0;
+		/* setup us as the host for all priority interrupts */
+		for (i = 1; i < NR_PRIORITY_IRQS; i++) {
+			irq_map[i].hwirq = i;
+			smp_wmb();
+			irq_map[i].host = host;
+			smp_wmb();
+
+			ops->map(host, i, i);
+		}
+		break;
+	case IRQ_HOST_MAP_LINEAR:
+		rmap = (unsigned int *)(host + 1);
+		for (i = 0; i < revmap_arg; i++)
+			rmap[i] = NO_IRQ;
+		host->revmap_data.linear.size = revmap_arg;
+		smp_wmb();
+		host->revmap_data.linear.revmap = rmap;
+		break;
+	case IRQ_HOST_MAP_TREE:
+		INIT_RADIX_TREE(&host->revmap_data.tree, GFP_KERNEL);
+		break;
+	default:
+		break;
+	}
+
+	pr_debug("irq: Allocated host of type %d @0x%p\n", revmap_type, host);
+
+	return host;
+}
+
+struct irq_host *irq_find_host(struct device_node *node)
+{
+	struct irq_host *h, *found = NULL;
+	unsigned long flags;
+
+	/* We might want to match the legacy controller last since
+	 * it might potentially be set to match all interrupts in
+	 * the absence of a device node. This isn't a problem so far
+	 * yet though...
+	 */
+	raw_spin_lock_irqsave(&irq_big_lock, flags);
+	list_for_each_entry(h, &irq_hosts, link)
+		if (h->ops->match(h, node)) {
+			found = h;
+			break;
+		}
+	raw_spin_unlock_irqrestore(&irq_big_lock, flags);
+	return found;
+}
+EXPORT_SYMBOL_GPL(irq_find_host);
+
+void irq_set_default_host(struct irq_host *host)
+{
+	pr_debug("irq: Default host set to @0x%p\n", host);
+
+	irq_default_host = host;
+}
+
+void irq_set_virq_count(unsigned int count)
+{
+	pr_debug("irq: Trying to set virq count to %d\n", count);
+
+	BUG_ON(count < NR_PRIORITY_IRQS);
+	if (count < NR_IRQS)
+		irq_virq_count = count;
+}
+
+static int irq_setup_virq(struct irq_host *host, unsigned int virq,
+			    irq_hw_number_t hwirq)
+{
+	int res;
+
+	res = irq_alloc_desc_at(virq, 0);
+	if (res != virq) {
+		pr_debug("irq: -> allocating desc failed\n");
+		goto error;
+	}
+
+	/* map it */
+	smp_wmb();
+	irq_map[virq].hwirq = hwirq;
+	smp_mb();
+
+	if (host->ops->map(host, virq, hwirq)) {
+		pr_debug("irq: -> mapping failed, freeing\n");
+		goto errdesc;
+	}
+
+	irq_clear_status_flags(virq, IRQ_NOREQUEST);
+
+	return 0;
+
+errdesc:
+	irq_free_descs(virq, 1);
+error:
+	irq_free_virt(virq, 1);
+	return -1;
+}
+
+unsigned int irq_create_direct_mapping(struct irq_host *host)
+{
+	unsigned int virq;
+
+	if (host == NULL)
+		host = irq_default_host;
+
+	BUG_ON(host == NULL);
+	WARN_ON(host->revmap_type != IRQ_HOST_MAP_NOMAP);
+
+	virq = irq_alloc_virt(host, 1, 0);
+	if (virq == NO_IRQ) {
+		pr_debug("irq: create_direct virq allocation failed\n");
+		return NO_IRQ;
+	}
+
+	pr_debug("irq: create_direct obtained virq %d\n", virq);
+
+	if (irq_setup_virq(host, virq, virq))
+		return NO_IRQ;
+
+	return virq;
+}
+
+unsigned int irq_create_mapping(struct irq_host *host,
+				irq_hw_number_t hwirq)
+{
+	unsigned int virq, hint;
+
+	pr_debug("irq: irq_create_mapping(0x%p, 0x%lx)\n", host, hwirq);
+
+	/* Look for default host if nececssary */
+	if (host == NULL)
+		host = irq_default_host;
+	if (host == NULL) {
+		printk(KERN_WARNING "irq_create_mapping called for"
+		       " NULL host, hwirq=%lx\n", hwirq);
+		WARN_ON(1);
+		return NO_IRQ;
+	}
+	pr_debug("irq: -> using host @%p\n", host);
+
+	/* Check if mapping already exists */
+	virq = irq_find_mapping(host, hwirq);
+	if (virq != NO_IRQ) {
+		pr_debug("irq: -> existing mapping on virq %d\n", virq);
+		return virq;
+	}
+
+	/* Allocate a virtual interrupt number */
+	hint = hwirq % irq_virq_count;
+	virq = irq_alloc_virt(host, 1, hint);
+	if (virq == NO_IRQ) {
+		pr_debug("irq: -> virq allocation failed\n");
+		return NO_IRQ;
+	}
+
+	if (irq_setup_virq(host, virq, hwirq))
+		return NO_IRQ;
+
+	pr_debug("irq: irq %lu on host %s mapped to virtual irq %u\n",
+		hwirq, host->of_node ? host->of_node->full_name : "null", virq);
+
+	return virq;
+}
+EXPORT_SYMBOL_GPL(irq_create_mapping);
+
+unsigned int irq_create_of_mapping(struct device_node *controller,
+				   const u32 *intspec, unsigned int intsize)
+{
+	struct irq_host *host;
+	irq_hw_number_t hwirq;
+	unsigned int type = IRQ_TYPE_NONE;
+	unsigned int virq;
+
+	if (controller == NULL)
+		host = irq_default_host;
+	else
+		host = irq_find_host(controller);
+	if (host == NULL) {
+		printk(KERN_WARNING "irq: no irq host found for %s !\n",
+		       controller->full_name);
+		return NO_IRQ;
+	}
+
+	/* If host has no translation, then we assume interrupt line */
+	if (host->ops->xlate == NULL)
+		hwirq = intspec[0];
+	else {
+		if (host->ops->xlate(host, controller, intspec, intsize,
+				     &hwirq, &type))
+			return NO_IRQ;
+	}
+
+	/* Create mapping */
+	virq = irq_create_mapping(host, hwirq);
+	if (virq == NO_IRQ)
+		return virq;
+
+	/* Set type if specified and different than the current one */
+	if (type != IRQ_TYPE_NONE &&
+	    type != (irqd_get_trigger_type(irq_get_irq_data(virq))))
+		irq_set_irq_type(virq, type);
+	return virq;
+}
+EXPORT_SYMBOL_GPL(irq_create_of_mapping);
+
+void irq_dispose_mapping(unsigned int virq)
+{
+	struct irq_host *host;
+	irq_hw_number_t hwirq;
+
+	if (virq == NO_IRQ)
+		return;
+
+	/* Never unmap priority interrupts */
+	if (virq < NR_PRIORITY_IRQS)
+		return;
+
+	host = irq_map[virq].host;
+	if (WARN_ON(host == NULL))
+		return;
+
+	irq_set_status_flags(virq, IRQ_NOREQUEST);
+
+	/* remove chip and handler */
+	irq_set_chip_and_handler(virq, NULL, NULL);
+
+	/* Make sure it's completed */
+	synchronize_irq(virq);
+
+	/* Tell the PIC about it */
+	if (host->ops->unmap)
+		host->ops->unmap(host, virq);
+	smp_mb();
+
+	/* Clear reverse map */
+	hwirq = irq_map[virq].hwirq;
+	switch (host->revmap_type) {
+	case IRQ_HOST_MAP_LINEAR:
+		if (hwirq < host->revmap_data.linear.size)
+			host->revmap_data.linear.revmap[hwirq] = NO_IRQ;
+		break;
+	case IRQ_HOST_MAP_TREE:
+		mutex_lock(&revmap_trees_mutex);
+		radix_tree_delete(&host->revmap_data.tree, hwirq);
+		mutex_unlock(&revmap_trees_mutex);
+		break;
+	}
+
+	/* Destroy map */
+	smp_mb();
+	irq_map[virq].hwirq = host->inval_irq;
+
+	irq_free_descs(virq, 1);
+	/* Free it */
+	irq_free_virt(virq, 1);
+}
+EXPORT_SYMBOL_GPL(irq_dispose_mapping);
+
+unsigned int irq_find_mapping(struct irq_host *host,
+			      irq_hw_number_t hwirq)
+{
+	unsigned int i;
+	unsigned int hint = hwirq % irq_virq_count;
+
+	/* Look for default host if nececssary */
+	if (host == NULL)
+		host = irq_default_host;
+	if (host == NULL)
+		return NO_IRQ;
+
+	/* Slow path does a linear search of the map */
+	i = hint;
+	do  {
+		if (irq_map[i].host == host &&
+		    irq_map[i].hwirq == hwirq)
+			return i;
+		i++;
+		if (i >= irq_virq_count)
+			i = 4;
+	} while (i != hint);
+	return NO_IRQ;
+}
+EXPORT_SYMBOL_GPL(irq_find_mapping);
+
+unsigned int irq_radix_revmap_lookup(struct irq_host *host,
+				     irq_hw_number_t hwirq)
+{
+	struct irq_map_entry *ptr;
+	unsigned int virq;
+
+	if (WARN_ON_ONCE(host->revmap_type != IRQ_HOST_MAP_TREE))
+		return irq_find_mapping(host, hwirq);
+
+	/*
+	 * The ptr returned references the static global irq_map.
+	 * but freeing an irq can delete nodes along the path to
+	 * do the lookup via call_rcu.
+	 */
+	rcu_read_lock();
+	ptr = radix_tree_lookup(&host->revmap_data.tree, hwirq);
+	rcu_read_unlock();
+
+	/*
+	 * If found in radix tree, then fine.
+	 * Else fallback to linear lookup - this should not happen in practice
+	 * as it means that we failed to insert the node in the radix tree.
+	 */
+	if (ptr)
+		virq = ptr - irq_map;
+	else
+		virq = irq_find_mapping(host, hwirq);
+
+	return virq;
+}
+
+void irq_radix_revmap_insert(struct irq_host *host, unsigned int virq,
+			     irq_hw_number_t hwirq)
+{
+	if (WARN_ON(host->revmap_type != IRQ_HOST_MAP_TREE))
+		return;
+
+	if (virq != NO_IRQ) {
+		mutex_lock(&revmap_trees_mutex);
+		radix_tree_insert(&host->revmap_data.tree, hwirq,
+				  &irq_map[virq]);
+		mutex_unlock(&revmap_trees_mutex);
+	}
+}
+
+unsigned int irq_linear_revmap(struct irq_host *host,
+			       irq_hw_number_t hwirq)
+{
+	unsigned int *revmap;
+
+	if (WARN_ON_ONCE(host->revmap_type != IRQ_HOST_MAP_LINEAR))
+		return irq_find_mapping(host, hwirq);
+
+	/* Check revmap bounds */
+	if (unlikely(hwirq >= host->revmap_data.linear.size))
+		return irq_find_mapping(host, hwirq);
+
+	/* Check if revmap was allocated */
+	revmap = host->revmap_data.linear.revmap;
+	if (unlikely(revmap == NULL))
+		return irq_find_mapping(host, hwirq);
+
+	/* Fill up revmap with slow path if no mapping found */
+	if (unlikely(revmap[hwirq] == NO_IRQ))
+		revmap[hwirq] = irq_find_mapping(host, hwirq);
+
+	return revmap[hwirq];
+}
+
+unsigned int irq_alloc_virt(struct irq_host *host,
+			    unsigned int count,
+			    unsigned int hint)
+{
+	unsigned long flags;
+	unsigned int i, j, found = NO_IRQ;
+
+	if (count == 0 || count > (irq_virq_count - NR_PRIORITY_IRQS))
+		return NO_IRQ;
+
+	raw_spin_lock_irqsave(&irq_big_lock, flags);
+
+	/* Use hint for 1 interrupt if any */
+	if (count == 1 && hint >= NR_PRIORITY_IRQS &&
+	    hint < irq_virq_count && irq_map[hint].host == NULL) {
+		found = hint;
+		goto hint_found;
+	}
+
+	/* Look for count consecutive numbers in the allocatable
+	 * (non-legacy) space
+	 */
+	for (i = NR_PRIORITY_IRQS, j = 0; i < irq_virq_count; i++) {
+		if (irq_map[i].host != NULL)
+			j = 0;
+		else
+			j++;
+
+		if (j == count) {
+			found = i - count + 1;
+			break;
+		}
+	}
+	if (found == NO_IRQ) {
+		raw_spin_unlock_irqrestore(&irq_big_lock, flags);
+		return NO_IRQ;
+	}
+ hint_found:
+	for (i = found; i < (found + count); i++) {
+		irq_map[i].hwirq = host->inval_irq;
+		smp_wmb();
+		irq_map[i].host = host;
+	}
+	raw_spin_unlock_irqrestore(&irq_big_lock, flags);
+	return found;
+}
+
+void irq_free_virt(unsigned int virq, unsigned int count)
+{
+	unsigned long flags;
+	unsigned int i;
+
+	WARN_ON(virq < NR_PRIORITY_IRQS);
+	WARN_ON(count == 0 || (virq + count) > irq_virq_count);
+
+	if (virq < NR_PRIORITY_IRQS) {
+		if (virq + count < NR_PRIORITY_IRQS)
+			return;
+		count  -= NR_PRIORITY_IRQS - virq;
+		virq = NR_PRIORITY_IRQS;
+	}
+
+	if (count > irq_virq_count || virq > irq_virq_count - count) {
+		if (virq > irq_virq_count)
+			return;
+		count = irq_virq_count - virq;
+	}
+
+	raw_spin_lock_irqsave(&irq_big_lock, flags);
+	for (i = virq; i < (virq + count); i++) {
+		struct irq_host *host;
+
+		host = irq_map[i].host;
+		irq_map[i].hwirq = host->inval_irq;
+		smp_wmb();
+		irq_map[i].host = NULL;
+	}
+	raw_spin_unlock_irqrestore(&irq_big_lock, flags);
+}
+
+#ifdef CONFIG_VIRQ_DEBUG
+static int virq_debug_show(struct seq_file *m, void *private)
+{
+	unsigned long flags;
+	struct irq_desc *desc;
+	const char *p;
+	static const char none[] = "none";
+	void *data;
+	int i;
+
+	seq_printf(m, "%-5s  %-7s  %-15s  %-18s  %s\n", "virq", "hwirq",
+		      "chip name", "chip data", "host name");
+
+	for (i = 1; i < nr_irqs; i++) {
+		desc = irq_to_desc(i);
+		if (!desc)
+			continue;
+
+		raw_spin_lock_irqsave(&desc->lock, flags);
+
+		if (desc->action && desc->action->handler) {
+			struct irq_chip *chip;
+
+			seq_printf(m, "%5d  ", i);
+			seq_printf(m, "0x%05lx  ", irq_map[i].hwirq);
+
+			chip = irq_desc_get_chip(desc);
+			if (chip && chip->name)
+				p = chip->name;
+			else
+				p = none;
+			seq_printf(m, "%-15s  ", p);
+
+			data = irq_desc_get_chip_data(desc);
+			seq_printf(m, "0x%16p  ", data);
+
+			if (irq_map[i].host && irq_map[i].host->of_node)
+				p = irq_map[i].host->of_node->full_name;
+			else
+				p = none;
+			seq_printf(m, "%s\n", p);
+		}
+
+		raw_spin_unlock_irqrestore(&desc->lock, flags);
+	}
+
+	return 0;
+}
+
+static int virq_debug_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, virq_debug_show, inode->i_private);
+}
+
+static const struct file_operations virq_debug_fops = {
+	.open = virq_debug_open,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.release = single_release,
+};
+
+static int __init irq_debugfs_init(void)
+{
+	if (debugfs_create_file("virq_mapping", S_IRUGO, powerpc_debugfs_root,
+				 NULL, &virq_debug_fops) == NULL)
+		return -ENOMEM;
+
+	return 0;
+}
+device_initcall(irq_debugfs_init);
+#endif /* CONFIG_VIRQ_DEBUG */
diff --git a/arch/c6x/kernel/module.c b/arch/c6x/kernel/module.c
new file mode 100644
index 000000000000..5fc03f18f56c
--- /dev/null
+++ b/arch/c6x/kernel/module.c
@@ -0,0 +1,123 @@
+/*
+ *  Port on Texas Instruments TMS320C6x architecture
+ *
+ *  Copyright (C) 2005, 2009, 2010, 2011 Texas Instruments Incorporated
+ *  Author: Thomas Charleux (thomas.charleux@jaluna.com)
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ */
+#include <linux/moduleloader.h>
+#include <linux/elf.h>
+#include <linux/vmalloc.h>
+#include <linux/kernel.h>
+
+static inline int fixup_pcr(u32 *ip, Elf32_Addr dest, u32 maskbits, int shift)
+{
+	u32 opcode;
+	long ep = (long)ip & ~31;
+	long delta = ((long)dest - ep) >> 2;
+	long mask = (1 << maskbits) - 1;
+
+	if ((delta >> (maskbits - 1)) == 0 ||
+	    (delta >> (maskbits - 1)) == -1) {
+		opcode = *ip;
+		opcode &= ~(mask << shift);
+		opcode |= ((delta & mask) << shift);
+		*ip = opcode;
+
+		pr_debug("REL PCR_S%d[%p] dest[%p] opcode[%08x]\n",
+			 maskbits, ip, (void *)dest, opcode);
+
+		return 0;
+	}
+	pr_err("PCR_S%d reloc %p -> %p out of range!\n",
+	       maskbits, ip, (void *)dest);
+
+	return -1;
+}
+
+/*
+ * apply a RELA relocation
+ */
+int apply_relocate_add(Elf32_Shdr *sechdrs,
+		       const char *strtab,
+		       unsigned int symindex,
+		       unsigned int relsec,
+		       struct module *me)
+{
+	Elf32_Rela *rel = (void *) sechdrs[relsec].sh_addr;
+	Elf_Sym *sym;
+	u32 *location, opcode;
+	unsigned int i;
+	Elf32_Addr v;
+	Elf_Addr offset = 0;
+
+	pr_debug("Applying relocate section %u to %u with offset 0x%x\n",
+		 relsec, sechdrs[relsec].sh_info, offset);
+
+	for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
+		/* This is where to make the change */
+		location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr
+			+ rel[i].r_offset - offset;
+
+		/* This is the symbol it is referring to.  Note that all
+		   undefined symbols have been resolved.  */
+		sym = (Elf_Sym *)sechdrs[symindex].sh_addr
+			+ ELF32_R_SYM(rel[i].r_info);
+
+		/* this is the adjustment to be made */
+		v = sym->st_value + rel[i].r_addend;
+
+		switch (ELF32_R_TYPE(rel[i].r_info)) {
+		case R_C6000_ABS32:
+			pr_debug("RELA ABS32: [%p] = 0x%x\n", location, v);
+			*location = v;
+			break;
+		case R_C6000_ABS16:
+			pr_debug("RELA ABS16: [%p] = 0x%x\n", location, v);
+			*(u16 *)location = v;
+			break;
+		case R_C6000_ABS8:
+			pr_debug("RELA ABS8: [%p] = 0x%x\n", location, v);
+			*(u8 *)location = v;
+			break;
+		case R_C6000_ABS_L16:
+			opcode = *location;
+			opcode &= ~0x7fff80;
+			opcode |= ((v & 0xffff) << 7);
+			pr_debug("RELA ABS_L16[%p] v[0x%x] opcode[0x%x]\n",
+				 location, v, opcode);
+			*location = opcode;
+			break;
+		case R_C6000_ABS_H16:
+			opcode = *location;
+			opcode &= ~0x7fff80;
+			opcode |= ((v >> 9) & 0x7fff80);
+			pr_debug("RELA ABS_H16[%p] v[0x%x] opcode[0x%x]\n",
+				 location, v, opcode);
+			*location = opcode;
+			break;
+		case R_C6000_PCR_S21:
+			if (fixup_pcr(location, v, 21, 7))
+				return -ENOEXEC;
+			break;
+		case R_C6000_PCR_S12:
+			if (fixup_pcr(location, v, 12, 16))
+				return -ENOEXEC;
+			break;
+		case R_C6000_PCR_S10:
+			if (fixup_pcr(location, v, 10, 13))
+				return -ENOEXEC;
+			break;
+		default:
+			pr_err("module %s: Unknown RELA relocation: %u\n",
+			       me->name, ELF32_R_TYPE(rel[i].r_info));
+			return -ENOEXEC;
+		}
+	}
+
+	return 0;
+}
diff --git a/arch/c6x/kernel/process.c b/arch/c6x/kernel/process.c
new file mode 100644
index 000000000000..7ca8c41b03cd
--- /dev/null
+++ b/arch/c6x/kernel/process.c
@@ -0,0 +1,265 @@
+/*
+ *  Port on Texas Instruments TMS320C6x architecture
+ *
+ *  Copyright (C) 2004, 2006, 2009, 2010, 2011 Texas Instruments Incorporated
+ *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ */
+#include <linux/module.h>
+#include <linux/unistd.h>
+#include <linux/ptrace.h>
+#include <linux/init_task.h>
+#include <linux/tick.h>
+#include <linux/mqueue.h>
+#include <linux/syscalls.h>
+#include <linux/reboot.h>
+
+#include <asm/syscalls.h>
+
+/* hooks for board specific support */
+void	(*c6x_restart)(void);
+void	(*c6x_halt)(void);
+
+extern asmlinkage void ret_from_fork(void);
+
+static struct signal_struct init_signals = INIT_SIGNALS(init_signals);
+static struct sighand_struct init_sighand = INIT_SIGHAND(init_sighand);
+
+/*
+ * Initial thread structure.
+ */
+union thread_union init_thread_union __init_task_data =	{
+	INIT_THREAD_INFO(init_task)
+};
+
+/*
+ * Initial task structure.
+ */
+struct task_struct init_task = INIT_TASK(init_task);
+EXPORT_SYMBOL(init_task);
+
+/*
+ * power off function, if any
+ */
+void (*pm_power_off)(void);
+EXPORT_SYMBOL(pm_power_off);
+
+static void c6x_idle(void)
+{
+	unsigned long tmp;
+
+	/*
+	 * Put local_irq_enable and idle in same execute packet
+	 * to make them atomic and avoid race to idle with
+	 * interrupts enabled.
+	 */
+	asm volatile ("   mvc .s2 CSR,%0\n"
+		      "   or  .d2 1,%0,%0\n"
+		      "   mvc .s2 %0,CSR\n"
+		      "|| idle\n"
+		      : "=b"(tmp));
+}
+
+/*
+ * The idle loop for C64x
+ */
+void cpu_idle(void)
+{
+	/* endless idle loop with no priority at all */
+	while (1) {
+		tick_nohz_idle_enter();
+		rcu_idle_enter();
+		while (1) {
+			local_irq_disable();
+			if (need_resched()) {
+				local_irq_enable();
+				break;
+			}
+			c6x_idle(); /* enables local irqs */
+		}
+		rcu_idle_exit();
+		tick_nohz_idle_exit();
+
+		preempt_enable_no_resched();
+		schedule();
+		preempt_disable();
+	}
+}
+
+static void halt_loop(void)
+{
+	printk(KERN_EMERG "System Halted, OK to turn off power\n");
+	local_irq_disable();
+	while (1)
+		asm volatile("idle\n");
+}
+
+void machine_restart(char *__unused)
+{
+	if (c6x_restart)
+		c6x_restart();
+	halt_loop();
+}
+
+void machine_halt(void)
+{
+	if (c6x_halt)
+		c6x_halt();
+	halt_loop();
+}
+
+void machine_power_off(void)
+{
+	if (pm_power_off)
+		pm_power_off();
+	halt_loop();
+}
+
+static void kernel_thread_helper(int dummy, void *arg, int (*fn)(void *))
+{
+	do_exit(fn(arg));
+}
+
+/*
+ * Create a kernel thread
+ */
+int kernel_thread(int (*fn)(void *), void * arg, unsigned long flags)
+{
+	struct pt_regs regs;
+
+	/*
+	 * copy_thread sets a4 to zero (child return from fork)
+	 * so we can't just set things up to directly return to
+	 * fn.
+	 */
+	memset(&regs, 0, sizeof(regs));
+	regs.b4 = (unsigned long) arg;
+	regs.a6 = (unsigned long) fn;
+	regs.pc = (unsigned long) kernel_thread_helper;
+	local_save_flags(regs.csr);
+	regs.csr |= 1;
+	regs.tsr = 5; /* Set GEE and GIE in TSR */
+
+	/* Ok, create the new process.. */
+	return do_fork(flags | CLONE_VM | CLONE_UNTRACED, -1, &regs,
+		       0, NULL, NULL);
+}
+EXPORT_SYMBOL(kernel_thread);
+
+void flush_thread(void)
+{
+}
+
+void exit_thread(void)
+{
+}
+
+SYSCALL_DEFINE1(c6x_clone, struct pt_regs *, regs)
+{
+	unsigned long clone_flags;
+	unsigned long newsp;
+
+	/* syscall puts clone_flags in A4 and usp in B4 */
+	clone_flags = regs->orig_a4;
+	if (regs->b4)
+		newsp = regs->b4;
+	else
+		newsp = regs->sp;
+
+	return do_fork(clone_flags, newsp, regs, 0, (int __user *)regs->a6,
+		       (int __user *)regs->b6);
+}
+
+/*
+ * Do necessary setup to start up a newly executed thread.
+ */
+void start_thread(struct pt_regs *regs, unsigned int pc, unsigned long usp)
+{
+	/*
+	 * The binfmt loader will setup a "full" stack, but the C6X
+	 * operates an "empty" stack. So we adjust the usp so that
+	 * argc doesn't get destroyed if an interrupt is taken before
+	 * it is read from the stack.
+	 *
+	 * NB: Library startup code needs to match this.
+	 */
+	usp -= 8;
+
+	set_fs(USER_DS);
+	regs->pc  = pc;
+	regs->sp  = usp;
+	regs->tsr |= 0x40; /* set user mode */
+	current->thread.usp = usp;
+}
+
+/*
+ * Copy a new thread context in its stack.
+ */
+int copy_thread(unsigned long clone_flags, unsigned long usp,
+		unsigned long ustk_size,
+		struct task_struct *p, struct pt_regs *regs)
+{
+	struct pt_regs *childregs;
+
+	childregs = task_pt_regs(p);
+
+	*childregs = *regs;
+	childregs->a4 = 0;
+
+	if (usp == -1)
+		/* case of  __kernel_thread: we return to supervisor space */
+		childregs->sp = (unsigned long)(childregs + 1);
+	else
+		/* Otherwise use the given stack */
+		childregs->sp = usp;
+
+	/* Set usp/ksp */
+	p->thread.usp = childregs->sp;
+	/* switch_to uses stack to save/restore 14 callee-saved regs */
+	thread_saved_ksp(p) = (unsigned long)childregs - 8;
+	p->thread.pc = (unsigned int) ret_from_fork;
+	p->thread.wchan	= (unsigned long) ret_from_fork;
+#ifdef __DSBT__
+	{
+		unsigned long dp;
+
+		asm volatile ("mv .S2 b14,%0\n" : "=b"(dp));
+
+		thread_saved_dp(p) = dp;
+		if (usp == -1)
+			childregs->dp = dp;
+	}
+#endif
+	return 0;
+}
+
+/*
+ * c6x_execve() executes a new program.
+ */
+SYSCALL_DEFINE4(c6x_execve, const char __user *, name,
+		const char __user *const __user *, argv,
+		const char __user *const __user *, envp,
+		struct pt_regs *, regs)
+{
+	int error;
+	char *filename;
+
+	filename = getname(name);
+	error = PTR_ERR(filename);
+	if (IS_ERR(filename))
+		goto out;
+
+	error = do_execve(filename, argv, envp, regs);
+	putname(filename);
+out:
+	return error;
+}
+
+unsigned long get_wchan(struct task_struct *p)
+{
+	return p->thread.wchan;
+}
diff --git a/arch/c6x/kernel/ptrace.c b/arch/c6x/kernel/ptrace.c
new file mode 100644
index 000000000000..3c494e84444d
--- /dev/null
+++ b/arch/c6x/kernel/ptrace.c
@@ -0,0 +1,187 @@
+/*
+ *  Port on Texas Instruments TMS320C6x architecture
+ *
+ *  Copyright (C) 2004, 2006, 2009, 2010, 2011 Texas Instruments Incorporated
+ *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+ *
+ *  Updated for 2.6.34: Mark Salter <msalter@redhat.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+#include <linux/ptrace.h>
+#include <linux/tracehook.h>
+#include <linux/regset.h>
+#include <linux/elf.h>
+
+#include <asm/cacheflush.h>
+
+#define PT_REG_SIZE	  (sizeof(struct pt_regs))
+
+/*
+ * Called by kernel/ptrace.c when detaching.
+ */
+void ptrace_disable(struct task_struct *child)
+{
+	/* nothing to do */
+}
+
+/*
+ * Get a register number from live pt_regs for the specified task.
+ */
+static inline long get_reg(struct task_struct *task, int regno)
+{
+	long *addr = (long *)task_pt_regs(task);
+
+	if (regno == PT_TSR || regno == PT_CSR)
+		return 0;
+
+	return addr[regno];
+}
+
+/*
+ * Write contents of register REGNO in task TASK.
+ */
+static inline int put_reg(struct task_struct *task,
+			  int regno,
+			  unsigned long data)
+{
+	unsigned long *addr = (unsigned long *)task_pt_regs(task);
+
+	if (regno != PT_TSR && regno != PT_CSR)
+		addr[regno] = data;
+
+	return 0;
+}
+
+/* regset get/set implementations */
+
+static int gpr_get(struct task_struct *target,
+		   const struct user_regset *regset,
+		   unsigned int pos, unsigned int count,
+		   void *kbuf, void __user *ubuf)
+{
+	struct pt_regs *regs = task_pt_regs(target);
+
+	return user_regset_copyout(&pos, &count, &kbuf, &ubuf,
+				   regs,
+				   0, sizeof(*regs));
+}
+
+static int gpr_set(struct task_struct *target,
+		   const struct user_regset *regset,
+		   unsigned int pos, unsigned int count,
+		   const void *kbuf, const void __user *ubuf)
+{
+	int ret;
+	struct pt_regs *regs = task_pt_regs(target);
+
+	/* Don't copyin TSR or CSR */
+	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+				 &regs,
+				 0, PT_TSR * sizeof(long));
+	if (ret)
+		return ret;
+
+	ret = user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
+					PT_TSR * sizeof(long),
+					(PT_TSR + 1) * sizeof(long));
+	if (ret)
+		return ret;
+
+	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+				 &regs,
+				 (PT_TSR + 1) * sizeof(long),
+				 PT_CSR * sizeof(long));
+	if (ret)
+		return ret;
+
+	ret = user_regset_copyin_ignore(&pos, &count, &kbuf, &ubuf,
+					PT_CSR * sizeof(long),
+					(PT_CSR + 1) * sizeof(long));
+	if (ret)
+		return ret;
+
+	ret = user_regset_copyin(&pos, &count, &kbuf, &ubuf,
+				 &regs,
+				 (PT_CSR + 1) * sizeof(long), -1);
+	return ret;
+}
+
+enum c6x_regset {
+	REGSET_GPR,
+};
+
+static const struct user_regset c6x_regsets[] = {
+	[REGSET_GPR] = {
+		.core_note_type = NT_PRSTATUS,
+		.n = ELF_NGREG,
+		.size = sizeof(u32),
+		.align = sizeof(u32),
+		.get = gpr_get,
+		.set = gpr_set
+	},
+};
+
+static const struct user_regset_view user_c6x_native_view = {
+	.name		= "tic6x",
+	.e_machine	= EM_TI_C6000,
+	.regsets	= c6x_regsets,
+	.n		= ARRAY_SIZE(c6x_regsets),
+};
+
+const struct user_regset_view *task_user_regset_view(struct task_struct *task)
+{
+	return &user_c6x_native_view;
+}
+
+/*
+ * Perform ptrace request
+ */
+long arch_ptrace(struct task_struct *child, long request,
+		 unsigned long addr, unsigned long data)
+{
+	int ret = 0;
+
+	switch (request) {
+		/*
+		 * write the word at location addr.
+		 */
+	case PTRACE_POKETEXT:
+		ret = generic_ptrace_pokedata(child, addr, data);
+		if (ret == 0 && request == PTRACE_POKETEXT)
+			flush_icache_range(addr, addr + 4);
+		break;
+	default:
+		ret = ptrace_request(child, request, addr, data);
+		break;
+	}
+
+	return ret;
+}
+
+/*
+ * handle tracing of system call entry
+ * - return the revised system call number or ULONG_MAX to cause ENOSYS
+ */
+asmlinkage unsigned long syscall_trace_entry(struct pt_regs *regs)
+{
+	if (tracehook_report_syscall_entry(regs))
+		/* tracing decided this syscall should not happen, so
+		 * We'll return a bogus call number to get an ENOSYS
+		 * error, but leave the original number in
+		 * regs->orig_a4
+		 */
+		return ULONG_MAX;
+
+	return regs->b0;
+}
+
+/*
+ * handle tracing of system call exit
+ */
+asmlinkage void syscall_trace_exit(struct pt_regs *regs)
+{
+	tracehook_report_syscall_exit(regs, 0);
+}
diff --git a/arch/c6x/kernel/setup.c b/arch/c6x/kernel/setup.c
new file mode 100644
index 000000000000..0c07921747f4
--- /dev/null
+++ b/arch/c6x/kernel/setup.c
@@ -0,0 +1,510 @@
+/*
+ *  Port on Texas Instruments TMS320C6x architecture
+ *
+ *  Copyright (C) 2004, 2006, 2009, 2010, 2011 Texas Instruments Incorporated
+ *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+#include <linux/dma-mapping.h>
+#include <linux/memblock.h>
+#include <linux/seq_file.h>
+#include <linux/bootmem.h>
+#include <linux/clkdev.h>
+#include <linux/initrd.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/of_fdt.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/cache.h>
+#include <linux/delay.h>
+#include <linux/sched.h>
+#include <linux/clk.h>
+#include <linux/cpu.h>
+#include <linux/fs.h>
+#include <linux/of.h>
+
+
+#include <asm/sections.h>
+#include <asm/div64.h>
+#include <asm/setup.h>
+#include <asm/dscr.h>
+#include <asm/clock.h>
+#include <asm/soc.h>
+
+static const char *c6x_soc_name;
+
+int c6x_num_cores;
+EXPORT_SYMBOL_GPL(c6x_num_cores);
+
+unsigned int c6x_silicon_rev;
+EXPORT_SYMBOL_GPL(c6x_silicon_rev);
+
+/*
+ * Device status register. This holds information
+ * about device configuration needed by some drivers.
+ */
+unsigned int c6x_devstat;
+EXPORT_SYMBOL_GPL(c6x_devstat);
+
+/*
+ * Some SoCs have fuse registers holding a unique MAC
+ * address. This is parsed out of the device tree with
+ * the resulting MAC being held here.
+ */
+unsigned char c6x_fuse_mac[6];
+
+unsigned long memory_start;
+unsigned long memory_end;
+
+unsigned long ram_start;
+unsigned long ram_end;
+
+/* Uncached memory for DMA consistent use (memdma=) */
+static unsigned long dma_start __initdata;
+static unsigned long dma_size __initdata;
+
+char c6x_command_line[COMMAND_LINE_SIZE];
+
+#if defined(CONFIG_CMDLINE_BOOL)
+static const char default_command_line[COMMAND_LINE_SIZE] __section(.cmdline) =
+	CONFIG_CMDLINE;
+#endif
+
+struct cpuinfo_c6x {
+	const char *cpu_name;
+	const char *cpu_voltage;
+	const char *mmu;
+	const char *fpu;
+	char *cpu_rev;
+	unsigned int core_id;
+	char __cpu_rev[5];
+};
+
+static DEFINE_PER_CPU(struct cpuinfo_c6x, cpu_data);
+
+unsigned int ticks_per_ns_scaled;
+EXPORT_SYMBOL(ticks_per_ns_scaled);
+
+unsigned int c6x_core_freq;
+
+static void __init get_cpuinfo(void)
+{
+	unsigned cpu_id, rev_id, csr;
+	struct clk *coreclk = clk_get_sys(NULL, "core");
+	unsigned long core_khz;
+	u64 tmp;
+	struct cpuinfo_c6x *p;
+	struct device_node *node, *np;
+
+	p = &per_cpu(cpu_data, smp_processor_id());
+
+	if (!IS_ERR(coreclk))
+		c6x_core_freq = clk_get_rate(coreclk);
+	else {
+		printk(KERN_WARNING
+		       "Cannot find core clock frequency. Using 700MHz\n");
+		c6x_core_freq = 700000000;
+	}
+
+	core_khz = c6x_core_freq / 1000;
+
+	tmp = (uint64_t)core_khz << C6X_NDELAY_SCALE;
+	do_div(tmp, 1000000);
+	ticks_per_ns_scaled = tmp;
+
+	csr = get_creg(CSR);
+	cpu_id = csr >> 24;
+	rev_id = (csr >> 16) & 0xff;
+
+	p->mmu = "none";
+	p->fpu = "none";
+	p->cpu_voltage = "unknown";
+
+	switch (cpu_id) {
+	case 0:
+		p->cpu_name = "C67x";
+		p->fpu = "yes";
+		break;
+	case 2:
+		p->cpu_name = "C62x";
+		break;
+	case 8:
+		p->cpu_name = "C64x";
+		break;
+	case 12:
+		p->cpu_name = "C64x";
+		break;
+	case 16:
+		p->cpu_name = "C64x+";
+		p->cpu_voltage = "1.2";
+		break;
+	default:
+		p->cpu_name = "unknown";
+		break;
+	}
+
+	if (cpu_id < 16) {
+		switch (rev_id) {
+		case 0x1:
+			if (cpu_id > 8) {
+				p->cpu_rev = "DM640/DM641/DM642/DM643";
+				p->cpu_voltage = "1.2 - 1.4";
+			} else {
+				p->cpu_rev = "C6201";
+				p->cpu_voltage = "2.5";
+			}
+			break;
+		case 0x2:
+			p->cpu_rev = "C6201B/C6202/C6211";
+			p->cpu_voltage = "1.8";
+			break;
+		case 0x3:
+			p->cpu_rev = "C6202B/C6203/C6204/C6205";
+			p->cpu_voltage = "1.5";
+			break;
+		case 0x201:
+			p->cpu_rev = "C6701 revision 0 (early CPU)";
+			p->cpu_voltage = "1.8";
+			break;
+		case 0x202:
+			p->cpu_rev = "C6701/C6711/C6712";
+			p->cpu_voltage = "1.8";
+			break;
+		case 0x801:
+			p->cpu_rev = "C64x";
+			p->cpu_voltage = "1.5";
+			break;
+		default:
+			p->cpu_rev = "unknown";
+		}
+	} else {
+		p->cpu_rev = p->__cpu_rev;
+		snprintf(p->__cpu_rev, sizeof(p->__cpu_rev), "0x%x", cpu_id);
+	}
+
+	p->core_id = get_coreid();
+
+	node = of_find_node_by_name(NULL, "cpus");
+	if (node) {
+		for_each_child_of_node(node, np)
+			if (!strcmp("cpu", np->name))
+				++c6x_num_cores;
+		of_node_put(node);
+	}
+
+	node = of_find_node_by_name(NULL, "soc");
+	if (node) {
+		if (of_property_read_string(node, "model", &c6x_soc_name))
+			c6x_soc_name = "unknown";
+		of_node_put(node);
+	} else
+		c6x_soc_name = "unknown";
+
+	printk(KERN_INFO "CPU%d: %s rev %s, %s volts, %uMHz\n",
+	       p->core_id, p->cpu_name, p->cpu_rev,
+	       p->cpu_voltage, c6x_core_freq / 1000000);
+}
+
+/*
+ * Early parsing of the command line
+ */
+static u32 mem_size __initdata;
+
+/* "mem=" parsing. */
+static int __init early_mem(char *p)
+{
+	if (!p)
+		return -EINVAL;
+
+	mem_size = memparse(p, &p);
+	/* don't remove all of memory when handling "mem={invalid}" */
+	if (mem_size == 0)
+		return -EINVAL;
+
+	return 0;
+}
+early_param("mem", early_mem);
+
+/* "memdma=<size>[@<address>]" parsing. */
+static int __init early_memdma(char *p)
+{
+	if (!p)
+		return -EINVAL;
+
+	dma_size = memparse(p, &p);
+	if (*p == '@')
+		dma_start = memparse(p, &p);
+
+	return 0;
+}
+early_param("memdma", early_memdma);
+
+int __init c6x_add_memory(phys_addr_t start, unsigned long size)
+{
+	static int ram_found __initdata;
+
+	/* We only handle one bank (the one with PAGE_OFFSET) for now */
+	if (ram_found)
+		return -EINVAL;
+
+	if (start > PAGE_OFFSET || PAGE_OFFSET >= (start + size))
+		return 0;
+
+	ram_start = start;
+	ram_end = start + size;
+
+	ram_found = 1;
+	return 0;
+}
+
+/*
+ * Do early machine setup and device tree parsing. This is called very
+ * early on the boot process.
+ */
+notrace void __init machine_init(unsigned long dt_ptr)
+{
+	struct boot_param_header *dtb = __va(dt_ptr);
+	struct boot_param_header *fdt = (struct boot_param_header *)_fdt_start;
+
+	/* interrupts must be masked */
+	set_creg(IER, 2);
+
+	/*
+	 * Set the Interrupt Service Table (IST) to the beginning of the
+	 * vector table.
+	 */
+	set_ist(_vectors_start);
+
+	lockdep_init();
+
+	/*
+	 * dtb is passed in from bootloader.
+	 * fdt is linked in blob.
+	 */
+	if (dtb && dtb != fdt)
+		fdt = dtb;
+
+	/* Do some early initialization based on the flat device tree */
+	early_init_devtree(fdt);
+
+	/* parse_early_param needs a boot_command_line */
+	strlcpy(boot_command_line, c6x_command_line, COMMAND_LINE_SIZE);
+	parse_early_param();
+}
+
+void __init setup_arch(char **cmdline_p)
+{
+	int bootmap_size;
+	struct memblock_region *reg;
+
+	printk(KERN_INFO "Initializing kernel\n");
+
+	/* Initialize command line */
+	*cmdline_p = c6x_command_line;
+
+	memory_end = ram_end;
+	memory_end &= ~(PAGE_SIZE - 1);
+
+	if (mem_size && (PAGE_OFFSET + PAGE_ALIGN(mem_size)) < memory_end)
+		memory_end = PAGE_OFFSET + PAGE_ALIGN(mem_size);
+
+	/* add block that this kernel can use */
+	memblock_add(PAGE_OFFSET, memory_end - PAGE_OFFSET);
+
+	/* reserve kernel text/data/bss */
+	memblock_reserve(PAGE_OFFSET,
+			 PAGE_ALIGN((unsigned long)&_end - PAGE_OFFSET));
+
+	if (dma_size) {
+		/* align to cacheability granularity */
+		dma_size = CACHE_REGION_END(dma_size);
+
+		if (!dma_start)
+			dma_start = memory_end - dma_size;
+
+		/* align to cacheability granularity */
+		dma_start = CACHE_REGION_START(dma_start);
+
+		/* reserve DMA memory taken from kernel memory */
+		if (memblock_is_region_memory(dma_start, dma_size))
+			memblock_reserve(dma_start, dma_size);
+	}
+
+	memory_start = PAGE_ALIGN((unsigned int) &_end);
+
+	printk(KERN_INFO "Memory Start=%08lx, Memory End=%08lx\n",
+	       memory_start, memory_end);
+
+#ifdef CONFIG_BLK_DEV_INITRD
+	/*
+	 * Reserve initrd memory if in kernel memory.
+	 */
+	if (initrd_start < initrd_end)
+		if (memblock_is_region_memory(initrd_start,
+					      initrd_end - initrd_start))
+			memblock_reserve(initrd_start,
+					 initrd_end - initrd_start);
+#endif
+
+	init_mm.start_code = (unsigned long) &_stext;
+	init_mm.end_code   = (unsigned long) &_etext;
+	init_mm.end_data   = memory_start;
+	init_mm.brk        = memory_start;
+
+	/*
+	 * Give all the memory to the bootmap allocator,  tell it to put the
+	 * boot mem_map at the start of memory
+	 */
+	bootmap_size = init_bootmem_node(NODE_DATA(0),
+					 memory_start >> PAGE_SHIFT,
+					 PAGE_OFFSET >> PAGE_SHIFT,
+					 memory_end >> PAGE_SHIFT);
+	memblock_reserve(memory_start, bootmap_size);
+
+	unflatten_device_tree();
+
+	c6x_cache_init();
+
+	/* Set the whole external memory as non-cacheable */
+	disable_caching(ram_start, ram_end - 1);
+
+	/* Set caching of external RAM used by Linux */
+	for_each_memblock(memory, reg)
+		enable_caching(CACHE_REGION_START(reg->base),
+			       CACHE_REGION_START(reg->base + reg->size - 1));
+
+#ifdef CONFIG_BLK_DEV_INITRD
+	/*
+	 * Enable caching for initrd which falls outside kernel memory.
+	 */
+	if (initrd_start < initrd_end) {
+		if (!memblock_is_region_memory(initrd_start,
+					       initrd_end - initrd_start))
+			enable_caching(CACHE_REGION_START(initrd_start),
+				       CACHE_REGION_START(initrd_end - 1));
+	}
+#endif
+
+	/*
+	 * Disable caching for dma coherent memory taken from kernel memory.
+	 */
+	if (dma_size && memblock_is_region_memory(dma_start, dma_size))
+		disable_caching(dma_start,
+				CACHE_REGION_START(dma_start + dma_size - 1));
+
+	/* Initialize the coherent memory allocator */
+	coherent_mem_init(dma_start, dma_size);
+
+	/*
+	 * Free all memory as a starting point.
+	 */
+	free_bootmem(PAGE_OFFSET, memory_end - PAGE_OFFSET);
+
+	/*
+	 * Then reserve memory which is already being used.
+	 */
+	for_each_memblock(reserved, reg) {
+		pr_debug("reserved - 0x%08x-0x%08x\n",
+			 (u32) reg->base, (u32) reg->size);
+		reserve_bootmem(reg->base, reg->size, BOOTMEM_DEFAULT);
+	}
+
+	max_low_pfn = PFN_DOWN(memory_end);
+	min_low_pfn = PFN_UP(memory_start);
+	max_mapnr = max_low_pfn - min_low_pfn;
+
+	/* Get kmalloc into gear */
+	paging_init();
+
+	/*
+	 * Probe for Device State Configuration Registers.
+	 * We have to do this early in case timer needs to be enabled
+	 * through DSCR.
+	 */
+	dscr_probe();
+
+	/* We do this early for timer and core clock frequency */
+	c64x_setup_clocks();
+
+	/* Get CPU info */
+	get_cpuinfo();
+
+#if defined(CONFIG_VT) && defined(CONFIG_DUMMY_CONSOLE)
+	conswitchp = &dummy_con;
+#endif
+}
+
+#define cpu_to_ptr(n) ((void *)((long)(n)+1))
+#define ptr_to_cpu(p) ((long)(p) - 1)
+
+static int show_cpuinfo(struct seq_file *m, void *v)
+{
+	int n = ptr_to_cpu(v);
+	struct cpuinfo_c6x *p = &per_cpu(cpu_data, n);
+
+	if (n == 0) {
+		seq_printf(m,
+			   "soc\t\t: %s\n"
+			   "soc revision\t: 0x%x\n"
+			   "soc cores\t: %d\n",
+			   c6x_soc_name, c6x_silicon_rev, c6x_num_cores);
+	}
+
+	seq_printf(m,
+		   "\n"
+		   "processor\t: %d\n"
+		   "cpu\t\t: %s\n"
+		   "core revision\t: %s\n"
+		   "core voltage\t: %s\n"
+		   "core id\t\t: %d\n"
+		   "mmu\t\t: %s\n"
+		   "fpu\t\t: %s\n"
+		   "cpu MHz\t\t: %u\n"
+		   "bogomips\t: %lu.%02lu\n\n",
+		   n,
+		   p->cpu_name, p->cpu_rev, p->cpu_voltage,
+		   p->core_id, p->mmu, p->fpu,
+		   (c6x_core_freq + 500000) / 1000000,
+		   (loops_per_jiffy/(500000/HZ)),
+		   (loops_per_jiffy/(5000/HZ))%100);
+
+	return 0;
+}
+
+static void *c_start(struct seq_file *m, loff_t *pos)
+{
+	return *pos < nr_cpu_ids ? cpu_to_ptr(*pos) : NULL;
+}
+static void *c_next(struct seq_file *m, void *v, loff_t *pos)
+{
+	++*pos;
+	return NULL;
+}
+static void c_stop(struct seq_file *m, void *v)
+{
+}
+
+const struct seq_operations cpuinfo_op = {
+	c_start,
+	c_stop,
+	c_next,
+	show_cpuinfo
+};
+
+static struct cpu cpu_devices[NR_CPUS];
+
+static int __init topology_init(void)
+{
+	int i;
+
+	for_each_present_cpu(i)
+		register_cpu(&cpu_devices[i], i);
+
+	return 0;
+}
+
+subsys_initcall(topology_init);
diff --git a/arch/c6x/kernel/signal.c b/arch/c6x/kernel/signal.c
new file mode 100644
index 000000000000..304f675826e9
--- /dev/null
+++ b/arch/c6x/kernel/signal.c
@@ -0,0 +1,377 @@
+/*
+ *  Port on Texas Instruments TMS320C6x architecture
+ *
+ *  Copyright (C) 2004, 2006, 2009, 2010, 2011 Texas Instruments Incorporated
+ *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+ *
+ *  Updated for 2.6.34: Mark Salter <msalter@redhat.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/uaccess.h>
+#include <linux/syscalls.h>
+#include <linux/tracehook.h>
+
+#include <asm/ucontext.h>
+#include <asm/cacheflush.h>
+
+
+#define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP)))
+
+/*
+ * Do a signal return, undo the signal stack.
+ */
+
+#define RETCODE_SIZE (9 << 2)	/* 9 instructions = 36 bytes */
+
+struct rt_sigframe {
+	struct siginfo __user *pinfo;
+	void __user *puc;
+	struct siginfo info;
+	struct ucontext uc;
+	unsigned long retcode[RETCODE_SIZE >> 2];
+};
+
+static int restore_sigcontext(struct pt_regs *regs,
+			      struct sigcontext __user *sc)
+{
+	int err = 0;
+
+	/* The access_ok check was done by caller, so use __get_user here */
+#define COPY(x)  (err |= __get_user(regs->x, &sc->sc_##x))
+
+	COPY(sp); COPY(a4); COPY(b4); COPY(a6); COPY(b6); COPY(a8); COPY(b8);
+	COPY(a0); COPY(a1); COPY(a2); COPY(a3); COPY(a5); COPY(a7); COPY(a9);
+	COPY(b0); COPY(b1); COPY(b2); COPY(b3); COPY(b5); COPY(b7); COPY(b9);
+
+	COPY(a16); COPY(a17); COPY(a18); COPY(a19);
+	COPY(a20); COPY(a21); COPY(a22); COPY(a23);
+	COPY(a24); COPY(a25); COPY(a26); COPY(a27);
+	COPY(a28); COPY(a29); COPY(a30); COPY(a31);
+	COPY(b16); COPY(b17); COPY(b18); COPY(b19);
+	COPY(b20); COPY(b21); COPY(b22); COPY(b23);
+	COPY(b24); COPY(b25); COPY(b26); COPY(b27);
+	COPY(b28); COPY(b29); COPY(b30); COPY(b31);
+
+	COPY(csr); COPY(pc);
+
+#undef COPY
+
+	return err;
+}
+
+asmlinkage int do_rt_sigreturn(struct pt_regs *regs)
+{
+	struct rt_sigframe __user *frame;
+	sigset_t set;
+
+	/*
+	 * Since we stacked the signal on a dword boundary,
+	 * 'sp' should be dword aligned here.  If it's
+	 * not, then the user is trying to mess with us.
+	 */
+	if (regs->sp & 7)
+		goto badframe;
+
+	frame = (struct rt_sigframe __user *) ((unsigned long) regs->sp + 8);
+
+	if (!access_ok(VERIFY_READ, frame, sizeof(*frame)))
+		goto badframe;
+	if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
+		goto badframe;
+
+	sigdelsetmask(&set, ~_BLOCKABLE);
+	spin_lock_irq(&current->sighand->siglock);
+	current->blocked = set;
+	recalc_sigpending();
+	spin_unlock_irq(&current->sighand->siglock);
+
+	if (restore_sigcontext(regs, &frame->uc.uc_mcontext))
+		goto badframe;
+
+	return regs->a4;
+
+badframe:
+	force_sig(SIGSEGV, current);
+	return 0;
+}
+
+static int setup_sigcontext(struct sigcontext __user *sc, struct pt_regs *regs,
+			    unsigned long mask)
+{
+	int err = 0;
+
+	err |= __put_user(mask, &sc->sc_mask);
+
+	/* The access_ok check was done by caller, so use __put_user here */
+#define COPY(x) (err |= __put_user(regs->x, &sc->sc_##x))
+
+	COPY(sp); COPY(a4); COPY(b4); COPY(a6); COPY(b6); COPY(a8); COPY(b8);
+	COPY(a0); COPY(a1); COPY(a2); COPY(a3); COPY(a5); COPY(a7); COPY(a9);
+	COPY(b0); COPY(b1); COPY(b2); COPY(b3); COPY(b5); COPY(b7); COPY(b9);
+
+	COPY(a16); COPY(a17); COPY(a18); COPY(a19);
+	COPY(a20); COPY(a21); COPY(a22); COPY(a23);
+	COPY(a24); COPY(a25); COPY(a26); COPY(a27);
+	COPY(a28); COPY(a29); COPY(a30); COPY(a31);
+	COPY(b16); COPY(b17); COPY(b18); COPY(b19);
+	COPY(b20); COPY(b21); COPY(b22); COPY(b23);
+	COPY(b24); COPY(b25); COPY(b26); COPY(b27);
+	COPY(b28); COPY(b29); COPY(b30); COPY(b31);
+
+	COPY(csr); COPY(pc);
+
+#undef COPY
+
+	return err;
+}
+
+static inline void __user *get_sigframe(struct k_sigaction *ka,
+					struct pt_regs *regs,
+					unsigned long framesize)
+{
+	unsigned long sp = regs->sp;
+
+	/*
+	 * This is the X/Open sanctioned signal stack switching.
+	 */
+	if ((ka->sa.sa_flags & SA_ONSTACK) && sas_ss_flags(sp) == 0)
+		sp = current->sas_ss_sp + current->sas_ss_size;
+
+	/*
+	 * No matter what happens, 'sp' must be dword
+	 * aligned. Otherwise, nasty things will happen
+	 */
+	return (void __user *)((sp - framesize) & ~7);
+}
+
+static int setup_rt_frame(int signr, struct k_sigaction *ka, siginfo_t *info,
+			   sigset_t *set, struct pt_regs *regs)
+{
+	struct rt_sigframe __user *frame;
+	unsigned long __user *retcode;
+	int err = 0;
+
+	frame = get_sigframe(ka, regs, sizeof(*frame));
+
+	if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
+		goto segv_and_exit;
+
+	err |= __put_user(&frame->info, &frame->pinfo);
+	err |= __put_user(&frame->uc, &frame->puc);
+	err |= copy_siginfo_to_user(&frame->info, info);
+
+	/* Clear all the bits of the ucontext we don't use.  */
+	err |= __clear_user(&frame->uc, offsetof(struct ucontext, uc_mcontext));
+
+	err |= setup_sigcontext(&frame->uc.uc_mcontext,	regs, set->sig[0]);
+	err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set));
+
+	/* Set up to return from userspace */
+	retcode = (unsigned long __user *) &frame->retcode;
+
+	/* The access_ok check was done above, so use __put_user here */
+#define COPY(x) (err |= __put_user(x, retcode++))
+
+	COPY(0x0000002AUL | (__NR_rt_sigreturn << 7));
+				/* MVK __NR_rt_sigreturn,B0 */
+	COPY(0x10000000UL);	/* SWE */
+	COPY(0x00006000UL);	/* NOP 4 */
+	COPY(0x00006000UL);	/* NOP 4 */
+	COPY(0x00006000UL);	/* NOP 4 */
+	COPY(0x00006000UL);	/* NOP 4 */
+	COPY(0x00006000UL);	/* NOP 4 */
+	COPY(0x00006000UL);	/* NOP 4 */
+	COPY(0x00006000UL);	/* NOP 4 */
+
+#undef COPY
+
+	if (err)
+		goto segv_and_exit;
+
+	flush_icache_range((unsigned long) &frame->retcode,
+			   (unsigned long) &frame->retcode + RETCODE_SIZE);
+
+	retcode = (unsigned long __user *) &frame->retcode;
+
+	/* Change user context to branch to signal handler */
+	regs->sp = (unsigned long) frame - 8;
+	regs->b3 = (unsigned long) retcode;
+	regs->pc = (unsigned long) ka->sa.sa_handler;
+
+	/* Give the signal number to the handler */
+	regs->a4 = signr;
+
+	/*
+	 * For realtime signals we must also set the second and third
+	 * arguments for the signal handler.
+	 *   -- Peter Maydell <pmaydell@chiark.greenend.org.uk> 2000-12-06
+	 */
+	regs->b4 = (unsigned long)&frame->info;
+	regs->a6 = (unsigned long)&frame->uc;
+
+	return 0;
+
+segv_and_exit:
+	force_sigsegv(signr, current);
+	return -EFAULT;
+}
+
+static inline void
+handle_restart(struct pt_regs *regs, struct k_sigaction *ka, int has_handler)
+{
+	switch (regs->a4) {
+	case -ERESTARTNOHAND:
+		if (!has_handler)
+			goto do_restart;
+		regs->a4 = -EINTR;
+		break;
+
+	case -ERESTARTSYS:
+		if (has_handler && !(ka->sa.sa_flags & SA_RESTART)) {
+			regs->a4 = -EINTR;
+			break;
+		}
+	/* fallthrough */
+	case -ERESTARTNOINTR:
+do_restart:
+		regs->a4 = regs->orig_a4;
+		regs->pc -= 4;
+		break;
+	}
+}
+
+/*
+ * handle the actual delivery of a signal to userspace
+ */
+static int handle_signal(int sig,
+			 siginfo_t *info, struct k_sigaction *ka,
+			 sigset_t *oldset, struct pt_regs *regs,
+			 int syscall)
+{
+	int ret;
+
+	/* Are we from a system call? */
+	if (syscall) {
+		/* If so, check system call restarting.. */
+		switch (regs->a4) {
+		case -ERESTART_RESTARTBLOCK:
+		case -ERESTARTNOHAND:
+			regs->a4 = -EINTR;
+			break;
+
+		case -ERESTARTSYS:
+			if (!(ka->sa.sa_flags & SA_RESTART)) {
+				regs->a4 = -EINTR;
+				break;
+			}
+
+			/* fallthrough */
+		case -ERESTARTNOINTR:
+			regs->a4 = regs->orig_a4;
+			regs->pc -= 4;
+		}
+	}
+
+	/* Set up the stack frame */
+	ret = setup_rt_frame(sig, ka, info, oldset, regs);
+	if (ret == 0) {
+		spin_lock_irq(&current->sighand->siglock);
+		sigorsets(&current->blocked, &current->blocked,
+			  &ka->sa.sa_mask);
+		if (!(ka->sa.sa_flags & SA_NODEFER))
+			sigaddset(&current->blocked, sig);
+		recalc_sigpending();
+		spin_unlock_irq(&current->sighand->siglock);
+	}
+
+	return ret;
+}
+
+/*
+ * handle a potential signal
+ */
+static void do_signal(struct pt_regs *regs, int syscall)
+{
+	struct k_sigaction ka;
+	siginfo_t info;
+	sigset_t *oldset;
+	int signr;
+
+	/* we want the common case to go fast, which is why we may in certain
+	 * cases get here from kernel mode */
+	if (!user_mode(regs))
+		return;
+
+	if (test_thread_flag(TIF_RESTORE_SIGMASK))
+		oldset = &current->saved_sigmask;
+	else
+		oldset = &current->blocked;
+
+	signr = get_signal_to_deliver(&info, &ka, regs, NULL);
+	if (signr > 0) {
+		if (handle_signal(signr, &info, &ka, oldset,
+				  regs, syscall) == 0) {
+			/* a signal was successfully delivered; the saved
+			 * sigmask will have been stored in the signal frame,
+			 * and will be restored by sigreturn, so we can simply
+			 * clear the TIF_RESTORE_SIGMASK flag */
+			if (test_thread_flag(TIF_RESTORE_SIGMASK))
+				clear_thread_flag(TIF_RESTORE_SIGMASK);
+
+			tracehook_signal_handler(signr, &info, &ka, regs, 0);
+		}
+
+		return;
+	}
+
+	/* did we come from a system call? */
+	if (syscall) {
+		/* restart the system call - no handlers present */
+		switch (regs->a4) {
+		case -ERESTARTNOHAND:
+		case -ERESTARTSYS:
+		case -ERESTARTNOINTR:
+			regs->a4 = regs->orig_a4;
+			regs->pc -= 4;
+			break;
+
+		case -ERESTART_RESTARTBLOCK:
+			regs->a4 = regs->orig_a4;
+			regs->b0 = __NR_restart_syscall;
+			regs->pc -= 4;
+			break;
+		}
+	}
+
+	/* if there's no signal to deliver, we just put the saved sigmask
+	 * back */
+	if (test_thread_flag(TIF_RESTORE_SIGMASK)) {
+		clear_thread_flag(TIF_RESTORE_SIGMASK);
+		sigprocmask(SIG_SETMASK, &current->saved_sigmask, NULL);
+	}
+}
+
+/*
+ * notification of userspace execution resumption
+ * - triggered by current->work.notify_resume
+ */
+asmlinkage void do_notify_resume(struct pt_regs *regs, u32 thread_info_flags,
+				 int syscall)
+{
+	/* deal with pending signal delivery */
+	if (thread_info_flags & ((1 << TIF_SIGPENDING) |
+				 (1 << TIF_RESTORE_SIGMASK)))
+		do_signal(regs, syscall);
+
+	if (thread_info_flags & (1 << TIF_NOTIFY_RESUME)) {
+		clear_thread_flag(TIF_NOTIFY_RESUME);
+		tracehook_notify_resume(regs);
+		if (current->replacement_session_keyring)
+			key_replace_session_keyring();
+	}
+}
diff --git a/arch/c6x/kernel/soc.c b/arch/c6x/kernel/soc.c
new file mode 100644
index 000000000000..dd45bc39af0e
--- /dev/null
+++ b/arch/c6x/kernel/soc.c
@@ -0,0 +1,91 @@
+/*
+ *  Miscellaneous SoC-specific hooks.
+ *
+ *  Copyright (C) 2011 Texas Instruments Incorporated
+ *  Author: Mark Salter <msalter@redhat.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+#include <linux/module.h>
+#include <linux/ctype.h>
+#include <linux/etherdevice.h>
+#include <asm/system.h>
+#include <asm/setup.h>
+#include <asm/soc.h>
+
+struct soc_ops soc_ops;
+
+int soc_get_exception(void)
+{
+	if (!soc_ops.get_exception)
+		return -1;
+	return soc_ops.get_exception();
+}
+
+void soc_assert_event(unsigned int evt)
+{
+	if (soc_ops.assert_event)
+		soc_ops.assert_event(evt);
+}
+
+static u8 cmdline_mac[6];
+
+static int __init get_mac_addr_from_cmdline(char *str)
+{
+	int count, i, val;
+
+	for (count = 0; count < 6 && *str; count++, str += 3) {
+		if (!isxdigit(str[0]) || !isxdigit(str[1]))
+			return 0;
+		if (str[2] != ((count < 5) ? ':' : '\0'))
+			return 0;
+
+		for (i = 0, val = 0; i < 2; i++) {
+			val = val << 4;
+			val |= isdigit(str[i]) ?
+				str[i] - '0' : toupper(str[i]) - 'A' + 10;
+		}
+		cmdline_mac[count] = val;
+	}
+	return 1;
+}
+__setup("emac_addr=", get_mac_addr_from_cmdline);
+
+/*
+ * Setup the MAC address for SoC ethernet devices.
+ *
+ * Before calling this function, the ethernet driver will have
+ * initialized the addr with local-mac-address from the device
+ * tree (if found). Allow command line to override, but not
+ * the fused address.
+ */
+int soc_mac_addr(unsigned int index, u8 *addr)
+{
+	int i, have_dt_mac = 0, have_cmdline_mac = 0, have_fuse_mac = 0;
+
+	for (i = 0; i < 6; i++) {
+		if (cmdline_mac[i])
+			have_cmdline_mac = 1;
+		if (c6x_fuse_mac[i])
+			have_fuse_mac = 1;
+		if (addr[i])
+			have_dt_mac = 1;
+	}
+
+	/* cmdline overrides all */
+	if (have_cmdline_mac)
+		memcpy(addr, cmdline_mac, 6);
+	else if (!have_dt_mac) {
+		if (have_fuse_mac)
+			memcpy(addr, c6x_fuse_mac, 6);
+		else
+			random_ether_addr(addr);
+	}
+
+	/* adjust for specific EMAC device */
+	addr[5] += index * c6x_num_cores;
+	return 1;
+}
+EXPORT_SYMBOL_GPL(soc_mac_addr);
diff --git a/arch/c6x/kernel/switch_to.S b/arch/c6x/kernel/switch_to.S
new file mode 100644
index 000000000000..09177ed0fa5c
--- /dev/null
+++ b/arch/c6x/kernel/switch_to.S
@@ -0,0 +1,74 @@
+/*
+ *  Copyright (C) 2011 Texas Instruments Incorporated
+ *  Author: Mark Salter (msalter@redhat.com)
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+
+#include <linux/linkage.h>
+#include <asm/asm-offsets.h>
+
+#define SP	B15
+
+	/*
+	 * void __switch_to(struct thread_info *prev,
+	 *      	    struct thread_info *next,
+	 *		    struct task_struct *tsk) ;
+	 */
+ENTRY(__switch_to)
+	LDDW	.D2T2	*+B4(THREAD_B15_14),B7:B6
+ ||	MV	.L2X	A4,B5	; prev
+ ||	MV	.L1X	B4,A5	; next
+ ||	MVC	.S2	RILC,B1
+
+	STW	.D2T2	B3,*+B5(THREAD_PC)
+ ||	STDW	.D1T1	A13:A12,*+A4(THREAD_A13_12)
+ ||	MVC	.S2	ILC,B0
+
+	LDW	.D2T2	*+B4(THREAD_PC),B3
+ ||	LDDW	.D1T1	*+A5(THREAD_A13_12),A13:A12
+
+	STDW	.D1T1	A11:A10,*+A4(THREAD_A11_10)
+ ||	STDW	.D2T2	B1:B0,*+B5(THREAD_RICL_ICL)
+#ifndef __DSBT__
+ ||	MVKL	.S2	current_ksp,B1
+#endif
+
+	STDW	.D2T2	B15:B14,*+B5(THREAD_B15_14)
+ ||	STDW	.D1T1	A15:A14,*+A4(THREAD_A15_14)
+#ifndef __DSBT__
+ ||	MVKH	.S2	current_ksp,B1
+#endif
+
+	;; Switch to next SP
+	MV	.S2	B7,SP
+#ifdef __DSBT__
+ ||	STW	.D2T2	B7,*+B14(current_ksp)
+#else
+ ||	STW	.D2T2	B7,*B1
+ ||	MV	.L2	B6,B14
+#endif
+ ||	LDDW	.D1T1	*+A5(THREAD_RICL_ICL),A1:A0
+
+	STDW	.D2T2	B11:B10,*+B5(THREAD_B11_10)
+ ||	LDDW	.D1T1	*+A5(THREAD_A15_14),A15:A14
+
+	STDW	.D2T2	B13:B12,*+B5(THREAD_B13_12)
+ ||	LDDW	.D1T1	*+A5(THREAD_A11_10),A11:A10
+
+	B	.S2	B3		; return in next E1
+ ||	LDDW	.D2T2	*+B4(THREAD_B13_12),B13:B12
+
+	LDDW	.D2T2	*+B4(THREAD_B11_10),B11:B10
+	NOP
+
+	MV	.L2X	A0,B0
+ ||	MV	.S1	A6,A4
+
+	MVC	.S2	B0,ILC
+ ||	MV	.L2X	A1,B1
+
+	MVC	.S2	B1,RILC
+ENDPROC(__switch_to)
diff --git a/arch/c6x/kernel/sys_c6x.c b/arch/c6x/kernel/sys_c6x.c
new file mode 100644
index 000000000000..3e9bdfbee8ad
--- /dev/null
+++ b/arch/c6x/kernel/sys_c6x.c
@@ -0,0 +1,74 @@
+/*
+ *  Port on Texas Instruments TMS320C6x architecture
+ *
+ *  Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated
+ *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+#include <linux/module.h>
+#include <linux/syscalls.h>
+#include <linux/uaccess.h>
+
+#include <asm/syscalls.h>
+
+#ifdef CONFIG_ACCESS_CHECK
+int _access_ok(unsigned long addr, unsigned long size)
+{
+	if (!size)
+		return 1;
+
+	if (!addr || addr > (0xffffffffUL - (size - 1)))
+		goto _bad_access;
+
+	if (segment_eq(get_fs(), KERNEL_DS))
+		return 1;
+
+	if (memory_start <= addr && (addr + size - 1) < memory_end)
+		return 1;
+
+_bad_access:
+	pr_debug("Bad access attempt: pid[%d] addr[%08lx] size[0x%lx]\n",
+		 current->pid, addr, size);
+	return 0;
+}
+EXPORT_SYMBOL(_access_ok);
+#endif
+
+/* sys_cache_sync -- sync caches over given range */
+asmlinkage int sys_cache_sync(unsigned long s, unsigned long e)
+{
+	L1D_cache_block_writeback_invalidate(s, e);
+	L1P_cache_block_invalidate(s, e);
+
+	return 0;
+}
+
+/* Provide the actual syscall number to call mapping. */
+#undef __SYSCALL
+#define __SYSCALL(nr, call) [nr] = (call),
+
+/*
+ * Use trampolines
+ */
+#define sys_pread64		sys_pread_c6x
+#define sys_pwrite64		sys_pwrite_c6x
+#define sys_truncate64		sys_truncate64_c6x
+#define sys_ftruncate64		sys_ftruncate64_c6x
+#define sys_fadvise64		sys_fadvise64_c6x
+#define sys_fadvise64_64	sys_fadvise64_64_c6x
+#define sys_fallocate		sys_fallocate_c6x
+
+/* Use sys_mmap_pgoff directly */
+#define sys_mmap2 sys_mmap_pgoff
+
+/*
+ * Note that we can't include <linux/unistd.h> here since the header
+ * guard will defeat us; <asm/unistd.h> checks for __SYSCALL as well.
+ */
+void *sys_call_table[__NR_syscalls] = {
+	[0 ... __NR_syscalls-1] = sys_ni_syscall,
+#include <asm/unistd.h>
+};
diff --git a/arch/c6x/kernel/time.c b/arch/c6x/kernel/time.c
new file mode 100644
index 000000000000..4c9f136165f7
--- /dev/null
+++ b/arch/c6x/kernel/time.c
@@ -0,0 +1,65 @@
+/*
+ *  Port on Texas Instruments TMS320C6x architecture
+ *
+ *  Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated
+ *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/clocksource.h>
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/param.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/interrupt.h>
+#include <linux/timex.h>
+#include <linux/profile.h>
+
+#include <asm/timer64.h>
+
+static u32 sched_clock_multiplier;
+#define SCHED_CLOCK_SHIFT 16
+
+static cycle_t tsc_read(struct clocksource *cs)
+{
+	return get_cycles();
+}
+
+static struct clocksource clocksource_tsc = {
+	.name		= "timestamp",
+	.rating		= 300,
+	.read		= tsc_read,
+	.mask		= CLOCKSOURCE_MASK(64),
+	.flags		= CLOCK_SOURCE_IS_CONTINUOUS,
+};
+
+/*
+ * scheduler clock - returns current time in nanoseconds.
+ */
+u64 sched_clock(void)
+{
+	u64 tsc = get_cycles();
+
+	return (tsc * sched_clock_multiplier) >> SCHED_CLOCK_SHIFT;
+}
+
+void time_init(void)
+{
+	u64 tmp = (u64)NSEC_PER_SEC << SCHED_CLOCK_SHIFT;
+
+	do_div(tmp, c6x_core_freq);
+	sched_clock_multiplier = tmp;
+
+	clocksource_register_hz(&clocksource_tsc, c6x_core_freq);
+
+	/* write anything into TSCL to enable counting */
+	set_creg(TSCL, 0);
+
+	/* probe for timer64 event timer */
+	timer64_init();
+}
diff --git a/arch/c6x/kernel/traps.c b/arch/c6x/kernel/traps.c
new file mode 100644
index 000000000000..f50e3edd6dad
--- /dev/null
+++ b/arch/c6x/kernel/traps.c
@@ -0,0 +1,423 @@
+/*
+ *  Port on Texas Instruments TMS320C6x architecture
+ *
+ *  Copyright (C) 2004, 2006, 2009, 2010, 2011 Texas Instruments Incorporated
+ *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+#include <linux/module.h>
+#include <linux/ptrace.h>
+#include <linux/kallsyms.h>
+#include <linux/bug.h>
+
+#include <asm/soc.h>
+#include <asm/traps.h>
+
+int (*c6x_nmi_handler)(struct pt_regs *regs);
+
+void __init trap_init(void)
+{
+	ack_exception(EXCEPT_TYPE_NXF);
+	ack_exception(EXCEPT_TYPE_EXC);
+	ack_exception(EXCEPT_TYPE_IXF);
+	ack_exception(EXCEPT_TYPE_SXF);
+	enable_exception();
+}
+
+void show_regs(struct pt_regs *regs)
+{
+	pr_err("\n");
+	pr_err("PC: %08lx SP: %08lx\n", regs->pc, regs->sp);
+	pr_err("Status: %08lx ORIG_A4: %08lx\n", regs->csr, regs->orig_a4);
+	pr_err("A0: %08lx  B0: %08lx\n", regs->a0, regs->b0);
+	pr_err("A1: %08lx  B1: %08lx\n", regs->a1, regs->b1);
+	pr_err("A2: %08lx  B2: %08lx\n", regs->a2, regs->b2);
+	pr_err("A3: %08lx  B3: %08lx\n", regs->a3, regs->b3);
+	pr_err("A4: %08lx  B4: %08lx\n", regs->a4, regs->b4);
+	pr_err("A5: %08lx  B5: %08lx\n", regs->a5, regs->b5);
+	pr_err("A6: %08lx  B6: %08lx\n", regs->a6, regs->b6);
+	pr_err("A7: %08lx  B7: %08lx\n", regs->a7, regs->b7);
+	pr_err("A8: %08lx  B8: %08lx\n", regs->a8, regs->b8);
+	pr_err("A9: %08lx  B9: %08lx\n", regs->a9, regs->b9);
+	pr_err("A10: %08lx  B10: %08lx\n", regs->a10, regs->b10);
+	pr_err("A11: %08lx  B11: %08lx\n", regs->a11, regs->b11);
+	pr_err("A12: %08lx  B12: %08lx\n", regs->a12, regs->b12);
+	pr_err("A13: %08lx  B13: %08lx\n", regs->a13, regs->b13);
+	pr_err("A14: %08lx  B14: %08lx\n", regs->a14, regs->dp);
+	pr_err("A15: %08lx  B15: %08lx\n", regs->a15, regs->sp);
+	pr_err("A16: %08lx  B16: %08lx\n", regs->a16, regs->b16);
+	pr_err("A17: %08lx  B17: %08lx\n", regs->a17, regs->b17);
+	pr_err("A18: %08lx  B18: %08lx\n", regs->a18, regs->b18);
+	pr_err("A19: %08lx  B19: %08lx\n", regs->a19, regs->b19);
+	pr_err("A20: %08lx  B20: %08lx\n", regs->a20, regs->b20);
+	pr_err("A21: %08lx  B21: %08lx\n", regs->a21, regs->b21);
+	pr_err("A22: %08lx  B22: %08lx\n", regs->a22, regs->b22);
+	pr_err("A23: %08lx  B23: %08lx\n", regs->a23, regs->b23);
+	pr_err("A24: %08lx  B24: %08lx\n", regs->a24, regs->b24);
+	pr_err("A25: %08lx  B25: %08lx\n", regs->a25, regs->b25);
+	pr_err("A26: %08lx  B26: %08lx\n", regs->a26, regs->b26);
+	pr_err("A27: %08lx  B27: %08lx\n", regs->a27, regs->b27);
+	pr_err("A28: %08lx  B28: %08lx\n", regs->a28, regs->b28);
+	pr_err("A29: %08lx  B29: %08lx\n", regs->a29, regs->b29);
+	pr_err("A30: %08lx  B30: %08lx\n", regs->a30, regs->b30);
+	pr_err("A31: %08lx  B31: %08lx\n", regs->a31, regs->b31);
+}
+
+void dump_stack(void)
+{
+	unsigned long stack;
+
+	show_stack(current, &stack);
+}
+EXPORT_SYMBOL(dump_stack);
+
+
+void die(char *str, struct pt_regs *fp, int nr)
+{
+	console_verbose();
+	pr_err("%s: %08x\n", str, nr);
+	show_regs(fp);
+
+	pr_err("Process %s (pid: %d, stackpage=%08lx)\n",
+	       current->comm, current->pid, (PAGE_SIZE +
+					     (unsigned long) current));
+
+	dump_stack();
+	while (1)
+		;
+}
+
+static void die_if_kernel(char *str, struct pt_regs *fp, int nr)
+{
+	if (user_mode(fp))
+		return;
+
+	die(str, fp, nr);
+}
+
+
+/* Internal exceptions */
+static struct exception_info iexcept_table[10] = {
+	{ "Oops - instruction fetch", SIGBUS, BUS_ADRERR },
+	{ "Oops - fetch packet", SIGBUS, BUS_ADRERR },
+	{ "Oops - execute packet", SIGILL, ILL_ILLOPC },
+	{ "Oops - undefined instruction", SIGILL, ILL_ILLOPC },
+	{ "Oops - resource conflict", SIGILL, ILL_ILLOPC },
+	{ "Oops - resource access", SIGILL, ILL_PRVREG },
+	{ "Oops - privilege", SIGILL, ILL_PRVOPC },
+	{ "Oops - loops buffer", SIGILL, ILL_ILLOPC },
+	{ "Oops - software exception", SIGILL, ILL_ILLTRP },
+	{ "Oops - unknown exception", SIGILL, ILL_ILLOPC }
+};
+
+/* External exceptions */
+static struct exception_info eexcept_table[128] = {
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - external exception", SIGBUS, BUS_ADRERR },
+	{ "Oops - CPU memory protection fault", SIGSEGV, SEGV_ACCERR },
+	{ "Oops - CPU memory protection fault in L1P", SIGSEGV, SEGV_ACCERR },
+	{ "Oops - DMA memory protection fault in L1P", SIGSEGV, SEGV_ACCERR },
+	{ "Oops - CPU memory protection fault in L1D", SIGSEGV, SEGV_ACCERR },
+	{ "Oops - DMA memory protection fault in L1D", SIGSEGV, SEGV_ACCERR },
+	{ "Oops - CPU memory protection fault in L2", SIGSEGV, SEGV_ACCERR },
+	{ "Oops - DMA memory protection fault in L2", SIGSEGV, SEGV_ACCERR },
+	{ "Oops - EMC CPU memory protection fault", SIGSEGV, SEGV_ACCERR },
+	{ "Oops - EMC bus error", SIGBUS, BUS_ADRERR }
+};
+
+static void do_trap(struct exception_info *except_info, struct pt_regs *regs)
+{
+	unsigned long addr = instruction_pointer(regs);
+	siginfo_t info;
+
+	if (except_info->code != TRAP_BRKPT)
+		pr_err("TRAP: %s PC[0x%lx] signo[%d] code[%d]\n",
+		       except_info->kernel_str, regs->pc,
+		       except_info->signo, except_info->code);
+
+	die_if_kernel(except_info->kernel_str, regs, addr);
+
+	info.si_signo = except_info->signo;
+	info.si_errno = 0;
+	info.si_code  = except_info->code;
+	info.si_addr  = (void __user *)addr;
+
+	force_sig_info(except_info->signo, &info, current);
+}
+
+/*
+ * Process an internal exception (non maskable)
+ */
+static int process_iexcept(struct pt_regs *regs)
+{
+	unsigned int iexcept_report = get_iexcept();
+	unsigned int iexcept_num;
+
+	ack_exception(EXCEPT_TYPE_IXF);
+
+	pr_err("IEXCEPT: PC[0x%lx]\n", regs->pc);
+
+	while (iexcept_report) {
+		iexcept_num = __ffs(iexcept_report);
+		iexcept_report &= ~(1 << iexcept_num);
+		set_iexcept(iexcept_report);
+		if (*(unsigned int *)regs->pc == BKPT_OPCODE) {
+			/* This is a breakpoint */
+			struct exception_info bkpt_exception = {
+				"Oops - undefined instruction",
+				  SIGTRAP, TRAP_BRKPT
+			};
+			do_trap(&bkpt_exception, regs);
+			iexcept_report &= ~(0xFF);
+			set_iexcept(iexcept_report);
+			continue;
+		}
+
+		do_trap(&iexcept_table[iexcept_num], regs);
+	}
+	return 0;
+}
+
+/*
+ * Process an external exception (maskable)
+ */
+static void process_eexcept(struct pt_regs *regs)
+{
+	int evt;
+
+	pr_err("EEXCEPT: PC[0x%lx]\n", regs->pc);
+
+	while ((evt = soc_get_exception()) >= 0)
+		do_trap(&eexcept_table[evt], regs);
+
+	ack_exception(EXCEPT_TYPE_EXC);
+}
+
+/*
+ * Main exception processing
+ */
+asmlinkage int process_exception(struct pt_regs *regs)
+{
+	unsigned int type;
+	unsigned int type_num;
+	unsigned int ie_num = 9; /* default is unknown exception */
+
+	while ((type = get_except_type()) != 0) {
+		type_num = fls(type) - 1;
+
+		switch (type_num) {
+		case EXCEPT_TYPE_NXF:
+			ack_exception(EXCEPT_TYPE_NXF);
+			if (c6x_nmi_handler)
+				(c6x_nmi_handler)(regs);
+			else
+				pr_alert("NMI interrupt!\n");
+			break;
+
+		case EXCEPT_TYPE_IXF:
+			if (process_iexcept(regs))
+				return 1;
+			break;
+
+		case EXCEPT_TYPE_EXC:
+			process_eexcept(regs);
+			break;
+
+		case EXCEPT_TYPE_SXF:
+			ie_num = 8;
+		default:
+			ack_exception(type_num);
+			do_trap(&iexcept_table[ie_num], regs);
+			break;
+		}
+	}
+	return 0;
+}
+
+static int kstack_depth_to_print = 48;
+
+static void show_trace(unsigned long *stack, unsigned long *endstack)
+{
+	unsigned long addr;
+	int i;
+
+	pr_debug("Call trace:");
+	i = 0;
+	while (stack + 1 <= endstack) {
+		addr = *stack++;
+		/*
+		 * If the address is either in the text segment of the
+		 * kernel, or in the region which contains vmalloc'ed
+		 * memory, it *may* be the address of a calling
+		 * routine; if so, print it so that someone tracing
+		 * down the cause of the crash will be able to figure
+		 * out the call path that was taken.
+		 */
+		if (__kernel_text_address(addr)) {
+#ifndef CONFIG_KALLSYMS
+			if (i % 5 == 0)
+				pr_debug("\n	    ");
+#endif
+			pr_debug(" [<%08lx>]", addr);
+			print_symbol(" %s\n", addr);
+			i++;
+		}
+	}
+	pr_debug("\n");
+}
+
+void show_stack(struct task_struct *task, unsigned long *stack)
+{
+	unsigned long *p, *endstack;
+	int i;
+
+	if (!stack) {
+		if (task && task != current)
+			/* We know this is a kernel stack,
+			   so this is the start/end */
+			stack = (unsigned long *)thread_saved_ksp(task);
+		else
+			stack = (unsigned long *)&stack;
+	}
+	endstack = (unsigned long *)(((unsigned long)stack + THREAD_SIZE - 1)
+				     & -THREAD_SIZE);
+
+	pr_debug("Stack from %08lx:", (unsigned long)stack);
+	for (i = 0, p = stack; i < kstack_depth_to_print; i++) {
+		if (p + 1 > endstack)
+			break;
+		if (i % 8 == 0)
+			pr_cont("\n	    ");
+		pr_cont(" %08lx", *p++);
+	}
+	pr_cont("\n");
+	show_trace(stack, endstack);
+}
+
+int is_valid_bugaddr(unsigned long addr)
+{
+	return __kernel_text_address(addr);
+}
diff --git a/arch/c6x/kernel/vectors.S b/arch/c6x/kernel/vectors.S
new file mode 100644
index 000000000000..c95c66fc71e8
--- /dev/null
+++ b/arch/c6x/kernel/vectors.S
@@ -0,0 +1,81 @@
+;
+;  Port on Texas Instruments TMS320C6x architecture
+;
+;  Copyright (C) 2004, 2006, 2009, 2010, 2011 Texas Instruments Incorporated
+;  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+;
+;  This program is free software; you can redistribute it and/or modify
+;  it under the terms of the GNU General Public License version 2 as
+;  published by the Free Software Foundation.
+;
+;  This section handles all the interrupt vector routines.
+;  At RESET the processor sets up the DRAM timing parameters and
+;  branches to the label _c_int00 which handles initialization for the C code.
+;
+
+#define ALIGNMENT 5
+
+	.macro IRQVEC name, handler
+	.align ALIGNMENT
+	.hidden \name
+	.global \name
+\name:
+#ifdef CONFIG_C6X_BIG_KERNEL
+	STW	.D2T1	A0,*B15--[2]
+ ||	MVKL	.S1	\handler,A0
+	MVKH	.S1	\handler,A0
+	B	.S2X	A0
+	LDW	.D2T1	*++B15[2],A0
+	NOP	4
+	NOP
+	NOP
+	.endm
+#else /* CONFIG_C6X_BIG_KERNEL */
+	B	.S2	\handler
+	NOP
+	NOP
+	NOP
+	NOP
+	NOP
+	NOP
+	NOP
+	.endm
+#endif /* CONFIG_C6X_BIG_KERNEL */
+
+	   .sect ".vectors","ax"
+	   .align ALIGNMENT
+	   .global RESET
+	   .hidden RESET
+RESET:
+#ifdef CONFIG_C6X_BIG_KERNEL
+	   MVKL	.S1	_c_int00,A0		; branch to _c_int00
+	   MVKH	.S1	_c_int00,A0
+	   B	.S2X	A0
+#else
+	   B	.S2	_c_int00
+	   NOP
+	   NOP
+#endif
+	   NOP
+	   NOP
+	   NOP
+	   NOP
+	   NOP
+
+
+	   IRQVEC NMI,_nmi_handler		; NMI interrupt
+	   IRQVEC AINT,_bad_interrupt		; reserved
+	   IRQVEC MSGINT,_bad_interrupt		; reserved
+
+	   IRQVEC INT4,_int4_handler
+	   IRQVEC INT5,_int5_handler
+	   IRQVEC INT6,_int6_handler
+	   IRQVEC INT7,_int7_handler
+	   IRQVEC INT8,_int8_handler
+	   IRQVEC INT9,_int9_handler
+	   IRQVEC INT10,_int10_handler
+	   IRQVEC INT11,_int11_handler
+	   IRQVEC INT12,_int12_handler
+	   IRQVEC INT13,_int13_handler
+	   IRQVEC INT14,_int14_handler
+	   IRQVEC INT15,_int15_handler
diff --git a/arch/c6x/kernel/vmlinux.lds.S b/arch/c6x/kernel/vmlinux.lds.S
new file mode 100644
index 000000000000..1d81c4c129ec
--- /dev/null
+++ b/arch/c6x/kernel/vmlinux.lds.S
@@ -0,0 +1,162 @@
+/*
+ * ld script for the c6x kernel
+ *
+ *  Copyright (C) 2010, 2011 Texas Instruments Incorporated
+ *  Mark Salter <msalter@redhat.com>
+ */
+#include <asm-generic/vmlinux.lds.h>
+#include <asm/thread_info.h>
+#include <asm/page.h>
+
+ENTRY(_c_int00)
+
+#if defined(CONFIG_CPU_BIG_ENDIAN)
+jiffies = jiffies_64 + 4;
+#else
+jiffies = jiffies_64;
+#endif
+
+#define	READONLY_SEGMENT_START	\
+	. = PAGE_OFFSET;
+#define	READWRITE_SEGMENT_START	\
+	. = ALIGN(128);		\
+	_data_lma = .;
+
+SECTIONS
+{
+	/*
+	 * Start kernel read only segment
+	 */
+	READONLY_SEGMENT_START
+
+	.vectors :
+	{
+		_vectors_start = .;
+		*(.vectors)
+		. = ALIGN(0x400);
+		_vectors_end = .;
+	}
+
+	. = ALIGN(0x1000);
+	.cmdline :
+	{
+		*(.cmdline)
+	}
+
+	/*
+	 * This section contains data which may be shared with other
+	 * cores. It needs to be a fixed offset from PAGE_OFFSET
+	 * regardless of kernel configuration.
+	 */
+	.virtio_ipc_dev :
+	{
+		*(.virtio_ipc_dev)
+	}
+
+	. = ALIGN(PAGE_SIZE);
+	.init :
+	{
+		_stext = .;
+		_sinittext = .;
+		HEAD_TEXT
+		INIT_TEXT
+		_einittext = .;
+	}
+
+	__init_begin = _stext;
+	INIT_DATA_SECTION(16)
+
+	PERCPU_SECTION(128)
+
+	. = ALIGN(PAGE_SIZE);
+	__init_end = .;
+
+	.text :
+	{
+		_text = .;
+		TEXT_TEXT
+		SCHED_TEXT
+		LOCK_TEXT
+		IRQENTRY_TEXT
+		KPROBES_TEXT
+		*(.fixup)
+		*(.gnu.warning)
+	}
+
+	EXCEPTION_TABLE(16)
+	NOTES
+
+	RO_DATA_SECTION(PAGE_SIZE)
+	.const :
+	{
+		*(.const .const.* .gnu.linkonce.r.*)
+		*(.switch)
+	}
+
+	. = ALIGN (8) ;
+	__fdt_blob : AT(ADDR(__fdt_blob) - LOAD_OFFSET)
+	{
+		_fdt_start = . ;	/* place for fdt blob */
+		*(__fdt_blob) ;		/* Any link-placed DTB */
+		BYTE(0);		/* section always has contents */
+	        . = _fdt_start + 0x4000;	/* Pad up to 16kbyte */
+		_fdt_end = . ;
+	}
+
+	_etext = .;
+
+	/*
+	 * Start kernel read-write segment.
+	 */
+	READWRITE_SEGMENT_START
+	_sdata = .;
+
+	.fardata : AT(ADDR(.fardata) - LOAD_OFFSET)
+	{
+		INIT_TASK_DATA(THREAD_SIZE)
+		NOSAVE_DATA
+		PAGE_ALIGNED_DATA(PAGE_SIZE)
+		CACHELINE_ALIGNED_DATA(128)
+		READ_MOSTLY_DATA(128)
+		DATA_DATA
+		CONSTRUCTORS
+		*(.data1)
+		*(.fardata .fardata.*)
+		*(.data.debug_bpt)
+	}
+
+	.neardata ALIGN(8) : AT(ADDR(.neardata) - LOAD_OFFSET)
+	{
+		*(.neardata2 .neardata2.* .gnu.linkonce.s2.*)
+		*(.neardata .neardata.* .gnu.linkonce.s.*)
+		. = ALIGN(8);
+	}
+
+	_edata = .;
+
+	__bss_start = .;
+	SBSS(8)
+	BSS(8)
+	.far :
+	{
+		. = ALIGN(8);
+		*(.dynfar)
+		*(.far .far.* .gnu.linkonce.b.*)
+		. = ALIGN(8);
+	}
+	__bss_stop = .;
+
+	_end = .;
+
+	DWARF_DEBUG
+
+	/DISCARD/ :
+	{
+		  EXIT_TEXT
+		  EXIT_DATA
+		  EXIT_CALL
+		  *(.discard)
+		  *(.discard.*)
+		  *(.interp)
+	}
+}
diff --git a/arch/c6x/lib/Makefile b/arch/c6x/lib/Makefile
new file mode 100644
index 000000000000..ffd3c659091a
--- /dev/null
+++ b/arch/c6x/lib/Makefile
@@ -0,0 +1,7 @@
+#
+# Makefile for arch/c6x/lib/
+#
+
+lib-y := divu.o divi.o pop_rts.o push_rts.o remi.o remu.o strasgi.o llshru.o
+lib-y += llshr.o llshl.o negll.o mpyll.o divremi.o divremu.o
+lib-y += checksum.o csum_64plus.o memcpy_64plus.o strasgi_64plus.o
diff --git a/arch/c6x/lib/checksum.c b/arch/c6x/lib/checksum.c
new file mode 100644
index 000000000000..67cc93b0b932
--- /dev/null
+++ b/arch/c6x/lib/checksum.c
@@ -0,0 +1,36 @@
+/*
+ *		This program is free software; you can redistribute it and/or
+ *		modify it under the terms of the GNU General Public License
+ *		as published by the Free Software Foundation; either version
+ *		2 of the License, or (at your option) any later version.
+ */
+#include <linux/module.h>
+#include <net/checksum.h>
+
+#include <asm/byteorder.h>
+
+/*
+ * copy from fs while checksumming, otherwise like csum_partial
+ */
+__wsum
+csum_partial_copy_from_user(const void __user *src, void *dst, int len,
+			    __wsum sum, int *csum_err)
+{
+	int missing;
+
+	missing = __copy_from_user(dst, src, len);
+	if (missing) {
+		memset(dst + len - missing, 0, missing);
+		*csum_err = -EFAULT;
+	} else
+		*csum_err = 0;
+
+	return csum_partial(dst, len, sum);
+}
+EXPORT_SYMBOL(csum_partial_copy_from_user);
+
+/* These are from csum_64plus.S */
+EXPORT_SYMBOL(csum_partial);
+EXPORT_SYMBOL(csum_partial_copy);
+EXPORT_SYMBOL(ip_compute_csum);
+EXPORT_SYMBOL(ip_fast_csum);
diff --git a/arch/c6x/lib/csum_64plus.S b/arch/c6x/lib/csum_64plus.S
new file mode 100644
index 000000000000..6d2589647227
--- /dev/null
+++ b/arch/c6x/lib/csum_64plus.S
@@ -0,0 +1,419 @@
+;
+;  linux/arch/c6x/lib/csum_64plus.s
+;
+;  Port on Texas Instruments TMS320C6x architecture
+;
+;  Copyright (C) 2006, 2009, 2010, 2011 Texas Instruments Incorporated
+;  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+;
+;  This program is free software; you can redistribute it and/or modify
+;  it under the terms of the GNU General Public License version 2 as
+;  published by the Free Software Foundation.
+;
+#include <linux/linkage.h>
+
+;
+;unsigned int csum_partial_copy(const char *src, char * dst,
+;				int len, int sum)
+;
+; A4:	src
+; B4:	dst
+; A6:	len
+; B6:	sum
+; return csum in A4
+;
+
+	.text
+ENTRY(csum_partial_copy)
+	MVC	.S2	ILC,B30
+
+	MV	.D1X	B6,A31		; given csum
+	ZERO	.D1	A9		; csum (a side)
+||	ZERO	.D2	B9		; csum (b side)
+||	SHRU	.S2X	A6,2,B5		; len / 4
+
+	;; Check alignment and size
+	AND	.S1	3,A4,A1
+||	AND	.S2	3,B4,B0
+	OR	.L2X	B0,A1,B0	; non aligned condition
+||	MVC	.S2	B5,ILC
+||	MVK	.D2	1,B2
+||	MV	.D1X	B5,A1		; words condition
+  [!A1]	B	.S1	L8
+   [B0] BNOP	.S1	L6,5
+
+	SPLOOP		1
+
+	;; Main loop for aligned words
+	LDW	.D1T1	*A4++,A7
+	NOP	4
+	MV	.S2X	A7,B7
+||	EXTU	.S1	A7,0,16,A16
+	STW	.D2T2	B7,*B4++
+||	MPYU	.M2	B7,B2,B8
+||	ADD	.L1	A16,A9,A9
+	NOP
+	SPKERNEL	8,0
+||	ADD	.L2	B8,B9,B9
+
+	ZERO	.D1	A1
+||	ADD	.L1X	A9,B9,A9	;  add csum from a and b sides
+
+L6:
+  [!A1]	BNOP	.S1	L8,5
+
+	;; Main loop for non-aligned words
+	SPLOOP		2
+ ||	MVK	.L1	1,A2
+
+	LDNW	.D1T1	*A4++,A7
+	NOP		3
+
+	NOP
+	MV	.S2X	A7,B7
+ ||	EXTU	.S1	A7,0,16,A16
+ ||	MPYU	.M1	A7,A2,A8
+
+	ADD	.L1	A16,A9,A9
+	SPKERNEL	6,0
+ ||	STNW	.D2T2	B7,*B4++
+ ||	ADD	.L1	A8,A9,A9
+
+L8:	AND	.S2X	2,A6,B5
+	CMPGT	.L2	B5,0,B0
+  [!B0]	BNOP	.S1	L82,4
+
+	;; Manage half-word
+	ZERO	.L1	A7
+||	ZERO	.D1	A8
+
+#ifdef CONFIG_CPU_BIG_ENDIAN
+
+	LDBU	.D1T1	*A4++,A7
+	LDBU	.D1T1	*A4++,A8
+	NOP		3
+	SHL	.S1	A7,8,A0
+	ADD	.S1	A8,A9,A9
+	STB	.D2T1	A7,*B4++
+||	ADD	.S1	A0,A9,A9
+	STB	.D2T1	A8,*B4++
+
+#else
+
+	LDBU	.D1T1	*A4++,A7
+	LDBU	.D1T1	*A4++,A8
+	NOP		3
+	ADD	.S1	A7,A9,A9
+	SHL	.S1	A8,8,A0
+
+	STB	.D2T1	A7,*B4++
+||	ADD	.S1	A0,A9,A9
+	STB	.D2T1	A8,*B4++
+
+#endif
+
+	;; Manage eventually the last byte
+L82:	AND	.S2X	1,A6,B0
+  [!B0]	BNOP	.S1	L9,5
+
+||	ZERO	.L1	A7
+
+L83:	LDBU	.D1T1	*A4++,A7
+	NOP		4
+
+	MV	.L2X	A7,B7
+
+#ifdef CONFIG_CPU_BIG_ENDIAN
+
+	STB	.D2T2	B7,*B4++
+||	SHL	.S1	A7,8,A7
+	ADD	.S1	A7,A9,A9
+
+#else
+
+	STB	.D2T2	B7,*B4++
+||	ADD	.S1	A7,A9,A9
+
+#endif
+
+	;; Fold the csum
+L9:	SHRU	.S2X	A9,16,B0
+  [!B0]	BNOP	.S1	L10,5
+
+L91:	SHRU	.S2X	A9,16,B4
+||	EXTU	.S1	A9,16,16,A3
+	ADD	.D1X	A3,B4,A9
+
+	SHRU	.S1	A9,16,A0
+   [A0]	BNOP	.S1	L91,5
+
+L10:	ADD	.D1	A31,A9,A9
+	MV	.D1	A9,A4
+
+	BNOP	.S2	B3,4
+	MVC	.S2	B30,ILC
+ENDPROC(csum_partial_copy)
+
+;
+;unsigned short
+;ip_fast_csum(unsigned char *iph, unsigned int ihl)
+;{
+;	unsigned int checksum = 0;
+;	unsigned short *tosum = (unsigned short *) iph;
+;	int len;
+;
+;	len = ihl*4;
+;
+;	if (len <= 0)
+;		return 0;
+;
+;	while(len) {
+;		len -= 2;
+;		checksum += *tosum++;
+;	}
+;	if (len & 1)
+;		checksum += *(unsigned char*) tosum;
+;
+;	while(checksum >> 16)
+;		checksum = (checksum & 0xffff) + (checksum >> 16);
+;
+;	return ~checksum;
+;}
+;
+; A4:	iph
+; B4:	ihl
+; return checksum in A4
+;
+	.text
+
+ENTRY(ip_fast_csum)
+	ZERO	.D1	A5
+ ||	MVC	.S2	ILC,B30
+	SHL	.S2	B4,2,B0
+	CMPGT	.L2	B0,0,B1
+  [!B1] BNOP	.S1	L15,4
+  [!B1]	ZERO	.D1	A3
+
+  [!B0]	B	.S1	L12
+	SHRU	.S2	B0,1,B0
+	MVC	.S2	B0,ILC
+	NOP	3
+
+	SPLOOP	1
+	LDHU	.D1T1	*A4++,A3
+	NOP	3
+	NOP
+	SPKERNEL	5,0
+ ||	ADD	.L1	A3,A5,A5
+
+L12:	SHRU	.S1	A5,16,A0
+  [!A0]	BNOP	.S1	L14,5
+
+L13:	SHRU	.S2X	A5,16,B4
+	EXTU	.S1	A5,16,16,A3
+	ADD	.D1X	A3,B4,A5
+	SHRU	.S1	A5,16,A0
+  [A0]	BNOP	.S1	L13,5
+
+L14:	NOT	.D1	A5,A3
+	EXTU	.S1	A3,16,16,A3
+
+L15:	BNOP	.S2	B3,3
+	MVC	.S2	B30,ILC
+	MV	.D1	A3,A4
+ENDPROC(ip_fast_csum)
+
+;
+;unsigned short
+;do_csum(unsigned char *buff, unsigned int len)
+;{
+;	int odd, count;
+;	unsigned int result = 0;
+;
+;	if (len <= 0)
+;		goto out;
+;	odd = 1 & (unsigned long) buff;
+;	if (odd) {
+;#ifdef __LITTLE_ENDIAN
+;		result += (*buff << 8);
+;#else
+;		result = *buff;
+;#endif
+;		len--;
+;		buff++;
+;	}
+;	count = len >> 1;		/* nr of 16-bit words.. */
+;	if (count) {
+;		if (2 & (unsigned long) buff) {
+;			result += *(unsigned short *) buff;
+;			count--;
+;			len -= 2;
+;			buff += 2;
+;		}
+;		count >>= 1;		/* nr of 32-bit words.. */
+;		if (count) {
+;			unsigned int carry = 0;
+;			do {
+;				unsigned int w = *(unsigned int *) buff;
+;				count--;
+;				buff += 4;
+;				result += carry;
+;				result += w;
+;				carry = (w > result);
+;			} while (count);
+;			result += carry;
+;			result = (result & 0xffff) + (result >> 16);
+;		}
+;		if (len & 2) {
+;			result += *(unsigned short *) buff;
+;			buff += 2;
+;		}
+;	}
+;	if (len & 1)
+;#ifdef __LITTLE_ENDIAN
+;		result += *buff;
+;#else
+;		result += (*buff << 8);
+;#endif
+;	result = (result & 0xffff) + (result >> 16);
+;	/* add up carry.. */
+;	result = (result & 0xffff) + (result >> 16);
+;	if (odd)
+;		result = ((result >> 8) & 0xff) | ((result & 0xff) << 8);
+;out:
+;	return result;
+;}
+;
+; A4:	buff
+; B4:	len
+; return checksum in A4
+;
+
+ENTRY(do_csum)
+	   CMPGT   .L2	   B4,0,B0
+   [!B0]   BNOP    .S1	   L26,3
+	   EXTU    .S1	   A4,31,31,A0
+
+	   MV	   .L1	   A0,A3
+||	   MV	   .S1X    B3,A5
+||	   MV	   .L2	   B4,B3
+||	   ZERO    .D1	   A1
+
+#ifdef CONFIG_CPU_BIG_ENDIAN
+   [A0]    SUB	   .L2	   B3,1,B3
+|| [A0]    LDBU    .D1T1   *A4++,A1
+#else
+   [!A0]   BNOP    .S1	   L21,5
+|| [A0]    LDBU    .D1T1   *A4++,A0
+	   SUB	   .L2	   B3,1,B3
+||	   SHL	   .S1	   A0,8,A1
+L21:
+#endif
+	   SHR	   .S2	   B3,1,B0
+   [!B0]   BNOP    .S1	   L24,3
+	   MVK	   .L1	   2,A0
+	   AND	   .L1	   A4,A0,A0
+
+   [!A0]   BNOP    .S1	   L22,5
+|| [A0]    LDHU    .D1T1   *A4++,A0
+	   SUB	   .L2	   B0,1,B0
+||	   SUB	   .S2	   B3,2,B3
+||	   ADD	   .L1	   A0,A1,A1
+L22:
+	   SHR	   .S2	   B0,1,B0
+||	   ZERO    .L1	   A0
+
+   [!B0]   BNOP    .S1	   L23,5
+|| [B0]    MVC	   .S2	   B0,ILC
+
+	   SPLOOP  3
+	   SPMASK  L1
+||	   MV	   .L1	   A1,A2
+||	   LDW	   .D1T1   *A4++,A1
+
+	   NOP	   4
+	   ADD	   .L1	   A0,A1,A0
+	   ADD	   .L1	   A2,A0,A2
+
+	   SPKERNEL 1,2
+||	   CMPGTU  .L1	   A1,A2,A0
+
+	   ADD	   .L1	   A0,A2,A6
+	   EXTU    .S1	   A6,16,16,A7
+	   SHRU    .S2X    A6,16,B0
+	   NOP		   1
+	   ADD	   .L1X    A7,B0,A1
+L23:
+	   MVK	   .L2	   2,B0
+	   AND	   .L2	   B3,B0,B0
+   [B0]    LDHU    .D1T1   *A4++,A0
+	   NOP	   4
+   [B0]    ADD	   .L1	   A0,A1,A1
+L24:
+	   EXTU    .S2	   B3,31,31,B0
+#ifdef CONFIG_CPU_BIG_ENDIAN
+   [!B0]   BNOP    .S1	   L25,4
+|| [B0]    LDBU    .D1T1   *A4,A0
+	   SHL	   .S1	   A0,8,A0
+	   ADD	   .L1	   A0,A1,A1
+L25:
+#else
+   [B0]    LDBU    .D1T1   *A4,A0
+	   NOP	   4
+   [B0]    ADD	   .L1	   A0,A1,A1
+#endif
+	   EXTU    .S1	   A1,16,16,A0
+	   SHRU    .S2X    A1,16,B0
+	   NOP	   1
+	   ADD	   .L1X    A0,B0,A0
+	   SHRU    .S1	   A0,16,A1
+	   ADD	   .L1	   A0,A1,A0
+	   EXTU    .S1	   A0,16,16,A1
+	   EXTU    .S1	   A1,16,24,A2
+
+	   EXTU    .S1	   A1,24,16,A0
+||	   MV	   .L2X    A3,B0
+
+   [B0]    OR	   .L1	   A0,A2,A1
+L26:
+	   NOP	   1
+	   BNOP    .S2X    A5,4
+	   MV	   .L1	   A1,A4
+ENDPROC(do_csum)
+
+;__wsum csum_partial(const void *buff, int len, __wsum wsum)
+;{
+;	unsigned int sum = (__force unsigned int)wsum;
+;	unsigned int result = do_csum(buff, len);
+;
+;	/* add in old sum, and carry.. */
+;	result += sum;
+;	if (sum > result)
+;		result += 1;
+;	return (__force __wsum)result;
+;}
+;
+ENTRY(csum_partial)
+	   MV	   .L1X    B3,A9
+||	   CALLP   .S2	   do_csum,B3
+||	   MV	   .S1	   A6,A8
+	   BNOP    .S2X    A9,2
+	   ADD	   .L1	   A8,A4,A1
+	   CMPGTU  .L1	   A8,A1,A0
+	   ADD	   .L1	   A1,A0,A4
+ENDPROC(csum_partial)
+
+;unsigned short
+;ip_compute_csum(unsigned char *buff, unsigned int len)
+;
+; A4:	buff
+; B4:	len
+; return checksum in A4
+
+ENTRY(ip_compute_csum)
+	   MV	   .L1X    B3,A9
+||	   CALLP   .S2	   do_csum,B3
+	   BNOP    .S2X    A9,3
+	   NOT	   .S1	   A4,A4
+	   CLR     .S1	   A4,16,31,A4
+ENDPROC(ip_compute_csum)
diff --git a/arch/c6x/lib/divi.S b/arch/c6x/lib/divi.S
new file mode 100644
index 000000000000..4bde924f2a98
--- /dev/null
+++ b/arch/c6x/lib/divi.S
@@ -0,0 +1,53 @@
+;;  Copyright 2010  Free Software Foundation, Inc.
+;;  Contributed by Bernd Schmidt <bernds@codesourcery.com>.
+;;
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 2 of the License, or
+;; (at your option) any later version.
+;;
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+;;
+;; You should have received a copy of the GNU General Public License
+;; along with this program; if not, write to the Free Software
+;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+#include <linux/linkage.h>
+
+	;; ABI considerations for the divide functions
+	;; The following registers are call-used:
+	;; __c6xabi_divi A0,A1,A2,A4,A6,B0,B1,B2,B4,B5
+	;; __c6xabi_divu A0,A1,A2,A4,A6,B0,B1,B2,B4
+	;; __c6xabi_remi A1,A2,A4,A5,A6,B0,B1,B2,B4
+	;; __c6xabi_remu A1,A4,A5,A7,B0,B1,B2,B4
+	;;
+	;; In our implementation, divu and remu are leaf functions,
+	;; while both divi and remi call into divu.
+	;; A0 is not clobbered by any of the functions.
+	;; divu does not clobber B2 either, which is taken advantage of
+	;; in remi.
+	;; divi uses B5 to hold the original return address during
+	;; the call to divu.
+	;; remi uses B2 and A5 to hold the input values during the
+	;; call to divu.  It stores B3 in on the stack.
+
+	.text
+ENTRY(__c6xabi_divi)
+	call	.s2	__c6xabi_divu
+||	mv	.d2	B3, B5
+||	cmpgt	.l1	0, A4, A1
+||	cmpgt	.l2	0, B4, B1
+
+   [A1]	neg	.l1	A4, A4
+|| [B1]	neg	.l2	B4, B4
+||	xor	.s1x	A1, B1, A1
+   [A1] addkpc	.s2	_divu_ret, B3, 4
+_divu_ret:
+	neg	.l1	A4, A4
+||	mv	.l2	B3,B5
+||	ret	.s2	B5
+	nop		5
+ENDPROC(__c6xabi_divi)
diff --git a/arch/c6x/lib/divremi.S b/arch/c6x/lib/divremi.S
new file mode 100644
index 000000000000..64bc5aa95ad3
--- /dev/null
+++ b/arch/c6x/lib/divremi.S
@@ -0,0 +1,46 @@
+;;  Copyright 2010  Free Software Foundation, Inc.
+;;  Contributed by Bernd Schmidt <bernds@codesourcery.com>.
+;;
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 2 of the License, or
+;; (at your option) any later version.
+;;
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+;;
+;; You should have received a copy of the GNU General Public License
+;; along with this program; if not, write to the Free Software
+;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+#include <linux/linkage.h>
+
+	.text
+ENTRY(__c6xabi_divremi)
+	stw	.d2t2	B3, *B15--[2]
+||	cmpgt	.l1	0, A4, A1
+||	cmpgt	.l2	0, B4, B2
+||	mv	.s1	A4, A5
+||	call	.s2	__c6xabi_divu
+
+   [A1]	neg	.l1	A4, A4
+|| [B2]	neg	.l2	B4, B4
+||	xor	.s2x	B2, A1, B0
+||	mv	.d2	B4, B2
+
+   [B0]	addkpc	.s2	_divu_ret_1, B3, 1
+  [!B0] addkpc	.s2	_divu_ret_2, B3, 1
+	nop	2
+_divu_ret_1:
+	neg	.l1	A4, A4
+_divu_ret_2:
+	ldw	.d2t2	*++B15[2], B3
+
+	mpy32	.m1x	A4, B2, A6
+	nop		3
+	ret	.s2	B3
+	sub	.l1	A5, A6, A5
+	nop	4
+ENDPROC(__c6xabi_divremi)
diff --git a/arch/c6x/lib/divremu.S b/arch/c6x/lib/divremu.S
new file mode 100644
index 000000000000..caa9f23ee167
--- /dev/null
+++ b/arch/c6x/lib/divremu.S
@@ -0,0 +1,87 @@
+;;  Copyright 2011  Free Software Foundation, Inc.
+;;  Contributed by Bernd Schmidt <bernds@codesourcery.com>.
+;;
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 2 of the License, or
+;; (at your option) any later version.
+;;
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+;;
+;; You should have received a copy of the GNU General Public License
+;; along with this program; if not, write to the Free Software
+;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+#include <linux/linkage.h>
+
+	.text
+ENTRY(__c6xabi_divremu)
+	;; We use a series of up to 31 subc instructions.  First, we find
+	;; out how many leading zero bits there are in the divisor.  This
+	;; gives us both a shift count for aligning (shifting) the divisor
+	;; to the, and the number of times we have to execute subc.
+
+	;; At the end, we have both the remainder and most of the quotient
+	;; in A4.  The top bit of the quotient is computed first and is
+	;; placed in A2.
+
+	;; Return immediately if the dividend is zero.	Setting B4 to 1
+	;; is a trick to allow us to leave the following insns in the jump
+	;; delay slot without affecting the result.
+	mv	.s2x	A4, B1
+
+  [b1]	lmbd	.l2	1, B4, B1
+||[!b1] b	.s2	B3	; RETURN A
+||[!b1] mvk	.d2	1, B4
+
+||[!b1] zero	.s1	A5
+	mv	.l1x	B1, A6
+||	shl	.s2	B4, B1, B4
+
+	;; The loop performs a maximum of 28 steps, so we do the
+	;; first 3 here.
+	cmpltu	.l1x	A4, B4, A2
+  [!A2]	sub	.l1x	A4, B4, A4
+||	shru	.s2	B4, 1, B4
+||	xor	.s1	1, A2, A2
+
+	shl	.s1	A2, 31, A2
+|| [b1]	subc	.l1x	A4,B4,A4
+|| [b1]	add	.s2	-1, B1, B1
+   [b1]	subc	.l1x	A4,B4,A4
+|| [b1]	add	.s2	-1, B1, B1
+
+	;; RETURN A may happen here (note: must happen before the next branch)
+__divremu0:
+	cmpgt	.l2	B1, 7, B0
+|| [b1]	subc	.l1x	A4,B4,A4
+|| [b1]	add	.s2	-1, B1, B1
+   [b1]	subc	.l1x	A4,B4,A4
+|| [b1]	add	.s2	-1, B1, B1
+|| [b0] b	.s1	__divremu0
+   [b1]	subc	.l1x	A4,B4,A4
+|| [b1]	add	.s2	-1, B1, B1
+   [b1]	subc	.l1x	A4,B4,A4
+|| [b1]	add	.s2	-1, B1, B1
+   [b1]	subc	.l1x	A4,B4,A4
+|| [b1]	add	.s2	-1, B1, B1
+   [b1]	subc	.l1x	A4,B4,A4
+|| [b1]	add	.s2	-1, B1, B1
+   [b1]	subc	.l1x	A4,B4,A4
+|| [b1]	add	.s2	-1, B1, B1
+	;; loop backwards branch happens here
+
+	ret	.s2	B3
+||	mvk	.s1	32, A1
+	sub	.l1	A1, A6, A6
+||	extu	.s1	A4, A6, A5
+	shl	.s1	A4, A6, A4
+	shru	.s1	A4, 1, A4
+||	sub	.l1	A6, 1, A6
+	or	.l1	A2, A4, A4
+	shru	.s1	A4, A6, A4
+	nop
+ENDPROC(__c6xabi_divremu)
diff --git a/arch/c6x/lib/divu.S b/arch/c6x/lib/divu.S
new file mode 100644
index 000000000000..64af3c006dd3
--- /dev/null
+++ b/arch/c6x/lib/divu.S
@@ -0,0 +1,98 @@
+;;  Copyright 2010  Free Software Foundation, Inc.
+;;  Contributed by Bernd Schmidt <bernds@codesourcery.com>.
+;;
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 2 of the License, or
+;; (at your option) any later version.
+;;
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+;;
+;; You should have received a copy of the GNU General Public License
+;; along with this program; if not, write to the Free Software
+;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+#include <linux/linkage.h>
+
+	;; ABI considerations for the divide functions
+	;; The following registers are call-used:
+	;; __c6xabi_divi A0,A1,A2,A4,A6,B0,B1,B2,B4,B5
+	;; __c6xabi_divu A0,A1,A2,A4,A6,B0,B1,B2,B4
+	;; __c6xabi_remi A1,A2,A4,A5,A6,B0,B1,B2,B4
+	;; __c6xabi_remu A1,A4,A5,A7,B0,B1,B2,B4
+	;;
+	;; In our implementation, divu and remu are leaf functions,
+	;; while both divi and remi call into divu.
+	;; A0 is not clobbered by any of the functions.
+	;; divu does not clobber B2 either, which is taken advantage of
+	;; in remi.
+	;; divi uses B5 to hold the original return address during
+	;; the call to divu.
+	;; remi uses B2 and A5 to hold the input values during the
+	;; call to divu.  It stores B3 in on the stack.
+
+	.text
+ENTRY(__c6xabi_divu)
+	;; We use a series of up to 31 subc instructions.  First, we find
+	;; out how many leading zero bits there are in the divisor.  This
+	;; gives us both a shift count for aligning (shifting) the divisor
+	;; to the, and the number of times we have to execute subc.
+
+	;; At the end, we have both the remainder and most of the quotient
+	;; in A4.  The top bit of the quotient is computed first and is
+	;; placed in A2.
+
+	;; Return immediately if the dividend is zero.
+	 mv	.s2x	A4, B1
+   [B1]	 lmbd	.l2	1, B4, B1
+|| [!B1] b	.s2	B3	; RETURN A
+|| [!B1] mvk	.d2	1, B4
+	 mv	.l1x	B1, A6
+||	 shl	.s2	B4, B1, B4
+
+	;; The loop performs a maximum of 28 steps, so we do the
+	;; first 3 here.
+	 cmpltu	.l1x	A4, B4, A2
+   [!A2] sub	.l1x	A4, B4, A4
+||	 shru	.s2	B4, 1, B4
+||	 xor	.s1	1, A2, A2
+
+	 shl	.s1	A2, 31, A2
+|| [B1]	 subc	.l1x	A4,B4,A4
+|| [B1]	 add	.s2	-1, B1, B1
+   [B1]	 subc	.l1x	A4,B4,A4
+|| [B1]	 add	.s2	-1, B1, B1
+
+	;; RETURN A may happen here (note: must happen before the next branch)
+_divu_loop:
+	 cmpgt	.l2	B1, 7, B0
+|| [B1]	 subc	.l1x	A4,B4,A4
+|| [B1]	 add	.s2	-1, B1, B1
+   [B1]	 subc	.l1x	A4,B4,A4
+|| [B1]	 add	.s2	-1, B1, B1
+|| [B0]  b	.s1	_divu_loop
+   [B1]	 subc	.l1x	A4,B4,A4
+|| [B1]	 add	.s2	-1, B1, B1
+   [B1]	 subc	.l1x	A4,B4,A4
+|| [B1]	 add	.s2	-1, B1, B1
+   [B1]	 subc	.l1x	A4,B4,A4
+|| [B1]	 add	.s2	-1, B1, B1
+   [B1]	 subc	.l1x	A4,B4,A4
+|| [B1]	 add	.s2	-1, B1, B1
+   [B1]	 subc	.l1x	A4,B4,A4
+|| [B1]	 add	.s2	-1, B1, B1
+	;; loop backwards branch happens here
+
+	 ret	.s2	B3
+||	 mvk	.s1	32, A1
+	 sub	.l1	A1, A6, A6
+	 shl	.s1	A4, A6, A4
+	 shru	.s1	A4, 1, A4
+||	 sub	.l1	A6, 1, A6
+	 or	.l1	A2, A4, A4
+	 shru	.s1	A4, A6, A4
+	 nop
+ENDPROC(__c6xabi_divu)
diff --git a/arch/c6x/lib/llshl.S b/arch/c6x/lib/llshl.S
new file mode 100644
index 000000000000..7b105e2d1b78
--- /dev/null
+++ b/arch/c6x/lib/llshl.S
@@ -0,0 +1,37 @@
+;;  Copyright (C) 2010 Texas Instruments Incorporated
+;;  Contributed by Mark Salter <msalter@redhat.com>.
+;;
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 2 of the License, or
+;; (at your option) any later version.
+;;
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+;;
+;; You should have received a copy of the GNU General Public License
+;; along with this program; if not, write to the Free Software
+;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+;;  uint64_t __c6xabi_llshl(uint64_t val, uint shift)
+
+#include <linux/linkage.h>
+
+	.text
+ENTRY(__c6xabi_llshl)
+	 mv	.l1x	B4,A1
+   [!A1] b	.s2	B3		; just return if zero shift
+	 mvk	.s1	32,A0
+	 sub	.d1	A0,A1,A0
+	 cmplt	.l1	0,A0,A2
+   [A2]	 shru	.s1	A4,A0,A0
+   [!A2] neg	.l1	A0,A5
+|| [A2]  shl	.s1	A5,A1,A5
+   [!A2] shl	.s1	A4,A5,A5
+|| [A2]  or	.d1	A5,A0,A5
+|| [!A2] mvk	.l1	0,A4
+   [A2]	 shl	.s1	A4,A1,A4
+	 bnop	.s2	B3,5
+ENDPROC(__c6xabi_llshl)
diff --git a/arch/c6x/lib/llshr.S b/arch/c6x/lib/llshr.S
new file mode 100644
index 000000000000..fde1bec7cf5a
--- /dev/null
+++ b/arch/c6x/lib/llshr.S
@@ -0,0 +1,38 @@
+;;  Copyright (C) 2010 Texas Instruments Incorporated
+;;  Contributed by Mark Salter <msalter@redhat.com>.
+;;
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 2 of the License, or
+;; (at your option) any later version.
+;;
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+;;
+;; You should have received a copy of the GNU General Public License
+;; along with this program; if not, write to the Free Software
+;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+;;  uint64_t __c6xabi_llshr(uint64_t val, uint shift)
+
+#include <linux/linkage.h>
+
+	.text
+ENTRY(__c6xabi_llshr)
+	 mv	.l1x	B4,A1
+   [!A1] b	.s2	B3		; return if zero shift count
+	 mvk	.s1	32,A0
+	 sub	.d1	A0,A1,A0
+	 cmplt	.l1	0,A0,A2
+   [A2]  shl	.s1	A5,A0,A0
+	 nop
+   [!A2] neg	.l1	A0,A4
+|| [A2]  shru	.s1	A4,A1,A4
+   [!A2] shr	.s1	A5,A4,A4
+|| [A2]  or	.d1	A4,A0,A4
+   [!A2] shr	.s1	A5,0x1f,A5
+   [A2]  shr	.s1	A5,A1,A5
+	 bnop	.s2	B3,5
+ENDPROC(__c6xabi_llshr)
diff --git a/arch/c6x/lib/llshru.S b/arch/c6x/lib/llshru.S
new file mode 100644
index 000000000000..596ae3ff5c0f
--- /dev/null
+++ b/arch/c6x/lib/llshru.S
@@ -0,0 +1,38 @@
+;;  Copyright (C) 2010 Texas Instruments Incorporated
+;;  Contributed by Mark Salter <msalter@redhat.com>.
+;;
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 2 of the License, or
+;; (at your option) any later version.
+;;
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+;;
+;; You should have received a copy of the GNU General Public License
+;; along with this program; if not, write to the Free Software
+;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+;;  uint64_t __c6xabi_llshru(uint64_t val, uint shift)
+
+#include <linux/linkage.h>
+
+	.text
+ENTRY(__c6xabi_llshru)
+	 mv	.l1x	B4,A1
+   [!A1] b	.s2	B3		; return if zero shift count
+	 mvk	.s1	32,A0
+	 sub	.d1	A0,A1,A0
+	 cmplt	.l1	0,A0,A2
+   [A2]  shl	.s1	A5,A0,A0
+	 nop
+   [!A2] neg	.l1	A0,A4
+|| [A2]  shru	.s1	A4,A1,A4
+   [!A2] shru	.s1	A5,A4,A4
+|| [A2]  or	.d1	A4,A0,A4
+|| [!A2] mvk	.l1	0,A5
+   [A2]  shru	.s1	A5,A1,A5
+	 bnop	.s2	B3,5
+ENDPROC(__c6xabi_llshru)
diff --git a/arch/c6x/lib/memcpy_64plus.S b/arch/c6x/lib/memcpy_64plus.S
new file mode 100644
index 000000000000..0bbc2cbf9318
--- /dev/null
+++ b/arch/c6x/lib/memcpy_64plus.S
@@ -0,0 +1,46 @@
+;  Port on Texas Instruments TMS320C6x architecture
+;
+;  Copyright (C) 2006, 2009, 2010 Texas Instruments Incorporated
+;  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+;
+;  This program is free software; you can redistribute it and/or modify
+;  it under the terms of the GNU General Public License version 2 as
+;  published by the Free Software Foundation.
+;
+
+#include <linux/linkage.h>
+
+	.text
+
+ENTRY(memcpy)
+	AND	.L1	0x1,A6,A0
+ ||	AND	.S1	0x2,A6,A1
+ ||	AND	.L2X	0x4,A6,B0
+ ||	MV	.D1	A4,A3
+ ||	MVC	.S2	ILC,B2
+
+   [A0] LDB	.D2T1	*B4++,A5
+   [A1] LDB	.D2T1	*B4++,A7
+   [A1] LDB	.D2T1	*B4++,A8
+   [B0] LDNW	.D2T1	*B4++,A9
+ ||	SHRU	.S2X	A6,0x3,B1
+  [!B1] BNOP	.S2	B3,1
+
+   [A0] STB	.D1T1	A5,*A3++
+ ||[B1] MVC	.S2	B1,ILC
+   [A1] STB	.D1T1	A7,*A3++
+   [A1] STB	.D1T1	A8,*A3++
+   [B0] STNW	.D1T1	A9,*A3++	; return when len < 8
+
+	SPLOOP	2
+
+	LDNDW	.D2T1	*B4++,A9:A8
+	NOP	3
+
+	NOP
+	SPKERNEL	0,0
+ ||	STNDW	.D1T1	A9:A8,*A3++
+
+	BNOP	.S2	B3,4
+	MVC	.S2	B2,ILC
+ENDPROC(memcpy)
diff --git a/arch/c6x/lib/mpyll.S b/arch/c6x/lib/mpyll.S
new file mode 100644
index 000000000000..f1034418b4db
--- /dev/null
+++ b/arch/c6x/lib/mpyll.S
@@ -0,0 +1,49 @@
+;;  Copyright (C) 2010 Texas Instruments Incorporated
+;;  Contributed by Mark Salter <msalter@redhat.com>.
+;;
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 2 of the License, or
+;; (at your option) any later version.
+;;
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+;;
+;; You should have received a copy of the GNU General Public License
+;; along with this program; if not, write to the Free Software
+;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+#include <linux/linkage.h>
+
+	;; uint64_t __c6xabi_mpyll(uint64_t x, uint64_t y)
+	;;
+	;; 64x64 multiply
+	;; First compute partial results using 32-bit parts of x and y:
+	;;
+	;;   b63	 b32 b31	  b0
+	;;    -----------------------------
+	;;    |      1	    |	   0	  |
+	;;    -----------------------------
+	;;
+	;;   P0 = X0*Y0
+	;;   P1 = X0*Y1 + X1*Y0
+	;;   P2 = X1*Y1
+	;;
+	;;   result = (P2 << 64) + (P1 << 32) + P0
+	;;
+	;; Since the result is also 64-bit, we can skip the P2 term.
+
+	.text
+ENTRY(__c6xabi_mpyll)
+	mpy32u	.m1x	A4,B4,A1:A0	; X0*Y0
+	b	.s2	B3
+ ||	mpy32u	.m2x	B5,A4,B1:B0	; X0*Y1 (don't need upper 32-bits)
+ ||	mpy32u	.m1x	A5,B4,A3:A2	; X1*Y0 (don't need upper 32-bits)
+	nop
+	nop
+	mv	.s1	A0,A4
+	add	.l1x	A2,B0,A5
+	add	.s1	A1,A5,A5
+ENDPROC(__c6xabi_mpyll)
diff --git a/arch/c6x/lib/negll.S b/arch/c6x/lib/negll.S
new file mode 100644
index 000000000000..82f4bcec9afb
--- /dev/null
+++ b/arch/c6x/lib/negll.S
@@ -0,0 +1,31 @@
+;;  Copyright (C) 2010 Texas Instruments Incorporated
+;;  Contributed by Mark Salter <msalter@redhat.com>.
+;;
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 2 of the License, or
+;; (at your option) any later version.
+;;
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+;;
+;; You should have received a copy of the GNU General Public License
+;; along with this program; if not, write to the Free Software
+;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+;;  int64_t __c6xabi_negll(int64_t val)
+
+#include <linux/linkage.h>
+
+	.text
+ENTRY(__c6xabi_negll)
+	b	.s2	B3
+	mvk	.l1	0,A0
+	subu	.l1	A0,A4,A3:A2
+	sub	.l1	A0,A5,A0
+||	ext	.s1	A3,24,24,A5
+	add	.l1	A5,A0,A5
+	mv	.s1	A2,A4
+ENDPROC(__c6xabi_negll)
diff --git a/arch/c6x/lib/pop_rts.S b/arch/c6x/lib/pop_rts.S
new file mode 100644
index 000000000000..d7d96c70e9e7
--- /dev/null
+++ b/arch/c6x/lib/pop_rts.S
@@ -0,0 +1,32 @@
+;;  Copyright 2010  Free Software Foundation, Inc.
+;;  Contributed by Bernd Schmidt <bernds@codesourcery.com>.
+;;
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 2 of the License, or
+;; (at your option) any later version.
+;;
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+;;
+;; You should have received a copy of the GNU General Public License
+;; along with this program; if not, write to the Free Software
+;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+#include <linux/linkage.h>
+
+	.text
+
+ENTRY(__c6xabi_pop_rts)
+	lddw	.d2t2	*++B15, B3:B2
+	lddw	.d2t1	*++B15, A11:A10
+	lddw	.d2t2	*++B15, B11:B10
+	lddw	.d2t1	*++B15, A13:A12
+	lddw	.d2t2	*++B15, B13:B12
+	lddw	.d2t1	*++B15, A15:A14
+||	b	.s2	B3
+	ldw	.d2t2	*++B15[2], B14
+	nop	4
+ENDPROC(__c6xabi_pop_rts)
diff --git a/arch/c6x/lib/push_rts.S b/arch/c6x/lib/push_rts.S
new file mode 100644
index 000000000000..f6e3db3b6065
--- /dev/null
+++ b/arch/c6x/lib/push_rts.S
@@ -0,0 +1,31 @@
+;;  Copyright 2010  Free Software Foundation, Inc.
+;;  Contributed by Bernd Schmidt <bernds@codesourcery.com>.
+;;
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 2 of the License, or
+;; (at your option) any later version.
+;;
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+;;
+;; You should have received a copy of the GNU General Public License
+;; along with this program; if not, write to the Free Software
+;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+#include <linux/linkage.h>
+
+	.text
+
+ENTRY(__c6xabi_push_rts)
+	stw	.d2t2	B14, *B15--[2]
+	stdw	.d2t1	A15:A14, *B15--
+||	b	.s2x	A3
+	stdw	.d2t2	B13:B12, *B15--
+	stdw	.d2t1	A13:A12, *B15--
+	stdw	.d2t2	B11:B10, *B15--
+	stdw	.d2t1	A11:A10, *B15--
+	stdw	.d2t2	B3:B2, *B15--
+ENDPROC(__c6xabi_push_rts)
diff --git a/arch/c6x/lib/remi.S b/arch/c6x/lib/remi.S
new file mode 100644
index 000000000000..6f2ca18c3f98
--- /dev/null
+++ b/arch/c6x/lib/remi.S
@@ -0,0 +1,64 @@
+;;  Copyright 2010  Free Software Foundation, Inc.
+;;  Contributed by Bernd Schmidt <bernds@codesourcery.com>.
+;;
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 2 of the License, or
+;; (at your option) any later version.
+;;
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+;;
+;; You should have received a copy of the GNU General Public License
+;; along with this program; if not, write to the Free Software
+;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+#include <linux/linkage.h>
+
+	;; ABI considerations for the divide functions
+	;; The following registers are call-used:
+	;; __c6xabi_divi A0,A1,A2,A4,A6,B0,B1,B2,B4,B5
+	;; __c6xabi_divu A0,A1,A2,A4,A6,B0,B1,B2,B4
+	;; __c6xabi_remi A1,A2,A4,A5,A6,B0,B1,B2,B4
+	;; __c6xabi_remu A1,A4,A5,A7,B0,B1,B2,B4
+	;;
+	;; In our implementation, divu and remu are leaf functions,
+	;; while both divi and remi call into divu.
+	;; A0 is not clobbered by any of the functions.
+	;; divu does not clobber B2 either, which is taken advantage of
+	;; in remi.
+	;; divi uses B5 to hold the original return address during
+	;; the call to divu.
+	;; remi uses B2 and A5 to hold the input values during the
+	;; call to divu.  It stores B3 in on the stack.
+
+	.text
+
+ENTRY(__c6xabi_remi)
+	stw	.d2t2	B3, *B15--[2]
+||	cmpgt	.l1	0, A4, A1
+||	cmpgt	.l2	0, B4, B2
+||	mv	.s1	A4, A5
+||	call	.s2	__c6xabi_divu
+
+   [A1]	neg	.l1	A4, A4
+|| [B2]	neg	.l2	B4, B4
+||	xor	.s2x	B2, A1, B0
+||	mv	.d2	B4, B2
+
+   [B0]	addkpc	.s2	_divu_ret_1, B3, 1
+  [!B0] addkpc	.s2	_divu_ret_2, B3, 1
+	nop	2
+_divu_ret_1:
+	neg	.l1	A4, A4
+_divu_ret_2:
+	ldw	.d2t2	*++B15[2], B3
+
+	mpy32	.m1x	A4, B2, A6
+	nop		3
+	ret	.s2	B3
+	sub	.l1	A5, A6, A4
+	nop	4
+ENDPROC(__c6xabi_remi)
diff --git a/arch/c6x/lib/remu.S b/arch/c6x/lib/remu.S
new file mode 100644
index 000000000000..3fae719185ab
--- /dev/null
+++ b/arch/c6x/lib/remu.S
@@ -0,0 +1,82 @@
+;;  Copyright 2010  Free Software Foundation, Inc.
+;;  Contributed by Bernd Schmidt <bernds@codesourcery.com>.
+;;
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 2 of the License, or
+;; (at your option) any later version.
+;;
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+;;
+;; You should have received a copy of the GNU General Public License
+;; along with this program; if not, write to the Free Software
+;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+#include <linux/linkage.h>
+
+	;; ABI considerations for the divide functions
+	;; The following registers are call-used:
+	;; __c6xabi_divi A0,A1,A2,A4,A6,B0,B1,B2,B4,B5
+	;; __c6xabi_divu A0,A1,A2,A4,A6,B0,B1,B2,B4
+	;; __c6xabi_remi A1,A2,A4,A5,A6,B0,B1,B2,B4
+	;; __c6xabi_remu A1,A4,A5,A7,B0,B1,B2,B4
+	;;
+	;; In our implementation, divu and remu are leaf functions,
+	;; while both divi and remi call into divu.
+	;; A0 is not clobbered by any of the functions.
+	;; divu does not clobber B2 either, which is taken advantage of
+	;; in remi.
+	;; divi uses B5 to hold the original return address during
+	;; the call to divu.
+	;; remi uses B2 and A5 to hold the input values during the
+	;; call to divu.  It stores B3 in on the stack.
+
+
+	.text
+
+ENTRY(__c6xabi_remu)
+	;; The ABI seems designed to prevent these functions calling each other,
+	;; so we duplicate most of the divsi3 code here.
+	 mv	.s2x	A4, B1
+	 lmbd	.l2	1, B4, B1
+|| [!B1] b	.s2	B3	; RETURN A
+|| [!B1] mvk	.d2	1, B4
+
+	 mv	.l1x	B1, A7
+||	 shl	.s2	B4, B1, B4
+
+	 cmpltu	.l1x	A4, B4, A1
+   [!A1] sub	.l1x	A4, B4, A4
+	 shru	.s2	B4, 1, B4
+
+_remu_loop:
+	 cmpgt	.l2	B1, 7, B0
+|| [B1]	 subc	.l1x	A4,B4,A4
+|| [B1]	 add	.s2	-1, B1, B1
+	;; RETURN A may happen here (note: must happen before the next branch)
+   [B1]	 subc	.l1x	A4,B4,A4
+|| [B1]	 add	.s2	-1, B1, B1
+|| [B0]	 b	.s1	_remu_loop
+   [B1]	 subc	.l1x	A4,B4,A4
+|| [B1]	 add	.s2	-1, B1, B1
+   [B1]	 subc	.l1x	A4,B4,A4
+|| [B1]	 add	.s2	-1, B1, B1
+   [B1]	 subc	.l1x	A4,B4,A4
+|| [B1]	 add	.s2	-1, B1, B1
+   [B1]	 subc	.l1x	A4,B4,A4
+|| [B1]	 add	.s2	-1, B1, B1
+   [B1]	 subc	.l1x	A4,B4,A4
+|| [B1]	 add	.s2	-1, B1, B1
+	;; loop backwards branch happens here
+
+	 ret	.s2	B3
+   [B1]	 subc	.l1x	A4,B4,A4
+|| [B1]	 add	.s2	-1, B1, B1
+   [B1]	 subc	.l1x	A4,B4,A4
+
+	 extu	.s1	A4, A7, A4
+	 nop	2
+ENDPROC(__c6xabi_remu)
diff --git a/arch/c6x/lib/strasgi.S b/arch/c6x/lib/strasgi.S
new file mode 100644
index 000000000000..de2740765536
--- /dev/null
+++ b/arch/c6x/lib/strasgi.S
@@ -0,0 +1,89 @@
+;;  Copyright 2010  Free Software Foundation, Inc.
+;;  Contributed by Bernd Schmidt <bernds@codesourcery.com>.
+;;
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 2 of the License, or
+;; (at your option) any later version.
+;;
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+;;
+;; You should have received a copy of the GNU General Public License
+;; along with this program; if not, write to the Free Software
+;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+#include <linux/linkage.h>
+
+	.text
+
+ENTRY(__c6xabi_strasgi)
+	;; This is essentially memcpy, with alignment known to be at least
+	;; 4, and the size a multiple of 4 greater than or equal to 28.
+	 ldw	.d2t1	*B4++, A0
+||	 mvk	.s2	16, B1
+	 ldw	.d2t1	*B4++, A1
+||	 mvk	.s2	20, B2
+||	 sub	.d1	A6, 24, A6
+	 ldw	.d2t1	*B4++, A5
+	 ldw	.d2t1	*B4++, A7
+||	 mv	.l2x	A6, B7
+	 ldw	.d2t1	*B4++, A8
+	 ldw	.d2t1	*B4++, A9
+||	 mv	.s2x	A0, B5
+||	 cmpltu	.l2	B2, B7, B0
+
+_strasgi_loop:
+	 stw	.d1t2	B5, *A4++
+|| [B0]	 ldw	.d2t1	*B4++, A0
+||	 mv	.s2x	A1, B5
+||	 mv	.l2	B7, B6
+
+   [B0]	 sub	.d2	B6, 24, B7
+|| [B0]	 b	.s2	_strasgi_loop
+||	 cmpltu	.l2	B1, B6, B0
+
+   [B0]	 ldw	.d2t1	*B4++, A1
+||	 stw	.d1t2	B5, *A4++
+||	 mv	.s2x	A5, B5
+||	 cmpltu	.l2	12, B6, B0
+
+   [B0]	 ldw	.d2t1	*B4++, A5
+||	 stw	.d1t2	B5, *A4++
+||	 mv	.s2x	A7, B5
+||	 cmpltu	.l2	8, B6, B0
+
+   [B0]	 ldw	.d2t1	*B4++, A7
+||	 stw	.d1t2	B5, *A4++
+||	 mv	.s2x	A8, B5
+||	 cmpltu	.l2	4, B6, B0
+
+   [B0]	 ldw	.d2t1	*B4++, A8
+||	 stw	.d1t2	B5, *A4++
+||	 mv	.s2x	A9, B5
+||	 cmpltu	.l2	0, B6, B0
+
+   [B0]	 ldw	.d2t1	*B4++, A9
+||	 stw	.d1t2	B5, *A4++
+||	 mv	.s2x	A0, B5
+||	 cmpltu	.l2	B2, B7, B0
+
+	;; loop back branch happens here
+
+	 cmpltu	.l2	B1, B6, B0
+||	 ret	.s2	b3
+
+   [B0]	 stw	.d1t1	A1, *A4++
+||	 cmpltu	.l2	12, B6, B0
+   [B0]	 stw	.d1t1	A5, *A4++
+||	 cmpltu	.l2	8, B6, B0
+   [B0]	 stw	.d1t1	A7, *A4++
+||	 cmpltu	.l2	4, B6, B0
+   [B0]	 stw	.d1t1	A8, *A4++
+||	 cmpltu	.l2	0, B6, B0
+   [B0]	 stw	.d1t1	A9, *A4++
+
+	;; return happens here
+ENDPROC(__c6xabi_strasgi)
diff --git a/arch/c6x/lib/strasgi_64plus.S b/arch/c6x/lib/strasgi_64plus.S
new file mode 100644
index 000000000000..c9fd159b5fa2
--- /dev/null
+++ b/arch/c6x/lib/strasgi_64plus.S
@@ -0,0 +1,39 @@
+;;  Copyright 2010  Free Software Foundation, Inc.
+;;  Contributed by Bernd Schmidt <bernds@codesourcery.com>.
+;;
+;; This program is free software; you can redistribute it and/or modify
+;; it under the terms of the GNU General Public License as published by
+;; the Free Software Foundation; either version 2 of the License, or
+;; (at your option) any later version.
+;;
+;; This program is distributed in the hope that it will be useful,
+;; but WITHOUT ANY WARRANTY; without even the implied warranty of
+;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+;; GNU General Public License for more details.
+;;
+;; You should have received a copy of the GNU General Public License
+;; along with this program; if not, write to the Free Software
+;; Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+#include <linux/linkage.h>
+
+	.text
+
+ENTRY(__c6xabi_strasgi_64plus)
+	shru	.s2x	a6, 2, b31
+||	mv	.s1	a4, a30
+||	mv	.d2	b4, b30
+
+	add	.s2	-4, b31, b31
+
+	sploopd		1
+||	mvc	.s2	b31, ilc
+	ldw	.d2t2	*b30++, b31
+	nop	4
+	mv	.s1x	b31,a31
+	spkernel	6, 0
+||	stw	.d1t1	a31, *a30++
+
+	ret	.s2	b3
+	nop 5
+ENDPROC(__c6xabi_strasgi_64plus)
diff --git a/arch/c6x/mm/Makefile b/arch/c6x/mm/Makefile
new file mode 100644
index 000000000000..136a97576c61
--- /dev/null
+++ b/arch/c6x/mm/Makefile
@@ -0,0 +1,5 @@
+#
+# Makefile for the linux c6x-specific parts of the memory manager.
+#
+
+obj-y := init.o dma-coherent.o
diff --git a/arch/c6x/mm/dma-coherent.c b/arch/c6x/mm/dma-coherent.c
new file mode 100644
index 000000000000..4187e5180373
--- /dev/null
+++ b/arch/c6x/mm/dma-coherent.c
@@ -0,0 +1,143 @@
+/*
+ *  Port on Texas Instruments TMS320C6x architecture
+ *
+ *  Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated
+ *  Author: Aurelien Jacquiot <aurelien.jacquiot@ti.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ *
+ *  DMA uncached mapping support.
+ *
+ *  Using code pulled from ARM
+ *  Copyright (C) 2000-2004 Russell King
+ *
+ */
+#include <linux/slab.h>
+#include <linux/bitmap.h>
+#include <linux/bitops.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/dma-mapping.h>
+#include <linux/memblock.h>
+
+#include <asm/page.h>
+
+/*
+ * DMA coherent memory management, can be redefined using the memdma=
+ * kernel command line
+ */
+
+/* none by default */
+static phys_addr_t dma_base;
+static u32 dma_size;
+static u32 dma_pages;
+
+static unsigned long *dma_bitmap;
+
+/* bitmap lock */
+static DEFINE_SPINLOCK(dma_lock);
+
+/*
+ * Return a DMA coherent and contiguous memory chunk from the DMA memory
+ */
+static inline u32 __alloc_dma_pages(int order)
+{
+	unsigned long flags;
+	u32 pos;
+
+	spin_lock_irqsave(&dma_lock, flags);
+	pos = bitmap_find_free_region(dma_bitmap, dma_pages, order);
+	spin_unlock_irqrestore(&dma_lock, flags);
+
+	return dma_base + (pos << PAGE_SHIFT);
+}
+
+static void __free_dma_pages(u32 addr, int order)
+{
+	unsigned long flags;
+	u32 pos = (addr - dma_base) >> PAGE_SHIFT;
+
+	if (addr < dma_base || (pos + (1 << order)) >= dma_pages) {
+		printk(KERN_ERR "%s: freeing outside range.\n", __func__);
+		BUG();
+	}
+
+	spin_lock_irqsave(&dma_lock, flags);
+	bitmap_release_region(dma_bitmap, pos, order);
+	spin_unlock_irqrestore(&dma_lock, flags);
+}
+
+/*
+ * Allocate DMA coherent memory space and return both the kernel
+ * virtual and DMA address for that space.
+ */
+void *dma_alloc_coherent(struct device *dev, size_t size,
+			 dma_addr_t *handle, gfp_t gfp)
+{
+	u32 paddr;
+	int order;
+
+	if (!dma_size || !size)
+		return NULL;
+
+	order = get_count_order(((size - 1) >> PAGE_SHIFT) + 1);
+
+	paddr = __alloc_dma_pages(order);
+
+	if (handle)
+		*handle = paddr;
+
+	if (!paddr)
+		return NULL;
+
+	return phys_to_virt(paddr);
+}
+EXPORT_SYMBOL(dma_alloc_coherent);
+
+/*
+ * Free DMA coherent memory as defined by the above mapping.
+ */
+void dma_free_coherent(struct device *dev, size_t size, void *vaddr,
+		       dma_addr_t dma_handle)
+{
+	int order;
+
+	if (!dma_size || !size)
+		return;
+
+	order = get_count_order(((size - 1) >> PAGE_SHIFT) + 1);
+
+	__free_dma_pages(virt_to_phys(vaddr), order);
+}
+EXPORT_SYMBOL(dma_free_coherent);
+
+/*
+ * Initialise the coherent DMA memory allocator using the given uncached region.
+ */
+void __init coherent_mem_init(phys_addr_t start, u32 size)
+{
+	phys_addr_t bitmap_phys;
+
+	if (!size)
+		return;
+
+	printk(KERN_INFO
+	       "Coherent memory (DMA) region start=0x%x size=0x%x\n",
+	       start, size);
+
+	dma_base = start;
+	dma_size = size;
+
+	/* allocate bitmap */
+	dma_pages = dma_size >> PAGE_SHIFT;
+	if (dma_size & (PAGE_SIZE - 1))
+		++dma_pages;
+
+	bitmap_phys = memblock_alloc(BITS_TO_LONGS(dma_pages) * sizeof(long),
+				     sizeof(long));
+
+	dma_bitmap = phys_to_virt(bitmap_phys);
+	memset(dma_bitmap, 0, dma_pages * PAGE_SIZE);
+}
diff --git a/arch/c6x/mm/init.c b/arch/c6x/mm/init.c
new file mode 100644
index 000000000000..89395f09648a
--- /dev/null
+++ b/arch/c6x/mm/init.c
@@ -0,0 +1,113 @@
+/*
+ *  Port on Texas Instruments TMS320C6x architecture
+ *
+ *  Copyright (C) 2004, 2009, 2010, 2011 Texas Instruments Incorporated
+ *  Author: Aurelien Jacquiot (aurelien.jacquiot@jaluna.com)
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+#include <linux/mm.h>
+#include <linux/swap.h>
+#include <linux/module.h>
+#include <linux/bootmem.h>
+#ifdef CONFIG_BLK_DEV_RAM
+#include <linux/blkdev.h>
+#endif
+#include <linux/initrd.h>
+
+#include <asm/sections.h>
+
+/*
+ * ZERO_PAGE is a special page that is used for zero-initialized
+ * data and COW.
+ */
+unsigned long empty_zero_page;
+EXPORT_SYMBOL(empty_zero_page);
+
+/*
+ * paging_init() continues the virtual memory environment setup which
+ * was begun by the code in arch/head.S.
+ * The parameters are pointers to where to stick the starting and ending
+ * addresses  of available kernel virtual memory.
+ */
+void __init paging_init(void)
+{
+	struct pglist_data *pgdat = NODE_DATA(0);
+	unsigned long zones_size[MAX_NR_ZONES] = {0, };
+
+	empty_zero_page      = (unsigned long) alloc_bootmem_pages(PAGE_SIZE);
+	memset((void *)empty_zero_page, 0, PAGE_SIZE);
+
+	/*
+	 * Set up user data space
+	 */
+	set_fs(KERNEL_DS);
+
+	/*
+	 * Define zones
+	 */
+	zones_size[ZONE_NORMAL] = (memory_end - PAGE_OFFSET) >> PAGE_SHIFT;
+	pgdat->node_zones[ZONE_NORMAL].zone_start_pfn =
+		__pa(PAGE_OFFSET) >> PAGE_SHIFT;
+
+	free_area_init(zones_size);
+}
+
+void __init mem_init(void)
+{
+	int codek, datak;
+	unsigned long tmp;
+	unsigned long len = memory_end - memory_start;
+
+	high_memory = (void *)(memory_end & PAGE_MASK);
+
+	/* this will put all memory onto the freelists */
+	totalram_pages = free_all_bootmem();
+
+	codek = (_etext - _stext) >> 10;
+	datak = (_end - _sdata) >> 10;
+
+	tmp = nr_free_pages() << PAGE_SHIFT;
+	printk(KERN_INFO "Memory: %luk/%luk RAM (%dk kernel code, %dk data)\n",
+	       tmp >> 10, len >> 10, codek, datak);
+}
+
+#ifdef CONFIG_BLK_DEV_INITRD
+void __init free_initrd_mem(unsigned long start, unsigned long end)
+{
+	int pages = 0;
+	for (; start < end; start += PAGE_SIZE) {
+		ClearPageReserved(virt_to_page(start));
+		init_page_count(virt_to_page(start));
+		free_page(start);
+		totalram_pages++;
+		pages++;
+	}
+	printk(KERN_INFO "Freeing initrd memory: %luk freed\n",
+	       (pages * PAGE_SIZE) >> 10);
+}
+#endif
+
+void __init free_initmem(void)
+{
+	unsigned long addr;
+
+	/*
+	 * The following code should be cool even if these sections
+	 * are not page aligned.
+	 */
+	addr = PAGE_ALIGN((unsigned long)(__init_begin));
+
+	/* next to check that the page we free is not a partial page */
+	for (; addr + PAGE_SIZE < (unsigned long)(__init_end);
+	     addr += PAGE_SIZE) {
+		ClearPageReserved(virt_to_page(addr));
+		init_page_count(virt_to_page(addr));
+		free_page(addr);
+		totalram_pages++;
+	}
+	printk(KERN_INFO "Freeing unused kernel memory: %dK freed\n",
+	       (int) ((addr - PAGE_ALIGN((long) &__init_begin)) >> 10));
+}
diff --git a/arch/c6x/platforms/Kconfig b/arch/c6x/platforms/Kconfig
new file mode 100644
index 000000000000..401ee678fd01
--- /dev/null
+++ b/arch/c6x/platforms/Kconfig
@@ -0,0 +1,16 @@
+
+config SOC_TMS320C6455
+	bool "TMS320C6455"
+	default n
+
+config SOC_TMS320C6457
+	bool "TMS320C6457"
+	default n
+
+config SOC_TMS320C6472
+	bool "TMS320C6472"
+	default n
+
+config SOC_TMS320C6474
+	bool "TMS320C6474"
+	default n
diff --git a/arch/c6x/platforms/Makefile b/arch/c6x/platforms/Makefile
new file mode 100644
index 000000000000..9a95b9bca8d0
--- /dev/null
+++ b/arch/c6x/platforms/Makefile
@@ -0,0 +1,12 @@
+#
+# Makefile for arch/c6x/platforms
+#
+# Copyright 2010, 2011 Texas Instruments Incorporated
+#
+
+obj-y = platform.o cache.o megamod-pic.o pll.o plldata.o timer64.o
+obj-y += dscr.o
+
+# SoC objects
+obj-$(CONFIG_SOC_TMS320C6455)   += emif.o
+obj-$(CONFIG_SOC_TMS320C6457)   += emif.o
diff --git a/arch/c6x/platforms/cache.c b/arch/c6x/platforms/cache.c
new file mode 100644
index 000000000000..86318a16a252
--- /dev/null
+++ b/arch/c6x/platforms/cache.c
@@ -0,0 +1,445 @@
+/*
+ *  Copyright (C) 2011 Texas Instruments Incorporated
+ *  Author: Mark Salter <msalter@redhat.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/io.h>
+
+#include <asm/cache.h>
+#include <asm/soc.h>
+
+/*
+ * Internal Memory Control Registers for caches
+ */
+#define IMCR_CCFG	  0x0000
+#define IMCR_L1PCFG	  0x0020
+#define IMCR_L1PCC	  0x0024
+#define IMCR_L1DCFG	  0x0040
+#define IMCR_L1DCC	  0x0044
+#define IMCR_L2ALLOC0	  0x2000
+#define IMCR_L2ALLOC1	  0x2004
+#define IMCR_L2ALLOC2	  0x2008
+#define IMCR_L2ALLOC3	  0x200c
+#define IMCR_L2WBAR	  0x4000
+#define IMCR_L2WWC	  0x4004
+#define IMCR_L2WIBAR	  0x4010
+#define IMCR_L2WIWC	  0x4014
+#define IMCR_L2IBAR	  0x4018
+#define IMCR_L2IWC	  0x401c
+#define IMCR_L1PIBAR	  0x4020
+#define IMCR_L1PIWC	  0x4024
+#define IMCR_L1DWIBAR	  0x4030
+#define IMCR_L1DWIWC	  0x4034
+#define IMCR_L1DWBAR	  0x4040
+#define IMCR_L1DWWC	  0x4044
+#define IMCR_L1DIBAR	  0x4048
+#define IMCR_L1DIWC	  0x404c
+#define IMCR_L2WB	  0x5000
+#define IMCR_L2WBINV	  0x5004
+#define IMCR_L2INV	  0x5008
+#define IMCR_L1PINV	  0x5028
+#define IMCR_L1DWB	  0x5040
+#define IMCR_L1DWBINV	  0x5044
+#define IMCR_L1DINV	  0x5048
+#define IMCR_MAR_BASE	  0x8000
+#define IMCR_MAR96_111	  0x8180
+#define IMCR_MAR128_191   0x8200
+#define IMCR_MAR224_239   0x8380
+#define IMCR_L2MPFAR	  0xa000
+#define IMCR_L2MPFSR	  0xa004
+#define IMCR_L2MPFCR	  0xa008
+#define IMCR_L2MPLK0	  0xa100
+#define IMCR_L2MPLK1	  0xa104
+#define IMCR_L2MPLK2	  0xa108
+#define IMCR_L2MPLK3	  0xa10c
+#define IMCR_L2MPLKCMD	  0xa110
+#define IMCR_L2MPLKSTAT   0xa114
+#define IMCR_L2MPPA_BASE  0xa200
+#define IMCR_L1PMPFAR	  0xa400
+#define IMCR_L1PMPFSR	  0xa404
+#define IMCR_L1PMPFCR	  0xa408
+#define IMCR_L1PMPLK0	  0xa500
+#define IMCR_L1PMPLK1	  0xa504
+#define IMCR_L1PMPLK2	  0xa508
+#define IMCR_L1PMPLK3	  0xa50c
+#define IMCR_L1PMPLKCMD   0xa510
+#define IMCR_L1PMPLKSTAT  0xa514
+#define IMCR_L1PMPPA_BASE 0xa600
+#define IMCR_L1DMPFAR	  0xac00
+#define IMCR_L1DMPFSR	  0xac04
+#define IMCR_L1DMPFCR	  0xac08
+#define IMCR_L1DMPLK0	  0xad00
+#define IMCR_L1DMPLK1	  0xad04
+#define IMCR_L1DMPLK2	  0xad08
+#define IMCR_L1DMPLK3	  0xad0c
+#define IMCR_L1DMPLKCMD   0xad10
+#define IMCR_L1DMPLKSTAT  0xad14
+#define IMCR_L1DMPPA_BASE 0xae00
+#define IMCR_L2PDWAKE0	  0xc040
+#define IMCR_L2PDWAKE1	  0xc044
+#define IMCR_L2PDSLEEP0   0xc050
+#define IMCR_L2PDSLEEP1   0xc054
+#define IMCR_L2PDSTAT0	  0xc060
+#define IMCR_L2PDSTAT1	  0xc064
+
+/*
+ * CCFG register values and bits
+ */
+#define L2MODE_0K_CACHE   0x0
+#define L2MODE_32K_CACHE  0x1
+#define L2MODE_64K_CACHE  0x2
+#define L2MODE_128K_CACHE 0x3
+#define L2MODE_256K_CACHE 0x7
+
+#define L2PRIO_URGENT     0x0
+#define L2PRIO_HIGH       0x1
+#define L2PRIO_MEDIUM     0x2
+#define L2PRIO_LOW        0x3
+
+#define CCFG_ID           0x100   /* Invalidate L1P bit */
+#define CCFG_IP           0x200   /* Invalidate L1D bit */
+
+static void __iomem *cache_base;
+
+/*
+ * L1 & L2 caches generic functions
+ */
+#define imcr_get(reg) soc_readl(cache_base + (reg))
+#define imcr_set(reg, value) \
+do {								\
+	soc_writel((value), cache_base + (reg));		\
+	soc_readl(cache_base + (reg));				\
+} while (0)
+
+static void cache_block_operation_wait(unsigned int wc_reg)
+{
+	/* Wait for completion */
+	while (imcr_get(wc_reg))
+		cpu_relax();
+}
+
+static DEFINE_SPINLOCK(cache_lock);
+
+/*
+ * Generic function to perform a block cache operation as
+ * invalidate or writeback/invalidate
+ */
+static void cache_block_operation(unsigned int *start,
+				  unsigned int *end,
+				  unsigned int bar_reg,
+				  unsigned int wc_reg)
+{
+	unsigned long flags;
+	unsigned int wcnt =
+		(L2_CACHE_ALIGN_CNT((unsigned int) end)
+		 - L2_CACHE_ALIGN_LOW((unsigned int) start)) >> 2;
+	unsigned int wc = 0;
+
+	for (; wcnt; wcnt -= wc, start += wc) {
+loop:
+		spin_lock_irqsave(&cache_lock, flags);
+
+		/*
+		 * If another cache operation is occuring
+		 */
+		if (unlikely(imcr_get(wc_reg))) {
+			spin_unlock_irqrestore(&cache_lock, flags);
+
+			/* Wait for previous operation completion */
+			cache_block_operation_wait(wc_reg);
+
+			/* Try again */
+			goto loop;
+		}
+
+		imcr_set(bar_reg, L2_CACHE_ALIGN_LOW((unsigned int) start));
+
+		if (wcnt > 0xffff)
+			wc = 0xffff;
+		else
+			wc = wcnt;
+
+		/* Set word count value in the WC register */
+		imcr_set(wc_reg, wc & 0xffff);
+
+		spin_unlock_irqrestore(&cache_lock, flags);
+
+		/* Wait for completion */
+		cache_block_operation_wait(wc_reg);
+	}
+}
+
+static void cache_block_operation_nowait(unsigned int *start,
+					 unsigned int *end,
+					 unsigned int bar_reg,
+					 unsigned int wc_reg)
+{
+	unsigned long flags;
+	unsigned int wcnt =
+		(L2_CACHE_ALIGN_CNT((unsigned int) end)
+		 - L2_CACHE_ALIGN_LOW((unsigned int) start)) >> 2;
+	unsigned int wc = 0;
+
+	for (; wcnt; wcnt -= wc, start += wc) {
+
+		spin_lock_irqsave(&cache_lock, flags);
+
+		imcr_set(bar_reg, L2_CACHE_ALIGN_LOW((unsigned int) start));
+
+		if (wcnt > 0xffff)
+			wc = 0xffff;
+		else
+			wc = wcnt;
+
+		/* Set word count value in the WC register */
+		imcr_set(wc_reg, wc & 0xffff);
+
+		spin_unlock_irqrestore(&cache_lock, flags);
+
+		/* Don't wait for completion on last cache operation */
+		if (wcnt > 0xffff)
+			cache_block_operation_wait(wc_reg);
+	}
+}
+
+/*
+ * L1 caches management
+ */
+
+/*
+ * Disable L1 caches
+ */
+void L1_cache_off(void)
+{
+	unsigned int dummy;
+
+	imcr_set(IMCR_L1PCFG, 0);
+	dummy = imcr_get(IMCR_L1PCFG);
+
+	imcr_set(IMCR_L1DCFG, 0);
+	dummy = imcr_get(IMCR_L1DCFG);
+}
+
+/*
+ * Enable L1 caches
+ */
+void L1_cache_on(void)
+{
+	unsigned int dummy;
+
+	imcr_set(IMCR_L1PCFG, 7);
+	dummy = imcr_get(IMCR_L1PCFG);
+
+	imcr_set(IMCR_L1DCFG, 7);
+	dummy = imcr_get(IMCR_L1DCFG);
+}
+
+/*
+ *  L1P global-invalidate all
+ */
+void L1P_cache_global_invalidate(void)
+{
+	unsigned int set = 1;
+	imcr_set(IMCR_L1PINV, set);
+	while (imcr_get(IMCR_L1PINV) & 1)
+		cpu_relax();
+}
+
+/*
+ *  L1D global-invalidate all
+ *
+ * Warning: this operation causes all updated data in L1D to
+ * be discarded rather than written back to the lower levels of
+ * memory
+ */
+void L1D_cache_global_invalidate(void)
+{
+	unsigned int set = 1;
+	imcr_set(IMCR_L1DINV, set);
+	while (imcr_get(IMCR_L1DINV) & 1)
+		cpu_relax();
+}
+
+void L1D_cache_global_writeback(void)
+{
+	unsigned int set = 1;
+	imcr_set(IMCR_L1DWB, set);
+	while (imcr_get(IMCR_L1DWB) & 1)
+		cpu_relax();
+}
+
+void L1D_cache_global_writeback_invalidate(void)
+{
+	unsigned int set = 1;
+	imcr_set(IMCR_L1DWBINV, set);
+	while (imcr_get(IMCR_L1DWBINV) & 1)
+		cpu_relax();
+}
+
+/*
+ * L2 caches management
+ */
+
+/*
+ * Set L2 operation mode
+ */
+void L2_cache_set_mode(unsigned int mode)
+{
+	unsigned int ccfg = imcr_get(IMCR_CCFG);
+
+	/* Clear and set the L2MODE bits in CCFG */
+	ccfg &= ~7;
+	ccfg |= (mode & 7);
+	imcr_set(IMCR_CCFG, ccfg);
+	ccfg = imcr_get(IMCR_CCFG);
+}
+
+/*
+ *  L2 global-writeback and global-invalidate all
+ */
+void L2_cache_global_writeback_invalidate(void)
+{
+	imcr_set(IMCR_L2WBINV, 1);
+	while (imcr_get(IMCR_L2WBINV))
+		cpu_relax();
+}
+
+/*
+ *  L2 global-writeback all
+ */
+void L2_cache_global_writeback(void)
+{
+	imcr_set(IMCR_L2WB, 1);
+	while (imcr_get(IMCR_L2WB))
+		cpu_relax();
+}
+
+/*
+ * Cacheability controls
+ */
+void enable_caching(unsigned long start, unsigned long end)
+{
+	unsigned int mar = IMCR_MAR_BASE + ((start >> 24) << 2);
+	unsigned int mar_e = IMCR_MAR_BASE + ((end >> 24) << 2);
+
+	for (; mar <= mar_e; mar += 4)
+		imcr_set(mar, imcr_get(mar) | 1);
+}
+
+void disable_caching(unsigned long start, unsigned long end)
+{
+	unsigned int mar = IMCR_MAR_BASE + ((start >> 24) << 2);
+	unsigned int mar_e = IMCR_MAR_BASE + ((end >> 24) << 2);
+
+	for (; mar <= mar_e; mar += 4)
+		imcr_set(mar, imcr_get(mar) & ~1);
+}
+
+
+/*
+ *  L1 block operations
+ */
+void L1P_cache_block_invalidate(unsigned int start, unsigned int end)
+{
+	cache_block_operation((unsigned int *) start,
+			      (unsigned int *) end,
+			      IMCR_L1PIBAR, IMCR_L1PIWC);
+}
+
+void L1D_cache_block_invalidate(unsigned int start, unsigned int end)
+{
+	cache_block_operation((unsigned int *) start,
+			      (unsigned int *) end,
+			      IMCR_L1DIBAR, IMCR_L1DIWC);
+}
+
+void L1D_cache_block_writeback_invalidate(unsigned int start, unsigned int end)
+{
+	cache_block_operation((unsigned int *) start,
+			      (unsigned int *) end,
+			      IMCR_L1DWIBAR, IMCR_L1DWIWC);
+}
+
+void L1D_cache_block_writeback(unsigned int start, unsigned int end)
+{
+	cache_block_operation((unsigned int *) start,
+			      (unsigned int *) end,
+			      IMCR_L1DWBAR, IMCR_L1DWWC);
+}
+
+/*
+ *  L2 block operations
+ */
+void L2_cache_block_invalidate(unsigned int start, unsigned int end)
+{
+	cache_block_operation((unsigned int *) start,
+			      (unsigned int *) end,
+			      IMCR_L2IBAR, IMCR_L2IWC);
+}
+
+void L2_cache_block_writeback(unsigned int start, unsigned int end)
+{
+	cache_block_operation((unsigned int *) start,
+			      (unsigned int *) end,
+			      IMCR_L2WBAR, IMCR_L2WWC);
+}
+
+void L2_cache_block_writeback_invalidate(unsigned int start, unsigned int end)
+{
+	cache_block_operation((unsigned int *) start,
+			      (unsigned int *) end,
+			      IMCR_L2WIBAR, IMCR_L2WIWC);
+}
+
+void L2_cache_block_invalidate_nowait(unsigned int start, unsigned int end)
+{
+	cache_block_operation_nowait((unsigned int *) start,
+				     (unsigned int *) end,
+				     IMCR_L2IBAR, IMCR_L2IWC);
+}
+
+void L2_cache_block_writeback_nowait(unsigned int start, unsigned int end)
+{
+	cache_block_operation_nowait((unsigned int *) start,
+				     (unsigned int *) end,
+				     IMCR_L2WBAR, IMCR_L2WWC);
+}
+
+void L2_cache_block_writeback_invalidate_nowait(unsigned int start,
+						unsigned int end)
+{
+	cache_block_operation_nowait((unsigned int *) start,
+				     (unsigned int *) end,
+				     IMCR_L2WIBAR, IMCR_L2WIWC);
+}
+
+
+/*
+ * L1 and L2 caches configuration
+ */
+void __init c6x_cache_init(void)
+{
+	struct device_node *node;
+
+	node = of_find_compatible_node(NULL, NULL, "ti,c64x+cache");
+	if (!node)
+		return;
+
+	cache_base = of_iomap(node, 0);
+
+	of_node_put(node);
+
+	if (!cache_base)
+		return;
+
+	/* Set L2 caches on the the whole L2 SRAM memory */
+	L2_cache_set_mode(L2MODE_SIZE);
+
+	/* Enable L1 */
+	L1_cache_on();
+}
diff --git a/arch/c6x/platforms/dscr.c b/arch/c6x/platforms/dscr.c
new file mode 100644
index 000000000000..f848a65ee646
--- /dev/null
+++ b/arch/c6x/platforms/dscr.c
@@ -0,0 +1,598 @@
+/*
+ *  Device State Control Registers driver
+ *
+ *  Copyright (C) 2011 Texas Instruments Incorporated
+ *  Author: Mark Salter <msalter@redhat.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+
+/*
+ * The Device State Control Registers (DSCR) provide SoC level control over
+ * a number of peripherals. Details vary considerably among the various SoC
+ * parts. In general, the DSCR block will provide one or more configuration
+ * registers often protected by a lock register. One or more key values must
+ * be written to a lock register in order to unlock the configuration register.
+ * The configuration register may be used to enable (and disable in some
+ * cases) SoC pin drivers, peripheral clock sources (internal or pin), etc.
+ * In some cases, a configuration register is write once or the individual
+ * bits are write once. That is, you may be able to enable a device, but
+ * will not be able to disable it.
+ *
+ * In addition to device configuration, the DSCR block may provide registers
+ * which are used to reset SoC peripherals, provide device ID information,
+ * provide MAC addresses, and other miscellaneous functions.
+ */
+
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_platform.h>
+#include <linux/module.h>
+#include <linux/io.h>
+#include <linux/delay.h>
+#include <asm/soc.h>
+#include <asm/dscr.h>
+
+#define MAX_DEVSTATE_IDS   32
+#define MAX_DEVCTL_REGS     8
+#define MAX_DEVSTAT_REGS    8
+#define MAX_LOCKED_REGS     4
+#define MAX_SOC_EMACS       2
+
+struct rmii_reset_reg {
+	u32 reg;
+	u32 mask;
+};
+
+/*
+ * Some registerd may be locked. In order to write to these
+ * registers, the key value must first be written to the lockreg.
+ */
+struct locked_reg {
+	u32 reg;	/* offset from base */
+	u32 lockreg;	/* offset from base */
+	u32 key;	/* unlock key */
+};
+
+/*
+ * This describes a contiguous area of like control bits used to enable/disable
+ * SoC devices. Each controllable device is given an ID which is used by the
+ * individual device drivers to control the device state. These IDs start at
+ * zero and are assigned sequentially to the control bitfield ranges described
+ * by this structure.
+ */
+struct devstate_ctl_reg {
+	u32 reg;		/* register holding the control bits */
+	u8  start_id;		/* start id of this range */
+	u8  num_ids;		/* number of devices in this range */
+	u8  enable_only;	/* bits are write-once to enable only */
+	u8  enable;		/* value used to enable device */
+	u8  disable;		/* value used to disable device */
+	u8  shift;		/* starting (rightmost) bit in range */
+	u8  nbits;		/* number of bits per device */
+};
+
+
+/*
+ * This describes a region of status bits indicating the state of
+ * various devices. This is used internally to wait for status
+ * change completion when enabling/disabling a device. Status is
+ * optional and not all device controls will have a corresponding
+ * status.
+ */
+struct devstate_stat_reg {
+	u32 reg;		/* register holding the status bits */
+	u8  start_id;		/* start id of this range */
+	u8  num_ids;		/* number of devices in this range */
+	u8  enable;		/* value indicating enabled state */
+	u8  disable;		/* value indicating disabled state */
+	u8  shift;		/* starting (rightmost) bit in range */
+	u8  nbits;		/* number of bits per device */
+};
+
+struct devstate_info {
+	struct devstate_ctl_reg *ctl;
+	struct devstate_stat_reg *stat;
+};
+
+/* These are callbacks to SOC-specific code. */
+struct dscr_ops {
+	void (*init)(struct device_node *node);
+};
+
+struct dscr_regs {
+	spinlock_t		lock;
+	void __iomem		*base;
+	u32			kick_reg[2];
+	u32			kick_key[2];
+	struct locked_reg	locked[MAX_LOCKED_REGS];
+	struct devstate_info	devstate_info[MAX_DEVSTATE_IDS];
+	struct rmii_reset_reg   rmii_resets[MAX_SOC_EMACS];
+	struct devstate_ctl_reg devctl[MAX_DEVCTL_REGS];
+	struct devstate_stat_reg devstat[MAX_DEVSTAT_REGS];
+};
+
+static struct dscr_regs	dscr;
+
+static struct locked_reg *find_locked_reg(u32 reg)
+{
+	int i;
+
+	for (i = 0; i < MAX_LOCKED_REGS; i++)
+		if (dscr.locked[i].key && reg == dscr.locked[i].reg)
+			return &dscr.locked[i];
+	return NULL;
+}
+
+/*
+ * Write to a register with one lock
+ */
+static void dscr_write_locked1(u32 reg, u32 val,
+			       u32 lock, u32 key)
+{
+	void __iomem *reg_addr = dscr.base + reg;
+	void __iomem *lock_addr = dscr.base + lock;
+
+	/*
+	 * For some registers, the lock is relocked after a short number
+	 * of cycles. We have to put the lock write and register write in
+	 * the same fetch packet to meet this timing. The .align ensures
+	 * the two stw instructions are in the same fetch packet.
+	 */
+	asm volatile ("b	.s2	0f\n"
+		      "nop	5\n"
+		      "    .align 5\n"
+		      "0:\n"
+		      "stw	.D1T2	%3,*%2\n"
+		      "stw	.D1T2	%1,*%0\n"
+		      :
+		      : "a"(reg_addr), "b"(val), "a"(lock_addr), "b"(key)
+		);
+
+	/* in case the hw doesn't reset the lock */
+	soc_writel(0, lock_addr);
+}
+
+/*
+ * Write to a register protected by two lock registers
+ */
+static void dscr_write_locked2(u32 reg, u32 val,
+			       u32 lock0, u32 key0,
+			       u32 lock1, u32 key1)
+{
+	soc_writel(key0, dscr.base + lock0);
+	soc_writel(key1, dscr.base + lock1);
+	soc_writel(val, dscr.base + reg);
+	soc_writel(0, dscr.base + lock0);
+	soc_writel(0, dscr.base + lock1);
+}
+
+static void dscr_write(u32 reg, u32 val)
+{
+	struct locked_reg *lock;
+
+	lock = find_locked_reg(reg);
+	if (lock)
+		dscr_write_locked1(reg, val, lock->lockreg, lock->key);
+	else if (dscr.kick_key[0])
+		dscr_write_locked2(reg, val, dscr.kick_reg[0], dscr.kick_key[0],
+				   dscr.kick_reg[1], dscr.kick_key[1]);
+	else
+		soc_writel(val, dscr.base + reg);
+}
+
+
+/*
+ * Drivers can use this interface to enable/disable SoC IP blocks.
+ */
+void dscr_set_devstate(int id, enum dscr_devstate_t state)
+{
+	struct devstate_ctl_reg *ctl;
+	struct devstate_stat_reg *stat;
+	struct devstate_info *info;
+	u32 ctl_val, val;
+	int ctl_shift, ctl_mask;
+	unsigned long flags;
+
+	if (!dscr.base)
+		return;
+
+	if (id < 0 || id >= MAX_DEVSTATE_IDS)
+		return;
+
+	info = &dscr.devstate_info[id];
+	ctl = info->ctl;
+	stat = info->stat;
+
+	if (ctl == NULL)
+		return;
+
+	ctl_shift = ctl->shift + ctl->nbits * (id - ctl->start_id);
+	ctl_mask = ((1 << ctl->nbits) - 1) << ctl_shift;
+
+	switch (state) {
+	case DSCR_DEVSTATE_ENABLED:
+		ctl_val = ctl->enable << ctl_shift;
+		break;
+	case DSCR_DEVSTATE_DISABLED:
+		if (ctl->enable_only)
+			return;
+		ctl_val = ctl->disable << ctl_shift;
+		break;
+	default:
+		return;
+	}
+
+	spin_lock_irqsave(&dscr.lock, flags);
+
+	val = soc_readl(dscr.base + ctl->reg);
+	val &= ~ctl_mask;
+	val |= ctl_val;
+
+	dscr_write(ctl->reg, val);
+
+	spin_unlock_irqrestore(&dscr.lock, flags);
+
+	if (!stat)
+		return;
+
+	ctl_shift = stat->shift + stat->nbits * (id - stat->start_id);
+
+	if (state == DSCR_DEVSTATE_ENABLED)
+		ctl_val = stat->enable;
+	else
+		ctl_val = stat->disable;
+
+	do {
+		val = soc_readl(dscr.base + stat->reg);
+		val >>= ctl_shift;
+		val &= ((1 << stat->nbits) - 1);
+	} while (val != ctl_val);
+}
+EXPORT_SYMBOL(dscr_set_devstate);
+
+/*
+ * Drivers can use this to reset RMII module.
+ */
+void dscr_rmii_reset(int id, int assert)
+{
+	struct rmii_reset_reg *r;
+	unsigned long flags;
+	u32 val;
+
+	if (id < 0 || id >= MAX_SOC_EMACS)
+		return;
+
+	r = &dscr.rmii_resets[id];
+	if (r->mask == 0)
+		return;
+
+	spin_lock_irqsave(&dscr.lock, flags);
+
+	val = soc_readl(dscr.base + r->reg);
+	if (assert)
+		dscr_write(r->reg, val | r->mask);
+	else
+		dscr_write(r->reg, val & ~(r->mask));
+
+	spin_unlock_irqrestore(&dscr.lock, flags);
+}
+EXPORT_SYMBOL(dscr_rmii_reset);
+
+static void __init dscr_parse_devstat(struct device_node *node,
+				      void __iomem *base)
+{
+	u32 val;
+	int err;
+
+	err = of_property_read_u32_array(node, "ti,dscr-devstat", &val, 1);
+	if (!err)
+		c6x_devstat = soc_readl(base + val);
+	printk(KERN_INFO "DEVSTAT: %08x\n", c6x_devstat);
+}
+
+static void __init dscr_parse_silicon_rev(struct device_node *node,
+					 void __iomem *base)
+{
+	u32 vals[3];
+	int err;
+
+	err = of_property_read_u32_array(node, "ti,dscr-silicon-rev", vals, 3);
+	if (!err) {
+		c6x_silicon_rev = soc_readl(base + vals[0]);
+		c6x_silicon_rev >>= vals[1];
+		c6x_silicon_rev &= vals[2];
+	}
+}
+
+/*
+ * Some SoCs will have a pair of fuse registers which hold
+ * an ethernet MAC address. The "ti,dscr-mac-fuse-regs"
+ * property is a mapping from fuse register bytes to MAC
+ * address bytes. The expected format is:
+ *
+ *	ti,dscr-mac-fuse-regs = <reg0 b3 b2 b1 b0
+ *				 reg1 b3 b2 b1 b0>
+ *
+ * reg0 and reg1 are the offsets of the two fuse registers.
+ * b3-b0 positionally represent bytes within the fuse register.
+ * b3 is the most significant byte and b0 is the least.
+ * Allowable values for b3-b0 are:
+ *
+ *	  0 = fuse register byte not used in MAC address
+ *      1-6 = index+1 into c6x_fuse_mac[]
+ */
+static void __init dscr_parse_mac_fuse(struct device_node *node,
+				       void __iomem *base)
+{
+	u32 vals[10], fuse;
+	int f, i, j, err;
+
+	err = of_property_read_u32_array(node, "ti,dscr-mac-fuse-regs",
+					 vals, 10);
+	if (err)
+		return;
+
+	for (f = 0; f < 2; f++) {
+		fuse = soc_readl(base + vals[f * 5]);
+		for (j = (f * 5) + 1, i = 24; i >= 0; i -= 8, j++)
+			if (vals[j] && vals[j] <= 6)
+				c6x_fuse_mac[vals[j] - 1] = fuse >> i;
+	}
+}
+
+static void __init dscr_parse_rmii_resets(struct device_node *node,
+					  void __iomem *base)
+{
+	const __be32 *p;
+	int i, size;
+
+	/* look for RMII reset registers */
+	p = of_get_property(node, "ti,dscr-rmii-resets", &size);
+	if (p) {
+		/* parse all the reg/mask pairs we can handle */
+		size /= (sizeof(*p) * 2);
+		if (size > MAX_SOC_EMACS)
+			size = MAX_SOC_EMACS;
+
+		for (i = 0; i < size; i++) {
+			dscr.rmii_resets[i].reg = be32_to_cpup(p++);
+			dscr.rmii_resets[i].mask = be32_to_cpup(p++);
+		}
+	}
+}
+
+
+static void __init dscr_parse_privperm(struct device_node *node,
+				       void __iomem *base)
+{
+	u32 vals[2];
+	int err;
+
+	err = of_property_read_u32_array(node, "ti,dscr-privperm", vals, 2);
+	if (err)
+		return;
+	dscr_write(vals[0], vals[1]);
+}
+
+/*
+ * SoCs may have "locked" DSCR registers which can only be written
+ * to only after writing a key value to a lock registers. These
+ * regisers can be described with the "ti,dscr-locked-regs" property.
+ * This property provides a list of register descriptions with each
+ * description consisting of three values.
+ *
+ *	ti,dscr-locked-regs = <reg0 lockreg0 key0
+ *                               ...
+ *                             regN lockregN keyN>;
+ *
+ * reg is the offset of the locked register
+ * lockreg is the offset of the lock register
+ * key is the unlock key written to lockreg
+ *
+ */
+static void __init dscr_parse_locked_regs(struct device_node *node,
+					  void __iomem *base)
+{
+	struct locked_reg *r;
+	const __be32 *p;
+	int i, size;
+
+	p = of_get_property(node, "ti,dscr-locked-regs", &size);
+	if (p) {
+		/* parse all the register descriptions we can handle */
+		size /= (sizeof(*p) * 3);
+		if (size > MAX_LOCKED_REGS)
+			size = MAX_LOCKED_REGS;
+
+		for (i = 0; i < size; i++) {
+			r = &dscr.locked[i];
+
+			r->reg = be32_to_cpup(p++);
+			r->lockreg = be32_to_cpup(p++);
+			r->key = be32_to_cpup(p++);
+		}
+	}
+}
+
+/*
+ * SoCs may have DSCR registers which are only write enabled after
+ * writing specific key values to two registers. The two key registers
+ * and the key values can be parsed from a "ti,dscr-kick-regs"
+ * propety with the following layout:
+ *
+ *	ti,dscr-kick-regs = <kickreg0 key0 kickreg1 key1>
+ *
+ * kickreg is the offset of the "kick" register
+ * key is the value which unlocks writing for protected regs
+ */
+static void __init dscr_parse_kick_regs(struct device_node *node,
+					void __iomem *base)
+{
+	u32 vals[4];
+	int err;
+
+	err = of_property_read_u32_array(node, "ti,dscr-kick-regs", vals, 4);
+	if (!err) {
+		dscr.kick_reg[0] = vals[0];
+		dscr.kick_key[0] = vals[1];
+		dscr.kick_reg[1] = vals[2];
+		dscr.kick_key[1] = vals[3];
+	}
+}
+
+
+/*
+ * SoCs may provide controls to enable/disable individual IP blocks. These
+ * controls in the DSCR usually control pin drivers but also may control
+ * clocking and or resets. The device tree is used to describe the bitfields
+ * in registers used to control device state. The number of bits and their
+ * values may vary even within the same register.
+ *
+ * The layout of these bitfields is described by the ti,dscr-devstate-ctl-regs
+ * property. This property is a list where each element describes a contiguous
+ * range of control fields with like properties. Each element of the list
+ * consists of 7 cells with the following values:
+ *
+ *   start_id num_ids reg enable disable start_bit nbits
+ *
+ * start_id is device id for the first device control in the range
+ * num_ids is the number of device controls in the range
+ * reg is the offset of the register holding the control bits
+ * enable is the value to enable a device
+ * disable is the value to disable a device (0xffffffff if cannot disable)
+ * start_bit is the bit number of the first bit in the range
+ * nbits is the number of bits per device control
+ */
+static void __init dscr_parse_devstate_ctl_regs(struct device_node *node,
+						void __iomem *base)
+{
+	struct devstate_ctl_reg *r;
+	const __be32 *p;
+	int i, j, size;
+
+	p = of_get_property(node, "ti,dscr-devstate-ctl-regs", &size);
+	if (p) {
+		/* parse all the ranges we can handle */
+		size /= (sizeof(*p) * 7);
+		if (size > MAX_DEVCTL_REGS)
+			size = MAX_DEVCTL_REGS;
+
+		for (i = 0; i < size; i++) {
+			r = &dscr.devctl[i];
+
+			r->start_id = be32_to_cpup(p++);
+			r->num_ids = be32_to_cpup(p++);
+			r->reg = be32_to_cpup(p++);
+			r->enable = be32_to_cpup(p++);
+			r->disable = be32_to_cpup(p++);
+			if (r->disable == 0xffffffff)
+				r->enable_only = 1;
+			r->shift = be32_to_cpup(p++);
+			r->nbits = be32_to_cpup(p++);
+
+			for (j = r->start_id;
+			     j < (r->start_id + r->num_ids);
+			     j++)
+				dscr.devstate_info[j].ctl = r;
+		}
+	}
+}
+
+/*
+ * SoCs may provide status registers indicating the state (enabled/disabled) of
+ * devices on the SoC. The device tree is used to describe the bitfields in
+ * registers used to provide device status. The number of bits and their
+ * values used to provide status may vary even within the same register.
+ *
+ * The layout of these bitfields is described by the ti,dscr-devstate-stat-regs
+ * property. This property is a list where each element describes a contiguous
+ * range of status fields with like properties. Each element of the list
+ * consists of 7 cells with the following values:
+ *
+ *   start_id num_ids reg enable disable start_bit nbits
+ *
+ * start_id is device id for the first device status in the range
+ * num_ids is the number of devices covered by the range
+ * reg is the offset of the register holding the status bits
+ * enable is the value indicating device is enabled
+ * disable is the value indicating device is disabled
+ * start_bit is the bit number of the first bit in the range
+ * nbits is the number of bits per device status
+ */
+static void __init dscr_parse_devstate_stat_regs(struct device_node *node,
+						 void __iomem *base)
+{
+	struct devstate_stat_reg *r;
+	const __be32 *p;
+	int i, j, size;
+
+	p = of_get_property(node, "ti,dscr-devstate-stat-regs", &size);
+	if (p) {
+		/* parse all the ranges we can handle */
+		size /= (sizeof(*p) * 7);
+		if (size > MAX_DEVSTAT_REGS)
+			size = MAX_DEVSTAT_REGS;
+
+		for (i = 0; i < size; i++) {
+			r = &dscr.devstat[i];
+
+			r->start_id = be32_to_cpup(p++);
+			r->num_ids = be32_to_cpup(p++);
+			r->reg = be32_to_cpup(p++);
+			r->enable = be32_to_cpup(p++);
+			r->disable = be32_to_cpup(p++);
+			r->shift = be32_to_cpup(p++);
+			r->nbits = be32_to_cpup(p++);
+
+			for (j = r->start_id;
+			     j < (r->start_id + r->num_ids);
+			     j++)
+				dscr.devstate_info[j].stat = r;
+		}
+	}
+}
+
+static struct of_device_id dscr_ids[] __initdata = {
+	{ .compatible = "ti,c64x+dscr" },
+	{}
+};
+
+/*
+ * Probe for DSCR area.
+ *
+ * This has to be done early on in case timer or interrupt controller
+ * needs something. e.g. On C6455 SoC, timer must be enabled through
+ * DSCR before it is functional.
+ */
+void __init dscr_probe(void)
+{
+	struct device_node *node;
+	void __iomem *base;
+
+	spin_lock_init(&dscr.lock);
+
+	node = of_find_matching_node(NULL, dscr_ids);
+	if (!node)
+		return;
+
+	base = of_iomap(node, 0);
+	if (!base) {
+		of_node_put(node);
+		return;
+	}
+
+	dscr.base = base;
+
+	dscr_parse_devstat(node, base);
+	dscr_parse_silicon_rev(node, base);
+	dscr_parse_mac_fuse(node, base);
+	dscr_parse_rmii_resets(node, base);
+	dscr_parse_locked_regs(node, base);
+	dscr_parse_kick_regs(node, base);
+	dscr_parse_devstate_ctl_regs(node, base);
+	dscr_parse_devstate_stat_regs(node, base);
+	dscr_parse_privperm(node, base);
+}
diff --git a/arch/c6x/platforms/emif.c b/arch/c6x/platforms/emif.c
new file mode 100644
index 000000000000..8b564dec241d
--- /dev/null
+++ b/arch/c6x/platforms/emif.c
@@ -0,0 +1,87 @@
+/*
+ *  External Memory Interface
+ *
+ *  Copyright (C) 2011 Texas Instruments Incorporated
+ *  Author: Mark Salter <msalter@redhat.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/io.h>
+#include <asm/soc.h>
+#include <asm/dscr.h>
+
+#define NUM_EMIFA_CHIP_ENABLES 4
+
+struct emifa_regs {
+	u32	midr;
+	u32	stat;
+	u32	reserved1[6];
+	u32	bprio;
+	u32	reserved2[23];
+	u32	cecfg[NUM_EMIFA_CHIP_ENABLES];
+	u32	reserved3[4];
+	u32	awcc;
+	u32	reserved4[7];
+	u32	intraw;
+	u32	intmsk;
+	u32	intmskset;
+	u32	intmskclr;
+};
+
+static struct of_device_id emifa_match[] __initdata = {
+	{ .compatible = "ti,c64x+emifa"	},
+	{}
+};
+
+/*
+ * Parse device tree for existence of an EMIF (External Memory Interface)
+ * and initialize it if found.
+ */
+static int __init c6x_emifa_init(void)
+{
+	struct emifa_regs __iomem *regs;
+	struct device_node *node;
+	const __be32 *p;
+	u32 val;
+	int i, len, err;
+
+	node = of_find_matching_node(NULL, emifa_match);
+	if (!node)
+		return 0;
+
+	regs = of_iomap(node, 0);
+	if (!regs)
+		return 0;
+
+	/* look for a dscr-based enable for emifa pin buffers */
+	err = of_property_read_u32_array(node, "ti,dscr-dev-enable", &val, 1);
+	if (!err)
+		dscr_set_devstate(val, DSCR_DEVSTATE_ENABLED);
+
+	/* set up the chip enables */
+	p = of_get_property(node, "ti,emifa-ce-config", &len);
+	if (p) {
+		len /= sizeof(u32);
+		if (len > NUM_EMIFA_CHIP_ENABLES)
+			len = NUM_EMIFA_CHIP_ENABLES;
+		for (i = 0; i <= len; i++)
+			soc_writel(be32_to_cpup(&p[i]), &regs->cecfg[i]);
+	}
+
+	err = of_property_read_u32_array(node, "ti,emifa-burst-priority", &val, 1);
+	if (!err)
+		soc_writel(val, &regs->bprio);
+
+	err = of_property_read_u32_array(node, "ti,emifa-async-wait-control", &val, 1);
+	if (!err)
+		soc_writel(val, &regs->awcc);
+
+	iounmap(regs);
+	of_node_put(node);
+	return 0;
+}
+pure_initcall(c6x_emifa_init);
diff --git a/arch/c6x/platforms/megamod-pic.c b/arch/c6x/platforms/megamod-pic.c
new file mode 100644
index 000000000000..7c37a947fb1c
--- /dev/null
+++ b/arch/c6x/platforms/megamod-pic.c
@@ -0,0 +1,349 @@
+/*
+ *  Support for C64x+ Megamodule Interrupt Controller
+ *
+ *  Copyright (C) 2010, 2011 Texas Instruments Incorporated
+ *  Contributed by: Mark Salter <msalter@redhat.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_irq.h>
+#include <linux/of_address.h>
+#include <linux/slab.h>
+#include <asm/soc.h>
+#include <asm/megamod-pic.h>
+
+#define NR_COMBINERS	4
+#define NR_MUX_OUTPUTS  12
+
+#define IRQ_UNMAPPED 0xffff
+
+/*
+ * Megamodule Interrupt Controller register layout
+ */
+struct megamod_regs {
+	u32	evtflag[8];
+	u32	evtset[8];
+	u32	evtclr[8];
+	u32	reserved0[8];
+	u32	evtmask[8];
+	u32	mevtflag[8];
+	u32	expmask[8];
+	u32	mexpflag[8];
+	u32	intmux_unused;
+	u32	intmux[7];
+	u32	reserved1[8];
+	u32	aegmux[2];
+	u32	reserved2[14];
+	u32	intxstat;
+	u32	intxclr;
+	u32	intdmask;
+	u32	reserved3[13];
+	u32	evtasrt;
+};
+
+struct megamod_pic {
+	struct irq_host	*irqhost;
+	struct megamod_regs __iomem *regs;
+	raw_spinlock_t lock;
+
+	/* hw mux mapping */
+	unsigned int output_to_irq[NR_MUX_OUTPUTS];
+};
+
+static struct megamod_pic *mm_pic;
+
+struct megamod_cascade_data {
+	struct megamod_pic *pic;
+	int index;
+};
+
+static struct megamod_cascade_data cascade_data[NR_COMBINERS];
+
+static void mask_megamod(struct irq_data *data)
+{
+	struct megamod_pic *pic = irq_data_get_irq_chip_data(data);
+	irq_hw_number_t src = irqd_to_hwirq(data);
+	u32 __iomem *evtmask = &pic->regs->evtmask[src / 32];
+
+	raw_spin_lock(&pic->lock);
+	soc_writel(soc_readl(evtmask) | (1 << (src & 31)), evtmask);
+	raw_spin_unlock(&pic->lock);
+}
+
+static void unmask_megamod(struct irq_data *data)
+{
+	struct megamod_pic *pic = irq_data_get_irq_chip_data(data);
+	irq_hw_number_t src = irqd_to_hwirq(data);
+	u32 __iomem *evtmask = &pic->regs->evtmask[src / 32];
+
+	raw_spin_lock(&pic->lock);
+	soc_writel(soc_readl(evtmask) & ~(1 << (src & 31)), evtmask);
+	raw_spin_unlock(&pic->lock);
+}
+
+static struct irq_chip megamod_chip = {
+	.name		= "megamod",
+	.irq_mask	= mask_megamod,
+	.irq_unmask	= unmask_megamod,
+};
+
+static void megamod_irq_cascade(unsigned int irq, struct irq_desc *desc)
+{
+	struct megamod_cascade_data *cascade;
+	struct megamod_pic *pic;
+	u32 events;
+	int n, idx;
+
+	cascade = irq_desc_get_handler_data(desc);
+
+	pic = cascade->pic;
+	idx = cascade->index;
+
+	while ((events = soc_readl(&pic->regs->mevtflag[idx])) != 0) {
+		n = __ffs(events);
+
+		irq = irq_linear_revmap(pic->irqhost, idx * 32 + n);
+
+		soc_writel(1 << n, &pic->regs->evtclr[idx]);
+
+		generic_handle_irq(irq);
+	}
+}
+
+static int megamod_map(struct irq_host *h, unsigned int virq,
+		       irq_hw_number_t hw)
+{
+	struct megamod_pic *pic = h->host_data;
+	int i;
+
+	/* We shouldn't see a hwirq which is muxed to core controller */
+	for (i = 0; i < NR_MUX_OUTPUTS; i++)
+		if (pic->output_to_irq[i] == hw)
+			return -1;
+
+	irq_set_chip_data(virq, pic);
+	irq_set_chip_and_handler(virq, &megamod_chip, handle_level_irq);
+
+	/* Set default irq type */
+	irq_set_irq_type(virq, IRQ_TYPE_NONE);
+
+	return 0;
+}
+
+static int megamod_xlate(struct irq_host *h, struct device_node *ct,
+			 const u32 *intspec, unsigned int intsize,
+			 irq_hw_number_t *out_hwirq, unsigned int *out_type)
+
+{
+	/* megamod intspecs must have 1 cell */
+	BUG_ON(intsize != 1);
+	*out_hwirq = intspec[0];
+	*out_type = IRQ_TYPE_NONE;
+	return 0;
+}
+
+static struct irq_host_ops megamod_host_ops = {
+	.map	= megamod_map,
+	.xlate	= megamod_xlate,
+};
+
+static void __init set_megamod_mux(struct megamod_pic *pic, int src, int output)
+{
+	int index, offset;
+	u32 val;
+
+	if (src < 0 || src >= (NR_COMBINERS * 32)) {
+		pic->output_to_irq[output] = IRQ_UNMAPPED;
+		return;
+	}
+
+	/* four mappings per mux register */
+	index = output / 4;
+	offset = (output & 3) * 8;
+
+	val = soc_readl(&pic->regs->intmux[index]);
+	val &= ~(0xff << offset);
+	val |= src << offset;
+	soc_writel(val, &pic->regs->intmux[index]);
+}
+
+/*
+ * Parse the MUX mapping, if one exists.
+ *
+ * The MUX map is an array of up to 12 cells; one for each usable core priority
+ * interrupt. The value of a given cell is the megamodule interrupt source
+ * which is to me MUXed to the output corresponding to the cell position
+ * withing the array. The first cell in the array corresponds to priority
+ * 4 and the last (12th) cell corresponds to priority 15. The allowed
+ * values are 4 - ((NR_COMBINERS * 32) - 1). Note that the combined interrupt
+ * sources (0 - 3) are not allowed to be mapped through this property. They
+ * are handled through the "interrupts" property. This allows us to use a
+ * value of zero as a "do not map" placeholder.
+ */
+static void __init parse_priority_map(struct megamod_pic *pic,
+				      int *mapping, int size)
+{
+	struct device_node *np = pic->irqhost->of_node;
+	const __be32 *map;
+	int i, maplen;
+	u32 val;
+
+	map = of_get_property(np, "ti,c64x+megamod-pic-mux", &maplen);
+	if (map) {
+		maplen /= 4;
+		if (maplen > size)
+			maplen = size;
+
+		for (i = 0; i < maplen; i++) {
+			val = be32_to_cpup(map);
+			if (val && val >= 4)
+				mapping[i] = val;
+			++map;
+		}
+	}
+}
+
+static struct megamod_pic * __init init_megamod_pic(struct device_node *np)
+{
+	struct megamod_pic *pic;
+	int i, irq;
+	int mapping[NR_MUX_OUTPUTS];
+
+	pr_info("Initializing C64x+ Megamodule PIC\n");
+
+	pic = kzalloc(sizeof(struct megamod_pic), GFP_KERNEL);
+	if (!pic) {
+		pr_err("%s: Could not alloc PIC structure.\n", np->full_name);
+		return NULL;
+	}
+
+	pic->irqhost = irq_alloc_host(np, IRQ_HOST_MAP_LINEAR,
+				      NR_COMBINERS * 32, &megamod_host_ops,
+				      IRQ_UNMAPPED);
+	if (!pic->irqhost) {
+		pr_err("%s: Could not alloc host.\n", np->full_name);
+		goto error_free;
+	}
+
+	pic->irqhost->host_data = pic;
+
+	raw_spin_lock_init(&pic->lock);
+
+	pic->regs = of_iomap(np, 0);
+	if (!pic->regs) {
+		pr_err("%s: Could not map registers.\n", np->full_name);
+		goto error_free;
+	}
+
+	/* Initialize MUX map */
+	for (i = 0; i < ARRAY_SIZE(mapping); i++)
+		mapping[i] = IRQ_UNMAPPED;
+
+	parse_priority_map(pic, mapping, ARRAY_SIZE(mapping));
+
+	/*
+	 * We can have up to 12 interrupts cascading to the core controller.
+	 * These cascades can be from the combined interrupt sources or for
+	 * individual interrupt sources. The "interrupts" property only
+	 * deals with the cascaded combined interrupts. The individual
+	 * interrupts muxed to the core controller use the core controller
+	 * as their interrupt parent.
+	 */
+	for (i = 0; i < NR_COMBINERS; i++) {
+
+		irq = irq_of_parse_and_map(np, i);
+		if (irq == NO_IRQ)
+			continue;
+
+		/*
+		 * We count on the core priority interrupts (4 - 15) being
+		 * direct mapped. Check that device tree provided something
+		 * in that range.
+		 */
+		if (irq < 4 || irq >= NR_PRIORITY_IRQS) {
+			pr_err("%s: combiner-%d virq %d out of range!\n",
+				 np->full_name, i, irq);
+			continue;
+		}
+
+		/* record the mapping */
+		mapping[irq - 4] = i;
+
+		pr_debug("%s: combiner-%d cascading to virq %d\n",
+			 np->full_name, i, irq);
+
+		cascade_data[i].pic = pic;
+		cascade_data[i].index = i;
+
+		/* mask and clear all events in combiner */
+		soc_writel(~0, &pic->regs->evtmask[i]);
+		soc_writel(~0, &pic->regs->evtclr[i]);
+
+		irq_set_handler_data(irq, &cascade_data[i]);
+		irq_set_chained_handler(irq, megamod_irq_cascade);
+	}
+
+	/* Finally, set up the MUX registers */
+	for (i = 0; i < NR_MUX_OUTPUTS; i++) {
+		if (mapping[i] != IRQ_UNMAPPED) {
+			pr_debug("%s: setting mux %d to priority %d\n",
+				 np->full_name, mapping[i], i + 4);
+			set_megamod_mux(pic, mapping[i], i);
+		}
+	}
+
+	return pic;
+
+error_free:
+	kfree(pic);
+
+	return NULL;
+}
+
+/*
+ * Return next active event after ACK'ing it.
+ * Return -1 if no events active.
+ */
+static int get_exception(void)
+{
+	int i, bit;
+	u32 mask;
+
+	for (i = 0; i < NR_COMBINERS; i++) {
+		mask = soc_readl(&mm_pic->regs->mexpflag[i]);
+		if (mask) {
+			bit = __ffs(mask);
+			soc_writel(1 << bit, &mm_pic->regs->evtclr[i]);
+			return (i * 32) + bit;
+		}
+	}
+	return -1;
+}
+
+static void assert_event(unsigned int val)
+{
+	soc_writel(val, &mm_pic->regs->evtasrt);
+}
+
+void __init megamod_pic_init(void)
+{
+	struct device_node *np;
+
+	np = of_find_compatible_node(NULL, NULL, "ti,c64x+megamod-pic");
+	if (!np)
+		return;
+
+	mm_pic = init_megamod_pic(np);
+	of_node_put(np);
+
+	soc_ops.get_exception = get_exception;
+	soc_ops.assert_event = assert_event;
+
+	return;
+}
diff --git a/arch/c6x/platforms/platform.c b/arch/c6x/platforms/platform.c
new file mode 100644
index 000000000000..26c1a355d600
--- /dev/null
+++ b/arch/c6x/platforms/platform.c
@@ -0,0 +1,17 @@
+/*
+ * Copyright 2011 Texas Instruments Incorporated
+ *
+ * This file is licensed under the terms of the GNU General Public License
+ * version 2. This program is licensed "as is" without any warranty of any
+ * kind, whether express or implied.
+ */
+
+#include <linux/init.h>
+#include <linux/of_platform.h>
+
+static int __init c6x_device_probe(void)
+{
+	of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL);
+	return 0;
+}
+core_initcall(c6x_device_probe);
diff --git a/arch/c6x/platforms/pll.c b/arch/c6x/platforms/pll.c
new file mode 100644
index 000000000000..3aa898f7ce4d
--- /dev/null
+++ b/arch/c6x/platforms/pll.c
@@ -0,0 +1,444 @@
+/*
+ * Clock and PLL control for C64x+ devices
+ *
+ * Copyright (C) 2010, 2011 Texas Instruments.
+ * Contributed by: Mark Salter <msalter@redhat.com>
+ *
+ * Copied heavily from arm/mach-davinci/clock.c, so:
+ *
+ * Copyright (C) 2006-2007 Texas Instruments.
+ * Copyright (C) 2008-2009 Deep Root Systems, LLC
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/clkdev.h>
+#include <linux/clk.h>
+#include <linux/io.h>
+#include <linux/err.h>
+
+#include <asm/clock.h>
+#include <asm/soc.h>
+
+static LIST_HEAD(clocks);
+static DEFINE_MUTEX(clocks_mutex);
+static DEFINE_SPINLOCK(clockfw_lock);
+
+static void __clk_enable(struct clk *clk)
+{
+	if (clk->parent)
+		__clk_enable(clk->parent);
+	clk->usecount++;
+}
+
+static void __clk_disable(struct clk *clk)
+{
+	if (WARN_ON(clk->usecount == 0))
+		return;
+	--clk->usecount;
+
+	if (clk->parent)
+		__clk_disable(clk->parent);
+}
+
+int clk_enable(struct clk *clk)
+{
+	unsigned long flags;
+
+	if (clk == NULL || IS_ERR(clk))
+		return -EINVAL;
+
+	spin_lock_irqsave(&clockfw_lock, flags);
+	__clk_enable(clk);
+	spin_unlock_irqrestore(&clockfw_lock, flags);
+
+	return 0;
+}
+EXPORT_SYMBOL(clk_enable);
+
+void clk_disable(struct clk *clk)
+{
+	unsigned long flags;
+
+	if (clk == NULL || IS_ERR(clk))
+		return;
+
+	spin_lock_irqsave(&clockfw_lock, flags);
+	__clk_disable(clk);
+	spin_unlock_irqrestore(&clockfw_lock, flags);
+}
+EXPORT_SYMBOL(clk_disable);
+
+unsigned long clk_get_rate(struct clk *clk)
+{
+	if (clk == NULL || IS_ERR(clk))
+		return -EINVAL;
+
+	return clk->rate;
+}
+EXPORT_SYMBOL(clk_get_rate);
+
+long clk_round_rate(struct clk *clk, unsigned long rate)
+{
+	if (clk == NULL || IS_ERR(clk))
+		return -EINVAL;
+
+	if (clk->round_rate)
+		return clk->round_rate(clk, rate);
+
+	return clk->rate;
+}
+EXPORT_SYMBOL(clk_round_rate);
+
+/* Propagate rate to children */
+static void propagate_rate(struct clk *root)
+{
+	struct clk *clk;
+
+	list_for_each_entry(clk, &root->children, childnode) {
+		if (clk->recalc)
+			clk->rate = clk->recalc(clk);
+		propagate_rate(clk);
+	}
+}
+
+int clk_set_rate(struct clk *clk, unsigned long rate)
+{
+	unsigned long flags;
+	int ret = -EINVAL;
+
+	if (clk == NULL || IS_ERR(clk))
+		return ret;
+
+	if (clk->set_rate)
+		ret = clk->set_rate(clk, rate);
+
+	spin_lock_irqsave(&clockfw_lock, flags);
+	if (ret == 0) {
+		if (clk->recalc)
+			clk->rate = clk->recalc(clk);
+		propagate_rate(clk);
+	}
+	spin_unlock_irqrestore(&clockfw_lock, flags);
+
+	return ret;
+}
+EXPORT_SYMBOL(clk_set_rate);
+
+int clk_set_parent(struct clk *clk, struct clk *parent)
+{
+	unsigned long flags;
+
+	if (clk == NULL || IS_ERR(clk))
+		return -EINVAL;
+
+	/* Cannot change parent on enabled clock */
+	if (WARN_ON(clk->usecount))
+		return -EINVAL;
+
+	mutex_lock(&clocks_mutex);
+	clk->parent = parent;
+	list_del_init(&clk->childnode);
+	list_add(&clk->childnode, &clk->parent->children);
+	mutex_unlock(&clocks_mutex);
+
+	spin_lock_irqsave(&clockfw_lock, flags);
+	if (clk->recalc)
+		clk->rate = clk->recalc(clk);
+	propagate_rate(clk);
+	spin_unlock_irqrestore(&clockfw_lock, flags);
+
+	return 0;
+}
+EXPORT_SYMBOL(clk_set_parent);
+
+int clk_register(struct clk *clk)
+{
+	if (clk == NULL || IS_ERR(clk))
+		return -EINVAL;
+
+	if (WARN(clk->parent && !clk->parent->rate,
+		 "CLK: %s parent %s has no rate!\n",
+		 clk->name, clk->parent->name))
+		return -EINVAL;
+
+	mutex_lock(&clocks_mutex);
+	list_add_tail(&clk->node, &clocks);
+	if (clk->parent)
+		list_add_tail(&clk->childnode, &clk->parent->children);
+	mutex_unlock(&clocks_mutex);
+
+	/* If rate is already set, use it */
+	if (clk->rate)
+		return 0;
+
+	/* Else, see if there is a way to calculate it */
+	if (clk->recalc)
+		clk->rate = clk->recalc(clk);
+
+	/* Otherwise, default to parent rate */
+	else if (clk->parent)
+		clk->rate = clk->parent->rate;
+
+	return 0;
+}
+EXPORT_SYMBOL(clk_register);
+
+void clk_unregister(struct clk *clk)
+{
+	if (clk == NULL || IS_ERR(clk))
+		return;
+
+	mutex_lock(&clocks_mutex);
+	list_del(&clk->node);
+	list_del(&clk->childnode);
+	mutex_unlock(&clocks_mutex);
+}
+EXPORT_SYMBOL(clk_unregister);
+
+
+static u32 pll_read(struct pll_data *pll, int reg)
+{
+	return soc_readl(pll->base + reg);
+}
+
+static unsigned long clk_sysclk_recalc(struct clk *clk)
+{
+	u32 v, plldiv = 0;
+	struct pll_data *pll;
+	unsigned long rate = clk->rate;
+
+	if (WARN_ON(!clk->parent))
+		return rate;
+
+	rate = clk->parent->rate;
+
+	/* the parent must be a PLL */
+	if (WARN_ON(!clk->parent->pll_data))
+		return rate;
+
+	pll = clk->parent->pll_data;
+
+	/* If pre-PLL, source clock is before the multiplier and divider(s) */
+	if (clk->flags & PRE_PLL)
+		rate = pll->input_rate;
+
+	if (!clk->div) {
+		pr_debug("%s: (no divider) rate = %lu KHz\n",
+			 clk->name, rate / 1000);
+		return rate;
+	}
+
+	if (clk->flags & FIXED_DIV_PLL) {
+		rate /= clk->div;
+		pr_debug("%s: (fixed divide by %d) rate = %lu KHz\n",
+			 clk->name, clk->div, rate / 1000);
+		return rate;
+	}
+
+	v = pll_read(pll, clk->div);
+	if (v & PLLDIV_EN)
+		plldiv = (v & PLLDIV_RATIO_MASK) + 1;
+
+	if (plldiv == 0)
+		plldiv = 1;
+
+	rate /= plldiv;
+
+	pr_debug("%s: (divide by %d) rate = %lu KHz\n",
+		 clk->name, plldiv, rate / 1000);
+
+	return rate;
+}
+
+static unsigned long clk_leafclk_recalc(struct clk *clk)
+{
+	if (WARN_ON(!clk->parent))
+		return clk->rate;
+
+	pr_debug("%s: (parent %s) rate = %lu KHz\n",
+		 clk->name, clk->parent->name,	clk->parent->rate / 1000);
+
+	return clk->parent->rate;
+}
+
+static unsigned long clk_pllclk_recalc(struct clk *clk)
+{
+	u32 ctrl, mult = 0, prediv = 0, postdiv = 0;
+	u8 bypass;
+	struct pll_data *pll = clk->pll_data;
+	unsigned long rate = clk->rate;
+
+	if (clk->flags & FIXED_RATE_PLL)
+		return rate;
+
+	ctrl = pll_read(pll, PLLCTL);
+	rate = pll->input_rate = clk->parent->rate;
+
+	if (ctrl & PLLCTL_PLLEN)
+		bypass = 0;
+	else
+		bypass = 1;
+
+	if (pll->flags & PLL_HAS_MUL) {
+		mult = pll_read(pll, PLLM);
+		mult = (mult & PLLM_PLLM_MASK) + 1;
+	}
+	if (pll->flags & PLL_HAS_PRE) {
+		prediv = pll_read(pll, PLLPRE);
+		if (prediv & PLLDIV_EN)
+			prediv = (prediv & PLLDIV_RATIO_MASK) + 1;
+		else
+			prediv = 0;
+	}
+	if (pll->flags & PLL_HAS_POST) {
+		postdiv = pll_read(pll, PLLPOST);
+		if (postdiv & PLLDIV_EN)
+			postdiv = (postdiv & PLLDIV_RATIO_MASK) + 1;
+		else
+			postdiv = 1;
+	}
+
+	if (!bypass) {
+		if (prediv)
+			rate /= prediv;
+		if (mult)
+			rate *= mult;
+		if (postdiv)
+			rate /= postdiv;
+
+		pr_debug("PLL%d: input = %luMHz, pre[%d] mul[%d] post[%d] "
+			 "--> %luMHz output.\n",
+			 pll->num, clk->parent->rate / 1000000,
+			 prediv, mult, postdiv, rate / 1000000);
+	} else
+		pr_debug("PLL%d: input = %luMHz, bypass mode.\n",
+			 pll->num, clk->parent->rate / 1000000);
+
+	return rate;
+}
+
+
+static void __init __init_clk(struct clk *clk)
+{
+	INIT_LIST_HEAD(&clk->node);
+	INIT_LIST_HEAD(&clk->children);
+	INIT_LIST_HEAD(&clk->childnode);
+
+	if (!clk->recalc) {
+
+		/* Check if clock is a PLL */
+		if (clk->pll_data)
+			clk->recalc = clk_pllclk_recalc;
+
+		/* Else, if it is a PLL-derived clock */
+		else if (clk->flags & CLK_PLL)
+			clk->recalc = clk_sysclk_recalc;
+
+		/* Otherwise, it is a leaf clock (PSC clock) */
+		else if (clk->parent)
+			clk->recalc = clk_leafclk_recalc;
+	}
+}
+
+void __init c6x_clks_init(struct clk_lookup *clocks)
+{
+	struct clk_lookup *c;
+	struct clk *clk;
+	size_t num_clocks = 0;
+
+	for (c = clocks; c->clk; c++) {
+		clk = c->clk;
+
+		__init_clk(clk);
+		clk_register(clk);
+		num_clocks++;
+
+		/* Turn on clocks that Linux doesn't otherwise manage */
+		if (clk->flags & ALWAYS_ENABLED)
+			clk_enable(clk);
+	}
+
+	clkdev_add_table(clocks, num_clocks);
+}
+
+#ifdef CONFIG_DEBUG_FS
+
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+
+#define CLKNAME_MAX	10		/* longest clock name */
+#define NEST_DELTA	2
+#define NEST_MAX	4
+
+static void
+dump_clock(struct seq_file *s, unsigned nest, struct clk *parent)
+{
+	char		*state;
+	char		buf[CLKNAME_MAX + NEST_DELTA * NEST_MAX];
+	struct clk	*clk;
+	unsigned	i;
+
+	if (parent->flags & CLK_PLL)
+		state = "pll";
+	else
+		state = "";
+
+	/* <nest spaces> name <pad to end> */
+	memset(buf, ' ', sizeof(buf) - 1);
+	buf[sizeof(buf) - 1] = 0;
+	i = strlen(parent->name);
+	memcpy(buf + nest, parent->name,
+	       min(i, (unsigned)(sizeof(buf) - 1 - nest)));
+
+	seq_printf(s, "%s users=%2d %-3s %9ld Hz\n",
+		   buf, parent->usecount, state, clk_get_rate(parent));
+	/* REVISIT show device associations too */
+
+	/* cost is now small, but not linear... */
+	list_for_each_entry(clk, &parent->children, childnode) {
+		dump_clock(s, nest + NEST_DELTA, clk);
+	}
+}
+
+static int c6x_ck_show(struct seq_file *m, void *v)
+{
+	struct clk *clk;
+
+	/*
+	 * Show clock tree; We trust nonzero usecounts equate to PSC enables...
+	 */
+	mutex_lock(&clocks_mutex);
+	list_for_each_entry(clk, &clocks, node)
+		if (!clk->parent)
+			dump_clock(m, 0, clk);
+	mutex_unlock(&clocks_mutex);
+
+	return 0;
+}
+
+static int c6x_ck_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, c6x_ck_show, NULL);
+}
+
+static const struct file_operations c6x_ck_operations = {
+	.open		= c6x_ck_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+static int __init c6x_clk_debugfs_init(void)
+{
+	debugfs_create_file("c6x_clocks", S_IFREG | S_IRUGO, NULL, NULL,
+			    &c6x_ck_operations);
+
+	return 0;
+}
+device_initcall(c6x_clk_debugfs_init);
+#endif /* CONFIG_DEBUG_FS */
diff --git a/arch/c6x/platforms/plldata.c b/arch/c6x/platforms/plldata.c
new file mode 100644
index 000000000000..2cfd6f42968f
--- /dev/null
+++ b/arch/c6x/platforms/plldata.c
@@ -0,0 +1,404 @@
+/*
+ *  Port on Texas Instruments TMS320C6x architecture
+ *
+ *  Copyright (C) 2011 Texas Instruments Incorporated
+ *  Author: Mark Salter <msalter@redhat.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+#include <linux/kernel.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/ioport.h>
+#include <linux/clkdev.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+
+#include <asm/clock.h>
+#include <asm/setup.h>
+#include <asm/irq.h>
+
+/*
+ * Common SoC clock support.
+ */
+
+/* Default input for PLL1 */
+struct clk clkin1 = {
+	.name = "clkin1",
+	.node = LIST_HEAD_INIT(clkin1.node),
+	.children = LIST_HEAD_INIT(clkin1.children),
+	.childnode = LIST_HEAD_INIT(clkin1.childnode),
+};
+
+struct pll_data c6x_soc_pll1 = {
+	.num	   = 1,
+	.sysclks   = {
+		{
+			.name = "pll1",
+			.parent = &clkin1,
+			.pll_data = &c6x_soc_pll1,
+			.flags = CLK_PLL,
+		},
+		{
+			.name = "pll1_sysclk1",
+			.parent = &c6x_soc_pll1.sysclks[0],
+			.flags = CLK_PLL,
+		},
+		{
+			.name = "pll1_sysclk2",
+			.parent = &c6x_soc_pll1.sysclks[0],
+			.flags = CLK_PLL,
+		},
+		{
+			.name = "pll1_sysclk3",
+			.parent = &c6x_soc_pll1.sysclks[0],
+			.flags = CLK_PLL,
+		},
+		{
+			.name = "pll1_sysclk4",
+			.parent = &c6x_soc_pll1.sysclks[0],
+			.flags = CLK_PLL,
+		},
+		{
+			.name = "pll1_sysclk5",
+			.parent = &c6x_soc_pll1.sysclks[0],
+			.flags = CLK_PLL,
+		},
+		{
+			.name = "pll1_sysclk6",
+			.parent = &c6x_soc_pll1.sysclks[0],
+			.flags = CLK_PLL,
+		},
+		{
+			.name = "pll1_sysclk7",
+			.parent = &c6x_soc_pll1.sysclks[0],
+			.flags = CLK_PLL,
+		},
+		{
+			.name = "pll1_sysclk8",
+			.parent = &c6x_soc_pll1.sysclks[0],
+			.flags = CLK_PLL,
+		},
+		{
+			.name = "pll1_sysclk9",
+			.parent = &c6x_soc_pll1.sysclks[0],
+			.flags = CLK_PLL,
+		},
+		{
+			.name = "pll1_sysclk10",
+			.parent = &c6x_soc_pll1.sysclks[0],
+			.flags = CLK_PLL,
+		},
+		{
+			.name = "pll1_sysclk11",
+			.parent = &c6x_soc_pll1.sysclks[0],
+			.flags = CLK_PLL,
+		},
+		{
+			.name = "pll1_sysclk12",
+			.parent = &c6x_soc_pll1.sysclks[0],
+			.flags = CLK_PLL,
+		},
+		{
+			.name = "pll1_sysclk13",
+			.parent = &c6x_soc_pll1.sysclks[0],
+			.flags = CLK_PLL,
+		},
+		{
+			.name = "pll1_sysclk14",
+			.parent = &c6x_soc_pll1.sysclks[0],
+			.flags = CLK_PLL,
+		},
+		{
+			.name = "pll1_sysclk15",
+			.parent = &c6x_soc_pll1.sysclks[0],
+			.flags = CLK_PLL,
+		},
+		{
+			.name = "pll1_sysclk16",
+			.parent = &c6x_soc_pll1.sysclks[0],
+			.flags = CLK_PLL,
+		},
+	},
+};
+
+/* CPU core clock */
+struct clk c6x_core_clk = {
+	.name = "core",
+};
+
+/* miscellaneous IO clocks */
+struct clk c6x_i2c_clk = {
+	.name = "i2c",
+};
+
+struct clk c6x_watchdog_clk = {
+	.name = "watchdog",
+};
+
+struct clk c6x_mcbsp1_clk = {
+	.name = "mcbsp1",
+};
+
+struct clk c6x_mcbsp2_clk = {
+	.name = "mcbsp2",
+};
+
+struct clk c6x_mdio_clk = {
+	.name = "mdio",
+};
+
+
+#ifdef CONFIG_SOC_TMS320C6455
+static struct clk_lookup c6455_clks[] = {
+	CLK(NULL, "pll1", &c6x_soc_pll1.sysclks[0]),
+	CLK(NULL, "pll1_sysclk2", &c6x_soc_pll1.sysclks[2]),
+	CLK(NULL, "pll1_sysclk3", &c6x_soc_pll1.sysclks[3]),
+	CLK(NULL, "pll1_sysclk4", &c6x_soc_pll1.sysclks[4]),
+	CLK(NULL, "pll1_sysclk5", &c6x_soc_pll1.sysclks[5]),
+	CLK(NULL, "core", &c6x_core_clk),
+	CLK("i2c_davinci.1", NULL, &c6x_i2c_clk),
+	CLK("watchdog", NULL, &c6x_watchdog_clk),
+	CLK("2c81800.mdio", NULL, &c6x_mdio_clk),
+	CLK("", NULL, NULL)
+};
+
+
+static void __init c6455_setup_clocks(struct device_node *node)
+{
+	struct pll_data *pll = &c6x_soc_pll1;
+	struct clk *sysclks = pll->sysclks;
+
+	pll->flags = PLL_HAS_PRE | PLL_HAS_MUL;
+
+	sysclks[2].flags |= FIXED_DIV_PLL;
+	sysclks[2].div = 3;
+	sysclks[3].flags |= FIXED_DIV_PLL;
+	sysclks[3].div = 6;
+	sysclks[4].div = PLLDIV4;
+	sysclks[5].div = PLLDIV5;
+
+	c6x_core_clk.parent = &sysclks[0];
+	c6x_i2c_clk.parent = &sysclks[3];
+	c6x_watchdog_clk.parent = &sysclks[3];
+	c6x_mdio_clk.parent = &sysclks[3];
+
+	c6x_clks_init(c6455_clks);
+}
+#endif /* CONFIG_SOC_TMS320C6455 */
+
+#ifdef CONFIG_SOC_TMS320C6457
+static struct clk_lookup c6457_clks[] = {
+	CLK(NULL, "pll1", &c6x_soc_pll1.sysclks[0]),
+	CLK(NULL, "pll1_sysclk1", &c6x_soc_pll1.sysclks[1]),
+	CLK(NULL, "pll1_sysclk2", &c6x_soc_pll1.sysclks[2]),
+	CLK(NULL, "pll1_sysclk3", &c6x_soc_pll1.sysclks[3]),
+	CLK(NULL, "pll1_sysclk4", &c6x_soc_pll1.sysclks[4]),
+	CLK(NULL, "pll1_sysclk5", &c6x_soc_pll1.sysclks[5]),
+	CLK(NULL, "core", &c6x_core_clk),
+	CLK("i2c_davinci.1", NULL, &c6x_i2c_clk),
+	CLK("watchdog", NULL, &c6x_watchdog_clk),
+	CLK("2c81800.mdio", NULL, &c6x_mdio_clk),
+	CLK("", NULL, NULL)
+};
+
+static void __init c6457_setup_clocks(struct device_node *node)
+{
+	struct pll_data *pll = &c6x_soc_pll1;
+	struct clk *sysclks = pll->sysclks;
+
+	pll->flags = PLL_HAS_MUL | PLL_HAS_POST;
+
+	sysclks[1].flags |= FIXED_DIV_PLL;
+	sysclks[1].div = 1;
+	sysclks[2].flags |= FIXED_DIV_PLL;
+	sysclks[2].div = 3;
+	sysclks[3].flags |= FIXED_DIV_PLL;
+	sysclks[3].div = 6;
+	sysclks[4].div = PLLDIV4;
+	sysclks[5].div = PLLDIV5;
+
+	c6x_core_clk.parent = &sysclks[1];
+	c6x_i2c_clk.parent = &sysclks[3];
+	c6x_watchdog_clk.parent = &sysclks[5];
+	c6x_mdio_clk.parent = &sysclks[5];
+
+	c6x_clks_init(c6457_clks);
+}
+#endif /* CONFIG_SOC_TMS320C6455 */
+
+#ifdef CONFIG_SOC_TMS320C6472
+static struct clk_lookup c6472_clks[] = {
+	CLK(NULL, "pll1", &c6x_soc_pll1.sysclks[0]),
+	CLK(NULL, "pll1_sysclk1", &c6x_soc_pll1.sysclks[1]),
+	CLK(NULL, "pll1_sysclk2", &c6x_soc_pll1.sysclks[2]),
+	CLK(NULL, "pll1_sysclk3", &c6x_soc_pll1.sysclks[3]),
+	CLK(NULL, "pll1_sysclk4", &c6x_soc_pll1.sysclks[4]),
+	CLK(NULL, "pll1_sysclk5", &c6x_soc_pll1.sysclks[5]),
+	CLK(NULL, "pll1_sysclk6", &c6x_soc_pll1.sysclks[6]),
+	CLK(NULL, "pll1_sysclk7", &c6x_soc_pll1.sysclks[7]),
+	CLK(NULL, "pll1_sysclk8", &c6x_soc_pll1.sysclks[8]),
+	CLK(NULL, "pll1_sysclk9", &c6x_soc_pll1.sysclks[9]),
+	CLK(NULL, "pll1_sysclk10", &c6x_soc_pll1.sysclks[10]),
+	CLK(NULL, "core", &c6x_core_clk),
+	CLK("i2c_davinci.1", NULL, &c6x_i2c_clk),
+	CLK("watchdog", NULL, &c6x_watchdog_clk),
+	CLK("2c81800.mdio", NULL, &c6x_mdio_clk),
+	CLK("", NULL, NULL)
+};
+
+/* assumptions used for delay loop calculations */
+#define MIN_CLKIN1_KHz 15625
+#define MAX_CORE_KHz   700000
+#define MIN_PLLOUT_KHz MIN_CLKIN1_KHz
+
+static void __init c6472_setup_clocks(struct device_node *node)
+{
+	struct pll_data *pll = &c6x_soc_pll1;
+	struct clk *sysclks = pll->sysclks;
+	int i;
+
+	pll->flags = PLL_HAS_MUL;
+
+	for (i = 1; i <= 6; i++) {
+		sysclks[i].flags |= FIXED_DIV_PLL;
+		sysclks[i].div = 1;
+	}
+
+	sysclks[7].flags |= FIXED_DIV_PLL;
+	sysclks[7].div = 3;
+	sysclks[8].flags |= FIXED_DIV_PLL;
+	sysclks[8].div = 6;
+	sysclks[9].flags |= FIXED_DIV_PLL;
+	sysclks[9].div = 2;
+	sysclks[10].div = PLLDIV10;
+
+	c6x_core_clk.parent = &sysclks[get_coreid() + 1];
+	c6x_i2c_clk.parent = &sysclks[8];
+	c6x_watchdog_clk.parent = &sysclks[8];
+	c6x_mdio_clk.parent = &sysclks[5];
+
+	c6x_clks_init(c6472_clks);
+}
+#endif /* CONFIG_SOC_TMS320C6472 */
+
+
+#ifdef CONFIG_SOC_TMS320C6474
+static struct clk_lookup c6474_clks[] = {
+	CLK(NULL, "pll1", &c6x_soc_pll1.sysclks[0]),
+	CLK(NULL, "pll1_sysclk7", &c6x_soc_pll1.sysclks[7]),
+	CLK(NULL, "pll1_sysclk9", &c6x_soc_pll1.sysclks[9]),
+	CLK(NULL, "pll1_sysclk10", &c6x_soc_pll1.sysclks[10]),
+	CLK(NULL, "pll1_sysclk11", &c6x_soc_pll1.sysclks[11]),
+	CLK(NULL, "pll1_sysclk12", &c6x_soc_pll1.sysclks[12]),
+	CLK(NULL, "pll1_sysclk13", &c6x_soc_pll1.sysclks[13]),
+	CLK(NULL, "core", &c6x_core_clk),
+	CLK("i2c_davinci.1", NULL, &c6x_i2c_clk),
+	CLK("mcbsp.1", NULL, &c6x_mcbsp1_clk),
+	CLK("mcbsp.2", NULL, &c6x_mcbsp2_clk),
+	CLK("watchdog", NULL, &c6x_watchdog_clk),
+	CLK("2c81800.mdio", NULL, &c6x_mdio_clk),
+	CLK("", NULL, NULL)
+};
+
+static void __init c6474_setup_clocks(struct device_node *node)
+{
+	struct pll_data *pll = &c6x_soc_pll1;
+	struct clk *sysclks = pll->sysclks;
+
+	pll->flags = PLL_HAS_MUL;
+
+	sysclks[7].flags |= FIXED_DIV_PLL;
+	sysclks[7].div = 1;
+	sysclks[9].flags |= FIXED_DIV_PLL;
+	sysclks[9].div = 3;
+	sysclks[10].flags |= FIXED_DIV_PLL;
+	sysclks[10].div = 6;
+
+	sysclks[11].div = PLLDIV11;
+
+	sysclks[12].flags |= FIXED_DIV_PLL;
+	sysclks[12].div = 2;
+
+	sysclks[13].div = PLLDIV13;
+
+	c6x_core_clk.parent = &sysclks[7];
+	c6x_i2c_clk.parent = &sysclks[10];
+	c6x_watchdog_clk.parent = &sysclks[10];
+	c6x_mcbsp1_clk.parent = &sysclks[10];
+	c6x_mcbsp2_clk.parent = &sysclks[10];
+
+	c6x_clks_init(c6474_clks);
+}
+#endif /* CONFIG_SOC_TMS320C6474 */
+
+static struct of_device_id c6x_clkc_match[] __initdata = {
+#ifdef CONFIG_SOC_TMS320C6455
+	{ .compatible = "ti,c6455-pll", .data = c6455_setup_clocks },
+#endif
+#ifdef CONFIG_SOC_TMS320C6457
+	{ .compatible = "ti,c6457-pll", .data = c6457_setup_clocks },
+#endif
+#ifdef CONFIG_SOC_TMS320C6472
+	{ .compatible = "ti,c6472-pll", .data = c6472_setup_clocks },
+#endif
+#ifdef CONFIG_SOC_TMS320C6474
+	{ .compatible = "ti,c6474-pll", .data = c6474_setup_clocks },
+#endif
+	{ .compatible = "ti,c64x+pll" },
+	{}
+};
+
+void __init c64x_setup_clocks(void)
+{
+	void (*__setup_clocks)(struct device_node *np);
+	struct pll_data *pll = &c6x_soc_pll1;
+	struct device_node *node;
+	const struct of_device_id *id;
+	int err;
+	u32 val;
+
+	node = of_find_matching_node(NULL, c6x_clkc_match);
+	if (!node)
+		return;
+
+	pll->base = of_iomap(node, 0);
+	if (!pll->base)
+		goto out;
+
+	err = of_property_read_u32(node, "clock-frequency", &val);
+	if (err || val == 0) {
+		pr_err("%s: no clock-frequency found! Using %dMHz\n",
+		       node->full_name, (int)val / 1000000);
+		val = 25000000;
+	}
+	clkin1.rate = val;
+
+	err = of_property_read_u32(node, "ti,c64x+pll-bypass-delay", &val);
+	if (err)
+		val = 5000;
+	pll->bypass_delay = val;
+
+	err = of_property_read_u32(node, "ti,c64x+pll-reset-delay", &val);
+	if (err)
+		val = 30000;
+	pll->reset_delay = val;
+
+	err = of_property_read_u32(node, "ti,c64x+pll-lock-delay", &val);
+	if (err)
+		val = 30000;
+	pll->lock_delay = val;
+
+	/* id->data is a pointer to SoC-specific setup */
+	id = of_match_node(c6x_clkc_match, node);
+	if (id && id->data) {
+		__setup_clocks = id->data;
+		__setup_clocks(node);
+	}
+
+out:
+	of_node_put(node);
+}
diff --git a/arch/c6x/platforms/timer64.c b/arch/c6x/platforms/timer64.c
new file mode 100644
index 000000000000..03c03c249191
--- /dev/null
+++ b/arch/c6x/platforms/timer64.c
@@ -0,0 +1,244 @@
+/*
+ *  Copyright (C) 2010, 2011 Texas Instruments Incorporated
+ *  Contributed by: Mark Salter (msalter@redhat.com)
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+
+#include <linux/clockchips.h>
+#include <linux/interrupt.h>
+#include <linux/io.h>
+#include <linux/of.h>
+#include <linux/of_irq.h>
+#include <linux/of_address.h>
+#include <asm/soc.h>
+#include <asm/dscr.h>
+#include <asm/timer64.h>
+
+struct timer_regs {
+	u32	reserved0;
+	u32	emumgt;
+	u32	reserved1;
+	u32	reserved2;
+	u32	cntlo;
+	u32	cnthi;
+	u32	prdlo;
+	u32	prdhi;
+	u32	tcr;
+	u32	tgcr;
+	u32	wdtcr;
+};
+
+static struct timer_regs __iomem *timer;
+
+#define TCR_TSTATLO	     0x001
+#define TCR_INVOUTPLO	     0x002
+#define TCR_INVINPLO	     0x004
+#define TCR_CPLO	     0x008
+#define TCR_ENAMODELO_ONCE   0x040
+#define TCR_ENAMODELO_CONT   0x080
+#define TCR_ENAMODELO_MASK   0x0c0
+#define TCR_PWIDLO_MASK      0x030
+#define TCR_CLKSRCLO	     0x100
+#define TCR_TIENLO	     0x200
+#define TCR_TSTATHI	     (0x001 << 16)
+#define TCR_INVOUTPHI	     (0x002 << 16)
+#define TCR_CPHI	     (0x008 << 16)
+#define TCR_PWIDHI_MASK      (0x030 << 16)
+#define TCR_ENAMODEHI_ONCE   (0x040 << 16)
+#define TCR_ENAMODEHI_CONT   (0x080 << 16)
+#define TCR_ENAMODEHI_MASK   (0x0c0 << 16)
+
+#define TGCR_TIMLORS	     0x001
+#define TGCR_TIMHIRS	     0x002
+#define TGCR_TIMMODE_UD32    0x004
+#define TGCR_TIMMODE_WDT64   0x008
+#define TGCR_TIMMODE_CD32    0x00c
+#define TGCR_TIMMODE_MASK    0x00c
+#define TGCR_PSCHI_MASK      (0x00f << 8)
+#define TGCR_TDDRHI_MASK     (0x00f << 12)
+
+/*
+ * Timer clocks are divided down from the CPU clock
+ * The divisor is in the EMUMGTCLKSPD register
+ */
+#define TIMER_DIVISOR \
+	((soc_readl(&timer->emumgt) & (0xf << 16)) >> 16)
+
+#define TIMER64_RATE (c6x_core_freq / TIMER_DIVISOR)
+
+#define TIMER64_MODE_DISABLED 0
+#define TIMER64_MODE_ONE_SHOT TCR_ENAMODELO_ONCE
+#define TIMER64_MODE_PERIODIC TCR_ENAMODELO_CONT
+
+static int timer64_mode;
+static int timer64_devstate_id = -1;
+
+static void timer64_config(unsigned long period)
+{
+	u32 tcr = soc_readl(&timer->tcr) & ~TCR_ENAMODELO_MASK;
+
+	soc_writel(tcr, &timer->tcr);
+	soc_writel(period - 1, &timer->prdlo);
+	soc_writel(0, &timer->cntlo);
+	tcr |= timer64_mode;
+	soc_writel(tcr, &timer->tcr);
+}
+
+static void timer64_enable(void)
+{
+	u32 val;
+
+	if (timer64_devstate_id >= 0)
+		dscr_set_devstate(timer64_devstate_id, DSCR_DEVSTATE_ENABLED);
+
+	/* disable timer, reset count */
+	soc_writel(soc_readl(&timer->tcr) & ~TCR_ENAMODELO_MASK, &timer->tcr);
+	soc_writel(0, &timer->prdlo);
+
+	/* use internal clock and 1 cycle pulse width */
+	val = soc_readl(&timer->tcr);
+	soc_writel(val & ~(TCR_CLKSRCLO | TCR_PWIDLO_MASK), &timer->tcr);
+
+	/* dual 32-bit unchained mode */
+	val = soc_readl(&timer->tgcr) & ~TGCR_TIMMODE_MASK;
+	soc_writel(val, &timer->tgcr);
+	soc_writel(val | (TGCR_TIMLORS | TGCR_TIMMODE_UD32), &timer->tgcr);
+}
+
+static void timer64_disable(void)
+{
+	/* disable timer, reset count */
+	soc_writel(soc_readl(&timer->tcr) & ~TCR_ENAMODELO_MASK, &timer->tcr);
+	soc_writel(0, &timer->prdlo);
+
+	if (timer64_devstate_id >= 0)
+		dscr_set_devstate(timer64_devstate_id, DSCR_DEVSTATE_DISABLED);
+}
+
+static int next_event(unsigned long delta,
+		      struct clock_event_device *evt)
+{
+	timer64_config(delta);
+	return 0;
+}
+
+static void set_clock_mode(enum clock_event_mode mode,
+			   struct clock_event_device *evt)
+{
+	switch (mode) {
+	case CLOCK_EVT_MODE_PERIODIC:
+		timer64_enable();
+		timer64_mode = TIMER64_MODE_PERIODIC;
+		timer64_config(TIMER64_RATE / HZ);
+		break;
+	case CLOCK_EVT_MODE_ONESHOT:
+		timer64_enable();
+		timer64_mode = TIMER64_MODE_ONE_SHOT;
+		break;
+	case CLOCK_EVT_MODE_UNUSED:
+	case CLOCK_EVT_MODE_SHUTDOWN:
+		timer64_mode = TIMER64_MODE_DISABLED;
+		timer64_disable();
+		break;
+	case CLOCK_EVT_MODE_RESUME:
+		break;
+	}
+}
+
+static struct clock_event_device t64_clockevent_device = {
+	.name		= "TIMER64_EVT32_TIMER",
+	.features	= CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_FEAT_PERIODIC,
+	.rating		= 200,
+	.set_mode	= set_clock_mode,
+	.set_next_event	= next_event,
+};
+
+static irqreturn_t timer_interrupt(int irq, void *dev_id)
+{
+	struct clock_event_device *cd = &t64_clockevent_device;
+
+	cd->event_handler(cd);
+
+	return IRQ_HANDLED;
+}
+
+static struct irqaction timer_iact = {
+	.name		= "timer",
+	.flags		= IRQF_TIMER,
+	.handler	= timer_interrupt,
+	.dev_id		= &t64_clockevent_device,
+};
+
+void __init timer64_init(void)
+{
+	struct clock_event_device *cd = &t64_clockevent_device;
+	struct device_node *np, *first = NULL;
+	u32 val;
+	int err, found = 0;
+
+	for_each_compatible_node(np, NULL, "ti,c64x+timer64") {
+		err = of_property_read_u32(np, "ti,core-mask", &val);
+		if (!err) {
+			if (val & (1 << get_coreid())) {
+				found = 1;
+				break;
+			}
+		} else if (!first)
+			first = np;
+	}
+	if (!found) {
+		/* try first one with no core-mask */
+		if (first)
+			np = of_node_get(first);
+		else {
+			pr_debug("Cannot find ti,c64x+timer64 timer.\n");
+			return;
+		}
+	}
+
+	timer = of_iomap(np, 0);
+	if (!timer) {
+		pr_debug("%s: Cannot map timer registers.\n", np->full_name);
+		goto out;
+	}
+	pr_debug("%s: Timer registers=%p.\n", np->full_name, timer);
+
+	cd->irq	= irq_of_parse_and_map(np, 0);
+	if (cd->irq == NO_IRQ) {
+		pr_debug("%s: Cannot find interrupt.\n", np->full_name);
+		iounmap(timer);
+		goto out;
+	}
+
+	/* If there is a device state control, save the ID. */
+	err = of_property_read_u32(np, "ti,dscr-dev-enable", &val);
+	if (!err) {
+		timer64_devstate_id = val;
+
+		/*
+		 * It is necessary to enable the timer block here because
+		 * the TIMER_DIVISOR macro needs to read a timer register
+		 * to get the divisor.
+		 */
+		dscr_set_devstate(timer64_devstate_id, DSCR_DEVSTATE_ENABLED);
+	}
+
+	pr_debug("%s: Timer irq=%d.\n", np->full_name, cd->irq);
+
+	clockevents_calc_mult_shift(cd, c6x_core_freq / TIMER_DIVISOR, 5);
+
+	cd->max_delta_ns	= clockevent_delta2ns(0x7fffffff, cd);
+	cd->min_delta_ns	= clockevent_delta2ns(250, cd);
+
+	cd->cpumask		= cpumask_of(smp_processor_id());
+
+	clockevents_register_device(cd);
+	setup_irq(cd->irq, &timer_iact);
+
+out:
+	of_node_put(np);
+	return;
+}
diff --git a/arch/cris/Kconfig b/arch/cris/Kconfig
index 408b055c585f..b3abfb08aa5c 100644
--- a/arch/cris/Kconfig
+++ b/arch/cris/Kconfig
@@ -19,10 +19,6 @@ config GENERIC_CMOS_UPDATE
 config ARCH_USES_GETTIMEOFFSET
 	def_bool n
 
-config GENERIC_IOMAP
-       bool
-       default y
-
 config ARCH_HAS_ILOG2_U32
 	bool
 	default n
@@ -52,6 +48,7 @@ config CRIS
 	select HAVE_IDE
 	select HAVE_GENERIC_HARDIRQS
 	select GENERIC_IRQ_SHOW
+	select GENERIC_IOMAP
 
 config HZ
 	int
diff --git a/arch/cris/arch-v32/drivers/axisflashmap.c b/arch/cris/arch-v32/drivers/axisflashmap.c
index a2bde3744622..b34438e026be 100644
--- a/arch/cris/arch-v32/drivers/axisflashmap.c
+++ b/arch/cris/arch-v32/drivers/axisflashmap.c
@@ -404,8 +404,7 @@ static int __init init_axis_flash(void)
 		 */
 		int blockstat;
 		do {
-			blockstat = main_mtd->block_isbad(main_mtd,
-				ptable_sector);
+			blockstat = mtd_block_isbad(main_mtd, ptable_sector);
 			if (blockstat < 0)
 				ptable_sector = 0; /* read error */
 			else if (blockstat)
@@ -413,8 +412,8 @@ static int __init init_axis_flash(void)
 		} while (blockstat && ptable_sector);
 #endif
 		if (ptable_sector) {
-			main_mtd->read(main_mtd, ptable_sector, PAGESIZE,
-				&len, page);
+			mtd_read(main_mtd, ptable_sector, PAGESIZE, &len,
+				 page);
 			ptable_head = &((struct partitiontable *) page)->head;
 		}
 
diff --git a/arch/frv/Kconfig b/arch/frv/Kconfig
index c5e69abb4889..bbbf7927f238 100644
--- a/arch/frv/Kconfig
+++ b/arch/frv/Kconfig
@@ -317,6 +317,7 @@ config PCI
 	bool "Use PCI"
 	depends on MB93090_MB00
 	default y
+	select GENERIC_PCI_IOMAP
 	help
 	  Some FR-V systems (such as the MB93090-MB00 VDK) have PCI
 	  onboard. If you have one of these boards and you wish to use the PCI
diff --git a/arch/frv/include/asm/io.h b/arch/frv/include/asm/io.h
index ca7475e73b5e..8cb50a2fbcb2 100644
--- a/arch/frv/include/asm/io.h
+++ b/arch/frv/include/asm/io.h
@@ -21,6 +21,7 @@
 #include <asm/virtconvert.h>
 #include <asm/string.h>
 #include <asm/mb-regs.h>
+#include <asm-generic/pci_iomap.h>
 #include <linux/delay.h>
 
 /*
@@ -370,7 +371,6 @@ static inline void iowrite32_rep(void __iomem *p, const void *src, unsigned long
 
 /* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
 struct pci_dev;
-extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
 static inline void pci_iounmap(struct pci_dev *dev, void __iomem *p)
 {
 }
diff --git a/arch/frv/mb93090-mb00/Makefile b/arch/frv/mb93090-mb00/Makefile
index b73b542f8f48..21f1df1b378a 100644
--- a/arch/frv/mb93090-mb00/Makefile
+++ b/arch/frv/mb93090-mb00/Makefile
@@ -3,7 +3,7 @@
 #
 
 ifeq "$(CONFIG_PCI)" "y"
-obj-y := pci-frv.o pci-irq.o pci-vdk.o pci-iomap.o
+obj-y := pci-frv.o pci-irq.o pci-vdk.o
 
 ifeq "$(CONFIG_MMU)" "y"
 obj-y += pci-dma.o
diff --git a/arch/frv/mb93090-mb00/pci-iomap.c b/arch/frv/mb93090-mb00/pci-iomap.c
deleted file mode 100644
index 35f6df28351e..000000000000
--- a/arch/frv/mb93090-mb00/pci-iomap.c
+++ /dev/null
@@ -1,29 +0,0 @@
-/* pci-iomap.c: description
- *
- * Copyright (C) 2006 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-#include <linux/pci.h>
-#include <linux/module.h>
-
-void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
-{
-	resource_size_t start = pci_resource_start(dev, bar);
-	resource_size_t len = pci_resource_len(dev, bar);
-	unsigned long flags = pci_resource_flags(dev, bar);
-
-	if (!len || !start)
-		return NULL;
-
-	if ((flags & IORESOURCE_IO) || (flags & IORESOURCE_MEM))
-		return (void __iomem *) start;
-
-	return NULL;
-}
-
-EXPORT_SYMBOL(pci_iomap);
diff --git a/arch/hexagon/Kconfig b/arch/hexagon/Kconfig
index 02513c2dd5ec..9059e3905887 100644
--- a/arch/hexagon/Kconfig
+++ b/arch/hexagon/Kconfig
@@ -26,6 +26,7 @@ config HEXAGON
 	select HAVE_ARCH_KGDB
 	select HAVE_ARCH_TRACEHOOK
 	select NO_IOPORT
+	select GENERIC_IOMAP
 	# mostly generic routines, with some accelerated ones
 	---help---
 	  Qualcomm Hexagon is a processor architecture designed for high
@@ -73,9 +74,6 @@ config GENERIC_CSUM
 config GENERIC_IRQ_PROBE
 	def_bool y
 
-config GENERIC_IOMAP
-	def_bool y
-
 #config ZONE_DMA
 #	bool
 #	default y
diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
index 3b7a7c483785..bd7266903bf8 100644
--- a/arch/ia64/Kconfig
+++ b/arch/ia64/Kconfig
@@ -32,6 +32,7 @@ config IA64
 	select GENERIC_IRQ_SHOW
 	select ARCH_WANT_OPTIONAL_GPIOLIB
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
+	select GENERIC_IOMAP
 	default y
 	help
 	  The Itanium Processor Family is Intel's 64-bit successor to
@@ -105,10 +106,6 @@ config EFI
 	bool
 	default y
 
-config GENERIC_IOMAP
-	bool
-	default y
-
 config ARCH_CLOCKSOURCE_DATA
 	def_bool y
 
diff --git a/arch/ia64/include/asm/iommu.h b/arch/ia64/include/asm/iommu.h
index 105c93b00b1b..b6a809fa2995 100644
--- a/arch/ia64/include/asm/iommu.h
+++ b/arch/ia64/include/asm/iommu.h
@@ -11,10 +11,12 @@ extern void no_iommu_init(void);
 extern int force_iommu, no_iommu;
 extern int iommu_pass_through;
 extern int iommu_detected;
+extern int iommu_group_mf;
 #else
 #define iommu_pass_through	(0)
 #define no_iommu		(1)
 #define iommu_detected		(0)
+#define iommu_group_mf		(0)
 #endif
 extern void iommu_dma_init(void);
 extern void machvec_init(const char *name);
diff --git a/arch/ia64/include/asm/xen/interface.h b/arch/ia64/include/asm/xen/interface.h
index 1d2427d116e3..fbb519828aa1 100644
--- a/arch/ia64/include/asm/xen/interface.h
+++ b/arch/ia64/include/asm/xen/interface.h
@@ -71,7 +71,7 @@
 __DEFINE_GUEST_HANDLE(uchar, unsigned char);
 __DEFINE_GUEST_HANDLE(uint, unsigned int);
 __DEFINE_GUEST_HANDLE(ulong, unsigned long);
-__DEFINE_GUEST_HANDLE(u64, unsigned long);
+
 DEFINE_GUEST_HANDLE(char);
 DEFINE_GUEST_HANDLE(int);
 DEFINE_GUEST_HANDLE(long);
diff --git a/arch/ia64/kernel/pci-dma.c b/arch/ia64/kernel/pci-dma.c
index c16162c70860..eb1175720050 100644
--- a/arch/ia64/kernel/pci-dma.c
+++ b/arch/ia64/kernel/pci-dma.c
@@ -33,6 +33,7 @@ int force_iommu __read_mostly;
 #endif
 
 int iommu_pass_through;
+int iommu_group_mf;
 
 /* Dummy device used for NULL arguments (normally ISA). Better would
    be probably a smaller DMA mask, but this is bug-to-bug compatible
diff --git a/arch/ia64/kvm/kvm-ia64.c b/arch/ia64/kvm/kvm-ia64.c
index 43f4c92816ef..405052002493 100644
--- a/arch/ia64/kvm/kvm-ia64.c
+++ b/arch/ia64/kvm/kvm-ia64.c
@@ -774,13 +774,13 @@ struct kvm *kvm_arch_alloc_vm(void)
 	return kvm;
 }
 
-struct kvm_io_range {
+struct kvm_ia64_io_range {
 	unsigned long start;
 	unsigned long size;
 	unsigned long type;
 };
 
-static const struct kvm_io_range io_ranges[] = {
+static const struct kvm_ia64_io_range io_ranges[] = {
 	{VGA_IO_START, VGA_IO_SIZE, GPFN_FRAME_BUFFER},
 	{MMIO_START, MMIO_SIZE, GPFN_LOW_MMIO},
 	{LEGACY_IO_START, LEGACY_IO_SIZE, GPFN_LEGACY_IO},
@@ -1366,14 +1366,12 @@ static void kvm_release_vm_pages(struct kvm *kvm)
 {
 	struct kvm_memslots *slots;
 	struct kvm_memory_slot *memslot;
-	int i, j;
+	int j;
 	unsigned long base_gfn;
 
 	slots = kvm_memslots(kvm);
-	for (i = 0; i < slots->nmemslots; i++) {
-		memslot = &slots->memslots[i];
+	kvm_for_each_memslot(memslot, slots) {
 		base_gfn = memslot->base_gfn;
-
 		for (j = 0; j < memslot->npages; j++) {
 			if (memslot->rmap[j])
 				put_page((struct page *)memslot->rmap[j]);
@@ -1820,7 +1818,7 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
 	if (log->slot >= KVM_MEMORY_SLOTS)
 		goto out;
 
-	memslot = &kvm->memslots->memslots[log->slot];
+	memslot = id_to_memslot(kvm->memslots, log->slot);
 	r = -ENOENT;
 	if (!memslot->dirty_bitmap)
 		goto out;
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
index 81fdaa72c540..99c363617f27 100644
--- a/arch/m68k/Kconfig
+++ b/arch/m68k/Kconfig
@@ -37,9 +37,6 @@ config GENERIC_CALIBRATE_DELAY
 	bool
 	default y
 
-config GENERIC_IOMAP
-	def_bool MMU
-
 config GENERIC_CSUM
 	bool
 
@@ -81,6 +78,7 @@ source "kernel/Kconfig.freezer"
 config MMU
 	bool "MMU-based Paged Memory Management Support"
 	default y
+	select GENERIC_IOMAP
 	help
 	  Select if you want MMU-based virtualised addressing space
 	  support by paged memory management. If unsure, say 'Y'.
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
index e446bab2427b..f0eead74fff6 100644
--- a/arch/microblaze/Kconfig
+++ b/arch/microblaze/Kconfig
@@ -17,6 +17,7 @@ config MICROBLAZE
 	select HAVE_GENERIC_HARDIRQS
 	select GENERIC_IRQ_PROBE
 	select GENERIC_IRQ_SHOW
+	select GENERIC_PCI_IOMAP
 
 config SWAP
 	def_bool n
diff --git a/arch/microblaze/include/asm/irq.h b/arch/microblaze/include/asm/irq.h
index cc54187f3d38..a175132e4496 100644
--- a/arch/microblaze/include/asm/irq.h
+++ b/arch/microblaze/include/asm/irq.h
@@ -9,7 +9,14 @@
 #ifndef _ASM_MICROBLAZE_IRQ_H
 #define _ASM_MICROBLAZE_IRQ_H
 
-#define NR_IRQS 32
+
+/*
+ * Linux IRQ# is currently offset by one to map to the hardware
+ * irq number. So hardware IRQ0 maps to Linux irq 1.
+ */
+#define NO_IRQ_OFFSET	1
+#define IRQ_OFFSET	NO_IRQ_OFFSET
+#define NR_IRQS		(32 + IRQ_OFFSET)
 #include <asm-generic/irq.h>
 
 /* This type is the placeholder for a hardware interrupt number. It has to
@@ -20,8 +27,6 @@ typedef unsigned long irq_hw_number_t;
 
 extern unsigned int nr_irq;
 
-#define NO_IRQ (-1)
-
 struct pt_regs;
 extern void do_IRQ(struct pt_regs *regs);
 
diff --git a/arch/microblaze/include/asm/page.h b/arch/microblaze/include/asm/page.h
index ed9d0f6e2cdb..a25e6b5e2ad4 100644
--- a/arch/microblaze/include/asm/page.h
+++ b/arch/microblaze/include/asm/page.h
@@ -174,15 +174,8 @@ extern int page_is_ram(unsigned long pfn);
 
 #define	virt_addr_valid(vaddr)	(pfn_valid(virt_to_pfn(vaddr)))
 
-
-#  ifndef CONFIG_MMU
-#  define __pa(vaddr)	((unsigned long) (vaddr))
-#  define __va(paddr)	((void *) (paddr))
-#  else /* CONFIG_MMU */
-#  define __pa(x)	__virt_to_phys((unsigned long)(x))
-#  define __va(x)	((void *)__phys_to_virt((unsigned long)(x)))
-#  endif /* CONFIG_MMU */
-
+# define __pa(x)	__virt_to_phys((unsigned long)(x))
+# define __va(x)	((void *)__phys_to_virt((unsigned long)(x)))
 
 /* Convert between virtual and physical address for MMU. */
 /* Handle MicroBlaze processor with virtual memory. */
diff --git a/arch/microblaze/include/asm/setup.h b/arch/microblaze/include/asm/setup.h
index 904e5ef6a11b..6c72ed7eba98 100644
--- a/arch/microblaze/include/asm/setup.h
+++ b/arch/microblaze/include/asm/setup.h
@@ -26,12 +26,6 @@ int setup_early_printk(char *opt);
 void remap_early_printk(void);
 void disable_early_printk(void);
 
-#if defined(CONFIG_EARLY_PRINTK)
-#define eprintk early_printk
-#else
-#define eprintk printk
-#endif
-
 void heartbeat(void);
 void setup_heartbeat(void);
 
diff --git a/arch/microblaze/include/asm/unistd.h b/arch/microblaze/include/asm/unistd.h
index 7d7092b917ac..d20ffbc86beb 100644
--- a/arch/microblaze/include/asm/unistd.h
+++ b/arch/microblaze/include/asm/unistd.h
@@ -391,8 +391,11 @@
 #define __NR_clock_adjtime	373
 #define __NR_syncfs		374
 #define __NR_setns		375
+#define __NR_sendmmsg		376
+#define __NR_process_vm_readv	377
+#define __NR_process_vm_writev	378
 
-#define __NR_syscalls		376
+#define __NR_syscalls		379
 
 #ifdef __KERNEL__
 #ifndef __ASSEMBLY__
diff --git a/arch/microblaze/kernel/early_printk.c b/arch/microblaze/kernel/early_printk.c
index d26d92d47754..8356e47631c4 100644
--- a/arch/microblaze/kernel/early_printk.c
+++ b/arch/microblaze/kernel/early_printk.c
@@ -50,9 +50,9 @@ static void early_printk_uartlite_write(struct console *unused,
 					const char *s, unsigned n)
 {
 	while (*s && n-- > 0) {
-		early_printk_uartlite_putc(*s);
 		if (*s == '\n')
 			early_printk_uartlite_putc('\r');
+		early_printk_uartlite_putc(*s);
 		s++;
 	}
 }
@@ -94,9 +94,9 @@ static void early_printk_uart16550_write(struct console *unused,
 					const char *s, unsigned n)
 {
 	while (*s && n-- > 0) {
-		early_printk_uart16550_putc(*s);
 		if (*s == '\n')
 			early_printk_uart16550_putc('\r');
+		early_printk_uart16550_putc(*s);
 		s++;
 	}
 }
diff --git a/arch/microblaze/kernel/entry.S b/arch/microblaze/kernel/entry.S
index ca15bc5c7449..66e34a3bfe1b 100644
--- a/arch/microblaze/kernel/entry.S
+++ b/arch/microblaze/kernel/entry.S
@@ -468,7 +468,7 @@ C_ENTRY(sys_fork_wrapper):
 	addi	r5, r0, SIGCHLD			/* Arg 0: flags */
 	lwi	r6, r1, PT_R1	/* Arg 1: child SP (use parent's) */
 	addik	r7, r1, 0			/* Arg 2: parent context */
-	add	r8. r0, r0			/* Arg 3: (unused) */
+	add	r8, r0, r0			/* Arg 3: (unused) */
 	add	r9, r0, r0;			/* Arg 4: (unused) */
 	brid	do_fork		/* Do real work (tail-call) */
 	add	r10, r0, r0;			/* Arg 5: (unused) */
diff --git a/arch/microblaze/kernel/intc.c b/arch/microblaze/kernel/intc.c
index eb41441c7fd0..44b177e2ab12 100644
--- a/arch/microblaze/kernel/intc.c
+++ b/arch/microblaze/kernel/intc.c
@@ -42,8 +42,9 @@ unsigned int nr_irq;
 
 static void intc_enable_or_unmask(struct irq_data *d)
 {
-	unsigned long mask = 1 << d->irq;
-	pr_debug("enable_or_unmask: %d\n", d->irq);
+	unsigned long mask = 1 << d->hwirq;
+
+	pr_debug("enable_or_unmask: %ld\n", d->hwirq);
 	out_be32(INTC_BASE + SIE, mask);
 
 	/* ack level irqs because they can't be acked during
@@ -56,20 +57,21 @@ static void intc_enable_or_unmask(struct irq_data *d)
 
 static void intc_disable_or_mask(struct irq_data *d)
 {
-	pr_debug("disable: %d\n", d->irq);
-	out_be32(INTC_BASE + CIE, 1 << d->irq);
+	pr_debug("disable: %ld\n", d->hwirq);
+	out_be32(INTC_BASE + CIE, 1 << d->hwirq);
 }
 
 static void intc_ack(struct irq_data *d)
 {
-	pr_debug("ack: %d\n", d->irq);
-	out_be32(INTC_BASE + IAR, 1 << d->irq);
+	pr_debug("ack: %ld\n", d->hwirq);
+	out_be32(INTC_BASE + IAR, 1 << d->hwirq);
 }
 
 static void intc_mask_ack(struct irq_data *d)
 {
-	unsigned long mask = 1 << d->irq;
-	pr_debug("disable_and_ack: %d\n", d->irq);
+	unsigned long mask = 1 << d->hwirq;
+
+	pr_debug("disable_and_ack: %ld\n", d->hwirq);
 	out_be32(INTC_BASE + CIE, mask);
 	out_be32(INTC_BASE + IAR, mask);
 }
@@ -91,7 +93,7 @@ unsigned int get_irq(struct pt_regs *regs)
 	 * order to handle multiple interrupt controllers. It currently
 	 * is hardcoded to check for interrupts only on the first INTC.
 	 */
-	irq = in_be32(INTC_BASE + IVR);
+	irq = in_be32(INTC_BASE + IVR) + NO_IRQ_OFFSET;
 	pr_debug("get_irq: %d\n", irq);
 
 	return irq;
@@ -99,7 +101,7 @@ unsigned int get_irq(struct pt_regs *regs)
 
 void __init init_IRQ(void)
 {
-	u32 i, j, intr_type;
+	u32 i, intr_mask;
 	struct device_node *intc = NULL;
 #ifdef CONFIG_SELFMOD_INTC
 	unsigned int intc_baseaddr = 0;
@@ -113,35 +115,24 @@ void __init init_IRQ(void)
 				0
 			};
 #endif
-	const char * const intc_list[] = {
-				"xlnx,xps-intc-1.00.a",
-				NULL
-			};
-
-	for (j = 0; intc_list[j] != NULL; j++) {
-		intc = of_find_compatible_node(NULL, NULL, intc_list[j]);
-		if (intc)
-			break;
-	}
+	intc = of_find_compatible_node(NULL, NULL, "xlnx,xps-intc-1.00.a");
 	BUG_ON(!intc);
 
-	intc_baseaddr = be32_to_cpup(of_get_property(intc,
-								"reg", NULL));
+	intc_baseaddr = be32_to_cpup(of_get_property(intc, "reg", NULL));
 	intc_baseaddr = (unsigned long) ioremap(intc_baseaddr, PAGE_SIZE);
 	nr_irq = be32_to_cpup(of_get_property(intc,
 						"xlnx,num-intr-inputs", NULL));
 
-	intr_type =
-		be32_to_cpup(of_get_property(intc,
-						"xlnx,kind-of-intr", NULL));
-	if (intr_type > (u32)((1ULL << nr_irq) - 1))
+	intr_mask =
+		be32_to_cpup(of_get_property(intc, "xlnx,kind-of-intr", NULL));
+	if (intr_mask > (u32)((1ULL << nr_irq) - 1))
 		printk(KERN_INFO " ERROR: Mismatch in kind-of-intr param\n");
 
 #ifdef CONFIG_SELFMOD_INTC
 	selfmod_function((int *) arr_func, intc_baseaddr);
 #endif
-	printk(KERN_INFO "%s #0 at 0x%08x, num_irq=%d, edge=0x%x\n",
-		intc_list[j], intc_baseaddr, nr_irq, intr_type);
+	printk(KERN_INFO "XPS intc #0 at 0x%08x, num_irq=%d, edge=0x%x\n",
+		intc_baseaddr, nr_irq, intr_mask);
 
 	/*
 	 * Disable all external interrupts until they are
@@ -155,8 +146,8 @@ void __init init_IRQ(void)
 	/* Turn on the Master Enable. */
 	out_be32(intc_baseaddr + MER, MER_HIE | MER_ME);
 
-	for (i = 0; i < nr_irq; ++i) {
-		if (intr_type & (0x00000001 << i)) {
+	for (i = IRQ_OFFSET; i < (nr_irq + IRQ_OFFSET); ++i) {
+		if (intr_mask & (0x00000001 << (i - IRQ_OFFSET))) {
 			irq_set_chip_and_handler_name(i, &intc_dev,
 				handle_edge_irq, "edge");
 			irq_clear_status_flags(i, IRQ_LEVEL);
@@ -165,5 +156,6 @@ void __init init_IRQ(void)
 				handle_level_irq, "level");
 			irq_set_status_flags(i, IRQ_LEVEL);
 		}
+		irq_get_irq_data(i)->hwirq = i - IRQ_OFFSET;
 	}
 }
diff --git a/arch/microblaze/kernel/irq.c b/arch/microblaze/kernel/irq.c
index e5d63a89b9b2..bbebcae72c02 100644
--- a/arch/microblaze/kernel/irq.c
+++ b/arch/microblaze/kernel/irq.c
@@ -33,11 +33,12 @@ void __irq_entry do_IRQ(struct pt_regs *regs)
 	irq_enter();
 	irq = get_irq(regs);
 next_irq:
-	BUG_ON(irq == -1U);
-	generic_handle_irq(irq);
+	BUG_ON(!irq);
+	/* Substract 1 because of get_irq */
+	generic_handle_irq(irq + IRQ_OFFSET - NO_IRQ_OFFSET);
 
 	irq = get_irq(regs);
-	if (irq != -1U) {
+	if (irq) {
 		pr_debug("next irq: %d\n", irq);
 		++concurrent_irq;
 		goto next_irq;
@@ -52,13 +53,13 @@ next_irq:
   intc without any cascades or any connection that's why mapping is 1:1 */
 unsigned int irq_create_mapping(struct irq_host *host, irq_hw_number_t hwirq)
 {
-	return hwirq;
+	return hwirq + IRQ_OFFSET;
 }
 EXPORT_SYMBOL_GPL(irq_create_mapping);
 
 unsigned int irq_create_of_mapping(struct device_node *controller,
 				   const u32 *intspec, unsigned int intsize)
 {
-	return intspec[0];
+	return intspec[0] + IRQ_OFFSET;
 }
 EXPORT_SYMBOL_GPL(irq_create_of_mapping);
diff --git a/arch/microblaze/kernel/module.c b/arch/microblaze/kernel/module.c
index 142426f631bb..f39257a5abcf 100644
--- a/arch/microblaze/kernel/module.c
+++ b/arch/microblaze/kernel/module.c
@@ -100,7 +100,7 @@ int apply_relocate_add(Elf32_Shdr *sechdrs, const char *strtab,
 			break;
 
 		case R_MICROBLAZE_64_NONE:
-			pr_debug("R_MICROBLAZE_NONE\n");
+			pr_debug("R_MICROBLAZE_64_NONE\n");
 			break;
 
 		case R_MICROBLAZE_NONE:
diff --git a/arch/microblaze/kernel/setup.c b/arch/microblaze/kernel/setup.c
index 0e654a12d37e..604cd9dd1333 100644
--- a/arch/microblaze/kernel/setup.c
+++ b/arch/microblaze/kernel/setup.c
@@ -145,32 +145,32 @@ void __init machine_early_init(const char *cmdline, unsigned int ram,
 	setup_early_printk(NULL);
 #endif
 
-	eprintk("Ramdisk addr 0x%08x, ", ram);
+	printk("Ramdisk addr 0x%08x, ", ram);
 	if (fdt)
-		eprintk("FDT at 0x%08x\n", fdt);
+		printk("FDT at 0x%08x\n", fdt);
 	else
-		eprintk("Compiled-in FDT at 0x%08x\n",
+		printk("Compiled-in FDT at 0x%08x\n",
 					(unsigned int)_fdt_start);
 
 #ifdef CONFIG_MTD_UCLINUX
-	eprintk("Found romfs @ 0x%08x (0x%08x)\n",
+	printk("Found romfs @ 0x%08x (0x%08x)\n",
 			romfs_base, romfs_size);
-	eprintk("#### klimit %p ####\n", old_klimit);
+	printk("#### klimit %p ####\n", old_klimit);
 	BUG_ON(romfs_size < 0); /* What else can we do? */
 
-	eprintk("Moved 0x%08x bytes from 0x%08x to 0x%08x\n",
+	printk("Moved 0x%08x bytes from 0x%08x to 0x%08x\n",
 			romfs_size, romfs_base, (unsigned)&_ebss);
 
-	eprintk("New klimit: 0x%08x\n", (unsigned)klimit);
+	printk("New klimit: 0x%08x\n", (unsigned)klimit);
 #endif
 
 #if CONFIG_XILINX_MICROBLAZE0_USE_MSR_INSTR
 	if (msr)
-		eprintk("!!!Your kernel has setup MSR instruction but "
+		printk("!!!Your kernel has setup MSR instruction but "
 				"CPU don't have it %x\n", msr);
 #else
 	if (!msr)
-		eprintk("!!!Your kernel not setup MSR instruction but "
+		printk("!!!Your kernel not setup MSR instruction but "
 				"CPU have it %x\n", msr);
 #endif
 
diff --git a/arch/microblaze/kernel/syscall_table.S b/arch/microblaze/kernel/syscall_table.S
index 8789daa2a346..6a2b294ef6dc 100644
--- a/arch/microblaze/kernel/syscall_table.S
+++ b/arch/microblaze/kernel/syscall_table.S
@@ -380,3 +380,6 @@ ENTRY(sys_call_table)
 	.long sys_clock_adjtime
 	.long sys_syncfs
 	.long sys_setns			/* 375 */
+	.long sys_sendmmsg
+	.long sys_process_vm_readv
+	.long sys_process_vm_writev
diff --git a/arch/microblaze/kernel/timer.c b/arch/microblaze/kernel/timer.c
index af74b1113aab..3cb0bf640135 100644
--- a/arch/microblaze/kernel/timer.c
+++ b/arch/microblaze/kernel/timer.c
@@ -243,7 +243,7 @@ static int timer_initialized;
 
 void __init time_init(void)
 {
-	u32 irq, i = 0;
+	u32 irq;
 	u32 timer_num = 1;
 	struct device_node *timer = NULL;
 	const void *prop;
@@ -258,33 +258,24 @@ void __init time_init(void)
 				0
 			};
 #endif
-	const char * const timer_list[] = {
-		"xlnx,xps-timer-1.00.a",
-		NULL
-	};
-
-	for (i = 0; timer_list[i] != NULL; i++) {
-		timer = of_find_compatible_node(NULL, NULL, timer_list[i]);
-		if (timer)
-			break;
-	}
+	timer = of_find_compatible_node(NULL, NULL, "xlnx,xps-timer-1.00.a");
 	BUG_ON(!timer);
 
 	timer_baseaddr = be32_to_cpup(of_get_property(timer, "reg", NULL));
 	timer_baseaddr = (unsigned long) ioremap(timer_baseaddr, PAGE_SIZE);
-	irq = be32_to_cpup(of_get_property(timer, "interrupts", NULL));
+	irq = irq_of_parse_and_map(timer, 0);
 	timer_num = be32_to_cpup(of_get_property(timer,
 						"xlnx,one-timer-only", NULL));
 	if (timer_num) {
-		eprintk(KERN_EMERG "Please enable two timers in HW\n");
+		printk(KERN_EMERG "Please enable two timers in HW\n");
 		BUG();
 	}
 
 #ifdef CONFIG_SELFMOD_TIMER
 	selfmod_function((int *) arr_func, timer_baseaddr);
 #endif
-	printk(KERN_INFO "%s #0 at 0x%08x, irq=%d\n",
-		timer_list[i], timer_baseaddr, irq);
+	printk(KERN_INFO "XPS timer #0 at 0x%08x, irq=%d\n",
+		timer_baseaddr, irq);
 
 	/* If there is clock-frequency property than use it */
 	prop = of_get_property(timer, "clock-frequency", NULL);
diff --git a/arch/microblaze/lib/Makefile b/arch/microblaze/lib/Makefile
index c13067b243c3..844960e8ae18 100644
--- a/arch/microblaze/lib/Makefile
+++ b/arch/microblaze/lib/Makefile
@@ -20,6 +20,7 @@ lib-y += uaccess_old.o
 
 lib-y += ashldi3.o
 lib-y += ashrdi3.o
+lib-y += cmpdi2.o
 lib-y += divsi3.o
 lib-y += lshrdi3.o
 lib-y += modsi3.o
diff --git a/arch/microblaze/lib/cmpdi2.c b/arch/microblaze/lib/cmpdi2.c
new file mode 100644
index 000000000000..a708400ea7b7
--- /dev/null
+++ b/arch/microblaze/lib/cmpdi2.c
@@ -0,0 +1,26 @@
+#include <linux/module.h>
+
+#include "libgcc.h"
+
+word_type __cmpdi2(long long a, long long b)
+{
+	const DWunion au = {
+		.ll = a
+	};
+	const DWunion bu = {
+		.ll = b
+	};
+
+	if (au.s.high < bu.s.high)
+		return 0;
+	else if (au.s.high > bu.s.high)
+		return 2;
+
+	if ((unsigned int) au.s.low < (unsigned int) bu.s.low)
+		return 0;
+	else if ((unsigned int) au.s.low > (unsigned int) bu.s.low)
+		return 2;
+
+	return 1;
+}
+EXPORT_SYMBOL(__cmpdi2);
diff --git a/arch/microblaze/pci/iomap.c b/arch/microblaze/pci/iomap.c
index 57acda852f5a..b07abbac0319 100644
--- a/arch/microblaze/pci/iomap.c
+++ b/arch/microblaze/pci/iomap.c
@@ -10,25 +10,6 @@
 #include <asm/io.h>
 #include <asm/pci-bridge.h>
 
-void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
-{
-	resource_size_t start = pci_resource_start(dev, bar);
-	resource_size_t len = pci_resource_len(dev, bar);
-	unsigned long flags = pci_resource_flags(dev, bar);
-
-	if (!len)
-		return NULL;
-	if (max && len > max)
-		len = max;
-	if (flags & IORESOURCE_IO)
-		return ioport_map(start, len);
-	if (flags & IORESOURCE_MEM)
-		return ioremap(start, len);
-	/* What? */
-	return NULL;
-}
-EXPORT_SYMBOL(pci_iomap);
-
 void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
 {
 	if (isa_vaddr_is_ioport(addr))
diff --git a/arch/microblaze/pci/pci-common.c b/arch/microblaze/pci/pci-common.c
index db841c7b9d5b..0d71b2ed8107 100644
--- a/arch/microblaze/pci/pci-common.c
+++ b/arch/microblaze/pci/pci-common.c
@@ -242,7 +242,7 @@ int pci_read_irq_line(struct pci_dev *pci_dev)
 			 line, pin);
 
 		virq = irq_create_mapping(NULL, line);
-		if (virq != NO_IRQ)
+		if (virq)
 			irq_set_irq_type(virq, IRQ_TYPE_LEVEL_LOW);
 	} else {
 		pr_debug(" Got one, spec %d cells (0x%08x 0x%08x...) on %s\n",
@@ -253,7 +253,7 @@ int pci_read_irq_line(struct pci_dev *pci_dev)
 		virq = irq_create_of_mapping(oirq.controller, oirq.specifier,
 					     oirq.size);
 	}
-	if (virq == NO_IRQ) {
+	if (!virq) {
 		pr_debug(" Failed to map !\n");
 		return -1;
 	}
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index a7636d3ddc6a..29d92187ff30 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -16,6 +16,7 @@ config MIPS
 	select HAVE_FUNCTION_GRAPH_TRACER
 	select HAVE_KPROBES
 	select HAVE_KRETPROBES
+	select ARCH_BINFMT_ELF_RANDOMIZE_PIE
 	select RTC_LIB if !MACH_LOONGSON
 	select GENERIC_ATOMIC64 if !64BIT
 	select HAVE_DMA_ATTRS
@@ -2316,6 +2317,7 @@ config PCI
 	bool "Support for PCI controller"
 	depends on HW_HAS_PCI
 	select PCI_DOMAINS
+	select GENERIC_PCI_IOMAP
 	help
 	  Find out whether you have a PCI motherboard. PCI is the name of a
 	  bus system, i.e. the way the CPU talks to the other stuff inside
diff --git a/arch/mips/bcm63xx/boards/board_bcm963xx.c b/arch/mips/bcm63xx/boards/board_bcm963xx.c
index 40b223b603be..c22385400fc9 100644
--- a/arch/mips/bcm63xx/boards/board_bcm963xx.c
+++ b/arch/mips/bcm63xx/boards/board_bcm963xx.c
@@ -834,10 +834,13 @@ static struct mtd_partition mtd_partitions[] = {
 	}
 };
 
+static const char *bcm63xx_part_types[] = { "bcm63xxpart", NULL };
+
 static struct physmap_flash_data flash_data = {
 	.width			= 2,
 	.nr_parts		= ARRAY_SIZE(mtd_partitions),
 	.parts			= mtd_partitions,
+	.part_probe_types	= bcm63xx_part_types,
 };
 
 static struct resource mtd_resources[] = {
diff --git a/arch/mips/include/asm/mach-bcm63xx/bcm963xx_tag.h b/arch/mips/include/asm/mach-bcm63xx/bcm963xx_tag.h
index ed72e6a26b73..1e6b587f62c9 100644
--- a/arch/mips/include/asm/mach-bcm63xx/bcm963xx_tag.h
+++ b/arch/mips/include/asm/mach-bcm63xx/bcm963xx_tag.h
@@ -16,7 +16,6 @@
 #define TAGINFO1_LEN		30	/* Length of vendor information field1 in tag */
 #define FLASHLAYOUTVER_LEN	4	/* Length of Flash Layout Version String tag */
 #define TAGINFO2_LEN		16	/* Length of vendor information field2 in tag */
-#define CRC_LEN			4	/* Length of CRC in bytes */
 #define ALTTAGINFO_LEN		54	/* Alternate length for vendor information; Pirelli */
 
 #define NUM_PIRELLI		2
@@ -77,19 +76,19 @@ struct bcm_tag {
 	/* 192-195: Version flash layout */
 	char flash_layout_ver[FLASHLAYOUTVER_LEN];
 	/* 196-199: kernel+rootfs CRC32 */
-	char fskernel_crc[CRC_LEN];
+	__u32 fskernel_crc;
 	/* 200-215: Unused except on Alice Gate where is is information */
 	char information2[TAGINFO2_LEN];
 	/* 216-219: CRC32 of image less imagetag (kernel for Alice Gate) */
-	char image_crc[CRC_LEN];
+	__u32 image_crc;
 	/* 220-223: CRC32 of rootfs partition */
-	char rootfs_crc[CRC_LEN];
+	__u32 rootfs_crc;
 	/* 224-227: CRC32 of kernel partition */
-	char kernel_crc[CRC_LEN];
+	__u32 kernel_crc;
 	/* 228-235: Unused at present */
 	char reserved1[8];
 	/* 236-239: CRC32 of header excluding last 20 bytes */
-	char header_crc[CRC_LEN];
+	__u32 header_crc;
 	/* 240-255: Unused at present */
 	char reserved2[16];
 };
diff --git a/arch/mips/lib/iomap-pci.c b/arch/mips/lib/iomap-pci.c
index 2ab899c4b4ce..2635b1a96333 100644
--- a/arch/mips/lib/iomap-pci.c
+++ b/arch/mips/lib/iomap-pci.c
@@ -40,32 +40,6 @@ static void __iomem *ioport_map_pci(struct pci_dev *dev,
 	return (void __iomem *) (ctrl->io_map_base + port);
 }
 
-/*
- * Create a virtual mapping cookie for a PCI BAR (memory or IO)
- */
-void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
-{
-	resource_size_t start = pci_resource_start(dev, bar);
-	resource_size_t len = pci_resource_len(dev, bar);
-	unsigned long flags = pci_resource_flags(dev, bar);
-
-	if (!len || !start)
-		return NULL;
-	if (maxlen && len > maxlen)
-		len = maxlen;
-	if (flags & IORESOURCE_IO)
-		return ioport_map_pci(dev, start, len);
-	if (flags & IORESOURCE_MEM) {
-		if (flags & IORESOURCE_CACHEABLE)
-			return ioremap(start, len);
-		return ioremap_nocache(start, len);
-	}
-	/* What? */
-	return NULL;
-}
-
-EXPORT_SYMBOL(pci_iomap);
-
 void pci_iounmap(struct pci_dev *dev, void __iomem * addr)
 {
 	iounmap(addr);
diff --git a/arch/mn10300/Kconfig b/arch/mn10300/Kconfig
index 438db84a1f7c..8f1c40d5817e 100644
--- a/arch/mn10300/Kconfig
+++ b/arch/mn10300/Kconfig
@@ -252,6 +252,7 @@ config PCI
 	bool "Use PCI"
 	depends on MN10300_UNIT_ASB2305
 	default y
+	select GENERIC_PCI_IOMAP
 	help
 	  Some systems (such as the ASB2305) have PCI onboard. If you have one
 	  of these boards and you wish to use the PCI facilities, say Y here.
diff --git a/arch/mn10300/include/asm/io.h b/arch/mn10300/include/asm/io.h
index 787255da744e..139df8c53de8 100644
--- a/arch/mn10300/include/asm/io.h
+++ b/arch/mn10300/include/asm/io.h
@@ -229,7 +229,6 @@ static inline void outsl(unsigned long addr, const void *buffer, int count)
 
 /* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
 struct pci_dev;
-extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
 static inline void pci_iounmap(struct pci_dev *dev, void __iomem *p)
 {
 }
@@ -251,15 +250,15 @@ static inline void *phys_to_virt(unsigned long address)
 /*
  * Change "struct page" to physical address.
  */
-static inline void *__ioremap(unsigned long offset, unsigned long size,
-			      unsigned long flags)
+static inline void __iomem *__ioremap(unsigned long offset, unsigned long size,
+				      unsigned long flags)
 {
-	return (void *) offset;
+	return (void __iomem *) offset;
 }
 
-static inline void *ioremap(unsigned long offset, unsigned long size)
+static inline void __iomem *ioremap(unsigned long offset, unsigned long size)
 {
-	return (void *) offset;
+	return (void __iomem *) offset;
 }
 
 /*
@@ -267,14 +266,14 @@ static inline void *ioremap(unsigned long offset, unsigned long size)
  * area.  it's useful if some control registers are in such an area and write
  * combining or read caching is not desirable:
  */
-static inline void *ioremap_nocache(unsigned long offset, unsigned long size)
+static inline void __iomem *ioremap_nocache(unsigned long offset, unsigned long size)
 {
-	return (void *) (offset | 0x20000000);
+	return (void __iomem *) (offset | 0x20000000);
 }
 
 #define ioremap_wc ioremap_nocache
 
-static inline void iounmap(void *addr)
+static inline void iounmap(void __iomem *addr)
 {
 }
 
diff --git a/arch/mn10300/unit-asb2305/Makefile b/arch/mn10300/unit-asb2305/Makefile
index 0551022225b3..cbc5abaa939a 100644
--- a/arch/mn10300/unit-asb2305/Makefile
+++ b/arch/mn10300/unit-asb2305/Makefile
@@ -5,4 +5,4 @@
 ###############################################################################
 obj-y   := unit-init.o leds.o
 
-obj-$(CONFIG_PCI) += pci.o pci-asb2305.o pci-irq.o pci-iomap.o
+obj-$(CONFIG_PCI) += pci.o pci-asb2305.o pci-irq.o
diff --git a/arch/mn10300/unit-asb2305/pci-iomap.c b/arch/mn10300/unit-asb2305/pci-iomap.c
deleted file mode 100644
index c1a8d8f941fd..000000000000
--- a/arch/mn10300/unit-asb2305/pci-iomap.c
+++ /dev/null
@@ -1,31 +0,0 @@
-/* ASB2305 PCI I/O mapping handler
- *
- * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
- * Written by David Howells (dhowells@redhat.com)
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public Licence
- * as published by the Free Software Foundation; either version
- * 2 of the Licence, or (at your option) any later version.
- */
-#include <linux/pci.h>
-#include <linux/module.h>
-
-/*
- * Create a virtual mapping cookie for a PCI BAR (memory or IO)
- */
-void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
-{
-	resource_size_t start = pci_resource_start(dev, bar);
-	resource_size_t len = pci_resource_len(dev, bar);
-	unsigned long flags = pci_resource_flags(dev, bar);
-
-	if (!len || !start)
-		return NULL;
-
-	if ((flags & IORESOURCE_IO) || (flags & IORESOURCE_MEM))
-		return (void __iomem *) start;
-
-	return NULL;
-}
-EXPORT_SYMBOL(pci_iomap);
diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
index e518a5a4cf4c..081a54f1a93d 100644
--- a/arch/openrisc/Kconfig
+++ b/arch/openrisc/Kconfig
@@ -38,9 +38,6 @@ config RWSEM_XCHGADD_ALGORITHM
 config GENERIC_HWEIGHT
 	def_bool y
 
-config GENERIC_IOMAP
-	def_bool y
-
 config NO_IOPORT
 	def_bool y
 
diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index fdfd8be29e95..242a1b7ac759 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -14,6 +14,7 @@ config PARISC
 	select GENERIC_ATOMIC64 if !64BIT
 	select HAVE_GENERIC_HARDIRQS
 	select GENERIC_IRQ_PROBE
+	select GENERIC_PCI_IOMAP
 	select IRQ_PER_CPU
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
 
diff --git a/arch/parisc/lib/iomap.c b/arch/parisc/lib/iomap.c
index 8f470c93b16d..fb8e10a4fb39 100644
--- a/arch/parisc/lib/iomap.c
+++ b/arch/parisc/lib/iomap.c
@@ -436,28 +436,6 @@ void ioport_unmap(void __iomem *addr)
 	}
 }
 
-/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
-void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
-{
-	resource_size_t start = pci_resource_start(dev, bar);
-	resource_size_t len = pci_resource_len(dev, bar);
-	unsigned long flags = pci_resource_flags(dev, bar);
-
-	if (!len || !start)
-		return NULL;
-	if (maxlen && len > maxlen)
-		len = maxlen;
-	if (flags & IORESOURCE_IO)
-		return ioport_map(start, len);
-	if (flags & IORESOURCE_MEM) {
-		if (flags & IORESOURCE_CACHEABLE)
-			return ioremap(start, len);
-		return ioremap_nocache(start, len);
-	}
-	/* What? */
-	return NULL;
-}
-
 void pci_iounmap(struct pci_dev *dev, void __iomem * addr)
 {
 	if (!INDIRECT_ADDR(addr)) {
@@ -483,5 +461,4 @@ EXPORT_SYMBOL(iowrite16_rep);
 EXPORT_SYMBOL(iowrite32_rep);
 EXPORT_SYMBOL(ioport_map);
 EXPORT_SYMBOL(ioport_unmap);
-EXPORT_SYMBOL(pci_iomap);
 EXPORT_SYMBOL(pci_iounmap);
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index 692ac7588e20..1919634a9b32 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -718,6 +718,7 @@ config PCI
 	default PCI_PERMEDIA if !4xx && !CPM2 && !8xx
 	default PCI_QSPAN if !4xx && !CPM2 && 8xx
 	select ARCH_SUPPORTS_MSI
+	select GENERIC_PCI_IOMAP
 	help
 	  Find out whether your system includes a PCI bus. PCI is the name of
 	  a bus system, i.e. the way the CPU talks to the other stuff inside
diff --git a/arch/powerpc/include/asm/kvm.h b/arch/powerpc/include/asm/kvm.h
index 0ad432bc81d6..f7727d91ac6b 100644
--- a/arch/powerpc/include/asm/kvm.h
+++ b/arch/powerpc/include/asm/kvm.h
@@ -170,8 +170,8 @@ struct kvm_sregs {
 			} ppc64;
 			struct {
 				__u32 sr[16];
-				__u64 ibat[8]; 
-				__u64 dbat[8]; 
+				__u64 ibat[8];
+				__u64 dbat[8];
 			} ppc32;
 		} s;
 		struct {
diff --git a/arch/powerpc/kernel/iomap.c b/arch/powerpc/kernel/iomap.c
index 262791807397..97a3715ac8bd 100644
--- a/arch/powerpc/kernel/iomap.c
+++ b/arch/powerpc/kernel/iomap.c
@@ -119,24 +119,6 @@ EXPORT_SYMBOL(ioport_map);
 EXPORT_SYMBOL(ioport_unmap);
 
 #ifdef CONFIG_PCI
-void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
-{
-	resource_size_t start = pci_resource_start(dev, bar);
-	resource_size_t len = pci_resource_len(dev, bar);
-	unsigned long flags = pci_resource_flags(dev, bar);
-
-	if (!len)
-		return NULL;
-	if (max && len > max)
-		len = max;
-	if (flags & IORESOURCE_IO)
-		return ioport_map(start, len);
-	if (flags & IORESOURCE_MEM)
-		return ioremap(start, len);
-	/* What? */
-	return NULL;
-}
-
 void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
 {
 	if (isa_vaddr_is_ioport(addr))
@@ -146,6 +128,5 @@ void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
 	iounmap(addr);
 }
 
-EXPORT_SYMBOL(pci_iomap);
 EXPORT_SYMBOL(pci_iounmap);
 #endif /* CONFIG_PCI */
diff --git a/arch/powerpc/kernel/legacy_serial.c b/arch/powerpc/kernel/legacy_serial.c
index c7b5afeecaf2..3fea3689527e 100644
--- a/arch/powerpc/kernel/legacy_serial.c
+++ b/arch/powerpc/kernel/legacy_serial.c
@@ -441,6 +441,9 @@ static void __init fixup_port_irq(int index,
 		return;
 
 	port->irq = virq;
+
+	if (of_device_is_compatible(np, "fsl,ns16550"))
+		port->handle_irq = fsl8250_handle_irq;
 }
 
 static void __init fixup_port_pio(int index,
diff --git a/arch/powerpc/kvm/book3s.c b/arch/powerpc/kvm/book3s.c
index a459479995c6..e41ac6f7dcf1 100644
--- a/arch/powerpc/kvm/book3s.c
+++ b/arch/powerpc/kvm/book3s.c
@@ -498,7 +498,7 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
 
 	/* If nothing is dirty, don't bother messing with page tables. */
 	if (is_dirty) {
-		memslot = &kvm->memslots->memslots[log->slot];
+		memslot = id_to_memslot(kvm->memslots, log->slot);
 
 		ga = memslot->base_gfn << PAGE_SHIFT;
 		ga_end = ga + (memslot->npages << PAGE_SHIFT);
diff --git a/arch/powerpc/kvm/book3s_hv_builtin.c b/arch/powerpc/kvm/book3s_hv_builtin.c
index 286f13d601cf..a795a13f4a70 100644
--- a/arch/powerpc/kvm/book3s_hv_builtin.c
+++ b/arch/powerpc/kvm/book3s_hv_builtin.c
@@ -86,7 +86,7 @@ static inline int lpcr_rmls(unsigned long rma_size)
  * to allocate contiguous physical memory for the real memory
  * areas for guests.
  */
-void kvm_rma_init(void)
+void __init kvm_rma_init(void)
 {
 	unsigned long i;
 	unsigned long j, npages;
diff --git a/arch/powerpc/platforms/Kconfig b/arch/powerpc/platforms/Kconfig
index 31e1adeaa92a..0cfb46d54b8c 100644
--- a/arch/powerpc/platforms/Kconfig
+++ b/arch/powerpc/platforms/Kconfig
@@ -175,9 +175,6 @@ config PPC_INDIRECT_MMIO
 config PPC_IO_WORKAROUNDS
 	bool
 
-config GENERIC_IOMAP
-	bool
-
 source "drivers/cpufreq/Kconfig"
 
 menu "CPU Frequency drivers"
diff --git a/arch/s390/Kbuild b/arch/s390/Kbuild
index ae4b01060edd..9858476fa0fe 100644
--- a/arch/s390/Kbuild
+++ b/arch/s390/Kbuild
@@ -1,6 +1,7 @@
-obj-y += kernel/
-obj-y += mm/
-obj-y += crypto/
-obj-y += appldata/
-obj-y += hypfs/
-obj-y += kvm/
+obj-y				+= kernel/
+obj-y				+= mm/
+obj-$(CONFIG_KVM)		+= kvm/
+obj-$(CONFIG_CRYPTO_HW)		+= crypto/
+obj-$(CONFIG_S390_HYPFS_FS)	+= hypfs/
+obj-$(CONFIG_APPLDATA_BASE)	+= appldata/
+obj-$(CONFIG_MATHEMU)		+= math-emu/
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
index 28d183c42751..d1727584230a 100644
--- a/arch/s390/Kconfig
+++ b/arch/s390/Kconfig
@@ -193,18 +193,13 @@ config HOTPLUG_CPU
 	  Say N if you want to disable CPU hotplug.
 
 config SCHED_MC
-	def_bool y
-	prompt "Multi-core scheduler support"
-	depends on SMP
-	help
-	  Multi-core scheduler support improves the CPU scheduler's decision
-	  making when dealing with multi-core CPU chips at a cost of slightly
-	  increased overhead in some places.
+	def_bool n
 
 config SCHED_BOOK
 	def_bool y
 	prompt "Book scheduler support"
-	depends on SMP && SCHED_MC
+	depends on SMP
+	select SCHED_MC
 	help
 	  Book scheduler support improves the CPU scheduler's decision making
 	  when dealing with machines that have several books.
diff --git a/arch/s390/Makefile b/arch/s390/Makefile
index 27a0b5df5ead..e9f353341693 100644
--- a/arch/s390/Makefile
+++ b/arch/s390/Makefile
@@ -99,7 +99,6 @@ core-y		+= arch/s390/
 
 libs-y		+= arch/s390/lib/
 drivers-y	+= drivers/s390/
-drivers-$(CONFIG_MATHEMU) += arch/s390/math-emu/
 
 # must be linked after kernel
 drivers-$(CONFIG_OPROFILE)	+= arch/s390/oprofile/
diff --git a/arch/s390/boot/Makefile b/arch/s390/boot/Makefile
index 635d677d3281..f2737a005afc 100644
--- a/arch/s390/boot/Makefile
+++ b/arch/s390/boot/Makefile
@@ -23,4 +23,4 @@ $(obj)/compressed/vmlinux: FORCE
 
 install: $(CONFIGURE) $(obj)/image
 	sh -x  $(srctree)/$(obj)/install.sh $(KERNELRELEASE) $(obj)/image \
-	      System.map Kerntypes "$(INSTALL_PATH)"
+	      System.map "$(INSTALL_PATH)"
diff --git a/arch/s390/include/asm/kdebug.h b/arch/s390/include/asm/kdebug.h
index 40db27cd6e60..5c1abd47612a 100644
--- a/arch/s390/include/asm/kdebug.h
+++ b/arch/s390/include/asm/kdebug.h
@@ -22,6 +22,6 @@ enum die_val {
 	DIE_NMI_IPI,
 };
 
-extern void die(const char *, struct pt_regs *, long);
+extern void die(struct pt_regs *, const char *);
 
 #endif
diff --git a/arch/s390/include/asm/lowcore.h b/arch/s390/include/asm/lowcore.h
index 9e13c7d56cc1..707f2306725b 100644
--- a/arch/s390/include/asm/lowcore.h
+++ b/arch/s390/include/asm/lowcore.h
@@ -97,47 +97,52 @@ struct _lowcore {
 	__u32	gpregs_save_area[16];		/* 0x0180 */
 	__u32	cregs_save_area[16];		/* 0x01c0 */
 
+	/* Save areas. */
+	__u32	save_area_sync[8];		/* 0x0200 */
+	__u32	save_area_async[8];		/* 0x0220 */
+	__u32	save_area_restart[1];		/* 0x0240 */
+	__u8	pad_0x0244[0x0248-0x0244];	/* 0x0244 */
+
 	/* Return psws. */
-	__u32	save_area[16];			/* 0x0200 */
-	psw_t	return_psw;			/* 0x0240 */
-	psw_t	return_mcck_psw;		/* 0x0248 */
+	psw_t	return_psw;			/* 0x0248 */
+	psw_t	return_mcck_psw;		/* 0x0250 */
 
 	/* CPU time accounting values */
-	__u64	sync_enter_timer;		/* 0x0250 */
-	__u64	async_enter_timer;		/* 0x0258 */
-	__u64	mcck_enter_timer;		/* 0x0260 */
-	__u64	exit_timer;			/* 0x0268 */
-	__u64	user_timer;			/* 0x0270 */
-	__u64	system_timer;			/* 0x0278 */
-	__u64	steal_timer;			/* 0x0280 */
-	__u64	last_update_timer;		/* 0x0288 */
-	__u64	last_update_clock;		/* 0x0290 */
+	__u64	sync_enter_timer;		/* 0x0258 */
+	__u64	async_enter_timer;		/* 0x0260 */
+	__u64	mcck_enter_timer;		/* 0x0268 */
+	__u64	exit_timer;			/* 0x0270 */
+	__u64	user_timer;			/* 0x0278 */
+	__u64	system_timer;			/* 0x0280 */
+	__u64	steal_timer;			/* 0x0288 */
+	__u64	last_update_timer;		/* 0x0290 */
+	__u64	last_update_clock;		/* 0x0298 */
 
 	/* Current process. */
-	__u32	current_task;			/* 0x0298 */
-	__u32	thread_info;			/* 0x029c */
-	__u32	kernel_stack;			/* 0x02a0 */
+	__u32	current_task;			/* 0x02a0 */
+	__u32	thread_info;			/* 0x02a4 */
+	__u32	kernel_stack;			/* 0x02a8 */
 
 	/* Interrupt and panic stack. */
-	__u32	async_stack;			/* 0x02a4 */
-	__u32	panic_stack;			/* 0x02a8 */
+	__u32	async_stack;			/* 0x02ac */
+	__u32	panic_stack;			/* 0x02b0 */
 
 	/* Address space pointer. */
-	__u32	kernel_asce;			/* 0x02ac */
-	__u32	user_asce;			/* 0x02b0 */
-	__u32	current_pid;			/* 0x02b4 */
+	__u32	kernel_asce;			/* 0x02b4 */
+	__u32	user_asce;			/* 0x02b8 */
+	__u32	current_pid;			/* 0x02bc */
 
 	/* SMP info area */
-	__u32	cpu_nr;				/* 0x02b8 */
-	__u32	softirq_pending;		/* 0x02bc */
-	__u32	percpu_offset;			/* 0x02c0 */
-	__u32	ext_call_fast;			/* 0x02c4 */
-	__u64	int_clock;			/* 0x02c8 */
-	__u64	mcck_clock;			/* 0x02d0 */
-	__u64	clock_comparator;		/* 0x02d8 */
-	__u32	machine_flags;			/* 0x02e0 */
-	__u32	ftrace_func;			/* 0x02e4 */
-	__u8	pad_0x02e8[0x0300-0x02e8];	/* 0x02e8 */
+	__u32	cpu_nr;				/* 0x02c0 */
+	__u32	softirq_pending;		/* 0x02c4 */
+	__u32	percpu_offset;			/* 0x02c8 */
+	__u32	ext_call_fast;			/* 0x02cc */
+	__u64	int_clock;			/* 0x02d0 */
+	__u64	mcck_clock;			/* 0x02d8 */
+	__u64	clock_comparator;		/* 0x02e0 */
+	__u32	machine_flags;			/* 0x02e8 */
+	__u32	ftrace_func;			/* 0x02ec */
+	__u8	pad_0x02f8[0x0300-0x02f0];	/* 0x02f0 */
 
 	/* Interrupt response block */
 	__u8	irb[64];			/* 0x0300 */
@@ -229,57 +234,62 @@ struct _lowcore {
 	psw_t	mcck_new_psw;			/* 0x01e0 */
 	psw_t	io_new_psw;			/* 0x01f0 */
 
-	/* Entry/exit save area & return psws. */
-	__u64	save_area[16];			/* 0x0200 */
-	psw_t	return_psw;			/* 0x0280 */
-	psw_t	return_mcck_psw;		/* 0x0290 */
+	/* Save areas. */
+	__u64	save_area_sync[8];		/* 0x0200 */
+	__u64	save_area_async[8];		/* 0x0240 */
+	__u64	save_area_restart[1];		/* 0x0280 */
+	__u8	pad_0x0288[0x0290-0x0288];	/* 0x0288 */
+
+	/* Return psws. */
+	psw_t	return_psw;			/* 0x0290 */
+	psw_t	return_mcck_psw;		/* 0x02a0 */
 
 	/* CPU accounting and timing values. */
-	__u64	sync_enter_timer;		/* 0x02a0 */
-	__u64	async_enter_timer;		/* 0x02a8 */
-	__u64	mcck_enter_timer;		/* 0x02b0 */
-	__u64	exit_timer;			/* 0x02b8 */
-	__u64	user_timer;			/* 0x02c0 */
-	__u64	system_timer;			/* 0x02c8 */
-	__u64	steal_timer;			/* 0x02d0 */
-	__u64	last_update_timer;		/* 0x02d8 */
-	__u64	last_update_clock;		/* 0x02e0 */
+	__u64	sync_enter_timer;		/* 0x02b0 */
+	__u64	async_enter_timer;		/* 0x02b8 */
+	__u64	mcck_enter_timer;		/* 0x02c0 */
+	__u64	exit_timer;			/* 0x02c8 */
+	__u64	user_timer;			/* 0x02d0 */
+	__u64	system_timer;			/* 0x02d8 */
+	__u64	steal_timer;			/* 0x02e0 */
+	__u64	last_update_timer;		/* 0x02e8 */
+	__u64	last_update_clock;		/* 0x02f0 */
 
 	/* Current process. */
-	__u64	current_task;			/* 0x02e8 */
-	__u64	thread_info;			/* 0x02f0 */
-	__u64	kernel_stack;			/* 0x02f8 */
+	__u64	current_task;			/* 0x02f8 */
+	__u64	thread_info;			/* 0x0300 */
+	__u64	kernel_stack;			/* 0x0308 */
 
 	/* Interrupt and panic stack. */
-	__u64	async_stack;			/* 0x0300 */
-	__u64	panic_stack;			/* 0x0308 */
+	__u64	async_stack;			/* 0x0310 */
+	__u64	panic_stack;			/* 0x0318 */
 
 	/* Address space pointer. */
-	__u64	kernel_asce;			/* 0x0310 */
-	__u64	user_asce;			/* 0x0318 */
-	__u64	current_pid;			/* 0x0320 */
+	__u64	kernel_asce;			/* 0x0320 */
+	__u64	user_asce;			/* 0x0328 */
+	__u64	current_pid;			/* 0x0330 */
 
 	/* SMP info area */
-	__u32	cpu_nr;				/* 0x0328 */
-	__u32	softirq_pending;		/* 0x032c */
-	__u64	percpu_offset;			/* 0x0330 */
-	__u64	ext_call_fast;			/* 0x0338 */
-	__u64	int_clock;			/* 0x0340 */
-	__u64	mcck_clock;			/* 0x0348 */
-	__u64	clock_comparator;		/* 0x0350 */
-	__u64	vdso_per_cpu_data;		/* 0x0358 */
-	__u64	machine_flags;			/* 0x0360 */
-	__u64	ftrace_func;			/* 0x0368 */
-	__u64	gmap;				/* 0x0370 */
-	__u64	cmf_hpp;			/* 0x0378 */
+	__u32	cpu_nr;				/* 0x0338 */
+	__u32	softirq_pending;		/* 0x033c */
+	__u64	percpu_offset;			/* 0x0340 */
+	__u64	ext_call_fast;			/* 0x0348 */
+	__u64	int_clock;			/* 0x0350 */
+	__u64	mcck_clock;			/* 0x0358 */
+	__u64	clock_comparator;		/* 0x0360 */
+	__u64	vdso_per_cpu_data;		/* 0x0368 */
+	__u64	machine_flags;			/* 0x0370 */
+	__u64	ftrace_func;			/* 0x0378 */
+	__u64	gmap;				/* 0x0380 */
+	__u8	pad_0x0388[0x0400-0x0388];	/* 0x0388 */
 
 	/* Interrupt response block. */
-	__u8	irb[64];			/* 0x0380 */
+	__u8	irb[64];			/* 0x0400 */
 
 	/* Per cpu primary space access list */
-	__u32	paste[16];			/* 0x03c0 */
+	__u32	paste[16];			/* 0x0440 */
 
-	__u8	pad_0x0400[0x0e00-0x0400];	/* 0x0400 */
+	__u8	pad_0x0480[0x0e00-0x0480];	/* 0x0480 */
 
 	/*
 	 * 0xe00 contains the address of the IPL Parameter Information
diff --git a/arch/s390/include/asm/percpu.h b/arch/s390/include/asm/percpu.h
index 5325c89a5843..0fbd1899c7b0 100644
--- a/arch/s390/include/asm/percpu.h
+++ b/arch/s390/include/asm/percpu.h
@@ -19,7 +19,7 @@
 #define ARCH_NEEDS_WEAK_PER_CPU
 #endif
 
-#define arch_irqsafe_cpu_to_op(pcp, val, op)				\
+#define arch_this_cpu_to_op(pcp, val, op)				\
 do {									\
 	typedef typeof(pcp) pcp_op_T__;					\
 	pcp_op_T__ old__, new__, prev__;				\
@@ -41,27 +41,27 @@ do {									\
 	preempt_enable();						\
 } while (0)
 
-#define irqsafe_cpu_add_1(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, +)
-#define irqsafe_cpu_add_2(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, +)
-#define irqsafe_cpu_add_4(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, +)
-#define irqsafe_cpu_add_8(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, +)
+#define this_cpu_add_1(pcp, val) arch_this_cpu_to_op(pcp, val, +)
+#define this_cpu_add_2(pcp, val) arch_this_cpu_to_op(pcp, val, +)
+#define this_cpu_add_4(pcp, val) arch_this_cpu_to_op(pcp, val, +)
+#define this_cpu_add_8(pcp, val) arch_this_cpu_to_op(pcp, val, +)
 
-#define irqsafe_cpu_and_1(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, &)
-#define irqsafe_cpu_and_2(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, &)
-#define irqsafe_cpu_and_4(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, &)
-#define irqsafe_cpu_and_8(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, &)
+#define this_cpu_and_1(pcp, val) arch_this_cpu_to_op(pcp, val, &)
+#define this_cpu_and_2(pcp, val) arch_this_cpu_to_op(pcp, val, &)
+#define this_cpu_and_4(pcp, val) arch_this_cpu_to_op(pcp, val, &)
+#define this_cpu_and_8(pcp, val) arch_this_cpu_to_op(pcp, val, &)
 
-#define irqsafe_cpu_or_1(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, |)
-#define irqsafe_cpu_or_2(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, |)
-#define irqsafe_cpu_or_4(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, |)
-#define irqsafe_cpu_or_8(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, |)
+#define this_cpu_or_1(pcp, val) arch_this_cpu_to_op(pcp, val, |)
+#define this_cpu_or_2(pcp, val) arch_this_cpu_to_op(pcp, val, |)
+#define this_cpu_or_4(pcp, val) arch_this_cpu_to_op(pcp, val, |)
+#define this_cpu_or_8(pcp, val) arch_this_cpu_to_op(pcp, val, |)
 
-#define irqsafe_cpu_xor_1(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, ^)
-#define irqsafe_cpu_xor_2(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, ^)
-#define irqsafe_cpu_xor_4(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, ^)
-#define irqsafe_cpu_xor_8(pcp, val) arch_irqsafe_cpu_to_op(pcp, val, ^)
+#define this_cpu_xor_1(pcp, val) arch_this_cpu_to_op(pcp, val, ^)
+#define this_cpu_xor_2(pcp, val) arch_this_cpu_to_op(pcp, val, ^)
+#define this_cpu_xor_4(pcp, val) arch_this_cpu_to_op(pcp, val, ^)
+#define this_cpu_xor_8(pcp, val) arch_this_cpu_to_op(pcp, val, ^)
 
-#define arch_irqsafe_cpu_cmpxchg(pcp, oval, nval)			\
+#define arch_this_cpu_cmpxchg(pcp, oval, nval)			\
 ({									\
 	typedef typeof(pcp) pcp_op_T__;					\
 	pcp_op_T__ ret__;						\
@@ -79,10 +79,10 @@ do {									\
 	ret__;								\
 })
 
-#define irqsafe_cpu_cmpxchg_1(pcp, oval, nval) arch_irqsafe_cpu_cmpxchg(pcp, oval, nval)
-#define irqsafe_cpu_cmpxchg_2(pcp, oval, nval) arch_irqsafe_cpu_cmpxchg(pcp, oval, nval)
-#define irqsafe_cpu_cmpxchg_4(pcp, oval, nval) arch_irqsafe_cpu_cmpxchg(pcp, oval, nval)
-#define irqsafe_cpu_cmpxchg_8(pcp, oval, nval) arch_irqsafe_cpu_cmpxchg(pcp, oval, nval)
+#define this_cpu_cmpxchg_1(pcp, oval, nval) arch_this_cpu_cmpxchg(pcp, oval, nval)
+#define this_cpu_cmpxchg_2(pcp, oval, nval) arch_this_cpu_cmpxchg(pcp, oval, nval)
+#define this_cpu_cmpxchg_4(pcp, oval, nval) arch_this_cpu_cmpxchg(pcp, oval, nval)
+#define this_cpu_cmpxchg_8(pcp, oval, nval) arch_this_cpu_cmpxchg(pcp, oval, nval)
 
 #include <asm-generic/percpu.h>
 
diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h
index 4f289ff0b7fe..011358c1b18e 100644
--- a/arch/s390/include/asm/pgtable.h
+++ b/arch/s390/include/asm/pgtable.h
@@ -128,28 +128,11 @@ static inline int is_zero_pfn(unsigned long pfn)
  * effect, this also makes sure that 64 bit module code cannot be used
  * as system call address.
  */
-
 extern unsigned long VMALLOC_START;
+extern unsigned long VMALLOC_END;
+extern struct page *vmemmap;
 
-#ifndef __s390x__
-#define VMALLOC_SIZE	(96UL << 20)
-#define VMALLOC_END	0x7e000000UL
-#define VMEM_MAP_END	0x80000000UL
-#else /* __s390x__ */
-#define VMALLOC_SIZE	(128UL << 30)
-#define VMALLOC_END	0x3e000000000UL
-#define VMEM_MAP_END	0x40000000000UL
-#endif /* __s390x__ */
-
-/*
- * VMEM_MAX_PHYS is the highest physical address that can be added to the 1:1
- * mapping. This needs to be calculated at compile time since the size of the
- * VMEM_MAP is static but the size of struct page can change.
- */
-#define VMEM_MAX_PAGES	((VMEM_MAP_END - VMALLOC_END) / sizeof(struct page))
-#define VMEM_MAX_PFN	min(VMALLOC_START >> PAGE_SHIFT, VMEM_MAX_PAGES)
-#define VMEM_MAX_PHYS	((VMEM_MAX_PFN << PAGE_SHIFT) & ~((16 << 20) - 1))
-#define vmemmap		((struct page *) VMALLOC_END)
+#define VMEM_MAX_PHYS ((unsigned long) vmemmap)
 
 /*
  * A 31 bit pagetable entry of S390 has following format:
diff --git a/arch/s390/include/asm/processor.h b/arch/s390/include/asm/processor.h
index 5f33d37d032c..27272f6a14c2 100644
--- a/arch/s390/include/asm/processor.h
+++ b/arch/s390/include/asm/processor.h
@@ -80,8 +80,6 @@ struct thread_struct {
 	unsigned int  acrs[NUM_ACRS];
         unsigned long ksp;              /* kernel stack pointer             */
 	mm_segment_t mm_segment;
-        unsigned long prot_addr;        /* address of protection-excep.     */
-        unsigned int trap_no;
 	unsigned long gmap_addr;	/* address of last gmap fault. */
 	struct per_regs per_user;	/* User specified PER registers */
 	struct per_event per_event;	/* Cause of the last PER trap */
diff --git a/arch/s390/include/asm/ptrace.h b/arch/s390/include/asm/ptrace.h
index a65846340d51..56da355678f4 100644
--- a/arch/s390/include/asm/ptrace.h
+++ b/arch/s390/include/asm/ptrace.h
@@ -324,7 +324,8 @@ struct pt_regs
 	psw_t psw;
 	unsigned long gprs[NUM_GPRS];
 	unsigned long orig_gpr2;
-	unsigned int svc_code;
+	unsigned int int_code;
+	unsigned long int_parm_long;
 };
 
 /*
diff --git a/arch/s390/include/asm/qdio.h b/arch/s390/include/asm/qdio.h
index e63d13dd3bf5..d75c8e78f7e3 100644
--- a/arch/s390/include/asm/qdio.h
+++ b/arch/s390/include/asm/qdio.h
@@ -352,7 +352,7 @@ typedef void qdio_handler_t(struct ccw_device *, unsigned int, int,
  * @no_output_qs: number of output queues
  * @input_handler: handler to be called for input queues
  * @output_handler: handler to be called for output queues
- * @queue_start_poll: polling handlers (one per input queue or NULL)
+ * @queue_start_poll_array: polling handlers (one per input queue or NULL)
  * @int_parm: interruption parameter
  * @input_sbal_addr_array:  address of no_input_qs * 128 pointers
  * @output_sbal_addr_array: address of no_output_qs * 128 pointers
@@ -372,7 +372,8 @@ struct qdio_initialize {
 	unsigned int no_output_qs;
 	qdio_handler_t *input_handler;
 	qdio_handler_t *output_handler;
-	void (**queue_start_poll) (struct ccw_device *, int, unsigned long);
+	void (**queue_start_poll_array) (struct ccw_device *, int,
+					  unsigned long);
 	int scan_threshold;
 	unsigned long int_parm;
 	void **input_sbal_addr_array;
diff --git a/arch/s390/include/asm/sigp.h b/arch/s390/include/asm/sigp.h
index e3bffd4e2d66..7040b8567cd0 100644
--- a/arch/s390/include/asm/sigp.h
+++ b/arch/s390/include/asm/sigp.h
@@ -56,6 +56,7 @@ enum {
 	ec_schedule = 0,
 	ec_call_function,
 	ec_call_function_single,
+	ec_stop_cpu,
 };
 
 /*
diff --git a/arch/s390/include/asm/smp.h b/arch/s390/include/asm/smp.h
index ab47a69fdf07..c32e9123b40c 100644
--- a/arch/s390/include/asm/smp.h
+++ b/arch/s390/include/asm/smp.h
@@ -23,7 +23,6 @@ extern void __cpu_die (unsigned int cpu);
 extern int __cpu_up (unsigned int cpu);
 
 extern struct mutex smp_cpu_state_mutex;
-extern int smp_cpu_polarization[];
 
 extern void arch_send_call_function_single_ipi(int cpu);
 extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
diff --git a/arch/s390/include/asm/sparsemem.h b/arch/s390/include/asm/sparsemem.h
index 545d219e6a2d..0fb34027d3f6 100644
--- a/arch/s390/include/asm/sparsemem.h
+++ b/arch/s390/include/asm/sparsemem.h
@@ -4,8 +4,8 @@
 #ifdef CONFIG_64BIT
 
 #define SECTION_SIZE_BITS	28
-#define MAX_PHYSADDR_BITS	42
-#define MAX_PHYSMEM_BITS	42
+#define MAX_PHYSADDR_BITS	46
+#define MAX_PHYSMEM_BITS	46
 
 #else
 
diff --git a/arch/s390/include/asm/syscall.h b/arch/s390/include/asm/syscall.h
index b239ff53b189..fb214dd9b7e0 100644
--- a/arch/s390/include/asm/syscall.h
+++ b/arch/s390/include/asm/syscall.h
@@ -27,7 +27,7 @@ static inline long syscall_get_nr(struct task_struct *task,
 				  struct pt_regs *regs)
 {
 	return test_tsk_thread_flag(task, TIF_SYSCALL) ?
-		(regs->svc_code & 0xffff) : -1;
+		(regs->int_code & 0xffff) : -1;
 }
 
 static inline void syscall_rollback(struct task_struct *task,
diff --git a/arch/s390/include/asm/system.h b/arch/s390/include/asm/system.h
index ef573c1d71a7..d73cc6b60000 100644
--- a/arch/s390/include/asm/system.h
+++ b/arch/s390/include/asm/system.h
@@ -20,8 +20,6 @@
 
 struct task_struct;
 
-extern int sysctl_userprocess_debug;
-
 extern struct task_struct *__switch_to(void *, void *);
 extern void update_per_regs(struct task_struct *task);
 
diff --git a/arch/s390/include/asm/topology.h b/arch/s390/include/asm/topology.h
index 005d77d8ae2a..0837de80c351 100644
--- a/arch/s390/include/asm/topology.h
+++ b/arch/s390/include/asm/topology.h
@@ -4,6 +4,10 @@
 #include <linux/cpumask.h>
 #include <asm/sysinfo.h>
 
+struct cpu;
+
+#ifdef CONFIG_SCHED_BOOK
+
 extern unsigned char cpu_core_id[NR_CPUS];
 extern cpumask_t cpu_core_map[NR_CPUS];
 
@@ -16,8 +20,6 @@ static inline const struct cpumask *cpu_coregroup_mask(int cpu)
 #define topology_core_cpumask(cpu)	(&cpu_core_map[cpu])
 #define mc_capable()			(1)
 
-#ifdef CONFIG_SCHED_BOOK
-
 extern unsigned char cpu_book_id[NR_CPUS];
 extern cpumask_t cpu_book_map[NR_CPUS];
 
@@ -29,19 +31,45 @@ static inline const struct cpumask *cpu_book_mask(int cpu)
 #define topology_book_id(cpu)		(cpu_book_id[cpu])
 #define topology_book_cpumask(cpu)	(&cpu_book_map[cpu])
 
-#endif /* CONFIG_SCHED_BOOK */
-
+int topology_cpu_init(struct cpu *);
 int topology_set_cpu_management(int fc);
 void topology_schedule_update(void);
 void store_topology(struct sysinfo_15_1_x *info);
+void topology_expect_change(void);
+
+#else /* CONFIG_SCHED_BOOK */
+
+static inline void topology_schedule_update(void) { }
+static inline int topology_cpu_init(struct cpu *cpu) { return 0; }
+static inline void topology_expect_change(void) { }
 
-#define POLARIZATION_UNKNWN	(-1)
+#endif /* CONFIG_SCHED_BOOK */
+
+#define POLARIZATION_UNKNOWN	(-1)
 #define POLARIZATION_HRZ	(0)
 #define POLARIZATION_VL		(1)
 #define POLARIZATION_VM		(2)
 #define POLARIZATION_VH		(3)
 
-#ifdef CONFIG_SMP
+extern int cpu_polarization[];
+
+static inline void cpu_set_polarization(int cpu, int val)
+{
+#ifdef CONFIG_SCHED_BOOK
+	cpu_polarization[cpu] = val;
+#endif
+}
+
+static inline int cpu_read_polarization(int cpu)
+{
+#ifdef CONFIG_SCHED_BOOK
+	return cpu_polarization[cpu];
+#else
+	return POLARIZATION_HRZ;
+#endif
+}
+
+#ifdef CONFIG_SCHED_BOOK
 void s390_init_cpu_topology(void);
 #else
 static inline void s390_init_cpu_topology(void)
diff --git a/arch/s390/include/asm/unistd.h b/arch/s390/include/asm/unistd.h
index 58de4c91c333..8a8008fe7b8f 100644
--- a/arch/s390/include/asm/unistd.h
+++ b/arch/s390/include/asm/unistd.h
@@ -398,6 +398,7 @@
 #define __ARCH_WANT_SYS_SIGNAL
 #define __ARCH_WANT_SYS_UTIME
 #define __ARCH_WANT_SYS_SOCKETCALL
+#define __ARCH_WANT_SYS_IPC
 #define __ARCH_WANT_SYS_FADVISE64
 #define __ARCH_WANT_SYS_GETPGRP
 #define __ARCH_WANT_SYS_LLSEEK
diff --git a/arch/s390/kernel/Makefile b/arch/s390/kernel/Makefile
index dd4f07640919..7d9ec924e7e7 100644
--- a/arch/s390/kernel/Makefile
+++ b/arch/s390/kernel/Makefile
@@ -32,7 +32,8 @@ extra-y				+= head.o init_task.o vmlinux.lds
 extra-y				+= $(if $(CONFIG_64BIT),head64.o,head31.o)
 
 obj-$(CONFIG_MODULES)		+= s390_ksyms.o module.o
-obj-$(CONFIG_SMP)		+= smp.o topology.o
+obj-$(CONFIG_SMP)		+= smp.o
+obj-$(CONFIG_SCHED_BOOK)	+= topology.o
 obj-$(CONFIG_SMP)		+= $(if $(CONFIG_64BIT),switch_cpu64.o, \
 							switch_cpu.o)
 obj-$(CONFIG_HIBERNATION)	+= suspend.o swsusp_asm64.o
diff --git a/arch/s390/kernel/asm-offsets.c b/arch/s390/kernel/asm-offsets.c
index 751318765e2e..6e6a72e66d60 100644
--- a/arch/s390/kernel/asm-offsets.c
+++ b/arch/s390/kernel/asm-offsets.c
@@ -45,7 +45,8 @@ int main(void)
 	DEFINE(__PT_PSW, offsetof(struct pt_regs, psw));
 	DEFINE(__PT_GPRS, offsetof(struct pt_regs, gprs));
 	DEFINE(__PT_ORIG_GPR2, offsetof(struct pt_regs, orig_gpr2));
-	DEFINE(__PT_SVC_CODE, offsetof(struct pt_regs, svc_code));
+	DEFINE(__PT_INT_CODE, offsetof(struct pt_regs, int_code));
+	DEFINE(__PT_INT_PARM_LONG, offsetof(struct pt_regs, int_parm_long));
 	DEFINE(__PT_SIZE, sizeof(struct pt_regs));
 	BLANK();
 	DEFINE(__SF_BACKCHAIN, offsetof(struct stack_frame, back_chain));
@@ -108,7 +109,9 @@ int main(void)
 	DEFINE(__LC_PGM_NEW_PSW, offsetof(struct _lowcore, program_new_psw));
 	DEFINE(__LC_MCK_NEW_PSW, offsetof(struct _lowcore, mcck_new_psw));
 	DEFINE(__LC_IO_NEW_PSW, offsetof(struct _lowcore, io_new_psw));
-	DEFINE(__LC_SAVE_AREA, offsetof(struct _lowcore, save_area));
+	DEFINE(__LC_SAVE_AREA_SYNC, offsetof(struct _lowcore, save_area_sync));
+	DEFINE(__LC_SAVE_AREA_ASYNC, offsetof(struct _lowcore, save_area_async));
+	DEFINE(__LC_SAVE_AREA_RESTART, offsetof(struct _lowcore, save_area_restart));
 	DEFINE(__LC_RETURN_PSW, offsetof(struct _lowcore, return_psw));
 	DEFINE(__LC_RETURN_MCCK_PSW, offsetof(struct _lowcore, return_mcck_psw));
 	DEFINE(__LC_SYNC_ENTER_TIMER, offsetof(struct _lowcore, sync_enter_timer));
@@ -150,7 +153,6 @@ int main(void)
 	DEFINE(__LC_LAST_BREAK, offsetof(struct _lowcore, breaking_event_addr));
 	DEFINE(__LC_VDSO_PER_CPU, offsetof(struct _lowcore, vdso_per_cpu_data));
 	DEFINE(__LC_GMAP, offsetof(struct _lowcore, gmap));
-	DEFINE(__LC_CMF_HPP, offsetof(struct _lowcore, cmf_hpp));
 	DEFINE(__GMAP_ASCE, offsetof(struct gmap, asce));
 #endif /* CONFIG_32BIT */
 	return 0;
diff --git a/arch/s390/kernel/base.S b/arch/s390/kernel/base.S
index f8828d38fa6e..3aa4d00aaf50 100644
--- a/arch/s390/kernel/base.S
+++ b/arch/s390/kernel/base.S
@@ -33,7 +33,7 @@ s390_base_mcck_handler_fn:
 	.previous
 
 ENTRY(s390_base_ext_handler)
-	stmg	%r0,%r15,__LC_SAVE_AREA
+	stmg	%r0,%r15,__LC_SAVE_AREA_ASYNC
 	basr	%r13,0
 0:	aghi	%r15,-STACK_FRAME_OVERHEAD
 	larl	%r1,s390_base_ext_handler_fn
@@ -41,7 +41,7 @@ ENTRY(s390_base_ext_handler)
 	ltgr	%r1,%r1
 	jz	1f
 	basr	%r14,%r1
-1:	lmg	%r0,%r15,__LC_SAVE_AREA
+1:	lmg	%r0,%r15,__LC_SAVE_AREA_ASYNC
 	ni	__LC_EXT_OLD_PSW+1,0xfd	# clear wait state bit
 	lpswe	__LC_EXT_OLD_PSW
 
@@ -53,7 +53,7 @@ s390_base_ext_handler_fn:
 	.previous
 
 ENTRY(s390_base_pgm_handler)
-	stmg	%r0,%r15,__LC_SAVE_AREA
+	stmg	%r0,%r15,__LC_SAVE_AREA_SYNC
 	basr	%r13,0
 0:	aghi	%r15,-STACK_FRAME_OVERHEAD
 	larl	%r1,s390_base_pgm_handler_fn
@@ -61,7 +61,7 @@ ENTRY(s390_base_pgm_handler)
 	ltgr	%r1,%r1
 	jz	1f
 	basr	%r14,%r1
-	lmg	%r0,%r15,__LC_SAVE_AREA
+	lmg	%r0,%r15,__LC_SAVE_AREA_SYNC
 	lpswe	__LC_PGM_OLD_PSW
 1:	lpswe	disabled_wait_psw-0b(%r13)
 
@@ -142,7 +142,7 @@ s390_base_mcck_handler_fn:
 	.previous
 
 ENTRY(s390_base_ext_handler)
-	stm	%r0,%r15,__LC_SAVE_AREA
+	stm	%r0,%r15,__LC_SAVE_AREA_ASYNC
 	basr	%r13,0
 0:	ahi	%r15,-STACK_FRAME_OVERHEAD
 	l	%r1,2f-0b(%r13)
@@ -150,7 +150,7 @@ ENTRY(s390_base_ext_handler)
 	ltr	%r1,%r1
 	jz	1f
 	basr	%r14,%r1
-1:	lm	%r0,%r15,__LC_SAVE_AREA
+1:	lm	%r0,%r15,__LC_SAVE_AREA_ASYNC
 	ni	__LC_EXT_OLD_PSW+1,0xfd	# clear wait state bit
 	lpsw	__LC_EXT_OLD_PSW
 
@@ -164,7 +164,7 @@ s390_base_ext_handler_fn:
 	.previous
 
 ENTRY(s390_base_pgm_handler)
-	stm	%r0,%r15,__LC_SAVE_AREA
+	stm	%r0,%r15,__LC_SAVE_AREA_SYNC
 	basr	%r13,0
 0:	ahi	%r15,-STACK_FRAME_OVERHEAD
 	l	%r1,2f-0b(%r13)
@@ -172,7 +172,7 @@ ENTRY(s390_base_pgm_handler)
 	ltr	%r1,%r1
 	jz	1f
 	basr	%r14,%r1
-	lm	%r0,%r15,__LC_SAVE_AREA
+	lm	%r0,%r15,__LC_SAVE_AREA_SYNC
 	lpsw	__LC_PGM_OLD_PSW
 
 1:	lpsw	disabled_wait_psw-0b(%r13)
diff --git a/arch/s390/kernel/compat_linux.c b/arch/s390/kernel/compat_linux.c
index 84a982898448..ab64bdbab2ae 100644
--- a/arch/s390/kernel/compat_linux.c
+++ b/arch/s390/kernel/compat_linux.c
@@ -278,9 +278,6 @@ asmlinkage long sys32_ipc(u32 call, int first, int second, int third, u32 ptr)
 {
 	if (call >> 16)		/* hack for backward compatibility */
 		return -EINVAL;
-
-	call &= 0xffff;
-
 	switch (call) {
 	case SEMTIMEDOP:
 		return compat_sys_semtimedop(first, compat_ptr(ptr),
diff --git a/arch/s390/kernel/compat_signal.c b/arch/s390/kernel/compat_signal.c
index 4f68c81d3ffa..6fe78c2f95d9 100644
--- a/arch/s390/kernel/compat_signal.c
+++ b/arch/s390/kernel/compat_signal.c
@@ -501,8 +501,12 @@ static int setup_frame32(int sig, struct k_sigaction *ka,
 
 	/* We forgot to include these in the sigcontext.
 	   To avoid breaking binary compatibility, they are passed as args. */
-	regs->gprs[4] = current->thread.trap_no;
-	regs->gprs[5] = current->thread.prot_addr;
+	if (sig == SIGSEGV || sig == SIGBUS || sig == SIGILL ||
+	    sig == SIGTRAP || sig == SIGFPE) {
+		/* set extra registers only for synchronous signals */
+		regs->gprs[4] = regs->int_code & 127;
+		regs->gprs[5] = regs->int_parm_long;
+	}
 
 	/* Place signal number on stack to allow backtrace from handler.  */
 	if (__put_user(regs->gprs[2], (int __force __user *) &frame->signo))
@@ -544,9 +548,9 @@ static int setup_rt_frame32(int sig, struct k_sigaction *ka, siginfo_t *info,
 	/* Set up to return from userspace.  If provided, use a stub
 	   already in userspace.  */
 	if (ka->sa.sa_flags & SA_RESTORER) {
-		regs->gprs[14] = (__u64) ka->sa.sa_restorer;
+		regs->gprs[14] = (__u64) ka->sa.sa_restorer | PSW32_ADDR_AMODE;
 	} else {
-		regs->gprs[14] = (__u64) frame->retcode;
+		regs->gprs[14] = (__u64) frame->retcode | PSW32_ADDR_AMODE;
 		err |= __put_user(S390_SYSCALL_OPCODE | __NR_rt_sigreturn,
 				  (u16 __force __user *)(frame->retcode));
 	}
diff --git a/arch/s390/kernel/dis.c b/arch/s390/kernel/dis.c
index 45df6d456aa1..e2f847599c8e 100644
--- a/arch/s390/kernel/dis.c
+++ b/arch/s390/kernel/dis.c
@@ -1578,10 +1578,15 @@ void show_code(struct pt_regs *regs)
 	ptr += sprintf(ptr, "%s Code:", mode);
 	hops = 0;
 	while (start < end && hops < 8) {
-		*ptr++ = (start == 32) ? '>' : ' ';
+		opsize = insn_length(code[start]);
+		if  (start + opsize == 32)
+			*ptr++ = '#';
+		else if (start == 32)
+			*ptr++ = '>';
+		else
+			*ptr++ = ' ';
 		addr = regs->psw.addr + start - 32;
 		ptr += sprintf(ptr, ONELONG, addr);
-		opsize = insn_length(code[start]);
 		if (start + opsize >= end)
 			break;
 		for (i = 0; i < opsize; i++)
diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c
index c9ffe0025197..52098d6dfaa7 100644
--- a/arch/s390/kernel/early.c
+++ b/arch/s390/kernel/early.c
@@ -434,18 +434,22 @@ static void __init append_to_cmdline(size_t (*ipl_data)(char *, size_t))
 	}
 }
 
-static void __init setup_boot_command_line(void)
+static inline int has_ebcdic_char(const char *str)
 {
 	int i;
 
-	/* convert arch command line to ascii */
-	for (i = 0; i < ARCH_COMMAND_LINE_SIZE; i++)
-		if (COMMAND_LINE[i] & 0x80)
-			break;
-	if (i < ARCH_COMMAND_LINE_SIZE)
-		EBCASC(COMMAND_LINE, ARCH_COMMAND_LINE_SIZE);
-	COMMAND_LINE[ARCH_COMMAND_LINE_SIZE-1] = 0;
+	for (i = 0; str[i]; i++)
+		if (str[i] & 0x80)
+			return 1;
+	return 0;
+}
 
+static void __init setup_boot_command_line(void)
+{
+	COMMAND_LINE[ARCH_COMMAND_LINE_SIZE - 1] = 0;
+	/* convert arch command line to ascii if necessary */
+	if (has_ebcdic_char(COMMAND_LINE))
+		EBCASC(COMMAND_LINE, ARCH_COMMAND_LINE_SIZE);
 	/* copy arch command line */
 	strlcpy(boot_command_line, strstrip(COMMAND_LINE),
 		ARCH_COMMAND_LINE_SIZE);
diff --git a/arch/s390/kernel/entry.S b/arch/s390/kernel/entry.S
index b13157057e02..3705700ed374 100644
--- a/arch/s390/kernel/entry.S
+++ b/arch/s390/kernel/entry.S
@@ -19,32 +19,22 @@
 #include <asm/unistd.h>
 #include <asm/page.h>
 
-/*
- * Stack layout for the system_call stack entry.
- * The first few entries are identical to the user_regs_struct.
- */
-SP_PTREGS    =	STACK_FRAME_OVERHEAD
-SP_ARGS      =	STACK_FRAME_OVERHEAD + __PT_ARGS
-SP_PSW	     =	STACK_FRAME_OVERHEAD + __PT_PSW
-SP_R0	     =	STACK_FRAME_OVERHEAD + __PT_GPRS
-SP_R1	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 4
-SP_R2	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 8
-SP_R3	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 12
-SP_R4	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 16
-SP_R5	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 20
-SP_R6	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 24
-SP_R7	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 28
-SP_R8	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 32
-SP_R9	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 36
-SP_R10	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 40
-SP_R11	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 44
-SP_R12	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 48
-SP_R13	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 52
-SP_R14	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 56
-SP_R15	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 60
-SP_ORIG_R2   =	STACK_FRAME_OVERHEAD + __PT_ORIG_GPR2
-SP_SVC_CODE  =	STACK_FRAME_OVERHEAD + __PT_SVC_CODE
-SP_SIZE      =	STACK_FRAME_OVERHEAD + __PT_SIZE
+__PT_R0      =	__PT_GPRS
+__PT_R1      =	__PT_GPRS + 4
+__PT_R2      =	__PT_GPRS + 8
+__PT_R3      =	__PT_GPRS + 12
+__PT_R4      =	__PT_GPRS + 16
+__PT_R5      =	__PT_GPRS + 20
+__PT_R6      =	__PT_GPRS + 24
+__PT_R7      =	__PT_GPRS + 28
+__PT_R8      =	__PT_GPRS + 32
+__PT_R9      =	__PT_GPRS + 36
+__PT_R10     =	__PT_GPRS + 40
+__PT_R11     =	__PT_GPRS + 44
+__PT_R12     =	__PT_GPRS + 48
+__PT_R13     =	__PT_GPRS + 524
+__PT_R14     =	__PT_GPRS + 56
+__PT_R15     =	__PT_GPRS + 60
 
 _TIF_WORK_SVC = (_TIF_SIGPENDING | _TIF_NOTIFY_RESUME | _TIF_NEED_RESCHED | \
 		 _TIF_MCCK_PENDING | _TIF_PER_TRAP )
@@ -58,133 +48,91 @@ STACK_SIZE  = 1 << STACK_SHIFT
 
 #define BASED(name) name-system_call(%r13)
 
-#ifdef CONFIG_TRACE_IRQFLAGS
 	.macro	TRACE_IRQS_ON
+#ifdef CONFIG_TRACE_IRQFLAGS
 	basr	%r2,%r0
-	l	%r1,BASED(.Ltrace_irq_on_caller)
-	basr	%r14,%r1
+	l	%r1,BASED(.Lhardirqs_on)
+	basr	%r14,%r1		# call trace_hardirqs_on_caller
+#endif
 	.endm
 
 	.macro	TRACE_IRQS_OFF
+#ifdef CONFIG_TRACE_IRQFLAGS
 	basr	%r2,%r0
-	l	%r1,BASED(.Ltrace_irq_off_caller)
-	basr	%r14,%r1
-	.endm
-#else
-#define TRACE_IRQS_ON
-#define TRACE_IRQS_OFF
+	l	%r1,BASED(.Lhardirqs_off)
+	basr	%r14,%r1		# call trace_hardirqs_off_caller
 #endif
+	.endm
 
-#ifdef CONFIG_LOCKDEP
 	.macro	LOCKDEP_SYS_EXIT
-	tm	SP_PSW+1(%r15),0x01	# returning to user ?
-	jz	0f
+#ifdef CONFIG_LOCKDEP
+	tm	__PT_PSW+1(%r11),0x01	# returning to user ?
+	jz	.+10
 	l	%r1,BASED(.Llockdep_sys_exit)
-	basr	%r14,%r1
-0:
-	.endm
-#else
-#define LOCKDEP_SYS_EXIT
+	basr	%r14,%r1		# call lockdep_sys_exit
 #endif
-
-/*
- * Register usage in interrupt handlers:
- *    R9  - pointer to current task structure
- *    R13 - pointer to literal pool
- *    R14 - return register for function calls
- *    R15 - kernel stack pointer
- */
-
-	.macro	UPDATE_VTIME lc_from,lc_to,lc_sum
-	lm	%r10,%r11,\lc_from
-	sl	%r10,\lc_to
-	sl	%r11,\lc_to+4
-	bc	3,BASED(0f)
-	sl	%r10,BASED(.Lc_1)
-0:	al	%r10,\lc_sum
-	al	%r11,\lc_sum+4
-	bc	12,BASED(1f)
-	al	%r10,BASED(.Lc_1)
-1:	stm	%r10,%r11,\lc_sum
-	.endm
-
-	.macro	SAVE_ALL_SVC psworg,savearea
-	stm	%r12,%r15,\savearea
-	l	%r13,__LC_SVC_NEW_PSW+4	# load &system_call to %r13
-	l	%r15,__LC_KERNEL_STACK	# problem state -> load ksp
-	s	%r15,BASED(.Lc_spsize)	# make room for registers & psw
-	.endm
-
-	.macro	SAVE_ALL_BASE savearea
-	stm	%r12,%r15,\savearea
-	l	%r13,__LC_SVC_NEW_PSW+4	# load &system_call to %r13
 	.endm
 
-	.macro	SAVE_ALL_PGM psworg,savearea
-	tm	\psworg+1,0x01		# test problem state bit
+	.macro	CHECK_STACK stacksize,savearea
 #ifdef CONFIG_CHECK_STACK
-	bnz	BASED(1f)
-	tml	%r15,STACK_SIZE - CONFIG_STACK_GUARD
-	bnz	BASED(2f)
-	la	%r12,\psworg
-	b	BASED(stack_overflow)
-#else
-	bz	BASED(2f)
+	tml	%r15,\stacksize - CONFIG_STACK_GUARD
+	la	%r14,\savearea
+	jz	stack_overflow
 #endif
-1:	l	%r15,__LC_KERNEL_STACK	# problem state -> load ksp
-2:	s	%r15,BASED(.Lc_spsize)	# make room for registers & psw
 	.endm
 
-	.macro	SAVE_ALL_ASYNC psworg,savearea
-	stm	%r12,%r15,\savearea
-	l	%r13,__LC_SVC_NEW_PSW+4	# load &system_call to %r13
-	la	%r12,\psworg
-	tm	\psworg+1,0x01		# test problem state bit
-	bnz	BASED(1f)		# from user -> load async stack
-	clc	\psworg+4(4),BASED(.Lcritical_end)
-	bhe	BASED(0f)
-	clc	\psworg+4(4),BASED(.Lcritical_start)
-	bl	BASED(0f)
-	l	%r14,BASED(.Lcleanup_critical)
-	basr	%r14,%r14
-	tm	1(%r12),0x01		# retest problem state after cleanup
-	bnz	BASED(1f)
-0:	l	%r14,__LC_ASYNC_STACK	# are we already on the async stack ?
+	.macro	SWITCH_ASYNC savearea,stack,shift
+	tmh	%r8,0x0001		# interrupting from user ?
+	jnz	1f
+	lr	%r14,%r9
+	sl	%r14,BASED(.Lcritical_start)
+	cl	%r14,BASED(.Lcritical_length)
+	jhe	0f
+	la	%r11,\savearea		# inside critical section, do cleanup
+	bras	%r14,cleanup_critical
+	tmh	%r8,0x0001		# retest problem state after cleanup
+	jnz	1f
+0:	l	%r14,\stack		# are we already on the target stack?
 	slr	%r14,%r15
-	sra	%r14,STACK_SHIFT
-#ifdef CONFIG_CHECK_STACK
-	bnz	BASED(1f)
-	tml	%r15,STACK_SIZE - CONFIG_STACK_GUARD
-	bnz	BASED(2f)
-	b	BASED(stack_overflow)
-#else
-	bz	BASED(2f)
-#endif
-1:	l	%r15,__LC_ASYNC_STACK
-2:	s	%r15,BASED(.Lc_spsize)	# make room for registers & psw
+	sra	%r14,\shift
+	jnz	1f
+	CHECK_STACK 1<<\shift,\savearea
+	j	2f
+1:	l	%r15,\stack		# load target stack
+2:	ahi	%r15,-(STACK_FRAME_OVERHEAD + __PT_SIZE)
+	la	%r11,STACK_FRAME_OVERHEAD(%r15)
 	.endm
 
-	.macro	CREATE_STACK_FRAME savearea
-	xc	__SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15)
-	st	%r2,SP_ORIG_R2(%r15)	# store original content of gpr 2
-	mvc	SP_R12(16,%r15),\savearea # move %r12-%r15 to stack
-	stm	%r0,%r11,SP_R0(%r15)	# store gprs %r0-%r11 to kernel stack
+	.macro	ADD64 high,low,timer
+	al	\high,\timer
+	al	\low,\timer+4
+	brc	12,.+8
+	ahi	\high,1
 	.endm
 
-	.macro	RESTORE_ALL psworg,sync
-	mvc	\psworg(8),SP_PSW(%r15) # move user PSW to lowcore
-	.if !\sync
-	ni	\psworg+1,0xfd		# clear wait state bit
-	.endif
-	lm	%r0,%r15,SP_R0(%r15)	# load gprs 0-15 of user
-	stpt	__LC_EXIT_TIMER
-	lpsw	\psworg			# back to caller
+	.macro	SUB64 high,low,timer
+	sl	\high,\timer
+	sl	\low,\timer+4
+	brc	3,.+8
+	ahi	\high,-1
+	.endm
+
+	.macro	UPDATE_VTIME high,low,enter_timer
+	lm	\high,\low,__LC_EXIT_TIMER
+	SUB64	\high,\low,\enter_timer
+	ADD64	\high,\low,__LC_USER_TIMER
+	stm	\high,\low,__LC_USER_TIMER
+	lm	\high,\low,__LC_LAST_UPDATE_TIMER
+	SUB64	\high,\low,__LC_EXIT_TIMER
+	ADD64	\high,\low,__LC_SYSTEM_TIMER
+	stm	\high,\low,__LC_SYSTEM_TIMER
+	mvc	__LC_LAST_UPDATE_TIMER(8),\enter_timer
 	.endm
 
 	.macro REENABLE_IRQS
-	mvc	__SF_EMPTY(1,%r15),SP_PSW(%r15)
-	ni	__SF_EMPTY(%r15),0xbf
-	ssm	__SF_EMPTY(%r15)
+	st	%r8,__LC_RETURN_PSW
+	ni	__LC_RETURN_PSW,0xbf
+	ssm	__LC_RETURN_PSW
 	.endm
 
 	.section .kprobes.text, "ax"
@@ -197,14 +145,13 @@ STACK_SIZE  = 1 << STACK_SHIFT
  *  gpr2 = prev
  */
 ENTRY(__switch_to)
-	basr	%r1,0
-0:	l	%r4,__THREAD_info(%r2)		# get thread_info of prev
+	l	%r4,__THREAD_info(%r2)		# get thread_info of prev
 	l	%r5,__THREAD_info(%r3)		# get thread_info of next
 	tm	__TI_flags+3(%r4),_TIF_MCCK_PENDING # machine check pending?
-	bz	1f-0b(%r1)
+	jz	0f
 	ni	__TI_flags+3(%r4),255-_TIF_MCCK_PENDING	# clear flag in prev
 	oi	__TI_flags+3(%r5),_TIF_MCCK_PENDING	# set it in next
-1:	stm	%r6,%r15,__SF_GPRS(%r15)	# store gprs of prev task
+0:	stm	%r6,%r15,__SF_GPRS(%r15)	# store gprs of prev task
 	st	%r15,__THREAD_ksp(%r2)		# store kernel stack of prev
 	l	%r15,__THREAD_ksp(%r3)		# load kernel stack of next
 	lctl	%c4,%c4,__TASK_pid(%r3)		# load pid to control reg. 4
@@ -224,48 +171,55 @@ __critical_start:
 
 ENTRY(system_call)
 	stpt	__LC_SYNC_ENTER_TIMER
-sysc_saveall:
-	SAVE_ALL_SVC __LC_SVC_OLD_PSW,__LC_SAVE_AREA
-	CREATE_STACK_FRAME __LC_SAVE_AREA
-	l	%r12,__LC_THREAD_INFO	# load pointer to thread_info struct
-	mvc	SP_PSW(8,%r15),__LC_SVC_OLD_PSW
-	mvc	SP_SVC_CODE(4,%r15),__LC_SVC_ILC
-	oi	__TI_flags+3(%r12),_TIF_SYSCALL
+sysc_stm:
+	stm	%r8,%r15,__LC_SAVE_AREA_SYNC
+	l	%r12,__LC_THREAD_INFO
+	l	%r13,__LC_SVC_NEW_PSW+4
+sysc_per:
+	l	%r15,__LC_KERNEL_STACK
+	ahi	%r15,-(STACK_FRAME_OVERHEAD + __PT_SIZE)
+	la	%r11,STACK_FRAME_OVERHEAD(%r15)	# pointer to pt_regs
 sysc_vtime:
-	UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER
-sysc_stime:
-	UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
-sysc_update:
-	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
+	UPDATE_VTIME %r8,%r9,__LC_SYNC_ENTER_TIMER
+	stm	%r0,%r7,__PT_R0(%r11)
+	mvc	__PT_R8(32,%r11),__LC_SAVE_AREA_SYNC
+	mvc	__PT_PSW(8,%r11),__LC_SVC_OLD_PSW
+	mvc	__PT_INT_CODE(4,%r11),__LC_SVC_ILC
 sysc_do_svc:
-	xr	%r7,%r7
-	icm	%r7,3,SP_SVC_CODE+2(%r15)# load svc number and test for svc 0
-	bnz	BASED(sysc_nr_ok)	# svc number > 0
+	oi	__TI_flags+3(%r12),_TIF_SYSCALL
+	lh	%r8,__PT_INT_CODE+2(%r11)
+	sla	%r8,2				# shift and test for svc0
+	jnz	sysc_nr_ok
 	# svc 0: system call number in %r1
 	cl	%r1,BASED(.Lnr_syscalls)
-	bnl	BASED(sysc_nr_ok)
-	sth	%r1,SP_SVC_CODE+2(%r15)
-	lr	%r7,%r1 	  # copy svc number to %r7
+	jnl	sysc_nr_ok
+	sth	%r1,__PT_INT_CODE+2(%r11)
+	lr	%r8,%r1
+	sla	%r8,2
 sysc_nr_ok:
-	sll	%r7,2		  # svc number *4
-	l	%r10,BASED(.Lsysc_table)
+	l	%r10,BASED(.Lsys_call_table)	# 31 bit system call table
+	xc	__SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15)
+	st	%r2,__PT_ORIG_GPR2(%r11)
+	st	%r7,STACK_FRAME_OVERHEAD(%r15)
+	l	%r9,0(%r8,%r10)			# get system call addr.
 	tm	__TI_flags+2(%r12),_TIF_TRACE >> 8
-	mvc	SP_ARGS(4,%r15),SP_R7(%r15)
-	l	%r8,0(%r7,%r10)	  # get system call addr.
-	bnz	BASED(sysc_tracesys)
-	basr	%r14,%r8	  # call sys_xxxx
-	st	%r2,SP_R2(%r15)   # store return value (change R2 on stack)
+	jnz	sysc_tracesys
+	basr	%r14,%r9			# call sys_xxxx
+	st	%r2,__PT_R2(%r11)		# store return value
 
 sysc_return:
 	LOCKDEP_SYS_EXIT
 sysc_tif:
-	tm	SP_PSW+1(%r15),0x01	# returning to user ?
-	bno	BASED(sysc_restore)
+	tm	__PT_PSW+1(%r11),0x01		# returning to user ?
+	jno	sysc_restore
 	tm	__TI_flags+3(%r12),_TIF_WORK_SVC
-	bnz	BASED(sysc_work)  # there is work to do (signals etc.)
+	jnz	sysc_work			# check for work
 	ni	__TI_flags+3(%r12),255-_TIF_SYSCALL
 sysc_restore:
-	RESTORE_ALL __LC_RETURN_PSW,1
+	mvc	__LC_RETURN_PSW(8),__PT_PSW(%r11)
+	stpt	__LC_EXIT_TIMER
+	lm	%r0,%r15,__PT_R0(%r11)
+	lpsw	__LC_RETURN_PSW
 sysc_done:
 
 #
@@ -273,16 +227,16 @@ sysc_done:
 #
 sysc_work:
 	tm	__TI_flags+3(%r12),_TIF_MCCK_PENDING
-	bo	BASED(sysc_mcck_pending)
+	jo	sysc_mcck_pending
 	tm	__TI_flags+3(%r12),_TIF_NEED_RESCHED
-	bo	BASED(sysc_reschedule)
+	jo	sysc_reschedule
 	tm	__TI_flags+3(%r12),_TIF_SIGPENDING
-	bo	BASED(sysc_sigpending)
+	jo	sysc_sigpending
 	tm	__TI_flags+3(%r12),_TIF_NOTIFY_RESUME
-	bo	BASED(sysc_notify_resume)
+	jo	sysc_notify_resume
 	tm	__TI_flags+3(%r12),_TIF_PER_TRAP
-	bo	BASED(sysc_singlestep)
-	b	BASED(sysc_return)	# beware of critical section cleanup
+	jo	sysc_singlestep
+	j	sysc_return		# beware of critical section cleanup
 
 #
 # _TIF_NEED_RESCHED is set, call schedule
@@ -290,13 +244,13 @@ sysc_work:
 sysc_reschedule:
 	l	%r1,BASED(.Lschedule)
 	la	%r14,BASED(sysc_return)
-	br	%r1			# call scheduler
+	br	%r1			# call schedule
 
 #
 # _TIF_MCCK_PENDING is set, call handler
 #
 sysc_mcck_pending:
-	l	%r1,BASED(.Ls390_handle_mcck)
+	l	%r1,BASED(.Lhandle_mcck)
 	la	%r14,BASED(sysc_return)
 	br	%r1			# TIF bit will be cleared by handler
 
@@ -305,23 +259,24 @@ sysc_mcck_pending:
 #
 sysc_sigpending:
 	ni	__TI_flags+3(%r12),255-_TIF_PER_TRAP # clear TIF_PER_TRAP
-	la	%r2,SP_PTREGS(%r15)	# load pt_regs
+	lr	%r2,%r11		# pass pointer to pt_regs
 	l	%r1,BASED(.Ldo_signal)
 	basr	%r14,%r1		# call do_signal
 	tm	__TI_flags+3(%r12),_TIF_SYSCALL
-	bno	BASED(sysc_return)
-	lm	%r2,%r6,SP_R2(%r15)	# load svc arguments
-	xr	%r7,%r7			# svc 0 returns -ENOSYS
-	clc	SP_SVC_CODE+2(2,%r15),BASED(.Lnr_syscalls+2)
-	bnl	BASED(sysc_nr_ok)	# invalid svc number -> do svc 0
-	icm	%r7,3,SP_SVC_CODE+2(%r15)# load new svc number
-	b	BASED(sysc_nr_ok)	# restart svc
+	jno	sysc_return
+	lm	%r2,%r7,__PT_R2(%r11)	# load svc arguments
+	xr	%r8,%r8			# svc 0 returns -ENOSYS
+	clc	__PT_INT_CODE+2(2,%r11),BASED(.Lnr_syscalls+2)
+	jnl	sysc_nr_ok		# invalid svc number -> do svc 0
+	lh	%r8,__PT_INT_CODE+2(%r11)	# load new svc number
+	sla	%r8,2
+	j	sysc_nr_ok		# restart svc
 
 #
 # _TIF_NOTIFY_RESUME is set, call do_notify_resume
 #
 sysc_notify_resume:
-	la	%r2,SP_PTREGS(%r15)	# load pt_regs
+	lr	%r2,%r11		# pass pointer to pt_regs
 	l	%r1,BASED(.Ldo_notify_resume)
 	la	%r14,BASED(sysc_return)
 	br	%r1			# call do_notify_resume
@@ -331,56 +286,57 @@ sysc_notify_resume:
 #
 sysc_singlestep:
 	ni	__TI_flags+3(%r12),255-(_TIF_SYSCALL | _TIF_PER_TRAP)
-	la	%r2,SP_PTREGS(%r15)	# address of register-save area
-	l	%r1,BASED(.Lhandle_per)	# load adr. of per handler
-	la	%r14,BASED(sysc_return)	# load adr. of system return
-	br	%r1			# branch to do_per_trap
+	lr	%r2,%r11		# pass pointer to pt_regs
+	l	%r1,BASED(.Ldo_per_trap)
+	la	%r14,BASED(sysc_return)
+	br	%r1			# call do_per_trap
 
 #
 # call tracehook_report_syscall_entry/tracehook_report_syscall_exit before
 # and after the system call
 #
 sysc_tracesys:
-	l	%r1,BASED(.Ltrace_entry)
-	la	%r2,SP_PTREGS(%r15)	# load pt_regs
+	l	%r1,BASED(.Ltrace_enter)
+	lr	%r2,%r11		# pass pointer to pt_regs
 	la	%r3,0
 	xr	%r0,%r0
-	icm	%r0,3,SP_SVC_CODE(%r15)
-	st	%r0,SP_R2(%r15)
-	basr	%r14,%r1
+	icm	%r0,3,__PT_INT_CODE+2(%r11)
+	st	%r0,__PT_R2(%r11)
+	basr	%r14,%r1		# call do_syscall_trace_enter
 	cl	%r2,BASED(.Lnr_syscalls)
-	bnl	BASED(sysc_tracenogo)
-	lr	%r7,%r2
-	sll	%r7,2			# svc number *4
-	l	%r8,0(%r7,%r10)
+	jnl	sysc_tracenogo
+	lr	%r8,%r2
+	sll	%r8,2
+	l	%r9,0(%r8,%r10)
 sysc_tracego:
-	lm	%r3,%r6,SP_R3(%r15)
-	mvc	SP_ARGS(4,%r15),SP_R7(%r15)
-	l	%r2,SP_ORIG_R2(%r15)
-	basr	%r14,%r8		# call sys_xxx
-	st	%r2,SP_R2(%r15)		# store return value
+	lm	%r3,%r7,__PT_R3(%r11)
+	st	%r7,STACK_FRAME_OVERHEAD(%r15)
+	l	%r2,__PT_ORIG_GPR2(%r11)
+	basr	%r14,%r9		# call sys_xxx
+	st	%r2,__PT_R2(%r11)	# store return value
 sysc_tracenogo:
 	tm	__TI_flags+2(%r12),_TIF_TRACE >> 8
-	bz	BASED(sysc_return)
+	jz	sysc_return
 	l	%r1,BASED(.Ltrace_exit)
-	la	%r2,SP_PTREGS(%r15)	# load pt_regs
+	lr	%r2,%r11		# pass pointer to pt_regs
 	la	%r14,BASED(sysc_return)
-	br	%r1
+	br	%r1			# call do_syscall_trace_exit
 
 #
 # a new process exits the kernel with ret_from_fork
 #
 ENTRY(ret_from_fork)
+	la	%r11,STACK_FRAME_OVERHEAD(%r15)
+	l	%r12,__LC_THREAD_INFO
 	l	%r13,__LC_SVC_NEW_PSW+4
-	l	%r12,__LC_THREAD_INFO	# load pointer to thread_info struct
-	tm	SP_PSW+1(%r15),0x01	# forking a kernel thread ?
-	bo	BASED(0f)
-	st	%r15,SP_R15(%r15)	# store stack pointer for new kthread
-0:	l	%r1,BASED(.Lschedtail)
-	basr	%r14,%r1
+	tm	__PT_PSW+1(%r11),0x01	# forking a kernel thread ?
+	jo	0f
+	st	%r15,__PT_R15(%r11)	# store stack pointer for new kthread
+0:	l	%r1,BASED(.Lschedule_tail)
+	basr	%r14,%r1		# call schedule_tail
 	TRACE_IRQS_ON
-	stosm	__SF_EMPTY(%r15),0x03	# reenable interrupts
-	b	BASED(sysc_tracenogo)
+	ssm	__LC_SVC_NEW_PSW	# reenable interrupts
+	j	sysc_tracenogo
 
 #
 # kernel_execve function needs to deal with pt_regs that is not
@@ -390,153 +346,98 @@ ENTRY(kernel_execve)
 	stm	%r12,%r15,48(%r15)
 	lr	%r14,%r15
 	l	%r13,__LC_SVC_NEW_PSW+4
-	s	%r15,BASED(.Lc_spsize)
+	ahi	%r15,-(STACK_FRAME_OVERHEAD + __PT_SIZE)
 	st	%r14,__SF_BACKCHAIN(%r15)
-	la	%r12,SP_PTREGS(%r15)
+	la	%r12,STACK_FRAME_OVERHEAD(%r15)
 	xc	0(__PT_SIZE,%r12),0(%r12)
 	l	%r1,BASED(.Ldo_execve)
 	lr	%r5,%r12
-	basr	%r14,%r1
+	basr	%r14,%r1		# call do_execve
 	ltr	%r2,%r2
-	be	BASED(0f)
-	a	%r15,BASED(.Lc_spsize)
+	je	0f
+	ahi	%r15,(STACK_FRAME_OVERHEAD + __PT_SIZE)
 	lm	%r12,%r15,48(%r15)
 	br	%r14
 	# execve succeeded.
-0:	stnsm	__SF_EMPTY(%r15),0xfc	# disable interrupts
+0:	ssm	__LC_PGM_NEW_PSW	# disable I/O and ext. interrupts
 	l	%r15,__LC_KERNEL_STACK	# load ksp
-	s	%r15,BASED(.Lc_spsize)	# make room for registers & psw
-	mvc	SP_PTREGS(__PT_SIZE,%r15),0(%r12)	# copy pt_regs
+	ahi	%r15,-(STACK_FRAME_OVERHEAD + __PT_SIZE)
+	la	%r11,STACK_FRAME_OVERHEAD(%r15)
+	mvc	0(__PT_SIZE,%r11),0(%r12)	# copy pt_regs
 	l	%r12,__LC_THREAD_INFO
 	xc	__SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15)
-	stosm	__SF_EMPTY(%r15),0x03	# reenable interrupts
+	ssm	__LC_SVC_NEW_PSW	# reenable interrupts
 	l	%r1,BASED(.Lexecve_tail)
-	basr	%r14,%r1
-	b	BASED(sysc_return)
+	basr	%r14,%r1		# call execve_tail
+	j	sysc_return
 
 /*
  * Program check handler routine
  */
 
 ENTRY(pgm_check_handler)
-/*
- * First we need to check for a special case:
- * Single stepping an instruction that disables the PER event mask will
- * cause a PER event AFTER the mask has been set. Example: SVC or LPSW.
- * For a single stepped SVC the program check handler gets control after
- * the SVC new PSW has been loaded. But we want to execute the SVC first and
- * then handle the PER event. Therefore we update the SVC old PSW to point
- * to the pgm_check_handler and branch to the SVC handler after we checked
- * if we have to load the kernel stack register.
- * For every other possible cause for PER event without the PER mask set
- * we just ignore the PER event (FIXME: is there anything we have to do
- * for LPSW?).
- */
 	stpt	__LC_SYNC_ENTER_TIMER
-	SAVE_ALL_BASE __LC_SAVE_AREA
-	tm	__LC_PGM_INT_CODE+1,0x80 # check whether we got a per exception
-	bnz	BASED(pgm_per)		# got per exception -> special case
-	SAVE_ALL_PGM __LC_PGM_OLD_PSW,__LC_SAVE_AREA
-	CREATE_STACK_FRAME __LC_SAVE_AREA
-	mvc	SP_PSW(8,%r15),__LC_PGM_OLD_PSW
-	l	%r12,__LC_THREAD_INFO	# load pointer to thread_info struct
-	tm	SP_PSW+1(%r15),0x01	# interrupting from user ?
-	bz	BASED(pgm_no_vtime)
-	UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER
-	UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
-	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
-pgm_no_vtime:
-	l	%r3,__LC_PGM_ILC	# load program interruption code
-	l	%r4,__LC_TRANS_EXC_CODE
-	REENABLE_IRQS
-	la	%r8,0x7f
-	nr	%r8,%r3
-	sll	%r8,2
-	l	%r1,BASED(.Ljump_table)
-	l	%r1,0(%r8,%r1)		# load address of handler routine
-	la	%r2,SP_PTREGS(%r15)	# address of register-save area
-	basr	%r14,%r1		# branch to interrupt-handler
-pgm_exit:
-	b	BASED(sysc_return)
-
-#
-# handle per exception
-#
-pgm_per:
-	tm	__LC_PGM_OLD_PSW,0x40	# test if per event recording is on
-	bnz	BASED(pgm_per_std)	# ok, normal per event from user space
-# ok its one of the special cases, now we need to find out which one
-	clc	__LC_PGM_OLD_PSW(8),__LC_SVC_NEW_PSW
-	be	BASED(pgm_svcper)
-# no interesting special case, ignore PER event
-	lm	%r12,%r15,__LC_SAVE_AREA
-	lpsw	0x28
-
-#
-# Normal per exception
-#
-pgm_per_std:
-	SAVE_ALL_PGM __LC_PGM_OLD_PSW,__LC_SAVE_AREA
-	CREATE_STACK_FRAME __LC_SAVE_AREA
-	mvc	SP_PSW(8,%r15),__LC_PGM_OLD_PSW
-	l	%r12,__LC_THREAD_INFO	# load pointer to thread_info struct
-	tm	SP_PSW+1(%r15),0x01	# interrupting from user ?
-	bz	BASED(pgm_no_vtime2)
-	UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER
-	UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
-	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
-pgm_no_vtime2:
+	stm	%r8,%r15,__LC_SAVE_AREA_SYNC
+	l	%r12,__LC_THREAD_INFO
+	l	%r13,__LC_SVC_NEW_PSW+4
+	lm	%r8,%r9,__LC_PGM_OLD_PSW
+	tmh	%r8,0x0001		# test problem state bit
+	jnz	1f			# -> fault in user space
+	tmh	%r8,0x4000		# PER bit set in old PSW ?
+	jnz	0f			# -> enabled, can't be a double fault
+	tm	__LC_PGM_ILC+3,0x80	# check for per exception
+	jnz	pgm_svcper		# -> single stepped svc
+0:	CHECK_STACK STACK_SIZE,__LC_SAVE_AREA_SYNC
+	j	2f
+1:	UPDATE_VTIME %r14,%r15,__LC_SYNC_ENTER_TIMER
+	l	%r15,__LC_KERNEL_STACK
+2:	ahi	%r15,-(STACK_FRAME_OVERHEAD + __PT_SIZE)
+	la	%r11,STACK_FRAME_OVERHEAD(%r15)
+	stm	%r0,%r7,__PT_R0(%r11)
+	mvc	__PT_R8(32,%r11),__LC_SAVE_AREA_SYNC
+	stm	%r8,%r9,__PT_PSW(%r11)
+	mvc	__PT_INT_CODE(4,%r11),__LC_PGM_ILC
+	mvc	__PT_INT_PARM_LONG(4,%r11),__LC_TRANS_EXC_CODE
+	tm	__LC_PGM_ILC+3,0x80	# check for per exception
+	jz	0f
 	l	%r1,__TI_task(%r12)
-	tm	SP_PSW+1(%r15),0x01	# kernel per event ?
-	bz	BASED(kernel_per)
-	mvc	__THREAD_per_cause(2,%r1),__LC_PER_CAUSE
+	tmh	%r8,0x0001		# kernel per event ?
+	jz	pgm_kprobe
+	oi	__TI_flags+3(%r12),_TIF_PER_TRAP
 	mvc	__THREAD_per_address(4,%r1),__LC_PER_ADDRESS
+	mvc	__THREAD_per_cause(2,%r1),__LC_PER_CAUSE
 	mvc	__THREAD_per_paid(1,%r1),__LC_PER_PAID
-	oi	__TI_flags+3(%r12),_TIF_PER_TRAP # set TIF_PER_TRAP
-	l	%r3,__LC_PGM_ILC	# load program interruption code
-	l	%r4,__LC_TRANS_EXC_CODE
-	REENABLE_IRQS
-	la	%r8,0x7f
-	nr	%r8,%r3 		# clear per-event-bit and ilc
-	be	BASED(pgm_exit2)	# only per or per+check ?
-	sll	%r8,2
+0:	REENABLE_IRQS
+	xc	__SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15)
 	l	%r1,BASED(.Ljump_table)
-	l	%r1,0(%r8,%r1)		# load address of handler routine
-	la	%r2,SP_PTREGS(%r15)	# address of register-save area
+	la	%r10,0x7f
+	n	%r10,__PT_INT_CODE(%r11)
+	je	sysc_return
+	sll	%r10,2
+	l	%r1,0(%r10,%r1)		# load address of handler routine
+	lr	%r2,%r11		# pass pointer to pt_regs
 	basr	%r14,%r1		# branch to interrupt-handler
-pgm_exit2:
-	b	BASED(sysc_return)
+	j	sysc_return
 
 #
-# it was a single stepped SVC that is causing all the trouble
+# PER event in supervisor state, must be kprobes
 #
-pgm_svcper:
-	SAVE_ALL_PGM __LC_SVC_OLD_PSW,__LC_SAVE_AREA
-	CREATE_STACK_FRAME __LC_SAVE_AREA
-	l	%r12,__LC_THREAD_INFO	# load pointer to thread_info struct
-	mvc	SP_PSW(8,%r15),__LC_SVC_OLD_PSW
-	mvc	SP_SVC_CODE(4,%r15),__LC_SVC_ILC
-	oi	__TI_flags+3(%r12),(_TIF_SYSCALL | _TIF_PER_TRAP)
-	UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER
-	UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
-	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
-	l	%r8,__TI_task(%r12)
-	mvc	__THREAD_per_cause(2,%r8),__LC_PER_CAUSE
-	mvc	__THREAD_per_address(4,%r8),__LC_PER_ADDRESS
-	mvc	__THREAD_per_paid(1,%r8),__LC_PER_PAID
-	stosm	__SF_EMPTY(%r15),0x03	# reenable interrupts
-	lm	%r2,%r6,SP_R2(%r15)	# load svc arguments
-	b	BASED(sysc_do_svc)
+pgm_kprobe:
+	REENABLE_IRQS
+	xc	__SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15)
+	l	%r1,BASED(.Ldo_per_trap)
+	lr	%r2,%r11		# pass pointer to pt_regs
+	basr	%r14,%r1		# call do_per_trap
+	j	sysc_return
 
 #
-# per was called from kernel, must be kprobes
+# single stepped system call
 #
-kernel_per:
-	REENABLE_IRQS
-	la	%r2,SP_PTREGS(%r15)	# address of register-save area
-	l	%r1,BASED(.Lhandle_per)	# load adr. of per handler
-	basr	%r14,%r1		# branch to do_single_step
-	b	BASED(pgm_exit)
+pgm_svcper:
+	oi	__TI_flags+3(%r12),_TIF_PER_TRAP
+	mvc	__LC_RETURN_PSW(4),__LC_SVC_NEW_PSW
+	mvc	__LC_RETURN_PSW+4(4),BASED(.Lsysc_per)
+	lpsw	__LC_RETURN_PSW		# branch to sysc_per and enable irqs
 
 /*
  * IO interrupt handler routine
@@ -545,28 +446,35 @@ kernel_per:
 ENTRY(io_int_handler)
 	stck	__LC_INT_CLOCK
 	stpt	__LC_ASYNC_ENTER_TIMER
-	SAVE_ALL_ASYNC __LC_IO_OLD_PSW,__LC_SAVE_AREA+16
-	CREATE_STACK_FRAME __LC_SAVE_AREA+16
-	mvc	SP_PSW(8,%r15),0(%r12)	# move user PSW to stack
-	l	%r12,__LC_THREAD_INFO	# load pointer to thread_info struct
-	tm	SP_PSW+1(%r15),0x01	# interrupting from user ?
-	bz	BASED(io_no_vtime)
-	UPDATE_VTIME __LC_EXIT_TIMER,__LC_ASYNC_ENTER_TIMER,__LC_USER_TIMER
-	UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
-	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_ASYNC_ENTER_TIMER
-io_no_vtime:
+	stm	%r8,%r15,__LC_SAVE_AREA_ASYNC
+	l	%r12,__LC_THREAD_INFO
+	l	%r13,__LC_SVC_NEW_PSW+4
+	lm	%r8,%r9,__LC_IO_OLD_PSW
+	tmh	%r8,0x0001		# interrupting from user ?
+	jz	io_skip
+	UPDATE_VTIME %r14,%r15,__LC_ASYNC_ENTER_TIMER
+io_skip:
+	SWITCH_ASYNC __LC_SAVE_AREA_ASYNC,__LC_ASYNC_STACK,STACK_SHIFT
+	stm	%r0,%r7,__PT_R0(%r11)
+	mvc	__PT_R8(32,%r11),__LC_SAVE_AREA_ASYNC
+	stm	%r8,%r9,__PT_PSW(%r11)
 	TRACE_IRQS_OFF
-	l	%r1,BASED(.Ldo_IRQ)	# load address of do_IRQ
-	la	%r2,SP_PTREGS(%r15)	# address of register-save area
-	basr	%r14,%r1		# branch to standard irq handler
+	xc	__SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15)
+	l	%r1,BASED(.Ldo_IRQ)
+	lr	%r2,%r11		# pass pointer to pt_regs
+	basr	%r14,%r1		# call do_IRQ
 io_return:
 	LOCKDEP_SYS_EXIT
 	TRACE_IRQS_ON
 io_tif:
 	tm	__TI_flags+3(%r12),_TIF_WORK_INT
-	bnz	BASED(io_work)		# there is work to do (signals etc.)
+	jnz	io_work			# there is work to do (signals etc.)
 io_restore:
-	RESTORE_ALL __LC_RETURN_PSW,0
+	mvc	__LC_RETURN_PSW(8),__PT_PSW(%r11)
+	ni	__LC_RETURN_PSW+1,0xfd	# clean wait state bit
+	stpt	__LC_EXIT_TIMER
+	lm	%r0,%r15,__PT_R0(%r11)
+	lpsw	__LC_RETURN_PSW
 io_done:
 
 #
@@ -577,28 +485,29 @@ io_done:
 # Before any work can be done, a switch to the kernel stack is required.
 #
 io_work:
-	tm	SP_PSW+1(%r15),0x01	# returning to user ?
-	bo	BASED(io_work_user)	# yes -> do resched & signal
+	tm	__PT_PSW+1(%r11),0x01	# returning to user ?
+	jo	io_work_user		# yes -> do resched & signal
 #ifdef CONFIG_PREEMPT
 	# check for preemptive scheduling
 	icm	%r0,15,__TI_precount(%r12)
-	bnz	BASED(io_restore)	# preemption disabled
+	jnz	io_restore		# preemption disabled
 	tm	__TI_flags+3(%r12),_TIF_NEED_RESCHED
-	bno	BASED(io_restore)
+	jno	io_restore
 	# switch to kernel stack
-	l	%r1,SP_R15(%r15)
-	s	%r1,BASED(.Lc_spsize)
-	mvc	SP_PTREGS(__PT_SIZE,%r1),SP_PTREGS(%r15)
-	xc	__SF_BACKCHAIN(4,%r1),__SF_BACKCHAIN(%r1) # clear back chain
+	l	%r1,__PT_R15(%r11)
+	ahi	%r1,-(STACK_FRAME_OVERHEAD + __PT_SIZE)
+	mvc	STACK_FRAME_OVERHEAD(__PT_SIZE,%r1),0(%r11)
+	xc	__SF_BACKCHAIN(4,%r1),__SF_BACKCHAIN(%r1)
+	la	%r11,STACK_FRAME_OVERHEAD(%r1)
 	lr	%r15,%r1
 	# TRACE_IRQS_ON already done at io_return, call
 	# TRACE_IRQS_OFF to keep things symmetrical
 	TRACE_IRQS_OFF
-	l	%r1,BASED(.Lpreempt_schedule_irq)
+	l	%r1,BASED(.Lpreempt_irq)
 	basr	%r14,%r1		# call preempt_schedule_irq
-	b	BASED(io_return)
+	j	io_return
 #else
-	b	BASED(io_restore)
+	j	io_restore
 #endif
 
 #
@@ -606,9 +515,10 @@ io_work:
 #
 io_work_user:
 	l	%r1,__LC_KERNEL_STACK
-	s	%r1,BASED(.Lc_spsize)
-	mvc	SP_PTREGS(__PT_SIZE,%r1),SP_PTREGS(%r15)
-	xc	__SF_BACKCHAIN(4,%r1),__SF_BACKCHAIN(%r1) # clear back chain
+	ahi	%r1,-(STACK_FRAME_OVERHEAD + __PT_SIZE)
+	mvc	STACK_FRAME_OVERHEAD(__PT_SIZE,%r1),0(%r11)
+	xc	__SF_BACKCHAIN(4,%r1),__SF_BACKCHAIN(%r1)
+	la	%r11,STACK_FRAME_OVERHEAD(%r1)
 	lr	%r15,%r1
 
 #
@@ -618,24 +528,24 @@ io_work_user:
 #
 io_work_tif:
 	tm	__TI_flags+3(%r12),_TIF_MCCK_PENDING
-	bo	BASED(io_mcck_pending)
+	jo	io_mcck_pending
 	tm	__TI_flags+3(%r12),_TIF_NEED_RESCHED
-	bo	BASED(io_reschedule)
+	jo	io_reschedule
 	tm	__TI_flags+3(%r12),_TIF_SIGPENDING
-	bo	BASED(io_sigpending)
+	jo	io_sigpending
 	tm	__TI_flags+3(%r12),_TIF_NOTIFY_RESUME
-	bo	BASED(io_notify_resume)
-	b	BASED(io_return)	# beware of critical section cleanup
+	jo	io_notify_resume
+	j	io_return		# beware of critical section cleanup
 
 #
 # _TIF_MCCK_PENDING is set, call handler
 #
 io_mcck_pending:
 	# TRACE_IRQS_ON already done at io_return
-	l	%r1,BASED(.Ls390_handle_mcck)
+	l	%r1,BASED(.Lhandle_mcck)
 	basr	%r14,%r1		# TIF bit will be cleared by handler
 	TRACE_IRQS_OFF
-	b	BASED(io_return)
+	j	io_return
 
 #
 # _TIF_NEED_RESCHED is set, call schedule
@@ -643,37 +553,37 @@ io_mcck_pending:
 io_reschedule:
 	# TRACE_IRQS_ON already done at io_return
 	l	%r1,BASED(.Lschedule)
-	stosm	__SF_EMPTY(%r15),0x03	# reenable interrupts
+	ssm	__LC_SVC_NEW_PSW	# reenable interrupts
 	basr	%r14,%r1		# call scheduler
-	stnsm	__SF_EMPTY(%r15),0xfc	# disable I/O and ext. interrupts
+	ssm	__LC_PGM_NEW_PSW	# disable I/O and ext. interrupts
 	TRACE_IRQS_OFF
-	b	BASED(io_return)
+	j	io_return
 
 #
 # _TIF_SIGPENDING is set, call do_signal
 #
 io_sigpending:
 	# TRACE_IRQS_ON already done at io_return
-	stosm	__SF_EMPTY(%r15),0x03	# reenable interrupts
-	la	%r2,SP_PTREGS(%r15)	# load pt_regs
 	l	%r1,BASED(.Ldo_signal)
+	ssm	__LC_SVC_NEW_PSW	# reenable interrupts
+	lr	%r2,%r11		# pass pointer to pt_regs
 	basr	%r14,%r1		# call do_signal
-	stnsm	__SF_EMPTY(%r15),0xfc	# disable I/O and ext. interrupts
+	ssm	__LC_PGM_NEW_PSW	# disable I/O and ext. interrupts
 	TRACE_IRQS_OFF
-	b	BASED(io_return)
+	j	io_return
 
 #
 # _TIF_SIGPENDING is set, call do_signal
 #
 io_notify_resume:
 	# TRACE_IRQS_ON already done at io_return
-	stosm	__SF_EMPTY(%r15),0x03	# reenable interrupts
-	la	%r2,SP_PTREGS(%r15)	# load pt_regs
 	l	%r1,BASED(.Ldo_notify_resume)
-	basr	%r14,%r1		# call do_signal
-	stnsm	__SF_EMPTY(%r15),0xfc	# disable I/O and ext. interrupts
+	ssm	__LC_SVC_NEW_PSW	# reenable interrupts
+	lr	%r2,%r11		# pass pointer to pt_regs
+	basr	%r14,%r1		# call do_notify_resume
+	ssm	__LC_PGM_NEW_PSW	# disable I/O and ext. interrupts
 	TRACE_IRQS_OFF
-	b	BASED(io_return)
+	j	io_return
 
 /*
  * External interrupt handler routine
@@ -682,23 +592,25 @@ io_notify_resume:
 ENTRY(ext_int_handler)
 	stck	__LC_INT_CLOCK
 	stpt	__LC_ASYNC_ENTER_TIMER
-	SAVE_ALL_ASYNC __LC_EXT_OLD_PSW,__LC_SAVE_AREA+16
-	CREATE_STACK_FRAME __LC_SAVE_AREA+16
-	mvc	SP_PSW(8,%r15),0(%r12)	# move user PSW to stack
-	l	%r12,__LC_THREAD_INFO	# load pointer to thread_info struct
-	tm	SP_PSW+1(%r15),0x01	# interrupting from user ?
-	bz	BASED(ext_no_vtime)
-	UPDATE_VTIME __LC_EXIT_TIMER,__LC_ASYNC_ENTER_TIMER,__LC_USER_TIMER
-	UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
-	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_ASYNC_ENTER_TIMER
-ext_no_vtime:
+	stm	%r8,%r15,__LC_SAVE_AREA_ASYNC
+	l	%r12,__LC_THREAD_INFO
+	l	%r13,__LC_SVC_NEW_PSW+4
+	lm	%r8,%r9,__LC_EXT_OLD_PSW
+	tmh	%r8,0x0001		# interrupting from user ?
+	jz	ext_skip
+	UPDATE_VTIME %r14,%r15,__LC_ASYNC_ENTER_TIMER
+ext_skip:
+	SWITCH_ASYNC __LC_SAVE_AREA_ASYNC,__LC_ASYNC_STACK,STACK_SHIFT
+	stm	%r0,%r7,__PT_R0(%r11)
+	mvc	__PT_R8(32,%r11),__LC_SAVE_AREA_ASYNC
+	stm	%r8,%r9,__PT_PSW(%r11)
 	TRACE_IRQS_OFF
-	la	%r2,SP_PTREGS(%r15)	# address of register-save area
+	lr	%r2,%r11		# pass pointer to pt_regs
 	l	%r3,__LC_CPU_ADDRESS	# get cpu address + interruption code
 	l	%r4,__LC_EXT_PARAMS	# get external parameters
 	l	%r1,BASED(.Ldo_extint)
-	basr	%r14,%r1
-	b	BASED(io_return)
+	basr	%r14,%r1		# call do_extint
+	j	io_return
 
 __critical_end:
 
@@ -710,82 +622,74 @@ ENTRY(mcck_int_handler)
 	stck	__LC_MCCK_CLOCK
 	spt	__LC_CPU_TIMER_SAVE_AREA	# revalidate cpu timer
 	lm	%r0,%r15,__LC_GPREGS_SAVE_AREA	# revalidate gprs
-	SAVE_ALL_BASE __LC_SAVE_AREA+32
-	la	%r12,__LC_MCK_OLD_PSW
+	l	%r12,__LC_THREAD_INFO
+	l	%r13,__LC_SVC_NEW_PSW+4
+	lm	%r8,%r9,__LC_MCK_OLD_PSW
 	tm	__LC_MCCK_CODE,0x80	# system damage?
-	bo	BASED(mcck_int_main)	# yes -> rest of mcck code invalid
-	mvc	__LC_MCCK_ENTER_TIMER(8),__LC_CPU_TIMER_SAVE_AREA
+	jo	mcck_panic		# yes -> rest of mcck code invalid
+	la	%r14,__LC_CPU_TIMER_SAVE_AREA
+	mvc	__LC_MCCK_ENTER_TIMER(8),0(%r14)
 	tm	__LC_MCCK_CODE+5,0x02	# stored cpu timer value valid?
-	bo	BASED(1f)
+	jo	3f
 	la	%r14,__LC_SYNC_ENTER_TIMER
 	clc	0(8,%r14),__LC_ASYNC_ENTER_TIMER
-	bl	BASED(0f)
+	jl	0f
 	la	%r14,__LC_ASYNC_ENTER_TIMER
 0:	clc	0(8,%r14),__LC_EXIT_TIMER
-	bl	BASED(0f)
+	jl	1f
 	la	%r14,__LC_EXIT_TIMER
-0:	clc	0(8,%r14),__LC_LAST_UPDATE_TIMER
-	bl	BASED(0f)
+1:	clc	0(8,%r14),__LC_LAST_UPDATE_TIMER
+	jl	2f
 	la	%r14,__LC_LAST_UPDATE_TIMER
-0:	spt	0(%r14)
+2:	spt	0(%r14)
 	mvc	__LC_MCCK_ENTER_TIMER(8),0(%r14)
-1:	tm	__LC_MCCK_CODE+2,0x09	# mwp + ia of old psw valid?
-	bno	BASED(mcck_int_main)	# no -> skip cleanup critical
-	tm	__LC_MCK_OLD_PSW+1,0x01	# test problem state bit
-	bnz	BASED(mcck_int_main)	# from user -> load async stack
-	clc	__LC_MCK_OLD_PSW+4(4),BASED(.Lcritical_end)
-	bhe	BASED(mcck_int_main)
-	clc	__LC_MCK_OLD_PSW+4(4),BASED(.Lcritical_start)
-	bl	BASED(mcck_int_main)
-	l	%r14,BASED(.Lcleanup_critical)
-	basr	%r14,%r14
-mcck_int_main:
-	l	%r14,__LC_PANIC_STACK	# are we already on the panic stack?
-	slr	%r14,%r15
-	sra	%r14,PAGE_SHIFT
-	be	BASED(0f)
-	l	%r15,__LC_PANIC_STACK	# load panic stack
-0:	s	%r15,BASED(.Lc_spsize)	# make room for registers & psw
-	CREATE_STACK_FRAME __LC_SAVE_AREA+32
-	mvc	SP_PSW(8,%r15),0(%r12)
-	l	%r12,__LC_THREAD_INFO	# load pointer to thread_info struct
-	tm	__LC_MCCK_CODE+2,0x08	# mwp of old psw valid?
-	bno	BASED(mcck_no_vtime)	# no -> skip cleanup critical
-	tm	SP_PSW+1(%r15),0x01	# interrupting from user ?
-	bz	BASED(mcck_no_vtime)
-	UPDATE_VTIME __LC_EXIT_TIMER,__LC_MCCK_ENTER_TIMER,__LC_USER_TIMER
-	UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
-	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_MCCK_ENTER_TIMER
-mcck_no_vtime:
-	la	%r2,SP_PTREGS(%r15)	# load pt_regs
-	l	%r1,BASED(.Ls390_mcck)
-	basr	%r14,%r1		# call machine check handler
-	tm	SP_PSW+1(%r15),0x01	# returning to user ?
-	bno	BASED(mcck_return)
+3:	tm	__LC_MCCK_CODE+2,0x09	# mwp + ia of old psw valid?
+	jno	mcck_panic		# no -> skip cleanup critical
+	tm	%r8,0x0001		# interrupting from user ?
+	jz	mcck_skip
+	UPDATE_VTIME %r14,%r15,__LC_MCCK_ENTER_TIMER
+mcck_skip:
+	SWITCH_ASYNC __LC_GPREGS_SAVE_AREA+32,__LC_PANIC_STACK,PAGE_SHIFT
+	mvc	__PT_R0(64,%r11),__LC_GPREGS_SAVE_AREA
+	stm	%r8,%r9,__PT_PSW(%r11)
+	xc	__SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15)
+	l	%r1,BASED(.Ldo_machine_check)
+	lr	%r2,%r11		# pass pointer to pt_regs
+	basr	%r14,%r1		# call s390_do_machine_check
+	tm	__PT_PSW+1(%r11),0x01	# returning to user ?
+	jno	mcck_return
 	l	%r1,__LC_KERNEL_STACK	# switch to kernel stack
-	s	%r1,BASED(.Lc_spsize)
-	mvc	SP_PTREGS(__PT_SIZE,%r1),SP_PTREGS(%r15)
-	xc	__SF_BACKCHAIN(4,%r1),__SF_BACKCHAIN(%r1) # clear back chain
+	ahi	%r1,-(STACK_FRAME_OVERHEAD + __PT_SIZE)
+	mvc	STACK_FRAME_OVERHEAD(__PT_SIZE,%r1),0(%r11)
+	xc	__SF_BACKCHAIN(4,%r1),__SF_BACKCHAIN(%r1)
+	la	%r11,STACK_FRAME_OVERHEAD(%r15)
 	lr	%r15,%r1
-	stosm	__SF_EMPTY(%r15),0x04	# turn dat on
+	ssm	__LC_PGM_NEW_PSW	# turn dat on, keep irqs off
 	tm	__TI_flags+3(%r12),_TIF_MCCK_PENDING
-	bno	BASED(mcck_return)
+	jno	mcck_return
 	TRACE_IRQS_OFF
-	l	%r1,BASED(.Ls390_handle_mcck)
-	basr	%r14,%r1		# call machine check handler
+	l	%r1,BASED(.Lhandle_mcck)
+	basr	%r14,%r1		# call s390_handle_mcck
 	TRACE_IRQS_ON
 mcck_return:
-	mvc	__LC_RETURN_MCCK_PSW(8),SP_PSW(%r15) # move return PSW
+	mvc	__LC_RETURN_MCCK_PSW(8),__PT_PSW(%r11) # move return PSW
 	ni	__LC_RETURN_MCCK_PSW+1,0xfd # clear wait state bit
 	tm	__LC_RETURN_MCCK_PSW+1,0x01 # returning to user ?
-	bno	BASED(0f)
-	lm	%r0,%r15,SP_R0(%r15)	# load gprs 0-15
+	jno	0f
+	lm	%r0,%r15,__PT_R0(%r11)
 	stpt	__LC_EXIT_TIMER
-	lpsw	__LC_RETURN_MCCK_PSW	# back to caller
-0:	lm	%r0,%r15,SP_R0(%r15)	# load gprs 0-15
-	lpsw	__LC_RETURN_MCCK_PSW	# back to caller
+	lpsw	__LC_RETURN_MCCK_PSW
+0:	lm	%r0,%r15,__PT_R0(%r11)
+	lpsw	__LC_RETURN_MCCK_PSW
 
-	RESTORE_ALL __LC_RETURN_MCCK_PSW,0
+mcck_panic:
+	l	%r14,__LC_PANIC_STACK
+	slr	%r14,%r15
+	sra	%r14,PAGE_SHIFT
+	jz	0f
+	l	%r15,__LC_PANIC_STACK
+0:	ahi	%r15,-(STACK_FRAME_OVERHEAD + __PT_SIZE)
+	j	mcck_skip
 
 /*
  * Restart interruption handler, kick starter for additional CPUs
@@ -799,18 +703,18 @@ restart_base:
 	stck	__LC_LAST_UPDATE_CLOCK
 	mvc	__LC_LAST_UPDATE_TIMER(8),restart_vtime-restart_base(%r1)
 	mvc	__LC_EXIT_TIMER(8),restart_vtime-restart_base(%r1)
-	l	%r15,__LC_SAVE_AREA+60	# load ksp
+	l	%r15,__LC_GPREGS_SAVE_AREA+60 # load ksp
 	lctl	%c0,%c15,__LC_CREGS_SAVE_AREA # get new ctl regs
 	lam	%a0,%a15,__LC_AREGS_SAVE_AREA
-	lm	%r6,%r15,__SF_GPRS(%r15) # load registers from clone
+	lm	%r6,%r15,__SF_GPRS(%r15)# load registers from clone
 	l	%r1,__LC_THREAD_INFO
 	mvc	__LC_USER_TIMER(8),__TI_user_timer(%r1)
 	mvc	__LC_SYSTEM_TIMER(8),__TI_system_timer(%r1)
 	xc	__LC_STEAL_TIMER(8),__LC_STEAL_TIMER
-	stosm	__SF_EMPTY(%r15),0x04	# now we can turn dat on
+	ssm	__LC_PGM_NEW_PSW	# turn dat on, keep irqs off
 	basr	%r14,0
 	l	%r14,restart_addr-.(%r14)
-	basr	%r14,%r14		# branch to start_secondary
+	basr	%r14,%r14		# call start_secondary
 restart_addr:
 	.long	start_secondary
 	.align	8
@@ -835,19 +739,19 @@ restart_go:
 # PSW restart interrupt handler
 #
 ENTRY(psw_restart_int_handler)
-	st	%r15,__LC_SAVE_AREA+48(%r0)	# save r15
+	st	%r15,__LC_SAVE_AREA_RESTART
 	basr	%r15,0
 0:	l	%r15,.Lrestart_stack-0b(%r15)	# load restart stack
 	l	%r15,0(%r15)
-	ahi	%r15,-SP_SIZE			# make room for pt_regs
-	stm	%r0,%r14,SP_R0(%r15)		# store gprs %r0-%r14 to stack
-	mvc	SP_R15(4,%r15),__LC_SAVE_AREA+48(%r0)# store saved %r15 to stack
-	mvc	SP_PSW(8,%r15),__LC_RST_OLD_PSW(%r0) # store restart old psw
-	xc	__SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15) # set backchain to 0
+	ahi	%r15,-__PT_SIZE			# create pt_regs on stack
+	stm	%r0,%r14,__PT_R0(%r15)
+	mvc	__PT_R15(4,%r15),__LC_SAVE_AREA_RESTART
+	mvc	__PT_PSW(8,%r15),__LC_RST_OLD_PSW # store restart old psw
+	ahi	%r15,-STACK_FRAME_OVERHEAD
+	xc	__SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15)
 	basr	%r14,0
 1:	l	%r14,.Ldo_restart-1b(%r14)
 	basr	%r14,%r14
-
 	basr	%r14,0				# load disabled wait PSW if
 2:	lpsw	restart_psw_crash-2b(%r14)	# do_restart returns
 	.align 4
@@ -869,215 +773,174 @@ restart_psw_crash:
  */
 stack_overflow:
 	l	%r15,__LC_PANIC_STACK	# change to panic stack
-	sl	%r15,BASED(.Lc_spsize)
-	mvc	SP_PSW(8,%r15),0(%r12)	# move user PSW to stack
-	stm	%r0,%r11,SP_R0(%r15)	# store gprs %r0-%r11 to kernel stack
-	la	%r1,__LC_SAVE_AREA
-	ch	%r12,BASED(.L0x020)	# old psw addr == __LC_SVC_OLD_PSW ?
-	be	BASED(0f)
-	ch	%r12,BASED(.L0x028)	# old psw addr == __LC_PGM_OLD_PSW ?
-	be	BASED(0f)
-	la	%r1,__LC_SAVE_AREA+16
-0:	mvc	SP_R12(16,%r15),0(%r1)	# move %r12-%r15 to stack
-	xc	__SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15) # clear back chain
-	l	%r1,BASED(1f)		# branch to kernel_stack_overflow
-	la	%r2,SP_PTREGS(%r15)	# load pt_regs
-	br	%r1
+	ahi	%r15,-__PT_SIZE		# create pt_regs
+	stm	%r0,%r7,__PT_R0(%r15)
+	stm	%r8,%r9,__PT_PSW(%r15)
+	mvc	__PT_R8(32,%r11),0(%r14)
+	lr	%r15,%r11
+	ahi	%r15,-STACK_FRAME_OVERHEAD
+	l	%r1,BASED(1f)
+	xc	__SF_BACKCHAIN(4,%r15),__SF_BACKCHAIN(%r15)
+	lr	%r2,%r11		# pass pointer to pt_regs
+	br	%r1			# branch to kernel_stack_overflow
 1:	.long	kernel_stack_overflow
 #endif
 
-cleanup_table_system_call:
-	.long	system_call + 0x80000000, sysc_do_svc + 0x80000000
-cleanup_table_sysc_tif:
-	.long	sysc_tif + 0x80000000, sysc_restore + 0x80000000
-cleanup_table_sysc_restore:
-	.long	sysc_restore + 0x80000000, sysc_done + 0x80000000
-cleanup_table_io_tif:
-	.long	io_tif + 0x80000000, io_restore + 0x80000000
-cleanup_table_io_restore:
-	.long	io_restore + 0x80000000, io_done + 0x80000000
+cleanup_table:
+	.long	system_call + 0x80000000
+	.long	sysc_do_svc + 0x80000000
+	.long	sysc_tif + 0x80000000
+	.long	sysc_restore + 0x80000000
+	.long	sysc_done + 0x80000000
+	.long	io_tif + 0x80000000
+	.long	io_restore + 0x80000000
+	.long	io_done + 0x80000000
 
 cleanup_critical:
-	clc	4(4,%r12),BASED(cleanup_table_system_call)
-	bl	BASED(0f)
-	clc	4(4,%r12),BASED(cleanup_table_system_call+4)
-	bl	BASED(cleanup_system_call)
-0:
-	clc	4(4,%r12),BASED(cleanup_table_sysc_tif)
-	bl	BASED(0f)
-	clc	4(4,%r12),BASED(cleanup_table_sysc_tif+4)
-	bl	BASED(cleanup_sysc_tif)
-0:
-	clc	4(4,%r12),BASED(cleanup_table_sysc_restore)
-	bl	BASED(0f)
-	clc	4(4,%r12),BASED(cleanup_table_sysc_restore+4)
-	bl	BASED(cleanup_sysc_restore)
-0:
-	clc	4(4,%r12),BASED(cleanup_table_io_tif)
-	bl	BASED(0f)
-	clc	4(4,%r12),BASED(cleanup_table_io_tif+4)
-	bl	BASED(cleanup_io_tif)
-0:
-	clc	4(4,%r12),BASED(cleanup_table_io_restore)
-	bl	BASED(0f)
-	clc	4(4,%r12),BASED(cleanup_table_io_restore+4)
-	bl	BASED(cleanup_io_restore)
-0:
-	br	%r14
+	cl	%r9,BASED(cleanup_table)	# system_call
+	jl	0f
+	cl	%r9,BASED(cleanup_table+4)	# sysc_do_svc
+	jl	cleanup_system_call
+	cl	%r9,BASED(cleanup_table+8)	# sysc_tif
+	jl	0f
+	cl	%r9,BASED(cleanup_table+12)	# sysc_restore
+	jl	cleanup_sysc_tif
+	cl	%r9,BASED(cleanup_table+16)	# sysc_done
+	jl	cleanup_sysc_restore
+	cl	%r9,BASED(cleanup_table+20)	# io_tif
+	jl	0f
+	cl	%r9,BASED(cleanup_table+24)	# io_restore
+	jl	cleanup_io_tif
+	cl	%r9,BASED(cleanup_table+28)	# io_done
+	jl	cleanup_io_restore
+0:	br	%r14
 
 cleanup_system_call:
-	mvc	__LC_RETURN_PSW(8),0(%r12)
-	clc	__LC_RETURN_PSW+4(4),BASED(cleanup_system_call_insn+4)
-	bh	BASED(0f)
-	mvc	__LC_SYNC_ENTER_TIMER(8),__LC_MCCK_ENTER_TIMER
-	c	%r12,BASED(.Lmck_old_psw)
-	be	BASED(0f)
+	# check if stpt has been executed
+	cl	%r9,BASED(cleanup_system_call_insn)
+	jh	0f
 	mvc	__LC_SYNC_ENTER_TIMER(8),__LC_ASYNC_ENTER_TIMER
-0:	c	%r12,BASED(.Lmck_old_psw)
-	la	%r12,__LC_SAVE_AREA+32
-	be	BASED(0f)
-	la	%r12,__LC_SAVE_AREA+16
-0:	clc	__LC_RETURN_PSW+4(4),BASED(cleanup_system_call_insn+8)
-	bhe	BASED(cleanup_vtime)
-	clc	__LC_RETURN_PSW+4(4),BASED(cleanup_system_call_insn)
-	bh	BASED(0f)
-	mvc	__LC_SAVE_AREA(16),0(%r12)
-0:	st	%r13,4(%r12)
-	l	%r15,__LC_KERNEL_STACK	# problem state -> load ksp
-	s	%r15,BASED(.Lc_spsize)	# make room for registers & psw
-	st	%r15,12(%r12)
-	CREATE_STACK_FRAME __LC_SAVE_AREA
-	mvc	0(4,%r12),__LC_THREAD_INFO
-	l	%r12,__LC_THREAD_INFO
-	mvc	SP_PSW(8,%r15),__LC_SVC_OLD_PSW
-	mvc	SP_SVC_CODE(4,%r15),__LC_SVC_ILC
-	oi	__TI_flags+3(%r12),_TIF_SYSCALL
-cleanup_vtime:
-	clc	__LC_RETURN_PSW+4(4),BASED(cleanup_system_call_insn+12)
-	bhe	BASED(cleanup_stime)
-	UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER
-cleanup_stime:
-	clc	__LC_RETURN_PSW+4(4),BASED(cleanup_system_call_insn+16)
-	bh	BASED(cleanup_update)
-	UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
-cleanup_update:
+	chi	%r11,__LC_SAVE_AREA_ASYNC
+	je	0f
+	mvc	__LC_SYNC_ENTER_TIMER(8),__LC_MCCK_ENTER_TIMER
+0:	# check if stm has been executed
+	cl	%r9,BASED(cleanup_system_call_insn+4)
+	jh	0f
+	mvc	__LC_SAVE_AREA_SYNC(32),0(%r11)
+0:	# set up saved registers r12, and r13
+	st	%r12,16(%r11)		# r12 thread-info pointer
+	st	%r13,20(%r11)		# r13 literal-pool pointer
+	# check if the user time calculation has been done
+	cl	%r9,BASED(cleanup_system_call_insn+8)
+	jh	0f
+	l	%r10,__LC_EXIT_TIMER
+	l	%r15,__LC_EXIT_TIMER+4
+	SUB64	%r10,%r15,__LC_SYNC_ENTER_TIMER
+	ADD64	%r10,%r15,__LC_USER_TIMER
+	st	%r10,__LC_USER_TIMER
+	st	%r15,__LC_USER_TIMER+4
+0:	# check if the system time calculation has been done
+	cl	%r9,BASED(cleanup_system_call_insn+12)
+	jh	0f
+	l	%r10,__LC_LAST_UPDATE_TIMER
+	l	%r15,__LC_LAST_UPDATE_TIMER+4
+	SUB64	%r10,%r15,__LC_EXIT_TIMER
+	ADD64	%r10,%r15,__LC_SYSTEM_TIMER
+	st	%r10,__LC_SYSTEM_TIMER
+	st	%r15,__LC_SYSTEM_TIMER+4
+0:	# update accounting time stamp
 	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
-	mvc	__LC_RETURN_PSW+4(4),BASED(cleanup_table_system_call+4)
-	la	%r12,__LC_RETURN_PSW
+	# set up saved register 11
+	l	%r15,__LC_KERNEL_STACK
+	ahi	%r15,-__PT_SIZE
+	st	%r15,12(%r11)		# r11 pt_regs pointer
+	# fill pt_regs
+	mvc	__PT_R8(32,%r15),__LC_SAVE_AREA_SYNC
+	stm	%r0,%r7,__PT_R0(%r15)
+	mvc	__PT_PSW(8,%r15),__LC_SVC_OLD_PSW
+	mvc	__PT_INT_CODE(4,%r15),__LC_SVC_ILC
+	# setup saved register 15
+	ahi	%r15,-STACK_FRAME_OVERHEAD
+	st	%r15,28(%r11)		# r15 stack pointer
+	# set new psw address and exit
+	l	%r9,BASED(cleanup_table+4)	# sysc_do_svc + 0x80000000
 	br	%r14
 cleanup_system_call_insn:
-	.long	sysc_saveall + 0x80000000
 	.long	system_call + 0x80000000
-	.long	sysc_vtime + 0x80000000
-	.long	sysc_stime + 0x80000000
-	.long	sysc_update + 0x80000000
+	.long	sysc_stm + 0x80000000
+	.long	sysc_vtime + 0x80000000 + 36
+	.long	sysc_vtime + 0x80000000 + 76
 
 cleanup_sysc_tif:
-	mvc	__LC_RETURN_PSW(4),0(%r12)
-	mvc	__LC_RETURN_PSW+4(4),BASED(cleanup_table_sysc_tif)
-	la	%r12,__LC_RETURN_PSW
+	l	%r9,BASED(cleanup_table+8)	# sysc_tif + 0x80000000
 	br	%r14
 
 cleanup_sysc_restore:
-	clc	4(4,%r12),BASED(cleanup_sysc_restore_insn)
-	be	BASED(2f)
-	mvc	__LC_EXIT_TIMER(8),__LC_MCCK_ENTER_TIMER
-	c	%r12,BASED(.Lmck_old_psw)
-	be	BASED(0f)
-	mvc	__LC_EXIT_TIMER(8),__LC_ASYNC_ENTER_TIMER
-0:	clc	4(4,%r12),BASED(cleanup_sysc_restore_insn+4)
-	be	BASED(2f)
-	mvc	__LC_RETURN_PSW(8),SP_PSW(%r15)
-	c	%r12,BASED(.Lmck_old_psw)
-	la	%r12,__LC_SAVE_AREA+32
-	be	BASED(1f)
-	la	%r12,__LC_SAVE_AREA+16
-1:	mvc	0(16,%r12),SP_R12(%r15)
-	lm	%r0,%r11,SP_R0(%r15)
-	l	%r15,SP_R15(%r15)
-2:	la	%r12,__LC_RETURN_PSW
+	cl	%r9,BASED(cleanup_sysc_restore_insn)
+	jhe	0f
+	l	%r9,12(%r11)		# get saved pointer to pt_regs
+	mvc	__LC_RETURN_PSW(8),__PT_PSW(%r9)
+	mvc	0(32,%r11),__PT_R8(%r9)
+	lm	%r0,%r7,__PT_R0(%r9)
+0:	lm	%r8,%r9,__LC_RETURN_PSW
 	br	%r14
 cleanup_sysc_restore_insn:
 	.long	sysc_done - 4 + 0x80000000
-	.long	sysc_done - 8 + 0x80000000
 
 cleanup_io_tif:
-	mvc	__LC_RETURN_PSW(4),0(%r12)
-	mvc	__LC_RETURN_PSW+4(4),BASED(cleanup_table_io_tif)
-	la	%r12,__LC_RETURN_PSW
+	l	%r9,BASED(cleanup_table+20)	# io_tif + 0x80000000
 	br	%r14
 
 cleanup_io_restore:
-	clc	4(4,%r12),BASED(cleanup_io_restore_insn)
-	be	BASED(1f)
-	mvc	__LC_EXIT_TIMER(8),__LC_MCCK_ENTER_TIMER
-	clc	4(4,%r12),BASED(cleanup_io_restore_insn+4)
-	be	BASED(1f)
-	mvc	__LC_RETURN_PSW(8),SP_PSW(%r15)
-	mvc	__LC_SAVE_AREA+32(16),SP_R12(%r15)
-	lm	%r0,%r11,SP_R0(%r15)
-	l	%r15,SP_R15(%r15)
-1:	la	%r12,__LC_RETURN_PSW
+	cl	%r9,BASED(cleanup_io_restore_insn)
+	jhe	0f
+	l	%r9,12(%r11)		# get saved r11 pointer to pt_regs
+	mvc	__LC_RETURN_PSW(8),__PT_PSW(%r9)
+	ni	__LC_RETURN_PSW+1,0xfd	# clear wait state bit
+	mvc	0(32,%r11),__PT_R8(%r9)
+	lm	%r0,%r7,__PT_R0(%r9)
+0:	lm	%r8,%r9,__LC_RETURN_PSW
 	br	%r14
 cleanup_io_restore_insn:
 	.long	io_done - 4 + 0x80000000
-	.long	io_done - 8 + 0x80000000
 
 /*
  * Integer constants
  */
-		.align	4
-.Lc_spsize:	.long	SP_SIZE
-.Lc_overhead:	.long	STACK_FRAME_OVERHEAD
-.Lnr_syscalls:	.long	NR_syscalls
-.L0x018:	.short	0x018
-.L0x020:	.short	0x020
-.L0x028:	.short	0x028
-.L0x030:	.short	0x030
-.L0x038:	.short	0x038
-.Lc_1:		.long	1
+	.align	4
+.Lnr_syscalls:		.long	NR_syscalls
 
 /*
  * Symbol constants
  */
-.Ls390_mcck:	.long	s390_do_machine_check
-.Ls390_handle_mcck:
-		.long	s390_handle_mcck
-.Lmck_old_psw:	.long	__LC_MCK_OLD_PSW
-.Ldo_IRQ:	.long	do_IRQ
-.Ldo_extint:	.long	do_extint
-.Ldo_signal:	.long	do_signal
-.Ldo_notify_resume:
-		.long	do_notify_resume
-.Lhandle_per:	.long	do_per_trap
-.Ldo_execve:	.long	do_execve
-.Lexecve_tail:	.long	execve_tail
-.Ljump_table:	.long	pgm_check_table
-.Lschedule:	.long	schedule
+.Ldo_machine_check:	.long	s390_do_machine_check
+.Lhandle_mcck:		.long	s390_handle_mcck
+.Ldo_IRQ:		.long	do_IRQ
+.Ldo_extint:		.long	do_extint
+.Ldo_signal:		.long	do_signal
+.Ldo_notify_resume:	.long	do_notify_resume
+.Ldo_per_trap:		.long	do_per_trap
+.Ldo_execve:		.long	do_execve
+.Lexecve_tail:		.long	execve_tail
+.Ljump_table:		.long	pgm_check_table
+.Lschedule:		.long	schedule
 #ifdef CONFIG_PREEMPT
-.Lpreempt_schedule_irq:
-		.long	preempt_schedule_irq
+.Lpreempt_irq:		.long	preempt_schedule_irq
 #endif
-.Ltrace_entry:	.long	do_syscall_trace_enter
-.Ltrace_exit:	.long	do_syscall_trace_exit
-.Lschedtail:	.long	schedule_tail
-.Lsysc_table:	.long	sys_call_table
+.Ltrace_enter:		.long	do_syscall_trace_enter
+.Ltrace_exit:		.long	do_syscall_trace_exit
+.Lschedule_tail:	.long	schedule_tail
+.Lsys_call_table:	.long	sys_call_table
+.Lsysc_per:		.long	sysc_per + 0x80000000
 #ifdef CONFIG_TRACE_IRQFLAGS
-.Ltrace_irq_on_caller:
-		.long	trace_hardirqs_on_caller
-.Ltrace_irq_off_caller:
-		.long	trace_hardirqs_off_caller
+.Lhardirqs_on:		.long	trace_hardirqs_on_caller
+.Lhardirqs_off:		.long	trace_hardirqs_off_caller
 #endif
 #ifdef CONFIG_LOCKDEP
-.Llockdep_sys_exit:
-		.long	lockdep_sys_exit
+.Llockdep_sys_exit:	.long	lockdep_sys_exit
 #endif
-.Lcritical_start:
-		.long	__critical_start + 0x80000000
-.Lcritical_end:
-		.long	__critical_end + 0x80000000
-.Lcleanup_critical:
-		.long	cleanup_critical
+.Lcritical_start:	.long	__critical_start + 0x80000000
+.Lcritical_length:	.long	__critical_end - __critical_start
 
 		.section .rodata, "a"
 #define SYSCALL(esa,esame,emu)	.long esa
diff --git a/arch/s390/kernel/entry.h b/arch/s390/kernel/entry.h
index ef8fb1d6e8d7..bf538aaf407d 100644
--- a/arch/s390/kernel/entry.h
+++ b/arch/s390/kernel/entry.h
@@ -6,15 +6,15 @@
 #include <asm/ptrace.h>
 
 
-extern void (*pgm_check_table[128])(struct pt_regs *, long, unsigned long);
+extern void (*pgm_check_table[128])(struct pt_regs *);
 extern void *restart_stack;
 
 asmlinkage long do_syscall_trace_enter(struct pt_regs *regs);
 asmlinkage void do_syscall_trace_exit(struct pt_regs *regs);
 
-void do_protection_exception(struct pt_regs *, long, unsigned long);
-void do_dat_exception(struct pt_regs *, long, unsigned long);
-void do_asce_exception(struct pt_regs *, long, unsigned long);
+void do_protection_exception(struct pt_regs *regs);
+void do_dat_exception(struct pt_regs *regs);
+void do_asce_exception(struct pt_regs *regs);
 
 void do_per_trap(struct pt_regs *regs);
 void syscall_trace(struct pt_regs *regs, int entryexit);
@@ -28,7 +28,7 @@ void do_extint(struct pt_regs *regs, unsigned int, unsigned int, unsigned long);
 void do_restart(void);
 int __cpuinit start_secondary(void *cpuvoid);
 void __init startup_init(void);
-void die(const char * str, struct pt_regs * regs, long err);
+void die(struct pt_regs *regs, const char *str);
 
 void __init time_init(void);
 
diff --git a/arch/s390/kernel/entry64.S b/arch/s390/kernel/entry64.S
index 83a93747e2fd..412a7b8783d7 100644
--- a/arch/s390/kernel/entry64.S
+++ b/arch/s390/kernel/entry64.S
@@ -19,32 +19,22 @@
 #include <asm/unistd.h>
 #include <asm/page.h>
 
-/*
- * Stack layout for the system_call stack entry.
- * The first few entries are identical to the user_regs_struct.
- */
-SP_PTREGS    =	STACK_FRAME_OVERHEAD
-SP_ARGS      =	STACK_FRAME_OVERHEAD + __PT_ARGS
-SP_PSW	     =	STACK_FRAME_OVERHEAD + __PT_PSW
-SP_R0	     =	STACK_FRAME_OVERHEAD + __PT_GPRS
-SP_R1	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 8
-SP_R2	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 16
-SP_R3	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 24
-SP_R4	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 32
-SP_R5	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 40
-SP_R6	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 48
-SP_R7	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 56
-SP_R8	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 64
-SP_R9	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 72
-SP_R10	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 80
-SP_R11	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 88
-SP_R12	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 96
-SP_R13	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 104
-SP_R14	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 112
-SP_R15	     =	STACK_FRAME_OVERHEAD + __PT_GPRS + 120
-SP_ORIG_R2   =	STACK_FRAME_OVERHEAD + __PT_ORIG_GPR2
-SP_SVC_CODE  =	STACK_FRAME_OVERHEAD + __PT_SVC_CODE
-SP_SIZE      =	STACK_FRAME_OVERHEAD + __PT_SIZE
+__PT_R0      =	__PT_GPRS
+__PT_R1      =	__PT_GPRS + 8
+__PT_R2      =	__PT_GPRS + 16
+__PT_R3      =	__PT_GPRS + 24
+__PT_R4      =	__PT_GPRS + 32
+__PT_R5      =	__PT_GPRS + 40
+__PT_R6      =	__PT_GPRS + 48
+__PT_R7      =	__PT_GPRS + 56
+__PT_R8      =	__PT_GPRS + 64
+__PT_R9      =	__PT_GPRS + 72
+__PT_R10     =	__PT_GPRS + 80
+__PT_R11     =	__PT_GPRS + 88
+__PT_R12     =	__PT_GPRS + 96
+__PT_R13     =	__PT_GPRS + 104
+__PT_R14     =	__PT_GPRS + 112
+__PT_R15     =	__PT_GPRS + 120
 
 STACK_SHIFT = PAGE_SHIFT + THREAD_ORDER
 STACK_SIZE  = 1 << STACK_SHIFT
@@ -59,154 +49,103 @@ _TIF_EXIT_SIE = (_TIF_SIGPENDING | _TIF_NEED_RESCHED | _TIF_MCCK_PENDING)
 
 #define BASED(name) name-system_call(%r13)
 
-	.macro SPP newpp
-#if defined(CONFIG_KVM) || defined(CONFIG_KVM_MODULE)
-	tm	__LC_MACHINE_FLAGS+6,0x20	# MACHINE_FLAG_SPP
-	jz	.+8
-	.insn	s,0xb2800000,\newpp
-#endif
-	.endm
-
-	.macro	HANDLE_SIE_INTERCEPT
-#if defined(CONFIG_KVM) || defined(CONFIG_KVM_MODULE)
-	tm	__TI_flags+6(%r12),_TIF_SIE>>8
-	jz	0f
-	SPP	__LC_CMF_HPP			# set host id
-	clc	SP_PSW+8(8,%r15),BASED(.Lsie_loop)
-	jl	0f
-	clc	SP_PSW+8(8,%r15),BASED(.Lsie_done)
-	jhe	0f
-	mvc	SP_PSW+8(8,%r15),BASED(.Lsie_loop)
-0:
-#endif
-	.endm
-
-#ifdef CONFIG_TRACE_IRQFLAGS
 	.macro	TRACE_IRQS_ON
+#ifdef CONFIG_TRACE_IRQFLAGS
 	basr	%r2,%r0
 	brasl	%r14,trace_hardirqs_on_caller
+#endif
 	.endm
 
 	.macro	TRACE_IRQS_OFF
+#ifdef CONFIG_TRACE_IRQFLAGS
 	basr	%r2,%r0
 	brasl	%r14,trace_hardirqs_off_caller
-	.endm
-#else
-#define TRACE_IRQS_ON
-#define TRACE_IRQS_OFF
 #endif
+	.endm
 
-#ifdef CONFIG_LOCKDEP
 	.macro	LOCKDEP_SYS_EXIT
-	tm	SP_PSW+1(%r15),0x01	# returning to user ?
-	jz	0f
+#ifdef CONFIG_LOCKDEP
+	tm	__PT_PSW+1(%r11),0x01	# returning to user ?
+	jz	.+10
 	brasl	%r14,lockdep_sys_exit
-0:
-	.endm
-#else
-#define LOCKDEP_SYS_EXIT
 #endif
-
-	.macro	UPDATE_VTIME lc_from,lc_to,lc_sum
-	lg	%r10,\lc_from
-	slg	%r10,\lc_to
-	alg	%r10,\lc_sum
-	stg	%r10,\lc_sum
 	.endm
 
-/*
- * Register usage in interrupt handlers:
- *    R9  - pointer to current task structure
- *    R13 - pointer to literal pool
- *    R14 - return register for function calls
- *    R15 - kernel stack pointer
- */
+	.macro SPP newpp
+#if defined(CONFIG_KVM) || defined(CONFIG_KVM_MODULE)
+	tm	__LC_MACHINE_FLAGS+6,0x20	# MACHINE_FLAG_SPP
+	jz	.+8
+	.insn	s,0xb2800000,\newpp
+#endif
+	.endm
 
-	.macro	SAVE_ALL_SVC psworg,savearea
-	stmg	%r11,%r15,\savearea
-	lg	%r15,__LC_KERNEL_STACK	# problem state -> load ksp
-	aghi	%r15,-SP_SIZE		# make room for registers & psw
-	lg	%r11,__LC_LAST_BREAK
+	.macro	HANDLE_SIE_INTERCEPT scratch
+#if defined(CONFIG_KVM) || defined(CONFIG_KVM_MODULE)
+	tm	__TI_flags+6(%r12),_TIF_SIE>>8
+	jz	.+42
+	tm	__LC_MACHINE_FLAGS+6,0x20	# MACHINE_FLAG_SPP
+	jz	.+8
+	.insn	s,0xb2800000,BASED(.Lhost_id)	# set host id
+	lgr	\scratch,%r9
+	slg	\scratch,BASED(.Lsie_loop)
+	clg	\scratch,BASED(.Lsie_length)
+	jhe	.+10
+	lg	%r9,BASED(.Lsie_loop)
+#endif
 	.endm
 
-	.macro	SAVE_ALL_PGM psworg,savearea
-	stmg	%r11,%r15,\savearea
-	tm	\psworg+1,0x01		# test problem state bit
+	.macro	CHECK_STACK stacksize,savearea
 #ifdef CONFIG_CHECK_STACK
-	jnz	1f
-	tml	%r15,STACK_SIZE - CONFIG_STACK_GUARD
-	jnz	2f
-	la	%r12,\psworg
-	j	stack_overflow
-#else
-	jz	2f
+	tml	%r15,\stacksize - CONFIG_STACK_GUARD
+	lghi	%r14,\savearea
+	jz	stack_overflow
 #endif
-1:	lg	%r15,__LC_KERNEL_STACK	# problem state -> load ksp
-2:	aghi	%r15,-SP_SIZE		# make room for registers & psw
-	larl	%r13,system_call
-	lg	%r11,__LC_LAST_BREAK
 	.endm
 
-	.macro	SAVE_ALL_ASYNC psworg,savearea
-	stmg	%r11,%r15,\savearea
-	larl	%r13,system_call
-	lg	%r11,__LC_LAST_BREAK
-	la	%r12,\psworg
-	tm	\psworg+1,0x01		# test problem state bit
-	jnz	1f			# from user -> load kernel stack
-	clc	\psworg+8(8),BASED(.Lcritical_end)
+	.macro	SWITCH_ASYNC savearea,stack,shift
+	tmhh	%r8,0x0001		# interrupting from user ?
+	jnz	1f
+	lgr	%r14,%r9
+	slg	%r14,BASED(.Lcritical_start)
+	clg	%r14,BASED(.Lcritical_length)
 	jhe	0f
-	clc	\psworg+8(8),BASED(.Lcritical_start)
-	jl	0f
+	lghi	%r11,\savearea		# inside critical section, do cleanup
 	brasl	%r14,cleanup_critical
-	tm	1(%r12),0x01		# retest problem state after cleanup
+	tmhh	%r8,0x0001		# retest problem state after cleanup
 	jnz	1f
-0:	lg	%r14,__LC_ASYNC_STACK	# are we already on the async. stack ?
+0:	lg	%r14,\stack		# are we already on the target stack?
 	slgr	%r14,%r15
-	srag	%r14,%r14,STACK_SHIFT
-#ifdef CONFIG_CHECK_STACK
+	srag	%r14,%r14,\shift
 	jnz	1f
-	tml	%r15,STACK_SIZE - CONFIG_STACK_GUARD
-	jnz	2f
-	j	stack_overflow
-#else
-	jz	2f
-#endif
-1:	lg	%r15,__LC_ASYNC_STACK	# load async stack
-2:	aghi	%r15,-SP_SIZE		# make room for registers & psw
-	.endm
-
-	.macro	CREATE_STACK_FRAME savearea
-	xc	__SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15)
-	stg	%r2,SP_ORIG_R2(%r15)	# store original content of gpr 2
-	mvc	SP_R11(40,%r15),\savearea # move %r11-%r15 to stack
-	stmg	%r0,%r10,SP_R0(%r15)	# store gprs %r0-%r10 to kernel stack
+	CHECK_STACK 1<<\shift,\savearea
+	j	2f
+1:	lg	%r15,\stack		# load target stack
+2:	aghi	%r15,-(STACK_FRAME_OVERHEAD + __PT_SIZE)
+	la	%r11,STACK_FRAME_OVERHEAD(%r15)
 	.endm
 
-	.macro	RESTORE_ALL psworg,sync
-	mvc	\psworg(16),SP_PSW(%r15) # move user PSW to lowcore
-	.if !\sync
-	ni	\psworg+1,0xfd		# clear wait state bit
-	.endif
-	lg	%r14,__LC_VDSO_PER_CPU
-	lmg	%r0,%r13,SP_R0(%r15)	# load gprs 0-13 of user
-	stpt	__LC_EXIT_TIMER
-	mvc	__VDSO_ECTG_BASE(16,%r14),__LC_EXIT_TIMER
-	lmg	%r14,%r15,SP_R14(%r15)	# load grps 14-15 of user
-	lpswe	\psworg			# back to caller
+	.macro UPDATE_VTIME scratch,enter_timer
+	lg	\scratch,__LC_EXIT_TIMER
+	slg	\scratch,\enter_timer
+	alg	\scratch,__LC_USER_TIMER
+	stg	\scratch,__LC_USER_TIMER
+	lg	\scratch,__LC_LAST_UPDATE_TIMER
+	slg	\scratch,__LC_EXIT_TIMER
+	alg	\scratch,__LC_SYSTEM_TIMER
+	stg	\scratch,__LC_SYSTEM_TIMER
+	mvc	__LC_LAST_UPDATE_TIMER(8),\enter_timer
 	.endm
 
-	.macro	LAST_BREAK
-	srag	%r10,%r11,23
-	jz	0f
-	stg	%r11,__TI_last_break(%r12)
-0:
+	.macro	LAST_BREAK scratch
+	srag	\scratch,%r10,23
+	jz	.+10
+	stg	%r10,__TI_last_break(%r12)
 	.endm
 
 	.macro REENABLE_IRQS
-	mvc	__SF_EMPTY(1,%r15),SP_PSW(%r15)
-	ni	__SF_EMPTY(%r15),0xbf
-	ssm	__SF_EMPTY(%r15)
+	stg	%r8,__LC_RETURN_PSW
+	ni	__LC_RETURN_PSW,0xbf
+	ssm	__LC_RETURN_PSW
 	.endm
 
 	.section .kprobes.text, "ax"
@@ -245,55 +184,66 @@ __critical_start:
 
 ENTRY(system_call)
 	stpt	__LC_SYNC_ENTER_TIMER
-sysc_saveall:
-	SAVE_ALL_SVC __LC_SVC_OLD_PSW,__LC_SAVE_AREA
-	CREATE_STACK_FRAME __LC_SAVE_AREA
-	lg	%r12,__LC_THREAD_INFO	# load pointer to thread_info struct
-	mvc	SP_PSW(16,%r15),__LC_SVC_OLD_PSW
-	mvc	SP_SVC_CODE(4,%r15),__LC_SVC_ILC
-	oi	__TI_flags+7(%r12),_TIF_SYSCALL
+sysc_stmg:
+	stmg	%r8,%r15,__LC_SAVE_AREA_SYNC
+	lg	%r10,__LC_LAST_BREAK
+	lg	%r12,__LC_THREAD_INFO
+	larl	%r13,system_call
+sysc_per:
+	lg	%r15,__LC_KERNEL_STACK
+	aghi	%r15,-(STACK_FRAME_OVERHEAD + __PT_SIZE)
+	la	%r11,STACK_FRAME_OVERHEAD(%r15)	# pointer to pt_regs
 sysc_vtime:
-	UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER
-sysc_stime:
-	UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
-sysc_update:
-	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
-	LAST_BREAK
+	UPDATE_VTIME %r13,__LC_SYNC_ENTER_TIMER
+	LAST_BREAK %r13
+	stmg	%r0,%r7,__PT_R0(%r11)
+	mvc	__PT_R8(64,%r11),__LC_SAVE_AREA_SYNC
+	mvc	__PT_PSW(16,%r11),__LC_SVC_OLD_PSW
+	mvc	__PT_INT_CODE(4,%r11),__LC_SVC_ILC
 sysc_do_svc:
-	llgh	%r7,SP_SVC_CODE+2(%r15)
-	slag	%r7,%r7,2	# shift and test for svc 0
+	oi	__TI_flags+7(%r12),_TIF_SYSCALL
+	llgh	%r8,__PT_INT_CODE+2(%r11)
+	slag	%r8,%r8,2			# shift and test for svc 0
 	jnz	sysc_nr_ok
 	# svc 0: system call number in %r1
-	llgfr	%r1,%r1		# clear high word in r1
+	llgfr	%r1,%r1				# clear high word in r1
 	cghi	%r1,NR_syscalls
 	jnl	sysc_nr_ok
-	sth	%r1,SP_SVC_CODE+2(%r15)
-	slag	%r7,%r1,2	# shift and test for svc 0
+	sth	%r1,__PT_INT_CODE+2(%r11)
+	slag	%r8,%r1,2
 sysc_nr_ok:
-	larl	%r10,sys_call_table
+	larl	%r10,sys_call_table		# 64 bit system call table
 #ifdef CONFIG_COMPAT
-	tm	__TI_flags+5(%r12),(_TIF_31BIT>>16)  # running in 31 bit mode ?
+	tm	__TI_flags+5(%r12),(_TIF_31BIT>>16)
 	jno	sysc_noemu
-	larl	%r10,sys_call_table_emu  # use 31 bit emulation system calls
+	larl	%r10,sys_call_table_emu		# 31 bit system call table
 sysc_noemu:
 #endif
+	xc	__SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15)
+	stg	%r2,__PT_ORIG_GPR2(%r11)
+	stg	%r7,STACK_FRAME_OVERHEAD(%r15)
+	lgf	%r9,0(%r8,%r10)			# get system call add.
 	tm	__TI_flags+6(%r12),_TIF_TRACE >> 8
-	mvc	SP_ARGS(8,%r15),SP_R7(%r15)
-	lgf	%r8,0(%r7,%r10) # load address of system call routine
 	jnz	sysc_tracesys
-	basr	%r14,%r8	# call sys_xxxx
-	stg	%r2,SP_R2(%r15) # store return value (change R2 on stack)
+	basr	%r14,%r9			# call sys_xxxx
+	stg	%r2,__PT_R2(%r11)		# store return value
 
 sysc_return:
 	LOCKDEP_SYS_EXIT
 sysc_tif:
-	tm	SP_PSW+1(%r15),0x01	# returning to user ?
+	tm	__PT_PSW+1(%r11),0x01		# returning to user ?
 	jno	sysc_restore
 	tm	__TI_flags+7(%r12),_TIF_WORK_SVC
-	jnz	sysc_work	# there is work to do (signals etc.)
+	jnz	sysc_work			# check for work
 	ni	__TI_flags+7(%r12),255-_TIF_SYSCALL
 sysc_restore:
-	RESTORE_ALL __LC_RETURN_PSW,1
+	lg	%r14,__LC_VDSO_PER_CPU
+	lmg	%r0,%r10,__PT_R0(%r11)
+	mvc	__LC_RETURN_PSW(16),__PT_PSW(%r11)
+	stpt	__LC_EXIT_TIMER
+	mvc	__VDSO_ECTG_BASE(16,%r14),__LC_EXIT_TIMER
+	lmg	%r11,%r15,__PT_R11(%r11)
+	lpswe	__LC_RETURN_PSW
 sysc_done:
 
 #
@@ -317,7 +267,7 @@ sysc_work:
 #
 sysc_reschedule:
 	larl	%r14,sysc_return
-	jg	schedule		# return point is sysc_return
+	jg	schedule
 
 #
 # _TIF_MCCK_PENDING is set, call handler
@@ -331,33 +281,33 @@ sysc_mcck_pending:
 #
 sysc_sigpending:
 	ni	__TI_flags+7(%r12),255-_TIF_PER_TRAP # clear TIF_PER_TRAP
-	la	%r2,SP_PTREGS(%r15)	# load pt_regs
-	brasl	%r14,do_signal		# call do_signal
+	lgr	%r2,%r11		# pass pointer to pt_regs
+	brasl	%r14,do_signal
 	tm	__TI_flags+7(%r12),_TIF_SYSCALL
 	jno	sysc_return
-	lmg	%r2,%r6,SP_R2(%r15)	# load svc arguments
-	lghi	%r7,0			# svc 0 returns -ENOSYS
-	lh	%r1,SP_SVC_CODE+2(%r15)	# load new svc number
+	lmg	%r2,%r7,__PT_R2(%r11)	# load svc arguments
+	lghi	%r8,0			# svc 0 returns -ENOSYS
+	lh	%r1,__PT_INT_CODE+2(%r11)	# load new svc number
 	cghi	%r1,NR_syscalls
 	jnl	sysc_nr_ok		# invalid svc number -> do svc 0
-	slag	%r7,%r1,2
+	slag	%r8,%r1,2
 	j	sysc_nr_ok		# restart svc
 
 #
 # _TIF_NOTIFY_RESUME is set, call do_notify_resume
 #
 sysc_notify_resume:
-	la	%r2,SP_PTREGS(%r15)	# load pt_regs
+	lgr	%r2,%r11		# pass pointer to pt_regs
 	larl	%r14,sysc_return
-	jg	do_notify_resume	# call do_notify_resume
+	jg	do_notify_resume
 
 #
 # _TIF_PER_TRAP is set, call do_per_trap
 #
 sysc_singlestep:
 	ni	__TI_flags+7(%r12),255-(_TIF_SYSCALL | _TIF_PER_TRAP)
-	la	%r2,SP_PTREGS(%r15)	# address of register-save area
-	larl	%r14,sysc_return	# load adr. of system return
+	lgr	%r2,%r11		# pass pointer to pt_regs
+	larl	%r14,sysc_return
 	jg	do_per_trap
 
 #
@@ -365,41 +315,41 @@ sysc_singlestep:
 # and after the system call
 #
 sysc_tracesys:
-	la	%r2,SP_PTREGS(%r15)	# load pt_regs
+	lgr	%r2,%r11		# pass pointer to pt_regs
 	la	%r3,0
-	llgh	%r0,SP_SVC_CODE+2(%r15)
-	stg	%r0,SP_R2(%r15)
+	llgh	%r0,__PT_INT_CODE+2(%r11)
+	stg	%r0,__PT_R2(%r11)
 	brasl	%r14,do_syscall_trace_enter
 	lghi	%r0,NR_syscalls
 	clgr	%r0,%r2
 	jnh	sysc_tracenogo
-	sllg	%r7,%r2,2		# svc number *4
-	lgf	%r8,0(%r7,%r10)
+	sllg	%r8,%r2,2
+	lgf	%r9,0(%r8,%r10)
 sysc_tracego:
-	lmg	%r3,%r6,SP_R3(%r15)
-	mvc	SP_ARGS(8,%r15),SP_R7(%r15)
-	lg	%r2,SP_ORIG_R2(%r15)
-	basr	%r14,%r8		# call sys_xxx
-	stg	%r2,SP_R2(%r15)		# store return value
+	lmg	%r3,%r7,__PT_R3(%r11)
+	stg	%r7,STACK_FRAME_OVERHEAD(%r15)
+	lg	%r2,__PT_ORIG_GPR2(%r11)
+	basr	%r14,%r9		# call sys_xxx
+	stg	%r2,__PT_R2(%r11)	# store return value
 sysc_tracenogo:
 	tm	__TI_flags+6(%r12),_TIF_TRACE >> 8
 	jz	sysc_return
-	la	%r2,SP_PTREGS(%r15)	# load pt_regs
-	larl	%r14,sysc_return	# return point is sysc_return
+	lgr	%r2,%r11		# pass pointer to pt_regs
+	larl	%r14,sysc_return
 	jg	do_syscall_trace_exit
 
 #
 # a new process exits the kernel with ret_from_fork
 #
 ENTRY(ret_from_fork)
-	lg	%r13,__LC_SVC_NEW_PSW+8
-	lg	%r12,__LC_THREAD_INFO	# load pointer to thread_info struct
-	tm	SP_PSW+1(%r15),0x01	# forking a kernel thread ?
+	la	%r11,STACK_FRAME_OVERHEAD(%r15)
+	lg	%r12,__LC_THREAD_INFO
+	tm	__PT_PSW+1(%r11),0x01	# forking a kernel thread ?
 	jo	0f
-	stg	%r15,SP_R15(%r15)	# store stack pointer for new kthread
+	stg	%r15,__PT_R15(%r11)	# store stack pointer for new kthread
 0:	brasl	%r14,schedule_tail
 	TRACE_IRQS_ON
-	stosm	24(%r15),0x03		# reenable interrupts
+	ssm	__LC_SVC_NEW_PSW	# reenable interrupts
 	j	sysc_tracenogo
 
 #
@@ -409,26 +359,26 @@ ENTRY(ret_from_fork)
 ENTRY(kernel_execve)
 	stmg	%r12,%r15,96(%r15)
 	lgr	%r14,%r15
-	aghi	%r15,-SP_SIZE
+	aghi	%r15,-(STACK_FRAME_OVERHEAD + __PT_SIZE)
 	stg	%r14,__SF_BACKCHAIN(%r15)
-	la	%r12,SP_PTREGS(%r15)
+	la	%r12,STACK_FRAME_OVERHEAD(%r15)
 	xc	0(__PT_SIZE,%r12),0(%r12)
 	lgr	%r5,%r12
 	brasl	%r14,do_execve
 	ltgfr	%r2,%r2
 	je	0f
-	aghi	%r15,SP_SIZE
+	aghi	%r15,(STACK_FRAME_OVERHEAD + __PT_SIZE)
 	lmg	%r12,%r15,96(%r15)
 	br	%r14
 	# execve succeeded.
-0:	stnsm	__SF_EMPTY(%r15),0xfc	# disable interrupts
+0:	ssm	__LC_PGM_NEW_PSW	# disable I/O and ext. interrupts
 	lg	%r15,__LC_KERNEL_STACK	# load ksp
-	aghi	%r15,-SP_SIZE		# make room for registers & psw
-	lg	%r13,__LC_SVC_NEW_PSW+8
-	mvc	SP_PTREGS(__PT_SIZE,%r15),0(%r12)	# copy pt_regs
+	aghi	%r15,-(STACK_FRAME_OVERHEAD + __PT_SIZE)
+	la	%r11,STACK_FRAME_OVERHEAD(%r15)
+	mvc	0(__PT_SIZE,%r11),0(%r12)	# copy pt_regs
 	lg	%r12,__LC_THREAD_INFO
 	xc	__SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15)
-	stosm	__SF_EMPTY(%r15),0x03	# reenable interrupts
+	ssm	__LC_SVC_NEW_PSW	# reenable interrupts
 	brasl	%r14,execve_tail
 	j	sysc_return
 
@@ -437,127 +387,72 @@ ENTRY(kernel_execve)
  */
 
 ENTRY(pgm_check_handler)
-/*
- * First we need to check for a special case:
- * Single stepping an instruction that disables the PER event mask will
- * cause a PER event AFTER the mask has been set. Example: SVC or LPSW.
- * For a single stepped SVC the program check handler gets control after
- * the SVC new PSW has been loaded. But we want to execute the SVC first and
- * then handle the PER event. Therefore we update the SVC old PSW to point
- * to the pgm_check_handler and branch to the SVC handler after we checked
- * if we have to load the kernel stack register.
- * For every other possible cause for PER event without the PER mask set
- * we just ignore the PER event (FIXME: is there anything we have to do
- * for LPSW?).
- */
 	stpt	__LC_SYNC_ENTER_TIMER
-	tm	__LC_PGM_INT_CODE+1,0x80 # check whether we got a per exception
-	jnz	pgm_per 		 # got per exception -> special case
-	SAVE_ALL_PGM __LC_PGM_OLD_PSW,__LC_SAVE_AREA
-	CREATE_STACK_FRAME __LC_SAVE_AREA
-	mvc	SP_PSW(16,%r15),__LC_PGM_OLD_PSW
-	lg	%r12,__LC_THREAD_INFO	# load pointer to thread_info struct
-	HANDLE_SIE_INTERCEPT
-	tm	SP_PSW+1(%r15),0x01	# interrupting from user ?
-	jz	pgm_no_vtime
-	UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER
-	UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
-	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
-	LAST_BREAK
-pgm_no_vtime:
-	stg	%r11,SP_ARGS(%r15)
-	lgf	%r3,__LC_PGM_ILC	# load program interruption code
-	lg	%r4,__LC_TRANS_EXC_CODE
-	REENABLE_IRQS
-	lghi	%r8,0x7f
-	ngr	%r8,%r3
-	sll	%r8,3
-	larl	%r1,pgm_check_table
-	lg	%r1,0(%r8,%r1)		# load address of handler routine
-	la	%r2,SP_PTREGS(%r15)	# address of register-save area
-	basr	%r14,%r1		# branch to interrupt-handler
-pgm_exit:
-	j	sysc_return
-
-#
-# handle per exception
-#
-pgm_per:
-	tm	__LC_PGM_OLD_PSW,0x40	# test if per event recording is on
-	jnz	pgm_per_std		# ok, normal per event from user space
-# ok its one of the special cases, now we need to find out which one
-	clc	__LC_PGM_OLD_PSW(16),__LC_SVC_NEW_PSW
-	je	pgm_svcper
-# no interesting special case, ignore PER event
-	lpswe	__LC_PGM_OLD_PSW
-
-#
-# Normal per exception
-#
-pgm_per_std:
-	SAVE_ALL_PGM __LC_PGM_OLD_PSW,__LC_SAVE_AREA
-	CREATE_STACK_FRAME __LC_SAVE_AREA
-	mvc	SP_PSW(16,%r15),__LC_PGM_OLD_PSW
-	lg	%r12,__LC_THREAD_INFO	# load pointer to thread_info struct
-	HANDLE_SIE_INTERCEPT
-	tm	SP_PSW+1(%r15),0x01	# interrupting from user ?
-	jz	pgm_no_vtime2
-	UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER
-	UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
-	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
-	LAST_BREAK
-pgm_no_vtime2:
+	stmg	%r8,%r15,__LC_SAVE_AREA_SYNC
+	lg	%r10,__LC_LAST_BREAK
+	lg	%r12,__LC_THREAD_INFO
+	larl	%r13,system_call
+	lmg	%r8,%r9,__LC_PGM_OLD_PSW
+	HANDLE_SIE_INTERCEPT %r14
+	tmhh	%r8,0x0001		# test problem state bit
+	jnz	1f			# -> fault in user space
+	tmhh	%r8,0x4000		# PER bit set in old PSW ?
+	jnz	0f			# -> enabled, can't be a double fault
+	tm	__LC_PGM_ILC+3,0x80	# check for per exception
+	jnz	pgm_svcper		# -> single stepped svc
+0:	CHECK_STACK STACK_SIZE,__LC_SAVE_AREA_SYNC
+	j	2f
+1:	UPDATE_VTIME %r14,__LC_SYNC_ENTER_TIMER
+	LAST_BREAK %r14
+	lg	%r15,__LC_KERNEL_STACK
+2:	aghi	%r15,-(STACK_FRAME_OVERHEAD + __PT_SIZE)
+	la	%r11,STACK_FRAME_OVERHEAD(%r15)
+	stmg	%r0,%r7,__PT_R0(%r11)
+	mvc	__PT_R8(64,%r11),__LC_SAVE_AREA_SYNC
+	stmg	%r8,%r9,__PT_PSW(%r11)
+	mvc	__PT_INT_CODE(4,%r11),__LC_PGM_ILC
+	mvc	__PT_INT_PARM_LONG(8,%r11),__LC_TRANS_EXC_CODE
+	stg	%r10,__PT_ARGS(%r11)
+	tm	__LC_PGM_ILC+3,0x80	# check for per exception
+	jz	0f
 	lg	%r1,__TI_task(%r12)
-	tm	SP_PSW+1(%r15),0x01	# kernel per event ?
-	jz	kernel_per
-	mvc	__THREAD_per_cause(2,%r1),__LC_PER_CAUSE
+	tmhh	%r8,0x0001		# kernel per event ?
+	jz	pgm_kprobe
+	oi	__TI_flags+7(%r12),_TIF_PER_TRAP
 	mvc	__THREAD_per_address(8,%r1),__LC_PER_ADDRESS
+	mvc	__THREAD_per_cause(2,%r1),__LC_PER_CAUSE
 	mvc	__THREAD_per_paid(1,%r1),__LC_PER_PAID
-	oi	__TI_flags+7(%r12),_TIF_PER_TRAP # set TIF_PER_TRAP
-	lgf	%r3,__LC_PGM_ILC	# load program interruption code
-	lg	%r4,__LC_TRANS_EXC_CODE
-	REENABLE_IRQS
-	lghi	%r8,0x7f
-	ngr	%r8,%r3			# clear per-event-bit and ilc
-	je	pgm_exit2
-	sll	%r8,3
+0:	REENABLE_IRQS
+	xc	__SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15)
 	larl	%r1,pgm_check_table
-	lg	%r1,0(%r8,%r1)		# load address of handler routine
-	la	%r2,SP_PTREGS(%r15)	# address of register-save area
+	llgh	%r10,__PT_INT_CODE+2(%r11)
+	nill	%r10,0x007f
+	sll	%r10,3
+	je	sysc_return
+	lg	%r1,0(%r10,%r1)		# load address of handler routine
+	lgr	%r2,%r11		# pass pointer to pt_regs
 	basr	%r14,%r1		# branch to interrupt-handler
-pgm_exit2:
 	j	sysc_return
 
 #
-# it was a single stepped SVC that is causing all the trouble
+# PER event in supervisor state, must be kprobes
 #
-pgm_svcper:
-	SAVE_ALL_PGM __LC_SVC_OLD_PSW,__LC_SAVE_AREA
-	CREATE_STACK_FRAME __LC_SAVE_AREA
-	lg	%r12,__LC_THREAD_INFO	# load pointer to thread_info struct
-	mvc	SP_PSW(16,%r15),__LC_SVC_OLD_PSW
-	mvc	SP_SVC_CODE(4,%r15),__LC_SVC_ILC
-	oi	__TI_flags+7(%r12),(_TIF_SYSCALL | _TIF_PER_TRAP)
-	UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER
-	UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
-	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
-	LAST_BREAK
-	lg	%r8,__TI_task(%r12)
-	mvc	__THREAD_per_cause(2,%r8),__LC_PER_CAUSE
-	mvc	__THREAD_per_address(8,%r8),__LC_PER_ADDRESS
-	mvc	__THREAD_per_paid(1,%r8),__LC_PER_PAID
-	stosm	__SF_EMPTY(%r15),0x03	# reenable interrupts
-	lmg	%r2,%r6,SP_R2(%r15)	# load svc arguments
-	j	sysc_do_svc
+pgm_kprobe:
+	REENABLE_IRQS
+	xc	__SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15)
+	lgr	%r2,%r11		# pass pointer to pt_regs
+	brasl	%r14,do_per_trap
+	j	sysc_return
 
 #
-# per was called from kernel, must be kprobes
+# single stepped system call
 #
-kernel_per:
-	REENABLE_IRQS
-	la	%r2,SP_PTREGS(%r15)	# address of register-save area
-	brasl	%r14,do_per_trap
-	j	pgm_exit
+pgm_svcper:
+	oi	__TI_flags+7(%r12),_TIF_PER_TRAP
+	mvc	__LC_RETURN_PSW(8),__LC_SVC_NEW_PSW
+	larl	%r14,sysc_per
+	stg	%r14,__LC_RETURN_PSW+8
+	lpswe	__LC_RETURN_PSW		# branch to sysc_per and enable irqs
 
 /*
  * IO interrupt handler routine
@@ -565,21 +460,25 @@ kernel_per:
 ENTRY(io_int_handler)
 	stck	__LC_INT_CLOCK
 	stpt	__LC_ASYNC_ENTER_TIMER
-	SAVE_ALL_ASYNC __LC_IO_OLD_PSW,__LC_SAVE_AREA+40
-	CREATE_STACK_FRAME __LC_SAVE_AREA+40
-	mvc	SP_PSW(16,%r15),0(%r12)	# move user PSW to stack
-	lg	%r12,__LC_THREAD_INFO	# load pointer to thread_info struct
-	HANDLE_SIE_INTERCEPT
-	tm	SP_PSW+1(%r15),0x01	# interrupting from user ?
-	jz	io_no_vtime
-	UPDATE_VTIME __LC_EXIT_TIMER,__LC_ASYNC_ENTER_TIMER,__LC_USER_TIMER
-	UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
-	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_ASYNC_ENTER_TIMER
-	LAST_BREAK
-io_no_vtime:
+	stmg	%r8,%r15,__LC_SAVE_AREA_ASYNC
+	lg	%r10,__LC_LAST_BREAK
+	lg	%r12,__LC_THREAD_INFO
+	larl	%r13,system_call
+	lmg	%r8,%r9,__LC_IO_OLD_PSW
+	HANDLE_SIE_INTERCEPT %r14
+	SWITCH_ASYNC __LC_SAVE_AREA_ASYNC,__LC_ASYNC_STACK,STACK_SHIFT
+	tmhh	%r8,0x0001		# interrupting from user?
+	jz	io_skip
+	UPDATE_VTIME %r14,__LC_ASYNC_ENTER_TIMER
+	LAST_BREAK %r14
+io_skip:
+	stmg	%r0,%r7,__PT_R0(%r11)
+	mvc	__PT_R8(64,%r11),__LC_SAVE_AREA_ASYNC
+	stmg	%r8,%r9,__PT_PSW(%r11)
 	TRACE_IRQS_OFF
-	la	%r2,SP_PTREGS(%r15)	# address of register-save area
-	brasl	%r14,do_IRQ		# call standard irq handler
+	xc	__SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15)
+	lgr	%r2,%r11		# pass pointer to pt_regs
+	brasl	%r14,do_IRQ
 io_return:
 	LOCKDEP_SYS_EXIT
 	TRACE_IRQS_ON
@@ -587,7 +486,14 @@ io_tif:
 	tm	__TI_flags+7(%r12),_TIF_WORK_INT
 	jnz	io_work 		# there is work to do (signals etc.)
 io_restore:
-	RESTORE_ALL __LC_RETURN_PSW,0
+	lg	%r14,__LC_VDSO_PER_CPU
+	lmg	%r0,%r10,__PT_R0(%r11)
+	mvc	__LC_RETURN_PSW(16),__PT_PSW(%r11)
+	ni	__LC_RETURN_PSW+1,0xfd	# clear wait state bit
+	stpt	__LC_EXIT_TIMER
+	mvc	__VDSO_ECTG_BASE(16,%r14),__LC_EXIT_TIMER
+	lmg	%r11,%r15,__PT_R11(%r11)
+	lpswe	__LC_RETURN_PSW
 io_done:
 
 #
@@ -600,7 +506,7 @@ io_done:
 # Before any work can be done, a switch to the kernel stack is required.
 #
 io_work:
-	tm	SP_PSW+1(%r15),0x01	# returning to user ?
+	tm	__PT_PSW+1(%r11),0x01	# returning to user ?
 	jo	io_work_user		# yes -> do resched & signal
 #ifdef CONFIG_PREEMPT
 	# check for preemptive scheduling
@@ -609,10 +515,11 @@ io_work:
 	tm	__TI_flags+7(%r12),_TIF_NEED_RESCHED
 	jno	io_restore
 	# switch to kernel stack
-	lg	%r1,SP_R15(%r15)
-	aghi	%r1,-SP_SIZE
-	mvc	SP_PTREGS(__PT_SIZE,%r1),SP_PTREGS(%r15)
-	xc	__SF_BACKCHAIN(8,%r1),__SF_BACKCHAIN(%r1) # clear back chain
+	lg	%r1,__PT_R15(%r11)
+	aghi	%r1,-(STACK_FRAME_OVERHEAD + __PT_SIZE)
+	mvc	STACK_FRAME_OVERHEAD(__PT_SIZE,%r1),0(%r11)
+	xc	__SF_BACKCHAIN(8,%r1),__SF_BACKCHAIN(%r1)
+	la	%r11,STACK_FRAME_OVERHEAD(%r1)
 	lgr	%r15,%r1
 	# TRACE_IRQS_ON already done at io_return, call
 	# TRACE_IRQS_OFF to keep things symmetrical
@@ -628,9 +535,10 @@ io_work:
 #
 io_work_user:
 	lg	%r1,__LC_KERNEL_STACK
-	aghi	%r1,-SP_SIZE
-	mvc	SP_PTREGS(__PT_SIZE,%r1),SP_PTREGS(%r15)
-	xc	__SF_BACKCHAIN(8,%r1),__SF_BACKCHAIN(%r1) # clear back chain
+	aghi	%r1,-(STACK_FRAME_OVERHEAD + __PT_SIZE)
+	mvc	STACK_FRAME_OVERHEAD(__PT_SIZE,%r1),0(%r11)
+	xc	__SF_BACKCHAIN(8,%r1),__SF_BACKCHAIN(%r1)
+	la	%r11,STACK_FRAME_OVERHEAD(%r1)
 	lgr	%r15,%r1
 
 #
@@ -663,9 +571,9 @@ io_mcck_pending:
 #
 io_reschedule:
 	# TRACE_IRQS_ON already done at io_return
-	stosm	__SF_EMPTY(%r15),0x03	# reenable interrupts
+	ssm	__LC_SVC_NEW_PSW	# reenable interrupts
 	brasl	%r14,schedule		# call scheduler
-	stnsm	__SF_EMPTY(%r15),0xfc	# disable I/O and ext. interrupts
+	ssm	__LC_PGM_NEW_PSW	# disable I/O and ext. interrupts
 	TRACE_IRQS_OFF
 	j	io_return
 
@@ -674,10 +582,10 @@ io_reschedule:
 #
 io_sigpending:
 	# TRACE_IRQS_ON already done at io_return
-	stosm	__SF_EMPTY(%r15),0x03	# reenable interrupts
-	la	%r2,SP_PTREGS(%r15)	# load pt_regs
-	brasl	%r14,do_signal		# call do_signal
-	stnsm	__SF_EMPTY(%r15),0xfc	# disable I/O and ext. interrupts
+	ssm	__LC_SVC_NEW_PSW	# reenable interrupts
+	lgr	%r2,%r11		# pass pointer to pt_regs
+	brasl	%r14,do_signal
+	ssm	__LC_PGM_NEW_PSW	# disable I/O and ext. interrupts
 	TRACE_IRQS_OFF
 	j	io_return
 
@@ -686,10 +594,10 @@ io_sigpending:
 #
 io_notify_resume:
 	# TRACE_IRQS_ON already done at io_return
-	stosm	__SF_EMPTY(%r15),0x03	# reenable interrupts
-	la	%r2,SP_PTREGS(%r15)	# load pt_regs
-	brasl	%r14,do_notify_resume	# call do_notify_resume
-	stnsm	__SF_EMPTY(%r15),0xfc	# disable I/O and ext. interrupts
+	ssm	__LC_SVC_NEW_PSW	# reenable interrupts
+	lgr	%r2,%r11		# pass pointer to pt_regs
+	brasl	%r14,do_notify_resume
+	ssm	__LC_PGM_NEW_PSW	# disable I/O and ext. interrupts
 	TRACE_IRQS_OFF
 	j	io_return
 
@@ -699,21 +607,24 @@ io_notify_resume:
 ENTRY(ext_int_handler)
 	stck	__LC_INT_CLOCK
 	stpt	__LC_ASYNC_ENTER_TIMER
-	SAVE_ALL_ASYNC __LC_EXT_OLD_PSW,__LC_SAVE_AREA+40
-	CREATE_STACK_FRAME __LC_SAVE_AREA+40
-	mvc	SP_PSW(16,%r15),0(%r12)	# move user PSW to stack
-	lg	%r12,__LC_THREAD_INFO	# load pointer to thread_info struct
-	HANDLE_SIE_INTERCEPT
-	tm	SP_PSW+1(%r15),0x01	# interrupting from user ?
-	jz	ext_no_vtime
-	UPDATE_VTIME __LC_EXIT_TIMER,__LC_ASYNC_ENTER_TIMER,__LC_USER_TIMER
-	UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
-	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_ASYNC_ENTER_TIMER
-	LAST_BREAK
-ext_no_vtime:
+	stmg	%r8,%r15,__LC_SAVE_AREA_ASYNC
+	lg	%r10,__LC_LAST_BREAK
+	lg	%r12,__LC_THREAD_INFO
+	larl	%r13,system_call
+	lmg	%r8,%r9,__LC_EXT_OLD_PSW
+	HANDLE_SIE_INTERCEPT %r14
+	SWITCH_ASYNC __LC_SAVE_AREA_ASYNC,__LC_ASYNC_STACK,STACK_SHIFT
+	tmhh	%r8,0x0001		# interrupting from user ?
+	jz	ext_skip
+	UPDATE_VTIME %r14,__LC_ASYNC_ENTER_TIMER
+	LAST_BREAK %r14
+ext_skip:
+	stmg	%r0,%r7,__PT_R0(%r11)
+	mvc	__PT_R8(64,%r11),__LC_SAVE_AREA_ASYNC
+	stmg	%r8,%r9,__PT_PSW(%r11)
 	TRACE_IRQS_OFF
 	lghi	%r1,4096
-	la	%r2,SP_PTREGS(%r15)	# address of register-save area
+	lgr	%r2,%r11		# pass pointer to pt_regs
 	llgf	%r3,__LC_CPU_ADDRESS	# get cpu address + interruption code
 	llgf	%r4,__LC_EXT_PARAMS	# get external parameter
 	lg	%r5,__LC_EXT_PARAMS2-4096(%r1)	# get 64 bit external parameter
@@ -730,81 +641,77 @@ ENTRY(mcck_int_handler)
 	la	%r1,4095		# revalidate r1
 	spt	__LC_CPU_TIMER_SAVE_AREA-4095(%r1)	# revalidate cpu timer
 	lmg	%r0,%r15,__LC_GPREGS_SAVE_AREA-4095(%r1)# revalidate gprs
-	stmg	%r11,%r15,__LC_SAVE_AREA+80
+	lg	%r10,__LC_LAST_BREAK
+	lg	%r12,__LC_THREAD_INFO
 	larl	%r13,system_call
-	lg	%r11,__LC_LAST_BREAK
-	la	%r12,__LC_MCK_OLD_PSW
+	lmg	%r8,%r9,__LC_MCK_OLD_PSW
+	HANDLE_SIE_INTERCEPT %r14
 	tm	__LC_MCCK_CODE,0x80	# system damage?
-	jo	mcck_int_main		# yes -> rest of mcck code invalid
-	la	%r14,4095
-	mvc	__LC_MCCK_ENTER_TIMER(8),__LC_CPU_TIMER_SAVE_AREA-4095(%r14)
+	jo	mcck_panic		# yes -> rest of mcck code invalid
+	lghi	%r14,__LC_CPU_TIMER_SAVE_AREA
+	mvc	__LC_MCCK_ENTER_TIMER(8),0(%r14)
 	tm	__LC_MCCK_CODE+5,0x02	# stored cpu timer value valid?
-	jo	1f
+	jo	3f
 	la	%r14,__LC_SYNC_ENTER_TIMER
 	clc	0(8,%r14),__LC_ASYNC_ENTER_TIMER
 	jl	0f
 	la	%r14,__LC_ASYNC_ENTER_TIMER
 0:	clc	0(8,%r14),__LC_EXIT_TIMER
-	jl	0f
+	jl	1f
 	la	%r14,__LC_EXIT_TIMER
-0:	clc	0(8,%r14),__LC_LAST_UPDATE_TIMER
-	jl	0f
+1:	clc	0(8,%r14),__LC_LAST_UPDATE_TIMER
+	jl	2f
 	la	%r14,__LC_LAST_UPDATE_TIMER
-0:	spt	0(%r14)
+2:	spt	0(%r14)
 	mvc	__LC_MCCK_ENTER_TIMER(8),0(%r14)
-1:	tm	__LC_MCCK_CODE+2,0x09	# mwp + ia of old psw valid?
-	jno	mcck_int_main		# no -> skip cleanup critical
-	tm	__LC_MCK_OLD_PSW+1,0x01 # test problem state bit
-	jnz	mcck_int_main		# from user -> load kernel stack
-	clc	__LC_MCK_OLD_PSW+8(8),BASED(.Lcritical_end)
-	jhe	mcck_int_main
-	clc	__LC_MCK_OLD_PSW+8(8),BASED(.Lcritical_start)
-	jl	mcck_int_main
-	brasl	%r14,cleanup_critical
-mcck_int_main:
-	lg	%r14,__LC_PANIC_STACK	# are we already on the panic stack?
-	slgr	%r14,%r15
-	srag	%r14,%r14,PAGE_SHIFT
-	jz	0f
-	lg	%r15,__LC_PANIC_STACK	# load panic stack
-0:	aghi	%r15,-SP_SIZE		# make room for registers & psw
-	CREATE_STACK_FRAME __LC_SAVE_AREA+80
-	mvc	SP_PSW(16,%r15),0(%r12)
-	lg	%r12,__LC_THREAD_INFO	# load pointer to thread_info struct
-	tm	__LC_MCCK_CODE+2,0x08	# mwp of old psw valid?
-	jno	mcck_no_vtime		# no -> no timer update
-	HANDLE_SIE_INTERCEPT
-	tm	SP_PSW+1(%r15),0x01	# interrupting from user ?
-	jz	mcck_no_vtime
-	UPDATE_VTIME __LC_EXIT_TIMER,__LC_MCCK_ENTER_TIMER,__LC_USER_TIMER
-	UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
-	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_MCCK_ENTER_TIMER
-	LAST_BREAK
-mcck_no_vtime:
-	la	%r2,SP_PTREGS(%r15)	# load pt_regs
+3:	tm	__LC_MCCK_CODE+2,0x09	# mwp + ia of old psw valid?
+	jno	mcck_panic		# no -> skip cleanup critical
+	SWITCH_ASYNC __LC_GPREGS_SAVE_AREA+64,__LC_PANIC_STACK,PAGE_SHIFT
+	tm	%r8,0x0001		# interrupting from user ?
+	jz	mcck_skip
+	UPDATE_VTIME %r14,__LC_MCCK_ENTER_TIMER
+	LAST_BREAK %r14
+mcck_skip:
+	lghi	%r14,__LC_GPREGS_SAVE_AREA
+	mvc	__PT_R0(128,%r11),0(%r14)
+	stmg	%r8,%r9,__PT_PSW(%r11)
+	xc	__SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15)
+	lgr	%r2,%r11		# pass pointer to pt_regs
 	brasl	%r14,s390_do_machine_check
-	tm	SP_PSW+1(%r15),0x01	# returning to user ?
+	tm	__PT_PSW+1(%r11),0x01	# returning to user ?
 	jno	mcck_return
 	lg	%r1,__LC_KERNEL_STACK	# switch to kernel stack
-	aghi	%r1,-SP_SIZE
-	mvc	SP_PTREGS(__PT_SIZE,%r1),SP_PTREGS(%r15)
-	xc	__SF_BACKCHAIN(8,%r1),__SF_BACKCHAIN(%r1) # clear back chain
+	aghi	%r1,-(STACK_FRAME_OVERHEAD + __PT_SIZE)
+	mvc	STACK_FRAME_OVERHEAD(__PT_SIZE,%r1),0(%r11)
+	xc	__SF_BACKCHAIN(8,%r1),__SF_BACKCHAIN(%r1)
+	la	%r11,STACK_FRAME_OVERHEAD(%r1)
 	lgr	%r15,%r1
-	stosm	__SF_EMPTY(%r15),0x04	# turn dat on
+	ssm	__LC_PGM_NEW_PSW	# turn dat on, keep irqs off
 	tm	__TI_flags+7(%r12),_TIF_MCCK_PENDING
 	jno	mcck_return
 	TRACE_IRQS_OFF
 	brasl	%r14,s390_handle_mcck
 	TRACE_IRQS_ON
 mcck_return:
-	mvc	__LC_RETURN_MCCK_PSW(16),SP_PSW(%r15) # move return PSW
+	lg	%r14,__LC_VDSO_PER_CPU
+	lmg	%r0,%r10,__PT_R0(%r11)
+	mvc	__LC_RETURN_MCCK_PSW(16),__PT_PSW(%r11) # move return PSW
 	ni	__LC_RETURN_MCCK_PSW+1,0xfd # clear wait state bit
-	lmg	%r0,%r15,SP_R0(%r15)	# load gprs 0-15
 	tm	__LC_RETURN_MCCK_PSW+1,0x01 # returning to user ?
 	jno	0f
 	stpt	__LC_EXIT_TIMER
-0:	lpswe	__LC_RETURN_MCCK_PSW	# back to caller
-mcck_done:
+	mvc	__VDSO_ECTG_BASE(16,%r14),__LC_EXIT_TIMER
+0:	lmg	%r11,%r15,__PT_R11(%r11)
+	lpswe	__LC_RETURN_MCCK_PSW
+
+mcck_panic:
+	lg	%r14,__LC_PANIC_STACK
+	slgr	%r14,%r15
+	srag	%r14,%r14,PAGE_SHIFT
+	jz	0f
+	lg	%r15,__LC_PANIC_STACK
+0:	aghi	%r15,-(STACK_FRAME_OVERHEAD + __PT_SIZE)
+	j	mcck_skip
 
 /*
  * Restart interruption handler, kick starter for additional CPUs
@@ -818,17 +725,18 @@ restart_base:
 	stck	__LC_LAST_UPDATE_CLOCK
 	mvc	__LC_LAST_UPDATE_TIMER(8),restart_vtime-restart_base(%r1)
 	mvc	__LC_EXIT_TIMER(8),restart_vtime-restart_base(%r1)
-	lg	%r15,__LC_SAVE_AREA+120 # load ksp
+	lghi	%r10,__LC_GPREGS_SAVE_AREA
+	lg	%r15,120(%r10)		# load ksp
 	lghi	%r10,__LC_CREGS_SAVE_AREA
-	lctlg	%c0,%c15,0(%r10) # get new ctl regs
+	lctlg	%c0,%c15,0(%r10)	# get new ctl regs
 	lghi	%r10,__LC_AREGS_SAVE_AREA
 	lam	%a0,%a15,0(%r10)
-	lmg	%r6,%r15,__SF_GPRS(%r15) # load registers from clone
+	lmg	%r6,%r15,__SF_GPRS(%r15)# load registers from clone
 	lg	%r1,__LC_THREAD_INFO
 	mvc	__LC_USER_TIMER(8),__TI_user_timer(%r1)
 	mvc	__LC_SYSTEM_TIMER(8),__TI_system_timer(%r1)
 	xc	__LC_STEAL_TIMER(8),__LC_STEAL_TIMER
-	stosm	__SF_EMPTY(%r15),0x04	# now we can turn dat on
+	ssm	__LC_PGM_NEW_PSW	# turn dat on, keep irqs off
 	brasl	%r14,start_secondary
 	.align	8
 restart_vtime:
@@ -852,16 +760,16 @@ restart_go:
 # PSW restart interrupt handler
 #
 ENTRY(psw_restart_int_handler)
-	stg	%r15,__LC_SAVE_AREA+120(%r0)	# save r15
+	stg	%r15,__LC_SAVE_AREA_RESTART
 	larl	%r15,restart_stack		# load restart stack
 	lg	%r15,0(%r15)
-	aghi	%r15,-SP_SIZE			# make room for pt_regs
-	stmg	%r0,%r14,SP_R0(%r15)		# store gprs %r0-%r14 to stack
-	mvc	SP_R15(8,%r15),__LC_SAVE_AREA+120(%r0)# store saved %r15 to stack
-	mvc	SP_PSW(16,%r15),__LC_RST_OLD_PSW(%r0)# store restart old psw
-	xc	__SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15) # set backchain to 0
+	aghi	%r15,-__PT_SIZE			# create pt_regs on stack
+	stmg	%r0,%r14,__PT_R0(%r15)
+	mvc	__PT_R15(8,%r15),__LC_SAVE_AREA_RESTART
+	mvc	__PT_PSW(16,%r15),__LC_RST_OLD_PSW # store restart old psw
+	aghi	%r15,-STACK_FRAME_OVERHEAD
+	xc	__SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15)
 	brasl	%r14,do_restart
-
 	larl	%r14,restart_psw_crash		# load disabled wait PSW if
 	lpswe	0(%r14)				# do_restart returns
 	.align 8
@@ -877,172 +785,153 @@ restart_psw_crash:
  * Setup a pt_regs so that show_trace can provide a good call trace.
  */
 stack_overflow:
-	lg	%r15,__LC_PANIC_STACK	# change to panic stack
-	aghi	%r15,-SP_SIZE
-	mvc	SP_PSW(16,%r15),0(%r12)	# move user PSW to stack
-	stmg	%r0,%r10,SP_R0(%r15)	# store gprs %r0-%r10 to kernel stack
-	la	%r1,__LC_SAVE_AREA
-	chi	%r12,__LC_SVC_OLD_PSW
-	je	0f
-	chi	%r12,__LC_PGM_OLD_PSW
-	je	0f
-	la	%r1,__LC_SAVE_AREA+40
-0:	mvc	SP_R11(40,%r15),0(%r1)	# move %r11-%r15 to stack
-	mvc	SP_ARGS(8,%r15),__LC_LAST_BREAK
-	xc	__SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15) # clear back chain
-	la	%r2,SP_PTREGS(%r15)	# load pt_regs
+	lg	%r11,__LC_PANIC_STACK	# change to panic stack
+	aghi	%r11,-__PT_SIZE		# create pt_regs
+	stmg	%r0,%r7,__PT_R0(%r11)
+	stmg	%r8,%r9,__PT_PSW(%r11)
+	mvc	__PT_R8(64,%r11),0(%r14)
+	stg	%r10,__PT_ORIG_GPR2(%r11) # store last break to orig_gpr2
+	lgr	%r15,%r11
+	aghi	%r15,-STACK_FRAME_OVERHEAD
+	xc	__SF_BACKCHAIN(8,%r15),__SF_BACKCHAIN(%r15)
+	lgr	%r2,%r11		# pass pointer to pt_regs
 	jg	kernel_stack_overflow
 #endif
 
-cleanup_table_system_call:
-	.quad	system_call, sysc_do_svc
-cleanup_table_sysc_tif:
-	.quad	sysc_tif, sysc_restore
-cleanup_table_sysc_restore:
-	.quad	sysc_restore, sysc_done
-cleanup_table_io_tif:
-	.quad	io_tif, io_restore
-cleanup_table_io_restore:
-	.quad	io_restore, io_done
+	.align	8
+cleanup_table:
+	.quad	system_call
+	.quad	sysc_do_svc
+	.quad	sysc_tif
+	.quad	sysc_restore
+	.quad	sysc_done
+	.quad	io_tif
+	.quad	io_restore
+	.quad	io_done
 
 cleanup_critical:
-	clc	8(8,%r12),BASED(cleanup_table_system_call)
+	clg	%r9,BASED(cleanup_table)	# system_call
 	jl	0f
-	clc	8(8,%r12),BASED(cleanup_table_system_call+8)
+	clg	%r9,BASED(cleanup_table+8)	# sysc_do_svc
 	jl	cleanup_system_call
-0:
-	clc	8(8,%r12),BASED(cleanup_table_sysc_tif)
+	clg	%r9,BASED(cleanup_table+16)	# sysc_tif
 	jl	0f
-	clc	8(8,%r12),BASED(cleanup_table_sysc_tif+8)
+	clg	%r9,BASED(cleanup_table+24)	# sysc_restore
 	jl	cleanup_sysc_tif
-0:
-	clc	8(8,%r12),BASED(cleanup_table_sysc_restore)
-	jl	0f
-	clc	8(8,%r12),BASED(cleanup_table_sysc_restore+8)
+	clg	%r9,BASED(cleanup_table+32)	# sysc_done
 	jl	cleanup_sysc_restore
-0:
-	clc	8(8,%r12),BASED(cleanup_table_io_tif)
+	clg	%r9,BASED(cleanup_table+40)	# io_tif
 	jl	0f
-	clc	8(8,%r12),BASED(cleanup_table_io_tif+8)
+	clg	%r9,BASED(cleanup_table+48)	# io_restore
 	jl	cleanup_io_tif
-0:
-	clc	8(8,%r12),BASED(cleanup_table_io_restore)
-	jl	0f
-	clc	8(8,%r12),BASED(cleanup_table_io_restore+8)
+	clg	%r9,BASED(cleanup_table+56)	# io_done
 	jl	cleanup_io_restore
-0:
-	br	%r14
+0:	br	%r14
+
 
 cleanup_system_call:
-	mvc	__LC_RETURN_PSW(16),0(%r12)
-	clc	__LC_RETURN_PSW+8(8),BASED(cleanup_system_call_insn+8)
+	# check if stpt has been executed
+	clg	%r9,BASED(cleanup_system_call_insn)
 	jh	0f
-	mvc	__LC_SYNC_ENTER_TIMER(8),__LC_MCCK_ENTER_TIMER
-	cghi	%r12,__LC_MCK_OLD_PSW
-	je	0f
 	mvc	__LC_SYNC_ENTER_TIMER(8),__LC_ASYNC_ENTER_TIMER
-0:	cghi	%r12,__LC_MCK_OLD_PSW
-	la	%r12,__LC_SAVE_AREA+80
+	cghi	%r11,__LC_SAVE_AREA_ASYNC
 	je	0f
-	la	%r12,__LC_SAVE_AREA+40
-0:	clc	__LC_RETURN_PSW+8(8),BASED(cleanup_system_call_insn+16)
-	jhe	cleanup_vtime
-	clc	__LC_RETURN_PSW+8(8),BASED(cleanup_system_call_insn)
+	mvc	__LC_SYNC_ENTER_TIMER(8),__LC_MCCK_ENTER_TIMER
+0:	# check if stmg has been executed
+	clg	%r9,BASED(cleanup_system_call_insn+8)
 	jh	0f
-	mvc	__LC_SAVE_AREA(40),0(%r12)
-0:	lg	%r15,__LC_KERNEL_STACK	# problem state -> load ksp
-	aghi	%r15,-SP_SIZE		# make room for registers & psw
-	stg	%r15,32(%r12)
-	stg	%r11,0(%r12)
-	CREATE_STACK_FRAME __LC_SAVE_AREA
-	mvc	8(8,%r12),__LC_THREAD_INFO
-	lg	%r12,__LC_THREAD_INFO
-	mvc	SP_PSW(16,%r15),__LC_SVC_OLD_PSW
-	mvc	SP_SVC_CODE(4,%r15),__LC_SVC_ILC
-	oi	__TI_flags+7(%r12),_TIF_SYSCALL
-cleanup_vtime:
-	clc	__LC_RETURN_PSW+8(8),BASED(cleanup_system_call_insn+24)
-	jhe	cleanup_stime
-	UPDATE_VTIME __LC_EXIT_TIMER,__LC_SYNC_ENTER_TIMER,__LC_USER_TIMER
-cleanup_stime:
-	clc	__LC_RETURN_PSW+8(8),BASED(cleanup_system_call_insn+32)
-	jh	cleanup_update
-	UPDATE_VTIME __LC_LAST_UPDATE_TIMER,__LC_EXIT_TIMER,__LC_SYSTEM_TIMER
-cleanup_update:
+	mvc	__LC_SAVE_AREA_SYNC(64),0(%r11)
+0:	# check if base register setup + TIF bit load has been done
+	clg	%r9,BASED(cleanup_system_call_insn+16)
+	jhe	0f
+	# set up saved registers r10 and r12
+	stg	%r10,16(%r11)		# r10 last break
+	stg	%r12,32(%r11)		# r12 thread-info pointer
+0:	# check if the user time update has been done
+	clg	%r9,BASED(cleanup_system_call_insn+24)
+	jh	0f
+	lg	%r15,__LC_EXIT_TIMER
+	slg	%r15,__LC_SYNC_ENTER_TIMER
+	alg	%r15,__LC_USER_TIMER
+	stg	%r15,__LC_USER_TIMER
+0:	# check if the system time update has been done
+	clg	%r9,BASED(cleanup_system_call_insn+32)
+	jh	0f
+	lg	%r15,__LC_LAST_UPDATE_TIMER
+	slg	%r15,__LC_EXIT_TIMER
+	alg	%r15,__LC_SYSTEM_TIMER
+	stg	%r15,__LC_SYSTEM_TIMER
+0:	# update accounting time stamp
 	mvc	__LC_LAST_UPDATE_TIMER(8),__LC_SYNC_ENTER_TIMER
-	srag	%r12,%r11,23
-	lg	%r12,__LC_THREAD_INFO
+	# do LAST_BREAK
+	lg	%r9,16(%r11)
+	srag	%r9,%r9,23
 	jz	0f
-	stg	%r11,__TI_last_break(%r12)
-0:	mvc	__LC_RETURN_PSW+8(8),BASED(cleanup_table_system_call+8)
-	la	%r12,__LC_RETURN_PSW
+	mvc	__TI_last_break(8,%r12),16(%r11)
+0:	# set up saved register r11
+	lg	%r15,__LC_KERNEL_STACK
+	aghi	%r15,-__PT_SIZE
+	stg	%r15,24(%r11)		# r11 pt_regs pointer
+	# fill pt_regs
+	mvc	__PT_R8(64,%r15),__LC_SAVE_AREA_SYNC
+	stmg	%r0,%r7,__PT_R0(%r15)
+	mvc	__PT_PSW(16,%r15),__LC_SVC_OLD_PSW
+	mvc	__PT_INT_CODE(4,%r15),__LC_SVC_ILC
+	# setup saved register r15
+	aghi	%r15,-STACK_FRAME_OVERHEAD
+	stg	%r15,56(%r11)		# r15 stack pointer
+	# set new psw address and exit
+	larl	%r9,sysc_do_svc
 	br	%r14
 cleanup_system_call_insn:
-	.quad	sysc_saveall
 	.quad	system_call
-	.quad	sysc_vtime
-	.quad	sysc_stime
-	.quad	sysc_update
+	.quad	sysc_stmg
+	.quad	sysc_per
+	.quad	sysc_vtime+18
+	.quad	sysc_vtime+42
 
 cleanup_sysc_tif:
-	mvc	__LC_RETURN_PSW(8),0(%r12)
-	mvc	__LC_RETURN_PSW+8(8),BASED(cleanup_table_sysc_tif)
-	la	%r12,__LC_RETURN_PSW
+	larl	%r9,sysc_tif
 	br	%r14
 
 cleanup_sysc_restore:
-	clc	8(8,%r12),BASED(cleanup_sysc_restore_insn)
-	je	2f
-	clc	8(8,%r12),BASED(cleanup_sysc_restore_insn+8)
-	jhe	0f
-	mvc	__LC_EXIT_TIMER(8),__LC_MCCK_ENTER_TIMER
-	cghi	%r12,__LC_MCK_OLD_PSW
+	clg	%r9,BASED(cleanup_sysc_restore_insn)
 	je	0f
-	mvc	__LC_EXIT_TIMER(8),__LC_ASYNC_ENTER_TIMER
-0:	mvc	__LC_RETURN_PSW(16),SP_PSW(%r15)
-	cghi	%r12,__LC_MCK_OLD_PSW
-	la	%r12,__LC_SAVE_AREA+80
-	je	1f
-	la	%r12,__LC_SAVE_AREA+40
-1:	mvc	0(40,%r12),SP_R11(%r15)
-	lmg	%r0,%r10,SP_R0(%r15)
-	lg	%r15,SP_R15(%r15)
-2:	la	%r12,__LC_RETURN_PSW
+	lg	%r9,24(%r11)		# get saved pointer to pt_regs
+	mvc	__LC_RETURN_PSW(16),__PT_PSW(%r9)
+	mvc	0(64,%r11),__PT_R8(%r9)
+	lmg	%r0,%r7,__PT_R0(%r9)
+0:	lmg	%r8,%r9,__LC_RETURN_PSW
 	br	%r14
 cleanup_sysc_restore_insn:
 	.quad	sysc_done - 4
-	.quad	sysc_done - 16
 
 cleanup_io_tif:
-	mvc	__LC_RETURN_PSW(8),0(%r12)
-	mvc	__LC_RETURN_PSW+8(8),BASED(cleanup_table_io_tif)
-	la	%r12,__LC_RETURN_PSW
+	larl	%r9,io_tif
 	br	%r14
 
 cleanup_io_restore:
-	clc	8(8,%r12),BASED(cleanup_io_restore_insn)
-	je	1f
-	clc	8(8,%r12),BASED(cleanup_io_restore_insn+8)
-	jhe	0f
-	mvc	__LC_EXIT_TIMER(8),__LC_MCCK_ENTER_TIMER
-0:	mvc	__LC_RETURN_PSW(16),SP_PSW(%r15)
-	mvc	__LC_SAVE_AREA+80(40),SP_R11(%r15)
-	lmg	%r0,%r10,SP_R0(%r15)
-	lg	%r15,SP_R15(%r15)
-1:	la	%r12,__LC_RETURN_PSW
+	clg	%r9,BASED(cleanup_io_restore_insn)
+	je	0f
+	lg	%r9,24(%r11)		# get saved r11 pointer to pt_regs
+	mvc	__LC_RETURN_PSW(16),__PT_PSW(%r9)
+	ni	__LC_RETURN_PSW+1,0xfd	# clear wait state bit
+	mvc	0(64,%r11),__PT_R8(%r9)
+	lmg	%r0,%r7,__PT_R0(%r9)
+0:	lmg	%r8,%r9,__LC_RETURN_PSW
 	br	%r14
 cleanup_io_restore_insn:
 	.quad	io_done - 4
-	.quad	io_done - 16
 
 /*
  * Integer constants
  */
-		.align	4
+	.align	8
 .Lcritical_start:
-		.quad	__critical_start
-.Lcritical_end:
-		.quad	__critical_end
+	.quad	__critical_start
+.Lcritical_length:
+	.quad	__critical_end - __critical_start
+
 
 #if defined(CONFIG_KVM) || defined(CONFIG_KVM_MODULE)
 /*
@@ -1054,6 +943,7 @@ ENTRY(sie64a)
 	stmg	%r6,%r14,__SF_GPRS(%r15)	# save kernel registers
 	stg	%r2,__SF_EMPTY(%r15)		# save control block pointer
 	stg	%r3,__SF_EMPTY+8(%r15)		# save guest register save area
+	xc	__SF_EMPTY+16(8,%r15),__SF_EMPTY+16(%r15) # host id == 0
 	lmg	%r0,%r13,0(%r3)			# load guest gprs 0-13
 	lg	%r14,__LC_THREAD_INFO		# pointer thread_info struct
 	oi	__TI_flags+6(%r14),_TIF_SIE>>8
@@ -1070,7 +960,7 @@ sie_gmap:
 	SPP	__SF_EMPTY(%r15)		# set guest id
 	sie	0(%r14)
 sie_done:
-	SPP	__LC_CMF_HPP			# set host id
+	SPP	__SF_EMPTY+16(%r15)		# set host id
 	lg	%r14,__LC_THREAD_INFO		# pointer thread_info struct
 sie_exit:
 	lctlg	%c1,%c1,__LC_USER_ASCE		# load primary asce
@@ -1093,8 +983,10 @@ sie_fault:
 	.align	8
 .Lsie_loop:
 	.quad	sie_loop
-.Lsie_done:
-	.quad	sie_done
+.Lsie_length:
+	.quad	sie_done - sie_loop
+.Lhost_id:
+	.quad	0
 
 	.section __ex_table,"a"
 	.quad	sie_loop,sie_fault
diff --git a/arch/s390/kernel/head.S b/arch/s390/kernel/head.S
index 900068d2bf92..c27a0727f930 100644
--- a/arch/s390/kernel/head.S
+++ b/arch/s390/kernel/head.S
@@ -329,8 +329,8 @@ iplstart:
 #
 # reset files in VM reader
 #
-	stidp	__LC_SAVE_AREA		# store cpuid
-	tm	__LC_SAVE_AREA,0xff	# running VM ?
+	stidp	__LC_SAVE_AREA_SYNC	# store cpuid
+	tm	__LC_SAVE_AREA_SYNC,0xff# running VM ?
 	bno	.Lnoreset
 	la	%r2,.Lreset
 	lhi	%r3,26
diff --git a/arch/s390/kernel/machine_kexec.c b/arch/s390/kernel/machine_kexec.c
index 3cd0f25ab015..47b168fb29c4 100644
--- a/arch/s390/kernel/machine_kexec.c
+++ b/arch/s390/kernel/machine_kexec.c
@@ -208,6 +208,7 @@ void machine_kexec_cleanup(struct kimage *image)
 void arch_crash_save_vmcoreinfo(void)
 {
 	VMCOREINFO_SYMBOL(lowcore_ptr);
+	VMCOREINFO_SYMBOL(high_memory);
 	VMCOREINFO_LENGTH(lowcore_ptr, NR_CPUS);
 }
 
diff --git a/arch/s390/kernel/mem_detect.c b/arch/s390/kernel/mem_detect.c
index 19b4568f4cee..22d502e885ed 100644
--- a/arch/s390/kernel/mem_detect.c
+++ b/arch/s390/kernel/mem_detect.c
@@ -64,70 +64,82 @@ void detect_memory_layout(struct mem_chunk chunk[])
 EXPORT_SYMBOL(detect_memory_layout);
 
 /*
+ * Move memory chunks array from index "from" to index "to"
+ */
+static void mem_chunk_move(struct mem_chunk chunk[], int to, int from)
+{
+	int cnt = MEMORY_CHUNKS - to;
+
+	memmove(&chunk[to], &chunk[from], cnt * sizeof(struct mem_chunk));
+}
+
+/*
+ * Initialize memory chunk
+ */
+static void mem_chunk_init(struct mem_chunk *chunk, unsigned long addr,
+			   unsigned long size, int type)
+{
+	chunk->type = type;
+	chunk->addr = addr;
+	chunk->size = size;
+}
+
+/*
  * Create memory hole with given address, size, and type
  */
-void create_mem_hole(struct mem_chunk chunks[], unsigned long addr,
+void create_mem_hole(struct mem_chunk chunk[], unsigned long addr,
 		     unsigned long size, int type)
 {
-	unsigned long start, end, new_size;
-	int i;
+	unsigned long lh_start, lh_end, lh_size, ch_start, ch_end, ch_size;
+	int i, ch_type;
 
 	for (i = 0; i < MEMORY_CHUNKS; i++) {
-		if (chunks[i].size == 0)
-			continue;
-		if (addr + size < chunks[i].addr)
-			continue;
-		if (addr >= chunks[i].addr + chunks[i].size)
+		if (chunk[i].size == 0)
 			continue;
-		start = max(addr, chunks[i].addr);
-		end = min(addr + size, chunks[i].addr + chunks[i].size);
-		new_size = end - start;
-		if (new_size == 0)
-			continue;
-		if (start == chunks[i].addr &&
-		    end == chunks[i].addr + chunks[i].size) {
-			/* Remove chunk */
-			chunks[i].type = type;
-		} else if (start == chunks[i].addr) {
-			/* Make chunk smaller at start */
-			if (i >= MEMORY_CHUNKS - 1)
-				panic("Unable to create memory hole");
-			memmove(&chunks[i + 1], &chunks[i],
-				sizeof(struct mem_chunk) *
-				(MEMORY_CHUNKS - (i + 1)));
-			chunks[i + 1].addr = chunks[i].addr + new_size;
-			chunks[i + 1].size = chunks[i].size - new_size;
-			chunks[i].size = new_size;
-			chunks[i].type = type;
-			i += 1;
-		} else if (end == chunks[i].addr + chunks[i].size) {
-			/* Make chunk smaller at end */
-			if (i >= MEMORY_CHUNKS - 1)
-				panic("Unable to create memory hole");
-			memmove(&chunks[i + 1], &chunks[i],
-				sizeof(struct mem_chunk) *
-				(MEMORY_CHUNKS - (i + 1)));
-			chunks[i + 1].addr = start;
-			chunks[i + 1].size = new_size;
-			chunks[i + 1].type = type;
-			chunks[i].size -= new_size;
+
+		/* Define chunk properties */
+		ch_start = chunk[i].addr;
+		ch_size = chunk[i].size;
+		ch_end = ch_start + ch_size - 1;
+		ch_type = chunk[i].type;
+
+		/* Is memory chunk hit by memory hole? */
+		if (addr + size <= ch_start)
+			continue; /* No: memory hole in front of chunk */
+		if (addr > ch_end)
+			continue; /* No: memory hole after chunk */
+
+		/* Yes: Define local hole properties */
+		lh_start = max(addr, chunk[i].addr);
+		lh_end = min(addr + size - 1, ch_end);
+		lh_size = lh_end - lh_start + 1;
+
+		if (lh_start == ch_start && lh_end == ch_end) {
+			/* Hole covers complete memory chunk */
+			mem_chunk_init(&chunk[i], lh_start, lh_size, type);
+		} else if (lh_end == ch_end) {
+			/* Hole starts in memory chunk and convers chunk end */
+			mem_chunk_move(chunk, i + 1, i);
+			mem_chunk_init(&chunk[i], ch_start, ch_size - lh_size,
+				       ch_type);
+			mem_chunk_init(&chunk[i + 1], lh_start, lh_size, type);
 			i += 1;
+		} else if (lh_start == ch_start) {
+			/* Hole ends in memory chunk */
+			mem_chunk_move(chunk, i + 1, i);
+			mem_chunk_init(&chunk[i], lh_start, lh_size, type);
+			mem_chunk_init(&chunk[i + 1], lh_end + 1,
+				       ch_size - lh_size, ch_type);
+			break;
 		} else {
-			/* Create memory hole */
-			if (i >= MEMORY_CHUNKS - 2)
-				panic("Unable to create memory hole");
-			memmove(&chunks[i + 2], &chunks[i],
-				sizeof(struct mem_chunk) *
-				(MEMORY_CHUNKS - (i + 2)));
-			chunks[i + 1].addr = addr;
-			chunks[i + 1].size = size;
-			chunks[i + 1].type = type;
-			chunks[i + 2].addr = addr + size;
-			chunks[i + 2].size =
-				chunks[i].addr + chunks[i].size - (addr + size);
-			chunks[i + 2].type = chunks[i].type;
-			chunks[i].size = addr - chunks[i].addr;
-			i += 2;
+			/* Hole splits memory chunk */
+			mem_chunk_move(chunk, i + 2, i);
+			mem_chunk_init(&chunk[i], ch_start,
+				       lh_start - ch_start, ch_type);
+			mem_chunk_init(&chunk[i + 1], lh_start, lh_size, type);
+			mem_chunk_init(&chunk[i + 2], lh_end + 1,
+				       ch_end - lh_end, ch_type);
+			break;
 		}
 	}
 }
diff --git a/arch/s390/kernel/reipl64.S b/arch/s390/kernel/reipl64.S
index 732a793ec53a..36b32658fb24 100644
--- a/arch/s390/kernel/reipl64.S
+++ b/arch/s390/kernel/reipl64.S
@@ -17,11 +17,11 @@
 #
 ENTRY(store_status)
 	/* Save register one and load save area base */
-	stg	%r1,__LC_SAVE_AREA+120(%r0)
+	stg	%r1,__LC_SAVE_AREA_RESTART
 	lghi	%r1,SAVE_AREA_BASE
 	/* General purpose registers */
 	stmg	%r0,%r15,__LC_GPREGS_SAVE_AREA-SAVE_AREA_BASE(%r1)
-	lg	%r2,__LC_SAVE_AREA+120(%r0)
+	lg	%r2,__LC_SAVE_AREA_RESTART
 	stg	%r2,__LC_GPREGS_SAVE_AREA-SAVE_AREA_BASE+8(%r1)
 	/* Control registers */
 	stctg	%c0,%c15,__LC_CREGS_SAVE_AREA-SAVE_AREA_BASE(%r1)
diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c
index f11d1b037c50..354de0763eff 100644
--- a/arch/s390/kernel/setup.c
+++ b/arch/s390/kernel/setup.c
@@ -95,6 +95,15 @@ struct mem_chunk __initdata memory_chunk[MEMORY_CHUNKS];
 int __initdata memory_end_set;
 unsigned long __initdata memory_end;
 
+unsigned long VMALLOC_START;
+EXPORT_SYMBOL(VMALLOC_START);
+
+unsigned long VMALLOC_END;
+EXPORT_SYMBOL(VMALLOC_END);
+
+struct page *vmemmap;
+EXPORT_SYMBOL(vmemmap);
+
 /* An array with a pointer to the lowcore of every CPU. */
 struct _lowcore *lowcore_ptr[NR_CPUS];
 EXPORT_SYMBOL(lowcore_ptr);
@@ -278,6 +287,15 @@ static int __init early_parse_mem(char *p)
 }
 early_param("mem", early_parse_mem);
 
+static int __init parse_vmalloc(char *arg)
+{
+	if (!arg)
+		return -EINVAL;
+	VMALLOC_END = (memparse(arg, &arg) + PAGE_SIZE - 1) & PAGE_MASK;
+	return 0;
+}
+early_param("vmalloc", parse_vmalloc);
+
 unsigned int user_mode = HOME_SPACE_MODE;
 EXPORT_SYMBOL_GPL(user_mode);
 
@@ -383,7 +401,6 @@ setup_lowcore(void)
 		__ctl_set_bit(14, 29);
 	}
 #else
-	lc->cmf_hpp = -1ULL;
 	lc->vdso_per_cpu_data = (unsigned long) &lc->paste[0];
 #endif
 	lc->sync_enter_timer = S390_lowcore.sync_enter_timer;
@@ -479,8 +496,7 @@ EXPORT_SYMBOL_GPL(real_memory_size);
 
 static void __init setup_memory_end(void)
 {
-	unsigned long memory_size;
-	unsigned long max_mem;
+	unsigned long vmax, vmalloc_size, tmp;
 	int i;
 
 
@@ -490,12 +506,9 @@ static void __init setup_memory_end(void)
 		memory_end_set = 1;
 	}
 #endif
-	memory_size = 0;
+	real_memory_size = 0;
 	memory_end &= PAGE_MASK;
 
-	max_mem = memory_end ? min(VMEM_MAX_PHYS, memory_end) : VMEM_MAX_PHYS;
-	memory_end = min(max_mem, memory_end);
-
 	/*
 	 * Make sure all chunks are MAX_ORDER aligned so we don't need the
 	 * extra checks that HOLES_IN_ZONE would require.
@@ -515,23 +528,48 @@ static void __init setup_memory_end(void)
 			chunk->addr = start;
 			chunk->size = end - start;
 		}
+		real_memory_size = max(real_memory_size,
+				       chunk->addr + chunk->size);
 	}
 
+	/* Choose kernel address space layout: 2, 3, or 4 levels. */
+#ifdef CONFIG_64BIT
+	vmalloc_size = VMALLOC_END ?: 128UL << 30;
+	tmp = (memory_end ?: real_memory_size) / PAGE_SIZE;
+	tmp = tmp * (sizeof(struct page) + PAGE_SIZE) + vmalloc_size;
+	if (tmp <= (1UL << 42))
+		vmax = 1UL << 42;	/* 3-level kernel page table */
+	else
+		vmax = 1UL << 53;	/* 4-level kernel page table */
+#else
+	vmalloc_size = VMALLOC_END ?: 96UL << 20;
+	vmax = 1UL << 31;		/* 2-level kernel page table */
+#endif
+	/* vmalloc area is at the end of the kernel address space. */
+	VMALLOC_END = vmax;
+	VMALLOC_START = vmax - vmalloc_size;
+
+	/* Split remaining virtual space between 1:1 mapping & vmemmap array */
+	tmp = VMALLOC_START / (PAGE_SIZE + sizeof(struct page));
+	tmp = VMALLOC_START - tmp * sizeof(struct page);
+	tmp &= ~((vmax >> 11) - 1);	/* align to page table level */
+	tmp = min(tmp, 1UL << MAX_PHYSMEM_BITS);
+	vmemmap = (struct page *) tmp;
+
+	/* Take care that memory_end is set and <= vmemmap */
+	memory_end = min(memory_end ?: real_memory_size, tmp);
+
+	/* Fixup memory chunk array to fit into 0..memory_end */
 	for (i = 0; i < MEMORY_CHUNKS; i++) {
 		struct mem_chunk *chunk = &memory_chunk[i];
 
-		real_memory_size = max(real_memory_size,
-				       chunk->addr + chunk->size);
-		if (chunk->addr >= max_mem) {
+		if (chunk->addr >= memory_end) {
 			memset(chunk, 0, sizeof(*chunk));
 			continue;
 		}
-		if (chunk->addr + chunk->size > max_mem)
-			chunk->size = max_mem - chunk->addr;
-		memory_size = max(memory_size, chunk->addr + chunk->size);
+		if (chunk->addr + chunk->size > memory_end)
+			chunk->size = memory_end - chunk->addr;
 	}
-	if (!memory_end)
-		memory_end = memory_size;
 }
 
 void *restart_stack __attribute__((__section__(".data")));
@@ -655,7 +693,6 @@ static int __init verify_crash_base(unsigned long crash_base,
 static void __init reserve_kdump_bootmem(unsigned long addr, unsigned long size,
 					 int type)
 {
-
 	create_mem_hole(memory_chunk, addr, size, type);
 }
 
diff --git a/arch/s390/kernel/signal.c b/arch/s390/kernel/signal.c
index 7f6f9f354545..a8ba840294ff 100644
--- a/arch/s390/kernel/signal.c
+++ b/arch/s390/kernel/signal.c
@@ -302,9 +302,13 @@ static int setup_frame(int sig, struct k_sigaction *ka,
 
 	/* We forgot to include these in the sigcontext.
 	   To avoid breaking binary compatibility, they are passed as args. */
-	regs->gprs[4] = current->thread.trap_no;
-	regs->gprs[5] = current->thread.prot_addr;
-	regs->gprs[6] = task_thread_info(current)->last_break;
+	if (sig == SIGSEGV || sig == SIGBUS || sig == SIGILL ||
+	    sig == SIGTRAP || sig == SIGFPE) {
+		/* set extra registers only for synchronous signals */
+		regs->gprs[4] = regs->int_code & 127;
+		regs->gprs[5] = regs->int_parm_long;
+		regs->gprs[6] = task_thread_info(current)->last_break;
+	}
 
 	/* Place signal number on stack to allow backtrace from handler.  */
 	if (__put_user(regs->gprs[2], (int __user *) &frame->signo))
@@ -434,13 +438,13 @@ void do_signal(struct pt_regs *regs)
 	 * call information.
 	 */
 	current_thread_info()->system_call =
-		test_thread_flag(TIF_SYSCALL) ? regs->svc_code : 0;
+		test_thread_flag(TIF_SYSCALL) ? regs->int_code : 0;
 	signr = get_signal_to_deliver(&info, &ka, regs, NULL);
 
 	if (signr > 0) {
 		/* Whee!  Actually deliver the signal.  */
 		if (current_thread_info()->system_call) {
-			regs->svc_code = current_thread_info()->system_call;
+			regs->int_code = current_thread_info()->system_call;
 			/* Check for system call restarting. */
 			switch (regs->gprs[2]) {
 			case -ERESTART_RESTARTBLOCK:
@@ -457,7 +461,7 @@ void do_signal(struct pt_regs *regs)
 				regs->gprs[2] = regs->orig_gpr2;
 				regs->psw.addr =
 					__rewind_psw(regs->psw,
-						     regs->svc_code >> 16);
+						     regs->int_code >> 16);
 				break;
 			}
 		}
@@ -488,11 +492,11 @@ void do_signal(struct pt_regs *regs)
 	/* No handlers present - check for system call restart */
 	clear_thread_flag(TIF_SYSCALL);
 	if (current_thread_info()->system_call) {
-		regs->svc_code = current_thread_info()->system_call;
+		regs->int_code = current_thread_info()->system_call;
 		switch (regs->gprs[2]) {
 		case -ERESTART_RESTARTBLOCK:
 			/* Restart with sys_restart_syscall */
-			regs->svc_code = __NR_restart_syscall;
+			regs->int_code = __NR_restart_syscall;
 		/* fallthrough */
 		case -ERESTARTNOHAND:
 		case -ERESTARTSYS:
diff --git a/arch/s390/kernel/smp.c b/arch/s390/kernel/smp.c
index 66cca03c0282..2398ce6b15ae 100644
--- a/arch/s390/kernel/smp.c
+++ b/arch/s390/kernel/smp.c
@@ -69,9 +69,7 @@ enum s390_cpu_state {
 };
 
 DEFINE_MUTEX(smp_cpu_state_mutex);
-int smp_cpu_polarization[NR_CPUS];
 static int smp_cpu_state[NR_CPUS];
-static int cpu_management;
 
 static DEFINE_PER_CPU(struct cpu, cpu_devices);
 
@@ -149,29 +147,59 @@ void smp_switch_to_ipl_cpu(void (*func)(void *), void *data)
 	sp -= sizeof(struct pt_regs);
 	regs = (struct pt_regs *) sp;
 	memcpy(&regs->gprs, &current_lc->gpregs_save_area, sizeof(regs->gprs));
-	regs->psw = lc->psw_save_area;
+	regs->psw = current_lc->psw_save_area;
 	sp -= STACK_FRAME_OVERHEAD;
 	sf = (struct stack_frame *) sp;
-	sf->back_chain = regs->gprs[15];
+	sf->back_chain = 0;
 	smp_switch_to_cpu(func, data, sp, stap(), __cpu_logical_map[0]);
 }
 
+static void smp_stop_cpu(void)
+{
+	while (sigp(smp_processor_id(), sigp_stop) == sigp_busy)
+		cpu_relax();
+}
+
 void smp_send_stop(void)
 {
-	int cpu, rc;
+	cpumask_t cpumask;
+	int cpu;
+	u64 end;
 
 	/* Disable all interrupts/machine checks */
 	__load_psw_mask(psw_kernel_bits | PSW_MASK_DAT);
 	trace_hardirqs_off();
 
-	/* stop all processors */
-	for_each_online_cpu(cpu) {
-		if (cpu == smp_processor_id())
-			continue;
-		do {
-			rc = sigp(cpu, sigp_stop);
-		} while (rc == sigp_busy);
+	cpumask_copy(&cpumask, cpu_online_mask);
+	cpumask_clear_cpu(smp_processor_id(), &cpumask);
+
+	if (oops_in_progress) {
+		/*
+		 * Give the other cpus the opportunity to complete
+		 * outstanding interrupts before stopping them.
+		 */
+		end = get_clock() + (1000000UL << 12);
+		for_each_cpu(cpu, &cpumask) {
+			set_bit(ec_stop_cpu, (unsigned long *)
+				&lowcore_ptr[cpu]->ext_call_fast);
+			while (sigp(cpu, sigp_emergency_signal) == sigp_busy &&
+			       get_clock() < end)
+				cpu_relax();
+		}
+		while (get_clock() < end) {
+			for_each_cpu(cpu, &cpumask)
+				if (cpu_stopped(cpu))
+					cpumask_clear_cpu(cpu, &cpumask);
+			if (cpumask_empty(&cpumask))
+				break;
+			cpu_relax();
+		}
+	}
 
+	/* stop all processors */
+	for_each_cpu(cpu, &cpumask) {
+		while (sigp(cpu, sigp_stop) == sigp_busy)
+			cpu_relax();
 		while (!cpu_stopped(cpu))
 			cpu_relax();
 	}
@@ -187,7 +215,7 @@ static void do_ext_call_interrupt(unsigned int ext_int_code,
 {
 	unsigned long bits;
 
-	if (ext_int_code == 0x1202)
+	if ((ext_int_code & 0xffff) == 0x1202)
 		kstat_cpu(smp_processor_id()).irqs[EXTINT_EXC]++;
 	else
 		kstat_cpu(smp_processor_id()).irqs[EXTINT_EMS]++;
@@ -196,6 +224,9 @@ static void do_ext_call_interrupt(unsigned int ext_int_code,
 	 */
 	bits = xchg(&S390_lowcore.ext_call_fast, 0);
 
+	if (test_bit(ec_stop_cpu, &bits))
+		smp_stop_cpu();
+
 	if (test_bit(ec_schedule, &bits))
 		scheduler_ipi();
 
@@ -204,6 +235,7 @@ static void do_ext_call_interrupt(unsigned int ext_int_code,
 
 	if (test_bit(ec_call_function_single, &bits))
 		generic_smp_call_function_single_interrupt();
+
 }
 
 /*
@@ -369,7 +401,7 @@ static int smp_rescan_cpus_sigp(cpumask_t avail)
 		if (cpu_known(cpu_id))
 			continue;
 		__cpu_logical_map[logical_cpu] = cpu_id;
-		smp_cpu_polarization[logical_cpu] = POLARIZATION_UNKNWN;
+		cpu_set_polarization(logical_cpu, POLARIZATION_UNKNOWN);
 		if (!cpu_stopped(logical_cpu))
 			continue;
 		set_cpu_present(logical_cpu, true);
@@ -403,7 +435,7 @@ static int smp_rescan_cpus_sclp(cpumask_t avail)
 		if (cpu_known(cpu_id))
 			continue;
 		__cpu_logical_map[logical_cpu] = cpu_id;
-		smp_cpu_polarization[logical_cpu] = POLARIZATION_UNKNWN;
+		cpu_set_polarization(logical_cpu, POLARIZATION_UNKNOWN);
 		set_cpu_present(logical_cpu, true);
 		if (cpu >= info->configured)
 			smp_cpu_state[logical_cpu] = CPU_STATE_STANDBY;
@@ -656,7 +688,7 @@ int __cpuinit __cpu_up(unsigned int cpu)
 				     - sizeof(struct stack_frame));
 	memset(sf, 0, sizeof(struct stack_frame));
 	sf->gprs[9] = (unsigned long) sf;
-	cpu_lowcore->save_area[15] = (unsigned long) sf;
+	cpu_lowcore->gpregs_save_area[15] = (unsigned long) sf;
 	__ctl_store(cpu_lowcore->cregs_save_area, 0, 15);
 	atomic_inc(&init_mm.context.attach_count);
 	asm volatile(
@@ -806,7 +838,7 @@ void __init smp_prepare_boot_cpu(void)
 	S390_lowcore.percpu_offset = __per_cpu_offset[0];
 	current_set[0] = current;
 	smp_cpu_state[0] = CPU_STATE_CONFIGURED;
-	smp_cpu_polarization[0] = POLARIZATION_UNKNWN;
+	cpu_set_polarization(0, POLARIZATION_UNKNOWN);
 }
 
 void __init smp_cpus_done(unsigned int max_cpus)
@@ -868,7 +900,8 @@ static ssize_t cpu_configure_store(struct device *dev,
 			rc = sclp_cpu_deconfigure(__cpu_logical_map[cpu]);
 			if (!rc) {
 				smp_cpu_state[cpu] = CPU_STATE_STANDBY;
-				smp_cpu_polarization[cpu] = POLARIZATION_UNKNWN;
+				cpu_set_polarization(cpu, POLARIZATION_UNKNOWN);
+				topology_expect_change();
 			}
 		}
 		break;
@@ -877,7 +910,8 @@ static ssize_t cpu_configure_store(struct device *dev,
 			rc = sclp_cpu_configure(__cpu_logical_map[cpu]);
 			if (!rc) {
 				smp_cpu_state[cpu] = CPU_STATE_CONFIGURED;
-				smp_cpu_polarization[cpu] = POLARIZATION_UNKNWN;
+				cpu_set_polarization(cpu, POLARIZATION_UNKNOWN);
+				topology_expect_change();
 			}
 		}
 		break;
@@ -892,35 +926,6 @@ out:
 static DEVICE_ATTR(configure, 0644, cpu_configure_show, cpu_configure_store);
 #endif /* CONFIG_HOTPLUG_CPU */
 
-static ssize_t cpu_polarization_show(struct device *dev,
-				     struct device_attribute *attr, char *buf)
-{
-	int cpu = dev->id;
-	ssize_t count;
-
-	mutex_lock(&smp_cpu_state_mutex);
-	switch (smp_cpu_polarization[cpu]) {
-	case POLARIZATION_HRZ:
-		count = sprintf(buf, "horizontal\n");
-		break;
-	case POLARIZATION_VL:
-		count = sprintf(buf, "vertical:low\n");
-		break;
-	case POLARIZATION_VM:
-		count = sprintf(buf, "vertical:medium\n");
-		break;
-	case POLARIZATION_VH:
-		count = sprintf(buf, "vertical:high\n");
-		break;
-	default:
-		count = sprintf(buf, "unknown\n");
-		break;
-	}
-	mutex_unlock(&smp_cpu_state_mutex);
-	return count;
-}
-static DEVICE_ATTR(polarization, 0444, cpu_polarization_show, NULL);
-
 static ssize_t show_cpu_address(struct device *dev,
 				struct device_attribute *attr, char *buf)
 {
@@ -928,13 +933,11 @@ static ssize_t show_cpu_address(struct device *dev,
 }
 static DEVICE_ATTR(address, 0444, show_cpu_address, NULL);
 
-
 static struct attribute *cpu_common_attrs[] = {
 #ifdef CONFIG_HOTPLUG_CPU
 	&dev_attr_configure.attr,
 #endif
 	&dev_attr_address.attr,
-	&dev_attr_polarization.attr,
 	NULL,
 };
 
@@ -1055,11 +1058,20 @@ static int __devinit smp_add_present_cpu(int cpu)
 	rc = sysfs_create_group(&s->kobj, &cpu_common_attr_group);
 	if (rc)
 		goto out_cpu;
-	if (!cpu_online(cpu))
-		goto out;
-	rc = sysfs_create_group(&s->kobj, &cpu_online_attr_group);
-	if (!rc)
-		return 0;
+	if (cpu_online(cpu)) {
+		rc = sysfs_create_group(&s->kobj, &cpu_online_attr_group);
+		if (rc)
+			goto out_online;
+	}
+	rc = topology_cpu_init(c);
+	if (rc)
+		goto out_topology;
+	return 0;
+
+out_topology:
+	if (cpu_online(cpu))
+		sysfs_remove_group(&s->kobj, &cpu_online_attr_group);
+out_online:
 	sysfs_remove_group(&s->kobj, &cpu_common_attr_group);
 out_cpu:
 #ifdef CONFIG_HOTPLUG_CPU
@@ -1111,61 +1123,16 @@ static ssize_t __ref rescan_store(struct device *dev,
 static DEVICE_ATTR(rescan, 0200, NULL, rescan_store);
 #endif /* CONFIG_HOTPLUG_CPU */
 
-static ssize_t dispatching_show(struct device *dev,
-				struct device_attribute *attr,
-				char *buf)
-{
-	ssize_t count;
-
-	mutex_lock(&smp_cpu_state_mutex);
-	count = sprintf(buf, "%d\n", cpu_management);
-	mutex_unlock(&smp_cpu_state_mutex);
-	return count;
-}
-
-static ssize_t dispatching_store(struct device *dev,
-				 struct device_attribute *attr,
-				 const char *buf,
-				 size_t count)
-{
-	int val, rc;
-	char delim;
-
-	if (sscanf(buf, "%d %c", &val, &delim) != 1)
-		return -EINVAL;
-	if (val != 0 && val != 1)
-		return -EINVAL;
-	rc = 0;
-	get_online_cpus();
-	mutex_lock(&smp_cpu_state_mutex);
-	if (cpu_management == val)
-		goto out;
-	rc = topology_set_cpu_management(val);
-	if (!rc)
-		cpu_management = val;
-out:
-	mutex_unlock(&smp_cpu_state_mutex);
-	put_online_cpus();
-	return rc ? rc : count;
-}
-static DEVICE_ATTR(dispatching, 0644, dispatching_show,
-			 dispatching_store);
-
-static int __init topology_init(void)
+static int __init s390_smp_init(void)
 {
-	int cpu;
-	int rc;
+	int cpu, rc;
 
 	register_cpu_notifier(&smp_cpu_nb);
-
 #ifdef CONFIG_HOTPLUG_CPU
 	rc = device_create_file(cpu_subsys.dev_root, &dev_attr_rescan);
 	if (rc)
 		return rc;
 #endif
-	rc = device_create_file(cpu_subsys.dev_root, &dev_attr_dispatching);
-	if (rc)
-		return rc;
 	for_each_present_cpu(cpu) {
 		rc = smp_add_present_cpu(cpu);
 		if (rc)
@@ -1173,4 +1140,4 @@ static int __init topology_init(void)
 	}
 	return 0;
 }
-subsys_initcall(topology_init);
+subsys_initcall(s390_smp_init);
diff --git a/arch/s390/kernel/sys_s390.c b/arch/s390/kernel/sys_s390.c
index 476081440df9..78ea1948ff51 100644
--- a/arch/s390/kernel/sys_s390.c
+++ b/arch/s390/kernel/sys_s390.c
@@ -60,74 +60,22 @@ out:
 }
 
 /*
- * sys_ipc() is the de-multiplexer for the SysV IPC calls..
- *
- * This is really horribly ugly.
+ * sys_ipc() is the de-multiplexer for the SysV IPC calls.
  */
 SYSCALL_DEFINE5(s390_ipc, uint, call, int, first, unsigned long, second,
 		unsigned long, third, void __user *, ptr)
 {
-        struct ipc_kludge tmp;
-	int ret;
-
-        switch (call) {
-        case SEMOP:
-		return sys_semtimedop(first, (struct sembuf __user *)ptr,
-				       (unsigned)second, NULL);
-	case SEMTIMEDOP:
-		return sys_semtimedop(first, (struct sembuf __user *)ptr,
-				       (unsigned)second,
-				       (const struct timespec __user *) third);
-        case SEMGET:
-                return sys_semget(first, (int)second, third);
-        case SEMCTL: {
-                union semun fourth;
-                if (!ptr)
-                        return -EINVAL;
-                if (get_user(fourth.__pad, (void __user * __user *) ptr))
-                        return -EFAULT;
-                return sys_semctl(first, (int)second, third, fourth);
-        }
-        case MSGSND:
-		return sys_msgsnd (first, (struct msgbuf __user *) ptr,
-                                   (size_t)second, third);
-		break;
-        case MSGRCV:
-                if (!ptr)
-                        return -EINVAL;
-                if (copy_from_user (&tmp, (struct ipc_kludge __user *) ptr,
-                                    sizeof (struct ipc_kludge)))
-                        return -EFAULT;
-                return sys_msgrcv (first, tmp.msgp,
-                                   (size_t)second, tmp.msgtyp, third);
-        case MSGGET:
-                return sys_msgget((key_t)first, (int)second);
-        case MSGCTL:
-                return sys_msgctl(first, (int)second,
-				   (struct msqid_ds __user *)ptr);
-
-	case SHMAT: {
-		ulong raddr;
-		ret = do_shmat(first, (char __user *)ptr,
-				(int)second, &raddr);
-		if (ret)
-			return ret;
-		return put_user (raddr, (ulong __user *) third);
-		break;
-        }
-	case SHMDT:
-		return sys_shmdt ((char __user *)ptr);
-	case SHMGET:
-		return sys_shmget(first, (size_t)second, third);
-	case SHMCTL:
-		return sys_shmctl(first, (int)second,
-                                   (struct shmid_ds __user *) ptr);
-	default:
-		return -ENOSYS;
-
-	}
-
-	return -EINVAL;
+	if (call >> 16)
+		return -EINVAL;
+	/* The s390 sys_ipc variant has only five parameters instead of six
+	 * like the generic variant. The only difference is the handling of
+	 * the SEMTIMEDOP subcall where on s390 the third parameter is used
+	 * as a pointer to a struct timespec where the generic variant uses
+	 * the fifth parameter.
+	 * Therefore we can call the generic variant by simply passing the
+	 * third parameter also as fifth parameter.
+	 */
+	return sys_ipc(call, first, second, third, ptr, third);
 }
 
 #ifdef CONFIG_64BIT
diff --git a/arch/s390/kernel/topology.c b/arch/s390/kernel/topology.c
index 6e0e29b29a7b..7370a41948ca 100644
--- a/arch/s390/kernel/topology.c
+++ b/arch/s390/kernel/topology.c
@@ -1,22 +1,22 @@
 /*
- *    Copyright IBM Corp. 2007
+ *    Copyright IBM Corp. 2007,2011
  *    Author(s): Heiko Carstens <heiko.carstens@de.ibm.com>
  */
 
 #define KMSG_COMPONENT "cpu"
 #define pr_fmt(fmt) KMSG_COMPONENT ": " fmt
 
-#include <linux/kernel.h>
-#include <linux/mm.h>
-#include <linux/init.h>
-#include <linux/device.h>
+#include <linux/workqueue.h>
 #include <linux/bootmem.h>
+#include <linux/cpuset.h>
+#include <linux/device.h>
+#include <linux/kernel.h>
 #include <linux/sched.h>
-#include <linux/workqueue.h>
+#include <linux/init.h>
+#include <linux/delay.h>
 #include <linux/cpu.h>
 #include <linux/smp.h>
-#include <linux/cpuset.h>
-#include <asm/delay.h>
+#include <linux/mm.h>
 
 #define PTF_HORIZONTAL	(0UL)
 #define PTF_VERTICAL	(1UL)
@@ -31,7 +31,6 @@ struct mask_info {
 static int topology_enabled = 1;
 static void topology_work_fn(struct work_struct *work);
 static struct sysinfo_15_1_x *tl_info;
-static struct timer_list topology_timer;
 static void set_topology_timer(void);
 static DECLARE_WORK(topology_work, topology_work_fn);
 /* topology_lock protects the core linked list */
@@ -41,11 +40,12 @@ static struct mask_info core_info;
 cpumask_t cpu_core_map[NR_CPUS];
 unsigned char cpu_core_id[NR_CPUS];
 
-#ifdef CONFIG_SCHED_BOOK
 static struct mask_info book_info;
 cpumask_t cpu_book_map[NR_CPUS];
 unsigned char cpu_book_id[NR_CPUS];
-#endif
+
+/* smp_cpu_state_mutex must be held when accessing this array */
+int cpu_polarization[NR_CPUS];
 
 static cpumask_t cpu_group_map(struct mask_info *info, unsigned int cpu)
 {
@@ -71,7 +71,7 @@ static cpumask_t cpu_group_map(struct mask_info *info, unsigned int cpu)
 static struct mask_info *add_cpus_to_mask(struct topology_cpu *tl_cpu,
 					  struct mask_info *book,
 					  struct mask_info *core,
-					  int z10)
+					  int one_core_per_cpu)
 {
 	unsigned int cpu;
 
@@ -85,18 +85,16 @@ static struct mask_info *add_cpus_to_mask(struct topology_cpu *tl_cpu,
 		for_each_present_cpu(lcpu) {
 			if (cpu_logical_map(lcpu) != rcpu)
 				continue;
-#ifdef CONFIG_SCHED_BOOK
 			cpumask_set_cpu(lcpu, &book->mask);
 			cpu_book_id[lcpu] = book->id;
-#endif
 			cpumask_set_cpu(lcpu, &core->mask);
-			if (z10) {
+			if (one_core_per_cpu) {
 				cpu_core_id[lcpu] = rcpu;
 				core = core->next;
 			} else {
 				cpu_core_id[lcpu] = core->id;
 			}
-			smp_cpu_polarization[lcpu] = tl_cpu->pp;
+			cpu_set_polarization(lcpu, tl_cpu->pp);
 		}
 	}
 	return core;
@@ -111,13 +109,11 @@ static void clear_masks(void)
 		cpumask_clear(&info->mask);
 		info = info->next;
 	}
-#ifdef CONFIG_SCHED_BOOK
 	info = &book_info;
 	while (info) {
 		cpumask_clear(&info->mask);
 		info = info->next;
 	}
-#endif
 }
 
 static union topology_entry *next_tle(union topology_entry *tle)
@@ -127,66 +123,75 @@ static union topology_entry *next_tle(union topology_entry *tle)
 	return (union topology_entry *)((struct topology_container *)tle + 1);
 }
 
-static void tl_to_cores(struct sysinfo_15_1_x *info)
+static void __tl_to_cores_generic(struct sysinfo_15_1_x *info)
 {
-#ifdef CONFIG_SCHED_BOOK
-	struct mask_info *book = &book_info;
-	struct cpuid cpu_id;
-#else
-	struct mask_info *book = NULL;
-#endif
 	struct mask_info *core = &core_info;
+	struct mask_info *book = &book_info;
 	union topology_entry *tle, *end;
-	int z10 = 0;
 
-#ifdef CONFIG_SCHED_BOOK
-	get_cpu_id(&cpu_id);
-	z10 = cpu_id.machine == 0x2097 || cpu_id.machine == 0x2098;
-#endif
-	spin_lock_irq(&topology_lock);
-	clear_masks();
 	tle = info->tle;
 	end = (union topology_entry *)((unsigned long)info + info->length);
 	while (tle < end) {
-#ifdef CONFIG_SCHED_BOOK
-		if (z10) {
-			switch (tle->nl) {
-			case 1:
-				book = book->next;
-				book->id = tle->container.id;
-				break;
-			case 0:
-				core = add_cpus_to_mask(&tle->cpu, book, core, z10);
-				break;
-			default:
-				clear_masks();
-				goto out;
-			}
-			tle = next_tle(tle);
-			continue;
-		}
-#endif
 		switch (tle->nl) {
-#ifdef CONFIG_SCHED_BOOK
 		case 2:
 			book = book->next;
 			book->id = tle->container.id;
 			break;
-#endif
 		case 1:
 			core = core->next;
 			core->id = tle->container.id;
 			break;
 		case 0:
-			add_cpus_to_mask(&tle->cpu, book, core, z10);
+			add_cpus_to_mask(&tle->cpu, book, core, 0);
 			break;
 		default:
 			clear_masks();
-			goto out;
+			return;
 		}
 		tle = next_tle(tle);
 	}
-out:
+}
+
+static void __tl_to_cores_z10(struct sysinfo_15_1_x *info)
+{
+	struct mask_info *core = &core_info;
+	struct mask_info *book = &book_info;
+	union topology_entry *tle, *end;
+
+	tle = info->tle;
+	end = (union topology_entry *)((unsigned long)info + info->length);
+	while (tle < end) {
+		switch (tle->nl) {
+		case 1:
+			book = book->next;
+			book->id = tle->container.id;
+			break;
+		case 0:
+			core = add_cpus_to_mask(&tle->cpu, book, core, 1);
+			break;
+		default:
+			clear_masks();
+			return;
+		}
+		tle = next_tle(tle);
+	}
+}
+
+static void tl_to_cores(struct sysinfo_15_1_x *info)
+{
+	struct cpuid cpu_id;
+
+	get_cpu_id(&cpu_id);
+	spin_lock_irq(&topology_lock);
+	clear_masks();
+	switch (cpu_id.machine) {
+	case 0x2097:
+	case 0x2098:
+		__tl_to_cores_z10(info);
+		break;
+	default:
+		__tl_to_cores_generic(info);
+	}
 	spin_unlock_irq(&topology_lock);
 }
 
@@ -196,7 +201,7 @@ static void topology_update_polarization_simple(void)
 
 	mutex_lock(&smp_cpu_state_mutex);
 	for_each_possible_cpu(cpu)
-		smp_cpu_polarization[cpu] = POLARIZATION_HRZ;
+		cpu_set_polarization(cpu, POLARIZATION_HRZ);
 	mutex_unlock(&smp_cpu_state_mutex);
 }
 
@@ -215,8 +220,7 @@ static int ptf(unsigned long fc)
 
 int topology_set_cpu_management(int fc)
 {
-	int cpu;
-	int rc;
+	int cpu, rc;
 
 	if (!MACHINE_HAS_TOPOLOGY)
 		return -EOPNOTSUPP;
@@ -227,7 +231,7 @@ int topology_set_cpu_management(int fc)
 	if (rc)
 		return -EBUSY;
 	for_each_possible_cpu(cpu)
-		smp_cpu_polarization[cpu] = POLARIZATION_UNKNWN;
+		cpu_set_polarization(cpu, POLARIZATION_UNKNOWN);
 	return rc;
 }
 
@@ -239,22 +243,18 @@ static void update_cpu_core_map(void)
 	spin_lock_irqsave(&topology_lock, flags);
 	for_each_possible_cpu(cpu) {
 		cpu_core_map[cpu] = cpu_group_map(&core_info, cpu);
-#ifdef CONFIG_SCHED_BOOK
 		cpu_book_map[cpu] = cpu_group_map(&book_info, cpu);
-#endif
 	}
 	spin_unlock_irqrestore(&topology_lock, flags);
 }
 
 void store_topology(struct sysinfo_15_1_x *info)
 {
-#ifdef CONFIG_SCHED_BOOK
 	int rc;
 
 	rc = stsi(info, 15, 1, 3);
 	if (rc != -ENOSYS)
 		return;
-#endif
 	stsi(info, 15, 1, 2);
 }
 
@@ -296,12 +296,30 @@ static void topology_timer_fn(unsigned long ignored)
 	set_topology_timer();
 }
 
+static struct timer_list topology_timer =
+	TIMER_DEFERRED_INITIALIZER(topology_timer_fn, 0, 0);
+
+static atomic_t topology_poll = ATOMIC_INIT(0);
+
 static void set_topology_timer(void)
 {
-	topology_timer.function = topology_timer_fn;
-	topology_timer.data = 0;
-	topology_timer.expires = jiffies + 60 * HZ;
-	add_timer(&topology_timer);
+	if (atomic_add_unless(&topology_poll, -1, 0))
+		mod_timer(&topology_timer, jiffies + HZ / 10);
+	else
+		mod_timer(&topology_timer, jiffies + HZ * 60);
+}
+
+void topology_expect_change(void)
+{
+	if (!MACHINE_HAS_TOPOLOGY)
+		return;
+	/* This is racy, but it doesn't matter since it is just a heuristic.
+	 * Worst case is that we poll in a higher frequency for a bit longer.
+	 */
+	if (atomic_read(&topology_poll) > 60)
+		return;
+	atomic_add(60, &topology_poll);
+	set_topology_timer();
 }
 
 static int __init early_parse_topology(char *p)
@@ -313,23 +331,6 @@ static int __init early_parse_topology(char *p)
 }
 early_param("topology", early_parse_topology);
 
-static int __init init_topology_update(void)
-{
-	int rc;
-
-	rc = 0;
-	if (!MACHINE_HAS_TOPOLOGY) {
-		topology_update_polarization_simple();
-		goto out;
-	}
-	init_timer_deferrable(&topology_timer);
-	set_topology_timer();
-out:
-	update_cpu_core_map();
-	return rc;
-}
-__initcall(init_topology_update);
-
 static void __init alloc_masks(struct sysinfo_15_1_x *info,
 			       struct mask_info *mask, int offset)
 {
@@ -357,10 +358,108 @@ void __init s390_init_cpu_topology(void)
 	store_topology(info);
 	pr_info("The CPU configuration topology of the machine is:");
 	for (i = 0; i < TOPOLOGY_NR_MAG; i++)
-		printk(" %d", info->mag[i]);
-	printk(" / %d\n", info->mnest);
+		printk(KERN_CONT " %d", info->mag[i]);
+	printk(KERN_CONT " / %d\n", info->mnest);
 	alloc_masks(info, &core_info, 1);
-#ifdef CONFIG_SCHED_BOOK
 	alloc_masks(info, &book_info, 2);
-#endif
 }
+
+static int cpu_management;
+
+static ssize_t dispatching_show(struct device *dev,
+				struct device_attribute *attr,
+				char *buf)
+{
+	ssize_t count;
+
+	mutex_lock(&smp_cpu_state_mutex);
+	count = sprintf(buf, "%d\n", cpu_management);
+	mutex_unlock(&smp_cpu_state_mutex);
+	return count;
+}
+
+static ssize_t dispatching_store(struct device *dev,
+				 struct device_attribute *attr,
+				 const char *buf,
+				 size_t count)
+{
+	int val, rc;
+	char delim;
+
+	if (sscanf(buf, "%d %c", &val, &delim) != 1)
+		return -EINVAL;
+	if (val != 0 && val != 1)
+		return -EINVAL;
+	rc = 0;
+	get_online_cpus();
+	mutex_lock(&smp_cpu_state_mutex);
+	if (cpu_management == val)
+		goto out;
+	rc = topology_set_cpu_management(val);
+	if (rc)
+		goto out;
+	cpu_management = val;
+	topology_expect_change();
+out:
+	mutex_unlock(&smp_cpu_state_mutex);
+	put_online_cpus();
+	return rc ? rc : count;
+}
+static DEVICE_ATTR(dispatching, 0644, dispatching_show,
+			 dispatching_store);
+
+static ssize_t cpu_polarization_show(struct device *dev,
+				     struct device_attribute *attr, char *buf)
+{
+	int cpu = dev->id;
+	ssize_t count;
+
+	mutex_lock(&smp_cpu_state_mutex);
+	switch (cpu_read_polarization(cpu)) {
+	case POLARIZATION_HRZ:
+		count = sprintf(buf, "horizontal\n");
+		break;
+	case POLARIZATION_VL:
+		count = sprintf(buf, "vertical:low\n");
+		break;
+	case POLARIZATION_VM:
+		count = sprintf(buf, "vertical:medium\n");
+		break;
+	case POLARIZATION_VH:
+		count = sprintf(buf, "vertical:high\n");
+		break;
+	default:
+		count = sprintf(buf, "unknown\n");
+		break;
+	}
+	mutex_unlock(&smp_cpu_state_mutex);
+	return count;
+}
+static DEVICE_ATTR(polarization, 0444, cpu_polarization_show, NULL);
+
+static struct attribute *topology_cpu_attrs[] = {
+	&dev_attr_polarization.attr,
+	NULL,
+};
+
+static struct attribute_group topology_cpu_attr_group = {
+	.attrs = topology_cpu_attrs,
+};
+
+int topology_cpu_init(struct cpu *cpu)
+{
+	return sysfs_create_group(&cpu->dev.kobj, &topology_cpu_attr_group);
+}
+
+static int __init topology_init(void)
+{
+	if (!MACHINE_HAS_TOPOLOGY) {
+		topology_update_polarization_simple();
+		goto out;
+	}
+	set_topology_timer();
+out:
+	update_cpu_core_map();
+	return device_create_file(cpu_subsys.dev_root, &dev_attr_dispatching);
+}
+device_initcall(topology_init);
diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c
index a9807dd86276..5ce3750b181f 100644
--- a/arch/s390/kernel/traps.c
+++ b/arch/s390/kernel/traps.c
@@ -43,9 +43,9 @@
 #include <asm/debug.h>
 #include "entry.h"
 
-void (*pgm_check_table[128])(struct pt_regs *, long, unsigned long);
+void (*pgm_check_table[128])(struct pt_regs *regs);
 
-int show_unhandled_signals;
+int show_unhandled_signals = 1;
 
 #define stack_pointer ({ void **sp; asm("la %0,0(15)" : "=&d" (sp)); sp; })
 
@@ -234,7 +234,7 @@ void show_regs(struct pt_regs *regs)
 
 static DEFINE_SPINLOCK(die_lock);
 
-void die(const char * str, struct pt_regs * regs, long err)
+void die(struct pt_regs *regs, const char *str)
 {
 	static int die_counter;
 
@@ -243,7 +243,7 @@ void die(const char * str, struct pt_regs * regs, long err)
 	console_verbose();
 	spin_lock_irq(&die_lock);
 	bust_spinlocks(1);
-	printk("%s: %04lx [#%d] ", str, err & 0xffff, ++die_counter);
+	printk("%s: %04x [#%d] ", str, regs->int_code & 0xffff, ++die_counter);
 #ifdef CONFIG_PREEMPT
 	printk("PREEMPT ");
 #endif
@@ -254,7 +254,7 @@ void die(const char * str, struct pt_regs * regs, long err)
 	printk("DEBUG_PAGEALLOC");
 #endif
 	printk("\n");
-	notify_die(DIE_OOPS, str, regs, err, current->thread.trap_no, SIGSEGV);
+	notify_die(DIE_OOPS, str, regs, 0, regs->int_code & 0xffff, SIGSEGV);
 	show_regs(regs);
 	bust_spinlocks(0);
 	add_taint(TAINT_DIE);
@@ -267,8 +267,7 @@ void die(const char * str, struct pt_regs * regs, long err)
 	do_exit(SIGSEGV);
 }
 
-static void inline report_user_fault(struct pt_regs *regs, long int_code,
-				     int signr)
+static inline void report_user_fault(struct pt_regs *regs, int signr)
 {
 	if ((task_pid_nr(current) > 1) && !show_unhandled_signals)
 		return;
@@ -276,7 +275,7 @@ static void inline report_user_fault(struct pt_regs *regs, long int_code,
 		return;
 	if (!printk_ratelimit())
 		return;
-	printk("User process fault: interruption code 0x%lX ", int_code);
+	printk("User process fault: interruption code 0x%X ", regs->int_code);
 	print_vma_addr("in ", regs->psw.addr & PSW_ADDR_INSN);
 	printk("\n");
 	show_regs(regs);
@@ -287,19 +286,28 @@ int is_valid_bugaddr(unsigned long addr)
 	return 1;
 }
 
-static inline void __kprobes do_trap(long pgm_int_code, int signr, char *str,
-				     struct pt_regs *regs, siginfo_t *info)
+static inline void __user *get_psw_address(struct pt_regs *regs)
 {
-	if (notify_die(DIE_TRAP, str, regs, pgm_int_code,
-		       pgm_int_code, signr) == NOTIFY_STOP)
+	return (void __user *)
+		((regs->psw.addr - (regs->int_code >> 16)) & PSW_ADDR_INSN);
+}
+
+static void __kprobes do_trap(struct pt_regs *regs,
+			      int si_signo, int si_code, char *str)
+{
+	siginfo_t info;
+
+	if (notify_die(DIE_TRAP, str, regs, 0,
+		       regs->int_code, si_signo) == NOTIFY_STOP)
 		return;
 
         if (regs->psw.mask & PSW_MASK_PSTATE) {
-                struct task_struct *tsk = current;
-
-		tsk->thread.trap_no = pgm_int_code & 0xffff;
-		force_sig_info(signr, info, tsk);
-		report_user_fault(regs, pgm_int_code, signr);
+		info.si_signo = si_signo;
+		info.si_errno = 0;
+		info.si_code = si_code;
+		info.si_addr = get_psw_address(regs);
+		force_sig_info(si_signo, &info, current);
+		report_user_fault(regs, si_signo);
         } else {
                 const struct exception_table_entry *fixup;
                 fixup = search_exception_tables(regs->psw.addr & PSW_ADDR_INSN);
@@ -311,18 +319,11 @@ static inline void __kprobes do_trap(long pgm_int_code, int signr, char *str,
 			btt = report_bug(regs->psw.addr & PSW_ADDR_INSN, regs);
 			if (btt == BUG_TRAP_TYPE_WARN)
 				return;
-			die(str, regs, pgm_int_code);
+			die(regs, str);
 		}
         }
 }
 
-static inline void __user *get_psw_address(struct pt_regs *regs,
-					   long pgm_int_code)
-{
-	return (void __user *)
-		((regs->psw.addr - (pgm_int_code >> 16)) & PSW_ADDR_INSN);
-}
-
 void __kprobes do_per_trap(struct pt_regs *regs)
 {
 	siginfo_t info;
@@ -339,26 +340,19 @@ void __kprobes do_per_trap(struct pt_regs *regs)
 	force_sig_info(SIGTRAP, &info, current);
 }
 
-static void default_trap_handler(struct pt_regs *regs, long pgm_int_code,
-				 unsigned long trans_exc_code)
+static void default_trap_handler(struct pt_regs *regs)
 {
         if (regs->psw.mask & PSW_MASK_PSTATE) {
-		report_user_fault(regs, pgm_int_code, SIGSEGV);
+		report_user_fault(regs, SIGSEGV);
 		do_exit(SIGSEGV);
 	} else
-		die("Unknown program exception", regs, pgm_int_code);
+		die(regs, "Unknown program exception");
 }
 
 #define DO_ERROR_INFO(name, signr, sicode, str) \
-static void name(struct pt_regs *regs, long pgm_int_code, \
-		 unsigned long trans_exc_code) \
+static void name(struct pt_regs *regs) \
 { \
-        siginfo_t info; \
-        info.si_signo = signr; \
-        info.si_errno = 0; \
-        info.si_code = sicode; \
-	info.si_addr = get_psw_address(regs, pgm_int_code); \
-	do_trap(pgm_int_code, signr, str, regs, &info);	    \
+	do_trap(regs, signr, sicode, str); \
 }
 
 DO_ERROR_INFO(addressing_exception, SIGILL, ILL_ILLADR,
@@ -388,42 +382,34 @@ DO_ERROR_INFO(special_op_exception, SIGILL, ILL_ILLOPN,
 DO_ERROR_INFO(translation_exception, SIGILL, ILL_ILLOPN,
 	      "translation exception")
 
-static inline void do_fp_trap(struct pt_regs *regs, void __user *location,
-			      int fpc, long pgm_int_code)
+static inline void do_fp_trap(struct pt_regs *regs, int fpc)
 {
-	siginfo_t si;
-
-	si.si_signo = SIGFPE;
-	si.si_errno = 0;
-	si.si_addr = location;
-	si.si_code = 0;
+	int si_code = 0;
 	/* FPC[2] is Data Exception Code */
 	if ((fpc & 0x00000300) == 0) {
 		/* bits 6 and 7 of DXC are 0 iff IEEE exception */
 		if (fpc & 0x8000) /* invalid fp operation */
-			si.si_code = FPE_FLTINV;
+			si_code = FPE_FLTINV;
 		else if (fpc & 0x4000) /* div by 0 */
-			si.si_code = FPE_FLTDIV;
+			si_code = FPE_FLTDIV;
 		else if (fpc & 0x2000) /* overflow */
-			si.si_code = FPE_FLTOVF;
+			si_code = FPE_FLTOVF;
 		else if (fpc & 0x1000) /* underflow */
-			si.si_code = FPE_FLTUND;
+			si_code = FPE_FLTUND;
 		else if (fpc & 0x0800) /* inexact */
-			si.si_code = FPE_FLTRES;
+			si_code = FPE_FLTRES;
 	}
-	do_trap(pgm_int_code, SIGFPE,
-		"floating point exception", regs, &si);
+	do_trap(regs, SIGFPE, si_code, "floating point exception");
 }
 
-static void __kprobes illegal_op(struct pt_regs *regs, long pgm_int_code,
-				 unsigned long trans_exc_code)
+static void __kprobes illegal_op(struct pt_regs *regs)
 {
 	siginfo_t info;
         __u8 opcode[6];
 	__u16 __user *location;
 	int signal = 0;
 
-	location = get_psw_address(regs, pgm_int_code);
+	location = get_psw_address(regs);
 
 	if (regs->psw.mask & PSW_MASK_PSTATE) {
 		if (get_user(*((__u16 *) opcode), (__u16 __user *) location))
@@ -467,44 +453,31 @@ static void __kprobes illegal_op(struct pt_regs *regs, long pgm_int_code,
 		 * If we get an illegal op in kernel mode, send it through the
 		 * kprobes notifier. If kprobes doesn't pick it up, SIGILL
 		 */
-		if (notify_die(DIE_BPT, "bpt", regs, pgm_int_code,
+		if (notify_die(DIE_BPT, "bpt", regs, 0,
 			       3, SIGTRAP) != NOTIFY_STOP)
 			signal = SIGILL;
 	}
 
 #ifdef CONFIG_MATHEMU
         if (signal == SIGFPE)
-		do_fp_trap(regs, location,
-			   current->thread.fp_regs.fpc, pgm_int_code);
-        else if (signal == SIGSEGV) {
-		info.si_signo = signal;
-		info.si_errno = 0;
-		info.si_code = SEGV_MAPERR;
-		info.si_addr = (void __user *) location;
-		do_trap(pgm_int_code, signal,
-			"user address fault", regs, &info);
-	} else
+		do_fp_trap(regs, current->thread.fp_regs.fpc);
+	else if (signal == SIGSEGV)
+		do_trap(regs, signal, SEGV_MAPERR, "user address fault");
+	else
 #endif
-        if (signal) {
-		info.si_signo = signal;
-		info.si_errno = 0;
-		info.si_code = ILL_ILLOPC;
-		info.si_addr = (void __user *) location;
-		do_trap(pgm_int_code, signal,
-			"illegal operation", regs, &info);
-	}
+	if (signal)
+		do_trap(regs, signal, ILL_ILLOPC, "illegal operation");
 }
 
 
 #ifdef CONFIG_MATHEMU
-void specification_exception(struct pt_regs *regs, long pgm_int_code,
-			     unsigned long trans_exc_code)
+void specification_exception(struct pt_regs *regs)
 {
         __u8 opcode[6];
 	__u16 __user *location = NULL;
 	int signal = 0;
 
-	location = (__u16 __user *) get_psw_address(regs, pgm_int_code);
+	location = (__u16 __user *) get_psw_address(regs);
 
         if (regs->psw.mask & PSW_MASK_PSTATE) {
 		get_user(*((__u16 *) opcode), location);
@@ -539,30 +512,21 @@ void specification_exception(struct pt_regs *regs, long pgm_int_code,
 		signal = SIGILL;
 
         if (signal == SIGFPE)
-		do_fp_trap(regs, location,
-			   current->thread.fp_regs.fpc, pgm_int_code);
-        else if (signal) {
-		siginfo_t info;
-		info.si_signo = signal;
-		info.si_errno = 0;
-		info.si_code = ILL_ILLOPN;
-		info.si_addr = location;
-		do_trap(pgm_int_code, signal,
-			"specification exception", regs, &info);
-	}
+		do_fp_trap(regs, current->thread.fp_regs.fpc);
+	else if (signal)
+		do_trap(regs, signal, ILL_ILLOPN, "specification exception");
 }
 #else
 DO_ERROR_INFO(specification_exception, SIGILL, ILL_ILLOPN,
 	      "specification exception");
 #endif
 
-static void data_exception(struct pt_regs *regs, long pgm_int_code,
-			   unsigned long trans_exc_code)
+static void data_exception(struct pt_regs *regs)
 {
 	__u16 __user *location;
 	int signal = 0;
 
-	location = get_psw_address(regs, pgm_int_code);
+	location = get_psw_address(regs);
 
 	if (MACHINE_HAS_IEEE)
 		asm volatile("stfpc %0" : "=m" (current->thread.fp_regs.fpc));
@@ -627,32 +591,18 @@ static void data_exception(struct pt_regs *regs, long pgm_int_code,
 	else
 		signal = SIGILL;
         if (signal == SIGFPE)
-		do_fp_trap(regs, location,
-			   current->thread.fp_regs.fpc, pgm_int_code);
-        else if (signal) {
-		siginfo_t info;
-		info.si_signo = signal;
-		info.si_errno = 0;
-		info.si_code = ILL_ILLOPN;
-		info.si_addr = location;
-		do_trap(pgm_int_code, signal, "data exception", regs, &info);
-	}
+		do_fp_trap(regs, current->thread.fp_regs.fpc);
+	else if (signal)
+		do_trap(regs, signal, ILL_ILLOPN, "data exception");
 }
 
-static void space_switch_exception(struct pt_regs *regs, long pgm_int_code,
-				   unsigned long trans_exc_code)
+static void space_switch_exception(struct pt_regs *regs)
 {
-        siginfo_t info;
-
 	/* Set user psw back to home space mode. */
 	if (regs->psw.mask & PSW_MASK_PSTATE)
 		regs->psw.mask |= PSW_ASC_HOME;
 	/* Send SIGILL. */
-        info.si_signo = SIGILL;
-        info.si_errno = 0;
-        info.si_code = ILL_PRVOPC;
-	info.si_addr = get_psw_address(regs, pgm_int_code);
-	do_trap(pgm_int_code, SIGILL, "space switch event", regs, &info);
+	do_trap(regs, SIGILL, ILL_PRVOPC, "space switch event");
 }
 
 void __kprobes kernel_stack_overflow(struct pt_regs * regs)
diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c
index a9a301866b3c..354dd39073ef 100644
--- a/arch/s390/mm/fault.c
+++ b/arch/s390/mm/fault.c
@@ -125,8 +125,7 @@ static inline int user_space_fault(unsigned long trans_exc_code)
 	return trans_exc_code != 3;
 }
 
-static inline void report_user_fault(struct pt_regs *regs, long int_code,
-				     int signr, unsigned long address)
+static inline void report_user_fault(struct pt_regs *regs, long signr)
 {
 	if ((task_pid_nr(current) > 1) && !show_unhandled_signals)
 		return;
@@ -134,10 +133,12 @@ static inline void report_user_fault(struct pt_regs *regs, long int_code,
 		return;
 	if (!printk_ratelimit())
 		return;
-	printk("User process fault: interruption code 0x%lX ", int_code);
+	printk(KERN_ALERT "User process fault: interruption code 0x%X ",
+	       regs->int_code);
 	print_vma_addr(KERN_CONT "in ", regs->psw.addr & PSW_ADDR_INSN);
-	printk("\n");
-	printk("failing address: %lX\n", address);
+	printk(KERN_CONT "\n");
+	printk(KERN_ALERT "failing address: %lX\n",
+	       regs->int_parm_long & __FAIL_ADDR_MASK);
 	show_regs(regs);
 }
 
@@ -145,24 +146,18 @@ static inline void report_user_fault(struct pt_regs *regs, long int_code,
  * Send SIGSEGV to task.  This is an external routine
  * to keep the stack usage of do_page_fault small.
  */
-static noinline void do_sigsegv(struct pt_regs *regs, long int_code,
-				int si_code, unsigned long trans_exc_code)
+static noinline void do_sigsegv(struct pt_regs *regs, int si_code)
 {
 	struct siginfo si;
-	unsigned long address;
 
-	address = trans_exc_code & __FAIL_ADDR_MASK;
-	current->thread.prot_addr = address;
-	current->thread.trap_no = int_code;
-	report_user_fault(regs, int_code, SIGSEGV, address);
+	report_user_fault(regs, SIGSEGV);
 	si.si_signo = SIGSEGV;
 	si.si_code = si_code;
-	si.si_addr = (void __user *) address;
+	si.si_addr = (void __user *)(regs->int_parm_long & __FAIL_ADDR_MASK);
 	force_sig_info(SIGSEGV, &si, current);
 }
 
-static noinline void do_no_context(struct pt_regs *regs, long int_code,
-				   unsigned long trans_exc_code)
+static noinline void do_no_context(struct pt_regs *regs)
 {
 	const struct exception_table_entry *fixup;
 	unsigned long address;
@@ -178,55 +173,48 @@ static noinline void do_no_context(struct pt_regs *regs, long int_code,
 	 * Oops. The kernel tried to access some bad page. We'll have to
 	 * terminate things with extreme prejudice.
 	 */
-	address = trans_exc_code & __FAIL_ADDR_MASK;
-	if (!user_space_fault(trans_exc_code))
+	address = regs->int_parm_long & __FAIL_ADDR_MASK;
+	if (!user_space_fault(regs->int_parm_long))
 		printk(KERN_ALERT "Unable to handle kernel pointer dereference"
 		       " at virtual kernel address %p\n", (void *)address);
 	else
 		printk(KERN_ALERT "Unable to handle kernel paging request"
 		       " at virtual user address %p\n", (void *)address);
 
-	die("Oops", regs, int_code);
+	die(regs, "Oops");
 	do_exit(SIGKILL);
 }
 
-static noinline void do_low_address(struct pt_regs *regs, long int_code,
-				    unsigned long trans_exc_code)
+static noinline void do_low_address(struct pt_regs *regs)
 {
 	/* Low-address protection hit in kernel mode means
 	   NULL pointer write access in kernel mode.  */
 	if (regs->psw.mask & PSW_MASK_PSTATE) {
 		/* Low-address protection hit in user mode 'cannot happen'. */
-		die ("Low-address protection", regs, int_code);
+		die (regs, "Low-address protection");
 		do_exit(SIGKILL);
 	}
 
-	do_no_context(regs, int_code, trans_exc_code);
+	do_no_context(regs);
 }
 
-static noinline void do_sigbus(struct pt_regs *regs, long int_code,
-			       unsigned long trans_exc_code)
+static noinline void do_sigbus(struct pt_regs *regs)
 {
 	struct task_struct *tsk = current;
-	unsigned long address;
 	struct siginfo si;
 
 	/*
 	 * Send a sigbus, regardless of whether we were in kernel
 	 * or user mode.
 	 */
-	address = trans_exc_code & __FAIL_ADDR_MASK;
-	tsk->thread.prot_addr = address;
-	tsk->thread.trap_no = int_code;
 	si.si_signo = SIGBUS;
 	si.si_errno = 0;
 	si.si_code = BUS_ADRERR;
-	si.si_addr = (void __user *) address;
+	si.si_addr = (void __user *)(regs->int_parm_long & __FAIL_ADDR_MASK);
 	force_sig_info(SIGBUS, &si, tsk);
 }
 
-static noinline void do_fault_error(struct pt_regs *regs, long int_code,
-				    unsigned long trans_exc_code, int fault)
+static noinline void do_fault_error(struct pt_regs *regs, int fault)
 {
 	int si_code;
 
@@ -238,24 +226,24 @@ static noinline void do_fault_error(struct pt_regs *regs, long int_code,
 			/* User mode accesses just cause a SIGSEGV */
 			si_code = (fault == VM_FAULT_BADMAP) ?
 				SEGV_MAPERR : SEGV_ACCERR;
-			do_sigsegv(regs, int_code, si_code, trans_exc_code);
+			do_sigsegv(regs, si_code);
 			return;
 		}
 	case VM_FAULT_BADCONTEXT:
-		do_no_context(regs, int_code, trans_exc_code);
+		do_no_context(regs);
 		break;
 	default: /* fault & VM_FAULT_ERROR */
 		if (fault & VM_FAULT_OOM) {
 			if (!(regs->psw.mask & PSW_MASK_PSTATE))
-				do_no_context(regs, int_code, trans_exc_code);
+				do_no_context(regs);
 			else
 				pagefault_out_of_memory();
 		} else if (fault & VM_FAULT_SIGBUS) {
 			/* Kernel mode? Handle exceptions or die */
 			if (!(regs->psw.mask & PSW_MASK_PSTATE))
-				do_no_context(regs, int_code, trans_exc_code);
+				do_no_context(regs);
 			else
-				do_sigbus(regs, int_code, trans_exc_code);
+				do_sigbus(regs);
 		} else
 			BUG();
 		break;
@@ -273,12 +261,12 @@ static noinline void do_fault_error(struct pt_regs *regs, long int_code,
  *   11       Page translation     ->  Not present       (nullification)
  *   3b       Region third trans.  ->  Not present       (nullification)
  */
-static inline int do_exception(struct pt_regs *regs, int access,
-			       unsigned long trans_exc_code)
+static inline int do_exception(struct pt_regs *regs, int access)
 {
 	struct task_struct *tsk;
 	struct mm_struct *mm;
 	struct vm_area_struct *vma;
+	unsigned long trans_exc_code;
 	unsigned long address;
 	unsigned int flags;
 	int fault;
@@ -288,6 +276,7 @@ static inline int do_exception(struct pt_regs *regs, int access,
 
 	tsk = current;
 	mm = tsk->mm;
+	trans_exc_code = regs->int_parm_long;
 
 	/*
 	 * Verify that the fault happened in user space, that
@@ -387,45 +376,46 @@ out:
 	return fault;
 }
 
-void __kprobes do_protection_exception(struct pt_regs *regs, long pgm_int_code,
-				       unsigned long trans_exc_code)
+void __kprobes do_protection_exception(struct pt_regs *regs)
 {
+	unsigned long trans_exc_code;
 	int fault;
 
+	trans_exc_code = regs->int_parm_long;
 	/* Protection exception is suppressing, decrement psw address. */
-	regs->psw.addr = __rewind_psw(regs->psw, pgm_int_code >> 16);
+	regs->psw.addr = __rewind_psw(regs->psw, regs->int_code >> 16);
 	/*
 	 * Check for low-address protection.  This needs to be treated
 	 * as a special case because the translation exception code
 	 * field is not guaranteed to contain valid data in this case.
 	 */
 	if (unlikely(!(trans_exc_code & 4))) {
-		do_low_address(regs, pgm_int_code, trans_exc_code);
+		do_low_address(regs);
 		return;
 	}
-	fault = do_exception(regs, VM_WRITE, trans_exc_code);
+	fault = do_exception(regs, VM_WRITE);
 	if (unlikely(fault))
-		do_fault_error(regs, 4, trans_exc_code, fault);
+		do_fault_error(regs, fault);
 }
 
-void __kprobes do_dat_exception(struct pt_regs *regs, long pgm_int_code,
-				unsigned long trans_exc_code)
+void __kprobes do_dat_exception(struct pt_regs *regs)
 {
 	int access, fault;
 
 	access = VM_READ | VM_EXEC | VM_WRITE;
-	fault = do_exception(regs, access, trans_exc_code);
+	fault = do_exception(regs, access);
 	if (unlikely(fault))
-		do_fault_error(regs, pgm_int_code & 255, trans_exc_code, fault);
+		do_fault_error(regs, fault);
 }
 
 #ifdef CONFIG_64BIT
-void __kprobes do_asce_exception(struct pt_regs *regs, long pgm_int_code,
-				 unsigned long trans_exc_code)
+void __kprobes do_asce_exception(struct pt_regs *regs)
 {
 	struct mm_struct *mm = current->mm;
 	struct vm_area_struct *vma;
+	unsigned long trans_exc_code;
 
+	trans_exc_code = regs->int_parm_long;
 	if (unlikely(!user_space_fault(trans_exc_code) || in_atomic() || !mm))
 		goto no_context;
 
@@ -440,12 +430,12 @@ void __kprobes do_asce_exception(struct pt_regs *regs, long pgm_int_code,
 
 	/* User mode accesses just cause a SIGSEGV */
 	if (regs->psw.mask & PSW_MASK_PSTATE) {
-		do_sigsegv(regs, pgm_int_code, SEGV_MAPERR, trans_exc_code);
+		do_sigsegv(regs, SEGV_MAPERR);
 		return;
 	}
 
 no_context:
-	do_no_context(regs, pgm_int_code, trans_exc_code);
+	do_no_context(regs);
 }
 #endif
 
@@ -459,14 +449,15 @@ int __handle_fault(unsigned long uaddr, unsigned long pgm_int_code, int write)
 		regs.psw.mask |= PSW_MASK_IO | PSW_MASK_EXT;
 	regs.psw.addr = (unsigned long) __builtin_return_address(0);
 	regs.psw.addr |= PSW_ADDR_AMODE;
-	uaddr &= PAGE_MASK;
+	regs.int_code = pgm_int_code;
+	regs.int_parm_long = (uaddr & PAGE_MASK) | 2;
 	access = write ? VM_WRITE : VM_READ;
-	fault = do_exception(&regs, access, uaddr | 2);
+	fault = do_exception(&regs, access);
 	if (unlikely(fault)) {
 		if (fault & VM_FAULT_OOM)
 			return -EFAULT;
 		else if (fault & VM_FAULT_SIGBUS)
-			do_sigbus(&regs, pgm_int_code, uaddr);
+			do_sigbus(&regs);
 	}
 	return fault ? -EFAULT : 0;
 }
@@ -509,7 +500,7 @@ int pfault_init(void)
 		.reserved = __PF_RES_FIELD };
         int rc;
 
-	if (!MACHINE_IS_VM || pfault_disable)
+	if (pfault_disable)
 		return -1;
 	asm volatile(
 		"	diag	%1,%0,0x258\n"
@@ -530,7 +521,7 @@ void pfault_fini(void)
 		.refversn = 2,
 	};
 
-	if (!MACHINE_IS_VM || pfault_disable)
+	if (pfault_disable)
 		return;
 	asm volatile(
 		"	diag	%0,0,0x258\n"
@@ -643,8 +634,6 @@ static int __init pfault_irq_init(void)
 {
 	int rc;
 
-	if (!MACHINE_IS_VM)
-		return 0;
 	rc = register_external_interrupt(0x2603, pfault_interrupt);
 	if (rc)
 		goto out_extint;
diff --git a/arch/s390/mm/init.c b/arch/s390/mm/init.c
index d4b9fb4d0042..5d633019d8f3 100644
--- a/arch/s390/mm/init.c
+++ b/arch/s390/mm/init.c
@@ -93,18 +93,22 @@ static unsigned long setup_zero_pages(void)
 void __init paging_init(void)
 {
 	unsigned long max_zone_pfns[MAX_NR_ZONES];
-	unsigned long pgd_type;
+	unsigned long pgd_type, asce_bits;
 
 	init_mm.pgd = swapper_pg_dir;
-	S390_lowcore.kernel_asce = __pa(init_mm.pgd) & PAGE_MASK;
 #ifdef CONFIG_64BIT
-	/* A three level page table (4TB) is enough for the kernel space. */
-	S390_lowcore.kernel_asce |= _ASCE_TYPE_REGION3 | _ASCE_TABLE_LENGTH;
-	pgd_type = _REGION3_ENTRY_EMPTY;
+	if (VMALLOC_END > (1UL << 42)) {
+		asce_bits = _ASCE_TYPE_REGION2 | _ASCE_TABLE_LENGTH;
+		pgd_type = _REGION2_ENTRY_EMPTY;
+	} else {
+		asce_bits = _ASCE_TYPE_REGION3 | _ASCE_TABLE_LENGTH;
+		pgd_type = _REGION3_ENTRY_EMPTY;
+	}
 #else
-	S390_lowcore.kernel_asce |= _ASCE_TABLE_LENGTH;
+	asce_bits = _ASCE_TABLE_LENGTH;
 	pgd_type = _SEGMENT_ENTRY_EMPTY;
 #endif
+	S390_lowcore.kernel_asce = (__pa(init_mm.pgd) & PAGE_MASK) | asce_bits;
 	clear_table((unsigned long *) init_mm.pgd, pgd_type,
 		    sizeof(unsigned long)*2048);
 	vmem_map_init();
diff --git a/arch/s390/mm/pgtable.c b/arch/s390/mm/pgtable.c
index 301c84d3b542..9a4d02f64f16 100644
--- a/arch/s390/mm/pgtable.c
+++ b/arch/s390/mm/pgtable.c
@@ -33,17 +33,6 @@
 #define FRAG_MASK	0x03
 #endif
 
-unsigned long VMALLOC_START = VMALLOC_END - VMALLOC_SIZE;
-EXPORT_SYMBOL(VMALLOC_START);
-
-static int __init parse_vmalloc(char *arg)
-{
-	if (!arg)
-		return -EINVAL;
-	VMALLOC_START = (VMALLOC_END - memparse(arg, &arg)) & PAGE_MASK;
-	return 0;
-}
-early_param("vmalloc", parse_vmalloc);
 
 unsigned long *crst_table_alloc(struct mm_struct *mm)
 {
@@ -267,7 +256,10 @@ static int gmap_alloc_table(struct gmap *gmap,
 	struct page *page;
 	unsigned long *new;
 
+	/* since we dont free the gmap table until gmap_free we can unlock */
+	spin_unlock(&gmap->mm->page_table_lock);
 	page = alloc_pages(GFP_KERNEL, ALLOC_ORDER);
+	spin_lock(&gmap->mm->page_table_lock);
 	if (!page)
 		return -ENOMEM;
 	new = (unsigned long *) page_to_phys(page);
diff --git a/arch/score/Kconfig b/arch/score/Kconfig
index 8b0c9464aa9d..3df65d39abc1 100644
--- a/arch/score/Kconfig
+++ b/arch/score/Kconfig
@@ -4,6 +4,7 @@ config SCORE
        def_bool y
        select HAVE_GENERIC_HARDIRQS
        select GENERIC_IRQ_SHOW
+       select GENERIC_IOMAP
        select HAVE_MEMBLOCK
        select HAVE_MEMBLOCK_NODE_MAP
        select ARCH_DISCARD_MEMBLOCK
@@ -36,9 +37,6 @@ endmenu
 config CPU_SCORE7
 	bool
 
-config GENERIC_IOMAP
-	def_bool y
-
 config NO_DMA
 	bool
 	default y
diff --git a/arch/sh/Kconfig b/arch/sh/Kconfig
index 47a2f1c2cb0d..3c8db65c89e5 100644
--- a/arch/sh/Kconfig
+++ b/arch/sh/Kconfig
@@ -85,9 +85,6 @@ config GENERIC_GPIO
 config GENERIC_CALIBRATE_DELAY
 	bool
 
-config GENERIC_IOMAP
-	bool
-
 config GENERIC_CLOCKEVENTS
 	def_bool y
 
@@ -861,6 +858,7 @@ config PCI
 	bool "PCI support"
 	depends on SYS_SUPPORTS_PCI
 	select PCI_DOMAINS
+	select GENERIC_PCI_IOMAP
 	help
 	  Find out whether you have a PCI motherboard. PCI is the name of a
 	  bus system, i.e. the way the CPU talks to the other stuff inside
diff --git a/arch/sh/drivers/pci/pci.c b/arch/sh/drivers/pci/pci.c
index c2691afe8f79..11aaf2fdec84 100644
--- a/arch/sh/drivers/pci/pci.c
+++ b/arch/sh/drivers/pci/pci.c
@@ -393,29 +393,6 @@ static void __iomem *ioport_map_pci(struct pci_dev *dev,
 	return (void __iomem *)(chan->io_map_base + port);
 }
 
-void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
-{
-	resource_size_t start = pci_resource_start(dev, bar);
-	resource_size_t len = pci_resource_len(dev, bar);
-	unsigned long flags = pci_resource_flags(dev, bar);
-
-	if (unlikely(!len || !start))
-		return NULL;
-	if (maxlen && len > maxlen)
-		len = maxlen;
-
-	if (flags & IORESOURCE_IO)
-		return ioport_map_pci(dev, start, len);
-	if (flags & IORESOURCE_MEM) {
-		if (flags & IORESOURCE_CACHEABLE)
-			return ioremap(start, len);
-		return ioremap_nocache(start, len);
-	}
-
-	return NULL;
-}
-EXPORT_SYMBOL(pci_iomap);
-
 void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
 {
 	iounmap(addr);
diff --git a/arch/sh/mm/cache-sh2a.c b/arch/sh/mm/cache-sh2a.c
index 1f51225426a2..ae08cbbfa569 100644
--- a/arch/sh/mm/cache-sh2a.c
+++ b/arch/sh/mm/cache-sh2a.c
@@ -15,35 +15,78 @@
 #include <asm/cacheflush.h>
 #include <asm/io.h>
 
+/*
+ * The maximum number of pages we support up to when doing ranged dcache
+ * flushing. Anything exceeding this will simply flush the dcache in its
+ * entirety.
+ */
+#define MAX_OCACHE_PAGES	32
+#define MAX_ICACHE_PAGES	32
+
+static void sh2a_flush_oc_line(unsigned long v, int way)
+{
+	unsigned long addr = (v & 0x000007f0) | (way << 11);
+	unsigned long data;
+
+	data = __raw_readl(CACHE_OC_ADDRESS_ARRAY | addr);
+	if ((data & CACHE_PHYSADDR_MASK) == (v & CACHE_PHYSADDR_MASK)) {
+		data &= ~SH_CACHE_UPDATED;
+		__raw_writel(data, CACHE_OC_ADDRESS_ARRAY | addr);
+	}
+}
+
+static void sh2a_invalidate_line(unsigned long cache_addr, unsigned long v)
+{
+	/* Set associative bit to hit all ways */
+	unsigned long addr = (v & 0x000007f0) | SH_CACHE_ASSOC;
+	__raw_writel((addr & CACHE_PHYSADDR_MASK), cache_addr | addr);
+}
+
+/*
+ * Write back the dirty D-caches, but not invalidate them.
+ */
 static void sh2a__flush_wback_region(void *start, int size)
 {
+#ifdef CONFIG_CACHE_WRITEBACK
 	unsigned long v;
 	unsigned long begin, end;
 	unsigned long flags;
+	int nr_ways;
 
 	begin = (unsigned long)start & ~(L1_CACHE_BYTES-1);
 	end = ((unsigned long)start + size + L1_CACHE_BYTES-1)
 		& ~(L1_CACHE_BYTES-1);
+	nr_ways = current_cpu_data.dcache.ways;
 
 	local_irq_save(flags);
 	jump_to_uncached();
 
-	for (v = begin; v < end; v+=L1_CACHE_BYTES) {
-		unsigned long addr = CACHE_OC_ADDRESS_ARRAY | (v & 0x000007f0);
+	/* If there are too many pages then flush the entire cache */
+	if (((end - begin) >> PAGE_SHIFT) >= MAX_OCACHE_PAGES) {
+		begin = CACHE_OC_ADDRESS_ARRAY;
+		end = begin + (nr_ways * current_cpu_data.dcache.way_size);
+
+		for (v = begin; v < end; v += L1_CACHE_BYTES) {
+			unsigned long data = __raw_readl(v);
+			if (data & SH_CACHE_UPDATED)
+				__raw_writel(data & ~SH_CACHE_UPDATED, v);
+		}
+	} else {
 		int way;
-		for (way = 0; way < 4; way++) {
-			unsigned long data =  __raw_readl(addr | (way << 11));
-			if ((data & CACHE_PHYSADDR_MASK) == (v & CACHE_PHYSADDR_MASK)) {
-				data &= ~SH_CACHE_UPDATED;
-				__raw_writel(data, addr | (way << 11));
-			}
+		for (way = 0; way < nr_ways; way++) {
+			for (v = begin; v < end; v += L1_CACHE_BYTES)
+				sh2a_flush_oc_line(v, way);
 		}
 	}
 
 	back_to_cached();
 	local_irq_restore(flags);
+#endif
 }
 
+/*
+ * Write back the dirty D-caches and invalidate them.
+ */
 static void sh2a__flush_purge_region(void *start, int size)
 {
 	unsigned long v;
@@ -58,13 +101,22 @@ static void sh2a__flush_purge_region(void *start, int size)
 	jump_to_uncached();
 
 	for (v = begin; v < end; v+=L1_CACHE_BYTES) {
-		__raw_writel((v & CACHE_PHYSADDR_MASK),
-			  CACHE_OC_ADDRESS_ARRAY | (v & 0x000007f0) | 0x00000008);
+#ifdef CONFIG_CACHE_WRITEBACK
+		int way;
+		int nr_ways = current_cpu_data.dcache.ways;
+		for (way = 0; way < nr_ways; way++)
+			sh2a_flush_oc_line(v, way);
+#endif
+		sh2a_invalidate_line(CACHE_OC_ADDRESS_ARRAY, v);
 	}
+
 	back_to_cached();
 	local_irq_restore(flags);
 }
 
+/*
+ * Invalidate the D-caches, but no write back please
+ */
 static void sh2a__flush_invalidate_region(void *start, int size)
 {
 	unsigned long v;
@@ -74,29 +126,25 @@ static void sh2a__flush_invalidate_region(void *start, int size)
 	begin = (unsigned long)start & ~(L1_CACHE_BYTES-1);
 	end = ((unsigned long)start + size + L1_CACHE_BYTES-1)
 		& ~(L1_CACHE_BYTES-1);
+
 	local_irq_save(flags);
 	jump_to_uncached();
 
-#ifdef CONFIG_CACHE_WRITEBACK
-	__raw_writel(__raw_readl(CCR) | CCR_OCACHE_INVALIDATE, CCR);
-	/* I-cache invalidate */
-	for (v = begin; v < end; v+=L1_CACHE_BYTES) {
-		__raw_writel((v & CACHE_PHYSADDR_MASK),
-			  CACHE_IC_ADDRESS_ARRAY | (v & 0x000007f0) | 0x00000008);
-	}
-#else
-	for (v = begin; v < end; v+=L1_CACHE_BYTES) {
-		__raw_writel((v & CACHE_PHYSADDR_MASK),
-			  CACHE_IC_ADDRESS_ARRAY | (v & 0x000007f0) | 0x00000008);
-		__raw_writel((v & CACHE_PHYSADDR_MASK),
-			  CACHE_OC_ADDRESS_ARRAY | (v & 0x000007f0) | 0x00000008);
+	/* If there are too many pages then just blow the cache */
+	if (((end - begin) >> PAGE_SHIFT) >= MAX_OCACHE_PAGES) {
+		__raw_writel(__raw_readl(CCR) | CCR_OCACHE_INVALIDATE, CCR);
+	} else {
+		for (v = begin; v < end; v += L1_CACHE_BYTES)
+			sh2a_invalidate_line(CACHE_OC_ADDRESS_ARRAY, v);
 	}
-#endif
+
 	back_to_cached();
 	local_irq_restore(flags);
 }
 
-/* WBack O-Cache and flush I-Cache */
+/*
+ * Write back the range of D-cache, and purge the I-cache.
+ */
 static void sh2a_flush_icache_range(void *args)
 {
 	struct flusher_data *data = args;
@@ -107,23 +155,20 @@ static void sh2a_flush_icache_range(void *args)
 	start = data->addr1 & ~(L1_CACHE_BYTES-1);
 	end = (data->addr2 + L1_CACHE_BYTES-1) & ~(L1_CACHE_BYTES-1);
 
+#ifdef CONFIG_CACHE_WRITEBACK
+	sh2a__flush_wback_region((void *)start, end-start);
+#endif
+
 	local_irq_save(flags);
 	jump_to_uncached();
 
-	for (v = start; v < end; v+=L1_CACHE_BYTES) {
-		unsigned long addr = (v & 0x000007f0);
-		int way;
-		/* O-Cache writeback */
-		for (way = 0; way < 4; way++) {
-			unsigned long data =  __raw_readl(CACHE_OC_ADDRESS_ARRAY | addr | (way << 11));
-			if ((data & CACHE_PHYSADDR_MASK) == (v & CACHE_PHYSADDR_MASK)) {
-				data &= ~SH_CACHE_UPDATED;
-				__raw_writel(data, CACHE_OC_ADDRESS_ARRAY | addr | (way << 11));
-			}
-		}
-		/* I-Cache invalidate */
-		__raw_writel(addr,
-			  CACHE_IC_ADDRESS_ARRAY | addr | 0x00000008);
+	/* I-Cache invalidate */
+	/* If there are too many pages then just blow the cache */
+	if (((end - start) >> PAGE_SHIFT) >= MAX_ICACHE_PAGES) {
+		__raw_writel(__raw_readl(CCR) | CCR_ICACHE_INVALIDATE, CCR);
+	} else {
+		for (v = start; v < end; v += L1_CACHE_BYTES)
+			sh2a_invalidate_line(CACHE_IC_ADDRESS_ARRAY, v);
 	}
 
 	back_to_cached();
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
index 70ae9d81870e..96657992a72e 100644
--- a/arch/sparc/Kconfig
+++ b/arch/sparc/Kconfig
@@ -28,9 +28,11 @@ config SPARC
 	select HAVE_GENERIC_HARDIRQS
 	select GENERIC_IRQ_SHOW
 	select USE_GENERIC_SMP_HELPERS if SMP
+	select GENERIC_PCI_IOMAP
 
 config SPARC32
 	def_bool !64BIT
+	select GENERIC_ATOMIC64
 
 config SPARC64
 	def_bool 64BIT
@@ -383,9 +385,7 @@ config SCHED_MC
 	  making when dealing with multi-core CPU chips at a cost of slightly
 	  increased overhead in some places. If unsure say N here.
 
-if SPARC64
 source "kernel/Kconfig.preempt"
-endif
 
 config CMDLINE_BOOL
 	bool "Default bootloader kernel arguments"
diff --git a/arch/sparc/include/asm/atomic_32.h b/arch/sparc/include/asm/atomic_32.h
index 5c3c8b69884d..9dd0a769fa18 100644
--- a/arch/sparc/include/asm/atomic_32.h
+++ b/arch/sparc/include/asm/atomic_32.h
@@ -13,7 +13,7 @@
 
 #include <linux/types.h>
 
-#ifdef __KERNEL__
+#include <asm-generic/atomic64.h>
 
 #include <asm/system.h>
 
@@ -52,112 +52,10 @@ extern void atomic_set(atomic_t *, int);
 #define atomic_dec_and_test(v) (atomic_dec_return(v) == 0)
 #define atomic_sub_and_test(i, v) (atomic_sub_return(i, v) == 0)
 
-
-/* This is the old 24-bit implementation.  It's still used internally
- * by some sparc-specific code, notably the semaphore implementation.
- */
-typedef struct { volatile int counter; } atomic24_t;
-
-#ifndef CONFIG_SMP
-
-#define ATOMIC24_INIT(i)  { (i) }
-#define atomic24_read(v)          ((v)->counter)
-#define atomic24_set(v, i)        (((v)->counter) = i)
-
-#else
-/* We do the bulk of the actual work out of line in two common
- * routines in assembler, see arch/sparc/lib/atomic.S for the
- * "fun" details.
- *
- * For SMP the trick is you embed the spin lock byte within
- * the word, use the low byte so signedness is easily retained
- * via a quick arithmetic shift.  It looks like this:
- *
- *	----------------------------------------
- *	| signed 24-bit counter value |  lock  |  atomic_t
- *	----------------------------------------
- *	 31                          8 7      0
- */
-
-#define ATOMIC24_INIT(i)	{ ((i) << 8) }
-
-static inline int atomic24_read(const atomic24_t *v)
-{
-	int ret = v->counter;
-
-	while(ret & 0xff)
-		ret = v->counter;
-
-	return ret >> 8;
-}
-
-#define atomic24_set(v, i)	(((v)->counter) = ((i) << 8))
-#endif
-
-static inline int __atomic24_add(int i, atomic24_t *v)
-{
-	register volatile int *ptr asm("g1");
-	register int increment asm("g2");
-	register int tmp1 asm("g3");
-	register int tmp2 asm("g4");
-	register int tmp3 asm("g7");
-
-	ptr = &v->counter;
-	increment = i;
-
-	__asm__ __volatile__(
-	"mov	%%o7, %%g4\n\t"
-	"call	___atomic24_add\n\t"
-	" add	%%o7, 8, %%o7\n"
-	: "=&r" (increment), "=r" (tmp1), "=r" (tmp2), "=r" (tmp3)
-	: "0" (increment), "r" (ptr)
-	: "memory", "cc");
-
-	return increment;
-}
-
-static inline int __atomic24_sub(int i, atomic24_t *v)
-{
-	register volatile int *ptr asm("g1");
-	register int increment asm("g2");
-	register int tmp1 asm("g3");
-	register int tmp2 asm("g4");
-	register int tmp3 asm("g7");
-
-	ptr = &v->counter;
-	increment = i;
-
-	__asm__ __volatile__(
-	"mov	%%o7, %%g4\n\t"
-	"call	___atomic24_sub\n\t"
-	" add	%%o7, 8, %%o7\n"
-	: "=&r" (increment), "=r" (tmp1), "=r" (tmp2), "=r" (tmp3)
-	: "0" (increment), "r" (ptr)
-	: "memory", "cc");
-
-	return increment;
-}
-
-#define atomic24_add(i, v) ((void)__atomic24_add((i), (v)))
-#define atomic24_sub(i, v) ((void)__atomic24_sub((i), (v)))
-
-#define atomic24_dec_return(v) __atomic24_sub(1, (v))
-#define atomic24_inc_return(v) __atomic24_add(1, (v))
-
-#define atomic24_sub_and_test(i, v) (__atomic24_sub((i), (v)) == 0)
-#define atomic24_dec_and_test(v) (__atomic24_sub(1, (v)) == 0)
-
-#define atomic24_inc(v) ((void)__atomic24_add(1, (v)))
-#define atomic24_dec(v) ((void)__atomic24_sub(1, (v)))
-
-#define atomic24_add_negative(i, v) (__atomic24_add((i), (v)) < 0)
-
 /* Atomic operations are already serializing */
 #define smp_mb__before_atomic_dec()	barrier()
 #define smp_mb__after_atomic_dec()	barrier()
 #define smp_mb__before_atomic_inc()	barrier()
 #define smp_mb__after_atomic_inc()	barrier()
 
-#endif /* !(__KERNEL__) */
-
 #endif /* !(__ARCH_SPARC_ATOMIC__) */
diff --git a/arch/sparc/include/asm/io_32.h b/arch/sparc/include/asm/io_32.h
index c2ced21c9dc1..2006e5d359df 100644
--- a/arch/sparc/include/asm/io_32.h
+++ b/arch/sparc/include/asm/io_32.h
@@ -7,6 +7,7 @@
 
 #include <asm/page.h>      /* IO address mapping routines need this */
 #include <asm/system.h>
+#include <asm-generic/pci_iomap.h>
 
 #define page_to_phys(page)	(page_to_pfn(page) << PAGE_SHIFT)
 
@@ -324,7 +325,6 @@ extern void ioport_unmap(void __iomem *);
 
 /* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
 struct pci_dev;
-extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
 extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
 
 /*
diff --git a/arch/sparc/include/asm/io_64.h b/arch/sparc/include/asm/io_64.h
index 9c8965415f0a..9481e5a6fa90 100644
--- a/arch/sparc/include/asm/io_64.h
+++ b/arch/sparc/include/asm/io_64.h
@@ -8,6 +8,7 @@
 #include <asm/page.h>      /* IO address mapping routines need this */
 #include <asm/system.h>
 #include <asm/asi.h>
+#include <asm-generic/pci_iomap.h>
 
 /* PC crapola... */
 #define __SLOW_DOWN_IO	do { } while (0)
@@ -514,7 +515,6 @@ extern void ioport_unmap(void __iomem *);
 
 /* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
 struct pci_dev;
-extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
 extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
 
 static inline int sbus_can_dma_64bit(void)
diff --git a/arch/sparc/include/asm/page_32.h b/arch/sparc/include/asm/page_32.h
index 156707b0f18d..bb5c2ac4055d 100644
--- a/arch/sparc/include/asm/page_32.h
+++ b/arch/sparc/include/asm/page_32.h
@@ -8,14 +8,10 @@
 #ifndef _SPARC_PAGE_H
 #define _SPARC_PAGE_H
 
-#define PAGE_SHIFT   12
+#include <linux/const.h>
 
-#ifndef __ASSEMBLY__
-/* I have my suspicions... -DaveM */
-#define PAGE_SIZE    (1UL << PAGE_SHIFT)
-#else
-#define PAGE_SIZE    (1 << PAGE_SHIFT)
-#endif
+#define PAGE_SHIFT   12
+#define PAGE_SIZE    (_AC(1, UL) << PAGE_SHIFT)
 #define PAGE_MASK    (~(PAGE_SIZE-1))
 
 #include <asm/btfixup.h>
diff --git a/arch/sparc/include/asm/pgtsun4.h b/arch/sparc/include/asm/pgtsun4.h
deleted file mode 100644
index 5a0d661fb82e..000000000000
--- a/arch/sparc/include/asm/pgtsun4.h
+++ /dev/null
@@ -1,171 +0,0 @@
-/*
- * pgtsun4.h:  Sun4 specific pgtable.h defines and code.
- *
- * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
- * Copyright (C) 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
- */
-#ifndef _SPARC_PGTSUN4C_H
-#define _SPARC_PGTSUN4C_H
-
-#include <asm/contregs.h>
-
-/* PMD_SHIFT determines the size of the area a second-level page table can map */
-#define SUN4C_PMD_SHIFT       23
-
-/* PGDIR_SHIFT determines what a third-level page table entry can map */
-#define SUN4C_PGDIR_SHIFT       23
-#define SUN4C_PGDIR_SIZE        (1UL << SUN4C_PGDIR_SHIFT)
-#define SUN4C_PGDIR_MASK        (~(SUN4C_PGDIR_SIZE-1))
-#define SUN4C_PGDIR_ALIGN(addr) (((addr)+SUN4C_PGDIR_SIZE-1)&SUN4C_PGDIR_MASK)
-
-/* To represent how the sun4c mmu really lays things out. */
-#define SUN4C_REAL_PGDIR_SHIFT       18
-#define SUN4C_REAL_PGDIR_SIZE        (1UL << SUN4C_REAL_PGDIR_SHIFT)
-#define SUN4C_REAL_PGDIR_MASK        (~(SUN4C_REAL_PGDIR_SIZE-1))
-#define SUN4C_REAL_PGDIR_ALIGN(addr) (((addr)+SUN4C_REAL_PGDIR_SIZE-1)&SUN4C_REAL_PGDIR_MASK)
-
-/* 19 bit PFN on sun4 */
-#define SUN4C_PFN_MASK 0x7ffff
- 
-/* Don't increase these unless the structures in sun4c.c are fixed */
-#define SUN4C_MAX_SEGMAPS 256
-#define SUN4C_MAX_CONTEXTS 16
-
-/*
- * To be efficient, and not have to worry about allocating such
- * a huge pgd, we make the kernel sun4c tables each hold 1024
- * entries and the pgd similarly just like the i386 tables.
- */
-#define SUN4C_PTRS_PER_PTE    1024
-#define SUN4C_PTRS_PER_PMD    1
-#define SUN4C_PTRS_PER_PGD    1024
-
-/*
- * Sparc SUN4C pte fields.
- */
-#define _SUN4C_PAGE_VALID        0x80000000
-#define _SUN4C_PAGE_SILENT_READ  0x80000000   /* synonym */
-#define _SUN4C_PAGE_DIRTY        0x40000000
-#define _SUN4C_PAGE_SILENT_WRITE 0x40000000   /* synonym */
-#define _SUN4C_PAGE_PRIV         0x20000000   /* privileged page */
-#define _SUN4C_PAGE_NOCACHE      0x10000000   /* non-cacheable page */
-#define _SUN4C_PAGE_PRESENT      0x08000000   /* implemented in software */
-#define _SUN4C_PAGE_IO           0x04000000   /* I/O page */
-#define _SUN4C_PAGE_FILE         0x02000000   /* implemented in software */
-#define _SUN4C_PAGE_READ         0x00800000   /* implemented in software */
-#define _SUN4C_PAGE_WRITE        0x00400000   /* implemented in software */
-#define _SUN4C_PAGE_ACCESSED     0x00200000   /* implemented in software */
-#define _SUN4C_PAGE_MODIFIED     0x00100000   /* implemented in software */
-
-#define _SUN4C_READABLE		(_SUN4C_PAGE_READ|_SUN4C_PAGE_SILENT_READ|\
-				 _SUN4C_PAGE_ACCESSED)
-#define _SUN4C_WRITEABLE	(_SUN4C_PAGE_WRITE|_SUN4C_PAGE_SILENT_WRITE|\
-				 _SUN4C_PAGE_MODIFIED)
-
-#define _SUN4C_PAGE_CHG_MASK	(0xffff|_SUN4C_PAGE_ACCESSED|_SUN4C_PAGE_MODIFIED)
-
-#define SUN4C_PAGE_NONE		__pgprot(_SUN4C_PAGE_PRESENT)
-#define SUN4C_PAGE_SHARED	__pgprot(_SUN4C_PAGE_PRESENT|_SUN4C_READABLE|\
-					 _SUN4C_PAGE_WRITE)
-#define SUN4C_PAGE_COPY		__pgprot(_SUN4C_PAGE_PRESENT|_SUN4C_READABLE)
-#define SUN4C_PAGE_READONLY	__pgprot(_SUN4C_PAGE_PRESENT|_SUN4C_READABLE)
-#define SUN4C_PAGE_KERNEL	__pgprot(_SUN4C_READABLE|_SUN4C_WRITEABLE|\
-					 _SUN4C_PAGE_DIRTY|_SUN4C_PAGE_PRIV)
-
-/* SUN4C swap entry encoding
- *
- * We use 5 bits for the type and 19 for the offset.  This gives us
- * 32 swapfiles of 4GB each.  Encoding looks like:
- *
- * RRRRRRRRooooooooooooooooooottttt
- * fedcba9876543210fedcba9876543210
- *
- * The top 8 bits are reserved for protection and status bits, especially
- * FILE and PRESENT.
- */
-#define SUN4C_SWP_TYPE_MASK	0x1f
-#define SUN4C_SWP_OFF_MASK	0x7ffff
-#define SUN4C_SWP_OFF_SHIFT	5
-
-#ifndef __ASSEMBLY__
-
-static inline unsigned long sun4c_get_synchronous_error(void)
-{
-	unsigned long sync_err;
-
-	__asm__ __volatile__("lda [%1] %2, %0\n\t" :
-			     "=r" (sync_err) :
-			     "r" (AC_SYNC_ERR), "i" (ASI_CONTROL));
-	return sync_err;
-}
-
-static inline unsigned long sun4c_get_synchronous_address(void)
-{
-	unsigned long sync_addr;
-
-	__asm__ __volatile__("lda [%1] %2, %0\n\t" :
-			     "=r" (sync_addr) :
-			     "r" (AC_SYNC_VA), "i" (ASI_CONTROL));
-	return sync_addr;
-}
-
-/* SUN4 pte, segmap, and context manipulation */
-static inline unsigned long sun4c_get_segmap(unsigned long addr)
-{
-  register unsigned long entry;
-
-  __asm__ __volatile__("\n\tlduha [%1] %2, %0\n\t" : 
-		       "=r" (entry) :
-		       "r" (addr), "i" (ASI_SEGMAP));
-  return entry;
-}
-
-static inline void sun4c_put_segmap(unsigned long addr, unsigned long entry)
-{
-  __asm__ __volatile__("\n\tstha %1, [%0] %2; nop; nop; nop;\n\t" : :
-		       "r" (addr), "r" (entry),
-		       "i" (ASI_SEGMAP)
-		       : "memory");
-}
-
-static inline unsigned long sun4c_get_pte(unsigned long addr)
-{
-  register unsigned long entry;
-
-  __asm__ __volatile__("\n\tlda [%1] %2, %0\n\t" : 
-		       "=r" (entry) :
-		       "r" (addr), "i" (ASI_PTE));
-  return entry;
-}
-
-static inline void sun4c_put_pte(unsigned long addr, unsigned long entry)
-{
-  __asm__ __volatile__("\n\tsta %1, [%0] %2; nop; nop; nop;\n\t" : :
-		       "r" (addr), 
-		       "r" ((entry & ~(_SUN4C_PAGE_PRESENT))), "i" (ASI_PTE)
-		       : "memory");
-}
-
-static inline int sun4c_get_context(void)
-{
-  register int ctx;
-
-  __asm__ __volatile__("\n\tlduba [%1] %2, %0\n\t" :
-		       "=r" (ctx) :
-		       "r" (AC_CONTEXT), "i" (ASI_CONTROL));
-
-  return ctx;
-}
-
-static inline int sun4c_set_context(int ctx)
-{
-  __asm__ __volatile__("\n\tstba %0, [%1] %2; nop; nop; nop;\n\t" : :
-		       "r" (ctx), "r" (AC_CONTEXT), "i" (ASI_CONTROL)
-		       : "memory");
-
-  return ctx;
-}
-
-#endif /* !(__ASSEMBLY__) */
-
-#endif /* !(_SPARC_PGTSUN4_H) */
diff --git a/arch/sparc/include/asm/signal.h b/arch/sparc/include/asm/signal.h
index e49b828a2471..aa42fe30d5b9 100644
--- a/arch/sparc/include/asm/signal.h
+++ b/arch/sparc/include/asm/signal.h
@@ -143,10 +143,11 @@ struct sigstack {
 #define SA_ONSTACK	_SV_SSTACK
 #define SA_RESTART	_SV_INTR
 #define SA_ONESHOT	_SV_RESET
-#define SA_NOMASK	0x20u
+#define SA_NODEFER	0x20u
 #define SA_NOCLDWAIT    0x100u
 #define SA_SIGINFO      0x200u
 
+#define SA_NOMASK	SA_NODEFER
 
 #define SIG_BLOCK          0x01	/* for blocking signals */
 #define SIG_UNBLOCK        0x02	/* for unblocking signals */
diff --git a/arch/sparc/include/asm/thread_info_32.h b/arch/sparc/include/asm/thread_info_32.h
index 5cc5888ad5a3..c2a1080cdd3b 100644
--- a/arch/sparc/include/asm/thread_info_32.h
+++ b/arch/sparc/include/asm/thread_info_32.h
@@ -95,7 +95,7 @@ BTFIXUPDEF_CALL(void, free_thread_info, struct thread_info *)
  * Observe the order of get_free_pages() in alloc_thread_info_node().
  * The sun4 has 8K stack too, because it's short on memory, and 16K is a waste.
  */
-#define THREAD_SIZE		8192
+#define THREAD_SIZE		(2 * PAGE_SIZE)
 
 /*
  * Offsets in thread_info structure, used in assembly code
diff --git a/arch/sparc/lib/atomic_32.S b/arch/sparc/lib/atomic_32.S
index 178cbb8ae1b9..eb6c7359cbd1 100644
--- a/arch/sparc/lib/atomic_32.S
+++ b/arch/sparc/lib/atomic_32.S
@@ -40,60 +40,5 @@ ___xchg32_sun4md:
 	 mov	%g4, %o7
 #endif
 
-	/* Read asm-sparc/atomic.h carefully to understand how this works for SMP.
-	 * Really, some things here for SMP are overly clever, go read the header.
-	 */
-	.globl	___atomic24_add
-___atomic24_add:
-	rd	%psr, %g3		! Keep the code small, old way was stupid
-	nop; nop; nop;			! Let the bits set
-	or	%g3, PSR_PIL, %g7	! Disable interrupts
-	wr	%g7, 0x0, %psr		! Set %psr
-	nop; nop; nop;			! Let the bits set
-#ifdef CONFIG_SMP
-1:	ldstub	[%g1 + 3], %g7		! Spin on the byte lock for SMP.
-	orcc	%g7, 0x0, %g0		! Did we get it?
-	bne	1b			! Nope...
-	 ld	[%g1], %g7		! Load locked atomic24_t
-	sra	%g7, 8, %g7		! Get signed 24-bit integer
-	add	%g7, %g2, %g2		! Add in argument
-	sll	%g2, 8, %g7		! Transpose back to atomic24_t
-	st	%g7, [%g1]		! Clever: This releases the lock as well.
-#else
-	ld	[%g1], %g7		! Load locked atomic24_t
-	add	%g7, %g2, %g2		! Add in argument
-	st	%g2, [%g1]		! Store it back
-#endif
-	wr	%g3, 0x0, %psr		! Restore original PSR_PIL
-	nop; nop; nop;			! Let the bits set
-	jmpl	%o7, %g0		! NOTE: not + 8, see callers in atomic.h
-	 mov	%g4, %o7		! Restore %o7
-
-	.globl	___atomic24_sub
-___atomic24_sub:
-	rd	%psr, %g3		! Keep the code small, old way was stupid
-	nop; nop; nop;			! Let the bits set
-	or	%g3, PSR_PIL, %g7	! Disable interrupts
-	wr	%g7, 0x0, %psr		! Set %psr
-	nop; nop; nop;			! Let the bits set
-#ifdef CONFIG_SMP
-1:	ldstub	[%g1 + 3], %g7		! Spin on the byte lock for SMP.
-	orcc	%g7, 0x0, %g0		! Did we get it?
-	bne	1b			! Nope...
-	 ld	[%g1], %g7		! Load locked atomic24_t
-	sra	%g7, 8, %g7		! Get signed 24-bit integer
-	sub	%g7, %g2, %g2		! Subtract argument
-	sll	%g2, 8, %g7		! Transpose back to atomic24_t
-	st	%g7, [%g1]		! Clever: This releases the lock as well
-#else
-	ld	[%g1], %g7		! Load locked atomic24_t
-	sub	%g7, %g2, %g2		! Subtract argument
-	st	%g2, [%g1]		! Store it back
-#endif
-	wr	%g3, 0x0, %psr		! Restore original PSR_PIL
-	nop; nop; nop;			! Let the bits set
-	jmpl	%o7, %g0		! NOTE: not + 8, see callers in atomic.h
-	 mov	%g4, %o7		! Restore %o7
-
 	.globl  __atomic_end
 __atomic_end:
diff --git a/arch/sparc/lib/iomap.c b/arch/sparc/lib/iomap.c
index 9ef37e13a920..c4d42a50ebc0 100644
--- a/arch/sparc/lib/iomap.c
+++ b/arch/sparc/lib/iomap.c
@@ -18,31 +18,8 @@ void ioport_unmap(void __iomem *addr)
 EXPORT_SYMBOL(ioport_map);
 EXPORT_SYMBOL(ioport_unmap);
 
-/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
-void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
-{
-	resource_size_t start = pci_resource_start(dev, bar);
-	resource_size_t len = pci_resource_len(dev, bar);
-	unsigned long flags = pci_resource_flags(dev, bar);
-
-	if (!len || !start)
-		return NULL;
-	if (maxlen && len > maxlen)
-		len = maxlen;
-	if (flags & IORESOURCE_IO)
-		return ioport_map(start, len);
-	if (flags & IORESOURCE_MEM) {
-		if (flags & IORESOURCE_CACHEABLE)
-			return ioremap(start, len);
-		return ioremap_nocache(start, len);
-	}
-	/* What? */
-	return NULL;
-}
-
 void pci_iounmap(struct pci_dev *dev, void __iomem * addr)
 {
 	/* nothing to do */
 }
-EXPORT_SYMBOL(pci_iomap);
 EXPORT_SYMBOL(pci_iounmap);
diff --git a/arch/sparc/lib/ksyms.c b/arch/sparc/lib/ksyms.c
index 1b30bb3bfdb1..f73c2240fe60 100644
--- a/arch/sparc/lib/ksyms.c
+++ b/arch/sparc/lib/ksyms.c
@@ -62,8 +62,6 @@ extern void ___rw_read_enter(void);
 extern void ___rw_read_try(void);
 extern void ___rw_read_exit(void);
 extern void ___rw_write_enter(void);
-extern void ___atomic24_add(void);
-extern void ___atomic24_sub(void);
 
 /* Alias functions whose names begin with "." and export the aliases.
  * The module references will be fixed up by module_frob_arch_sections.
@@ -97,10 +95,6 @@ EXPORT_SYMBOL(___rw_read_exit);
 EXPORT_SYMBOL(___rw_write_enter);
 #endif
 
-/* Atomic operations. */
-EXPORT_SYMBOL(___atomic24_add);
-EXPORT_SYMBOL(___atomic24_sub);
-
 EXPORT_SYMBOL(__ashrdi3);
 EXPORT_SYMBOL(__ashldi3);
 EXPORT_SYMBOL(__lshrdi3);
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index 70a0de46cd1b..11270ca22c0a 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -321,6 +321,7 @@ config PCI
 	bool "PCI support"
 	default y
 	select PCI_DOMAINS
+	select GENERIC_PCI_IOMAP
 	---help---
 	  Enable PCI root complex support, so PCIe endpoint devices can
 	  be attached to the Tile chip.  Many, but not all, PCI devices
diff --git a/arch/tile/include/asm/io.h b/arch/tile/include/asm/io.h
index c9ea1652af03..d2152deb1f3c 100644
--- a/arch/tile/include/asm/io.h
+++ b/arch/tile/include/asm/io.h
@@ -204,7 +204,8 @@ static inline long ioport_panic(void)
 
 static inline void __iomem *ioport_map(unsigned long port, unsigned int len)
 {
-	return (void __iomem *) ioport_panic();
+	pr_info("ioport_map: mapping IO resources is unsupported on tile.\n");
+	return NULL;
 }
 
 static inline void ioport_unmap(void __iomem *addr)
diff --git a/arch/tile/include/asm/pci.h b/arch/tile/include/asm/pci.h
index 7f03cefed1b9..1d25fea42e54 100644
--- a/arch/tile/include/asm/pci.h
+++ b/arch/tile/include/asm/pci.h
@@ -16,6 +16,7 @@
 #define _ASM_TILE_PCI_H
 
 #include <linux/pci.h>
+#include <asm-generic/pci_iomap.h>
 
 /*
  * Structure of a PCI controller (host bridge)
@@ -49,7 +50,6 @@ struct pci_controller {
 int __devinit tile_pci_init(void);
 int __devinit pcibios_init(void);
 
-void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
 static inline void pci_iounmap(struct pci_dev *dev, void __iomem *addr) {}
 
 void __devinit pcibios_fixup_bus(struct pci_bus *bus);
diff --git a/arch/tile/kernel/pci.c b/arch/tile/kernel/pci.c
index 9d610d3fb11e..25567934a21e 100644
--- a/arch/tile/kernel/pci.c
+++ b/arch/tile/kernel/pci.c
@@ -466,27 +466,6 @@ int pcibios_enable_device(struct pci_dev *dev, int mask)
 	return 0;
 }
 
-void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
-{
-	unsigned long start = pci_resource_start(dev, bar);
-	unsigned long len = pci_resource_len(dev, bar);
-	unsigned long flags = pci_resource_flags(dev, bar);
-
-	if (!len)
-		return NULL;
-	if (max && len > max)
-		len = max;
-
-	if (!(flags & IORESOURCE_MEM)) {
-		pr_info("PCI: Trying to map invalid resource %#lx\n", flags);
-		start = 0;
-	}
-
-	return (void __iomem *)start;
-}
-EXPORT_SYMBOL(pci_iomap);
-
-
 /****************************************************************
  *
  * Tile PCI config space read/write routines
diff --git a/arch/unicore32/Kconfig b/arch/unicore32/Kconfig
index 942ed6174f1d..eeb8054c7cd8 100644
--- a/arch/unicore32/Kconfig
+++ b/arch/unicore32/Kconfig
@@ -12,6 +12,7 @@ config UNICORE32
 	select GENERIC_IRQ_PROBE
 	select GENERIC_IRQ_SHOW
 	select ARCH_WANT_FRAME_POINTERS
+	select GENERIC_IOMAP
 	help
 	  UniCore-32 is 32-bit Instruction Set Architecture,
 	  including a series of low-power-consumption RISC chip
@@ -30,9 +31,6 @@ config GENERIC_CLOCKEVENTS
 config GENERIC_CSUM
 	def_bool y
 
-config GENERIC_IOMAP
-	def_bool y
-
 config NO_IOPORT
 	bool
 
diff --git a/arch/unicore32/include/asm/io.h b/arch/unicore32/include/asm/io.h
index 1a5c5a5eb39c..adddf6d64077 100644
--- a/arch/unicore32/include/asm/io.h
+++ b/arch/unicore32/include/asm/io.h
@@ -37,15 +37,9 @@ extern void __uc32_iounmap(volatile void __iomem *addr);
  */
 #define ioremap(cookie, size)		__uc32_ioremap(cookie, size)
 #define ioremap_cached(cookie, size)	__uc32_ioremap_cached(cookie, size)
+#define ioremap_nocache(cookie, size)	__uc32_ioremap(cookie, size)
 #define iounmap(cookie)			__uc32_iounmap(cookie)
 
-/*
- * Convert a physical pointer to a virtual kernel pointer for /dev/mem
- * access
- */
-#undef xlate_dev_mem_ptr
-#define xlate_dev_mem_ptr(p)	__va(p)
-
 #define HAVE_ARCH_PIO_SIZE
 #define PIO_OFFSET		(unsigned int)(PCI_IOBASE)
 #define PIO_MASK		(unsigned int)(IO_SPACE_LIMIT)
diff --git a/arch/unicore32/kernel/puv3-nb0916.c b/arch/unicore32/kernel/puv3-nb0916.c
index 37b12a06b499..181108b8ecce 100644
--- a/arch/unicore32/kernel/puv3-nb0916.c
+++ b/arch/unicore32/kernel/puv3-nb0916.c
@@ -123,7 +123,7 @@ int __init mach_nb0916_init(void)
 
 	if (request_irq(gpio_to_irq(GPI_LCD_CASE_OFF),
 		&nb0916_lcdcaseoff_handler,
-		IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+		IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 		"NB0916 lcd case off", NULL) < 0) {
 
 		printk(KERN_DEBUG "LCD-Case-OFF IRQ %d not available\n",
@@ -131,7 +131,7 @@ int __init mach_nb0916_init(void)
 	}
 
 	if (request_irq(gpio_to_irq(GPI_OTP_INT), &nb0916_overheat_handler,
-		IRQF_DISABLED | IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
+		IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING,
 		"NB0916 overheating protection", NULL) < 0) {
 
 		printk(KERN_DEBUG "Overheating Protection IRQ %d not available\n",
diff --git a/arch/unicore32/kernel/setup.c b/arch/unicore32/kernel/setup.c
index 673d7a89d8ff..87adbf5ebfe0 100644
--- a/arch/unicore32/kernel/setup.c
+++ b/arch/unicore32/kernel/setup.c
@@ -65,7 +65,7 @@ static char default_command_line[COMMAND_LINE_SIZE] __initdata = CONFIG_CMDLINE;
  */
 static struct resource mem_res[] = {
 	{
-		.name = "Kernel text",
+		.name = "Kernel code",
 		.start = 0,
 		.end = 0,
 		.flags = IORESOURCE_MEM
diff --git a/arch/unicore32/kernel/signal.c b/arch/unicore32/kernel/signal.c
index b163fca56789..911b549a6df5 100644
--- a/arch/unicore32/kernel/signal.c
+++ b/arch/unicore32/kernel/signal.c
@@ -63,10 +63,7 @@ static int restore_sigframe(struct pt_regs *regs, struct sigframe __user *sf)
 	err = __copy_from_user(&set, &sf->uc.uc_sigmask, sizeof(set));
 	if (err == 0) {
 		sigdelsetmask(&set, ~_BLOCKABLE);
-		spin_lock_irq(&current->sighand->siglock);
-		current->blocked = set;
-		recalc_sigpending();
-		spin_unlock_irq(&current->sighand->siglock);
+		set_current_blocked(&set);
 	}
 
 	err |= __get_user(regs->UCreg_00, &sf->uc.uc_mcontext.regs.UCreg_00);
@@ -321,6 +318,7 @@ static int handle_signal(unsigned long sig, struct k_sigaction *ka,
 {
 	struct thread_info *thread = current_thread_info();
 	struct task_struct *tsk = current;
+	sigset_t blocked;
 	int usig = sig;
 	int ret;
 
@@ -372,13 +370,10 @@ static int handle_signal(unsigned long sig, struct k_sigaction *ka,
 	/*
 	 * Block the signal if we were successful.
 	 */
-	spin_lock_irq(&tsk->sighand->siglock);
-	sigorsets(&tsk->blocked, &tsk->blocked,
-		  &ka->sa.sa_mask);
+	sigorsets(&blocked, &tsk->blocked, &ka->sa.sa_mask);
 	if (!(ka->sa.sa_flags & SA_NODEFER))
-		sigaddset(&tsk->blocked, sig);
-	recalc_sigpending();
-	spin_unlock_irq(&tsk->sighand->siglock);
+		sigaddset(&blocked, sig);
+	set_current_blocked(&blocked);
 
 	return 0;
 }
diff --git a/arch/unicore32/kernel/time.c b/arch/unicore32/kernel/time.c
index 080710c09241..d3824b2ff644 100644
--- a/arch/unicore32/kernel/time.c
+++ b/arch/unicore32/kernel/time.c
@@ -86,7 +86,7 @@ static struct clocksource cksrc_puv3_oscr = {
 
 static struct irqaction puv3_timer_irq = {
 	.name		= "ost0",
-	.flags		= IRQF_DISABLED | IRQF_TIMER | IRQF_IRQPOLL,
+	.flags		= IRQF_TIMER | IRQF_IRQPOLL,
 	.handler	= puv3_ost0_interrupt,
 	.dev_id		= &ckevt_puv3_osmr0,
 };
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 1d2a69dd36d8..1a31254ceb83 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -62,6 +62,7 @@ config X86
 	select ANON_INODES
 	select HAVE_ARCH_KMEMCHECK
 	select HAVE_USER_RETURN_NOTIFIER
+	select ARCH_BINFMT_ELF_RANDOMIZE_PIE
 	select HAVE_ARCH_JUMP_LABEL
 	select HAVE_TEXT_POKE_SMP
 	select HAVE_GENERIC_HARDIRQS
@@ -77,6 +78,7 @@ config X86
 	select HAVE_BPF_JIT if (X86_64 && NET)
 	select CLKEVT_I8253
 	select ARCH_HAVE_NMI_SAFE_CMPXCHG
+	select GENERIC_IOMAP
 
 config INSTRUCTION_DECODER
 	def_bool (KPROBES || PERF_EVENTS)
@@ -142,9 +144,6 @@ config NEED_SG_DMA_LENGTH
 config GENERIC_ISA_DMA
 	def_bool ISA_DMA_API
 
-config GENERIC_IOMAP
-	def_bool y
-
 config GENERIC_BUG
 	def_bool y
 	depends on BUG
diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h
index f3444f700f36..17c5d4bdee5e 100644
--- a/arch/x86/include/asm/cpufeature.h
+++ b/arch/x86/include/asm/cpufeature.h
@@ -197,7 +197,10 @@
 
 /* Intel-defined CPU features, CPUID level 0x00000007:0 (ebx), word 9 */
 #define X86_FEATURE_FSGSBASE	(9*32+ 0) /* {RD/WR}{FS/GS}BASE instructions*/
+#define X86_FEATURE_BMI1	(9*32+ 3) /* 1st group bit manipulation extensions */
+#define X86_FEATURE_AVX2	(9*32+ 5) /* AVX2 instructions */
 #define X86_FEATURE_SMEP	(9*32+ 7) /* Supervisor Mode Execution Protection */
+#define X86_FEATURE_BMI2	(9*32+ 8) /* 2nd group bit manipulation extensions */
 #define X86_FEATURE_ERMS	(9*32+ 9) /* Enhanced REP MOVSB/STOSB */
 
 #if defined(__KERNEL__) && !defined(__ASSEMBLY__)
diff --git a/arch/x86/include/asm/iommu.h b/arch/x86/include/asm/iommu.h
index 345c99cef152..dffc38ee6255 100644
--- a/arch/x86/include/asm/iommu.h
+++ b/arch/x86/include/asm/iommu.h
@@ -5,6 +5,7 @@ extern struct dma_map_ops nommu_dma_ops;
 extern int force_iommu, no_iommu;
 extern int iommu_detected;
 extern int iommu_pass_through;
+extern int iommu_group_mf;
 
 /* 10 seconds */
 #define DMAR_OPERATION_TIMEOUT ((cycles_t) tsc_khz*10*1000)
diff --git a/arch/x86/include/asm/kvm_emulate.h b/arch/x86/include/asm/kvm_emulate.h
index a026507893e9..ab4092e3214e 100644
--- a/arch/x86/include/asm/kvm_emulate.h
+++ b/arch/x86/include/asm/kvm_emulate.h
@@ -181,6 +181,7 @@ struct x86_emulate_ops {
 	int (*set_dr)(struct x86_emulate_ctxt *ctxt, int dr, ulong value);
 	int (*set_msr)(struct x86_emulate_ctxt *ctxt, u32 msr_index, u64 data);
 	int (*get_msr)(struct x86_emulate_ctxt *ctxt, u32 msr_index, u64 *pdata);
+	int (*read_pmc)(struct x86_emulate_ctxt *ctxt, u32 pmc, u64 *pdata);
 	void (*halt)(struct x86_emulate_ctxt *ctxt);
 	void (*wbinvd)(struct x86_emulate_ctxt *ctxt);
 	int (*fix_hypercall)(struct x86_emulate_ctxt *ctxt);
@@ -364,6 +365,7 @@ enum x86_intercept {
 #endif
 
 int x86_decode_insn(struct x86_emulate_ctxt *ctxt, void *insn, int insn_len);
+bool x86_page_table_writing_insn(struct x86_emulate_ctxt *ctxt);
 #define EMULATION_FAILED -1
 #define EMULATION_OK 0
 #define EMULATION_RESTART 1
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index b4973f4dab98..52d6640a5ca1 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -16,10 +16,12 @@
 #include <linux/mmu_notifier.h>
 #include <linux/tracepoint.h>
 #include <linux/cpumask.h>
+#include <linux/irq_work.h>
 
 #include <linux/kvm.h>
 #include <linux/kvm_para.h>
 #include <linux/kvm_types.h>
+#include <linux/perf_event.h>
 
 #include <asm/pvclock-abi.h>
 #include <asm/desc.h>
@@ -31,6 +33,8 @@
 #define KVM_MEMORY_SLOTS 32
 /* memory slots that does not exposed to userspace */
 #define KVM_PRIVATE_MEM_SLOTS 4
+#define KVM_MEM_SLOTS_NUM (KVM_MEMORY_SLOTS + KVM_PRIVATE_MEM_SLOTS)
+
 #define KVM_MMIO_SIZE 16
 
 #define KVM_PIO_PAGE_OFFSET 1
@@ -228,7 +232,7 @@ struct kvm_mmu_page {
 	 * One bit set per slot which has memory
 	 * in this shadow page.
 	 */
-	DECLARE_BITMAP(slot_bitmap, KVM_MEMORY_SLOTS + KVM_PRIVATE_MEM_SLOTS);
+	DECLARE_BITMAP(slot_bitmap, KVM_MEM_SLOTS_NUM);
 	bool unsync;
 	int root_count;          /* Currently serving as active root */
 	unsigned int unsync_children;
@@ -239,14 +243,9 @@ struct kvm_mmu_page {
 	int clear_spte_count;
 #endif
 
-	struct rcu_head rcu;
-};
+	int write_flooding_count;
 
-struct kvm_pv_mmu_op_buffer {
-	void *ptr;
-	unsigned len;
-	unsigned processed;
-	char buf[512] __aligned(sizeof(long));
+	struct rcu_head rcu;
 };
 
 struct kvm_pio_request {
@@ -294,6 +293,37 @@ struct kvm_mmu {
 	u64 pdptrs[4]; /* pae */
 };
 
+enum pmc_type {
+	KVM_PMC_GP = 0,
+	KVM_PMC_FIXED,
+};
+
+struct kvm_pmc {
+	enum pmc_type type;
+	u8 idx;
+	u64 counter;
+	u64 eventsel;
+	struct perf_event *perf_event;
+	struct kvm_vcpu *vcpu;
+};
+
+struct kvm_pmu {
+	unsigned nr_arch_gp_counters;
+	unsigned nr_arch_fixed_counters;
+	unsigned available_event_types;
+	u64 fixed_ctr_ctrl;
+	u64 global_ctrl;
+	u64 global_status;
+	u64 global_ovf_ctrl;
+	u64 counter_bitmask[2];
+	u64 global_ctrl_mask;
+	u8 version;
+	struct kvm_pmc gp_counters[X86_PMC_MAX_GENERIC];
+	struct kvm_pmc fixed_counters[X86_PMC_MAX_FIXED];
+	struct irq_work irq_work;
+	u64 reprogram_pmi;
+};
+
 struct kvm_vcpu_arch {
 	/*
 	 * rip and regs accesses must go through
@@ -345,19 +375,10 @@ struct kvm_vcpu_arch {
 	 */
 	struct kvm_mmu *walk_mmu;
 
-	/* only needed in kvm_pv_mmu_op() path, but it's hot so
-	 * put it here to avoid allocation */
-	struct kvm_pv_mmu_op_buffer mmu_op_buffer;
-
 	struct kvm_mmu_memory_cache mmu_pte_list_desc_cache;
 	struct kvm_mmu_memory_cache mmu_page_cache;
 	struct kvm_mmu_memory_cache mmu_page_header_cache;
 
-	gfn_t last_pt_write_gfn;
-	int   last_pt_write_count;
-	u64  *last_pte_updated;
-	gfn_t last_pte_gfn;
-
 	struct fpu guest_fpu;
 	u64 xcr0;
 
@@ -436,6 +457,8 @@ struct kvm_vcpu_arch {
 	unsigned access;
 	gfn_t mmio_gfn;
 
+	struct kvm_pmu pmu;
+
 	/* used for guest single stepping over the given code position */
 	unsigned long singlestep_rip;
 
@@ -444,6 +467,9 @@ struct kvm_vcpu_arch {
 
 	cpumask_var_t wbinvd_dirty_mask;
 
+	unsigned long last_retry_eip;
+	unsigned long last_retry_addr;
+
 	struct {
 		bool halted;
 		gfn_t gfns[roundup_pow_of_two(ASYNC_PF_PER_VCPU)];
@@ -459,7 +485,6 @@ struct kvm_arch {
 	unsigned int n_requested_mmu_pages;
 	unsigned int n_max_mmu_pages;
 	unsigned int indirect_shadow_pages;
-	atomic_t invlpg_counter;
 	struct hlist_head mmu_page_hash[KVM_NUM_MMU_PAGES];
 	/*
 	 * Hash table of struct kvm_mmu_page.
@@ -660,6 +685,8 @@ void kvm_mmu_set_mask_ptes(u64 user_mask, u64 accessed_mask,
 
 int kvm_mmu_reset_context(struct kvm_vcpu *vcpu);
 void kvm_mmu_slot_remove_write_access(struct kvm *kvm, int slot);
+int kvm_mmu_rmap_write_protect(struct kvm *kvm, u64 gfn,
+			       struct kvm_memory_slot *slot);
 void kvm_mmu_zap_all(struct kvm *kvm);
 unsigned int kvm_mmu_calculate_mmu_pages(struct kvm *kvm);
 void kvm_mmu_change_mmu_pages(struct kvm *kvm, unsigned int kvm_nr_mmu_pages);
@@ -668,8 +695,6 @@ int load_pdptrs(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu, unsigned long cr3);
 
 int emulator_write_phys(struct kvm_vcpu *vcpu, gpa_t gpa,
 			  const void *val, int bytes);
-int kvm_pv_mmu_op(struct kvm_vcpu *vcpu, unsigned long bytes,
-		  gpa_t addr, unsigned long *ret);
 u8 kvm_get_guest_memory_type(struct kvm_vcpu *vcpu, gfn_t gfn);
 
 extern bool tdp_enabled;
@@ -692,6 +717,7 @@ enum emulation_result {
 #define EMULTYPE_NO_DECODE	    (1 << 0)
 #define EMULTYPE_TRAP_UD	    (1 << 1)
 #define EMULTYPE_SKIP		    (1 << 2)
+#define EMULTYPE_RETRY		    (1 << 3)
 int x86_emulate_instruction(struct kvm_vcpu *vcpu, unsigned long cr2,
 			    int emulation_type, void *insn, int insn_len);
 
@@ -734,6 +760,7 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data);
 
 unsigned long kvm_get_rflags(struct kvm_vcpu *vcpu);
 void kvm_set_rflags(struct kvm_vcpu *vcpu, unsigned long rflags);
+bool kvm_rdpmc(struct kvm_vcpu *vcpu);
 
 void kvm_queue_exception(struct kvm_vcpu *vcpu, unsigned nr);
 void kvm_queue_exception_e(struct kvm_vcpu *vcpu, unsigned nr, u32 error_code);
@@ -754,13 +781,14 @@ int fx_init(struct kvm_vcpu *vcpu);
 
 void kvm_mmu_flush_tlb(struct kvm_vcpu *vcpu);
 void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
-		       const u8 *new, int bytes,
-		       bool guest_initiated);
+		       const u8 *new, int bytes);
+int kvm_mmu_unprotect_page(struct kvm *kvm, gfn_t gfn);
 int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva);
 void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu);
 int kvm_mmu_load(struct kvm_vcpu *vcpu);
 void kvm_mmu_unload(struct kvm_vcpu *vcpu);
 void kvm_mmu_sync_roots(struct kvm_vcpu *vcpu);
+gpa_t translate_nested_gpa(struct kvm_vcpu *vcpu, gpa_t gpa, u32 access);
 gpa_t kvm_mmu_gva_to_gpa_read(struct kvm_vcpu *vcpu, gva_t gva,
 			      struct x86_exception *exception);
 gpa_t kvm_mmu_gva_to_gpa_fetch(struct kvm_vcpu *vcpu, gva_t gva,
@@ -782,6 +810,11 @@ void kvm_disable_tdp(void);
 int complete_pio(struct kvm_vcpu *vcpu);
 bool kvm_check_iopl(struct kvm_vcpu *vcpu);
 
+static inline gpa_t translate_gpa(struct kvm_vcpu *vcpu, gpa_t gpa, u32 access)
+{
+	return gpa;
+}
+
 static inline struct kvm_mmu_page *page_header(hpa_t shadow_page)
 {
 	struct page *page = pfn_to_page(shadow_page >> PAGE_SHIFT);
@@ -894,4 +927,17 @@ extern bool kvm_find_async_pf_gfn(struct kvm_vcpu *vcpu, gfn_t gfn);
 
 void kvm_complete_insn_gp(struct kvm_vcpu *vcpu, int err);
 
+int kvm_is_in_guest(void);
+
+void kvm_pmu_init(struct kvm_vcpu *vcpu);
+void kvm_pmu_destroy(struct kvm_vcpu *vcpu);
+void kvm_pmu_reset(struct kvm_vcpu *vcpu);
+void kvm_pmu_cpuid_update(struct kvm_vcpu *vcpu);
+bool kvm_pmu_msr(struct kvm_vcpu *vcpu, u32 msr);
+int kvm_pmu_get_msr(struct kvm_vcpu *vcpu, u32 msr, u64 *data);
+int kvm_pmu_set_msr(struct kvm_vcpu *vcpu, u32 msr, u64 data);
+int kvm_pmu_read_pmc(struct kvm_vcpu *vcpu, unsigned pmc, u64 *data);
+void kvm_handle_pmu_event(struct kvm_vcpu *vcpu);
+void kvm_deliver_pmi(struct kvm_vcpu *vcpu);
+
 #endif /* _ASM_X86_KVM_HOST_H */
diff --git a/arch/x86/include/asm/mrst.h b/arch/x86/include/asm/mrst.h
index 93f79094c224..0a0a95460434 100644
--- a/arch/x86/include/asm/mrst.h
+++ b/arch/x86/include/asm/mrst.h
@@ -67,7 +67,7 @@ extern struct console early_mrst_console;
 extern void mrst_early_console_init(void);
 
 extern struct console early_hsu_console;
-extern void hsu_early_console_init(void);
+extern void hsu_early_console_init(const char *);
 
 extern void intel_scu_devices_create(void);
 extern void intel_scu_devices_destroy(void);
diff --git a/arch/x86/include/asm/percpu.h b/arch/x86/include/asm/percpu.h
index 529bf07e8067..7a11910a63c4 100644
--- a/arch/x86/include/asm/percpu.h
+++ b/arch/x86/include/asm/percpu.h
@@ -414,22 +414,6 @@ do {									\
 #define this_cpu_xchg_2(pcp, nval)	percpu_xchg_op(pcp, nval)
 #define this_cpu_xchg_4(pcp, nval)	percpu_xchg_op(pcp, nval)
 
-#define irqsafe_cpu_add_1(pcp, val)	percpu_add_op((pcp), val)
-#define irqsafe_cpu_add_2(pcp, val)	percpu_add_op((pcp), val)
-#define irqsafe_cpu_add_4(pcp, val)	percpu_add_op((pcp), val)
-#define irqsafe_cpu_and_1(pcp, val)	percpu_to_op("and", (pcp), val)
-#define irqsafe_cpu_and_2(pcp, val)	percpu_to_op("and", (pcp), val)
-#define irqsafe_cpu_and_4(pcp, val)	percpu_to_op("and", (pcp), val)
-#define irqsafe_cpu_or_1(pcp, val)	percpu_to_op("or", (pcp), val)
-#define irqsafe_cpu_or_2(pcp, val)	percpu_to_op("or", (pcp), val)
-#define irqsafe_cpu_or_4(pcp, val)	percpu_to_op("or", (pcp), val)
-#define irqsafe_cpu_xor_1(pcp, val)	percpu_to_op("xor", (pcp), val)
-#define irqsafe_cpu_xor_2(pcp, val)	percpu_to_op("xor", (pcp), val)
-#define irqsafe_cpu_xor_4(pcp, val)	percpu_to_op("xor", (pcp), val)
-#define irqsafe_cpu_xchg_1(pcp, nval)	percpu_xchg_op(pcp, nval)
-#define irqsafe_cpu_xchg_2(pcp, nval)	percpu_xchg_op(pcp, nval)
-#define irqsafe_cpu_xchg_4(pcp, nval)	percpu_xchg_op(pcp, nval)
-
 #ifndef CONFIG_M386
 #define __this_cpu_add_return_1(pcp, val) percpu_add_return_op(pcp, val)
 #define __this_cpu_add_return_2(pcp, val) percpu_add_return_op(pcp, val)
@@ -445,9 +429,6 @@ do {									\
 #define this_cpu_cmpxchg_2(pcp, oval, nval)	percpu_cmpxchg_op(pcp, oval, nval)
 #define this_cpu_cmpxchg_4(pcp, oval, nval)	percpu_cmpxchg_op(pcp, oval, nval)
 
-#define irqsafe_cpu_cmpxchg_1(pcp, oval, nval)	percpu_cmpxchg_op(pcp, oval, nval)
-#define irqsafe_cpu_cmpxchg_2(pcp, oval, nval)	percpu_cmpxchg_op(pcp, oval, nval)
-#define irqsafe_cpu_cmpxchg_4(pcp, oval, nval)	percpu_cmpxchg_op(pcp, oval, nval)
 #endif /* !CONFIG_M386 */
 
 #ifdef CONFIG_X86_CMPXCHG64
@@ -464,7 +445,6 @@ do {									\
 
 #define __this_cpu_cmpxchg_double_4	percpu_cmpxchg8b_double
 #define this_cpu_cmpxchg_double_4	percpu_cmpxchg8b_double
-#define irqsafe_cpu_cmpxchg_double_4	percpu_cmpxchg8b_double
 #endif /* CONFIG_X86_CMPXCHG64 */
 
 /*
@@ -492,13 +472,6 @@ do {									\
 #define this_cpu_xchg_8(pcp, nval)	percpu_xchg_op(pcp, nval)
 #define this_cpu_cmpxchg_8(pcp, oval, nval)	percpu_cmpxchg_op(pcp, oval, nval)
 
-#define irqsafe_cpu_add_8(pcp, val)	percpu_add_op((pcp), val)
-#define irqsafe_cpu_and_8(pcp, val)	percpu_to_op("and", (pcp), val)
-#define irqsafe_cpu_or_8(pcp, val)	percpu_to_op("or", (pcp), val)
-#define irqsafe_cpu_xor_8(pcp, val)	percpu_to_op("xor", (pcp), val)
-#define irqsafe_cpu_xchg_8(pcp, nval)	percpu_xchg_op(pcp, nval)
-#define irqsafe_cpu_cmpxchg_8(pcp, oval, nval)	percpu_cmpxchg_op(pcp, oval, nval)
-
 /*
  * Pretty complex macro to generate cmpxchg16 instruction.  The instruction
  * is not supported on early AMD64 processors so we must be able to emulate
@@ -521,7 +494,6 @@ do {									\
 
 #define __this_cpu_cmpxchg_double_8	percpu_cmpxchg16b_double
 #define this_cpu_cmpxchg_double_8	percpu_cmpxchg16b_double
-#define irqsafe_cpu_cmpxchg_double_8	percpu_cmpxchg16b_double
 
 #endif
 
diff --git a/arch/x86/kernel/early_printk.c b/arch/x86/kernel/early_printk.c
index cd28a350f7f9..9d42a52d2331 100644
--- a/arch/x86/kernel/early_printk.c
+++ b/arch/x86/kernel/early_printk.c
@@ -247,7 +247,7 @@ static int __init setup_early_printk(char *buf)
 		}
 
 		if (!strncmp(buf, "hsu", 3)) {
-			hsu_early_console_init();
+			hsu_early_console_init(buf + 3);
 			early_console_register(&early_hsu_console, keep);
 		}
 #endif
diff --git a/arch/x86/kernel/kvm.c b/arch/x86/kernel/kvm.c
index a9c2116001d6..f0c6fd6f176b 100644
--- a/arch/x86/kernel/kvm.c
+++ b/arch/x86/kernel/kvm.c
@@ -39,8 +39,6 @@
 #include <asm/desc.h>
 #include <asm/tlbflush.h>
 
-#define MMU_QUEUE_SIZE 1024
-
 static int kvmapf = 1;
 
 static int parse_no_kvmapf(char *arg)
@@ -60,21 +58,10 @@ static int parse_no_stealacc(char *arg)
 
 early_param("no-steal-acc", parse_no_stealacc);
 
-struct kvm_para_state {
-	u8 mmu_queue[MMU_QUEUE_SIZE];
-	int mmu_queue_len;
-};
-
-static DEFINE_PER_CPU(struct kvm_para_state, para_state);
 static DEFINE_PER_CPU(struct kvm_vcpu_pv_apf_data, apf_reason) __aligned(64);
 static DEFINE_PER_CPU(struct kvm_steal_time, steal_time) __aligned(64);
 static int has_steal_clock = 0;
 
-static struct kvm_para_state *kvm_para_state(void)
-{
-	return &per_cpu(para_state, raw_smp_processor_id());
-}
-
 /*
  * No need for any "IO delay" on KVM
  */
@@ -271,151 +258,6 @@ do_async_page_fault(struct pt_regs *regs, unsigned long error_code)
 	}
 }
 
-static void kvm_mmu_op(void *buffer, unsigned len)
-{
-	int r;
-	unsigned long a1, a2;
-
-	do {
-		a1 = __pa(buffer);
-		a2 = 0;   /* on i386 __pa() always returns <4G */
-		r = kvm_hypercall3(KVM_HC_MMU_OP, len, a1, a2);
-		buffer += r;
-		len -= r;
-	} while (len);
-}
-
-static void mmu_queue_flush(struct kvm_para_state *state)
-{
-	if (state->mmu_queue_len) {
-		kvm_mmu_op(state->mmu_queue, state->mmu_queue_len);
-		state->mmu_queue_len = 0;
-	}
-}
-
-static void kvm_deferred_mmu_op(void *buffer, int len)
-{
-	struct kvm_para_state *state = kvm_para_state();
-
-	if (paravirt_get_lazy_mode() != PARAVIRT_LAZY_MMU) {
-		kvm_mmu_op(buffer, len);
-		return;
-	}
-	if (state->mmu_queue_len + len > sizeof state->mmu_queue)
-		mmu_queue_flush(state);
-	memcpy(state->mmu_queue + state->mmu_queue_len, buffer, len);
-	state->mmu_queue_len += len;
-}
-
-static void kvm_mmu_write(void *dest, u64 val)
-{
-	__u64 pte_phys;
-	struct kvm_mmu_op_write_pte wpte;
-
-#ifdef CONFIG_HIGHPTE
-	struct page *page;
-	unsigned long dst = (unsigned long) dest;
-
-	page = kmap_atomic_to_page(dest);
-	pte_phys = page_to_pfn(page);
-	pte_phys <<= PAGE_SHIFT;
-	pte_phys += (dst & ~(PAGE_MASK));
-#else
-	pte_phys = (unsigned long)__pa(dest);
-#endif
-	wpte.header.op = KVM_MMU_OP_WRITE_PTE;
-	wpte.pte_val = val;
-	wpte.pte_phys = pte_phys;
-
-	kvm_deferred_mmu_op(&wpte, sizeof wpte);
-}
-
-/*
- * We only need to hook operations that are MMU writes.  We hook these so that
- * we can use lazy MMU mode to batch these operations.  We could probably
- * improve the performance of the host code if we used some of the information
- * here to simplify processing of batched writes.
- */
-static void kvm_set_pte(pte_t *ptep, pte_t pte)
-{
-	kvm_mmu_write(ptep, pte_val(pte));
-}
-
-static void kvm_set_pte_at(struct mm_struct *mm, unsigned long addr,
-			   pte_t *ptep, pte_t pte)
-{
-	kvm_mmu_write(ptep, pte_val(pte));
-}
-
-static void kvm_set_pmd(pmd_t *pmdp, pmd_t pmd)
-{
-	kvm_mmu_write(pmdp, pmd_val(pmd));
-}
-
-#if PAGETABLE_LEVELS >= 3
-#ifdef CONFIG_X86_PAE
-static void kvm_set_pte_atomic(pte_t *ptep, pte_t pte)
-{
-	kvm_mmu_write(ptep, pte_val(pte));
-}
-
-static void kvm_pte_clear(struct mm_struct *mm,
-			  unsigned long addr, pte_t *ptep)
-{
-	kvm_mmu_write(ptep, 0);
-}
-
-static void kvm_pmd_clear(pmd_t *pmdp)
-{
-	kvm_mmu_write(pmdp, 0);
-}
-#endif
-
-static void kvm_set_pud(pud_t *pudp, pud_t pud)
-{
-	kvm_mmu_write(pudp, pud_val(pud));
-}
-
-#if PAGETABLE_LEVELS == 4
-static void kvm_set_pgd(pgd_t *pgdp, pgd_t pgd)
-{
-	kvm_mmu_write(pgdp, pgd_val(pgd));
-}
-#endif
-#endif /* PAGETABLE_LEVELS >= 3 */
-
-static void kvm_flush_tlb(void)
-{
-	struct kvm_mmu_op_flush_tlb ftlb = {
-		.header.op = KVM_MMU_OP_FLUSH_TLB,
-	};
-
-	kvm_deferred_mmu_op(&ftlb, sizeof ftlb);
-}
-
-static void kvm_release_pt(unsigned long pfn)
-{
-	struct kvm_mmu_op_release_pt rpt = {
-		.header.op = KVM_MMU_OP_RELEASE_PT,
-		.pt_phys = (u64)pfn << PAGE_SHIFT,
-	};
-
-	kvm_mmu_op(&rpt, sizeof rpt);
-}
-
-static void kvm_enter_lazy_mmu(void)
-{
-	paravirt_enter_lazy_mmu();
-}
-
-static void kvm_leave_lazy_mmu(void)
-{
-	struct kvm_para_state *state = kvm_para_state();
-
-	mmu_queue_flush(state);
-	paravirt_leave_lazy_mmu();
-}
-
 static void __init paravirt_ops_setup(void)
 {
 	pv_info.name = "KVM";
@@ -424,29 +266,6 @@ static void __init paravirt_ops_setup(void)
 	if (kvm_para_has_feature(KVM_FEATURE_NOP_IO_DELAY))
 		pv_cpu_ops.io_delay = kvm_io_delay;
 
-	if (kvm_para_has_feature(KVM_FEATURE_MMU_OP)) {
-		pv_mmu_ops.set_pte = kvm_set_pte;
-		pv_mmu_ops.set_pte_at = kvm_set_pte_at;
-		pv_mmu_ops.set_pmd = kvm_set_pmd;
-#if PAGETABLE_LEVELS >= 3
-#ifdef CONFIG_X86_PAE
-		pv_mmu_ops.set_pte_atomic = kvm_set_pte_atomic;
-		pv_mmu_ops.pte_clear = kvm_pte_clear;
-		pv_mmu_ops.pmd_clear = kvm_pmd_clear;
-#endif
-		pv_mmu_ops.set_pud = kvm_set_pud;
-#if PAGETABLE_LEVELS == 4
-		pv_mmu_ops.set_pgd = kvm_set_pgd;
-#endif
-#endif
-		pv_mmu_ops.flush_tlb_user = kvm_flush_tlb;
-		pv_mmu_ops.release_pte = kvm_release_pt;
-		pv_mmu_ops.release_pmd = kvm_release_pt;
-		pv_mmu_ops.release_pud = kvm_release_pt;
-
-		pv_mmu_ops.lazy_mode.enter = kvm_enter_lazy_mmu;
-		pv_mmu_ops.lazy_mode.leave = kvm_leave_lazy_mmu;
-	}
 #ifdef CONFIG_X86_IO_APIC
 	no_timer_check = 1;
 #endif
diff --git a/arch/x86/kernel/pci-dma.c b/arch/x86/kernel/pci-dma.c
index 80dc793b3f63..1c4d769e21ea 100644
--- a/arch/x86/kernel/pci-dma.c
+++ b/arch/x86/kernel/pci-dma.c
@@ -45,6 +45,15 @@ int iommu_detected __read_mostly = 0;
  */
 int iommu_pass_through __read_mostly;
 
+/*
+ * Group multi-function PCI devices into a single device-group for the
+ * iommu_device_group interface.  This tells the iommu driver to pretend
+ * it cannot distinguish between functions of a device, exposing only one
+ * group for the device.  Useful for disallowing use of individual PCI
+ * functions from userspace drivers.
+ */
+int iommu_group_mf __read_mostly;
+
 extern struct iommu_table_entry __iommu_table[], __iommu_table_end[];
 
 /* Dummy device used for NULL arguments (normally ISA). */
@@ -169,6 +178,8 @@ static __init int iommu_setup(char *p)
 #endif
 		if (!strncmp(p, "pt", 2))
 			iommu_pass_through = 1;
+		if (!strncmp(p, "group_mf", 8))
+			iommu_group_mf = 1;
 
 		gart_parse_options(p);
 
diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c
index 54ddaeb221c1..46a01bdc27e2 100644
--- a/arch/x86/kernel/signal.c
+++ b/arch/x86/kernel/signal.c
@@ -682,7 +682,6 @@ static int
 handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
 		struct pt_regs *regs)
 {
-	sigset_t blocked;
 	int ret;
 
 	/* Are we from a system call? */
@@ -733,10 +732,7 @@ handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka,
 	 */
 	regs->flags &= ~X86_EFLAGS_TF;
 
-	sigorsets(&blocked, &current->blocked, &ka->sa.sa_mask);
-	if (!(ka->sa.sa_flags & SA_NODEFER))
-		sigaddset(&blocked, sig);
-	set_current_blocked(&blocked);
+	block_sigmask(ka, sig);
 
 	tracehook_signal_handler(sig, info, ka, regs,
 				 test_thread_flag(TIF_SINGLESTEP));
diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig
index ff5790d8e990..1a7fe868f375 100644
--- a/arch/x86/kvm/Kconfig
+++ b/arch/x86/kvm/Kconfig
@@ -35,6 +35,7 @@ config KVM
 	select KVM_MMIO
 	select TASKSTATS
 	select TASK_DELAY_ACCT
+	select PERF_EVENTS
 	---help---
 	  Support hosting fully virtualized guest machines using hardware
 	  virtualization extensions.  You will need a fairly recent
@@ -52,6 +53,8 @@ config KVM
 config KVM_INTEL
 	tristate "KVM for Intel processors support"
 	depends on KVM
+	# for perf_guest_get_msrs():
+	depends on CPU_SUP_INTEL
 	---help---
 	  Provides support for KVM on Intel processors equipped with the VT
 	  extensions.
diff --git a/arch/x86/kvm/Makefile b/arch/x86/kvm/Makefile
index f15501f431c8..4f579e8dcacf 100644
--- a/arch/x86/kvm/Makefile
+++ b/arch/x86/kvm/Makefile
@@ -12,7 +12,7 @@ kvm-$(CONFIG_IOMMU_API)	+= $(addprefix ../../../virt/kvm/, iommu.o)
 kvm-$(CONFIG_KVM_ASYNC_PF)	+= $(addprefix ../../../virt/kvm/, async_pf.o)
 
 kvm-y			+= x86.o mmu.o emulate.o i8259.o irq.o lapic.o \
-			   i8254.o timer.o
+			   i8254.o timer.o cpuid.o pmu.o
 kvm-intel-y		+= vmx.o
 kvm-amd-y		+= svm.o
 
diff --git a/arch/x86/kvm/cpuid.c b/arch/x86/kvm/cpuid.c
new file mode 100644
index 000000000000..89b02bfaaca5
--- /dev/null
+++ b/arch/x86/kvm/cpuid.c
@@ -0,0 +1,670 @@
+/*
+ * Kernel-based Virtual Machine driver for Linux
+ * cpuid support routines
+ *
+ * derived from arch/x86/kvm/x86.c
+ *
+ * Copyright 2011 Red Hat, Inc. and/or its affiliates.
+ * Copyright IBM Corporation, 2008
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2.  See
+ * the COPYING file in the top-level directory.
+ *
+ */
+
+#include <linux/kvm_host.h>
+#include <linux/module.h>
+#include <linux/vmalloc.h>
+#include <linux/uaccess.h>
+#include <asm/user.h>
+#include <asm/xsave.h>
+#include "cpuid.h"
+#include "lapic.h"
+#include "mmu.h"
+#include "trace.h"
+
+void kvm_update_cpuid(struct kvm_vcpu *vcpu)
+{
+	struct kvm_cpuid_entry2 *best;
+	struct kvm_lapic *apic = vcpu->arch.apic;
+
+	best = kvm_find_cpuid_entry(vcpu, 1, 0);
+	if (!best)
+		return;
+
+	/* Update OSXSAVE bit */
+	if (cpu_has_xsave && best->function == 0x1) {
+		best->ecx &= ~(bit(X86_FEATURE_OSXSAVE));
+		if (kvm_read_cr4_bits(vcpu, X86_CR4_OSXSAVE))
+			best->ecx |= bit(X86_FEATURE_OSXSAVE);
+	}
+
+	if (apic) {
+		if (best->ecx & bit(X86_FEATURE_TSC_DEADLINE_TIMER))
+			apic->lapic_timer.timer_mode_mask = 3 << 17;
+		else
+			apic->lapic_timer.timer_mode_mask = 1 << 17;
+	}
+
+	kvm_pmu_cpuid_update(vcpu);
+}
+
+static int is_efer_nx(void)
+{
+	unsigned long long efer = 0;
+
+	rdmsrl_safe(MSR_EFER, &efer);
+	return efer & EFER_NX;
+}
+
+static void cpuid_fix_nx_cap(struct kvm_vcpu *vcpu)
+{
+	int i;
+	struct kvm_cpuid_entry2 *e, *entry;
+
+	entry = NULL;
+	for (i = 0; i < vcpu->arch.cpuid_nent; ++i) {
+		e = &vcpu->arch.cpuid_entries[i];
+		if (e->function == 0x80000001) {
+			entry = e;
+			break;
+		}
+	}
+	if (entry && (entry->edx & (1 << 20)) && !is_efer_nx()) {
+		entry->edx &= ~(1 << 20);
+		printk(KERN_INFO "kvm: guest NX capability removed\n");
+	}
+}
+
+/* when an old userspace process fills a new kernel module */
+int kvm_vcpu_ioctl_set_cpuid(struct kvm_vcpu *vcpu,
+			     struct kvm_cpuid *cpuid,
+			     struct kvm_cpuid_entry __user *entries)
+{
+	int r, i;
+	struct kvm_cpuid_entry *cpuid_entries;
+
+	r = -E2BIG;
+	if (cpuid->nent > KVM_MAX_CPUID_ENTRIES)
+		goto out;
+	r = -ENOMEM;
+	cpuid_entries = vmalloc(sizeof(struct kvm_cpuid_entry) * cpuid->nent);
+	if (!cpuid_entries)
+		goto out;
+	r = -EFAULT;
+	if (copy_from_user(cpuid_entries, entries,
+			   cpuid->nent * sizeof(struct kvm_cpuid_entry)))
+		goto out_free;
+	for (i = 0; i < cpuid->nent; i++) {
+		vcpu->arch.cpuid_entries[i].function = cpuid_entries[i].function;
+		vcpu->arch.cpuid_entries[i].eax = cpuid_entries[i].eax;
+		vcpu->arch.cpuid_entries[i].ebx = cpuid_entries[i].ebx;
+		vcpu->arch.cpuid_entries[i].ecx = cpuid_entries[i].ecx;
+		vcpu->arch.cpuid_entries[i].edx = cpuid_entries[i].edx;
+		vcpu->arch.cpuid_entries[i].index = 0;
+		vcpu->arch.cpuid_entries[i].flags = 0;
+		vcpu->arch.cpuid_entries[i].padding[0] = 0;
+		vcpu->arch.cpuid_entries[i].padding[1] = 0;
+		vcpu->arch.cpuid_entries[i].padding[2] = 0;
+	}
+	vcpu->arch.cpuid_nent = cpuid->nent;
+	cpuid_fix_nx_cap(vcpu);
+	r = 0;
+	kvm_apic_set_version(vcpu);
+	kvm_x86_ops->cpuid_update(vcpu);
+	kvm_update_cpuid(vcpu);
+
+out_free:
+	vfree(cpuid_entries);
+out:
+	return r;
+}
+
+int kvm_vcpu_ioctl_set_cpuid2(struct kvm_vcpu *vcpu,
+			      struct kvm_cpuid2 *cpuid,
+			      struct kvm_cpuid_entry2 __user *entries)
+{
+	int r;
+
+	r = -E2BIG;
+	if (cpuid->nent > KVM_MAX_CPUID_ENTRIES)
+		goto out;
+	r = -EFAULT;
+	if (copy_from_user(&vcpu->arch.cpuid_entries, entries,
+			   cpuid->nent * sizeof(struct kvm_cpuid_entry2)))
+		goto out;
+	vcpu->arch.cpuid_nent = cpuid->nent;
+	kvm_apic_set_version(vcpu);
+	kvm_x86_ops->cpuid_update(vcpu);
+	kvm_update_cpuid(vcpu);
+	return 0;
+
+out:
+	return r;
+}
+
+int kvm_vcpu_ioctl_get_cpuid2(struct kvm_vcpu *vcpu,
+			      struct kvm_cpuid2 *cpuid,
+			      struct kvm_cpuid_entry2 __user *entries)
+{
+	int r;
+
+	r = -E2BIG;
+	if (cpuid->nent < vcpu->arch.cpuid_nent)
+		goto out;
+	r = -EFAULT;
+	if (copy_to_user(entries, &vcpu->arch.cpuid_entries,
+			 vcpu->arch.cpuid_nent * sizeof(struct kvm_cpuid_entry2)))
+		goto out;
+	return 0;
+
+out:
+	cpuid->nent = vcpu->arch.cpuid_nent;
+	return r;
+}
+
+static void cpuid_mask(u32 *word, int wordnum)
+{
+	*word &= boot_cpu_data.x86_capability[wordnum];
+}
+
+static void do_cpuid_1_ent(struct kvm_cpuid_entry2 *entry, u32 function,
+			   u32 index)
+{
+	entry->function = function;
+	entry->index = index;
+	cpuid_count(entry->function, entry->index,
+		    &entry->eax, &entry->ebx, &entry->ecx, &entry->edx);
+	entry->flags = 0;
+}
+
+static bool supported_xcr0_bit(unsigned bit)
+{
+	u64 mask = ((u64)1 << bit);
+
+	return mask & (XSTATE_FP | XSTATE_SSE | XSTATE_YMM) & host_xcr0;
+}
+
+#define F(x) bit(X86_FEATURE_##x)
+
+static int do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function,
+			 u32 index, int *nent, int maxnent)
+{
+	int r;
+	unsigned f_nx = is_efer_nx() ? F(NX) : 0;
+#ifdef CONFIG_X86_64
+	unsigned f_gbpages = (kvm_x86_ops->get_lpage_level() == PT_PDPE_LEVEL)
+				? F(GBPAGES) : 0;
+	unsigned f_lm = F(LM);
+#else
+	unsigned f_gbpages = 0;
+	unsigned f_lm = 0;
+#endif
+	unsigned f_rdtscp = kvm_x86_ops->rdtscp_supported() ? F(RDTSCP) : 0;
+
+	/* cpuid 1.edx */
+	const u32 kvm_supported_word0_x86_features =
+		F(FPU) | F(VME) | F(DE) | F(PSE) |
+		F(TSC) | F(MSR) | F(PAE) | F(MCE) |
+		F(CX8) | F(APIC) | 0 /* Reserved */ | F(SEP) |
+		F(MTRR) | F(PGE) | F(MCA) | F(CMOV) |
+		F(PAT) | F(PSE36) | 0 /* PSN */ | F(CLFLSH) |
+		0 /* Reserved, DS, ACPI */ | F(MMX) |
+		F(FXSR) | F(XMM) | F(XMM2) | F(SELFSNOOP) |
+		0 /* HTT, TM, Reserved, PBE */;
+	/* cpuid 0x80000001.edx */
+	const u32 kvm_supported_word1_x86_features =
+		F(FPU) | F(VME) | F(DE) | F(PSE) |
+		F(TSC) | F(MSR) | F(PAE) | F(MCE) |
+		F(CX8) | F(APIC) | 0 /* Reserved */ | F(SYSCALL) |
+		F(MTRR) | F(PGE) | F(MCA) | F(CMOV) |
+		F(PAT) | F(PSE36) | 0 /* Reserved */ |
+		f_nx | 0 /* Reserved */ | F(MMXEXT) | F(MMX) |
+		F(FXSR) | F(FXSR_OPT) | f_gbpages | f_rdtscp |
+		0 /* Reserved */ | f_lm | F(3DNOWEXT) | F(3DNOW);
+	/* cpuid 1.ecx */
+	const u32 kvm_supported_word4_x86_features =
+		F(XMM3) | F(PCLMULQDQ) | 0 /* DTES64, MONITOR */ |
+		0 /* DS-CPL, VMX, SMX, EST */ |
+		0 /* TM2 */ | F(SSSE3) | 0 /* CNXT-ID */ | 0 /* Reserved */ |
+		F(FMA) | F(CX16) | 0 /* xTPR Update, PDCM */ |
+		0 /* Reserved, DCA */ | F(XMM4_1) |
+		F(XMM4_2) | F(X2APIC) | F(MOVBE) | F(POPCNT) |
+		0 /* Reserved*/ | F(AES) | F(XSAVE) | 0 /* OSXSAVE */ | F(AVX) |
+		F(F16C) | F(RDRAND);
+	/* cpuid 0x80000001.ecx */
+	const u32 kvm_supported_word6_x86_features =
+		F(LAHF_LM) | F(CMP_LEGACY) | 0 /*SVM*/ | 0 /* ExtApicSpace */ |
+		F(CR8_LEGACY) | F(ABM) | F(SSE4A) | F(MISALIGNSSE) |
+		F(3DNOWPREFETCH) | 0 /* OSVW */ | 0 /* IBS */ | F(XOP) |
+		0 /* SKINIT, WDT, LWP */ | F(FMA4) | F(TBM);
+
+	/* cpuid 0xC0000001.edx */
+	const u32 kvm_supported_word5_x86_features =
+		F(XSTORE) | F(XSTORE_EN) | F(XCRYPT) | F(XCRYPT_EN) |
+		F(ACE2) | F(ACE2_EN) | F(PHE) | F(PHE_EN) |
+		F(PMM) | F(PMM_EN);
+
+	/* cpuid 7.0.ebx */
+	const u32 kvm_supported_word9_x86_features =
+		F(FSGSBASE) | F(BMI1) | F(AVX2) | F(SMEP) | F(BMI2) | F(ERMS);
+
+	/* all calls to cpuid_count() should be made on the same cpu */
+	get_cpu();
+
+	r = -E2BIG;
+
+	if (*nent >= maxnent)
+		goto out;
+
+	do_cpuid_1_ent(entry, function, index);
+	++*nent;
+
+	switch (function) {
+	case 0:
+		entry->eax = min(entry->eax, (u32)0xd);
+		break;
+	case 1:
+		entry->edx &= kvm_supported_word0_x86_features;
+		cpuid_mask(&entry->edx, 0);
+		entry->ecx &= kvm_supported_word4_x86_features;
+		cpuid_mask(&entry->ecx, 4);
+		/* we support x2apic emulation even if host does not support
+		 * it since we emulate x2apic in software */
+		entry->ecx |= F(X2APIC);
+		break;
+	/* function 2 entries are STATEFUL. That is, repeated cpuid commands
+	 * may return different values. This forces us to get_cpu() before
+	 * issuing the first command, and also to emulate this annoying behavior
+	 * in kvm_emulate_cpuid() using KVM_CPUID_FLAG_STATE_READ_NEXT */
+	case 2: {
+		int t, times = entry->eax & 0xff;
+
+		entry->flags |= KVM_CPUID_FLAG_STATEFUL_FUNC;
+		entry->flags |= KVM_CPUID_FLAG_STATE_READ_NEXT;
+		for (t = 1; t < times; ++t) {
+			if (*nent >= maxnent)
+				goto out;
+
+			do_cpuid_1_ent(&entry[t], function, 0);
+			entry[t].flags |= KVM_CPUID_FLAG_STATEFUL_FUNC;
+			++*nent;
+		}
+		break;
+	}
+	/* function 4 has additional index. */
+	case 4: {
+		int i, cache_type;
+
+		entry->flags |= KVM_CPUID_FLAG_SIGNIFCANT_INDEX;
+		/* read more entries until cache_type is zero */
+		for (i = 1; ; ++i) {
+			if (*nent >= maxnent)
+				goto out;
+
+			cache_type = entry[i - 1].eax & 0x1f;
+			if (!cache_type)
+				break;
+			do_cpuid_1_ent(&entry[i], function, i);
+			entry[i].flags |=
+			       KVM_CPUID_FLAG_SIGNIFCANT_INDEX;
+			++*nent;
+		}
+		break;
+	}
+	case 7: {
+		entry->flags |= KVM_CPUID_FLAG_SIGNIFCANT_INDEX;
+		/* Mask ebx against host capbability word 9 */
+		if (index == 0) {
+			entry->ebx &= kvm_supported_word9_x86_features;
+			cpuid_mask(&entry->ebx, 9);
+		} else
+			entry->ebx = 0;
+		entry->eax = 0;
+		entry->ecx = 0;
+		entry->edx = 0;
+		break;
+	}
+	case 9:
+		break;
+	case 0xa: { /* Architectural Performance Monitoring */
+		struct x86_pmu_capability cap;
+		union cpuid10_eax eax;
+		union cpuid10_edx edx;
+
+		perf_get_x86_pmu_capability(&cap);
+
+		/*
+		 * Only support guest architectural pmu on a host
+		 * with architectural pmu.
+		 */
+		if (!cap.version)
+			memset(&cap, 0, sizeof(cap));
+
+		eax.split.version_id = min(cap.version, 2);
+		eax.split.num_counters = cap.num_counters_gp;
+		eax.split.bit_width = cap.bit_width_gp;
+		eax.split.mask_length = cap.events_mask_len;
+
+		edx.split.num_counters_fixed = cap.num_counters_fixed;
+		edx.split.bit_width_fixed = cap.bit_width_fixed;
+		edx.split.reserved = 0;
+
+		entry->eax = eax.full;
+		entry->ebx = cap.events_mask;
+		entry->ecx = 0;
+		entry->edx = edx.full;
+		break;
+	}
+	/* function 0xb has additional index. */
+	case 0xb: {
+		int i, level_type;
+
+		entry->flags |= KVM_CPUID_FLAG_SIGNIFCANT_INDEX;
+		/* read more entries until level_type is zero */
+		for (i = 1; ; ++i) {
+			if (*nent >= maxnent)
+				goto out;
+
+			level_type = entry[i - 1].ecx & 0xff00;
+			if (!level_type)
+				break;
+			do_cpuid_1_ent(&entry[i], function, i);
+			entry[i].flags |=
+			       KVM_CPUID_FLAG_SIGNIFCANT_INDEX;
+			++*nent;
+		}
+		break;
+	}
+	case 0xd: {
+		int idx, i;
+
+		entry->flags |= KVM_CPUID_FLAG_SIGNIFCANT_INDEX;
+		for (idx = 1, i = 1; idx < 64; ++idx) {
+			if (*nent >= maxnent)
+				goto out;
+
+			do_cpuid_1_ent(&entry[i], function, idx);
+			if (entry[i].eax == 0 || !supported_xcr0_bit(idx))
+				continue;
+			entry[i].flags |=
+			       KVM_CPUID_FLAG_SIGNIFCANT_INDEX;
+			++*nent;
+			++i;
+		}
+		break;
+	}
+	case KVM_CPUID_SIGNATURE: {
+		char signature[12] = "KVMKVMKVM\0\0";
+		u32 *sigptr = (u32 *)signature;
+		entry->eax = 0;
+		entry->ebx = sigptr[0];
+		entry->ecx = sigptr[1];
+		entry->edx = sigptr[2];
+		break;
+	}
+	case KVM_CPUID_FEATURES:
+		entry->eax = (1 << KVM_FEATURE_CLOCKSOURCE) |
+			     (1 << KVM_FEATURE_NOP_IO_DELAY) |
+			     (1 << KVM_FEATURE_CLOCKSOURCE2) |
+			     (1 << KVM_FEATURE_ASYNC_PF) |
+			     (1 << KVM_FEATURE_CLOCKSOURCE_STABLE_BIT);
+
+		if (sched_info_on())
+			entry->eax |= (1 << KVM_FEATURE_STEAL_TIME);
+
+		entry->ebx = 0;
+		entry->ecx = 0;
+		entry->edx = 0;
+		break;
+	case 0x80000000:
+		entry->eax = min(entry->eax, 0x8000001a);
+		break;
+	case 0x80000001:
+		entry->edx &= kvm_supported_word1_x86_features;
+		cpuid_mask(&entry->edx, 1);
+		entry->ecx &= kvm_supported_word6_x86_features;
+		cpuid_mask(&entry->ecx, 6);
+		break;
+	case 0x80000008: {
+		unsigned g_phys_as = (entry->eax >> 16) & 0xff;
+		unsigned virt_as = max((entry->eax >> 8) & 0xff, 48U);
+		unsigned phys_as = entry->eax & 0xff;
+
+		if (!g_phys_as)
+			g_phys_as = phys_as;
+		entry->eax = g_phys_as | (virt_as << 8);
+		entry->ebx = entry->edx = 0;
+		break;
+	}
+	case 0x80000019:
+		entry->ecx = entry->edx = 0;
+		break;
+	case 0x8000001a:
+		break;
+	case 0x8000001d:
+		break;
+	/*Add support for Centaur's CPUID instruction*/
+	case 0xC0000000:
+		/*Just support up to 0xC0000004 now*/
+		entry->eax = min(entry->eax, 0xC0000004);
+		break;
+	case 0xC0000001:
+		entry->edx &= kvm_supported_word5_x86_features;
+		cpuid_mask(&entry->edx, 5);
+		break;
+	case 3: /* Processor serial number */
+	case 5: /* MONITOR/MWAIT */
+	case 6: /* Thermal management */
+	case 0x80000007: /* Advanced power management */
+	case 0xC0000002:
+	case 0xC0000003:
+	case 0xC0000004:
+	default:
+		entry->eax = entry->ebx = entry->ecx = entry->edx = 0;
+		break;
+	}
+
+	kvm_x86_ops->set_supported_cpuid(function, entry);
+
+	r = 0;
+
+out:
+	put_cpu();
+
+	return r;
+}
+
+#undef F
+
+struct kvm_cpuid_param {
+	u32 func;
+	u32 idx;
+	bool has_leaf_count;
+	bool (*qualifier)(struct kvm_cpuid_param *param);
+};
+
+static bool is_centaur_cpu(struct kvm_cpuid_param *param)
+{
+	return boot_cpu_data.x86_vendor == X86_VENDOR_CENTAUR;
+}
+
+int kvm_dev_ioctl_get_supported_cpuid(struct kvm_cpuid2 *cpuid,
+				      struct kvm_cpuid_entry2 __user *entries)
+{
+	struct kvm_cpuid_entry2 *cpuid_entries;
+	int limit, nent = 0, r = -E2BIG, i;
+	u32 func;
+	static struct kvm_cpuid_param param[] = {
+		{ .func = 0, .has_leaf_count = true },
+		{ .func = 0x80000000, .has_leaf_count = true },
+		{ .func = 0xC0000000, .qualifier = is_centaur_cpu, .has_leaf_count = true },
+		{ .func = KVM_CPUID_SIGNATURE },
+		{ .func = KVM_CPUID_FEATURES },
+	};
+
+	if (cpuid->nent < 1)
+		goto out;
+	if (cpuid->nent > KVM_MAX_CPUID_ENTRIES)
+		cpuid->nent = KVM_MAX_CPUID_ENTRIES;
+	r = -ENOMEM;
+	cpuid_entries = vmalloc(sizeof(struct kvm_cpuid_entry2) * cpuid->nent);
+	if (!cpuid_entries)
+		goto out;
+
+	r = 0;
+	for (i = 0; i < ARRAY_SIZE(param); i++) {
+		struct kvm_cpuid_param *ent = &param[i];
+
+		if (ent->qualifier && !ent->qualifier(ent))
+			continue;
+
+		r = do_cpuid_ent(&cpuid_entries[nent], ent->func, ent->idx,
+				&nent, cpuid->nent);
+
+		if (r)
+			goto out_free;
+
+		if (!ent->has_leaf_count)
+			continue;
+
+		limit = cpuid_entries[nent - 1].eax;
+		for (func = ent->func + 1; func <= limit && nent < cpuid->nent && r == 0; ++func)
+			r = do_cpuid_ent(&cpuid_entries[nent], func, ent->idx,
+				     &nent, cpuid->nent);
+
+		if (r)
+			goto out_free;
+	}
+
+	r = -EFAULT;
+	if (copy_to_user(entries, cpuid_entries,
+			 nent * sizeof(struct kvm_cpuid_entry2)))
+		goto out_free;
+	cpuid->nent = nent;
+	r = 0;
+
+out_free:
+	vfree(cpuid_entries);
+out:
+	return r;
+}
+
+static int move_to_next_stateful_cpuid_entry(struct kvm_vcpu *vcpu, int i)
+{
+	struct kvm_cpuid_entry2 *e = &vcpu->arch.cpuid_entries[i];
+	int j, nent = vcpu->arch.cpuid_nent;
+
+	e->flags &= ~KVM_CPUID_FLAG_STATE_READ_NEXT;
+	/* when no next entry is found, the current entry[i] is reselected */
+	for (j = i + 1; ; j = (j + 1) % nent) {
+		struct kvm_cpuid_entry2 *ej = &vcpu->arch.cpuid_entries[j];
+		if (ej->function == e->function) {
+			ej->flags |= KVM_CPUID_FLAG_STATE_READ_NEXT;
+			return j;
+		}
+	}
+	return 0; /* silence gcc, even though control never reaches here */
+}
+
+/* find an entry with matching function, matching index (if needed), and that
+ * should be read next (if it's stateful) */
+static int is_matching_cpuid_entry(struct kvm_cpuid_entry2 *e,
+	u32 function, u32 index)
+{
+	if (e->function != function)
+		return 0;
+	if ((e->flags & KVM_CPUID_FLAG_SIGNIFCANT_INDEX) && e->index != index)
+		return 0;
+	if ((e->flags & KVM_CPUID_FLAG_STATEFUL_FUNC) &&
+	    !(e->flags & KVM_CPUID_FLAG_STATE_READ_NEXT))
+		return 0;
+	return 1;
+}
+
+struct kvm_cpuid_entry2 *kvm_find_cpuid_entry(struct kvm_vcpu *vcpu,
+					      u32 function, u32 index)
+{
+	int i;
+	struct kvm_cpuid_entry2 *best = NULL;
+
+	for (i = 0; i < vcpu->arch.cpuid_nent; ++i) {
+		struct kvm_cpuid_entry2 *e;
+
+		e = &vcpu->arch.cpuid_entries[i];
+		if (is_matching_cpuid_entry(e, function, index)) {
+			if (e->flags & KVM_CPUID_FLAG_STATEFUL_FUNC)
+				move_to_next_stateful_cpuid_entry(vcpu, i);
+			best = e;
+			break;
+		}
+	}
+	return best;
+}
+EXPORT_SYMBOL_GPL(kvm_find_cpuid_entry);
+
+int cpuid_maxphyaddr(struct kvm_vcpu *vcpu)
+{
+	struct kvm_cpuid_entry2 *best;
+
+	best = kvm_find_cpuid_entry(vcpu, 0x80000000, 0);
+	if (!best || best->eax < 0x80000008)
+		goto not_found;
+	best = kvm_find_cpuid_entry(vcpu, 0x80000008, 0);
+	if (best)
+		return best->eax & 0xff;
+not_found:
+	return 36;
+}
+
+/*
+ * If no match is found, check whether we exceed the vCPU's limit
+ * and return the content of the highest valid _standard_ leaf instead.
+ * This is to satisfy the CPUID specification.
+ */
+static struct kvm_cpuid_entry2* check_cpuid_limit(struct kvm_vcpu *vcpu,
+                                                  u32 function, u32 index)
+{
+	struct kvm_cpuid_entry2 *maxlevel;
+
+	maxlevel = kvm_find_cpuid_entry(vcpu, function & 0x80000000, 0);
+	if (!maxlevel || maxlevel->eax >= function)
+		return NULL;
+	if (function & 0x80000000) {
+		maxlevel = kvm_find_cpuid_entry(vcpu, 0, 0);
+		if (!maxlevel)
+			return NULL;
+	}
+	return kvm_find_cpuid_entry(vcpu, maxlevel->eax, index);
+}
+
+void kvm_emulate_cpuid(struct kvm_vcpu *vcpu)
+{
+	u32 function, index;
+	struct kvm_cpuid_entry2 *best;
+
+	function = kvm_register_read(vcpu, VCPU_REGS_RAX);
+	index = kvm_register_read(vcpu, VCPU_REGS_RCX);
+	kvm_register_write(vcpu, VCPU_REGS_RAX, 0);
+	kvm_register_write(vcpu, VCPU_REGS_RBX, 0);
+	kvm_register_write(vcpu, VCPU_REGS_RCX, 0);
+	kvm_register_write(vcpu, VCPU_REGS_RDX, 0);
+	best = kvm_find_cpuid_entry(vcpu, function, index);
+
+	if (!best)
+		best = check_cpuid_limit(vcpu, function, index);
+
+	if (best) {
+		kvm_register_write(vcpu, VCPU_REGS_RAX, best->eax);
+		kvm_register_write(vcpu, VCPU_REGS_RBX, best->ebx);
+		kvm_register_write(vcpu, VCPU_REGS_RCX, best->ecx);
+		kvm_register_write(vcpu, VCPU_REGS_RDX, best->edx);
+	}
+	kvm_x86_ops->skip_emulated_instruction(vcpu);
+	trace_kvm_cpuid(function,
+			kvm_register_read(vcpu, VCPU_REGS_RAX),
+			kvm_register_read(vcpu, VCPU_REGS_RBX),
+			kvm_register_read(vcpu, VCPU_REGS_RCX),
+			kvm_register_read(vcpu, VCPU_REGS_RDX));
+}
+EXPORT_SYMBOL_GPL(kvm_emulate_cpuid);
diff --git a/arch/x86/kvm/cpuid.h b/arch/x86/kvm/cpuid.h
new file mode 100644
index 000000000000..5b97e1797a6d
--- /dev/null
+++ b/arch/x86/kvm/cpuid.h
@@ -0,0 +1,46 @@
+#ifndef ARCH_X86_KVM_CPUID_H
+#define ARCH_X86_KVM_CPUID_H
+
+#include "x86.h"
+
+void kvm_update_cpuid(struct kvm_vcpu *vcpu);
+struct kvm_cpuid_entry2 *kvm_find_cpuid_entry(struct kvm_vcpu *vcpu,
+					      u32 function, u32 index);
+int kvm_dev_ioctl_get_supported_cpuid(struct kvm_cpuid2 *cpuid,
+				      struct kvm_cpuid_entry2 __user *entries);
+int kvm_vcpu_ioctl_set_cpuid(struct kvm_vcpu *vcpu,
+			     struct kvm_cpuid *cpuid,
+			     struct kvm_cpuid_entry __user *entries);
+int kvm_vcpu_ioctl_set_cpuid2(struct kvm_vcpu *vcpu,
+			      struct kvm_cpuid2 *cpuid,
+			      struct kvm_cpuid_entry2 __user *entries);
+int kvm_vcpu_ioctl_get_cpuid2(struct kvm_vcpu *vcpu,
+			      struct kvm_cpuid2 *cpuid,
+			      struct kvm_cpuid_entry2 __user *entries);
+
+
+static inline bool guest_cpuid_has_xsave(struct kvm_vcpu *vcpu)
+{
+	struct kvm_cpuid_entry2 *best;
+
+	best = kvm_find_cpuid_entry(vcpu, 1, 0);
+	return best && (best->ecx & bit(X86_FEATURE_XSAVE));
+}
+
+static inline bool guest_cpuid_has_smep(struct kvm_vcpu *vcpu)
+{
+	struct kvm_cpuid_entry2 *best;
+
+	best = kvm_find_cpuid_entry(vcpu, 7, 0);
+	return best && (best->ebx & bit(X86_FEATURE_SMEP));
+}
+
+static inline bool guest_cpuid_has_fsgsbase(struct kvm_vcpu *vcpu)
+{
+	struct kvm_cpuid_entry2 *best;
+
+	best = kvm_find_cpuid_entry(vcpu, 7, 0);
+	return best && (best->ebx & bit(X86_FEATURE_FSGSBASE));
+}
+
+#endif
diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c
index f1e3be18a08f..05a562b85025 100644
--- a/arch/x86/kvm/emulate.c
+++ b/arch/x86/kvm/emulate.c
@@ -125,8 +125,9 @@
 #define Lock        (1<<26) /* lock prefix is allowed for the instruction */
 #define Priv        (1<<27) /* instruction generates #GP if current CPL != 0 */
 #define No64	    (1<<28)
+#define PageTable   (1 << 29)   /* instruction used to write page table */
 /* Source 2 operand type */
-#define Src2Shift   (29)
+#define Src2Shift   (30)
 #define Src2None    (OpNone << Src2Shift)
 #define Src2CL      (OpCL << Src2Shift)
 #define Src2ImmByte (OpImmByte << Src2Shift)
@@ -1674,11 +1675,6 @@ static int em_jmp_far(struct x86_emulate_ctxt *ctxt)
 	return X86EMUL_CONTINUE;
 }
 
-static int em_grp1a(struct x86_emulate_ctxt *ctxt)
-{
-	return emulate_pop(ctxt, &ctxt->dst.val, ctxt->dst.bytes);
-}
-
 static int em_grp2(struct x86_emulate_ctxt *ctxt)
 {
 	switch (ctxt->modrm_reg) {
@@ -1788,7 +1784,7 @@ static int em_grp45(struct x86_emulate_ctxt *ctxt)
 	return rc;
 }
 
-static int em_grp9(struct x86_emulate_ctxt *ctxt)
+static int em_cmpxchg8b(struct x86_emulate_ctxt *ctxt)
 {
 	u64 old = ctxt->dst.orig_val64;
 
@@ -1831,6 +1827,24 @@ static int em_ret_far(struct x86_emulate_ctxt *ctxt)
 	return rc;
 }
 
+static int em_cmpxchg(struct x86_emulate_ctxt *ctxt)
+{
+	/* Save real source value, then compare EAX against destination. */
+	ctxt->src.orig_val = ctxt->src.val;
+	ctxt->src.val = ctxt->regs[VCPU_REGS_RAX];
+	emulate_2op_SrcV(ctxt, "cmp");
+
+	if (ctxt->eflags & EFLG_ZF) {
+		/* Success: write back to memory. */
+		ctxt->dst.val = ctxt->src.orig_val;
+	} else {
+		/* Failure: write the value we saw to EAX. */
+		ctxt->dst.type = OP_REG;
+		ctxt->dst.addr.reg = (unsigned long *)&ctxt->regs[VCPU_REGS_RAX];
+	}
+	return X86EMUL_CONTINUE;
+}
+
 static int em_lseg(struct x86_emulate_ctxt *ctxt)
 {
 	int seg = ctxt->src2.val;
@@ -2481,6 +2495,15 @@ static int em_das(struct x86_emulate_ctxt *ctxt)
 	return X86EMUL_CONTINUE;
 }
 
+static int em_call(struct x86_emulate_ctxt *ctxt)
+{
+	long rel = ctxt->src.val;
+
+	ctxt->src.val = (unsigned long)ctxt->_eip;
+	jmp_rel(ctxt, rel);
+	return em_push(ctxt);
+}
+
 static int em_call_far(struct x86_emulate_ctxt *ctxt)
 {
 	u16 sel, old_cs;
@@ -2622,12 +2645,75 @@ static int em_rdtsc(struct x86_emulate_ctxt *ctxt)
 	return X86EMUL_CONTINUE;
 }
 
+static int em_rdpmc(struct x86_emulate_ctxt *ctxt)
+{
+	u64 pmc;
+
+	if (ctxt->ops->read_pmc(ctxt, ctxt->regs[VCPU_REGS_RCX], &pmc))
+		return emulate_gp(ctxt, 0);
+	ctxt->regs[VCPU_REGS_RAX] = (u32)pmc;
+	ctxt->regs[VCPU_REGS_RDX] = pmc >> 32;
+	return X86EMUL_CONTINUE;
+}
+
 static int em_mov(struct x86_emulate_ctxt *ctxt)
 {
 	ctxt->dst.val = ctxt->src.val;
 	return X86EMUL_CONTINUE;
 }
 
+static int em_cr_write(struct x86_emulate_ctxt *ctxt)
+{
+	if (ctxt->ops->set_cr(ctxt, ctxt->modrm_reg, ctxt->src.val))
+		return emulate_gp(ctxt, 0);
+
+	/* Disable writeback. */
+	ctxt->dst.type = OP_NONE;
+	return X86EMUL_CONTINUE;
+}
+
+static int em_dr_write(struct x86_emulate_ctxt *ctxt)
+{
+	unsigned long val;
+
+	if (ctxt->mode == X86EMUL_MODE_PROT64)
+		val = ctxt->src.val & ~0ULL;
+	else
+		val = ctxt->src.val & ~0U;
+
+	/* #UD condition is already handled. */
+	if (ctxt->ops->set_dr(ctxt, ctxt->modrm_reg, val) < 0)
+		return emulate_gp(ctxt, 0);
+
+	/* Disable writeback. */
+	ctxt->dst.type = OP_NONE;
+	return X86EMUL_CONTINUE;
+}
+
+static int em_wrmsr(struct x86_emulate_ctxt *ctxt)
+{
+	u64 msr_data;
+
+	msr_data = (u32)ctxt->regs[VCPU_REGS_RAX]
+		| ((u64)ctxt->regs[VCPU_REGS_RDX] << 32);
+	if (ctxt->ops->set_msr(ctxt, ctxt->regs[VCPU_REGS_RCX], msr_data))
+		return emulate_gp(ctxt, 0);
+
+	return X86EMUL_CONTINUE;
+}
+
+static int em_rdmsr(struct x86_emulate_ctxt *ctxt)
+{
+	u64 msr_data;
+
+	if (ctxt->ops->get_msr(ctxt, ctxt->regs[VCPU_REGS_RCX], &msr_data))
+		return emulate_gp(ctxt, 0);
+
+	ctxt->regs[VCPU_REGS_RAX] = (u32)msr_data;
+	ctxt->regs[VCPU_REGS_RDX] = msr_data >> 32;
+	return X86EMUL_CONTINUE;
+}
+
 static int em_mov_rm_sreg(struct x86_emulate_ctxt *ctxt)
 {
 	if (ctxt->modrm_reg > VCPU_SREG_GS)
@@ -2775,6 +2861,24 @@ static int em_jcxz(struct x86_emulate_ctxt *ctxt)
 	return X86EMUL_CONTINUE;
 }
 
+static int em_in(struct x86_emulate_ctxt *ctxt)
+{
+	if (!pio_in_emulated(ctxt, ctxt->dst.bytes, ctxt->src.val,
+			     &ctxt->dst.val))
+		return X86EMUL_IO_NEEDED;
+
+	return X86EMUL_CONTINUE;
+}
+
+static int em_out(struct x86_emulate_ctxt *ctxt)
+{
+	ctxt->ops->pio_out_emulated(ctxt, ctxt->src.bytes, ctxt->dst.val,
+				    &ctxt->src.val, 1);
+	/* Disable writeback. */
+	ctxt->dst.type = OP_NONE;
+	return X86EMUL_CONTINUE;
+}
+
 static int em_cli(struct x86_emulate_ctxt *ctxt)
 {
 	if (emulator_bad_iopl(ctxt))
@@ -2794,6 +2898,69 @@ static int em_sti(struct x86_emulate_ctxt *ctxt)
 	return X86EMUL_CONTINUE;
 }
 
+static int em_bt(struct x86_emulate_ctxt *ctxt)
+{
+	/* Disable writeback. */
+	ctxt->dst.type = OP_NONE;
+	/* only subword offset */
+	ctxt->src.val &= (ctxt->dst.bytes << 3) - 1;
+
+	emulate_2op_SrcV_nobyte(ctxt, "bt");
+	return X86EMUL_CONTINUE;
+}
+
+static int em_bts(struct x86_emulate_ctxt *ctxt)
+{
+	emulate_2op_SrcV_nobyte(ctxt, "bts");
+	return X86EMUL_CONTINUE;
+}
+
+static int em_btr(struct x86_emulate_ctxt *ctxt)
+{
+	emulate_2op_SrcV_nobyte(ctxt, "btr");
+	return X86EMUL_CONTINUE;
+}
+
+static int em_btc(struct x86_emulate_ctxt *ctxt)
+{
+	emulate_2op_SrcV_nobyte(ctxt, "btc");
+	return X86EMUL_CONTINUE;
+}
+
+static int em_bsf(struct x86_emulate_ctxt *ctxt)
+{
+	u8 zf;
+
+	__asm__ ("bsf %2, %0; setz %1"
+		 : "=r"(ctxt->dst.val), "=q"(zf)
+		 : "r"(ctxt->src.val));
+
+	ctxt->eflags &= ~X86_EFLAGS_ZF;
+	if (zf) {
+		ctxt->eflags |= X86_EFLAGS_ZF;
+		/* Disable writeback. */
+		ctxt->dst.type = OP_NONE;
+	}
+	return X86EMUL_CONTINUE;
+}
+
+static int em_bsr(struct x86_emulate_ctxt *ctxt)
+{
+	u8 zf;
+
+	__asm__ ("bsr %2, %0; setz %1"
+		 : "=r"(ctxt->dst.val), "=q"(zf)
+		 : "r"(ctxt->src.val));
+
+	ctxt->eflags &= ~X86_EFLAGS_ZF;
+	if (zf) {
+		ctxt->eflags |= X86_EFLAGS_ZF;
+		/* Disable writeback. */
+		ctxt->dst.type = OP_NONE;
+	}
+	return X86EMUL_CONTINUE;
+}
+
 static bool valid_cr(int nr)
 {
 	switch (nr) {
@@ -2867,9 +3034,6 @@ static int check_cr_write(struct x86_emulate_ctxt *ctxt)
 		break;
 		}
 	case 4: {
-		u64 cr4;
-
-		cr4 = ctxt->ops->get_cr(ctxt, 4);
 		ctxt->ops->get_msr(ctxt, MSR_EFER, &efer);
 
 		if ((efer & EFER_LMA) && !(new_val & X86_CR4_PAE))
@@ -3003,6 +3167,8 @@ static int check_perm_out(struct x86_emulate_ctxt *ctxt)
 #define D2bv(_f)      D((_f) | ByteOp), D(_f)
 #define D2bvIP(_f, _i, _p) DIP((_f) | ByteOp, _i, _p), DIP(_f, _i, _p)
 #define I2bv(_f, _e)  I((_f) | ByteOp, _e), I(_f, _e)
+#define I2bvIP(_f, _e, _i, _p) \
+	IIP((_f) | ByteOp, _e, _i, _p), IIP(_f, _e, _i, _p)
 
 #define I6ALU(_f, _e) I2bv((_f) | DstMem | SrcReg | ModRM, _e),		\
 		I2bv(((_f) | DstReg | SrcMem | ModRM) & ~Lock, _e),	\
@@ -3033,17 +3199,17 @@ static struct opcode group7_rm7[] = {
 
 static struct opcode group1[] = {
 	I(Lock, em_add),
-	I(Lock, em_or),
+	I(Lock | PageTable, em_or),
 	I(Lock, em_adc),
 	I(Lock, em_sbb),
-	I(Lock, em_and),
+	I(Lock | PageTable, em_and),
 	I(Lock, em_sub),
 	I(Lock, em_xor),
 	I(0, em_cmp),
 };
 
 static struct opcode group1A[] = {
-	D(DstMem | SrcNone | ModRM | Mov | Stack), N, N, N, N, N, N, N,
+	I(DstMem | SrcNone | ModRM | Mov | Stack, em_pop), N, N, N, N, N, N, N,
 };
 
 static struct opcode group3[] = {
@@ -3058,16 +3224,19 @@ static struct opcode group3[] = {
 };
 
 static struct opcode group4[] = {
-	D(ByteOp | DstMem | SrcNone | ModRM | Lock), D(ByteOp | DstMem | SrcNone | ModRM | Lock),
+	I(ByteOp | DstMem | SrcNone | ModRM | Lock, em_grp45),
+	I(ByteOp | DstMem | SrcNone | ModRM | Lock, em_grp45),
 	N, N, N, N, N, N,
 };
 
 static struct opcode group5[] = {
-	D(DstMem | SrcNone | ModRM | Lock), D(DstMem | SrcNone | ModRM | Lock),
-	D(SrcMem | ModRM | Stack),
+	I(DstMem | SrcNone | ModRM | Lock, em_grp45),
+	I(DstMem | SrcNone | ModRM | Lock, em_grp45),
+	I(SrcMem | ModRM | Stack, em_grp45),
 	I(SrcMemFAddr | ModRM | ImplicitOps | Stack, em_call_far),
-	D(SrcMem | ModRM | Stack), D(SrcMemFAddr | ModRM | ImplicitOps),
-	D(SrcMem | ModRM | Stack), N,
+	I(SrcMem | ModRM | Stack, em_grp45),
+	I(SrcMemFAddr | ModRM | ImplicitOps, em_grp45),
+	I(SrcMem | ModRM | Stack, em_grp45), N,
 };
 
 static struct opcode group6[] = {
@@ -3096,18 +3265,21 @@ static struct group_dual group7 = { {
 
 static struct opcode group8[] = {
 	N, N, N, N,
-	D(DstMem | SrcImmByte | ModRM), D(DstMem | SrcImmByte | ModRM | Lock),
-	D(DstMem | SrcImmByte | ModRM | Lock), D(DstMem | SrcImmByte | ModRM | Lock),
+	I(DstMem | SrcImmByte | ModRM, em_bt),
+	I(DstMem | SrcImmByte | ModRM | Lock | PageTable, em_bts),
+	I(DstMem | SrcImmByte | ModRM | Lock, em_btr),
+	I(DstMem | SrcImmByte | ModRM | Lock | PageTable, em_btc),
 };
 
 static struct group_dual group9 = { {
-	N, D(DstMem64 | ModRM | Lock), N, N, N, N, N, N,
+	N, I(DstMem64 | ModRM | Lock | PageTable, em_cmpxchg8b), N, N, N, N, N, N,
 }, {
 	N, N, N, N, N, N, N, N,
 } };
 
 static struct opcode group11[] = {
-	I(DstMem | SrcImm | ModRM | Mov, em_mov), X7(D(Undefined)),
+	I(DstMem | SrcImm | ModRM | Mov | PageTable, em_mov),
+	X7(D(Undefined)),
 };
 
 static struct gprefix pfx_0f_6f_0f_7f = {
@@ -3120,7 +3292,7 @@ static struct opcode opcode_table[256] = {
 	I(ImplicitOps | Stack | No64 | Src2ES, em_push_sreg),
 	I(ImplicitOps | Stack | No64 | Src2ES, em_pop_sreg),
 	/* 0x08 - 0x0F */
-	I6ALU(Lock, em_or),
+	I6ALU(Lock | PageTable, em_or),
 	I(ImplicitOps | Stack | No64 | Src2CS, em_push_sreg),
 	N,
 	/* 0x10 - 0x17 */
@@ -3132,7 +3304,7 @@ static struct opcode opcode_table[256] = {
 	I(ImplicitOps | Stack | No64 | Src2DS, em_push_sreg),
 	I(ImplicitOps | Stack | No64 | Src2DS, em_pop_sreg),
 	/* 0x20 - 0x27 */
-	I6ALU(Lock, em_and), N, N,
+	I6ALU(Lock | PageTable, em_and), N, N,
 	/* 0x28 - 0x2F */
 	I6ALU(Lock, em_sub), N, I(ByteOp | DstAcc | No64, em_das),
 	/* 0x30 - 0x37 */
@@ -3155,8 +3327,8 @@ static struct opcode opcode_table[256] = {
 	I(DstReg | SrcMem | ModRM | Src2Imm, em_imul_3op),
 	I(SrcImmByte | Mov | Stack, em_push),
 	I(DstReg | SrcMem | ModRM | Src2ImmByte, em_imul_3op),
-	D2bvIP(DstDI | SrcDX | Mov | String, ins, check_perm_in), /* insb, insw/insd */
-	D2bvIP(SrcSI | DstDX | String, outs, check_perm_out), /* outsb, outsw/outsd */
+	I2bvIP(DstDI | SrcDX | Mov | String, em_in, ins, check_perm_in), /* insb, insw/insd */
+	I2bvIP(SrcSI | DstDX | String, em_out, outs, check_perm_out), /* outsb, outsw/outsd */
 	/* 0x70 - 0x7F */
 	X16(D(SrcImmByte)),
 	/* 0x80 - 0x87 */
@@ -3165,11 +3337,11 @@ static struct opcode opcode_table[256] = {
 	G(ByteOp | DstMem | SrcImm | ModRM | No64 | Group, group1),
 	G(DstMem | SrcImmByte | ModRM | Group, group1),
 	I2bv(DstMem | SrcReg | ModRM, em_test),
-	I2bv(DstMem | SrcReg | ModRM | Lock, em_xchg),
+	I2bv(DstMem | SrcReg | ModRM | Lock | PageTable, em_xchg),
 	/* 0x88 - 0x8F */
-	I2bv(DstMem | SrcReg | ModRM | Mov, em_mov),
+	I2bv(DstMem | SrcReg | ModRM | Mov | PageTable, em_mov),
 	I2bv(DstReg | SrcMem | ModRM | Mov, em_mov),
-	I(DstMem | SrcNone | ModRM | Mov, em_mov_rm_sreg),
+	I(DstMem | SrcNone | ModRM | Mov | PageTable, em_mov_rm_sreg),
 	D(ModRM | SrcMem | NoAccess | DstReg),
 	I(ImplicitOps | SrcMem16 | ModRM, em_mov_sreg_rm),
 	G(0, group1A),
@@ -3182,7 +3354,7 @@ static struct opcode opcode_table[256] = {
 	II(ImplicitOps | Stack, em_popf, popf), N, N,
 	/* 0xA0 - 0xA7 */
 	I2bv(DstAcc | SrcMem | Mov | MemAbs, em_mov),
-	I2bv(DstMem | SrcAcc | Mov | MemAbs, em_mov),
+	I2bv(DstMem | SrcAcc | Mov | MemAbs | PageTable, em_mov),
 	I2bv(SrcSI | DstDI | Mov | String, em_mov),
 	I2bv(SrcSI | DstDI | String, em_cmp),
 	/* 0xA8 - 0xAF */
@@ -3213,13 +3385,13 @@ static struct opcode opcode_table[256] = {
 	/* 0xE0 - 0xE7 */
 	X3(I(SrcImmByte, em_loop)),
 	I(SrcImmByte, em_jcxz),
-	D2bvIP(SrcImmUByte | DstAcc, in,  check_perm_in),
-	D2bvIP(SrcAcc | DstImmUByte, out, check_perm_out),
+	I2bvIP(SrcImmUByte | DstAcc, em_in,  in,  check_perm_in),
+	I2bvIP(SrcAcc | DstImmUByte, em_out, out, check_perm_out),
 	/* 0xE8 - 0xEF */
-	D(SrcImm | Stack), D(SrcImm | ImplicitOps),
+	I(SrcImm | Stack, em_call), D(SrcImm | ImplicitOps),
 	I(SrcImmFAddr | No64, em_jmp_far), D(SrcImmByte | ImplicitOps),
-	D2bvIP(SrcDX | DstAcc, in,  check_perm_in),
-	D2bvIP(SrcAcc | DstDX, out, check_perm_out),
+	I2bvIP(SrcDX | DstAcc, em_in,  in,  check_perm_in),
+	I2bvIP(SrcAcc | DstDX, em_out, out, check_perm_out),
 	/* 0xF0 - 0xF7 */
 	N, DI(ImplicitOps, icebp), N, N,
 	DI(ImplicitOps | Priv, hlt), D(ImplicitOps),
@@ -3242,15 +3414,15 @@ static struct opcode twobyte_table[256] = {
 	/* 0x20 - 0x2F */
 	DIP(ModRM | DstMem | Priv | Op3264, cr_read, check_cr_read),
 	DIP(ModRM | DstMem | Priv | Op3264, dr_read, check_dr_read),
-	DIP(ModRM | SrcMem | Priv | Op3264, cr_write, check_cr_write),
-	DIP(ModRM | SrcMem | Priv | Op3264, dr_write, check_dr_write),
+	IIP(ModRM | SrcMem | Priv | Op3264, em_cr_write, cr_write, check_cr_write),
+	IIP(ModRM | SrcMem | Priv | Op3264, em_dr_write, dr_write, check_dr_write),
 	N, N, N, N,
 	N, N, N, N, N, N, N, N,
 	/* 0x30 - 0x3F */
-	DI(ImplicitOps | Priv, wrmsr),
+	II(ImplicitOps | Priv, em_wrmsr, wrmsr),
 	IIP(ImplicitOps, em_rdtsc, rdtsc, check_rdtsc),
-	DI(ImplicitOps | Priv, rdmsr),
-	DIP(ImplicitOps | Priv, rdpmc, check_rdpmc),
+	II(ImplicitOps | Priv, em_rdmsr, rdmsr),
+	IIP(ImplicitOps, em_rdpmc, rdpmc, check_rdpmc),
 	I(ImplicitOps | VendorSpecific, em_sysenter),
 	I(ImplicitOps | Priv | VendorSpecific, em_sysexit),
 	N, N,
@@ -3275,26 +3447,28 @@ static struct opcode twobyte_table[256] = {
 	X16(D(ByteOp | DstMem | SrcNone | ModRM| Mov)),
 	/* 0xA0 - 0xA7 */
 	I(Stack | Src2FS, em_push_sreg), I(Stack | Src2FS, em_pop_sreg),
-	DI(ImplicitOps, cpuid), D(DstMem | SrcReg | ModRM | BitOp),
+	DI(ImplicitOps, cpuid), I(DstMem | SrcReg | ModRM | BitOp, em_bt),
 	D(DstMem | SrcReg | Src2ImmByte | ModRM),
 	D(DstMem | SrcReg | Src2CL | ModRM), N, N,
 	/* 0xA8 - 0xAF */
 	I(Stack | Src2GS, em_push_sreg), I(Stack | Src2GS, em_pop_sreg),
-	DI(ImplicitOps, rsm), D(DstMem | SrcReg | ModRM | BitOp | Lock),
+	DI(ImplicitOps, rsm),
+	I(DstMem | SrcReg | ModRM | BitOp | Lock | PageTable, em_bts),
 	D(DstMem | SrcReg | Src2ImmByte | ModRM),
 	D(DstMem | SrcReg | Src2CL | ModRM),
 	D(ModRM), I(DstReg | SrcMem | ModRM, em_imul),
 	/* 0xB0 - 0xB7 */
-	D2bv(DstMem | SrcReg | ModRM | Lock),
+	I2bv(DstMem | SrcReg | ModRM | Lock | PageTable, em_cmpxchg),
 	I(DstReg | SrcMemFAddr | ModRM | Src2SS, em_lseg),
-	D(DstMem | SrcReg | ModRM | BitOp | Lock),
+	I(DstMem | SrcReg | ModRM | BitOp | Lock, em_btr),
 	I(DstReg | SrcMemFAddr | ModRM | Src2FS, em_lseg),
 	I(DstReg | SrcMemFAddr | ModRM | Src2GS, em_lseg),
 	D(ByteOp | DstReg | SrcMem | ModRM | Mov), D(DstReg | SrcMem16 | ModRM | Mov),
 	/* 0xB8 - 0xBF */
 	N, N,
-	G(BitOp, group8), D(DstMem | SrcReg | ModRM | BitOp | Lock),
-	D(DstReg | SrcMem | ModRM), D(DstReg | SrcMem | ModRM),
+	G(BitOp, group8),
+	I(DstMem | SrcReg | ModRM | BitOp | Lock | PageTable, em_btc),
+	I(DstReg | SrcMem | ModRM, em_bsf), I(DstReg | SrcMem | ModRM, em_bsr),
 	D(ByteOp | DstReg | SrcMem | ModRM | Mov), D(DstReg | SrcMem16 | ModRM | Mov),
 	/* 0xC0 - 0xCF */
 	D2bv(DstMem | SrcReg | ModRM | Lock),
@@ -3320,6 +3494,7 @@ static struct opcode twobyte_table[256] = {
 #undef D2bv
 #undef D2bvIP
 #undef I2bv
+#undef I2bvIP
 #undef I6ALU
 
 static unsigned imm_size(struct x86_emulate_ctxt *ctxt)
@@ -3697,6 +3872,11 @@ done:
 	return (rc != X86EMUL_CONTINUE) ? EMULATION_FAILED : EMULATION_OK;
 }
 
+bool x86_page_table_writing_insn(struct x86_emulate_ctxt *ctxt)
+{
+	return ctxt->d & PageTable;
+}
+
 static bool string_insn_completed(struct x86_emulate_ctxt *ctxt)
 {
 	/* The second termination condition only applies for REPE
@@ -3720,7 +3900,6 @@ static bool string_insn_completed(struct x86_emulate_ctxt *ctxt)
 int x86_emulate_insn(struct x86_emulate_ctxt *ctxt)
 {
 	struct x86_emulate_ops *ops = ctxt->ops;
-	u64 msr_data;
 	int rc = X86EMUL_CONTINUE;
 	int saved_dst_type = ctxt->dst.type;
 
@@ -3854,15 +4033,6 @@ special_insn:
 			goto cannot_emulate;
 		ctxt->dst.val = (s32) ctxt->src.val;
 		break;
-	case 0x6c:		/* insb */
-	case 0x6d:		/* insw/insd */
-		ctxt->src.val = ctxt->regs[VCPU_REGS_RDX];
-		goto do_io_in;
-	case 0x6e:		/* outsb */
-	case 0x6f:		/* outsw/outsd */
-		ctxt->dst.val = ctxt->regs[VCPU_REGS_RDX];
-		goto do_io_out;
-		break;
 	case 0x70 ... 0x7f: /* jcc (short) */
 		if (test_cc(ctxt->b, ctxt->eflags))
 			jmp_rel(ctxt, ctxt->src.val);
@@ -3870,9 +4040,6 @@ special_insn:
 	case 0x8d: /* lea r16/r32, m */
 		ctxt->dst.val = ctxt->src.addr.mem.ea;
 		break;
-	case 0x8f:		/* pop (sole member of Grp1a) */
-		rc = em_grp1a(ctxt);
-		break;
 	case 0x90 ... 0x97: /* nop / xchg reg, rax */
 		if (ctxt->dst.addr.reg == &ctxt->regs[VCPU_REGS_RAX])
 			break;
@@ -3905,38 +4072,11 @@ special_insn:
 		ctxt->src.val = ctxt->regs[VCPU_REGS_RCX];
 		rc = em_grp2(ctxt);
 		break;
-	case 0xe4: 	/* inb */
-	case 0xe5: 	/* in */
-		goto do_io_in;
-	case 0xe6: /* outb */
-	case 0xe7: /* out */
-		goto do_io_out;
-	case 0xe8: /* call (near) */ {
-		long int rel = ctxt->src.val;
-		ctxt->src.val = (unsigned long) ctxt->_eip;
-		jmp_rel(ctxt, rel);
-		rc = em_push(ctxt);
-		break;
-	}
 	case 0xe9: /* jmp rel */
 	case 0xeb: /* jmp rel short */
 		jmp_rel(ctxt, ctxt->src.val);
 		ctxt->dst.type = OP_NONE; /* Disable writeback. */
 		break;
-	case 0xec: /* in al,dx */
-	case 0xed: /* in (e/r)ax,dx */
-	do_io_in:
-		if (!pio_in_emulated(ctxt, ctxt->dst.bytes, ctxt->src.val,
-				     &ctxt->dst.val))
-			goto done; /* IO is needed */
-		break;
-	case 0xee: /* out dx,al */
-	case 0xef: /* out dx,(e/r)ax */
-	do_io_out:
-		ops->pio_out_emulated(ctxt, ctxt->src.bytes, ctxt->dst.val,
-				      &ctxt->src.val, 1);
-		ctxt->dst.type = OP_NONE;	/* Disable writeback. */
-		break;
 	case 0xf4:              /* hlt */
 		ctxt->ops->halt(ctxt);
 		break;
@@ -3956,12 +4096,6 @@ special_insn:
 	case 0xfd: /* std */
 		ctxt->eflags |= EFLG_DF;
 		break;
-	case 0xfe: /* Grp4 */
-		rc = em_grp45(ctxt);
-		break;
-	case 0xff: /* Grp5 */
-		rc = em_grp45(ctxt);
-		break;
 	default:
 		goto cannot_emulate;
 	}
@@ -4036,49 +4170,6 @@ twobyte_insn:
 	case 0x21: /* mov from dr to reg */
 		ops->get_dr(ctxt, ctxt->modrm_reg, &ctxt->dst.val);
 		break;
-	case 0x22: /* mov reg, cr */
-		if (ops->set_cr(ctxt, ctxt->modrm_reg, ctxt->src.val)) {
-			emulate_gp(ctxt, 0);
-			rc = X86EMUL_PROPAGATE_FAULT;
-			goto done;
-		}
-		ctxt->dst.type = OP_NONE;
-		break;
-	case 0x23: /* mov from reg to dr */
-		if (ops->set_dr(ctxt, ctxt->modrm_reg, ctxt->src.val &
-				((ctxt->mode == X86EMUL_MODE_PROT64) ?
-				 ~0ULL : ~0U)) < 0) {
-			/* #UD condition is already handled by the code above */
-			emulate_gp(ctxt, 0);
-			rc = X86EMUL_PROPAGATE_FAULT;
-			goto done;
-		}
-
-		ctxt->dst.type = OP_NONE;	/* no writeback */
-		break;
-	case 0x30:
-		/* wrmsr */
-		msr_data = (u32)ctxt->regs[VCPU_REGS_RAX]
-			| ((u64)ctxt->regs[VCPU_REGS_RDX] << 32);
-		if (ops->set_msr(ctxt, ctxt->regs[VCPU_REGS_RCX], msr_data)) {
-			emulate_gp(ctxt, 0);
-			rc = X86EMUL_PROPAGATE_FAULT;
-			goto done;
-		}
-		rc = X86EMUL_CONTINUE;
-		break;
-	case 0x32:
-		/* rdmsr */
-		if (ops->get_msr(ctxt, ctxt->regs[VCPU_REGS_RCX], &msr_data)) {
-			emulate_gp(ctxt, 0);
-			rc = X86EMUL_PROPAGATE_FAULT;
-			goto done;
-		} else {
-			ctxt->regs[VCPU_REGS_RAX] = (u32)msr_data;
-			ctxt->regs[VCPU_REGS_RDX] = msr_data >> 32;
-		}
-		rc = X86EMUL_CONTINUE;
-		break;
 	case 0x40 ... 0x4f:	/* cmov */
 		ctxt->dst.val = ctxt->dst.orig_val = ctxt->src.val;
 		if (!test_cc(ctxt->b, ctxt->eflags))
@@ -4091,93 +4182,21 @@ twobyte_insn:
 	case 0x90 ... 0x9f:     /* setcc r/m8 */
 		ctxt->dst.val = test_cc(ctxt->b, ctxt->eflags);
 		break;
-	case 0xa3:
-	      bt:		/* bt */
-		ctxt->dst.type = OP_NONE;
-		/* only subword offset */
-		ctxt->src.val &= (ctxt->dst.bytes << 3) - 1;
-		emulate_2op_SrcV_nobyte(ctxt, "bt");
-		break;
 	case 0xa4: /* shld imm8, r, r/m */
 	case 0xa5: /* shld cl, r, r/m */
 		emulate_2op_cl(ctxt, "shld");
 		break;
-	case 0xab:
-	      bts:		/* bts */
-		emulate_2op_SrcV_nobyte(ctxt, "bts");
-		break;
 	case 0xac: /* shrd imm8, r, r/m */
 	case 0xad: /* shrd cl, r, r/m */
 		emulate_2op_cl(ctxt, "shrd");
 		break;
 	case 0xae:              /* clflush */
 		break;
-	case 0xb0 ... 0xb1:	/* cmpxchg */
-		/*
-		 * Save real source value, then compare EAX against
-		 * destination.
-		 */
-		ctxt->src.orig_val = ctxt->src.val;
-		ctxt->src.val = ctxt->regs[VCPU_REGS_RAX];
-		emulate_2op_SrcV(ctxt, "cmp");
-		if (ctxt->eflags & EFLG_ZF) {
-			/* Success: write back to memory. */
-			ctxt->dst.val = ctxt->src.orig_val;
-		} else {
-			/* Failure: write the value we saw to EAX. */
-			ctxt->dst.type = OP_REG;
-			ctxt->dst.addr.reg = (unsigned long *)&ctxt->regs[VCPU_REGS_RAX];
-		}
-		break;
-	case 0xb3:
-	      btr:		/* btr */
-		emulate_2op_SrcV_nobyte(ctxt, "btr");
-		break;
 	case 0xb6 ... 0xb7:	/* movzx */
 		ctxt->dst.bytes = ctxt->op_bytes;
 		ctxt->dst.val = (ctxt->d & ByteOp) ? (u8) ctxt->src.val
 						       : (u16) ctxt->src.val;
 		break;
-	case 0xba:		/* Grp8 */
-		switch (ctxt->modrm_reg & 3) {
-		case 0:
-			goto bt;
-		case 1:
-			goto bts;
-		case 2:
-			goto btr;
-		case 3:
-			goto btc;
-		}
-		break;
-	case 0xbb:
-	      btc:		/* btc */
-		emulate_2op_SrcV_nobyte(ctxt, "btc");
-		break;
-	case 0xbc: {		/* bsf */
-		u8 zf;
-		__asm__ ("bsf %2, %0; setz %1"
-			 : "=r"(ctxt->dst.val), "=q"(zf)
-			 : "r"(ctxt->src.val));
-		ctxt->eflags &= ~X86_EFLAGS_ZF;
-		if (zf) {
-			ctxt->eflags |= X86_EFLAGS_ZF;
-			ctxt->dst.type = OP_NONE;	/* Disable writeback. */
-		}
-		break;
-	}
-	case 0xbd: {		/* bsr */
-		u8 zf;
-		__asm__ ("bsr %2, %0; setz %1"
-			 : "=r"(ctxt->dst.val), "=q"(zf)
-			 : "r"(ctxt->src.val));
-		ctxt->eflags &= ~X86_EFLAGS_ZF;
-		if (zf) {
-			ctxt->eflags |= X86_EFLAGS_ZF;
-			ctxt->dst.type = OP_NONE;	/* Disable writeback. */
-		}
-		break;
-	}
 	case 0xbe ... 0xbf:	/* movsx */
 		ctxt->dst.bytes = ctxt->op_bytes;
 		ctxt->dst.val = (ctxt->d & ByteOp) ? (s8) ctxt->src.val :
@@ -4194,9 +4213,6 @@ twobyte_insn:
 		ctxt->dst.val = (ctxt->op_bytes == 4) ? (u32) ctxt->src.val :
 							(u64) ctxt->src.val;
 		break;
-	case 0xc7:		/* Grp9 (cmpxchg8b) */
-		rc = em_grp9(ctxt);
-		break;
 	default:
 		goto cannot_emulate;
 	}
diff --git a/arch/x86/kvm/i8254.c b/arch/x86/kvm/i8254.c
index 405f2620392f..d68f99df690c 100644
--- a/arch/x86/kvm/i8254.c
+++ b/arch/x86/kvm/i8254.c
@@ -344,7 +344,7 @@ static void create_pit_timer(struct kvm *kvm, u32 val, int is_period)
 	struct kvm_timer *pt = &ps->pit_timer;
 	s64 interval;
 
-	if (!irqchip_in_kernel(kvm))
+	if (!irqchip_in_kernel(kvm) || ps->flags & KVM_PIT_FLAGS_HPET_LEGACY)
 		return;
 
 	interval = muldiv64(val, NSEC_PER_SEC, KVM_PIT_FREQ);
@@ -397,15 +397,11 @@ static void pit_load_count(struct kvm *kvm, int channel, u32 val)
 	case 1:
         /* FIXME: enhance mode 4 precision */
 	case 4:
-		if (!(ps->flags & KVM_PIT_FLAGS_HPET_LEGACY)) {
-			create_pit_timer(kvm, val, 0);
-		}
+		create_pit_timer(kvm, val, 0);
 		break;
 	case 2:
 	case 3:
-		if (!(ps->flags & KVM_PIT_FLAGS_HPET_LEGACY)){
-			create_pit_timer(kvm, val, 1);
-		}
+		create_pit_timer(kvm, val, 1);
 		break;
 	default:
 		destroy_pit_timer(kvm->arch.vpit);
diff --git a/arch/x86/kvm/i8259.c b/arch/x86/kvm/i8259.c
index cac4746d7ffb..b6a73537e1ef 100644
--- a/arch/x86/kvm/i8259.c
+++ b/arch/x86/kvm/i8259.c
@@ -262,9 +262,10 @@ int kvm_pic_read_irq(struct kvm *kvm)
 
 void kvm_pic_reset(struct kvm_kpic_state *s)
 {
-	int irq;
-	struct kvm_vcpu *vcpu0 = s->pics_state->kvm->bsp_vcpu;
+	int irq, i;
+	struct kvm_vcpu *vcpu;
 	u8 irr = s->irr, isr = s->imr;
+	bool found = false;
 
 	s->last_irr = 0;
 	s->irr = 0;
@@ -281,12 +282,19 @@ void kvm_pic_reset(struct kvm_kpic_state *s)
 	s->special_fully_nested_mode = 0;
 	s->init4 = 0;
 
-	for (irq = 0; irq < PIC_NUM_PINS/2; irq++) {
-		if (vcpu0 && kvm_apic_accept_pic_intr(vcpu0))
-			if (irr & (1 << irq) || isr & (1 << irq)) {
-				pic_clear_isr(s, irq);
-			}
-	}
+	kvm_for_each_vcpu(i, vcpu, s->pics_state->kvm)
+		if (kvm_apic_accept_pic_intr(vcpu)) {
+			found = true;
+			break;
+		}
+
+
+	if (!found)
+		return;
+
+	for (irq = 0; irq < PIC_NUM_PINS/2; irq++)
+		if (irr & (1 << irq) || isr & (1 << irq))
+			pic_clear_isr(s, irq);
 }
 
 static void pic_ioport_write(void *opaque, u32 addr, u32 val)
diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c
index 54abb40199d6..cfdc6e0ef002 100644
--- a/arch/x86/kvm/lapic.c
+++ b/arch/x86/kvm/lapic.c
@@ -38,6 +38,7 @@
 #include "irq.h"
 #include "trace.h"
 #include "x86.h"
+#include "cpuid.h"
 
 #ifndef CONFIG_X86_64
 #define mod_64(x, y) ((x) - (y) * div64_u64(x, y))
@@ -1120,7 +1121,7 @@ int apic_has_pending_timer(struct kvm_vcpu *vcpu)
 	return 0;
 }
 
-static int kvm_apic_local_deliver(struct kvm_lapic *apic, int lvt_type)
+int kvm_apic_local_deliver(struct kvm_lapic *apic, int lvt_type)
 {
 	u32 reg = apic_get_reg(apic, lvt_type);
 	int vector, mode, trig_mode;
diff --git a/arch/x86/kvm/lapic.h b/arch/x86/kvm/lapic.h
index 138e8cc6fea6..6f4ce2575d09 100644
--- a/arch/x86/kvm/lapic.h
+++ b/arch/x86/kvm/lapic.h
@@ -34,6 +34,7 @@ void kvm_apic_set_version(struct kvm_vcpu *vcpu);
 int kvm_apic_match_physical_addr(struct kvm_lapic *apic, u16 dest);
 int kvm_apic_match_logical_addr(struct kvm_lapic *apic, u8 mda);
 int kvm_apic_set_irq(struct kvm_vcpu *vcpu, struct kvm_lapic_irq *irq);
+int kvm_apic_local_deliver(struct kvm_lapic *apic, int lvt_type);
 
 u64 kvm_get_apic_base(struct kvm_vcpu *vcpu);
 void kvm_set_apic_base(struct kvm_vcpu *vcpu, u64 data);
diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index f1b36cf3e3d0..2a2a9b40db19 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -59,15 +59,6 @@ enum {
 	AUDIT_POST_SYNC
 };
 
-char *audit_point_name[] = {
-	"pre page fault",
-	"post page fault",
-	"pre pte write",
-	"post pte write",
-	"pre sync",
-	"post sync"
-};
-
 #undef MMU_DEBUG
 
 #ifdef MMU_DEBUG
@@ -87,9 +78,6 @@ static int dbg = 0;
 module_param(dbg, bool, 0644);
 #endif
 
-static int oos_shadow = 1;
-module_param(oos_shadow, bool, 0644);
-
 #ifndef MMU_DEBUG
 #define ASSERT(x) do { } while (0)
 #else
@@ -593,6 +581,11 @@ static int mmu_topup_memory_cache(struct kvm_mmu_memory_cache *cache,
 	return 0;
 }
 
+static int mmu_memory_cache_free_objects(struct kvm_mmu_memory_cache *cache)
+{
+	return cache->nobjs;
+}
+
 static void mmu_free_memory_cache(struct kvm_mmu_memory_cache *mc,
 				  struct kmem_cache *cache)
 {
@@ -953,21 +946,35 @@ static void pte_list_walk(unsigned long *pte_list, pte_list_walk_fn fn)
 	}
 }
 
+static unsigned long *__gfn_to_rmap(struct kvm *kvm, gfn_t gfn, int level,
+				    struct kvm_memory_slot *slot)
+{
+	struct kvm_lpage_info *linfo;
+
+	if (likely(level == PT_PAGE_TABLE_LEVEL))
+		return &slot->rmap[gfn - slot->base_gfn];
+
+	linfo = lpage_info_slot(gfn, slot, level);
+	return &linfo->rmap_pde;
+}
+
 /*
  * Take gfn and return the reverse mapping to it.
  */
 static unsigned long *gfn_to_rmap(struct kvm *kvm, gfn_t gfn, int level)
 {
 	struct kvm_memory_slot *slot;
-	struct kvm_lpage_info *linfo;
 
 	slot = gfn_to_memslot(kvm, gfn);
-	if (likely(level == PT_PAGE_TABLE_LEVEL))
-		return &slot->rmap[gfn - slot->base_gfn];
+	return __gfn_to_rmap(kvm, gfn, level, slot);
+}
 
-	linfo = lpage_info_slot(gfn, slot, level);
+static bool rmap_can_add(struct kvm_vcpu *vcpu)
+{
+	struct kvm_mmu_memory_cache *cache;
 
-	return &linfo->rmap_pde;
+	cache = &vcpu->arch.mmu_pte_list_desc_cache;
+	return mmu_memory_cache_free_objects(cache);
 }
 
 static int rmap_add(struct kvm_vcpu *vcpu, u64 *spte, gfn_t gfn)
@@ -1004,17 +1011,16 @@ static void drop_spte(struct kvm *kvm, u64 *sptep)
 		rmap_remove(kvm, sptep);
 }
 
-static int rmap_write_protect(struct kvm *kvm, u64 gfn)
+int kvm_mmu_rmap_write_protect(struct kvm *kvm, u64 gfn,
+			       struct kvm_memory_slot *slot)
 {
 	unsigned long *rmapp;
 	u64 *spte;
 	int i, write_protected = 0;
 
-	rmapp = gfn_to_rmap(kvm, gfn, PT_PAGE_TABLE_LEVEL);
-
+	rmapp = __gfn_to_rmap(kvm, gfn, PT_PAGE_TABLE_LEVEL, slot);
 	spte = rmap_next(kvm, rmapp, NULL);
 	while (spte) {
-		BUG_ON(!spte);
 		BUG_ON(!(*spte & PT_PRESENT_MASK));
 		rmap_printk("rmap_write_protect: spte %p %llx\n", spte, *spte);
 		if (is_writable_pte(*spte)) {
@@ -1027,12 +1033,11 @@ static int rmap_write_protect(struct kvm *kvm, u64 gfn)
 	/* check for huge page mappings */
 	for (i = PT_DIRECTORY_LEVEL;
 	     i < PT_PAGE_TABLE_LEVEL + KVM_NR_PAGE_SIZES; ++i) {
-		rmapp = gfn_to_rmap(kvm, gfn, i);
+		rmapp = __gfn_to_rmap(kvm, gfn, i, slot);
 		spte = rmap_next(kvm, rmapp, NULL);
 		while (spte) {
-			BUG_ON(!spte);
 			BUG_ON(!(*spte & PT_PRESENT_MASK));
-			BUG_ON((*spte & (PT_PAGE_SIZE_MASK|PT_PRESENT_MASK)) != (PT_PAGE_SIZE_MASK|PT_PRESENT_MASK));
+			BUG_ON(!is_large_pte(*spte));
 			pgprintk("rmap_write_protect(large): spte %p %llx %lld\n", spte, *spte, gfn);
 			if (is_writable_pte(*spte)) {
 				drop_spte(kvm, spte);
@@ -1047,6 +1052,14 @@ static int rmap_write_protect(struct kvm *kvm, u64 gfn)
 	return write_protected;
 }
 
+static int rmap_write_protect(struct kvm *kvm, u64 gfn)
+{
+	struct kvm_memory_slot *slot;
+
+	slot = gfn_to_memslot(kvm, gfn);
+	return kvm_mmu_rmap_write_protect(kvm, gfn, slot);
+}
+
 static int kvm_unmap_rmapp(struct kvm *kvm, unsigned long *rmapp,
 			   unsigned long data)
 {
@@ -1103,15 +1116,15 @@ static int kvm_handle_hva(struct kvm *kvm, unsigned long hva,
 			  int (*handler)(struct kvm *kvm, unsigned long *rmapp,
 					 unsigned long data))
 {
-	int i, j;
+	int j;
 	int ret;
 	int retval = 0;
 	struct kvm_memslots *slots;
+	struct kvm_memory_slot *memslot;
 
 	slots = kvm_memslots(kvm);
 
-	for (i = 0; i < slots->nmemslots; i++) {
-		struct kvm_memory_slot *memslot = &slots->memslots[i];
+	kvm_for_each_memslot(memslot, slots) {
 		unsigned long start = memslot->userspace_addr;
 		unsigned long end;
 
@@ -1324,7 +1337,7 @@ static struct kvm_mmu_page *kvm_mmu_alloc_page(struct kvm_vcpu *vcpu,
 						  PAGE_SIZE);
 	set_page_private(virt_to_page(sp->spt), (unsigned long)sp);
 	list_add(&sp->link, &vcpu->kvm->arch.active_mmu_pages);
-	bitmap_zero(sp->slot_bitmap, KVM_MEMORY_SLOTS + KVM_PRIVATE_MEM_SLOTS);
+	bitmap_zero(sp->slot_bitmap, KVM_MEM_SLOTS_NUM);
 	sp->parent_ptes = 0;
 	mmu_page_add_parent_pte(vcpu, sp, parent_pte);
 	kvm_mod_used_mmu_pages(vcpu->kvm, +1);
@@ -1511,6 +1524,13 @@ static int kvm_sync_page_transient(struct kvm_vcpu *vcpu,
 	return ret;
 }
 
+#ifdef CONFIG_KVM_MMU_AUDIT
+#include "mmu_audit.c"
+#else
+static void kvm_mmu_audit(struct kvm_vcpu *vcpu, int point) { }
+static void mmu_audit_disable(void) { }
+#endif
+
 static int kvm_sync_page(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp,
 			 struct list_head *invalid_list)
 {
@@ -1640,6 +1660,18 @@ static void init_shadow_page_table(struct kvm_mmu_page *sp)
 		sp->spt[i] = 0ull;
 }
 
+static void __clear_sp_write_flooding_count(struct kvm_mmu_page *sp)
+{
+	sp->write_flooding_count = 0;
+}
+
+static void clear_sp_write_flooding_count(u64 *spte)
+{
+	struct kvm_mmu_page *sp =  page_header(__pa(spte));
+
+	__clear_sp_write_flooding_count(sp);
+}
+
 static struct kvm_mmu_page *kvm_mmu_get_page(struct kvm_vcpu *vcpu,
 					     gfn_t gfn,
 					     gva_t gaddr,
@@ -1683,6 +1715,7 @@ static struct kvm_mmu_page *kvm_mmu_get_page(struct kvm_vcpu *vcpu,
 		} else if (sp->unsync)
 			kvm_mmu_mark_parents_unsync(sp);
 
+		__clear_sp_write_flooding_count(sp);
 		trace_kvm_mmu_get_page(sp, false);
 		return sp;
 	}
@@ -1796,7 +1829,7 @@ static void validate_direct_spte(struct kvm_vcpu *vcpu, u64 *sptep,
 	}
 }
 
-static void mmu_page_zap_pte(struct kvm *kvm, struct kvm_mmu_page *sp,
+static bool mmu_page_zap_pte(struct kvm *kvm, struct kvm_mmu_page *sp,
 			     u64 *spte)
 {
 	u64 pte;
@@ -1804,17 +1837,21 @@ static void mmu_page_zap_pte(struct kvm *kvm, struct kvm_mmu_page *sp,
 
 	pte = *spte;
 	if (is_shadow_present_pte(pte)) {
-		if (is_last_spte(pte, sp->role.level))
+		if (is_last_spte(pte, sp->role.level)) {
 			drop_spte(kvm, spte);
-		else {
+			if (is_large_pte(pte))
+				--kvm->stat.lpages;
+		} else {
 			child = page_header(pte & PT64_BASE_ADDR_MASK);
 			drop_parent_pte(child, spte);
 		}
-	} else if (is_mmio_spte(pte))
+		return true;
+	}
+
+	if (is_mmio_spte(pte))
 		mmu_spte_clear_no_track(spte);
 
-	if (is_large_pte(pte))
-		--kvm->stat.lpages;
+	return false;
 }
 
 static void kvm_mmu_page_unlink_children(struct kvm *kvm,
@@ -1831,15 +1868,6 @@ static void kvm_mmu_put_page(struct kvm_mmu_page *sp, u64 *parent_pte)
 	mmu_page_remove_parent_pte(sp, parent_pte);
 }
 
-static void kvm_mmu_reset_last_pte_updated(struct kvm *kvm)
-{
-	int i;
-	struct kvm_vcpu *vcpu;
-
-	kvm_for_each_vcpu(i, vcpu, kvm)
-		vcpu->arch.last_pte_updated = NULL;
-}
-
 static void kvm_mmu_unlink_parents(struct kvm *kvm, struct kvm_mmu_page *sp)
 {
 	u64 *parent_pte;
@@ -1899,7 +1927,6 @@ static int kvm_mmu_prepare_zap_page(struct kvm *kvm, struct kvm_mmu_page *sp,
 	}
 
 	sp->role.invalid = 1;
-	kvm_mmu_reset_last_pte_updated(kvm);
 	return ret;
 }
 
@@ -1985,7 +2012,7 @@ void kvm_mmu_change_mmu_pages(struct kvm *kvm, unsigned int goal_nr_mmu_pages)
 	kvm->arch.n_max_mmu_pages = goal_nr_mmu_pages;
 }
 
-static int kvm_mmu_unprotect_page(struct kvm *kvm, gfn_t gfn)
+int kvm_mmu_unprotect_page(struct kvm *kvm, gfn_t gfn)
 {
 	struct kvm_mmu_page *sp;
 	struct hlist_node *node;
@@ -1994,7 +2021,7 @@ static int kvm_mmu_unprotect_page(struct kvm *kvm, gfn_t gfn)
 
 	pgprintk("%s: looking for gfn %llx\n", __func__, gfn);
 	r = 0;
-
+	spin_lock(&kvm->mmu_lock);
 	for_each_gfn_indirect_valid_sp(kvm, sp, gfn, node) {
 		pgprintk("%s: gfn %llx role %x\n", __func__, gfn,
 			 sp->role.word);
@@ -2002,22 +2029,11 @@ static int kvm_mmu_unprotect_page(struct kvm *kvm, gfn_t gfn)
 		kvm_mmu_prepare_zap_page(kvm, sp, &invalid_list);
 	}
 	kvm_mmu_commit_zap_page(kvm, &invalid_list);
-	return r;
-}
-
-static void mmu_unshadow(struct kvm *kvm, gfn_t gfn)
-{
-	struct kvm_mmu_page *sp;
-	struct hlist_node *node;
-	LIST_HEAD(invalid_list);
+	spin_unlock(&kvm->mmu_lock);
 
-	for_each_gfn_indirect_valid_sp(kvm, sp, gfn, node) {
-		pgprintk("%s: zap %llx %x\n",
-			 __func__, gfn, sp->role.word);
-		kvm_mmu_prepare_zap_page(kvm, sp, &invalid_list);
-	}
-	kvm_mmu_commit_zap_page(kvm, &invalid_list);
+	return r;
 }
+EXPORT_SYMBOL_GPL(kvm_mmu_unprotect_page);
 
 static void page_header_update_slot(struct kvm *kvm, void *pte, gfn_t gfn)
 {
@@ -2169,8 +2185,6 @@ static int mmu_need_write_protect(struct kvm_vcpu *vcpu, gfn_t gfn,
 			return 1;
 
 		if (!need_unsync && !s->unsync) {
-			if (!oos_shadow)
-				return 1;
 			need_unsync = true;
 		}
 	}
@@ -2191,11 +2205,6 @@ static int set_spte(struct kvm_vcpu *vcpu, u64 *sptep,
 	if (set_mmio_spte(sptep, gfn, pfn, pte_access))
 		return 0;
 
-	/*
-	 * We don't set the accessed bit, since we sometimes want to see
-	 * whether the guest actually used the pte (in order to detect
-	 * demand paging).
-	 */
 	spte = PT_PRESENT_MASK;
 	if (!speculative)
 		spte |= shadow_accessed_mask;
@@ -2346,10 +2355,6 @@ static void mmu_set_spte(struct kvm_vcpu *vcpu, u64 *sptep,
 		}
 	}
 	kvm_release_pfn_clean(pfn);
-	if (speculative) {
-		vcpu->arch.last_pte_updated = sptep;
-		vcpu->arch.last_pte_gfn = gfn;
-	}
 }
 
 static void nonpaging_new_cr3(struct kvm_vcpu *vcpu)
@@ -2840,12 +2845,12 @@ static void mmu_sync_roots(struct kvm_vcpu *vcpu)
 		return;
 
 	vcpu_clear_mmio_info(vcpu, ~0ul);
-	trace_kvm_mmu_audit(vcpu, AUDIT_PRE_SYNC);
+	kvm_mmu_audit(vcpu, AUDIT_PRE_SYNC);
 	if (vcpu->arch.mmu.root_level == PT64_ROOT_LEVEL) {
 		hpa_t root = vcpu->arch.mmu.root_hpa;
 		sp = page_header(root);
 		mmu_sync_children(vcpu, sp);
-		trace_kvm_mmu_audit(vcpu, AUDIT_POST_SYNC);
+		kvm_mmu_audit(vcpu, AUDIT_POST_SYNC);
 		return;
 	}
 	for (i = 0; i < 4; ++i) {
@@ -2857,7 +2862,7 @@ static void mmu_sync_roots(struct kvm_vcpu *vcpu)
 			mmu_sync_children(vcpu, sp);
 		}
 	}
-	trace_kvm_mmu_audit(vcpu, AUDIT_POST_SYNC);
+	kvm_mmu_audit(vcpu, AUDIT_POST_SYNC);
 }
 
 void kvm_mmu_sync_roots(struct kvm_vcpu *vcpu)
@@ -3510,28 +3515,119 @@ static void mmu_pte_write_flush_tlb(struct kvm_vcpu *vcpu, bool zap_page,
 		kvm_mmu_flush_tlb(vcpu);
 }
 
-static bool last_updated_pte_accessed(struct kvm_vcpu *vcpu)
+static u64 mmu_pte_write_fetch_gpte(struct kvm_vcpu *vcpu, gpa_t *gpa,
+				    const u8 *new, int *bytes)
 {
-	u64 *spte = vcpu->arch.last_pte_updated;
+	u64 gentry;
+	int r;
+
+	/*
+	 * Assume that the pte write on a page table of the same type
+	 * as the current vcpu paging mode since we update the sptes only
+	 * when they have the same mode.
+	 */
+	if (is_pae(vcpu) && *bytes == 4) {
+		/* Handle a 32-bit guest writing two halves of a 64-bit gpte */
+		*gpa &= ~(gpa_t)7;
+		*bytes = 8;
+		r = kvm_read_guest(vcpu->kvm, *gpa, &gentry, min(*bytes, 8));
+		if (r)
+			gentry = 0;
+		new = (const u8 *)&gentry;
+	}
 
-	return !!(spte && (*spte & shadow_accessed_mask));
+	switch (*bytes) {
+	case 4:
+		gentry = *(const u32 *)new;
+		break;
+	case 8:
+		gentry = *(const u64 *)new;
+		break;
+	default:
+		gentry = 0;
+		break;
+	}
+
+	return gentry;
 }
 
-static void kvm_mmu_access_page(struct kvm_vcpu *vcpu, gfn_t gfn)
+/*
+ * If we're seeing too many writes to a page, it may no longer be a page table,
+ * or we may be forking, in which case it is better to unmap the page.
+ */
+static bool detect_write_flooding(struct kvm_mmu_page *sp, u64 *spte)
 {
-	u64 *spte = vcpu->arch.last_pte_updated;
+	/*
+	 * Skip write-flooding detected for the sp whose level is 1, because
+	 * it can become unsync, then the guest page is not write-protected.
+	 */
+	if (sp->role.level == 1)
+		return false;
 
-	if (spte
-	    && vcpu->arch.last_pte_gfn == gfn
-	    && shadow_accessed_mask
-	    && !(*spte & shadow_accessed_mask)
-	    && is_shadow_present_pte(*spte))
-		set_bit(PT_ACCESSED_SHIFT, (unsigned long *)spte);
+	return ++sp->write_flooding_count >= 3;
+}
+
+/*
+ * Misaligned accesses are too much trouble to fix up; also, they usually
+ * indicate a page is not used as a page table.
+ */
+static bool detect_write_misaligned(struct kvm_mmu_page *sp, gpa_t gpa,
+				    int bytes)
+{
+	unsigned offset, pte_size, misaligned;
+
+	pgprintk("misaligned: gpa %llx bytes %d role %x\n",
+		 gpa, bytes, sp->role.word);
+
+	offset = offset_in_page(gpa);
+	pte_size = sp->role.cr4_pae ? 8 : 4;
+
+	/*
+	 * Sometimes, the OS only writes the last one bytes to update status
+	 * bits, for example, in linux, andb instruction is used in clear_bit().
+	 */
+	if (!(offset & (pte_size - 1)) && bytes == 1)
+		return false;
+
+	misaligned = (offset ^ (offset + bytes - 1)) & ~(pte_size - 1);
+	misaligned |= bytes < 4;
+
+	return misaligned;
+}
+
+static u64 *get_written_sptes(struct kvm_mmu_page *sp, gpa_t gpa, int *nspte)
+{
+	unsigned page_offset, quadrant;
+	u64 *spte;
+	int level;
+
+	page_offset = offset_in_page(gpa);
+	level = sp->role.level;
+	*nspte = 1;
+	if (!sp->role.cr4_pae) {
+		page_offset <<= 1;	/* 32->64 */
+		/*
+		 * A 32-bit pde maps 4MB while the shadow pdes map
+		 * only 2MB.  So we need to double the offset again
+		 * and zap two pdes instead of one.
+		 */
+		if (level == PT32_ROOT_LEVEL) {
+			page_offset &= ~7; /* kill rounding error */
+			page_offset <<= 1;
+			*nspte = 2;
+		}
+		quadrant = page_offset >> PAGE_SHIFT;
+		page_offset &= ~PAGE_MASK;
+		if (quadrant != sp->role.quadrant)
+			return NULL;
+	}
+
+	spte = &sp->spt[page_offset / sizeof(*spte)];
+	return spte;
 }
 
 void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
-		       const u8 *new, int bytes,
-		       bool guest_initiated)
+		       const u8 *new, int bytes)
 {
 	gfn_t gfn = gpa >> PAGE_SHIFT;
 	union kvm_mmu_page_role mask = { .word = 0 };
@@ -3539,8 +3635,7 @@ void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
 	struct hlist_node *node;
 	LIST_HEAD(invalid_list);
 	u64 entry, gentry, *spte;
-	unsigned pte_size, page_offset, misaligned, quadrant, offset;
-	int level, npte, invlpg_counter, r, flooded = 0;
+	int npte;
 	bool remote_flush, local_flush, zap_page;
 
 	/*
@@ -3551,112 +3646,45 @@ void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
 		return;
 
 	zap_page = remote_flush = local_flush = false;
-	offset = offset_in_page(gpa);
 
 	pgprintk("%s: gpa %llx bytes %d\n", __func__, gpa, bytes);
 
-	invlpg_counter = atomic_read(&vcpu->kvm->arch.invlpg_counter);
+	gentry = mmu_pte_write_fetch_gpte(vcpu, &gpa, new, &bytes);
 
 	/*
-	 * Assume that the pte write on a page table of the same type
-	 * as the current vcpu paging mode since we update the sptes only
-	 * when they have the same mode.
+	 * No need to care whether allocation memory is successful
+	 * or not since pte prefetch is skiped if it does not have
+	 * enough objects in the cache.
 	 */
-	if ((is_pae(vcpu) && bytes == 4) || !new) {
-		/* Handle a 32-bit guest writing two halves of a 64-bit gpte */
-		if (is_pae(vcpu)) {
-			gpa &= ~(gpa_t)7;
-			bytes = 8;
-		}
-		r = kvm_read_guest(vcpu->kvm, gpa, &gentry, min(bytes, 8));
-		if (r)
-			gentry = 0;
-		new = (const u8 *)&gentry;
-	}
-
-	switch (bytes) {
-	case 4:
-		gentry = *(const u32 *)new;
-		break;
-	case 8:
-		gentry = *(const u64 *)new;
-		break;
-	default:
-		gentry = 0;
-		break;
-	}
+	mmu_topup_memory_caches(vcpu);
 
 	spin_lock(&vcpu->kvm->mmu_lock);
-	if (atomic_read(&vcpu->kvm->arch.invlpg_counter) != invlpg_counter)
-		gentry = 0;
-	kvm_mmu_free_some_pages(vcpu);
 	++vcpu->kvm->stat.mmu_pte_write;
-	trace_kvm_mmu_audit(vcpu, AUDIT_PRE_PTE_WRITE);
-	if (guest_initiated) {
-		kvm_mmu_access_page(vcpu, gfn);
-		if (gfn == vcpu->arch.last_pt_write_gfn
-		    && !last_updated_pte_accessed(vcpu)) {
-			++vcpu->arch.last_pt_write_count;
-			if (vcpu->arch.last_pt_write_count >= 3)
-				flooded = 1;
-		} else {
-			vcpu->arch.last_pt_write_gfn = gfn;
-			vcpu->arch.last_pt_write_count = 1;
-			vcpu->arch.last_pte_updated = NULL;
-		}
-	}
+	kvm_mmu_audit(vcpu, AUDIT_PRE_PTE_WRITE);
 
 	mask.cr0_wp = mask.cr4_pae = mask.nxe = 1;
 	for_each_gfn_indirect_valid_sp(vcpu->kvm, sp, gfn, node) {
-		pte_size = sp->role.cr4_pae ? 8 : 4;
-		misaligned = (offset ^ (offset + bytes - 1)) & ~(pte_size - 1);
-		misaligned |= bytes < 4;
-		if (misaligned || flooded) {
-			/*
-			 * Misaligned accesses are too much trouble to fix
-			 * up; also, they usually indicate a page is not used
-			 * as a page table.
-			 *
-			 * If we're seeing too many writes to a page,
-			 * it may no longer be a page table, or we may be
-			 * forking, in which case it is better to unmap the
-			 * page.
-			 */
-			pgprintk("misaligned: gpa %llx bytes %d role %x\n",
-				 gpa, bytes, sp->role.word);
+		spte = get_written_sptes(sp, gpa, &npte);
+
+		if (detect_write_misaligned(sp, gpa, bytes) ||
+		      detect_write_flooding(sp, spte)) {
 			zap_page |= !!kvm_mmu_prepare_zap_page(vcpu->kvm, sp,
 						     &invalid_list);
 			++vcpu->kvm->stat.mmu_flooded;
 			continue;
 		}
-		page_offset = offset;
-		level = sp->role.level;
-		npte = 1;
-		if (!sp->role.cr4_pae) {
-			page_offset <<= 1;	/* 32->64 */
-			/*
-			 * A 32-bit pde maps 4MB while the shadow pdes map
-			 * only 2MB.  So we need to double the offset again
-			 * and zap two pdes instead of one.
-			 */
-			if (level == PT32_ROOT_LEVEL) {
-				page_offset &= ~7; /* kill rounding error */
-				page_offset <<= 1;
-				npte = 2;
-			}
-			quadrant = page_offset >> PAGE_SHIFT;
-			page_offset &= ~PAGE_MASK;
-			if (quadrant != sp->role.quadrant)
-				continue;
-		}
+
+		spte = get_written_sptes(sp, gpa, &npte);
+		if (!spte)
+			continue;
+
 		local_flush = true;
-		spte = &sp->spt[page_offset / sizeof(*spte)];
 		while (npte--) {
 			entry = *spte;
 			mmu_page_zap_pte(vcpu->kvm, sp, spte);
 			if (gentry &&
 			      !((sp->role.word ^ vcpu->arch.mmu.base_role.word)
-			      & mask.word))
+			      & mask.word) && rmap_can_add(vcpu))
 				mmu_pte_write_new_pte(vcpu, sp, spte, &gentry);
 			if (!remote_flush && need_remote_flush(entry, *spte))
 				remote_flush = true;
@@ -3665,7 +3693,7 @@ void kvm_mmu_pte_write(struct kvm_vcpu *vcpu, gpa_t gpa,
 	}
 	mmu_pte_write_flush_tlb(vcpu, zap_page, remote_flush, local_flush);
 	kvm_mmu_commit_zap_page(vcpu->kvm, &invalid_list);
-	trace_kvm_mmu_audit(vcpu, AUDIT_POST_PTE_WRITE);
+	kvm_mmu_audit(vcpu, AUDIT_POST_PTE_WRITE);
 	spin_unlock(&vcpu->kvm->mmu_lock);
 }
 
@@ -3679,9 +3707,8 @@ int kvm_mmu_unprotect_page_virt(struct kvm_vcpu *vcpu, gva_t gva)
 
 	gpa = kvm_mmu_gva_to_gpa_read(vcpu, gva, NULL);
 
-	spin_lock(&vcpu->kvm->mmu_lock);
 	r = kvm_mmu_unprotect_page(vcpu->kvm, gpa >> PAGE_SHIFT);
-	spin_unlock(&vcpu->kvm->mmu_lock);
+
 	return r;
 }
 EXPORT_SYMBOL_GPL(kvm_mmu_unprotect_page_virt);
@@ -3702,10 +3729,18 @@ void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu)
 	kvm_mmu_commit_zap_page(vcpu->kvm, &invalid_list);
 }
 
+static bool is_mmio_page_fault(struct kvm_vcpu *vcpu, gva_t addr)
+{
+	if (vcpu->arch.mmu.direct_map || mmu_is_nested(vcpu))
+		return vcpu_match_mmio_gpa(vcpu, addr);
+
+	return vcpu_match_mmio_gva(vcpu, addr);
+}
+
 int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t cr2, u32 error_code,
 		       void *insn, int insn_len)
 {
-	int r;
+	int r, emulation_type = EMULTYPE_RETRY;
 	enum emulation_result er;
 
 	r = vcpu->arch.mmu.page_fault(vcpu, cr2, error_code, false);
@@ -3717,11 +3752,10 @@ int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t cr2, u32 error_code,
 		goto out;
 	}
 
-	r = mmu_topup_memory_caches(vcpu);
-	if (r)
-		goto out;
+	if (is_mmio_page_fault(vcpu, cr2))
+		emulation_type = 0;
 
-	er = x86_emulate_instruction(vcpu, cr2, 0, insn, insn_len);
+	er = x86_emulate_instruction(vcpu, cr2, emulation_type, insn, insn_len);
 
 	switch (er) {
 	case EMULATE_DONE:
@@ -3792,7 +3826,11 @@ static int alloc_mmu_pages(struct kvm_vcpu *vcpu)
 int kvm_mmu_create(struct kvm_vcpu *vcpu)
 {
 	ASSERT(vcpu);
-	ASSERT(!VALID_PAGE(vcpu->arch.mmu.root_hpa));
+
+	vcpu->arch.walk_mmu = &vcpu->arch.mmu;
+	vcpu->arch.mmu.root_hpa = INVALID_PAGE;
+	vcpu->arch.mmu.translate_gpa = translate_gpa;
+	vcpu->arch.nested_mmu.translate_gpa = translate_nested_gpa;
 
 	return alloc_mmu_pages(vcpu);
 }
@@ -3852,14 +3890,14 @@ restart:
 	spin_unlock(&kvm->mmu_lock);
 }
 
-static int kvm_mmu_remove_some_alloc_mmu_pages(struct kvm *kvm,
-					       struct list_head *invalid_list)
+static void kvm_mmu_remove_some_alloc_mmu_pages(struct kvm *kvm,
+						struct list_head *invalid_list)
 {
 	struct kvm_mmu_page *page;
 
 	page = container_of(kvm->arch.active_mmu_pages.prev,
 			    struct kvm_mmu_page, link);
-	return kvm_mmu_prepare_zap_page(kvm, page, invalid_list);
+	kvm_mmu_prepare_zap_page(kvm, page, invalid_list);
 }
 
 static int mmu_shrink(struct shrinker *shrink, struct shrink_control *sc)
@@ -3874,15 +3912,15 @@ static int mmu_shrink(struct shrinker *shrink, struct shrink_control *sc)
 	raw_spin_lock(&kvm_lock);
 
 	list_for_each_entry(kvm, &vm_list, vm_list) {
-		int idx, freed_pages;
+		int idx;
 		LIST_HEAD(invalid_list);
 
 		idx = srcu_read_lock(&kvm->srcu);
 		spin_lock(&kvm->mmu_lock);
 		if (!kvm_freed && nr_to_scan > 0 &&
 		    kvm->arch.n_used_mmu_pages > 0) {
-			freed_pages = kvm_mmu_remove_some_alloc_mmu_pages(kvm,
-							  &invalid_list);
+			kvm_mmu_remove_some_alloc_mmu_pages(kvm,
+							    &invalid_list);
 			kvm_freed = kvm;
 		}
 		nr_to_scan--;
@@ -3944,15 +3982,15 @@ nomem:
  */
 unsigned int kvm_mmu_calculate_mmu_pages(struct kvm *kvm)
 {
-	int i;
 	unsigned int nr_mmu_pages;
 	unsigned int  nr_pages = 0;
 	struct kvm_memslots *slots;
+	struct kvm_memory_slot *memslot;
 
 	slots = kvm_memslots(kvm);
 
-	for (i = 0; i < slots->nmemslots; i++)
-		nr_pages += slots->memslots[i].npages;
+	kvm_for_each_memslot(memslot, slots)
+		nr_pages += memslot->npages;
 
 	nr_mmu_pages = nr_pages * KVM_PERMILLE_MMU_PAGES / 1000;
 	nr_mmu_pages = max(nr_mmu_pages,
@@ -3961,127 +3999,6 @@ unsigned int kvm_mmu_calculate_mmu_pages(struct kvm *kvm)
 	return nr_mmu_pages;
 }
 
-static void *pv_mmu_peek_buffer(struct kvm_pv_mmu_op_buffer *buffer,
-				unsigned len)
-{
-	if (len > buffer->len)
-		return NULL;
-	return buffer->ptr;
-}
-
-static void *pv_mmu_read_buffer(struct kvm_pv_mmu_op_buffer *buffer,
-				unsigned len)
-{
-	void *ret;
-
-	ret = pv_mmu_peek_buffer(buffer, len);
-	if (!ret)
-		return ret;
-	buffer->ptr += len;
-	buffer->len -= len;
-	buffer->processed += len;
-	return ret;
-}
-
-static int kvm_pv_mmu_write(struct kvm_vcpu *vcpu,
-			     gpa_t addr, gpa_t value)
-{
-	int bytes = 8;
-	int r;
-
-	if (!is_long_mode(vcpu) && !is_pae(vcpu))
-		bytes = 4;
-
-	r = mmu_topup_memory_caches(vcpu);
-	if (r)
-		return r;
-
-	if (!emulator_write_phys(vcpu, addr, &value, bytes))
-		return -EFAULT;
-
-	return 1;
-}
-
-static int kvm_pv_mmu_flush_tlb(struct kvm_vcpu *vcpu)
-{
-	(void)kvm_set_cr3(vcpu, kvm_read_cr3(vcpu));
-	return 1;
-}
-
-static int kvm_pv_mmu_release_pt(struct kvm_vcpu *vcpu, gpa_t addr)
-{
-	spin_lock(&vcpu->kvm->mmu_lock);
-	mmu_unshadow(vcpu->kvm, addr >> PAGE_SHIFT);
-	spin_unlock(&vcpu->kvm->mmu_lock);
-	return 1;
-}
-
-static int kvm_pv_mmu_op_one(struct kvm_vcpu *vcpu,
-			     struct kvm_pv_mmu_op_buffer *buffer)
-{
-	struct kvm_mmu_op_header *header;
-
-	header = pv_mmu_peek_buffer(buffer, sizeof *header);
-	if (!header)
-		return 0;
-	switch (header->op) {
-	case KVM_MMU_OP_WRITE_PTE: {
-		struct kvm_mmu_op_write_pte *wpte;
-
-		wpte = pv_mmu_read_buffer(buffer, sizeof *wpte);
-		if (!wpte)
-			return 0;
-		return kvm_pv_mmu_write(vcpu, wpte->pte_phys,
-					wpte->pte_val);
-	}
-	case KVM_MMU_OP_FLUSH_TLB: {
-		struct kvm_mmu_op_flush_tlb *ftlb;
-
-		ftlb = pv_mmu_read_buffer(buffer, sizeof *ftlb);
-		if (!ftlb)
-			return 0;
-		return kvm_pv_mmu_flush_tlb(vcpu);
-	}
-	case KVM_MMU_OP_RELEASE_PT: {
-		struct kvm_mmu_op_release_pt *rpt;
-
-		rpt = pv_mmu_read_buffer(buffer, sizeof *rpt);
-		if (!rpt)
-			return 0;
-		return kvm_pv_mmu_release_pt(vcpu, rpt->pt_phys);
-	}
-	default: return 0;
-	}
-}
-
-int kvm_pv_mmu_op(struct kvm_vcpu *vcpu, unsigned long bytes,
-		  gpa_t addr, unsigned long *ret)
-{
-	int r;
-	struct kvm_pv_mmu_op_buffer *buffer = &vcpu->arch.mmu_op_buffer;
-
-	buffer->ptr = buffer->buf;
-	buffer->len = min_t(unsigned long, bytes, sizeof buffer->buf);
-	buffer->processed = 0;
-
-	r = kvm_read_guest(vcpu->kvm, addr, buffer->buf, buffer->len);
-	if (r)
-		goto out;
-
-	while (buffer->len) {
-		r = kvm_pv_mmu_op_one(vcpu, buffer);
-		if (r < 0)
-			goto out;
-		if (r == 0)
-			break;
-	}
-
-	r = 1;
-out:
-	*ret = buffer->processed;
-	return r;
-}
-
 int kvm_mmu_get_spte_hierarchy(struct kvm_vcpu *vcpu, u64 addr, u64 sptes[4])
 {
 	struct kvm_shadow_walk_iterator iterator;
@@ -4110,12 +4027,6 @@ void kvm_mmu_destroy(struct kvm_vcpu *vcpu)
 	mmu_free_memory_caches(vcpu);
 }
 
-#ifdef CONFIG_KVM_MMU_AUDIT
-#include "mmu_audit.c"
-#else
-static void mmu_audit_disable(void) { }
-#endif
-
 void kvm_mmu_module_exit(void)
 {
 	mmu_destroy_caches();
diff --git a/arch/x86/kvm/mmu_audit.c b/arch/x86/kvm/mmu_audit.c
index 746ec259d024..fe15dcc07a6b 100644
--- a/arch/x86/kvm/mmu_audit.c
+++ b/arch/x86/kvm/mmu_audit.c
@@ -19,6 +19,15 @@
 
 #include <linux/ratelimit.h>
 
+char const *audit_point_name[] = {
+	"pre page fault",
+	"post page fault",
+	"pre pte write",
+	"post pte write",
+	"pre sync",
+	"post sync"
+};
+
 #define audit_printk(kvm, fmt, args...)		\
 	printk(KERN_ERR "audit: (%s) error: "	\
 		fmt, audit_point_name[kvm->arch.audit_point], ##args)
@@ -224,7 +233,10 @@ static void audit_vcpu_spte(struct kvm_vcpu *vcpu)
 	mmu_spte_walk(vcpu, audit_spte);
 }
 
-static void kvm_mmu_audit(void *ignore, struct kvm_vcpu *vcpu, int point)
+static bool mmu_audit;
+static struct jump_label_key mmu_audit_key;
+
+static void __kvm_mmu_audit(struct kvm_vcpu *vcpu, int point)
 {
 	static DEFINE_RATELIMIT_STATE(ratelimit_state, 5 * HZ, 10);
 
@@ -236,18 +248,18 @@ static void kvm_mmu_audit(void *ignore, struct kvm_vcpu *vcpu, int point)
 	audit_vcpu_spte(vcpu);
 }
 
-static bool mmu_audit;
+static inline void kvm_mmu_audit(struct kvm_vcpu *vcpu, int point)
+{
+	if (static_branch((&mmu_audit_key)))
+		__kvm_mmu_audit(vcpu, point);
+}
 
 static void mmu_audit_enable(void)
 {
-	int ret;
-
 	if (mmu_audit)
 		return;
 
-	ret = register_trace_kvm_mmu_audit(kvm_mmu_audit, NULL);
-	WARN_ON(ret);
-
+	jump_label_inc(&mmu_audit_key);
 	mmu_audit = true;
 }
 
@@ -256,8 +268,7 @@ static void mmu_audit_disable(void)
 	if (!mmu_audit)
 		return;
 
-	unregister_trace_kvm_mmu_audit(kvm_mmu_audit, NULL);
-	tracepoint_synchronize_unregister();
+	jump_label_dec(&mmu_audit_key);
 	mmu_audit = false;
 }
 
diff --git a/arch/x86/kvm/mmutrace.h b/arch/x86/kvm/mmutrace.h
index eed67f34146d..89fb0e81322a 100644
--- a/arch/x86/kvm/mmutrace.h
+++ b/arch/x86/kvm/mmutrace.h
@@ -243,25 +243,6 @@ TRACE_EVENT(
 	TP_printk("addr:%llx gfn %llx access %x", __entry->addr, __entry->gfn,
 		  __entry->access)
 );
-
-TRACE_EVENT(
-	kvm_mmu_audit,
-	TP_PROTO(struct kvm_vcpu *vcpu, int audit_point),
-	TP_ARGS(vcpu, audit_point),
-
-	TP_STRUCT__entry(
-		__field(struct kvm_vcpu *, vcpu)
-		__field(int, audit_point)
-	),
-
-	TP_fast_assign(
-		__entry->vcpu = vcpu;
-		__entry->audit_point = audit_point;
-	),
-
-	TP_printk("vcpu:%d %s", __entry->vcpu->cpu,
-		  audit_point_name[__entry->audit_point])
-);
 #endif /* _TRACE_KVMMMU_H */
 
 #undef TRACE_INCLUDE_PATH
diff --git a/arch/x86/kvm/paging_tmpl.h b/arch/x86/kvm/paging_tmpl.h
index 92994100638b..15610285ebb6 100644
--- a/arch/x86/kvm/paging_tmpl.h
+++ b/arch/x86/kvm/paging_tmpl.h
@@ -497,6 +497,7 @@ static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr,
 	     shadow_walk_next(&it)) {
 		gfn_t table_gfn;
 
+		clear_sp_write_flooding_count(it.sptep);
 		drop_large_spte(vcpu, it.sptep);
 
 		sp = NULL;
@@ -522,6 +523,7 @@ static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr,
 	     shadow_walk_next(&it)) {
 		gfn_t direct_gfn;
 
+		clear_sp_write_flooding_count(it.sptep);
 		validate_direct_spte(vcpu, it.sptep, direct_access);
 
 		drop_large_spte(vcpu, it.sptep);
@@ -536,6 +538,7 @@ static u64 *FNAME(fetch)(struct kvm_vcpu *vcpu, gva_t addr,
 		link_shadow_page(it.sptep, sp);
 	}
 
+	clear_sp_write_flooding_count(it.sptep);
 	mmu_set_spte(vcpu, it.sptep, access, gw->pte_access,
 		     user_fault, write_fault, emulate, it.level,
 		     gw->gfn, pfn, prefault, map_writable);
@@ -599,11 +602,9 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr, u32 error_code,
 	 */
 	if (!r) {
 		pgprintk("%s: guest page fault\n", __func__);
-		if (!prefault) {
+		if (!prefault)
 			inject_page_fault(vcpu, &walker.fault);
-			/* reset fork detector */
-			vcpu->arch.last_pt_write_count = 0;
-		}
+
 		return 0;
 	}
 
@@ -631,7 +632,7 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr, u32 error_code,
 	if (mmu_notifier_retry(vcpu, mmu_seq))
 		goto out_unlock;
 
-	trace_kvm_mmu_audit(vcpu, AUDIT_PRE_PAGE_FAULT);
+	kvm_mmu_audit(vcpu, AUDIT_PRE_PAGE_FAULT);
 	kvm_mmu_free_some_pages(vcpu);
 	if (!force_pt_level)
 		transparent_hugepage_adjust(vcpu, &walker.gfn, &pfn, &level);
@@ -641,11 +642,8 @@ static int FNAME(page_fault)(struct kvm_vcpu *vcpu, gva_t addr, u32 error_code,
 	pgprintk("%s: shadow pte %p %llx emulate %d\n", __func__,
 		 sptep, *sptep, emulate);
 
-	if (!emulate)
-		vcpu->arch.last_pt_write_count = 0; /* reset fork detector */
-
 	++vcpu->stat.pf_fixed;
-	trace_kvm_mmu_audit(vcpu, AUDIT_POST_PAGE_FAULT);
+	kvm_mmu_audit(vcpu, AUDIT_POST_PAGE_FAULT);
 	spin_unlock(&vcpu->kvm->mmu_lock);
 
 	return emulate;
@@ -656,65 +654,66 @@ out_unlock:
 	return 0;
 }
 
+static gpa_t FNAME(get_level1_sp_gpa)(struct kvm_mmu_page *sp)
+{
+	int offset = 0;
+
+	WARN_ON(sp->role.level != 1);
+
+	if (PTTYPE == 32)
+		offset = sp->role.quadrant << PT64_LEVEL_BITS;
+
+	return gfn_to_gpa(sp->gfn) + offset * sizeof(pt_element_t);
+}
+
 static void FNAME(invlpg)(struct kvm_vcpu *vcpu, gva_t gva)
 {
 	struct kvm_shadow_walk_iterator iterator;
 	struct kvm_mmu_page *sp;
-	gpa_t pte_gpa = -1;
 	int level;
 	u64 *sptep;
-	int need_flush = 0;
 
 	vcpu_clear_mmio_info(vcpu, gva);
 
-	spin_lock(&vcpu->kvm->mmu_lock);
+	/*
+	 * No need to check return value here, rmap_can_add() can
+	 * help us to skip pte prefetch later.
+	 */
+	mmu_topup_memory_caches(vcpu);
 
+	spin_lock(&vcpu->kvm->mmu_lock);
 	for_each_shadow_entry(vcpu, gva, iterator) {
 		level = iterator.level;
 		sptep = iterator.sptep;
 
 		sp = page_header(__pa(sptep));
 		if (is_last_spte(*sptep, level)) {
-			int offset, shift;
+			pt_element_t gpte;
+			gpa_t pte_gpa;
 
 			if (!sp->unsync)
 				break;
 
-			shift = PAGE_SHIFT -
-				  (PT_LEVEL_BITS - PT64_LEVEL_BITS) * level;
-			offset = sp->role.quadrant << shift;
-
-			pte_gpa = (sp->gfn << PAGE_SHIFT) + offset;
+			pte_gpa = FNAME(get_level1_sp_gpa)(sp);
 			pte_gpa += (sptep - sp->spt) * sizeof(pt_element_t);
 
-			if (is_shadow_present_pte(*sptep)) {
-				if (is_large_pte(*sptep))
-					--vcpu->kvm->stat.lpages;
-				drop_spte(vcpu->kvm, sptep);
-				need_flush = 1;
-			} else if (is_mmio_spte(*sptep))
-				mmu_spte_clear_no_track(sptep);
+			if (mmu_page_zap_pte(vcpu->kvm, sp, sptep))
+				kvm_flush_remote_tlbs(vcpu->kvm);
 
-			break;
+			if (!rmap_can_add(vcpu))
+				break;
+
+			if (kvm_read_guest_atomic(vcpu->kvm, pte_gpa, &gpte,
+						  sizeof(pt_element_t)))
+				break;
+
+			FNAME(update_pte)(vcpu, sp, sptep, &gpte);
 		}
 
 		if (!is_shadow_present_pte(*sptep) || !sp->unsync_children)
 			break;
 	}
-
-	if (need_flush)
-		kvm_flush_remote_tlbs(vcpu->kvm);
-
-	atomic_inc(&vcpu->kvm->arch.invlpg_counter);
-
 	spin_unlock(&vcpu->kvm->mmu_lock);
-
-	if (pte_gpa == -1)
-		return;
-
-	if (mmu_topup_memory_caches(vcpu))
-		return;
-	kvm_mmu_pte_write(vcpu, pte_gpa, NULL, sizeof(pt_element_t), 0);
 }
 
 static gpa_t FNAME(gva_to_gpa)(struct kvm_vcpu *vcpu, gva_t vaddr, u32 access,
@@ -769,19 +768,14 @@ static gpa_t FNAME(gva_to_gpa_nested)(struct kvm_vcpu *vcpu, gva_t vaddr,
  */
 static int FNAME(sync_page)(struct kvm_vcpu *vcpu, struct kvm_mmu_page *sp)
 {
-	int i, offset, nr_present;
+	int i, nr_present = 0;
 	bool host_writable;
 	gpa_t first_pte_gpa;
 
-	offset = nr_present = 0;
-
 	/* direct kvm_mmu_page can not be unsync. */
 	BUG_ON(sp->role.direct);
 
-	if (PTTYPE == 32)
-		offset = sp->role.quadrant << PT64_LEVEL_BITS;
-
-	first_pte_gpa = gfn_to_gpa(sp->gfn) + offset * sizeof(pt_element_t);
+	first_pte_gpa = FNAME(get_level1_sp_gpa)(sp);
 
 	for (i = 0; i < PT64_ENT_PER_PAGE; i++) {
 		unsigned pte_access;
diff --git a/arch/x86/kvm/pmu.c b/arch/x86/kvm/pmu.c
new file mode 100644
index 000000000000..7aad5446f393
--- /dev/null
+++ b/arch/x86/kvm/pmu.c
@@ -0,0 +1,533 @@
+/*
+ * Kernel-based Virtual Machine -- Performane Monitoring Unit support
+ *
+ * Copyright 2011 Red Hat, Inc. and/or its affiliates.
+ *
+ * Authors:
+ *   Avi Kivity   <avi@redhat.com>
+ *   Gleb Natapov <gleb@redhat.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2.  See
+ * the COPYING file in the top-level directory.
+ *
+ */
+
+#include <linux/types.h>
+#include <linux/kvm_host.h>
+#include <linux/perf_event.h>
+#include "x86.h"
+#include "cpuid.h"
+#include "lapic.h"
+
+static struct kvm_arch_event_perf_mapping {
+	u8 eventsel;
+	u8 unit_mask;
+	unsigned event_type;
+	bool inexact;
+} arch_events[] = {
+	/* Index must match CPUID 0x0A.EBX bit vector */
+	[0] = { 0x3c, 0x00, PERF_COUNT_HW_CPU_CYCLES },
+	[1] = { 0xc0, 0x00, PERF_COUNT_HW_INSTRUCTIONS },
+	[2] = { 0x3c, 0x01, PERF_COUNT_HW_BUS_CYCLES  },
+	[3] = { 0x2e, 0x4f, PERF_COUNT_HW_CACHE_REFERENCES },
+	[4] = { 0x2e, 0x41, PERF_COUNT_HW_CACHE_MISSES },
+	[5] = { 0xc4, 0x00, PERF_COUNT_HW_BRANCH_INSTRUCTIONS },
+	[6] = { 0xc5, 0x00, PERF_COUNT_HW_BRANCH_MISSES },
+};
+
+/* mapping between fixed pmc index and arch_events array */
+int fixed_pmc_events[] = {1, 0, 2};
+
+static bool pmc_is_gp(struct kvm_pmc *pmc)
+{
+	return pmc->type == KVM_PMC_GP;
+}
+
+static inline u64 pmc_bitmask(struct kvm_pmc *pmc)
+{
+	struct kvm_pmu *pmu = &pmc->vcpu->arch.pmu;
+
+	return pmu->counter_bitmask[pmc->type];
+}
+
+static inline bool pmc_enabled(struct kvm_pmc *pmc)
+{
+	struct kvm_pmu *pmu = &pmc->vcpu->arch.pmu;
+	return test_bit(pmc->idx, (unsigned long *)&pmu->global_ctrl);
+}
+
+static inline struct kvm_pmc *get_gp_pmc(struct kvm_pmu *pmu, u32 msr,
+					 u32 base)
+{
+	if (msr >= base && msr < base + pmu->nr_arch_gp_counters)
+		return &pmu->gp_counters[msr - base];
+	return NULL;
+}
+
+static inline struct kvm_pmc *get_fixed_pmc(struct kvm_pmu *pmu, u32 msr)
+{
+	int base = MSR_CORE_PERF_FIXED_CTR0;
+	if (msr >= base && msr < base + pmu->nr_arch_fixed_counters)
+		return &pmu->fixed_counters[msr - base];
+	return NULL;
+}
+
+static inline struct kvm_pmc *get_fixed_pmc_idx(struct kvm_pmu *pmu, int idx)
+{
+	return get_fixed_pmc(pmu, MSR_CORE_PERF_FIXED_CTR0 + idx);
+}
+
+static struct kvm_pmc *global_idx_to_pmc(struct kvm_pmu *pmu, int idx)
+{
+	if (idx < X86_PMC_IDX_FIXED)
+		return get_gp_pmc(pmu, MSR_P6_EVNTSEL0 + idx, MSR_P6_EVNTSEL0);
+	else
+		return get_fixed_pmc_idx(pmu, idx - X86_PMC_IDX_FIXED);
+}
+
+void kvm_deliver_pmi(struct kvm_vcpu *vcpu)
+{
+	if (vcpu->arch.apic)
+		kvm_apic_local_deliver(vcpu->arch.apic, APIC_LVTPC);
+}
+
+static void trigger_pmi(struct irq_work *irq_work)
+{
+	struct kvm_pmu *pmu = container_of(irq_work, struct kvm_pmu,
+			irq_work);
+	struct kvm_vcpu *vcpu = container_of(pmu, struct kvm_vcpu,
+			arch.pmu);
+
+	kvm_deliver_pmi(vcpu);
+}
+
+static void kvm_perf_overflow(struct perf_event *perf_event,
+			      struct perf_sample_data *data,
+			      struct pt_regs *regs)
+{
+	struct kvm_pmc *pmc = perf_event->overflow_handler_context;
+	struct kvm_pmu *pmu = &pmc->vcpu->arch.pmu;
+	__set_bit(pmc->idx, (unsigned long *)&pmu->global_status);
+}
+
+static void kvm_perf_overflow_intr(struct perf_event *perf_event,
+		struct perf_sample_data *data, struct pt_regs *regs)
+{
+	struct kvm_pmc *pmc = perf_event->overflow_handler_context;
+	struct kvm_pmu *pmu = &pmc->vcpu->arch.pmu;
+	if (!test_and_set_bit(pmc->idx, (unsigned long *)&pmu->reprogram_pmi)) {
+		kvm_perf_overflow(perf_event, data, regs);
+		kvm_make_request(KVM_REQ_PMU, pmc->vcpu);
+		/*
+		 * Inject PMI. If vcpu was in a guest mode during NMI PMI
+		 * can be ejected on a guest mode re-entry. Otherwise we can't
+		 * be sure that vcpu wasn't executing hlt instruction at the
+		 * time of vmexit and is not going to re-enter guest mode until,
+		 * woken up. So we should wake it, but this is impossible from
+		 * NMI context. Do it from irq work instead.
+		 */
+		if (!kvm_is_in_guest())
+			irq_work_queue(&pmc->vcpu->arch.pmu.irq_work);
+		else
+			kvm_make_request(KVM_REQ_PMI, pmc->vcpu);
+	}
+}
+
+static u64 read_pmc(struct kvm_pmc *pmc)
+{
+	u64 counter, enabled, running;
+
+	counter = pmc->counter;
+
+	if (pmc->perf_event)
+		counter += perf_event_read_value(pmc->perf_event,
+						 &enabled, &running);
+
+	/* FIXME: Scaling needed? */
+
+	return counter & pmc_bitmask(pmc);
+}
+
+static void stop_counter(struct kvm_pmc *pmc)
+{
+	if (pmc->perf_event) {
+		pmc->counter = read_pmc(pmc);
+		perf_event_release_kernel(pmc->perf_event);
+		pmc->perf_event = NULL;
+	}
+}
+
+static void reprogram_counter(struct kvm_pmc *pmc, u32 type,
+		unsigned config, bool exclude_user, bool exclude_kernel,
+		bool intr)
+{
+	struct perf_event *event;
+	struct perf_event_attr attr = {
+		.type = type,
+		.size = sizeof(attr),
+		.pinned = true,
+		.exclude_idle = true,
+		.exclude_host = 1,
+		.exclude_user = exclude_user,
+		.exclude_kernel = exclude_kernel,
+		.config = config,
+	};
+
+	attr.sample_period = (-pmc->counter) & pmc_bitmask(pmc);
+
+	event = perf_event_create_kernel_counter(&attr, -1, current,
+						 intr ? kvm_perf_overflow_intr :
+						 kvm_perf_overflow, pmc);
+	if (IS_ERR(event)) {
+		printk_once("kvm: pmu event creation failed %ld\n",
+				PTR_ERR(event));
+		return;
+	}
+
+	pmc->perf_event = event;
+	clear_bit(pmc->idx, (unsigned long*)&pmc->vcpu->arch.pmu.reprogram_pmi);
+}
+
+static unsigned find_arch_event(struct kvm_pmu *pmu, u8 event_select,
+		u8 unit_mask)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(arch_events); i++)
+		if (arch_events[i].eventsel == event_select
+				&& arch_events[i].unit_mask == unit_mask
+				&& (pmu->available_event_types & (1 << i)))
+			break;
+
+	if (i == ARRAY_SIZE(arch_events))
+		return PERF_COUNT_HW_MAX;
+
+	return arch_events[i].event_type;
+}
+
+static void reprogram_gp_counter(struct kvm_pmc *pmc, u64 eventsel)
+{
+	unsigned config, type = PERF_TYPE_RAW;
+	u8 event_select, unit_mask;
+
+	pmc->eventsel = eventsel;
+
+	stop_counter(pmc);
+
+	if (!(eventsel & ARCH_PERFMON_EVENTSEL_ENABLE) || !pmc_enabled(pmc))
+		return;
+
+	event_select = eventsel & ARCH_PERFMON_EVENTSEL_EVENT;
+	unit_mask = (eventsel & ARCH_PERFMON_EVENTSEL_UMASK) >> 8;
+
+	if (!(event_select & (ARCH_PERFMON_EVENTSEL_EDGE |
+				ARCH_PERFMON_EVENTSEL_INV |
+				ARCH_PERFMON_EVENTSEL_CMASK))) {
+		config = find_arch_event(&pmc->vcpu->arch.pmu, event_select,
+				unit_mask);
+		if (config != PERF_COUNT_HW_MAX)
+			type = PERF_TYPE_HARDWARE;
+	}
+
+	if (type == PERF_TYPE_RAW)
+		config = eventsel & X86_RAW_EVENT_MASK;
+
+	reprogram_counter(pmc, type, config,
+			!(eventsel & ARCH_PERFMON_EVENTSEL_USR),
+			!(eventsel & ARCH_PERFMON_EVENTSEL_OS),
+			eventsel & ARCH_PERFMON_EVENTSEL_INT);
+}
+
+static void reprogram_fixed_counter(struct kvm_pmc *pmc, u8 en_pmi, int idx)
+{
+	unsigned en = en_pmi & 0x3;
+	bool pmi = en_pmi & 0x8;
+
+	stop_counter(pmc);
+
+	if (!en || !pmc_enabled(pmc))
+		return;
+
+	reprogram_counter(pmc, PERF_TYPE_HARDWARE,
+			arch_events[fixed_pmc_events[idx]].event_type,
+			!(en & 0x2), /* exclude user */
+			!(en & 0x1), /* exclude kernel */
+			pmi);
+}
+
+static inline u8 fixed_en_pmi(u64 ctrl, int idx)
+{
+	return (ctrl >> (idx * 4)) & 0xf;
+}
+
+static void reprogram_fixed_counters(struct kvm_pmu *pmu, u64 data)
+{
+	int i;
+
+	for (i = 0; i < pmu->nr_arch_fixed_counters; i++) {
+		u8 en_pmi = fixed_en_pmi(data, i);
+		struct kvm_pmc *pmc = get_fixed_pmc_idx(pmu, i);
+
+		if (fixed_en_pmi(pmu->fixed_ctr_ctrl, i) == en_pmi)
+			continue;
+
+		reprogram_fixed_counter(pmc, en_pmi, i);
+	}
+
+	pmu->fixed_ctr_ctrl = data;
+}
+
+static void reprogram_idx(struct kvm_pmu *pmu, int idx)
+{
+	struct kvm_pmc *pmc = global_idx_to_pmc(pmu, idx);
+
+	if (!pmc)
+		return;
+
+	if (pmc_is_gp(pmc))
+		reprogram_gp_counter(pmc, pmc->eventsel);
+	else {
+		int fidx = idx - X86_PMC_IDX_FIXED;
+		reprogram_fixed_counter(pmc,
+				fixed_en_pmi(pmu->fixed_ctr_ctrl, fidx), fidx);
+	}
+}
+
+static void global_ctrl_changed(struct kvm_pmu *pmu, u64 data)
+{
+	int bit;
+	u64 diff = pmu->global_ctrl ^ data;
+
+	pmu->global_ctrl = data;
+
+	for_each_set_bit(bit, (unsigned long *)&diff, X86_PMC_IDX_MAX)
+		reprogram_idx(pmu, bit);
+}
+
+bool kvm_pmu_msr(struct kvm_vcpu *vcpu, u32 msr)
+{
+	struct kvm_pmu *pmu = &vcpu->arch.pmu;
+	int ret;
+
+	switch (msr) {
+	case MSR_CORE_PERF_FIXED_CTR_CTRL:
+	case MSR_CORE_PERF_GLOBAL_STATUS:
+	case MSR_CORE_PERF_GLOBAL_CTRL:
+	case MSR_CORE_PERF_GLOBAL_OVF_CTRL:
+		ret = pmu->version > 1;
+		break;
+	default:
+		ret = get_gp_pmc(pmu, msr, MSR_IA32_PERFCTR0)
+			|| get_gp_pmc(pmu, msr, MSR_P6_EVNTSEL0)
+			|| get_fixed_pmc(pmu, msr);
+		break;
+	}
+	return ret;
+}
+
+int kvm_pmu_get_msr(struct kvm_vcpu *vcpu, u32 index, u64 *data)
+{
+	struct kvm_pmu *pmu = &vcpu->arch.pmu;
+	struct kvm_pmc *pmc;
+
+	switch (index) {
+	case MSR_CORE_PERF_FIXED_CTR_CTRL:
+		*data = pmu->fixed_ctr_ctrl;
+		return 0;
+	case MSR_CORE_PERF_GLOBAL_STATUS:
+		*data = pmu->global_status;
+		return 0;
+	case MSR_CORE_PERF_GLOBAL_CTRL:
+		*data = pmu->global_ctrl;
+		return 0;
+	case MSR_CORE_PERF_GLOBAL_OVF_CTRL:
+		*data = pmu->global_ovf_ctrl;
+		return 0;
+	default:
+		if ((pmc = get_gp_pmc(pmu, index, MSR_IA32_PERFCTR0)) ||
+				(pmc = get_fixed_pmc(pmu, index))) {
+			*data = read_pmc(pmc);
+			return 0;
+		} else if ((pmc = get_gp_pmc(pmu, index, MSR_P6_EVNTSEL0))) {
+			*data = pmc->eventsel;
+			return 0;
+		}
+	}
+	return 1;
+}
+
+int kvm_pmu_set_msr(struct kvm_vcpu *vcpu, u32 index, u64 data)
+{
+	struct kvm_pmu *pmu = &vcpu->arch.pmu;
+	struct kvm_pmc *pmc;
+
+	switch (index) {
+	case MSR_CORE_PERF_FIXED_CTR_CTRL:
+		if (pmu->fixed_ctr_ctrl == data)
+			return 0;
+		if (!(data & 0xfffffffffffff444)) {
+			reprogram_fixed_counters(pmu, data);
+			return 0;
+		}
+		break;
+	case MSR_CORE_PERF_GLOBAL_STATUS:
+		break; /* RO MSR */
+	case MSR_CORE_PERF_GLOBAL_CTRL:
+		if (pmu->global_ctrl == data)
+			return 0;
+		if (!(data & pmu->global_ctrl_mask)) {
+			global_ctrl_changed(pmu, data);
+			return 0;
+		}
+		break;
+	case MSR_CORE_PERF_GLOBAL_OVF_CTRL:
+		if (!(data & (pmu->global_ctrl_mask & ~(3ull<<62)))) {
+			pmu->global_status &= ~data;
+			pmu->global_ovf_ctrl = data;
+			return 0;
+		}
+		break;
+	default:
+		if ((pmc = get_gp_pmc(pmu, index, MSR_IA32_PERFCTR0)) ||
+				(pmc = get_fixed_pmc(pmu, index))) {
+			data = (s64)(s32)data;
+			pmc->counter += data - read_pmc(pmc);
+			return 0;
+		} else if ((pmc = get_gp_pmc(pmu, index, MSR_P6_EVNTSEL0))) {
+			if (data == pmc->eventsel)
+				return 0;
+			if (!(data & 0xffffffff00200000ull)) {
+				reprogram_gp_counter(pmc, data);
+				return 0;
+			}
+		}
+	}
+	return 1;
+}
+
+int kvm_pmu_read_pmc(struct kvm_vcpu *vcpu, unsigned pmc, u64 *data)
+{
+	struct kvm_pmu *pmu = &vcpu->arch.pmu;
+	bool fast_mode = pmc & (1u << 31);
+	bool fixed = pmc & (1u << 30);
+	struct kvm_pmc *counters;
+	u64 ctr;
+
+	pmc &= (3u << 30) - 1;
+	if (!fixed && pmc >= pmu->nr_arch_gp_counters)
+		return 1;
+	if (fixed && pmc >= pmu->nr_arch_fixed_counters)
+		return 1;
+	counters = fixed ? pmu->fixed_counters : pmu->gp_counters;
+	ctr = read_pmc(&counters[pmc]);
+	if (fast_mode)
+		ctr = (u32)ctr;
+	*data = ctr;
+
+	return 0;
+}
+
+void kvm_pmu_cpuid_update(struct kvm_vcpu *vcpu)
+{
+	struct kvm_pmu *pmu = &vcpu->arch.pmu;
+	struct kvm_cpuid_entry2 *entry;
+	unsigned bitmap_len;
+
+	pmu->nr_arch_gp_counters = 0;
+	pmu->nr_arch_fixed_counters = 0;
+	pmu->counter_bitmask[KVM_PMC_GP] = 0;
+	pmu->counter_bitmask[KVM_PMC_FIXED] = 0;
+	pmu->version = 0;
+
+	entry = kvm_find_cpuid_entry(vcpu, 0xa, 0);
+	if (!entry)
+		return;
+
+	pmu->version = entry->eax & 0xff;
+	if (!pmu->version)
+		return;
+
+	pmu->nr_arch_gp_counters = min((int)(entry->eax >> 8) & 0xff,
+			X86_PMC_MAX_GENERIC);
+	pmu->counter_bitmask[KVM_PMC_GP] =
+		((u64)1 << ((entry->eax >> 16) & 0xff)) - 1;
+	bitmap_len = (entry->eax >> 24) & 0xff;
+	pmu->available_event_types = ~entry->ebx & ((1ull << bitmap_len) - 1);
+
+	if (pmu->version == 1) {
+		pmu->global_ctrl = (1 << pmu->nr_arch_gp_counters) - 1;
+		return;
+	}
+
+	pmu->nr_arch_fixed_counters = min((int)(entry->edx & 0x1f),
+			X86_PMC_MAX_FIXED);
+	pmu->counter_bitmask[KVM_PMC_FIXED] =
+		((u64)1 << ((entry->edx >> 5) & 0xff)) - 1;
+	pmu->global_ctrl_mask = ~(((1 << pmu->nr_arch_gp_counters) - 1)
+			| (((1ull << pmu->nr_arch_fixed_counters) - 1)
+				<< X86_PMC_IDX_FIXED));
+}
+
+void kvm_pmu_init(struct kvm_vcpu *vcpu)
+{
+	int i;
+	struct kvm_pmu *pmu = &vcpu->arch.pmu;
+
+	memset(pmu, 0, sizeof(*pmu));
+	for (i = 0; i < X86_PMC_MAX_GENERIC; i++) {
+		pmu->gp_counters[i].type = KVM_PMC_GP;
+		pmu->gp_counters[i].vcpu = vcpu;
+		pmu->gp_counters[i].idx = i;
+	}
+	for (i = 0; i < X86_PMC_MAX_FIXED; i++) {
+		pmu->fixed_counters[i].type = KVM_PMC_FIXED;
+		pmu->fixed_counters[i].vcpu = vcpu;
+		pmu->fixed_counters[i].idx = i + X86_PMC_IDX_FIXED;
+	}
+	init_irq_work(&pmu->irq_work, trigger_pmi);
+	kvm_pmu_cpuid_update(vcpu);
+}
+
+void kvm_pmu_reset(struct kvm_vcpu *vcpu)
+{
+	struct kvm_pmu *pmu = &vcpu->arch.pmu;
+	int i;
+
+	irq_work_sync(&pmu->irq_work);
+	for (i = 0; i < X86_PMC_MAX_GENERIC; i++) {
+		struct kvm_pmc *pmc = &pmu->gp_counters[i];
+		stop_counter(pmc);
+		pmc->counter = pmc->eventsel = 0;
+	}
+
+	for (i = 0; i < X86_PMC_MAX_FIXED; i++)
+		stop_counter(&pmu->fixed_counters[i]);
+
+	pmu->fixed_ctr_ctrl = pmu->global_ctrl = pmu->global_status =
+		pmu->global_ovf_ctrl = 0;
+}
+
+void kvm_pmu_destroy(struct kvm_vcpu *vcpu)
+{
+	kvm_pmu_reset(vcpu);
+}
+
+void kvm_handle_pmu_event(struct kvm_vcpu *vcpu)
+{
+	struct kvm_pmu *pmu = &vcpu->arch.pmu;
+	u64 bitmask;
+	int bit;
+
+	bitmask = pmu->reprogram_pmi;
+
+	for_each_set_bit(bit, (unsigned long *)&bitmask, X86_PMC_IDX_MAX) {
+		struct kvm_pmc *pmc = global_idx_to_pmc(pmu, bit);
+
+		if (unlikely(!pmc || !pmc->perf_event)) {
+			clear_bit(bit, (unsigned long *)&pmu->reprogram_pmi);
+			continue;
+		}
+
+		reprogram_idx(pmu, bit);
+	}
+}
diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index e32243eac2f4..5fa553babe56 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -1014,6 +1014,7 @@ static void init_vmcb(struct vcpu_svm *svm)
 	set_intercept(svm, INTERCEPT_NMI);
 	set_intercept(svm, INTERCEPT_SMI);
 	set_intercept(svm, INTERCEPT_SELECTIVE_CR0);
+	set_intercept(svm, INTERCEPT_RDPMC);
 	set_intercept(svm, INTERCEPT_CPUID);
 	set_intercept(svm, INTERCEPT_INVD);
 	set_intercept(svm, INTERCEPT_HLT);
@@ -2770,6 +2771,19 @@ static int emulate_on_interception(struct vcpu_svm *svm)
 	return emulate_instruction(&svm->vcpu, 0) == EMULATE_DONE;
 }
 
+static int rdpmc_interception(struct vcpu_svm *svm)
+{
+	int err;
+
+	if (!static_cpu_has(X86_FEATURE_NRIPS))
+		return emulate_on_interception(svm);
+
+	err = kvm_rdpmc(&svm->vcpu);
+	kvm_complete_insn_gp(&svm->vcpu, err);
+
+	return 1;
+}
+
 bool check_selective_cr0_intercepted(struct vcpu_svm *svm, unsigned long val)
 {
 	unsigned long cr0 = svm->vcpu.arch.cr0;
@@ -3190,6 +3204,7 @@ static int (*svm_exit_handlers[])(struct vcpu_svm *svm) = {
 	[SVM_EXIT_SMI]				= nop_on_interception,
 	[SVM_EXIT_INIT]				= nop_on_interception,
 	[SVM_EXIT_VINTR]			= interrupt_window_interception,
+	[SVM_EXIT_RDPMC]			= rdpmc_interception,
 	[SVM_EXIT_CPUID]			= cpuid_interception,
 	[SVM_EXIT_IRET]                         = iret_interception,
 	[SVM_EXIT_INVD]                         = emulate_on_interception,
diff --git a/arch/x86/kvm/timer.c b/arch/x86/kvm/timer.c
index ae432ea1cd83..6b85cc647f34 100644
--- a/arch/x86/kvm/timer.c
+++ b/arch/x86/kvm/timer.c
@@ -18,9 +18,10 @@
 #include <linux/atomic.h>
 #include "kvm_timer.h"
 
-static int __kvm_timer_fn(struct kvm_vcpu *vcpu, struct kvm_timer *ktimer)
+enum hrtimer_restart kvm_timer_fn(struct hrtimer *data)
 {
-	int restart_timer = 0;
+	struct kvm_timer *ktimer = container_of(data, struct kvm_timer, timer);
+	struct kvm_vcpu *vcpu = ktimer->vcpu;
 	wait_queue_head_t *q = &vcpu->wq;
 
 	/*
@@ -40,26 +41,7 @@ static int __kvm_timer_fn(struct kvm_vcpu *vcpu, struct kvm_timer *ktimer)
 
 	if (ktimer->t_ops->is_periodic(ktimer)) {
 		hrtimer_add_expires_ns(&ktimer->timer, ktimer->period);
-		restart_timer = 1;
-	}
-
-	return restart_timer;
-}
-
-enum hrtimer_restart kvm_timer_fn(struct hrtimer *data)
-{
-	int restart_timer;
-	struct kvm_vcpu *vcpu;
-	struct kvm_timer *ktimer = container_of(data, struct kvm_timer, timer);
-
-	vcpu = ktimer->vcpu;
-	if (!vcpu)
-		return HRTIMER_NORESTART;
-
-	restart_timer = __kvm_timer_fn(vcpu, ktimer);
-	if (restart_timer)
 		return HRTIMER_RESTART;
-	else
+	} else
 		return HRTIMER_NORESTART;
 }
-
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 579a0b51696a..906a7e84200f 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -18,6 +18,7 @@
 
 #include "irq.h"
 #include "mmu.h"
+#include "cpuid.h"
 
 #include <linux/kvm_host.h>
 #include <linux/module.h>
@@ -1747,7 +1748,6 @@ static void setup_msrs(struct vcpu_vmx *vmx)
 	int save_nmsrs, index;
 	unsigned long *msr_bitmap;
 
-	vmx_load_host_state(vmx);
 	save_nmsrs = 0;
 #ifdef CONFIG_X86_64
 	if (is_long_mode(&vmx->vcpu)) {
@@ -1956,6 +1956,7 @@ static __init void nested_vmx_setup_ctls_msrs(void)
 #endif
 		CPU_BASED_MOV_DR_EXITING | CPU_BASED_UNCOND_IO_EXITING |
 		CPU_BASED_USE_IO_BITMAPS | CPU_BASED_MONITOR_EXITING |
+		CPU_BASED_RDPMC_EXITING |
 		CPU_BASED_ACTIVATE_SECONDARY_CONTROLS;
 	/*
 	 * We can allow some features even when not supported by the
@@ -2142,12 +2143,10 @@ static int vmx_get_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 *pdata)
 			return 1;
 		/* Otherwise falls through */
 	default:
-		vmx_load_host_state(to_vmx(vcpu));
 		if (vmx_get_vmx_msr(vcpu, msr_index, pdata))
 			return 0;
 		msr = find_msr_entry(to_vmx(vcpu), msr_index);
 		if (msr) {
-			vmx_load_host_state(to_vmx(vcpu));
 			data = msr->data;
 			break;
 		}
@@ -2171,7 +2170,6 @@ static int vmx_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data)
 
 	switch (msr_index) {
 	case MSR_EFER:
-		vmx_load_host_state(vmx);
 		ret = kvm_set_msr_common(vcpu, msr_index, data);
 		break;
 #ifdef CONFIG_X86_64
@@ -2220,7 +2218,6 @@ static int vmx_set_msr(struct kvm_vcpu *vcpu, u32 msr_index, u64 data)
 			break;
 		msr = find_msr_entry(vmx, msr_index);
 		if (msr) {
-			vmx_load_host_state(vmx);
 			msr->data = data;
 			break;
 		}
@@ -2414,7 +2411,8 @@ static __init int setup_vmcs_config(struct vmcs_config *vmcs_conf)
 	      CPU_BASED_USE_TSC_OFFSETING |
 	      CPU_BASED_MWAIT_EXITING |
 	      CPU_BASED_MONITOR_EXITING |
-	      CPU_BASED_INVLPG_EXITING;
+	      CPU_BASED_INVLPG_EXITING |
+	      CPU_BASED_RDPMC_EXITING;
 
 	if (yield_on_hlt)
 		min |= CPU_BASED_HLT_EXITING;
@@ -2716,11 +2714,13 @@ static gva_t rmode_tss_base(struct kvm *kvm)
 {
 	if (!kvm->arch.tss_addr) {
 		struct kvm_memslots *slots;
+		struct kvm_memory_slot *slot;
 		gfn_t base_gfn;
 
 		slots = kvm_memslots(kvm);
-		base_gfn = slots->memslots[0].base_gfn +
-				 kvm->memslots->memslots[0].npages - 3;
+		slot = id_to_memslot(slots, 0);
+		base_gfn = slot->base_gfn + slot->npages - 3;
+
 		return base_gfn << PAGE_SHIFT;
 	}
 	return kvm->arch.tss_addr;
@@ -3945,12 +3945,15 @@ static bool nested_exit_on_intr(struct kvm_vcpu *vcpu)
 static void enable_irq_window(struct kvm_vcpu *vcpu)
 {
 	u32 cpu_based_vm_exec_control;
-	if (is_guest_mode(vcpu) && nested_exit_on_intr(vcpu))
-		/* We can get here when nested_run_pending caused
-		 * vmx_interrupt_allowed() to return false. In this case, do
-		 * nothing - the interrupt will be injected later.
+	if (is_guest_mode(vcpu) && nested_exit_on_intr(vcpu)) {
+		/*
+		 * We get here if vmx_interrupt_allowed() said we can't
+		 * inject to L1 now because L2 must run. Ask L2 to exit
+		 * right after entry, so we can inject to L1 more promptly.
 		 */
+		kvm_make_request(KVM_REQ_IMMEDIATE_EXIT, vcpu);
 		return;
+	}
 
 	cpu_based_vm_exec_control = vmcs_read32(CPU_BASED_VM_EXEC_CONTROL);
 	cpu_based_vm_exec_control |= CPU_BASED_VIRTUAL_INTR_PENDING;
@@ -4077,11 +4080,12 @@ static void vmx_set_nmi_mask(struct kvm_vcpu *vcpu, bool masked)
 static int vmx_interrupt_allowed(struct kvm_vcpu *vcpu)
 {
 	if (is_guest_mode(vcpu) && nested_exit_on_intr(vcpu)) {
-		struct vmcs12 *vmcs12;
-		if (to_vmx(vcpu)->nested.nested_run_pending)
+		struct vmcs12 *vmcs12 = get_vmcs12(vcpu);
+		if (to_vmx(vcpu)->nested.nested_run_pending ||
+		    (vmcs12->idt_vectoring_info_field &
+		     VECTORING_INFO_VALID_MASK))
 			return 0;
 		nested_vmx_vmexit(vcpu);
-		vmcs12 = get_vmcs12(vcpu);
 		vmcs12->vm_exit_reason = EXIT_REASON_EXTERNAL_INTERRUPT;
 		vmcs12->vm_exit_intr_info = 0;
 		/* fall through to normal code, but now in L1, not L2 */
@@ -4611,6 +4615,16 @@ static int handle_invlpg(struct kvm_vcpu *vcpu)
 	return 1;
 }
 
+static int handle_rdpmc(struct kvm_vcpu *vcpu)
+{
+	int err;
+
+	err = kvm_rdpmc(vcpu);
+	kvm_complete_insn_gp(vcpu, err);
+
+	return 1;
+}
+
 static int handle_wbinvd(struct kvm_vcpu *vcpu)
 {
 	skip_emulated_instruction(vcpu);
@@ -5561,6 +5575,7 @@ static int (*kvm_vmx_exit_handlers[])(struct kvm_vcpu *vcpu) = {
 	[EXIT_REASON_HLT]                     = handle_halt,
 	[EXIT_REASON_INVD]		      = handle_invd,
 	[EXIT_REASON_INVLPG]		      = handle_invlpg,
+	[EXIT_REASON_RDPMC]                   = handle_rdpmc,
 	[EXIT_REASON_VMCALL]                  = handle_vmcall,
 	[EXIT_REASON_VMCLEAR]	              = handle_vmclear,
 	[EXIT_REASON_VMLAUNCH]                = handle_vmlaunch,
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 4c938da2ba00..1171def5f96b 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -26,6 +26,7 @@
 #include "tss.h"
 #include "kvm_cache_regs.h"
 #include "x86.h"
+#include "cpuid.h"
 
 #include <linux/clocksource.h>
 #include <linux/interrupt.h>
@@ -82,8 +83,6 @@ static u64 __read_mostly efer_reserved_bits = ~((u64)EFER_SCE);
 #define VCPU_STAT(x) offsetof(struct kvm_vcpu, stat.x), KVM_STAT_VCPU
 
 static void update_cr8_intercept(struct kvm_vcpu *vcpu);
-static int kvm_dev_ioctl_get_supported_cpuid(struct kvm_cpuid2 *cpuid,
-				    struct kvm_cpuid_entry2 __user *entries);
 static void process_nmi(struct kvm_vcpu *vcpu);
 
 struct kvm_x86_ops *kvm_x86_ops;
@@ -574,54 +573,6 @@ int kvm_set_xcr(struct kvm_vcpu *vcpu, u32 index, u64 xcr)
 }
 EXPORT_SYMBOL_GPL(kvm_set_xcr);
 
-static bool guest_cpuid_has_xsave(struct kvm_vcpu *vcpu)
-{
-	struct kvm_cpuid_entry2 *best;
-
-	best = kvm_find_cpuid_entry(vcpu, 1, 0);
-	return best && (best->ecx & bit(X86_FEATURE_XSAVE));
-}
-
-static bool guest_cpuid_has_smep(struct kvm_vcpu *vcpu)
-{
-	struct kvm_cpuid_entry2 *best;
-
-	best = kvm_find_cpuid_entry(vcpu, 7, 0);
-	return best && (best->ebx & bit(X86_FEATURE_SMEP));
-}
-
-static bool guest_cpuid_has_fsgsbase(struct kvm_vcpu *vcpu)
-{
-	struct kvm_cpuid_entry2 *best;
-
-	best = kvm_find_cpuid_entry(vcpu, 7, 0);
-	return best && (best->ebx & bit(X86_FEATURE_FSGSBASE));
-}
-
-static void update_cpuid(struct kvm_vcpu *vcpu)
-{
-	struct kvm_cpuid_entry2 *best;
-	struct kvm_lapic *apic = vcpu->arch.apic;
-
-	best = kvm_find_cpuid_entry(vcpu, 1, 0);
-	if (!best)
-		return;
-
-	/* Update OSXSAVE bit */
-	if (cpu_has_xsave && best->function == 0x1) {
-		best->ecx &= ~(bit(X86_FEATURE_OSXSAVE));
-		if (kvm_read_cr4_bits(vcpu, X86_CR4_OSXSAVE))
-			best->ecx |= bit(X86_FEATURE_OSXSAVE);
-	}
-
-	if (apic) {
-		if (best->ecx & bit(X86_FEATURE_TSC_DEADLINE_TIMER))
-			apic->lapic_timer.timer_mode_mask = 3 << 17;
-		else
-			apic->lapic_timer.timer_mode_mask = 1 << 17;
-	}
-}
-
 int kvm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
 {
 	unsigned long old_cr4 = kvm_read_cr4(vcpu);
@@ -655,7 +606,7 @@ int kvm_set_cr4(struct kvm_vcpu *vcpu, unsigned long cr4)
 		kvm_mmu_reset_context(vcpu);
 
 	if ((cr4 ^ old_cr4) & X86_CR4_OSXSAVE)
-		update_cpuid(vcpu);
+		kvm_update_cpuid(vcpu);
 
 	return 0;
 }
@@ -809,6 +760,21 @@ int kvm_get_dr(struct kvm_vcpu *vcpu, int dr, unsigned long *val)
 }
 EXPORT_SYMBOL_GPL(kvm_get_dr);
 
+bool kvm_rdpmc(struct kvm_vcpu *vcpu)
+{
+	u32 ecx = kvm_register_read(vcpu, VCPU_REGS_RCX);
+	u64 data;
+	int err;
+
+	err = kvm_pmu_read_pmc(vcpu, ecx, &data);
+	if (err)
+		return err;
+	kvm_register_write(vcpu, VCPU_REGS_RAX, (u32)data);
+	kvm_register_write(vcpu, VCPU_REGS_RDX, data >> 32);
+	return err;
+}
+EXPORT_SYMBOL_GPL(kvm_rdpmc);
+
 /*
  * List of msr numbers which we expose to userspace through KVM_GET_MSRS
  * and KVM_SET_MSRS, and KVM_GET_MSR_INDEX_LIST.
@@ -1358,12 +1324,11 @@ static int xen_hvm_config(struct kvm_vcpu *vcpu, u64 data)
 	if (page_num >= blob_size)
 		goto out;
 	r = -ENOMEM;
-	page = kzalloc(PAGE_SIZE, GFP_KERNEL);
-	if (!page)
+	page = memdup_user(blob_addr + (page_num * PAGE_SIZE), PAGE_SIZE);
+	if (IS_ERR(page)) {
+		r = PTR_ERR(page);
 		goto out;
-	r = -EFAULT;
-	if (copy_from_user(page, blob_addr + (page_num * PAGE_SIZE), PAGE_SIZE))
-		goto out_free;
+	}
 	if (kvm_write_guest(kvm, page_addr, page, PAGE_SIZE))
 		goto out_free;
 	r = 0;
@@ -1652,8 +1617,6 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data)
 	 * which we perfectly emulate ;-). Any other value should be at least
 	 * reported, some guests depend on them.
 	 */
-	case MSR_P6_EVNTSEL0:
-	case MSR_P6_EVNTSEL1:
 	case MSR_K7_EVNTSEL0:
 	case MSR_K7_EVNTSEL1:
 	case MSR_K7_EVNTSEL2:
@@ -1665,8 +1628,6 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data)
 	/* at least RHEL 4 unconditionally writes to the perfctr registers,
 	 * so we ignore writes to make it happy.
 	 */
-	case MSR_P6_PERFCTR0:
-	case MSR_P6_PERFCTR1:
 	case MSR_K7_PERFCTR0:
 	case MSR_K7_PERFCTR1:
 	case MSR_K7_PERFCTR2:
@@ -1703,6 +1664,8 @@ int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data)
 	default:
 		if (msr && (msr == vcpu->kvm->arch.xen_hvm_config.msr))
 			return xen_hvm_config(vcpu, data);
+		if (kvm_pmu_msr(vcpu, msr))
+			return kvm_pmu_set_msr(vcpu, msr, data);
 		if (!ignore_msrs) {
 			pr_unimpl(vcpu, "unhandled wrmsr: 0x%x data %llx\n",
 				msr, data);
@@ -1865,10 +1828,6 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata)
 	case MSR_K8_SYSCFG:
 	case MSR_K7_HWCR:
 	case MSR_VM_HSAVE_PA:
-	case MSR_P6_PERFCTR0:
-	case MSR_P6_PERFCTR1:
-	case MSR_P6_EVNTSEL0:
-	case MSR_P6_EVNTSEL1:
 	case MSR_K7_EVNTSEL0:
 	case MSR_K7_PERFCTR0:
 	case MSR_K8_INT_PENDING_MSG:
@@ -1979,6 +1938,8 @@ int kvm_get_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 *pdata)
 		data = 0xbe702111;
 		break;
 	default:
+		if (kvm_pmu_msr(vcpu, msr))
+			return kvm_pmu_get_msr(vcpu, msr, pdata);
 		if (!ignore_msrs) {
 			pr_unimpl(vcpu, "unhandled rdmsr: 0x%x\n", msr);
 			return 1;
@@ -2037,15 +1998,12 @@ static int msr_io(struct kvm_vcpu *vcpu, struct kvm_msrs __user *user_msrs,
 	if (msrs.nmsrs >= MAX_IO_MSRS)
 		goto out;
 
-	r = -ENOMEM;
 	size = sizeof(struct kvm_msr_entry) * msrs.nmsrs;
-	entries = kmalloc(size, GFP_KERNEL);
-	if (!entries)
+	entries = memdup_user(user_msrs->entries, size);
+	if (IS_ERR(entries)) {
+		r = PTR_ERR(entries);
 		goto out;
-
-	r = -EFAULT;
-	if (copy_from_user(entries, user_msrs->entries, size))
-		goto out_free;
+	}
 
 	r = n = __msr_io(vcpu, &msrs, entries, do_msr);
 	if (r < 0)
@@ -2265,466 +2223,6 @@ void kvm_arch_vcpu_put(struct kvm_vcpu *vcpu)
 	vcpu->arch.last_guest_tsc = kvm_x86_ops->read_l1_tsc(vcpu);
 }
 
-static int is_efer_nx(void)
-{
-	unsigned long long efer = 0;
-
-	rdmsrl_safe(MSR_EFER, &efer);
-	return efer & EFER_NX;
-}
-
-static void cpuid_fix_nx_cap(struct kvm_vcpu *vcpu)
-{
-	int i;
-	struct kvm_cpuid_entry2 *e, *entry;
-
-	entry = NULL;
-	for (i = 0; i < vcpu->arch.cpuid_nent; ++i) {
-		e = &vcpu->arch.cpuid_entries[i];
-		if (e->function == 0x80000001) {
-			entry = e;
-			break;
-		}
-	}
-	if (entry && (entry->edx & (1 << 20)) && !is_efer_nx()) {
-		entry->edx &= ~(1 << 20);
-		printk(KERN_INFO "kvm: guest NX capability removed\n");
-	}
-}
-
-/* when an old userspace process fills a new kernel module */
-static int kvm_vcpu_ioctl_set_cpuid(struct kvm_vcpu *vcpu,
-				    struct kvm_cpuid *cpuid,
-				    struct kvm_cpuid_entry __user *entries)
-{
-	int r, i;
-	struct kvm_cpuid_entry *cpuid_entries;
-
-	r = -E2BIG;
-	if (cpuid->nent > KVM_MAX_CPUID_ENTRIES)
-		goto out;
-	r = -ENOMEM;
-	cpuid_entries = vmalloc(sizeof(struct kvm_cpuid_entry) * cpuid->nent);
-	if (!cpuid_entries)
-		goto out;
-	r = -EFAULT;
-	if (copy_from_user(cpuid_entries, entries,
-			   cpuid->nent * sizeof(struct kvm_cpuid_entry)))
-		goto out_free;
-	for (i = 0; i < cpuid->nent; i++) {
-		vcpu->arch.cpuid_entries[i].function = cpuid_entries[i].function;
-		vcpu->arch.cpuid_entries[i].eax = cpuid_entries[i].eax;
-		vcpu->arch.cpuid_entries[i].ebx = cpuid_entries[i].ebx;
-		vcpu->arch.cpuid_entries[i].ecx = cpuid_entries[i].ecx;
-		vcpu->arch.cpuid_entries[i].edx = cpuid_entries[i].edx;
-		vcpu->arch.cpuid_entries[i].index = 0;
-		vcpu->arch.cpuid_entries[i].flags = 0;
-		vcpu->arch.cpuid_entries[i].padding[0] = 0;
-		vcpu->arch.cpuid_entries[i].padding[1] = 0;
-		vcpu->arch.cpuid_entries[i].padding[2] = 0;
-	}
-	vcpu->arch.cpuid_nent = cpuid->nent;
-	cpuid_fix_nx_cap(vcpu);
-	r = 0;
-	kvm_apic_set_version(vcpu);
-	kvm_x86_ops->cpuid_update(vcpu);
-	update_cpuid(vcpu);
-
-out_free:
-	vfree(cpuid_entries);
-out:
-	return r;
-}
-
-static int kvm_vcpu_ioctl_set_cpuid2(struct kvm_vcpu *vcpu,
-				     struct kvm_cpuid2 *cpuid,
-				     struct kvm_cpuid_entry2 __user *entries)
-{
-	int r;
-
-	r = -E2BIG;
-	if (cpuid->nent > KVM_MAX_CPUID_ENTRIES)
-		goto out;
-	r = -EFAULT;
-	if (copy_from_user(&vcpu->arch.cpuid_entries, entries,
-			   cpuid->nent * sizeof(struct kvm_cpuid_entry2)))
-		goto out;
-	vcpu->arch.cpuid_nent = cpuid->nent;
-	kvm_apic_set_version(vcpu);
-	kvm_x86_ops->cpuid_update(vcpu);
-	update_cpuid(vcpu);
-	return 0;
-
-out:
-	return r;
-}
-
-static int kvm_vcpu_ioctl_get_cpuid2(struct kvm_vcpu *vcpu,
-				     struct kvm_cpuid2 *cpuid,
-				     struct kvm_cpuid_entry2 __user *entries)
-{
-	int r;
-
-	r = -E2BIG;
-	if (cpuid->nent < vcpu->arch.cpuid_nent)
-		goto out;
-	r = -EFAULT;
-	if (copy_to_user(entries, &vcpu->arch.cpuid_entries,
-			 vcpu->arch.cpuid_nent * sizeof(struct kvm_cpuid_entry2)))
-		goto out;
-	return 0;
-
-out:
-	cpuid->nent = vcpu->arch.cpuid_nent;
-	return r;
-}
-
-static void cpuid_mask(u32 *word, int wordnum)
-{
-	*word &= boot_cpu_data.x86_capability[wordnum];
-}
-
-static void do_cpuid_1_ent(struct kvm_cpuid_entry2 *entry, u32 function,
-			   u32 index)
-{
-	entry->function = function;
-	entry->index = index;
-	cpuid_count(entry->function, entry->index,
-		    &entry->eax, &entry->ebx, &entry->ecx, &entry->edx);
-	entry->flags = 0;
-}
-
-static bool supported_xcr0_bit(unsigned bit)
-{
-	u64 mask = ((u64)1 << bit);
-
-	return mask & (XSTATE_FP | XSTATE_SSE | XSTATE_YMM) & host_xcr0;
-}
-
-#define F(x) bit(X86_FEATURE_##x)
-
-static void do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function,
-			 u32 index, int *nent, int maxnent)
-{
-	unsigned f_nx = is_efer_nx() ? F(NX) : 0;
-#ifdef CONFIG_X86_64
-	unsigned f_gbpages = (kvm_x86_ops->get_lpage_level() == PT_PDPE_LEVEL)
-				? F(GBPAGES) : 0;
-	unsigned f_lm = F(LM);
-#else
-	unsigned f_gbpages = 0;
-	unsigned f_lm = 0;
-#endif
-	unsigned f_rdtscp = kvm_x86_ops->rdtscp_supported() ? F(RDTSCP) : 0;
-
-	/* cpuid 1.edx */
-	const u32 kvm_supported_word0_x86_features =
-		F(FPU) | F(VME) | F(DE) | F(PSE) |
-		F(TSC) | F(MSR) | F(PAE) | F(MCE) |
-		F(CX8) | F(APIC) | 0 /* Reserved */ | F(SEP) |
-		F(MTRR) | F(PGE) | F(MCA) | F(CMOV) |
-		F(PAT) | F(PSE36) | 0 /* PSN */ | F(CLFLSH) |
-		0 /* Reserved, DS, ACPI */ | F(MMX) |
-		F(FXSR) | F(XMM) | F(XMM2) | F(SELFSNOOP) |
-		0 /* HTT, TM, Reserved, PBE */;
-	/* cpuid 0x80000001.edx */
-	const u32 kvm_supported_word1_x86_features =
-		F(FPU) | F(VME) | F(DE) | F(PSE) |
-		F(TSC) | F(MSR) | F(PAE) | F(MCE) |
-		F(CX8) | F(APIC) | 0 /* Reserved */ | F(SYSCALL) |
-		F(MTRR) | F(PGE) | F(MCA) | F(CMOV) |
-		F(PAT) | F(PSE36) | 0 /* Reserved */ |
-		f_nx | 0 /* Reserved */ | F(MMXEXT) | F(MMX) |
-		F(FXSR) | F(FXSR_OPT) | f_gbpages | f_rdtscp |
-		0 /* Reserved */ | f_lm | F(3DNOWEXT) | F(3DNOW);
-	/* cpuid 1.ecx */
-	const u32 kvm_supported_word4_x86_features =
-		F(XMM3) | F(PCLMULQDQ) | 0 /* DTES64, MONITOR */ |
-		0 /* DS-CPL, VMX, SMX, EST */ |
-		0 /* TM2 */ | F(SSSE3) | 0 /* CNXT-ID */ | 0 /* Reserved */ |
-		0 /* Reserved */ | F(CX16) | 0 /* xTPR Update, PDCM */ |
-		0 /* Reserved, DCA */ | F(XMM4_1) |
-		F(XMM4_2) | F(X2APIC) | F(MOVBE) | F(POPCNT) |
-		0 /* Reserved*/ | F(AES) | F(XSAVE) | 0 /* OSXSAVE */ | F(AVX) |
-		F(F16C) | F(RDRAND);
-	/* cpuid 0x80000001.ecx */
-	const u32 kvm_supported_word6_x86_features =
-		F(LAHF_LM) | F(CMP_LEGACY) | 0 /*SVM*/ | 0 /* ExtApicSpace */ |
-		F(CR8_LEGACY) | F(ABM) | F(SSE4A) | F(MISALIGNSSE) |
-		F(3DNOWPREFETCH) | 0 /* OSVW */ | 0 /* IBS */ | F(XOP) |
-		0 /* SKINIT, WDT, LWP */ | F(FMA4) | F(TBM);
-
-	/* cpuid 0xC0000001.edx */
-	const u32 kvm_supported_word5_x86_features =
-		F(XSTORE) | F(XSTORE_EN) | F(XCRYPT) | F(XCRYPT_EN) |
-		F(ACE2) | F(ACE2_EN) | F(PHE) | F(PHE_EN) |
-		F(PMM) | F(PMM_EN);
-
-	/* cpuid 7.0.ebx */
-	const u32 kvm_supported_word9_x86_features =
-		F(SMEP) | F(FSGSBASE) | F(ERMS);
-
-	/* all calls to cpuid_count() should be made on the same cpu */
-	get_cpu();
-	do_cpuid_1_ent(entry, function, index);
-	++*nent;
-
-	switch (function) {
-	case 0:
-		entry->eax = min(entry->eax, (u32)0xd);
-		break;
-	case 1:
-		entry->edx &= kvm_supported_word0_x86_features;
-		cpuid_mask(&entry->edx, 0);
-		entry->ecx &= kvm_supported_word4_x86_features;
-		cpuid_mask(&entry->ecx, 4);
-		/* we support x2apic emulation even if host does not support
-		 * it since we emulate x2apic in software */
-		entry->ecx |= F(X2APIC);
-		break;
-	/* function 2 entries are STATEFUL. That is, repeated cpuid commands
-	 * may return different values. This forces us to get_cpu() before
-	 * issuing the first command, and also to emulate this annoying behavior
-	 * in kvm_emulate_cpuid() using KVM_CPUID_FLAG_STATE_READ_NEXT */
-	case 2: {
-		int t, times = entry->eax & 0xff;
-
-		entry->flags |= KVM_CPUID_FLAG_STATEFUL_FUNC;
-		entry->flags |= KVM_CPUID_FLAG_STATE_READ_NEXT;
-		for (t = 1; t < times && *nent < maxnent; ++t) {
-			do_cpuid_1_ent(&entry[t], function, 0);
-			entry[t].flags |= KVM_CPUID_FLAG_STATEFUL_FUNC;
-			++*nent;
-		}
-		break;
-	}
-	/* function 4 has additional index. */
-	case 4: {
-		int i, cache_type;
-
-		entry->flags |= KVM_CPUID_FLAG_SIGNIFCANT_INDEX;
-		/* read more entries until cache_type is zero */
-		for (i = 1; *nent < maxnent; ++i) {
-			cache_type = entry[i - 1].eax & 0x1f;
-			if (!cache_type)
-				break;
-			do_cpuid_1_ent(&entry[i], function, i);
-			entry[i].flags |=
-			       KVM_CPUID_FLAG_SIGNIFCANT_INDEX;
-			++*nent;
-		}
-		break;
-	}
-	case 7: {
-		entry->flags |= KVM_CPUID_FLAG_SIGNIFCANT_INDEX;
-		/* Mask ebx against host capbability word 9 */
-		if (index == 0) {
-			entry->ebx &= kvm_supported_word9_x86_features;
-			cpuid_mask(&entry->ebx, 9);
-		} else
-			entry->ebx = 0;
-		entry->eax = 0;
-		entry->ecx = 0;
-		entry->edx = 0;
-		break;
-	}
-	case 9:
-		break;
-	/* function 0xb has additional index. */
-	case 0xb: {
-		int i, level_type;
-
-		entry->flags |= KVM_CPUID_FLAG_SIGNIFCANT_INDEX;
-		/* read more entries until level_type is zero */
-		for (i = 1; *nent < maxnent; ++i) {
-			level_type = entry[i - 1].ecx & 0xff00;
-			if (!level_type)
-				break;
-			do_cpuid_1_ent(&entry[i], function, i);
-			entry[i].flags |=
-			       KVM_CPUID_FLAG_SIGNIFCANT_INDEX;
-			++*nent;
-		}
-		break;
-	}
-	case 0xd: {
-		int idx, i;
-
-		entry->flags |= KVM_CPUID_FLAG_SIGNIFCANT_INDEX;
-		for (idx = 1, i = 1; *nent < maxnent && idx < 64; ++idx) {
-			do_cpuid_1_ent(&entry[i], function, idx);
-			if (entry[i].eax == 0 || !supported_xcr0_bit(idx))
-				continue;
-			entry[i].flags |=
-			       KVM_CPUID_FLAG_SIGNIFCANT_INDEX;
-			++*nent;
-			++i;
-		}
-		break;
-	}
-	case KVM_CPUID_SIGNATURE: {
-		char signature[12] = "KVMKVMKVM\0\0";
-		u32 *sigptr = (u32 *)signature;
-		entry->eax = 0;
-		entry->ebx = sigptr[0];
-		entry->ecx = sigptr[1];
-		entry->edx = sigptr[2];
-		break;
-	}
-	case KVM_CPUID_FEATURES:
-		entry->eax = (1 << KVM_FEATURE_CLOCKSOURCE) |
-			     (1 << KVM_FEATURE_NOP_IO_DELAY) |
-			     (1 << KVM_FEATURE_CLOCKSOURCE2) |
-			     (1 << KVM_FEATURE_ASYNC_PF) |
-			     (1 << KVM_FEATURE_CLOCKSOURCE_STABLE_BIT);
-
-		if (sched_info_on())
-			entry->eax |= (1 << KVM_FEATURE_STEAL_TIME);
-
-		entry->ebx = 0;
-		entry->ecx = 0;
-		entry->edx = 0;
-		break;
-	case 0x80000000:
-		entry->eax = min(entry->eax, 0x8000001a);
-		break;
-	case 0x80000001:
-		entry->edx &= kvm_supported_word1_x86_features;
-		cpuid_mask(&entry->edx, 1);
-		entry->ecx &= kvm_supported_word6_x86_features;
-		cpuid_mask(&entry->ecx, 6);
-		break;
-	case 0x80000008: {
-		unsigned g_phys_as = (entry->eax >> 16) & 0xff;
-		unsigned virt_as = max((entry->eax >> 8) & 0xff, 48U);
-		unsigned phys_as = entry->eax & 0xff;
-
-		if (!g_phys_as)
-			g_phys_as = phys_as;
-		entry->eax = g_phys_as | (virt_as << 8);
-		entry->ebx = entry->edx = 0;
-		break;
-	}
-	case 0x80000019:
-		entry->ecx = entry->edx = 0;
-		break;
-	case 0x8000001a:
-		break;
-	case 0x8000001d:
-		break;
-	/*Add support for Centaur's CPUID instruction*/
-	case 0xC0000000:
-		/*Just support up to 0xC0000004 now*/
-		entry->eax = min(entry->eax, 0xC0000004);
-		break;
-	case 0xC0000001:
-		entry->edx &= kvm_supported_word5_x86_features;
-		cpuid_mask(&entry->edx, 5);
-		break;
-	case 3: /* Processor serial number */
-	case 5: /* MONITOR/MWAIT */
-	case 6: /* Thermal management */
-	case 0xA: /* Architectural Performance Monitoring */
-	case 0x80000007: /* Advanced power management */
-	case 0xC0000002:
-	case 0xC0000003:
-	case 0xC0000004:
-	default:
-		entry->eax = entry->ebx = entry->ecx = entry->edx = 0;
-		break;
-	}
-
-	kvm_x86_ops->set_supported_cpuid(function, entry);
-
-	put_cpu();
-}
-
-#undef F
-
-static int kvm_dev_ioctl_get_supported_cpuid(struct kvm_cpuid2 *cpuid,
-				     struct kvm_cpuid_entry2 __user *entries)
-{
-	struct kvm_cpuid_entry2 *cpuid_entries;
-	int limit, nent = 0, r = -E2BIG;
-	u32 func;
-
-	if (cpuid->nent < 1)
-		goto out;
-	if (cpuid->nent > KVM_MAX_CPUID_ENTRIES)
-		cpuid->nent = KVM_MAX_CPUID_ENTRIES;
-	r = -ENOMEM;
-	cpuid_entries = vmalloc(sizeof(struct kvm_cpuid_entry2) * cpuid->nent);
-	if (!cpuid_entries)
-		goto out;
-
-	do_cpuid_ent(&cpuid_entries[0], 0, 0, &nent, cpuid->nent);
-	limit = cpuid_entries[0].eax;
-	for (func = 1; func <= limit && nent < cpuid->nent; ++func)
-		do_cpuid_ent(&cpuid_entries[nent], func, 0,
-			     &nent, cpuid->nent);
-	r = -E2BIG;
-	if (nent >= cpuid->nent)
-		goto out_free;
-
-	do_cpuid_ent(&cpuid_entries[nent], 0x80000000, 0, &nent, cpuid->nent);
-	limit = cpuid_entries[nent - 1].eax;
-	for (func = 0x80000001; func <= limit && nent < cpuid->nent; ++func)
-		do_cpuid_ent(&cpuid_entries[nent], func, 0,
-			     &nent, cpuid->nent);
-
-
-
-	r = -E2BIG;
-	if (nent >= cpuid->nent)
-		goto out_free;
-
-	/* Add support for Centaur's CPUID instruction. */
-	if (boot_cpu_data.x86_vendor == X86_VENDOR_CENTAUR) {
-		do_cpuid_ent(&cpuid_entries[nent], 0xC0000000, 0,
-				&nent, cpuid->nent);
-
-		r = -E2BIG;
-		if (nent >= cpuid->nent)
-			goto out_free;
-
-		limit = cpuid_entries[nent - 1].eax;
-		for (func = 0xC0000001;
-			func <= limit && nent < cpuid->nent; ++func)
-			do_cpuid_ent(&cpuid_entries[nent], func, 0,
-					&nent, cpuid->nent);
-
-		r = -E2BIG;
-		if (nent >= cpuid->nent)
-			goto out_free;
-	}
-
-	do_cpuid_ent(&cpuid_entries[nent], KVM_CPUID_SIGNATURE, 0, &nent,
-		     cpuid->nent);
-
-	r = -E2BIG;
-	if (nent >= cpuid->nent)
-		goto out_free;
-
-	do_cpuid_ent(&cpuid_entries[nent], KVM_CPUID_FEATURES, 0, &nent,
-		     cpuid->nent);
-
-	r = -E2BIG;
-	if (nent >= cpuid->nent)
-		goto out_free;
-
-	r = -EFAULT;
-	if (copy_to_user(entries, cpuid_entries,
-			 nent * sizeof(struct kvm_cpuid_entry2)))
-		goto out_free;
-	cpuid->nent = nent;
-	r = 0;
-
-out_free:
-	vfree(cpuid_entries);
-out:
-	return r;
-}
-
 static int kvm_vcpu_ioctl_get_lapic(struct kvm_vcpu *vcpu,
 				    struct kvm_lapic_state *s)
 {
@@ -3042,13 +2540,12 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
 		r = -EINVAL;
 		if (!vcpu->arch.apic)
 			goto out;
-		u.lapic = kmalloc(sizeof(struct kvm_lapic_state), GFP_KERNEL);
-		r = -ENOMEM;
-		if (!u.lapic)
-			goto out;
-		r = -EFAULT;
-		if (copy_from_user(u.lapic, argp, sizeof(struct kvm_lapic_state)))
+		u.lapic = memdup_user(argp, sizeof(*u.lapic));
+		if (IS_ERR(u.lapic)) {
+			r = PTR_ERR(u.lapic);
 			goto out;
+		}
+
 		r = kvm_vcpu_ioctl_set_lapic(vcpu, u.lapic);
 		if (r)
 			goto out;
@@ -3227,14 +2724,11 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
 		break;
 	}
 	case KVM_SET_XSAVE: {
-		u.xsave = kzalloc(sizeof(struct kvm_xsave), GFP_KERNEL);
-		r = -ENOMEM;
-		if (!u.xsave)
-			break;
-
-		r = -EFAULT;
-		if (copy_from_user(u.xsave, argp, sizeof(struct kvm_xsave)))
-			break;
+		u.xsave = memdup_user(argp, sizeof(*u.xsave));
+		if (IS_ERR(u.xsave)) {
+			r = PTR_ERR(u.xsave);
+			goto out;
+		}
 
 		r = kvm_vcpu_ioctl_x86_set_xsave(vcpu, u.xsave);
 		break;
@@ -3255,15 +2749,11 @@ long kvm_arch_vcpu_ioctl(struct file *filp,
 		break;
 	}
 	case KVM_SET_XCRS: {
-		u.xcrs = kzalloc(sizeof(struct kvm_xcrs), GFP_KERNEL);
-		r = -ENOMEM;
-		if (!u.xcrs)
-			break;
-
-		r = -EFAULT;
-		if (copy_from_user(u.xcrs, argp,
-				   sizeof(struct kvm_xcrs)))
-			break;
+		u.xcrs = memdup_user(argp, sizeof(*u.xcrs));
+		if (IS_ERR(u.xcrs)) {
+			r = PTR_ERR(u.xcrs);
+			goto out;
+		}
 
 		r = kvm_vcpu_ioctl_x86_set_xcrs(vcpu, u.xcrs);
 		break;
@@ -3460,16 +2950,59 @@ static int kvm_vm_ioctl_reinject(struct kvm *kvm,
 	return 0;
 }
 
+/**
+ * write_protect_slot - write protect a slot for dirty logging
+ * @kvm: the kvm instance
+ * @memslot: the slot we protect
+ * @dirty_bitmap: the bitmap indicating which pages are dirty
+ * @nr_dirty_pages: the number of dirty pages
+ *
+ * We have two ways to find all sptes to protect:
+ * 1. Use kvm_mmu_slot_remove_write_access() which walks all shadow pages and
+ *    checks ones that have a spte mapping a page in the slot.
+ * 2. Use kvm_mmu_rmap_write_protect() for each gfn found in the bitmap.
+ *
+ * Generally speaking, if there are not so many dirty pages compared to the
+ * number of shadow pages, we should use the latter.
+ *
+ * Note that letting others write into a page marked dirty in the old bitmap
+ * by using the remaining tlb entry is not a problem.  That page will become
+ * write protected again when we flush the tlb and then be reported dirty to
+ * the user space by copying the old bitmap.
+ */
+static void write_protect_slot(struct kvm *kvm,
+			       struct kvm_memory_slot *memslot,
+			       unsigned long *dirty_bitmap,
+			       unsigned long nr_dirty_pages)
+{
+	/* Not many dirty pages compared to # of shadow pages. */
+	if (nr_dirty_pages < kvm->arch.n_used_mmu_pages) {
+		unsigned long gfn_offset;
+
+		for_each_set_bit(gfn_offset, dirty_bitmap, memslot->npages) {
+			unsigned long gfn = memslot->base_gfn + gfn_offset;
+
+			spin_lock(&kvm->mmu_lock);
+			kvm_mmu_rmap_write_protect(kvm, gfn, memslot);
+			spin_unlock(&kvm->mmu_lock);
+		}
+		kvm_flush_remote_tlbs(kvm);
+	} else {
+		spin_lock(&kvm->mmu_lock);
+		kvm_mmu_slot_remove_write_access(kvm, memslot->id);
+		spin_unlock(&kvm->mmu_lock);
+	}
+}
+
 /*
  * Get (and clear) the dirty memory log for a memory slot.
  */
 int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
 				      struct kvm_dirty_log *log)
 {
-	int r, i;
+	int r;
 	struct kvm_memory_slot *memslot;
-	unsigned long n;
-	unsigned long is_dirty = 0;
+	unsigned long n, nr_dirty_pages;
 
 	mutex_lock(&kvm->slots_lock);
 
@@ -3477,43 +3010,41 @@ int kvm_vm_ioctl_get_dirty_log(struct kvm *kvm,
 	if (log->slot >= KVM_MEMORY_SLOTS)
 		goto out;
 
-	memslot = &kvm->memslots->memslots[log->slot];
+	memslot = id_to_memslot(kvm->memslots, log->slot);
 	r = -ENOENT;
 	if (!memslot->dirty_bitmap)
 		goto out;
 
 	n = kvm_dirty_bitmap_bytes(memslot);
-
-	for (i = 0; !is_dirty && i < n/sizeof(long); i++)
-		is_dirty = memslot->dirty_bitmap[i];
+	nr_dirty_pages = memslot->nr_dirty_pages;
 
 	/* If nothing is dirty, don't bother messing with page tables. */
-	if (is_dirty) {
+	if (nr_dirty_pages) {
 		struct kvm_memslots *slots, *old_slots;
-		unsigned long *dirty_bitmap;
+		unsigned long *dirty_bitmap, *dirty_bitmap_head;
 
-		dirty_bitmap = memslot->dirty_bitmap_head;
-		if (memslot->dirty_bitmap == dirty_bitmap)
-			dirty_bitmap += n / sizeof(long);
-		memset(dirty_bitmap, 0, n);
+		dirty_bitmap = memslot->dirty_bitmap;
+		dirty_bitmap_head = memslot->dirty_bitmap_head;
+		if (dirty_bitmap == dirty_bitmap_head)
+			dirty_bitmap_head += n / sizeof(long);
+		memset(dirty_bitmap_head, 0, n);
 
 		r = -ENOMEM;
-		slots = kzalloc(sizeof(struct kvm_memslots), GFP_KERNEL);
+		slots = kmemdup(kvm->memslots, sizeof(*kvm->memslots), GFP_KERNEL);
 		if (!slots)
 			goto out;
-		memcpy(slots, kvm->memslots, sizeof(struct kvm_memslots));
-		slots->memslots[log->slot].dirty_bitmap = dirty_bitmap;
-		slots->generation++;
+
+		memslot = id_to_memslot(slots, log->slot);
+		memslot->nr_dirty_pages = 0;
+		memslot->dirty_bitmap = dirty_bitmap_head;
+		update_memslots(slots, NULL);
 
 		old_slots = kvm->memslots;
 		rcu_assign_pointer(kvm->memslots, slots);
 		synchronize_srcu_expedited(&kvm->srcu);
-		dirty_bitmap = old_slots->memslots[log->slot].dirty_bitmap;
 		kfree(old_slots);
 
-		spin_lock(&kvm->mmu_lock);
-		kvm_mmu_slot_remove_write_access(kvm, log->slot);
-		spin_unlock(&kvm->mmu_lock);
+		write_protect_slot(kvm, memslot, dirty_bitmap, nr_dirty_pages);
 
 		r = -EFAULT;
 		if (copy_to_user(log->dirty_bitmap, dirty_bitmap, n))
@@ -3658,14 +3189,14 @@ long kvm_arch_vm_ioctl(struct file *filp,
 	}
 	case KVM_GET_IRQCHIP: {
 		/* 0: PIC master, 1: PIC slave, 2: IOAPIC */
-		struct kvm_irqchip *chip = kmalloc(sizeof(*chip), GFP_KERNEL);
+		struct kvm_irqchip *chip;
 
-		r = -ENOMEM;
-		if (!chip)
+		chip = memdup_user(argp, sizeof(*chip));
+		if (IS_ERR(chip)) {
+			r = PTR_ERR(chip);
 			goto out;
-		r = -EFAULT;
-		if (copy_from_user(chip, argp, sizeof *chip))
-			goto get_irqchip_out;
+		}
+
 		r = -ENXIO;
 		if (!irqchip_in_kernel(kvm))
 			goto get_irqchip_out;
@@ -3684,14 +3215,14 @@ long kvm_arch_vm_ioctl(struct file *filp,
 	}
 	case KVM_SET_IRQCHIP: {
 		/* 0: PIC master, 1: PIC slave, 2: IOAPIC */
-		struct kvm_irqchip *chip = kmalloc(sizeof(*chip), GFP_KERNEL);
+		struct kvm_irqchip *chip;
 
-		r = -ENOMEM;
-		if (!chip)
+		chip = memdup_user(argp, sizeof(*chip));
+		if (IS_ERR(chip)) {
+			r = PTR_ERR(chip);
 			goto out;
-		r = -EFAULT;
-		if (copy_from_user(chip, argp, sizeof *chip))
-			goto set_irqchip_out;
+		}
+
 		r = -ENXIO;
 		if (!irqchip_in_kernel(kvm))
 			goto set_irqchip_out;
@@ -3898,12 +3429,7 @@ void kvm_get_segment(struct kvm_vcpu *vcpu,
 	kvm_x86_ops->get_segment(vcpu, var, seg);
 }
 
-static gpa_t translate_gpa(struct kvm_vcpu *vcpu, gpa_t gpa, u32 access)
-{
-	return gpa;
-}
-
-static gpa_t translate_nested_gpa(struct kvm_vcpu *vcpu, gpa_t gpa, u32 access)
+gpa_t translate_nested_gpa(struct kvm_vcpu *vcpu, gpa_t gpa, u32 access)
 {
 	gpa_t t_gpa;
 	struct x86_exception exception;
@@ -4087,7 +3613,7 @@ int emulator_write_phys(struct kvm_vcpu *vcpu, gpa_t gpa,
 	ret = kvm_write_guest(vcpu->kvm, gpa, val, bytes);
 	if (ret < 0)
 		return 0;
-	kvm_mmu_pte_write(vcpu, gpa, val, bytes, 1);
+	kvm_mmu_pte_write(vcpu, gpa, val, bytes);
 	return 1;
 }
 
@@ -4324,7 +3850,7 @@ static int emulator_cmpxchg_emulated(struct x86_emulate_ctxt *ctxt,
 	if (!exchanged)
 		return X86EMUL_CMPXCHG_FAILED;
 
-	kvm_mmu_pte_write(vcpu, gpa, new, bytes, 1);
+	kvm_mmu_pte_write(vcpu, gpa, new, bytes);
 
 	return X86EMUL_CONTINUE;
 
@@ -4349,32 +3875,24 @@ static int kernel_pio(struct kvm_vcpu *vcpu, void *pd)
 	return r;
 }
 
-
-static int emulator_pio_in_emulated(struct x86_emulate_ctxt *ctxt,
-				    int size, unsigned short port, void *val,
-				    unsigned int count)
+static int emulator_pio_in_out(struct kvm_vcpu *vcpu, int size,
+			       unsigned short port, void *val,
+			       unsigned int count, bool in)
 {
-	struct kvm_vcpu *vcpu = emul_to_vcpu(ctxt);
-
-	if (vcpu->arch.pio.count)
-		goto data_avail;
-
-	trace_kvm_pio(0, port, size, count);
+	trace_kvm_pio(!in, port, size, count);
 
 	vcpu->arch.pio.port = port;
-	vcpu->arch.pio.in = 1;
+	vcpu->arch.pio.in = in;
 	vcpu->arch.pio.count  = count;
 	vcpu->arch.pio.size = size;
 
 	if (!kernel_pio(vcpu, vcpu->arch.pio_data)) {
-	data_avail:
-		memcpy(val, vcpu->arch.pio_data, size * count);
 		vcpu->arch.pio.count = 0;
 		return 1;
 	}
 
 	vcpu->run->exit_reason = KVM_EXIT_IO;
-	vcpu->run->io.direction = KVM_EXIT_IO_IN;
+	vcpu->run->io.direction = in ? KVM_EXIT_IO_IN : KVM_EXIT_IO_OUT;
 	vcpu->run->io.size = size;
 	vcpu->run->io.data_offset = KVM_PIO_PAGE_OFFSET * PAGE_SIZE;
 	vcpu->run->io.count = count;
@@ -4383,36 +3901,37 @@ static int emulator_pio_in_emulated(struct x86_emulate_ctxt *ctxt,
 	return 0;
 }
 
-static int emulator_pio_out_emulated(struct x86_emulate_ctxt *ctxt,
-				     int size, unsigned short port,
-				     const void *val, unsigned int count)
+static int emulator_pio_in_emulated(struct x86_emulate_ctxt *ctxt,
+				    int size, unsigned short port, void *val,
+				    unsigned int count)
 {
 	struct kvm_vcpu *vcpu = emul_to_vcpu(ctxt);
+	int ret;
 
-	trace_kvm_pio(1, port, size, count);
-
-	vcpu->arch.pio.port = port;
-	vcpu->arch.pio.in = 0;
-	vcpu->arch.pio.count = count;
-	vcpu->arch.pio.size = size;
-
-	memcpy(vcpu->arch.pio_data, val, size * count);
+	if (vcpu->arch.pio.count)
+		goto data_avail;
 
-	if (!kernel_pio(vcpu, vcpu->arch.pio_data)) {
+	ret = emulator_pio_in_out(vcpu, size, port, val, count, true);
+	if (ret) {
+data_avail:
+		memcpy(val, vcpu->arch.pio_data, size * count);
 		vcpu->arch.pio.count = 0;
 		return 1;
 	}
 
-	vcpu->run->exit_reason = KVM_EXIT_IO;
-	vcpu->run->io.direction = KVM_EXIT_IO_OUT;
-	vcpu->run->io.size = size;
-	vcpu->run->io.data_offset = KVM_PIO_PAGE_OFFSET * PAGE_SIZE;
-	vcpu->run->io.count = count;
-	vcpu->run->io.port = port;
-
 	return 0;
 }
 
+static int emulator_pio_out_emulated(struct x86_emulate_ctxt *ctxt,
+				     int size, unsigned short port,
+				     const void *val, unsigned int count)
+{
+	struct kvm_vcpu *vcpu = emul_to_vcpu(ctxt);
+
+	memcpy(vcpu->arch.pio_data, val, size * count);
+	return emulator_pio_in_out(vcpu, size, port, (void *)val, count, false);
+}
+
 static unsigned long get_segment_base(struct kvm_vcpu *vcpu, int seg)
 {
 	return kvm_x86_ops->get_segment_base(vcpu, seg);
@@ -4627,6 +4146,12 @@ static int emulator_set_msr(struct x86_emulate_ctxt *ctxt,
 	return kvm_set_msr(emul_to_vcpu(ctxt), msr_index, data);
 }
 
+static int emulator_read_pmc(struct x86_emulate_ctxt *ctxt,
+			     u32 pmc, u64 *pdata)
+{
+	return kvm_pmu_read_pmc(emul_to_vcpu(ctxt), pmc, pdata);
+}
+
 static void emulator_halt(struct x86_emulate_ctxt *ctxt)
 {
 	emul_to_vcpu(ctxt)->arch.halt_request = 1;
@@ -4679,6 +4204,7 @@ static struct x86_emulate_ops emulate_ops = {
 	.set_dr              = emulator_set_dr,
 	.set_msr             = emulator_set_msr,
 	.get_msr             = emulator_get_msr,
+	.read_pmc            = emulator_read_pmc,
 	.halt                = emulator_halt,
 	.wbinvd              = emulator_wbinvd,
 	.fix_hypercall       = emulator_fix_hypercall,
@@ -4836,6 +4362,50 @@ static bool reexecute_instruction(struct kvm_vcpu *vcpu, gva_t gva)
 	return false;
 }
 
+static bool retry_instruction(struct x86_emulate_ctxt *ctxt,
+			      unsigned long cr2,  int emulation_type)
+{
+	struct kvm_vcpu *vcpu = emul_to_vcpu(ctxt);
+	unsigned long last_retry_eip, last_retry_addr, gpa = cr2;
+
+	last_retry_eip = vcpu->arch.last_retry_eip;
+	last_retry_addr = vcpu->arch.last_retry_addr;
+
+	/*
+	 * If the emulation is caused by #PF and it is non-page_table
+	 * writing instruction, it means the VM-EXIT is caused by shadow
+	 * page protected, we can zap the shadow page and retry this
+	 * instruction directly.
+	 *
+	 * Note: if the guest uses a non-page-table modifying instruction
+	 * on the PDE that points to the instruction, then we will unmap
+	 * the instruction and go to an infinite loop. So, we cache the
+	 * last retried eip and the last fault address, if we meet the eip
+	 * and the address again, we can break out of the potential infinite
+	 * loop.
+	 */
+	vcpu->arch.last_retry_eip = vcpu->arch.last_retry_addr = 0;
+
+	if (!(emulation_type & EMULTYPE_RETRY))
+		return false;
+
+	if (x86_page_table_writing_insn(ctxt))
+		return false;
+
+	if (ctxt->eip == last_retry_eip && last_retry_addr == cr2)
+		return false;
+
+	vcpu->arch.last_retry_eip = ctxt->eip;
+	vcpu->arch.last_retry_addr = cr2;
+
+	if (!vcpu->arch.mmu.direct_map)
+		gpa = kvm_mmu_gva_to_gpa_write(vcpu, cr2, NULL);
+
+	kvm_mmu_unprotect_page(vcpu->kvm, gpa >> PAGE_SHIFT);
+
+	return true;
+}
+
 int x86_emulate_instruction(struct kvm_vcpu *vcpu,
 			    unsigned long cr2,
 			    int emulation_type,
@@ -4877,6 +4447,9 @@ int x86_emulate_instruction(struct kvm_vcpu *vcpu,
 		return EMULATE_DONE;
 	}
 
+	if (retry_instruction(ctxt, cr2, emulation_type))
+		return EMULATE_DONE;
+
 	/* this is needed for vmware backdoor interface to work since it
 	   changes registers values  during IO operation */
 	if (vcpu->arch.emulate_regs_need_sync_from_vcpu) {
@@ -5095,17 +4668,17 @@ static void kvm_timer_init(void)
 
 static DEFINE_PER_CPU(struct kvm_vcpu *, current_vcpu);
 
-static int kvm_is_in_guest(void)
+int kvm_is_in_guest(void)
 {
-	return percpu_read(current_vcpu) != NULL;
+	return __this_cpu_read(current_vcpu) != NULL;
 }
 
 static int kvm_is_user_mode(void)
 {
 	int user_mode = 3;
 
-	if (percpu_read(current_vcpu))
-		user_mode = kvm_x86_ops->get_cpl(percpu_read(current_vcpu));
+	if (__this_cpu_read(current_vcpu))
+		user_mode = kvm_x86_ops->get_cpl(__this_cpu_read(current_vcpu));
 
 	return user_mode != 0;
 }
@@ -5114,8 +4687,8 @@ static unsigned long kvm_get_guest_ip(void)
 {
 	unsigned long ip = 0;
 
-	if (percpu_read(current_vcpu))
-		ip = kvm_rip_read(percpu_read(current_vcpu));
+	if (__this_cpu_read(current_vcpu))
+		ip = kvm_rip_read(__this_cpu_read(current_vcpu));
 
 	return ip;
 }
@@ -5128,13 +4701,13 @@ static struct perf_guest_info_callbacks kvm_guest_cbs = {
 
 void kvm_before_handle_nmi(struct kvm_vcpu *vcpu)
 {
-	percpu_write(current_vcpu, vcpu);
+	__this_cpu_write(current_vcpu, vcpu);
 }
 EXPORT_SYMBOL_GPL(kvm_before_handle_nmi);
 
 void kvm_after_handle_nmi(struct kvm_vcpu *vcpu)
 {
-	percpu_write(current_vcpu, NULL);
+	__this_cpu_write(current_vcpu, NULL);
 }
 EXPORT_SYMBOL_GPL(kvm_after_handle_nmi);
 
@@ -5233,15 +4806,6 @@ int kvm_emulate_halt(struct kvm_vcpu *vcpu)
 }
 EXPORT_SYMBOL_GPL(kvm_emulate_halt);
 
-static inline gpa_t hc_gpa(struct kvm_vcpu *vcpu, unsigned long a0,
-			   unsigned long a1)
-{
-	if (is_long_mode(vcpu))
-		return a0;
-	else
-		return a0 | ((gpa_t)a1 << 32);
-}
-
 int kvm_hv_hypercall(struct kvm_vcpu *vcpu)
 {
 	u64 param, ingpa, outgpa, ret;
@@ -5337,9 +4901,6 @@ int kvm_emulate_hypercall(struct kvm_vcpu *vcpu)
 	case KVM_HC_VAPIC_POLL_IRQ:
 		ret = 0;
 		break;
-	case KVM_HC_MMU_OP:
-		r = kvm_pv_mmu_op(vcpu, a0, hc_gpa(vcpu, a1, a2), &ret);
-		break;
 	default:
 		ret = -KVM_ENOSYS;
 		break;
@@ -5369,125 +4930,6 @@ int emulator_fix_hypercall(struct x86_emulate_ctxt *ctxt)
 	return emulator_write_emulated(ctxt, rip, instruction, 3, NULL);
 }
 
-static int move_to_next_stateful_cpuid_entry(struct kvm_vcpu *vcpu, int i)
-{
-	struct kvm_cpuid_entry2 *e = &vcpu->arch.cpuid_entries[i];
-	int j, nent = vcpu->arch.cpuid_nent;
-
-	e->flags &= ~KVM_CPUID_FLAG_STATE_READ_NEXT;
-	/* when no next entry is found, the current entry[i] is reselected */
-	for (j = i + 1; ; j = (j + 1) % nent) {
-		struct kvm_cpuid_entry2 *ej = &vcpu->arch.cpuid_entries[j];
-		if (ej->function == e->function) {
-			ej->flags |= KVM_CPUID_FLAG_STATE_READ_NEXT;
-			return j;
-		}
-	}
-	return 0; /* silence gcc, even though control never reaches here */
-}
-
-/* find an entry with matching function, matching index (if needed), and that
- * should be read next (if it's stateful) */
-static int is_matching_cpuid_entry(struct kvm_cpuid_entry2 *e,
-	u32 function, u32 index)
-{
-	if (e->function != function)
-		return 0;
-	if ((e->flags & KVM_CPUID_FLAG_SIGNIFCANT_INDEX) && e->index != index)
-		return 0;
-	if ((e->flags & KVM_CPUID_FLAG_STATEFUL_FUNC) &&
-	    !(e->flags & KVM_CPUID_FLAG_STATE_READ_NEXT))
-		return 0;
-	return 1;
-}
-
-struct kvm_cpuid_entry2 *kvm_find_cpuid_entry(struct kvm_vcpu *vcpu,
-					      u32 function, u32 index)
-{
-	int i;
-	struct kvm_cpuid_entry2 *best = NULL;
-
-	for (i = 0; i < vcpu->arch.cpuid_nent; ++i) {
-		struct kvm_cpuid_entry2 *e;
-
-		e = &vcpu->arch.cpuid_entries[i];
-		if (is_matching_cpuid_entry(e, function, index)) {
-			if (e->flags & KVM_CPUID_FLAG_STATEFUL_FUNC)
-				move_to_next_stateful_cpuid_entry(vcpu, i);
-			best = e;
-			break;
-		}
-	}
-	return best;
-}
-EXPORT_SYMBOL_GPL(kvm_find_cpuid_entry);
-
-int cpuid_maxphyaddr(struct kvm_vcpu *vcpu)
-{
-	struct kvm_cpuid_entry2 *best;
-
-	best = kvm_find_cpuid_entry(vcpu, 0x80000000, 0);
-	if (!best || best->eax < 0x80000008)
-		goto not_found;
-	best = kvm_find_cpuid_entry(vcpu, 0x80000008, 0);
-	if (best)
-		return best->eax & 0xff;
-not_found:
-	return 36;
-}
-
-/*
- * If no match is found, check whether we exceed the vCPU's limit
- * and return the content of the highest valid _standard_ leaf instead.
- * This is to satisfy the CPUID specification.
- */
-static struct kvm_cpuid_entry2* check_cpuid_limit(struct kvm_vcpu *vcpu,
-                                                  u32 function, u32 index)
-{
-	struct kvm_cpuid_entry2 *maxlevel;
-
-	maxlevel = kvm_find_cpuid_entry(vcpu, function & 0x80000000, 0);
-	if (!maxlevel || maxlevel->eax >= function)
-		return NULL;
-	if (function & 0x80000000) {
-		maxlevel = kvm_find_cpuid_entry(vcpu, 0, 0);
-		if (!maxlevel)
-			return NULL;
-	}
-	return kvm_find_cpuid_entry(vcpu, maxlevel->eax, index);
-}
-
-void kvm_emulate_cpuid(struct kvm_vcpu *vcpu)
-{
-	u32 function, index;
-	struct kvm_cpuid_entry2 *best;
-
-	function = kvm_register_read(vcpu, VCPU_REGS_RAX);
-	index = kvm_register_read(vcpu, VCPU_REGS_RCX);
-	kvm_register_write(vcpu, VCPU_REGS_RAX, 0);
-	kvm_register_write(vcpu, VCPU_REGS_RBX, 0);
-	kvm_register_write(vcpu, VCPU_REGS_RCX, 0);
-	kvm_register_write(vcpu, VCPU_REGS_RDX, 0);
-	best = kvm_find_cpuid_entry(vcpu, function, index);
-
-	if (!best)
-		best = check_cpuid_limit(vcpu, function, index);
-
-	if (best) {
-		kvm_register_write(vcpu, VCPU_REGS_RAX, best->eax);
-		kvm_register_write(vcpu, VCPU_REGS_RBX, best->ebx);
-		kvm_register_write(vcpu, VCPU_REGS_RCX, best->ecx);
-		kvm_register_write(vcpu, VCPU_REGS_RDX, best->edx);
-	}
-	kvm_x86_ops->skip_emulated_instruction(vcpu);
-	trace_kvm_cpuid(function,
-			kvm_register_read(vcpu, VCPU_REGS_RAX),
-			kvm_register_read(vcpu, VCPU_REGS_RBX),
-			kvm_register_read(vcpu, VCPU_REGS_RCX),
-			kvm_register_read(vcpu, VCPU_REGS_RDX));
-}
-EXPORT_SYMBOL_GPL(kvm_emulate_cpuid);
-
 /*
  * Check if userspace requested an interrupt window, and that the
  * interrupt window is open.
@@ -5648,6 +5090,7 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
 	int r;
 	bool req_int_win = !irqchip_in_kernel(vcpu->kvm) &&
 		vcpu->run->request_interrupt_window;
+	bool req_immediate_exit = 0;
 
 	if (vcpu->requests) {
 		if (kvm_check_request(KVM_REQ_MMU_RELOAD, vcpu))
@@ -5687,7 +5130,12 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
 			record_steal_time(vcpu);
 		if (kvm_check_request(KVM_REQ_NMI, vcpu))
 			process_nmi(vcpu);
-
+		req_immediate_exit =
+			kvm_check_request(KVM_REQ_IMMEDIATE_EXIT, vcpu);
+		if (kvm_check_request(KVM_REQ_PMU, vcpu))
+			kvm_handle_pmu_event(vcpu);
+		if (kvm_check_request(KVM_REQ_PMI, vcpu))
+			kvm_deliver_pmi(vcpu);
 	}
 
 	r = kvm_mmu_reload(vcpu);
@@ -5738,6 +5186,9 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
 
 	srcu_read_unlock(&vcpu->kvm->srcu, vcpu->srcu_idx);
 
+	if (req_immediate_exit)
+		smp_send_reschedule(vcpu->cpu);
+
 	kvm_guest_enter();
 
 	if (unlikely(vcpu->arch.switch_db_regs)) {
@@ -5943,10 +5394,6 @@ int kvm_arch_vcpu_ioctl_run(struct kvm_vcpu *vcpu, struct kvm_run *kvm_run)
 	if (r <= 0)
 		goto out;
 
-	if (kvm_run->exit_reason == KVM_EXIT_HYPERCALL)
-		kvm_register_write(vcpu, VCPU_REGS_RAX,
-				     kvm_run->hypercall.ret);
-
 	r = __vcpu_run(vcpu);
 
 out:
@@ -6148,7 +5595,7 @@ int kvm_arch_vcpu_ioctl_set_sregs(struct kvm_vcpu *vcpu,
 	mmu_reset_needed |= kvm_read_cr4(vcpu) != sregs->cr4;
 	kvm_x86_ops->set_cr4(vcpu, sregs->cr4);
 	if (sregs->cr4 & X86_CR4_OSXSAVE)
-		update_cpuid(vcpu);
+		kvm_update_cpuid(vcpu);
 
 	idx = srcu_read_lock(&vcpu->kvm->srcu);
 	if (!is_long_mode(vcpu) && is_pae(vcpu)) {
@@ -6425,6 +5872,8 @@ int kvm_arch_vcpu_reset(struct kvm_vcpu *vcpu)
 	kvm_async_pf_hash_reset(vcpu);
 	vcpu->arch.apf.halted = false;
 
+	kvm_pmu_reset(vcpu);
+
 	return kvm_x86_ops->vcpu_reset(vcpu);
 }
 
@@ -6473,10 +5922,6 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
 	kvm = vcpu->kvm;
 
 	vcpu->arch.emulate_ctxt.ops = &emulate_ops;
-	vcpu->arch.walk_mmu = &vcpu->arch.mmu;
-	vcpu->arch.mmu.root_hpa = INVALID_PAGE;
-	vcpu->arch.mmu.translate_gpa = translate_gpa;
-	vcpu->arch.nested_mmu.translate_gpa = translate_nested_gpa;
 	if (!irqchip_in_kernel(kvm) || kvm_vcpu_is_bsp(vcpu))
 		vcpu->arch.mp_state = KVM_MP_STATE_RUNNABLE;
 	else
@@ -6513,6 +5958,7 @@ int kvm_arch_vcpu_init(struct kvm_vcpu *vcpu)
 		goto fail_free_mce_banks;
 
 	kvm_async_pf_hash_reset(vcpu);
+	kvm_pmu_init(vcpu);
 
 	return 0;
 fail_free_mce_banks:
@@ -6531,6 +5977,7 @@ void kvm_arch_vcpu_uninit(struct kvm_vcpu *vcpu)
 {
 	int idx;
 
+	kvm_pmu_destroy(vcpu);
 	kfree(vcpu->arch.mce_banks);
 	kvm_free_lapic(vcpu);
 	idx = srcu_read_lock(&vcpu->kvm->srcu);
diff --git a/arch/x86/kvm/x86.h b/arch/x86/kvm/x86.h
index d36fe237c665..cb80c293cdd8 100644
--- a/arch/x86/kvm/x86.h
+++ b/arch/x86/kvm/x86.h
@@ -33,9 +33,6 @@ static inline bool kvm_exception_is_soft(unsigned int nr)
 	return (nr == BP_VECTOR) || (nr == OF_VECTOR);
 }
 
-struct kvm_cpuid_entry2 *kvm_find_cpuid_entry(struct kvm_vcpu *vcpu,
-                                             u32 function, u32 index);
-
 static inline bool is_protmode(struct kvm_vcpu *vcpu)
 {
 	return kvm_read_cr0_bits(vcpu, X86_CR0_PE);
@@ -125,4 +122,6 @@ int kvm_write_guest_virt_system(struct x86_emulate_ctxt *ctxt,
 	gva_t addr, void *val, unsigned int bytes,
 	struct x86_exception *exception);
 
+extern u64 host_xcr0;
+
 #endif
diff --git a/arch/x86/platform/mrst/early_printk_mrst.c b/arch/x86/platform/mrst/early_printk_mrst.c
index 25bfdbb5b130..3c6e328483c7 100644
--- a/arch/x86/platform/mrst/early_printk_mrst.c
+++ b/arch/x86/platform/mrst/early_printk_mrst.c
@@ -245,16 +245,24 @@ struct console early_mrst_console = {
  * Following is the early console based on Medfield HSU (High
  * Speed UART) device.
  */
-#define HSU_PORT2_PADDR		0xffa28180
+#define HSU_PORT_BASE		0xffa28080
 
 static void __iomem *phsu;
 
-void hsu_early_console_init(void)
+void hsu_early_console_init(const char *s)
 {
+	unsigned long paddr, port = 0;
 	u8 lcr;
 
-	phsu = (void *)set_fixmap_offset_nocache(FIX_EARLYCON_MEM_BASE,
-							HSU_PORT2_PADDR);
+	/*
+	 * Select the early HSU console port if specified by user in the
+	 * kernel command line.
+	 */
+	if (*s && !kstrtoul(s, 10, &port))
+		port = clamp_val(port, 0, 2);
+
+	paddr = HSU_PORT_BASE + port * 0x80;
+	phsu = (void *)set_fixmap_offset_nocache(FIX_EARLYCON_MEM_BASE, paddr);
 
 	/* Disable FIFO */
 	writeb(0x0, phsu + UART_FCR);
diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig
index 26c731a106af..fdce49c7aff6 100644
--- a/arch/x86/xen/Kconfig
+++ b/arch/x86/xen/Kconfig
@@ -29,7 +29,8 @@ config XEN_PVHVM
 
 config XEN_MAX_DOMAIN_MEMORY
        int
-       default 128
+       default 500 if X86_64
+       default 64 if X86_32
        depends on XEN
        help
          This only affects the sizing of some bss arrays, the unused
@@ -48,3 +49,4 @@ config XEN_DEBUG_FS
 	help
 	  Enable statistics output and various tuning options in debugfs.
 	  Enabling this option may incur a significant performance overhead.
+
diff --git a/arch/x86/xen/grant-table.c b/arch/x86/xen/grant-table.c
index 5a40d24ba331..3a5f55d51907 100644
--- a/arch/x86/xen/grant-table.c
+++ b/arch/x86/xen/grant-table.c
@@ -54,6 +54,20 @@ static int map_pte_fn(pte_t *pte, struct page *pmd_page,
 	return 0;
 }
 
+/*
+ * This function is used to map shared frames to store grant status. It is
+ * different from map_pte_fn above, the frames type here is uint64_t.
+ */
+static int map_pte_fn_status(pte_t *pte, struct page *pmd_page,
+			     unsigned long addr, void *data)
+{
+	uint64_t **frames = (uint64_t **)data;
+
+	set_pte_at(&init_mm, addr, pte, mfn_pte((*frames)[0], PAGE_KERNEL));
+	(*frames)++;
+	return 0;
+}
+
 static int unmap_pte_fn(pte_t *pte, struct page *pmd_page,
 			unsigned long addr, void *data)
 {
@@ -64,10 +78,10 @@ static int unmap_pte_fn(pte_t *pte, struct page *pmd_page,
 
 int arch_gnttab_map_shared(unsigned long *frames, unsigned long nr_gframes,
 			   unsigned long max_nr_gframes,
-			   struct grant_entry **__shared)
+			   void **__shared)
 {
 	int rc;
-	struct grant_entry *shared = *__shared;
+	void *shared = *__shared;
 
 	if (shared == NULL) {
 		struct vm_struct *area =
@@ -83,8 +97,30 @@ int arch_gnttab_map_shared(unsigned long *frames, unsigned long nr_gframes,
 	return rc;
 }
 
-void arch_gnttab_unmap_shared(struct grant_entry *shared,
-			      unsigned long nr_gframes)
+int arch_gnttab_map_status(uint64_t *frames, unsigned long nr_gframes,
+			   unsigned long max_nr_gframes,
+			   grant_status_t **__shared)
+{
+	int rc;
+	grant_status_t *shared = *__shared;
+
+	if (shared == NULL) {
+		/* No need to pass in PTE as we are going to do it
+		 * in apply_to_page_range anyhow. */
+		struct vm_struct *area =
+			alloc_vm_area(PAGE_SIZE * max_nr_gframes, NULL);
+		BUG_ON(area == NULL);
+		shared = area->addr;
+		*__shared = shared;
+	}
+
+	rc = apply_to_page_range(&init_mm, (unsigned long)shared,
+				 PAGE_SIZE * nr_gframes,
+				 map_pte_fn_status, &frames);
+	return rc;
+}
+
+void arch_gnttab_unmap(void *shared, unsigned long nr_gframes)
 {
 	apply_to_page_range(&init_mm, (unsigned long)shared,
 			    PAGE_SIZE * nr_gframes, unmap_pte_fn, NULL);
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index f4bf8aa574f4..58a0e46c404d 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -1852,7 +1852,7 @@ pgd_t * __init xen_setup_kernel_pagetable(pgd_t *pgd,
 	xen_write_cr3(__pa(initial_page_table));
 
 	memblock_reserve(__pa(xen_start_info->pt_base),
-			 xen_start_info->nr_pt_frames * PAGE_SIZE));
+			 xen_start_info->nr_pt_frames * PAGE_SIZE);
 
 	return initial_page_table;
 }
diff --git a/block/blk-cgroup.c b/block/blk-cgroup.c
index 8f630cec906e..b8c143d68ee0 100644
--- a/block/blk-cgroup.c
+++ b/block/blk-cgroup.c
@@ -30,8 +30,10 @@ EXPORT_SYMBOL_GPL(blkio_root_cgroup);
 
 static struct cgroup_subsys_state *blkiocg_create(struct cgroup_subsys *,
 						  struct cgroup *);
-static int blkiocg_can_attach_task(struct cgroup *, struct task_struct *);
-static void blkiocg_attach_task(struct cgroup *, struct task_struct *);
+static int blkiocg_can_attach(struct cgroup_subsys *, struct cgroup *,
+			      struct cgroup_taskset *);
+static void blkiocg_attach(struct cgroup_subsys *, struct cgroup *,
+			   struct cgroup_taskset *);
 static void blkiocg_destroy(struct cgroup_subsys *, struct cgroup *);
 static int blkiocg_populate(struct cgroup_subsys *, struct cgroup *);
 
@@ -44,8 +46,8 @@ static int blkiocg_populate(struct cgroup_subsys *, struct cgroup *);
 struct cgroup_subsys blkio_subsys = {
 	.name = "blkio",
 	.create = blkiocg_create,
-	.can_attach_task = blkiocg_can_attach_task,
-	.attach_task = blkiocg_attach_task,
+	.can_attach = blkiocg_can_attach,
+	.attach = blkiocg_attach,
 	.destroy = blkiocg_destroy,
 	.populate = blkiocg_populate,
 #ifdef CONFIG_BLK_CGROUP
@@ -1626,30 +1628,39 @@ done:
  * of the main cic data structures.  For now we allow a task to change
  * its cgroup only if it's the only owner of its ioc.
  */
-static int blkiocg_can_attach_task(struct cgroup *cgrp, struct task_struct *tsk)
+static int blkiocg_can_attach(struct cgroup_subsys *ss, struct cgroup *cgrp,
+			      struct cgroup_taskset *tset)
 {
+	struct task_struct *task;
 	struct io_context *ioc;
 	int ret = 0;
 
 	/* task_lock() is needed to avoid races with exit_io_context() */
-	task_lock(tsk);
-	ioc = tsk->io_context;
-	if (ioc && atomic_read(&ioc->nr_tasks) > 1)
-		ret = -EINVAL;
-	task_unlock(tsk);
-
+	cgroup_taskset_for_each(task, cgrp, tset) {
+		task_lock(task);
+		ioc = task->io_context;
+		if (ioc && atomic_read(&ioc->nr_tasks) > 1)
+			ret = -EINVAL;
+		task_unlock(task);
+		if (ret)
+			break;
+	}
 	return ret;
 }
 
-static void blkiocg_attach_task(struct cgroup *cgrp, struct task_struct *tsk)
+static void blkiocg_attach(struct cgroup_subsys *ss, struct cgroup *cgrp,
+			   struct cgroup_taskset *tset)
 {
+	struct task_struct *task;
 	struct io_context *ioc;
 
-	task_lock(tsk);
-	ioc = tsk->io_context;
-	if (ioc)
-		ioc->cgroup_changed = 1;
-	task_unlock(tsk);
+	cgroup_taskset_for_each(task, cgrp, tset) {
+		task_lock(task);
+		ioc = task->io_context;
+		if (ioc)
+			ioc->cgroup_changed = 1;
+		task_unlock(task);
+	}
 }
 
 void blkio_policy_register(struct blkio_policy_type *blkiop)
diff --git a/drivers/acpi/pci_root.c b/drivers/acpi/pci_root.c
index 2672c798272f..7aff6312ce7c 100644
--- a/drivers/acpi/pci_root.c
+++ b/drivers/acpi/pci_root.c
@@ -596,6 +596,13 @@ static int __devinit acpi_pci_root_add(struct acpi_device *device)
 		if (ACPI_SUCCESS(status)) {
 			dev_info(root->bus->bridge,
 				"ACPI _OSC control (0x%02x) granted\n", flags);
+			if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_ASPM) {
+				/*
+				 * We have ASPM control, but the FADT indicates
+				 * that it's unsupported. Clear it.
+				 */
+				pcie_clear_aspm(root->bus);
+			}
 		} else {
 			dev_info(root->bus->bridge,
 				"ACPI _OSC request failed (%s), "
diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index cf047c406d92..6bdedd7cca2c 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -820,7 +820,7 @@ config PATA_PLATFORM
 
 config PATA_OF_PLATFORM
 	tristate "OpenFirmware platform device PATA support"
-	depends on PATA_PLATFORM && OF && OF_IRQ
+	depends on PATA_PLATFORM && OF
 	help
 	  This option enables support for generic directly connected ATA
 	  devices commonly found on embedded systems with OpenFirmware
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index cf26222a93c5..d07bf0366d99 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -52,7 +52,8 @@
 #define DRV_VERSION	"3.0"
 
 enum {
-	AHCI_PCI_BAR		= 5,
+	AHCI_PCI_BAR_STA2X11	= 0,
+	AHCI_PCI_BAR_STANDARD	= 5,
 };
 
 enum board_ids {
@@ -375,6 +376,9 @@ static const struct pci_device_id ahci_pci_tbl[] = {
 	{ PCI_VDEVICE(SI, 0x1185), board_ahci },		/* SiS 968 */
 	{ PCI_VDEVICE(SI, 0x0186), board_ahci },		/* SiS 968 */
 
+	/* ST Microelectronics */
+	{ PCI_VDEVICE(STMICRO, 0xCC06), board_ahci },		/* ST ConneXt */
+
 	/* Marvell */
 	{ PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv },	/* 6145 */
 	{ PCI_VDEVICE(MARVELL, 0x6121), board_ahci_mv },	/* 6121 */
@@ -622,6 +626,13 @@ static int ahci_configure_dma_masks(struct pci_dev *pdev, int using_dac)
 {
 	int rc;
 
+	/*
+	 * If the device fixup already set the dma_mask to some non-standard
+	 * value, don't extend it here. This happens on STA2X11, for example.
+	 */
+	if (pdev->dma_mask && pdev->dma_mask < DMA_BIT_MASK(32))
+		return 0;
+
 	if (using_dac &&
 	    !pci_set_dma_mask(pdev, DMA_BIT_MASK(64))) {
 		rc = pci_set_consistent_dma_mask(pdev, DMA_BIT_MASK(64));
@@ -1026,6 +1037,7 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	struct ahci_host_priv *hpriv;
 	struct ata_host *host;
 	int n_ports, i, rc;
+	int ahci_pci_bar = AHCI_PCI_BAR_STANDARD;
 
 	VPRINTK("ENTER\n");
 
@@ -1057,6 +1069,10 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 		dev_info(&pdev->dev,
 			 "PDC42819 can only drive SATA devices with this driver\n");
 
+	/* The Connext uses non-standard BAR */
+	if (pdev->vendor == PCI_VENDOR_ID_STMICRO && pdev->device == 0xCC06)
+		ahci_pci_bar = AHCI_PCI_BAR_STA2X11;
+
 	/* acquire resources */
 	rc = pcim_enable_device(pdev);
 	if (rc)
@@ -1065,7 +1081,7 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	/* AHCI controllers often implement SFF compatible interface.
 	 * Grab all PCI BARs just in case.
 	 */
-	rc = pcim_iomap_regions_request_all(pdev, 1 << AHCI_PCI_BAR, DRV_NAME);
+	rc = pcim_iomap_regions_request_all(pdev, 1 << ahci_pci_bar, DRV_NAME);
 	if (rc == -EBUSY)
 		pcim_pin_device(pdev);
 	if (rc)
@@ -1108,7 +1124,7 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if ((hpriv->flags & AHCI_HFLAG_NO_MSI) || pci_enable_msi(pdev))
 		pci_intx(pdev, 1);
 
-	hpriv->mmio = pcim_iomap_table(pdev)[AHCI_PCI_BAR];
+	hpriv->mmio = pcim_iomap_table(pdev)[ahci_pci_bar];
 
 	/* save initial config */
 	ahci_pci_save_initial_config(pdev, hpriv);
@@ -1172,8 +1188,8 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	for (i = 0; i < host->n_ports; i++) {
 		struct ata_port *ap = host->ports[i];
 
-		ata_port_pbar_desc(ap, AHCI_PCI_BAR, -1, "abar");
-		ata_port_pbar_desc(ap, AHCI_PCI_BAR,
+		ata_port_pbar_desc(ap, ahci_pci_bar, -1, "abar");
+		ata_port_pbar_desc(ap, ahci_pci_bar,
 				   0x100 + ap->port_no * 0x80, "port");
 
 		/* set enclosure management message type */
diff --git a/drivers/ata/ahci_platform.c b/drivers/ata/ahci_platform.c
index 43b875810d1b..48be4e189163 100644
--- a/drivers/ata/ahci_platform.c
+++ b/drivers/ata/ahci_platform.c
@@ -202,6 +202,71 @@ static int __devexit ahci_remove(struct platform_device *pdev)
 	return 0;
 }
 
+#ifdef CONFIG_PM
+static int ahci_suspend(struct device *dev)
+{
+	struct ahci_platform_data *pdata = dev_get_platdata(dev);
+	struct ata_host *host = dev_get_drvdata(dev);
+	struct ahci_host_priv *hpriv = host->private_data;
+	void __iomem *mmio = hpriv->mmio;
+	u32 ctl;
+	int rc;
+
+	if (hpriv->flags & AHCI_HFLAG_NO_SUSPEND) {
+		dev_err(dev, "firmware update required for suspend/resume\n");
+		return -EIO;
+	}
+
+	/*
+	 * AHCI spec rev1.1 section 8.3.3:
+	 * Software must disable interrupts prior to requesting a
+	 * transition of the HBA to D3 state.
+	 */
+	ctl = readl(mmio + HOST_CTL);
+	ctl &= ~HOST_IRQ_EN;
+	writel(ctl, mmio + HOST_CTL);
+	readl(mmio + HOST_CTL); /* flush */
+
+	rc = ata_host_suspend(host, PMSG_SUSPEND);
+	if (rc)
+		return rc;
+
+	if (pdata && pdata->suspend)
+		return pdata->suspend(dev);
+	return 0;
+}
+
+static int ahci_resume(struct device *dev)
+{
+	struct ahci_platform_data *pdata = dev_get_platdata(dev);
+	struct ata_host *host = dev_get_drvdata(dev);
+	int rc;
+
+	if (pdata && pdata->resume) {
+		rc = pdata->resume(dev);
+		if (rc)
+			return rc;
+	}
+
+	if (dev->power.power_state.event == PM_EVENT_SUSPEND) {
+		rc = ahci_reset_controller(host);
+		if (rc)
+			return rc;
+
+		ahci_init_controller(host);
+	}
+
+	ata_host_resume(host);
+
+	return 0;
+}
+
+static struct dev_pm_ops ahci_pm_ops = {
+	.suspend		= &ahci_suspend,
+	.resume			= &ahci_resume,
+};
+#endif
+
 static const struct of_device_id ahci_of_match[] = {
 	{ .compatible = "calxeda,hb-ahci", },
 	{},
@@ -214,6 +279,9 @@ static struct platform_driver ahci_driver = {
 		.name = "ahci",
 		.owner = THIS_MODULE,
 		.of_match_table = ahci_of_match,
+#ifdef CONFIG_PM
+		.pm = &ahci_pm_ops,
+#endif
 	},
 	.id_table	= ahci_devtype,
 };
diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index 3c92dbd751e0..a72bfd0ecfee 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -746,9 +746,6 @@ static void ahci_start_port(struct ata_port *ap)
 	/* enable FIS reception */
 	ahci_start_fis_rx(ap);
 
-	/* enable DMA */
-	ahci_start_engine(ap);
-
 	/* turn on LEDs */
 	if (ap->flags & ATA_FLAG_EM) {
 		ata_for_each_link(link, ap, EDGE) {
@@ -2022,7 +2019,7 @@ static int ahci_port_suspend(struct ata_port *ap, pm_message_t mesg)
 		ahci_power_down(ap);
 	else {
 		ata_port_err(ap, "%s (%d)\n", emsg, rc);
-		ahci_start_port(ap);
+		ata_port_freeze(ap);
 	}
 
 	return rc;
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index c04ad68cb602..11c9aea4f4f7 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -66,6 +66,7 @@
 #include <asm/byteorder.h>
 #include <linux/cdrom.h>
 #include <linux/ratelimit.h>
+#include <linux/pm_runtime.h>
 
 #include "libata.h"
 #include "libata-transport.h"
@@ -3248,10 +3249,10 @@ int ata_do_set_mode(struct ata_link *link, struct ata_device **r_failed_dev)
 		ata_force_xfermask(dev);
 
 		pio_mask = ata_pack_xfermask(dev->pio_mask, 0, 0);
-		dma_mask = ata_pack_xfermask(0, dev->mwdma_mask, dev->udma_mask);
 
 		if (libata_dma_mask & mode_mask)
-			dma_mask = ata_pack_xfermask(0, dev->mwdma_mask, dev->udma_mask);
+			dma_mask = ata_pack_xfermask(0, dev->mwdma_mask,
+						     dev->udma_mask);
 		else
 			dma_mask = 0;
 
@@ -5234,73 +5235,55 @@ bool ata_link_offline(struct ata_link *link)
 }
 
 #ifdef CONFIG_PM
-static int ata_host_request_pm(struct ata_host *host, pm_message_t mesg,
+static int ata_port_request_pm(struct ata_port *ap, pm_message_t mesg,
 			       unsigned int action, unsigned int ehi_flags,
 			       int wait)
 {
+	struct ata_link *link;
 	unsigned long flags;
-	int i, rc;
-
-	for (i = 0; i < host->n_ports; i++) {
-		struct ata_port *ap = host->ports[i];
-		struct ata_link *link;
+	int rc;
 
-		/* Previous resume operation might still be in
-		 * progress.  Wait for PM_PENDING to clear.
-		 */
-		if (ap->pflags & ATA_PFLAG_PM_PENDING) {
-			ata_port_wait_eh(ap);
-			WARN_ON(ap->pflags & ATA_PFLAG_PM_PENDING);
-		}
+	/* Previous resume operation might still be in
+	 * progress.  Wait for PM_PENDING to clear.
+	 */
+	if (ap->pflags & ATA_PFLAG_PM_PENDING) {
+		ata_port_wait_eh(ap);
+		WARN_ON(ap->pflags & ATA_PFLAG_PM_PENDING);
+	}
 
-		/* request PM ops to EH */
-		spin_lock_irqsave(ap->lock, flags);
+	/* request PM ops to EH */
+	spin_lock_irqsave(ap->lock, flags);
 
-		ap->pm_mesg = mesg;
-		if (wait) {
-			rc = 0;
-			ap->pm_result = &rc;
-		}
+	ap->pm_mesg = mesg;
+	if (wait) {
+		rc = 0;
+		ap->pm_result = &rc;
+	}
 
-		ap->pflags |= ATA_PFLAG_PM_PENDING;
-		ata_for_each_link(link, ap, HOST_FIRST) {
-			link->eh_info.action |= action;
-			link->eh_info.flags |= ehi_flags;
-		}
+	ap->pflags |= ATA_PFLAG_PM_PENDING;
+	ata_for_each_link(link, ap, HOST_FIRST) {
+		link->eh_info.action |= action;
+		link->eh_info.flags |= ehi_flags;
+	}
 
-		ata_port_schedule_eh(ap);
+	ata_port_schedule_eh(ap);
 
-		spin_unlock_irqrestore(ap->lock, flags);
+	spin_unlock_irqrestore(ap->lock, flags);
 
-		/* wait and check result */
-		if (wait) {
-			ata_port_wait_eh(ap);
-			WARN_ON(ap->pflags & ATA_PFLAG_PM_PENDING);
-			if (rc)
-				return rc;
-		}
+	/* wait and check result */
+	if (wait) {
+		ata_port_wait_eh(ap);
+		WARN_ON(ap->pflags & ATA_PFLAG_PM_PENDING);
 	}
 
-	return 0;
+	return rc;
 }
 
-/**
- *	ata_host_suspend - suspend host
- *	@host: host to suspend
- *	@mesg: PM message
- *
- *	Suspend @host.  Actual operation is performed by EH.  This
- *	function requests EH to perform PM operations and waits for EH
- *	to finish.
- *
- *	LOCKING:
- *	Kernel thread context (may sleep).
- *
- *	RETURNS:
- *	0 on success, -errno on failure.
- */
-int ata_host_suspend(struct ata_host *host, pm_message_t mesg)
+#define to_ata_port(d) container_of(d, struct ata_port, tdev)
+
+static int ata_port_suspend_common(struct device *dev, pm_message_t mesg)
 {
+	struct ata_port *ap = to_ata_port(dev);
 	unsigned int ehi_flags = ATA_EHI_QUIET;
 	int rc;
 
@@ -5315,31 +5298,108 @@ int ata_host_suspend(struct ata_host *host, pm_message_t mesg)
 	if (mesg.event == PM_EVENT_SUSPEND)
 		ehi_flags |= ATA_EHI_NO_AUTOPSY | ATA_EHI_NO_RECOVERY;
 
-	rc = ata_host_request_pm(host, mesg, 0, ehi_flags, 1);
-	if (rc == 0)
-		host->dev->power.power_state = mesg;
+	rc = ata_port_request_pm(ap, mesg, 0, ehi_flags, 1);
 	return rc;
 }
 
+static int ata_port_suspend(struct device *dev)
+{
+	if (pm_runtime_suspended(dev))
+		return 0;
+
+	return ata_port_suspend_common(dev, PMSG_SUSPEND);
+}
+
+static int ata_port_do_freeze(struct device *dev)
+{
+	if (pm_runtime_suspended(dev))
+		pm_runtime_resume(dev);
+
+	return ata_port_suspend_common(dev, PMSG_FREEZE);
+}
+
+static int ata_port_poweroff(struct device *dev)
+{
+	if (pm_runtime_suspended(dev))
+		return 0;
+
+	return ata_port_suspend_common(dev, PMSG_HIBERNATE);
+}
+
+static int ata_port_resume_common(struct device *dev)
+{
+	struct ata_port *ap = to_ata_port(dev);
+	int rc;
+
+	rc = ata_port_request_pm(ap, PMSG_ON, ATA_EH_RESET,
+		ATA_EHI_NO_AUTOPSY | ATA_EHI_QUIET, 1);
+	return rc;
+}
+
+static int ata_port_resume(struct device *dev)
+{
+	int rc;
+
+	rc = ata_port_resume_common(dev);
+	if (!rc) {
+		pm_runtime_disable(dev);
+		pm_runtime_set_active(dev);
+		pm_runtime_enable(dev);
+	}
+
+	return rc;
+}
+
+static int ata_port_runtime_idle(struct device *dev)
+{
+	return pm_runtime_suspend(dev);
+}
+
+static const struct dev_pm_ops ata_port_pm_ops = {
+	.suspend = ata_port_suspend,
+	.resume = ata_port_resume,
+	.freeze = ata_port_do_freeze,
+	.thaw = ata_port_resume,
+	.poweroff = ata_port_poweroff,
+	.restore = ata_port_resume,
+
+	.runtime_suspend = ata_port_suspend,
+	.runtime_resume = ata_port_resume_common,
+	.runtime_idle = ata_port_runtime_idle,
+};
+
+/**
+ *	ata_host_suspend - suspend host
+ *	@host: host to suspend
+ *	@mesg: PM message
+ *
+ *	Suspend @host.  Actual operation is performed by port suspend.
+ */
+int ata_host_suspend(struct ata_host *host, pm_message_t mesg)
+{
+	host->dev->power.power_state = mesg;
+	return 0;
+}
+
 /**
  *	ata_host_resume - resume host
  *	@host: host to resume
  *
- *	Resume @host.  Actual operation is performed by EH.  This
- *	function requests EH to perform PM operations and returns.
- *	Note that all resume operations are performed parallelly.
- *
- *	LOCKING:
- *	Kernel thread context (may sleep).
+ *	Resume @host.  Actual operation is performed by port resume.
  */
 void ata_host_resume(struct ata_host *host)
 {
-	ata_host_request_pm(host, PMSG_ON, ATA_EH_RESET,
-			    ATA_EHI_NO_AUTOPSY | ATA_EHI_QUIET, 0);
 	host->dev->power.power_state = PMSG_ON;
 }
 #endif
 
+struct device_type ata_port_type = {
+	.name = "ata_port",
+#ifdef CONFIG_PM
+	.pm = &ata_port_pm_ops,
+#endif
+};
+
 /**
  *	ata_dev_init - Initialize an ata_device structure
  *	@dev: Device structure to initialize
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 2a5412e7e9c1..508a60bfe5c1 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -3381,6 +3381,7 @@ int ata_scsi_add_hosts(struct ata_host *host, struct scsi_host_template *sht)
 		if (!shost)
 			goto err_alloc;
 
+		shost->eh_noresume = 1;
 		*(struct ata_port **)&shost->hostdata[0] = ap;
 		ap->scsi_host = shost;
 
@@ -3398,7 +3399,7 @@ int ata_scsi_add_hosts(struct ata_host *host, struct scsi_host_template *sht)
 		 */
 		shost->max_host_blocked = 1;
 
-		rc = scsi_add_host(ap->scsi_host, ap->host->dev);
+		rc = scsi_add_host(ap->scsi_host, &ap->tdev);
 		if (rc)
 			goto err_add;
 	}
diff --git a/drivers/ata/libata-sff.c b/drivers/ata/libata-sff.c
index 4cadfa28f940..9691dd0966d7 100644
--- a/drivers/ata/libata-sff.c
+++ b/drivers/ata/libata-sff.c
@@ -929,11 +929,11 @@ static void atapi_pio_bytes(struct ata_queued_cmd *qc)
 	bytes = (bc_hi << 8) | bc_lo;
 
 	/* shall be cleared to zero, indicating xfer of data */
-	if (unlikely(ireason & (1 << 0)))
+	if (unlikely(ireason & ATAPI_COD))
 		goto atapi_check;
 
 	/* make sure transfer direction matches expected */
-	i_write = ((ireason & (1 << 1)) == 0) ? 1 : 0;
+	i_write = ((ireason & ATAPI_IO) == 0) ? 1 : 0;
 	if (unlikely(do_write != i_write))
 		goto atapi_check;
 
diff --git a/drivers/ata/libata-transport.c b/drivers/ata/libata-transport.c
index ce9dc6207f37..9a7f0ea565df 100644
--- a/drivers/ata/libata-transport.c
+++ b/drivers/ata/libata-transport.c
@@ -32,6 +32,7 @@
 #include <linux/libata.h>
 #include <linux/hdreg.h>
 #include <linux/uaccess.h>
+#include <linux/pm_runtime.h>
 
 #include "libata.h"
 #include "libata-transport.h"
@@ -279,6 +280,7 @@ int ata_tport_add(struct device *parent,
 	struct device *dev = &ap->tdev;
 
 	device_initialize(dev);
+	dev->type = &ata_port_type;
 
 	dev->parent = get_device(parent);
 	dev->release = ata_tport_release;
@@ -289,6 +291,9 @@ int ata_tport_add(struct device *parent,
 		goto tport_err;
 	}
 
+	pm_runtime_set_active(dev);
+	pm_runtime_enable(dev);
+
 	transport_add_device(dev);
 	transport_configure_device(dev);
 
diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h
index 773de97988a2..814486d35c44 100644
--- a/drivers/ata/libata.h
+++ b/drivers/ata/libata.h
@@ -58,6 +58,7 @@ extern int atapi_passthru16;
 extern int libata_fua;
 extern int libata_noacpi;
 extern int libata_allow_tpm;
+extern struct device_type ata_port_type;
 extern struct ata_link *ata_dev_phys_link(struct ata_device *dev);
 extern void ata_force_cbl(struct ata_port *ap);
 extern u64 ata_tf_to_lba(const struct ata_taskfile *tf);
diff --git a/drivers/ata/pata_arasan_cf.c b/drivers/ata/pata_arasan_cf.c
index e8574bba3ee4..048589fad2ca 100644
--- a/drivers/ata/pata_arasan_cf.c
+++ b/drivers/ata/pata_arasan_cf.c
@@ -963,17 +963,7 @@ static struct platform_driver arasan_cf_driver = {
 	},
 };
 
-static int __init arasan_cf_init(void)
-{
-	return platform_driver_register(&arasan_cf_driver);
-}
-module_init(arasan_cf_init);
-
-static void __exit arasan_cf_exit(void)
-{
-	platform_driver_unregister(&arasan_cf_driver);
-}
-module_exit(arasan_cf_exit);
+module_platform_driver(arasan_cf_driver);
 
 MODULE_AUTHOR("Viresh Kumar <viresh.kumar@st.com>");
 MODULE_DESCRIPTION("Arasan ATA Compact Flash driver");
diff --git a/drivers/ata/pata_at91.c b/drivers/ata/pata_at91.c
index a76f24a8e5db..a7d91a72ee35 100644
--- a/drivers/ata/pata_at91.c
+++ b/drivers/ata/pata_at91.c
@@ -360,7 +360,7 @@ static int __devinit pata_at91_probe(struct platform_device *pdev)
 	ap->flags |= ATA_FLAG_SLAVE_POSS;
 	ap->pio_mask = ATA_PIO4;
 
-	if (!irq) {
+	if (!gpio_is_valid(irq)) {
 		ap->flags |= ATA_FLAG_PIO_POLLING;
 		ata_port_desc(ap, "no IRQ, using PIO polling");
 	}
@@ -414,8 +414,8 @@ static int __devinit pata_at91_probe(struct platform_device *pdev)
 
 	host->private_data = info;
 
-	ret = ata_host_activate(host, irq ? gpio_to_irq(irq) : 0,
-			irq ? ata_sff_interrupt : NULL,
+	return ata_host_activate(host, gpio_is_valid(irq) ? gpio_to_irq(irq) : 0,
+			gpio_is_valid(irq) ? ata_sff_interrupt : NULL,
 			irq_flags, &pata_at91_sht);
 
 	if (!ret)
@@ -454,20 +454,7 @@ static struct platform_driver pata_at91_driver = {
 	},
 };
 
-static int __init pata_at91_init(void)
-{
-	return platform_driver_register(&pata_at91_driver);
-}
-
-static void __exit pata_at91_exit(void)
-{
-	platform_driver_unregister(&pata_at91_driver);
-}
-
-
-module_init(pata_at91_init);
-module_exit(pata_at91_exit);
-
+module_platform_driver(pata_at91_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Driver for CF in True IDE mode on AT91SAM9260 SoC");
diff --git a/drivers/ata/pata_bf54x.c b/drivers/ata/pata_bf54x.c
index bd987bb082eb..d6a4677fdf71 100644
--- a/drivers/ata/pata_bf54x.c
+++ b/drivers/ata/pata_bf54x.c
@@ -418,14 +418,6 @@ static void bfin_set_dmamode(struct ata_port *ap, struct ata_device *adev)
 					(tcyc_tdvs<<8 | tdvs));
 				ATAPI_SET_ULTRA_TIM_2(base, (tmli<<8 | tss));
 				ATAPI_SET_ULTRA_TIM_3(base, (trp<<8 | tzah));
-
-				/* Enable host ATAPI Untra DMA interrupts */
-				ATAPI_SET_INT_MASK(base,
-					ATAPI_GET_INT_MASK(base)
-					| UDMAIN_DONE_MASK
-					| UDMAOUT_DONE_MASK
-					| UDMAIN_TERM_MASK
-					| UDMAOUT_TERM_MASK);
 			}
 		}
 	}
@@ -470,10 +462,6 @@ static void bfin_set_dmamode(struct ata_port *ap, struct ata_device *adev)
 			ATAPI_SET_MULTI_TIM_0(base, (tm<<8 | td));
 			ATAPI_SET_MULTI_TIM_1(base, (tkr<<8 | tkw));
 			ATAPI_SET_MULTI_TIM_2(base, (teoc<<8 | th));
-
-			/* Enable host ATAPI Multi DMA interrupts */
-			ATAPI_SET_INT_MASK(base, ATAPI_GET_INT_MASK(base)
-				| MULTI_DONE_MASK | MULTI_TERM_MASK);
 			SSYNC();
 		}
 	}
@@ -1153,15 +1141,11 @@ static unsigned char bfin_bmdma_status(struct ata_port *ap)
 {
 	unsigned char host_stat = 0;
 	void __iomem *base = (void __iomem *)ap->ioaddr.ctl_addr;
-	unsigned short int_status = ATAPI_GET_INT_STATUS(base);
 
-	if (ATAPI_GET_STATUS(base) & (MULTI_XFER_ON|ULTRA_XFER_ON))
+	if (ATAPI_GET_STATUS(base) & (MULTI_XFER_ON | ULTRA_XFER_ON))
 		host_stat |= ATA_DMA_ACTIVE;
-	if (int_status & (MULTI_DONE_INT|UDMAIN_DONE_INT|UDMAOUT_DONE_INT|
-		ATAPI_DEV_INT))
+	if (ATAPI_GET_INT_STATUS(base) & ATAPI_DEV_INT)
 		host_stat |= ATA_DMA_INTR;
-	if (int_status & (MULTI_TERM_INT|UDMAIN_TERM_INT|UDMAOUT_TERM_INT))
-		host_stat |= ATA_DMA_ERR|ATA_DMA_INTR;
 
 	dev_dbg(ap->dev, "ATAPI: host_stat=0x%x\n", host_stat);
 
diff --git a/drivers/ata/pata_cs5536.c b/drivers/ata/pata_cs5536.c
index 628c8fae5937..7a402c75ab90 100644
--- a/drivers/ata/pata_cs5536.c
+++ b/drivers/ata/pata_cs5536.c
@@ -1,6 +1,7 @@
 /*
  * pata_cs5536.c	- CS5536 PATA for new ATA layer
  *			  (C) 2007 Martin K. Petersen <mkp@mkp.net>
+ *			  (C) 2011 Bartlomiej Zolnierkiewicz
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -55,24 +56,16 @@ MODULE_PARM_DESC(msr, "Force using MSR to configure IDE function (Default: 0)");
 #define DRV_VERSION	"0.0.8"
 
 enum {
-	CFG			= 0,
-	DTC			= 1,
-	CAST			= 2,
-	ETC			= 3,
-
-	MSR_IDE_BASE		= 0x51300000,
-	MSR_IDE_CFG		= (MSR_IDE_BASE + 0x10),
-	MSR_IDE_DTC		= (MSR_IDE_BASE + 0x12),
-	MSR_IDE_CAST		= (MSR_IDE_BASE + 0x13),
-	MSR_IDE_ETC		= (MSR_IDE_BASE + 0x14),
-
+	MSR_IDE_CFG		= 0x51300010,
 	PCI_IDE_CFG		= 0x40,
-	PCI_IDE_DTC		= 0x48,
-	PCI_IDE_CAST		= 0x4c,
-	PCI_IDE_ETC		= 0x50,
 
-	IDE_CFG_CHANEN		= 0x2,
-	IDE_CFG_CABLE		= 0x10000,
+	CFG			= 0,
+	DTC			= 2,
+	CAST			= 3,
+	ETC			= 4,
+
+	IDE_CFG_CHANEN		= (1 << 1),
+	IDE_CFG_CABLE		= (1 << 17) | (1 << 16),
 
 	IDE_D0_SHIFT		= 24,
 	IDE_D1_SHIFT		= 16,
@@ -84,45 +77,50 @@ enum {
 	IDE_CAST_CMD_MASK	= 0xff,
 	IDE_CAST_CMD_SHIFT	= 24,
 
-	IDE_ETC_NODMA		= 0x03,
-};
-
-static const u32 msr_reg[4] = {
-	MSR_IDE_CFG, MSR_IDE_DTC, MSR_IDE_CAST, MSR_IDE_ETC,
-};
-
-static const u8 pci_reg[4] = {
-	PCI_IDE_CFG, PCI_IDE_DTC, PCI_IDE_CAST, PCI_IDE_ETC,
+	IDE_ETC_UDMA_MASK	= 0xc0,
 };
 
-static inline int cs5536_read(struct pci_dev *pdev, int reg, u32 *val)
+static int cs5536_read(struct pci_dev *pdev, int reg, u32 *val)
 {
 	if (unlikely(use_msr)) {
 		u32 dummy __maybe_unused;
 
-		rdmsr(msr_reg[reg], *val, dummy);
+		rdmsr(MSR_IDE_CFG + reg, *val, dummy);
 		return 0;
 	}
 
-	return pci_read_config_dword(pdev, pci_reg[reg], val);
+	return pci_read_config_dword(pdev, PCI_IDE_CFG + reg * 4, val);
 }
 
-static inline int cs5536_write(struct pci_dev *pdev, int reg, int val)
+static int cs5536_write(struct pci_dev *pdev, int reg, int val)
 {
 	if (unlikely(use_msr)) {
-		wrmsr(msr_reg[reg], val, 0);
+		wrmsr(MSR_IDE_CFG + reg, val, 0);
 		return 0;
 	}
 
-	return pci_write_config_dword(pdev, pci_reg[reg], val);
+	return pci_write_config_dword(pdev, PCI_IDE_CFG + reg * 4, val);
+}
+
+static void cs5536_program_dtc(struct ata_device *adev, u8 tim)
+{
+	struct pci_dev *pdev = to_pci_dev(adev->link->ap->host->dev);
+	int dshift = adev->devno ? IDE_D1_SHIFT : IDE_D0_SHIFT;
+	u32 dtc;
+
+	cs5536_read(pdev, DTC, &dtc);
+	dtc &= ~(IDE_DRV_MASK << dshift);
+	dtc |= tim << dshift;
+	cs5536_write(pdev, DTC, dtc);
 }
 
 /**
  *	cs5536_cable_detect	-	detect cable type
  *	@ap: Port to detect on
  *
- *	Perform cable detection for ATA66 capable cable. Return a libata
- *	cable type.
+ *	Perform cable detection for ATA66 capable cable.
+ *
+ *	Returns a cable type.
  */
 
 static int cs5536_cable_detect(struct ata_port *ap)
@@ -132,7 +130,7 @@ static int cs5536_cable_detect(struct ata_port *ap)
 
 	cs5536_read(pdev, CFG, &cfg);
 
-	if (cfg & (IDE_CFG_CABLE << ap->port_no))
+	if (cfg & IDE_CFG_CABLE)
 		return ATA_CBL_PATA80;
 	else
 		return ATA_CBL_PATA40;
@@ -162,19 +160,15 @@ static void cs5536_set_piomode(struct ata_port *ap, struct ata_device *adev)
 	struct ata_device *pair = ata_dev_pair(adev);
 	int mode = adev->pio_mode - XFER_PIO_0;
 	int cmdmode = mode;
-	int dshift = adev->devno ? IDE_D1_SHIFT : IDE_D0_SHIFT;
 	int cshift = adev->devno ? IDE_CAST_D1_SHIFT : IDE_CAST_D0_SHIFT;
-	u32 dtc, cast, etc;
+	u32 cast;
 
 	if (pair)
 		cmdmode = min(mode, pair->pio_mode - XFER_PIO_0);
 
-	cs5536_read(pdev, DTC, &dtc);
-	cs5536_read(pdev, CAST, &cast);
-	cs5536_read(pdev, ETC, &etc);
+	cs5536_program_dtc(adev, drv_timings[mode]);
 
-	dtc &= ~(IDE_DRV_MASK << dshift);
-	dtc |= drv_timings[mode] << dshift;
+	cs5536_read(pdev, CAST, &cast);
 
 	cast &= ~(IDE_CAST_DRV_MASK << cshift);
 	cast |= addr_timings[mode] << cshift;
@@ -182,12 +176,7 @@ static void cs5536_set_piomode(struct ata_port *ap, struct ata_device *adev)
 	cast &= ~(IDE_CAST_CMD_MASK << IDE_CAST_CMD_SHIFT);
 	cast |= cmd_timings[cmdmode] << IDE_CAST_CMD_SHIFT;
 
-	etc &= ~(IDE_DRV_MASK << dshift);
-	etc |= IDE_ETC_NODMA << dshift;
-
-	cs5536_write(pdev, DTC, dtc);
 	cs5536_write(pdev, CAST, cast);
-	cs5536_write(pdev, ETC, etc);
 }
 
 /**
@@ -208,25 +197,21 @@ static void cs5536_set_dmamode(struct ata_port *ap, struct ata_device *adev)
 	};
 
 	struct pci_dev *pdev = to_pci_dev(ap->host->dev);
-	u32 dtc, etc;
+	u32 etc;
 	int mode = adev->dma_mode;
 	int dshift = adev->devno ? IDE_D1_SHIFT : IDE_D0_SHIFT;
 
-	if (mode >= XFER_UDMA_0) {
-		cs5536_read(pdev, ETC, &etc);
+	cs5536_read(pdev, ETC, &etc);
 
+	if (mode >= XFER_UDMA_0) {
 		etc &= ~(IDE_DRV_MASK << dshift);
 		etc |= udma_timings[mode - XFER_UDMA_0] << dshift;
-
-		cs5536_write(pdev, ETC, etc);
 	} else { /* MWDMA */
-		cs5536_read(pdev, DTC, &dtc);
-
-		dtc &= ~(IDE_DRV_MASK << dshift);
-		dtc |= mwdma_timings[mode - XFER_MW_DMA_0] << dshift;
-
-		cs5536_write(pdev, DTC, dtc);
+		etc &= ~(IDE_ETC_UDMA_MASK << dshift);
+		cs5536_program_dtc(adev, mwdma_timings[mode - XFER_MW_DMA_0]);
 	}
+
+	cs5536_write(pdev, ETC, etc);
 }
 
 static struct scsi_host_template cs5536_sht = {
diff --git a/drivers/ata/pata_imx.c b/drivers/ata/pata_imx.c
index ca9d9caedfa3..c5af97f5107b 100644
--- a/drivers/ata/pata_imx.c
+++ b/drivers/ata/pata_imx.c
@@ -235,17 +235,7 @@ static struct platform_driver pata_imx_driver = {
 	},
 };
 
-static int __init pata_imx_init(void)
-{
-	return platform_driver_register(&pata_imx_driver);
-}
-
-static void __exit pata_imx_exit(void)
-{
-	platform_driver_unregister(&pata_imx_driver);
-}
-module_init(pata_imx_init);
-module_exit(pata_imx_exit);
+module_platform_driver(pata_imx_driver);
 
 MODULE_AUTHOR("Arnaud Patard <arnaud.patard@rtp-net.org>");
 MODULE_DESCRIPTION("low-level driver for iMX PATA");
diff --git a/drivers/ata/pata_ixp4xx_cf.c b/drivers/ata/pata_ixp4xx_cf.c
index 15b64311fe0a..badb1789a918 100644
--- a/drivers/ata/pata_ixp4xx_cf.c
+++ b/drivers/ata/pata_ixp4xx_cf.c
@@ -205,21 +205,10 @@ static struct platform_driver ixp4xx_pata_platform_driver = {
 	.remove		= __devexit_p(ixp4xx_pata_remove),
 };
 
-static int __init ixp4xx_pata_init(void)
-{
-	return platform_driver_register(&ixp4xx_pata_platform_driver);
-}
-
-static void __exit ixp4xx_pata_exit(void)
-{
-	platform_driver_unregister(&ixp4xx_pata_platform_driver);
-}
+module_platform_driver(ixp4xx_pata_platform_driver);
 
 MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
 MODULE_DESCRIPTION("low-level driver for ixp4xx Compact Flash PATA");
 MODULE_LICENSE("GPL");
 MODULE_VERSION(DRV_VERSION);
 MODULE_ALIAS("platform:" DRV_NAME);
-
-module_init(ixp4xx_pata_init);
-module_exit(ixp4xx_pata_exit);
diff --git a/drivers/ata/pata_mpc52xx.c b/drivers/ata/pata_mpc52xx.c
index 3e1746314f22..00748ae1a016 100644
--- a/drivers/ata/pata_mpc52xx.c
+++ b/drivers/ata/pata_mpc52xx.c
@@ -897,26 +897,7 @@ static struct platform_driver mpc52xx_ata_of_platform_driver = {
 	},
 };
 
-
-/* ======================================================================== */
-/* Module                                                                   */
-/* ======================================================================== */
-
-static int __init
-mpc52xx_ata_init(void)
-{
-	printk(KERN_INFO "ata: MPC52xx IDE/ATA libata driver\n");
-	return platform_driver_register(&mpc52xx_ata_of_platform_driver);
-}
-
-static void __exit
-mpc52xx_ata_exit(void)
-{
-	platform_driver_unregister(&mpc52xx_ata_of_platform_driver);
-}
-
-module_init(mpc52xx_ata_init);
-module_exit(mpc52xx_ata_exit);
+module_platform_driver(mpc52xx_ata_of_platform_driver);
 
 MODULE_AUTHOR("Sylvain Munaut <tnt@246tNt.com>");
 MODULE_DESCRIPTION("Freescale MPC52xx IDE/ATA libata driver");
diff --git a/drivers/ata/pata_of_platform.c b/drivers/ata/pata_of_platform.c
index 2a472c5bb7db..1654dc27e7f8 100644
--- a/drivers/ata/pata_of_platform.c
+++ b/drivers/ata/pata_of_platform.c
@@ -12,8 +12,7 @@
 #include <linux/kernel.h>
 #include <linux/module.h>
 #include <linux/of_address.h>
-#include <linux/of_irq.h>
-#include <linux/of_platform.h>
+#include <linux/platform_device.h>
 #include <linux/ata_platform.h>
 
 static int __devinit pata_of_platform_probe(struct platform_device *ofdev)
@@ -22,7 +21,7 @@ static int __devinit pata_of_platform_probe(struct platform_device *ofdev)
 	struct device_node *dn = ofdev->dev.of_node;
 	struct resource io_res;
 	struct resource ctl_res;
-	struct resource irq_res;
+	struct resource *irq_res;
 	unsigned int reg_shift = 0;
 	int pio_mode = 0;
 	int pio_mask;
@@ -51,11 +50,9 @@ static int __devinit pata_of_platform_probe(struct platform_device *ofdev)
 		}
 	}
 
-	ret = of_irq_to_resource(dn, 0, &irq_res);
-	if (!ret)
-		irq_res.start = irq_res.end = 0;
-	else
-		irq_res.flags = 0;
+	irq_res = platform_get_resource(ofdev, IORESOURCE_IRQ, 0);
+	if (irq_res)
+		irq_res->flags = 0;
 
 	prop = of_get_property(dn, "reg-shift", NULL);
 	if (prop)
@@ -75,7 +72,7 @@ static int __devinit pata_of_platform_probe(struct platform_device *ofdev)
 	pio_mask = 1 << pio_mode;
 	pio_mask |= (1 << pio_mode) - 1;
 
-	return __pata_platform_probe(&ofdev->dev, &io_res, &ctl_res, &irq_res,
+	return __pata_platform_probe(&ofdev->dev, &io_res, &ctl_res, irq_res,
 				     reg_shift, pio_mask);
 }
 
@@ -101,17 +98,7 @@ static struct platform_driver pata_of_platform_driver = {
 	.remove		= __devexit_p(pata_of_platform_remove),
 };
 
-static int __init pata_of_platform_init(void)
-{
-	return platform_driver_register(&pata_of_platform_driver);
-}
-module_init(pata_of_platform_init);
-
-static void __exit pata_of_platform_exit(void)
-{
-	platform_driver_unregister(&pata_of_platform_driver);
-}
-module_exit(pata_of_platform_exit);
+module_platform_driver(pata_of_platform_driver);
 
 MODULE_DESCRIPTION("OF-platform PATA driver");
 MODULE_AUTHOR("Anton Vorontsov <avorontsov@ru.mvista.com>");
diff --git a/drivers/ata/pata_palmld.c b/drivers/ata/pata_palmld.c
index b86d7e22595e..5ff31b68135c 100644
--- a/drivers/ata/pata_palmld.c
+++ b/drivers/ata/pata_palmld.c
@@ -132,20 +132,9 @@ static struct platform_driver palmld_pata_platform_driver = {
 	.remove		= __devexit_p(palmld_pata_remove),
 };
 
-static int __init palmld_pata_init(void)
-{
-	return platform_driver_register(&palmld_pata_platform_driver);
-}
-
-static void __exit palmld_pata_exit(void)
-{
-	platform_driver_unregister(&palmld_pata_platform_driver);
-}
+module_platform_driver(palmld_pata_platform_driver);
 
 MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
 MODULE_DESCRIPTION("PalmLD PATA driver");
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("platform:" DRV_NAME);
-
-module_init(palmld_pata_init);
-module_exit(palmld_pata_exit);
diff --git a/drivers/ata/pata_platform.c b/drivers/ata/pata_platform.c
index 2067308f683f..f1848aeda783 100644
--- a/drivers/ata/pata_platform.c
+++ b/drivers/ata/pata_platform.c
@@ -256,17 +256,7 @@ static struct platform_driver pata_platform_driver = {
 	},
 };
 
-static int __init pata_platform_init(void)
-{
-	return platform_driver_register(&pata_platform_driver);
-}
-
-static void __exit pata_platform_exit(void)
-{
-	platform_driver_unregister(&pata_platform_driver);
-}
-module_init(pata_platform_init);
-module_exit(pata_platform_exit);
+module_platform_driver(pata_platform_driver);
 
 module_param(pio_mask, int, 0);
 
diff --git a/drivers/ata/pata_pxa.c b/drivers/ata/pata_pxa.c
index b4ede40f8ae1..0bb0fb7b26bc 100644
--- a/drivers/ata/pata_pxa.c
+++ b/drivers/ata/pata_pxa.c
@@ -390,18 +390,7 @@ static struct platform_driver pxa_ata_driver = {
 	},
 };
 
-static int __init pxa_ata_init(void)
-{
-	return platform_driver_register(&pxa_ata_driver);
-}
-
-static void __exit pxa_ata_exit(void)
-{
-	platform_driver_unregister(&pxa_ata_driver);
-}
-
-module_init(pxa_ata_init);
-module_exit(pxa_ata_exit);
+module_platform_driver(pxa_ata_driver);
 
 MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
 MODULE_DESCRIPTION("DMA-capable driver for PATA on PXA CPU");
diff --git a/drivers/ata/pata_rb532_cf.c b/drivers/ata/pata_rb532_cf.c
index 1b9d10d9c5d9..9417101bd5ca 100644
--- a/drivers/ata/pata_rb532_cf.c
+++ b/drivers/ata/pata_rb532_cf.c
@@ -188,9 +188,6 @@ static __devexit int rb532_pata_driver_remove(struct platform_device *pdev)
 	return 0;
 }
 
-/* work with hotplug and coldplug */
-MODULE_ALIAS("platform:" DRV_NAME);
-
 static struct platform_driver rb532_pata_platform_driver = {
 	.probe		= rb532_pata_driver_probe,
 	.remove		= __devexit_p(rb532_pata_driver_remove),
@@ -200,27 +197,13 @@ static struct platform_driver rb532_pata_platform_driver = {
 	},
 };
 
-/* ------------------------------------------------------------------------ */
-
 #define DRV_INFO DRV_DESC " version " DRV_VERSION
 
-static int __init rb532_pata_module_init(void)
-{
-	printk(KERN_INFO DRV_INFO "\n");
-
-	return platform_driver_register(&rb532_pata_platform_driver);
-}
-
-static void __exit rb532_pata_module_exit(void)
-{
-	platform_driver_unregister(&rb532_pata_platform_driver);
-}
+module_platform_driver(rb532_pata_platform_driver);
 
 MODULE_AUTHOR("Gabor Juhos <juhosg at openwrt.org>");
 MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
 MODULE_DESCRIPTION(DRV_DESC);
 MODULE_VERSION(DRV_VERSION);
 MODULE_LICENSE("GPL");
-
-module_init(rb532_pata_module_init);
-module_exit(rb532_pata_module_exit);
+MODULE_ALIAS("platform:" DRV_NAME);
diff --git a/drivers/ata/sata_dwc_460ex.c b/drivers/ata/sata_dwc_460ex.c
index 5c4237452f50..69f7cde49c6b 100644
--- a/drivers/ata/sata_dwc_460ex.c
+++ b/drivers/ata/sata_dwc_460ex.c
@@ -1777,18 +1777,7 @@ static struct platform_driver sata_dwc_driver = {
 	.remove = sata_dwc_remove,
 };
 
-static int __init sata_dwc_init(void)
-{
-	return platform_driver_register(&sata_dwc_driver);
-}
-
-static void __exit sata_dwc_exit(void)
-{
-	platform_driver_unregister(&sata_dwc_driver);
-}
-
-module_init(sata_dwc_init);
-module_exit(sata_dwc_exit);
+module_platform_driver(sata_dwc_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Mark Miesfeld <mmiesfeld@amcc.com>");
diff --git a/drivers/ata/sata_fsl.c b/drivers/ata/sata_fsl.c
index 78ae7b67b09e..5a2c95ba050a 100644
--- a/drivers/ata/sata_fsl.c
+++ b/drivers/ata/sata_fsl.c
@@ -1452,21 +1452,9 @@ static struct platform_driver fsl_sata_driver = {
 #endif
 };
 
-static int __init sata_fsl_init(void)
-{
-	platform_driver_register(&fsl_sata_driver);
-	return 0;
-}
-
-static void __exit sata_fsl_exit(void)
-{
-	platform_driver_unregister(&fsl_sata_driver);
-}
+module_platform_driver(fsl_sata_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Ashish Kalra, Freescale Semiconductor");
 MODULE_DESCRIPTION("Freescale 3.0Gbps SATA controller low level driver");
 MODULE_VERSION("1.10");
-
-module_init(sata_fsl_init);
-module_exit(sata_fsl_exit);
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index 0b8b8b488ee8..38950ea8398a 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -3988,7 +3988,7 @@ static int mv_create_dma_pools(struct mv_host_priv *hpriv, struct device *dev)
 }
 
 static void mv_conf_mbus_windows(struct mv_host_priv *hpriv,
-				 struct mbus_dram_target_info *dram)
+				 const struct mbus_dram_target_info *dram)
 {
 	int i;
 
@@ -3998,7 +3998,7 @@ static void mv_conf_mbus_windows(struct mv_host_priv *hpriv,
 	}
 
 	for (i = 0; i < dram->num_cs; i++) {
-		struct mbus_dram_window *cs = dram->cs + i;
+		const struct mbus_dram_window *cs = dram->cs + i;
 
 		writel(((cs->size - 1) & 0xffff0000) |
 			(cs->mbus_attr << 8) |
@@ -4019,6 +4019,7 @@ static void mv_conf_mbus_windows(struct mv_host_priv *hpriv,
 static int mv_platform_probe(struct platform_device *pdev)
 {
 	const struct mv_sata_platform_data *mv_platform_data;
+	const struct mbus_dram_target_info *dram;
 	const struct ata_port_info *ppi[] =
 	    { &mv_port_info[chip_soc], NULL };
 	struct ata_host *host;
@@ -4072,8 +4073,9 @@ static int mv_platform_probe(struct platform_device *pdev)
 	/*
 	 * (Re-)program MBUS remapping windows if we are asked to.
 	 */
-	if (mv_platform_data->dram != NULL)
-		mv_conf_mbus_windows(hpriv, mv_platform_data->dram);
+	dram = mv_mbus_dram_info();
+	if (dram)
+		mv_conf_mbus_windows(hpriv, dram);
 
 	rc = mv_create_dma_pools(hpriv, &pdev->dev);
 	if (rc)
@@ -4141,17 +4143,18 @@ static int mv_platform_suspend(struct platform_device *pdev, pm_message_t state)
 static int mv_platform_resume(struct platform_device *pdev)
 {
 	struct ata_host *host = platform_get_drvdata(pdev);
+	const struct mbus_dram_target_info *dram;
 	int ret;
 
 	if (host) {
 		struct mv_host_priv *hpriv = host->private_data;
-		const struct mv_sata_platform_data *mv_platform_data = \
-			pdev->dev.platform_data;
+
 		/*
 		 * (Re-)program MBUS remapping windows if we are asked to.
 		 */
-		if (mv_platform_data->dram != NULL)
-			mv_conf_mbus_windows(hpriv, mv_platform_data->dram);
+		dram = mv_mbus_dram_info();
+		if (dram)
+			mv_conf_mbus_windows(hpriv, dram);
 
 		/* initialize adapter */
 		ret = mv_init_host(host);
diff --git a/drivers/block/xen-blkback/xenbus.c b/drivers/block/xen-blkback/xenbus.c
index 8069322e4c9e..37c794d31264 100644
--- a/drivers/block/xen-blkback/xenbus.c
+++ b/drivers/block/xen-blkback/xenbus.c
@@ -787,17 +787,14 @@ static const struct xenbus_device_id xen_blkbk_ids[] = {
 };
 
 
-static struct xenbus_driver xen_blkbk = {
-	.name = "vbd",
-	.owner = THIS_MODULE,
-	.ids = xen_blkbk_ids,
+static DEFINE_XENBUS_DRIVER(xen_blkbk, ,
 	.probe = xen_blkbk_probe,
 	.remove = xen_blkbk_remove,
 	.otherend_changed = frontend_changed
-};
+);
 
 
 int xen_blkif_xenbus_init(void)
 {
-	return xenbus_register_backend(&xen_blkbk);
+	return xenbus_register_backend(&xen_blkbk_driver);
 }
diff --git a/drivers/block/xen-blkfront.c b/drivers/block/xen-blkfront.c
index 7b2ec5908413..9fd3ee203b1e 100644
--- a/drivers/block/xen-blkfront.c
+++ b/drivers/block/xen-blkfront.c
@@ -1437,16 +1437,13 @@ static const struct xenbus_device_id blkfront_ids[] = {
 	{ "" }
 };
 
-static struct xenbus_driver blkfront = {
-	.name = "vbd",
-	.owner = THIS_MODULE,
-	.ids = blkfront_ids,
+static DEFINE_XENBUS_DRIVER(blkfront, ,
 	.probe = blkfront_probe,
 	.remove = blkfront_remove,
 	.resume = blkfront_resume,
 	.otherend_changed = blkback_changed,
 	.is_ready = blkfront_is_ready,
-};
+);
 
 static int __init xlblk_init(void)
 {
@@ -1461,7 +1458,7 @@ static int __init xlblk_init(void)
 		return -ENODEV;
 	}
 
-	ret = xenbus_register_frontend(&blkfront);
+	ret = xenbus_register_frontend(&blkfront_driver);
 	if (ret) {
 		unregister_blkdev(XENVBD_MAJOR, DEV_NAME);
 		return ret;
@@ -1474,7 +1471,7 @@ module_init(xlblk_init);
 
 static void __exit xlblk_exit(void)
 {
-	return xenbus_unregister_driver(&blkfront);
+	return xenbus_unregister_driver(&blkfront_driver);
 }
 module_exit(xlblk_exit);
 
diff --git a/drivers/block/xsysace.c b/drivers/block/xsysace.c
index fb1975d82a73..1a17e338735e 100644
--- a/drivers/block/xsysace.c
+++ b/drivers/block/xsysace.c
@@ -456,7 +456,7 @@ static inline void ace_fsm_yieldirq(struct ace_device *ace)
 {
 	dev_dbg(ace->dev, "ace_fsm_yieldirq()\n");
 
-	if (ace->irq == NO_IRQ)
+	if (!ace->irq)
 		/* No IRQ assigned, so need to poll */
 		tasklet_schedule(&ace->fsm_tasklet);
 	ace->fsm_continue_flag = 0;
@@ -1034,12 +1034,12 @@ static int __devinit ace_setup(struct ace_device *ace)
 		ACE_CTRL_DATABUFRDYIRQ | ACE_CTRL_ERRORIRQ);
 
 	/* Now we can hook up the irq handler */
-	if (ace->irq != NO_IRQ) {
+	if (ace->irq) {
 		rc = request_irq(ace->irq, ace_interrupt, 0, "systemace", ace);
 		if (rc) {
 			/* Failure - fall back to polled mode */
 			dev_err(ace->dev, "request_irq failed\n");
-			ace->irq = NO_IRQ;
+			ace->irq = 0;
 		}
 	}
 
@@ -1086,7 +1086,7 @@ static void __devexit ace_teardown(struct ace_device *ace)
 
 	tasklet_kill(&ace->fsm_tasklet);
 
-	if (ace->irq != NO_IRQ)
+	if (ace->irq)
 		free_irq(ace->irq, ace);
 
 	iounmap(ace->baseaddr);
@@ -1156,7 +1156,7 @@ static int __devinit ace_probe(struct platform_device *dev)
 	resource_size_t physaddr = 0;
 	int bus_width = ACE_BUS_WIDTH_16; /* FIXME: should not be hard coded */
 	u32 id = dev->id;
-	int irq = NO_IRQ;
+	int irq = 0;
 	int i;
 
 	dev_dbg(&dev->dev, "ace_probe(%p)\n", dev);
diff --git a/drivers/char/agp/generic.c b/drivers/char/agp/generic.c
index b072648dc3f6..17e05d1076b3 100644
--- a/drivers/char/agp/generic.c
+++ b/drivers/char/agp/generic.c
@@ -514,12 +514,12 @@ static void agp_v2_parse_one(u32 *requested_mode, u32 *bridge_agpstat, u32 *vga_
 	switch (*bridge_agpstat & 7) {
 	case 4:
 		*bridge_agpstat |= (AGPSTAT2_2X | AGPSTAT2_1X);
-		printk(KERN_INFO PFX "BIOS bug. AGP bridge claims to only support x4 rate"
+		printk(KERN_INFO PFX "BIOS bug. AGP bridge claims to only support x4 rate. "
 			"Fixing up support for x2 & x1\n");
 		break;
 	case 2:
 		*bridge_agpstat |= AGPSTAT2_1X;
-		printk(KERN_INFO PFX "BIOS bug. AGP bridge claims to only support x2 rate"
+		printk(KERN_INFO PFX "BIOS bug. AGP bridge claims to only support x2 rate. "
 			"Fixing up support for x1\n");
 		break;
 	default:
@@ -693,7 +693,7 @@ static void agp_v3_parse_one(u32 *requested_mode, u32 *bridge_agpstat, u32 *vga_
 			*bridge_agpstat &= ~(AGPSTAT3_4X | AGPSTAT3_RSVD);
 			*vga_agpstat &= ~(AGPSTAT3_4X | AGPSTAT3_RSVD);
 		} else {
-			printk(KERN_INFO PFX "Fell back to AGPx4 mode because");
+			printk(KERN_INFO PFX "Fell back to AGPx4 mode because ");
 			if (!(*bridge_agpstat & AGPSTAT3_8X)) {
 				printk(KERN_INFO PFX "bridge couldn't do x8. bridge_agpstat:%x (orig=%x)\n",
 					*bridge_agpstat, origbridge);
@@ -956,7 +956,7 @@ int agp_generic_create_gatt_table(struct agp_bridge_data *bridge)
 	bridge->driver->cache_flush();
 #ifdef CONFIG_X86
 	if (set_memory_uc((unsigned long)table, 1 << page_order))
-		printk(KERN_WARNING "Could not set GATT table memory to UC!");
+		printk(KERN_WARNING "Could not set GATT table memory to UC!\n");
 
 	bridge->gatt_table = (void *)table;
 #else
diff --git a/drivers/clk/Kconfig b/drivers/clk/Kconfig
index 35309274ad68..9b3cd08cd0ed 100644
--- a/drivers/clk/Kconfig
+++ b/drivers/clk/Kconfig
@@ -3,5 +3,8 @@ config CLKDEV_LOOKUP
 	bool
 	select HAVE_CLK
 
+config HAVE_CLK_PREPARE
+	bool
+
 config HAVE_MACH_CLKDEV
 	bool
diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c
index 9a353c2216d0..e779b434af45 100644
--- a/drivers/dma/mv_xor.c
+++ b/drivers/dma/mv_xor.c
@@ -1250,7 +1250,7 @@ static int __devinit mv_xor_probe(struct platform_device *pdev)
 
 static void
 mv_xor_conf_mbus_windows(struct mv_xor_shared_private *msp,
-			 struct mbus_dram_target_info *dram)
+			 const struct mbus_dram_target_info *dram)
 {
 	void __iomem *base = msp->xor_base;
 	u32 win_enable = 0;
@@ -1264,7 +1264,7 @@ mv_xor_conf_mbus_windows(struct mv_xor_shared_private *msp,
 	}
 
 	for (i = 0; i < dram->num_cs; i++) {
-		struct mbus_dram_window *cs = dram->cs + i;
+		const struct mbus_dram_window *cs = dram->cs + i;
 
 		writel((cs->base & 0xffff0000) |
 		       (cs->mbus_attr << 8) |
@@ -1290,7 +1290,7 @@ static struct platform_driver mv_xor_driver = {
 
 static int mv_xor_shared_probe(struct platform_device *pdev)
 {
-	struct mv_xor_platform_shared_data *msd = pdev->dev.platform_data;
+	const struct mbus_dram_target_info *dram;
 	struct mv_xor_shared_private *msp;
 	struct resource *res;
 
@@ -1323,8 +1323,9 @@ static int mv_xor_shared_probe(struct platform_device *pdev)
 	/*
 	 * (Re-)program MBUS remapping windows if we are asked to.
 	 */
-	if (msd != NULL && msd->dram != NULL)
-		mv_xor_conf_mbus_windows(msp, msd->dram);
+	dram = mv_mbus_dram_info();
+	if (dram)
+		mv_xor_conf_mbus_windows(msp, dram);
 
 	return 0;
 }
diff --git a/drivers/dma/mxs-dma.c b/drivers/dma/mxs-dma.c
index b4588bdd98bb..fc903c0ed234 100644
--- a/drivers/dma/mxs-dma.c
+++ b/drivers/dma/mxs-dma.c
@@ -334,7 +334,7 @@ static int mxs_dma_alloc_chan_resources(struct dma_chan *chan)
 			goto err_irq;
 	}
 
-	ret = clk_enable(mxs_dma->clk);
+	ret = clk_prepare_enable(mxs_dma->clk);
 	if (ret)
 		goto err_clk;
 
@@ -372,7 +372,7 @@ static void mxs_dma_free_chan_resources(struct dma_chan *chan)
 	dma_free_coherent(mxs_dma->dma_device.dev, PAGE_SIZE,
 			mxs_chan->ccw, mxs_chan->ccw_phys);
 
-	clk_disable(mxs_dma->clk);
+	clk_disable_unprepare(mxs_dma->clk);
 }
 
 static struct dma_async_tx_descriptor *mxs_dma_prep_slave_sg(
@@ -578,7 +578,7 @@ static int __init mxs_dma_init(struct mxs_dma_engine *mxs_dma)
 {
 	int ret;
 
-	ret = clk_enable(mxs_dma->clk);
+	ret = clk_prepare_enable(mxs_dma->clk);
 	if (ret)
 		goto err_out;
 
@@ -604,7 +604,7 @@ static int __init mxs_dma_init(struct mxs_dma_engine *mxs_dma)
 	writel(MXS_DMA_CHANNELS_MASK << MXS_DMA_CHANNELS,
 		mxs_dma->base + HW_APBHX_CTRL1 + MXS_SET_ADDR);
 
-	clk_disable(mxs_dma->clk);
+	clk_disable_unprepare(mxs_dma->clk);
 
 	return 0;
 
diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index 2d8d1b041d95..09adcfcd953e 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -19,6 +19,7 @@
 #include <linux/amba/pl330.h>
 #include <linux/pm_runtime.h>
 #include <linux/scatterlist.h>
+#include <linux/of.h>
 
 #define NR_DEFAULT_DESC	16
 
@@ -116,6 +117,9 @@ struct dma_pl330_desc {
 	struct dma_pl330_chan *pchan;
 };
 
+/* forward declaration */
+static struct amba_driver pl330_driver;
+
 static inline struct dma_pl330_chan *
 to_pchan(struct dma_chan *ch)
 {
@@ -267,6 +271,32 @@ static void dma_pl330_rqcb(void *token, enum pl330_op_err err)
 	tasklet_schedule(&pch->task);
 }
 
+bool pl330_filter(struct dma_chan *chan, void *param)
+{
+	u8 *peri_id;
+
+	if (chan->device->dev->driver != &pl330_driver.drv)
+		return false;
+
+#ifdef CONFIG_OF
+	if (chan->device->dev->of_node) {
+		const __be32 *prop_value;
+		phandle phandle;
+		struct device_node *node;
+
+		prop_value = ((struct property *)param)->value;
+		phandle = be32_to_cpup(prop_value++);
+		node = of_find_node_by_phandle(phandle);
+		return ((chan->private == node) &&
+				(chan->chan_id == be32_to_cpup(prop_value)));
+	}
+#endif
+
+	peri_id = chan->private;
+	return *peri_id == (unsigned)param;
+}
+EXPORT_SYMBOL(pl330_filter);
+
 static int pl330_alloc_chan_resources(struct dma_chan *chan)
 {
 	struct dma_pl330_chan *pch = to_pchan(chan);
@@ -497,7 +527,7 @@ pluck_desc(struct dma_pl330_dmac *pdmac)
 static struct dma_pl330_desc *pl330_get_desc(struct dma_pl330_chan *pch)
 {
 	struct dma_pl330_dmac *pdmac = pch->dmac;
-	struct dma_pl330_peri *peri = pch->chan.private;
+	u8 *peri_id = pch->chan.private;
 	struct dma_pl330_desc *desc;
 
 	/* Pluck one desc from the pool of DMAC */
@@ -522,13 +552,7 @@ static struct dma_pl330_desc *pl330_get_desc(struct dma_pl330_chan *pch)
 	desc->txd.cookie = 0;
 	async_tx_ack(&desc->txd);
 
-	if (peri) {
-		desc->req.rqtype = peri->rqtype;
-		desc->req.peri = pch->chan.chan_id;
-	} else {
-		desc->req.rqtype = MEMTOMEM;
-		desc->req.peri = 0;
-	}
+	desc->req.peri = peri_id ? pch->chan.chan_id : 0;
 
 	dma_async_tx_descriptor_init(&desc->txd, &pch->chan);
 
@@ -615,12 +639,14 @@ static struct dma_async_tx_descriptor *pl330_prep_dma_cyclic(
 	case DMA_TO_DEVICE:
 		desc->rqcfg.src_inc = 1;
 		desc->rqcfg.dst_inc = 0;
+		desc->req.rqtype = MEMTODEV;
 		src = dma_addr;
 		dst = pch->fifo_addr;
 		break;
 	case DMA_FROM_DEVICE:
 		desc->rqcfg.src_inc = 0;
 		desc->rqcfg.dst_inc = 1;
+		desc->req.rqtype = DEVTOMEM;
 		src = pch->fifo_addr;
 		dst = dma_addr;
 		break;
@@ -646,16 +672,12 @@ pl330_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dst,
 {
 	struct dma_pl330_desc *desc;
 	struct dma_pl330_chan *pch = to_pchan(chan);
-	struct dma_pl330_peri *peri = chan->private;
 	struct pl330_info *pi;
 	int burst;
 
 	if (unlikely(!pch || !len))
 		return NULL;
 
-	if (peri && peri->rqtype != MEMTOMEM)
-		return NULL;
-
 	pi = &pch->dmac->pif;
 
 	desc = __pl330_prep_dma_memcpy(pch, dst, src, len);
@@ -664,6 +686,7 @@ pl330_prep_dma_memcpy(struct dma_chan *chan, dma_addr_t dst,
 
 	desc->rqcfg.src_inc = 1;
 	desc->rqcfg.dst_inc = 1;
+	desc->req.rqtype = MEMTOMEM;
 
 	/* Select max possible burst size */
 	burst = pi->pcfg.data_bus_width / 8;
@@ -692,25 +715,14 @@ pl330_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
 {
 	struct dma_pl330_desc *first, *desc = NULL;
 	struct dma_pl330_chan *pch = to_pchan(chan);
-	struct dma_pl330_peri *peri = chan->private;
 	struct scatterlist *sg;
 	unsigned long flags;
 	int i;
 	dma_addr_t addr;
 
-	if (unlikely(!pch || !sgl || !sg_len || !peri))
+	if (unlikely(!pch || !sgl || !sg_len))
 		return NULL;
 
-	/* Make sure the direction is consistent */
-	if ((direction == DMA_TO_DEVICE &&
-				peri->rqtype != MEMTODEV) ||
-			(direction == DMA_FROM_DEVICE &&
-				peri->rqtype != DEVTOMEM)) {
-		dev_err(pch->dmac->pif.dev, "%s:%d Invalid Direction\n",
-				__func__, __LINE__);
-		return NULL;
-	}
-
 	addr = pch->fifo_addr;
 
 	first = NULL;
@@ -750,11 +762,13 @@ pl330_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
 		if (direction == DMA_TO_DEVICE) {
 			desc->rqcfg.src_inc = 1;
 			desc->rqcfg.dst_inc = 0;
+			desc->req.rqtype = MEMTODEV;
 			fill_px(&desc->px,
 				addr, sg_dma_address(sg), sg_dma_len(sg));
 		} else {
 			desc->rqcfg.src_inc = 0;
 			desc->rqcfg.dst_inc = 1;
+			desc->req.rqtype = DEVTOMEM;
 			fill_px(&desc->px,
 				sg_dma_address(sg), addr, sg_dma_len(sg));
 		}
@@ -856,32 +870,16 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id)
 	INIT_LIST_HEAD(&pd->channels);
 
 	/* Initialize channel parameters */
-	num_chan = max(pdat ? pdat->nr_valid_peri : 0, (u8)pi->pcfg.num_chan);
+	num_chan = max(pdat ? pdat->nr_valid_peri : (u8)pi->pcfg.num_peri,
+			(u8)pi->pcfg.num_chan);
 	pdmac->peripherals = kzalloc(num_chan * sizeof(*pch), GFP_KERNEL);
 
 	for (i = 0; i < num_chan; i++) {
 		pch = &pdmac->peripherals[i];
-		if (pdat) {
-			struct dma_pl330_peri *peri = &pdat->peri[i];
-
-			switch (peri->rqtype) {
-			case MEMTOMEM:
-				dma_cap_set(DMA_MEMCPY, pd->cap_mask);
-				break;
-			case MEMTODEV:
-			case DEVTOMEM:
-				dma_cap_set(DMA_SLAVE, pd->cap_mask);
-				dma_cap_set(DMA_CYCLIC, pd->cap_mask);
-				break;
-			default:
-				dev_err(&adev->dev, "DEVTODEV Not Supported\n");
-				continue;
-			}
-			pch->chan.private = peri;
-		} else {
-			dma_cap_set(DMA_MEMCPY, pd->cap_mask);
-			pch->chan.private = NULL;
-		}
+		if (!adev->dev.of_node)
+			pch->chan.private = pdat ? &pdat->peri_id[i] : NULL;
+		else
+			pch->chan.private = adev->dev.of_node;
 
 		INIT_LIST_HEAD(&pch->work_list);
 		spin_lock_init(&pch->lock);
@@ -894,6 +892,15 @@ pl330_probe(struct amba_device *adev, const struct amba_id *id)
 	}
 
 	pd->dev = &adev->dev;
+	if (pdat) {
+		pd->cap_mask = pdat->cap_mask;
+	} else {
+		dma_cap_set(DMA_MEMCPY, pd->cap_mask);
+		if (pi->pcfg.num_peri) {
+			dma_cap_set(DMA_SLAVE, pd->cap_mask);
+			dma_cap_set(DMA_CYCLIC, pd->cap_mask);
+		}
+	}
 
 	pd->device_alloc_chan_resources = pl330_alloc_chan_resources;
 	pd->device_free_chan_resources = pl330_free_chan_resources;
diff --git a/drivers/gpio/Kconfig b/drivers/gpio/Kconfig
index 5099681cf503..573532f7553e 100644
--- a/drivers/gpio/Kconfig
+++ b/drivers/gpio/Kconfig
@@ -141,6 +141,12 @@ config GPIO_PL061
 	help
 	  Say yes here to support the PrimeCell PL061 GPIO device
 
+config GPIO_PXA
+	bool "PXA GPIO support"
+	depends on ARCH_PXA || ARCH_MMP
+	help
+	  Say yes here to support the PXA GPIO device
+
 config GPIO_XILINX
 	bool "Xilinx GPIO support"
 	depends on PPC_OF || MICROBLAZE
@@ -170,15 +176,6 @@ config GPIO_SCH
 	  The Intel Tunnel Creek processor has 5 GPIOs powered by the
 	  core power rail and 9 from suspend power supply.
 
-config GPIO_U300
-	bool "ST-Ericsson U300 COH 901 335/571 GPIO"
-	depends on GPIOLIB && ARCH_U300
-	help
-	  Say yes here to support GPIO interface on ST-Ericsson U300.
-	  The names of the two IP block variants supported are
-	  COH 901 335 and COH 901 571/3. They contain 3, 5 or 7
-	  ports of 8 GPIO pins each.
-
 config GPIO_VX855
 	tristate "VIA VX855/VX875 GPIO"
 	depends on PCI
diff --git a/drivers/gpio/Makefile b/drivers/gpio/Makefile
index 4e018d6a7639..62e641e79e8f 100644
--- a/drivers/gpio/Makefile
+++ b/drivers/gpio/Makefile
@@ -40,7 +40,7 @@ obj-$(CONFIG_GPIO_PCA953X)	+= gpio-pca953x.o
 obj-$(CONFIG_GPIO_PCF857X)	+= gpio-pcf857x.o
 obj-$(CONFIG_GPIO_PCH)		+= gpio-pch.o
 obj-$(CONFIG_GPIO_PL061)	+= gpio-pl061.o
-obj-$(CONFIG_PLAT_PXA)		+= gpio-pxa.o
+obj-$(CONFIG_GPIO_PXA)		+= gpio-pxa.o
 obj-$(CONFIG_GPIO_RDC321X)	+= gpio-rdc321x.o
 obj-$(CONFIG_PLAT_SAMSUNG)	+= gpio-samsung.o
 obj-$(CONFIG_ARCH_SA1100)	+= gpio-sa1100.o
@@ -54,7 +54,6 @@ obj-$(CONFIG_ARCH_DAVINCI_TNETV107X) += gpio-tnetv107x.o
 obj-$(CONFIG_GPIO_TPS65910)	+= gpio-tps65910.o
 obj-$(CONFIG_GPIO_TPS65912)	+= gpio-tps65912.o
 obj-$(CONFIG_GPIO_TWL4030)	+= gpio-twl4030.o
-obj-$(CONFIG_MACH_U300)		+= gpio-u300.o
 obj-$(CONFIG_GPIO_UCB1400)	+= gpio-ucb1400.o
 obj-$(CONFIG_GPIO_VR41XX)	+= gpio-vr41xx.o
 obj-$(CONFIG_GPIO_VX855)	+= gpio-vx855.o
diff --git a/drivers/gpio/gpio-pxa.c b/drivers/gpio/gpio-pxa.c
index ee137712f9db..b2d3ee1d183a 100644
--- a/drivers/gpio/gpio-pxa.c
+++ b/drivers/gpio/gpio-pxa.c
@@ -11,14 +11,46 @@
  *  it under the terms of the GNU General Public License version 2 as
  *  published by the Free Software Foundation.
  */
+#include <linux/clk.h>
+#include <linux/err.h>
 #include <linux/gpio.h>
+#include <linux/gpio-pxa.h>
 #include <linux/init.h>
 #include <linux/irq.h>
 #include <linux/io.h>
+#include <linux/platform_device.h>
 #include <linux/syscore_ops.h>
 #include <linux/slab.h>
 
-#include <mach/gpio-pxa.h>
+/*
+ * We handle the GPIOs by banks, each bank covers up to 32 GPIOs with
+ * one set of registers. The register offsets are organized below:
+ *
+ *           GPLR    GPDR    GPSR    GPCR    GRER    GFER    GEDR
+ * BANK 0 - 0x0000  0x000C  0x0018  0x0024  0x0030  0x003C  0x0048
+ * BANK 1 - 0x0004  0x0010  0x001C  0x0028  0x0034  0x0040  0x004C
+ * BANK 2 - 0x0008  0x0014  0x0020  0x002C  0x0038  0x0044  0x0050
+ *
+ * BANK 3 - 0x0100  0x010C  0x0118  0x0124  0x0130  0x013C  0x0148
+ * BANK 4 - 0x0104  0x0110  0x011C  0x0128  0x0134  0x0140  0x014C
+ * BANK 5 - 0x0108  0x0114  0x0120  0x012C  0x0138  0x0144  0x0150
+ *
+ * NOTE:
+ *   BANK 3 is only available on PXA27x and later processors.
+ *   BANK 4 and 5 are only available on PXA935
+ */
+
+#define GPLR_OFFSET	0x00
+#define GPDR_OFFSET	0x0C
+#define GPSR_OFFSET	0x18
+#define GPCR_OFFSET	0x24
+#define GRER_OFFSET	0x30
+#define GFER_OFFSET	0x3C
+#define GEDR_OFFSET	0x48
+#define GAFR_OFFSET	0x54
+#define ED_MASK_OFFSET	0x9C	/* GPIO edge detection for AP side */
+
+#define BANK_OFF(n)	(((n) < 3) ? (n) << 2 : 0x100 + (((n) - 3) << 2))
 
 int pxa_last_gpio;
 
@@ -39,8 +71,20 @@ struct pxa_gpio_chip {
 #endif
 };
 
+enum {
+	PXA25X_GPIO = 0,
+	PXA26X_GPIO,
+	PXA27X_GPIO,
+	PXA3XX_GPIO,
+	PXA93X_GPIO,
+	MMP_GPIO = 0x10,
+	MMP2_GPIO,
+};
+
 static DEFINE_SPINLOCK(gpio_lock);
 static struct pxa_gpio_chip *pxa_gpio_chips;
+static int gpio_type;
+static void __iomem *gpio_reg_base;
 
 #define for_each_gpio_chip(i, c)			\
 	for (i = 0, c = &pxa_gpio_chips[0]; i <= pxa_last_gpio; i += 32, c++)
@@ -55,6 +99,122 @@ static inline struct pxa_gpio_chip *gpio_to_pxachip(unsigned gpio)
 	return &pxa_gpio_chips[gpio_to_bank(gpio)];
 }
 
+static inline int gpio_is_pxa_type(int type)
+{
+	return (type & MMP_GPIO) == 0;
+}
+
+static inline int gpio_is_mmp_type(int type)
+{
+	return (type & MMP_GPIO) != 0;
+}
+
+/* GPIO86/87/88/89 on PXA26x have their direction bits in PXA_GPDR(2 inverted,
+ * as well as their Alternate Function value being '1' for GPIO in GAFRx.
+ */
+static inline int __gpio_is_inverted(int gpio)
+{
+	if ((gpio_type == PXA26X_GPIO) && (gpio > 85))
+		return 1;
+	return 0;
+}
+
+/*
+ * On PXA25x and PXA27x, GAFRx and GPDRx together decide the alternate
+ * function of a GPIO, and GPDRx cannot be altered once configured. It
+ * is attributed as "occupied" here (I know this terminology isn't
+ * accurate, you are welcome to propose a better one :-)
+ */
+static inline int __gpio_is_occupied(unsigned gpio)
+{
+	struct pxa_gpio_chip *pxachip;
+	void __iomem *base;
+	unsigned long gafr = 0, gpdr = 0;
+	int ret, af = 0, dir = 0;
+
+	pxachip = gpio_to_pxachip(gpio);
+	base = gpio_chip_base(&pxachip->chip);
+	gpdr = readl_relaxed(base + GPDR_OFFSET);
+
+	switch (gpio_type) {
+	case PXA25X_GPIO:
+	case PXA26X_GPIO:
+	case PXA27X_GPIO:
+		gafr = readl_relaxed(base + GAFR_OFFSET);
+		af = (gafr >> ((gpio & 0xf) * 2)) & 0x3;
+		dir = gpdr & GPIO_bit(gpio);
+
+		if (__gpio_is_inverted(gpio))
+			ret = (af != 1) || (dir == 0);
+		else
+			ret = (af != 0) || (dir != 0);
+		break;
+	default:
+		ret = gpdr & GPIO_bit(gpio);
+		break;
+	}
+	return ret;
+}
+
+#ifdef CONFIG_ARCH_PXA
+static inline int __pxa_gpio_to_irq(int gpio)
+{
+	if (gpio_is_pxa_type(gpio_type))
+		return PXA_GPIO_TO_IRQ(gpio);
+	return -1;
+}
+
+static inline int __pxa_irq_to_gpio(int irq)
+{
+	if (gpio_is_pxa_type(gpio_type))
+		return irq - PXA_GPIO_TO_IRQ(0);
+	return -1;
+}
+#else
+static inline int __pxa_gpio_to_irq(int gpio) { return -1; }
+static inline int __pxa_irq_to_gpio(int irq) { return -1; }
+#endif
+
+#ifdef CONFIG_ARCH_MMP
+static inline int __mmp_gpio_to_irq(int gpio)
+{
+	if (gpio_is_mmp_type(gpio_type))
+		return MMP_GPIO_TO_IRQ(gpio);
+	return -1;
+}
+
+static inline int __mmp_irq_to_gpio(int irq)
+{
+	if (gpio_is_mmp_type(gpio_type))
+		return irq - MMP_GPIO_TO_IRQ(0);
+	return -1;
+}
+#else
+static inline int __mmp_gpio_to_irq(int gpio) { return -1; }
+static inline int __mmp_irq_to_gpio(int irq) { return -1; }
+#endif
+
+static int pxa_gpio_to_irq(struct gpio_chip *chip, unsigned offset)
+{
+	int gpio, ret;
+
+	gpio = chip->base + offset;
+	ret = __pxa_gpio_to_irq(gpio);
+	if (ret >= 0)
+		return ret;
+	return __mmp_gpio_to_irq(gpio);
+}
+
+int pxa_irq_to_gpio(int irq)
+{
+	int ret;
+
+	ret = __pxa_irq_to_gpio(irq);
+	if (ret >= 0)
+		return ret;
+	return __mmp_irq_to_gpio(irq);
+}
+
 static int pxa_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
 {
 	void __iomem *base = gpio_chip_base(chip);
@@ -63,12 +223,12 @@ static int pxa_gpio_direction_input(struct gpio_chip *chip, unsigned offset)
 
 	spin_lock_irqsave(&gpio_lock, flags);
 
-	value = __raw_readl(base + GPDR_OFFSET);
+	value = readl_relaxed(base + GPDR_OFFSET);
 	if (__gpio_is_inverted(chip->base + offset))
 		value |= mask;
 	else
 		value &= ~mask;
-	__raw_writel(value, base + GPDR_OFFSET);
+	writel_relaxed(value, base + GPDR_OFFSET);
 
 	spin_unlock_irqrestore(&gpio_lock, flags);
 	return 0;
@@ -81,16 +241,16 @@ static int pxa_gpio_direction_output(struct gpio_chip *chip,
 	uint32_t tmp, mask = 1 << offset;
 	unsigned long flags;
 
-	__raw_writel(mask, base + (value ? GPSR_OFFSET : GPCR_OFFSET));
+	writel_relaxed(mask, base + (value ? GPSR_OFFSET : GPCR_OFFSET));
 
 	spin_lock_irqsave(&gpio_lock, flags);
 
-	tmp = __raw_readl(base + GPDR_OFFSET);
+	tmp = readl_relaxed(base + GPDR_OFFSET);
 	if (__gpio_is_inverted(chip->base + offset))
 		tmp &= ~mask;
 	else
 		tmp |= mask;
-	__raw_writel(tmp, base + GPDR_OFFSET);
+	writel_relaxed(tmp, base + GPDR_OFFSET);
 
 	spin_unlock_irqrestore(&gpio_lock, flags);
 	return 0;
@@ -98,16 +258,16 @@ static int pxa_gpio_direction_output(struct gpio_chip *chip,
 
 static int pxa_gpio_get(struct gpio_chip *chip, unsigned offset)
 {
-	return __raw_readl(gpio_chip_base(chip) + GPLR_OFFSET) & (1 << offset);
+	return readl_relaxed(gpio_chip_base(chip) + GPLR_OFFSET) & (1 << offset);
 }
 
 static void pxa_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
 {
-	__raw_writel(1 << offset, gpio_chip_base(chip) +
+	writel_relaxed(1 << offset, gpio_chip_base(chip) +
 				(value ? GPSR_OFFSET : GPCR_OFFSET));
 }
 
-static int __init pxa_init_gpio_chip(int gpio_end)
+static int __devinit pxa_init_gpio_chip(int gpio_end)
 {
 	int i, gpio, nbanks = gpio_to_bank(gpio_end) + 1;
 	struct pxa_gpio_chip *chips;
@@ -122,7 +282,7 @@ static int __init pxa_init_gpio_chip(int gpio_end)
 		struct gpio_chip *c = &chips[i].chip;
 
 		sprintf(chips[i].label, "gpio-%d", i);
-		chips[i].regbase = GPIO_BANK(i);
+		chips[i].regbase = gpio_reg_base + BANK_OFF(i);
 
 		c->base  = gpio;
 		c->label = chips[i].label;
@@ -131,6 +291,7 @@ static int __init pxa_init_gpio_chip(int gpio_end)
 		c->direction_output = pxa_gpio_direction_output;
 		c->get = pxa_gpio_get;
 		c->set = pxa_gpio_set;
+		c->to_irq = pxa_gpio_to_irq;
 
 		/* number of GPIOs on last bank may be less than 32 */
 		c->ngpio = (gpio + 31 > gpio_end) ? (gpio_end - gpio + 1) : 32;
@@ -147,18 +308,18 @@ static inline void update_edge_detect(struct pxa_gpio_chip *c)
 {
 	uint32_t grer, gfer;
 
-	grer = __raw_readl(c->regbase + GRER_OFFSET) & ~c->irq_mask;
-	gfer = __raw_readl(c->regbase + GFER_OFFSET) & ~c->irq_mask;
+	grer = readl_relaxed(c->regbase + GRER_OFFSET) & ~c->irq_mask;
+	gfer = readl_relaxed(c->regbase + GFER_OFFSET) & ~c->irq_mask;
 	grer |= c->irq_edge_rise & c->irq_mask;
 	gfer |= c->irq_edge_fall & c->irq_mask;
-	__raw_writel(grer, c->regbase + GRER_OFFSET);
-	__raw_writel(gfer, c->regbase + GFER_OFFSET);
+	writel_relaxed(grer, c->regbase + GRER_OFFSET);
+	writel_relaxed(gfer, c->regbase + GFER_OFFSET);
 }
 
 static int pxa_gpio_irq_type(struct irq_data *d, unsigned int type)
 {
 	struct pxa_gpio_chip *c;
-	int gpio = irq_to_gpio(d->irq);
+	int gpio = pxa_irq_to_gpio(d->irq);
 	unsigned long gpdr, mask = GPIO_bit(gpio);
 
 	c = gpio_to_pxachip(gpio);
@@ -176,12 +337,12 @@ static int pxa_gpio_irq_type(struct irq_data *d, unsigned int type)
 		type = IRQ_TYPE_EDGE_RISING | IRQ_TYPE_EDGE_FALLING;
 	}
 
-	gpdr = __raw_readl(c->regbase + GPDR_OFFSET);
+	gpdr = readl_relaxed(c->regbase + GPDR_OFFSET);
 
 	if (__gpio_is_inverted(gpio))
-		__raw_writel(gpdr | mask,  c->regbase + GPDR_OFFSET);
+		writel_relaxed(gpdr | mask,  c->regbase + GPDR_OFFSET);
 	else
-		__raw_writel(gpdr & ~mask, c->regbase + GPDR_OFFSET);
+		writel_relaxed(gpdr & ~mask, c->regbase + GPDR_OFFSET);
 
 	if (type & IRQ_TYPE_EDGE_RISING)
 		c->irq_edge_rise |= mask;
@@ -212,9 +373,9 @@ static void pxa_gpio_demux_handler(unsigned int irq, struct irq_desc *desc)
 		for_each_gpio_chip(gpio, c) {
 			gpio_base = c->chip.base;
 
-			gedr = __raw_readl(c->regbase + GEDR_OFFSET);
+			gedr = readl_relaxed(c->regbase + GEDR_OFFSET);
 			gedr = gedr & c->irq_mask;
-			__raw_writel(gedr, c->regbase + GEDR_OFFSET);
+			writel_relaxed(gedr, c->regbase + GEDR_OFFSET);
 
 			n = find_first_bit(&gedr, BITS_PER_LONG);
 			while (n < BITS_PER_LONG) {
@@ -229,29 +390,29 @@ static void pxa_gpio_demux_handler(unsigned int irq, struct irq_desc *desc)
 
 static void pxa_ack_muxed_gpio(struct irq_data *d)
 {
-	int gpio = irq_to_gpio(d->irq);
+	int gpio = pxa_irq_to_gpio(d->irq);
 	struct pxa_gpio_chip *c = gpio_to_pxachip(gpio);
 
-	__raw_writel(GPIO_bit(gpio), c->regbase + GEDR_OFFSET);
+	writel_relaxed(GPIO_bit(gpio), c->regbase + GEDR_OFFSET);
 }
 
 static void pxa_mask_muxed_gpio(struct irq_data *d)
 {
-	int gpio = irq_to_gpio(d->irq);
+	int gpio = pxa_irq_to_gpio(d->irq);
 	struct pxa_gpio_chip *c = gpio_to_pxachip(gpio);
 	uint32_t grer, gfer;
 
 	c->irq_mask &= ~GPIO_bit(gpio);
 
-	grer = __raw_readl(c->regbase + GRER_OFFSET) & ~GPIO_bit(gpio);
-	gfer = __raw_readl(c->regbase + GFER_OFFSET) & ~GPIO_bit(gpio);
-	__raw_writel(grer, c->regbase + GRER_OFFSET);
-	__raw_writel(gfer, c->regbase + GFER_OFFSET);
+	grer = readl_relaxed(c->regbase + GRER_OFFSET) & ~GPIO_bit(gpio);
+	gfer = readl_relaxed(c->regbase + GFER_OFFSET) & ~GPIO_bit(gpio);
+	writel_relaxed(grer, c->regbase + GRER_OFFSET);
+	writel_relaxed(gfer, c->regbase + GFER_OFFSET);
 }
 
 static void pxa_unmask_muxed_gpio(struct irq_data *d)
 {
-	int gpio = irq_to_gpio(d->irq);
+	int gpio = pxa_irq_to_gpio(d->irq);
 	struct pxa_gpio_chip *c = gpio_to_pxachip(gpio);
 
 	c->irq_mask |= GPIO_bit(gpio);
@@ -266,34 +427,143 @@ static struct irq_chip pxa_muxed_gpio_chip = {
 	.irq_set_type	= pxa_gpio_irq_type,
 };
 
-void __init pxa_init_gpio(int mux_irq, int start, int end, set_wake_t fn)
+static int pxa_gpio_nums(void)
 {
-	struct pxa_gpio_chip *c;
-	int gpio, irq;
+	int count = 0;
+
+#ifdef CONFIG_ARCH_PXA
+	if (cpu_is_pxa25x()) {
+#ifdef CONFIG_CPU_PXA26x
+		count = 89;
+		gpio_type = PXA26X_GPIO;
+#elif defined(CONFIG_PXA25x)
+		count = 84;
+		gpio_type = PXA26X_GPIO;
+#endif /* CONFIG_CPU_PXA26x */
+	} else if (cpu_is_pxa27x()) {
+		count = 120;
+		gpio_type = PXA27X_GPIO;
+	} else if (cpu_is_pxa93x() || cpu_is_pxa95x()) {
+		count = 191;
+		gpio_type = PXA93X_GPIO;
+	} else if (cpu_is_pxa3xx()) {
+		count = 127;
+		gpio_type = PXA3XX_GPIO;
+	}
+#endif /* CONFIG_ARCH_PXA */
+
+#ifdef CONFIG_ARCH_MMP
+	if (cpu_is_pxa168() || cpu_is_pxa910()) {
+		count = 127;
+		gpio_type = MMP_GPIO;
+	} else if (cpu_is_mmp2()) {
+		count = 191;
+		gpio_type = MMP2_GPIO;
+	}
+#endif /* CONFIG_ARCH_MMP */
+	return count;
+}
 
-	pxa_last_gpio = end;
+static int __devinit pxa_gpio_probe(struct platform_device *pdev)
+{
+	struct pxa_gpio_chip *c;
+	struct resource *res;
+	struct clk *clk;
+	int gpio, irq, ret;
+	int irq0 = 0, irq1 = 0, irq_mux, gpio_offset = 0;
+
+	pxa_last_gpio = pxa_gpio_nums();
+	if (!pxa_last_gpio)
+		return -EINVAL;
+
+	irq0 = platform_get_irq_byname(pdev, "gpio0");
+	irq1 = platform_get_irq_byname(pdev, "gpio1");
+	irq_mux = platform_get_irq_byname(pdev, "gpio_mux");
+	if ((irq0 > 0 && irq1 <= 0) || (irq0 <= 0 && irq1 > 0)
+		|| (irq_mux <= 0))
+		return -EINVAL;
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res)
+		return -EINVAL;
+	gpio_reg_base = ioremap(res->start, resource_size(res));
+	if (!gpio_reg_base)
+		return -EINVAL;
+
+	if (irq0 > 0)
+		gpio_offset = 2;
+
+	clk = clk_get(&pdev->dev, NULL);
+	if (IS_ERR(clk)) {
+		dev_err(&pdev->dev, "Error %ld to get gpio clock\n",
+			PTR_ERR(clk));
+		iounmap(gpio_reg_base);
+		return PTR_ERR(clk);
+	}
+	ret = clk_prepare(clk);
+	if (ret) {
+		clk_put(clk);
+		iounmap(gpio_reg_base);
+		return ret;
+	}
+	ret = clk_enable(clk);
+	if (ret) {
+		clk_unprepare(clk);
+		clk_put(clk);
+		iounmap(gpio_reg_base);
+		return ret;
+	}
 
 	/* Initialize GPIO chips */
-	pxa_init_gpio_chip(end);
+	pxa_init_gpio_chip(pxa_last_gpio);
 
 	/* clear all GPIO edge detects */
 	for_each_gpio_chip(gpio, c) {
-		__raw_writel(0, c->regbase + GFER_OFFSET);
-		__raw_writel(0, c->regbase + GRER_OFFSET);
-		__raw_writel(~0,c->regbase + GEDR_OFFSET);
+		writel_relaxed(0, c->regbase + GFER_OFFSET);
+		writel_relaxed(0, c->regbase + GRER_OFFSET);
+		writel_relaxed(~0,c->regbase + GEDR_OFFSET);
+		/* unmask GPIO edge detect for AP side */
+		if (gpio_is_mmp_type(gpio_type))
+			writel_relaxed(~0, c->regbase + ED_MASK_OFFSET);
 	}
 
-	for (irq  = gpio_to_irq(start); irq <= gpio_to_irq(end); irq++) {
+#ifdef CONFIG_ARCH_PXA
+	irq = gpio_to_irq(0);
+	irq_set_chip_and_handler(irq, &pxa_muxed_gpio_chip,
+				 handle_edge_irq);
+	set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
+	irq_set_chained_handler(IRQ_GPIO0, pxa_gpio_demux_handler);
+
+	irq = gpio_to_irq(1);
+	irq_set_chip_and_handler(irq, &pxa_muxed_gpio_chip,
+				 handle_edge_irq);
+	set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
+	irq_set_chained_handler(IRQ_GPIO1, pxa_gpio_demux_handler);
+#endif
+
+	for (irq  = gpio_to_irq(gpio_offset);
+		irq <= gpio_to_irq(pxa_last_gpio); irq++) {
 		irq_set_chip_and_handler(irq, &pxa_muxed_gpio_chip,
 					 handle_edge_irq);
 		set_irq_flags(irq, IRQF_VALID | IRQF_PROBE);
 	}
 
-	/* Install handler for GPIO>=2 edge detect interrupts */
-	irq_set_chained_handler(mux_irq, pxa_gpio_demux_handler);
-	pxa_muxed_gpio_chip.irq_set_wake = fn;
+	irq_set_chained_handler(irq_mux, pxa_gpio_demux_handler);
+	return 0;
 }
 
+static struct platform_driver pxa_gpio_driver = {
+	.probe		= pxa_gpio_probe,
+	.driver		= {
+		.name	= "pxa-gpio",
+	},
+};
+
+static int __init pxa_gpio_init(void)
+{
+	return platform_driver_register(&pxa_gpio_driver);
+}
+postcore_initcall(pxa_gpio_init);
+
 #ifdef CONFIG_PM
 static int pxa_gpio_suspend(void)
 {
@@ -301,13 +571,13 @@ static int pxa_gpio_suspend(void)
 	int gpio;
 
 	for_each_gpio_chip(gpio, c) {
-		c->saved_gplr = __raw_readl(c->regbase + GPLR_OFFSET);
-		c->saved_gpdr = __raw_readl(c->regbase + GPDR_OFFSET);
-		c->saved_grer = __raw_readl(c->regbase + GRER_OFFSET);
-		c->saved_gfer = __raw_readl(c->regbase + GFER_OFFSET);
+		c->saved_gplr = readl_relaxed(c->regbase + GPLR_OFFSET);
+		c->saved_gpdr = readl_relaxed(c->regbase + GPDR_OFFSET);
+		c->saved_grer = readl_relaxed(c->regbase + GRER_OFFSET);
+		c->saved_gfer = readl_relaxed(c->regbase + GFER_OFFSET);
 
 		/* Clear GPIO transition detect bits */
-		__raw_writel(0xffffffff, c->regbase + GEDR_OFFSET);
+		writel_relaxed(0xffffffff, c->regbase + GEDR_OFFSET);
 	}
 	return 0;
 }
@@ -319,12 +589,12 @@ static void pxa_gpio_resume(void)
 
 	for_each_gpio_chip(gpio, c) {
 		/* restore level with set/clear */
-		__raw_writel( c->saved_gplr, c->regbase + GPSR_OFFSET);
-		__raw_writel(~c->saved_gplr, c->regbase + GPCR_OFFSET);
+		writel_relaxed( c->saved_gplr, c->regbase + GPSR_OFFSET);
+		writel_relaxed(~c->saved_gplr, c->regbase + GPCR_OFFSET);
 
-		__raw_writel(c->saved_grer, c->regbase + GRER_OFFSET);
-		__raw_writel(c->saved_gfer, c->regbase + GFER_OFFSET);
-		__raw_writel(c->saved_gpdr, c->regbase + GPDR_OFFSET);
+		writel_relaxed(c->saved_grer, c->regbase + GRER_OFFSET);
+		writel_relaxed(c->saved_gfer, c->regbase + GFER_OFFSET);
+		writel_relaxed(c->saved_gpdr, c->regbase + GPDR_OFFSET);
 	}
 }
 #else
@@ -336,3 +606,10 @@ struct syscore_ops pxa_gpio_syscore_ops = {
 	.suspend	= pxa_gpio_suspend,
 	.resume		= pxa_gpio_resume,
 };
+
+static int __init pxa_gpio_sysinit(void)
+{
+	register_syscore_ops(&pxa_gpio_syscore_ops);
+	return 0;
+}
+postcore_initcall(pxa_gpio_sysinit);
diff --git a/drivers/gpio/gpio-samsung.c b/drivers/gpio/gpio-samsung.c
index ab098ba9f1dd..a7661773c052 100644
--- a/drivers/gpio/gpio-samsung.c
+++ b/drivers/gpio/gpio-samsung.c
@@ -24,6 +24,9 @@
 #include <linux/interrupt.h>
 #include <linux/device.h>
 #include <linux/ioport.h>
+#include <linux/of.h>
+#include <linux/slab.h>
+#include <linux/of_address.h>
 
 #include <asm/irq.h>
 
@@ -2383,6 +2386,63 @@ static struct samsung_gpio_chip exynos4_gpios_3[] = {
 #endif
 };
 
+#if defined(CONFIG_ARCH_EXYNOS4) && defined(CONFIG_OF)
+static int exynos4_gpio_xlate(struct gpio_chip *gc, struct device_node *np,
+			      const void *gpio_spec, u32 *flags)
+{
+	const __be32 *gpio = gpio_spec;
+	const u32 n = be32_to_cpup(gpio);
+	unsigned int pin = gc->base + be32_to_cpu(gpio[0]);
+
+	if (WARN_ON(gc->of_gpio_n_cells < 4))
+		return -EINVAL;
+
+	if (n > gc->ngpio)
+		return -EINVAL;
+
+	if (s3c_gpio_cfgpin(pin, S3C_GPIO_SFN(be32_to_cpu(gpio[1]))))
+		pr_warn("gpio_xlate: failed to set pin function\n");
+	if (s3c_gpio_setpull(pin, be32_to_cpu(gpio[2])))
+		pr_warn("gpio_xlate: failed to set pin pull up/down\n");
+	if (s5p_gpio_set_drvstr(pin, be32_to_cpu(gpio[3])))
+		pr_warn("gpio_xlate: failed to set pin drive strength\n");
+
+	return n;
+}
+
+static const struct of_device_id exynos4_gpio_dt_match[] __initdata = {
+	{ .compatible = "samsung,exynos4-gpio", },
+	{}
+};
+
+static __init void exynos4_gpiolib_attach_ofnode(struct samsung_gpio_chip *chip,
+						 u64 base, u64 offset)
+{
+	struct gpio_chip *gc =  &chip->chip;
+	u64 address;
+
+	if (!of_have_populated_dt())
+		return;
+
+	address = chip->base ? base + ((u32)chip->base & 0xfff) : base + offset;
+	gc->of_node = of_find_matching_node_by_address(NULL,
+			exynos4_gpio_dt_match, address);
+	if (!gc->of_node) {
+		pr_info("gpio: device tree node not found for gpio controller"
+			" with base address %08llx\n", address);
+		return;
+	}
+	gc->of_gpio_n_cells = 4;
+	gc->of_xlate = exynos4_gpio_xlate;
+}
+#elif defined(CONFIG_ARCH_EXYNOS4)
+static __init void exynos4_gpiolib_attach_ofnode(struct samsung_gpio_chip *chip,
+						 u64 base, u64 offset)
+{
+	return;
+}
+#endif /* defined(CONFIG_ARCH_EXYNOS4) && defined(CONFIG_OF) */
+
 /* TODO: cleanup soc_is_* */
 static __init int samsung_gpiolib_init(void)
 {
@@ -2464,6 +2524,10 @@ static __init int samsung_gpiolib_init(void)
 				chip->config = &exynos4_gpio_cfg;
 				chip->group = group++;
 			}
+#ifdef CONFIG_CPU_EXYNOS4210
+			exynos4_gpiolib_attach_ofnode(chip,
+					EXYNOS4_PA_GPIO1, i * 0x20);
+#endif
 		}
 		samsung_gpiolib_add_4bit_chips(exynos4_gpios_1, nr_chips, S5P_VA_GPIO1);
 
@@ -2476,6 +2540,10 @@ static __init int samsung_gpiolib_init(void)
 				chip->config = &exynos4_gpio_cfg;
 				chip->group = group++;
 			}
+#ifdef CONFIG_CPU_EXYNOS4210
+			exynos4_gpiolib_attach_ofnode(chip,
+					EXYNOS4_PA_GPIO2, i * 0x20);
+#endif
 		}
 		samsung_gpiolib_add_4bit_chips(exynos4_gpios_2, nr_chips, S5P_VA_GPIO2);
 
@@ -2488,6 +2556,10 @@ static __init int samsung_gpiolib_init(void)
 				chip->config = &exynos4_gpio_cfg;
 				chip->group = group++;
 			}
+#ifdef CONFIG_CPU_EXYNOS4210
+			exynos4_gpiolib_attach_ofnode(chip,
+					EXYNOS4_PA_GPIO3, i * 0x20);
+#endif
 		}
 		samsung_gpiolib_add_4bit_chips(exynos4_gpios_3, nr_chips, S5P_VA_GPIO3);
 
diff --git a/drivers/gpu/drm/Kconfig b/drivers/gpu/drm/Kconfig
index 1368826ef284..2418429a9836 100644
--- a/drivers/gpu/drm/Kconfig
+++ b/drivers/gpu/drm/Kconfig
@@ -162,3 +162,6 @@ config DRM_SAVAGE
 source "drivers/gpu/drm/exynos/Kconfig"
 
 source "drivers/gpu/drm/vmwgfx/Kconfig"
+
+source "drivers/gpu/drm/gma500/Kconfig"
+
diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile
index c0496f660707..0cde1b80fdb1 100644
--- a/drivers/gpu/drm/Makefile
+++ b/drivers/gpu/drm/Makefile
@@ -9,7 +9,7 @@ drm-y       :=	drm_auth.o drm_buffer.o drm_bufs.o drm_cache.o \
 		drm_drv.o drm_fops.o drm_gem.o drm_ioctl.o drm_irq.o \
 		drm_lock.o drm_memory.o drm_proc.o drm_stub.o drm_vm.o \
 		drm_agpsupport.o drm_scatter.o ati_pcigart.o drm_pci.o \
-		drm_platform.o drm_sysfs.o drm_hashtab.o drm_sman.o drm_mm.o \
+		drm_platform.o drm_sysfs.o drm_hashtab.o drm_mm.o \
 		drm_crtc.o drm_modes.o drm_edid.o \
 		drm_info.o drm_debugfs.o drm_encoder_slave.o \
 		drm_trace_points.o drm_global.o drm_usb.o
@@ -36,4 +36,5 @@ obj-$(CONFIG_DRM_VMWGFX)+= vmwgfx/
 obj-$(CONFIG_DRM_VIA)	+=via/
 obj-$(CONFIG_DRM_NOUVEAU) +=nouveau/
 obj-$(CONFIG_DRM_EXYNOS) +=exynos/
+obj-$(CONFIG_DRM_GMA500) += gma500/
 obj-y			+= i2c/
diff --git a/drivers/gpu/drm/drm_context.c b/drivers/gpu/drm/drm_context.c
index 6d440fb894cf..325365f6d355 100644
--- a/drivers/gpu/drm/drm_context.c
+++ b/drivers/gpu/drm/drm_context.c
@@ -154,8 +154,6 @@ int drm_getsareactx(struct drm_device *dev, void *data,
 		return -EINVAL;
 	}
 
-	mutex_unlock(&dev->struct_mutex);
-
 	request->handle = NULL;
 	list_for_each_entry(_entry, &dev->maplist, head) {
 		if (_entry->map == map) {
@@ -164,6 +162,9 @@ int drm_getsareactx(struct drm_device *dev, void *data,
 			break;
 		}
 	}
+
+	mutex_unlock(&dev->struct_mutex);
+
 	if (request->handle == NULL)
 		return -EINVAL;
 
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 8323fc389840..5e818a808ace 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -36,6 +36,7 @@
 #include "drmP.h"
 #include "drm_crtc.h"
 #include "drm_edid.h"
+#include "drm_fourcc.h"
 
 struct drm_prop_enum_list {
 	int type;
@@ -324,6 +325,7 @@ void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
 {
 	struct drm_device *dev = fb->dev;
 	struct drm_crtc *crtc;
+	struct drm_plane *plane;
 	struct drm_mode_set set;
 	int ret;
 
@@ -340,6 +342,18 @@ void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
 		}
 	}
 
+	list_for_each_entry(plane, &dev->mode_config.plane_list, head) {
+		if (plane->fb == fb) {
+			/* should turn off the crtc */
+			ret = plane->funcs->disable_plane(plane);
+			if (ret)
+				DRM_ERROR("failed to disable plane with busy fb\n");
+			/* disconnect the plane from the fb and crtc: */
+			plane->fb = NULL;
+			plane->crtc = NULL;
+		}
+	}
+
 	drm_mode_object_put(dev, &fb->base);
 	list_del(&fb->head);
 	dev->mode_config.num_fb--;
@@ -540,6 +554,63 @@ void drm_encoder_cleanup(struct drm_encoder *encoder)
 }
 EXPORT_SYMBOL(drm_encoder_cleanup);
 
+int drm_plane_init(struct drm_device *dev, struct drm_plane *plane,
+		   unsigned long possible_crtcs,
+		   const struct drm_plane_funcs *funcs,
+		   const uint32_t *formats, uint32_t format_count,
+		   bool priv)
+{
+	mutex_lock(&dev->mode_config.mutex);
+
+	plane->dev = dev;
+	drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE);
+	plane->funcs = funcs;
+	plane->format_types = kmalloc(sizeof(uint32_t) * format_count,
+				      GFP_KERNEL);
+	if (!plane->format_types) {
+		DRM_DEBUG_KMS("out of memory when allocating plane\n");
+		drm_mode_object_put(dev, &plane->base);
+		mutex_unlock(&dev->mode_config.mutex);
+		return -ENOMEM;
+	}
+
+	memcpy(plane->format_types, formats, format_count * sizeof(uint32_t));
+	plane->format_count = format_count;
+	plane->possible_crtcs = possible_crtcs;
+
+	/* private planes are not exposed to userspace, but depending on
+	 * display hardware, might be convenient to allow sharing programming
+	 * for the scanout engine with the crtc implementation.
+	 */
+	if (!priv) {
+		list_add_tail(&plane->head, &dev->mode_config.plane_list);
+		dev->mode_config.num_plane++;
+	} else {
+		INIT_LIST_HEAD(&plane->head);
+	}
+
+	mutex_unlock(&dev->mode_config.mutex);
+
+	return 0;
+}
+EXPORT_SYMBOL(drm_plane_init);
+
+void drm_plane_cleanup(struct drm_plane *plane)
+{
+	struct drm_device *dev = plane->dev;
+
+	mutex_lock(&dev->mode_config.mutex);
+	kfree(plane->format_types);
+	drm_mode_object_put(dev, &plane->base);
+	/* if not added to a list, it must be a private plane */
+	if (!list_empty(&plane->head)) {
+		list_del(&plane->head);
+		dev->mode_config.num_plane--;
+	}
+	mutex_unlock(&dev->mode_config.mutex);
+}
+EXPORT_SYMBOL(drm_plane_cleanup);
+
 /**
  * drm_mode_create - create a new display mode
  * @dev: DRM device
@@ -871,6 +942,7 @@ void drm_mode_config_init(struct drm_device *dev)
 	INIT_LIST_HEAD(&dev->mode_config.encoder_list);
 	INIT_LIST_HEAD(&dev->mode_config.property_list);
 	INIT_LIST_HEAD(&dev->mode_config.property_blob_list);
+	INIT_LIST_HEAD(&dev->mode_config.plane_list);
 	idr_init(&dev->mode_config.crtc_idr);
 
 	mutex_lock(&dev->mode_config.mutex);
@@ -947,6 +1019,7 @@ void drm_mode_config_cleanup(struct drm_device *dev)
 	struct drm_encoder *encoder, *enct;
 	struct drm_framebuffer *fb, *fbt;
 	struct drm_property *property, *pt;
+	struct drm_plane *plane, *plt;
 
 	list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list,
 				 head) {
@@ -971,6 +1044,10 @@ void drm_mode_config_cleanup(struct drm_device *dev)
 		crtc->funcs->destroy(crtc);
 	}
 
+	list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list,
+				 head) {
+		plane->funcs->destroy(plane);
+	}
 }
 EXPORT_SYMBOL(drm_mode_config_cleanup);
 
@@ -1379,7 +1456,7 @@ int drm_mode_getconnector(struct drm_device *dev, void *data,
 	 */
 	if ((out_resp->count_modes >= mode_count) && mode_count) {
 		copied = 0;
-		mode_ptr = (struct drm_mode_modeinfo *)(unsigned long)out_resp->modes_ptr;
+		mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr;
 		list_for_each_entry(mode, &connector->modes, head) {
 			drm_crtc_convert_to_umode(&u_mode, mode);
 			if (copy_to_user(mode_ptr + copied,
@@ -1394,8 +1471,8 @@ int drm_mode_getconnector(struct drm_device *dev, void *data,
 
 	if ((out_resp->count_props >= props_count) && props_count) {
 		copied = 0;
-		prop_ptr = (uint32_t *)(unsigned long)(out_resp->props_ptr);
-		prop_values = (uint64_t *)(unsigned long)(out_resp->prop_values_ptr);
+		prop_ptr = (uint32_t __user *)(unsigned long)(out_resp->props_ptr);
+		prop_values = (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr);
 		for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) {
 			if (connector->property_ids[i] != 0) {
 				if (put_user(connector->property_ids[i],
@@ -1417,7 +1494,7 @@ int drm_mode_getconnector(struct drm_device *dev, void *data,
 
 	if ((out_resp->count_encoders >= encoders_count) && encoders_count) {
 		copied = 0;
-		encoder_ptr = (uint32_t *)(unsigned long)(out_resp->encoders_ptr);
+		encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr);
 		for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
 			if (connector->encoder_ids[i] != 0) {
 				if (put_user(connector->encoder_ids[i],
@@ -1471,6 +1548,245 @@ out:
 }
 
 /**
+ * drm_mode_getplane_res - get plane info
+ * @dev: DRM device
+ * @data: ioctl data
+ * @file_priv: DRM file info
+ *
+ * Return an plane count and set of IDs.
+ */
+int drm_mode_getplane_res(struct drm_device *dev, void *data,
+			    struct drm_file *file_priv)
+{
+	struct drm_mode_get_plane_res *plane_resp = data;
+	struct drm_mode_config *config;
+	struct drm_plane *plane;
+	uint32_t __user *plane_ptr;
+	int copied = 0, ret = 0;
+
+	if (!drm_core_check_feature(dev, DRIVER_MODESET))
+		return -EINVAL;
+
+	mutex_lock(&dev->mode_config.mutex);
+	config = &dev->mode_config;
+
+	/*
+	 * This ioctl is called twice, once to determine how much space is
+	 * needed, and the 2nd time to fill it.
+	 */
+	if (config->num_plane &&
+	    (plane_resp->count_planes >= config->num_plane)) {
+		plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr;
+
+		list_for_each_entry(plane, &config->plane_list, head) {
+			if (put_user(plane->base.id, plane_ptr + copied)) {
+				ret = -EFAULT;
+				goto out;
+			}
+			copied++;
+		}
+	}
+	plane_resp->count_planes = config->num_plane;
+
+out:
+	mutex_unlock(&dev->mode_config.mutex);
+	return ret;
+}
+
+/**
+ * drm_mode_getplane - get plane info
+ * @dev: DRM device
+ * @data: ioctl data
+ * @file_priv: DRM file info
+ *
+ * Return plane info, including formats supported, gamma size, any
+ * current fb, etc.
+ */
+int drm_mode_getplane(struct drm_device *dev, void *data,
+			struct drm_file *file_priv)
+{
+	struct drm_mode_get_plane *plane_resp = data;
+	struct drm_mode_object *obj;
+	struct drm_plane *plane;
+	uint32_t __user *format_ptr;
+	int ret = 0;
+
+	if (!drm_core_check_feature(dev, DRIVER_MODESET))
+		return -EINVAL;
+
+	mutex_lock(&dev->mode_config.mutex);
+	obj = drm_mode_object_find(dev, plane_resp->plane_id,
+				   DRM_MODE_OBJECT_PLANE);
+	if (!obj) {
+		ret = -ENOENT;
+		goto out;
+	}
+	plane = obj_to_plane(obj);
+
+	if (plane->crtc)
+		plane_resp->crtc_id = plane->crtc->base.id;
+	else
+		plane_resp->crtc_id = 0;
+
+	if (plane->fb)
+		plane_resp->fb_id = plane->fb->base.id;
+	else
+		plane_resp->fb_id = 0;
+
+	plane_resp->plane_id = plane->base.id;
+	plane_resp->possible_crtcs = plane->possible_crtcs;
+	plane_resp->gamma_size = plane->gamma_size;
+
+	/*
+	 * This ioctl is called twice, once to determine how much space is
+	 * needed, and the 2nd time to fill it.
+	 */
+	if (plane->format_count &&
+	    (plane_resp->count_format_types >= plane->format_count)) {
+		format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr;
+		if (copy_to_user(format_ptr,
+				 plane->format_types,
+				 sizeof(uint32_t) * plane->format_count)) {
+			ret = -EFAULT;
+			goto out;
+		}
+	}
+	plane_resp->count_format_types = plane->format_count;
+
+out:
+	mutex_unlock(&dev->mode_config.mutex);
+	return ret;
+}
+
+/**
+ * drm_mode_setplane - set up or tear down an plane
+ * @dev: DRM device
+ * @data: ioctl data*
+ * @file_prive: DRM file info
+ *
+ * Set plane info, including placement, fb, scaling, and other factors.
+ * Or pass a NULL fb to disable.
+ */
+int drm_mode_setplane(struct drm_device *dev, void *data,
+			struct drm_file *file_priv)
+{
+	struct drm_mode_set_plane *plane_req = data;
+	struct drm_mode_object *obj;
+	struct drm_plane *plane;
+	struct drm_crtc *crtc;
+	struct drm_framebuffer *fb;
+	int ret = 0;
+	unsigned int fb_width, fb_height;
+	int i;
+
+	if (!drm_core_check_feature(dev, DRIVER_MODESET))
+		return -EINVAL;
+
+	mutex_lock(&dev->mode_config.mutex);
+
+	/*
+	 * First, find the plane, crtc, and fb objects.  If not available,
+	 * we don't bother to call the driver.
+	 */
+	obj = drm_mode_object_find(dev, plane_req->plane_id,
+				   DRM_MODE_OBJECT_PLANE);
+	if (!obj) {
+		DRM_DEBUG_KMS("Unknown plane ID %d\n",
+			      plane_req->plane_id);
+		ret = -ENOENT;
+		goto out;
+	}
+	plane = obj_to_plane(obj);
+
+	/* No fb means shut it down */
+	if (!plane_req->fb_id) {
+		plane->funcs->disable_plane(plane);
+		plane->crtc = NULL;
+		plane->fb = NULL;
+		goto out;
+	}
+
+	obj = drm_mode_object_find(dev, plane_req->crtc_id,
+				   DRM_MODE_OBJECT_CRTC);
+	if (!obj) {
+		DRM_DEBUG_KMS("Unknown crtc ID %d\n",
+			      plane_req->crtc_id);
+		ret = -ENOENT;
+		goto out;
+	}
+	crtc = obj_to_crtc(obj);
+
+	obj = drm_mode_object_find(dev, plane_req->fb_id,
+				   DRM_MODE_OBJECT_FB);
+	if (!obj) {
+		DRM_DEBUG_KMS("Unknown framebuffer ID %d\n",
+			      plane_req->fb_id);
+		ret = -ENOENT;
+		goto out;
+	}
+	fb = obj_to_fb(obj);
+
+	/* Check whether this plane supports the fb pixel format. */
+	for (i = 0; i < plane->format_count; i++)
+		if (fb->pixel_format == plane->format_types[i])
+			break;
+	if (i == plane->format_count) {
+		DRM_DEBUG_KMS("Invalid pixel format 0x%08x\n", fb->pixel_format);
+		ret = -EINVAL;
+		goto out;
+	}
+
+	fb_width = fb->width << 16;
+	fb_height = fb->height << 16;
+
+	/* Make sure source coordinates are inside the fb. */
+	if (plane_req->src_w > fb_width ||
+	    plane_req->src_x > fb_width - plane_req->src_w ||
+	    plane_req->src_h > fb_height ||
+	    plane_req->src_y > fb_height - plane_req->src_h) {
+		DRM_DEBUG_KMS("Invalid source coordinates "
+			      "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n",
+			      plane_req->src_w >> 16,
+			      ((plane_req->src_w & 0xffff) * 15625) >> 10,
+			      plane_req->src_h >> 16,
+			      ((plane_req->src_h & 0xffff) * 15625) >> 10,
+			      plane_req->src_x >> 16,
+			      ((plane_req->src_x & 0xffff) * 15625) >> 10,
+			      plane_req->src_y >> 16,
+			      ((plane_req->src_y & 0xffff) * 15625) >> 10);
+		ret = -ENOSPC;
+		goto out;
+	}
+
+	/* Give drivers some help against integer overflows */
+	if (plane_req->crtc_w > INT_MAX ||
+	    plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w ||
+	    plane_req->crtc_h > INT_MAX ||
+	    plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) {
+		DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n",
+			      plane_req->crtc_w, plane_req->crtc_h,
+			      plane_req->crtc_x, plane_req->crtc_y);
+		ret = -ERANGE;
+		goto out;
+	}
+
+	ret = plane->funcs->update_plane(plane, crtc, fb,
+					 plane_req->crtc_x, plane_req->crtc_y,
+					 plane_req->crtc_w, plane_req->crtc_h,
+					 plane_req->src_x, plane_req->src_y,
+					 plane_req->src_w, plane_req->src_h);
+	if (!ret) {
+		plane->crtc = crtc;
+		plane->fb = fb;
+	}
+
+out:
+	mutex_unlock(&dev->mode_config.mutex);
+
+	return ret;
+}
+
+/**
  * drm_mode_setcrtc - set CRTC configuration
  * @inode: inode from the ioctl
  * @filp: file * from the ioctl
@@ -1576,7 +1892,7 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data,
 		}
 
 		for (i = 0; i < crtc_req->count_connectors; i++) {
-			set_connectors_ptr = (uint32_t *)(unsigned long)crtc_req->set_connectors_ptr;
+			set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr;
 			if (get_user(out_id, &set_connectors_ptr[i])) {
 				ret = -EFAULT;
 				goto out;
@@ -1625,10 +1941,8 @@ int drm_mode_cursor_ioctl(struct drm_device *dev,
 	if (!drm_core_check_feature(dev, DRIVER_MODESET))
 		return -EINVAL;
 
-	if (!req->flags) {
-		DRM_ERROR("no operation set\n");
+	if (!req->flags)
 		return -EINVAL;
-	}
 
 	mutex_lock(&dev->mode_config.mutex);
 	obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC);
@@ -1641,7 +1955,6 @@ int drm_mode_cursor_ioctl(struct drm_device *dev,
 
 	if (req->flags & DRM_MODE_CURSOR_BO) {
 		if (!crtc->funcs->cursor_set) {
-			DRM_ERROR("crtc does not support cursor\n");
 			ret = -ENXIO;
 			goto out;
 		}
@@ -1654,7 +1967,6 @@ int drm_mode_cursor_ioctl(struct drm_device *dev,
 		if (crtc->funcs->cursor_move) {
 			ret = crtc->funcs->cursor_move(crtc, req->x, req->y);
 		} else {
-			DRM_ERROR("crtc does not support cursor\n");
 			ret = -EFAULT;
 			goto out;
 		}
@@ -1664,6 +1976,42 @@ out:
 	return ret;
 }
 
+/* Original addfb only supported RGB formats, so figure out which one */
+uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth)
+{
+	uint32_t fmt;
+
+	switch (bpp) {
+	case 8:
+		fmt = DRM_FORMAT_RGB332;
+		break;
+	case 16:
+		if (depth == 15)
+			fmt = DRM_FORMAT_XRGB1555;
+		else
+			fmt = DRM_FORMAT_RGB565;
+		break;
+	case 24:
+		fmt = DRM_FORMAT_RGB888;
+		break;
+	case 32:
+		if (depth == 24)
+			fmt = DRM_FORMAT_XRGB8888;
+		else if (depth == 30)
+			fmt = DRM_FORMAT_XRGB2101010;
+		else
+			fmt = DRM_FORMAT_ARGB8888;
+		break;
+	default:
+		DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n");
+		fmt = DRM_FORMAT_XRGB8888;
+		break;
+	}
+
+	return fmt;
+}
+EXPORT_SYMBOL(drm_mode_legacy_fb_format);
+
 /**
  * drm_mode_addfb - add an FB to the graphics configuration
  * @inode: inode from the ioctl
@@ -1684,7 +2032,140 @@ out:
 int drm_mode_addfb(struct drm_device *dev,
 		   void *data, struct drm_file *file_priv)
 {
-	struct drm_mode_fb_cmd *r = data;
+	struct drm_mode_fb_cmd *or = data;
+	struct drm_mode_fb_cmd2 r = {};
+	struct drm_mode_config *config = &dev->mode_config;
+	struct drm_framebuffer *fb;
+	int ret = 0;
+
+	/* Use new struct with format internally */
+	r.fb_id = or->fb_id;
+	r.width = or->width;
+	r.height = or->height;
+	r.pitches[0] = or->pitch;
+	r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth);
+	r.handles[0] = or->handle;
+
+	if (!drm_core_check_feature(dev, DRIVER_MODESET))
+		return -EINVAL;
+
+	if ((config->min_width > r.width) || (r.width > config->max_width))
+		return -EINVAL;
+
+	if ((config->min_height > r.height) || (r.height > config->max_height))
+		return -EINVAL;
+
+	mutex_lock(&dev->mode_config.mutex);
+
+	/* TODO check buffer is sufficiently large */
+	/* TODO setup destructor callback */
+
+	fb = dev->mode_config.funcs->fb_create(dev, file_priv, &r);
+	if (IS_ERR(fb)) {
+		DRM_ERROR("could not create framebuffer\n");
+		ret = PTR_ERR(fb);
+		goto out;
+	}
+
+	or->fb_id = fb->base.id;
+	list_add(&fb->filp_head, &file_priv->fbs);
+	DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
+
+out:
+	mutex_unlock(&dev->mode_config.mutex);
+	return ret;
+}
+
+static int format_check(struct drm_mode_fb_cmd2 *r)
+{
+	uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN;
+
+	switch (format) {
+	case DRM_FORMAT_C8:
+	case DRM_FORMAT_RGB332:
+	case DRM_FORMAT_BGR233:
+	case DRM_FORMAT_XRGB4444:
+	case DRM_FORMAT_XBGR4444:
+	case DRM_FORMAT_RGBX4444:
+	case DRM_FORMAT_BGRX4444:
+	case DRM_FORMAT_ARGB4444:
+	case DRM_FORMAT_ABGR4444:
+	case DRM_FORMAT_RGBA4444:
+	case DRM_FORMAT_BGRA4444:
+	case DRM_FORMAT_XRGB1555:
+	case DRM_FORMAT_XBGR1555:
+	case DRM_FORMAT_RGBX5551:
+	case DRM_FORMAT_BGRX5551:
+	case DRM_FORMAT_ARGB1555:
+	case DRM_FORMAT_ABGR1555:
+	case DRM_FORMAT_RGBA5551:
+	case DRM_FORMAT_BGRA5551:
+	case DRM_FORMAT_RGB565:
+	case DRM_FORMAT_BGR565:
+	case DRM_FORMAT_RGB888:
+	case DRM_FORMAT_BGR888:
+	case DRM_FORMAT_XRGB8888:
+	case DRM_FORMAT_XBGR8888:
+	case DRM_FORMAT_RGBX8888:
+	case DRM_FORMAT_BGRX8888:
+	case DRM_FORMAT_ARGB8888:
+	case DRM_FORMAT_ABGR8888:
+	case DRM_FORMAT_RGBA8888:
+	case DRM_FORMAT_BGRA8888:
+	case DRM_FORMAT_XRGB2101010:
+	case DRM_FORMAT_XBGR2101010:
+	case DRM_FORMAT_RGBX1010102:
+	case DRM_FORMAT_BGRX1010102:
+	case DRM_FORMAT_ARGB2101010:
+	case DRM_FORMAT_ABGR2101010:
+	case DRM_FORMAT_RGBA1010102:
+	case DRM_FORMAT_BGRA1010102:
+	case DRM_FORMAT_YUYV:
+	case DRM_FORMAT_YVYU:
+	case DRM_FORMAT_UYVY:
+	case DRM_FORMAT_VYUY:
+	case DRM_FORMAT_AYUV:
+	case DRM_FORMAT_NV12:
+	case DRM_FORMAT_NV21:
+	case DRM_FORMAT_NV16:
+	case DRM_FORMAT_NV61:
+	case DRM_FORMAT_YUV410:
+	case DRM_FORMAT_YVU410:
+	case DRM_FORMAT_YUV411:
+	case DRM_FORMAT_YVU411:
+	case DRM_FORMAT_YUV420:
+	case DRM_FORMAT_YVU420:
+	case DRM_FORMAT_YUV422:
+	case DRM_FORMAT_YVU422:
+	case DRM_FORMAT_YUV444:
+	case DRM_FORMAT_YVU444:
+		return 0;
+	default:
+		return -EINVAL;
+	}
+}
+
+/**
+ * drm_mode_addfb2 - add an FB to the graphics configuration
+ * @inode: inode from the ioctl
+ * @filp: file * from the ioctl
+ * @cmd: cmd from ioctl
+ * @arg: arg from ioctl
+ *
+ * LOCKING:
+ * Takes mode config lock.
+ *
+ * Add a new FB to the specified CRTC, given a user request with format.
+ *
+ * Called by the user via ioctl.
+ *
+ * RETURNS:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_addfb2(struct drm_device *dev,
+		    void *data, struct drm_file *file_priv)
+{
+	struct drm_mode_fb_cmd2 *r = data;
 	struct drm_mode_config *config = &dev->mode_config;
 	struct drm_framebuffer *fb;
 	int ret = 0;
@@ -1693,18 +2174,23 @@ int drm_mode_addfb(struct drm_device *dev,
 		return -EINVAL;
 
 	if ((config->min_width > r->width) || (r->width > config->max_width)) {
-		DRM_ERROR("mode new framebuffer width not within limits\n");
+		DRM_ERROR("bad framebuffer width %d, should be >= %d && <= %d\n",
+			  r->width, config->min_width, config->max_width);
 		return -EINVAL;
 	}
 	if ((config->min_height > r->height) || (r->height > config->max_height)) {
-		DRM_ERROR("mode new framebuffer height not within limits\n");
+		DRM_ERROR("bad framebuffer height %d, should be >= %d && <= %d\n",
+			  r->height, config->min_height, config->max_height);
 		return -EINVAL;
 	}
 
-	mutex_lock(&dev->mode_config.mutex);
+	ret = format_check(r);
+	if (ret) {
+		DRM_ERROR("bad framebuffer format 0x%08x\n", r->pixel_format);
+		return ret;
+	}
 
-	/* TODO check buffer is sufficiently large */
-	/* TODO setup destructor callback */
+	mutex_lock(&dev->mode_config.mutex);
 
 	fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
 	if (IS_ERR(fb)) {
@@ -1756,7 +2242,6 @@ int drm_mode_rmfb(struct drm_device *dev,
 	obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB);
 	/* TODO check that we really get a framebuffer back. */
 	if (!obj) {
-		DRM_ERROR("mode invalid framebuffer id\n");
 		ret = -EINVAL;
 		goto out;
 	}
@@ -1767,7 +2252,6 @@ int drm_mode_rmfb(struct drm_device *dev,
 			found = 1;
 
 	if (!found) {
-		DRM_ERROR("tried to remove a fb that we didn't own\n");
 		ret = -EINVAL;
 		goto out;
 	}
@@ -1814,7 +2298,6 @@ int drm_mode_getfb(struct drm_device *dev,
 	mutex_lock(&dev->mode_config.mutex);
 	obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
 	if (!obj) {
-		DRM_ERROR("invalid framebuffer id\n");
 		ret = -EINVAL;
 		goto out;
 	}
@@ -1824,7 +2307,7 @@ int drm_mode_getfb(struct drm_device *dev,
 	r->width = fb->width;
 	r->depth = fb->depth;
 	r->bpp = fb->bits_per_pixel;
-	r->pitch = fb->pitch;
+	r->pitch = fb->pitches[0];
 	fb->funcs->create_handle(fb, file_priv, &r->handle);
 
 out:
@@ -1850,14 +2333,13 @@ int drm_mode_dirtyfb_ioctl(struct drm_device *dev,
 	mutex_lock(&dev->mode_config.mutex);
 	obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB);
 	if (!obj) {
-		DRM_ERROR("invalid framebuffer id\n");
 		ret = -EINVAL;
 		goto out_err1;
 	}
 	fb = obj_to_fb(obj);
 
 	num_clips = r->num_clips;
-	clips_ptr = (struct drm_clip_rect *)(unsigned long)r->clips_ptr;
+	clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr;
 
 	if (!num_clips != !clips_ptr) {
 		ret = -EINVAL;
@@ -2253,7 +2735,7 @@ int drm_mode_getproperty_ioctl(struct drm_device *dev,
 	struct drm_property_enum *prop_enum;
 	struct drm_mode_property_enum __user *enum_ptr;
 	struct drm_property_blob *prop_blob;
-	uint32_t *blob_id_ptr;
+	uint32_t __user *blob_id_ptr;
 	uint64_t __user *values_ptr;
 	uint32_t __user *blob_length_ptr;
 
@@ -2283,7 +2765,7 @@ int drm_mode_getproperty_ioctl(struct drm_device *dev,
 	out_resp->flags = property->flags;
 
 	if ((out_resp->count_values >= value_count) && value_count) {
-		values_ptr = (uint64_t *)(unsigned long)out_resp->values_ptr;
+		values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr;
 		for (i = 0; i < value_count; i++) {
 			if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) {
 				ret = -EFAULT;
@@ -2296,7 +2778,7 @@ int drm_mode_getproperty_ioctl(struct drm_device *dev,
 	if (property->flags & DRM_MODE_PROP_ENUM) {
 		if ((out_resp->count_enum_blobs >= enum_count) && enum_count) {
 			copied = 0;
-			enum_ptr = (struct drm_mode_property_enum *)(unsigned long)out_resp->enum_blob_ptr;
+			enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr;
 			list_for_each_entry(prop_enum, &property->enum_blob_list, head) {
 
 				if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) {
@@ -2318,8 +2800,8 @@ int drm_mode_getproperty_ioctl(struct drm_device *dev,
 	if (property->flags & DRM_MODE_PROP_BLOB) {
 		if ((out_resp->count_enum_blobs >= blob_count) && blob_count) {
 			copied = 0;
-			blob_id_ptr = (uint32_t *)(unsigned long)out_resp->enum_blob_ptr;
-			blob_length_ptr = (uint32_t *)(unsigned long)out_resp->values_ptr;
+			blob_id_ptr = (uint32_t __user *)(unsigned long)out_resp->enum_blob_ptr;
+			blob_length_ptr = (uint32_t __user *)(unsigned long)out_resp->values_ptr;
 
 			list_for_each_entry(prop_blob, &property->enum_blob_list, head) {
 				if (put_user(prop_blob->base.id, blob_id_ptr + copied)) {
@@ -2380,7 +2862,7 @@ int drm_mode_getblob_ioctl(struct drm_device *dev,
 	struct drm_mode_get_blob *out_resp = data;
 	struct drm_property_blob *blob;
 	int ret = 0;
-	void *blob_ptr;
+	void __user *blob_ptr;
 
 	if (!drm_core_check_feature(dev, DRIVER_MODESET))
 		return -EINVAL;
@@ -2394,7 +2876,7 @@ int drm_mode_getblob_ioctl(struct drm_device *dev,
 	blob = obj_to_blob(obj);
 
 	if (out_resp->length == blob->length) {
-		blob_ptr = (void *)(unsigned long)out_resp->data;
+		blob_ptr = (void __user *)(unsigned long)out_resp->data;
 		if (copy_to_user(blob_ptr, blob->data, blob->length)){
 			ret = -EFAULT;
 			goto done;
@@ -2788,3 +3270,71 @@ int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
 
 	return dev->driver->dumb_destroy(file_priv, dev, args->handle);
 }
+
+/*
+ * Just need to support RGB formats here for compat with code that doesn't
+ * use pixel formats directly yet.
+ */
+void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
+			  int *bpp)
+{
+	switch (format) {
+	case DRM_FORMAT_RGB332:
+	case DRM_FORMAT_BGR233:
+		*depth = 8;
+		*bpp = 8;
+		break;
+	case DRM_FORMAT_XRGB1555:
+	case DRM_FORMAT_XBGR1555:
+	case DRM_FORMAT_RGBX5551:
+	case DRM_FORMAT_BGRX5551:
+	case DRM_FORMAT_ARGB1555:
+	case DRM_FORMAT_ABGR1555:
+	case DRM_FORMAT_RGBA5551:
+	case DRM_FORMAT_BGRA5551:
+		*depth = 15;
+		*bpp = 16;
+		break;
+	case DRM_FORMAT_RGB565:
+	case DRM_FORMAT_BGR565:
+		*depth = 16;
+		*bpp = 16;
+		break;
+	case DRM_FORMAT_RGB888:
+	case DRM_FORMAT_BGR888:
+		*depth = 24;
+		*bpp = 24;
+		break;
+	case DRM_FORMAT_XRGB8888:
+	case DRM_FORMAT_XBGR8888:
+	case DRM_FORMAT_RGBX8888:
+	case DRM_FORMAT_BGRX8888:
+		*depth = 24;
+		*bpp = 32;
+		break;
+	case DRM_FORMAT_XRGB2101010:
+	case DRM_FORMAT_XBGR2101010:
+	case DRM_FORMAT_RGBX1010102:
+	case DRM_FORMAT_BGRX1010102:
+	case DRM_FORMAT_ARGB2101010:
+	case DRM_FORMAT_ABGR2101010:
+	case DRM_FORMAT_RGBA1010102:
+	case DRM_FORMAT_BGRA1010102:
+		*depth = 30;
+		*bpp = 32;
+		break;
+	case DRM_FORMAT_ARGB8888:
+	case DRM_FORMAT_ABGR8888:
+	case DRM_FORMAT_RGBA8888:
+	case DRM_FORMAT_BGRA8888:
+		*depth = 32;
+		*bpp = 32;
+		break;
+	default:
+		DRM_DEBUG_KMS("unsupported pixel format\n");
+		*depth = 0;
+		*bpp = 0;
+		break;
+	}
+}
+EXPORT_SYMBOL(drm_fb_get_bpp_depth);
diff --git a/drivers/gpu/drm/drm_crtc_helper.c b/drivers/gpu/drm/drm_crtc_helper.c
index d2619d72cece..84a4a809793f 100644
--- a/drivers/gpu/drm/drm_crtc_helper.c
+++ b/drivers/gpu/drm/drm_crtc_helper.c
@@ -34,6 +34,7 @@
 
 #include "drmP.h"
 #include "drm_crtc.h"
+#include "drm_fourcc.h"
 #include "drm_crtc_helper.h"
 #include "drm_fb_helper.h"
 
@@ -710,7 +711,7 @@ int drm_crtc_helper_set_config(struct drm_mode_set *set)
 			for (i = 0; i < set->num_connectors; i++) {
 				DRM_DEBUG_KMS("\t[CONNECTOR:%d:%s] set DPMS on\n", set->connectors[i]->base.id,
 					      drm_get_connector_name(set->connectors[i]));
-				set->connectors[i]->dpms = DRM_MODE_DPMS_ON;
+				set->connectors[i]->funcs->dpms(set->connectors[i], DRM_MODE_DPMS_ON);
 			}
 		}
 		drm_helper_disable_unused_functions(dev);
@@ -847,13 +848,19 @@ void drm_helper_connector_dpms(struct drm_connector *connector, int mode)
 EXPORT_SYMBOL(drm_helper_connector_dpms);
 
 int drm_helper_mode_fill_fb_struct(struct drm_framebuffer *fb,
-				   struct drm_mode_fb_cmd *mode_cmd)
+				   struct drm_mode_fb_cmd2 *mode_cmd)
 {
+	int i;
+
 	fb->width = mode_cmd->width;
 	fb->height = mode_cmd->height;
-	fb->pitch = mode_cmd->pitch;
-	fb->bits_per_pixel = mode_cmd->bpp;
-	fb->depth = mode_cmd->depth;
+	for (i = 0; i < 4; i++) {
+		fb->pitches[i] = mode_cmd->pitches[i];
+		fb->offsets[i] = mode_cmd->offsets[i];
+	}
+	drm_fb_get_bpp_depth(mode_cmd->pixel_format, &fb->depth,
+				    &fb->bits_per_pixel);
+	fb->pixel_format = mode_cmd->pixel_format;
 
 	return 0;
 }
@@ -1008,3 +1015,36 @@ void drm_helper_hpd_irq_event(struct drm_device *dev)
 		queue_delayed_work(system_nrt_wq, &dev->mode_config.output_poll_work, 0);
 }
 EXPORT_SYMBOL(drm_helper_hpd_irq_event);
+
+
+/**
+ * drm_format_num_planes - get the number of planes for format
+ * @format: pixel format (DRM_FORMAT_*)
+ *
+ * RETURNS:
+ * The number of planes used by the specified pixel format.
+ */
+int drm_format_num_planes(uint32_t format)
+{
+	switch (format) {
+	case DRM_FORMAT_YUV410:
+	case DRM_FORMAT_YVU410:
+	case DRM_FORMAT_YUV411:
+	case DRM_FORMAT_YVU411:
+	case DRM_FORMAT_YUV420:
+	case DRM_FORMAT_YVU420:
+	case DRM_FORMAT_YUV422:
+	case DRM_FORMAT_YVU422:
+	case DRM_FORMAT_YUV444:
+	case DRM_FORMAT_YVU444:
+		return 3;
+	case DRM_FORMAT_NV12:
+	case DRM_FORMAT_NV21:
+	case DRM_FORMAT_NV16:
+	case DRM_FORMAT_NV61:
+		return 2;
+	default:
+		return 1;
+	}
+}
+EXPORT_SYMBOL(drm_format_num_planes);
diff --git a/drivers/gpu/drm/drm_drv.c b/drivers/gpu/drm/drm_drv.c
index 40c187c60f44..ebf7d3f68fc4 100644
--- a/drivers/gpu/drm/drm_drv.c
+++ b/drivers/gpu/drm/drm_drv.c
@@ -61,14 +61,14 @@ static int drm_version(struct drm_device *dev, void *data,
 
 /** Ioctl table */
 static struct drm_ioctl_desc drm_ioctls[] = {
-	DRM_IOCTL_DEF(DRM_IOCTL_VERSION, drm_version, 0),
+	DRM_IOCTL_DEF(DRM_IOCTL_VERSION, drm_version, DRM_UNLOCKED),
 	DRM_IOCTL_DEF(DRM_IOCTL_GET_UNIQUE, drm_getunique, 0),
 	DRM_IOCTL_DEF(DRM_IOCTL_GET_MAGIC, drm_getmagic, 0),
 	DRM_IOCTL_DEF(DRM_IOCTL_IRQ_BUSID, drm_irq_by_busid, DRM_MASTER|DRM_ROOT_ONLY),
-	DRM_IOCTL_DEF(DRM_IOCTL_GET_MAP, drm_getmap, 0),
-	DRM_IOCTL_DEF(DRM_IOCTL_GET_CLIENT, drm_getclient, 0),
-	DRM_IOCTL_DEF(DRM_IOCTL_GET_STATS, drm_getstats, 0),
-	DRM_IOCTL_DEF(DRM_IOCTL_GET_CAP, drm_getcap, 0),
+	DRM_IOCTL_DEF(DRM_IOCTL_GET_MAP, drm_getmap, DRM_UNLOCKED),
+	DRM_IOCTL_DEF(DRM_IOCTL_GET_CLIENT, drm_getclient, DRM_UNLOCKED),
+	DRM_IOCTL_DEF(DRM_IOCTL_GET_STATS, drm_getstats, DRM_UNLOCKED),
+	DRM_IOCTL_DEF(DRM_IOCTL_GET_CAP, drm_getcap, DRM_UNLOCKED),
 	DRM_IOCTL_DEF(DRM_IOCTL_SET_VERSION, drm_setversion, DRM_MASTER),
 
 	DRM_IOCTL_DEF(DRM_IOCTL_SET_UNIQUE, drm_setunique, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
@@ -136,8 +136,11 @@ static struct drm_ioctl_desc drm_ioctls[] = {
 	DRM_IOCTL_DEF(DRM_IOCTL_GEM_OPEN, drm_gem_open_ioctl, DRM_AUTH|DRM_UNLOCKED),
 
 	DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETRESOURCES, drm_mode_getresources, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+	DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPLANERESOURCES, drm_mode_getplane_res, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
 	DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETCRTC, drm_mode_getcrtc, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
 	DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETCRTC, drm_mode_setcrtc, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+	DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPLANE, drm_mode_getplane, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+	DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETPLANE, drm_mode_setplane, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
 	DRM_IOCTL_DEF(DRM_IOCTL_MODE_CURSOR, drm_mode_cursor_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
 	DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETGAMMA, drm_mode_gamma_get_ioctl, DRM_MASTER|DRM_UNLOCKED),
 	DRM_IOCTL_DEF(DRM_IOCTL_MODE_SETGAMMA, drm_mode_gamma_set_ioctl, DRM_MASTER|DRM_UNLOCKED),
@@ -150,6 +153,7 @@ static struct drm_ioctl_desc drm_ioctls[] = {
 	DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETPROPBLOB, drm_mode_getblob_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
 	DRM_IOCTL_DEF(DRM_IOCTL_MODE_GETFB, drm_mode_getfb, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
 	DRM_IOCTL_DEF(DRM_IOCTL_MODE_ADDFB, drm_mode_addfb, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+	DRM_IOCTL_DEF(DRM_IOCTL_MODE_ADDFB2, drm_mode_addfb2, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
 	DRM_IOCTL_DEF(DRM_IOCTL_MODE_RMFB, drm_mode_rmfb, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
 	DRM_IOCTL_DEF(DRM_IOCTL_MODE_PAGE_FLIP, drm_mode_page_flip_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
 	DRM_IOCTL_DEF(DRM_IOCTL_MODE_DIRTYFB, drm_mode_dirtyfb_ioctl, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
diff --git a/drivers/gpu/drm/drm_edid.c b/drivers/gpu/drm/drm_edid.c
index 3e927ce7557d..ece03fc2d386 100644
--- a/drivers/gpu/drm/drm_edid.c
+++ b/drivers/gpu/drm/drm_edid.c
@@ -508,25 +508,10 @@ static void
 cea_for_each_detailed_block(u8 *ext, detailed_cb *cb, void *closure)
 {
 	int i, n = 0;
-	u8 rev = ext[0x01], d = ext[0x02];
+	u8 d = ext[0x02];
 	u8 *det_base = ext + d;
 
-	switch (rev) {
-	case 0:
-		/* can't happen */
-		return;
-	case 1:
-		/* have to infer how many blocks we have, check pixel clock */
-		for (i = 0; i < 6; i++)
-			if (det_base[18*i] || det_base[18*i+1])
-				n++;
-		break;
-	default:
-		/* explicit count */
-		n = min(ext[0x03] & 0x0f, 6);
-		break;
-	}
-
+	n = (127 - d) / 18;
 	for (i = 0; i < n; i++)
 		cb((struct detailed_timing *)(det_base + 18 * i), closure);
 }
@@ -1319,6 +1304,7 @@ add_detailed_modes(struct drm_connector *connector, struct edid *edid,
 
 #define HDMI_IDENTIFIER 0x000C03
 #define AUDIO_BLOCK	0x01
+#define VIDEO_BLOCK     0x02
 #define VENDOR_BLOCK    0x03
 #define SPEAKER_BLOCK	0x04
 #define EDID_BASIC_AUDIO	(1 << 6)
@@ -1349,6 +1335,47 @@ u8 *drm_find_cea_extension(struct edid *edid)
 }
 EXPORT_SYMBOL(drm_find_cea_extension);
 
+static int
+do_cea_modes (struct drm_connector *connector, u8 *db, u8 len)
+{
+	struct drm_device *dev = connector->dev;
+	u8 * mode, cea_mode;
+	int modes = 0;
+
+	for (mode = db; mode < db + len; mode++) {
+		cea_mode = (*mode & 127) - 1; /* CEA modes are numbered 1..127 */
+		if (cea_mode < drm_num_cea_modes) {
+			struct drm_display_mode *newmode;
+			newmode = drm_mode_duplicate(dev,
+						     &edid_cea_modes[cea_mode]);
+			if (newmode) {
+				drm_mode_probed_add(connector, newmode);
+				modes++;
+			}
+		}
+	}
+
+	return modes;
+}
+
+static int
+add_cea_modes(struct drm_connector *connector, struct edid *edid)
+{
+	u8 * cea = drm_find_cea_extension(edid);
+	u8 * db, dbl;
+	int modes = 0;
+
+	if (cea && cea[1] >= 3) {
+		for (db = cea + 4; db < cea + cea[2]; db += dbl + 1) {
+			dbl = db[0] & 0x1f;
+			if (((db[0] & 0xe0) >> 5) == VIDEO_BLOCK)
+				modes += do_cea_modes (connector, db+1, dbl);
+		}
+	}
+
+	return modes;
+}
+
 static void
 parse_hdmi_vsdb(struct drm_connector *connector, uint8_t *db)
 {
@@ -1432,26 +1459,29 @@ void drm_edid_to_eld(struct drm_connector *connector, struct edid *edid)
 	eld[18] = edid->prod_code[0];
 	eld[19] = edid->prod_code[1];
 
-	for (db = cea + 4; db < cea + cea[2]; db += dbl + 1) {
-		dbl = db[0] & 0x1f;
-
-		switch ((db[0] & 0xe0) >> 5) {
-		case AUDIO_BLOCK:	/* Audio Data Block, contains SADs */
-			sad_count = dbl / 3;
-			memcpy(eld + 20 + mnl, &db[1], dbl);
-			break;
-		case SPEAKER_BLOCK:	/* Speaker Allocation Data Block */
-			eld[7] = db[1];
-			break;
-		case VENDOR_BLOCK:
-			/* HDMI Vendor-Specific Data Block */
-			if (db[1] == 0x03 && db[2] == 0x0c && db[3] == 0)
-				parse_hdmi_vsdb(connector, db);
-			break;
-		default:
-			break;
+	if (cea[1] >= 3)
+		for (db = cea + 4; db < cea + cea[2]; db += dbl + 1) {
+			dbl = db[0] & 0x1f;
+			
+			switch ((db[0] & 0xe0) >> 5) {
+			case AUDIO_BLOCK:
+				/* Audio Data Block, contains SADs */
+				sad_count = dbl / 3;
+				memcpy(eld + 20 + mnl, &db[1], dbl);
+				break;
+			case SPEAKER_BLOCK:
+                                /* Speaker Allocation Data Block */
+				eld[7] = db[1];
+				break;
+			case VENDOR_BLOCK:
+				/* HDMI Vendor-Specific Data Block */
+				if (db[1] == 0x03 && db[2] == 0x0c && db[3] == 0)
+					parse_hdmi_vsdb(connector, db);
+				break;
+			default:
+				break;
+			}
 		}
-	}
 	eld[5] |= sad_count << 4;
 	eld[2] = (20 + mnl + sad_count * 3 + 3) / 4;
 
@@ -1722,6 +1752,7 @@ int drm_add_edid_modes(struct drm_connector *connector, struct edid *edid)
 	num_modes += add_standard_modes(connector, edid);
 	num_modes += add_established_modes(connector, edid);
 	num_modes += add_inferred_modes(connector, edid);
+	num_modes += add_cea_modes(connector, edid);
 
 	if (quirks & (EDID_QUIRK_PREFER_LARGE_60 | EDID_QUIRK_PREFER_LARGE_75))
 		edid_fixup_preferred(connector, quirks);
diff --git a/drivers/gpu/drm/drm_edid_modes.h b/drivers/gpu/drm/drm_edid_modes.h
index 5f2064489fd5..a91ffb117220 100644
--- a/drivers/gpu/drm/drm_edid_modes.h
+++ b/drivers/gpu/drm/drm_edid_modes.h
@@ -378,3 +378,287 @@ static const struct {
 	{ 1920, 1440, 75, 0 },
 };
 static const int num_est3_modes = sizeof(est3_modes) / sizeof(est3_modes[0]);
+
+/*
+ * Probably taken from CEA-861 spec.
+ * This table is converted from xorg's hw/xfree86/modes/xf86EdidModes.c.
+ */
+static const struct drm_display_mode edid_cea_modes[] = {
+	/* 640x480@60Hz */
+	{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 25175, 640, 656,
+		   752, 800, 0, 480, 490, 492, 525, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+	/* 720x480@60Hz */
+	{ DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 27000, 720, 736,
+		   798, 858, 0, 480, 489, 495, 525, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+	/* 720x480@60Hz */
+	{ DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 27000, 720, 736,
+		   798, 858, 0, 480, 489, 495, 525, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+	/* 1280x720@60Hz */
+	{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 1390,
+		   1430, 1650, 0, 720, 725, 730, 750, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+	/* 1920x1080i@60Hz */
+	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2008,
+		   2052, 2200, 0, 1080, 1084, 1094, 1125, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
+			DRM_MODE_FLAG_INTERLACE) },
+	/* 1440x480i@60Hz */
+	{ DRM_MODE("1440x480", DRM_MODE_TYPE_DRIVER, 27000, 1440, 1478,
+		   1602, 1716, 0, 480, 488, 494, 525, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
+			DRM_MODE_FLAG_INTERLACE) },
+	/* 1440x480i@60Hz */
+	{ DRM_MODE("1440x480", DRM_MODE_TYPE_DRIVER, 27000, 1440, 1478,
+		   1602, 1716, 0, 480, 488, 494, 525, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
+			DRM_MODE_FLAG_INTERLACE) },
+	/* 1440x240@60Hz */
+	{ DRM_MODE("1440x240", DRM_MODE_TYPE_DRIVER, 27000, 1440, 1478,
+		   1602, 1716, 0, 240, 244, 247, 262, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+	/* 1440x240@60Hz */
+	{ DRM_MODE("1440x240", DRM_MODE_TYPE_DRIVER, 27000, 1440, 1478,
+		   1602, 1716, 0, 240, 244, 247, 262, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+	/* 2880x480i@60Hz */
+	{ DRM_MODE("2880x480", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2956,
+		   3204, 3432, 0, 480, 488, 494, 525, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
+			DRM_MODE_FLAG_INTERLACE) },
+	/* 2880x480i@60Hz */
+	{ DRM_MODE("2880x480", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2956,
+		   3204, 3432, 0, 480, 488, 494, 525, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
+			DRM_MODE_FLAG_INTERLACE) },
+	/* 2880x240@60Hz */
+	{ DRM_MODE("2880x240", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2956,
+		   3204, 3432, 0, 240, 244, 247, 262, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+	/* 2880x240@60Hz */
+	{ DRM_MODE("2880x240", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2956,
+		   3204, 3432, 0, 240, 244, 247, 262, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+	/* 1440x480@60Hz */
+	{ DRM_MODE("1440x480", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1472,
+		   1596, 1716, 0, 480, 489, 495, 525, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+	/* 1440x480@60Hz */
+	{ DRM_MODE("1440x480", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1472,
+		   1596, 1716, 0, 480, 489, 495, 525, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+	/* 1920x1080@60Hz */
+	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2008,
+		   2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+	/* 720x576@50Hz */
+	{ DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 27000, 720, 732,
+		   796, 864, 0, 576, 581, 586, 625, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+	/* 720x576@50Hz */
+	{ DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 27000, 720, 732,
+		   796, 864, 0, 576, 581, 586, 625, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+	/* 1280x720@50Hz */
+	{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 1720,
+		   1760, 1980, 0, 720, 725, 730, 750, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+	/* 1920x1080i@50Hz */
+	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2448,
+		   2492, 2640, 0, 1080, 1084, 1094, 1125, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
+			DRM_MODE_FLAG_INTERLACE) },
+	/* 1440x576i@50Hz */
+	{ DRM_MODE("1440x576", DRM_MODE_TYPE_DRIVER, 27000, 1440, 1464,
+		   1590, 1728, 0, 576, 580, 586, 625, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
+			DRM_MODE_FLAG_INTERLACE) },
+	/* 1440x576i@50Hz */
+	{ DRM_MODE("1440x576", DRM_MODE_TYPE_DRIVER, 27000, 1440, 1464,
+		   1590, 1728, 0, 576, 580, 586, 625, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
+			DRM_MODE_FLAG_INTERLACE) },
+	/* 1440x288@50Hz */
+	{ DRM_MODE("1440x288", DRM_MODE_TYPE_DRIVER, 27000, 1440, 1464,
+		   1590, 1728, 0, 288, 290, 293, 312, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+	/* 1440x288@50Hz */
+	{ DRM_MODE("1440x288", DRM_MODE_TYPE_DRIVER, 27000, 1440, 1464,
+		   1590, 1728, 0, 288, 290, 293, 312, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+	/* 2880x576i@50Hz */
+	{ DRM_MODE("2880x576", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2928,
+		   3180, 3456, 0, 576, 580, 586, 625, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
+			DRM_MODE_FLAG_INTERLACE) },
+	/* 2880x576i@50Hz */
+	{ DRM_MODE("2880x576", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2928,
+		   3180, 3456, 0, 576, 580, 586, 625, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
+			DRM_MODE_FLAG_INTERLACE) },
+	/* 2880x288@50Hz */
+	{ DRM_MODE("2880x288", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2928,
+		   3180, 3456, 0, 288, 290, 293, 312, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+	/* 2880x288@50Hz */
+	{ DRM_MODE("2880x288", DRM_MODE_TYPE_DRIVER, 54000, 2880, 2928,
+		   3180, 3456, 0, 288, 290, 293, 312, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+	/* 1440x576@50Hz */
+	{ DRM_MODE("1440x576", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1464,
+		   1592, 1728, 0, 576, 581, 586, 625, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+	/* 1440x576@50Hz */
+	{ DRM_MODE("1440x576", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1464,
+		   1592, 1728, 0, 576, 581, 586, 625, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+	/* 1920x1080@50Hz */
+	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2448,
+		   2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+	/* 1920x1080@24Hz */
+	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2558,
+		   2602, 2750, 0, 1080, 1084, 1089, 1125, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+	/* 1920x1080@25Hz */
+	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2448,
+		   2492, 2640, 0, 1080, 1084, 1089, 1125, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+	/* 1920x1080@30Hz */
+	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 74250, 1920, 2008,
+		   2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+	/* 2880x480@60Hz */
+	{ DRM_MODE("2880x480", DRM_MODE_TYPE_DRIVER, 108000, 2880, 2944,
+		   3192, 3432, 0, 480, 489, 495, 525, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+	/* 2880x480@60Hz */
+	{ DRM_MODE("2880x480", DRM_MODE_TYPE_DRIVER, 108000, 2880, 2944,
+		   3192, 3432, 0, 480, 489, 495, 525, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+	/* 2880x576@50Hz */
+	{ DRM_MODE("2880x576", DRM_MODE_TYPE_DRIVER, 108000, 2880, 2928,
+		   3184, 3456, 0, 576, 581, 586, 625, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+	/* 2880x576@50Hz */
+	{ DRM_MODE("2880x576", DRM_MODE_TYPE_DRIVER, 108000, 2880, 2928,
+		   3184, 3456, 0, 576, 581, 586, 625, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+	/* 1920x1080i@50Hz */
+	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 72000, 1920, 1952,
+		   2120, 2304, 0, 1080, 1126, 1136, 1250, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC |
+			DRM_MODE_FLAG_INTERLACE) },
+	/* 1920x1080i@100Hz */
+	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2448,
+		   2492, 2640, 0, 1080, 1084, 1094, 1125, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
+			DRM_MODE_FLAG_INTERLACE) },
+	/* 1280x720@100Hz */
+	{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1720,
+		   1760, 1980, 0, 720, 725, 730, 750, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+	/* 720x576@100Hz */
+	{ DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 54000, 720, 732,
+		   796, 864, 0, 576, 581, 586, 625, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+	/* 720x576@100Hz */
+	{ DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 54000, 720, 732,
+		   796, 864, 0, 576, 581, 586, 625, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+	/* 1440x576i@100Hz */
+	{ DRM_MODE("1440x576", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1464,
+		   1590, 1728, 0, 576, 580, 586, 625, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+	/* 1440x576i@100Hz */
+	{ DRM_MODE("1440x576", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1464,
+		   1590, 1728, 0, 576, 580, 586, 625, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+	/* 1920x1080i@120Hz */
+	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 148500, 1920, 2008,
+		   2052, 2200, 0, 1080, 1084, 1094, 1125, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC |
+			DRM_MODE_FLAG_INTERLACE) },
+	/* 1280x720@120Hz */
+	{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 148500, 1280, 1390,
+		   1430, 1650, 0, 720, 725, 730, 750, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+	/* 720x480@120Hz */
+	{ DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 54000, 720, 736,
+		   798, 858, 0, 480, 489, 495, 525, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+	/* 720x480@120Hz */
+	{ DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 54000, 720, 736,
+		   798, 858, 0, 480, 489, 495, 525, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+	/* 1440x480i@120Hz */
+	{ DRM_MODE("1440x480", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1478,
+		   1602, 1716, 0, 480, 488, 494, 525, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
+			DRM_MODE_FLAG_INTERLACE) },
+	/* 1440x480i@120Hz */
+	{ DRM_MODE("1440x480", DRM_MODE_TYPE_DRIVER, 54000, 1440, 1478,
+		   1602, 1716, 0, 480, 488, 494, 525, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
+			DRM_MODE_FLAG_INTERLACE) },
+	/* 720x576@200Hz */
+	{ DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 108000, 720, 732,
+		   796, 864, 0, 576, 581, 586, 625, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+	/* 720x576@200Hz */
+	{ DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 108000, 720, 732,
+		   796, 864, 0, 576, 581, 586, 625, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+	/* 1440x576i@200Hz */
+	{ DRM_MODE("1440x576", DRM_MODE_TYPE_DRIVER, 108000, 1440, 1464,
+		   1590, 1728, 0, 576, 580, 586, 625, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
+			DRM_MODE_FLAG_INTERLACE) },
+	/* 1440x576i@200Hz */
+	{ DRM_MODE("1440x576", DRM_MODE_TYPE_DRIVER, 108000, 1440, 1464,
+		   1590, 1728, 0, 576, 580, 586, 625, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
+			DRM_MODE_FLAG_INTERLACE) },
+	/* 720x480@240Hz */
+	{ DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 108000, 720, 736,
+		   798, 858, 0, 480, 489, 495, 525, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+	/* 720x480@240Hz */
+	{ DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 108000, 720, 736,
+		   798, 858, 0, 480, 489, 495, 525, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC) },
+	/* 1440x480i@240 */
+	{ DRM_MODE("1440x480", DRM_MODE_TYPE_DRIVER, 108000, 1440, 1478,
+		   1602, 1716, 0, 480, 488, 494, 525, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
+			DRM_MODE_FLAG_INTERLACE) },
+	/* 1440x480i@240 */
+	{ DRM_MODE("1440x480", DRM_MODE_TYPE_DRIVER, 108000, 1440, 1478,
+		   1602, 1716, 0, 480, 488, 494, 525, 0,
+		   DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC |
+			DRM_MODE_FLAG_INTERLACE) },
+	/* 1280x720@24Hz */
+	{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 59400, 1280, 3040,
+		   3080, 3300, 0, 720, 725, 730, 750, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+	/* 1280x720@25Hz */
+	{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 3700,
+		   3740, 3960, 0, 720, 725, 730, 750, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+	/* 1280x720@30Hz */
+	{ DRM_MODE("1280x720", DRM_MODE_TYPE_DRIVER, 74250, 1280, 3040,
+		   3080, 3300, 0, 720, 725, 730, 750, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+	/* 1920x1080@120Hz */
+	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2008,
+		   2052, 2200, 0, 1080, 1084, 1089, 1125, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+	/* 1920x1080@100Hz */
+	{ DRM_MODE("1920x1080", DRM_MODE_TYPE_DRIVER, 297000, 1920, 2448,
+		   2492, 2640, 0, 1080, 1084, 1094, 1125, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+};
+static const int drm_num_cea_modes =
+	sizeof (edid_cea_modes) / sizeof (edid_cea_modes[0]);
diff --git a/drivers/gpu/drm/drm_fb_helper.c b/drivers/gpu/drm/drm_fb_helper.c
index 80fe39d98b0c..aada26f63dec 100644
--- a/drivers/gpu/drm/drm_fb_helper.c
+++ b/drivers/gpu/drm/drm_fb_helper.c
@@ -255,6 +255,13 @@ bool drm_fb_helper_force_kernel_mode(void)
 int drm_fb_helper_panic(struct notifier_block *n, unsigned long ununsed,
 			void *panic_str)
 {
+	/*
+	 * It's a waste of time and effort to switch back to text console
+	 * if the kernel should reboot before panic messages can be seen.
+	 */
+	if (panic_timeout < 0)
+		return 0;
+
 	printk(KERN_ERR "panic occurred, switching back to text console\n");
 	return drm_fb_helper_force_kernel_mode();
 }
diff --git a/drivers/gpu/drm/drm_fops.c b/drivers/gpu/drm/drm_fops.c
index 4911e1d1dcf2..c00cf154cc0b 100644
--- a/drivers/gpu/drm/drm_fops.c
+++ b/drivers/gpu/drm/drm_fops.c
@@ -182,7 +182,7 @@ int drm_stub_open(struct inode *inode, struct file *filp)
 		goto out;
 
 	old_fops = filp->f_op;
-	filp->f_op = fops_get(&dev->driver->fops);
+	filp->f_op = fops_get(dev->driver->fops);
 	if (filp->f_op == NULL) {
 		filp->f_op = old_fops;
 		goto out;
diff --git a/drivers/gpu/drm/drm_ioctl.c b/drivers/gpu/drm/drm_ioctl.c
index 904d7e9c8e47..956fd38d7c9e 100644
--- a/drivers/gpu/drm/drm_ioctl.c
+++ b/drivers/gpu/drm/drm_ioctl.c
@@ -158,14 +158,11 @@ int drm_getmap(struct drm_device *dev, void *data,
 	int i;
 
 	idx = map->offset;
-
-	mutex_lock(&dev->struct_mutex);
-	if (idx < 0) {
-		mutex_unlock(&dev->struct_mutex);
+	if (idx < 0)
 		return -EINVAL;
-	}
 
 	i = 0;
+	mutex_lock(&dev->struct_mutex);
 	list_for_each(list, &dev->maplist) {
 		if (i == idx) {
 			r_list = list_entry(list, struct drm_map_list, head);
@@ -211,9 +208,9 @@ int drm_getclient(struct drm_device *dev, void *data,
 	int i;
 
 	idx = client->idx;
-	mutex_lock(&dev->struct_mutex);
-
 	i = 0;
+
+	mutex_lock(&dev->struct_mutex);
 	list_for_each_entry(pt, &dev->filelist, lhead) {
 		if (i++ >= idx) {
 			client->auth = pt->authenticated;
@@ -249,8 +246,6 @@ int drm_getstats(struct drm_device *dev, void *data,
 
 	memset(stats, 0, sizeof(*stats));
 
-	mutex_lock(&dev->struct_mutex);
-
 	for (i = 0; i < dev->counters; i++) {
 		if (dev->types[i] == _DRM_STAT_LOCK)
 			stats->data[i].value =
@@ -262,8 +257,6 @@ int drm_getstats(struct drm_device *dev, void *data,
 
 	stats->count = dev->counters;
 
-	mutex_unlock(&dev->struct_mutex);
-
 	return 0;
 }
 
diff --git a/drivers/gpu/drm/drm_lock.c b/drivers/gpu/drm/drm_lock.c
index 632ae243ede0..c79c713eeba0 100644
--- a/drivers/gpu/drm/drm_lock.c
+++ b/drivers/gpu/drm/drm_lock.c
@@ -33,6 +33,7 @@
  * OTHER DEALINGS IN THE SOFTWARE.
  */
 
+#include <linux/export.h>
 #include "drmP.h"
 
 static int drm_notifier(void *priv);
@@ -345,6 +346,7 @@ void drm_idlelock_take(struct drm_lock_data *lock_data)
 	}
 	spin_unlock_bh(&lock_data->spinlock);
 }
+EXPORT_SYMBOL(drm_idlelock_take);
 
 void drm_idlelock_release(struct drm_lock_data *lock_data)
 {
@@ -364,6 +366,7 @@ void drm_idlelock_release(struct drm_lock_data *lock_data)
 	}
 	spin_unlock_bh(&lock_data->spinlock);
 }
+EXPORT_SYMBOL(drm_idlelock_release);
 
 int drm_i_have_hw_lock(struct drm_device *dev, struct drm_file *file_priv)
 {
diff --git a/drivers/gpu/drm/drm_sman.c b/drivers/gpu/drm/drm_sman.c
deleted file mode 100644
index cebce45f4429..000000000000
--- a/drivers/gpu/drm/drm_sman.c
+++ /dev/null
@@ -1,351 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2006 Tungsten Graphics, Inc., Bismarck., ND., USA.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
- * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
- * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
- * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
- * USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- *
- **************************************************************************/
-/*
- * Simple memory manager interface that keeps track on allocate regions on a
- * per "owner" basis. All regions associated with an "owner" can be released
- * with a simple call. Typically if the "owner" exists. The owner is any
- * "unsigned long" identifier. Can typically be a pointer to a file private
- * struct or a context identifier.
- *
- * Authors:
- * Thomas Hellström <thomas-at-tungstengraphics-dot-com>
- */
-
-#include <linux/export.h>
-#include "drm_sman.h"
-
-struct drm_owner_item {
-	struct drm_hash_item owner_hash;
-	struct list_head sman_list;
-	struct list_head mem_blocks;
-};
-
-void drm_sman_takedown(struct drm_sman * sman)
-{
-	drm_ht_remove(&sman->user_hash_tab);
-	drm_ht_remove(&sman->owner_hash_tab);
-	kfree(sman->mm);
-}
-
-EXPORT_SYMBOL(drm_sman_takedown);
-
-int
-drm_sman_init(struct drm_sman * sman, unsigned int num_managers,
-	      unsigned int user_order, unsigned int owner_order)
-{
-	int ret = 0;
-
-	sman->mm = kcalloc(num_managers, sizeof(*sman->mm), GFP_KERNEL);
-	if (!sman->mm) {
-		ret = -ENOMEM;
-		goto out;
-	}
-	sman->num_managers = num_managers;
-	INIT_LIST_HEAD(&sman->owner_items);
-	ret = drm_ht_create(&sman->owner_hash_tab, owner_order);
-	if (ret)
-		goto out1;
-	ret = drm_ht_create(&sman->user_hash_tab, user_order);
-	if (!ret)
-		goto out;
-
-	drm_ht_remove(&sman->owner_hash_tab);
-out1:
-	kfree(sman->mm);
-out:
-	return ret;
-}
-
-EXPORT_SYMBOL(drm_sman_init);
-
-static void *drm_sman_mm_allocate(void *private, unsigned long size,
-				  unsigned alignment)
-{
-	struct drm_mm *mm = (struct drm_mm *) private;
-	struct drm_mm_node *tmp;
-
-	tmp = drm_mm_search_free(mm, size, alignment, 1);
-	if (!tmp) {
-		return NULL;
-	}
-	tmp = drm_mm_get_block(tmp, size, alignment);
-	return tmp;
-}
-
-static void drm_sman_mm_free(void *private, void *ref)
-{
-	struct drm_mm_node *node = (struct drm_mm_node *) ref;
-
-	drm_mm_put_block(node);
-}
-
-static void drm_sman_mm_destroy(void *private)
-{
-	struct drm_mm *mm = (struct drm_mm *) private;
-	drm_mm_takedown(mm);
-	kfree(mm);
-}
-
-static unsigned long drm_sman_mm_offset(void *private, void *ref)
-{
-	struct drm_mm_node *node = (struct drm_mm_node *) ref;
-	return node->start;
-}
-
-int
-drm_sman_set_range(struct drm_sman * sman, unsigned int manager,
-		   unsigned long start, unsigned long size)
-{
-	struct drm_sman_mm *sman_mm;
-	struct drm_mm *mm;
-	int ret;
-
-	BUG_ON(manager >= sman->num_managers);
-
-	sman_mm = &sman->mm[manager];
-	mm = kzalloc(sizeof(*mm), GFP_KERNEL);
-	if (!mm) {
-		return -ENOMEM;
-	}
-	sman_mm->private = mm;
-	ret = drm_mm_init(mm, start, size);
-
-	if (ret) {
-		kfree(mm);
-		return ret;
-	}
-
-	sman_mm->allocate = drm_sman_mm_allocate;
-	sman_mm->free = drm_sman_mm_free;
-	sman_mm->destroy = drm_sman_mm_destroy;
-	sman_mm->offset = drm_sman_mm_offset;
-
-	return 0;
-}
-
-EXPORT_SYMBOL(drm_sman_set_range);
-
-int
-drm_sman_set_manager(struct drm_sman * sman, unsigned int manager,
-		     struct drm_sman_mm * allocator)
-{
-	BUG_ON(manager >= sman->num_managers);
-	sman->mm[manager] = *allocator;
-
-	return 0;
-}
-EXPORT_SYMBOL(drm_sman_set_manager);
-
-static struct drm_owner_item *drm_sman_get_owner_item(struct drm_sman * sman,
-						 unsigned long owner)
-{
-	int ret;
-	struct drm_hash_item *owner_hash_item;
-	struct drm_owner_item *owner_item;
-
-	ret = drm_ht_find_item(&sman->owner_hash_tab, owner, &owner_hash_item);
-	if (!ret) {
-		return drm_hash_entry(owner_hash_item, struct drm_owner_item,
-				      owner_hash);
-	}
-
-	owner_item = kzalloc(sizeof(*owner_item), GFP_KERNEL);
-	if (!owner_item)
-		goto out;
-
-	INIT_LIST_HEAD(&owner_item->mem_blocks);
-	owner_item->owner_hash.key = owner;
-	if (drm_ht_insert_item(&sman->owner_hash_tab, &owner_item->owner_hash))
-		goto out1;
-
-	list_add_tail(&owner_item->sman_list, &sman->owner_items);
-	return owner_item;
-
-out1:
-	kfree(owner_item);
-out:
-	return NULL;
-}
-
-struct drm_memblock_item *drm_sman_alloc(struct drm_sman *sman, unsigned int manager,
-				    unsigned long size, unsigned alignment,
-				    unsigned long owner)
-{
-	void *tmp;
-	struct drm_sman_mm *sman_mm;
-	struct drm_owner_item *owner_item;
-	struct drm_memblock_item *memblock;
-
-	BUG_ON(manager >= sman->num_managers);
-
-	sman_mm = &sman->mm[manager];
-	tmp = sman_mm->allocate(sman_mm->private, size, alignment);
-
-	if (!tmp) {
-		return NULL;
-	}
-
-	memblock = kzalloc(sizeof(*memblock), GFP_KERNEL);
-
-	if (!memblock)
-		goto out;
-
-	memblock->mm_info = tmp;
-	memblock->mm = sman_mm;
-	memblock->sman = sman;
-
-	if (drm_ht_just_insert_please
-	    (&sman->user_hash_tab, &memblock->user_hash,
-	     (unsigned long)memblock, 32, 0, 0))
-		goto out1;
-
-	owner_item = drm_sman_get_owner_item(sman, owner);
-	if (!owner_item)
-		goto out2;
-
-	list_add_tail(&memblock->owner_list, &owner_item->mem_blocks);
-
-	return memblock;
-
-out2:
-	drm_ht_remove_item(&sman->user_hash_tab, &memblock->user_hash);
-out1:
-	kfree(memblock);
-out:
-	sman_mm->free(sman_mm->private, tmp);
-
-	return NULL;
-}
-
-EXPORT_SYMBOL(drm_sman_alloc);
-
-static void drm_sman_free(struct drm_memblock_item *item)
-{
-	struct drm_sman *sman = item->sman;
-
-	list_del(&item->owner_list);
-	drm_ht_remove_item(&sman->user_hash_tab, &item->user_hash);
-	item->mm->free(item->mm->private, item->mm_info);
-	kfree(item);
-}
-
-int drm_sman_free_key(struct drm_sman *sman, unsigned int key)
-{
-	struct drm_hash_item *hash_item;
-	struct drm_memblock_item *memblock_item;
-
-	if (drm_ht_find_item(&sman->user_hash_tab, key, &hash_item))
-		return -EINVAL;
-
-	memblock_item = drm_hash_entry(hash_item, struct drm_memblock_item,
-				       user_hash);
-	drm_sman_free(memblock_item);
-	return 0;
-}
-
-EXPORT_SYMBOL(drm_sman_free_key);
-
-static void drm_sman_remove_owner(struct drm_sman *sman,
-				  struct drm_owner_item *owner_item)
-{
-	list_del(&owner_item->sman_list);
-	drm_ht_remove_item(&sman->owner_hash_tab, &owner_item->owner_hash);
-	kfree(owner_item);
-}
-
-int drm_sman_owner_clean(struct drm_sman *sman, unsigned long owner)
-{
-
-	struct drm_hash_item *hash_item;
-	struct drm_owner_item *owner_item;
-
-	if (drm_ht_find_item(&sman->owner_hash_tab, owner, &hash_item)) {
-		return -1;
-	}
-
-	owner_item = drm_hash_entry(hash_item, struct drm_owner_item, owner_hash);
-	if (owner_item->mem_blocks.next == &owner_item->mem_blocks) {
-		drm_sman_remove_owner(sman, owner_item);
-		return -1;
-	}
-
-	return 0;
-}
-
-EXPORT_SYMBOL(drm_sman_owner_clean);
-
-static void drm_sman_do_owner_cleanup(struct drm_sman *sman,
-				      struct drm_owner_item *owner_item)
-{
-	struct drm_memblock_item *entry, *next;
-
-	list_for_each_entry_safe(entry, next, &owner_item->mem_blocks,
-				 owner_list) {
-		drm_sman_free(entry);
-	}
-	drm_sman_remove_owner(sman, owner_item);
-}
-
-void drm_sman_owner_cleanup(struct drm_sman *sman, unsigned long owner)
-{
-
-	struct drm_hash_item *hash_item;
-	struct drm_owner_item *owner_item;
-
-	if (drm_ht_find_item(&sman->owner_hash_tab, owner, &hash_item)) {
-
-		return;
-	}
-
-	owner_item = drm_hash_entry(hash_item, struct drm_owner_item, owner_hash);
-	drm_sman_do_owner_cleanup(sman, owner_item);
-}
-
-EXPORT_SYMBOL(drm_sman_owner_cleanup);
-
-void drm_sman_cleanup(struct drm_sman *sman)
-{
-	struct drm_owner_item *entry, *next;
-	unsigned int i;
-	struct drm_sman_mm *sman_mm;
-
-	list_for_each_entry_safe(entry, next, &sman->owner_items, sman_list) {
-		drm_sman_do_owner_cleanup(sman, entry);
-	}
-	if (sman->mm) {
-		for (i = 0; i < sman->num_managers; ++i) {
-			sman_mm = &sman->mm[i];
-			if (sman_mm->private) {
-				sman_mm->destroy(sman_mm->private);
-				sman_mm->private = NULL;
-			}
-		}
-	}
-}
-
-EXPORT_SYMBOL(drm_sman_cleanup);
diff --git a/drivers/gpu/drm/exynos/Kconfig b/drivers/gpu/drm/exynos/Kconfig
index 847466aab435..f9aaa56eae07 100644
--- a/drivers/gpu/drm/exynos/Kconfig
+++ b/drivers/gpu/drm/exynos/Kconfig
@@ -18,3 +18,10 @@ config DRM_EXYNOS_FIMD
 	help
 	  Choose this option if you want to use Exynos FIMD for DRM.
 	  If M is selected, the module will be called exynos_drm_fimd
+
+config DRM_EXYNOS_HDMI
+	tristate "Exynos DRM HDMI"
+	depends on DRM_EXYNOS
+	help
+	  Choose this option if you want to use Exynos HDMI for DRM.
+	  If M is selected, the module will be called exynos_drm_hdmi
diff --git a/drivers/gpu/drm/exynos/Makefile b/drivers/gpu/drm/exynos/Makefile
index 0496d3ff2683..395e69c9a96e 100644
--- a/drivers/gpu/drm/exynos/Makefile
+++ b/drivers/gpu/drm/exynos/Makefile
@@ -5,7 +5,10 @@
 ccflags-y := -Iinclude/drm -Idrivers/gpu/drm/exynos
 exynosdrm-y := exynos_drm_drv.o exynos_drm_encoder.o exynos_drm_connector.o \
 		exynos_drm_crtc.o exynos_drm_fbdev.o exynos_drm_fb.o \
-		exynos_drm_buf.o exynos_drm_gem.o exynos_drm_core.o
+		exynos_drm_buf.o exynos_drm_gem.o exynos_drm_core.o \
+		exynos_drm_plane.o
 
 obj-$(CONFIG_DRM_EXYNOS) += exynosdrm.o
 obj-$(CONFIG_DRM_EXYNOS_FIMD) += exynos_drm_fimd.o
+obj-$(CONFIG_DRM_EXYNOS_HDMI) += exynos_hdmi.o exynos_mixer.o exynos_ddc.o \
+				 exynos_hdmiphy.o exynos_drm_hdmi.o
diff --git a/drivers/gpu/drm/exynos/exynos_ddc.c b/drivers/gpu/drm/exynos/exynos_ddc.c
new file mode 100644
index 000000000000..84b614fe26fd
--- /dev/null
+++ b/drivers/gpu/drm/exynos/exynos_ddc.c
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2011 Samsung Electronics Co.Ltd
+ * Authors:
+ *	Seung-Woo Kim <sw0312.kim@samsung.com>
+ *	Inki Dae <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include "drmP.h"
+
+#include <linux/kernel.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+
+
+#include "exynos_drm_drv.h"
+#include "exynos_hdmi.h"
+
+static int s5p_ddc_probe(struct i2c_client *client,
+			const struct i2c_device_id *dev_id)
+{
+	hdmi_attach_ddc_client(client);
+
+	dev_info(&client->adapter->dev, "attached s5p_ddc "
+		"into i2c adapter successfully\n");
+
+	return 0;
+}
+
+static int s5p_ddc_remove(struct i2c_client *client)
+{
+	dev_info(&client->adapter->dev, "detached s5p_ddc "
+		"from i2c adapter successfully\n");
+
+	return 0;
+}
+
+static struct i2c_device_id ddc_idtable[] = {
+	{"s5p_ddc", 0},
+	{ },
+};
+
+struct i2c_driver ddc_driver = {
+	.driver = {
+		.name = "s5p_ddc",
+		.owner = THIS_MODULE,
+	},
+	.id_table	= ddc_idtable,
+	.probe		= s5p_ddc_probe,
+	.remove		= __devexit_p(s5p_ddc_remove),
+	.command		= NULL,
+};
+EXPORT_SYMBOL(ddc_driver);
diff --git a/drivers/gpu/drm/exynos/exynos_drm_buf.c b/drivers/gpu/drm/exynos/exynos_drm_buf.c
index 2bb07bca511a..3cf785c58186 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_buf.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_buf.c
@@ -73,7 +73,7 @@ struct exynos_drm_gem_buf *exynos_drm_buf_create(struct drm_device *dev,
 	buffer = kzalloc(sizeof(*buffer), GFP_KERNEL);
 	if (!buffer) {
 		DRM_ERROR("failed to allocate exynos_drm_gem_buf.\n");
-		return ERR_PTR(-ENOMEM);
+		return NULL;
 	}
 
 	buffer->size = size;
@@ -84,8 +84,7 @@ struct exynos_drm_gem_buf *exynos_drm_buf_create(struct drm_device *dev,
 	 */
 	if (lowlevel_buffer_allocate(dev, buffer) < 0) {
 		kfree(buffer);
-		buffer = NULL;
-		return ERR_PTR(-ENOMEM);
+		return NULL;
 	}
 
 	return buffer;
diff --git a/drivers/gpu/drm/exynos/exynos_drm_buf.h b/drivers/gpu/drm/exynos/exynos_drm_buf.h
index 6e91f9caa5db..c913f2bad760 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_buf.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_buf.h
@@ -30,9 +30,6 @@
 struct exynos_drm_gem_buf *exynos_drm_buf_create(struct drm_device *dev,
 		unsigned int size);
 
-/* get memory information of a drm framebuffer. */
-struct exynos_drm_gem_buf *exynos_drm_fb_get_buf(struct drm_framebuffer *fb);
-
 /* remove allocated physical memory. */
 void exynos_drm_buf_destroy(struct drm_device *dev,
 		struct exynos_drm_gem_buf *buffer);
diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
index ee43cc220853..e3861ac49295 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c
@@ -34,7 +34,6 @@
 #include "exynos_drm_fb.h"
 #include "exynos_drm_encoder.h"
 #include "exynos_drm_gem.h"
-#include "exynos_drm_buf.h"
 
 #define to_exynos_crtc(x)	container_of(x, struct exynos_drm_crtc,\
 				drm_crtc)
@@ -52,11 +51,13 @@
  *	drm framework doesn't support multiple irq yet.
  *	we can refer to the crtc to current hardware interrupt occured through
  *	this pipe value.
+ * @dpms: store the crtc dpms value
  */
 struct exynos_drm_crtc {
 	struct drm_crtc			drm_crtc;
 	struct exynos_drm_overlay	overlay;
 	unsigned int			pipe;
+	unsigned int			dpms;
 };
 
 static void exynos_drm_crtc_apply(struct drm_crtc *crtc)
@@ -78,19 +79,23 @@ int exynos_drm_overlay_update(struct exynos_drm_overlay *overlay,
 	struct exynos_drm_gem_buf *buffer;
 	unsigned int actual_w;
 	unsigned int actual_h;
+	int nr = exynos_drm_format_num_buffers(fb->pixel_format);
+	int i;
+
+	for (i = 0; i < nr; i++) {
+		buffer = exynos_drm_fb_buffer(fb, i);
+		if (!buffer) {
+			DRM_LOG_KMS("buffer is null\n");
+			return -EFAULT;
+		}
 
-	buffer = exynos_drm_fb_get_buf(fb);
-	if (!buffer) {
-		DRM_LOG_KMS("buffer is null.\n");
-		return -EFAULT;
-	}
-
-	overlay->dma_addr = buffer->dma_addr;
-	overlay->vaddr = buffer->kvaddr;
+		overlay->dma_addr[i] = buffer->dma_addr;
+		overlay->vaddr[i] = buffer->kvaddr;
 
-	DRM_DEBUG_KMS("vaddr = 0x%lx, dma_addr = 0x%lx\n",
-			(unsigned long)overlay->vaddr,
-			(unsigned long)overlay->dma_addr);
+		DRM_DEBUG_KMS("buffer: %d, vaddr = 0x%lx, dma_addr = 0x%lx\n",
+				i, (unsigned long)overlay->vaddr[i],
+				(unsigned long)overlay->dma_addr[i]);
+	}
 
 	actual_w = min((mode->hdisplay - pos->crtc_x), pos->crtc_w);
 	actual_h = min((mode->vdisplay - pos->crtc_y), pos->crtc_h);
@@ -101,7 +106,8 @@ int exynos_drm_overlay_update(struct exynos_drm_overlay *overlay,
 	overlay->fb_width = fb->width;
 	overlay->fb_height = fb->height;
 	overlay->bpp = fb->bits_per_pixel;
-	overlay->pitch = fb->pitch;
+	overlay->pitch = fb->pitches[0];
+	overlay->pixel_format = fb->pixel_format;
 
 	/* set overlay range to be displayed. */
 	overlay->crtc_x = pos->crtc_x;
@@ -153,26 +159,37 @@ static int exynos_drm_crtc_update(struct drm_crtc *crtc)
 
 static void exynos_drm_crtc_dpms(struct drm_crtc *crtc, int mode)
 {
+	struct drm_device *dev = crtc->dev;
 	struct exynos_drm_crtc *exynos_crtc = to_exynos_crtc(crtc);
 
 	DRM_DEBUG_KMS("crtc[%d] mode[%d]\n", crtc->base.id, mode);
 
+	if (exynos_crtc->dpms == mode) {
+		DRM_DEBUG_KMS("desired dpms mode is same as previous one.\n");
+		return;
+	}
+
+	mutex_lock(&dev->struct_mutex);
+
 	switch (mode) {
 	case DRM_MODE_DPMS_ON:
-		exynos_drm_fn_encoder(crtc, &exynos_crtc->pipe,
-				exynos_drm_encoder_crtc_commit);
+		exynos_drm_fn_encoder(crtc, &mode,
+				exynos_drm_encoder_crtc_dpms);
+		exynos_crtc->dpms = mode;
 		break;
 	case DRM_MODE_DPMS_STANDBY:
 	case DRM_MODE_DPMS_SUSPEND:
 	case DRM_MODE_DPMS_OFF:
-		/* TODO */
-		exynos_drm_fn_encoder(crtc, NULL,
-				exynos_drm_encoder_crtc_disable);
+		exynos_drm_fn_encoder(crtc, &mode,
+				exynos_drm_encoder_crtc_dpms);
+		exynos_crtc->dpms = mode;
 		break;
 	default:
-		DRM_DEBUG_KMS("unspecified mode %d\n", mode);
+		DRM_ERROR("unspecified mode %d\n", mode);
 		break;
 	}
+
+	mutex_unlock(&dev->struct_mutex);
 }
 
 static void exynos_drm_crtc_prepare(struct drm_crtc *crtc)
@@ -188,6 +205,28 @@ static void exynos_drm_crtc_commit(struct drm_crtc *crtc)
 
 	DRM_DEBUG_KMS("%s\n", __FILE__);
 
+	/*
+	 * when set_crtc is requested from user or at booting time,
+	 * crtc->commit would be called without dpms call so if dpms is
+	 * no power on then crtc->dpms should be called
+	 * with DRM_MODE_DPMS_ON for the hardware power to be on.
+	 */
+	if (exynos_crtc->dpms != DRM_MODE_DPMS_ON) {
+		int mode = DRM_MODE_DPMS_ON;
+
+		/*
+		 * enable hardware(power on) to all encoders hdmi connected
+		 * to current crtc.
+		 */
+		exynos_drm_crtc_dpms(crtc, mode);
+		/*
+		 * enable dma to all encoders connected to current crtc and
+		 * lcd panel.
+		 */
+		exynos_drm_fn_encoder(crtc, &mode,
+					exynos_drm_encoder_dpms_from_crtc);
+	}
+
 	exynos_drm_fn_encoder(crtc, &exynos_crtc->pipe,
 			exynos_drm_encoder_crtc_commit);
 }
@@ -344,6 +383,8 @@ int exynos_drm_crtc_create(struct drm_device *dev, unsigned int nr)
 	}
 
 	exynos_crtc->pipe = nr;
+	exynos_crtc->dpms = DRM_MODE_DPMS_OFF;
+	exynos_crtc->overlay.zpos = DEFAULT_ZPOS;
 	crtc = &exynos_crtc->drm_crtc;
 
 	private->crtc[nr] = crtc;
@@ -357,9 +398,14 @@ int exynos_drm_crtc_create(struct drm_device *dev, unsigned int nr)
 int exynos_drm_crtc_enable_vblank(struct drm_device *dev, int crtc)
 {
 	struct exynos_drm_private *private = dev->dev_private;
+	struct exynos_drm_crtc *exynos_crtc =
+		to_exynos_crtc(private->crtc[crtc]);
 
 	DRM_DEBUG_KMS("%s\n", __FILE__);
 
+	if (exynos_crtc->dpms != DRM_MODE_DPMS_ON)
+		return -EPERM;
+
 	exynos_drm_fn_encoder(private->crtc[crtc], &crtc,
 			exynos_drm_enable_vblank);
 
@@ -369,9 +415,14 @@ int exynos_drm_crtc_enable_vblank(struct drm_device *dev, int crtc)
 void exynos_drm_crtc_disable_vblank(struct drm_device *dev, int crtc)
 {
 	struct exynos_drm_private *private = dev->dev_private;
+	struct exynos_drm_crtc *exynos_crtc =
+		to_exynos_crtc(private->crtc[crtc]);
 
 	DRM_DEBUG_KMS("%s\n", __FILE__);
 
+	if (exynos_crtc->dpms != DRM_MODE_DPMS_ON)
+		return;
+
 	exynos_drm_fn_encoder(private->crtc[crtc], &crtc,
 			exynos_drm_disable_vblank);
 }
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.c b/drivers/gpu/drm/exynos/exynos_drm_drv.c
index 53e2216de61d..35889ca255e9 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.c
@@ -36,13 +36,16 @@
 #include "exynos_drm_fbdev.h"
 #include "exynos_drm_fb.h"
 #include "exynos_drm_gem.h"
+#include "exynos_drm_plane.h"
 
-#define DRIVER_NAME	"exynos-drm"
+#define DRIVER_NAME	"exynos"
 #define DRIVER_DESC	"Samsung SoC DRM"
 #define DRIVER_DATE	"20110530"
 #define DRIVER_MAJOR	1
 #define DRIVER_MINOR	0
 
+#define VBLANK_OFF_DELAY	50000
+
 static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
 {
 	struct exynos_drm_private *private;
@@ -77,6 +80,12 @@ static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
 			goto err_crtc;
 	}
 
+	for (nr = 0; nr < MAX_PLANE; nr++) {
+		ret = exynos_plane_init(dev, nr);
+		if (ret)
+			goto err_crtc;
+	}
+
 	ret = drm_vblank_init(dev, MAX_CRTC);
 	if (ret)
 		goto err_crtc;
@@ -100,6 +109,8 @@ static int exynos_drm_load(struct drm_device *dev, unsigned long flags)
 		goto err_drm_device;
 	}
 
+	drm_vblank_offdelay = VBLANK_OFF_DELAY;
+
 	return 0;
 
 err_drm_device:
@@ -163,6 +174,18 @@ static struct drm_ioctl_desc exynos_ioctls[] = {
 			DRM_AUTH),
 	DRM_IOCTL_DEF_DRV(EXYNOS_GEM_MMAP,
 			exynos_drm_gem_mmap_ioctl, DRM_UNLOCKED | DRM_AUTH),
+	DRM_IOCTL_DEF_DRV(EXYNOS_PLANE_SET_ZPOS, exynos_plane_set_zpos_ioctl,
+			DRM_UNLOCKED | DRM_AUTH),
+};
+
+static const struct file_operations exynos_drm_driver_fops = {
+	.owner		= THIS_MODULE,
+	.open		= drm_open,
+	.mmap		= exynos_drm_gem_mmap,
+	.poll		= drm_poll,
+	.read		= drm_read,
+	.unlocked_ioctl	= drm_ioctl,
+	.release	= drm_release,
 };
 
 static struct drm_driver exynos_drm_driver = {
@@ -182,15 +205,7 @@ static struct drm_driver exynos_drm_driver = {
 	.dumb_map_offset	= exynos_drm_gem_dumb_map_offset,
 	.dumb_destroy		= exynos_drm_gem_dumb_destroy,
 	.ioctls			= exynos_ioctls,
-	.fops = {
-		.owner		= THIS_MODULE,
-		.open		= drm_open,
-		.mmap		= exynos_drm_gem_mmap,
-		.poll		= drm_poll,
-		.read		= drm_read,
-		.unlocked_ioctl	= drm_ioctl,
-		.release	= drm_release,
-	},
+	.fops			= &exynos_drm_driver_fops,
 	.name	= DRIVER_NAME,
 	.desc	= DRIVER_DESC,
 	.date	= DRIVER_DATE,
diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h
index 5e02e6ecc2e0..e685e1e33055 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_drv.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h
@@ -33,11 +33,16 @@
 #include "drm.h"
 
 #define MAX_CRTC	2
+#define MAX_PLANE	5
+#define MAX_FB_BUFFER	3
+#define DEFAULT_ZPOS	-1
 
 struct drm_device;
 struct exynos_drm_overlay;
 struct drm_connector;
 
+extern unsigned int drm_vblank_offdelay;
+
 /* this enumerates display type. */
 enum exynos_drm_output_type {
 	EXYNOS_DISPLAY_TYPE_NONE,
@@ -57,8 +62,8 @@ enum exynos_drm_output_type {
 struct exynos_drm_overlay_ops {
 	void (*mode_set)(struct device *subdrv_dev,
 			 struct exynos_drm_overlay *overlay);
-	void (*commit)(struct device *subdrv_dev);
-	void (*disable)(struct device *subdrv_dev);
+	void (*commit)(struct device *subdrv_dev, int zpos);
+	void (*disable)(struct device *subdrv_dev, int zpos);
 };
 
 /*
@@ -80,9 +85,11 @@ struct exynos_drm_overlay_ops {
  * @scan_flag: interlace or progressive way.
  *	(it could be DRM_MODE_FLAG_*)
  * @bpp: pixel size.(in bit)
- * @dma_addr: bus(accessed by dma) address to the memory region allocated
- *	for a overlay.
- * @vaddr: virtual memory addresss to this overlay.
+ * @pixel_format: fourcc pixel format of this overlay
+ * @dma_addr: array of bus(accessed by dma) address to the memory region
+ *	      allocated for a overlay.
+ * @vaddr: array of virtual memory addresss to this overlay.
+ * @zpos: order of overlay layer(z position).
  * @default_win: a window to be enabled.
  * @color_key: color key on or off.
  * @index_color: if using color key feature then this value would be used
@@ -109,8 +116,10 @@ struct exynos_drm_overlay {
 	unsigned int scan_flag;
 	unsigned int bpp;
 	unsigned int pitch;
-	dma_addr_t dma_addr;
-	void __iomem *vaddr;
+	uint32_t pixel_format;
+	dma_addr_t dma_addr[MAX_FB_BUFFER];
+	void __iomem *vaddr[MAX_FB_BUFFER];
+	int zpos;
 
 	bool default_win;
 	bool color_key;
@@ -144,17 +153,19 @@ struct exynos_drm_display_ops {
 /*
  * Exynos drm manager ops
  *
+ * @dpms: control device power.
+ * @apply: set timing, vblank and overlay data to registers.
  * @mode_set: convert drm_display_mode to hw specific display mode and
  *	      would be called by encoder->mode_set().
  * @commit: set current hw specific display mode to hw.
- * @disable: disable hardware specific display mode.
  * @enable_vblank: specific driver callback for enabling vblank interrupt.
  * @disable_vblank: specific driver callback for disabling vblank interrupt.
  */
 struct exynos_drm_manager_ops {
+	void (*dpms)(struct device *subdrv_dev, int mode);
+	void (*apply)(struct device *subdrv_dev);
 	void (*mode_set)(struct device *subdrv_dev, void *mode);
 	void (*commit)(struct device *subdrv_dev);
-	void (*disable)(struct device *subdrv_dev);
 	int (*enable_vblank)(struct device *subdrv_dev);
 	void (*disable_vblank)(struct device *subdrv_dev);
 };
diff --git a/drivers/gpu/drm/exynos/exynos_drm_encoder.c b/drivers/gpu/drm/exynos/exynos_drm_encoder.c
index 153061415baf..86b93dde219a 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_encoder.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_encoder.c
@@ -42,49 +42,68 @@
  * @drm_encoder: encoder object.
  * @manager: specific encoder has its own manager to control a hardware
  *	appropriately and we can access a hardware drawing on this manager.
+ * @dpms: store the encoder dpms value.
  */
 struct exynos_drm_encoder {
 	struct drm_encoder		drm_encoder;
 	struct exynos_drm_manager	*manager;
+	int dpms;
 };
 
-static void exynos_drm_encoder_dpms(struct drm_encoder *encoder, int mode)
+static void exynos_drm_display_power(struct drm_encoder *encoder, int mode)
 {
 	struct drm_device *dev = encoder->dev;
 	struct drm_connector *connector;
 	struct exynos_drm_manager *manager = exynos_drm_get_manager(encoder);
+
+	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+		if (connector->encoder == encoder) {
+			struct exynos_drm_display_ops *display_ops =
+							manager->display_ops;
+
+			DRM_DEBUG_KMS("connector[%d] dpms[%d]\n",
+					connector->base.id, mode);
+			if (display_ops && display_ops->power_on)
+				display_ops->power_on(manager->dev, mode);
+		}
+	}
+}
+
+static void exynos_drm_encoder_dpms(struct drm_encoder *encoder, int mode)
+{
+	struct drm_device *dev = encoder->dev;
+	struct exynos_drm_manager *manager = exynos_drm_get_manager(encoder);
 	struct exynos_drm_manager_ops *manager_ops = manager->ops;
+	struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder);
 
 	DRM_DEBUG_KMS("%s, encoder dpms: %d\n", __FILE__, mode);
 
+	if (exynos_encoder->dpms == mode) {
+		DRM_DEBUG_KMS("desired dpms mode is same as previous one.\n");
+		return;
+	}
+
+	mutex_lock(&dev->struct_mutex);
+
 	switch (mode) {
 	case DRM_MODE_DPMS_ON:
-		if (manager_ops && manager_ops->commit)
-			manager_ops->commit(manager->dev);
+		if (manager_ops && manager_ops->apply)
+			manager_ops->apply(manager->dev);
+		exynos_drm_display_power(encoder, mode);
+		exynos_encoder->dpms = mode;
 		break;
 	case DRM_MODE_DPMS_STANDBY:
 	case DRM_MODE_DPMS_SUSPEND:
 	case DRM_MODE_DPMS_OFF:
-		/* TODO */
-		if (manager_ops && manager_ops->disable)
-			manager_ops->disable(manager->dev);
+		exynos_drm_display_power(encoder, mode);
+		exynos_encoder->dpms = mode;
 		break;
 	default:
 		DRM_ERROR("unspecified mode %d\n", mode);
 		break;
 	}
 
-	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
-		if (connector->encoder == encoder) {
-			struct exynos_drm_display_ops *display_ops =
-							manager->display_ops;
-
-			DRM_DEBUG_KMS("connector[%d] dpms[%d]\n",
-					connector->base.id, mode);
-			if (display_ops && display_ops->power_on)
-				display_ops->power_on(manager->dev, mode);
-		}
-	}
+	mutex_unlock(&dev->struct_mutex);
 }
 
 static bool
@@ -169,7 +188,6 @@ static void exynos_drm_encoder_destroy(struct drm_encoder *encoder)
 	exynos_encoder->manager->pipe = -1;
 
 	drm_encoder_cleanup(encoder);
-	encoder->dev->mode_config.num_encoder--;
 	kfree(exynos_encoder);
 }
 
@@ -199,6 +217,7 @@ exynos_drm_encoder_create(struct drm_device *dev,
 		return NULL;
 	}
 
+	exynos_encoder->dpms = DRM_MODE_DPMS_OFF;
 	exynos_encoder->manager = manager;
 	encoder = &exynos_encoder->drm_encoder;
 	encoder->possible_crtcs = possible_crtcs;
@@ -275,12 +294,27 @@ void exynos_drm_disable_vblank(struct drm_encoder *encoder, void *data)
 		manager_ops->disable_vblank(manager->dev);
 }
 
-void exynos_drm_encoder_crtc_commit(struct drm_encoder *encoder, void *data)
+void exynos_drm_encoder_crtc_plane_commit(struct drm_encoder *encoder,
+					  void *data)
 {
 	struct exynos_drm_manager *manager =
 		to_exynos_encoder(encoder)->manager;
 	struct exynos_drm_overlay_ops *overlay_ops = manager->overlay_ops;
+	int zpos = DEFAULT_ZPOS;
+
+	if (data)
+		zpos = *(int *)data;
+
+	if (overlay_ops && overlay_ops->commit)
+		overlay_ops->commit(manager->dev, zpos);
+}
+
+void exynos_drm_encoder_crtc_commit(struct drm_encoder *encoder, void *data)
+{
+	struct exynos_drm_manager *manager =
+		to_exynos_encoder(encoder)->manager;
 	int crtc = *(int *)data;
+	int zpos = DEFAULT_ZPOS;
 
 	DRM_DEBUG_KMS("%s\n", __FILE__);
 
@@ -290,8 +324,53 @@ void exynos_drm_encoder_crtc_commit(struct drm_encoder *encoder, void *data)
 	 */
 	manager->pipe = crtc;
 
-	if (overlay_ops && overlay_ops->commit)
-		overlay_ops->commit(manager->dev);
+	exynos_drm_encoder_crtc_plane_commit(encoder, &zpos);
+}
+
+void exynos_drm_encoder_dpms_from_crtc(struct drm_encoder *encoder, void *data)
+{
+	struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder);
+	int mode = *(int *)data;
+
+	DRM_DEBUG_KMS("%s\n", __FILE__);
+
+	exynos_drm_encoder_dpms(encoder, mode);
+
+	exynos_encoder->dpms = mode;
+}
+
+void exynos_drm_encoder_crtc_dpms(struct drm_encoder *encoder, void *data)
+{
+	struct drm_device *dev = encoder->dev;
+	struct exynos_drm_encoder *exynos_encoder = to_exynos_encoder(encoder);
+	struct exynos_drm_manager *manager = exynos_encoder->manager;
+	struct exynos_drm_manager_ops *manager_ops = manager->ops;
+	struct drm_connector *connector;
+	int mode = *(int *)data;
+
+	DRM_DEBUG_KMS("%s\n", __FILE__);
+
+	if (manager_ops && manager_ops->dpms)
+		manager_ops->dpms(manager->dev, mode);
+
+	/*
+	 * set current dpms mode to the connector connected to
+	 * current encoder. connector->dpms would be checked
+	 * at drm_helper_connector_dpms()
+	 */
+	list_for_each_entry(connector, &dev->mode_config.connector_list, head)
+		if (connector->encoder == encoder)
+			connector->dpms = mode;
+
+	/*
+	 * if this condition is ok then it means that the crtc is already
+	 * detached from encoder and last function for detaching is properly
+	 * done, so clear pipe from manager to prevent repeated call.
+	 */
+	if (mode > DRM_MODE_DPMS_ON) {
+		if (!encoder->crtc)
+			manager->pipe = -1;
+	}
 }
 
 void exynos_drm_encoder_crtc_mode_set(struct drm_encoder *encoder, void *data)
@@ -310,19 +389,15 @@ void exynos_drm_encoder_crtc_disable(struct drm_encoder *encoder, void *data)
 	struct exynos_drm_manager *manager =
 		to_exynos_encoder(encoder)->manager;
 	struct exynos_drm_overlay_ops *overlay_ops = manager->overlay_ops;
+	int zpos = DEFAULT_ZPOS;
 
 	DRM_DEBUG_KMS("\n");
 
-	if (overlay_ops && overlay_ops->disable)
-		overlay_ops->disable(manager->dev);
+	if (data)
+		zpos = *(int *)data;
 
-	/*
-	 * crtc is already detached from encoder and last
-	 * function for detaching is properly done, so
-	 * clear pipe from manager to prevent repeated call
-	 */
-	if (!encoder->crtc)
-		manager->pipe = -1;
+	if (overlay_ops && overlay_ops->disable)
+		overlay_ops->disable(manager->dev, zpos);
 }
 
 MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
diff --git a/drivers/gpu/drm/exynos/exynos_drm_encoder.h b/drivers/gpu/drm/exynos/exynos_drm_encoder.h
index a22acfbf0e4e..97b087a51cb6 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_encoder.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_encoder.h
@@ -39,7 +39,12 @@ void exynos_drm_fn_encoder(struct drm_crtc *crtc, void *data,
 			    void (*fn)(struct drm_encoder *, void *));
 void exynos_drm_enable_vblank(struct drm_encoder *encoder, void *data);
 void exynos_drm_disable_vblank(struct drm_encoder *encoder, void *data);
+void exynos_drm_encoder_crtc_plane_commit(struct drm_encoder *encoder,
+					  void *data);
 void exynos_drm_encoder_crtc_commit(struct drm_encoder *encoder, void *data);
+void exynos_drm_encoder_dpms_from_crtc(struct drm_encoder *encoder,
+					void *data);
+void exynos_drm_encoder_crtc_dpms(struct drm_encoder *encoder, void *data);
 void exynos_drm_encoder_crtc_mode_set(struct drm_encoder *encoder, void *data);
 void exynos_drm_encoder_crtc_disable(struct drm_encoder *encoder, void *data);
 
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fb.c b/drivers/gpu/drm/exynos/exynos_drm_fb.c
index 5bf4a1ac7f82..3733fe6723d3 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fb.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fb.c
@@ -33,7 +33,6 @@
 
 #include "exynos_drm_drv.h"
 #include "exynos_drm_fb.h"
-#include "exynos_drm_buf.h"
 #include "exynos_drm_gem.h"
 
 #define to_exynos_fb(x)	container_of(x, struct exynos_drm_fb, fb)
@@ -42,15 +41,11 @@
  * exynos specific framebuffer structure.
  *
  * @fb: drm framebuffer obejct.
- * @exynos_gem_obj: exynos specific gem object containing a gem object.
- * @buffer: pointer to exynos_drm_gem_buffer object.
- *	- contain the memory information to memory region allocated
- *	at default framebuffer creation.
+ * @exynos_gem_obj: array of exynos specific gem object containing a gem object.
  */
 struct exynos_drm_fb {
 	struct drm_framebuffer		fb;
-	struct exynos_drm_gem_obj	*exynos_gem_obj;
-	struct exynos_drm_gem_buf	*buffer;
+	struct exynos_drm_gem_obj	*exynos_gem_obj[MAX_FB_BUFFER];
 };
 
 static void exynos_drm_fb_destroy(struct drm_framebuffer *fb)
@@ -61,13 +56,6 @@ static void exynos_drm_fb_destroy(struct drm_framebuffer *fb)
 
 	drm_framebuffer_cleanup(fb);
 
-	/*
-	 * default framebuffer has no gem object so
-	 * a buffer of the default framebuffer should be released at here.
-	 */
-	if (!exynos_fb->exynos_gem_obj && exynos_fb->buffer)
-		exynos_drm_buf_destroy(fb->dev, exynos_fb->buffer);
-
 	kfree(exynos_fb);
 	exynos_fb = NULL;
 }
@@ -81,7 +69,7 @@ static int exynos_drm_fb_create_handle(struct drm_framebuffer *fb,
 	DRM_DEBUG_KMS("%s\n", __FILE__);
 
 	return drm_gem_handle_create(file_priv,
-			&exynos_fb->exynos_gem_obj->base, handle);
+			&exynos_fb->exynos_gem_obj[0]->base, handle);
 }
 
 static int exynos_drm_fb_dirty(struct drm_framebuffer *fb,
@@ -102,134 +90,88 @@ static struct drm_framebuffer_funcs exynos_drm_fb_funcs = {
 	.dirty		= exynos_drm_fb_dirty,
 };
 
-static struct drm_framebuffer *
-exynos_drm_fb_init(struct drm_file *file_priv, struct drm_device *dev,
-		    struct drm_mode_fb_cmd *mode_cmd)
+struct drm_framebuffer *
+exynos_drm_framebuffer_init(struct drm_device *dev,
+			    struct drm_mode_fb_cmd2 *mode_cmd,
+			    struct drm_gem_object *obj)
 {
 	struct exynos_drm_fb *exynos_fb;
-	struct drm_framebuffer *fb;
-	struct exynos_drm_gem_obj *exynos_gem_obj = NULL;
-	struct drm_gem_object *obj;
-	unsigned int size;
 	int ret;
 
-	DRM_DEBUG_KMS("%s\n", __FILE__);
-
-	mode_cmd->pitch = max(mode_cmd->pitch,
-			mode_cmd->width * (mode_cmd->bpp >> 3));
-
-	DRM_LOG_KMS("drm fb create(%dx%d)\n",
-			mode_cmd->width, mode_cmd->height);
-
 	exynos_fb = kzalloc(sizeof(*exynos_fb), GFP_KERNEL);
 	if (!exynos_fb) {
-		DRM_ERROR("failed to allocate exynos drm framebuffer.\n");
+		DRM_ERROR("failed to allocate exynos drm framebuffer\n");
 		return ERR_PTR(-ENOMEM);
 	}
 
-	fb = &exynos_fb->fb;
-	ret = drm_framebuffer_init(dev, fb, &exynos_drm_fb_funcs);
+	ret = drm_framebuffer_init(dev, &exynos_fb->fb, &exynos_drm_fb_funcs);
 	if (ret) {
-		DRM_ERROR("failed to initialize framebuffer.\n");
-		goto err_init;
+		DRM_ERROR("failed to initialize framebuffer\n");
+		return ERR_PTR(ret);
 	}
 
-	DRM_LOG_KMS("create: fb id: %d\n", fb->base.id);
+	drm_helper_mode_fill_fb_struct(&exynos_fb->fb, mode_cmd);
+	exynos_fb->exynos_gem_obj[0] = to_exynos_gem_obj(obj);
 
-	size = mode_cmd->pitch * mode_cmd->height;
+	return &exynos_fb->fb;
+}
 
-	/*
-	 * mode_cmd->handle could be NULL at booting time or
-	 * with user request. if NULL, a new buffer or a gem object
-	 * would be allocated.
-	 */
-	if (!mode_cmd->handle) {
-		if (!file_priv) {
-			struct exynos_drm_gem_buf *buffer;
-
-			/*
-			 * in case that file_priv is NULL, it allocates
-			 * only buffer and this buffer would be used
-			 * for default framebuffer.
-			 */
-			buffer = exynos_drm_buf_create(dev, size);
-			if (IS_ERR(buffer)) {
-				ret = PTR_ERR(buffer);
-				goto err_buffer;
-			}
-
-			exynos_fb->buffer = buffer;
-
-			DRM_LOG_KMS("default: dma_addr = 0x%lx, size = 0x%x\n",
-					(unsigned long)buffer->dma_addr, size);
-
-			goto out;
-		} else {
-			exynos_gem_obj = exynos_drm_gem_create(dev, file_priv,
-							&mode_cmd->handle,
-							size);
-			if (IS_ERR(exynos_gem_obj)) {
-				ret = PTR_ERR(exynos_gem_obj);
-				goto err_buffer;
-			}
-		}
-	} else {
-		obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handle);
-		if (!obj) {
-			DRM_ERROR("failed to lookup gem object.\n");
-			goto err_buffer;
-		}
+static struct drm_framebuffer *
+exynos_user_fb_create(struct drm_device *dev, struct drm_file *file_priv,
+		      struct drm_mode_fb_cmd2 *mode_cmd)
+{
+	struct drm_gem_object *obj;
+	struct drm_framebuffer *fb;
+	struct exynos_drm_fb *exynos_fb;
+	int nr;
+	int i;
 
-		exynos_gem_obj = to_exynos_gem_obj(obj);
+	DRM_DEBUG_KMS("%s\n", __FILE__);
 
-		drm_gem_object_unreference_unlocked(obj);
+	obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[0]);
+	if (!obj) {
+		DRM_ERROR("failed to lookup gem object\n");
+		return ERR_PTR(-ENOENT);
 	}
 
-	/*
-	 * if got a exynos_gem_obj from either a handle or
-	 * a new creation then exynos_fb->exynos_gem_obj is NULL
-	 * so that default framebuffer has no its own gem object,
-	 * only its own buffer object.
-	 */
-	exynos_fb->buffer = exynos_gem_obj->buffer;
-
-	DRM_LOG_KMS("dma_addr = 0x%lx, size = 0x%x, gem object = 0x%x\n",
-			(unsigned long)exynos_fb->buffer->dma_addr, size,
-			(unsigned int)&exynos_gem_obj->base);
+	drm_gem_object_unreference_unlocked(obj);
 
-out:
-	exynos_fb->exynos_gem_obj = exynos_gem_obj;
+	fb = exynos_drm_framebuffer_init(dev, mode_cmd, obj);
+	if (IS_ERR(fb))
+		return fb;
 
-	drm_helper_mode_fill_fb_struct(fb, mode_cmd);
+	exynos_fb = to_exynos_fb(fb);
+	nr = exynos_drm_format_num_buffers(fb->pixel_format);
 
-	return fb;
-
-err_buffer:
-	drm_framebuffer_cleanup(fb);
-
-err_init:
-	kfree(exynos_fb);
+	for (i = 1; i < nr; i++) {
+		obj = drm_gem_object_lookup(dev, file_priv,
+				mode_cmd->handles[i]);
+		if (!obj) {
+			DRM_ERROR("failed to lookup gem object\n");
+			exynos_drm_fb_destroy(fb);
+			return ERR_PTR(-ENOENT);
+		}
 
-	return ERR_PTR(ret);
-}
+		drm_gem_object_unreference_unlocked(obj);
 
-struct drm_framebuffer *exynos_drm_fb_create(struct drm_device *dev,
-					      struct drm_file *file_priv,
-					      struct drm_mode_fb_cmd *mode_cmd)
-{
-	DRM_DEBUG_KMS("%s\n", __FILE__);
+		exynos_fb->exynos_gem_obj[i] = to_exynos_gem_obj(obj);
+	}
 
-	return exynos_drm_fb_init(file_priv, dev, mode_cmd);
+	return fb;
 }
 
-struct exynos_drm_gem_buf *exynos_drm_fb_get_buf(struct drm_framebuffer *fb)
+struct exynos_drm_gem_buf *exynos_drm_fb_buffer(struct drm_framebuffer *fb,
+						int index)
 {
 	struct exynos_drm_fb *exynos_fb = to_exynos_fb(fb);
 	struct exynos_drm_gem_buf *buffer;
 
 	DRM_DEBUG_KMS("%s\n", __FILE__);
 
-	buffer = exynos_fb->buffer;
+	if (index >= MAX_FB_BUFFER)
+		return NULL;
+
+	buffer = exynos_fb->exynos_gem_obj[index]->buffer;
 	if (!buffer)
 		return NULL;
 
@@ -250,7 +192,7 @@ static void exynos_drm_output_poll_changed(struct drm_device *dev)
 }
 
 static struct drm_mode_config_funcs exynos_drm_mode_config_funcs = {
-	.fb_create = exynos_drm_fb_create,
+	.fb_create = exynos_user_fb_create,
 	.output_poll_changed = exynos_drm_output_poll_changed,
 };
 
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fb.h b/drivers/gpu/drm/exynos/exynos_drm_fb.h
index eb35931d302c..3ecb30d93552 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fb.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_fb.h
@@ -28,9 +28,27 @@
 #ifndef _EXYNOS_DRM_FB_H_
 #define _EXYNOS_DRM_FB_H
 
-struct drm_framebuffer *exynos_drm_fb_create(struct drm_device *dev,
-					      struct drm_file *filp,
-					      struct drm_mode_fb_cmd *mode_cmd);
+static inline int exynos_drm_format_num_buffers(uint32_t format)
+{
+	switch (format) {
+	case DRM_FORMAT_NV12M:
+	case DRM_FORMAT_NV12MT:
+		return 2;
+	case DRM_FORMAT_YUV420M:
+		return 3;
+	default:
+		return 1;
+	}
+}
+
+struct drm_framebuffer *
+exynos_drm_framebuffer_init(struct drm_device *dev,
+			    struct drm_mode_fb_cmd2 *mode_cmd,
+			    struct drm_gem_object *obj);
+
+/* get memory information of a drm framebuffer */
+struct exynos_drm_gem_buf *exynos_drm_fb_buffer(struct drm_framebuffer *fb,
+						 int index);
 
 void exynos_drm_mode_config_init(struct drm_device *dev);
 
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
index 836f41008187..d7ae29d2f3d6 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
@@ -34,7 +34,6 @@
 #include "exynos_drm_drv.h"
 #include "exynos_drm_fb.h"
 #include "exynos_drm_gem.h"
-#include "exynos_drm_buf.h"
 
 #define MAX_CONNECTOR		4
 #define PREFERRED_BPP		32
@@ -43,8 +42,8 @@
 				drm_fb_helper)
 
 struct exynos_drm_fbdev {
-	struct drm_fb_helper	drm_fb_helper;
-	struct drm_framebuffer	*fb;
+	struct drm_fb_helper		drm_fb_helper;
+	struct exynos_drm_gem_obj	*exynos_gem_obj;
 };
 
 static int exynos_drm_fbdev_set_par(struct fb_info *info)
@@ -90,26 +89,24 @@ static int exynos_drm_fbdev_update(struct drm_fb_helper *helper,
 {
 	struct fb_info *fbi = helper->fbdev;
 	struct drm_device *dev = helper->dev;
-	struct exynos_drm_fbdev *exynos_fb = to_exynos_fbdev(helper);
 	struct exynos_drm_gem_buf *buffer;
 	unsigned int size = fb->width * fb->height * (fb->bits_per_pixel >> 3);
 	unsigned long offset;
 
 	DRM_DEBUG_KMS("%s\n", __FILE__);
 
-	exynos_fb->fb = fb;
-
-	drm_fb_helper_fill_fix(fbi, fb->pitch, fb->depth);
+	drm_fb_helper_fill_fix(fbi, fb->pitches[0], fb->depth);
 	drm_fb_helper_fill_var(fbi, helper, fb->width, fb->height);
 
-	buffer = exynos_drm_fb_get_buf(fb);
+	/* RGB formats use only one buffer */
+	buffer = exynos_drm_fb_buffer(fb, 0);
 	if (!buffer) {
 		DRM_LOG_KMS("buffer is null.\n");
 		return -EFAULT;
 	}
 
 	offset = fbi->var.xoffset * (fb->bits_per_pixel >> 3);
-	offset += fbi->var.yoffset * fb->pitch;
+	offset += fbi->var.yoffset * fb->pitches[0];
 
 	dev->mode_config.fb_base = (resource_size_t)buffer->dma_addr;
 	fbi->screen_base = buffer->kvaddr + offset;
@@ -124,10 +121,12 @@ static int exynos_drm_fbdev_create(struct drm_fb_helper *helper,
 				    struct drm_fb_helper_surface_size *sizes)
 {
 	struct exynos_drm_fbdev *exynos_fbdev = to_exynos_fbdev(helper);
+	struct exynos_drm_gem_obj *exynos_gem_obj;
 	struct drm_device *dev = helper->dev;
 	struct fb_info *fbi;
-	struct drm_mode_fb_cmd mode_cmd = { 0 };
+	struct drm_mode_fb_cmd2 mode_cmd = { 0 };
 	struct platform_device *pdev = dev->platformdev;
+	unsigned long size;
 	int ret;
 
 	DRM_DEBUG_KMS("%s\n", __FILE__);
@@ -138,8 +137,9 @@ static int exynos_drm_fbdev_create(struct drm_fb_helper *helper,
 
 	mode_cmd.width = sizes->surface_width;
 	mode_cmd.height = sizes->surface_height;
-	mode_cmd.bpp = sizes->surface_bpp;
-	mode_cmd.depth = sizes->surface_depth;
+	mode_cmd.pitches[0] = sizes->surface_width * (sizes->surface_bpp >> 3);
+	mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
+							  sizes->surface_depth);
 
 	mutex_lock(&dev->struct_mutex);
 
@@ -150,14 +150,23 @@ static int exynos_drm_fbdev_create(struct drm_fb_helper *helper,
 		goto out;
 	}
 
-	exynos_fbdev->fb = exynos_drm_fb_create(dev, NULL, &mode_cmd);
-	if (IS_ERR_OR_NULL(exynos_fbdev->fb)) {
+	size = mode_cmd.pitches[0] * mode_cmd.height;
+	exynos_gem_obj = exynos_drm_gem_create(dev, size);
+	if (IS_ERR(exynos_gem_obj)) {
+		ret = PTR_ERR(exynos_gem_obj);
+		goto out;
+	}
+
+	exynos_fbdev->exynos_gem_obj = exynos_gem_obj;
+
+	helper->fb = exynos_drm_framebuffer_init(dev, &mode_cmd,
+			&exynos_gem_obj->base);
+	if (IS_ERR_OR_NULL(helper->fb)) {
 		DRM_ERROR("failed to create drm framebuffer.\n");
-		ret = PTR_ERR(exynos_fbdev->fb);
+		ret = PTR_ERR(helper->fb);
 		goto out;
 	}
 
-	helper->fb = exynos_fbdev->fb;
 	helper->fbdev = fbi;
 
 	fbi->par = helper;
@@ -171,8 +180,10 @@ static int exynos_drm_fbdev_create(struct drm_fb_helper *helper,
 	}
 
 	ret = exynos_drm_fbdev_update(helper, helper->fb);
-	if (ret < 0)
+	if (ret < 0) {
 		fb_dealloc_cmap(&fbi->cmap);
+		goto out;
+	}
 
 /*
  * if failed, all resources allocated above would be released by
@@ -205,34 +216,42 @@ static int exynos_drm_fbdev_recreate(struct drm_fb_helper *helper,
 {
 	struct drm_device *dev = helper->dev;
 	struct exynos_drm_fbdev *exynos_fbdev = to_exynos_fbdev(helper);
-	struct drm_framebuffer *fb = exynos_fbdev->fb;
-	struct drm_mode_fb_cmd mode_cmd = { 0 };
+	struct exynos_drm_gem_obj *exynos_gem_obj;
+	struct drm_framebuffer *fb = helper->fb;
+	struct drm_mode_fb_cmd2 mode_cmd = { 0 };
+	unsigned long size;
 
 	DRM_DEBUG_KMS("%s\n", __FILE__);
 
-	if (helper->fb != fb) {
-		DRM_ERROR("drm framebuffer is different\n");
-		return -EINVAL;
-	}
-
 	if (exynos_drm_fbdev_is_samefb(fb, sizes))
 		return 0;
 
 	mode_cmd.width = sizes->surface_width;
 	mode_cmd.height = sizes->surface_height;
-	mode_cmd.bpp = sizes->surface_bpp;
-	mode_cmd.depth = sizes->surface_depth;
+	mode_cmd.pitches[0] = sizes->surface_width * (sizes->surface_bpp >> 3);
+	mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
+							  sizes->surface_depth);
+
+	if (exynos_fbdev->exynos_gem_obj)
+		exynos_drm_gem_destroy(exynos_fbdev->exynos_gem_obj);
 
 	if (fb->funcs->destroy)
 		fb->funcs->destroy(fb);
 
-	exynos_fbdev->fb = exynos_drm_fb_create(dev, NULL, &mode_cmd);
-	if (IS_ERR(exynos_fbdev->fb)) {
-		DRM_ERROR("failed to allocate fb.\n");
-		return PTR_ERR(exynos_fbdev->fb);
+	size = mode_cmd.pitches[0] * mode_cmd.height;
+	exynos_gem_obj = exynos_drm_gem_create(dev, size);
+	if (IS_ERR(exynos_gem_obj))
+		return PTR_ERR(exynos_gem_obj);
+
+	exynos_fbdev->exynos_gem_obj = exynos_gem_obj;
+
+	helper->fb = exynos_drm_framebuffer_init(dev, &mode_cmd,
+			&exynos_gem_obj->base);
+	if (IS_ERR_OR_NULL(helper->fb)) {
+		DRM_ERROR("failed to create drm framebuffer.\n");
+		return PTR_ERR(helper->fb);
 	}
 
-	helper->fb = exynos_fbdev->fb;
 	return exynos_drm_fbdev_update(helper, helper->fb);
 }
 
@@ -366,6 +385,9 @@ void exynos_drm_fbdev_fini(struct drm_device *dev)
 
 	fbdev = to_exynos_fbdev(private->fb_helper);
 
+	if (fbdev->exynos_gem_obj)
+		exynos_drm_gem_destroy(fbdev->exynos_gem_obj);
+
 	exynos_drm_fbdev_destroy(dev, private->fb_helper);
 	kfree(fbdev);
 	private->fb_helper = NULL;
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
index db3b3d9e731d..ca83139cd309 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
@@ -17,6 +17,7 @@
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/clk.h>
+#include <linux/pm_runtime.h>
 
 #include <drm/exynos_drm.h>
 #include <plat/regs-fb-v4.h>
@@ -68,6 +69,7 @@ struct fimd_win_data {
 	void __iomem		*vaddr;
 	unsigned int		buf_offsize;
 	unsigned int		line_size;	/* bytes */
+	bool			enabled;
 };
 
 struct fimd_context {
@@ -84,6 +86,8 @@ struct fimd_context {
 	unsigned long			irq_flags;
 	u32				vidcon0;
 	u32				vidcon1;
+	bool				suspended;
+	struct mutex			lock;
 
 	struct fb_videomode		*timing;
 };
@@ -119,7 +123,7 @@ static int fimd_display_power_on(struct device *dev, int mode)
 {
 	DRM_DEBUG_KMS("%s\n", __FILE__);
 
-	/* TODO. */
+	/* TODO */
 
 	return 0;
 }
@@ -132,12 +136,68 @@ static struct exynos_drm_display_ops fimd_display_ops = {
 	.power_on = fimd_display_power_on,
 };
 
+static void fimd_dpms(struct device *subdrv_dev, int mode)
+{
+	struct fimd_context *ctx = get_fimd_context(subdrv_dev);
+
+	DRM_DEBUG_KMS("%s, %d\n", __FILE__, mode);
+
+	mutex_lock(&ctx->lock);
+
+	switch (mode) {
+	case DRM_MODE_DPMS_ON:
+		/*
+		 * enable fimd hardware only if suspended status.
+		 *
+		 * P.S. fimd_dpms function would be called at booting time so
+		 * clk_enable could be called double time.
+		 */
+		if (ctx->suspended)
+			pm_runtime_get_sync(subdrv_dev);
+		break;
+	case DRM_MODE_DPMS_STANDBY:
+	case DRM_MODE_DPMS_SUSPEND:
+	case DRM_MODE_DPMS_OFF:
+		pm_runtime_put_sync(subdrv_dev);
+		break;
+	default:
+		DRM_DEBUG_KMS("unspecified mode %d\n", mode);
+		break;
+	}
+
+	mutex_unlock(&ctx->lock);
+}
+
+static void fimd_apply(struct device *subdrv_dev)
+{
+	struct fimd_context *ctx = get_fimd_context(subdrv_dev);
+	struct exynos_drm_manager *mgr = &ctx->subdrv.manager;
+	struct exynos_drm_manager_ops *mgr_ops = mgr->ops;
+	struct exynos_drm_overlay_ops *ovl_ops = mgr->overlay_ops;
+	struct fimd_win_data *win_data;
+	int i;
+
+	DRM_DEBUG_KMS("%s\n", __FILE__);
+
+	for (i = 0; i < WINDOWS_NR; i++) {
+		win_data = &ctx->win_data[i];
+		if (win_data->enabled && (ovl_ops && ovl_ops->commit))
+			ovl_ops->commit(subdrv_dev, i);
+	}
+
+	if (mgr_ops && mgr_ops->commit)
+		mgr_ops->commit(subdrv_dev);
+}
+
 static void fimd_commit(struct device *dev)
 {
 	struct fimd_context *ctx = get_fimd_context(dev);
 	struct fb_videomode *timing = ctx->timing;
 	u32 val;
 
+	if (ctx->suspended)
+		return;
+
 	DRM_DEBUG_KMS("%s\n", __FILE__);
 
 	/* setup polarity values from machine code. */
@@ -177,40 +237,6 @@ static void fimd_commit(struct device *dev)
 	writel(val, ctx->regs + VIDCON0);
 }
 
-static void fimd_disable(struct device *dev)
-{
-	struct fimd_context *ctx = get_fimd_context(dev);
-	struct exynos_drm_subdrv *subdrv = &ctx->subdrv;
-	struct drm_device *drm_dev = subdrv->drm_dev;
-	struct exynos_drm_manager *manager = &subdrv->manager;
-	u32 val;
-
-	DRM_DEBUG_KMS("%s\n", __FILE__);
-
-	/* fimd dma off */
-	val = readl(ctx->regs + VIDCON0);
-	val &= ~(VIDCON0_ENVID | VIDCON0_ENVID_F);
-	writel(val, ctx->regs + VIDCON0);
-
-	/*
-	 * if vblank is enabled status with dma off then
-	 * it disables vsync interrupt.
-	 */
-	if (drm_dev->vblank_enabled[manager->pipe] &&
-		atomic_read(&drm_dev->vblank_refcount[manager->pipe])) {
-		drm_vblank_put(drm_dev, manager->pipe);
-
-		/*
-		 * if vblank_disable_allowed is 0 then disable
-		 * vsync interrupt right now else the vsync interrupt
-		 * would be disabled by drm timer once a current process
-		 * gives up ownershop of vblank event.
-		 */
-		if (!drm_dev->vblank_disable_allowed)
-			drm_vblank_off(drm_dev, manager->pipe);
-	}
-}
-
 static int fimd_enable_vblank(struct device *dev)
 {
 	struct fimd_context *ctx = get_fimd_context(dev);
@@ -218,6 +244,9 @@ static int fimd_enable_vblank(struct device *dev)
 
 	DRM_DEBUG_KMS("%s\n", __FILE__);
 
+	if (ctx->suspended)
+		return -EPERM;
+
 	if (!test_and_set_bit(0, &ctx->irq_flags)) {
 		val = readl(ctx->regs + VIDINTCON0);
 
@@ -242,6 +271,9 @@ static void fimd_disable_vblank(struct device *dev)
 
 	DRM_DEBUG_KMS("%s\n", __FILE__);
 
+	if (ctx->suspended)
+		return;
+
 	if (test_and_clear_bit(0, &ctx->irq_flags)) {
 		val = readl(ctx->regs + VIDINTCON0);
 
@@ -253,8 +285,9 @@ static void fimd_disable_vblank(struct device *dev)
 }
 
 static struct exynos_drm_manager_ops fimd_manager_ops = {
+	.dpms = fimd_dpms,
+	.apply = fimd_apply,
 	.commit = fimd_commit,
-	.disable = fimd_disable,
 	.enable_vblank = fimd_enable_vblank,
 	.disable_vblank = fimd_disable_vblank,
 };
@@ -264,6 +297,7 @@ static void fimd_win_mode_set(struct device *dev,
 {
 	struct fimd_context *ctx = get_fimd_context(dev);
 	struct fimd_win_data *win_data;
+	int win;
 	unsigned long offset;
 
 	DRM_DEBUG_KMS("%s\n", __FILE__);
@@ -273,12 +307,19 @@ static void fimd_win_mode_set(struct device *dev,
 		return;
 	}
 
+	win = overlay->zpos;
+	if (win == DEFAULT_ZPOS)
+		win = ctx->default_win;
+
+	if (win < 0 || win > WINDOWS_NR)
+		return;
+
 	offset = overlay->fb_x * (overlay->bpp >> 3);
 	offset += overlay->fb_y * overlay->pitch;
 
 	DRM_DEBUG_KMS("offset = 0x%lx, pitch = %x\n", offset, overlay->pitch);
 
-	win_data = &ctx->win_data[ctx->default_win];
+	win_data = &ctx->win_data[win];
 
 	win_data->offset_x = overlay->crtc_x;
 	win_data->offset_y = overlay->crtc_y;
@@ -286,8 +327,8 @@ static void fimd_win_mode_set(struct device *dev,
 	win_data->ovl_height = overlay->crtc_height;
 	win_data->fb_width = overlay->fb_width;
 	win_data->fb_height = overlay->fb_height;
-	win_data->dma_addr = overlay->dma_addr + offset;
-	win_data->vaddr = overlay->vaddr + offset;
+	win_data->dma_addr = overlay->dma_addr[0] + offset;
+	win_data->vaddr = overlay->vaddr[0] + offset;
 	win_data->bpp = overlay->bpp;
 	win_data->buf_offsize = (overlay->fb_width - overlay->crtc_width) *
 				(overlay->bpp >> 3);
@@ -381,15 +422,21 @@ static void fimd_win_set_colkey(struct device *dev, unsigned int win)
 	writel(keycon1, ctx->regs + WKEYCON1_BASE(win));
 }
 
-static void fimd_win_commit(struct device *dev)
+static void fimd_win_commit(struct device *dev, int zpos)
 {
 	struct fimd_context *ctx = get_fimd_context(dev);
 	struct fimd_win_data *win_data;
-	int win = ctx->default_win;
+	int win = zpos;
 	unsigned long val, alpha, size;
 
 	DRM_DEBUG_KMS("%s\n", __FILE__);
 
+	if (ctx->suspended)
+		return;
+
+	if (win == DEFAULT_ZPOS)
+		win = ctx->default_win;
+
 	if (win < 0 || win > WINDOWS_NR)
 		return;
 
@@ -472,24 +519,37 @@ static void fimd_win_commit(struct device *dev)
 	if (win != 0)
 		fimd_win_set_colkey(dev, win);
 
+	/* wincon */
+	val = readl(ctx->regs + WINCON(win));
+	val |= WINCONx_ENWIN;
+	writel(val, ctx->regs + WINCON(win));
+
 	/* Enable DMA channel and unprotect windows */
 	val = readl(ctx->regs + SHADOWCON);
 	val |= SHADOWCON_CHx_ENABLE(win);
 	val &= ~SHADOWCON_WINx_PROTECT(win);
 	writel(val, ctx->regs + SHADOWCON);
+
+	win_data->enabled = true;
 }
 
-static void fimd_win_disable(struct device *dev)
+static void fimd_win_disable(struct device *dev, int zpos)
 {
 	struct fimd_context *ctx = get_fimd_context(dev);
-	int win = ctx->default_win;
+	struct fimd_win_data *win_data;
+	int win = zpos;
 	u32 val;
 
 	DRM_DEBUG_KMS("%s\n", __FILE__);
 
+	if (win == DEFAULT_ZPOS)
+		win = ctx->default_win;
+
 	if (win < 0 || win > WINDOWS_NR)
 		return;
 
+	win_data = &ctx->win_data[win];
+
 	/* protect windows */
 	val = readl(ctx->regs + SHADOWCON);
 	val |= SHADOWCON_WINx_PROTECT(win);
@@ -505,6 +565,8 @@ static void fimd_win_disable(struct device *dev)
 	val &= ~SHADOWCON_CHx_ENABLE(win);
 	val &= ~SHADOWCON_WINx_PROTECT(win);
 	writel(val, ctx->regs + SHADOWCON);
+
+	win_data->enabled = false;
 }
 
 static struct exynos_drm_overlay_ops fimd_overlay_ops = {
@@ -540,9 +602,17 @@ static void fimd_finish_pageflip(struct drm_device *drm_dev, int crtc)
 		wake_up_interruptible(&e->base.file_priv->event_wait);
 	}
 
-	if (is_checked)
+	if (is_checked) {
 		drm_vblank_put(drm_dev, crtc);
 
+		/*
+		 * don't off vblank if vblank_disable_allowed is 1,
+		 * because vblank would be off by timer handler.
+		 */
+		if (!drm_dev->vblank_disable_allowed)
+			drm_vblank_off(drm_dev, crtc);
+	}
+
 	spin_unlock_irqrestore(&drm_dev->event_lock, flags);
 }
 
@@ -560,19 +630,14 @@ static irqreturn_t fimd_irq_handler(int irq, void *dev_id)
 		/* VSYNC interrupt */
 		writel(VIDINTCON1_INT_FRAME, ctx->regs + VIDINTCON1);
 
-	/*
-	 * in case that vblank_disable_allowed is 1, it could induce
-	 * the problem that manager->pipe could be -1 because with
-	 * disable callback, vsync interrupt isn't disabled and at this moment,
-	 * vsync interrupt could occur. the vsync interrupt would be disabled
-	 * by timer handler later.
-	 */
-	if (manager->pipe == -1)
-		return IRQ_HANDLED;
+	/* check the crtc is detached already from encoder */
+	if (manager->pipe < 0)
+		goto out;
 
 	drm_handle_vblank(drm_dev, manager->pipe);
 	fimd_finish_pageflip(drm_dev, manager->pipe);
 
+out:
 	return IRQ_HANDLED;
 }
 
@@ -590,6 +655,13 @@ static int fimd_subdrv_probe(struct drm_device *drm_dev, struct device *dev)
 	 */
 	drm_dev->irq_enabled = 1;
 
+	/*
+	 * with vblank_disable_allowed = 1, vblank interrupt will be disabled
+	 * by drm timer once a current process gives up ownership of
+	 * vblank event.(after drm_vblank_put function is called)
+	 */
+	drm_dev->vblank_disable_allowed = 1;
+
 	return 0;
 }
 
@@ -739,9 +811,6 @@ static int __devinit fimd_probe(struct platform_device *pdev)
 
 	ctx->irq = res->start;
 
-	for (win = 0; win < WINDOWS_NR; win++)
-		fimd_clear_win(ctx, win);
-
 	ret = request_irq(ctx->irq, fimd_irq_handler, 0, "drm_fimd", ctx);
 	if (ret < 0) {
 		dev_err(dev, "irq request failed.\n");
@@ -769,7 +838,17 @@ static int __devinit fimd_probe(struct platform_device *pdev)
 	subdrv->manager.display_ops = &fimd_display_ops;
 	subdrv->manager.dev = dev;
 
+	mutex_init(&ctx->lock);
+
 	platform_set_drvdata(pdev, ctx);
+
+	pm_runtime_set_active(dev);
+	pm_runtime_enable(dev);
+	pm_runtime_get_sync(dev);
+
+	for (win = 0; win < WINDOWS_NR; win++)
+		fimd_clear_win(ctx, win);
+
 	exynos_drm_subdrv_register(subdrv);
 
 	return 0;
@@ -797,14 +876,25 @@ err_clk_get:
 
 static int __devexit fimd_remove(struct platform_device *pdev)
 {
+	struct device *dev = &pdev->dev;
 	struct fimd_context *ctx = platform_get_drvdata(pdev);
 
 	DRM_DEBUG_KMS("%s\n", __FILE__);
 
 	exynos_drm_subdrv_unregister(&ctx->subdrv);
 
+	if (ctx->suspended)
+		goto out;
+
 	clk_disable(ctx->lcd_clk);
 	clk_disable(ctx->bus_clk);
+
+	pm_runtime_set_suspended(dev);
+	pm_runtime_put_sync(dev);
+
+out:
+	pm_runtime_disable(dev);
+
 	clk_put(ctx->lcd_clk);
 	clk_put(ctx->bus_clk);
 
@@ -818,12 +908,102 @@ static int __devexit fimd_remove(struct platform_device *pdev)
 	return 0;
 }
 
+#ifdef CONFIG_PM_SLEEP
+static int fimd_suspend(struct device *dev)
+{
+	int ret;
+
+	if (pm_runtime_suspended(dev))
+		return 0;
+
+	ret = pm_runtime_suspend(dev);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static int fimd_resume(struct device *dev)
+{
+	int ret;
+
+	ret = pm_runtime_resume(dev);
+	if (ret < 0) {
+		DRM_ERROR("failed to resume runtime pm.\n");
+		return ret;
+	}
+
+	pm_runtime_disable(dev);
+
+	ret = pm_runtime_set_active(dev);
+	if (ret < 0) {
+		DRM_ERROR("failed to active runtime pm.\n");
+		pm_runtime_enable(dev);
+		pm_runtime_suspend(dev);
+		return ret;
+	}
+
+	pm_runtime_enable(dev);
+
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_PM_RUNTIME
+static int fimd_runtime_suspend(struct device *dev)
+{
+	struct fimd_context *ctx = get_fimd_context(dev);
+
+	DRM_DEBUG_KMS("%s\n", __FILE__);
+
+	clk_disable(ctx->lcd_clk);
+	clk_disable(ctx->bus_clk);
+
+	ctx->suspended = true;
+	return 0;
+}
+
+static int fimd_runtime_resume(struct device *dev)
+{
+	struct fimd_context *ctx = get_fimd_context(dev);
+	int ret;
+
+	DRM_DEBUG_KMS("%s\n", __FILE__);
+
+	ret = clk_enable(ctx->bus_clk);
+	if (ret < 0)
+		return ret;
+
+	ret = clk_enable(ctx->lcd_clk);
+	if  (ret < 0) {
+		clk_disable(ctx->bus_clk);
+		return ret;
+	}
+
+	ctx->suspended = false;
+
+	/* if vblank was enabled status, enable it again. */
+	if (test_and_clear_bit(0, &ctx->irq_flags))
+		fimd_enable_vblank(dev);
+
+	fimd_apply(dev);
+
+	return 0;
+}
+#endif
+
+static const struct dev_pm_ops fimd_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(fimd_suspend, fimd_resume)
+	SET_RUNTIME_PM_OPS(fimd_runtime_suspend, fimd_runtime_resume, NULL)
+};
+
 static struct platform_driver fimd_driver = {
 	.probe		= fimd_probe,
 	.remove		= __devexit_p(fimd_remove),
 	.driver		= {
 		.name	= "exynos4-fb",
 		.owner	= THIS_MODULE,
+		.pm	= &fimd_pm_ops,
 	},
 };
 
diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c
index aba0fe47f7ea..025abb3e3b67 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_gem.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c
@@ -55,17 +55,54 @@ static unsigned int convert_to_vm_err_msg(int msg)
 	return out_msg;
 }
 
-static unsigned int get_gem_mmap_offset(struct drm_gem_object *obj)
+static int exynos_drm_gem_handle_create(struct drm_gem_object *obj,
+					struct drm_file *file_priv,
+					unsigned int *handle)
 {
+	int ret;
+
+	/*
+	 * allocate a id of idr table where the obj is registered
+	 * and handle has the id what user can see.
+	 */
+	ret = drm_gem_handle_create(file_priv, obj, handle);
+	if (ret)
+		return ret;
+
+	DRM_DEBUG_KMS("gem handle = 0x%x\n", *handle);
+
+	/* drop reference from allocate - handle holds it now. */
+	drm_gem_object_unreference_unlocked(obj);
+
+	return 0;
+}
+
+void exynos_drm_gem_destroy(struct exynos_drm_gem_obj *exynos_gem_obj)
+{
+	struct drm_gem_object *obj;
+
 	DRM_DEBUG_KMS("%s\n", __FILE__);
 
-	return (unsigned int)obj->map_list.hash.key << PAGE_SHIFT;
+	if (!exynos_gem_obj)
+		return;
+
+	obj = &exynos_gem_obj->base;
+
+	DRM_DEBUG_KMS("handle count = %d\n", atomic_read(&obj->handle_count));
+
+	exynos_drm_buf_destroy(obj->dev, exynos_gem_obj->buffer);
+
+	if (obj->map_list.map)
+		drm_gem_free_mmap_offset(obj);
+
+	/* release file pointer to gem object. */
+	drm_gem_object_release(obj);
+
+	kfree(exynos_gem_obj);
 }
 
-static struct exynos_drm_gem_obj
-		*exynos_drm_gem_init(struct drm_device *drm_dev,
-			struct drm_file *file_priv, unsigned int *handle,
-			unsigned int size)
+static struct exynos_drm_gem_obj *exynos_drm_gem_init(struct drm_device *dev,
+						      unsigned long size)
 {
 	struct exynos_drm_gem_obj *exynos_gem_obj;
 	struct drm_gem_object *obj;
@@ -73,75 +110,41 @@ static struct exynos_drm_gem_obj
 
 	exynos_gem_obj = kzalloc(sizeof(*exynos_gem_obj), GFP_KERNEL);
 	if (!exynos_gem_obj) {
-		DRM_ERROR("failed to allocate exynos gem object.\n");
-		return ERR_PTR(-ENOMEM);
+		DRM_ERROR("failed to allocate exynos gem object\n");
+		return NULL;
 	}
 
 	obj = &exynos_gem_obj->base;
 
-	ret = drm_gem_object_init(drm_dev, obj, size);
+	ret = drm_gem_object_init(dev, obj, size);
 	if (ret < 0) {
-		DRM_ERROR("failed to initialize gem object.\n");
-		ret = -EINVAL;
-		goto err_object_init;
+		DRM_ERROR("failed to initialize gem object\n");
+		kfree(exynos_gem_obj);
+		return NULL;
 	}
 
 	DRM_DEBUG_KMS("created file object = 0x%x\n", (unsigned int)obj->filp);
 
-	ret = drm_gem_create_mmap_offset(obj);
-	if (ret < 0) {
-		DRM_ERROR("failed to allocate mmap offset.\n");
-		goto err_create_mmap_offset;
-	}
-
-	/*
-	 * allocate a id of idr table where the obj is registered
-	 * and handle has the id what user can see.
-	 */
-	ret = drm_gem_handle_create(file_priv, obj, handle);
-	if (ret)
-		goto err_handle_create;
-
-	DRM_DEBUG_KMS("gem handle = 0x%x\n", *handle);
-
-	/* drop reference from allocate - handle holds it now. */
-	drm_gem_object_unreference_unlocked(obj);
-
 	return exynos_gem_obj;
-
-err_handle_create:
-	drm_gem_free_mmap_offset(obj);
-
-err_create_mmap_offset:
-	drm_gem_object_release(obj);
-
-err_object_init:
-	kfree(exynos_gem_obj);
-
-	return ERR_PTR(ret);
 }
 
 struct exynos_drm_gem_obj *exynos_drm_gem_create(struct drm_device *dev,
-				struct drm_file *file_priv,
-				unsigned int *handle, unsigned long size)
+						 unsigned long size)
 {
-
-	struct exynos_drm_gem_obj *exynos_gem_obj = NULL;
 	struct exynos_drm_gem_buf *buffer;
+	struct exynos_drm_gem_obj *exynos_gem_obj;
 
 	size = roundup(size, PAGE_SIZE);
-
 	DRM_DEBUG_KMS("%s: size = 0x%lx\n", __FILE__, size);
 
 	buffer = exynos_drm_buf_create(dev, size);
-	if (IS_ERR(buffer)) {
-		return ERR_CAST(buffer);
-	}
+	if (!buffer)
+		return ERR_PTR(-ENOMEM);
 
-	exynos_gem_obj = exynos_drm_gem_init(dev, file_priv, handle, size);
-	if (IS_ERR(exynos_gem_obj)) {
+	exynos_gem_obj = exynos_drm_gem_init(dev, size);
+	if (!exynos_gem_obj) {
 		exynos_drm_buf_destroy(dev, buffer);
-		return exynos_gem_obj;
+		return ERR_PTR(-ENOMEM);
 	}
 
 	exynos_gem_obj->buffer = buffer;
@@ -150,23 +153,30 @@ struct exynos_drm_gem_obj *exynos_drm_gem_create(struct drm_device *dev,
 }
 
 int exynos_drm_gem_create_ioctl(struct drm_device *dev, void *data,
-					struct drm_file *file_priv)
+				struct drm_file *file_priv)
 {
 	struct drm_exynos_gem_create *args = data;
-	struct exynos_drm_gem_obj *exynos_gem_obj = NULL;
+	struct exynos_drm_gem_obj *exynos_gem_obj;
+	int ret;
 
 	DRM_DEBUG_KMS("%s\n", __FILE__);
 
-	exynos_gem_obj = exynos_drm_gem_create(dev, file_priv,
-						&args->handle, args->size);
+	exynos_gem_obj = exynos_drm_gem_create(dev, args->size);
 	if (IS_ERR(exynos_gem_obj))
 		return PTR_ERR(exynos_gem_obj);
 
+	ret = exynos_drm_gem_handle_create(&exynos_gem_obj->base, file_priv,
+			&args->handle);
+	if (ret) {
+		exynos_drm_gem_destroy(exynos_gem_obj);
+		return ret;
+	}
+
 	return 0;
 }
 
 int exynos_drm_gem_map_offset_ioctl(struct drm_device *dev, void *data,
-		struct drm_file *file_priv)
+				    struct drm_file *file_priv)
 {
 	struct drm_exynos_gem_map_off *args = data;
 
@@ -185,7 +195,7 @@ int exynos_drm_gem_map_offset_ioctl(struct drm_device *dev, void *data,
 }
 
 static int exynos_drm_gem_mmap_buffer(struct file *filp,
-		struct vm_area_struct *vma)
+				      struct vm_area_struct *vma)
 {
 	struct drm_gem_object *obj = filp->private_data;
 	struct exynos_drm_gem_obj *exynos_gem_obj = to_exynos_gem_obj(obj);
@@ -196,6 +206,7 @@ static int exynos_drm_gem_mmap_buffer(struct file *filp,
 
 	vma->vm_flags |= (VM_IO | VM_RESERVED);
 
+	/* in case of direct mapping, always having non-cachable attribute */
 	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
 	vma->vm_file = filp;
 
@@ -232,7 +243,7 @@ static const struct file_operations exynos_drm_gem_fops = {
 };
 
 int exynos_drm_gem_mmap_ioctl(struct drm_device *dev, void *data,
-		struct drm_file *file_priv)
+			      struct drm_file *file_priv)
 {
 	struct drm_exynos_gem_mmap *args = data;
 	struct drm_gem_object *obj;
@@ -278,32 +289,19 @@ int exynos_drm_gem_init_object(struct drm_gem_object *obj)
 	return 0;
 }
 
-void exynos_drm_gem_free_object(struct drm_gem_object *gem_obj)
+void exynos_drm_gem_free_object(struct drm_gem_object *obj)
 {
-	struct exynos_drm_gem_obj *exynos_gem_obj;
-
 	DRM_DEBUG_KMS("%s\n", __FILE__);
 
-	DRM_DEBUG_KMS("handle count = %d\n",
-			atomic_read(&gem_obj->handle_count));
-
-	if (gem_obj->map_list.map)
-		drm_gem_free_mmap_offset(gem_obj);
-
-	/* release file pointer to gem object. */
-	drm_gem_object_release(gem_obj);
-
-	exynos_gem_obj = to_exynos_gem_obj(gem_obj);
-
-	exynos_drm_buf_destroy(gem_obj->dev, exynos_gem_obj->buffer);
-
-	kfree(exynos_gem_obj);
+	exynos_drm_gem_destroy(to_exynos_gem_obj(obj));
 }
 
 int exynos_drm_gem_dumb_create(struct drm_file *file_priv,
-		struct drm_device *dev, struct drm_mode_create_dumb *args)
+			       struct drm_device *dev,
+			       struct drm_mode_create_dumb *args)
 {
 	struct exynos_drm_gem_obj *exynos_gem_obj;
+	int ret;
 
 	DRM_DEBUG_KMS("%s\n", __FILE__);
 
@@ -316,19 +314,27 @@ int exynos_drm_gem_dumb_create(struct drm_file *file_priv,
 	args->pitch = args->width * args->bpp >> 3;
 	args->size = args->pitch * args->height;
 
-	exynos_gem_obj = exynos_drm_gem_create(dev, file_priv, &args->handle,
-							args->size);
+	exynos_gem_obj = exynos_drm_gem_create(dev, args->size);
 	if (IS_ERR(exynos_gem_obj))
 		return PTR_ERR(exynos_gem_obj);
 
+	ret = exynos_drm_gem_handle_create(&exynos_gem_obj->base, file_priv,
+			&args->handle);
+	if (ret) {
+		exynos_drm_gem_destroy(exynos_gem_obj);
+		return ret;
+	}
+
 	return 0;
 }
 
 int exynos_drm_gem_dumb_map_offset(struct drm_file *file_priv,
-		struct drm_device *dev, uint32_t handle, uint64_t *offset)
+				   struct drm_device *dev, uint32_t handle,
+				   uint64_t *offset)
 {
 	struct exynos_drm_gem_obj *exynos_gem_obj;
 	struct drm_gem_object *obj;
+	int ret = 0;
 
 	DRM_DEBUG_KMS("%s\n", __FILE__);
 
@@ -343,19 +349,46 @@ int exynos_drm_gem_dumb_map_offset(struct drm_file *file_priv,
 	obj = drm_gem_object_lookup(dev, file_priv, handle);
 	if (!obj) {
 		DRM_ERROR("failed to lookup gem object.\n");
-		mutex_unlock(&dev->struct_mutex);
-		return -EINVAL;
+		ret = -EINVAL;
+		goto unlock;
 	}
 
 	exynos_gem_obj = to_exynos_gem_obj(obj);
 
-	*offset = get_gem_mmap_offset(&exynos_gem_obj->base);
-
-	drm_gem_object_unreference(obj);
+	if (!exynos_gem_obj->base.map_list.map) {
+		ret = drm_gem_create_mmap_offset(&exynos_gem_obj->base);
+		if (ret)
+			goto out;
+	}
 
+	*offset = (u64)exynos_gem_obj->base.map_list.hash.key << PAGE_SHIFT;
 	DRM_DEBUG_KMS("offset = 0x%lx\n", (unsigned long)*offset);
 
+out:
+	drm_gem_object_unreference(obj);
+unlock:
 	mutex_unlock(&dev->struct_mutex);
+	return ret;
+}
+
+int exynos_drm_gem_dumb_destroy(struct drm_file *file_priv,
+				struct drm_device *dev,
+				unsigned int handle)
+{
+	int ret;
+
+	DRM_DEBUG_KMS("%s\n", __FILE__);
+
+	/*
+	 * obj->refcount and obj->handle_count are decreased and
+	 * if both them are 0 then exynos_drm_gem_free_object()
+	 * would be called by callback to release resources.
+	 */
+	ret = drm_gem_handle_delete(file_priv, handle);
+	if (ret < 0) {
+		DRM_ERROR("failed to delete drm_gem_handle.\n");
+		return ret;
+	}
 
 	return 0;
 }
@@ -403,28 +436,6 @@ int exynos_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma)
 	return ret;
 }
 
-
-int exynos_drm_gem_dumb_destroy(struct drm_file *file_priv,
-		struct drm_device *dev, unsigned int handle)
-{
-	int ret;
-
-	DRM_DEBUG_KMS("%s\n", __FILE__);
-
-	/*
-	 * obj->refcount and obj->handle_count are decreased and
-	 * if both them are 0 then exynos_drm_gem_free_object()
-	 * would be called by callback to release resources.
-	 */
-	ret = drm_gem_handle_delete(file_priv, handle);
-	if (ret < 0) {
-		DRM_ERROR("failed to delete drm_gem_handle.\n");
-		return ret;
-	}
-
-	return 0;
-}
-
 MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
 MODULE_DESCRIPTION("Samsung SoC DRM GEM Module");
 MODULE_LICENSE("GPL");
diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.h b/drivers/gpu/drm/exynos/exynos_drm_gem.h
index ef8797334e6d..67cdc9168708 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_gem.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_gem.h
@@ -60,14 +60,16 @@ struct exynos_drm_gem_buf {
  *	user can access the buffer through kms_bo.handle.
  */
 struct exynos_drm_gem_obj {
-	struct drm_gem_object base;
-	struct exynos_drm_gem_buf *buffer;
+	struct drm_gem_object		base;
+	struct exynos_drm_gem_buf	*buffer;
 };
 
-/* create a new buffer and get a new gem handle. */
+/* destroy a buffer with gem object */
+void exynos_drm_gem_destroy(struct exynos_drm_gem_obj *exynos_gem_obj);
+
+/* create a new buffer with gem object */
 struct exynos_drm_gem_obj *exynos_drm_gem_create(struct drm_device *dev,
-		struct drm_file *file_priv,
-		unsigned int *handle, unsigned long size);
+						 unsigned long size);
 
 /*
  * request gem object creation and buffer allocation as the size
@@ -75,15 +77,18 @@ struct exynos_drm_gem_obj *exynos_drm_gem_create(struct drm_device *dev,
  * height and bpp.
  */
 int exynos_drm_gem_create_ioctl(struct drm_device *dev, void *data,
-		struct drm_file *file_priv);
+				struct drm_file *file_priv);
 
 /* get buffer offset to map to user space. */
 int exynos_drm_gem_map_offset_ioctl(struct drm_device *dev, void *data,
-		struct drm_file *file_priv);
+				    struct drm_file *file_priv);
 
-/* unmap a buffer from user space. */
-int exynos_drm_gem_munmap_ioctl(struct drm_device *dev, void *data,
-		struct drm_file *file_priv);
+/*
+ * mmap the physically continuous memory that a gem object contains
+ * to user space.
+ */
+int exynos_drm_gem_mmap_ioctl(struct drm_device *dev, void *data,
+			      struct drm_file *file_priv);
 
 /* initialize gem object. */
 int exynos_drm_gem_init_object(struct drm_gem_object *obj);
@@ -93,24 +98,13 @@ void exynos_drm_gem_free_object(struct drm_gem_object *gem_obj);
 
 /* create memory region for drm framebuffer. */
 int exynos_drm_gem_dumb_create(struct drm_file *file_priv,
-		struct drm_device *dev, struct drm_mode_create_dumb *args);
+			       struct drm_device *dev,
+			       struct drm_mode_create_dumb *args);
 
 /* map memory region for drm framebuffer to user space. */
 int exynos_drm_gem_dumb_map_offset(struct drm_file *file_priv,
-		struct drm_device *dev, uint32_t handle, uint64_t *offset);
-
-/* page fault handler and mmap fault address(virtual) to physical memory. */
-int exynos_drm_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
-
-/*
- * mmap the physically continuous memory that a gem object contains
- * to user space.
- */
-int exynos_drm_gem_mmap_ioctl(struct drm_device *dev, void *data,
-		struct drm_file *file_priv);
-
-/* set vm_flags and we can change the vm attribute to other one at here. */
-int exynos_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
+				   struct drm_device *dev, uint32_t handle,
+				   uint64_t *offset);
 
 /*
  * destroy memory region allocated.
@@ -118,6 +112,13 @@ int exynos_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
  *	would be released by drm_gem_handle_delete().
  */
 int exynos_drm_gem_dumb_destroy(struct drm_file *file_priv,
-		struct drm_device *dev, unsigned int handle);
+				struct drm_device *dev,
+				unsigned int handle);
+
+/* page fault handler and mmap fault address(virtual) to physical memory. */
+int exynos_drm_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
+
+/* set vm_flags and we can change the vm attribute to other one at here. */
+int exynos_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
 
 #endif
diff --git a/drivers/gpu/drm/exynos/exynos_drm_hdmi.c b/drivers/gpu/drm/exynos/exynos_drm_hdmi.c
new file mode 100644
index 000000000000..ed8a319ed84b
--- /dev/null
+++ b/drivers/gpu/drm/exynos/exynos_drm_hdmi.c
@@ -0,0 +1,439 @@
+/*
+ * Copyright (C) 2011 Samsung Electronics Co.Ltd
+ * Authors:
+ *	Inki Dae <inki.dae@samsung.com>
+ *	Seung-Woo Kim <sw0312.kim@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include "drmP.h"
+
+#include <linux/kernel.h>
+#include <linux/wait.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+
+#include <drm/exynos_drm.h>
+
+#include "exynos_drm_drv.h"
+#include "exynos_drm_hdmi.h"
+
+#define to_context(dev)		platform_get_drvdata(to_platform_device(dev))
+#define to_subdrv(dev)		to_context(dev)
+#define get_ctx_from_subdrv(subdrv)	container_of(subdrv,\
+					struct drm_hdmi_context, subdrv);
+
+/* these callback points shoud be set by specific drivers. */
+static struct exynos_hdmi_display_ops *hdmi_display_ops;
+static struct exynos_hdmi_manager_ops *hdmi_manager_ops;
+static struct exynos_hdmi_overlay_ops *hdmi_overlay_ops;
+
+struct drm_hdmi_context {
+	struct exynos_drm_subdrv	subdrv;
+	struct exynos_drm_hdmi_context	*hdmi_ctx;
+	struct exynos_drm_hdmi_context	*mixer_ctx;
+	struct work_struct		work;
+};
+
+void exynos_drm_display_ops_register(struct exynos_hdmi_display_ops
+					*display_ops)
+{
+	DRM_DEBUG_KMS("%s\n", __FILE__);
+
+	if (display_ops)
+		hdmi_display_ops = display_ops;
+}
+EXPORT_SYMBOL(exynos_drm_display_ops_register);
+
+void exynos_drm_manager_ops_register(struct exynos_hdmi_manager_ops
+					*manager_ops)
+{
+	DRM_DEBUG_KMS("%s\n", __FILE__);
+
+	if (manager_ops)
+		hdmi_manager_ops = manager_ops;
+}
+EXPORT_SYMBOL(exynos_drm_manager_ops_register);
+
+void exynos_drm_overlay_ops_register(struct exynos_hdmi_overlay_ops
+					*overlay_ops)
+{
+	DRM_DEBUG_KMS("%s\n", __FILE__);
+
+	if (overlay_ops)
+		hdmi_overlay_ops = overlay_ops;
+}
+EXPORT_SYMBOL(exynos_drm_overlay_ops_register);
+
+static bool drm_hdmi_is_connected(struct device *dev)
+{
+	struct drm_hdmi_context *ctx = to_context(dev);
+
+	DRM_DEBUG_KMS("%s\n", __FILE__);
+
+	if (hdmi_display_ops && hdmi_display_ops->is_connected)
+		return hdmi_display_ops->is_connected(ctx->hdmi_ctx->ctx);
+
+	return false;
+}
+
+static int drm_hdmi_get_edid(struct device *dev,
+		struct drm_connector *connector, u8 *edid, int len)
+{
+	struct drm_hdmi_context *ctx = to_context(dev);
+
+	DRM_DEBUG_KMS("%s\n", __FILE__);
+
+	if (hdmi_display_ops && hdmi_display_ops->get_edid)
+		return hdmi_display_ops->get_edid(ctx->hdmi_ctx->ctx,
+				connector, edid, len);
+
+	return 0;
+}
+
+static int drm_hdmi_check_timing(struct device *dev, void *timing)
+{
+	struct drm_hdmi_context *ctx = to_context(dev);
+
+	DRM_DEBUG_KMS("%s\n", __FILE__);
+
+	if (hdmi_display_ops && hdmi_display_ops->check_timing)
+		return hdmi_display_ops->check_timing(ctx->hdmi_ctx->ctx,
+				timing);
+
+	return 0;
+}
+
+static int drm_hdmi_power_on(struct device *dev, int mode)
+{
+	struct drm_hdmi_context *ctx = to_context(dev);
+
+	DRM_DEBUG_KMS("%s\n", __FILE__);
+
+	if (hdmi_display_ops && hdmi_display_ops->power_on)
+		return hdmi_display_ops->power_on(ctx->hdmi_ctx->ctx, mode);
+
+	return 0;
+}
+
+static struct exynos_drm_display_ops drm_hdmi_display_ops = {
+	.type = EXYNOS_DISPLAY_TYPE_HDMI,
+	.is_connected = drm_hdmi_is_connected,
+	.get_edid = drm_hdmi_get_edid,
+	.check_timing = drm_hdmi_check_timing,
+	.power_on = drm_hdmi_power_on,
+};
+
+static int drm_hdmi_enable_vblank(struct device *subdrv_dev)
+{
+	struct drm_hdmi_context *ctx = to_context(subdrv_dev);
+	struct exynos_drm_subdrv *subdrv = &ctx->subdrv;
+	struct exynos_drm_manager *manager = &subdrv->manager;
+
+	DRM_DEBUG_KMS("%s\n", __FILE__);
+
+	if (hdmi_overlay_ops && hdmi_overlay_ops->enable_vblank)
+		return hdmi_overlay_ops->enable_vblank(ctx->mixer_ctx->ctx,
+							manager->pipe);
+
+	return 0;
+}
+
+static void drm_hdmi_disable_vblank(struct device *subdrv_dev)
+{
+	struct drm_hdmi_context *ctx = to_context(subdrv_dev);
+
+	DRM_DEBUG_KMS("%s\n", __FILE__);
+
+	if (hdmi_overlay_ops && hdmi_overlay_ops->disable_vblank)
+		return hdmi_overlay_ops->disable_vblank(ctx->mixer_ctx->ctx);
+}
+
+static void drm_hdmi_mode_set(struct device *subdrv_dev, void *mode)
+{
+	struct drm_hdmi_context *ctx = to_context(subdrv_dev);
+
+	DRM_DEBUG_KMS("%s\n", __FILE__);
+
+	if (hdmi_manager_ops && hdmi_manager_ops->mode_set)
+		hdmi_manager_ops->mode_set(ctx->hdmi_ctx->ctx, mode);
+}
+
+static void drm_hdmi_commit(struct device *subdrv_dev)
+{
+	struct drm_hdmi_context *ctx = to_context(subdrv_dev);
+
+	DRM_DEBUG_KMS("%s\n", __FILE__);
+
+	if (hdmi_manager_ops && hdmi_manager_ops->commit)
+		hdmi_manager_ops->commit(ctx->hdmi_ctx->ctx);
+}
+
+static void drm_hdmi_dpms(struct device *subdrv_dev, int mode)
+{
+	struct drm_hdmi_context *ctx = to_context(subdrv_dev);
+
+	DRM_DEBUG_KMS("%s\n", __FILE__);
+
+	switch (mode) {
+	case DRM_MODE_DPMS_ON:
+		break;
+	case DRM_MODE_DPMS_STANDBY:
+	case DRM_MODE_DPMS_SUSPEND:
+	case DRM_MODE_DPMS_OFF:
+		if (hdmi_manager_ops && hdmi_manager_ops->disable)
+			hdmi_manager_ops->disable(ctx->hdmi_ctx->ctx);
+		break;
+	default:
+		DRM_DEBUG_KMS("unkown dps mode: %d\n", mode);
+		break;
+	}
+}
+
+static struct exynos_drm_manager_ops drm_hdmi_manager_ops = {
+	.dpms = drm_hdmi_dpms,
+	.enable_vblank = drm_hdmi_enable_vblank,
+	.disable_vblank = drm_hdmi_disable_vblank,
+	.mode_set = drm_hdmi_mode_set,
+	.commit = drm_hdmi_commit,
+};
+
+static void drm_mixer_mode_set(struct device *subdrv_dev,
+		struct exynos_drm_overlay *overlay)
+{
+	struct drm_hdmi_context *ctx = to_context(subdrv_dev);
+
+	DRM_DEBUG_KMS("%s\n", __FILE__);
+
+	if (hdmi_overlay_ops && hdmi_overlay_ops->win_mode_set)
+		hdmi_overlay_ops->win_mode_set(ctx->mixer_ctx->ctx, overlay);
+}
+
+static void drm_mixer_commit(struct device *subdrv_dev, int zpos)
+{
+	struct drm_hdmi_context *ctx = to_context(subdrv_dev);
+
+	DRM_DEBUG_KMS("%s\n", __FILE__);
+
+	if (hdmi_overlay_ops && hdmi_overlay_ops->win_commit)
+		hdmi_overlay_ops->win_commit(ctx->mixer_ctx->ctx, zpos);
+}
+
+static void drm_mixer_disable(struct device *subdrv_dev, int zpos)
+{
+	struct drm_hdmi_context *ctx = to_context(subdrv_dev);
+
+	DRM_DEBUG_KMS("%s\n", __FILE__);
+
+	if (hdmi_overlay_ops && hdmi_overlay_ops->win_disable)
+		hdmi_overlay_ops->win_disable(ctx->mixer_ctx->ctx, zpos);
+}
+
+static struct exynos_drm_overlay_ops drm_hdmi_overlay_ops = {
+	.mode_set = drm_mixer_mode_set,
+	.commit = drm_mixer_commit,
+	.disable = drm_mixer_disable,
+};
+
+
+static int hdmi_subdrv_probe(struct drm_device *drm_dev,
+		struct device *dev)
+{
+	struct exynos_drm_subdrv *subdrv = to_subdrv(dev);
+	struct drm_hdmi_context *ctx;
+	struct platform_device *pdev = to_platform_device(dev);
+	struct exynos_drm_common_hdmi_pd *pd;
+	int ret;
+
+	DRM_DEBUG_KMS("%s\n", __FILE__);
+
+	pd = pdev->dev.platform_data;
+
+	if (!pd) {
+		DRM_DEBUG_KMS("platform data is null.\n");
+		return -EFAULT;
+	}
+
+	if (!pd->hdmi_dev) {
+		DRM_DEBUG_KMS("hdmi device is null.\n");
+		return -EFAULT;
+	}
+
+	if (!pd->mixer_dev) {
+		DRM_DEBUG_KMS("mixer device is null.\n");
+		return -EFAULT;
+	}
+
+	ret = platform_driver_register(&hdmi_driver);
+	if (ret) {
+		DRM_DEBUG_KMS("failed to register hdmi driver.\n");
+		return ret;
+	}
+
+	ret = platform_driver_register(&mixer_driver);
+	if (ret) {
+		DRM_DEBUG_KMS("failed to register mixer driver.\n");
+		goto err_hdmidrv;
+	}
+
+	ctx = get_ctx_from_subdrv(subdrv);
+
+	ctx->hdmi_ctx = (struct exynos_drm_hdmi_context *)
+				to_context(pd->hdmi_dev);
+	if (!ctx->hdmi_ctx) {
+		DRM_DEBUG_KMS("hdmi context is null.\n");
+		ret = -EFAULT;
+		goto err_mixerdrv;
+	}
+
+	ctx->hdmi_ctx->drm_dev = drm_dev;
+
+	ctx->mixer_ctx = (struct exynos_drm_hdmi_context *)
+				to_context(pd->mixer_dev);
+	if (!ctx->mixer_ctx) {
+		DRM_DEBUG_KMS("mixer context is null.\n");
+		ret = -EFAULT;
+		goto err_mixerdrv;
+	}
+
+	ctx->mixer_ctx->drm_dev = drm_dev;
+
+	return 0;
+
+err_mixerdrv:
+	platform_driver_unregister(&mixer_driver);
+err_hdmidrv:
+	platform_driver_unregister(&hdmi_driver);
+	return ret;
+}
+
+static void hdmi_subdrv_remove(struct drm_device *drm_dev)
+{
+	DRM_DEBUG_KMS("%s\n", __FILE__);
+
+	platform_driver_unregister(&hdmi_driver);
+	platform_driver_unregister(&mixer_driver);
+}
+
+static void exynos_drm_hdmi_late_probe(struct work_struct *work)
+{
+	struct drm_hdmi_context *ctx = container_of(work,
+				struct drm_hdmi_context, work);
+
+	/*
+	 * this function calls subdrv->probe() so this must be called
+	 * after probe context.
+	 *
+	 * PS. subdrv->probe() will call platform_driver_register() to probe
+	 * hdmi and mixer driver.
+	 */
+	exynos_drm_subdrv_register(&ctx->subdrv);
+}
+
+static int __devinit exynos_drm_hdmi_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct exynos_drm_subdrv *subdrv;
+	struct drm_hdmi_context *ctx;
+
+	DRM_DEBUG_KMS("%s\n", __FILE__);
+
+	ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
+	if (!ctx) {
+		DRM_LOG_KMS("failed to alloc common hdmi context.\n");
+		return -ENOMEM;
+	}
+
+	subdrv = &ctx->subdrv;
+
+	subdrv->probe = hdmi_subdrv_probe;
+	subdrv->remove = hdmi_subdrv_remove;
+	subdrv->manager.pipe = -1;
+	subdrv->manager.ops = &drm_hdmi_manager_ops;
+	subdrv->manager.overlay_ops = &drm_hdmi_overlay_ops;
+	subdrv->manager.display_ops = &drm_hdmi_display_ops;
+	subdrv->manager.dev = dev;
+
+	platform_set_drvdata(pdev, subdrv);
+
+	INIT_WORK(&ctx->work, exynos_drm_hdmi_late_probe);
+
+	schedule_work(&ctx->work);
+
+	return 0;
+}
+
+static int hdmi_runtime_suspend(struct device *dev)
+{
+	DRM_DEBUG_KMS("%s\n", __FILE__);
+
+	return 0;
+}
+
+static int hdmi_runtime_resume(struct device *dev)
+{
+	DRM_DEBUG_KMS("%s\n", __FILE__);
+
+	return 0;
+}
+
+static const struct dev_pm_ops hdmi_pm_ops = {
+	.runtime_suspend = hdmi_runtime_suspend,
+	.runtime_resume	 = hdmi_runtime_resume,
+};
+
+static int __devexit exynos_drm_hdmi_remove(struct platform_device *pdev)
+{
+	struct drm_hdmi_context *ctx = platform_get_drvdata(pdev);
+
+	DRM_DEBUG_KMS("%s\n", __FILE__);
+
+	exynos_drm_subdrv_unregister(&ctx->subdrv);
+	kfree(ctx);
+
+	return 0;
+}
+
+static struct platform_driver exynos_drm_common_hdmi_driver = {
+	.probe		= exynos_drm_hdmi_probe,
+	.remove		= __devexit_p(exynos_drm_hdmi_remove),
+	.driver		= {
+		.name	= "exynos-drm-hdmi",
+		.owner	= THIS_MODULE,
+		.pm = &hdmi_pm_ops,
+	},
+};
+
+static int __init exynos_drm_hdmi_init(void)
+{
+	int ret;
+
+	DRM_DEBUG_KMS("%s\n", __FILE__);
+
+	ret = platform_driver_register(&exynos_drm_common_hdmi_driver);
+	if (ret) {
+		DRM_DEBUG_KMS("failed to register hdmi common driver.\n");
+		return ret;
+	}
+
+	return ret;
+}
+
+static void __exit exynos_drm_hdmi_exit(void)
+{
+	platform_driver_unregister(&exynos_drm_common_hdmi_driver);
+}
+
+module_init(exynos_drm_hdmi_init);
+module_exit(exynos_drm_hdmi_exit);
+
+MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
+MODULE_AUTHOR("Seung-Woo Kim, <sw0312.kim@samsung.com>");
+MODULE_DESCRIPTION("Samsung SoC DRM HDMI Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/gpu/drm/exynos/exynos_drm_hdmi.h b/drivers/gpu/drm/exynos/exynos_drm_hdmi.h
new file mode 100644
index 000000000000..3c29f790ee45
--- /dev/null
+++ b/drivers/gpu/drm/exynos/exynos_drm_hdmi.h
@@ -0,0 +1,73 @@
+/* exynos_drm_hdmi.h
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * Authoer: Inki Dae <inki.dae@samsung.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef _EXYNOS_DRM_HDMI_H_
+#define _EXYNOS_DRM_HDMI_H_
+
+/*
+ * exynos hdmi common context structure.
+ *
+ * @drm_dev: pointer to drm_device.
+ * @ctx: pointer to the context of specific device driver.
+ *	this context should be hdmi_context or mixer_context.
+ */
+struct exynos_drm_hdmi_context {
+	struct drm_device	*drm_dev;
+	void			*ctx;
+};
+
+struct exynos_hdmi_display_ops {
+	bool (*is_connected)(void *ctx);
+	int (*get_edid)(void *ctx, struct drm_connector *connector,
+			u8 *edid, int len);
+	int (*check_timing)(void *ctx, void *timing);
+	int (*power_on)(void *ctx, int mode);
+};
+
+struct exynos_hdmi_manager_ops {
+	void (*mode_set)(void *ctx, void *mode);
+	void (*commit)(void *ctx);
+	void (*disable)(void *ctx);
+};
+
+struct exynos_hdmi_overlay_ops {
+	int (*enable_vblank)(void *ctx, int pipe);
+	void (*disable_vblank)(void *ctx);
+	void (*win_mode_set)(void *ctx, struct exynos_drm_overlay *overlay);
+	void (*win_commit)(void *ctx, int zpos);
+	void (*win_disable)(void *ctx, int zpos);
+};
+
+extern struct platform_driver hdmi_driver;
+extern struct platform_driver mixer_driver;
+
+void exynos_drm_display_ops_register(struct exynos_hdmi_display_ops
+					*display_ops);
+void exynos_drm_manager_ops_register(struct exynos_hdmi_manager_ops
+					*manager_ops);
+void exynos_drm_overlay_ops_register(struct exynos_hdmi_overlay_ops
+					*overlay_ops);
+
+#endif
diff --git a/drivers/gpu/drm/exynos/exynos_drm_plane.c b/drivers/gpu/drm/exynos/exynos_drm_plane.c
new file mode 100644
index 000000000000..bdcf770aa22e
--- /dev/null
+++ b/drivers/gpu/drm/exynos/exynos_drm_plane.c
@@ -0,0 +1,163 @@
+/*
+ * Copyright (C) 2011 Samsung Electronics Co.Ltd
+ * Authors: Joonyoung Shim <jy0922.shim@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include "drmP.h"
+
+#include "exynos_drm.h"
+#include "exynos_drm_crtc.h"
+#include "exynos_drm_drv.h"
+#include "exynos_drm_encoder.h"
+
+struct exynos_plane {
+	struct drm_plane		base;
+	struct exynos_drm_overlay	overlay;
+	bool				enabled;
+};
+
+static int
+exynos_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
+		     struct drm_framebuffer *fb, int crtc_x, int crtc_y,
+		     unsigned int crtc_w, unsigned int crtc_h,
+		     uint32_t src_x, uint32_t src_y,
+		     uint32_t src_w, uint32_t src_h)
+{
+	struct exynos_plane *exynos_plane =
+		container_of(plane, struct exynos_plane, base);
+	struct exynos_drm_overlay *overlay = &exynos_plane->overlay;
+	struct exynos_drm_crtc_pos pos;
+	unsigned int x = src_x >> 16;
+	unsigned int y = src_y >> 16;
+	int ret;
+
+	DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+	memset(&pos, 0, sizeof(struct exynos_drm_crtc_pos));
+	pos.crtc_x = crtc_x;
+	pos.crtc_y = crtc_y;
+	pos.crtc_w = crtc_w;
+	pos.crtc_h = crtc_h;
+
+	pos.fb_x = x;
+	pos.fb_y = y;
+
+	/* TODO: scale feature */
+	ret = exynos_drm_overlay_update(overlay, fb, &crtc->mode, &pos);
+	if (ret < 0)
+		return ret;
+
+	exynos_drm_fn_encoder(crtc, overlay,
+			exynos_drm_encoder_crtc_mode_set);
+	exynos_drm_fn_encoder(crtc, &overlay->zpos,
+			exynos_drm_encoder_crtc_plane_commit);
+
+	exynos_plane->enabled = true;
+
+	return 0;
+}
+
+static int exynos_disable_plane(struct drm_plane *plane)
+{
+	struct exynos_plane *exynos_plane =
+		container_of(plane, struct exynos_plane, base);
+	struct exynos_drm_overlay *overlay = &exynos_plane->overlay;
+
+	DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+	if (!exynos_plane->enabled)
+		return 0;
+
+	exynos_drm_fn_encoder(plane->crtc, &overlay->zpos,
+			exynos_drm_encoder_crtc_disable);
+
+	exynos_plane->enabled = false;
+	exynos_plane->overlay.zpos = DEFAULT_ZPOS;
+
+	return 0;
+}
+
+static void exynos_plane_destroy(struct drm_plane *plane)
+{
+	struct exynos_plane *exynos_plane =
+		container_of(plane, struct exynos_plane, base);
+
+	DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+	exynos_disable_plane(plane);
+	drm_plane_cleanup(plane);
+	kfree(exynos_plane);
+}
+
+static struct drm_plane_funcs exynos_plane_funcs = {
+	.update_plane	= exynos_update_plane,
+	.disable_plane	= exynos_disable_plane,
+	.destroy	= exynos_plane_destroy,
+};
+
+int exynos_plane_init(struct drm_device *dev, unsigned int nr)
+{
+	struct exynos_plane *exynos_plane;
+	uint32_t possible_crtcs;
+
+	exynos_plane = kzalloc(sizeof(struct exynos_plane), GFP_KERNEL);
+	if (!exynos_plane)
+		return -ENOMEM;
+
+	/* all CRTCs are available */
+	possible_crtcs = (1 << MAX_CRTC) - 1;
+
+	exynos_plane->overlay.zpos = DEFAULT_ZPOS;
+
+	/* TODO: format */
+	return drm_plane_init(dev, &exynos_plane->base, possible_crtcs,
+			      &exynos_plane_funcs, NULL, 0, false);
+}
+
+int exynos_plane_set_zpos_ioctl(struct drm_device *dev, void *data,
+				struct drm_file *file_priv)
+{
+	struct drm_exynos_plane_set_zpos *zpos_req = data;
+	struct drm_mode_object *obj;
+	struct drm_plane *plane;
+	struct exynos_plane *exynos_plane;
+	int ret = 0;
+
+	DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+	if (!drm_core_check_feature(dev, DRIVER_MODESET))
+		return -EINVAL;
+
+	if (zpos_req->zpos < 0 || zpos_req->zpos >= MAX_PLANE) {
+		if (zpos_req->zpos != DEFAULT_ZPOS) {
+			DRM_ERROR("zpos not within limits\n");
+			return -EINVAL;
+		}
+	}
+
+	mutex_lock(&dev->mode_config.mutex);
+
+	obj = drm_mode_object_find(dev, zpos_req->plane_id,
+			DRM_MODE_OBJECT_PLANE);
+	if (!obj) {
+		DRM_DEBUG_KMS("Unknown plane ID %d\n",
+			      zpos_req->plane_id);
+		ret = -EINVAL;
+		goto out;
+	}
+
+	plane = obj_to_plane(obj);
+	exynos_plane = container_of(plane, struct exynos_plane, base);
+
+	exynos_plane->overlay.zpos = zpos_req->zpos;
+
+out:
+	mutex_unlock(&dev->mode_config.mutex);
+	return ret;
+}
diff --git a/drivers/gpu/drm/exynos/exynos_drm_plane.h b/drivers/gpu/drm/exynos/exynos_drm_plane.h
new file mode 100644
index 000000000000..16b71f8217e7
--- /dev/null
+++ b/drivers/gpu/drm/exynos/exynos_drm_plane.h
@@ -0,0 +1,14 @@
+/*
+ * Copyright (C) 2011 Samsung Electronics Co.Ltd
+ * Authors: Joonyoung Shim <jy0922.shim@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ */
+
+int exynos_plane_init(struct drm_device *dev, unsigned int nr);
+int exynos_plane_set_zpos_ioctl(struct drm_device *dev, void *data,
+				struct drm_file *file_priv);
diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
new file mode 100644
index 000000000000..f48f7ce92f5f
--- /dev/null
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -0,0 +1,1176 @@
+/*
+ * Copyright (C) 2011 Samsung Electronics Co.Ltd
+ * Authors:
+ * Seung-Woo Kim <sw0312.kim@samsung.com>
+ *	Inki Dae <inki.dae@samsung.com>
+ *	Joonyoung Shim <jy0922.shim@samsung.com>
+ *
+ * Based on drivers/media/video/s5p-tv/hdmi_drv.c
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include "drmP.h"
+#include "drm_edid.h"
+#include "drm_crtc_helper.h"
+
+#include "regs-hdmi.h"
+
+#include <linux/kernel.h>
+#include <linux/spinlock.h>
+#include <linux/wait.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/delay.h>
+#include <linux/pm_runtime.h>
+#include <linux/clk.h>
+#include <linux/regulator/consumer.h>
+
+#include <drm/exynos_drm.h>
+
+#include "exynos_drm_drv.h"
+#include "exynos_drm_hdmi.h"
+
+#include "exynos_hdmi.h"
+
+#define HDMI_OVERLAY_NUMBER	3
+#define get_hdmi_context(dev)	platform_get_drvdata(to_platform_device(dev))
+
+static const u8 hdmiphy_conf27[32] = {
+	0x01, 0x05, 0x00, 0xD8, 0x10, 0x1C, 0x30, 0x40,
+	0x6B, 0x10, 0x02, 0x51, 0xDF, 0xF2, 0x54, 0x87,
+	0x84, 0x00, 0x30, 0x38, 0x00, 0x08, 0x10, 0xE0,
+	0x22, 0x40, 0xE3, 0x26, 0x00, 0x00, 0x00, 0x00,
+};
+
+static const u8 hdmiphy_conf27_027[32] = {
+	0x01, 0x05, 0x00, 0xD4, 0x10, 0x9C, 0x09, 0x64,
+	0x6B, 0x10, 0x02, 0x51, 0xDF, 0xF2, 0x54, 0x87,
+	0x84, 0x00, 0x30, 0x38, 0x00, 0x08, 0x10, 0xE0,
+	0x22, 0x40, 0xE3, 0x26, 0x00, 0x00, 0x00, 0x00,
+};
+
+static const u8 hdmiphy_conf74_175[32] = {
+	0x01, 0x05, 0x00, 0xD8, 0x10, 0x9C, 0xef, 0x5B,
+	0x6D, 0x10, 0x01, 0x51, 0xef, 0xF3, 0x54, 0xb9,
+	0x84, 0x00, 0x30, 0x38, 0x00, 0x08, 0x10, 0xE0,
+	0x22, 0x40, 0xa5, 0x26, 0x01, 0x00, 0x00, 0x00,
+};
+
+static const u8 hdmiphy_conf74_25[32] = {
+	0x01, 0x05, 0x00, 0xd8, 0x10, 0x9c, 0xf8, 0x40,
+	0x6a, 0x10, 0x01, 0x51, 0xff, 0xf1, 0x54, 0xba,
+	0x84, 0x00, 0x10, 0x38, 0x00, 0x08, 0x10, 0xe0,
+	0x22, 0x40, 0xa4, 0x26, 0x01, 0x00, 0x00, 0x00,
+};
+
+static const u8 hdmiphy_conf148_5[32] = {
+	0x01, 0x05, 0x00, 0xD8, 0x10, 0x9C, 0xf8, 0x40,
+	0x6A, 0x18, 0x00, 0x51, 0xff, 0xF1, 0x54, 0xba,
+	0x84, 0x00, 0x10, 0x38, 0x00, 0x08, 0x10, 0xE0,
+	0x22, 0x40, 0xa4, 0x26, 0x02, 0x00, 0x00, 0x00,
+};
+
+struct hdmi_tg_regs {
+	u8 cmd;
+	u8 h_fsz_l;
+	u8 h_fsz_h;
+	u8 hact_st_l;
+	u8 hact_st_h;
+	u8 hact_sz_l;
+	u8 hact_sz_h;
+	u8 v_fsz_l;
+	u8 v_fsz_h;
+	u8 vsync_l;
+	u8 vsync_h;
+	u8 vsync2_l;
+	u8 vsync2_h;
+	u8 vact_st_l;
+	u8 vact_st_h;
+	u8 vact_sz_l;
+	u8 vact_sz_h;
+	u8 field_chg_l;
+	u8 field_chg_h;
+	u8 vact_st2_l;
+	u8 vact_st2_h;
+	u8 vsync_top_hdmi_l;
+	u8 vsync_top_hdmi_h;
+	u8 vsync_bot_hdmi_l;
+	u8 vsync_bot_hdmi_h;
+	u8 field_top_hdmi_l;
+	u8 field_top_hdmi_h;
+	u8 field_bot_hdmi_l;
+	u8 field_bot_hdmi_h;
+};
+
+struct hdmi_core_regs {
+	u8 h_blank[2];
+	u8 v_blank[3];
+	u8 h_v_line[3];
+	u8 vsync_pol[1];
+	u8 int_pro_mode[1];
+	u8 v_blank_f[3];
+	u8 h_sync_gen[3];
+	u8 v_sync_gen1[3];
+	u8 v_sync_gen2[3];
+	u8 v_sync_gen3[3];
+};
+
+struct hdmi_preset_conf {
+	struct hdmi_core_regs core;
+	struct hdmi_tg_regs tg;
+};
+
+static const struct hdmi_preset_conf hdmi_conf_480p = {
+	.core = {
+		.h_blank = {0x8a, 0x00},
+		.v_blank = {0x0d, 0x6a, 0x01},
+		.h_v_line = {0x0d, 0xa2, 0x35},
+		.vsync_pol = {0x01},
+		.int_pro_mode = {0x00},
+		.v_blank_f = {0x00, 0x00, 0x00},
+		.h_sync_gen = {0x0e, 0x30, 0x11},
+		.v_sync_gen1 = {0x0f, 0x90, 0x00},
+		/* other don't care */
+	},
+	.tg = {
+		0x00, /* cmd */
+		0x5a, 0x03, /* h_fsz */
+		0x8a, 0x00, 0xd0, 0x02, /* hact */
+		0x0d, 0x02, /* v_fsz */
+		0x01, 0x00, 0x33, 0x02, /* vsync */
+		0x2d, 0x00, 0xe0, 0x01, /* vact */
+		0x33, 0x02, /* field_chg */
+		0x49, 0x02, /* vact_st2 */
+		0x01, 0x00, 0x33, 0x02, /* vsync top/bot */
+		0x01, 0x00, 0x33, 0x02, /* field top/bot */
+	},
+};
+
+static const struct hdmi_preset_conf hdmi_conf_720p60 = {
+	.core = {
+		.h_blank = {0x72, 0x01},
+		.v_blank = {0xee, 0xf2, 0x00},
+		.h_v_line = {0xee, 0x22, 0x67},
+		.vsync_pol = {0x00},
+		.int_pro_mode = {0x00},
+		.v_blank_f = {0x00, 0x00, 0x00}, /* don't care */
+		.h_sync_gen = {0x6c, 0x50, 0x02},
+		.v_sync_gen1 = {0x0a, 0x50, 0x00},
+		.v_sync_gen2 = {0x01, 0x10, 0x00},
+		.v_sync_gen3 = {0x01, 0x10, 0x00},
+		/* other don't care */
+	},
+	.tg = {
+		0x00, /* cmd */
+		0x72, 0x06, /* h_fsz */
+		0x71, 0x01, 0x01, 0x05, /* hact */
+		0xee, 0x02, /* v_fsz */
+		0x01, 0x00, 0x33, 0x02, /* vsync */
+		0x1e, 0x00, 0xd0, 0x02, /* vact */
+		0x33, 0x02, /* field_chg */
+		0x49, 0x02, /* vact_st2 */
+		0x01, 0x00, 0x01, 0x00, /* vsync top/bot */
+		0x01, 0x00, 0x33, 0x02, /* field top/bot */
+	},
+};
+
+static const struct hdmi_preset_conf hdmi_conf_1080i50 = {
+	.core = {
+		.h_blank = {0xd0, 0x02},
+		.v_blank = {0x32, 0xB2, 0x00},
+		.h_v_line = {0x65, 0x04, 0xa5},
+		.vsync_pol = {0x00},
+		.int_pro_mode = {0x01},
+		.v_blank_f = {0x49, 0x2A, 0x23},
+		.h_sync_gen = {0x0E, 0xEA, 0x08},
+		.v_sync_gen1 = {0x07, 0x20, 0x00},
+		.v_sync_gen2 = {0x39, 0x42, 0x23},
+		.v_sync_gen3 = {0x38, 0x87, 0x73},
+		/* other don't care */
+	},
+	.tg = {
+		0x00, /* cmd */
+		0x50, 0x0A, /* h_fsz */
+		0xCF, 0x02, 0x81, 0x07, /* hact */
+		0x65, 0x04, /* v_fsz */
+		0x01, 0x00, 0x33, 0x02, /* vsync */
+		0x16, 0x00, 0x1c, 0x02, /* vact */
+		0x33, 0x02, /* field_chg */
+		0x49, 0x02, /* vact_st2 */
+		0x01, 0x00, 0x33, 0x02, /* vsync top/bot */
+		0x01, 0x00, 0x33, 0x02, /* field top/bot */
+	},
+};
+
+static const struct hdmi_preset_conf hdmi_conf_1080p50 = {
+	.core = {
+		.h_blank = {0xd0, 0x02},
+		.v_blank = {0x65, 0x6c, 0x01},
+		.h_v_line = {0x65, 0x04, 0xa5},
+		.vsync_pol = {0x00},
+		.int_pro_mode = {0x00},
+		.v_blank_f = {0x00, 0x00, 0x00}, /* don't care */
+		.h_sync_gen = {0x0e, 0xea, 0x08},
+		.v_sync_gen1 = {0x09, 0x40, 0x00},
+		.v_sync_gen2 = {0x01, 0x10, 0x00},
+		.v_sync_gen3 = {0x01, 0x10, 0x00},
+		/* other don't care */
+	},
+	.tg = {
+		0x00, /* cmd */
+		0x50, 0x0A, /* h_fsz */
+		0xCF, 0x02, 0x81, 0x07, /* hact */
+		0x65, 0x04, /* v_fsz */
+		0x01, 0x00, 0x33, 0x02, /* vsync */
+		0x2d, 0x00, 0x38, 0x04, /* vact */
+		0x33, 0x02, /* field_chg */
+		0x48, 0x02, /* vact_st2 */
+		0x01, 0x00, 0x01, 0x00, /* vsync top/bot */
+		0x01, 0x00, 0x33, 0x02, /* field top/bot */
+	},
+};
+
+static const struct hdmi_preset_conf hdmi_conf_1080i60 = {
+	.core = {
+		.h_blank = {0x18, 0x01},
+		.v_blank = {0x32, 0xB2, 0x00},
+		.h_v_line = {0x65, 0x84, 0x89},
+		.vsync_pol = {0x00},
+		.int_pro_mode = {0x01},
+		.v_blank_f = {0x49, 0x2A, 0x23},
+		.h_sync_gen = {0x56, 0x08, 0x02},
+		.v_sync_gen1 = {0x07, 0x20, 0x00},
+		.v_sync_gen2 = {0x39, 0x42, 0x23},
+		.v_sync_gen3 = {0xa4, 0x44, 0x4a},
+		/* other don't care */
+	},
+	.tg = {
+		0x00, /* cmd */
+		0x98, 0x08, /* h_fsz */
+		0x17, 0x01, 0x81, 0x07, /* hact */
+		0x65, 0x04, /* v_fsz */
+		0x01, 0x00, 0x33, 0x02, /* vsync */
+		0x16, 0x00, 0x1c, 0x02, /* vact */
+		0x33, 0x02, /* field_chg */
+		0x49, 0x02, /* vact_st2 */
+		0x01, 0x00, 0x33, 0x02, /* vsync top/bot */
+		0x01, 0x00, 0x33, 0x02, /* field top/bot */
+	},
+};
+
+static const struct hdmi_preset_conf hdmi_conf_1080p60 = {
+	.core = {
+		.h_blank = {0x18, 0x01},
+		.v_blank = {0x65, 0x6c, 0x01},
+		.h_v_line = {0x65, 0x84, 0x89},
+		.vsync_pol = {0x00},
+		.int_pro_mode = {0x00},
+		.v_blank_f = {0x00, 0x00, 0x00}, /* don't care */
+		.h_sync_gen = {0x56, 0x08, 0x02},
+		.v_sync_gen1 = {0x09, 0x40, 0x00},
+		.v_sync_gen2 = {0x01, 0x10, 0x00},
+		.v_sync_gen3 = {0x01, 0x10, 0x00},
+		/* other don't care */
+	},
+	.tg = {
+		0x00, /* cmd */
+		0x98, 0x08, /* h_fsz */
+		0x17, 0x01, 0x81, 0x07, /* hact */
+		0x65, 0x04, /* v_fsz */
+		0x01, 0x00, 0x33, 0x02, /* vsync */
+		0x2d, 0x00, 0x38, 0x04, /* vact */
+		0x33, 0x02, /* field_chg */
+		0x48, 0x02, /* vact_st2 */
+		0x01, 0x00, 0x01, 0x00, /* vsync top/bot */
+		0x01, 0x00, 0x33, 0x02, /* field top/bot */
+	},
+};
+
+static const struct hdmi_conf hdmi_confs[] = {
+	{ 1280, 720, 60, false, hdmiphy_conf74_25, &hdmi_conf_720p60 },
+	{ 1280, 720, 50, false, hdmiphy_conf74_25, &hdmi_conf_720p60 },
+	{ 720, 480, 60, false, hdmiphy_conf27_027, &hdmi_conf_480p },
+	{ 1920, 1080, 50, true, hdmiphy_conf74_25, &hdmi_conf_1080i50 },
+	{ 1920, 1080, 50, false, hdmiphy_conf148_5, &hdmi_conf_1080p50 },
+	{ 1920, 1080, 60, true, hdmiphy_conf74_25, &hdmi_conf_1080i60 },
+	{ 1920, 1080, 60, false, hdmiphy_conf148_5, &hdmi_conf_1080p60 },
+};
+
+
+static inline u32 hdmi_reg_read(struct hdmi_context *hdata, u32 reg_id)
+{
+	return readl(hdata->regs + reg_id);
+}
+
+static inline void hdmi_reg_writeb(struct hdmi_context *hdata,
+				 u32 reg_id, u8 value)
+{
+	writeb(value, hdata->regs + reg_id);
+}
+
+static inline void hdmi_reg_writemask(struct hdmi_context *hdata,
+				 u32 reg_id, u32 value, u32 mask)
+{
+	u32 old = readl(hdata->regs + reg_id);
+	value = (value & mask) | (old & ~mask);
+	writel(value, hdata->regs + reg_id);
+}
+
+static void hdmi_regs_dump(struct hdmi_context *hdata, char *prefix)
+{
+#define DUMPREG(reg_id) \
+	DRM_DEBUG_KMS("%s:" #reg_id " = %08x\n", prefix, \
+	readl(hdata->regs + reg_id))
+	DRM_DEBUG_KMS("%s: ---- CONTROL REGISTERS ----\n", prefix);
+	DUMPREG(HDMI_INTC_FLAG);
+	DUMPREG(HDMI_INTC_CON);
+	DUMPREG(HDMI_HPD_STATUS);
+	DUMPREG(HDMI_PHY_RSTOUT);
+	DUMPREG(HDMI_PHY_VPLL);
+	DUMPREG(HDMI_PHY_CMU);
+	DUMPREG(HDMI_CORE_RSTOUT);
+
+	DRM_DEBUG_KMS("%s: ---- CORE REGISTERS ----\n", prefix);
+	DUMPREG(HDMI_CON_0);
+	DUMPREG(HDMI_CON_1);
+	DUMPREG(HDMI_CON_2);
+	DUMPREG(HDMI_SYS_STATUS);
+	DUMPREG(HDMI_PHY_STATUS);
+	DUMPREG(HDMI_STATUS_EN);
+	DUMPREG(HDMI_HPD);
+	DUMPREG(HDMI_MODE_SEL);
+	DUMPREG(HDMI_HPD_GEN);
+	DUMPREG(HDMI_DC_CONTROL);
+	DUMPREG(HDMI_VIDEO_PATTERN_GEN);
+
+	DRM_DEBUG_KMS("%s: ---- CORE SYNC REGISTERS ----\n", prefix);
+	DUMPREG(HDMI_H_BLANK_0);
+	DUMPREG(HDMI_H_BLANK_1);
+	DUMPREG(HDMI_V_BLANK_0);
+	DUMPREG(HDMI_V_BLANK_1);
+	DUMPREG(HDMI_V_BLANK_2);
+	DUMPREG(HDMI_H_V_LINE_0);
+	DUMPREG(HDMI_H_V_LINE_1);
+	DUMPREG(HDMI_H_V_LINE_2);
+	DUMPREG(HDMI_VSYNC_POL);
+	DUMPREG(HDMI_INT_PRO_MODE);
+	DUMPREG(HDMI_V_BLANK_F_0);
+	DUMPREG(HDMI_V_BLANK_F_1);
+	DUMPREG(HDMI_V_BLANK_F_2);
+	DUMPREG(HDMI_H_SYNC_GEN_0);
+	DUMPREG(HDMI_H_SYNC_GEN_1);
+	DUMPREG(HDMI_H_SYNC_GEN_2);
+	DUMPREG(HDMI_V_SYNC_GEN_1_0);
+	DUMPREG(HDMI_V_SYNC_GEN_1_1);
+	DUMPREG(HDMI_V_SYNC_GEN_1_2);
+	DUMPREG(HDMI_V_SYNC_GEN_2_0);
+	DUMPREG(HDMI_V_SYNC_GEN_2_1);
+	DUMPREG(HDMI_V_SYNC_GEN_2_2);
+	DUMPREG(HDMI_V_SYNC_GEN_3_0);
+	DUMPREG(HDMI_V_SYNC_GEN_3_1);
+	DUMPREG(HDMI_V_SYNC_GEN_3_2);
+
+	DRM_DEBUG_KMS("%s: ---- TG REGISTERS ----\n", prefix);
+	DUMPREG(HDMI_TG_CMD);
+	DUMPREG(HDMI_TG_H_FSZ_L);
+	DUMPREG(HDMI_TG_H_FSZ_H);
+	DUMPREG(HDMI_TG_HACT_ST_L);
+	DUMPREG(HDMI_TG_HACT_ST_H);
+	DUMPREG(HDMI_TG_HACT_SZ_L);
+	DUMPREG(HDMI_TG_HACT_SZ_H);
+	DUMPREG(HDMI_TG_V_FSZ_L);
+	DUMPREG(HDMI_TG_V_FSZ_H);
+	DUMPREG(HDMI_TG_VSYNC_L);
+	DUMPREG(HDMI_TG_VSYNC_H);
+	DUMPREG(HDMI_TG_VSYNC2_L);
+	DUMPREG(HDMI_TG_VSYNC2_H);
+	DUMPREG(HDMI_TG_VACT_ST_L);
+	DUMPREG(HDMI_TG_VACT_ST_H);
+	DUMPREG(HDMI_TG_VACT_SZ_L);
+	DUMPREG(HDMI_TG_VACT_SZ_H);
+	DUMPREG(HDMI_TG_FIELD_CHG_L);
+	DUMPREG(HDMI_TG_FIELD_CHG_H);
+	DUMPREG(HDMI_TG_VACT_ST2_L);
+	DUMPREG(HDMI_TG_VACT_ST2_H);
+	DUMPREG(HDMI_TG_VSYNC_TOP_HDMI_L);
+	DUMPREG(HDMI_TG_VSYNC_TOP_HDMI_H);
+	DUMPREG(HDMI_TG_VSYNC_BOT_HDMI_L);
+	DUMPREG(HDMI_TG_VSYNC_BOT_HDMI_H);
+	DUMPREG(HDMI_TG_FIELD_TOP_HDMI_L);
+	DUMPREG(HDMI_TG_FIELD_TOP_HDMI_H);
+	DUMPREG(HDMI_TG_FIELD_BOT_HDMI_L);
+	DUMPREG(HDMI_TG_FIELD_BOT_HDMI_H);
+#undef DUMPREG
+}
+
+static int hdmi_conf_index(struct drm_display_mode *mode)
+{
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(hdmi_confs); ++i)
+		if (hdmi_confs[i].width == mode->hdisplay &&
+				hdmi_confs[i].height == mode->vdisplay &&
+				hdmi_confs[i].vrefresh == mode->vrefresh &&
+				hdmi_confs[i].interlace ==
+				((mode->flags & DRM_MODE_FLAG_INTERLACE) ?
+				 true : false))
+			return i;
+
+	return -1;
+}
+
+static bool hdmi_is_connected(void *ctx)
+{
+	struct hdmi_context *hdata = (struct hdmi_context *)ctx;
+	u32 val = hdmi_reg_read(hdata, HDMI_HPD_STATUS);
+
+	if (val)
+		return true;
+
+	return false;
+}
+
+static int hdmi_get_edid(void *ctx, struct drm_connector *connector,
+				u8 *edid, int len)
+{
+	struct edid *raw_edid;
+	struct hdmi_context *hdata = (struct hdmi_context *)ctx;
+
+	DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+	if (!hdata->ddc_port)
+		return -ENODEV;
+
+	raw_edid = drm_get_edid(connector, hdata->ddc_port->adapter);
+	if (raw_edid) {
+		memcpy(edid, raw_edid, min((1 + raw_edid->extensions)
+					* EDID_LENGTH, len));
+		DRM_DEBUG_KMS("width[%d] x height[%d]\n",
+				raw_edid->width_cm, raw_edid->height_cm);
+	} else {
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
+static int hdmi_check_timing(void *ctx, void *timing)
+{
+	struct fb_videomode *check_timing = timing;
+	int i;
+
+	DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+	DRM_DEBUG_KMS("[%d]x[%d] [%d]Hz [%x]\n", check_timing->xres,
+			check_timing->yres, check_timing->refresh,
+			check_timing->vmode);
+
+	for (i = 0; i < ARRAY_SIZE(hdmi_confs); ++i)
+		if (hdmi_confs[i].width == check_timing->xres &&
+			hdmi_confs[i].height == check_timing->yres &&
+			hdmi_confs[i].vrefresh == check_timing->refresh &&
+			hdmi_confs[i].interlace ==
+			((check_timing->vmode & FB_VMODE_INTERLACED) ?
+			 true : false))
+			return 0;
+
+	return -EINVAL;
+}
+
+static int hdmi_display_power_on(void *ctx, int mode)
+{
+	DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+	switch (mode) {
+	case DRM_MODE_DPMS_ON:
+		DRM_DEBUG_KMS("hdmi [on]\n");
+		break;
+	case DRM_MODE_DPMS_STANDBY:
+		break;
+	case DRM_MODE_DPMS_SUSPEND:
+		break;
+	case DRM_MODE_DPMS_OFF:
+		DRM_DEBUG_KMS("hdmi [off]\n");
+		break;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+static struct exynos_hdmi_display_ops display_ops = {
+	.is_connected	= hdmi_is_connected,
+	.get_edid	= hdmi_get_edid,
+	.check_timing	= hdmi_check_timing,
+	.power_on	= hdmi_display_power_on,
+};
+
+static void hdmi_conf_reset(struct hdmi_context *hdata)
+{
+	/* disable hpd handle for drm */
+	hdata->hpd_handle = false;
+
+	/* resetting HDMI core */
+	hdmi_reg_writemask(hdata, HDMI_CORE_RSTOUT,  0, HDMI_CORE_SW_RSTOUT);
+	mdelay(10);
+	hdmi_reg_writemask(hdata, HDMI_CORE_RSTOUT, ~0, HDMI_CORE_SW_RSTOUT);
+	mdelay(10);
+
+	/* enable hpd handle for drm */
+	hdata->hpd_handle = true;
+}
+
+static void hdmi_conf_init(struct hdmi_context *hdata)
+{
+	/* disable hpd handle for drm */
+	hdata->hpd_handle = false;
+
+	/* enable HPD interrupts */
+	hdmi_reg_writemask(hdata, HDMI_INTC_CON, 0, HDMI_INTC_EN_GLOBAL |
+		HDMI_INTC_EN_HPD_PLUG | HDMI_INTC_EN_HPD_UNPLUG);
+	mdelay(10);
+	hdmi_reg_writemask(hdata, HDMI_INTC_CON, ~0, HDMI_INTC_EN_GLOBAL |
+		HDMI_INTC_EN_HPD_PLUG | HDMI_INTC_EN_HPD_UNPLUG);
+
+	/* choose HDMI mode */
+	hdmi_reg_writemask(hdata, HDMI_MODE_SEL,
+		HDMI_MODE_HDMI_EN, HDMI_MODE_MASK);
+	/* disable bluescreen */
+	hdmi_reg_writemask(hdata, HDMI_CON_0, 0, HDMI_BLUE_SCR_EN);
+	/* choose bluescreen (fecal) color */
+	hdmi_reg_writeb(hdata, HDMI_BLUE_SCREEN_0, 0x12);
+	hdmi_reg_writeb(hdata, HDMI_BLUE_SCREEN_1, 0x34);
+	hdmi_reg_writeb(hdata, HDMI_BLUE_SCREEN_2, 0x56);
+	/* enable AVI packet every vsync, fixes purple line problem */
+	hdmi_reg_writeb(hdata, HDMI_AVI_CON, 0x02);
+	/* force RGB, look to CEA-861-D, table 7 for more detail */
+	hdmi_reg_writeb(hdata, HDMI_AVI_BYTE(0), 0 << 5);
+	hdmi_reg_writemask(hdata, HDMI_CON_1, 0x10 << 5, 0x11 << 5);
+
+	hdmi_reg_writeb(hdata, HDMI_SPD_CON, 0x02);
+	hdmi_reg_writeb(hdata, HDMI_AUI_CON, 0x02);
+	hdmi_reg_writeb(hdata, HDMI_ACR_CON, 0x04);
+
+	/* enable hpd handle for drm */
+	hdata->hpd_handle = true;
+}
+
+static void hdmi_timing_apply(struct hdmi_context *hdata,
+				 const struct hdmi_preset_conf *conf)
+{
+	const struct hdmi_core_regs *core = &conf->core;
+	const struct hdmi_tg_regs *tg = &conf->tg;
+	int tries;
+
+	/* setting core registers */
+	hdmi_reg_writeb(hdata, HDMI_H_BLANK_0, core->h_blank[0]);
+	hdmi_reg_writeb(hdata, HDMI_H_BLANK_1, core->h_blank[1]);
+	hdmi_reg_writeb(hdata, HDMI_V_BLANK_0, core->v_blank[0]);
+	hdmi_reg_writeb(hdata, HDMI_V_BLANK_1, core->v_blank[1]);
+	hdmi_reg_writeb(hdata, HDMI_V_BLANK_2, core->v_blank[2]);
+	hdmi_reg_writeb(hdata, HDMI_H_V_LINE_0, core->h_v_line[0]);
+	hdmi_reg_writeb(hdata, HDMI_H_V_LINE_1, core->h_v_line[1]);
+	hdmi_reg_writeb(hdata, HDMI_H_V_LINE_2, core->h_v_line[2]);
+	hdmi_reg_writeb(hdata, HDMI_VSYNC_POL, core->vsync_pol[0]);
+	hdmi_reg_writeb(hdata, HDMI_INT_PRO_MODE, core->int_pro_mode[0]);
+	hdmi_reg_writeb(hdata, HDMI_V_BLANK_F_0, core->v_blank_f[0]);
+	hdmi_reg_writeb(hdata, HDMI_V_BLANK_F_1, core->v_blank_f[1]);
+	hdmi_reg_writeb(hdata, HDMI_V_BLANK_F_2, core->v_blank_f[2]);
+	hdmi_reg_writeb(hdata, HDMI_H_SYNC_GEN_0, core->h_sync_gen[0]);
+	hdmi_reg_writeb(hdata, HDMI_H_SYNC_GEN_1, core->h_sync_gen[1]);
+	hdmi_reg_writeb(hdata, HDMI_H_SYNC_GEN_2, core->h_sync_gen[2]);
+	hdmi_reg_writeb(hdata, HDMI_V_SYNC_GEN_1_0, core->v_sync_gen1[0]);
+	hdmi_reg_writeb(hdata, HDMI_V_SYNC_GEN_1_1, core->v_sync_gen1[1]);
+	hdmi_reg_writeb(hdata, HDMI_V_SYNC_GEN_1_2, core->v_sync_gen1[2]);
+	hdmi_reg_writeb(hdata, HDMI_V_SYNC_GEN_2_0, core->v_sync_gen2[0]);
+	hdmi_reg_writeb(hdata, HDMI_V_SYNC_GEN_2_1, core->v_sync_gen2[1]);
+	hdmi_reg_writeb(hdata, HDMI_V_SYNC_GEN_2_2, core->v_sync_gen2[2]);
+	hdmi_reg_writeb(hdata, HDMI_V_SYNC_GEN_3_0, core->v_sync_gen3[0]);
+	hdmi_reg_writeb(hdata, HDMI_V_SYNC_GEN_3_1, core->v_sync_gen3[1]);
+	hdmi_reg_writeb(hdata, HDMI_V_SYNC_GEN_3_2, core->v_sync_gen3[2]);
+	/* Timing generator registers */
+	hdmi_reg_writeb(hdata, HDMI_TG_H_FSZ_L, tg->h_fsz_l);
+	hdmi_reg_writeb(hdata, HDMI_TG_H_FSZ_H, tg->h_fsz_h);
+	hdmi_reg_writeb(hdata, HDMI_TG_HACT_ST_L, tg->hact_st_l);
+	hdmi_reg_writeb(hdata, HDMI_TG_HACT_ST_H, tg->hact_st_h);
+	hdmi_reg_writeb(hdata, HDMI_TG_HACT_SZ_L, tg->hact_sz_l);
+	hdmi_reg_writeb(hdata, HDMI_TG_HACT_SZ_H, tg->hact_sz_h);
+	hdmi_reg_writeb(hdata, HDMI_TG_V_FSZ_L, tg->v_fsz_l);
+	hdmi_reg_writeb(hdata, HDMI_TG_V_FSZ_H, tg->v_fsz_h);
+	hdmi_reg_writeb(hdata, HDMI_TG_VSYNC_L, tg->vsync_l);
+	hdmi_reg_writeb(hdata, HDMI_TG_VSYNC_H, tg->vsync_h);
+	hdmi_reg_writeb(hdata, HDMI_TG_VSYNC2_L, tg->vsync2_l);
+	hdmi_reg_writeb(hdata, HDMI_TG_VSYNC2_H, tg->vsync2_h);
+	hdmi_reg_writeb(hdata, HDMI_TG_VACT_ST_L, tg->vact_st_l);
+	hdmi_reg_writeb(hdata, HDMI_TG_VACT_ST_H, tg->vact_st_h);
+	hdmi_reg_writeb(hdata, HDMI_TG_VACT_SZ_L, tg->vact_sz_l);
+	hdmi_reg_writeb(hdata, HDMI_TG_VACT_SZ_H, tg->vact_sz_h);
+	hdmi_reg_writeb(hdata, HDMI_TG_FIELD_CHG_L, tg->field_chg_l);
+	hdmi_reg_writeb(hdata, HDMI_TG_FIELD_CHG_H, tg->field_chg_h);
+	hdmi_reg_writeb(hdata, HDMI_TG_VACT_ST2_L, tg->vact_st2_l);
+	hdmi_reg_writeb(hdata, HDMI_TG_VACT_ST2_H, tg->vact_st2_h);
+	hdmi_reg_writeb(hdata, HDMI_TG_VSYNC_TOP_HDMI_L, tg->vsync_top_hdmi_l);
+	hdmi_reg_writeb(hdata, HDMI_TG_VSYNC_TOP_HDMI_H, tg->vsync_top_hdmi_h);
+	hdmi_reg_writeb(hdata, HDMI_TG_VSYNC_BOT_HDMI_L, tg->vsync_bot_hdmi_l);
+	hdmi_reg_writeb(hdata, HDMI_TG_VSYNC_BOT_HDMI_H, tg->vsync_bot_hdmi_h);
+	hdmi_reg_writeb(hdata, HDMI_TG_FIELD_TOP_HDMI_L, tg->field_top_hdmi_l);
+	hdmi_reg_writeb(hdata, HDMI_TG_FIELD_TOP_HDMI_H, tg->field_top_hdmi_h);
+	hdmi_reg_writeb(hdata, HDMI_TG_FIELD_BOT_HDMI_L, tg->field_bot_hdmi_l);
+	hdmi_reg_writeb(hdata, HDMI_TG_FIELD_BOT_HDMI_H, tg->field_bot_hdmi_h);
+
+	/* waiting for HDMIPHY's PLL to get to steady state */
+	for (tries = 100; tries; --tries) {
+		u32 val = hdmi_reg_read(hdata, HDMI_PHY_STATUS);
+		if (val & HDMI_PHY_STATUS_READY)
+			break;
+		mdelay(1);
+	}
+	/* steady state not achieved */
+	if (tries == 0) {
+		DRM_ERROR("hdmiphy's pll could not reach steady state.\n");
+		hdmi_regs_dump(hdata, "timing apply");
+	}
+
+	clk_disable(hdata->res.sclk_hdmi);
+	clk_set_parent(hdata->res.sclk_hdmi, hdata->res.sclk_hdmiphy);
+	clk_enable(hdata->res.sclk_hdmi);
+
+	/* enable HDMI and timing generator */
+	hdmi_reg_writemask(hdata, HDMI_CON_0, ~0, HDMI_EN);
+	if (core->int_pro_mode[0])
+		hdmi_reg_writemask(hdata, HDMI_TG_CMD, ~0, HDMI_TG_EN |
+				HDMI_FIELD_EN);
+	else
+		hdmi_reg_writemask(hdata, HDMI_TG_CMD, ~0, HDMI_TG_EN);
+}
+
+static void hdmiphy_conf_reset(struct hdmi_context *hdata)
+{
+	u8 buffer[2];
+
+	clk_disable(hdata->res.sclk_hdmi);
+	clk_set_parent(hdata->res.sclk_hdmi, hdata->res.sclk_pixel);
+	clk_enable(hdata->res.sclk_hdmi);
+
+	/* operation mode */
+	buffer[0] = 0x1f;
+	buffer[1] = 0x00;
+
+	if (hdata->hdmiphy_port)
+		i2c_master_send(hdata->hdmiphy_port, buffer, 2);
+
+	/* reset hdmiphy */
+	hdmi_reg_writemask(hdata, HDMI_PHY_RSTOUT, ~0, HDMI_PHY_SW_RSTOUT);
+	mdelay(10);
+	hdmi_reg_writemask(hdata, HDMI_PHY_RSTOUT,  0, HDMI_PHY_SW_RSTOUT);
+	mdelay(10);
+}
+
+static void hdmiphy_conf_apply(struct hdmi_context *hdata)
+{
+	u8 buffer[32];
+	u8 operation[2];
+	u8 read_buffer[32] = {0, };
+	int ret;
+	int i;
+
+	if (!hdata->hdmiphy_port) {
+		DRM_ERROR("hdmiphy is not attached\n");
+		return;
+	}
+
+	/* pixel clock */
+	memcpy(buffer, hdmi_confs[hdata->cur_conf].hdmiphy_data, 32);
+	ret = i2c_master_send(hdata->hdmiphy_port, buffer, 32);
+	if (ret != 32) {
+		DRM_ERROR("failed to configure HDMIPHY via I2C\n");
+		return;
+	}
+
+	mdelay(10);
+
+	/* operation mode */
+	operation[0] = 0x1f;
+	operation[1] = 0x80;
+
+	ret = i2c_master_send(hdata->hdmiphy_port, operation, 2);
+	if (ret != 2) {
+		DRM_ERROR("failed to enable hdmiphy\n");
+		return;
+	}
+
+	ret = i2c_master_recv(hdata->hdmiphy_port, read_buffer, 32);
+	if (ret < 0) {
+		DRM_ERROR("failed to read hdmiphy config\n");
+		return;
+	}
+
+	for (i = 0; i < ret; i++)
+		DRM_DEBUG_KMS("hdmiphy[0x%02x] write[0x%02x] - "
+			"recv [0x%02x]\n", i, buffer[i], read_buffer[i]);
+}
+
+static void hdmi_conf_apply(struct hdmi_context *hdata)
+{
+	const struct hdmi_preset_conf *conf =
+		  hdmi_confs[hdata->cur_conf].conf;
+
+	DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+	hdmiphy_conf_reset(hdata);
+	hdmiphy_conf_apply(hdata);
+
+	hdmi_conf_reset(hdata);
+	hdmi_conf_init(hdata);
+
+	/* setting core registers */
+	hdmi_timing_apply(hdata, conf);
+
+	hdmi_regs_dump(hdata, "start");
+}
+
+static void hdmi_mode_set(void *ctx, void *mode)
+{
+	struct hdmi_context *hdata = (struct hdmi_context *)ctx;
+	int conf_idx;
+
+	DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+	conf_idx = hdmi_conf_index(mode);
+	if (conf_idx >= 0 && conf_idx < ARRAY_SIZE(hdmi_confs))
+		hdata->cur_conf = conf_idx;
+	else
+		DRM_DEBUG_KMS("not supported mode\n");
+}
+
+static void hdmi_commit(void *ctx)
+{
+	struct hdmi_context *hdata = (struct hdmi_context *)ctx;
+
+	DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+	hdmi_conf_apply(hdata);
+
+	hdata->enabled = true;
+}
+
+static void hdmi_disable(void *ctx)
+{
+	struct hdmi_context *hdata = (struct hdmi_context *)ctx;
+
+	DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+	if (hdata->enabled) {
+		hdmiphy_conf_reset(hdata);
+		hdmi_conf_reset(hdata);
+	}
+}
+
+static struct exynos_hdmi_manager_ops manager_ops = {
+	.mode_set	= hdmi_mode_set,
+	.commit		= hdmi_commit,
+	.disable	= hdmi_disable,
+};
+
+/*
+ * Handle hotplug events outside the interrupt handler proper.
+ */
+static void hdmi_hotplug_func(struct work_struct *work)
+{
+	struct hdmi_context *hdata =
+		container_of(work, struct hdmi_context, hotplug_work);
+	struct exynos_drm_hdmi_context *ctx =
+		(struct exynos_drm_hdmi_context *)hdata->parent_ctx;
+
+	drm_helper_hpd_irq_event(ctx->drm_dev);
+}
+
+static irqreturn_t hdmi_irq_handler(int irq, void *arg)
+{
+	struct exynos_drm_hdmi_context *ctx = arg;
+	struct hdmi_context *hdata = (struct hdmi_context *)ctx->ctx;
+	u32 intc_flag;
+
+	intc_flag = hdmi_reg_read(hdata, HDMI_INTC_FLAG);
+	/* clearing flags for HPD plug/unplug */
+	if (intc_flag & HDMI_INTC_FLAG_HPD_UNPLUG) {
+		DRM_DEBUG_KMS("unplugged, handling:%d\n", hdata->hpd_handle);
+		hdmi_reg_writemask(hdata, HDMI_INTC_FLAG, ~0,
+			HDMI_INTC_FLAG_HPD_UNPLUG);
+	}
+	if (intc_flag & HDMI_INTC_FLAG_HPD_PLUG) {
+		DRM_DEBUG_KMS("plugged, handling:%d\n", hdata->hpd_handle);
+		hdmi_reg_writemask(hdata, HDMI_INTC_FLAG, ~0,
+			HDMI_INTC_FLAG_HPD_PLUG);
+	}
+
+	if (ctx->drm_dev && hdata->hpd_handle)
+		queue_work(hdata->wq, &hdata->hotplug_work);
+
+	return IRQ_HANDLED;
+}
+
+static int __devinit hdmi_resources_init(struct hdmi_context *hdata)
+{
+	struct device *dev = hdata->dev;
+	struct hdmi_resources *res = &hdata->res;
+	static char *supply[] = {
+		"hdmi-en",
+		"vdd",
+		"vdd_osc",
+		"vdd_pll",
+	};
+	int i, ret;
+
+	DRM_DEBUG_KMS("HDMI resource init\n");
+
+	memset(res, 0, sizeof *res);
+
+	/* get clocks, power */
+	res->hdmi = clk_get(dev, "hdmi");
+	if (IS_ERR_OR_NULL(res->hdmi)) {
+		DRM_ERROR("failed to get clock 'hdmi'\n");
+		goto fail;
+	}
+	res->sclk_hdmi = clk_get(dev, "sclk_hdmi");
+	if (IS_ERR_OR_NULL(res->sclk_hdmi)) {
+		DRM_ERROR("failed to get clock 'sclk_hdmi'\n");
+		goto fail;
+	}
+	res->sclk_pixel = clk_get(dev, "sclk_pixel");
+	if (IS_ERR_OR_NULL(res->sclk_pixel)) {
+		DRM_ERROR("failed to get clock 'sclk_pixel'\n");
+		goto fail;
+	}
+	res->sclk_hdmiphy = clk_get(dev, "sclk_hdmiphy");
+	if (IS_ERR_OR_NULL(res->sclk_hdmiphy)) {
+		DRM_ERROR("failed to get clock 'sclk_hdmiphy'\n");
+		goto fail;
+	}
+	res->hdmiphy = clk_get(dev, "hdmiphy");
+	if (IS_ERR_OR_NULL(res->hdmiphy)) {
+		DRM_ERROR("failed to get clock 'hdmiphy'\n");
+		goto fail;
+	}
+
+	clk_set_parent(res->sclk_hdmi, res->sclk_pixel);
+
+	res->regul_bulk = kzalloc(ARRAY_SIZE(supply) *
+		sizeof res->regul_bulk[0], GFP_KERNEL);
+	if (!res->regul_bulk) {
+		DRM_ERROR("failed to get memory for regulators\n");
+		goto fail;
+	}
+	for (i = 0; i < ARRAY_SIZE(supply); ++i) {
+		res->regul_bulk[i].supply = supply[i];
+		res->regul_bulk[i].consumer = NULL;
+	}
+	ret = regulator_bulk_get(dev, ARRAY_SIZE(supply), res->regul_bulk);
+	if (ret) {
+		DRM_ERROR("failed to get regulators\n");
+		goto fail;
+	}
+	res->regul_count = ARRAY_SIZE(supply);
+
+	return 0;
+fail:
+	DRM_ERROR("HDMI resource init - failed\n");
+	return -ENODEV;
+}
+
+static int hdmi_resources_cleanup(struct hdmi_context *hdata)
+{
+	struct hdmi_resources *res = &hdata->res;
+
+	regulator_bulk_free(res->regul_count, res->regul_bulk);
+	/* kfree is NULL-safe */
+	kfree(res->regul_bulk);
+	if (!IS_ERR_OR_NULL(res->hdmiphy))
+		clk_put(res->hdmiphy);
+	if (!IS_ERR_OR_NULL(res->sclk_hdmiphy))
+		clk_put(res->sclk_hdmiphy);
+	if (!IS_ERR_OR_NULL(res->sclk_pixel))
+		clk_put(res->sclk_pixel);
+	if (!IS_ERR_OR_NULL(res->sclk_hdmi))
+		clk_put(res->sclk_hdmi);
+	if (!IS_ERR_OR_NULL(res->hdmi))
+		clk_put(res->hdmi);
+	memset(res, 0, sizeof *res);
+
+	return 0;
+}
+
+static void hdmi_resource_poweron(struct hdmi_context *hdata)
+{
+	struct hdmi_resources *res = &hdata->res;
+
+	DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+	/* turn HDMI power on */
+	regulator_bulk_enable(res->regul_count, res->regul_bulk);
+	/* power-on hdmi physical interface */
+	clk_enable(res->hdmiphy);
+	/* turn clocks on */
+	clk_enable(res->hdmi);
+	clk_enable(res->sclk_hdmi);
+
+	hdmiphy_conf_reset(hdata);
+	hdmi_conf_reset(hdata);
+	hdmi_conf_init(hdata);
+
+}
+
+static void hdmi_resource_poweroff(struct hdmi_context *hdata)
+{
+	struct hdmi_resources *res = &hdata->res;
+
+	DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+	/* turn clocks off */
+	clk_disable(res->sclk_hdmi);
+	clk_disable(res->hdmi);
+	/* power-off hdmiphy */
+	clk_disable(res->hdmiphy);
+	/* turn HDMI power off */
+	regulator_bulk_disable(res->regul_count, res->regul_bulk);
+}
+
+static int hdmi_runtime_suspend(struct device *dev)
+{
+	struct exynos_drm_hdmi_context *ctx = get_hdmi_context(dev);
+
+	DRM_DEBUG_KMS("%s\n", __func__);
+
+	hdmi_resource_poweroff((struct hdmi_context *)ctx->ctx);
+
+	return 0;
+}
+
+static int hdmi_runtime_resume(struct device *dev)
+{
+	struct exynos_drm_hdmi_context *ctx = get_hdmi_context(dev);
+
+	DRM_DEBUG_KMS("%s\n", __func__);
+
+	hdmi_resource_poweron((struct hdmi_context *)ctx->ctx);
+
+	return 0;
+}
+
+static const struct dev_pm_ops hdmi_pm_ops = {
+	.runtime_suspend = hdmi_runtime_suspend,
+	.runtime_resume	 = hdmi_runtime_resume,
+};
+
+static struct i2c_client *hdmi_ddc, *hdmi_hdmiphy;
+
+void hdmi_attach_ddc_client(struct i2c_client *ddc)
+{
+	if (ddc)
+		hdmi_ddc = ddc;
+}
+EXPORT_SYMBOL(hdmi_attach_ddc_client);
+
+void hdmi_attach_hdmiphy_client(struct i2c_client *hdmiphy)
+{
+	if (hdmiphy)
+		hdmi_hdmiphy = hdmiphy;
+}
+EXPORT_SYMBOL(hdmi_attach_hdmiphy_client);
+
+static int __devinit hdmi_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct exynos_drm_hdmi_context *drm_hdmi_ctx;
+	struct hdmi_context *hdata;
+	struct exynos_drm_hdmi_pdata *pdata;
+	struct resource *res;
+	int ret;
+
+	DRM_DEBUG_KMS("[%d]\n", __LINE__);
+
+	pdata = pdev->dev.platform_data;
+	if (!pdata) {
+		DRM_ERROR("no platform data specified\n");
+		return -EINVAL;
+	}
+
+	drm_hdmi_ctx = kzalloc(sizeof(*drm_hdmi_ctx), GFP_KERNEL);
+	if (!drm_hdmi_ctx) {
+		DRM_ERROR("failed to allocate common hdmi context.\n");
+		return -ENOMEM;
+	}
+
+	hdata = kzalloc(sizeof(struct hdmi_context), GFP_KERNEL);
+	if (!hdata) {
+		DRM_ERROR("out of memory\n");
+		kfree(drm_hdmi_ctx);
+		return -ENOMEM;
+	}
+
+	drm_hdmi_ctx->ctx = (void *)hdata;
+	hdata->parent_ctx = (void *)drm_hdmi_ctx;
+
+	platform_set_drvdata(pdev, drm_hdmi_ctx);
+
+	hdata->default_win = pdata->default_win;
+	hdata->default_timing = &pdata->timing;
+	hdata->default_bpp = pdata->bpp;
+	hdata->dev = dev;
+
+	ret = hdmi_resources_init(hdata);
+	if (ret) {
+		ret = -EINVAL;
+		goto err_data;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		DRM_ERROR("failed to find registers\n");
+		ret = -ENOENT;
+		goto err_resource;
+	}
+
+	hdata->regs_res = request_mem_region(res->start, resource_size(res),
+					   dev_name(dev));
+	if (!hdata->regs_res) {
+		DRM_ERROR("failed to claim register region\n");
+		ret = -ENOENT;
+		goto err_resource;
+	}
+
+	hdata->regs = ioremap(res->start, resource_size(res));
+	if (!hdata->regs) {
+		DRM_ERROR("failed to map registers\n");
+		ret = -ENXIO;
+		goto err_req_region;
+	}
+
+	/* DDC i2c driver */
+	if (i2c_add_driver(&ddc_driver)) {
+		DRM_ERROR("failed to register ddc i2c driver\n");
+		ret = -ENOENT;
+		goto err_iomap;
+	}
+
+	hdata->ddc_port = hdmi_ddc;
+
+	/* hdmiphy i2c driver */
+	if (i2c_add_driver(&hdmiphy_driver)) {
+		DRM_ERROR("failed to register hdmiphy i2c driver\n");
+		ret = -ENOENT;
+		goto err_ddc;
+	}
+
+	hdata->hdmiphy_port = hdmi_hdmiphy;
+
+	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+	if (res == NULL) {
+		DRM_ERROR("get interrupt resource failed.\n");
+		ret = -ENXIO;
+		goto err_hdmiphy;
+	}
+
+	/* create workqueue and hotplug work */
+	hdata->wq = alloc_workqueue("exynos-drm-hdmi",
+			WQ_UNBOUND | WQ_NON_REENTRANT, 1);
+	if (hdata->wq == NULL) {
+		DRM_ERROR("Failed to create workqueue.\n");
+		ret = -ENOMEM;
+		goto err_hdmiphy;
+	}
+	INIT_WORK(&hdata->hotplug_work, hdmi_hotplug_func);
+
+	/* register hpd interrupt */
+	ret = request_irq(res->start, hdmi_irq_handler, 0, "drm_hdmi",
+				drm_hdmi_ctx);
+	if (ret) {
+		DRM_ERROR("request interrupt failed.\n");
+		goto err_workqueue;
+	}
+	hdata->irq = res->start;
+
+	/* register specific callbacks to common hdmi. */
+	exynos_drm_display_ops_register(&display_ops);
+	exynos_drm_manager_ops_register(&manager_ops);
+
+	hdmi_resource_poweron(hdata);
+
+	return 0;
+
+err_workqueue:
+	destroy_workqueue(hdata->wq);
+err_hdmiphy:
+	i2c_del_driver(&hdmiphy_driver);
+err_ddc:
+	i2c_del_driver(&ddc_driver);
+err_iomap:
+	iounmap(hdata->regs);
+err_req_region:
+	release_resource(hdata->regs_res);
+	kfree(hdata->regs_res);
+err_resource:
+	hdmi_resources_cleanup(hdata);
+err_data:
+	kfree(hdata);
+	kfree(drm_hdmi_ctx);
+	return ret;
+}
+
+static int __devexit hdmi_remove(struct platform_device *pdev)
+{
+	struct exynos_drm_hdmi_context *ctx = platform_get_drvdata(pdev);
+	struct hdmi_context *hdata = (struct hdmi_context *)ctx->ctx;
+
+	DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+	hdmi_resource_poweroff(hdata);
+
+	disable_irq(hdata->irq);
+	free_irq(hdata->irq, hdata);
+
+	cancel_work_sync(&hdata->hotplug_work);
+	destroy_workqueue(hdata->wq);
+
+	hdmi_resources_cleanup(hdata);
+
+	iounmap(hdata->regs);
+
+	release_resource(hdata->regs_res);
+	kfree(hdata->regs_res);
+
+	/* hdmiphy i2c driver */
+	i2c_del_driver(&hdmiphy_driver);
+	/* DDC i2c driver */
+	i2c_del_driver(&ddc_driver);
+
+	kfree(hdata);
+
+	return 0;
+}
+
+struct platform_driver hdmi_driver = {
+	.probe		= hdmi_probe,
+	.remove		= __devexit_p(hdmi_remove),
+	.driver		= {
+		.name	= "exynos4-hdmi",
+		.owner	= THIS_MODULE,
+		.pm = &hdmi_pm_ops,
+	},
+};
+EXPORT_SYMBOL(hdmi_driver);
+
+MODULE_AUTHOR("Seung-Woo Kim, <sw0312.kim@samsung.com>");
+MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
+MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
+MODULE_DESCRIPTION("Samsung DRM HDMI core Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.h b/drivers/gpu/drm/exynos/exynos_hdmi.h
new file mode 100644
index 000000000000..31d6cf84c1aa
--- /dev/null
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.h
@@ -0,0 +1,87 @@
+/*
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * Authors:
+ *	Inki Dae <inki.dae@samsung.com>
+ *	Seung-Woo Kim <sw0312.kim@samsung.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef _EXYNOS_HDMI_H_
+#define _EXYNOS_HDMI_H_
+
+struct hdmi_conf {
+	int width;
+	int height;
+	int vrefresh;
+	bool interlace;
+	const u8 *hdmiphy_data;
+	const struct hdmi_preset_conf *conf;
+};
+
+struct hdmi_resources {
+	struct clk *hdmi;
+	struct clk *sclk_hdmi;
+	struct clk *sclk_pixel;
+	struct clk *sclk_hdmiphy;
+	struct clk *hdmiphy;
+	struct regulator_bulk_data *regul_bulk;
+	int regul_count;
+};
+
+struct hdmi_context {
+	struct device			*dev;
+	struct drm_device		*drm_dev;
+	struct fb_videomode		*default_timing;
+	unsigned int			default_win;
+	unsigned int			default_bpp;
+	bool				hpd_handle;
+	bool				enabled;
+
+	struct resource			*regs_res;
+	/** base address of HDMI registers */
+	void __iomem *regs;
+	/** HDMI hotplug interrupt */
+	unsigned int irq;
+	/** workqueue for delayed work */
+	struct workqueue_struct *wq;
+	/** hotplug handling work */
+	struct work_struct hotplug_work;
+
+	struct i2c_client *ddc_port;
+	struct i2c_client *hdmiphy_port;
+
+	/** current hdmiphy conf index */
+	int cur_conf;
+	/** other resources */
+	struct hdmi_resources res;
+
+	void *parent_ctx;
+};
+
+
+void hdmi_attach_ddc_client(struct i2c_client *ddc);
+void hdmi_attach_hdmiphy_client(struct i2c_client *hdmiphy);
+
+extern struct i2c_driver hdmiphy_driver;
+extern struct i2c_driver ddc_driver;
+
+#endif
diff --git a/drivers/gpu/drm/exynos/exynos_hdmiphy.c b/drivers/gpu/drm/exynos/exynos_hdmiphy.c
new file mode 100644
index 000000000000..9fe2995ab9f9
--- /dev/null
+++ b/drivers/gpu/drm/exynos/exynos_hdmiphy.c
@@ -0,0 +1,58 @@
+/*
+ * Copyright (C) 2011 Samsung Electronics Co.Ltd
+ * Authors:
+ *	Seung-Woo Kim <sw0312.kim@samsung.com>
+ *	Inki Dae <inki.dae@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include "drmP.h"
+
+#include <linux/kernel.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+
+#include "exynos_drm_drv.h"
+#include "exynos_hdmi.h"
+
+
+static int hdmiphy_probe(struct i2c_client *client,
+	const struct i2c_device_id *id)
+{
+	hdmi_attach_hdmiphy_client(client);
+
+	dev_info(&client->adapter->dev, "attached s5p_hdmiphy "
+		"into i2c adapter successfully\n");
+
+	return 0;
+}
+
+static int hdmiphy_remove(struct i2c_client *client)
+{
+	dev_info(&client->adapter->dev, "detached s5p_hdmiphy "
+		"from i2c adapter successfully\n");
+
+	return 0;
+}
+
+static const struct i2c_device_id hdmiphy_id[] = {
+	{ "s5p_hdmiphy", 0 },
+	{ },
+};
+
+struct i2c_driver hdmiphy_driver = {
+	.driver = {
+		.name	= "s5p-hdmiphy",
+		.owner	= THIS_MODULE,
+	},
+	.id_table = hdmiphy_id,
+	.probe		= hdmiphy_probe,
+	.remove		= __devexit_p(hdmiphy_remove),
+	.command		= NULL,
+};
+EXPORT_SYMBOL(hdmiphy_driver);
diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c
new file mode 100644
index 000000000000..ac24cff39775
--- /dev/null
+++ b/drivers/gpu/drm/exynos/exynos_mixer.c
@@ -0,0 +1,1070 @@
+/*
+ * Copyright (C) 2011 Samsung Electronics Co.Ltd
+ * Authors:
+ * Seung-Woo Kim <sw0312.kim@samsung.com>
+ *	Inki Dae <inki.dae@samsung.com>
+ *	Joonyoung Shim <jy0922.shim@samsung.com>
+ *
+ * Based on drivers/media/video/s5p-tv/mixer_reg.c
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include "drmP.h"
+
+#include "regs-mixer.h"
+#include "regs-vp.h"
+
+#include <linux/kernel.h>
+#include <linux/spinlock.h>
+#include <linux/wait.h>
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/delay.h>
+#include <linux/pm_runtime.h>
+#include <linux/clk.h>
+#include <linux/regulator/consumer.h>
+
+#include <drm/exynos_drm.h>
+
+#include "exynos_drm_drv.h"
+#include "exynos_drm_hdmi.h"
+#include "exynos_hdmi.h"
+#include "exynos_mixer.h"
+
+#define get_mixer_context(dev)	platform_get_drvdata(to_platform_device(dev))
+
+static const u8 filter_y_horiz_tap8[] = {
+	0,	-1,	-1,	-1,	-1,	-1,	-1,	-1,
+	-1,	-1,	-1,	-1,	-1,	0,	0,	0,
+	0,	2,	4,	5,	6,	6,	6,	6,
+	6,	5,	5,	4,	3,	2,	1,	1,
+	0,	-6,	-12,	-16,	-18,	-20,	-21,	-20,
+	-20,	-18,	-16,	-13,	-10,	-8,	-5,	-2,
+	127,	126,	125,	121,	114,	107,	99,	89,
+	79,	68,	57,	46,	35,	25,	16,	8,
+};
+
+static const u8 filter_y_vert_tap4[] = {
+	0,	-3,	-6,	-8,	-8,	-8,	-8,	-7,
+	-6,	-5,	-4,	-3,	-2,	-1,	-1,	0,
+	127,	126,	124,	118,	111,	102,	92,	81,
+	70,	59,	48,	37,	27,	19,	11,	5,
+	0,	5,	11,	19,	27,	37,	48,	59,
+	70,	81,	92,	102,	111,	118,	124,	126,
+	0,	0,	-1,	-1,	-2,	-3,	-4,	-5,
+	-6,	-7,	-8,	-8,	-8,	-8,	-6,	-3,
+};
+
+static const u8 filter_cr_horiz_tap4[] = {
+	0,	-3,	-6,	-8,	-8,	-8,	-8,	-7,
+	-6,	-5,	-4,	-3,	-2,	-1,	-1,	0,
+	127,	126,	124,	118,	111,	102,	92,	81,
+	70,	59,	48,	37,	27,	19,	11,	5,
+};
+
+static inline u32 vp_reg_read(struct mixer_resources *res, u32 reg_id)
+{
+	return readl(res->vp_regs + reg_id);
+}
+
+static inline void vp_reg_write(struct mixer_resources *res, u32 reg_id,
+				 u32 val)
+{
+	writel(val, res->vp_regs + reg_id);
+}
+
+static inline void vp_reg_writemask(struct mixer_resources *res, u32 reg_id,
+				 u32 val, u32 mask)
+{
+	u32 old = vp_reg_read(res, reg_id);
+
+	val = (val & mask) | (old & ~mask);
+	writel(val, res->vp_regs + reg_id);
+}
+
+static inline u32 mixer_reg_read(struct mixer_resources *res, u32 reg_id)
+{
+	return readl(res->mixer_regs + reg_id);
+}
+
+static inline void mixer_reg_write(struct mixer_resources *res, u32 reg_id,
+				 u32 val)
+{
+	writel(val, res->mixer_regs + reg_id);
+}
+
+static inline void mixer_reg_writemask(struct mixer_resources *res,
+				 u32 reg_id, u32 val, u32 mask)
+{
+	u32 old = mixer_reg_read(res, reg_id);
+
+	val = (val & mask) | (old & ~mask);
+	writel(val, res->mixer_regs + reg_id);
+}
+
+static void mixer_regs_dump(struct mixer_context *ctx)
+{
+#define DUMPREG(reg_id) \
+do { \
+	DRM_DEBUG_KMS(#reg_id " = %08x\n", \
+		(u32)readl(ctx->mixer_res.mixer_regs + reg_id)); \
+} while (0)
+
+	DUMPREG(MXR_STATUS);
+	DUMPREG(MXR_CFG);
+	DUMPREG(MXR_INT_EN);
+	DUMPREG(MXR_INT_STATUS);
+
+	DUMPREG(MXR_LAYER_CFG);
+	DUMPREG(MXR_VIDEO_CFG);
+
+	DUMPREG(MXR_GRAPHIC0_CFG);
+	DUMPREG(MXR_GRAPHIC0_BASE);
+	DUMPREG(MXR_GRAPHIC0_SPAN);
+	DUMPREG(MXR_GRAPHIC0_WH);
+	DUMPREG(MXR_GRAPHIC0_SXY);
+	DUMPREG(MXR_GRAPHIC0_DXY);
+
+	DUMPREG(MXR_GRAPHIC1_CFG);
+	DUMPREG(MXR_GRAPHIC1_BASE);
+	DUMPREG(MXR_GRAPHIC1_SPAN);
+	DUMPREG(MXR_GRAPHIC1_WH);
+	DUMPREG(MXR_GRAPHIC1_SXY);
+	DUMPREG(MXR_GRAPHIC1_DXY);
+#undef DUMPREG
+}
+
+static void vp_regs_dump(struct mixer_context *ctx)
+{
+#define DUMPREG(reg_id) \
+do { \
+	DRM_DEBUG_KMS(#reg_id " = %08x\n", \
+		(u32) readl(ctx->mixer_res.vp_regs + reg_id)); \
+} while (0)
+
+	DUMPREG(VP_ENABLE);
+	DUMPREG(VP_SRESET);
+	DUMPREG(VP_SHADOW_UPDATE);
+	DUMPREG(VP_FIELD_ID);
+	DUMPREG(VP_MODE);
+	DUMPREG(VP_IMG_SIZE_Y);
+	DUMPREG(VP_IMG_SIZE_C);
+	DUMPREG(VP_PER_RATE_CTRL);
+	DUMPREG(VP_TOP_Y_PTR);
+	DUMPREG(VP_BOT_Y_PTR);
+	DUMPREG(VP_TOP_C_PTR);
+	DUMPREG(VP_BOT_C_PTR);
+	DUMPREG(VP_ENDIAN_MODE);
+	DUMPREG(VP_SRC_H_POSITION);
+	DUMPREG(VP_SRC_V_POSITION);
+	DUMPREG(VP_SRC_WIDTH);
+	DUMPREG(VP_SRC_HEIGHT);
+	DUMPREG(VP_DST_H_POSITION);
+	DUMPREG(VP_DST_V_POSITION);
+	DUMPREG(VP_DST_WIDTH);
+	DUMPREG(VP_DST_HEIGHT);
+	DUMPREG(VP_H_RATIO);
+	DUMPREG(VP_V_RATIO);
+
+#undef DUMPREG
+}
+
+static inline void vp_filter_set(struct mixer_resources *res,
+		int reg_id, const u8 *data, unsigned int size)
+{
+	/* assure 4-byte align */
+	BUG_ON(size & 3);
+	for (; size; size -= 4, reg_id += 4, data += 4) {
+		u32 val = (data[0] << 24) |  (data[1] << 16) |
+			(data[2] << 8) | data[3];
+		vp_reg_write(res, reg_id, val);
+	}
+}
+
+static void vp_default_filter(struct mixer_resources *res)
+{
+	vp_filter_set(res, VP_POLY8_Y0_LL,
+		filter_y_horiz_tap8, sizeof filter_y_horiz_tap8);
+	vp_filter_set(res, VP_POLY4_Y0_LL,
+		filter_y_vert_tap4, sizeof filter_y_vert_tap4);
+	vp_filter_set(res, VP_POLY4_C0_LL,
+		filter_cr_horiz_tap4, sizeof filter_cr_horiz_tap4);
+}
+
+static void mixer_vsync_set_update(struct mixer_context *ctx, bool enable)
+{
+	struct mixer_resources *res = &ctx->mixer_res;
+
+	/* block update on vsync */
+	mixer_reg_writemask(res, MXR_STATUS, enable ?
+			MXR_STATUS_SYNC_ENABLE : 0, MXR_STATUS_SYNC_ENABLE);
+
+	vp_reg_write(res, VP_SHADOW_UPDATE, enable ?
+			VP_SHADOW_UPDATE_ENABLE : 0);
+}
+
+static void mixer_cfg_scan(struct mixer_context *ctx, unsigned int height)
+{
+	struct mixer_resources *res = &ctx->mixer_res;
+	u32 val;
+
+	/* choosing between interlace and progressive mode */
+	val = (ctx->interlace ? MXR_CFG_SCAN_INTERLACE :
+				MXR_CFG_SCAN_PROGRASSIVE);
+
+	/* choosing between porper HD and SD mode */
+	if (height == 480)
+		val |= MXR_CFG_SCAN_NTSC | MXR_CFG_SCAN_SD;
+	else if (height == 576)
+		val |= MXR_CFG_SCAN_PAL | MXR_CFG_SCAN_SD;
+	else if (height == 720)
+		val |= MXR_CFG_SCAN_HD_720 | MXR_CFG_SCAN_HD;
+	else if (height == 1080)
+		val |= MXR_CFG_SCAN_HD_1080 | MXR_CFG_SCAN_HD;
+	else
+		val |= MXR_CFG_SCAN_HD_720 | MXR_CFG_SCAN_HD;
+
+	mixer_reg_writemask(res, MXR_CFG, val, MXR_CFG_SCAN_MASK);
+}
+
+static void mixer_cfg_rgb_fmt(struct mixer_context *ctx, unsigned int height)
+{
+	struct mixer_resources *res = &ctx->mixer_res;
+	u32 val;
+
+	if (height == 480) {
+		val = MXR_CFG_RGB601_0_255;
+	} else if (height == 576) {
+		val = MXR_CFG_RGB601_0_255;
+	} else if (height == 720) {
+		val = MXR_CFG_RGB709_16_235;
+		mixer_reg_write(res, MXR_CM_COEFF_Y,
+				(1 << 30) | (94 << 20) | (314 << 10) |
+				(32 << 0));
+		mixer_reg_write(res, MXR_CM_COEFF_CB,
+				(972 << 20) | (851 << 10) | (225 << 0));
+		mixer_reg_write(res, MXR_CM_COEFF_CR,
+				(225 << 20) | (820 << 10) | (1004 << 0));
+	} else if (height == 1080) {
+		val = MXR_CFG_RGB709_16_235;
+		mixer_reg_write(res, MXR_CM_COEFF_Y,
+				(1 << 30) | (94 << 20) | (314 << 10) |
+				(32 << 0));
+		mixer_reg_write(res, MXR_CM_COEFF_CB,
+				(972 << 20) | (851 << 10) | (225 << 0));
+		mixer_reg_write(res, MXR_CM_COEFF_CR,
+				(225 << 20) | (820 << 10) | (1004 << 0));
+	} else {
+		val = MXR_CFG_RGB709_16_235;
+		mixer_reg_write(res, MXR_CM_COEFF_Y,
+				(1 << 30) | (94 << 20) | (314 << 10) |
+				(32 << 0));
+		mixer_reg_write(res, MXR_CM_COEFF_CB,
+				(972 << 20) | (851 << 10) | (225 << 0));
+		mixer_reg_write(res, MXR_CM_COEFF_CR,
+				(225 << 20) | (820 << 10) | (1004 << 0));
+	}
+
+	mixer_reg_writemask(res, MXR_CFG, val, MXR_CFG_RGB_FMT_MASK);
+}
+
+static void mixer_cfg_layer(struct mixer_context *ctx, int win, bool enable)
+{
+	struct mixer_resources *res = &ctx->mixer_res;
+	u32 val = enable ? ~0 : 0;
+
+	switch (win) {
+	case 0:
+		mixer_reg_writemask(res, MXR_CFG, val, MXR_CFG_GRP0_ENABLE);
+		break;
+	case 1:
+		mixer_reg_writemask(res, MXR_CFG, val, MXR_CFG_GRP1_ENABLE);
+		break;
+	case 2:
+		vp_reg_writemask(res, VP_ENABLE, val, VP_ENABLE_ON);
+		mixer_reg_writemask(res, MXR_CFG, val, MXR_CFG_VP_ENABLE);
+		break;
+	}
+}
+
+static void mixer_run(struct mixer_context *ctx)
+{
+	struct mixer_resources *res = &ctx->mixer_res;
+
+	mixer_reg_writemask(res, MXR_STATUS, ~0, MXR_STATUS_REG_RUN);
+
+	mixer_regs_dump(ctx);
+}
+
+static void vp_video_buffer(struct mixer_context *ctx, int win)
+{
+	struct mixer_resources *res = &ctx->mixer_res;
+	unsigned long flags;
+	struct hdmi_win_data *win_data;
+	unsigned int full_width, full_height, width, height;
+	unsigned int x_ratio, y_ratio;
+	unsigned int src_x_offset, src_y_offset, dst_x_offset, dst_y_offset;
+	unsigned int mode_width, mode_height;
+	unsigned int buf_num;
+	dma_addr_t luma_addr[2], chroma_addr[2];
+	bool tiled_mode = false;
+	bool crcb_mode = false;
+	u32 val;
+
+	win_data = &ctx->win_data[win];
+
+	switch (win_data->pixel_format) {
+	case DRM_FORMAT_NV12MT:
+		tiled_mode = true;
+	case DRM_FORMAT_NV12M:
+		crcb_mode = false;
+		buf_num = 2;
+		break;
+	/* TODO: single buffer format NV12, NV21 */
+	default:
+		/* ignore pixel format at disable time */
+		if (!win_data->dma_addr)
+			break;
+
+		DRM_ERROR("pixel format for vp is wrong [%d].\n",
+				win_data->pixel_format);
+		return;
+	}
+
+	full_width = win_data->fb_width;
+	full_height = win_data->fb_height;
+	width = win_data->crtc_width;
+	height = win_data->crtc_height;
+	mode_width = win_data->mode_width;
+	mode_height = win_data->mode_height;
+
+	/* scaling feature: (src << 16) / dst */
+	x_ratio = (width << 16) / width;
+	y_ratio = (height << 16) / height;
+
+	src_x_offset = win_data->fb_x;
+	src_y_offset = win_data->fb_y;
+	dst_x_offset = win_data->crtc_x;
+	dst_y_offset = win_data->crtc_y;
+
+	if (buf_num == 2) {
+		luma_addr[0] = win_data->dma_addr;
+		chroma_addr[0] = win_data->chroma_dma_addr;
+	} else {
+		luma_addr[0] = win_data->dma_addr;
+		chroma_addr[0] = win_data->dma_addr
+			+ (full_width * full_height);
+	}
+
+	if (win_data->scan_flags & DRM_MODE_FLAG_INTERLACE) {
+		ctx->interlace = true;
+		if (tiled_mode) {
+			luma_addr[1] = luma_addr[0] + 0x40;
+			chroma_addr[1] = chroma_addr[0] + 0x40;
+		} else {
+			luma_addr[1] = luma_addr[0] + full_width;
+			chroma_addr[1] = chroma_addr[0] + full_width;
+		}
+	} else {
+		ctx->interlace = false;
+		luma_addr[1] = 0;
+		chroma_addr[1] = 0;
+	}
+
+	spin_lock_irqsave(&res->reg_slock, flags);
+	mixer_vsync_set_update(ctx, false);
+
+	/* interlace or progressive scan mode */
+	val = (ctx->interlace ? ~0 : 0);
+	vp_reg_writemask(res, VP_MODE, val, VP_MODE_LINE_SKIP);
+
+	/* setup format */
+	val = (crcb_mode ? VP_MODE_NV21 : VP_MODE_NV12);
+	val |= (tiled_mode ? VP_MODE_MEM_TILED : VP_MODE_MEM_LINEAR);
+	vp_reg_writemask(res, VP_MODE, val, VP_MODE_FMT_MASK);
+
+	/* setting size of input image */
+	vp_reg_write(res, VP_IMG_SIZE_Y, VP_IMG_HSIZE(full_width) |
+		VP_IMG_VSIZE(full_height));
+	/* chroma height has to reduced by 2 to avoid chroma distorions */
+	vp_reg_write(res, VP_IMG_SIZE_C, VP_IMG_HSIZE(full_width) |
+		VP_IMG_VSIZE(full_height / 2));
+
+	vp_reg_write(res, VP_SRC_WIDTH, width);
+	vp_reg_write(res, VP_SRC_HEIGHT, height);
+	vp_reg_write(res, VP_SRC_H_POSITION,
+			VP_SRC_H_POSITION_VAL(src_x_offset));
+	vp_reg_write(res, VP_SRC_V_POSITION, src_y_offset);
+
+	vp_reg_write(res, VP_DST_WIDTH, width);
+	vp_reg_write(res, VP_DST_H_POSITION, dst_x_offset);
+	if (ctx->interlace) {
+		vp_reg_write(res, VP_DST_HEIGHT, height / 2);
+		vp_reg_write(res, VP_DST_V_POSITION, dst_y_offset / 2);
+	} else {
+		vp_reg_write(res, VP_DST_HEIGHT, height);
+		vp_reg_write(res, VP_DST_V_POSITION, dst_y_offset);
+	}
+
+	vp_reg_write(res, VP_H_RATIO, x_ratio);
+	vp_reg_write(res, VP_V_RATIO, y_ratio);
+
+	vp_reg_write(res, VP_ENDIAN_MODE, VP_ENDIAN_MODE_LITTLE);
+
+	/* set buffer address to vp */
+	vp_reg_write(res, VP_TOP_Y_PTR, luma_addr[0]);
+	vp_reg_write(res, VP_BOT_Y_PTR, luma_addr[1]);
+	vp_reg_write(res, VP_TOP_C_PTR, chroma_addr[0]);
+	vp_reg_write(res, VP_BOT_C_PTR, chroma_addr[1]);
+
+	mixer_cfg_scan(ctx, mode_height);
+	mixer_cfg_rgb_fmt(ctx, mode_height);
+	mixer_cfg_layer(ctx, win, true);
+	mixer_run(ctx);
+
+	mixer_vsync_set_update(ctx, true);
+	spin_unlock_irqrestore(&res->reg_slock, flags);
+
+	vp_regs_dump(ctx);
+}
+
+static void mixer_graph_buffer(struct mixer_context *ctx, int win)
+{
+	struct mixer_resources *res = &ctx->mixer_res;
+	unsigned long flags;
+	struct hdmi_win_data *win_data;
+	unsigned int full_width, width, height;
+	unsigned int x_ratio, y_ratio;
+	unsigned int src_x_offset, src_y_offset, dst_x_offset, dst_y_offset;
+	unsigned int mode_width, mode_height;
+	dma_addr_t dma_addr;
+	unsigned int fmt;
+	u32 val;
+
+	win_data = &ctx->win_data[win];
+
+	#define RGB565 4
+	#define ARGB1555 5
+	#define ARGB4444 6
+	#define ARGB8888 7
+
+	switch (win_data->bpp) {
+	case 16:
+		fmt = ARGB4444;
+		break;
+	case 32:
+		fmt = ARGB8888;
+		break;
+	default:
+		fmt = ARGB8888;
+	}
+
+	dma_addr = win_data->dma_addr;
+	full_width = win_data->fb_width;
+	width = win_data->crtc_width;
+	height = win_data->crtc_height;
+	mode_width = win_data->mode_width;
+	mode_height = win_data->mode_height;
+
+	/* 2x scaling feature */
+	x_ratio = 0;
+	y_ratio = 0;
+
+	src_x_offset = win_data->fb_x;
+	src_y_offset = win_data->fb_y;
+	dst_x_offset = win_data->crtc_x;
+	dst_y_offset = win_data->crtc_y;
+
+	/* converting dma address base and source offset */
+	dma_addr = dma_addr
+		+ (src_x_offset * win_data->bpp >> 3)
+		+ (src_y_offset * full_width * win_data->bpp >> 3);
+	src_x_offset = 0;
+	src_y_offset = 0;
+
+	if (win_data->scan_flags & DRM_MODE_FLAG_INTERLACE)
+		ctx->interlace = true;
+	else
+		ctx->interlace = false;
+
+	spin_lock_irqsave(&res->reg_slock, flags);
+	mixer_vsync_set_update(ctx, false);
+
+	/* setup format */
+	mixer_reg_writemask(res, MXR_GRAPHIC_CFG(win),
+		MXR_GRP_CFG_FORMAT_VAL(fmt), MXR_GRP_CFG_FORMAT_MASK);
+
+	/* setup geometry */
+	mixer_reg_write(res, MXR_GRAPHIC_SPAN(win), full_width);
+
+	val  = MXR_GRP_WH_WIDTH(width);
+	val |= MXR_GRP_WH_HEIGHT(height);
+	val |= MXR_GRP_WH_H_SCALE(x_ratio);
+	val |= MXR_GRP_WH_V_SCALE(y_ratio);
+	mixer_reg_write(res, MXR_GRAPHIC_WH(win), val);
+
+	/* setup offsets in source image */
+	val  = MXR_GRP_SXY_SX(src_x_offset);
+	val |= MXR_GRP_SXY_SY(src_y_offset);
+	mixer_reg_write(res, MXR_GRAPHIC_SXY(win), val);
+
+	/* setup offsets in display image */
+	val  = MXR_GRP_DXY_DX(dst_x_offset);
+	val |= MXR_GRP_DXY_DY(dst_y_offset);
+	mixer_reg_write(res, MXR_GRAPHIC_DXY(win), val);
+
+	/* set buffer address to mixer */
+	mixer_reg_write(res, MXR_GRAPHIC_BASE(win), dma_addr);
+
+	mixer_cfg_scan(ctx, mode_height);
+	mixer_cfg_rgb_fmt(ctx, mode_height);
+	mixer_cfg_layer(ctx, win, true);
+	mixer_run(ctx);
+
+	mixer_vsync_set_update(ctx, true);
+	spin_unlock_irqrestore(&res->reg_slock, flags);
+}
+
+static void vp_win_reset(struct mixer_context *ctx)
+{
+	struct mixer_resources *res = &ctx->mixer_res;
+	int tries = 100;
+
+	vp_reg_write(res, VP_SRESET, VP_SRESET_PROCESSING);
+	for (tries = 100; tries; --tries) {
+		/* waiting until VP_SRESET_PROCESSING is 0 */
+		if (~vp_reg_read(res, VP_SRESET) & VP_SRESET_PROCESSING)
+			break;
+		mdelay(10);
+	}
+	WARN(tries == 0, "failed to reset Video Processor\n");
+}
+
+static int mixer_enable_vblank(void *ctx, int pipe)
+{
+	struct mixer_context *mixer_ctx = ctx;
+	struct mixer_resources *res = &mixer_ctx->mixer_res;
+
+	DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+	mixer_ctx->pipe = pipe;
+
+	/* enable vsync interrupt */
+	mixer_reg_writemask(res, MXR_INT_EN, MXR_INT_EN_VSYNC,
+			MXR_INT_EN_VSYNC);
+
+	return 0;
+}
+
+static void mixer_disable_vblank(void *ctx)
+{
+	struct mixer_context *mixer_ctx = ctx;
+	struct mixer_resources *res = &mixer_ctx->mixer_res;
+
+	DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+	/* disable vsync interrupt */
+	mixer_reg_writemask(res, MXR_INT_EN, 0, MXR_INT_EN_VSYNC);
+}
+
+static void mixer_win_mode_set(void *ctx,
+			      struct exynos_drm_overlay *overlay)
+{
+	struct mixer_context *mixer_ctx = ctx;
+	struct hdmi_win_data *win_data;
+	int win;
+
+	DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+	if (!overlay) {
+		DRM_ERROR("overlay is NULL\n");
+		return;
+	}
+
+	DRM_DEBUG_KMS("set [%d]x[%d] at (%d,%d) to [%d]x[%d] at (%d,%d)\n",
+				 overlay->fb_width, overlay->fb_height,
+				 overlay->fb_x, overlay->fb_y,
+				 overlay->crtc_width, overlay->crtc_height,
+				 overlay->crtc_x, overlay->crtc_y);
+
+	win = overlay->zpos;
+	if (win == DEFAULT_ZPOS)
+		win = mixer_ctx->default_win;
+
+	if (win < 0 || win > HDMI_OVERLAY_NUMBER) {
+		DRM_ERROR("overlay plane[%d] is wrong\n", win);
+		return;
+	}
+
+	win_data = &mixer_ctx->win_data[win];
+
+	win_data->dma_addr = overlay->dma_addr[0];
+	win_data->vaddr = overlay->vaddr[0];
+	win_data->chroma_dma_addr = overlay->dma_addr[1];
+	win_data->chroma_vaddr = overlay->vaddr[1];
+	win_data->pixel_format = overlay->pixel_format;
+	win_data->bpp = overlay->bpp;
+
+	win_data->crtc_x = overlay->crtc_x;
+	win_data->crtc_y = overlay->crtc_y;
+	win_data->crtc_width = overlay->crtc_width;
+	win_data->crtc_height = overlay->crtc_height;
+
+	win_data->fb_x = overlay->fb_x;
+	win_data->fb_y = overlay->fb_y;
+	win_data->fb_width = overlay->fb_width;
+	win_data->fb_height = overlay->fb_height;
+
+	win_data->mode_width = overlay->mode_width;
+	win_data->mode_height = overlay->mode_height;
+
+	win_data->scan_flags = overlay->scan_flag;
+}
+
+static void mixer_win_commit(void *ctx, int zpos)
+{
+	struct mixer_context *mixer_ctx = ctx;
+	int win = zpos;
+
+	DRM_DEBUG_KMS("[%d] %s, win: %d\n", __LINE__, __func__, win);
+
+	if (win == DEFAULT_ZPOS)
+		win = mixer_ctx->default_win;
+
+	if (win < 0 || win > HDMI_OVERLAY_NUMBER) {
+		DRM_ERROR("overlay plane[%d] is wrong\n", win);
+		return;
+	}
+
+	if (win > 1)
+		vp_video_buffer(mixer_ctx, win);
+	else
+		mixer_graph_buffer(mixer_ctx, win);
+}
+
+static void mixer_win_disable(void *ctx, int zpos)
+{
+	struct mixer_context *mixer_ctx = ctx;
+	struct mixer_resources *res = &mixer_ctx->mixer_res;
+	unsigned long flags;
+	int win = zpos;
+
+	DRM_DEBUG_KMS("[%d] %s, win: %d\n", __LINE__, __func__, win);
+
+	if (win == DEFAULT_ZPOS)
+		win = mixer_ctx->default_win;
+
+	if (win < 0 || win > HDMI_OVERLAY_NUMBER) {
+		DRM_ERROR("overlay plane[%d] is wrong\n", win);
+		return;
+	}
+
+	spin_lock_irqsave(&res->reg_slock, flags);
+	mixer_vsync_set_update(mixer_ctx, false);
+
+	mixer_cfg_layer(mixer_ctx, win, false);
+
+	mixer_vsync_set_update(mixer_ctx, true);
+	spin_unlock_irqrestore(&res->reg_slock, flags);
+}
+
+static struct exynos_hdmi_overlay_ops overlay_ops = {
+	.enable_vblank		= mixer_enable_vblank,
+	.disable_vblank		= mixer_disable_vblank,
+	.win_mode_set		= mixer_win_mode_set,
+	.win_commit		= mixer_win_commit,
+	.win_disable		= mixer_win_disable,
+};
+
+/* for pageflip event */
+static void mixer_finish_pageflip(struct drm_device *drm_dev, int crtc)
+{
+	struct exynos_drm_private *dev_priv = drm_dev->dev_private;
+	struct drm_pending_vblank_event *e, *t;
+	struct timeval now;
+	unsigned long flags;
+	bool is_checked = false;
+
+	spin_lock_irqsave(&drm_dev->event_lock, flags);
+
+	list_for_each_entry_safe(e, t, &dev_priv->pageflip_event_list,
+			base.link) {
+		/* if event's pipe isn't same as crtc then ignore it. */
+		if (crtc != e->pipe)
+			continue;
+
+		is_checked = true;
+		do_gettimeofday(&now);
+		e->event.sequence = 0;
+		e->event.tv_sec = now.tv_sec;
+		e->event.tv_usec = now.tv_usec;
+
+		list_move_tail(&e->base.link, &e->base.file_priv->event_list);
+		wake_up_interruptible(&e->base.file_priv->event_wait);
+	}
+
+	if (is_checked)
+		drm_vblank_put(drm_dev, crtc);
+
+	spin_unlock_irqrestore(&drm_dev->event_lock, flags);
+}
+
+static irqreturn_t mixer_irq_handler(int irq, void *arg)
+{
+	struct exynos_drm_hdmi_context *drm_hdmi_ctx = arg;
+	struct mixer_context *ctx =
+			(struct mixer_context *)drm_hdmi_ctx->ctx;
+	struct mixer_resources *res = &ctx->mixer_res;
+	u32 val, val_base;
+
+	spin_lock(&res->reg_slock);
+
+	/* read interrupt status for handling and clearing flags for VSYNC */
+	val = mixer_reg_read(res, MXR_INT_STATUS);
+
+	/* handling VSYNC */
+	if (val & MXR_INT_STATUS_VSYNC) {
+		/* interlace scan need to check shadow register */
+		if (ctx->interlace) {
+			val_base = mixer_reg_read(res, MXR_GRAPHIC_BASE_S(0));
+			if (ctx->win_data[0].dma_addr != val_base)
+				goto out;
+
+			val_base = mixer_reg_read(res, MXR_GRAPHIC_BASE_S(1));
+			if (ctx->win_data[1].dma_addr != val_base)
+				goto out;
+		}
+
+		drm_handle_vblank(drm_hdmi_ctx->drm_dev, ctx->pipe);
+		mixer_finish_pageflip(drm_hdmi_ctx->drm_dev, ctx->pipe);
+	}
+
+out:
+	/* clear interrupts */
+	if (~val & MXR_INT_EN_VSYNC) {
+		/* vsync interrupt use different bit for read and clear */
+		val &= ~MXR_INT_EN_VSYNC;
+		val |= MXR_INT_CLEAR_VSYNC;
+	}
+	mixer_reg_write(res, MXR_INT_STATUS, val);
+
+	spin_unlock(&res->reg_slock);
+
+	return IRQ_HANDLED;
+}
+
+static void mixer_win_reset(struct mixer_context *ctx)
+{
+	struct mixer_resources *res = &ctx->mixer_res;
+	unsigned long flags;
+	u32 val; /* value stored to register */
+
+	spin_lock_irqsave(&res->reg_slock, flags);
+	mixer_vsync_set_update(ctx, false);
+
+	mixer_reg_writemask(res, MXR_CFG, MXR_CFG_DST_HDMI, MXR_CFG_DST_MASK);
+
+	/* set output in RGB888 mode */
+	mixer_reg_writemask(res, MXR_CFG, MXR_CFG_OUT_RGB888, MXR_CFG_OUT_MASK);
+
+	/* 16 beat burst in DMA */
+	mixer_reg_writemask(res, MXR_STATUS, MXR_STATUS_16_BURST,
+		MXR_STATUS_BURST_MASK);
+
+	/* setting default layer priority: layer1 > video > layer0
+	 * because typical usage scenario would be
+	 * layer0 - framebuffer
+	 * video - video overlay
+	 * layer1 - OSD
+	 */
+	val  = MXR_LAYER_CFG_GRP0_VAL(1);
+	val |= MXR_LAYER_CFG_VP_VAL(2);
+	val |= MXR_LAYER_CFG_GRP1_VAL(3);
+	mixer_reg_write(res, MXR_LAYER_CFG, val);
+
+	/* setting background color */
+	mixer_reg_write(res, MXR_BG_COLOR0, 0x008080);
+	mixer_reg_write(res, MXR_BG_COLOR1, 0x008080);
+	mixer_reg_write(res, MXR_BG_COLOR2, 0x008080);
+
+	/* setting graphical layers */
+
+	val  = MXR_GRP_CFG_COLOR_KEY_DISABLE; /* no blank key */
+	val |= MXR_GRP_CFG_WIN_BLEND_EN;
+	val |= MXR_GRP_CFG_ALPHA_VAL(0xff); /* non-transparent alpha */
+
+	/* the same configuration for both layers */
+	mixer_reg_write(res, MXR_GRAPHIC_CFG(0), val);
+
+	val |= MXR_GRP_CFG_BLEND_PRE_MUL;
+	val |= MXR_GRP_CFG_PIXEL_BLEND_EN;
+	mixer_reg_write(res, MXR_GRAPHIC_CFG(1), val);
+
+	/* configuration of Video Processor Registers */
+	vp_win_reset(ctx);
+	vp_default_filter(res);
+
+	/* disable all layers */
+	mixer_reg_writemask(res, MXR_CFG, 0, MXR_CFG_GRP0_ENABLE);
+	mixer_reg_writemask(res, MXR_CFG, 0, MXR_CFG_GRP1_ENABLE);
+	mixer_reg_writemask(res, MXR_CFG, 0, MXR_CFG_VP_ENABLE);
+
+	mixer_vsync_set_update(ctx, true);
+	spin_unlock_irqrestore(&res->reg_slock, flags);
+}
+
+static void mixer_resource_poweron(struct mixer_context *ctx)
+{
+	struct mixer_resources *res = &ctx->mixer_res;
+
+	DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+	clk_enable(res->mixer);
+	clk_enable(res->vp);
+	clk_enable(res->sclk_mixer);
+
+	mixer_win_reset(ctx);
+}
+
+static void mixer_resource_poweroff(struct mixer_context *ctx)
+{
+	struct mixer_resources *res = &ctx->mixer_res;
+
+	DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
+
+	clk_disable(res->mixer);
+	clk_disable(res->vp);
+	clk_disable(res->sclk_mixer);
+}
+
+static int mixer_runtime_resume(struct device *dev)
+{
+	struct exynos_drm_hdmi_context *ctx = get_mixer_context(dev);
+
+	DRM_DEBUG_KMS("resume - start\n");
+
+	mixer_resource_poweron((struct mixer_context *)ctx->ctx);
+
+	return 0;
+}
+
+static int mixer_runtime_suspend(struct device *dev)
+{
+	struct exynos_drm_hdmi_context *ctx = get_mixer_context(dev);
+
+	DRM_DEBUG_KMS("suspend - start\n");
+
+	mixer_resource_poweroff((struct mixer_context *)ctx->ctx);
+
+	return 0;
+}
+
+static const struct dev_pm_ops mixer_pm_ops = {
+	.runtime_suspend = mixer_runtime_suspend,
+	.runtime_resume	 = mixer_runtime_resume,
+};
+
+static int __devinit mixer_resources_init(struct exynos_drm_hdmi_context *ctx,
+				 struct platform_device *pdev)
+{
+	struct mixer_context *mixer_ctx =
+			(struct mixer_context *)ctx->ctx;
+	struct device *dev = &pdev->dev;
+	struct mixer_resources *mixer_res = &mixer_ctx->mixer_res;
+	struct resource *res;
+	int ret;
+
+	mixer_res->dev = dev;
+	spin_lock_init(&mixer_res->reg_slock);
+
+	mixer_res->mixer = clk_get(dev, "mixer");
+	if (IS_ERR_OR_NULL(mixer_res->mixer)) {
+		dev_err(dev, "failed to get clock 'mixer'\n");
+		ret = -ENODEV;
+		goto fail;
+	}
+	mixer_res->vp = clk_get(dev, "vp");
+	if (IS_ERR_OR_NULL(mixer_res->vp)) {
+		dev_err(dev, "failed to get clock 'vp'\n");
+		ret = -ENODEV;
+		goto fail;
+	}
+	mixer_res->sclk_mixer = clk_get(dev, "sclk_mixer");
+	if (IS_ERR_OR_NULL(mixer_res->sclk_mixer)) {
+		dev_err(dev, "failed to get clock 'sclk_mixer'\n");
+		ret = -ENODEV;
+		goto fail;
+	}
+	mixer_res->sclk_hdmi = clk_get(dev, "sclk_hdmi");
+	if (IS_ERR_OR_NULL(mixer_res->sclk_hdmi)) {
+		dev_err(dev, "failed to get clock 'sclk_hdmi'\n");
+		ret = -ENODEV;
+		goto fail;
+	}
+	mixer_res->sclk_dac = clk_get(dev, "sclk_dac");
+	if (IS_ERR_OR_NULL(mixer_res->sclk_dac)) {
+		dev_err(dev, "failed to get clock 'sclk_dac'\n");
+		ret = -ENODEV;
+		goto fail;
+	}
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "mxr");
+	if (res == NULL) {
+		dev_err(dev, "get memory resource failed.\n");
+		ret = -ENXIO;
+		goto fail;
+	}
+
+	clk_set_parent(mixer_res->sclk_mixer, mixer_res->sclk_hdmi);
+
+	mixer_res->mixer_regs = ioremap(res->start, resource_size(res));
+	if (mixer_res->mixer_regs == NULL) {
+		dev_err(dev, "register mapping failed.\n");
+		ret = -ENXIO;
+		goto fail;
+	}
+
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "vp");
+	if (res == NULL) {
+		dev_err(dev, "get memory resource failed.\n");
+		ret = -ENXIO;
+		goto fail_mixer_regs;
+	}
+
+	mixer_res->vp_regs = ioremap(res->start, resource_size(res));
+	if (mixer_res->vp_regs == NULL) {
+		dev_err(dev, "register mapping failed.\n");
+		ret = -ENXIO;
+		goto fail_mixer_regs;
+	}
+
+	res = platform_get_resource_byname(pdev, IORESOURCE_IRQ, "irq");
+	if (res == NULL) {
+		dev_err(dev, "get interrupt resource failed.\n");
+		ret = -ENXIO;
+		goto fail_vp_regs;
+	}
+
+	ret = request_irq(res->start, mixer_irq_handler, 0, "drm_mixer", ctx);
+	if (ret) {
+		dev_err(dev, "request interrupt failed.\n");
+		goto fail_vp_regs;
+	}
+	mixer_res->irq = res->start;
+
+	return 0;
+
+fail_vp_regs:
+	iounmap(mixer_res->vp_regs);
+
+fail_mixer_regs:
+	iounmap(mixer_res->mixer_regs);
+
+fail:
+	if (!IS_ERR_OR_NULL(mixer_res->sclk_dac))
+		clk_put(mixer_res->sclk_dac);
+	if (!IS_ERR_OR_NULL(mixer_res->sclk_hdmi))
+		clk_put(mixer_res->sclk_hdmi);
+	if (!IS_ERR_OR_NULL(mixer_res->sclk_mixer))
+		clk_put(mixer_res->sclk_mixer);
+	if (!IS_ERR_OR_NULL(mixer_res->vp))
+		clk_put(mixer_res->vp);
+	if (!IS_ERR_OR_NULL(mixer_res->mixer))
+		clk_put(mixer_res->mixer);
+	mixer_res->dev = NULL;
+	return ret;
+}
+
+static void mixer_resources_cleanup(struct mixer_context *ctx)
+{
+	struct mixer_resources *res = &ctx->mixer_res;
+
+	disable_irq(res->irq);
+	free_irq(res->irq, ctx);
+
+	iounmap(res->vp_regs);
+	iounmap(res->mixer_regs);
+}
+
+static int __devinit mixer_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct exynos_drm_hdmi_context *drm_hdmi_ctx;
+	struct mixer_context *ctx;
+	int ret;
+
+	dev_info(dev, "probe start\n");
+
+	drm_hdmi_ctx = kzalloc(sizeof(*drm_hdmi_ctx), GFP_KERNEL);
+	if (!drm_hdmi_ctx) {
+		DRM_ERROR("failed to allocate common hdmi context.\n");
+		return -ENOMEM;
+	}
+
+	ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
+	if (!ctx) {
+		DRM_ERROR("failed to alloc mixer context.\n");
+		kfree(drm_hdmi_ctx);
+		return -ENOMEM;
+	}
+
+	drm_hdmi_ctx->ctx = (void *)ctx;
+
+	platform_set_drvdata(pdev, drm_hdmi_ctx);
+
+	/* acquire resources: regs, irqs, clocks */
+	ret = mixer_resources_init(drm_hdmi_ctx, pdev);
+	if (ret)
+		goto fail;
+
+	/* register specific callback point to common hdmi. */
+	exynos_drm_overlay_ops_register(&overlay_ops);
+
+	mixer_resource_poweron(ctx);
+
+	return 0;
+
+
+fail:
+	dev_info(dev, "probe failed\n");
+	return ret;
+}
+
+static int mixer_remove(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct exynos_drm_hdmi_context *drm_hdmi_ctx =
+					platform_get_drvdata(pdev);
+	struct mixer_context *ctx = (struct mixer_context *)drm_hdmi_ctx->ctx;
+
+	dev_info(dev, "remove sucessful\n");
+
+	mixer_resource_poweroff(ctx);
+	mixer_resources_cleanup(ctx);
+
+	return 0;
+}
+
+struct platform_driver mixer_driver = {
+	.driver = {
+		.name = "s5p-mixer",
+		.owner = THIS_MODULE,
+		.pm = &mixer_pm_ops,
+	},
+	.probe = mixer_probe,
+	.remove = __devexit_p(mixer_remove),
+};
+EXPORT_SYMBOL(mixer_driver);
+
+MODULE_AUTHOR("Seung-Woo Kim, <sw0312.kim@samsung.com>");
+MODULE_AUTHOR("Inki Dae <inki.dae@samsung.com>");
+MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
+MODULE_DESCRIPTION("Samsung DRM HDMI mixer Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/gpu/drm/exynos/exynos_mixer.h b/drivers/gpu/drm/exynos/exynos_mixer.h
new file mode 100644
index 000000000000..cebacfefc077
--- /dev/null
+++ b/drivers/gpu/drm/exynos/exynos_mixer.h
@@ -0,0 +1,92 @@
+/*
+ *
+ * Copyright (c) 2011 Samsung Electronics Co., Ltd.
+ * Authors:
+ *	Seung-Woo Kim <sw0312.kim@samsung.com>
+ *	Inki Dae <inki.dae@samsung.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef _EXYNOS_MIXER_H_
+#define _EXYNOS_MIXER_H_
+
+#define HDMI_OVERLAY_NUMBER	3
+
+struct hdmi_win_data {
+	dma_addr_t		dma_addr;
+	void __iomem		*vaddr;
+	dma_addr_t		chroma_dma_addr;
+	void __iomem		*chroma_vaddr;
+	uint32_t		pixel_format;
+	unsigned int		bpp;
+	unsigned int		crtc_x;
+	unsigned int		crtc_y;
+	unsigned int		crtc_width;
+	unsigned int		crtc_height;
+	unsigned int		fb_x;
+	unsigned int		fb_y;
+	unsigned int		fb_width;
+	unsigned int		fb_height;
+	unsigned int		mode_width;
+	unsigned int		mode_height;
+	unsigned int		scan_flags;
+};
+
+struct mixer_resources {
+	struct device *dev;
+	/** interrupt index */
+	int irq;
+	/** pointer to Mixer registers */
+	void __iomem *mixer_regs;
+	/** pointer to Video Processor registers */
+	void __iomem *vp_regs;
+	/** spinlock for protection of registers */
+	spinlock_t reg_slock;
+	/** other resources */
+	struct clk *mixer;
+	struct clk *vp;
+	struct clk *sclk_mixer;
+	struct clk *sclk_hdmi;
+	struct clk *sclk_dac;
+};
+
+struct mixer_context {
+	unsigned int			default_win;
+	struct fb_videomode		*default_timing;
+	unsigned int			default_bpp;
+
+	/** mixer interrupt */
+	unsigned int irq;
+	/** current crtc pipe for vblank */
+	int pipe;
+	/** interlace scan mode */
+	bool interlace;
+	/** vp enabled status */
+	bool vp_enabled;
+
+	/** mixer and vp resources */
+	struct mixer_resources mixer_res;
+
+	/** overlay window data */
+	struct hdmi_win_data		win_data[HDMI_OVERLAY_NUMBER];
+};
+
+#endif
diff --git a/drivers/gpu/drm/exynos/regs-hdmi.h b/drivers/gpu/drm/exynos/regs-hdmi.h
new file mode 100644
index 000000000000..72e6b52be740
--- /dev/null
+++ b/drivers/gpu/drm/exynos/regs-hdmi.h
@@ -0,0 +1,147 @@
+/*
+ *
+ *  Cloned from drivers/media/video/s5p-tv/regs-hdmi.h
+ *
+ * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com/
+ *
+ * HDMI register header file for Samsung TVOUT driver
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef SAMSUNG_REGS_HDMI_H
+#define SAMSUNG_REGS_HDMI_H
+
+/*
+ * Register part
+*/
+
+#define HDMI_CTRL_BASE(x)		((x) + 0x00000000)
+#define HDMI_CORE_BASE(x)		((x) + 0x00010000)
+#define HDMI_TG_BASE(x)			((x) + 0x00050000)
+
+/* Control registers */
+#define HDMI_INTC_CON			HDMI_CTRL_BASE(0x0000)
+#define HDMI_INTC_FLAG			HDMI_CTRL_BASE(0x0004)
+#define HDMI_HPD_STATUS			HDMI_CTRL_BASE(0x000C)
+#define HDMI_PHY_RSTOUT			HDMI_CTRL_BASE(0x0014)
+#define HDMI_PHY_VPLL			HDMI_CTRL_BASE(0x0018)
+#define HDMI_PHY_CMU			HDMI_CTRL_BASE(0x001C)
+#define HDMI_CORE_RSTOUT		HDMI_CTRL_BASE(0x0020)
+
+/* Core registers */
+#define HDMI_CON_0			HDMI_CORE_BASE(0x0000)
+#define HDMI_CON_1			HDMI_CORE_BASE(0x0004)
+#define HDMI_CON_2			HDMI_CORE_BASE(0x0008)
+#define HDMI_SYS_STATUS			HDMI_CORE_BASE(0x0010)
+#define HDMI_PHY_STATUS			HDMI_CORE_BASE(0x0014)
+#define HDMI_STATUS_EN			HDMI_CORE_BASE(0x0020)
+#define HDMI_HPD			HDMI_CORE_BASE(0x0030)
+#define HDMI_MODE_SEL			HDMI_CORE_BASE(0x0040)
+#define HDMI_BLUE_SCREEN_0		HDMI_CORE_BASE(0x0050)
+#define HDMI_BLUE_SCREEN_1		HDMI_CORE_BASE(0x0054)
+#define HDMI_BLUE_SCREEN_2		HDMI_CORE_BASE(0x0058)
+#define HDMI_H_BLANK_0			HDMI_CORE_BASE(0x00A0)
+#define HDMI_H_BLANK_1			HDMI_CORE_BASE(0x00A4)
+#define HDMI_V_BLANK_0			HDMI_CORE_BASE(0x00B0)
+#define HDMI_V_BLANK_1			HDMI_CORE_BASE(0x00B4)
+#define HDMI_V_BLANK_2			HDMI_CORE_BASE(0x00B8)
+#define HDMI_H_V_LINE_0			HDMI_CORE_BASE(0x00C0)
+#define HDMI_H_V_LINE_1			HDMI_CORE_BASE(0x00C4)
+#define HDMI_H_V_LINE_2			HDMI_CORE_BASE(0x00C8)
+#define HDMI_VSYNC_POL			HDMI_CORE_BASE(0x00E4)
+#define HDMI_INT_PRO_MODE		HDMI_CORE_BASE(0x00E8)
+#define HDMI_V_BLANK_F_0		HDMI_CORE_BASE(0x0110)
+#define HDMI_V_BLANK_F_1		HDMI_CORE_BASE(0x0114)
+#define HDMI_V_BLANK_F_2		HDMI_CORE_BASE(0x0118)
+#define HDMI_H_SYNC_GEN_0		HDMI_CORE_BASE(0x0120)
+#define HDMI_H_SYNC_GEN_1		HDMI_CORE_BASE(0x0124)
+#define HDMI_H_SYNC_GEN_2		HDMI_CORE_BASE(0x0128)
+#define HDMI_V_SYNC_GEN_1_0		HDMI_CORE_BASE(0x0130)
+#define HDMI_V_SYNC_GEN_1_1		HDMI_CORE_BASE(0x0134)
+#define HDMI_V_SYNC_GEN_1_2		HDMI_CORE_BASE(0x0138)
+#define HDMI_V_SYNC_GEN_2_0		HDMI_CORE_BASE(0x0140)
+#define HDMI_V_SYNC_GEN_2_1		HDMI_CORE_BASE(0x0144)
+#define HDMI_V_SYNC_GEN_2_2		HDMI_CORE_BASE(0x0148)
+#define HDMI_V_SYNC_GEN_3_0		HDMI_CORE_BASE(0x0150)
+#define HDMI_V_SYNC_GEN_3_1		HDMI_CORE_BASE(0x0154)
+#define HDMI_V_SYNC_GEN_3_2		HDMI_CORE_BASE(0x0158)
+#define HDMI_ACR_CON			HDMI_CORE_BASE(0x0180)
+#define HDMI_AVI_CON			HDMI_CORE_BASE(0x0300)
+#define HDMI_AVI_BYTE(n)		HDMI_CORE_BASE(0x0320 + 4 * (n))
+#define HDMI_DC_CONTROL			HDMI_CORE_BASE(0x05C0)
+#define HDMI_VIDEO_PATTERN_GEN		HDMI_CORE_BASE(0x05C4)
+#define HDMI_HPD_GEN			HDMI_CORE_BASE(0x05C8)
+#define HDMI_AUI_CON			HDMI_CORE_BASE(0x0360)
+#define HDMI_SPD_CON			HDMI_CORE_BASE(0x0400)
+
+/* Timing generator registers */
+#define HDMI_TG_CMD			HDMI_TG_BASE(0x0000)
+#define HDMI_TG_H_FSZ_L			HDMI_TG_BASE(0x0018)
+#define HDMI_TG_H_FSZ_H			HDMI_TG_BASE(0x001C)
+#define HDMI_TG_HACT_ST_L		HDMI_TG_BASE(0x0020)
+#define HDMI_TG_HACT_ST_H		HDMI_TG_BASE(0x0024)
+#define HDMI_TG_HACT_SZ_L		HDMI_TG_BASE(0x0028)
+#define HDMI_TG_HACT_SZ_H		HDMI_TG_BASE(0x002C)
+#define HDMI_TG_V_FSZ_L			HDMI_TG_BASE(0x0030)
+#define HDMI_TG_V_FSZ_H			HDMI_TG_BASE(0x0034)
+#define HDMI_TG_VSYNC_L			HDMI_TG_BASE(0x0038)
+#define HDMI_TG_VSYNC_H			HDMI_TG_BASE(0x003C)
+#define HDMI_TG_VSYNC2_L		HDMI_TG_BASE(0x0040)
+#define HDMI_TG_VSYNC2_H		HDMI_TG_BASE(0x0044)
+#define HDMI_TG_VACT_ST_L		HDMI_TG_BASE(0x0048)
+#define HDMI_TG_VACT_ST_H		HDMI_TG_BASE(0x004C)
+#define HDMI_TG_VACT_SZ_L		HDMI_TG_BASE(0x0050)
+#define HDMI_TG_VACT_SZ_H		HDMI_TG_BASE(0x0054)
+#define HDMI_TG_FIELD_CHG_L		HDMI_TG_BASE(0x0058)
+#define HDMI_TG_FIELD_CHG_H		HDMI_TG_BASE(0x005C)
+#define HDMI_TG_VACT_ST2_L		HDMI_TG_BASE(0x0060)
+#define HDMI_TG_VACT_ST2_H		HDMI_TG_BASE(0x0064)
+#define HDMI_TG_VSYNC_TOP_HDMI_L	HDMI_TG_BASE(0x0078)
+#define HDMI_TG_VSYNC_TOP_HDMI_H	HDMI_TG_BASE(0x007C)
+#define HDMI_TG_VSYNC_BOT_HDMI_L	HDMI_TG_BASE(0x0080)
+#define HDMI_TG_VSYNC_BOT_HDMI_H	HDMI_TG_BASE(0x0084)
+#define HDMI_TG_FIELD_TOP_HDMI_L	HDMI_TG_BASE(0x0088)
+#define HDMI_TG_FIELD_TOP_HDMI_H	HDMI_TG_BASE(0x008C)
+#define HDMI_TG_FIELD_BOT_HDMI_L	HDMI_TG_BASE(0x0090)
+#define HDMI_TG_FIELD_BOT_HDMI_H	HDMI_TG_BASE(0x0094)
+
+/*
+ * Bit definition part
+ */
+
+/* HDMI_INTC_CON */
+#define HDMI_INTC_EN_GLOBAL		(1 << 6)
+#define HDMI_INTC_EN_HPD_PLUG		(1 << 3)
+#define HDMI_INTC_EN_HPD_UNPLUG		(1 << 2)
+
+/* HDMI_INTC_FLAG */
+#define HDMI_INTC_FLAG_HPD_PLUG		(1 << 3)
+#define HDMI_INTC_FLAG_HPD_UNPLUG	(1 << 2)
+
+/* HDMI_PHY_RSTOUT */
+#define HDMI_PHY_SW_RSTOUT		(1 << 0)
+
+/* HDMI_CORE_RSTOUT */
+#define HDMI_CORE_SW_RSTOUT		(1 << 0)
+
+/* HDMI_CON_0 */
+#define HDMI_BLUE_SCR_EN		(1 << 5)
+#define HDMI_EN				(1 << 0)
+
+/* HDMI_PHY_STATUS */
+#define HDMI_PHY_STATUS_READY		(1 << 0)
+
+/* HDMI_MODE_SEL */
+#define HDMI_MODE_HDMI_EN		(1 << 1)
+#define HDMI_MODE_DVI_EN		(1 << 0)
+#define HDMI_MODE_MASK			(3 << 0)
+
+/* HDMI_TG_CMD */
+#define HDMI_TG_EN			(1 << 0)
+#define HDMI_FIELD_EN			(1 << 1)
+
+#endif /* SAMSUNG_REGS_HDMI_H */
diff --git a/drivers/gpu/drm/exynos/regs-mixer.h b/drivers/gpu/drm/exynos/regs-mixer.h
new file mode 100644
index 000000000000..fd2f4d14cf6d
--- /dev/null
+++ b/drivers/gpu/drm/exynos/regs-mixer.h
@@ -0,0 +1,141 @@
+/*
+ *
+ *  Cloned from drivers/media/video/s5p-tv/regs-mixer.h
+ *
+ * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
+ * http://www.samsung.com/
+ *
+ * Mixer register header file for Samsung Mixer driver
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+#ifndef SAMSUNG_REGS_MIXER_H
+#define SAMSUNG_REGS_MIXER_H
+
+/*
+ * Register part
+ */
+#define MXR_STATUS			0x0000
+#define MXR_CFG				0x0004
+#define MXR_INT_EN			0x0008
+#define MXR_INT_STATUS			0x000C
+#define MXR_LAYER_CFG			0x0010
+#define MXR_VIDEO_CFG			0x0014
+#define MXR_GRAPHIC0_CFG		0x0020
+#define MXR_GRAPHIC0_BASE		0x0024
+#define MXR_GRAPHIC0_SPAN		0x0028
+#define MXR_GRAPHIC0_SXY		0x002C
+#define MXR_GRAPHIC0_WH			0x0030
+#define MXR_GRAPHIC0_DXY		0x0034
+#define MXR_GRAPHIC0_BLANK		0x0038
+#define MXR_GRAPHIC1_CFG		0x0040
+#define MXR_GRAPHIC1_BASE		0x0044
+#define MXR_GRAPHIC1_SPAN		0x0048
+#define MXR_GRAPHIC1_SXY		0x004C
+#define MXR_GRAPHIC1_WH			0x0050
+#define MXR_GRAPHIC1_DXY		0x0054
+#define MXR_GRAPHIC1_BLANK		0x0058
+#define MXR_BG_CFG			0x0060
+#define MXR_BG_COLOR0			0x0064
+#define MXR_BG_COLOR1			0x0068
+#define MXR_BG_COLOR2			0x006C
+#define MXR_CM_COEFF_Y			0x0080
+#define MXR_CM_COEFF_CB			0x0084
+#define MXR_CM_COEFF_CR			0x0088
+#define MXR_GRAPHIC0_BASE_S		0x2024
+#define MXR_GRAPHIC1_BASE_S		0x2044
+
+/* for parametrized access to layer registers */
+#define MXR_GRAPHIC_CFG(i)		(0x0020 + (i) * 0x20)
+#define MXR_GRAPHIC_BASE(i)		(0x0024 + (i) * 0x20)
+#define MXR_GRAPHIC_SPAN(i)		(0x0028 + (i) * 0x20)
+#define MXR_GRAPHIC_SXY(i)		(0x002C + (i) * 0x20)
+#define MXR_GRAPHIC_WH(i)		(0x0030 + (i) * 0x20)
+#define MXR_GRAPHIC_DXY(i)		(0x0034 + (i) * 0x20)
+#define MXR_GRAPHIC_BLANK(i)		(0x0038 + (i) * 0x20)
+#define MXR_GRAPHIC_BASE_S(i)		(0x2024 + (i) * 0x20)
+
+/*
+ * Bit definition part
+ */
+
+/* generates mask for range of bits */
+#define MXR_MASK(high_bit, low_bit) \
+	(((2 << ((high_bit) - (low_bit))) - 1) << (low_bit))
+
+#define MXR_MASK_VAL(val, high_bit, low_bit) \
+	(((val) << (low_bit)) & MXR_MASK(high_bit, low_bit))
+
+/* bits for MXR_STATUS */
+#define MXR_STATUS_16_BURST		(1 << 7)
+#define MXR_STATUS_BURST_MASK		(1 << 7)
+#define MXR_STATUS_BIG_ENDIAN		(1 << 3)
+#define MXR_STATUS_ENDIAN_MASK		(1 << 3)
+#define MXR_STATUS_SYNC_ENABLE		(1 << 2)
+#define MXR_STATUS_REG_RUN		(1 << 0)
+
+/* bits for MXR_CFG */
+#define MXR_CFG_RGB601_0_255		(0 << 9)
+#define MXR_CFG_RGB601_16_235		(1 << 9)
+#define MXR_CFG_RGB709_0_255		(2 << 9)
+#define MXR_CFG_RGB709_16_235		(3 << 9)
+#define MXR_CFG_RGB_FMT_MASK		0x600
+#define MXR_CFG_OUT_YUV444		(0 << 8)
+#define MXR_CFG_OUT_RGB888		(1 << 8)
+#define MXR_CFG_OUT_MASK		(1 << 8)
+#define MXR_CFG_DST_SDO			(0 << 7)
+#define MXR_CFG_DST_HDMI		(1 << 7)
+#define MXR_CFG_DST_MASK		(1 << 7)
+#define MXR_CFG_SCAN_HD_720		(0 << 6)
+#define MXR_CFG_SCAN_HD_1080		(1 << 6)
+#define MXR_CFG_GRP1_ENABLE		(1 << 5)
+#define MXR_CFG_GRP0_ENABLE		(1 << 4)
+#define MXR_CFG_VP_ENABLE		(1 << 3)
+#define MXR_CFG_SCAN_INTERLACE		(0 << 2)
+#define MXR_CFG_SCAN_PROGRASSIVE	(1 << 2)
+#define MXR_CFG_SCAN_NTSC		(0 << 1)
+#define MXR_CFG_SCAN_PAL		(1 << 1)
+#define MXR_CFG_SCAN_SD			(0 << 0)
+#define MXR_CFG_SCAN_HD			(1 << 0)
+#define MXR_CFG_SCAN_MASK		0x47
+
+/* bits for MXR_GRAPHICn_CFG */
+#define MXR_GRP_CFG_COLOR_KEY_DISABLE	(1 << 21)
+#define MXR_GRP_CFG_BLEND_PRE_MUL	(1 << 20)
+#define MXR_GRP_CFG_WIN_BLEND_EN	(1 << 17)
+#define MXR_GRP_CFG_PIXEL_BLEND_EN	(1 << 16)
+#define MXR_GRP_CFG_FORMAT_VAL(x)	MXR_MASK_VAL(x, 11, 8)
+#define MXR_GRP_CFG_FORMAT_MASK		MXR_GRP_CFG_FORMAT_VAL(~0)
+#define MXR_GRP_CFG_ALPHA_VAL(x)	MXR_MASK_VAL(x, 7, 0)
+
+/* bits for MXR_GRAPHICn_WH */
+#define MXR_GRP_WH_H_SCALE(x)		MXR_MASK_VAL(x, 28, 28)
+#define MXR_GRP_WH_V_SCALE(x)		MXR_MASK_VAL(x, 12, 12)
+#define MXR_GRP_WH_WIDTH(x)		MXR_MASK_VAL(x, 26, 16)
+#define MXR_GRP_WH_HEIGHT(x)		MXR_MASK_VAL(x, 10, 0)
+
+/* bits for MXR_GRAPHICn_SXY */
+#define MXR_GRP_SXY_SX(x)		MXR_MASK_VAL(x, 26, 16)
+#define MXR_GRP_SXY_SY(x)		MXR_MASK_VAL(x, 10, 0)
+
+/* bits for MXR_GRAPHICn_DXY */
+#define MXR_GRP_DXY_DX(x)		MXR_MASK_VAL(x, 26, 16)
+#define MXR_GRP_DXY_DY(x)		MXR_MASK_VAL(x, 10, 0)
+
+/* bits for MXR_INT_EN */
+#define MXR_INT_EN_VSYNC		(1 << 11)
+#define MXR_INT_EN_ALL			(0x0f << 8)
+
+/* bit for MXR_INT_STATUS */
+#define MXR_INT_CLEAR_VSYNC		(1 << 11)
+#define MXR_INT_STATUS_VSYNC		(1 << 0)
+
+/* bit for MXR_LAYER_CFG */
+#define MXR_LAYER_CFG_GRP1_VAL(x)	MXR_MASK_VAL(x, 11, 8)
+#define MXR_LAYER_CFG_GRP0_VAL(x)	MXR_MASK_VAL(x, 7, 4)
+#define MXR_LAYER_CFG_VP_VAL(x)		MXR_MASK_VAL(x, 3, 0)
+
+#endif /* SAMSUNG_REGS_MIXER_H */
+
diff --git a/drivers/gpu/drm/exynos/regs-vp.h b/drivers/gpu/drm/exynos/regs-vp.h
new file mode 100644
index 000000000000..10b737af0a72
--- /dev/null
+++ b/drivers/gpu/drm/exynos/regs-vp.h
@@ -0,0 +1,91 @@
+/*
+ *
+ *  Cloned from drivers/media/video/s5p-tv/regs-vp.h
+ *
+ * Copyright (c) 2010-2011 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * Video processor register header file for Samsung Mixer driver
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef SAMSUNG_REGS_VP_H
+#define SAMSUNG_REGS_VP_H
+
+/*
+ * Register part
+ */
+
+#define VP_ENABLE			0x0000
+#define VP_SRESET			0x0004
+#define VP_SHADOW_UPDATE		0x0008
+#define VP_FIELD_ID			0x000C
+#define VP_MODE				0x0010
+#define VP_IMG_SIZE_Y			0x0014
+#define VP_IMG_SIZE_C			0x0018
+#define VP_PER_RATE_CTRL		0x001C
+#define VP_TOP_Y_PTR			0x0028
+#define VP_BOT_Y_PTR			0x002C
+#define VP_TOP_C_PTR			0x0030
+#define VP_BOT_C_PTR			0x0034
+#define VP_ENDIAN_MODE			0x03CC
+#define VP_SRC_H_POSITION		0x0044
+#define VP_SRC_V_POSITION		0x0048
+#define VP_SRC_WIDTH			0x004C
+#define VP_SRC_HEIGHT			0x0050
+#define VP_DST_H_POSITION		0x0054
+#define VP_DST_V_POSITION		0x0058
+#define VP_DST_WIDTH			0x005C
+#define VP_DST_HEIGHT			0x0060
+#define VP_H_RATIO			0x0064
+#define VP_V_RATIO			0x0068
+#define VP_POLY8_Y0_LL			0x006C
+#define VP_POLY4_Y0_LL			0x00EC
+#define VP_POLY4_C0_LL			0x012C
+
+/*
+ * Bit definition part
+ */
+
+/* generates mask for range of bits */
+
+#define VP_MASK(high_bit, low_bit) \
+	(((2 << ((high_bit) - (low_bit))) - 1) << (low_bit))
+
+#define VP_MASK_VAL(val, high_bit, low_bit) \
+	(((val) << (low_bit)) & VP_MASK(high_bit, low_bit))
+
+ /* VP_ENABLE */
+#define VP_ENABLE_ON			(1 << 0)
+
+/* VP_SRESET */
+#define VP_SRESET_PROCESSING		(1 << 0)
+
+/* VP_SHADOW_UPDATE */
+#define VP_SHADOW_UPDATE_ENABLE		(1 << 0)
+
+/* VP_MODE */
+#define VP_MODE_NV12			(0 << 6)
+#define VP_MODE_NV21			(1 << 6)
+#define VP_MODE_LINE_SKIP		(1 << 5)
+#define VP_MODE_MEM_LINEAR		(0 << 4)
+#define VP_MODE_MEM_TILED		(1 << 4)
+#define VP_MODE_FMT_MASK		(5 << 4)
+#define VP_MODE_FIELD_ID_AUTO_TOGGLING	(1 << 2)
+#define VP_MODE_2D_IPC			(1 << 1)
+
+/* VP_IMG_SIZE_Y */
+/* VP_IMG_SIZE_C */
+#define VP_IMG_HSIZE(x)			VP_MASK_VAL(x, 29, 16)
+#define VP_IMG_VSIZE(x)			VP_MASK_VAL(x, 13, 0)
+
+/* VP_SRC_H_POSITION */
+#define VP_SRC_H_POSITION_VAL(x)	VP_MASK_VAL(x, 14, 4)
+
+/* VP_ENDIAN_MODE */
+#define VP_ENDIAN_MODE_LITTLE		(1 << 0)
+
+#endif /* SAMSUNG_REGS_VP_H */
diff --git a/drivers/gpu/drm/gma500/Kconfig b/drivers/gpu/drm/gma500/Kconfig
new file mode 100644
index 000000000000..754e14bdc801
--- /dev/null
+++ b/drivers/gpu/drm/gma500/Kconfig
@@ -0,0 +1,27 @@
+config DRM_GMA500
+	tristate "Intel GMA5/600 KMS Framebuffer"
+	depends on DRM && PCI && X86 && EXPERIMENTAL
+	select FB_CFB_COPYAREA
+        select FB_CFB_FILLRECT
+        select FB_CFB_IMAGEBLIT
+        select DRM_KMS_HELPER
+        select DRM_TTM
+	help
+	  Say yes for an experimental 2D KMS framebuffer driver for the
+	  Intel GMA500 ('Poulsbo') and other Intel IMG based graphics
+	  devices.
+
+config DRM_GMA600
+	bool "Intel GMA600 support (Experimental)"
+	depends on DRM_GMA500
+	help
+	  Say yes to include support for GMA600 (Intel Moorestown/Oaktrail)
+	  platforms with LVDS ports. HDMI and MIPI are not currently
+	  supported.
+
+config DRM_GMA3600
+	bool "Intel GMA3600/3650 support (Experimental)"
+	depends on DRM_GMA500
+	help
+	  Say yes to include basic support for Intel GMA3600/3650 (Intel
+	  Cedar Trail) platforms.
diff --git a/drivers/gpu/drm/gma500/Makefile b/drivers/gpu/drm/gma500/Makefile
new file mode 100644
index 000000000000..81c103be5e21
--- /dev/null
+++ b/drivers/gpu/drm/gma500/Makefile
@@ -0,0 +1,40 @@
+#
+#	KMS driver for the GMA500
+#
+ccflags-y += -Iinclude/drm
+
+gma500_gfx-y += gem_glue.o \
+	  accel_2d.o \
+	  backlight.o \
+	  framebuffer.o \
+	  gem.o \
+	  gtt.o \
+	  intel_bios.o \
+	  intel_i2c.o \
+	  intel_gmbus.o \
+	  intel_opregion.o \
+	  mmu.o \
+	  power.o \
+	  psb_drv.o \
+	  psb_intel_display.o \
+	  psb_intel_lvds.o \
+	  psb_intel_modes.o \
+	  psb_intel_sdvo.o \
+	  psb_lid.o \
+	  psb_irq.o \
+	  psb_device.o \
+	  mid_bios.o
+
+gma500_gfx-$(CONFIG_DRM_GMA3600) +=  cdv_device.o \
+	  cdv_intel_crt.o \
+	  cdv_intel_display.o \
+	  cdv_intel_hdmi.o \
+	  cdv_intel_lvds.o
+
+gma500_gfx-$(CONFIG_DRM_GMA600) += oaktrail_device.o \
+	  oaktrail_crtc.o \
+	  oaktrail_lvds.o \
+	  oaktrail_hdmi.o \
+	  oaktrail_hdmi_i2c.o
+
+obj-$(CONFIG_DRM_GMA500) += gma500_gfx.o
diff --git a/drivers/gpu/drm/gma500/accel_2d.c b/drivers/gpu/drm/gma500/accel_2d.c
new file mode 100644
index 000000000000..d5ef1a5793c8
--- /dev/null
+++ b/drivers/gpu/drm/gma500/accel_2d.c
@@ -0,0 +1,364 @@
+/**************************************************************************
+ * Copyright (c) 2007-2011, Intel Corporation.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
+ * develop this driver.
+ *
+ **************************************************************************/
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/tty.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/fb.h>
+#include <linux/init.h>
+#include <linux/console.h>
+
+#include <drm/drmP.h>
+#include <drm/drm.h>
+#include <drm/drm_crtc.h>
+
+#include "psb_drv.h"
+#include "psb_reg.h"
+#include "framebuffer.h"
+
+/**
+ *	psb_spank		-	reset the 2D engine
+ *	@dev_priv: our PSB DRM device
+ *
+ *	Soft reset the graphics engine and then reload the necessary registers.
+ *	We use this at initialisation time but it will become relevant for
+ *	accelerated X later
+ */
+void psb_spank(struct drm_psb_private *dev_priv)
+{
+	PSB_WSGX32(_PSB_CS_RESET_BIF_RESET | _PSB_CS_RESET_DPM_RESET |
+		_PSB_CS_RESET_TA_RESET | _PSB_CS_RESET_USE_RESET |
+		_PSB_CS_RESET_ISP_RESET | _PSB_CS_RESET_TSP_RESET |
+		_PSB_CS_RESET_TWOD_RESET, PSB_CR_SOFT_RESET);
+	PSB_RSGX32(PSB_CR_SOFT_RESET);
+
+	msleep(1);
+
+	PSB_WSGX32(0, PSB_CR_SOFT_RESET);
+	wmb();
+	PSB_WSGX32(PSB_RSGX32(PSB_CR_BIF_CTRL) | _PSB_CB_CTRL_CLEAR_FAULT,
+		   PSB_CR_BIF_CTRL);
+	wmb();
+	(void) PSB_RSGX32(PSB_CR_BIF_CTRL);
+
+	msleep(1);
+	PSB_WSGX32(PSB_RSGX32(PSB_CR_BIF_CTRL) & ~_PSB_CB_CTRL_CLEAR_FAULT,
+		   PSB_CR_BIF_CTRL);
+	(void) PSB_RSGX32(PSB_CR_BIF_CTRL);
+	PSB_WSGX32(dev_priv->gtt.gatt_start, PSB_CR_BIF_TWOD_REQ_BASE);
+}
+
+/**
+ *	psb2_2d_wait_available	-	wait for FIFO room
+ *	@dev_priv: our DRM device
+ *	@size: size (in dwords) of the command we want to issue
+ *
+ *	Wait until there is room to load the FIFO with our data. If the
+ *	device is not responding then reset it
+ */
+static int psb_2d_wait_available(struct drm_psb_private *dev_priv,
+			  unsigned size)
+{
+	uint32_t avail = PSB_RSGX32(PSB_CR_2D_SOCIF);
+	unsigned long t = jiffies + HZ;
+
+	while (avail < size) {
+		avail = PSB_RSGX32(PSB_CR_2D_SOCIF);
+		if (time_after(jiffies, t)) {
+			psb_spank(dev_priv);
+			return -EIO;
+		}
+	}
+	return 0;
+}
+
+/**
+ *	psb_2d_submit		-	submit a 2D command
+ *	@dev_priv: our DRM device
+ *	@cmdbuf: command to issue
+ *	@size: length (in dwords)
+ *
+ *	Issue one or more 2D commands to the accelerator. This needs to be
+ *	serialized later when we add the GEM interfaces for acceleration
+ */
+static int psbfb_2d_submit(struct drm_psb_private *dev_priv, uint32_t *cmdbuf,
+								unsigned size)
+{
+	int ret = 0;
+	int i;
+	unsigned submit_size;
+	unsigned long flags;
+
+	spin_lock_irqsave(&dev_priv->lock_2d, flags);
+	while (size > 0) {
+		submit_size = (size < 0x60) ? size : 0x60;
+		size -= submit_size;
+		ret = psb_2d_wait_available(dev_priv, submit_size);
+		if (ret)
+			break;
+
+		submit_size <<= 2;
+
+		for (i = 0; i < submit_size; i += 4)
+			PSB_WSGX32(*cmdbuf++, PSB_SGX_2D_SLAVE_PORT + i);
+
+		(void)PSB_RSGX32(PSB_SGX_2D_SLAVE_PORT + i - 4);
+	}
+	spin_unlock_irqrestore(&dev_priv->lock_2d, flags);
+	return ret;
+}
+
+
+/**
+ *	psb_accel_2d_copy_direction	-	compute blit order
+ *	@xdir: X direction of move
+ *	@ydir: Y direction of move
+ *
+ *	Compute the correct order setings to ensure that an overlapping blit
+ *	correctly copies all the pixels.
+ */
+static u32 psb_accel_2d_copy_direction(int xdir, int ydir)
+{
+	if (xdir < 0)
+		return (ydir < 0) ? PSB_2D_COPYORDER_BR2TL :
+						PSB_2D_COPYORDER_TR2BL;
+	else
+		return (ydir < 0) ? PSB_2D_COPYORDER_BL2TR :
+						PSB_2D_COPYORDER_TL2BR;
+}
+
+/**
+ *	psb_accel_2d_copy		-	accelerated 2D copy
+ *	@dev_priv: our DRM device
+ *	@src_offset in bytes
+ *	@src_stride in bytes
+ *	@src_format psb 2D format defines
+ *	@dst_offset in bytes
+ *	@dst_stride in bytes
+ *	@dst_format psb 2D format defines
+ *	@src_x offset in pixels
+ *	@src_y offset in pixels
+ *	@dst_x offset in pixels
+ *	@dst_y offset in pixels
+ *	@size_x of the copied area
+ *	@size_y of the copied area
+ *
+ *	Format and issue a 2D accelerated copy command.
+ */
+static int psb_accel_2d_copy(struct drm_psb_private *dev_priv,
+			     uint32_t src_offset, uint32_t src_stride,
+			     uint32_t src_format, uint32_t dst_offset,
+			     uint32_t dst_stride, uint32_t dst_format,
+			     uint16_t src_x, uint16_t src_y,
+			     uint16_t dst_x, uint16_t dst_y,
+			     uint16_t size_x, uint16_t size_y)
+{
+	uint32_t blit_cmd;
+	uint32_t buffer[10];
+	uint32_t *buf;
+	uint32_t direction;
+
+	buf = buffer;
+
+	direction =
+	    psb_accel_2d_copy_direction(src_x - dst_x, src_y - dst_y);
+
+	if (direction == PSB_2D_COPYORDER_BR2TL ||
+	    direction == PSB_2D_COPYORDER_TR2BL) {
+		src_x += size_x - 1;
+		dst_x += size_x - 1;
+	}
+	if (direction == PSB_2D_COPYORDER_BR2TL ||
+	    direction == PSB_2D_COPYORDER_BL2TR) {
+		src_y += size_y - 1;
+		dst_y += size_y - 1;
+	}
+
+	blit_cmd =
+	    PSB_2D_BLIT_BH |
+	    PSB_2D_ROT_NONE |
+	    PSB_2D_DSTCK_DISABLE |
+	    PSB_2D_SRCCK_DISABLE |
+	    PSB_2D_USE_PAT | PSB_2D_ROP3_SRCCOPY | direction;
+
+	*buf++ = PSB_2D_FENCE_BH;
+	*buf++ =
+	    PSB_2D_DST_SURF_BH | dst_format | (dst_stride <<
+					       PSB_2D_DST_STRIDE_SHIFT);
+	*buf++ = dst_offset;
+	*buf++ =
+	    PSB_2D_SRC_SURF_BH | src_format | (src_stride <<
+					       PSB_2D_SRC_STRIDE_SHIFT);
+	*buf++ = src_offset;
+	*buf++ =
+	    PSB_2D_SRC_OFF_BH | (src_x << PSB_2D_SRCOFF_XSTART_SHIFT) |
+	    (src_y << PSB_2D_SRCOFF_YSTART_SHIFT);
+	*buf++ = blit_cmd;
+	*buf++ =
+	    (dst_x << PSB_2D_DST_XSTART_SHIFT) | (dst_y <<
+						  PSB_2D_DST_YSTART_SHIFT);
+	*buf++ =
+	    (size_x << PSB_2D_DST_XSIZE_SHIFT) | (size_y <<
+						  PSB_2D_DST_YSIZE_SHIFT);
+	*buf++ = PSB_2D_FLUSH_BH;
+
+	return psbfb_2d_submit(dev_priv, buffer, buf - buffer);
+}
+
+/**
+ *	psbfb_copyarea_accel	-	copyarea acceleration for /dev/fb
+ *	@info: our framebuffer
+ *	@a: copyarea parameters from the framebuffer core
+ *
+ *	Perform a 2D copy via the accelerator
+ */
+static void psbfb_copyarea_accel(struct fb_info *info,
+				 const struct fb_copyarea *a)
+{
+	struct psb_fbdev *fbdev = info->par;
+	struct psb_framebuffer *psbfb = &fbdev->pfb;
+	struct drm_device *dev = psbfb->base.dev;
+	struct drm_framebuffer *fb = fbdev->psb_fb_helper.fb;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	uint32_t offset;
+	uint32_t stride;
+	uint32_t src_format;
+	uint32_t dst_format;
+
+	if (!fb)
+		return;
+
+	offset = psbfb->gtt->offset;
+	stride = fb->pitches[0];
+
+	switch (fb->depth) {
+	case 8:
+		src_format = PSB_2D_SRC_332RGB;
+		dst_format = PSB_2D_DST_332RGB;
+		break;
+	case 15:
+		src_format = PSB_2D_SRC_555RGB;
+		dst_format = PSB_2D_DST_555RGB;
+		break;
+	case 16:
+		src_format = PSB_2D_SRC_565RGB;
+		dst_format = PSB_2D_DST_565RGB;
+		break;
+	case 24:
+	case 32:
+		/* this is wrong but since we don't do blending its okay */
+		src_format = PSB_2D_SRC_8888ARGB;
+		dst_format = PSB_2D_DST_8888ARGB;
+		break;
+	default:
+		/* software fallback */
+		cfb_copyarea(info, a);
+		return;
+	}
+
+	if (!gma_power_begin(dev, false)) {
+		cfb_copyarea(info, a);
+		return;
+	}
+	psb_accel_2d_copy(dev_priv,
+			  offset, stride, src_format,
+			  offset, stride, dst_format,
+			  a->sx, a->sy, a->dx, a->dy, a->width, a->height);
+	gma_power_end(dev);
+}
+
+/**
+ *	psbfb_copyarea	-	2D copy interface
+ *	@info: our framebuffer
+ *	@region: region to copy
+ *
+ *	Copy an area of the framebuffer console either by the accelerator
+ *	or directly using the cfb helpers according to the request
+ */
+void psbfb_copyarea(struct fb_info *info,
+			   const struct fb_copyarea *region)
+{
+	if (unlikely(info->state != FBINFO_STATE_RUNNING))
+		return;
+
+	/* Avoid the 8 pixel erratum */
+	if (region->width == 8 || region->height == 8 ||
+		(info->flags & FBINFO_HWACCEL_DISABLED))
+		return cfb_copyarea(info, region);
+
+	psbfb_copyarea_accel(info, region);
+}
+
+/**
+ *	psbfb_sync	-	synchronize 2D
+ *	@info: our framebuffer
+ *
+ *	Wait for the 2D engine to quiesce so that we can do CPU
+ *	access to the framebuffer again
+ */
+int psbfb_sync(struct fb_info *info)
+{
+	struct psb_fbdev *fbdev = info->par;
+	struct psb_framebuffer *psbfb = &fbdev->pfb;
+	struct drm_device *dev = psbfb->base.dev;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	unsigned long _end = jiffies + DRM_HZ;
+	int busy = 0;
+	unsigned long flags;
+
+	spin_lock_irqsave(&dev_priv->lock_2d, flags);
+	/*
+	 * First idle the 2D engine.
+	 */
+
+	if ((PSB_RSGX32(PSB_CR_2D_SOCIF) == _PSB_C2_SOCIF_EMPTY) &&
+	    ((PSB_RSGX32(PSB_CR_2D_BLIT_STATUS) & _PSB_C2B_STATUS_BUSY) == 0))
+		goto out;
+
+	do {
+		busy = (PSB_RSGX32(PSB_CR_2D_SOCIF) != _PSB_C2_SOCIF_EMPTY);
+		cpu_relax();
+	} while (busy && !time_after_eq(jiffies, _end));
+
+	if (busy)
+		busy = (PSB_RSGX32(PSB_CR_2D_SOCIF) != _PSB_C2_SOCIF_EMPTY);
+	if (busy)
+		goto out;
+
+	do {
+		busy = ((PSB_RSGX32(PSB_CR_2D_BLIT_STATUS) &
+						_PSB_C2B_STATUS_BUSY) != 0);
+		cpu_relax();
+	} while (busy && !time_after_eq(jiffies, _end));
+	if (busy)
+		busy = ((PSB_RSGX32(PSB_CR_2D_BLIT_STATUS) &
+					_PSB_C2B_STATUS_BUSY) != 0);
+
+out:
+	spin_unlock_irqrestore(&dev_priv->lock_2d, flags);
+	return (busy) ? -EBUSY : 0;
+}
diff --git a/drivers/gpu/drm/gma500/backlight.c b/drivers/gpu/drm/gma500/backlight.c
new file mode 100644
index 000000000000..20793951fcac
--- /dev/null
+++ b/drivers/gpu/drm/gma500/backlight.c
@@ -0,0 +1,49 @@
+/*
+ * GMA500 Backlight Interface
+ *
+ * Copyright (c) 2009-2011, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Authors: Eric Knopp
+ *
+ */
+
+#include "psb_drv.h"
+#include "psb_intel_reg.h"
+#include "psb_intel_drv.h"
+#include "intel_bios.h"
+#include "power.h"
+
+int gma_backlight_init(struct drm_device *dev)
+{
+#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	return dev_priv->ops->backlight_init(dev);
+#else
+	return 0;
+#endif
+}
+
+void gma_backlight_exit(struct drm_device *dev)
+{
+#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	if (dev_priv->backlight_device) {
+		dev_priv->backlight_device->props.brightness = 0;
+		backlight_update_status(dev_priv->backlight_device);
+		backlight_device_unregister(dev_priv->backlight_device);
+	}
+#endif
+}
diff --git a/drivers/gpu/drm/gma500/cdv_device.c b/drivers/gpu/drm/gma500/cdv_device.c
new file mode 100644
index 000000000000..4a5b099c3bc5
--- /dev/null
+++ b/drivers/gpu/drm/gma500/cdv_device.c
@@ -0,0 +1,351 @@
+/**************************************************************************
+ * Copyright (c) 2011, Intel Corporation.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ **************************************************************************/
+
+#include <linux/backlight.h>
+#include <drm/drmP.h>
+#include <drm/drm.h>
+#include "gma_drm.h"
+#include "psb_drv.h"
+#include "psb_reg.h"
+#include "psb_intel_reg.h"
+#include "intel_bios.h"
+#include "cdv_device.h"
+
+#define VGA_SR_INDEX		0x3c4
+#define VGA_SR_DATA		0x3c5
+
+static void cdv_disable_vga(struct drm_device *dev)
+{
+	u8 sr1;
+	u32 vga_reg;
+
+	vga_reg = VGACNTRL;
+
+	outb(1, VGA_SR_INDEX);
+	sr1 = inb(VGA_SR_DATA);
+	outb(sr1 | 1<<5, VGA_SR_DATA);
+	udelay(300);
+
+	REG_WRITE(vga_reg, VGA_DISP_DISABLE);
+	REG_READ(vga_reg);
+}
+
+static int cdv_output_init(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	cdv_disable_vga(dev);
+
+	cdv_intel_crt_init(dev, &dev_priv->mode_dev);
+	cdv_intel_lvds_init(dev, &dev_priv->mode_dev);
+
+	/* These bits indicate HDMI not SDVO on CDV, but we don't yet support
+	   the HDMI interface */
+	if (REG_READ(SDVOB) & SDVO_DETECTED)
+		cdv_hdmi_init(dev, &dev_priv->mode_dev, SDVOB);
+	if (REG_READ(SDVOC) & SDVO_DETECTED)
+		cdv_hdmi_init(dev, &dev_priv->mode_dev, SDVOC);
+	return 0;
+}
+
+#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
+
+/*
+ *	Poulsbo Backlight Interfaces
+ */
+
+#define BLC_PWM_PRECISION_FACTOR 100	/* 10000000 */
+#define BLC_PWM_FREQ_CALC_CONSTANT 32
+#define MHz 1000000
+
+#define PSB_BLC_PWM_PRECISION_FACTOR    10
+#define PSB_BLC_MAX_PWM_REG_FREQ        0xFFFE
+#define PSB_BLC_MIN_PWM_REG_FREQ        0x2
+
+#define PSB_BACKLIGHT_PWM_POLARITY_BIT_CLEAR (0xFFFE)
+#define PSB_BACKLIGHT_PWM_CTL_SHIFT	(16)
+
+static int cdv_brightness;
+static struct backlight_device *cdv_backlight_device;
+
+static int cdv_get_brightness(struct backlight_device *bd)
+{
+	/* return locally cached var instead of HW read (due to DPST etc.) */
+	/* FIXME: ideally return actual value in case firmware fiddled with
+	   it */
+	return cdv_brightness;
+}
+
+
+static int cdv_backlight_setup(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	unsigned long core_clock;
+	/* u32 bl_max_freq; */
+	/* unsigned long value; */
+	u16 bl_max_freq;
+	uint32_t value;
+	uint32_t blc_pwm_precision_factor;
+
+	/* get bl_max_freq and pol from dev_priv*/
+	if (!dev_priv->lvds_bl) {
+		dev_err(dev->dev, "Has no valid LVDS backlight info\n");
+		return -ENOENT;
+	}
+	bl_max_freq = dev_priv->lvds_bl->freq;
+	blc_pwm_precision_factor = PSB_BLC_PWM_PRECISION_FACTOR;
+
+	core_clock = dev_priv->core_freq;
+
+	value = (core_clock * MHz) / BLC_PWM_FREQ_CALC_CONSTANT;
+	value *= blc_pwm_precision_factor;
+	value /= bl_max_freq;
+	value /= blc_pwm_precision_factor;
+
+	if (value > (unsigned long long)PSB_BLC_MAX_PWM_REG_FREQ ||
+		 value < (unsigned long long)PSB_BLC_MIN_PWM_REG_FREQ)
+				return -ERANGE;
+	else {
+		/* FIXME */
+	}
+	return 0;
+}
+
+static int cdv_set_brightness(struct backlight_device *bd)
+{
+	int level = bd->props.brightness;
+
+	/* Percentage 1-100% being valid */
+	if (level < 1)
+		level = 1;
+
+	/*cdv_intel_lvds_set_brightness(dev, level); FIXME */
+	cdv_brightness = level;
+	return 0;
+}
+
+static const struct backlight_ops cdv_ops = {
+	.get_brightness = cdv_get_brightness,
+	.update_status  = cdv_set_brightness,
+};
+
+static int cdv_backlight_init(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	int ret;
+	struct backlight_properties props;
+
+	memset(&props, 0, sizeof(struct backlight_properties));
+	props.max_brightness = 100;
+	props.type = BACKLIGHT_PLATFORM;
+
+	cdv_backlight_device = backlight_device_register("psb-bl",
+					NULL, (void *)dev, &cdv_ops, &props);
+	if (IS_ERR(cdv_backlight_device))
+		return PTR_ERR(cdv_backlight_device);
+
+	ret = cdv_backlight_setup(dev);
+	if (ret < 0) {
+		backlight_device_unregister(cdv_backlight_device);
+		cdv_backlight_device = NULL;
+		return ret;
+	}
+	cdv_backlight_device->props.brightness = 100;
+	cdv_backlight_device->props.max_brightness = 100;
+	backlight_update_status(cdv_backlight_device);
+	dev_priv->backlight_device = cdv_backlight_device;
+	return 0;
+}
+
+#endif
+
+/*
+ *	Provide the Cedarview specific chip logic and low level methods
+ *	for power management
+ *
+ *	FIXME: we need to implement the apm/ospm base management bits
+ *	for this and the MID devices.
+ */
+
+static inline u32 CDV_MSG_READ32(uint port, uint offset)
+{
+	int mcr = (0x10<<24) | (port << 16) | (offset << 8);
+	uint32_t ret_val = 0;
+	struct pci_dev *pci_root = pci_get_bus_and_slot(0, 0);
+	pci_write_config_dword(pci_root, 0xD0, mcr);
+	pci_read_config_dword(pci_root, 0xD4, &ret_val);
+	pci_dev_put(pci_root);
+	return ret_val;
+}
+
+static inline void CDV_MSG_WRITE32(uint port, uint offset, u32 value)
+{
+	int mcr = (0x11<<24) | (port << 16) | (offset << 8) | 0xF0;
+	struct pci_dev *pci_root = pci_get_bus_and_slot(0, 0);
+	pci_write_config_dword(pci_root, 0xD4, value);
+	pci_write_config_dword(pci_root, 0xD0, mcr);
+	pci_dev_put(pci_root);
+}
+
+#define PSB_APM_CMD			0x0
+#define PSB_APM_STS			0x04
+#define PSB_PM_SSC			0x20
+#define PSB_PM_SSS			0x30
+#define PSB_PWRGT_GFX_MASK		0x3
+#define CDV_PWRGT_DISPLAY_CNTR		0x000fc00c
+#define CDV_PWRGT_DISPLAY_STS		0x000fc00c
+
+static void cdv_init_pm(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	u32 pwr_cnt;
+	int i;
+
+	dev_priv->apm_base = CDV_MSG_READ32(PSB_PUNIT_PORT,
+							PSB_APMBA) & 0xFFFF;
+	dev_priv->ospm_base = CDV_MSG_READ32(PSB_PUNIT_PORT,
+							PSB_OSPMBA) & 0xFFFF;
+
+	/* Force power on for now */
+	pwr_cnt = inl(dev_priv->apm_base + PSB_APM_CMD);
+	pwr_cnt &= ~PSB_PWRGT_GFX_MASK;
+
+	outl(pwr_cnt, dev_priv->apm_base + PSB_APM_CMD);
+	for (i = 0; i < 5; i++) {
+		u32 pwr_sts = inl(dev_priv->apm_base + PSB_APM_STS);
+		if ((pwr_sts & PSB_PWRGT_GFX_MASK) == 0)
+			break;
+		udelay(10);
+	}
+	pwr_cnt = inl(dev_priv->ospm_base + PSB_PM_SSC);
+	pwr_cnt &= ~CDV_PWRGT_DISPLAY_CNTR;
+	outl(pwr_cnt, dev_priv->ospm_base + PSB_PM_SSC);
+	for (i = 0; i < 5; i++) {
+		u32 pwr_sts = inl(dev_priv->ospm_base + PSB_PM_SSS);
+		if ((pwr_sts & CDV_PWRGT_DISPLAY_STS) == 0)
+			break;
+		udelay(10);
+	}
+}
+
+/**
+ *	cdv_save_display_registers	-	save registers lost on suspend
+ *	@dev: our DRM device
+ *
+ *	Save the state we need in order to be able to restore the interface
+ *	upon resume from suspend
+ *
+ *	FIXME: review
+ */
+static int cdv_save_display_registers(struct drm_device *dev)
+{
+	return 0;
+}
+
+/**
+ *	cdv_restore_display_registers	-	restore lost register state
+ *	@dev: our DRM device
+ *
+ *	Restore register state that was lost during suspend and resume.
+ *
+ *	FIXME: review
+ */
+static int cdv_restore_display_registers(struct drm_device *dev)
+{
+	return 0;
+}
+
+static int cdv_power_down(struct drm_device *dev)
+{
+	return 0;
+}
+
+static int cdv_power_up(struct drm_device *dev)
+{
+	return 0;
+}
+
+/* FIXME ? - shared with Poulsbo */
+static void cdv_get_core_freq(struct drm_device *dev)
+{
+	uint32_t clock;
+	struct pci_dev *pci_root = pci_get_bus_and_slot(0, 0);
+	struct drm_psb_private *dev_priv = dev->dev_private;
+
+	pci_write_config_dword(pci_root, 0xD0, 0xD0050300);
+	pci_read_config_dword(pci_root, 0xD4, &clock);
+	pci_dev_put(pci_root);
+
+	switch (clock & 0x07) {
+	case 0:
+		dev_priv->core_freq = 100;
+		break;
+	case 1:
+		dev_priv->core_freq = 133;
+		break;
+	case 2:
+		dev_priv->core_freq = 150;
+		break;
+	case 3:
+		dev_priv->core_freq = 178;
+		break;
+	case 4:
+		dev_priv->core_freq = 200;
+		break;
+	case 5:
+	case 6:
+	case 7:
+		dev_priv->core_freq = 266;
+	default:
+		dev_priv->core_freq = 0;
+	}
+}
+
+static int cdv_chip_setup(struct drm_device *dev)
+{
+	cdv_get_core_freq(dev);
+	gma_intel_opregion_init(dev);
+	psb_intel_init_bios(dev);
+	return 0;
+}
+
+/* CDV is much like Poulsbo but has MID like SGX offsets and PM */
+
+const struct psb_ops cdv_chip_ops = {
+	.name = "GMA3600/3650",
+	.accel_2d = 0,
+	.pipes = 2,
+	.crtcs = 2,
+	.sgx_offset = MRST_SGX_OFFSET,
+	.chip_setup = cdv_chip_setup,
+
+	.crtc_helper = &cdv_intel_helper_funcs,
+	.crtc_funcs = &cdv_intel_crtc_funcs,
+
+	.output_init = cdv_output_init,
+
+#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
+	.backlight_init = cdv_backlight_init,
+#endif
+
+	.init_pm = cdv_init_pm,
+	.save_regs = cdv_save_display_registers,
+	.restore_regs = cdv_restore_display_registers,
+	.power_down = cdv_power_down,
+	.power_up = cdv_power_up,
+};
diff --git a/drivers/gpu/drm/gma500/cdv_device.h b/drivers/gpu/drm/gma500/cdv_device.h
new file mode 100644
index 000000000000..2a88b7beb551
--- /dev/null
+++ b/drivers/gpu/drm/gma500/cdv_device.h
@@ -0,0 +1,36 @@
+/*
+ * Copyright © 2011 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+extern const struct drm_crtc_helper_funcs cdv_intel_helper_funcs;
+extern const struct drm_crtc_funcs cdv_intel_crtc_funcs;
+extern void cdv_intel_crt_init(struct drm_device *dev,
+			struct psb_intel_mode_device *mode_dev);
+extern void cdv_intel_lvds_init(struct drm_device *dev,
+			struct psb_intel_mode_device *mode_dev);
+extern void cdv_hdmi_init(struct drm_device *dev, struct psb_intel_mode_device *mode_dev,
+			int reg);
+extern struct drm_display_mode *cdv_intel_crtc_mode_get(struct drm_device *dev,
+					     struct drm_crtc *crtc);
+
+extern inline void cdv_intel_wait_for_vblank(struct drm_device *dev)
+{
+	/* Wait for 20ms, i.e. one cycle at 50hz. */
+        /* FIXME: msleep ?? */
+	mdelay(20);
+}
+
+
diff --git a/drivers/gpu/drm/gma500/cdv_intel_crt.c b/drivers/gpu/drm/gma500/cdv_intel_crt.c
new file mode 100644
index 000000000000..6d0f10b7569c
--- /dev/null
+++ b/drivers/gpu/drm/gma500/cdv_intel_crt.c
@@ -0,0 +1,333 @@
+/*
+ * Copyright © 2006-2007 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *	Eric Anholt <eric@anholt.net>
+ */
+
+#include <linux/i2c.h>
+#include <drm/drmP.h>
+
+#include "intel_bios.h"
+#include "psb_drv.h"
+#include "psb_intel_drv.h"
+#include "psb_intel_reg.h"
+#include "power.h"
+#include <linux/pm_runtime.h>
+
+
+static void cdv_intel_crt_dpms(struct drm_encoder *encoder, int mode)
+{
+	struct drm_device *dev = encoder->dev;
+	u32 temp, reg;
+	reg = ADPA;
+
+	temp = REG_READ(reg);
+	temp &= ~(ADPA_HSYNC_CNTL_DISABLE | ADPA_VSYNC_CNTL_DISABLE);
+	temp &= ~ADPA_DAC_ENABLE;
+
+	switch (mode) {
+	case DRM_MODE_DPMS_ON:
+		temp |= ADPA_DAC_ENABLE;
+		break;
+	case DRM_MODE_DPMS_STANDBY:
+		temp |= ADPA_DAC_ENABLE | ADPA_HSYNC_CNTL_DISABLE;
+		break;
+	case DRM_MODE_DPMS_SUSPEND:
+		temp |= ADPA_DAC_ENABLE | ADPA_VSYNC_CNTL_DISABLE;
+		break;
+	case DRM_MODE_DPMS_OFF:
+		temp |= ADPA_HSYNC_CNTL_DISABLE | ADPA_VSYNC_CNTL_DISABLE;
+		break;
+	}
+
+	REG_WRITE(reg, temp);
+}
+
+static int cdv_intel_crt_mode_valid(struct drm_connector *connector,
+				struct drm_display_mode *mode)
+{
+	int max_clock = 0;
+	if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
+		return MODE_NO_DBLESCAN;
+
+	/* The lowest clock for CDV is 20000KHz */
+	if (mode->clock < 20000)
+		return MODE_CLOCK_LOW;
+
+	/* The max clock for CDV is 355 instead of 400 */
+	max_clock = 355000;
+	if (mode->clock > max_clock)
+		return MODE_CLOCK_HIGH;
+
+	if (mode->hdisplay > 1680 || mode->vdisplay > 1050)
+		return MODE_PANEL;
+
+	return MODE_OK;
+}
+
+static bool cdv_intel_crt_mode_fixup(struct drm_encoder *encoder,
+				 struct drm_display_mode *mode,
+				 struct drm_display_mode *adjusted_mode)
+{
+	return true;
+}
+
+static void cdv_intel_crt_mode_set(struct drm_encoder *encoder,
+			       struct drm_display_mode *mode,
+			       struct drm_display_mode *adjusted_mode)
+{
+
+	struct drm_device *dev = encoder->dev;
+	struct drm_crtc *crtc = encoder->crtc;
+	struct psb_intel_crtc *psb_intel_crtc =
+					to_psb_intel_crtc(crtc);
+	int dpll_md_reg;
+	u32 adpa, dpll_md;
+	u32 adpa_reg;
+
+	if (psb_intel_crtc->pipe == 0)
+		dpll_md_reg = DPLL_A_MD;
+	else
+		dpll_md_reg = DPLL_B_MD;
+
+	adpa_reg = ADPA;
+
+	/*
+	 * Disable separate mode multiplier used when cloning SDVO to CRT
+	 * XXX this needs to be adjusted when we really are cloning
+	 */
+	{
+		dpll_md = REG_READ(dpll_md_reg);
+		REG_WRITE(dpll_md_reg,
+			   dpll_md & ~DPLL_MD_UDI_MULTIPLIER_MASK);
+	}
+
+	adpa = 0;
+	if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC)
+		adpa |= ADPA_HSYNC_ACTIVE_HIGH;
+	if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC)
+		adpa |= ADPA_VSYNC_ACTIVE_HIGH;
+
+	if (psb_intel_crtc->pipe == 0)
+		adpa |= ADPA_PIPE_A_SELECT;
+	else
+		adpa |= ADPA_PIPE_B_SELECT;
+
+	REG_WRITE(adpa_reg, adpa);
+}
+
+
+/**
+ * Uses CRT_HOTPLUG_EN and CRT_HOTPLUG_STAT to detect CRT presence.
+ *
+ * \return true if CRT is connected.
+ * \return false if CRT is disconnected.
+ */
+static bool cdv_intel_crt_detect_hotplug(struct drm_connector *connector,
+								bool force)
+{
+	struct drm_device *dev = connector->dev;
+	u32 hotplug_en;
+	int i, tries = 0, ret = false;
+	u32 adpa_orig;
+
+	/* disable the DAC when doing the hotplug detection */
+
+	adpa_orig = REG_READ(ADPA);
+
+	REG_WRITE(ADPA, adpa_orig & ~(ADPA_DAC_ENABLE));
+
+	/*
+	 * On a CDV thep, CRT detect sequence need to be done twice
+	 * to get a reliable result.
+	 */
+	tries = 2;
+
+	hotplug_en = REG_READ(PORT_HOTPLUG_EN);
+	hotplug_en &= ~(CRT_HOTPLUG_DETECT_MASK);
+	hotplug_en |= CRT_HOTPLUG_FORCE_DETECT;
+
+	hotplug_en |= CRT_HOTPLUG_ACTIVATION_PERIOD_64;
+	hotplug_en |= CRT_HOTPLUG_VOLTAGE_COMPARE_50;
+
+	for (i = 0; i < tries ; i++) {
+		unsigned long timeout;
+		/* turn on the FORCE_DETECT */
+		REG_WRITE(PORT_HOTPLUG_EN, hotplug_en);
+		timeout = jiffies + msecs_to_jiffies(1000);
+		/* wait for FORCE_DETECT to go off */
+		do {
+			if (!(REG_READ(PORT_HOTPLUG_EN) &
+					CRT_HOTPLUG_FORCE_DETECT))
+				break;
+			msleep(1);
+		} while (time_after(timeout, jiffies));
+	}
+
+	if ((REG_READ(PORT_HOTPLUG_STAT) & CRT_HOTPLUG_MONITOR_MASK) !=
+	    CRT_HOTPLUG_MONITOR_NONE)
+		ret = true;
+
+	/* Restore the saved ADPA */
+	REG_WRITE(ADPA, adpa_orig);
+	return ret;
+}
+
+static enum drm_connector_status cdv_intel_crt_detect(
+				struct drm_connector *connector, bool force)
+{
+	if (cdv_intel_crt_detect_hotplug(connector, force))
+		return connector_status_connected;
+	else
+		return connector_status_disconnected;
+}
+
+static void cdv_intel_crt_destroy(struct drm_connector *connector)
+{
+	struct psb_intel_encoder *psb_intel_encoder =
+					psb_intel_attached_encoder(connector);
+
+	psb_intel_i2c_destroy(psb_intel_encoder->ddc_bus);
+	drm_sysfs_connector_remove(connector);
+	drm_connector_cleanup(connector);
+	kfree(connector);
+}
+
+static int cdv_intel_crt_get_modes(struct drm_connector *connector)
+{
+	struct psb_intel_encoder *psb_intel_encoder =
+				psb_intel_attached_encoder(connector);
+	return psb_intel_ddc_get_modes(connector, &psb_intel_encoder->ddc_bus->adapter);
+}
+
+static int cdv_intel_crt_set_property(struct drm_connector *connector,
+				  struct drm_property *property,
+				  uint64_t value)
+{
+	return 0;
+}
+
+/*
+ * Routines for controlling stuff on the analog port
+ */
+
+static const struct drm_encoder_helper_funcs cdv_intel_crt_helper_funcs = {
+	.dpms = cdv_intel_crt_dpms,
+	.mode_fixup = cdv_intel_crt_mode_fixup,
+	.prepare = psb_intel_encoder_prepare,
+	.commit = psb_intel_encoder_commit,
+	.mode_set = cdv_intel_crt_mode_set,
+};
+
+static const struct drm_connector_funcs cdv_intel_crt_connector_funcs = {
+	.dpms = drm_helper_connector_dpms,
+	.detect = cdv_intel_crt_detect,
+	.fill_modes = drm_helper_probe_single_connector_modes,
+	.destroy = cdv_intel_crt_destroy,
+	.set_property = cdv_intel_crt_set_property,
+};
+
+static const struct drm_connector_helper_funcs
+				cdv_intel_crt_connector_helper_funcs = {
+	.mode_valid = cdv_intel_crt_mode_valid,
+	.get_modes = cdv_intel_crt_get_modes,
+	.best_encoder = psb_intel_best_encoder,
+};
+
+static void cdv_intel_crt_enc_destroy(struct drm_encoder *encoder)
+{
+	drm_encoder_cleanup(encoder);
+}
+
+static const struct drm_encoder_funcs cdv_intel_crt_enc_funcs = {
+	.destroy = cdv_intel_crt_enc_destroy,
+};
+
+void cdv_intel_crt_init(struct drm_device *dev,
+			struct psb_intel_mode_device *mode_dev)
+{
+
+	struct psb_intel_connector *psb_intel_connector;
+	struct psb_intel_encoder *psb_intel_encoder;
+	struct drm_connector *connector;
+	struct drm_encoder *encoder;
+
+	u32 i2c_reg;
+
+	psb_intel_encoder = kzalloc(sizeof(struct psb_intel_encoder), GFP_KERNEL);
+	if (!psb_intel_encoder)
+		return;
+
+	psb_intel_connector = kzalloc(sizeof(struct psb_intel_connector), GFP_KERNEL);
+	if (!psb_intel_connector)
+		goto failed_connector;
+
+	connector = &psb_intel_connector->base;
+	drm_connector_init(dev, connector,
+		&cdv_intel_crt_connector_funcs, DRM_MODE_CONNECTOR_VGA);
+
+	encoder = &psb_intel_encoder->base;
+	drm_encoder_init(dev, encoder,
+		&cdv_intel_crt_enc_funcs, DRM_MODE_ENCODER_DAC);
+
+	psb_intel_connector_attach_encoder(psb_intel_connector,
+					   psb_intel_encoder);
+
+	/* Set up the DDC bus. */
+	i2c_reg = GPIOA;
+	/* Remove the following code for CDV */
+	/*
+	if (dev_priv->crt_ddc_bus != 0)
+		i2c_reg = dev_priv->crt_ddc_bus;
+	}*/
+	psb_intel_encoder->ddc_bus = psb_intel_i2c_create(dev,
+							  i2c_reg, "CRTDDC_A");
+	if (!psb_intel_encoder->ddc_bus) {
+		dev_printk(KERN_ERR, &dev->pdev->dev, "DDC bus registration "
+			   "failed.\n");
+		goto failed_ddc;
+	}
+
+	psb_intel_encoder->type = INTEL_OUTPUT_ANALOG;
+	/*
+	psb_intel_output->clone_mask = (1 << INTEL_ANALOG_CLONE_BIT);
+	psb_intel_output->crtc_mask = (1 << 0) | (1 << 1);
+	*/
+	connector->interlace_allowed = 0;
+	connector->doublescan_allowed = 0;
+
+	drm_encoder_helper_add(encoder, &cdv_intel_crt_helper_funcs);
+	drm_connector_helper_add(connector,
+					&cdv_intel_crt_connector_helper_funcs);
+
+	drm_sysfs_connector_add(connector);
+
+	return;
+failed_ddc:
+	drm_encoder_cleanup(&psb_intel_encoder->base);
+	drm_connector_cleanup(&psb_intel_connector->base);
+	kfree(psb_intel_connector);
+failed_connector:
+	kfree(psb_intel_encoder);
+	return;
+}
diff --git a/drivers/gpu/drm/gma500/cdv_intel_display.c b/drivers/gpu/drm/gma500/cdv_intel_display.c
new file mode 100644
index 000000000000..18d11525095e
--- /dev/null
+++ b/drivers/gpu/drm/gma500/cdv_intel_display.c
@@ -0,0 +1,1508 @@
+/*
+ * Copyright © 2006-2011 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Authors:
+ *	Eric Anholt <eric@anholt.net>
+ */
+
+#include <linux/i2c.h>
+#include <linux/pm_runtime.h>
+
+#include <drm/drmP.h>
+#include "framebuffer.h"
+#include "psb_drv.h"
+#include "psb_intel_drv.h"
+#include "psb_intel_reg.h"
+#include "psb_intel_display.h"
+#include "power.h"
+#include "cdv_device.h"
+
+
+struct cdv_intel_range_t {
+	int min, max;
+};
+
+struct cdv_intel_p2_t {
+	int dot_limit;
+	int p2_slow, p2_fast;
+};
+
+struct cdv_intel_clock_t {
+	/* given values */
+	int n;
+	int m1, m2;
+	int p1, p2;
+	/* derived values */
+	int dot;
+	int vco;
+	int m;
+	int p;
+};
+
+#define INTEL_P2_NUM		      2
+
+struct cdv_intel_limit_t {
+	struct cdv_intel_range_t dot, vco, n, m, m1, m2, p, p1;
+	struct cdv_intel_p2_t p2;
+};
+
+#define CDV_LIMIT_SINGLE_LVDS_96	0
+#define CDV_LIMIT_SINGLE_LVDS_100	1
+#define CDV_LIMIT_DAC_HDMI_27		2
+#define CDV_LIMIT_DAC_HDMI_96		3
+
+static const struct cdv_intel_limit_t cdv_intel_limits[] = {
+	{			/* CDV_SIGNLE_LVDS_96MHz */
+	 .dot = {.min = 20000, .max = 115500},
+	 .vco = {.min = 1800000, .max = 3600000},
+	 .n = {.min = 2, .max = 6},
+	 .m = {.min = 60, .max = 160},
+	 .m1 = {.min = 0, .max = 0},
+	 .m2 = {.min = 58, .max = 158},
+	 .p = {.min = 28, .max = 140},
+	 .p1 = {.min = 2, .max = 10},
+	 .p2 = {.dot_limit = 200000,
+		.p2_slow = 14, .p2_fast = 14},
+	 },
+	{			/* CDV_SINGLE_LVDS_100MHz */
+	 .dot = {.min = 20000, .max = 115500},
+	 .vco = {.min = 1800000, .max = 3600000},
+	 .n = {.min = 2, .max = 6},
+	 .m = {.min = 60, .max = 160},
+	 .m1 = {.min = 0, .max = 0},
+	 .m2 = {.min = 58, .max = 158},
+	 .p = {.min = 28, .max = 140},
+	 .p1 = {.min = 2, .max = 10},
+	 /* The single-channel range is 25-112Mhz, and dual-channel
+	  * is 80-224Mhz.  Prefer single channel as much as possible.
+	  */
+	 .p2 = {.dot_limit = 200000, .p2_slow = 14, .p2_fast = 14},
+	 },
+	{			/* CDV_DAC_HDMI_27MHz */
+	 .dot = {.min = 20000, .max = 400000},
+	 .vco = {.min = 1809000, .max = 3564000},
+	 .n = {.min = 1, .max = 1},
+	 .m = {.min = 67, .max = 132},
+	 .m1 = {.min = 0, .max = 0},
+	 .m2 = {.min = 65, .max = 130},
+	 .p = {.min = 5, .max = 90},
+	 .p1 = {.min = 1, .max = 9},
+	 .p2 = {.dot_limit = 225000, .p2_slow = 10, .p2_fast = 5},
+	 },
+	{			/* CDV_DAC_HDMI_96MHz */
+	 .dot = {.min = 20000, .max = 400000},
+	 .vco = {.min = 1800000, .max = 3600000},
+	 .n = {.min = 2, .max = 6},
+	 .m = {.min = 60, .max = 160},
+	 .m1 = {.min = 0, .max = 0},
+	 .m2 = {.min = 58, .max = 158},
+	 .p = {.min = 5, .max = 100},
+	 .p1 = {.min = 1, .max = 10},
+	 .p2 = {.dot_limit = 225000, .p2_slow = 10, .p2_fast = 5},
+	 },
+};
+
+#define _wait_for(COND, MS, W) ({ \
+	unsigned long timeout__ = jiffies + msecs_to_jiffies(MS);	\
+	int ret__ = 0;							\
+	while (!(COND)) {						\
+		if (time_after(jiffies, timeout__)) {			\
+			ret__ = -ETIMEDOUT;				\
+			break;						\
+		}							\
+		if (W && !in_dbg_master())				\
+			msleep(W);					\
+	}								\
+	ret__;								\
+})
+
+#define wait_for(COND, MS) _wait_for(COND, MS, 1)
+
+
+static int cdv_sb_read(struct drm_device *dev, u32 reg, u32 *val)
+{
+	int ret;
+
+	ret = wait_for((REG_READ(SB_PCKT) & SB_BUSY) == 0, 1000);
+	if (ret) {
+		DRM_ERROR("timeout waiting for SB to idle before read\n");
+		return ret;
+	}
+
+	REG_WRITE(SB_ADDR, reg);
+	REG_WRITE(SB_PCKT,
+		   SET_FIELD(SB_OPCODE_READ, SB_OPCODE) |
+		   SET_FIELD(SB_DEST_DPLL, SB_DEST) |
+		   SET_FIELD(0xf, SB_BYTE_ENABLE));
+
+	ret = wait_for((REG_READ(SB_PCKT) & SB_BUSY) == 0, 1000);
+	if (ret) {
+		DRM_ERROR("timeout waiting for SB to idle after read\n");
+		return ret;
+	}
+
+	*val = REG_READ(SB_DATA);
+
+	return 0;
+}
+
+static int cdv_sb_write(struct drm_device *dev, u32 reg, u32 val)
+{
+	int ret;
+	static bool dpio_debug = true;
+	u32 temp;
+
+	if (dpio_debug) {
+		if (cdv_sb_read(dev, reg, &temp) == 0)
+			DRM_DEBUG_KMS("0x%08x: 0x%08x (before)\n", reg, temp);
+		DRM_DEBUG_KMS("0x%08x: 0x%08x\n", reg, val);
+	}
+
+	ret = wait_for((REG_READ(SB_PCKT) & SB_BUSY) == 0, 1000);
+	if (ret) {
+		DRM_ERROR("timeout waiting for SB to idle before write\n");
+		return ret;
+	}
+
+	REG_WRITE(SB_ADDR, reg);
+	REG_WRITE(SB_DATA, val);
+	REG_WRITE(SB_PCKT,
+		   SET_FIELD(SB_OPCODE_WRITE, SB_OPCODE) |
+		   SET_FIELD(SB_DEST_DPLL, SB_DEST) |
+		   SET_FIELD(0xf, SB_BYTE_ENABLE));
+
+	ret = wait_for((REG_READ(SB_PCKT) & SB_BUSY) == 0, 1000);
+	if (ret) {
+		DRM_ERROR("timeout waiting for SB to idle after write\n");
+		return ret;
+	}
+
+	if (dpio_debug) {
+		if (cdv_sb_read(dev, reg, &temp) == 0)
+			DRM_DEBUG_KMS("0x%08x: 0x%08x (after)\n", reg, temp);
+	}
+
+	return 0;
+}
+
+/* Reset the DPIO configuration register.  The BIOS does this at every
+ * mode set.
+ */
+static void cdv_sb_reset(struct drm_device *dev)
+{
+
+	REG_WRITE(DPIO_CFG, 0);
+	REG_READ(DPIO_CFG);
+	REG_WRITE(DPIO_CFG, DPIO_MODE_SELECT_0 | DPIO_CMN_RESET_N);
+}
+
+/* Unlike most Intel display engines, on Cedarview the DPLL registers
+ * are behind this sideband bus.  They must be programmed while the
+ * DPLL reference clock is on in the DPLL control register, but before
+ * the DPLL is enabled in the DPLL control register.
+ */
+static int
+cdv_dpll_set_clock_cdv(struct drm_device *dev, struct drm_crtc *crtc,
+			       struct cdv_intel_clock_t *clock)
+{
+	struct psb_intel_crtc *psb_crtc =
+				to_psb_intel_crtc(crtc);
+	int pipe = psb_crtc->pipe;
+	u32 m, n_vco, p;
+	int ret = 0;
+	int dpll_reg = (pipe == 0) ? DPLL_A : DPLL_B;
+	u32 ref_value;
+
+	cdv_sb_reset(dev);
+
+	if ((REG_READ(dpll_reg) & DPLL_SYNCLOCK_ENABLE) == 0) {
+		DRM_ERROR("Attempting to set DPLL with refclk disabled\n");
+		return -EBUSY;
+	}
+
+	/* Follow the BIOS and write the REF/SFR Register. Hardcoded value */
+	ref_value = 0x68A701;
+
+	cdv_sb_write(dev, SB_REF_SFR(pipe), ref_value);
+
+	/* We don't know what the other fields of these regs are, so
+	 * leave them in place.
+	 */
+	ret = cdv_sb_read(dev, SB_M(pipe), &m);
+	if (ret)
+		return ret;
+	m &= ~SB_M_DIVIDER_MASK;
+	m |= ((clock->m2) << SB_M_DIVIDER_SHIFT);
+	ret = cdv_sb_write(dev, SB_M(pipe), m);
+	if (ret)
+		return ret;
+
+	ret = cdv_sb_read(dev, SB_N_VCO(pipe), &n_vco);
+	if (ret)
+		return ret;
+
+	/* Follow the BIOS to program the N_DIVIDER REG */
+	n_vco &= 0xFFFF;
+	n_vco |= 0x107;
+	n_vco &= ~(SB_N_VCO_SEL_MASK |
+		   SB_N_DIVIDER_MASK |
+		   SB_N_CB_TUNE_MASK);
+
+	n_vco |= ((clock->n) << SB_N_DIVIDER_SHIFT);
+
+	if (clock->vco < 2250000) {
+		n_vco |= (2 << SB_N_CB_TUNE_SHIFT);
+		n_vco |= (0 << SB_N_VCO_SEL_SHIFT);
+	} else if (clock->vco < 2750000) {
+		n_vco |= (1 << SB_N_CB_TUNE_SHIFT);
+		n_vco |= (1 << SB_N_VCO_SEL_SHIFT);
+	} else if (clock->vco < 3300000) {
+		n_vco |= (0 << SB_N_CB_TUNE_SHIFT);
+		n_vco |= (2 << SB_N_VCO_SEL_SHIFT);
+	} else {
+		n_vco |= (0 << SB_N_CB_TUNE_SHIFT);
+		n_vco |= (3 << SB_N_VCO_SEL_SHIFT);
+	}
+
+	ret = cdv_sb_write(dev, SB_N_VCO(pipe), n_vco);
+	if (ret)
+		return ret;
+
+	ret = cdv_sb_read(dev, SB_P(pipe), &p);
+	if (ret)
+		return ret;
+	p &= ~(SB_P2_DIVIDER_MASK | SB_P1_DIVIDER_MASK);
+	p |= SET_FIELD(clock->p1, SB_P1_DIVIDER);
+	switch (clock->p2) {
+	case 5:
+		p |= SET_FIELD(SB_P2_5, SB_P2_DIVIDER);
+		break;
+	case 10:
+		p |= SET_FIELD(SB_P2_10, SB_P2_DIVIDER);
+		break;
+	case 14:
+		p |= SET_FIELD(SB_P2_14, SB_P2_DIVIDER);
+		break;
+	case 7:
+		p |= SET_FIELD(SB_P2_7, SB_P2_DIVIDER);
+		break;
+	default:
+		DRM_ERROR("Bad P2 clock: %d\n", clock->p2);
+		return -EINVAL;
+	}
+	ret = cdv_sb_write(dev, SB_P(pipe), p);
+	if (ret)
+		return ret;
+
+	/* always Program the Lane Register for the Pipe A*/
+	if (pipe == 0) {
+		/* Program the Lane0/1 for HDMI B */
+		u32 lane_reg, lane_value;
+
+		lane_reg = PSB_LANE0;
+		cdv_sb_read(dev, lane_reg, &lane_value);
+		lane_value &= ~(LANE_PLL_MASK);
+		lane_value |= LANE_PLL_ENABLE;
+		cdv_sb_write(dev, lane_reg, lane_value);
+
+		lane_reg = PSB_LANE1;
+		cdv_sb_read(dev, lane_reg, &lane_value);
+		lane_value &= ~(LANE_PLL_MASK);
+		lane_value |= LANE_PLL_ENABLE;
+		cdv_sb_write(dev, lane_reg, lane_value);
+
+		/* Program the Lane2/3 for HDMI C */
+		lane_reg = PSB_LANE2;
+		cdv_sb_read(dev, lane_reg, &lane_value);
+		lane_value &= ~(LANE_PLL_MASK);
+		lane_value |= LANE_PLL_ENABLE;
+		cdv_sb_write(dev, lane_reg, lane_value);
+
+		lane_reg = PSB_LANE3;
+		cdv_sb_read(dev, lane_reg, &lane_value);
+		lane_value &= ~(LANE_PLL_MASK);
+		lane_value |= LANE_PLL_ENABLE;
+		cdv_sb_write(dev, lane_reg, lane_value);
+	}
+
+	return 0;
+}
+
+/*
+ * Returns whether any encoder on the specified pipe is of the specified type
+ */
+bool cdv_intel_pipe_has_type(struct drm_crtc *crtc, int type)
+{
+	struct drm_device *dev = crtc->dev;
+	struct drm_mode_config *mode_config = &dev->mode_config;
+	struct drm_connector *l_entry;
+
+	list_for_each_entry(l_entry, &mode_config->connector_list, head) {
+		if (l_entry->encoder && l_entry->encoder->crtc == crtc) {
+			struct psb_intel_encoder *psb_intel_encoder =
+					psb_intel_attached_encoder(l_entry);
+			if (psb_intel_encoder->type == type)
+				return true;
+		}
+	}
+	return false;
+}
+
+static const struct cdv_intel_limit_t *cdv_intel_limit(struct drm_crtc *crtc,
+							int refclk)
+{
+	const struct cdv_intel_limit_t *limit;
+	if (cdv_intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)) {
+		/*
+		 * Now only single-channel LVDS is supported on CDV. If it is
+		 * incorrect, please add the dual-channel LVDS.
+		 */
+		if (refclk == 96000)
+			limit = &cdv_intel_limits[CDV_LIMIT_SINGLE_LVDS_96];
+		else
+			limit = &cdv_intel_limits[CDV_LIMIT_SINGLE_LVDS_100];
+	} else {
+		if (refclk == 27000)
+			limit = &cdv_intel_limits[CDV_LIMIT_DAC_HDMI_27];
+		else
+			limit = &cdv_intel_limits[CDV_LIMIT_DAC_HDMI_96];
+	}
+	return limit;
+}
+
+/* m1 is reserved as 0 in CDV, n is a ring counter */
+static void cdv_intel_clock(struct drm_device *dev,
+			int refclk, struct cdv_intel_clock_t *clock)
+{
+	clock->m = clock->m2 + 2;
+	clock->p = clock->p1 * clock->p2;
+	clock->vco = (refclk * clock->m) / clock->n;
+	clock->dot = clock->vco / clock->p;
+}
+
+
+#define INTELPllInvalid(s)   { /* ErrorF (s) */; return false; }
+static bool cdv_intel_PLL_is_valid(struct drm_crtc *crtc,
+				const struct cdv_intel_limit_t *limit,
+			       struct cdv_intel_clock_t *clock)
+{
+	if (clock->p1 < limit->p1.min || limit->p1.max < clock->p1)
+		INTELPllInvalid("p1 out of range\n");
+	if (clock->p < limit->p.min || limit->p.max < clock->p)
+		INTELPllInvalid("p out of range\n");
+	/* unnecessary to check the range of m(m1/M2)/n again */
+	if (clock->vco < limit->vco.min || limit->vco.max < clock->vco)
+		INTELPllInvalid("vco out of range\n");
+	/* XXX: We may need to be checking "Dot clock"
+	 * depending on the multiplier, connector, etc.,
+	 * rather than just a single range.
+	 */
+	if (clock->dot < limit->dot.min || limit->dot.max < clock->dot)
+		INTELPllInvalid("dot out of range\n");
+
+	return true;
+}
+
+static bool cdv_intel_find_best_PLL(struct drm_crtc *crtc, int target,
+				int refclk,
+				struct cdv_intel_clock_t *best_clock)
+{
+	struct drm_device *dev = crtc->dev;
+	struct cdv_intel_clock_t clock;
+	const struct cdv_intel_limit_t *limit = cdv_intel_limit(crtc, refclk);
+	int err = target;
+
+
+	if (cdv_intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) &&
+	    (REG_READ(LVDS) & LVDS_PORT_EN) != 0) {
+		/*
+		 * For LVDS, if the panel is on, just rely on its current
+		 * settings for dual-channel.  We haven't figured out how to
+		 * reliably set up different single/dual channel state, if we
+		 * even can.
+		 */
+		if ((REG_READ(LVDS) & LVDS_CLKB_POWER_MASK) ==
+		    LVDS_CLKB_POWER_UP)
+			clock.p2 = limit->p2.p2_fast;
+		else
+			clock.p2 = limit->p2.p2_slow;
+	} else {
+		if (target < limit->p2.dot_limit)
+			clock.p2 = limit->p2.p2_slow;
+		else
+			clock.p2 = limit->p2.p2_fast;
+	}
+
+	memset(best_clock, 0, sizeof(*best_clock));
+	clock.m1 = 0;
+	/* m1 is reserved as 0 in CDV, n is a ring counter.
+	   So skip the m1 loop */
+	for (clock.n = limit->n.min; clock.n <= limit->n.max; clock.n++) {
+		for (clock.m2 = limit->m2.min; clock.m2 <= limit->m2.max;
+					     clock.m2++) {
+			for (clock.p1 = limit->p1.min;
+					clock.p1 <= limit->p1.max;
+					clock.p1++) {
+				int this_err;
+
+				cdv_intel_clock(dev, refclk, &clock);
+
+				if (!cdv_intel_PLL_is_valid(crtc,
+								limit, &clock))
+						continue;
+
+				this_err = abs(clock.dot - target);
+				if (this_err < err) {
+					*best_clock = clock;
+					err = this_err;
+				}
+			}
+		}
+	}
+
+	return err != target;
+}
+
+int cdv_intel_pipe_set_base(struct drm_crtc *crtc,
+			    int x, int y, struct drm_framebuffer *old_fb)
+{
+	struct drm_device *dev = crtc->dev;
+	struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
+	struct psb_framebuffer *psbfb = to_psb_fb(crtc->fb);
+	int pipe = psb_intel_crtc->pipe;
+	unsigned long start, offset;
+	int dspbase = (pipe == 0 ? DSPABASE : DSPBBASE);
+	int dspsurf = (pipe == 0 ? DSPASURF : DSPBSURF);
+	int dspstride = (pipe == 0) ? DSPASTRIDE : DSPBSTRIDE;
+	int dspcntr_reg = (pipe == 0) ? DSPACNTR : DSPBCNTR;
+	u32 dspcntr;
+	int ret = 0;
+
+	if (!gma_power_begin(dev, true))
+		return 0;
+
+	/* no fb bound */
+	if (!crtc->fb) {
+		dev_err(dev->dev, "No FB bound\n");
+		goto psb_intel_pipe_cleaner;
+	}
+
+
+	/* We are displaying this buffer, make sure it is actually loaded
+	   into the GTT */
+	ret = psb_gtt_pin(psbfb->gtt);
+	if (ret < 0)
+		goto psb_intel_pipe_set_base_exit;
+	start = psbfb->gtt->offset;
+	offset = y * crtc->fb->pitches[0] + x * (crtc->fb->bits_per_pixel / 8);
+
+	REG_WRITE(dspstride, crtc->fb->pitches[0]);
+
+	dspcntr = REG_READ(dspcntr_reg);
+	dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
+
+	switch (crtc->fb->bits_per_pixel) {
+	case 8:
+		dspcntr |= DISPPLANE_8BPP;
+		break;
+	case 16:
+		if (crtc->fb->depth == 15)
+			dspcntr |= DISPPLANE_15_16BPP;
+		else
+			dspcntr |= DISPPLANE_16BPP;
+		break;
+	case 24:
+	case 32:
+		dspcntr |= DISPPLANE_32BPP_NO_ALPHA;
+		break;
+	default:
+		dev_err(dev->dev, "Unknown color depth\n");
+		ret = -EINVAL;
+		goto psb_intel_pipe_set_base_exit;
+	}
+	REG_WRITE(dspcntr_reg, dspcntr);
+
+	dev_dbg(dev->dev,
+		"Writing base %08lX %08lX %d %d\n", start, offset, x, y);
+
+	REG_WRITE(dspbase, offset);
+	REG_READ(dspbase);
+	REG_WRITE(dspsurf, start);
+	REG_READ(dspsurf);
+
+psb_intel_pipe_cleaner:
+	/* If there was a previous display we can now unpin it */
+	if (old_fb)
+		psb_gtt_unpin(to_psb_fb(old_fb)->gtt);
+
+psb_intel_pipe_set_base_exit:
+	gma_power_end(dev);
+	return ret;
+}
+
+/**
+ * Sets the power management mode of the pipe and plane.
+ *
+ * This code should probably grow support for turning the cursor off and back
+ * on appropriately at the same time as we're turning the pipe off/on.
+ */
+static void cdv_intel_crtc_dpms(struct drm_crtc *crtc, int mode)
+{
+	struct drm_device *dev = crtc->dev;
+	struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
+	int pipe = psb_intel_crtc->pipe;
+	int dpll_reg = (pipe == 0) ? DPLL_A : DPLL_B;
+	int dspcntr_reg = (pipe == 0) ? DSPACNTR : DSPBCNTR;
+	int dspbase_reg = (pipe == 0) ? DSPABASE : DSPBBASE;
+	int pipeconf_reg = (pipe == 0) ? PIPEACONF : PIPEBCONF;
+	u32 temp;
+	bool enabled;
+
+	/* XXX: When our outputs are all unaware of DPMS modes other than off
+	 * and on, we should map those modes to DRM_MODE_DPMS_OFF in the CRTC.
+	 */
+	switch (mode) {
+	case DRM_MODE_DPMS_ON:
+	case DRM_MODE_DPMS_STANDBY:
+	case DRM_MODE_DPMS_SUSPEND:
+		/* Enable the DPLL */
+		temp = REG_READ(dpll_reg);
+		if ((temp & DPLL_VCO_ENABLE) == 0) {
+			REG_WRITE(dpll_reg, temp);
+			REG_READ(dpll_reg);
+			/* Wait for the clocks to stabilize. */
+			udelay(150);
+			REG_WRITE(dpll_reg, temp | DPLL_VCO_ENABLE);
+			REG_READ(dpll_reg);
+			/* Wait for the clocks to stabilize. */
+			udelay(150);
+			REG_WRITE(dpll_reg, temp | DPLL_VCO_ENABLE);
+			REG_READ(dpll_reg);
+			/* Wait for the clocks to stabilize. */
+			udelay(150);
+		}
+
+		/* Jim Bish - switch plan and pipe per scott */
+		/* Enable the plane */
+		temp = REG_READ(dspcntr_reg);
+		if ((temp & DISPLAY_PLANE_ENABLE) == 0) {
+			REG_WRITE(dspcntr_reg,
+				  temp | DISPLAY_PLANE_ENABLE);
+			/* Flush the plane changes */
+			REG_WRITE(dspbase_reg, REG_READ(dspbase_reg));
+		}
+
+		udelay(150);
+
+		/* Enable the pipe */
+		temp = REG_READ(pipeconf_reg);
+		if ((temp & PIPEACONF_ENABLE) == 0)
+			REG_WRITE(pipeconf_reg, temp | PIPEACONF_ENABLE);
+
+		psb_intel_crtc_load_lut(crtc);
+
+		/* Give the overlay scaler a chance to enable
+		 * if it's on this pipe */
+		/* psb_intel_crtc_dpms_video(crtc, true); TODO */
+		break;
+	case DRM_MODE_DPMS_OFF:
+		/* Give the overlay scaler a chance to disable
+		 * if it's on this pipe */
+		/* psb_intel_crtc_dpms_video(crtc, FALSE); TODO */
+
+		/* Disable the VGA plane that we never use */
+		REG_WRITE(VGACNTRL, VGA_DISP_DISABLE);
+
+		/* Jim Bish - changed pipe/plane here as well. */
+
+		/* Wait for vblank for the disable to take effect */
+		cdv_intel_wait_for_vblank(dev);
+
+		/* Next, disable display pipes */
+		temp = REG_READ(pipeconf_reg);
+		if ((temp & PIPEACONF_ENABLE) != 0) {
+			REG_WRITE(pipeconf_reg, temp & ~PIPEACONF_ENABLE);
+			REG_READ(pipeconf_reg);
+		}
+
+		/* Wait for vblank for the disable to take effect. */
+		cdv_intel_wait_for_vblank(dev);
+
+		udelay(150);
+
+		/* Disable display plane */
+		temp = REG_READ(dspcntr_reg);
+		if ((temp & DISPLAY_PLANE_ENABLE) != 0) {
+			REG_WRITE(dspcntr_reg,
+				  temp & ~DISPLAY_PLANE_ENABLE);
+			/* Flush the plane changes */
+			REG_WRITE(dspbase_reg, REG_READ(dspbase_reg));
+			REG_READ(dspbase_reg);
+		}
+
+		temp = REG_READ(dpll_reg);
+		if ((temp & DPLL_VCO_ENABLE) != 0) {
+			REG_WRITE(dpll_reg, temp & ~DPLL_VCO_ENABLE);
+			REG_READ(dpll_reg);
+		}
+
+		/* Wait for the clocks to turn off. */
+		udelay(150);
+		break;
+	}
+	enabled = crtc->enabled && mode != DRM_MODE_DPMS_OFF;
+	/*Set FIFO Watermarks*/
+	REG_WRITE(DSPARB, 0x3F3E);
+}
+
+static void cdv_intel_crtc_prepare(struct drm_crtc *crtc)
+{
+	struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
+	crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF);
+}
+
+static void cdv_intel_crtc_commit(struct drm_crtc *crtc)
+{
+	struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
+	crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON);
+}
+
+void cdv_intel_encoder_prepare(struct drm_encoder *encoder)
+{
+	struct drm_encoder_helper_funcs *encoder_funcs =
+	    encoder->helper_private;
+	/* lvds has its own version of prepare see cdv_intel_lvds_prepare */
+	encoder_funcs->dpms(encoder, DRM_MODE_DPMS_OFF);
+}
+
+void cdv_intel_encoder_commit(struct drm_encoder *encoder)
+{
+	struct drm_encoder_helper_funcs *encoder_funcs =
+	    encoder->helper_private;
+	/* lvds has its own version of commit see cdv_intel_lvds_commit */
+	encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON);
+}
+
+static bool cdv_intel_crtc_mode_fixup(struct drm_crtc *crtc,
+				  struct drm_display_mode *mode,
+				  struct drm_display_mode *adjusted_mode)
+{
+	return true;
+}
+
+
+/**
+ * Return the pipe currently connected to the panel fitter,
+ * or -1 if the panel fitter is not present or not in use
+ */
+static int cdv_intel_panel_fitter_pipe(struct drm_device *dev)
+{
+	u32 pfit_control;
+
+	pfit_control = REG_READ(PFIT_CONTROL);
+
+	/* See if the panel fitter is in use */
+	if ((pfit_control & PFIT_ENABLE) == 0)
+		return -1;
+	return (pfit_control >> 29) & 0x3;
+}
+
+static int cdv_intel_crtc_mode_set(struct drm_crtc *crtc,
+			       struct drm_display_mode *mode,
+			       struct drm_display_mode *adjusted_mode,
+			       int x, int y,
+			       struct drm_framebuffer *old_fb)
+{
+	struct drm_device *dev = crtc->dev;
+	struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
+	int pipe = psb_intel_crtc->pipe;
+	int dpll_reg = (pipe == 0) ? DPLL_A : DPLL_B;
+	int dpll_md_reg = (psb_intel_crtc->pipe == 0) ? DPLL_A_MD : DPLL_B_MD;
+	int dspcntr_reg = (pipe == 0) ? DSPACNTR : DSPBCNTR;
+	int pipeconf_reg = (pipe == 0) ? PIPEACONF : PIPEBCONF;
+	int htot_reg = (pipe == 0) ? HTOTAL_A : HTOTAL_B;
+	int hblank_reg = (pipe == 0) ? HBLANK_A : HBLANK_B;
+	int hsync_reg = (pipe == 0) ? HSYNC_A : HSYNC_B;
+	int vtot_reg = (pipe == 0) ? VTOTAL_A : VTOTAL_B;
+	int vblank_reg = (pipe == 0) ? VBLANK_A : VBLANK_B;
+	int vsync_reg = (pipe == 0) ? VSYNC_A : VSYNC_B;
+	int dspsize_reg = (pipe == 0) ? DSPASIZE : DSPBSIZE;
+	int dsppos_reg = (pipe == 0) ? DSPAPOS : DSPBPOS;
+	int pipesrc_reg = (pipe == 0) ? PIPEASRC : PIPEBSRC;
+	int refclk;
+	struct cdv_intel_clock_t clock;
+	u32 dpll = 0, dspcntr, pipeconf;
+	bool ok, is_sdvo = false, is_dvo = false;
+	bool is_crt = false, is_lvds = false, is_tv = false;
+	bool is_hdmi = false;
+	struct drm_mode_config *mode_config = &dev->mode_config;
+	struct drm_connector *connector;
+
+	list_for_each_entry(connector, &mode_config->connector_list, head) {
+		struct psb_intel_encoder *psb_intel_encoder =
+					psb_intel_attached_encoder(connector);
+
+		if (!connector->encoder
+		    || connector->encoder->crtc != crtc)
+			continue;
+
+		switch (psb_intel_encoder->type) {
+		case INTEL_OUTPUT_LVDS:
+			is_lvds = true;
+			break;
+		case INTEL_OUTPUT_SDVO:
+			is_sdvo = true;
+			break;
+		case INTEL_OUTPUT_DVO:
+			is_dvo = true;
+			break;
+		case INTEL_OUTPUT_TVOUT:
+			is_tv = true;
+			break;
+		case INTEL_OUTPUT_ANALOG:
+			is_crt = true;
+			break;
+		case INTEL_OUTPUT_HDMI:
+			is_hdmi = true;
+			break;
+		}
+	}
+
+	refclk = 96000;
+
+	/* Hack selection about ref clk for CRT */
+	/* Select 27MHz as the reference clk for HDMI */
+	if (is_crt || is_hdmi)
+		refclk = 27000;
+
+	drm_mode_debug_printmodeline(adjusted_mode);
+
+	ok = cdv_intel_find_best_PLL(crtc, adjusted_mode->clock, refclk,
+				 &clock);
+	if (!ok) {
+		dev_err(dev->dev, "Couldn't find PLL settings for mode!\n");
+		return 0;
+	}
+
+	dpll = DPLL_VGA_MODE_DIS;
+	if (is_tv) {
+		/* XXX: just matching BIOS for now */
+/*	dpll |= PLL_REF_INPUT_TVCLKINBC; */
+		dpll |= 3;
+	}
+		dpll |= PLL_REF_INPUT_DREFCLK;
+
+	dpll |= DPLL_SYNCLOCK_ENABLE;
+	dpll |= DPLL_VGA_MODE_DIS;
+	if (is_lvds)
+		dpll |= DPLLB_MODE_LVDS;
+	else
+		dpll |= DPLLB_MODE_DAC_SERIAL;
+	/* dpll |= (2 << 11); */
+
+	/* setup pipeconf */
+	pipeconf = REG_READ(pipeconf_reg);
+
+	/* Set up the display plane register */
+	dspcntr = DISPPLANE_GAMMA_ENABLE;
+
+	if (pipe == 0)
+		dspcntr |= DISPPLANE_SEL_PIPE_A;
+	else
+		dspcntr |= DISPPLANE_SEL_PIPE_B;
+
+	dspcntr |= DISPLAY_PLANE_ENABLE;
+	pipeconf |= PIPEACONF_ENABLE;
+
+	REG_WRITE(dpll_reg, dpll | DPLL_VGA_MODE_DIS | DPLL_SYNCLOCK_ENABLE);
+	REG_READ(dpll_reg);
+
+	cdv_dpll_set_clock_cdv(dev, crtc, &clock);
+
+	udelay(150);
+
+
+	/* The LVDS pin pair needs to be on before the DPLLs are enabled.
+	 * This is an exception to the general rule that mode_set doesn't turn
+	 * things on.
+	 */
+	if (is_lvds) {
+		u32 lvds = REG_READ(LVDS);
+
+		lvds |=
+		    LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP |
+		    LVDS_PIPEB_SELECT;
+		/* Set the B0-B3 data pairs corresponding to
+		 * whether we're going to
+		 * set the DPLLs for dual-channel mode or not.
+		 */
+		if (clock.p2 == 7)
+			lvds |= LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP;
+		else
+			lvds &= ~(LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP);
+
+		/* It would be nice to set 24 vs 18-bit mode (LVDS_A3_POWER_UP)
+		 * appropriately here, but we need to look more
+		 * thoroughly into how panels behave in the two modes.
+		 */
+
+		REG_WRITE(LVDS, lvds);
+		REG_READ(LVDS);
+	}
+
+	dpll |= DPLL_VCO_ENABLE;
+
+	/* Disable the panel fitter if it was on our pipe */
+	if (cdv_intel_panel_fitter_pipe(dev) == pipe)
+		REG_WRITE(PFIT_CONTROL, 0);
+
+	DRM_DEBUG_KMS("Mode for pipe %c:\n", pipe == 0 ? 'A' : 'B');
+	drm_mode_debug_printmodeline(mode);
+
+	REG_WRITE(dpll_reg,
+		(REG_READ(dpll_reg) & ~DPLL_LOCK) | DPLL_VCO_ENABLE);
+	REG_READ(dpll_reg);
+	/* Wait for the clocks to stabilize. */
+	udelay(150); /* 42 usec w/o calibration, 110 with.  rounded up. */
+
+	if (!(REG_READ(dpll_reg) & DPLL_LOCK)) {
+		dev_err(dev->dev, "Failed to get DPLL lock\n");
+		return -EBUSY;
+	}
+
+	{
+		int sdvo_pixel_multiply = adjusted_mode->clock / mode->clock;
+		REG_WRITE(dpll_md_reg, (0 << DPLL_MD_UDI_DIVIDER_SHIFT) | ((sdvo_pixel_multiply - 1) << DPLL_MD_UDI_MULTIPLIER_SHIFT));
+	}
+
+	REG_WRITE(htot_reg, (adjusted_mode->crtc_hdisplay - 1) |
+		  ((adjusted_mode->crtc_htotal - 1) << 16));
+	REG_WRITE(hblank_reg, (adjusted_mode->crtc_hblank_start - 1) |
+		  ((adjusted_mode->crtc_hblank_end - 1) << 16));
+	REG_WRITE(hsync_reg, (adjusted_mode->crtc_hsync_start - 1) |
+		  ((adjusted_mode->crtc_hsync_end - 1) << 16));
+	REG_WRITE(vtot_reg, (adjusted_mode->crtc_vdisplay - 1) |
+		  ((adjusted_mode->crtc_vtotal - 1) << 16));
+	REG_WRITE(vblank_reg, (adjusted_mode->crtc_vblank_start - 1) |
+		  ((adjusted_mode->crtc_vblank_end - 1) << 16));
+	REG_WRITE(vsync_reg, (adjusted_mode->crtc_vsync_start - 1) |
+		  ((adjusted_mode->crtc_vsync_end - 1) << 16));
+	/* pipesrc and dspsize control the size that is scaled from,
+	 * which should always be the user's requested size.
+	 */
+	REG_WRITE(dspsize_reg,
+		  ((mode->vdisplay - 1) << 16) | (mode->hdisplay - 1));
+	REG_WRITE(dsppos_reg, 0);
+	REG_WRITE(pipesrc_reg,
+		  ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1));
+	REG_WRITE(pipeconf_reg, pipeconf);
+	REG_READ(pipeconf_reg);
+
+	cdv_intel_wait_for_vblank(dev);
+
+	REG_WRITE(dspcntr_reg, dspcntr);
+
+	/* Flush the plane changes */
+	{
+		struct drm_crtc_helper_funcs *crtc_funcs =
+		    crtc->helper_private;
+		crtc_funcs->mode_set_base(crtc, x, y, old_fb);
+	}
+
+	cdv_intel_wait_for_vblank(dev);
+
+	return 0;
+}
+
+/** Loads the palette/gamma unit for the CRTC with the prepared values */
+void cdv_intel_crtc_load_lut(struct drm_crtc *crtc)
+{
+	struct drm_device *dev = crtc->dev;
+	struct drm_psb_private *dev_priv =
+				(struct drm_psb_private *)dev->dev_private;
+	struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
+	int palreg = PALETTE_A;
+	int i;
+
+	/* The clocks have to be on to load the palette. */
+	if (!crtc->enabled)
+		return;
+
+	switch (psb_intel_crtc->pipe) {
+	case 0:
+		break;
+	case 1:
+		palreg = PALETTE_B;
+		break;
+	case 2:
+		palreg = PALETTE_C;
+		break;
+	default:
+		dev_err(dev->dev, "Illegal Pipe Number.\n");
+		return;
+	}
+
+	if (gma_power_begin(dev, false)) {
+		for (i = 0; i < 256; i++) {
+			REG_WRITE(palreg + 4 * i,
+				  ((psb_intel_crtc->lut_r[i] +
+				  psb_intel_crtc->lut_adj[i]) << 16) |
+				  ((psb_intel_crtc->lut_g[i] +
+				  psb_intel_crtc->lut_adj[i]) << 8) |
+				  (psb_intel_crtc->lut_b[i] +
+				  psb_intel_crtc->lut_adj[i]));
+		}
+		gma_power_end(dev);
+	} else {
+		for (i = 0; i < 256; i++) {
+			dev_priv->save_palette_a[i] =
+				  ((psb_intel_crtc->lut_r[i] +
+				  psb_intel_crtc->lut_adj[i]) << 16) |
+				  ((psb_intel_crtc->lut_g[i] +
+				  psb_intel_crtc->lut_adj[i]) << 8) |
+				  (psb_intel_crtc->lut_b[i] +
+				  psb_intel_crtc->lut_adj[i]);
+		}
+
+	}
+}
+
+/**
+ * Save HW states of giving crtc
+ */
+static void cdv_intel_crtc_save(struct drm_crtc *crtc)
+{
+	struct drm_device *dev = crtc->dev;
+	/* struct drm_psb_private *dev_priv =
+			(struct drm_psb_private *)dev->dev_private; */
+	struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
+	struct psb_intel_crtc_state *crtc_state = psb_intel_crtc->crtc_state;
+	int pipeA = (psb_intel_crtc->pipe == 0);
+	uint32_t paletteReg;
+	int i;
+
+	if (!crtc_state) {
+		dev_dbg(dev->dev, "No CRTC state found\n");
+		return;
+	}
+
+	crtc_state->saveDSPCNTR = REG_READ(pipeA ? DSPACNTR : DSPBCNTR);
+	crtc_state->savePIPECONF = REG_READ(pipeA ? PIPEACONF : PIPEBCONF);
+	crtc_state->savePIPESRC = REG_READ(pipeA ? PIPEASRC : PIPEBSRC);
+	crtc_state->saveFP0 = REG_READ(pipeA ? FPA0 : FPB0);
+	crtc_state->saveFP1 = REG_READ(pipeA ? FPA1 : FPB1);
+	crtc_state->saveDPLL = REG_READ(pipeA ? DPLL_A : DPLL_B);
+	crtc_state->saveHTOTAL = REG_READ(pipeA ? HTOTAL_A : HTOTAL_B);
+	crtc_state->saveHBLANK = REG_READ(pipeA ? HBLANK_A : HBLANK_B);
+	crtc_state->saveHSYNC = REG_READ(pipeA ? HSYNC_A : HSYNC_B);
+	crtc_state->saveVTOTAL = REG_READ(pipeA ? VTOTAL_A : VTOTAL_B);
+	crtc_state->saveVBLANK = REG_READ(pipeA ? VBLANK_A : VBLANK_B);
+	crtc_state->saveVSYNC = REG_READ(pipeA ? VSYNC_A : VSYNC_B);
+	crtc_state->saveDSPSTRIDE = REG_READ(pipeA ? DSPASTRIDE : DSPBSTRIDE);
+
+	/*NOTE: DSPSIZE DSPPOS only for psb*/
+	crtc_state->saveDSPSIZE = REG_READ(pipeA ? DSPASIZE : DSPBSIZE);
+	crtc_state->saveDSPPOS = REG_READ(pipeA ? DSPAPOS : DSPBPOS);
+
+	crtc_state->saveDSPBASE = REG_READ(pipeA ? DSPABASE : DSPBBASE);
+
+	DRM_DEBUG("(%x %x %x %x %x %x %x %x %x %x %x %x %x %x %x %x)\n",
+			crtc_state->saveDSPCNTR,
+			crtc_state->savePIPECONF,
+			crtc_state->savePIPESRC,
+			crtc_state->saveFP0,
+			crtc_state->saveFP1,
+			crtc_state->saveDPLL,
+			crtc_state->saveHTOTAL,
+			crtc_state->saveHBLANK,
+			crtc_state->saveHSYNC,
+			crtc_state->saveVTOTAL,
+			crtc_state->saveVBLANK,
+			crtc_state->saveVSYNC,
+			crtc_state->saveDSPSTRIDE,
+			crtc_state->saveDSPSIZE,
+			crtc_state->saveDSPPOS,
+			crtc_state->saveDSPBASE
+		);
+
+	paletteReg = pipeA ? PALETTE_A : PALETTE_B;
+	for (i = 0; i < 256; ++i)
+		crtc_state->savePalette[i] = REG_READ(paletteReg + (i << 2));
+}
+
+/**
+ * Restore HW states of giving crtc
+ */
+static void cdv_intel_crtc_restore(struct drm_crtc *crtc)
+{
+	struct drm_device *dev = crtc->dev;
+	/* struct drm_psb_private * dev_priv =
+				(struct drm_psb_private *)dev->dev_private; */
+	struct psb_intel_crtc *psb_intel_crtc =  to_psb_intel_crtc(crtc);
+	struct psb_intel_crtc_state *crtc_state = psb_intel_crtc->crtc_state;
+	/* struct drm_crtc_helper_funcs * crtc_funcs = crtc->helper_private; */
+	int pipeA = (psb_intel_crtc->pipe == 0);
+	uint32_t paletteReg;
+	int i;
+
+	if (!crtc_state) {
+		dev_dbg(dev->dev, "No crtc state\n");
+		return;
+	}
+
+	DRM_DEBUG(
+		"current:(%x %x %x %x %x %x %x %x %x %x %x %x %x %x %x %x)\n",
+		REG_READ(pipeA ? DSPACNTR : DSPBCNTR),
+		REG_READ(pipeA ? PIPEACONF : PIPEBCONF),
+		REG_READ(pipeA ? PIPEASRC : PIPEBSRC),
+		REG_READ(pipeA ? FPA0 : FPB0),
+		REG_READ(pipeA ? FPA1 : FPB1),
+		REG_READ(pipeA ? DPLL_A : DPLL_B),
+		REG_READ(pipeA ? HTOTAL_A : HTOTAL_B),
+		REG_READ(pipeA ? HBLANK_A : HBLANK_B),
+		REG_READ(pipeA ? HSYNC_A : HSYNC_B),
+		REG_READ(pipeA ? VTOTAL_A : VTOTAL_B),
+		REG_READ(pipeA ? VBLANK_A : VBLANK_B),
+		REG_READ(pipeA ? VSYNC_A : VSYNC_B),
+		REG_READ(pipeA ? DSPASTRIDE : DSPBSTRIDE),
+		REG_READ(pipeA ? DSPASIZE : DSPBSIZE),
+		REG_READ(pipeA ? DSPAPOS : DSPBPOS),
+		REG_READ(pipeA ? DSPABASE : DSPBBASE)
+		);
+
+	DRM_DEBUG(
+		"saved: (%x %x %x %x %x %x %x %x %x %x %x %x %x %x %x %x)\n",
+		crtc_state->saveDSPCNTR,
+		crtc_state->savePIPECONF,
+		crtc_state->savePIPESRC,
+		crtc_state->saveFP0,
+		crtc_state->saveFP1,
+		crtc_state->saveDPLL,
+		crtc_state->saveHTOTAL,
+		crtc_state->saveHBLANK,
+		crtc_state->saveHSYNC,
+		crtc_state->saveVTOTAL,
+		crtc_state->saveVBLANK,
+		crtc_state->saveVSYNC,
+		crtc_state->saveDSPSTRIDE,
+		crtc_state->saveDSPSIZE,
+		crtc_state->saveDSPPOS,
+		crtc_state->saveDSPBASE
+		);
+
+
+	if (crtc_state->saveDPLL & DPLL_VCO_ENABLE) {
+		REG_WRITE(pipeA ? DPLL_A : DPLL_B,
+			crtc_state->saveDPLL & ~DPLL_VCO_ENABLE);
+		REG_READ(pipeA ? DPLL_A : DPLL_B);
+		DRM_DEBUG("write dpll: %x\n",
+				REG_READ(pipeA ? DPLL_A : DPLL_B));
+		udelay(150);
+	}
+
+	REG_WRITE(pipeA ? FPA0 : FPB0, crtc_state->saveFP0);
+	REG_READ(pipeA ? FPA0 : FPB0);
+
+	REG_WRITE(pipeA ? FPA1 : FPB1, crtc_state->saveFP1);
+	REG_READ(pipeA ? FPA1 : FPB1);
+
+	REG_WRITE(pipeA ? DPLL_A : DPLL_B, crtc_state->saveDPLL);
+	REG_READ(pipeA ? DPLL_A : DPLL_B);
+	udelay(150);
+
+	REG_WRITE(pipeA ? HTOTAL_A : HTOTAL_B, crtc_state->saveHTOTAL);
+	REG_WRITE(pipeA ? HBLANK_A : HBLANK_B, crtc_state->saveHBLANK);
+	REG_WRITE(pipeA ? HSYNC_A : HSYNC_B, crtc_state->saveHSYNC);
+	REG_WRITE(pipeA ? VTOTAL_A : VTOTAL_B, crtc_state->saveVTOTAL);
+	REG_WRITE(pipeA ? VBLANK_A : VBLANK_B, crtc_state->saveVBLANK);
+	REG_WRITE(pipeA ? VSYNC_A : VSYNC_B, crtc_state->saveVSYNC);
+	REG_WRITE(pipeA ? DSPASTRIDE : DSPBSTRIDE, crtc_state->saveDSPSTRIDE);
+
+	REG_WRITE(pipeA ? DSPASIZE : DSPBSIZE, crtc_state->saveDSPSIZE);
+	REG_WRITE(pipeA ? DSPAPOS : DSPBPOS, crtc_state->saveDSPPOS);
+
+	REG_WRITE(pipeA ? PIPEASRC : PIPEBSRC, crtc_state->savePIPESRC);
+	REG_WRITE(pipeA ? DSPABASE : DSPBBASE, crtc_state->saveDSPBASE);
+	REG_WRITE(pipeA ? PIPEACONF : PIPEBCONF, crtc_state->savePIPECONF);
+
+	cdv_intel_wait_for_vblank(dev);
+
+	REG_WRITE(pipeA ? DSPACNTR : DSPBCNTR, crtc_state->saveDSPCNTR);
+	REG_WRITE(pipeA ? DSPABASE : DSPBBASE, crtc_state->saveDSPBASE);
+
+	cdv_intel_wait_for_vblank(dev);
+
+	paletteReg = pipeA ? PALETTE_A : PALETTE_B;
+	for (i = 0; i < 256; ++i)
+		REG_WRITE(paletteReg + (i << 2), crtc_state->savePalette[i]);
+}
+
+static int cdv_intel_crtc_cursor_set(struct drm_crtc *crtc,
+				 struct drm_file *file_priv,
+				 uint32_t handle,
+				 uint32_t width, uint32_t height)
+{
+	struct drm_device *dev = crtc->dev;
+	struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
+	int pipe = psb_intel_crtc->pipe;
+	uint32_t control = (pipe == 0) ? CURACNTR : CURBCNTR;
+	uint32_t base = (pipe == 0) ? CURABASE : CURBBASE;
+	uint32_t temp;
+	size_t addr = 0;
+	struct gtt_range *gt;
+	struct drm_gem_object *obj;
+	int ret;
+
+	/* if we want to turn of the cursor ignore width and height */
+	if (!handle) {
+		/* turn off the cursor */
+		temp = CURSOR_MODE_DISABLE;
+
+		if (gma_power_begin(dev, false)) {
+			REG_WRITE(control, temp);
+			REG_WRITE(base, 0);
+			gma_power_end(dev);
+		}
+
+		/* unpin the old GEM object */
+		if (psb_intel_crtc->cursor_obj) {
+			gt = container_of(psb_intel_crtc->cursor_obj,
+							struct gtt_range, gem);
+			psb_gtt_unpin(gt);
+			drm_gem_object_unreference(psb_intel_crtc->cursor_obj);
+			psb_intel_crtc->cursor_obj = NULL;
+		}
+
+		return 0;
+	}
+
+	/* Currently we only support 64x64 cursors */
+	if (width != 64 || height != 64) {
+		dev_dbg(dev->dev, "we currently only support 64x64 cursors\n");
+		return -EINVAL;
+	}
+
+	obj = drm_gem_object_lookup(dev, file_priv, handle);
+	if (!obj)
+		return -ENOENT;
+
+	if (obj->size < width * height * 4) {
+		dev_dbg(dev->dev, "buffer is to small\n");
+		return -ENOMEM;
+	}
+
+	gt = container_of(obj, struct gtt_range, gem);
+
+	/* Pin the memory into the GTT */
+	ret = psb_gtt_pin(gt);
+	if (ret) {
+		dev_err(dev->dev, "Can not pin down handle 0x%x\n", handle);
+		return ret;
+	}
+
+	addr = gt->offset;	/* Or resource.start ??? */
+
+	psb_intel_crtc->cursor_addr = addr;
+
+	temp = 0;
+	/* set the pipe for the cursor */
+	temp |= (pipe << 28);
+	temp |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE;
+
+	if (gma_power_begin(dev, false)) {
+		REG_WRITE(control, temp);
+		REG_WRITE(base, addr);
+		gma_power_end(dev);
+	}
+
+	/* unpin the old GEM object */
+	if (psb_intel_crtc->cursor_obj) {
+		gt = container_of(psb_intel_crtc->cursor_obj,
+							struct gtt_range, gem);
+		psb_gtt_unpin(gt);
+		drm_gem_object_unreference(psb_intel_crtc->cursor_obj);
+		psb_intel_crtc->cursor_obj = obj;
+	}
+	return 0;
+}
+
+static int cdv_intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
+{
+	struct drm_device *dev = crtc->dev;
+	struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
+	int pipe = psb_intel_crtc->pipe;
+	uint32_t temp = 0;
+	uint32_t adder;
+
+
+	if (x < 0) {
+		temp |= (CURSOR_POS_SIGN << CURSOR_X_SHIFT);
+		x = -x;
+	}
+	if (y < 0) {
+		temp |= (CURSOR_POS_SIGN << CURSOR_Y_SHIFT);
+		y = -y;
+	}
+
+	temp |= ((x & CURSOR_POS_MASK) << CURSOR_X_SHIFT);
+	temp |= ((y & CURSOR_POS_MASK) << CURSOR_Y_SHIFT);
+
+	adder = psb_intel_crtc->cursor_addr;
+
+	if (gma_power_begin(dev, false)) {
+		REG_WRITE((pipe == 0) ? CURAPOS : CURBPOS, temp);
+		REG_WRITE((pipe == 0) ? CURABASE : CURBBASE, adder);
+		gma_power_end(dev);
+	}
+	return 0;
+}
+
+static void cdv_intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red,
+			 u16 *green, u16 *blue, uint32_t start, uint32_t size)
+{
+	struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
+	int i;
+	int end = (start + size > 256) ? 256 : start + size;
+
+	for (i = start; i < end; i++) {
+		psb_intel_crtc->lut_r[i] = red[i] >> 8;
+		psb_intel_crtc->lut_g[i] = green[i] >> 8;
+		psb_intel_crtc->lut_b[i] = blue[i] >> 8;
+	}
+
+	cdv_intel_crtc_load_lut(crtc);
+}
+
+static int cdv_crtc_set_config(struct drm_mode_set *set)
+{
+	int ret = 0;
+	struct drm_device *dev = set->crtc->dev;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+
+	if (!dev_priv->rpm_enabled)
+		return drm_crtc_helper_set_config(set);
+
+	pm_runtime_forbid(&dev->pdev->dev);
+
+	ret = drm_crtc_helper_set_config(set);
+
+	pm_runtime_allow(&dev->pdev->dev);
+
+	return ret;
+}
+
+/** Derive the pixel clock for the given refclk and divisors for 8xx chips. */
+
+/* FIXME: why are we using this, should it be cdv_ in this tree ? */
+
+static void i8xx_clock(int refclk, struct cdv_intel_clock_t *clock)
+{
+	clock->m = 5 * (clock->m1 + 2) + (clock->m2 + 2);
+	clock->p = clock->p1 * clock->p2;
+	clock->vco = refclk * clock->m / (clock->n + 2);
+	clock->dot = clock->vco / clock->p;
+}
+
+/* Returns the clock of the currently programmed mode of the given pipe. */
+static int cdv_intel_crtc_clock_get(struct drm_device *dev,
+				struct drm_crtc *crtc)
+{
+	struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
+	int pipe = psb_intel_crtc->pipe;
+	u32 dpll;
+	u32 fp;
+	struct cdv_intel_clock_t clock;
+	bool is_lvds;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+
+	if (gma_power_begin(dev, false)) {
+		dpll = REG_READ((pipe == 0) ? DPLL_A : DPLL_B);
+		if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0)
+			fp = REG_READ((pipe == 0) ? FPA0 : FPB0);
+		else
+			fp = REG_READ((pipe == 0) ? FPA1 : FPB1);
+		is_lvds = (pipe == 1) && (REG_READ(LVDS) & LVDS_PORT_EN);
+		gma_power_end(dev);
+	} else {
+		dpll = (pipe == 0) ?
+			dev_priv->saveDPLL_A : dev_priv->saveDPLL_B;
+
+		if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0)
+			fp = (pipe == 0) ?
+				dev_priv->saveFPA0 :
+				dev_priv->saveFPB0;
+		else
+			fp = (pipe == 0) ?
+				dev_priv->saveFPA1 :
+				dev_priv->saveFPB1;
+
+		is_lvds = (pipe == 1) && (dev_priv->saveLVDS & LVDS_PORT_EN);
+	}
+
+	clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT;
+	clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT;
+	clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT;
+
+	if (is_lvds) {
+		clock.p1 =
+		    ffs((dpll &
+			 DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >>
+			DPLL_FPA01_P1_POST_DIV_SHIFT);
+		if (clock.p1 == 0) {
+			clock.p1 = 4;
+			dev_err(dev->dev, "PLL %d\n", dpll);
+		}
+		clock.p2 = 14;
+
+		if ((dpll & PLL_REF_INPUT_MASK) ==
+		    PLLB_REF_INPUT_SPREADSPECTRUMIN) {
+			/* XXX: might not be 66MHz */
+			i8xx_clock(66000, &clock);
+		} else
+			i8xx_clock(48000, &clock);
+	} else {
+		if (dpll & PLL_P1_DIVIDE_BY_TWO)
+			clock.p1 = 2;
+		else {
+			clock.p1 =
+			    ((dpll &
+			      DPLL_FPA01_P1_POST_DIV_MASK_I830) >>
+			     DPLL_FPA01_P1_POST_DIV_SHIFT) + 2;
+		}
+		if (dpll & PLL_P2_DIVIDE_BY_4)
+			clock.p2 = 4;
+		else
+			clock.p2 = 2;
+
+		i8xx_clock(48000, &clock);
+	}
+
+	/* XXX: It would be nice to validate the clocks, but we can't reuse
+	 * i830PllIsValid() because it relies on the xf86_config connector
+	 * configuration being accurate, which it isn't necessarily.
+	 */
+
+	return clock.dot;
+}
+
+/** Returns the currently programmed mode of the given pipe. */
+struct drm_display_mode *cdv_intel_crtc_mode_get(struct drm_device *dev,
+					     struct drm_crtc *crtc)
+{
+	struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
+	int pipe = psb_intel_crtc->pipe;
+	struct drm_display_mode *mode;
+	int htot;
+	int hsync;
+	int vtot;
+	int vsync;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+
+	if (gma_power_begin(dev, false)) {
+		htot = REG_READ((pipe == 0) ? HTOTAL_A : HTOTAL_B);
+		hsync = REG_READ((pipe == 0) ? HSYNC_A : HSYNC_B);
+		vtot = REG_READ((pipe == 0) ? VTOTAL_A : VTOTAL_B);
+		vsync = REG_READ((pipe == 0) ? VSYNC_A : VSYNC_B);
+		gma_power_end(dev);
+	} else {
+		htot = (pipe == 0) ?
+			dev_priv->saveHTOTAL_A : dev_priv->saveHTOTAL_B;
+		hsync = (pipe == 0) ?
+			dev_priv->saveHSYNC_A : dev_priv->saveHSYNC_B;
+		vtot = (pipe == 0) ?
+			dev_priv->saveVTOTAL_A : dev_priv->saveVTOTAL_B;
+		vsync = (pipe == 0) ?
+			dev_priv->saveVSYNC_A : dev_priv->saveVSYNC_B;
+	}
+
+	mode = kzalloc(sizeof(*mode), GFP_KERNEL);
+	if (!mode)
+		return NULL;
+
+	mode->clock = cdv_intel_crtc_clock_get(dev, crtc);
+	mode->hdisplay = (htot & 0xffff) + 1;
+	mode->htotal = ((htot & 0xffff0000) >> 16) + 1;
+	mode->hsync_start = (hsync & 0xffff) + 1;
+	mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1;
+	mode->vdisplay = (vtot & 0xffff) + 1;
+	mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1;
+	mode->vsync_start = (vsync & 0xffff) + 1;
+	mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1;
+
+	drm_mode_set_name(mode);
+	drm_mode_set_crtcinfo(mode, 0);
+
+	return mode;
+}
+
+static void cdv_intel_crtc_destroy(struct drm_crtc *crtc)
+{
+	struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
+
+	kfree(psb_intel_crtc->crtc_state);
+	drm_crtc_cleanup(crtc);
+	kfree(psb_intel_crtc);
+}
+
+const struct drm_crtc_helper_funcs cdv_intel_helper_funcs = {
+	.dpms = cdv_intel_crtc_dpms,
+	.mode_fixup = cdv_intel_crtc_mode_fixup,
+	.mode_set = cdv_intel_crtc_mode_set,
+	.mode_set_base = cdv_intel_pipe_set_base,
+	.prepare = cdv_intel_crtc_prepare,
+	.commit = cdv_intel_crtc_commit,
+};
+
+const struct drm_crtc_funcs cdv_intel_crtc_funcs = {
+	.save = cdv_intel_crtc_save,
+	.restore = cdv_intel_crtc_restore,
+	.cursor_set = cdv_intel_crtc_cursor_set,
+	.cursor_move = cdv_intel_crtc_cursor_move,
+	.gamma_set = cdv_intel_crtc_gamma_set,
+	.set_config = cdv_crtc_set_config,
+	.destroy = cdv_intel_crtc_destroy,
+};
+
+/*
+ * Set the default value of cursor control and base register
+ * to zero. This is a workaround for h/w defect on oaktrail
+ */
+void cdv_intel_cursor_init(struct drm_device *dev, int pipe)
+{
+	uint32_t control;
+	uint32_t base;
+
+	switch (pipe) {
+	case 0:
+		control = CURACNTR;
+		base = CURABASE;
+		break;
+	case 1:
+		control = CURBCNTR;
+		base = CURBBASE;
+		break;
+	case 2:
+		control = CURCCNTR;
+		base = CURCBASE;
+		break;
+	default:
+		return;
+	}
+
+	REG_WRITE(control, 0);
+	REG_WRITE(base, 0);
+}
+
diff --git a/drivers/gpu/drm/gma500/cdv_intel_hdmi.c b/drivers/gpu/drm/gma500/cdv_intel_hdmi.c
new file mode 100644
index 000000000000..50d7cfb51662
--- /dev/null
+++ b/drivers/gpu/drm/gma500/cdv_intel_hdmi.c
@@ -0,0 +1,394 @@
+/*
+ * Copyright © 2006-2011 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *	jim liu <jim.liu@intel.com>
+ *
+ * FIXME:
+ *	We should probably make this generic and share it with Medfield
+ */
+
+#include <drm/drmP.h>
+#include <drm/drm.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_edid.h>
+#include "psb_intel_drv.h"
+#include "psb_drv.h"
+#include "psb_intel_reg.h"
+#include <linux/pm_runtime.h>
+
+/* hdmi control bits */
+#define HDMI_NULL_PACKETS_DURING_VSYNC	(1 << 9)
+#define HDMI_BORDER_ENABLE		(1 << 7)
+#define HDMI_AUDIO_ENABLE		(1 << 6)
+#define HDMI_VSYNC_ACTIVE_HIGH		(1 << 4)
+#define HDMI_HSYNC_ACTIVE_HIGH		(1 << 3)
+/* hdmi-b control bits */
+#define	HDMIB_PIPE_B_SELECT		(1 << 30)
+
+
+struct mid_intel_hdmi_priv {
+	u32 hdmi_reg;
+	u32 save_HDMIB;
+	bool has_hdmi_sink;
+	bool has_hdmi_audio;
+	/* Should set this when detect hotplug */
+	bool hdmi_device_connected;
+	struct mdfld_hdmi_i2c *i2c_bus;
+	struct i2c_adapter *hdmi_i2c_adapter;	/* for control functions */
+	struct drm_device *dev;
+};
+
+static void cdv_hdmi_mode_set(struct drm_encoder *encoder,
+			struct drm_display_mode *mode,
+			struct drm_display_mode *adjusted_mode)
+{
+	struct drm_device *dev = encoder->dev;
+	struct psb_intel_encoder *psb_intel_encoder = to_psb_intel_encoder(encoder);
+	struct mid_intel_hdmi_priv *hdmi_priv = psb_intel_encoder->dev_priv;
+	u32 hdmib;
+	struct drm_crtc *crtc = encoder->crtc;
+	struct psb_intel_crtc *intel_crtc = to_psb_intel_crtc(crtc);
+
+	hdmib = (2 << 10);
+
+	if (adjusted_mode->flags & DRM_MODE_FLAG_PVSYNC)
+		hdmib |= HDMI_VSYNC_ACTIVE_HIGH;
+	if (adjusted_mode->flags & DRM_MODE_FLAG_PHSYNC)
+		hdmib |= HDMI_HSYNC_ACTIVE_HIGH;
+
+	if (intel_crtc->pipe == 1)
+		hdmib |= HDMIB_PIPE_B_SELECT;
+
+	if (hdmi_priv->has_hdmi_audio) {
+		hdmib |= HDMI_AUDIO_ENABLE;
+		hdmib |= HDMI_NULL_PACKETS_DURING_VSYNC;
+	}
+
+	REG_WRITE(hdmi_priv->hdmi_reg, hdmib);
+	REG_READ(hdmi_priv->hdmi_reg);
+}
+
+static bool cdv_hdmi_mode_fixup(struct drm_encoder *encoder,
+				  struct drm_display_mode *mode,
+				  struct drm_display_mode *adjusted_mode)
+{
+	return true;
+}
+
+static void cdv_hdmi_dpms(struct drm_encoder *encoder, int mode)
+{
+	struct drm_device *dev = encoder->dev;
+	struct psb_intel_encoder *psb_intel_encoder =
+						to_psb_intel_encoder(encoder);
+	struct mid_intel_hdmi_priv *hdmi_priv = psb_intel_encoder->dev_priv;
+	u32 hdmib;
+
+	hdmib = REG_READ(hdmi_priv->hdmi_reg);
+
+	if (mode != DRM_MODE_DPMS_ON)
+		REG_WRITE(hdmi_priv->hdmi_reg, hdmib & ~HDMIB_PORT_EN);
+	else
+		REG_WRITE(hdmi_priv->hdmi_reg, hdmib | HDMIB_PORT_EN);
+	REG_READ(hdmi_priv->hdmi_reg);
+}
+
+static void cdv_hdmi_save(struct drm_connector *connector)
+{
+	struct drm_device *dev = connector->dev;
+	struct psb_intel_encoder *psb_intel_encoder =
+					psb_intel_attached_encoder(connector);
+	struct mid_intel_hdmi_priv *hdmi_priv = psb_intel_encoder->dev_priv;
+
+	hdmi_priv->save_HDMIB = REG_READ(hdmi_priv->hdmi_reg);
+}
+
+static void cdv_hdmi_restore(struct drm_connector *connector)
+{
+	struct drm_device *dev = connector->dev;
+	struct psb_intel_encoder *psb_intel_encoder =
+					psb_intel_attached_encoder(connector);
+	struct mid_intel_hdmi_priv *hdmi_priv = psb_intel_encoder->dev_priv;
+
+	REG_WRITE(hdmi_priv->hdmi_reg, hdmi_priv->save_HDMIB);
+	REG_READ(hdmi_priv->hdmi_reg);
+}
+
+static enum drm_connector_status cdv_hdmi_detect(
+				struct drm_connector *connector, bool force)
+{
+	struct psb_intel_encoder *psb_intel_encoder =
+					psb_intel_attached_encoder(connector);
+	struct psb_intel_connector *psb_intel_connector =
+					to_psb_intel_connector(connector);
+	struct mid_intel_hdmi_priv *hdmi_priv = psb_intel_encoder->dev_priv;
+	struct edid *edid = NULL;
+	enum drm_connector_status status = connector_status_disconnected;
+
+	edid = drm_get_edid(connector, &psb_intel_encoder->i2c_bus->adapter);
+
+	hdmi_priv->has_hdmi_sink = false;
+	hdmi_priv->has_hdmi_audio = false;
+	if (edid) {
+		if (edid->input & DRM_EDID_INPUT_DIGITAL) {
+			status = connector_status_connected;
+			hdmi_priv->has_hdmi_sink =
+						drm_detect_hdmi_monitor(edid);
+			hdmi_priv->has_hdmi_audio =
+						drm_detect_monitor_audio(edid);
+		}
+
+		psb_intel_connector->base.display_info.raw_edid = NULL;
+		kfree(edid);
+	}
+	return status;
+}
+
+static int cdv_hdmi_set_property(struct drm_connector *connector,
+				       struct drm_property *property,
+				       uint64_t value)
+{
+	struct drm_encoder *encoder = connector->encoder;
+
+	if (!strcmp(property->name, "scaling mode") && encoder) {
+		struct psb_intel_crtc *crtc = to_psb_intel_crtc(encoder->crtc);
+		bool centre;
+		uint64_t curValue;
+
+		if (!crtc)
+			return -1;
+
+		switch (value) {
+		case DRM_MODE_SCALE_FULLSCREEN:
+			break;
+		case DRM_MODE_SCALE_NO_SCALE:
+			break;
+		case DRM_MODE_SCALE_ASPECT:
+			break;
+		default:
+			return -1;
+		}
+
+		if (drm_connector_property_get_value(connector,
+							property, &curValue))
+			return -1;
+
+		if (curValue == value)
+			return 0;
+
+		if (drm_connector_property_set_value(connector,
+							property, value))
+			return -1;
+
+		centre = (curValue == DRM_MODE_SCALE_NO_SCALE) ||
+			(value == DRM_MODE_SCALE_NO_SCALE);
+
+		if (crtc->saved_mode.hdisplay != 0 &&
+		    crtc->saved_mode.vdisplay != 0) {
+			if (centre) {
+				if (!drm_crtc_helper_set_mode(encoder->crtc, &crtc->saved_mode,
+					    encoder->crtc->x, encoder->crtc->y, encoder->crtc->fb))
+					return -1;
+			} else {
+				struct drm_encoder_helper_funcs *helpers
+						    = encoder->helper_private;
+				helpers->mode_set(encoder, &crtc->saved_mode,
+					     &crtc->saved_adjusted_mode);
+			}
+		}
+	}
+	return 0;
+}
+
+/*
+ * Return the list of HDMI DDC modes if available.
+ */
+static int cdv_hdmi_get_modes(struct drm_connector *connector)
+{
+	struct psb_intel_encoder *psb_intel_encoder =
+					psb_intel_attached_encoder(connector);
+	struct edid *edid = NULL;
+	int ret = 0;
+
+	edid = drm_get_edid(connector, &psb_intel_encoder->i2c_bus->adapter);
+	if (edid) {
+		drm_mode_connector_update_edid_property(connector, edid);
+		ret = drm_add_edid_modes(connector, edid);
+		kfree(edid);
+	}
+	return ret;
+}
+
+static int cdv_hdmi_mode_valid(struct drm_connector *connector,
+				 struct drm_display_mode *mode)
+{
+
+	if (mode->clock > 165000)
+		return MODE_CLOCK_HIGH;
+	if (mode->clock < 20000)
+		return MODE_CLOCK_HIGH;
+
+	/* just in case */
+	if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
+		return MODE_NO_DBLESCAN;
+
+	/* just in case */
+	if (mode->flags & DRM_MODE_FLAG_INTERLACE)
+		return MODE_NO_INTERLACE;
+
+	/*
+	 * FIXME: for now we limit the size to 1680x1050 on CDV, otherwise it
+	 * will go beyond the stolen memory size allocated to the framebuffer
+	 */
+	if (mode->hdisplay > 1680)
+		return MODE_PANEL;
+	if (mode->vdisplay > 1050)
+		return MODE_PANEL;
+	return MODE_OK;
+}
+
+static void cdv_hdmi_destroy(struct drm_connector *connector)
+{
+	struct psb_intel_encoder *psb_intel_encoder =
+					psb_intel_attached_encoder(connector);
+
+	if (psb_intel_encoder->i2c_bus)
+		psb_intel_i2c_destroy(psb_intel_encoder->i2c_bus);
+	drm_sysfs_connector_remove(connector);
+	drm_connector_cleanup(connector);
+	kfree(connector);
+}
+
+static const struct drm_encoder_helper_funcs cdv_hdmi_helper_funcs = {
+	.dpms = cdv_hdmi_dpms,
+	.mode_fixup = cdv_hdmi_mode_fixup,
+	.prepare = psb_intel_encoder_prepare,
+	.mode_set = cdv_hdmi_mode_set,
+	.commit = psb_intel_encoder_commit,
+};
+
+static const struct drm_connector_helper_funcs
+					cdv_hdmi_connector_helper_funcs = {
+	.get_modes = cdv_hdmi_get_modes,
+	.mode_valid = cdv_hdmi_mode_valid,
+	.best_encoder = psb_intel_best_encoder,
+};
+
+static const struct drm_connector_funcs cdv_hdmi_connector_funcs = {
+	.dpms = drm_helper_connector_dpms,
+	.save = cdv_hdmi_save,
+	.restore = cdv_hdmi_restore,
+	.detect = cdv_hdmi_detect,
+	.fill_modes = drm_helper_probe_single_connector_modes,
+	.set_property = cdv_hdmi_set_property,
+	.destroy = cdv_hdmi_destroy,
+};
+
+void cdv_hdmi_init(struct drm_device *dev,
+			struct psb_intel_mode_device *mode_dev, int reg)
+{
+	struct psb_intel_encoder *psb_intel_encoder;
+	struct psb_intel_connector *psb_intel_connector;
+	struct drm_connector *connector;
+	struct drm_encoder *encoder;
+	struct mid_intel_hdmi_priv *hdmi_priv;
+	int ddc_bus;
+
+	psb_intel_encoder = kzalloc(sizeof(struct psb_intel_encoder),
+				    GFP_KERNEL);
+
+	if (!psb_intel_encoder)
+		return;
+
+	psb_intel_connector = kzalloc(sizeof(struct psb_intel_connector),
+				      GFP_KERNEL);
+
+	if (!psb_intel_connector)
+		goto err_connector;
+
+	hdmi_priv = kzalloc(sizeof(struct mid_intel_hdmi_priv), GFP_KERNEL);
+
+	if (!hdmi_priv)
+		goto err_priv;
+
+	connector = &psb_intel_connector->base;
+	encoder = &psb_intel_encoder->base;
+	drm_connector_init(dev, connector,
+			   &cdv_hdmi_connector_funcs,
+			   DRM_MODE_CONNECTOR_DVID);
+
+	drm_encoder_init(dev, encoder, &psb_intel_lvds_enc_funcs,
+			 DRM_MODE_ENCODER_TMDS);
+
+	psb_intel_connector_attach_encoder(psb_intel_connector,
+					   psb_intel_encoder);
+	psb_intel_encoder->type = INTEL_OUTPUT_HDMI;
+	hdmi_priv->hdmi_reg = reg;
+	hdmi_priv->has_hdmi_sink = false;
+	psb_intel_encoder->dev_priv = hdmi_priv;
+
+	drm_encoder_helper_add(encoder, &cdv_hdmi_helper_funcs);
+	drm_connector_helper_add(connector,
+				 &cdv_hdmi_connector_helper_funcs);
+	connector->display_info.subpixel_order = SubPixelHorizontalRGB;
+	connector->interlace_allowed = false;
+	connector->doublescan_allowed = false;
+
+	drm_connector_attach_property(connector,
+				      dev->mode_config.scaling_mode_property,
+				      DRM_MODE_SCALE_FULLSCREEN);
+
+	switch (reg) {
+	case SDVOB:
+		ddc_bus = GPIOE;
+		break;
+	case SDVOC:
+		ddc_bus = GPIOD;
+		break;
+	default:
+		DRM_ERROR("unknown reg 0x%x for HDMI\n", reg);
+		goto failed_ddc;
+		break;
+	}
+
+	psb_intel_encoder->i2c_bus = psb_intel_i2c_create(dev,
+				ddc_bus, (reg == SDVOB) ? "HDMIB" : "HDMIC");
+
+	if (!psb_intel_encoder->i2c_bus) {
+		dev_err(dev->dev, "No ddc adapter available!\n");
+		goto failed_ddc;
+	}
+
+	hdmi_priv->hdmi_i2c_adapter =
+				&(psb_intel_encoder->i2c_bus->adapter);
+	hdmi_priv->dev = dev;
+	drm_sysfs_connector_add(connector);
+	return;
+
+failed_ddc:
+	drm_encoder_cleanup(encoder);
+	drm_connector_cleanup(connector);
+err_priv:
+	kfree(psb_intel_connector);
+err_connector:
+	kfree(psb_intel_encoder);
+}
diff --git a/drivers/gpu/drm/gma500/cdv_intel_lvds.c b/drivers/gpu/drm/gma500/cdv_intel_lvds.c
new file mode 100644
index 000000000000..50e744be9852
--- /dev/null
+++ b/drivers/gpu/drm/gma500/cdv_intel_lvds.c
@@ -0,0 +1,732 @@
+/*
+ * Copyright © 2006-2011 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Authors:
+ *	Eric Anholt <eric@anholt.net>
+ *	Dave Airlie <airlied@linux.ie>
+ *	Jesse Barnes <jesse.barnes@intel.com>
+ */
+
+#include <linux/i2c.h>
+#include <linux/dmi.h>
+#include <drm/drmP.h>
+
+#include "intel_bios.h"
+#include "psb_drv.h"
+#include "psb_intel_drv.h"
+#include "psb_intel_reg.h"
+#include "power.h"
+#include <linux/pm_runtime.h>
+#include "cdv_device.h"
+
+/**
+ * LVDS I2C backlight control macros
+ */
+#define BRIGHTNESS_MAX_LEVEL 100
+#define BRIGHTNESS_MASK 0xFF
+#define BLC_I2C_TYPE	0x01
+#define BLC_PWM_TYPT	0x02
+
+#define BLC_POLARITY_NORMAL 0
+#define BLC_POLARITY_INVERSE 1
+
+#define PSB_BLC_MAX_PWM_REG_FREQ       (0xFFFE)
+#define PSB_BLC_MIN_PWM_REG_FREQ	(0x2)
+#define PSB_BLC_PWM_PRECISION_FACTOR	(10)
+#define PSB_BACKLIGHT_PWM_CTL_SHIFT	(16)
+#define PSB_BACKLIGHT_PWM_POLARITY_BIT_CLEAR (0xFFFE)
+
+struct cdv_intel_lvds_priv {
+	/**
+	 * Saved LVDO output states
+	 */
+	uint32_t savePP_ON;
+	uint32_t savePP_OFF;
+	uint32_t saveLVDS;
+	uint32_t savePP_CONTROL;
+	uint32_t savePP_CYCLE;
+	uint32_t savePFIT_CONTROL;
+	uint32_t savePFIT_PGM_RATIOS;
+	uint32_t saveBLC_PWM_CTL;
+};
+
+/*
+ * Returns the maximum level of the backlight duty cycle field.
+ */
+static u32 cdv_intel_lvds_get_max_backlight(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	u32 retval;
+
+	if (gma_power_begin(dev, false)) {
+		retval = ((REG_READ(BLC_PWM_CTL) &
+			  BACKLIGHT_MODULATION_FREQ_MASK) >>
+			  BACKLIGHT_MODULATION_FREQ_SHIFT) * 2;
+
+		gma_power_end(dev);
+	} else
+		retval = ((dev_priv->saveBLC_PWM_CTL &
+			  BACKLIGHT_MODULATION_FREQ_MASK) >>
+			  BACKLIGHT_MODULATION_FREQ_SHIFT) * 2;
+
+	return retval;
+}
+
+/*
+ * Set LVDS backlight level by I2C command
+ */
+static int cdv_lvds_i2c_set_brightness(struct drm_device *dev,
+					unsigned int level)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct psb_intel_i2c_chan *lvds_i2c_bus = dev_priv->lvds_i2c_bus;
+	u8 out_buf[2];
+	unsigned int blc_i2c_brightness;
+
+	struct i2c_msg msgs[] = {
+		{
+			.addr = lvds_i2c_bus->slave_addr,
+			.flags = 0,
+			.len = 2,
+			.buf = out_buf,
+		}
+	};
+
+	blc_i2c_brightness = BRIGHTNESS_MASK & ((unsigned int)level *
+			     BRIGHTNESS_MASK /
+			     BRIGHTNESS_MAX_LEVEL);
+
+	if (dev_priv->lvds_bl->pol == BLC_POLARITY_INVERSE)
+		blc_i2c_brightness = BRIGHTNESS_MASK - blc_i2c_brightness;
+
+	out_buf[0] = dev_priv->lvds_bl->brightnesscmd;
+	out_buf[1] = (u8)blc_i2c_brightness;
+
+	if (i2c_transfer(&lvds_i2c_bus->adapter, msgs, 1) == 1)
+		return 0;
+
+	DRM_ERROR("I2C transfer error\n");
+	return -1;
+}
+
+
+static int cdv_lvds_pwm_set_brightness(struct drm_device *dev, int level)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+
+	u32 max_pwm_blc;
+	u32 blc_pwm_duty_cycle;
+
+	max_pwm_blc = cdv_intel_lvds_get_max_backlight(dev);
+
+	/*BLC_PWM_CTL Should be initiated while backlight device init*/
+	BUG_ON((max_pwm_blc & PSB_BLC_MAX_PWM_REG_FREQ) == 0);
+
+	blc_pwm_duty_cycle = level * max_pwm_blc / BRIGHTNESS_MAX_LEVEL;
+
+	if (dev_priv->lvds_bl->pol == BLC_POLARITY_INVERSE)
+		blc_pwm_duty_cycle = max_pwm_blc - blc_pwm_duty_cycle;
+
+	blc_pwm_duty_cycle &= PSB_BACKLIGHT_PWM_POLARITY_BIT_CLEAR;
+	REG_WRITE(BLC_PWM_CTL,
+		  (max_pwm_blc << PSB_BACKLIGHT_PWM_CTL_SHIFT) |
+		  (blc_pwm_duty_cycle));
+
+	return 0;
+}
+
+/*
+ * Set LVDS backlight level either by I2C or PWM
+ */
+void cdv_intel_lvds_set_brightness(struct drm_device *dev, int level)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+
+	if (!dev_priv->lvds_bl) {
+		DRM_ERROR("NO LVDS Backlight Info\n");
+		return;
+	}
+
+	if (dev_priv->lvds_bl->type == BLC_I2C_TYPE)
+		cdv_lvds_i2c_set_brightness(dev, level);
+	else
+		cdv_lvds_pwm_set_brightness(dev, level);
+}
+
+/**
+ * Sets the backlight level.
+ *
+ * level backlight level, from 0 to cdv_intel_lvds_get_max_backlight().
+ */
+static void cdv_intel_lvds_set_backlight(struct drm_device *dev, int level)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	u32 blc_pwm_ctl;
+
+	if (gma_power_begin(dev, false)) {
+		blc_pwm_ctl =
+			REG_READ(BLC_PWM_CTL) & ~BACKLIGHT_DUTY_CYCLE_MASK;
+		REG_WRITE(BLC_PWM_CTL,
+				(blc_pwm_ctl |
+				(level << BACKLIGHT_DUTY_CYCLE_SHIFT)));
+		gma_power_end(dev);
+	} else {
+		blc_pwm_ctl = dev_priv->saveBLC_PWM_CTL &
+				~BACKLIGHT_DUTY_CYCLE_MASK;
+		dev_priv->saveBLC_PWM_CTL = (blc_pwm_ctl |
+					(level << BACKLIGHT_DUTY_CYCLE_SHIFT));
+	}
+}
+
+/**
+ * Sets the power state for the panel.
+ */
+static void cdv_intel_lvds_set_power(struct drm_device *dev,
+				     struct drm_encoder *encoder, bool on)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	u32 pp_status;
+
+	if (!gma_power_begin(dev, true))
+		return;
+
+	if (on) {
+		REG_WRITE(PP_CONTROL, REG_READ(PP_CONTROL) |
+			  POWER_TARGET_ON);
+		do {
+			pp_status = REG_READ(PP_STATUS);
+		} while ((pp_status & PP_ON) == 0);
+
+		cdv_intel_lvds_set_backlight(dev,
+				dev_priv->mode_dev.backlight_duty_cycle);
+	} else {
+		cdv_intel_lvds_set_backlight(dev, 0);
+
+		REG_WRITE(PP_CONTROL, REG_READ(PP_CONTROL) &
+			  ~POWER_TARGET_ON);
+		do {
+			pp_status = REG_READ(PP_STATUS);
+		} while (pp_status & PP_ON);
+	}
+	gma_power_end(dev);
+}
+
+static void cdv_intel_lvds_encoder_dpms(struct drm_encoder *encoder, int mode)
+{
+	struct drm_device *dev = encoder->dev;
+	if (mode == DRM_MODE_DPMS_ON)
+		cdv_intel_lvds_set_power(dev, encoder, true);
+	else
+		cdv_intel_lvds_set_power(dev, encoder, false);
+	/* XXX: We never power down the LVDS pairs. */
+}
+
+static void cdv_intel_lvds_save(struct drm_connector *connector)
+{
+}
+
+static void cdv_intel_lvds_restore(struct drm_connector *connector)
+{
+}
+
+int cdv_intel_lvds_mode_valid(struct drm_connector *connector,
+			      struct drm_display_mode *mode)
+{
+	struct drm_device *dev = connector->dev;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct drm_display_mode *fixed_mode =
+					dev_priv->mode_dev.panel_fixed_mode;
+
+	/* just in case */
+	if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
+		return MODE_NO_DBLESCAN;
+
+	/* just in case */
+	if (mode->flags & DRM_MODE_FLAG_INTERLACE)
+		return MODE_NO_INTERLACE;
+
+	if (fixed_mode) {
+		if (mode->hdisplay > fixed_mode->hdisplay)
+			return MODE_PANEL;
+		if (mode->vdisplay > fixed_mode->vdisplay)
+			return MODE_PANEL;
+	}
+	return MODE_OK;
+}
+
+bool cdv_intel_lvds_mode_fixup(struct drm_encoder *encoder,
+				  struct drm_display_mode *mode,
+				  struct drm_display_mode *adjusted_mode)
+{
+	struct drm_device *dev = encoder->dev;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct psb_intel_mode_device *mode_dev = &dev_priv->mode_dev;
+	struct drm_encoder *tmp_encoder;
+	struct drm_display_mode *panel_fixed_mode = mode_dev->panel_fixed_mode;
+
+	/* Should never happen!! */
+	list_for_each_entry(tmp_encoder, &dev->mode_config.encoder_list,
+			    head) {
+		if (tmp_encoder != encoder
+		    && tmp_encoder->crtc == encoder->crtc) {
+			printk(KERN_ERR "Can't enable LVDS and another "
+			       "encoder on the same pipe\n");
+			return false;
+		}
+	}
+
+	/*
+	 * If we have timings from the BIOS for the panel, put them in
+	 * to the adjusted mode.  The CRTC will be set up for this mode,
+	 * with the panel scaling set up to source from the H/VDisplay
+	 * of the original mode.
+	 */
+	if (panel_fixed_mode != NULL) {
+		adjusted_mode->hdisplay = panel_fixed_mode->hdisplay;
+		adjusted_mode->hsync_start = panel_fixed_mode->hsync_start;
+		adjusted_mode->hsync_end = panel_fixed_mode->hsync_end;
+		adjusted_mode->htotal = panel_fixed_mode->htotal;
+		adjusted_mode->vdisplay = panel_fixed_mode->vdisplay;
+		adjusted_mode->vsync_start = panel_fixed_mode->vsync_start;
+		adjusted_mode->vsync_end = panel_fixed_mode->vsync_end;
+		adjusted_mode->vtotal = panel_fixed_mode->vtotal;
+		adjusted_mode->clock = panel_fixed_mode->clock;
+		drm_mode_set_crtcinfo(adjusted_mode,
+				      CRTC_INTERLACE_HALVE_V);
+	}
+
+	/*
+	 * XXX: It would be nice to support lower refresh rates on the
+	 * panels to reduce power consumption, and perhaps match the
+	 * user's requested refresh rate.
+	 */
+
+	return true;
+}
+
+static void cdv_intel_lvds_prepare(struct drm_encoder *encoder)
+{
+	struct drm_device *dev = encoder->dev;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct psb_intel_mode_device *mode_dev = &dev_priv->mode_dev;
+
+	if (!gma_power_begin(dev, true))
+		return;
+
+	mode_dev->saveBLC_PWM_CTL = REG_READ(BLC_PWM_CTL);
+	mode_dev->backlight_duty_cycle = (mode_dev->saveBLC_PWM_CTL &
+					  BACKLIGHT_DUTY_CYCLE_MASK);
+
+	cdv_intel_lvds_set_power(dev, encoder, false);
+
+	gma_power_end(dev);
+}
+
+static void cdv_intel_lvds_commit(struct drm_encoder *encoder)
+{
+	struct drm_device *dev = encoder->dev;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct psb_intel_mode_device *mode_dev = &dev_priv->mode_dev;
+
+	if (mode_dev->backlight_duty_cycle == 0)
+		mode_dev->backlight_duty_cycle =
+		    cdv_intel_lvds_get_max_backlight(dev);
+
+	cdv_intel_lvds_set_power(dev, encoder, true);
+}
+
+static void cdv_intel_lvds_mode_set(struct drm_encoder *encoder,
+				struct drm_display_mode *mode,
+				struct drm_display_mode *adjusted_mode)
+{
+	struct drm_device *dev = encoder->dev;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	u32 pfit_control;
+
+	/*
+	 * The LVDS pin pair will already have been turned on in the
+	 * cdv_intel_crtc_mode_set since it has a large impact on the DPLL
+	 * settings.
+	 */
+
+	/*
+	 * Enable automatic panel scaling so that non-native modes fill the
+	 * screen.  Should be enabled before the pipe is enabled, according to
+	 * register description and PRM.
+	 */
+	if (mode->hdisplay != adjusted_mode->hdisplay ||
+	    mode->vdisplay != adjusted_mode->vdisplay)
+		pfit_control = (PFIT_ENABLE | VERT_AUTO_SCALE |
+				HORIZ_AUTO_SCALE | VERT_INTERP_BILINEAR |
+				HORIZ_INTERP_BILINEAR);
+	else
+		pfit_control = 0;
+
+	if (dev_priv->lvds_dither)
+		pfit_control |= PANEL_8TO6_DITHER_ENABLE;
+
+	REG_WRITE(PFIT_CONTROL, pfit_control);
+}
+
+/**
+ * Detect the LVDS connection.
+ *
+ * This always returns CONNECTOR_STATUS_CONNECTED.
+ * This connector should only have
+ * been set up if the LVDS was actually connected anyway.
+ */
+static enum drm_connector_status cdv_intel_lvds_detect(
+				struct drm_connector *connector, bool force)
+{
+	return connector_status_connected;
+}
+
+/**
+ * Return the list of DDC modes if available, or the BIOS fixed mode otherwise.
+ */
+static int cdv_intel_lvds_get_modes(struct drm_connector *connector)
+{
+	struct drm_device *dev = connector->dev;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct psb_intel_encoder *psb_intel_encoder =
+					psb_intel_attached_encoder(connector);
+	struct psb_intel_mode_device *mode_dev = &dev_priv->mode_dev;
+	int ret;
+
+	ret = psb_intel_ddc_get_modes(connector, &psb_intel_encoder->i2c_bus->adapter);
+
+	if (ret)
+		return ret;
+
+	/* Didn't get an EDID, so
+	 * Set wide sync ranges so we get all modes
+	 * handed to valid_mode for checking
+	 */
+	connector->display_info.min_vfreq = 0;
+	connector->display_info.max_vfreq = 200;
+	connector->display_info.min_hfreq = 0;
+	connector->display_info.max_hfreq = 200;
+	if (mode_dev->panel_fixed_mode != NULL) {
+		struct drm_display_mode *mode =
+		    drm_mode_duplicate(dev, mode_dev->panel_fixed_mode);
+		drm_mode_probed_add(connector, mode);
+		return 1;
+	}
+
+	return 0;
+}
+
+/**
+ * cdv_intel_lvds_destroy - unregister and free LVDS structures
+ * @connector: connector to free
+ *
+ * Unregister the DDC bus for this connector then free the driver private
+ * structure.
+ */
+void cdv_intel_lvds_destroy(struct drm_connector *connector)
+{
+	struct psb_intel_encoder *psb_intel_encoder =
+					psb_intel_attached_encoder(connector);
+
+	if (psb_intel_encoder->i2c_bus)
+		psb_intel_i2c_destroy(psb_intel_encoder->i2c_bus);
+	drm_sysfs_connector_remove(connector);
+	drm_connector_cleanup(connector);
+	kfree(connector);
+}
+
+int cdv_intel_lvds_set_property(struct drm_connector *connector,
+				       struct drm_property *property,
+				       uint64_t value)
+{
+	struct drm_encoder *encoder = connector->encoder;
+
+	if (!strcmp(property->name, "scaling mode") && encoder) {
+		struct psb_intel_crtc *crtc =
+					to_psb_intel_crtc(encoder->crtc);
+		uint64_t curValue;
+
+		if (!crtc)
+			return -1;
+
+		switch (value) {
+		case DRM_MODE_SCALE_FULLSCREEN:
+			break;
+		case DRM_MODE_SCALE_NO_SCALE:
+			break;
+		case DRM_MODE_SCALE_ASPECT:
+			break;
+		default:
+			return -1;
+		}
+
+		if (drm_connector_property_get_value(connector,
+						     property,
+						     &curValue))
+			return -1;
+
+		if (curValue == value)
+			return 0;
+
+		if (drm_connector_property_set_value(connector,
+							property,
+							value))
+			return -1;
+
+		if (crtc->saved_mode.hdisplay != 0 &&
+		    crtc->saved_mode.vdisplay != 0) {
+			if (!drm_crtc_helper_set_mode(encoder->crtc,
+						      &crtc->saved_mode,
+						      encoder->crtc->x,
+						      encoder->crtc->y,
+						      encoder->crtc->fb))
+				return -1;
+		}
+	} else if (!strcmp(property->name, "backlight") && encoder) {
+		if (drm_connector_property_set_value(connector,
+							property,
+							value))
+			return -1;
+		else {
+#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
+			struct drm_psb_private *dev_priv =
+						encoder->dev->dev_private;
+			struct backlight_device *bd =
+						dev_priv->backlight_device;
+			bd->props.brightness = value;
+			backlight_update_status(bd);
+#endif
+		}
+	} else if (!strcmp(property->name, "DPMS") && encoder) {
+		struct drm_encoder_helper_funcs *helpers =
+					encoder->helper_private;
+		helpers->dpms(encoder, value);
+	}
+	return 0;
+}
+
+static const struct drm_encoder_helper_funcs
+					cdv_intel_lvds_helper_funcs = {
+	.dpms = cdv_intel_lvds_encoder_dpms,
+	.mode_fixup = cdv_intel_lvds_mode_fixup,
+	.prepare = cdv_intel_lvds_prepare,
+	.mode_set = cdv_intel_lvds_mode_set,
+	.commit = cdv_intel_lvds_commit,
+};
+
+static const struct drm_connector_helper_funcs
+				cdv_intel_lvds_connector_helper_funcs = {
+	.get_modes = cdv_intel_lvds_get_modes,
+	.mode_valid = cdv_intel_lvds_mode_valid,
+	.best_encoder = psb_intel_best_encoder,
+};
+
+static const struct drm_connector_funcs cdv_intel_lvds_connector_funcs = {
+	.dpms = drm_helper_connector_dpms,
+	.save = cdv_intel_lvds_save,
+	.restore = cdv_intel_lvds_restore,
+	.detect = cdv_intel_lvds_detect,
+	.fill_modes = drm_helper_probe_single_connector_modes,
+	.set_property = cdv_intel_lvds_set_property,
+	.destroy = cdv_intel_lvds_destroy,
+};
+
+
+static void cdv_intel_lvds_enc_destroy(struct drm_encoder *encoder)
+{
+	drm_encoder_cleanup(encoder);
+}
+
+const struct drm_encoder_funcs cdv_intel_lvds_enc_funcs = {
+	.destroy = cdv_intel_lvds_enc_destroy,
+};
+
+/**
+ * cdv_intel_lvds_init - setup LVDS connectors on this device
+ * @dev: drm device
+ *
+ * Create the connector, register the LVDS DDC bus, and try to figure out what
+ * modes we can display on the LVDS panel (if present).
+ */
+void cdv_intel_lvds_init(struct drm_device *dev,
+		     struct psb_intel_mode_device *mode_dev)
+{
+	struct psb_intel_encoder *psb_intel_encoder;
+	struct psb_intel_connector *psb_intel_connector;
+	struct cdv_intel_lvds_priv *lvds_priv;
+	struct drm_connector *connector;
+	struct drm_encoder *encoder;
+	struct drm_display_mode *scan;
+	struct drm_crtc *crtc;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	u32 lvds;
+	int pipe;
+
+	psb_intel_encoder = kzalloc(sizeof(struct psb_intel_encoder),
+				    GFP_KERNEL);
+	if (!psb_intel_encoder)
+		return;
+
+	psb_intel_connector = kzalloc(sizeof(struct psb_intel_connector),
+				      GFP_KERNEL);
+	if (!psb_intel_connector)
+		goto failed_connector;
+
+	lvds_priv = kzalloc(sizeof(struct cdv_intel_lvds_priv), GFP_KERNEL);
+	if (!lvds_priv)
+		goto failed_lvds_priv;
+
+	psb_intel_encoder->dev_priv = lvds_priv;
+
+	connector = &psb_intel_connector->base;
+	encoder = &psb_intel_encoder->base;
+
+
+	drm_connector_init(dev, connector,
+			   &cdv_intel_lvds_connector_funcs,
+			   DRM_MODE_CONNECTOR_LVDS);
+
+	drm_encoder_init(dev, encoder,
+			 &cdv_intel_lvds_enc_funcs,
+			 DRM_MODE_ENCODER_LVDS);
+
+
+	psb_intel_connector_attach_encoder(psb_intel_connector,
+					   psb_intel_encoder);
+	psb_intel_encoder->type = INTEL_OUTPUT_LVDS;
+
+	drm_encoder_helper_add(encoder, &cdv_intel_lvds_helper_funcs);
+	drm_connector_helper_add(connector,
+				 &cdv_intel_lvds_connector_helper_funcs);
+	connector->display_info.subpixel_order = SubPixelHorizontalRGB;
+	connector->interlace_allowed = false;
+	connector->doublescan_allowed = false;
+
+	/*Attach connector properties*/
+	drm_connector_attach_property(connector,
+				      dev->mode_config.scaling_mode_property,
+				      DRM_MODE_SCALE_FULLSCREEN);
+	drm_connector_attach_property(connector,
+				      dev_priv->backlight_property,
+				      BRIGHTNESS_MAX_LEVEL);
+
+	/**
+	 * Set up I2C bus
+	 * FIXME: distroy i2c_bus when exit
+	 */
+	psb_intel_encoder->i2c_bus = psb_intel_i2c_create(dev,
+							 GPIOB,
+							 "LVDSBLC_B");
+	if (!psb_intel_encoder->i2c_bus) {
+		dev_printk(KERN_ERR,
+			&dev->pdev->dev, "I2C bus registration failed.\n");
+		goto failed_blc_i2c;
+	}
+	psb_intel_encoder->i2c_bus->slave_addr = 0x2C;
+	dev_priv->lvds_i2c_bus = psb_intel_encoder->i2c_bus;
+
+	/*
+	 * LVDS discovery:
+	 * 1) check for EDID on DDC
+	 * 2) check for VBT data
+	 * 3) check to see if LVDS is already on
+	 *    if none of the above, no panel
+	 * 4) make sure lid is open
+	 *    if closed, act like it's not there for now
+	 */
+
+	/* Set up the DDC bus. */
+	psb_intel_encoder->ddc_bus = psb_intel_i2c_create(dev,
+							 GPIOC,
+							 "LVDSDDC_C");
+	if (!psb_intel_encoder->ddc_bus) {
+		dev_printk(KERN_ERR, &dev->pdev->dev,
+			   "DDC bus registration " "failed.\n");
+		goto failed_ddc;
+	}
+
+	/*
+	 * Attempt to get the fixed panel mode from DDC.  Assume that the
+	 * preferred mode is the right one.
+	 */
+	psb_intel_ddc_get_modes(connector,
+				&psb_intel_encoder->ddc_bus->adapter);
+	list_for_each_entry(scan, &connector->probed_modes, head) {
+		if (scan->type & DRM_MODE_TYPE_PREFERRED) {
+			mode_dev->panel_fixed_mode =
+			    drm_mode_duplicate(dev, scan);
+			goto out;	/* FIXME: check for quirks */
+		}
+	}
+
+	/* Failed to get EDID, what about VBT? do we need this?*/
+	if (dev_priv->lfp_lvds_vbt_mode) {
+		mode_dev->panel_fixed_mode =
+			drm_mode_duplicate(dev, dev_priv->lfp_lvds_vbt_mode);
+		if (mode_dev->panel_fixed_mode) {
+			mode_dev->panel_fixed_mode->type |=
+				DRM_MODE_TYPE_PREFERRED;
+			goto out;	/* FIXME: check for quirks */
+		}
+	}
+	/*
+	 * If we didn't get EDID, try checking if the panel is already turned
+	 * on.	If so, assume that whatever is currently programmed is the
+	 * correct mode.
+	 */
+	lvds = REG_READ(LVDS);
+	pipe = (lvds & LVDS_PIPEB_SELECT) ? 1 : 0;
+	crtc = psb_intel_get_crtc_from_pipe(dev, pipe);
+
+	if (crtc && (lvds & LVDS_PORT_EN)) {
+		mode_dev->panel_fixed_mode =
+		    cdv_intel_crtc_mode_get(dev, crtc);
+		if (mode_dev->panel_fixed_mode) {
+			mode_dev->panel_fixed_mode->type |=
+			    DRM_MODE_TYPE_PREFERRED;
+			goto out;	/* FIXME: check for quirks */
+		}
+	}
+
+	/* If we still don't have a mode after all that, give up. */
+	if (!mode_dev->panel_fixed_mode) {
+		DRM_DEBUG
+			("Found no modes on the lvds, ignoring the LVDS\n");
+		goto failed_find;
+	}
+
+out:
+	drm_sysfs_connector_add(connector);
+	return;
+
+failed_find:
+	printk(KERN_ERR "Failed find\n");
+	if (psb_intel_encoder->ddc_bus)
+		psb_intel_i2c_destroy(psb_intel_encoder->ddc_bus);
+failed_ddc:
+	printk(KERN_ERR "Failed DDC\n");
+	if (psb_intel_encoder->i2c_bus)
+		psb_intel_i2c_destroy(psb_intel_encoder->i2c_bus);
+failed_blc_i2c:
+	printk(KERN_ERR "Failed BLC\n");
+	drm_encoder_cleanup(encoder);
+	drm_connector_cleanup(connector);
+	kfree(lvds_priv);
+failed_lvds_priv:
+	kfree(psb_intel_connector);
+failed_connector:
+	kfree(psb_intel_encoder);
+}
diff --git a/drivers/gpu/drm/gma500/framebuffer.c b/drivers/gpu/drm/gma500/framebuffer.c
new file mode 100644
index 000000000000..791c0ef1a65b
--- /dev/null
+++ b/drivers/gpu/drm/gma500/framebuffer.c
@@ -0,0 +1,831 @@
+/**************************************************************************
+ * Copyright (c) 2007-2011, Intel Corporation.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ **************************************************************************/
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/mm.h>
+#include <linux/tty.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include <linux/fb.h>
+#include <linux/init.h>
+#include <linux/console.h>
+
+#include <drm/drmP.h>
+#include <drm/drm.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_fb_helper.h>
+
+#include "psb_drv.h"
+#include "psb_intel_reg.h"
+#include "psb_intel_drv.h"
+#include "framebuffer.h"
+#include "gtt.h"
+
+static void psb_user_framebuffer_destroy(struct drm_framebuffer *fb);
+static int psb_user_framebuffer_create_handle(struct drm_framebuffer *fb,
+					      struct drm_file *file_priv,
+					      unsigned int *handle);
+
+static const struct drm_framebuffer_funcs psb_fb_funcs = {
+	.destroy = psb_user_framebuffer_destroy,
+	.create_handle = psb_user_framebuffer_create_handle,
+};
+
+#define CMAP_TOHW(_val, _width) ((((_val) << (_width)) + 0x7FFF - (_val)) >> 16)
+
+static int psbfb_setcolreg(unsigned regno, unsigned red, unsigned green,
+			   unsigned blue, unsigned transp,
+			   struct fb_info *info)
+{
+	struct psb_fbdev *fbdev = info->par;
+	struct drm_framebuffer *fb = fbdev->psb_fb_helper.fb;
+	uint32_t v;
+
+	if (!fb)
+		return -ENOMEM;
+
+	if (regno > 255)
+		return 1;
+
+	red = CMAP_TOHW(red, info->var.red.length);
+	blue = CMAP_TOHW(blue, info->var.blue.length);
+	green = CMAP_TOHW(green, info->var.green.length);
+	transp = CMAP_TOHW(transp, info->var.transp.length);
+
+	v = (red << info->var.red.offset) |
+	    (green << info->var.green.offset) |
+	    (blue << info->var.blue.offset) |
+	    (transp << info->var.transp.offset);
+
+	if (regno < 16) {
+		switch (fb->bits_per_pixel) {
+		case 16:
+			((uint32_t *) info->pseudo_palette)[regno] = v;
+			break;
+		case 24:
+		case 32:
+			((uint32_t *) info->pseudo_palette)[regno] = v;
+			break;
+		}
+	}
+
+	return 0;
+}
+
+static int psbfb_pan(struct fb_var_screeninfo *var, struct fb_info *info)
+{
+	struct psb_fbdev *fbdev = info->par;
+	struct psb_framebuffer *psbfb = &fbdev->pfb;
+	struct drm_device *dev = psbfb->base.dev;
+
+	/*
+	 *	We have to poke our nose in here. The core fb code assumes
+	 *	panning is part of the hardware that can be invoked before
+	 *	the actual fb is mapped. In our case that isn't quite true.
+	 */
+	if (psbfb->gtt->npage) {
+		/* GTT roll shifts in 4K pages, we need to shift the right
+		   number of pages */
+		int pages = info->fix.line_length >> 12;
+		psb_gtt_roll(dev, psbfb->gtt, var->yoffset * pages);
+	}
+        return 0;
+}
+
+void psbfb_suspend(struct drm_device *dev)
+{
+	struct drm_framebuffer *fb = 0;
+	struct psb_framebuffer *psbfb = to_psb_fb(fb);
+
+	console_lock();
+	mutex_lock(&dev->mode_config.mutex);
+	list_for_each_entry(fb, &dev->mode_config.fb_list, head) {
+		struct fb_info *info = psbfb->fbdev;
+		fb_set_suspend(info, 1);
+		drm_fb_helper_blank(FB_BLANK_POWERDOWN, info);
+	}
+	mutex_unlock(&dev->mode_config.mutex);
+	console_unlock();
+}
+
+void psbfb_resume(struct drm_device *dev)
+{
+	struct drm_framebuffer *fb = 0;
+	struct psb_framebuffer *psbfb = to_psb_fb(fb);
+
+	console_lock();
+	mutex_lock(&dev->mode_config.mutex);
+	list_for_each_entry(fb, &dev->mode_config.fb_list, head) {
+		struct fb_info *info = psbfb->fbdev;
+		fb_set_suspend(info, 0);
+		drm_fb_helper_blank(FB_BLANK_UNBLANK, info);
+	}
+	mutex_unlock(&dev->mode_config.mutex);
+	console_unlock();
+	drm_helper_disable_unused_functions(dev);
+}
+
+static int psbfb_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+	struct psb_framebuffer *psbfb = vma->vm_private_data;
+	struct drm_device *dev = psbfb->base.dev;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	int page_num;
+	int i;
+	unsigned long address;
+	int ret;
+	unsigned long pfn;
+	/* FIXME: assumes fb at stolen base which may not be true */
+	unsigned long phys_addr = (unsigned long)dev_priv->stolen_base;
+
+	page_num = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
+	address = (unsigned long)vmf->virtual_address;
+
+	vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
+
+	for (i = 0; i < page_num; i++) {
+		pfn = (phys_addr >> PAGE_SHIFT);
+
+		ret = vm_insert_mixed(vma, address, pfn);
+		if (unlikely((ret == -EBUSY) || (ret != 0 && i > 0)))
+			break;
+		else if (unlikely(ret != 0)) {
+			ret = (ret == -ENOMEM) ? VM_FAULT_OOM : VM_FAULT_SIGBUS;
+			return ret;
+		}
+		address += PAGE_SIZE;
+		phys_addr += PAGE_SIZE;
+	}
+	return VM_FAULT_NOPAGE;
+}
+
+static void psbfb_vm_open(struct vm_area_struct *vma)
+{
+}
+
+static void psbfb_vm_close(struct vm_area_struct *vma)
+{
+}
+
+static struct vm_operations_struct psbfb_vm_ops = {
+	.fault	= psbfb_vm_fault,
+	.open	= psbfb_vm_open,
+	.close	= psbfb_vm_close
+};
+
+static int psbfb_mmap(struct fb_info *info, struct vm_area_struct *vma)
+{
+	struct psb_fbdev *fbdev = info->par;
+	struct psb_framebuffer *psbfb = &fbdev->pfb;
+
+	if (vma->vm_pgoff != 0)
+		return -EINVAL;
+	if (vma->vm_pgoff > (~0UL >> PAGE_SHIFT))
+		return -EINVAL;
+
+	if (!psbfb->addr_space)
+		psbfb->addr_space = vma->vm_file->f_mapping;
+	/*
+	 * If this is a GEM object then info->screen_base is the virtual
+	 * kernel remapping of the object. FIXME: Review if this is
+	 * suitable for our mmap work
+	 */
+	vma->vm_ops = &psbfb_vm_ops;
+	vma->vm_private_data = (void *)psbfb;
+	vma->vm_flags |= VM_RESERVED | VM_IO |
+					VM_MIXEDMAP | VM_DONTEXPAND;
+	return 0;
+}
+
+static int psbfb_ioctl(struct fb_info *info, unsigned int cmd,
+						unsigned long arg)
+{
+	return -ENOTTY;
+}
+
+static struct fb_ops psbfb_ops = {
+	.owner = THIS_MODULE,
+	.fb_check_var = drm_fb_helper_check_var,
+	.fb_set_par = drm_fb_helper_set_par,
+	.fb_blank = drm_fb_helper_blank,
+	.fb_setcolreg = psbfb_setcolreg,
+	.fb_fillrect = cfb_fillrect,
+	.fb_copyarea = psbfb_copyarea,
+	.fb_imageblit = cfb_imageblit,
+	.fb_mmap = psbfb_mmap,
+	.fb_sync = psbfb_sync,
+	.fb_ioctl = psbfb_ioctl,
+};
+
+static struct fb_ops psbfb_roll_ops = {
+	.owner = THIS_MODULE,
+	.fb_check_var = drm_fb_helper_check_var,
+	.fb_set_par = drm_fb_helper_set_par,
+	.fb_blank = drm_fb_helper_blank,
+	.fb_setcolreg = psbfb_setcolreg,
+	.fb_fillrect = cfb_fillrect,
+	.fb_copyarea = cfb_copyarea,
+	.fb_imageblit = cfb_imageblit,
+	.fb_pan_display = psbfb_pan,
+	.fb_mmap = psbfb_mmap,
+	.fb_sync = psbfb_sync,
+	.fb_ioctl = psbfb_ioctl,
+};
+
+static struct fb_ops psbfb_unaccel_ops = {
+	.owner = THIS_MODULE,
+	.fb_check_var = drm_fb_helper_check_var,
+	.fb_set_par = drm_fb_helper_set_par,
+	.fb_blank = drm_fb_helper_blank,
+	.fb_setcolreg = psbfb_setcolreg,
+	.fb_fillrect = cfb_fillrect,
+	.fb_copyarea = cfb_copyarea,
+	.fb_imageblit = cfb_imageblit,
+	.fb_mmap = psbfb_mmap,
+	.fb_ioctl = psbfb_ioctl,
+};
+
+/**
+ *	psb_framebuffer_init	-	initialize a framebuffer
+ *	@dev: our DRM device
+ *	@fb: framebuffer to set up
+ *	@mode_cmd: mode description
+ *	@gt: backing object
+ *
+ *	Configure and fill in the boilerplate for our frame buffer. Return
+ *	0 on success or an error code if we fail.
+ */
+static int psb_framebuffer_init(struct drm_device *dev,
+					struct psb_framebuffer *fb,
+					struct drm_mode_fb_cmd2 *mode_cmd,
+					struct gtt_range *gt)
+{
+	u32 bpp, depth;
+	int ret;
+
+	drm_fb_get_bpp_depth(mode_cmd->pixel_format, &depth, &bpp);
+
+	if (mode_cmd->pitches[0] & 63)
+		return -EINVAL;
+	switch (bpp) {
+	case 8:
+	case 16:
+	case 24:
+	case 32:
+		break;
+	default:
+		return -EINVAL;
+	}
+	ret = drm_framebuffer_init(dev, &fb->base, &psb_fb_funcs);
+	if (ret) {
+		dev_err(dev->dev, "framebuffer init failed: %d\n", ret);
+		return ret;
+	}
+	drm_helper_mode_fill_fb_struct(&fb->base, mode_cmd);
+	fb->gtt = gt;
+	return 0;
+}
+
+/**
+ *	psb_framebuffer_create	-	create a framebuffer backed by gt
+ *	@dev: our DRM device
+ *	@mode_cmd: the description of the requested mode
+ *	@gt: the backing object
+ *
+ *	Create a framebuffer object backed by the gt, and fill in the
+ *	boilerplate required
+ *
+ *	TODO: review object references
+ */
+
+static struct drm_framebuffer *psb_framebuffer_create
+			(struct drm_device *dev,
+			 struct drm_mode_fb_cmd2 *mode_cmd,
+			 struct gtt_range *gt)
+{
+	struct psb_framebuffer *fb;
+	int ret;
+
+	fb = kzalloc(sizeof(*fb), GFP_KERNEL);
+	if (!fb)
+		return ERR_PTR(-ENOMEM);
+
+	ret = psb_framebuffer_init(dev, fb, mode_cmd, gt);
+	if (ret) {
+		kfree(fb);
+		return ERR_PTR(ret);
+	}
+	return &fb->base;
+}
+
+/**
+ *	psbfb_alloc		-	allocate frame buffer memory
+ *	@dev: the DRM device
+ *	@aligned_size: space needed
+ *	@force: fall back to GEM buffers if need be
+ *
+ *	Allocate the frame buffer. In the usual case we get a GTT range that
+ *	is stolen memory backed and life is simple. If there isn't sufficient
+ *	we fail as we don't have the virtual mapping space to really vmap it
+ *	and the kernel console code can't handle non linear framebuffers.
+ *
+ *	Re-address this as and if the framebuffer layer grows this ability.
+ */
+static struct gtt_range *psbfb_alloc(struct drm_device *dev, int aligned_size)
+{
+	struct gtt_range *backing;
+	/* Begin by trying to use stolen memory backing */
+	backing = psb_gtt_alloc_range(dev, aligned_size, "fb", 1);
+	if (backing) {
+		if (drm_gem_private_object_init(dev,
+					&backing->gem, aligned_size) == 0)
+			return backing;
+		psb_gtt_free_range(dev, backing);
+	}
+	return NULL;
+}
+
+/**
+ *	psbfb_create		-	create a framebuffer
+ *	@fbdev: the framebuffer device
+ *	@sizes: specification of the layout
+ *
+ *	Create a framebuffer to the specifications provided
+ */
+static int psbfb_create(struct psb_fbdev *fbdev,
+				struct drm_fb_helper_surface_size *sizes)
+{
+	struct drm_device *dev = fbdev->psb_fb_helper.dev;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct fb_info *info;
+	struct drm_framebuffer *fb;
+	struct psb_framebuffer *psbfb = &fbdev->pfb;
+	struct drm_mode_fb_cmd2 mode_cmd;
+	struct device *device = &dev->pdev->dev;
+	int size;
+	int ret;
+	struct gtt_range *backing;
+	u32 bpp, depth;
+	int gtt_roll = 0;
+	int pitch_lines = 0;
+
+	mode_cmd.width = sizes->surface_width;
+	mode_cmd.height = sizes->surface_height;
+	bpp = sizes->surface_bpp;
+
+	/* No 24bit packed */
+	if (bpp == 24)
+		bpp = 32;
+
+	do {
+		/*
+		 * Acceleration via the GTT requires pitch to be
+		 * power of two aligned. Preferably page but less
+		 * is ok with some fonts
+		 */
+        	mode_cmd.pitches[0] =  ALIGN(mode_cmd.width * ((bpp + 7) / 8), 4096 >> pitch_lines);
+        	depth = sizes->surface_depth;
+
+        	size = mode_cmd.pitches[0] * mode_cmd.height;
+        	size = ALIGN(size, PAGE_SIZE);
+
+		/* Allocate the fb in the GTT with stolen page backing */
+		backing = psbfb_alloc(dev, size);
+
+		if (pitch_lines)
+			pitch_lines *= 2;
+		else
+			pitch_lines = 1;
+		gtt_roll++;
+	} while (backing == NULL && pitch_lines <= 16);
+
+	/* The final pitch we accepted if we succeeded */
+	pitch_lines /= 2;
+
+	if (backing == NULL) {
+		/*
+		 *	We couldn't get the space we wanted, fall back to the
+		 *	display engine requirement instead.  The HW requires
+		 *	the pitch to be 64 byte aligned
+		 */
+
+		gtt_roll = 0;	/* Don't use GTT accelerated scrolling */
+		pitch_lines = 64;
+
+		mode_cmd.pitches[0] =  ALIGN(mode_cmd.width * ((bpp + 7) / 8), 64);
+
+		size = mode_cmd.pitches[0] * mode_cmd.height;
+		size = ALIGN(size, PAGE_SIZE);
+
+		/* Allocate the framebuffer in the GTT with stolen page backing */
+		backing = psbfb_alloc(dev, size);
+		if (backing == NULL)
+			return -ENOMEM;
+	}
+
+	mutex_lock(&dev->struct_mutex);
+
+	info = framebuffer_alloc(0, device);
+	if (!info) {
+		ret = -ENOMEM;
+		goto out_err1;
+	}
+	info->par = fbdev;
+
+	mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth);
+
+	ret = psb_framebuffer_init(dev, psbfb, &mode_cmd, backing);
+	if (ret)
+		goto out_unref;
+
+	fb = &psbfb->base;
+	psbfb->fbdev = info;
+
+	fbdev->psb_fb_helper.fb = fb;
+	fbdev->psb_fb_helper.fbdev = info;
+
+	strcpy(info->fix.id, "psbfb");
+
+	info->flags = FBINFO_DEFAULT;
+	if (dev_priv->ops->accel_2d && pitch_lines > 8)	/* 2D engine */
+		info->fbops = &psbfb_ops;
+	else if (gtt_roll) {	/* GTT rolling seems best */
+		info->fbops = &psbfb_roll_ops;
+		info->flags |= FBINFO_HWACCEL_YPAN;
+	} else	/* Software */
+		info->fbops = &psbfb_unaccel_ops;
+
+	ret = fb_alloc_cmap(&info->cmap, 256, 0);
+	if (ret) {
+		ret = -ENOMEM;
+		goto out_unref;
+	}
+
+	info->fix.smem_start = dev->mode_config.fb_base;
+	info->fix.smem_len = size;
+	info->fix.ywrapstep = gtt_roll;
+	info->fix.ypanstep = 0;
+
+	/* Accessed stolen memory directly */
+	info->screen_base = (char *)dev_priv->vram_addr +
+							backing->offset;
+	info->screen_size = size;
+
+	if (dev_priv->gtt.stolen_size) {
+		info->apertures = alloc_apertures(1);
+		if (!info->apertures) {
+			ret = -ENOMEM;
+			goto out_unref;
+		}
+		info->apertures->ranges[0].base = dev->mode_config.fb_base;
+		info->apertures->ranges[0].size = dev_priv->gtt.stolen_size;
+	}
+
+	drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
+	drm_fb_helper_fill_var(info, &fbdev->psb_fb_helper,
+				sizes->fb_width, sizes->fb_height);
+
+	info->fix.mmio_start = pci_resource_start(dev->pdev, 0);
+	info->fix.mmio_len = pci_resource_len(dev->pdev, 0);
+
+	info->pixmap.size = 64 * 1024;
+	info->pixmap.buf_align = 8;
+	info->pixmap.access_align = 32;
+	info->pixmap.flags = FB_PIXMAP_SYSTEM;
+	info->pixmap.scan_align = 1;
+
+	dev_info(dev->dev, "allocated %dx%d fb\n",
+					psbfb->base.width, psbfb->base.height);
+
+	mutex_unlock(&dev->struct_mutex);
+	return 0;
+out_unref:
+	if (backing->stolen)
+		psb_gtt_free_range(dev, backing);
+	else
+		drm_gem_object_unreference(&backing->gem);
+out_err1:
+	mutex_unlock(&dev->struct_mutex);
+	psb_gtt_free_range(dev, backing);
+	return ret;
+}
+
+/**
+ *	psb_user_framebuffer_create	-	create framebuffer
+ *	@dev: our DRM device
+ *	@filp: client file
+ *	@cmd: mode request
+ *
+ *	Create a new framebuffer backed by a userspace GEM object
+ */
+static struct drm_framebuffer *psb_user_framebuffer_create
+			(struct drm_device *dev, struct drm_file *filp,
+			 struct drm_mode_fb_cmd2 *cmd)
+{
+	struct gtt_range *r;
+	struct drm_gem_object *obj;
+
+	/*
+	 *	Find the GEM object and thus the gtt range object that is
+	 *	to back this space
+	 */
+	obj = drm_gem_object_lookup(dev, filp, cmd->handles[0]);
+	if (obj == NULL)
+		return ERR_PTR(-ENOENT);
+
+	/* Let the core code do all the work */
+	r = container_of(obj, struct gtt_range, gem);
+	return psb_framebuffer_create(dev, cmd, r);
+}
+
+static void psbfb_gamma_set(struct drm_crtc *crtc, u16 red, u16 green,
+							u16 blue, int regno)
+{
+}
+
+static void psbfb_gamma_get(struct drm_crtc *crtc, u16 *red,
+					u16 *green, u16 *blue, int regno)
+{
+}
+
+static int psbfb_probe(struct drm_fb_helper *helper,
+				struct drm_fb_helper_surface_size *sizes)
+{
+	struct psb_fbdev *psb_fbdev = (struct psb_fbdev *)helper;
+	int new_fb = 0;
+	int ret;
+
+	if (!helper->fb) {
+		ret = psbfb_create(psb_fbdev, sizes);
+		if (ret)
+			return ret;
+		new_fb = 1;
+	}
+	return new_fb;
+}
+
+struct drm_fb_helper_funcs psb_fb_helper_funcs = {
+	.gamma_set = psbfb_gamma_set,
+	.gamma_get = psbfb_gamma_get,
+	.fb_probe = psbfb_probe,
+};
+
+int psb_fbdev_destroy(struct drm_device *dev, struct psb_fbdev *fbdev)
+{
+	struct fb_info *info;
+	struct psb_framebuffer *psbfb = &fbdev->pfb;
+
+	if (fbdev->psb_fb_helper.fbdev) {
+		info = fbdev->psb_fb_helper.fbdev;
+		unregister_framebuffer(info);
+		if (info->cmap.len)
+			fb_dealloc_cmap(&info->cmap);
+		framebuffer_release(info);
+	}
+	drm_fb_helper_fini(&fbdev->psb_fb_helper);
+	drm_framebuffer_cleanup(&psbfb->base);
+
+	if (psbfb->gtt)
+		drm_gem_object_unreference(&psbfb->gtt->gem);
+	return 0;
+}
+
+int psb_fbdev_init(struct drm_device *dev)
+{
+	struct psb_fbdev *fbdev;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+
+	fbdev = kzalloc(sizeof(struct psb_fbdev), GFP_KERNEL);
+	if (!fbdev) {
+		dev_err(dev->dev, "no memory\n");
+		return -ENOMEM;
+	}
+
+	dev_priv->fbdev = fbdev;
+	fbdev->psb_fb_helper.funcs = &psb_fb_helper_funcs;
+
+	drm_fb_helper_init(dev, &fbdev->psb_fb_helper, dev_priv->ops->crtcs,
+							INTELFB_CONN_LIMIT);
+
+	drm_fb_helper_single_add_all_connectors(&fbdev->psb_fb_helper);
+	drm_fb_helper_initial_config(&fbdev->psb_fb_helper, 32);
+	return 0;
+}
+
+void psb_fbdev_fini(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+
+	if (!dev_priv->fbdev)
+		return;
+
+	psb_fbdev_destroy(dev, dev_priv->fbdev);
+	kfree(dev_priv->fbdev);
+	dev_priv->fbdev = NULL;
+}
+
+static void psbfb_output_poll_changed(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct psb_fbdev *fbdev = (struct psb_fbdev *)dev_priv->fbdev;
+	drm_fb_helper_hotplug_event(&fbdev->psb_fb_helper);
+}
+
+/**
+ *	psb_user_framebuffer_create_handle - add hamdle to a framebuffer
+ *	@fb: framebuffer
+ *	@file_priv: our DRM file
+ *	@handle: returned handle
+ *
+ *	Our framebuffer object is a GTT range which also contains a GEM
+ *	object. We need to turn it into a handle for userspace. GEM will do
+ *	the work for us
+ */
+static int psb_user_framebuffer_create_handle(struct drm_framebuffer *fb,
+					      struct drm_file *file_priv,
+					      unsigned int *handle)
+{
+	struct psb_framebuffer *psbfb = to_psb_fb(fb);
+	struct gtt_range *r = psbfb->gtt;
+	return drm_gem_handle_create(file_priv, &r->gem, handle);
+}
+
+/**
+ *	psb_user_framebuffer_destroy	-	destruct user created fb
+ *	@fb: framebuffer
+ *
+ *	User framebuffers are backed by GEM objects so all we have to do is
+ *	clean up a bit and drop the reference, GEM will handle the fallout
+ */
+static void psb_user_framebuffer_destroy(struct drm_framebuffer *fb)
+{
+	struct psb_framebuffer *psbfb = to_psb_fb(fb);
+	struct gtt_range *r = psbfb->gtt;
+	struct drm_device *dev = fb->dev;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct psb_fbdev *fbdev = dev_priv->fbdev;
+	struct drm_crtc *crtc;
+	int reset = 0;
+
+	/* Should never get stolen memory for a user fb */
+	WARN_ON(r->stolen);
+
+	/* Check if we are erroneously live */
+	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
+		if (crtc->fb == fb)
+			reset = 1;
+
+	if (reset)
+		/*
+		 * Now force a sane response before we permit the DRM CRTC
+		 * layer to do stupid things like blank the display. Instead
+		 * we reset this framebuffer as if the user had forced a reset.
+		 * We must do this before the cleanup so that the DRM layer
+		 * doesn't get a chance to stick its oar in where it isn't
+		 * wanted.
+		 */
+		drm_fb_helper_restore_fbdev_mode(&fbdev->psb_fb_helper);
+
+	/* Let DRM do its clean up */
+	drm_framebuffer_cleanup(fb);
+	/*  We are no longer using the resource in GEM */
+	drm_gem_object_unreference_unlocked(&r->gem);
+	kfree(fb);
+}
+
+static const struct drm_mode_config_funcs psb_mode_funcs = {
+	.fb_create = psb_user_framebuffer_create,
+	.output_poll_changed = psbfb_output_poll_changed,
+};
+
+static int psb_create_backlight_property(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct drm_property *backlight;
+
+	if (dev_priv->backlight_property)
+		return 0;
+
+	backlight = drm_property_create(dev, DRM_MODE_PROP_RANGE,
+							"backlight", 2);
+	backlight->values[0] = 0;
+	backlight->values[1] = 100;
+
+	dev_priv->backlight_property = backlight;
+
+	return 0;
+}
+
+static void psb_setup_outputs(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct drm_connector *connector;
+
+	drm_mode_create_scaling_mode_property(dev);
+	psb_create_backlight_property(dev);
+
+	dev_priv->ops->output_init(dev);
+
+	list_for_each_entry(connector, &dev->mode_config.connector_list,
+			    head) {
+		struct psb_intel_encoder *psb_intel_encoder =
+			psb_intel_attached_encoder(connector);
+		struct drm_encoder *encoder = &psb_intel_encoder->base;
+		int crtc_mask = 0, clone_mask = 0;
+
+		/* valid crtcs */
+		switch (psb_intel_encoder->type) {
+		case INTEL_OUTPUT_ANALOG:
+			crtc_mask = (1 << 0);
+			clone_mask = (1 << INTEL_OUTPUT_ANALOG);
+			break;
+		case INTEL_OUTPUT_SDVO:
+			crtc_mask = ((1 << 0) | (1 << 1));
+			clone_mask = (1 << INTEL_OUTPUT_SDVO);
+			break;
+		case INTEL_OUTPUT_LVDS:
+			if (IS_MRST(dev))
+				crtc_mask = (1 << 0);
+			else
+				crtc_mask = (1 << 1);
+			clone_mask = (1 << INTEL_OUTPUT_LVDS);
+			break;
+		case INTEL_OUTPUT_MIPI:
+			crtc_mask = (1 << 0);
+			clone_mask = (1 << INTEL_OUTPUT_MIPI);
+			break;
+		case INTEL_OUTPUT_MIPI2:
+			crtc_mask = (1 << 2);
+			clone_mask = (1 << INTEL_OUTPUT_MIPI2);
+			break;
+		case INTEL_OUTPUT_HDMI:
+			if (IS_MFLD(dev))
+				crtc_mask = (1 << 1);
+			else	
+				crtc_mask = (1 << 0);
+			clone_mask = (1 << INTEL_OUTPUT_HDMI);
+			break;
+		}
+		encoder->possible_crtcs = crtc_mask;
+		encoder->possible_clones =
+		    psb_intel_connector_clones(dev, clone_mask);
+	}
+}
+
+void psb_modeset_init(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct psb_intel_mode_device *mode_dev = &dev_priv->mode_dev;
+	int i;
+
+	drm_mode_config_init(dev);
+
+	dev->mode_config.min_width = 0;
+	dev->mode_config.min_height = 0;
+
+	dev->mode_config.funcs = (void *) &psb_mode_funcs;
+
+	/* set memory base */
+	/* Oaktrail and Poulsbo should use BAR 2*/
+	pci_read_config_dword(dev->pdev, PSB_BSM, (u32 *)
+					&(dev->mode_config.fb_base));
+
+	/* num pipes is 2 for PSB but 1 for Mrst */
+	for (i = 0; i < dev_priv->num_pipe; i++)
+		psb_intel_crtc_init(dev, i, mode_dev);
+
+	dev->mode_config.max_width = 2048;
+	dev->mode_config.max_height = 2048;
+
+	psb_setup_outputs(dev);
+}
+
+void psb_modeset_cleanup(struct drm_device *dev)
+{
+	mutex_lock(&dev->struct_mutex);
+
+	drm_kms_helper_poll_fini(dev);
+	psb_fbdev_fini(dev);
+	drm_mode_config_cleanup(dev);
+
+	mutex_unlock(&dev->struct_mutex);
+}
diff --git a/drivers/gpu/drm/gma500/framebuffer.h b/drivers/gpu/drm/gma500/framebuffer.h
new file mode 100644
index 000000000000..989558a9e6ee
--- /dev/null
+++ b/drivers/gpu/drm/gma500/framebuffer.h
@@ -0,0 +1,47 @@
+/*
+ * Copyright (c) 2008-2011, Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Authors:
+ *      Eric Anholt <eric@anholt.net>
+ *
+ */
+
+#ifndef _FRAMEBUFFER_H_
+#define _FRAMEBUFFER_H_
+
+#include <drm/drmP.h>
+#include <drm/drm_fb_helper.h>
+
+#include "psb_drv.h"
+
+struct psb_framebuffer {
+	struct drm_framebuffer base;
+	struct address_space *addr_space;
+	struct fb_info *fbdev;
+	struct gtt_range *gtt;
+};
+
+struct psb_fbdev {
+	struct drm_fb_helper psb_fb_helper;
+	struct psb_framebuffer pfb;
+};
+
+#define to_psb_fb(x) container_of(x, struct psb_framebuffer, base)
+
+extern int psb_intel_connector_clones(struct drm_device *dev, int type_mask);
+
+#endif
+
diff --git a/drivers/gpu/drm/gma500/gem.c b/drivers/gpu/drm/gma500/gem.c
new file mode 100644
index 000000000000..9fbb86868e2e
--- /dev/null
+++ b/drivers/gpu/drm/gma500/gem.c
@@ -0,0 +1,292 @@
+/*
+ *  psb GEM interface
+ *
+ * Copyright (c) 2011, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Authors: Alan Cox
+ *
+ * TODO:
+ *	-	we need to work out if the MMU is relevant (eg for
+ *		accelerated operations on a GEM object)
+ */
+
+#include <drm/drmP.h>
+#include <drm/drm.h>
+#include "gma_drm.h"
+#include "psb_drv.h"
+
+int psb_gem_init_object(struct drm_gem_object *obj)
+{
+	return -EINVAL;
+}
+
+void psb_gem_free_object(struct drm_gem_object *obj)
+{
+	struct gtt_range *gtt = container_of(obj, struct gtt_range, gem);
+	drm_gem_object_release_wrap(obj);
+	/* This must occur last as it frees up the memory of the GEM object */
+	psb_gtt_free_range(obj->dev, gtt);
+}
+
+int psb_gem_get_aperture(struct drm_device *dev, void *data,
+				struct drm_file *file)
+{
+	return -EINVAL;
+}
+
+/**
+ *	psb_gem_dumb_map_gtt	-	buffer mapping for dumb interface
+ *	@file: our drm client file
+ *	@dev: drm device
+ *	@handle: GEM handle to the object (from dumb_create)
+ *
+ *	Do the necessary setup to allow the mapping of the frame buffer
+ *	into user memory. We don't have to do much here at the moment.
+ */
+int psb_gem_dumb_map_gtt(struct drm_file *file, struct drm_device *dev,
+			 uint32_t handle, uint64_t *offset)
+{
+	int ret = 0;
+	struct drm_gem_object *obj;
+
+	if (!(dev->driver->driver_features & DRIVER_GEM))
+		return -ENODEV;
+
+	mutex_lock(&dev->struct_mutex);
+
+	/* GEM does all our handle to object mapping */
+	obj = drm_gem_object_lookup(dev, file, handle);
+	if (obj == NULL) {
+		ret = -ENOENT;
+		goto unlock;
+	}
+	/* What validation is needed here ? */
+
+	/* Make it mmapable */
+	if (!obj->map_list.map) {
+		ret = gem_create_mmap_offset(obj);
+		if (ret)
+			goto out;
+	}
+	/* GEM should really work out the hash offsets for us */
+	*offset = (u64)obj->map_list.hash.key << PAGE_SHIFT;
+out:
+	drm_gem_object_unreference(obj);
+unlock:
+	mutex_unlock(&dev->struct_mutex);
+	return ret;
+}
+
+/**
+ *	psb_gem_create		-	create a mappable object
+ *	@file: the DRM file of the client
+ *	@dev: our device
+ *	@size: the size requested
+ *	@handlep: returned handle (opaque number)
+ *
+ *	Create a GEM object, fill in the boilerplate and attach a handle to
+ *	it so that userspace can speak about it. This does the core work
+ *	for the various methods that do/will create GEM objects for things
+ */
+static int psb_gem_create(struct drm_file *file,
+	struct drm_device *dev, uint64_t size, uint32_t *handlep)
+{
+	struct gtt_range *r;
+	int ret;
+	u32 handle;
+
+	size = roundup(size, PAGE_SIZE);
+
+	/* Allocate our object - for now a direct gtt range which is not
+	   stolen memory backed */
+	r = psb_gtt_alloc_range(dev, size, "gem", 0);
+	if (r == NULL) {
+		dev_err(dev->dev, "no memory for %lld byte GEM object\n", size);
+		return -ENOSPC;
+	}
+	/* Initialize the extra goodies GEM needs to do all the hard work */
+	if (drm_gem_object_init(dev, &r->gem, size) != 0) {
+		psb_gtt_free_range(dev, r);
+		/* GEM doesn't give an error code so use -ENOMEM */
+		dev_err(dev->dev, "GEM init failed for %lld\n", size);
+		return -ENOMEM;
+	}
+	/* Give the object a handle so we can carry it more easily */
+	ret = drm_gem_handle_create(file, &r->gem, &handle);
+	if (ret) {
+		dev_err(dev->dev, "GEM handle failed for %p, %lld\n",
+							&r->gem, size);
+		drm_gem_object_release(&r->gem);
+		psb_gtt_free_range(dev, r);
+		return ret;
+	}
+	/* We have the initial and handle reference but need only one now */
+	drm_gem_object_unreference(&r->gem);
+	*handlep = handle;
+	return 0;
+}
+
+/**
+ *	psb_gem_dumb_create	-	create a dumb buffer
+ *	@drm_file: our client file
+ *	@dev: our device
+ *	@args: the requested arguments copied from userspace
+ *
+ *	Allocate a buffer suitable for use for a frame buffer of the
+ *	form described by user space. Give userspace a handle by which
+ *	to reference it.
+ */
+int psb_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
+			struct drm_mode_create_dumb *args)
+{
+	args->pitch = ALIGN(args->width * ((args->bpp + 7) / 8), 64);
+	args->size = args->pitch * args->height;
+	return psb_gem_create(file, dev, args->size, &args->handle);
+}
+
+/**
+ *	psb_gem_dumb_destroy	-	destroy a dumb buffer
+ *	@file: client file
+ *	@dev: our DRM device
+ *	@handle: the object handle
+ *
+ *	Destroy a handle that was created via psb_gem_dumb_create, at least
+ *	we hope it was created that way. i915 seems to assume the caller
+ *	does the checking but that might be worth review ! FIXME
+ */
+int psb_gem_dumb_destroy(struct drm_file *file, struct drm_device *dev,
+			uint32_t handle)
+{
+	/* No special work needed, drop the reference and see what falls out */
+	return drm_gem_handle_delete(file, handle);
+}
+
+/**
+ *	psb_gem_fault		-	pagefault handler for GEM objects
+ *	@vma: the VMA of the GEM object
+ *	@vmf: fault detail
+ *
+ *	Invoked when a fault occurs on an mmap of a GEM managed area. GEM
+ *	does most of the work for us including the actual map/unmap calls
+ *	but we need to do the actual page work.
+ *
+ *	This code eventually needs to handle faulting objects in and out
+ *	of the GTT and repacking it when we run out of space. We can put
+ *	that off for now and for our simple uses
+ *
+ *	The VMA was set up by GEM. In doing so it also ensured that the
+ *	vma->vm_private_data points to the GEM object that is backing this
+ *	mapping.
+ */
+int psb_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+	struct drm_gem_object *obj;
+	struct gtt_range *r;
+	int ret;
+	unsigned long pfn;
+	pgoff_t page_offset;
+	struct drm_device *dev;
+	struct drm_psb_private *dev_priv;
+
+	obj = vma->vm_private_data;	/* GEM object */
+	dev = obj->dev;
+	dev_priv = dev->dev_private;
+
+	r = container_of(obj, struct gtt_range, gem);	/* Get the gtt range */
+
+	/* Make sure we don't parallel update on a fault, nor move or remove
+	   something from beneath our feet */
+	mutex_lock(&dev->struct_mutex);
+
+	/* For now the mmap pins the object and it stays pinned. As things
+	   stand that will do us no harm */
+	if (r->mmapping == 0) {
+		ret = psb_gtt_pin(r);
+		if (ret < 0) {
+			dev_err(dev->dev, "gma500: pin failed: %d\n", ret);
+			goto fail;
+		}
+		r->mmapping = 1;
+	}
+
+	/* Page relative to the VMA start - we must calculate this ourselves
+	   because vmf->pgoff is the fake GEM offset */
+	page_offset = ((unsigned long) vmf->virtual_address - vma->vm_start)
+				>> PAGE_SHIFT;
+
+	/* CPU view of the page, don't go via the GART for CPU writes */
+	if (r->stolen)
+		pfn = (dev_priv->stolen_base + r->offset) >> PAGE_SHIFT;
+	else
+		pfn = page_to_pfn(r->pages[page_offset]);
+	ret = vm_insert_pfn(vma, (unsigned long)vmf->virtual_address, pfn);
+
+fail:
+	mutex_unlock(&dev->struct_mutex);
+	switch (ret) {
+	case 0:
+	case -ERESTARTSYS:
+	case -EINTR:
+		return VM_FAULT_NOPAGE;
+	case -ENOMEM:
+		return VM_FAULT_OOM;
+	default:
+		return VM_FAULT_SIGBUS;
+	}
+}
+
+static int psb_gem_create_stolen(struct drm_file *file, struct drm_device *dev,
+						int size, u32 *handle)
+{
+	struct gtt_range *gtt = psb_gtt_alloc_range(dev, size, "gem", 1);
+	if (gtt == NULL)
+		return -ENOMEM;
+	if (drm_gem_private_object_init(dev, &gtt->gem, size) != 0)
+		goto free_gtt;
+	if (drm_gem_handle_create(file, &gtt->gem, handle) == 0)
+		return 0;
+free_gtt:
+	psb_gtt_free_range(dev, gtt);
+	return -ENOMEM;
+}
+
+/*
+ *	GEM interfaces for our specific client
+ */
+int psb_gem_create_ioctl(struct drm_device *dev, void *data,
+					struct drm_file *file)
+{
+	struct drm_psb_gem_create *args = data;
+	int ret;
+	if (args->flags & GMA_GEM_CREATE_STOLEN) {
+		ret = psb_gem_create_stolen(file, dev, args->size,
+							&args->handle);
+		if (ret == 0)
+			return 0;
+		/* Fall throguh */
+		args->flags &= ~GMA_GEM_CREATE_STOLEN;
+	}
+	return psb_gem_create(file, dev, args->size, &args->handle);
+}
+
+int psb_gem_mmap_ioctl(struct drm_device *dev, void *data,
+					struct drm_file *file)
+{
+	struct drm_psb_gem_mmap *args = data;
+	return dev->driver->dumb_map_offset(file, dev,
+						args->handle, &args->offset);
+}
+
diff --git a/drivers/gpu/drm/gma500/gem_glue.c b/drivers/gpu/drm/gma500/gem_glue.c
new file mode 100644
index 000000000000..daac12120653
--- /dev/null
+++ b/drivers/gpu/drm/gma500/gem_glue.c
@@ -0,0 +1,89 @@
+/**************************************************************************
+ * Copyright (c) 2011, Intel Corporation.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ **************************************************************************/
+
+#include <drm/drmP.h>
+#include <drm/drm.h>
+
+void drm_gem_object_release_wrap(struct drm_gem_object *obj)
+{
+	/* Remove the list map if one is present */
+	if (obj->map_list.map) {
+		struct drm_gem_mm *mm = obj->dev->mm_private;
+		struct drm_map_list *list = &obj->map_list;
+		drm_ht_remove_item(&mm->offset_hash, &list->hash);
+		drm_mm_put_block(list->file_offset_node);
+		kfree(list->map);
+		list->map = NULL;
+	}
+	drm_gem_object_release(obj);
+}
+
+/**
+ *	gem_create_mmap_offset		-	invent an mmap offset
+ *	@obj: our object
+ *
+ *	Standard implementation of offset generation for mmap as is
+ *	duplicated in several drivers. This belongs in GEM.
+ */
+int gem_create_mmap_offset(struct drm_gem_object *obj)
+{
+	struct drm_device *dev = obj->dev;
+	struct drm_gem_mm *mm = dev->mm_private;
+	struct drm_map_list *list;
+	struct drm_local_map *map;
+	int ret;
+
+	list = &obj->map_list;
+	list->map = kzalloc(sizeof(struct drm_map_list), GFP_KERNEL);
+	if (list->map == NULL)
+		return -ENOMEM;
+	map = list->map;
+	map->type = _DRM_GEM;
+	map->size = obj->size;
+	map->handle = obj;
+
+	list->file_offset_node = drm_mm_search_free(&mm->offset_manager,
+					obj->size / PAGE_SIZE, 0, 0);
+	if (!list->file_offset_node) {
+		dev_err(dev->dev, "failed to allocate offset for bo %d\n",
+								obj->name);
+		ret = -ENOSPC;
+		goto free_it;
+	}
+	list->file_offset_node = drm_mm_get_block(list->file_offset_node,
+					obj->size / PAGE_SIZE, 0);
+	if (!list->file_offset_node) {
+		ret = -ENOMEM;
+		goto free_it;
+	}
+	list->hash.key = list->file_offset_node->start;
+	ret = drm_ht_insert_item(&mm->offset_hash, &list->hash);
+	if (ret) {
+		dev_err(dev->dev, "failed to add to map hash\n");
+		goto free_mm;
+	}
+	return 0;
+
+free_mm:
+	drm_mm_put_block(list->file_offset_node);
+free_it:
+	kfree(list->map);
+	list->map = NULL;
+	return ret;
+}
diff --git a/drivers/gpu/drm/gma500/gem_glue.h b/drivers/gpu/drm/gma500/gem_glue.h
new file mode 100644
index 000000000000..ce5ce30f74db
--- /dev/null
+++ b/drivers/gpu/drm/gma500/gem_glue.h
@@ -0,0 +1,2 @@
+extern void drm_gem_object_release_wrap(struct drm_gem_object *obj);
+extern int gem_create_mmap_offset(struct drm_gem_object *obj);
diff --git a/drivers/gpu/drm/gma500/gtt.c b/drivers/gpu/drm/gma500/gtt.c
new file mode 100644
index 000000000000..e770bd190a5c
--- /dev/null
+++ b/drivers/gpu/drm/gma500/gtt.c
@@ -0,0 +1,553 @@
+/*
+ * Copyright (c) 2007, Intel Corporation.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Authors: Thomas Hellstrom <thomas-at-tungstengraphics.com>
+ *	    Alan Cox <alan@linux.intel.com>
+ */
+
+#include <drm/drmP.h>
+#include "psb_drv.h"
+
+
+/*
+ *	GTT resource allocator - manage page mappings in GTT space
+ */
+
+/**
+ *	psb_gtt_mask_pte	-	generate GTT pte entry
+ *	@pfn: page number to encode
+ *	@type: type of memory in the GTT
+ *
+ *	Set the GTT entry for the appropriate memory type.
+ */
+static inline uint32_t psb_gtt_mask_pte(uint32_t pfn, int type)
+{
+	uint32_t mask = PSB_PTE_VALID;
+
+	if (type & PSB_MMU_CACHED_MEMORY)
+		mask |= PSB_PTE_CACHED;
+	if (type & PSB_MMU_RO_MEMORY)
+		mask |= PSB_PTE_RO;
+	if (type & PSB_MMU_WO_MEMORY)
+		mask |= PSB_PTE_WO;
+
+	return (pfn << PAGE_SHIFT) | mask;
+}
+
+/**
+ *	psb_gtt_entry		-	find the GTT entries for a gtt_range
+ *	@dev: our DRM device
+ *	@r: our GTT range
+ *
+ *	Given a gtt_range object return the GTT offset of the page table
+ *	entries for this gtt_range
+ */
+u32 *psb_gtt_entry(struct drm_device *dev, struct gtt_range *r)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	unsigned long offset;
+
+	offset = r->resource.start - dev_priv->gtt_mem->start;
+
+	return dev_priv->gtt_map + (offset >> PAGE_SHIFT);
+}
+
+/**
+ *	psb_gtt_insert	-	put an object into the GTT
+ *	@dev: our DRM device
+ *	@r: our GTT range
+ *
+ *	Take our preallocated GTT range and insert the GEM object into
+ *	the GTT. This is protected via the gtt mutex which the caller
+ *	must hold.
+ */
+static int psb_gtt_insert(struct drm_device *dev, struct gtt_range *r)
+{
+	u32 *gtt_slot, pte;
+	struct page **pages;
+	int i;
+
+	if (r->pages == NULL) {
+		WARN_ON(1);
+		return -EINVAL;
+	}
+
+	WARN_ON(r->stolen);	/* refcount these maybe ? */
+
+	gtt_slot = psb_gtt_entry(dev, r);
+	pages = r->pages;
+
+	/* Make sure changes are visible to the GPU */
+	set_pages_array_uc(pages, r->npage);
+
+	/* Write our page entries into the GTT itself */
+	for (i = r->roll; i < r->npage; i++) {
+		pte = psb_gtt_mask_pte(page_to_pfn(r->pages[i]), 0);
+		iowrite32(pte, gtt_slot++);
+	}
+	for (i = 0; i < r->roll; i++) {
+		pte = psb_gtt_mask_pte(page_to_pfn(r->pages[i]), 0);
+		iowrite32(pte, gtt_slot++);
+	}
+	/* Make sure all the entries are set before we return */
+	ioread32(gtt_slot - 1);
+
+	return 0;
+}
+
+/**
+ *	psb_gtt_remove	-	remove an object from the GTT
+ *	@dev: our DRM device
+ *	@r: our GTT range
+ *
+ *	Remove a preallocated GTT range from the GTT. Overwrite all the
+ *	page table entries with the dummy page. This is protected via the gtt
+ *	mutex which the caller must hold.
+ */
+static void psb_gtt_remove(struct drm_device *dev, struct gtt_range *r)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	u32 *gtt_slot, pte;
+	int i;
+
+	WARN_ON(r->stolen);
+
+	gtt_slot = psb_gtt_entry(dev, r);
+	pte = psb_gtt_mask_pte(page_to_pfn(dev_priv->scratch_page), 0);
+
+	for (i = 0; i < r->npage; i++)
+		iowrite32(pte, gtt_slot++);
+	ioread32(gtt_slot - 1);
+	set_pages_array_wb(r->pages, r->npage);
+}
+
+/**
+ *	psb_gtt_roll	-	set scrolling position
+ *	@dev: our DRM device
+ *	@r: the gtt mapping we are using
+ *	@roll: roll offset
+ *
+ *	Roll an existing pinned mapping by moving the pages through the GTT.
+ *	This allows us to implement hardware scrolling on the consoles without
+ *	a 2D engine
+ */
+void psb_gtt_roll(struct drm_device *dev, struct gtt_range *r, int roll)
+{
+	u32 *gtt_slot, pte;
+	int i;
+
+	if (roll >= r->npage) {
+		WARN_ON(1);
+		return;
+	}
+
+	r->roll = roll;
+
+	/* Not currently in the GTT - no worry we will write the mapping at
+	   the right position when it gets pinned */
+	if (!r->stolen && !r->in_gart)
+		return;
+
+	gtt_slot = psb_gtt_entry(dev, r);
+
+	for (i = r->roll; i < r->npage; i++) {
+		pte = psb_gtt_mask_pte(page_to_pfn(r->pages[i]), 0);
+		iowrite32(pte, gtt_slot++);
+	}
+	for (i = 0; i < r->roll; i++) {
+		pte = psb_gtt_mask_pte(page_to_pfn(r->pages[i]), 0);
+		iowrite32(pte, gtt_slot++);
+	}
+	ioread32(gtt_slot - 1);
+}
+
+/**
+ *	psb_gtt_attach_pages	-	attach and pin GEM pages
+ *	@gt: the gtt range
+ *
+ *	Pin and build an in kernel list of the pages that back our GEM object.
+ *	While we hold this the pages cannot be swapped out. This is protected
+ *	via the gtt mutex which the caller must hold.
+ */
+static int psb_gtt_attach_pages(struct gtt_range *gt)
+{
+	struct inode *inode;
+	struct address_space *mapping;
+	int i;
+	struct page *p;
+	int pages = gt->gem.size / PAGE_SIZE;
+
+	WARN_ON(gt->pages);
+
+	/* This is the shared memory object that backs the GEM resource */
+	inode = gt->gem.filp->f_path.dentry->d_inode;
+	mapping = inode->i_mapping;
+
+	gt->pages = kmalloc(pages * sizeof(struct page *), GFP_KERNEL);
+	if (gt->pages == NULL)
+		return -ENOMEM;
+	gt->npage = pages;
+
+	for (i = 0; i < pages; i++) {
+		/* FIXME: needs updating as per mail from Hugh Dickins */
+		p = read_cache_page_gfp(mapping, i,
+					__GFP_COLD | GFP_KERNEL);
+		if (IS_ERR(p))
+			goto err;
+		gt->pages[i] = p;
+	}
+	return 0;
+
+err:
+	while (i--)
+		page_cache_release(gt->pages[i]);
+	kfree(gt->pages);
+	gt->pages = NULL;
+	return PTR_ERR(p);
+}
+
+/**
+ *	psb_gtt_detach_pages	-	attach and pin GEM pages
+ *	@gt: the gtt range
+ *
+ *	Undo the effect of psb_gtt_attach_pages. At this point the pages
+ *	must have been removed from the GTT as they could now be paged out
+ *	and move bus address. This is protected via the gtt mutex which the
+ *	caller must hold.
+ */
+static void psb_gtt_detach_pages(struct gtt_range *gt)
+{
+	int i;
+	for (i = 0; i < gt->npage; i++) {
+		/* FIXME: do we need to force dirty */
+		set_page_dirty(gt->pages[i]);
+		page_cache_release(gt->pages[i]);
+	}
+	kfree(gt->pages);
+	gt->pages = NULL;
+}
+
+/**
+ *	psb_gtt_pin		-	pin pages into the GTT
+ *	@gt: range to pin
+ *
+ *	Pin a set of pages into the GTT. The pins are refcounted so that
+ *	multiple pins need multiple unpins to undo.
+ *
+ *	Non GEM backed objects treat this as a no-op as they are always GTT
+ *	backed objects.
+ */
+int psb_gtt_pin(struct gtt_range *gt)
+{
+	int ret = 0;
+	struct drm_device *dev = gt->gem.dev;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+
+	mutex_lock(&dev_priv->gtt_mutex);
+
+	if (gt->in_gart == 0 && gt->stolen == 0) {
+		ret = psb_gtt_attach_pages(gt);
+		if (ret < 0)
+			goto out;
+		ret = psb_gtt_insert(dev, gt);
+		if (ret < 0) {
+			psb_gtt_detach_pages(gt);
+			goto out;
+		}
+	}
+	gt->in_gart++;
+out:
+	mutex_unlock(&dev_priv->gtt_mutex);
+	return ret;
+}
+
+/**
+ *	psb_gtt_unpin		-	Drop a GTT pin requirement
+ *	@gt: range to pin
+ *
+ *	Undoes the effect of psb_gtt_pin. On the last drop the GEM object
+ *	will be removed from the GTT which will also drop the page references
+ *	and allow the VM to clean up or page stuff.
+ *
+ *	Non GEM backed objects treat this as a no-op as they are always GTT
+ *	backed objects.
+ */
+void psb_gtt_unpin(struct gtt_range *gt)
+{
+	struct drm_device *dev = gt->gem.dev;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+
+	mutex_lock(&dev_priv->gtt_mutex);
+
+	WARN_ON(!gt->in_gart);
+
+	gt->in_gart--;
+	if (gt->in_gart == 0 && gt->stolen == 0) {
+		psb_gtt_remove(dev, gt);
+		psb_gtt_detach_pages(gt);
+	}
+	mutex_unlock(&dev_priv->gtt_mutex);
+}
+
+/*
+ *	GTT resource allocator - allocate and manage GTT address space
+ */
+
+/**
+ *	psb_gtt_alloc_range	-	allocate GTT address space
+ *	@dev: Our DRM device
+ *	@len: length (bytes) of address space required
+ *	@name: resource name
+ *	@backed: resource should be backed by stolen pages
+ *
+ *	Ask the kernel core to find us a suitable range of addresses
+ *	to use for a GTT mapping.
+ *
+ *	Returns a gtt_range structure describing the object, or NULL on
+ *	error. On successful return the resource is both allocated and marked
+ *	as in use.
+ */
+struct gtt_range *psb_gtt_alloc_range(struct drm_device *dev, int len,
+						const char *name, int backed)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct gtt_range *gt;
+	struct resource *r = dev_priv->gtt_mem;
+	int ret;
+	unsigned long start, end;
+
+	if (backed) {
+		/* The start of the GTT is the stolen pages */
+		start = r->start;
+		end = r->start + dev_priv->gtt.stolen_size - 1;
+	} else {
+		/* The rest we will use for GEM backed objects */
+		start = r->start + dev_priv->gtt.stolen_size;
+		end = r->end;
+	}
+
+	gt = kzalloc(sizeof(struct gtt_range), GFP_KERNEL);
+	if (gt == NULL)
+		return NULL;
+	gt->resource.name = name;
+	gt->stolen = backed;
+	gt->in_gart = backed;
+	gt->roll = 0;
+	/* Ensure this is set for non GEM objects */
+	gt->gem.dev = dev;
+	ret = allocate_resource(dev_priv->gtt_mem, &gt->resource,
+				len, start, end, PAGE_SIZE, NULL, NULL);
+	if (ret == 0) {
+		gt->offset = gt->resource.start - r->start;
+		return gt;
+	}
+	kfree(gt);
+	return NULL;
+}
+
+/**
+ *	psb_gtt_free_range	-	release GTT address space
+ *	@dev: our DRM device
+ *	@gt: a mapping created with psb_gtt_alloc_range
+ *
+ *	Release a resource that was allocated with psb_gtt_alloc_range. If the
+ *	object has been pinned by mmap users we clean this up here currently.
+ */
+void psb_gtt_free_range(struct drm_device *dev, struct gtt_range *gt)
+{
+	/* Undo the mmap pin if we are destroying the object */
+	if (gt->mmapping) {
+		psb_gtt_unpin(gt);
+		gt->mmapping = 0;
+	}
+	WARN_ON(gt->in_gart && !gt->stolen);
+	release_resource(&gt->resource);
+	kfree(gt);
+}
+
+void psb_gtt_alloc(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	init_rwsem(&dev_priv->gtt.sem);
+}
+
+void psb_gtt_takedown(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+
+	if (dev_priv->gtt_map) {
+		iounmap(dev_priv->gtt_map);
+		dev_priv->gtt_map = NULL;
+	}
+	if (dev_priv->gtt_initialized) {
+		pci_write_config_word(dev->pdev, PSB_GMCH_CTRL,
+				      dev_priv->gmch_ctrl);
+		PSB_WVDC32(dev_priv->pge_ctl, PSB_PGETBL_CTL);
+		(void) PSB_RVDC32(PSB_PGETBL_CTL);
+	}
+	if (dev_priv->vram_addr)
+		iounmap(dev_priv->gtt_map);
+}
+
+int psb_gtt_init(struct drm_device *dev, int resume)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	unsigned gtt_pages;
+	unsigned long stolen_size, vram_stolen_size;
+	unsigned i, num_pages;
+	unsigned pfn_base;
+	uint32_t vram_pages;
+	uint32_t dvmt_mode = 0;
+	struct psb_gtt *pg;
+
+	int ret = 0;
+	uint32_t pte;
+
+	mutex_init(&dev_priv->gtt_mutex);
+
+	psb_gtt_alloc(dev);
+	pg = &dev_priv->gtt;
+
+	/* Enable the GTT */
+	pci_read_config_word(dev->pdev, PSB_GMCH_CTRL, &dev_priv->gmch_ctrl);
+	pci_write_config_word(dev->pdev, PSB_GMCH_CTRL,
+			      dev_priv->gmch_ctrl | _PSB_GMCH_ENABLED);
+
+	dev_priv->pge_ctl = PSB_RVDC32(PSB_PGETBL_CTL);
+	PSB_WVDC32(dev_priv->pge_ctl | _PSB_PGETBL_ENABLED, PSB_PGETBL_CTL);
+	(void) PSB_RVDC32(PSB_PGETBL_CTL);
+
+	/* The root resource we allocate address space from */
+	dev_priv->gtt_initialized = 1;
+
+	pg->gtt_phys_start = dev_priv->pge_ctl & PAGE_MASK;
+
+	/*
+	 *	The video mmu has a hw bug when accessing 0x0D0000000.
+	 *	Make gatt start at 0x0e000,0000. This doesn't actually
+	 *	matter for us but may do if the video acceleration ever
+	 *	gets opened up.
+	 */
+	pg->mmu_gatt_start = 0xE0000000;
+
+	pg->gtt_start = pci_resource_start(dev->pdev, PSB_GTT_RESOURCE);
+	gtt_pages = pci_resource_len(dev->pdev, PSB_GTT_RESOURCE)
+								>> PAGE_SHIFT;
+	/* Some CDV firmware doesn't report this currently. In which case the
+	   system has 64 gtt pages */
+	if (pg->gtt_start == 0 || gtt_pages == 0) {
+		dev_err(dev->dev, "GTT PCI BAR not initialized.\n");
+		gtt_pages = 64;
+		pg->gtt_start = dev_priv->pge_ctl;
+	}
+
+	pg->gatt_start = pci_resource_start(dev->pdev, PSB_GATT_RESOURCE);
+	pg->gatt_pages = pci_resource_len(dev->pdev, PSB_GATT_RESOURCE)
+								>> PAGE_SHIFT;
+	dev_priv->gtt_mem = &dev->pdev->resource[PSB_GATT_RESOURCE];
+
+	if (pg->gatt_pages == 0 || pg->gatt_start == 0) {
+		static struct resource fudge;	/* Preferably peppermint */
+		/* This can occur on CDV SDV systems. Fudge it in this case.
+		   We really don't care what imaginary space is being allocated
+		   at this point */
+		dev_err(dev->dev, "GATT PCI BAR not initialized.\n");
+		pg->gatt_start = 0x40000000;
+		pg->gatt_pages = (128 * 1024 * 1024) >> PAGE_SHIFT;
+		/* This is a little confusing but in fact the GTT is providing
+		   a view from the GPU into memory and not vice versa. As such
+		   this is really allocating space that is not the same as the
+		   CPU address space on CDV */
+		fudge.start = 0x40000000;
+		fudge.end = 0x40000000 + 128 * 1024 * 1024 - 1;
+		fudge.name = "fudge";
+		fudge.flags = IORESOURCE_MEM;
+		dev_priv->gtt_mem = &fudge;
+	}
+
+	pci_read_config_dword(dev->pdev, PSB_BSM, &dev_priv->stolen_base);
+	vram_stolen_size = pg->gtt_phys_start - dev_priv->stolen_base
+								- PAGE_SIZE;
+
+	stolen_size = vram_stolen_size;
+
+	printk(KERN_INFO "Stolen memory information\n");
+	printk(KERN_INFO "       base in RAM: 0x%x\n", dev_priv->stolen_base);
+	printk(KERN_INFO "       size: %luK, calculated by (GTT RAM base) - (Stolen base), seems wrong\n",
+		vram_stolen_size/1024);
+	dvmt_mode = (dev_priv->gmch_ctrl >> 4) & 0x7;
+	printk(KERN_INFO "      the correct size should be: %dM(dvmt mode=%d)\n",
+		(dvmt_mode == 1) ? 1 : (2 << (dvmt_mode - 1)), dvmt_mode);
+
+	if (resume && (gtt_pages != pg->gtt_pages) &&
+	    (stolen_size != pg->stolen_size)) {
+		dev_err(dev->dev, "GTT resume error.\n");
+		ret = -EINVAL;
+		goto out_err;
+	}
+
+	pg->gtt_pages = gtt_pages;
+	pg->stolen_size = stolen_size;
+	dev_priv->vram_stolen_size = vram_stolen_size;
+
+	/*
+	 *	Map the GTT and the stolen memory area
+	 */
+	dev_priv->gtt_map = ioremap_nocache(pg->gtt_phys_start,
+						gtt_pages << PAGE_SHIFT);
+	if (!dev_priv->gtt_map) {
+		dev_err(dev->dev, "Failure to map gtt.\n");
+		ret = -ENOMEM;
+		goto out_err;
+	}
+
+	dev_priv->vram_addr = ioremap_wc(dev_priv->stolen_base, stolen_size);
+	if (!dev_priv->vram_addr) {
+		dev_err(dev->dev, "Failure to map stolen base.\n");
+		ret = -ENOMEM;
+		goto out_err;
+	}
+
+	/*
+	 * Insert vram stolen pages into the GTT
+	 */
+
+	pfn_base = dev_priv->stolen_base >> PAGE_SHIFT;
+	vram_pages = num_pages = vram_stolen_size >> PAGE_SHIFT;
+	printk(KERN_INFO"Set up %d stolen pages starting at 0x%08x, GTT offset %dK\n",
+		num_pages, pfn_base << PAGE_SHIFT, 0);
+	for (i = 0; i < num_pages; ++i) {
+		pte = psb_gtt_mask_pte(pfn_base + i, 0);
+		iowrite32(pte, dev_priv->gtt_map + i);
+	}
+
+	/*
+	 * Init rest of GTT to the scratch page to avoid accidents or scribbles
+	 */
+
+	pfn_base = page_to_pfn(dev_priv->scratch_page);
+	pte = psb_gtt_mask_pte(pfn_base, 0);
+	for (; i < gtt_pages; ++i)
+		iowrite32(pte, dev_priv->gtt_map + i);
+
+	(void) ioread32(dev_priv->gtt_map + i - 1);
+	return 0;
+
+out_err:
+	psb_gtt_takedown(dev);
+	return ret;
+}
diff --git a/drivers/gpu/drm/gma500/gtt.h b/drivers/gpu/drm/gma500/gtt.h
new file mode 100644
index 000000000000..aa1742387f5a
--- /dev/null
+++ b/drivers/gpu/drm/gma500/gtt.h
@@ -0,0 +1,64 @@
+/**************************************************************************
+ * Copyright (c) 2007-2008, Intel Corporation.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ **************************************************************************/
+
+#ifndef _PSB_GTT_H_
+#define _PSB_GTT_H_
+
+#include <drm/drmP.h>
+
+/* This wants cleaning up with respect to the psb_dev and un-needed stuff */
+struct psb_gtt {
+	uint32_t gatt_start;
+	uint32_t mmu_gatt_start;
+	uint32_t gtt_start;
+	uint32_t gtt_phys_start;
+	unsigned gtt_pages;
+	unsigned gatt_pages;
+	unsigned long stolen_size;
+	unsigned long vram_stolen_size;
+	struct rw_semaphore sem;
+};
+
+/* Exported functions */
+extern int psb_gtt_init(struct drm_device *dev, int resume);
+extern void psb_gtt_takedown(struct drm_device *dev);
+
+/* Each gtt_range describes an allocation in the GTT area */
+struct gtt_range {
+	struct resource resource;	/* Resource for our allocation */
+	u32 offset;			/* GTT offset of our object */
+	struct drm_gem_object gem;	/* GEM high level stuff */
+	int in_gart;			/* Currently in the GART (ref ct) */
+	bool stolen;			/* Backed from stolen RAM */
+	bool mmapping;			/* Is mmappable */
+	struct page **pages;		/* Backing pages if present */
+	int npage;			/* Number of backing pages */
+	int roll;			/* Roll applied to the GTT entries */
+};
+
+extern struct gtt_range *psb_gtt_alloc_range(struct drm_device *dev, int len,
+						const char *name, int backed);
+extern void psb_gtt_kref_put(struct gtt_range *gt);
+extern void psb_gtt_free_range(struct drm_device *dev, struct gtt_range *gt);
+extern int psb_gtt_pin(struct gtt_range *gt);
+extern void psb_gtt_unpin(struct gtt_range *gt);
+extern void psb_gtt_roll(struct drm_device *dev,
+					struct gtt_range *gt, int roll);
+
+#endif
diff --git a/drivers/gpu/drm/gma500/intel_bios.c b/drivers/gpu/drm/gma500/intel_bios.c
new file mode 100644
index 000000000000..d4d0c5b8bf91
--- /dev/null
+++ b/drivers/gpu/drm/gma500/intel_bios.c
@@ -0,0 +1,303 @@
+/*
+ * Copyright (c) 2006 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Authors:
+ *    Eric Anholt <eric@anholt.net>
+ *
+ */
+#include <drm/drmP.h>
+#include <drm/drm.h>
+#include "gma_drm.h"
+#include "psb_drv.h"
+#include "psb_intel_drv.h"
+#include "psb_intel_reg.h"
+#include "intel_bios.h"
+
+
+static void *find_section(struct bdb_header *bdb, int section_id)
+{
+	u8 *base = (u8 *)bdb;
+	int index = 0;
+	u16 total, current_size;
+	u8 current_id;
+
+	/* skip to first section */
+	index += bdb->header_size;
+	total = bdb->bdb_size;
+
+	/* walk the sections looking for section_id */
+	while (index < total) {
+		current_id = *(base + index);
+		index++;
+		current_size = *((u16 *)(base + index));
+		index += 2;
+		if (current_id == section_id)
+			return base + index;
+		index += current_size;
+	}
+
+	return NULL;
+}
+
+static void fill_detail_timing_data(struct drm_display_mode *panel_fixed_mode,
+			struct lvds_dvo_timing *dvo_timing)
+{
+	panel_fixed_mode->hdisplay = (dvo_timing->hactive_hi << 8) |
+		dvo_timing->hactive_lo;
+	panel_fixed_mode->hsync_start = panel_fixed_mode->hdisplay +
+		((dvo_timing->hsync_off_hi << 8) | dvo_timing->hsync_off_lo);
+	panel_fixed_mode->hsync_end = panel_fixed_mode->hsync_start +
+		dvo_timing->hsync_pulse_width;
+	panel_fixed_mode->htotal = panel_fixed_mode->hdisplay +
+		((dvo_timing->hblank_hi << 8) | dvo_timing->hblank_lo);
+
+	panel_fixed_mode->vdisplay = (dvo_timing->vactive_hi << 8) |
+		dvo_timing->vactive_lo;
+	panel_fixed_mode->vsync_start = panel_fixed_mode->vdisplay +
+		dvo_timing->vsync_off;
+	panel_fixed_mode->vsync_end = panel_fixed_mode->vsync_start +
+		dvo_timing->vsync_pulse_width;
+	panel_fixed_mode->vtotal = panel_fixed_mode->vdisplay +
+		((dvo_timing->vblank_hi << 8) | dvo_timing->vblank_lo);
+	panel_fixed_mode->clock = dvo_timing->clock * 10;
+	panel_fixed_mode->type = DRM_MODE_TYPE_PREFERRED;
+
+	/* Some VBTs have bogus h/vtotal values */
+	if (panel_fixed_mode->hsync_end > panel_fixed_mode->htotal)
+		panel_fixed_mode->htotal = panel_fixed_mode->hsync_end + 1;
+	if (panel_fixed_mode->vsync_end > panel_fixed_mode->vtotal)
+		panel_fixed_mode->vtotal = panel_fixed_mode->vsync_end + 1;
+
+	drm_mode_set_name(panel_fixed_mode);
+}
+
+static void parse_backlight_data(struct drm_psb_private *dev_priv,
+				struct bdb_header *bdb)
+{
+	struct bdb_lvds_backlight *vbt_lvds_bl = NULL;
+	struct bdb_lvds_backlight *lvds_bl;
+	u8 p_type = 0;
+	void *bl_start = NULL;
+	struct bdb_lvds_options *lvds_opts
+				= find_section(bdb, BDB_LVDS_OPTIONS);
+
+	dev_priv->lvds_bl = NULL;
+
+	if (lvds_opts)
+		p_type = lvds_opts->panel_type;
+	else
+		return;
+
+	bl_start = find_section(bdb, BDB_LVDS_BACKLIGHT);
+	vbt_lvds_bl = (struct bdb_lvds_backlight *)(bl_start + 1) + p_type;
+
+	lvds_bl = kzalloc(sizeof(*vbt_lvds_bl), GFP_KERNEL);
+	if (!lvds_bl) {
+		dev_err(dev_priv->dev->dev, "out of memory for backlight data\n");
+		return;
+	}
+	memcpy(lvds_bl, vbt_lvds_bl, sizeof(*vbt_lvds_bl));
+	dev_priv->lvds_bl = lvds_bl;
+}
+
+/* Try to find integrated panel data */
+static void parse_lfp_panel_data(struct drm_psb_private *dev_priv,
+			    struct bdb_header *bdb)
+{
+	struct bdb_lvds_options *lvds_options;
+	struct bdb_lvds_lfp_data *lvds_lfp_data;
+	struct bdb_lvds_lfp_data_entry *entry;
+	struct lvds_dvo_timing *dvo_timing;
+	struct drm_display_mode *panel_fixed_mode;
+
+	/* Defaults if we can't find VBT info */
+	dev_priv->lvds_dither = 0;
+	dev_priv->lvds_vbt = 0;
+
+	lvds_options = find_section(bdb, BDB_LVDS_OPTIONS);
+	if (!lvds_options)
+		return;
+
+	dev_priv->lvds_dither = lvds_options->pixel_dither;
+	if (lvds_options->panel_type == 0xff)
+		return;
+
+	lvds_lfp_data = find_section(bdb, BDB_LVDS_LFP_DATA);
+	if (!lvds_lfp_data)
+		return;
+
+
+	entry = &lvds_lfp_data->data[lvds_options->panel_type];
+	dvo_timing = &entry->dvo_timing;
+
+	panel_fixed_mode = kzalloc(sizeof(*panel_fixed_mode),
+				      GFP_KERNEL);
+	if (panel_fixed_mode == NULL) {
+		dev_err(dev_priv->dev->dev, "out of memory for fixed panel mode\n");
+		return;
+	}
+
+	dev_priv->lvds_vbt = 1;
+	fill_detail_timing_data(panel_fixed_mode, dvo_timing);
+
+	if (panel_fixed_mode->htotal > 0 && panel_fixed_mode->vtotal > 0) {
+		dev_priv->lfp_lvds_vbt_mode = panel_fixed_mode;
+		drm_mode_debug_printmodeline(panel_fixed_mode);
+	} else {
+		dev_dbg(dev_priv->dev->dev, "ignoring invalid LVDS VBT\n");
+		dev_priv->lvds_vbt = 0;
+		kfree(panel_fixed_mode);
+	}
+	return;
+}
+
+/* Try to find sdvo panel data */
+static void parse_sdvo_panel_data(struct drm_psb_private *dev_priv,
+		      struct bdb_header *bdb)
+{
+	struct bdb_sdvo_lvds_options *sdvo_lvds_options;
+	struct lvds_dvo_timing *dvo_timing;
+	struct drm_display_mode *panel_fixed_mode;
+
+	dev_priv->sdvo_lvds_vbt_mode = NULL;
+
+	sdvo_lvds_options = find_section(bdb, BDB_SDVO_LVDS_OPTIONS);
+	if (!sdvo_lvds_options)
+		return;
+
+	dvo_timing = find_section(bdb, BDB_SDVO_PANEL_DTDS);
+	if (!dvo_timing)
+		return;
+
+	panel_fixed_mode = kzalloc(sizeof(*panel_fixed_mode), GFP_KERNEL);
+
+	if (!panel_fixed_mode)
+		return;
+
+	fill_detail_timing_data(panel_fixed_mode,
+			dvo_timing + sdvo_lvds_options->panel_type);
+
+	dev_priv->sdvo_lvds_vbt_mode = panel_fixed_mode;
+
+	return;
+}
+
+static void parse_general_features(struct drm_psb_private *dev_priv,
+		       struct bdb_header *bdb)
+{
+	struct bdb_general_features *general;
+
+	/* Set sensible defaults in case we can't find the general block */
+	dev_priv->int_tv_support = 1;
+	dev_priv->int_crt_support = 1;
+
+	general = find_section(bdb, BDB_GENERAL_FEATURES);
+	if (general) {
+		dev_priv->int_tv_support = general->int_tv_support;
+		dev_priv->int_crt_support = general->int_crt_support;
+		dev_priv->lvds_use_ssc = general->enable_ssc;
+
+		if (dev_priv->lvds_use_ssc) {
+			dev_priv->lvds_ssc_freq
+				= general->ssc_freq ? 100 : 96;
+		}
+	}
+}
+
+/**
+ * psb_intel_init_bios - initialize VBIOS settings & find VBT
+ * @dev: DRM device
+ *
+ * Loads the Video BIOS and checks that the VBT exists.  Sets scratch registers
+ * to appropriate values.
+ *
+ * VBT existence is a sanity check that is relied on by other i830_bios.c code.
+ * Note that it would be better to use a BIOS call to get the VBT, as BIOSes may
+ * feed an updated VBT back through that, compared to what we'll fetch using
+ * this method of groping around in the BIOS data.
+ *
+ * Returns 0 on success, nonzero on failure.
+ */
+bool psb_intel_init_bios(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct pci_dev *pdev = dev->pdev;
+	struct vbt_header *vbt = NULL;
+	struct bdb_header *bdb;
+	u8 __iomem *bios;
+	size_t size;
+	int i;
+
+	bios = pci_map_rom(pdev, &size);
+	if (!bios)
+		return -1;
+
+	/* Scour memory looking for the VBT signature */
+	for (i = 0; i + 4 < size; i++) {
+		if (!memcmp(bios + i, "$VBT", 4)) {
+			vbt = (struct vbt_header *)(bios + i);
+			break;
+		}
+	}
+
+	if (!vbt) {
+		dev_err(dev->dev, "VBT signature missing\n");
+		pci_unmap_rom(pdev, bios);
+		return -1;
+	}
+
+	bdb = (struct bdb_header *)(bios + i + vbt->bdb_offset);
+
+	/* Grab useful general definitions */
+	parse_general_features(dev_priv, bdb);
+	parse_lfp_panel_data(dev_priv, bdb);
+	parse_sdvo_panel_data(dev_priv, bdb);
+	parse_backlight_data(dev_priv, bdb);
+
+	pci_unmap_rom(pdev, bios);
+
+	return 0;
+}
+
+/**
+ * Destroy and free VBT data
+ */
+void psb_intel_destroy_bios(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct drm_display_mode *sdvo_lvds_vbt_mode =
+				dev_priv->sdvo_lvds_vbt_mode;
+	struct drm_display_mode *lfp_lvds_vbt_mode =
+				dev_priv->lfp_lvds_vbt_mode;
+	struct bdb_lvds_backlight *lvds_bl =
+				dev_priv->lvds_bl;
+
+	/*free sdvo panel mode*/
+	if (sdvo_lvds_vbt_mode) {
+		dev_priv->sdvo_lvds_vbt_mode = NULL;
+		kfree(sdvo_lvds_vbt_mode);
+	}
+
+	if (lfp_lvds_vbt_mode) {
+		dev_priv->lfp_lvds_vbt_mode = NULL;
+		kfree(lfp_lvds_vbt_mode);
+	}
+
+	if (lvds_bl) {
+		dev_priv->lvds_bl = NULL;
+		kfree(lvds_bl);
+	}
+}
diff --git a/drivers/gpu/drm/gma500/intel_bios.h b/drivers/gpu/drm/gma500/intel_bios.h
new file mode 100644
index 000000000000..70f1bf018183
--- /dev/null
+++ b/drivers/gpu/drm/gma500/intel_bios.h
@@ -0,0 +1,430 @@
+/*
+ * Copyright (c) 2006 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Authors:
+ *    Eric Anholt <eric@anholt.net>
+ *
+ */
+
+#ifndef _I830_BIOS_H_
+#define _I830_BIOS_H_
+
+#include <drm/drmP.h>
+
+struct vbt_header {
+	u8 signature[20];		/**< Always starts with 'VBT$' */
+	u16 version;			/**< decimal */
+	u16 header_size;		/**< in bytes */
+	u16 vbt_size;			/**< in bytes */
+	u8 vbt_checksum;
+	u8 reserved0;
+	u32 bdb_offset;			/**< from beginning of VBT */
+	u32 aim_offset[4];		/**< from beginning of VBT */
+} __attribute__((packed));
+
+
+struct bdb_header {
+	u8 signature[16];		/**< Always 'BIOS_DATA_BLOCK' */
+	u16 version;			/**< decimal */
+	u16 header_size;		/**< in bytes */
+	u16 bdb_size;			/**< in bytes */
+};
+
+/* strictly speaking, this is a "skip" block, but it has interesting info */
+struct vbios_data {
+	u8 type; /* 0 == desktop, 1 == mobile */
+	u8 relstage;
+	u8 chipset;
+	u8 lvds_present:1;
+	u8 tv_present:1;
+	u8 rsvd2:6; /* finish byte */
+	u8 rsvd3[4];
+	u8 signon[155];
+	u8 copyright[61];
+	u16 code_segment;
+	u8 dos_boot_mode;
+	u8 bandwidth_percent;
+	u8 rsvd4; /* popup memory size */
+	u8 resize_pci_bios;
+	u8 rsvd5; /* is crt already on ddc2 */
+} __attribute__((packed));
+
+/*
+ * There are several types of BIOS data blocks (BDBs), each block has
+ * an ID and size in the first 3 bytes (ID in first, size in next 2).
+ * Known types are listed below.
+ */
+#define BDB_GENERAL_FEATURES	  1
+#define BDB_GENERAL_DEFINITIONS	  2
+#define BDB_OLD_TOGGLE_LIST	  3
+#define BDB_MODE_SUPPORT_LIST	  4
+#define BDB_GENERIC_MODE_TABLE	  5
+#define BDB_EXT_MMIO_REGS	  6
+#define BDB_SWF_IO		  7
+#define BDB_SWF_MMIO		  8
+#define BDB_DOT_CLOCK_TABLE	  9
+#define BDB_MODE_REMOVAL_TABLE	 10
+#define BDB_CHILD_DEVICE_TABLE	 11
+#define BDB_DRIVER_FEATURES	 12
+#define BDB_DRIVER_PERSISTENCE	 13
+#define BDB_EXT_TABLE_PTRS	 14
+#define BDB_DOT_CLOCK_OVERRIDE	 15
+#define BDB_DISPLAY_SELECT	 16
+/* 17 rsvd */
+#define BDB_DRIVER_ROTATION	 18
+#define BDB_DISPLAY_REMOVE	 19
+#define BDB_OEM_CUSTOM		 20
+#define BDB_EFP_LIST		 21 /* workarounds for VGA hsync/vsync */
+#define BDB_SDVO_LVDS_OPTIONS	 22
+#define BDB_SDVO_PANEL_DTDS	 23
+#define BDB_SDVO_LVDS_PNP_IDS	 24
+#define BDB_SDVO_LVDS_POWER_SEQ	 25
+#define BDB_TV_OPTIONS		 26
+#define BDB_LVDS_OPTIONS	 40
+#define BDB_LVDS_LFP_DATA_PTRS	 41
+#define BDB_LVDS_LFP_DATA	 42
+#define BDB_LVDS_BACKLIGHT	 43
+#define BDB_LVDS_POWER		 44
+#define BDB_SKIP		254 /* VBIOS private block, ignore */
+
+struct bdb_general_features {
+	/* bits 1 */
+	u8 panel_fitting:2;
+	u8 flexaim:1;
+	u8 msg_enable:1;
+	u8 clear_screen:3;
+	u8 color_flip:1;
+
+	/* bits 2 */
+	u8 download_ext_vbt:1;
+	u8 enable_ssc:1;
+	u8 ssc_freq:1;
+	u8 enable_lfp_on_override:1;
+	u8 disable_ssc_ddt:1;
+	u8 rsvd8:3; /* finish byte */
+
+	/* bits 3 */
+	u8 disable_smooth_vision:1;
+	u8 single_dvi:1;
+	u8 rsvd9:6; /* finish byte */
+
+	/* bits 4 */
+	u8 legacy_monitor_detect;
+
+	/* bits 5 */
+	u8 int_crt_support:1;
+	u8 int_tv_support:1;
+	u8 rsvd11:6; /* finish byte */
+} __attribute__((packed));
+
+struct bdb_general_definitions {
+	/* DDC GPIO */
+	u8 crt_ddc_gmbus_pin;
+
+	/* DPMS bits */
+	u8 dpms_acpi:1;
+	u8 skip_boot_crt_detect:1;
+	u8 dpms_aim:1;
+	u8 rsvd1:5; /* finish byte */
+
+	/* boot device bits */
+	u8 boot_display[2];
+	u8 child_dev_size;
+
+	/* device info */
+	u8 tv_or_lvds_info[33];
+	u8 dev1[33];
+	u8 dev2[33];
+	u8 dev3[33];
+	u8 dev4[33];
+	/* may be another device block here on some platforms */
+};
+
+struct bdb_lvds_options {
+	u8 panel_type;
+	u8 rsvd1;
+	/* LVDS capabilities, stored in a dword */
+	u8 pfit_mode:2;
+	u8 pfit_text_mode_enhanced:1;
+	u8 pfit_gfx_mode_enhanced:1;
+	u8 pfit_ratio_auto:1;
+	u8 pixel_dither:1;
+	u8 lvds_edid:1;
+	u8 rsvd2:1;
+	u8 rsvd4;
+} __attribute__((packed));
+
+struct bdb_lvds_backlight {
+	u8 type:2;
+	u8 pol:1;
+	u8 gpio:3;
+	u8 gmbus:2;
+	u16 freq;
+	u8 minbrightness;
+	u8 i2caddr;
+	u8 brightnesscmd;
+	/*FIXME: more...*/
+} __attribute__((packed));
+
+/* LFP pointer table contains entries to the struct below */
+struct bdb_lvds_lfp_data_ptr {
+	u16 fp_timing_offset; /* offsets are from start of bdb */
+	u8 fp_table_size;
+	u16 dvo_timing_offset;
+	u8 dvo_table_size;
+	u16 panel_pnp_id_offset;
+	u8 pnp_table_size;
+} __attribute__((packed));
+
+struct bdb_lvds_lfp_data_ptrs {
+	u8 lvds_entries; /* followed by one or more lvds_data_ptr structs */
+	struct bdb_lvds_lfp_data_ptr ptr[16];
+} __attribute__((packed));
+
+/* LFP data has 3 blocks per entry */
+struct lvds_fp_timing {
+	u16 x_res;
+	u16 y_res;
+	u32 lvds_reg;
+	u32 lvds_reg_val;
+	u32 pp_on_reg;
+	u32 pp_on_reg_val;
+	u32 pp_off_reg;
+	u32 pp_off_reg_val;
+	u32 pp_cycle_reg;
+	u32 pp_cycle_reg_val;
+	u32 pfit_reg;
+	u32 pfit_reg_val;
+	u16 terminator;
+} __attribute__((packed));
+
+struct lvds_dvo_timing {
+	u16 clock;		/**< In 10khz */
+	u8 hactive_lo;
+	u8 hblank_lo;
+	u8 hblank_hi:4;
+	u8 hactive_hi:4;
+	u8 vactive_lo;
+	u8 vblank_lo;
+	u8 vblank_hi:4;
+	u8 vactive_hi:4;
+	u8 hsync_off_lo;
+	u8 hsync_pulse_width;
+	u8 vsync_pulse_width:4;
+	u8 vsync_off:4;
+	u8 rsvd0:6;
+	u8 hsync_off_hi:2;
+	u8 h_image;
+	u8 v_image;
+	u8 max_hv;
+	u8 h_border;
+	u8 v_border;
+	u8 rsvd1:3;
+	u8 digital:2;
+	u8 vsync_positive:1;
+	u8 hsync_positive:1;
+	u8 rsvd2:1;
+} __attribute__((packed));
+
+struct lvds_pnp_id {
+	u16 mfg_name;
+	u16 product_code;
+	u32 serial;
+	u8 mfg_week;
+	u8 mfg_year;
+} __attribute__((packed));
+
+struct bdb_lvds_lfp_data_entry {
+	struct lvds_fp_timing fp_timing;
+	struct lvds_dvo_timing dvo_timing;
+	struct lvds_pnp_id pnp_id;
+} __attribute__((packed));
+
+struct bdb_lvds_lfp_data {
+	struct bdb_lvds_lfp_data_entry data[16];
+} __attribute__((packed));
+
+struct aimdb_header {
+	char signature[16];
+	char oem_device[20];
+	u16 aimdb_version;
+	u16 aimdb_header_size;
+	u16 aimdb_size;
+} __attribute__((packed));
+
+struct aimdb_block {
+	u8 aimdb_id;
+	u16 aimdb_size;
+} __attribute__((packed));
+
+struct vch_panel_data {
+	u16 fp_timing_offset;
+	u8 fp_timing_size;
+	u16 dvo_timing_offset;
+	u8 dvo_timing_size;
+	u16 text_fitting_offset;
+	u8 text_fitting_size;
+	u16 graphics_fitting_offset;
+	u8 graphics_fitting_size;
+} __attribute__((packed));
+
+struct vch_bdb_22 {
+	struct aimdb_block aimdb_block;
+	struct vch_panel_data panels[16];
+} __attribute__((packed));
+
+struct bdb_sdvo_lvds_options {
+	u8 panel_backlight;
+	u8 h40_set_panel_type;
+	u8 panel_type;
+	u8 ssc_clk_freq;
+	u16 als_low_trip;
+	u16 als_high_trip;
+	u8 sclalarcoeff_tab_row_num;
+	u8 sclalarcoeff_tab_row_size;
+	u8 coefficient[8];
+	u8 panel_misc_bits_1;
+	u8 panel_misc_bits_2;
+	u8 panel_misc_bits_3;
+	u8 panel_misc_bits_4;
+} __attribute__((packed));
+
+
+extern bool psb_intel_init_bios(struct drm_device *dev);
+extern void psb_intel_destroy_bios(struct drm_device *dev);
+
+/*
+ * Driver<->VBIOS interaction occurs through scratch bits in
+ * GR18 & SWF*.
+ */
+
+/* GR18 bits are set on display switch and hotkey events */
+#define GR18_DRIVER_SWITCH_EN	(1<<7) /* 0: VBIOS control, 1: driver control */
+#define GR18_HOTKEY_MASK	0x78 /* See also SWF4 15:0 */
+#define   GR18_HK_NONE		(0x0<<3)
+#define   GR18_HK_LFP_STRETCH	(0x1<<3)
+#define   GR18_HK_TOGGLE_DISP	(0x2<<3)
+#define   GR18_HK_DISP_SWITCH	(0x4<<3) /* see SWF14 15:0 for what to enable */
+#define   GR18_HK_POPUP_DISABLED (0x6<<3)
+#define   GR18_HK_POPUP_ENABLED	(0x7<<3)
+#define   GR18_HK_PFIT		(0x8<<3)
+#define   GR18_HK_APM_CHANGE	(0xa<<3)
+#define   GR18_HK_MULTIPLE	(0xc<<3)
+#define GR18_USER_INT_EN	(1<<2)
+#define GR18_A0000_FLUSH_EN	(1<<1)
+#define GR18_SMM_EN		(1<<0)
+
+/* Set by driver, cleared by VBIOS */
+#define SWF00_YRES_SHIFT	16
+#define SWF00_XRES_SHIFT	0
+#define SWF00_RES_MASK		0xffff
+
+/* Set by VBIOS at boot time and driver at runtime */
+#define SWF01_TV2_FORMAT_SHIFT	8
+#define SWF01_TV1_FORMAT_SHIFT	0
+#define SWF01_TV_FORMAT_MASK	0xffff
+
+#define SWF10_VBIOS_BLC_I2C_EN	(1<<29)
+#define SWF10_GTT_OVERRIDE_EN	(1<<28)
+#define SWF10_LFP_DPMS_OVR	(1<<27) /* override DPMS on display switch */
+#define SWF10_ACTIVE_TOGGLE_LIST_MASK (7<<24)
+#define   SWF10_OLD_TOGGLE	0x0
+#define   SWF10_TOGGLE_LIST_1	0x1
+#define   SWF10_TOGGLE_LIST_2	0x2
+#define   SWF10_TOGGLE_LIST_3	0x3
+#define   SWF10_TOGGLE_LIST_4	0x4
+#define SWF10_PANNING_EN	(1<<23)
+#define SWF10_DRIVER_LOADED	(1<<22)
+#define SWF10_EXTENDED_DESKTOP	(1<<21)
+#define SWF10_EXCLUSIVE_MODE	(1<<20)
+#define SWF10_OVERLAY_EN	(1<<19)
+#define SWF10_PLANEB_HOLDOFF	(1<<18)
+#define SWF10_PLANEA_HOLDOFF	(1<<17)
+#define SWF10_VGA_HOLDOFF	(1<<16)
+#define SWF10_ACTIVE_DISP_MASK	0xffff
+#define   SWF10_PIPEB_LFP2	(1<<15)
+#define   SWF10_PIPEB_EFP2	(1<<14)
+#define   SWF10_PIPEB_TV2	(1<<13)
+#define   SWF10_PIPEB_CRT2	(1<<12)
+#define   SWF10_PIPEB_LFP	(1<<11)
+#define   SWF10_PIPEB_EFP	(1<<10)
+#define   SWF10_PIPEB_TV	(1<<9)
+#define   SWF10_PIPEB_CRT	(1<<8)
+#define   SWF10_PIPEA_LFP2	(1<<7)
+#define   SWF10_PIPEA_EFP2	(1<<6)
+#define   SWF10_PIPEA_TV2	(1<<5)
+#define   SWF10_PIPEA_CRT2	(1<<4)
+#define   SWF10_PIPEA_LFP	(1<<3)
+#define   SWF10_PIPEA_EFP	(1<<2)
+#define   SWF10_PIPEA_TV	(1<<1)
+#define   SWF10_PIPEA_CRT	(1<<0)
+
+#define SWF11_MEMORY_SIZE_SHIFT	16
+#define SWF11_SV_TEST_EN	(1<<15)
+#define SWF11_IS_AGP		(1<<14)
+#define SWF11_DISPLAY_HOLDOFF	(1<<13)
+#define SWF11_DPMS_REDUCED	(1<<12)
+#define SWF11_IS_VBE_MODE	(1<<11)
+#define SWF11_PIPEB_ACCESS	(1<<10) /* 0 here means pipe a */
+#define SWF11_DPMS_MASK		0x07
+#define   SWF11_DPMS_OFF	(1<<2)
+#define   SWF11_DPMS_SUSPEND	(1<<1)
+#define   SWF11_DPMS_STANDBY	(1<<0)
+#define   SWF11_DPMS_ON		0
+
+#define SWF14_GFX_PFIT_EN	(1<<31)
+#define SWF14_TEXT_PFIT_EN	(1<<30)
+#define SWF14_LID_STATUS_CLOSED	(1<<29) /* 0 here means open */
+#define SWF14_POPUP_EN		(1<<28)
+#define SWF14_DISPLAY_HOLDOFF	(1<<27)
+#define SWF14_DISP_DETECT_EN	(1<<26)
+#define SWF14_DOCKING_STATUS_DOCKED (1<<25) /* 0 here means undocked */
+#define SWF14_DRIVER_STATUS	(1<<24)
+#define SWF14_OS_TYPE_WIN9X	(1<<23)
+#define SWF14_OS_TYPE_WINNT	(1<<22)
+/* 21:19 rsvd */
+#define SWF14_PM_TYPE_MASK	0x00070000
+#define   SWF14_PM_ACPI_VIDEO	(0x4 << 16)
+#define   SWF14_PM_ACPI		(0x3 << 16)
+#define   SWF14_PM_APM_12	(0x2 << 16)
+#define   SWF14_PM_APM_11	(0x1 << 16)
+#define SWF14_HK_REQUEST_MASK	0x0000ffff /* see GR18 6:3 for event type */
+	  /* if GR18 indicates a display switch */
+#define   SWF14_DS_PIPEB_LFP2_EN (1<<15)
+#define   SWF14_DS_PIPEB_EFP2_EN (1<<14)
+#define   SWF14_DS_PIPEB_TV2_EN  (1<<13)
+#define   SWF14_DS_PIPEB_CRT2_EN (1<<12)
+#define   SWF14_DS_PIPEB_LFP_EN  (1<<11)
+#define   SWF14_DS_PIPEB_EFP_EN  (1<<10)
+#define   SWF14_DS_PIPEB_TV_EN	 (1<<9)
+#define   SWF14_DS_PIPEB_CRT_EN  (1<<8)
+#define   SWF14_DS_PIPEA_LFP2_EN (1<<7)
+#define   SWF14_DS_PIPEA_EFP2_EN (1<<6)
+#define   SWF14_DS_PIPEA_TV2_EN  (1<<5)
+#define   SWF14_DS_PIPEA_CRT2_EN (1<<4)
+#define   SWF14_DS_PIPEA_LFP_EN  (1<<3)
+#define   SWF14_DS_PIPEA_EFP_EN  (1<<2)
+#define   SWF14_DS_PIPEA_TV_EN	 (1<<1)
+#define   SWF14_DS_PIPEA_CRT_EN  (1<<0)
+	  /* if GR18 indicates a panel fitting request */
+#define   SWF14_PFIT_EN		(1<<0) /* 0 means disable */
+	  /* if GR18 indicates an APM change request */
+#define   SWF14_APM_HIBERNATE	0x4
+#define   SWF14_APM_SUSPEND	0x3
+#define   SWF14_APM_STANDBY	0x1
+#define   SWF14_APM_RESTORE	0x0
+
+#endif /* _I830_BIOS_H_ */
diff --git a/drivers/gpu/drm/gma500/intel_gmbus.c b/drivers/gpu/drm/gma500/intel_gmbus.c
new file mode 100644
index 000000000000..147584ac8d02
--- /dev/null
+++ b/drivers/gpu/drm/gma500/intel_gmbus.c
@@ -0,0 +1,493 @@
+/*
+ * Copyright (c) 2006 Dave Airlie <airlied@linux.ie>
+ * Copyright © 2006-2008,2010 Intel Corporation
+ *   Jesse Barnes <jesse.barnes@intel.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *	Eric Anholt <eric@anholt.net>
+ *	Chris Wilson <chris@chris-wilson.co.uk>
+ */
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/i2c-algo-bit.h>
+#include "drmP.h"
+#include "drm.h"
+#include "psb_intel_drv.h"
+#include "gma_drm.h"
+#include "psb_drv.h"
+#include "psb_intel_reg.h"
+
+#define _wait_for(COND, MS, W) ({ \
+	unsigned long timeout__ = jiffies + msecs_to_jiffies(MS);	\
+	int ret__ = 0;							\
+	while (! (COND)) {						\
+		if (time_after(jiffies, timeout__)) {			\
+			ret__ = -ETIMEDOUT;				\
+			break;						\
+		}							\
+		if (W && !(in_atomic() || in_dbg_master())) msleep(W);	\
+	}								\
+	ret__;								\
+})
+
+#define wait_for(COND, MS) _wait_for(COND, MS, 1)
+#define wait_for_atomic(COND, MS) _wait_for(COND, MS, 0)
+
+/* Intel GPIO access functions */
+
+#define I2C_RISEFALL_TIME 20
+
+static inline struct intel_gmbus *
+to_intel_gmbus(struct i2c_adapter *i2c)
+{
+	return container_of(i2c, struct intel_gmbus, adapter);
+}
+
+struct intel_gpio {
+	struct i2c_adapter adapter;
+	struct i2c_algo_bit_data algo;
+	struct drm_psb_private *dev_priv;
+	u32 reg;
+};
+
+void
+gma_intel_i2c_reset(struct drm_device *dev)
+{
+	REG_WRITE(GMBUS0, 0);
+}
+
+static void intel_i2c_quirk_set(struct drm_psb_private *dev_priv, bool enable)
+{
+	/* When using bit bashing for I2C, this bit needs to be set to 1 */
+	/* FIXME: We are never Pineview, right?
+
+	u32 val;
+
+	if (!IS_PINEVIEW(dev_priv->dev))
+		return;
+
+	val = REG_READ(DSPCLK_GATE_D);
+	if (enable)
+		val |= DPCUNIT_CLOCK_GATE_DISABLE;
+	else
+		val &= ~DPCUNIT_CLOCK_GATE_DISABLE;
+	REG_WRITE(DSPCLK_GATE_D, val);
+
+	return;
+	*/
+}
+
+static u32 get_reserved(struct intel_gpio *gpio)
+{
+	struct drm_psb_private *dev_priv = gpio->dev_priv;
+	struct drm_device *dev = dev_priv->dev;
+	u32 reserved = 0;
+
+	/* On most chips, these bits must be preserved in software. */
+	reserved = REG_READ(gpio->reg) &
+				     (GPIO_DATA_PULLUP_DISABLE |
+				      GPIO_CLOCK_PULLUP_DISABLE);
+
+	return reserved;
+}
+
+static int get_clock(void *data)
+{
+	struct intel_gpio *gpio = data;
+	struct drm_psb_private *dev_priv = gpio->dev_priv;
+	struct drm_device *dev = dev_priv->dev;
+	u32 reserved = get_reserved(gpio);
+	REG_WRITE(gpio->reg, reserved | GPIO_CLOCK_DIR_MASK);
+	REG_WRITE(gpio->reg, reserved);
+	return (REG_READ(gpio->reg) & GPIO_CLOCK_VAL_IN) != 0;
+}
+
+static int get_data(void *data)
+{
+	struct intel_gpio *gpio = data;
+	struct drm_psb_private *dev_priv = gpio->dev_priv;
+	struct drm_device *dev = dev_priv->dev;
+	u32 reserved = get_reserved(gpio);
+	REG_WRITE(gpio->reg, reserved | GPIO_DATA_DIR_MASK);
+	REG_WRITE(gpio->reg, reserved);
+	return (REG_READ(gpio->reg) & GPIO_DATA_VAL_IN) != 0;
+}
+
+static void set_clock(void *data, int state_high)
+{
+	struct intel_gpio *gpio = data;
+	struct drm_psb_private *dev_priv = gpio->dev_priv;
+	struct drm_device *dev = dev_priv->dev;
+	u32 reserved = get_reserved(gpio);
+	u32 clock_bits;
+
+	if (state_high)
+		clock_bits = GPIO_CLOCK_DIR_IN | GPIO_CLOCK_DIR_MASK;
+	else
+		clock_bits = GPIO_CLOCK_DIR_OUT | GPIO_CLOCK_DIR_MASK |
+			GPIO_CLOCK_VAL_MASK;
+
+	REG_WRITE(gpio->reg, reserved | clock_bits);
+	REG_READ(gpio->reg); /* Posting */
+}
+
+static void set_data(void *data, int state_high)
+{
+	struct intel_gpio *gpio = data;
+	struct drm_psb_private *dev_priv = gpio->dev_priv;
+	struct drm_device *dev = dev_priv->dev;
+	u32 reserved = get_reserved(gpio);
+	u32 data_bits;
+
+	if (state_high)
+		data_bits = GPIO_DATA_DIR_IN | GPIO_DATA_DIR_MASK;
+	else
+		data_bits = GPIO_DATA_DIR_OUT | GPIO_DATA_DIR_MASK |
+			GPIO_DATA_VAL_MASK;
+
+	REG_WRITE(gpio->reg, reserved | data_bits);
+	REG_READ(gpio->reg);
+}
+
+static struct i2c_adapter *
+intel_gpio_create(struct drm_psb_private *dev_priv, u32 pin)
+{
+	static const int map_pin_to_reg[] = {
+		0,
+		GPIOB,
+		GPIOA,
+		GPIOC,
+		GPIOD,
+		GPIOE,
+		0,
+		GPIOF,
+	};
+	struct intel_gpio *gpio;
+
+	if (pin >= ARRAY_SIZE(map_pin_to_reg) || !map_pin_to_reg[pin])
+		return NULL;
+
+	gpio = kzalloc(sizeof(struct intel_gpio), GFP_KERNEL);
+	if (gpio == NULL)
+		return NULL;
+
+	gpio->reg = map_pin_to_reg[pin];
+	gpio->dev_priv = dev_priv;
+
+	snprintf(gpio->adapter.name, sizeof(gpio->adapter.name),
+		 "gma500 GPIO%c", "?BACDE?F"[pin]);
+	gpio->adapter.owner = THIS_MODULE;
+	gpio->adapter.algo_data	= &gpio->algo;
+	gpio->adapter.dev.parent = &dev_priv->dev->pdev->dev;
+	gpio->algo.setsda = set_data;
+	gpio->algo.setscl = set_clock;
+	gpio->algo.getsda = get_data;
+	gpio->algo.getscl = get_clock;
+	gpio->algo.udelay = I2C_RISEFALL_TIME;
+	gpio->algo.timeout = usecs_to_jiffies(2200);
+	gpio->algo.data = gpio;
+
+	if (i2c_bit_add_bus(&gpio->adapter))
+		goto out_free;
+
+	return &gpio->adapter;
+
+out_free:
+	kfree(gpio);
+	return NULL;
+}
+
+static int
+intel_i2c_quirk_xfer(struct drm_psb_private *dev_priv,
+		     struct i2c_adapter *adapter,
+		     struct i2c_msg *msgs,
+		     int num)
+{
+	struct intel_gpio *gpio = container_of(adapter,
+					       struct intel_gpio,
+					       adapter);
+	int ret;
+
+	gma_intel_i2c_reset(dev_priv->dev);
+
+	intel_i2c_quirk_set(dev_priv, true);
+	set_data(gpio, 1);
+	set_clock(gpio, 1);
+	udelay(I2C_RISEFALL_TIME);
+
+	ret = adapter->algo->master_xfer(adapter, msgs, num);
+
+	set_data(gpio, 1);
+	set_clock(gpio, 1);
+	intel_i2c_quirk_set(dev_priv, false);
+
+	return ret;
+}
+
+static int
+gmbus_xfer(struct i2c_adapter *adapter,
+	   struct i2c_msg *msgs,
+	   int num)
+{
+	struct intel_gmbus *bus = container_of(adapter,
+					       struct intel_gmbus,
+					       adapter);
+	struct drm_psb_private *dev_priv = adapter->algo_data;
+	struct drm_device *dev = dev_priv->dev;
+	int i, reg_offset;
+
+	if (bus->force_bit)
+		return intel_i2c_quirk_xfer(dev_priv,
+					    bus->force_bit, msgs, num);
+
+	reg_offset = 0;
+
+	REG_WRITE(GMBUS0 + reg_offset, bus->reg0);
+
+	for (i = 0; i < num; i++) {
+		u16 len = msgs[i].len;
+		u8 *buf = msgs[i].buf;
+
+		if (msgs[i].flags & I2C_M_RD) {
+			REG_WRITE(GMBUS1 + reg_offset,
+				   GMBUS_CYCLE_WAIT | (i + 1 == num ? GMBUS_CYCLE_STOP : 0) |
+				   (len << GMBUS_BYTE_COUNT_SHIFT) |
+				   (msgs[i].addr << GMBUS_SLAVE_ADDR_SHIFT) |
+				   GMBUS_SLAVE_READ | GMBUS_SW_RDY);
+			REG_READ(GMBUS2+reg_offset);
+			do {
+				u32 val, loop = 0;
+
+				if (wait_for(REG_READ(GMBUS2 + reg_offset) & (GMBUS_SATOER | GMBUS_HW_RDY), 50))
+					goto timeout;
+				if (REG_READ(GMBUS2 + reg_offset) & GMBUS_SATOER)
+					goto clear_err;
+
+				val = REG_READ(GMBUS3 + reg_offset);
+				do {
+					*buf++ = val & 0xff;
+					val >>= 8;
+				} while (--len && ++loop < 4);
+			} while (len);
+		} else {
+			u32 val, loop;
+
+			val = loop = 0;
+			do {
+				val |= *buf++ << (8 * loop);
+			} while (--len && ++loop < 4);
+
+			REG_WRITE(GMBUS3 + reg_offset, val);
+			REG_WRITE(GMBUS1 + reg_offset,
+				   (i + 1 == num ? GMBUS_CYCLE_STOP : GMBUS_CYCLE_WAIT) |
+				   (msgs[i].len << GMBUS_BYTE_COUNT_SHIFT) |
+				   (msgs[i].addr << GMBUS_SLAVE_ADDR_SHIFT) |
+				   GMBUS_SLAVE_WRITE | GMBUS_SW_RDY);
+			REG_READ(GMBUS2+reg_offset);
+
+			while (len) {
+				if (wait_for(REG_READ(GMBUS2 + reg_offset) & (GMBUS_SATOER | GMBUS_HW_RDY), 50))
+					goto timeout;
+				if (REG_READ(GMBUS2 + reg_offset) & GMBUS_SATOER)
+					goto clear_err;
+
+				val = loop = 0;
+				do {
+					val |= *buf++ << (8 * loop);
+				} while (--len && ++loop < 4);
+
+				REG_WRITE(GMBUS3 + reg_offset, val);
+				REG_READ(GMBUS2+reg_offset);
+			}
+		}
+
+		if (i + 1 < num && wait_for(REG_READ(GMBUS2 + reg_offset) & (GMBUS_SATOER | GMBUS_HW_WAIT_PHASE), 50))
+			goto timeout;
+		if (REG_READ(GMBUS2 + reg_offset) & GMBUS_SATOER)
+			goto clear_err;
+	}
+
+	goto done;
+
+clear_err:
+	/* Toggle the Software Clear Interrupt bit. This has the effect
+	 * of resetting the GMBUS controller and so clearing the
+	 * BUS_ERROR raised by the slave's NAK.
+	 */
+	REG_WRITE(GMBUS1 + reg_offset, GMBUS_SW_CLR_INT);
+	REG_WRITE(GMBUS1 + reg_offset, 0);
+
+done:
+	/* Mark the GMBUS interface as disabled. We will re-enable it at the
+	 * start of the next xfer, till then let it sleep.
+	 */
+	REG_WRITE(GMBUS0 + reg_offset, 0);
+	return i;
+
+timeout:
+	DRM_INFO("GMBUS timed out, falling back to bit banging on pin %d [%s]\n",
+		 bus->reg0 & 0xff, bus->adapter.name);
+	REG_WRITE(GMBUS0 + reg_offset, 0);
+
+	/* Hardware may not support GMBUS over these pins? Try GPIO bitbanging instead. */
+	bus->force_bit = intel_gpio_create(dev_priv, bus->reg0 & 0xff);
+	if (!bus->force_bit)
+		return -ENOMEM;
+
+	return intel_i2c_quirk_xfer(dev_priv, bus->force_bit, msgs, num);
+}
+
+static u32 gmbus_func(struct i2c_adapter *adapter)
+{
+	struct intel_gmbus *bus = container_of(adapter,
+					       struct intel_gmbus,
+					       adapter);
+
+	if (bus->force_bit)
+		bus->force_bit->algo->functionality(bus->force_bit);
+
+	return (I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL |
+		/* I2C_FUNC_10BIT_ADDR | */
+		I2C_FUNC_SMBUS_READ_BLOCK_DATA |
+		I2C_FUNC_SMBUS_BLOCK_PROC_CALL);
+}
+
+static const struct i2c_algorithm gmbus_algorithm = {
+	.master_xfer	= gmbus_xfer,
+	.functionality	= gmbus_func
+};
+
+/**
+ * intel_gmbus_setup - instantiate all Intel i2c GMBuses
+ * @dev: DRM device
+ */
+int gma_intel_setup_gmbus(struct drm_device *dev)
+{
+	static const char *names[GMBUS_NUM_PORTS] = {
+		"disabled",
+		"ssc",
+		"vga",
+		"panel",
+		"dpc",
+		"dpb",
+		"reserved",
+		"dpd",
+	};
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	int ret, i;
+
+	dev_priv->gmbus = kcalloc(sizeof(struct intel_gmbus), GMBUS_NUM_PORTS,
+				  GFP_KERNEL);
+	if (dev_priv->gmbus == NULL)
+		return -ENOMEM;
+
+	for (i = 0; i < GMBUS_NUM_PORTS; i++) {
+		struct intel_gmbus *bus = &dev_priv->gmbus[i];
+
+		bus->adapter.owner = THIS_MODULE;
+		bus->adapter.class = I2C_CLASS_DDC;
+		snprintf(bus->adapter.name,
+			 sizeof(bus->adapter.name),
+			 "gma500 gmbus %s",
+			 names[i]);
+
+		bus->adapter.dev.parent = &dev->pdev->dev;
+		bus->adapter.algo_data	= dev_priv;
+
+		bus->adapter.algo = &gmbus_algorithm;
+		ret = i2c_add_adapter(&bus->adapter);
+		if (ret)
+			goto err;
+
+		/* By default use a conservative clock rate */
+		bus->reg0 = i | GMBUS_RATE_100KHZ;
+
+		/* XXX force bit banging until GMBUS is fully debugged */
+		bus->force_bit = intel_gpio_create(dev_priv, i);
+	}
+
+	gma_intel_i2c_reset(dev_priv->dev);
+
+	return 0;
+
+err:
+	while (--i) {
+		struct intel_gmbus *bus = &dev_priv->gmbus[i];
+		i2c_del_adapter(&bus->adapter);
+	}
+	kfree(dev_priv->gmbus);
+	dev_priv->gmbus = NULL;
+	return ret;
+}
+
+void gma_intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed)
+{
+	struct intel_gmbus *bus = to_intel_gmbus(adapter);
+
+	/* speed:
+	 * 0x0 = 100 KHz
+	 * 0x1 = 50 KHz
+	 * 0x2 = 400 KHz
+	 * 0x3 = 1000 Khz
+	 */
+	bus->reg0 = (bus->reg0 & ~(0x3 << 8)) | (speed << 8);
+}
+
+void gma_intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit)
+{
+	struct intel_gmbus *bus = to_intel_gmbus(adapter);
+
+	if (force_bit) {
+		if (bus->force_bit == NULL) {
+			struct drm_psb_private *dev_priv = adapter->algo_data;
+			bus->force_bit = intel_gpio_create(dev_priv,
+							   bus->reg0 & 0xff);
+		}
+	} else {
+		if (bus->force_bit) {
+			i2c_del_adapter(bus->force_bit);
+			kfree(bus->force_bit);
+			bus->force_bit = NULL;
+		}
+	}
+}
+
+void gma_intel_teardown_gmbus(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	int i;
+
+	if (dev_priv->gmbus == NULL)
+		return;
+
+	for (i = 0; i < GMBUS_NUM_PORTS; i++) {
+		struct intel_gmbus *bus = &dev_priv->gmbus[i];
+		if (bus->force_bit) {
+			i2c_del_adapter(bus->force_bit);
+			kfree(bus->force_bit);
+		}
+		i2c_del_adapter(&bus->adapter);
+	}
+
+	kfree(dev_priv->gmbus);
+	dev_priv->gmbus = NULL;
+}
diff --git a/drivers/gpu/drm/gma500/intel_i2c.c b/drivers/gpu/drm/gma500/intel_i2c.c
new file mode 100644
index 000000000000..98a28c209555
--- /dev/null
+++ b/drivers/gpu/drm/gma500/intel_i2c.c
@@ -0,0 +1,169 @@
+/*
+ * Copyright © 2006-2007 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Authors:
+ *	Eric Anholt <eric@anholt.net>
+ */
+#include <linux/export.h>
+#include <linux/i2c.h>
+#include <linux/i2c-algo-bit.h>
+
+#include "psb_drv.h"
+#include "psb_intel_reg.h"
+
+/*
+ * Intel GPIO access functions
+ */
+
+#define I2C_RISEFALL_TIME 20
+
+static int get_clock(void *data)
+{
+	struct psb_intel_i2c_chan *chan = data;
+	struct drm_device *dev = chan->drm_dev;
+	u32 val;
+
+	val = REG_READ(chan->reg);
+	return (val & GPIO_CLOCK_VAL_IN) != 0;
+}
+
+static int get_data(void *data)
+{
+	struct psb_intel_i2c_chan *chan = data;
+	struct drm_device *dev = chan->drm_dev;
+	u32 val;
+
+	val = REG_READ(chan->reg);
+	return (val & GPIO_DATA_VAL_IN) != 0;
+}
+
+static void set_clock(void *data, int state_high)
+{
+	struct psb_intel_i2c_chan *chan = data;
+	struct drm_device *dev = chan->drm_dev;
+	u32 reserved = 0, clock_bits;
+
+	/* On most chips, these bits must be preserved in software. */
+	reserved =
+		    REG_READ(chan->reg) & (GPIO_DATA_PULLUP_DISABLE |
+					   GPIO_CLOCK_PULLUP_DISABLE);
+
+	if (state_high)
+		clock_bits = GPIO_CLOCK_DIR_IN | GPIO_CLOCK_DIR_MASK;
+	else
+		clock_bits = GPIO_CLOCK_DIR_OUT | GPIO_CLOCK_DIR_MASK |
+		    GPIO_CLOCK_VAL_MASK;
+	REG_WRITE(chan->reg, reserved | clock_bits);
+	udelay(I2C_RISEFALL_TIME);	/* wait for the line to change state */
+}
+
+static void set_data(void *data, int state_high)
+{
+	struct psb_intel_i2c_chan *chan = data;
+	struct drm_device *dev = chan->drm_dev;
+	u32 reserved = 0, data_bits;
+
+	/* On most chips, these bits must be preserved in software. */
+	reserved =
+		    REG_READ(chan->reg) & (GPIO_DATA_PULLUP_DISABLE |
+					   GPIO_CLOCK_PULLUP_DISABLE);
+
+	if (state_high)
+		data_bits = GPIO_DATA_DIR_IN | GPIO_DATA_DIR_MASK;
+	else
+		data_bits =
+		    GPIO_DATA_DIR_OUT | GPIO_DATA_DIR_MASK |
+		    GPIO_DATA_VAL_MASK;
+
+	REG_WRITE(chan->reg, reserved | data_bits);
+	udelay(I2C_RISEFALL_TIME);	/* wait for the line to change state */
+}
+
+/**
+ * psb_intel_i2c_create - instantiate an Intel i2c bus using the specified GPIO reg
+ * @dev: DRM device
+ * @output: driver specific output device
+ * @reg: GPIO reg to use
+ * @name: name for this bus
+ *
+ * Creates and registers a new i2c bus with the Linux i2c layer, for use
+ * in output probing and control (e.g. DDC or SDVO control functions).
+ *
+ * Possible values for @reg include:
+ *   %GPIOA
+ *   %GPIOB
+ *   %GPIOC
+ *   %GPIOD
+ *   %GPIOE
+ *   %GPIOF
+ *   %GPIOG
+ *   %GPIOH
+ * see PRM for details on how these different busses are used.
+ */
+struct psb_intel_i2c_chan *psb_intel_i2c_create(struct drm_device *dev,
+					const u32 reg, const char *name)
+{
+	struct psb_intel_i2c_chan *chan;
+
+	chan = kzalloc(sizeof(struct psb_intel_i2c_chan), GFP_KERNEL);
+	if (!chan)
+		goto out_free;
+
+	chan->drm_dev = dev;
+	chan->reg = reg;
+	snprintf(chan->adapter.name, I2C_NAME_SIZE, "intel drm %s", name);
+	chan->adapter.owner = THIS_MODULE;
+	chan->adapter.algo_data = &chan->algo;
+	chan->adapter.dev.parent = &dev->pdev->dev;
+	chan->algo.setsda = set_data;
+	chan->algo.setscl = set_clock;
+	chan->algo.getsda = get_data;
+	chan->algo.getscl = get_clock;
+	chan->algo.udelay = 20;
+	chan->algo.timeout = usecs_to_jiffies(2200);
+	chan->algo.data = chan;
+
+	i2c_set_adapdata(&chan->adapter, chan);
+
+	if (i2c_bit_add_bus(&chan->adapter))
+		goto out_free;
+
+	/* JJJ:  raise SCL and SDA? */
+	set_data(chan, 1);
+	set_clock(chan, 1);
+	udelay(20);
+
+	return chan;
+
+out_free:
+	kfree(chan);
+	return NULL;
+}
+
+/**
+ * psb_intel_i2c_destroy - unregister and free i2c bus resources
+ * @output: channel to free
+ *
+ * Unregister the adapter from the i2c layer, then free the structure.
+ */
+void psb_intel_i2c_destroy(struct psb_intel_i2c_chan *chan)
+{
+	if (!chan)
+		return;
+
+	i2c_del_adapter(&chan->adapter);
+	kfree(chan);
+}
diff --git a/drivers/gpu/drm/gma500/intel_opregion.c b/drivers/gpu/drm/gma500/intel_opregion.c
new file mode 100644
index 000000000000..d946bc1b17bf
--- /dev/null
+++ b/drivers/gpu/drm/gma500/intel_opregion.c
@@ -0,0 +1,81 @@
+/*
+ * Copyright 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * FIXME: resolve with the i915 version
+ */
+
+#include "psb_drv.h"
+
+struct opregion_header {
+	u8 signature[16];
+	u32 size;
+	u32 opregion_ver;
+	u8 bios_ver[32];
+	u8 vbios_ver[16];
+	u8 driver_ver[16];
+	u32 mboxes;
+	u8 reserved[164];
+} __packed;
+
+struct opregion_apci {
+	/*FIXME: add it later*/
+} __packed;
+
+struct opregion_swsci {
+	/*FIXME: add it later*/
+} __packed;
+
+struct opregion_acpi {
+	/*FIXME: add it later*/
+} __packed;
+
+int gma_intel_opregion_init(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	u32 opregion_phy;
+	void *base;
+	u32 *lid_state;
+
+	dev_priv->lid_state = NULL;
+
+	pci_read_config_dword(dev->pdev, 0xfc, &opregion_phy);
+	if (opregion_phy == 0)
+		return -ENOTSUPP;
+
+	base = ioremap(opregion_phy, 8*1024);
+	if (!base)
+		return -ENOMEM;
+
+	lid_state = base + 0x01ac;
+
+	dev_priv->lid_state = lid_state;
+	dev_priv->lid_last_state = readl(lid_state);
+	return 0;
+}
+
+int gma_intel_opregion_exit(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	if (dev_priv->lid_state)
+		iounmap(dev_priv->lid_state);
+	return 0;
+}
diff --git a/drivers/gpu/drm/gma500/mid_bios.c b/drivers/gpu/drm/gma500/mid_bios.c
new file mode 100644
index 000000000000..5eee9ad80da4
--- /dev/null
+++ b/drivers/gpu/drm/gma500/mid_bios.c
@@ -0,0 +1,263 @@
+/**************************************************************************
+ * Copyright (c) 2011, Intel Corporation.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ **************************************************************************/
+
+/* TODO
+ * - Split functions by vbt type
+ * - Make them all take drm_device
+ * - Check ioremap failures
+ */
+
+#include <drm/drmP.h>
+#include <drm/drm.h>
+#include "gma_drm.h"
+#include "psb_drv.h"
+#include "mid_bios.h"
+
+static void mid_get_fuse_settings(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct pci_dev *pci_root = pci_get_bus_and_slot(0, 0);
+	uint32_t fuse_value = 0;
+	uint32_t fuse_value_tmp = 0;
+
+#define FB_REG06 0xD0810600
+#define FB_MIPI_DISABLE  (1 << 11)
+#define FB_REG09 0xD0810900
+#define FB_REG09 0xD0810900
+#define FB_SKU_MASK  0x7000
+#define FB_SKU_SHIFT 12
+#define FB_SKU_100 0
+#define FB_SKU_100L 1
+#define FB_SKU_83 2
+	if (pci_root == NULL) {
+		WARN_ON(1);
+		return;
+	}
+
+
+	pci_write_config_dword(pci_root, 0xD0, FB_REG06);
+	pci_read_config_dword(pci_root, 0xD4, &fuse_value);
+
+	/* FB_MIPI_DISABLE doesn't mean LVDS on with Medfield */
+	if (IS_MRST(dev))
+		dev_priv->iLVDS_enable = fuse_value & FB_MIPI_DISABLE;
+
+	DRM_INFO("internal display is %s\n",
+		 dev_priv->iLVDS_enable ? "LVDS display" : "MIPI display");
+
+	 /* Prevent runtime suspend at start*/
+	 if (dev_priv->iLVDS_enable) {
+		dev_priv->is_lvds_on = true;
+		dev_priv->is_mipi_on = false;
+	} else {
+		dev_priv->is_mipi_on = true;
+		dev_priv->is_lvds_on = false;
+	}
+
+	dev_priv->video_device_fuse = fuse_value;
+
+	pci_write_config_dword(pci_root, 0xD0, FB_REG09);
+	pci_read_config_dword(pci_root, 0xD4, &fuse_value);
+
+	dev_dbg(dev->dev, "SKU values is 0x%x.\n", fuse_value);
+	fuse_value_tmp = (fuse_value & FB_SKU_MASK) >> FB_SKU_SHIFT;
+
+	dev_priv->fuse_reg_value = fuse_value;
+
+	switch (fuse_value_tmp) {
+	case FB_SKU_100:
+		dev_priv->core_freq = 200;
+		break;
+	case FB_SKU_100L:
+		dev_priv->core_freq = 100;
+		break;
+	case FB_SKU_83:
+		dev_priv->core_freq = 166;
+		break;
+	default:
+		dev_warn(dev->dev, "Invalid SKU values, SKU value = 0x%08x\n",
+								fuse_value_tmp);
+		dev_priv->core_freq = 0;
+	}
+	dev_dbg(dev->dev, "LNC core clk is %dMHz.\n", dev_priv->core_freq);
+	pci_dev_put(pci_root);
+}
+
+/*
+ *	Get the revison ID, B0:D2:F0;0x08
+ */
+static void mid_get_pci_revID(struct drm_psb_private *dev_priv)
+{
+	uint32_t platform_rev_id = 0;
+	struct pci_dev *pci_gfx_root = pci_get_bus_and_slot(0, PCI_DEVFN(2, 0));
+
+	if (pci_gfx_root == NULL) {
+		WARN_ON(1);
+		return;
+	}
+	pci_read_config_dword(pci_gfx_root, 0x08, &platform_rev_id);
+	dev_priv->platform_rev_id = (uint8_t) platform_rev_id;
+	pci_dev_put(pci_gfx_root);
+	dev_dbg(dev_priv->dev->dev, "platform_rev_id is %x\n",
+					dev_priv->platform_rev_id);
+}
+
+static void mid_get_vbt_data(struct drm_psb_private *dev_priv)
+{
+	struct drm_device *dev = dev_priv->dev;
+	struct oaktrail_vbt *vbt = &dev_priv->vbt_data;
+	u32 addr;
+	u16 new_size;
+	u8 *vbt_virtual;
+	u8 bpi;
+	u8 number_desc = 0;
+	struct oaktrail_timing_info *dp_ti = &dev_priv->gct_data.DTD;
+	struct gct_r10_timing_info ti;
+	void *pGCT;
+	struct pci_dev *pci_gfx_root = pci_get_bus_and_slot(0, PCI_DEVFN(2, 0));
+
+	/* Get the address of the platform config vbt, B0:D2:F0;0xFC */
+	pci_read_config_dword(pci_gfx_root, 0xFC, &addr);
+	pci_dev_put(pci_gfx_root);
+
+	dev_dbg(dev->dev, "drm platform config address is %x\n", addr);
+
+	/* check for platform config address == 0. */
+	/* this means fw doesn't support vbt */
+
+	if (addr == 0) {
+		vbt->size = 0;
+		return;
+	}
+
+	/* get the virtual address of the vbt */
+	vbt_virtual = ioremap(addr, sizeof(*vbt));
+	if (vbt_virtual == NULL) {
+		vbt->size = 0;
+		return;
+	}
+
+	memcpy(vbt, vbt_virtual, sizeof(*vbt));
+	iounmap(vbt_virtual); /* Free virtual address space */
+
+	/* No matching signature don't process the data */
+	if (memcmp(vbt->signature, "$GCT", 4)) {
+		vbt->size = 0;
+		return;
+	}
+
+	dev_dbg(dev->dev, "GCT revision is %x\n", vbt->revision);
+
+	switch (vbt->revision) {
+	case 0:
+		vbt->oaktrail_gct = ioremap(addr + sizeof(*vbt) - 4,
+					vbt->size - sizeof(*vbt) + 4);
+		pGCT = vbt->oaktrail_gct;
+		bpi = ((struct oaktrail_gct_v1 *)pGCT)->PD.BootPanelIndex;
+		dev_priv->gct_data.bpi = bpi;
+		dev_priv->gct_data.pt =
+			((struct oaktrail_gct_v1 *)pGCT)->PD.PanelType;
+		memcpy(&dev_priv->gct_data.DTD,
+			&((struct oaktrail_gct_v1 *)pGCT)->panel[bpi].DTD,
+				sizeof(struct oaktrail_timing_info));
+		dev_priv->gct_data.Panel_Port_Control =
+		  ((struct oaktrail_gct_v1 *)pGCT)->panel[bpi].Panel_Port_Control;
+		dev_priv->gct_data.Panel_MIPI_Display_Descriptor =
+			((struct oaktrail_gct_v1 *)pGCT)->panel[bpi].Panel_MIPI_Display_Descriptor;
+		break;
+	case 1:
+		vbt->oaktrail_gct = ioremap(addr + sizeof(*vbt) - 4,
+					vbt->size - sizeof(*vbt) + 4);
+		pGCT = vbt->oaktrail_gct;
+		bpi = ((struct oaktrail_gct_v2 *)pGCT)->PD.BootPanelIndex;
+		dev_priv->gct_data.bpi = bpi;
+		dev_priv->gct_data.pt =
+			((struct oaktrail_gct_v2 *)pGCT)->PD.PanelType;
+		memcpy(&dev_priv->gct_data.DTD,
+			&((struct oaktrail_gct_v2 *)pGCT)->panel[bpi].DTD,
+				sizeof(struct oaktrail_timing_info));
+		dev_priv->gct_data.Panel_Port_Control =
+		  ((struct oaktrail_gct_v2 *)pGCT)->panel[bpi].Panel_Port_Control;
+		dev_priv->gct_data.Panel_MIPI_Display_Descriptor =
+			((struct oaktrail_gct_v2 *)pGCT)->panel[bpi].Panel_MIPI_Display_Descriptor;
+		break;
+	case 0x10:
+		/*header definition changed from rev 01 (v2) to rev 10h. */
+		/*so, some values have changed location*/
+		new_size = vbt->checksum; /*checksum contains lo size byte*/
+		/*LSB of oaktrail_gct contains hi size byte*/
+		new_size |= ((0xff & (unsigned int)(long)vbt->oaktrail_gct)) << 8;
+
+		vbt->checksum = vbt->size; /*size contains the checksum*/
+		if (new_size > 0xff)
+			vbt->size = 0xff; /*restrict size to 255*/
+		else
+			vbt->size = new_size;
+
+		/* number of descriptors defined in the GCT */
+		number_desc = ((0xff00 & (unsigned int)(long)vbt->oaktrail_gct)) >> 8;
+		bpi = ((0xff0000 & (unsigned int)(long)vbt->oaktrail_gct)) >> 16;
+		vbt->oaktrail_gct = ioremap(addr + GCT_R10_HEADER_SIZE,
+				GCT_R10_DISPLAY_DESC_SIZE * number_desc);
+		pGCT = vbt->oaktrail_gct;
+		pGCT = (u8 *)pGCT + (bpi*GCT_R10_DISPLAY_DESC_SIZE);
+		dev_priv->gct_data.bpi = bpi; /*save boot panel id*/
+
+		/*copy the GCT display timings into a temp structure*/
+		memcpy(&ti, pGCT, sizeof(struct gct_r10_timing_info));
+
+		/*now copy the temp struct into the dev_priv->gct_data*/
+		dp_ti->pixel_clock = ti.pixel_clock;
+		dp_ti->hactive_hi = ti.hactive_hi;
+		dp_ti->hactive_lo = ti.hactive_lo;
+		dp_ti->hblank_hi = ti.hblank_hi;
+		dp_ti->hblank_lo = ti.hblank_lo;
+		dp_ti->hsync_offset_hi = ti.hsync_offset_hi;
+		dp_ti->hsync_offset_lo = ti.hsync_offset_lo;
+		dp_ti->hsync_pulse_width_hi = ti.hsync_pulse_width_hi;
+		dp_ti->hsync_pulse_width_lo = ti.hsync_pulse_width_lo;
+		dp_ti->vactive_hi = ti.vactive_hi;
+		dp_ti->vactive_lo = ti.vactive_lo;
+		dp_ti->vblank_hi = ti.vblank_hi;
+		dp_ti->vblank_lo = ti.vblank_lo;
+		dp_ti->vsync_offset_hi = ti.vsync_offset_hi;
+		dp_ti->vsync_offset_lo = ti.vsync_offset_lo;
+		dp_ti->vsync_pulse_width_hi = ti.vsync_pulse_width_hi;
+		dp_ti->vsync_pulse_width_lo = ti.vsync_pulse_width_lo;
+
+		/* Move the MIPI_Display_Descriptor data from GCT to dev priv */
+		dev_priv->gct_data.Panel_MIPI_Display_Descriptor =
+							*((u8 *)pGCT + 0x0d);
+		dev_priv->gct_data.Panel_MIPI_Display_Descriptor |=
+						(*((u8 *)pGCT + 0x0e)) << 8;
+		break;
+	default:
+		dev_err(dev->dev, "Unknown revision of GCT!\n");
+		vbt->size = 0;
+	}
+}
+
+int mid_chip_setup(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	mid_get_fuse_settings(dev);
+	mid_get_vbt_data(dev_priv);
+	mid_get_pci_revID(dev_priv);
+	return 0;
+}
diff --git a/drivers/gpu/drm/gma500/mid_bios.h b/drivers/gpu/drm/gma500/mid_bios.h
new file mode 100644
index 000000000000..00e7d564b7eb
--- /dev/null
+++ b/drivers/gpu/drm/gma500/mid_bios.h
@@ -0,0 +1,21 @@
+/**************************************************************************
+ * Copyright (c) 2011, Intel Corporation.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ **************************************************************************/
+
+extern int mid_chip_setup(struct drm_device *dev);
+
diff --git a/drivers/gpu/drm/gma500/mmu.c b/drivers/gpu/drm/gma500/mmu.c
new file mode 100644
index 000000000000..c904d73b1de3
--- /dev/null
+++ b/drivers/gpu/drm/gma500/mmu.c
@@ -0,0 +1,858 @@
+/**************************************************************************
+ * Copyright (c) 2007, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ **************************************************************************/
+#include <drm/drmP.h>
+#include "psb_drv.h"
+#include "psb_reg.h"
+
+/*
+ * Code for the SGX MMU:
+ */
+
+/*
+ * clflush on one processor only:
+ * clflush should apparently flush the cache line on all processors in an
+ * SMP system.
+ */
+
+/*
+ * kmap atomic:
+ * The usage of the slots must be completely encapsulated within a spinlock, and
+ * no other functions that may be using the locks for other purposed may be
+ * called from within the locked region.
+ * Since the slots are per processor, this will guarantee that we are the only
+ * user.
+ */
+
+/*
+ * TODO: Inserting ptes from an interrupt handler:
+ * This may be desirable for some SGX functionality where the GPU can fault in
+ * needed pages. For that, we need to make an atomic insert_pages function, that
+ * may fail.
+ * If it fails, the caller need to insert the page using a workqueue function,
+ * but on average it should be fast.
+ */
+
+struct psb_mmu_driver {
+	/* protects driver- and pd structures. Always take in read mode
+	 * before taking the page table spinlock.
+	 */
+	struct rw_semaphore sem;
+
+	/* protects page tables, directory tables and pt tables.
+	 * and pt structures.
+	 */
+	spinlock_t lock;
+
+	atomic_t needs_tlbflush;
+
+	uint8_t __iomem *register_map;
+	struct psb_mmu_pd *default_pd;
+	/*uint32_t bif_ctrl;*/
+	int has_clflush;
+	int clflush_add;
+	unsigned long clflush_mask;
+
+	struct drm_psb_private *dev_priv;
+};
+
+struct psb_mmu_pd;
+
+struct psb_mmu_pt {
+	struct psb_mmu_pd *pd;
+	uint32_t index;
+	uint32_t count;
+	struct page *p;
+	uint32_t *v;
+};
+
+struct psb_mmu_pd {
+	struct psb_mmu_driver *driver;
+	int hw_context;
+	struct psb_mmu_pt **tables;
+	struct page *p;
+	struct page *dummy_pt;
+	struct page *dummy_page;
+	uint32_t pd_mask;
+	uint32_t invalid_pde;
+	uint32_t invalid_pte;
+};
+
+static inline uint32_t psb_mmu_pt_index(uint32_t offset)
+{
+	return (offset >> PSB_PTE_SHIFT) & 0x3FF;
+}
+
+static inline uint32_t psb_mmu_pd_index(uint32_t offset)
+{
+	return offset >> PSB_PDE_SHIFT;
+}
+
+static inline void psb_clflush(void *addr)
+{
+	__asm__ __volatile__("clflush (%0)\n" : : "r"(addr) : "memory");
+}
+
+static inline void psb_mmu_clflush(struct psb_mmu_driver *driver,
+				   void *addr)
+{
+	if (!driver->has_clflush)
+		return;
+
+	mb();
+	psb_clflush(addr);
+	mb();
+}
+
+static void psb_page_clflush(struct psb_mmu_driver *driver, struct page* page)
+{
+	uint32_t clflush_add = driver->clflush_add >> PAGE_SHIFT;
+	uint32_t clflush_count = PAGE_SIZE / clflush_add;
+	int i;
+	uint8_t *clf;
+
+	clf = kmap_atomic(page, KM_USER0);
+	mb();
+	for (i = 0; i < clflush_count; ++i) {
+		psb_clflush(clf);
+		clf += clflush_add;
+	}
+	mb();
+	kunmap_atomic(clf, KM_USER0);
+}
+
+static void psb_pages_clflush(struct psb_mmu_driver *driver,
+				struct page *page[], unsigned long num_pages)
+{
+	int i;
+
+	if (!driver->has_clflush)
+		return ;
+
+	for (i = 0; i < num_pages; i++)
+		psb_page_clflush(driver, *page++);
+}
+
+static void psb_mmu_flush_pd_locked(struct psb_mmu_driver *driver,
+				    int force)
+{
+	atomic_set(&driver->needs_tlbflush, 0);
+}
+
+static void psb_mmu_flush_pd(struct psb_mmu_driver *driver, int force)
+{
+	down_write(&driver->sem);
+	psb_mmu_flush_pd_locked(driver, force);
+	up_write(&driver->sem);
+}
+
+void psb_mmu_flush(struct psb_mmu_driver *driver, int rc_prot)
+{
+	if (rc_prot)
+		down_write(&driver->sem);
+	if (rc_prot)
+		up_write(&driver->sem);
+}
+
+void psb_mmu_set_pd_context(struct psb_mmu_pd *pd, int hw_context)
+{
+	/*ttm_tt_cache_flush(&pd->p, 1);*/
+	psb_pages_clflush(pd->driver, &pd->p, 1);
+	down_write(&pd->driver->sem);
+	wmb();
+	psb_mmu_flush_pd_locked(pd->driver, 1);
+	pd->hw_context = hw_context;
+	up_write(&pd->driver->sem);
+
+}
+
+static inline unsigned long psb_pd_addr_end(unsigned long addr,
+					    unsigned long end)
+{
+
+	addr = (addr + PSB_PDE_MASK + 1) & ~PSB_PDE_MASK;
+	return (addr < end) ? addr : end;
+}
+
+static inline uint32_t psb_mmu_mask_pte(uint32_t pfn, int type)
+{
+	uint32_t mask = PSB_PTE_VALID;
+
+	if (type & PSB_MMU_CACHED_MEMORY)
+		mask |= PSB_PTE_CACHED;
+	if (type & PSB_MMU_RO_MEMORY)
+		mask |= PSB_PTE_RO;
+	if (type & PSB_MMU_WO_MEMORY)
+		mask |= PSB_PTE_WO;
+
+	return (pfn << PAGE_SHIFT) | mask;
+}
+
+struct psb_mmu_pd *psb_mmu_alloc_pd(struct psb_mmu_driver *driver,
+				    int trap_pagefaults, int invalid_type)
+{
+	struct psb_mmu_pd *pd = kmalloc(sizeof(*pd), GFP_KERNEL);
+	uint32_t *v;
+	int i;
+
+	if (!pd)
+		return NULL;
+
+	pd->p = alloc_page(GFP_DMA32);
+	if (!pd->p)
+		goto out_err1;
+	pd->dummy_pt = alloc_page(GFP_DMA32);
+	if (!pd->dummy_pt)
+		goto out_err2;
+	pd->dummy_page = alloc_page(GFP_DMA32);
+	if (!pd->dummy_page)
+		goto out_err3;
+
+	if (!trap_pagefaults) {
+		pd->invalid_pde =
+		    psb_mmu_mask_pte(page_to_pfn(pd->dummy_pt),
+				     invalid_type);
+		pd->invalid_pte =
+		    psb_mmu_mask_pte(page_to_pfn(pd->dummy_page),
+				     invalid_type);
+	} else {
+		pd->invalid_pde = 0;
+		pd->invalid_pte = 0;
+	}
+
+	v = kmap(pd->dummy_pt);
+	for (i = 0; i < (PAGE_SIZE / sizeof(uint32_t)); ++i)
+		v[i] = pd->invalid_pte;
+
+	kunmap(pd->dummy_pt);
+
+	v = kmap(pd->p);
+	for (i = 0; i < (PAGE_SIZE / sizeof(uint32_t)); ++i)
+		v[i] = pd->invalid_pde;
+
+	kunmap(pd->p);
+
+	clear_page(kmap(pd->dummy_page));
+	kunmap(pd->dummy_page);
+
+	pd->tables = vmalloc_user(sizeof(struct psb_mmu_pt *) * 1024);
+	if (!pd->tables)
+		goto out_err4;
+
+	pd->hw_context = -1;
+	pd->pd_mask = PSB_PTE_VALID;
+	pd->driver = driver;
+
+	return pd;
+
+out_err4:
+	__free_page(pd->dummy_page);
+out_err3:
+	__free_page(pd->dummy_pt);
+out_err2:
+	__free_page(pd->p);
+out_err1:
+	kfree(pd);
+	return NULL;
+}
+
+void psb_mmu_free_pt(struct psb_mmu_pt *pt)
+{
+	__free_page(pt->p);
+	kfree(pt);
+}
+
+void psb_mmu_free_pagedir(struct psb_mmu_pd *pd)
+{
+	struct psb_mmu_driver *driver = pd->driver;
+	struct psb_mmu_pt *pt;
+	int i;
+
+	down_write(&driver->sem);
+	if (pd->hw_context != -1)
+		psb_mmu_flush_pd_locked(driver, 1);
+
+	/* Should take the spinlock here, but we don't need to do that
+	   since we have the semaphore in write mode. */
+
+	for (i = 0; i < 1024; ++i) {
+		pt = pd->tables[i];
+		if (pt)
+			psb_mmu_free_pt(pt);
+	}
+
+	vfree(pd->tables);
+	__free_page(pd->dummy_page);
+	__free_page(pd->dummy_pt);
+	__free_page(pd->p);
+	kfree(pd);
+	up_write(&driver->sem);
+}
+
+static struct psb_mmu_pt *psb_mmu_alloc_pt(struct psb_mmu_pd *pd)
+{
+	struct psb_mmu_pt *pt = kmalloc(sizeof(*pt), GFP_KERNEL);
+	void *v;
+	uint32_t clflush_add = pd->driver->clflush_add >> PAGE_SHIFT;
+	uint32_t clflush_count = PAGE_SIZE / clflush_add;
+	spinlock_t *lock = &pd->driver->lock;
+	uint8_t *clf;
+	uint32_t *ptes;
+	int i;
+
+	if (!pt)
+		return NULL;
+
+	pt->p = alloc_page(GFP_DMA32);
+	if (!pt->p) {
+		kfree(pt);
+		return NULL;
+	}
+
+	spin_lock(lock);
+
+	v = kmap_atomic(pt->p, KM_USER0);
+	clf = (uint8_t *) v;
+	ptes = (uint32_t *) v;
+	for (i = 0; i < (PAGE_SIZE / sizeof(uint32_t)); ++i)
+		*ptes++ = pd->invalid_pte;
+
+
+	if (pd->driver->has_clflush && pd->hw_context != -1) {
+		mb();
+		for (i = 0; i < clflush_count; ++i) {
+			psb_clflush(clf);
+			clf += clflush_add;
+		}
+		mb();
+	}
+
+	kunmap_atomic(v, KM_USER0);
+	spin_unlock(lock);
+
+	pt->count = 0;
+	pt->pd = pd;
+	pt->index = 0;
+
+	return pt;
+}
+
+struct psb_mmu_pt *psb_mmu_pt_alloc_map_lock(struct psb_mmu_pd *pd,
+					     unsigned long addr)
+{
+	uint32_t index = psb_mmu_pd_index(addr);
+	struct psb_mmu_pt *pt;
+	uint32_t *v;
+	spinlock_t *lock = &pd->driver->lock;
+
+	spin_lock(lock);
+	pt = pd->tables[index];
+	while (!pt) {
+		spin_unlock(lock);
+		pt = psb_mmu_alloc_pt(pd);
+		if (!pt)
+			return NULL;
+		spin_lock(lock);
+
+		if (pd->tables[index]) {
+			spin_unlock(lock);
+			psb_mmu_free_pt(pt);
+			spin_lock(lock);
+			pt = pd->tables[index];
+			continue;
+		}
+
+		v = kmap_atomic(pd->p, KM_USER0);
+		pd->tables[index] = pt;
+		v[index] = (page_to_pfn(pt->p) << 12) | pd->pd_mask;
+		pt->index = index;
+		kunmap_atomic((void *) v, KM_USER0);
+
+		if (pd->hw_context != -1) {
+			psb_mmu_clflush(pd->driver, (void *) &v[index]);
+			atomic_set(&pd->driver->needs_tlbflush, 1);
+		}
+	}
+	pt->v = kmap_atomic(pt->p, KM_USER0);
+	return pt;
+}
+
+static struct psb_mmu_pt *psb_mmu_pt_map_lock(struct psb_mmu_pd *pd,
+					      unsigned long addr)
+{
+	uint32_t index = psb_mmu_pd_index(addr);
+	struct psb_mmu_pt *pt;
+	spinlock_t *lock = &pd->driver->lock;
+
+	spin_lock(lock);
+	pt = pd->tables[index];
+	if (!pt) {
+		spin_unlock(lock);
+		return NULL;
+	}
+	pt->v = kmap_atomic(pt->p, KM_USER0);
+	return pt;
+}
+
+static void psb_mmu_pt_unmap_unlock(struct psb_mmu_pt *pt)
+{
+	struct psb_mmu_pd *pd = pt->pd;
+	uint32_t *v;
+
+	kunmap_atomic(pt->v, KM_USER0);
+	if (pt->count == 0) {
+		v = kmap_atomic(pd->p, KM_USER0);
+		v[pt->index] = pd->invalid_pde;
+		pd->tables[pt->index] = NULL;
+
+		if (pd->hw_context != -1) {
+			psb_mmu_clflush(pd->driver,
+					(void *) &v[pt->index]);
+			atomic_set(&pd->driver->needs_tlbflush, 1);
+		}
+		kunmap_atomic(pt->v, KM_USER0);
+		spin_unlock(&pd->driver->lock);
+		psb_mmu_free_pt(pt);
+		return;
+	}
+	spin_unlock(&pd->driver->lock);
+}
+
+static inline void psb_mmu_set_pte(struct psb_mmu_pt *pt,
+				   unsigned long addr, uint32_t pte)
+{
+	pt->v[psb_mmu_pt_index(addr)] = pte;
+}
+
+static inline void psb_mmu_invalidate_pte(struct psb_mmu_pt *pt,
+					  unsigned long addr)
+{
+	pt->v[psb_mmu_pt_index(addr)] = pt->pd->invalid_pte;
+}
+
+
+void psb_mmu_mirror_gtt(struct psb_mmu_pd *pd,
+			uint32_t mmu_offset, uint32_t gtt_start,
+			uint32_t gtt_pages)
+{
+	uint32_t *v;
+	uint32_t start = psb_mmu_pd_index(mmu_offset);
+	struct psb_mmu_driver *driver = pd->driver;
+	int num_pages = gtt_pages;
+
+	down_read(&driver->sem);
+	spin_lock(&driver->lock);
+
+	v = kmap_atomic(pd->p, KM_USER0);
+	v += start;
+
+	while (gtt_pages--) {
+		*v++ = gtt_start | pd->pd_mask;
+		gtt_start += PAGE_SIZE;
+	}
+
+	/*ttm_tt_cache_flush(&pd->p, num_pages);*/
+	psb_pages_clflush(pd->driver, &pd->p, num_pages);
+	kunmap_atomic(v, KM_USER0);
+	spin_unlock(&driver->lock);
+
+	if (pd->hw_context != -1)
+		atomic_set(&pd->driver->needs_tlbflush, 1);
+
+	up_read(&pd->driver->sem);
+	psb_mmu_flush_pd(pd->driver, 0);
+}
+
+struct psb_mmu_pd *psb_mmu_get_default_pd(struct psb_mmu_driver *driver)
+{
+	struct psb_mmu_pd *pd;
+
+	/* down_read(&driver->sem); */
+	pd = driver->default_pd;
+	/* up_read(&driver->sem); */
+
+	return pd;
+}
+
+/* Returns the physical address of the PD shared by sgx/msvdx */
+uint32_t psb_get_default_pd_addr(struct psb_mmu_driver *driver)
+{
+	struct psb_mmu_pd *pd;
+
+	pd = psb_mmu_get_default_pd(driver);
+	return page_to_pfn(pd->p) << PAGE_SHIFT;
+}
+
+void psb_mmu_driver_takedown(struct psb_mmu_driver *driver)
+{
+	psb_mmu_free_pagedir(driver->default_pd);
+	kfree(driver);
+}
+
+struct psb_mmu_driver *psb_mmu_driver_init(uint8_t __iomem * registers,
+					int trap_pagefaults,
+					int invalid_type,
+					struct drm_psb_private *dev_priv)
+{
+	struct psb_mmu_driver *driver;
+
+	driver = kmalloc(sizeof(*driver), GFP_KERNEL);
+
+	if (!driver)
+		return NULL;
+	driver->dev_priv = dev_priv;
+
+	driver->default_pd = psb_mmu_alloc_pd(driver, trap_pagefaults,
+					      invalid_type);
+	if (!driver->default_pd)
+		goto out_err1;
+
+	spin_lock_init(&driver->lock);
+	init_rwsem(&driver->sem);
+	down_write(&driver->sem);
+	driver->register_map = registers;
+	atomic_set(&driver->needs_tlbflush, 1);
+
+	driver->has_clflush = 0;
+
+	if (boot_cpu_has(X86_FEATURE_CLFLSH)) {
+		uint32_t tfms, misc, cap0, cap4, clflush_size;
+
+		/*
+		 * clflush size is determined at kernel setup for x86_64
+		 *  but not for i386. We have to do it here.
+		 */
+
+		cpuid(0x00000001, &tfms, &misc, &cap0, &cap4);
+		clflush_size = ((misc >> 8) & 0xff) * 8;
+		driver->has_clflush = 1;
+		driver->clflush_add =
+		    PAGE_SIZE * clflush_size / sizeof(uint32_t);
+		driver->clflush_mask = driver->clflush_add - 1;
+		driver->clflush_mask = ~driver->clflush_mask;
+	}
+
+	up_write(&driver->sem);
+	return driver;
+
+out_err1:
+	kfree(driver);
+	return NULL;
+}
+
+static void psb_mmu_flush_ptes(struct psb_mmu_pd *pd,
+			       unsigned long address, uint32_t num_pages,
+			       uint32_t desired_tile_stride,
+			       uint32_t hw_tile_stride)
+{
+	struct psb_mmu_pt *pt;
+	uint32_t rows = 1;
+	uint32_t i;
+	unsigned long addr;
+	unsigned long end;
+	unsigned long next;
+	unsigned long add;
+	unsigned long row_add;
+	unsigned long clflush_add = pd->driver->clflush_add;
+	unsigned long clflush_mask = pd->driver->clflush_mask;
+
+	if (!pd->driver->has_clflush) {
+		/*ttm_tt_cache_flush(&pd->p, num_pages);*/
+		psb_pages_clflush(pd->driver, &pd->p, num_pages);
+		return;
+	}
+
+	if (hw_tile_stride)
+		rows = num_pages / desired_tile_stride;
+	else
+		desired_tile_stride = num_pages;
+
+	add = desired_tile_stride << PAGE_SHIFT;
+	row_add = hw_tile_stride << PAGE_SHIFT;
+	mb();
+	for (i = 0; i < rows; ++i) {
+
+		addr = address;
+		end = addr + add;
+
+		do {
+			next = psb_pd_addr_end(addr, end);
+			pt = psb_mmu_pt_map_lock(pd, addr);
+			if (!pt)
+				continue;
+			do {
+				psb_clflush(&pt->v
+					    [psb_mmu_pt_index(addr)]);
+			} while (addr +=
+				 clflush_add,
+				 (addr & clflush_mask) < next);
+
+			psb_mmu_pt_unmap_unlock(pt);
+		} while (addr = next, next != end);
+		address += row_add;
+	}
+	mb();
+}
+
+void psb_mmu_remove_pfn_sequence(struct psb_mmu_pd *pd,
+				 unsigned long address, uint32_t num_pages)
+{
+	struct psb_mmu_pt *pt;
+	unsigned long addr;
+	unsigned long end;
+	unsigned long next;
+	unsigned long f_address = address;
+
+	down_read(&pd->driver->sem);
+
+	addr = address;
+	end = addr + (num_pages << PAGE_SHIFT);
+
+	do {
+		next = psb_pd_addr_end(addr, end);
+		pt = psb_mmu_pt_alloc_map_lock(pd, addr);
+		if (!pt)
+			goto out;
+		do {
+			psb_mmu_invalidate_pte(pt, addr);
+			--pt->count;
+		} while (addr += PAGE_SIZE, addr < next);
+		psb_mmu_pt_unmap_unlock(pt);
+
+	} while (addr = next, next != end);
+
+out:
+	if (pd->hw_context != -1)
+		psb_mmu_flush_ptes(pd, f_address, num_pages, 1, 1);
+
+	up_read(&pd->driver->sem);
+
+	if (pd->hw_context != -1)
+		psb_mmu_flush(pd->driver, 0);
+
+	return;
+}
+
+void psb_mmu_remove_pages(struct psb_mmu_pd *pd, unsigned long address,
+			  uint32_t num_pages, uint32_t desired_tile_stride,
+			  uint32_t hw_tile_stride)
+{
+	struct psb_mmu_pt *pt;
+	uint32_t rows = 1;
+	uint32_t i;
+	unsigned long addr;
+	unsigned long end;
+	unsigned long next;
+	unsigned long add;
+	unsigned long row_add;
+	unsigned long f_address = address;
+
+	if (hw_tile_stride)
+		rows = num_pages / desired_tile_stride;
+	else
+		desired_tile_stride = num_pages;
+
+	add = desired_tile_stride << PAGE_SHIFT;
+	row_add = hw_tile_stride << PAGE_SHIFT;
+
+	/* down_read(&pd->driver->sem); */
+
+	/* Make sure we only need to flush this processor's cache */
+
+	for (i = 0; i < rows; ++i) {
+
+		addr = address;
+		end = addr + add;
+
+		do {
+			next = psb_pd_addr_end(addr, end);
+			pt = psb_mmu_pt_map_lock(pd, addr);
+			if (!pt)
+				continue;
+			do {
+				psb_mmu_invalidate_pte(pt, addr);
+				--pt->count;
+
+			} while (addr += PAGE_SIZE, addr < next);
+			psb_mmu_pt_unmap_unlock(pt);
+
+		} while (addr = next, next != end);
+		address += row_add;
+	}
+	if (pd->hw_context != -1)
+		psb_mmu_flush_ptes(pd, f_address, num_pages,
+				   desired_tile_stride, hw_tile_stride);
+
+	/* up_read(&pd->driver->sem); */
+
+	if (pd->hw_context != -1)
+		psb_mmu_flush(pd->driver, 0);
+}
+
+int psb_mmu_insert_pfn_sequence(struct psb_mmu_pd *pd, uint32_t start_pfn,
+				unsigned long address, uint32_t num_pages,
+				int type)
+{
+	struct psb_mmu_pt *pt;
+	uint32_t pte;
+	unsigned long addr;
+	unsigned long end;
+	unsigned long next;
+	unsigned long f_address = address;
+	int ret = 0;
+
+	down_read(&pd->driver->sem);
+
+	addr = address;
+	end = addr + (num_pages << PAGE_SHIFT);
+
+	do {
+		next = psb_pd_addr_end(addr, end);
+		pt = psb_mmu_pt_alloc_map_lock(pd, addr);
+		if (!pt) {
+			ret = -ENOMEM;
+			goto out;
+		}
+		do {
+			pte = psb_mmu_mask_pte(start_pfn++, type);
+			psb_mmu_set_pte(pt, addr, pte);
+			pt->count++;
+		} while (addr += PAGE_SIZE, addr < next);
+		psb_mmu_pt_unmap_unlock(pt);
+
+	} while (addr = next, next != end);
+
+out:
+	if (pd->hw_context != -1)
+		psb_mmu_flush_ptes(pd, f_address, num_pages, 1, 1);
+
+	up_read(&pd->driver->sem);
+
+	if (pd->hw_context != -1)
+		psb_mmu_flush(pd->driver, 1);
+
+	return ret;
+}
+
+int psb_mmu_insert_pages(struct psb_mmu_pd *pd, struct page **pages,
+			 unsigned long address, uint32_t num_pages,
+			 uint32_t desired_tile_stride,
+			 uint32_t hw_tile_stride, int type)
+{
+	struct psb_mmu_pt *pt;
+	uint32_t rows = 1;
+	uint32_t i;
+	uint32_t pte;
+	unsigned long addr;
+	unsigned long end;
+	unsigned long next;
+	unsigned long add;
+	unsigned long row_add;
+	unsigned long f_address = address;
+	int ret = 0;
+
+	if (hw_tile_stride) {
+		if (num_pages % desired_tile_stride != 0)
+			return -EINVAL;
+		rows = num_pages / desired_tile_stride;
+	} else {
+		desired_tile_stride = num_pages;
+	}
+
+	add = desired_tile_stride << PAGE_SHIFT;
+	row_add = hw_tile_stride << PAGE_SHIFT;
+
+	down_read(&pd->driver->sem);
+
+	for (i = 0; i < rows; ++i) {
+
+		addr = address;
+		end = addr + add;
+
+		do {
+			next = psb_pd_addr_end(addr, end);
+			pt = psb_mmu_pt_alloc_map_lock(pd, addr);
+			if (!pt) {
+				ret = -ENOMEM;
+				goto out;
+			}
+			do {
+				pte =
+				    psb_mmu_mask_pte(page_to_pfn(*pages++),
+						     type);
+				psb_mmu_set_pte(pt, addr, pte);
+				pt->count++;
+			} while (addr += PAGE_SIZE, addr < next);
+			psb_mmu_pt_unmap_unlock(pt);
+
+		} while (addr = next, next != end);
+
+		address += row_add;
+	}
+out:
+	if (pd->hw_context != -1)
+		psb_mmu_flush_ptes(pd, f_address, num_pages,
+				   desired_tile_stride, hw_tile_stride);
+
+	up_read(&pd->driver->sem);
+
+	if (pd->hw_context != -1)
+		psb_mmu_flush(pd->driver, 1);
+
+	return ret;
+}
+
+int psb_mmu_virtual_to_pfn(struct psb_mmu_pd *pd, uint32_t virtual,
+			   unsigned long *pfn)
+{
+	int ret;
+	struct psb_mmu_pt *pt;
+	uint32_t tmp;
+	spinlock_t *lock = &pd->driver->lock;
+
+	down_read(&pd->driver->sem);
+	pt = psb_mmu_pt_map_lock(pd, virtual);
+	if (!pt) {
+		uint32_t *v;
+
+		spin_lock(lock);
+		v = kmap_atomic(pd->p, KM_USER0);
+		tmp = v[psb_mmu_pd_index(virtual)];
+		kunmap_atomic(v, KM_USER0);
+		spin_unlock(lock);
+
+		if (tmp != pd->invalid_pde || !(tmp & PSB_PTE_VALID) ||
+		    !(pd->invalid_pte & PSB_PTE_VALID)) {
+			ret = -EINVAL;
+			goto out;
+		}
+		ret = 0;
+		*pfn = pd->invalid_pte >> PAGE_SHIFT;
+		goto out;
+	}
+	tmp = pt->v[psb_mmu_pt_index(virtual)];
+	if (!(tmp & PSB_PTE_VALID)) {
+		ret = -EINVAL;
+	} else {
+		ret = 0;
+		*pfn = tmp >> PAGE_SHIFT;
+	}
+	psb_mmu_pt_unmap_unlock(pt);
+out:
+	up_read(&pd->driver->sem);
+	return ret;
+}
diff --git a/drivers/gpu/drm/gma500/oaktrail.h b/drivers/gpu/drm/gma500/oaktrail.h
new file mode 100644
index 000000000000..2da1f368f14e
--- /dev/null
+++ b/drivers/gpu/drm/gma500/oaktrail.h
@@ -0,0 +1,252 @@
+/**************************************************************************
+ * Copyright (c) 2007-2011, Intel Corporation.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ **************************************************************************/
+
+/* MID device specific descriptors */
+
+struct oaktrail_vbt {
+	s8 signature[4];	/*4 bytes,"$GCT" */
+	u8 revision;
+	u8 size;
+	u8 checksum;
+	void *oaktrail_gct;
+} __packed;
+
+struct oaktrail_timing_info {
+	u16 pixel_clock;
+	u8 hactive_lo;
+	u8 hblank_lo;
+	u8 hblank_hi:4;
+	u8 hactive_hi:4;
+	u8 vactive_lo;
+	u8 vblank_lo;
+	u8 vblank_hi:4;
+	u8 vactive_hi:4;
+	u8 hsync_offset_lo;
+	u8 hsync_pulse_width_lo;
+	u8 vsync_pulse_width_lo:4;
+	u8 vsync_offset_lo:4;
+	u8 vsync_pulse_width_hi:2;
+	u8 vsync_offset_hi:2;
+	u8 hsync_pulse_width_hi:2;
+	u8 hsync_offset_hi:2;
+	u8 width_mm_lo;
+	u8 height_mm_lo;
+	u8 height_mm_hi:4;
+	u8 width_mm_hi:4;
+	u8 hborder;
+	u8 vborder;
+	u8 unknown0:1;
+	u8 hsync_positive:1;
+	u8 vsync_positive:1;
+	u8 separate_sync:2;
+	u8 stereo:1;
+	u8 unknown6:1;
+	u8 interlaced:1;
+} __packed;
+
+struct gct_r10_timing_info {
+	u16 pixel_clock;
+	u32 hactive_lo:8;
+	u32 hactive_hi:4;
+	u32 hblank_lo:8;
+	u32 hblank_hi:4;
+	u32 hsync_offset_lo:8;
+	u16 hsync_offset_hi:2;
+	u16 hsync_pulse_width_lo:8;
+	u16 hsync_pulse_width_hi:2;
+	u16 hsync_positive:1;
+	u16 rsvd_1:3;
+	u8  vactive_lo:8;
+	u16 vactive_hi:4;
+	u16 vblank_lo:8;
+	u16 vblank_hi:4;
+	u16 vsync_offset_lo:4;
+	u16 vsync_offset_hi:2;
+	u16 vsync_pulse_width_lo:4;
+	u16 vsync_pulse_width_hi:2;
+	u16 vsync_positive:1;
+	u16 rsvd_2:3;
+} __packed;
+
+struct oaktrail_panel_descriptor_v1 {
+	u32 Panel_Port_Control; /* 1 dword, Register 0x61180 if LVDS */
+				/* 0x61190 if MIPI */
+	u32 Panel_Power_On_Sequencing;/*1 dword,Register 0x61208,*/
+	u32 Panel_Power_Off_Sequencing;/*1 dword,Register 0x6120C,*/
+	u32 Panel_Power_Cycle_Delay_and_Reference_Divisor;/* 1 dword */
+						/* Register 0x61210 */
+	struct oaktrail_timing_info DTD;/*18 bytes, Standard definition */
+	u16 Panel_Backlight_Inverter_Descriptor;/* 16 bits, as follows */
+				/* Bit 0, Frequency, 15 bits,0 - 32767Hz */
+			/* Bit 15, Polarity, 1 bit, 0: Normal, 1: Inverted */
+	u16 Panel_MIPI_Display_Descriptor;
+			/*16 bits, Defined as follows: */
+			/* if MIPI, 0x0000 if LVDS */
+			/* Bit 0, Type, 2 bits, */
+			/* 0: Type-1, */
+			/* 1: Type-2, */
+			/* 2: Type-3, */
+			/* 3: Type-4 */
+			/* Bit 2, Pixel Format, 4 bits */
+			/* Bit0: 16bpp (not supported in LNC), */
+			/* Bit1: 18bpp loosely packed, */
+			/* Bit2: 18bpp packed, */
+			/* Bit3: 24bpp */
+			/* Bit 6, Reserved, 2 bits, 00b */
+			/* Bit 8, Minimum Supported Frame Rate, 6 bits, 0 - 63Hz */
+			/* Bit 14, Reserved, 2 bits, 00b */
+} __packed;
+
+struct oaktrail_panel_descriptor_v2 {
+	u32 Panel_Port_Control; /* 1 dword, Register 0x61180 if LVDS */
+				/* 0x61190 if MIPI */
+	u32 Panel_Power_On_Sequencing;/*1 dword,Register 0x61208,*/
+	u32 Panel_Power_Off_Sequencing;/*1 dword,Register 0x6120C,*/
+	u8 Panel_Power_Cycle_Delay_and_Reference_Divisor;/* 1 byte */
+						/* Register 0x61210 */
+	struct oaktrail_timing_info DTD;/*18 bytes, Standard definition */
+	u16 Panel_Backlight_Inverter_Descriptor;/*16 bits, as follows*/
+				/*Bit 0, Frequency, 16 bits, 0 - 32767Hz*/
+	u8 Panel_Initial_Brightness;/* [7:0] 0 - 100% */
+			/*Bit 7, Polarity, 1 bit,0: Normal, 1: Inverted*/
+	u16 Panel_MIPI_Display_Descriptor;
+			/*16 bits, Defined as follows: */
+			/* if MIPI, 0x0000 if LVDS */
+			/* Bit 0, Type, 2 bits, */
+			/* 0: Type-1, */
+			/* 1: Type-2, */
+			/* 2: Type-3, */
+			/* 3: Type-4 */
+			/* Bit 2, Pixel Format, 4 bits */
+			/* Bit0: 16bpp (not supported in LNC), */
+			/* Bit1: 18bpp loosely packed, */
+			/* Bit2: 18bpp packed, */
+			/* Bit3: 24bpp */
+			/* Bit 6, Reserved, 2 bits, 00b */
+			/* Bit 8, Minimum Supported Frame Rate, 6 bits, 0 - 63Hz */
+			/* Bit 14, Reserved, 2 bits, 00b */
+} __packed;
+
+union oaktrail_panel_rx {
+	struct {
+		u16 NumberOfLanes:2; /*Num of Lanes, 2 bits,0 = 1 lane,*/
+			/* 1 = 2 lanes, 2 = 3 lanes, 3 = 4 lanes. */
+		u16 MaxLaneFreq:3; /* 0: 100MHz, 1: 200MHz, 2: 300MHz, */
+		/*3: 400MHz, 4: 500MHz, 5: 600MHz, 6: 700MHz, 7: 800MHz.*/
+		u16 SupportedVideoTransferMode:2; /*0: Non-burst only */
+					/* 1: Burst and non-burst */
+					/* 2/3: Reserved */
+		u16 HSClkBehavior:1; /*0: Continuous, 1: Non-continuous*/
+		u16 DuoDisplaySupport:1; /*1 bit,0: No, 1: Yes*/
+		u16 ECC_ChecksumCapabilities:1;/*1 bit,0: No, 1: Yes*/
+		u16 BidirectionalCommunication:1;/*1 bit,0: No, 1: Yes */
+		u16 Rsvd:5;/*5 bits,00000b */
+	} panelrx;
+	u16 panel_receiver;
+} __packed;
+
+struct oaktrail_gct_v1 {
+	union { /*8 bits,Defined as follows: */
+		struct {
+			u8 PanelType:4; /*4 bits, Bit field for panels*/
+					/* 0 - 3: 0 = LVDS, 1 = MIPI*/
+					/*2 bits,Specifies which of the*/
+			u8 BootPanelIndex:2;
+					/* 4 panels to use by default*/
+			u8 BootMIPI_DSI_RxIndex:2;/*Specifies which of*/
+					/* the 4 MIPI DSI receivers to use*/
+		} PD;
+		u8 PanelDescriptor;
+	};
+	struct oaktrail_panel_descriptor_v1 panel[4];/*panel descrs,38 bytes each*/
+	union oaktrail_panel_rx panelrx[4]; /* panel receivers*/
+} __packed;
+
+struct oaktrail_gct_v2 {
+	union { /*8 bits,Defined as follows: */
+		struct {
+			u8 PanelType:4; /*4 bits, Bit field for panels*/
+					/* 0 - 3: 0 = LVDS, 1 = MIPI*/
+					/*2 bits,Specifies which of the*/
+			u8 BootPanelIndex:2;
+					/* 4 panels to use by default*/
+			u8 BootMIPI_DSI_RxIndex:2;/*Specifies which of*/
+					/* the 4 MIPI DSI receivers to use*/
+		} PD;
+		u8 PanelDescriptor;
+	};
+	struct oaktrail_panel_descriptor_v2 panel[4];/*panel descrs,38 bytes each*/
+	union oaktrail_panel_rx panelrx[4]; /* panel receivers*/
+} __packed;
+
+struct oaktrail_gct_data {
+	u8 bpi; /* boot panel index, number of panel used during boot */
+	u8 pt; /* panel type, 4 bit field, 0=lvds, 1=mipi */
+	struct oaktrail_timing_info DTD; /* timing info for the selected panel */
+	u32 Panel_Port_Control;
+	u32 PP_On_Sequencing;/*1 dword,Register 0x61208,*/
+	u32 PP_Off_Sequencing;/*1 dword,Register 0x6120C,*/
+	u32 PP_Cycle_Delay;
+	u16 Panel_Backlight_Inverter_Descriptor;
+	u16 Panel_MIPI_Display_Descriptor;
+} __packed;
+
+#define MODE_SETTING_IN_CRTC		0x1
+#define MODE_SETTING_IN_ENCODER		0x2
+#define MODE_SETTING_ON_GOING		0x3
+#define MODE_SETTING_IN_DSR		0x4
+#define MODE_SETTING_ENCODER_DONE	0x8
+
+#define GCT_R10_HEADER_SIZE		16
+#define GCT_R10_DISPLAY_DESC_SIZE	28
+
+/*
+ *	Moorestown HDMI interfaces
+ */
+
+struct oaktrail_hdmi_dev {
+	struct pci_dev *dev;
+	void __iomem *regs;
+	unsigned int mmio, mmio_len;
+	int dpms_mode;
+	struct hdmi_i2c_dev *i2c_dev;
+
+	/* register state */
+	u32 saveDPLL_CTRL;
+	u32 saveDPLL_DIV_CTRL;
+	u32 saveDPLL_ADJUST;
+	u32 saveDPLL_UPDATE;
+	u32 saveDPLL_CLK_ENABLE;
+	u32 savePCH_HTOTAL_B;
+	u32 savePCH_HBLANK_B;
+	u32 savePCH_HSYNC_B;
+	u32 savePCH_VTOTAL_B;
+	u32 savePCH_VBLANK_B;
+	u32 savePCH_VSYNC_B;
+	u32 savePCH_PIPEBCONF;
+	u32 savePCH_PIPEBSRC;
+};
+
+extern void oaktrail_hdmi_setup(struct drm_device *dev);
+extern void oaktrail_hdmi_teardown(struct drm_device *dev);
+extern int  oaktrail_hdmi_i2c_init(struct pci_dev *dev);
+extern void oaktrail_hdmi_i2c_exit(struct pci_dev *dev);
+extern void oaktrail_hdmi_save(struct drm_device *dev);
+extern void oaktrail_hdmi_restore(struct drm_device *dev);
+extern void oaktrail_hdmi_init(struct drm_device *dev, struct psb_intel_mode_device *mode_dev);
diff --git a/drivers/gpu/drm/gma500/oaktrail_crtc.c b/drivers/gpu/drm/gma500/oaktrail_crtc.c
new file mode 100644
index 000000000000..9d12a3ee1600
--- /dev/null
+++ b/drivers/gpu/drm/gma500/oaktrail_crtc.c
@@ -0,0 +1,604 @@
+/*
+ * Copyright © 2009 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#include <linux/i2c.h>
+#include <linux/pm_runtime.h>
+
+#include <drm/drmP.h>
+#include "framebuffer.h"
+#include "psb_drv.h"
+#include "psb_intel_drv.h"
+#include "psb_intel_reg.h"
+#include "psb_intel_display.h"
+#include "power.h"
+
+struct psb_intel_range_t {
+	int min, max;
+};
+
+struct oaktrail_limit_t {
+	struct psb_intel_range_t dot, m, p1;
+};
+
+struct oaktrail_clock_t {
+	/* derived values */
+	int dot;
+	int m;
+	int p1;
+};
+
+#define MRST_LIMIT_LVDS_100L	    0
+#define MRST_LIMIT_LVDS_83	    1
+#define MRST_LIMIT_LVDS_100	    2
+
+#define MRST_DOT_MIN		  19750
+#define MRST_DOT_MAX		  120000
+#define MRST_M_MIN_100L		    20
+#define MRST_M_MIN_100		    10
+#define MRST_M_MIN_83		    12
+#define MRST_M_MAX_100L		    34
+#define MRST_M_MAX_100		    17
+#define MRST_M_MAX_83		    20
+#define MRST_P1_MIN		    2
+#define MRST_P1_MAX_0		    7
+#define MRST_P1_MAX_1		    8
+
+static const struct oaktrail_limit_t oaktrail_limits[] = {
+	{			/* MRST_LIMIT_LVDS_100L */
+	 .dot = {.min = MRST_DOT_MIN, .max = MRST_DOT_MAX},
+	 .m = {.min = MRST_M_MIN_100L, .max = MRST_M_MAX_100L},
+	 .p1 = {.min = MRST_P1_MIN, .max = MRST_P1_MAX_1},
+	 },
+	{			/* MRST_LIMIT_LVDS_83L */
+	 .dot = {.min = MRST_DOT_MIN, .max = MRST_DOT_MAX},
+	 .m = {.min = MRST_M_MIN_83, .max = MRST_M_MAX_83},
+	 .p1 = {.min = MRST_P1_MIN, .max = MRST_P1_MAX_0},
+	 },
+	{			/* MRST_LIMIT_LVDS_100 */
+	 .dot = {.min = MRST_DOT_MIN, .max = MRST_DOT_MAX},
+	 .m = {.min = MRST_M_MIN_100, .max = MRST_M_MAX_100},
+	 .p1 = {.min = MRST_P1_MIN, .max = MRST_P1_MAX_1},
+	 },
+};
+
+#define MRST_M_MIN	    10
+static const u32 oaktrail_m_converts[] = {
+	0x2B, 0x15, 0x2A, 0x35, 0x1A, 0x0D, 0x26, 0x33, 0x19, 0x2C,
+	0x36, 0x3B, 0x1D, 0x2E, 0x37, 0x1B, 0x2D, 0x16, 0x0B, 0x25,
+	0x12, 0x09, 0x24, 0x32, 0x39, 0x1c,
+};
+
+static const struct oaktrail_limit_t *oaktrail_limit(struct drm_crtc *crtc)
+{
+	const struct oaktrail_limit_t *limit = NULL;
+	struct drm_device *dev = crtc->dev;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+
+	if (psb_intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS)
+	    || psb_intel_pipe_has_type(crtc, INTEL_OUTPUT_MIPI)) {
+		switch (dev_priv->core_freq) {
+		case 100:
+			limit = &oaktrail_limits[MRST_LIMIT_LVDS_100L];
+			break;
+		case 166:
+			limit = &oaktrail_limits[MRST_LIMIT_LVDS_83];
+			break;
+		case 200:
+			limit = &oaktrail_limits[MRST_LIMIT_LVDS_100];
+			break;
+		}
+	} else {
+		limit = NULL;
+		dev_err(dev->dev, "oaktrail_limit Wrong display type.\n");
+	}
+
+	return limit;
+}
+
+/** Derive the pixel clock for the given refclk and divisors for 8xx chips. */
+static void oaktrail_clock(int refclk, struct oaktrail_clock_t *clock)
+{
+	clock->dot = (refclk * clock->m) / (14 * clock->p1);
+}
+
+void mrstPrintPll(char *prefix, struct oaktrail_clock_t *clock)
+{
+	pr_debug("%s: dotclock = %d,  m = %d, p1 = %d.\n",
+	     prefix, clock->dot, clock->m, clock->p1);
+}
+
+/**
+ * Returns a set of divisors for the desired target clock with the given refclk,
+ * or FALSE.  Divisor values are the actual divisors for
+ */
+static bool
+mrstFindBestPLL(struct drm_crtc *crtc, int target, int refclk,
+		struct oaktrail_clock_t *best_clock)
+{
+	struct oaktrail_clock_t clock;
+	const struct oaktrail_limit_t *limit = oaktrail_limit(crtc);
+	int err = target;
+
+	memset(best_clock, 0, sizeof(*best_clock));
+
+	for (clock.m = limit->m.min; clock.m <= limit->m.max; clock.m++) {
+		for (clock.p1 = limit->p1.min; clock.p1 <= limit->p1.max;
+		     clock.p1++) {
+			int this_err;
+
+			oaktrail_clock(refclk, &clock);
+
+			this_err = abs(clock.dot - target);
+			if (this_err < err) {
+				*best_clock = clock;
+				err = this_err;
+			}
+		}
+	}
+	dev_dbg(crtc->dev->dev, "mrstFindBestPLL err = %d.\n", err);
+	return err != target;
+}
+
+/**
+ * Sets the power management mode of the pipe and plane.
+ *
+ * This code should probably grow support for turning the cursor off and back
+ * on appropriately at the same time as we're turning the pipe off/on.
+ */
+static void oaktrail_crtc_dpms(struct drm_crtc *crtc, int mode)
+{
+	struct drm_device *dev = crtc->dev;
+	struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
+	int pipe = psb_intel_crtc->pipe;
+	int dpll_reg = (pipe == 0) ? MRST_DPLL_A : DPLL_B;
+	int dspcntr_reg = (pipe == 0) ? DSPACNTR : DSPBCNTR;
+	int dspbase_reg = (pipe == 0) ? MRST_DSPABASE : DSPBBASE;
+	int pipeconf_reg = (pipe == 0) ? PIPEACONF : PIPEBCONF;
+	u32 temp;
+	bool enabled;
+
+	if (!gma_power_begin(dev, true))
+		return;
+
+	/* XXX: When our outputs are all unaware of DPMS modes other than off
+	 * and on, we should map those modes to DRM_MODE_DPMS_OFF in the CRTC.
+	 */
+	switch (mode) {
+	case DRM_MODE_DPMS_ON:
+	case DRM_MODE_DPMS_STANDBY:
+	case DRM_MODE_DPMS_SUSPEND:
+		/* Enable the DPLL */
+		temp = REG_READ(dpll_reg);
+		if ((temp & DPLL_VCO_ENABLE) == 0) {
+			REG_WRITE(dpll_reg, temp);
+			REG_READ(dpll_reg);
+			/* Wait for the clocks to stabilize. */
+			udelay(150);
+			REG_WRITE(dpll_reg, temp | DPLL_VCO_ENABLE);
+			REG_READ(dpll_reg);
+			/* Wait for the clocks to stabilize. */
+			udelay(150);
+			REG_WRITE(dpll_reg, temp | DPLL_VCO_ENABLE);
+			REG_READ(dpll_reg);
+			/* Wait for the clocks to stabilize. */
+			udelay(150);
+		}
+		/* Enable the pipe */
+		temp = REG_READ(pipeconf_reg);
+		if ((temp & PIPEACONF_ENABLE) == 0)
+			REG_WRITE(pipeconf_reg, temp | PIPEACONF_ENABLE);
+		/* Enable the plane */
+		temp = REG_READ(dspcntr_reg);
+		if ((temp & DISPLAY_PLANE_ENABLE) == 0) {
+			REG_WRITE(dspcntr_reg,
+				  temp | DISPLAY_PLANE_ENABLE);
+			/* Flush the plane changes */
+			REG_WRITE(dspbase_reg, REG_READ(dspbase_reg));
+		}
+
+		psb_intel_crtc_load_lut(crtc);
+
+		/* Give the overlay scaler a chance to enable
+		   if it's on this pipe */
+		/* psb_intel_crtc_dpms_video(crtc, true); TODO */
+		break;
+	case DRM_MODE_DPMS_OFF:
+		/* Give the overlay scaler a chance to disable
+		 * if it's on this pipe */
+		/* psb_intel_crtc_dpms_video(crtc, FALSE); TODO */
+
+		/* Disable the VGA plane that we never use */
+		REG_WRITE(VGACNTRL, VGA_DISP_DISABLE);
+		/* Disable display plane */
+		temp = REG_READ(dspcntr_reg);
+		if ((temp & DISPLAY_PLANE_ENABLE) != 0) {
+			REG_WRITE(dspcntr_reg,
+				  temp & ~DISPLAY_PLANE_ENABLE);
+			/* Flush the plane changes */
+			REG_WRITE(dspbase_reg, REG_READ(dspbase_reg));
+			REG_READ(dspbase_reg);
+		}
+
+		/* Next, disable display pipes */
+		temp = REG_READ(pipeconf_reg);
+		if ((temp & PIPEACONF_ENABLE) != 0) {
+			REG_WRITE(pipeconf_reg, temp & ~PIPEACONF_ENABLE);
+			REG_READ(pipeconf_reg);
+		}
+		/* Wait for for the pipe disable to take effect. */
+		psb_intel_wait_for_vblank(dev);
+
+		temp = REG_READ(dpll_reg);
+		if ((temp & DPLL_VCO_ENABLE) != 0) {
+			REG_WRITE(dpll_reg, temp & ~DPLL_VCO_ENABLE);
+			REG_READ(dpll_reg);
+		}
+
+		/* Wait for the clocks to turn off. */
+		udelay(150);
+		break;
+	}
+
+	enabled = crtc->enabled && mode != DRM_MODE_DPMS_OFF;
+
+	/*Set FIFO Watermarks*/
+	REG_WRITE(DSPARB, 0x3FFF);
+	REG_WRITE(DSPFW1, 0x3F88080A);
+	REG_WRITE(DSPFW2, 0x0b060808);
+	REG_WRITE(DSPFW3, 0x0);
+	REG_WRITE(DSPFW4, 0x08030404);
+	REG_WRITE(DSPFW5, 0x04040404);
+	REG_WRITE(DSPFW6, 0x78);
+	REG_WRITE(0x70400, REG_READ(0x70400) | 0x4000);
+	/* Must write Bit 14 of the Chicken Bit Register */
+
+	gma_power_end(dev);
+}
+
+/**
+ * Return the pipe currently connected to the panel fitter,
+ * or -1 if the panel fitter is not present or not in use
+ */
+static int oaktrail_panel_fitter_pipe(struct drm_device *dev)
+{
+	u32 pfit_control;
+
+	pfit_control = REG_READ(PFIT_CONTROL);
+
+	/* See if the panel fitter is in use */
+	if ((pfit_control & PFIT_ENABLE) == 0)
+		return -1;
+	return (pfit_control >> 29) & 3;
+}
+
+static int oaktrail_crtc_mode_set(struct drm_crtc *crtc,
+			      struct drm_display_mode *mode,
+			      struct drm_display_mode *adjusted_mode,
+			      int x, int y,
+			      struct drm_framebuffer *old_fb)
+{
+	struct drm_device *dev = crtc->dev;
+	struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	int pipe = psb_intel_crtc->pipe;
+	int fp_reg = (pipe == 0) ? MRST_FPA0 : FPB0;
+	int dpll_reg = (pipe == 0) ? MRST_DPLL_A : DPLL_B;
+	int dspcntr_reg = (pipe == 0) ? DSPACNTR : DSPBCNTR;
+	int pipeconf_reg = (pipe == 0) ? PIPEACONF : PIPEBCONF;
+	int htot_reg = (pipe == 0) ? HTOTAL_A : HTOTAL_B;
+	int hblank_reg = (pipe == 0) ? HBLANK_A : HBLANK_B;
+	int hsync_reg = (pipe == 0) ? HSYNC_A : HSYNC_B;
+	int vtot_reg = (pipe == 0) ? VTOTAL_A : VTOTAL_B;
+	int vblank_reg = (pipe == 0) ? VBLANK_A : VBLANK_B;
+	int vsync_reg = (pipe == 0) ? VSYNC_A : VSYNC_B;
+	int pipesrc_reg = (pipe == 0) ? PIPEASRC : PIPEBSRC;
+	int refclk = 0;
+	struct oaktrail_clock_t clock;
+	u32 dpll = 0, fp = 0, dspcntr, pipeconf;
+	bool ok, is_sdvo = false;
+	bool is_crt = false, is_lvds = false, is_tv = false;
+	bool is_mipi = false;
+	struct drm_mode_config *mode_config = &dev->mode_config;
+	struct psb_intel_encoder *psb_intel_encoder = NULL;
+	uint64_t scalingType = DRM_MODE_SCALE_FULLSCREEN;
+	struct drm_connector *connector;
+
+	if (!gma_power_begin(dev, true))
+		return 0;
+
+	memcpy(&psb_intel_crtc->saved_mode,
+		mode,
+		sizeof(struct drm_display_mode));
+	memcpy(&psb_intel_crtc->saved_adjusted_mode,
+		adjusted_mode,
+		sizeof(struct drm_display_mode));
+
+	list_for_each_entry(connector, &mode_config->connector_list, head) {
+		if (!connector->encoder || connector->encoder->crtc != crtc)
+			continue;
+
+		psb_intel_encoder = psb_intel_attached_encoder(connector);
+
+		switch (psb_intel_encoder->type) {
+		case INTEL_OUTPUT_LVDS:
+			is_lvds = true;
+			break;
+		case INTEL_OUTPUT_SDVO:
+			is_sdvo = true;
+			break;
+		case INTEL_OUTPUT_TVOUT:
+			is_tv = true;
+			break;
+		case INTEL_OUTPUT_ANALOG:
+			is_crt = true;
+			break;
+		case INTEL_OUTPUT_MIPI:
+			is_mipi = true;
+			break;
+		}
+	}
+
+	/* Disable the VGA plane that we never use */
+	REG_WRITE(VGACNTRL, VGA_DISP_DISABLE);
+
+	/* Disable the panel fitter if it was on our pipe */
+	if (oaktrail_panel_fitter_pipe(dev) == pipe)
+		REG_WRITE(PFIT_CONTROL, 0);
+
+	REG_WRITE(pipesrc_reg,
+		  ((mode->crtc_hdisplay - 1) << 16) |
+		  (mode->crtc_vdisplay - 1));
+
+	if (psb_intel_encoder)
+		drm_connector_property_get_value(connector,
+			dev->mode_config.scaling_mode_property, &scalingType);
+
+	if (scalingType == DRM_MODE_SCALE_NO_SCALE) {
+		/* Moorestown doesn't have register support for centering so
+		 * we need to mess with the h/vblank and h/vsync start and
+		 * ends to get centering */
+		int offsetX = 0, offsetY = 0;
+
+		offsetX = (adjusted_mode->crtc_hdisplay -
+			   mode->crtc_hdisplay) / 2;
+		offsetY = (adjusted_mode->crtc_vdisplay -
+			   mode->crtc_vdisplay) / 2;
+
+		REG_WRITE(htot_reg, (mode->crtc_hdisplay - 1) |
+			((adjusted_mode->crtc_htotal - 1) << 16));
+		REG_WRITE(vtot_reg, (mode->crtc_vdisplay - 1) |
+			((adjusted_mode->crtc_vtotal - 1) << 16));
+		REG_WRITE(hblank_reg,
+			(adjusted_mode->crtc_hblank_start - offsetX - 1) |
+			((adjusted_mode->crtc_hblank_end - offsetX - 1) << 16));
+		REG_WRITE(hsync_reg,
+			(adjusted_mode->crtc_hsync_start - offsetX - 1) |
+			((adjusted_mode->crtc_hsync_end - offsetX - 1) << 16));
+		REG_WRITE(vblank_reg,
+			(adjusted_mode->crtc_vblank_start - offsetY - 1) |
+			((adjusted_mode->crtc_vblank_end - offsetY - 1) << 16));
+		REG_WRITE(vsync_reg,
+			(adjusted_mode->crtc_vsync_start - offsetY - 1) |
+			((adjusted_mode->crtc_vsync_end - offsetY - 1) << 16));
+	} else {
+		REG_WRITE(htot_reg, (adjusted_mode->crtc_hdisplay - 1) |
+			((adjusted_mode->crtc_htotal - 1) << 16));
+		REG_WRITE(vtot_reg, (adjusted_mode->crtc_vdisplay - 1) |
+			((adjusted_mode->crtc_vtotal - 1) << 16));
+		REG_WRITE(hblank_reg, (adjusted_mode->crtc_hblank_start - 1) |
+			((adjusted_mode->crtc_hblank_end - 1) << 16));
+		REG_WRITE(hsync_reg, (adjusted_mode->crtc_hsync_start - 1) |
+			((adjusted_mode->crtc_hsync_end - 1) << 16));
+		REG_WRITE(vblank_reg, (adjusted_mode->crtc_vblank_start - 1) |
+			((adjusted_mode->crtc_vblank_end - 1) << 16));
+		REG_WRITE(vsync_reg, (adjusted_mode->crtc_vsync_start - 1) |
+			((adjusted_mode->crtc_vsync_end - 1) << 16));
+	}
+
+	/* Flush the plane changes */
+	{
+		struct drm_crtc_helper_funcs *crtc_funcs =
+		    crtc->helper_private;
+		crtc_funcs->mode_set_base(crtc, x, y, old_fb);
+	}
+
+	/* setup pipeconf */
+	pipeconf = REG_READ(pipeconf_reg);
+
+	/* Set up the display plane register */
+	dspcntr = REG_READ(dspcntr_reg);
+	dspcntr |= DISPPLANE_GAMMA_ENABLE;
+
+	if (pipe == 0)
+		dspcntr |= DISPPLANE_SEL_PIPE_A;
+	else
+		dspcntr |= DISPPLANE_SEL_PIPE_B;
+
+	dev_priv->dspcntr = dspcntr |= DISPLAY_PLANE_ENABLE;
+	dev_priv->pipeconf = pipeconf |= PIPEACONF_ENABLE;
+
+	if (is_mipi)
+		goto oaktrail_crtc_mode_set_exit;
+
+	refclk = dev_priv->core_freq * 1000;
+
+	dpll = 0;		/*BIT16 = 0 for 100MHz reference */
+
+	ok = mrstFindBestPLL(crtc, adjusted_mode->clock, refclk, &clock);
+
+	if (!ok) {
+		dev_dbg(dev->dev, "mrstFindBestPLL fail in oaktrail_crtc_mode_set.\n");
+	} else {
+		dev_dbg(dev->dev, "oaktrail_crtc_mode_set pixel clock = %d,"
+			 "m = %x, p1 = %x.\n", clock.dot, clock.m,
+			 clock.p1);
+	}
+
+	fp = oaktrail_m_converts[(clock.m - MRST_M_MIN)] << 8;
+
+	dpll |= DPLL_VGA_MODE_DIS;
+
+
+	dpll |= DPLL_VCO_ENABLE;
+
+	if (is_lvds)
+		dpll |= DPLLA_MODE_LVDS;
+	else
+		dpll |= DPLLB_MODE_DAC_SERIAL;
+
+	if (is_sdvo) {
+		int sdvo_pixel_multiply =
+		    adjusted_mode->clock / mode->clock;
+
+		dpll |= DPLL_DVO_HIGH_SPEED;
+		dpll |=
+		    (sdvo_pixel_multiply -
+		     1) << SDVO_MULTIPLIER_SHIFT_HIRES;
+	}
+
+
+	/* compute bitmask from p1 value */
+	dpll |= (1 << (clock.p1 - 2)) << 17;
+
+	dpll |= DPLL_VCO_ENABLE;
+
+	mrstPrintPll("chosen", &clock);
+
+	if (dpll & DPLL_VCO_ENABLE) {
+		REG_WRITE(fp_reg, fp);
+		REG_WRITE(dpll_reg, dpll & ~DPLL_VCO_ENABLE);
+		REG_READ(dpll_reg);
+		/* Check the DPLLA lock bit PIPEACONF[29] */
+		udelay(150);
+	}
+
+	REG_WRITE(fp_reg, fp);
+	REG_WRITE(dpll_reg, dpll);
+	REG_READ(dpll_reg);
+	/* Wait for the clocks to stabilize. */
+	udelay(150);
+
+	/* write it again -- the BIOS does, after all */
+	REG_WRITE(dpll_reg, dpll);
+	REG_READ(dpll_reg);
+	/* Wait for the clocks to stabilize. */
+	udelay(150);
+
+	REG_WRITE(pipeconf_reg, pipeconf);
+	REG_READ(pipeconf_reg);
+	psb_intel_wait_for_vblank(dev);
+
+	REG_WRITE(dspcntr_reg, dspcntr);
+	psb_intel_wait_for_vblank(dev);
+
+oaktrail_crtc_mode_set_exit:
+	gma_power_end(dev);
+	return 0;
+}
+
+static bool oaktrail_crtc_mode_fixup(struct drm_crtc *crtc,
+				  struct drm_display_mode *mode,
+				  struct drm_display_mode *adjusted_mode)
+{
+	return true;
+}
+
+int oaktrail_pipe_set_base(struct drm_crtc *crtc,
+			    int x, int y, struct drm_framebuffer *old_fb)
+{
+	struct drm_device *dev = crtc->dev;
+	struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
+	struct psb_framebuffer *psbfb = to_psb_fb(crtc->fb);
+	int pipe = psb_intel_crtc->pipe;
+	unsigned long start, offset;
+
+	int dspbase = (pipe == 0 ? DSPALINOFF : DSPBBASE);
+	int dspsurf = (pipe == 0 ? DSPASURF : DSPBSURF);
+	int dspstride = (pipe == 0) ? DSPASTRIDE : DSPBSTRIDE;
+	int dspcntr_reg = (pipe == 0) ? DSPACNTR : DSPBCNTR;
+	u32 dspcntr;
+	int ret = 0;
+
+	/* no fb bound */
+	if (!crtc->fb) {
+		dev_dbg(dev->dev, "No FB bound\n");
+		return 0;
+	}
+
+	if (!gma_power_begin(dev, true))
+		return 0;
+
+	start = psbfb->gtt->offset;
+	offset = y * crtc->fb->pitches[0] + x * (crtc->fb->bits_per_pixel / 8);
+
+	REG_WRITE(dspstride, crtc->fb->pitches[0]);
+
+	dspcntr = REG_READ(dspcntr_reg);
+	dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
+
+	switch (crtc->fb->bits_per_pixel) {
+	case 8:
+		dspcntr |= DISPPLANE_8BPP;
+		break;
+	case 16:
+		if (crtc->fb->depth == 15)
+			dspcntr |= DISPPLANE_15_16BPP;
+		else
+			dspcntr |= DISPPLANE_16BPP;
+		break;
+	case 24:
+	case 32:
+		dspcntr |= DISPPLANE_32BPP_NO_ALPHA;
+		break;
+	default:
+		dev_err(dev->dev, "Unknown color depth\n");
+		ret = -EINVAL;
+		goto pipe_set_base_exit;
+	}
+	REG_WRITE(dspcntr_reg, dspcntr);
+
+	REG_WRITE(dspbase, offset);
+	REG_READ(dspbase);
+	REG_WRITE(dspsurf, start);
+	REG_READ(dspsurf);
+
+pipe_set_base_exit:
+	gma_power_end(dev);
+	return ret;
+}
+
+static void oaktrail_crtc_prepare(struct drm_crtc *crtc)
+{
+	struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
+	crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF);
+}
+
+static void oaktrail_crtc_commit(struct drm_crtc *crtc)
+{
+	struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
+	crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON);
+}
+
+const struct drm_crtc_helper_funcs oaktrail_helper_funcs = {
+	.dpms = oaktrail_crtc_dpms,
+	.mode_fixup = oaktrail_crtc_mode_fixup,
+	.mode_set = oaktrail_crtc_mode_set,
+	.mode_set_base = oaktrail_pipe_set_base,
+	.prepare = oaktrail_crtc_prepare,
+	.commit = oaktrail_crtc_commit,
+};
+
diff --git a/drivers/gpu/drm/gma500/oaktrail_device.c b/drivers/gpu/drm/gma500/oaktrail_device.c
new file mode 100644
index 000000000000..63aea2f010d9
--- /dev/null
+++ b/drivers/gpu/drm/gma500/oaktrail_device.c
@@ -0,0 +1,512 @@
+/**************************************************************************
+ * Copyright (c) 2011, Intel Corporation.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ **************************************************************************/
+
+#include <linux/backlight.h>
+#include <linux/module.h>
+#include <linux/dmi.h>
+#include <drm/drmP.h>
+#include <drm/drm.h>
+#include "gma_drm.h"
+#include "psb_drv.h"
+#include "psb_reg.h"
+#include "psb_intel_reg.h"
+#include <asm/mrst.h>
+#include <asm/intel_scu_ipc.h>
+#include "mid_bios.h"
+#include "intel_bios.h"
+
+static int oaktrail_output_init(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	if (dev_priv->iLVDS_enable)
+		oaktrail_lvds_init(dev, &dev_priv->mode_dev);
+	else
+		dev_err(dev->dev, "DSI is not supported\n");
+	if (dev_priv->hdmi_priv)
+		oaktrail_hdmi_init(dev, &dev_priv->mode_dev);
+	return 0;
+}
+
+/*
+ *	Provide the low level interfaces for the Moorestown backlight
+ */
+
+#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
+
+#define MRST_BLC_MAX_PWM_REG_FREQ	    0xFFFF
+#define BLC_PWM_PRECISION_FACTOR 100	/* 10000000 */
+#define BLC_PWM_FREQ_CALC_CONSTANT 32
+#define MHz 1000000
+#define BLC_ADJUSTMENT_MAX 100
+
+static struct backlight_device *oaktrail_backlight_device;
+static int oaktrail_brightness;
+
+static int oaktrail_set_brightness(struct backlight_device *bd)
+{
+	struct drm_device *dev = bl_get_data(oaktrail_backlight_device);
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	int level = bd->props.brightness;
+	u32 blc_pwm_ctl;
+	u32 max_pwm_blc;
+
+	/* Percentage 1-100% being valid */
+	if (level < 1)
+		level = 1;
+
+	if (gma_power_begin(dev, 0)) {
+		/* Calculate and set the brightness value */
+		max_pwm_blc = REG_READ(BLC_PWM_CTL) >> 16;
+		blc_pwm_ctl = level * max_pwm_blc / 100;
+
+		/* Adjust the backlight level with the percent in
+		 * dev_priv->blc_adj1;
+		 */
+		blc_pwm_ctl = blc_pwm_ctl * dev_priv->blc_adj1;
+		blc_pwm_ctl = blc_pwm_ctl / 100;
+
+		/* Adjust the backlight level with the percent in
+		 * dev_priv->blc_adj2;
+		 */
+		blc_pwm_ctl = blc_pwm_ctl * dev_priv->blc_adj2;
+		blc_pwm_ctl = blc_pwm_ctl / 100;
+
+		/* force PWM bit on */
+		REG_WRITE(BLC_PWM_CTL2, (0x80000000 | REG_READ(BLC_PWM_CTL2)));
+		REG_WRITE(BLC_PWM_CTL, (max_pwm_blc << 16) | blc_pwm_ctl);
+		gma_power_end(dev);
+	}
+	oaktrail_brightness = level;
+	return 0;
+}
+
+static int oaktrail_get_brightness(struct backlight_device *bd)
+{
+	/* return locally cached var instead of HW read (due to DPST etc.) */
+	/* FIXME: ideally return actual value in case firmware fiddled with
+	   it */
+	return oaktrail_brightness;
+}
+
+static int device_backlight_init(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	unsigned long core_clock;
+	u16 bl_max_freq;
+	uint32_t value;
+	uint32_t blc_pwm_precision_factor;
+
+	dev_priv->blc_adj1 = BLC_ADJUSTMENT_MAX;
+	dev_priv->blc_adj2 = BLC_ADJUSTMENT_MAX;
+	bl_max_freq = 256;
+	/* this needs to be set elsewhere */
+	blc_pwm_precision_factor = BLC_PWM_PRECISION_FACTOR;
+
+	core_clock = dev_priv->core_freq;
+
+	value = (core_clock * MHz) / BLC_PWM_FREQ_CALC_CONSTANT;
+	value *= blc_pwm_precision_factor;
+	value /= bl_max_freq;
+	value /= blc_pwm_precision_factor;
+
+	if (value > (unsigned long long)MRST_BLC_MAX_PWM_REG_FREQ)
+			return -ERANGE;
+
+	if (gma_power_begin(dev, false)) {
+		REG_WRITE(BLC_PWM_CTL2, (0x80000000 | REG_READ(BLC_PWM_CTL2)));
+		REG_WRITE(BLC_PWM_CTL, value | (value << 16));
+		gma_power_end(dev);
+	}
+	return 0;
+}
+
+static const struct backlight_ops oaktrail_ops = {
+	.get_brightness = oaktrail_get_brightness,
+	.update_status  = oaktrail_set_brightness,
+};
+
+int oaktrail_backlight_init(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	int ret;
+	struct backlight_properties props;
+
+	memset(&props, 0, sizeof(struct backlight_properties));
+	props.max_brightness = 100;
+	props.type = BACKLIGHT_PLATFORM;
+
+	oaktrail_backlight_device = backlight_device_register("oaktrail-bl",
+				NULL, (void *)dev, &oaktrail_ops, &props);
+
+	if (IS_ERR(oaktrail_backlight_device))
+		return PTR_ERR(oaktrail_backlight_device);
+
+	ret = device_backlight_init(dev);
+	if (ret < 0) {
+		backlight_device_unregister(oaktrail_backlight_device);
+		return ret;
+	}
+	oaktrail_backlight_device->props.brightness = 100;
+	oaktrail_backlight_device->props.max_brightness = 100;
+	backlight_update_status(oaktrail_backlight_device);
+	dev_priv->backlight_device = oaktrail_backlight_device;
+	return 0;
+}
+
+#endif
+
+/*
+ *	Provide the Moorestown specific chip logic and low level methods
+ *	for power management
+ */
+
+static void oaktrail_init_pm(struct drm_device *dev)
+{
+}
+
+/**
+ *	oaktrail_save_display_registers	-	save registers lost on suspend
+ *	@dev: our DRM device
+ *
+ *	Save the state we need in order to be able to restore the interface
+ *	upon resume from suspend
+ */
+static int oaktrail_save_display_registers(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	int i;
+	u32 pp_stat;
+
+	/* Display arbitration control + watermarks */
+	dev_priv->saveDSPARB = PSB_RVDC32(DSPARB);
+	dev_priv->saveDSPFW1 = PSB_RVDC32(DSPFW1);
+	dev_priv->saveDSPFW2 = PSB_RVDC32(DSPFW2);
+	dev_priv->saveDSPFW3 = PSB_RVDC32(DSPFW3);
+	dev_priv->saveDSPFW4 = PSB_RVDC32(DSPFW4);
+	dev_priv->saveDSPFW5 = PSB_RVDC32(DSPFW5);
+	dev_priv->saveDSPFW6 = PSB_RVDC32(DSPFW6);
+	dev_priv->saveCHICKENBIT = PSB_RVDC32(DSPCHICKENBIT);
+
+	/* Pipe & plane A info */
+	dev_priv->savePIPEACONF = PSB_RVDC32(PIPEACONF);
+	dev_priv->savePIPEASRC = PSB_RVDC32(PIPEASRC);
+	dev_priv->saveFPA0 = PSB_RVDC32(MRST_FPA0);
+	dev_priv->saveFPA1 = PSB_RVDC32(MRST_FPA1);
+	dev_priv->saveDPLL_A = PSB_RVDC32(MRST_DPLL_A);
+	dev_priv->saveHTOTAL_A = PSB_RVDC32(HTOTAL_A);
+	dev_priv->saveHBLANK_A = PSB_RVDC32(HBLANK_A);
+	dev_priv->saveHSYNC_A = PSB_RVDC32(HSYNC_A);
+	dev_priv->saveVTOTAL_A = PSB_RVDC32(VTOTAL_A);
+	dev_priv->saveVBLANK_A = PSB_RVDC32(VBLANK_A);
+	dev_priv->saveVSYNC_A = PSB_RVDC32(VSYNC_A);
+	dev_priv->saveBCLRPAT_A = PSB_RVDC32(BCLRPAT_A);
+	dev_priv->saveDSPACNTR = PSB_RVDC32(DSPACNTR);
+	dev_priv->saveDSPASTRIDE = PSB_RVDC32(DSPASTRIDE);
+	dev_priv->saveDSPAADDR = PSB_RVDC32(DSPABASE);
+	dev_priv->saveDSPASURF = PSB_RVDC32(DSPASURF);
+	dev_priv->saveDSPALINOFF = PSB_RVDC32(DSPALINOFF);
+	dev_priv->saveDSPATILEOFF = PSB_RVDC32(DSPATILEOFF);
+
+	/* Save cursor regs */
+	dev_priv->saveDSPACURSOR_CTRL = PSB_RVDC32(CURACNTR);
+	dev_priv->saveDSPACURSOR_BASE = PSB_RVDC32(CURABASE);
+	dev_priv->saveDSPACURSOR_POS = PSB_RVDC32(CURAPOS);
+
+	/* Save palette (gamma) */
+	for (i = 0; i < 256; i++)
+		dev_priv->save_palette_a[i] = PSB_RVDC32(PALETTE_A + (i << 2));
+
+	if (dev_priv->hdmi_priv)
+		oaktrail_hdmi_save(dev);
+
+	/* Save performance state */
+	dev_priv->savePERF_MODE = PSB_RVDC32(MRST_PERF_MODE);
+
+	/* LVDS state */
+	dev_priv->savePP_CONTROL = PSB_RVDC32(PP_CONTROL);
+	dev_priv->savePFIT_PGM_RATIOS = PSB_RVDC32(PFIT_PGM_RATIOS);
+	dev_priv->savePFIT_AUTO_RATIOS = PSB_RVDC32(PFIT_AUTO_RATIOS);
+	dev_priv->saveBLC_PWM_CTL = PSB_RVDC32(BLC_PWM_CTL);
+	dev_priv->saveBLC_PWM_CTL2 = PSB_RVDC32(BLC_PWM_CTL2);
+	dev_priv->saveLVDS = PSB_RVDC32(LVDS);
+	dev_priv->savePFIT_CONTROL = PSB_RVDC32(PFIT_CONTROL);
+	dev_priv->savePP_ON_DELAYS = PSB_RVDC32(LVDSPP_ON);
+	dev_priv->savePP_OFF_DELAYS = PSB_RVDC32(LVDSPP_OFF);
+	dev_priv->savePP_DIVISOR = PSB_RVDC32(PP_CYCLE);
+
+	/* HW overlay */
+	dev_priv->saveOV_OVADD = PSB_RVDC32(OV_OVADD);
+	dev_priv->saveOV_OGAMC0 = PSB_RVDC32(OV_OGAMC0);
+	dev_priv->saveOV_OGAMC1 = PSB_RVDC32(OV_OGAMC1);
+	dev_priv->saveOV_OGAMC2 = PSB_RVDC32(OV_OGAMC2);
+	dev_priv->saveOV_OGAMC3 = PSB_RVDC32(OV_OGAMC3);
+	dev_priv->saveOV_OGAMC4 = PSB_RVDC32(OV_OGAMC4);
+	dev_priv->saveOV_OGAMC5 = PSB_RVDC32(OV_OGAMC5);
+
+	/* DPST registers */
+	dev_priv->saveHISTOGRAM_INT_CONTROL_REG =
+					PSB_RVDC32(HISTOGRAM_INT_CONTROL);
+	dev_priv->saveHISTOGRAM_LOGIC_CONTROL_REG =
+					PSB_RVDC32(HISTOGRAM_LOGIC_CONTROL);
+	dev_priv->savePWM_CONTROL_LOGIC = PSB_RVDC32(PWM_CONTROL_LOGIC);
+
+	if (dev_priv->iLVDS_enable) {
+		/* Shut down the panel */
+		PSB_WVDC32(0, PP_CONTROL);
+
+		do {
+			pp_stat = PSB_RVDC32(PP_STATUS);
+		} while (pp_stat & 0x80000000);
+
+		/* Turn off the plane */
+		PSB_WVDC32(0x58000000, DSPACNTR);
+		/* Trigger the plane disable */
+		PSB_WVDC32(0, DSPASURF);
+
+		/* Wait ~4 ticks */
+		msleep(4);
+
+		/* Turn off pipe */
+		PSB_WVDC32(0x0, PIPEACONF);
+		/* Wait ~8 ticks */
+		msleep(8);
+
+		/* Turn off PLLs */
+		PSB_WVDC32(0, MRST_DPLL_A);
+	}
+	return 0;
+}
+
+/**
+ *	oaktrail_restore_display_registers	-	restore lost register state
+ *	@dev: our DRM device
+ *
+ *	Restore register state that was lost during suspend and resume.
+ */
+static int oaktrail_restore_display_registers(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	u32 pp_stat;
+	int i;
+
+	/* Display arbitration + watermarks */
+	PSB_WVDC32(dev_priv->saveDSPARB, DSPARB);
+	PSB_WVDC32(dev_priv->saveDSPFW1, DSPFW1);
+	PSB_WVDC32(dev_priv->saveDSPFW2, DSPFW2);
+	PSB_WVDC32(dev_priv->saveDSPFW3, DSPFW3);
+	PSB_WVDC32(dev_priv->saveDSPFW4, DSPFW4);
+	PSB_WVDC32(dev_priv->saveDSPFW5, DSPFW5);
+	PSB_WVDC32(dev_priv->saveDSPFW6, DSPFW6);
+	PSB_WVDC32(dev_priv->saveCHICKENBIT, DSPCHICKENBIT);
+
+	/* Make sure VGA plane is off. it initializes to on after reset!*/
+	PSB_WVDC32(0x80000000, VGACNTRL);
+
+	/* set the plls */
+	PSB_WVDC32(dev_priv->saveFPA0, MRST_FPA0);
+	PSB_WVDC32(dev_priv->saveFPA1, MRST_FPA1);
+
+	/* Actually enable it */
+	PSB_WVDC32(dev_priv->saveDPLL_A, MRST_DPLL_A);
+	DRM_UDELAY(150);
+
+	/* Restore mode */
+	PSB_WVDC32(dev_priv->saveHTOTAL_A, HTOTAL_A);
+	PSB_WVDC32(dev_priv->saveHBLANK_A, HBLANK_A);
+	PSB_WVDC32(dev_priv->saveHSYNC_A, HSYNC_A);
+	PSB_WVDC32(dev_priv->saveVTOTAL_A, VTOTAL_A);
+	PSB_WVDC32(dev_priv->saveVBLANK_A, VBLANK_A);
+	PSB_WVDC32(dev_priv->saveVSYNC_A, VSYNC_A);
+	PSB_WVDC32(dev_priv->savePIPEASRC, PIPEASRC);
+	PSB_WVDC32(dev_priv->saveBCLRPAT_A, BCLRPAT_A);
+
+	/* Restore performance mode*/
+	PSB_WVDC32(dev_priv->savePERF_MODE, MRST_PERF_MODE);
+
+	/* Enable the pipe*/
+	if (dev_priv->iLVDS_enable)
+		PSB_WVDC32(dev_priv->savePIPEACONF, PIPEACONF);
+
+	/* Set up the plane*/
+	PSB_WVDC32(dev_priv->saveDSPALINOFF, DSPALINOFF);
+	PSB_WVDC32(dev_priv->saveDSPASTRIDE, DSPASTRIDE);
+	PSB_WVDC32(dev_priv->saveDSPATILEOFF, DSPATILEOFF);
+
+	/* Enable the plane */
+	PSB_WVDC32(dev_priv->saveDSPACNTR, DSPACNTR);
+	PSB_WVDC32(dev_priv->saveDSPASURF, DSPASURF);
+
+	/* Enable Cursor A */
+	PSB_WVDC32(dev_priv->saveDSPACURSOR_CTRL, CURACNTR);
+	PSB_WVDC32(dev_priv->saveDSPACURSOR_POS, CURAPOS);
+	PSB_WVDC32(dev_priv->saveDSPACURSOR_BASE, CURABASE);
+
+	/* Restore palette (gamma) */
+	for (i = 0; i < 256; i++)
+		PSB_WVDC32(dev_priv->save_palette_a[i], PALETTE_A + (i << 2));
+
+	if (dev_priv->hdmi_priv)
+		oaktrail_hdmi_restore(dev);
+
+	if (dev_priv->iLVDS_enable) {
+		PSB_WVDC32(dev_priv->saveBLC_PWM_CTL2, BLC_PWM_CTL2);
+		PSB_WVDC32(dev_priv->saveLVDS, LVDS); /*port 61180h*/
+		PSB_WVDC32(dev_priv->savePFIT_CONTROL, PFIT_CONTROL);
+		PSB_WVDC32(dev_priv->savePFIT_PGM_RATIOS, PFIT_PGM_RATIOS);
+		PSB_WVDC32(dev_priv->savePFIT_AUTO_RATIOS, PFIT_AUTO_RATIOS);
+		PSB_WVDC32(dev_priv->saveBLC_PWM_CTL, BLC_PWM_CTL);
+		PSB_WVDC32(dev_priv->savePP_ON_DELAYS, LVDSPP_ON);
+		PSB_WVDC32(dev_priv->savePP_OFF_DELAYS, LVDSPP_OFF);
+		PSB_WVDC32(dev_priv->savePP_DIVISOR, PP_CYCLE);
+		PSB_WVDC32(dev_priv->savePP_CONTROL, PP_CONTROL);
+	}
+
+	/* Wait for cycle delay */
+	do {
+		pp_stat = PSB_RVDC32(PP_STATUS);
+	} while (pp_stat & 0x08000000);
+
+	/* Wait for panel power up */
+	do {
+		pp_stat = PSB_RVDC32(PP_STATUS);
+	} while (pp_stat & 0x10000000);
+
+	/* Restore HW overlay */
+	PSB_WVDC32(dev_priv->saveOV_OVADD, OV_OVADD);
+	PSB_WVDC32(dev_priv->saveOV_OGAMC0, OV_OGAMC0);
+	PSB_WVDC32(dev_priv->saveOV_OGAMC1, OV_OGAMC1);
+	PSB_WVDC32(dev_priv->saveOV_OGAMC2, OV_OGAMC2);
+	PSB_WVDC32(dev_priv->saveOV_OGAMC3, OV_OGAMC3);
+	PSB_WVDC32(dev_priv->saveOV_OGAMC4, OV_OGAMC4);
+	PSB_WVDC32(dev_priv->saveOV_OGAMC5, OV_OGAMC5);
+
+	/* DPST registers */
+	PSB_WVDC32(dev_priv->saveHISTOGRAM_INT_CONTROL_REG,
+						HISTOGRAM_INT_CONTROL);
+	PSB_WVDC32(dev_priv->saveHISTOGRAM_LOGIC_CONTROL_REG,
+						HISTOGRAM_LOGIC_CONTROL);
+	PSB_WVDC32(dev_priv->savePWM_CONTROL_LOGIC, PWM_CONTROL_LOGIC);
+
+	return 0;
+}
+
+/**
+ *	oaktrail_power_down	-	power down the display island
+ *	@dev: our DRM device
+ *
+ *	Power down the display interface of our device
+ */
+static int oaktrail_power_down(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	u32 pwr_mask ;
+	u32 pwr_sts;
+
+	pwr_mask = PSB_PWRGT_DISPLAY_MASK;
+	outl(pwr_mask, dev_priv->ospm_base + PSB_PM_SSC);
+
+	while (true) {
+		pwr_sts = inl(dev_priv->ospm_base + PSB_PM_SSS);
+		if ((pwr_sts & pwr_mask) == pwr_mask)
+			break;
+		else
+			udelay(10);
+	}
+	return 0;
+}
+
+/*
+ * oaktrail_power_up
+ *
+ * Restore power to the specified island(s) (powergating)
+ */
+static int oaktrail_power_up(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	u32 pwr_mask = PSB_PWRGT_DISPLAY_MASK;
+	u32 pwr_sts, pwr_cnt;
+
+	pwr_cnt = inl(dev_priv->ospm_base + PSB_PM_SSC);
+	pwr_cnt &= ~pwr_mask;
+	outl(pwr_cnt, (dev_priv->ospm_base + PSB_PM_SSC));
+
+	while (true) {
+		pwr_sts = inl(dev_priv->ospm_base + PSB_PM_SSS);
+		if ((pwr_sts & pwr_mask) == 0)
+			break;
+		else
+			udelay(10);
+	}
+	return 0;
+}
+
+
+static int oaktrail_chip_setup(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct oaktrail_vbt *vbt = &dev_priv->vbt_data;
+	int ret;
+	
+	ret = mid_chip_setup(dev);
+	if (ret < 0)
+		return ret;
+	if (vbt->size == 0) {
+		/* Now pull the BIOS data */
+		gma_intel_opregion_init(dev);
+		psb_intel_init_bios(dev);
+	}
+	return 0;
+}
+
+static void oaktrail_teardown(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct oaktrail_vbt *vbt = &dev_priv->vbt_data;
+
+	oaktrail_hdmi_teardown(dev);
+	if (vbt->size == 0)
+		psb_intel_destroy_bios(dev);
+}
+
+const struct psb_ops oaktrail_chip_ops = {
+	.name = "Oaktrail",
+	.accel_2d = 1,
+	.pipes = 2,
+	.crtcs = 2,
+	.sgx_offset = MRST_SGX_OFFSET,
+
+	.chip_setup = oaktrail_chip_setup,
+	.chip_teardown = oaktrail_teardown,
+	.crtc_helper = &oaktrail_helper_funcs,
+	.crtc_funcs = &psb_intel_crtc_funcs,
+
+	.output_init = oaktrail_output_init,
+
+#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
+	.backlight_init = oaktrail_backlight_init,
+#endif
+
+	.init_pm = oaktrail_init_pm,
+	.save_regs = oaktrail_save_display_registers,
+	.restore_regs = oaktrail_restore_display_registers,
+	.power_down = oaktrail_power_down,
+	.power_up = oaktrail_power_up,
+
+	.i2c_bus = 1,
+};
diff --git a/drivers/gpu/drm/gma500/oaktrail_hdmi.c b/drivers/gpu/drm/gma500/oaktrail_hdmi.c
new file mode 100644
index 000000000000..36878a60080d
--- /dev/null
+++ b/drivers/gpu/drm/gma500/oaktrail_hdmi.c
@@ -0,0 +1,859 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *	Li Peng <peng.li@intel.com>
+ */
+
+#include <drm/drmP.h>
+#include <drm/drm.h>
+#include "psb_intel_drv.h"
+#include "psb_intel_reg.h"
+#include "psb_drv.h"
+
+#define HDMI_READ(reg)		readl(hdmi_dev->regs + (reg))
+#define HDMI_WRITE(reg, val)	writel(val, hdmi_dev->regs + (reg))
+
+#define HDMI_HCR	0x1000
+#define HCR_ENABLE_HDCP		(1 << 5)
+#define HCR_ENABLE_AUDIO	(1 << 2)
+#define HCR_ENABLE_PIXEL	(1 << 1)
+#define HCR_ENABLE_TMDS		(1 << 0)
+
+#define HDMI_HICR	0x1004
+#define HDMI_HSR	0x1008
+#define HDMI_HISR	0x100C
+#define HDMI_DETECT_HDP		(1 << 0)
+
+#define HDMI_VIDEO_REG	0x3000
+#define HDMI_UNIT_EN		(1 << 7)
+#define HDMI_MODE_OUTPUT	(1 << 0)
+#define HDMI_HBLANK_A	0x3100
+
+#define HDMI_AUDIO_CTRL	0x4000
+#define HDMI_ENABLE_AUDIO	(1 << 0)
+
+#define PCH_HTOTAL_B	0x3100
+#define PCH_HBLANK_B	0x3104
+#define PCH_HSYNC_B	0x3108
+#define PCH_VTOTAL_B	0x310C
+#define PCH_VBLANK_B	0x3110
+#define PCH_VSYNC_B	0x3114
+#define PCH_PIPEBSRC	0x311C
+
+#define PCH_PIPEB_DSL	0x3800
+#define PCH_PIPEB_SLC	0x3804
+#define PCH_PIPEBCONF	0x3808
+#define PCH_PIPEBSTAT	0x3824
+
+#define CDVO_DFT	0x5000
+#define CDVO_SLEWRATE	0x5004
+#define CDVO_STRENGTH	0x5008
+#define CDVO_RCOMP	0x500C
+
+#define DPLL_CTRL       0x6000
+#define DPLL_PDIV_SHIFT		16
+#define DPLL_PDIV_MASK		(0xf << 16)
+#define DPLL_PWRDN		(1 << 4)
+#define DPLL_RESET		(1 << 3)
+#define DPLL_FASTEN		(1 << 2)
+#define DPLL_ENSTAT		(1 << 1)
+#define DPLL_DITHEN		(1 << 0)
+
+#define DPLL_DIV_CTRL   0x6004
+#define DPLL_CLKF_MASK		0xffffffc0
+#define DPLL_CLKR_MASK		(0x3f)
+
+#define DPLL_CLK_ENABLE 0x6008
+#define DPLL_EN_DISP		(1 << 31)
+#define DPLL_SEL_HDMI		(1 << 8)
+#define DPLL_EN_HDMI		(1 << 1)
+#define DPLL_EN_VGA		(1 << 0)
+
+#define DPLL_ADJUST     0x600C
+#define DPLL_STATUS     0x6010
+#define DPLL_UPDATE     0x6014
+#define DPLL_DFT        0x6020
+
+struct intel_range {
+	int	min, max;
+};
+
+struct oaktrail_hdmi_limit {
+	struct intel_range vco, np, nr, nf;
+};
+
+struct oaktrail_hdmi_clock {
+	int np;
+	int nr;
+	int nf;
+	int dot;
+};
+
+#define VCO_MIN		320000
+#define VCO_MAX		1650000
+#define	NP_MIN		1
+#define	NP_MAX		15
+#define	NR_MIN		1
+#define	NR_MAX		64
+#define NF_MIN		2
+#define NF_MAX		4095
+
+static const struct oaktrail_hdmi_limit oaktrail_hdmi_limit = {
+	.vco = { .min = VCO_MIN,		.max = VCO_MAX },
+	.np  = { .min = NP_MIN,			.max = NP_MAX  },
+	.nr  = { .min = NR_MIN,			.max = NR_MAX  },
+	.nf  = { .min = NF_MIN,			.max = NF_MAX  },
+};
+
+static void wait_for_vblank(struct drm_device *dev)
+{
+	/* FIXME: Can we do this as a sleep ? */
+	/* Wait for 20ms, i.e. one cycle at 50hz. */
+	mdelay(20);
+}
+
+static void scu_busy_loop(void *scu_base)
+{
+	u32 status = 0;
+	u32 loop_count = 0;
+
+	status = readl(scu_base + 0x04);
+	while (status & 1) {
+		udelay(1); /* scu processing time is in few u secods */
+		status = readl(scu_base + 0x04);
+		loop_count++;
+		/* break if scu doesn't reset busy bit after huge retry */
+		if (loop_count > 1000) {
+			DRM_DEBUG_KMS("SCU IPC timed out");
+			return;
+		}
+	}
+}
+
+static void oaktrail_hdmi_reset(struct drm_device *dev)
+{
+	void *base;
+	/* FIXME: at least make these defines */
+	unsigned int scu_ipc_mmio = 0xff11c000;
+	int scu_len = 1024;
+
+	base = ioremap((resource_size_t)scu_ipc_mmio, scu_len);
+	if (base == NULL) {
+		DRM_ERROR("failed to map SCU mmio\n");
+		return;
+	}
+
+	/* scu ipc: assert hdmi controller reset */
+	writel(0xff11d118, base + 0x0c);
+	writel(0x7fffffdf, base + 0x80);
+	writel(0x42005, base + 0x0);
+	scu_busy_loop(base);
+
+	/* scu ipc: de-assert hdmi controller reset */
+	writel(0xff11d118, base + 0x0c);
+	writel(0x7fffffff, base + 0x80);
+	writel(0x42005, base + 0x0);
+	scu_busy_loop(base);
+
+	iounmap(base);
+}
+
+static void oaktrail_hdmi_audio_enable(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct oaktrail_hdmi_dev *hdmi_dev = dev_priv->hdmi_priv;
+
+	HDMI_WRITE(HDMI_HCR, 0x67);
+	HDMI_READ(HDMI_HCR);
+
+	HDMI_WRITE(0x51a8, 0x10);
+	HDMI_READ(0x51a8);
+
+	HDMI_WRITE(HDMI_AUDIO_CTRL, 0x1);
+	HDMI_READ(HDMI_AUDIO_CTRL);
+}
+
+static void oaktrail_hdmi_audio_disable(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct oaktrail_hdmi_dev *hdmi_dev = dev_priv->hdmi_priv;
+
+	HDMI_WRITE(0x51a8, 0x0);
+	HDMI_READ(0x51a8);
+
+	HDMI_WRITE(HDMI_AUDIO_CTRL, 0x0);
+	HDMI_READ(HDMI_AUDIO_CTRL);
+
+	HDMI_WRITE(HDMI_HCR, 0x47);
+	HDMI_READ(HDMI_HCR);
+}
+
+void oaktrail_crtc_hdmi_dpms(struct drm_crtc *crtc, int mode)
+{
+	struct drm_device *dev = crtc->dev;
+	u32 temp;
+
+	switch (mode) {
+	case DRM_MODE_DPMS_OFF:
+		/* Disable VGACNTRL */
+		REG_WRITE(VGACNTRL, 0x80000000);
+
+		/* Disable plane */
+		temp = REG_READ(DSPBCNTR);
+		if ((temp & DISPLAY_PLANE_ENABLE) != 0) {
+			REG_WRITE(DSPBCNTR, temp & ~DISPLAY_PLANE_ENABLE);
+			REG_READ(DSPBCNTR);
+			/* Flush the plane changes */
+			REG_WRITE(DSPBSURF, REG_READ(DSPBSURF));
+			REG_READ(DSPBSURF);
+		}
+
+		/* Disable pipe B */
+		temp = REG_READ(PIPEBCONF);
+		if ((temp & PIPEACONF_ENABLE) != 0) {
+			REG_WRITE(PIPEBCONF, temp & ~PIPEACONF_ENABLE);
+			REG_READ(PIPEBCONF);
+		}
+
+		/* Disable LNW Pipes, etc */
+		temp = REG_READ(PCH_PIPEBCONF);
+		if ((temp & PIPEACONF_ENABLE) != 0) {
+			REG_WRITE(PCH_PIPEBCONF, temp & ~PIPEACONF_ENABLE);
+			REG_READ(PCH_PIPEBCONF);
+		}
+		/* wait for pipe off */
+		udelay(150);
+		/* Disable dpll */
+		temp = REG_READ(DPLL_CTRL);
+		if ((temp & DPLL_PWRDN) == 0) {
+			REG_WRITE(DPLL_CTRL, temp | (DPLL_PWRDN | DPLL_RESET));
+			REG_WRITE(DPLL_STATUS, 0x1);
+		}
+		/* wait for dpll off */
+		udelay(150);
+		break;
+	case DRM_MODE_DPMS_ON:
+	case DRM_MODE_DPMS_STANDBY:
+	case DRM_MODE_DPMS_SUSPEND:
+		/* Enable dpll */
+		temp = REG_READ(DPLL_CTRL);
+		if ((temp & DPLL_PWRDN) != 0) {
+			REG_WRITE(DPLL_CTRL, temp & ~(DPLL_PWRDN | DPLL_RESET));
+			temp = REG_READ(DPLL_CLK_ENABLE);
+			REG_WRITE(DPLL_CLK_ENABLE, temp | DPLL_EN_DISP | DPLL_SEL_HDMI | DPLL_EN_HDMI);
+			REG_READ(DPLL_CLK_ENABLE);
+		}
+		/* wait for dpll warm up */
+		udelay(150);
+
+		/* Enable pipe B */
+		temp = REG_READ(PIPEBCONF);
+		if ((temp & PIPEACONF_ENABLE) == 0) {
+			REG_WRITE(PIPEBCONF, temp | PIPEACONF_ENABLE);
+			REG_READ(PIPEBCONF);
+		}
+
+		/* Enable LNW Pipe B */
+		temp = REG_READ(PCH_PIPEBCONF);
+		if ((temp & PIPEACONF_ENABLE) == 0) {
+			REG_WRITE(PCH_PIPEBCONF, temp | PIPEACONF_ENABLE);
+			REG_READ(PCH_PIPEBCONF);
+		}
+		wait_for_vblank(dev);
+
+		/* Enable plane */
+		temp = REG_READ(DSPBCNTR);
+		if ((temp & DISPLAY_PLANE_ENABLE) == 0) {
+			REG_WRITE(DSPBCNTR, temp | DISPLAY_PLANE_ENABLE);
+			/* Flush the plane changes */
+			REG_WRITE(DSPBSURF, REG_READ(DSPBSURF));
+			REG_READ(DSPBSURF);
+		}
+		psb_intel_crtc_load_lut(crtc);
+	}
+	/* DSPARB */
+	REG_WRITE(DSPARB, 0x00003fbf);
+	/* FW1 */
+	REG_WRITE(0x70034, 0x3f880a0a);
+	/* FW2 */
+	REG_WRITE(0x70038, 0x0b060808);
+	/* FW4 */
+	REG_WRITE(0x70050, 0x08030404);
+	/* FW5 */
+	REG_WRITE(0x70054, 0x04040404);
+	/* LNC Chicken Bits */
+	REG_WRITE(0x70400, 0x4000);
+}
+
+
+static void oaktrail_hdmi_dpms(struct drm_encoder *encoder, int mode)
+{
+	static int dpms_mode = -1;
+
+	struct drm_device *dev = encoder->dev;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct oaktrail_hdmi_dev *hdmi_dev = dev_priv->hdmi_priv;
+	u32 temp;
+
+	if (dpms_mode == mode)
+		return;
+
+	if (mode != DRM_MODE_DPMS_ON)
+		temp = 0x0;
+	else
+		temp = 0x99;
+
+	dpms_mode = mode;
+	HDMI_WRITE(HDMI_VIDEO_REG, temp);
+}
+
+static unsigned int htotal_calculate(struct drm_display_mode *mode)
+{
+	u32 htotal, new_crtc_htotal;
+
+	htotal = (mode->crtc_hdisplay - 1) | ((mode->crtc_htotal - 1) << 16);
+
+	/*
+	 * 1024 x 768  new_crtc_htotal = 0x1024;
+	 * 1280 x 1024 new_crtc_htotal = 0x0c34;
+	 */
+	new_crtc_htotal = (mode->crtc_htotal - 1) * 200 * 1000 / mode->clock;
+
+	return (mode->crtc_hdisplay - 1) | (new_crtc_htotal << 16);
+}
+
+static void oaktrail_hdmi_find_dpll(struct drm_crtc *crtc, int target,
+				int refclk, struct oaktrail_hdmi_clock *best_clock)
+{
+	int np_min, np_max, nr_min, nr_max;
+	int np, nr, nf;
+
+	np_min = DIV_ROUND_UP(oaktrail_hdmi_limit.vco.min, target * 10);
+	np_max = oaktrail_hdmi_limit.vco.max / (target * 10);
+	if (np_min < oaktrail_hdmi_limit.np.min)
+		np_min = oaktrail_hdmi_limit.np.min;
+	if (np_max > oaktrail_hdmi_limit.np.max)
+		np_max = oaktrail_hdmi_limit.np.max;
+
+	nr_min = DIV_ROUND_UP((refclk * 1000), (target * 10 * np_max));
+	nr_max = DIV_ROUND_UP((refclk * 1000), (target * 10 * np_min));
+	if (nr_min < oaktrail_hdmi_limit.nr.min)
+		nr_min = oaktrail_hdmi_limit.nr.min;
+	if (nr_max > oaktrail_hdmi_limit.nr.max)
+		nr_max = oaktrail_hdmi_limit.nr.max;
+
+	np = DIV_ROUND_UP((refclk * 1000), (target * 10 * nr_max));
+	nr = DIV_ROUND_UP((refclk * 1000), (target * 10 * np));
+	nf = DIV_ROUND_CLOSEST((target * 10 * np * nr), refclk);
+	DRM_DEBUG_KMS("np, nr, nf %d %d %d\n", np, nr, nf);
+
+	/*
+	 * 1024 x 768  np = 1; nr = 0x26; nf = 0x0fd8000;
+	 * 1280 x 1024 np = 1; nr = 0x17; nf = 0x1034000;
+	 */
+	best_clock->np = np;
+	best_clock->nr = nr - 1;
+	best_clock->nf = (nf << 14);
+}
+
+int oaktrail_crtc_hdmi_mode_set(struct drm_crtc *crtc,
+			    struct drm_display_mode *mode,
+			    struct drm_display_mode *adjusted_mode,
+			    int x, int y,
+			    struct drm_framebuffer *old_fb)
+{
+	struct drm_device *dev = crtc->dev;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct oaktrail_hdmi_dev *hdmi_dev = dev_priv->hdmi_priv;
+	int pipe = 1;
+	int htot_reg = (pipe == 0) ? HTOTAL_A : HTOTAL_B;
+	int hblank_reg = (pipe == 0) ? HBLANK_A : HBLANK_B;
+	int hsync_reg = (pipe == 0) ? HSYNC_A : HSYNC_B;
+	int vtot_reg = (pipe == 0) ? VTOTAL_A : VTOTAL_B;
+	int vblank_reg = (pipe == 0) ? VBLANK_A : VBLANK_B;
+	int vsync_reg = (pipe == 0) ? VSYNC_A : VSYNC_B;
+	int dspsize_reg = (pipe == 0) ? DSPASIZE : DSPBSIZE;
+	int dsppos_reg = (pipe == 0) ? DSPAPOS : DSPBPOS;
+	int pipesrc_reg = (pipe == 0) ? PIPEASRC : PIPEBSRC;
+	int pipeconf_reg = (pipe == 0) ? PIPEACONF : PIPEBCONF;
+	int refclk;
+	struct oaktrail_hdmi_clock clock;
+	u32 dspcntr, pipeconf, dpll, temp;
+	int dspcntr_reg = DSPBCNTR;
+
+	/* Disable the VGA plane that we never use */
+	REG_WRITE(VGACNTRL, VGA_DISP_DISABLE);
+
+	/* XXX: Disable the panel fitter if it was on our pipe */
+
+	/* Disable dpll if necessary */
+	dpll = REG_READ(DPLL_CTRL);
+	if ((dpll & DPLL_PWRDN) == 0) {
+		REG_WRITE(DPLL_CTRL, dpll | (DPLL_PWRDN | DPLL_RESET));
+		REG_WRITE(DPLL_DIV_CTRL, 0x00000000);
+		REG_WRITE(DPLL_STATUS, 0x1);
+	}
+	udelay(150);
+
+	/* reset controller: FIXME - can we sort out the ioremap mess ? */
+	iounmap(hdmi_dev->regs);
+	oaktrail_hdmi_reset(dev);
+
+	/* program and enable dpll */
+	refclk = 25000;
+	oaktrail_hdmi_find_dpll(crtc, adjusted_mode->clock, refclk, &clock);
+
+	/* Setting DPLL */
+	dpll = REG_READ(DPLL_CTRL);
+	dpll &= ~DPLL_PDIV_MASK;
+	dpll &= ~(DPLL_PWRDN | DPLL_RESET);
+	REG_WRITE(DPLL_CTRL, 0x00000008);
+	REG_WRITE(DPLL_DIV_CTRL, ((clock.nf << 6) | clock.nr));
+	REG_WRITE(DPLL_ADJUST, ((clock.nf >> 14) - 1));
+	REG_WRITE(DPLL_CTRL, (dpll | (clock.np << DPLL_PDIV_SHIFT) | DPLL_ENSTAT | DPLL_DITHEN));
+	REG_WRITE(DPLL_UPDATE, 0x80000000);
+	REG_WRITE(DPLL_CLK_ENABLE, 0x80050102);
+	udelay(150);
+
+	hdmi_dev->regs = ioremap(hdmi_dev->mmio, hdmi_dev->mmio_len);
+	if (hdmi_dev->regs == NULL) {
+		DRM_ERROR("failed to do hdmi mmio mapping\n");
+		return -ENOMEM;
+	}
+
+	/* configure HDMI */
+	HDMI_WRITE(0x1004, 0x1fd);
+	HDMI_WRITE(0x2000, 0x1);
+	HDMI_WRITE(0x2008, 0x0);
+	HDMI_WRITE(0x3130, 0x8);
+	HDMI_WRITE(0x101c, 0x1800810);
+
+	temp = htotal_calculate(adjusted_mode);
+	REG_WRITE(htot_reg, temp);
+	REG_WRITE(hblank_reg, (adjusted_mode->crtc_hblank_start - 1) | ((adjusted_mode->crtc_hblank_end - 1) << 16));
+	REG_WRITE(hsync_reg, (adjusted_mode->crtc_hsync_start - 1) | ((adjusted_mode->crtc_hsync_end - 1) << 16));
+	REG_WRITE(vtot_reg, (adjusted_mode->crtc_vdisplay - 1) | ((adjusted_mode->crtc_vtotal - 1) << 16));
+	REG_WRITE(vblank_reg, (adjusted_mode->crtc_vblank_start - 1) | ((adjusted_mode->crtc_vblank_end - 1) << 16));
+	REG_WRITE(vsync_reg, (adjusted_mode->crtc_vsync_start - 1) | ((adjusted_mode->crtc_vsync_end - 1) << 16));
+	REG_WRITE(pipesrc_reg,
+		((mode->crtc_hdisplay - 1) << 16) |  (mode->crtc_vdisplay - 1));
+
+	REG_WRITE(PCH_HTOTAL_B, (adjusted_mode->crtc_hdisplay - 1) | ((adjusted_mode->crtc_htotal - 1) << 16));
+	REG_WRITE(PCH_HBLANK_B, (adjusted_mode->crtc_hblank_start - 1) | ((adjusted_mode->crtc_hblank_end - 1) << 16));
+	REG_WRITE(PCH_HSYNC_B, (adjusted_mode->crtc_hsync_start - 1) | ((adjusted_mode->crtc_hsync_end - 1) << 16));
+	REG_WRITE(PCH_VTOTAL_B, (adjusted_mode->crtc_vdisplay - 1) | ((adjusted_mode->crtc_vtotal - 1) << 16));
+	REG_WRITE(PCH_VBLANK_B, (adjusted_mode->crtc_vblank_start - 1) | ((adjusted_mode->crtc_vblank_end - 1) << 16));
+	REG_WRITE(PCH_VSYNC_B, (adjusted_mode->crtc_vsync_start - 1) | ((adjusted_mode->crtc_vsync_end - 1) << 16));
+	REG_WRITE(PCH_PIPEBSRC,
+		((mode->crtc_hdisplay - 1) << 16) |  (mode->crtc_vdisplay - 1));
+
+	temp = adjusted_mode->crtc_hblank_end - adjusted_mode->crtc_hblank_start;
+	HDMI_WRITE(HDMI_HBLANK_A, ((adjusted_mode->crtc_hdisplay - 1) << 16) |  temp);
+
+	REG_WRITE(dspsize_reg,
+			((mode->vdisplay - 1) << 16) | (mode->hdisplay - 1));
+	REG_WRITE(dsppos_reg, 0);
+
+	/* Flush the plane changes */
+	{
+		struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
+		crtc_funcs->mode_set_base(crtc, x, y, old_fb);
+	}
+
+	/* Set up the display plane register */
+	dspcntr = REG_READ(dspcntr_reg);
+	dspcntr |= DISPPLANE_GAMMA_ENABLE;
+	dspcntr |= DISPPLANE_SEL_PIPE_B;
+	dspcntr |= DISPLAY_PLANE_ENABLE;
+
+	/* setup pipeconf */
+	pipeconf = REG_READ(pipeconf_reg);
+	pipeconf |= PIPEACONF_ENABLE;
+
+	REG_WRITE(pipeconf_reg, pipeconf);
+	REG_READ(pipeconf_reg);
+
+	REG_WRITE(PCH_PIPEBCONF, pipeconf);
+	REG_READ(PCH_PIPEBCONF);
+	wait_for_vblank(dev);
+
+	REG_WRITE(dspcntr_reg, dspcntr);
+	wait_for_vblank(dev);
+
+	return 0;
+}
+
+static int oaktrail_hdmi_mode_valid(struct drm_connector *connector,
+				struct drm_display_mode *mode)
+{
+	if (mode->clock > 165000)
+		return MODE_CLOCK_HIGH;
+	if (mode->clock < 20000)
+		return MODE_CLOCK_LOW;
+
+	if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
+		return MODE_NO_DBLESCAN;
+
+	return MODE_OK;
+}
+
+static bool oaktrail_hdmi_mode_fixup(struct drm_encoder *encoder,
+				 struct drm_display_mode *mode,
+				 struct drm_display_mode *adjusted_mode)
+{
+	return true;
+}
+
+static enum drm_connector_status
+oaktrail_hdmi_detect(struct drm_connector *connector, bool force)
+{
+	enum drm_connector_status status;
+	struct drm_device *dev = connector->dev;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct oaktrail_hdmi_dev *hdmi_dev = dev_priv->hdmi_priv;
+	u32 temp;
+
+	temp = HDMI_READ(HDMI_HSR);
+	DRM_DEBUG_KMS("HDMI_HSR %x\n", temp);
+
+	if ((temp & HDMI_DETECT_HDP) != 0)
+		status = connector_status_connected;
+	else
+		status = connector_status_disconnected;
+
+	return status;
+}
+
+static const unsigned char raw_edid[] = {
+	0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x10, 0xac, 0x2f, 0xa0,
+	0x53, 0x55, 0x33, 0x30, 0x16, 0x13, 0x01, 0x03, 0x0e, 0x3a, 0x24, 0x78,
+	0xea, 0xe9, 0xf5, 0xac, 0x51, 0x30, 0xb4, 0x25, 0x11, 0x50, 0x54, 0xa5,
+	0x4b, 0x00, 0x81, 0x80, 0xa9, 0x40, 0x71, 0x4f, 0xb3, 0x00, 0x01, 0x01,
+	0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x28, 0x3c, 0x80, 0xa0, 0x70, 0xb0,
+	0x23, 0x40, 0x30, 0x20, 0x36, 0x00, 0x46, 0x6c, 0x21, 0x00, 0x00, 0x1a,
+	0x00, 0x00, 0x00, 0xff, 0x00, 0x47, 0x4e, 0x37, 0x32, 0x31, 0x39, 0x35,
+	0x52, 0x30, 0x33, 0x55, 0x53, 0x0a, 0x00, 0x00, 0x00, 0xfc, 0x00, 0x44,
+	0x45, 0x4c, 0x4c, 0x20, 0x32, 0x37, 0x30, 0x39, 0x57, 0x0a, 0x20, 0x20,
+	0x00, 0x00, 0x00, 0xfd, 0x00, 0x38, 0x4c, 0x1e, 0x53, 0x11, 0x00, 0x0a,
+	0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x00, 0x8d
+};
+
+static int oaktrail_hdmi_get_modes(struct drm_connector *connector)
+{
+	struct drm_device *dev = connector->dev;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct i2c_adapter *i2c_adap;
+	struct edid *edid;
+	struct drm_display_mode *mode, *t;
+	int i = 0, ret = 0;
+
+	i2c_adap = i2c_get_adapter(3);
+	if (i2c_adap == NULL) {
+		DRM_ERROR("No ddc adapter available!\n");
+		edid = (struct edid *)raw_edid;
+	} else {
+		edid = (struct edid *)raw_edid;
+		/* FIXME ? edid = drm_get_edid(connector, i2c_adap); */
+	}
+
+	if (edid) {
+		drm_mode_connector_update_edid_property(connector, edid);
+		ret = drm_add_edid_modes(connector, edid);
+		connector->display_info.raw_edid = NULL;
+	}
+
+	/*
+	 * prune modes that require frame buffer bigger than stolen mem
+	 */
+	list_for_each_entry_safe(mode, t, &connector->probed_modes, head) {
+		if ((mode->hdisplay * mode->vdisplay * 4) >= dev_priv->vram_stolen_size) {
+			i++;
+			drm_mode_remove(connector, mode);
+		}
+	}
+	return ret - i;
+}
+
+static void oaktrail_hdmi_mode_set(struct drm_encoder *encoder,
+			       struct drm_display_mode *mode,
+			       struct drm_display_mode *adjusted_mode)
+{
+	struct drm_device *dev = encoder->dev;
+
+	oaktrail_hdmi_audio_enable(dev);
+	return;
+}
+
+static void oaktrail_hdmi_destroy(struct drm_connector *connector)
+{
+	return;
+}
+
+static const struct drm_encoder_helper_funcs oaktrail_hdmi_helper_funcs = {
+	.dpms = oaktrail_hdmi_dpms,
+	.mode_fixup = oaktrail_hdmi_mode_fixup,
+	.prepare = psb_intel_encoder_prepare,
+	.mode_set = oaktrail_hdmi_mode_set,
+	.commit = psb_intel_encoder_commit,
+};
+
+static const struct drm_connector_helper_funcs
+					oaktrail_hdmi_connector_helper_funcs = {
+	.get_modes = oaktrail_hdmi_get_modes,
+	.mode_valid = oaktrail_hdmi_mode_valid,
+	.best_encoder = psb_intel_best_encoder,
+};
+
+static const struct drm_connector_funcs oaktrail_hdmi_connector_funcs = {
+	.dpms = drm_helper_connector_dpms,
+	.detect = oaktrail_hdmi_detect,
+	.fill_modes = drm_helper_probe_single_connector_modes,
+	.destroy = oaktrail_hdmi_destroy,
+};
+
+static void oaktrail_hdmi_enc_destroy(struct drm_encoder *encoder)
+{
+	drm_encoder_cleanup(encoder);
+}
+
+static const struct drm_encoder_funcs oaktrail_hdmi_enc_funcs = {
+	.destroy = oaktrail_hdmi_enc_destroy,
+};
+
+void oaktrail_hdmi_init(struct drm_device *dev,
+					struct psb_intel_mode_device *mode_dev)
+{
+	struct psb_intel_encoder *psb_intel_encoder;
+	struct psb_intel_connector *psb_intel_connector;
+	struct drm_connector *connector;
+	struct drm_encoder *encoder;
+
+	psb_intel_encoder = kzalloc(sizeof(struct psb_intel_encoder), GFP_KERNEL);
+	if (!psb_intel_encoder)
+		return;
+
+	psb_intel_connector = kzalloc(sizeof(struct psb_intel_connector), GFP_KERNEL);
+	if (!psb_intel_connector)
+		goto failed_connector;
+
+	connector = &psb_intel_connector->base;
+	encoder = &psb_intel_encoder->base;
+	drm_connector_init(dev, connector,
+			   &oaktrail_hdmi_connector_funcs,
+			   DRM_MODE_CONNECTOR_DVID);
+
+	drm_encoder_init(dev, encoder,
+			 &oaktrail_hdmi_enc_funcs,
+			 DRM_MODE_ENCODER_TMDS);
+
+	psb_intel_connector_attach_encoder(psb_intel_connector,
+					   psb_intel_encoder);
+
+	psb_intel_encoder->type = INTEL_OUTPUT_HDMI;
+	drm_encoder_helper_add(encoder, &oaktrail_hdmi_helper_funcs);
+	drm_connector_helper_add(connector, &oaktrail_hdmi_connector_helper_funcs);
+
+	connector->display_info.subpixel_order = SubPixelHorizontalRGB;
+	connector->interlace_allowed = false;
+	connector->doublescan_allowed = false;
+	drm_sysfs_connector_add(connector);
+
+	return;
+
+failed_connector:
+	kfree(psb_intel_encoder);
+}
+
+static DEFINE_PCI_DEVICE_TABLE(hdmi_ids) = {
+	{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x080d) },
+	{}
+};
+
+void oaktrail_hdmi_setup(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct pci_dev *pdev;
+	struct oaktrail_hdmi_dev *hdmi_dev;
+	int ret;
+
+	pdev = pci_get_device(PCI_VENDOR_ID_INTEL, 0x080d, NULL);
+	if (!pdev)
+		return;
+
+	hdmi_dev = kzalloc(sizeof(struct oaktrail_hdmi_dev), GFP_KERNEL);
+	if (!hdmi_dev) {
+		dev_err(dev->dev, "failed to allocate memory\n");
+		goto out;
+	}
+
+
+	ret = pci_enable_device(pdev);
+	if (ret) {
+		dev_err(dev->dev, "failed to enable hdmi controller\n");
+		goto free;
+	}
+
+	hdmi_dev->mmio = pci_resource_start(pdev, 0);
+	hdmi_dev->mmio_len = pci_resource_len(pdev, 0);
+	hdmi_dev->regs = ioremap(hdmi_dev->mmio, hdmi_dev->mmio_len);
+	if (!hdmi_dev->regs) {
+		dev_err(dev->dev, "failed to map hdmi mmio\n");
+		goto free;
+	}
+
+	hdmi_dev->dev = pdev;
+	pci_set_drvdata(pdev, hdmi_dev);
+
+	/* Initialize i2c controller */
+	ret = oaktrail_hdmi_i2c_init(hdmi_dev->dev);
+	if (ret)
+		dev_err(dev->dev, "HDMI I2C initialization failed\n");
+
+	dev_priv->hdmi_priv = hdmi_dev;
+	oaktrail_hdmi_audio_disable(dev);
+	return;
+
+free:
+	kfree(hdmi_dev);
+out:
+	return;
+}
+
+void oaktrail_hdmi_teardown(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct oaktrail_hdmi_dev *hdmi_dev = dev_priv->hdmi_priv;
+	struct pci_dev *pdev;
+
+	if (hdmi_dev) {
+		pdev = hdmi_dev->dev;
+		pci_set_drvdata(pdev, NULL);
+		oaktrail_hdmi_i2c_exit(pdev);
+		iounmap(hdmi_dev->regs);
+		kfree(hdmi_dev);
+		pci_dev_put(pdev);
+	}
+}
+
+/* save HDMI register state */
+void oaktrail_hdmi_save(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct oaktrail_hdmi_dev *hdmi_dev = dev_priv->hdmi_priv;
+	int i;
+
+	/* dpll */
+	hdmi_dev->saveDPLL_CTRL = PSB_RVDC32(DPLL_CTRL);
+	hdmi_dev->saveDPLL_DIV_CTRL = PSB_RVDC32(DPLL_DIV_CTRL);
+	hdmi_dev->saveDPLL_ADJUST = PSB_RVDC32(DPLL_ADJUST);
+	hdmi_dev->saveDPLL_UPDATE = PSB_RVDC32(DPLL_UPDATE);
+	hdmi_dev->saveDPLL_CLK_ENABLE = PSB_RVDC32(DPLL_CLK_ENABLE);
+
+	/* pipe B */
+	dev_priv->savePIPEBCONF = PSB_RVDC32(PIPEBCONF);
+	dev_priv->savePIPEBSRC  = PSB_RVDC32(PIPEBSRC);
+	dev_priv->saveHTOTAL_B  = PSB_RVDC32(HTOTAL_B);
+	dev_priv->saveHBLANK_B  = PSB_RVDC32(HBLANK_B);
+	dev_priv->saveHSYNC_B   = PSB_RVDC32(HSYNC_B);
+	dev_priv->saveVTOTAL_B  = PSB_RVDC32(VTOTAL_B);
+	dev_priv->saveVBLANK_B  = PSB_RVDC32(VBLANK_B);
+	dev_priv->saveVSYNC_B   = PSB_RVDC32(VSYNC_B);
+
+	hdmi_dev->savePCH_PIPEBCONF = PSB_RVDC32(PCH_PIPEBCONF);
+	hdmi_dev->savePCH_PIPEBSRC = PSB_RVDC32(PCH_PIPEBSRC);
+	hdmi_dev->savePCH_HTOTAL_B = PSB_RVDC32(PCH_HTOTAL_B);
+	hdmi_dev->savePCH_HBLANK_B = PSB_RVDC32(PCH_HBLANK_B);
+	hdmi_dev->savePCH_HSYNC_B  = PSB_RVDC32(PCH_HSYNC_B);
+	hdmi_dev->savePCH_VTOTAL_B = PSB_RVDC32(PCH_VTOTAL_B);
+	hdmi_dev->savePCH_VBLANK_B = PSB_RVDC32(PCH_VBLANK_B);
+	hdmi_dev->savePCH_VSYNC_B  = PSB_RVDC32(PCH_VSYNC_B);
+
+	/* plane */
+	dev_priv->saveDSPBCNTR = PSB_RVDC32(DSPBCNTR);
+	dev_priv->saveDSPBSTRIDE = PSB_RVDC32(DSPBSTRIDE);
+	dev_priv->saveDSPBADDR = PSB_RVDC32(DSPBBASE);
+	dev_priv->saveDSPBSURF = PSB_RVDC32(DSPBSURF);
+	dev_priv->saveDSPBLINOFF = PSB_RVDC32(DSPBLINOFF);
+	dev_priv->saveDSPBTILEOFF = PSB_RVDC32(DSPBTILEOFF);
+
+	/* cursor B */
+	dev_priv->saveDSPBCURSOR_CTRL = PSB_RVDC32(CURBCNTR);
+	dev_priv->saveDSPBCURSOR_BASE = PSB_RVDC32(CURBBASE);
+	dev_priv->saveDSPBCURSOR_POS = PSB_RVDC32(CURBPOS);
+
+	/* save palette */
+	for (i = 0; i < 256; i++)
+		dev_priv->save_palette_b[i] = PSB_RVDC32(PALETTE_B + (i << 2));
+}
+
+/* restore HDMI register state */
+void oaktrail_hdmi_restore(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct oaktrail_hdmi_dev *hdmi_dev = dev_priv->hdmi_priv;
+	int i;
+
+	/* dpll */
+	PSB_WVDC32(hdmi_dev->saveDPLL_CTRL, DPLL_CTRL);
+	PSB_WVDC32(hdmi_dev->saveDPLL_DIV_CTRL, DPLL_DIV_CTRL);
+	PSB_WVDC32(hdmi_dev->saveDPLL_ADJUST, DPLL_ADJUST);
+	PSB_WVDC32(hdmi_dev->saveDPLL_UPDATE, DPLL_UPDATE);
+	PSB_WVDC32(hdmi_dev->saveDPLL_CLK_ENABLE, DPLL_CLK_ENABLE);
+	DRM_UDELAY(150);
+
+	/* pipe */
+	PSB_WVDC32(dev_priv->savePIPEBSRC, PIPEBSRC);
+	PSB_WVDC32(dev_priv->saveHTOTAL_B, HTOTAL_B);
+	PSB_WVDC32(dev_priv->saveHBLANK_B, HBLANK_B);
+	PSB_WVDC32(dev_priv->saveHSYNC_B,  HSYNC_B);
+	PSB_WVDC32(dev_priv->saveVTOTAL_B, VTOTAL_B);
+	PSB_WVDC32(dev_priv->saveVBLANK_B, VBLANK_B);
+	PSB_WVDC32(dev_priv->saveVSYNC_B,  VSYNC_B);
+
+	PSB_WVDC32(hdmi_dev->savePCH_PIPEBSRC, PCH_PIPEBSRC);
+	PSB_WVDC32(hdmi_dev->savePCH_HTOTAL_B, PCH_HTOTAL_B);
+	PSB_WVDC32(hdmi_dev->savePCH_HBLANK_B, PCH_HBLANK_B);
+	PSB_WVDC32(hdmi_dev->savePCH_HSYNC_B,  PCH_HSYNC_B);
+	PSB_WVDC32(hdmi_dev->savePCH_VTOTAL_B, PCH_VTOTAL_B);
+	PSB_WVDC32(hdmi_dev->savePCH_VBLANK_B, PCH_VBLANK_B);
+	PSB_WVDC32(hdmi_dev->savePCH_VSYNC_B,  PCH_VSYNC_B);
+
+	PSB_WVDC32(dev_priv->savePIPEBCONF, PIPEBCONF);
+	PSB_WVDC32(hdmi_dev->savePCH_PIPEBCONF, PCH_PIPEBCONF);
+
+	/* plane */
+	PSB_WVDC32(dev_priv->saveDSPBLINOFF, DSPBLINOFF);
+	PSB_WVDC32(dev_priv->saveDSPBSTRIDE, DSPBSTRIDE);
+	PSB_WVDC32(dev_priv->saveDSPBTILEOFF, DSPBTILEOFF);
+	PSB_WVDC32(dev_priv->saveDSPBCNTR, DSPBCNTR);
+	PSB_WVDC32(dev_priv->saveDSPBSURF, DSPBSURF);
+
+	/* cursor B */
+	PSB_WVDC32(dev_priv->saveDSPBCURSOR_CTRL, CURBCNTR);
+	PSB_WVDC32(dev_priv->saveDSPBCURSOR_POS, CURBPOS);
+	PSB_WVDC32(dev_priv->saveDSPBCURSOR_BASE, CURBBASE);
+
+	/* restore palette */
+	for (i = 0; i < 256; i++)
+		PSB_WVDC32(dev_priv->save_palette_b[i], PALETTE_B + (i << 2));
+}
diff --git a/drivers/gpu/drm/gma500/oaktrail_hdmi_i2c.c b/drivers/gpu/drm/gma500/oaktrail_hdmi_i2c.c
new file mode 100644
index 000000000000..705440874ac0
--- /dev/null
+++ b/drivers/gpu/drm/gma500/oaktrail_hdmi_i2c.c
@@ -0,0 +1,328 @@
+/*
+ * Copyright © 2010 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *	Li Peng <peng.li@intel.com>
+ */
+
+#include <linux/export.h>
+#include <linux/mutex.h>
+#include <linux/pci.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/delay.h>
+#include "psb_drv.h"
+
+#define HDMI_READ(reg)		readl(hdmi_dev->regs + (reg))
+#define HDMI_WRITE(reg, val)	writel(val, hdmi_dev->regs + (reg))
+
+#define HDMI_HCR	0x1000
+#define HCR_DETECT_HDP		(1 << 6)
+#define HCR_ENABLE_HDCP		(1 << 5)
+#define HCR_ENABLE_AUDIO	(1 << 2)
+#define HCR_ENABLE_PIXEL	(1 << 1)
+#define HCR_ENABLE_TMDS		(1 << 0)
+#define HDMI_HICR	0x1004
+#define HDMI_INTR_I2C_ERROR	(1 << 4)
+#define HDMI_INTR_I2C_FULL	(1 << 3)
+#define HDMI_INTR_I2C_DONE	(1 << 2)
+#define HDMI_INTR_HPD		(1 << 0)
+#define HDMI_HSR	0x1008
+#define HDMI_HISR	0x100C
+#define HDMI_HI2CRDB0	0x1200
+#define HDMI_HI2CHCR	0x1240
+#define HI2C_HDCP_WRITE		(0 << 2)
+#define HI2C_HDCP_RI_READ	(1 << 2)
+#define HI2C_HDCP_READ		(2 << 2)
+#define HI2C_EDID_READ		(3 << 2)
+#define HI2C_READ_CONTINUE	(1 << 1)
+#define HI2C_ENABLE_TRANSACTION	(1 << 0)
+
+#define HDMI_ICRH	0x1100
+#define HDMI_HI2CTDR0	0x1244
+#define HDMI_HI2CTDR1	0x1248
+
+#define I2C_STAT_INIT		0
+#define I2C_READ_DONE		1
+#define I2C_TRANSACTION_DONE	2
+
+struct hdmi_i2c_dev {
+	struct i2c_adapter *adap;
+	struct mutex i2c_lock;
+	struct completion complete;
+	int status;
+	struct i2c_msg *msg;
+	int buf_offset;
+};
+
+static void hdmi_i2c_irq_enable(struct oaktrail_hdmi_dev *hdmi_dev)
+{
+	u32 temp;
+
+	temp = HDMI_READ(HDMI_HICR);
+	temp |= (HDMI_INTR_I2C_ERROR | HDMI_INTR_I2C_FULL | HDMI_INTR_I2C_DONE);
+	HDMI_WRITE(HDMI_HICR, temp);
+	HDMI_READ(HDMI_HICR);
+}
+
+static void hdmi_i2c_irq_disable(struct oaktrail_hdmi_dev *hdmi_dev)
+{
+	HDMI_WRITE(HDMI_HICR, 0x0);
+	HDMI_READ(HDMI_HICR);
+}
+
+static int xfer_read(struct i2c_adapter *adap, struct i2c_msg *pmsg)
+{
+	struct oaktrail_hdmi_dev *hdmi_dev = i2c_get_adapdata(adap);
+	struct hdmi_i2c_dev *i2c_dev = hdmi_dev->i2c_dev;
+	u32 temp;
+
+	i2c_dev->status = I2C_STAT_INIT;
+	i2c_dev->msg = pmsg;
+	i2c_dev->buf_offset = 0;
+	INIT_COMPLETION(i2c_dev->complete);
+
+	/* Enable I2C transaction */
+	temp = ((pmsg->len) << 20) | HI2C_EDID_READ | HI2C_ENABLE_TRANSACTION;
+	HDMI_WRITE(HDMI_HI2CHCR, temp);
+	HDMI_READ(HDMI_HI2CHCR);
+
+	while (i2c_dev->status != I2C_TRANSACTION_DONE)
+		wait_for_completion_interruptible_timeout(&i2c_dev->complete,
+								10 * HZ);
+
+	return 0;
+}
+
+static int xfer_write(struct i2c_adapter *adap, struct i2c_msg *pmsg)
+{
+	/*
+	 * XXX: i2c write seems isn't useful for EDID probe, don't do anything
+	 */
+	return 0;
+}
+
+static int oaktrail_hdmi_i2c_access(struct i2c_adapter *adap,
+				struct i2c_msg *pmsg,
+				int num)
+{
+	struct oaktrail_hdmi_dev *hdmi_dev = i2c_get_adapdata(adap);
+	struct hdmi_i2c_dev *i2c_dev = hdmi_dev->i2c_dev;
+	int i, err = 0;
+
+	mutex_lock(&i2c_dev->i2c_lock);
+
+	/* Enable i2c unit */
+	HDMI_WRITE(HDMI_ICRH, 0x00008760);
+
+	/* Enable irq */
+	hdmi_i2c_irq_enable(hdmi_dev);
+	for (i = 0; i < num; i++) {
+		if (pmsg->len && pmsg->buf) {
+			if (pmsg->flags & I2C_M_RD)
+				err = xfer_read(adap, pmsg);
+			else
+				err = xfer_write(adap, pmsg);
+		}
+		pmsg++;         /* next message */
+	}
+
+	/* Disable irq */
+	hdmi_i2c_irq_disable(hdmi_dev);
+
+	mutex_unlock(&i2c_dev->i2c_lock);
+
+	return i;
+}
+
+static u32 oaktrail_hdmi_i2c_func(struct i2c_adapter *adapter)
+{
+	return I2C_FUNC_I2C | I2C_FUNC_10BIT_ADDR;
+}
+
+static const struct i2c_algorithm oaktrail_hdmi_i2c_algorithm = {
+	.master_xfer	= oaktrail_hdmi_i2c_access,
+	.functionality  = oaktrail_hdmi_i2c_func,
+};
+
+static struct i2c_adapter oaktrail_hdmi_i2c_adapter = {
+	.name		= "oaktrail_hdmi_i2c",
+	.nr		= 3,
+	.owner		= THIS_MODULE,
+	.class		= I2C_CLASS_DDC,
+	.algo		= &oaktrail_hdmi_i2c_algorithm,
+};
+
+static void hdmi_i2c_read(struct oaktrail_hdmi_dev *hdmi_dev)
+{
+	struct hdmi_i2c_dev *i2c_dev = hdmi_dev->i2c_dev;
+	struct i2c_msg *msg = i2c_dev->msg;
+	u8 *buf = msg->buf;
+	u32 temp;
+	int i, offset;
+
+	offset = i2c_dev->buf_offset;
+	for (i = 0; i < 0x10; i++) {
+		temp = HDMI_READ(HDMI_HI2CRDB0 + (i * 4));
+		memcpy(buf + (offset + i * 4), &temp, 4);
+	}
+	i2c_dev->buf_offset += (0x10 * 4);
+
+	/* clearing read buffer full intr */
+	temp = HDMI_READ(HDMI_HISR);
+	HDMI_WRITE(HDMI_HISR, temp | HDMI_INTR_I2C_FULL);
+	HDMI_READ(HDMI_HISR);
+
+	/* continue read transaction */
+	temp = HDMI_READ(HDMI_HI2CHCR);
+	HDMI_WRITE(HDMI_HI2CHCR, temp | HI2C_READ_CONTINUE);
+	HDMI_READ(HDMI_HI2CHCR);
+
+	i2c_dev->status = I2C_READ_DONE;
+	return;
+}
+
+static void hdmi_i2c_transaction_done(struct oaktrail_hdmi_dev *hdmi_dev)
+{
+	struct hdmi_i2c_dev *i2c_dev = hdmi_dev->i2c_dev;
+	u32 temp;
+
+	/* clear transaction done intr */
+	temp = HDMI_READ(HDMI_HISR);
+	HDMI_WRITE(HDMI_HISR, temp | HDMI_INTR_I2C_DONE);
+	HDMI_READ(HDMI_HISR);
+
+
+	temp = HDMI_READ(HDMI_HI2CHCR);
+	HDMI_WRITE(HDMI_HI2CHCR, temp & ~HI2C_ENABLE_TRANSACTION);
+	HDMI_READ(HDMI_HI2CHCR);
+
+	i2c_dev->status = I2C_TRANSACTION_DONE;
+	return;
+}
+
+static irqreturn_t oaktrail_hdmi_i2c_handler(int this_irq, void *dev)
+{
+	struct oaktrail_hdmi_dev *hdmi_dev = dev;
+	struct hdmi_i2c_dev *i2c_dev = hdmi_dev->i2c_dev;
+	u32 stat;
+
+	stat = HDMI_READ(HDMI_HISR);
+
+	if (stat & HDMI_INTR_HPD) {
+		HDMI_WRITE(HDMI_HISR, stat | HDMI_INTR_HPD);
+		HDMI_READ(HDMI_HISR);
+	}
+
+	if (stat & HDMI_INTR_I2C_FULL)
+		hdmi_i2c_read(hdmi_dev);
+
+	if (stat & HDMI_INTR_I2C_DONE)
+		hdmi_i2c_transaction_done(hdmi_dev);
+
+	complete(&i2c_dev->complete);
+
+	return IRQ_HANDLED;
+}
+
+/*
+ * choose alternate function 2 of GPIO pin 52, 53,
+ * which is used by HDMI I2C logic
+ */
+static void oaktrail_hdmi_i2c_gpio_fix(void)
+{
+	void *base;
+	unsigned int gpio_base = 0xff12c000;
+	int gpio_len = 0x1000;
+	u32 temp;
+
+	base = ioremap((resource_size_t)gpio_base, gpio_len);
+	if (base == NULL) {
+		DRM_ERROR("gpio ioremap fail\n");
+		return;
+	}
+
+	temp = readl(base + 0x44);
+	DRM_DEBUG_DRIVER("old gpio val %x\n", temp);
+	writel((temp | 0x00000a00), (base +  0x44));
+	temp = readl(base + 0x44);
+	DRM_DEBUG_DRIVER("new gpio val %x\n", temp);
+
+	iounmap(base);
+}
+
+int oaktrail_hdmi_i2c_init(struct pci_dev *dev)
+{
+	struct oaktrail_hdmi_dev *hdmi_dev;
+	struct hdmi_i2c_dev *i2c_dev;
+	int ret;
+
+	hdmi_dev = pci_get_drvdata(dev);
+
+	i2c_dev = kzalloc(sizeof(struct hdmi_i2c_dev), GFP_KERNEL);
+	if (i2c_dev == NULL) {
+		DRM_ERROR("Can't allocate interface\n");
+		ret = -ENOMEM;
+		goto exit;
+	}
+
+	i2c_dev->adap = &oaktrail_hdmi_i2c_adapter;
+	i2c_dev->status = I2C_STAT_INIT;
+	init_completion(&i2c_dev->complete);
+	mutex_init(&i2c_dev->i2c_lock);
+	i2c_set_adapdata(&oaktrail_hdmi_i2c_adapter, hdmi_dev);
+	hdmi_dev->i2c_dev = i2c_dev;
+
+	/* Enable HDMI I2C function on gpio */
+	oaktrail_hdmi_i2c_gpio_fix();
+
+	/* request irq */
+	ret = request_irq(dev->irq, oaktrail_hdmi_i2c_handler, IRQF_SHARED,
+			  oaktrail_hdmi_i2c_adapter.name, hdmi_dev);
+	if (ret) {
+		DRM_ERROR("Failed to request IRQ for I2C controller\n");
+		goto err;
+	}
+
+	/* Adapter registration */
+	ret = i2c_add_numbered_adapter(&oaktrail_hdmi_i2c_adapter);
+	return ret;
+
+err:
+	kfree(i2c_dev);
+exit:
+	return ret;
+}
+
+void oaktrail_hdmi_i2c_exit(struct pci_dev *dev)
+{
+	struct oaktrail_hdmi_dev *hdmi_dev;
+	struct hdmi_i2c_dev *i2c_dev;
+
+	hdmi_dev = pci_get_drvdata(dev);
+	if (i2c_del_adapter(&oaktrail_hdmi_i2c_adapter))
+		DRM_DEBUG_DRIVER("Failed to delete hdmi-i2c adapter\n");
+
+	i2c_dev = hdmi_dev->i2c_dev;
+	kfree(i2c_dev);
+	free_irq(dev->irq, hdmi_dev);
+}
diff --git a/drivers/gpu/drm/gma500/oaktrail_lvds.c b/drivers/gpu/drm/gma500/oaktrail_lvds.c
new file mode 100644
index 000000000000..238bbe105304
--- /dev/null
+++ b/drivers/gpu/drm/gma500/oaktrail_lvds.c
@@ -0,0 +1,449 @@
+/*
+ * Copyright © 2006-2009 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Authors:
+ *	Eric Anholt <eric@anholt.net>
+ *	Dave Airlie <airlied@linux.ie>
+ *	Jesse Barnes <jesse.barnes@intel.com>
+ */
+
+#include <linux/i2c.h>
+#include <drm/drmP.h>
+#include <asm/mrst.h>
+
+#include "intel_bios.h"
+#include "psb_drv.h"
+#include "psb_intel_drv.h"
+#include "psb_intel_reg.h"
+#include "power.h"
+#include <linux/pm_runtime.h>
+
+/* The max/min PWM frequency in BPCR[31:17] - */
+/* The smallest number is 1 (not 0) that can fit in the
+ * 15-bit field of the and then*/
+/* shifts to the left by one bit to get the actual 16-bit
+ * value that the 15-bits correspond to.*/
+#define MRST_BLC_MAX_PWM_REG_FREQ	    0xFFFF
+#define BRIGHTNESS_MAX_LEVEL 100
+
+/**
+ * Sets the power state for the panel.
+ */
+static void oaktrail_lvds_set_power(struct drm_device *dev,
+				struct psb_intel_encoder *psb_intel_encoder,
+				bool on)
+{
+	u32 pp_status;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+
+	if (!gma_power_begin(dev, true))
+		return;
+
+	if (on) {
+		REG_WRITE(PP_CONTROL, REG_READ(PP_CONTROL) |
+			  POWER_TARGET_ON);
+		do {
+			pp_status = REG_READ(PP_STATUS);
+		} while ((pp_status & (PP_ON | PP_READY)) == PP_READY);
+		dev_priv->is_lvds_on = true;
+		if (dev_priv->ops->lvds_bl_power)
+			dev_priv->ops->lvds_bl_power(dev, true);
+	} else {
+		if (dev_priv->ops->lvds_bl_power)
+			dev_priv->ops->lvds_bl_power(dev, false);
+		REG_WRITE(PP_CONTROL, REG_READ(PP_CONTROL) &
+			  ~POWER_TARGET_ON);
+		do {
+			pp_status = REG_READ(PP_STATUS);
+		} while (pp_status & PP_ON);
+		dev_priv->is_lvds_on = false;
+		pm_request_idle(&dev->pdev->dev);
+	}
+	gma_power_end(dev);
+}
+
+static void oaktrail_lvds_dpms(struct drm_encoder *encoder, int mode)
+{
+	struct drm_device *dev = encoder->dev;
+	struct psb_intel_encoder *psb_intel_encoder =
+						to_psb_intel_encoder(encoder);
+
+	if (mode == DRM_MODE_DPMS_ON)
+		oaktrail_lvds_set_power(dev, psb_intel_encoder, true);
+	else
+		oaktrail_lvds_set_power(dev, psb_intel_encoder, false);
+
+	/* XXX: We never power down the LVDS pairs. */
+}
+
+static void oaktrail_lvds_mode_set(struct drm_encoder *encoder,
+			       struct drm_display_mode *mode,
+			       struct drm_display_mode *adjusted_mode)
+{
+	struct drm_device *dev = encoder->dev;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct psb_intel_mode_device *mode_dev = &dev_priv->mode_dev;
+	struct drm_mode_config *mode_config = &dev->mode_config;
+	struct drm_connector *connector = NULL;
+	struct drm_crtc *crtc = encoder->crtc;
+	u32 lvds_port;
+	uint64_t v = DRM_MODE_SCALE_FULLSCREEN;
+
+	if (!gma_power_begin(dev, true))
+		return;
+
+	/*
+	 * The LVDS pin pair will already have been turned on in the
+	 * psb_intel_crtc_mode_set since it has a large impact on the DPLL
+	 * settings.
+	 */
+	lvds_port = (REG_READ(LVDS) &
+		    (~LVDS_PIPEB_SELECT)) |
+		    LVDS_PORT_EN |
+		    LVDS_BORDER_EN;
+
+	/* If the firmware says dither on Moorestown, or the BIOS does
+	   on Oaktrail then enable dithering */
+	if (mode_dev->panel_wants_dither || dev_priv->lvds_dither)
+		lvds_port |= MRST_PANEL_8TO6_DITHER_ENABLE;
+
+	REG_WRITE(LVDS, lvds_port);
+
+	/* Find the connector we're trying to set up */
+	list_for_each_entry(connector, &mode_config->connector_list, head) {
+		if (!connector->encoder || connector->encoder->crtc != crtc)
+			continue;
+	}
+
+	if (!connector) {
+		DRM_ERROR("Couldn't find connector when setting mode");
+		return;
+	}
+
+	drm_connector_property_get_value(
+		connector,
+		dev->mode_config.scaling_mode_property,
+		&v);
+
+	if (v == DRM_MODE_SCALE_NO_SCALE)
+		REG_WRITE(PFIT_CONTROL, 0);
+	else if (v == DRM_MODE_SCALE_ASPECT) {
+		if ((mode->vdisplay != adjusted_mode->crtc_vdisplay) ||
+		    (mode->hdisplay != adjusted_mode->crtc_hdisplay)) {
+			if ((adjusted_mode->crtc_hdisplay * mode->vdisplay) ==
+			    (mode->hdisplay * adjusted_mode->crtc_vdisplay))
+				REG_WRITE(PFIT_CONTROL, PFIT_ENABLE);
+			else if ((adjusted_mode->crtc_hdisplay *
+				mode->vdisplay) > (mode->hdisplay *
+				adjusted_mode->crtc_vdisplay))
+				REG_WRITE(PFIT_CONTROL, PFIT_ENABLE |
+					  PFIT_SCALING_MODE_PILLARBOX);
+			else
+				REG_WRITE(PFIT_CONTROL, PFIT_ENABLE |
+					  PFIT_SCALING_MODE_LETTERBOX);
+		} else
+			REG_WRITE(PFIT_CONTROL, PFIT_ENABLE);
+	} else /*(v == DRM_MODE_SCALE_FULLSCREEN)*/
+		REG_WRITE(PFIT_CONTROL, PFIT_ENABLE);
+
+	gma_power_end(dev);
+}
+
+static void oaktrail_lvds_prepare(struct drm_encoder *encoder)
+{
+	struct drm_device *dev = encoder->dev;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct psb_intel_encoder *psb_intel_encoder =
+						to_psb_intel_encoder(encoder);
+	struct psb_intel_mode_device *mode_dev = &dev_priv->mode_dev;
+
+	if (!gma_power_begin(dev, true))
+		return;
+
+	mode_dev->saveBLC_PWM_CTL = REG_READ(BLC_PWM_CTL);
+	mode_dev->backlight_duty_cycle = (mode_dev->saveBLC_PWM_CTL &
+					  BACKLIGHT_DUTY_CYCLE_MASK);
+	oaktrail_lvds_set_power(dev, psb_intel_encoder, false);
+	gma_power_end(dev);
+}
+
+static u32 oaktrail_lvds_get_max_backlight(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	u32 ret;
+
+	if (gma_power_begin(dev, false)) {
+		ret = ((REG_READ(BLC_PWM_CTL) &
+			  BACKLIGHT_MODULATION_FREQ_MASK) >>
+			  BACKLIGHT_MODULATION_FREQ_SHIFT) * 2;
+
+		gma_power_end(dev);
+	} else
+		ret = ((dev_priv->saveBLC_PWM_CTL &
+			  BACKLIGHT_MODULATION_FREQ_MASK) >>
+			  BACKLIGHT_MODULATION_FREQ_SHIFT) * 2;
+
+	return ret;
+}
+
+static void oaktrail_lvds_commit(struct drm_encoder *encoder)
+{
+	struct drm_device *dev = encoder->dev;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct psb_intel_encoder *psb_intel_encoder =
+						to_psb_intel_encoder(encoder);
+	struct psb_intel_mode_device *mode_dev = &dev_priv->mode_dev;
+
+	if (mode_dev->backlight_duty_cycle == 0)
+		mode_dev->backlight_duty_cycle =
+					oaktrail_lvds_get_max_backlight(dev);
+	oaktrail_lvds_set_power(dev, psb_intel_encoder, true);
+}
+
+static const struct drm_encoder_helper_funcs oaktrail_lvds_helper_funcs = {
+	.dpms = oaktrail_lvds_dpms,
+	.mode_fixup = psb_intel_lvds_mode_fixup,
+	.prepare = oaktrail_lvds_prepare,
+	.mode_set = oaktrail_lvds_mode_set,
+	.commit = oaktrail_lvds_commit,
+};
+
+static struct drm_display_mode lvds_configuration_modes[] = {
+	/* hard coded fixed mode for TPO LTPS LPJ040K001A */
+	{ DRM_MODE("800x480",  DRM_MODE_TYPE_DRIVER, 33264, 800, 836,
+		   846, 1056, 0, 480, 489, 491, 525, 0, 0) },
+	/* hard coded fixed mode for LVDS 800x480 */
+	{ DRM_MODE("800x480",  DRM_MODE_TYPE_DRIVER, 30994, 800, 801,
+		   802, 1024, 0, 480, 481, 482, 525, 0, 0) },
+	/* hard coded fixed mode for Samsung 480wsvga LVDS 1024x600@75 */
+	{ DRM_MODE("1024x600", DRM_MODE_TYPE_DRIVER, 53990, 1024, 1072,
+		   1104, 1184, 0, 600, 603, 604, 608, 0, 0) },
+	/* hard coded fixed mode for Samsung 480wsvga LVDS 1024x600@75 */
+	{ DRM_MODE("1024x600", DRM_MODE_TYPE_DRIVER, 53990, 1024, 1104,
+		   1136, 1184, 0, 600, 603, 604, 608, 0, 0) },
+	/* hard coded fixed mode for Sharp wsvga LVDS 1024x600 */
+	{ DRM_MODE("1024x600", DRM_MODE_TYPE_DRIVER, 48885, 1024, 1124,
+		   1204, 1312, 0, 600, 607, 610, 621, 0, 0) },
+	/* hard coded fixed mode for LVDS 1024x768 */
+	{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 65000, 1024, 1048,
+		   1184, 1344, 0, 768, 771, 777, 806, 0, 0) },
+	/* hard coded fixed mode for LVDS 1366x768 */
+	{ DRM_MODE("1366x768", DRM_MODE_TYPE_DRIVER, 77500, 1366, 1430,
+		   1558, 1664, 0, 768, 769, 770, 776, 0, 0) },
+};
+
+/* Returns the panel fixed mode from configuration. */
+
+static void oaktrail_lvds_get_configuration_mode(struct drm_device *dev,
+					struct psb_intel_mode_device *mode_dev)
+{
+	struct drm_display_mode *mode = NULL;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct oaktrail_timing_info *ti = &dev_priv->gct_data.DTD;
+
+	mode_dev->panel_fixed_mode = NULL;
+
+	/* Use the firmware provided data on Moorestown */
+	if (dev_priv->vbt_data.size != 0x00) { /*if non-zero, then use vbt*/
+		mode = kzalloc(sizeof(*mode), GFP_KERNEL);
+		if (!mode)
+			return;
+
+		mode->hdisplay = (ti->hactive_hi << 8) | ti->hactive_lo;
+		mode->vdisplay = (ti->vactive_hi << 8) | ti->vactive_lo;
+		mode->hsync_start = mode->hdisplay + \
+				((ti->hsync_offset_hi << 8) | \
+				ti->hsync_offset_lo);
+		mode->hsync_end = mode->hsync_start + \
+				((ti->hsync_pulse_width_hi << 8) | \
+				ti->hsync_pulse_width_lo);
+		mode->htotal = mode->hdisplay + ((ti->hblank_hi << 8) | \
+							ti->hblank_lo);
+		mode->vsync_start = \
+			mode->vdisplay + ((ti->vsync_offset_hi << 4) | \
+						ti->vsync_offset_lo);
+		mode->vsync_end = \
+			mode->vsync_start + ((ti->vsync_pulse_width_hi << 4) | \
+						ti->vsync_pulse_width_lo);
+		mode->vtotal = mode->vdisplay + \
+				((ti->vblank_hi << 8) | ti->vblank_lo);
+		mode->clock = ti->pixel_clock * 10;
+#if 0
+		printk(KERN_INFO "hdisplay is %d\n", mode->hdisplay);
+		printk(KERN_INFO "vdisplay is %d\n", mode->vdisplay);
+		printk(KERN_INFO "HSS is %d\n", mode->hsync_start);
+		printk(KERN_INFO "HSE is %d\n", mode->hsync_end);
+		printk(KERN_INFO "htotal is %d\n", mode->htotal);
+		printk(KERN_INFO "VSS is %d\n", mode->vsync_start);
+		printk(KERN_INFO "VSE is %d\n", mode->vsync_end);
+		printk(KERN_INFO "vtotal is %d\n", mode->vtotal);
+		printk(KERN_INFO "clock is %d\n", mode->clock);
+#endif
+		mode_dev->panel_fixed_mode = mode;
+	}
+
+	/* Use the BIOS VBT mode if available */
+	if (mode_dev->panel_fixed_mode == NULL && mode_dev->vbt_mode)
+		mode_dev->panel_fixed_mode = drm_mode_duplicate(dev,
+						mode_dev->vbt_mode);
+
+	/* Then try the LVDS VBT mode */
+	if (mode_dev->panel_fixed_mode == NULL)
+		if (dev_priv->lfp_lvds_vbt_mode)
+			mode_dev->panel_fixed_mode =
+				drm_mode_duplicate(dev,
+					dev_priv->lfp_lvds_vbt_mode);
+	/* Then guess */
+	if (mode_dev->panel_fixed_mode == NULL)
+		mode_dev->panel_fixed_mode
+			= drm_mode_duplicate(dev, &lvds_configuration_modes[2]);
+
+	drm_mode_set_name(mode_dev->panel_fixed_mode);
+	drm_mode_set_crtcinfo(mode_dev->panel_fixed_mode, 0);
+}
+
+/**
+ * oaktrail_lvds_init - setup LVDS connectors on this device
+ * @dev: drm device
+ *
+ * Create the connector, register the LVDS DDC bus, and try to figure out what
+ * modes we can display on the LVDS panel (if present).
+ */
+void oaktrail_lvds_init(struct drm_device *dev,
+		    struct psb_intel_mode_device *mode_dev)
+{
+	struct psb_intel_encoder *psb_intel_encoder;
+	struct psb_intel_connector *psb_intel_connector;
+	struct drm_connector *connector;
+	struct drm_encoder *encoder;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct edid *edid;
+	int ret = 0;
+	struct i2c_adapter *i2c_adap;
+	struct drm_display_mode *scan;	/* *modes, *bios_mode; */
+
+	psb_intel_encoder = kzalloc(sizeof(struct psb_intel_encoder), GFP_KERNEL);
+	if (!psb_intel_encoder)
+		return;
+
+	psb_intel_connector = kzalloc(sizeof(struct psb_intel_connector), GFP_KERNEL);
+	if (!psb_intel_connector)
+		goto failed_connector;
+
+	connector = &psb_intel_connector->base;
+	encoder = &psb_intel_encoder->base;
+	dev_priv->is_lvds_on = true;
+	drm_connector_init(dev, connector,
+			   &psb_intel_lvds_connector_funcs,
+			   DRM_MODE_CONNECTOR_LVDS);
+
+	drm_encoder_init(dev, encoder, &psb_intel_lvds_enc_funcs,
+			 DRM_MODE_ENCODER_LVDS);
+
+	psb_intel_connector_attach_encoder(psb_intel_connector,
+					   psb_intel_encoder);
+	psb_intel_encoder->type = INTEL_OUTPUT_LVDS;
+
+	drm_encoder_helper_add(encoder, &oaktrail_lvds_helper_funcs);
+	drm_connector_helper_add(connector,
+				 &psb_intel_lvds_connector_helper_funcs);
+	connector->display_info.subpixel_order = SubPixelHorizontalRGB;
+	connector->interlace_allowed = false;
+	connector->doublescan_allowed = false;
+
+	drm_connector_attach_property(connector,
+					dev->mode_config.scaling_mode_property,
+					DRM_MODE_SCALE_FULLSCREEN);
+	drm_connector_attach_property(connector,
+					dev_priv->backlight_property,
+					BRIGHTNESS_MAX_LEVEL);
+
+	mode_dev->panel_wants_dither = false;
+	if (dev_priv->vbt_data.size != 0x00)
+		mode_dev->panel_wants_dither = (dev_priv->gct_data.
+			Panel_Port_Control & MRST_PANEL_8TO6_DITHER_ENABLE);
+        if (dev_priv->lvds_dither)
+                mode_dev->panel_wants_dither = 1;
+
+	/*
+	 * LVDS discovery:
+	 * 1) check for EDID on DDC
+	 * 2) check for VBT data
+	 * 3) check to see if LVDS is already on
+	 *    if none of the above, no panel
+	 * 4) make sure lid is open
+	 *    if closed, act like it's not there for now
+	 */
+
+	i2c_adap = i2c_get_adapter(dev_priv->ops->i2c_bus);
+	if (i2c_adap == NULL)
+		dev_err(dev->dev, "No ddc adapter available!\n");
+	/*
+	 * Attempt to get the fixed panel mode from DDC.  Assume that the
+	 * preferred mode is the right one.
+	 */
+	if (i2c_adap) {
+		edid = drm_get_edid(connector, i2c_adap);
+		if (edid) {
+			drm_mode_connector_update_edid_property(connector,
+									edid);
+			ret = drm_add_edid_modes(connector, edid);
+			kfree(edid);
+		}
+
+		list_for_each_entry(scan, &connector->probed_modes, head) {
+			if (scan->type & DRM_MODE_TYPE_PREFERRED) {
+				mode_dev->panel_fixed_mode =
+				    drm_mode_duplicate(dev, scan);
+				goto out;	/* FIXME: check for quirks */
+			}
+		}
+	}
+	/*
+	 * If we didn't get EDID, try geting panel timing
+	 * from configuration data
+	 */
+	oaktrail_lvds_get_configuration_mode(dev, mode_dev);
+
+	if (mode_dev->panel_fixed_mode) {
+		mode_dev->panel_fixed_mode->type |= DRM_MODE_TYPE_PREFERRED;
+		goto out;	/* FIXME: check for quirks */
+	}
+
+	/* If we still don't have a mode after all that, give up. */
+	if (!mode_dev->panel_fixed_mode) {
+		dev_err(dev->dev, "Found no modes on the lvds, ignoring the LVDS\n");
+		goto failed_find;
+	}
+
+out:
+	drm_sysfs_connector_add(connector);
+	return;
+
+failed_find:
+	dev_dbg(dev->dev, "No LVDS modes found, disabling.\n");
+	if (psb_intel_encoder->ddc_bus)
+		psb_intel_i2c_destroy(psb_intel_encoder->ddc_bus);
+
+/* failed_ddc: */
+
+	drm_encoder_cleanup(encoder);
+	drm_connector_cleanup(connector);
+	kfree(psb_intel_connector);
+failed_connector:
+	kfree(psb_intel_encoder);
+}
+
diff --git a/drivers/gpu/drm/gma500/power.c b/drivers/gpu/drm/gma500/power.c
new file mode 100644
index 000000000000..94025693bae1
--- /dev/null
+++ b/drivers/gpu/drm/gma500/power.c
@@ -0,0 +1,316 @@
+/**************************************************************************
+ * Copyright (c) 2009-2011, Intel Corporation.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * Authors:
+ *    Benjamin Defnet <benjamin.r.defnet@intel.com>
+ *    Rajesh Poornachandran <rajesh.poornachandran@intel.com>
+ * Massively reworked
+ *    Alan Cox <alan@linux.intel.com>
+ */
+
+#include "power.h"
+#include "psb_drv.h"
+#include "psb_reg.h"
+#include "psb_intel_reg.h"
+#include <linux/mutex.h>
+#include <linux/pm_runtime.h>
+
+static struct mutex power_mutex;	/* Serialize power ops */
+static spinlock_t power_ctrl_lock;	/* Serialize power claim */
+
+/**
+ *	gma_power_init		-	initialise power manager
+ *	@dev: our device
+ *
+ *	Set up for power management tracking of our hardware.
+ */
+void gma_power_init(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+
+	/* FIXME: Move APM/OSPM base into relevant device code */
+	dev_priv->apm_base = dev_priv->apm_reg & 0xffff;
+	dev_priv->ospm_base &= 0xffff;
+
+	dev_priv->display_power = true;	/* We start active */
+	dev_priv->display_count = 0;	/* Currently no users */
+	dev_priv->suspended = false;	/* And not suspended */
+	spin_lock_init(&power_ctrl_lock);
+	mutex_init(&power_mutex);
+
+	dev_priv->ops->init_pm(dev);
+}
+
+/**
+ *	gma_power_uninit	-	end power manager
+ *	@dev: device to end for
+ *
+ *	Undo the effects of gma_power_init
+ */
+void gma_power_uninit(struct drm_device *dev)
+{
+	pm_runtime_disable(&dev->pdev->dev);
+	pm_runtime_set_suspended(&dev->pdev->dev);
+}
+
+/**
+ *	gma_suspend_display	-	suspend the display logic
+ *	@dev: our DRM device
+ *
+ *	Suspend the display logic of the graphics interface
+ */
+static void gma_suspend_display(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+
+	if (dev_priv->suspended)
+		return;
+	dev_priv->ops->save_regs(dev);
+	dev_priv->ops->power_down(dev);
+	dev_priv->display_power = false;
+}
+
+/**
+ *	gma_resume_display	-	resume display side logic
+ *
+ *	Resume the display hardware restoring state and enabling
+ *	as necessary.
+ */
+static void gma_resume_display(struct pci_dev *pdev)
+{
+	struct drm_device *dev = pci_get_drvdata(pdev);
+	struct drm_psb_private *dev_priv = dev->dev_private;
+
+	if (dev_priv->suspended == false)
+		return;
+
+	/* turn on the display power island */
+	dev_priv->ops->power_up(dev);
+	dev_priv->suspended = false;
+	dev_priv->display_power = true;
+
+	PSB_WVDC32(dev_priv->pge_ctl | _PSB_PGETBL_ENABLED, PSB_PGETBL_CTL);
+	pci_write_config_word(pdev, PSB_GMCH_CTRL,
+			dev_priv->gmch_ctrl | _PSB_GMCH_ENABLED);
+	dev_priv->ops->restore_regs(dev);
+}
+
+/**
+ *	gma_suspend_pci		-	suspend PCI side
+ *	@pdev: PCI device
+ *
+ *	Perform the suspend processing on our PCI device state
+ */
+static void gma_suspend_pci(struct pci_dev *pdev)
+{
+	struct drm_device *dev = pci_get_drvdata(pdev);
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	int bsm, vbt;
+
+	if (dev_priv->suspended)
+		return;
+
+	pci_save_state(pdev);
+	pci_read_config_dword(pdev, 0x5C, &bsm);
+	dev_priv->saveBSM = bsm;
+	pci_read_config_dword(pdev, 0xFC, &vbt);
+	dev_priv->saveVBT = vbt;
+	pci_read_config_dword(pdev, PSB_PCIx_MSI_ADDR_LOC, &dev_priv->msi_addr);
+	pci_read_config_dword(pdev, PSB_PCIx_MSI_DATA_LOC, &dev_priv->msi_data);
+
+	pci_disable_device(pdev);
+	pci_set_power_state(pdev, PCI_D3hot);
+
+	dev_priv->suspended = true;
+}
+
+/**
+ *	gma_resume_pci		-	resume helper
+ *	@dev: our PCI device
+ *
+ *	Perform the resume processing on our PCI device state - rewrite
+ *	register state and re-enable the PCI device
+ */
+static bool gma_resume_pci(struct pci_dev *pdev)
+{
+	struct drm_device *dev = pci_get_drvdata(pdev);
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	int ret;
+
+	if (!dev_priv->suspended)
+		return true;
+
+	pci_set_power_state(pdev, PCI_D0);
+	pci_restore_state(pdev);
+	pci_write_config_dword(pdev, 0x5c, dev_priv->saveBSM);
+	pci_write_config_dword(pdev, 0xFC, dev_priv->saveVBT);
+	/* restoring MSI address and data in PCIx space */
+	pci_write_config_dword(pdev, PSB_PCIx_MSI_ADDR_LOC, dev_priv->msi_addr);
+	pci_write_config_dword(pdev, PSB_PCIx_MSI_DATA_LOC, dev_priv->msi_data);
+	ret = pci_enable_device(pdev);
+
+	if (ret != 0)
+		dev_err(&pdev->dev, "pci_enable failed: %d\n", ret);
+	else
+		dev_priv->suspended = false;
+	return !dev_priv->suspended;
+}
+
+/**
+ *	gma_power_suspend		-	bus callback for suspend
+ *	@pdev: our PCI device
+ *	@state: suspend type
+ *
+ *	Called back by the PCI layer during a suspend of the system. We
+ *	perform the necessary shut down steps and save enough state that
+ *	we can undo this when resume is called.
+ */
+int gma_power_suspend(struct device *_dev)
+{
+	struct pci_dev *pdev = container_of(_dev, struct pci_dev, dev);
+	struct drm_device *dev = pci_get_drvdata(pdev);
+	struct drm_psb_private *dev_priv = dev->dev_private;
+
+	mutex_lock(&power_mutex);
+	if (!dev_priv->suspended) {
+		if (dev_priv->display_count) {
+			mutex_unlock(&power_mutex);
+			return -EBUSY;
+		}
+		psb_irq_uninstall(dev);
+		gma_suspend_display(dev);
+		gma_suspend_pci(pdev);
+	}
+	mutex_unlock(&power_mutex);
+	return 0;
+}
+
+/**
+ *	gma_power_resume		-	resume power
+ *	@pdev: PCI device
+ *
+ *	Resume the PCI side of the graphics and then the displays
+ */
+int gma_power_resume(struct device *_dev)
+{
+	struct pci_dev *pdev = container_of(_dev, struct pci_dev, dev);
+	struct drm_device *dev = pci_get_drvdata(pdev);
+
+	mutex_lock(&power_mutex);
+	gma_resume_pci(pdev);
+	gma_resume_display(pdev);
+	psb_irq_preinstall(dev);
+	psb_irq_postinstall(dev);
+	mutex_unlock(&power_mutex);
+	return 0;
+}
+
+/**
+ *	gma_power_is_on		-	returne true if power is on
+ *	@dev: our DRM device
+ *
+ *	Returns true if the display island power is on at this moment
+ */
+bool gma_power_is_on(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	return dev_priv->display_power;
+}
+
+/**
+ *	gma_power_begin		-	begin requiring power
+ *	@dev: our DRM device
+ *	@force_on: true to force power on
+ *
+ *	Begin an action that requires the display power island is enabled.
+ *	We refcount the islands.
+ */
+bool gma_power_begin(struct drm_device *dev, bool force_on)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	int ret;
+	unsigned long flags;
+
+	spin_lock_irqsave(&power_ctrl_lock, flags);
+	/* Power already on ? */
+	if (dev_priv->display_power) {
+		dev_priv->display_count++;
+		pm_runtime_get(&dev->pdev->dev);
+		spin_unlock_irqrestore(&power_ctrl_lock, flags);
+		return true;
+	}
+	if (force_on == false)
+		goto out_false;
+
+	/* Ok power up needed */
+	ret = gma_resume_pci(dev->pdev);
+	if (ret == 0) {
+		psb_irq_preinstall(dev);
+		psb_irq_postinstall(dev);
+		pm_runtime_get(&dev->pdev->dev);
+		dev_priv->display_count++;
+		spin_unlock_irqrestore(&power_ctrl_lock, flags);
+		return true;
+	}
+out_false:
+	spin_unlock_irqrestore(&power_ctrl_lock, flags);
+	return false;
+}
+
+/**
+ *	gma_power_end		-	end use of power
+ *	@dev: Our DRM device
+ *
+ *	Indicate that one of our gma_power_begin() requested periods when
+ *	the diplay island power is needed has completed.
+ */
+void gma_power_end(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	unsigned long flags;
+	spin_lock_irqsave(&power_ctrl_lock, flags);
+	dev_priv->display_count--;
+	WARN_ON(dev_priv->display_count < 0);
+	spin_unlock_irqrestore(&power_ctrl_lock, flags);
+	pm_runtime_put(&dev->pdev->dev);
+}
+
+int psb_runtime_suspend(struct device *dev)
+{
+	return gma_power_suspend(dev);
+}
+
+int psb_runtime_resume(struct device *dev)
+{
+	return gma_power_resume(dev);;
+}
+
+int psb_runtime_idle(struct device *dev)
+{
+	struct drm_device *drmdev = pci_get_drvdata(to_pci_dev(dev));
+	struct drm_psb_private *dev_priv = drmdev->dev_private;
+	if (dev_priv->display_count)
+		return 0;
+	else
+		return 1;
+}
diff --git a/drivers/gpu/drm/gma500/power.h b/drivers/gpu/drm/gma500/power.h
new file mode 100644
index 000000000000..1969d2ecb328
--- /dev/null
+++ b/drivers/gpu/drm/gma500/power.h
@@ -0,0 +1,67 @@
+/**************************************************************************
+ * Copyright (c) 2009-2011, Intel Corporation.
+ * All Rights Reserved.
+
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * Authors:
+ *    Benjamin Defnet <benjamin.r.defnet@intel.com>
+ *    Rajesh Poornachandran <rajesh.poornachandran@intel.com>
+ * Massively reworked
+ *    Alan Cox <alan@linux.intel.com>
+ */
+#ifndef _PSB_POWERMGMT_H_
+#define _PSB_POWERMGMT_H_
+
+#include <linux/pci.h>
+#include <drm/drmP.h>
+
+void gma_power_init(struct drm_device *dev);
+void gma_power_uninit(struct drm_device *dev);
+
+/*
+ * The kernel bus power management  will call these functions
+ */
+int gma_power_suspend(struct device *dev);
+int gma_power_resume(struct device *dev);
+
+/*
+ * These are the functions the driver should use to wrap all hw access
+ * (i.e. register reads and writes)
+ */
+bool gma_power_begin(struct drm_device *dev, bool force);
+void gma_power_end(struct drm_device *dev);
+
+/*
+ * Use this function to do an instantaneous check for if the hw is on.
+ * Only use this in cases where you know the mutex is already held such
+ * as in irq install/uninstall and you need to
+ * prevent a deadlock situation.  Otherwise use gma_power_begin().
+ */
+bool gma_power_is_on(struct drm_device *dev);
+
+/*
+ * GFX-Runtime PM callbacks
+ */
+int psb_runtime_suspend(struct device *dev);
+int psb_runtime_resume(struct device *dev);
+int psb_runtime_idle(struct device *dev);
+
+#endif /*_PSB_POWERMGMT_H_*/
diff --git a/drivers/gpu/drm/gma500/psb_device.c b/drivers/gpu/drm/gma500/psb_device.c
new file mode 100644
index 000000000000..e5f5906172b0
--- /dev/null
+++ b/drivers/gpu/drm/gma500/psb_device.c
@@ -0,0 +1,328 @@
+/**************************************************************************
+ * Copyright (c) 2011, Intel Corporation.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ **************************************************************************/
+
+#include <linux/backlight.h>
+#include <drm/drmP.h>
+#include <drm/drm.h>
+#include "gma_drm.h"
+#include "psb_drv.h"
+#include "psb_reg.h"
+#include "psb_intel_reg.h"
+#include "intel_bios.h"
+
+
+static int psb_output_init(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	psb_intel_lvds_init(dev, &dev_priv->mode_dev);
+	psb_intel_sdvo_init(dev, SDVOB);
+	return 0;
+}
+
+#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
+
+/*
+ *	Poulsbo Backlight Interfaces
+ */
+
+#define BLC_PWM_PRECISION_FACTOR 100	/* 10000000 */
+#define BLC_PWM_FREQ_CALC_CONSTANT 32
+#define MHz 1000000
+
+#define PSB_BLC_PWM_PRECISION_FACTOR    10
+#define PSB_BLC_MAX_PWM_REG_FREQ        0xFFFE
+#define PSB_BLC_MIN_PWM_REG_FREQ        0x2
+
+#define PSB_BACKLIGHT_PWM_POLARITY_BIT_CLEAR (0xFFFE)
+#define PSB_BACKLIGHT_PWM_CTL_SHIFT	(16)
+
+static int psb_brightness;
+static struct backlight_device *psb_backlight_device;
+
+static int psb_get_brightness(struct backlight_device *bd)
+{
+	/* return locally cached var instead of HW read (due to DPST etc.) */
+	/* FIXME: ideally return actual value in case firmware fiddled with
+	   it */
+	return psb_brightness;
+}
+
+
+static int psb_backlight_setup(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	unsigned long core_clock;
+	/* u32 bl_max_freq; */
+	/* unsigned long value; */
+	u16 bl_max_freq;
+	uint32_t value;
+	uint32_t blc_pwm_precision_factor;
+
+	/* get bl_max_freq and pol from dev_priv*/
+	if (!dev_priv->lvds_bl) {
+		dev_err(dev->dev, "Has no valid LVDS backlight info\n");
+		return -ENOENT;
+	}
+	bl_max_freq = dev_priv->lvds_bl->freq;
+	blc_pwm_precision_factor = PSB_BLC_PWM_PRECISION_FACTOR;
+
+	core_clock = dev_priv->core_freq;
+
+	value = (core_clock * MHz) / BLC_PWM_FREQ_CALC_CONSTANT;
+	value *= blc_pwm_precision_factor;
+	value /= bl_max_freq;
+	value /= blc_pwm_precision_factor;
+
+	if (value > (unsigned long long)PSB_BLC_MAX_PWM_REG_FREQ ||
+		 value < (unsigned long long)PSB_BLC_MIN_PWM_REG_FREQ)
+				return -ERANGE;
+	else {
+		value &= PSB_BACKLIGHT_PWM_POLARITY_BIT_CLEAR;
+		REG_WRITE(BLC_PWM_CTL,
+			(value << PSB_BACKLIGHT_PWM_CTL_SHIFT) | (value));
+	}
+	return 0;
+}
+
+static int psb_set_brightness(struct backlight_device *bd)
+{
+	struct drm_device *dev = bl_get_data(psb_backlight_device);
+	int level = bd->props.brightness;
+
+	/* Percentage 1-100% being valid */
+	if (level < 1)
+		level = 1;
+
+	psb_intel_lvds_set_brightness(dev, level);
+	psb_brightness = level;
+	return 0;
+}
+
+static const struct backlight_ops psb_ops = {
+	.get_brightness = psb_get_brightness,
+	.update_status  = psb_set_brightness,
+};
+
+static int psb_backlight_init(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	int ret;
+	struct backlight_properties props;
+
+	memset(&props, 0, sizeof(struct backlight_properties));
+	props.max_brightness = 100;
+	props.type = BACKLIGHT_PLATFORM;
+
+	psb_backlight_device = backlight_device_register("psb-bl",
+					NULL, (void *)dev, &psb_ops, &props);
+	if (IS_ERR(psb_backlight_device))
+		return PTR_ERR(psb_backlight_device);
+
+	ret = psb_backlight_setup(dev);
+	if (ret < 0) {
+		backlight_device_unregister(psb_backlight_device);
+		psb_backlight_device = NULL;
+		return ret;
+	}
+	psb_backlight_device->props.brightness = 100;
+	psb_backlight_device->props.max_brightness = 100;
+	backlight_update_status(psb_backlight_device);
+	dev_priv->backlight_device = psb_backlight_device;
+	return 0;
+}
+
+#endif
+
+/*
+ *	Provide the Poulsbo specific chip logic and low level methods
+ *	for power management
+ */
+
+static void psb_init_pm(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+
+	u32 gating = PSB_RSGX32(PSB_CR_CLKGATECTL);
+	gating &= ~3;	/* Disable 2D clock gating */
+	gating |= 1;
+	PSB_WSGX32(gating, PSB_CR_CLKGATECTL);
+	PSB_RSGX32(PSB_CR_CLKGATECTL);
+}
+
+/**
+ *	psb_save_display_registers	-	save registers lost on suspend
+ *	@dev: our DRM device
+ *
+ *	Save the state we need in order to be able to restore the interface
+ *	upon resume from suspend
+ */
+static int psb_save_display_registers(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct drm_crtc *crtc;
+	struct drm_connector *connector;
+
+	/* Display arbitration control + watermarks */
+	dev_priv->saveDSPARB = PSB_RVDC32(DSPARB);
+	dev_priv->saveDSPFW1 = PSB_RVDC32(DSPFW1);
+	dev_priv->saveDSPFW2 = PSB_RVDC32(DSPFW2);
+	dev_priv->saveDSPFW3 = PSB_RVDC32(DSPFW3);
+	dev_priv->saveDSPFW4 = PSB_RVDC32(DSPFW4);
+	dev_priv->saveDSPFW5 = PSB_RVDC32(DSPFW5);
+	dev_priv->saveDSPFW6 = PSB_RVDC32(DSPFW6);
+	dev_priv->saveCHICKENBIT = PSB_RVDC32(DSPCHICKENBIT);
+
+	/* Save crtc and output state */
+	mutex_lock(&dev->mode_config.mutex);
+	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+		if (drm_helper_crtc_in_use(crtc))
+			crtc->funcs->save(crtc);
+	}
+
+	list_for_each_entry(connector, &dev->mode_config.connector_list, head)
+		connector->funcs->save(connector);
+
+	mutex_unlock(&dev->mode_config.mutex);
+	return 0;
+}
+
+/**
+ *	psb_restore_display_registers	-	restore lost register state
+ *	@dev: our DRM device
+ *
+ *	Restore register state that was lost during suspend and resume.
+ */
+static int psb_restore_display_registers(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct drm_crtc *crtc;
+	struct drm_connector *connector;
+
+	/* Display arbitration + watermarks */
+	PSB_WVDC32(dev_priv->saveDSPARB, DSPARB);
+	PSB_WVDC32(dev_priv->saveDSPFW1, DSPFW1);
+	PSB_WVDC32(dev_priv->saveDSPFW2, DSPFW2);
+	PSB_WVDC32(dev_priv->saveDSPFW3, DSPFW3);
+	PSB_WVDC32(dev_priv->saveDSPFW4, DSPFW4);
+	PSB_WVDC32(dev_priv->saveDSPFW5, DSPFW5);
+	PSB_WVDC32(dev_priv->saveDSPFW6, DSPFW6);
+	PSB_WVDC32(dev_priv->saveCHICKENBIT, DSPCHICKENBIT);
+
+	/*make sure VGA plane is off. it initializes to on after reset!*/
+	PSB_WVDC32(0x80000000, VGACNTRL);
+
+	mutex_lock(&dev->mode_config.mutex);
+	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head)
+		if (drm_helper_crtc_in_use(crtc))
+			crtc->funcs->restore(crtc);
+
+	list_for_each_entry(connector, &dev->mode_config.connector_list, head)
+		connector->funcs->restore(connector);
+
+	mutex_unlock(&dev->mode_config.mutex);
+	return 0;
+}
+
+static int psb_power_down(struct drm_device *dev)
+{
+	return 0;
+}
+
+static int psb_power_up(struct drm_device *dev)
+{
+	return 0;
+}
+
+static void psb_get_core_freq(struct drm_device *dev)
+{
+	uint32_t clock;
+	struct pci_dev *pci_root = pci_get_bus_and_slot(0, 0);
+	struct drm_psb_private *dev_priv = dev->dev_private;
+
+	/*pci_write_config_dword(pci_root, 0xD4, 0x00C32004);*/
+	/*pci_write_config_dword(pci_root, 0xD0, 0xE0033000);*/
+
+	pci_write_config_dword(pci_root, 0xD0, 0xD0050300);
+	pci_read_config_dword(pci_root, 0xD4, &clock);
+	pci_dev_put(pci_root);
+
+	switch (clock & 0x07) {
+	case 0:
+		dev_priv->core_freq = 100;
+		break;
+	case 1:
+		dev_priv->core_freq = 133;
+		break;
+	case 2:
+		dev_priv->core_freq = 150;
+		break;
+	case 3:
+		dev_priv->core_freq = 178;
+		break;
+	case 4:
+		dev_priv->core_freq = 200;
+		break;
+	case 5:
+	case 6:
+	case 7:
+		dev_priv->core_freq = 266;
+	default:
+		dev_priv->core_freq = 0;
+	}
+}
+
+static int psb_chip_setup(struct drm_device *dev)
+{
+	psb_get_core_freq(dev);
+	gma_intel_setup_gmbus(dev);
+	gma_intel_opregion_init(dev);
+	psb_intel_init_bios(dev);
+	return 0;
+}
+
+static void psb_chip_teardown(struct drm_device *dev)
+{
+	gma_intel_teardown_gmbus(dev);
+}
+
+const struct psb_ops psb_chip_ops = {
+	.name = "Poulsbo",
+	.accel_2d = 1,
+	.pipes = 2,
+	.crtcs = 2,
+	.sgx_offset = PSB_SGX_OFFSET,
+	.chip_setup = psb_chip_setup,
+	.chip_teardown = psb_chip_teardown,
+
+	.crtc_helper = &psb_intel_helper_funcs,
+	.crtc_funcs = &psb_intel_crtc_funcs,
+
+	.output_init = psb_output_init,
+
+#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
+	.backlight_init = psb_backlight_init,
+#endif
+
+	.init_pm = psb_init_pm,
+	.save_regs = psb_save_display_registers,
+	.restore_regs = psb_restore_display_registers,
+	.power_down = psb_power_down,
+	.power_up = psb_power_up,
+};
+
diff --git a/drivers/gpu/drm/gma500/psb_drv.c b/drivers/gpu/drm/gma500/psb_drv.c
new file mode 100644
index 000000000000..f14768f2b364
--- /dev/null
+++ b/drivers/gpu/drm/gma500/psb_drv.c
@@ -0,0 +1,703 @@
+/**************************************************************************
+ * Copyright (c) 2007-2011, Intel Corporation.
+ * All Rights Reserved.
+ * Copyright (c) 2008, Tungsten Graphics, Inc. Cedar Park, TX., USA.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ **************************************************************************/
+
+#include <drm/drmP.h>
+#include <drm/drm.h>
+#include "gma_drm.h"
+#include "psb_drv.h"
+#include "framebuffer.h"
+#include "psb_reg.h"
+#include "psb_intel_reg.h"
+#include "intel_bios.h"
+#include "mid_bios.h"
+#include <drm/drm_pciids.h>
+#include "power.h"
+#include <linux/cpu.h>
+#include <linux/notifier.h>
+#include <linux/spinlock.h>
+#include <linux/pm_runtime.h>
+#include <acpi/video.h>
+#include <linux/module.h>
+
+static int drm_psb_trap_pagefaults;
+
+static int psb_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
+
+MODULE_PARM_DESC(trap_pagefaults, "Error and reset on MMU pagefaults");
+module_param_named(trap_pagefaults, drm_psb_trap_pagefaults, int, 0600);
+
+
+static DEFINE_PCI_DEVICE_TABLE(pciidlist) = {
+	{ 0x8086, 0x8108, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &psb_chip_ops },
+	{ 0x8086, 0x8109, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &psb_chip_ops },
+#if defined(CONFIG_DRM_GMA600)
+	{ 0x8086, 0x4100, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops},
+	{ 0x8086, 0x4101, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops},
+	{ 0x8086, 0x4102, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops},
+	{ 0x8086, 0x4103, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops},
+	{ 0x8086, 0x4104, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops},
+	{ 0x8086, 0x4105, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops},
+	{ 0x8086, 0x4106, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops},
+	{ 0x8086, 0x4107, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops},
+	/* Atom E620 */
+	{ 0x8086, 0x4108, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &oaktrail_chip_ops},
+#endif
+#if defined(CONFIG_DRM_GMA3600)
+	{ 0x8086, 0x0be0, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops},
+	{ 0x8086, 0x0be1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops},
+	{ 0x8086, 0x0be2, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops},
+	{ 0x8086, 0x0be3, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops},
+	{ 0x8086, 0x0be4, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops},
+	{ 0x8086, 0x0be5, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops},
+	{ 0x8086, 0x0be6, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops},
+	{ 0x8086, 0x0be7, PCI_ANY_ID, PCI_ANY_ID, 0, 0, (long) &cdv_chip_ops},
+#endif
+	{ 0, 0, 0}
+};
+MODULE_DEVICE_TABLE(pci, pciidlist);
+
+/*
+ * Standard IOCTLs.
+ */
+
+#define DRM_IOCTL_PSB_ADB	\
+		DRM_IOWR(DRM_GMA_ADB + DRM_COMMAND_BASE, uint32_t)
+#define DRM_IOCTL_PSB_MODE_OPERATION	\
+		DRM_IOWR(DRM_GMA_MODE_OPERATION + DRM_COMMAND_BASE, \
+			 struct drm_psb_mode_operation_arg)
+#define DRM_IOCTL_PSB_STOLEN_MEMORY	\
+		DRM_IOWR(DRM_GMA_STOLEN_MEMORY + DRM_COMMAND_BASE, \
+			 struct drm_psb_stolen_memory_arg)
+#define DRM_IOCTL_PSB_GAMMA	\
+		DRM_IOWR(DRM_GMA_GAMMA + DRM_COMMAND_BASE, \
+			 struct drm_psb_dpst_lut_arg)
+#define DRM_IOCTL_PSB_DPST_BL	\
+		DRM_IOWR(DRM_GMA_DPST_BL + DRM_COMMAND_BASE, \
+			 uint32_t)
+#define DRM_IOCTL_PSB_GET_PIPE_FROM_CRTC_ID	\
+		DRM_IOWR(DRM_GMA_GET_PIPE_FROM_CRTC_ID + DRM_COMMAND_BASE, \
+			 struct drm_psb_get_pipe_from_crtc_id_arg)
+#define DRM_IOCTL_PSB_GEM_CREATE	\
+		DRM_IOWR(DRM_GMA_GEM_CREATE + DRM_COMMAND_BASE, \
+			 struct drm_psb_gem_create)
+#define DRM_IOCTL_PSB_GEM_MMAP	\
+		DRM_IOWR(DRM_GMA_GEM_MMAP + DRM_COMMAND_BASE, \
+			 struct drm_psb_gem_mmap)
+
+static int psb_adb_ioctl(struct drm_device *dev, void *data,
+			 struct drm_file *file_priv);
+static int psb_mode_operation_ioctl(struct drm_device *dev, void *data,
+				    struct drm_file *file_priv);
+static int psb_stolen_memory_ioctl(struct drm_device *dev, void *data,
+				   struct drm_file *file_priv);
+static int psb_gamma_ioctl(struct drm_device *dev, void *data,
+			   struct drm_file *file_priv);
+static int psb_dpst_bl_ioctl(struct drm_device *dev, void *data,
+			     struct drm_file *file_priv);
+
+#define PSB_IOCTL_DEF(ioctl, func, flags) \
+	[DRM_IOCTL_NR(ioctl) - DRM_COMMAND_BASE] = {ioctl, flags, func}
+
+static struct drm_ioctl_desc psb_ioctls[] = {
+	PSB_IOCTL_DEF(DRM_IOCTL_PSB_ADB, psb_adb_ioctl, DRM_AUTH),
+	PSB_IOCTL_DEF(DRM_IOCTL_PSB_MODE_OPERATION, psb_mode_operation_ioctl,
+		      DRM_AUTH),
+	PSB_IOCTL_DEF(DRM_IOCTL_PSB_STOLEN_MEMORY, psb_stolen_memory_ioctl,
+		      DRM_AUTH),
+	PSB_IOCTL_DEF(DRM_IOCTL_PSB_GAMMA, psb_gamma_ioctl, DRM_AUTH),
+	PSB_IOCTL_DEF(DRM_IOCTL_PSB_DPST_BL, psb_dpst_bl_ioctl, DRM_AUTH),
+	PSB_IOCTL_DEF(DRM_IOCTL_PSB_GET_PIPE_FROM_CRTC_ID,
+					psb_intel_get_pipe_from_crtc_id, 0),
+	PSB_IOCTL_DEF(DRM_IOCTL_PSB_GEM_CREATE, psb_gem_create_ioctl,
+						DRM_UNLOCKED | DRM_AUTH),
+	PSB_IOCTL_DEF(DRM_IOCTL_PSB_GEM_MMAP, psb_gem_mmap_ioctl,
+						DRM_UNLOCKED | DRM_AUTH),
+};
+
+static void psb_lastclose(struct drm_device *dev)
+{
+	return;
+}
+
+static void psb_do_takedown(struct drm_device *dev)
+{
+}
+
+static int psb_do_init(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct psb_gtt *pg = &dev_priv->gtt;
+
+	uint32_t stolen_gtt;
+
+	int ret = -ENOMEM;
+
+	if (pg->mmu_gatt_start & 0x0FFFFFFF) {
+		dev_err(dev->dev, "Gatt must be 256M aligned. This is a bug.\n");
+		ret = -EINVAL;
+		goto out_err;
+	}
+
+
+	stolen_gtt = (pg->stolen_size >> PAGE_SHIFT) * 4;
+	stolen_gtt = (stolen_gtt + PAGE_SIZE - 1) >> PAGE_SHIFT;
+	stolen_gtt =
+	    (stolen_gtt < pg->gtt_pages) ? stolen_gtt : pg->gtt_pages;
+
+	dev_priv->gatt_free_offset = pg->mmu_gatt_start +
+	    (stolen_gtt << PAGE_SHIFT) * 1024;
+
+	if (1 || drm_debug) {
+		uint32_t core_id = PSB_RSGX32(PSB_CR_CORE_ID);
+		uint32_t core_rev = PSB_RSGX32(PSB_CR_CORE_REVISION);
+		DRM_INFO("SGX core id = 0x%08x\n", core_id);
+		DRM_INFO("SGX core rev major = 0x%02x, minor = 0x%02x\n",
+			 (core_rev & _PSB_CC_REVISION_MAJOR_MASK) >>
+			 _PSB_CC_REVISION_MAJOR_SHIFT,
+			 (core_rev & _PSB_CC_REVISION_MINOR_MASK) >>
+			 _PSB_CC_REVISION_MINOR_SHIFT);
+		DRM_INFO
+		    ("SGX core rev maintenance = 0x%02x, designer = 0x%02x\n",
+		     (core_rev & _PSB_CC_REVISION_MAINTENANCE_MASK) >>
+		     _PSB_CC_REVISION_MAINTENANCE_SHIFT,
+		     (core_rev & _PSB_CC_REVISION_DESIGNER_MASK) >>
+		     _PSB_CC_REVISION_DESIGNER_SHIFT);
+	}
+
+
+	spin_lock_init(&dev_priv->irqmask_lock);
+	spin_lock_init(&dev_priv->lock_2d);
+
+	PSB_WSGX32(0x00000000, PSB_CR_BIF_BANK0);
+	PSB_WSGX32(0x00000000, PSB_CR_BIF_BANK1);
+	PSB_RSGX32(PSB_CR_BIF_BANK1);
+	PSB_WSGX32(PSB_RSGX32(PSB_CR_BIF_CTRL) | _PSB_MMU_ER_MASK,
+							PSB_CR_BIF_CTRL);
+	psb_spank(dev_priv);
+
+	/* mmu_gatt ?? */
+	PSB_WSGX32(pg->gatt_start, PSB_CR_BIF_TWOD_REQ_BASE);
+	return 0;
+out_err:
+	psb_do_takedown(dev);
+	return ret;
+}
+
+static int psb_driver_unload(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+
+	/* Kill vblank etc here */
+
+	gma_backlight_exit(dev);
+
+	psb_modeset_cleanup(dev);
+
+	if (dev_priv) {
+		psb_lid_timer_takedown(dev_priv);
+		gma_intel_opregion_exit(dev);
+
+		if (dev_priv->ops->chip_teardown)
+			dev_priv->ops->chip_teardown(dev);
+		psb_do_takedown(dev);
+
+
+		if (dev_priv->pf_pd) {
+			psb_mmu_free_pagedir(dev_priv->pf_pd);
+			dev_priv->pf_pd = NULL;
+		}
+		if (dev_priv->mmu) {
+			struct psb_gtt *pg = &dev_priv->gtt;
+
+			down_read(&pg->sem);
+			psb_mmu_remove_pfn_sequence(
+				psb_mmu_get_default_pd
+				(dev_priv->mmu),
+				pg->mmu_gatt_start,
+				dev_priv->vram_stolen_size >> PAGE_SHIFT);
+			up_read(&pg->sem);
+			psb_mmu_driver_takedown(dev_priv->mmu);
+			dev_priv->mmu = NULL;
+		}
+		psb_gtt_takedown(dev);
+		if (dev_priv->scratch_page) {
+			__free_page(dev_priv->scratch_page);
+			dev_priv->scratch_page = NULL;
+		}
+		if (dev_priv->vdc_reg) {
+			iounmap(dev_priv->vdc_reg);
+			dev_priv->vdc_reg = NULL;
+		}
+		if (dev_priv->sgx_reg) {
+			iounmap(dev_priv->sgx_reg);
+			dev_priv->sgx_reg = NULL;
+		}
+
+		kfree(dev_priv);
+		dev->dev_private = NULL;
+
+		/*destroy VBT data*/
+		psb_intel_destroy_bios(dev);
+	}
+
+	gma_power_uninit(dev);
+
+	return 0;
+}
+
+
+static int psb_driver_load(struct drm_device *dev, unsigned long chipset)
+{
+	struct drm_psb_private *dev_priv;
+	unsigned long resource_start;
+	struct psb_gtt *pg;
+	unsigned long irqflags;
+	int ret = -ENOMEM;
+	uint32_t tt_pages;
+	struct drm_connector *connector;
+	struct psb_intel_encoder *psb_intel_encoder;
+
+	dev_priv = kzalloc(sizeof(*dev_priv), GFP_KERNEL);
+	if (dev_priv == NULL)
+		return -ENOMEM;
+
+	dev_priv->ops = (struct psb_ops *)chipset;
+	dev_priv->dev = dev;
+	dev->dev_private = (void *) dev_priv;
+
+	if (!IS_PSB(dev)) {
+		if (pci_enable_msi(dev->pdev))
+			dev_warn(dev->dev, "Enabling MSI failed!\n");
+	}
+
+	dev_priv->num_pipe = dev_priv->ops->pipes;
+
+	resource_start = pci_resource_start(dev->pdev, PSB_MMIO_RESOURCE);
+
+	dev_priv->vdc_reg =
+	    ioremap(resource_start + PSB_VDC_OFFSET, PSB_VDC_SIZE);
+	if (!dev_priv->vdc_reg)
+		goto out_err;
+
+	dev_priv->sgx_reg = ioremap(resource_start + dev_priv->ops->sgx_offset,
+							PSB_SGX_SIZE);
+	if (!dev_priv->sgx_reg)
+		goto out_err;
+
+	ret = dev_priv->ops->chip_setup(dev);
+	if (ret)
+		goto out_err;
+
+	/* Init OSPM support */
+	gma_power_init(dev);
+
+	ret = -ENOMEM;
+
+	dev_priv->scratch_page = alloc_page(GFP_DMA32 | __GFP_ZERO);
+	if (!dev_priv->scratch_page)
+		goto out_err;
+
+	set_pages_uc(dev_priv->scratch_page, 1);
+
+	ret = psb_gtt_init(dev, 0);
+	if (ret)
+		goto out_err;
+
+	dev_priv->mmu = psb_mmu_driver_init((void *)0,
+					drm_psb_trap_pagefaults, 0,
+					dev_priv);
+	if (!dev_priv->mmu)
+		goto out_err;
+
+	pg = &dev_priv->gtt;
+
+	tt_pages = (pg->gatt_pages < PSB_TT_PRIV0_PLIMIT) ?
+		(pg->gatt_pages) : PSB_TT_PRIV0_PLIMIT;
+
+
+	dev_priv->pf_pd = psb_mmu_alloc_pd(dev_priv->mmu, 1, 0);
+	if (!dev_priv->pf_pd)
+		goto out_err;
+
+	psb_mmu_set_pd_context(psb_mmu_get_default_pd(dev_priv->mmu), 0);
+	psb_mmu_set_pd_context(dev_priv->pf_pd, 1);
+
+	ret = psb_do_init(dev);
+	if (ret)
+		return ret;
+
+	PSB_WSGX32(0x20000000, PSB_CR_PDS_EXEC_BASE);
+	PSB_WSGX32(0x30000000, PSB_CR_BIF_3D_REQ_BASE);
+
+/*	igd_opregion_init(&dev_priv->opregion_dev); */
+	acpi_video_register();
+	if (dev_priv->lid_state)
+		psb_lid_timer_init(dev_priv);
+
+	ret = drm_vblank_init(dev, dev_priv->num_pipe);
+	if (ret)
+		goto out_err;
+
+	/*
+	 * Install interrupt handlers prior to powering off SGX or else we will
+	 * crash.
+	 */
+	dev_priv->vdc_irq_mask = 0;
+	dev_priv->pipestat[0] = 0;
+	dev_priv->pipestat[1] = 0;
+	dev_priv->pipestat[2] = 0;
+	spin_lock_irqsave(&dev_priv->irqmask_lock, irqflags);
+	PSB_WVDC32(0xFFFFFFFF, PSB_HWSTAM);
+	PSB_WVDC32(0x00000000, PSB_INT_ENABLE_R);
+	PSB_WVDC32(0xFFFFFFFF, PSB_INT_MASK_R);
+	spin_unlock_irqrestore(&dev_priv->irqmask_lock, irqflags);
+	if (IS_PSB(dev) && drm_core_check_feature(dev, DRIVER_MODESET))
+		drm_irq_install(dev);
+
+	dev->vblank_disable_allowed = 1;
+
+	dev->max_vblank_count = 0xffffff; /* only 24 bits of frame count */
+
+	dev->driver->get_vblank_counter = psb_get_vblank_counter;
+
+	psb_modeset_init(dev);
+	psb_fbdev_init(dev);
+	drm_kms_helper_poll_init(dev);
+
+	/* Only add backlight support if we have LVDS output */
+	list_for_each_entry(connector, &dev->mode_config.connector_list,
+			    head) {
+		psb_intel_encoder = psb_intel_attached_encoder(connector);
+
+		switch (psb_intel_encoder->type) {
+		case INTEL_OUTPUT_LVDS:
+		case INTEL_OUTPUT_MIPI:
+			ret = gma_backlight_init(dev);
+			break;
+		}
+	}
+
+	if (ret)
+		return ret;
+#if 0
+	/*enable runtime pm at last*/
+	pm_runtime_enable(&dev->pdev->dev);
+	pm_runtime_set_active(&dev->pdev->dev);
+#endif
+	/*Intel drm driver load is done, continue doing pvr load*/
+	return 0;
+out_err:
+	psb_driver_unload(dev);
+	return ret;
+}
+
+int psb_driver_device_is_agp(struct drm_device *dev)
+{
+	return 0;
+}
+
+static inline void get_brightness(struct backlight_device *bd)
+{
+#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
+	if (bd) {
+		bd->props.brightness = bd->ops->get_brightness(bd);
+		backlight_update_status(bd);
+	}
+#endif
+}
+
+static int psb_dpst_bl_ioctl(struct drm_device *dev, void *data,
+		       struct drm_file *file_priv)
+{
+	struct drm_psb_private *dev_priv = psb_priv(dev);
+	uint32_t *arg = data;
+
+	dev_priv->blc_adj2 = *arg;
+	get_brightness(dev_priv->backlight_device);
+	return 0;
+}
+
+static int psb_adb_ioctl(struct drm_device *dev, void *data,
+			struct drm_file *file_priv)
+{
+	struct drm_psb_private *dev_priv = psb_priv(dev);
+	uint32_t *arg = data;
+
+	dev_priv->blc_adj1 = *arg;
+	get_brightness(dev_priv->backlight_device);
+	return 0;
+}
+
+static int psb_gamma_ioctl(struct drm_device *dev, void *data,
+			   struct drm_file *file_priv)
+{
+	struct drm_psb_dpst_lut_arg *lut_arg = data;
+	struct drm_mode_object *obj;
+	struct drm_crtc *crtc;
+	struct drm_connector *connector;
+	struct psb_intel_crtc *psb_intel_crtc;
+	int i = 0;
+	int32_t obj_id;
+
+	obj_id = lut_arg->output_id;
+	obj = drm_mode_object_find(dev, obj_id, DRM_MODE_OBJECT_CONNECTOR);
+	if (!obj) {
+		dev_dbg(dev->dev, "Invalid Connector object.\n");
+		return -EINVAL;
+	}
+
+	connector = obj_to_connector(obj);
+	crtc = connector->encoder->crtc;
+	psb_intel_crtc = to_psb_intel_crtc(crtc);
+
+	for (i = 0; i < 256; i++)
+		psb_intel_crtc->lut_adj[i] = lut_arg->lut[i];
+
+	psb_intel_crtc_load_lut(crtc);
+
+	return 0;
+}
+
+static int psb_mode_operation_ioctl(struct drm_device *dev, void *data,
+				struct drm_file *file_priv)
+{
+	uint32_t obj_id;
+	uint16_t op;
+	struct drm_mode_modeinfo *umode;
+	struct drm_display_mode *mode = NULL;
+	struct drm_psb_mode_operation_arg *arg;
+	struct drm_mode_object *obj;
+	struct drm_connector *connector;
+	struct drm_connector_helper_funcs *connector_funcs;
+	int ret = 0;
+	int resp = MODE_OK;
+
+	arg = (struct drm_psb_mode_operation_arg *)data;
+	obj_id = arg->obj_id;
+	op = arg->operation;
+
+	switch (op) {
+	case PSB_MODE_OPERATION_MODE_VALID:
+		umode = &arg->mode;
+
+		mutex_lock(&dev->mode_config.mutex);
+
+		obj = drm_mode_object_find(dev, obj_id,
+					DRM_MODE_OBJECT_CONNECTOR);
+		if (!obj) {
+			ret = -EINVAL;
+			goto mode_op_out;
+		}
+
+		connector = obj_to_connector(obj);
+
+		mode = drm_mode_create(dev);
+		if (!mode) {
+			ret = -ENOMEM;
+			goto mode_op_out;
+		}
+
+		/* drm_crtc_convert_umode(mode, umode); */
+		{
+			mode->clock = umode->clock;
+			mode->hdisplay = umode->hdisplay;
+			mode->hsync_start = umode->hsync_start;
+			mode->hsync_end = umode->hsync_end;
+			mode->htotal = umode->htotal;
+			mode->hskew = umode->hskew;
+			mode->vdisplay = umode->vdisplay;
+			mode->vsync_start = umode->vsync_start;
+			mode->vsync_end = umode->vsync_end;
+			mode->vtotal = umode->vtotal;
+			mode->vscan = umode->vscan;
+			mode->vrefresh = umode->vrefresh;
+			mode->flags = umode->flags;
+			mode->type = umode->type;
+			strncpy(mode->name, umode->name, DRM_DISPLAY_MODE_LEN);
+			mode->name[DRM_DISPLAY_MODE_LEN-1] = 0;
+		}
+
+		connector_funcs = (struct drm_connector_helper_funcs *)
+				   connector->helper_private;
+
+		if (connector_funcs->mode_valid) {
+			resp = connector_funcs->mode_valid(connector, mode);
+			arg->data = resp;
+		}
+
+		/*do some clean up work*/
+		if (mode)
+			drm_mode_destroy(dev, mode);
+mode_op_out:
+		mutex_unlock(&dev->mode_config.mutex);
+		return ret;
+
+	default:
+		dev_dbg(dev->dev, "Unsupported psb mode operation\n");
+		return -EOPNOTSUPP;
+	}
+
+	return 0;
+}
+
+static int psb_stolen_memory_ioctl(struct drm_device *dev, void *data,
+				   struct drm_file *file_priv)
+{
+	struct drm_psb_private *dev_priv = psb_priv(dev);
+	struct drm_psb_stolen_memory_arg *arg = data;
+
+	arg->base = dev_priv->stolen_base;
+	arg->size = dev_priv->vram_stolen_size;
+
+	return 0;
+}
+
+static int psb_driver_open(struct drm_device *dev, struct drm_file *priv)
+{
+	return 0;
+}
+
+static void psb_driver_close(struct drm_device *dev, struct drm_file *priv)
+{
+}
+
+static long psb_unlocked_ioctl(struct file *filp, unsigned int cmd,
+			       unsigned long arg)
+{
+	struct drm_file *file_priv = filp->private_data;
+	struct drm_device *dev = file_priv->minor->dev;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	static unsigned int runtime_allowed;
+
+	if (runtime_allowed == 1 && dev_priv->is_lvds_on) {
+		runtime_allowed++;
+		pm_runtime_allow(&dev->pdev->dev);
+		dev_priv->rpm_enabled = 1;
+	}
+	return drm_ioctl(filp, cmd, arg);
+	/* FIXME: do we need to wrap the other side of this */
+}
+
+
+/* When a client dies:
+ *    - Check for and clean up flipped page state
+ */
+void psb_driver_preclose(struct drm_device *dev, struct drm_file *priv)
+{
+}
+
+static void psb_remove(struct pci_dev *pdev)
+{
+	struct drm_device *dev = pci_get_drvdata(pdev);
+	drm_put_dev(dev);
+}
+
+static const struct dev_pm_ops psb_pm_ops = {
+	.resume = gma_power_resume,
+	.suspend = gma_power_suspend,
+	.runtime_suspend = psb_runtime_suspend,
+	.runtime_resume = psb_runtime_resume,
+	.runtime_idle = psb_runtime_idle,
+};
+
+static struct vm_operations_struct psb_gem_vm_ops = {
+	.fault = psb_gem_fault,
+	.open = drm_gem_vm_open,
+	.close = drm_gem_vm_close,
+};
+
+static const struct file_operations psb_gem_fops = {
+	.owner = THIS_MODULE,
+	.open = drm_open,
+	.release = drm_release,
+	.unlocked_ioctl = psb_unlocked_ioctl,
+	.mmap = drm_gem_mmap,
+	.poll = drm_poll,
+	.fasync = drm_fasync,
+	.read = drm_read,
+};
+
+static struct drm_driver driver = {
+	.driver_features = DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | \
+			   DRIVER_IRQ_VBL | DRIVER_MODESET | DRIVER_GEM ,
+	.load = psb_driver_load,
+	.unload = psb_driver_unload,
+
+	.ioctls = psb_ioctls,
+	.num_ioctls = DRM_ARRAY_SIZE(psb_ioctls),
+	.device_is_agp = psb_driver_device_is_agp,
+	.irq_preinstall = psb_irq_preinstall,
+	.irq_postinstall = psb_irq_postinstall,
+	.irq_uninstall = psb_irq_uninstall,
+	.irq_handler = psb_irq_handler,
+	.enable_vblank = psb_enable_vblank,
+	.disable_vblank = psb_disable_vblank,
+	.get_vblank_counter = psb_get_vblank_counter,
+	.lastclose = psb_lastclose,
+	.open = psb_driver_open,
+	.preclose = psb_driver_preclose,
+	.postclose = psb_driver_close,
+	.reclaim_buffers = drm_core_reclaim_buffers,
+
+	.gem_init_object = psb_gem_init_object,
+	.gem_free_object = psb_gem_free_object,
+	.gem_vm_ops = &psb_gem_vm_ops,
+	.dumb_create = psb_gem_dumb_create,
+	.dumb_map_offset = psb_gem_dumb_map_gtt,
+	.dumb_destroy = psb_gem_dumb_destroy,
+	.fops = &psb_gem_fops,
+	.name = DRIVER_NAME,
+	.desc = DRIVER_DESC,
+	.date = PSB_DRM_DRIVER_DATE,
+	.major = PSB_DRM_DRIVER_MAJOR,
+	.minor = PSB_DRM_DRIVER_MINOR,
+	.patchlevel = PSB_DRM_DRIVER_PATCHLEVEL
+};
+
+static struct pci_driver psb_pci_driver = {
+	.name = DRIVER_NAME,
+	.id_table = pciidlist,
+	.probe = psb_probe,
+	.remove = psb_remove,
+	.driver.pm = &psb_pm_ops,
+};
+
+static int psb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
+{
+	return drm_get_pci_dev(pdev, ent, &driver);
+}
+
+static int __init psb_init(void)
+{
+	return drm_pci_init(&driver, &psb_pci_driver);
+}
+
+static void __exit psb_exit(void)
+{
+	drm_pci_exit(&driver, &psb_pci_driver);
+}
+
+late_initcall(psb_init);
+module_exit(psb_exit);
+
+MODULE_AUTHOR("Alan Cox <alan@linux.intel.com> and others");
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_LICENSE("GPL");
diff --git a/drivers/gpu/drm/gma500/psb_drv.h b/drivers/gpu/drm/gma500/psb_drv.h
new file mode 100644
index 000000000000..eb1568a0da95
--- /dev/null
+++ b/drivers/gpu/drm/gma500/psb_drv.h
@@ -0,0 +1,956 @@
+/**************************************************************************
+ * Copyright (c) 2007-2011, Intel Corporation.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ **************************************************************************/
+
+#ifndef _PSB_DRV_H_
+#define _PSB_DRV_H_
+
+#include <linux/kref.h>
+
+#include <drm/drmP.h>
+#include "drm_global.h"
+#include "gem_glue.h"
+#include "gma_drm.h"
+#include "psb_reg.h"
+#include "psb_intel_drv.h"
+#include "gtt.h"
+#include "power.h"
+#include "oaktrail.h"
+
+/* Append new drm mode definition here, align with libdrm definition */
+#define DRM_MODE_SCALE_NO_SCALE   	2
+
+enum {
+	CHIP_PSB_8108 = 0,		/* Poulsbo */
+	CHIP_PSB_8109 = 1,		/* Poulsbo */
+	CHIP_MRST_4100 = 2,		/* Moorestown/Oaktrail */
+	CHIP_MFLD_0130 = 3,		/* Medfield */
+};
+
+#define IS_PSB(dev) (((dev)->pci_device & 0xfffe) == 0x8108)
+#define IS_MRST(dev) (((dev)->pci_device & 0xfffc) == 0x4100)
+#define IS_MFLD(dev) (((dev)->pci_device & 0xfff8) == 0x0130)
+
+/*
+ * Driver definitions
+ */
+
+#define DRIVER_NAME "gma500"
+#define DRIVER_DESC "DRM driver for the Intel GMA500"
+
+#define PSB_DRM_DRIVER_DATE "2011-06-06"
+#define PSB_DRM_DRIVER_MAJOR 1
+#define PSB_DRM_DRIVER_MINOR 0
+#define PSB_DRM_DRIVER_PATCHLEVEL 0
+
+/*
+ *	Hardware offsets
+ */
+#define PSB_VDC_OFFSET		 0x00000000
+#define PSB_VDC_SIZE		 0x000080000
+#define MRST_MMIO_SIZE		 0x0000C0000
+#define MDFLD_MMIO_SIZE          0x000100000
+#define PSB_SGX_SIZE		 0x8000
+#define PSB_SGX_OFFSET		 0x00040000
+#define MRST_SGX_OFFSET		 0x00080000
+/*
+ *	PCI resource identifiers
+ */
+#define PSB_MMIO_RESOURCE	 0
+#define PSB_GATT_RESOURCE	 2
+#define PSB_GTT_RESOURCE	 3
+/*
+ *	PCI configuration
+ */
+#define PSB_GMCH_CTRL		 0x52
+#define PSB_BSM			 0x5C
+#define _PSB_GMCH_ENABLED	 0x4
+#define PSB_PGETBL_CTL		 0x2020
+#define _PSB_PGETBL_ENABLED	 0x00000001
+#define PSB_SGX_2D_SLAVE_PORT	 0x4000
+
+/* To get rid of */
+#define PSB_TT_PRIV0_LIMIT	 (256*1024*1024)
+#define PSB_TT_PRIV0_PLIMIT	 (PSB_TT_PRIV0_LIMIT >> PAGE_SHIFT)
+
+/*
+ *	SGX side MMU definitions (these can probably go)
+ */
+
+/*
+ *	Flags for external memory type field.
+ */
+#define PSB_MMU_CACHED_MEMORY	  0x0001	/* Bind to MMU only */
+#define PSB_MMU_RO_MEMORY	  0x0002	/* MMU RO memory */
+#define PSB_MMU_WO_MEMORY	  0x0004	/* MMU WO memory */
+/*
+ *	PTE's and PDE's
+ */
+#define PSB_PDE_MASK		  0x003FFFFF
+#define PSB_PDE_SHIFT		  22
+#define PSB_PTE_SHIFT		  12
+/*
+ *	Cache control
+ */
+#define PSB_PTE_VALID		  0x0001	/* PTE / PDE valid */
+#define PSB_PTE_WO		  0x0002	/* Write only */
+#define PSB_PTE_RO		  0x0004	/* Read only */
+#define PSB_PTE_CACHED		  0x0008	/* CPU cache coherent */
+
+/*
+ *	VDC registers and bits
+ */
+#define PSB_MSVDX_CLOCKGATING	  0x2064
+#define PSB_TOPAZ_CLOCKGATING	  0x2068
+#define PSB_HWSTAM		  0x2098
+#define PSB_INSTPM		  0x20C0
+#define PSB_INT_IDENTITY_R        0x20A4
+#define _MDFLD_PIPEC_EVENT_FLAG   (1<<2)
+#define _MDFLD_PIPEC_VBLANK_FLAG  (1<<3)
+#define _PSB_DPST_PIPEB_FLAG      (1<<4)
+#define _MDFLD_PIPEB_EVENT_FLAG   (1<<4)
+#define _PSB_VSYNC_PIPEB_FLAG	  (1<<5)
+#define _PSB_DPST_PIPEA_FLAG      (1<<6)
+#define _PSB_PIPEA_EVENT_FLAG     (1<<6)
+#define _PSB_VSYNC_PIPEA_FLAG	  (1<<7)
+#define _MDFLD_MIPIA_FLAG	  (1<<16)
+#define _MDFLD_MIPIC_FLAG	  (1<<17)
+#define _PSB_IRQ_SGX_FLAG	  (1<<18)
+#define _PSB_IRQ_MSVDX_FLAG	  (1<<19)
+#define _LNC_IRQ_TOPAZ_FLAG	  (1<<20)
+
+#define _PSB_PIPE_EVENT_FLAG	(_PSB_VSYNC_PIPEA_FLAG | \
+				 _PSB_VSYNC_PIPEB_FLAG)
+
+/* This flag includes all the display IRQ bits excepts the vblank irqs. */
+#define _MDFLD_DISP_ALL_IRQ_FLAG (_MDFLD_PIPEC_EVENT_FLAG | \
+				  _MDFLD_PIPEB_EVENT_FLAG | \
+				  _PSB_PIPEA_EVENT_FLAG | \
+				  _PSB_VSYNC_PIPEA_FLAG | \
+				  _MDFLD_MIPIA_FLAG | \
+				  _MDFLD_MIPIC_FLAG)
+#define PSB_INT_IDENTITY_R	  0x20A4
+#define PSB_INT_MASK_R		  0x20A8
+#define PSB_INT_ENABLE_R	  0x20A0
+
+#define _PSB_MMU_ER_MASK      0x0001FF00
+#define _PSB_MMU_ER_HOST      (1 << 16)
+#define GPIOA			0x5010
+#define GPIOB			0x5014
+#define GPIOC			0x5018
+#define GPIOD			0x501c
+#define GPIOE			0x5020
+#define GPIOF			0x5024
+#define GPIOG			0x5028
+#define GPIOH			0x502c
+#define GPIO_CLOCK_DIR_MASK		(1 << 0)
+#define GPIO_CLOCK_DIR_IN		(0 << 1)
+#define GPIO_CLOCK_DIR_OUT		(1 << 1)
+#define GPIO_CLOCK_VAL_MASK		(1 << 2)
+#define GPIO_CLOCK_VAL_OUT		(1 << 3)
+#define GPIO_CLOCK_VAL_IN		(1 << 4)
+#define GPIO_CLOCK_PULLUP_DISABLE	(1 << 5)
+#define GPIO_DATA_DIR_MASK		(1 << 8)
+#define GPIO_DATA_DIR_IN		(0 << 9)
+#define GPIO_DATA_DIR_OUT		(1 << 9)
+#define GPIO_DATA_VAL_MASK		(1 << 10)
+#define GPIO_DATA_VAL_OUT		(1 << 11)
+#define GPIO_DATA_VAL_IN		(1 << 12)
+#define GPIO_DATA_PULLUP_DISABLE	(1 << 13)
+
+#define VCLK_DIVISOR_VGA0   0x6000
+#define VCLK_DIVISOR_VGA1   0x6004
+#define VCLK_POST_DIV	    0x6010
+
+#define PSB_COMM_2D (PSB_ENGINE_2D << 4)
+#define PSB_COMM_3D (PSB_ENGINE_3D << 4)
+#define PSB_COMM_TA (PSB_ENGINE_TA << 4)
+#define PSB_COMM_HP (PSB_ENGINE_HP << 4)
+#define PSB_COMM_USER_IRQ (1024 >> 2)
+#define PSB_COMM_USER_IRQ_LOST (PSB_COMM_USER_IRQ + 1)
+#define PSB_COMM_FW (2048 >> 2)
+
+#define PSB_UIRQ_VISTEST	       1
+#define PSB_UIRQ_OOM_REPLY	       2
+#define PSB_UIRQ_FIRE_TA_REPLY	       3
+#define PSB_UIRQ_FIRE_RASTER_REPLY     4
+
+#define PSB_2D_SIZE (256*1024*1024)
+#define PSB_MAX_RELOC_PAGES 1024
+
+#define PSB_LOW_REG_OFFS 0x0204
+#define PSB_HIGH_REG_OFFS 0x0600
+
+#define PSB_NUM_VBLANKS 2
+
+
+#define PSB_2D_SIZE (256*1024*1024)
+#define PSB_MAX_RELOC_PAGES 1024
+
+#define PSB_LOW_REG_OFFS 0x0204
+#define PSB_HIGH_REG_OFFS 0x0600
+
+#define PSB_NUM_VBLANKS 2
+#define PSB_WATCHDOG_DELAY (DRM_HZ * 2)
+#define PSB_LID_DELAY (DRM_HZ / 10)
+
+#define MDFLD_PNW_B0 0x04
+#define MDFLD_PNW_C0 0x08
+
+#define MDFLD_DSR_2D_3D_0 	(1 << 0)
+#define MDFLD_DSR_2D_3D_2 	(1 << 1)
+#define MDFLD_DSR_CURSOR_0 	(1 << 2)
+#define MDFLD_DSR_CURSOR_2	(1 << 3)
+#define MDFLD_DSR_OVERLAY_0 	(1 << 4)
+#define MDFLD_DSR_OVERLAY_2 	(1 << 5)
+#define MDFLD_DSR_MIPI_CONTROL	(1 << 6)
+#define MDFLD_DSR_DAMAGE_MASK_0	((1 << 0) | (1 << 2) | (1 << 4))
+#define MDFLD_DSR_DAMAGE_MASK_2	((1 << 1) | (1 << 3) | (1 << 5))
+#define MDFLD_DSR_2D_3D 	(MDFLD_DSR_2D_3D_0 | MDFLD_DSR_2D_3D_2)
+
+#define MDFLD_DSR_RR		45
+#define MDFLD_DPU_ENABLE 	(1 << 31)
+#define MDFLD_DSR_FULLSCREEN 	(1 << 30)
+#define MDFLD_DSR_DELAY		(DRM_HZ / MDFLD_DSR_RR)
+
+#define PSB_PWR_STATE_ON		1
+#define PSB_PWR_STATE_OFF		2
+
+#define PSB_PMPOLICY_NOPM		0
+#define PSB_PMPOLICY_CLOCKGATING	1
+#define PSB_PMPOLICY_POWERDOWN		2
+
+#define PSB_PMSTATE_POWERUP		0
+#define PSB_PMSTATE_CLOCKGATED		1
+#define PSB_PMSTATE_POWERDOWN		2
+#define PSB_PCIx_MSI_ADDR_LOC		0x94
+#define PSB_PCIx_MSI_DATA_LOC		0x98
+
+/* Medfield crystal settings */
+#define KSEL_CRYSTAL_19 1
+#define KSEL_BYPASS_19 5
+#define KSEL_BYPASS_25 6
+#define KSEL_BYPASS_83_100 7
+
+struct opregion_header;
+struct opregion_acpi;
+struct opregion_swsci;
+struct opregion_asle;
+
+struct psb_intel_opregion {
+	struct opregion_header *header;
+	struct opregion_acpi *acpi;
+	struct opregion_swsci *swsci;
+	struct opregion_asle *asle;
+	int enabled;
+};
+
+struct sdvo_device_mapping {
+	u8 initialized;
+	u8 dvo_port;
+	u8 slave_addr;
+	u8 dvo_wiring;
+	u8 i2c_pin;
+	u8 i2c_speed;
+	u8 ddc_pin;
+};
+
+struct intel_gmbus {
+	struct i2c_adapter adapter;
+	struct i2c_adapter *force_bit;
+	u32 reg0;
+};
+
+struct psb_ops;
+
+#define PSB_NUM_PIPE		3
+
+struct drm_psb_private {
+	struct drm_device *dev;
+	const struct psb_ops *ops;
+
+	struct psb_gtt gtt;
+
+	/* GTT Memory manager */
+	struct psb_gtt_mm *gtt_mm;
+	struct page *scratch_page;
+	u32 *gtt_map;
+	uint32_t stolen_base;
+	void *vram_addr;
+	unsigned long vram_stolen_size;
+	int gtt_initialized;
+	u16 gmch_ctrl;		/* Saved GTT setup */
+	u32 pge_ctl;
+
+	struct mutex gtt_mutex;
+	struct resource *gtt_mem;	/* Our PCI resource */
+
+	struct psb_mmu_driver *mmu;
+	struct psb_mmu_pd *pf_pd;
+
+	/*
+	 * Register base
+	 */
+
+	uint8_t *sgx_reg;
+	uint8_t *vdc_reg;
+	uint32_t gatt_free_offset;
+
+	/*
+	 * Fencing / irq.
+	 */
+
+	uint32_t vdc_irq_mask;
+	uint32_t pipestat[PSB_NUM_PIPE];
+
+	spinlock_t irqmask_lock;
+
+	/*
+	 * Power
+	 */
+
+	bool suspended;
+	bool display_power;
+	int display_count;
+
+	/*
+	 * Modesetting
+	 */
+	struct psb_intel_mode_device mode_dev;
+
+	struct drm_crtc *plane_to_crtc_mapping[PSB_NUM_PIPE];
+	struct drm_crtc *pipe_to_crtc_mapping[PSB_NUM_PIPE];
+	uint32_t num_pipe;
+
+	/*
+	 * OSPM info (Power management base) (can go ?)
+	 */
+	uint32_t ospm_base;
+
+	/*
+	 * Sizes info
+	 */
+
+	u32 fuse_reg_value;
+	u32 video_device_fuse;
+
+	/* PCI revision ID for B0:D2:F0 */
+	uint8_t platform_rev_id;
+
+	/* gmbus */
+	struct intel_gmbus *gmbus;
+
+	/* Used by SDVO */
+	int crt_ddc_pin;
+	/* FIXME: The mappings should be parsed from bios but for now we can
+		  pretend there are no mappings available */
+	struct sdvo_device_mapping sdvo_mappings[2];
+	u32 hotplug_supported_mask;
+	struct drm_property *broadcast_rgb_property;
+	struct drm_property *force_audio_property;
+
+	/*
+	 * LVDS info
+	 */
+	int backlight_duty_cycle;	/* restore backlight to this value */
+	bool panel_wants_dither;
+	struct drm_display_mode *panel_fixed_mode;
+	struct drm_display_mode *lfp_lvds_vbt_mode;
+	struct drm_display_mode *sdvo_lvds_vbt_mode;
+
+	struct bdb_lvds_backlight *lvds_bl; /* LVDS backlight info from VBT */
+	struct psb_intel_i2c_chan *lvds_i2c_bus; /* FIXME: Remove this? */
+
+	/* Feature bits from the VBIOS */
+	unsigned int int_tv_support:1;
+	unsigned int lvds_dither:1;
+	unsigned int lvds_vbt:1;
+	unsigned int int_crt_support:1;
+	unsigned int lvds_use_ssc:1;
+	int lvds_ssc_freq;
+	bool is_lvds_on;
+	bool is_mipi_on;
+	u32 mipi_ctrl_display;
+
+	unsigned int core_freq;
+	uint32_t iLVDS_enable;
+
+	/* Runtime PM state */
+	int rpm_enabled;
+
+	/* MID specific */
+	struct oaktrail_vbt vbt_data;
+	struct oaktrail_gct_data gct_data;
+
+	/* MIPI Panel type etc */
+	int panel_id;
+	bool dual_mipi;		/* dual display - DPI & DBI */
+	bool dpi_panel_on;	/* The DPI panel power is on */
+	bool dpi_panel_on2;	/* The DPI panel power is on */
+	bool dbi_panel_on;	/* The DBI panel power is on */
+	bool dbi_panel_on2;	/* The DBI panel power is on */
+	u32 dsr_fb_update;	/* DSR FB update counter */
+
+	/* Moorestown HDMI state */
+	struct oaktrail_hdmi_dev *hdmi_priv;
+
+	/* Moorestown pipe config register value cache */
+	uint32_t pipeconf;
+	uint32_t pipeconf1;
+	uint32_t pipeconf2;
+
+	/* Moorestown plane control register value cache */
+	uint32_t dspcntr;
+	uint32_t dspcntr1;
+	uint32_t dspcntr2;
+
+	/* Moorestown MM backlight cache */
+	uint8_t saveBKLTCNT;
+	uint8_t saveBKLTREQ;
+	uint8_t saveBKLTBRTL;
+
+	/*
+	 * Register state
+	 */
+	uint32_t saveDSPACNTR;
+	uint32_t saveDSPBCNTR;
+	uint32_t savePIPEACONF;
+	uint32_t savePIPEBCONF;
+	uint32_t savePIPEASRC;
+	uint32_t savePIPEBSRC;
+	uint32_t saveFPA0;
+	uint32_t saveFPA1;
+	uint32_t saveDPLL_A;
+	uint32_t saveDPLL_A_MD;
+	uint32_t saveHTOTAL_A;
+	uint32_t saveHBLANK_A;
+	uint32_t saveHSYNC_A;
+	uint32_t saveVTOTAL_A;
+	uint32_t saveVBLANK_A;
+	uint32_t saveVSYNC_A;
+	uint32_t saveDSPASTRIDE;
+	uint32_t saveDSPASIZE;
+	uint32_t saveDSPAPOS;
+	uint32_t saveDSPABASE;
+	uint32_t saveDSPASURF;
+	uint32_t saveDSPASTATUS;
+	uint32_t saveFPB0;
+	uint32_t saveFPB1;
+	uint32_t saveDPLL_B;
+	uint32_t saveDPLL_B_MD;
+	uint32_t saveHTOTAL_B;
+	uint32_t saveHBLANK_B;
+	uint32_t saveHSYNC_B;
+	uint32_t saveVTOTAL_B;
+	uint32_t saveVBLANK_B;
+	uint32_t saveVSYNC_B;
+	uint32_t saveDSPBSTRIDE;
+	uint32_t saveDSPBSIZE;
+	uint32_t saveDSPBPOS;
+	uint32_t saveDSPBBASE;
+	uint32_t saveDSPBSURF;
+	uint32_t saveDSPBSTATUS;
+	uint32_t saveVCLK_DIVISOR_VGA0;
+	uint32_t saveVCLK_DIVISOR_VGA1;
+	uint32_t saveVCLK_POST_DIV;
+	uint32_t saveVGACNTRL;
+	uint32_t saveADPA;
+	uint32_t saveLVDS;
+	uint32_t saveDVOA;
+	uint32_t saveDVOB;
+	uint32_t saveDVOC;
+	uint32_t savePP_ON;
+	uint32_t savePP_OFF;
+	uint32_t savePP_CONTROL;
+	uint32_t savePP_CYCLE;
+	uint32_t savePFIT_CONTROL;
+	uint32_t savePaletteA[256];
+	uint32_t savePaletteB[256];
+	uint32_t saveBLC_PWM_CTL2;
+	uint32_t saveBLC_PWM_CTL;
+	uint32_t saveCLOCKGATING;
+	uint32_t saveDSPARB;
+	uint32_t saveDSPATILEOFF;
+	uint32_t saveDSPBTILEOFF;
+	uint32_t saveDSPAADDR;
+	uint32_t saveDSPBADDR;
+	uint32_t savePFIT_AUTO_RATIOS;
+	uint32_t savePFIT_PGM_RATIOS;
+	uint32_t savePP_ON_DELAYS;
+	uint32_t savePP_OFF_DELAYS;
+	uint32_t savePP_DIVISOR;
+	uint32_t saveBSM;
+	uint32_t saveVBT;
+	uint32_t saveBCLRPAT_A;
+	uint32_t saveBCLRPAT_B;
+	uint32_t saveDSPALINOFF;
+	uint32_t saveDSPBLINOFF;
+	uint32_t savePERF_MODE;
+	uint32_t saveDSPFW1;
+	uint32_t saveDSPFW2;
+	uint32_t saveDSPFW3;
+	uint32_t saveDSPFW4;
+	uint32_t saveDSPFW5;
+	uint32_t saveDSPFW6;
+	uint32_t saveCHICKENBIT;
+	uint32_t saveDSPACURSOR_CTRL;
+	uint32_t saveDSPBCURSOR_CTRL;
+	uint32_t saveDSPACURSOR_BASE;
+	uint32_t saveDSPBCURSOR_BASE;
+	uint32_t saveDSPACURSOR_POS;
+	uint32_t saveDSPBCURSOR_POS;
+	uint32_t save_palette_a[256];
+	uint32_t save_palette_b[256];
+	uint32_t saveOV_OVADD;
+	uint32_t saveOV_OGAMC0;
+	uint32_t saveOV_OGAMC1;
+	uint32_t saveOV_OGAMC2;
+	uint32_t saveOV_OGAMC3;
+	uint32_t saveOV_OGAMC4;
+	uint32_t saveOV_OGAMC5;
+	uint32_t saveOVC_OVADD;
+	uint32_t saveOVC_OGAMC0;
+	uint32_t saveOVC_OGAMC1;
+	uint32_t saveOVC_OGAMC2;
+	uint32_t saveOVC_OGAMC3;
+	uint32_t saveOVC_OGAMC4;
+	uint32_t saveOVC_OGAMC5;
+
+	/* MSI reg save */
+	uint32_t msi_addr;
+	uint32_t msi_data;
+
+	/* Medfield specific register save state */
+	uint32_t saveHDMIPHYMISCCTL;
+	uint32_t saveHDMIB_CONTROL;
+	uint32_t saveDSPCCNTR;
+	uint32_t savePIPECCONF;
+	uint32_t savePIPECSRC;
+	uint32_t saveHTOTAL_C;
+	uint32_t saveHBLANK_C;
+	uint32_t saveHSYNC_C;
+	uint32_t saveVTOTAL_C;
+	uint32_t saveVBLANK_C;
+	uint32_t saveVSYNC_C;
+	uint32_t saveDSPCSTRIDE;
+	uint32_t saveDSPCSIZE;
+	uint32_t saveDSPCPOS;
+	uint32_t saveDSPCSURF;
+	uint32_t saveDSPCSTATUS;
+	uint32_t saveDSPCLINOFF;
+	uint32_t saveDSPCTILEOFF;
+	uint32_t saveDSPCCURSOR_CTRL;
+	uint32_t saveDSPCCURSOR_BASE;
+	uint32_t saveDSPCCURSOR_POS;
+	uint32_t save_palette_c[256];
+	uint32_t saveOV_OVADD_C;
+	uint32_t saveOV_OGAMC0_C;
+	uint32_t saveOV_OGAMC1_C;
+	uint32_t saveOV_OGAMC2_C;
+	uint32_t saveOV_OGAMC3_C;
+	uint32_t saveOV_OGAMC4_C;
+	uint32_t saveOV_OGAMC5_C;
+
+	/* DSI register save */
+	uint32_t saveDEVICE_READY_REG;
+	uint32_t saveINTR_EN_REG;
+	uint32_t saveDSI_FUNC_PRG_REG;
+	uint32_t saveHS_TX_TIMEOUT_REG;
+	uint32_t saveLP_RX_TIMEOUT_REG;
+	uint32_t saveTURN_AROUND_TIMEOUT_REG;
+	uint32_t saveDEVICE_RESET_REG;
+	uint32_t saveDPI_RESOLUTION_REG;
+	uint32_t saveHORIZ_SYNC_PAD_COUNT_REG;
+	uint32_t saveHORIZ_BACK_PORCH_COUNT_REG;
+	uint32_t saveHORIZ_FRONT_PORCH_COUNT_REG;
+	uint32_t saveHORIZ_ACTIVE_AREA_COUNT_REG;
+	uint32_t saveVERT_SYNC_PAD_COUNT_REG;
+	uint32_t saveVERT_BACK_PORCH_COUNT_REG;
+	uint32_t saveVERT_FRONT_PORCH_COUNT_REG;
+	uint32_t saveHIGH_LOW_SWITCH_COUNT_REG;
+	uint32_t saveINIT_COUNT_REG;
+	uint32_t saveMAX_RET_PAK_REG;
+	uint32_t saveVIDEO_FMT_REG;
+	uint32_t saveEOT_DISABLE_REG;
+	uint32_t saveLP_BYTECLK_REG;
+	uint32_t saveHS_LS_DBI_ENABLE_REG;
+	uint32_t saveTXCLKESC_REG;
+	uint32_t saveDPHY_PARAM_REG;
+	uint32_t saveMIPI_CONTROL_REG;
+	uint32_t saveMIPI;
+	uint32_t saveMIPI_C;
+
+	/* DPST register save */
+	uint32_t saveHISTOGRAM_INT_CONTROL_REG;
+	uint32_t saveHISTOGRAM_LOGIC_CONTROL_REG;
+	uint32_t savePWM_CONTROL_LOGIC;
+
+	/*
+	 * DSI info. 
+	 */
+	void * dbi_dsr_info;	
+	void * dbi_dpu_info;
+	void * dsi_configs[2];
+	/*
+	 * LID-Switch
+	 */
+	spinlock_t lid_lock;
+	struct timer_list lid_timer;
+	struct psb_intel_opregion opregion;
+	u32 *lid_state;
+	u32 lid_last_state;
+
+	/*
+	 * Watchdog
+	 */
+
+	uint32_t apm_reg;
+	uint16_t apm_base;
+
+	/*
+	 * Used for modifying backlight from
+	 * xrandr -- consider removing and using HAL instead
+	 */
+	struct backlight_device *backlight_device;
+	struct drm_property *backlight_property;
+	uint32_t blc_adj1;
+	uint32_t blc_adj2;
+
+	void *fbdev;
+
+	/* 2D acceleration */
+	spinlock_t lock_2d;
+};
+
+
+/*
+ *	Operations for each board type
+ */
+ 
+struct psb_ops {
+	const char *name;
+	unsigned int accel_2d:1;
+	int pipes;		/* Number of output pipes */
+	int crtcs;		/* Number of CRTCs */
+	int sgx_offset;		/* Base offset of SGX device */
+
+	/* Sub functions */
+	struct drm_crtc_helper_funcs const *crtc_helper;
+	struct drm_crtc_funcs const *crtc_funcs;
+
+	/* Setup hooks */
+	int (*chip_setup)(struct drm_device *dev);
+	void (*chip_teardown)(struct drm_device *dev);
+
+	/* Display management hooks */
+	int (*output_init)(struct drm_device *dev);
+	/* Power management hooks */
+	void (*init_pm)(struct drm_device *dev);
+	int (*save_regs)(struct drm_device *dev);
+	int (*restore_regs)(struct drm_device *dev);
+	int (*power_up)(struct drm_device *dev);
+	int (*power_down)(struct drm_device *dev);
+
+	void (*lvds_bl_power)(struct drm_device *dev, bool on);
+#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
+	/* Backlight */
+	int (*backlight_init)(struct drm_device *dev);
+#endif
+	int i2c_bus;		/* I2C bus identifier for Moorestown */
+};
+
+
+
+struct psb_mmu_driver;
+
+extern int drm_crtc_probe_output_modes(struct drm_device *dev, int, int);
+extern int drm_pick_crtcs(struct drm_device *dev);
+
+static inline struct drm_psb_private *psb_priv(struct drm_device *dev)
+{
+	return (struct drm_psb_private *) dev->dev_private;
+}
+
+/*
+ * MMU stuff.
+ */
+
+extern struct psb_mmu_driver *psb_mmu_driver_init(uint8_t __iomem * registers,
+					int trap_pagefaults,
+					int invalid_type,
+					struct drm_psb_private *dev_priv);
+extern void psb_mmu_driver_takedown(struct psb_mmu_driver *driver);
+extern struct psb_mmu_pd *psb_mmu_get_default_pd(struct psb_mmu_driver
+						 *driver);
+extern void psb_mmu_mirror_gtt(struct psb_mmu_pd *pd, uint32_t mmu_offset,
+			       uint32_t gtt_start, uint32_t gtt_pages);
+extern struct psb_mmu_pd *psb_mmu_alloc_pd(struct psb_mmu_driver *driver,
+					   int trap_pagefaults,
+					   int invalid_type);
+extern void psb_mmu_free_pagedir(struct psb_mmu_pd *pd);
+extern void psb_mmu_flush(struct psb_mmu_driver *driver, int rc_prot);
+extern void psb_mmu_remove_pfn_sequence(struct psb_mmu_pd *pd,
+					unsigned long address,
+					uint32_t num_pages);
+extern int psb_mmu_insert_pfn_sequence(struct psb_mmu_pd *pd,
+				       uint32_t start_pfn,
+				       unsigned long address,
+				       uint32_t num_pages, int type);
+extern int psb_mmu_virtual_to_pfn(struct psb_mmu_pd *pd, uint32_t virtual,
+				  unsigned long *pfn);
+
+/*
+ * Enable / disable MMU for different requestors.
+ */
+
+
+extern void psb_mmu_set_pd_context(struct psb_mmu_pd *pd, int hw_context);
+extern int psb_mmu_insert_pages(struct psb_mmu_pd *pd, struct page **pages,
+				unsigned long address, uint32_t num_pages,
+				uint32_t desired_tile_stride,
+				uint32_t hw_tile_stride, int type);
+extern void psb_mmu_remove_pages(struct psb_mmu_pd *pd,
+				 unsigned long address, uint32_t num_pages,
+				 uint32_t desired_tile_stride,
+				 uint32_t hw_tile_stride);
+/*
+ *psb_irq.c
+ */
+
+extern irqreturn_t psb_irq_handler(DRM_IRQ_ARGS);
+extern int psb_irq_enable_dpst(struct drm_device *dev);
+extern int psb_irq_disable_dpst(struct drm_device *dev);
+extern void psb_irq_preinstall(struct drm_device *dev);
+extern int psb_irq_postinstall(struct drm_device *dev);
+extern void psb_irq_uninstall(struct drm_device *dev);
+extern void psb_irq_turn_on_dpst(struct drm_device *dev);
+extern void psb_irq_turn_off_dpst(struct drm_device *dev);
+
+extern void psb_irq_uninstall_islands(struct drm_device *dev, int hw_islands);
+extern int psb_vblank_wait2(struct drm_device *dev, unsigned int *sequence);
+extern int psb_vblank_wait(struct drm_device *dev, unsigned int *sequence);
+extern int psb_enable_vblank(struct drm_device *dev, int crtc);
+extern void psb_disable_vblank(struct drm_device *dev, int crtc);
+void
+psb_enable_pipestat(struct drm_psb_private *dev_priv, int pipe, u32 mask);
+
+void
+psb_disable_pipestat(struct drm_psb_private *dev_priv, int pipe, u32 mask);
+
+extern u32 psb_get_vblank_counter(struct drm_device *dev, int crtc);
+
+/*
+ * intel_opregion.c
+ */
+extern int gma_intel_opregion_init(struct drm_device *dev);
+extern int gma_intel_opregion_exit(struct drm_device *dev);
+
+/*
+ * framebuffer.c
+ */
+extern int psbfb_probed(struct drm_device *dev);
+extern int psbfb_remove(struct drm_device *dev,
+			struct drm_framebuffer *fb);
+/*
+ * accel_2d.c
+ */
+extern void psbfb_copyarea(struct fb_info *info,
+					const struct fb_copyarea *region);
+extern int psbfb_sync(struct fb_info *info);
+extern void psb_spank(struct drm_psb_private *dev_priv);
+
+/*
+ * psb_reset.c
+ */
+
+extern void psb_lid_timer_init(struct drm_psb_private *dev_priv);
+extern void psb_lid_timer_takedown(struct drm_psb_private *dev_priv);
+extern void psb_print_pagefault(struct drm_psb_private *dev_priv);
+
+/* modesetting */
+extern void psb_modeset_init(struct drm_device *dev);
+extern void psb_modeset_cleanup(struct drm_device *dev);
+extern int psb_fbdev_init(struct drm_device *dev);
+
+/* backlight.c */
+int gma_backlight_init(struct drm_device *dev);
+void gma_backlight_exit(struct drm_device *dev);
+
+/* oaktrail_crtc.c */
+extern const struct drm_crtc_helper_funcs oaktrail_helper_funcs;
+
+/* oaktrail_lvds.c */
+extern void oaktrail_lvds_init(struct drm_device *dev,
+		    struct psb_intel_mode_device *mode_dev);
+
+/* psb_intel_display.c */
+extern const struct drm_crtc_helper_funcs psb_intel_helper_funcs;
+extern const struct drm_crtc_funcs psb_intel_crtc_funcs;
+
+/* psb_intel_lvds.c */
+extern const struct drm_connector_helper_funcs
+					psb_intel_lvds_connector_helper_funcs;
+extern const struct drm_connector_funcs psb_intel_lvds_connector_funcs;
+
+/* gem.c */
+extern int psb_gem_init_object(struct drm_gem_object *obj);
+extern void psb_gem_free_object(struct drm_gem_object *obj);
+extern int psb_gem_get_aperture(struct drm_device *dev, void *data,
+			struct drm_file *file);
+extern int psb_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
+			struct drm_mode_create_dumb *args);
+extern int psb_gem_dumb_destroy(struct drm_file *file, struct drm_device *dev,
+			uint32_t handle);
+extern int psb_gem_dumb_map_gtt(struct drm_file *file, struct drm_device *dev,
+			uint32_t handle, uint64_t *offset);
+extern int psb_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
+extern int psb_gem_create_ioctl(struct drm_device *dev, void *data,
+			struct drm_file *file);
+extern int psb_gem_mmap_ioctl(struct drm_device *dev, void *data,
+					struct drm_file *file);
+
+/* psb_device.c */
+extern const struct psb_ops psb_chip_ops;
+
+/* oaktrail_device.c */
+extern const struct psb_ops oaktrail_chip_ops;
+
+/* cdv_device.c */
+extern const struct psb_ops cdv_chip_ops;
+
+/*
+ * Debug print bits setting
+ */
+#define PSB_D_GENERAL (1 << 0)
+#define PSB_D_INIT    (1 << 1)
+#define PSB_D_IRQ     (1 << 2)
+#define PSB_D_ENTRY   (1 << 3)
+/* debug the get H/V BP/FP count */
+#define PSB_D_HV      (1 << 4)
+#define PSB_D_DBI_BF  (1 << 5)
+#define PSB_D_PM      (1 << 6)
+#define PSB_D_RENDER  (1 << 7)
+#define PSB_D_REG     (1 << 8)
+#define PSB_D_MSVDX   (1 << 9)
+#define PSB_D_TOPAZ   (1 << 10)
+
+extern int drm_psb_no_fb;
+extern int drm_idle_check_interval;
+
+/*
+ *	Utilities
+ */
+
+static inline u32 MRST_MSG_READ32(uint port, uint offset)
+{
+	int mcr = (0xD0<<24) | (port << 16) | (offset << 8);
+	uint32_t ret_val = 0;
+	struct pci_dev *pci_root = pci_get_bus_and_slot(0, 0);
+	pci_write_config_dword(pci_root, 0xD0, mcr);
+	pci_read_config_dword(pci_root, 0xD4, &ret_val);
+	pci_dev_put(pci_root);
+	return ret_val;
+}
+static inline void MRST_MSG_WRITE32(uint port, uint offset, u32 value)
+{
+	int mcr = (0xE0<<24) | (port << 16) | (offset << 8) | 0xF0;
+	struct pci_dev *pci_root = pci_get_bus_and_slot(0, 0);
+	pci_write_config_dword(pci_root, 0xD4, value);
+	pci_write_config_dword(pci_root, 0xD0, mcr);
+	pci_dev_put(pci_root);
+}
+static inline u32 MDFLD_MSG_READ32(uint port, uint offset)
+{
+	int mcr = (0x10<<24) | (port << 16) | (offset << 8);
+	uint32_t ret_val = 0;
+	struct pci_dev *pci_root = pci_get_bus_and_slot(0, 0);
+	pci_write_config_dword(pci_root, 0xD0, mcr);
+	pci_read_config_dword(pci_root, 0xD4, &ret_val);
+	pci_dev_put(pci_root);
+	return ret_val;
+}
+static inline void MDFLD_MSG_WRITE32(uint port, uint offset, u32 value)
+{
+	int mcr = (0x11<<24) | (port << 16) | (offset << 8) | 0xF0;
+	struct pci_dev *pci_root = pci_get_bus_and_slot(0, 0);
+	pci_write_config_dword(pci_root, 0xD4, value);
+	pci_write_config_dword(pci_root, 0xD0, mcr);
+	pci_dev_put(pci_root);
+}
+
+static inline uint32_t REGISTER_READ(struct drm_device *dev, uint32_t reg)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	return ioread32(dev_priv->vdc_reg + reg);
+}
+
+#define REG_READ(reg)	       REGISTER_READ(dev, (reg))
+
+static inline void REGISTER_WRITE(struct drm_device *dev, uint32_t reg,
+				      uint32_t val)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	iowrite32((val), dev_priv->vdc_reg + (reg));
+}
+
+#define REG_WRITE(reg, val)	REGISTER_WRITE(dev, (reg), (val))
+
+static inline void REGISTER_WRITE16(struct drm_device *dev,
+					uint32_t reg, uint32_t val)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	iowrite16((val), dev_priv->vdc_reg + (reg));
+}
+
+#define REG_WRITE16(reg, val)	  REGISTER_WRITE16(dev, (reg), (val))
+
+static inline void REGISTER_WRITE8(struct drm_device *dev,
+				       uint32_t reg, uint32_t val)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	iowrite8((val), dev_priv->vdc_reg + (reg));
+}
+
+#define REG_WRITE8(reg, val)		REGISTER_WRITE8(dev, (reg), (val))
+
+#define PSB_WVDC32(_val, _offs)		iowrite32(_val, dev_priv->vdc_reg + (_offs))
+#define PSB_RVDC32(_offs)		ioread32(dev_priv->vdc_reg + (_offs))
+
+/* #define TRAP_SGX_PM_FAULT 1 */
+#ifdef TRAP_SGX_PM_FAULT
+#define PSB_RSGX32(_offs)						\
+({									\
+	if (inl(dev_priv->apm_base + PSB_APM_STS) & 0x3) {		\
+		printk(KERN_ERR						\
+			"access sgx when it's off!! (READ) %s, %d\n",	\
+	       __FILE__, __LINE__);					\
+		melay(1000);						\
+	}								\
+	ioread32(dev_priv->sgx_reg + (_offs));				\
+})
+#else
+#define PSB_RSGX32(_offs)		ioread32(dev_priv->sgx_reg + (_offs))
+#endif
+#define PSB_WSGX32(_val, _offs)		iowrite32(_val, dev_priv->sgx_reg + (_offs))
+
+#define MSVDX_REG_DUMP 0
+
+#define PSB_WMSVDX32(_val, _offs)	iowrite32(_val, dev_priv->msvdx_reg + (_offs))
+#define PSB_RMSVDX32(_offs)		ioread32(dev_priv->msvdx_reg + (_offs))
+
+#endif
diff --git a/drivers/gpu/drm/gma500/psb_intel_display.c b/drivers/gpu/drm/gma500/psb_intel_display.c
new file mode 100644
index 000000000000..49e983508d5c
--- /dev/null
+++ b/drivers/gpu/drm/gma500/psb_intel_display.c
@@ -0,0 +1,1446 @@
+/*
+ * Copyright © 2006-2011 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Authors:
+ *	Eric Anholt <eric@anholt.net>
+ */
+
+#include <linux/i2c.h>
+#include <linux/pm_runtime.h>
+
+#include <drm/drmP.h>
+#include "framebuffer.h"
+#include "psb_drv.h"
+#include "psb_intel_drv.h"
+#include "psb_intel_reg.h"
+#include "psb_intel_display.h"
+#include "power.h"
+
+struct psb_intel_clock_t {
+	/* given values */
+	int n;
+	int m1, m2;
+	int p1, p2;
+	/* derived values */
+	int dot;
+	int vco;
+	int m;
+	int p;
+};
+
+struct psb_intel_range_t {
+	int min, max;
+};
+
+struct psb_intel_p2_t {
+	int dot_limit;
+	int p2_slow, p2_fast;
+};
+
+#define INTEL_P2_NUM		      2
+
+struct psb_intel_limit_t {
+	struct psb_intel_range_t dot, vco, n, m, m1, m2, p, p1;
+	struct psb_intel_p2_t p2;
+};
+
+#define I8XX_DOT_MIN		  25000
+#define I8XX_DOT_MAX		 350000
+#define I8XX_VCO_MIN		 930000
+#define I8XX_VCO_MAX		1400000
+#define I8XX_N_MIN		      3
+#define I8XX_N_MAX		     16
+#define I8XX_M_MIN		     96
+#define I8XX_M_MAX		    140
+#define I8XX_M1_MIN		     18
+#define I8XX_M1_MAX		     26
+#define I8XX_M2_MIN		      6
+#define I8XX_M2_MAX		     16
+#define I8XX_P_MIN		      4
+#define I8XX_P_MAX		    128
+#define I8XX_P1_MIN		      2
+#define I8XX_P1_MAX		     33
+#define I8XX_P1_LVDS_MIN	      1
+#define I8XX_P1_LVDS_MAX	      6
+#define I8XX_P2_SLOW		      4
+#define I8XX_P2_FAST		      2
+#define I8XX_P2_LVDS_SLOW	      14
+#define I8XX_P2_LVDS_FAST	      14	/* No fast option */
+#define I8XX_P2_SLOW_LIMIT	 165000
+
+#define I9XX_DOT_MIN		  20000
+#define I9XX_DOT_MAX		 400000
+#define I9XX_VCO_MIN		1400000
+#define I9XX_VCO_MAX		2800000
+#define I9XX_N_MIN		      3
+#define I9XX_N_MAX		      8
+#define I9XX_M_MIN		     70
+#define I9XX_M_MAX		    120
+#define I9XX_M1_MIN		     10
+#define I9XX_M1_MAX		     20
+#define I9XX_M2_MIN		      5
+#define I9XX_M2_MAX		      9
+#define I9XX_P_SDVO_DAC_MIN	      5
+#define I9XX_P_SDVO_DAC_MAX	     80
+#define I9XX_P_LVDS_MIN		      7
+#define I9XX_P_LVDS_MAX		     98
+#define I9XX_P1_MIN		      1
+#define I9XX_P1_MAX		      8
+#define I9XX_P2_SDVO_DAC_SLOW		     10
+#define I9XX_P2_SDVO_DAC_FAST		      5
+#define I9XX_P2_SDVO_DAC_SLOW_LIMIT	 200000
+#define I9XX_P2_LVDS_SLOW		     14
+#define I9XX_P2_LVDS_FAST		      7
+#define I9XX_P2_LVDS_SLOW_LIMIT		 112000
+
+#define INTEL_LIMIT_I8XX_DVO_DAC    0
+#define INTEL_LIMIT_I8XX_LVDS	    1
+#define INTEL_LIMIT_I9XX_SDVO_DAC   2
+#define INTEL_LIMIT_I9XX_LVDS	    3
+
+static const struct psb_intel_limit_t psb_intel_limits[] = {
+	{			/* INTEL_LIMIT_I8XX_DVO_DAC */
+	 .dot = {.min = I8XX_DOT_MIN, .max = I8XX_DOT_MAX},
+	 .vco = {.min = I8XX_VCO_MIN, .max = I8XX_VCO_MAX},
+	 .n = {.min = I8XX_N_MIN, .max = I8XX_N_MAX},
+	 .m = {.min = I8XX_M_MIN, .max = I8XX_M_MAX},
+	 .m1 = {.min = I8XX_M1_MIN, .max = I8XX_M1_MAX},
+	 .m2 = {.min = I8XX_M2_MIN, .max = I8XX_M2_MAX},
+	 .p = {.min = I8XX_P_MIN, .max = I8XX_P_MAX},
+	 .p1 = {.min = I8XX_P1_MIN, .max = I8XX_P1_MAX},
+	 .p2 = {.dot_limit = I8XX_P2_SLOW_LIMIT,
+		.p2_slow = I8XX_P2_SLOW, .p2_fast = I8XX_P2_FAST},
+	 },
+	{			/* INTEL_LIMIT_I8XX_LVDS */
+	 .dot = {.min = I8XX_DOT_MIN, .max = I8XX_DOT_MAX},
+	 .vco = {.min = I8XX_VCO_MIN, .max = I8XX_VCO_MAX},
+	 .n = {.min = I8XX_N_MIN, .max = I8XX_N_MAX},
+	 .m = {.min = I8XX_M_MIN, .max = I8XX_M_MAX},
+	 .m1 = {.min = I8XX_M1_MIN, .max = I8XX_M1_MAX},
+	 .m2 = {.min = I8XX_M2_MIN, .max = I8XX_M2_MAX},
+	 .p = {.min = I8XX_P_MIN, .max = I8XX_P_MAX},
+	 .p1 = {.min = I8XX_P1_LVDS_MIN, .max = I8XX_P1_LVDS_MAX},
+	 .p2 = {.dot_limit = I8XX_P2_SLOW_LIMIT,
+		.p2_slow = I8XX_P2_LVDS_SLOW, .p2_fast = I8XX_P2_LVDS_FAST},
+	 },
+	{			/* INTEL_LIMIT_I9XX_SDVO_DAC */
+	 .dot = {.min = I9XX_DOT_MIN, .max = I9XX_DOT_MAX},
+	 .vco = {.min = I9XX_VCO_MIN, .max = I9XX_VCO_MAX},
+	 .n = {.min = I9XX_N_MIN, .max = I9XX_N_MAX},
+	 .m = {.min = I9XX_M_MIN, .max = I9XX_M_MAX},
+	 .m1 = {.min = I9XX_M1_MIN, .max = I9XX_M1_MAX},
+	 .m2 = {.min = I9XX_M2_MIN, .max = I9XX_M2_MAX},
+	 .p = {.min = I9XX_P_SDVO_DAC_MIN, .max = I9XX_P_SDVO_DAC_MAX},
+	 .p1 = {.min = I9XX_P1_MIN, .max = I9XX_P1_MAX},
+	 .p2 = {.dot_limit = I9XX_P2_SDVO_DAC_SLOW_LIMIT,
+		.p2_slow = I9XX_P2_SDVO_DAC_SLOW, .p2_fast =
+		I9XX_P2_SDVO_DAC_FAST},
+	 },
+	{			/* INTEL_LIMIT_I9XX_LVDS */
+	 .dot = {.min = I9XX_DOT_MIN, .max = I9XX_DOT_MAX},
+	 .vco = {.min = I9XX_VCO_MIN, .max = I9XX_VCO_MAX},
+	 .n = {.min = I9XX_N_MIN, .max = I9XX_N_MAX},
+	 .m = {.min = I9XX_M_MIN, .max = I9XX_M_MAX},
+	 .m1 = {.min = I9XX_M1_MIN, .max = I9XX_M1_MAX},
+	 .m2 = {.min = I9XX_M2_MIN, .max = I9XX_M2_MAX},
+	 .p = {.min = I9XX_P_LVDS_MIN, .max = I9XX_P_LVDS_MAX},
+	 .p1 = {.min = I9XX_P1_MIN, .max = I9XX_P1_MAX},
+	 /* The single-channel range is 25-112Mhz, and dual-channel
+	  * is 80-224Mhz.  Prefer single channel as much as possible.
+	  */
+	 .p2 = {.dot_limit = I9XX_P2_LVDS_SLOW_LIMIT,
+		.p2_slow = I9XX_P2_LVDS_SLOW, .p2_fast = I9XX_P2_LVDS_FAST},
+	 },
+};
+
+static const struct psb_intel_limit_t *psb_intel_limit(struct drm_crtc *crtc)
+{
+	const struct psb_intel_limit_t *limit;
+
+	if (psb_intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS))
+		limit = &psb_intel_limits[INTEL_LIMIT_I9XX_LVDS];
+	else
+		limit = &psb_intel_limits[INTEL_LIMIT_I9XX_SDVO_DAC];
+	return limit;
+}
+
+/** Derive the pixel clock for the given refclk and divisors for 8xx chips. */
+
+static void i8xx_clock(int refclk, struct psb_intel_clock_t *clock)
+{
+	clock->m = 5 * (clock->m1 + 2) + (clock->m2 + 2);
+	clock->p = clock->p1 * clock->p2;
+	clock->vco = refclk * clock->m / (clock->n + 2);
+	clock->dot = clock->vco / clock->p;
+}
+
+/** Derive the pixel clock for the given refclk and divisors for 9xx chips. */
+
+static void i9xx_clock(int refclk, struct psb_intel_clock_t *clock)
+{
+	clock->m = 5 * (clock->m1 + 2) + (clock->m2 + 2);
+	clock->p = clock->p1 * clock->p2;
+	clock->vco = refclk * clock->m / (clock->n + 2);
+	clock->dot = clock->vco / clock->p;
+}
+
+static void psb_intel_clock(struct drm_device *dev, int refclk,
+			struct psb_intel_clock_t *clock)
+{
+	return i9xx_clock(refclk, clock);
+}
+
+/**
+ * Returns whether any output on the specified pipe is of the specified type
+ */
+bool psb_intel_pipe_has_type(struct drm_crtc *crtc, int type)
+{
+	struct drm_device *dev = crtc->dev;
+	struct drm_mode_config *mode_config = &dev->mode_config;
+	struct drm_connector *l_entry;
+
+	list_for_each_entry(l_entry, &mode_config->connector_list, head) {
+		if (l_entry->encoder && l_entry->encoder->crtc == crtc) {
+			struct psb_intel_encoder *psb_intel_encoder =
+					psb_intel_attached_encoder(l_entry);
+			if (psb_intel_encoder->type == type)
+				return true;
+		}
+	}
+	return false;
+}
+
+#define INTELPllInvalid(s)   { /* ErrorF (s) */; return false; }
+/**
+ * Returns whether the given set of divisors are valid for a given refclk with
+ * the given connectors.
+ */
+
+static bool psb_intel_PLL_is_valid(struct drm_crtc *crtc,
+			       struct psb_intel_clock_t *clock)
+{
+	const struct psb_intel_limit_t *limit = psb_intel_limit(crtc);
+
+	if (clock->p1 < limit->p1.min || limit->p1.max < clock->p1)
+		INTELPllInvalid("p1 out of range\n");
+	if (clock->p < limit->p.min || limit->p.max < clock->p)
+		INTELPllInvalid("p out of range\n");
+	if (clock->m2 < limit->m2.min || limit->m2.max < clock->m2)
+		INTELPllInvalid("m2 out of range\n");
+	if (clock->m1 < limit->m1.min || limit->m1.max < clock->m1)
+		INTELPllInvalid("m1 out of range\n");
+	if (clock->m1 <= clock->m2)
+		INTELPllInvalid("m1 <= m2\n");
+	if (clock->m < limit->m.min || limit->m.max < clock->m)
+		INTELPllInvalid("m out of range\n");
+	if (clock->n < limit->n.min || limit->n.max < clock->n)
+		INTELPllInvalid("n out of range\n");
+	if (clock->vco < limit->vco.min || limit->vco.max < clock->vco)
+		INTELPllInvalid("vco out of range\n");
+	/* XXX: We may need to be checking "Dot clock"
+	 * depending on the multiplier, connector, etc.,
+	 * rather than just a single range.
+	 */
+	if (clock->dot < limit->dot.min || limit->dot.max < clock->dot)
+		INTELPllInvalid("dot out of range\n");
+
+	return true;
+}
+
+/**
+ * Returns a set of divisors for the desired target clock with the given
+ * refclk, or FALSE.  The returned values represent the clock equation:
+ * reflck * (5 * (m1 + 2) + (m2 + 2)) / (n + 2) / p1 / p2.
+ */
+static bool psb_intel_find_best_PLL(struct drm_crtc *crtc, int target,
+				int refclk,
+				struct psb_intel_clock_t *best_clock)
+{
+	struct drm_device *dev = crtc->dev;
+	struct psb_intel_clock_t clock;
+	const struct psb_intel_limit_t *limit = psb_intel_limit(crtc);
+	int err = target;
+
+	if (psb_intel_pipe_has_type(crtc, INTEL_OUTPUT_LVDS) &&
+	    (REG_READ(LVDS) & LVDS_PORT_EN) != 0) {
+		/*
+		 * For LVDS, if the panel is on, just rely on its current
+		 * settings for dual-channel.  We haven't figured out how to
+		 * reliably set up different single/dual channel state, if we
+		 * even can.
+		 */
+		if ((REG_READ(LVDS) & LVDS_CLKB_POWER_MASK) ==
+		    LVDS_CLKB_POWER_UP)
+			clock.p2 = limit->p2.p2_fast;
+		else
+			clock.p2 = limit->p2.p2_slow;
+	} else {
+		if (target < limit->p2.dot_limit)
+			clock.p2 = limit->p2.p2_slow;
+		else
+			clock.p2 = limit->p2.p2_fast;
+	}
+
+	memset(best_clock, 0, sizeof(*best_clock));
+
+	for (clock.m1 = limit->m1.min; clock.m1 <= limit->m1.max;
+	     clock.m1++) {
+		for (clock.m2 = limit->m2.min;
+		     clock.m2 < clock.m1 && clock.m2 <= limit->m2.max;
+		     clock.m2++) {
+			for (clock.n = limit->n.min;
+			     clock.n <= limit->n.max; clock.n++) {
+				for (clock.p1 = limit->p1.min;
+				     clock.p1 <= limit->p1.max;
+				     clock.p1++) {
+					int this_err;
+
+					psb_intel_clock(dev, refclk, &clock);
+
+					if (!psb_intel_PLL_is_valid
+					    (crtc, &clock))
+						continue;
+
+					this_err = abs(clock.dot - target);
+					if (this_err < err) {
+						*best_clock = clock;
+						err = this_err;
+					}
+				}
+			}
+		}
+	}
+
+	return err != target;
+}
+
+void psb_intel_wait_for_vblank(struct drm_device *dev)
+{
+	/* Wait for 20ms, i.e. one cycle at 50hz. */
+	mdelay(20);
+}
+
+int psb_intel_pipe_set_base(struct drm_crtc *crtc,
+			    int x, int y, struct drm_framebuffer *old_fb)
+{
+	struct drm_device *dev = crtc->dev;
+	/* struct drm_i915_master_private *master_priv; */
+	struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
+	struct psb_framebuffer *psbfb = to_psb_fb(crtc->fb);
+	int pipe = psb_intel_crtc->pipe;
+	unsigned long start, offset;
+	int dspbase = (pipe == 0 ? DSPABASE : DSPBBASE);
+	int dspsurf = (pipe == 0 ? DSPASURF : DSPBSURF);
+	int dspstride = (pipe == 0) ? DSPASTRIDE : DSPBSTRIDE;
+	int dspcntr_reg = (pipe == 0) ? DSPACNTR : DSPBCNTR;
+	u32 dspcntr;
+	int ret = 0;
+
+	if (!gma_power_begin(dev, true))
+		return 0;
+
+	/* no fb bound */
+	if (!crtc->fb) {
+		dev_dbg(dev->dev, "No FB bound\n");
+		goto psb_intel_pipe_cleaner;
+	}
+
+	/* We are displaying this buffer, make sure it is actually loaded
+	   into the GTT */
+	ret = psb_gtt_pin(psbfb->gtt);
+	if (ret < 0)
+		goto psb_intel_pipe_set_base_exit;
+	start = psbfb->gtt->offset;
+
+	offset = y * crtc->fb->pitches[0] + x * (crtc->fb->bits_per_pixel / 8);
+
+	REG_WRITE(dspstride, crtc->fb->pitches[0]);
+
+	dspcntr = REG_READ(dspcntr_reg);
+	dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
+
+	switch (crtc->fb->bits_per_pixel) {
+	case 8:
+		dspcntr |= DISPPLANE_8BPP;
+		break;
+	case 16:
+		if (crtc->fb->depth == 15)
+			dspcntr |= DISPPLANE_15_16BPP;
+		else
+			dspcntr |= DISPPLANE_16BPP;
+		break;
+	case 24:
+	case 32:
+		dspcntr |= DISPPLANE_32BPP_NO_ALPHA;
+		break;
+	default:
+		dev_err(dev->dev, "Unknown color depth\n");
+		ret = -EINVAL;
+		psb_gtt_unpin(psbfb->gtt);
+		goto psb_intel_pipe_set_base_exit;
+	}
+	REG_WRITE(dspcntr_reg, dspcntr);
+
+
+	if (0 /* FIXMEAC - check what PSB needs */) {
+		REG_WRITE(dspbase, offset);
+		REG_READ(dspbase);
+		REG_WRITE(dspsurf, start);
+		REG_READ(dspsurf);
+	} else {
+		REG_WRITE(dspbase, start + offset);
+		REG_READ(dspbase);
+	}
+
+psb_intel_pipe_cleaner:
+	/* If there was a previous display we can now unpin it */
+	if (old_fb)
+		psb_gtt_unpin(to_psb_fb(old_fb)->gtt);
+
+psb_intel_pipe_set_base_exit:
+	gma_power_end(dev);
+	return ret;
+}
+
+/**
+ * Sets the power management mode of the pipe and plane.
+ *
+ * This code should probably grow support for turning the cursor off and back
+ * on appropriately at the same time as we're turning the pipe off/on.
+ */
+static void psb_intel_crtc_dpms(struct drm_crtc *crtc, int mode)
+{
+	struct drm_device *dev = crtc->dev;
+	/* struct drm_i915_master_private *master_priv; */
+	/* struct drm_i915_private *dev_priv = dev->dev_private; */
+	struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
+	int pipe = psb_intel_crtc->pipe;
+	int dpll_reg = (pipe == 0) ? DPLL_A : DPLL_B;
+	int dspcntr_reg = (pipe == 0) ? DSPACNTR : DSPBCNTR;
+	int dspbase_reg = (pipe == 0) ? DSPABASE : DSPBBASE;
+	int pipeconf_reg = (pipe == 0) ? PIPEACONF : PIPEBCONF;
+	u32 temp;
+	bool enabled;
+
+	/* XXX: When our outputs are all unaware of DPMS modes other than off
+	 * and on, we should map those modes to DRM_MODE_DPMS_OFF in the CRTC.
+	 */
+	switch (mode) {
+	case DRM_MODE_DPMS_ON:
+	case DRM_MODE_DPMS_STANDBY:
+	case DRM_MODE_DPMS_SUSPEND:
+		/* Enable the DPLL */
+		temp = REG_READ(dpll_reg);
+		if ((temp & DPLL_VCO_ENABLE) == 0) {
+			REG_WRITE(dpll_reg, temp);
+			REG_READ(dpll_reg);
+			/* Wait for the clocks to stabilize. */
+			udelay(150);
+			REG_WRITE(dpll_reg, temp | DPLL_VCO_ENABLE);
+			REG_READ(dpll_reg);
+			/* Wait for the clocks to stabilize. */
+			udelay(150);
+			REG_WRITE(dpll_reg, temp | DPLL_VCO_ENABLE);
+			REG_READ(dpll_reg);
+			/* Wait for the clocks to stabilize. */
+			udelay(150);
+		}
+
+		/* Enable the pipe */
+		temp = REG_READ(pipeconf_reg);
+		if ((temp & PIPEACONF_ENABLE) == 0)
+			REG_WRITE(pipeconf_reg, temp | PIPEACONF_ENABLE);
+
+		/* Enable the plane */
+		temp = REG_READ(dspcntr_reg);
+		if ((temp & DISPLAY_PLANE_ENABLE) == 0) {
+			REG_WRITE(dspcntr_reg,
+				  temp | DISPLAY_PLANE_ENABLE);
+			/* Flush the plane changes */
+			REG_WRITE(dspbase_reg, REG_READ(dspbase_reg));
+		}
+
+		psb_intel_crtc_load_lut(crtc);
+
+		/* Give the overlay scaler a chance to enable
+		 * if it's on this pipe */
+		/* psb_intel_crtc_dpms_video(crtc, true); TODO */
+		break;
+	case DRM_MODE_DPMS_OFF:
+		/* Give the overlay scaler a chance to disable
+		 * if it's on this pipe */
+		/* psb_intel_crtc_dpms_video(crtc, FALSE); TODO */
+
+		/* Disable the VGA plane that we never use */
+		REG_WRITE(VGACNTRL, VGA_DISP_DISABLE);
+
+		/* Disable display plane */
+		temp = REG_READ(dspcntr_reg);
+		if ((temp & DISPLAY_PLANE_ENABLE) != 0) {
+			REG_WRITE(dspcntr_reg,
+				  temp & ~DISPLAY_PLANE_ENABLE);
+			/* Flush the plane changes */
+			REG_WRITE(dspbase_reg, REG_READ(dspbase_reg));
+			REG_READ(dspbase_reg);
+		}
+
+		/* Next, disable display pipes */
+		temp = REG_READ(pipeconf_reg);
+		if ((temp & PIPEACONF_ENABLE) != 0) {
+			REG_WRITE(pipeconf_reg, temp & ~PIPEACONF_ENABLE);
+			REG_READ(pipeconf_reg);
+		}
+
+		/* Wait for vblank for the disable to take effect. */
+		psb_intel_wait_for_vblank(dev);
+
+		temp = REG_READ(dpll_reg);
+		if ((temp & DPLL_VCO_ENABLE) != 0) {
+			REG_WRITE(dpll_reg, temp & ~DPLL_VCO_ENABLE);
+			REG_READ(dpll_reg);
+		}
+
+		/* Wait for the clocks to turn off. */
+		udelay(150);
+		break;
+	}
+
+	enabled = crtc->enabled && mode != DRM_MODE_DPMS_OFF;
+
+	/*Set FIFO Watermarks*/
+	REG_WRITE(DSPARB, 0x3F3E);
+}
+
+static void psb_intel_crtc_prepare(struct drm_crtc *crtc)
+{
+	struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
+	crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF);
+}
+
+static void psb_intel_crtc_commit(struct drm_crtc *crtc)
+{
+	struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
+	crtc_funcs->dpms(crtc, DRM_MODE_DPMS_ON);
+}
+
+void psb_intel_encoder_prepare(struct drm_encoder *encoder)
+{
+	struct drm_encoder_helper_funcs *encoder_funcs =
+	    encoder->helper_private;
+	/* lvds has its own version of prepare see psb_intel_lvds_prepare */
+	encoder_funcs->dpms(encoder, DRM_MODE_DPMS_OFF);
+}
+
+void psb_intel_encoder_commit(struct drm_encoder *encoder)
+{
+	struct drm_encoder_helper_funcs *encoder_funcs =
+	    encoder->helper_private;
+	/* lvds has its own version of commit see psb_intel_lvds_commit */
+	encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON);
+}
+
+void psb_intel_encoder_destroy(struct drm_encoder *encoder)
+{
+	struct psb_intel_encoder *intel_encoder = to_psb_intel_encoder(encoder);
+
+	drm_encoder_cleanup(encoder);
+	kfree(intel_encoder);
+}
+
+static bool psb_intel_crtc_mode_fixup(struct drm_crtc *crtc,
+				  struct drm_display_mode *mode,
+				  struct drm_display_mode *adjusted_mode)
+{
+	return true;
+}
+
+
+/**
+ * Return the pipe currently connected to the panel fitter,
+ * or -1 if the panel fitter is not present or not in use
+ */
+static int psb_intel_panel_fitter_pipe(struct drm_device *dev)
+{
+	u32 pfit_control;
+
+	pfit_control = REG_READ(PFIT_CONTROL);
+
+	/* See if the panel fitter is in use */
+	if ((pfit_control & PFIT_ENABLE) == 0)
+		return -1;
+	/* Must be on PIPE 1 for PSB */
+	return 1;
+}
+
+static int psb_intel_crtc_mode_set(struct drm_crtc *crtc,
+			       struct drm_display_mode *mode,
+			       struct drm_display_mode *adjusted_mode,
+			       int x, int y,
+			       struct drm_framebuffer *old_fb)
+{
+	struct drm_device *dev = crtc->dev;
+	struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
+	struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
+	int pipe = psb_intel_crtc->pipe;
+	int fp_reg = (pipe == 0) ? FPA0 : FPB0;
+	int dpll_reg = (pipe == 0) ? DPLL_A : DPLL_B;
+	int dspcntr_reg = (pipe == 0) ? DSPACNTR : DSPBCNTR;
+	int pipeconf_reg = (pipe == 0) ? PIPEACONF : PIPEBCONF;
+	int htot_reg = (pipe == 0) ? HTOTAL_A : HTOTAL_B;
+	int hblank_reg = (pipe == 0) ? HBLANK_A : HBLANK_B;
+	int hsync_reg = (pipe == 0) ? HSYNC_A : HSYNC_B;
+	int vtot_reg = (pipe == 0) ? VTOTAL_A : VTOTAL_B;
+	int vblank_reg = (pipe == 0) ? VBLANK_A : VBLANK_B;
+	int vsync_reg = (pipe == 0) ? VSYNC_A : VSYNC_B;
+	int dspsize_reg = (pipe == 0) ? DSPASIZE : DSPBSIZE;
+	int dsppos_reg = (pipe == 0) ? DSPAPOS : DSPBPOS;
+	int pipesrc_reg = (pipe == 0) ? PIPEASRC : PIPEBSRC;
+	int refclk;
+	struct psb_intel_clock_t clock;
+	u32 dpll = 0, fp = 0, dspcntr, pipeconf;
+	bool ok, is_sdvo = false, is_dvo = false;
+	bool is_crt = false, is_lvds = false, is_tv = false;
+	struct drm_mode_config *mode_config = &dev->mode_config;
+	struct drm_connector *connector;
+
+	/* No scan out no play */
+	if (crtc->fb == NULL) {
+		crtc_funcs->mode_set_base(crtc, x, y, old_fb);
+		return 0;
+	}
+
+	list_for_each_entry(connector, &mode_config->connector_list, head) {
+		struct psb_intel_encoder *psb_intel_encoder =
+					psb_intel_attached_encoder(connector);
+
+		if (!connector->encoder
+		    || connector->encoder->crtc != crtc)
+			continue;
+
+		switch (psb_intel_encoder->type) {
+		case INTEL_OUTPUT_LVDS:
+			is_lvds = true;
+			break;
+		case INTEL_OUTPUT_SDVO:
+			is_sdvo = true;
+			break;
+		case INTEL_OUTPUT_DVO:
+			is_dvo = true;
+			break;
+		case INTEL_OUTPUT_TVOUT:
+			is_tv = true;
+			break;
+		case INTEL_OUTPUT_ANALOG:
+			is_crt = true;
+			break;
+		}
+	}
+
+	refclk = 96000;
+
+	ok = psb_intel_find_best_PLL(crtc, adjusted_mode->clock, refclk,
+				 &clock);
+	if (!ok) {
+		dev_err(dev->dev, "Couldn't find PLL settings for mode!\n");
+		return 0;
+	}
+
+	fp = clock.n << 16 | clock.m1 << 8 | clock.m2;
+
+	dpll = DPLL_VGA_MODE_DIS;
+	if (is_lvds) {
+		dpll |= DPLLB_MODE_LVDS;
+		dpll |= DPLL_DVO_HIGH_SPEED;
+	} else
+		dpll |= DPLLB_MODE_DAC_SERIAL;
+	if (is_sdvo) {
+		int sdvo_pixel_multiply =
+			    adjusted_mode->clock / mode->clock;
+		dpll |= DPLL_DVO_HIGH_SPEED;
+		dpll |=
+		    (sdvo_pixel_multiply - 1) << SDVO_MULTIPLIER_SHIFT_HIRES;
+	}
+
+	/* compute bitmask from p1 value */
+	dpll |= (1 << (clock.p1 - 1)) << 16;
+	switch (clock.p2) {
+	case 5:
+		dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_5;
+		break;
+	case 7:
+		dpll |= DPLLB_LVDS_P2_CLOCK_DIV_7;
+		break;
+	case 10:
+		dpll |= DPLL_DAC_SERIAL_P2_CLOCK_DIV_10;
+		break;
+	case 14:
+		dpll |= DPLLB_LVDS_P2_CLOCK_DIV_14;
+		break;
+	}
+
+	if (is_tv) {
+		/* XXX: just matching BIOS for now */
+/*	dpll |= PLL_REF_INPUT_TVCLKINBC; */
+		dpll |= 3;
+	}
+	dpll |= PLL_REF_INPUT_DREFCLK;
+
+	/* setup pipeconf */
+	pipeconf = REG_READ(pipeconf_reg);
+
+	/* Set up the display plane register */
+	dspcntr = DISPPLANE_GAMMA_ENABLE;
+
+	if (pipe == 0)
+		dspcntr |= DISPPLANE_SEL_PIPE_A;
+	else
+		dspcntr |= DISPPLANE_SEL_PIPE_B;
+
+	dspcntr |= DISPLAY_PLANE_ENABLE;
+	pipeconf |= PIPEACONF_ENABLE;
+	dpll |= DPLL_VCO_ENABLE;
+
+
+	/* Disable the panel fitter if it was on our pipe */
+	if (psb_intel_panel_fitter_pipe(dev) == pipe)
+		REG_WRITE(PFIT_CONTROL, 0);
+
+	drm_mode_debug_printmodeline(mode);
+
+	if (dpll & DPLL_VCO_ENABLE) {
+		REG_WRITE(fp_reg, fp);
+		REG_WRITE(dpll_reg, dpll & ~DPLL_VCO_ENABLE);
+		REG_READ(dpll_reg);
+		udelay(150);
+	}
+
+	/* The LVDS pin pair needs to be on before the DPLLs are enabled.
+	 * This is an exception to the general rule that mode_set doesn't turn
+	 * things on.
+	 */
+	if (is_lvds) {
+		u32 lvds = REG_READ(LVDS);
+
+		lvds &= ~LVDS_PIPEB_SELECT;
+		if (pipe == 1)
+			lvds |= LVDS_PIPEB_SELECT;
+
+		lvds |= LVDS_PORT_EN | LVDS_A0A2_CLKA_POWER_UP;
+		/* Set the B0-B3 data pairs corresponding to
+		 * whether we're going to
+		 * set the DPLLs for dual-channel mode or not.
+		 */
+		lvds &= ~(LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP);
+		if (clock.p2 == 7)
+			lvds |= LVDS_B0B3_POWER_UP | LVDS_CLKB_POWER_UP;
+
+		/* It would be nice to set 24 vs 18-bit mode (LVDS_A3_POWER_UP)
+		 * appropriately here, but we need to look more
+		 * thoroughly into how panels behave in the two modes.
+		 */
+
+		REG_WRITE(LVDS, lvds);
+		REG_READ(LVDS);
+	}
+
+	REG_WRITE(fp_reg, fp);
+	REG_WRITE(dpll_reg, dpll);
+	REG_READ(dpll_reg);
+	/* Wait for the clocks to stabilize. */
+	udelay(150);
+
+	/* write it again -- the BIOS does, after all */
+	REG_WRITE(dpll_reg, dpll);
+
+	REG_READ(dpll_reg);
+	/* Wait for the clocks to stabilize. */
+	udelay(150);
+
+	REG_WRITE(htot_reg, (adjusted_mode->crtc_hdisplay - 1) |
+		  ((adjusted_mode->crtc_htotal - 1) << 16));
+	REG_WRITE(hblank_reg, (adjusted_mode->crtc_hblank_start - 1) |
+		  ((adjusted_mode->crtc_hblank_end - 1) << 16));
+	REG_WRITE(hsync_reg, (adjusted_mode->crtc_hsync_start - 1) |
+		  ((adjusted_mode->crtc_hsync_end - 1) << 16));
+	REG_WRITE(vtot_reg, (adjusted_mode->crtc_vdisplay - 1) |
+		  ((adjusted_mode->crtc_vtotal - 1) << 16));
+	REG_WRITE(vblank_reg, (adjusted_mode->crtc_vblank_start - 1) |
+		  ((adjusted_mode->crtc_vblank_end - 1) << 16));
+	REG_WRITE(vsync_reg, (adjusted_mode->crtc_vsync_start - 1) |
+		  ((adjusted_mode->crtc_vsync_end - 1) << 16));
+	/* pipesrc and dspsize control the size that is scaled from,
+	 * which should always be the user's requested size.
+	 */
+	REG_WRITE(dspsize_reg,
+		  ((mode->vdisplay - 1) << 16) | (mode->hdisplay - 1));
+	REG_WRITE(dsppos_reg, 0);
+	REG_WRITE(pipesrc_reg,
+		  ((mode->hdisplay - 1) << 16) | (mode->vdisplay - 1));
+	REG_WRITE(pipeconf_reg, pipeconf);
+	REG_READ(pipeconf_reg);
+
+	psb_intel_wait_for_vblank(dev);
+
+	REG_WRITE(dspcntr_reg, dspcntr);
+
+	/* Flush the plane changes */
+	crtc_funcs->mode_set_base(crtc, x, y, old_fb);
+
+	psb_intel_wait_for_vblank(dev);
+
+	return 0;
+}
+
+/** Loads the palette/gamma unit for the CRTC with the prepared values */
+void psb_intel_crtc_load_lut(struct drm_crtc *crtc)
+{
+	struct drm_device *dev = crtc->dev;
+	struct drm_psb_private *dev_priv =
+				(struct drm_psb_private *)dev->dev_private;
+	struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
+	int palreg = PALETTE_A;
+	int i;
+
+	/* The clocks have to be on to load the palette. */
+	if (!crtc->enabled)
+		return;
+
+	switch (psb_intel_crtc->pipe) {
+	case 0:
+		break;
+	case 1:
+		palreg = PALETTE_B;
+		break;
+	case 2:
+		palreg = PALETTE_C;
+		break;
+	default:
+		dev_err(dev->dev, "Illegal Pipe Number.\n");
+		return;
+	}
+
+	if (gma_power_begin(dev, false)) {
+		for (i = 0; i < 256; i++) {
+			REG_WRITE(palreg + 4 * i,
+				  ((psb_intel_crtc->lut_r[i] +
+				  psb_intel_crtc->lut_adj[i]) << 16) |
+				  ((psb_intel_crtc->lut_g[i] +
+				  psb_intel_crtc->lut_adj[i]) << 8) |
+				  (psb_intel_crtc->lut_b[i] +
+				  psb_intel_crtc->lut_adj[i]));
+		}
+		gma_power_end(dev);
+	} else {
+		for (i = 0; i < 256; i++) {
+			dev_priv->save_palette_a[i] =
+				  ((psb_intel_crtc->lut_r[i] +
+				  psb_intel_crtc->lut_adj[i]) << 16) |
+				  ((psb_intel_crtc->lut_g[i] +
+				  psb_intel_crtc->lut_adj[i]) << 8) |
+				  (psb_intel_crtc->lut_b[i] +
+				  psb_intel_crtc->lut_adj[i]);
+		}
+
+	}
+}
+
+/**
+ * Save HW states of giving crtc
+ */
+static void psb_intel_crtc_save(struct drm_crtc *crtc)
+{
+	struct drm_device *dev = crtc->dev;
+	/* struct drm_psb_private *dev_priv =
+			(struct drm_psb_private *)dev->dev_private; */
+	struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
+	struct psb_intel_crtc_state *crtc_state = psb_intel_crtc->crtc_state;
+	int pipeA = (psb_intel_crtc->pipe == 0);
+	uint32_t paletteReg;
+	int i;
+
+	if (!crtc_state) {
+		dev_err(dev->dev, "No CRTC state found\n");
+		return;
+	}
+
+	crtc_state->saveDSPCNTR = REG_READ(pipeA ? DSPACNTR : DSPBCNTR);
+	crtc_state->savePIPECONF = REG_READ(pipeA ? PIPEACONF : PIPEBCONF);
+	crtc_state->savePIPESRC = REG_READ(pipeA ? PIPEASRC : PIPEBSRC);
+	crtc_state->saveFP0 = REG_READ(pipeA ? FPA0 : FPB0);
+	crtc_state->saveFP1 = REG_READ(pipeA ? FPA1 : FPB1);
+	crtc_state->saveDPLL = REG_READ(pipeA ? DPLL_A : DPLL_B);
+	crtc_state->saveHTOTAL = REG_READ(pipeA ? HTOTAL_A : HTOTAL_B);
+	crtc_state->saveHBLANK = REG_READ(pipeA ? HBLANK_A : HBLANK_B);
+	crtc_state->saveHSYNC = REG_READ(pipeA ? HSYNC_A : HSYNC_B);
+	crtc_state->saveVTOTAL = REG_READ(pipeA ? VTOTAL_A : VTOTAL_B);
+	crtc_state->saveVBLANK = REG_READ(pipeA ? VBLANK_A : VBLANK_B);
+	crtc_state->saveVSYNC = REG_READ(pipeA ? VSYNC_A : VSYNC_B);
+	crtc_state->saveDSPSTRIDE = REG_READ(pipeA ? DSPASTRIDE : DSPBSTRIDE);
+
+	/*NOTE: DSPSIZE DSPPOS only for psb*/
+	crtc_state->saveDSPSIZE = REG_READ(pipeA ? DSPASIZE : DSPBSIZE);
+	crtc_state->saveDSPPOS = REG_READ(pipeA ? DSPAPOS : DSPBPOS);
+
+	crtc_state->saveDSPBASE = REG_READ(pipeA ? DSPABASE : DSPBBASE);
+
+	paletteReg = pipeA ? PALETTE_A : PALETTE_B;
+	for (i = 0; i < 256; ++i)
+		crtc_state->savePalette[i] = REG_READ(paletteReg + (i << 2));
+}
+
+/**
+ * Restore HW states of giving crtc
+ */
+static void psb_intel_crtc_restore(struct drm_crtc *crtc)
+{
+	struct drm_device *dev = crtc->dev;
+	/* struct drm_psb_private * dev_priv =
+				(struct drm_psb_private *)dev->dev_private; */
+	struct psb_intel_crtc *psb_intel_crtc =  to_psb_intel_crtc(crtc);
+	struct psb_intel_crtc_state *crtc_state = psb_intel_crtc->crtc_state;
+	/* struct drm_crtc_helper_funcs * crtc_funcs = crtc->helper_private; */
+	int pipeA = (psb_intel_crtc->pipe == 0);
+	uint32_t paletteReg;
+	int i;
+
+	if (!crtc_state) {
+		dev_err(dev->dev, "No crtc state\n");
+		return;
+	}
+
+	if (crtc_state->saveDPLL & DPLL_VCO_ENABLE) {
+		REG_WRITE(pipeA ? DPLL_A : DPLL_B,
+			crtc_state->saveDPLL & ~DPLL_VCO_ENABLE);
+		REG_READ(pipeA ? DPLL_A : DPLL_B);
+		udelay(150);
+	}
+
+	REG_WRITE(pipeA ? FPA0 : FPB0, crtc_state->saveFP0);
+	REG_READ(pipeA ? FPA0 : FPB0);
+
+	REG_WRITE(pipeA ? FPA1 : FPB1, crtc_state->saveFP1);
+	REG_READ(pipeA ? FPA1 : FPB1);
+
+	REG_WRITE(pipeA ? DPLL_A : DPLL_B, crtc_state->saveDPLL);
+	REG_READ(pipeA ? DPLL_A : DPLL_B);
+	udelay(150);
+
+	REG_WRITE(pipeA ? HTOTAL_A : HTOTAL_B, crtc_state->saveHTOTAL);
+	REG_WRITE(pipeA ? HBLANK_A : HBLANK_B, crtc_state->saveHBLANK);
+	REG_WRITE(pipeA ? HSYNC_A : HSYNC_B, crtc_state->saveHSYNC);
+	REG_WRITE(pipeA ? VTOTAL_A : VTOTAL_B, crtc_state->saveVTOTAL);
+	REG_WRITE(pipeA ? VBLANK_A : VBLANK_B, crtc_state->saveVBLANK);
+	REG_WRITE(pipeA ? VSYNC_A : VSYNC_B, crtc_state->saveVSYNC);
+	REG_WRITE(pipeA ? DSPASTRIDE : DSPBSTRIDE, crtc_state->saveDSPSTRIDE);
+
+	REG_WRITE(pipeA ? DSPASIZE : DSPBSIZE, crtc_state->saveDSPSIZE);
+	REG_WRITE(pipeA ? DSPAPOS : DSPBPOS, crtc_state->saveDSPPOS);
+
+	REG_WRITE(pipeA ? PIPEASRC : PIPEBSRC, crtc_state->savePIPESRC);
+	REG_WRITE(pipeA ? DSPABASE : DSPBBASE, crtc_state->saveDSPBASE);
+	REG_WRITE(pipeA ? PIPEACONF : PIPEBCONF, crtc_state->savePIPECONF);
+
+	psb_intel_wait_for_vblank(dev);
+
+	REG_WRITE(pipeA ? DSPACNTR : DSPBCNTR, crtc_state->saveDSPCNTR);
+	REG_WRITE(pipeA ? DSPABASE : DSPBBASE, crtc_state->saveDSPBASE);
+
+	psb_intel_wait_for_vblank(dev);
+
+	paletteReg = pipeA ? PALETTE_A : PALETTE_B;
+	for (i = 0; i < 256; ++i)
+		REG_WRITE(paletteReg + (i << 2), crtc_state->savePalette[i]);
+}
+
+static int psb_intel_crtc_cursor_set(struct drm_crtc *crtc,
+				 struct drm_file *file_priv,
+				 uint32_t handle,
+				 uint32_t width, uint32_t height)
+{
+	struct drm_device *dev = crtc->dev;
+	struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
+	int pipe = psb_intel_crtc->pipe;
+	uint32_t control = (pipe == 0) ? CURACNTR : CURBCNTR;
+	uint32_t base = (pipe == 0) ? CURABASE : CURBBASE;
+	uint32_t temp;
+	size_t addr = 0;
+	struct gtt_range *gt;
+	struct drm_gem_object *obj;
+	int ret;
+
+	/* if we want to turn of the cursor ignore width and height */
+	if (!handle) {
+		/* turn off the cursor */
+		temp = CURSOR_MODE_DISABLE;
+
+		if (gma_power_begin(dev, false)) {
+			REG_WRITE(control, temp);
+			REG_WRITE(base, 0);
+			gma_power_end(dev);
+		}
+
+		/* Unpin the old GEM object */
+		if (psb_intel_crtc->cursor_obj) {
+			gt = container_of(psb_intel_crtc->cursor_obj,
+							struct gtt_range, gem);
+			psb_gtt_unpin(gt);
+			drm_gem_object_unreference(psb_intel_crtc->cursor_obj);
+			psb_intel_crtc->cursor_obj = NULL;
+		}
+
+		return 0;
+	}
+
+	/* Currently we only support 64x64 cursors */
+	if (width != 64 || height != 64) {
+		dev_dbg(dev->dev, "we currently only support 64x64 cursors\n");
+		return -EINVAL;
+	}
+
+	obj = drm_gem_object_lookup(dev, file_priv, handle);
+	if (!obj)
+		return -ENOENT;
+
+	if (obj->size < width * height * 4) {
+		dev_dbg(dev->dev, "buffer is to small\n");
+		return -ENOMEM;
+	}
+
+	gt = container_of(obj, struct gtt_range, gem);
+
+	/* Pin the memory into the GTT */
+	ret = psb_gtt_pin(gt);
+	if (ret) {
+		dev_err(dev->dev, "Can not pin down handle 0x%x\n", handle);
+		return ret;
+	}
+
+
+	addr = gt->offset;	/* Or resource.start ??? */
+
+	psb_intel_crtc->cursor_addr = addr;
+
+	temp = 0;
+	/* set the pipe for the cursor */
+	temp |= (pipe << 28);
+	temp |= CURSOR_MODE_64_ARGB_AX | MCURSOR_GAMMA_ENABLE;
+
+	if (gma_power_begin(dev, false)) {
+		REG_WRITE(control, temp);
+		REG_WRITE(base, addr);
+		gma_power_end(dev);
+	}
+
+	/* unpin the old bo */
+	if (psb_intel_crtc->cursor_obj) {
+		gt = container_of(psb_intel_crtc->cursor_obj,
+							struct gtt_range, gem);
+		psb_gtt_unpin(gt);
+		drm_gem_object_unreference(psb_intel_crtc->cursor_obj);
+		psb_intel_crtc->cursor_obj = obj;
+	}
+	return 0;
+}
+
+static int psb_intel_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
+{
+	struct drm_device *dev = crtc->dev;
+	struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
+	int pipe = psb_intel_crtc->pipe;
+	uint32_t temp = 0;
+	uint32_t addr;
+
+
+	if (x < 0) {
+		temp |= (CURSOR_POS_SIGN << CURSOR_X_SHIFT);
+		x = -x;
+	}
+	if (y < 0) {
+		temp |= (CURSOR_POS_SIGN << CURSOR_Y_SHIFT);
+		y = -y;
+	}
+
+	temp |= ((x & CURSOR_POS_MASK) << CURSOR_X_SHIFT);
+	temp |= ((y & CURSOR_POS_MASK) << CURSOR_Y_SHIFT);
+
+	addr = psb_intel_crtc->cursor_addr;
+
+	if (gma_power_begin(dev, false)) {
+		REG_WRITE((pipe == 0) ? CURAPOS : CURBPOS, temp);
+		REG_WRITE((pipe == 0) ? CURABASE : CURBBASE, addr);
+		gma_power_end(dev);
+	}
+	return 0;
+}
+
+void psb_intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red,
+			 u16 *green, u16 *blue, uint32_t type, uint32_t size)
+{
+	struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
+	int i;
+
+	if (size != 256)
+		return;
+
+	for (i = 0; i < 256; i++) {
+		psb_intel_crtc->lut_r[i] = red[i] >> 8;
+		psb_intel_crtc->lut_g[i] = green[i] >> 8;
+		psb_intel_crtc->lut_b[i] = blue[i] >> 8;
+	}
+
+	psb_intel_crtc_load_lut(crtc);
+}
+
+static int psb_crtc_set_config(struct drm_mode_set *set)
+{
+	int ret;
+	struct drm_device *dev = set->crtc->dev;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+
+	if (!dev_priv->rpm_enabled)
+		return drm_crtc_helper_set_config(set);
+
+	pm_runtime_forbid(&dev->pdev->dev);
+	ret = drm_crtc_helper_set_config(set);
+	pm_runtime_allow(&dev->pdev->dev);
+	return ret;
+}
+
+/* Returns the clock of the currently programmed mode of the given pipe. */
+static int psb_intel_crtc_clock_get(struct drm_device *dev,
+				struct drm_crtc *crtc)
+{
+	struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
+	int pipe = psb_intel_crtc->pipe;
+	u32 dpll;
+	u32 fp;
+	struct psb_intel_clock_t clock;
+	bool is_lvds;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+
+	if (gma_power_begin(dev, false)) {
+		dpll = REG_READ((pipe == 0) ? DPLL_A : DPLL_B);
+		if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0)
+			fp = REG_READ((pipe == 0) ? FPA0 : FPB0);
+		else
+			fp = REG_READ((pipe == 0) ? FPA1 : FPB1);
+		is_lvds = (pipe == 1) && (REG_READ(LVDS) & LVDS_PORT_EN);
+		gma_power_end(dev);
+	} else {
+		dpll = (pipe == 0) ?
+			dev_priv->saveDPLL_A : dev_priv->saveDPLL_B;
+
+		if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0)
+			fp = (pipe == 0) ?
+				dev_priv->saveFPA0 :
+				dev_priv->saveFPB0;
+		else
+			fp = (pipe == 0) ?
+				dev_priv->saveFPA1 :
+				dev_priv->saveFPB1;
+
+		is_lvds = (pipe == 1) && (dev_priv->saveLVDS & LVDS_PORT_EN);
+	}
+
+	clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT;
+	clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT;
+	clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT;
+
+	if (is_lvds) {
+		clock.p1 =
+		    ffs((dpll &
+			 DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >>
+			DPLL_FPA01_P1_POST_DIV_SHIFT);
+		clock.p2 = 14;
+
+		if ((dpll & PLL_REF_INPUT_MASK) ==
+		    PLLB_REF_INPUT_SPREADSPECTRUMIN) {
+			/* XXX: might not be 66MHz */
+			i8xx_clock(66000, &clock);
+		} else
+			i8xx_clock(48000, &clock);
+	} else {
+		if (dpll & PLL_P1_DIVIDE_BY_TWO)
+			clock.p1 = 2;
+		else {
+			clock.p1 =
+			    ((dpll &
+			      DPLL_FPA01_P1_POST_DIV_MASK_I830) >>
+			     DPLL_FPA01_P1_POST_DIV_SHIFT) + 2;
+		}
+		if (dpll & PLL_P2_DIVIDE_BY_4)
+			clock.p2 = 4;
+		else
+			clock.p2 = 2;
+
+		i8xx_clock(48000, &clock);
+	}
+
+	/* XXX: It would be nice to validate the clocks, but we can't reuse
+	 * i830PllIsValid() because it relies on the xf86_config connector
+	 * configuration being accurate, which it isn't necessarily.
+	 */
+
+	return clock.dot;
+}
+
+/** Returns the currently programmed mode of the given pipe. */
+struct drm_display_mode *psb_intel_crtc_mode_get(struct drm_device *dev,
+					     struct drm_crtc *crtc)
+{
+	struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
+	int pipe = psb_intel_crtc->pipe;
+	struct drm_display_mode *mode;
+	int htot;
+	int hsync;
+	int vtot;
+	int vsync;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+
+	if (gma_power_begin(dev, false)) {
+		htot = REG_READ((pipe == 0) ? HTOTAL_A : HTOTAL_B);
+		hsync = REG_READ((pipe == 0) ? HSYNC_A : HSYNC_B);
+		vtot = REG_READ((pipe == 0) ? VTOTAL_A : VTOTAL_B);
+		vsync = REG_READ((pipe == 0) ? VSYNC_A : VSYNC_B);
+		gma_power_end(dev);
+	} else {
+		htot = (pipe == 0) ?
+			dev_priv->saveHTOTAL_A : dev_priv->saveHTOTAL_B;
+		hsync = (pipe == 0) ?
+			dev_priv->saveHSYNC_A : dev_priv->saveHSYNC_B;
+		vtot = (pipe == 0) ?
+			dev_priv->saveVTOTAL_A : dev_priv->saveVTOTAL_B;
+		vsync = (pipe == 0) ?
+			dev_priv->saveVSYNC_A : dev_priv->saveVSYNC_B;
+	}
+
+	mode = kzalloc(sizeof(*mode), GFP_KERNEL);
+	if (!mode)
+		return NULL;
+
+	mode->clock = psb_intel_crtc_clock_get(dev, crtc);
+	mode->hdisplay = (htot & 0xffff) + 1;
+	mode->htotal = ((htot & 0xffff0000) >> 16) + 1;
+	mode->hsync_start = (hsync & 0xffff) + 1;
+	mode->hsync_end = ((hsync & 0xffff0000) >> 16) + 1;
+	mode->vdisplay = (vtot & 0xffff) + 1;
+	mode->vtotal = ((vtot & 0xffff0000) >> 16) + 1;
+	mode->vsync_start = (vsync & 0xffff) + 1;
+	mode->vsync_end = ((vsync & 0xffff0000) >> 16) + 1;
+
+	drm_mode_set_name(mode);
+	drm_mode_set_crtcinfo(mode, 0);
+
+	return mode;
+}
+
+void psb_intel_crtc_destroy(struct drm_crtc *crtc)
+{
+	struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
+	struct gtt_range *gt;
+
+	/* Unpin the old GEM object */
+	if (psb_intel_crtc->cursor_obj) {
+		gt = container_of(psb_intel_crtc->cursor_obj,
+						struct gtt_range, gem);
+		psb_gtt_unpin(gt);
+		drm_gem_object_unreference(psb_intel_crtc->cursor_obj);
+		psb_intel_crtc->cursor_obj = NULL;
+	}
+	kfree(psb_intel_crtc->crtc_state);
+	drm_crtc_cleanup(crtc);
+	kfree(psb_intel_crtc);
+}
+
+const struct drm_crtc_helper_funcs psb_intel_helper_funcs = {
+	.dpms = psb_intel_crtc_dpms,
+	.mode_fixup = psb_intel_crtc_mode_fixup,
+	.mode_set = psb_intel_crtc_mode_set,
+	.mode_set_base = psb_intel_pipe_set_base,
+	.prepare = psb_intel_crtc_prepare,
+	.commit = psb_intel_crtc_commit,
+};
+
+const struct drm_crtc_funcs psb_intel_crtc_funcs = {
+	.save = psb_intel_crtc_save,
+	.restore = psb_intel_crtc_restore,
+	.cursor_set = psb_intel_crtc_cursor_set,
+	.cursor_move = psb_intel_crtc_cursor_move,
+	.gamma_set = psb_intel_crtc_gamma_set,
+	.set_config = psb_crtc_set_config,
+	.destroy = psb_intel_crtc_destroy,
+};
+
+/*
+ * Set the default value of cursor control and base register
+ * to zero. This is a workaround for h/w defect on Oaktrail
+ */
+static void psb_intel_cursor_init(struct drm_device *dev, int pipe)
+{
+	u32 control[3] = { CURACNTR, CURBCNTR, CURCCNTR };
+	u32 base[3] = { CURABASE, CURBBASE, CURCBASE };
+
+	REG_WRITE(control[pipe], 0);
+	REG_WRITE(base[pipe], 0);
+}
+
+void psb_intel_crtc_init(struct drm_device *dev, int pipe,
+		     struct psb_intel_mode_device *mode_dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct psb_intel_crtc *psb_intel_crtc;
+	int i;
+	uint16_t *r_base, *g_base, *b_base;
+
+	/* We allocate a extra array of drm_connector pointers
+	 * for fbdev after the crtc */
+	psb_intel_crtc =
+	    kzalloc(sizeof(struct psb_intel_crtc) +
+		    (INTELFB_CONN_LIMIT * sizeof(struct drm_connector *)),
+		    GFP_KERNEL);
+	if (psb_intel_crtc == NULL)
+		return;
+
+	psb_intel_crtc->crtc_state =
+		kzalloc(sizeof(struct psb_intel_crtc_state), GFP_KERNEL);
+	if (!psb_intel_crtc->crtc_state) {
+		dev_err(dev->dev, "Crtc state error: No memory\n");
+		kfree(psb_intel_crtc);
+		return;
+	}
+
+	/* Set the CRTC operations from the chip specific data */
+	drm_crtc_init(dev, &psb_intel_crtc->base, dev_priv->ops->crtc_funcs);
+
+	drm_mode_crtc_set_gamma_size(&psb_intel_crtc->base, 256);
+	psb_intel_crtc->pipe = pipe;
+	psb_intel_crtc->plane = pipe;
+
+	r_base = psb_intel_crtc->base.gamma_store;
+	g_base = r_base + 256;
+	b_base = g_base + 256;
+	for (i = 0; i < 256; i++) {
+		psb_intel_crtc->lut_r[i] = i;
+		psb_intel_crtc->lut_g[i] = i;
+		psb_intel_crtc->lut_b[i] = i;
+		r_base[i] = i << 8;
+		g_base[i] = i << 8;
+		b_base[i] = i << 8;
+
+		psb_intel_crtc->lut_adj[i] = 0;
+	}
+
+	psb_intel_crtc->mode_dev = mode_dev;
+	psb_intel_crtc->cursor_addr = 0;
+
+	drm_crtc_helper_add(&psb_intel_crtc->base,
+						dev_priv->ops->crtc_helper);
+
+	/* Setup the array of drm_connector pointer array */
+	psb_intel_crtc->mode_set.crtc = &psb_intel_crtc->base;
+	BUG_ON(pipe >= ARRAY_SIZE(dev_priv->plane_to_crtc_mapping) ||
+	       dev_priv->plane_to_crtc_mapping[psb_intel_crtc->plane] != NULL);
+	dev_priv->plane_to_crtc_mapping[psb_intel_crtc->plane] =
+							&psb_intel_crtc->base;
+	dev_priv->pipe_to_crtc_mapping[psb_intel_crtc->pipe] =
+							&psb_intel_crtc->base;
+	psb_intel_crtc->mode_set.connectors =
+	    (struct drm_connector **) (psb_intel_crtc + 1);
+	psb_intel_crtc->mode_set.num_connectors = 0;
+	psb_intel_cursor_init(dev, pipe);
+}
+
+int psb_intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
+				struct drm_file *file_priv)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct drm_psb_get_pipe_from_crtc_id_arg *pipe_from_crtc_id = data;
+	struct drm_mode_object *drmmode_obj;
+	struct psb_intel_crtc *crtc;
+
+	if (!dev_priv) {
+		dev_err(dev->dev, "called with no initialization\n");
+		return -EINVAL;
+	}
+
+	drmmode_obj = drm_mode_object_find(dev, pipe_from_crtc_id->crtc_id,
+			DRM_MODE_OBJECT_CRTC);
+
+	if (!drmmode_obj) {
+		dev_err(dev->dev, "no such CRTC id\n");
+		return -EINVAL;
+	}
+
+	crtc = to_psb_intel_crtc(obj_to_crtc(drmmode_obj));
+	pipe_from_crtc_id->pipe = crtc->pipe;
+
+	return 0;
+}
+
+struct drm_crtc *psb_intel_get_crtc_from_pipe(struct drm_device *dev, int pipe)
+{
+	struct drm_crtc *crtc = NULL;
+
+	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+		struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
+		if (psb_intel_crtc->pipe == pipe)
+			break;
+	}
+	return crtc;
+}
+
+int psb_intel_connector_clones(struct drm_device *dev, int type_mask)
+{
+	int index_mask = 0;
+	struct drm_connector *connector;
+	int entry = 0;
+
+	list_for_each_entry(connector, &dev->mode_config.connector_list,
+			    head) {
+		struct psb_intel_encoder *psb_intel_encoder =
+					psb_intel_attached_encoder(connector);
+		if (type_mask & (1 << psb_intel_encoder->type))
+			index_mask |= (1 << entry);
+		entry++;
+	}
+	return index_mask;
+}
+
+
+void psb_intel_modeset_cleanup(struct drm_device *dev)
+{
+	drm_mode_config_cleanup(dev);
+}
+
+
+/* current intel driver doesn't take advantage of encoders
+   always give back the encoder for the connector
+*/
+struct drm_encoder *psb_intel_best_encoder(struct drm_connector *connector)
+{
+	struct psb_intel_encoder *psb_intel_encoder =
+					psb_intel_attached_encoder(connector);
+
+	return &psb_intel_encoder->base;
+}
+
+void psb_intel_connector_attach_encoder(struct psb_intel_connector *connector,
+					struct psb_intel_encoder *encoder)
+{
+	connector->encoder = encoder;
+	drm_mode_connector_attach_encoder(&connector->base,
+					  &encoder->base);
+}
diff --git a/drivers/gpu/drm/gma500/psb_intel_display.h b/drivers/gpu/drm/gma500/psb_intel_display.h
new file mode 100644
index 000000000000..535b49a5e409
--- /dev/null
+++ b/drivers/gpu/drm/gma500/psb_intel_display.h
@@ -0,0 +1,28 @@
+/* copyright (c) 2008, Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Authors:
+ * Eric Anholt <eric@anholt.net>
+ */
+
+#ifndef _INTEL_DISPLAY_H_
+#define _INTEL_DISPLAY_H_
+
+bool psb_intel_pipe_has_type(struct drm_crtc *crtc, int type);
+void psb_intel_crtc_gamma_set(struct drm_crtc *crtc, u16 *red,
+			 u16 *green, u16 *blue, uint32_t type, uint32_t size);
+void psb_intel_crtc_destroy(struct drm_crtc *crtc);
+
+#endif
diff --git a/drivers/gpu/drm/gma500/psb_intel_drv.h b/drivers/gpu/drm/gma500/psb_intel_drv.h
new file mode 100644
index 000000000000..f40535e56689
--- /dev/null
+++ b/drivers/gpu/drm/gma500/psb_intel_drv.h
@@ -0,0 +1,289 @@
+/*
+ * Copyright (c) 2009-2011, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+#ifndef __INTEL_DRV_H__
+#define __INTEL_DRV_H__
+
+#include <linux/i2c.h>
+#include <linux/i2c-algo-bit.h>
+#include <drm/drm_crtc.h>
+#include <drm/drm_crtc_helper.h>
+#include <linux/gpio.h>
+
+/*
+ * Display related stuff
+ */
+
+/* store information about an Ixxx DVO */
+/* The i830->i865 use multiple DVOs with multiple i2cs */
+/* the i915, i945 have a single sDVO i2c bus - which is different */
+#define MAX_OUTPUTS 6
+/* maximum connectors per crtcs in the mode set */
+#define INTELFB_CONN_LIMIT 4
+
+#define INTEL_I2C_BUS_DVO 1
+#define INTEL_I2C_BUS_SDVO 2
+
+/* Intel Pipe Clone Bit */
+#define INTEL_HDMIB_CLONE_BIT 1
+#define INTEL_HDMIC_CLONE_BIT 2
+#define INTEL_HDMID_CLONE_BIT 3
+#define INTEL_HDMIE_CLONE_BIT 4
+#define INTEL_HDMIF_CLONE_BIT 5
+#define INTEL_SDVO_NON_TV_CLONE_BIT 6
+#define INTEL_SDVO_TV_CLONE_BIT 7
+#define INTEL_SDVO_LVDS_CLONE_BIT 8
+#define INTEL_ANALOG_CLONE_BIT 9
+#define INTEL_TV_CLONE_BIT 10
+#define INTEL_DP_B_CLONE_BIT 11
+#define INTEL_DP_C_CLONE_BIT 12
+#define INTEL_DP_D_CLONE_BIT 13
+#define INTEL_LVDS_CLONE_BIT 14
+#define INTEL_DVO_TMDS_CLONE_BIT 15
+#define INTEL_DVO_LVDS_CLONE_BIT 16
+#define INTEL_EDP_CLONE_BIT 17
+
+/* these are outputs from the chip - integrated only
+ * external chips are via DVO or SDVO output */
+#define INTEL_OUTPUT_UNUSED 0
+#define INTEL_OUTPUT_ANALOG 1
+#define INTEL_OUTPUT_DVO 2
+#define INTEL_OUTPUT_SDVO 3
+#define INTEL_OUTPUT_LVDS 4
+#define INTEL_OUTPUT_TVOUT 5
+#define INTEL_OUTPUT_HDMI 6
+#define INTEL_OUTPUT_MIPI 7
+#define INTEL_OUTPUT_MIPI2 8
+
+#define INTEL_DVO_CHIP_NONE 0
+#define INTEL_DVO_CHIP_LVDS 1
+#define INTEL_DVO_CHIP_TMDS 2
+#define INTEL_DVO_CHIP_TVOUT 4
+
+#define INTEL_MODE_PIXEL_MULTIPLIER_SHIFT (0x0)
+#define INTEL_MODE_PIXEL_MULTIPLIER_MASK (0xf << INTEL_MODE_PIXEL_MULTIPLIER_SHIFT)
+
+static inline void
+psb_intel_mode_set_pixel_multiplier(struct drm_display_mode *mode,
+				int multiplier)
+{
+	mode->clock *= multiplier;
+	mode->private_flags |= multiplier;
+}
+
+static inline int
+psb_intel_mode_get_pixel_multiplier(const struct drm_display_mode *mode)
+{
+	return (mode->private_flags & INTEL_MODE_PIXEL_MULTIPLIER_MASK)
+	       >> INTEL_MODE_PIXEL_MULTIPLIER_SHIFT;
+}
+
+
+/*
+ * Hold information useally put on the device driver privates here,
+ * since it needs to be shared across multiple of devices drivers privates.
+ */
+struct psb_intel_mode_device {
+
+	/*
+	 * Abstracted memory manager operations
+	 */
+	 size_t(*bo_offset) (struct drm_device *dev, void *bo);
+
+	/*
+	 * Cursor (Can go ?)
+	 */
+	int cursor_needs_physical;
+
+	/*
+	 * LVDS info
+	 */
+	int backlight_duty_cycle;	/* restore backlight to this value */
+	bool panel_wants_dither;
+	struct drm_display_mode *panel_fixed_mode;
+	struct drm_display_mode *panel_fixed_mode2;
+	struct drm_display_mode *vbt_mode;	/* if any */
+
+	uint32_t saveBLC_PWM_CTL;
+};
+
+struct psb_intel_i2c_chan {
+	/* for getting at dev. private (mmio etc.) */
+	struct drm_device *drm_dev;
+	u32 reg;		/* GPIO reg */
+	struct i2c_adapter adapter;
+	struct i2c_algo_bit_data algo;
+	u8 slave_addr;
+};
+
+struct psb_intel_encoder {
+	struct drm_encoder base;
+	int type;
+	bool needs_tv_clock;
+	void (*hot_plug)(struct psb_intel_encoder *);
+	int crtc_mask;
+	int clone_mask;
+	void *dev_priv; /* For sdvo_priv, lvds_priv, etc... */
+
+	/* FIXME: Either make SDVO and LVDS store it's i2c here or give CDV it's
+	   own set of output privates */
+	struct psb_intel_i2c_chan *i2c_bus;
+	struct psb_intel_i2c_chan *ddc_bus;
+};
+
+struct psb_intel_connector {
+	struct drm_connector base;
+	struct psb_intel_encoder *encoder;
+};
+
+struct psb_intel_crtc_state {
+	uint32_t saveDSPCNTR;
+	uint32_t savePIPECONF;
+	uint32_t savePIPESRC;
+	uint32_t saveDPLL;
+	uint32_t saveFP0;
+	uint32_t saveFP1;
+	uint32_t saveHTOTAL;
+	uint32_t saveHBLANK;
+	uint32_t saveHSYNC;
+	uint32_t saveVTOTAL;
+	uint32_t saveVBLANK;
+	uint32_t saveVSYNC;
+	uint32_t saveDSPSTRIDE;
+	uint32_t saveDSPSIZE;
+	uint32_t saveDSPPOS;
+	uint32_t saveDSPBASE;
+	uint32_t savePalette[256];
+};
+
+struct psb_intel_crtc {
+	struct drm_crtc base;
+	int pipe;
+	int plane;
+	uint32_t cursor_addr;
+	u8 lut_r[256], lut_g[256], lut_b[256];
+	u8 lut_adj[256];
+	struct psb_intel_framebuffer *fbdev_fb;
+	/* a mode_set for fbdev users on this crtc */
+	struct drm_mode_set mode_set;
+
+	/* GEM object that holds our cursor */
+	struct drm_gem_object *cursor_obj;
+
+	struct drm_display_mode saved_mode;
+	struct drm_display_mode saved_adjusted_mode;
+
+	struct psb_intel_mode_device *mode_dev;
+
+	/*crtc mode setting flags*/
+	u32 mode_flags;
+
+	/* Saved Crtc HW states */
+	struct psb_intel_crtc_state *crtc_state;
+};
+
+#define to_psb_intel_crtc(x)	\
+		container_of(x, struct psb_intel_crtc, base)
+#define to_psb_intel_connector(x) \
+		container_of(x, struct psb_intel_connector, base)
+#define to_psb_intel_encoder(x)	\
+		container_of(x, struct psb_intel_encoder, base)
+#define to_psb_intel_framebuffer(x)	\
+		container_of(x, struct psb_intel_framebuffer, base)
+
+struct psb_intel_i2c_chan *psb_intel_i2c_create(struct drm_device *dev,
+					const u32 reg, const char *name);
+void psb_intel_i2c_destroy(struct psb_intel_i2c_chan *chan);
+int psb_intel_ddc_get_modes(struct drm_connector *connector,
+			    struct i2c_adapter *adapter);
+extern bool psb_intel_ddc_probe(struct i2c_adapter *adapter);
+
+extern void psb_intel_crtc_init(struct drm_device *dev, int pipe,
+			    struct psb_intel_mode_device *mode_dev);
+extern void psb_intel_crt_init(struct drm_device *dev);
+extern bool psb_intel_sdvo_init(struct drm_device *dev, int output_device);
+extern void psb_intel_dvo_init(struct drm_device *dev);
+extern void psb_intel_tv_init(struct drm_device *dev);
+extern void psb_intel_lvds_init(struct drm_device *dev,
+			    struct psb_intel_mode_device *mode_dev);
+extern void psb_intel_lvds_set_brightness(struct drm_device *dev, int level);
+extern void oaktrail_lvds_init(struct drm_device *dev,
+			   struct psb_intel_mode_device *mode_dev);
+extern void oaktrail_wait_for_INTR_PKT_SENT(struct drm_device *dev);
+extern void oaktrail_dsi_init(struct drm_device *dev,
+			   struct psb_intel_mode_device *mode_dev);
+extern void mid_dsi_init(struct drm_device *dev,
+		    struct psb_intel_mode_device *mode_dev, int dsi_num);
+
+extern void psb_intel_crtc_load_lut(struct drm_crtc *crtc);
+extern void psb_intel_encoder_prepare(struct drm_encoder *encoder);
+extern void psb_intel_encoder_commit(struct drm_encoder *encoder);
+extern void psb_intel_encoder_destroy(struct drm_encoder *encoder);
+
+static inline struct psb_intel_encoder *psb_intel_attached_encoder(
+						struct drm_connector *connector)
+{
+	return to_psb_intel_connector(connector)->encoder;
+}
+
+extern void psb_intel_connector_attach_encoder(
+					struct psb_intel_connector *connector,
+					struct psb_intel_encoder *encoder);
+
+extern struct drm_encoder *psb_intel_best_encoder(struct drm_connector
+					      *connector);
+
+extern struct drm_display_mode *psb_intel_crtc_mode_get(struct drm_device *dev,
+						    struct drm_crtc *crtc);
+extern void psb_intel_wait_for_vblank(struct drm_device *dev);
+extern int psb_intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
+				struct drm_file *file_priv);
+extern struct drm_crtc *psb_intel_get_crtc_from_pipe(struct drm_device *dev,
+						 int pipe);
+extern struct drm_connector *psb_intel_sdvo_find(struct drm_device *dev,
+					     int sdvoB);
+extern int psb_intel_sdvo_supports_hotplug(struct drm_connector *connector);
+extern void psb_intel_sdvo_set_hotplug(struct drm_connector *connector,
+				   int enable);
+extern int intelfb_probe(struct drm_device *dev);
+extern int intelfb_remove(struct drm_device *dev,
+			  struct drm_framebuffer *fb);
+extern struct drm_framebuffer *psb_intel_framebuffer_create(struct drm_device
+							*dev, struct
+							drm_mode_fb_cmd
+							*mode_cmd,
+							void *mm_private);
+extern bool psb_intel_lvds_mode_fixup(struct drm_encoder *encoder,
+				      struct drm_display_mode *mode,
+				      struct drm_display_mode *adjusted_mode);
+extern int psb_intel_lvds_mode_valid(struct drm_connector *connector,
+				     struct drm_display_mode *mode);
+extern int psb_intel_lvds_set_property(struct drm_connector *connector,
+					struct drm_property *property,
+					uint64_t value);
+extern void psb_intel_lvds_destroy(struct drm_connector *connector);
+extern const struct drm_encoder_funcs psb_intel_lvds_enc_funcs;
+
+/* intel_gmbus.c */
+extern void gma_intel_i2c_reset(struct drm_device *dev);
+extern int gma_intel_setup_gmbus(struct drm_device *dev);
+extern void gma_intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
+extern void gma_intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
+extern void gma_intel_teardown_gmbus(struct drm_device *dev);
+
+#endif				/* __INTEL_DRV_H__ */
diff --git a/drivers/gpu/drm/gma500/psb_intel_lvds.c b/drivers/gpu/drm/gma500/psb_intel_lvds.c
new file mode 100644
index 000000000000..a25e4ca5e91c
--- /dev/null
+++ b/drivers/gpu/drm/gma500/psb_intel_lvds.c
@@ -0,0 +1,868 @@
+/*
+ * Copyright © 2006-2007 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Authors:
+ *	Eric Anholt <eric@anholt.net>
+ *	Dave Airlie <airlied@linux.ie>
+ *	Jesse Barnes <jesse.barnes@intel.com>
+ */
+
+#include <linux/i2c.h>
+#include <drm/drmP.h>
+
+#include "intel_bios.h"
+#include "psb_drv.h"
+#include "psb_intel_drv.h"
+#include "psb_intel_reg.h"
+#include "power.h"
+#include <linux/pm_runtime.h>
+
+/*
+ * LVDS I2C backlight control macros
+ */
+#define BRIGHTNESS_MAX_LEVEL 100
+#define BRIGHTNESS_MASK 0xFF
+#define BLC_I2C_TYPE	0x01
+#define BLC_PWM_TYPT	0x02
+
+#define BLC_POLARITY_NORMAL 0
+#define BLC_POLARITY_INVERSE 1
+
+#define PSB_BLC_MAX_PWM_REG_FREQ       (0xFFFE)
+#define PSB_BLC_MIN_PWM_REG_FREQ	(0x2)
+#define PSB_BLC_PWM_PRECISION_FACTOR	(10)
+#define PSB_BACKLIGHT_PWM_CTL_SHIFT	(16)
+#define PSB_BACKLIGHT_PWM_POLARITY_BIT_CLEAR (0xFFFE)
+
+struct psb_intel_lvds_priv {
+	/*
+	 * Saved LVDO output states
+	 */
+	uint32_t savePP_ON;
+	uint32_t savePP_OFF;
+	uint32_t saveLVDS;
+	uint32_t savePP_CONTROL;
+	uint32_t savePP_CYCLE;
+	uint32_t savePFIT_CONTROL;
+	uint32_t savePFIT_PGM_RATIOS;
+	uint32_t saveBLC_PWM_CTL;
+
+	struct psb_intel_i2c_chan *i2c_bus;
+	struct psb_intel_i2c_chan *ddc_bus;
+};
+
+
+/*
+ * Returns the maximum level of the backlight duty cycle field.
+ */
+static u32 psb_intel_lvds_get_max_backlight(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	u32 ret;
+
+	if (gma_power_begin(dev, false)) {
+		ret = REG_READ(BLC_PWM_CTL);
+		gma_power_end(dev);
+	} else /* Powered off, use the saved value */
+		ret = dev_priv->saveBLC_PWM_CTL;
+
+	/* Top 15bits hold the frequency mask */
+	ret = (ret &  BACKLIGHT_MODULATION_FREQ_MASK) >>
+					BACKLIGHT_MODULATION_FREQ_SHIFT;
+
+        ret *= 2;	/* Return a 16bit range as needed for setting */
+        if (ret == 0)
+                dev_err(dev->dev, "BL bug: Reg %08x save %08X\n",
+                        REG_READ(BLC_PWM_CTL), dev_priv->saveBLC_PWM_CTL);
+	return ret;
+}
+
+/*
+ * Set LVDS backlight level by I2C command
+ *
+ * FIXME: at some point we need to both track this for PM and also
+ * disable runtime pm on MRST if the brightness is nil (ie blanked)
+ */
+static int psb_lvds_i2c_set_brightness(struct drm_device *dev,
+					unsigned int level)
+{
+	struct drm_psb_private *dev_priv =
+		(struct drm_psb_private *)dev->dev_private;
+
+	struct psb_intel_i2c_chan *lvds_i2c_bus = dev_priv->lvds_i2c_bus;
+	u8 out_buf[2];
+	unsigned int blc_i2c_brightness;
+
+	struct i2c_msg msgs[] = {
+		{
+			.addr = lvds_i2c_bus->slave_addr,
+			.flags = 0,
+			.len = 2,
+			.buf = out_buf,
+		}
+	};
+
+	blc_i2c_brightness = BRIGHTNESS_MASK & ((unsigned int)level *
+			     BRIGHTNESS_MASK /
+			     BRIGHTNESS_MAX_LEVEL);
+
+	if (dev_priv->lvds_bl->pol == BLC_POLARITY_INVERSE)
+		blc_i2c_brightness = BRIGHTNESS_MASK - blc_i2c_brightness;
+
+	out_buf[0] = dev_priv->lvds_bl->brightnesscmd;
+	out_buf[1] = (u8)blc_i2c_brightness;
+
+	if (i2c_transfer(&lvds_i2c_bus->adapter, msgs, 1) == 1) {
+		dev_dbg(dev->dev, "I2C set brightness.(command, value) (%d, %d)\n",
+			dev_priv->lvds_bl->brightnesscmd,
+			blc_i2c_brightness);
+		return 0;
+	}
+
+	dev_err(dev->dev, "I2C transfer error\n");
+	return -1;
+}
+
+
+static int psb_lvds_pwm_set_brightness(struct drm_device *dev, int level)
+{
+	struct drm_psb_private *dev_priv =
+			(struct drm_psb_private *)dev->dev_private;
+
+	u32 max_pwm_blc;
+	u32 blc_pwm_duty_cycle;
+
+	max_pwm_blc = psb_intel_lvds_get_max_backlight(dev);
+
+	/*BLC_PWM_CTL Should be initiated while backlight device init*/
+	BUG_ON(max_pwm_blc == 0);
+
+	blc_pwm_duty_cycle = level * max_pwm_blc / BRIGHTNESS_MAX_LEVEL;
+
+	if (dev_priv->lvds_bl->pol == BLC_POLARITY_INVERSE)
+		blc_pwm_duty_cycle = max_pwm_blc - blc_pwm_duty_cycle;
+
+	blc_pwm_duty_cycle &= PSB_BACKLIGHT_PWM_POLARITY_BIT_CLEAR;
+	REG_WRITE(BLC_PWM_CTL,
+		  (max_pwm_blc << PSB_BACKLIGHT_PWM_CTL_SHIFT) |
+		  (blc_pwm_duty_cycle));
+
+        dev_info(dev->dev, "Backlight lvds set brightness %08x\n",
+		  (max_pwm_blc << PSB_BACKLIGHT_PWM_CTL_SHIFT) |
+		  (blc_pwm_duty_cycle));
+
+	return 0;
+}
+
+/*
+ * Set LVDS backlight level either by I2C or PWM
+ */
+void psb_intel_lvds_set_brightness(struct drm_device *dev, int level)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+
+	dev_dbg(dev->dev, "backlight level is %d\n", level);
+
+	if (!dev_priv->lvds_bl) {
+		dev_err(dev->dev, "NO LVDS backlight info\n");
+		return;
+	}
+
+	if (dev_priv->lvds_bl->type == BLC_I2C_TYPE)
+		psb_lvds_i2c_set_brightness(dev, level);
+	else
+		psb_lvds_pwm_set_brightness(dev, level);
+}
+
+/*
+ * Sets the backlight level.
+ *
+ * level: backlight level, from 0 to psb_intel_lvds_get_max_backlight().
+ */
+static void psb_intel_lvds_set_backlight(struct drm_device *dev, int level)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	u32 blc_pwm_ctl;
+
+	if (gma_power_begin(dev, false)) {
+		blc_pwm_ctl = REG_READ(BLC_PWM_CTL);
+		blc_pwm_ctl &= ~BACKLIGHT_DUTY_CYCLE_MASK;
+		REG_WRITE(BLC_PWM_CTL,
+				(blc_pwm_ctl |
+				(level << BACKLIGHT_DUTY_CYCLE_SHIFT)));
+		dev_priv->saveBLC_PWM_CTL = (blc_pwm_ctl |
+					(level << BACKLIGHT_DUTY_CYCLE_SHIFT));
+		gma_power_end(dev);
+	} else {
+		blc_pwm_ctl = dev_priv->saveBLC_PWM_CTL &
+				~BACKLIGHT_DUTY_CYCLE_MASK;
+		dev_priv->saveBLC_PWM_CTL = (blc_pwm_ctl |
+					(level << BACKLIGHT_DUTY_CYCLE_SHIFT));
+	}
+}
+
+/*
+ * Sets the power state for the panel.
+ */
+static void psb_intel_lvds_set_power(struct drm_device *dev, bool on)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct psb_intel_mode_device *mode_dev = &dev_priv->mode_dev;
+	u32 pp_status;
+
+	if (!gma_power_begin(dev, true)) {
+	        dev_err(dev->dev, "set power, chip off!\n");
+		return;
+        }
+        
+	if (on) {
+		REG_WRITE(PP_CONTROL, REG_READ(PP_CONTROL) |
+			  POWER_TARGET_ON);
+		do {
+			pp_status = REG_READ(PP_STATUS);
+		} while ((pp_status & PP_ON) == 0);
+
+		psb_intel_lvds_set_backlight(dev,
+					     mode_dev->backlight_duty_cycle);
+	} else {
+		psb_intel_lvds_set_backlight(dev, 0);
+
+		REG_WRITE(PP_CONTROL, REG_READ(PP_CONTROL) &
+			  ~POWER_TARGET_ON);
+		do {
+			pp_status = REG_READ(PP_STATUS);
+		} while (pp_status & PP_ON);
+	}
+
+	gma_power_end(dev);
+}
+
+static void psb_intel_lvds_encoder_dpms(struct drm_encoder *encoder, int mode)
+{
+	struct drm_device *dev = encoder->dev;
+
+	if (mode == DRM_MODE_DPMS_ON)
+		psb_intel_lvds_set_power(dev, true);
+	else
+		psb_intel_lvds_set_power(dev, false);
+
+	/* XXX: We never power down the LVDS pairs. */
+}
+
+static void psb_intel_lvds_save(struct drm_connector *connector)
+{
+	struct drm_device *dev = connector->dev;
+	struct drm_psb_private *dev_priv =
+		(struct drm_psb_private *)dev->dev_private;
+	struct psb_intel_encoder *psb_intel_encoder =
+					psb_intel_attached_encoder(connector);
+	struct psb_intel_lvds_priv *lvds_priv =
+		(struct psb_intel_lvds_priv *)psb_intel_encoder->dev_priv;
+
+	lvds_priv->savePP_ON = REG_READ(LVDSPP_ON);
+	lvds_priv->savePP_OFF = REG_READ(LVDSPP_OFF);
+	lvds_priv->saveLVDS = REG_READ(LVDS);
+	lvds_priv->savePP_CONTROL = REG_READ(PP_CONTROL);
+	lvds_priv->savePP_CYCLE = REG_READ(PP_CYCLE);
+	/*lvds_priv->savePP_DIVISOR = REG_READ(PP_DIVISOR);*/
+	lvds_priv->saveBLC_PWM_CTL = REG_READ(BLC_PWM_CTL);
+	lvds_priv->savePFIT_CONTROL = REG_READ(PFIT_CONTROL);
+	lvds_priv->savePFIT_PGM_RATIOS = REG_READ(PFIT_PGM_RATIOS);
+
+	/*TODO: move backlight_duty_cycle to psb_intel_lvds_priv*/
+	dev_priv->backlight_duty_cycle = (dev_priv->saveBLC_PWM_CTL &
+						BACKLIGHT_DUTY_CYCLE_MASK);
+
+	/*
+	 * If the light is off at server startup,
+	 * just make it full brightness
+	 */
+	if (dev_priv->backlight_duty_cycle == 0)
+		dev_priv->backlight_duty_cycle =
+		psb_intel_lvds_get_max_backlight(dev);
+
+	dev_dbg(dev->dev, "(0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x)\n",
+			lvds_priv->savePP_ON,
+			lvds_priv->savePP_OFF,
+			lvds_priv->saveLVDS,
+			lvds_priv->savePP_CONTROL,
+			lvds_priv->savePP_CYCLE,
+			lvds_priv->saveBLC_PWM_CTL);
+}
+
+static void psb_intel_lvds_restore(struct drm_connector *connector)
+{
+	struct drm_device *dev = connector->dev;
+	u32 pp_status;
+	struct psb_intel_encoder *psb_intel_encoder =
+					psb_intel_attached_encoder(connector);
+	struct psb_intel_lvds_priv *lvds_priv =
+		(struct psb_intel_lvds_priv *)psb_intel_encoder->dev_priv;
+
+	dev_dbg(dev->dev, "(0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x)\n",
+			lvds_priv->savePP_ON,
+			lvds_priv->savePP_OFF,
+			lvds_priv->saveLVDS,
+			lvds_priv->savePP_CONTROL,
+			lvds_priv->savePP_CYCLE,
+			lvds_priv->saveBLC_PWM_CTL);
+
+	REG_WRITE(BLC_PWM_CTL, lvds_priv->saveBLC_PWM_CTL);
+	REG_WRITE(PFIT_CONTROL, lvds_priv->savePFIT_CONTROL);
+	REG_WRITE(PFIT_PGM_RATIOS, lvds_priv->savePFIT_PGM_RATIOS);
+	REG_WRITE(LVDSPP_ON, lvds_priv->savePP_ON);
+	REG_WRITE(LVDSPP_OFF, lvds_priv->savePP_OFF);
+	/*REG_WRITE(PP_DIVISOR, lvds_priv->savePP_DIVISOR);*/
+	REG_WRITE(PP_CYCLE, lvds_priv->savePP_CYCLE);
+	REG_WRITE(PP_CONTROL, lvds_priv->savePP_CONTROL);
+	REG_WRITE(LVDS, lvds_priv->saveLVDS);
+
+	if (lvds_priv->savePP_CONTROL & POWER_TARGET_ON) {
+		REG_WRITE(PP_CONTROL, REG_READ(PP_CONTROL) |
+			POWER_TARGET_ON);
+		do {
+			pp_status = REG_READ(PP_STATUS);
+		} while ((pp_status & PP_ON) == 0);
+	} else {
+		REG_WRITE(PP_CONTROL, REG_READ(PP_CONTROL) &
+			~POWER_TARGET_ON);
+		do {
+			pp_status = REG_READ(PP_STATUS);
+		} while (pp_status & PP_ON);
+	}
+}
+
+int psb_intel_lvds_mode_valid(struct drm_connector *connector,
+				 struct drm_display_mode *mode)
+{
+	struct drm_psb_private *dev_priv = connector->dev->dev_private;
+	struct psb_intel_encoder *psb_intel_encoder =
+					psb_intel_attached_encoder(connector);
+	struct drm_display_mode *fixed_mode =
+					dev_priv->mode_dev.panel_fixed_mode;
+
+	if (psb_intel_encoder->type == INTEL_OUTPUT_MIPI2)
+		fixed_mode = dev_priv->mode_dev.panel_fixed_mode2;
+
+	/* just in case */
+	if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
+		return MODE_NO_DBLESCAN;
+
+	/* just in case */
+	if (mode->flags & DRM_MODE_FLAG_INTERLACE)
+		return MODE_NO_INTERLACE;
+
+	if (fixed_mode) {
+		if (mode->hdisplay > fixed_mode->hdisplay)
+			return MODE_PANEL;
+		if (mode->vdisplay > fixed_mode->vdisplay)
+			return MODE_PANEL;
+	}
+	return MODE_OK;
+}
+
+bool psb_intel_lvds_mode_fixup(struct drm_encoder *encoder,
+				  struct drm_display_mode *mode,
+				  struct drm_display_mode *adjusted_mode)
+{
+	struct drm_device *dev = encoder->dev;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct psb_intel_mode_device *mode_dev = &dev_priv->mode_dev;
+	struct psb_intel_crtc *psb_intel_crtc =
+				to_psb_intel_crtc(encoder->crtc);
+	struct drm_encoder *tmp_encoder;
+	struct drm_display_mode *panel_fixed_mode = mode_dev->panel_fixed_mode;
+	struct psb_intel_encoder *psb_intel_encoder =
+						to_psb_intel_encoder(encoder);
+
+	if (psb_intel_encoder->type == INTEL_OUTPUT_MIPI2)
+		panel_fixed_mode = mode_dev->panel_fixed_mode2;
+
+	/* PSB requires the LVDS is on pipe B, MRST has only one pipe anyway */
+	if (!IS_MRST(dev) && psb_intel_crtc->pipe == 0) {
+		printk(KERN_ERR "Can't support LVDS on pipe A\n");
+		return false;
+	}
+	if (IS_MRST(dev) && psb_intel_crtc->pipe != 0) {
+		printk(KERN_ERR "Must use PIPE A\n");
+		return false;
+	}
+	/* Should never happen!! */
+	list_for_each_entry(tmp_encoder, &dev->mode_config.encoder_list,
+			    head) {
+		if (tmp_encoder != encoder
+		    && tmp_encoder->crtc == encoder->crtc) {
+			printk(KERN_ERR "Can't enable LVDS and another "
+			       "encoder on the same pipe\n");
+			return false;
+		}
+	}
+
+	/*
+	 * If we have timings from the BIOS for the panel, put them in
+	 * to the adjusted mode.  The CRTC will be set up for this mode,
+	 * with the panel scaling set up to source from the H/VDisplay
+	 * of the original mode.
+	 */
+	if (panel_fixed_mode != NULL) {
+		adjusted_mode->hdisplay = panel_fixed_mode->hdisplay;
+		adjusted_mode->hsync_start = panel_fixed_mode->hsync_start;
+		adjusted_mode->hsync_end = panel_fixed_mode->hsync_end;
+		adjusted_mode->htotal = panel_fixed_mode->htotal;
+		adjusted_mode->vdisplay = panel_fixed_mode->vdisplay;
+		adjusted_mode->vsync_start = panel_fixed_mode->vsync_start;
+		adjusted_mode->vsync_end = panel_fixed_mode->vsync_end;
+		adjusted_mode->vtotal = panel_fixed_mode->vtotal;
+		adjusted_mode->clock = panel_fixed_mode->clock;
+		drm_mode_set_crtcinfo(adjusted_mode,
+				      CRTC_INTERLACE_HALVE_V);
+	}
+
+	/*
+	 * XXX: It would be nice to support lower refresh rates on the
+	 * panels to reduce power consumption, and perhaps match the
+	 * user's requested refresh rate.
+	 */
+
+	return true;
+}
+
+static void psb_intel_lvds_prepare(struct drm_encoder *encoder)
+{
+	struct drm_device *dev = encoder->dev;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct psb_intel_mode_device *mode_dev = &dev_priv->mode_dev;
+
+	if (!gma_power_begin(dev, true))
+		return;
+
+	mode_dev->saveBLC_PWM_CTL = REG_READ(BLC_PWM_CTL);
+	mode_dev->backlight_duty_cycle = (mode_dev->saveBLC_PWM_CTL &
+					  BACKLIGHT_DUTY_CYCLE_MASK);
+
+	psb_intel_lvds_set_power(dev, false);
+
+	gma_power_end(dev);
+}
+
+static void psb_intel_lvds_commit(struct drm_encoder *encoder)
+{
+	struct drm_device *dev = encoder->dev;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct psb_intel_mode_device *mode_dev = &dev_priv->mode_dev;
+
+	if (mode_dev->backlight_duty_cycle == 0)
+		mode_dev->backlight_duty_cycle =
+		    psb_intel_lvds_get_max_backlight(dev);
+
+	psb_intel_lvds_set_power(dev, true);
+}
+
+static void psb_intel_lvds_mode_set(struct drm_encoder *encoder,
+				struct drm_display_mode *mode,
+				struct drm_display_mode *adjusted_mode)
+{
+	struct drm_device *dev = encoder->dev;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	u32 pfit_control;
+
+	/*
+	 * The LVDS pin pair will already have been turned on in the
+	 * psb_intel_crtc_mode_set since it has a large impact on the DPLL
+	 * settings.
+	 */
+
+	/*
+	 * Enable automatic panel scaling so that non-native modes fill the
+	 * screen.  Should be enabled before the pipe is enabled, according to
+	 * register description and PRM.
+	 */
+	if (mode->hdisplay != adjusted_mode->hdisplay ||
+	    mode->vdisplay != adjusted_mode->vdisplay)
+		pfit_control = (PFIT_ENABLE | VERT_AUTO_SCALE |
+				HORIZ_AUTO_SCALE | VERT_INTERP_BILINEAR |
+				HORIZ_INTERP_BILINEAR);
+	else
+		pfit_control = 0;
+
+	if (dev_priv->lvds_dither)
+		pfit_control |= PANEL_8TO6_DITHER_ENABLE;
+
+	REG_WRITE(PFIT_CONTROL, pfit_control);
+}
+
+/*
+ * Detect the LVDS connection.
+ *
+ * This always returns CONNECTOR_STATUS_CONNECTED.
+ * This connector should only have
+ * been set up if the LVDS was actually connected anyway.
+ */
+static enum drm_connector_status psb_intel_lvds_detect(struct drm_connector
+						   *connector, bool force)
+{
+	return connector_status_connected;
+}
+
+/*
+ * Return the list of DDC modes if available, or the BIOS fixed mode otherwise.
+ */
+static int psb_intel_lvds_get_modes(struct drm_connector *connector)
+{
+	struct drm_device *dev = connector->dev;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct psb_intel_mode_device *mode_dev = &dev_priv->mode_dev;
+	struct psb_intel_encoder *psb_intel_encoder =
+					psb_intel_attached_encoder(connector);
+	struct psb_intel_lvds_priv *lvds_priv = psb_intel_encoder->dev_priv;
+	int ret = 0;
+
+	if (!IS_MRST(dev))
+		ret = psb_intel_ddc_get_modes(connector, &lvds_priv->i2c_bus->adapter);
+
+	if (ret)
+		return ret;
+
+	/* Didn't get an EDID, so
+	 * Set wide sync ranges so we get all modes
+	 * handed to valid_mode for checking
+	 */
+	connector->display_info.min_vfreq = 0;
+	connector->display_info.max_vfreq = 200;
+	connector->display_info.min_hfreq = 0;
+	connector->display_info.max_hfreq = 200;
+
+	if (mode_dev->panel_fixed_mode != NULL) {
+		struct drm_display_mode *mode =
+		    drm_mode_duplicate(dev, mode_dev->panel_fixed_mode);
+		drm_mode_probed_add(connector, mode);
+		return 1;
+	}
+
+	return 0;
+}
+
+/**
+ * psb_intel_lvds_destroy - unregister and free LVDS structures
+ * @connector: connector to free
+ *
+ * Unregister the DDC bus for this connector then free the driver private
+ * structure.
+ */
+void psb_intel_lvds_destroy(struct drm_connector *connector)
+{
+	struct psb_intel_encoder *psb_intel_encoder =
+					psb_intel_attached_encoder(connector);
+	struct psb_intel_lvds_priv *lvds_priv = psb_intel_encoder->dev_priv;
+
+	if (lvds_priv->ddc_bus)
+		psb_intel_i2c_destroy(lvds_priv->ddc_bus);
+	drm_sysfs_connector_remove(connector);
+	drm_connector_cleanup(connector);
+	kfree(connector);
+}
+
+int psb_intel_lvds_set_property(struct drm_connector *connector,
+				       struct drm_property *property,
+				       uint64_t value)
+{
+	struct drm_encoder *encoder = connector->encoder;
+
+	if (!encoder)
+		return -1;
+
+	if (!strcmp(property->name, "scaling mode")) {
+		struct psb_intel_crtc *crtc =
+					to_psb_intel_crtc(encoder->crtc);
+		uint64_t curval;
+
+		if (!crtc)
+			goto set_prop_error;
+
+		switch (value) {
+		case DRM_MODE_SCALE_FULLSCREEN:
+			break;
+		case DRM_MODE_SCALE_NO_SCALE:
+			break;
+		case DRM_MODE_SCALE_ASPECT:
+			break;
+		default:
+			goto set_prop_error;
+		}
+
+		if (drm_connector_property_get_value(connector,
+						     property,
+						     &curval))
+			goto set_prop_error;
+
+		if (curval == value)
+			goto set_prop_done;
+
+		if (drm_connector_property_set_value(connector,
+							property,
+							value))
+			goto set_prop_error;
+
+		if (crtc->saved_mode.hdisplay != 0 &&
+		    crtc->saved_mode.vdisplay != 0) {
+			if (!drm_crtc_helper_set_mode(encoder->crtc,
+						      &crtc->saved_mode,
+						      encoder->crtc->x,
+						      encoder->crtc->y,
+						      encoder->crtc->fb))
+				goto set_prop_error;
+		}
+	} else if (!strcmp(property->name, "backlight")) {
+		if (drm_connector_property_set_value(connector,
+							property,
+							value))
+			goto set_prop_error;
+		else {
+#ifdef CONFIG_BACKLIGHT_CLASS_DEVICE
+			struct drm_psb_private *devp =
+						encoder->dev->dev_private;
+			struct backlight_device *bd = devp->backlight_device;
+			if (bd) {
+				bd->props.brightness = value;
+				backlight_update_status(bd);
+			}
+#endif
+		}
+	} else if (!strcmp(property->name, "DPMS")) {
+		struct drm_encoder_helper_funcs *hfuncs
+						= encoder->helper_private;
+		hfuncs->dpms(encoder, value);
+	}
+
+set_prop_done:
+	return 0;
+set_prop_error:
+	return -1;
+}
+
+static const struct drm_encoder_helper_funcs psb_intel_lvds_helper_funcs = {
+	.dpms = psb_intel_lvds_encoder_dpms,
+	.mode_fixup = psb_intel_lvds_mode_fixup,
+	.prepare = psb_intel_lvds_prepare,
+	.mode_set = psb_intel_lvds_mode_set,
+	.commit = psb_intel_lvds_commit,
+};
+
+const struct drm_connector_helper_funcs
+				psb_intel_lvds_connector_helper_funcs = {
+	.get_modes = psb_intel_lvds_get_modes,
+	.mode_valid = psb_intel_lvds_mode_valid,
+	.best_encoder = psb_intel_best_encoder,
+};
+
+const struct drm_connector_funcs psb_intel_lvds_connector_funcs = {
+	.dpms = drm_helper_connector_dpms,
+	.save = psb_intel_lvds_save,
+	.restore = psb_intel_lvds_restore,
+	.detect = psb_intel_lvds_detect,
+	.fill_modes = drm_helper_probe_single_connector_modes,
+	.set_property = psb_intel_lvds_set_property,
+	.destroy = psb_intel_lvds_destroy,
+};
+
+
+static void psb_intel_lvds_enc_destroy(struct drm_encoder *encoder)
+{
+	drm_encoder_cleanup(encoder);
+}
+
+const struct drm_encoder_funcs psb_intel_lvds_enc_funcs = {
+	.destroy = psb_intel_lvds_enc_destroy,
+};
+
+
+
+/**
+ * psb_intel_lvds_init - setup LVDS connectors on this device
+ * @dev: drm device
+ *
+ * Create the connector, register the LVDS DDC bus, and try to figure out what
+ * modes we can display on the LVDS panel (if present).
+ */
+void psb_intel_lvds_init(struct drm_device *dev,
+			 struct psb_intel_mode_device *mode_dev)
+{
+	struct psb_intel_encoder *psb_intel_encoder;
+	struct psb_intel_connector *psb_intel_connector;
+	struct psb_intel_lvds_priv *lvds_priv;
+	struct drm_connector *connector;
+	struct drm_encoder *encoder;
+	struct drm_display_mode *scan;	/* *modes, *bios_mode; */
+	struct drm_crtc *crtc;
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	u32 lvds;
+	int pipe;
+
+	psb_intel_encoder =
+			kzalloc(sizeof(struct psb_intel_encoder), GFP_KERNEL);
+
+	if (!psb_intel_encoder) {
+		dev_err(dev->dev, "psb_intel_encoder allocation error\n");
+		return;
+	}
+
+	psb_intel_connector =
+		kzalloc(sizeof(struct psb_intel_connector), GFP_KERNEL);
+
+	if (!psb_intel_connector) {
+		kfree(psb_intel_encoder);
+		dev_err(dev->dev, "psb_intel_connector allocation error\n");
+	}
+
+	lvds_priv = kzalloc(sizeof(struct psb_intel_lvds_priv), GFP_KERNEL);
+	if (!lvds_priv) {
+		dev_err(dev->dev, "LVDS private allocation error\n");
+		goto failed_connector;
+	}
+
+	psb_intel_encoder->dev_priv = lvds_priv;
+
+	connector = &psb_intel_connector->base;
+	encoder = &psb_intel_encoder->base;
+	drm_connector_init(dev, connector,
+			   &psb_intel_lvds_connector_funcs,
+			   DRM_MODE_CONNECTOR_LVDS);
+
+	drm_encoder_init(dev, encoder,
+			 &psb_intel_lvds_enc_funcs,
+			 DRM_MODE_ENCODER_LVDS);
+
+	psb_intel_connector_attach_encoder(psb_intel_connector,
+					   psb_intel_encoder);
+	psb_intel_encoder->type = INTEL_OUTPUT_LVDS;
+
+	drm_encoder_helper_add(encoder, &psb_intel_lvds_helper_funcs);
+	drm_connector_helper_add(connector,
+				 &psb_intel_lvds_connector_helper_funcs);
+	connector->display_info.subpixel_order = SubPixelHorizontalRGB;
+	connector->interlace_allowed = false;
+	connector->doublescan_allowed = false;
+
+	/*Attach connector properties*/
+	drm_connector_attach_property(connector,
+				      dev->mode_config.scaling_mode_property,
+				      DRM_MODE_SCALE_FULLSCREEN);
+	drm_connector_attach_property(connector,
+				      dev_priv->backlight_property,
+				      BRIGHTNESS_MAX_LEVEL);
+
+	/*
+	 * Set up I2C bus
+	 * FIXME: distroy i2c_bus when exit
+	 */
+	lvds_priv->i2c_bus = psb_intel_i2c_create(dev, GPIOB, "LVDSBLC_B");
+	if (!lvds_priv->i2c_bus) {
+		dev_printk(KERN_ERR,
+			&dev->pdev->dev, "I2C bus registration failed.\n");
+		goto failed_blc_i2c;
+	}
+	lvds_priv->i2c_bus->slave_addr = 0x2C;
+	dev_priv->lvds_i2c_bus =  lvds_priv->i2c_bus;
+
+	/*
+	 * LVDS discovery:
+	 * 1) check for EDID on DDC
+	 * 2) check for VBT data
+	 * 3) check to see if LVDS is already on
+	 *    if none of the above, no panel
+	 * 4) make sure lid is open
+	 *    if closed, act like it's not there for now
+	 */
+
+	/* Set up the DDC bus. */
+	lvds_priv->ddc_bus = psb_intel_i2c_create(dev, GPIOC, "LVDSDDC_C");
+	if (!lvds_priv->ddc_bus) {
+		dev_printk(KERN_ERR, &dev->pdev->dev,
+			   "DDC bus registration " "failed.\n");
+		goto failed_ddc;
+	}
+
+	/*
+	 * Attempt to get the fixed panel mode from DDC.  Assume that the
+	 * preferred mode is the right one.
+	 */
+	psb_intel_ddc_get_modes(connector, &lvds_priv->ddc_bus->adapter);
+	list_for_each_entry(scan, &connector->probed_modes, head) {
+		if (scan->type & DRM_MODE_TYPE_PREFERRED) {
+			mode_dev->panel_fixed_mode =
+			    drm_mode_duplicate(dev, scan);
+			goto out;	/* FIXME: check for quirks */
+		}
+	}
+
+	/* Failed to get EDID, what about VBT? do we need this? */
+	if (mode_dev->vbt_mode)
+		mode_dev->panel_fixed_mode =
+		    drm_mode_duplicate(dev, mode_dev->vbt_mode);
+
+	if (!mode_dev->panel_fixed_mode)
+		if (dev_priv->lfp_lvds_vbt_mode)
+			mode_dev->panel_fixed_mode =
+				drm_mode_duplicate(dev,
+					dev_priv->lfp_lvds_vbt_mode);
+
+	/*
+	 * If we didn't get EDID, try checking if the panel is already turned
+	 * on.	If so, assume that whatever is currently programmed is the
+	 * correct mode.
+	 */
+	lvds = REG_READ(LVDS);
+	pipe = (lvds & LVDS_PIPEB_SELECT) ? 1 : 0;
+	crtc = psb_intel_get_crtc_from_pipe(dev, pipe);
+
+	if (crtc && (lvds & LVDS_PORT_EN)) {
+		mode_dev->panel_fixed_mode =
+		    psb_intel_crtc_mode_get(dev, crtc);
+		if (mode_dev->panel_fixed_mode) {
+			mode_dev->panel_fixed_mode->type |=
+			    DRM_MODE_TYPE_PREFERRED;
+			goto out;	/* FIXME: check for quirks */
+		}
+	}
+
+	/* If we still don't have a mode after all that, give up. */
+	if (!mode_dev->panel_fixed_mode) {
+		dev_err(dev->dev, "Found no modes on the lvds, ignoring the LVDS\n");
+		goto failed_find;
+	}
+
+	/*
+	 * Blacklist machines with BIOSes that list an LVDS panel without
+	 * actually having one.
+	 */
+out:
+	drm_sysfs_connector_add(connector);
+	return;
+
+failed_find:
+	if (lvds_priv->ddc_bus)
+		psb_intel_i2c_destroy(lvds_priv->ddc_bus);
+failed_ddc:
+	if (lvds_priv->i2c_bus)
+		psb_intel_i2c_destroy(lvds_priv->i2c_bus);
+failed_blc_i2c:
+	drm_encoder_cleanup(encoder);
+	drm_connector_cleanup(connector);
+failed_connector:
+	if (psb_intel_connector)
+		kfree(psb_intel_connector);
+}
+
diff --git a/drivers/gpu/drm/gma500/psb_intel_modes.c b/drivers/gpu/drm/gma500/psb_intel_modes.c
new file mode 100644
index 000000000000..4fca0d6feebe
--- /dev/null
+++ b/drivers/gpu/drm/gma500/psb_intel_modes.c
@@ -0,0 +1,75 @@
+/*
+ * Copyright (c) 2007 Intel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Authers: Jesse Barnes <jesse.barnes@intel.com>
+ */
+
+#include <linux/i2c.h>
+#include <linux/fb.h>
+#include <drm/drmP.h>
+#include "psb_intel_drv.h"
+
+/**
+ * psb_intel_ddc_probe
+ *
+ */
+bool psb_intel_ddc_probe(struct i2c_adapter *adapter)
+{
+	u8 out_buf[] = { 0x0, 0x0 };
+	u8 buf[2];
+	int ret;
+	struct i2c_msg msgs[] = {
+		{
+		 .addr = 0x50,
+		 .flags = 0,
+		 .len = 1,
+		 .buf = out_buf,
+		 },
+		{
+		 .addr = 0x50,
+		 .flags = I2C_M_RD,
+		 .len = 1,
+		 .buf = buf,
+		 }
+	};
+
+	ret = i2c_transfer(adapter, msgs, 2);
+	if (ret == 2)
+		return true;
+
+	return false;
+}
+
+/**
+ * psb_intel_ddc_get_modes - get modelist from monitor
+ * @connector: DRM connector device to use
+ *
+ * Fetch the EDID information from @connector using the DDC bus.
+ */
+int psb_intel_ddc_get_modes(struct drm_connector *connector,
+			    struct i2c_adapter *adapter)
+{
+	struct edid *edid;
+	int ret = 0;
+
+	edid = drm_get_edid(connector, adapter);
+	if (edid) {
+		drm_mode_connector_update_edid_property(connector, edid);
+		ret = drm_add_edid_modes(connector, edid);
+		kfree(edid);
+	}
+	return ret;
+}
diff --git a/drivers/gpu/drm/gma500/psb_intel_reg.h b/drivers/gpu/drm/gma500/psb_intel_reg.h
new file mode 100644
index 000000000000..fcc0af03d685
--- /dev/null
+++ b/drivers/gpu/drm/gma500/psb_intel_reg.h
@@ -0,0 +1,1309 @@
+/*
+ * Copyright (c) 2009, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+#ifndef __PSB_INTEL_REG_H__
+#define __PSB_INTEL_REG_H__
+
+/*
+ * GPIO regs
+ */
+#define GPIOA			0x5010
+#define GPIOB			0x5014
+#define GPIOC			0x5018
+#define GPIOD			0x501c
+#define GPIOE			0x5020
+#define GPIOF			0x5024
+#define GPIOG			0x5028
+#define GPIOH			0x502c
+# define GPIO_CLOCK_DIR_MASK		(1 << 0)
+# define GPIO_CLOCK_DIR_IN		(0 << 1)
+# define GPIO_CLOCK_DIR_OUT		(1 << 1)
+# define GPIO_CLOCK_VAL_MASK		(1 << 2)
+# define GPIO_CLOCK_VAL_OUT		(1 << 3)
+# define GPIO_CLOCK_VAL_IN		(1 << 4)
+# define GPIO_CLOCK_PULLUP_DISABLE	(1 << 5)
+# define GPIO_DATA_DIR_MASK		(1 << 8)
+# define GPIO_DATA_DIR_IN		(0 << 9)
+# define GPIO_DATA_DIR_OUT		(1 << 9)
+# define GPIO_DATA_VAL_MASK		(1 << 10)
+# define GPIO_DATA_VAL_OUT		(1 << 11)
+# define GPIO_DATA_VAL_IN		(1 << 12)
+# define GPIO_DATA_PULLUP_DISABLE	(1 << 13)
+
+#define GMBUS0			0x5100 /* clock/port select */
+#define   GMBUS_RATE_100KHZ	(0<<8)
+#define   GMBUS_RATE_50KHZ	(1<<8)
+#define   GMBUS_RATE_400KHZ	(2<<8) /* reserved on Pineview */
+#define   GMBUS_RATE_1MHZ	(3<<8) /* reserved on Pineview */
+#define   GMBUS_HOLD_EXT	(1<<7) /* 300ns hold time, rsvd on Pineview */
+#define   GMBUS_PORT_DISABLED	0
+#define   GMBUS_PORT_SSC	1
+#define   GMBUS_PORT_VGADDC	2
+#define   GMBUS_PORT_PANEL	3
+#define   GMBUS_PORT_DPC	4 /* HDMIC */
+#define   GMBUS_PORT_DPB	5 /* SDVO, HDMIB */
+				  /* 6 reserved */
+#define   GMBUS_PORT_DPD	7 /* HDMID */
+#define   GMBUS_NUM_PORTS       8
+#define GMBUS1			0x5104 /* command/status */
+#define   GMBUS_SW_CLR_INT	(1<<31)
+#define   GMBUS_SW_RDY		(1<<30)
+#define   GMBUS_ENT		(1<<29) /* enable timeout */
+#define   GMBUS_CYCLE_NONE	(0<<25)
+#define   GMBUS_CYCLE_WAIT	(1<<25)
+#define   GMBUS_CYCLE_INDEX	(2<<25)
+#define   GMBUS_CYCLE_STOP	(4<<25)
+#define   GMBUS_BYTE_COUNT_SHIFT 16
+#define   GMBUS_SLAVE_INDEX_SHIFT 8
+#define   GMBUS_SLAVE_ADDR_SHIFT 1
+#define   GMBUS_SLAVE_READ	(1<<0)
+#define   GMBUS_SLAVE_WRITE	(0<<0)
+#define GMBUS2			0x5108 /* status */
+#define   GMBUS_INUSE		(1<<15)
+#define   GMBUS_HW_WAIT_PHASE	(1<<14)
+#define   GMBUS_STALL_TIMEOUT	(1<<13)
+#define   GMBUS_INT		(1<<12)
+#define   GMBUS_HW_RDY		(1<<11)
+#define   GMBUS_SATOER		(1<<10)
+#define   GMBUS_ACTIVE		(1<<9)
+#define GMBUS3			0x510c /* data buffer bytes 3-0 */
+#define GMBUS4			0x5110 /* interrupt mask (Pineview+) */
+#define   GMBUS_SLAVE_TIMEOUT_EN (1<<4)
+#define   GMBUS_NAK_EN		(1<<3)
+#define   GMBUS_IDLE_EN		(1<<2)
+#define   GMBUS_HW_WAIT_EN	(1<<1)
+#define   GMBUS_HW_RDY_EN	(1<<0)
+#define GMBUS5			0x5120 /* byte index */
+#define   GMBUS_2BYTE_INDEX_EN	(1<<31)
+
+#define BLC_PWM_CTL		0x61254
+#define BLC_PWM_CTL2		0x61250
+#define BLC_PWM_CTL_C		0x62254
+#define BLC_PWM_CTL2_C		0x62250
+#define BACKLIGHT_MODULATION_FREQ_SHIFT		(17)
+/*
+ * This is the most significant 15 bits of the number of backlight cycles in a
+ * complete cycle of the modulated backlight control.
+ *
+ * The actual value is this field multiplied by two.
+ */
+#define BACKLIGHT_MODULATION_FREQ_MASK	(0x7fff << 17)
+#define BLM_LEGACY_MODE			(1 << 16)
+/*
+ * This is the number of cycles out of the backlight modulation cycle for which
+ * the backlight is on.
+ *
+ * This field must be no greater than the number of cycles in the complete
+ * backlight modulation cycle.
+ */
+#define BACKLIGHT_DUTY_CYCLE_SHIFT	(0)
+#define BACKLIGHT_DUTY_CYCLE_MASK	(0xffff)
+
+#define I915_GCFGC			0xf0
+#define I915_LOW_FREQUENCY_ENABLE	(1 << 7)
+#define I915_DISPLAY_CLOCK_190_200_MHZ	(0 << 4)
+#define I915_DISPLAY_CLOCK_333_MHZ	(4 << 4)
+#define I915_DISPLAY_CLOCK_MASK		(7 << 4)
+
+#define I855_HPLLCC			0xc0
+#define I855_CLOCK_CONTROL_MASK		(3 << 0)
+#define I855_CLOCK_133_200		(0 << 0)
+#define I855_CLOCK_100_200		(1 << 0)
+#define I855_CLOCK_100_133		(2 << 0)
+#define I855_CLOCK_166_250		(3 << 0)
+
+/* I830 CRTC registers */
+#define HTOTAL_A		0x60000
+#define HBLANK_A		0x60004
+#define HSYNC_A			0x60008
+#define VTOTAL_A		0x6000c
+#define VBLANK_A		0x60010
+#define VSYNC_A			0x60014
+#define PIPEASRC		0x6001c
+#define BCLRPAT_A		0x60020
+#define VSYNCSHIFT_A		0x60028
+
+#define HTOTAL_B		0x61000
+#define HBLANK_B		0x61004
+#define HSYNC_B			0x61008
+#define VTOTAL_B		0x6100c
+#define VBLANK_B		0x61010
+#define VSYNC_B			0x61014
+#define PIPEBSRC		0x6101c
+#define BCLRPAT_B		0x61020
+#define VSYNCSHIFT_B		0x61028
+
+#define HTOTAL_C		0x62000
+#define HBLANK_C		0x62004
+#define HSYNC_C			0x62008
+#define VTOTAL_C		0x6200c
+#define VBLANK_C		0x62010
+#define VSYNC_C			0x62014
+#define PIPECSRC		0x6201c
+#define BCLRPAT_C		0x62020
+#define VSYNCSHIFT_C		0x62028
+
+#define PP_STATUS		0x61200
+# define PP_ON				(1 << 31)
+/*
+ * Indicates that all dependencies of the panel are on:
+ *
+ * - PLL enabled
+ * - pipe enabled
+ * - LVDS/DVOB/DVOC on
+ */
+#define PP_READY			(1 << 30)
+#define PP_SEQUENCE_NONE		(0 << 28)
+#define PP_SEQUENCE_ON			(1 << 28)
+#define PP_SEQUENCE_OFF			(2 << 28)
+#define PP_SEQUENCE_MASK		0x30000000
+#define PP_CONTROL		0x61204
+#define POWER_TARGET_ON			(1 << 0)
+
+#define LVDSPP_ON		0x61208
+#define LVDSPP_OFF		0x6120c
+#define PP_CYCLE		0x61210
+
+#define PFIT_CONTROL		0x61230
+#define PFIT_ENABLE			(1 << 31)
+#define PFIT_PIPE_MASK			(3 << 29)
+#define PFIT_PIPE_SHIFT			29
+#define PFIT_SCALING_MODE_PILLARBOX	(1 << 27)
+#define PFIT_SCALING_MODE_LETTERBOX	(3 << 26)
+#define VERT_INTERP_DISABLE		(0 << 10)
+#define VERT_INTERP_BILINEAR		(1 << 10)
+#define VERT_INTERP_MASK		(3 << 10)
+#define VERT_AUTO_SCALE			(1 << 9)
+#define HORIZ_INTERP_DISABLE		(0 << 6)
+#define HORIZ_INTERP_BILINEAR		(1 << 6)
+#define HORIZ_INTERP_MASK		(3 << 6)
+#define HORIZ_AUTO_SCALE		(1 << 5)
+#define PANEL_8TO6_DITHER_ENABLE	(1 << 3)
+
+#define PFIT_PGM_RATIOS		0x61234
+#define PFIT_VERT_SCALE_MASK			0xfff00000
+#define PFIT_HORIZ_SCALE_MASK			0x0000fff0
+
+#define PFIT_AUTO_RATIOS	0x61238
+
+#define DPLL_A			0x06014
+#define DPLL_B			0x06018
+#define DPLL_VCO_ENABLE			(1 << 31)
+#define DPLL_DVO_HIGH_SPEED		(1 << 30)
+#define DPLL_SYNCLOCK_ENABLE		(1 << 29)
+#define DPLL_VGA_MODE_DIS		(1 << 28)
+#define DPLLB_MODE_DAC_SERIAL		(1 << 26)	/* i915 */
+#define DPLLB_MODE_LVDS			(2 << 26)	/* i915 */
+#define DPLL_MODE_MASK			(3 << 26)
+#define DPLL_DAC_SERIAL_P2_CLOCK_DIV_10	(0 << 24)	/* i915 */
+#define DPLL_DAC_SERIAL_P2_CLOCK_DIV_5	(1 << 24)	/* i915 */
+#define DPLLB_LVDS_P2_CLOCK_DIV_14	(0 << 24)	/* i915 */
+#define DPLLB_LVDS_P2_CLOCK_DIV_7	(1 << 24)	/* i915 */
+#define DPLL_P2_CLOCK_DIV_MASK		0x03000000	/* i915 */
+#define DPLL_FPA01_P1_POST_DIV_MASK	0x00ff0000	/* i915 */
+#define DPLL_LOCK			(1 << 15)	/* CDV */
+
+/*
+ *  The i830 generation, in DAC/serial mode, defines p1 as two plus this
+ * bitfield, or just 2 if PLL_P1_DIVIDE_BY_TWO is set.
+ */
+# define DPLL_FPA01_P1_POST_DIV_MASK_I830	0x001f0000
+/*
+ * The i830 generation, in LVDS mode, defines P1 as the bit number set within
+ * this field (only one bit may be set).
+ */
+#define DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS	0x003f0000
+#define DPLL_FPA01_P1_POST_DIV_SHIFT	16
+#define PLL_P2_DIVIDE_BY_4		(1 << 23)	/* i830, required
+							 * in DVO non-gang */
+# define PLL_P1_DIVIDE_BY_TWO		(1 << 21)	/* i830 */
+#define PLL_REF_INPUT_DREFCLK		(0 << 13)
+#define PLL_REF_INPUT_TVCLKINA		(1 << 13)	/* i830 */
+#define PLL_REF_INPUT_TVCLKINBC		(2 << 13)	/* SDVO
+								 * TVCLKIN */
+#define PLLB_REF_INPUT_SPREADSPECTRUMIN	(3 << 13)
+#define PLL_REF_INPUT_MASK		(3 << 13)
+#define PLL_LOAD_PULSE_PHASE_SHIFT	9
+/*
+ * Parallel to Serial Load Pulse phase selection.
+ * Selects the phase for the 10X DPLL clock for the PCIe
+ * digital display port. The range is 4 to 13; 10 or more
+ * is just a flip delay. The default is 6
+ */
+#define PLL_LOAD_PULSE_PHASE_MASK	(0xf << PLL_LOAD_PULSE_PHASE_SHIFT)
+#define DISPLAY_RATE_SELECT_FPA1	(1 << 8)
+
+/*
+ * SDVO multiplier for 945G/GM. Not used on 965.
+ *
+ * DPLL_MD_UDI_MULTIPLIER_MASK
+ */
+#define SDVO_MULTIPLIER_MASK		0x000000ff
+#define SDVO_MULTIPLIER_SHIFT_HIRES	4
+#define SDVO_MULTIPLIER_SHIFT_VGA	0
+
+/*
+ * PLL_MD
+ */
+/* Pipe A SDVO/UDI clock multiplier/divider register for G965. */
+#define DPLL_A_MD		0x0601c
+/* Pipe B SDVO/UDI clock multiplier/divider register for G965. */
+#define DPLL_B_MD		0x06020
+/*
+ * UDI pixel divider, controlling how many pixels are stuffed into a packet.
+ *
+ * Value is pixels minus 1.  Must be set to 1 pixel for SDVO.
+ */
+#define DPLL_MD_UDI_DIVIDER_MASK	0x3f000000
+#define DPLL_MD_UDI_DIVIDER_SHIFT	24
+/* UDI pixel divider for VGA, same as DPLL_MD_UDI_DIVIDER_MASK. */
+#define DPLL_MD_VGA_UDI_DIVIDER_MASK	0x003f0000
+#define DPLL_MD_VGA_UDI_DIVIDER_SHIFT	16
+/*
+ * SDVO/UDI pixel multiplier.
+ *
+ * SDVO requires that the bus clock rate be between 1 and 2 Ghz, and the bus
+ * clock rate is 10 times the DPLL clock.  At low resolution/refresh rate
+ * modes, the bus rate would be below the limits, so SDVO allows for stuffing
+ * dummy bytes in the datastream at an increased clock rate, with both sides of
+ * the link knowing how many bytes are fill.
+ *
+ * So, for a mode with a dotclock of 65Mhz, we would want to double the clock
+ * rate to 130Mhz to get a bus rate of 1.30Ghz.  The DPLL clock rate would be
+ * set to 130Mhz, and the SDVO multiplier set to 2x in this register and
+ * through an SDVO command.
+ *
+ * This register field has values of multiplication factor minus 1, with
+ * a maximum multiplier of 5 for SDVO.
+ */
+#define DPLL_MD_UDI_MULTIPLIER_MASK	0x00003f00
+#define DPLL_MD_UDI_MULTIPLIER_SHIFT	8
+/*
+ * SDVO/UDI pixel multiplier for VGA, same as DPLL_MD_UDI_MULTIPLIER_MASK.
+ * This best be set to the default value (3) or the CRT won't work. No,
+ * I don't entirely understand what this does...
+ */
+#define DPLL_MD_VGA_UDI_MULTIPLIER_MASK	0x0000003f
+#define DPLL_MD_VGA_UDI_MULTIPLIER_SHIFT 0
+
+#define DPLL_TEST		0x606c
+#define DPLLB_TEST_SDVO_DIV_1		(0 << 22)
+#define DPLLB_TEST_SDVO_DIV_2		(1 << 22)
+#define DPLLB_TEST_SDVO_DIV_4		(2 << 22)
+#define DPLLB_TEST_SDVO_DIV_MASK	(3 << 22)
+#define DPLLB_TEST_N_BYPASS		(1 << 19)
+#define DPLLB_TEST_M_BYPASS		(1 << 18)
+#define DPLLB_INPUT_BUFFER_ENABLE	(1 << 16)
+#define DPLLA_TEST_N_BYPASS		(1 << 3)
+#define DPLLA_TEST_M_BYPASS		(1 << 2)
+#define DPLLA_INPUT_BUFFER_ENABLE	(1 << 0)
+
+#define ADPA			0x61100
+#define ADPA_DAC_ENABLE			(1 << 31)
+#define ADPA_DAC_DISABLE		0
+#define ADPA_PIPE_SELECT_MASK		(1 << 30)
+#define ADPA_PIPE_A_SELECT		0
+#define ADPA_PIPE_B_SELECT		(1 << 30)
+#define ADPA_USE_VGA_HVPOLARITY		(1 << 15)
+#define ADPA_SETS_HVPOLARITY		0
+#define ADPA_VSYNC_CNTL_DISABLE		(1 << 11)
+#define ADPA_VSYNC_CNTL_ENABLE		0
+#define ADPA_HSYNC_CNTL_DISABLE		(1 << 10)
+#define ADPA_HSYNC_CNTL_ENABLE		0
+#define ADPA_VSYNC_ACTIVE_HIGH		(1 << 4)
+#define ADPA_VSYNC_ACTIVE_LOW		0
+#define ADPA_HSYNC_ACTIVE_HIGH		(1 << 3)
+#define ADPA_HSYNC_ACTIVE_LOW		0
+
+#define FPA0			0x06040
+#define FPA1			0x06044
+#define FPB0			0x06048
+#define FPB1			0x0604c
+#define FP_N_DIV_MASK			0x003f0000
+#define FP_N_DIV_SHIFT			16
+#define FP_M1_DIV_MASK			0x00003f00
+#define FP_M1_DIV_SHIFT			8
+#define FP_M2_DIV_MASK			0x0000003f
+#define FP_M2_DIV_SHIFT			0
+
+#define PORT_HOTPLUG_EN		0x61110
+#define SDVOB_HOTPLUG_INT_EN		(1 << 26)
+#define SDVOC_HOTPLUG_INT_EN		(1 << 25)
+#define TV_HOTPLUG_INT_EN		(1 << 18)
+#define CRT_HOTPLUG_INT_EN		(1 << 9)
+#define CRT_HOTPLUG_FORCE_DETECT	(1 << 3)
+/* CDV.. */
+#define CRT_HOTPLUG_ACTIVATION_PERIOD_64	(1 << 8)
+#define CRT_HOTPLUG_DAC_ON_TIME_2M		(0 << 7)
+#define CRT_HOTPLUG_DAC_ON_TIME_4M		(1 << 7)
+#define CRT_HOTPLUG_VOLTAGE_COMPARE_40		(0 << 5)
+#define CRT_HOTPLUG_VOLTAGE_COMPARE_50		(1 << 5)
+#define CRT_HOTPLUG_VOLTAGE_COMPARE_60		(2 << 5)
+#define CRT_HOTPLUG_VOLTAGE_COMPARE_70		(3 << 5)
+#define CRT_HOTPLUG_VOLTAGE_COMPARE_MASK	(3 << 5)
+#define CRT_HOTPLUG_DETECT_DELAY_1G		(0 << 4)
+#define CRT_HOTPLUG_DETECT_DELAY_2G		(1 << 4)
+#define CRT_HOTPLUG_DETECT_VOLTAGE_325MV	(0 << 2)
+#define CRT_HOTPLUG_DETECT_VOLTAGE_475MV	(1 << 2)
+#define CRT_HOTPLUG_DETECT_MASK			0x000000F8
+
+#define PORT_HOTPLUG_STAT	0x61114
+#define CRT_HOTPLUG_INT_STATUS		(1 << 11)
+#define TV_HOTPLUG_INT_STATUS		(1 << 10)
+#define CRT_HOTPLUG_MONITOR_MASK	(3 << 8)
+#define CRT_HOTPLUG_MONITOR_COLOR	(3 << 8)
+#define CRT_HOTPLUG_MONITOR_MONO	(2 << 8)
+#define CRT_HOTPLUG_MONITOR_NONE	(0 << 8)
+#define SDVOC_HOTPLUG_INT_STATUS	(1 << 7)
+#define SDVOB_HOTPLUG_INT_STATUS	(1 << 6)
+
+#define SDVOB			0x61140
+#define SDVOC			0x61160
+#define SDVO_ENABLE			(1 << 31)
+#define SDVO_PIPE_B_SELECT		(1 << 30)
+#define SDVO_STALL_SELECT		(1 << 29)
+#define SDVO_INTERRUPT_ENABLE		(1 << 26)
+#define SDVO_COLOR_RANGE_16_235		(1 << 8)
+#define SDVO_AUDIO_ENABLE		(1 << 6)
+
+/**
+ * 915G/GM SDVO pixel multiplier.
+ *
+ * Programmed value is multiplier - 1, up to 5x.
+ *
+ * DPLL_MD_UDI_MULTIPLIER_MASK
+ */
+#define SDVO_PORT_MULTIPLY_MASK		(7 << 23)
+#define SDVO_PORT_MULTIPLY_SHIFT	23
+#define SDVO_PHASE_SELECT_MASK		(15 << 19)
+#define SDVO_PHASE_SELECT_DEFAULT	(6 << 19)
+#define SDVO_CLOCK_OUTPUT_INVERT	(1 << 18)
+#define SDVOC_GANG_MODE			(1 << 16)
+#define SDVO_BORDER_ENABLE		(1 << 7)
+#define SDVOB_PCIE_CONCURRENCY		(1 << 3)
+#define SDVO_DETECTED			(1 << 2)
+/* Bits to be preserved when writing */
+#define SDVOB_PRESERVE_MASK		((1 << 17) | (1 << 16) | (1 << 14))
+#define SDVOC_PRESERVE_MASK		(1 << 17)
+
+/*
+ * This register controls the LVDS output enable, pipe selection, and data
+ * format selection.
+ *
+ * All of the clock/data pairs are force powered down by power sequencing.
+ */
+#define LVDS			0x61180
+/*
+ * Enables the LVDS port.  This bit must be set before DPLLs are enabled, as
+ * the DPLL semantics change when the LVDS is assigned to that pipe.
+ */
+#define LVDS_PORT_EN			(1 << 31)
+/* Selects pipe B for LVDS data.  Must be set on pre-965. */
+#define LVDS_PIPEB_SELECT		(1 << 30)
+
+/* Turns on border drawing to allow centered display. */
+#define LVDS_BORDER_EN			(1 << 15)
+
+/*
+ * Enables the A0-A2 data pairs and CLKA, containing 18 bits of color data per
+ * pixel.
+ */
+#define LVDS_A0A2_CLKA_POWER_MASK	(3 << 8)
+#define LVDS_A0A2_CLKA_POWER_DOWN	(0 << 8)
+#define LVDS_A0A2_CLKA_POWER_UP		(3 << 8)
+/*
+ * Controls the A3 data pair, which contains the additional LSBs for 24 bit
+ * mode.  Only enabled if LVDS_A0A2_CLKA_POWER_UP also indicates it should be
+ * on.
+ */
+#define LVDS_A3_POWER_MASK		(3 << 6)
+#define LVDS_A3_POWER_DOWN		(0 << 6)
+#define LVDS_A3_POWER_UP		(3 << 6)
+/*
+ * Controls the CLKB pair.  This should only be set when LVDS_B0B3_POWER_UP
+ * is set.
+ */
+#define LVDS_CLKB_POWER_MASK		(3 << 4)
+#define LVDS_CLKB_POWER_DOWN		(0 << 4)
+#define LVDS_CLKB_POWER_UP		(3 << 4)
+/*
+ * Controls the B0-B3 data pairs.  This must be set to match the DPLL p2
+ * setting for whether we are in dual-channel mode.  The B3 pair will
+ * additionally only be powered up when LVDS_A3_POWER_UP is set.
+ */
+#define LVDS_B0B3_POWER_MASK		(3 << 2)
+#define LVDS_B0B3_POWER_DOWN		(0 << 2)
+#define LVDS_B0B3_POWER_UP		(3 << 2)
+
+#define PIPEACONF		0x70008
+#define PIPEACONF_ENABLE		(1 << 31)
+#define PIPEACONF_DISABLE		0
+#define PIPEACONF_DOUBLE_WIDE		(1 << 30)
+#define PIPECONF_ACTIVE			(1 << 30)
+#define I965_PIPECONF_ACTIVE		(1 << 30)
+#define PIPECONF_DSIPLL_LOCK		(1 << 29)
+#define PIPEACONF_SINGLE_WIDE		0
+#define PIPEACONF_PIPE_UNLOCKED		0
+#define PIPEACONF_DSR			(1 << 26)
+#define PIPEACONF_PIPE_LOCKED		(1 << 25)
+#define PIPEACONF_PALETTE		0
+#define PIPECONF_FORCE_BORDER		(1 << 25)
+#define PIPEACONF_GAMMA			(1 << 24)
+#define PIPECONF_PROGRESSIVE		(0 << 21)
+#define PIPECONF_INTERLACE_W_FIELD_INDICATION	(6 << 21)
+#define PIPECONF_INTERLACE_FIELD_0_ONLY		(7 << 21)
+#define PIPECONF_PLANE_OFF		(1 << 19)
+#define PIPECONF_CURSOR_OFF		(1 << 18)
+
+#define PIPEBCONF		0x71008
+#define PIPEBCONF_ENABLE		(1 << 31)
+#define PIPEBCONF_DISABLE		0
+#define PIPEBCONF_DOUBLE_WIDE		(1 << 30)
+#define PIPEBCONF_DISABLE		0
+#define PIPEBCONF_GAMMA			(1 << 24)
+#define PIPEBCONF_PALETTE		0
+
+#define PIPECCONF		0x72008
+
+#define PIPEBGCMAXRED		0x71010
+#define PIPEBGCMAXGREEN		0x71014
+#define PIPEBGCMAXBLUE		0x71018
+
+#define PIPEASTAT		0x70024
+#define PIPEBSTAT		0x71024
+#define PIPECSTAT		0x72024
+#define PIPE_VBLANK_INTERRUPT_STATUS		(1UL << 1)
+#define PIPE_START_VBLANK_INTERRUPT_STATUS	(1UL << 2)
+#define PIPE_VBLANK_CLEAR			(1 << 1)
+#define PIPE_VBLANK_STATUS			(1 << 1)
+#define PIPE_TE_STATUS				(1UL << 6)
+#define PIPE_DPST_EVENT_STATUS			(1UL << 7)
+#define PIPE_VSYNC_CLEAR			(1UL << 9)
+#define PIPE_VSYNC_STATUS			(1UL << 9)
+#define PIPE_HDMI_AUDIO_UNDERRUN_STATUS		(1UL << 10)
+#define PIPE_HDMI_AUDIO_BUFFER_DONE_STATUS	(1UL << 11)
+#define PIPE_VBLANK_INTERRUPT_ENABLE		(1UL << 17)
+#define PIPE_START_VBLANK_INTERRUPT_ENABLE	(1UL << 18)
+#define PIPE_TE_ENABLE				(1UL << 22)
+#define PIPE_DPST_EVENT_ENABLE			(1UL << 23)
+#define PIPE_VSYNC_ENABL			(1UL << 25)
+#define PIPE_HDMI_AUDIO_UNDERRUN		(1UL << 26)
+#define PIPE_HDMI_AUDIO_BUFFER_DONE		(1UL << 27)
+#define PIPE_HDMI_AUDIO_INT_MASK		(PIPE_HDMI_AUDIO_UNDERRUN | \
+						PIPE_HDMI_AUDIO_BUFFER_DONE)
+#define PIPE_EVENT_MASK ((1 << 29)|(1 << 28)|(1 << 27)|(1 << 26)|(1 << 24)|(1 << 23)|(1 << 22)|(1 << 21)|(1 << 20)|(1 << 16))
+#define PIPE_VBLANK_MASK ((1 << 25)|(1 << 24)|(1 << 18)|(1 << 17))
+#define HISTOGRAM_INT_CONTROL		0x61268
+#define HISTOGRAM_BIN_DATA		0X61264
+#define HISTOGRAM_LOGIC_CONTROL		0x61260
+#define PWM_CONTROL_LOGIC		0x61250
+#define PIPE_HOTPLUG_INTERRUPT_STATUS		(1UL << 10)
+#define HISTOGRAM_INTERRUPT_ENABLE		(1UL << 31)
+#define HISTOGRAM_LOGIC_ENABLE			(1UL << 31)
+#define PWM_LOGIC_ENABLE			(1UL << 31)
+#define PWM_PHASEIN_ENABLE			(1UL << 25)
+#define PWM_PHASEIN_INT_ENABLE			(1UL << 24)
+#define PWM_PHASEIN_VB_COUNT			0x00001f00
+#define PWM_PHASEIN_INC				0x0000001f
+#define HISTOGRAM_INT_CTRL_CLEAR		(1UL << 30)
+#define DPST_YUV_LUMA_MODE			0
+
+struct dpst_ie_histogram_control {
+	union {
+		uint32_t data;
+		struct {
+			uint32_t bin_reg_index:7;
+			uint32_t reserved:4;
+			uint32_t bin_reg_func_select:1;
+			uint32_t sync_to_phase_in:1;
+			uint32_t alt_enhancement_mode:2;
+			uint32_t reserved1:1;
+			uint32_t sync_to_phase_in_count:8;
+			uint32_t histogram_mode_select:1;
+			uint32_t reserved2:4;
+			uint32_t ie_pipe_assignment:1;
+			uint32_t ie_mode_table_enabled:1;
+			uint32_t ie_histogram_enable:1;
+		};
+	};
+};
+
+struct dpst_guardband {
+	union {
+		uint32_t data;
+		struct {
+			uint32_t guardband:22;
+			uint32_t guardband_interrupt_delay:8;
+			uint32_t interrupt_status:1;
+			uint32_t interrupt_enable:1;
+		};
+	};
+};
+
+#define PIPEAFRAMEHIGH		0x70040
+#define PIPEAFRAMEPIXEL		0x70044
+#define PIPEBFRAMEHIGH		0x71040
+#define PIPEBFRAMEPIXEL		0x71044
+#define PIPECFRAMEHIGH		0x72040
+#define PIPECFRAMEPIXEL		0x72044
+#define PIPE_FRAME_HIGH_MASK	0x0000ffff
+#define PIPE_FRAME_HIGH_SHIFT	0
+#define PIPE_FRAME_LOW_MASK	0xff000000
+#define PIPE_FRAME_LOW_SHIFT	24
+#define PIPE_PIXEL_MASK		0x00ffffff
+#define PIPE_PIXEL_SHIFT	0
+
+#define DSPARB			0x70030
+#define DSPFW1			0x70034
+#define DSPFW2			0x70038
+#define DSPFW3			0x7003c
+#define DSPFW4			0x70050
+#define DSPFW5			0x70054
+#define DSPFW6			0x70058
+#define DSPCHICKENBIT		0x70400
+#define DSPACNTR		0x70180
+#define DSPBCNTR		0x71180
+#define DSPCCNTR		0x72180
+#define DISPLAY_PLANE_ENABLE			(1 << 31)
+#define DISPLAY_PLANE_DISABLE			0
+#define DISPPLANE_GAMMA_ENABLE			(1 << 30)
+#define DISPPLANE_GAMMA_DISABLE			0
+#define DISPPLANE_PIXFORMAT_MASK		(0xf << 26)
+#define DISPPLANE_8BPP				(0x2 << 26)
+#define DISPPLANE_15_16BPP			(0x4 << 26)
+#define DISPPLANE_16BPP				(0x5 << 26)
+#define DISPPLANE_32BPP_NO_ALPHA		(0x6 << 26)
+#define DISPPLANE_32BPP				(0x7 << 26)
+#define DISPPLANE_STEREO_ENABLE			(1 << 25)
+#define DISPPLANE_STEREO_DISABLE		0
+#define DISPPLANE_SEL_PIPE_MASK			(1 << 24)
+#define DISPPLANE_SEL_PIPE_POS			24
+#define DISPPLANE_SEL_PIPE_A			0
+#define DISPPLANE_SEL_PIPE_B			(1 << 24)
+#define DISPPLANE_SRC_KEY_ENABLE		(1 << 22)
+#define DISPPLANE_SRC_KEY_DISABLE		0
+#define DISPPLANE_LINE_DOUBLE			(1 << 20)
+#define DISPPLANE_NO_LINE_DOUBLE		0
+#define DISPPLANE_STEREO_POLARITY_FIRST		0
+#define DISPPLANE_STEREO_POLARITY_SECOND	(1 << 18)
+/* plane B only */
+#define DISPPLANE_ALPHA_TRANS_ENABLE		(1 << 15)
+#define DISPPLANE_ALPHA_TRANS_DISABLE		0
+#define DISPPLANE_SPRITE_ABOVE_DISPLAYA		0
+#define DISPPLANE_SPRITE_ABOVE_OVERLAY		(1)
+#define DISPPLANE_BOTTOM			(4)
+
+#define DSPABASE		0x70184
+#define DSPALINOFF		0x70184
+#define DSPASTRIDE		0x70188
+
+#define DSPBBASE		0x71184
+#define DSPBLINOFF		0X71184
+#define DSPBADDR		DSPBBASE
+#define DSPBSTRIDE		0x71188
+
+#define DSPCBASE		0x72184
+#define DSPCLINOFF		0x72184
+#define DSPCSTRIDE		0x72188
+
+#define DSPAKEYVAL		0x70194
+#define DSPAKEYMASK		0x70198
+
+#define DSPAPOS			0x7018C	/* reserved */
+#define DSPASIZE		0x70190
+#define DSPBPOS			0x7118C
+#define DSPBSIZE		0x71190
+#define DSPCPOS			0x7218C
+#define DSPCSIZE		0x72190
+
+#define DSPASURF		0x7019C
+#define DSPATILEOFF		0x701A4
+
+#define DSPBSURF		0x7119C
+#define DSPBTILEOFF		0x711A4
+
+#define DSPCSURF		0x7219C
+#define DSPCTILEOFF		0x721A4
+#define DSPCKEYMAXVAL		0x721A0
+#define DSPCKEYMINVAL		0x72194
+#define DSPCKEYMSK		0x72198
+
+#define VGACNTRL		0x71400
+#define VGA_DISP_DISABLE		(1 << 31)
+#define VGA_2X_MODE			(1 << 30)
+#define VGA_PIPE_B_SELECT		(1 << 29)
+
+/*
+ * Overlay registers
+ */
+#define OV_C_OFFSET		0x08000
+#define OV_OVADD		0x30000
+#define OV_DOVASTA		0x30008
+# define OV_PIPE_SELECT			((1 << 6)|(1 << 7))
+# define OV_PIPE_SELECT_POS		6
+# define OV_PIPE_A			0
+# define OV_PIPE_C			1
+#define OV_OGAMC5		0x30010
+#define OV_OGAMC4		0x30014
+#define OV_OGAMC3		0x30018
+#define OV_OGAMC2		0x3001C
+#define OV_OGAMC1		0x30020
+#define OV_OGAMC0		0x30024
+#define OVC_OVADD		0x38000
+#define OVC_DOVCSTA		0x38008
+#define OVC_OGAMC5		0x38010
+#define OVC_OGAMC4		0x38014
+#define OVC_OGAMC3		0x38018
+#define OVC_OGAMC2		0x3801C
+#define OVC_OGAMC1		0x38020
+#define OVC_OGAMC0		0x38024
+
+/*
+ * Some BIOS scratch area registers.  The 845 (and 830?) store the amount
+ * of video memory available to the BIOS in SWF1.
+ */
+#define SWF0			0x71410
+#define SWF1			0x71414
+#define SWF2			0x71418
+#define SWF3			0x7141c
+#define SWF4			0x71420
+#define SWF5			0x71424
+#define SWF6			0x71428
+
+/*
+ * 855 scratch registers.
+ */
+#define SWF00			0x70410
+#define SWF01			0x70414
+#define SWF02			0x70418
+#define SWF03			0x7041c
+#define SWF04			0x70420
+#define SWF05			0x70424
+#define SWF06			0x70428
+
+#define SWF10			SWF0
+#define SWF11			SWF1
+#define SWF12			SWF2
+#define SWF13			SWF3
+#define SWF14			SWF4
+#define SWF15			SWF5
+#define SWF16			SWF6
+
+#define SWF30			0x72414
+#define SWF31			0x72418
+#define SWF32			0x7241c
+
+
+/*
+ * Palette registers
+ */
+#define PALETTE_A		0x0a000
+#define PALETTE_B		0x0a800
+#define PALETTE_C		0x0ac00
+
+/* Cursor A & B regs */
+#define CURACNTR		0x70080
+#define CURSOR_MODE_DISABLE		0x00
+#define CURSOR_MODE_64_32B_AX		0x07
+#define CURSOR_MODE_64_ARGB_AX		((1 << 5) | CURSOR_MODE_64_32B_AX)
+#define MCURSOR_GAMMA_ENABLE		(1 << 26)
+#define CURABASE		0x70084
+#define CURAPOS			0x70088
+#define CURSOR_POS_MASK			0x007FF
+#define CURSOR_POS_SIGN			0x8000
+#define CURSOR_X_SHIFT			0
+#define CURSOR_Y_SHIFT			16
+#define CURBCNTR		0x700c0
+#define CURBBASE		0x700c4
+#define CURBPOS			0x700c8
+#define CURCCNTR		0x700e0
+#define CURCBASE		0x700e4
+#define CURCPOS			0x700e8
+
+/*
+ * Interrupt Registers
+ */
+#define IER			0x020a0
+#define IIR			0x020a4
+#define IMR			0x020a8
+#define ISR			0x020ac
+
+/*
+ * MOORESTOWN delta registers
+ */
+#define MRST_DPLL_A		0x0f014
+#define MDFLD_DPLL_B		0x0f018
+#define MDFLD_INPUT_REF_SEL		(1 << 14)
+#define MDFLD_VCO_SEL			(1 << 16)
+#define DPLLA_MODE_LVDS			(2 << 26)	/* mrst */
+#define MDFLD_PLL_LATCHEN		(1 << 28)
+#define MDFLD_PWR_GATE_EN		(1 << 30)
+#define MDFLD_P1_MASK			(0x1FF << 17)
+#define MRST_FPA0		0x0f040
+#define MRST_FPA1		0x0f044
+#define MDFLD_DPLL_DIV0		0x0f048
+#define MDFLD_DPLL_DIV1		0x0f04c
+#define MRST_PERF_MODE		0x020f4
+
+/*
+ * MEDFIELD HDMI registers
+ */
+#define HDMIPHYMISCCTL		0x61134
+#define HDMI_PHY_POWER_DOWN		0x7f
+#define HDMIB_CONTROL		0x61140
+#define HDMIB_PORT_EN			(1 << 31)
+#define HDMIB_PIPE_B_SELECT		(1 << 30)
+#define HDMIB_NULL_PACKET		(1 << 9)
+#define HDMIB_HDCP_PORT			(1 << 5)
+
+/* #define LVDS			0x61180 */
+#define MRST_PANEL_8TO6_DITHER_ENABLE	(1 << 25)
+#define MRST_PANEL_24_DOT_1_FORMAT	(1 << 24)
+#define LVDS_A3_POWER_UP_0_OUTPUT	(1 << 6)
+
+#define MIPI			0x61190
+#define MIPI_C			0x62190
+#define MIPI_PORT_EN			(1 << 31)
+/* Turns on border drawing to allow centered display. */
+#define SEL_FLOPPED_HSTX		(1 << 23)
+#define PASS_FROM_SPHY_TO_AFE		(1 << 16)
+#define MIPI_BORDER_EN			(1 << 15)
+#define MIPIA_3LANE_MIPIC_1LANE		0x1
+#define MIPIA_2LANE_MIPIC_2LANE		0x2
+#define TE_TRIGGER_DSI_PROTOCOL		(1 << 2)
+#define TE_TRIGGER_GPIO_PIN		(1 << 3)
+#define MIPI_TE_COUNT		0x61194
+
+/* #define PP_CONTROL	0x61204 */
+#define POWER_DOWN_ON_RESET		(1 << 1)
+
+/* #define PFIT_CONTROL	0x61230 */
+#define PFIT_PIPE_SELECT		(3 << 29)
+#define PFIT_PIPE_SELECT_SHIFT		(29)
+
+/* #define BLC_PWM_CTL		0x61254 */
+#define MRST_BACKLIGHT_MODULATION_FREQ_SHIFT	(16)
+#define MRST_BACKLIGHT_MODULATION_FREQ_MASK	(0xffff << 16)
+
+/* #define PIPEACONF 0x70008 */
+#define PIPEACONF_PIPE_STATE		(1 << 30)
+/* #define DSPACNTR		0x70180 */
+
+#define MRST_DSPABASE		0x7019c
+#define MRST_DSPBBASE		0x7119c
+#define MDFLD_DSPCBASE		0x7219c
+
+/*
+ * Moorestown registers.
+ */
+
+/*
+ *	MIPI IP registers
+ */
+#define MIPIC_REG_OFFSET		0x800
+
+#define DEVICE_READY_REG		0xb000
+#define LP_OUTPUT_HOLD				(1 << 16)
+#define EXIT_ULPS_DEV_READY			0x3
+#define LP_OUTPUT_HOLD_RELEASE			0x810000
+# define ENTERING_ULPS				(2 << 1)
+# define EXITING_ULPS				(1 << 1)
+# define ULPS_MASK				(3 << 1)
+# define BUS_POSSESSION				(1 << 3)
+#define INTR_STAT_REG			0xb004
+#define RX_SOT_ERROR				(1 << 0)
+#define RX_SOT_SYNC_ERROR			(1 << 1)
+#define RX_ESCAPE_MODE_ENTRY_ERROR		(1 << 3)
+#define RX_LP_TX_SYNC_ERROR			(1 << 4)
+#define RX_HS_RECEIVE_TIMEOUT_ERROR		(1 << 5)
+#define RX_FALSE_CONTROL_ERROR			(1 << 6)
+#define RX_ECC_SINGLE_BIT_ERROR			(1 << 7)
+#define RX_ECC_MULTI_BIT_ERROR			(1 << 8)
+#define RX_CHECKSUM_ERROR			(1 << 9)
+#define RX_DSI_DATA_TYPE_NOT_RECOGNIZED		(1 << 10)
+#define RX_DSI_VC_ID_INVALID			(1 << 11)
+#define TX_FALSE_CONTROL_ERROR			(1 << 12)
+#define TX_ECC_SINGLE_BIT_ERROR			(1 << 13)
+#define TX_ECC_MULTI_BIT_ERROR			(1 << 14)
+#define TX_CHECKSUM_ERROR			(1 << 15)
+#define TX_DSI_DATA_TYPE_NOT_RECOGNIZED		(1 << 16)
+#define TX_DSI_VC_ID_INVALID			(1 << 17)
+#define HIGH_CONTENTION				(1 << 18)
+#define LOW_CONTENTION				(1 << 19)
+#define DPI_FIFO_UNDER_RUN			(1 << 20)
+#define HS_TX_TIMEOUT				(1 << 21)
+#define LP_RX_TIMEOUT				(1 << 22)
+#define TURN_AROUND_ACK_TIMEOUT			(1 << 23)
+#define ACK_WITH_NO_ERROR			(1 << 24)
+#define HS_GENERIC_WR_FIFO_FULL			(1 << 27)
+#define LP_GENERIC_WR_FIFO_FULL			(1 << 28)
+#define SPL_PKT_SENT				(1 << 30)
+#define INTR_EN_REG			0xb008
+#define DSI_FUNC_PRG_REG		0xb00c
+#define DPI_CHANNEL_NUMBER_POS			0x03
+#define DBI_CHANNEL_NUMBER_POS			0x05
+#define FMT_DPI_POS				0x07
+#define FMT_DBI_POS				0x0A
+#define DBI_DATA_WIDTH_POS			0x0D
+
+/* DPI PIXEL FORMATS */
+#define RGB_565_FMT				0x01	/* RGB 565 FORMAT */
+#define RGB_666_FMT				0x02	/* RGB 666 FORMAT */
+#define LRGB_666_FMT				0x03	/* RGB LOOSELY PACKED
+							 * 666 FORMAT
+							 */
+#define RGB_888_FMT				0x04	/* RGB 888 FORMAT */
+#define VIRTUAL_CHANNEL_NUMBER_0		0x00	/* Virtual channel 0 */
+#define VIRTUAL_CHANNEL_NUMBER_1		0x01	/* Virtual channel 1 */
+#define VIRTUAL_CHANNEL_NUMBER_2		0x02	/* Virtual channel 2 */
+#define VIRTUAL_CHANNEL_NUMBER_3		0x03	/* Virtual channel 3 */
+
+#define DBI_NOT_SUPPORTED			0x00	/* command mode
+							 * is not supported
+							 */
+#define DBI_DATA_WIDTH_16BIT			0x01	/* 16 bit data */
+#define DBI_DATA_WIDTH_9BIT			0x02	/* 9 bit data */
+#define DBI_DATA_WIDTH_8BIT			0x03	/* 8 bit data */
+#define DBI_DATA_WIDTH_OPT1			0x04	/* option 1 */
+#define DBI_DATA_WIDTH_OPT2			0x05	/* option 2 */
+
+#define HS_TX_TIMEOUT_REG		0xb010
+#define LP_RX_TIMEOUT_REG		0xb014
+#define TURN_AROUND_TIMEOUT_REG		0xb018
+#define DEVICE_RESET_REG		0xb01C
+#define DPI_RESOLUTION_REG		0xb020
+#define RES_V_POS				0x10
+#define DBI_RESOLUTION_REG		0xb024 /* Reserved for MDFLD */
+#define HORIZ_SYNC_PAD_COUNT_REG	0xb028
+#define HORIZ_BACK_PORCH_COUNT_REG	0xb02C
+#define HORIZ_FRONT_PORCH_COUNT_REG	0xb030
+#define HORIZ_ACTIVE_AREA_COUNT_REG	0xb034
+#define VERT_SYNC_PAD_COUNT_REG		0xb038
+#define VERT_BACK_PORCH_COUNT_REG	0xb03c
+#define VERT_FRONT_PORCH_COUNT_REG	0xb040
+#define HIGH_LOW_SWITCH_COUNT_REG	0xb044
+#define DPI_CONTROL_REG			0xb048
+#define DPI_SHUT_DOWN				(1 << 0)
+#define DPI_TURN_ON				(1 << 1)
+#define DPI_COLOR_MODE_ON			(1 << 2)
+#define DPI_COLOR_MODE_OFF			(1 << 3)
+#define DPI_BACK_LIGHT_ON			(1 << 4)
+#define DPI_BACK_LIGHT_OFF			(1 << 5)
+#define DPI_LP					(1 << 6)
+#define DPI_DATA_REG			0xb04c
+#define DPI_BACK_LIGHT_ON_DATA			0x07
+#define DPI_BACK_LIGHT_OFF_DATA			0x17
+#define INIT_COUNT_REG			0xb050
+#define MAX_RET_PAK_REG			0xb054
+#define VIDEO_FMT_REG			0xb058
+#define COMPLETE_LAST_PCKT			(1 << 2)
+#define EOT_DISABLE_REG			0xb05c
+#define ENABLE_CLOCK_STOPPING			(1 << 1)
+#define LP_BYTECLK_REG			0xb060
+#define LP_GEN_DATA_REG			0xb064
+#define HS_GEN_DATA_REG			0xb068
+#define LP_GEN_CTRL_REG			0xb06C
+#define HS_GEN_CTRL_REG			0xb070
+#define DCS_CHANNEL_NUMBER_POS		0x6
+#define MCS_COMMANDS_POS		0x8
+#define WORD_COUNTS_POS			0x8
+#define MCS_PARAMETER_POS			0x10
+#define GEN_FIFO_STAT_REG		0xb074
+#define HS_DATA_FIFO_FULL			(1 << 0)
+#define HS_DATA_FIFO_HALF_EMPTY			(1 << 1)
+#define HS_DATA_FIFO_EMPTY			(1 << 2)
+#define LP_DATA_FIFO_FULL			(1 << 8)
+#define LP_DATA_FIFO_HALF_EMPTY			(1 << 9)
+#define LP_DATA_FIFO_EMPTY			(1 << 10)
+#define HS_CTRL_FIFO_FULL			(1 << 16)
+#define HS_CTRL_FIFO_HALF_EMPTY			(1 << 17)
+#define HS_CTRL_FIFO_EMPTY			(1 << 18)
+#define LP_CTRL_FIFO_FULL			(1 << 24)
+#define LP_CTRL_FIFO_HALF_EMPTY			(1 << 25)
+#define LP_CTRL_FIFO_EMPTY			(1 << 26)
+#define DBI_FIFO_EMPTY				(1 << 27)
+#define DPI_FIFO_EMPTY				(1 << 28)
+#define HS_LS_DBI_ENABLE_REG		0xb078
+#define TXCLKESC_REG			0xb07c
+#define DPHY_PARAM_REG			0xb080
+#define DBI_BW_CTRL_REG			0xb084
+#define CLK_LANE_SWT_REG		0xb088
+
+/*
+ * MIPI Adapter registers
+ */
+#define MIPI_CONTROL_REG		0xb104
+#define MIPI_2X_CLOCK_BITS			((1 << 0) | (1 << 1))
+#define MIPI_DATA_ADDRESS_REG		0xb108
+#define MIPI_DATA_LENGTH_REG		0xb10C
+#define MIPI_COMMAND_ADDRESS_REG	0xb110
+#define MIPI_COMMAND_LENGTH_REG		0xb114
+#define MIPI_READ_DATA_RETURN_REG0	0xb118
+#define MIPI_READ_DATA_RETURN_REG1	0xb11C
+#define MIPI_READ_DATA_RETURN_REG2	0xb120
+#define MIPI_READ_DATA_RETURN_REG3	0xb124
+#define MIPI_READ_DATA_RETURN_REG4	0xb128
+#define MIPI_READ_DATA_RETURN_REG5	0xb12C
+#define MIPI_READ_DATA_RETURN_REG6	0xb130
+#define MIPI_READ_DATA_RETURN_REG7	0xb134
+#define MIPI_READ_DATA_VALID_REG	0xb138
+
+/* DBI COMMANDS */
+#define soft_reset			0x01
+/*
+ *	The display module performs a software reset.
+ *	Registers are written with their SW Reset default values.
+ */
+#define get_power_mode			0x0a
+/*
+ *	The display module returns the current power mode
+ */
+#define get_address_mode		0x0b
+/*
+ *	The display module returns the current status.
+ */
+#define get_pixel_format		0x0c
+/*
+ *	This command gets the pixel format for the RGB image data
+ *	used by the interface.
+ */
+#define get_display_mode		0x0d
+/*
+ *	The display module returns the Display Image Mode status.
+ */
+#define get_signal_mode			0x0e
+/*
+ *	The display module returns the Display Signal Mode.
+ */
+#define get_diagnostic_result		0x0f
+/*
+ *	The display module returns the self-diagnostic results following
+ *	a Sleep Out command.
+ */
+#define enter_sleep_mode		0x10
+/*
+ *	This command causes the display module to enter the Sleep mode.
+ *	In this mode, all unnecessary blocks inside the display module are
+ *	disabled except interface communication. This is the lowest power
+ *	mode the display module supports.
+ */
+#define exit_sleep_mode			0x11
+/*
+ *	This command causes the display module to exit Sleep mode.
+ *	All blocks inside the display module are enabled.
+ */
+#define enter_partial_mode		0x12
+/*
+ *	This command causes the display module to enter the Partial Display
+ *	Mode. The Partial Display Mode window is described by the
+ *	set_partial_area command.
+ */
+#define enter_normal_mode		0x13
+/*
+ *	This command causes the display module to enter the Normal mode.
+ *	Normal Mode is defined as Partial Display mode and Scroll mode are off
+ */
+#define exit_invert_mode		0x20
+/*
+ *	This command causes the display module to stop inverting the image
+ *	data on the display device. The frame memory contents remain unchanged.
+ *	No status bits are changed.
+ */
+#define enter_invert_mode		0x21
+/*
+ *	This command causes the display module to invert the image data only on
+ *	the display device. The frame memory contents remain unchanged.
+ *	No status bits are changed.
+ */
+#define set_gamma_curve			0x26
+/*
+ *	This command selects the desired gamma curve for the display device.
+ *	Four fixed gamma curves are defined in section DCS spec.
+ */
+#define set_display_off			0x28
+/* ************************************************************************* *\
+This command causes the display module to stop displaying the image data
+on the display device. The frame memory contents remain unchanged.
+No status bits are changed.
+\* ************************************************************************* */
+#define set_display_on			0x29
+/* ************************************************************************* *\
+This command causes the display module to start displaying the image data
+on the display device. The frame memory contents remain unchanged.
+No status bits are changed.
+\* ************************************************************************* */
+#define set_column_address		0x2a
+/*
+ *	This command defines the column extent of the frame memory accessed by
+ *	the hostprocessor with the read_memory_continue and
+ *	write_memory_continue commands.
+ *	No status bits are changed.
+ */
+#define set_page_addr			0x2b
+/*
+ *	This command defines the page extent of the frame memory accessed by
+ *	the host processor with the write_memory_continue and
+ *	read_memory_continue command.
+ *	No status bits are changed.
+ */
+#define write_mem_start			0x2c
+/*
+ *	This command transfers image data from the host processor to the
+ *	display modules frame memory starting at the pixel location specified
+ *	by preceding set_column_address and set_page_address commands.
+ */
+#define set_partial_area		0x30
+/*
+ *	This command defines the Partial Display mode s display area.
+ *	There are two parameters associated with this command, the first
+ *	defines the Start Row (SR) and the second the End Row (ER). SR and ER
+ *	refer to the Frame Memory Line Pointer.
+ */
+#define set_scroll_area			0x33
+/*
+ *	This command defines the display modules Vertical Scrolling Area.
+ */
+#define set_tear_off			0x34
+/*
+ *	This command turns off the display modules Tearing Effect output
+ *	signal on the TE signal line.
+ */
+#define set_tear_on			0x35
+/*
+ *	This command turns on the display modules Tearing Effect output signal
+ *	on the TE signal line.
+ */
+#define set_address_mode		0x36
+/*
+ *	This command sets the data order for transfers from the host processor
+ *	to display modules frame memory,bits B[7:5] and B3, and from the
+ *	display modules frame memory to the display device, bits B[2:0] and B4.
+ */
+#define set_scroll_start		0x37
+/*
+ *	This command sets the start of the vertical scrolling area in the frame
+ *	memory. The vertical scrolling area is fully defined when this command
+ *	is used with the set_scroll_area command The set_scroll_start command
+ *	has one parameter, the Vertical Scroll Pointer. The VSP defines the
+ *	line in the frame memory that is written to the display device as the
+ *	first line of the vertical scroll area.
+ */
+#define exit_idle_mode			0x38
+/*
+ *	This command causes the display module to exit Idle mode.
+ */
+#define enter_idle_mode			0x39
+/*
+ *	This command causes the display module to enter Idle Mode.
+ *	In Idle Mode, color expression is reduced. Colors are shown on the
+ *	display device using the MSB of each of the R, G and B color
+ *	components in the frame memory
+ */
+#define set_pixel_format		0x3a
+/*
+ *	This command sets the pixel format for the RGB image data used by the
+ *	interface.
+ *	Bits D[6:4]  DPI Pixel Format Definition
+ *	Bits D[2:0]  DBI Pixel Format Definition
+ *	Bits D7 and D3 are not used.
+ */
+#define DCS_PIXEL_FORMAT_3bpp		0x1
+#define DCS_PIXEL_FORMAT_8bpp		0x2
+#define DCS_PIXEL_FORMAT_12bpp		0x3
+#define DCS_PIXEL_FORMAT_16bpp		0x5
+#define DCS_PIXEL_FORMAT_18bpp		0x6
+#define DCS_PIXEL_FORMAT_24bpp		0x7
+
+#define write_mem_cont			0x3c
+
+/*
+ *	This command transfers image data from the host processor to the
+ *	display module's frame memory continuing from the pixel location
+ *	following the previous write_memory_continue or write_memory_start
+ *	command.
+ */
+#define set_tear_scanline		0x44
+/*
+ *	This command turns on the display modules Tearing Effect output signal
+ *	on the TE signal line when the display module reaches line N.
+ */
+#define get_scanline			0x45
+/*
+ *	The display module returns the current scanline, N, used to update the
+ *	 display device. The total number of scanlines on a display device is
+ *	defined as VSYNC + VBP + VACT + VFP.The first scanline is defined as
+ *	the first line of V Sync and is denoted as Line 0.
+ *	When in Sleep Mode, the value returned by get_scanline is undefined.
+ */
+
+/* MCS or Generic COMMANDS */
+/* MCS/generic data type */
+#define GEN_SHORT_WRITE_0	0x03  /* generic short write, no parameters */
+#define GEN_SHORT_WRITE_1	0x13  /* generic short write, 1 parameters */
+#define GEN_SHORT_WRITE_2	0x23  /* generic short write, 2 parameters */
+#define GEN_READ_0		0x04  /* generic read, no parameters */
+#define GEN_READ_1		0x14  /* generic read, 1 parameters */
+#define GEN_READ_2		0x24  /* generic read, 2 parameters */
+#define GEN_LONG_WRITE		0x29  /* generic long write */
+#define MCS_SHORT_WRITE_0	0x05  /* MCS short write, no parameters */
+#define MCS_SHORT_WRITE_1	0x15  /* MCS short write, 1 parameters */
+#define MCS_READ		0x06  /* MCS read, no parameters */
+#define MCS_LONG_WRITE		0x39  /* MCS long write */
+/* MCS/generic commands */
+/* TPO MCS */
+#define write_display_profile		0x50
+#define write_display_brightness	0x51
+#define write_ctrl_display		0x53
+#define write_ctrl_cabc			0x55
+  #define UI_IMAGE		0x01
+  #define STILL_IMAGE		0x02
+  #define MOVING_IMAGE		0x03
+#define write_hysteresis		0x57
+#define write_gamma_setting		0x58
+#define write_cabc_min_bright		0x5e
+#define write_kbbc_profile		0x60
+/* TMD MCS */
+#define tmd_write_display_brightness 0x8c
+
+/*
+ *	This command is used to control ambient light, panel backlight
+ *	brightness and gamma settings.
+ */
+#define BRIGHT_CNTL_BLOCK_ON	(1 << 5)
+#define AMBIENT_LIGHT_SENSE_ON	(1 << 4)
+#define DISPLAY_DIMMING_ON	(1 << 3)
+#define BACKLIGHT_ON		(1 << 2)
+#define DISPLAY_BRIGHTNESS_AUTO	(1 << 1)
+#define GAMMA_AUTO		(1 << 0)
+
+/* DCS Interface Pixel Formats */
+#define DCS_PIXEL_FORMAT_3BPP	0x1
+#define DCS_PIXEL_FORMAT_8BPP	0x2
+#define DCS_PIXEL_FORMAT_12BPP	0x3
+#define DCS_PIXEL_FORMAT_16BPP	0x5
+#define DCS_PIXEL_FORMAT_18BPP	0x6
+#define DCS_PIXEL_FORMAT_24BPP	0x7
+/* ONE PARAMETER READ DATA */
+#define addr_mode_data		0xfc
+#define diag_res_data		0x00
+#define disp_mode_data		0x23
+#define pxl_fmt_data		0x77
+#define pwr_mode_data		0x74
+#define sig_mode_data		0x00
+/* TWO PARAMETERS READ DATA */
+#define scanline_data1		0xff
+#define scanline_data2		0xff
+#define NON_BURST_MODE_SYNC_PULSE	0x01	/* Non Burst Mode
+						 * with Sync Pulse
+						 */
+#define NON_BURST_MODE_SYNC_EVENTS	0x02	/* Non Burst Mode
+						 * with Sync events
+						 */
+#define BURST_MODE			0x03	/* Burst Mode */
+#define DBI_COMMAND_BUFFER_SIZE		0x240   /* 0x32 */    /* 0x120 */
+						/* Allocate at least
+						 * 0x100 Byte with 32
+						 * byte alignment
+						 */
+#define DBI_DATA_BUFFER_SIZE		0x120	/* Allocate at least
+						 * 0x100 Byte with 32
+						 * byte alignment
+						 */
+#define DBI_CB_TIME_OUT			0xFFFF
+
+#define GEN_FB_TIME_OUT			2000
+
+#define SKU_83				0x01
+#define SKU_100				0x02
+#define SKU_100L			0x04
+#define SKU_BYPASS			0x08
+
+/* Some handy macros for playing with bitfields. */
+#define PSB_MASK(high, low) (((1<<((high)-(low)+1))-1)<<(low))
+#define SET_FIELD(value, field) (((value) << field ## _SHIFT) & field ## _MASK)
+#define GET_FIELD(word, field) (((word)  & field ## _MASK) >> field ## _SHIFT)
+
+#define _PIPE(pipe, a, b) ((a) + (pipe)*((b)-(a)))
+
+/* PCI config space */
+
+#define SB_PCKT         0x02100 /* cedarview */
+# define SB_OPCODE_MASK                         PSB_MASK(31, 16)
+# define SB_OPCODE_SHIFT                        16
+# define SB_OPCODE_READ                         0
+# define SB_OPCODE_WRITE                        1
+# define SB_DEST_MASK                           PSB_MASK(15, 8)
+# define SB_DEST_SHIFT                          8
+# define SB_DEST_DPLL                           0x88
+# define SB_BYTE_ENABLE_MASK                    PSB_MASK(7, 4)
+# define SB_BYTE_ENABLE_SHIFT                   4
+# define SB_BUSY                                (1 << 0)
+
+
+/* 32-bit value read/written from the DPIO reg. */
+#define SB_DATA		0x02104 /* cedarview */
+/* 32-bit address of the DPIO reg to be read/written. */
+#define SB_ADDR		0x02108 /* cedarview */
+#define DPIO_CFG	0x02110 /* cedarview */
+# define DPIO_MODE_SELECT_1			(1 << 3)
+# define DPIO_MODE_SELECT_0			(1 << 2)
+# define DPIO_SFR_BYPASS			(1 << 1)
+/* reset is active low */
+# define DPIO_CMN_RESET_N			(1 << 0)
+
+/* Cedarview sideband registers */
+#define _SB_M_A			0x8008
+#define _SB_M_B			0x8028
+#define SB_M(pipe) _PIPE(pipe, _SB_M_A, _SB_M_B)
+# define SB_M_DIVIDER_MASK			(0xFF << 24)
+# define SB_M_DIVIDER_SHIFT			24
+
+#define _SB_N_VCO_A		0x8014
+#define _SB_N_VCO_B		0x8034
+#define SB_N_VCO(pipe) _PIPE(pipe, _SB_N_VCO_A, _SB_N_VCO_B)
+#define SB_N_VCO_SEL_MASK			PSB_MASK(31, 30)
+#define SB_N_VCO_SEL_SHIFT			30
+#define SB_N_DIVIDER_MASK			PSB_MASK(29, 26)
+#define SB_N_DIVIDER_SHIFT			26
+#define SB_N_CB_TUNE_MASK			PSB_MASK(25, 24)
+#define SB_N_CB_TUNE_SHIFT			24
+
+#define _SB_REF_A		0x8018
+#define _SB_REF_B		0x8038
+#define SB_REF_SFR(pipe)	_PIPE(pipe, _SB_REF_A, _SB_REF_B)
+
+#define _SB_P_A			0x801c
+#define _SB_P_B			0x803c
+#define SB_P(pipe) _PIPE(pipe, _SB_P_A, _SB_P_B)
+#define SB_P2_DIVIDER_MASK			PSB_MASK(31, 30)
+#define SB_P2_DIVIDER_SHIFT			30
+#define SB_P2_10				0 /* HDMI, DP, DAC */
+#define SB_P2_5				1 /* DAC */
+#define SB_P2_14				2 /* LVDS single */
+#define SB_P2_7				3 /* LVDS double */
+#define SB_P1_DIVIDER_MASK			PSB_MASK(15, 12)
+#define SB_P1_DIVIDER_SHIFT			12
+
+#define PSB_LANE0		0x120
+#define PSB_LANE1		0x220
+#define PSB_LANE2		0x2320
+#define PSB_LANE3		0x2420
+
+#define LANE_PLL_MASK		(0x7 << 20)
+#define LANE_PLL_ENABLE		(0x3 << 20)
+
+
+#endif
diff --git a/drivers/gpu/drm/gma500/psb_intel_sdvo.c b/drivers/gpu/drm/gma500/psb_intel_sdvo.c
new file mode 100644
index 000000000000..4882b29119e0
--- /dev/null
+++ b/drivers/gpu/drm/gma500/psb_intel_sdvo.c
@@ -0,0 +1,2617 @@
+/*
+ * Copyright 2006 Dave Airlie <airlied@linux.ie>
+ * Copyright © 2006-2007 Intel Corporation
+ *   Jesse Barnes <jesse.barnes@intel.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *	Eric Anholt <eric@anholt.net>
+ */
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/slab.h>
+#include <linux/delay.h>
+#include "drmP.h"
+#include "drm.h"
+#include "drm_crtc.h"
+#include "drm_edid.h"
+#include "psb_intel_drv.h"
+#include "gma_drm.h"
+#include "psb_drv.h"
+#include "psb_intel_sdvo_regs.h"
+#include "psb_intel_reg.h"
+
+#define SDVO_TMDS_MASK (SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_TMDS1)
+#define SDVO_RGB_MASK  (SDVO_OUTPUT_RGB0 | SDVO_OUTPUT_RGB1)
+#define SDVO_LVDS_MASK (SDVO_OUTPUT_LVDS0 | SDVO_OUTPUT_LVDS1)
+#define SDVO_TV_MASK   (SDVO_OUTPUT_CVBS0 | SDVO_OUTPUT_SVID0)
+
+#define SDVO_OUTPUT_MASK (SDVO_TMDS_MASK | SDVO_RGB_MASK | SDVO_LVDS_MASK |\
+                         SDVO_TV_MASK)
+
+#define IS_TV(c)	(c->output_flag & SDVO_TV_MASK)
+#define IS_TMDS(c)	(c->output_flag & SDVO_TMDS_MASK)
+#define IS_LVDS(c)	(c->output_flag & SDVO_LVDS_MASK)
+#define IS_TV_OR_LVDS(c) (c->output_flag & (SDVO_TV_MASK | SDVO_LVDS_MASK))
+
+
+static const char *tv_format_names[] = {
+	"NTSC_M"   , "NTSC_J"  , "NTSC_443",
+	"PAL_B"    , "PAL_D"   , "PAL_G"   ,
+	"PAL_H"    , "PAL_I"   , "PAL_M"   ,
+	"PAL_N"    , "PAL_NC"  , "PAL_60"  ,
+	"SECAM_B"  , "SECAM_D" , "SECAM_G" ,
+	"SECAM_K"  , "SECAM_K1", "SECAM_L" ,
+	"SECAM_60"
+};
+
+#define TV_FORMAT_NUM  (sizeof(tv_format_names) / sizeof(*tv_format_names))
+
+struct psb_intel_sdvo {
+	struct psb_intel_encoder base;
+
+	struct i2c_adapter *i2c;
+	u8 slave_addr;
+
+	struct i2c_adapter ddc;
+
+	/* Register for the SDVO device: SDVOB or SDVOC */
+	int sdvo_reg;
+
+	/* Active outputs controlled by this SDVO output */
+	uint16_t controlled_output;
+
+	/*
+	 * Capabilities of the SDVO device returned by
+	 * i830_sdvo_get_capabilities()
+	 */
+	struct psb_intel_sdvo_caps caps;
+
+	/* Pixel clock limitations reported by the SDVO device, in kHz */
+	int pixel_clock_min, pixel_clock_max;
+
+	/*
+	* For multiple function SDVO device,
+	* this is for current attached outputs.
+	*/
+	uint16_t attached_output;
+
+	/**
+	 * This is used to select the color range of RBG outputs in HDMI mode.
+	 * It is only valid when using TMDS encoding and 8 bit per color mode.
+	 */
+	uint32_t color_range;
+
+	/**
+	 * This is set if we're going to treat the device as TV-out.
+	 *
+	 * While we have these nice friendly flags for output types that ought
+	 * to decide this for us, the S-Video output on our HDMI+S-Video card
+	 * shows up as RGB1 (VGA).
+	 */
+	bool is_tv;
+
+	/* This is for current tv format name */
+	int tv_format_index;
+
+	/**
+	 * This is set if we treat the device as HDMI, instead of DVI.
+	 */
+	bool is_hdmi;
+	bool has_hdmi_monitor;
+	bool has_hdmi_audio;
+
+	/**
+	 * This is set if we detect output of sdvo device as LVDS and
+	 * have a valid fixed mode to use with the panel.
+	 */
+	bool is_lvds;
+
+	/**
+	 * This is sdvo fixed pannel mode pointer
+	 */
+	struct drm_display_mode *sdvo_lvds_fixed_mode;
+
+	/* DDC bus used by this SDVO encoder */
+	uint8_t ddc_bus;
+
+	/* Input timings for adjusted_mode */
+	struct psb_intel_sdvo_dtd input_dtd;
+};
+
+struct psb_intel_sdvo_connector {
+	struct psb_intel_connector base;
+
+	/* Mark the type of connector */
+	uint16_t output_flag;
+
+	int force_audio;
+
+	/* This contains all current supported TV format */
+	u8 tv_format_supported[TV_FORMAT_NUM];
+	int   format_supported_num;
+	struct drm_property *tv_format;
+
+	/* add the property for the SDVO-TV */
+	struct drm_property *left;
+	struct drm_property *right;
+	struct drm_property *top;
+	struct drm_property *bottom;
+	struct drm_property *hpos;
+	struct drm_property *vpos;
+	struct drm_property *contrast;
+	struct drm_property *saturation;
+	struct drm_property *hue;
+	struct drm_property *sharpness;
+	struct drm_property *flicker_filter;
+	struct drm_property *flicker_filter_adaptive;
+	struct drm_property *flicker_filter_2d;
+	struct drm_property *tv_chroma_filter;
+	struct drm_property *tv_luma_filter;
+	struct drm_property *dot_crawl;
+
+	/* add the property for the SDVO-TV/LVDS */
+	struct drm_property *brightness;
+
+	/* Add variable to record current setting for the above property */
+	u32	left_margin, right_margin, top_margin, bottom_margin;
+
+	/* this is to get the range of margin.*/
+	u32	max_hscan,  max_vscan;
+	u32	max_hpos, cur_hpos;
+	u32	max_vpos, cur_vpos;
+	u32	cur_brightness, max_brightness;
+	u32	cur_contrast,	max_contrast;
+	u32	cur_saturation, max_saturation;
+	u32	cur_hue,	max_hue;
+	u32	cur_sharpness,	max_sharpness;
+	u32	cur_flicker_filter,		max_flicker_filter;
+	u32	cur_flicker_filter_adaptive,	max_flicker_filter_adaptive;
+	u32	cur_flicker_filter_2d,		max_flicker_filter_2d;
+	u32	cur_tv_chroma_filter,	max_tv_chroma_filter;
+	u32	cur_tv_luma_filter,	max_tv_luma_filter;
+	u32	cur_dot_crawl,	max_dot_crawl;
+};
+
+static struct psb_intel_sdvo *to_psb_intel_sdvo(struct drm_encoder *encoder)
+{
+	return container_of(encoder, struct psb_intel_sdvo, base.base);
+}
+
+static struct psb_intel_sdvo *intel_attached_sdvo(struct drm_connector *connector)
+{
+	return container_of(psb_intel_attached_encoder(connector),
+			    struct psb_intel_sdvo, base);
+}
+
+static struct psb_intel_sdvo_connector *to_psb_intel_sdvo_connector(struct drm_connector *connector)
+{
+	return container_of(to_psb_intel_connector(connector), struct psb_intel_sdvo_connector, base);
+}
+
+static bool
+psb_intel_sdvo_output_setup(struct psb_intel_sdvo *psb_intel_sdvo, uint16_t flags);
+static bool
+psb_intel_sdvo_tv_create_property(struct psb_intel_sdvo *psb_intel_sdvo,
+			      struct psb_intel_sdvo_connector *psb_intel_sdvo_connector,
+			      int type);
+static bool
+psb_intel_sdvo_create_enhance_property(struct psb_intel_sdvo *psb_intel_sdvo,
+				   struct psb_intel_sdvo_connector *psb_intel_sdvo_connector);
+
+/**
+ * Writes the SDVOB or SDVOC with the given value, but always writes both
+ * SDVOB and SDVOC to work around apparent hardware issues (according to
+ * comments in the BIOS).
+ */
+static void psb_intel_sdvo_write_sdvox(struct psb_intel_sdvo *psb_intel_sdvo, u32 val)
+{
+	struct drm_device *dev = psb_intel_sdvo->base.base.dev;
+	u32 bval = val, cval = val;
+	int i;
+
+	if (psb_intel_sdvo->sdvo_reg == SDVOB) {
+		cval = REG_READ(SDVOC);
+	} else {
+		bval = REG_READ(SDVOB);
+	}
+	/*
+	 * Write the registers twice for luck. Sometimes,
+	 * writing them only once doesn't appear to 'stick'.
+	 * The BIOS does this too. Yay, magic
+	 */
+	for (i = 0; i < 2; i++)
+	{
+		REG_WRITE(SDVOB, bval);
+		REG_READ(SDVOB);
+		REG_WRITE(SDVOC, cval);
+		REG_READ(SDVOC);
+	}
+}
+
+static bool psb_intel_sdvo_read_byte(struct psb_intel_sdvo *psb_intel_sdvo, u8 addr, u8 *ch)
+{
+	struct i2c_msg msgs[] = {
+		{
+			.addr = psb_intel_sdvo->slave_addr,
+			.flags = 0,
+			.len = 1,
+			.buf = &addr,
+		},
+		{
+			.addr = psb_intel_sdvo->slave_addr,
+			.flags = I2C_M_RD,
+			.len = 1,
+			.buf = ch,
+		}
+	};
+	int ret;
+
+	if ((ret = i2c_transfer(psb_intel_sdvo->i2c, msgs, 2)) == 2)
+		return true;
+
+	DRM_DEBUG_KMS("i2c transfer returned %d\n", ret);
+	return false;
+}
+
+#define SDVO_CMD_NAME_ENTRY(cmd) {cmd, #cmd}
+/** Mapping of command numbers to names, for debug output */
+static const struct _sdvo_cmd_name {
+	u8 cmd;
+	const char *name;
+} sdvo_cmd_names[] = {
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_RESET),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_DEVICE_CAPS),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FIRMWARE_REV),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TRAINED_INPUTS),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ACTIVE_OUTPUTS),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ACTIVE_OUTPUTS),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_IN_OUT_MAP),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_IN_OUT_MAP),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ATTACHED_DISPLAYS),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HOT_PLUG_SUPPORT),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ACTIVE_HOT_PLUG),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ACTIVE_HOT_PLUG),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INTERRUPT_EVENT_SOURCE),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TARGET_INPUT),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TARGET_OUTPUT),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INPUT_TIMINGS_PART1),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INPUT_TIMINGS_PART2),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_INPUT_TIMINGS_PART1),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_INPUT_TIMINGS_PART2),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_INPUT_TIMINGS_PART1),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OUTPUT_TIMINGS_PART1),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OUTPUT_TIMINGS_PART2),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OUTPUT_TIMINGS_PART1),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OUTPUT_TIMINGS_PART2),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_CREATE_PREFERRED_INPUT_TIMING),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART1),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART2),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_INPUT_PIXEL_CLOCK_RANGE),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OUTPUT_PIXEL_CLOCK_RANGE),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_CLOCK_RATE_MULTS),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_CLOCK_RATE_MULT),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_CLOCK_RATE_MULT),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_TV_FORMATS),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TV_FORMAT),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TV_FORMAT),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_POWER_STATES),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_POWER_STATE),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ENCODER_POWER_STATE),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_DISPLAY_POWER_STATE),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_CONTROL_BUS_SWITCH),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SDTV_RESOLUTION_SUPPORT),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SCALED_HDTV_RESOLUTION_SUPPORT),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPPORTED_ENHANCEMENTS),
+
+    /* Add the op code for SDVO enhancements */
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_HPOS),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HPOS),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HPOS),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_VPOS),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_VPOS),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_VPOS),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_SATURATION),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SATURATION),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_SATURATION),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_HUE),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HUE),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HUE),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_CONTRAST),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_CONTRAST),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_CONTRAST),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_BRIGHTNESS),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_BRIGHTNESS),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_BRIGHTNESS),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_OVERSCAN_H),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OVERSCAN_H),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OVERSCAN_H),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_OVERSCAN_V),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_OVERSCAN_V),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_OVERSCAN_V),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_FLICKER_FILTER),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FLICKER_FILTER),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_FLICKER_FILTER),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_FLICKER_FILTER_ADAPTIVE),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FLICKER_FILTER_ADAPTIVE),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_FLICKER_FILTER_ADAPTIVE),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_FLICKER_FILTER_2D),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_FLICKER_FILTER_2D),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_FLICKER_FILTER_2D),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_SHARPNESS),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SHARPNESS),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_SHARPNESS),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_DOT_CRAWL),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_DOT_CRAWL),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_TV_CHROMA_FILTER),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TV_CHROMA_FILTER),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TV_CHROMA_FILTER),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_MAX_TV_LUMA_FILTER),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_TV_LUMA_FILTER),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_TV_LUMA_FILTER),
+
+    /* HDMI op code */
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_SUPP_ENCODE),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_ENCODE),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_ENCODE),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_PIXEL_REPLI),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_PIXEL_REPLI),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_COLORIMETRY_CAP),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_COLORIMETRY),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_COLORIMETRY),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_AUDIO_ENCRYPT_PREFER),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_AUDIO_STAT),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_AUDIO_STAT),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_INDEX),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_INDEX),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_INFO),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_AV_SPLIT),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_AV_SPLIT),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_TXRATE),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_TXRATE),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_SET_HBUF_DATA),
+    SDVO_CMD_NAME_ENTRY(SDVO_CMD_GET_HBUF_DATA),
+};
+
+#define IS_SDVOB(reg)	(reg == SDVOB)
+#define SDVO_NAME(svdo) (IS_SDVOB((svdo)->sdvo_reg) ? "SDVOB" : "SDVOC")
+
+static void psb_intel_sdvo_debug_write(struct psb_intel_sdvo *psb_intel_sdvo, u8 cmd,
+				   const void *args, int args_len)
+{
+	int i;
+
+	DRM_DEBUG_KMS("%s: W: %02X ",
+				SDVO_NAME(psb_intel_sdvo), cmd);
+	for (i = 0; i < args_len; i++)
+		DRM_LOG_KMS("%02X ", ((u8 *)args)[i]);
+	for (; i < 8; i++)
+		DRM_LOG_KMS("   ");
+	for (i = 0; i < ARRAY_SIZE(sdvo_cmd_names); i++) {
+		if (cmd == sdvo_cmd_names[i].cmd) {
+			DRM_LOG_KMS("(%s)", sdvo_cmd_names[i].name);
+			break;
+		}
+	}
+	if (i == ARRAY_SIZE(sdvo_cmd_names))
+		DRM_LOG_KMS("(%02X)", cmd);
+	DRM_LOG_KMS("\n");
+}
+
+static const char *cmd_status_names[] = {
+	"Power on",
+	"Success",
+	"Not supported",
+	"Invalid arg",
+	"Pending",
+	"Target not specified",
+	"Scaling not supported"
+};
+
+static bool psb_intel_sdvo_write_cmd(struct psb_intel_sdvo *psb_intel_sdvo, u8 cmd,
+				 const void *args, int args_len)
+{
+	u8 buf[args_len*2 + 2], status;
+	struct i2c_msg msgs[args_len + 3];
+	int i, ret;
+
+	psb_intel_sdvo_debug_write(psb_intel_sdvo, cmd, args, args_len);
+
+	for (i = 0; i < args_len; i++) {
+		msgs[i].addr = psb_intel_sdvo->slave_addr;
+		msgs[i].flags = 0;
+		msgs[i].len = 2;
+		msgs[i].buf = buf + 2 *i;
+		buf[2*i + 0] = SDVO_I2C_ARG_0 - i;
+		buf[2*i + 1] = ((u8*)args)[i];
+	}
+	msgs[i].addr = psb_intel_sdvo->slave_addr;
+	msgs[i].flags = 0;
+	msgs[i].len = 2;
+	msgs[i].buf = buf + 2*i;
+	buf[2*i + 0] = SDVO_I2C_OPCODE;
+	buf[2*i + 1] = cmd;
+
+	/* the following two are to read the response */
+	status = SDVO_I2C_CMD_STATUS;
+	msgs[i+1].addr = psb_intel_sdvo->slave_addr;
+	msgs[i+1].flags = 0;
+	msgs[i+1].len = 1;
+	msgs[i+1].buf = &status;
+
+	msgs[i+2].addr = psb_intel_sdvo->slave_addr;
+	msgs[i+2].flags = I2C_M_RD;
+	msgs[i+2].len = 1;
+	msgs[i+2].buf = &status;
+
+	ret = i2c_transfer(psb_intel_sdvo->i2c, msgs, i+3);
+	if (ret < 0) {
+		DRM_DEBUG_KMS("I2c transfer returned %d\n", ret);
+		return false;
+	}
+	if (ret != i+3) {
+		/* failure in I2C transfer */
+		DRM_DEBUG_KMS("I2c transfer returned %d/%d\n", ret, i+3);
+		return false;
+	}
+
+	return true;
+}
+
+static bool psb_intel_sdvo_read_response(struct psb_intel_sdvo *psb_intel_sdvo,
+				     void *response, int response_len)
+{
+	u8 retry = 5;
+	u8 status;
+	int i;
+
+	DRM_DEBUG_KMS("%s: R: ", SDVO_NAME(psb_intel_sdvo));
+
+	/*
+	 * The documentation states that all commands will be
+	 * processed within 15µs, and that we need only poll
+	 * the status byte a maximum of 3 times in order for the
+	 * command to be complete.
+	 *
+	 * Check 5 times in case the hardware failed to read the docs.
+	 */
+	if (!psb_intel_sdvo_read_byte(psb_intel_sdvo,
+				  SDVO_I2C_CMD_STATUS,
+				  &status))
+		goto log_fail;
+
+	while (status == SDVO_CMD_STATUS_PENDING && retry--) {
+		udelay(15);
+		if (!psb_intel_sdvo_read_byte(psb_intel_sdvo,
+					  SDVO_I2C_CMD_STATUS,
+					  &status))
+			goto log_fail;
+	}
+
+	if (status <= SDVO_CMD_STATUS_SCALING_NOT_SUPP)
+		DRM_LOG_KMS("(%s)", cmd_status_names[status]);
+	else
+		DRM_LOG_KMS("(??? %d)", status);
+
+	if (status != SDVO_CMD_STATUS_SUCCESS)
+		goto log_fail;
+
+	/* Read the command response */
+	for (i = 0; i < response_len; i++) {
+		if (!psb_intel_sdvo_read_byte(psb_intel_sdvo,
+					  SDVO_I2C_RETURN_0 + i,
+					  &((u8 *)response)[i]))
+			goto log_fail;
+		DRM_LOG_KMS(" %02X", ((u8 *)response)[i]);
+	}
+	DRM_LOG_KMS("\n");
+	return true;
+
+log_fail:
+	DRM_LOG_KMS("... failed\n");
+	return false;
+}
+
+static int psb_intel_sdvo_get_pixel_multiplier(struct drm_display_mode *mode)
+{
+	if (mode->clock >= 100000)
+		return 1;
+	else if (mode->clock >= 50000)
+		return 2;
+	else
+		return 4;
+}
+
+static bool psb_intel_sdvo_set_control_bus_switch(struct psb_intel_sdvo *psb_intel_sdvo,
+					      u8 ddc_bus)
+{
+	/* This must be the immediately preceding write before the i2c xfer */
+	return psb_intel_sdvo_write_cmd(psb_intel_sdvo,
+				    SDVO_CMD_SET_CONTROL_BUS_SWITCH,
+				    &ddc_bus, 1);
+}
+
+static bool psb_intel_sdvo_set_value(struct psb_intel_sdvo *psb_intel_sdvo, u8 cmd, const void *data, int len)
+{
+	if (!psb_intel_sdvo_write_cmd(psb_intel_sdvo, cmd, data, len))
+		return false;
+
+	return psb_intel_sdvo_read_response(psb_intel_sdvo, NULL, 0);
+}
+
+static bool
+psb_intel_sdvo_get_value(struct psb_intel_sdvo *psb_intel_sdvo, u8 cmd, void *value, int len)
+{
+	if (!psb_intel_sdvo_write_cmd(psb_intel_sdvo, cmd, NULL, 0))
+		return false;
+
+	return psb_intel_sdvo_read_response(psb_intel_sdvo, value, len);
+}
+
+static bool psb_intel_sdvo_set_target_input(struct psb_intel_sdvo *psb_intel_sdvo)
+{
+	struct psb_intel_sdvo_set_target_input_args targets = {0};
+	return psb_intel_sdvo_set_value(psb_intel_sdvo,
+				    SDVO_CMD_SET_TARGET_INPUT,
+				    &targets, sizeof(targets));
+}
+
+/**
+ * Return whether each input is trained.
+ *
+ * This function is making an assumption about the layout of the response,
+ * which should be checked against the docs.
+ */
+static bool psb_intel_sdvo_get_trained_inputs(struct psb_intel_sdvo *psb_intel_sdvo, bool *input_1, bool *input_2)
+{
+	struct psb_intel_sdvo_get_trained_inputs_response response;
+
+	BUILD_BUG_ON(sizeof(response) != 1);
+	if (!psb_intel_sdvo_get_value(psb_intel_sdvo, SDVO_CMD_GET_TRAINED_INPUTS,
+				  &response, sizeof(response)))
+		return false;
+
+	*input_1 = response.input0_trained;
+	*input_2 = response.input1_trained;
+	return true;
+}
+
+static bool psb_intel_sdvo_set_active_outputs(struct psb_intel_sdvo *psb_intel_sdvo,
+					  u16 outputs)
+{
+	return psb_intel_sdvo_set_value(psb_intel_sdvo,
+				    SDVO_CMD_SET_ACTIVE_OUTPUTS,
+				    &outputs, sizeof(outputs));
+}
+
+static bool psb_intel_sdvo_set_encoder_power_state(struct psb_intel_sdvo *psb_intel_sdvo,
+					       int mode)
+{
+	u8 state = SDVO_ENCODER_STATE_ON;
+
+	switch (mode) {
+	case DRM_MODE_DPMS_ON:
+		state = SDVO_ENCODER_STATE_ON;
+		break;
+	case DRM_MODE_DPMS_STANDBY:
+		state = SDVO_ENCODER_STATE_STANDBY;
+		break;
+	case DRM_MODE_DPMS_SUSPEND:
+		state = SDVO_ENCODER_STATE_SUSPEND;
+		break;
+	case DRM_MODE_DPMS_OFF:
+		state = SDVO_ENCODER_STATE_OFF;
+		break;
+	}
+
+	return psb_intel_sdvo_set_value(psb_intel_sdvo,
+				    SDVO_CMD_SET_ENCODER_POWER_STATE, &state, sizeof(state));
+}
+
+static bool psb_intel_sdvo_get_input_pixel_clock_range(struct psb_intel_sdvo *psb_intel_sdvo,
+						   int *clock_min,
+						   int *clock_max)
+{
+	struct psb_intel_sdvo_pixel_clock_range clocks;
+
+	BUILD_BUG_ON(sizeof(clocks) != 4);
+	if (!psb_intel_sdvo_get_value(psb_intel_sdvo,
+				  SDVO_CMD_GET_INPUT_PIXEL_CLOCK_RANGE,
+				  &clocks, sizeof(clocks)))
+		return false;
+
+	/* Convert the values from units of 10 kHz to kHz. */
+	*clock_min = clocks.min * 10;
+	*clock_max = clocks.max * 10;
+	return true;
+}
+
+static bool psb_intel_sdvo_set_target_output(struct psb_intel_sdvo *psb_intel_sdvo,
+					 u16 outputs)
+{
+	return psb_intel_sdvo_set_value(psb_intel_sdvo,
+				    SDVO_CMD_SET_TARGET_OUTPUT,
+				    &outputs, sizeof(outputs));
+}
+
+static bool psb_intel_sdvo_set_timing(struct psb_intel_sdvo *psb_intel_sdvo, u8 cmd,
+				  struct psb_intel_sdvo_dtd *dtd)
+{
+	return psb_intel_sdvo_set_value(psb_intel_sdvo, cmd, &dtd->part1, sizeof(dtd->part1)) &&
+		psb_intel_sdvo_set_value(psb_intel_sdvo, cmd + 1, &dtd->part2, sizeof(dtd->part2));
+}
+
+static bool psb_intel_sdvo_set_input_timing(struct psb_intel_sdvo *psb_intel_sdvo,
+					 struct psb_intel_sdvo_dtd *dtd)
+{
+	return psb_intel_sdvo_set_timing(psb_intel_sdvo,
+				     SDVO_CMD_SET_INPUT_TIMINGS_PART1, dtd);
+}
+
+static bool psb_intel_sdvo_set_output_timing(struct psb_intel_sdvo *psb_intel_sdvo,
+					 struct psb_intel_sdvo_dtd *dtd)
+{
+	return psb_intel_sdvo_set_timing(psb_intel_sdvo,
+				     SDVO_CMD_SET_OUTPUT_TIMINGS_PART1, dtd);
+}
+
+static bool
+psb_intel_sdvo_create_preferred_input_timing(struct psb_intel_sdvo *psb_intel_sdvo,
+					 uint16_t clock,
+					 uint16_t width,
+					 uint16_t height)
+{
+	struct psb_intel_sdvo_preferred_input_timing_args args;
+
+	memset(&args, 0, sizeof(args));
+	args.clock = clock;
+	args.width = width;
+	args.height = height;
+	args.interlace = 0;
+
+	if (psb_intel_sdvo->is_lvds &&
+	   (psb_intel_sdvo->sdvo_lvds_fixed_mode->hdisplay != width ||
+	    psb_intel_sdvo->sdvo_lvds_fixed_mode->vdisplay != height))
+		args.scaled = 1;
+
+	return psb_intel_sdvo_set_value(psb_intel_sdvo,
+				    SDVO_CMD_CREATE_PREFERRED_INPUT_TIMING,
+				    &args, sizeof(args));
+}
+
+static bool psb_intel_sdvo_get_preferred_input_timing(struct psb_intel_sdvo *psb_intel_sdvo,
+						  struct psb_intel_sdvo_dtd *dtd)
+{
+	BUILD_BUG_ON(sizeof(dtd->part1) != 8);
+	BUILD_BUG_ON(sizeof(dtd->part2) != 8);
+	return psb_intel_sdvo_get_value(psb_intel_sdvo, SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART1,
+				    &dtd->part1, sizeof(dtd->part1)) &&
+		psb_intel_sdvo_get_value(psb_intel_sdvo, SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART2,
+				     &dtd->part2, sizeof(dtd->part2));
+}
+
+static bool psb_intel_sdvo_set_clock_rate_mult(struct psb_intel_sdvo *psb_intel_sdvo, u8 val)
+{
+	return psb_intel_sdvo_set_value(psb_intel_sdvo, SDVO_CMD_SET_CLOCK_RATE_MULT, &val, 1);
+}
+
+static void psb_intel_sdvo_get_dtd_from_mode(struct psb_intel_sdvo_dtd *dtd,
+					 const struct drm_display_mode *mode)
+{
+	uint16_t width, height;
+	uint16_t h_blank_len, h_sync_len, v_blank_len, v_sync_len;
+	uint16_t h_sync_offset, v_sync_offset;
+
+	width = mode->crtc_hdisplay;
+	height = mode->crtc_vdisplay;
+
+	/* do some mode translations */
+	h_blank_len = mode->crtc_hblank_end - mode->crtc_hblank_start;
+	h_sync_len = mode->crtc_hsync_end - mode->crtc_hsync_start;
+
+	v_blank_len = mode->crtc_vblank_end - mode->crtc_vblank_start;
+	v_sync_len = mode->crtc_vsync_end - mode->crtc_vsync_start;
+
+	h_sync_offset = mode->crtc_hsync_start - mode->crtc_hblank_start;
+	v_sync_offset = mode->crtc_vsync_start - mode->crtc_vblank_start;
+
+	dtd->part1.clock = mode->clock / 10;
+	dtd->part1.h_active = width & 0xff;
+	dtd->part1.h_blank = h_blank_len & 0xff;
+	dtd->part1.h_high = (((width >> 8) & 0xf) << 4) |
+		((h_blank_len >> 8) & 0xf);
+	dtd->part1.v_active = height & 0xff;
+	dtd->part1.v_blank = v_blank_len & 0xff;
+	dtd->part1.v_high = (((height >> 8) & 0xf) << 4) |
+		((v_blank_len >> 8) & 0xf);
+
+	dtd->part2.h_sync_off = h_sync_offset & 0xff;
+	dtd->part2.h_sync_width = h_sync_len & 0xff;
+	dtd->part2.v_sync_off_width = (v_sync_offset & 0xf) << 4 |
+		(v_sync_len & 0xf);
+	dtd->part2.sync_off_width_high = ((h_sync_offset & 0x300) >> 2) |
+		((h_sync_len & 0x300) >> 4) | ((v_sync_offset & 0x30) >> 2) |
+		((v_sync_len & 0x30) >> 4);
+
+	dtd->part2.dtd_flags = 0x18;
+	if (mode->flags & DRM_MODE_FLAG_PHSYNC)
+		dtd->part2.dtd_flags |= 0x2;
+	if (mode->flags & DRM_MODE_FLAG_PVSYNC)
+		dtd->part2.dtd_flags |= 0x4;
+
+	dtd->part2.sdvo_flags = 0;
+	dtd->part2.v_sync_off_high = v_sync_offset & 0xc0;
+	dtd->part2.reserved = 0;
+}
+
+static void psb_intel_sdvo_get_mode_from_dtd(struct drm_display_mode * mode,
+					 const struct psb_intel_sdvo_dtd *dtd)
+{
+	mode->hdisplay = dtd->part1.h_active;
+	mode->hdisplay += ((dtd->part1.h_high >> 4) & 0x0f) << 8;
+	mode->hsync_start = mode->hdisplay + dtd->part2.h_sync_off;
+	mode->hsync_start += (dtd->part2.sync_off_width_high & 0xc0) << 2;
+	mode->hsync_end = mode->hsync_start + dtd->part2.h_sync_width;
+	mode->hsync_end += (dtd->part2.sync_off_width_high & 0x30) << 4;
+	mode->htotal = mode->hdisplay + dtd->part1.h_blank;
+	mode->htotal += (dtd->part1.h_high & 0xf) << 8;
+
+	mode->vdisplay = dtd->part1.v_active;
+	mode->vdisplay += ((dtd->part1.v_high >> 4) & 0x0f) << 8;
+	mode->vsync_start = mode->vdisplay;
+	mode->vsync_start += (dtd->part2.v_sync_off_width >> 4) & 0xf;
+	mode->vsync_start += (dtd->part2.sync_off_width_high & 0x0c) << 2;
+	mode->vsync_start += dtd->part2.v_sync_off_high & 0xc0;
+	mode->vsync_end = mode->vsync_start +
+		(dtd->part2.v_sync_off_width & 0xf);
+	mode->vsync_end += (dtd->part2.sync_off_width_high & 0x3) << 4;
+	mode->vtotal = mode->vdisplay + dtd->part1.v_blank;
+	mode->vtotal += (dtd->part1.v_high & 0xf) << 8;
+
+	mode->clock = dtd->part1.clock * 10;
+
+	mode->flags &= ~(DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC);
+	if (dtd->part2.dtd_flags & 0x2)
+		mode->flags |= DRM_MODE_FLAG_PHSYNC;
+	if (dtd->part2.dtd_flags & 0x4)
+		mode->flags |= DRM_MODE_FLAG_PVSYNC;
+}
+
+static bool psb_intel_sdvo_check_supp_encode(struct psb_intel_sdvo *psb_intel_sdvo)
+{
+	struct psb_intel_sdvo_encode encode;
+
+	BUILD_BUG_ON(sizeof(encode) != 2);
+	return psb_intel_sdvo_get_value(psb_intel_sdvo,
+				  SDVO_CMD_GET_SUPP_ENCODE,
+				  &encode, sizeof(encode));
+}
+
+static bool psb_intel_sdvo_set_encode(struct psb_intel_sdvo *psb_intel_sdvo,
+				  uint8_t mode)
+{
+	return psb_intel_sdvo_set_value(psb_intel_sdvo, SDVO_CMD_SET_ENCODE, &mode, 1);
+}
+
+static bool psb_intel_sdvo_set_colorimetry(struct psb_intel_sdvo *psb_intel_sdvo,
+				       uint8_t mode)
+{
+	return psb_intel_sdvo_set_value(psb_intel_sdvo, SDVO_CMD_SET_COLORIMETRY, &mode, 1);
+}
+
+#if 0
+static void psb_intel_sdvo_dump_hdmi_buf(struct psb_intel_sdvo *psb_intel_sdvo)
+{
+	int i, j;
+	uint8_t set_buf_index[2];
+	uint8_t av_split;
+	uint8_t buf_size;
+	uint8_t buf[48];
+	uint8_t *pos;
+
+	psb_intel_sdvo_get_value(encoder, SDVO_CMD_GET_HBUF_AV_SPLIT, &av_split, 1);
+
+	for (i = 0; i <= av_split; i++) {
+		set_buf_index[0] = i; set_buf_index[1] = 0;
+		psb_intel_sdvo_write_cmd(encoder, SDVO_CMD_SET_HBUF_INDEX,
+				     set_buf_index, 2);
+		psb_intel_sdvo_write_cmd(encoder, SDVO_CMD_GET_HBUF_INFO, NULL, 0);
+		psb_intel_sdvo_read_response(encoder, &buf_size, 1);
+
+		pos = buf;
+		for (j = 0; j <= buf_size; j += 8) {
+			psb_intel_sdvo_write_cmd(encoder, SDVO_CMD_GET_HBUF_DATA,
+					     NULL, 0);
+			psb_intel_sdvo_read_response(encoder, pos, 8);
+			pos += 8;
+		}
+	}
+}
+#endif
+
+static bool psb_intel_sdvo_set_avi_infoframe(struct psb_intel_sdvo *psb_intel_sdvo)
+{
+	DRM_INFO("HDMI is not supported yet");
+
+	return false;
+#if 0
+	struct dip_infoframe avi_if = {
+		.type = DIP_TYPE_AVI,
+		.ver = DIP_VERSION_AVI,
+		.len = DIP_LEN_AVI,
+	};
+	uint8_t tx_rate = SDVO_HBUF_TX_VSYNC;
+	uint8_t set_buf_index[2] = { 1, 0 };
+	uint64_t *data = (uint64_t *)&avi_if;
+	unsigned i;
+
+	intel_dip_infoframe_csum(&avi_if);
+
+	if (!psb_intel_sdvo_set_value(psb_intel_sdvo,
+				  SDVO_CMD_SET_HBUF_INDEX,
+				  set_buf_index, 2))
+		return false;
+
+	for (i = 0; i < sizeof(avi_if); i += 8) {
+		if (!psb_intel_sdvo_set_value(psb_intel_sdvo,
+					  SDVO_CMD_SET_HBUF_DATA,
+					  data, 8))
+			return false;
+		data++;
+	}
+
+	return psb_intel_sdvo_set_value(psb_intel_sdvo,
+				    SDVO_CMD_SET_HBUF_TXRATE,
+				    &tx_rate, 1);
+#endif
+}
+
+static bool psb_intel_sdvo_set_tv_format(struct psb_intel_sdvo *psb_intel_sdvo)
+{
+	struct psb_intel_sdvo_tv_format format;
+	uint32_t format_map;
+
+	format_map = 1 << psb_intel_sdvo->tv_format_index;
+	memset(&format, 0, sizeof(format));
+	memcpy(&format, &format_map, min(sizeof(format), sizeof(format_map)));
+
+	BUILD_BUG_ON(sizeof(format) != 6);
+	return psb_intel_sdvo_set_value(psb_intel_sdvo,
+				    SDVO_CMD_SET_TV_FORMAT,
+				    &format, sizeof(format));
+}
+
+static bool
+psb_intel_sdvo_set_output_timings_from_mode(struct psb_intel_sdvo *psb_intel_sdvo,
+					struct drm_display_mode *mode)
+{
+	struct psb_intel_sdvo_dtd output_dtd;
+
+	if (!psb_intel_sdvo_set_target_output(psb_intel_sdvo,
+					  psb_intel_sdvo->attached_output))
+		return false;
+
+	psb_intel_sdvo_get_dtd_from_mode(&output_dtd, mode);
+	if (!psb_intel_sdvo_set_output_timing(psb_intel_sdvo, &output_dtd))
+		return false;
+
+	return true;
+}
+
+static bool
+psb_intel_sdvo_set_input_timings_for_mode(struct psb_intel_sdvo *psb_intel_sdvo,
+					struct drm_display_mode *mode,
+					struct drm_display_mode *adjusted_mode)
+{
+	/* Reset the input timing to the screen. Assume always input 0. */
+	if (!psb_intel_sdvo_set_target_input(psb_intel_sdvo))
+		return false;
+
+	if (!psb_intel_sdvo_create_preferred_input_timing(psb_intel_sdvo,
+						      mode->clock / 10,
+						      mode->hdisplay,
+						      mode->vdisplay))
+		return false;
+
+	if (!psb_intel_sdvo_get_preferred_input_timing(psb_intel_sdvo,
+						   &psb_intel_sdvo->input_dtd))
+		return false;
+
+	psb_intel_sdvo_get_mode_from_dtd(adjusted_mode, &psb_intel_sdvo->input_dtd);
+
+	drm_mode_set_crtcinfo(adjusted_mode, 0);
+	return true;
+}
+
+static bool psb_intel_sdvo_mode_fixup(struct drm_encoder *encoder,
+				  struct drm_display_mode *mode,
+				  struct drm_display_mode *adjusted_mode)
+{
+	struct psb_intel_sdvo *psb_intel_sdvo = to_psb_intel_sdvo(encoder);
+	int multiplier;
+
+	/* We need to construct preferred input timings based on our
+	 * output timings.  To do that, we have to set the output
+	 * timings, even though this isn't really the right place in
+	 * the sequence to do it. Oh well.
+	 */
+	if (psb_intel_sdvo->is_tv) {
+		if (!psb_intel_sdvo_set_output_timings_from_mode(psb_intel_sdvo, mode))
+			return false;
+
+		(void) psb_intel_sdvo_set_input_timings_for_mode(psb_intel_sdvo,
+							     mode,
+							     adjusted_mode);
+	} else if (psb_intel_sdvo->is_lvds) {
+		if (!psb_intel_sdvo_set_output_timings_from_mode(psb_intel_sdvo,
+							     psb_intel_sdvo->sdvo_lvds_fixed_mode))
+			return false;
+
+		(void) psb_intel_sdvo_set_input_timings_for_mode(psb_intel_sdvo,
+							     mode,
+							     adjusted_mode);
+	}
+
+	/* Make the CRTC code factor in the SDVO pixel multiplier.  The
+	 * SDVO device will factor out the multiplier during mode_set.
+	 */
+	multiplier = psb_intel_sdvo_get_pixel_multiplier(adjusted_mode);
+	psb_intel_mode_set_pixel_multiplier(adjusted_mode, multiplier);
+
+	return true;
+}
+
+static void psb_intel_sdvo_mode_set(struct drm_encoder *encoder,
+				struct drm_display_mode *mode,
+				struct drm_display_mode *adjusted_mode)
+{
+	struct drm_device *dev = encoder->dev;
+	struct drm_crtc *crtc = encoder->crtc;
+	struct psb_intel_crtc *psb_intel_crtc = to_psb_intel_crtc(crtc);
+	struct psb_intel_sdvo *psb_intel_sdvo = to_psb_intel_sdvo(encoder);
+	u32 sdvox;
+	struct psb_intel_sdvo_in_out_map in_out;
+	struct psb_intel_sdvo_dtd input_dtd;
+	int pixel_multiplier = psb_intel_mode_get_pixel_multiplier(adjusted_mode);
+	int rate;
+
+	if (!mode)
+		return;
+
+	/* First, set the input mapping for the first input to our controlled
+	 * output. This is only correct if we're a single-input device, in
+	 * which case the first input is the output from the appropriate SDVO
+	 * channel on the motherboard.  In a two-input device, the first input
+	 * will be SDVOB and the second SDVOC.
+	 */
+	in_out.in0 = psb_intel_sdvo->attached_output;
+	in_out.in1 = 0;
+
+	psb_intel_sdvo_set_value(psb_intel_sdvo,
+			     SDVO_CMD_SET_IN_OUT_MAP,
+			     &in_out, sizeof(in_out));
+
+	/* Set the output timings to the screen */
+	if (!psb_intel_sdvo_set_target_output(psb_intel_sdvo,
+					  psb_intel_sdvo->attached_output))
+		return;
+
+	/* We have tried to get input timing in mode_fixup, and filled into
+	 * adjusted_mode.
+	 */
+	if (psb_intel_sdvo->is_tv || psb_intel_sdvo->is_lvds) {
+		input_dtd = psb_intel_sdvo->input_dtd;
+	} else {
+		/* Set the output timing to the screen */
+		if (!psb_intel_sdvo_set_target_output(psb_intel_sdvo,
+						  psb_intel_sdvo->attached_output))
+			return;
+
+		psb_intel_sdvo_get_dtd_from_mode(&input_dtd, adjusted_mode);
+		(void) psb_intel_sdvo_set_output_timing(psb_intel_sdvo, &input_dtd);
+	}
+
+	/* Set the input timing to the screen. Assume always input 0. */
+	if (!psb_intel_sdvo_set_target_input(psb_intel_sdvo))
+		return;
+
+	if (psb_intel_sdvo->has_hdmi_monitor) {
+		psb_intel_sdvo_set_encode(psb_intel_sdvo, SDVO_ENCODE_HDMI);
+		psb_intel_sdvo_set_colorimetry(psb_intel_sdvo,
+					   SDVO_COLORIMETRY_RGB256);
+		psb_intel_sdvo_set_avi_infoframe(psb_intel_sdvo);
+	} else
+		psb_intel_sdvo_set_encode(psb_intel_sdvo, SDVO_ENCODE_DVI);
+
+	if (psb_intel_sdvo->is_tv &&
+	    !psb_intel_sdvo_set_tv_format(psb_intel_sdvo))
+		return;
+
+	(void) psb_intel_sdvo_set_input_timing(psb_intel_sdvo, &input_dtd);
+
+	switch (pixel_multiplier) {
+	default:
+	case 1: rate = SDVO_CLOCK_RATE_MULT_1X; break;
+	case 2: rate = SDVO_CLOCK_RATE_MULT_2X; break;
+	case 4: rate = SDVO_CLOCK_RATE_MULT_4X; break;
+	}
+	if (!psb_intel_sdvo_set_clock_rate_mult(psb_intel_sdvo, rate))
+		return;
+
+	/* Set the SDVO control regs. */
+	sdvox = REG_READ(psb_intel_sdvo->sdvo_reg);
+	switch (psb_intel_sdvo->sdvo_reg) {
+	case SDVOB:
+		sdvox &= SDVOB_PRESERVE_MASK;
+		break;
+	case SDVOC:
+		sdvox &= SDVOC_PRESERVE_MASK;
+		break;
+	}
+	sdvox |= (9 << 19) | SDVO_BORDER_ENABLE;
+
+	if (psb_intel_crtc->pipe == 1)
+		sdvox |= SDVO_PIPE_B_SELECT;
+	if (psb_intel_sdvo->has_hdmi_audio)
+		sdvox |= SDVO_AUDIO_ENABLE;
+
+	/* FIXME: Check if this is needed for PSB
+	sdvox |= (pixel_multiplier - 1) << SDVO_PORT_MULTIPLY_SHIFT;
+	*/
+
+	if (input_dtd.part2.sdvo_flags & SDVO_NEED_TO_STALL)
+		sdvox |= SDVO_STALL_SELECT;
+	psb_intel_sdvo_write_sdvox(psb_intel_sdvo, sdvox);
+}
+
+static void psb_intel_sdvo_dpms(struct drm_encoder *encoder, int mode)
+{
+	struct drm_device *dev = encoder->dev;
+	struct psb_intel_sdvo *psb_intel_sdvo = to_psb_intel_sdvo(encoder);
+	u32 temp;
+
+	switch (mode) {
+	case DRM_MODE_DPMS_ON:
+		DRM_DEBUG("DPMS_ON");
+		break;
+	case DRM_MODE_DPMS_OFF:
+		DRM_DEBUG("DPMS_OFF");
+		break;
+	default:
+		DRM_DEBUG("DPMS: %d", mode);
+	}
+
+	if (mode != DRM_MODE_DPMS_ON) {
+		psb_intel_sdvo_set_active_outputs(psb_intel_sdvo, 0);
+		if (0)
+			psb_intel_sdvo_set_encoder_power_state(psb_intel_sdvo, mode);
+
+		if (mode == DRM_MODE_DPMS_OFF) {
+			temp = REG_READ(psb_intel_sdvo->sdvo_reg);
+			if ((temp & SDVO_ENABLE) != 0) {
+				psb_intel_sdvo_write_sdvox(psb_intel_sdvo, temp & ~SDVO_ENABLE);
+			}
+		}
+	} else {
+		bool input1, input2;
+		int i;
+		u8 status;
+
+		temp = REG_READ(psb_intel_sdvo->sdvo_reg);
+		if ((temp & SDVO_ENABLE) == 0)
+			psb_intel_sdvo_write_sdvox(psb_intel_sdvo, temp | SDVO_ENABLE);
+		for (i = 0; i < 2; i++)
+			psb_intel_wait_for_vblank(dev);
+
+		status = psb_intel_sdvo_get_trained_inputs(psb_intel_sdvo, &input1, &input2);
+		/* Warn if the device reported failure to sync.
+		 * A lot of SDVO devices fail to notify of sync, but it's
+		 * a given it the status is a success, we succeeded.
+		 */
+		if (status == SDVO_CMD_STATUS_SUCCESS && !input1) {
+			DRM_DEBUG_KMS("First %s output reported failure to "
+					"sync\n", SDVO_NAME(psb_intel_sdvo));
+		}
+
+		if (0)
+			psb_intel_sdvo_set_encoder_power_state(psb_intel_sdvo, mode);
+		psb_intel_sdvo_set_active_outputs(psb_intel_sdvo, psb_intel_sdvo->attached_output);
+	}
+	return;
+}
+
+static int psb_intel_sdvo_mode_valid(struct drm_connector *connector,
+				 struct drm_display_mode *mode)
+{
+	struct psb_intel_sdvo *psb_intel_sdvo = intel_attached_sdvo(connector);
+
+	if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
+		return MODE_NO_DBLESCAN;
+
+	if (psb_intel_sdvo->pixel_clock_min > mode->clock)
+		return MODE_CLOCK_LOW;
+
+	if (psb_intel_sdvo->pixel_clock_max < mode->clock)
+		return MODE_CLOCK_HIGH;
+
+	if (psb_intel_sdvo->is_lvds) {
+		if (mode->hdisplay > psb_intel_sdvo->sdvo_lvds_fixed_mode->hdisplay)
+			return MODE_PANEL;
+
+		if (mode->vdisplay > psb_intel_sdvo->sdvo_lvds_fixed_mode->vdisplay)
+			return MODE_PANEL;
+	}
+
+	return MODE_OK;
+}
+
+static bool psb_intel_sdvo_get_capabilities(struct psb_intel_sdvo *psb_intel_sdvo, struct psb_intel_sdvo_caps *caps)
+{
+	BUILD_BUG_ON(sizeof(*caps) != 8);
+	if (!psb_intel_sdvo_get_value(psb_intel_sdvo,
+				  SDVO_CMD_GET_DEVICE_CAPS,
+				  caps, sizeof(*caps)))
+		return false;
+
+	DRM_DEBUG_KMS("SDVO capabilities:\n"
+		      "  vendor_id: %d\n"
+		      "  device_id: %d\n"
+		      "  device_rev_id: %d\n"
+		      "  sdvo_version_major: %d\n"
+		      "  sdvo_version_minor: %d\n"
+		      "  sdvo_inputs_mask: %d\n"
+		      "  smooth_scaling: %d\n"
+		      "  sharp_scaling: %d\n"
+		      "  up_scaling: %d\n"
+		      "  down_scaling: %d\n"
+		      "  stall_support: %d\n"
+		      "  output_flags: %d\n",
+		      caps->vendor_id,
+		      caps->device_id,
+		      caps->device_rev_id,
+		      caps->sdvo_version_major,
+		      caps->sdvo_version_minor,
+		      caps->sdvo_inputs_mask,
+		      caps->smooth_scaling,
+		      caps->sharp_scaling,
+		      caps->up_scaling,
+		      caps->down_scaling,
+		      caps->stall_support,
+		      caps->output_flags);
+
+	return true;
+}
+
+/* No use! */
+#if 0
+struct drm_connector* psb_intel_sdvo_find(struct drm_device *dev, int sdvoB)
+{
+	struct drm_connector *connector = NULL;
+	struct psb_intel_sdvo *iout = NULL;
+	struct psb_intel_sdvo *sdvo;
+
+	/* find the sdvo connector */
+	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+		iout = to_psb_intel_sdvo(connector);
+
+		if (iout->type != INTEL_OUTPUT_SDVO)
+			continue;
+
+		sdvo = iout->dev_priv;
+
+		if (sdvo->sdvo_reg == SDVOB && sdvoB)
+			return connector;
+
+		if (sdvo->sdvo_reg == SDVOC && !sdvoB)
+			return connector;
+
+	}
+
+	return NULL;
+}
+
+int psb_intel_sdvo_supports_hotplug(struct drm_connector *connector)
+{
+	u8 response[2];
+	u8 status;
+	struct psb_intel_sdvo *psb_intel_sdvo;
+	DRM_DEBUG_KMS("\n");
+
+	if (!connector)
+		return 0;
+
+	psb_intel_sdvo = to_psb_intel_sdvo(connector);
+
+	return psb_intel_sdvo_get_value(psb_intel_sdvo, SDVO_CMD_GET_HOT_PLUG_SUPPORT,
+				    &response, 2) && response[0];
+}
+
+void psb_intel_sdvo_set_hotplug(struct drm_connector *connector, int on)
+{
+	u8 response[2];
+	u8 status;
+	struct psb_intel_sdvo *psb_intel_sdvo = to_psb_intel_sdvo(connector);
+
+	psb_intel_sdvo_write_cmd(psb_intel_sdvo, SDVO_CMD_GET_ACTIVE_HOT_PLUG, NULL, 0);
+	psb_intel_sdvo_read_response(psb_intel_sdvo, &response, 2);
+
+	if (on) {
+		psb_intel_sdvo_write_cmd(psb_intel_sdvo, SDVO_CMD_GET_HOT_PLUG_SUPPORT, NULL, 0);
+		status = psb_intel_sdvo_read_response(psb_intel_sdvo, &response, 2);
+
+		psb_intel_sdvo_write_cmd(psb_intel_sdvo, SDVO_CMD_SET_ACTIVE_HOT_PLUG, &response, 2);
+	} else {
+		response[0] = 0;
+		response[1] = 0;
+		psb_intel_sdvo_write_cmd(psb_intel_sdvo, SDVO_CMD_SET_ACTIVE_HOT_PLUG, &response, 2);
+	}
+
+	psb_intel_sdvo_write_cmd(psb_intel_sdvo, SDVO_CMD_GET_ACTIVE_HOT_PLUG, NULL, 0);
+	psb_intel_sdvo_read_response(psb_intel_sdvo, &response, 2);
+}
+#endif
+
+static bool
+psb_intel_sdvo_multifunc_encoder(struct psb_intel_sdvo *psb_intel_sdvo)
+{
+	/* Is there more than one type of output? */
+	int caps = psb_intel_sdvo->caps.output_flags & 0xf;
+	return caps & -caps;
+}
+
+static struct edid *
+psb_intel_sdvo_get_edid(struct drm_connector *connector)
+{
+	struct psb_intel_sdvo *sdvo = intel_attached_sdvo(connector);
+	return drm_get_edid(connector, &sdvo->ddc);
+}
+
+/* Mac mini hack -- use the same DDC as the analog connector */
+static struct edid *
+psb_intel_sdvo_get_analog_edid(struct drm_connector *connector)
+{
+	struct drm_psb_private *dev_priv = connector->dev->dev_private;
+
+	return drm_get_edid(connector,
+			    &dev_priv->gmbus[dev_priv->crt_ddc_pin].adapter);
+	return NULL;
+}
+
+enum drm_connector_status
+psb_intel_sdvo_hdmi_sink_detect(struct drm_connector *connector)
+{
+	struct psb_intel_sdvo *psb_intel_sdvo = intel_attached_sdvo(connector);
+	enum drm_connector_status status;
+	struct edid *edid;
+
+	edid = psb_intel_sdvo_get_edid(connector);
+
+	if (edid == NULL && psb_intel_sdvo_multifunc_encoder(psb_intel_sdvo)) {
+		u8 ddc, saved_ddc = psb_intel_sdvo->ddc_bus;
+
+		/*
+		 * Don't use the 1 as the argument of DDC bus switch to get
+		 * the EDID. It is used for SDVO SPD ROM.
+		 */
+		for (ddc = psb_intel_sdvo->ddc_bus >> 1; ddc > 1; ddc >>= 1) {
+			psb_intel_sdvo->ddc_bus = ddc;
+			edid = psb_intel_sdvo_get_edid(connector);
+			if (edid)
+				break;
+		}
+		/*
+		 * If we found the EDID on the other bus,
+		 * assume that is the correct DDC bus.
+		 */
+		if (edid == NULL)
+			psb_intel_sdvo->ddc_bus = saved_ddc;
+	}
+
+	/*
+	 * When there is no edid and no monitor is connected with VGA
+	 * port, try to use the CRT ddc to read the EDID for DVI-connector.
+	 */
+	if (edid == NULL)
+		edid = psb_intel_sdvo_get_analog_edid(connector);
+
+	status = connector_status_unknown;
+	if (edid != NULL) {
+		/* DDC bus is shared, match EDID to connector type */
+		if (edid->input & DRM_EDID_INPUT_DIGITAL) {
+			status = connector_status_connected;
+			if (psb_intel_sdvo->is_hdmi) {
+				psb_intel_sdvo->has_hdmi_monitor = drm_detect_hdmi_monitor(edid);
+				psb_intel_sdvo->has_hdmi_audio = drm_detect_monitor_audio(edid);
+			}
+		} else
+			status = connector_status_disconnected;
+		connector->display_info.raw_edid = NULL;
+		kfree(edid);
+	}
+
+	if (status == connector_status_connected) {
+		struct psb_intel_sdvo_connector *psb_intel_sdvo_connector = to_psb_intel_sdvo_connector(connector);
+		if (psb_intel_sdvo_connector->force_audio)
+			psb_intel_sdvo->has_hdmi_audio = psb_intel_sdvo_connector->force_audio > 0;
+	}
+
+	return status;
+}
+
+static enum drm_connector_status
+psb_intel_sdvo_detect(struct drm_connector *connector, bool force)
+{
+	uint16_t response;
+	struct psb_intel_sdvo *psb_intel_sdvo = intel_attached_sdvo(connector);
+	struct psb_intel_sdvo_connector *psb_intel_sdvo_connector = to_psb_intel_sdvo_connector(connector);
+	enum drm_connector_status ret;
+
+	if (!psb_intel_sdvo_write_cmd(psb_intel_sdvo,
+				  SDVO_CMD_GET_ATTACHED_DISPLAYS, NULL, 0))
+		return connector_status_unknown;
+
+	/* add 30ms delay when the output type might be TV */
+	if (psb_intel_sdvo->caps.output_flags &
+	    (SDVO_OUTPUT_SVID0 | SDVO_OUTPUT_CVBS0))
+		mdelay(30);
+
+	if (!psb_intel_sdvo_read_response(psb_intel_sdvo, &response, 2))
+		return connector_status_unknown;
+
+	DRM_DEBUG_KMS("SDVO response %d %d [%x]\n",
+		      response & 0xff, response >> 8,
+		      psb_intel_sdvo_connector->output_flag);
+
+	if (response == 0)
+		return connector_status_disconnected;
+
+	psb_intel_sdvo->attached_output = response;
+
+	psb_intel_sdvo->has_hdmi_monitor = false;
+	psb_intel_sdvo->has_hdmi_audio = false;
+
+	if ((psb_intel_sdvo_connector->output_flag & response) == 0)
+		ret = connector_status_disconnected;
+	else if (IS_TMDS(psb_intel_sdvo_connector))
+		ret = psb_intel_sdvo_hdmi_sink_detect(connector);
+	else {
+		struct edid *edid;
+
+		/* if we have an edid check it matches the connection */
+		edid = psb_intel_sdvo_get_edid(connector);
+		if (edid == NULL)
+			edid = psb_intel_sdvo_get_analog_edid(connector);
+		if (edid != NULL) {
+			if (edid->input & DRM_EDID_INPUT_DIGITAL)
+				ret = connector_status_disconnected;
+			else
+				ret = connector_status_connected;
+			connector->display_info.raw_edid = NULL;
+			kfree(edid);
+		} else
+			ret = connector_status_connected;
+	}
+
+	/* May update encoder flag for like clock for SDVO TV, etc.*/
+	if (ret == connector_status_connected) {
+		psb_intel_sdvo->is_tv = false;
+		psb_intel_sdvo->is_lvds = false;
+		psb_intel_sdvo->base.needs_tv_clock = false;
+
+		if (response & SDVO_TV_MASK) {
+			psb_intel_sdvo->is_tv = true;
+			psb_intel_sdvo->base.needs_tv_clock = true;
+		}
+		if (response & SDVO_LVDS_MASK)
+			psb_intel_sdvo->is_lvds = psb_intel_sdvo->sdvo_lvds_fixed_mode != NULL;
+	}
+
+	return ret;
+}
+
+static void psb_intel_sdvo_get_ddc_modes(struct drm_connector *connector)
+{
+	struct edid *edid;
+
+	/* set the bus switch and get the modes */
+	edid = psb_intel_sdvo_get_edid(connector);
+
+	/*
+	 * Mac mini hack.  On this device, the DVI-I connector shares one DDC
+	 * link between analog and digital outputs. So, if the regular SDVO
+	 * DDC fails, check to see if the analog output is disconnected, in
+	 * which case we'll look there for the digital DDC data.
+	 */
+	if (edid == NULL)
+		edid = psb_intel_sdvo_get_analog_edid(connector);
+
+	if (edid != NULL) {
+		struct psb_intel_sdvo_connector *psb_intel_sdvo_connector = to_psb_intel_sdvo_connector(connector);
+		bool monitor_is_digital = !!(edid->input & DRM_EDID_INPUT_DIGITAL);
+		bool connector_is_digital = !!IS_TMDS(psb_intel_sdvo_connector);
+
+		if (connector_is_digital == monitor_is_digital) {
+			drm_mode_connector_update_edid_property(connector, edid);
+			drm_add_edid_modes(connector, edid);
+		}
+
+		connector->display_info.raw_edid = NULL;
+		kfree(edid);
+	}
+}
+
+/*
+ * Set of SDVO TV modes.
+ * Note!  This is in reply order (see loop in get_tv_modes).
+ * XXX: all 60Hz refresh?
+ */
+static const struct drm_display_mode sdvo_tv_modes[] = {
+	{ DRM_MODE("320x200", DRM_MODE_TYPE_DRIVER, 5815, 320, 321, 384,
+		   416, 0, 200, 201, 232, 233, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+	{ DRM_MODE("320x240", DRM_MODE_TYPE_DRIVER, 6814, 320, 321, 384,
+		   416, 0, 240, 241, 272, 273, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+	{ DRM_MODE("400x300", DRM_MODE_TYPE_DRIVER, 9910, 400, 401, 464,
+		   496, 0, 300, 301, 332, 333, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+	{ DRM_MODE("640x350", DRM_MODE_TYPE_DRIVER, 16913, 640, 641, 704,
+		   736, 0, 350, 351, 382, 383, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+	{ DRM_MODE("640x400", DRM_MODE_TYPE_DRIVER, 19121, 640, 641, 704,
+		   736, 0, 400, 401, 432, 433, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+	{ DRM_MODE("640x480", DRM_MODE_TYPE_DRIVER, 22654, 640, 641, 704,
+		   736, 0, 480, 481, 512, 513, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+	{ DRM_MODE("704x480", DRM_MODE_TYPE_DRIVER, 24624, 704, 705, 768,
+		   800, 0, 480, 481, 512, 513, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+	{ DRM_MODE("704x576", DRM_MODE_TYPE_DRIVER, 29232, 704, 705, 768,
+		   800, 0, 576, 577, 608, 609, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+	{ DRM_MODE("720x350", DRM_MODE_TYPE_DRIVER, 18751, 720, 721, 784,
+		   816, 0, 350, 351, 382, 383, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+	{ DRM_MODE("720x400", DRM_MODE_TYPE_DRIVER, 21199, 720, 721, 784,
+		   816, 0, 400, 401, 432, 433, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+	{ DRM_MODE("720x480", DRM_MODE_TYPE_DRIVER, 25116, 720, 721, 784,
+		   816, 0, 480, 481, 512, 513, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+	{ DRM_MODE("720x540", DRM_MODE_TYPE_DRIVER, 28054, 720, 721, 784,
+		   816, 0, 540, 541, 572, 573, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+	{ DRM_MODE("720x576", DRM_MODE_TYPE_DRIVER, 29816, 720, 721, 784,
+		   816, 0, 576, 577, 608, 609, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+	{ DRM_MODE("768x576", DRM_MODE_TYPE_DRIVER, 31570, 768, 769, 832,
+		   864, 0, 576, 577, 608, 609, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+	{ DRM_MODE("800x600", DRM_MODE_TYPE_DRIVER, 34030, 800, 801, 864,
+		   896, 0, 600, 601, 632, 633, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+	{ DRM_MODE("832x624", DRM_MODE_TYPE_DRIVER, 36581, 832, 833, 896,
+		   928, 0, 624, 625, 656, 657, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+	{ DRM_MODE("920x766", DRM_MODE_TYPE_DRIVER, 48707, 920, 921, 984,
+		   1016, 0, 766, 767, 798, 799, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+	{ DRM_MODE("1024x768", DRM_MODE_TYPE_DRIVER, 53827, 1024, 1025, 1088,
+		   1120, 0, 768, 769, 800, 801, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+	{ DRM_MODE("1280x1024", DRM_MODE_TYPE_DRIVER, 87265, 1280, 1281, 1344,
+		   1376, 0, 1024, 1025, 1056, 1057, 0,
+		   DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC) },
+};
+
+static void psb_intel_sdvo_get_tv_modes(struct drm_connector *connector)
+{
+	struct psb_intel_sdvo *psb_intel_sdvo = intel_attached_sdvo(connector);
+	struct psb_intel_sdvo_sdtv_resolution_request tv_res;
+	uint32_t reply = 0, format_map = 0;
+	int i;
+
+	/* Read the list of supported input resolutions for the selected TV
+	 * format.
+	 */
+	format_map = 1 << psb_intel_sdvo->tv_format_index;
+	memcpy(&tv_res, &format_map,
+	       min(sizeof(format_map), sizeof(struct psb_intel_sdvo_sdtv_resolution_request)));
+
+	if (!psb_intel_sdvo_set_target_output(psb_intel_sdvo, psb_intel_sdvo->attached_output))
+		return;
+
+	BUILD_BUG_ON(sizeof(tv_res) != 3);
+	if (!psb_intel_sdvo_write_cmd(psb_intel_sdvo,
+				  SDVO_CMD_GET_SDTV_RESOLUTION_SUPPORT,
+				  &tv_res, sizeof(tv_res)))
+		return;
+	if (!psb_intel_sdvo_read_response(psb_intel_sdvo, &reply, 3))
+		return;
+
+	for (i = 0; i < ARRAY_SIZE(sdvo_tv_modes); i++)
+		if (reply & (1 << i)) {
+			struct drm_display_mode *nmode;
+			nmode = drm_mode_duplicate(connector->dev,
+						   &sdvo_tv_modes[i]);
+			if (nmode)
+				drm_mode_probed_add(connector, nmode);
+		}
+}
+
+static void psb_intel_sdvo_get_lvds_modes(struct drm_connector *connector)
+{
+	struct psb_intel_sdvo *psb_intel_sdvo = intel_attached_sdvo(connector);
+	struct drm_psb_private *dev_priv = connector->dev->dev_private;
+	struct drm_display_mode *newmode;
+
+	/*
+	 * Attempt to get the mode list from DDC.
+	 * Assume that the preferred modes are
+	 * arranged in priority order.
+	 */
+	psb_intel_ddc_get_modes(connector, psb_intel_sdvo->i2c);
+	if (list_empty(&connector->probed_modes) == false)
+		goto end;
+
+	/* Fetch modes from VBT */
+	if (dev_priv->sdvo_lvds_vbt_mode != NULL) {
+		newmode = drm_mode_duplicate(connector->dev,
+					     dev_priv->sdvo_lvds_vbt_mode);
+		if (newmode != NULL) {
+			/* Guarantee the mode is preferred */
+			newmode->type = (DRM_MODE_TYPE_PREFERRED |
+					 DRM_MODE_TYPE_DRIVER);
+			drm_mode_probed_add(connector, newmode);
+		}
+	}
+
+end:
+	list_for_each_entry(newmode, &connector->probed_modes, head) {
+		if (newmode->type & DRM_MODE_TYPE_PREFERRED) {
+			psb_intel_sdvo->sdvo_lvds_fixed_mode =
+				drm_mode_duplicate(connector->dev, newmode);
+
+			drm_mode_set_crtcinfo(psb_intel_sdvo->sdvo_lvds_fixed_mode,
+					      0);
+
+			psb_intel_sdvo->is_lvds = true;
+			break;
+		}
+	}
+
+}
+
+static int psb_intel_sdvo_get_modes(struct drm_connector *connector)
+{
+	struct psb_intel_sdvo_connector *psb_intel_sdvo_connector = to_psb_intel_sdvo_connector(connector);
+
+	if (IS_TV(psb_intel_sdvo_connector))
+		psb_intel_sdvo_get_tv_modes(connector);
+	else if (IS_LVDS(psb_intel_sdvo_connector))
+		psb_intel_sdvo_get_lvds_modes(connector);
+	else
+		psb_intel_sdvo_get_ddc_modes(connector);
+
+	return !list_empty(&connector->probed_modes);
+}
+
+static void
+psb_intel_sdvo_destroy_enhance_property(struct drm_connector *connector)
+{
+	struct psb_intel_sdvo_connector *psb_intel_sdvo_connector = to_psb_intel_sdvo_connector(connector);
+	struct drm_device *dev = connector->dev;
+
+	if (psb_intel_sdvo_connector->left)
+		drm_property_destroy(dev, psb_intel_sdvo_connector->left);
+	if (psb_intel_sdvo_connector->right)
+		drm_property_destroy(dev, psb_intel_sdvo_connector->right);
+	if (psb_intel_sdvo_connector->top)
+		drm_property_destroy(dev, psb_intel_sdvo_connector->top);
+	if (psb_intel_sdvo_connector->bottom)
+		drm_property_destroy(dev, psb_intel_sdvo_connector->bottom);
+	if (psb_intel_sdvo_connector->hpos)
+		drm_property_destroy(dev, psb_intel_sdvo_connector->hpos);
+	if (psb_intel_sdvo_connector->vpos)
+		drm_property_destroy(dev, psb_intel_sdvo_connector->vpos);
+	if (psb_intel_sdvo_connector->saturation)
+		drm_property_destroy(dev, psb_intel_sdvo_connector->saturation);
+	if (psb_intel_sdvo_connector->contrast)
+		drm_property_destroy(dev, psb_intel_sdvo_connector->contrast);
+	if (psb_intel_sdvo_connector->hue)
+		drm_property_destroy(dev, psb_intel_sdvo_connector->hue);
+	if (psb_intel_sdvo_connector->sharpness)
+		drm_property_destroy(dev, psb_intel_sdvo_connector->sharpness);
+	if (psb_intel_sdvo_connector->flicker_filter)
+		drm_property_destroy(dev, psb_intel_sdvo_connector->flicker_filter);
+	if (psb_intel_sdvo_connector->flicker_filter_2d)
+		drm_property_destroy(dev, psb_intel_sdvo_connector->flicker_filter_2d);
+	if (psb_intel_sdvo_connector->flicker_filter_adaptive)
+		drm_property_destroy(dev, psb_intel_sdvo_connector->flicker_filter_adaptive);
+	if (psb_intel_sdvo_connector->tv_luma_filter)
+		drm_property_destroy(dev, psb_intel_sdvo_connector->tv_luma_filter);
+	if (psb_intel_sdvo_connector->tv_chroma_filter)
+		drm_property_destroy(dev, psb_intel_sdvo_connector->tv_chroma_filter);
+	if (psb_intel_sdvo_connector->dot_crawl)
+		drm_property_destroy(dev, psb_intel_sdvo_connector->dot_crawl);
+	if (psb_intel_sdvo_connector->brightness)
+		drm_property_destroy(dev, psb_intel_sdvo_connector->brightness);
+}
+
+static void psb_intel_sdvo_destroy(struct drm_connector *connector)
+{
+	struct psb_intel_sdvo_connector *psb_intel_sdvo_connector = to_psb_intel_sdvo_connector(connector);
+
+	if (psb_intel_sdvo_connector->tv_format)
+		drm_property_destroy(connector->dev,
+				     psb_intel_sdvo_connector->tv_format);
+
+	psb_intel_sdvo_destroy_enhance_property(connector);
+	drm_sysfs_connector_remove(connector);
+	drm_connector_cleanup(connector);
+	kfree(connector);
+}
+
+static bool psb_intel_sdvo_detect_hdmi_audio(struct drm_connector *connector)
+{
+	struct psb_intel_sdvo *psb_intel_sdvo = intel_attached_sdvo(connector);
+	struct edid *edid;
+	bool has_audio = false;
+
+	if (!psb_intel_sdvo->is_hdmi)
+		return false;
+
+	edid = psb_intel_sdvo_get_edid(connector);
+	if (edid != NULL && edid->input & DRM_EDID_INPUT_DIGITAL)
+		has_audio = drm_detect_monitor_audio(edid);
+
+	return has_audio;
+}
+
+static int
+psb_intel_sdvo_set_property(struct drm_connector *connector,
+			struct drm_property *property,
+			uint64_t val)
+{
+	struct psb_intel_sdvo *psb_intel_sdvo = intel_attached_sdvo(connector);
+	struct psb_intel_sdvo_connector *psb_intel_sdvo_connector = to_psb_intel_sdvo_connector(connector);
+	struct drm_psb_private *dev_priv = connector->dev->dev_private;
+	uint16_t temp_value;
+	uint8_t cmd;
+	int ret;
+
+	ret = drm_connector_property_set_value(connector, property, val);
+	if (ret)
+		return ret;
+
+	if (property == dev_priv->force_audio_property) {
+		int i = val;
+		bool has_audio;
+
+		if (i == psb_intel_sdvo_connector->force_audio)
+			return 0;
+
+		psb_intel_sdvo_connector->force_audio = i;
+
+		if (i == 0)
+			has_audio = psb_intel_sdvo_detect_hdmi_audio(connector);
+		else
+			has_audio = i > 0;
+
+		if (has_audio == psb_intel_sdvo->has_hdmi_audio)
+			return 0;
+
+		psb_intel_sdvo->has_hdmi_audio = has_audio;
+		goto done;
+	}
+
+	if (property == dev_priv->broadcast_rgb_property) {
+		if (val == !!psb_intel_sdvo->color_range)
+			return 0;
+
+		psb_intel_sdvo->color_range = val ? SDVO_COLOR_RANGE_16_235 : 0;
+		goto done;
+	}
+
+#define CHECK_PROPERTY(name, NAME) \
+	if (psb_intel_sdvo_connector->name == property) { \
+		if (psb_intel_sdvo_connector->cur_##name == temp_value) return 0; \
+		if (psb_intel_sdvo_connector->max_##name < temp_value) return -EINVAL; \
+		cmd = SDVO_CMD_SET_##NAME; \
+		psb_intel_sdvo_connector->cur_##name = temp_value; \
+		goto set_value; \
+	}
+
+	if (property == psb_intel_sdvo_connector->tv_format) {
+		if (val >= TV_FORMAT_NUM)
+			return -EINVAL;
+
+		if (psb_intel_sdvo->tv_format_index ==
+		    psb_intel_sdvo_connector->tv_format_supported[val])
+			return 0;
+
+		psb_intel_sdvo->tv_format_index = psb_intel_sdvo_connector->tv_format_supported[val];
+		goto done;
+	} else if (IS_TV_OR_LVDS(psb_intel_sdvo_connector)) {
+		temp_value = val;
+		if (psb_intel_sdvo_connector->left == property) {
+			drm_connector_property_set_value(connector,
+							 psb_intel_sdvo_connector->right, val);
+			if (psb_intel_sdvo_connector->left_margin == temp_value)
+				return 0;
+
+			psb_intel_sdvo_connector->left_margin = temp_value;
+			psb_intel_sdvo_connector->right_margin = temp_value;
+			temp_value = psb_intel_sdvo_connector->max_hscan -
+				psb_intel_sdvo_connector->left_margin;
+			cmd = SDVO_CMD_SET_OVERSCAN_H;
+			goto set_value;
+		} else if (psb_intel_sdvo_connector->right == property) {
+			drm_connector_property_set_value(connector,
+							 psb_intel_sdvo_connector->left, val);
+			if (psb_intel_sdvo_connector->right_margin == temp_value)
+				return 0;
+
+			psb_intel_sdvo_connector->left_margin = temp_value;
+			psb_intel_sdvo_connector->right_margin = temp_value;
+			temp_value = psb_intel_sdvo_connector->max_hscan -
+				psb_intel_sdvo_connector->left_margin;
+			cmd = SDVO_CMD_SET_OVERSCAN_H;
+			goto set_value;
+		} else if (psb_intel_sdvo_connector->top == property) {
+			drm_connector_property_set_value(connector,
+							 psb_intel_sdvo_connector->bottom, val);
+			if (psb_intel_sdvo_connector->top_margin == temp_value)
+				return 0;
+
+			psb_intel_sdvo_connector->top_margin = temp_value;
+			psb_intel_sdvo_connector->bottom_margin = temp_value;
+			temp_value = psb_intel_sdvo_connector->max_vscan -
+				psb_intel_sdvo_connector->top_margin;
+			cmd = SDVO_CMD_SET_OVERSCAN_V;
+			goto set_value;
+		} else if (psb_intel_sdvo_connector->bottom == property) {
+			drm_connector_property_set_value(connector,
+							 psb_intel_sdvo_connector->top, val);
+			if (psb_intel_sdvo_connector->bottom_margin == temp_value)
+				return 0;
+
+			psb_intel_sdvo_connector->top_margin = temp_value;
+			psb_intel_sdvo_connector->bottom_margin = temp_value;
+			temp_value = psb_intel_sdvo_connector->max_vscan -
+				psb_intel_sdvo_connector->top_margin;
+			cmd = SDVO_CMD_SET_OVERSCAN_V;
+			goto set_value;
+		}
+		CHECK_PROPERTY(hpos, HPOS)
+		CHECK_PROPERTY(vpos, VPOS)
+		CHECK_PROPERTY(saturation, SATURATION)
+		CHECK_PROPERTY(contrast, CONTRAST)
+		CHECK_PROPERTY(hue, HUE)
+		CHECK_PROPERTY(brightness, BRIGHTNESS)
+		CHECK_PROPERTY(sharpness, SHARPNESS)
+		CHECK_PROPERTY(flicker_filter, FLICKER_FILTER)
+		CHECK_PROPERTY(flicker_filter_2d, FLICKER_FILTER_2D)
+		CHECK_PROPERTY(flicker_filter_adaptive, FLICKER_FILTER_ADAPTIVE)
+		CHECK_PROPERTY(tv_chroma_filter, TV_CHROMA_FILTER)
+		CHECK_PROPERTY(tv_luma_filter, TV_LUMA_FILTER)
+		CHECK_PROPERTY(dot_crawl, DOT_CRAWL)
+	}
+
+	return -EINVAL; /* unknown property */
+
+set_value:
+	if (!psb_intel_sdvo_set_value(psb_intel_sdvo, cmd, &temp_value, 2))
+		return -EIO;
+
+
+done:
+	if (psb_intel_sdvo->base.base.crtc) {
+		struct drm_crtc *crtc = psb_intel_sdvo->base.base.crtc;
+		drm_crtc_helper_set_mode(crtc, &crtc->mode, crtc->x,
+					 crtc->y, crtc->fb);
+	}
+
+	return 0;
+#undef CHECK_PROPERTY
+}
+
+static const struct drm_encoder_helper_funcs psb_intel_sdvo_helper_funcs = {
+	.dpms = psb_intel_sdvo_dpms,
+	.mode_fixup = psb_intel_sdvo_mode_fixup,
+	.prepare = psb_intel_encoder_prepare,
+	.mode_set = psb_intel_sdvo_mode_set,
+	.commit = psb_intel_encoder_commit,
+};
+
+static const struct drm_connector_funcs psb_intel_sdvo_connector_funcs = {
+	.dpms = drm_helper_connector_dpms,
+	.detect = psb_intel_sdvo_detect,
+	.fill_modes = drm_helper_probe_single_connector_modes,
+	.set_property = psb_intel_sdvo_set_property,
+	.destroy = psb_intel_sdvo_destroy,
+};
+
+static const struct drm_connector_helper_funcs psb_intel_sdvo_connector_helper_funcs = {
+	.get_modes = psb_intel_sdvo_get_modes,
+	.mode_valid = psb_intel_sdvo_mode_valid,
+	.best_encoder = psb_intel_best_encoder,
+};
+
+static void psb_intel_sdvo_enc_destroy(struct drm_encoder *encoder)
+{
+	struct psb_intel_sdvo *psb_intel_sdvo = to_psb_intel_sdvo(encoder);
+
+	if (psb_intel_sdvo->sdvo_lvds_fixed_mode != NULL)
+		drm_mode_destroy(encoder->dev,
+				 psb_intel_sdvo->sdvo_lvds_fixed_mode);
+
+	i2c_del_adapter(&psb_intel_sdvo->ddc);
+	psb_intel_encoder_destroy(encoder);
+}
+
+static const struct drm_encoder_funcs psb_intel_sdvo_enc_funcs = {
+	.destroy = psb_intel_sdvo_enc_destroy,
+};
+
+static void
+psb_intel_sdvo_guess_ddc_bus(struct psb_intel_sdvo *sdvo)
+{
+	/* FIXME: At the moment, ddc_bus = 2 is the only thing that works.
+	 * We need to figure out if this is true for all available poulsbo
+	 * hardware, or if we need to fiddle with the guessing code above.
+	 * The problem might go away if we can parse sdvo mappings from bios */
+	sdvo->ddc_bus = 2;
+
+#if 0
+	uint16_t mask = 0;
+	unsigned int num_bits;
+
+	/* Make a mask of outputs less than or equal to our own priority in the
+	 * list.
+	 */
+	switch (sdvo->controlled_output) {
+	case SDVO_OUTPUT_LVDS1:
+		mask |= SDVO_OUTPUT_LVDS1;
+	case SDVO_OUTPUT_LVDS0:
+		mask |= SDVO_OUTPUT_LVDS0;
+	case SDVO_OUTPUT_TMDS1:
+		mask |= SDVO_OUTPUT_TMDS1;
+	case SDVO_OUTPUT_TMDS0:
+		mask |= SDVO_OUTPUT_TMDS0;
+	case SDVO_OUTPUT_RGB1:
+		mask |= SDVO_OUTPUT_RGB1;
+	case SDVO_OUTPUT_RGB0:
+		mask |= SDVO_OUTPUT_RGB0;
+		break;
+	}
+
+	/* Count bits to find what number we are in the priority list. */
+	mask &= sdvo->caps.output_flags;
+	num_bits = hweight16(mask);
+	/* If more than 3 outputs, default to DDC bus 3 for now. */
+	if (num_bits > 3)
+		num_bits = 3;
+
+	/* Corresponds to SDVO_CONTROL_BUS_DDCx */
+	sdvo->ddc_bus = 1 << num_bits;
+#endif
+}
+
+/**
+ * Choose the appropriate DDC bus for control bus switch command for this
+ * SDVO output based on the controlled output.
+ *
+ * DDC bus number assignment is in a priority order of RGB outputs, then TMDS
+ * outputs, then LVDS outputs.
+ */
+static void
+psb_intel_sdvo_select_ddc_bus(struct drm_psb_private *dev_priv,
+			  struct psb_intel_sdvo *sdvo, u32 reg)
+{
+	struct sdvo_device_mapping *mapping;
+
+	if (IS_SDVOB(reg))
+		mapping = &(dev_priv->sdvo_mappings[0]);
+	else
+		mapping = &(dev_priv->sdvo_mappings[1]);
+
+	if (mapping->initialized)
+		sdvo->ddc_bus = 1 << ((mapping->ddc_pin & 0xf0) >> 4);
+	else
+		psb_intel_sdvo_guess_ddc_bus(sdvo);
+}
+
+static void
+psb_intel_sdvo_select_i2c_bus(struct drm_psb_private *dev_priv,
+			  struct psb_intel_sdvo *sdvo, u32 reg)
+{
+	struct sdvo_device_mapping *mapping;
+	u8 pin, speed;
+
+	if (IS_SDVOB(reg))
+		mapping = &dev_priv->sdvo_mappings[0];
+	else
+		mapping = &dev_priv->sdvo_mappings[1];
+
+	pin = GMBUS_PORT_DPB;
+	speed = GMBUS_RATE_1MHZ >> 8;
+	if (mapping->initialized) {
+		pin = mapping->i2c_pin;
+		speed = mapping->i2c_speed;
+	}
+
+	if (pin < GMBUS_NUM_PORTS) {
+		sdvo->i2c = &dev_priv->gmbus[pin].adapter;
+		gma_intel_gmbus_set_speed(sdvo->i2c, speed);
+		gma_intel_gmbus_force_bit(sdvo->i2c, true);
+	} else
+		sdvo->i2c = &dev_priv->gmbus[GMBUS_PORT_DPB].adapter;
+}
+
+static bool
+psb_intel_sdvo_is_hdmi_connector(struct psb_intel_sdvo *psb_intel_sdvo, int device)
+{
+	return psb_intel_sdvo_check_supp_encode(psb_intel_sdvo);
+}
+
+static u8
+psb_intel_sdvo_get_slave_addr(struct drm_device *dev, int sdvo_reg)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct sdvo_device_mapping *my_mapping, *other_mapping;
+
+	if (IS_SDVOB(sdvo_reg)) {
+		my_mapping = &dev_priv->sdvo_mappings[0];
+		other_mapping = &dev_priv->sdvo_mappings[1];
+	} else {
+		my_mapping = &dev_priv->sdvo_mappings[1];
+		other_mapping = &dev_priv->sdvo_mappings[0];
+	}
+
+	/* If the BIOS described our SDVO device, take advantage of it. */
+	if (my_mapping->slave_addr)
+		return my_mapping->slave_addr;
+
+	/* If the BIOS only described a different SDVO device, use the
+	 * address that it isn't using.
+	 */
+	if (other_mapping->slave_addr) {
+		if (other_mapping->slave_addr == 0x70)
+			return 0x72;
+		else
+			return 0x70;
+	}
+
+	/* No SDVO device info is found for another DVO port,
+	 * so use mapping assumption we had before BIOS parsing.
+	 */
+	if (IS_SDVOB(sdvo_reg))
+		return 0x70;
+	else
+		return 0x72;
+}
+
+static void
+psb_intel_sdvo_connector_init(struct psb_intel_sdvo_connector *connector,
+			  struct psb_intel_sdvo *encoder)
+{
+	drm_connector_init(encoder->base.base.dev,
+			   &connector->base.base,
+			   &psb_intel_sdvo_connector_funcs,
+			   connector->base.base.connector_type);
+
+	drm_connector_helper_add(&connector->base.base,
+				 &psb_intel_sdvo_connector_helper_funcs);
+
+	connector->base.base.interlace_allowed = 0;
+	connector->base.base.doublescan_allowed = 0;
+	connector->base.base.display_info.subpixel_order = SubPixelHorizontalRGB;
+
+	psb_intel_connector_attach_encoder(&connector->base, &encoder->base);
+	drm_sysfs_connector_add(&connector->base.base);
+}
+
+static void
+psb_intel_sdvo_add_hdmi_properties(struct psb_intel_sdvo_connector *connector)
+{
+	/* FIXME: We don't support HDMI at the moment
+	struct drm_device *dev = connector->base.base.dev;
+
+	intel_attach_force_audio_property(&connector->base.base);
+	if (INTEL_INFO(dev)->gen >= 4 && IS_MOBILE(dev))
+		intel_attach_broadcast_rgb_property(&connector->base.base);
+	*/
+}
+
+static bool
+psb_intel_sdvo_dvi_init(struct psb_intel_sdvo *psb_intel_sdvo, int device)
+{
+	struct drm_encoder *encoder = &psb_intel_sdvo->base.base;
+	struct drm_connector *connector;
+	struct psb_intel_connector *intel_connector;
+	struct psb_intel_sdvo_connector *psb_intel_sdvo_connector;
+
+	psb_intel_sdvo_connector = kzalloc(sizeof(struct psb_intel_sdvo_connector), GFP_KERNEL);
+	if (!psb_intel_sdvo_connector)
+		return false;
+
+	if (device == 0) {
+		psb_intel_sdvo->controlled_output |= SDVO_OUTPUT_TMDS0;
+		psb_intel_sdvo_connector->output_flag = SDVO_OUTPUT_TMDS0;
+	} else if (device == 1) {
+		psb_intel_sdvo->controlled_output |= SDVO_OUTPUT_TMDS1;
+		psb_intel_sdvo_connector->output_flag = SDVO_OUTPUT_TMDS1;
+	}
+
+	intel_connector = &psb_intel_sdvo_connector->base;
+	connector = &intel_connector->base;
+	// connector->polled = DRM_CONNECTOR_POLL_CONNECT | DRM_CONNECTOR_POLL_DISCONNECT;
+	encoder->encoder_type = DRM_MODE_ENCODER_TMDS;
+	connector->connector_type = DRM_MODE_CONNECTOR_DVID;
+
+	if (psb_intel_sdvo_is_hdmi_connector(psb_intel_sdvo, device)) {
+		connector->connector_type = DRM_MODE_CONNECTOR_HDMIA;
+		psb_intel_sdvo->is_hdmi = true;
+	}
+	psb_intel_sdvo->base.clone_mask = ((1 << INTEL_SDVO_NON_TV_CLONE_BIT) |
+				       (1 << INTEL_ANALOG_CLONE_BIT));
+
+	psb_intel_sdvo_connector_init(psb_intel_sdvo_connector, psb_intel_sdvo);
+	if (psb_intel_sdvo->is_hdmi)
+		psb_intel_sdvo_add_hdmi_properties(psb_intel_sdvo_connector);
+
+	return true;
+}
+
+static bool
+psb_intel_sdvo_tv_init(struct psb_intel_sdvo *psb_intel_sdvo, int type)
+{
+	struct drm_encoder *encoder = &psb_intel_sdvo->base.base;
+	struct drm_connector *connector;
+	struct psb_intel_connector *intel_connector;
+	struct psb_intel_sdvo_connector *psb_intel_sdvo_connector;
+
+	psb_intel_sdvo_connector = kzalloc(sizeof(struct psb_intel_sdvo_connector), GFP_KERNEL);
+	if (!psb_intel_sdvo_connector)
+		return false;
+
+	intel_connector = &psb_intel_sdvo_connector->base;
+	connector = &intel_connector->base;
+	encoder->encoder_type = DRM_MODE_ENCODER_TVDAC;
+	connector->connector_type = DRM_MODE_CONNECTOR_SVIDEO;
+
+	psb_intel_sdvo->controlled_output |= type;
+	psb_intel_sdvo_connector->output_flag = type;
+
+	psb_intel_sdvo->is_tv = true;
+	psb_intel_sdvo->base.needs_tv_clock = true;
+	psb_intel_sdvo->base.clone_mask = 1 << INTEL_SDVO_TV_CLONE_BIT;
+
+	psb_intel_sdvo_connector_init(psb_intel_sdvo_connector, psb_intel_sdvo);
+
+	if (!psb_intel_sdvo_tv_create_property(psb_intel_sdvo, psb_intel_sdvo_connector, type))
+		goto err;
+
+	if (!psb_intel_sdvo_create_enhance_property(psb_intel_sdvo, psb_intel_sdvo_connector))
+		goto err;
+
+	return true;
+
+err:
+	psb_intel_sdvo_destroy(connector);
+	return false;
+}
+
+static bool
+psb_intel_sdvo_analog_init(struct psb_intel_sdvo *psb_intel_sdvo, int device)
+{
+	struct drm_encoder *encoder = &psb_intel_sdvo->base.base;
+	struct drm_connector *connector;
+	struct psb_intel_connector *intel_connector;
+	struct psb_intel_sdvo_connector *psb_intel_sdvo_connector;
+
+	psb_intel_sdvo_connector = kzalloc(sizeof(struct psb_intel_sdvo_connector), GFP_KERNEL);
+	if (!psb_intel_sdvo_connector)
+		return false;
+
+	intel_connector = &psb_intel_sdvo_connector->base;
+	connector = &intel_connector->base;
+	connector->polled = DRM_CONNECTOR_POLL_CONNECT;
+	encoder->encoder_type = DRM_MODE_ENCODER_DAC;
+	connector->connector_type = DRM_MODE_CONNECTOR_VGA;
+
+	if (device == 0) {
+		psb_intel_sdvo->controlled_output |= SDVO_OUTPUT_RGB0;
+		psb_intel_sdvo_connector->output_flag = SDVO_OUTPUT_RGB0;
+	} else if (device == 1) {
+		psb_intel_sdvo->controlled_output |= SDVO_OUTPUT_RGB1;
+		psb_intel_sdvo_connector->output_flag = SDVO_OUTPUT_RGB1;
+	}
+
+	psb_intel_sdvo->base.clone_mask = ((1 << INTEL_SDVO_NON_TV_CLONE_BIT) |
+				       (1 << INTEL_ANALOG_CLONE_BIT));
+
+	psb_intel_sdvo_connector_init(psb_intel_sdvo_connector,
+				  psb_intel_sdvo);
+	return true;
+}
+
+static bool
+psb_intel_sdvo_lvds_init(struct psb_intel_sdvo *psb_intel_sdvo, int device)
+{
+	struct drm_encoder *encoder = &psb_intel_sdvo->base.base;
+	struct drm_connector *connector;
+	struct psb_intel_connector *intel_connector;
+	struct psb_intel_sdvo_connector *psb_intel_sdvo_connector;
+
+	psb_intel_sdvo_connector = kzalloc(sizeof(struct psb_intel_sdvo_connector), GFP_KERNEL);
+	if (!psb_intel_sdvo_connector)
+		return false;
+
+	intel_connector = &psb_intel_sdvo_connector->base;
+	connector = &intel_connector->base;
+	encoder->encoder_type = DRM_MODE_ENCODER_LVDS;
+	connector->connector_type = DRM_MODE_CONNECTOR_LVDS;
+
+	if (device == 0) {
+		psb_intel_sdvo->controlled_output |= SDVO_OUTPUT_LVDS0;
+		psb_intel_sdvo_connector->output_flag = SDVO_OUTPUT_LVDS0;
+	} else if (device == 1) {
+		psb_intel_sdvo->controlled_output |= SDVO_OUTPUT_LVDS1;
+		psb_intel_sdvo_connector->output_flag = SDVO_OUTPUT_LVDS1;
+	}
+
+	psb_intel_sdvo->base.clone_mask = ((1 << INTEL_ANALOG_CLONE_BIT) |
+				       (1 << INTEL_SDVO_LVDS_CLONE_BIT));
+
+	psb_intel_sdvo_connector_init(psb_intel_sdvo_connector, psb_intel_sdvo);
+	if (!psb_intel_sdvo_create_enhance_property(psb_intel_sdvo, psb_intel_sdvo_connector))
+		goto err;
+
+	return true;
+
+err:
+	psb_intel_sdvo_destroy(connector);
+	return false;
+}
+
+static bool
+psb_intel_sdvo_output_setup(struct psb_intel_sdvo *psb_intel_sdvo, uint16_t flags)
+{
+	psb_intel_sdvo->is_tv = false;
+	psb_intel_sdvo->base.needs_tv_clock = false;
+	psb_intel_sdvo->is_lvds = false;
+
+	/* SDVO requires XXX1 function may not exist unless it has XXX0 function.*/
+
+	if (flags & SDVO_OUTPUT_TMDS0)
+		if (!psb_intel_sdvo_dvi_init(psb_intel_sdvo, 0))
+			return false;
+
+	if ((flags & SDVO_TMDS_MASK) == SDVO_TMDS_MASK)
+		if (!psb_intel_sdvo_dvi_init(psb_intel_sdvo, 1))
+			return false;
+
+	/* TV has no XXX1 function block */
+	if (flags & SDVO_OUTPUT_SVID0)
+		if (!psb_intel_sdvo_tv_init(psb_intel_sdvo, SDVO_OUTPUT_SVID0))
+			return false;
+
+	if (flags & SDVO_OUTPUT_CVBS0)
+		if (!psb_intel_sdvo_tv_init(psb_intel_sdvo, SDVO_OUTPUT_CVBS0))
+			return false;
+
+	if (flags & SDVO_OUTPUT_RGB0)
+		if (!psb_intel_sdvo_analog_init(psb_intel_sdvo, 0))
+			return false;
+
+	if ((flags & SDVO_RGB_MASK) == SDVO_RGB_MASK)
+		if (!psb_intel_sdvo_analog_init(psb_intel_sdvo, 1))
+			return false;
+
+	if (flags & SDVO_OUTPUT_LVDS0)
+		if (!psb_intel_sdvo_lvds_init(psb_intel_sdvo, 0))
+			return false;
+
+	if ((flags & SDVO_LVDS_MASK) == SDVO_LVDS_MASK)
+		if (!psb_intel_sdvo_lvds_init(psb_intel_sdvo, 1))
+			return false;
+
+	if ((flags & SDVO_OUTPUT_MASK) == 0) {
+		unsigned char bytes[2];
+
+		psb_intel_sdvo->controlled_output = 0;
+		memcpy(bytes, &psb_intel_sdvo->caps.output_flags, 2);
+		DRM_DEBUG_KMS("%s: Unknown SDVO output type (0x%02x%02x)\n",
+			      SDVO_NAME(psb_intel_sdvo),
+			      bytes[0], bytes[1]);
+		return false;
+	}
+	psb_intel_sdvo->base.crtc_mask = (1 << 0) | (1 << 1);
+
+	return true;
+}
+
+static bool psb_intel_sdvo_tv_create_property(struct psb_intel_sdvo *psb_intel_sdvo,
+					  struct psb_intel_sdvo_connector *psb_intel_sdvo_connector,
+					  int type)
+{
+	struct drm_device *dev = psb_intel_sdvo->base.base.dev;
+	struct psb_intel_sdvo_tv_format format;
+	uint32_t format_map, i;
+
+	if (!psb_intel_sdvo_set_target_output(psb_intel_sdvo, type))
+		return false;
+
+	BUILD_BUG_ON(sizeof(format) != 6);
+	if (!psb_intel_sdvo_get_value(psb_intel_sdvo,
+				  SDVO_CMD_GET_SUPPORTED_TV_FORMATS,
+				  &format, sizeof(format)))
+		return false;
+
+	memcpy(&format_map, &format, min(sizeof(format_map), sizeof(format)));
+
+	if (format_map == 0)
+		return false;
+
+	psb_intel_sdvo_connector->format_supported_num = 0;
+	for (i = 0 ; i < TV_FORMAT_NUM; i++)
+		if (format_map & (1 << i))
+			psb_intel_sdvo_connector->tv_format_supported[psb_intel_sdvo_connector->format_supported_num++] = i;
+
+
+	psb_intel_sdvo_connector->tv_format =
+			drm_property_create(dev, DRM_MODE_PROP_ENUM,
+					    "mode", psb_intel_sdvo_connector->format_supported_num);
+	if (!psb_intel_sdvo_connector->tv_format)
+		return false;
+
+	for (i = 0; i < psb_intel_sdvo_connector->format_supported_num; i++)
+		drm_property_add_enum(
+				psb_intel_sdvo_connector->tv_format, i,
+				i, tv_format_names[psb_intel_sdvo_connector->tv_format_supported[i]]);
+
+	psb_intel_sdvo->tv_format_index = psb_intel_sdvo_connector->tv_format_supported[0];
+	drm_connector_attach_property(&psb_intel_sdvo_connector->base.base,
+				      psb_intel_sdvo_connector->tv_format, 0);
+	return true;
+
+}
+
+#define ENHANCEMENT(name, NAME) do { \
+	if (enhancements.name) { \
+		if (!psb_intel_sdvo_get_value(psb_intel_sdvo, SDVO_CMD_GET_MAX_##NAME, &data_value, 4) || \
+		    !psb_intel_sdvo_get_value(psb_intel_sdvo, SDVO_CMD_GET_##NAME, &response, 2)) \
+			return false; \
+		psb_intel_sdvo_connector->max_##name = data_value[0]; \
+		psb_intel_sdvo_connector->cur_##name = response; \
+		psb_intel_sdvo_connector->name = \
+			drm_property_create(dev, DRM_MODE_PROP_RANGE, #name, 2); \
+		if (!psb_intel_sdvo_connector->name) return false; \
+		psb_intel_sdvo_connector->name->values[0] = 0; \
+		psb_intel_sdvo_connector->name->values[1] = data_value[0]; \
+		drm_connector_attach_property(connector, \
+					      psb_intel_sdvo_connector->name, \
+					      psb_intel_sdvo_connector->cur_##name); \
+		DRM_DEBUG_KMS(#name ": max %d, default %d, current %d\n", \
+			      data_value[0], data_value[1], response); \
+	} \
+} while(0)
+
+static bool
+psb_intel_sdvo_create_enhance_property_tv(struct psb_intel_sdvo *psb_intel_sdvo,
+				      struct psb_intel_sdvo_connector *psb_intel_sdvo_connector,
+				      struct psb_intel_sdvo_enhancements_reply enhancements)
+{
+	struct drm_device *dev = psb_intel_sdvo->base.base.dev;
+	struct drm_connector *connector = &psb_intel_sdvo_connector->base.base;
+	uint16_t response, data_value[2];
+
+	/* when horizontal overscan is supported, Add the left/right  property */
+	if (enhancements.overscan_h) {
+		if (!psb_intel_sdvo_get_value(psb_intel_sdvo,
+					  SDVO_CMD_GET_MAX_OVERSCAN_H,
+					  &data_value, 4))
+			return false;
+
+		if (!psb_intel_sdvo_get_value(psb_intel_sdvo,
+					  SDVO_CMD_GET_OVERSCAN_H,
+					  &response, 2))
+			return false;
+
+		psb_intel_sdvo_connector->max_hscan = data_value[0];
+		psb_intel_sdvo_connector->left_margin = data_value[0] - response;
+		psb_intel_sdvo_connector->right_margin = psb_intel_sdvo_connector->left_margin;
+		psb_intel_sdvo_connector->left =
+			drm_property_create(dev, DRM_MODE_PROP_RANGE,
+					    "left_margin", 2);
+		if (!psb_intel_sdvo_connector->left)
+			return false;
+
+		psb_intel_sdvo_connector->left->values[0] = 0;
+		psb_intel_sdvo_connector->left->values[1] = data_value[0];
+		drm_connector_attach_property(connector,
+					      psb_intel_sdvo_connector->left,
+					      psb_intel_sdvo_connector->left_margin);
+
+		psb_intel_sdvo_connector->right =
+			drm_property_create(dev, DRM_MODE_PROP_RANGE,
+					    "right_margin", 2);
+		if (!psb_intel_sdvo_connector->right)
+			return false;
+
+		psb_intel_sdvo_connector->right->values[0] = 0;
+		psb_intel_sdvo_connector->right->values[1] = data_value[0];
+		drm_connector_attach_property(connector,
+					      psb_intel_sdvo_connector->right,
+					      psb_intel_sdvo_connector->right_margin);
+		DRM_DEBUG_KMS("h_overscan: max %d, "
+			      "default %d, current %d\n",
+			      data_value[0], data_value[1], response);
+	}
+
+	if (enhancements.overscan_v) {
+		if (!psb_intel_sdvo_get_value(psb_intel_sdvo,
+					  SDVO_CMD_GET_MAX_OVERSCAN_V,
+					  &data_value, 4))
+			return false;
+
+		if (!psb_intel_sdvo_get_value(psb_intel_sdvo,
+					  SDVO_CMD_GET_OVERSCAN_V,
+					  &response, 2))
+			return false;
+
+		psb_intel_sdvo_connector->max_vscan = data_value[0];
+		psb_intel_sdvo_connector->top_margin = data_value[0] - response;
+		psb_intel_sdvo_connector->bottom_margin = psb_intel_sdvo_connector->top_margin;
+		psb_intel_sdvo_connector->top =
+			drm_property_create(dev, DRM_MODE_PROP_RANGE,
+					    "top_margin", 2);
+		if (!psb_intel_sdvo_connector->top)
+			return false;
+
+		psb_intel_sdvo_connector->top->values[0] = 0;
+		psb_intel_sdvo_connector->top->values[1] = data_value[0];
+		drm_connector_attach_property(connector,
+					      psb_intel_sdvo_connector->top,
+					      psb_intel_sdvo_connector->top_margin);
+
+		psb_intel_sdvo_connector->bottom =
+			drm_property_create(dev, DRM_MODE_PROP_RANGE,
+					    "bottom_margin", 2);
+		if (!psb_intel_sdvo_connector->bottom)
+			return false;
+
+		psb_intel_sdvo_connector->bottom->values[0] = 0;
+		psb_intel_sdvo_connector->bottom->values[1] = data_value[0];
+		drm_connector_attach_property(connector,
+					      psb_intel_sdvo_connector->bottom,
+					      psb_intel_sdvo_connector->bottom_margin);
+		DRM_DEBUG_KMS("v_overscan: max %d, "
+			      "default %d, current %d\n",
+			      data_value[0], data_value[1], response);
+	}
+
+	ENHANCEMENT(hpos, HPOS);
+	ENHANCEMENT(vpos, VPOS);
+	ENHANCEMENT(saturation, SATURATION);
+	ENHANCEMENT(contrast, CONTRAST);
+	ENHANCEMENT(hue, HUE);
+	ENHANCEMENT(sharpness, SHARPNESS);
+	ENHANCEMENT(brightness, BRIGHTNESS);
+	ENHANCEMENT(flicker_filter, FLICKER_FILTER);
+	ENHANCEMENT(flicker_filter_adaptive, FLICKER_FILTER_ADAPTIVE);
+	ENHANCEMENT(flicker_filter_2d, FLICKER_FILTER_2D);
+	ENHANCEMENT(tv_chroma_filter, TV_CHROMA_FILTER);
+	ENHANCEMENT(tv_luma_filter, TV_LUMA_FILTER);
+
+	if (enhancements.dot_crawl) {
+		if (!psb_intel_sdvo_get_value(psb_intel_sdvo, SDVO_CMD_GET_DOT_CRAWL, &response, 2))
+			return false;
+
+		psb_intel_sdvo_connector->max_dot_crawl = 1;
+		psb_intel_sdvo_connector->cur_dot_crawl = response & 0x1;
+		psb_intel_sdvo_connector->dot_crawl =
+			drm_property_create(dev, DRM_MODE_PROP_RANGE, "dot_crawl", 2);
+		if (!psb_intel_sdvo_connector->dot_crawl)
+			return false;
+
+		psb_intel_sdvo_connector->dot_crawl->values[0] = 0;
+		psb_intel_sdvo_connector->dot_crawl->values[1] = 1;
+		drm_connector_attach_property(connector,
+					      psb_intel_sdvo_connector->dot_crawl,
+					      psb_intel_sdvo_connector->cur_dot_crawl);
+		DRM_DEBUG_KMS("dot crawl: current %d\n", response);
+	}
+
+	return true;
+}
+
+static bool
+psb_intel_sdvo_create_enhance_property_lvds(struct psb_intel_sdvo *psb_intel_sdvo,
+					struct psb_intel_sdvo_connector *psb_intel_sdvo_connector,
+					struct psb_intel_sdvo_enhancements_reply enhancements)
+{
+	struct drm_device *dev = psb_intel_sdvo->base.base.dev;
+	struct drm_connector *connector = &psb_intel_sdvo_connector->base.base;
+	uint16_t response, data_value[2];
+
+	ENHANCEMENT(brightness, BRIGHTNESS);
+
+	return true;
+}
+#undef ENHANCEMENT
+
+static bool psb_intel_sdvo_create_enhance_property(struct psb_intel_sdvo *psb_intel_sdvo,
+					       struct psb_intel_sdvo_connector *psb_intel_sdvo_connector)
+{
+	union {
+		struct psb_intel_sdvo_enhancements_reply reply;
+		uint16_t response;
+	} enhancements;
+
+	BUILD_BUG_ON(sizeof(enhancements) != 2);
+
+	enhancements.response = 0;
+	psb_intel_sdvo_get_value(psb_intel_sdvo,
+			     SDVO_CMD_GET_SUPPORTED_ENHANCEMENTS,
+			     &enhancements, sizeof(enhancements));
+	if (enhancements.response == 0) {
+		DRM_DEBUG_KMS("No enhancement is supported\n");
+		return true;
+	}
+
+	if (IS_TV(psb_intel_sdvo_connector))
+		return psb_intel_sdvo_create_enhance_property_tv(psb_intel_sdvo, psb_intel_sdvo_connector, enhancements.reply);
+	else if(IS_LVDS(psb_intel_sdvo_connector))
+		return psb_intel_sdvo_create_enhance_property_lvds(psb_intel_sdvo, psb_intel_sdvo_connector, enhancements.reply);
+	else
+		return true;
+}
+
+static int psb_intel_sdvo_ddc_proxy_xfer(struct i2c_adapter *adapter,
+				     struct i2c_msg *msgs,
+				     int num)
+{
+	struct psb_intel_sdvo *sdvo = adapter->algo_data;
+
+	if (!psb_intel_sdvo_set_control_bus_switch(sdvo, sdvo->ddc_bus))
+		return -EIO;
+
+	return sdvo->i2c->algo->master_xfer(sdvo->i2c, msgs, num);
+}
+
+static u32 psb_intel_sdvo_ddc_proxy_func(struct i2c_adapter *adapter)
+{
+	struct psb_intel_sdvo *sdvo = adapter->algo_data;
+	return sdvo->i2c->algo->functionality(sdvo->i2c);
+}
+
+static const struct i2c_algorithm psb_intel_sdvo_ddc_proxy = {
+	.master_xfer	= psb_intel_sdvo_ddc_proxy_xfer,
+	.functionality	= psb_intel_sdvo_ddc_proxy_func
+};
+
+static bool
+psb_intel_sdvo_init_ddc_proxy(struct psb_intel_sdvo *sdvo,
+			  struct drm_device *dev)
+{
+	sdvo->ddc.owner = THIS_MODULE;
+	sdvo->ddc.class = I2C_CLASS_DDC;
+	snprintf(sdvo->ddc.name, I2C_NAME_SIZE, "SDVO DDC proxy");
+	sdvo->ddc.dev.parent = &dev->pdev->dev;
+	sdvo->ddc.algo_data = sdvo;
+	sdvo->ddc.algo = &psb_intel_sdvo_ddc_proxy;
+
+	return i2c_add_adapter(&sdvo->ddc) == 0;
+}
+
+bool psb_intel_sdvo_init(struct drm_device *dev, int sdvo_reg)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	struct psb_intel_encoder *psb_intel_encoder;
+	struct psb_intel_sdvo *psb_intel_sdvo;
+	int i;
+
+	psb_intel_sdvo = kzalloc(sizeof(struct psb_intel_sdvo), GFP_KERNEL);
+	if (!psb_intel_sdvo)
+		return false;
+
+	psb_intel_sdvo->sdvo_reg = sdvo_reg;
+	psb_intel_sdvo->slave_addr = psb_intel_sdvo_get_slave_addr(dev, sdvo_reg) >> 1;
+	psb_intel_sdvo_select_i2c_bus(dev_priv, psb_intel_sdvo, sdvo_reg);
+	if (!psb_intel_sdvo_init_ddc_proxy(psb_intel_sdvo, dev)) {
+		kfree(psb_intel_sdvo);
+		return false;
+	}
+
+	/* encoder type will be decided later */
+	psb_intel_encoder = &psb_intel_sdvo->base;
+	psb_intel_encoder->type = INTEL_OUTPUT_SDVO;
+	drm_encoder_init(dev, &psb_intel_encoder->base, &psb_intel_sdvo_enc_funcs, 0);
+
+	/* Read the regs to test if we can talk to the device */
+	for (i = 0; i < 0x40; i++) {
+		u8 byte;
+
+		if (!psb_intel_sdvo_read_byte(psb_intel_sdvo, i, &byte)) {
+			DRM_DEBUG_KMS("No SDVO device found on SDVO%c\n",
+				      IS_SDVOB(sdvo_reg) ? 'B' : 'C');
+			goto err;
+		}
+	}
+
+	if (IS_SDVOB(sdvo_reg))
+		dev_priv->hotplug_supported_mask |= SDVOB_HOTPLUG_INT_STATUS;
+	else
+		dev_priv->hotplug_supported_mask |= SDVOC_HOTPLUG_INT_STATUS;
+
+	drm_encoder_helper_add(&psb_intel_encoder->base, &psb_intel_sdvo_helper_funcs);
+
+	/* In default case sdvo lvds is false */
+	if (!psb_intel_sdvo_get_capabilities(psb_intel_sdvo, &psb_intel_sdvo->caps))
+		goto err;
+
+	if (psb_intel_sdvo_output_setup(psb_intel_sdvo,
+				    psb_intel_sdvo->caps.output_flags) != true) {
+		DRM_DEBUG_KMS("SDVO output failed to setup on SDVO%c\n",
+			      IS_SDVOB(sdvo_reg) ? 'B' : 'C');
+		goto err;
+	}
+
+	psb_intel_sdvo_select_ddc_bus(dev_priv, psb_intel_sdvo, sdvo_reg);
+
+	/* Set the input timing to the screen. Assume always input 0. */
+	if (!psb_intel_sdvo_set_target_input(psb_intel_sdvo))
+		goto err;
+
+	if (!psb_intel_sdvo_get_input_pixel_clock_range(psb_intel_sdvo,
+						    &psb_intel_sdvo->pixel_clock_min,
+						    &psb_intel_sdvo->pixel_clock_max))
+		goto err;
+
+	DRM_DEBUG_KMS("%s device VID/DID: %02X:%02X.%02X, "
+			"clock range %dMHz - %dMHz, "
+			"input 1: %c, input 2: %c, "
+			"output 1: %c, output 2: %c\n",
+			SDVO_NAME(psb_intel_sdvo),
+			psb_intel_sdvo->caps.vendor_id, psb_intel_sdvo->caps.device_id,
+			psb_intel_sdvo->caps.device_rev_id,
+			psb_intel_sdvo->pixel_clock_min / 1000,
+			psb_intel_sdvo->pixel_clock_max / 1000,
+			(psb_intel_sdvo->caps.sdvo_inputs_mask & 0x1) ? 'Y' : 'N',
+			(psb_intel_sdvo->caps.sdvo_inputs_mask & 0x2) ? 'Y' : 'N',
+			/* check currently supported outputs */
+			psb_intel_sdvo->caps.output_flags &
+			(SDVO_OUTPUT_TMDS0 | SDVO_OUTPUT_RGB0) ? 'Y' : 'N',
+			psb_intel_sdvo->caps.output_flags &
+			(SDVO_OUTPUT_TMDS1 | SDVO_OUTPUT_RGB1) ? 'Y' : 'N');
+	return true;
+
+err:
+	drm_encoder_cleanup(&psb_intel_encoder->base);
+	i2c_del_adapter(&psb_intel_sdvo->ddc);
+	kfree(psb_intel_sdvo);
+
+	return false;
+}
diff --git a/drivers/gpu/drm/gma500/psb_intel_sdvo_regs.h b/drivers/gpu/drm/gma500/psb_intel_sdvo_regs.h
new file mode 100644
index 000000000000..600e79744d68
--- /dev/null
+++ b/drivers/gpu/drm/gma500/psb_intel_sdvo_regs.h
@@ -0,0 +1,723 @@
+/*
+ * Copyright ? 2006-2007 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ *	Eric Anholt <eric@anholt.net>
+ */
+
+/**
+ * @file SDVO command definitions and structures.
+ */
+
+#define SDVO_OUTPUT_FIRST   (0)
+#define SDVO_OUTPUT_TMDS0   (1 << 0)
+#define SDVO_OUTPUT_RGB0    (1 << 1)
+#define SDVO_OUTPUT_CVBS0   (1 << 2)
+#define SDVO_OUTPUT_SVID0   (1 << 3)
+#define SDVO_OUTPUT_YPRPB0  (1 << 4)
+#define SDVO_OUTPUT_SCART0  (1 << 5)
+#define SDVO_OUTPUT_LVDS0   (1 << 6)
+#define SDVO_OUTPUT_TMDS1   (1 << 8)
+#define SDVO_OUTPUT_RGB1    (1 << 9)
+#define SDVO_OUTPUT_CVBS1   (1 << 10)
+#define SDVO_OUTPUT_SVID1   (1 << 11)
+#define SDVO_OUTPUT_YPRPB1  (1 << 12)
+#define SDVO_OUTPUT_SCART1  (1 << 13)
+#define SDVO_OUTPUT_LVDS1   (1 << 14)
+#define SDVO_OUTPUT_LAST    (14)
+
+struct psb_intel_sdvo_caps {
+    u8 vendor_id;
+    u8 device_id;
+    u8 device_rev_id;
+    u8 sdvo_version_major;
+    u8 sdvo_version_minor;
+    unsigned int sdvo_inputs_mask:2;
+    unsigned int smooth_scaling:1;
+    unsigned int sharp_scaling:1;
+    unsigned int up_scaling:1;
+    unsigned int down_scaling:1;
+    unsigned int stall_support:1;
+    unsigned int pad:1;
+    u16 output_flags;
+} __attribute__((packed));
+
+/** This matches the EDID DTD structure, more or less */
+struct psb_intel_sdvo_dtd {
+    struct {
+	u16 clock;		/**< pixel clock, in 10kHz units */
+	u8 h_active;		/**< lower 8 bits (pixels) */
+	u8 h_blank;		/**< lower 8 bits (pixels) */
+	u8 h_high;		/**< upper 4 bits each h_active, h_blank */
+	u8 v_active;		/**< lower 8 bits (lines) */
+	u8 v_blank;		/**< lower 8 bits (lines) */
+	u8 v_high;		/**< upper 4 bits each v_active, v_blank */
+    } part1;
+
+    struct {
+	u8 h_sync_off;	/**< lower 8 bits, from hblank start */
+	u8 h_sync_width;	/**< lower 8 bits (pixels) */
+	/** lower 4 bits each vsync offset, vsync width */
+	u8 v_sync_off_width;
+	/**
+	 * 2 high bits of hsync offset, 2 high bits of hsync width,
+	 * bits 4-5 of vsync offset, and 2 high bits of vsync width.
+	 */
+	u8 sync_off_width_high;
+	u8 dtd_flags;
+	u8 sdvo_flags;
+	/** bits 6-7 of vsync offset at bits 6-7 */
+	u8 v_sync_off_high;
+	u8 reserved;
+    } part2;
+} __attribute__((packed));
+
+struct psb_intel_sdvo_pixel_clock_range {
+    u16 min;			/**< pixel clock, in 10kHz units */
+    u16 max;			/**< pixel clock, in 10kHz units */
+} __attribute__((packed));
+
+struct psb_intel_sdvo_preferred_input_timing_args {
+    u16 clock;
+    u16 width;
+    u16 height;
+    u8	interlace:1;
+    u8	scaled:1;
+    u8	pad:6;
+} __attribute__((packed));
+
+/* I2C registers for SDVO */
+#define SDVO_I2C_ARG_0				0x07
+#define SDVO_I2C_ARG_1				0x06
+#define SDVO_I2C_ARG_2				0x05
+#define SDVO_I2C_ARG_3				0x04
+#define SDVO_I2C_ARG_4				0x03
+#define SDVO_I2C_ARG_5				0x02
+#define SDVO_I2C_ARG_6				0x01
+#define SDVO_I2C_ARG_7				0x00
+#define SDVO_I2C_OPCODE				0x08
+#define SDVO_I2C_CMD_STATUS			0x09
+#define SDVO_I2C_RETURN_0			0x0a
+#define SDVO_I2C_RETURN_1			0x0b
+#define SDVO_I2C_RETURN_2			0x0c
+#define SDVO_I2C_RETURN_3			0x0d
+#define SDVO_I2C_RETURN_4			0x0e
+#define SDVO_I2C_RETURN_5			0x0f
+#define SDVO_I2C_RETURN_6			0x10
+#define SDVO_I2C_RETURN_7			0x11
+#define SDVO_I2C_VENDOR_BEGIN			0x20
+
+/* Status results */
+#define SDVO_CMD_STATUS_POWER_ON		0x0
+#define SDVO_CMD_STATUS_SUCCESS			0x1
+#define SDVO_CMD_STATUS_NOTSUPP			0x2
+#define SDVO_CMD_STATUS_INVALID_ARG		0x3
+#define SDVO_CMD_STATUS_PENDING			0x4
+#define SDVO_CMD_STATUS_TARGET_NOT_SPECIFIED	0x5
+#define SDVO_CMD_STATUS_SCALING_NOT_SUPP	0x6
+
+/* SDVO commands, argument/result registers */
+
+#define SDVO_CMD_RESET					0x01
+
+/** Returns a struct intel_sdvo_caps */
+#define SDVO_CMD_GET_DEVICE_CAPS			0x02
+
+#define SDVO_CMD_GET_FIRMWARE_REV			0x86
+# define SDVO_DEVICE_FIRMWARE_MINOR			SDVO_I2C_RETURN_0
+# define SDVO_DEVICE_FIRMWARE_MAJOR			SDVO_I2C_RETURN_1
+# define SDVO_DEVICE_FIRMWARE_PATCH			SDVO_I2C_RETURN_2
+
+/**
+ * Reports which inputs are trained (managed to sync).
+ *
+ * Devices must have trained within 2 vsyncs of a mode change.
+ */
+#define SDVO_CMD_GET_TRAINED_INPUTS			0x03
+struct psb_intel_sdvo_get_trained_inputs_response {
+    unsigned int input0_trained:1;
+    unsigned int input1_trained:1;
+    unsigned int pad:6;
+} __attribute__((packed));
+
+/** Returns a struct intel_sdvo_output_flags of active outputs. */
+#define SDVO_CMD_GET_ACTIVE_OUTPUTS			0x04
+
+/**
+ * Sets the current set of active outputs.
+ *
+ * Takes a struct intel_sdvo_output_flags.  Must be preceded by a SET_IN_OUT_MAP
+ * on multi-output devices.
+ */
+#define SDVO_CMD_SET_ACTIVE_OUTPUTS			0x05
+
+/**
+ * Returns the current mapping of SDVO inputs to outputs on the device.
+ *
+ * Returns two struct intel_sdvo_output_flags structures.
+ */
+#define SDVO_CMD_GET_IN_OUT_MAP				0x06
+struct psb_intel_sdvo_in_out_map {
+    u16 in0, in1;
+};
+
+/**
+ * Sets the current mapping of SDVO inputs to outputs on the device.
+ *
+ * Takes two struct i380_sdvo_output_flags structures.
+ */
+#define SDVO_CMD_SET_IN_OUT_MAP				0x07
+
+/**
+ * Returns a struct intel_sdvo_output_flags of attached displays.
+ */
+#define SDVO_CMD_GET_ATTACHED_DISPLAYS			0x0b
+
+/**
+ * Returns a struct intel_sdvo_ouptut_flags of displays supporting hot plugging.
+ */
+#define SDVO_CMD_GET_HOT_PLUG_SUPPORT			0x0c
+
+/**
+ * Takes a struct intel_sdvo_output_flags.
+ */
+#define SDVO_CMD_SET_ACTIVE_HOT_PLUG			0x0d
+
+/**
+ * Returns a struct intel_sdvo_output_flags of displays with hot plug
+ * interrupts enabled.
+ */
+#define SDVO_CMD_GET_ACTIVE_HOT_PLUG			0x0e
+
+#define SDVO_CMD_GET_INTERRUPT_EVENT_SOURCE		0x0f
+struct intel_sdvo_get_interrupt_event_source_response {
+    u16 interrupt_status;
+    unsigned int ambient_light_interrupt:1;
+    unsigned int hdmi_audio_encrypt_change:1;
+    unsigned int pad:6;
+} __attribute__((packed));
+
+/**
+ * Selects which input is affected by future input commands.
+ *
+ * Commands affected include SET_INPUT_TIMINGS_PART[12],
+ * GET_INPUT_TIMINGS_PART[12], GET_PREFERRED_INPUT_TIMINGS_PART[12],
+ * GET_INPUT_PIXEL_CLOCK_RANGE, and CREATE_PREFERRED_INPUT_TIMINGS.
+ */
+#define SDVO_CMD_SET_TARGET_INPUT			0x10
+struct psb_intel_sdvo_set_target_input_args {
+    unsigned int target_1:1;
+    unsigned int pad:7;
+} __attribute__((packed));
+
+/**
+ * Takes a struct intel_sdvo_output_flags of which outputs are targeted by
+ * future output commands.
+ *
+ * Affected commands inclue SET_OUTPUT_TIMINGS_PART[12],
+ * GET_OUTPUT_TIMINGS_PART[12], and GET_OUTPUT_PIXEL_CLOCK_RANGE.
+ */
+#define SDVO_CMD_SET_TARGET_OUTPUT			0x11
+
+#define SDVO_CMD_GET_INPUT_TIMINGS_PART1		0x12
+#define SDVO_CMD_GET_INPUT_TIMINGS_PART2		0x13
+#define SDVO_CMD_SET_INPUT_TIMINGS_PART1		0x14
+#define SDVO_CMD_SET_INPUT_TIMINGS_PART2		0x15
+#define SDVO_CMD_SET_OUTPUT_TIMINGS_PART1		0x16
+#define SDVO_CMD_SET_OUTPUT_TIMINGS_PART2		0x17
+#define SDVO_CMD_GET_OUTPUT_TIMINGS_PART1		0x18
+#define SDVO_CMD_GET_OUTPUT_TIMINGS_PART2		0x19
+/* Part 1 */
+# define SDVO_DTD_CLOCK_LOW				SDVO_I2C_ARG_0
+# define SDVO_DTD_CLOCK_HIGH				SDVO_I2C_ARG_1
+# define SDVO_DTD_H_ACTIVE				SDVO_I2C_ARG_2
+# define SDVO_DTD_H_BLANK				SDVO_I2C_ARG_3
+# define SDVO_DTD_H_HIGH				SDVO_I2C_ARG_4
+# define SDVO_DTD_V_ACTIVE				SDVO_I2C_ARG_5
+# define SDVO_DTD_V_BLANK				SDVO_I2C_ARG_6
+# define SDVO_DTD_V_HIGH				SDVO_I2C_ARG_7
+/* Part 2 */
+# define SDVO_DTD_HSYNC_OFF				SDVO_I2C_ARG_0
+# define SDVO_DTD_HSYNC_WIDTH				SDVO_I2C_ARG_1
+# define SDVO_DTD_VSYNC_OFF_WIDTH			SDVO_I2C_ARG_2
+# define SDVO_DTD_SYNC_OFF_WIDTH_HIGH			SDVO_I2C_ARG_3
+# define SDVO_DTD_DTD_FLAGS				SDVO_I2C_ARG_4
+# define SDVO_DTD_DTD_FLAG_INTERLACED				(1 << 7)
+# define SDVO_DTD_DTD_FLAG_STEREO_MASK				(3 << 5)
+# define SDVO_DTD_DTD_FLAG_INPUT_MASK				(3 << 3)
+# define SDVO_DTD_DTD_FLAG_SYNC_MASK				(3 << 1)
+# define SDVO_DTD_SDVO_FLAS				SDVO_I2C_ARG_5
+# define SDVO_DTD_SDVO_FLAG_STALL				(1 << 7)
+# define SDVO_DTD_SDVO_FLAG_CENTERED				(0 << 6)
+# define SDVO_DTD_SDVO_FLAG_UPPER_LEFT				(1 << 6)
+# define SDVO_DTD_SDVO_FLAG_SCALING_MASK			(3 << 4)
+# define SDVO_DTD_SDVO_FLAG_SCALING_NONE			(0 << 4)
+# define SDVO_DTD_SDVO_FLAG_SCALING_SHARP			(1 << 4)
+# define SDVO_DTD_SDVO_FLAG_SCALING_SMOOTH			(2 << 4)
+# define SDVO_DTD_VSYNC_OFF_HIGH			SDVO_I2C_ARG_6
+
+/**
+ * Generates a DTD based on the given width, height, and flags.
+ *
+ * This will be supported by any device supporting scaling or interlaced
+ * modes.
+ */
+#define SDVO_CMD_CREATE_PREFERRED_INPUT_TIMING		0x1a
+# define SDVO_PREFERRED_INPUT_TIMING_CLOCK_LOW		SDVO_I2C_ARG_0
+# define SDVO_PREFERRED_INPUT_TIMING_CLOCK_HIGH		SDVO_I2C_ARG_1
+# define SDVO_PREFERRED_INPUT_TIMING_WIDTH_LOW		SDVO_I2C_ARG_2
+# define SDVO_PREFERRED_INPUT_TIMING_WIDTH_HIGH		SDVO_I2C_ARG_3
+# define SDVO_PREFERRED_INPUT_TIMING_HEIGHT_LOW		SDVO_I2C_ARG_4
+# define SDVO_PREFERRED_INPUT_TIMING_HEIGHT_HIGH	SDVO_I2C_ARG_5
+# define SDVO_PREFERRED_INPUT_TIMING_FLAGS		SDVO_I2C_ARG_6
+# define SDVO_PREFERRED_INPUT_TIMING_FLAGS_INTERLACED		(1 << 0)
+# define SDVO_PREFERRED_INPUT_TIMING_FLAGS_SCALED		(1 << 1)
+
+#define SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART1	0x1b
+#define SDVO_CMD_GET_PREFERRED_INPUT_TIMING_PART2	0x1c
+
+/** Returns a struct intel_sdvo_pixel_clock_range */
+#define SDVO_CMD_GET_INPUT_PIXEL_CLOCK_RANGE		0x1d
+/** Returns a struct intel_sdvo_pixel_clock_range */
+#define SDVO_CMD_GET_OUTPUT_PIXEL_CLOCK_RANGE		0x1e
+
+/** Returns a byte bitfield containing SDVO_CLOCK_RATE_MULT_* flags */
+#define SDVO_CMD_GET_SUPPORTED_CLOCK_RATE_MULTS		0x1f
+
+/** Returns a byte containing a SDVO_CLOCK_RATE_MULT_* flag */
+#define SDVO_CMD_GET_CLOCK_RATE_MULT			0x20
+/** Takes a byte containing a SDVO_CLOCK_RATE_MULT_* flag */
+#define SDVO_CMD_SET_CLOCK_RATE_MULT			0x21
+# define SDVO_CLOCK_RATE_MULT_1X				(1 << 0)
+# define SDVO_CLOCK_RATE_MULT_2X				(1 << 1)
+# define SDVO_CLOCK_RATE_MULT_4X				(1 << 3)
+
+#define SDVO_CMD_GET_SUPPORTED_TV_FORMATS		0x27
+/** 6 bytes of bit flags for TV formats shared by all TV format functions */
+struct psb_intel_sdvo_tv_format {
+    unsigned int ntsc_m:1;
+    unsigned int ntsc_j:1;
+    unsigned int ntsc_443:1;
+    unsigned int pal_b:1;
+    unsigned int pal_d:1;
+    unsigned int pal_g:1;
+    unsigned int pal_h:1;
+    unsigned int pal_i:1;
+
+    unsigned int pal_m:1;
+    unsigned int pal_n:1;
+    unsigned int pal_nc:1;
+    unsigned int pal_60:1;
+    unsigned int secam_b:1;
+    unsigned int secam_d:1;
+    unsigned int secam_g:1;
+    unsigned int secam_k:1;
+
+    unsigned int secam_k1:1;
+    unsigned int secam_l:1;
+    unsigned int secam_60:1;
+    unsigned int hdtv_std_smpte_240m_1080i_59:1;
+    unsigned int hdtv_std_smpte_240m_1080i_60:1;
+    unsigned int hdtv_std_smpte_260m_1080i_59:1;
+    unsigned int hdtv_std_smpte_260m_1080i_60:1;
+    unsigned int hdtv_std_smpte_274m_1080i_50:1;
+
+    unsigned int hdtv_std_smpte_274m_1080i_59:1;
+    unsigned int hdtv_std_smpte_274m_1080i_60:1;
+    unsigned int hdtv_std_smpte_274m_1080p_23:1;
+    unsigned int hdtv_std_smpte_274m_1080p_24:1;
+    unsigned int hdtv_std_smpte_274m_1080p_25:1;
+    unsigned int hdtv_std_smpte_274m_1080p_29:1;
+    unsigned int hdtv_std_smpte_274m_1080p_30:1;
+    unsigned int hdtv_std_smpte_274m_1080p_50:1;
+
+    unsigned int hdtv_std_smpte_274m_1080p_59:1;
+    unsigned int hdtv_std_smpte_274m_1080p_60:1;
+    unsigned int hdtv_std_smpte_295m_1080i_50:1;
+    unsigned int hdtv_std_smpte_295m_1080p_50:1;
+    unsigned int hdtv_std_smpte_296m_720p_59:1;
+    unsigned int hdtv_std_smpte_296m_720p_60:1;
+    unsigned int hdtv_std_smpte_296m_720p_50:1;
+    unsigned int hdtv_std_smpte_293m_480p_59:1;
+
+    unsigned int hdtv_std_smpte_170m_480i_59:1;
+    unsigned int hdtv_std_iturbt601_576i_50:1;
+    unsigned int hdtv_std_iturbt601_576p_50:1;
+    unsigned int hdtv_std_eia_7702a_480i_60:1;
+    unsigned int hdtv_std_eia_7702a_480p_60:1;
+    unsigned int pad:3;
+} __attribute__((packed));
+
+#define SDVO_CMD_GET_TV_FORMAT				0x28
+
+#define SDVO_CMD_SET_TV_FORMAT				0x29
+
+/** Returns the resolutiosn that can be used with the given TV format */
+#define SDVO_CMD_GET_SDTV_RESOLUTION_SUPPORT		0x83
+struct psb_intel_sdvo_sdtv_resolution_request {
+    unsigned int ntsc_m:1;
+    unsigned int ntsc_j:1;
+    unsigned int ntsc_443:1;
+    unsigned int pal_b:1;
+    unsigned int pal_d:1;
+    unsigned int pal_g:1;
+    unsigned int pal_h:1;
+    unsigned int pal_i:1;
+
+    unsigned int pal_m:1;
+    unsigned int pal_n:1;
+    unsigned int pal_nc:1;
+    unsigned int pal_60:1;
+    unsigned int secam_b:1;
+    unsigned int secam_d:1;
+    unsigned int secam_g:1;
+    unsigned int secam_k:1;
+
+    unsigned int secam_k1:1;
+    unsigned int secam_l:1;
+    unsigned int secam_60:1;
+    unsigned int pad:5;
+} __attribute__((packed));
+
+struct psb_intel_sdvo_sdtv_resolution_reply {
+    unsigned int res_320x200:1;
+    unsigned int res_320x240:1;
+    unsigned int res_400x300:1;
+    unsigned int res_640x350:1;
+    unsigned int res_640x400:1;
+    unsigned int res_640x480:1;
+    unsigned int res_704x480:1;
+    unsigned int res_704x576:1;
+
+    unsigned int res_720x350:1;
+    unsigned int res_720x400:1;
+    unsigned int res_720x480:1;
+    unsigned int res_720x540:1;
+    unsigned int res_720x576:1;
+    unsigned int res_768x576:1;
+    unsigned int res_800x600:1;
+    unsigned int res_832x624:1;
+
+    unsigned int res_920x766:1;
+    unsigned int res_1024x768:1;
+    unsigned int res_1280x1024:1;
+    unsigned int pad:5;
+} __attribute__((packed));
+
+/* Get supported resolution with squire pixel aspect ratio that can be
+   scaled for the requested HDTV format */
+#define SDVO_CMD_GET_SCALED_HDTV_RESOLUTION_SUPPORT		0x85
+
+struct psb_intel_sdvo_hdtv_resolution_request {
+    unsigned int hdtv_std_smpte_240m_1080i_59:1;
+    unsigned int hdtv_std_smpte_240m_1080i_60:1;
+    unsigned int hdtv_std_smpte_260m_1080i_59:1;
+    unsigned int hdtv_std_smpte_260m_1080i_60:1;
+    unsigned int hdtv_std_smpte_274m_1080i_50:1;
+    unsigned int hdtv_std_smpte_274m_1080i_59:1;
+    unsigned int hdtv_std_smpte_274m_1080i_60:1;
+    unsigned int hdtv_std_smpte_274m_1080p_23:1;
+
+    unsigned int hdtv_std_smpte_274m_1080p_24:1;
+    unsigned int hdtv_std_smpte_274m_1080p_25:1;
+    unsigned int hdtv_std_smpte_274m_1080p_29:1;
+    unsigned int hdtv_std_smpte_274m_1080p_30:1;
+    unsigned int hdtv_std_smpte_274m_1080p_50:1;
+    unsigned int hdtv_std_smpte_274m_1080p_59:1;
+    unsigned int hdtv_std_smpte_274m_1080p_60:1;
+    unsigned int hdtv_std_smpte_295m_1080i_50:1;
+
+    unsigned int hdtv_std_smpte_295m_1080p_50:1;
+    unsigned int hdtv_std_smpte_296m_720p_59:1;
+    unsigned int hdtv_std_smpte_296m_720p_60:1;
+    unsigned int hdtv_std_smpte_296m_720p_50:1;
+    unsigned int hdtv_std_smpte_293m_480p_59:1;
+    unsigned int hdtv_std_smpte_170m_480i_59:1;
+    unsigned int hdtv_std_iturbt601_576i_50:1;
+    unsigned int hdtv_std_iturbt601_576p_50:1;
+
+    unsigned int hdtv_std_eia_7702a_480i_60:1;
+    unsigned int hdtv_std_eia_7702a_480p_60:1;
+    unsigned int pad:6;
+} __attribute__((packed));
+
+struct psb_intel_sdvo_hdtv_resolution_reply {
+    unsigned int res_640x480:1;
+    unsigned int res_800x600:1;
+    unsigned int res_1024x768:1;
+    unsigned int res_1280x960:1;
+    unsigned int res_1400x1050:1;
+    unsigned int res_1600x1200:1;
+    unsigned int res_1920x1440:1;
+    unsigned int res_2048x1536:1;
+
+    unsigned int res_2560x1920:1;
+    unsigned int res_3200x2400:1;
+    unsigned int res_3840x2880:1;
+    unsigned int pad1:5;
+
+    unsigned int res_848x480:1;
+    unsigned int res_1064x600:1;
+    unsigned int res_1280x720:1;
+    unsigned int res_1360x768:1;
+    unsigned int res_1704x960:1;
+    unsigned int res_1864x1050:1;
+    unsigned int res_1920x1080:1;
+    unsigned int res_2128x1200:1;
+
+    unsigned int res_2560x1400:1;
+    unsigned int res_2728x1536:1;
+    unsigned int res_3408x1920:1;
+    unsigned int res_4264x2400:1;
+    unsigned int res_5120x2880:1;
+    unsigned int pad2:3;
+
+    unsigned int res_768x480:1;
+    unsigned int res_960x600:1;
+    unsigned int res_1152x720:1;
+    unsigned int res_1124x768:1;
+    unsigned int res_1536x960:1;
+    unsigned int res_1680x1050:1;
+    unsigned int res_1728x1080:1;
+    unsigned int res_1920x1200:1;
+
+    unsigned int res_2304x1440:1;
+    unsigned int res_2456x1536:1;
+    unsigned int res_3072x1920:1;
+    unsigned int res_3840x2400:1;
+    unsigned int res_4608x2880:1;
+    unsigned int pad3:3;
+
+    unsigned int res_1280x1024:1;
+    unsigned int pad4:7;
+
+    unsigned int res_1280x768:1;
+    unsigned int pad5:7;
+} __attribute__((packed));
+
+/* Get supported power state returns info for encoder and monitor, rely on
+   last SetTargetInput and SetTargetOutput calls */
+#define SDVO_CMD_GET_SUPPORTED_POWER_STATES		0x2a
+/* Get power state returns info for encoder and monitor, rely on last
+   SetTargetInput and SetTargetOutput calls */
+#define SDVO_CMD_GET_POWER_STATE			0x2b
+#define SDVO_CMD_GET_ENCODER_POWER_STATE		0x2b
+#define SDVO_CMD_SET_ENCODER_POWER_STATE		0x2c
+# define SDVO_ENCODER_STATE_ON					(1 << 0)
+# define SDVO_ENCODER_STATE_STANDBY				(1 << 1)
+# define SDVO_ENCODER_STATE_SUSPEND				(1 << 2)
+# define SDVO_ENCODER_STATE_OFF					(1 << 3)
+# define SDVO_MONITOR_STATE_ON					(1 << 4)
+# define SDVO_MONITOR_STATE_STANDBY				(1 << 5)
+# define SDVO_MONITOR_STATE_SUSPEND				(1 << 6)
+# define SDVO_MONITOR_STATE_OFF					(1 << 7)
+
+#define SDVO_CMD_GET_MAX_PANEL_POWER_SEQUENCING		0x2d
+#define SDVO_CMD_GET_PANEL_POWER_SEQUENCING		0x2e
+#define SDVO_CMD_SET_PANEL_POWER_SEQUENCING		0x2f
+/**
+ * The panel power sequencing parameters are in units of milliseconds.
+ * The high fields are bits 8:9 of the 10-bit values.
+ */
+struct psb_sdvo_panel_power_sequencing {
+    u8 t0;
+    u8 t1;
+    u8 t2;
+    u8 t3;
+    u8 t4;
+
+    unsigned int t0_high:2;
+    unsigned int t1_high:2;
+    unsigned int t2_high:2;
+    unsigned int t3_high:2;
+
+    unsigned int t4_high:2;
+    unsigned int pad:6;
+} __attribute__((packed));
+
+#define SDVO_CMD_GET_MAX_BACKLIGHT_LEVEL		0x30
+struct sdvo_max_backlight_reply {
+    u8 max_value;
+    u8 default_value;
+} __attribute__((packed));
+
+#define SDVO_CMD_GET_BACKLIGHT_LEVEL			0x31
+#define SDVO_CMD_SET_BACKLIGHT_LEVEL			0x32
+
+#define SDVO_CMD_GET_AMBIENT_LIGHT			0x33
+struct sdvo_get_ambient_light_reply {
+    u16 trip_low;
+    u16 trip_high;
+    u16 value;
+} __attribute__((packed));
+#define SDVO_CMD_SET_AMBIENT_LIGHT			0x34
+struct sdvo_set_ambient_light_reply {
+    u16 trip_low;
+    u16 trip_high;
+    unsigned int enable:1;
+    unsigned int pad:7;
+} __attribute__((packed));
+
+/* Set display power state */
+#define SDVO_CMD_SET_DISPLAY_POWER_STATE		0x7d
+# define SDVO_DISPLAY_STATE_ON				(1 << 0)
+# define SDVO_DISPLAY_STATE_STANDBY			(1 << 1)
+# define SDVO_DISPLAY_STATE_SUSPEND			(1 << 2)
+# define SDVO_DISPLAY_STATE_OFF				(1 << 3)
+
+#define SDVO_CMD_GET_SUPPORTED_ENHANCEMENTS		0x84
+struct psb_intel_sdvo_enhancements_reply {
+    unsigned int flicker_filter:1;
+    unsigned int flicker_filter_adaptive:1;
+    unsigned int flicker_filter_2d:1;
+    unsigned int saturation:1;
+    unsigned int hue:1;
+    unsigned int brightness:1;
+    unsigned int contrast:1;
+    unsigned int overscan_h:1;
+
+    unsigned int overscan_v:1;
+    unsigned int hpos:1;
+    unsigned int vpos:1;
+    unsigned int sharpness:1;
+    unsigned int dot_crawl:1;
+    unsigned int dither:1;
+    unsigned int tv_chroma_filter:1;
+    unsigned int tv_luma_filter:1;
+} __attribute__((packed));
+
+/* Picture enhancement limits below are dependent on the current TV format,
+ * and thus need to be queried and set after it.
+ */
+#define SDVO_CMD_GET_MAX_FLICKER_FILTER			0x4d
+#define SDVO_CMD_GET_MAX_FLICKER_FILTER_ADAPTIVE	0x7b
+#define SDVO_CMD_GET_MAX_FLICKER_FILTER_2D		0x52
+#define SDVO_CMD_GET_MAX_SATURATION			0x55
+#define SDVO_CMD_GET_MAX_HUE				0x58
+#define SDVO_CMD_GET_MAX_BRIGHTNESS			0x5b
+#define SDVO_CMD_GET_MAX_CONTRAST			0x5e
+#define SDVO_CMD_GET_MAX_OVERSCAN_H			0x61
+#define SDVO_CMD_GET_MAX_OVERSCAN_V			0x64
+#define SDVO_CMD_GET_MAX_HPOS				0x67
+#define SDVO_CMD_GET_MAX_VPOS				0x6a
+#define SDVO_CMD_GET_MAX_SHARPNESS			0x6d
+#define SDVO_CMD_GET_MAX_TV_CHROMA_FILTER		0x74
+#define SDVO_CMD_GET_MAX_TV_LUMA_FILTER			0x77
+struct psb_intel_sdvo_enhancement_limits_reply {
+    u16 max_value;
+    u16 default_value;
+} __attribute__((packed));
+
+#define SDVO_CMD_GET_LVDS_PANEL_INFORMATION		0x7f
+#define SDVO_CMD_SET_LVDS_PANEL_INFORMATION		0x80
+# define SDVO_LVDS_COLOR_DEPTH_18			(0 << 0)
+# define SDVO_LVDS_COLOR_DEPTH_24			(1 << 0)
+# define SDVO_LVDS_CONNECTOR_SPWG			(0 << 2)
+# define SDVO_LVDS_CONNECTOR_OPENLDI			(1 << 2)
+# define SDVO_LVDS_SINGLE_CHANNEL			(0 << 4)
+# define SDVO_LVDS_DUAL_CHANNEL				(1 << 4)
+
+#define SDVO_CMD_GET_FLICKER_FILTER			0x4e
+#define SDVO_CMD_SET_FLICKER_FILTER			0x4f
+#define SDVO_CMD_GET_FLICKER_FILTER_ADAPTIVE		0x50
+#define SDVO_CMD_SET_FLICKER_FILTER_ADAPTIVE		0x51
+#define SDVO_CMD_GET_FLICKER_FILTER_2D			0x53
+#define SDVO_CMD_SET_FLICKER_FILTER_2D			0x54
+#define SDVO_CMD_GET_SATURATION				0x56
+#define SDVO_CMD_SET_SATURATION				0x57
+#define SDVO_CMD_GET_HUE				0x59
+#define SDVO_CMD_SET_HUE				0x5a
+#define SDVO_CMD_GET_BRIGHTNESS				0x5c
+#define SDVO_CMD_SET_BRIGHTNESS				0x5d
+#define SDVO_CMD_GET_CONTRAST				0x5f
+#define SDVO_CMD_SET_CONTRAST				0x60
+#define SDVO_CMD_GET_OVERSCAN_H				0x62
+#define SDVO_CMD_SET_OVERSCAN_H				0x63
+#define SDVO_CMD_GET_OVERSCAN_V				0x65
+#define SDVO_CMD_SET_OVERSCAN_V				0x66
+#define SDVO_CMD_GET_HPOS				0x68
+#define SDVO_CMD_SET_HPOS				0x69
+#define SDVO_CMD_GET_VPOS				0x6b
+#define SDVO_CMD_SET_VPOS				0x6c
+#define SDVO_CMD_GET_SHARPNESS				0x6e
+#define SDVO_CMD_SET_SHARPNESS				0x6f
+#define SDVO_CMD_GET_TV_CHROMA_FILTER			0x75
+#define SDVO_CMD_SET_TV_CHROMA_FILTER			0x76
+#define SDVO_CMD_GET_TV_LUMA_FILTER			0x78
+#define SDVO_CMD_SET_TV_LUMA_FILTER			0x79
+struct psb_intel_sdvo_enhancements_arg {
+    u16 value;
+}__attribute__((packed));
+
+#define SDVO_CMD_GET_DOT_CRAWL				0x70
+#define SDVO_CMD_SET_DOT_CRAWL				0x71
+# define SDVO_DOT_CRAWL_ON					(1 << 0)
+# define SDVO_DOT_CRAWL_DEFAULT_ON				(1 << 1)
+
+#define SDVO_CMD_GET_DITHER				0x72
+#define SDVO_CMD_SET_DITHER				0x73
+# define SDVO_DITHER_ON						(1 << 0)
+# define SDVO_DITHER_DEFAULT_ON					(1 << 1)
+
+#define SDVO_CMD_SET_CONTROL_BUS_SWITCH			0x7a
+# define SDVO_CONTROL_BUS_PROM				(1 << 0)
+# define SDVO_CONTROL_BUS_DDC1				(1 << 1)
+# define SDVO_CONTROL_BUS_DDC2				(1 << 2)
+# define SDVO_CONTROL_BUS_DDC3				(1 << 3)
+
+/* HDMI op codes */
+#define SDVO_CMD_GET_SUPP_ENCODE	0x9d
+#define SDVO_CMD_GET_ENCODE		0x9e
+#define SDVO_CMD_SET_ENCODE		0x9f
+  #define SDVO_ENCODE_DVI	0x0
+  #define SDVO_ENCODE_HDMI	0x1
+#define SDVO_CMD_SET_PIXEL_REPLI	0x8b
+#define SDVO_CMD_GET_PIXEL_REPLI	0x8c
+#define SDVO_CMD_GET_COLORIMETRY_CAP	0x8d
+#define SDVO_CMD_SET_COLORIMETRY	0x8e
+  #define SDVO_COLORIMETRY_RGB256   0x0
+  #define SDVO_COLORIMETRY_RGB220   0x1
+  #define SDVO_COLORIMETRY_YCrCb422 0x3
+  #define SDVO_COLORIMETRY_YCrCb444 0x4
+#define SDVO_CMD_GET_COLORIMETRY	0x8f
+#define SDVO_CMD_GET_AUDIO_ENCRYPT_PREFER 0x90
+#define SDVO_CMD_SET_AUDIO_STAT		0x91
+#define SDVO_CMD_GET_AUDIO_STAT		0x92
+#define SDVO_CMD_SET_HBUF_INDEX		0x93
+#define SDVO_CMD_GET_HBUF_INDEX		0x94
+#define SDVO_CMD_GET_HBUF_INFO		0x95
+#define SDVO_CMD_SET_HBUF_AV_SPLIT	0x96
+#define SDVO_CMD_GET_HBUF_AV_SPLIT	0x97
+#define SDVO_CMD_SET_HBUF_DATA		0x98
+#define SDVO_CMD_GET_HBUF_DATA		0x99
+#define SDVO_CMD_SET_HBUF_TXRATE	0x9a
+#define SDVO_CMD_GET_HBUF_TXRATE	0x9b
+  #define SDVO_HBUF_TX_DISABLED	(0 << 6)
+  #define SDVO_HBUF_TX_ONCE	(2 << 6)
+  #define SDVO_HBUF_TX_VSYNC	(3 << 6)
+#define SDVO_CMD_GET_AUDIO_TX_INFO	0x9c
+#define SDVO_NEED_TO_STALL  (1 << 7)
+
+struct psb_intel_sdvo_encode {
+    u8 dvi_rev;
+    u8 hdmi_rev;
+} __attribute__ ((packed));
diff --git a/drivers/gpu/drm/gma500/psb_irq.c b/drivers/gpu/drm/gma500/psb_irq.c
new file mode 100644
index 000000000000..7be802baceb5
--- /dev/null
+++ b/drivers/gpu/drm/gma500/psb_irq.c
@@ -0,0 +1,564 @@
+/**************************************************************************
+ * Copyright (c) 2007, Intel Corporation.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Intel funded Tungsten Graphics (http://www.tungstengraphics.com) to
+ * develop this driver.
+ *
+ **************************************************************************/
+/*
+ */
+
+#include <drm/drmP.h>
+#include "psb_drv.h"
+#include "psb_reg.h"
+#include "psb_intel_reg.h"
+#include "power.h"
+
+/*
+ * inline functions
+ */
+
+static inline u32
+psb_pipestat(int pipe)
+{
+	if (pipe == 0)
+		return PIPEASTAT;
+	if (pipe == 1)
+		return PIPEBSTAT;
+	if (pipe == 2)
+		return PIPECSTAT;
+	BUG();
+}
+
+static inline u32
+mid_pipe_event(int pipe)
+{
+	if (pipe == 0)
+		return _PSB_PIPEA_EVENT_FLAG;
+	if (pipe == 1)
+		return _MDFLD_PIPEB_EVENT_FLAG;
+	if (pipe == 2)
+		return _MDFLD_PIPEC_EVENT_FLAG;
+	BUG();
+}
+
+static inline u32
+mid_pipe_vsync(int pipe)
+{
+	if (pipe == 0)
+		return _PSB_VSYNC_PIPEA_FLAG;
+	if (pipe == 1)
+		return _PSB_VSYNC_PIPEB_FLAG;
+	if (pipe == 2)
+		return _MDFLD_PIPEC_VBLANK_FLAG;
+	BUG();
+}
+
+static inline u32
+mid_pipeconf(int pipe)
+{
+	if (pipe == 0)
+		return PIPEACONF;
+	if (pipe == 1)
+		return PIPEBCONF;
+	if (pipe == 2)
+		return PIPECCONF;
+	BUG();
+}
+
+void
+psb_enable_pipestat(struct drm_psb_private *dev_priv, int pipe, u32 mask)
+{
+	if ((dev_priv->pipestat[pipe] & mask) != mask) {
+		u32 reg = psb_pipestat(pipe);
+		dev_priv->pipestat[pipe] |= mask;
+		/* Enable the interrupt, clear any pending status */
+		if (gma_power_begin(dev_priv->dev, false)) {
+			u32 writeVal = PSB_RVDC32(reg);
+			writeVal |= (mask | (mask >> 16));
+			PSB_WVDC32(writeVal, reg);
+			(void) PSB_RVDC32(reg);
+			gma_power_end(dev_priv->dev);
+		}
+	}
+}
+
+void
+psb_disable_pipestat(struct drm_psb_private *dev_priv, int pipe, u32 mask)
+{
+	if ((dev_priv->pipestat[pipe] & mask) != 0) {
+		u32 reg = psb_pipestat(pipe);
+		dev_priv->pipestat[pipe] &= ~mask;
+		if (gma_power_begin(dev_priv->dev, false)) {
+			u32 writeVal = PSB_RVDC32(reg);
+			writeVal &= ~mask;
+			PSB_WVDC32(writeVal, reg);
+			(void) PSB_RVDC32(reg);
+			gma_power_end(dev_priv->dev);
+		}
+	}
+}
+
+void mid_enable_pipe_event(struct drm_psb_private *dev_priv, int pipe)
+{
+	if (gma_power_begin(dev_priv->dev, false)) {
+		u32 pipe_event = mid_pipe_event(pipe);
+		dev_priv->vdc_irq_mask |= pipe_event;
+		PSB_WVDC32(~dev_priv->vdc_irq_mask, PSB_INT_MASK_R);
+		PSB_WVDC32(dev_priv->vdc_irq_mask, PSB_INT_ENABLE_R);
+		gma_power_end(dev_priv->dev);
+	}
+}
+
+void mid_disable_pipe_event(struct drm_psb_private *dev_priv, int pipe)
+{
+	if (dev_priv->pipestat[pipe] == 0) {
+		if (gma_power_begin(dev_priv->dev, false)) {
+			u32 pipe_event = mid_pipe_event(pipe);
+			dev_priv->vdc_irq_mask &= ~pipe_event;
+			PSB_WVDC32(~dev_priv->vdc_irq_mask, PSB_INT_MASK_R);
+			PSB_WVDC32(dev_priv->vdc_irq_mask, PSB_INT_ENABLE_R);
+			gma_power_end(dev_priv->dev);
+		}
+	}
+}
+
+/**
+ * Display controller interrupt handler for pipe event.
+ *
+ */
+static void mid_pipe_event_handler(struct drm_device *dev, int pipe)
+{
+	struct drm_psb_private *dev_priv =
+	    (struct drm_psb_private *) dev->dev_private;
+
+	uint32_t pipe_stat_val = 0;
+	uint32_t pipe_stat_reg = psb_pipestat(pipe);
+	uint32_t pipe_enable = dev_priv->pipestat[pipe];
+	uint32_t pipe_status = dev_priv->pipestat[pipe] >> 16;
+	uint32_t pipe_clear;
+	uint32_t i = 0;
+
+	spin_lock(&dev_priv->irqmask_lock);
+
+	pipe_stat_val = PSB_RVDC32(pipe_stat_reg);
+	pipe_stat_val &= pipe_enable | pipe_status;
+	pipe_stat_val &= pipe_stat_val >> 16;
+
+	spin_unlock(&dev_priv->irqmask_lock);
+
+	/* Clear the 2nd level interrupt status bits
+	 * Sometimes the bits are very sticky so we repeat until they unstick */
+	for (i = 0; i < 0xffff; i++) {
+		PSB_WVDC32(PSB_RVDC32(pipe_stat_reg), pipe_stat_reg);
+		pipe_clear = PSB_RVDC32(pipe_stat_reg) & pipe_status;
+
+		if (pipe_clear == 0)
+			break;
+	}
+
+	if (pipe_clear)
+		dev_err(dev->dev,
+		"%s, can't clear status bits for pipe %d, its value = 0x%x.\n",
+		__func__, pipe, PSB_RVDC32(pipe_stat_reg));
+
+	if (pipe_stat_val & PIPE_VBLANK_STATUS)
+		drm_handle_vblank(dev, pipe);
+
+	if (pipe_stat_val & PIPE_TE_STATUS)
+		drm_handle_vblank(dev, pipe);
+}
+
+/*
+ * Display controller interrupt handler.
+ */
+static void psb_vdc_interrupt(struct drm_device *dev, uint32_t vdc_stat)
+{
+	if (vdc_stat & _PSB_VSYNC_PIPEA_FLAG)
+		mid_pipe_event_handler(dev, 0);
+
+	if (vdc_stat & _PSB_VSYNC_PIPEB_FLAG)
+		mid_pipe_event_handler(dev, 1);
+}
+
+irqreturn_t psb_irq_handler(DRM_IRQ_ARGS)
+{
+	struct drm_device *dev = (struct drm_device *) arg;
+	struct drm_psb_private *dev_priv =
+	    (struct drm_psb_private *) dev->dev_private;
+
+	uint32_t vdc_stat, dsp_int = 0, sgx_int = 0;
+	int handled = 0;
+
+	spin_lock(&dev_priv->irqmask_lock);
+
+	vdc_stat = PSB_RVDC32(PSB_INT_IDENTITY_R);
+
+	if (vdc_stat & _PSB_PIPE_EVENT_FLAG)
+		dsp_int = 1;
+
+	/* FIXME: Handle Medfield
+	if (vdc_stat & _MDFLD_DISP_ALL_IRQ_FLAG)
+		dsp_int = 1;
+	*/
+
+	if (vdc_stat & _PSB_IRQ_SGX_FLAG)
+		sgx_int = 1;
+
+	vdc_stat &= dev_priv->vdc_irq_mask;
+	spin_unlock(&dev_priv->irqmask_lock);
+
+	if (dsp_int && gma_power_is_on(dev)) {
+		psb_vdc_interrupt(dev, vdc_stat);
+		handled = 1;
+	}
+
+	if (sgx_int) {
+		/* Not expected - we have it masked, shut it up */
+		u32 s, s2;
+		s = PSB_RSGX32(PSB_CR_EVENT_STATUS);
+		s2 = PSB_RSGX32(PSB_CR_EVENT_STATUS2);
+		PSB_WSGX32(s, PSB_CR_EVENT_HOST_CLEAR);
+		PSB_WSGX32(s2, PSB_CR_EVENT_HOST_CLEAR2);
+		/* if s & _PSB_CE_TWOD_COMPLETE we have 2D done but
+		   we may as well poll even if we add that ! */
+		handled = 1;
+	}
+
+	PSB_WVDC32(vdc_stat, PSB_INT_IDENTITY_R);
+	(void) PSB_RVDC32(PSB_INT_IDENTITY_R);
+	DRM_READMEMORYBARRIER();
+
+	if (!handled)
+		return IRQ_NONE;
+
+	return IRQ_HANDLED;
+}
+
+void psb_irq_preinstall(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv =
+	    (struct drm_psb_private *) dev->dev_private;
+	unsigned long irqflags;
+
+	spin_lock_irqsave(&dev_priv->irqmask_lock, irqflags);
+
+	if (gma_power_is_on(dev))
+		PSB_WVDC32(0xFFFFFFFF, PSB_HWSTAM);
+	if (dev->vblank_enabled[0])
+		dev_priv->vdc_irq_mask |= _PSB_VSYNC_PIPEA_FLAG;
+	if (dev->vblank_enabled[1])
+		dev_priv->vdc_irq_mask |= _PSB_VSYNC_PIPEB_FLAG;
+
+	/* FIXME: Handle Medfield irq mask
+	if (dev->vblank_enabled[1])
+		dev_priv->vdc_irq_mask |= _MDFLD_PIPEB_EVENT_FLAG;
+	if (dev->vblank_enabled[2])
+		dev_priv->vdc_irq_mask |= _MDFLD_PIPEC_EVENT_FLAG;
+	*/
+
+	/* This register is safe even if display island is off */
+	PSB_WVDC32(~dev_priv->vdc_irq_mask, PSB_INT_MASK_R);
+	spin_unlock_irqrestore(&dev_priv->irqmask_lock, irqflags);
+}
+
+int psb_irq_postinstall(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv =
+	    (struct drm_psb_private *) dev->dev_private;
+	unsigned long irqflags;
+
+	spin_lock_irqsave(&dev_priv->irqmask_lock, irqflags);
+
+	/* This register is safe even if display island is off */
+	PSB_WVDC32(dev_priv->vdc_irq_mask, PSB_INT_ENABLE_R);
+	PSB_WVDC32(0xFFFFFFFF, PSB_HWSTAM);
+
+	if (dev->vblank_enabled[0])
+		psb_enable_pipestat(dev_priv, 0, PIPE_VBLANK_INTERRUPT_ENABLE);
+	else
+		psb_disable_pipestat(dev_priv, 0, PIPE_VBLANK_INTERRUPT_ENABLE);
+
+	if (dev->vblank_enabled[1])
+		psb_enable_pipestat(dev_priv, 1, PIPE_VBLANK_INTERRUPT_ENABLE);
+	else
+		psb_disable_pipestat(dev_priv, 1, PIPE_VBLANK_INTERRUPT_ENABLE);
+
+	if (dev->vblank_enabled[2])
+		psb_enable_pipestat(dev_priv, 2, PIPE_VBLANK_INTERRUPT_ENABLE);
+	else
+		psb_disable_pipestat(dev_priv, 2, PIPE_VBLANK_INTERRUPT_ENABLE);
+
+	spin_unlock_irqrestore(&dev_priv->irqmask_lock, irqflags);
+	return 0;
+}
+
+void psb_irq_uninstall(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv =
+	    (struct drm_psb_private *) dev->dev_private;
+	unsigned long irqflags;
+
+	spin_lock_irqsave(&dev_priv->irqmask_lock, irqflags);
+
+	PSB_WVDC32(0xFFFFFFFF, PSB_HWSTAM);
+
+	if (dev->vblank_enabled[0])
+		psb_disable_pipestat(dev_priv, 0, PIPE_VBLANK_INTERRUPT_ENABLE);
+
+	if (dev->vblank_enabled[1])
+		psb_disable_pipestat(dev_priv, 1, PIPE_VBLANK_INTERRUPT_ENABLE);
+
+	if (dev->vblank_enabled[2])
+		psb_disable_pipestat(dev_priv, 2, PIPE_VBLANK_INTERRUPT_ENABLE);
+
+	dev_priv->vdc_irq_mask &= _PSB_IRQ_SGX_FLAG |
+				  _PSB_IRQ_MSVDX_FLAG |
+				  _LNC_IRQ_TOPAZ_FLAG;
+
+	/* These two registers are safe even if display island is off */
+	PSB_WVDC32(~dev_priv->vdc_irq_mask, PSB_INT_MASK_R);
+	PSB_WVDC32(dev_priv->vdc_irq_mask, PSB_INT_ENABLE_R);
+
+	wmb();
+
+	/* This register is safe even if display island is off */
+	PSB_WVDC32(PSB_RVDC32(PSB_INT_IDENTITY_R), PSB_INT_IDENTITY_R);
+	spin_unlock_irqrestore(&dev_priv->irqmask_lock, irqflags);
+}
+
+void psb_irq_turn_on_dpst(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv =
+		(struct drm_psb_private *) dev->dev_private;
+	u32 hist_reg;
+	u32 pwm_reg;
+
+	if (gma_power_begin(dev, false)) {
+		PSB_WVDC32(1 << 31, HISTOGRAM_LOGIC_CONTROL);
+		hist_reg = PSB_RVDC32(HISTOGRAM_LOGIC_CONTROL);
+		PSB_WVDC32(1 << 31, HISTOGRAM_INT_CONTROL);
+		hist_reg = PSB_RVDC32(HISTOGRAM_INT_CONTROL);
+
+		PSB_WVDC32(0x80010100, PWM_CONTROL_LOGIC);
+		pwm_reg = PSB_RVDC32(PWM_CONTROL_LOGIC);
+		PSB_WVDC32(pwm_reg | PWM_PHASEIN_ENABLE
+						| PWM_PHASEIN_INT_ENABLE,
+							   PWM_CONTROL_LOGIC);
+		pwm_reg = PSB_RVDC32(PWM_CONTROL_LOGIC);
+
+		psb_enable_pipestat(dev_priv, 0, PIPE_DPST_EVENT_ENABLE);
+
+		hist_reg = PSB_RVDC32(HISTOGRAM_INT_CONTROL);
+		PSB_WVDC32(hist_reg | HISTOGRAM_INT_CTRL_CLEAR,
+							HISTOGRAM_INT_CONTROL);
+		pwm_reg = PSB_RVDC32(PWM_CONTROL_LOGIC);
+		PSB_WVDC32(pwm_reg | 0x80010100 | PWM_PHASEIN_ENABLE,
+							PWM_CONTROL_LOGIC);
+
+		gma_power_end(dev);
+	}
+}
+
+int psb_irq_enable_dpst(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv =
+		(struct drm_psb_private *) dev->dev_private;
+	unsigned long irqflags;
+
+	spin_lock_irqsave(&dev_priv->irqmask_lock, irqflags);
+
+	/* enable DPST */
+	mid_enable_pipe_event(dev_priv, 0);
+	psb_irq_turn_on_dpst(dev);
+
+	spin_unlock_irqrestore(&dev_priv->irqmask_lock, irqflags);
+	return 0;
+}
+
+void psb_irq_turn_off_dpst(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv =
+	    (struct drm_psb_private *) dev->dev_private;
+	u32 hist_reg;
+	u32 pwm_reg;
+
+	if (gma_power_begin(dev, false)) {
+		PSB_WVDC32(0x00000000, HISTOGRAM_INT_CONTROL);
+		hist_reg = PSB_RVDC32(HISTOGRAM_INT_CONTROL);
+
+		psb_disable_pipestat(dev_priv, 0, PIPE_DPST_EVENT_ENABLE);
+
+		pwm_reg = PSB_RVDC32(PWM_CONTROL_LOGIC);
+		PSB_WVDC32(pwm_reg & !(PWM_PHASEIN_INT_ENABLE),
+							PWM_CONTROL_LOGIC);
+		pwm_reg = PSB_RVDC32(PWM_CONTROL_LOGIC);
+
+		gma_power_end(dev);
+	}
+}
+
+int psb_irq_disable_dpst(struct drm_device *dev)
+{
+	struct drm_psb_private *dev_priv =
+	    (struct drm_psb_private *) dev->dev_private;
+	unsigned long irqflags;
+
+	spin_lock_irqsave(&dev_priv->irqmask_lock, irqflags);
+
+	mid_disable_pipe_event(dev_priv, 0);
+	psb_irq_turn_off_dpst(dev);
+
+	spin_unlock_irqrestore(&dev_priv->irqmask_lock, irqflags);
+
+	return 0;
+}
+
+#ifdef PSB_FIXME
+static int psb_vblank_do_wait(struct drm_device *dev,
+			      unsigned int *sequence, atomic_t *counter)
+{
+	unsigned int cur_vblank;
+	int ret = 0;
+	DRM_WAIT_ON(ret, dev->vbl_queue, 3 * DRM_HZ,
+		    (((cur_vblank = atomic_read(counter))
+		      - *sequence) <= (1 << 23)));
+	*sequence = cur_vblank;
+
+	return ret;
+}
+#endif
+
+/*
+ * It is used to enable VBLANK interrupt
+ */
+int psb_enable_vblank(struct drm_device *dev, int pipe)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	unsigned long irqflags;
+	uint32_t reg_val = 0;
+	uint32_t pipeconf_reg = mid_pipeconf(pipe);
+
+	if (gma_power_begin(dev, false)) {
+		reg_val = REG_READ(pipeconf_reg);
+		gma_power_end(dev);
+	}
+
+	if (!(reg_val & PIPEACONF_ENABLE))
+		return -EINVAL;
+
+	spin_lock_irqsave(&dev_priv->irqmask_lock, irqflags);
+
+	if (pipe == 0)
+		dev_priv->vdc_irq_mask |= _PSB_VSYNC_PIPEA_FLAG;
+	else if (pipe == 1)
+		dev_priv->vdc_irq_mask |= _PSB_VSYNC_PIPEB_FLAG;
+
+	PSB_WVDC32(~dev_priv->vdc_irq_mask, PSB_INT_MASK_R);
+	PSB_WVDC32(dev_priv->vdc_irq_mask, PSB_INT_ENABLE_R);
+	psb_enable_pipestat(dev_priv, pipe, PIPE_VBLANK_INTERRUPT_ENABLE);
+
+	spin_unlock_irqrestore(&dev_priv->irqmask_lock, irqflags);
+
+	return 0;
+}
+
+/*
+ * It is used to disable VBLANK interrupt
+ */
+void psb_disable_vblank(struct drm_device *dev, int pipe)
+{
+	struct drm_psb_private *dev_priv = dev->dev_private;
+	unsigned long irqflags;
+
+	spin_lock_irqsave(&dev_priv->irqmask_lock, irqflags);
+
+	if (pipe == 0)
+		dev_priv->vdc_irq_mask &= ~_PSB_VSYNC_PIPEA_FLAG;
+	else if (pipe == 1)
+		dev_priv->vdc_irq_mask &= ~_PSB_VSYNC_PIPEB_FLAG;
+
+	PSB_WVDC32(~dev_priv->vdc_irq_mask, PSB_INT_MASK_R);
+	PSB_WVDC32(dev_priv->vdc_irq_mask, PSB_INT_ENABLE_R);
+	psb_disable_pipestat(dev_priv, pipe, PIPE_VBLANK_INTERRUPT_ENABLE);
+
+	spin_unlock_irqrestore(&dev_priv->irqmask_lock, irqflags);
+}
+
+/* Called from drm generic code, passed a 'crtc', which
+ * we use as a pipe index
+ */
+u32 psb_get_vblank_counter(struct drm_device *dev, int pipe)
+{
+	uint32_t high_frame = PIPEAFRAMEHIGH;
+	uint32_t low_frame = PIPEAFRAMEPIXEL;
+	uint32_t pipeconf_reg = PIPEACONF;
+	uint32_t reg_val = 0;
+	uint32_t high1 = 0, high2 = 0, low = 0, count = 0;
+
+	switch (pipe) {
+	case 0:
+		break;
+	case 1:
+		high_frame = PIPEBFRAMEHIGH;
+		low_frame = PIPEBFRAMEPIXEL;
+		pipeconf_reg = PIPEBCONF;
+		break;
+	case 2:
+		high_frame = PIPECFRAMEHIGH;
+		low_frame = PIPECFRAMEPIXEL;
+		pipeconf_reg = PIPECCONF;
+		break;
+	default:
+		dev_err(dev->dev, "%s, invalid pipe.\n", __func__);
+		return 0;
+	}
+
+	if (!gma_power_begin(dev, false))
+		return 0;
+
+	reg_val = REG_READ(pipeconf_reg);
+
+	if (!(reg_val & PIPEACONF_ENABLE)) {
+		dev_err(dev->dev, "trying to get vblank count for disabled pipe %d\n",
+								pipe);
+		goto psb_get_vblank_counter_exit;
+	}
+
+	/*
+	 * High & low register fields aren't synchronized, so make sure
+	 * we get a low value that's stable across two reads of the high
+	 * register.
+	 */
+	do {
+		high1 = ((REG_READ(high_frame) & PIPE_FRAME_HIGH_MASK) >>
+			 PIPE_FRAME_HIGH_SHIFT);
+		low =  ((REG_READ(low_frame) & PIPE_FRAME_LOW_MASK) >>
+			PIPE_FRAME_LOW_SHIFT);
+		high2 = ((REG_READ(high_frame) & PIPE_FRAME_HIGH_MASK) >>
+			 PIPE_FRAME_HIGH_SHIFT);
+	} while (high1 != high2);
+
+	count = (high1 << 8) | low;
+
+psb_get_vblank_counter_exit:
+
+	gma_power_end(dev);
+
+	return count;
+}
+
diff --git a/drivers/gpu/drm/gma500/psb_irq.h b/drivers/gpu/drm/gma500/psb_irq.h
new file mode 100644
index 000000000000..216fda38b57d
--- /dev/null
+++ b/drivers/gpu/drm/gma500/psb_irq.h
@@ -0,0 +1,45 @@
+/**************************************************************************
+ * Copyright (c) 2009-2011, Intel Corporation.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Authors:
+ *    Benjamin Defnet <benjamin.r.defnet@intel.com>
+ *    Rajesh Poornachandran <rajesh.poornachandran@intel.com>
+ *
+ **************************************************************************/
+
+#ifndef _SYSIRQ_H_
+#define _SYSIRQ_H_
+
+#include <drm/drmP.h>
+
+bool sysirq_init(struct drm_device *dev);
+void sysirq_uninit(struct drm_device *dev);
+
+void psb_irq_preinstall(struct drm_device *dev);
+int  psb_irq_postinstall(struct drm_device *dev);
+void psb_irq_uninstall(struct drm_device *dev);
+irqreturn_t psb_irq_handler(DRM_IRQ_ARGS);
+
+int psb_irq_enable_dpst(struct drm_device *dev);
+int psb_irq_disable_dpst(struct drm_device *dev);
+void psb_irq_turn_on_dpst(struct drm_device *dev);
+void psb_irq_turn_off_dpst(struct drm_device *dev);
+int  psb_enable_vblank(struct drm_device *dev, int pipe);
+void psb_disable_vblank(struct drm_device *dev, int pipe);
+u32  psb_get_vblank_counter(struct drm_device *dev, int pipe);
+
+#endif /* _SYSIRQ_H_ */
diff --git a/drivers/gpu/drm/gma500/psb_lid.c b/drivers/gpu/drm/gma500/psb_lid.c
new file mode 100644
index 000000000000..b867aabe6bf3
--- /dev/null
+++ b/drivers/gpu/drm/gma500/psb_lid.c
@@ -0,0 +1,88 @@
+/**************************************************************************
+ * Copyright (c) 2007, Intel Corporation.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Authors: Thomas Hellstrom <thomas-at-tungstengraphics-dot-com>
+ **************************************************************************/
+
+#include <drm/drmP.h>
+#include "psb_drv.h"
+#include "psb_reg.h"
+#include "psb_intel_reg.h"
+#include <linux/spinlock.h>
+
+static void psb_lid_timer_func(unsigned long data)
+{
+	struct drm_psb_private * dev_priv = (struct drm_psb_private *)data;
+	struct drm_device *dev = (struct drm_device *)dev_priv->dev;
+	struct timer_list *lid_timer = &dev_priv->lid_timer;
+	unsigned long irq_flags;
+	u32 *lid_state = dev_priv->lid_state;
+	u32 pp_status;
+
+	if (readl(lid_state) == dev_priv->lid_last_state)
+		goto lid_timer_schedule;
+
+	if ((readl(lid_state)) & 0x01) {
+		/*lid state is open*/
+		REG_WRITE(PP_CONTROL, REG_READ(PP_CONTROL) | POWER_TARGET_ON);
+		do {
+			pp_status = REG_READ(PP_STATUS);
+		} while ((pp_status & PP_ON) == 0);
+
+		/*FIXME: should be backlight level before*/
+		psb_intel_lvds_set_brightness(dev, 100);
+	} else {
+		psb_intel_lvds_set_brightness(dev, 0);
+
+		REG_WRITE(PP_CONTROL, REG_READ(PP_CONTROL) & ~POWER_TARGET_ON);
+		do {
+			pp_status = REG_READ(PP_STATUS);
+		} while ((pp_status & PP_ON) == 0);
+	}
+	dev_priv->lid_last_state =  readl(lid_state);
+
+lid_timer_schedule:
+	spin_lock_irqsave(&dev_priv->lid_lock, irq_flags);
+	if (!timer_pending(lid_timer)) {
+		lid_timer->expires = jiffies + PSB_LID_DELAY;
+		add_timer(lid_timer);
+	}
+	spin_unlock_irqrestore(&dev_priv->lid_lock, irq_flags);
+}
+
+void psb_lid_timer_init(struct drm_psb_private *dev_priv)
+{
+	struct timer_list *lid_timer = &dev_priv->lid_timer;
+	unsigned long irq_flags;
+
+	spin_lock_init(&dev_priv->lid_lock);
+	spin_lock_irqsave(&dev_priv->lid_lock, irq_flags);
+
+	init_timer(lid_timer);
+
+	lid_timer->data = (unsigned long)dev_priv;
+	lid_timer->function = psb_lid_timer_func;
+	lid_timer->expires = jiffies + PSB_LID_DELAY;
+
+	add_timer(lid_timer);
+	spin_unlock_irqrestore(&dev_priv->lid_lock, irq_flags);
+}
+
+void psb_lid_timer_takedown(struct drm_psb_private *dev_priv)
+{
+	del_timer_sync(&dev_priv->lid_timer);
+}
+
diff --git a/drivers/gpu/drm/gma500/psb_reg.h b/drivers/gpu/drm/gma500/psb_reg.h
new file mode 100644
index 000000000000..b81c7c1e9c2d
--- /dev/null
+++ b/drivers/gpu/drm/gma500/psb_reg.h
@@ -0,0 +1,582 @@
+/**************************************************************************
+ *
+ * Copyright (c) (2005-2007) Imagination Technologies Limited.
+ * Copyright (c) 2007, Intel Corporation.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA..
+ *
+ **************************************************************************/
+
+#ifndef _PSB_REG_H_
+#define _PSB_REG_H_
+
+#define PSB_CR_CLKGATECTL		0x0000
+#define _PSB_C_CLKGATECTL_AUTO_MAN_REG		(1 << 24)
+#define _PSB_C_CLKGATECTL_USE_CLKG_SHIFT	(20)
+#define _PSB_C_CLKGATECTL_USE_CLKG_MASK		(0x3 << 20)
+#define _PSB_C_CLKGATECTL_DPM_CLKG_SHIFT	(16)
+#define _PSB_C_CLKGATECTL_DPM_CLKG_MASK		(0x3 << 16)
+#define _PSB_C_CLKGATECTL_TA_CLKG_SHIFT		(12)
+#define _PSB_C_CLKGATECTL_TA_CLKG_MASK		(0x3 << 12)
+#define _PSB_C_CLKGATECTL_TSP_CLKG_SHIFT	(8)
+#define _PSB_C_CLKGATECTL_TSP_CLKG_MASK		(0x3 << 8)
+#define _PSB_C_CLKGATECTL_ISP_CLKG_SHIFT	(4)
+#define _PSB_C_CLKGATECTL_ISP_CLKG_MASK		(0x3 << 4)
+#define _PSB_C_CLKGATECTL_2D_CLKG_SHIFT		(0)
+#define _PSB_C_CLKGATECTL_2D_CLKG_MASK		(0x3 << 0)
+#define _PSB_C_CLKGATECTL_CLKG_ENABLED		(0)
+#define _PSB_C_CLKGATECTL_CLKG_DISABLED		(1)
+#define _PSB_C_CLKGATECTL_CLKG_AUTO		(2)
+
+#define PSB_CR_CORE_ID			0x0010
+#define _PSB_CC_ID_ID_SHIFT			(16)
+#define _PSB_CC_ID_ID_MASK			(0xFFFF << 16)
+#define _PSB_CC_ID_CONFIG_SHIFT			(0)
+#define _PSB_CC_ID_CONFIG_MASK			(0xFFFF << 0)
+
+#define PSB_CR_CORE_REVISION		0x0014
+#define _PSB_CC_REVISION_DESIGNER_SHIFT		(24)
+#define _PSB_CC_REVISION_DESIGNER_MASK		(0xFF << 24)
+#define _PSB_CC_REVISION_MAJOR_SHIFT		(16)
+#define _PSB_CC_REVISION_MAJOR_MASK		(0xFF << 16)
+#define _PSB_CC_REVISION_MINOR_SHIFT		(8)
+#define _PSB_CC_REVISION_MINOR_MASK		(0xFF << 8)
+#define _PSB_CC_REVISION_MAINTENANCE_SHIFT	(0)
+#define _PSB_CC_REVISION_MAINTENANCE_MASK	(0xFF << 0)
+
+#define PSB_CR_DESIGNER_REV_FIELD1	0x0018
+
+#define PSB_CR_SOFT_RESET		0x0080
+#define _PSB_CS_RESET_TSP_RESET		(1 << 6)
+#define _PSB_CS_RESET_ISP_RESET		(1 << 5)
+#define _PSB_CS_RESET_USE_RESET		(1 << 4)
+#define _PSB_CS_RESET_TA_RESET		(1 << 3)
+#define _PSB_CS_RESET_DPM_RESET		(1 << 2)
+#define _PSB_CS_RESET_TWOD_RESET	(1 << 1)
+#define _PSB_CS_RESET_BIF_RESET			(1 << 0)
+
+#define PSB_CR_DESIGNER_REV_FIELD2	0x001C
+
+#define PSB_CR_EVENT_HOST_ENABLE2	0x0110
+
+#define PSB_CR_EVENT_STATUS2		0x0118
+
+#define PSB_CR_EVENT_HOST_CLEAR2	0x0114
+#define _PSB_CE2_BIF_REQUESTER_FAULT		(1 << 4)
+
+#define PSB_CR_EVENT_STATUS		0x012C
+
+#define PSB_CR_EVENT_HOST_ENABLE	0x0130
+
+#define PSB_CR_EVENT_HOST_CLEAR		0x0134
+#define _PSB_CE_MASTER_INTERRUPT		(1 << 31)
+#define _PSB_CE_TA_DPM_FAULT			(1 << 28)
+#define _PSB_CE_TWOD_COMPLETE			(1 << 27)
+#define _PSB_CE_DPM_OUT_OF_MEMORY_ZLS		(1 << 25)
+#define _PSB_CE_DPM_TA_MEM_FREE			(1 << 24)
+#define _PSB_CE_PIXELBE_END_RENDER		(1 << 18)
+#define _PSB_CE_SW_EVENT			(1 << 14)
+#define _PSB_CE_TA_FINISHED			(1 << 13)
+#define _PSB_CE_TA_TERMINATE			(1 << 12)
+#define _PSB_CE_DPM_REACHED_MEM_THRESH		(1 << 3)
+#define _PSB_CE_DPM_OUT_OF_MEMORY_GBL		(1 << 2)
+#define _PSB_CE_DPM_OUT_OF_MEMORY_MT		(1 << 1)
+#define _PSB_CE_DPM_3D_MEM_FREE			(1 << 0)
+
+
+#define PSB_USE_OFFSET_MASK		0x0007FFFF
+#define PSB_USE_OFFSET_SIZE		(PSB_USE_OFFSET_MASK + 1)
+#define PSB_CR_USE_CODE_BASE0		0x0A0C
+#define PSB_CR_USE_CODE_BASE1		0x0A10
+#define PSB_CR_USE_CODE_BASE2		0x0A14
+#define PSB_CR_USE_CODE_BASE3		0x0A18
+#define PSB_CR_USE_CODE_BASE4		0x0A1C
+#define PSB_CR_USE_CODE_BASE5		0x0A20
+#define PSB_CR_USE_CODE_BASE6		0x0A24
+#define PSB_CR_USE_CODE_BASE7		0x0A28
+#define PSB_CR_USE_CODE_BASE8		0x0A2C
+#define PSB_CR_USE_CODE_BASE9		0x0A30
+#define PSB_CR_USE_CODE_BASE10		0x0A34
+#define PSB_CR_USE_CODE_BASE11		0x0A38
+#define PSB_CR_USE_CODE_BASE12		0x0A3C
+#define PSB_CR_USE_CODE_BASE13		0x0A40
+#define PSB_CR_USE_CODE_BASE14		0x0A44
+#define PSB_CR_USE_CODE_BASE15		0x0A48
+#define PSB_CR_USE_CODE_BASE(_i)	(0x0A0C + ((_i) << 2))
+#define _PSB_CUC_BASE_DM_SHIFT			(25)
+#define _PSB_CUC_BASE_DM_MASK			(0x3 << 25)
+#define _PSB_CUC_BASE_ADDR_SHIFT		(0)	/* 1024-bit aligned address? */
+#define _PSB_CUC_BASE_ADDR_ALIGNSHIFT		(7)
+#define _PSB_CUC_BASE_ADDR_MASK			(0x1FFFFFF << 0)
+#define _PSB_CUC_DM_VERTEX			(0)
+#define _PSB_CUC_DM_PIXEL			(1)
+#define _PSB_CUC_DM_RESERVED			(2)
+#define _PSB_CUC_DM_EDM				(3)
+
+#define PSB_CR_PDS_EXEC_BASE		0x0AB8
+#define _PSB_CR_PDS_EXEC_BASE_ADDR_SHIFT	(20)	/* 1MB aligned address */
+#define _PSB_CR_PDS_EXEC_BASE_ADDR_ALIGNSHIFT	(20)
+
+#define PSB_CR_EVENT_KICKER		0x0AC4
+#define _PSB_CE_KICKER_ADDRESS_SHIFT		(4)	/* 128-bit aligned address */
+
+#define PSB_CR_EVENT_KICK		0x0AC8
+#define _PSB_CE_KICK_NOW			(1 << 0)
+
+#define PSB_CR_BIF_DIR_LIST_BASE1	0x0C38
+
+#define PSB_CR_BIF_CTRL			0x0C00
+#define _PSB_CB_CTRL_CLEAR_FAULT		(1 << 4)
+#define _PSB_CB_CTRL_INVALDC			(1 << 3)
+#define _PSB_CB_CTRL_FLUSH			(1 << 2)
+
+#define PSB_CR_BIF_INT_STAT		0x0C04
+
+#define PSB_CR_BIF_FAULT		0x0C08
+#define _PSB_CBI_STAT_PF_N_RW			(1 << 14)
+#define _PSB_CBI_STAT_FAULT_SHIFT		(0)
+#define _PSB_CBI_STAT_FAULT_MASK		(0x3FFF << 0)
+#define _PSB_CBI_STAT_FAULT_CACHE		(1 << 1)
+#define _PSB_CBI_STAT_FAULT_TA			(1 << 2)
+#define _PSB_CBI_STAT_FAULT_VDM			(1 << 3)
+#define _PSB_CBI_STAT_FAULT_2D			(1 << 4)
+#define _PSB_CBI_STAT_FAULT_PBE			(1 << 5)
+#define _PSB_CBI_STAT_FAULT_TSP			(1 << 6)
+#define _PSB_CBI_STAT_FAULT_ISP			(1 << 7)
+#define _PSB_CBI_STAT_FAULT_USSEPDS		(1 << 8)
+#define _PSB_CBI_STAT_FAULT_HOST		(1 << 9)
+
+#define PSB_CR_BIF_BANK0		0x0C78
+#define PSB_CR_BIF_BANK1		0x0C7C
+#define PSB_CR_BIF_DIR_LIST_BASE0	0x0C84
+#define PSB_CR_BIF_TWOD_REQ_BASE	0x0C88
+#define PSB_CR_BIF_3D_REQ_BASE		0x0CAC
+
+#define PSB_CR_2D_SOCIF			0x0E18
+#define _PSB_C2_SOCIF_FREESPACE_SHIFT		(0)
+#define _PSB_C2_SOCIF_FREESPACE_MASK		(0xFF << 0)
+#define _PSB_C2_SOCIF_EMPTY			(0x80 << 0)
+
+#define PSB_CR_2D_BLIT_STATUS		0x0E04
+#define _PSB_C2B_STATUS_BUSY			(1 << 24)
+#define _PSB_C2B_STATUS_COMPLETE_SHIFT		(0)
+#define _PSB_C2B_STATUS_COMPLETE_MASK		(0xFFFFFF << 0)
+
+/*
+ * 2D defs.
+ */
+
+/*
+ * 2D Slave Port Data : Block Header's Object Type
+ */
+
+#define	PSB_2D_CLIP_BH			(0x00000000)
+#define	PSB_2D_PAT_BH			(0x10000000)
+#define	PSB_2D_CTRL_BH			(0x20000000)
+#define	PSB_2D_SRC_OFF_BH		(0x30000000)
+#define	PSB_2D_MASK_OFF_BH		(0x40000000)
+#define	PSB_2D_RESERVED1_BH		(0x50000000)
+#define	PSB_2D_RESERVED2_BH		(0x60000000)
+#define	PSB_2D_FENCE_BH			(0x70000000)
+#define	PSB_2D_BLIT_BH			(0x80000000)
+#define	PSB_2D_SRC_SURF_BH		(0x90000000)
+#define	PSB_2D_DST_SURF_BH		(0xA0000000)
+#define	PSB_2D_PAT_SURF_BH		(0xB0000000)
+#define	PSB_2D_SRC_PAL_BH		(0xC0000000)
+#define	PSB_2D_PAT_PAL_BH		(0xD0000000)
+#define	PSB_2D_MASK_SURF_BH		(0xE0000000)
+#define	PSB_2D_FLUSH_BH			(0xF0000000)
+
+/*
+ * Clip Definition block (PSB_2D_CLIP_BH)
+ */
+#define PSB_2D_CLIPCOUNT_MAX		(1)
+#define PSB_2D_CLIPCOUNT_MASK		(0x00000000)
+#define PSB_2D_CLIPCOUNT_CLRMASK	(0xFFFFFFFF)
+#define PSB_2D_CLIPCOUNT_SHIFT		(0)
+/* clip rectangle min & max */
+#define PSB_2D_CLIP_XMAX_MASK		(0x00FFF000)
+#define PSB_2D_CLIP_XMAX_CLRMASK	(0xFF000FFF)
+#define PSB_2D_CLIP_XMAX_SHIFT		(12)
+#define PSB_2D_CLIP_XMIN_MASK		(0x00000FFF)
+#define PSB_2D_CLIP_XMIN_CLRMASK	(0x00FFF000)
+#define PSB_2D_CLIP_XMIN_SHIFT		(0)
+/* clip rectangle offset */
+#define PSB_2D_CLIP_YMAX_MASK		(0x00FFF000)
+#define PSB_2D_CLIP_YMAX_CLRMASK	(0xFF000FFF)
+#define PSB_2D_CLIP_YMAX_SHIFT		(12)
+#define PSB_2D_CLIP_YMIN_MASK		(0x00000FFF)
+#define PSB_2D_CLIP_YMIN_CLRMASK	(0x00FFF000)
+#define PSB_2D_CLIP_YMIN_SHIFT		(0)
+
+/*
+ * Pattern Control (PSB_2D_PAT_BH)
+ */
+#define PSB_2D_PAT_HEIGHT_MASK		(0x0000001F)
+#define PSB_2D_PAT_HEIGHT_SHIFT		(0)
+#define PSB_2D_PAT_WIDTH_MASK		(0x000003E0)
+#define PSB_2D_PAT_WIDTH_SHIFT		(5)
+#define PSB_2D_PAT_YSTART_MASK		(0x00007C00)
+#define PSB_2D_PAT_YSTART_SHIFT		(10)
+#define PSB_2D_PAT_XSTART_MASK		(0x000F8000)
+#define PSB_2D_PAT_XSTART_SHIFT		(15)
+
+/*
+ * 2D Control block (PSB_2D_CTRL_BH)
+ */
+/* Present Flags */
+#define PSB_2D_SRCCK_CTRL		(0x00000001)
+#define PSB_2D_DSTCK_CTRL		(0x00000002)
+#define PSB_2D_ALPHA_CTRL		(0x00000004)
+/* Colour Key Colour (SRC/DST)*/
+#define PSB_2D_CK_COL_MASK		(0xFFFFFFFF)
+#define PSB_2D_CK_COL_CLRMASK		(0x00000000)
+#define PSB_2D_CK_COL_SHIFT		(0)
+/* Colour Key Mask (SRC/DST)*/
+#define PSB_2D_CK_MASK_MASK		(0xFFFFFFFF)
+#define PSB_2D_CK_MASK_CLRMASK		(0x00000000)
+#define PSB_2D_CK_MASK_SHIFT		(0)
+/* Alpha Control (Alpha/RGB)*/
+#define PSB_2D_GBLALPHA_MASK		(0x000FF000)
+#define PSB_2D_GBLALPHA_CLRMASK		(0xFFF00FFF)
+#define PSB_2D_GBLALPHA_SHIFT		(12)
+#define PSB_2D_SRCALPHA_OP_MASK		(0x00700000)
+#define PSB_2D_SRCALPHA_OP_CLRMASK	(0xFF8FFFFF)
+#define PSB_2D_SRCALPHA_OP_SHIFT	(20)
+#define PSB_2D_SRCALPHA_OP_ONE		(0x00000000)
+#define PSB_2D_SRCALPHA_OP_SRC		(0x00100000)
+#define PSB_2D_SRCALPHA_OP_DST		(0x00200000)
+#define PSB_2D_SRCALPHA_OP_SG		(0x00300000)
+#define PSB_2D_SRCALPHA_OP_DG		(0x00400000)
+#define PSB_2D_SRCALPHA_OP_GBL		(0x00500000)
+#define PSB_2D_SRCALPHA_OP_ZERO		(0x00600000)
+#define PSB_2D_SRCALPHA_INVERT		(0x00800000)
+#define PSB_2D_SRCALPHA_INVERT_CLR	(0xFF7FFFFF)
+#define PSB_2D_DSTALPHA_OP_MASK		(0x07000000)
+#define PSB_2D_DSTALPHA_OP_CLRMASK	(0xF8FFFFFF)
+#define PSB_2D_DSTALPHA_OP_SHIFT	(24)
+#define PSB_2D_DSTALPHA_OP_ONE		(0x00000000)
+#define PSB_2D_DSTALPHA_OP_SRC		(0x01000000)
+#define PSB_2D_DSTALPHA_OP_DST		(0x02000000)
+#define PSB_2D_DSTALPHA_OP_SG		(0x03000000)
+#define PSB_2D_DSTALPHA_OP_DG		(0x04000000)
+#define PSB_2D_DSTALPHA_OP_GBL		(0x05000000)
+#define PSB_2D_DSTALPHA_OP_ZERO		(0x06000000)
+#define PSB_2D_DSTALPHA_INVERT		(0x08000000)
+#define PSB_2D_DSTALPHA_INVERT_CLR	(0xF7FFFFFF)
+
+#define PSB_2D_PRE_MULTIPLICATION_ENABLE	(0x10000000)
+#define PSB_2D_PRE_MULTIPLICATION_CLRMASK	(0xEFFFFFFF)
+#define PSB_2D_ZERO_SOURCE_ALPHA_ENABLE		(0x20000000)
+#define PSB_2D_ZERO_SOURCE_ALPHA_CLRMASK	(0xDFFFFFFF)
+
+/*
+ *Source Offset (PSB_2D_SRC_OFF_BH)
+ */
+#define PSB_2D_SRCOFF_XSTART_MASK	((0x00000FFF) << 12)
+#define PSB_2D_SRCOFF_XSTART_SHIFT	(12)
+#define PSB_2D_SRCOFF_YSTART_MASK	(0x00000FFF)
+#define PSB_2D_SRCOFF_YSTART_SHIFT	(0)
+
+/*
+ * Mask Offset (PSB_2D_MASK_OFF_BH)
+ */
+#define PSB_2D_MASKOFF_XSTART_MASK	((0x00000FFF) << 12)
+#define PSB_2D_MASKOFF_XSTART_SHIFT	(12)
+#define PSB_2D_MASKOFF_YSTART_MASK	(0x00000FFF)
+#define PSB_2D_MASKOFF_YSTART_SHIFT	(0)
+
+/*
+ * 2D Fence (see PSB_2D_FENCE_BH): bits 0:27 are ignored
+ */
+
+/*
+ *Blit Rectangle (PSB_2D_BLIT_BH)
+ */
+
+#define PSB_2D_ROT_MASK			(3 << 25)
+#define PSB_2D_ROT_CLRMASK		(~PSB_2D_ROT_MASK)
+#define PSB_2D_ROT_NONE			(0 << 25)
+#define PSB_2D_ROT_90DEGS		(1 << 25)
+#define PSB_2D_ROT_180DEGS		(2 << 25)
+#define PSB_2D_ROT_270DEGS		(3 << 25)
+
+#define PSB_2D_COPYORDER_MASK		(3 << 23)
+#define PSB_2D_COPYORDER_CLRMASK	(~PSB_2D_COPYORDER_MASK)
+#define PSB_2D_COPYORDER_TL2BR		(0 << 23)
+#define PSB_2D_COPYORDER_BR2TL		(1 << 23)
+#define PSB_2D_COPYORDER_TR2BL		(2 << 23)
+#define PSB_2D_COPYORDER_BL2TR		(3 << 23)
+
+#define PSB_2D_DSTCK_CLRMASK		(0xFF9FFFFF)
+#define PSB_2D_DSTCK_DISABLE		(0x00000000)
+#define PSB_2D_DSTCK_PASS		(0x00200000)
+#define PSB_2D_DSTCK_REJECT		(0x00400000)
+
+#define PSB_2D_SRCCK_CLRMASK		(0xFFE7FFFF)
+#define PSB_2D_SRCCK_DISABLE		(0x00000000)
+#define PSB_2D_SRCCK_PASS		(0x00080000)
+#define PSB_2D_SRCCK_REJECT		(0x00100000)
+
+#define PSB_2D_CLIP_ENABLE		(0x00040000)
+
+#define PSB_2D_ALPHA_ENABLE		(0x00020000)
+
+#define PSB_2D_PAT_CLRMASK		(0xFFFEFFFF)
+#define PSB_2D_PAT_MASK			(0x00010000)
+#define PSB_2D_USE_PAT			(0x00010000)
+#define PSB_2D_USE_FILL			(0x00000000)
+/*
+ * Tungsten Graphics note on rop codes: If rop A and rop B are
+ * identical, the mask surface will not be read and need not be
+ * set up.
+ */
+
+#define PSB_2D_ROP3B_MASK		(0x0000FF00)
+#define PSB_2D_ROP3B_CLRMASK		(0xFFFF00FF)
+#define PSB_2D_ROP3B_SHIFT		(8)
+/* rop code A */
+#define PSB_2D_ROP3A_MASK		(0x000000FF)
+#define PSB_2D_ROP3A_CLRMASK		(0xFFFFFF00)
+#define PSB_2D_ROP3A_SHIFT		(0)
+
+#define PSB_2D_ROP4_MASK		(0x0000FFFF)
+/*
+ *	DWORD0:	(Only pass if Pattern control == Use Fill Colour)
+ *	Fill Colour RGBA8888
+ */
+#define PSB_2D_FILLCOLOUR_MASK		(0xFFFFFFFF)
+#define PSB_2D_FILLCOLOUR_SHIFT		(0)
+/*
+ *	DWORD1: (Always Present)
+ *	X Start (Dest)
+ *	Y Start (Dest)
+ */
+#define PSB_2D_DST_XSTART_MASK		(0x00FFF000)
+#define PSB_2D_DST_XSTART_CLRMASK	(0xFF000FFF)
+#define PSB_2D_DST_XSTART_SHIFT		(12)
+#define PSB_2D_DST_YSTART_MASK		(0x00000FFF)
+#define PSB_2D_DST_YSTART_CLRMASK	(0xFFFFF000)
+#define PSB_2D_DST_YSTART_SHIFT		(0)
+/*
+ *	DWORD2: (Always Present)
+ *	X Size (Dest)
+ *	Y Size (Dest)
+ */
+#define PSB_2D_DST_XSIZE_MASK		(0x00FFF000)
+#define PSB_2D_DST_XSIZE_CLRMASK	(0xFF000FFF)
+#define PSB_2D_DST_XSIZE_SHIFT		(12)
+#define PSB_2D_DST_YSIZE_MASK		(0x00000FFF)
+#define PSB_2D_DST_YSIZE_CLRMASK	(0xFFFFF000)
+#define PSB_2D_DST_YSIZE_SHIFT		(0)
+
+/*
+ * Source Surface (PSB_2D_SRC_SURF_BH)
+ */
+/*
+ * WORD 0
+ */
+
+#define PSB_2D_SRC_FORMAT_MASK		(0x00078000)
+#define PSB_2D_SRC_1_PAL		(0x00000000)
+#define PSB_2D_SRC_2_PAL		(0x00008000)
+#define PSB_2D_SRC_4_PAL		(0x00010000)
+#define PSB_2D_SRC_8_PAL		(0x00018000)
+#define PSB_2D_SRC_8_ALPHA		(0x00020000)
+#define PSB_2D_SRC_4_ALPHA		(0x00028000)
+#define PSB_2D_SRC_332RGB		(0x00030000)
+#define PSB_2D_SRC_4444ARGB		(0x00038000)
+#define PSB_2D_SRC_555RGB		(0x00040000)
+#define PSB_2D_SRC_1555ARGB		(0x00048000)
+#define PSB_2D_SRC_565RGB		(0x00050000)
+#define PSB_2D_SRC_0888ARGB		(0x00058000)
+#define PSB_2D_SRC_8888ARGB		(0x00060000)
+#define PSB_2D_SRC_8888UYVY		(0x00068000)
+#define PSB_2D_SRC_RESERVED		(0x00070000)
+#define PSB_2D_SRC_1555ARGB_LOOKUP	(0x00078000)
+
+
+#define PSB_2D_SRC_STRIDE_MASK		(0x00007FFF)
+#define PSB_2D_SRC_STRIDE_CLRMASK	(0xFFFF8000)
+#define PSB_2D_SRC_STRIDE_SHIFT		(0)
+/*
+ *  WORD 1 - Base Address
+ */
+#define PSB_2D_SRC_ADDR_MASK		(0x0FFFFFFC)
+#define PSB_2D_SRC_ADDR_CLRMASK		(0x00000003)
+#define PSB_2D_SRC_ADDR_SHIFT		(2)
+#define PSB_2D_SRC_ADDR_ALIGNSHIFT	(2)
+
+/*
+ * Pattern Surface (PSB_2D_PAT_SURF_BH)
+ */
+/*
+ *  WORD 0
+ */
+
+#define PSB_2D_PAT_FORMAT_MASK		(0x00078000)
+#define PSB_2D_PAT_1_PAL		(0x00000000)
+#define PSB_2D_PAT_2_PAL		(0x00008000)
+#define PSB_2D_PAT_4_PAL		(0x00010000)
+#define PSB_2D_PAT_8_PAL		(0x00018000)
+#define PSB_2D_PAT_8_ALPHA		(0x00020000)
+#define PSB_2D_PAT_4_ALPHA		(0x00028000)
+#define PSB_2D_PAT_332RGB		(0x00030000)
+#define PSB_2D_PAT_4444ARGB		(0x00038000)
+#define PSB_2D_PAT_555RGB		(0x00040000)
+#define PSB_2D_PAT_1555ARGB		(0x00048000)
+#define PSB_2D_PAT_565RGB		(0x00050000)
+#define PSB_2D_PAT_0888ARGB		(0x00058000)
+#define PSB_2D_PAT_8888ARGB		(0x00060000)
+
+#define PSB_2D_PAT_STRIDE_MASK		(0x00007FFF)
+#define PSB_2D_PAT_STRIDE_CLRMASK	(0xFFFF8000)
+#define PSB_2D_PAT_STRIDE_SHIFT		(0)
+/*
+ *  WORD 1 - Base Address
+ */
+#define PSB_2D_PAT_ADDR_MASK		(0x0FFFFFFC)
+#define PSB_2D_PAT_ADDR_CLRMASK		(0x00000003)
+#define PSB_2D_PAT_ADDR_SHIFT		(2)
+#define PSB_2D_PAT_ADDR_ALIGNSHIFT	(2)
+
+/*
+ * Destination Surface (PSB_2D_DST_SURF_BH)
+ */
+/*
+ * WORD 0
+ */
+
+#define PSB_2D_DST_FORMAT_MASK		(0x00078000)
+#define PSB_2D_DST_332RGB		(0x00030000)
+#define PSB_2D_DST_4444ARGB		(0x00038000)
+#define PSB_2D_DST_555RGB		(0x00040000)
+#define PSB_2D_DST_1555ARGB		(0x00048000)
+#define PSB_2D_DST_565RGB		(0x00050000)
+#define PSB_2D_DST_0888ARGB		(0x00058000)
+#define PSB_2D_DST_8888ARGB		(0x00060000)
+#define PSB_2D_DST_8888AYUV		(0x00070000)
+
+#define PSB_2D_DST_STRIDE_MASK		(0x00007FFF)
+#define PSB_2D_DST_STRIDE_CLRMASK	(0xFFFF8000)
+#define PSB_2D_DST_STRIDE_SHIFT		(0)
+/*
+ * WORD 1 - Base Address
+ */
+#define PSB_2D_DST_ADDR_MASK		(0x0FFFFFFC)
+#define PSB_2D_DST_ADDR_CLRMASK		(0x00000003)
+#define PSB_2D_DST_ADDR_SHIFT		(2)
+#define PSB_2D_DST_ADDR_ALIGNSHIFT	(2)
+
+/*
+ * Mask Surface (PSB_2D_MASK_SURF_BH)
+ */
+/*
+ * WORD 0
+ */
+#define PSB_2D_MASK_STRIDE_MASK		(0x00007FFF)
+#define PSB_2D_MASK_STRIDE_CLRMASK	(0xFFFF8000)
+#define PSB_2D_MASK_STRIDE_SHIFT	(0)
+/*
+ *  WORD 1 - Base Address
+ */
+#define PSB_2D_MASK_ADDR_MASK		(0x0FFFFFFC)
+#define PSB_2D_MASK_ADDR_CLRMASK	(0x00000003)
+#define PSB_2D_MASK_ADDR_SHIFT		(2)
+#define PSB_2D_MASK_ADDR_ALIGNSHIFT	(2)
+
+/*
+ * Source Palette (PSB_2D_SRC_PAL_BH)
+ */
+
+#define PSB_2D_SRCPAL_ADDR_SHIFT	(0)
+#define PSB_2D_SRCPAL_ADDR_CLRMASK	(0xF0000007)
+#define PSB_2D_SRCPAL_ADDR_MASK		(0x0FFFFFF8)
+#define PSB_2D_SRCPAL_BYTEALIGN		(1024)
+
+/*
+ * Pattern Palette (PSB_2D_PAT_PAL_BH)
+ */
+
+#define PSB_2D_PATPAL_ADDR_SHIFT	(0)
+#define PSB_2D_PATPAL_ADDR_CLRMASK	(0xF0000007)
+#define PSB_2D_PATPAL_ADDR_MASK		(0x0FFFFFF8)
+#define PSB_2D_PATPAL_BYTEALIGN		(1024)
+
+/*
+ * Rop3 Codes (2 LS bytes)
+ */
+
+#define PSB_2D_ROP3_SRCCOPY		(0xCCCC)
+#define PSB_2D_ROP3_PATCOPY		(0xF0F0)
+#define PSB_2D_ROP3_WHITENESS		(0xFFFF)
+#define PSB_2D_ROP3_BLACKNESS		(0x0000)
+#define PSB_2D_ROP3_SRC			(0xCC)
+#define PSB_2D_ROP3_PAT			(0xF0)
+#define PSB_2D_ROP3_DST			(0xAA)
+
+/*
+ * Sizes.
+ */
+
+#define PSB_SCENE_HW_COOKIE_SIZE	16
+#define PSB_TA_MEM_HW_COOKIE_SIZE	16
+
+/*
+ * Scene stuff.
+ */
+
+#define PSB_NUM_HW_SCENES		2
+
+/*
+ * Scheduler completion actions.
+ */
+
+#define PSB_RASTER_BLOCK		0
+#define PSB_RASTER			1
+#define PSB_RETURN			2
+#define PSB_TA				3
+
+/* Power management */
+#define PSB_PUNIT_PORT			0x04
+#define PSB_OSPMBA			0x78
+#define PSB_APMBA			0x7a
+#define PSB_APM_CMD			0x0
+#define PSB_APM_STS			0x04
+#define PSB_PWRGT_VID_ENC_MASK		0x30
+#define PSB_PWRGT_VID_DEC_MASK		0xc
+#define PSB_PWRGT_GL3_MASK		0xc0
+
+#define PSB_PM_SSC			0x20
+#define PSB_PM_SSS			0x30
+#define PSB_PWRGT_DISPLAY_MASK		0xc /*on a different BA than video/gfx*/
+#define MDFLD_PWRGT_DISPLAY_A_CNTR	0x0000000c
+#define MDFLD_PWRGT_DISPLAY_B_CNTR	0x0000c000
+#define MDFLD_PWRGT_DISPLAY_C_CNTR	0x00030000
+#define MDFLD_PWRGT_DISP_MIPI_CNTR	0x000c0000
+#define MDFLD_PWRGT_DISPLAY_CNTR    (MDFLD_PWRGT_DISPLAY_A_CNTR | MDFLD_PWRGT_DISPLAY_B_CNTR | MDFLD_PWRGT_DISPLAY_C_CNTR | MDFLD_PWRGT_DISP_MIPI_CNTR) /* 0x000fc00c */
+/* Display SSS register bits are different in A0 vs. B0 */
+#define PSB_PWRGT_GFX_MASK		0x3
+#define MDFLD_PWRGT_DISPLAY_A_STS	0x000000c0
+#define MDFLD_PWRGT_DISPLAY_B_STS	0x00000300
+#define MDFLD_PWRGT_DISPLAY_C_STS	0x00000c00
+#define PSB_PWRGT_GFX_MASK_B0		0xc3
+#define MDFLD_PWRGT_DISPLAY_A_STS_B0	0x0000000c
+#define MDFLD_PWRGT_DISPLAY_B_STS_B0	0x0000c000
+#define MDFLD_PWRGT_DISPLAY_C_STS_B0	0x00030000
+#define MDFLD_PWRGT_DISP_MIPI_STS	0x000c0000
+#define MDFLD_PWRGT_DISPLAY_STS_A0    (MDFLD_PWRGT_DISPLAY_A_STS | MDFLD_PWRGT_DISPLAY_B_STS | MDFLD_PWRGT_DISPLAY_C_STS | MDFLD_PWRGT_DISP_MIPI_STS) /* 0x000fc00c */
+#define MDFLD_PWRGT_DISPLAY_STS_B0    (MDFLD_PWRGT_DISPLAY_A_STS_B0 | MDFLD_PWRGT_DISPLAY_B_STS_B0 | MDFLD_PWRGT_DISPLAY_C_STS_B0 | MDFLD_PWRGT_DISP_MIPI_STS) /* 0x000fc00c */
+#endif
diff --git a/drivers/gpu/drm/i810/i810_dma.c b/drivers/gpu/drm/i810/i810_dma.c
index 8f371e8d630f..f7c17b239833 100644
--- a/drivers/gpu/drm/i810/i810_dma.c
+++ b/drivers/gpu/drm/i810/i810_dma.c
@@ -222,8 +222,6 @@ static int i810_dma_cleanup(struct drm_device *dev)
 			pci_free_consistent(dev->pdev, PAGE_SIZE,
 					    dev_priv->hw_status_page,
 					    dev_priv->dma_status_page);
-			/* Need to rewrite hardware status page */
-			I810_WRITE(0x02080, 0x1ffff000);
 		}
 		kfree(dev->dev_private);
 		dev->dev_private = NULL;
@@ -888,7 +886,7 @@ static int i810_flush_queue(struct drm_device *dev)
 }
 
 /* Must be called with the lock held */
-static void i810_reclaim_buffers(struct drm_device *dev,
+void i810_driver_reclaim_buffers(struct drm_device *dev,
 				 struct drm_file *file_priv)
 {
 	struct drm_device_dma *dma = dev->dma;
@@ -1225,12 +1223,17 @@ void i810_driver_preclose(struct drm_device *dev, struct drm_file *file_priv)
 		if (dev_priv->page_flipping)
 			i810_do_cleanup_pageflip(dev);
 	}
-}
 
-void i810_driver_reclaim_buffers_locked(struct drm_device *dev,
-					struct drm_file *file_priv)
-{
-	i810_reclaim_buffers(dev, file_priv);
+	if (file_priv->master && file_priv->master->lock.hw_lock) {
+		drm_idlelock_take(&file_priv->master->lock);
+		i810_driver_reclaim_buffers(dev, file_priv);
+		drm_idlelock_release(&file_priv->master->lock);
+	} else {
+		/* master disappeared, clean up stuff anyway and hope nothing
+		 * goes wrong */
+		i810_driver_reclaim_buffers(dev, file_priv);
+	}
+
 }
 
 int i810_driver_dma_quiescent(struct drm_device *dev)
diff --git a/drivers/gpu/drm/i810/i810_drv.c b/drivers/gpu/drm/i810/i810_drv.c
index d4266bdf6fb4..053f1ee58393 100644
--- a/drivers/gpu/drm/i810/i810_drv.c
+++ b/drivers/gpu/drm/i810/i810_drv.c
@@ -43,6 +43,17 @@ static struct pci_device_id pciidlist[] = {
 	i810_PCI_IDS
 };
 
+static const struct file_operations i810_driver_fops = {
+	.owner = THIS_MODULE,
+	.open = drm_open,
+	.release = drm_release,
+	.unlocked_ioctl = drm_ioctl,
+	.mmap = drm_mmap,
+	.poll = drm_poll,
+	.fasync = drm_fasync,
+	.llseek = noop_llseek,
+};
+
 static struct drm_driver driver = {
 	.driver_features =
 	    DRIVER_USE_AGP | DRIVER_REQUIRE_AGP | DRIVER_USE_MTRR |
@@ -52,20 +63,9 @@ static struct drm_driver driver = {
 	.lastclose = i810_driver_lastclose,
 	.preclose = i810_driver_preclose,
 	.device_is_agp = i810_driver_device_is_agp,
-	.reclaim_buffers_locked = i810_driver_reclaim_buffers_locked,
 	.dma_quiescent = i810_driver_dma_quiescent,
 	.ioctls = i810_ioctls,
-	.fops = {
-		 .owner = THIS_MODULE,
-		 .open = drm_open,
-		 .release = drm_release,
-		 .unlocked_ioctl = drm_ioctl,
-		 .mmap = drm_mmap,
-		 .poll = drm_poll,
-		 .fasync = drm_fasync,
-		 .llseek = noop_llseek,
-	},
-
+	.fops = &i810_driver_fops,
 	.name = DRIVER_NAME,
 	.desc = DRIVER_DESC,
 	.date = DRIVER_DATE,
diff --git a/drivers/gpu/drm/i810/i810_drv.h b/drivers/gpu/drm/i810/i810_drv.h
index c9339f481795..6e0acad9e0f5 100644
--- a/drivers/gpu/drm/i810/i810_drv.h
+++ b/drivers/gpu/drm/i810/i810_drv.h
@@ -116,14 +116,12 @@ typedef struct drm_i810_private {
 
 				/* i810_dma.c */
 extern int i810_driver_dma_quiescent(struct drm_device *dev);
-extern void i810_driver_reclaim_buffers_locked(struct drm_device *dev,
-					       struct drm_file *file_priv);
+void i810_driver_reclaim_buffers(struct drm_device *dev,
+			         struct drm_file *file_priv);
 extern int i810_driver_load(struct drm_device *, unsigned long flags);
 extern void i810_driver_lastclose(struct drm_device *dev);
 extern void i810_driver_preclose(struct drm_device *dev,
 				 struct drm_file *file_priv);
-extern void i810_driver_reclaim_buffers_locked(struct drm_device *dev,
-					       struct drm_file *file_priv);
 extern int i810_driver_device_is_agp(struct drm_device *dev);
 
 extern long i810_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
diff --git a/drivers/gpu/drm/i915/Makefile b/drivers/gpu/drm/i915/Makefile
index 0ae6a7c5020f..808b255d7fc6 100644
--- a/drivers/gpu/drm/i915/Makefile
+++ b/drivers/gpu/drm/i915/Makefile
@@ -28,6 +28,7 @@ i915-y := i915_drv.o i915_dma.o i915_irq.o i915_mem.o \
 	  intel_dvo.o \
 	  intel_ringbuffer.o \
 	  intel_overlay.o \
+	  intel_sprite.o \
 	  intel_opregion.o \
 	  dvo_ch7xxx.o \
 	  dvo_ch7017.o \
diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 004b048c5192..11807989f918 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -1001,7 +1001,7 @@ static int i915_inttoext_table(struct seq_file *m, void *unused)
 	return 0;
 }
 
-static int i915_drpc_info(struct seq_file *m, void *unused)
+static int ironlake_drpc_info(struct seq_file *m)
 {
 	struct drm_info_node *node = (struct drm_info_node *) m->private;
 	struct drm_device *dev = node->minor->dev;
@@ -1068,6 +1068,90 @@ static int i915_drpc_info(struct seq_file *m, void *unused)
 	return 0;
 }
 
+static int gen6_drpc_info(struct seq_file *m)
+{
+
+	struct drm_info_node *node = (struct drm_info_node *) m->private;
+	struct drm_device *dev = node->minor->dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	u32 rpmodectl1, gt_core_status, rcctl1;
+	int count=0, ret;
+
+
+	ret = mutex_lock_interruptible(&dev->struct_mutex);
+	if (ret)
+		return ret;
+
+	if (atomic_read(&dev_priv->forcewake_count)) {
+		seq_printf(m, "RC information inaccurate because userspace "
+			      "holds a reference \n");
+	} else {
+		/* NB: we cannot use forcewake, else we read the wrong values */
+		while (count++ < 50 && (I915_READ_NOTRACE(FORCEWAKE_ACK) & 1))
+			udelay(10);
+		seq_printf(m, "RC information accurate: %s\n", yesno(count < 51));
+	}
+
+	gt_core_status = readl(dev_priv->regs + GEN6_GT_CORE_STATUS);
+	trace_i915_reg_rw(false, GEN6_GT_CORE_STATUS, gt_core_status, 4);
+
+	rpmodectl1 = I915_READ(GEN6_RP_CONTROL);
+	rcctl1 = I915_READ(GEN6_RC_CONTROL);
+	mutex_unlock(&dev->struct_mutex);
+
+	seq_printf(m, "Video Turbo Mode: %s\n",
+		   yesno(rpmodectl1 & GEN6_RP_MEDIA_TURBO));
+	seq_printf(m, "HW control enabled: %s\n",
+		   yesno(rpmodectl1 & GEN6_RP_ENABLE));
+	seq_printf(m, "SW control enabled: %s\n",
+		   yesno((rpmodectl1 & GEN6_RP_MEDIA_MODE_MASK) ==
+			  GEN6_RP_MEDIA_SW_MODE));
+	seq_printf(m, "RC6 Enabled: %s\n",
+		   yesno(rcctl1 & GEN6_RC_CTL_RC1e_ENABLE));
+	seq_printf(m, "RC6 Enabled: %s\n",
+		   yesno(rcctl1 & GEN6_RC_CTL_RC6_ENABLE));
+	seq_printf(m, "Deep RC6 Enabled: %s\n",
+		   yesno(rcctl1 & GEN6_RC_CTL_RC6p_ENABLE));
+	seq_printf(m, "Deepest RC6 Enabled: %s\n",
+		   yesno(rcctl1 & GEN6_RC_CTL_RC6pp_ENABLE));
+	seq_printf(m, "Current RC state: ");
+	switch (gt_core_status & GEN6_RCn_MASK) {
+	case GEN6_RC0:
+		if (gt_core_status & GEN6_CORE_CPD_STATE_MASK)
+			seq_printf(m, "Core Power Down\n");
+		else
+			seq_printf(m, "on\n");
+		break;
+	case GEN6_RC3:
+		seq_printf(m, "RC3\n");
+		break;
+	case GEN6_RC6:
+		seq_printf(m, "RC6\n");
+		break;
+	case GEN6_RC7:
+		seq_printf(m, "RC7\n");
+		break;
+	default:
+		seq_printf(m, "Unknown\n");
+		break;
+	}
+
+	seq_printf(m, "Core Power Down: %s\n",
+		   yesno(gt_core_status & GEN6_CORE_CPD_STATE_MASK));
+	return 0;
+}
+
+static int i915_drpc_info(struct seq_file *m, void *unused)
+{
+	struct drm_info_node *node = (struct drm_info_node *) m->private;
+	struct drm_device *dev = node->minor->dev;
+
+	if (IS_GEN6(dev) || IS_GEN7(dev))
+		return gen6_drpc_info(m);
+	else
+		return ironlake_drpc_info(m);
+}
+
 static int i915_fbc_status(struct seq_file *m, void *unused)
 {
 	struct drm_info_node *node = (struct drm_info_node *) m->private;
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index a9ae374861e7..5f4d5893e983 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -781,6 +781,9 @@ static int i915_getparam(struct drm_device *dev, void *data,
 	case I915_PARAM_HAS_RELAXED_DELTA:
 		value = 1;
 		break;
+	case I915_PARAM_HAS_GEN7_SOL_RESET:
+		value = 1;
+		break;
 	default:
 		DRM_DEBUG_DRIVER("Unknown parameter %d\n",
 				 param->param);
@@ -2305,6 +2308,8 @@ struct drm_ioctl_desc i915_ioctls[] = {
 	DRM_IOCTL_DEF_DRV(I915_GEM_MADVISE, i915_gem_madvise_ioctl, DRM_UNLOCKED),
 	DRM_IOCTL_DEF_DRV(I915_OVERLAY_PUT_IMAGE, intel_overlay_put_image, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
 	DRM_IOCTL_DEF_DRV(I915_OVERLAY_ATTRS, intel_overlay_attrs, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+	DRM_IOCTL_DEF_DRV(I915_SET_SPRITE_COLORKEY, intel_sprite_set_colorkey, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
+	DRM_IOCTL_DEF_DRV(I915_GET_SPRITE_COLORKEY, intel_sprite_get_colorkey, DRM_MASTER|DRM_CONTROL_ALLOW|DRM_UNLOCKED),
 };
 
 int i915_max_ioctl = DRM_ARRAY_SIZE(i915_ioctls);
diff --git a/drivers/gpu/drm/i915/i915_drv.c b/drivers/gpu/drm/i915/i915_drv.c
index a1103fc6597d..8f7187915b0d 100644
--- a/drivers/gpu/drm/i915/i915_drv.c
+++ b/drivers/gpu/drm/i915/i915_drv.c
@@ -810,6 +810,21 @@ static struct vm_operations_struct i915_gem_vm_ops = {
 	.close = drm_gem_vm_close,
 };
 
+static const struct file_operations i915_driver_fops = {
+	.owner = THIS_MODULE,
+	.open = drm_open,
+	.release = drm_release,
+	.unlocked_ioctl = drm_ioctl,
+	.mmap = drm_gem_mmap,
+	.poll = drm_poll,
+	.fasync = drm_fasync,
+	.read = drm_read,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl = i915_compat_ioctl,
+#endif
+	.llseek = noop_llseek,
+};
+
 static struct drm_driver driver = {
 	/* Don't use MTRRs here; the Xserver or userspace app should
 	 * deal with them for Intel hardware.
@@ -843,21 +858,7 @@ static struct drm_driver driver = {
 	.dumb_map_offset = i915_gem_mmap_gtt,
 	.dumb_destroy = i915_gem_dumb_destroy,
 	.ioctls = i915_ioctls,
-	.fops = {
-		 .owner = THIS_MODULE,
-		 .open = drm_open,
-		 .release = drm_release,
-		 .unlocked_ioctl = drm_ioctl,
-		 .mmap = drm_gem_mmap,
-		 .poll = drm_poll,
-		 .fasync = drm_fasync,
-		 .read = drm_read,
-#ifdef CONFIG_COMPAT
-		 .compat_ioctl = i915_compat_ioctl,
-#endif
-		 .llseek = noop_llseek,
-	},
-
+	.fops = &i915_driver_fops,
 	.name = DRIVER_NAME,
 	.desc = DRIVER_DESC,
 	.date = DRIVER_DATE,
@@ -922,13 +923,6 @@ MODULE_AUTHOR(DRIVER_AUTHOR);
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_LICENSE("GPL and additional rights");
 
-/* We give fast paths for the really cool registers */
-#define NEEDS_FORCE_WAKE(dev_priv, reg) \
-	(((dev_priv)->info->gen >= 6) && \
-	 ((reg) < 0x40000) &&		 \
-	 ((reg) != FORCEWAKE) &&	 \
-	 ((reg) != ECOBUS))
-
 #define __i915_read(x, y) \
 u##x i915_read##x(struct drm_i915_private *dev_priv, u32 reg) { \
 	u##x val = 0; \
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 554bef7a3b9c..602bc80baabb 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -207,6 +207,8 @@ struct drm_i915_display_funcs {
 	int (*get_display_clock_speed)(struct drm_device *dev);
 	int (*get_fifo_size)(struct drm_device *dev, int plane);
 	void (*update_wm)(struct drm_device *dev);
+	void (*update_sprite_wm)(struct drm_device *dev, int pipe,
+				 uint32_t sprite_width, int pixel_size);
 	int (*crtc_mode_set)(struct drm_crtc *crtc,
 			     struct drm_display_mode *mode,
 			     struct drm_display_mode *adjusted_mode,
@@ -337,6 +339,8 @@ typedef struct drm_i915_private {
 	struct timer_list hangcheck_timer;
 	int hangcheck_count;
 	uint32_t last_acthd;
+	uint32_t last_acthd_bsd;
+	uint32_t last_acthd_blt;
 	uint32_t last_instdone;
 	uint32_t last_instdone1;
 
@@ -350,6 +354,7 @@ typedef struct drm_i915_private {
 
 	/* overlay */
 	struct intel_overlay *overlay;
+	bool sprite_scaling_enabled;
 
 	/* LVDS info */
 	int backlight_level;  /* restore backlight to this value */
@@ -1362,8 +1367,7 @@ void __gen6_gt_wait_for_fifo(struct drm_i915_private *dev_priv);
 #define NEEDS_FORCE_WAKE(dev_priv, reg) \
 	(((dev_priv)->info->gen >= 6) && \
 	 ((reg) < 0x40000) &&		 \
-	 ((reg) != FORCEWAKE) &&	 \
-	 ((reg) != ECOBUS))
+	 ((reg) != FORCEWAKE))
 
 #define __i915_read(x, y) \
 	u##x i915_read##x(struct drm_i915_private *dev_priv, u32 reg);
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 8359dc777041..e55badb2d86d 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -2006,9 +2006,9 @@ i915_wait_request(struct intel_ring_buffer *ring,
 					   || atomic_read(&dev_priv->mm.wedged));
 
 			ring->irq_put(ring);
-		} else if (wait_for(i915_seqno_passed(ring->get_seqno(ring),
-						      seqno) ||
-				    atomic_read(&dev_priv->mm.wedged), 3000))
+		} else if (wait_for_atomic(i915_seqno_passed(ring->get_seqno(ring),
+							     seqno) ||
+					   atomic_read(&dev_priv->mm.wedged), 3000))
 			ret = -EBUSY;
 		ring->waiting_seqno = 0;
 
@@ -3309,6 +3309,10 @@ i915_gem_ring_throttle(struct drm_device *dev, struct drm_file *file)
 
 			if (ret == 0 && atomic_read(&dev_priv->mm.wedged))
 				ret = -EIO;
+		} else if (wait_for_atomic(i915_seqno_passed(ring->get_seqno(ring),
+							     seqno) ||
+				    atomic_read(&dev_priv->mm.wedged), 3000)) {
+			ret = -EBUSY;
 		}
 	}
 
diff --git a/drivers/gpu/drm/i915/i915_gem_execbuffer.c b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
index b9da8900ae4e..65e1f0043f9d 100644
--- a/drivers/gpu/drm/i915/i915_gem_execbuffer.c
+++ b/drivers/gpu/drm/i915/i915_gem_execbuffer.c
@@ -971,6 +971,31 @@ i915_gem_execbuffer_retire_commands(struct drm_device *dev,
 }
 
 static int
+i915_reset_gen7_sol_offsets(struct drm_device *dev,
+			    struct intel_ring_buffer *ring)
+{
+	drm_i915_private_t *dev_priv = dev->dev_private;
+	int ret, i;
+
+	if (!IS_GEN7(dev) || ring != &dev_priv->ring[RCS])
+		return 0;
+
+	ret = intel_ring_begin(ring, 4 * 3);
+	if (ret)
+		return ret;
+
+	for (i = 0; i < 4; i++) {
+		intel_ring_emit(ring, MI_LOAD_REGISTER_IMM(1));
+		intel_ring_emit(ring, GEN7_SO_WRITE_OFFSET(i));
+		intel_ring_emit(ring, 0);
+	}
+
+	intel_ring_advance(ring);
+
+	return 0;
+}
+
+static int
 i915_gem_do_execbuffer(struct drm_device *dev, void *data,
 		       struct drm_file *file,
 		       struct drm_i915_gem_execbuffer2 *args,
@@ -984,6 +1009,7 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data,
 	struct intel_ring_buffer *ring;
 	u32 exec_start, exec_len;
 	u32 seqno;
+	u32 mask;
 	int ret, mode, i;
 
 	if (!i915_gem_check_execbuffer(args)) {
@@ -1021,6 +1047,7 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data,
 	}
 
 	mode = args->flags & I915_EXEC_CONSTANTS_MASK;
+	mask = I915_EXEC_CONSTANTS_MASK;
 	switch (mode) {
 	case I915_EXEC_CONSTANTS_REL_GENERAL:
 	case I915_EXEC_CONSTANTS_ABSOLUTE:
@@ -1034,18 +1061,9 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data,
 			    mode == I915_EXEC_CONSTANTS_REL_SURFACE)
 				return -EINVAL;
 
-			ret = intel_ring_begin(ring, 4);
-			if (ret)
-				return ret;
-
-			intel_ring_emit(ring, MI_NOOP);
-			intel_ring_emit(ring, MI_LOAD_REGISTER_IMM(1));
-			intel_ring_emit(ring, INSTPM);
-			intel_ring_emit(ring,
-					I915_EXEC_CONSTANTS_MASK << 16 | mode);
-			intel_ring_advance(ring);
-
-			dev_priv->relative_constants_mode = mode;
+			/* The HW changed the meaning on this bit on gen6 */
+			if (INTEL_INFO(dev)->gen >= 6)
+				mask &= ~I915_EXEC_CONSTANTS_REL_SURFACE;
 		}
 		break;
 	default:
@@ -1176,6 +1194,27 @@ i915_gem_do_execbuffer(struct drm_device *dev, void *data,
 		}
 	}
 
+	if (ring == &dev_priv->ring[RCS] &&
+	    mode != dev_priv->relative_constants_mode) {
+		ret = intel_ring_begin(ring, 4);
+		if (ret)
+				goto err;
+
+		intel_ring_emit(ring, MI_NOOP);
+		intel_ring_emit(ring, MI_LOAD_REGISTER_IMM(1));
+		intel_ring_emit(ring, INSTPM);
+		intel_ring_emit(ring, mask << 16 | mode);
+		intel_ring_advance(ring);
+
+		dev_priv->relative_constants_mode = mode;
+	}
+
+	if (args->flags & I915_EXEC_GEN7_SOL_RESET) {
+		ret = i915_reset_gen7_sol_offsets(dev, ring);
+		if (ret)
+			goto err;
+	}
+
 	trace_i915_gem_ring_dispatch(ring, seqno);
 
 	exec_start = batch_obj->gtt_offset + args->batch_start_offset;
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index b40004b55977..5d433fc11ace 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -1205,7 +1205,7 @@ static void i915_pageflip_stall_check(struct drm_device *dev, int pipe)
 	} else {
 		int dspaddr = DSPADDR(intel_crtc->plane);
 		stall_detected = I915_READ(dspaddr) == (obj->gtt_offset +
-							crtc->y * crtc->fb->pitch +
+							crtc->y * crtc->fb->pitches[0] +
 							crtc->x * crtc->fb->bits_per_pixel/8);
 	}
 
@@ -1649,13 +1649,6 @@ static bool kick_ring(struct intel_ring_buffer *ring)
 		I915_WRITE_CTL(ring, tmp);
 		return true;
 	}
-	if (IS_GEN6(dev) &&
-	    (tmp & RING_WAIT_SEMAPHORE)) {
-		DRM_ERROR("Kicking stuck semaphore on %s\n",
-			  ring->name);
-		I915_WRITE_CTL(ring, tmp);
-		return true;
-	}
 	return false;
 }
 
@@ -1669,7 +1662,7 @@ void i915_hangcheck_elapsed(unsigned long data)
 {
 	struct drm_device *dev = (struct drm_device *)data;
 	drm_i915_private_t *dev_priv = dev->dev_private;
-	uint32_t acthd, instdone, instdone1;
+	uint32_t acthd, instdone, instdone1, acthd_bsd, acthd_blt;
 	bool err = false;
 
 	if (!i915_enable_hangcheck)
@@ -1686,16 +1679,21 @@ void i915_hangcheck_elapsed(unsigned long data)
 	}
 
 	if (INTEL_INFO(dev)->gen < 4) {
-		acthd = I915_READ(ACTHD);
 		instdone = I915_READ(INSTDONE);
 		instdone1 = 0;
 	} else {
-		acthd = I915_READ(ACTHD_I965);
 		instdone = I915_READ(INSTDONE_I965);
 		instdone1 = I915_READ(INSTDONE1);
 	}
+	acthd = intel_ring_get_active_head(&dev_priv->ring[RCS]);
+	acthd_bsd = HAS_BSD(dev) ?
+		intel_ring_get_active_head(&dev_priv->ring[VCS]) : 0;
+	acthd_blt = HAS_BLT(dev) ?
+		intel_ring_get_active_head(&dev_priv->ring[BCS]) : 0;
 
 	if (dev_priv->last_acthd == acthd &&
+	    dev_priv->last_acthd_bsd == acthd_bsd &&
+	    dev_priv->last_acthd_blt == acthd_blt &&
 	    dev_priv->last_instdone == instdone &&
 	    dev_priv->last_instdone1 == instdone1) {
 		if (dev_priv->hangcheck_count++ > 1) {
@@ -1727,6 +1725,8 @@ void i915_hangcheck_elapsed(unsigned long data)
 		dev_priv->hangcheck_count = 0;
 
 		dev_priv->last_acthd = acthd;
+		dev_priv->last_acthd_bsd = acthd_bsd;
+		dev_priv->last_acthd_blt = acthd_blt;
 		dev_priv->last_instdone = instdone;
 		dev_priv->last_instdone1 = instdone1;
 	}
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index a26d5b0a3690..c3afb783cb9d 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -442,6 +442,7 @@
 #define   INSTPM_AGPBUSY_DIS (1<<11) /* gen3: when disabled, pending interrupts
 					will not assert AGPBUSY# and will only
 					be delivered when out of C3. */
+#define   INSTPM_FORCE_ORDERING				(1<<7) /* GEN6+ */
 #define ACTHD	        0x020c8
 #define FW_BLC		0x020d8
 #define FW_BLC2		0x020dc
@@ -2321,6 +2322,7 @@
 #define   PIPECONF_PROGRESSIVE	(0 << 21)
 #define   PIPECONF_INTERLACE_W_FIELD_INDICATION	(6 << 21)
 #define   PIPECONF_INTERLACE_FIELD_0_ONLY		(7 << 21)
+#define   PIPECONF_INTERLACE_MASK	(7 << 21)
 #define   PIPECONF_CXSR_DOWNCLOCK	(1<<16)
 #define   PIPECONF_BPP_MASK	(0x000000e0)
 #define   PIPECONF_BPP_8	(0<<5)
@@ -2459,6 +2461,8 @@
 #define WM3_LP_ILK		0x45110
 #define  WM3_LP_EN		(1<<31)
 #define WM1S_LP_ILK		0x45120
+#define WM2S_LP_IVB		0x45124
+#define WM3S_LP_IVB		0x45128
 #define  WM1S_LP_EN		(1<<31)
 
 /* Memory latency timer register */
@@ -2675,6 +2679,140 @@
 #define _DSPBSURF		0x7119C
 #define _DSPBTILEOFF		0x711A4
 
+/* Sprite A control */
+#define _DVSACNTR		0x72180
+#define   DVS_ENABLE		(1<<31)
+#define   DVS_GAMMA_ENABLE	(1<<30)
+#define   DVS_PIXFORMAT_MASK	(3<<25)
+#define   DVS_FORMAT_YUV422	(0<<25)
+#define   DVS_FORMAT_RGBX101010	(1<<25)
+#define   DVS_FORMAT_RGBX888	(2<<25)
+#define   DVS_FORMAT_RGBX161616	(3<<25)
+#define   DVS_SOURCE_KEY	(1<<22)
+#define   DVS_RGB_ORDER_RGBX	(1<<20)
+#define   DVS_YUV_BYTE_ORDER_MASK (3<<16)
+#define   DVS_YUV_ORDER_YUYV	(0<<16)
+#define   DVS_YUV_ORDER_UYVY	(1<<16)
+#define   DVS_YUV_ORDER_YVYU	(2<<16)
+#define   DVS_YUV_ORDER_VYUY	(3<<16)
+#define   DVS_DEST_KEY		(1<<2)
+#define   DVS_TRICKLE_FEED_DISABLE (1<<14)
+#define   DVS_TILED		(1<<10)
+#define _DVSALINOFF		0x72184
+#define _DVSASTRIDE		0x72188
+#define _DVSAPOS		0x7218c
+#define _DVSASIZE		0x72190
+#define _DVSAKEYVAL		0x72194
+#define _DVSAKEYMSK		0x72198
+#define _DVSASURF		0x7219c
+#define _DVSAKEYMAXVAL		0x721a0
+#define _DVSATILEOFF		0x721a4
+#define _DVSASURFLIVE		0x721ac
+#define _DVSASCALE		0x72204
+#define   DVS_SCALE_ENABLE	(1<<31)
+#define   DVS_FILTER_MASK	(3<<29)
+#define   DVS_FILTER_MEDIUM	(0<<29)
+#define   DVS_FILTER_ENHANCING	(1<<29)
+#define   DVS_FILTER_SOFTENING	(2<<29)
+#define   DVS_VERTICAL_OFFSET_HALF (1<<28) /* must be enabled below */
+#define   DVS_VERTICAL_OFFSET_ENABLE (1<<27)
+#define _DVSAGAMC		0x72300
+
+#define _DVSBCNTR		0x73180
+#define _DVSBLINOFF		0x73184
+#define _DVSBSTRIDE		0x73188
+#define _DVSBPOS		0x7318c
+#define _DVSBSIZE		0x73190
+#define _DVSBKEYVAL		0x73194
+#define _DVSBKEYMSK		0x73198
+#define _DVSBSURF		0x7319c
+#define _DVSBKEYMAXVAL		0x731a0
+#define _DVSBTILEOFF		0x731a4
+#define _DVSBSURFLIVE		0x731ac
+#define _DVSBSCALE		0x73204
+#define _DVSBGAMC		0x73300
+
+#define DVSCNTR(pipe) _PIPE(pipe, _DVSACNTR, _DVSBCNTR)
+#define DVSLINOFF(pipe) _PIPE(pipe, _DVSALINOFF, _DVSBLINOFF)
+#define DVSSTRIDE(pipe) _PIPE(pipe, _DVSASTRIDE, _DVSBSTRIDE)
+#define DVSPOS(pipe) _PIPE(pipe, _DVSAPOS, _DVSBPOS)
+#define DVSSURF(pipe) _PIPE(pipe, _DVSASURF, _DVSBSURF)
+#define DVSKEYMAX(pipe) _PIPE(pipe, _DVSAKEYMAXVAL, _DVSBKEYMAXVAL)
+#define DVSSIZE(pipe) _PIPE(pipe, _DVSASIZE, _DVSBSIZE)
+#define DVSSCALE(pipe) _PIPE(pipe, _DVSASCALE, _DVSBSCALE)
+#define DVSTILEOFF(pipe) _PIPE(pipe, _DVSATILEOFF, _DVSBTILEOFF)
+#define DVSKEYVAL(pipe) _PIPE(pipe, _DVSAKEYVAL, _DVSBKEYVAL)
+#define DVSKEYMSK(pipe) _PIPE(pipe, _DVSAKEYMSK, _DVSBKEYMSK)
+
+#define _SPRA_CTL		0x70280
+#define   SPRITE_ENABLE			(1<<31)
+#define   SPRITE_GAMMA_ENABLE		(1<<30)
+#define   SPRITE_PIXFORMAT_MASK		(7<<25)
+#define   SPRITE_FORMAT_YUV422		(0<<25)
+#define   SPRITE_FORMAT_RGBX101010	(1<<25)
+#define   SPRITE_FORMAT_RGBX888		(2<<25)
+#define   SPRITE_FORMAT_RGBX161616	(3<<25)
+#define   SPRITE_FORMAT_YUV444		(4<<25)
+#define   SPRITE_FORMAT_XR_BGR101010	(5<<25) /* Extended range */
+#define   SPRITE_CSC_ENABLE		(1<<24)
+#define   SPRITE_SOURCE_KEY		(1<<22)
+#define   SPRITE_RGB_ORDER_RGBX		(1<<20) /* only for 888 and 161616 */
+#define   SPRITE_YUV_TO_RGB_CSC_DISABLE	(1<<19)
+#define   SPRITE_YUV_CSC_FORMAT_BT709	(1<<18) /* 0 is BT601 */
+#define   SPRITE_YUV_BYTE_ORDER_MASK	(3<<16)
+#define   SPRITE_YUV_ORDER_YUYV		(0<<16)
+#define   SPRITE_YUV_ORDER_UYVY		(1<<16)
+#define   SPRITE_YUV_ORDER_YVYU		(2<<16)
+#define   SPRITE_YUV_ORDER_VYUY		(3<<16)
+#define   SPRITE_TRICKLE_FEED_DISABLE	(1<<14)
+#define   SPRITE_INT_GAMMA_ENABLE	(1<<13)
+#define   SPRITE_TILED			(1<<10)
+#define   SPRITE_DEST_KEY		(1<<2)
+#define _SPRA_LINOFF		0x70284
+#define _SPRA_STRIDE		0x70288
+#define _SPRA_POS		0x7028c
+#define _SPRA_SIZE		0x70290
+#define _SPRA_KEYVAL		0x70294
+#define _SPRA_KEYMSK		0x70298
+#define _SPRA_SURF		0x7029c
+#define _SPRA_KEYMAX		0x702a0
+#define _SPRA_TILEOFF		0x702a4
+#define _SPRA_SCALE		0x70304
+#define   SPRITE_SCALE_ENABLE	(1<<31)
+#define   SPRITE_FILTER_MASK	(3<<29)
+#define   SPRITE_FILTER_MEDIUM	(0<<29)
+#define   SPRITE_FILTER_ENHANCING	(1<<29)
+#define   SPRITE_FILTER_SOFTENING	(2<<29)
+#define   SPRITE_VERTICAL_OFFSET_HALF	(1<<28) /* must be enabled below */
+#define   SPRITE_VERTICAL_OFFSET_ENABLE	(1<<27)
+#define _SPRA_GAMC		0x70400
+
+#define _SPRB_CTL		0x71280
+#define _SPRB_LINOFF		0x71284
+#define _SPRB_STRIDE		0x71288
+#define _SPRB_POS		0x7128c
+#define _SPRB_SIZE		0x71290
+#define _SPRB_KEYVAL		0x71294
+#define _SPRB_KEYMSK		0x71298
+#define _SPRB_SURF		0x7129c
+#define _SPRB_KEYMAX		0x712a0
+#define _SPRB_TILEOFF		0x712a4
+#define _SPRB_SCALE		0x71304
+#define _SPRB_GAMC		0x71400
+
+#define SPRCTL(pipe) _PIPE(pipe, _SPRA_CTL, _SPRB_CTL)
+#define SPRLINOFF(pipe) _PIPE(pipe, _SPRA_LINOFF, _SPRB_LINOFF)
+#define SPRSTRIDE(pipe) _PIPE(pipe, _SPRA_STRIDE, _SPRB_STRIDE)
+#define SPRPOS(pipe) _PIPE(pipe, _SPRA_POS, _SPRB_POS)
+#define SPRSIZE(pipe) _PIPE(pipe, _SPRA_SIZE, _SPRB_SIZE)
+#define SPRKEYVAL(pipe) _PIPE(pipe, _SPRA_KEYVAL, _SPRB_KEYVAL)
+#define SPRKEYMSK(pipe) _PIPE(pipe, _SPRA_KEYMSK, _SPRB_KEYMSK)
+#define SPRSURF(pipe) _PIPE(pipe, _SPRA_SURF, _SPRB_SURF)
+#define SPRKEYMAX(pipe) _PIPE(pipe, _SPRA_KEYMAX, _SPRB_KEYMAX)
+#define SPRTILEOFF(pipe) _PIPE(pipe, _SPRA_TILEOFF, _SPRB_TILEOFF)
+#define SPRSCALE(pipe) _PIPE(pipe, _SPRA_SCALE, _SPRB_SCALE)
+#define SPRGAMC(pipe) _PIPE(pipe, _SPRA_GAMC, _SPRB_GAMC)
+
 /* VBIOS regs */
 #define VGACNTRL		0x71400
 # define VGA_DISP_DISABLE			(1 << 31)
@@ -2882,6 +3020,10 @@
 #define   ILK_DPFC_DIS1		(1<<8)
 #define   ILK_DPFC_DIS2		(1<<9)
 
+#define IVB_CHICKEN3	0x4200c
+# define CHICKEN3_DGMG_REQ_OUT_FIX_DISABLE	(1 << 5)
+# define CHICKEN3_DGMG_DONE_FIX_DISABLE		(1 << 2)
+
 #define DISP_ARB_CTL	0x45000
 #define  DISP_TILE_SURFACE_SWIZZLING	(1<<13)
 #define  DISP_FBC_WM_DIS		(1<<15)
@@ -3500,7 +3642,11 @@
 #define   GEN6_CAGF_MASK			(0x7f << GEN6_CAGF_SHIFT)
 #define GEN6_RP_CONTROL				0xA024
 #define   GEN6_RP_MEDIA_TURBO			(1<<11)
-#define   GEN6_RP_USE_NORMAL_FREQ		(1<<9)
+#define   GEN6_RP_MEDIA_MODE_MASK		(3<<9)
+#define   GEN6_RP_MEDIA_HW_TURBO_MODE		(3<<9)
+#define   GEN6_RP_MEDIA_HW_NORMAL_MODE		(2<<9)
+#define   GEN6_RP_MEDIA_HW_MODE			(1<<9)
+#define   GEN6_RP_MEDIA_SW_MODE			(0<<9)
 #define   GEN6_RP_MEDIA_IS_GFX			(1<<8)
 #define   GEN6_RP_ENABLE			(1<<7)
 #define   GEN6_RP_UP_IDLE_MIN			(0x1<<3)
@@ -3557,6 +3703,14 @@
 #define GEN6_PCODE_DATA				0x138128
 #define   GEN6_PCODE_FREQ_IA_RATIO_SHIFT	8
 
+#define GEN6_GT_CORE_STATUS		0x138060
+#define   GEN6_CORE_CPD_STATE_MASK	(7<<4)
+#define   GEN6_RCn_MASK			7
+#define   GEN6_RC0			0
+#define   GEN6_RC3			2
+#define   GEN6_RC6			3
+#define   GEN6_RC7			4
+
 #define G4X_AUD_VID_DID			0x62020
 #define INTEL_AUDIO_DEVCL		0x808629FB
 #define INTEL_AUDIO_DEVBLC		0x80862801
@@ -3569,17 +3723,23 @@
 #define G4X_ELD_ACK			(1 << 4)
 #define G4X_HDMIW_HDMIEDID		0x6210C
 
-#define GEN5_HDMIW_HDMIEDID_A		0xE2050
-#define GEN5_AUD_CNTL_ST_A		0xE20B4
-#define GEN5_ELD_BUFFER_SIZE		(0x1f << 10)
-#define GEN5_ELD_ADDRESS		(0x1f << 5)
-#define GEN5_ELD_ACK			(1 << 4)
-#define GEN5_AUD_CNTL_ST2		0xE20C0
-#define GEN5_ELD_VALIDB			(1 << 0)
-#define GEN5_CP_READYB			(1 << 1)
-
-#define GEN7_HDMIW_HDMIEDID_A		0xE5050
-#define GEN7_AUD_CNTRL_ST_A		0xE50B4
-#define GEN7_AUD_CNTRL_ST2		0xE50C0
+#define IBX_HDMIW_HDMIEDID_A		0xE2050
+#define IBX_AUD_CNTL_ST_A		0xE20B4
+#define IBX_ELD_BUFFER_SIZE		(0x1f << 10)
+#define IBX_ELD_ADDRESS			(0x1f << 5)
+#define IBX_ELD_ACK			(1 << 4)
+#define IBX_AUD_CNTL_ST2		0xE20C0
+#define IBX_ELD_VALIDB			(1 << 0)
+#define IBX_CP_READYB			(1 << 1)
+
+#define CPT_HDMIW_HDMIEDID_A		0xE5050
+#define CPT_AUD_CNTL_ST_A		0xE50B4
+#define CPT_AUD_CNTRL_ST2		0xE50C0
+
+/* These are the 4 32-bit write offset registers for each stream
+ * output buffer.  It determines the offset from the
+ * 3DSTATE_SO_BUFFERs that the next streamed vertex output goes to.
+ */
+#define GEN7_SO_WRITE_OFFSET(n)		(0x5280 + (n) * 4)
 
 #endif /* _I915_REG_H_ */
diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c
index daa5743ccbd6..2a3f707caab8 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -915,8 +915,8 @@ static void assert_panel_unlocked(struct drm_i915_private *dev_priv,
 	     pipe_name(pipe));
 }
 
-static void assert_pipe(struct drm_i915_private *dev_priv,
-			enum pipe pipe, bool state)
+void assert_pipe(struct drm_i915_private *dev_priv,
+		 enum pipe pipe, bool state)
 {
 	int reg;
 	u32 val;
@@ -929,8 +929,6 @@ static void assert_pipe(struct drm_i915_private *dev_priv,
 	     "pipe %c assertion failure (expected %s, current %s)\n",
 	     pipe_name(pipe), state_string(state), state_string(cur_state));
 }
-#define assert_pipe_enabled(d, p) assert_pipe(d, p, true)
-#define assert_pipe_disabled(d, p) assert_pipe(d, p, false)
 
 static void assert_plane_enabled(struct drm_i915_private *dev_priv,
 				 enum plane plane)
@@ -1206,7 +1204,8 @@ static void intel_disable_pch_pll(struct drm_i915_private *dev_priv,
 				  enum pipe pipe)
 {
 	int reg;
-	u32 val;
+	u32 val, pll_mask = TRANSC_DPLL_ENABLE | TRANSC_DPLLB_SEL,
+		pll_sel = TRANSC_DPLL_ENABLE;
 
 	if (pipe > 1)
 		return;
@@ -1217,6 +1216,15 @@ static void intel_disable_pch_pll(struct drm_i915_private *dev_priv,
 	/* Make sure transcoder isn't still depending on us */
 	assert_transcoder_disabled(dev_priv, pipe);
 
+	if (pipe == 0)
+		pll_sel |= TRANSC_DPLLA_SEL;
+	else if (pipe == 1)
+		pll_sel |= TRANSC_DPLLB_SEL;
+
+
+	if ((I915_READ(PCH_DPLL_SEL) & pll_mask) == pll_sel)
+		return;
+
 	reg = PCH_DPLL(pipe);
 	val = I915_READ(reg);
 	val &= ~DPLL_VCO_ENABLE;
@@ -1511,8 +1519,8 @@ static void i8xx_enable_fbc(struct drm_crtc *crtc, unsigned long interval)
 	u32 fbc_ctl, fbc_ctl2;
 
 	cfb_pitch = dev_priv->cfb_size / FBC_LL_SIZE;
-	if (fb->pitch < cfb_pitch)
-		cfb_pitch = fb->pitch;
+	if (fb->pitches[0] < cfb_pitch)
+		cfb_pitch = fb->pitches[0];
 
 	/* FBC_CTL wants 64B units */
 	cfb_pitch = (cfb_pitch / 64) - 1;
@@ -2073,11 +2081,11 @@ static int i9xx_update_plane(struct drm_crtc *crtc, struct drm_framebuffer *fb,
 	I915_WRITE(reg, dspcntr);
 
 	Start = obj->gtt_offset;
-	Offset = y * fb->pitch + x * (fb->bits_per_pixel / 8);
+	Offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8);
 
 	DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n",
-		      Start, Offset, x, y, fb->pitch);
-	I915_WRITE(DSPSTRIDE(plane), fb->pitch);
+		      Start, Offset, x, y, fb->pitches[0]);
+	I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]);
 	if (INTEL_INFO(dev)->gen >= 4) {
 		I915_WRITE(DSPSURF(plane), Start);
 		I915_WRITE(DSPTILEOFF(plane), (y << 16) | x);
@@ -2154,11 +2162,11 @@ static int ironlake_update_plane(struct drm_crtc *crtc,
 	I915_WRITE(reg, dspcntr);
 
 	Start = obj->gtt_offset;
-	Offset = y * fb->pitch + x * (fb->bits_per_pixel / 8);
+	Offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8);
 
 	DRM_DEBUG_KMS("Writing base %08lX %08lX %d %d %d\n",
-		      Start, Offset, x, y, fb->pitch);
-	I915_WRITE(DSPSTRIDE(plane), fb->pitch);
+		      Start, Offset, x, y, fb->pitches[0]);
+	I915_WRITE(DSPSTRIDE(plane), fb->pitches[0]);
 	I915_WRITE(DSPSURF(plane), Start);
 	I915_WRITE(DSPTILEOFF(plane), (y << 16) | x);
 	I915_WRITE(DSPADDR(plane), Offset);
@@ -4509,7 +4517,7 @@ static void ironlake_update_wm(struct drm_device *dev)
 	 */
 }
 
-static void sandybridge_update_wm(struct drm_device *dev)
+void sandybridge_update_wm(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	int latency = SNB_READ_WM0_LATENCY() * 100;	/* In unit 0.1us */
@@ -4569,7 +4577,8 @@ static void sandybridge_update_wm(struct drm_device *dev)
 	I915_WRITE(WM2_LP_ILK, 0);
 	I915_WRITE(WM1_LP_ILK, 0);
 
-	if (!single_plane_enabled(enabled))
+	if (!single_plane_enabled(enabled) ||
+	    dev_priv->sprite_scaling_enabled)
 		return;
 	enabled = ffs(enabled) - 1;
 
@@ -4619,6 +4628,149 @@ static void sandybridge_update_wm(struct drm_device *dev)
 		   cursor_wm);
 }
 
+static bool
+sandybridge_compute_sprite_wm(struct drm_device *dev, int plane,
+			      uint32_t sprite_width, int pixel_size,
+			      const struct intel_watermark_params *display,
+			      int display_latency_ns, int *sprite_wm)
+{
+	struct drm_crtc *crtc;
+	int clock;
+	int entries, tlb_miss;
+
+	crtc = intel_get_crtc_for_plane(dev, plane);
+	if (crtc->fb == NULL || !crtc->enabled) {
+		*sprite_wm = display->guard_size;
+		return false;
+	}
+
+	clock = crtc->mode.clock;
+
+	/* Use the small buffer method to calculate the sprite watermark */
+	entries = ((clock * pixel_size / 1000) * display_latency_ns) / 1000;
+	tlb_miss = display->fifo_size*display->cacheline_size -
+		sprite_width * 8;
+	if (tlb_miss > 0)
+		entries += tlb_miss;
+	entries = DIV_ROUND_UP(entries, display->cacheline_size);
+	*sprite_wm = entries + display->guard_size;
+	if (*sprite_wm > (int)display->max_wm)
+		*sprite_wm = display->max_wm;
+
+	return true;
+}
+
+static bool
+sandybridge_compute_sprite_srwm(struct drm_device *dev, int plane,
+				uint32_t sprite_width, int pixel_size,
+				const struct intel_watermark_params *display,
+				int latency_ns, int *sprite_wm)
+{
+	struct drm_crtc *crtc;
+	unsigned long line_time_us;
+	int clock;
+	int line_count, line_size;
+	int small, large;
+	int entries;
+
+	if (!latency_ns) {
+		*sprite_wm = 0;
+		return false;
+	}
+
+	crtc = intel_get_crtc_for_plane(dev, plane);
+	clock = crtc->mode.clock;
+
+	line_time_us = (sprite_width * 1000) / clock;
+	line_count = (latency_ns / line_time_us + 1000) / 1000;
+	line_size = sprite_width * pixel_size;
+
+	/* Use the minimum of the small and large buffer method for primary */
+	small = ((clock * pixel_size / 1000) * latency_ns) / 1000;
+	large = line_count * line_size;
+
+	entries = DIV_ROUND_UP(min(small, large), display->cacheline_size);
+	*sprite_wm = entries + display->guard_size;
+
+	return *sprite_wm > 0x3ff ? false : true;
+}
+
+static void sandybridge_update_sprite_wm(struct drm_device *dev, int pipe,
+					 uint32_t sprite_width, int pixel_size)
+{
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	int latency = SNB_READ_WM0_LATENCY() * 100;	/* In unit 0.1us */
+	int sprite_wm, reg;
+	int ret;
+
+	switch (pipe) {
+	case 0:
+		reg = WM0_PIPEA_ILK;
+		break;
+	case 1:
+		reg = WM0_PIPEB_ILK;
+		break;
+	case 2:
+		reg = WM0_PIPEC_IVB;
+		break;
+	default:
+		return; /* bad pipe */
+	}
+
+	ret = sandybridge_compute_sprite_wm(dev, pipe, sprite_width, pixel_size,
+					    &sandybridge_display_wm_info,
+					    latency, &sprite_wm);
+	if (!ret) {
+		DRM_DEBUG_KMS("failed to compute sprite wm for pipe %d\n",
+			      pipe);
+		return;
+	}
+
+	I915_WRITE(reg, I915_READ(reg) | (sprite_wm << WM0_PIPE_SPRITE_SHIFT));
+	DRM_DEBUG_KMS("sprite watermarks For pipe %d - %d\n", pipe, sprite_wm);
+
+
+	ret = sandybridge_compute_sprite_srwm(dev, pipe, sprite_width,
+					      pixel_size,
+					      &sandybridge_display_srwm_info,
+					      SNB_READ_WM1_LATENCY() * 500,
+					      &sprite_wm);
+	if (!ret) {
+		DRM_DEBUG_KMS("failed to compute sprite lp1 wm on pipe %d\n",
+			      pipe);
+		return;
+	}
+	I915_WRITE(WM1S_LP_ILK, sprite_wm);
+
+	/* Only IVB has two more LP watermarks for sprite */
+	if (!IS_IVYBRIDGE(dev))
+		return;
+
+	ret = sandybridge_compute_sprite_srwm(dev, pipe, sprite_width,
+					      pixel_size,
+					      &sandybridge_display_srwm_info,
+					      SNB_READ_WM2_LATENCY() * 500,
+					      &sprite_wm);
+	if (!ret) {
+		DRM_DEBUG_KMS("failed to compute sprite lp2 wm on pipe %d\n",
+			      pipe);
+		return;
+	}
+	I915_WRITE(WM2S_LP_IVB, sprite_wm);
+
+	ret = sandybridge_compute_sprite_srwm(dev, pipe, sprite_width,
+					      pixel_size,
+					      &sandybridge_display_srwm_info,
+					      SNB_READ_WM3_LATENCY() * 500,
+					      &sprite_wm);
+	if (!ret) {
+		DRM_DEBUG_KMS("failed to compute sprite lp3 wm on pipe %d\n",
+			      pipe);
+		return;
+	}
+	I915_WRITE(WM3S_LP_IVB, sprite_wm);
+}
+
 /**
  * intel_update_watermarks - update FIFO watermark values based on current modes
  *
@@ -4659,6 +4811,16 @@ static void intel_update_watermarks(struct drm_device *dev)
 		dev_priv->display.update_wm(dev);
 }
 
+void intel_update_sprite_watermarks(struct drm_device *dev, int pipe,
+				    uint32_t sprite_width, int pixel_size)
+{
+	struct drm_i915_private *dev_priv = dev->dev_private;
+
+	if (dev_priv->display.update_sprite_wm)
+		dev_priv->display.update_sprite_wm(dev, pipe, sprite_width,
+						   pixel_size);
+}
+
 static inline bool intel_panel_use_ssc(struct drm_i915_private *dev_priv)
 {
 	if (i915_panel_use_ssc >= 0)
@@ -5155,7 +5317,7 @@ static int i9xx_crtc_mode_set(struct drm_crtc *crtc,
 		adjusted_mode->crtc_vsync_end -= 1;
 		adjusted_mode->crtc_vsync_start -= 1;
 	} else
-		pipeconf &= ~PIPECONF_INTERLACE_W_FIELD_INDICATION; /* progressive */
+		pipeconf &= ~PIPECONF_INTERLACE_MASK; /* progressive */
 
 	I915_WRITE(HTOTAL(pipe),
 		   (adjusted_mode->crtc_hdisplay - 1) |
@@ -5822,14 +5984,45 @@ static int intel_crtc_mode_set(struct drm_crtc *crtc,
 
 	ret = dev_priv->display.crtc_mode_set(crtc, mode, adjusted_mode,
 					      x, y, old_fb);
-
 	drm_vblank_post_modeset(dev, pipe);
 
-	intel_crtc->dpms_mode = DRM_MODE_DPMS_ON;
+	if (ret)
+		intel_crtc->dpms_mode = DRM_MODE_DPMS_OFF;
+	else
+		intel_crtc->dpms_mode = DRM_MODE_DPMS_ON;
 
 	return ret;
 }
 
+static bool intel_eld_uptodate(struct drm_connector *connector,
+			       int reg_eldv, uint32_t bits_eldv,
+			       int reg_elda, uint32_t bits_elda,
+			       int reg_edid)
+{
+	struct drm_i915_private *dev_priv = connector->dev->dev_private;
+	uint8_t *eld = connector->eld;
+	uint32_t i;
+
+	i = I915_READ(reg_eldv);
+	i &= bits_eldv;
+
+	if (!eld[0])
+		return !i;
+
+	if (!i)
+		return false;
+
+	i = I915_READ(reg_elda);
+	i &= ~bits_elda;
+	I915_WRITE(reg_elda, i);
+
+	for (i = 0; i < eld[2]; i++)
+		if (I915_READ(reg_edid) != *((uint32_t *)eld + i))
+			return false;
+
+	return true;
+}
+
 static void g4x_write_eld(struct drm_connector *connector,
 			  struct drm_crtc *crtc)
 {
@@ -5846,6 +6039,12 @@ static void g4x_write_eld(struct drm_connector *connector,
 	else
 		eldv = G4X_ELDV_DEVCTG;
 
+	if (intel_eld_uptodate(connector,
+			       G4X_AUD_CNTL_ST, eldv,
+			       G4X_AUD_CNTL_ST, G4X_ELD_ADDR,
+			       G4X_HDMIW_HDMIEDID))
+		return;
+
 	i = I915_READ(G4X_AUD_CNTL_ST);
 	i &= ~(eldv | G4X_ELD_ADDR);
 	len = (i >> 9) & 0x1f;		/* ELD buffer size */
@@ -5876,14 +6075,14 @@ static void ironlake_write_eld(struct drm_connector *connector,
 	int aud_cntl_st;
 	int aud_cntrl_st2;
 
-	if (IS_IVYBRIDGE(connector->dev)) {
-		hdmiw_hdmiedid = GEN7_HDMIW_HDMIEDID_A;
-		aud_cntl_st = GEN7_AUD_CNTRL_ST_A;
-		aud_cntrl_st2 = GEN7_AUD_CNTRL_ST2;
+	if (HAS_PCH_IBX(connector->dev)) {
+		hdmiw_hdmiedid = IBX_HDMIW_HDMIEDID_A;
+		aud_cntl_st = IBX_AUD_CNTL_ST_A;
+		aud_cntrl_st2 = IBX_AUD_CNTL_ST2;
 	} else {
-		hdmiw_hdmiedid = GEN5_HDMIW_HDMIEDID_A;
-		aud_cntl_st = GEN5_AUD_CNTL_ST_A;
-		aud_cntrl_st2 = GEN5_AUD_CNTL_ST2;
+		hdmiw_hdmiedid = CPT_HDMIW_HDMIEDID_A;
+		aud_cntl_st = CPT_AUD_CNTL_ST_A;
+		aud_cntrl_st2 = CPT_AUD_CNTRL_ST2;
 	}
 
 	i = to_intel_crtc(crtc)->pipe;
@@ -5897,14 +6096,25 @@ static void ironlake_write_eld(struct drm_connector *connector,
 	if (!i) {
 		DRM_DEBUG_DRIVER("Audio directed to unknown port\n");
 		/* operate blindly on all ports */
-		eldv = GEN5_ELD_VALIDB;
-		eldv |= GEN5_ELD_VALIDB << 4;
-		eldv |= GEN5_ELD_VALIDB << 8;
+		eldv = IBX_ELD_VALIDB;
+		eldv |= IBX_ELD_VALIDB << 4;
+		eldv |= IBX_ELD_VALIDB << 8;
 	} else {
 		DRM_DEBUG_DRIVER("ELD on port %c\n", 'A' + i);
-		eldv = GEN5_ELD_VALIDB << ((i - 1) * 4);
+		eldv = IBX_ELD_VALIDB << ((i - 1) * 4);
+	}
+
+	if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) {
+		DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
+		eld[5] |= (1 << 2);	/* Conn_Type, 0x1 = DisplayPort */
 	}
 
+	if (intel_eld_uptodate(connector,
+			       aud_cntrl_st2, eldv,
+			       aud_cntl_st, IBX_ELD_ADDRESS,
+			       hdmiw_hdmiedid))
+		return;
+
 	i = I915_READ(aud_cntrl_st2);
 	i &= ~eldv;
 	I915_WRITE(aud_cntrl_st2, i);
@@ -5912,13 +6122,8 @@ static void ironlake_write_eld(struct drm_connector *connector,
 	if (!eld[0])
 		return;
 
-	if (intel_pipe_has_type(crtc, INTEL_OUTPUT_DISPLAYPORT)) {
-		DRM_DEBUG_DRIVER("ELD: DisplayPort detected\n");
-		eld[5] |= (1 << 2);	/* Conn_Type, 0x1 = DisplayPort */
-	}
-
 	i = I915_READ(aud_cntl_st);
-	i &= ~GEN5_ELD_ADDRESS;
+	i &= ~IBX_ELD_ADDRESS;
 	I915_WRITE(aud_cntl_st, i);
 
 	len = min_t(uint8_t, eld[2], 21);	/* 84 bytes of hw ELD buffer */
@@ -6298,7 +6503,7 @@ static struct drm_display_mode load_detect_mode = {
 
 static struct drm_framebuffer *
 intel_framebuffer_create(struct drm_device *dev,
-			 struct drm_mode_fb_cmd *mode_cmd,
+			 struct drm_mode_fb_cmd2 *mode_cmd,
 			 struct drm_i915_gem_object *obj)
 {
 	struct intel_framebuffer *intel_fb;
@@ -6340,7 +6545,7 @@ intel_framebuffer_create_for_mode(struct drm_device *dev,
 				  int depth, int bpp)
 {
 	struct drm_i915_gem_object *obj;
-	struct drm_mode_fb_cmd mode_cmd;
+	struct drm_mode_fb_cmd2 mode_cmd;
 
 	obj = i915_gem_alloc_object(dev,
 				    intel_framebuffer_size_for_mode(mode, bpp));
@@ -6349,9 +6554,9 @@ intel_framebuffer_create_for_mode(struct drm_device *dev,
 
 	mode_cmd.width = mode->hdisplay;
 	mode_cmd.height = mode->vdisplay;
-	mode_cmd.depth = depth;
-	mode_cmd.bpp = bpp;
-	mode_cmd.pitch = intel_framebuffer_pitch_for_width(mode_cmd.width, bpp);
+	mode_cmd.pitches[0] = intel_framebuffer_pitch_for_width(mode_cmd.width,
+								bpp);
+	mode_cmd.pixel_format = 0;
 
 	return intel_framebuffer_create(dev, &mode_cmd, obj);
 }
@@ -6372,11 +6577,11 @@ mode_fits_in_fbdev(struct drm_device *dev,
 		return NULL;
 
 	fb = &dev_priv->fbdev->ifb.base;
-	if (fb->pitch < intel_framebuffer_pitch_for_width(mode->hdisplay,
-							  fb->bits_per_pixel))
+	if (fb->pitches[0] < intel_framebuffer_pitch_for_width(mode->hdisplay,
+							       fb->bits_per_pixel))
 		return NULL;
 
-	if (obj->base.size < mode->vdisplay * fb->pitch)
+	if (obj->base.size < mode->vdisplay * fb->pitches[0])
 		return NULL;
 
 	return fb;
@@ -7009,7 +7214,7 @@ static int intel_gen2_queue_flip(struct drm_device *dev,
 		goto out;
 
 	/* Offset into the new buffer for cases of shared fbs between CRTCs */
-	offset = crtc->y * fb->pitch + crtc->x * fb->bits_per_pixel/8;
+	offset = crtc->y * fb->pitches[0] + crtc->x * fb->bits_per_pixel/8;
 
 	ret = BEGIN_LP_RING(6);
 	if (ret)
@@ -7026,7 +7231,7 @@ static int intel_gen2_queue_flip(struct drm_device *dev,
 	OUT_RING(MI_NOOP);
 	OUT_RING(MI_DISPLAY_FLIP |
 		 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
-	OUT_RING(fb->pitch);
+	OUT_RING(fb->pitches[0]);
 	OUT_RING(obj->gtt_offset + offset);
 	OUT_RING(MI_NOOP);
 	ADVANCE_LP_RING();
@@ -7050,7 +7255,7 @@ static int intel_gen3_queue_flip(struct drm_device *dev,
 		goto out;
 
 	/* Offset into the new buffer for cases of shared fbs between CRTCs */
-	offset = crtc->y * fb->pitch + crtc->x * fb->bits_per_pixel/8;
+	offset = crtc->y * fb->pitches[0] + crtc->x * fb->bits_per_pixel/8;
 
 	ret = BEGIN_LP_RING(6);
 	if (ret)
@@ -7064,7 +7269,7 @@ static int intel_gen3_queue_flip(struct drm_device *dev,
 	OUT_RING(MI_NOOP);
 	OUT_RING(MI_DISPLAY_FLIP_I915 |
 		 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
-	OUT_RING(fb->pitch);
+	OUT_RING(fb->pitches[0]);
 	OUT_RING(obj->gtt_offset + offset);
 	OUT_RING(MI_NOOP);
 
@@ -7097,7 +7302,7 @@ static int intel_gen4_queue_flip(struct drm_device *dev,
 	 */
 	OUT_RING(MI_DISPLAY_FLIP |
 		 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
-	OUT_RING(fb->pitch);
+	OUT_RING(fb->pitches[0]);
 	OUT_RING(obj->gtt_offset | obj->tiling_mode);
 
 	/* XXX Enabling the panel-fitter across page-flip is so far
@@ -7132,7 +7337,7 @@ static int intel_gen6_queue_flip(struct drm_device *dev,
 
 	OUT_RING(MI_DISPLAY_FLIP |
 		 MI_DISPLAY_FLIP_PLANE(intel_crtc->plane));
-	OUT_RING(fb->pitch | obj->tiling_mode);
+	OUT_RING(fb->pitches[0] | obj->tiling_mode);
 	OUT_RING(obj->gtt_offset);
 
 	pf = I915_READ(PF_CTL(intel_crtc->pipe)) & PF_ENABLE;
@@ -7168,7 +7373,7 @@ static int intel_gen7_queue_flip(struct drm_device *dev,
 		goto out;
 
 	intel_ring_emit(ring, MI_DISPLAY_FLIP_I915 | (intel_crtc->plane << 19));
-	intel_ring_emit(ring, (fb->pitch | obj->tiling_mode));
+	intel_ring_emit(ring, (fb->pitches[0] | obj->tiling_mode));
 	intel_ring_emit(ring, (obj->gtt_offset));
 	intel_ring_emit(ring, (MI_NOOP));
 	intel_ring_advance(ring);
@@ -7594,7 +7799,7 @@ static const struct drm_framebuffer_funcs intel_fb_funcs = {
 
 int intel_framebuffer_init(struct drm_device *dev,
 			   struct intel_framebuffer *intel_fb,
-			   struct drm_mode_fb_cmd *mode_cmd,
+			   struct drm_mode_fb_cmd2 *mode_cmd,
 			   struct drm_i915_gem_object *obj)
 {
 	int ret;
@@ -7602,21 +7807,25 @@ int intel_framebuffer_init(struct drm_device *dev,
 	if (obj->tiling_mode == I915_TILING_Y)
 		return -EINVAL;
 
-	if (mode_cmd->pitch & 63)
+	if (mode_cmd->pitches[0] & 63)
 		return -EINVAL;
 
-	switch (mode_cmd->bpp) {
-	case 8:
-	case 16:
-		/* Only pre-ILK can handle 5:5:5 */
-		if (mode_cmd->depth == 15 && !HAS_PCH_SPLIT(dev))
-			return -EINVAL;
+	switch (mode_cmd->pixel_format) {
+	case DRM_FORMAT_RGB332:
+	case DRM_FORMAT_RGB565:
+	case DRM_FORMAT_XRGB8888:
+	case DRM_FORMAT_ARGB8888:
+	case DRM_FORMAT_XRGB2101010:
+	case DRM_FORMAT_ARGB2101010:
+		/* RGB formats are common across chipsets */
 		break;
-
-	case 24:
-	case 32:
+	case DRM_FORMAT_YUYV:
+	case DRM_FORMAT_UYVY:
+	case DRM_FORMAT_YVYU:
+	case DRM_FORMAT_VYUY:
 		break;
 	default:
+		DRM_ERROR("unsupported pixel format\n");
 		return -EINVAL;
 	}
 
@@ -7634,11 +7843,12 @@ int intel_framebuffer_init(struct drm_device *dev,
 static struct drm_framebuffer *
 intel_user_framebuffer_create(struct drm_device *dev,
 			      struct drm_file *filp,
-			      struct drm_mode_fb_cmd *mode_cmd)
+			      struct drm_mode_fb_cmd2 *mode_cmd)
 {
 	struct drm_i915_gem_object *obj;
 
-	obj = to_intel_bo(drm_gem_object_lookup(dev, filp, mode_cmd->handle));
+	obj = to_intel_bo(drm_gem_object_lookup(dev, filp,
+						mode_cmd->handles[0]));
 	if (&obj->base == NULL)
 		return ERR_PTR(-ENOENT);
 
@@ -7995,7 +8205,7 @@ void gen6_enable_rps(struct drm_i915_private *dev_priv)
 	I915_WRITE(GEN6_RP_IDLE_HYSTERSIS, 10);
 	I915_WRITE(GEN6_RP_CONTROL,
 		   GEN6_RP_MEDIA_TURBO |
-		   GEN6_RP_USE_NORMAL_FREQ |
+		   GEN6_RP_MEDIA_HW_MODE |
 		   GEN6_RP_MEDIA_IS_GFX |
 		   GEN6_RP_ENABLE |
 		   GEN6_RP_UP_BUSY_AVG |
@@ -8250,6 +8460,10 @@ static void ivybridge_init_clock_gating(struct drm_device *dev)
 
 	I915_WRITE(ILK_DSPCLK_GATE, IVB_VRHUNIT_CLK_GATE);
 
+	I915_WRITE(IVB_CHICKEN3,
+		   CHICKEN3_DGMG_REQ_OUT_FIX_DISABLE |
+		   CHICKEN3_DGMG_DONE_FIX_DISABLE);
+
 	for_each_pipe(pipe) {
 		I915_WRITE(DSPCNTR(pipe),
 			   I915_READ(DSPCNTR(pipe)) |
@@ -8543,9 +8757,15 @@ static void intel_init_display(struct drm_device *dev)
 		if (IS_IVYBRIDGE(dev)) {
 			u32	ecobus;
 
+			/* A small trick here - if the bios hasn't configured MT forcewake,
+			 * and if the device is in RC6, then force_wake_mt_get will not wake
+			 * the device and the ECOBUS read will return zero. Which will be
+			 * (correctly) interpreted by the test below as MT forcewake being
+			 * disabled.
+			 */
 			mutex_lock(&dev->struct_mutex);
 			__gen6_gt_force_wake_mt_get(dev_priv);
-			ecobus = I915_READ(ECOBUS);
+			ecobus = I915_READ_NOTRACE(ECOBUS);
 			__gen6_gt_force_wake_mt_put(dev_priv);
 			mutex_unlock(&dev->struct_mutex);
 
@@ -8577,6 +8797,7 @@ static void intel_init_display(struct drm_device *dev)
 		} else if (IS_GEN6(dev)) {
 			if (SNB_READ_WM0_LATENCY()) {
 				dev_priv->display.update_wm = sandybridge_update_wm;
+				dev_priv->display.update_sprite_wm = sandybridge_update_sprite_wm;
 			} else {
 				DRM_DEBUG_KMS("Failed to read display plane latency. "
 					      "Disable CxSR\n");
@@ -8590,6 +8811,7 @@ static void intel_init_display(struct drm_device *dev)
 			dev_priv->display.fdi_link_train = ivb_manual_fdi_link_train;
 			if (SNB_READ_WM0_LATENCY()) {
 				dev_priv->display.update_wm = sandybridge_update_wm;
+				dev_priv->display.update_sprite_wm = sandybridge_update_sprite_wm;
 			} else {
 				DRM_DEBUG_KMS("Failed to read display plane latency. "
 					      "Disable CxSR\n");
@@ -8773,7 +8995,7 @@ static void i915_disable_vga(struct drm_device *dev)
 void intel_modeset_init(struct drm_device *dev)
 {
 	struct drm_i915_private *dev_priv = dev->dev_private;
-	int i;
+	int i, ret;
 
 	drm_mode_config_init(dev);
 
@@ -8803,6 +9025,12 @@ void intel_modeset_init(struct drm_device *dev)
 
 	for (i = 0; i < dev_priv->num_pipe; i++) {
 		intel_crtc_init(dev, i);
+		if (HAS_PCH_SPLIT(dev)) {
+			ret = intel_plane_init(dev, i);
+			if (ret)
+				DRM_ERROR("plane %d init failed: %d\n",
+					  i, ret);
+		}
 	}
 
 	/* Just disable it once at startup */
diff --git a/drivers/gpu/drm/i915/intel_dp.c b/drivers/gpu/drm/i915/intel_dp.c
index 92b041b66e49..db3b461ad412 100644
--- a/drivers/gpu/drm/i915/intel_dp.c
+++ b/drivers/gpu/drm/i915/intel_dp.c
@@ -1926,6 +1926,7 @@ intel_dp_link_down(struct intel_dp *intel_dp)
 			intel_wait_for_vblank(dev, to_intel_crtc(crtc)->pipe);
 	}
 
+	DP &= ~DP_AUDIO_OUTPUT_ENABLE;
 	I915_WRITE(intel_dp->output_reg, DP & ~DP_PORT_EN);
 	POSTING_READ(intel_dp->output_reg);
 	msleep(intel_dp->panel_power_down_delay);
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index a1b4343814e8..1348705faf6b 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -26,6 +26,7 @@
 #define __INTEL_DRV_H__
 
 #include <linux/i2c.h>
+#include "i915_drm.h"
 #include "i915_drv.h"
 #include "drm_crtc.h"
 #include "drm_crtc_helper.h"
@@ -39,7 +40,7 @@
 			ret__ = -ETIMEDOUT;				\
 			break;						\
 		}							\
-		if (W && !(in_atomic() || in_dbg_master())) msleep(W);	\
+		if (W && drm_can_sleep()) msleep(W);	\
 	}								\
 	ret__;								\
 })
@@ -47,13 +48,6 @@
 #define wait_for(COND, MS) _wait_for(COND, MS, 1)
 #define wait_for_atomic(COND, MS) _wait_for(COND, MS, 0)
 
-#define MSLEEP(x) do { \
-	if (in_dbg_master()) \
-		mdelay(x); \
-	else \
-		msleep(x); \
-} while (0)
-
 #define KHz(x) (1000*x)
 #define MHz(x) KHz(1000*x)
 
@@ -177,10 +171,32 @@ struct intel_crtc {
 	bool use_pll_a;
 };
 
+struct intel_plane {
+	struct drm_plane base;
+	enum pipe pipe;
+	struct drm_i915_gem_object *obj;
+	bool primary_disabled;
+	int max_downscale;
+	u32 lut_r[1024], lut_g[1024], lut_b[1024];
+	void (*update_plane)(struct drm_plane *plane,
+			     struct drm_framebuffer *fb,
+			     struct drm_i915_gem_object *obj,
+			     int crtc_x, int crtc_y,
+			     unsigned int crtc_w, unsigned int crtc_h,
+			     uint32_t x, uint32_t y,
+			     uint32_t src_w, uint32_t src_h);
+	void (*disable_plane)(struct drm_plane *plane);
+	int (*update_colorkey)(struct drm_plane *plane,
+			       struct drm_intel_sprite_colorkey *key);
+	void (*get_colorkey)(struct drm_plane *plane,
+			     struct drm_intel_sprite_colorkey *key);
+};
+
 #define to_intel_crtc(x) container_of(x, struct intel_crtc, base)
 #define to_intel_connector(x) container_of(x, struct intel_connector, base)
 #define to_intel_encoder(x) container_of(x, struct intel_encoder, base)
 #define to_intel_framebuffer(x) container_of(x, struct intel_framebuffer, base)
+#define to_intel_plane(x) container_of(x, struct intel_plane, base)
 
 #define DIP_HEADER_SIZE	5
 
@@ -290,6 +306,7 @@ intel_dp_set_m_n(struct drm_crtc *crtc, struct drm_display_mode *mode,
 extern bool intel_dpd_is_edp(struct drm_device *dev);
 extern void intel_edp_link_config(struct intel_encoder *, int *, int *);
 extern bool intel_encoder_is_pch_edp(struct drm_encoder *encoder);
+extern int intel_plane_init(struct drm_device *dev, enum pipe pipe);
 
 /* intel_panel.c */
 extern void intel_fixed_panel_mode(struct drm_display_mode *fixed_mode,
@@ -360,7 +377,7 @@ extern int intel_pin_and_fence_fb_obj(struct drm_device *dev,
 
 extern int intel_framebuffer_init(struct drm_device *dev,
 				  struct intel_framebuffer *ifb,
-				  struct drm_mode_fb_cmd *mode_cmd,
+				  struct drm_mode_fb_cmd2 *mode_cmd,
 				  struct drm_i915_gem_object *obj);
 extern int intel_fbdev_init(struct drm_device *dev);
 extern void intel_fbdev_fini(struct drm_device *dev);
@@ -380,9 +397,25 @@ extern int intel_overlay_attrs(struct drm_device *dev, void *data,
 extern void intel_fb_output_poll_changed(struct drm_device *dev);
 extern void intel_fb_restore_mode(struct drm_device *dev);
 
+extern void assert_pipe(struct drm_i915_private *dev_priv, enum pipe pipe,
+			bool state);
+#define assert_pipe_enabled(d, p) assert_pipe(d, p, true)
+#define assert_pipe_disabled(d, p) assert_pipe(d, p, false)
+
 extern void intel_init_clock_gating(struct drm_device *dev);
 extern void intel_write_eld(struct drm_encoder *encoder,
 			    struct drm_display_mode *mode);
 extern void intel_cpt_verify_modeset(struct drm_device *dev, int pipe);
 
+/* For use by IVB LP watermark workaround in intel_sprite.c */
+extern void sandybridge_update_wm(struct drm_device *dev);
+extern void intel_update_sprite_watermarks(struct drm_device *dev, int pipe,
+					   uint32_t sprite_width,
+					   int pixel_size);
+
+extern int intel_sprite_set_colorkey(struct drm_device *dev, void *data,
+				     struct drm_file *file_priv);
+extern int intel_sprite_get_colorkey(struct drm_device *dev, void *data,
+				     struct drm_file *file_priv);
+
 #endif /* __INTEL_DRV_H__ */
diff --git a/drivers/gpu/drm/i915/intel_fb.c b/drivers/gpu/drm/i915/intel_fb.c
index ec49bae73382..571375a3eef4 100644
--- a/drivers/gpu/drm/i915/intel_fb.c
+++ b/drivers/gpu/drm/i915/intel_fb.c
@@ -65,7 +65,7 @@ static int intelfb_create(struct intel_fbdev *ifbdev,
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct fb_info *info;
 	struct drm_framebuffer *fb;
-	struct drm_mode_fb_cmd mode_cmd;
+	struct drm_mode_fb_cmd2 mode_cmd;
 	struct drm_i915_gem_object *obj;
 	struct device *device = &dev->pdev->dev;
 	int size, ret;
@@ -77,11 +77,12 @@ static int intelfb_create(struct intel_fbdev *ifbdev,
 	mode_cmd.width = sizes->surface_width;
 	mode_cmd.height = sizes->surface_height;
 
-	mode_cmd.bpp = sizes->surface_bpp;
-	mode_cmd.pitch = ALIGN(mode_cmd.width * ((mode_cmd.bpp + 7) / 8), 64);
-	mode_cmd.depth = sizes->surface_depth;
+	mode_cmd.pitches[0] = ALIGN(mode_cmd.width * ((sizes->surface_bpp + 7) /
+						      8), 64);
+	mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
+							  sizes->surface_depth);
 
-	size = mode_cmd.pitch * mode_cmd.height;
+	size = mode_cmd.pitches[0] * mode_cmd.height;
 	size = ALIGN(size, PAGE_SIZE);
 	obj = i915_gem_alloc_object(dev, size);
 	if (!obj) {
@@ -148,7 +149,7 @@ static int intelfb_create(struct intel_fbdev *ifbdev,
 
 //	memset(info->screen_base, 0, size);
 
-	drm_fb_helper_fill_fix(info, fb->pitch, fb->depth);
+	drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
 	drm_fb_helper_fill_var(info, &ifbdev->helper, sizes->fb_width, sizes->fb_height);
 
 	info->pixmap.size = 64*1024;
@@ -269,8 +270,14 @@ void intel_fb_restore_mode(struct drm_device *dev)
 {
 	int ret;
 	drm_i915_private_t *dev_priv = dev->dev_private;
+	struct drm_mode_config *config = &dev->mode_config;
+	struct drm_plane *plane;
 
 	ret = drm_fb_helper_restore_fbdev_mode(&dev_priv->fbdev->helper);
 	if (ret)
 		DRM_DEBUG("failed to restore crtc mode\n");
+
+	/* Be sure to shut off any planes that may be active */
+	list_for_each_entry(plane, &config->plane_list, head)
+		plane->funcs->disable_plane(plane);
 }
diff --git a/drivers/gpu/drm/i915/intel_hdmi.c b/drivers/gpu/drm/i915/intel_hdmi.c
index d4f5a0b2120d..64541f7ef900 100644
--- a/drivers/gpu/drm/i915/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/intel_hdmi.c
@@ -269,6 +269,10 @@ static void intel_hdmi_dpms(struct drm_encoder *encoder, int mode)
 	struct drm_i915_private *dev_priv = dev->dev_private;
 	struct intel_hdmi *intel_hdmi = enc_to_intel_hdmi(encoder);
 	u32 temp;
+	u32 enable_bits = SDVO_ENABLE;
+
+	if (intel_hdmi->has_audio)
+		enable_bits |= SDVO_AUDIO_ENABLE;
 
 	temp = I915_READ(intel_hdmi->sdvox_reg);
 
@@ -281,9 +285,9 @@ static void intel_hdmi_dpms(struct drm_encoder *encoder, int mode)
 	}
 
 	if (mode != DRM_MODE_DPMS_ON) {
-		temp &= ~SDVO_ENABLE;
+		temp &= ~enable_bits;
 	} else {
-		temp |= SDVO_ENABLE;
+		temp |= enable_bits;
 	}
 
 	I915_WRITE(intel_hdmi->sdvox_reg, temp);
diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c
index ca70e2f10445..77e729d4e4f0 100644
--- a/drivers/gpu/drm/i915/intel_ringbuffer.c
+++ b/drivers/gpu/drm/i915/intel_ringbuffer.c
@@ -414,6 +414,11 @@ static int init_render_ring(struct intel_ring_buffer *ring)
 			return ret;
 	}
 
+	if (INTEL_INFO(dev)->gen >= 6) {
+		I915_WRITE(INSTPM,
+			   INSTPM_FORCE_ORDERING << 16 | INSTPM_FORCE_ORDERING);
+	}
+
 	return ret;
 }
 
@@ -787,6 +792,17 @@ ring_add_request(struct intel_ring_buffer *ring,
 }
 
 static bool
+gen7_blt_ring_get_irq(struct intel_ring_buffer *ring)
+{
+	/* The BLT ring on IVB appears to have broken synchronization
+	 * between the seqno write and the interrupt, so that the
+	 * interrupt appears first.  Returning false here makes
+	 * i915_wait_request() do a polling loop, instead.
+	 */
+	return false;
+}
+
+static bool
 gen6_ring_get_irq(struct intel_ring_buffer *ring, u32 gflag, u32 rflag)
 {
 	struct drm_device *dev = ring->dev;
@@ -1119,7 +1135,16 @@ int intel_wait_ring_buffer(struct intel_ring_buffer *ring, int n)
 	}
 
 	trace_i915_ring_wait_begin(ring);
-	end = jiffies + 3 * HZ;
+	if (drm_core_check_feature(dev, DRIVER_GEM))
+		/* With GEM the hangcheck timer should kick us out of the loop,
+		 * leaving it early runs the risk of corrupting GEM state (due
+		 * to running on almost untested codepaths). But on resume
+		 * timers don't work yet, so prevent a complete hang in that
+		 * case by choosing an insanely large timeout. */
+		end = jiffies + 60 * HZ;
+	else
+		end = jiffies + 3 * HZ;
+
 	do {
 		ring->head = I915_READ_HEAD(ring);
 		ring->space = ring_space(ring);
@@ -1552,5 +1577,8 @@ int intel_init_blt_ring_buffer(struct drm_device *dev)
 
 	*ring = gen6_blt_ring;
 
+	if (IS_GEN7(dev))
+		ring->irq_get = gen7_blt_ring_get_irq;
+
 	return intel_init_ring_buffer(dev, ring);
 }
diff --git a/drivers/gpu/drm/i915/intel_sprite.c b/drivers/gpu/drm/i915/intel_sprite.c
new file mode 100644
index 000000000000..d13989fda501
--- /dev/null
+++ b/drivers/gpu/drm/i915/intel_sprite.c
@@ -0,0 +1,668 @@
+/*
+ * Copyright © 2011 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ * Authors:
+ *   Jesse Barnes <jbarnes@virtuousgeek.org>
+ *
+ * New plane/sprite handling.
+ *
+ * The older chips had a separate interface for programming plane related
+ * registers; newer ones are much simpler and we can use the new DRM plane
+ * support.
+ */
+#include "drmP.h"
+#include "drm_crtc.h"
+#include "drm_fourcc.h"
+#include "intel_drv.h"
+#include "i915_drm.h"
+#include "i915_drv.h"
+
+static void
+ivb_update_plane(struct drm_plane *plane, struct drm_framebuffer *fb,
+		 struct drm_i915_gem_object *obj, int crtc_x, int crtc_y,
+		 unsigned int crtc_w, unsigned int crtc_h,
+		 uint32_t x, uint32_t y,
+		 uint32_t src_w, uint32_t src_h)
+{
+	struct drm_device *dev = plane->dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	struct intel_plane *intel_plane = to_intel_plane(plane);
+	int pipe = intel_plane->pipe;
+	u32 sprctl, sprscale = 0;
+	int pixel_size;
+
+	sprctl = I915_READ(SPRCTL(pipe));
+
+	/* Mask out pixel format bits in case we change it */
+	sprctl &= ~SPRITE_PIXFORMAT_MASK;
+	sprctl &= ~SPRITE_RGB_ORDER_RGBX;
+	sprctl &= ~SPRITE_YUV_BYTE_ORDER_MASK;
+
+	switch (fb->pixel_format) {
+	case DRM_FORMAT_XBGR8888:
+		sprctl |= SPRITE_FORMAT_RGBX888;
+		pixel_size = 4;
+		break;
+	case DRM_FORMAT_XRGB8888:
+		sprctl |= SPRITE_FORMAT_RGBX888 | SPRITE_RGB_ORDER_RGBX;
+		pixel_size = 4;
+		break;
+	case DRM_FORMAT_YUYV:
+		sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_YUYV;
+		pixel_size = 2;
+		break;
+	case DRM_FORMAT_YVYU:
+		sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_YVYU;
+		pixel_size = 2;
+		break;
+	case DRM_FORMAT_UYVY:
+		sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_UYVY;
+		pixel_size = 2;
+		break;
+	case DRM_FORMAT_VYUY:
+		sprctl |= SPRITE_FORMAT_YUV422 | SPRITE_YUV_ORDER_VYUY;
+		pixel_size = 2;
+		break;
+	default:
+		DRM_DEBUG_DRIVER("bad pixel format, assuming RGBX888\n");
+		sprctl |= DVS_FORMAT_RGBX888;
+		pixel_size = 4;
+		break;
+	}
+
+	if (obj->tiling_mode != I915_TILING_NONE)
+		sprctl |= SPRITE_TILED;
+
+	/* must disable */
+	sprctl |= SPRITE_TRICKLE_FEED_DISABLE;
+	sprctl |= SPRITE_ENABLE;
+	sprctl |= SPRITE_DEST_KEY;
+
+	/* Sizes are 0 based */
+	src_w--;
+	src_h--;
+	crtc_w--;
+	crtc_h--;
+
+	intel_update_sprite_watermarks(dev, pipe, crtc_w, pixel_size);
+
+	/*
+	 * IVB workaround: must disable low power watermarks for at least
+	 * one frame before enabling scaling.  LP watermarks can be re-enabled
+	 * when scaling is disabled.
+	 */
+	if (crtc_w != src_w || crtc_h != src_h) {
+		dev_priv->sprite_scaling_enabled = true;
+		sandybridge_update_wm(dev);
+		intel_wait_for_vblank(dev, pipe);
+		sprscale = SPRITE_SCALE_ENABLE | (src_w << 16) | src_h;
+	} else {
+		dev_priv->sprite_scaling_enabled = false;
+		/* potentially re-enable LP watermarks */
+		sandybridge_update_wm(dev);
+	}
+
+	I915_WRITE(SPRSTRIDE(pipe), fb->pitches[0]);
+	I915_WRITE(SPRPOS(pipe), (crtc_y << 16) | crtc_x);
+	if (obj->tiling_mode != I915_TILING_NONE) {
+		I915_WRITE(SPRTILEOFF(pipe), (y << 16) | x);
+	} else {
+		unsigned long offset;
+
+		offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8);
+		I915_WRITE(SPRLINOFF(pipe), offset);
+	}
+	I915_WRITE(SPRSIZE(pipe), (crtc_h << 16) | crtc_w);
+	I915_WRITE(SPRSCALE(pipe), sprscale);
+	I915_WRITE(SPRCTL(pipe), sprctl);
+	I915_WRITE(SPRSURF(pipe), obj->gtt_offset);
+	POSTING_READ(SPRSURF(pipe));
+}
+
+static void
+ivb_disable_plane(struct drm_plane *plane)
+{
+	struct drm_device *dev = plane->dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	struct intel_plane *intel_plane = to_intel_plane(plane);
+	int pipe = intel_plane->pipe;
+
+	I915_WRITE(SPRCTL(pipe), I915_READ(SPRCTL(pipe)) & ~SPRITE_ENABLE);
+	/* Can't leave the scaler enabled... */
+	I915_WRITE(SPRSCALE(pipe), 0);
+	/* Activate double buffered register update */
+	I915_WRITE(SPRSURF(pipe), 0);
+	POSTING_READ(SPRSURF(pipe));
+}
+
+static int
+ivb_update_colorkey(struct drm_plane *plane,
+		    struct drm_intel_sprite_colorkey *key)
+{
+	struct drm_device *dev = plane->dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	struct intel_plane *intel_plane;
+	u32 sprctl;
+	int ret = 0;
+
+	intel_plane = to_intel_plane(plane);
+
+	I915_WRITE(SPRKEYVAL(intel_plane->pipe), key->min_value);
+	I915_WRITE(SPRKEYMAX(intel_plane->pipe), key->max_value);
+	I915_WRITE(SPRKEYMSK(intel_plane->pipe), key->channel_mask);
+
+	sprctl = I915_READ(SPRCTL(intel_plane->pipe));
+	sprctl &= ~(SPRITE_SOURCE_KEY | SPRITE_DEST_KEY);
+	if (key->flags & I915_SET_COLORKEY_DESTINATION)
+		sprctl |= SPRITE_DEST_KEY;
+	else if (key->flags & I915_SET_COLORKEY_SOURCE)
+		sprctl |= SPRITE_SOURCE_KEY;
+	I915_WRITE(SPRCTL(intel_plane->pipe), sprctl);
+
+	POSTING_READ(SPRKEYMSK(intel_plane->pipe));
+
+	return ret;
+}
+
+static void
+ivb_get_colorkey(struct drm_plane *plane, struct drm_intel_sprite_colorkey *key)
+{
+	struct drm_device *dev = plane->dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	struct intel_plane *intel_plane;
+	u32 sprctl;
+
+	intel_plane = to_intel_plane(plane);
+
+	key->min_value = I915_READ(SPRKEYVAL(intel_plane->pipe));
+	key->max_value = I915_READ(SPRKEYMAX(intel_plane->pipe));
+	key->channel_mask = I915_READ(SPRKEYMSK(intel_plane->pipe));
+	key->flags = 0;
+
+	sprctl = I915_READ(SPRCTL(intel_plane->pipe));
+
+	if (sprctl & SPRITE_DEST_KEY)
+		key->flags = I915_SET_COLORKEY_DESTINATION;
+	else if (sprctl & SPRITE_SOURCE_KEY)
+		key->flags = I915_SET_COLORKEY_SOURCE;
+	else
+		key->flags = I915_SET_COLORKEY_NONE;
+}
+
+static void
+snb_update_plane(struct drm_plane *plane, struct drm_framebuffer *fb,
+		 struct drm_i915_gem_object *obj, int crtc_x, int crtc_y,
+		 unsigned int crtc_w, unsigned int crtc_h,
+		 uint32_t x, uint32_t y,
+		 uint32_t src_w, uint32_t src_h)
+{
+	struct drm_device *dev = plane->dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	struct intel_plane *intel_plane = to_intel_plane(plane);
+	int pipe = intel_plane->pipe, pixel_size;
+	u32 dvscntr, dvsscale = 0;
+
+	dvscntr = I915_READ(DVSCNTR(pipe));
+
+	/* Mask out pixel format bits in case we change it */
+	dvscntr &= ~DVS_PIXFORMAT_MASK;
+	dvscntr &= ~DVS_RGB_ORDER_RGBX;
+	dvscntr &= ~DVS_YUV_BYTE_ORDER_MASK;
+
+	switch (fb->pixel_format) {
+	case DRM_FORMAT_XBGR8888:
+		dvscntr |= DVS_FORMAT_RGBX888;
+		pixel_size = 4;
+		break;
+	case DRM_FORMAT_XRGB8888:
+		dvscntr |= DVS_FORMAT_RGBX888 | DVS_RGB_ORDER_RGBX;
+		pixel_size = 4;
+		break;
+	case DRM_FORMAT_YUYV:
+		dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_YUYV;
+		pixel_size = 2;
+		break;
+	case DRM_FORMAT_YVYU:
+		dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_YVYU;
+		pixel_size = 2;
+		break;
+	case DRM_FORMAT_UYVY:
+		dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_UYVY;
+		pixel_size = 2;
+		break;
+	case DRM_FORMAT_VYUY:
+		dvscntr |= DVS_FORMAT_YUV422 | DVS_YUV_ORDER_VYUY;
+		pixel_size = 2;
+		break;
+	default:
+		DRM_DEBUG_DRIVER("bad pixel format, assuming RGBX888\n");
+		dvscntr |= DVS_FORMAT_RGBX888;
+		pixel_size = 4;
+		break;
+	}
+
+	if (obj->tiling_mode != I915_TILING_NONE)
+		dvscntr |= DVS_TILED;
+
+	/* must disable */
+	dvscntr |= DVS_TRICKLE_FEED_DISABLE;
+	dvscntr |= DVS_ENABLE;
+
+	/* Sizes are 0 based */
+	src_w--;
+	src_h--;
+	crtc_w--;
+	crtc_h--;
+
+	intel_update_sprite_watermarks(dev, pipe, crtc_w, pixel_size);
+
+	if (crtc_w != src_w || crtc_h != src_h)
+		dvsscale = DVS_SCALE_ENABLE | (src_w << 16) | src_h;
+
+	I915_WRITE(DVSSTRIDE(pipe), fb->pitches[0]);
+	I915_WRITE(DVSPOS(pipe), (crtc_y << 16) | crtc_x);
+	if (obj->tiling_mode != I915_TILING_NONE) {
+		I915_WRITE(DVSTILEOFF(pipe), (y << 16) | x);
+	} else {
+		unsigned long offset;
+
+		offset = y * fb->pitches[0] + x * (fb->bits_per_pixel / 8);
+		I915_WRITE(DVSLINOFF(pipe), offset);
+	}
+	I915_WRITE(DVSSIZE(pipe), (crtc_h << 16) | crtc_w);
+	I915_WRITE(DVSSCALE(pipe), dvsscale);
+	I915_WRITE(DVSCNTR(pipe), dvscntr);
+	I915_WRITE(DVSSURF(pipe), obj->gtt_offset);
+	POSTING_READ(DVSSURF(pipe));
+}
+
+static void
+snb_disable_plane(struct drm_plane *plane)
+{
+	struct drm_device *dev = plane->dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	struct intel_plane *intel_plane = to_intel_plane(plane);
+	int pipe = intel_plane->pipe;
+
+	I915_WRITE(DVSCNTR(pipe), I915_READ(DVSCNTR(pipe)) & ~DVS_ENABLE);
+	/* Disable the scaler */
+	I915_WRITE(DVSSCALE(pipe), 0);
+	/* Flush double buffered register updates */
+	I915_WRITE(DVSSURF(pipe), 0);
+	POSTING_READ(DVSSURF(pipe));
+}
+
+static void
+intel_enable_primary(struct drm_crtc *crtc)
+{
+	struct drm_device *dev = crtc->dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+	int reg = DSPCNTR(intel_crtc->plane);
+
+	I915_WRITE(reg, I915_READ(reg) | DISPLAY_PLANE_ENABLE);
+}
+
+static void
+intel_disable_primary(struct drm_crtc *crtc)
+{
+	struct drm_device *dev = crtc->dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+	int reg = DSPCNTR(intel_crtc->plane);
+
+	I915_WRITE(reg, I915_READ(reg) & ~DISPLAY_PLANE_ENABLE);
+}
+
+static int
+snb_update_colorkey(struct drm_plane *plane,
+		    struct drm_intel_sprite_colorkey *key)
+{
+	struct drm_device *dev = plane->dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	struct intel_plane *intel_plane;
+	u32 dvscntr;
+	int ret = 0;
+
+	intel_plane = to_intel_plane(plane);
+
+	I915_WRITE(DVSKEYVAL(intel_plane->pipe), key->min_value);
+	I915_WRITE(DVSKEYMAX(intel_plane->pipe), key->max_value);
+	I915_WRITE(DVSKEYMSK(intel_plane->pipe), key->channel_mask);
+
+	dvscntr = I915_READ(DVSCNTR(intel_plane->pipe));
+	dvscntr &= ~(DVS_SOURCE_KEY | DVS_DEST_KEY);
+	if (key->flags & I915_SET_COLORKEY_DESTINATION)
+		dvscntr |= DVS_DEST_KEY;
+	else if (key->flags & I915_SET_COLORKEY_SOURCE)
+		dvscntr |= DVS_SOURCE_KEY;
+	I915_WRITE(DVSCNTR(intel_plane->pipe), dvscntr);
+
+	POSTING_READ(DVSKEYMSK(intel_plane->pipe));
+
+	return ret;
+}
+
+static void
+snb_get_colorkey(struct drm_plane *plane, struct drm_intel_sprite_colorkey *key)
+{
+	struct drm_device *dev = plane->dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	struct intel_plane *intel_plane;
+	u32 dvscntr;
+
+	intel_plane = to_intel_plane(plane);
+
+	key->min_value = I915_READ(DVSKEYVAL(intel_plane->pipe));
+	key->max_value = I915_READ(DVSKEYMAX(intel_plane->pipe));
+	key->channel_mask = I915_READ(DVSKEYMSK(intel_plane->pipe));
+	key->flags = 0;
+
+	dvscntr = I915_READ(DVSCNTR(intel_plane->pipe));
+
+	if (dvscntr & DVS_DEST_KEY)
+		key->flags = I915_SET_COLORKEY_DESTINATION;
+	else if (dvscntr & DVS_SOURCE_KEY)
+		key->flags = I915_SET_COLORKEY_SOURCE;
+	else
+		key->flags = I915_SET_COLORKEY_NONE;
+}
+
+static int
+intel_update_plane(struct drm_plane *plane, struct drm_crtc *crtc,
+		   struct drm_framebuffer *fb, int crtc_x, int crtc_y,
+		   unsigned int crtc_w, unsigned int crtc_h,
+		   uint32_t src_x, uint32_t src_y,
+		   uint32_t src_w, uint32_t src_h)
+{
+	struct drm_device *dev = plane->dev;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+	struct intel_plane *intel_plane = to_intel_plane(plane);
+	struct intel_framebuffer *intel_fb;
+	struct drm_i915_gem_object *obj, *old_obj;
+	int pipe = intel_plane->pipe;
+	int ret = 0;
+	int x = src_x >> 16, y = src_y >> 16;
+	int primary_w = crtc->mode.hdisplay, primary_h = crtc->mode.vdisplay;
+	bool disable_primary = false;
+
+	intel_fb = to_intel_framebuffer(fb);
+	obj = intel_fb->obj;
+
+	old_obj = intel_plane->obj;
+
+	/* Pipe must be running... */
+	if (!(I915_READ(PIPECONF(pipe)) & PIPECONF_ENABLE))
+		return -EINVAL;
+
+	if (crtc_x >= primary_w || crtc_y >= primary_h)
+		return -EINVAL;
+
+	/* Don't modify another pipe's plane */
+	if (intel_plane->pipe != intel_crtc->pipe)
+		return -EINVAL;
+
+	/*
+	 * Clamp the width & height into the visible area.  Note we don't
+	 * try to scale the source if part of the visible region is offscreen.
+	 * The caller must handle that by adjusting source offset and size.
+	 */
+	if ((crtc_x < 0) && ((crtc_x + crtc_w) > 0)) {
+		crtc_w += crtc_x;
+		crtc_x = 0;
+	}
+	if ((crtc_x + crtc_w) <= 0) /* Nothing to display */
+		goto out;
+	if ((crtc_x + crtc_w) > primary_w)
+		crtc_w = primary_w - crtc_x;
+
+	if ((crtc_y < 0) && ((crtc_y + crtc_h) > 0)) {
+		crtc_h += crtc_y;
+		crtc_y = 0;
+	}
+	if ((crtc_y + crtc_h) <= 0) /* Nothing to display */
+		goto out;
+	if (crtc_y + crtc_h > primary_h)
+		crtc_h = primary_h - crtc_y;
+
+	if (!crtc_w || !crtc_h) /* Again, nothing to display */
+		goto out;
+
+	/*
+	 * We can take a larger source and scale it down, but
+	 * only so much...  16x is the max on SNB.
+	 */
+	if (((src_w * src_h) / (crtc_w * crtc_h)) > intel_plane->max_downscale)
+		return -EINVAL;
+
+	/*
+	 * If the sprite is completely covering the primary plane,
+	 * we can disable the primary and save power.
+	 */
+	if ((crtc_x == 0) && (crtc_y == 0) &&
+	    (crtc_w == primary_w) && (crtc_h == primary_h))
+		disable_primary = true;
+
+	mutex_lock(&dev->struct_mutex);
+
+	ret = intel_pin_and_fence_fb_obj(dev, obj, NULL);
+	if (ret) {
+		DRM_ERROR("failed to pin object\n");
+		goto out_unlock;
+	}
+
+	intel_plane->obj = obj;
+
+	/*
+	 * Be sure to re-enable the primary before the sprite is no longer
+	 * covering it fully.
+	 */
+	if (!disable_primary && intel_plane->primary_disabled) {
+		intel_enable_primary(crtc);
+		intel_plane->primary_disabled = false;
+	}
+
+	intel_plane->update_plane(plane, fb, obj, crtc_x, crtc_y,
+				  crtc_w, crtc_h, x, y, src_w, src_h);
+
+	if (disable_primary) {
+		intel_disable_primary(crtc);
+		intel_plane->primary_disabled = true;
+	}
+
+	/* Unpin old obj after new one is active to avoid ugliness */
+	if (old_obj) {
+		/*
+		 * It's fairly common to simply update the position of
+		 * an existing object.  In that case, we don't need to
+		 * wait for vblank to avoid ugliness, we only need to
+		 * do the pin & ref bookkeeping.
+		 */
+		if (old_obj != obj) {
+			mutex_unlock(&dev->struct_mutex);
+			intel_wait_for_vblank(dev, to_intel_crtc(crtc)->pipe);
+			mutex_lock(&dev->struct_mutex);
+		}
+		i915_gem_object_unpin(old_obj);
+	}
+
+out_unlock:
+	mutex_unlock(&dev->struct_mutex);
+out:
+	return ret;
+}
+
+static int
+intel_disable_plane(struct drm_plane *plane)
+{
+	struct drm_device *dev = plane->dev;
+	struct intel_plane *intel_plane = to_intel_plane(plane);
+	int ret = 0;
+
+	if (intel_plane->primary_disabled) {
+		intel_enable_primary(plane->crtc);
+		intel_plane->primary_disabled = false;
+	}
+
+	intel_plane->disable_plane(plane);
+
+	if (!intel_plane->obj)
+		goto out;
+
+	mutex_lock(&dev->struct_mutex);
+	i915_gem_object_unpin(intel_plane->obj);
+	intel_plane->obj = NULL;
+	mutex_unlock(&dev->struct_mutex);
+out:
+
+	return ret;
+}
+
+static void intel_destroy_plane(struct drm_plane *plane)
+{
+	struct intel_plane *intel_plane = to_intel_plane(plane);
+	intel_disable_plane(plane);
+	drm_plane_cleanup(plane);
+	kfree(intel_plane);
+}
+
+int intel_sprite_set_colorkey(struct drm_device *dev, void *data,
+			      struct drm_file *file_priv)
+{
+	struct drm_intel_sprite_colorkey *set = data;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	struct drm_mode_object *obj;
+	struct drm_plane *plane;
+	struct intel_plane *intel_plane;
+	int ret = 0;
+
+	if (!dev_priv)
+		return -EINVAL;
+
+	/* Make sure we don't try to enable both src & dest simultaneously */
+	if ((set->flags & (I915_SET_COLORKEY_DESTINATION | I915_SET_COLORKEY_SOURCE)) == (I915_SET_COLORKEY_DESTINATION | I915_SET_COLORKEY_SOURCE))
+		return -EINVAL;
+
+	mutex_lock(&dev->mode_config.mutex);
+
+	obj = drm_mode_object_find(dev, set->plane_id, DRM_MODE_OBJECT_PLANE);
+	if (!obj) {
+		ret = -EINVAL;
+		goto out_unlock;
+	}
+
+	plane = obj_to_plane(obj);
+	intel_plane = to_intel_plane(plane);
+	ret = intel_plane->update_colorkey(plane, set);
+
+out_unlock:
+	mutex_unlock(&dev->mode_config.mutex);
+	return ret;
+}
+
+int intel_sprite_get_colorkey(struct drm_device *dev, void *data,
+			      struct drm_file *file_priv)
+{
+	struct drm_intel_sprite_colorkey *get = data;
+	struct drm_i915_private *dev_priv = dev->dev_private;
+	struct drm_mode_object *obj;
+	struct drm_plane *plane;
+	struct intel_plane *intel_plane;
+	int ret = 0;
+
+	if (!dev_priv)
+		return -EINVAL;
+
+	mutex_lock(&dev->mode_config.mutex);
+
+	obj = drm_mode_object_find(dev, get->plane_id, DRM_MODE_OBJECT_PLANE);
+	if (!obj) {
+		ret = -EINVAL;
+		goto out_unlock;
+	}
+
+	plane = obj_to_plane(obj);
+	intel_plane = to_intel_plane(plane);
+	intel_plane->get_colorkey(plane, get);
+
+out_unlock:
+	mutex_unlock(&dev->mode_config.mutex);
+	return ret;
+}
+
+static const struct drm_plane_funcs intel_plane_funcs = {
+	.update_plane = intel_update_plane,
+	.disable_plane = intel_disable_plane,
+	.destroy = intel_destroy_plane,
+};
+
+static uint32_t snb_plane_formats[] = {
+	DRM_FORMAT_XBGR8888,
+	DRM_FORMAT_XRGB8888,
+	DRM_FORMAT_YUYV,
+	DRM_FORMAT_YVYU,
+	DRM_FORMAT_UYVY,
+	DRM_FORMAT_VYUY,
+};
+
+int
+intel_plane_init(struct drm_device *dev, enum pipe pipe)
+{
+	struct intel_plane *intel_plane;
+	unsigned long possible_crtcs;
+	int ret;
+
+	if (!(IS_GEN6(dev) || IS_GEN7(dev))) {
+		DRM_ERROR("new plane code only for SNB+\n");
+		return -ENODEV;
+	}
+
+	intel_plane = kzalloc(sizeof(struct intel_plane), GFP_KERNEL);
+	if (!intel_plane)
+		return -ENOMEM;
+
+	if (IS_GEN6(dev)) {
+		intel_plane->max_downscale = 16;
+		intel_plane->update_plane = snb_update_plane;
+		intel_plane->disable_plane = snb_disable_plane;
+		intel_plane->update_colorkey = snb_update_colorkey;
+		intel_plane->get_colorkey = snb_get_colorkey;
+	} else if (IS_GEN7(dev)) {
+		intel_plane->max_downscale = 2;
+		intel_plane->update_plane = ivb_update_plane;
+		intel_plane->disable_plane = ivb_disable_plane;
+		intel_plane->update_colorkey = ivb_update_colorkey;
+		intel_plane->get_colorkey = ivb_get_colorkey;
+	}
+
+	intel_plane->pipe = pipe;
+	possible_crtcs = (1 << pipe);
+	ret = drm_plane_init(dev, &intel_plane->base, possible_crtcs,
+			     &intel_plane_funcs, snb_plane_formats,
+			     ARRAY_SIZE(snb_plane_formats), false);
+	if (ret)
+		kfree(intel_plane);
+
+	return ret;
+}
+
diff --git a/drivers/gpu/drm/mga/mga_drv.c b/drivers/gpu/drm/mga/mga_drv.c
index 33daa29eea66..f9a925d58819 100644
--- a/drivers/gpu/drm/mga/mga_drv.c
+++ b/drivers/gpu/drm/mga/mga_drv.c
@@ -44,6 +44,20 @@ static struct pci_device_id pciidlist[] = {
 	mga_PCI_IDS
 };
 
+static const struct file_operations mga_driver_fops = {
+	.owner = THIS_MODULE,
+	.open = drm_open,
+	.release = drm_release,
+	.unlocked_ioctl = drm_ioctl,
+	.mmap = drm_mmap,
+	.poll = drm_poll,
+	.fasync = drm_fasync,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl = mga_compat_ioctl,
+#endif
+	.llseek = noop_llseek,
+};
+
 static struct drm_driver driver = {
 	.driver_features =
 	    DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_PCI_DMA |
@@ -64,20 +78,7 @@ static struct drm_driver driver = {
 	.reclaim_buffers = drm_core_reclaim_buffers,
 	.ioctls = mga_ioctls,
 	.dma_ioctl = mga_dma_buffers,
-	.fops = {
-		.owner = THIS_MODULE,
-		.open = drm_open,
-		.release = drm_release,
-		.unlocked_ioctl = drm_ioctl,
-		.mmap = drm_mmap,
-		.poll = drm_poll,
-		.fasync = drm_fasync,
-#ifdef CONFIG_COMPAT
-		.compat_ioctl = mga_compat_ioctl,
-#endif
-		.llseek = noop_llseek,
-	},
-
+	.fops = &mga_driver_fops,
 	.name = DRIVER_NAME,
 	.desc = DRIVER_DESC,
 	.date = DRIVER_DATE,
diff --git a/drivers/gpu/drm/nouveau/Makefile b/drivers/gpu/drm/nouveau/Makefile
index 35ef5b1e3566..9f27e3d9e69a 100644
--- a/drivers/gpu/drm/nouveau/Makefile
+++ b/drivers/gpu/drm/nouveau/Makefile
@@ -9,9 +9,9 @@ nouveau-y := nouveau_drv.o nouveau_state.o nouveau_channel.o nouveau_mem.o \
              nouveau_bo.o nouveau_fence.o nouveau_gem.o nouveau_ttm.o \
              nouveau_hw.o nouveau_calc.o nouveau_bios.o nouveau_i2c.o \
              nouveau_display.o nouveau_connector.o nouveau_fbcon.o \
-             nouveau_dp.o nouveau_ramht.o \
+             nouveau_hdmi.o nouveau_dp.o nouveau_ramht.o \
 	     nouveau_pm.o nouveau_volt.o nouveau_perf.o nouveau_temp.o \
-	     nouveau_mm.o nouveau_vm.o \
+	     nouveau_mm.o nouveau_vm.o nouveau_mxm.o nouveau_gpio.o \
              nv04_timer.o \
              nv04_mc.o nv40_mc.o nv50_mc.o \
              nv04_fb.o nv10_fb.o nv30_fb.o nv40_fb.o nv50_fb.o nvc0_fb.o \
@@ -19,9 +19,12 @@ nouveau-y := nouveau_drv.o nouveau_state.o nouveau_channel.o nouveau_mem.o \
              nv04_graph.o nv10_graph.o nv20_graph.o \
              nv40_graph.o nv50_graph.o nvc0_graph.o \
              nv40_grctx.o nv50_grctx.o nvc0_grctx.o \
-             nv84_crypt.o \
+             nv84_crypt.o nv98_crypt.o \
              nva3_copy.o nvc0_copy.o \
              nv31_mpeg.o nv50_mpeg.o \
+             nv84_bsp.o \
+             nv84_vp.o \
+             nv98_ppp.o \
              nv04_instmem.o nv50_instmem.o nvc0_instmem.o \
              nv04_dac.o nv04_dfp.o nv04_tv.o nv17_tv.o nv17_tv_modes.o \
              nv04_crtc.o nv04_display.o nv04_cursor.o \
diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.c b/drivers/gpu/drm/nouveau/nouveau_bios.c
index 5fc201b49d30..e5cbead85e50 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bios.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bios.c
@@ -27,6 +27,7 @@
 #include "nouveau_drv.h"
 #include "nouveau_hw.h"
 #include "nouveau_encoder.h"
+#include "nouveau_gpio.h"
 
 #include <linux/io-mapping.h>
 
@@ -34,9 +35,6 @@
 #define NV_CIO_CRE_44_HEADA 0x0
 #define NV_CIO_CRE_44_HEADB 0x3
 #define FEATURE_MOBILE 0x10	/* also FEATURE_QUADRO for BMP */
-#define LEGACY_I2C_CRT 0x80
-#define LEGACY_I2C_PANEL 0x81
-#define LEGACY_I2C_TV 0x82
 
 #define EDID1_LEN 128
 
@@ -723,115 +721,19 @@ static int dcb_entry_idx_from_crtchead(struct drm_device *dev)
 	return dcb_entry;
 }
 
-static int
-read_dcb_i2c_entry(struct drm_device *dev, int dcb_version, uint8_t *i2ctable, int index, struct dcb_i2c_entry *i2c)
-{
-	uint8_t dcb_i2c_ver = dcb_version, headerlen = 0, entry_len = 4;
-	int i2c_entries = DCB_MAX_NUM_I2C_ENTRIES;
-	int recordoffset = 0, rdofs = 1, wrofs = 0;
-	uint8_t port_type = 0;
-
-	if (!i2ctable)
-		return -EINVAL;
-
-	if (dcb_version >= 0x30) {
-		if (i2ctable[0] != dcb_version) /* necessary? */
-			NV_WARN(dev,
-				"DCB I2C table version mismatch (%02X vs %02X)\n",
-				i2ctable[0], dcb_version);
-		dcb_i2c_ver = i2ctable[0];
-		headerlen = i2ctable[1];
-		if (i2ctable[2] <= DCB_MAX_NUM_I2C_ENTRIES)
-			i2c_entries = i2ctable[2];
-		else
-			NV_WARN(dev,
-				"DCB I2C table has more entries than indexable "
-				"(%d entries, max %d)\n", i2ctable[2],
-				DCB_MAX_NUM_I2C_ENTRIES);
-		entry_len = i2ctable[3];
-		/* [4] is i2c_default_indices, read in parse_dcb_table() */
-	}
-	/*
-	 * It's your own fault if you call this function on a DCB 1.1 BIOS --
-	 * the test below is for DCB 1.2
-	 */
-	if (dcb_version < 0x14) {
-		recordoffset = 2;
-		rdofs = 0;
-		wrofs = 1;
-	}
-
-	if (index == 0xf)
-		return 0;
-	if (index >= i2c_entries) {
-		NV_ERROR(dev, "DCB I2C index too big (%d >= %d)\n",
-			 index, i2ctable[2]);
-		return -ENOENT;
-	}
-	if (i2ctable[headerlen + entry_len * index + 3] == 0xff) {
-		NV_ERROR(dev, "DCB I2C entry invalid\n");
-		return -EINVAL;
-	}
-
-	if (dcb_i2c_ver >= 0x30) {
-		port_type = i2ctable[headerlen + recordoffset + 3 + entry_len * index];
-
-		/*
-		 * Fixup for chips using same address offset for read and
-		 * write.
-		 */
-		if (port_type == 4)	/* seen on C51 */
-			rdofs = wrofs = 1;
-		if (port_type >= 5)	/* G80+ */
-			rdofs = wrofs = 0;
-	}
-
-	if (dcb_i2c_ver >= 0x40) {
-		if (port_type != 5 && port_type != 6)
-			NV_WARN(dev, "DCB I2C table has port type %d\n", port_type);
-
-		i2c->entry = ROM32(i2ctable[headerlen + recordoffset + entry_len * index]);
-	}
-
-	i2c->port_type = port_type;
-	i2c->read = i2ctable[headerlen + recordoffset + rdofs + entry_len * index];
-	i2c->write = i2ctable[headerlen + recordoffset + wrofs + entry_len * index];
-
-	return 0;
-}
-
 static struct nouveau_i2c_chan *
 init_i2c_device_find(struct drm_device *dev, int i2c_index)
 {
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct dcb_table *dcb = &dev_priv->vbios.dcb;
-
 	if (i2c_index == 0xff) {
+		struct drm_nouveau_private *dev_priv = dev->dev_private;
+		struct dcb_table *dcb = &dev_priv->vbios.dcb;
 		/* note: dcb_entry_idx_from_crtchead needs pre-script set-up */
-		int idx = dcb_entry_idx_from_crtchead(dev), shift = 0;
-		int default_indices = dcb->i2c_default_indices;
+		int idx = dcb_entry_idx_from_crtchead(dev);
 
+		i2c_index = NV_I2C_DEFAULT(0);
 		if (idx != 0x7f && dcb->entry[idx].i2c_upper_default)
-			shift = 4;
-
-		i2c_index = (default_indices >> shift) & 0xf;
+			i2c_index = NV_I2C_DEFAULT(1);
 	}
-	if (i2c_index == 0x80)	/* g80+ */
-		i2c_index = dcb->i2c_default_indices & 0xf;
-	else
-	if (i2c_index == 0x81)
-		i2c_index = (dcb->i2c_default_indices & 0xf0) >> 4;
-
-	if (i2c_index >= DCB_MAX_NUM_I2C_ENTRIES) {
-		NV_ERROR(dev, "invalid i2c_index 0x%x\n", i2c_index);
-		return NULL;
-	}
-
-	/* Make sure i2c table entry has been parsed, it may not
-	 * have been if this is a bus not referenced by a DCB encoder
-	 */
-	read_dcb_i2c_entry(dev, dcb->version, dcb->i2c_table,
-			   i2c_index, &dcb->i2c[i2c_index]);
 
 	return nouveau_i2c_find(dev, i2c_index);
 }
@@ -1199,13 +1101,9 @@ init_dp_condition(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
 
 	switch (cond) {
 	case 0:
-	{
-		struct dcb_connector_table_entry *ent =
-			&bios->dcb.connector.entry[dcb->connector];
-
-		if (ent->type != DCB_CONNECTOR_eDP)
+		entry = dcb_conn(dev, dcb->connector);
+		if (!entry || entry[0] != DCB_CONNECTOR_eDP)
 			iexec->execute = false;
-	}
 		break;
 	case 1:
 	case 2:
@@ -3227,49 +3125,6 @@ init_8d(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
 	return 1;
 }
 
-static void
-init_gpio_unknv50(struct nvbios *bios, struct dcb_gpio_entry *gpio)
-{
-	const uint32_t nv50_gpio_ctl[2] = { 0xe100, 0xe28c };
-	u32 r, s, v;
-
-	/* Not a clue, needs de-magicing */
-	r = nv50_gpio_ctl[gpio->line >> 4];
-	s = (gpio->line & 0x0f);
-	v = bios_rd32(bios, r) & ~(0x00010001 << s);
-	switch ((gpio->entry & 0x06000000) >> 25) {
-	case 1:
-		v |= (0x00000001 << s);
-		break;
-	case 2:
-		v |= (0x00010000 << s);
-		break;
-	default:
-		break;
-	}
-
-	bios_wr32(bios, r, v);
-}
-
-static void
-init_gpio_unknvd0(struct nvbios *bios, struct dcb_gpio_entry *gpio)
-{
-	u32 v, i;
-
-	v  = bios_rd32(bios, 0x00d610 + (gpio->line * 4));
-	v &= 0xffffff00;
-	v |= (gpio->entry & 0x00ff0000) >> 16;
-	bios_wr32(bios, 0x00d610 + (gpio->line * 4), v);
-
-	i = (gpio->entry & 0x1f000000) >> 24;
-	if (i) {
-		v  = bios_rd32(bios, 0x00d640 + ((i - 1) * 4));
-		v &= 0xffffff00;
-		v |= gpio->line;
-		bios_wr32(bios, 0x00d640 + ((i - 1) * 4), v);
-	}
-}
-
 static int
 init_gpio(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
 {
@@ -3282,35 +3137,8 @@ init_gpio(struct nvbios *bios, uint16_t offset, struct init_exec *iexec)
 	 * each GPIO according to various values listed in each entry
 	 */
 
-	struct drm_nouveau_private *dev_priv = bios->dev->dev_private;
-	struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
-	int i;
-
-	if (dev_priv->card_type < NV_50) {
-		NV_ERROR(bios->dev, "INIT_GPIO on unsupported chipset\n");
-		return 1;
-	}
-
-	if (!iexec->execute)
-		return 1;
-
-	for (i = 0; i < bios->dcb.gpio.entries; i++) {
-		struct dcb_gpio_entry *gpio = &bios->dcb.gpio.entry[i];
-
-		BIOSLOG(bios, "0x%04X: Entry: 0x%08X\n", offset, gpio->entry);
-
-		BIOSLOG(bios, "0x%04X: set gpio 0x%02x, state %d\n",
-			offset, gpio->tag, gpio->state_default);
-
-		if (!bios->execute)
-			continue;
-
-		pgpio->set(bios->dev, gpio->tag, gpio->state_default);
-		if (dev_priv->card_type < NV_D0)
-			init_gpio_unknv50(bios, gpio);
-		else
-			init_gpio_unknvd0(bios, gpio);
-	}
+	if (iexec->execute && bios->execute)
+		nouveau_gpio_reset(bios->dev);
 
 	return 1;
 }
@@ -4407,18 +4235,6 @@ int nouveau_bios_parse_lvds_table(struct drm_device *dev, int pxclk, bool *dl, b
 		break;
 	}
 
-	/* Dell Latitude D620 reports a too-high value for the dual-link
-	 * transition freq, causing us to program the panel incorrectly.
-	 *
-	 * It doesn't appear the VBIOS actually uses its transition freq
-	 * (90000kHz), instead it uses the "Number of LVDS channels" field
-	 * out of the panel ID structure (http://www.spwg.org/).
-	 *
-	 * For the moment, a quirk will do :)
-	 */
-	if (nv_match_device(dev, 0x01d7, 0x1028, 0x01c2))
-		bios->fp.duallink_transition_clk = 80000;
-
 	/* set dual_link flag for EDID case */
 	if (pxclk && (chip_version < 0x25 || chip_version > 0x28))
 		bios->fp.dual_link = (pxclk >= bios->fp.duallink_transition_clk);
@@ -4541,7 +4357,7 @@ nouveau_bios_run_display_table(struct drm_device *dev, u16 type, int pclk,
 	NV_DEBUG_KMS(dev, "Searching for output entry for %d %d %d\n",
 			dcbent->type, dcbent->location, dcbent->or);
 	for (i = 0; i < table[3]; i++) {
-		otable = ROMPTR(bios, table[table[1] + (i * table[2])]);
+		otable = ROMPTR(dev, table[table[1] + (i * table[2])]);
 		if (otable && bios_encoder_match(dcbent, ROM32(otable[0])))
 			break;
 	}
@@ -4719,7 +4535,7 @@ static struct pll_mapping nv84_pll_mapping[] = {
 	{ PLL_CORE  , 0x004028 },
 	{ PLL_SHADER, 0x004020 },
 	{ PLL_MEMORY, 0x004008 },
-	{ PLL_UNK05 , 0x004030 },
+	{ PLL_VDEC  , 0x004030 },
 	{ PLL_UNK41 , 0x00e818 },
 	{ PLL_VPLL0 , 0x614100 },
 	{ PLL_VPLL1 , 0x614900 },
@@ -5485,6 +5301,9 @@ bit_table(struct drm_device *dev, u8 id, struct bit_entry *bit)
 	struct nvbios *bios = &dev_priv->vbios;
 	u8 entries, *entry;
 
+	if (bios->type != NVBIOS_BIT)
+		return -ENODEV;
+
 	entries = bios->data[bios->offset + 10];
 	entry   = &bios->data[bios->offset + 12];
 	while (entries--) {
@@ -5493,7 +5312,7 @@ bit_table(struct drm_device *dev, u8 id, struct bit_entry *bit)
 			bit->version = entry[1];
 			bit->length = ROM16(entry[2]);
 			bit->offset = ROM16(entry[4]);
-			bit->data = ROMPTR(bios, entry[4]);
+			bit->data = ROMPTR(dev, entry[4]);
 			return 0;
 		}
 
@@ -5598,10 +5417,6 @@ static int parse_bmp_structure(struct drm_device *dev, struct nvbios *bios, unsi
 	uint16_t legacy_scripts_offset, legacy_i2c_offset;
 
 	/* load needed defaults in case we can't parse this info */
-	bios->dcb.i2c[0].write = NV_CIO_CRE_DDC_WR__INDEX;
-	bios->dcb.i2c[0].read = NV_CIO_CRE_DDC_STATUS__INDEX;
-	bios->dcb.i2c[1].write = NV_CIO_CRE_DDC0_WR__INDEX;
-	bios->dcb.i2c[1].read = NV_CIO_CRE_DDC0_STATUS__INDEX;
 	bios->digital_min_front_porch = 0x4b;
 	bios->fmaxvco = 256000;
 	bios->fminvco = 128000;
@@ -5709,14 +5524,6 @@ static int parse_bmp_structure(struct drm_device *dev, struct nvbios *bios, unsi
 	bios->legacy.i2c_indices.crt = bios->data[legacy_i2c_offset];
 	bios->legacy.i2c_indices.tv = bios->data[legacy_i2c_offset + 1];
 	bios->legacy.i2c_indices.panel = bios->data[legacy_i2c_offset + 2];
-	if (bios->data[legacy_i2c_offset + 4])
-		bios->dcb.i2c[0].write = bios->data[legacy_i2c_offset + 4];
-	if (bios->data[legacy_i2c_offset + 5])
-		bios->dcb.i2c[0].read = bios->data[legacy_i2c_offset + 5];
-	if (bios->data[legacy_i2c_offset + 6])
-		bios->dcb.i2c[1].write = bios->data[legacy_i2c_offset + 6];
-	if (bios->data[legacy_i2c_offset + 7])
-		bios->dcb.i2c[1].read = bios->data[legacy_i2c_offset + 7];
 
 	if (bmplength > 74) {
 		bios->fmaxvco = ROM32(bmp[67]);
@@ -5767,286 +5574,128 @@ static uint16_t findstr(uint8_t *data, int n, const uint8_t *str, int len)
 	return 0;
 }
 
-static struct dcb_gpio_entry *
-new_gpio_entry(struct nvbios *bios)
-{
-	struct drm_device *dev = bios->dev;
-	struct dcb_gpio_table *gpio = &bios->dcb.gpio;
-
-	if (gpio->entries >= DCB_MAX_NUM_GPIO_ENTRIES) {
-		NV_ERROR(dev, "exceeded maximum number of gpio entries!!\n");
-		return NULL;
-	}
-
-	return &gpio->entry[gpio->entries++];
-}
-
-struct dcb_gpio_entry *
-nouveau_bios_gpio_entry(struct drm_device *dev, enum dcb_gpio_tag tag)
+void *
+dcb_table(struct drm_device *dev)
 {
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nvbios *bios = &dev_priv->vbios;
-	int i;
-
-	for (i = 0; i < bios->dcb.gpio.entries; i++) {
-		if (bios->dcb.gpio.entry[i].tag != tag)
-			continue;
+	u8 *dcb = NULL;
 
-		return &bios->dcb.gpio.entry[i];
+	if (dev_priv->card_type > NV_04)
+		dcb = ROMPTR(dev, dev_priv->vbios.data[0x36]);
+	if (!dcb) {
+		NV_WARNONCE(dev, "No DCB data found in VBIOS\n");
+		return NULL;
 	}
 
-	return NULL;
-}
-
-static void
-parse_dcb_gpio_table(struct nvbios *bios)
-{
-	struct drm_device *dev = bios->dev;
-	struct dcb_gpio_entry *e;
-	u8 headerlen, entries, recordlen;
-	u8 *dcb, *gpio = NULL, *entry;
-	int i;
-
-	dcb = ROMPTR(bios, bios->data[0x36]);
+	if (dcb[0] >= 0x41) {
+		NV_WARNONCE(dev, "DCB version 0x%02x unknown\n", dcb[0]);
+		return NULL;
+	} else
 	if (dcb[0] >= 0x30) {
-		gpio = ROMPTR(bios, dcb[10]);
-		if (!gpio)
-			goto no_table;
-
-		headerlen = gpio[1];
-		entries   = gpio[2];
-		recordlen = gpio[3];
+		if (ROM32(dcb[6]) == 0x4edcbdcb)
+			return dcb;
 	} else
-	if (dcb[0] >= 0x22 && dcb[-1] >= 0x13) {
-		gpio = ROMPTR(bios, dcb[-15]);
-		if (!gpio)
-			goto no_table;
-
-		headerlen = 3;
-		entries   = gpio[2];
-		recordlen = gpio[1];
+	if (dcb[0] >= 0x20) {
+		if (ROM32(dcb[4]) == 0x4edcbdcb)
+			return dcb;
 	} else
-	if (dcb[0] >= 0x22) {
-		/* No GPIO table present, parse the TVDAC GPIO data. */
-		uint8_t *tvdac_gpio = &dcb[-5];
-
-		if (tvdac_gpio[0] & 1) {
-			e = new_gpio_entry(bios);
-			e->tag = DCB_GPIO_TVDAC0;
-			e->line = tvdac_gpio[1] >> 4;
-			e->invert = tvdac_gpio[0] & 2;
-		}
-
-		goto no_table;
+	if (dcb[0] >= 0x15) {
+		if (!memcmp(&dcb[-7], "DEV_REC", 7))
+			return dcb;
 	} else {
-		NV_DEBUG(dev, "no/unknown gpio table on DCB 0x%02x\n", dcb[0]);
-		goto no_table;
-	}
-
-	entry = gpio + headerlen;
-	for (i = 0; i < entries; i++, entry += recordlen) {
-		e = new_gpio_entry(bios);
-		if (!e)
-			break;
-
-		if (gpio[0] < 0x40) {
-			e->entry = ROM16(entry[0]);
-			e->tag = (e->entry & 0x07e0) >> 5;
-			if (e->tag == 0x3f) {
-				bios->dcb.gpio.entries--;
-				continue;
-			}
-
-			e->line = (e->entry & 0x001f);
-			e->invert = ((e->entry & 0xf800) >> 11) != 4;
-		} else {
-			e->entry = ROM32(entry[0]);
-			e->tag = (e->entry & 0x0000ff00) >> 8;
-			if (e->tag == 0xff) {
-				bios->dcb.gpio.entries--;
-				continue;
-			}
-
-			e->line = (e->entry & 0x0000001f) >> 0;
-			if (gpio[0] == 0x40) {
-				e->state_default = (e->entry & 0x01000000) >> 24;
-				e->state[0] = (e->entry & 0x18000000) >> 27;
-				e->state[1] = (e->entry & 0x60000000) >> 29;
-			} else {
-				e->state_default = (e->entry & 0x00000080) >> 7;
-				e->state[0] = (entry[4] >> 4) & 3;
-				e->state[1] = (entry[4] >> 6) & 3;
-			}
-		}
-	}
-
-no_table:
-	/* Apple iMac G4 NV18 */
-	if (nv_match_device(dev, 0x0189, 0x10de, 0x0010)) {
-		e = new_gpio_entry(bios);
-		if (e) {
-			e->tag = DCB_GPIO_TVDAC0;
-			e->line = 4;
-		}
-	}
-}
-
-struct dcb_connector_table_entry *
-nouveau_bios_connector_entry(struct drm_device *dev, int index)
-{
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nvbios *bios = &dev_priv->vbios;
-	struct dcb_connector_table_entry *cte;
-
-	if (index >= bios->dcb.connector.entries)
-		return NULL;
-
-	cte = &bios->dcb.connector.entry[index];
-	if (cte->type == 0xff)
+		/*
+		 * v1.4 (some NV15/16, NV11+) seems the same as v1.5, but
+		 * always has the same single (crt) entry, even when tv-out
+		 * present, so the conclusion is this version cannot really
+		 * be used.
+		 *
+		 * v1.2 tables (some NV6/10, and NV15+) normally have the
+		 * same 5 entries, which are not specific to the card and so
+		 * no use.
+		 *
+		 * v1.2 does have an I2C table that read_dcb_i2c_table can
+		 * handle, but cards exist (nv11 in #14821) with a bad i2c
+		 * table pointer, so use the indices parsed in
+		 * parse_bmp_structure.
+		 *
+		 * v1.1 (NV5+, maybe some NV4) is entirely unhelpful
+		 */
+		NV_WARNONCE(dev, "No useful DCB data in VBIOS\n");
 		return NULL;
+	}
 
-	return cte;
+	NV_WARNONCE(dev, "DCB header validation failed\n");
+	return NULL;
 }
 
-static enum dcb_connector_type
-divine_connector_type(struct nvbios *bios, int index)
+void *
+dcb_outp(struct drm_device *dev, u8 idx)
 {
-	struct dcb_table *dcb = &bios->dcb;
-	unsigned encoders = 0, type = DCB_CONNECTOR_NONE;
-	int i;
-
-	for (i = 0; i < dcb->entries; i++) {
-		if (dcb->entry[i].connector == index)
-			encoders |= (1 << dcb->entry[i].type);
-	}
-
-	if (encoders & (1 << OUTPUT_DP)) {
-		if (encoders & (1 << OUTPUT_TMDS))
-			type = DCB_CONNECTOR_DP;
-		else
-			type = DCB_CONNECTOR_eDP;
-	} else
-	if (encoders & (1 << OUTPUT_TMDS)) {
-		if (encoders & (1 << OUTPUT_ANALOG))
-			type = DCB_CONNECTOR_DVI_I;
-		else
-			type = DCB_CONNECTOR_DVI_D;
-	} else
-	if (encoders & (1 << OUTPUT_ANALOG)) {
-		type = DCB_CONNECTOR_VGA;
+	u8 *dcb = dcb_table(dev);
+	if (dcb && dcb[0] >= 0x30) {
+		if (idx < dcb[2])
+			return dcb + dcb[1] + (idx * dcb[3]);
 	} else
-	if (encoders & (1 << OUTPUT_LVDS)) {
-		type = DCB_CONNECTOR_LVDS;
+	if (dcb && dcb[0] >= 0x20) {
+		u8 *i2c = ROMPTR(dev, dcb[2]);
+		u8 *ent = dcb + 8 + (idx * 8);
+		if (i2c && ent < i2c)
+			return ent;
 	} else
-	if (encoders & (1 << OUTPUT_TV)) {
-		type = DCB_CONNECTOR_TV_0;
+	if (dcb && dcb[0] >= 0x15) {
+		u8 *i2c = ROMPTR(dev, dcb[2]);
+		u8 *ent = dcb + 4 + (idx * 10);
+		if (i2c && ent < i2c)
+			return ent;
 	}
 
-	return type;
+	return NULL;
 }
 
-static void
-apply_dcb_connector_quirks(struct nvbios *bios, int idx)
-{
-	struct dcb_connector_table_entry *cte = &bios->dcb.connector.entry[idx];
-	struct drm_device *dev = bios->dev;
+int
+dcb_outp_foreach(struct drm_device *dev, void *data,
+		 int (*exec)(struct drm_device *, void *, int idx, u8 *outp))
+{
+	int ret, idx = -1;
+	u8 *outp = NULL;
+	while ((outp = dcb_outp(dev, ++idx))) {
+		if (ROM32(outp[0]) == 0x00000000)
+			break; /* seen on an NV11 with DCB v1.5 */
+		if (ROM32(outp[0]) == 0xffffffff)
+			break; /* seen on an NV17 with DCB v2.0 */
+
+		if ((outp[0] & 0x0f) == OUTPUT_UNUSED)
+			continue;
+		if ((outp[0] & 0x0f) == OUTPUT_EOL)
+			break;
 
-	/* Gigabyte NX85T */
-	if (nv_match_device(dev, 0x0421, 0x1458, 0x344c)) {
-		if (cte->type == DCB_CONNECTOR_HDMI_1)
-			cte->type = DCB_CONNECTOR_DVI_I;
+		ret = exec(dev, data, idx, outp);
+		if (ret)
+			return ret;
 	}
 
-	/* Gigabyte GV-NX86T512H */
-	if (nv_match_device(dev, 0x0402, 0x1458, 0x3455)) {
-		if (cte->type == DCB_CONNECTOR_HDMI_1)
-			cte->type = DCB_CONNECTOR_DVI_I;
-	}
+	return 0;
 }
 
-static const u8 hpd_gpio[16] = {
-	0xff, 0x07, 0x08, 0xff, 0xff, 0x51, 0x52, 0xff,
-	0xff, 0xff, 0xff, 0xff, 0xff, 0x5e, 0x5f, 0x60,
-};
-
-static void
-parse_dcb_connector_table(struct nvbios *bios)
+u8 *
+dcb_conntab(struct drm_device *dev)
 {
-	struct drm_device *dev = bios->dev;
-	struct dcb_connector_table *ct = &bios->dcb.connector;
-	struct dcb_connector_table_entry *cte;
-	uint8_t *conntab = &bios->data[bios->dcb.connector_table_ptr];
-	uint8_t *entry;
-	int i;
-
-	if (!bios->dcb.connector_table_ptr) {
-		NV_DEBUG_KMS(dev, "No DCB connector table present\n");
-		return;
-	}
-
-	NV_INFO(dev, "DCB connector table: VHER 0x%02x %d %d %d\n",
-		conntab[0], conntab[1], conntab[2], conntab[3]);
-	if ((conntab[0] != 0x30 && conntab[0] != 0x40) ||
-	    (conntab[3] != 2 && conntab[3] != 4)) {
-		NV_ERROR(dev, "  Unknown!  Please report.\n");
-		return;
+	u8 *dcb = dcb_table(dev);
+	if (dcb && dcb[0] >= 0x30 && dcb[1] >= 0x16) {
+		u8 *conntab = ROMPTR(dev, dcb[0x14]);
+		if (conntab && conntab[0] >= 0x30 && conntab[0] <= 0x40)
+			return conntab;
 	}
+	return NULL;
+}
 
-	ct->entries = conntab[2];
-
-	entry = conntab + conntab[1];
-	cte = &ct->entry[0];
-	for (i = 0; i < conntab[2]; i++, entry += conntab[3], cte++) {
-		cte->index = i;
-		if (conntab[3] == 2)
-			cte->entry = ROM16(entry[0]);
-		else
-			cte->entry = ROM32(entry[0]);
-
-		cte->type  = (cte->entry & 0x000000ff) >> 0;
-		cte->index2 = (cte->entry & 0x00000f00) >> 8;
-
-		cte->gpio_tag = ffs((cte->entry & 0x07033000) >> 12);
-		cte->gpio_tag = hpd_gpio[cte->gpio_tag];
-
-		if (cte->type == 0xff)
-			continue;
-
-		apply_dcb_connector_quirks(bios, i);
-
-		NV_INFO(dev, "  %d: 0x%08x: type 0x%02x idx %d tag 0x%02x\n",
-			i, cte->entry, cte->type, cte->index, cte->gpio_tag);
-
-		/* check for known types, fallback to guessing the type
-		 * from attached encoders if we hit an unknown.
-		 */
-		switch (cte->type) {
-		case DCB_CONNECTOR_VGA:
-		case DCB_CONNECTOR_TV_0:
-		case DCB_CONNECTOR_TV_1:
-		case DCB_CONNECTOR_TV_3:
-		case DCB_CONNECTOR_DVI_I:
-		case DCB_CONNECTOR_DVI_D:
-		case DCB_CONNECTOR_LVDS:
-		case DCB_CONNECTOR_LVDS_SPWG:
-		case DCB_CONNECTOR_DP:
-		case DCB_CONNECTOR_eDP:
-		case DCB_CONNECTOR_HDMI_0:
-		case DCB_CONNECTOR_HDMI_1:
-			break;
-		default:
-			cte->type = divine_connector_type(bios, cte->index);
-			NV_WARN(dev, "unknown type, using 0x%02x\n", cte->type);
-			break;
-		}
-
-		if (nouveau_override_conntype) {
-			int type = divine_connector_type(bios, cte->index);
-			if (type != cte->type)
-				NV_WARN(dev, " -> type 0x%02x\n", cte->type);
-		}
-
-	}
+u8 *
+dcb_conn(struct drm_device *dev, u8 idx)
+{
+	u8 *conntab = dcb_conntab(dev);
+	if (conntab && idx < conntab[2])
+		return conntab + conntab[1] + (idx * conntab[3]);
+	return NULL;
 }
 
 static struct dcb_entry *new_dcb_entry(struct dcb_table *dcb)
@@ -6079,8 +5728,7 @@ parse_dcb20_entry(struct drm_device *dev, struct dcb_table *dcb,
 	entry->type = conn & 0xf;
 	entry->i2c_index = (conn >> 4) & 0xf;
 	entry->heads = (conn >> 8) & 0xf;
-	if (dcb->version >= 0x40)
-		entry->connector = (conn >> 12) & 0xf;
+	entry->connector = (conn >> 12) & 0xf;
 	entry->bus = (conn >> 16) & 0xf;
 	entry->location = (conn >> 20) & 0x3;
 	entry->or = (conn >> 24) & 0xf;
@@ -6252,25 +5900,6 @@ parse_dcb15_entry(struct drm_device *dev, struct dcb_table *dcb,
 	return true;
 }
 
-static bool parse_dcb_entry(struct drm_device *dev, struct dcb_table *dcb,
-			    uint32_t conn, uint32_t conf)
-{
-	struct dcb_entry *entry = new_dcb_entry(dcb);
-	bool ret;
-
-	if (dcb->version >= 0x20)
-		ret = parse_dcb20_entry(dev, dcb, conn, conf, entry);
-	else
-		ret = parse_dcb15_entry(dev, dcb, conn, conf, entry);
-	if (!ret)
-		return ret;
-
-	read_dcb_i2c_entry(dev, dcb->version, dcb->i2c_table,
-			   entry->i2c_index, &dcb->i2c[entry->i2c_index]);
-
-	return true;
-}
-
 static
 void merge_like_dcb_entries(struct drm_device *dev, struct dcb_table *dcb)
 {
@@ -6431,154 +6060,118 @@ fabricate_dcb_encoder_table(struct drm_device *dev, struct nvbios *bios)
 #endif
 
 	/* Make up some sane defaults */
-	fabricate_dcb_output(dcb, OUTPUT_ANALOG, LEGACY_I2C_CRT, 1, 1);
+	fabricate_dcb_output(dcb, OUTPUT_ANALOG,
+			     bios->legacy.i2c_indices.crt, 1, 1);
 
 	if (nv04_tv_identify(dev, bios->legacy.i2c_indices.tv) >= 0)
-		fabricate_dcb_output(dcb, OUTPUT_TV, LEGACY_I2C_TV,
+		fabricate_dcb_output(dcb, OUTPUT_TV,
+				     bios->legacy.i2c_indices.tv,
 				     all_heads, 0);
 
 	else if (bios->tmds.output0_script_ptr ||
 		 bios->tmds.output1_script_ptr)
-		fabricate_dcb_output(dcb, OUTPUT_TMDS, LEGACY_I2C_PANEL,
+		fabricate_dcb_output(dcb, OUTPUT_TMDS,
+				     bios->legacy.i2c_indices.panel,
 				     all_heads, 1);
 }
 
 static int
-parse_dcb_table(struct drm_device *dev, struct nvbios *bios)
+parse_dcb_entry(struct drm_device *dev, void *data, int idx, u8 *outp)
 {
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct dcb_table *dcb = &bios->dcb;
-	uint16_t dcbptr = 0, i2ctabptr = 0;
-	uint8_t *dcbtable;
-	uint8_t headerlen = 0x4, entries = DCB_MAX_NUM_ENTRIES;
-	bool configblock = true;
-	int recordlength = 8, confofs = 4;
-	int i;
-
-	/* get the offset from 0x36 */
-	if (dev_priv->card_type > NV_04) {
-		dcbptr = ROM16(bios->data[0x36]);
-		if (dcbptr == 0x0000)
-			NV_WARN(dev, "No output data (DCB) found in BIOS\n");
-	}
-
-	/* this situation likely means a really old card, pre DCB */
-	if (dcbptr == 0x0) {
-		fabricate_dcb_encoder_table(dev, bios);
-		return 0;
-	}
-
-	dcbtable = &bios->data[dcbptr];
-
-	/* get DCB version */
-	dcb->version = dcbtable[0];
-	NV_TRACE(dev, "Found Display Configuration Block version %d.%d\n",
-		 dcb->version >> 4, dcb->version & 0xf);
-
-	if (dcb->version >= 0x20) { /* NV17+ */
-		uint32_t sig;
+	struct dcb_table *dcb = &dev_priv->vbios.dcb;
+	u32 conf = (dcb->version >= 0x20) ? ROM32(outp[4]) : ROM32(outp[6]);
+	u32 conn = ROM32(outp[0]);
+	bool ret;
 
-		if (dcb->version >= 0x30) { /* NV40+ */
-			headerlen = dcbtable[1];
-			entries = dcbtable[2];
-			recordlength = dcbtable[3];
-			i2ctabptr = ROM16(dcbtable[4]);
-			sig = ROM32(dcbtable[6]);
-			dcb->gpio_table_ptr = ROM16(dcbtable[10]);
-			dcb->connector_table_ptr = ROM16(dcbtable[20]);
-		} else {
-			i2ctabptr = ROM16(dcbtable[2]);
-			sig = ROM32(dcbtable[4]);
-			headerlen = 8;
-		}
+	if (apply_dcb_encoder_quirks(dev, idx, &conn, &conf)) {
+		struct dcb_entry *entry = new_dcb_entry(dcb);
 
-		if (sig != 0x4edcbdcb) {
-			NV_ERROR(dev, "Bad Display Configuration Block "
-					"signature (%08X)\n", sig);
-			return -EINVAL;
-		}
-	} else if (dcb->version >= 0x15) { /* some NV11 and NV20 */
-		char sig[8] = { 0 };
+		NV_TRACEWARN(dev, "DCB outp %02d: %08x %08x\n", idx, conn, conf);
 
-		strncpy(sig, (char *)&dcbtable[-7], 7);
-		i2ctabptr = ROM16(dcbtable[2]);
-		recordlength = 10;
-		confofs = 6;
+		if (dcb->version >= 0x20)
+			ret = parse_dcb20_entry(dev, dcb, conn, conf, entry);
+		else
+			ret = parse_dcb15_entry(dev, dcb, conn, conf, entry);
+		if (!ret)
+			return 1; /* stop parsing */
 
-		if (strcmp(sig, "DEV_REC")) {
-			NV_ERROR(dev, "Bad Display Configuration Block "
-					"signature (%s)\n", sig);
-			return -EINVAL;
-		}
-	} else {
-		/*
-		 * v1.4 (some NV15/16, NV11+) seems the same as v1.5, but always
-		 * has the same single (crt) entry, even when tv-out present, so
-		 * the conclusion is this version cannot really be used.
-		 * v1.2 tables (some NV6/10, and NV15+) normally have the same
-		 * 5 entries, which are not specific to the card and so no use.
-		 * v1.2 does have an I2C table that read_dcb_i2c_table can
-		 * handle, but cards exist (nv11 in #14821) with a bad i2c table
-		 * pointer, so use the indices parsed in parse_bmp_structure.
-		 * v1.1 (NV5+, maybe some NV4) is entirely unhelpful
+		/* Ignore the I2C index for on-chip TV-out, as there
+		 * are cards with bogus values (nv31m in bug 23212),
+		 * and it's otherwise useless.
 		 */
-		NV_TRACEWARN(dev, "No useful information in BIOS output table; "
-				  "adding all possible outputs\n");
-		fabricate_dcb_encoder_table(dev, bios);
-		return 0;
+		if (entry->type == OUTPUT_TV &&
+		    entry->location == DCB_LOC_ON_CHIP)
+			entry->i2c_index = 0x0f;
 	}
 
-	if (!i2ctabptr)
-		NV_WARN(dev, "No pointer to DCB I2C port table\n");
-	else {
-		dcb->i2c_table = &bios->data[i2ctabptr];
-		if (dcb->version >= 0x30)
-			dcb->i2c_default_indices = dcb->i2c_table[4];
+	return 0;
+}
 
-		/*
-		 * Parse the "management" I2C bus, used for hardware
-		 * monitoring and some external TMDS transmitters.
-		 */
-		if (dcb->version >= 0x22) {
-			int idx = (dcb->version >= 0x40 ?
-				   dcb->i2c_default_indices & 0xf :
-				   2);
+static void
+dcb_fake_connectors(struct nvbios *bios)
+{
+	struct dcb_table *dcbt = &bios->dcb;
+	u8 map[16] = { };
+	int i, idx = 0;
 
-			read_dcb_i2c_entry(dev, dcb->version, dcb->i2c_table,
-					   idx, &dcb->i2c[idx]);
-		}
+	/* heuristic: if we ever get a non-zero connector field, assume
+	 * that all the indices are valid and we don't need fake them.
+	 */
+	for (i = 0; i < dcbt->entries; i++) {
+		if (dcbt->entry[i].connector)
+			return;
 	}
 
-	if (entries > DCB_MAX_NUM_ENTRIES)
-		entries = DCB_MAX_NUM_ENTRIES;
-
-	for (i = 0; i < entries; i++) {
-		uint32_t connection, config = 0;
-
-		connection = ROM32(dcbtable[headerlen + recordlength * i]);
-		if (configblock)
-			config = ROM32(dcbtable[headerlen + confofs + recordlength * i]);
-
-		/* seen on an NV11 with DCB v1.5 */
-		if (connection == 0x00000000)
-			break;
+	/* no useful connector info available, we need to make it up
+	 * ourselves.  the rule here is: anything on the same i2c bus
+	 * is considered to be on the same connector.  any output
+	 * without an associated i2c bus is assigned its own unique
+	 * connector index.
+	 */
+	for (i = 0; i < dcbt->entries; i++) {
+		u8 i2c = dcbt->entry[i].i2c_index;
+		if (i2c == 0x0f) {
+			dcbt->entry[i].connector = idx++;
+		} else {
+			if (!map[i2c])
+				map[i2c] = ++idx;
+			dcbt->entry[i].connector = map[i2c] - 1;
+		}
+	}
 
-		/* seen on an NV17 with DCB v2.0 */
-		if (connection == 0xffffffff)
-			break;
+	/* if we created more than one connector, destroy the connector
+	 * table - just in case it has random, rather than stub, entries.
+	 */
+	if (i > 1) {
+		u8 *conntab = dcb_conntab(bios->dev);
+		if (conntab)
+			conntab[0] = 0x00;
+	}
+}
 
-		if ((connection & 0x0000000f) == 0x0000000f)
-			continue;
+static int
+parse_dcb_table(struct drm_device *dev, struct nvbios *bios)
+{
+	struct dcb_table *dcb = &bios->dcb;
+	u8 *dcbt, *conn;
+	int idx;
+
+	dcbt = dcb_table(dev);
+	if (!dcbt) {
+		/* handle pre-DCB boards */
+		if (bios->type == NVBIOS_BMP) {
+			fabricate_dcb_encoder_table(dev, bios);
+			return 0;
+		}
 
-		if (!apply_dcb_encoder_quirks(dev, i, &connection, &config))
-			continue;
+		return -EINVAL;
+	}
 
-		NV_TRACEWARN(dev, "Raw DCB entry %d: %08x %08x\n",
-			     dcb->entries, connection, config);
+	NV_TRACE(dev, "DCB version %d.%d\n", dcbt[0] >> 4, dcbt[0] & 0xf);
 
-		if (!parse_dcb_entry(dev, dcb, connection, config))
-			break;
-	}
+	dcb->version = dcbt[0];
+	dcb_outp_foreach(dev, NULL, parse_dcb_entry);
 
 	/*
 	 * apart for v2.1+ not being known for requiring merging, this
@@ -6590,77 +6183,19 @@ parse_dcb_table(struct drm_device *dev, struct nvbios *bios)
 	if (!dcb->entries)
 		return -ENXIO;
 
-	parse_dcb_gpio_table(bios);
-	parse_dcb_connector_table(bios);
-	return 0;
-}
-
-static void
-fixup_legacy_connector(struct nvbios *bios)
-{
-	struct dcb_table *dcb = &bios->dcb;
-	int i, i2c, i2c_conn[DCB_MAX_NUM_I2C_ENTRIES] = { };
-
-	/*
-	 * DCB 3.0 also has the table in most cases, but there are some cards
-	 * where the table is filled with stub entries, and the DCB entriy
-	 * indices are all 0.  We don't need the connector indices on pre-G80
-	 * chips (yet?) so limit the use to DCB 4.0 and above.
-	 */
-	if (dcb->version >= 0x40)
-		return;
-
-	dcb->connector.entries = 0;
-
-	/*
-	 * No known connector info before v3.0, so make it up.  the rule here
-	 * is: anything on the same i2c bus is considered to be on the same
-	 * connector.  any output without an associated i2c bus is assigned
-	 * its own unique connector index.
-	 */
-	for (i = 0; i < dcb->entries; i++) {
-		/*
-		 * Ignore the I2C index for on-chip TV-out, as there
-		 * are cards with bogus values (nv31m in bug 23212),
-		 * and it's otherwise useless.
-		 */
-		if (dcb->entry[i].type == OUTPUT_TV &&
-		    dcb->entry[i].location == DCB_LOC_ON_CHIP)
-			dcb->entry[i].i2c_index = 0xf;
-		i2c = dcb->entry[i].i2c_index;
-
-		if (i2c_conn[i2c]) {
-			dcb->entry[i].connector = i2c_conn[i2c] - 1;
-			continue;
+	/* dump connector table entries to log, if any exist */
+	idx = -1;
+	while ((conn = dcb_conn(dev, ++idx))) {
+		if (conn[0] != 0xff) {
+			NV_TRACE(dev, "DCB conn %02d: ", idx);
+			if (dcb_conntab(dev)[3] < 4)
+				printk("%04x\n", ROM16(conn[0]));
+			else
+				printk("%08x\n", ROM32(conn[0]));
 		}
-
-		dcb->entry[i].connector = dcb->connector.entries++;
-		if (i2c != 0xf)
-			i2c_conn[i2c] = dcb->connector.entries;
-	}
-
-	/* Fake the connector table as well as just connector indices */
-	for (i = 0; i < dcb->connector.entries; i++) {
-		dcb->connector.entry[i].index = i;
-		dcb->connector.entry[i].type = divine_connector_type(bios, i);
-		dcb->connector.entry[i].gpio_tag = 0xff;
-	}
-}
-
-static void
-fixup_legacy_i2c(struct nvbios *bios)
-{
-	struct dcb_table *dcb = &bios->dcb;
-	int i;
-
-	for (i = 0; i < dcb->entries; i++) {
-		if (dcb->entry[i].i2c_index == LEGACY_I2C_CRT)
-			dcb->entry[i].i2c_index = bios->legacy.i2c_indices.crt;
-		if (dcb->entry[i].i2c_index == LEGACY_I2C_PANEL)
-			dcb->entry[i].i2c_index = bios->legacy.i2c_indices.panel;
-		if (dcb->entry[i].i2c_index == LEGACY_I2C_TV)
-			dcb->entry[i].i2c_index = bios->legacy.i2c_indices.tv;
 	}
+	dcb_fake_connectors(bios);
+	return 0;
 }
 
 static int load_nv17_hwsq_ucode_entry(struct drm_device *dev, struct nvbios *bios, uint16_t hwsq_offset, int entry)
@@ -6879,19 +6414,6 @@ nouveau_run_vbios_init(struct drm_device *dev)
 	return ret;
 }
 
-static void
-nouveau_bios_i2c_devices_takedown(struct drm_device *dev)
-{
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nvbios *bios = &dev_priv->vbios;
-	struct dcb_i2c_entry *entry;
-	int i;
-
-	entry = &bios->dcb.i2c[0];
-	for (i = 0; i < DCB_MAX_NUM_I2C_ENTRIES; i++, entry++)
-		nouveau_i2c_fini(dev, entry);
-}
-
 static bool
 nouveau_bios_posted(struct drm_device *dev)
 {
@@ -6928,12 +6450,17 @@ nouveau_bios_init(struct drm_device *dev)
 	if (ret)
 		return ret;
 
-	ret = parse_dcb_table(dev, bios);
+	ret = nouveau_i2c_init(dev);
 	if (ret)
 		return ret;
 
-	fixup_legacy_i2c(bios);
-	fixup_legacy_connector(bios);
+	ret = nouveau_mxm_init(dev);
+	if (ret)
+		return ret;
+
+	ret = parse_dcb_table(dev, bios);
+	if (ret)
+		return ret;
 
 	if (!bios->major_version)	/* we don't run version 0 bios */
 		return 0;
@@ -6971,5 +6498,6 @@ nouveau_bios_init(struct drm_device *dev)
 void
 nouveau_bios_takedown(struct drm_device *dev)
 {
-	nouveau_bios_i2c_devices_takedown(dev);
+	nouveau_mxm_fini(dev);
+	nouveau_i2c_fini(dev);
 }
diff --git a/drivers/gpu/drm/nouveau/nouveau_bios.h b/drivers/gpu/drm/nouveau/nouveau_bios.h
index 8adb69e4a6b1..1e382ad5a2b8 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bios.h
+++ b/drivers/gpu/drm/nouveau/nouveau_bios.h
@@ -34,9 +34,14 @@
 
 #define DCB_LOC_ON_CHIP 0
 
-#define ROM16(x) le16_to_cpu(*(uint16_t *)&(x))
-#define ROM32(x) le32_to_cpu(*(uint32_t *)&(x))
-#define ROMPTR(bios, x) (ROM16(x) ? &(bios)->data[ROM16(x)] : NULL)
+#define ROM16(x) le16_to_cpu(*(u16 *)&(x))
+#define ROM32(x) le32_to_cpu(*(u32 *)&(x))
+#define ROM48(x) ({ u8 *p = &(x); (u64)ROM16(p[4]) << 32 | ROM32(p[0]); })
+#define ROM64(x) le64_to_cpu(*(u64 *)&(x))
+#define ROMPTR(d,x) ({            \
+	struct drm_nouveau_private *dev_priv = (d)->dev_private; \
+	ROM16(x) ? &dev_priv->vbios.data[ROM16(x)] : NULL; \
+})
 
 struct bit_entry {
 	uint8_t  id;
@@ -48,30 +53,12 @@ struct bit_entry {
 
 int bit_table(struct drm_device *, u8 id, struct bit_entry *);
 
-struct dcb_i2c_entry {
-	uint32_t entry;
-	uint8_t port_type;
-	uint8_t read, write;
-	struct nouveau_i2c_chan *chan;
-};
-
 enum dcb_gpio_tag {
 	DCB_GPIO_TVDAC0 = 0xc,
 	DCB_GPIO_TVDAC1 = 0x2d,
-};
-
-struct dcb_gpio_entry {
-	enum dcb_gpio_tag tag;
-	int line;
-	bool invert;
-	uint32_t entry;
-	uint8_t state_default;
-	uint8_t state[2];
-};
-
-struct dcb_gpio_table {
-	int entries;
-	struct dcb_gpio_entry entry[DCB_MAX_NUM_GPIO_ENTRIES];
+	DCB_GPIO_PWM_FAN = 0x9,
+	DCB_GPIO_FAN_SENSE = 0x3d,
+	DCB_GPIO_UNUSED = 0xff
 };
 
 enum dcb_connector_type {
@@ -90,20 +77,6 @@ enum dcb_connector_type {
 	DCB_CONNECTOR_NONE = 0xff
 };
 
-struct dcb_connector_table_entry {
-	uint8_t index;
-	uint32_t entry;
-	enum dcb_connector_type type;
-	uint8_t index2;
-	uint8_t gpio_tag;
-	void *drm;
-};
-
-struct dcb_connector_table {
-	int entries;
-	struct dcb_connector_table_entry entry[DCB_MAX_NUM_CONNECTOR_ENTRIES];
-};
-
 enum dcb_type {
 	OUTPUT_ANALOG = 0,
 	OUTPUT_TV = 1,
@@ -111,6 +84,7 @@ enum dcb_type {
 	OUTPUT_LVDS = 3,
 	OUTPUT_DP = 6,
 	OUTPUT_EOL = 14, /* DCB 4.0+, appears to be end-of-list */
+	OUTPUT_UNUSED = 15,
 	OUTPUT_ANY = -1
 };
 
@@ -155,18 +129,8 @@ struct dcb_entry {
 
 struct dcb_table {
 	uint8_t version;
-
 	int entries;
 	struct dcb_entry entry[DCB_MAX_NUM_ENTRIES];
-
-	uint8_t *i2c_table;
-	uint8_t i2c_default_indices;
-	struct dcb_i2c_entry i2c[DCB_MAX_NUM_I2C_ENTRIES];
-
-	uint16_t gpio_table_ptr;
-	struct dcb_gpio_table gpio;
-	uint16_t connector_table_ptr;
-	struct dcb_connector_table connector;
 };
 
 enum nouveau_or {
@@ -195,7 +159,7 @@ enum pll_types {
 	PLL_SHADER = 0x02,
 	PLL_UNK03  = 0x03,
 	PLL_MEMORY = 0x04,
-	PLL_UNK05  = 0x05,
+	PLL_VDEC   = 0x05,
 	PLL_UNK40  = 0x40,
 	PLL_UNK41  = 0x41,
 	PLL_UNK42  = 0x42,
@@ -333,4 +297,11 @@ struct nvbios {
 	} legacy;
 };
 
+void *dcb_table(struct drm_device *);
+void *dcb_outp(struct drm_device *, u8 idx);
+int dcb_outp_foreach(struct drm_device *, void *data,
+		     int (*)(struct drm_device *, void *, int idx, u8 *outp));
+u8 *dcb_conntab(struct drm_device *);
+u8 *dcb_conn(struct drm_device *, u8 idx);
+
 #endif
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
index 7cc37e690860..724b41a2b9e9 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -28,6 +28,7 @@
  */
 
 #include "drmP.h"
+#include "ttm/ttm_page_alloc.h"
 
 #include "nouveau_drm.h"
 #include "nouveau_drv.h"
@@ -92,6 +93,7 @@ nouveau_bo_new(struct drm_device *dev, int size, int align,
 {
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
 	struct nouveau_bo *nvbo;
+	size_t acc_size;
 	int ret;
 
 	nvbo = kzalloc(sizeof(struct nouveau_bo), GFP_KERNEL);
@@ -114,9 +116,12 @@ nouveau_bo_new(struct drm_device *dev, int size, int align,
 	nvbo->bo.mem.num_pages = size >> PAGE_SHIFT;
 	nouveau_bo_placement_set(nvbo, flags, 0);
 
+	acc_size = ttm_bo_dma_acc_size(&dev_priv->ttm.bdev, size,
+				       sizeof(struct nouveau_bo));
+
 	ret = ttm_bo_init(&dev_priv->ttm.bdev, &nvbo->bo, size,
 			  ttm_bo_type_device, &nvbo->placement,
-			  align >> PAGE_SHIFT, 0, false, NULL, size,
+			  align >> PAGE_SHIFT, 0, false, NULL, acc_size,
 			  nouveau_bo_del_ttm);
 	if (ret) {
 		/* ttm will call nouveau_bo_del_ttm if it fails.. */
@@ -343,8 +348,10 @@ nouveau_bo_wr32(struct nouveau_bo *nvbo, unsigned index, u32 val)
 		*mem = val;
 }
 
-static struct ttm_backend *
-nouveau_bo_create_ttm_backend_entry(struct ttm_bo_device *bdev)
+static struct ttm_tt *
+nouveau_ttm_tt_create(struct ttm_bo_device *bdev,
+		      unsigned long size, uint32_t page_flags,
+		      struct page *dummy_read_page)
 {
 	struct drm_nouveau_private *dev_priv = nouveau_bdev(bdev);
 	struct drm_device *dev = dev_priv->dev;
@@ -352,11 +359,13 @@ nouveau_bo_create_ttm_backend_entry(struct ttm_bo_device *bdev)
 	switch (dev_priv->gart_info.type) {
 #if __OS_HAS_AGP
 	case NOUVEAU_GART_AGP:
-		return ttm_agp_backend_init(bdev, dev->agp->bridge);
+		return ttm_agp_tt_create(bdev, dev->agp->bridge,
+					 size, page_flags, dummy_read_page);
 #endif
 	case NOUVEAU_GART_PDMA:
 	case NOUVEAU_GART_HW:
-		return nouveau_sgdma_init_ttm(dev);
+		return nouveau_sgdma_create_ttm(bdev, size, page_flags,
+						dummy_read_page);
 	default:
 		NV_ERROR(dev, "Unknown GART type %d\n",
 			 dev_priv->gart_info.type);
@@ -673,8 +682,7 @@ nouveau_vma_getmap(struct nouveau_channel *chan, struct nouveau_bo *nvbo,
 	if (mem->mem_type == TTM_PL_VRAM)
 		nouveau_vm_map(vma, node);
 	else
-		nouveau_vm_map_sg(vma, 0, mem->num_pages << PAGE_SHIFT,
-				  node, node->pages);
+		nouveau_vm_map_sg(vma, 0, mem->num_pages << PAGE_SHIFT, node);
 
 	return 0;
 }
@@ -801,19 +809,18 @@ out:
 static void
 nouveau_bo_move_ntfy(struct ttm_buffer_object *bo, struct ttm_mem_reg *new_mem)
 {
-	struct nouveau_mem *node = new_mem->mm_node;
 	struct nouveau_bo *nvbo = nouveau_bo(bo);
 	struct nouveau_vma *vma;
 
 	list_for_each_entry(vma, &nvbo->vma_list, head) {
-		if (new_mem->mem_type == TTM_PL_VRAM) {
+		if (new_mem && new_mem->mem_type == TTM_PL_VRAM) {
 			nouveau_vm_map(vma, new_mem->mm_node);
 		} else
-		if (new_mem->mem_type == TTM_PL_TT &&
+		if (new_mem && new_mem->mem_type == TTM_PL_TT &&
 		    nvbo->page_shift == vma->vm->spg_shift) {
 			nouveau_vm_map_sg(vma, 0, new_mem->
 					  num_pages << PAGE_SHIFT,
-					  node, node->pages);
+					  new_mem->mm_node);
 		} else {
 			nouveau_vm_unmap(vma);
 		}
@@ -1044,8 +1051,94 @@ nouveau_bo_fence(struct nouveau_bo *nvbo, struct nouveau_fence *fence)
 	nouveau_fence_unref(&old_fence);
 }
 
+static int
+nouveau_ttm_tt_populate(struct ttm_tt *ttm)
+{
+	struct ttm_dma_tt *ttm_dma = (void *)ttm;
+	struct drm_nouveau_private *dev_priv;
+	struct drm_device *dev;
+	unsigned i;
+	int r;
+
+	if (ttm->state != tt_unpopulated)
+		return 0;
+
+	dev_priv = nouveau_bdev(ttm->bdev);
+	dev = dev_priv->dev;
+
+#if __OS_HAS_AGP
+	if (dev_priv->gart_info.type == NOUVEAU_GART_AGP) {
+		return ttm_agp_tt_populate(ttm);
+	}
+#endif
+
+#ifdef CONFIG_SWIOTLB
+	if (swiotlb_nr_tbl()) {
+		return ttm_dma_populate((void *)ttm, dev->dev);
+	}
+#endif
+
+	r = ttm_pool_populate(ttm);
+	if (r) {
+		return r;
+	}
+
+	for (i = 0; i < ttm->num_pages; i++) {
+		ttm_dma->dma_address[i] = pci_map_page(dev->pdev, ttm->pages[i],
+						   0, PAGE_SIZE,
+						   PCI_DMA_BIDIRECTIONAL);
+		if (pci_dma_mapping_error(dev->pdev, ttm_dma->dma_address[i])) {
+			while (--i) {
+				pci_unmap_page(dev->pdev, ttm_dma->dma_address[i],
+					       PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
+				ttm_dma->dma_address[i] = 0;
+			}
+			ttm_pool_unpopulate(ttm);
+			return -EFAULT;
+		}
+	}
+	return 0;
+}
+
+static void
+nouveau_ttm_tt_unpopulate(struct ttm_tt *ttm)
+{
+	struct ttm_dma_tt *ttm_dma = (void *)ttm;
+	struct drm_nouveau_private *dev_priv;
+	struct drm_device *dev;
+	unsigned i;
+
+	dev_priv = nouveau_bdev(ttm->bdev);
+	dev = dev_priv->dev;
+
+#if __OS_HAS_AGP
+	if (dev_priv->gart_info.type == NOUVEAU_GART_AGP) {
+		ttm_agp_tt_unpopulate(ttm);
+		return;
+	}
+#endif
+
+#ifdef CONFIG_SWIOTLB
+	if (swiotlb_nr_tbl()) {
+		ttm_dma_unpopulate((void *)ttm, dev->dev);
+		return;
+	}
+#endif
+
+	for (i = 0; i < ttm->num_pages; i++) {
+		if (ttm_dma->dma_address[i]) {
+			pci_unmap_page(dev->pdev, ttm_dma->dma_address[i],
+				       PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
+		}
+	}
+
+	ttm_pool_unpopulate(ttm);
+}
+
 struct ttm_bo_driver nouveau_bo_driver = {
-	.create_ttm_backend_entry = nouveau_bo_create_ttm_backend_entry,
+	.ttm_tt_create = &nouveau_ttm_tt_create,
+	.ttm_tt_populate = &nouveau_ttm_tt_populate,
+	.ttm_tt_unpopulate = &nouveau_ttm_tt_unpopulate,
 	.invalidate_caches = nouveau_bo_invalidate_caches,
 	.init_mem_type = nouveau_bo_init_mem_type,
 	.evict_flags = nouveau_bo_evict_flags,
@@ -1091,7 +1184,7 @@ nouveau_bo_vma_add(struct nouveau_bo *nvbo, struct nouveau_vm *vm,
 		nouveau_vm_map(vma, nvbo->bo.mem.mm_node);
 	else
 	if (nvbo->bo.mem.mem_type == TTM_PL_TT)
-		nouveau_vm_map_sg(vma, 0, size, node, node->pages);
+		nouveau_vm_map_sg(vma, 0, size, node);
 
 	list_add_tail(&vma->head, &nvbo->vma_list);
 	vma->refcount = 1;
diff --git a/drivers/gpu/drm/nouveau/nouveau_channel.c b/drivers/gpu/drm/nouveau/nouveau_channel.c
index bb6ec9ef8676..a018defb7621 100644
--- a/drivers/gpu/drm/nouveau/nouveau_channel.c
+++ b/drivers/gpu/drm/nouveau/nouveau_channel.c
@@ -187,6 +187,8 @@ nouveau_channel_alloc(struct drm_device *dev, struct nouveau_channel **chan_ret,
 	nouveau_dma_pre_init(chan);
 	chan->user_put = 0x40;
 	chan->user_get = 0x44;
+	if (dev_priv->card_type >= NV_50)
+                chan->user_get_hi = 0x60;
 
 	/* disable the fifo caches */
 	pfifo->reassign(dev, false);
diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.c b/drivers/gpu/drm/nouveau/nouveau_connector.c
index cea6696b1906..f3ce34be082a 100644
--- a/drivers/gpu/drm/nouveau/nouveau_connector.c
+++ b/drivers/gpu/drm/nouveau/nouveau_connector.c
@@ -35,6 +35,7 @@
 #include "nouveau_encoder.h"
 #include "nouveau_crtc.h"
 #include "nouveau_connector.h"
+#include "nouveau_gpio.h"
 #include "nouveau_hw.h"
 
 static void nouveau_connector_hotplug(void *, int);
@@ -78,29 +79,11 @@ nouveau_encoder_connector_get(struct nouveau_encoder *encoder)
 	return NULL;
 }
 
-/*TODO: This could use improvement, and learn to handle the fixed
- *      BIOS tables etc.  It's fine currently, for its only user.
- */
-int
-nouveau_connector_bpp(struct drm_connector *connector)
-{
-	struct nouveau_connector *nv_connector = nouveau_connector(connector);
-
-	if (nv_connector->edid && nv_connector->edid->revision >= 4) {
-		u8 bpc = ((nv_connector->edid->input & 0x70) >> 3) + 4;
-		if (bpc > 4)
-			return bpc;
-	}
-
-	return 18;
-}
-
 static void
 nouveau_connector_destroy(struct drm_connector *connector)
 {
 	struct nouveau_connector *nv_connector = nouveau_connector(connector);
 	struct drm_nouveau_private *dev_priv;
-	struct nouveau_gpio_engine *pgpio;
 	struct drm_device *dev;
 
 	if (!nv_connector)
@@ -110,10 +93,9 @@ nouveau_connector_destroy(struct drm_connector *connector)
 	dev_priv = dev->dev_private;
 	NV_DEBUG_KMS(dev, "\n");
 
-	pgpio = &dev_priv->engine.gpio;
-	if (pgpio->irq_unregister) {
-		pgpio->irq_unregister(dev, nv_connector->dcb->gpio_tag,
-				      nouveau_connector_hotplug, connector);
+	if (nv_connector->hpd != DCB_GPIO_UNUSED) {
+		nouveau_gpio_isr_del(dev, 0, nv_connector->hpd, 0xff,
+				     nouveau_connector_hotplug, connector);
 	}
 
 	kfree(nv_connector->edid);
@@ -198,6 +180,10 @@ nouveau_connector_set_encoder(struct drm_connector *connector,
 		return;
 	nv_connector->detected_encoder = nv_encoder;
 
+	if (dev_priv->card_type >= NV_50) {
+		connector->interlace_allowed = true;
+		connector->doublescan_allowed = true;
+	} else
 	if (nv_encoder->dcb->type == OUTPUT_LVDS ||
 	    nv_encoder->dcb->type == OUTPUT_TMDS) {
 		connector->doublescan_allowed = false;
@@ -214,7 +200,7 @@ nouveau_connector_set_encoder(struct drm_connector *connector,
 			connector->interlace_allowed = true;
 	}
 
-	if (nv_connector->dcb->type == DCB_CONNECTOR_DVI_I) {
+	if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
 		drm_connector_property_set_value(connector,
 			dev->mode_config.dvi_i_subconnector_property,
 			nv_encoder->dcb->type == OUTPUT_TMDS ?
@@ -397,7 +383,7 @@ nouveau_connector_force(struct drm_connector *connector)
 	struct nouveau_encoder *nv_encoder;
 	int type;
 
-	if (nv_connector->dcb->type == DCB_CONNECTOR_DVI_I) {
+	if (nv_connector->type == DCB_CONNECTOR_DVI_I) {
 		if (connector->force == DRM_FORCE_ON_DIGITAL)
 			type = OUTPUT_TMDS;
 		else
@@ -420,15 +406,21 @@ static int
 nouveau_connector_set_property(struct drm_connector *connector,
 			       struct drm_property *property, uint64_t value)
 {
+	struct drm_nouveau_private *dev_priv = connector->dev->dev_private;
+	struct nouveau_display_engine *disp = &dev_priv->engine.display;
 	struct nouveau_connector *nv_connector = nouveau_connector(connector);
 	struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
 	struct drm_encoder *encoder = to_drm_encoder(nv_encoder);
 	struct drm_device *dev = connector->dev;
+	struct nouveau_crtc *nv_crtc;
 	int ret;
 
+	nv_crtc = NULL;
+	if (connector->encoder && connector->encoder->crtc)
+		nv_crtc = nouveau_crtc(connector->encoder->crtc);
+
 	/* Scaling mode */
 	if (property == dev->mode_config.scaling_mode_property) {
-		struct nouveau_crtc *nv_crtc = NULL;
 		bool modeset = false;
 
 		switch (value) {
@@ -454,8 +446,6 @@ nouveau_connector_set_property(struct drm_connector *connector,
 			modeset = true;
 		nv_connector->scaling_mode = value;
 
-		if (connector->encoder && connector->encoder->crtc)
-			nv_crtc = nouveau_crtc(connector->encoder->crtc);
 		if (!nv_crtc)
 			return 0;
 
@@ -467,7 +457,7 @@ nouveau_connector_set_property(struct drm_connector *connector,
 			if (!ret)
 				return -EINVAL;
 		} else {
-			ret = nv_crtc->set_scale(nv_crtc, value, true);
+			ret = nv_crtc->set_scale(nv_crtc, true);
 			if (ret)
 				return ret;
 		}
@@ -475,23 +465,58 @@ nouveau_connector_set_property(struct drm_connector *connector,
 		return 0;
 	}
 
-	/* Dithering */
-	if (property == dev->mode_config.dithering_mode_property) {
-		struct nouveau_crtc *nv_crtc = NULL;
+	/* Underscan */
+	if (property == disp->underscan_property) {
+		if (nv_connector->underscan != value) {
+			nv_connector->underscan = value;
+			if (!nv_crtc || !nv_crtc->set_scale)
+				return 0;
 
-		if (value == DRM_MODE_DITHERING_ON)
-			nv_connector->use_dithering = true;
-		else
-			nv_connector->use_dithering = false;
+			return nv_crtc->set_scale(nv_crtc, true);
+		}
+
+		return 0;
+	}
+
+	if (property == disp->underscan_hborder_property) {
+		if (nv_connector->underscan_hborder != value) {
+			nv_connector->underscan_hborder = value;
+			if (!nv_crtc || !nv_crtc->set_scale)
+				return 0;
+
+			return nv_crtc->set_scale(nv_crtc, true);
+		}
+
+		return 0;
+	}
+
+	if (property == disp->underscan_vborder_property) {
+		if (nv_connector->underscan_vborder != value) {
+			nv_connector->underscan_vborder = value;
+			if (!nv_crtc || !nv_crtc->set_scale)
+				return 0;
+
+			return nv_crtc->set_scale(nv_crtc, true);
+		}
+
+		return 0;
+	}
+
+	/* Dithering */
+	if (property == disp->dithering_mode) {
+		nv_connector->dithering_mode = value;
+		if (!nv_crtc || !nv_crtc->set_dither)
+			return 0;
 
-		if (connector->encoder && connector->encoder->crtc)
-			nv_crtc = nouveau_crtc(connector->encoder->crtc);
+		return nv_crtc->set_dither(nv_crtc, true);
+	}
 
+	if (property == disp->dithering_depth) {
+		nv_connector->dithering_depth = value;
 		if (!nv_crtc || !nv_crtc->set_dither)
 			return 0;
 
-		return nv_crtc->set_dither(nv_crtc, nv_connector->use_dithering,
-					   true);
+		return nv_crtc->set_dither(nv_crtc, true);
 	}
 
 	if (nv_encoder && nv_encoder->dcb->type == OUTPUT_TV)
@@ -602,6 +627,46 @@ nouveau_connector_scaler_modes_add(struct drm_connector *connector)
 	return modes;
 }
 
+static void
+nouveau_connector_detect_depth(struct drm_connector *connector)
+{
+	struct drm_nouveau_private *dev_priv = connector->dev->dev_private;
+	struct nouveau_connector *nv_connector = nouveau_connector(connector);
+	struct nouveau_encoder *nv_encoder = nv_connector->detected_encoder;
+	struct nvbios *bios = &dev_priv->vbios;
+	struct drm_display_mode *mode = nv_connector->native_mode;
+	bool duallink;
+
+	/* if the edid is feeling nice enough to provide this info, use it */
+	if (nv_connector->edid && connector->display_info.bpc)
+		return;
+
+	/* if not, we're out of options unless we're LVDS, default to 6bpc */
+	connector->display_info.bpc = 6;
+	if (nv_encoder->dcb->type != OUTPUT_LVDS)
+		return;
+
+	/* LVDS: panel straps */
+	if (bios->fp_no_ddc) {
+		if (bios->fp.if_is_24bit)
+			connector->display_info.bpc = 8;
+		return;
+	}
+
+	/* LVDS: DDC panel, need to first determine the number of links to
+	 * know which if_is_24bit flag to check...
+	 */
+	if (nv_connector->edid &&
+	    nv_connector->type == DCB_CONNECTOR_LVDS_SPWG)
+		duallink = ((u8 *)nv_connector->edid)[121] == 2;
+	else
+		duallink = mode->clock >= bios->fp.duallink_transition_clk;
+
+	if ((!duallink && (bios->fp.strapless_is_24bit & 1)) ||
+	    ( duallink && (bios->fp.strapless_is_24bit & 2)))
+		connector->display_info.bpc = 8;
+}
+
 static int
 nouveau_connector_get_modes(struct drm_connector *connector)
 {
@@ -631,6 +696,12 @@ nouveau_connector_get_modes(struct drm_connector *connector)
 		nv_connector->native_mode = drm_mode_duplicate(dev, &mode);
 	}
 
+	/* Determine display colour depth for everything except LVDS now,
+	 * DP requires this before mode_valid() is called.
+	 */
+	if (connector->connector_type != DRM_MODE_CONNECTOR_LVDS)
+		nouveau_connector_detect_depth(connector);
+
 	/* Find the native mode if this is a digital panel, if we didn't
 	 * find any modes through DDC previously add the native mode to
 	 * the list of modes.
@@ -646,12 +717,19 @@ nouveau_connector_get_modes(struct drm_connector *connector)
 		ret = 1;
 	}
 
+	/* Determine LVDS colour depth, must happen after determining
+	 * "native" mode as some VBIOS tables require us to use the
+	 * pixel clock as part of the lookup...
+	 */
+	if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS)
+		nouveau_connector_detect_depth(connector);
+
 	if (nv_encoder->dcb->type == OUTPUT_TV)
 		ret = get_slave_funcs(encoder)->get_modes(encoder, connector);
 
-	if (nv_connector->dcb->type == DCB_CONNECTOR_LVDS ||
-	    nv_connector->dcb->type == DCB_CONNECTOR_LVDS_SPWG ||
-	    nv_connector->dcb->type == DCB_CONNECTOR_eDP)
+	if (nv_connector->type == DCB_CONNECTOR_LVDS ||
+	    nv_connector->type == DCB_CONNECTOR_LVDS_SPWG ||
+	    nv_connector->type == DCB_CONNECTOR_eDP)
 		ret += nouveau_connector_scaler_modes_add(connector);
 
 	return ret;
@@ -710,7 +788,7 @@ nouveau_connector_mode_valid(struct drm_connector *connector,
 	case OUTPUT_DP:
 		max_clock  = nv_encoder->dp.link_nr;
 		max_clock *= nv_encoder->dp.link_bw;
-		clock = clock * nouveau_connector_bpp(connector) / 10;
+		clock = clock * (connector->display_info.bpc * 3) / 10;
 		break;
 	default:
 		BUG_ON(1);
@@ -768,96 +846,175 @@ nouveau_connector_funcs_lvds = {
 	.force = nouveau_connector_force
 };
 
+static int
+drm_conntype_from_dcb(enum dcb_connector_type dcb)
+{
+	switch (dcb) {
+	case DCB_CONNECTOR_VGA      : return DRM_MODE_CONNECTOR_VGA;
+	case DCB_CONNECTOR_TV_0     :
+	case DCB_CONNECTOR_TV_1     :
+	case DCB_CONNECTOR_TV_3     : return DRM_MODE_CONNECTOR_TV;
+	case DCB_CONNECTOR_DVI_I    : return DRM_MODE_CONNECTOR_DVII;
+	case DCB_CONNECTOR_DVI_D    : return DRM_MODE_CONNECTOR_DVID;
+	case DCB_CONNECTOR_LVDS     :
+	case DCB_CONNECTOR_LVDS_SPWG: return DRM_MODE_CONNECTOR_LVDS;
+	case DCB_CONNECTOR_DP       : return DRM_MODE_CONNECTOR_DisplayPort;
+	case DCB_CONNECTOR_eDP      : return DRM_MODE_CONNECTOR_eDP;
+	case DCB_CONNECTOR_HDMI_0   :
+	case DCB_CONNECTOR_HDMI_1   : return DRM_MODE_CONNECTOR_HDMIA;
+	default:
+		break;
+	}
+
+	return DRM_MODE_CONNECTOR_Unknown;
+}
+
 struct drm_connector *
 nouveau_connector_create(struct drm_device *dev, int index)
 {
 	const struct drm_connector_funcs *funcs = &nouveau_connector_funcs;
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
+	struct nouveau_display_engine *disp = &dev_priv->engine.display;
 	struct nouveau_connector *nv_connector = NULL;
-	struct dcb_connector_table_entry *dcb = NULL;
 	struct drm_connector *connector;
 	int type, ret = 0;
+	bool dummy;
 
 	NV_DEBUG_KMS(dev, "\n");
 
-	if (index >= dev_priv->vbios.dcb.connector.entries)
-		return ERR_PTR(-EINVAL);
-
-	dcb = &dev_priv->vbios.dcb.connector.entry[index];
-	if (dcb->drm)
-		return dcb->drm;
-
-	switch (dcb->type) {
-	case DCB_CONNECTOR_VGA:
-		type = DRM_MODE_CONNECTOR_VGA;
-		break;
-	case DCB_CONNECTOR_TV_0:
-	case DCB_CONNECTOR_TV_1:
-	case DCB_CONNECTOR_TV_3:
-		type = DRM_MODE_CONNECTOR_TV;
-		break;
-	case DCB_CONNECTOR_DVI_I:
-		type = DRM_MODE_CONNECTOR_DVII;
-		break;
-	case DCB_CONNECTOR_DVI_D:
-		type = DRM_MODE_CONNECTOR_DVID;
-		break;
-	case DCB_CONNECTOR_HDMI_0:
-	case DCB_CONNECTOR_HDMI_1:
-		type = DRM_MODE_CONNECTOR_HDMIA;
-		break;
-	case DCB_CONNECTOR_LVDS:
-	case DCB_CONNECTOR_LVDS_SPWG:
-		type = DRM_MODE_CONNECTOR_LVDS;
-		funcs = &nouveau_connector_funcs_lvds;
-		break;
-	case DCB_CONNECTOR_DP:
-		type = DRM_MODE_CONNECTOR_DisplayPort;
-		break;
-	case DCB_CONNECTOR_eDP:
-		type = DRM_MODE_CONNECTOR_eDP;
-		break;
-	default:
-		NV_ERROR(dev, "unknown connector type: 0x%02x!!\n", dcb->type);
-		return ERR_PTR(-EINVAL);
+	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+		nv_connector = nouveau_connector(connector);
+		if (nv_connector->index == index)
+			return connector;
 	}
 
 	nv_connector = kzalloc(sizeof(*nv_connector), GFP_KERNEL);
 	if (!nv_connector)
 		return ERR_PTR(-ENOMEM);
-	nv_connector->dcb = dcb;
+
 	connector = &nv_connector->base;
+	nv_connector->index = index;
+
+	/* attempt to parse vbios connector type and hotplug gpio */
+	nv_connector->dcb = dcb_conn(dev, index);
+	if (nv_connector->dcb) {
+		static const u8 hpd[16] = {
+			0xff, 0x07, 0x08, 0xff, 0xff, 0x51, 0x52, 0xff,
+			0xff, 0xff, 0xff, 0xff, 0xff, 0x5e, 0x5f, 0x60,
+		};
+
+		u32 entry = ROM16(nv_connector->dcb[0]);
+		if (dcb_conntab(dev)[3] >= 4)
+			entry |= (u32)ROM16(nv_connector->dcb[2]) << 16;
+
+		nv_connector->hpd = ffs((entry & 0x07033000) >> 12);
+		nv_connector->hpd = hpd[nv_connector->hpd];
+
+		nv_connector->type = nv_connector->dcb[0];
+		if (drm_conntype_from_dcb(nv_connector->type) ==
+					  DRM_MODE_CONNECTOR_Unknown) {
+			NV_WARN(dev, "unknown connector type %02x\n",
+				nv_connector->type);
+			nv_connector->type = DCB_CONNECTOR_NONE;
+		}
 
-	/* defaults, will get overridden in detect() */
-	connector->interlace_allowed = false;
-	connector->doublescan_allowed = false;
+		/* Gigabyte NX85T */
+		if (nv_match_device(dev, 0x0421, 0x1458, 0x344c)) {
+			if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
+				nv_connector->type = DCB_CONNECTOR_DVI_I;
+		}
 
-	drm_connector_init(dev, connector, funcs, type);
-	drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);
+		/* Gigabyte GV-NX86T512H */
+		if (nv_match_device(dev, 0x0402, 0x1458, 0x3455)) {
+			if (nv_connector->type == DCB_CONNECTOR_HDMI_1)
+				nv_connector->type = DCB_CONNECTOR_DVI_I;
+		}
+	} else {
+		nv_connector->type = DCB_CONNECTOR_NONE;
+		nv_connector->hpd = DCB_GPIO_UNUSED;
+	}
+
+	/* no vbios data, or an unknown dcb connector type - attempt to
+	 * figure out something suitable ourselves
+	 */
+	if (nv_connector->type == DCB_CONNECTOR_NONE) {
+		struct drm_nouveau_private *dev_priv = dev->dev_private;
+		struct dcb_table *dcbt = &dev_priv->vbios.dcb;
+		u32 encoders = 0;
+		int i;
+
+		for (i = 0; i < dcbt->entries; i++) {
+			if (dcbt->entry[i].connector == nv_connector->index)
+				encoders |= (1 << dcbt->entry[i].type);
+		}
 
-	/* Check if we need dithering enabled */
-	if (connector->connector_type == DRM_MODE_CONNECTOR_LVDS) {
-		bool dummy, is_24bit = false;
+		if (encoders & (1 << OUTPUT_DP)) {
+			if (encoders & (1 << OUTPUT_TMDS))
+				nv_connector->type = DCB_CONNECTOR_DP;
+			else
+				nv_connector->type = DCB_CONNECTOR_eDP;
+		} else
+		if (encoders & (1 << OUTPUT_TMDS)) {
+			if (encoders & (1 << OUTPUT_ANALOG))
+				nv_connector->type = DCB_CONNECTOR_DVI_I;
+			else
+				nv_connector->type = DCB_CONNECTOR_DVI_D;
+		} else
+		if (encoders & (1 << OUTPUT_ANALOG)) {
+			nv_connector->type = DCB_CONNECTOR_VGA;
+		} else
+		if (encoders & (1 << OUTPUT_LVDS)) {
+			nv_connector->type = DCB_CONNECTOR_LVDS;
+		} else
+		if (encoders & (1 << OUTPUT_TV)) {
+			nv_connector->type = DCB_CONNECTOR_TV_0;
+		}
+	}
 
-		ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &is_24bit);
+	type = drm_conntype_from_dcb(nv_connector->type);
+	if (type == DRM_MODE_CONNECTOR_LVDS) {
+		ret = nouveau_bios_parse_lvds_table(dev, 0, &dummy, &dummy);
 		if (ret) {
-			NV_ERROR(dev, "Error parsing LVDS table, disabling "
-				 "LVDS\n");
-			goto fail;
+			NV_ERROR(dev, "Error parsing LVDS table, disabling\n");
+			kfree(nv_connector);
+			return ERR_PTR(ret);
 		}
 
-		nv_connector->use_dithering = !is_24bit;
+		funcs = &nouveau_connector_funcs_lvds;
+	} else {
+		funcs = &nouveau_connector_funcs;
 	}
 
+	/* defaults, will get overridden in detect() */
+	connector->interlace_allowed = false;
+	connector->doublescan_allowed = false;
+
+	drm_connector_init(dev, connector, funcs, type);
+	drm_connector_helper_add(connector, &nouveau_connector_helper_funcs);
+
 	/* Init DVI-I specific properties */
-	if (dcb->type == DCB_CONNECTOR_DVI_I) {
-		drm_mode_create_dvi_i_properties(dev);
+	if (nv_connector->type == DCB_CONNECTOR_DVI_I)
 		drm_connector_attach_property(connector, dev->mode_config.dvi_i_subconnector_property, 0);
-		drm_connector_attach_property(connector, dev->mode_config.dvi_i_select_subconnector_property, 0);
+
+	/* Add overscan compensation options to digital outputs */
+	if (disp->underscan_property &&
+	    (nv_connector->type == DCB_CONNECTOR_DVI_D ||
+	     nv_connector->type == DCB_CONNECTOR_DVI_I ||
+	     nv_connector->type == DCB_CONNECTOR_HDMI_0 ||
+	     nv_connector->type == DCB_CONNECTOR_HDMI_1 ||
+	     nv_connector->type == DCB_CONNECTOR_DP)) {
+		drm_connector_attach_property(connector,
+					      disp->underscan_property,
+					      UNDERSCAN_OFF);
+		drm_connector_attach_property(connector,
+					      disp->underscan_hborder_property,
+					      0);
+		drm_connector_attach_property(connector,
+					      disp->underscan_vborder_property,
+					      0);
 	}
 
-	switch (dcb->type) {
+	switch (nv_connector->type) {
 	case DCB_CONNECTOR_VGA:
 		if (dev_priv->card_type >= NV_50) {
 			drm_connector_attach_property(connector,
@@ -876,32 +1033,32 @@ nouveau_connector_create(struct drm_device *dev, int index)
 		drm_connector_attach_property(connector,
 				dev->mode_config.scaling_mode_property,
 				nv_connector->scaling_mode);
-		drm_connector_attach_property(connector,
-				dev->mode_config.dithering_mode_property,
-				nv_connector->use_dithering ?
-				DRM_MODE_DITHERING_ON : DRM_MODE_DITHERING_OFF);
+		if (disp->dithering_mode) {
+			nv_connector->dithering_mode = DITHERING_MODE_AUTO;
+			drm_connector_attach_property(connector,
+						disp->dithering_mode,
+						nv_connector->dithering_mode);
+		}
+		if (disp->dithering_depth) {
+			nv_connector->dithering_depth = DITHERING_DEPTH_AUTO;
+			drm_connector_attach_property(connector,
+						disp->dithering_depth,
+						nv_connector->dithering_depth);
+		}
 		break;
 	}
 
-	if (nv_connector->dcb->gpio_tag != 0xff && pgpio->irq_register) {
-		pgpio->irq_register(dev, nv_connector->dcb->gpio_tag,
-				    nouveau_connector_hotplug, connector);
-
-		connector->polled = DRM_CONNECTOR_POLL_HPD;
-	} else {
-		connector->polled = DRM_CONNECTOR_POLL_CONNECT;
+	connector->polled = DRM_CONNECTOR_POLL_CONNECT;
+	if (nv_connector->hpd != DCB_GPIO_UNUSED) {
+		ret = nouveau_gpio_isr_add(dev, 0, nv_connector->hpd, 0xff,
+					   nouveau_connector_hotplug,
+					   connector);
+		if (ret == 0)
+			connector->polled = DRM_CONNECTOR_POLL_HPD;
 	}
 
 	drm_sysfs_connector_add(connector);
-
-	dcb->drm = connector;
-	return dcb->drm;
-
-fail:
-	drm_connector_cleanup(connector);
-	kfree(connector);
-	return ERR_PTR(ret);
-
+	return connector;
 }
 
 static void
diff --git a/drivers/gpu/drm/nouveau/nouveau_connector.h b/drivers/gpu/drm/nouveau/nouveau_connector.h
index 711b1e9203af..e4857021304c 100644
--- a/drivers/gpu/drm/nouveau/nouveau_connector.h
+++ b/drivers/gpu/drm/nouveau/nouveau_connector.h
@@ -30,13 +30,43 @@
 #include "drm_edid.h"
 #include "nouveau_i2c.h"
 
+enum nouveau_underscan_type {
+	UNDERSCAN_OFF,
+	UNDERSCAN_ON,
+	UNDERSCAN_AUTO,
+};
+
+/* the enum values specifically defined here match nv50/nvd0 hw values, and
+ * the code relies on this
+ */
+enum nouveau_dithering_mode {
+	DITHERING_MODE_OFF = 0x00,
+	DITHERING_MODE_ON = 0x01,
+	DITHERING_MODE_DYNAMIC2X2 = 0x10 | DITHERING_MODE_ON,
+	DITHERING_MODE_STATIC2X2 = 0x18 | DITHERING_MODE_ON,
+	DITHERING_MODE_TEMPORAL = 0x20 | DITHERING_MODE_ON,
+	DITHERING_MODE_AUTO
+};
+
+enum nouveau_dithering_depth {
+	DITHERING_DEPTH_6BPC = 0x00,
+	DITHERING_DEPTH_8BPC = 0x02,
+	DITHERING_DEPTH_AUTO
+};
+
 struct nouveau_connector {
 	struct drm_connector base;
+	enum dcb_connector_type type;
+	u8 index;
+	u8 *dcb;
+	u8 hpd;
 
-	struct dcb_connector_table_entry *dcb;
-
+	int dithering_mode;
+	int dithering_depth;
 	int scaling_mode;
-	bool use_dithering;
+	enum nouveau_underscan_type underscan;
+	u32 underscan_hborder;
+	u32 underscan_vborder;
 
 	struct nouveau_encoder *detected_encoder;
 	struct edid *edid;
diff --git a/drivers/gpu/drm/nouveau/nouveau_crtc.h b/drivers/gpu/drm/nouveau/nouveau_crtc.h
index bf8e1289953d..686f6b4a1da3 100644
--- a/drivers/gpu/drm/nouveau/nouveau_crtc.h
+++ b/drivers/gpu/drm/nouveau/nouveau_crtc.h
@@ -32,8 +32,6 @@ struct nouveau_crtc {
 
 	int index;
 
-	struct drm_display_mode *mode;
-
 	uint32_t dpms_saved_fp_control;
 	uint32_t fp_users;
 	int saturation;
@@ -67,8 +65,8 @@ struct nouveau_crtc {
 		int depth;
 	} lut;
 
-	int (*set_dither)(struct nouveau_crtc *crtc, bool on, bool update);
-	int (*set_scale)(struct nouveau_crtc *crtc, int mode, bool update);
+	int (*set_dither)(struct nouveau_crtc *crtc, bool update);
+	int (*set_scale)(struct nouveau_crtc *crtc, bool update);
 };
 
 static inline struct nouveau_crtc *nouveau_crtc(struct drm_crtc *crtc)
diff --git a/drivers/gpu/drm/nouveau/nouveau_debugfs.c b/drivers/gpu/drm/nouveau/nouveau_debugfs.c
index 8e1592368cce..fa2ec491f6a7 100644
--- a/drivers/gpu/drm/nouveau/nouveau_debugfs.c
+++ b/drivers/gpu/drm/nouveau/nouveau_debugfs.c
@@ -44,7 +44,7 @@ nouveau_debugfs_channel_info(struct seq_file *m, void *data)
 	seq_printf(m, "channel id    : %d\n", chan->id);
 
 	seq_printf(m, "cpu fifo state:\n");
-	seq_printf(m, "          base: 0x%08x\n", chan->pushbuf_base);
+	seq_printf(m, "          base: 0x%10llx\n", chan->pushbuf_base);
 	seq_printf(m, "           max: 0x%08x\n", chan->dma.max << 2);
 	seq_printf(m, "           cur: 0x%08x\n", chan->dma.cur << 2);
 	seq_printf(m, "           put: 0x%08x\n", chan->dma.put << 2);
@@ -178,6 +178,7 @@ static struct drm_info_list nouveau_debugfs_list[] = {
 	{ "memory", nouveau_debugfs_memory_info, 0, NULL },
 	{ "vbios.rom", nouveau_debugfs_vbios_image, 0, NULL },
 	{ "ttm_page_pool", ttm_page_alloc_debugfs, 0, NULL },
+	{ "ttm_dma_page_pool", ttm_dma_page_alloc_debugfs, 0, NULL },
 };
 #define NOUVEAU_DEBUGFS_ENTRIES ARRAY_SIZE(nouveau_debugfs_list)
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c
index b12fd2c80812..3cb52bc52b21 100644
--- a/drivers/gpu/drm/nouveau/nouveau_display.c
+++ b/drivers/gpu/drm/nouveau/nouveau_display.c
@@ -32,6 +32,8 @@
 #include "nouveau_hw.h"
 #include "nouveau_crtc.h"
 #include "nouveau_dma.h"
+#include "nouveau_connector.h"
+#include "nouveau_gpio.h"
 #include "nv50_display.h"
 
 static void
@@ -64,7 +66,7 @@ static const struct drm_framebuffer_funcs nouveau_framebuffer_funcs = {
 int
 nouveau_framebuffer_init(struct drm_device *dev,
 			 struct nouveau_framebuffer *nv_fb,
-			 struct drm_mode_fb_cmd *mode_cmd,
+			 struct drm_mode_fb_cmd2 *mode_cmd,
 			 struct nouveau_bo *nvbo)
 {
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
@@ -107,14 +109,14 @@ nouveau_framebuffer_init(struct drm_device *dev,
 
 		if (!tile_flags) {
 			if (dev_priv->card_type < NV_D0)
-				nv_fb->r_pitch = 0x00100000 | fb->pitch;
+				nv_fb->r_pitch = 0x00100000 | fb->pitches[0];
 			else
-				nv_fb->r_pitch = 0x01000000 | fb->pitch;
+				nv_fb->r_pitch = 0x01000000 | fb->pitches[0];
 		} else {
 			u32 mode = nvbo->tile_mode;
 			if (dev_priv->card_type >= NV_C0)
 				mode >>= 4;
-			nv_fb->r_pitch = ((fb->pitch / 4) << 4) | mode;
+			nv_fb->r_pitch = ((fb->pitches[0] / 4) << 4) | mode;
 		}
 	}
 
@@ -124,13 +126,13 @@ nouveau_framebuffer_init(struct drm_device *dev,
 static struct drm_framebuffer *
 nouveau_user_framebuffer_create(struct drm_device *dev,
 				struct drm_file *file_priv,
-				struct drm_mode_fb_cmd *mode_cmd)
+				struct drm_mode_fb_cmd2 *mode_cmd)
 {
 	struct nouveau_framebuffer *nouveau_fb;
 	struct drm_gem_object *gem;
 	int ret;
 
-	gem = drm_gem_object_lookup(dev, file_priv, mode_cmd->handle);
+	gem = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[0]);
 	if (!gem)
 		return ERR_PTR(-ENOENT);
 
@@ -147,11 +149,186 @@ nouveau_user_framebuffer_create(struct drm_device *dev,
 	return &nouveau_fb->base;
 }
 
-const struct drm_mode_config_funcs nouveau_mode_config_funcs = {
+static const struct drm_mode_config_funcs nouveau_mode_config_funcs = {
 	.fb_create = nouveau_user_framebuffer_create,
 	.output_poll_changed = nouveau_fbcon_output_poll_changed,
 };
 
+
+struct drm_prop_enum_list {
+	u8 gen_mask;
+	int type;
+	char *name;
+};
+
+static struct drm_prop_enum_list underscan[] = {
+	{ 6, UNDERSCAN_AUTO, "auto" },
+	{ 6, UNDERSCAN_OFF, "off" },
+	{ 6, UNDERSCAN_ON, "on" },
+	{}
+};
+
+static struct drm_prop_enum_list dither_mode[] = {
+	{ 7, DITHERING_MODE_AUTO, "auto" },
+	{ 7, DITHERING_MODE_OFF, "off" },
+	{ 1, DITHERING_MODE_ON, "on" },
+	{ 6, DITHERING_MODE_STATIC2X2, "static 2x2" },
+	{ 6, DITHERING_MODE_DYNAMIC2X2, "dynamic 2x2" },
+	{ 4, DITHERING_MODE_TEMPORAL, "temporal" },
+	{}
+};
+
+static struct drm_prop_enum_list dither_depth[] = {
+	{ 6, DITHERING_DEPTH_AUTO, "auto" },
+	{ 6, DITHERING_DEPTH_6BPC, "6 bpc" },
+	{ 6, DITHERING_DEPTH_8BPC, "8 bpc" },
+	{}
+};
+
+#define PROP_ENUM(p,gen,n,list) do {                                           \
+	struct drm_prop_enum_list *l = (list);                                 \
+	int c = 0;                                                             \
+	while (l->gen_mask) {                                                  \
+		if (l->gen_mask & (1 << (gen)))                                \
+			c++;                                                   \
+		l++;                                                           \
+	}                                                                      \
+	if (c) {                                                               \
+		p = drm_property_create(dev, DRM_MODE_PROP_ENUM, n, c);        \
+		l = (list);                                                    \
+		c = 0;                                                         \
+		while (p && l->gen_mask) {                                     \
+			if (l->gen_mask & (1 << (gen))) {                      \
+				drm_property_add_enum(p, c, l->type, l->name); \
+				c++;                                           \
+			}                                                      \
+			l++;                                                   \
+		}                                                              \
+	}                                                                      \
+} while(0)
+
+int
+nouveau_display_init(struct drm_device *dev)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_display_engine *disp = &dev_priv->engine.display;
+	struct drm_connector *connector;
+	int ret;
+
+	ret = disp->init(dev);
+	if (ret)
+		return ret;
+
+	drm_kms_helper_poll_enable(dev);
+
+	/* enable hotplug interrupts */
+	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+		struct nouveau_connector *conn = nouveau_connector(connector);
+		nouveau_gpio_irq(dev, 0, conn->hpd, 0xff, true);
+	}
+
+	return ret;
+}
+
+void
+nouveau_display_fini(struct drm_device *dev)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_display_engine *disp = &dev_priv->engine.display;
+	struct drm_connector *connector;
+
+	/* disable hotplug interrupts */
+	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+		struct nouveau_connector *conn = nouveau_connector(connector);
+		nouveau_gpio_irq(dev, 0, conn->hpd, 0xff, false);
+	}
+
+	drm_kms_helper_poll_disable(dev);
+	disp->fini(dev);
+}
+
+int
+nouveau_display_create(struct drm_device *dev)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_display_engine *disp = &dev_priv->engine.display;
+	int ret, gen;
+
+	drm_mode_config_init(dev);
+	drm_mode_create_scaling_mode_property(dev);
+	drm_mode_create_dvi_i_properties(dev);
+
+	if (dev_priv->card_type < NV_50)
+		gen = 0;
+	else
+	if (dev_priv->card_type < NV_D0)
+		gen = 1;
+	else
+		gen = 2;
+
+	PROP_ENUM(disp->dithering_mode, gen, "dithering mode", dither_mode);
+	PROP_ENUM(disp->dithering_depth, gen, "dithering depth", dither_depth);
+	PROP_ENUM(disp->underscan_property, gen, "underscan", underscan);
+
+	disp->underscan_hborder_property =
+		drm_property_create(dev, DRM_MODE_PROP_RANGE,
+				    "underscan hborder", 2);
+	disp->underscan_hborder_property->values[0] = 0;
+	disp->underscan_hborder_property->values[1] = 128;
+
+	disp->underscan_vborder_property =
+		drm_property_create(dev, DRM_MODE_PROP_RANGE,
+				    "underscan vborder", 2);
+	disp->underscan_vborder_property->values[0] = 0;
+	disp->underscan_vborder_property->values[1] = 128;
+
+	dev->mode_config.funcs = (void *)&nouveau_mode_config_funcs;
+	dev->mode_config.fb_base = pci_resource_start(dev->pdev, 1);
+
+	dev->mode_config.min_width = 0;
+	dev->mode_config.min_height = 0;
+	if (dev_priv->card_type < NV_10) {
+		dev->mode_config.max_width = 2048;
+		dev->mode_config.max_height = 2048;
+	} else
+	if (dev_priv->card_type < NV_50) {
+		dev->mode_config.max_width = 4096;
+		dev->mode_config.max_height = 4096;
+	} else {
+		dev->mode_config.max_width = 8192;
+		dev->mode_config.max_height = 8192;
+	}
+
+	drm_kms_helper_poll_init(dev);
+	drm_kms_helper_poll_disable(dev);
+
+	ret = disp->create(dev);
+	if (ret)
+		return ret;
+
+	if (dev->mode_config.num_crtc) {
+		ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
+		if (ret)
+			return ret;
+	}
+
+	return ret;
+}
+
+void
+nouveau_display_destroy(struct drm_device *dev)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_display_engine *disp = &dev_priv->engine.display;
+
+	drm_vblank_cleanup(dev);
+
+	disp->destroy(dev);
+
+	drm_kms_helper_poll_fini(dev);
+	drm_mode_config_cleanup(dev);
+}
+
 int
 nouveau_vblank_enable(struct drm_device *dev, int crtc)
 {
@@ -294,7 +471,7 @@ nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
 	/* Initialize a page flip struct */
 	*s = (struct nouveau_page_flip_state)
 		{ { }, event, nouveau_crtc(crtc)->index,
-		  fb->bits_per_pixel, fb->pitch, crtc->x, crtc->y,
+		  fb->bits_per_pixel, fb->pitches[0], crtc->x, crtc->y,
 		  new_bo->bo.offset };
 
 	/* Choose the channel the flip will be handled in */
@@ -305,7 +482,10 @@ nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
 
 	/* Emit a page flip */
 	if (dev_priv->card_type >= NV_50) {
-		ret = nv50_display_flip_next(crtc, fb, chan);
+		if (dev_priv->card_type >= NV_D0)
+			ret = nvd0_display_flip_next(crtc, fb, chan, 0);
+		else
+			ret = nv50_display_flip_next(crtc, fb, chan);
 		if (ret) {
 			nouveau_channel_put(&chan);
 			goto fail_unreserve;
diff --git a/drivers/gpu/drm/nouveau/nouveau_dma.c b/drivers/gpu/drm/nouveau/nouveau_dma.c
index 00bc6eaad558..4c2e4e5925fe 100644
--- a/drivers/gpu/drm/nouveau/nouveau_dma.c
+++ b/drivers/gpu/drm/nouveau/nouveau_dma.c
@@ -134,11 +134,13 @@ OUT_RINGp(struct nouveau_channel *chan, const void *data, unsigned nr_dwords)
  *  -EBUSY if timeout exceeded
  */
 static inline int
-READ_GET(struct nouveau_channel *chan, uint32_t *prev_get, uint32_t *timeout)
+READ_GET(struct nouveau_channel *chan, uint64_t *prev_get, int *timeout)
 {
-	uint32_t val;
+	uint64_t val;
 
 	val = nvchan_rd32(chan, chan->user_get);
+        if (chan->user_get_hi)
+                val |= (uint64_t)nvchan_rd32(chan, chan->user_get_hi) << 32;
 
 	/* reset counter as long as GET is still advancing, this is
 	 * to avoid misdetecting a GPU lockup if the GPU happens to
@@ -218,8 +220,8 @@ nv50_dma_push_wait(struct nouveau_channel *chan, int count)
 static int
 nv50_dma_wait(struct nouveau_channel *chan, int slots, int count)
 {
-	uint32_t cnt = 0, prev_get = 0;
-	int ret;
+	uint64_t prev_get = 0;
+	int ret, cnt = 0;
 
 	ret = nv50_dma_push_wait(chan, slots + 1);
 	if (unlikely(ret))
@@ -261,8 +263,8 @@ nv50_dma_wait(struct nouveau_channel *chan, int slots, int count)
 int
 nouveau_dma_wait(struct nouveau_channel *chan, int slots, int size)
 {
-	uint32_t prev_get = 0, cnt = 0;
-	int get;
+	uint64_t prev_get = 0;
+	int cnt = 0, get;
 
 	if (chan->dma.ib_max)
 		return nv50_dma_wait(chan, slots, size);
diff --git a/drivers/gpu/drm/nouveau/nouveau_dp.c b/drivers/gpu/drm/nouveau/nouveau_dp.c
index de5efe71fefd..9b93b703ceab 100644
--- a/drivers/gpu/drm/nouveau/nouveau_dp.c
+++ b/drivers/gpu/drm/nouveau/nouveau_dp.c
@@ -29,6 +29,7 @@
 #include "nouveau_connector.h"
 #include "nouveau_encoder.h"
 #include "nouveau_crtc.h"
+#include "nouveau_gpio.h"
 
 /******************************************************************************
  * aux channel util functions
@@ -273,8 +274,6 @@ nouveau_dp_tu_update(struct drm_device *dev, int or, int link, u32 clk, u32 bpp)
 u8 *
 nouveau_dp_bios_data(struct drm_device *dev, struct dcb_entry *dcb, u8 **entry)
 {
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nvbios *bios = &dev_priv->vbios;
 	struct bit_entry d;
 	u8 *table;
 	int i;
@@ -289,7 +288,7 @@ nouveau_dp_bios_data(struct drm_device *dev, struct dcb_entry *dcb, u8 **entry)
 		return NULL;
 	}
 
-	table = ROMPTR(bios, d.data[0]);
+	table = ROMPTR(dev, d.data[0]);
 	if (!table) {
 		NV_ERROR(dev, "displayport table pointer invalid\n");
 		return NULL;
@@ -306,7 +305,7 @@ nouveau_dp_bios_data(struct drm_device *dev, struct dcb_entry *dcb, u8 **entry)
 	}
 
 	for (i = 0; i < table[3]; i++) {
-		*entry = ROMPTR(bios, table[table[1] + (i * table[2])]);
+		*entry = ROMPTR(dev, table[table[1] + (i * table[2])]);
 		if (*entry && bios_encoder_match(dcb, ROM32((*entry)[0])))
 			return table;
 	}
@@ -336,7 +335,6 @@ struct dp_state {
 static void
 dp_set_link_config(struct drm_device *dev, struct dp_state *dp)
 {
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
 	int or = dp->or, link = dp->link;
 	u8 *entry, sink[2];
 	u32 dp_ctrl;
@@ -360,7 +358,7 @@ dp_set_link_config(struct drm_device *dev, struct dp_state *dp)
 	 * table, that has (among other things) pointers to more scripts that
 	 * need to be executed, this time depending on link speed.
 	 */
-	entry = ROMPTR(&dev_priv->vbios, dp->entry[10]);
+	entry = ROMPTR(dev, dp->entry[10]);
 	if (entry) {
 		if (dp->table[0] < 0x30) {
 			while (dp->link_bw < (ROM16(entry[0]) * 10))
@@ -559,8 +557,6 @@ dp_link_train_eq(struct drm_device *dev, struct dp_state *dp)
 bool
 nouveau_dp_link_train(struct drm_encoder *encoder, u32 datarate)
 {
-	struct drm_nouveau_private *dev_priv = encoder->dev->dev_private;
-	struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
 	struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc);
 	struct nouveau_connector *nv_connector =
@@ -581,7 +577,7 @@ nouveau_dp_link_train(struct drm_encoder *encoder, u32 datarate)
 
 	dp.dcb = nv_encoder->dcb;
 	dp.crtc = nv_crtc->index;
-	dp.auxch = auxch->rd;
+	dp.auxch = auxch->drive;
 	dp.or = nv_encoder->or;
 	dp.link = !(nv_encoder->dcb->sorconf.link & 1);
 	dp.dpcd = nv_encoder->dp.dpcd;
@@ -590,7 +586,7 @@ nouveau_dp_link_train(struct drm_encoder *encoder, u32 datarate)
 	 * we take during link training (DP_SET_POWER is one), we need
 	 * to ignore them for the moment to avoid races.
 	 */
-	pgpio->irq_enable(dev, nv_connector->dcb->gpio_tag, false);
+	nouveau_gpio_irq(dev, 0, nv_connector->hpd, 0xff, false);
 
 	/* enable down-spreading, if possible */
 	if (dp.table[1] >= 16) {
@@ -639,7 +635,7 @@ nouveau_dp_link_train(struct drm_encoder *encoder, u32 datarate)
 	nouveau_bios_run_init_table(dev, ROM16(dp.entry[8]), dp.dcb, dp.crtc);
 
 	/* re-enable hotplug detect */
-	pgpio->irq_enable(dev, nv_connector->dcb->gpio_tag, true);
+	nouveau_gpio_irq(dev, 0, nv_connector->hpd, 0xff, true);
 	return true;
 }
 
@@ -656,7 +652,7 @@ nouveau_dp_detect(struct drm_encoder *encoder)
 	if (!auxch)
 		return false;
 
-	ret = auxch_tx(dev, auxch->rd, 9, DP_DPCD_REV, dpcd, 8);
+	ret = auxch_tx(dev, auxch->drive, 9, DP_DPCD_REV, dpcd, 8);
 	if (ret)
 		return false;
 
@@ -684,7 +680,7 @@ int
 nouveau_dp_auxch(struct nouveau_i2c_chan *auxch, int cmd, int addr,
 		 uint8_t *data, int data_nr)
 {
-	return auxch_tx(auxch->dev, auxch->rd, cmd, addr, data, data_nr);
+	return auxch_tx(auxch->dev, auxch->drive, cmd, addr, data, data_nr);
 }
 
 static int
diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.c b/drivers/gpu/drm/nouveau/nouveau_drv.c
index 9791d13c9e3b..e4a7cfe7898d 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drv.c
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.c
@@ -124,6 +124,10 @@ MODULE_PARM_DESC(ctxfw, "Use external HUB/GPC ucode (fermi)\n");
 int nouveau_ctxfw;
 module_param_named(ctxfw, nouveau_ctxfw, int, 0400);
 
+MODULE_PARM_DESC(ctxfw, "Santise DCB table according to MXM-SIS\n");
+int nouveau_mxmdcb = 1;
+module_param_named(mxmdcb, nouveau_mxmdcb, int, 0400);
+
 int nouveau_fbpercrtc;
 #if 0
 module_param_named(fbpercrtc, nouveau_fbpercrtc, int, 0400);
@@ -178,8 +182,11 @@ nouveau_pci_suspend(struct pci_dev *pdev, pm_message_t pm_state)
 	if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
 		return 0;
 
-	NV_INFO(dev, "Disabling fbcon acceleration...\n");
-	nouveau_fbcon_save_disable_accel(dev);
+	NV_INFO(dev, "Disabling display...\n");
+	nouveau_display_fini(dev);
+
+	NV_INFO(dev, "Disabling fbcon...\n");
+	nouveau_fbcon_set_suspend(dev, 1);
 
 	NV_INFO(dev, "Unpinning framebuffer(s)...\n");
 	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
@@ -220,7 +227,7 @@ nouveau_pci_suspend(struct pci_dev *pdev, pm_message_t pm_state)
 
 		ret = dev_priv->eng[e]->fini(dev, e, true);
 		if (ret) {
-			NV_ERROR(dev, "... engine %d failed: %d\n", i, ret);
+			NV_ERROR(dev, "... engine %d failed: %d\n", e, ret);
 			goto out_abort;
 		}
 	}
@@ -246,10 +253,6 @@ nouveau_pci_suspend(struct pci_dev *pdev, pm_message_t pm_state)
 		pci_set_power_state(pdev, PCI_D3hot);
 	}
 
-	console_lock();
-	nouveau_fbcon_set_suspend(dev, 1);
-	console_unlock();
-	nouveau_fbcon_restore_accel(dev);
 	return 0;
 
 out_abort:
@@ -275,8 +278,6 @@ nouveau_pci_resume(struct pci_dev *pdev)
 	if (dev->switch_power_state == DRM_SWITCH_POWER_OFF)
 		return 0;
 
-	nouveau_fbcon_save_disable_accel(dev);
-
 	NV_INFO(dev, "We're back, enabling device...\n");
 	pci_set_power_state(pdev, PCI_D0);
 	pci_restore_state(pdev);
@@ -296,8 +297,6 @@ nouveau_pci_resume(struct pci_dev *pdev)
 	if (ret)
 		return ret;
 
-	nouveau_pm_resume(dev);
-
 	if (dev_priv->gart_info.type == NOUVEAU_GART_AGP) {
 		ret = nouveau_mem_init_agp(dev);
 		if (ret) {
@@ -337,6 +336,8 @@ nouveau_pci_resume(struct pci_dev *pdev)
 		}
 	}
 
+	nouveau_pm_resume(dev);
+
 	NV_INFO(dev, "Restoring mode...\n");
 	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
 		struct nouveau_framebuffer *nouveau_fb;
@@ -358,16 +359,10 @@ nouveau_pci_resume(struct pci_dev *pdev)
 			NV_ERROR(dev, "Could not pin/map cursor.\n");
 	}
 
-	engine->display.init(dev);
-
-	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
-		struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
-		u32 offset = nv_crtc->cursor.nvbo->bo.offset;
+	nouveau_fbcon_set_suspend(dev, 0);
+	nouveau_fbcon_zfill_all(dev);
 
-		nv_crtc->cursor.set_offset(nv_crtc, offset);
-		nv_crtc->cursor.set_pos(nv_crtc, nv_crtc->cursor_saved_x,
-						 nv_crtc->cursor_saved_y);
-	}
+	nouveau_display_init(dev);
 
 	/* Force CLUT to get re-loaded during modeset */
 	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
@@ -376,18 +371,35 @@ nouveau_pci_resume(struct pci_dev *pdev)
 		nv_crtc->lut.depth = 0;
 	}
 
-	console_lock();
-	nouveau_fbcon_set_suspend(dev, 0);
-	console_unlock();
+	drm_helper_resume_force_mode(dev);
 
-	nouveau_fbcon_zfill_all(dev);
+	list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+		struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
+		u32 offset = nv_crtc->cursor.nvbo->bo.offset;
 
-	drm_helper_resume_force_mode(dev);
+		nv_crtc->cursor.set_offset(nv_crtc, offset);
+		nv_crtc->cursor.set_pos(nv_crtc, nv_crtc->cursor_saved_x,
+						 nv_crtc->cursor_saved_y);
+	}
 
-	nouveau_fbcon_restore_accel(dev);
 	return 0;
 }
 
+static const struct file_operations nouveau_driver_fops = {
+	.owner = THIS_MODULE,
+	.open = drm_open,
+	.release = drm_release,
+	.unlocked_ioctl = drm_ioctl,
+	.mmap = nouveau_ttm_mmap,
+	.poll = drm_poll,
+	.fasync = drm_fasync,
+	.read = drm_read,
+#if defined(CONFIG_COMPAT)
+	.compat_ioctl = nouveau_compat_ioctl,
+#endif
+	.llseek = noop_llseek,
+};
+
 static struct drm_driver driver = {
 	.driver_features =
 		DRIVER_USE_AGP | DRIVER_PCI_DMA | DRIVER_SG |
@@ -413,21 +425,7 @@ static struct drm_driver driver = {
 	.disable_vblank = nouveau_vblank_disable,
 	.reclaim_buffers = drm_core_reclaim_buffers,
 	.ioctls = nouveau_ioctls,
-	.fops = {
-		.owner = THIS_MODULE,
-		.open = drm_open,
-		.release = drm_release,
-		.unlocked_ioctl = drm_ioctl,
-		.mmap = nouveau_ttm_mmap,
-		.poll = drm_poll,
-		.fasync = drm_fasync,
-		.read = drm_read,
-#if defined(CONFIG_COMPAT)
-		.compat_ioctl = nouveau_compat_ioctl,
-#endif
-		.llseek = noop_llseek,
-	},
-
+	.fops = &nouveau_driver_fops,
 	.gem_init_object = nouveau_gem_object_new,
 	.gem_free_object = nouveau_gem_object_del,
 	.gem_open_object = nouveau_gem_object_open,
diff --git a/drivers/gpu/drm/nouveau/nouveau_drv.h b/drivers/gpu/drm/nouveau/nouveau_drv.h
index 4c0be3a4ed88..38134a9c7578 100644
--- a/drivers/gpu/drm/nouveau/nouveau_drv.h
+++ b/drivers/gpu/drm/nouveau/nouveau_drv.h
@@ -163,6 +163,9 @@ enum nouveau_flags {
 #define NVOBJ_ENGINE_COPY0	3
 #define NVOBJ_ENGINE_COPY1	4
 #define NVOBJ_ENGINE_MPEG	5
+#define NVOBJ_ENGINE_PPP	NVOBJ_ENGINE_MPEG
+#define NVOBJ_ENGINE_BSP	6
+#define NVOBJ_ENGINE_VP		7
 #define NVOBJ_ENGINE_DISPLAY	15
 #define NVOBJ_ENGINE_NR		16
 
@@ -229,6 +232,7 @@ struct nouveau_channel {
 	/* mapping of the regs controlling the fifo */
 	void __iomem *user;
 	uint32_t user_get;
+	uint32_t user_get_hi;
 	uint32_t user_put;
 
 	/* Fencing */
@@ -246,7 +250,7 @@ struct nouveau_channel {
 	struct nouveau_gpuobj *pushbuf;
 	struct nouveau_bo     *pushbuf_bo;
 	struct nouveau_vma     pushbuf_vma;
-	uint32_t               pushbuf_base;
+	uint64_t               pushbuf_base;
 
 	/* Notifier memory */
 	struct nouveau_bo *notifier_bo;
@@ -393,24 +397,25 @@ struct nouveau_display_engine {
 	int (*early_init)(struct drm_device *);
 	void (*late_takedown)(struct drm_device *);
 	int (*create)(struct drm_device *);
-	int (*init)(struct drm_device *);
 	void (*destroy)(struct drm_device *);
+	int (*init)(struct drm_device *);
+	void (*fini)(struct drm_device *);
+
+	struct drm_property *dithering_mode;
+	struct drm_property *dithering_depth;
+	struct drm_property *underscan_property;
+	struct drm_property *underscan_hborder_property;
+	struct drm_property *underscan_vborder_property;
 };
 
 struct nouveau_gpio_engine {
-	void *priv;
-
-	int  (*init)(struct drm_device *);
-	void (*takedown)(struct drm_device *);
-
-	int  (*get)(struct drm_device *, enum dcb_gpio_tag);
-	int  (*set)(struct drm_device *, enum dcb_gpio_tag, int state);
-
-	int  (*irq_register)(struct drm_device *, enum dcb_gpio_tag,
-			     void (*)(void *, int), void *);
-	void (*irq_unregister)(struct drm_device *, enum dcb_gpio_tag,
-			       void (*)(void *, int), void *);
-	bool (*irq_enable)(struct drm_device *, enum dcb_gpio_tag, bool on);
+	spinlock_t lock;
+	struct list_head isr;
+	int (*init)(struct drm_device *);
+	void (*fini)(struct drm_device *);
+	int (*drive)(struct drm_device *, int line, int dir, int out);
+	int (*sense)(struct drm_device *, int line);
+	void (*irq_enable)(struct drm_device *, int line, bool);
 };
 
 struct nouveau_pm_voltage_level {
@@ -484,7 +489,7 @@ struct nouveau_pm_level {
 	u32 copy;
 	u32 daemon;
 	u32 vdec;
-	u32 unk05;	/* nv50:nva3, roughly.. */
+	u32 dom6;
 	u32 unka0;	/* nva3:nvc0 */
 	u32 hub01;	/* nvc0- */
 	u32 hub06;	/* nvc0- */
@@ -518,6 +523,12 @@ struct nouveau_pm_memtimings {
 	int nr_timing;
 };
 
+struct nouveau_pm_fan {
+	u32 min_duty;
+	u32 max_duty;
+	u32 pwm_freq;
+};
+
 struct nouveau_pm_engine {
 	struct nouveau_pm_voltage voltage;
 	struct nouveau_pm_level perflvl[NOUVEAU_PM_MAX_LEVEL];
@@ -525,6 +536,8 @@ struct nouveau_pm_engine {
 	struct nouveau_pm_memtimings memtimings;
 	struct nouveau_pm_temp_sensor_constants sensor_constants;
 	struct nouveau_pm_threshold_temp threshold_temp;
+	struct nouveau_pm_fan fan;
+	u32 pwm_divisor;
 
 	struct nouveau_pm_level boot;
 	struct nouveau_pm_level *cur;
@@ -532,19 +545,14 @@ struct nouveau_pm_engine {
 	struct device *hwmon;
 	struct notifier_block acpi_nb;
 
-	int (*clock_get)(struct drm_device *, u32 id);
-	void *(*clock_pre)(struct drm_device *, struct nouveau_pm_level *,
-			   u32 id, int khz);
-	void (*clock_set)(struct drm_device *, void *);
-
 	int  (*clocks_get)(struct drm_device *, struct nouveau_pm_level *);
 	void *(*clocks_pre)(struct drm_device *, struct nouveau_pm_level *);
-	void (*clocks_set)(struct drm_device *, void *);
+	int (*clocks_set)(struct drm_device *, void *);
 
 	int (*voltage_get)(struct drm_device *);
 	int (*voltage_set)(struct drm_device *, int voltage);
-	int (*fanspeed_get)(struct drm_device *);
-	int (*fanspeed_set)(struct drm_device *, int fanspeed);
+	int (*pwm_get)(struct drm_device *, int line, u32*, u32*);
+	int (*pwm_set)(struct drm_device *, int line, u32, u32);
 	int (*temp_get)(struct drm_device *);
 };
 
@@ -780,6 +788,8 @@ struct drm_nouveau_private {
 	struct nouveau_vm *chan_vm;
 
 	struct nvbios vbios;
+	u8 *mxms;
+	struct list_head i2c_ports;
 
 	struct nv04_mode_state mode_reg;
 	struct nv04_mode_state saved_reg;
@@ -850,6 +860,7 @@ extern char *nouveau_perflvl;
 extern int nouveau_perflvl_wr;
 extern int nouveau_msi;
 extern int nouveau_ctxfw;
+extern int nouveau_mxmdcb;
 
 extern int nouveau_pci_suspend(struct pci_dev *pdev, pm_message_t pm_state);
 extern int nouveau_pci_resume(struct pci_dev *pdev);
@@ -1000,7 +1011,10 @@ extern int nouveau_sgdma_init(struct drm_device *);
 extern void nouveau_sgdma_takedown(struct drm_device *);
 extern uint32_t nouveau_sgdma_get_physical(struct drm_device *,
 					   uint32_t offset);
-extern struct ttm_backend *nouveau_sgdma_init_ttm(struct drm_device *);
+extern struct ttm_tt *nouveau_sgdma_create_ttm(struct ttm_bo_device *bdev,
+					       unsigned long size,
+					       uint32_t page_flags,
+					       struct page *dummy_read_page);
 
 /* nouveau_debugfs.c */
 #if defined(CONFIG_DRM_NOUVEAU_DEBUG)
@@ -1072,8 +1086,6 @@ extern int nouveau_run_vbios_init(struct drm_device *);
 extern void nouveau_bios_run_init_table(struct drm_device *, uint16_t table,
 					struct dcb_entry *, int crtc);
 extern void nouveau_bios_init_exec(struct drm_device *, uint16_t table);
-extern struct dcb_gpio_entry *nouveau_bios_gpio_entry(struct drm_device *,
-						      enum dcb_gpio_tag);
 extern struct dcb_connector_table_entry *
 nouveau_bios_connector_entry(struct drm_device *, int index);
 extern u32 get_pll_register(struct drm_device *, enum pll_types);
@@ -1091,11 +1103,18 @@ extern int call_lvds_script(struct drm_device *, struct dcb_entry *, int head,
 			    enum LVDS_script, int pxclk);
 bool bios_encoder_match(struct dcb_entry *, u32 hash);
 
+/* nouveau_mxm.c */
+int  nouveau_mxm_init(struct drm_device *dev);
+void nouveau_mxm_fini(struct drm_device *dev);
+
 /* nouveau_ttm.c */
 int nouveau_ttm_global_init(struct drm_nouveau_private *);
 void nouveau_ttm_global_release(struct drm_nouveau_private *);
 int nouveau_ttm_mmap(struct file *, struct vm_area_struct *);
 
+/* nouveau_hdmi.c */
+void nouveau_hdmi_mode_set(struct drm_encoder *, struct drm_display_mode *);
+
 /* nouveau_dp.c */
 int nouveau_dp_auxch(struct nouveau_i2c_chan *auxch, int cmd, int addr,
 		     uint8_t *data, int data_nr);
@@ -1222,6 +1241,9 @@ extern int  nvc0_graph_isr_chid(struct drm_device *dev, u64 inst);
 /* nv84_crypt.c */
 extern int  nv84_crypt_create(struct drm_device *);
 
+/* nv98_crypt.c */
+extern int  nv98_crypt_create(struct drm_device *dev);
+
 /* nva3_copy.c */
 extern int  nva3_copy_create(struct drm_device *dev);
 
@@ -1234,6 +1256,17 @@ extern int  nv31_mpeg_create(struct drm_device *dev);
 /* nv50_mpeg.c */
 extern int  nv50_mpeg_create(struct drm_device *dev);
 
+/* nv84_bsp.c */
+/* nv98_bsp.c */
+extern int  nv84_bsp_create(struct drm_device *dev);
+
+/* nv84_vp.c */
+/* nv98_vp.c */
+extern int  nv84_vp_create(struct drm_device *dev);
+
+/* nv98_ppp.c */
+extern int  nv98_ppp_create(struct drm_device *dev);
+
 /* nv04_instmem.c */
 extern int  nv04_instmem_init(struct drm_device *);
 extern void nv04_instmem_takedown(struct drm_device *);
@@ -1311,13 +1344,19 @@ extern int nv17_tv_create(struct drm_connector *, struct dcb_entry *);
 extern int nv04_display_early_init(struct drm_device *);
 extern void nv04_display_late_takedown(struct drm_device *);
 extern int nv04_display_create(struct drm_device *);
-extern int nv04_display_init(struct drm_device *);
 extern void nv04_display_destroy(struct drm_device *);
+extern int nv04_display_init(struct drm_device *);
+extern void nv04_display_fini(struct drm_device *);
 
 /* nvd0_display.c */
 extern int nvd0_display_create(struct drm_device *);
-extern int nvd0_display_init(struct drm_device *);
 extern void nvd0_display_destroy(struct drm_device *);
+extern int nvd0_display_init(struct drm_device *);
+extern void nvd0_display_fini(struct drm_device *);
+struct nouveau_bo *nvd0_display_crtc_sema(struct drm_device *, int crtc);
+void nvd0_display_flip_stop(struct drm_crtc *);
+int nvd0_display_flip_next(struct drm_crtc *, struct drm_framebuffer *,
+			   struct nouveau_channel *, u32 swap_interval);
 
 /* nv04_crtc.c */
 extern int nv04_crtc_create(struct drm_device *, int index);
@@ -1412,6 +1451,10 @@ extern int nouveau_gem_ioctl_info(struct drm_device *, void *,
 				  struct drm_file *);
 
 /* nouveau_display.c */
+int nouveau_display_create(struct drm_device *dev);
+void nouveau_display_destroy(struct drm_device *dev);
+int nouveau_display_init(struct drm_device *dev);
+void nouveau_display_fini(struct drm_device *dev);
 int nouveau_vblank_enable(struct drm_device *dev, int crtc);
 void nouveau_vblank_disable(struct drm_device *dev, int crtc);
 int nouveau_crtc_page_flip(struct drm_crtc *crtc, struct drm_framebuffer *fb,
@@ -1426,23 +1469,22 @@ int nouveau_display_dumb_destroy(struct drm_file *, struct drm_device *,
 				 uint32_t handle);
 
 /* nv10_gpio.c */
-int nv10_gpio_get(struct drm_device *dev, enum dcb_gpio_tag tag);
-int nv10_gpio_set(struct drm_device *dev, enum dcb_gpio_tag tag, int state);
+int nv10_gpio_init(struct drm_device *dev);
+void nv10_gpio_fini(struct drm_device *dev);
+int nv10_gpio_drive(struct drm_device *dev, int line, int dir, int out);
+int nv10_gpio_sense(struct drm_device *dev, int line);
+void nv10_gpio_irq_enable(struct drm_device *, int line, bool on);
 
 /* nv50_gpio.c */
 int nv50_gpio_init(struct drm_device *dev);
 void nv50_gpio_fini(struct drm_device *dev);
-int nv50_gpio_get(struct drm_device *dev, enum dcb_gpio_tag tag);
-int nv50_gpio_set(struct drm_device *dev, enum dcb_gpio_tag tag, int state);
-int nvd0_gpio_get(struct drm_device *dev, enum dcb_gpio_tag tag);
-int nvd0_gpio_set(struct drm_device *dev, enum dcb_gpio_tag tag, int state);
-int  nv50_gpio_irq_register(struct drm_device *, enum dcb_gpio_tag,
-			    void (*)(void *, int), void *);
-void nv50_gpio_irq_unregister(struct drm_device *, enum dcb_gpio_tag,
-			      void (*)(void *, int), void *);
-bool nv50_gpio_irq_enable(struct drm_device *, enum dcb_gpio_tag, bool on);
-
-/* nv50_calc. */
+int nv50_gpio_drive(struct drm_device *dev, int line, int dir, int out);
+int nv50_gpio_sense(struct drm_device *dev, int line);
+void nv50_gpio_irq_enable(struct drm_device *, int line, bool on);
+int nvd0_gpio_drive(struct drm_device *dev, int line, int dir, int out);
+int nvd0_gpio_sense(struct drm_device *dev, int line);
+
+/* nv50_calc.c */
 int nv50_calc_pll(struct drm_device *, struct pll_lims *, int clk,
 		  int *N1, int *M1, int *N2, int *M2, int *P);
 int nva3_calc_pll(struct drm_device *, struct pll_lims *,
@@ -1565,6 +1607,13 @@ extern void nv_wo32(struct nouveau_gpuobj *, u32 offset, u32 val);
 #define NV_TRACEWARN(d, fmt, arg...) NV_PRINTK(KERN_NOTICE, d, fmt, ##arg)
 #define NV_TRACE(d, fmt, arg...) NV_PRINTK(KERN_INFO, d, fmt, ##arg)
 #define NV_WARN(d, fmt, arg...) NV_PRINTK(KERN_WARNING, d, fmt, ##arg)
+#define NV_WARNONCE(d, fmt, arg...) do {                                       \
+	static int _warned = 0;                                                \
+	if (!_warned) {                                                        \
+		NV_WARN(d, fmt, ##arg);                                        \
+		_warned = 1;                                                   \
+	}                                                                      \
+} while(0)
 
 /* nouveau_reg_debug bitmask */
 enum {
diff --git a/drivers/gpu/drm/nouveau/nouveau_fb.h b/drivers/gpu/drm/nouveau/nouveau_fb.h
index 95c843e684bb..f3fb649fe454 100644
--- a/drivers/gpu/drm/nouveau/nouveau_fb.h
+++ b/drivers/gpu/drm/nouveau/nouveau_fb.h
@@ -42,8 +42,6 @@ nouveau_framebuffer(struct drm_framebuffer *fb)
 	return container_of(fb, struct nouveau_framebuffer, base);
 }
 
-extern const struct drm_mode_config_funcs nouveau_mode_config_funcs;
-
 int nouveau_framebuffer_init(struct drm_device *dev, struct nouveau_framebuffer *nouveau_fb,
-			     struct drm_mode_fb_cmd *mode_cmd, struct nouveau_bo *nvbo);
+			     struct drm_mode_fb_cmd2 *mode_cmd, struct nouveau_bo *nvbo);
 #endif /* __NOUVEAU_FB_H__ */
diff --git a/drivers/gpu/drm/nouveau/nouveau_fbcon.c b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
index 3a4cc32b9e44..9892218d7452 100644
--- a/drivers/gpu/drm/nouveau/nouveau_fbcon.c
+++ b/drivers/gpu/drm/nouveau/nouveau_fbcon.c
@@ -36,6 +36,7 @@
 #include <linux/init.h>
 #include <linux/screen_info.h>
 #include <linux/vga_switcheroo.h>
+#include <linux/console.h>
 
 #include "drmP.h"
 #include "drm.h"
@@ -281,7 +282,7 @@ nouveau_fbcon_create(struct nouveau_fbdev *nfbdev,
 	struct nouveau_framebuffer *nouveau_fb;
 	struct nouveau_channel *chan;
 	struct nouveau_bo *nvbo;
-	struct drm_mode_fb_cmd mode_cmd;
+	struct drm_mode_fb_cmd2 mode_cmd;
 	struct pci_dev *pdev = dev->pdev;
 	struct device *device = &pdev->dev;
 	int size, ret;
@@ -289,12 +290,13 @@ nouveau_fbcon_create(struct nouveau_fbdev *nfbdev,
 	mode_cmd.width = sizes->surface_width;
 	mode_cmd.height = sizes->surface_height;
 
-	mode_cmd.bpp = sizes->surface_bpp;
-	mode_cmd.pitch = mode_cmd.width * (mode_cmd.bpp >> 3);
-	mode_cmd.pitch = roundup(mode_cmd.pitch, 256);
-	mode_cmd.depth = sizes->surface_depth;
+	mode_cmd.pitches[0] = mode_cmd.width * (sizes->surface_bpp >> 3);
+	mode_cmd.pitches[0] = roundup(mode_cmd.pitches[0], 256);
 
-	size = mode_cmd.pitch * mode_cmd.height;
+	mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
+							  sizes->surface_depth);
+
+	size = mode_cmd.pitches[0] * mode_cmd.height;
 	size = roundup(size, PAGE_SIZE);
 
 	ret = nouveau_gem_new(dev, size, 0, NOUVEAU_GEM_DOMAIN_VRAM,
@@ -369,7 +371,7 @@ nouveau_fbcon_create(struct nouveau_fbdev *nfbdev,
 	info->screen_base = nvbo_kmap_obj_iovirtual(nouveau_fb->nvbo);
 	info->screen_size = size;
 
-	drm_fb_helper_fill_fix(info, fb->pitch, fb->depth);
+	drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
 	drm_fb_helper_fill_var(info, &nfbdev->helper, sizes->fb_width, sizes->fb_height);
 
 	/* Set aperture base/size for vesafb takeover */
@@ -547,7 +549,13 @@ void nouveau_fbcon_restore_accel(struct drm_device *dev)
 void nouveau_fbcon_set_suspend(struct drm_device *dev, int state)
 {
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	console_lock();
+	if (state == 0)
+		nouveau_fbcon_save_disable_accel(dev);
 	fb_set_suspend(dev_priv->nfbdev->helper.fbdev, state);
+	if (state == 1)
+		nouveau_fbcon_restore_accel(dev);
+	console_unlock();
 }
 
 void nouveau_fbcon_zfill_all(struct drm_device *dev)
diff --git a/drivers/gpu/drm/nouveau/nouveau_gpio.c b/drivers/gpu/drm/nouveau/nouveau_gpio.c
new file mode 100644
index 000000000000..a580cc62337a
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nouveau_gpio.c
@@ -0,0 +1,400 @@
+/*
+ * Copyright 2011 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+
+#include "drmP.h"
+#include "nouveau_drv.h"
+#include "nouveau_i2c.h"
+#include "nouveau_gpio.h"
+
+static u8 *
+dcb_gpio_table(struct drm_device *dev)
+{
+	u8 *dcb = dcb_table(dev);
+	if (dcb) {
+		if (dcb[0] >= 0x30 && dcb[1] >= 0x0c)
+			return ROMPTR(dev, dcb[0x0a]);
+		if (dcb[0] >= 0x22 && dcb[-1] >= 0x13)
+			return ROMPTR(dev, dcb[-15]);
+	}
+	return NULL;
+}
+
+static u8 *
+dcb_gpio_entry(struct drm_device *dev, int idx, int ent, u8 *version)
+{
+	u8 *table = dcb_gpio_table(dev);
+	if (table) {
+		*version = table[0];
+		if (*version < 0x30 && ent < table[2])
+			return table + 3 + (ent * table[1]);
+		else if (ent < table[2])
+			return table + table[1] + (ent * table[3]);
+	}
+	return NULL;
+}
+
+int
+nouveau_gpio_drive(struct drm_device *dev, int idx, int line, int dir, int out)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
+
+	return pgpio->drive ? pgpio->drive(dev, line, dir, out) : -ENODEV;
+}
+
+int
+nouveau_gpio_sense(struct drm_device *dev, int idx, int line)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
+
+	return pgpio->sense ? pgpio->sense(dev, line) : -ENODEV;
+}
+
+int
+nouveau_gpio_find(struct drm_device *dev, int idx, u8 func, u8 line,
+		  struct gpio_func *gpio)
+{
+	u8 *table, *entry, version;
+	int i = -1;
+
+	if (line == 0xff && func == 0xff)
+		return -EINVAL;
+
+	while ((entry = dcb_gpio_entry(dev, idx, ++i, &version))) {
+		if (version < 0x40) {
+			u16 data = ROM16(entry[0]);
+			*gpio = (struct gpio_func) {
+				.line = (data & 0x001f) >> 0,
+				.func = (data & 0x07e0) >> 5,
+				.log[0] = (data & 0x1800) >> 11,
+				.log[1] = (data & 0x6000) >> 13,
+			};
+		} else
+		if (version < 0x41) {
+			*gpio = (struct gpio_func) {
+				.line = entry[0] & 0x1f,
+				.func = entry[1],
+				.log[0] = (entry[3] & 0x18) >> 3,
+				.log[1] = (entry[3] & 0x60) >> 5,
+			};
+		} else {
+			*gpio = (struct gpio_func) {
+				.line = entry[0] & 0x3f,
+				.func = entry[1],
+				.log[0] = (entry[4] & 0x30) >> 4,
+				.log[1] = (entry[4] & 0xc0) >> 6,
+			};
+		}
+
+		if ((line == 0xff || line == gpio->line) &&
+		    (func == 0xff || func == gpio->func))
+			return 0;
+	}
+
+	/* DCB 2.2, fixed TVDAC GPIO data */
+	if ((table = dcb_table(dev)) && table[0] >= 0x22) {
+		if (func == DCB_GPIO_TVDAC0) {
+			*gpio = (struct gpio_func) {
+				.func = DCB_GPIO_TVDAC0,
+				.line = table[-4] >> 4,
+				.log[0] = !!(table[-5] & 2),
+				.log[1] =  !(table[-5] & 2),
+			};
+			return 0;
+		}
+	}
+
+	/* Apple iMac G4 NV18 */
+	if (nv_match_device(dev, 0x0189, 0x10de, 0x0010)) {
+		if (func == DCB_GPIO_TVDAC0) {
+			*gpio = (struct gpio_func) {
+				.func = DCB_GPIO_TVDAC0,
+				.line = 4,
+				.log[0] = 0,
+				.log[1] = 1,
+			};
+			return 0;
+		}
+	}
+
+	return -EINVAL;
+}
+
+int
+nouveau_gpio_set(struct drm_device *dev, int idx, u8 tag, u8 line, int state)
+{
+	struct gpio_func gpio;
+	int ret;
+
+	ret = nouveau_gpio_find(dev, idx, tag, line, &gpio);
+	if (ret == 0) {
+		int dir = !!(gpio.log[state] & 0x02);
+		int out = !!(gpio.log[state] & 0x01);
+		ret = nouveau_gpio_drive(dev, idx, gpio.line, dir, out);
+	}
+
+	return ret;
+}
+
+int
+nouveau_gpio_get(struct drm_device *dev, int idx, u8 tag, u8 line)
+{
+	struct gpio_func gpio;
+	int ret;
+
+	ret = nouveau_gpio_find(dev, idx, tag, line, &gpio);
+	if (ret == 0) {
+		ret = nouveau_gpio_sense(dev, idx, gpio.line);
+		if (ret >= 0)
+			ret = (ret == (gpio.log[1] & 1));
+	}
+
+	return ret;
+}
+
+int
+nouveau_gpio_irq(struct drm_device *dev, int idx, u8 tag, u8 line, bool on)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
+	struct gpio_func gpio;
+	int ret;
+
+	ret = nouveau_gpio_find(dev, idx, tag, line, &gpio);
+	if (ret == 0) {
+		if (idx == 0 && pgpio->irq_enable)
+			pgpio->irq_enable(dev, gpio.line, on);
+		else
+			ret = -ENODEV;
+	}
+
+	return ret;
+}
+
+struct gpio_isr {
+	struct drm_device *dev;
+	struct list_head head;
+	struct work_struct work;
+	int idx;
+	struct gpio_func func;
+	void (*handler)(void *, int);
+	void *data;
+	bool inhibit;
+};
+
+static void
+nouveau_gpio_isr_bh(struct work_struct *work)
+{
+	struct gpio_isr *isr = container_of(work, struct gpio_isr, work);
+	struct drm_device *dev = isr->dev;
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
+	unsigned long flags;
+	int state;
+
+	state = nouveau_gpio_get(dev, isr->idx, isr->func.func, isr->func.line);
+	if (state >= 0)
+		isr->handler(isr->data, state);
+
+	spin_lock_irqsave(&pgpio->lock, flags);
+	isr->inhibit = false;
+	spin_unlock_irqrestore(&pgpio->lock, flags);
+}
+
+void
+nouveau_gpio_isr(struct drm_device *dev, int idx, u32 line_mask)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
+	struct gpio_isr *isr;
+
+	if (idx != 0)
+		return;
+
+	spin_lock(&pgpio->lock);
+	list_for_each_entry(isr, &pgpio->isr, head) {
+		if (line_mask & (1 << isr->func.line)) {
+			if (isr->inhibit)
+				continue;
+			isr->inhibit = true;
+			schedule_work(&isr->work);
+		}
+	}
+	spin_unlock(&pgpio->lock);
+}
+
+int
+nouveau_gpio_isr_add(struct drm_device *dev, int idx, u8 tag, u8 line,
+		     void (*handler)(void *, int), void *data)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
+	struct gpio_isr *isr;
+	unsigned long flags;
+	int ret;
+
+	isr = kzalloc(sizeof(*isr), GFP_KERNEL);
+	if (!isr)
+		return -ENOMEM;
+
+	ret = nouveau_gpio_find(dev, idx, tag, line, &isr->func);
+	if (ret) {
+		kfree(isr);
+		return ret;
+	}
+
+	INIT_WORK(&isr->work, nouveau_gpio_isr_bh);
+	isr->dev = dev;
+	isr->handler = handler;
+	isr->data = data;
+	isr->idx = idx;
+
+	spin_lock_irqsave(&pgpio->lock, flags);
+	list_add(&isr->head, &pgpio->isr);
+	spin_unlock_irqrestore(&pgpio->lock, flags);
+	return 0;
+}
+
+void
+nouveau_gpio_isr_del(struct drm_device *dev, int idx, u8 tag, u8 line,
+		     void (*handler)(void *, int), void *data)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
+	struct gpio_isr *isr, *tmp;
+	struct gpio_func func;
+	unsigned long flags;
+	LIST_HEAD(tofree);
+	int ret;
+
+	ret = nouveau_gpio_find(dev, idx, tag, line, &func);
+	if (ret == 0) {
+		spin_lock_irqsave(&pgpio->lock, flags);
+		list_for_each_entry_safe(isr, tmp, &pgpio->isr, head) {
+			if (memcmp(&isr->func, &func, sizeof(func)) ||
+			    isr->idx != idx ||
+			    isr->handler != handler || isr->data != data)
+				continue;
+			list_move(&isr->head, &tofree);
+		}
+		spin_unlock_irqrestore(&pgpio->lock, flags);
+
+		list_for_each_entry_safe(isr, tmp, &tofree, head) {
+			flush_work_sync(&isr->work);
+			kfree(isr);
+		}
+	}
+}
+
+int
+nouveau_gpio_create(struct drm_device *dev)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
+
+	INIT_LIST_HEAD(&pgpio->isr);
+	spin_lock_init(&pgpio->lock);
+
+	return nouveau_gpio_init(dev);
+}
+
+void
+nouveau_gpio_destroy(struct drm_device *dev)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
+
+	nouveau_gpio_fini(dev);
+	BUG_ON(!list_empty(&pgpio->isr));
+}
+
+int
+nouveau_gpio_init(struct drm_device *dev)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
+	int ret = 0;
+
+	if (pgpio->init)
+		ret = pgpio->init(dev);
+
+	return ret;
+}
+
+void
+nouveau_gpio_fini(struct drm_device *dev)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
+
+	if (pgpio->fini)
+		pgpio->fini(dev);
+}
+
+void
+nouveau_gpio_reset(struct drm_device *dev)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	u8 *entry, version;
+	int ent = -1;
+
+	while ((entry = dcb_gpio_entry(dev, 0, ++ent, &version))) {
+		u8 func = 0xff, line, defs, unk0, unk1;
+		if (version >= 0x41) {
+			defs = !!(entry[0] & 0x80);
+			line = entry[0] & 0x3f;
+			func = entry[1];
+			unk0 = entry[2];
+			unk1 = entry[3] & 0x1f;
+		} else
+		if (version >= 0x40) {
+			line = entry[0] & 0x1f;
+			func = entry[1];
+			defs = !!(entry[3] & 0x01);
+			unk0 = !!(entry[3] & 0x02);
+			unk1 = !!(entry[3] & 0x04);
+		} else {
+			break;
+		}
+
+		if (func == 0xff)
+			continue;
+
+		nouveau_gpio_func_set(dev, func, defs);
+
+		if (dev_priv->card_type >= NV_D0) {
+			nv_mask(dev, 0x00d610 + (line * 4), 0xff, unk0);
+			if (unk1--)
+				nv_mask(dev, 0x00d640 + (unk1 * 4), 0xff, line);
+		} else
+		if (dev_priv->card_type >= NV_50) {
+			static const u32 regs[] = { 0xe100, 0xe28c };
+			u32 val = (unk1 << 16) | unk0;
+			u32 reg = regs[line >> 4]; line &= 0x0f;
+
+			nv_mask(dev, reg, 0x00010001 << line, val << line);
+		}
+	}
+}
diff --git a/drivers/gpu/drm/nouveau/nouveau_gpio.h b/drivers/gpu/drm/nouveau/nouveau_gpio.h
new file mode 100644
index 000000000000..64c5cb077ace
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nouveau_gpio.h
@@ -0,0 +1,71 @@
+/*
+ * Copyright 2011 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef __NOUVEAU_GPIO_H__
+#define __NOUVEAU_GPIO_H__
+
+struct gpio_func {
+	u8 func;
+	u8 line;
+	u8 log[2];
+};
+
+/* nouveau_gpio.c */
+int  nouveau_gpio_create(struct drm_device *);
+void nouveau_gpio_destroy(struct drm_device *);
+int  nouveau_gpio_init(struct drm_device *);
+void nouveau_gpio_fini(struct drm_device *);
+void nouveau_gpio_reset(struct drm_device *);
+int  nouveau_gpio_drive(struct drm_device *, int idx, int line,
+			int dir, int out);
+int  nouveau_gpio_sense(struct drm_device *, int idx, int line);
+int  nouveau_gpio_find(struct drm_device *, int idx, u8 tag, u8 line,
+		       struct gpio_func *);
+int  nouveau_gpio_set(struct drm_device *, int idx, u8 tag, u8 line, int state);
+int  nouveau_gpio_get(struct drm_device *, int idx, u8 tag, u8 line);
+int  nouveau_gpio_irq(struct drm_device *, int idx, u8 tag, u8 line, bool on);
+void nouveau_gpio_isr(struct drm_device *, int idx, u32 mask);
+int  nouveau_gpio_isr_add(struct drm_device *, int idx, u8 tag, u8 line,
+			  void (*)(void *, int state), void *data);
+void nouveau_gpio_isr_del(struct drm_device *, int idx, u8 tag, u8 line,
+			  void (*)(void *, int state), void *data);
+
+static inline bool
+nouveau_gpio_func_valid(struct drm_device *dev, u8 tag)
+{
+	struct gpio_func func;
+	return (nouveau_gpio_find(dev, 0, tag, 0xff, &func)) == 0;
+}
+
+static inline int
+nouveau_gpio_func_set(struct drm_device *dev, u8 tag, int state)
+{
+	return nouveau_gpio_set(dev, 0, tag, 0xff, state);
+}
+
+static inline int
+nouveau_gpio_func_get(struct drm_device *dev, u8 tag)
+{
+	return nouveau_gpio_get(dev, 0, tag, 0xff);
+}
+
+#endif
diff --git a/drivers/gpu/drm/nouveau/nouveau_hdmi.c b/drivers/gpu/drm/nouveau/nouveau_hdmi.c
new file mode 100644
index 000000000000..59ea1c14eca0
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nouveau_hdmi.c
@@ -0,0 +1,258 @@
+/*
+ * Copyright 2011 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+
+#include "drmP.h"
+#include "nouveau_drv.h"
+#include "nouveau_connector.h"
+#include "nouveau_encoder.h"
+#include "nouveau_crtc.h"
+
+static bool
+hdmi_sor(struct drm_encoder *encoder)
+{
+	struct drm_nouveau_private *dev_priv = encoder->dev->dev_private;
+	if (dev_priv->chipset < 0xa3)
+		return false;
+	return true;
+}
+
+static inline u32
+hdmi_base(struct drm_encoder *encoder)
+{
+	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
+	struct nouveau_crtc *nv_crtc = nouveau_crtc(nv_encoder->crtc);
+	if (!hdmi_sor(encoder))
+		return 0x616500 + (nv_crtc->index * 0x800);
+	return 0x61c500 + (nv_encoder->or * 0x800);
+}
+
+static void
+hdmi_wr32(struct drm_encoder *encoder, u32 reg, u32 val)
+{
+	nv_wr32(encoder->dev, hdmi_base(encoder) + reg, val);
+}
+
+static u32
+hdmi_rd32(struct drm_encoder *encoder, u32 reg)
+{
+	return nv_rd32(encoder->dev, hdmi_base(encoder) + reg);
+}
+
+static u32
+hdmi_mask(struct drm_encoder *encoder, u32 reg, u32 mask, u32 val)
+{
+	u32 tmp = hdmi_rd32(encoder, reg);
+	hdmi_wr32(encoder, reg, (tmp & ~mask) | val);
+	return tmp;
+}
+
+static void
+nouveau_audio_disconnect(struct drm_encoder *encoder)
+{
+	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
+	struct drm_device *dev = encoder->dev;
+	u32 or = nv_encoder->or * 0x800;
+
+	if (hdmi_sor(encoder)) {
+		nv_mask(dev, 0x61c448 + or, 0x00000003, 0x00000000);
+	}
+}
+
+static void
+nouveau_audio_mode_set(struct drm_encoder *encoder,
+		       struct drm_display_mode *mode)
+{
+	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
+	struct nouveau_connector *nv_connector;
+	struct drm_device *dev = encoder->dev;
+	u32 or = nv_encoder->or * 0x800;
+	int i;
+
+	nv_connector = nouveau_encoder_connector_get(nv_encoder);
+	if (!drm_detect_monitor_audio(nv_connector->edid)) {
+		nouveau_audio_disconnect(encoder);
+		return;
+	}
+
+	if (hdmi_sor(encoder)) {
+		nv_mask(dev, 0x61c448 + or, 0x00000001, 0x00000001);
+
+		drm_edid_to_eld(&nv_connector->base, nv_connector->edid);
+		if (nv_connector->base.eld[0]) {
+			u8 *eld = nv_connector->base.eld;
+			for (i = 0; i < eld[2] * 4; i++)
+				nv_wr32(dev, 0x61c440 + or, (i << 8) | eld[i]);
+			for (i = eld[2] * 4; i < 0x60; i++)
+				nv_wr32(dev, 0x61c440 + or, (i << 8) | 0x00);
+			nv_mask(dev, 0x61c448 + or, 0x00000002, 0x00000002);
+		}
+	}
+}
+
+static void
+nouveau_hdmi_infoframe(struct drm_encoder *encoder, u32 ctrl, u8 *frame)
+{
+	/* calculate checksum for the infoframe */
+	u8 sum = 0, i;
+	for (i = 0; i < frame[2]; i++)
+		sum += frame[i];
+	frame[3] = 256 - sum;
+
+	/* disable infoframe, and write header */
+	hdmi_mask(encoder, ctrl + 0x00, 0x00000001, 0x00000000);
+	hdmi_wr32(encoder, ctrl + 0x08, *(u32 *)frame & 0xffffff);
+
+	/* register scans tell me the audio infoframe has only one set of
+	 * subpack regs, according to tegra (gee nvidia, it'd be nice if we
+	 * could get those docs too!), the hdmi block pads out the rest of
+	 * the packet on its own.
+	 */
+	if (ctrl == 0x020)
+		frame[2] = 6;
+
+	/* write out checksum and data, weird weird 7 byte register pairs */
+	for (i = 0; i < frame[2] + 1; i += 7) {
+		u32 rsubpack = ctrl + 0x0c + ((i / 7) * 8);
+		u32 *subpack = (u32 *)&frame[3 + i];
+		hdmi_wr32(encoder, rsubpack + 0, subpack[0]);
+		hdmi_wr32(encoder, rsubpack + 4, subpack[1] & 0xffffff);
+	}
+
+	/* enable the infoframe */
+	hdmi_mask(encoder, ctrl, 0x00000001, 0x00000001);
+}
+
+static void
+nouveau_hdmi_video_infoframe(struct drm_encoder *encoder,
+			     struct drm_display_mode *mode)
+{
+	const u8 Y = 0, A = 0, B = 0, S = 0, C = 0, M = 0, R = 0;
+	const u8 ITC = 0, EC = 0, Q = 0, SC = 0, VIC = 0, PR = 0;
+	const u8 bar_top = 0, bar_bottom = 0, bar_left = 0, bar_right = 0;
+	u8 frame[20];
+
+	frame[0x00] = 0x82; /* AVI infoframe */
+	frame[0x01] = 0x02; /* version */
+	frame[0x02] = 0x0d; /* length */
+	frame[0x03] = 0x00;
+	frame[0x04] = (Y << 5) | (A << 4) | (B << 2) | S;
+	frame[0x05] = (C << 6) | (M << 4) | R;
+	frame[0x06] = (ITC << 7) | (EC << 4) | (Q << 2) | SC;
+	frame[0x07] = VIC;
+	frame[0x08] = PR;
+	frame[0x09] = bar_top & 0xff;
+	frame[0x0a] = bar_top >> 8;
+	frame[0x0b] = bar_bottom & 0xff;
+	frame[0x0c] = bar_bottom >> 8;
+	frame[0x0d] = bar_left & 0xff;
+	frame[0x0e] = bar_left >> 8;
+	frame[0x0f] = bar_right & 0xff;
+	frame[0x10] = bar_right >> 8;
+	frame[0x11] = 0x00;
+	frame[0x12] = 0x00;
+	frame[0x13] = 0x00;
+
+	nouveau_hdmi_infoframe(encoder, 0x020, frame);
+}
+
+static void
+nouveau_hdmi_audio_infoframe(struct drm_encoder *encoder,
+			     struct drm_display_mode *mode)
+{
+	const u8 CT = 0x00, CC = 0x01, ceaSS = 0x00, SF = 0x00, FMT = 0x00;
+	const u8 CA = 0x00, DM_INH = 0, LSV = 0x00;
+	u8 frame[12];
+
+	frame[0x00] = 0x84;	/* Audio infoframe */
+	frame[0x01] = 0x01;	/* version */
+	frame[0x02] = 0x0a;	/* length */
+	frame[0x03] = 0x00;
+	frame[0x04] = (CT << 4) | CC;
+	frame[0x05] = (SF << 2) | ceaSS;
+	frame[0x06] = FMT;
+	frame[0x07] = CA;
+	frame[0x08] = (DM_INH << 7) | (LSV << 3);
+	frame[0x09] = 0x00;
+	frame[0x0a] = 0x00;
+	frame[0x0b] = 0x00;
+
+	nouveau_hdmi_infoframe(encoder, 0x000, frame);
+}
+
+static void
+nouveau_hdmi_disconnect(struct drm_encoder *encoder)
+{
+	nouveau_audio_disconnect(encoder);
+
+	/* disable audio and avi infoframes */
+	hdmi_mask(encoder, 0x000, 0x00000001, 0x00000000);
+	hdmi_mask(encoder, 0x020, 0x00000001, 0x00000000);
+
+	/* disable hdmi */
+	hdmi_mask(encoder, 0x0a4, 0x40000000, 0x00000000);
+}
+
+void
+nouveau_hdmi_mode_set(struct drm_encoder *encoder,
+		      struct drm_display_mode *mode)
+{
+	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
+	struct nouveau_connector *nv_connector;
+	struct drm_device *dev = encoder->dev;
+	u32 max_ac_packet, rekey;
+
+	nv_connector = nouveau_encoder_connector_get(nv_encoder);
+	if (!mode || !nv_connector || !nv_connector->edid ||
+	    !drm_detect_hdmi_monitor(nv_connector->edid)) {
+		nouveau_hdmi_disconnect(encoder);
+		return;
+	}
+
+	nouveau_hdmi_video_infoframe(encoder, mode);
+	nouveau_hdmi_audio_infoframe(encoder, mode);
+
+	hdmi_mask(encoder, 0x0d0, 0x00070001, 0x00010001); /* SPARE, HW_CTS */
+	hdmi_mask(encoder, 0x068, 0x00010101, 0x00000000); /* ACR_CTRL, ?? */
+	hdmi_mask(encoder, 0x078, 0x80000000, 0x80000000); /* ACR_0441_ENABLE */
+
+	nv_mask(dev, 0x61733c, 0x00100000, 0x00100000); /* RESETF */
+	nv_mask(dev, 0x61733c, 0x10000000, 0x10000000); /* LOOKUP_EN */
+	nv_mask(dev, 0x61733c, 0x00100000, 0x00000000); /* !RESETF */
+
+	/* value matches nvidia binary driver, and tegra constant */
+	rekey = 56;
+
+	max_ac_packet  = mode->htotal - mode->hdisplay;
+	max_ac_packet -= rekey;
+	max_ac_packet -= 18; /* constant from tegra */
+	max_ac_packet /= 32;
+
+	/* enable hdmi */
+	hdmi_mask(encoder, 0x0a4, 0x5f1f003f, 0x40000000 | /* enable */
+					      0x1f000000 | /* unknown */
+					      max_ac_packet << 16 |
+					      rekey);
+
+	nouveau_audio_mode_set(encoder, mode);
+}
diff --git a/drivers/gpu/drm/nouveau/nouveau_hwsq.h b/drivers/gpu/drm/nouveau/nouveau_hwsq.h
new file mode 100644
index 000000000000..697687593a81
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nouveau_hwsq.h
@@ -0,0 +1,115 @@
+/*
+ * Copyright 2010 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+
+#ifndef __NOUVEAU_HWSQ_H__
+#define __NOUVEAU_HWSQ_H__
+
+struct hwsq_ucode {
+	u8 data[0x200];
+	union {
+		u8  *u08;
+		u16 *u16;
+		u32 *u32;
+	} ptr;
+	u16 len;
+
+	u32 reg;
+	u32 val;
+};
+
+static inline void
+hwsq_init(struct hwsq_ucode *hwsq)
+{
+	hwsq->ptr.u08 = hwsq->data;
+	hwsq->reg = 0xffffffff;
+	hwsq->val = 0xffffffff;
+}
+
+static inline void
+hwsq_fini(struct hwsq_ucode *hwsq)
+{
+	do {
+		*hwsq->ptr.u08++ = 0x7f;
+		hwsq->len = hwsq->ptr.u08 - hwsq->data;
+	} while (hwsq->len & 3);
+	hwsq->ptr.u08 = hwsq->data;
+}
+
+static inline void
+hwsq_usec(struct hwsq_ucode *hwsq, u8 usec)
+{
+	u32 shift = 0;
+	while (usec & ~3) {
+		usec >>= 2;
+		shift++;
+	}
+
+	*hwsq->ptr.u08++ = (shift << 2) | usec;
+}
+
+static inline void
+hwsq_setf(struct hwsq_ucode *hwsq, u8 flag, int val)
+{
+	flag += 0x80;
+	if (val >= 0)
+		flag += 0x20;
+	if (val >= 1)
+		flag += 0x20;
+	*hwsq->ptr.u08++ = flag;
+}
+
+static inline void
+hwsq_op5f(struct hwsq_ucode *hwsq, u8 v0, u8 v1)
+{
+	*hwsq->ptr.u08++ = 0x5f;
+	*hwsq->ptr.u08++ = v0;
+	*hwsq->ptr.u08++ = v1;
+}
+
+static inline void
+hwsq_wr32(struct hwsq_ucode *hwsq, u32 reg, u32 val)
+{
+	if (val != hwsq->val) {
+		if ((val & 0xffff0000) == (hwsq->val & 0xffff0000)) {
+			*hwsq->ptr.u08++ = 0x42;
+			*hwsq->ptr.u16++ = (val & 0x0000ffff);
+		} else {
+			*hwsq->ptr.u08++ = 0xe2;
+			*hwsq->ptr.u32++ = val;
+		}
+
+		hwsq->val = val;
+	}
+
+	if ((reg & 0xffff0000) == (hwsq->reg & 0xffff0000)) {
+		*hwsq->ptr.u08++ = 0x40;
+		*hwsq->ptr.u16++ = (reg & 0x0000ffff);
+	} else {
+		*hwsq->ptr.u08++ = 0xe0;
+		*hwsq->ptr.u32++ = reg;
+	}
+	hwsq->reg = reg;
+}
+
+#endif
diff --git a/drivers/gpu/drm/nouveau/nouveau_i2c.c b/drivers/gpu/drm/nouveau/nouveau_i2c.c
index d39b2202b197..820ae7f52044 100644
--- a/drivers/gpu/drm/nouveau/nouveau_i2c.c
+++ b/drivers/gpu/drm/nouveau/nouveau_i2c.c
@@ -29,262 +29,465 @@
 #include "nouveau_i2c.h"
 #include "nouveau_hw.h"
 
+#define T_TIMEOUT  2200000
+#define T_RISEFALL 1000
+#define T_HOLD     5000
+
 static void
-nv04_i2c_setscl(void *data, int state)
+i2c_drive_scl(void *data, int state)
 {
-	struct nouveau_i2c_chan *i2c = data;
-	struct drm_device *dev = i2c->dev;
-	uint8_t val;
-
-	val = (NVReadVgaCrtc(dev, 0, i2c->wr) & 0xd0) | (state ? 0x20 : 0);
-	NVWriteVgaCrtc(dev, 0, i2c->wr, val | 0x01);
+	struct nouveau_i2c_chan *port = data;
+	if (port->type == 0) {
+		u8 val = NVReadVgaCrtc(port->dev, 0, port->drive);
+		if (state) val |= 0x20;
+		else	   val &= 0xdf;
+		NVWriteVgaCrtc(port->dev, 0, port->drive, val | 0x01);
+	} else
+	if (port->type == 4) {
+		nv_mask(port->dev, port->drive, 0x2f, state ? 0x21 : 0x01);
+	} else
+	if (port->type == 5) {
+		if (state) port->state |= 0x01;
+		else	   port->state &= 0xfe;
+		nv_wr32(port->dev, port->drive, 4 | port->state);
+	}
 }
 
 static void
-nv04_i2c_setsda(void *data, int state)
+i2c_drive_sda(void *data, int state)
 {
-	struct nouveau_i2c_chan *i2c = data;
-	struct drm_device *dev = i2c->dev;
-	uint8_t val;
-
-	val = (NVReadVgaCrtc(dev, 0, i2c->wr) & 0xe0) | (state ? 0x10 : 0);
-	NVWriteVgaCrtc(dev, 0, i2c->wr, val | 0x01);
+	struct nouveau_i2c_chan *port = data;
+	if (port->type == 0) {
+		u8 val = NVReadVgaCrtc(port->dev, 0, port->drive);
+		if (state) val |= 0x10;
+		else	   val &= 0xef;
+		NVWriteVgaCrtc(port->dev, 0, port->drive, val | 0x01);
+	} else
+	if (port->type == 4) {
+		nv_mask(port->dev, port->drive, 0x1f, state ? 0x11 : 0x01);
+	} else
+	if (port->type == 5) {
+		if (state) port->state |= 0x02;
+		else	   port->state &= 0xfd;
+		nv_wr32(port->dev, port->drive, 4 | port->state);
+	}
 }
 
 static int
-nv04_i2c_getscl(void *data)
+i2c_sense_scl(void *data)
 {
-	struct nouveau_i2c_chan *i2c = data;
-	struct drm_device *dev = i2c->dev;
-
-	return !!(NVReadVgaCrtc(dev, 0, i2c->rd) & 4);
+	struct nouveau_i2c_chan *port = data;
+	struct drm_nouveau_private *dev_priv = port->dev->dev_private;
+	if (port->type == 0) {
+		return !!(NVReadVgaCrtc(port->dev, 0, port->sense) & 0x04);
+	} else
+	if (port->type == 4) {
+		return !!(nv_rd32(port->dev, port->sense) & 0x00040000);
+	} else
+	if (port->type == 5) {
+		if (dev_priv->card_type < NV_D0)
+			return !!(nv_rd32(port->dev, port->sense) & 0x01);
+		else
+			return !!(nv_rd32(port->dev, port->sense) & 0x10);
+	}
+	return 0;
 }
 
 static int
-nv04_i2c_getsda(void *data)
+i2c_sense_sda(void *data)
 {
-	struct nouveau_i2c_chan *i2c = data;
-	struct drm_device *dev = i2c->dev;
-
-	return !!(NVReadVgaCrtc(dev, 0, i2c->rd) & 8);
+	struct nouveau_i2c_chan *port = data;
+	struct drm_nouveau_private *dev_priv = port->dev->dev_private;
+	if (port->type == 0) {
+		return !!(NVReadVgaCrtc(port->dev, 0, port->sense) & 0x08);
+	} else
+	if (port->type == 4) {
+		return !!(nv_rd32(port->dev, port->sense) & 0x00080000);
+	} else
+	if (port->type == 5) {
+		if (dev_priv->card_type < NV_D0)
+			return !!(nv_rd32(port->dev, port->sense) & 0x02);
+		else
+			return !!(nv_rd32(port->dev, port->sense) & 0x20);
+	}
+	return 0;
 }
 
 static void
-nv4e_i2c_setscl(void *data, int state)
+i2c_delay(struct nouveau_i2c_chan *port, u32 nsec)
 {
-	struct nouveau_i2c_chan *i2c = data;
-	struct drm_device *dev = i2c->dev;
-	uint8_t val;
-
-	val = (nv_rd32(dev, i2c->wr) & 0xd0) | (state ? 0x20 : 0);
-	nv_wr32(dev, i2c->wr, val | 0x01);
+	udelay((nsec + 500) / 1000);
 }
 
-static void
-nv4e_i2c_setsda(void *data, int state)
+static bool
+i2c_raise_scl(struct nouveau_i2c_chan *port)
 {
-	struct nouveau_i2c_chan *i2c = data;
-	struct drm_device *dev = i2c->dev;
-	uint8_t val;
+	u32 timeout = T_TIMEOUT / T_RISEFALL;
+
+	i2c_drive_scl(port, 1);
+	do {
+		i2c_delay(port, T_RISEFALL);
+	} while (!i2c_sense_scl(port) && --timeout);
 
-	val = (nv_rd32(dev, i2c->wr) & 0xe0) | (state ? 0x10 : 0);
-	nv_wr32(dev, i2c->wr, val | 0x01);
+	return timeout != 0;
 }
 
 static int
-nv4e_i2c_getscl(void *data)
+i2c_start(struct nouveau_i2c_chan *port)
 {
-	struct nouveau_i2c_chan *i2c = data;
-	struct drm_device *dev = i2c->dev;
+	int ret = 0;
+
+	port->state  = i2c_sense_scl(port);
+	port->state |= i2c_sense_sda(port) << 1;
+	if (port->state != 3) {
+		i2c_drive_scl(port, 0);
+		i2c_drive_sda(port, 1);
+		if (!i2c_raise_scl(port))
+			ret = -EBUSY;
+	}
 
-	return !!((nv_rd32(dev, i2c->rd) >> 16) & 4);
+	i2c_drive_sda(port, 0);
+	i2c_delay(port, T_HOLD);
+	i2c_drive_scl(port, 0);
+	i2c_delay(port, T_HOLD);
+	return ret;
 }
 
-static int
-nv4e_i2c_getsda(void *data)
+static void
+i2c_stop(struct nouveau_i2c_chan *port)
 {
-	struct nouveau_i2c_chan *i2c = data;
-	struct drm_device *dev = i2c->dev;
-
-	return !!((nv_rd32(dev, i2c->rd) >> 16) & 8);
+	i2c_drive_scl(port, 0);
+	i2c_drive_sda(port, 0);
+	i2c_delay(port, T_RISEFALL);
+
+	i2c_drive_scl(port, 1);
+	i2c_delay(port, T_HOLD);
+	i2c_drive_sda(port, 1);
+	i2c_delay(port, T_HOLD);
 }
 
-static const uint32_t nv50_i2c_port[] = {
-	0x00e138, 0x00e150, 0x00e168, 0x00e180,
-	0x00e254, 0x00e274, 0x00e764, 0x00e780,
-	0x00e79c, 0x00e7b8
-};
-#define NV50_I2C_PORTS ARRAY_SIZE(nv50_i2c_port)
-
 static int
-nv50_i2c_getscl(void *data)
+i2c_bitw(struct nouveau_i2c_chan *port, int sda)
 {
-	struct nouveau_i2c_chan *i2c = data;
-	struct drm_device *dev = i2c->dev;
+	i2c_drive_sda(port, sda);
+	i2c_delay(port, T_RISEFALL);
 
-	return !!(nv_rd32(dev, i2c->rd) & 1);
-}
+	if (!i2c_raise_scl(port))
+		return -ETIMEDOUT;
+	i2c_delay(port, T_HOLD);
 
+	i2c_drive_scl(port, 0);
+	i2c_delay(port, T_HOLD);
+	return 0;
+}
 
 static int
-nv50_i2c_getsda(void *data)
+i2c_bitr(struct nouveau_i2c_chan *port)
 {
-	struct nouveau_i2c_chan *i2c = data;
-	struct drm_device *dev = i2c->dev;
+	int sda;
+
+	i2c_drive_sda(port, 1);
+	i2c_delay(port, T_RISEFALL);
 
-	return !!(nv_rd32(dev, i2c->rd) & 2);
+	if (!i2c_raise_scl(port))
+		return -ETIMEDOUT;
+	i2c_delay(port, T_HOLD);
+
+	sda = i2c_sense_sda(port);
+
+	i2c_drive_scl(port, 0);
+	i2c_delay(port, T_HOLD);
+	return sda;
 }
 
-static void
-nv50_i2c_setscl(void *data, int state)
+static int
+i2c_get_byte(struct nouveau_i2c_chan *port, u8 *byte, bool last)
 {
-	struct nouveau_i2c_chan *i2c = data;
+	int i, bit;
+
+	*byte = 0;
+	for (i = 7; i >= 0; i--) {
+		bit = i2c_bitr(port);
+		if (bit < 0)
+			return bit;
+		*byte |= bit << i;
+	}
 
-	nv_wr32(i2c->dev, i2c->wr, 4 | (i2c->data ? 2 : 0) | (state ? 1 : 0));
+	return i2c_bitw(port, last ? 1 : 0);
 }
 
-static void
-nv50_i2c_setsda(void *data, int state)
+static int
+i2c_put_byte(struct nouveau_i2c_chan *port, u8 byte)
 {
-	struct nouveau_i2c_chan *i2c = data;
+	int i, ret;
+	for (i = 7; i >= 0; i--) {
+		ret = i2c_bitw(port, !!(byte & (1 << i)));
+		if (ret < 0)
+			return ret;
+	}
 
-	nv_mask(i2c->dev, i2c->wr, 0x00000006, 4 | (state ? 2 : 0));
-	i2c->data = state;
+	ret = i2c_bitr(port);
+	if (ret == 1) /* nack */
+		ret = -EIO;
+	return ret;
 }
 
 static int
-nvd0_i2c_getscl(void *data)
+i2c_addr(struct nouveau_i2c_chan *port, struct i2c_msg *msg)
 {
-	struct nouveau_i2c_chan *i2c = data;
-	return !!(nv_rd32(i2c->dev, i2c->rd) & 0x10);
+	u32 addr = msg->addr << 1;
+	if (msg->flags & I2C_M_RD)
+		addr |= 1;
+	return i2c_put_byte(port, addr);
 }
 
 static int
-nvd0_i2c_getsda(void *data)
+i2c_bit_xfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
 {
-	struct nouveau_i2c_chan *i2c = data;
-	return !!(nv_rd32(i2c->dev, i2c->rd) & 0x20);
+	struct nouveau_i2c_chan *port = (struct nouveau_i2c_chan *)adap;
+	struct i2c_msg *msg = msgs;
+	int ret = 0, mcnt = num;
+
+	while (!ret && mcnt--) {
+		u8 remaining = msg->len;
+		u8 *ptr = msg->buf;
+
+		ret = i2c_start(port);
+		if (ret == 0)
+			ret = i2c_addr(port, msg);
+
+		if (msg->flags & I2C_M_RD) {
+			while (!ret && remaining--)
+				ret = i2c_get_byte(port, ptr++, !remaining);
+		} else {
+			while (!ret && remaining--)
+				ret = i2c_put_byte(port, *ptr++);
+		}
+
+		msg++;
+	}
+
+	i2c_stop(port);
+	return (ret < 0) ? ret : num;
 }
 
-int
-nouveau_i2c_init(struct drm_device *dev, struct dcb_i2c_entry *entry, int index)
+static u32
+i2c_bit_func(struct i2c_adapter *adap)
 {
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_i2c_chan *i2c;
-	int ret;
+	return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
+}
+
+const struct i2c_algorithm i2c_bit_algo = {
+	.master_xfer = i2c_bit_xfer,
+	.functionality = i2c_bit_func
+};
+
+static const uint32_t nv50_i2c_port[] = {
+	0x00e138, 0x00e150, 0x00e168, 0x00e180,
+	0x00e254, 0x00e274, 0x00e764, 0x00e780,
+	0x00e79c, 0x00e7b8
+};
 
-	if (entry->chan)
-		return -EEXIST;
+static u8 *
+i2c_table(struct drm_device *dev, u8 *version)
+{
+	u8 *dcb = dcb_table(dev), *i2c = NULL;
+	if (dcb) {
+		if (dcb[0] >= 0x15)
+			i2c = ROMPTR(dev, dcb[2]);
+		if (dcb[0] >= 0x30)
+			i2c = ROMPTR(dev, dcb[4]);
+	}
 
-	if (dev_priv->card_type >= NV_50 &&
-	    dev_priv->card_type <= NV_C0 && entry->read >= NV50_I2C_PORTS) {
-		NV_ERROR(dev, "unknown i2c port %d\n", entry->read);
-		return -EINVAL;
+	/* early revisions had no version number, use dcb version */
+	if (i2c) {
+		*version = dcb[0];
+		if (*version >= 0x30)
+			*version = i2c[0];
 	}
 
-	i2c = kzalloc(sizeof(*i2c), GFP_KERNEL);
-	if (i2c == NULL)
-		return -ENOMEM;
-
-	switch (entry->port_type) {
-	case 0:
-		i2c->bit.setsda = nv04_i2c_setsda;
-		i2c->bit.setscl = nv04_i2c_setscl;
-		i2c->bit.getsda = nv04_i2c_getsda;
-		i2c->bit.getscl = nv04_i2c_getscl;
-		i2c->rd = entry->read;
-		i2c->wr = entry->write;
-		break;
-	case 4:
-		i2c->bit.setsda = nv4e_i2c_setsda;
-		i2c->bit.setscl = nv4e_i2c_setscl;
-		i2c->bit.getsda = nv4e_i2c_getsda;
-		i2c->bit.getscl = nv4e_i2c_getscl;
-		i2c->rd = 0x600800 + entry->read;
-		i2c->wr = 0x600800 + entry->write;
-		break;
-	case 5:
-		i2c->bit.setsda = nv50_i2c_setsda;
-		i2c->bit.setscl = nv50_i2c_setscl;
-		if (dev_priv->card_type < NV_D0) {
-			i2c->bit.getsda = nv50_i2c_getsda;
-			i2c->bit.getscl = nv50_i2c_getscl;
-			i2c->rd = nv50_i2c_port[entry->read];
-			i2c->wr = i2c->rd;
-		} else {
-			i2c->bit.getsda = nvd0_i2c_getsda;
-			i2c->bit.getscl = nvd0_i2c_getscl;
-			i2c->rd = 0x00d014 + (entry->read * 0x20);
-			i2c->wr = i2c->rd;
-		}
-		break;
-	case 6:
-		i2c->rd = entry->read;
-		i2c->wr = entry->write;
-		break;
-	default:
-		NV_ERROR(dev, "DCB I2C port type %d unknown\n",
-			 entry->port_type);
-		kfree(i2c);
-		return -EINVAL;
+	return i2c;
+}
+
+int
+nouveau_i2c_init(struct drm_device *dev)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nvbios *bios = &dev_priv->vbios;
+	struct nouveau_i2c_chan *port;
+	u8 *i2c, *entry, legacy[2][4] = {};
+	u8 version, entries, recordlen;
+	int ret, i;
+
+	INIT_LIST_HEAD(&dev_priv->i2c_ports);
+
+	i2c = i2c_table(dev, &version);
+	if (!i2c) {
+		u8 *bmp = &bios->data[bios->offset];
+		if (bios->type != NVBIOS_BMP)
+			return -ENODEV;
+
+		legacy[0][0] = NV_CIO_CRE_DDC_WR__INDEX;
+		legacy[0][1] = NV_CIO_CRE_DDC_STATUS__INDEX;
+		legacy[1][0] = NV_CIO_CRE_DDC0_WR__INDEX;
+		legacy[1][1] = NV_CIO_CRE_DDC0_STATUS__INDEX;
+
+		/* BMP (from v4.0) has i2c info in the structure, it's in a
+		 * fixed location on earlier VBIOS
+		 */
+		if (bmp[5] < 4)
+			i2c = &bios->data[0x48];
+		else
+			i2c = &bmp[0x36];
+
+		if (i2c[4]) legacy[0][0] = i2c[4];
+		if (i2c[5]) legacy[0][1] = i2c[5];
+		if (i2c[6]) legacy[1][0] = i2c[6];
+		if (i2c[7]) legacy[1][1] = i2c[7];
 	}
 
-	snprintf(i2c->adapter.name, sizeof(i2c->adapter.name),
-		 "nouveau-%s-%d", pci_name(dev->pdev), index);
-	i2c->adapter.owner = THIS_MODULE;
-	i2c->adapter.dev.parent = &dev->pdev->dev;
-	i2c->dev = dev;
-	i2c_set_adapdata(&i2c->adapter, i2c);
-
-	if (entry->port_type < 6) {
-		i2c->adapter.algo_data = &i2c->bit;
-		i2c->bit.udelay = 40;
-		i2c->bit.timeout = usecs_to_jiffies(5000);
-		i2c->bit.data = i2c;
-		ret = i2c_bit_add_bus(&i2c->adapter);
+	if (i2c && version >= 0x30) {
+		entry     = i2c[1] + i2c;
+		entries   = i2c[2];
+		recordlen = i2c[3];
+	} else
+	if (i2c) {
+		entry     = i2c;
+		entries   = 16;
+		recordlen = 4;
 	} else {
-		i2c->adapter.algo = &nouveau_dp_i2c_algo;
-		ret = i2c_add_adapter(&i2c->adapter);
+		entry     = legacy[0];
+		entries   = 2;
+		recordlen = 4;
 	}
 
-	if (ret) {
-		NV_ERROR(dev, "Failed to register i2c %d\n", index);
-		kfree(i2c);
-		return ret;
+	for (i = 0; i < entries; i++, entry += recordlen) {
+		port = kzalloc(sizeof(*port), GFP_KERNEL);
+		if (port == NULL) {
+			nouveau_i2c_fini(dev);
+			return -ENOMEM;
+		}
+
+		port->type = entry[3];
+		if (version < 0x30) {
+			port->type &= 0x07;
+			if (port->type == 0x07)
+				port->type = 0xff;
+		}
+
+		if (port->type == 0xff) {
+			kfree(port);
+			continue;
+		}
+
+		switch (port->type) {
+		case 0: /* NV04:NV50 */
+			port->drive = entry[0];
+			port->sense = entry[1];
+			port->adapter.algo = &i2c_bit_algo;
+			break;
+		case 4: /* NV4E */
+			port->drive = 0x600800 + entry[1];
+			port->sense = port->drive;
+			port->adapter.algo = &i2c_bit_algo;
+			break;
+		case 5: /* NV50- */
+			port->drive = entry[0] & 0x0f;
+			if (dev_priv->card_type < NV_D0) {
+				if (port->drive >= ARRAY_SIZE(nv50_i2c_port))
+					break;
+				port->drive = nv50_i2c_port[port->drive];
+				port->sense = port->drive;
+			} else {
+				port->drive = 0x00d014 + (port->drive * 0x20);
+				port->sense = port->drive;
+			}
+			port->adapter.algo = &i2c_bit_algo;
+			break;
+		case 6: /* NV50- DP AUX */
+			port->drive = entry[0];
+			port->sense = port->drive;
+			port->adapter.algo = &nouveau_dp_i2c_algo;
+			break;
+		default:
+			break;
+		}
+
+		if (!port->adapter.algo) {
+			NV_ERROR(dev, "I2C%d: type %d index %x/%x unknown\n",
+				 i, port->type, port->drive, port->sense);
+			kfree(port);
+			continue;
+		}
+
+		snprintf(port->adapter.name, sizeof(port->adapter.name),
+			 "nouveau-%s-%d", pci_name(dev->pdev), i);
+		port->adapter.owner = THIS_MODULE;
+		port->adapter.dev.parent = &dev->pdev->dev;
+		port->dev = dev;
+		port->index = i;
+		port->dcb = ROM32(entry[0]);
+		i2c_set_adapdata(&port->adapter, i2c);
+
+		ret = i2c_add_adapter(&port->adapter);
+		if (ret) {
+			NV_ERROR(dev, "I2C%d: failed register: %d\n", i, ret);
+			kfree(port);
+			continue;
+		}
+
+		list_add_tail(&port->head, &dev_priv->i2c_ports);
 	}
 
-	entry->chan = i2c;
 	return 0;
 }
 
 void
-nouveau_i2c_fini(struct drm_device *dev, struct dcb_i2c_entry *entry)
+nouveau_i2c_fini(struct drm_device *dev)
 {
-	if (!entry->chan)
-		return;
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_i2c_chan *port, *tmp;
 
-	i2c_del_adapter(&entry->chan->adapter);
-	kfree(entry->chan);
-	entry->chan = NULL;
+	list_for_each_entry_safe(port, tmp, &dev_priv->i2c_ports, head) {
+		i2c_del_adapter(&port->adapter);
+		kfree(port);
+	}
 }
 
 struct nouveau_i2c_chan *
-nouveau_i2c_find(struct drm_device *dev, int index)
+nouveau_i2c_find(struct drm_device *dev, u8 index)
 {
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct dcb_i2c_entry *i2c = &dev_priv->vbios.dcb.i2c[index];
+	struct nouveau_i2c_chan *port;
+
+	if (index == NV_I2C_DEFAULT(0) ||
+	    index == NV_I2C_DEFAULT(1)) {
+		u8 version, *i2c = i2c_table(dev, &version);
+		if (i2c && version >= 0x30) {
+			if (index == NV_I2C_DEFAULT(0))
+				index = (i2c[4] & 0x0f);
+			else
+				index = (i2c[4] & 0xf0) >> 4;
+		} else {
+			index = 2;
+		}
+	}
 
-	if (index >= DCB_MAX_NUM_I2C_ENTRIES)
-		return NULL;
+	list_for_each_entry(port, &dev_priv->i2c_ports, head) {
+		if (port->index == index)
+			break;
+	}
 
-	if (dev_priv->card_type >= NV_50 && (i2c->entry & 0x00000100)) {
-		uint32_t reg = 0xe500, val;
+	if (&port->head == &dev_priv->i2c_ports)
+		return NULL;
 
-		if (i2c->port_type == 6) {
-			reg += i2c->read * 0x50;
+	if (dev_priv->card_type >= NV_50 && (port->dcb & 0x00000100)) {
+		u32 reg = 0x00e500, val;
+		if (port->type == 6) {
+			reg += port->drive * 0x50;
 			val  = 0x2002;
 		} else {
-			reg += ((i2c->entry & 0x1e00) >> 9) * 0x50;
+			reg += ((port->dcb & 0x1e00) >> 9) * 0x50;
 			val  = 0xe001;
 		}
 
@@ -294,9 +497,7 @@ nouveau_i2c_find(struct drm_device *dev, int index)
 		nv_mask(dev, reg + 0x00, 0x0000f003, val);
 	}
 
-	if (!i2c->chan && nouveau_i2c_init(dev, i2c, index))
-		return NULL;
-	return i2c->chan;
+	return port;
 }
 
 bool
@@ -331,9 +532,13 @@ nouveau_i2c_identify(struct drm_device *dev, const char *what,
 	struct nouveau_i2c_chan *i2c = nouveau_i2c_find(dev, index);
 	int i;
 
-	NV_DEBUG(dev, "Probing %ss on I2C bus: %d\n", what, index);
+	if (!i2c) {
+		NV_DEBUG(dev, "No bus when probing %s on %d\n", what, index);
+		return -ENODEV;
+	}
 
-	for (i = 0; i2c && info[i].addr; i++) {
+	NV_DEBUG(dev, "Probing %ss on I2C bus: %d\n", what, i2c->index);
+	for (i = 0; info[i].addr; i++) {
 		if (nouveau_probe_i2c_addr(i2c, info[i].addr) &&
 		    (!match || match(i2c, &info[i]))) {
 			NV_INFO(dev, "Detected %s: %s\n", what, info[i].type);
@@ -342,6 +547,5 @@ nouveau_i2c_identify(struct drm_device *dev, const char *what,
 	}
 
 	NV_DEBUG(dev, "No devices found.\n");
-
 	return -ENODEV;
 }
diff --git a/drivers/gpu/drm/nouveau/nouveau_i2c.h b/drivers/gpu/drm/nouveau/nouveau_i2c.h
index 422b62fd8272..4d2e4e9031be 100644
--- a/drivers/gpu/drm/nouveau/nouveau_i2c.h
+++ b/drivers/gpu/drm/nouveau/nouveau_i2c.h
@@ -27,20 +27,25 @@
 #include <linux/i2c-algo-bit.h>
 #include "drm_dp_helper.h"
 
-struct dcb_i2c_entry;
+#define NV_I2C_PORT(n)    (0x00 + (n))
+#define NV_I2C_PORT_NUM    0x10
+#define NV_I2C_DEFAULT(n) (0x80 + (n))
 
 struct nouveau_i2c_chan {
 	struct i2c_adapter adapter;
 	struct drm_device *dev;
-	struct i2c_algo_bit_data bit;
-	unsigned rd;
-	unsigned wr;
-	unsigned data;
+	struct list_head head;
+	u8  index;
+	u8  type;
+	u32 dcb;
+	u32 drive;
+	u32 sense;
+	u32 state;
 };
 
-int nouveau_i2c_init(struct drm_device *, struct dcb_i2c_entry *, int index);
-void nouveau_i2c_fini(struct drm_device *, struct dcb_i2c_entry *);
-struct nouveau_i2c_chan *nouveau_i2c_find(struct drm_device *, int index);
+int  nouveau_i2c_init(struct drm_device *);
+void nouveau_i2c_fini(struct drm_device *);
+struct nouveau_i2c_chan *nouveau_i2c_find(struct drm_device *, u8 index);
 bool nouveau_probe_i2c_addr(struct nouveau_i2c_chan *i2c, int addr);
 int nouveau_i2c_identify(struct drm_device *dev, const char *what,
 			 struct i2c_board_info *info,
diff --git a/drivers/gpu/drm/nouveau/nouveau_mem.c b/drivers/gpu/drm/nouveau/nouveau_mem.c
index 36bec4807701..c3a5745e9c79 100644
--- a/drivers/gpu/drm/nouveau/nouveau_mem.c
+++ b/drivers/gpu/drm/nouveau/nouveau_mem.c
@@ -407,6 +407,12 @@ nouveau_mem_vram_init(struct drm_device *dev)
 	ret = pci_set_dma_mask(dev->pdev, DMA_BIT_MASK(dma_bits));
 	if (ret)
 		return ret;
+	ret = pci_set_consistent_dma_mask(dev->pdev, DMA_BIT_MASK(dma_bits));
+	if (ret) {
+		/* Reset to default value. */
+		pci_set_consistent_dma_mask(dev->pdev, DMA_BIT_MASK(32));
+	}
+
 
 	ret = nouveau_ttm_global_init(dev_priv);
 	if (ret)
@@ -638,10 +644,10 @@ nouveau_mem_timing_init(struct drm_device *dev)
 			return;
 
 		if (P.version == 1)
-			hdr = (struct nouveau_pm_tbl_header *) ROMPTR(bios, P.data[4]);
+			hdr = (struct nouveau_pm_tbl_header *) ROMPTR(dev, P.data[4]);
 		else
 		if (P.version == 2)
-			hdr = (struct nouveau_pm_tbl_header *) ROMPTR(bios, P.data[8]);
+			hdr = (struct nouveau_pm_tbl_header *) ROMPTR(dev, P.data[8]);
 		else {
 			NV_WARN(dev, "unknown mem for BIT P %d\n", P.version);
 		}
diff --git a/drivers/gpu/drm/nouveau/nouveau_mxm.c b/drivers/gpu/drm/nouveau/nouveau_mxm.c
new file mode 100644
index 000000000000..8bccddf4eff0
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nouveau_mxm.c
@@ -0,0 +1,677 @@
+/*
+ * Copyright 2011 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+
+#include <linux/acpi.h>
+
+#include "drmP.h"
+#include "nouveau_drv.h"
+
+#define MXM_DBG(dev, fmt, args...) NV_DEBUG((dev), "MXM: " fmt, ##args)
+#define MXM_MSG(dev, fmt, args...) NV_INFO((dev), "MXM: " fmt, ##args)
+
+static u8 *
+mxms_data(struct drm_device *dev)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	return dev_priv->mxms;
+
+}
+
+static u16
+mxms_version(struct drm_device *dev)
+{
+	u8 *mxms = mxms_data(dev);
+	u16 version = (mxms[4] << 8) | mxms[5];
+	switch (version ) {
+	case 0x0200:
+	case 0x0201:
+	case 0x0300:
+		return version;
+	default:
+		break;
+	}
+
+	MXM_DBG(dev, "unknown version %d.%d\n", mxms[4], mxms[5]);
+	return 0x0000;
+}
+
+static u16
+mxms_headerlen(struct drm_device *dev)
+{
+	return 8;
+}
+
+static u16
+mxms_structlen(struct drm_device *dev)
+{
+	return *(u16 *)&mxms_data(dev)[6];
+}
+
+static bool
+mxms_checksum(struct drm_device *dev)
+{
+	u16 size = mxms_headerlen(dev) + mxms_structlen(dev);
+	u8 *mxms = mxms_data(dev), sum = 0;
+	while (size--)
+		sum += *mxms++;
+	if (sum) {
+		MXM_DBG(dev, "checksum invalid\n");
+		return false;
+	}
+	return true;
+}
+
+static bool
+mxms_valid(struct drm_device *dev)
+{
+	u8 *mxms = mxms_data(dev);
+	if (*(u32 *)mxms != 0x5f4d584d) {
+		MXM_DBG(dev, "signature invalid\n");
+		return false;
+	}
+
+	if (!mxms_version(dev) || !mxms_checksum(dev))
+		return false;
+
+	return true;
+}
+
+static bool
+mxms_foreach(struct drm_device *dev, u8 types,
+	     bool (*exec)(struct drm_device *, u8 *, void *), void *info)
+{
+	u8 *mxms = mxms_data(dev);
+	u8 *desc = mxms + mxms_headerlen(dev);
+	u8 *fini = desc + mxms_structlen(dev) - 1;
+	while (desc < fini) {
+		u8 type = desc[0] & 0x0f;
+		u8 headerlen = 0;
+		u8 recordlen = 0;
+		u8 entries = 0;
+
+		switch (type) {
+		case 0: /* Output Device Structure */
+			if (mxms_version(dev) >= 0x0300)
+				headerlen = 8;
+			else
+				headerlen = 6;
+			break;
+		case 1: /* System Cooling Capability Structure */
+		case 2: /* Thermal Structure */
+		case 3: /* Input Power Structure */
+			headerlen = 4;
+			break;
+		case 4: /* GPIO Device Structure */
+			headerlen = 4;
+			recordlen = 2;
+			entries   = (ROM32(desc[0]) & 0x01f00000) >> 20;
+			break;
+		case 5: /* Vendor Specific Structure */
+			headerlen = 8;
+			break;
+		case 6: /* Backlight Control Structure */
+			if (mxms_version(dev) >= 0x0300) {
+				headerlen = 4;
+				recordlen = 8;
+				entries   = (desc[1] & 0xf0) >> 4;
+			} else {
+				headerlen = 8;
+			}
+			break;
+		case 7: /* Fan Control Structure */
+			headerlen = 8;
+			recordlen = 4;
+			entries   = desc[1] & 0x07;
+			break;
+		default:
+			MXM_DBG(dev, "unknown descriptor type %d\n", type);
+			return false;
+		}
+
+		if ((drm_debug & DRM_UT_DRIVER) && (exec == NULL)) {
+			static const char * mxms_desc_name[] = {
+				"ODS", "SCCS", "TS", "IPS",
+				"GSD", "VSS", "BCS", "FCS",
+			};
+			u8 *dump = desc;
+			int i, j;
+
+			MXM_DBG(dev, "%4s: ", mxms_desc_name[type]);
+			for (j = headerlen - 1; j >= 0; j--)
+				printk("%02x", dump[j]);
+			printk("\n");
+			dump += headerlen;
+
+			for (i = 0; i < entries; i++, dump += recordlen) {
+				MXM_DBG(dev, "      ");
+				for (j = recordlen - 1; j >= 0; j--)
+					printk("%02x", dump[j]);
+				printk("\n");
+			}
+		}
+
+		if (types & (1 << type)) {
+			if (!exec(dev, desc, info))
+				return false;
+		}
+
+		desc += headerlen + (entries * recordlen);
+	}
+
+	return true;
+}
+
+static u8 *
+mxm_table(struct drm_device *dev, u8 *size)
+{
+	struct bit_entry x;
+
+	if (bit_table(dev, 'x', &x)) {
+		MXM_DBG(dev, "BIT 'x' table not present\n");
+		return NULL;
+	}
+
+	if (x.version != 1 || x.length < 3) {
+		MXM_MSG(dev, "BIT x table %d/%d unknown\n",
+			x.version, x.length);
+		return NULL;
+	}
+
+	*size = x.length;
+	return x.data;
+}
+
+/* These map MXM v2.x digital connection values to the appropriate SOR/link,
+ * hopefully they're correct for all boards within the same chipset...
+ *
+ * MXM v3.x VBIOS are nicer and provide pointers to these tables.
+ */
+static u8 nv84_sor_map[16] = {
+	0x00, 0x12, 0x22, 0x11, 0x32, 0x31, 0x11, 0x31,
+	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
+static u8 nv92_sor_map[16] = {
+	0x00, 0x12, 0x22, 0x11, 0x32, 0x31, 0x11, 0x31,
+	0x11, 0x31, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
+static u8 nv94_sor_map[16] = {
+	0x00, 0x14, 0x24, 0x11, 0x34, 0x31, 0x11, 0x31,
+	0x11, 0x31, 0x12, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
+static u8 nv96_sor_map[16] = {
+	0x00, 0x14, 0x24, 0x00, 0x34, 0x00, 0x11, 0x31,
+	0x11, 0x31, 0x12, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
+static u8 nv98_sor_map[16] = {
+	0x00, 0x14, 0x12, 0x11, 0x00, 0x31, 0x11, 0x31,
+	0x11, 0x31, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
+static u8
+mxm_sor_map(struct drm_device *dev, u8 conn)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	u8 len, *mxm = mxm_table(dev, &len);
+	if (mxm && len >= 6) {
+		u8 *map = ROMPTR(dev, mxm[4]);
+		if (map) {
+			if (map[0] == 0x10) {
+				if (conn < map[3])
+					return map[map[1] + conn];
+				return 0x00;
+			}
+
+			MXM_MSG(dev, "unknown sor map 0x%02x\n", map[0]);
+		}
+	}
+
+	if (dev_priv->chipset == 0x84 || dev_priv->chipset == 0x86)
+		return nv84_sor_map[conn];
+	if (dev_priv->chipset == 0x92)
+		return nv92_sor_map[conn];
+	if (dev_priv->chipset == 0x94)
+		return nv94_sor_map[conn];
+	if (dev_priv->chipset == 0x96)
+		return nv96_sor_map[conn];
+	if (dev_priv->chipset == 0x98)
+		return nv98_sor_map[conn];
+
+	MXM_MSG(dev, "missing sor map\n");
+	return 0x00;
+}
+
+static u8
+mxm_ddc_map(struct drm_device *dev, u8 port)
+{
+	u8 len, *mxm = mxm_table(dev, &len);
+	if (mxm && len >= 8) {
+		u8 *map = ROMPTR(dev, mxm[6]);
+		if (map) {
+			if (map[0] == 0x10) {
+				if (port < map[3])
+					return map[map[1] + port];
+				return 0x00;
+			}
+
+			MXM_MSG(dev, "unknown ddc map 0x%02x\n", map[0]);
+		}
+	}
+
+	/* v2.x: directly write port as dcb i2cidx */
+	return (port << 4) | port;
+}
+
+struct mxms_odev {
+	u8 outp_type;
+	u8 conn_type;
+	u8 ddc_port;
+	u8 dig_conn;
+};
+
+static void
+mxms_output_device(struct drm_device *dev, u8 *pdata, struct mxms_odev *desc)
+{
+	u64 data = ROM32(pdata[0]);
+	if (mxms_version(dev) >= 0x0300)
+		data |= (u64)ROM16(pdata[4]) << 32;
+
+	desc->outp_type = (data & 0x00000000000000f0ULL) >> 4;
+	desc->ddc_port  = (data & 0x0000000000000f00ULL) >> 8;
+	desc->conn_type = (data & 0x000000000001f000ULL) >> 12;
+	desc->dig_conn  = (data & 0x0000000000780000ULL) >> 19;
+}
+
+struct context {
+	u32 *outp;
+	struct mxms_odev desc;
+};
+
+static bool
+mxm_match_tmds_partner(struct drm_device *dev, u8 *data, void *info)
+{
+	struct context *ctx = info;
+	struct mxms_odev desc;
+
+	mxms_output_device(dev, data, &desc);
+	if (desc.outp_type == 2 &&
+	    desc.dig_conn == ctx->desc.dig_conn)
+		return false;
+	return true;
+}
+
+static bool
+mxm_match_dcb(struct drm_device *dev, u8 *data, void *info)
+{
+	struct context *ctx = info;
+	u64 desc = *(u64 *)data;
+
+	mxms_output_device(dev, data, &ctx->desc);
+
+	/* match dcb encoder type to mxm-ods device type */
+	if ((ctx->outp[0] & 0x0000000f) != ctx->desc.outp_type)
+		return true;
+
+	/* digital output, have some extra stuff to match here, there's a
+	 * table in the vbios that provides a mapping from the mxm digital
+	 * connection enum values to SOR/link
+	 */
+	if ((desc & 0x00000000000000f0) >= 0x20) {
+		/* check against sor index */
+		u8 link = mxm_sor_map(dev, ctx->desc.dig_conn);
+		if ((ctx->outp[0] & 0x0f000000) != (link & 0x0f) << 24)
+			return true;
+
+		/* check dcb entry has a compatible link field */
+		link = (link & 0x30) >> 4;
+		if ((link & ((ctx->outp[1] & 0x00000030) >> 4)) != link)
+			return true;
+	}
+
+	/* mark this descriptor accounted for by setting invalid device type,
+	 * except of course some manufactures don't follow specs properly and
+	 * we need to avoid killing off the TMDS function on DP connectors
+	 * if MXM-SIS is missing an entry for it.
+	 */
+	data[0] &= ~0xf0;
+	if (ctx->desc.outp_type == 6 && ctx->desc.conn_type == 6 &&
+	    mxms_foreach(dev, 0x01, mxm_match_tmds_partner, ctx)) {
+		data[0] |= 0x20; /* modify descriptor to match TMDS now */
+	} else {
+		data[0] |= 0xf0;
+	}
+
+	return false;
+}
+
+static int
+mxm_dcb_sanitise_entry(struct drm_device *dev, void *data, int idx, u8 *dcbe)
+{
+	struct context ctx = { .outp = (u32 *)dcbe };
+	u8 type, i2cidx, link;
+	u8 *conn;
+
+	/* look for an output device structure that matches this dcb entry.
+	 * if one isn't found, disable it.
+	 */
+	if (mxms_foreach(dev, 0x01, mxm_match_dcb, &ctx)) {
+		MXM_DBG(dev, "disable %d: 0x%08x 0x%08x\n",
+			idx, ctx.outp[0], ctx.outp[1]);
+		ctx.outp[0] |= 0x0000000f;
+		return 0;
+	}
+
+	/* modify the output's ddc/aux port, there's a pointer to a table
+	 * with the mapping from mxm ddc/aux port to dcb i2c_index in the
+	 * vbios mxm table
+	 */
+	i2cidx = mxm_ddc_map(dev, ctx.desc.ddc_port);
+	if ((ctx.outp[0] & 0x0000000f) != OUTPUT_DP)
+		i2cidx = (i2cidx & 0x0f) << 4;
+	else
+		i2cidx = (i2cidx & 0xf0);
+
+	if (i2cidx != 0xf0) {
+		ctx.outp[0] &= ~0x000000f0;
+		ctx.outp[0] |= i2cidx;
+	}
+
+	/* override dcb sorconf.link, based on what mxm data says */
+	switch (ctx.desc.outp_type) {
+	case 0x00: /* Analog CRT */
+	case 0x01: /* Analog TV/HDTV */
+		break;
+	default:
+		link = mxm_sor_map(dev, ctx.desc.dig_conn) & 0x30;
+		ctx.outp[1] &= ~0x00000030;
+		ctx.outp[1] |= link;
+		break;
+	}
+
+	/* we may need to fixup various other vbios tables based on what
+	 * the descriptor says the connector type should be.
+	 *
+	 * in a lot of cases, the vbios tables will claim DVI-I is possible,
+	 * and the mxm data says the connector is really HDMI.  another
+	 * common example is DP->eDP.
+	 */
+	conn = dcb_conn(dev, (ctx.outp[0] & 0x0000f000) >> 12);
+	type = conn[0];
+	switch (ctx.desc.conn_type) {
+	case 0x01: /* LVDS */
+		ctx.outp[1] |= 0x00000004; /* use_power_scripts */
+		/* XXX: modify default link width in LVDS table */
+		break;
+	case 0x02: /* HDMI */
+		type = DCB_CONNECTOR_HDMI_1;
+		break;
+	case 0x03: /* DVI-D */
+		type = DCB_CONNECTOR_DVI_D;
+		break;
+	case 0x0e: /* eDP, falls through to DPint */
+		ctx.outp[1] |= 0x00010000;
+	case 0x07: /* DP internal, wtf is this?? HP8670w */
+		ctx.outp[1] |= 0x00000004; /* use_power_scripts? */
+		type = DCB_CONNECTOR_eDP;
+		break;
+	default:
+		break;
+	}
+
+	if (mxms_version(dev) >= 0x0300)
+		conn[0] = type;
+
+	return 0;
+}
+
+static bool
+mxm_show_unmatched(struct drm_device *dev, u8 *data, void *info)
+{
+	u64 desc = *(u64 *)data;
+	if ((desc & 0xf0) != 0xf0)
+		MXM_MSG(dev, "unmatched output device 0x%016llx\n", desc);
+	return true;
+}
+
+static void
+mxm_dcb_sanitise(struct drm_device *dev)
+{
+	u8 *dcb = dcb_table(dev);
+	if (!dcb || dcb[0] != 0x40) {
+		MXM_DBG(dev, "unsupported DCB version\n");
+		return;
+	}
+
+	dcb_outp_foreach(dev, NULL, mxm_dcb_sanitise_entry);
+	mxms_foreach(dev, 0x01, mxm_show_unmatched, NULL);
+}
+
+static bool
+mxm_shadow_rom_fetch(struct nouveau_i2c_chan *i2c, u8 addr,
+		     u8 offset, u8 size, u8 *data)
+{
+	struct i2c_msg msgs[] = {
+		{ .addr = addr, .flags = 0, .len = 1, .buf = &offset },
+		{ .addr = addr, .flags = I2C_M_RD, .len = size, .buf = data, },
+	};
+
+	return i2c_transfer(&i2c->adapter, msgs, 2) == 2;
+}
+
+static bool
+mxm_shadow_rom(struct drm_device *dev, u8 version)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_i2c_chan *i2c = NULL;
+	u8 i2cidx, mxms[6], addr, size;
+
+	i2cidx = mxm_ddc_map(dev, 1 /* LVDS_DDC */) & 0x0f;
+	if (i2cidx < 0x0f)
+		i2c = nouveau_i2c_find(dev, i2cidx);
+	if (!i2c)
+		return false;
+
+	addr = 0x54;
+	if (!mxm_shadow_rom_fetch(i2c, addr, 0, 6, mxms)) {
+		addr = 0x56;
+		if (!mxm_shadow_rom_fetch(i2c, addr, 0, 6, mxms))
+			return false;
+	}
+
+	dev_priv->mxms = mxms;
+	size = mxms_headerlen(dev) + mxms_structlen(dev);
+	dev_priv->mxms = kmalloc(size, GFP_KERNEL);
+
+	if (dev_priv->mxms &&
+	    mxm_shadow_rom_fetch(i2c, addr, 0, size, dev_priv->mxms))
+		return true;
+
+	kfree(dev_priv->mxms);
+	dev_priv->mxms = NULL;
+	return false;
+}
+
+#if defined(CONFIG_ACPI)
+static bool
+mxm_shadow_dsm(struct drm_device *dev, u8 version)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	static char muid[] = {
+		0x00, 0xA4, 0x04, 0x40, 0x7D, 0x91, 0xF2, 0x4C,
+		0xB8, 0x9C, 0x79, 0xB6, 0x2F, 0xD5, 0x56, 0x65
+	};
+	u32 mxms_args[] = { 0x00000000 };
+	union acpi_object args[4] = {
+		/* _DSM MUID */
+		{ .buffer.type = 3,
+		  .buffer.length = sizeof(muid),
+		  .buffer.pointer = muid,
+		},
+		/* spec says this can be zero to mean "highest revision", but
+		 * of course there's at least one bios out there which fails
+		 * unless you pass in exactly the version it supports..
+		 */
+		{ .integer.type = ACPI_TYPE_INTEGER,
+		  .integer.value = (version & 0xf0) << 4 | (version & 0x0f),
+		},
+		/* MXMS function */
+		{ .integer.type = ACPI_TYPE_INTEGER,
+		  .integer.value = 0x00000010,
+		},
+		/* Pointer to MXMS arguments */
+		{ .buffer.type = ACPI_TYPE_BUFFER,
+		  .buffer.length = sizeof(mxms_args),
+		  .buffer.pointer = (char *)mxms_args,
+		},
+	};
+	struct acpi_object_list list = { ARRAY_SIZE(args), args };
+	struct acpi_buffer retn = { ACPI_ALLOCATE_BUFFER, NULL };
+	union acpi_object *obj;
+	acpi_handle handle;
+	int ret;
+
+	handle = DEVICE_ACPI_HANDLE(&dev->pdev->dev);
+	if (!handle)
+		return false;
+
+	ret = acpi_evaluate_object(handle, "_DSM", &list, &retn);
+	if (ret) {
+		MXM_DBG(dev, "DSM MXMS failed: %d\n", ret);
+		return false;
+	}
+
+	obj = retn.pointer;
+	if (obj->type == ACPI_TYPE_BUFFER) {
+		dev_priv->mxms = kmemdup(obj->buffer.pointer,
+					 obj->buffer.length, GFP_KERNEL);
+	} else
+	if (obj->type == ACPI_TYPE_INTEGER) {
+		MXM_DBG(dev, "DSM MXMS returned 0x%llx\n", obj->integer.value);
+	}
+
+	kfree(obj);
+	return dev_priv->mxms != NULL;
+}
+#endif
+
+#if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
+
+#define WMI_WMMX_GUID "F6CB5C3C-9CAE-4EBD-B577-931EA32A2CC0"
+
+static bool
+mxm_shadow_wmi(struct drm_device *dev, u8 version)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	u32 mxms_args[] = { 0x534D584D /* MXMS */, version, 0 };
+	struct acpi_buffer args = { sizeof(mxms_args), mxms_args };
+	struct acpi_buffer retn = { ACPI_ALLOCATE_BUFFER, NULL };
+	union acpi_object *obj;
+	acpi_status status;
+
+	if (!wmi_has_guid(WMI_WMMX_GUID))
+		return false;
+
+	status = wmi_evaluate_method(WMI_WMMX_GUID, 0, 0, &args, &retn);
+	if (ACPI_FAILURE(status)) {
+		MXM_DBG(dev, "WMMX MXMS returned %d\n", status);
+		return false;
+	}
+
+	obj = retn.pointer;
+	if (obj->type == ACPI_TYPE_BUFFER) {
+		dev_priv->mxms = kmemdup(obj->buffer.pointer,
+					 obj->buffer.length, GFP_KERNEL);
+	}
+
+	kfree(obj);
+	return dev_priv->mxms != NULL;
+}
+#endif
+
+struct mxm_shadow_h {
+	const char *name;
+	bool (*exec)(struct drm_device *, u8 version);
+} _mxm_shadow[] = {
+	{ "ROM", mxm_shadow_rom },
+#if defined(CONFIG_ACPI)
+	{ "DSM", mxm_shadow_dsm },
+#endif
+#if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
+	{ "WMI", mxm_shadow_wmi },
+#endif
+	{}
+};
+
+static int
+mxm_shadow(struct drm_device *dev, u8 version)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct mxm_shadow_h *shadow = _mxm_shadow;
+	do {
+		MXM_DBG(dev, "checking %s\n", shadow->name);
+		if (shadow->exec(dev, version)) {
+			if (mxms_valid(dev))
+				return 0;
+			kfree(dev_priv->mxms);
+			dev_priv->mxms = NULL;
+		}
+	} while ((++shadow)->name);
+	return -ENOENT;
+}
+
+int
+nouveau_mxm_init(struct drm_device *dev)
+{
+	u8 mxm_size, *mxm = mxm_table(dev, &mxm_size);
+	if (!mxm || !mxm[0]) {
+		MXM_MSG(dev, "no VBIOS data, nothing to do\n");
+		return 0;
+	}
+
+	MXM_MSG(dev, "BIOS version %d.%d\n", mxm[0] >> 4, mxm[0] & 0x0f);
+
+	if (mxm_shadow(dev, mxm[0])) {
+		MXM_MSG(dev, "failed to locate valid SIS\n");
+		return -EINVAL;
+	}
+
+	MXM_MSG(dev, "MXMS Version %d.%d\n",
+		mxms_version(dev) >> 8, mxms_version(dev) & 0xff);
+	mxms_foreach(dev, 0, NULL, NULL);
+
+	if (nouveau_mxmdcb)
+		mxm_dcb_sanitise(dev);
+	return 0;
+}
+
+void
+nouveau_mxm_fini(struct drm_device *dev)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	kfree(dev_priv->mxms);
+	dev_priv->mxms = NULL;
+}
diff --git a/drivers/gpu/drm/nouveau/nouveau_notifier.c b/drivers/gpu/drm/nouveau/nouveau_notifier.c
index 6abdbe6530a7..2ef883c4bbc1 100644
--- a/drivers/gpu/drm/nouveau/nouveau_notifier.c
+++ b/drivers/gpu/drm/nouveau/nouveau_notifier.c
@@ -115,7 +115,7 @@ nouveau_notifier_alloc(struct nouveau_channel *chan, uint32_t handle,
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
 	struct nouveau_gpuobj *nobj = NULL;
 	struct drm_mm_node *mem;
-	uint32_t offset;
+	uint64_t offset;
 	int target, ret;
 
 	mem = drm_mm_search_free_in_range(&chan->notifier_heap, size, 0,
diff --git a/drivers/gpu/drm/nouveau/nouveau_object.c b/drivers/gpu/drm/nouveau/nouveau_object.c
index 960c0ae0c0c3..cc419fae794b 100644
--- a/drivers/gpu/drm/nouveau/nouveau_object.c
+++ b/drivers/gpu/drm/nouveau/nouveau_object.c
@@ -723,14 +723,14 @@ nvc0_gpuobj_channel_init(struct nouveau_channel *chan, struct nouveau_vm *vm)
 	nv_wo32(chan->ramin, 0x020c, 0x000000ff);
 
 	/* map display semaphore buffers into channel's vm */
-	if (dev_priv->card_type >= NV_D0)
-		return 0;
-
-	for (i = 0; i < 2; i++) {
-		struct nv50_display_crtc *dispc = &nv50_display(dev)->crtc[i];
-
-		ret = nouveau_bo_vma_add(dispc->sem.bo, chan->vm,
-					 &chan->dispc_vma[i]);
+	for (i = 0; i < dev->mode_config.num_crtc; i++) {
+		struct nouveau_bo *bo;
+		if (dev_priv->card_type >= NV_D0)
+			bo = nvd0_display_crtc_sema(dev, i);
+		else
+			bo = nv50_display(dev)->crtc[i].sem.bo;
+
+		ret = nouveau_bo_vma_add(bo, chan->vm, &chan->dispc_vma[i]);
 		if (ret)
 			return ret;
 	}
@@ -879,9 +879,14 @@ nouveau_gpuobj_channel_takedown(struct nouveau_channel *chan)
 
 	NV_DEBUG(dev, "ch%d\n", chan->id);
 
-	if (dev_priv->card_type >= NV_50 && dev_priv->card_type <= NV_C0) {
+	if (dev_priv->card_type >= NV_D0) {
+		for (i = 0; i < dev->mode_config.num_crtc; i++) {
+			struct nouveau_bo *bo = nvd0_display_crtc_sema(dev, i);
+			nouveau_bo_vma_del(bo, &chan->dispc_vma[i]);
+		}
+	} else
+	if (dev_priv->card_type >= NV_50) {
 		struct nv50_display *disp = nv50_display(dev);
-
 		for (i = 0; i < dev->mode_config.num_crtc; i++) {
 			struct nv50_display_crtc *dispc = &disp->crtc[i];
 			nouveau_bo_vma_del(dispc->sem.bo, &chan->dispc_vma[i]);
diff --git a/drivers/gpu/drm/nouveau/nouveau_perf.c b/drivers/gpu/drm/nouveau/nouveau_perf.c
index 33d03fbf00df..58f497343cec 100644
--- a/drivers/gpu/drm/nouveau/nouveau_perf.c
+++ b/drivers/gpu/drm/nouveau/nouveau_perf.c
@@ -41,7 +41,7 @@ legacy_perf_init(struct drm_device *dev)
 		return;
 	}
 
-	perf = ROMPTR(bios, bmp[0x73]);
+	perf = ROMPTR(dev, bmp[0x73]);
 	if (!perf) {
 		NV_DEBUG(dev, "No memclock table pointer found.\n");
 		return;
@@ -87,7 +87,7 @@ nouveau_perf_timing(struct drm_device *dev, struct bit_entry *P,
 	 * ramcfg to select the correct subentry
 	 */
 	if (P->version == 2) {
-		u8 *tmap = ROMPTR(bios, P->data[4]);
+		u8 *tmap = ROMPTR(dev, P->data[4]);
 		if (!tmap) {
 			NV_DEBUG(dev, "no timing map pointer\n");
 			return NULL;
@@ -140,7 +140,6 @@ nouveau_perf_voltage(struct drm_device *dev, struct bit_entry *P,
 		     struct nouveau_pm_level *perflvl)
 {
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nvbios *bios = &dev_priv->vbios;
 	u8 *vmap;
 	int id;
 
@@ -165,7 +164,7 @@ nouveau_perf_voltage(struct drm_device *dev, struct bit_entry *P,
 		return;
 	}
 
-	vmap = ROMPTR(bios, P->data[32]);
+	vmap = ROMPTR(dev, P->data[32]);
 	if (!vmap) {
 		NV_DEBUG(dev, "volt map table pointer invalid\n");
 		return;
@@ -200,12 +199,14 @@ nouveau_perf_init(struct drm_device *dev)
 			return;
 		}
 
-		perf = ROMPTR(bios, P.data[0]);
+		perf = ROMPTR(dev, P.data[0]);
 		version   = perf[0];
 		headerlen = perf[1];
 		if (version < 0x40) {
 			recordlen = perf[3] + (perf[4] * perf[5]);
 			entries   = perf[2];
+
+			pm->pwm_divisor = ROM16(perf[6]);
 		} else {
 			recordlen = perf[2] + (perf[3] * perf[4]);
 			entries   = perf[5];
@@ -216,7 +217,7 @@ nouveau_perf_init(struct drm_device *dev)
 			return;
 		}
 
-		perf = ROMPTR(bios, bios->data[bios->offset + 0x94]);
+		perf = ROMPTR(dev, bios->data[bios->offset + 0x94]);
 		if (!perf) {
 			NV_DEBUG(dev, "perf table pointer invalid\n");
 			return;
@@ -283,7 +284,6 @@ nouveau_perf_init(struct drm_device *dev)
 				perflvl->memory = ROM16(entry[11]) * 1000;
 			else
 				perflvl->memory = ROM16(entry[11]) * 2000;
-
 			break;
 		case 0x25:
 			perflvl->fanspeed = entry[4];
@@ -300,8 +300,8 @@ nouveau_perf_init(struct drm_device *dev)
 			perflvl->core = ROM16(entry[8]) * 1000;
 			perflvl->shader = ROM16(entry[10]) * 1000;
 			perflvl->memory = ROM16(entry[12]) * 1000;
-			/*XXX: confirm on 0x35 */
-			perflvl->unk05 = ROM16(entry[16]) * 1000;
+			perflvl->vdec = ROM16(entry[16]) * 1000;
+			perflvl->dom6 = ROM16(entry[20]) * 1000;
 			break;
 		case 0x40:
 #define subent(n) (ROM16(entry[perf[2] + ((n) * perf[3])]) & 0xfff) * 1000
diff --git a/drivers/gpu/drm/nouveau/nouveau_pm.c b/drivers/gpu/drm/nouveau/nouveau_pm.c
index a539fd257921..9064d7f19794 100644
--- a/drivers/gpu/drm/nouveau/nouveau_pm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_pm.c
@@ -26,6 +26,7 @@
 
 #include "nouveau_drv.h"
 #include "nouveau_pm.h"
+#include "nouveau_gpio.h"
 
 #ifdef CONFIG_ACPI
 #include <linux/acpi.h>
@@ -35,22 +36,95 @@
 #include <linux/hwmon-sysfs.h>
 
 static int
-nouveau_pm_clock_set(struct drm_device *dev, struct nouveau_pm_level *perflvl,
-		     u8 id, u32 khz)
+nouveau_pwmfan_get(struct drm_device *dev)
 {
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
 	struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
-	void *pre_state;
+	struct gpio_func gpio;
+	u32 divs, duty;
+	int ret;
 
-	if (khz == 0)
-		return 0;
+	if (!pm->pwm_get)
+		return -ENODEV;
+
+	ret = nouveau_gpio_find(dev, 0, DCB_GPIO_PWM_FAN, 0xff, &gpio);
+	if (ret == 0) {
+		ret = pm->pwm_get(dev, gpio.line, &divs, &duty);
+		if (ret == 0) {
+			divs = max(divs, duty);
+			if (dev_priv->card_type <= NV_40 || (gpio.log[0] & 1))
+				duty = divs - duty;
+			return (duty * 100) / divs;
+		}
+
+		return nouveau_gpio_func_get(dev, gpio.func) * 100;
+	}
+
+	return -ENODEV;
+}
+
+static int
+nouveau_pwmfan_set(struct drm_device *dev, int percent)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
+	struct gpio_func gpio;
+	u32 divs, duty;
+	int ret;
+
+	if (!pm->pwm_set)
+		return -ENODEV;
+
+	ret = nouveau_gpio_find(dev, 0, DCB_GPIO_PWM_FAN, 0xff, &gpio);
+	if (ret == 0) {
+		divs = pm->pwm_divisor;
+		if (pm->fan.pwm_freq) {
+			/*XXX: PNVIO clock more than likely... */
+			divs = 135000 / pm->fan.pwm_freq;
+			if (dev_priv->chipset < 0xa3)
+				divs /= 4;
+		}
+
+		duty = ((divs * percent) + 99) / 100;
+		if (dev_priv->card_type <= NV_40 || (gpio.log[0] & 1))
+			duty = divs - duty;
 
-	pre_state = pm->clock_pre(dev, perflvl, id, khz);
-	if (IS_ERR(pre_state))
-		return PTR_ERR(pre_state);
+		return pm->pwm_set(dev, gpio.line, divs, duty);
+	}
+
+	return -ENODEV;
+}
+
+static int
+nouveau_pm_perflvl_aux(struct drm_device *dev, struct nouveau_pm_level *perflvl,
+		       struct nouveau_pm_level *a, struct nouveau_pm_level *b)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
+	int ret;
+
+	/*XXX: not on all boards, we should control based on temperature
+	 *     on recent boards..  or maybe on some other factor we don't
+	 *     know about?
+	 */
+	if (a->fanspeed && b->fanspeed && b->fanspeed > a->fanspeed) {
+		ret = nouveau_pwmfan_set(dev, perflvl->fanspeed);
+		if (ret && ret != -ENODEV) {
+			NV_ERROR(dev, "fanspeed set failed: %d\n", ret);
+			return ret;
+		}
+	}
+
+	if (pm->voltage.supported && pm->voltage_set) {
+		if (perflvl->volt_min && b->volt_min > a->volt_min) {
+			ret = pm->voltage_set(dev, perflvl->volt_min);
+			if (ret) {
+				NV_ERROR(dev, "voltage set failed: %d\n", ret);
+				return ret;
+			}
+		}
+	}
 
-	if (pre_state)
-		pm->clock_set(dev, pre_state);
 	return 0;
 }
 
@@ -59,31 +133,24 @@ nouveau_pm_perflvl_set(struct drm_device *dev, struct nouveau_pm_level *perflvl)
 {
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
 	struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
+	void *state;
 	int ret;
 
 	if (perflvl == pm->cur)
 		return 0;
 
-	if (pm->voltage.supported && pm->voltage_set && perflvl->volt_min) {
-		ret = pm->voltage_set(dev, perflvl->volt_min);
-		if (ret) {
-			NV_ERROR(dev, "voltage_set %d failed: %d\n",
-				 perflvl->volt_min, ret);
-		}
-	}
+	ret = nouveau_pm_perflvl_aux(dev, perflvl, pm->cur, perflvl);
+	if (ret)
+		return ret;
 
-	if (pm->clocks_pre) {
-		void *state = pm->clocks_pre(dev, perflvl);
-		if (IS_ERR(state))
-			return PTR_ERR(state);
-		pm->clocks_set(dev, state);
-	} else
-	if (pm->clock_set) {
-		nouveau_pm_clock_set(dev, perflvl, PLL_CORE, perflvl->core);
-		nouveau_pm_clock_set(dev, perflvl, PLL_SHADER, perflvl->shader);
-		nouveau_pm_clock_set(dev, perflvl, PLL_MEMORY, perflvl->memory);
-		nouveau_pm_clock_set(dev, perflvl, PLL_UNK05, perflvl->unk05);
-	}
+	state = pm->clocks_pre(dev, perflvl);
+	if (IS_ERR(state))
+		return PTR_ERR(state);
+	pm->clocks_set(dev, state);
+
+	ret = nouveau_pm_perflvl_aux(dev, perflvl, perflvl, pm->cur);
+	if (ret)
+		return ret;
 
 	pm->cur = perflvl;
 	return 0;
@@ -130,28 +197,9 @@ nouveau_pm_perflvl_get(struct drm_device *dev, struct nouveau_pm_level *perflvl)
 
 	memset(perflvl, 0, sizeof(*perflvl));
 
-	if (pm->clocks_get) {
-		ret = pm->clocks_get(dev, perflvl);
-		if (ret)
-			return ret;
-	} else
-	if (pm->clock_get) {
-		ret = pm->clock_get(dev, PLL_CORE);
-		if (ret > 0)
-			perflvl->core = ret;
-
-		ret = pm->clock_get(dev, PLL_MEMORY);
-		if (ret > 0)
-			perflvl->memory = ret;
-
-		ret = pm->clock_get(dev, PLL_SHADER);
-		if (ret > 0)
-			perflvl->shader = ret;
-
-		ret = pm->clock_get(dev, PLL_UNK05);
-		if (ret > 0)
-			perflvl->unk05 = ret;
-	}
+	ret = pm->clocks_get(dev, perflvl);
+	if (ret)
+		return ret;
 
 	if (pm->voltage.supported && pm->voltage_get) {
 		ret = pm->voltage_get(dev);
@@ -161,6 +209,10 @@ nouveau_pm_perflvl_get(struct drm_device *dev, struct nouveau_pm_level *perflvl)
 		}
 	}
 
+	ret = nouveau_pwmfan_get(dev);
+	if (ret > 0)
+		perflvl->fanspeed = ret;
+
 	return 0;
 }
 
@@ -412,6 +464,172 @@ static SENSOR_DEVICE_ATTR(update_rate, S_IRUGO,
 						nouveau_hwmon_show_update_rate,
 						NULL, 0);
 
+static ssize_t
+nouveau_hwmon_show_fan0_input(struct device *d, struct device_attribute *attr,
+			      char *buf)
+{
+	struct drm_device *dev = dev_get_drvdata(d);
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_timer_engine *ptimer = &dev_priv->engine.timer;
+	struct gpio_func gpio;
+	u32 cycles, cur, prev;
+	u64 start;
+	int ret;
+
+	ret = nouveau_gpio_find(dev, 0, DCB_GPIO_FAN_SENSE, 0xff, &gpio);
+	if (ret)
+		return ret;
+
+	/* Monitor the GPIO input 0x3b for 250ms.
+	 * When the fan spins, it changes the value of GPIO FAN_SENSE.
+	 * We get 4 changes (0 -> 1 -> 0 -> 1 -> [...]) per complete rotation.
+	 */
+	start = ptimer->read(dev);
+	prev = nouveau_gpio_sense(dev, 0, gpio.line);
+	cycles = 0;
+	do {
+		cur = nouveau_gpio_sense(dev, 0, gpio.line);
+		if (prev != cur) {
+			cycles++;
+			prev = cur;
+		}
+
+		usleep_range(500, 1000); /* supports 0 < rpm < 7500 */
+	} while (ptimer->read(dev) - start < 250000000);
+
+	/* interpolate to get rpm */
+	return sprintf(buf, "%i\n", cycles / 4 * 4 * 60);
+}
+static SENSOR_DEVICE_ATTR(fan0_input, S_IRUGO, nouveau_hwmon_show_fan0_input,
+			  NULL, 0);
+
+static ssize_t
+nouveau_hwmon_get_pwm0(struct device *d, struct device_attribute *a, char *buf)
+{
+	struct drm_device *dev = dev_get_drvdata(d);
+	int ret;
+
+	ret = nouveau_pwmfan_get(dev);
+	if (ret < 0)
+		return ret;
+
+	return sprintf(buf, "%i\n", ret);
+}
+
+static ssize_t
+nouveau_hwmon_set_pwm0(struct device *d, struct device_attribute *a,
+		       const char *buf, size_t count)
+{
+	struct drm_device *dev = dev_get_drvdata(d);
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
+	int ret = -ENODEV;
+	long value;
+
+	if (nouveau_perflvl_wr != 7777)
+		return -EPERM;
+
+	if (strict_strtol(buf, 10, &value) == -EINVAL)
+		return -EINVAL;
+
+	if (value < pm->fan.min_duty)
+		value = pm->fan.min_duty;
+	if (value > pm->fan.max_duty)
+		value = pm->fan.max_duty;
+
+	ret = nouveau_pwmfan_set(dev, value);
+	if (ret)
+		return ret;
+
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(pwm0, S_IRUGO | S_IWUSR,
+			  nouveau_hwmon_get_pwm0,
+			  nouveau_hwmon_set_pwm0, 0);
+
+static ssize_t
+nouveau_hwmon_get_pwm0_min(struct device *d,
+			   struct device_attribute *a, char *buf)
+{
+	struct drm_device *dev = dev_get_drvdata(d);
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
+
+	return sprintf(buf, "%i\n", pm->fan.min_duty);
+}
+
+static ssize_t
+nouveau_hwmon_set_pwm0_min(struct device *d, struct device_attribute *a,
+			   const char *buf, size_t count)
+{
+	struct drm_device *dev = dev_get_drvdata(d);
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
+	long value;
+
+	if (strict_strtol(buf, 10, &value) == -EINVAL)
+		return -EINVAL;
+
+	if (value < 0)
+		value = 0;
+
+	if (pm->fan.max_duty - value < 10)
+		value = pm->fan.max_duty - 10;
+
+	if (value < 10)
+		pm->fan.min_duty = 10;
+	else
+		pm->fan.min_duty = value;
+
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(pwm0_min, S_IRUGO | S_IWUSR,
+			  nouveau_hwmon_get_pwm0_min,
+			  nouveau_hwmon_set_pwm0_min, 0);
+
+static ssize_t
+nouveau_hwmon_get_pwm0_max(struct device *d,
+			   struct device_attribute *a, char *buf)
+{
+	struct drm_device *dev = dev_get_drvdata(d);
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
+
+	return sprintf(buf, "%i\n", pm->fan.max_duty);
+}
+
+static ssize_t
+nouveau_hwmon_set_pwm0_max(struct device *d, struct device_attribute *a,
+			   const char *buf, size_t count)
+{
+	struct drm_device *dev = dev_get_drvdata(d);
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
+	long value;
+
+	if (strict_strtol(buf, 10, &value) == -EINVAL)
+		return -EINVAL;
+
+	if (value < 0)
+		value = 0;
+
+	if (value - pm->fan.min_duty < 10)
+		value = pm->fan.min_duty + 10;
+
+	if (value > 100)
+		pm->fan.max_duty = 100;
+	else
+		pm->fan.max_duty = value;
+
+	return count;
+}
+
+static SENSOR_DEVICE_ATTR(pwm0_max, S_IRUGO | S_IWUSR,
+			  nouveau_hwmon_get_pwm0_max,
+			  nouveau_hwmon_set_pwm0_max, 0);
+
 static struct attribute *hwmon_attributes[] = {
 	&sensor_dev_attr_temp1_input.dev_attr.attr,
 	&sensor_dev_attr_temp1_max.dev_attr.attr,
@@ -420,20 +638,36 @@ static struct attribute *hwmon_attributes[] = {
 	&sensor_dev_attr_update_rate.dev_attr.attr,
 	NULL
 };
+static struct attribute *hwmon_fan_rpm_attributes[] = {
+	&sensor_dev_attr_fan0_input.dev_attr.attr,
+	NULL
+};
+static struct attribute *hwmon_pwm_fan_attributes[] = {
+	&sensor_dev_attr_pwm0.dev_attr.attr,
+	&sensor_dev_attr_pwm0_min.dev_attr.attr,
+	&sensor_dev_attr_pwm0_max.dev_attr.attr,
+	NULL
+};
 
 static const struct attribute_group hwmon_attrgroup = {
 	.attrs = hwmon_attributes,
 };
+static const struct attribute_group hwmon_fan_rpm_attrgroup = {
+	.attrs = hwmon_fan_rpm_attributes,
+};
+static const struct attribute_group hwmon_pwm_fan_attrgroup = {
+	.attrs = hwmon_pwm_fan_attributes,
+};
 #endif
 
 static int
 nouveau_hwmon_init(struct drm_device *dev)
 {
-#if defined(CONFIG_HWMON) || (defined(MODULE) && defined(CONFIG_HWMON_MODULE))
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
 	struct nouveau_pm_engine *pm = &dev_priv->engine.pm;
+#if defined(CONFIG_HWMON) || (defined(MODULE) && defined(CONFIG_HWMON_MODULE))
 	struct device *hwmon_dev;
-	int ret;
+	int ret = 0;
 
 	if (!pm->temp_get)
 		return -ENODEV;
@@ -446,17 +680,46 @@ nouveau_hwmon_init(struct drm_device *dev)
 		return ret;
 	}
 	dev_set_drvdata(hwmon_dev, dev);
+
+	/* default sysfs entries */
 	ret = sysfs_create_group(&dev->pdev->dev.kobj, &hwmon_attrgroup);
 	if (ret) {
-		NV_ERROR(dev,
-			"Unable to create hwmon sysfs file: %d\n", ret);
-		hwmon_device_unregister(hwmon_dev);
-		return ret;
+		if (ret)
+			goto error;
+	}
+
+	/* if the card has a pwm fan */
+	/*XXX: incorrect, need better detection for this, some boards have
+	 *     the gpio entries for pwm fan control even when there's no
+	 *     actual fan connected to it... therm table? */
+	if (nouveau_pwmfan_get(dev) >= 0) {
+		ret = sysfs_create_group(&dev->pdev->dev.kobj,
+					 &hwmon_pwm_fan_attrgroup);
+		if (ret)
+			goto error;
+	}
+
+	/* if the card can read the fan rpm */
+	if (nouveau_gpio_func_valid(dev, DCB_GPIO_FAN_SENSE)) {
+		ret = sysfs_create_group(&dev->pdev->dev.kobj,
+					 &hwmon_fan_rpm_attrgroup);
+		if (ret)
+			goto error;
 	}
 
 	pm->hwmon = hwmon_dev;
-#endif
+
+	return 0;
+
+error:
+	NV_ERROR(dev, "Unable to create some hwmon sysfs files: %d\n", ret);
+	hwmon_device_unregister(hwmon_dev);
+	pm->hwmon = NULL;
+	return ret;
+#else
+	pm->hwmon = NULL;
 	return 0;
+#endif
 }
 
 static void
@@ -468,6 +731,9 @@ nouveau_hwmon_fini(struct drm_device *dev)
 
 	if (pm->hwmon) {
 		sysfs_remove_group(&dev->pdev->dev.kobj, &hwmon_attrgroup);
+		sysfs_remove_group(&dev->pdev->dev.kobj, &hwmon_pwm_fan_attrgroup);
+		sysfs_remove_group(&dev->pdev->dev.kobj, &hwmon_fan_rpm_attrgroup);
+
 		hwmon_device_unregister(pm->hwmon);
 	}
 #endif
diff --git a/drivers/gpu/drm/nouveau/nouveau_pm.h b/drivers/gpu/drm/nouveau/nouveau_pm.h
index 8ac02cdd03a1..2f8e14fbcff8 100644
--- a/drivers/gpu/drm/nouveau/nouveau_pm.h
+++ b/drivers/gpu/drm/nouveau/nouveau_pm.h
@@ -47,29 +47,33 @@ void nouveau_mem_timing_init(struct drm_device *);
 void nouveau_mem_timing_fini(struct drm_device *);
 
 /* nv04_pm.c */
-int nv04_pm_clock_get(struct drm_device *, u32 id);
-void *nv04_pm_clock_pre(struct drm_device *, struct nouveau_pm_level *,
-			u32 id, int khz);
-void nv04_pm_clock_set(struct drm_device *, void *);
+int nv04_pm_clocks_get(struct drm_device *, struct nouveau_pm_level *);
+void *nv04_pm_clocks_pre(struct drm_device *, struct nouveau_pm_level *);
+int nv04_pm_clocks_set(struct drm_device *, void *);
 
 /* nv40_pm.c */
 int nv40_pm_clocks_get(struct drm_device *, struct nouveau_pm_level *);
 void *nv40_pm_clocks_pre(struct drm_device *, struct nouveau_pm_level *);
-void nv40_pm_clocks_set(struct drm_device *, void *);
+int nv40_pm_clocks_set(struct drm_device *, void *);
+int nv40_pm_pwm_get(struct drm_device *, int, u32 *, u32 *);
+int nv40_pm_pwm_set(struct drm_device *, int, u32, u32);
 
 /* nv50_pm.c */
-int nv50_pm_clock_get(struct drm_device *, u32 id);
-void *nv50_pm_clock_pre(struct drm_device *, struct nouveau_pm_level *,
-			u32 id, int khz);
-void nv50_pm_clock_set(struct drm_device *, void *);
+int nv50_pm_clocks_get(struct drm_device *, struct nouveau_pm_level *);
+void *nv50_pm_clocks_pre(struct drm_device *, struct nouveau_pm_level *);
+int nv50_pm_clocks_set(struct drm_device *, void *);
+int nv50_pm_pwm_get(struct drm_device *, int, u32 *, u32 *);
+int nv50_pm_pwm_set(struct drm_device *, int, u32, u32);
 
 /* nva3_pm.c */
 int nva3_pm_clocks_get(struct drm_device *, struct nouveau_pm_level *);
 void *nva3_pm_clocks_pre(struct drm_device *, struct nouveau_pm_level *);
-void nva3_pm_clocks_set(struct drm_device *, void *);
+int nva3_pm_clocks_set(struct drm_device *, void *);
 
 /* nvc0_pm.c */
 int nvc0_pm_clocks_get(struct drm_device *, struct nouveau_pm_level *);
+void *nvc0_pm_clocks_pre(struct drm_device *, struct nouveau_pm_level *);
+int nvc0_pm_clocks_set(struct drm_device *, void *);
 
 /* nouveau_temp.c */
 void nouveau_temp_init(struct drm_device *dev);
diff --git a/drivers/gpu/drm/nouveau/nouveau_sgdma.c b/drivers/gpu/drm/nouveau/nouveau_sgdma.c
index c8a463b76c89..47f245edf538 100644
--- a/drivers/gpu/drm/nouveau/nouveau_sgdma.c
+++ b/drivers/gpu/drm/nouveau/nouveau_sgdma.c
@@ -8,91 +8,30 @@
 #define NV_CTXDMA_PAGE_MASK  (NV_CTXDMA_PAGE_SIZE - 1)
 
 struct nouveau_sgdma_be {
-	struct ttm_backend backend;
+	/* this has to be the first field so populate/unpopulated in
+	 * nouve_bo.c works properly, otherwise have to move them here
+	 */
+	struct ttm_dma_tt ttm;
 	struct drm_device *dev;
-
-	dma_addr_t *pages;
-	unsigned nr_pages;
-	bool unmap_pages;
-
 	u64 offset;
-	bool bound;
 };
 
-static int
-nouveau_sgdma_populate(struct ttm_backend *be, unsigned long num_pages,
-		       struct page **pages, struct page *dummy_read_page,
-		       dma_addr_t *dma_addrs)
-{
-	struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)be;
-	struct drm_device *dev = nvbe->dev;
-	int i;
-
-	NV_DEBUG(nvbe->dev, "num_pages = %ld\n", num_pages);
-
-	nvbe->pages = dma_addrs;
-	nvbe->nr_pages = num_pages;
-	nvbe->unmap_pages = true;
-
-	/* this code path isn't called and is incorrect anyways */
-	if (0) { /* dma_addrs[0] != DMA_ERROR_CODE) { */
-		nvbe->unmap_pages = false;
-		return 0;
-	}
-
-	for (i = 0; i < num_pages; i++) {
-		nvbe->pages[i] = pci_map_page(dev->pdev, pages[i], 0,
-					      PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
-		if (pci_dma_mapping_error(dev->pdev, nvbe->pages[i])) {
-			nvbe->nr_pages = --i;
-			be->func->clear(be);
-			return -EFAULT;
-		}
-	}
-
-	return 0;
-}
-
 static void
-nouveau_sgdma_clear(struct ttm_backend *be)
+nouveau_sgdma_destroy(struct ttm_tt *ttm)
 {
-	struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)be;
-	struct drm_device *dev = nvbe->dev;
-
-	if (nvbe->bound)
-		be->func->unbind(be);
+	struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)ttm;
 
-	if (nvbe->unmap_pages) {
-		while (nvbe->nr_pages--) {
-			pci_unmap_page(dev->pdev, nvbe->pages[nvbe->nr_pages],
-				       PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
-		}
-		nvbe->unmap_pages = false;
-	}
-
-	nvbe->pages = NULL;
-}
-
-static void
-nouveau_sgdma_destroy(struct ttm_backend *be)
-{
-	struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)be;
-
-	if (be) {
+	if (ttm) {
 		NV_DEBUG(nvbe->dev, "\n");
-
-		if (nvbe) {
-			if (nvbe->pages)
-				be->func->clear(be);
-			kfree(nvbe);
-		}
+		ttm_dma_tt_fini(&nvbe->ttm);
+		kfree(nvbe);
 	}
 }
 
 static int
-nv04_sgdma_bind(struct ttm_backend *be, struct ttm_mem_reg *mem)
+nv04_sgdma_bind(struct ttm_tt *ttm, struct ttm_mem_reg *mem)
 {
-	struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)be;
+	struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)ttm;
 	struct drm_device *dev = nvbe->dev;
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
 	struct nouveau_gpuobj *gpuobj = dev_priv->gart_info.sg_ctxdma;
@@ -102,8 +41,8 @@ nv04_sgdma_bind(struct ttm_backend *be, struct ttm_mem_reg *mem)
 
 	nvbe->offset = mem->start << PAGE_SHIFT;
 	pte = (nvbe->offset >> NV_CTXDMA_PAGE_SHIFT) + 2;
-	for (i = 0; i < nvbe->nr_pages; i++) {
-		dma_addr_t dma_offset = nvbe->pages[i];
+	for (i = 0; i < ttm->num_pages; i++) {
+		dma_addr_t dma_offset = nvbe->ttm.dma_address[i];
 		uint32_t offset_l = lower_32_bits(dma_offset);
 
 		for (j = 0; j < PAGE_SIZE / NV_CTXDMA_PAGE_SIZE; j++, pte++) {
@@ -112,14 +51,13 @@ nv04_sgdma_bind(struct ttm_backend *be, struct ttm_mem_reg *mem)
 		}
 	}
 
-	nvbe->bound = true;
 	return 0;
 }
 
 static int
-nv04_sgdma_unbind(struct ttm_backend *be)
+nv04_sgdma_unbind(struct ttm_tt *ttm)
 {
-	struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)be;
+	struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)ttm;
 	struct drm_device *dev = nvbe->dev;
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
 	struct nouveau_gpuobj *gpuobj = dev_priv->gart_info.sg_ctxdma;
@@ -127,22 +65,19 @@ nv04_sgdma_unbind(struct ttm_backend *be)
 
 	NV_DEBUG(dev, "\n");
 
-	if (!nvbe->bound)
+	if (ttm->state != tt_bound)
 		return 0;
 
 	pte = (nvbe->offset >> NV_CTXDMA_PAGE_SHIFT) + 2;
-	for (i = 0; i < nvbe->nr_pages; i++) {
+	for (i = 0; i < ttm->num_pages; i++) {
 		for (j = 0; j < PAGE_SIZE / NV_CTXDMA_PAGE_SIZE; j++, pte++)
 			nv_wo32(gpuobj, (pte * 4) + 0, 0x00000000);
 	}
 
-	nvbe->bound = false;
 	return 0;
 }
 
 static struct ttm_backend_func nv04_sgdma_backend = {
-	.populate		= nouveau_sgdma_populate,
-	.clear			= nouveau_sgdma_clear,
 	.bind			= nv04_sgdma_bind,
 	.unbind			= nv04_sgdma_unbind,
 	.destroy		= nouveau_sgdma_destroy
@@ -161,14 +96,14 @@ nv41_sgdma_flush(struct nouveau_sgdma_be *nvbe)
 }
 
 static int
-nv41_sgdma_bind(struct ttm_backend *be, struct ttm_mem_reg *mem)
+nv41_sgdma_bind(struct ttm_tt *ttm, struct ttm_mem_reg *mem)
 {
-	struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)be;
+	struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)ttm;
 	struct drm_nouveau_private *dev_priv = nvbe->dev->dev_private;
 	struct nouveau_gpuobj *pgt = dev_priv->gart_info.sg_ctxdma;
-	dma_addr_t *list = nvbe->pages;
+	dma_addr_t *list = nvbe->ttm.dma_address;
 	u32 pte = mem->start << 2;
-	u32 cnt = nvbe->nr_pages;
+	u32 cnt = ttm->num_pages;
 
 	nvbe->offset = mem->start << PAGE_SHIFT;
 
@@ -178,18 +113,17 @@ nv41_sgdma_bind(struct ttm_backend *be, struct ttm_mem_reg *mem)
 	}
 
 	nv41_sgdma_flush(nvbe);
-	nvbe->bound = true;
 	return 0;
 }
 
 static int
-nv41_sgdma_unbind(struct ttm_backend *be)
+nv41_sgdma_unbind(struct ttm_tt *ttm)
 {
-	struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)be;
+	struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)ttm;
 	struct drm_nouveau_private *dev_priv = nvbe->dev->dev_private;
 	struct nouveau_gpuobj *pgt = dev_priv->gart_info.sg_ctxdma;
 	u32 pte = (nvbe->offset >> 12) << 2;
-	u32 cnt = nvbe->nr_pages;
+	u32 cnt = ttm->num_pages;
 
 	while (cnt--) {
 		nv_wo32(pgt, pte, 0x00000000);
@@ -197,24 +131,22 @@ nv41_sgdma_unbind(struct ttm_backend *be)
 	}
 
 	nv41_sgdma_flush(nvbe);
-	nvbe->bound = false;
 	return 0;
 }
 
 static struct ttm_backend_func nv41_sgdma_backend = {
-	.populate		= nouveau_sgdma_populate,
-	.clear			= nouveau_sgdma_clear,
 	.bind			= nv41_sgdma_bind,
 	.unbind			= nv41_sgdma_unbind,
 	.destroy		= nouveau_sgdma_destroy
 };
 
 static void
-nv44_sgdma_flush(struct nouveau_sgdma_be *nvbe)
+nv44_sgdma_flush(struct ttm_tt *ttm)
 {
+	struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)ttm;
 	struct drm_device *dev = nvbe->dev;
 
-	nv_wr32(dev, 0x100814, (nvbe->nr_pages - 1) << 12);
+	nv_wr32(dev, 0x100814, (ttm->num_pages - 1) << 12);
 	nv_wr32(dev, 0x100808, nvbe->offset | 0x20);
 	if (!nv_wait(dev, 0x100808, 0x00000001, 0x00000001))
 		NV_ERROR(dev, "gart flush timeout: 0x%08x\n",
@@ -273,14 +205,14 @@ nv44_sgdma_fill(struct nouveau_gpuobj *pgt, dma_addr_t *list, u32 base, u32 cnt)
 }
 
 static int
-nv44_sgdma_bind(struct ttm_backend *be, struct ttm_mem_reg *mem)
+nv44_sgdma_bind(struct ttm_tt *ttm, struct ttm_mem_reg *mem)
 {
-	struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)be;
+	struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)ttm;
 	struct drm_nouveau_private *dev_priv = nvbe->dev->dev_private;
 	struct nouveau_gpuobj *pgt = dev_priv->gart_info.sg_ctxdma;
-	dma_addr_t *list = nvbe->pages;
+	dma_addr_t *list = nvbe->ttm.dma_address;
 	u32 pte = mem->start << 2, tmp[4];
-	u32 cnt = nvbe->nr_pages;
+	u32 cnt = ttm->num_pages;
 	int i;
 
 	nvbe->offset = mem->start << PAGE_SHIFT;
@@ -308,19 +240,18 @@ nv44_sgdma_bind(struct ttm_backend *be, struct ttm_mem_reg *mem)
 	if (cnt)
 		nv44_sgdma_fill(pgt, list, pte, cnt);
 
-	nv44_sgdma_flush(nvbe);
-	nvbe->bound = true;
+	nv44_sgdma_flush(ttm);
 	return 0;
 }
 
 static int
-nv44_sgdma_unbind(struct ttm_backend *be)
+nv44_sgdma_unbind(struct ttm_tt *ttm)
 {
-	struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)be;
+	struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)ttm;
 	struct drm_nouveau_private *dev_priv = nvbe->dev->dev_private;
 	struct nouveau_gpuobj *pgt = dev_priv->gart_info.sg_ctxdma;
 	u32 pte = (nvbe->offset >> 12) << 2;
-	u32 cnt = nvbe->nr_pages;
+	u32 cnt = ttm->num_pages;
 
 	if (pte & 0x0000000c) {
 		u32  max = 4 - ((pte >> 2) & 0x3);
@@ -342,55 +273,47 @@ nv44_sgdma_unbind(struct ttm_backend *be)
 	if (cnt)
 		nv44_sgdma_fill(pgt, NULL, pte, cnt);
 
-	nv44_sgdma_flush(nvbe);
-	nvbe->bound = false;
+	nv44_sgdma_flush(ttm);
 	return 0;
 }
 
 static struct ttm_backend_func nv44_sgdma_backend = {
-	.populate		= nouveau_sgdma_populate,
-	.clear			= nouveau_sgdma_clear,
 	.bind			= nv44_sgdma_bind,
 	.unbind			= nv44_sgdma_unbind,
 	.destroy		= nouveau_sgdma_destroy
 };
 
 static int
-nv50_sgdma_bind(struct ttm_backend *be, struct ttm_mem_reg *mem)
+nv50_sgdma_bind(struct ttm_tt *ttm, struct ttm_mem_reg *mem)
 {
-	struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)be;
+	struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)ttm;
 	struct nouveau_mem *node = mem->mm_node;
+
 	/* noop: bound in move_notify() */
-	node->pages = nvbe->pages;
-	nvbe->pages = (dma_addr_t *)node;
-	nvbe->bound = true;
+	node->pages = nvbe->ttm.dma_address;
 	return 0;
 }
 
 static int
-nv50_sgdma_unbind(struct ttm_backend *be)
+nv50_sgdma_unbind(struct ttm_tt *ttm)
 {
-	struct nouveau_sgdma_be *nvbe = (struct nouveau_sgdma_be *)be;
-	struct nouveau_mem *node = (struct nouveau_mem *)nvbe->pages;
 	/* noop: unbound in move_notify() */
-	nvbe->pages = node->pages;
-	node->pages = NULL;
-	nvbe->bound = false;
 	return 0;
 }
 
 static struct ttm_backend_func nv50_sgdma_backend = {
-	.populate		= nouveau_sgdma_populate,
-	.clear			= nouveau_sgdma_clear,
 	.bind			= nv50_sgdma_bind,
 	.unbind			= nv50_sgdma_unbind,
 	.destroy		= nouveau_sgdma_destroy
 };
 
-struct ttm_backend *
-nouveau_sgdma_init_ttm(struct drm_device *dev)
+struct ttm_tt *
+nouveau_sgdma_create_ttm(struct ttm_bo_device *bdev,
+			 unsigned long size, uint32_t page_flags,
+			 struct page *dummy_read_page)
 {
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct drm_nouveau_private *dev_priv = nouveau_bdev(bdev);
+	struct drm_device *dev = dev_priv->dev;
 	struct nouveau_sgdma_be *nvbe;
 
 	nvbe = kzalloc(sizeof(*nvbe), GFP_KERNEL);
@@ -398,9 +321,13 @@ nouveau_sgdma_init_ttm(struct drm_device *dev)
 		return NULL;
 
 	nvbe->dev = dev;
+	nvbe->ttm.ttm.func = dev_priv->gart_info.func;
 
-	nvbe->backend.func = dev_priv->gart_info.func;
-	return &nvbe->backend;
+	if (ttm_dma_tt_init(&nvbe->ttm, bdev, size, page_flags, dummy_read_page)) {
+		kfree(nvbe);
+		return NULL;
+	}
+	return &nvbe->ttm.ttm;
 }
 
 int
diff --git a/drivers/gpu/drm/nouveau/nouveau_state.c b/drivers/gpu/drm/nouveau/nouveau_state.c
index d8831ab42bb9..f5e98910d17f 100644
--- a/drivers/gpu/drm/nouveau/nouveau_state.c
+++ b/drivers/gpu/drm/nouveau/nouveau_state.c
@@ -36,6 +36,7 @@
 #include "nouveau_drm.h"
 #include "nouveau_fbcon.h"
 #include "nouveau_ramht.h"
+#include "nouveau_gpio.h"
 #include "nouveau_pm.h"
 #include "nv50_display.h"
 
@@ -80,16 +81,12 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
 		engine->display.early_init	= nv04_display_early_init;
 		engine->display.late_takedown	= nv04_display_late_takedown;
 		engine->display.create		= nv04_display_create;
-		engine->display.init		= nv04_display_init;
 		engine->display.destroy		= nv04_display_destroy;
-		engine->gpio.init		= nouveau_stub_init;
-		engine->gpio.takedown		= nouveau_stub_takedown;
-		engine->gpio.get		= NULL;
-		engine->gpio.set		= NULL;
-		engine->gpio.irq_enable		= NULL;
-		engine->pm.clock_get		= nv04_pm_clock_get;
-		engine->pm.clock_pre		= nv04_pm_clock_pre;
-		engine->pm.clock_set		= nv04_pm_clock_set;
+		engine->display.init		= nv04_display_init;
+		engine->display.fini		= nv04_display_fini;
+		engine->pm.clocks_get		= nv04_pm_clocks_get;
+		engine->pm.clocks_pre		= nv04_pm_clocks_pre;
+		engine->pm.clocks_set		= nv04_pm_clocks_set;
 		engine->vram.init		= nouveau_mem_detect;
 		engine->vram.takedown		= nouveau_stub_takedown;
 		engine->vram.flags_valid	= nouveau_mem_flags_valid;
@@ -129,16 +126,14 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
 		engine->display.early_init	= nv04_display_early_init;
 		engine->display.late_takedown	= nv04_display_late_takedown;
 		engine->display.create		= nv04_display_create;
-		engine->display.init		= nv04_display_init;
 		engine->display.destroy		= nv04_display_destroy;
-		engine->gpio.init		= nouveau_stub_init;
-		engine->gpio.takedown		= nouveau_stub_takedown;
-		engine->gpio.get		= nv10_gpio_get;
-		engine->gpio.set		= nv10_gpio_set;
-		engine->gpio.irq_enable		= NULL;
-		engine->pm.clock_get		= nv04_pm_clock_get;
-		engine->pm.clock_pre		= nv04_pm_clock_pre;
-		engine->pm.clock_set		= nv04_pm_clock_set;
+		engine->display.init		= nv04_display_init;
+		engine->display.fini		= nv04_display_fini;
+		engine->gpio.drive		= nv10_gpio_drive;
+		engine->gpio.sense		= nv10_gpio_sense;
+		engine->pm.clocks_get		= nv04_pm_clocks_get;
+		engine->pm.clocks_pre		= nv04_pm_clocks_pre;
+		engine->pm.clocks_set		= nv04_pm_clocks_set;
 		engine->vram.init		= nouveau_mem_detect;
 		engine->vram.takedown		= nouveau_stub_takedown;
 		engine->vram.flags_valid	= nouveau_mem_flags_valid;
@@ -178,16 +173,14 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
 		engine->display.early_init	= nv04_display_early_init;
 		engine->display.late_takedown	= nv04_display_late_takedown;
 		engine->display.create		= nv04_display_create;
-		engine->display.init		= nv04_display_init;
 		engine->display.destroy		= nv04_display_destroy;
-		engine->gpio.init		= nouveau_stub_init;
-		engine->gpio.takedown		= nouveau_stub_takedown;
-		engine->gpio.get		= nv10_gpio_get;
-		engine->gpio.set		= nv10_gpio_set;
-		engine->gpio.irq_enable		= NULL;
-		engine->pm.clock_get		= nv04_pm_clock_get;
-		engine->pm.clock_pre		= nv04_pm_clock_pre;
-		engine->pm.clock_set		= nv04_pm_clock_set;
+		engine->display.init		= nv04_display_init;
+		engine->display.fini		= nv04_display_fini;
+		engine->gpio.drive		= nv10_gpio_drive;
+		engine->gpio.sense		= nv10_gpio_sense;
+		engine->pm.clocks_get		= nv04_pm_clocks_get;
+		engine->pm.clocks_pre		= nv04_pm_clocks_pre;
+		engine->pm.clocks_set		= nv04_pm_clocks_set;
 		engine->vram.init		= nouveau_mem_detect;
 		engine->vram.takedown		= nouveau_stub_takedown;
 		engine->vram.flags_valid	= nouveau_mem_flags_valid;
@@ -227,16 +220,14 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
 		engine->display.early_init	= nv04_display_early_init;
 		engine->display.late_takedown	= nv04_display_late_takedown;
 		engine->display.create		= nv04_display_create;
-		engine->display.init		= nv04_display_init;
 		engine->display.destroy		= nv04_display_destroy;
-		engine->gpio.init		= nouveau_stub_init;
-		engine->gpio.takedown		= nouveau_stub_takedown;
-		engine->gpio.get		= nv10_gpio_get;
-		engine->gpio.set		= nv10_gpio_set;
-		engine->gpio.irq_enable		= NULL;
-		engine->pm.clock_get		= nv04_pm_clock_get;
-		engine->pm.clock_pre		= nv04_pm_clock_pre;
-		engine->pm.clock_set		= nv04_pm_clock_set;
+		engine->display.init		= nv04_display_init;
+		engine->display.fini		= nv04_display_fini;
+		engine->gpio.drive		= nv10_gpio_drive;
+		engine->gpio.sense		= nv10_gpio_sense;
+		engine->pm.clocks_get		= nv04_pm_clocks_get;
+		engine->pm.clocks_pre		= nv04_pm_clocks_pre;
+		engine->pm.clocks_set		= nv04_pm_clocks_set;
 		engine->pm.voltage_get		= nouveau_voltage_gpio_get;
 		engine->pm.voltage_set		= nouveau_voltage_gpio_set;
 		engine->vram.init		= nouveau_mem_detect;
@@ -279,19 +270,22 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
 		engine->display.early_init	= nv04_display_early_init;
 		engine->display.late_takedown	= nv04_display_late_takedown;
 		engine->display.create		= nv04_display_create;
-		engine->display.init		= nv04_display_init;
 		engine->display.destroy		= nv04_display_destroy;
-		engine->gpio.init		= nouveau_stub_init;
-		engine->gpio.takedown		= nouveau_stub_takedown;
-		engine->gpio.get		= nv10_gpio_get;
-		engine->gpio.set		= nv10_gpio_set;
-		engine->gpio.irq_enable		= NULL;
+		engine->display.init		= nv04_display_init;
+		engine->display.fini		= nv04_display_fini;
+		engine->gpio.init		= nv10_gpio_init;
+		engine->gpio.fini		= nv10_gpio_fini;
+		engine->gpio.drive		= nv10_gpio_drive;
+		engine->gpio.sense		= nv10_gpio_sense;
+		engine->gpio.irq_enable		= nv10_gpio_irq_enable;
 		engine->pm.clocks_get		= nv40_pm_clocks_get;
 		engine->pm.clocks_pre		= nv40_pm_clocks_pre;
 		engine->pm.clocks_set		= nv40_pm_clocks_set;
 		engine->pm.voltage_get		= nouveau_voltage_gpio_get;
 		engine->pm.voltage_set		= nouveau_voltage_gpio_set;
 		engine->pm.temp_get		= nv40_temp_get;
+		engine->pm.pwm_get		= nv40_pm_pwm_get;
+		engine->pm.pwm_set		= nv40_pm_pwm_set;
 		engine->vram.init		= nouveau_mem_detect;
 		engine->vram.takedown		= nouveau_stub_takedown;
 		engine->vram.flags_valid	= nouveau_mem_flags_valid;
@@ -334,14 +328,13 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
 		engine->display.early_init	= nv50_display_early_init;
 		engine->display.late_takedown	= nv50_display_late_takedown;
 		engine->display.create		= nv50_display_create;
-		engine->display.init		= nv50_display_init;
 		engine->display.destroy		= nv50_display_destroy;
+		engine->display.init		= nv50_display_init;
+		engine->display.fini		= nv50_display_fini;
 		engine->gpio.init		= nv50_gpio_init;
-		engine->gpio.takedown		= nv50_gpio_fini;
-		engine->gpio.get		= nv50_gpio_get;
-		engine->gpio.set		= nv50_gpio_set;
-		engine->gpio.irq_register	= nv50_gpio_irq_register;
-		engine->gpio.irq_unregister	= nv50_gpio_irq_unregister;
+		engine->gpio.fini		= nv50_gpio_fini;
+		engine->gpio.drive		= nv50_gpio_drive;
+		engine->gpio.sense		= nv50_gpio_sense;
 		engine->gpio.irq_enable		= nv50_gpio_irq_enable;
 		switch (dev_priv->chipset) {
 		case 0x84:
@@ -354,9 +347,9 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
 		case 0xaa:
 		case 0xac:
 		case 0x50:
-			engine->pm.clock_get	= nv50_pm_clock_get;
-			engine->pm.clock_pre	= nv50_pm_clock_pre;
-			engine->pm.clock_set	= nv50_pm_clock_set;
+			engine->pm.clocks_get	= nv50_pm_clocks_get;
+			engine->pm.clocks_pre	= nv50_pm_clocks_pre;
+			engine->pm.clocks_set	= nv50_pm_clocks_set;
 			break;
 		default:
 			engine->pm.clocks_get	= nva3_pm_clocks_get;
@@ -370,6 +363,8 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
 			engine->pm.temp_get	= nv84_temp_get;
 		else
 			engine->pm.temp_get	= nv40_temp_get;
+		engine->pm.pwm_get		= nv50_pm_pwm_get;
+		engine->pm.pwm_set		= nv50_pm_pwm_set;
 		engine->vram.init		= nv50_vram_init;
 		engine->vram.takedown		= nv50_vram_fini;
 		engine->vram.get		= nv50_vram_new;
@@ -407,14 +402,13 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
 		engine->display.early_init	= nv50_display_early_init;
 		engine->display.late_takedown	= nv50_display_late_takedown;
 		engine->display.create		= nv50_display_create;
-		engine->display.init		= nv50_display_init;
 		engine->display.destroy		= nv50_display_destroy;
+		engine->display.init		= nv50_display_init;
+		engine->display.fini		= nv50_display_fini;
 		engine->gpio.init		= nv50_gpio_init;
-		engine->gpio.takedown		= nouveau_stub_takedown;
-		engine->gpio.get		= nv50_gpio_get;
-		engine->gpio.set		= nv50_gpio_set;
-		engine->gpio.irq_register	= nv50_gpio_irq_register;
-		engine->gpio.irq_unregister	= nv50_gpio_irq_unregister;
+		engine->gpio.fini		= nv50_gpio_fini;
+		engine->gpio.drive		= nv50_gpio_drive;
+		engine->gpio.sense		= nv50_gpio_sense;
 		engine->gpio.irq_enable		= nv50_gpio_irq_enable;
 		engine->vram.init		= nvc0_vram_init;
 		engine->vram.takedown		= nv50_vram_fini;
@@ -423,8 +417,12 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
 		engine->vram.flags_valid	= nvc0_vram_flags_valid;
 		engine->pm.temp_get		= nv84_temp_get;
 		engine->pm.clocks_get		= nvc0_pm_clocks_get;
+		engine->pm.clocks_pre		= nvc0_pm_clocks_pre;
+		engine->pm.clocks_set		= nvc0_pm_clocks_set;
 		engine->pm.voltage_get		= nouveau_voltage_gpio_get;
 		engine->pm.voltage_set		= nouveau_voltage_gpio_set;
+		engine->pm.pwm_get		= nv50_pm_pwm_get;
+		engine->pm.pwm_set		= nv50_pm_pwm_set;
 		break;
 	case 0xd0:
 		engine->instmem.init		= nvc0_instmem_init;
@@ -457,21 +455,23 @@ static int nouveau_init_engine_ptrs(struct drm_device *dev)
 		engine->display.early_init	= nouveau_stub_init;
 		engine->display.late_takedown	= nouveau_stub_takedown;
 		engine->display.create		= nvd0_display_create;
-		engine->display.init		= nvd0_display_init;
 		engine->display.destroy		= nvd0_display_destroy;
+		engine->display.init		= nvd0_display_init;
+		engine->display.fini		= nvd0_display_fini;
 		engine->gpio.init		= nv50_gpio_init;
-		engine->gpio.takedown		= nouveau_stub_takedown;
-		engine->gpio.get		= nvd0_gpio_get;
-		engine->gpio.set		= nvd0_gpio_set;
-		engine->gpio.irq_register	= nv50_gpio_irq_register;
-		engine->gpio.irq_unregister	= nv50_gpio_irq_unregister;
+		engine->gpio.fini		= nv50_gpio_fini;
+		engine->gpio.drive		= nvd0_gpio_drive;
+		engine->gpio.sense		= nvd0_gpio_sense;
 		engine->gpio.irq_enable		= nv50_gpio_irq_enable;
 		engine->vram.init		= nvc0_vram_init;
 		engine->vram.takedown		= nv50_vram_fini;
 		engine->vram.get		= nvc0_vram_new;
 		engine->vram.put		= nv50_vram_del;
 		engine->vram.flags_valid	= nvc0_vram_flags_valid;
+		engine->pm.temp_get		= nv84_temp_get;
 		engine->pm.clocks_get		= nvc0_pm_clocks_get;
+		engine->pm.clocks_pre		= nvc0_pm_clocks_pre;
+		engine->pm.clocks_set		= nvc0_pm_clocks_set;
 		engine->pm.voltage_get		= nouveau_voltage_gpio_get;
 		engine->pm.voltage_set		= nouveau_voltage_gpio_set;
 		break;
@@ -615,7 +615,7 @@ nouveau_card_init(struct drm_device *dev)
 		goto out_gart;
 
 	/* PGPIO */
-	ret = engine->gpio.init(dev);
+	ret = nouveau_gpio_create(dev);
 	if (ret)
 		goto out_mc;
 
@@ -648,6 +648,7 @@ nouveau_card_init(struct drm_device *dev)
 			nv50_graph_create(dev);
 			break;
 		case NV_C0:
+		case NV_D0:
 			nvc0_graph_create(dev);
 			break;
 		default:
@@ -663,6 +664,11 @@ nouveau_card_init(struct drm_device *dev)
 		case 0xa0:
 			nv84_crypt_create(dev);
 			break;
+		case 0x98:
+		case 0xaa:
+		case 0xac:
+			nv98_crypt_create(dev);
+			break;
 		}
 
 		switch (dev_priv->card_type) {
@@ -684,15 +690,25 @@ nouveau_card_init(struct drm_device *dev)
 			break;
 		}
 
+		if (dev_priv->chipset >= 0xa3 || dev_priv->chipset == 0x98) {
+			nv84_bsp_create(dev);
+			nv84_vp_create(dev);
+			nv98_ppp_create(dev);
+		} else
+		if (dev_priv->chipset >= 0x84) {
+			nv50_mpeg_create(dev);
+			nv84_bsp_create(dev);
+			nv84_vp_create(dev);
+		} else
+		if (dev_priv->chipset >= 0x50) {
+			nv50_mpeg_create(dev);
+		} else
 		if (dev_priv->card_type == NV_40 ||
 		    dev_priv->chipset == 0x31 ||
 		    dev_priv->chipset == 0x34 ||
-		    dev_priv->chipset == 0x36)
+		    dev_priv->chipset == 0x36) {
 			nv31_mpeg_create(dev);
-		else
-		if (dev_priv->card_type == NV_50 &&
-		    (dev_priv->chipset < 0x98 || dev_priv->chipset == 0xa0))
-			nv50_mpeg_create(dev);
+		}
 
 		for (e = 0; e < NVOBJ_ENGINE_NR; e++) {
 			if (dev_priv->eng[e]) {
@@ -712,27 +728,7 @@ nouveau_card_init(struct drm_device *dev)
 	if (ret)
 		goto out_fifo;
 
-	/* initialise general modesetting */
-	drm_mode_config_init(dev);
-	drm_mode_create_scaling_mode_property(dev);
-	drm_mode_create_dithering_property(dev);
-	dev->mode_config.funcs = (void *)&nouveau_mode_config_funcs;
-	dev->mode_config.fb_base = pci_resource_start(dev->pdev, 1);
-	dev->mode_config.min_width = 0;
-	dev->mode_config.min_height = 0;
-	if (dev_priv->card_type < NV_10) {
-		dev->mode_config.max_width = 2048;
-		dev->mode_config.max_height = 2048;
-	} else
-	if (dev_priv->card_type < NV_50) {
-		dev->mode_config.max_width = 4096;
-		dev->mode_config.max_height = 4096;
-	} else {
-		dev->mode_config.max_width = 8192;
-		dev->mode_config.max_height = 8192;
-	}
-
-	ret = engine->display.create(dev);
+	ret = nouveau_display_create(dev);
 	if (ret)
 		goto out_irq;
 
@@ -752,12 +748,11 @@ nouveau_card_init(struct drm_device *dev)
 	}
 
 	if (dev->mode_config.num_crtc) {
-		ret = drm_vblank_init(dev, dev->mode_config.num_crtc);
+		ret = nouveau_display_init(dev);
 		if (ret)
 			goto out_chan;
 
 		nouveau_fbcon_init(dev);
-		drm_kms_helper_poll_init(dev);
 	}
 
 	return 0;
@@ -768,7 +763,7 @@ out_fence:
 	nouveau_fence_fini(dev);
 out_disp:
 	nouveau_backlight_exit(dev);
-	engine->display.destroy(dev);
+	nouveau_display_destroy(dev);
 out_irq:
 	nouveau_irq_fini(dev);
 out_fifo:
@@ -788,7 +783,7 @@ out_engine:
 out_timer:
 	engine->timer.takedown(dev);
 out_gpio:
-	engine->gpio.takedown(dev);
+	nouveau_gpio_destroy(dev);
 out_mc:
 	engine->mc.takedown(dev);
 out_gart:
@@ -818,9 +813,8 @@ static void nouveau_card_takedown(struct drm_device *dev)
 	int e;
 
 	if (dev->mode_config.num_crtc) {
-		drm_kms_helper_poll_fini(dev);
 		nouveau_fbcon_fini(dev);
-		drm_vblank_cleanup(dev);
+		nouveau_display_fini(dev);
 	}
 
 	if (dev_priv->channel) {
@@ -829,8 +823,7 @@ static void nouveau_card_takedown(struct drm_device *dev)
 	}
 
 	nouveau_backlight_exit(dev);
-	engine->display.destroy(dev);
-	drm_mode_config_cleanup(dev);
+	nouveau_display_destroy(dev);
 
 	if (!dev_priv->noaccel) {
 		engine->fifo.takedown(dev);
@@ -843,7 +836,7 @@ static void nouveau_card_takedown(struct drm_device *dev)
 	}
 	engine->fb.takedown(dev);
 	engine->timer.takedown(dev);
-	engine->gpio.takedown(dev);
+	nouveau_gpio_destroy(dev);
 	engine->mc.takedown(dev);
 	engine->display.late_takedown(dev);
 
@@ -1110,13 +1103,11 @@ int nouveau_load(struct drm_device *dev, unsigned long flags)
 	dev_priv->noaccel = !!nouveau_noaccel;
 	if (nouveau_noaccel == -1) {
 		switch (dev_priv->chipset) {
-#if 0
-		case 0xXX: /* known broken */
+		case 0xd9: /* known broken */
 			NV_INFO(dev, "acceleration disabled by default, pass "
 				     "noaccel=0 to force enable\n");
 			dev_priv->noaccel = true;
 			break;
-#endif
 		default:
 			dev_priv->noaccel = false;
 			break;
@@ -1238,7 +1229,7 @@ int nouveau_ioctl_getparam(struct drm_device *dev, void *data,
 		getparam->value = 1;
 		break;
 	case NOUVEAU_GETPARAM_HAS_PAGEFLIP:
-		getparam->value = dev_priv->card_type < NV_D0;
+		getparam->value = 1;
 		break;
 	case NOUVEAU_GETPARAM_GRAPH_UNITS:
 		/* NV40 and NV50 versions are quite different, but register
diff --git a/drivers/gpu/drm/nouveau/nouveau_temp.c b/drivers/gpu/drm/nouveau/nouveau_temp.c
index 5a46446dd5a8..0f5a30160556 100644
--- a/drivers/gpu/drm/nouveau/nouveau_temp.c
+++ b/drivers/gpu/drm/nouveau/nouveau_temp.c
@@ -55,6 +55,10 @@ nouveau_temp_vbios_parse(struct drm_device *dev, u8 *temp)
 	temps->down_clock = 100;
 	temps->fan_boost = 90;
 
+	/* Set the default range for the pwm fan */
+	pm->fan.min_duty = 30;
+	pm->fan.max_duty = 100;
+
 	/* Set the known default values to setup the temperature sensor */
 	if (dev_priv->card_type >= NV_40) {
 		switch (dev_priv->chipset) {
@@ -156,11 +160,26 @@ nouveau_temp_vbios_parse(struct drm_device *dev, u8 *temp)
 		case 0x13:
 			sensor->slope_div = value;
 			break;
+		case 0x22:
+			pm->fan.min_duty = value & 0xff;
+			pm->fan.max_duty = (value & 0xff00) >> 8;
+			break;
+		case 0x26:
+			pm->fan.pwm_freq = value;
+			break;
 		}
 		temp += recordlen;
 	}
 
 	nouveau_temp_safety_checks(dev);
+
+	/* check the fan min/max settings */
+	if (pm->fan.min_duty < 10)
+		pm->fan.min_duty = 10;
+	if (pm->fan.max_duty > 100)
+		pm->fan.max_duty = 100;
+	if (pm->fan.max_duty < pm->fan.min_duty)
+		pm->fan.max_duty = pm->fan.min_duty;
 }
 
 static int
@@ -267,8 +286,6 @@ probe_monitoring_device(struct nouveau_i2c_chan *i2c,
 static void
 nouveau_temp_probe_i2c(struct drm_device *dev)
 {
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct dcb_table *dcb = &dev_priv->vbios.dcb;
 	struct i2c_board_info info[] = {
 		{ I2C_BOARD_INFO("w83l785ts", 0x2d) },
 		{ I2C_BOARD_INFO("w83781d", 0x2d) },
@@ -277,11 +294,9 @@ nouveau_temp_probe_i2c(struct drm_device *dev)
 		{ I2C_BOARD_INFO("lm99", 0x4c) },
 		{ }
 	};
-	int idx = (dcb->version >= 0x40 ?
-		   dcb->i2c_default_indices & 0xf : 2);
 
 	nouveau_i2c_identify(dev, "monitoring device", info,
-			     probe_monitoring_device, idx);
+			     probe_monitoring_device, NV_I2C_DEFAULT(0));
 }
 
 void
@@ -297,9 +312,9 @@ nouveau_temp_init(struct drm_device *dev)
 			return;
 
 		if (P.version == 1)
-			temp = ROMPTR(bios, P.data[12]);
+			temp = ROMPTR(dev, P.data[12]);
 		else if (P.version == 2)
-			temp = ROMPTR(bios, P.data[16]);
+			temp = ROMPTR(dev, P.data[16]);
 		else
 			NV_WARN(dev, "unknown temp for BIT P %d\n", P.version);
 
diff --git a/drivers/gpu/drm/nouveau/nouveau_vm.c b/drivers/gpu/drm/nouveau/nouveau_vm.c
index ef0832b29ad2..2bf6c0350b4b 100644
--- a/drivers/gpu/drm/nouveau/nouveau_vm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_vm.c
@@ -78,9 +78,10 @@ nouveau_vm_map(struct nouveau_vma *vma, struct nouveau_mem *node)
 
 void
 nouveau_vm_map_sg(struct nouveau_vma *vma, u64 delta, u64 length,
-		  struct nouveau_mem *mem, dma_addr_t *list)
+		  struct nouveau_mem *mem)
 {
 	struct nouveau_vm *vm = vma->vm;
+	dma_addr_t *list = mem->pages;
 	int big = vma->node->type != vm->spg_shift;
 	u32 offset = vma->node->offset + (delta >> 12);
 	u32 bits = vma->node->type - 12;
diff --git a/drivers/gpu/drm/nouveau/nouveau_vm.h b/drivers/gpu/drm/nouveau/nouveau_vm.h
index 6ce995f7797e..4fb6e728734d 100644
--- a/drivers/gpu/drm/nouveau/nouveau_vm.h
+++ b/drivers/gpu/drm/nouveau/nouveau_vm.h
@@ -89,7 +89,7 @@ void nouveau_vm_map_at(struct nouveau_vma *, u64 offset, struct nouveau_mem *);
 void nouveau_vm_unmap(struct nouveau_vma *);
 void nouveau_vm_unmap_at(struct nouveau_vma *, u64 offset, u64 length);
 void nouveau_vm_map_sg(struct nouveau_vma *, u64 offset, u64 length,
-		       struct nouveau_mem *, dma_addr_t *);
+		       struct nouveau_mem *);
 
 /* nv50_vm.c */
 void nv50_vm_map_pgt(struct nouveau_gpuobj *pgd, u32 pde,
diff --git a/drivers/gpu/drm/nouveau/nouveau_volt.c b/drivers/gpu/drm/nouveau/nouveau_volt.c
index 86d03e15735d..b010cb997b34 100644
--- a/drivers/gpu/drm/nouveau/nouveau_volt.c
+++ b/drivers/gpu/drm/nouveau/nouveau_volt.c
@@ -26,6 +26,7 @@
 
 #include "nouveau_drv.h"
 #include "nouveau_pm.h"
+#include "nouveau_gpio.h"
 
 static const enum dcb_gpio_tag vidtag[] = { 0x04, 0x05, 0x06, 0x1a, 0x73 };
 static int nr_vidtag = sizeof(vidtag) / sizeof(vidtag[0]);
@@ -34,7 +35,6 @@ int
 nouveau_voltage_gpio_get(struct drm_device *dev)
 {
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_gpio_engine *gpio = &dev_priv->engine.gpio;
 	struct nouveau_pm_voltage *volt = &dev_priv->engine.pm.voltage;
 	u8 vid = 0;
 	int i;
@@ -43,7 +43,7 @@ nouveau_voltage_gpio_get(struct drm_device *dev)
 		if (!(volt->vid_mask & (1 << i)))
 			continue;
 
-		vid |= gpio->get(dev, vidtag[i]) << i;
+		vid |= nouveau_gpio_func_get(dev, vidtag[i]) << i;
 	}
 
 	return nouveau_volt_lvl_lookup(dev, vid);
@@ -53,7 +53,6 @@ int
 nouveau_voltage_gpio_set(struct drm_device *dev, int voltage)
 {
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_gpio_engine *gpio = &dev_priv->engine.gpio;
 	struct nouveau_pm_voltage *volt = &dev_priv->engine.pm.voltage;
 	int vid, i;
 
@@ -65,7 +64,7 @@ nouveau_voltage_gpio_set(struct drm_device *dev, int voltage)
 		if (!(volt->vid_mask & (1 << i)))
 			continue;
 
-		gpio->set(dev, vidtag[i], !!(vid & (1 << i)));
+		nouveau_gpio_func_set(dev, vidtag[i], !!(vid & (1 << i)));
 	}
 
 	return 0;
@@ -117,10 +116,10 @@ nouveau_volt_init(struct drm_device *dev)
 			return;
 
 		if (P.version == 1)
-			volt = ROMPTR(bios, P.data[16]);
+			volt = ROMPTR(dev, P.data[16]);
 		else
 		if (P.version == 2)
-			volt = ROMPTR(bios, P.data[12]);
+			volt = ROMPTR(dev, P.data[12]);
 		else {
 			NV_WARN(dev, "unknown volt for BIT P %d\n", P.version);
 		}
@@ -130,7 +129,7 @@ nouveau_volt_init(struct drm_device *dev)
 			return;
 		}
 
-		volt = ROMPTR(bios, bios->data[bios->offset + 0x98]);
+		volt = ROMPTR(dev, bios->data[bios->offset + 0x98]);
 	}
 
 	if (!volt) {
@@ -194,7 +193,7 @@ nouveau_volt_init(struct drm_device *dev)
 			return;
 		}
 
-		if (!nouveau_bios_gpio_entry(dev, vidtag[i])) {
+		if (!nouveau_gpio_func_valid(dev, vidtag[i])) {
 			NV_DEBUG(dev, "vid bit %d has no gpio tag\n", i);
 			return;
 		}
diff --git a/drivers/gpu/drm/nouveau/nv04_crtc.c b/drivers/gpu/drm/nouveau/nv04_crtc.c
index 5e45398a9e2d..728d07584d39 100644
--- a/drivers/gpu/drm/nouveau/nv04_crtc.c
+++ b/drivers/gpu/drm/nouveau/nv04_crtc.c
@@ -364,7 +364,7 @@ nv_crtc_mode_set_vga(struct drm_crtc *crtc, struct drm_display_mode *mode)
 	regp->CRTC[NV_CIO_CR_VRE_INDEX] = 1 << 5 | XLATE(vertEnd, 0, NV_CIO_CR_VRE_3_0);
 	regp->CRTC[NV_CIO_CR_VDE_INDEX] = vertDisplay;
 	/* framebuffer can be larger than crtc scanout area. */
-	regp->CRTC[NV_CIO_CR_OFFSET_INDEX] = fb->pitch / 8;
+	regp->CRTC[NV_CIO_CR_OFFSET_INDEX] = fb->pitches[0] / 8;
 	regp->CRTC[NV_CIO_CR_ULINE_INDEX] = 0x00;
 	regp->CRTC[NV_CIO_CR_VBS_INDEX] = vertBlankStart;
 	regp->CRTC[NV_CIO_CR_VBE_INDEX] = vertBlankEnd;
@@ -377,9 +377,9 @@ nv_crtc_mode_set_vga(struct drm_crtc *crtc, struct drm_display_mode *mode)
 
 	/* framebuffer can be larger than crtc scanout area. */
 	regp->CRTC[NV_CIO_CRE_RPC0_INDEX] =
-		XLATE(fb->pitch / 8, 8, NV_CIO_CRE_RPC0_OFFSET_10_8);
+		XLATE(fb->pitches[0] / 8, 8, NV_CIO_CRE_RPC0_OFFSET_10_8);
 	regp->CRTC[NV_CIO_CRE_42] =
-		XLATE(fb->pitch / 8, 11, NV_CIO_CRE_42_OFFSET_11);
+		XLATE(fb->pitches[0] / 8, 11, NV_CIO_CRE_42_OFFSET_11);
 	regp->CRTC[NV_CIO_CRE_RPC1_INDEX] = mode->crtc_hdisplay < 1280 ?
 					    MASK(NV_CIO_CRE_RPC1_LARGE) : 0x00;
 	regp->CRTC[NV_CIO_CRE_LSR_INDEX] = XLATE(horizBlankEnd, 6, NV_CIO_CRE_LSR_HBE_6) |
@@ -835,18 +835,18 @@ nv04_crtc_do_mode_set_base(struct drm_crtc *crtc,
 	NVWriteRAMDAC(dev, nv_crtc->index, NV_PRAMDAC_GENERAL_CONTROL,
 		      regp->ramdac_gen_ctrl);
 
-	regp->CRTC[NV_CIO_CR_OFFSET_INDEX] = drm_fb->pitch >> 3;
+	regp->CRTC[NV_CIO_CR_OFFSET_INDEX] = drm_fb->pitches[0] >> 3;
 	regp->CRTC[NV_CIO_CRE_RPC0_INDEX] =
-		XLATE(drm_fb->pitch >> 3, 8, NV_CIO_CRE_RPC0_OFFSET_10_8);
+		XLATE(drm_fb->pitches[0] >> 3, 8, NV_CIO_CRE_RPC0_OFFSET_10_8);
 	regp->CRTC[NV_CIO_CRE_42] =
-		XLATE(drm_fb->pitch / 8, 11, NV_CIO_CRE_42_OFFSET_11);
+		XLATE(drm_fb->pitches[0] / 8, 11, NV_CIO_CRE_42_OFFSET_11);
 	crtc_wr_cio_state(crtc, regp, NV_CIO_CRE_RPC0_INDEX);
 	crtc_wr_cio_state(crtc, regp, NV_CIO_CR_OFFSET_INDEX);
 	crtc_wr_cio_state(crtc, regp, NV_CIO_CRE_42);
 
 	/* Update the framebuffer location. */
 	regp->fb_start = nv_crtc->fb.offset & ~3;
-	regp->fb_start += (y * drm_fb->pitch) + (x * drm_fb->bits_per_pixel / 8);
+	regp->fb_start += (y * drm_fb->pitches[0]) + (x * drm_fb->bits_per_pixel / 8);
 	nv_set_crtc_base(dev, nv_crtc->index, regp->fb_start);
 
 	/* Update the arbitration parameters. */
diff --git a/drivers/gpu/drm/nouveau/nv04_dac.c b/drivers/gpu/drm/nouveau/nv04_dac.c
index e000455e06d0..8300266ffaea 100644
--- a/drivers/gpu/drm/nouveau/nv04_dac.c
+++ b/drivers/gpu/drm/nouveau/nv04_dac.c
@@ -32,6 +32,7 @@
 #include "nouveau_connector.h"
 #include "nouveau_crtc.h"
 #include "nouveau_hw.h"
+#include "nouveau_gpio.h"
 #include "nvreg.h"
 
 int nv04_dac_output_offset(struct drm_encoder *encoder)
@@ -220,7 +221,6 @@ uint32_t nv17_dac_sample_load(struct drm_encoder *encoder)
 {
 	struct drm_device *dev = encoder->dev;
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_gpio_engine *gpio = &dev_priv->engine.gpio;
 	struct dcb_entry *dcb = nouveau_encoder(encoder)->dcb;
 	uint32_t sample, testval, regoffset = nv04_dac_output_offset(encoder);
 	uint32_t saved_powerctrl_2 = 0, saved_powerctrl_4 = 0, saved_routput,
@@ -252,11 +252,11 @@ uint32_t nv17_dac_sample_load(struct drm_encoder *encoder)
 		nvWriteMC(dev, NV_PBUS_POWERCTRL_4, saved_powerctrl_4 & 0xffffffcf);
 	}
 
-	saved_gpio1 = gpio->get(dev, DCB_GPIO_TVDAC1);
-	saved_gpio0 = gpio->get(dev, DCB_GPIO_TVDAC0);
+	saved_gpio1 = nouveau_gpio_func_get(dev, DCB_GPIO_TVDAC1);
+	saved_gpio0 = nouveau_gpio_func_get(dev, DCB_GPIO_TVDAC0);
 
-	gpio->set(dev, DCB_GPIO_TVDAC1, dcb->type == OUTPUT_TV);
-	gpio->set(dev, DCB_GPIO_TVDAC0, dcb->type == OUTPUT_TV);
+	nouveau_gpio_func_set(dev, DCB_GPIO_TVDAC1, dcb->type == OUTPUT_TV);
+	nouveau_gpio_func_set(dev, DCB_GPIO_TVDAC0, dcb->type == OUTPUT_TV);
 
 	msleep(4);
 
@@ -306,8 +306,8 @@ uint32_t nv17_dac_sample_load(struct drm_encoder *encoder)
 		nvWriteMC(dev, NV_PBUS_POWERCTRL_4, saved_powerctrl_4);
 	nvWriteMC(dev, NV_PBUS_POWERCTRL_2, saved_powerctrl_2);
 
-	gpio->set(dev, DCB_GPIO_TVDAC1, saved_gpio1);
-	gpio->set(dev, DCB_GPIO_TVDAC0, saved_gpio0);
+	nouveau_gpio_func_set(dev, DCB_GPIO_TVDAC1, saved_gpio1);
+	nouveau_gpio_func_set(dev, DCB_GPIO_TVDAC0, saved_gpio0);
 
 	return sample;
 }
diff --git a/drivers/gpu/drm/nouveau/nv04_dfp.c b/drivers/gpu/drm/nouveau/nv04_dfp.c
index 12098bf839c4..2258746016f8 100644
--- a/drivers/gpu/drm/nouveau/nv04_dfp.c
+++ b/drivers/gpu/drm/nouveau/nv04_dfp.c
@@ -289,6 +289,7 @@ static void nv04_dfp_mode_set(struct drm_encoder *encoder,
 	struct nouveau_connector *nv_connector = nouveau_crtc_connector_get(nv_crtc);
 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
 	struct drm_display_mode *output_mode = &nv_encoder->mode;
+	struct drm_connector *connector = &nv_connector->base;
 	uint32_t mode_ratio, panel_ratio;
 
 	NV_DEBUG_KMS(dev, "Output mode on CRTC %d:\n", nv_crtc->index);
@@ -340,10 +341,15 @@ static void nv04_dfp_mode_set(struct drm_encoder *encoder,
 	    output_mode->clock > 165000)
 		regp->fp_control |= (2 << 24);
 	if (nv_encoder->dcb->type == OUTPUT_LVDS) {
-		bool duallink, dummy;
+		bool duallink = false, dummy;
+		if (nv_connector->edid &&
+		    nv_connector->type == DCB_CONNECTOR_LVDS_SPWG) {
+			duallink = (((u8 *)nv_connector->edid)[121] == 2);
+		} else {
+			nouveau_bios_parse_lvds_table(dev, output_mode->clock,
+						      &duallink, &dummy);
+		}
 
-		nouveau_bios_parse_lvds_table(dev, output_mode->clock,
-					      &duallink, &dummy);
 		if (duallink)
 			regp->fp_control |= (8 << 28);
 	} else
@@ -407,7 +413,9 @@ static void nv04_dfp_mode_set(struct drm_encoder *encoder,
 	}
 
 	/* Output property. */
-	if (nv_connector->use_dithering) {
+	if ((nv_connector->dithering_mode == DITHERING_MODE_ON) ||
+	    (nv_connector->dithering_mode == DITHERING_MODE_AUTO &&
+	     encoder->crtc->fb->depth > connector->display_info.bpc * 3)) {
 		if (dev_priv->chipset == 0x11)
 			regp->dither = savep->dither | 0x00010000;
 		else {
diff --git a/drivers/gpu/drm/nouveau/nv04_display.c b/drivers/gpu/drm/nouveau/nv04_display.c
index 6bd8518d7b2e..7047d37e8dab 100644
--- a/drivers/gpu/drm/nouveau/nv04_display.c
+++ b/drivers/gpu/drm/nouveau/nv04_display.c
@@ -243,6 +243,11 @@ nv04_display_init(struct drm_device *dev)
 	return 0;
 }
 
+void
+nv04_display_fini(struct drm_device *dev)
+{
+}
+
 static void
 nv04_vblank_crtc0_isr(struct drm_device *dev)
 {
diff --git a/drivers/gpu/drm/nouveau/nv04_pm.c b/drivers/gpu/drm/nouveau/nv04_pm.c
index 9ae92a87b8cc..6e7589918fa9 100644
--- a/drivers/gpu/drm/nouveau/nv04_pm.c
+++ b/drivers/gpu/drm/nouveau/nv04_pm.c
@@ -27,68 +27,111 @@
 #include "nouveau_hw.h"
 #include "nouveau_pm.h"
 
-struct nv04_pm_state {
+int
+nv04_pm_clocks_get(struct drm_device *dev, struct nouveau_pm_level *perflvl)
+{
+	int ret;
+
+	ret = nouveau_hw_get_clock(dev, PLL_CORE);
+	if (ret < 0)
+		return ret;
+	perflvl->core = ret;
+
+	ret = nouveau_hw_get_clock(dev, PLL_MEMORY);
+	if (ret < 0)
+		return ret;
+	perflvl->memory = ret;
+
+	return 0;
+}
+
+struct nv04_pm_clock {
 	struct pll_lims pll;
 	struct nouveau_pll_vals calc;
 };
 
-int
-nv04_pm_clock_get(struct drm_device *dev, u32 id)
+struct nv04_pm_state {
+	struct nv04_pm_clock core;
+	struct nv04_pm_clock memory;
+};
+
+static int
+calc_pll(struct drm_device *dev, u32 id, int khz, struct nv04_pm_clock *clk)
 {
-	return nouveau_hw_get_clock(dev, id);
+	int ret;
+
+	ret = get_pll_limits(dev, id, &clk->pll);
+	if (ret)
+		return ret;
+
+	ret = nouveau_calc_pll_mnp(dev, &clk->pll, khz, &clk->calc);
+	if (!ret)
+		return -EINVAL;
+
+	return 0;
 }
 
 void *
-nv04_pm_clock_pre(struct drm_device *dev, struct nouveau_pm_level *perflvl,
-		  u32 id, int khz)
+nv04_pm_clocks_pre(struct drm_device *dev, struct nouveau_pm_level *perflvl)
 {
-	struct nv04_pm_state *state;
+	struct nv04_pm_state *info;
 	int ret;
 
-	state = kzalloc(sizeof(*state), GFP_KERNEL);
-	if (!state)
+	info = kzalloc(sizeof(*info), GFP_KERNEL);
+	if (!info)
 		return ERR_PTR(-ENOMEM);
 
-	ret = get_pll_limits(dev, id, &state->pll);
-	if (ret) {
-		kfree(state);
-		return (ret == -ENOENT) ? NULL : ERR_PTR(ret);
-	}
+	ret = calc_pll(dev, PLL_CORE, perflvl->core, &info->core);
+	if (ret)
+		goto error;
 
-	ret = nouveau_calc_pll_mnp(dev, &state->pll, khz, &state->calc);
-	if (!ret) {
-		kfree(state);
-		return ERR_PTR(-EINVAL);
+	if (perflvl->memory) {
+		ret = calc_pll(dev, PLL_MEMORY, perflvl->memory, &info->memory);
+		if (ret)
+			goto error;
 	}
 
-	return state;
+	return info;
+error:
+	kfree(info);
+	return ERR_PTR(ret);
 }
 
-void
-nv04_pm_clock_set(struct drm_device *dev, void *pre_state)
+static void
+prog_pll(struct drm_device *dev, struct nv04_pm_clock *clk)
 {
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_timer_engine *ptimer = &dev_priv->engine.timer;
-	struct nv04_pm_state *state = pre_state;
-	u32 reg = state->pll.reg;
+	u32 reg = clk->pll.reg;
 
 	/* thank the insane nouveau_hw_setpll() interface for this */
 	if (dev_priv->card_type >= NV_40)
 		reg += 4;
 
-	nouveau_hw_setpll(dev, reg, &state->calc);
+	nouveau_hw_setpll(dev, reg, &clk->calc);
+}
+
+int
+nv04_pm_clocks_set(struct drm_device *dev, void *pre_state)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nouveau_timer_engine *ptimer = &dev_priv->engine.timer;
+	struct nv04_pm_state *state = pre_state;
+
+	prog_pll(dev, &state->core);
 
-	if (dev_priv->card_type < NV_30 && reg == NV_PRAMDAC_MPLL_COEFF) {
-		if (dev_priv->card_type == NV_20)
-			nv_mask(dev, 0x1002c4, 0, 1 << 20);
+	if (state->memory.pll.reg) {
+		prog_pll(dev, &state->memory);
+		if (dev_priv->card_type < NV_30) {
+			if (dev_priv->card_type == NV_20)
+				nv_mask(dev, 0x1002c4, 0, 1 << 20);
 
-		/* Reset the DLLs */
-		nv_mask(dev, 0x1002c0, 0, 1 << 8);
+			/* Reset the DLLs */
+			nv_mask(dev, 0x1002c0, 0, 1 << 8);
+		}
 	}
 
-	if (reg == NV_PRAMDAC_NVPLL_COEFF)
-		ptimer->init(dev);
+	ptimer->init(dev);
 
 	kfree(state);
+	return 0;
 }
-
diff --git a/drivers/gpu/drm/nouveau/nv04_timer.c b/drivers/gpu/drm/nouveau/nv04_timer.c
index 263301b809dd..55c945290e52 100644
--- a/drivers/gpu/drm/nouveau/nv04_timer.c
+++ b/drivers/gpu/drm/nouveau/nv04_timer.c
@@ -2,6 +2,7 @@
 #include "drm.h"
 #include "nouveau_drv.h"
 #include "nouveau_drm.h"
+#include "nouveau_hw.h"
 
 int
 nv04_timer_init(struct drm_device *dev)
@@ -17,7 +18,7 @@ nv04_timer_init(struct drm_device *dev)
 
 	/* determine base clock for timer source */
 	if (dev_priv->chipset < 0x40) {
-		n = dev_priv->engine.pm.clock_get(dev, PLL_CORE);
+		n = nouveau_hw_get_clock(dev, PLL_CORE);
 	} else
 	if (dev_priv->chipset == 0x40) {
 		/*XXX: figure this out */
diff --git a/drivers/gpu/drm/nouveau/nv10_gpio.c b/drivers/gpu/drm/nouveau/nv10_gpio.c
index 007fc29e2f86..550ad3fcf0af 100644
--- a/drivers/gpu/drm/nouveau/nv10_gpio.c
+++ b/drivers/gpu/drm/nouveau/nv10_gpio.c
@@ -27,66 +27,97 @@
 #include "drmP.h"
 #include "nouveau_drv.h"
 #include "nouveau_hw.h"
+#include "nouveau_gpio.h"
 
-static bool
-get_gpio_location(struct dcb_gpio_entry *ent, uint32_t *reg, uint32_t *shift,
-		  uint32_t *mask)
+int
+nv10_gpio_sense(struct drm_device *dev, int line)
 {
-	if (ent->line < 2) {
-		*reg = NV_PCRTC_GPIO;
-		*shift = ent->line * 16;
-		*mask = 0x11;
-
-	} else if (ent->line < 10) {
-		*reg = NV_PCRTC_GPIO_EXT;
-		*shift = (ent->line - 2) * 4;
-		*mask = 0x3;
+	if (line < 2) {
+		line = line * 16;
+		line = NVReadCRTC(dev, 0, NV_PCRTC_GPIO) >> line;
+		return !!(line & 0x0100);
+	} else
+	if (line < 10) {
+		line = (line - 2) * 4;
+		line = NVReadCRTC(dev, 0, NV_PCRTC_GPIO_EXT) >> line;
+		return !!(line & 0x04);
+	} else
+	if (line < 14) {
+		line = (line - 10) * 4;
+		line = NVReadCRTC(dev, 0, NV_PCRTC_850) >> line;
+		return !!(line & 0x04);
+	}
 
-	} else if (ent->line < 14) {
-		*reg = NV_PCRTC_850;
-		*shift = (ent->line - 10) * 4;
-		*mask = 0x3;
+	return -EINVAL;
+}
 
+int
+nv10_gpio_drive(struct drm_device *dev, int line, int dir, int out)
+{
+	u32 reg, mask, data;
+
+	if (line < 2) {
+		line = line * 16;
+		reg  = NV_PCRTC_GPIO;
+		mask = 0x00000011;
+		data = (dir << 4) | out;
+	} else
+	if (line < 10) {
+		line = (line - 2) * 4;
+		reg  = NV_PCRTC_GPIO_EXT;
+		mask = 0x00000003 << ((line - 2) * 4);
+		data = (dir << 1) | out;
+	} else
+	if (line < 14) {
+		line = (line - 10) * 4;
+		reg  = NV_PCRTC_850;
+		mask = 0x00000003;
+		data = (dir << 1) | out;
 	} else {
-		return false;
+		return -EINVAL;
 	}
 
-	return true;
+	mask = NVReadCRTC(dev, 0, reg) & ~(mask << line);
+	NVWriteCRTC(dev, 0, reg, mask | (data << line));
+	return 0;
 }
 
-int
-nv10_gpio_get(struct drm_device *dev, enum dcb_gpio_tag tag)
+void
+nv10_gpio_irq_enable(struct drm_device *dev, int line, bool on)
 {
-	struct dcb_gpio_entry *ent = nouveau_bios_gpio_entry(dev, tag);
-	uint32_t reg, shift, mask, value;
+	u32 mask = 0x00010001 << line;
 
-	if (!ent)
-		return -ENODEV;
+	nv_wr32(dev, 0x001104, mask);
+	nv_mask(dev, 0x001144, mask, on ? mask : 0);
+}
 
-	if (!get_gpio_location(ent, &reg, &shift, &mask))
-		return -ENODEV;
+static void
+nv10_gpio_isr(struct drm_device *dev)
+{
+	u32 intr = nv_rd32(dev, 0x1104);
+	u32 hi = (intr & 0x0000ffff) >> 0;
+	u32 lo = (intr & 0xffff0000) >> 16;
 
-	value = NVReadCRTC(dev, 0, reg) >> shift;
+	nouveau_gpio_isr(dev, 0, hi | lo);
 
-	return (ent->invert ? 1 : 0) ^ (value & 1);
+	nv_wr32(dev, 0x001104, intr);
 }
 
 int
-nv10_gpio_set(struct drm_device *dev, enum dcb_gpio_tag tag, int state)
+nv10_gpio_init(struct drm_device *dev)
 {
-	struct dcb_gpio_entry *ent = nouveau_bios_gpio_entry(dev, tag);
-	uint32_t reg, shift, mask, value;
-
-	if (!ent)
-		return -ENODEV;
-
-	if (!get_gpio_location(ent, &reg, &shift, &mask))
-		return -ENODEV;
-
-	value = ((ent->invert ? 1 : 0) ^ (state ? 1 : 0)) << shift;
-	mask = ~(mask << shift);
-
-	NVWriteCRTC(dev, 0, reg, value | (NVReadCRTC(dev, 0, reg) & mask));
-
+	nv_wr32(dev, 0x001140, 0x00000000);
+	nv_wr32(dev, 0x001100, 0xffffffff);
+	nv_wr32(dev, 0x001144, 0x00000000);
+	nv_wr32(dev, 0x001104, 0xffffffff);
+	nouveau_irq_register(dev, 28, nv10_gpio_isr); /* PBUS */
 	return 0;
 }
+
+void
+nv10_gpio_fini(struct drm_device *dev)
+{
+	nv_wr32(dev, 0x001140, 0x00000000);
+	nv_wr32(dev, 0x001144, 0x00000000);
+	nouveau_irq_unregister(dev, 28);
+}
diff --git a/drivers/gpu/drm/nouveau/nv17_tv.c b/drivers/gpu/drm/nouveau/nv17_tv.c
index 3900cebba560..696d7e7dc2a0 100644
--- a/drivers/gpu/drm/nouveau/nv17_tv.c
+++ b/drivers/gpu/drm/nouveau/nv17_tv.c
@@ -30,6 +30,7 @@
 #include "nouveau_encoder.h"
 #include "nouveau_connector.h"
 #include "nouveau_crtc.h"
+#include "nouveau_gpio.h"
 #include "nouveau_hw.h"
 #include "nv17_tv.h"
 
@@ -37,7 +38,6 @@ static uint32_t nv42_tv_sample_load(struct drm_encoder *encoder)
 {
 	struct drm_device *dev = encoder->dev;
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_gpio_engine *gpio = &dev_priv->engine.gpio;
 	uint32_t testval, regoffset = nv04_dac_output_offset(encoder);
 	uint32_t gpio0, gpio1, fp_htotal, fp_hsync_start, fp_hsync_end,
 		fp_control, test_ctrl, dacclk, ctv_14, ctv_1c, ctv_6c;
@@ -53,8 +53,8 @@ static uint32_t nv42_tv_sample_load(struct drm_encoder *encoder)
 	head = (dacclk & 0x100) >> 8;
 
 	/* Save the previous state. */
-	gpio1 = gpio->get(dev, DCB_GPIO_TVDAC1);
-	gpio0 = gpio->get(dev, DCB_GPIO_TVDAC0);
+	gpio1 = nouveau_gpio_func_get(dev, DCB_GPIO_TVDAC1);
+	gpio0 = nouveau_gpio_func_get(dev, DCB_GPIO_TVDAC0);
 	fp_htotal = NVReadRAMDAC(dev, head, NV_PRAMDAC_FP_HTOTAL);
 	fp_hsync_start = NVReadRAMDAC(dev, head, NV_PRAMDAC_FP_HSYNC_START);
 	fp_hsync_end = NVReadRAMDAC(dev, head, NV_PRAMDAC_FP_HSYNC_END);
@@ -65,8 +65,8 @@ static uint32_t nv42_tv_sample_load(struct drm_encoder *encoder)
 	ctv_6c = NVReadRAMDAC(dev, head, 0x680c6c);
 
 	/* Prepare the DAC for load detection.  */
-	gpio->set(dev, DCB_GPIO_TVDAC1, true);
-	gpio->set(dev, DCB_GPIO_TVDAC0, true);
+	nouveau_gpio_func_set(dev, DCB_GPIO_TVDAC1, true);
+	nouveau_gpio_func_set(dev, DCB_GPIO_TVDAC0, true);
 
 	NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_HTOTAL, 1343);
 	NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_HSYNC_START, 1047);
@@ -111,8 +111,8 @@ static uint32_t nv42_tv_sample_load(struct drm_encoder *encoder)
 	NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_HSYNC_END, fp_hsync_end);
 	NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_HSYNC_START, fp_hsync_start);
 	NVWriteRAMDAC(dev, head, NV_PRAMDAC_FP_HTOTAL, fp_htotal);
-	gpio->set(dev, DCB_GPIO_TVDAC1, gpio1);
-	gpio->set(dev, DCB_GPIO_TVDAC0, gpio0);
+	nouveau_gpio_func_set(dev, DCB_GPIO_TVDAC1, gpio1);
+	nouveau_gpio_func_set(dev, DCB_GPIO_TVDAC0, gpio0);
 
 	return sample;
 }
@@ -357,8 +357,6 @@ static bool nv17_tv_mode_fixup(struct drm_encoder *encoder,
 static void  nv17_tv_dpms(struct drm_encoder *encoder, int mode)
 {
 	struct drm_device *dev = encoder->dev;
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_gpio_engine *gpio = &dev_priv->engine.gpio;
 	struct nv17_tv_state *regs = &to_tv_enc(encoder)->state;
 	struct nv17_tv_norm_params *tv_norm = get_tv_norm(encoder);
 
@@ -383,8 +381,8 @@ static void  nv17_tv_dpms(struct drm_encoder *encoder, int mode)
 
 	nv_load_ptv(dev, regs, 200);
 
-	gpio->set(dev, DCB_GPIO_TVDAC1, mode == DRM_MODE_DPMS_ON);
-	gpio->set(dev, DCB_GPIO_TVDAC0, mode == DRM_MODE_DPMS_ON);
+	nouveau_gpio_func_set(dev, DCB_GPIO_TVDAC1, mode == DRM_MODE_DPMS_ON);
+	nouveau_gpio_func_set(dev, DCB_GPIO_TVDAC0, mode == DRM_MODE_DPMS_ON);
 
 	nv04_dac_update_dacclk(encoder, mode == DRM_MODE_DPMS_ON);
 }
diff --git a/drivers/gpu/drm/nouveau/nv40_pm.c b/drivers/gpu/drm/nouveau/nv40_pm.c
index e676b0d53478..c7615381c5d9 100644
--- a/drivers/gpu/drm/nouveau/nv40_pm.c
+++ b/drivers/gpu/drm/nouveau/nv40_pm.c
@@ -222,7 +222,7 @@ nv40_pm_gr_idle(void *data)
 	return true;
 }
 
-void
+int
 nv40_pm_clocks_set(struct drm_device *dev, void *pre_state)
 {
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
@@ -231,7 +231,7 @@ nv40_pm_clocks_set(struct drm_device *dev, void *pre_state)
 	struct bit_entry M;
 	u32 crtc_mask = 0;
 	u8 sr1[2];
-	int i;
+	int i, ret = -EAGAIN;
 
 	/* determine which CRTCs are active, fetch VGA_SR1 for each */
 	for (i = 0; i < 2; i++) {
@@ -263,6 +263,8 @@ nv40_pm_clocks_set(struct drm_device *dev, void *pre_state)
 	if (!nv_wait_cb(dev, nv40_pm_gr_idle, dev))
 		goto resume;
 
+	ret = 0;
+
 	/* set engine clocks */
 	nv_mask(dev, 0x00c040, 0x00000333, 0x00000000);
 	nv_wr32(dev, 0x004004, info->npll_coef);
@@ -345,4 +347,48 @@ resume:
 	spin_unlock_irqrestore(&dev_priv->context_switch_lock, flags);
 
 	kfree(info);
+	return ret;
+}
+
+int
+nv40_pm_pwm_get(struct drm_device *dev, int line, u32 *divs, u32 *duty)
+{
+	if (line == 2) {
+		u32 reg = nv_rd32(dev, 0x0010f0);
+		if (reg & 0x80000000) {
+			*duty = (reg & 0x7fff0000) >> 16;
+			*divs = (reg & 0x00007fff);
+			return 0;
+		}
+	} else
+	if (line == 9) {
+		u32 reg = nv_rd32(dev, 0x0015f4);
+		if (reg & 0x80000000) {
+			*divs = nv_rd32(dev, 0x0015f8);
+			*duty = (reg & 0x7fffffff);
+			return 0;
+		}
+	} else {
+		NV_ERROR(dev, "unknown pwm ctrl for gpio %d\n", line);
+		return -ENODEV;
+	}
+
+	return -EINVAL;
+}
+
+int
+nv40_pm_pwm_set(struct drm_device *dev, int line, u32 divs, u32 duty)
+{
+	if (line == 2) {
+		nv_wr32(dev, 0x0010f0, 0x80000000 | (duty << 16) | divs);
+	} else
+	if (line == 9) {
+		nv_wr32(dev, 0x0015f8, divs);
+		nv_wr32(dev, 0x0015f4, duty | 0x80000000);
+	} else {
+		NV_ERROR(dev, "unknown pwm ctrl for gpio %d\n", line);
+		return -ENODEV;
+	}
+
+	return 0;
 }
diff --git a/drivers/gpu/drm/nouveau/nv50_crtc.c b/drivers/gpu/drm/nouveau/nv50_crtc.c
index 882080e0b4f5..8f6c2ace3adf 100644
--- a/drivers/gpu/drm/nouveau/nv50_crtc.c
+++ b/drivers/gpu/drm/nouveau/nv50_crtc.c
@@ -132,33 +132,42 @@ nv50_crtc_blank(struct nouveau_crtc *nv_crtc, bool blanked)
 }
 
 static int
-nv50_crtc_set_dither(struct nouveau_crtc *nv_crtc, bool on, bool update)
+nv50_crtc_set_dither(struct nouveau_crtc *nv_crtc, bool update)
 {
-	struct drm_device *dev = nv_crtc->base.dev;
-	struct nouveau_channel *evo = nv50_display(dev)->master;
-	int ret;
-
-	NV_DEBUG_KMS(dev, "\n");
+	struct nouveau_channel *evo = nv50_display(nv_crtc->base.dev)->master;
+	struct nouveau_connector *nv_connector;
+	struct drm_connector *connector;
+	int head = nv_crtc->index, ret;
+	u32 mode = 0x00;
 
-	ret = RING_SPACE(evo, 2 + (update ? 2 : 0));
-	if (ret) {
-		NV_ERROR(dev, "no space while setting dither\n");
-		return ret;
+	nv_connector = nouveau_crtc_connector_get(nv_crtc);
+	connector = &nv_connector->base;
+	if (nv_connector->dithering_mode == DITHERING_MODE_AUTO) {
+		if (nv_crtc->base.fb->depth > connector->display_info.bpc * 3)
+			mode = DITHERING_MODE_DYNAMIC2X2;
+	} else {
+		mode = nv_connector->dithering_mode;
 	}
 
-	BEGIN_RING(evo, 0, NV50_EVO_CRTC(nv_crtc->index, DITHER_CTRL), 1);
-	if (on)
-		OUT_RING(evo, NV50_EVO_CRTC_DITHER_CTRL_ON);
-	else
-		OUT_RING(evo, NV50_EVO_CRTC_DITHER_CTRL_OFF);
+	if (nv_connector->dithering_depth == DITHERING_DEPTH_AUTO) {
+		if (connector->display_info.bpc >= 8)
+			mode |= DITHERING_DEPTH_8BPC;
+	} else {
+		mode |= nv_connector->dithering_depth;
+	}
 
-	if (update) {
-		BEGIN_RING(evo, 0, NV50_EVO_UPDATE, 1);
-		OUT_RING(evo, 0);
-		FIRE_RING(evo);
+	ret = RING_SPACE(evo, 2 + (update ? 2 : 0));
+	if (ret == 0) {
+		BEGIN_RING(evo, 0, NV50_EVO_CRTC(head, DITHER_CTRL), 1);
+		OUT_RING  (evo, mode);
+		if (update) {
+			BEGIN_RING(evo, 0, NV50_EVO_UPDATE, 1);
+			OUT_RING  (evo, 0);
+			FIRE_RING (evo);
+		}
 	}
 
-	return 0;
+	return ret;
 }
 
 struct nouveau_connector *
@@ -180,80 +189,103 @@ nouveau_crtc_connector_get(struct nouveau_crtc *nv_crtc)
 }
 
 static int
-nv50_crtc_set_scale(struct nouveau_crtc *nv_crtc, int scaling_mode, bool update)
+nv50_crtc_set_scale(struct nouveau_crtc *nv_crtc, bool update)
 {
-	struct nouveau_connector *nv_connector =
-		nouveau_crtc_connector_get(nv_crtc);
-	struct drm_device *dev = nv_crtc->base.dev;
+	struct nouveau_connector *nv_connector;
+	struct drm_crtc *crtc = &nv_crtc->base;
+	struct drm_device *dev = crtc->dev;
 	struct nouveau_channel *evo = nv50_display(dev)->master;
-	struct drm_display_mode *native_mode = NULL;
-	struct drm_display_mode *mode = &nv_crtc->base.mode;
-	uint32_t outX, outY, horiz, vert;
-	int ret;
+	struct drm_display_mode *umode = &crtc->mode;
+	struct drm_display_mode *omode;
+	int scaling_mode, ret;
+	u32 ctrl = 0, oX, oY;
 
 	NV_DEBUG_KMS(dev, "\n");
 
-	switch (scaling_mode) {
-	case DRM_MODE_SCALE_NONE:
-		break;
-	default:
-		if (!nv_connector || !nv_connector->native_mode) {
-			NV_ERROR(dev, "No native mode, forcing panel scaling\n");
-			scaling_mode = DRM_MODE_SCALE_NONE;
+	nv_connector = nouveau_crtc_connector_get(nv_crtc);
+	if (!nv_connector || !nv_connector->native_mode) {
+		NV_ERROR(dev, "no native mode, forcing panel scaling\n");
+		scaling_mode = DRM_MODE_SCALE_NONE;
+	} else {
+		scaling_mode = nv_connector->scaling_mode;
+	}
+
+	/* start off at the resolution we programmed the crtc for, this
+	 * effectively handles NONE/FULL scaling
+	 */
+	if (scaling_mode != DRM_MODE_SCALE_NONE)
+		omode = nv_connector->native_mode;
+	else
+		omode = umode;
+
+	oX = omode->hdisplay;
+	oY = omode->vdisplay;
+	if (omode->flags & DRM_MODE_FLAG_DBLSCAN)
+		oY *= 2;
+
+	/* add overscan compensation if necessary, will keep the aspect
+	 * ratio the same as the backend mode unless overridden by the
+	 * user setting both hborder and vborder properties.
+	 */
+	if (nv_connector && ( nv_connector->underscan == UNDERSCAN_ON ||
+			     (nv_connector->underscan == UNDERSCAN_AUTO &&
+			      nv_connector->edid &&
+			      drm_detect_hdmi_monitor(nv_connector->edid)))) {
+		u32 bX = nv_connector->underscan_hborder;
+		u32 bY = nv_connector->underscan_vborder;
+		u32 aspect = (oY << 19) / oX;
+
+		if (bX) {
+			oX -= (bX * 2);
+			if (bY) oY -= (bY * 2);
+			else    oY  = ((oX * aspect) + (aspect / 2)) >> 19;
 		} else {
-			native_mode = nv_connector->native_mode;
+			oX -= (oX >> 4) + 32;
+			if (bY) oY -= (bY * 2);
+			else    oY  = ((oX * aspect) + (aspect / 2)) >> 19;
 		}
-		break;
 	}
 
+	/* handle CENTER/ASPECT scaling, taking into account the areas
+	 * removed already for overscan compensation
+	 */
 	switch (scaling_mode) {
+	case DRM_MODE_SCALE_CENTER:
+		oX = min((u32)umode->hdisplay, oX);
+		oY = min((u32)umode->vdisplay, oY);
+		/* fall-through */
 	case DRM_MODE_SCALE_ASPECT:
-		horiz = (native_mode->hdisplay << 19) / mode->hdisplay;
-		vert = (native_mode->vdisplay << 19) / mode->vdisplay;
-
-		if (vert > horiz) {
-			outX = (mode->hdisplay * horiz) >> 19;
-			outY = (mode->vdisplay * horiz) >> 19;
+		if (oY < oX) {
+			u32 aspect = (umode->hdisplay << 19) / umode->vdisplay;
+			oX = ((oY * aspect) + (aspect / 2)) >> 19;
 		} else {
-			outX = (mode->hdisplay * vert) >> 19;
-			outY = (mode->vdisplay * vert) >> 19;
+			u32 aspect = (umode->vdisplay << 19) / umode->hdisplay;
+			oY = ((oX * aspect) + (aspect / 2)) >> 19;
 		}
 		break;
-	case DRM_MODE_SCALE_FULLSCREEN:
-		outX = native_mode->hdisplay;
-		outY = native_mode->vdisplay;
-		break;
-	case DRM_MODE_SCALE_CENTER:
-	case DRM_MODE_SCALE_NONE:
 	default:
-		outX = mode->hdisplay;
-		outY = mode->vdisplay;
 		break;
 	}
 
-	ret = RING_SPACE(evo, update ? 7 : 5);
+	if (umode->hdisplay != oX || umode->vdisplay != oY ||
+	    umode->flags & DRM_MODE_FLAG_INTERLACE ||
+	    umode->flags & DRM_MODE_FLAG_DBLSCAN)
+		ctrl |= NV50_EVO_CRTC_SCALE_CTRL_ACTIVE;
+
+	ret = RING_SPACE(evo, 5);
 	if (ret)
 		return ret;
 
-	/* Got a better name for SCALER_ACTIVE? */
-	/* One day i've got to really figure out why this is needed. */
 	BEGIN_RING(evo, 0, NV50_EVO_CRTC(nv_crtc->index, SCALE_CTRL), 1);
-	if ((mode->flags & DRM_MODE_FLAG_DBLSCAN) ||
-	    (mode->flags & DRM_MODE_FLAG_INTERLACE) ||
-	    mode->hdisplay != outX || mode->vdisplay != outY) {
-		OUT_RING(evo, NV50_EVO_CRTC_SCALE_CTRL_ACTIVE);
-	} else {
-		OUT_RING(evo, NV50_EVO_CRTC_SCALE_CTRL_INACTIVE);
-	}
-
+	OUT_RING  (evo, ctrl);
 	BEGIN_RING(evo, 0, NV50_EVO_CRTC(nv_crtc->index, SCALE_RES1), 2);
-	OUT_RING(evo, outY << 16 | outX);
-	OUT_RING(evo, outY << 16 | outX);
+	OUT_RING  (evo, oY << 16 | oX);
+	OUT_RING  (evo, oY << 16 | oX);
 
 	if (update) {
-		BEGIN_RING(evo, 0, NV50_EVO_UPDATE, 1);
-		OUT_RING(evo, 0);
-		FIRE_RING(evo);
+		nv50_display_flip_stop(crtc);
+		nv50_display_sync(dev);
+		nv50_display_flip_next(crtc, crtc->fb, NULL);
 	}
 
 	return 0;
@@ -333,7 +365,6 @@ nv50_crtc_destroy(struct drm_crtc *crtc)
 	nouveau_bo_ref(NULL, &nv_crtc->lut.nvbo);
 	nouveau_bo_unmap(nv_crtc->cursor.nvbo);
 	nouveau_bo_ref(NULL, &nv_crtc->cursor.nvbo);
-	kfree(nv_crtc->mode);
 	kfree(nv_crtc);
 }
 
@@ -441,39 +472,6 @@ nv50_crtc_dpms(struct drm_crtc *crtc, int mode)
 {
 }
 
-static int
-nv50_crtc_wait_complete(struct drm_crtc *crtc)
-{
-	struct drm_device *dev = crtc->dev;
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_timer_engine *ptimer = &dev_priv->engine.timer;
-	struct nv50_display *disp = nv50_display(dev);
-	struct nouveau_channel *evo = disp->master;
-	u64 start;
-	int ret;
-
-	ret = RING_SPACE(evo, 6);
-	if (ret)
-		return ret;
-	BEGIN_RING(evo, 0, 0x0084, 1);
-	OUT_RING  (evo, 0x80000000);
-	BEGIN_RING(evo, 0, 0x0080, 1);
-	OUT_RING  (evo, 0);
-	BEGIN_RING(evo, 0, 0x0084, 1);
-	OUT_RING  (evo, 0x00000000);
-
-	nv_wo32(disp->ntfy, 0x000, 0x00000000);
-	FIRE_RING (evo);
-
-	start = ptimer->read(dev);
-	do {
-		if (nv_ro32(disp->ntfy, 0x000))
-			return 0;
-	} while (ptimer->read(dev) - start < 2000000000ULL);
-
-	return -EBUSY;
-}
-
 static void
 nv50_crtc_prepare(struct drm_crtc *crtc)
 {
@@ -497,7 +495,7 @@ nv50_crtc_commit(struct drm_crtc *crtc)
 
 	nv50_crtc_blank(nv_crtc, false);
 	drm_vblank_post_modeset(dev, nv_crtc->index);
-	nv50_crtc_wait_complete(crtc);
+	nv50_display_sync(dev);
 	nv50_display_flip_next(crtc, crtc->fb, NULL);
 }
 
@@ -593,90 +591,76 @@ nv50_crtc_do_mode_set_base(struct drm_crtc *crtc,
 }
 
 static int
-nv50_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *mode,
-		   struct drm_display_mode *adjusted_mode, int x, int y,
+nv50_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *umode,
+		   struct drm_display_mode *mode, int x, int y,
 		   struct drm_framebuffer *old_fb)
 {
 	struct drm_device *dev = crtc->dev;
 	struct nouveau_channel *evo = nv50_display(dev)->master;
 	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
-	struct nouveau_connector *nv_connector = NULL;
-	uint32_t hsync_dur,  vsync_dur, hsync_start_to_end, vsync_start_to_end;
-	uint32_t hunk1, vunk1, vunk2a, vunk2b;
+	u32 head = nv_crtc->index * 0x400;
+	u32 ilace = (mode->flags & DRM_MODE_FLAG_INTERLACE) ? 2 : 1;
+	u32 vscan = (mode->flags & DRM_MODE_FLAG_DBLSCAN) ? 2 : 1;
+	u32 hactive, hsynce, hbackp, hfrontp, hblanke, hblanks;
+	u32 vactive, vsynce, vbackp, vfrontp, vblanke, vblanks;
+	u32 vblan2e = 0, vblan2s = 1;
 	int ret;
 
-	/* Find the connector attached to this CRTC */
-	nv_connector = nouveau_crtc_connector_get(nv_crtc);
-
-	*nv_crtc->mode = *adjusted_mode;
-
-	NV_DEBUG_KMS(dev, "index %d\n", nv_crtc->index);
+	/* hw timing description looks like this:
+	 *
+	 * <sync> <back porch> <---------display---------> <front porch>
+	 * ______
+	 *       |____________|---------------------------|____________|
+	 *
+	 *       ^ synce      ^ blanke                    ^ blanks     ^ active
+	 *
+	 * interlaced modes also have 2 additional values pointing at the end
+	 * and start of the next field's blanking period.
+	 */
 
-	hsync_dur = adjusted_mode->hsync_end - adjusted_mode->hsync_start;
-	vsync_dur = adjusted_mode->vsync_end - adjusted_mode->vsync_start;
-	hsync_start_to_end = adjusted_mode->htotal - adjusted_mode->hsync_start;
-	vsync_start_to_end = adjusted_mode->vtotal - adjusted_mode->vsync_start;
-	/* I can't give this a proper name, anyone else can? */
-	hunk1 = adjusted_mode->htotal -
-		adjusted_mode->hsync_start + adjusted_mode->hdisplay;
-	vunk1 = adjusted_mode->vtotal -
-		adjusted_mode->vsync_start + adjusted_mode->vdisplay;
-	/* Another strange value, this time only for interlaced adjusted_modes. */
-	vunk2a = 2 * adjusted_mode->vtotal -
-		 adjusted_mode->vsync_start + adjusted_mode->vdisplay;
-	vunk2b = adjusted_mode->vtotal -
-		 adjusted_mode->vsync_start + adjusted_mode->vtotal;
-
-	if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) {
-		vsync_dur /= 2;
-		vsync_start_to_end  /= 2;
-		vunk1 /= 2;
-		vunk2a /= 2;
-		vunk2b /= 2;
-		/* magic */
-		if (adjusted_mode->flags & DRM_MODE_FLAG_DBLSCAN) {
-			vsync_start_to_end -= 1;
-			vunk1 -= 1;
-			vunk2a -= 1;
-			vunk2b -= 1;
-		}
+	hactive = mode->htotal;
+	hsynce  = mode->hsync_end - mode->hsync_start - 1;
+	hbackp  = mode->htotal - mode->hsync_end;
+	hblanke = hsynce + hbackp;
+	hfrontp = mode->hsync_start - mode->hdisplay;
+	hblanks = mode->htotal - hfrontp - 1;
+
+	vactive = mode->vtotal * vscan / ilace;
+	vsynce  = ((mode->vsync_end - mode->vsync_start) * vscan / ilace) - 1;
+	vbackp  = (mode->vtotal - mode->vsync_end) * vscan / ilace;
+	vblanke = vsynce + vbackp;
+	vfrontp = (mode->vsync_start - mode->vdisplay) * vscan / ilace;
+	vblanks = vactive - vfrontp - 1;
+	if (mode->flags & DRM_MODE_FLAG_INTERLACE) {
+		vblan2e = vactive + vsynce + vbackp;
+		vblan2s = vblan2e + (mode->vdisplay * vscan / ilace);
+		vactive = (vactive * 2) + 1;
 	}
 
-	ret = RING_SPACE(evo, 17);
-	if (ret)
-		return ret;
-
-	BEGIN_RING(evo, 0, NV50_EVO_CRTC(nv_crtc->index, CLOCK), 2);
-	OUT_RING(evo, adjusted_mode->clock | 0x800000);
-	OUT_RING(evo, (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) ? 2 : 0);
-
-	BEGIN_RING(evo, 0, NV50_EVO_CRTC(nv_crtc->index, DISPLAY_START), 5);
-	OUT_RING(evo, 0);
-	OUT_RING(evo, (adjusted_mode->vtotal << 16) | adjusted_mode->htotal);
-	OUT_RING(evo, (vsync_dur - 1) << 16 | (hsync_dur - 1));
-	OUT_RING(evo, (vsync_start_to_end - 1) << 16 |
-			(hsync_start_to_end - 1));
-	OUT_RING(evo, (vunk1 - 1) << 16 | (hunk1 - 1));
-
-	if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) {
-		BEGIN_RING(evo, 0, NV50_EVO_CRTC(nv_crtc->index, UNK0824), 1);
-		OUT_RING(evo, (vunk2b - 1) << 16 | (vunk2a - 1));
-	} else {
-		OUT_RING(evo, 0);
-		OUT_RING(evo, 0);
+	ret = RING_SPACE(evo, 18);
+	if (ret == 0) {
+		BEGIN_RING(evo, 0, 0x0804 + head, 2);
+		OUT_RING  (evo, 0x00800000 | mode->clock);
+		OUT_RING  (evo, (ilace == 2) ? 2 : 0);
+		BEGIN_RING(evo, 0, 0x0810 + head, 6);
+		OUT_RING  (evo, 0x00000000); /* border colour */
+		OUT_RING  (evo, (vactive << 16) | hactive);
+		OUT_RING  (evo, ( vsynce << 16) | hsynce);
+		OUT_RING  (evo, (vblanke << 16) | hblanke);
+		OUT_RING  (evo, (vblanks << 16) | hblanks);
+		OUT_RING  (evo, (vblan2e << 16) | vblan2s);
+		BEGIN_RING(evo, 0, 0x082c + head, 1);
+		OUT_RING  (evo, 0x00000000);
+		BEGIN_RING(evo, 0, 0x0900 + head, 1);
+		OUT_RING  (evo, 0x00000311); /* makes sync channel work */
+		BEGIN_RING(evo, 0, 0x08c8 + head, 1);
+		OUT_RING  (evo, (umode->vdisplay << 16) | umode->hdisplay);
+		BEGIN_RING(evo, 0, 0x08d4 + head, 1);
+		OUT_RING  (evo, 0x00000000); /* screen position */
 	}
 
-	BEGIN_RING(evo, 0, NV50_EVO_CRTC(nv_crtc->index, UNK082C), 1);
-	OUT_RING(evo, 0);
-
-	/* This is the actual resolution of the mode. */
-	BEGIN_RING(evo, 0, NV50_EVO_CRTC(nv_crtc->index, REAL_RES), 1);
-	OUT_RING(evo, (mode->vdisplay << 16) | mode->hdisplay);
-	BEGIN_RING(evo, 0, NV50_EVO_CRTC(nv_crtc->index, SCALE_CENTER_OFFSET), 1);
-	OUT_RING(evo, NV50_EVO_CRTC_SCALE_CENTER_OFFSET_VAL(0, 0));
-
-	nv_crtc->set_dither(nv_crtc, nv_connector->use_dithering, false);
-	nv_crtc->set_scale(nv_crtc, nv_connector->scaling_mode, false);
+	nv_crtc->set_dither(nv_crtc, false);
+	nv_crtc->set_scale(nv_crtc, false);
 
 	return nv50_crtc_do_mode_set_base(crtc, old_fb, x, y, false);
 }
@@ -692,7 +676,7 @@ nv50_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
 	if (ret)
 		return ret;
 
-	ret = nv50_crtc_wait_complete(crtc);
+	ret = nv50_display_sync(crtc->dev);
 	if (ret)
 		return ret;
 
@@ -711,7 +695,7 @@ nv50_crtc_mode_set_base_atomic(struct drm_crtc *crtc,
 	if (ret)
 		return ret;
 
-	return nv50_crtc_wait_complete(crtc);
+	return nv50_display_sync(crtc->dev);
 }
 
 static const struct drm_crtc_helper_funcs nv50_crtc_helper_funcs = {
@@ -737,12 +721,6 @@ nv50_crtc_create(struct drm_device *dev, int index)
 	if (!nv_crtc)
 		return -ENOMEM;
 
-	nv_crtc->mode = kzalloc(sizeof(*nv_crtc->mode), GFP_KERNEL);
-	if (!nv_crtc->mode) {
-		kfree(nv_crtc);
-		return -ENOMEM;
-	}
-
 	/* Default CLUT parameters, will be activated on the hw upon
 	 * first mode set.
 	 */
@@ -764,7 +742,6 @@ nv50_crtc_create(struct drm_device *dev, int index)
 	}
 
 	if (ret) {
-		kfree(nv_crtc->mode);
 		kfree(nv_crtc);
 		return ret;
 	}
diff --git a/drivers/gpu/drm/nouveau/nv50_dac.c b/drivers/gpu/drm/nouveau/nv50_dac.c
index 808f3ec8f827..a0f2bebf49e3 100644
--- a/drivers/gpu/drm/nouveau/nv50_dac.c
+++ b/drivers/gpu/drm/nouveau/nv50_dac.c
@@ -200,11 +200,6 @@ nv50_dac_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode,
 }
 
 static void
-nv50_dac_prepare(struct drm_encoder *encoder)
-{
-}
-
-static void
 nv50_dac_commit(struct drm_encoder *encoder)
 {
 }
@@ -266,7 +261,7 @@ static const struct drm_encoder_helper_funcs nv50_dac_helper_funcs = {
 	.save = nv50_dac_save,
 	.restore = nv50_dac_restore,
 	.mode_fixup = nv50_dac_mode_fixup,
-	.prepare = nv50_dac_prepare,
+	.prepare = nv50_dac_disconnect,
 	.commit = nv50_dac_commit,
 	.mode_set = nv50_dac_mode_set,
 	.get_crtc = nv50_dac_crtc_get,
diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c
index 06de250fe617..7ba28e08ee31 100644
--- a/drivers/gpu/drm/nouveau/nv50_display.c
+++ b/drivers/gpu/drm/nouveau/nv50_display.c
@@ -50,9 +50,53 @@ nv50_sor_nr(struct drm_device *dev)
 	return 4;
 }
 
+static int
+evo_icmd(struct drm_device *dev, int ch, u32 mthd, u32 data)
+{
+	int ret = 0;
+	nv_mask(dev, 0x610300 + (ch * 0x08), 0x00000001, 0x00000001);
+	nv_wr32(dev, 0x610304 + (ch * 0x08), data);
+	nv_wr32(dev, 0x610300 + (ch * 0x08), 0x80000001 | mthd);
+	if (!nv_wait(dev, 0x610300 + (ch * 0x08), 0x80000000, 0x00000000))
+		ret = -EBUSY;
+	if (ret || (nouveau_reg_debug & NOUVEAU_REG_DEBUG_EVO))
+		NV_INFO(dev, "EvoPIO: %d 0x%04x 0x%08x\n", ch, mthd, data);
+	nv_mask(dev, 0x610300 + (ch * 0x08), 0x00000001, 0x00000000);
+	return ret;
+}
+
 int
 nv50_display_early_init(struct drm_device *dev)
 {
+	u32 ctrl = nv_rd32(dev, 0x610200);
+	int i;
+
+	/* check if master evo channel is already active, a good a sign as any
+	 * that the display engine is in a weird state (hibernate/kexec), if
+	 * it is, do our best to reset the display engine...
+	 */
+	if ((ctrl & 0x00000003) == 0x00000003) {
+		NV_INFO(dev, "PDISP: EVO(0) 0x%08x, resetting...\n", ctrl);
+
+		/* deactivate both heads first, PDISP will disappear forever
+		 * (well, until you power cycle) on some boards as soon as
+		 * PMC_ENABLE is hit unless they are..
+		 */
+		for (i = 0; i < 2; i++) {
+			evo_icmd(dev, 0, 0x0880 + (i * 0x400), 0x05000000);
+			evo_icmd(dev, 0, 0x089c + (i * 0x400), 0);
+			evo_icmd(dev, 0, 0x0840 + (i * 0x400), 0);
+			evo_icmd(dev, 0, 0x0844 + (i * 0x400), 0);
+			evo_icmd(dev, 0, 0x085c + (i * 0x400), 0);
+			evo_icmd(dev, 0, 0x0874 + (i * 0x400), 0);
+		}
+		evo_icmd(dev, 0, 0x0080, 0);
+
+		/* reset PDISP */
+		nv_mask(dev, 0x000200, 0x40000000, 0x00000000);
+		nv_mask(dev, 0x000200, 0x40000000, 0x40000000);
+	}
+
 	return 0;
 }
 
@@ -62,11 +106,40 @@ nv50_display_late_takedown(struct drm_device *dev)
 }
 
 int
-nv50_display_init(struct drm_device *dev)
+nv50_display_sync(struct drm_device *dev)
 {
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
-	struct drm_connector *connector;
+	struct nouveau_timer_engine *ptimer = &dev_priv->engine.timer;
+	struct nv50_display *disp = nv50_display(dev);
+	struct nouveau_channel *evo = disp->master;
+	u64 start;
+	int ret;
+
+	ret = RING_SPACE(evo, 6);
+	if (ret == 0) {
+		BEGIN_RING(evo, 0, 0x0084, 1);
+		OUT_RING  (evo, 0x80000000);
+		BEGIN_RING(evo, 0, 0x0080, 1);
+		OUT_RING  (evo, 0);
+		BEGIN_RING(evo, 0, 0x0084, 1);
+		OUT_RING  (evo, 0x00000000);
+
+		nv_wo32(disp->ntfy, 0x000, 0x00000000);
+		FIRE_RING (evo);
+
+		start = ptimer->read(dev);
+		do {
+			if (nv_ro32(disp->ntfy, 0x000))
+				return 0;
+		} while (ptimer->read(dev) - start < 2000000000ULL);
+	}
+
+	return -EBUSY;
+}
+
+int
+nv50_display_init(struct drm_device *dev)
+{
 	struct nouveau_channel *evo;
 	int ret, i;
 	u32 val;
@@ -161,16 +234,6 @@ nv50_display_init(struct drm_device *dev)
 		     NV50_PDISPLAY_INTR_EN_1_CLK_UNK20 |
 		     NV50_PDISPLAY_INTR_EN_1_CLK_UNK40);
 
-	/* enable hotplug interrupts */
-	list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
-		struct nouveau_connector *conn = nouveau_connector(connector);
-
-		if (conn->dcb->gpio_tag == 0xff)
-			continue;
-
-		pgpio->irq_enable(dev, conn->dcb->gpio_tag, true);
-	}
-
 	ret = nv50_evo_init(dev);
 	if (ret)
 		return ret;
@@ -178,36 +241,19 @@ nv50_display_init(struct drm_device *dev)
 
 	nv_wr32(dev, NV50_PDISPLAY_OBJECTS, (evo->ramin->vinst >> 8) | 9);
 
-	ret = RING_SPACE(evo, 15);
+	ret = RING_SPACE(evo, 3);
 	if (ret)
 		return ret;
 	BEGIN_RING(evo, 0, NV50_EVO_UNK84, 2);
-	OUT_RING(evo, NV50_EVO_UNK84_NOTIFY_DISABLED);
-	OUT_RING(evo, NvEvoSync);
-	BEGIN_RING(evo, 0, NV50_EVO_CRTC(0, FB_DMA), 1);
-	OUT_RING(evo, NV50_EVO_CRTC_FB_DMA_HANDLE_NONE);
-	BEGIN_RING(evo, 0, NV50_EVO_CRTC(0, UNK0800), 1);
-	OUT_RING(evo, 0);
-	BEGIN_RING(evo, 0, NV50_EVO_CRTC(0, DISPLAY_START), 1);
-	OUT_RING(evo, 0);
-	BEGIN_RING(evo, 0, NV50_EVO_CRTC(0, UNK082C), 1);
-	OUT_RING(evo, 0);
-	/* required to make display sync channels not hate life */
-	BEGIN_RING(evo, 0, NV50_EVO_CRTC(0, UNK900), 1);
-	OUT_RING  (evo, 0x00000311);
-	BEGIN_RING(evo, 0, NV50_EVO_CRTC(1, UNK900), 1);
-	OUT_RING  (evo, 0x00000311);
-	FIRE_RING(evo);
-	if (!nv_wait(dev, 0x640004, 0xffffffff, evo->dma.put << 2))
-		NV_ERROR(dev, "evo pushbuf stalled\n");
-
+	OUT_RING  (evo, NV50_EVO_UNK84_NOTIFY_DISABLED);
+	OUT_RING  (evo, NvEvoSync);
 
-	return 0;
+	return nv50_display_sync(dev);
 }
 
-static int nv50_display_disable(struct drm_device *dev)
+void
+nv50_display_fini(struct drm_device *dev)
 {
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
 	struct nv50_display *disp = nv50_display(dev);
 	struct nouveau_channel *evo = disp->master;
 	struct drm_crtc *drm_crtc;
@@ -270,18 +316,10 @@ static int nv50_display_disable(struct drm_device *dev)
 
 	/* disable interrupts. */
 	nv_wr32(dev, NV50_PDISPLAY_INTR_EN_1, 0x00000000);
-
-	/* disable hotplug interrupts */
-	nv_wr32(dev, 0xe054, 0xffffffff);
-	nv_wr32(dev, 0xe050, 0x00000000);
-	if (dev_priv->chipset >= 0x90) {
-		nv_wr32(dev, 0xe074, 0xffffffff);
-		nv_wr32(dev, 0xe070, 0x00000000);
-	}
-	return 0;
 }
 
-int nv50_display_create(struct drm_device *dev)
+int
+nv50_display_create(struct drm_device *dev)
 {
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
 	struct dcb_table *dcb = &dev_priv->vbios.dcb;
@@ -341,7 +379,7 @@ int nv50_display_create(struct drm_device *dev)
 	tasklet_init(&priv->tasklet, nv50_display_bh, (unsigned long)dev);
 	nouveau_irq_register(dev, 26, nv50_display_isr);
 
-	ret = nv50_display_init(dev);
+	ret = nv50_evo_create(dev);
 	if (ret) {
 		nv50_display_destroy(dev);
 		return ret;
@@ -357,7 +395,7 @@ nv50_display_destroy(struct drm_device *dev)
 
 	NV_DEBUG_KMS(dev, "\n");
 
-	nv50_display_disable(dev);
+	nv50_evo_destroy(dev);
 	nouveau_irq_unregister(dev, 26);
 	kfree(disp);
 }
@@ -521,7 +559,7 @@ nv50_display_script_select(struct drm_device *dev, struct dcb_entry *dcb,
 		} else {
 			/* determine number of lvds links */
 			if (nv_connector && nv_connector->edid &&
-			    nv_connector->dcb->type == DCB_CONNECTOR_LVDS_SPWG) {
+			    nv_connector->type == DCB_CONNECTOR_LVDS_SPWG) {
 				/* http://www.spwg.org */
 				if (((u8 *)nv_connector->edid)[121] == 2)
 					script |= 0x0100;
@@ -722,8 +760,8 @@ nv50_display_unk20_handler(struct drm_device *dev)
 	if (crtc >= 0) {
 		pclk  = nv_rd32(dev, NV50_PDISPLAY_CRTC_P(crtc, CLOCK));
 		pclk &= 0x003fffff;
-
-		nv50_crtc_set_clock(dev, crtc, pclk);
+		if (pclk)
+			nv50_crtc_set_clock(dev, crtc, pclk);
 
 		tmp = nv_rd32(dev, NV50_PDISPLAY_CRTC_CLK_CTRL2(crtc));
 		tmp &= ~0x000000f;
diff --git a/drivers/gpu/drm/nouveau/nv50_display.h b/drivers/gpu/drm/nouveau/nv50_display.h
index c2da503a22aa..95874f7c043c 100644
--- a/drivers/gpu/drm/nouveau/nv50_display.h
+++ b/drivers/gpu/drm/nouveau/nv50_display.h
@@ -69,14 +69,18 @@ int nv50_display_early_init(struct drm_device *dev);
 void nv50_display_late_takedown(struct drm_device *dev);
 int nv50_display_create(struct drm_device *dev);
 int nv50_display_init(struct drm_device *dev);
+void nv50_display_fini(struct drm_device *dev);
 void nv50_display_destroy(struct drm_device *dev);
 int nv50_crtc_blank(struct nouveau_crtc *, bool blank);
 int nv50_crtc_set_clock(struct drm_device *, int head, int pclk);
 
+int  nv50_display_sync(struct drm_device *);
 int  nv50_display_flip_next(struct drm_crtc *, struct drm_framebuffer *,
 			    struct nouveau_channel *chan);
 void nv50_display_flip_stop(struct drm_crtc *);
 
+int  nv50_evo_create(struct drm_device *dev);
+void nv50_evo_destroy(struct drm_device *dev);
 int  nv50_evo_init(struct drm_device *dev);
 void nv50_evo_fini(struct drm_device *dev);
 void nv50_evo_dmaobj_init(struct nouveau_gpuobj *, u32 memtype, u64 base,
diff --git a/drivers/gpu/drm/nouveau/nv50_evo.c b/drivers/gpu/drm/nouveau/nv50_evo.c
index c99d9751880c..9b962e989d7c 100644
--- a/drivers/gpu/drm/nouveau/nv50_evo.c
+++ b/drivers/gpu/drm/nouveau/nv50_evo.c
@@ -218,7 +218,7 @@ nv50_evo_channel_fini(struct nouveau_channel *evo)
 	}
 }
 
-static void
+void
 nv50_evo_destroy(struct drm_device *dev)
 {
 	struct nv50_display *disp = nv50_display(dev);
@@ -235,7 +235,7 @@ nv50_evo_destroy(struct drm_device *dev)
 	nv50_evo_channel_del(&disp->master);
 }
 
-static int
+int
 nv50_evo_create(struct drm_device *dev)
 {
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
@@ -388,12 +388,6 @@ nv50_evo_init(struct drm_device *dev)
 	struct nv50_display *disp = nv50_display(dev);
 	int ret, i;
 
-	if (!disp->master) {
-		ret = nv50_evo_create(dev);
-		if (ret)
-			return ret;
-	}
-
 	ret = nv50_evo_channel_init(disp->master);
 	if (ret)
 		return ret;
@@ -420,6 +414,4 @@ nv50_evo_fini(struct drm_device *dev)
 
 	if (disp->master)
 		nv50_evo_channel_fini(disp->master);
-
-	nv50_evo_destroy(dev);
 }
diff --git a/drivers/gpu/drm/nouveau/nv50_fifo.c b/drivers/gpu/drm/nouveau/nv50_fifo.c
index c34a074f7ea1..3bc2a565c20b 100644
--- a/drivers/gpu/drm/nouveau/nv50_fifo.c
+++ b/drivers/gpu/drm/nouveau/nv50_fifo.c
@@ -230,6 +230,7 @@ nv50_fifo_create_context(struct nouveau_channel *chan)
 	struct drm_device *dev = chan->dev;
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
 	struct nouveau_gpuobj *ramfc = NULL;
+        uint64_t ib_offset = chan->pushbuf_base + chan->dma.ib_base * 4;
 	unsigned long flags;
 	int ret;
 
@@ -280,8 +281,9 @@ nv50_fifo_create_context(struct nouveau_channel *chan)
 	nv_wo32(ramfc, 0x7c, 0x30000001);
 	nv_wo32(ramfc, 0x78, 0x00000000);
 	nv_wo32(ramfc, 0x3c, 0x403f6078);
-	nv_wo32(ramfc, 0x50, chan->pushbuf_base + chan->dma.ib_base * 4);
-	nv_wo32(ramfc, 0x54, drm_order(chan->dma.ib_max + 1) << 16);
+	nv_wo32(ramfc, 0x50, lower_32_bits(ib_offset));
+	nv_wo32(ramfc, 0x54, upper_32_bits(ib_offset) |
+                drm_order(chan->dma.ib_max + 1) << 16);
 
 	if (dev_priv->chipset != 0x50) {
 		nv_wo32(chan->ramin, 0, chan->id);
diff --git a/drivers/gpu/drm/nouveau/nv50_gpio.c b/drivers/gpu/drm/nouveau/nv50_gpio.c
index 793a5ccca121..f429e6a8ca7a 100644
--- a/drivers/gpu/drm/nouveau/nv50_gpio.c
+++ b/drivers/gpu/drm/nouveau/nv50_gpio.c
@@ -25,229 +25,95 @@
 #include "drmP.h"
 #include "nouveau_drv.h"
 #include "nouveau_hw.h"
+#include "nouveau_gpio.h"
 
 #include "nv50_display.h"
 
-static void nv50_gpio_isr(struct drm_device *dev);
-static void nv50_gpio_isr_bh(struct work_struct *work);
-
-struct nv50_gpio_priv {
-	struct list_head handlers;
-	spinlock_t lock;
-};
-
-struct nv50_gpio_handler {
-	struct drm_device *dev;
-	struct list_head head;
-	struct work_struct work;
-	bool inhibit;
-
-	struct dcb_gpio_entry *gpio;
-
-	void (*handler)(void *data, int state);
-	void *data;
-};
-
 static int
-nv50_gpio_location(struct dcb_gpio_entry *gpio, uint32_t *reg, uint32_t *shift)
+nv50_gpio_location(int line, u32 *reg, u32 *shift)
 {
 	const uint32_t nv50_gpio_reg[4] = { 0xe104, 0xe108, 0xe280, 0xe284 };
 
-	if (gpio->line >= 32)
+	if (line >= 32)
 		return -EINVAL;
 
-	*reg = nv50_gpio_reg[gpio->line >> 3];
-	*shift = (gpio->line & 7) << 2;
+	*reg = nv50_gpio_reg[line >> 3];
+	*shift = (line & 7) << 2;
 	return 0;
 }
 
 int
-nv50_gpio_get(struct drm_device *dev, enum dcb_gpio_tag tag)
+nv50_gpio_drive(struct drm_device *dev, int line, int dir, int out)
 {
-	struct dcb_gpio_entry *gpio;
-	uint32_t r, s, v;
-
-	gpio = nouveau_bios_gpio_entry(dev, tag);
-	if (!gpio)
-		return -ENOENT;
+	u32 reg, shift;
 
-	if (nv50_gpio_location(gpio, &r, &s))
+	if (nv50_gpio_location(line, &reg, &shift))
 		return -EINVAL;
 
-	v = nv_rd32(dev, r) >> (s + 2);
-	return ((v & 1) == (gpio->state[1] & 1));
+	nv_mask(dev, reg, 7 << shift, (((dir ^ 1) << 1) | out) << shift);
+	return 0;
 }
 
 int
-nv50_gpio_set(struct drm_device *dev, enum dcb_gpio_tag tag, int state)
+nv50_gpio_sense(struct drm_device *dev, int line)
 {
-	struct dcb_gpio_entry *gpio;
-	uint32_t r, s, v;
-
-	gpio = nouveau_bios_gpio_entry(dev, tag);
-	if (!gpio)
-		return -ENOENT;
+	u32 reg, shift;
 
-	if (nv50_gpio_location(gpio, &r, &s))
+	if (nv50_gpio_location(line, &reg, &shift))
 		return -EINVAL;
 
-	v  = nv_rd32(dev, r) & ~(0x3 << s);
-	v |= (gpio->state[state] ^ 2) << s;
-	nv_wr32(dev, r, v);
-	return 0;
+	return !!(nv_rd32(dev, reg) & (4 << shift));
 }
 
-int
-nvd0_gpio_get(struct drm_device *dev, enum dcb_gpio_tag tag)
+void
+nv50_gpio_irq_enable(struct drm_device *dev, int line, bool on)
 {
-	struct dcb_gpio_entry *gpio;
-	u32 v;
-
-	gpio = nouveau_bios_gpio_entry(dev, tag);
-	if (!gpio)
-		return -ENOENT;
+	u32 reg  = line < 16 ? 0xe050 : 0xe070;
+	u32 mask = 0x00010001 << (line & 0xf);
 
-	v  = nv_rd32(dev, 0x00d610 + (gpio->line * 4));
-	v &= 0x00004000;
-	return (!!v == (gpio->state[1] & 1));
+	nv_wr32(dev, reg + 4, mask);
+	nv_mask(dev, reg + 0, mask, on ? mask : 0);
 }
 
 int
-nvd0_gpio_set(struct drm_device *dev, enum dcb_gpio_tag tag, int state)
+nvd0_gpio_drive(struct drm_device *dev, int line, int dir, int out)
 {
-	struct dcb_gpio_entry *gpio;
-	u32 v;
-
-	gpio = nouveau_bios_gpio_entry(dev, tag);
-	if (!gpio)
-		return -ENOENT;
-
-	v = gpio->state[state] ^ 2;
-
-	nv_mask(dev, 0x00d610 + (gpio->line * 4), 0x00003000, v << 12);
+	u32 data = ((dir ^ 1) << 13) | (out << 12);
+	nv_mask(dev, 0x00d610 + (line * 4), 0x00003000, data);
+	nv_mask(dev, 0x00d604, 0x00000001, 0x00000001); /* update? */
 	return 0;
 }
 
 int
-nv50_gpio_irq_register(struct drm_device *dev, enum dcb_gpio_tag tag,
-		       void (*handler)(void *, int), void *data)
+nvd0_gpio_sense(struct drm_device *dev, int line)
 {
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
-	struct nv50_gpio_priv *priv = pgpio->priv;
-	struct nv50_gpio_handler *gpioh;
-	struct dcb_gpio_entry *gpio;
-	unsigned long flags;
-
-	gpio = nouveau_bios_gpio_entry(dev, tag);
-	if (!gpio)
-		return -ENOENT;
-
-	gpioh = kzalloc(sizeof(*gpioh), GFP_KERNEL);
-	if (!gpioh)
-		return -ENOMEM;
-
-	INIT_WORK(&gpioh->work, nv50_gpio_isr_bh);
-	gpioh->dev  = dev;
-	gpioh->gpio = gpio;
-	gpioh->handler = handler;
-	gpioh->data = data;
-
-	spin_lock_irqsave(&priv->lock, flags);
-	list_add(&gpioh->head, &priv->handlers);
-	spin_unlock_irqrestore(&priv->lock, flags);
-	return 0;
+	return !!(nv_rd32(dev, 0x00d610 + (line * 4)) & 0x00004000);
 }
 
-void
-nv50_gpio_irq_unregister(struct drm_device *dev, enum dcb_gpio_tag tag,
-			 void (*handler)(void *, int), void *data)
-{
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
-	struct nv50_gpio_priv *priv = pgpio->priv;
-	struct nv50_gpio_handler *gpioh, *tmp;
-	struct dcb_gpio_entry *gpio;
-	LIST_HEAD(tofree);
-	unsigned long flags;
-
-	gpio = nouveau_bios_gpio_entry(dev, tag);
-	if (!gpio)
-		return;
-
-	spin_lock_irqsave(&priv->lock, flags);
-	list_for_each_entry_safe(gpioh, tmp, &priv->handlers, head) {
-		if (gpioh->gpio != gpio ||
-		    gpioh->handler != handler ||
-		    gpioh->data != data)
-			continue;
-		list_move(&gpioh->head, &tofree);
-	}
-	spin_unlock_irqrestore(&priv->lock, flags);
-
-	list_for_each_entry_safe(gpioh, tmp, &tofree, head) {
-		flush_work_sync(&gpioh->work);
-		kfree(gpioh);
-	}
-}
-
-bool
-nv50_gpio_irq_enable(struct drm_device *dev, enum dcb_gpio_tag tag, bool on)
-{
-	struct dcb_gpio_entry *gpio;
-	u32 reg, mask;
-
-	gpio = nouveau_bios_gpio_entry(dev, tag);
-	if (!gpio)
-		return false;
-
-	reg  = gpio->line < 16 ? 0xe050 : 0xe070;
-	mask = 0x00010001 << (gpio->line & 0xf);
-
-	nv_wr32(dev, reg + 4, mask);
-	reg = nv_mask(dev, reg + 0, mask, on ? mask : 0);
-	return (reg & mask) == mask;
-}
-
-static int
-nv50_gpio_create(struct drm_device *dev)
+static void
+nv50_gpio_isr(struct drm_device *dev)
 {
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
-	struct nv50_gpio_priv *priv;
-
-	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
-	if (!priv)
-		return -ENOMEM;
+	u32 intr0, intr1 = 0;
+	u32 hi, lo;
 
-	INIT_LIST_HEAD(&priv->handlers);
-	spin_lock_init(&priv->lock);
-	pgpio->priv = priv;
-	return 0;
-}
+	intr0 = nv_rd32(dev, 0xe054) & nv_rd32(dev, 0xe050);
+	if (dev_priv->chipset >= 0x90)
+		intr1 = nv_rd32(dev, 0xe074) & nv_rd32(dev, 0xe070);
 
-static void
-nv50_gpio_destroy(struct drm_device *dev)
-{
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
+	hi = (intr0 & 0x0000ffff) | (intr1 << 16);
+	lo = (intr0 >> 16) | (intr1 & 0xffff0000);
+	nouveau_gpio_isr(dev, 0, hi | lo);
 
-	kfree(pgpio->priv);
-	pgpio->priv = NULL;
+	nv_wr32(dev, 0xe054, intr0);
+	if (dev_priv->chipset >= 0x90)
+		nv_wr32(dev, 0xe074, intr1);
 }
 
 int
 nv50_gpio_init(struct drm_device *dev)
 {
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
-	int ret;
-
-	if (!pgpio->priv) {
-		ret = nv50_gpio_create(dev);
-		if (ret)
-			return ret;
-	}
 
 	/* disable, and ack any pending gpio interrupts */
 	nv_wr32(dev, 0xe050, 0x00000000);
@@ -270,64 +136,4 @@ nv50_gpio_fini(struct drm_device *dev)
 	if (dev_priv->chipset >= 0x90)
 		nv_wr32(dev, 0xe070, 0x00000000);
 	nouveau_irq_unregister(dev, 21);
-
-	nv50_gpio_destroy(dev);
-}
-
-static void
-nv50_gpio_isr_bh(struct work_struct *work)
-{
-	struct nv50_gpio_handler *gpioh =
-		container_of(work, struct nv50_gpio_handler, work);
-	struct drm_nouveau_private *dev_priv = gpioh->dev->dev_private;
-	struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
-	struct nv50_gpio_priv *priv = pgpio->priv;
-	unsigned long flags;
-	int state;
-
-	state = pgpio->get(gpioh->dev, gpioh->gpio->tag);
-	if (state < 0)
-		return;
-
-	gpioh->handler(gpioh->data, state);
-
-	spin_lock_irqsave(&priv->lock, flags);
-	gpioh->inhibit = false;
-	spin_unlock_irqrestore(&priv->lock, flags);
-}
-
-static void
-nv50_gpio_isr(struct drm_device *dev)
-{
-	struct drm_nouveau_private *dev_priv = dev->dev_private;
-	struct nouveau_gpio_engine *pgpio = &dev_priv->engine.gpio;
-	struct nv50_gpio_priv *priv = pgpio->priv;
-	struct nv50_gpio_handler *gpioh;
-	u32 intr0, intr1 = 0;
-	u32 hi, lo, ch;
-
-	intr0 = nv_rd32(dev, 0xe054) & nv_rd32(dev, 0xe050);
-	if (dev_priv->chipset >= 0x90)
-		intr1 = nv_rd32(dev, 0xe074) & nv_rd32(dev, 0xe070);
-
-	hi = (intr0 & 0x0000ffff) | (intr1 << 16);
-	lo = (intr0 >> 16) | (intr1 & 0xffff0000);
-	ch = hi | lo;
-
-	nv_wr32(dev, 0xe054, intr0);
-	if (dev_priv->chipset >= 0x90)
-		nv_wr32(dev, 0xe074, intr1);
-
-	spin_lock(&priv->lock);
-	list_for_each_entry(gpioh, &priv->handlers, head) {
-		if (!(ch & (1 << gpioh->gpio->line)))
-			continue;
-
-		if (gpioh->inhibit)
-			continue;
-		gpioh->inhibit = true;
-
-		schedule_work(&gpioh->work);
-	}
-	spin_unlock(&priv->lock);
 }
diff --git a/drivers/gpu/drm/nouveau/nv50_graph.c b/drivers/gpu/drm/nouveau/nv50_graph.c
index ac601f7c4e1a..33d5711a918d 100644
--- a/drivers/gpu/drm/nouveau/nv50_graph.c
+++ b/drivers/gpu/drm/nouveau/nv50_graph.c
@@ -616,9 +616,9 @@ nv50_pgraph_tp_trap(struct drm_device *dev, int type, uint32_t ustatus_old,
 			}
 			break;
 		case 7: /* MP error */
-			if (ustatus & 0x00010000) {
+			if (ustatus & 0x04030000) {
 				nv50_pgraph_mp_trap(dev, i, display);
-				ustatus &= ~0x00010000;
+				ustatus &= ~0x04030000;
 			}
 			break;
 		case 8: /* TPDMA error */
diff --git a/drivers/gpu/drm/nouveau/nv50_pm.c b/drivers/gpu/drm/nouveau/nv50_pm.c
index 3d5a86b98282..03937212e9d8 100644
--- a/drivers/gpu/drm/nouveau/nv50_pm.c
+++ b/drivers/gpu/drm/nouveau/nv50_pm.c
@@ -25,122 +25,745 @@
 #include "drmP.h"
 #include "nouveau_drv.h"
 #include "nouveau_bios.h"
+#include "nouveau_hw.h"
 #include "nouveau_pm.h"
+#include "nouveau_hwsq.h"
 
-struct nv50_pm_state {
-	struct nouveau_pm_level *perflvl;
-	struct pll_lims pll;
-	enum pll_types type;
-	int N, M, P;
+enum clk_src {
+	clk_src_crystal,
+	clk_src_href,
+	clk_src_hclk,
+	clk_src_hclkm3,
+	clk_src_hclkm3d2,
+	clk_src_host,
+	clk_src_nvclk,
+	clk_src_sclk,
+	clk_src_mclk,
+	clk_src_vdec,
+	clk_src_dom6
 };
 
+static u32 read_clk(struct drm_device *, enum clk_src);
+
+static u32
+read_div(struct drm_device *dev)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+
+	switch (dev_priv->chipset) {
+	case 0x50: /* it exists, but only has bit 31, not the dividers.. */
+	case 0x84:
+	case 0x86:
+	case 0x98:
+	case 0xa0:
+		return nv_rd32(dev, 0x004700);
+	case 0x92:
+	case 0x94:
+	case 0x96:
+		return nv_rd32(dev, 0x004800);
+	default:
+		return 0x00000000;
+	}
+}
+
+static u32
+read_pll_src(struct drm_device *dev, u32 base)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	u32 coef, ref = read_clk(dev, clk_src_crystal);
+	u32 rsel = nv_rd32(dev, 0x00e18c);
+	int P, N, M, id;
+
+	switch (dev_priv->chipset) {
+	case 0x50:
+	case 0xa0:
+		switch (base) {
+		case 0x4020:
+		case 0x4028: id = !!(rsel & 0x00000004); break;
+		case 0x4008: id = !!(rsel & 0x00000008); break;
+		case 0x4030: id = 0; break;
+		default:
+			NV_ERROR(dev, "ref: bad pll 0x%06x\n", base);
+			return 0;
+		}
+
+		coef = nv_rd32(dev, 0x00e81c + (id * 0x0c));
+		ref *=  (coef & 0x01000000) ? 2 : 4;
+		P    =  (coef & 0x00070000) >> 16;
+		N    = ((coef & 0x0000ff00) >> 8) + 1;
+		M    = ((coef & 0x000000ff) >> 0) + 1;
+		break;
+	case 0x84:
+	case 0x86:
+	case 0x92:
+		coef = nv_rd32(dev, 0x00e81c);
+		P    = (coef & 0x00070000) >> 16;
+		N    = (coef & 0x0000ff00) >> 8;
+		M    = (coef & 0x000000ff) >> 0;
+		break;
+	case 0x94:
+	case 0x96:
+	case 0x98:
+		rsel = nv_rd32(dev, 0x00c050);
+		switch (base) {
+		case 0x4020: rsel = (rsel & 0x00000003) >> 0; break;
+		case 0x4008: rsel = (rsel & 0x0000000c) >> 2; break;
+		case 0x4028: rsel = (rsel & 0x00001800) >> 11; break;
+		case 0x4030: rsel = 3; break;
+		default:
+			NV_ERROR(dev, "ref: bad pll 0x%06x\n", base);
+			return 0;
+		}
+
+		switch (rsel) {
+		case 0: id = 1; break;
+		case 1: return read_clk(dev, clk_src_crystal);
+		case 2: return read_clk(dev, clk_src_href);
+		case 3: id = 0; break;
+		}
+
+		coef =  nv_rd32(dev, 0x00e81c + (id * 0x28));
+		P    = (nv_rd32(dev, 0x00e824 + (id * 0x28)) >> 16) & 7;
+		P   += (coef & 0x00070000) >> 16;
+		N    = (coef & 0x0000ff00) >> 8;
+		M    = (coef & 0x000000ff) >> 0;
+		break;
+	default:
+		BUG_ON(1);
+	}
+
+	if (M)
+		return (ref * N / M) >> P;
+	return 0;
+}
+
+static u32
+read_pll_ref(struct drm_device *dev, u32 base)
+{
+	u32 src, mast = nv_rd32(dev, 0x00c040);
+
+	switch (base) {
+	case 0x004028:
+		src = !!(mast & 0x00200000);
+		break;
+	case 0x004020:
+		src = !!(mast & 0x00400000);
+		break;
+	case 0x004008:
+		src = !!(mast & 0x00010000);
+		break;
+	case 0x004030:
+		src = !!(mast & 0x02000000);
+		break;
+	case 0x00e810:
+		return read_clk(dev, clk_src_crystal);
+	default:
+		NV_ERROR(dev, "bad pll 0x%06x\n", base);
+		return 0;
+	}
+
+	if (src)
+		return read_clk(dev, clk_src_href);
+	return read_pll_src(dev, base);
+}
+
+static u32
+read_pll(struct drm_device *dev, u32 base)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	u32 mast = nv_rd32(dev, 0x00c040);
+	u32 ctrl = nv_rd32(dev, base + 0);
+	u32 coef = nv_rd32(dev, base + 4);
+	u32 ref = read_pll_ref(dev, base);
+	u32 clk = 0;
+	int N1, N2, M1, M2;
+
+	if (base == 0x004028 && (mast & 0x00100000)) {
+		/* wtf, appears to only disable post-divider on nva0 */
+		if (dev_priv->chipset != 0xa0)
+			return read_clk(dev, clk_src_dom6);
+	}
+
+	N2 = (coef & 0xff000000) >> 24;
+	M2 = (coef & 0x00ff0000) >> 16;
+	N1 = (coef & 0x0000ff00) >> 8;
+	M1 = (coef & 0x000000ff);
+	if ((ctrl & 0x80000000) && M1) {
+		clk = ref * N1 / M1;
+		if ((ctrl & 0x40000100) == 0x40000000) {
+			if (M2)
+				clk = clk * N2 / M2;
+			else
+				clk = 0;
+		}
+	}
+
+	return clk;
+}
+
+static u32
+read_clk(struct drm_device *dev, enum clk_src src)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	u32 mast = nv_rd32(dev, 0x00c040);
+	u32 P = 0;
+
+	switch (src) {
+	case clk_src_crystal:
+		return dev_priv->crystal;
+	case clk_src_href:
+		return 100000; /* PCIE reference clock */
+	case clk_src_hclk:
+		return read_clk(dev, clk_src_href) * 27778 / 10000;
+	case clk_src_hclkm3:
+		return read_clk(dev, clk_src_hclk) * 3;
+	case clk_src_hclkm3d2:
+		return read_clk(dev, clk_src_hclk) * 3 / 2;
+	case clk_src_host:
+		switch (mast & 0x30000000) {
+		case 0x00000000: return read_clk(dev, clk_src_href);
+		case 0x10000000: break;
+		case 0x20000000: /* !0x50 */
+		case 0x30000000: return read_clk(dev, clk_src_hclk);
+		}
+		break;
+	case clk_src_nvclk:
+		if (!(mast & 0x00100000))
+			P = (nv_rd32(dev, 0x004028) & 0x00070000) >> 16;
+		switch (mast & 0x00000003) {
+		case 0x00000000: return read_clk(dev, clk_src_crystal) >> P;
+		case 0x00000001: return read_clk(dev, clk_src_dom6);
+		case 0x00000002: return read_pll(dev, 0x004020) >> P;
+		case 0x00000003: return read_pll(dev, 0x004028) >> P;
+		}
+		break;
+	case clk_src_sclk:
+		P = (nv_rd32(dev, 0x004020) & 0x00070000) >> 16;
+		switch (mast & 0x00000030) {
+		case 0x00000000:
+			if (mast & 0x00000080)
+				return read_clk(dev, clk_src_host) >> P;
+			return read_clk(dev, clk_src_crystal) >> P;
+		case 0x00000010: break;
+		case 0x00000020: return read_pll(dev, 0x004028) >> P;
+		case 0x00000030: return read_pll(dev, 0x004020) >> P;
+		}
+		break;
+	case clk_src_mclk:
+		P = (nv_rd32(dev, 0x004008) & 0x00070000) >> 16;
+		if (nv_rd32(dev, 0x004008) & 0x00000200) {
+			switch (mast & 0x0000c000) {
+			case 0x00000000:
+				return read_clk(dev, clk_src_crystal) >> P;
+			case 0x00008000:
+			case 0x0000c000:
+				return read_clk(dev, clk_src_href) >> P;
+			}
+		} else {
+			return read_pll(dev, 0x004008) >> P;
+		}
+		break;
+	case clk_src_vdec:
+		P = (read_div(dev) & 0x00000700) >> 8;
+		switch (dev_priv->chipset) {
+		case 0x84:
+		case 0x86:
+		case 0x92:
+		case 0x94:
+		case 0x96:
+		case 0xa0:
+			switch (mast & 0x00000c00) {
+			case 0x00000000:
+				if (dev_priv->chipset == 0xa0) /* wtf?? */
+					return read_clk(dev, clk_src_nvclk) >> P;
+				return read_clk(dev, clk_src_crystal) >> P;
+			case 0x00000400:
+				return 0;
+			case 0x00000800:
+				if (mast & 0x01000000)
+					return read_pll(dev, 0x004028) >> P;
+				return read_pll(dev, 0x004030) >> P;
+			case 0x00000c00:
+				return read_clk(dev, clk_src_nvclk) >> P;
+			}
+			break;
+		case 0x98:
+			switch (mast & 0x00000c00) {
+			case 0x00000000:
+				return read_clk(dev, clk_src_nvclk) >> P;
+			case 0x00000400:
+				return 0;
+			case 0x00000800:
+				return read_clk(dev, clk_src_hclkm3d2) >> P;
+			case 0x00000c00:
+				return read_clk(dev, clk_src_mclk) >> P;
+			}
+			break;
+		}
+		break;
+	case clk_src_dom6:
+		switch (dev_priv->chipset) {
+		case 0x50:
+		case 0xa0:
+			return read_pll(dev, 0x00e810) >> 2;
+		case 0x84:
+		case 0x86:
+		case 0x92:
+		case 0x94:
+		case 0x96:
+		case 0x98:
+			P = (read_div(dev) & 0x00000007) >> 0;
+			switch (mast & 0x0c000000) {
+			case 0x00000000: return read_clk(dev, clk_src_href);
+			case 0x04000000: break;
+			case 0x08000000: return read_clk(dev, clk_src_hclk);
+			case 0x0c000000:
+				return read_clk(dev, clk_src_hclkm3) >> P;
+			}
+			break;
+		default:
+			break;
+		}
+	default:
+		break;
+	}
+
+	NV_DEBUG(dev, "unknown clock source %d 0x%08x\n", src, mast);
+	return 0;
+}
+
 int
-nv50_pm_clock_get(struct drm_device *dev, u32 id)
+nv50_pm_clocks_get(struct drm_device *dev, struct nouveau_pm_level *perflvl)
 {
-	struct pll_lims pll;
-	int P, N, M, ret;
-	u32 reg0, reg1;
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	if (dev_priv->chipset == 0xaa ||
+	    dev_priv->chipset == 0xac)
+		return 0;
 
-	ret = get_pll_limits(dev, id, &pll);
+	perflvl->core   = read_clk(dev, clk_src_nvclk);
+	perflvl->shader = read_clk(dev, clk_src_sclk);
+	perflvl->memory = read_clk(dev, clk_src_mclk);
+	if (dev_priv->chipset != 0x50) {
+		perflvl->vdec = read_clk(dev, clk_src_vdec);
+		perflvl->dom6 = read_clk(dev, clk_src_dom6);
+	}
+
+	return 0;
+}
+
+struct nv50_pm_state {
+	struct hwsq_ucode mclk_hwsq;
+	u32 mscript;
+
+	u32 emast;
+	u32 nctrl;
+	u32 ncoef;
+	u32 sctrl;
+	u32 scoef;
+
+	u32 amast;
+	u32 pdivs;
+};
+
+static u32
+calc_pll(struct drm_device *dev, u32 reg, struct pll_lims *pll,
+	 u32 clk, int *N1, int *M1, int *log2P)
+{
+	struct nouveau_pll_vals coef;
+	int ret;
+
+	ret = get_pll_limits(dev, reg, pll);
 	if (ret)
-		return ret;
+		return 0;
+
+	pll->vco2.maxfreq = 0;
+	pll->refclk = read_pll_ref(dev, reg);
+	if (!pll->refclk)
+		return 0;
 
-	reg0 = nv_rd32(dev, pll.reg + 0);
-	reg1 = nv_rd32(dev, pll.reg + 4);
+	ret = nouveau_calc_pll_mnp(dev, pll, clk, &coef);
+	if (ret == 0)
+		return 0;
 
-	if ((reg0 & 0x80000000) == 0) {
-		if (id == PLL_SHADER) {
-			NV_DEBUG(dev, "Shader PLL is disabled. "
-				"Shader clock is twice the core\n");
-			ret = nv50_pm_clock_get(dev, PLL_CORE);
-			if (ret > 0)
-				return ret << 1;
-		} else if (id == PLL_MEMORY) {
-			NV_DEBUG(dev, "Memory PLL is disabled. "
-				"Memory clock is equal to the ref_clk\n");
-			return pll.refclk;
+	*N1 = coef.N1;
+	*M1 = coef.M1;
+	*log2P = coef.log2P;
+	return ret;
+}
+
+static inline u32
+calc_div(u32 src, u32 target, int *div)
+{
+	u32 clk0 = src, clk1 = src;
+	for (*div = 0; *div <= 7; (*div)++) {
+		if (clk0 <= target) {
+			clk1 = clk0 << (*div ? 1 : 0);
+			break;
 		}
+		clk0 >>= 1;
+	}
+
+	if (target - clk0 <= clk1 - target)
+		return clk0;
+	(*div)--;
+	return clk1;
+}
+
+static inline u32
+clk_same(u32 a, u32 b)
+{
+	return ((a / 1000) == (b / 1000));
+}
+
+static int
+calc_mclk(struct drm_device *dev, u32 freq, struct hwsq_ucode *hwsq)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct pll_lims pll;
+	u32 mast = nv_rd32(dev, 0x00c040);
+	u32 ctrl = nv_rd32(dev, 0x004008);
+	u32 coef = nv_rd32(dev, 0x00400c);
+	u32 orig = ctrl;
+	u32 crtc_mask = 0;
+	int N, M, P;
+	int ret, i;
+
+	/* use pcie refclock if possible, otherwise use mpll */
+	ctrl &= ~0x81ff0200;
+	if (clk_same(freq, read_clk(dev, clk_src_href))) {
+		ctrl |= 0x00000200 | (pll.log2p_bias << 19);
+	} else {
+		ret = calc_pll(dev, 0x4008, &pll, freq, &N, &M, &P);
+		if (ret == 0)
+			return -EINVAL;
+
+		ctrl |= 0x80000000 | (P << 22) | (P << 16);
+		ctrl |= pll.log2p_bias << 19;
+		coef  = (N << 8) | M;
+	}
+
+	mast &= ~0xc0000000; /* get MCLK_2 from HREF */
+	mast |=  0x0000c000; /* use MCLK_2 as MPLL_BYPASS clock */
+
+	/* determine active crtcs */
+	for (i = 0; i < 2; i++) {
+		if (nv_rd32(dev, NV50_PDISPLAY_CRTC_C(i, CLOCK)))
+			crtc_mask |= (1 << i);
+	}
+
+	/* build the ucode which will reclock the memory for us */
+	hwsq_init(hwsq);
+	if (crtc_mask) {
+		hwsq_op5f(hwsq, crtc_mask, 0x00); /* wait for scanout */
+		hwsq_op5f(hwsq, crtc_mask, 0x01); /* wait for vblank */
 	}
+	if (dev_priv->chipset >= 0x92)
+		hwsq_wr32(hwsq, 0x611200, 0x00003300); /* disable scanout */
+	hwsq_setf(hwsq, 0x10, 0); /* disable bus access */
+	hwsq_op5f(hwsq, 0x00, 0x01); /* no idea :s */
+
+	/* prepare memory controller */
+	hwsq_wr32(hwsq, 0x1002d4, 0x00000001); /* precharge banks and idle */
+	hwsq_wr32(hwsq, 0x1002d0, 0x00000001); /* force refresh */
+	hwsq_wr32(hwsq, 0x100210, 0x00000000); /* stop the automatic refresh */
+	hwsq_wr32(hwsq, 0x1002dc, 0x00000001); /* start self refresh mode */
 
-	P = (reg0 & 0x00070000) >> 16;
-	N = (reg1 & 0x0000ff00) >> 8;
-	M = (reg1 & 0x000000ff);
+	/* reclock memory */
+	hwsq_wr32(hwsq, 0xc040, mast);
+	hwsq_wr32(hwsq, 0x4008, orig | 0x00000200); /* bypass MPLL */
+	hwsq_wr32(hwsq, 0x400c, coef);
+	hwsq_wr32(hwsq, 0x4008, ctrl);
 
-	return ((pll.refclk * N / M) >> P);
+	/* restart memory controller */
+	hwsq_wr32(hwsq, 0x1002d4, 0x00000001); /* precharge banks and idle */
+	hwsq_wr32(hwsq, 0x1002dc, 0x00000000); /* stop self refresh mode */
+	hwsq_wr32(hwsq, 0x100210, 0x80000000); /* restart automatic refresh */
+	hwsq_usec(hwsq, 12); /* wait for the PLL to stabilize */
+
+	hwsq_usec(hwsq, 48); /* may be unnecessary: causes flickering */
+	hwsq_setf(hwsq, 0x10, 1); /* enable bus access */
+	hwsq_op5f(hwsq, 0x00, 0x00); /* no idea, reverse of 0x00, 0x01? */
+	if (dev_priv->chipset >= 0x92)
+		hwsq_wr32(hwsq, 0x611200, 0x00003330); /* enable scanout */
+	hwsq_fini(hwsq);
+	return 0;
 }
 
 void *
-nv50_pm_clock_pre(struct drm_device *dev, struct nouveau_pm_level *perflvl,
-		  u32 id, int khz)
+nv50_pm_clocks_pre(struct drm_device *dev, struct nouveau_pm_level *perflvl)
 {
-	struct nv50_pm_state *state;
-	int dummy, ret;
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nv50_pm_state *info;
+	struct pll_lims pll;
+	int ret = -EINVAL;
+	int N, M, P1, P2;
+	u32 clk, out;
 
-	state = kzalloc(sizeof(*state), GFP_KERNEL);
-	if (!state)
+	if (dev_priv->chipset == 0xaa ||
+	    dev_priv->chipset == 0xac)
+		return ERR_PTR(-ENODEV);
+
+	info = kmalloc(sizeof(*info), GFP_KERNEL);
+	if (!info)
 		return ERR_PTR(-ENOMEM);
-	state->type = id;
-	state->perflvl = perflvl;
 
-	ret = get_pll_limits(dev, id, &state->pll);
-	if (ret < 0) {
-		kfree(state);
-		return (ret == -ENOENT) ? NULL : ERR_PTR(ret);
+	/* core: for the moment at least, always use nvpll */
+	clk = calc_pll(dev, 0x4028, &pll, perflvl->core, &N, &M, &P1);
+	if (clk == 0)
+		goto error;
+
+	info->emast = 0x00000003;
+	info->nctrl = 0x80000000 | (P1 << 19) | (P1 << 16);
+	info->ncoef = (N << 8) | M;
+
+	/* shader: tie to nvclk if possible, otherwise use spll.  have to be
+	 * very careful that the shader clock is at least twice the core, or
+	 * some chipsets will be very unhappy.  i expect most or all of these
+	 * cases will be handled by tying to nvclk, but it's possible there's
+	 * corners
+	 */
+	if (P1-- && perflvl->shader == (perflvl->core << 1)) {
+		info->emast |= 0x00000020;
+		info->sctrl  = 0x00000000 | (P1 << 19) | (P1 << 16);
+		info->scoef  = nv_rd32(dev, 0x004024);
+	} else {
+		clk = calc_pll(dev, 0x4020, &pll, perflvl->shader, &N, &M, &P1);
+		if (clk == 0)
+			goto error;
+
+		info->emast |= 0x00000030;
+		info->sctrl  = 0x80000000 | (P1 << 19) | (P1 << 16);
+		info->scoef  = (N << 8) | M;
+	}
+
+	/* memory: build hwsq ucode which we'll use to reclock memory */
+	info->mclk_hwsq.len = 0;
+	if (perflvl->memory) {
+		clk = calc_mclk(dev, perflvl->memory, &info->mclk_hwsq);
+		if (clk < 0) {
+			ret = clk;
+			goto error;
+		}
+
+		info->mscript = perflvl->memscript;
+	}
+
+	/* vdec: avoid modifying xpll until we know exactly how the other
+	 * clock domains work, i suspect at least some of them can also be
+	 * tied to xpll...
+	 */
+	info->amast = nv_rd32(dev, 0x00c040);
+	info->pdivs = read_div(dev);
+	if (perflvl->vdec) {
+		/* see how close we can get using nvclk as a source */
+		clk = calc_div(perflvl->core, perflvl->vdec, &P1);
+
+		/* see how close we can get using xpll/hclk as a source */
+		if (dev_priv->chipset != 0x98)
+			out = read_pll(dev, 0x004030);
+		else
+			out = read_clk(dev, clk_src_hclkm3d2);
+		out = calc_div(out, perflvl->vdec, &P2);
+
+		/* select whichever gets us closest */
+		info->amast &= ~0x00000c00;
+		info->pdivs &= ~0x00000700;
+		if (abs((int)perflvl->vdec - clk) <=
+		    abs((int)perflvl->vdec - out)) {
+			if (dev_priv->chipset != 0x98)
+				info->amast |= 0x00000c00;
+			info->pdivs |= P1 << 8;
+		} else {
+			info->amast |= 0x00000800;
+			info->pdivs |= P2 << 8;
+		}
+	}
+
+	/* dom6: nfi what this is, but we're limited to various combinations
+	 * of the host clock frequency
+	 */
+	if (perflvl->dom6) {
+		info->amast &= ~0x0c000000;
+		if (clk_same(perflvl->dom6, read_clk(dev, clk_src_href))) {
+			info->amast |= 0x00000000;
+		} else
+		if (clk_same(perflvl->dom6, read_clk(dev, clk_src_hclk))) {
+			info->amast |= 0x08000000;
+		} else {
+			clk = read_clk(dev, clk_src_hclk) * 3;
+			clk = calc_div(clk, perflvl->dom6, &P1);
+
+			info->amast |= 0x0c000000;
+			info->pdivs  = (info->pdivs & ~0x00000007) | P1;
+		}
 	}
 
-	ret = nv50_calc_pll(dev, &state->pll, khz, &state->N, &state->M,
-			    &dummy, &dummy, &state->P);
-	if (ret < 0) {
-		kfree(state);
-		return ERR_PTR(ret);
+	return info;
+error:
+	kfree(info);
+	return ERR_PTR(ret);
+}
+
+static int
+prog_mclk(struct drm_device *dev, struct hwsq_ucode *hwsq)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	u32 hwsq_data, hwsq_kick;
+	int i;
+
+	if (dev_priv->chipset < 0x90) {
+		hwsq_data = 0x001400;
+		hwsq_kick = 0x00000003;
+	} else {
+		hwsq_data = 0x080000;
+		hwsq_kick = 0x00000001;
 	}
 
-	return state;
+	/* upload hwsq ucode */
+	nv_mask(dev, 0x001098, 0x00000008, 0x00000000);
+	nv_wr32(dev, 0x001304, 0x00000000);
+	for (i = 0; i < hwsq->len / 4; i++)
+		nv_wr32(dev, hwsq_data + (i * 4), hwsq->ptr.u32[i]);
+	nv_mask(dev, 0x001098, 0x00000018, 0x00000018);
+
+	/* launch, and wait for completion */
+	nv_wr32(dev, 0x00130c, hwsq_kick);
+	if (!nv_wait(dev, 0x001308, 0x00000100, 0x00000000)) {
+		NV_ERROR(dev, "hwsq ucode exec timed out\n");
+		NV_ERROR(dev, "0x001308: 0x%08x\n", nv_rd32(dev, 0x001308));
+		for (i = 0; i < hwsq->len / 4; i++) {
+			NV_ERROR(dev, "0x%06x: 0x%08x\n", 0x1400 + (i * 4),
+				 nv_rd32(dev, 0x001400 + (i * 4)));
+		}
+
+		return -EIO;
+	}
+
+	return 0;
 }
 
-void
-nv50_pm_clock_set(struct drm_device *dev, void *pre_state)
+int
+nv50_pm_clocks_set(struct drm_device *dev, void *data)
 {
-	struct nv50_pm_state *state = pre_state;
-	struct nouveau_pm_level *perflvl = state->perflvl;
-	u32 reg = state->pll.reg, tmp;
-	struct bit_entry BIT_M;
-	u16 script;
-	int N = state->N;
-	int M = state->M;
-	int P = state->P;
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nv50_pm_state *info = data;
+	struct bit_entry M;
+	int ret = 0;
 
-	if (state->type == PLL_MEMORY && perflvl->memscript &&
-	    bit_table(dev, 'M', &BIT_M) == 0 &&
-	    BIT_M.version == 1 && BIT_M.length >= 0x0b) {
-		script = ROM16(BIT_M.data[0x05]);
-		if (script)
-			nouveau_bios_run_init_table(dev, script, NULL, -1);
-		script = ROM16(BIT_M.data[0x07]);
-		if (script)
-			nouveau_bios_run_init_table(dev, script, NULL, -1);
-		script = ROM16(BIT_M.data[0x09]);
-		if (script)
-			nouveau_bios_run_init_table(dev, script, NULL, -1);
+	/* halt and idle execution engines */
+	nv_mask(dev, 0x002504, 0x00000001, 0x00000001);
+	if (!nv_wait(dev, 0x002504, 0x00000010, 0x00000010))
+		goto error;
 
-		nouveau_bios_run_init_table(dev, perflvl->memscript, NULL, -1);
+	/* memory: it is *very* important we change this first, the ucode
+	 * we build in pre() now has hardcoded 0xc040 values, which can't
+	 * change before we execute it or the engine clocks may end up
+	 * messed up.
+	 */
+	if (info->mclk_hwsq.len) {
+		/* execute some scripts that do ??? from the vbios.. */
+		if (!bit_table(dev, 'M', &M) && M.version == 1) {
+			if (M.length >= 6)
+				nouveau_bios_init_exec(dev, ROM16(M.data[5]));
+			if (M.length >= 8)
+				nouveau_bios_init_exec(dev, ROM16(M.data[7]));
+			if (M.length >= 10)
+				nouveau_bios_init_exec(dev, ROM16(M.data[9]));
+			nouveau_bios_init_exec(dev, info->mscript);
+		}
+
+		ret = prog_mclk(dev, &info->mclk_hwsq);
+		if (ret)
+			goto resume;
 	}
 
-	if (state->type == PLL_MEMORY) {
-		nv_wr32(dev, 0x100210, 0);
-		nv_wr32(dev, 0x1002dc, 1);
+	/* reclock vdec/dom6 */
+	nv_mask(dev, 0x00c040, 0x00000c00, 0x00000000);
+	switch (dev_priv->chipset) {
+	case 0x92:
+	case 0x94:
+	case 0x96:
+		nv_mask(dev, 0x004800, 0x00000707, info->pdivs);
+		break;
+	default:
+		nv_mask(dev, 0x004700, 0x00000707, info->pdivs);
+		break;
 	}
+	nv_mask(dev, 0x00c040, 0x0c000c00, info->amast);
 
-	tmp  = nv_rd32(dev, reg + 0) & 0xfff8ffff;
-	tmp |= 0x80000000 | (P << 16);
-	nv_wr32(dev, reg + 0, tmp);
-	nv_wr32(dev, reg + 4, (N << 8) | M);
+	/* core/shader: make sure sclk/nvclk are disconnected from their
+	 * plls (nvclk to dom6, sclk to hclk), modify the plls, and
+	 * reconnect sclk/nvclk to their new clock source
+	 */
+	if (dev_priv->chipset < 0x92)
+		nv_mask(dev, 0x00c040, 0x001000b0, 0x00100080); /* grrr! */
+	else
+		nv_mask(dev, 0x00c040, 0x000000b3, 0x00000081);
+	nv_mask(dev, 0x004020, 0xc03f0100, info->sctrl);
+	nv_wr32(dev, 0x004024, info->scoef);
+	nv_mask(dev, 0x004028, 0xc03f0100, info->nctrl);
+	nv_wr32(dev, 0x00402c, info->ncoef);
+	nv_mask(dev, 0x00c040, 0x00100033, info->emast);
+
+	goto resume;
+error:
+	ret = -EBUSY;
+resume:
+	nv_mask(dev, 0x002504, 0x00000001, 0x00000000);
+	kfree(info);
+	return ret;
+}
 
-	if (state->type == PLL_MEMORY) {
-		nv_wr32(dev, 0x1002dc, 0);
-		nv_wr32(dev, 0x100210, 0x80000000);
+static int
+pwm_info(struct drm_device *dev, int *line, int *ctrl, int *indx)
+{
+	if (*line == 0x04) {
+		*ctrl = 0x00e100;
+		*line = 4;
+		*indx = 0;
+	} else
+	if (*line == 0x09) {
+		*ctrl = 0x00e100;
+		*line = 9;
+		*indx = 1;
+	} else
+	if (*line == 0x10) {
+		*ctrl = 0x00e28c;
+		*line = 0;
+		*indx = 0;
+	} else {
+		NV_ERROR(dev, "unknown pwm ctrl for gpio %d\n", *line);
+		return -ENODEV;
+	}
+
+	return 0;
+}
+
+int
+nv50_pm_pwm_get(struct drm_device *dev, int line, u32 *divs, u32 *duty)
+{
+	int ctrl, id, ret = pwm_info(dev, &line, &ctrl, &id);
+	if (ret)
+		return ret;
+
+	if (nv_rd32(dev, ctrl) & (1 << line)) {
+		*divs = nv_rd32(dev, 0x00e114 + (id * 8));
+		*duty = nv_rd32(dev, 0x00e118 + (id * 8));
+		return 0;
 	}
 
-	kfree(state);
+	return -EINVAL;
 }
 
+int
+nv50_pm_pwm_set(struct drm_device *dev, int line, u32 divs, u32 duty)
+{
+	int ctrl, id, ret = pwm_info(dev, &line, &ctrl, &id);
+	if (ret)
+		return ret;
+
+	nv_mask(dev, ctrl, 0x00010001 << line, 0x00000001 << line);
+	nv_wr32(dev, 0x00e114 + (id * 8), divs);
+	nv_wr32(dev, 0x00e118 + (id * 8), duty | 0x80000000);
+	return 0;
+}
diff --git a/drivers/gpu/drm/nouveau/nv50_sor.c b/drivers/gpu/drm/nouveau/nv50_sor.c
index 2633aa8554eb..c4423ba9c9bf 100644
--- a/drivers/gpu/drm/nouveau/nv50_sor.c
+++ b/drivers/gpu/drm/nouveau/nv50_sor.c
@@ -60,6 +60,8 @@ nv50_sor_disconnect(struct drm_encoder *encoder)
 	BEGIN_RING(evo, 0, NV50_EVO_UPDATE, 1);
 	OUT_RING  (evo, 0);
 
+	nouveau_hdmi_mode_set(encoder, NULL);
+
 	nv_encoder->crtc = NULL;
 	nv_encoder->last_dpms = DRM_MODE_DPMS_OFF;
 }
@@ -172,6 +174,12 @@ nv50_sor_mode_fixup(struct drm_encoder *encoder, struct drm_display_mode *mode,
 static void
 nv50_sor_prepare(struct drm_encoder *encoder)
 {
+	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
+	nv50_sor_disconnect(encoder);
+	if (nv_encoder->dcb->type == OUTPUT_DP) {
+		/* avoid race between link training and supervisor intr */
+		nv50_display_sync(encoder->dev);
+	}
 }
 
 static void
@@ -180,8 +188,8 @@ nv50_sor_commit(struct drm_encoder *encoder)
 }
 
 static void
-nv50_sor_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode,
-		  struct drm_display_mode *adjusted_mode)
+nv50_sor_mode_set(struct drm_encoder *encoder, struct drm_display_mode *umode,
+		  struct drm_display_mode *mode)
 {
 	struct nouveau_channel *evo = nv50_display(encoder->dev)->master;
 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
@@ -193,24 +201,27 @@ nv50_sor_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode,
 
 	NV_DEBUG_KMS(dev, "or %d type %d -> crtc %d\n",
 		     nv_encoder->or, nv_encoder->dcb->type, crtc->index);
+	nv_encoder->crtc = encoder->crtc;
 
 	switch (nv_encoder->dcb->type) {
 	case OUTPUT_TMDS:
 		if (nv_encoder->dcb->sorconf.link & 1) {
-			if (adjusted_mode->clock < 165000)
+			if (mode->clock < 165000)
 				mode_ctl = 0x0100;
 			else
 				mode_ctl = 0x0500;
 		} else
 			mode_ctl = 0x0200;
+
+		nouveau_hdmi_mode_set(encoder, mode);
 		break;
 	case OUTPUT_DP:
 		nv_connector = nouveau_encoder_connector_get(nv_encoder);
 		if (nv_connector && nv_connector->base.display_info.bpc == 6) {
-			nv_encoder->dp.datarate = crtc->mode->clock * 18 / 8;
+			nv_encoder->dp.datarate = mode->clock * 18 / 8;
 			mode_ctl |= 0x00020000;
 		} else {
-			nv_encoder->dp.datarate = crtc->mode->clock * 24 / 8;
+			nv_encoder->dp.datarate = mode->clock * 24 / 8;
 			mode_ctl |= 0x00050000;
 		}
 
@@ -228,10 +239,10 @@ nv50_sor_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode,
 	else
 		mode_ctl |= NV50_EVO_SOR_MODE_CTRL_CRTC0;
 
-	if (adjusted_mode->flags & DRM_MODE_FLAG_NHSYNC)
+	if (mode->flags & DRM_MODE_FLAG_NHSYNC)
 		mode_ctl |= NV50_EVO_SOR_MODE_CTRL_NHSYNC;
 
-	if (adjusted_mode->flags & DRM_MODE_FLAG_NVSYNC)
+	if (mode->flags & DRM_MODE_FLAG_NVSYNC)
 		mode_ctl |= NV50_EVO_SOR_MODE_CTRL_NVSYNC;
 
 	nv50_sor_dpms(encoder, DRM_MODE_DPMS_ON);
@@ -239,12 +250,11 @@ nv50_sor_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode,
 	ret = RING_SPACE(evo, 2);
 	if (ret) {
 		NV_ERROR(dev, "no space while connecting SOR\n");
+		nv_encoder->crtc = NULL;
 		return;
 	}
 	BEGIN_RING(evo, 0, NV50_EVO_SOR(nv_encoder->or, MODE_CTRL), 1);
 	OUT_RING(evo, mode_ctl);
-
-	nv_encoder->crtc = encoder->crtc;
 }
 
 static struct drm_crtc *
diff --git a/drivers/gpu/drm/nouveau/nv50_vm.c b/drivers/gpu/drm/nouveau/nv50_vm.c
index 40b84f22d819..6f38ceae3aa4 100644
--- a/drivers/gpu/drm/nouveau/nv50_vm.c
+++ b/drivers/gpu/drm/nouveau/nv50_vm.c
@@ -48,7 +48,7 @@ nv50_vm_map_pgt(struct nouveau_gpuobj *pgd, u32 pde,
 			phys |= 0x60;
 		else if (coverage <= 64 * 1024 * 1024)
 			phys |= 0x40;
-		else if (coverage < 128 * 1024 * 1024)
+		else if (coverage <= 128 * 1024 * 1024)
 			phys |= 0x20;
 	}
 
diff --git a/drivers/gpu/drm/nouveau/nv84_bsp.c b/drivers/gpu/drm/nouveau/nv84_bsp.c
new file mode 100644
index 000000000000..74875739bcc0
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nv84_bsp.c
@@ -0,0 +1,83 @@
+/*
+ * Copyright 2011 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+
+#include "drmP.h"
+#include "nouveau_drv.h"
+#include "nouveau_util.h"
+#include "nouveau_vm.h"
+#include "nouveau_ramht.h"
+
+/*XXX: This stub is currently used on NV98+ also, as soon as this becomes
+ *     more than just an enable/disable stub this needs to be split out to
+ *     nv98_bsp.c...
+ */
+
+struct nv84_bsp_engine {
+	struct nouveau_exec_engine base;
+};
+
+static int
+nv84_bsp_fini(struct drm_device *dev, int engine, bool suspend)
+{
+	if (!(nv_rd32(dev, 0x000200) & 0x00008000))
+		return 0;
+
+	nv_mask(dev, 0x000200, 0x00008000, 0x00000000);
+	return 0;
+}
+
+static int
+nv84_bsp_init(struct drm_device *dev, int engine)
+{
+	nv_mask(dev, 0x000200, 0x00008000, 0x00000000);
+	nv_mask(dev, 0x000200, 0x00008000, 0x00008000);
+	return 0;
+}
+
+static void
+nv84_bsp_destroy(struct drm_device *dev, int engine)
+{
+	struct nv84_bsp_engine *pbsp = nv_engine(dev, engine);
+
+	NVOBJ_ENGINE_DEL(dev, BSP);
+
+	kfree(pbsp);
+}
+
+int
+nv84_bsp_create(struct drm_device *dev)
+{
+	struct nv84_bsp_engine *pbsp;
+
+	pbsp = kzalloc(sizeof(*pbsp), GFP_KERNEL);
+	if (!pbsp)
+		return -ENOMEM;
+
+	pbsp->base.destroy = nv84_bsp_destroy;
+	pbsp->base.init = nv84_bsp_init;
+	pbsp->base.fini = nv84_bsp_fini;
+
+	NVOBJ_ENGINE_ADD(dev, BSP, &pbsp->base);
+	return 0;
+}
diff --git a/drivers/gpu/drm/nouveau/nv84_vp.c b/drivers/gpu/drm/nouveau/nv84_vp.c
new file mode 100644
index 000000000000..6570d300ab85
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nv84_vp.c
@@ -0,0 +1,83 @@
+/*
+ * Copyright 2011 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+
+#include "drmP.h"
+#include "nouveau_drv.h"
+#include "nouveau_util.h"
+#include "nouveau_vm.h"
+#include "nouveau_ramht.h"
+
+/*XXX: This stub is currently used on NV98+ also, as soon as this becomes
+ *     more than just an enable/disable stub this needs to be split out to
+ *     nv98_vp.c...
+ */
+
+struct nv84_vp_engine {
+	struct nouveau_exec_engine base;
+};
+
+static int
+nv84_vp_fini(struct drm_device *dev, int engine, bool suspend)
+{
+	if (!(nv_rd32(dev, 0x000200) & 0x00020000))
+		return 0;
+
+	nv_mask(dev, 0x000200, 0x00020000, 0x00000000);
+	return 0;
+}
+
+static int
+nv84_vp_init(struct drm_device *dev, int engine)
+{
+	nv_mask(dev, 0x000200, 0x00020000, 0x00000000);
+	nv_mask(dev, 0x000200, 0x00020000, 0x00020000);
+	return 0;
+}
+
+static void
+nv84_vp_destroy(struct drm_device *dev, int engine)
+{
+	struct nv84_vp_engine *pvp = nv_engine(dev, engine);
+
+	NVOBJ_ENGINE_DEL(dev, VP);
+
+	kfree(pvp);
+}
+
+int
+nv84_vp_create(struct drm_device *dev)
+{
+	struct nv84_vp_engine *pvp;
+
+	pvp = kzalloc(sizeof(*pvp), GFP_KERNEL);
+	if (!pvp)
+		return -ENOMEM;
+
+	pvp->base.destroy = nv84_vp_destroy;
+	pvp->base.init = nv84_vp_init;
+	pvp->base.fini = nv84_vp_fini;
+
+	NVOBJ_ENGINE_ADD(dev, VP, &pvp->base);
+	return 0;
+}
diff --git a/drivers/gpu/drm/nouveau/nv98_crypt.c b/drivers/gpu/drm/nouveau/nv98_crypt.c
new file mode 100644
index 000000000000..db94ff0a9fab
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nv98_crypt.c
@@ -0,0 +1,78 @@
+/*
+ * Copyright 2011 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+
+#include "drmP.h"
+#include "nouveau_drv.h"
+#include "nouveau_util.h"
+#include "nouveau_vm.h"
+#include "nouveau_ramht.h"
+
+struct nv98_crypt_engine {
+	struct nouveau_exec_engine base;
+};
+
+static int
+nv98_crypt_fini(struct drm_device *dev, int engine, bool suspend)
+{
+	if (!(nv_rd32(dev, 0x000200) & 0x00004000))
+		return 0;
+
+	nv_mask(dev, 0x000200, 0x00004000, 0x00000000);
+	return 0;
+}
+
+static int
+nv98_crypt_init(struct drm_device *dev, int engine)
+{
+	nv_mask(dev, 0x000200, 0x00004000, 0x00000000);
+	nv_mask(dev, 0x000200, 0x00004000, 0x00004000);
+	return 0;
+}
+
+static void
+nv98_crypt_destroy(struct drm_device *dev, int engine)
+{
+	struct nv98_crypt_engine *pcrypt = nv_engine(dev, engine);
+
+	NVOBJ_ENGINE_DEL(dev, CRYPT);
+
+	kfree(pcrypt);
+}
+
+int
+nv98_crypt_create(struct drm_device *dev)
+{
+	struct nv98_crypt_engine *pcrypt;
+
+	pcrypt = kzalloc(sizeof(*pcrypt), GFP_KERNEL);
+	if (!pcrypt)
+		return -ENOMEM;
+
+	pcrypt->base.destroy = nv98_crypt_destroy;
+	pcrypt->base.init = nv98_crypt_init;
+	pcrypt->base.fini = nv98_crypt_fini;
+
+	NVOBJ_ENGINE_ADD(dev, CRYPT, &pcrypt->base);
+	return 0;
+}
diff --git a/drivers/gpu/drm/nouveau/nv98_ppp.c b/drivers/gpu/drm/nouveau/nv98_ppp.c
new file mode 100644
index 000000000000..a987dd6e0036
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nv98_ppp.c
@@ -0,0 +1,78 @@
+/*
+ * Copyright 2011 Red Hat Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Ben Skeggs
+ */
+
+#include "drmP.h"
+#include "nouveau_drv.h"
+#include "nouveau_util.h"
+#include "nouveau_vm.h"
+#include "nouveau_ramht.h"
+
+struct nv98_ppp_engine {
+	struct nouveau_exec_engine base;
+};
+
+static int
+nv98_ppp_fini(struct drm_device *dev, int engine, bool suspend)
+{
+	if (!(nv_rd32(dev, 0x000200) & 0x00000002))
+		return 0;
+
+	nv_mask(dev, 0x000200, 0x00000002, 0x00000000);
+	return 0;
+}
+
+static int
+nv98_ppp_init(struct drm_device *dev, int engine)
+{
+	nv_mask(dev, 0x000200, 0x00000002, 0x00000000);
+	nv_mask(dev, 0x000200, 0x00000002, 0x00000002);
+	return 0;
+}
+
+static void
+nv98_ppp_destroy(struct drm_device *dev, int engine)
+{
+	struct nv98_ppp_engine *pppp = nv_engine(dev, engine);
+
+	NVOBJ_ENGINE_DEL(dev, PPP);
+
+	kfree(pppp);
+}
+
+int
+nv98_ppp_create(struct drm_device *dev)
+{
+	struct nv98_ppp_engine *pppp;
+
+	pppp = kzalloc(sizeof(*pppp), GFP_KERNEL);
+	if (!pppp)
+		return -ENOMEM;
+
+	pppp->base.destroy = nv98_ppp_destroy;
+	pppp->base.init = nv98_ppp_init;
+	pppp->base.fini = nv98_ppp_fini;
+
+	NVOBJ_ENGINE_ADD(dev, PPP, &pppp->base);
+	return 0;
+}
diff --git a/drivers/gpu/drm/nouveau/nva3_copy.fuc b/drivers/gpu/drm/nouveau/nva3_copy.fuc
index eaf35f8321ee..abc36626fef0 100644
--- a/drivers/gpu/drm/nouveau/nva3_copy.fuc
+++ b/drivers/gpu/drm/nouveau/nva3_copy.fuc
@@ -31,8 +31,9 @@
  */
 
 ifdef(`NVA3',
-.section nva3_pcopy_data,
-.section nvc0_pcopy_data
+.section #nva3_pcopy_data
+,
+.section #nvc0_pcopy_data
 )
 
 ctx_object:                   .b32 0
@@ -42,7 +43,7 @@ ctx_dma_query:                .b32 0
 ctx_dma_src:                  .b32 0
 ctx_dma_dst:                  .b32 0
 ,)
-.equ ctx_dma_count 3
+.equ #ctx_dma_count 3
 ctx_query_address_high:       .b32 0
 ctx_query_address_low:        .b32 0
 ctx_query_counter:            .b32 0
@@ -78,64 +79,65 @@ ctx_ycnt:                     .b32 0
 dispatch_table:
 // mthd 0x0000, NAME
 .b16 0x000 1
-.b32 ctx_object                     ~0xffffffff
+.b32 #ctx_object                     ~0xffffffff
 // mthd 0x0100, NOP
 .b16 0x040 1
-.b32 0x00010000 + cmd_nop           ~0xffffffff
+.b32 0x00010000 + #cmd_nop           ~0xffffffff
 // mthd 0x0140, PM_TRIGGER
 .b16 0x050 1
-.b32 0x00010000 + cmd_pm_trigger    ~0xffffffff
+.b32 0x00010000 + #cmd_pm_trigger    ~0xffffffff
 ifdef(`NVA3', `
 // mthd 0x0180-0x018c, DMA_
-.b16 0x060 ctx_dma_count
+.b16 0x060 #ctx_dma_count
 dispatch_dma:
-.b32 0x00010000 + cmd_dma           ~0xffffffff
-.b32 0x00010000 + cmd_dma           ~0xffffffff
-.b32 0x00010000 + cmd_dma           ~0xffffffff
+.b32 0x00010000 + #cmd_dma           ~0xffffffff
+.b32 0x00010000 + #cmd_dma           ~0xffffffff
+.b32 0x00010000 + #cmd_dma           ~0xffffffff
 ',)
 // mthd 0x0200-0x0218, SRC_TILE
 .b16 0x80 7
-.b32 ctx_src_tile_mode              ~0x00000fff
-.b32 ctx_src_xsize                  ~0x0007ffff
-.b32 ctx_src_ysize                  ~0x00001fff
-.b32 ctx_src_zsize                  ~0x000007ff
-.b32 ctx_src_zoff                   ~0x00000fff
-.b32 ctx_src_xoff                   ~0x0007ffff
-.b32 ctx_src_yoff                   ~0x00001fff
+.b32 #ctx_src_tile_mode              ~0x00000fff
+.b32 #ctx_src_xsize                  ~0x0007ffff
+.b32 #ctx_src_ysize                  ~0x00001fff
+.b32 #ctx_src_zsize                  ~0x000007ff
+.b32 #ctx_src_zoff                   ~0x00000fff
+.b32 #ctx_src_xoff                   ~0x0007ffff
+.b32 #ctx_src_yoff                   ~0x00001fff
 // mthd 0x0220-0x0238, DST_TILE
 .b16 0x88 7
-.b32 ctx_dst_tile_mode              ~0x00000fff
-.b32 ctx_dst_xsize                  ~0x0007ffff
-.b32 ctx_dst_ysize                  ~0x00001fff
-.b32 ctx_dst_zsize                  ~0x000007ff
-.b32 ctx_dst_zoff                   ~0x00000fff
-.b32 ctx_dst_xoff                   ~0x0007ffff
-.b32 ctx_dst_yoff                   ~0x00001fff
+.b32 #ctx_dst_tile_mode              ~0x00000fff
+.b32 #ctx_dst_xsize                  ~0x0007ffff
+.b32 #ctx_dst_ysize                  ~0x00001fff
+.b32 #ctx_dst_zsize                  ~0x000007ff
+.b32 #ctx_dst_zoff                   ~0x00000fff
+.b32 #ctx_dst_xoff                   ~0x0007ffff
+.b32 #ctx_dst_yoff                   ~0x00001fff
 // mthd 0x0300-0x0304, EXEC, WRCACHE_FLUSH
 .b16 0xc0 2
-.b32 0x00010000 + cmd_exec          ~0xffffffff
-.b32 0x00010000 + cmd_wrcache_flush ~0xffffffff
+.b32 0x00010000 + #cmd_exec          ~0xffffffff
+.b32 0x00010000 + #cmd_wrcache_flush ~0xffffffff
 // mthd 0x030c-0x0340, various stuff
 .b16 0xc3 14
-.b32 ctx_src_address_high           ~0x000000ff
-.b32 ctx_src_address_low            ~0xfffffff0
-.b32 ctx_dst_address_high           ~0x000000ff
-.b32 ctx_dst_address_low            ~0xfffffff0
-.b32 ctx_src_pitch                  ~0x0007ffff
-.b32 ctx_dst_pitch                  ~0x0007ffff
-.b32 ctx_xcnt                       ~0x0000ffff
-.b32 ctx_ycnt                       ~0x00001fff
-.b32 ctx_format                     ~0x0333ffff
-.b32 ctx_swz_const0                 ~0xffffffff
-.b32 ctx_swz_const1                 ~0xffffffff
-.b32 ctx_query_address_high         ~0x000000ff
-.b32 ctx_query_address_low          ~0xffffffff
-.b32 ctx_query_counter              ~0xffffffff
+.b32 #ctx_src_address_high           ~0x000000ff
+.b32 #ctx_src_address_low            ~0xfffffff0
+.b32 #ctx_dst_address_high           ~0x000000ff
+.b32 #ctx_dst_address_low            ~0xfffffff0
+.b32 #ctx_src_pitch                  ~0x0007ffff
+.b32 #ctx_dst_pitch                  ~0x0007ffff
+.b32 #ctx_xcnt                       ~0x0000ffff
+.b32 #ctx_ycnt                       ~0x00001fff
+.b32 #ctx_format                     ~0x0333ffff
+.b32 #ctx_swz_const0                 ~0xffffffff
+.b32 #ctx_swz_const1                 ~0xffffffff
+.b32 #ctx_query_address_high         ~0x000000ff
+.b32 #ctx_query_address_low          ~0xffffffff
+.b32 #ctx_query_counter              ~0xffffffff
 .b16 0x800 0
 
 ifdef(`NVA3',
-.section nva3_pcopy_code,
-.section nvc0_pcopy_code
+.section #nva3_pcopy_code
+,
+.section #nvc0_pcopy_code
 )
 
 main:
@@ -143,12 +145,12 @@ main:
    mov $sp $r0
 
    // setup i0 handler and route fifo and ctxswitch to it
-   mov $r1 ih
+   mov $r1 #ih
    mov $iv0 $r1
    mov $r1 0x400
    movw $r2 0xfff3
    sethi $r2 0
-   iowr I[$r2 + 0x300] $r2
+   iowr I[$r1 + 0x300] $r2
 
    // enable interrupts
    or $r2 0xc
@@ -164,19 +166,19 @@ main:
    bset $flags $p0
    spin:
       sleep $p0
-      bra spin
+      bra #spin
 
 // i0 handler
 ih:
    iord $r1 I[$r0 + 0x200]
 
    and $r2 $r1 0x00000008
-   bra e ih_no_chsw
-      call chsw
+   bra e #ih_no_chsw
+      call #chsw
    ih_no_chsw:
    and $r2 $r1 0x00000004
-   bra e ih_no_cmd
-      call dispatch
+   bra e #ih_no_cmd
+      call #dispatch
 
    ih_no_cmd:
    and $r1 $r1 0x0000000c
@@ -235,9 +237,9 @@ ifdef(`NVA3', `
    sethi $r4 0x60000
 
    // swap!
-   bra $p1 swctx_load
+   bra $p1 #swctx_load
       xdst $r0 $r4
-      bra swctx_done
+      bra #swctx_done
    swctx_load:
       xdld $r0 $r4
    swctx_done:
@@ -251,9 +253,9 @@ chsw:
 
    // if it's active, unload it and return
    xbit $r15 $r3 0x1e
-   bra e chsw_no_unload
+   bra e #chsw_no_unload
       bclr $flags $p1
-      call swctx
+      call #swctx
       bclr $r3 0x1e
       iowr I[$r2] $r3
       mov $r4 1
@@ -266,20 +268,20 @@ chsw:
 
    // is there a channel waiting to be loaded?
    xbit $r13 $r3 0x1e
-   bra e chsw_finish_load
+   bra e #chsw_finish_load
       bset $flags $p1
-      call swctx
+      call #swctx
 ifdef(`NVA3',
       // load dma objects back into TARGET regs
-      mov $r5 ctx_dma
-      mov $r6 ctx_dma_count
+      mov $r5 #ctx_dma
+      mov $r6 #ctx_dma_count
       chsw_load_ctx_dma:
          ld b32 $r7 D[$r5 + $r6 * 4]
          add b32 $r8 $r6 0x180
          shl b32 $r8 8
          iowr I[$r8] $r7
          sub b32 $r6 1
-         bra nc chsw_load_ctx_dma
+         bra nc #chsw_load_ctx_dma
 ,)
 
    chsw_finish_load:
@@ -297,7 +299,7 @@ dispatch:
    shl b32 $r2 0x10
 
    // lookup method in the dispatch table, ILLEGAL_MTHD if not found
-   mov $r5 dispatch_table
+   mov $r5 #dispatch_table
    clear b32 $r6
    clear b32 $r7
    dispatch_loop:
@@ -305,14 +307,14 @@ dispatch:
       ld b16 $r7 D[$r5 + 2]
       add b32 $r5 4
       cmpu b32 $r4 $r6
-      bra c dispatch_illegal_mthd
+      bra c #dispatch_illegal_mthd
       add b32 $r7 $r6
       cmpu b32 $r4 $r7
-      bra c dispatch_valid_mthd
+      bra c #dispatch_valid_mthd
       sub b32 $r7 $r6
       shl b32 $r7 3
       add b32 $r5 $r7
-      bra dispatch_loop
+      bra #dispatch_loop
 
    // ensure no bits set in reserved fields, INVALID_BITFIELD
    dispatch_valid_mthd:
@@ -322,20 +324,20 @@ dispatch:
    ld b32 $r5 D[$r4 + 4]
    and $r5 $r3
    cmpu b32 $r5 0
-   bra ne dispatch_invalid_bitfield
+   bra ne #dispatch_invalid_bitfield
 
    // depending on dispatch flags: execute method, or save data as state
    ld b16 $r5 D[$r4 + 0]
    ld b16 $r6 D[$r4 + 2]
    cmpu b32 $r6 0
-   bra ne dispatch_cmd
+   bra ne #dispatch_cmd
       st b32 D[$r5] $r3
-      bra dispatch_done
+      bra #dispatch_done
    dispatch_cmd:
       bclr $flags $p1
       call $r5
-      bra $p1 dispatch_error
-      bra dispatch_done
+      bra $p1 #dispatch_error
+      bra #dispatch_done
 
    dispatch_invalid_bitfield:
    or $r2 2
@@ -353,7 +355,7 @@ dispatch:
       iord $r2 I[$r0 + 0x200]
       and $r2 0x40
       cmpu b32 $r2 0
-      bra ne hostirq_wait
+      bra ne #hostirq_wait
 
    dispatch_done:
    mov $r2 0x1d00
@@ -409,10 +411,10 @@ ifdef(`NVA3',
 //       $r2: hostirq state
 //       $r3: data
 cmd_dma:
-   sub b32 $r4 dispatch_dma
+   sub b32 $r4 #dispatch_dma
    shr b32 $r4 1
    bset $r3 0x1e
-   st b32 D[$r4 + ctx_dma] $r3
+   st b32 D[$r4 + #ctx_dma] $r3
    add b32 $r4 0x600
    shl b32 $r4 6
    iowr I[$r4] $r3
@@ -430,7 +432,7 @@ cmd_exec_set_format:
    st b32 D[$sp + 0x0c] $r0
 
    // extract cpp, src_ncomp and dst_ncomp from FORMAT
-   ld b32 $r4 D[$r0 + ctx_format]
+   ld b32 $r4 D[$r0 + #ctx_format]
    extr $r5 $r4 16:17
    add b32 $r5 1
    extr $r6 $r4 20:21
@@ -448,22 +450,22 @@ cmd_exec_set_format:
       clear b32 $r11
       bpc_loop:
          cmpu b8 $r10 4
-         bra nc cmp_c0
+         bra nc #cmp_c0
             mulu $r12 $r10 $r5
             add b32 $r12 $r11
             bset $flags $p2
-            bra bpc_next
+            bra #bpc_next
          cmp_c0:
-         bra ne cmp_c1
+         bra ne #cmp_c1
             mov $r12 0x10
             add b32 $r12 $r11
-            bra bpc_next
+            bra #bpc_next
          cmp_c1:
          cmpu b8 $r10 6
-         bra nc cmp_zero
+         bra nc #cmp_zero
             mov $r12 0x14
             add b32 $r12 $r11
-            bra bpc_next
+            bra #bpc_next
          cmp_zero:
             mov $r12 0x80
          bpc_next:
@@ -471,22 +473,22 @@ cmd_exec_set_format:
          add b32 $r8 1
          add b32 $r11 1
          cmpu b32 $r11 $r5
-         bra c bpc_loop
+         bra c #bpc_loop
       add b32 $r9 1
       cmpu b32 $r9 $r7
-      bra c ncomp_loop
+      bra c #ncomp_loop
 
    // SRC_XCNT = (xcnt * src_cpp), or 0 if no src ref in swz (hw will hang)
    mulu $r6 $r5
-   st b32 D[$r0 + ctx_src_cpp] $r6
-   ld b32 $r8 D[$r0 + ctx_xcnt]
+   st b32 D[$r0 + #ctx_src_cpp] $r6
+   ld b32 $r8 D[$r0 + #ctx_xcnt]
    mulu $r6 $r8
-   bra $p2 dst_xcnt
+   bra $p2 #dst_xcnt
    clear b32 $r6
 
    dst_xcnt:
    mulu $r7 $r5
-   st b32 D[$r0 + ctx_dst_cpp] $r7
+   st b32 D[$r0 + #ctx_dst_cpp] $r7
    mulu $r7 $r8
 
    mov $r5 0x810
@@ -494,10 +496,10 @@ cmd_exec_set_format:
    iowr I[$r5 + 0x000] $r6
    iowr I[$r5 + 0x100] $r7
    add b32 $r5 0x800
-   ld b32 $r6 D[$r0 + ctx_dst_cpp]
+   ld b32 $r6 D[$r0 + #ctx_dst_cpp]
    sub b32 $r6 1
    shl b32 $r6 8
-   ld b32 $r7 D[$r0 + ctx_src_cpp]
+   ld b32 $r7 D[$r0 + #ctx_src_cpp]
    sub b32 $r7 1
    or $r6 $r7
    iowr I[$r5 + 0x000] $r6
@@ -511,9 +513,9 @@ cmd_exec_set_format:
    ld b32 $r6 D[$sp + 0x0c]
    iowr I[$r5 + 0x300] $r6
    add b32 $r5 0x400
-   ld b32 $r6 D[$r0 + ctx_swz_const0]
+   ld b32 $r6 D[$r0 + #ctx_swz_const0]
    iowr I[$r5 + 0x000] $r6
-   ld b32 $r6 D[$r0 + ctx_swz_const1]
+   ld b32 $r6 D[$r0 + #ctx_swz_const1]
    iowr I[$r5 + 0x100] $r6
    add $sp 0x10
    ret
@@ -543,7 +545,7 @@ cmd_exec_set_format:
 //
 cmd_exec_set_surface_tiled:
    // translate TILE_MODE into Tp, Th, Td shift values
-   ld b32 $r7 D[$r5 + ctx_src_tile_mode]
+   ld b32 $r7 D[$r5 + #ctx_src_tile_mode]
    extr $r9 $r7 8:11
    extr $r8 $r7 4:7
 ifdef(`NVA3',
@@ -553,9 +555,9 @@ ifdef(`NVA3',
 )
    extr $r7 $r7 0:3
    cmp b32 $r7 0xe
-   bra ne xtile64
+   bra ne #xtile64
    mov $r7 4
-   bra xtileok
+   bra #xtileok
    xtile64:
    xbit $r7 $flags $p2
    add b32 $r7 17
@@ -565,8 +567,8 @@ ifdef(`NVA3',
 
    // Op = (x * cpp) & ((1 << Tp) - 1)
    // Tx = (x * cpp) >> Tp
-   ld b32 $r10 D[$r5 + ctx_src_xoff]
-   ld b32 $r11 D[$r5 + ctx_src_cpp]
+   ld b32 $r10 D[$r5 + #ctx_src_xoff]
+   ld b32 $r11 D[$r5 + #ctx_src_cpp]
    mulu $r10 $r11
    mov $r11 1
    shl b32 $r11 $r7
@@ -576,7 +578,7 @@ ifdef(`NVA3',
 
    // Tyo = y & ((1 << Th) - 1)
    // Ty  = y >> Th
-   ld b32 $r13 D[$r5 + ctx_src_yoff]
+   ld b32 $r13 D[$r5 + #ctx_src_yoff]
    mov $r14 1
    shl b32 $r14 $r8
    sub b32 $r14 1
@@ -598,8 +600,8 @@ ifdef(`NVA3',
    add b32 $r12 $r11
 
    // nTx = ((w * cpp) + ((1 << Tp) - 1) >> Tp)
-   ld b32 $r15 D[$r5 + ctx_src_xsize]
-   ld b32 $r11 D[$r5 + ctx_src_cpp]
+   ld b32 $r15 D[$r5 + #ctx_src_xsize]
+   ld b32 $r11 D[$r5 + #ctx_src_cpp]
    mulu $r15 $r11
    mov $r11 1
    shl b32 $r11 $r7
@@ -609,7 +611,7 @@ ifdef(`NVA3',
    push $r15
 
    // nTy = (h + ((1 << Th) - 1)) >> Th
-   ld b32 $r15 D[$r5 + ctx_src_ysize]
+   ld b32 $r15 D[$r5 + #ctx_src_ysize]
    mov $r11 1
    shl b32 $r11 $r8
    sub b32 $r11 1
@@ -629,7 +631,7 @@ ifdef(`NVA3',
    // Tz  = z >> Td
    // Op += Tzo << Tys
    // Ts  = Tys + Td
-   ld b32 $r8 D[$r5 + ctx_src_zoff]
+   ld b32 $r8 D[$r5 + #ctx_src_zoff]
    mov $r14 1
    shl b32 $r14 $r9
    sub b32 $r14 1
@@ -656,8 +658,8 @@ ifdef(`NVA3',
 
    // SRC_ADDRESS_LOW   = (Ot + Op) & 0xffffffff
    // CFG_ADDRESS_HIGH |= ((Ot + Op) >> 32) << 16
-   ld b32 $r7 D[$r5 + ctx_src_address_low]
-   ld b32 $r8 D[$r5 + ctx_src_address_high]
+   ld b32 $r7 D[$r5 + #ctx_src_address_low]
+   ld b32 $r8 D[$r5 + #ctx_src_address_high]
    add b32 $r10 $r12
    add b32 $r7 $r10
    adc b32 $r8 0
@@ -677,14 +679,14 @@ cmd_exec_set_surface_linear:
    xbit $r6 $flags $p2
    add b32 $r6 0x202
    shl b32 $r6 8
-   ld b32 $r7 D[$r5 + ctx_src_address_low]
+   ld b32 $r7 D[$r5 + #ctx_src_address_low]
    iowr I[$r6 + 0x000] $r7
    add b32 $r6 0x400
-   ld b32 $r7 D[$r5 + ctx_src_address_high]
+   ld b32 $r7 D[$r5 + #ctx_src_address_high]
    shl b32 $r7 16
    iowr I[$r6 + 0x000] $r7
    add b32 $r6 0x400
-   ld b32 $r7 D[$r5 + ctx_src_pitch]
+   ld b32 $r7 D[$r5 + #ctx_src_pitch]
    iowr I[$r6 + 0x000] $r7
    ret
 
@@ -697,7 +699,7 @@ cmd_exec_wait:
    loop:
       iord $r1 I[$r0]
       and $r1 1
-      bra ne loop
+      bra ne #loop
    pop $r1
    pop $r0
    ret
@@ -705,18 +707,18 @@ cmd_exec_wait:
 cmd_exec_query:
    // if QUERY_SHORT not set, write out { -, 0, TIME_LO, TIME_HI }
    xbit $r4 $r3 13
-   bra ne query_counter
-      call cmd_exec_wait
+   bra ne #query_counter
+      call #cmd_exec_wait
       mov $r4 0x80c
       shl b32 $r4 6
-      ld b32 $r5 D[$r0 + ctx_query_address_low]
+      ld b32 $r5 D[$r0 + #ctx_query_address_low]
       add b32 $r5 4
       iowr I[$r4 + 0x000] $r5
       iowr I[$r4 + 0x100] $r0
       mov $r5 0xc
       iowr I[$r4 + 0x200] $r5
       add b32 $r4 0x400
-      ld b32 $r5 D[$r0 + ctx_query_address_high]
+      ld b32 $r5 D[$r0 + #ctx_query_address_high]
       shl b32 $r5 16
       iowr I[$r4 + 0x000] $r5
       add b32 $r4 0x500
@@ -741,16 +743,16 @@ cmd_exec_query:
 
    // write COUNTER
    query_counter:
-   call cmd_exec_wait
+   call #cmd_exec_wait
    mov $r4 0x80c
    shl b32 $r4 6
-   ld b32 $r5 D[$r0 + ctx_query_address_low]
+   ld b32 $r5 D[$r0 + #ctx_query_address_low]
    iowr I[$r4 + 0x000] $r5
    iowr I[$r4 + 0x100] $r0
    mov $r5 0x4
    iowr I[$r4 + 0x200] $r5
    add b32 $r4 0x400
-   ld b32 $r5 D[$r0 + ctx_query_address_high]
+   ld b32 $r5 D[$r0 + #ctx_query_address_high]
    shl b32 $r5 16
    iowr I[$r4 + 0x000] $r5
    add b32 $r4 0x500
@@ -759,7 +761,7 @@ cmd_exec_query:
    mov $r5 0x00001110
    sethi $r5 0x13120000
    iowr I[$r4 + 0x100] $r5
-   ld b32 $r5 D[$r0 + ctx_query_counter]
+   ld b32 $r5 D[$r0 + #ctx_query_counter]
    add b32 $r4 0x500
    iowr I[$r4 + 0x000] $r5
    mov $r5 0x00002601
@@ -787,22 +789,22 @@ cmd_exec_query:
 //       $r2: hostirq state
 //       $r3: data
 cmd_exec:
-   call cmd_exec_wait
+   call #cmd_exec_wait
 
    // if format requested, call function to calculate it, otherwise
    // fill in cpp/xcnt for both surfaces as if (cpp == 1)
    xbit $r15 $r3 0
-   bra e cmd_exec_no_format
-      call cmd_exec_set_format
+   bra e #cmd_exec_no_format
+      call #cmd_exec_set_format
       mov $r4 0x200
-      bra cmd_exec_init_src_surface
+      bra #cmd_exec_init_src_surface
    cmd_exec_no_format:
       mov $r6 0x810
       shl b32 $r6 6
       mov $r7 1
-      st b32 D[$r0 + ctx_src_cpp] $r7
-      st b32 D[$r0 + ctx_dst_cpp] $r7
-      ld b32 $r7 D[$r0 + ctx_xcnt]
+      st b32 D[$r0 + #ctx_src_cpp] $r7
+      st b32 D[$r0 + #ctx_dst_cpp] $r7
+      ld b32 $r7 D[$r0 + #ctx_xcnt]
       iowr I[$r6 + 0x000] $r7
       iowr I[$r6 + 0x100] $r7
       clear b32 $r4
@@ -811,28 +813,28 @@ cmd_exec:
    bclr $flags $p2
    clear b32 $r5
    xbit $r15 $r3 4
-   bra e src_tiled
-      call cmd_exec_set_surface_linear
-      bra cmd_exec_init_dst_surface
+   bra e #src_tiled
+      call #cmd_exec_set_surface_linear
+      bra #cmd_exec_init_dst_surface
    src_tiled:
-      call cmd_exec_set_surface_tiled
+      call #cmd_exec_set_surface_tiled
       bset $r4 7
 
    cmd_exec_init_dst_surface:
    bset $flags $p2
-   mov $r5 ctx_dst_address_high - ctx_src_address_high
+   mov $r5 #ctx_dst_address_high - #ctx_src_address_high
    xbit $r15 $r3 8
-   bra e dst_tiled
-      call cmd_exec_set_surface_linear
-      bra cmd_exec_kick
+   bra e #dst_tiled
+      call #cmd_exec_set_surface_linear
+      bra #cmd_exec_kick
    dst_tiled:
-      call cmd_exec_set_surface_tiled
+      call #cmd_exec_set_surface_tiled
       bset $r4 8
 
    cmd_exec_kick:
    mov $r5 0x800
    shl b32 $r5 6
-   ld b32 $r6 D[$r0 + ctx_ycnt]
+   ld b32 $r6 D[$r0 + #ctx_ycnt]
    iowr I[$r5 + 0x100] $r6
    mov $r6 0x0041
    // SRC_TARGET = 1, DST_TARGET = 2
@@ -842,8 +844,8 @@ cmd_exec:
 
    // if requested, queue up a QUERY write after the copy has completed
    xbit $r15 $r3 12
-   bra e cmd_exec_done
-      call cmd_exec_query
+   bra e #cmd_exec_done
+      call #cmd_exec_query
 
    cmd_exec_done:
    ret
diff --git a/drivers/gpu/drm/nouveau/nva3_copy.fuc.h b/drivers/gpu/drm/nouveau/nva3_copy.fuc.h
index 2731de22ebe9..1f33fbdc00be 100644
--- a/drivers/gpu/drm/nouveau/nva3_copy.fuc.h
+++ b/drivers/gpu/drm/nouveau/nva3_copy.fuc.h
@@ -152,7 +152,7 @@ uint32_t nva3_pcopy_code[] = {
 	0xf10010fe,
 	0xf1040017,
 	0xf0fff327,
-	0x22d00023,
+	0x12d00023,
 	0x0c25f0c0,
 	0xf40012d0,
 	0x17f11031,
diff --git a/drivers/gpu/drm/nouveau/nva3_pm.c b/drivers/gpu/drm/nouveau/nva3_pm.c
index 618c144b7a30..9e636e6ef6d7 100644
--- a/drivers/gpu/drm/nouveau/nva3_pm.c
+++ b/drivers/gpu/drm/nouveau/nva3_pm.c
@@ -287,12 +287,13 @@ nva3_pm_grcp_idle(void *data)
 	return false;
 }
 
-void
+int
 nva3_pm_clocks_set(struct drm_device *dev, void *pre_state)
 {
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
 	struct nva3_pm_state *info = pre_state;
 	unsigned long flags;
+	int ret = -EAGAIN;
 
 	/* prevent any new grctx switches from starting */
 	spin_lock_irqsave(&dev_priv->context_switch_lock, flags);
@@ -328,6 +329,8 @@ nva3_pm_clocks_set(struct drm_device *dev, void *pre_state)
 		nv_wr32(dev, 0x100210, 0x80000000);
 	}
 
+	ret = 0;
+
 cleanup:
 	/* unfreeze PFIFO */
 	nv_mask(dev, 0x002504, 0x00000001, 0x00000000);
@@ -339,4 +342,5 @@ cleanup:
 		nv_mask(dev, 0x400824, 0x10000000, 0x10000000);
 	spin_unlock_irqrestore(&dev_priv->context_switch_lock, flags);
 	kfree(info);
+	return ret;
 }
diff --git a/drivers/gpu/drm/nouveau/nvc0_copy.fuc.h b/drivers/gpu/drm/nouveau/nvc0_copy.fuc.h
index 419903880e9d..a8d17458ced1 100644
--- a/drivers/gpu/drm/nouveau/nvc0_copy.fuc.h
+++ b/drivers/gpu/drm/nouveau/nvc0_copy.fuc.h
@@ -145,7 +145,7 @@ uint32_t nvc0_pcopy_code[] = {
 	0xf10010fe,
 	0xf1040017,
 	0xf0fff327,
-	0x22d00023,
+	0x12d00023,
 	0x0c25f0c0,
 	0xf40012d0,
 	0x17f11031,
diff --git a/drivers/gpu/drm/nouveau/nvc0_graph.c b/drivers/gpu/drm/nouveau/nvc0_graph.c
index ecfafd70cf0e..8ee3963f9030 100644
--- a/drivers/gpu/drm/nouveau/nvc0_graph.c
+++ b/drivers/gpu/drm/nouveau/nvc0_graph.c
@@ -875,14 +875,16 @@ nvc0_graph_create(struct drm_device *dev)
 	case 0xcf: /* 4/0/0/0, 3 */
 		priv->magic_not_rop_nr = 0x03;
 		break;
+	case 0xd9: /* 1/0/0/0, 1 */
+		priv->magic_not_rop_nr = 0x01;
+		break;
 	}
 
 	if (!priv->magic_not_rop_nr) {
 		NV_ERROR(dev, "PGRAPH: unknown config: %d/%d/%d/%d, %d\n",
 			 priv->tp_nr[0], priv->tp_nr[1], priv->tp_nr[2],
 			 priv->tp_nr[3], priv->rop_nr);
-		/* use 0xc3's values... */
-		priv->magic_not_rop_nr = 0x03;
+		priv->magic_not_rop_nr = 0x00;
 	}
 
 	NVOBJ_CLASS(dev, 0x902d, GR); /* 2D */
diff --git a/drivers/gpu/drm/nouveau/nvc0_graph.fuc b/drivers/gpu/drm/nouveau/nvc0_graph.fuc
index 2a4b6dc8f9de..e6b228844a32 100644
--- a/drivers/gpu/drm/nouveau/nvc0_graph.fuc
+++ b/drivers/gpu/drm/nouveau/nvc0_graph.fuc
@@ -71,9 +71,9 @@ queue_put:
 	ld b32 $r9 D[$r13 + 0x4]	// PUT
 	xor $r8 8
 	cmpu b32 $r8 $r9
-	bra ne queue_put_next
+	bra ne #queue_put_next
 		mov $r15 E_CMD_OVERFLOW
-		call error
+		call #error
 		ret
 
 	// store cmd/data on queue
@@ -104,7 +104,7 @@ queue_get:
 	ld b32 $r8 D[$r13 + 0x0]	// GET
 	ld b32 $r9 D[$r13 + 0x4]	// PUT
 	cmpu b32 $r8 $r9
-	bra e queue_get_done
+	bra e #queue_get_done
 		// fetch first cmd/data pair
 		and $r9 $r8 7
 		shl b32 $r9 3
@@ -135,9 +135,9 @@ nv_rd32:
 	nv_rd32_wait:
 		iord $r12 I[$r11 + 0x000]
 		xbit $r12 $r12 31
-		bra ne nv_rd32_wait
+		bra ne #nv_rd32_wait
 	mov $r10 6			// DONE_MMIO_RD
-	call wait_doneo
+	call #wait_doneo
 	iord $r15 I[$r11 + 0x100]	// MMIO_RDVAL
 	ret
 
@@ -157,7 +157,7 @@ nv_wr32:
 	nv_wr32_wait:
 		iord $r12 I[$r11 + 0x000]
 		xbit $r12 $r12 31
-		bra ne nv_wr32_wait
+		bra ne #nv_wr32_wait
 	ret
 
 // (re)set watchdog timer
@@ -193,7 +193,7 @@ $1:
 		shl b32 $r8 6
 		iord $r8 I[$r8 + 0x000]	// DONE
 		xbit $r8 $r8 $r10
-		bra $2 wait_done_$1
+		bra $2 #wait_done_$1
 	trace_clr(T_WAIT)
 	ret
 ')
@@ -216,7 +216,7 @@ mmctx_size:
 		add b32 $r9 $r8
 		add b32 $r14 4
 		cmpu b32 $r14 $r15
-		bra ne nv_mmctx_size_loop
+		bra ne #nv_mmctx_size_loop
 	mov b32 $r15 $r9
 	ret
 
@@ -238,12 +238,12 @@ mmctx_xfer:
 	shl b32 $r8 6
 	clear b32 $r9
 	or $r11 $r11
-	bra e mmctx_base_disabled
+	bra e #mmctx_base_disabled
 		iowr I[$r8 + 0x000] $r11	// MMCTX_BASE
 		bset $r9 0			// BASE_EN
 	mmctx_base_disabled:
 	or $r14 $r14
-	bra e mmctx_multi_disabled
+	bra e #mmctx_multi_disabled
 		iowr I[$r8 + 0x200] $r14 	// MMCTX_MULTI_STRIDE
 		iowr I[$r8 + 0x300] $r15 	// MMCTX_MULTI_MASK
 		bset $r9 1			// MULTI_EN
@@ -264,7 +264,7 @@ mmctx_xfer:
 		mmctx_wait_free:
 			iord $r14 I[$r8 + 0x000] // MMCTX_CTRL
 			and $r14 0x1f
-			bra e mmctx_wait_free
+			bra e #mmctx_wait_free
 
 		// queue up an entry
 		ld b32 $r14 D[$r12]
@@ -272,19 +272,19 @@ mmctx_xfer:
 		iowr I[$r8 + 0x300] $r14
 		add b32 $r12 4
 		cmpu b32 $r12 $r13
-		bra ne mmctx_exec_loop
+		bra ne #mmctx_exec_loop
 
 	xbit $r11 $r10 2
-	bra ne mmctx_stop
+	bra ne #mmctx_stop
 		// wait for queue to empty
 		mmctx_fini_wait:
 			iord $r11 I[$r8 + 0x000]	// MMCTX_CTRL
 			and $r11 0x1f
 			cmpu b32 $r11 0x10
-			bra ne mmctx_fini_wait
+			bra ne #mmctx_fini_wait
 		mov $r10 2				// DONE_MMCTX
-		call wait_donez
-		bra mmctx_done
+		call #wait_donez
+		bra #mmctx_done
 	mmctx_stop:
 		xbit $r11 $r10 0
 		shl b32 $r11 16			// DIR
@@ -295,7 +295,7 @@ mmctx_xfer:
 			// wait for STOP_TRIGGER to clear
 			iord $r11 I[$r8 + 0x000] // MMCTX_CTRL
 			xbit $r11 $r11 18
-			bra ne mmctx_stop_wait
+			bra ne #mmctx_stop_wait
 	mmctx_done:
 	trace_clr(T_MMCTX)
 	ret
@@ -305,7 +305,7 @@ mmctx_xfer:
 strand_wait:
 	push $r10
 	mov $r10 2
-	call wait_donez
+	call #wait_donez
 	pop $r10
 	ret
 
@@ -316,7 +316,7 @@ strand_pre:
 	sethi $r8 0x20000
 	mov $r9 0xc
 	iowr I[$r8] $r9
-	call strand_wait
+	call #strand_wait
 	ret
 
 // unknown - call after issuing strand commands
@@ -326,7 +326,7 @@ strand_post:
 	sethi $r8 0x20000
 	mov $r9 0xd
 	iowr I[$r8] $r9
-	call strand_wait
+	call #strand_wait
 	ret
 
 // Selects strand set?!
@@ -341,11 +341,11 @@ strand_set:
 	iowr I[$r10 + 0x000] $r12		// 0x93c = 0xf
 	mov $r12 0xb
 	iowr I[$r11 + 0x000] $r12		// 0x928 = 0xb
-	call strand_wait
+	call #strand_wait
 	iowr I[$r10 + 0x000] $r14		// 0x93c = <id>
 	mov $r12 0xa
 	iowr I[$r11 + 0x000] $r12		// 0x928 = 0xa
-	call strand_wait
+	call #strand_wait
 	ret
 
 // Initialise strand context data
@@ -357,22 +357,22 @@ strand_set:
 //
 strand_ctx_init:
 	trace_set(T_STRINIT)
-	call strand_pre
+	call #strand_pre
 	mov $r14 3
-	call strand_set
+	call #strand_set
 	mov $r10 0x46fc
 	sethi $r10 0x20000
 	add b32 $r11 $r10 0x400
 	iowr I[$r10 + 0x100] $r0	// STRAND_FIRST_GENE = 0
 	mov $r12 1
 	iowr I[$r11 + 0x000] $r12	// STRAND_CMD = LATCH_FIRST_GENE
-	call strand_wait
+	call #strand_wait
 	sub b32 $r12 $r0 1
 	iowr I[$r10 + 0x000] $r12	// STRAND_GENE_CNT = 0xffffffff
 	mov $r12 2
 	iowr I[$r11 + 0x000] $r12	// STRAND_CMD = LATCH_GENE_CNT
-	call strand_wait
-	call strand_post
+	call #strand_wait
+	call #strand_post
 
 	// read the size of each strand, poke the context offset of
 	// each into STRAND_{SAVE,LOAD}_SWBASE now, no need to worry
@@ -391,7 +391,7 @@ strand_ctx_init:
 		add b32 $r14 $r10
 		add b32 $r8 4
 		sub b32 $r9 1
-		bra ne ctx_init_strand_loop
+		bra ne #ctx_init_strand_loop
 
 	shl b32 $r14 8
 	sub b32 $r15 $r14 $r15
diff --git a/drivers/gpu/drm/nouveau/nvc0_graph.h b/drivers/gpu/drm/nouveau/nvc0_graph.h
index 636fe9812f79..91d44ea662d9 100644
--- a/drivers/gpu/drm/nouveau/nvc0_graph.h
+++ b/drivers/gpu/drm/nouveau/nvc0_graph.h
@@ -87,6 +87,7 @@ nvc0_graph_class(struct drm_device *dev)
 	case 0xc1:
 		return 0x9197;
 	case 0xc8:
+	case 0xd9:
 		return 0x9297;
 	default:
 		return 0;
diff --git a/drivers/gpu/drm/nouveau/nvc0_grctx.c b/drivers/gpu/drm/nouveau/nvc0_grctx.c
index 96b0b93d94ca..de77842b31c0 100644
--- a/drivers/gpu/drm/nouveau/nvc0_grctx.c
+++ b/drivers/gpu/drm/nouveau/nvc0_grctx.c
@@ -1268,6 +1268,17 @@ nvc0_grctx_generate_9039(struct drm_device *dev)
 static void
 nvc0_grctx_generate_90c0(struct drm_device *dev)
 {
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	int i;
+
+	for (i = 0; dev_priv->chipset == 0xd9 && i < 4; i++) {
+		nv_mthd(dev, 0x90c0, 0x2700 + (i * 0x40), 0x00000000);
+		nv_mthd(dev, 0x90c0, 0x2720 + (i * 0x40), 0x00000000);
+		nv_mthd(dev, 0x90c0, 0x2704 + (i * 0x40), 0x00000000);
+		nv_mthd(dev, 0x90c0, 0x2724 + (i * 0x40), 0x00000000);
+		nv_mthd(dev, 0x90c0, 0x2708 + (i * 0x40), 0x00000000);
+		nv_mthd(dev, 0x90c0, 0x2728 + (i * 0x40), 0x00000000);
+	}
 	nv_mthd(dev, 0x90c0, 0x270c, 0x00000000);
 	nv_mthd(dev, 0x90c0, 0x272c, 0x00000000);
 	nv_mthd(dev, 0x90c0, 0x274c, 0x00000000);
@@ -1276,6 +1287,12 @@ nvc0_grctx_generate_90c0(struct drm_device *dev)
 	nv_mthd(dev, 0x90c0, 0x27ac, 0x00000000);
 	nv_mthd(dev, 0x90c0, 0x27cc, 0x00000000);
 	nv_mthd(dev, 0x90c0, 0x27ec, 0x00000000);
+	for (i = 0; dev_priv->chipset == 0xd9 && i < 4; i++) {
+		nv_mthd(dev, 0x90c0, 0x2710 + (i * 0x40), 0x00014000);
+		nv_mthd(dev, 0x90c0, 0x2730 + (i * 0x40), 0x00014000);
+		nv_mthd(dev, 0x90c0, 0x2714 + (i * 0x40), 0x00000040);
+		nv_mthd(dev, 0x90c0, 0x2734 + (i * 0x40), 0x00000040);
+	}
 	nv_mthd(dev, 0x90c0, 0x030c, 0x00000001);
 	nv_mthd(dev, 0x90c0, 0x1944, 0x00000000);
 	nv_mthd(dev, 0x90c0, 0x0758, 0x00000100);
@@ -1471,14 +1488,20 @@ nvc0_grctx_generate_shaders(struct drm_device *dev)
 {
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
 
-	if (dev_priv->chipset != 0xc1) {
-		nv_wr32(dev, 0x405800, 0x078000bf);
-		nv_wr32(dev, 0x405830, 0x02180000);
-	} else {
+	if (dev_priv->chipset == 0xd9) {
 		nv_wr32(dev, 0x405800, 0x0f8000bf);
 		nv_wr32(dev, 0x405830, 0x02180218);
+		nv_wr32(dev, 0x405834, 0x08000000);
+	} else
+	if (dev_priv->chipset == 0xc1) {
+		nv_wr32(dev, 0x405800, 0x0f8000bf);
+		nv_wr32(dev, 0x405830, 0x02180218);
+		nv_wr32(dev, 0x405834, 0x00000000);
+	} else {
+		nv_wr32(dev, 0x405800, 0x078000bf);
+		nv_wr32(dev, 0x405830, 0x02180000);
+		nv_wr32(dev, 0x405834, 0x00000000);
 	}
-	nv_wr32(dev, 0x405834, 0x00000000);
 	nv_wr32(dev, 0x405838, 0x00000000);
 	nv_wr32(dev, 0x405854, 0x00000000);
 	nv_wr32(dev, 0x405870, 0x00000001);
@@ -1509,7 +1532,10 @@ nvc0_grctx_generate_unk64xx(struct drm_device *dev)
 	nv_wr32(dev, 0x4064ac, 0x00003fff);
 	nv_wr32(dev, 0x4064b4, 0x00000000);
 	nv_wr32(dev, 0x4064b8, 0x00000000);
-	if (dev_priv->chipset == 0xc1) {
+	if (dev_priv->chipset == 0xd9)
+		nv_wr32(dev, 0x4064bc, 0x00000000);
+	if (dev_priv->chipset == 0xc1 ||
+	    dev_priv->chipset == 0xd9) {
 		nv_wr32(dev, 0x4064c0, 0x80140078);
 		nv_wr32(dev, 0x4064c4, 0x0086ffff);
 	}
@@ -1550,10 +1576,23 @@ nvc0_grctx_generate_rop(struct drm_device *dev)
 	/* ROPC_BROADCAST */
 	nv_wr32(dev, 0x408800, 0x02802a3c);
 	nv_wr32(dev, 0x408804, 0x00000040);
-	nv_wr32(dev, 0x408808, chipset != 0xc1 ? 0x0003e00d : 0x1003e005);
-	nv_wr32(dev, 0x408900, 0x3080b801);
-	nv_wr32(dev, 0x408904, chipset != 0xc1 ? 0x02000001 : 0x62000001);
-	nv_wr32(dev, 0x408908, 0x00c80929);
+	if (chipset == 0xd9) {
+		nv_wr32(dev, 0x408808, 0x1043e005);
+		nv_wr32(dev, 0x408900, 0x3080b801);
+		nv_wr32(dev, 0x408904, 0x1043e005);
+		nv_wr32(dev, 0x408908, 0x00c8102f);
+	} else
+	if (chipset == 0xc1) {
+		nv_wr32(dev, 0x408808, 0x1003e005);
+		nv_wr32(dev, 0x408900, 0x3080b801);
+		nv_wr32(dev, 0x408904, 0x62000001);
+		nv_wr32(dev, 0x408908, 0x00c80929);
+	} else {
+		nv_wr32(dev, 0x408808, 0x0003e00d);
+		nv_wr32(dev, 0x408900, 0x3080b801);
+		nv_wr32(dev, 0x408904, 0x02000001);
+		nv_wr32(dev, 0x408908, 0x00c80929);
+	}
 	nv_wr32(dev, 0x40890c, 0x00000000);
 	nv_wr32(dev, 0x408980, 0x0000011d);
 }
@@ -1572,7 +1611,7 @@ nvc0_grctx_generate_gpc(struct drm_device *dev)
 	nv_wr32(dev, 0x418408, 0x00000000);
 	nv_wr32(dev, 0x41840c, 0x00001008);
 	nv_wr32(dev, 0x418410, 0x0fff0fff);
-	nv_wr32(dev, 0x418414, 0x00200fff);
+	nv_wr32(dev, 0x418414, chipset != 0xd9 ? 0x00200fff : 0x02200fff);
 	nv_wr32(dev, 0x418450, 0x00000000);
 	nv_wr32(dev, 0x418454, 0x00000000);
 	nv_wr32(dev, 0x418458, 0x00000000);
@@ -1587,14 +1626,17 @@ nvc0_grctx_generate_gpc(struct drm_device *dev)
 	nv_wr32(dev, 0x418700, 0x00000002);
 	nv_wr32(dev, 0x418704, 0x00000080);
 	nv_wr32(dev, 0x418708, 0x00000000);
-	nv_wr32(dev, 0x41870c, 0x07c80000);
+	nv_wr32(dev, 0x41870c, chipset != 0xd9 ? 0x07c80000 : 0x00000000);
 	nv_wr32(dev, 0x418710, 0x00000000);
-	nv_wr32(dev, 0x418800, 0x0006860a);
+	nv_wr32(dev, 0x418800, chipset != 0xd9 ? 0x0006860a : 0x7006860a);
 	nv_wr32(dev, 0x418808, 0x00000000);
 	nv_wr32(dev, 0x41880c, 0x00000000);
 	nv_wr32(dev, 0x418810, 0x00000000);
 	nv_wr32(dev, 0x418828, 0x00008442);
-	nv_wr32(dev, 0x418830, chipset != 0xc1 ? 0x00000001 : 0x10000001);
+	if (chipset == 0xc1 || chipset == 0xd9)
+		nv_wr32(dev, 0x418830, 0x10000001);
+	else
+		nv_wr32(dev, 0x418830, 0x00000001);
 	nv_wr32(dev, 0x4188d8, 0x00000008);
 	nv_wr32(dev, 0x4188e0, 0x01000000);
 	nv_wr32(dev, 0x4188e8, 0x00000000);
@@ -1602,7 +1644,12 @@ nvc0_grctx_generate_gpc(struct drm_device *dev)
 	nv_wr32(dev, 0x4188f0, 0x00000000);
 	nv_wr32(dev, 0x4188f4, 0x00000000);
 	nv_wr32(dev, 0x4188f8, 0x00000000);
-	nv_wr32(dev, 0x4188fc, chipset != 0xc1 ? 0x00100000 : 0x00100018);
+	if (chipset == 0xd9)
+		nv_wr32(dev, 0x4188fc, 0x20100008);
+	else if (chipset == 0xc1)
+		nv_wr32(dev, 0x4188fc, 0x00100018);
+	else
+		nv_wr32(dev, 0x4188fc, 0x00100000);
 	nv_wr32(dev, 0x41891c, 0x00ff00ff);
 	nv_wr32(dev, 0x418924, 0x00000000);
 	nv_wr32(dev, 0x418928, 0x00ffff00);
@@ -1616,7 +1663,7 @@ nvc0_grctx_generate_gpc(struct drm_device *dev)
 		nv_wr32(dev, 0x418a14 + (i * 0x20), 0x00000000);
 		nv_wr32(dev, 0x418a18 + (i * 0x20), 0x00000000);
 	}
-	nv_wr32(dev, 0x418b00, 0x00000000);
+	nv_wr32(dev, 0x418b00, chipset != 0xd9 ? 0x00000000 : 0x00000006);
 	nv_wr32(dev, 0x418b08, 0x0a418820);
 	nv_wr32(dev, 0x418b0c, 0x062080e6);
 	nv_wr32(dev, 0x418b10, 0x020398a4);
@@ -1633,7 +1680,7 @@ nvc0_grctx_generate_gpc(struct drm_device *dev)
 	nv_wr32(dev, 0x418c24, 0x00000000);
 	nv_wr32(dev, 0x418c28, 0x00000000);
 	nv_wr32(dev, 0x418c2c, 0x00000000);
-	if (chipset == 0xc1)
+	if (chipset == 0xc1 || chipset == 0xd9)
 		nv_wr32(dev, 0x418c6c, 0x00000001);
 	nv_wr32(dev, 0x418c80, 0x20200004);
 	nv_wr32(dev, 0x418c8c, 0x00000001);
@@ -1653,7 +1700,10 @@ nvc0_grctx_generate_tp(struct drm_device *dev)
 	nv_wr32(dev, 0x419818, 0x00000000);
 	nv_wr32(dev, 0x41983c, 0x00038bc7);
 	nv_wr32(dev, 0x419848, 0x00000000);
-	nv_wr32(dev, 0x419864, chipset != 0xc1 ? 0x0000012a : 0x00000129);
+	if (chipset == 0xc1 || chipset == 0xd9)
+		nv_wr32(dev, 0x419864, 0x00000129);
+	else
+		nv_wr32(dev, 0x419864, 0x0000012a);
 	nv_wr32(dev, 0x419888, 0x00000000);
 	nv_wr32(dev, 0x419a00, 0x000001f0);
 	nv_wr32(dev, 0x419a04, 0x00000001);
@@ -1663,7 +1713,9 @@ nvc0_grctx_generate_tp(struct drm_device *dev)
 	nv_wr32(dev, 0x419a14, 0x00000200);
 	nv_wr32(dev, 0x419a1c, 0x00000000);
 	nv_wr32(dev, 0x419a20, 0x00000800);
-	if (chipset != 0xc0 && chipset != 0xc8)
+	if (chipset == 0xd9)
+		nv_wr32(dev, 0x00419ac4, 0x0017f440);
+	else if (chipset != 0xc0 && chipset != 0xc8)
 		nv_wr32(dev, 0x00419ac4, 0x0007f440);
 	nv_wr32(dev, 0x419b00, 0x0a418820);
 	nv_wr32(dev, 0x419b04, 0x062080e6);
@@ -1672,21 +1724,33 @@ nvc0_grctx_generate_tp(struct drm_device *dev)
 	nv_wr32(dev, 0x419b10, 0x0a418820);
 	nv_wr32(dev, 0x419b14, 0x000000e6);
 	nv_wr32(dev, 0x419bd0, 0x00900103);
-	nv_wr32(dev, 0x419be0, chipset != 0xc1 ? 0x00000001 : 0x00400001);
+	if (chipset == 0xc1 || chipset == 0xd9)
+		nv_wr32(dev, 0x419be0, 0x00400001);
+	else
+		nv_wr32(dev, 0x419be0, 0x00000001);
 	nv_wr32(dev, 0x419be4, 0x00000000);
-	nv_wr32(dev, 0x419c00, 0x00000002);
+	nv_wr32(dev, 0x419c00, chipset != 0xd9 ? 0x00000002 : 0x0000000a);
 	nv_wr32(dev, 0x419c04, 0x00000006);
 	nv_wr32(dev, 0x419c08, 0x00000002);
 	nv_wr32(dev, 0x419c20, 0x00000000);
-	if (chipset == 0xce || chipset == 0xcf)
+	if (dev_priv->chipset == 0xd9) {
+		nv_wr32(dev, 0x419c24, 0x00084210);
+		nv_wr32(dev, 0x419c28, 0x3cf3cf3c);
 		nv_wr32(dev, 0x419cb0, 0x00020048);
-	else
+	} else
+	if (chipset == 0xce || chipset == 0xcf) {
+		nv_wr32(dev, 0x419cb0, 0x00020048);
+	} else {
 		nv_wr32(dev, 0x419cb0, 0x00060048);
+	}
 	nv_wr32(dev, 0x419ce8, 0x00000000);
 	nv_wr32(dev, 0x419cf4, 0x00000183);
-	nv_wr32(dev, 0x419d20, chipset != 0xc1 ? 0x02180000 : 0x12180000);
+	if (chipset == 0xc1 || chipset == 0xd9)
+		nv_wr32(dev, 0x419d20, 0x12180000);
+	else
+		nv_wr32(dev, 0x419d20, 0x02180000);
 	nv_wr32(dev, 0x419d24, 0x00001fff);
-	if (chipset == 0xc1)
+	if (chipset == 0xc1 || chipset == 0xd9)
 		nv_wr32(dev, 0x419d44, 0x02180218);
 	nv_wr32(dev, 0x419e04, 0x00000000);
 	nv_wr32(dev, 0x419e08, 0x00000000);
@@ -1986,6 +2050,10 @@ nvc0_grctx_generate(struct nouveau_channel *chan)
 	nv_icmd(dev, 0x00000215, 0x00000040);
 	nv_icmd(dev, 0x00000216, 0x00000040);
 	nv_icmd(dev, 0x00000217, 0x00000040);
+	if (dev_priv->chipset == 0xd9) {
+		for (i = 0x0400; i <= 0x0417; i++)
+			nv_icmd(dev, i, 0x00000040);
+	}
 	nv_icmd(dev, 0x00000218, 0x0000c080);
 	nv_icmd(dev, 0x00000219, 0x0000c080);
 	nv_icmd(dev, 0x0000021a, 0x0000c080);
@@ -1994,6 +2062,10 @@ nvc0_grctx_generate(struct nouveau_channel *chan)
 	nv_icmd(dev, 0x0000021d, 0x0000c080);
 	nv_icmd(dev, 0x0000021e, 0x0000c080);
 	nv_icmd(dev, 0x0000021f, 0x0000c080);
+	if (dev_priv->chipset == 0xd9) {
+		for (i = 0x0440; i <= 0x0457; i++)
+			nv_icmd(dev, i, 0x0000c080);
+	}
 	nv_icmd(dev, 0x000000ad, 0x0000013e);
 	nv_icmd(dev, 0x000000e1, 0x00000010);
 	nv_icmd(dev, 0x00000290, 0x00000000);
@@ -2556,7 +2628,8 @@ nvc0_grctx_generate(struct nouveau_channel *chan)
 	nv_icmd(dev, 0x0000053f, 0xffff0000);
 	nv_icmd(dev, 0x00000585, 0x0000003f);
 	nv_icmd(dev, 0x00000576, 0x00000003);
-	if (dev_priv->chipset == 0xc1)
+	if (dev_priv->chipset == 0xc1 ||
+	    dev_priv->chipset == 0xd9)
 		nv_icmd(dev, 0x0000057b, 0x00000059);
 	nv_icmd(dev, 0x00000586, 0x00000040);
 	nv_icmd(dev, 0x00000582, 0x00000080);
@@ -2658,6 +2731,8 @@ nvc0_grctx_generate(struct nouveau_channel *chan)
 	nv_icmd(dev, 0x00000957, 0x00000003);
 	nv_icmd(dev, 0x0000095e, 0x20164010);
 	nv_icmd(dev, 0x0000095f, 0x00000020);
+	if (dev_priv->chipset == 0xd9)
+		nv_icmd(dev, 0x0000097d, 0x00000020);
 	nv_icmd(dev, 0x00000683, 0x00000006);
 	nv_icmd(dev, 0x00000685, 0x003fffff);
 	nv_icmd(dev, 0x00000687, 0x00000c48);
diff --git a/drivers/gpu/drm/nouveau/nvc0_grgpc.fuc b/drivers/gpu/drm/nouveau/nvc0_grgpc.fuc
index 06f5e26d1e0f..15272be33b66 100644
--- a/drivers/gpu/drm/nouveau/nvc0_grgpc.fuc
+++ b/drivers/gpu/drm/nouveau/nvc0_grgpc.fuc
@@ -32,7 +32,7 @@
  * - watchdog timer around ctx operations
  */
 
-.section nvc0_grgpc_data
+.section #nvc0_grgpc_data
 include(`nvc0_graph.fuc')
 gpc_id:			.b32 0
 gpc_mmio_list_head:	.b32 0
@@ -48,40 +48,45 @@ cmd_queue:		queue_init
 // chipset descriptions
 chipsets:
 .b8  0xc0 0 0 0
-.b16 nvc0_gpc_mmio_head
-.b16 nvc0_gpc_mmio_tail
-.b16 nvc0_tpc_mmio_head
-.b16 nvc0_tpc_mmio_tail
+.b16 #nvc0_gpc_mmio_head
+.b16 #nvc0_gpc_mmio_tail
+.b16 #nvc0_tpc_mmio_head
+.b16 #nvc0_tpc_mmio_tail
 .b8  0xc1 0 0 0
-.b16 nvc0_gpc_mmio_head
-.b16 nvc1_gpc_mmio_tail
-.b16 nvc0_tpc_mmio_head
-.b16 nvc1_tpc_mmio_tail
+.b16 #nvc0_gpc_mmio_head
+.b16 #nvc1_gpc_mmio_tail
+.b16 #nvc0_tpc_mmio_head
+.b16 #nvc1_tpc_mmio_tail
 .b8  0xc3 0 0 0
-.b16 nvc0_gpc_mmio_head
-.b16 nvc0_gpc_mmio_tail
-.b16 nvc0_tpc_mmio_head
-.b16 nvc3_tpc_mmio_tail
+.b16 #nvc0_gpc_mmio_head
+.b16 #nvc0_gpc_mmio_tail
+.b16 #nvc0_tpc_mmio_head
+.b16 #nvc3_tpc_mmio_tail
 .b8  0xc4 0 0 0
-.b16 nvc0_gpc_mmio_head
-.b16 nvc0_gpc_mmio_tail
-.b16 nvc0_tpc_mmio_head
-.b16 nvc3_tpc_mmio_tail
+.b16 #nvc0_gpc_mmio_head
+.b16 #nvc0_gpc_mmio_tail
+.b16 #nvc0_tpc_mmio_head
+.b16 #nvc3_tpc_mmio_tail
 .b8  0xc8 0 0 0
-.b16 nvc0_gpc_mmio_head
-.b16 nvc0_gpc_mmio_tail
-.b16 nvc0_tpc_mmio_head
-.b16 nvc0_tpc_mmio_tail
+.b16 #nvc0_gpc_mmio_head
+.b16 #nvc0_gpc_mmio_tail
+.b16 #nvc0_tpc_mmio_head
+.b16 #nvc0_tpc_mmio_tail
 .b8  0xce 0 0 0
-.b16 nvc0_gpc_mmio_head
-.b16 nvc0_gpc_mmio_tail
-.b16 nvc0_tpc_mmio_head
-.b16 nvc3_tpc_mmio_tail
+.b16 #nvc0_gpc_mmio_head
+.b16 #nvc0_gpc_mmio_tail
+.b16 #nvc0_tpc_mmio_head
+.b16 #nvc3_tpc_mmio_tail
 .b8  0xcf 0 0 0
-.b16 nvc0_gpc_mmio_head
-.b16 nvc0_gpc_mmio_tail
-.b16 nvc0_tpc_mmio_head
-.b16 nvcf_tpc_mmio_tail
+.b16 #nvc0_gpc_mmio_head
+.b16 #nvc0_gpc_mmio_tail
+.b16 #nvc0_tpc_mmio_head
+.b16 #nvcf_tpc_mmio_tail
+.b8  0xd9 0 0 0
+.b16 #nvd9_gpc_mmio_head
+.b16 #nvd9_gpc_mmio_tail
+.b16 #nvd9_tpc_mmio_head
+.b16 #nvd9_tpc_mmio_tail
 .b8  0 0 0 0
 
 // GPC mmio lists
@@ -114,6 +119,35 @@ nvc0_gpc_mmio_tail:
 mmctx_data(0x000c6c, 1);
 nvc1_gpc_mmio_tail:
 
+nvd9_gpc_mmio_head:
+mmctx_data(0x000380, 1)
+mmctx_data(0x000400, 2)
+mmctx_data(0x00040c, 3)
+mmctx_data(0x000450, 9)
+mmctx_data(0x000600, 1)
+mmctx_data(0x000684, 1)
+mmctx_data(0x000700, 5)
+mmctx_data(0x000800, 1)
+mmctx_data(0x000808, 3)
+mmctx_data(0x000828, 1)
+mmctx_data(0x000830, 1)
+mmctx_data(0x0008d8, 1)
+mmctx_data(0x0008e0, 1)
+mmctx_data(0x0008e8, 6)
+mmctx_data(0x00091c, 1)
+mmctx_data(0x000924, 3)
+mmctx_data(0x000b00, 1)
+mmctx_data(0x000b08, 6)
+mmctx_data(0x000bb8, 1)
+mmctx_data(0x000c08, 1)
+mmctx_data(0x000c10, 8)
+mmctx_data(0x000c6c, 1)
+mmctx_data(0x000c80, 1)
+mmctx_data(0x000c8c, 1)
+mmctx_data(0x001000, 3)
+mmctx_data(0x001014, 1)
+nvd9_gpc_mmio_tail:
+
 // TPC mmio lists
 nvc0_tpc_mmio_head:
 mmctx_data(0x000018, 1)
@@ -146,9 +180,34 @@ nvc3_tpc_mmio_tail:
 mmctx_data(0x000544, 1)
 nvc1_tpc_mmio_tail:
 
+nvd9_tpc_mmio_head:
+mmctx_data(0x000018, 1)
+mmctx_data(0x00003c, 1)
+mmctx_data(0x000048, 1)
+mmctx_data(0x000064, 1)
+mmctx_data(0x000088, 1)
+mmctx_data(0x000200, 6)
+mmctx_data(0x00021c, 2)
+mmctx_data(0x0002c4, 1)
+mmctx_data(0x000300, 6)
+mmctx_data(0x0003d0, 1)
+mmctx_data(0x0003e0, 2)
+mmctx_data(0x000400, 3)
+mmctx_data(0x000420, 3)
+mmctx_data(0x0004b0, 1)
+mmctx_data(0x0004e8, 1)
+mmctx_data(0x0004f4, 1)
+mmctx_data(0x000520, 2)
+mmctx_data(0x000544, 1)
+mmctx_data(0x000604, 4)
+mmctx_data(0x000644, 20)
+mmctx_data(0x000698, 1)
+mmctx_data(0x0006e0, 1)
+mmctx_data(0x000750, 3)
+nvd9_tpc_mmio_tail:
 
-.section nvc0_grgpc_code
-bra init
+.section #nvc0_grgpc_code
+bra #init
 define(`include_code')
 include(`nvc0_graph.fuc')
 
@@ -160,10 +219,10 @@ error:
 	push $r14
 	mov $r14 -0x67ec 	// 0x9814
 	sethi $r14 0x400000
-	call nv_wr32		// HUB_CTXCTL_CC_SCRATCH[5] = error code
+	call #nv_wr32		// HUB_CTXCTL_CC_SCRATCH[5] = error code
 	add b32 $r14 0x41c
 	mov $r15 1
-	call nv_wr32		// HUB_CTXCTL_INTR_UP_SET
+	call #nv_wr32		// HUB_CTXCTL_INTR_UP_SET
 	pop $r14
 	ret
 
@@ -190,7 +249,7 @@ init:
 	iowr I[$r1 + 0x000] $r2		// FIFO_ENABLE
 
 	// setup i0 handler, and route all interrupts to it
-	mov $r1 ih
+	mov $r1 #ih
 	mov $iv0 $r1
 	mov $r1 0x400
 	iowr I[$r1 + 0x300] $r0		// INTR_DISPATCH
@@ -210,24 +269,24 @@ init:
 	and $r2 0x1f
 	shl b32 $r3 $r2
 	sub b32 $r3 1
-	st b32 D[$r0 + tpc_count] $r2
-	st b32 D[$r0 + tpc_mask] $r3
+	st b32 D[$r0 + #tpc_count] $r2
+	st b32 D[$r0 + #tpc_mask] $r3
 	add b32 $r1 0x400
 	iord $r2 I[$r1 + 0x000]		// MYINDEX
-	st b32 D[$r0 + gpc_id] $r2
+	st b32 D[$r0 + #gpc_id] $r2
 
 	// find context data for this chipset
 	mov $r2 0x800
 	shl b32 $r2 6
 	iord $r2 I[$r2 + 0x000]		// CC_SCRATCH[0]
-	mov $r1 chipsets - 12
+	mov $r1 #chipsets - 12
 	init_find_chipset:
 		add b32 $r1 12
 		ld b32 $r3 D[$r1 + 0x00]
 		cmpu b32 $r3 $r2
-		bra e init_context
+		bra e #init_context
 		cmpu b32 $r3 0
-		bra ne init_find_chipset
+		bra ne #init_find_chipset
 		// unknown chipset
 		ret
 
@@ -253,19 +312,19 @@ init:
 	clear b32 $r15
 	ld b16 $r14 D[$r1 + 4]
 	ld b16 $r15 D[$r1 + 6]
-	st b16 D[$r0 + gpc_mmio_list_head] $r14
-	st b16 D[$r0 + gpc_mmio_list_tail] $r15
-	call mmctx_size
+	st b16 D[$r0 + #gpc_mmio_list_head] $r14
+	st b16 D[$r0 + #gpc_mmio_list_tail] $r15
+	call #mmctx_size
 	add b32 $r2 $r15
 	add b32 $r3 $r15
 
 	// calculate per-TPC mmio context size, store the list pointers
 	ld b16 $r14 D[$r1 + 8]
 	ld b16 $r15 D[$r1 + 10]
-	st b16 D[$r0 + tpc_mmio_list_head] $r14
-	st b16 D[$r0 + tpc_mmio_list_tail] $r15
-	call mmctx_size
-	ld b32 $r14 D[$r0 + tpc_count]
+	st b16 D[$r0 + #tpc_mmio_list_head] $r14
+	st b16 D[$r0 + #tpc_mmio_list_tail] $r15
+	call #mmctx_size
+	ld b32 $r14 D[$r0 + #tpc_count]
 	mulu $r14 $r15
 	add b32 $r2 $r14
 	add b32 $r3 $r14
@@ -283,7 +342,7 @@ init:
 
 	// calculate size of strand context data
 	mov b32 $r15 $r2
-	call strand_ctx_init
+	call #strand_ctx_init
 	add b32 $r3 $r15
 
 	// save context size, and tell HUB we're done
@@ -301,13 +360,13 @@ init:
 main:
 	bset $flags $p0
 	sleep $p0
-	mov $r13 cmd_queue
-	call queue_get
-	bra $p1 main
+	mov $r13 #cmd_queue
+	call #queue_get
+	bra $p1 #main
 
 	// 0x0000-0x0003 are all context transfers
 	cmpu b32 $r14 0x04
-	bra nc main_not_ctx_xfer
+	bra nc #main_not_ctx_xfer
 		// fetch $flags and mask off $p1/$p2
 		mov $r1 $flags
 		mov $r2 0x0006
@@ -318,14 +377,14 @@ main:
 		or $r1 $r14
 		mov $flags $r1
 		// transfer context data
-		call ctx_xfer
-		bra main
+		call #ctx_xfer
+		bra #main
 
 	main_not_ctx_xfer:
 	shl b32 $r15 $r14 16
 	or $r15 E_BAD_COMMAND
-	call error
-	bra main
+	call #error
+	bra #main
 
 // interrupt handler
 ih:
@@ -342,13 +401,13 @@ ih:
 	// incoming fifo command?
 	iord $r10 I[$r0 + 0x200]	// INTR
 	and $r11 $r10 0x00000004
-	bra e ih_no_fifo
+	bra e #ih_no_fifo
 		// queue incoming fifo command for later processing
 		mov $r11 0x1900
-		mov $r13 cmd_queue
+		mov $r13 #cmd_queue
 		iord $r14 I[$r11 + 0x100]	// FIFO_CMD
 		iord $r15 I[$r11 + 0x000]	// FIFO_DATA
-		call queue_put
+		call #queue_put
 		add b32 $r11 0x400
 		mov $r14 1
 		iowr I[$r11 + 0x000] $r14	// FIFO_ACK
@@ -374,11 +433,11 @@ ih:
 //
 hub_barrier_done:
 	mov $r15 1
-	ld b32 $r14 D[$r0 + gpc_id]
+	ld b32 $r14 D[$r0 + #gpc_id]
 	shl b32 $r15 $r14
 	mov $r14 -0x6be8 	// 0x409418 - HUB_BAR_SET
 	sethi $r14 0x400000
-	call nv_wr32
+	call #nv_wr32
 	ret
 
 // Disables various things, waits a bit, and re-enables them..
@@ -395,7 +454,7 @@ ctx_redswitch:
 	mov $r15 8
 	ctx_redswitch_delay:
 		sub b32 $r15 1
-		bra ne ctx_redswitch_delay
+		bra ne #ctx_redswitch_delay
 	mov $r15 0xa20
 	iowr I[$r14] $r15	// GPC_RED_SWITCH = UNK11, ENABLE, POWER
 	ret
@@ -413,8 +472,8 @@ ctx_xfer:
 	mov $r1 0xa04
 	shl b32 $r1 6
 	iowr I[$r1 + 0x000] $r15// MEM_BASE
-	bra not $p1 ctx_xfer_not_load
-		call ctx_redswitch
+	bra not $p1 #ctx_xfer_not_load
+		call #ctx_redswitch
 	ctx_xfer_not_load:
 
 	// strands
@@ -422,7 +481,7 @@ ctx_xfer:
 	sethi $r1 0x20000
 	mov $r2 0xc
 	iowr I[$r1] $r2		// STRAND_CMD(0x3f) = 0x0c
-	call strand_wait
+	call #strand_wait
 	mov $r2 0x47fc
 	sethi $r2 0x20000
 	iowr I[$r2] $r0		// STRAND_FIRST_GENE(0x3f) = 0x00
@@ -435,46 +494,46 @@ ctx_xfer:
 	or $r10 2		// first
 	mov $r11 0x0000
 	sethi $r11 0x500000
-	ld b32 $r12 D[$r0 + gpc_id]
+	ld b32 $r12 D[$r0 + #gpc_id]
 	shl b32 $r12 15
 	add b32 $r11 $r12	// base = NV_PGRAPH_GPCn
-	ld b32 $r12 D[$r0 + gpc_mmio_list_head]
-	ld b32 $r13 D[$r0 + gpc_mmio_list_tail]
+	ld b32 $r12 D[$r0 + #gpc_mmio_list_head]
+	ld b32 $r13 D[$r0 + #gpc_mmio_list_tail]
 	mov $r14 0		// not multi
-	call mmctx_xfer
+	call #mmctx_xfer
 
 	// per-TPC mmio context
 	xbit $r10 $flags $p1	// direction
 	or $r10 4		// last
 	mov $r11 0x4000
 	sethi $r11 0x500000	// base = NV_PGRAPH_GPC0_TPC0
-	ld b32 $r12 D[$r0 + gpc_id]
+	ld b32 $r12 D[$r0 + #gpc_id]
 	shl b32 $r12 15
 	add b32 $r11 $r12	// base = NV_PGRAPH_GPCn_TPC0
-	ld b32 $r12 D[$r0 + tpc_mmio_list_head]
-	ld b32 $r13 D[$r0 + tpc_mmio_list_tail]
-	ld b32 $r15 D[$r0 + tpc_mask]
+	ld b32 $r12 D[$r0 + #tpc_mmio_list_head]
+	ld b32 $r13 D[$r0 + #tpc_mmio_list_tail]
+	ld b32 $r15 D[$r0 + #tpc_mask]
 	mov $r14 0x800		// stride = 0x800
-	call mmctx_xfer
+	call #mmctx_xfer
 
 	// wait for strands to finish
-	call strand_wait
+	call #strand_wait
 
 	// if load, or a save without a load following, do some
 	// unknown stuff that's done after finishing a block of
 	// strand commands
-	bra $p1 ctx_xfer_post
-	bra not $p2 ctx_xfer_done
+	bra $p1 #ctx_xfer_post
+	bra not $p2 #ctx_xfer_done
 	ctx_xfer_post:
 		mov $r1 0x4afc
 		sethi $r1 0x20000
 		mov $r2 0xd
 		iowr I[$r1] $r2		// STRAND_CMD(0x3f) = 0x0d
-		call strand_wait
+		call #strand_wait
 
 	// mark completion in HUB's barrier
 	ctx_xfer_done:
-	call hub_barrier_done
+	call #hub_barrier_done
 	ret
 
 .align 256
diff --git a/drivers/gpu/drm/nouveau/nvc0_grgpc.fuc.h b/drivers/gpu/drm/nouveau/nvc0_grgpc.fuc.h
index 6f820324480e..a988b8ad00ac 100644
--- a/drivers/gpu/drm/nouveau/nvc0_grgpc.fuc.h
+++ b/drivers/gpu/drm/nouveau/nvc0_grgpc.fuc.h
@@ -25,26 +25,29 @@ uint32_t nvc0_grgpc_data[] = {
 	0x00000000,
 	0x00000000,
 	0x000000c0,
-	0x011c00bc,
-	0x01700120,
+	0x012800c8,
+	0x01e40194,
 	0x000000c1,
-	0x012000bc,
-	0x01840120,
+	0x012c00c8,
+	0x01f80194,
 	0x000000c3,
-	0x011c00bc,
-	0x01800120,
+	0x012800c8,
+	0x01f40194,
 	0x000000c4,
-	0x011c00bc,
-	0x01800120,
+	0x012800c8,
+	0x01f40194,
 	0x000000c8,
-	0x011c00bc,
-	0x01700120,
+	0x012800c8,
+	0x01e40194,
 	0x000000ce,
-	0x011c00bc,
-	0x01800120,
+	0x012800c8,
+	0x01f40194,
 	0x000000cf,
-	0x011c00bc,
-	0x017c0120,
+	0x012800c8,
+	0x01f00194,
+	0x000000d9,
+	0x0194012c,
+	0x025401f8,
 	0x00000000,
 	0x00000380,
 	0x14000400,
@@ -71,6 +74,32 @@ uint32_t nvc0_grgpc_data[] = {
 	0x08001000,
 	0x00001014,
 	0x00000c6c,
+	0x00000380,
+	0x04000400,
+	0x0800040c,
+	0x20000450,
+	0x00000600,
+	0x00000684,
+	0x10000700,
+	0x00000800,
+	0x08000808,
+	0x00000828,
+	0x00000830,
+	0x000008d8,
+	0x000008e0,
+	0x140008e8,
+	0x0000091c,
+	0x08000924,
+	0x00000b00,
+	0x14000b08,
+	0x00000bb8,
+	0x00000c08,
+	0x1c000c10,
+	0x00000c6c,
+	0x00000c80,
+	0x00000c8c,
+	0x08001000,
+	0x00001014,
 	0x00000018,
 	0x0000003c,
 	0x00000048,
@@ -96,6 +125,29 @@ uint32_t nvc0_grgpc_data[] = {
 	0x000006e0,
 	0x000004bc,
 	0x00000544,
+	0x00000018,
+	0x0000003c,
+	0x00000048,
+	0x00000064,
+	0x00000088,
+	0x14000200,
+	0x0400021c,
+	0x000002c4,
+	0x14000300,
+	0x000003d0,
+	0x040003e0,
+	0x08000400,
+	0x08000420,
+	0x000004b0,
+	0x000004e8,
+	0x000004f4,
+	0x04000520,
+	0x00000544,
+	0x0c000604,
+	0x4c000644,
+	0x00000698,
+	0x000006e0,
+	0x08000750,
 };
 
 uint32_t nvc0_grgpc_code[] = {
diff --git a/drivers/gpu/drm/nouveau/nvc0_grhub.fuc b/drivers/gpu/drm/nouveau/nvc0_grhub.fuc
index e4f8c7e89ddd..98acddb2c5bb 100644
--- a/drivers/gpu/drm/nouveau/nvc0_grhub.fuc
+++ b/drivers/gpu/drm/nouveau/nvc0_grhub.fuc
@@ -27,7 +27,7 @@
  *    m4 nvc0_grhub.fuc | envyas -a -w -m fuc -V nva3 -o nvc0_grhub.fuc.h
  */
 
-.section nvc0_grhub_data
+.section #nvc0_grhub_data
 include(`nvc0_graph.fuc')
 gpc_count:		.b32 0
 rop_count:		.b32 0
@@ -39,26 +39,29 @@ ctx_current:		.b32 0
 
 chipsets:
 .b8  0xc0 0 0 0
-.b16 nvc0_hub_mmio_head
-.b16 nvc0_hub_mmio_tail
+.b16 #nvc0_hub_mmio_head
+.b16 #nvc0_hub_mmio_tail
 .b8  0xc1 0 0 0
-.b16 nvc0_hub_mmio_head
-.b16 nvc1_hub_mmio_tail
+.b16 #nvc0_hub_mmio_head
+.b16 #nvc1_hub_mmio_tail
 .b8  0xc3 0 0 0
-.b16 nvc0_hub_mmio_head
-.b16 nvc0_hub_mmio_tail
+.b16 #nvc0_hub_mmio_head
+.b16 #nvc0_hub_mmio_tail
 .b8  0xc4 0 0 0
-.b16 nvc0_hub_mmio_head
-.b16 nvc0_hub_mmio_tail
+.b16 #nvc0_hub_mmio_head
+.b16 #nvc0_hub_mmio_tail
 .b8  0xc8 0 0 0
-.b16 nvc0_hub_mmio_head
-.b16 nvc0_hub_mmio_tail
+.b16 #nvc0_hub_mmio_head
+.b16 #nvc0_hub_mmio_tail
 .b8  0xce 0 0 0
-.b16 nvc0_hub_mmio_head
-.b16 nvc0_hub_mmio_tail
+.b16 #nvc0_hub_mmio_head
+.b16 #nvc0_hub_mmio_tail
 .b8  0xcf 0 0 0
-.b16 nvc0_hub_mmio_head
-.b16 nvc0_hub_mmio_tail
+.b16 #nvc0_hub_mmio_head
+.b16 #nvc0_hub_mmio_tail
+.b8  0xd9 0 0 0
+.b16 #nvd9_hub_mmio_head
+.b16 #nvd9_hub_mmio_tail
 .b8  0 0 0 0
 
 nvc0_hub_mmio_head:
@@ -105,6 +108,48 @@ nvc0_hub_mmio_tail:
 mmctx_data(0x4064c0, 2)
 nvc1_hub_mmio_tail:
 
+nvd9_hub_mmio_head:
+mmctx_data(0x17e91c, 2)
+mmctx_data(0x400204, 2)
+mmctx_data(0x404004, 10)
+mmctx_data(0x404044, 1)
+mmctx_data(0x404094, 14)
+mmctx_data(0x4040d0, 7)
+mmctx_data(0x4040f8, 1)
+mmctx_data(0x404130, 3)
+mmctx_data(0x404150, 3)
+mmctx_data(0x404164, 2)
+mmctx_data(0x404178, 2)
+mmctx_data(0x404200, 8)
+mmctx_data(0x404404, 14)
+mmctx_data(0x404460, 4)
+mmctx_data(0x404480, 1)
+mmctx_data(0x404498, 1)
+mmctx_data(0x404604, 4)
+mmctx_data(0x404618, 32)
+mmctx_data(0x404698, 21)
+mmctx_data(0x4046f0, 2)
+mmctx_data(0x404700, 22)
+mmctx_data(0x405800, 1)
+mmctx_data(0x405830, 3)
+mmctx_data(0x405854, 1)
+mmctx_data(0x405870, 4)
+mmctx_data(0x405a00, 2)
+mmctx_data(0x405a18, 1)
+mmctx_data(0x406020, 1)
+mmctx_data(0x406028, 4)
+mmctx_data(0x4064a8, 2)
+mmctx_data(0x4064b4, 5)
+mmctx_data(0x407804, 1)
+mmctx_data(0x40780c, 6)
+mmctx_data(0x4078bc, 1)
+mmctx_data(0x408000, 7)
+mmctx_data(0x408064, 1)
+mmctx_data(0x408800, 3)
+mmctx_data(0x408900, 4)
+mmctx_data(0x408980, 1)
+nvd9_hub_mmio_tail:
+
 .align 256
 chan_data:
 chan_mmio_count:	.b32 0
@@ -113,8 +158,8 @@ chan_mmio_address:	.b32 0
 .align 256
 xfer_data: 		.b32 0
 
-.section nvc0_grhub_code
-bra init
+.section #nvc0_grhub_code
+bra #init
 define(`include_code')
 include(`nvc0_graph.fuc')
 
@@ -157,7 +202,7 @@ init:
 	iowr I[$r1 + 0x000] $r2	// FIFO_ENABLE
 
 	// setup i0 handler, and route all interrupts to it
-	mov $r1 ih
+	mov $r1 #ih
 	mov $iv0 $r1
 	mov $r1 0x400
 	iowr I[$r1 + 0x300] $r0	// INTR_DISPATCH
@@ -201,11 +246,11 @@ init:
 	// fetch enabled GPC/ROP counts
 	mov $r14 -0x69fc	// 0x409604
 	sethi $r14 0x400000
-	call nv_rd32
+	call #nv_rd32
 	extr $r1 $r15 16:20
-	st b32 D[$r0 + rop_count] $r1
+	st b32 D[$r0 + #rop_count] $r1
 	and $r15 0x1f
-	st b32 D[$r0 + gpc_count] $r15
+	st b32 D[$r0 + #gpc_count] $r15
 
 	// set BAR_REQMASK to GPC mask
 	mov $r1 1
@@ -220,14 +265,14 @@ init:
 	mov $r2 0x800
 	shl b32 $r2 6
 	iord $r2 I[$r2 + 0x000]		// CC_SCRATCH[0]
-	mov $r15 chipsets - 8
+	mov $r15 #chipsets - 8
 	init_find_chipset:
 		add b32 $r15 8
 		ld b32 $r3 D[$r15 + 0x00]
 		cmpu b32 $r3 $r2
-		bra e init_context
+		bra e #init_context
 		cmpu b32 $r3 0
-		bra ne init_find_chipset
+		bra ne #init_find_chipset
 		// unknown chipset
 		ret
 
@@ -239,9 +284,9 @@ init:
 	ld b16 $r14 D[$r15 + 4]
 	ld b16 $r15 D[$r15 + 6]
 	sethi $r14 0
-	st b32 D[$r0 + hub_mmio_list_head] $r14
-	st b32 D[$r0 + hub_mmio_list_tail] $r15
-	call mmctx_size
+	st b32 D[$r0 + #hub_mmio_list_head] $r14
+	st b32 D[$r0 + #hub_mmio_list_tail] $r15
+	call #mmctx_size
 
 	// set mmctx base addresses now so we don't have to do it later,
 	// they don't (currently) ever change
@@ -260,7 +305,7 @@ init:
 	add b32 $r1 1
 	shl b32 $r1 8
 	mov b32 $r15 $r1
-	call strand_ctx_init
+	call #strand_ctx_init
 	add b32 $r1 $r15
 
 	// initialise each GPC in sequence by passing in the offset of its
@@ -271,40 +316,40 @@ init:
 	// when it has completed, and return the size of its context data
 	// in GPCn_CC_SCRATCH[1]
 	//
-	ld b32 $r3 D[$r0 + gpc_count]
+	ld b32 $r3 D[$r0 + #gpc_count]
 	mov $r4 0x2000
 	sethi $r4 0x500000
 	init_gpc:
 		// setup, and start GPC ucode running
 		add b32 $r14 $r4 0x804
 		mov b32 $r15 $r1
-		call nv_wr32			// CC_SCRATCH[1] = ctx offset
+		call #nv_wr32			// CC_SCRATCH[1] = ctx offset
 		add b32 $r14 $r4 0x800
 		mov b32 $r15 $r2
-		call nv_wr32			// CC_SCRATCH[0] = chipset
+		call #nv_wr32			// CC_SCRATCH[0] = chipset
 		add b32 $r14 $r4 0x10c
 		clear b32 $r15
-		call nv_wr32
+		call #nv_wr32
 		add b32 $r14 $r4 0x104
-		call nv_wr32			// ENTRY
+		call #nv_wr32			// ENTRY
 		add b32 $r14 $r4 0x100
 		mov $r15 2			// CTRL_START_TRIGGER
-		call nv_wr32			// CTRL
+		call #nv_wr32			// CTRL
 
 		// wait for it to complete, and adjust context size
 		add b32 $r14 $r4 0x800
 		init_gpc_wait:
-			call nv_rd32
+			call #nv_rd32
 			xbit $r15 $r15 31
-			bra e init_gpc_wait
+			bra e #init_gpc_wait
 		add b32 $r14 $r4 0x804
-		call nv_rd32
+		call #nv_rd32
 		add b32 $r1 $r15
 
 		// next!
 		add b32 $r4 0x8000
 		sub b32 $r3 1
-		bra ne init_gpc
+		bra ne #init_gpc
 
 	// save context size, and tell host we're ready
 	mov $r2 0x800
@@ -322,13 +367,13 @@ main:
 	// sleep until we have something to do
 	bset $flags $p0
 	sleep $p0
-	mov $r13 cmd_queue
-	call queue_get
-	bra $p1 main
+	mov $r13 #cmd_queue
+	call #queue_get
+	bra $p1 #main
 
 	// context switch, requested by GPU?
 	cmpu b32 $r14 0x4001
-	bra ne main_not_ctx_switch
+	bra ne #main_not_ctx_switch
 		trace_set(T_AUTO)
 		mov $r1 0xb00
 		shl b32 $r1 6
@@ -336,39 +381,39 @@ main:
 		iord $r1 I[$r1 + 0x000]		// CHAN_CUR
 
 		xbit $r3 $r1 31
-		bra e chsw_no_prev
+		bra e #chsw_no_prev
 			xbit $r3 $r2 31
-			bra e chsw_prev_no_next
+			bra e #chsw_prev_no_next
 				push $r2
 				mov b32 $r2 $r1
 				trace_set(T_SAVE)
 				bclr $flags $p1
 				bset $flags $p2
-				call ctx_xfer
+				call #ctx_xfer
 				trace_clr(T_SAVE);
 				pop $r2
 				trace_set(T_LOAD);
 				bset $flags $p1
-				call ctx_xfer
+				call #ctx_xfer
 				trace_clr(T_LOAD);
-				bra chsw_done
+				bra #chsw_done
 			chsw_prev_no_next:
 				push $r2
 				mov b32 $r2 $r1
 				bclr $flags $p1
 				bclr $flags $p2
-				call ctx_xfer
+				call #ctx_xfer
 				pop $r2
 				mov $r1 0xb00
 				shl b32 $r1 6
 				iowr I[$r1] $r2
-				bra chsw_done
+				bra #chsw_done
 		chsw_no_prev:
 			xbit $r3 $r2 31
-			bra e chsw_done
+			bra e #chsw_done
 				bset $flags $p1
 				bclr $flags $p2
-				call ctx_xfer
+				call #ctx_xfer
 
 		// ack the context switch request
 		chsw_done:
@@ -377,32 +422,32 @@ main:
 		mov $r2 1
 		iowr I[$r1 + 0x000] $r2		// 0x409b0c
 		trace_clr(T_AUTO)
-		bra main
+		bra #main
 
 	// request to set current channel? (*not* a context switch)
 	main_not_ctx_switch:
 	cmpu b32 $r14 0x0001
-	bra ne main_not_ctx_chan
+	bra ne #main_not_ctx_chan
 		mov b32 $r2 $r15
-		call ctx_chan
-		bra main_done
+		call #ctx_chan
+		bra #main_done
 
 	// request to store current channel context?
 	main_not_ctx_chan:
 	cmpu b32 $r14 0x0002
-	bra ne main_not_ctx_save
+	bra ne #main_not_ctx_save
 		trace_set(T_SAVE)
 		bclr $flags $p1
 		bclr $flags $p2
-		call ctx_xfer
+		call #ctx_xfer
 		trace_clr(T_SAVE)
-		bra main_done
+		bra #main_done
 
 	main_not_ctx_save:
 		shl b32 $r15 $r14 16
 		or $r15 E_BAD_COMMAND
-		call error
-		bra main
+		call #error
+		bra #main
 
 	main_done:
 	mov $r1 0x820
@@ -410,7 +455,7 @@ main:
 	clear b32 $r2
 	bset $r2 31
 	iowr I[$r1 + 0x000] $r2		// CC_SCRATCH[0] |= 0x80000000
-	bra main
+	bra #main
 
 // interrupt handler
 ih:
@@ -427,13 +472,13 @@ ih:
 	// incoming fifo command?
 	iord $r10 I[$r0 + 0x200]	// INTR
 	and $r11 $r10 0x00000004
-	bra e ih_no_fifo
+	bra e #ih_no_fifo
 		// queue incoming fifo command for later processing
 		mov $r11 0x1900
-		mov $r13 cmd_queue
+		mov $r13 #cmd_queue
 		iord $r14 I[$r11 + 0x100]	// FIFO_CMD
 		iord $r15 I[$r11 + 0x000]	// FIFO_DATA
-		call queue_put
+		call #queue_put
 		add b32 $r11 0x400
 		mov $r14 1
 		iowr I[$r11 + 0x000] $r14	// FIFO_ACK
@@ -441,18 +486,18 @@ ih:
 	// context switch request?
 	ih_no_fifo:
 	and $r11 $r10 0x00000100
-	bra e ih_no_ctxsw
+	bra e #ih_no_ctxsw
 		// enqueue a context switch for later processing
-		mov $r13 cmd_queue
+		mov $r13 #cmd_queue
 		mov $r14 0x4001
-		call queue_put
+		call #queue_put
 
 	// anything we didn't handle, bring it to the host's attention
 	ih_no_ctxsw:
 	mov $r11 0x104
 	not b32 $r11
 	and $r11 $r10 $r11
-	bra e ih_no_other
+	bra e #ih_no_other
 		mov $r10 0xc1c
 		shl b32 $r10 6
 		iowr I[$r10] $r11	// INTR_UP_SET
@@ -478,11 +523,11 @@ ctx_4160s:
 	mov $r14 0x4160
 	sethi $r14 0x400000
 	mov $r15 1
-	call nv_wr32
+	call #nv_wr32
 	ctx_4160s_wait:
-		call nv_rd32
+		call #nv_rd32
 		xbit $r15 $r15 4
-		bra e ctx_4160s_wait
+		bra e #ctx_4160s_wait
 	ret
 
 // Without clearing again at end of xfer, some things cause PGRAPH
@@ -492,7 +537,7 @@ ctx_4160c:
 	mov $r14 0x4160
 	sethi $r14 0x400000
 	clear b32 $r15
-	call nv_wr32
+	call #nv_wr32
 	ret
 
 // Again, not real sure
@@ -503,7 +548,7 @@ ctx_4170s:
 	mov $r14 0x4170
 	sethi $r14 0x400000
 	or $r15 0x10
-	call nv_wr32
+	call #nv_wr32
 	ret
 
 // Waits for a ctx_4170s() call to complete
@@ -511,9 +556,9 @@ ctx_4170s:
 ctx_4170w:
 	mov $r14 0x4170
 	sethi $r14 0x400000
-	call nv_rd32
+	call #nv_rd32
 	and $r15 0x10
-	bra ne ctx_4170w
+	bra ne #ctx_4170w
 	ret
 
 // Disables various things, waits a bit, and re-enables them..
@@ -530,7 +575,7 @@ ctx_redswitch:
 	mov $r15 8
 	ctx_redswitch_delay:
 		sub b32 $r15 1
-		bra ne ctx_redswitch_delay
+		bra ne #ctx_redswitch_delay
 	mov $r15 0x770
 	iowr I[$r14] $r15	// HUB_RED_SWITCH = ENABLE_ALL, POWER_ALL
 	ret
@@ -546,10 +591,10 @@ ctx_86c:
 	iowr I[$r14] $r15	// HUB(0x86c) = val
 	mov $r14 -0x75ec
 	sethi $r14 0x400000
-	call nv_wr32		// ROP(0xa14) = val
+	call #nv_wr32		// ROP(0xa14) = val
 	mov $r14 -0x5794
 	sethi $r14 0x410000
-	call nv_wr32		// GPC(0x86c) = val
+	call #nv_wr32		// GPC(0x86c) = val
 	ret
 
 // ctx_load - load's a channel's ctxctl data, and selects its vm
@@ -561,7 +606,7 @@ ctx_load:
 
 	// switch to channel, somewhat magic in parts..
 	mov $r10 12		// DONE_UNK12
-	call wait_donez
+	call #wait_donez
 	mov $r1 0xa24
 	shl b32 $r1 6
 	iowr I[$r1 + 0x000] $r0	// 0x409a24
@@ -576,7 +621,7 @@ ctx_load:
 	ctx_chan_wait_0:
 		iord $r4 I[$r1 + 0x100]
 		and $r4 0x1f
-		bra ne ctx_chan_wait_0
+		bra ne #ctx_chan_wait_0
 	iowr I[$r3 + 0x000] $r2	// CHAN_CUR
 
 	// load channel header, fetch PGRAPH context pointer
@@ -595,19 +640,19 @@ ctx_load:
 	sethi $r2 0x80000000
 	iowr I[$r1 + 0x000] $r2		// MEM_TARGET = vram
 	mov $r1 0x10			// chan + 0x0210
-	mov $r2 xfer_data
+	mov $r2 #xfer_data
 	sethi $r2 0x00020000		// 16 bytes
 	xdld $r1 $r2
 	xdwait
 	trace_clr(T_LCHAN)
 
 	// update current context
-	ld b32 $r1 D[$r0 + xfer_data + 4]
+	ld b32 $r1 D[$r0 + #xfer_data + 4]
 	shl b32 $r1 24
-	ld b32 $r2 D[$r0 + xfer_data + 0]
+	ld b32 $r2 D[$r0 + #xfer_data + 0]
 	shr b32 $r2 8
 	or $r1 $r2
-	st b32 D[$r0 + ctx_current] $r1
+	st b32 D[$r0 + #ctx_current] $r1
 
 	// set transfer base to start of context, and fetch context header
 	trace_set(T_LCTXH)
@@ -618,7 +663,7 @@ ctx_load:
 	mov $r1 0xa20
 	shl b32 $r1 6
 	iowr I[$r1 + 0x000] $r2		// MEM_TARGET = vm
-	mov $r1 chan_data
+	mov $r1 #chan_data
 	sethi $r1 0x00060000		// 256 bytes
 	xdld $r0 $r1
 	xdwait
@@ -635,10 +680,10 @@ ctx_load:
 // In: $r2 channel address
 //
 ctx_chan:
-	call ctx_4160s
-	call ctx_load
+	call #ctx_4160s
+	call #ctx_load
 	mov $r10 12			// DONE_UNK12
-	call wait_donez
+	call #wait_donez
 	mov $r1 0xa10
 	shl b32 $r1 6
 	mov $r2 5
@@ -646,8 +691,8 @@ ctx_chan:
 	ctx_chan_wait:
 		iord $r2 I[$r1 + 0x000]
 		or $r2 $r2
-		bra ne ctx_chan_wait
-	call ctx_4160c
+		bra ne #ctx_chan_wait
+	call #ctx_4160c
 	ret
 
 // Execute per-context state overrides list
@@ -661,7 +706,7 @@ ctx_chan:
 //
 ctx_mmio_exec:
 	// set transfer base to be the mmio list
-	ld b32 $r3 D[$r0 + chan_mmio_address]
+	ld b32 $r3 D[$r0 + #chan_mmio_address]
 	mov $r2 0xa04
 	shl b32 $r2 6
 	iowr I[$r2 + 0x000] $r3		// MEM_BASE
@@ -670,31 +715,31 @@ ctx_mmio_exec:
 	ctx_mmio_loop:
 		// fetch next 256 bytes of mmio list if necessary
 		and $r4 $r3 0xff
-		bra ne ctx_mmio_pull
-			mov $r5 xfer_data
+		bra ne #ctx_mmio_pull
+			mov $r5 #xfer_data
 			sethi $r5 0x00060000	// 256 bytes
 			xdld $r3 $r5
 			xdwait
 
 		// execute a single list entry
 		ctx_mmio_pull:
-		ld b32 $r14 D[$r4 + xfer_data + 0x00]
-		ld b32 $r15 D[$r4 + xfer_data + 0x04]
-		call nv_wr32
+		ld b32 $r14 D[$r4 + #xfer_data + 0x00]
+		ld b32 $r15 D[$r4 + #xfer_data + 0x04]
+		call #nv_wr32
 
 		// next!
 		add b32 $r3 8
 		sub b32 $r1 1
-		bra ne ctx_mmio_loop
+		bra ne #ctx_mmio_loop
 
 	// set transfer base back to the current context
 	ctx_mmio_done:
-	ld b32 $r3 D[$r0 + ctx_current]
+	ld b32 $r3 D[$r0 + #ctx_current]
 	iowr I[$r2 + 0x000] $r3		// MEM_BASE
 
 	// disable the mmio list now, we don't need/want to execute it again
-	st b32 D[$r0 + chan_mmio_count] $r0
-	mov $r1 chan_data
+	st b32 D[$r0 + #chan_mmio_count] $r0
+	mov $r1 #chan_data
 	sethi $r1 0x00060000		// 256 bytes
 	xdst $r0 $r1
 	xdwait
@@ -709,46 +754,46 @@ ctx_mmio_exec:
 //		on load it means: "a save preceeded this load"
 //
 ctx_xfer:
-	bra not $p1 ctx_xfer_pre
-	bra $p2 ctx_xfer_pre_load
+	bra not $p1 #ctx_xfer_pre
+	bra $p2 #ctx_xfer_pre_load
 	ctx_xfer_pre:
 		mov $r15 0x10
-		call ctx_86c
-		call ctx_4160s
-		bra not $p1 ctx_xfer_exec
+		call #ctx_86c
+		call #ctx_4160s
+		bra not $p1 #ctx_xfer_exec
 
 	ctx_xfer_pre_load:
 		mov $r15 2
-		call ctx_4170s
-		call ctx_4170w
-		call ctx_redswitch
+		call #ctx_4170s
+		call #ctx_4170w
+		call #ctx_redswitch
 		clear b32 $r15
-		call ctx_4170s
-		call ctx_load
+		call #ctx_4170s
+		call #ctx_load
 
 	// fetch context pointer, and initiate xfer on all GPCs
 	ctx_xfer_exec:
-	ld b32 $r1 D[$r0 + ctx_current]
+	ld b32 $r1 D[$r0 + #ctx_current]
 	mov $r2 0x414
 	shl b32 $r2 6
 	iowr I[$r2 + 0x000] $r0	// BAR_STATUS = reset
 	mov $r14 -0x5b00
 	sethi $r14 0x410000
 	mov b32 $r15 $r1
-	call nv_wr32		// GPC_BCAST_WRCMD_DATA = ctx pointer
+	call #nv_wr32		// GPC_BCAST_WRCMD_DATA = ctx pointer
 	add b32 $r14 4
 	xbit $r15 $flags $p1
 	xbit $r2 $flags $p2
 	shl b32 $r2 1
 	or $r15 $r2
-	call nv_wr32		// GPC_BCAST_WRCMD_CMD = GPC_XFER(type)
+	call #nv_wr32		// GPC_BCAST_WRCMD_CMD = GPC_XFER(type)
 
 	// strands
 	mov $r1 0x4afc
 	sethi $r1 0x20000
 	mov $r2 0xc
 	iowr I[$r1] $r2		// STRAND_CMD(0x3f) = 0x0c
-	call strand_wait
+	call #strand_wait
 	mov $r2 0x47fc
 	sethi $r2 0x20000
 	iowr I[$r2] $r0		// STRAND_FIRST_GENE(0x3f) = 0x00
@@ -760,22 +805,22 @@ ctx_xfer:
 	xbit $r10 $flags $p1	// direction
 	or $r10 6		// first, last
 	mov $r11 0		// base = 0
-	ld b32 $r12 D[$r0 + hub_mmio_list_head]
-	ld b32 $r13 D[$r0 + hub_mmio_list_tail]
+	ld b32 $r12 D[$r0 + #hub_mmio_list_head]
+	ld b32 $r13 D[$r0 + #hub_mmio_list_tail]
 	mov $r14 0		// not multi
-	call mmctx_xfer
+	call #mmctx_xfer
 
 	// wait for GPCs to all complete
 	mov $r10 8		// DONE_BAR
-	call wait_doneo
+	call #wait_doneo
 
 	// wait for strand xfer to complete
-	call strand_wait
+	call #strand_wait
 
 	// post-op
-	bra $p1 ctx_xfer_post
+	bra $p1 #ctx_xfer_post
 		mov $r10 12		// DONE_UNK12
-		call wait_donez
+		call #wait_donez
 		mov $r1 0xa10
 		shl b32 $r1 6
 		mov $r2 5
@@ -783,27 +828,27 @@ ctx_xfer:
 		ctx_xfer_post_save_wait:
 			iord $r2 I[$r1]
 			or $r2 $r2
-			bra ne ctx_xfer_post_save_wait
+			bra ne #ctx_xfer_post_save_wait
 
-	bra $p2 ctx_xfer_done
+	bra $p2 #ctx_xfer_done
 	ctx_xfer_post:
 		mov $r15 2
-		call ctx_4170s
+		call #ctx_4170s
 		clear b32 $r15
-		call ctx_86c
-		call strand_post
-		call ctx_4170w
+		call #ctx_86c
+		call #strand_post
+		call #ctx_4170w
 		clear b32 $r15
-		call ctx_4170s
+		call #ctx_4170s
 
-		bra not $p1 ctx_xfer_no_post_mmio
-		ld b32 $r1 D[$r0 + chan_mmio_count]
+		bra not $p1 #ctx_xfer_no_post_mmio
+		ld b32 $r1 D[$r0 + #chan_mmio_count]
 		or $r1 $r1
-		bra e ctx_xfer_no_post_mmio
-			call ctx_mmio_exec
+		bra e #ctx_xfer_no_post_mmio
+			call #ctx_mmio_exec
 
 		ctx_xfer_no_post_mmio:
-		call ctx_4160c
+		call #ctx_4160c
 
 	ctx_xfer_done:
 	ret
diff --git a/drivers/gpu/drm/nouveau/nvc0_grhub.fuc.h b/drivers/gpu/drm/nouveau/nvc0_grhub.fuc.h
index 241d3263f1e5..c5ed307abeb9 100644
--- a/drivers/gpu/drm/nouveau/nvc0_grhub.fuc.h
+++ b/drivers/gpu/drm/nouveau/nvc0_grhub.fuc.h
@@ -23,19 +23,21 @@ uint32_t nvc0_grhub_data[] = {
 	0x00000000,
 	0x00000000,
 	0x000000c0,
-	0x01340098,
+	0x013c00a0,
 	0x000000c1,
-	0x01380098,
+	0x014000a0,
 	0x000000c3,
-	0x01340098,
+	0x013c00a0,
 	0x000000c4,
-	0x01340098,
+	0x013c00a0,
 	0x000000c8,
-	0x01340098,
+	0x013c00a0,
 	0x000000ce,
-	0x01340098,
+	0x013c00a0,
 	0x000000cf,
-	0x01340098,
+	0x013c00a0,
+	0x000000d9,
+	0x01dc0140,
 	0x00000000,
 	0x0417e91c,
 	0x04400204,
@@ -77,47 +79,45 @@ uint32_t nvc0_grhub_data[] = {
 	0x0c408900,
 	0x00408980,
 	0x044064c0,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
-	0x00000000,
+	0x0417e91c,
+	0x04400204,
+	0x24404004,
+	0x00404044,
+	0x34404094,
+	0x184040d0,
+	0x004040f8,
+	0x08404130,
+	0x08404150,
+	0x04404164,
+	0x04404178,
+	0x1c404200,
+	0x34404404,
+	0x0c404460,
+	0x00404480,
+	0x00404498,
+	0x0c404604,
+	0x7c404618,
+	0x50404698,
+	0x044046f0,
+	0x54404700,
+	0x00405800,
+	0x08405830,
+	0x00405854,
+	0x0c405870,
+	0x04405a00,
+	0x00405a18,
+	0x00406020,
+	0x0c406028,
+	0x044064a8,
+	0x104064b4,
+	0x00407804,
+	0x1440780c,
+	0x004078bc,
+	0x18408000,
+	0x00408064,
+	0x08408800,
+	0x0c408900,
+	0x00408980,
 	0x00000000,
 	0x00000000,
 	0x00000000,
diff --git a/drivers/gpu/drm/nouveau/nvc0_pm.c b/drivers/gpu/drm/nouveau/nvc0_pm.c
index 929aded35cb5..e9992f62c1c0 100644
--- a/drivers/gpu/drm/nouveau/nvc0_pm.c
+++ b/drivers/gpu/drm/nouveau/nvc0_pm.c
@@ -153,3 +153,240 @@ nvc0_pm_clocks_get(struct drm_device *dev, struct nouveau_pm_level *perflvl)
 	perflvl->vdec   = read_clk(dev, 0x0e);
 	return 0;
 }
+
+struct nvc0_pm_clock {
+	u32 freq;
+	u32 ssel;
+	u32 mdiv;
+	u32 dsrc;
+	u32 ddiv;
+	u32 coef;
+};
+
+struct nvc0_pm_state {
+	struct nvc0_pm_clock eng[16];
+};
+
+static u32
+calc_div(struct drm_device *dev, int clk, u32 ref, u32 freq, u32 *ddiv)
+{
+	u32 div = min((ref * 2) / freq, (u32)65);
+	if (div < 2)
+		div = 2;
+
+	*ddiv = div - 2;
+	return (ref * 2) / div;
+}
+
+static u32
+calc_src(struct drm_device *dev, int clk, u32 freq, u32 *dsrc, u32 *ddiv)
+{
+	u32 sclk;
+
+	/* use one of the fixed frequencies if possible */
+	*ddiv = 0x00000000;
+	switch (freq) {
+	case  27000:
+	case 108000:
+		*dsrc = 0x00000000;
+		if (freq == 108000)
+			*dsrc |= 0x00030000;
+		return freq;
+	case 100000:
+		*dsrc = 0x00000002;
+		return freq;
+	default:
+		*dsrc = 0x00000003;
+		break;
+	}
+
+	/* otherwise, calculate the closest divider */
+	sclk = read_vco(dev, clk);
+	if (clk < 7)
+		sclk = calc_div(dev, clk, sclk, freq, ddiv);
+	return sclk;
+}
+
+static u32
+calc_pll(struct drm_device *dev, int clk, u32 freq, u32 *coef)
+{
+	struct pll_lims limits;
+	int N, M, P, ret;
+
+	ret = get_pll_limits(dev, 0x137000 + (clk * 0x20), &limits);
+	if (ret)
+		return 0;
+
+	limits.refclk = read_div(dev, clk, 0x137120, 0x137140);
+	if (!limits.refclk)
+		return 0;
+
+	ret = nva3_calc_pll(dev, &limits, freq, &N, NULL, &M, &P);
+	if (ret <= 0)
+		return 0;
+
+	*coef = (P << 16) | (N << 8) | M;
+	return ret;
+}
+
+/* A (likely rather simplified and incomplete) view of the clock tree
+ *
+ * Key:
+ *
+ * S: source select
+ * D: divider
+ * P: pll
+ * F: switch
+ *
+ * Engine clocks:
+ *
+ * 137250(D) ---- 137100(F0) ---- 137160(S)/1371d0(D) ------------------- ref
+ *                      (F1) ---- 1370X0(P) ---- 137120(S)/137140(D) ---- ref
+ *
+ * Not all registers exist for all clocks.  For example: clocks >= 8 don't
+ * have their own PLL (all tied to clock 7's PLL when in PLL mode), nor do
+ * they have the divider at 1371d0, though the source selection at 137160
+ * still exists.  You must use the divider at 137250 for these instead.
+ *
+ * Memory clock:
+ *
+ * TBD, read_mem() above is likely very wrong...
+ *
+ */
+
+static int
+calc_clk(struct drm_device *dev, int clk, struct nvc0_pm_clock *info, u32 freq)
+{
+	u32 src0, div0, div1D, div1P = 0;
+	u32 clk0, clk1 = 0;
+
+	/* invalid clock domain */
+	if (!freq)
+		return 0;
+
+	/* first possible path, using only dividers */
+	clk0 = calc_src(dev, clk, freq, &src0, &div0);
+	clk0 = calc_div(dev, clk, clk0, freq, &div1D);
+
+	/* see if we can get any closer using PLLs */
+	if (clk0 != freq) {
+		if (clk < 7)
+			clk1 = calc_pll(dev, clk, freq, &info->coef);
+		else
+			clk1 = read_pll(dev, 0x1370e0);
+		clk1 = calc_div(dev, clk, clk1, freq, &div1P);
+	}
+
+	/* select the method which gets closest to target freq */
+	if (abs((int)freq - clk0) <= abs((int)freq - clk1)) {
+		info->dsrc = src0;
+		if (div0) {
+			info->ddiv |= 0x80000000;
+			info->ddiv |= div0 << 8;
+			info->ddiv |= div0;
+		}
+		if (div1D) {
+			info->mdiv |= 0x80000000;
+			info->mdiv |= div1D;
+		}
+		info->ssel = 0;
+		info->freq = clk0;
+	} else {
+		if (div1P) {
+			info->mdiv |= 0x80000000;
+			info->mdiv |= div1P << 8;
+		}
+		info->ssel = (1 << clk);
+		info->freq = clk1;
+	}
+
+	return 0;
+}
+
+void *
+nvc0_pm_clocks_pre(struct drm_device *dev, struct nouveau_pm_level *perflvl)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+	struct nvc0_pm_state *info;
+	int ret;
+
+	info = kzalloc(sizeof(*info), GFP_KERNEL);
+	if (!info)
+		return ERR_PTR(-ENOMEM);
+
+	/* NFI why this is still in the performance table, the ROPCs appear
+	 * to get their clock from clock 2 ("hub07", actually hub05 on this
+	 * chip, but, anyway...) as well.  nvatiming confirms hub05 and ROP
+	 * are always the same freq with the binary driver even when the
+	 * performance table says they should differ.
+	 */
+	if (dev_priv->chipset == 0xd9)
+		perflvl->rop = 0;
+
+	if ((ret = calc_clk(dev, 0x00, &info->eng[0x00], perflvl->shader)) ||
+	    (ret = calc_clk(dev, 0x01, &info->eng[0x01], perflvl->rop)) ||
+	    (ret = calc_clk(dev, 0x02, &info->eng[0x02], perflvl->hub07)) ||
+	    (ret = calc_clk(dev, 0x07, &info->eng[0x07], perflvl->hub06)) ||
+	    (ret = calc_clk(dev, 0x08, &info->eng[0x08], perflvl->hub01)) ||
+	    (ret = calc_clk(dev, 0x09, &info->eng[0x09], perflvl->copy)) ||
+	    (ret = calc_clk(dev, 0x0c, &info->eng[0x0c], perflvl->daemon)) ||
+	    (ret = calc_clk(dev, 0x0e, &info->eng[0x0e], perflvl->vdec))) {
+		kfree(info);
+		return ERR_PTR(ret);
+	}
+
+	return info;
+}
+
+static void
+prog_clk(struct drm_device *dev, int clk, struct nvc0_pm_clock *info)
+{
+	/* program dividers at 137160/1371d0 first */
+	if (clk < 7 && !info->ssel) {
+		nv_mask(dev, 0x1371d0 + (clk * 0x04), 0x80003f3f, info->ddiv);
+		nv_wr32(dev, 0x137160 + (clk * 0x04), info->dsrc);
+	}
+
+	/* switch clock to non-pll mode */
+	nv_mask(dev, 0x137100, (1 << clk), 0x00000000);
+	nv_wait(dev, 0x137100, (1 << clk), 0x00000000);
+
+	/* reprogram pll */
+	if (clk < 7) {
+		/* make sure it's disabled first... */
+		u32 base = 0x137000 + (clk * 0x20);
+		u32 ctrl = nv_rd32(dev, base + 0x00);
+		if (ctrl & 0x00000001) {
+			nv_mask(dev, base + 0x00, 0x00000004, 0x00000000);
+			nv_mask(dev, base + 0x00, 0x00000001, 0x00000000);
+		}
+		/* program it to new values, if necessary */
+		if (info->ssel) {
+			nv_wr32(dev, base + 0x04, info->coef);
+			nv_mask(dev, base + 0x00, 0x00000001, 0x00000001);
+			nv_wait(dev, base + 0x00, 0x00020000, 0x00020000);
+			nv_mask(dev, base + 0x00, 0x00020004, 0x00000004);
+		}
+	}
+
+	/* select pll/non-pll mode, and program final clock divider */
+	nv_mask(dev, 0x137100, (1 << clk), info->ssel);
+	nv_wait(dev, 0x137100, (1 << clk), info->ssel);
+	nv_mask(dev, 0x137250 + (clk * 0x04), 0x00003f3f, info->mdiv);
+}
+
+int
+nvc0_pm_clocks_set(struct drm_device *dev, void *data)
+{
+	struct nvc0_pm_state *info = data;
+	int i;
+
+	for (i = 0; i < 16; i++) {
+		if (!info->eng[i].freq)
+			continue;
+		prog_clk(dev, i, &info->eng[i]);
+	}
+
+	kfree(info);
+	return 0;
+}
diff --git a/drivers/gpu/drm/nouveau/nvd0_display.c b/drivers/gpu/drm/nouveau/nvd0_display.c
index cb006a718e70..d2ba2f07400b 100644
--- a/drivers/gpu/drm/nouveau/nvd0_display.c
+++ b/drivers/gpu/drm/nouveau/nvd0_display.c
@@ -35,12 +35,34 @@
 #include "nouveau_fb.h"
 #include "nv50_display.h"
 
+#define EVO_DMA_NR 9
+
+#define EVO_MASTER  (0x00)
+#define EVO_FLIP(c) (0x01 + (c))
+#define EVO_OVLY(c) (0x05 + (c))
+#define EVO_OIMM(c) (0x09 + (c))
+#define EVO_CURS(c) (0x0d + (c))
+
+/* offsets in shared sync bo of various structures */
+#define EVO_SYNC(c, o) ((c) * 0x0100 + (o))
+#define EVO_MAST_NTFY     EVO_SYNC(  0, 0x00)
+#define EVO_FLIP_SEM0(c)  EVO_SYNC((c), 0x00)
+#define EVO_FLIP_SEM1(c)  EVO_SYNC((c), 0x10)
+
+struct evo {
+	int idx;
+	dma_addr_t handle;
+	u32 *ptr;
+	struct {
+		u32 offset;
+		u16 value;
+	} sem;
+};
+
 struct nvd0_display {
 	struct nouveau_gpuobj *mem;
-	struct {
-		dma_addr_t handle;
-		u32 *ptr;
-	} evo[1];
+	struct nouveau_bo *sync;
+	struct evo evo[9];
 
 	struct tasklet_struct tasklet;
 	u32 modeset;
@@ -53,6 +75,15 @@ nvd0_display(struct drm_device *dev)
 	return dev_priv->engine.display.priv;
 }
 
+static struct drm_crtc *
+nvd0_display_crtc_get(struct drm_encoder *encoder)
+{
+	return nouveau_encoder(encoder)->crtc;
+}
+
+/******************************************************************************
+ * EVO channel helpers
+ *****************************************************************************/
 static inline int
 evo_icmd(struct drm_device *dev, int id, u32 mthd, u32 data)
 {
@@ -84,6 +115,9 @@ evo_wait(struct drm_device *dev, int id, int nr)
 		put = 0;
 	}
 
+	if (nouveau_reg_debug & NOUVEAU_REG_DEBUG_EVO)
+		NV_INFO(dev, "Evo%d: %p START\n", id, disp->evo[id].ptr + put);
+
 	return disp->evo[id].ptr + put;
 }
 
@@ -91,40 +125,264 @@ static void
 evo_kick(u32 *push, struct drm_device *dev, int id)
 {
 	struct nvd0_display *disp = nvd0_display(dev);
+
+	if (nouveau_reg_debug & NOUVEAU_REG_DEBUG_EVO) {
+		u32 curp = nv_rd32(dev, 0x640000 + (id * 0x1000)) >> 2;
+		u32 *cur = disp->evo[id].ptr + curp;
+
+		while (cur < push)
+			NV_INFO(dev, "Evo%d: 0x%08x\n", id, *cur++);
+		NV_INFO(dev, "Evo%d: %p KICK!\n", id, push);
+	}
+
 	nv_wr32(dev, 0x640000 + (id * 0x1000), (push - disp->evo[id].ptr) << 2);
 }
 
 #define evo_mthd(p,m,s) *((p)++) = (((s) << 18) | (m))
 #define evo_data(p,d)   *((p)++) = (d)
 
-static struct drm_crtc *
-nvd0_display_crtc_get(struct drm_encoder *encoder)
+static int
+evo_init_dma(struct drm_device *dev, int ch)
 {
-	return nouveau_encoder(encoder)->crtc;
+	struct nvd0_display *disp = nvd0_display(dev);
+	u32 flags;
+
+	flags = 0x00000000;
+	if (ch == EVO_MASTER)
+		flags |= 0x01000000;
+
+	nv_wr32(dev, 0x610494 + (ch * 0x0010), (disp->evo[ch].handle >> 8) | 3);
+	nv_wr32(dev, 0x610498 + (ch * 0x0010), 0x00010000);
+	nv_wr32(dev, 0x61049c + (ch * 0x0010), 0x00000001);
+	nv_mask(dev, 0x610490 + (ch * 0x0010), 0x00000010, 0x00000010);
+	nv_wr32(dev, 0x640000 + (ch * 0x1000), 0x00000000);
+	nv_wr32(dev, 0x610490 + (ch * 0x0010), 0x00000013 | flags);
+	if (!nv_wait(dev, 0x610490 + (ch * 0x0010), 0x80000000, 0x00000000)) {
+		NV_ERROR(dev, "PDISP: ch%d 0x%08x\n", ch,
+			      nv_rd32(dev, 0x610490 + (ch * 0x0010)));
+		return -EBUSY;
+	}
+
+	nv_mask(dev, 0x610090, (1 << ch), (1 << ch));
+	nv_mask(dev, 0x6100a0, (1 << ch), (1 << ch));
+	return 0;
+}
+
+static void
+evo_fini_dma(struct drm_device *dev, int ch)
+{
+	if (!(nv_rd32(dev, 0x610490 + (ch * 0x0010)) & 0x00000010))
+		return;
+
+	nv_mask(dev, 0x610490 + (ch * 0x0010), 0x00000010, 0x00000000);
+	nv_mask(dev, 0x610490 + (ch * 0x0010), 0x00000003, 0x00000000);
+	nv_wait(dev, 0x610490 + (ch * 0x0010), 0x80000000, 0x00000000);
+	nv_mask(dev, 0x610090, (1 << ch), 0x00000000);
+	nv_mask(dev, 0x6100a0, (1 << ch), 0x00000000);
+}
+
+static inline void
+evo_piow(struct drm_device *dev, int ch, u16 mthd, u32 data)
+{
+	nv_wr32(dev, 0x640000 + (ch * 0x1000) + mthd, data);
+}
+
+static int
+evo_init_pio(struct drm_device *dev, int ch)
+{
+	nv_wr32(dev, 0x610490 + (ch * 0x0010), 0x00000001);
+	if (!nv_wait(dev, 0x610490 + (ch * 0x0010), 0x00010000, 0x00010000)) {
+		NV_ERROR(dev, "PDISP: ch%d 0x%08x\n", ch,
+			      nv_rd32(dev, 0x610490 + (ch * 0x0010)));
+		return -EBUSY;
+	}
+
+	nv_mask(dev, 0x610090, (1 << ch), (1 << ch));
+	nv_mask(dev, 0x6100a0, (1 << ch), (1 << ch));
+	return 0;
+}
+
+static void
+evo_fini_pio(struct drm_device *dev, int ch)
+{
+	if (!(nv_rd32(dev, 0x610490 + (ch * 0x0010)) & 0x00000001))
+		return;
+
+	nv_mask(dev, 0x610490 + (ch * 0x0010), 0x00000010, 0x00000010);
+	nv_mask(dev, 0x610490 + (ch * 0x0010), 0x00000001, 0x00000000);
+	nv_wait(dev, 0x610490 + (ch * 0x0010), 0x00010000, 0x00000000);
+	nv_mask(dev, 0x610090, (1 << ch), 0x00000000);
+	nv_mask(dev, 0x6100a0, (1 << ch), 0x00000000);
+}
+
+static bool
+evo_sync_wait(void *data)
+{
+	return nouveau_bo_rd32(data, EVO_MAST_NTFY) != 0x00000000;
+}
+
+static int
+evo_sync(struct drm_device *dev, int ch)
+{
+	struct nvd0_display *disp = nvd0_display(dev);
+	u32 *push = evo_wait(dev, ch, 8);
+	if (push) {
+		nouveau_bo_wr32(disp->sync, EVO_MAST_NTFY, 0x00000000);
+		evo_mthd(push, 0x0084, 1);
+		evo_data(push, 0x80000000 | EVO_MAST_NTFY);
+		evo_mthd(push, 0x0080, 2);
+		evo_data(push, 0x00000000);
+		evo_data(push, 0x00000000);
+		evo_kick(push, dev, ch);
+		if (nv_wait_cb(dev, evo_sync_wait, disp->sync))
+			return 0;
+	}
+
+	return -EBUSY;
+}
+
+/******************************************************************************
+ * Page flipping channel
+ *****************************************************************************/
+struct nouveau_bo *
+nvd0_display_crtc_sema(struct drm_device *dev, int crtc)
+{
+	return nvd0_display(dev)->sync;
+}
+
+void
+nvd0_display_flip_stop(struct drm_crtc *crtc)
+{
+	struct nvd0_display *disp = nvd0_display(crtc->dev);
+	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
+	struct evo *evo = &disp->evo[EVO_FLIP(nv_crtc->index)];
+	u32 *push;
+
+	push = evo_wait(crtc->dev, evo->idx, 8);
+	if (push) {
+		evo_mthd(push, 0x0084, 1);
+		evo_data(push, 0x00000000);
+		evo_mthd(push, 0x0094, 1);
+		evo_data(push, 0x00000000);
+		evo_mthd(push, 0x00c0, 1);
+		evo_data(push, 0x00000000);
+		evo_mthd(push, 0x0080, 1);
+		evo_data(push, 0x00000000);
+		evo_kick(push, crtc->dev, evo->idx);
+	}
+}
+
+int
+nvd0_display_flip_next(struct drm_crtc *crtc, struct drm_framebuffer *fb,
+		       struct nouveau_channel *chan, u32 swap_interval)
+{
+	struct nouveau_framebuffer *nv_fb = nouveau_framebuffer(fb);
+	struct nvd0_display *disp = nvd0_display(crtc->dev);
+	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
+	struct evo *evo = &disp->evo[EVO_FLIP(nv_crtc->index)];
+	u64 offset;
+	u32 *push;
+	int ret;
+
+	swap_interval <<= 4;
+	if (swap_interval == 0)
+		swap_interval |= 0x100;
+
+	push = evo_wait(crtc->dev, evo->idx, 128);
+	if (unlikely(push == NULL))
+		return -EBUSY;
+
+	/* synchronise with the rendering channel, if necessary */
+	if (likely(chan)) {
+		ret = RING_SPACE(chan, 10);
+		if (ret)
+			return ret;
+
+		offset  = chan->dispc_vma[nv_crtc->index].offset;
+		offset += evo->sem.offset;
+
+		BEGIN_NVC0(chan, 2, NvSubM2MF, 0x0010, 4);
+		OUT_RING  (chan, upper_32_bits(offset));
+		OUT_RING  (chan, lower_32_bits(offset));
+		OUT_RING  (chan, 0xf00d0000 | evo->sem.value);
+		OUT_RING  (chan, 0x1002);
+		BEGIN_NVC0(chan, 2, NvSubM2MF, 0x0010, 4);
+		OUT_RING  (chan, upper_32_bits(offset));
+		OUT_RING  (chan, lower_32_bits(offset ^ 0x10));
+		OUT_RING  (chan, 0x74b1e000);
+		OUT_RING  (chan, 0x1001);
+		FIRE_RING (chan);
+	} else {
+		nouveau_bo_wr32(disp->sync, evo->sem.offset / 4,
+				0xf00d0000 | evo->sem.value);
+		evo_sync(crtc->dev, EVO_MASTER);
+	}
+
+	/* queue the flip */
+	evo_mthd(push, 0x0100, 1);
+	evo_data(push, 0xfffe0000);
+	evo_mthd(push, 0x0084, 1);
+	evo_data(push, swap_interval);
+	if (!(swap_interval & 0x00000100)) {
+		evo_mthd(push, 0x00e0, 1);
+		evo_data(push, 0x40000000);
+	}
+	evo_mthd(push, 0x0088, 4);
+	evo_data(push, evo->sem.offset);
+	evo_data(push, 0xf00d0000 | evo->sem.value);
+	evo_data(push, 0x74b1e000);
+	evo_data(push, NvEvoSync);
+	evo_mthd(push, 0x00a0, 2);
+	evo_data(push, 0x00000000);
+	evo_data(push, 0x00000000);
+	evo_mthd(push, 0x00c0, 1);
+	evo_data(push, nv_fb->r_dma);
+	evo_mthd(push, 0x0110, 2);
+	evo_data(push, 0x00000000);
+	evo_data(push, 0x00000000);
+	evo_mthd(push, 0x0400, 5);
+	evo_data(push, nv_fb->nvbo->bo.offset >> 8);
+	evo_data(push, 0);
+	evo_data(push, (fb->height << 16) | fb->width);
+	evo_data(push, nv_fb->r_pitch);
+	evo_data(push, nv_fb->r_format);
+	evo_mthd(push, 0x0080, 1);
+	evo_data(push, 0x00000000);
+	evo_kick(push, crtc->dev, evo->idx);
+
+	evo->sem.offset ^= 0x10;
+	evo->sem.value++;
+	return 0;
 }
 
 /******************************************************************************
  * CRTC
  *****************************************************************************/
 static int
-nvd0_crtc_set_dither(struct nouveau_crtc *nv_crtc, bool on, bool update)
+nvd0_crtc_set_dither(struct nouveau_crtc *nv_crtc, bool update)
 {
 	struct drm_device *dev = nv_crtc->base.dev;
-	u32 *push, mode;
+	struct nouveau_connector *nv_connector;
+	struct drm_connector *connector;
+	u32 *push, mode = 0x00;
 
-	mode = 0x00000000;
-	if (on) {
-		/* 0x11: 6bpc dynamic 2x2
-		 * 0x13: 8bpc dynamic 2x2
-		 * 0x19: 6bpc static 2x2
-		 * 0x1b: 8bpc static 2x2
-		 * 0x21: 6bpc temporal
-		 * 0x23: 8bpc temporal
-		 */
-		mode = 0x00000011;
+	nv_connector = nouveau_crtc_connector_get(nv_crtc);
+	connector = &nv_connector->base;
+	if (nv_connector->dithering_mode == DITHERING_MODE_AUTO) {
+		if (nv_crtc->base.fb->depth > connector->display_info.bpc * 3)
+			mode = DITHERING_MODE_DYNAMIC2X2;
+	} else {
+		mode = nv_connector->dithering_mode;
+	}
+
+	if (nv_connector->dithering_depth == DITHERING_DEPTH_AUTO) {
+		if (connector->display_info.bpc >= 8)
+			mode |= DITHERING_DEPTH_8BPC;
+	} else {
+		mode |= nv_connector->dithering_depth;
 	}
 
-	push = evo_wait(dev, 0, 4);
+	push = evo_wait(dev, EVO_MASTER, 4);
 	if (push) {
 		evo_mthd(push, 0x0490 + (nv_crtc->index * 0x300), 1);
 		evo_data(push, mode);
@@ -132,63 +390,98 @@ nvd0_crtc_set_dither(struct nouveau_crtc *nv_crtc, bool on, bool update)
 			evo_mthd(push, 0x0080, 1);
 			evo_data(push, 0x00000000);
 		}
-		evo_kick(push, dev, 0);
+		evo_kick(push, dev, EVO_MASTER);
 	}
 
 	return 0;
 }
 
 static int
-nvd0_crtc_set_scale(struct nouveau_crtc *nv_crtc, int type, bool update)
+nvd0_crtc_set_scale(struct nouveau_crtc *nv_crtc, bool update)
 {
-	struct drm_display_mode *mode = &nv_crtc->base.mode;
+	struct drm_display_mode *omode, *umode = &nv_crtc->base.mode;
 	struct drm_device *dev = nv_crtc->base.dev;
+	struct drm_crtc *crtc = &nv_crtc->base;
 	struct nouveau_connector *nv_connector;
-	u32 *push, outX, outY;
-
-	outX = mode->hdisplay;
-	outY = mode->vdisplay;
+	int mode = DRM_MODE_SCALE_NONE;
+	u32 oX, oY, *push;
 
+	/* start off at the resolution we programmed the crtc for, this
+	 * effectively handles NONE/FULL scaling
+	 */
 	nv_connector = nouveau_crtc_connector_get(nv_crtc);
-	if (nv_connector && nv_connector->native_mode) {
-		struct drm_display_mode *native = nv_connector->native_mode;
-		u32 xratio = (native->hdisplay << 19) / mode->hdisplay;
-		u32 yratio = (native->vdisplay << 19) / mode->vdisplay;
-
-		switch (type) {
-		case DRM_MODE_SCALE_ASPECT:
-			if (xratio > yratio) {
-				outX = (mode->hdisplay * yratio) >> 19;
-				outY = (mode->vdisplay * yratio) >> 19;
-			} else {
-				outX = (mode->hdisplay * xratio) >> 19;
-				outY = (mode->vdisplay * xratio) >> 19;
-			}
-			break;
-		case DRM_MODE_SCALE_FULLSCREEN:
-			outX = native->hdisplay;
-			outY = native->vdisplay;
-			break;
-		default:
-			break;
+	if (nv_connector && nv_connector->native_mode)
+		mode = nv_connector->scaling_mode;
+
+	if (mode != DRM_MODE_SCALE_NONE)
+		omode = nv_connector->native_mode;
+	else
+		omode = umode;
+
+	oX = omode->hdisplay;
+	oY = omode->vdisplay;
+	if (omode->flags & DRM_MODE_FLAG_DBLSCAN)
+		oY *= 2;
+
+	/* add overscan compensation if necessary, will keep the aspect
+	 * ratio the same as the backend mode unless overridden by the
+	 * user setting both hborder and vborder properties.
+	 */
+	if (nv_connector && ( nv_connector->underscan == UNDERSCAN_ON ||
+			     (nv_connector->underscan == UNDERSCAN_AUTO &&
+			      nv_connector->edid &&
+			      drm_detect_hdmi_monitor(nv_connector->edid)))) {
+		u32 bX = nv_connector->underscan_hborder;
+		u32 bY = nv_connector->underscan_vborder;
+		u32 aspect = (oY << 19) / oX;
+
+		if (bX) {
+			oX -= (bX * 2);
+			if (bY) oY -= (bY * 2);
+			else    oY  = ((oX * aspect) + (aspect / 2)) >> 19;
+		} else {
+			oX -= (oX >> 4) + 32;
+			if (bY) oY -= (bY * 2);
+			else    oY  = ((oX * aspect) + (aspect / 2)) >> 19;
+		}
+	}
+
+	/* handle CENTER/ASPECT scaling, taking into account the areas
+	 * removed already for overscan compensation
+	 */
+	switch (mode) {
+	case DRM_MODE_SCALE_CENTER:
+		oX = min((u32)umode->hdisplay, oX);
+		oY = min((u32)umode->vdisplay, oY);
+		/* fall-through */
+	case DRM_MODE_SCALE_ASPECT:
+		if (oY < oX) {
+			u32 aspect = (umode->hdisplay << 19) / umode->vdisplay;
+			oX = ((oY * aspect) + (aspect / 2)) >> 19;
+		} else {
+			u32 aspect = (umode->vdisplay << 19) / umode->hdisplay;
+			oY = ((oX * aspect) + (aspect / 2)) >> 19;
 		}
+		break;
+	default:
+		break;
 	}
 
-	push = evo_wait(dev, 0, 16);
+	push = evo_wait(dev, EVO_MASTER, 8);
 	if (push) {
 		evo_mthd(push, 0x04c0 + (nv_crtc->index * 0x300), 3);
-		evo_data(push, (outY << 16) | outX);
-		evo_data(push, (outY << 16) | outX);
-		evo_data(push, (outY << 16) | outX);
+		evo_data(push, (oY << 16) | oX);
+		evo_data(push, (oY << 16) | oX);
+		evo_data(push, (oY << 16) | oX);
 		evo_mthd(push, 0x0494 + (nv_crtc->index * 0x300), 1);
 		evo_data(push, 0x00000000);
 		evo_mthd(push, 0x04b8 + (nv_crtc->index * 0x300), 1);
-		evo_data(push, (mode->vdisplay << 16) | mode->hdisplay);
+		evo_data(push, (umode->vdisplay << 16) | umode->hdisplay);
+		evo_kick(push, dev, EVO_MASTER);
 		if (update) {
-			evo_mthd(push, 0x0080, 1);
-			evo_data(push, 0x00000000);
+			nvd0_display_flip_stop(crtc);
+			nvd0_display_flip_next(crtc, crtc->fb, NULL, 1);
 		}
-		evo_kick(push, dev, 0);
 	}
 
 	return 0;
@@ -201,7 +494,7 @@ nvd0_crtc_set_image(struct nouveau_crtc *nv_crtc, struct drm_framebuffer *fb,
 	struct nouveau_framebuffer *nvfb = nouveau_framebuffer(fb);
 	u32 *push;
 
-	push = evo_wait(fb->dev, 0, 16);
+	push = evo_wait(fb->dev, EVO_MASTER, 16);
 	if (push) {
 		evo_mthd(push, 0x0460 + (nv_crtc->index * 0x300), 1);
 		evo_data(push, nvfb->nvbo->bo.offset >> 8);
@@ -216,7 +509,7 @@ nvd0_crtc_set_image(struct nouveau_crtc *nv_crtc, struct drm_framebuffer *fb,
 			evo_mthd(push, 0x0080, 1);
 			evo_data(push, 0x00000000);
 		}
-		evo_kick(push, fb->dev, 0);
+		evo_kick(push, fb->dev, EVO_MASTER);
 	}
 
 	nv_crtc->fb.tile_flags = nvfb->r_dma;
@@ -227,7 +520,7 @@ static void
 nvd0_crtc_cursor_show(struct nouveau_crtc *nv_crtc, bool show, bool update)
 {
 	struct drm_device *dev = nv_crtc->base.dev;
-	u32 *push = evo_wait(dev, 0, 16);
+	u32 *push = evo_wait(dev, EVO_MASTER, 16);
 	if (push) {
 		if (show) {
 			evo_mthd(push, 0x0480 + (nv_crtc->index * 0x300), 2);
@@ -247,7 +540,7 @@ nvd0_crtc_cursor_show(struct nouveau_crtc *nv_crtc, bool show, bool update)
 			evo_data(push, 0x00000000);
 		}
 
-		evo_kick(push, dev, 0);
+		evo_kick(push, dev, EVO_MASTER);
 	}
 }
 
@@ -262,7 +555,9 @@ nvd0_crtc_prepare(struct drm_crtc *crtc)
 	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 	u32 *push;
 
-	push = evo_wait(crtc->dev, 0, 2);
+	nvd0_display_flip_stop(crtc);
+
+	push = evo_wait(crtc->dev, EVO_MASTER, 2);
 	if (push) {
 		evo_mthd(push, 0x0474 + (nv_crtc->index * 0x300), 1);
 		evo_data(push, 0x00000000);
@@ -270,7 +565,7 @@ nvd0_crtc_prepare(struct drm_crtc *crtc)
 		evo_data(push, 0x03000000);
 		evo_mthd(push, 0x045c + (nv_crtc->index * 0x300), 1);
 		evo_data(push, 0x00000000);
-		evo_kick(push, crtc->dev, 0);
+		evo_kick(push, crtc->dev, EVO_MASTER);
 	}
 
 	nvd0_crtc_cursor_show(nv_crtc, false, false);
@@ -282,7 +577,7 @@ nvd0_crtc_commit(struct drm_crtc *crtc)
 	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 	u32 *push;
 
-	push = evo_wait(crtc->dev, 0, 32);
+	push = evo_wait(crtc->dev, EVO_MASTER, 32);
 	if (push) {
 		evo_mthd(push, 0x0474 + (nv_crtc->index * 0x300), 1);
 		evo_data(push, nv_crtc->fb.tile_flags);
@@ -295,10 +590,11 @@ nvd0_crtc_commit(struct drm_crtc *crtc)
 		evo_data(push, NvEvoVRAM);
 		evo_mthd(push, 0x0430 + (nv_crtc->index * 0x300), 1);
 		evo_data(push, 0xffffff00);
-		evo_kick(push, crtc->dev, 0);
+		evo_kick(push, crtc->dev, EVO_MASTER);
 	}
 
-	nvd0_crtc_cursor_show(nv_crtc, nv_crtc->cursor.visible, true);
+	nvd0_crtc_cursor_show(nv_crtc, nv_crtc->cursor.visible, false);
+	nvd0_display_flip_next(crtc, crtc->fb, NULL, 1);
 }
 
 static bool
@@ -333,21 +629,35 @@ nvd0_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *umode,
 {
 	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
 	struct nouveau_connector *nv_connector;
-	u32 htotal = mode->htotal;
-	u32 vtotal = mode->vtotal;
-	u32 hsyncw = mode->hsync_end - mode->hsync_start - 1;
-	u32 vsyncw = mode->vsync_end - mode->vsync_start - 1;
-	u32 hfrntp = mode->hsync_start - mode->hdisplay;
-	u32 vfrntp = mode->vsync_start - mode->vdisplay;
-	u32 hbackp = mode->htotal - mode->hsync_end;
-	u32 vbackp = mode->vtotal - mode->vsync_end;
-	u32 hss2be = hsyncw + hbackp;
-	u32 vss2be = vsyncw + vbackp;
-	u32 hss2de = htotal - hfrntp;
-	u32 vss2de = vtotal - vfrntp;
+	u32 ilace = (mode->flags & DRM_MODE_FLAG_INTERLACE) ? 2 : 1;
+	u32 vscan = (mode->flags & DRM_MODE_FLAG_DBLSCAN) ? 2 : 1;
+	u32 hactive, hsynce, hbackp, hfrontp, hblanke, hblanks;
+	u32 vactive, vsynce, vbackp, vfrontp, vblanke, vblanks;
+	u32 vblan2e = 0, vblan2s = 1;
+	u32 magic = 0x31ec6000;
 	u32 syncs, *push;
 	int ret;
 
+	hactive = mode->htotal;
+	hsynce  = mode->hsync_end - mode->hsync_start - 1;
+	hbackp  = mode->htotal - mode->hsync_end;
+	hblanke = hsynce + hbackp;
+	hfrontp = mode->hsync_start - mode->hdisplay;
+	hblanks = mode->htotal - hfrontp - 1;
+
+	vactive = mode->vtotal * vscan / ilace;
+	vsynce  = ((mode->vsync_end - mode->vsync_start) * vscan / ilace) - 1;
+	vbackp  = (mode->vtotal - mode->vsync_end) * vscan / ilace;
+	vblanke = vsynce + vbackp;
+	vfrontp = (mode->vsync_start - mode->vdisplay) * vscan / ilace;
+	vblanks = vactive - vfrontp - 1;
+	if (mode->flags & DRM_MODE_FLAG_INTERLACE) {
+		vblan2e = vactive + vsynce + vbackp;
+		vblan2s = vblan2e + (mode->vdisplay * vscan / ilace);
+		vactive = (vactive * 2) + 1;
+		magic  |= 0x00000001;
+	}
+
 	syncs = 0x00000001;
 	if (mode->flags & DRM_MODE_FLAG_NHSYNC)
 		syncs |= 0x00000008;
@@ -358,28 +668,33 @@ nvd0_crtc_mode_set(struct drm_crtc *crtc, struct drm_display_mode *umode,
 	if (ret)
 		return ret;
 
-	push = evo_wait(crtc->dev, 0, 64);
+	push = evo_wait(crtc->dev, EVO_MASTER, 64);
 	if (push) {
-		evo_mthd(push, 0x0410 + (nv_crtc->index * 0x300), 5);
+		evo_mthd(push, 0x0410 + (nv_crtc->index * 0x300), 6);
 		evo_data(push, 0x00000000);
-		evo_data(push, (vtotal << 16) | htotal);
-		evo_data(push, (vsyncw << 16) | hsyncw);
-		evo_data(push, (vss2be << 16) | hss2be);
-		evo_data(push, (vss2de << 16) | hss2de);
+		evo_data(push, (vactive << 16) | hactive);
+		evo_data(push, ( vsynce << 16) | hsynce);
+		evo_data(push, (vblanke << 16) | hblanke);
+		evo_data(push, (vblanks << 16) | hblanks);
+		evo_data(push, (vblan2e << 16) | vblan2s);
 		evo_mthd(push, 0x042c + (nv_crtc->index * 0x300), 1);
 		evo_data(push, 0x00000000); /* ??? */
 		evo_mthd(push, 0x0450 + (nv_crtc->index * 0x300), 3);
 		evo_data(push, mode->clock * 1000);
 		evo_data(push, 0x00200000); /* ??? */
 		evo_data(push, mode->clock * 1000);
-		evo_mthd(push, 0x0404 + (nv_crtc->index * 0x300), 1);
+		evo_mthd(push, 0x0404 + (nv_crtc->index * 0x300), 2);
 		evo_data(push, syncs);
-		evo_kick(push, crtc->dev, 0);
+		evo_data(push, magic);
+		evo_mthd(push, 0x04d0 + (nv_crtc->index * 0x300), 2);
+		evo_data(push, 0x00000311);
+		evo_data(push, 0x00000100);
+		evo_kick(push, crtc->dev, EVO_MASTER);
 	}
 
 	nv_connector = nouveau_crtc_connector_get(nv_crtc);
-	nvd0_crtc_set_dither(nv_crtc, nv_connector->use_dithering, false);
-	nvd0_crtc_set_scale(nv_crtc, nv_connector->scaling_mode, false);
+	nvd0_crtc_set_dither(nv_crtc, false);
+	nvd0_crtc_set_scale(nv_crtc, false);
 	nvd0_crtc_set_image(nv_crtc, crtc->fb, x, y, false);
 	return 0;
 }
@@ -400,7 +715,9 @@ nvd0_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
 	if (ret)
 		return ret;
 
+	nvd0_display_flip_stop(crtc);
 	nvd0_crtc_set_image(nv_crtc, crtc->fb, x, y, true);
+	nvd0_display_flip_next(crtc, crtc->fb, NULL, 1);
 	return 0;
 }
 
@@ -410,6 +727,7 @@ nvd0_crtc_mode_set_base_atomic(struct drm_crtc *crtc,
 			       enum mode_set_atomic state)
 {
 	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
+	nvd0_display_flip_stop(crtc);
 	nvd0_crtc_set_image(nv_crtc, fb, x, y, true);
 	return 0;
 }
@@ -472,10 +790,10 @@ static int
 nvd0_crtc_cursor_move(struct drm_crtc *crtc, int x, int y)
 {
 	struct nouveau_crtc *nv_crtc = nouveau_crtc(crtc);
-	const u32 data = (y << 16) | x;
+	int ch = EVO_CURS(nv_crtc->index);
 
-	nv_wr32(crtc->dev, 0x64d084 + (nv_crtc->index * 0x1000), data);
-	nv_wr32(crtc->dev, 0x64d080 + (nv_crtc->index * 0x1000), 0x00000000);
+	evo_piow(crtc->dev, ch, 0x0084, (y << 16) | x);
+	evo_piow(crtc->dev, ch, 0x0080, 0x00000000);
 	return 0;
 }
 
@@ -525,6 +843,7 @@ static const struct drm_crtc_funcs nvd0_crtc_func = {
 	.gamma_set = nvd0_crtc_gamma_set,
 	.set_config = drm_crtc_helper_set_config,
 	.destroy = nvd0_crtc_destroy,
+	.page_flip = nouveau_crtc_page_flip,
 };
 
 static void
@@ -659,12 +978,12 @@ nvd0_dac_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode,
 
 	nvd0_dac_dpms(encoder, DRM_MODE_DPMS_ON);
 
-	push = evo_wait(encoder->dev, 0, 4);
+	push = evo_wait(encoder->dev, EVO_MASTER, 4);
 	if (push) {
 		evo_mthd(push, 0x0180 + (nv_encoder->or * 0x20), 2);
 		evo_data(push, 1 << nv_crtc->index);
 		evo_data(push, 0x00ff);
-		evo_kick(push, encoder->dev, 0);
+		evo_kick(push, encoder->dev, EVO_MASTER);
 	}
 
 	nv_encoder->crtc = encoder->crtc;
@@ -680,13 +999,13 @@ nvd0_dac_disconnect(struct drm_encoder *encoder)
 	if (nv_encoder->crtc) {
 		nvd0_crtc_prepare(nv_encoder->crtc);
 
-		push = evo_wait(dev, 0, 4);
+		push = evo_wait(dev, EVO_MASTER, 4);
 		if (push) {
 			evo_mthd(push, 0x0180 + (nv_encoder->or * 0x20), 1);
 			evo_data(push, 0x00000000);
 			evo_mthd(push, 0x0080, 1);
 			evo_data(push, 0x00000000);
-			evo_kick(push, dev, 0);
+			evo_kick(push, dev, EVO_MASTER);
 		}
 
 		nv_encoder->crtc = NULL;
@@ -760,6 +1079,108 @@ nvd0_dac_create(struct drm_connector *connector, struct dcb_entry *dcbe)
 }
 
 /******************************************************************************
+ * Audio
+ *****************************************************************************/
+static void
+nvd0_audio_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode)
+{
+	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
+	struct nouveau_connector *nv_connector;
+	struct drm_device *dev = encoder->dev;
+	int i, or = nv_encoder->or * 0x30;
+
+	nv_connector = nouveau_encoder_connector_get(nv_encoder);
+	if (!drm_detect_monitor_audio(nv_connector->edid))
+		return;
+
+	nv_mask(dev, 0x10ec10 + or, 0x80000003, 0x80000001);
+
+	drm_edid_to_eld(&nv_connector->base, nv_connector->edid);
+	if (nv_connector->base.eld[0]) {
+		u8 *eld = nv_connector->base.eld;
+
+		for (i = 0; i < eld[2] * 4; i++)
+			nv_wr32(dev, 0x10ec00 + or, (i << 8) | eld[i]);
+		for (i = eld[2] * 4; i < 0x60; i++)
+			nv_wr32(dev, 0x10ec00 + or, (i << 8) | 0x00);
+
+		nv_mask(dev, 0x10ec10 + or, 0x80000002, 0x80000002);
+	}
+}
+
+static void
+nvd0_audio_disconnect(struct drm_encoder *encoder)
+{
+	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
+	struct drm_device *dev = encoder->dev;
+	int or = nv_encoder->or * 0x30;
+
+	nv_mask(dev, 0x10ec10 + or, 0x80000003, 0x80000000);
+}
+
+/******************************************************************************
+ * HDMI
+ *****************************************************************************/
+static void
+nvd0_hdmi_mode_set(struct drm_encoder *encoder, struct drm_display_mode *mode)
+{
+	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
+	struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc);
+	struct nouveau_connector *nv_connector;
+	struct drm_device *dev = encoder->dev;
+	int head = nv_crtc->index * 0x800;
+	u32 rekey = 56; /* binary driver, and tegra constant */
+	u32 max_ac_packet;
+
+	nv_connector = nouveau_encoder_connector_get(nv_encoder);
+	if (!drm_detect_hdmi_monitor(nv_connector->edid))
+		return;
+
+	max_ac_packet  = mode->htotal - mode->hdisplay;
+	max_ac_packet -= rekey;
+	max_ac_packet -= 18; /* constant from tegra */
+	max_ac_packet /= 32;
+
+	/* AVI InfoFrame */
+	nv_mask(dev, 0x616714 + head, 0x00000001, 0x00000000);
+	nv_wr32(dev, 0x61671c + head, 0x000d0282);
+	nv_wr32(dev, 0x616720 + head, 0x0000006f);
+	nv_wr32(dev, 0x616724 + head, 0x00000000);
+	nv_wr32(dev, 0x616728 + head, 0x00000000);
+	nv_wr32(dev, 0x61672c + head, 0x00000000);
+	nv_mask(dev, 0x616714 + head, 0x00000001, 0x00000001);
+
+	/* ??? InfoFrame? */
+	nv_mask(dev, 0x6167a4 + head, 0x00000001, 0x00000000);
+	nv_wr32(dev, 0x6167ac + head, 0x00000010);
+	nv_mask(dev, 0x6167a4 + head, 0x00000001, 0x00000001);
+
+	/* HDMI_CTRL */
+	nv_mask(dev, 0x616798 + head, 0x401f007f, 0x40000000 | rekey |
+						  max_ac_packet << 16);
+
+	/* NFI, audio doesn't work without it though.. */
+	nv_mask(dev, 0x616548 + head, 0x00000070, 0x00000000);
+
+	nvd0_audio_mode_set(encoder, mode);
+}
+
+static void
+nvd0_hdmi_disconnect(struct drm_encoder *encoder)
+{
+	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
+	struct nouveau_crtc *nv_crtc = nouveau_crtc(nv_encoder->crtc);
+	struct drm_device *dev = encoder->dev;
+	int head = nv_crtc->index * 0x800;
+
+	nvd0_audio_disconnect(encoder);
+
+	nv_mask(dev, 0x616798 + head, 0x40000000, 0x00000000);
+	nv_mask(dev, 0x6167a4 + head, 0x00000001, 0x00000000);
+	nv_mask(dev, 0x616714 + head, 0x00000001, 0x00000000);
+}
+
+/******************************************************************************
  * SOR
  *****************************************************************************/
 static void
@@ -829,7 +1250,8 @@ static void
 nvd0_sor_mode_set(struct drm_encoder *encoder, struct drm_display_mode *umode,
 		  struct drm_display_mode *mode)
 {
-	struct drm_nouveau_private *dev_priv = encoder->dev->dev_private;
+	struct drm_device *dev = encoder->dev;
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
 	struct nouveau_encoder *nv_encoder = nouveau_encoder(encoder);
 	struct nouveau_crtc *nv_crtc = nouveau_crtc(encoder->crtc);
 	struct nouveau_connector *nv_connector;
@@ -852,6 +1274,8 @@ nvd0_sor_mode_set(struct drm_encoder *encoder, struct drm_display_mode *umode,
 		or_config = (mode_ctrl & 0x00000f00) >> 8;
 		if (mode->clock >= 165000)
 			or_config |= 0x0100;
+
+		nvd0_hdmi_mode_set(encoder, mode);
 		break;
 	case OUTPUT_LVDS:
 		or_config = (mode_ctrl & 0x00000f00) >> 8;
@@ -861,7 +1285,7 @@ nvd0_sor_mode_set(struct drm_encoder *encoder, struct drm_display_mode *umode,
 			if (bios->fp.if_is_24bit)
 				or_config |= 0x0200;
 		} else {
-			if (nv_connector->dcb->type == DCB_CONNECTOR_LVDS_SPWG) {
+			if (nv_connector->type == DCB_CONNECTOR_LVDS_SPWG) {
 				if (((u8 *)nv_connector->edid)[121] == 2)
 					or_config |= 0x0100;
 			} else
@@ -889,12 +1313,12 @@ nvd0_sor_mode_set(struct drm_encoder *encoder, struct drm_display_mode *umode,
 
 	nvd0_sor_dpms(encoder, DRM_MODE_DPMS_ON);
 
-	push = evo_wait(encoder->dev, 0, 4);
+	push = evo_wait(dev, EVO_MASTER, 4);
 	if (push) {
 		evo_mthd(push, 0x0200 + (nv_encoder->or * 0x20), 2);
 		evo_data(push, mode_ctrl);
 		evo_data(push, or_config);
-		evo_kick(push, encoder->dev, 0);
+		evo_kick(push, dev, EVO_MASTER);
 	}
 
 	nv_encoder->crtc = encoder->crtc;
@@ -910,15 +1334,17 @@ nvd0_sor_disconnect(struct drm_encoder *encoder)
 	if (nv_encoder->crtc) {
 		nvd0_crtc_prepare(nv_encoder->crtc);
 
-		push = evo_wait(dev, 0, 4);
+		push = evo_wait(dev, EVO_MASTER, 4);
 		if (push) {
 			evo_mthd(push, 0x0200 + (nv_encoder->or * 0x20), 1);
 			evo_data(push, 0x00000000);
 			evo_mthd(push, 0x0080, 1);
 			evo_data(push, 0x00000000);
-			evo_kick(push, dev, 0);
+			evo_kick(push, dev, EVO_MASTER);
 		}
 
+		nvd0_hdmi_disconnect(encoder);
+
 		nv_encoder->crtc = NULL;
 		nv_encoder->last_dpms = DRM_MODE_DPMS_OFF;
 	}
@@ -1159,6 +1585,12 @@ nvd0_display_intr(struct drm_device *dev)
 	struct nvd0_display *disp = nvd0_display(dev);
 	u32 intr = nv_rd32(dev, 0x610088);
 
+	if (intr & 0x00000001) {
+		u32 stat = nv_rd32(dev, 0x61008c);
+		nv_wr32(dev, 0x61008c, stat);
+		intr &= ~0x00000001;
+	}
+
 	if (intr & 0x00000002) {
 		u32 stat = nv_rd32(dev, 0x61009c);
 		int chid = ffs(stat) - 1;
@@ -1215,38 +1647,29 @@ nvd0_display_intr(struct drm_device *dev)
 /******************************************************************************
  * Init
  *****************************************************************************/
-static void
+void
 nvd0_display_fini(struct drm_device *dev)
 {
 	int i;
 
-	/* fini cursors */
-	for (i = 14; i >= 13; i--) {
-		if (!(nv_rd32(dev, 0x610490 + (i * 0x10)) & 0x00000001))
-			continue;
-
-		nv_mask(dev, 0x610490 + (i * 0x10), 0x00000001, 0x00000000);
-		nv_wait(dev, 0x610490 + (i * 0x10), 0x00010000, 0x00000000);
-		nv_mask(dev, 0x610090, 1 << i, 0x00000000);
-		nv_mask(dev, 0x6100a0, 1 << i, 0x00000000);
+	/* fini cursors + overlays + flips */
+	for (i = 1; i >= 0; i--) {
+		evo_fini_pio(dev, EVO_CURS(i));
+		evo_fini_pio(dev, EVO_OIMM(i));
+		evo_fini_dma(dev, EVO_OVLY(i));
+		evo_fini_dma(dev, EVO_FLIP(i));
 	}
 
 	/* fini master */
-	if (nv_rd32(dev, 0x610490) & 0x00000010) {
-		nv_mask(dev, 0x610490, 0x00000010, 0x00000000);
-		nv_mask(dev, 0x610490, 0x00000003, 0x00000000);
-		nv_wait(dev, 0x610490, 0x80000000, 0x00000000);
-		nv_mask(dev, 0x610090, 0x00000001, 0x00000000);
-		nv_mask(dev, 0x6100a0, 0x00000001, 0x00000000);
-	}
+	evo_fini_dma(dev, EVO_MASTER);
 }
 
 int
 nvd0_display_init(struct drm_device *dev)
 {
 	struct nvd0_display *disp = nvd0_display(dev);
+	int ret, i;
 	u32 *push;
-	int i;
 
 	if (nv_rd32(dev, 0x6100ac) & 0x00000100) {
 		nv_wr32(dev, 0x6100ac, 0x00000100);
@@ -1271,7 +1694,7 @@ nvd0_display_init(struct drm_device *dev)
 		nv_wr32(dev, 0x6301c4 + (i * 0x800), sor);
 	}
 
-	for (i = 0; i < 2; i++) {
+	for (i = 0; i < dev->mode_config.num_crtc; i++) {
 		u32 crtc0 = nv_rd32(dev, 0x616104 + (i * 0x800));
 		u32 crtc1 = nv_rd32(dev, 0x616108 + (i * 0x800));
 		u32 crtc2 = nv_rd32(dev, 0x61610c + (i * 0x800));
@@ -1285,36 +1708,24 @@ nvd0_display_init(struct drm_device *dev)
 	nv_mask(dev, 0x6100b0, 0x00000307, 0x00000307);
 
 	/* init master */
-	nv_wr32(dev, 0x610494, (disp->evo[0].handle >> 8) | 3);
-	nv_wr32(dev, 0x610498, 0x00010000);
-	nv_wr32(dev, 0x61049c, 0x00000001);
-	nv_mask(dev, 0x610490, 0x00000010, 0x00000010);
-	nv_wr32(dev, 0x640000, 0x00000000);
-	nv_wr32(dev, 0x610490, 0x01000013);
-	if (!nv_wait(dev, 0x610490, 0x80000000, 0x00000000)) {
-		NV_ERROR(dev, "PDISP: master 0x%08x\n",
-			 nv_rd32(dev, 0x610490));
-		return -EBUSY;
+	ret = evo_init_dma(dev, EVO_MASTER);
+	if (ret)
+		goto error;
+
+	/* init flips + overlays + cursors */
+	for (i = 0; i < dev->mode_config.num_crtc; i++) {
+		if ((ret = evo_init_dma(dev, EVO_FLIP(i))) ||
+		    (ret = evo_init_dma(dev, EVO_OVLY(i))) ||
+		    (ret = evo_init_pio(dev, EVO_OIMM(i))) ||
+		    (ret = evo_init_pio(dev, EVO_CURS(i))))
+			goto error;
 	}
-	nv_mask(dev, 0x610090, 0x00000001, 0x00000001);
-	nv_mask(dev, 0x6100a0, 0x00000001, 0x00000001);
 
-	/* init cursors */
-	for (i = 13; i <= 14; i++) {
-		nv_wr32(dev, 0x610490 + (i * 0x10), 0x00000001);
-		if (!nv_wait(dev, 0x610490 + (i * 0x10), 0x00010000, 0x00010000)) {
-			NV_ERROR(dev, "PDISP: curs%d 0x%08x\n", i,
-				 nv_rd32(dev, 0x610490 + (i * 0x10)));
-			return -EBUSY;
-		}
-
-		nv_mask(dev, 0x610090, 1 << i, 1 << i);
-		nv_mask(dev, 0x6100a0, 1 << i, 1 << i);
+	push = evo_wait(dev, EVO_MASTER, 32);
+	if (!push) {
+		ret = -EBUSY;
+		goto error;
 	}
-
-	push = evo_wait(dev, 0, 32);
-	if (!push)
-		return -EBUSY;
 	evo_mthd(push, 0x0088, 1);
 	evo_data(push, NvEvoSync);
 	evo_mthd(push, 0x0084, 1);
@@ -1323,9 +1734,12 @@ nvd0_display_init(struct drm_device *dev)
 	evo_data(push, 0x80000000);
 	evo_mthd(push, 0x008c, 1);
 	evo_data(push, 0x00000000);
-	evo_kick(push, dev, 0);
+	evo_kick(push, dev, EVO_MASTER);
 
-	return 0;
+error:
+	if (ret)
+		nvd0_display_fini(dev);
+	return ret;
 }
 
 void
@@ -1334,11 +1748,16 @@ nvd0_display_destroy(struct drm_device *dev)
 	struct drm_nouveau_private *dev_priv = dev->dev_private;
 	struct nvd0_display *disp = nvd0_display(dev);
 	struct pci_dev *pdev = dev->pdev;
+	int i;
 
-	nvd0_display_fini(dev);
+	for (i = 0; i < EVO_DMA_NR; i++) {
+		struct evo *evo = &disp->evo[i];
+		pci_free_consistent(pdev, PAGE_SIZE, evo->ptr, evo->handle);
+	}
 
-	pci_free_consistent(pdev, PAGE_SIZE, disp->evo[0].ptr, disp->evo[0].handle);
 	nouveau_gpuobj_ref(NULL, &disp->mem);
+	nouveau_bo_unmap(disp->sync);
+	nouveau_bo_ref(NULL, &disp->sync);
 	nouveau_irq_unregister(dev, 26);
 
 	dev_priv->engine.display.priv = NULL;
@@ -1410,61 +1829,83 @@ nvd0_display_create(struct drm_device *dev)
 	tasklet_init(&disp->tasklet, nvd0_display_bh, (unsigned long)dev);
 	nouveau_irq_register(dev, 26, nvd0_display_intr);
 
+	/* small shared memory area we use for notifiers and semaphores */
+	ret = nouveau_bo_new(dev, 4096, 0x1000, TTM_PL_FLAG_VRAM,
+			     0, 0x0000, &disp->sync);
+	if (!ret) {
+		ret = nouveau_bo_pin(disp->sync, TTM_PL_FLAG_VRAM);
+		if (!ret)
+			ret = nouveau_bo_map(disp->sync);
+		if (ret)
+			nouveau_bo_ref(NULL, &disp->sync);
+	}
+
+	if (ret)
+		goto out;
+
 	/* hash table and dma objects for the memory areas we care about */
 	ret = nouveau_gpuobj_new(dev, NULL, 0x4000, 0x10000,
 				 NVOBJ_FLAG_ZERO_ALLOC, &disp->mem);
 	if (ret)
 		goto out;
 
-	nv_wo32(disp->mem, 0x1000, 0x00000049);
-	nv_wo32(disp->mem, 0x1004, (disp->mem->vinst + 0x2000) >> 8);
-	nv_wo32(disp->mem, 0x1008, (disp->mem->vinst + 0x2fff) >> 8);
-	nv_wo32(disp->mem, 0x100c, 0x00000000);
-	nv_wo32(disp->mem, 0x1010, 0x00000000);
-	nv_wo32(disp->mem, 0x1014, 0x00000000);
-	nv_wo32(disp->mem, 0x0000, NvEvoSync);
-	nv_wo32(disp->mem, 0x0004, (0x1000 << 9) | 0x00000001);
-
-	nv_wo32(disp->mem, 0x1020, 0x00000049);
-	nv_wo32(disp->mem, 0x1024, 0x00000000);
-	nv_wo32(disp->mem, 0x1028, (dev_priv->vram_size - 1) >> 8);
-	nv_wo32(disp->mem, 0x102c, 0x00000000);
-	nv_wo32(disp->mem, 0x1030, 0x00000000);
-	nv_wo32(disp->mem, 0x1034, 0x00000000);
-	nv_wo32(disp->mem, 0x0008, NvEvoVRAM);
-	nv_wo32(disp->mem, 0x000c, (0x1020 << 9) | 0x00000001);
-
-	nv_wo32(disp->mem, 0x1040, 0x00000009);
-	nv_wo32(disp->mem, 0x1044, 0x00000000);
-	nv_wo32(disp->mem, 0x1048, (dev_priv->vram_size - 1) >> 8);
-	nv_wo32(disp->mem, 0x104c, 0x00000000);
-	nv_wo32(disp->mem, 0x1050, 0x00000000);
-	nv_wo32(disp->mem, 0x1054, 0x00000000);
-	nv_wo32(disp->mem, 0x0010, NvEvoVRAM_LP);
-	nv_wo32(disp->mem, 0x0014, (0x1040 << 9) | 0x00000001);
-
-	nv_wo32(disp->mem, 0x1060, 0x0fe00009);
-	nv_wo32(disp->mem, 0x1064, 0x00000000);
-	nv_wo32(disp->mem, 0x1068, (dev_priv->vram_size - 1) >> 8);
-	nv_wo32(disp->mem, 0x106c, 0x00000000);
-	nv_wo32(disp->mem, 0x1070, 0x00000000);
-	nv_wo32(disp->mem, 0x1074, 0x00000000);
-	nv_wo32(disp->mem, 0x0018, NvEvoFB32);
-	nv_wo32(disp->mem, 0x001c, (0x1060 << 9) | 0x00000001);
-
-	pinstmem->flush(dev);
+	/* create evo dma channels */
+	for (i = 0; i < EVO_DMA_NR; i++) {
+		struct evo *evo = &disp->evo[i];
+		u64 offset = disp->sync->bo.offset;
+		u32 dmao = 0x1000 + (i * 0x100);
+		u32 hash = 0x0000 + (i * 0x040);
+
+		evo->idx = i;
+		evo->sem.offset = EVO_SYNC(evo->idx, 0x00);
+		evo->ptr = pci_alloc_consistent(pdev, PAGE_SIZE, &evo->handle);
+		if (!evo->ptr) {
+			ret = -ENOMEM;
+			goto out;
+		}
 
-	/* push buffers for evo channels */
-	disp->evo[0].ptr =
-		pci_alloc_consistent(pdev, PAGE_SIZE, &disp->evo[0].handle);
-	if (!disp->evo[0].ptr) {
-		ret = -ENOMEM;
-		goto out;
+		nv_wo32(disp->mem, dmao + 0x00, 0x00000049);
+		nv_wo32(disp->mem, dmao + 0x04, (offset + 0x0000) >> 8);
+		nv_wo32(disp->mem, dmao + 0x08, (offset + 0x0fff) >> 8);
+		nv_wo32(disp->mem, dmao + 0x0c, 0x00000000);
+		nv_wo32(disp->mem, dmao + 0x10, 0x00000000);
+		nv_wo32(disp->mem, dmao + 0x14, 0x00000000);
+		nv_wo32(disp->mem, hash + 0x00, NvEvoSync);
+		nv_wo32(disp->mem, hash + 0x04, 0x00000001 | (i << 27) |
+						((dmao + 0x00) << 9));
+
+		nv_wo32(disp->mem, dmao + 0x20, 0x00000049);
+		nv_wo32(disp->mem, dmao + 0x24, 0x00000000);
+		nv_wo32(disp->mem, dmao + 0x28, (dev_priv->vram_size - 1) >> 8);
+		nv_wo32(disp->mem, dmao + 0x2c, 0x00000000);
+		nv_wo32(disp->mem, dmao + 0x30, 0x00000000);
+		nv_wo32(disp->mem, dmao + 0x34, 0x00000000);
+		nv_wo32(disp->mem, hash + 0x08, NvEvoVRAM);
+		nv_wo32(disp->mem, hash + 0x0c, 0x00000001 | (i << 27) |
+						((dmao + 0x20) << 9));
+
+		nv_wo32(disp->mem, dmao + 0x40, 0x00000009);
+		nv_wo32(disp->mem, dmao + 0x44, 0x00000000);
+		nv_wo32(disp->mem, dmao + 0x48, (dev_priv->vram_size - 1) >> 8);
+		nv_wo32(disp->mem, dmao + 0x4c, 0x00000000);
+		nv_wo32(disp->mem, dmao + 0x50, 0x00000000);
+		nv_wo32(disp->mem, dmao + 0x54, 0x00000000);
+		nv_wo32(disp->mem, hash + 0x10, NvEvoVRAM_LP);
+		nv_wo32(disp->mem, hash + 0x14, 0x00000001 | (i << 27) |
+						((dmao + 0x40) << 9));
+
+		nv_wo32(disp->mem, dmao + 0x60, 0x0fe00009);
+		nv_wo32(disp->mem, dmao + 0x64, 0x00000000);
+		nv_wo32(disp->mem, dmao + 0x68, (dev_priv->vram_size - 1) >> 8);
+		nv_wo32(disp->mem, dmao + 0x6c, 0x00000000);
+		nv_wo32(disp->mem, dmao + 0x70, 0x00000000);
+		nv_wo32(disp->mem, dmao + 0x74, 0x00000000);
+		nv_wo32(disp->mem, hash + 0x18, NvEvoFB32);
+		nv_wo32(disp->mem, hash + 0x1c, 0x00000001 | (i << 27) |
+						((dmao + 0x60) << 9));
 	}
 
-	ret = nvd0_display_init(dev);
-	if (ret)
-		goto out;
+	pinstmem->flush(dev);
 
 out:
 	if (ret)
diff --git a/drivers/gpu/drm/r128/r128_drv.c b/drivers/gpu/drm/r128/r128_drv.c
index 4c8796ba6dd8..6a5f4395838f 100644
--- a/drivers/gpu/drm/r128/r128_drv.c
+++ b/drivers/gpu/drm/r128/r128_drv.c
@@ -42,6 +42,20 @@ static struct pci_device_id pciidlist[] = {
 	r128_PCI_IDS
 };
 
+static const struct file_operations r128_driver_fops = {
+	.owner = THIS_MODULE,
+	.open = drm_open,
+	.release = drm_release,
+	.unlocked_ioctl = drm_ioctl,
+	.mmap = drm_mmap,
+	.poll = drm_poll,
+	.fasync = drm_fasync,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl = r128_compat_ioctl,
+#endif
+	.llseek = noop_llseek,
+};
+
 static struct drm_driver driver = {
 	.driver_features =
 	    DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_PCI_DMA | DRIVER_SG |
@@ -60,21 +74,7 @@ static struct drm_driver driver = {
 	.reclaim_buffers = drm_core_reclaim_buffers,
 	.ioctls = r128_ioctls,
 	.dma_ioctl = r128_cce_buffers,
-	.fops = {
-		.owner = THIS_MODULE,
-		.open = drm_open,
-		.release = drm_release,
-		.unlocked_ioctl = drm_ioctl,
-		.mmap = drm_mmap,
-		.poll = drm_poll,
-		.fasync = drm_fasync,
-#ifdef CONFIG_COMPAT
-		.compat_ioctl = r128_compat_ioctl,
-#endif
-		.llseek = noop_llseek,
-	},
-
-
+	.fops = &r128_driver_fops,
 	.name = DRIVER_NAME,
 	.desc = DRIVER_DESC,
 	.date = DRIVER_DATE,
diff --git a/drivers/gpu/drm/radeon/Makefile b/drivers/gpu/drm/radeon/Makefile
index cf8b4bc3e73d..2139fe893ec5 100644
--- a/drivers/gpu/drm/radeon/Makefile
+++ b/drivers/gpu/drm/radeon/Makefile
@@ -70,7 +70,8 @@ radeon-y += radeon_device.o radeon_asic.o radeon_kms.o \
 	r200.o radeon_legacy_tv.o r600_cs.o r600_blit.o r600_blit_shaders.o \
 	r600_blit_kms.o radeon_pm.o atombios_dp.o r600_audio.o r600_hdmi.o \
 	evergreen.o evergreen_cs.o evergreen_blit_shaders.o evergreen_blit_kms.o \
-	radeon_trace_points.o ni.o cayman_blit_shaders.o atombios_encoders.o
+	radeon_trace_points.o ni.o cayman_blit_shaders.o atombios_encoders.o \
+	radeon_semaphore.o radeon_sa.o
 
 radeon-$(CONFIG_COMPAT) += radeon_ioc32.o
 radeon-$(CONFIG_VGA_SWITCHEROO) += radeon_atpx_handler.o
@@ -78,4 +79,4 @@ radeon-$(CONFIG_ACPI) += radeon_acpi.o
 
 obj-$(CONFIG_DRM_RADEON)+= radeon.o
 
-CFLAGS_radeon_trace_points.o := -I$(src)
\ No newline at end of file
+CFLAGS_radeon_trace_points.o := -I$(src)
diff --git a/drivers/gpu/drm/radeon/atom.c b/drivers/gpu/drm/radeon/atom.c
index 14cc88aaf3a7..d1bd239cd9e9 100644
--- a/drivers/gpu/drm/radeon/atom.c
+++ b/drivers/gpu/drm/radeon/atom.c
@@ -665,6 +665,8 @@ static void atom_op_delay(atom_exec_context *ctx, int *ptr, int arg)
 	SDEBUG("   count: %d\n", count);
 	if (arg == ATOM_UNIT_MICROSEC)
 		udelay(count);
+	else if (!drm_can_sleep())
+		mdelay(count);
 	else
 		msleep(count);
 }
diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index 2b97262e3ab1..0fda830ef806 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -554,7 +554,7 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc,
 		if (encoder->crtc == crtc) {
 			radeon_encoder = to_radeon_encoder(encoder);
 			connector = radeon_get_connector_for_encoder(encoder);
-			if (connector)
+			if (connector && connector->display_info.bpc)
 				bpc = connector->display_info.bpc;
 			encoder_mode = atombios_get_encoder_mode(encoder);
 			if ((radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT | ATOM_DEVICE_DFP_SUPPORT)) ||
@@ -1184,7 +1184,7 @@ static int dce4_crtc_do_set_base(struct drm_crtc *crtc,
 	WREG32(EVERGREEN_GRPH_X_END + radeon_crtc->crtc_offset, target_fb->width);
 	WREG32(EVERGREEN_GRPH_Y_END + radeon_crtc->crtc_offset, target_fb->height);
 
-	fb_pitch_pixels = target_fb->pitch / (target_fb->bits_per_pixel / 8);
+	fb_pitch_pixels = target_fb->pitches[0] / (target_fb->bits_per_pixel / 8);
 	WREG32(EVERGREEN_GRPH_PITCH + radeon_crtc->crtc_offset, fb_pitch_pixels);
 	WREG32(EVERGREEN_GRPH_ENABLE + radeon_crtc->crtc_offset, 1);
 
@@ -1353,7 +1353,7 @@ static int avivo_crtc_do_set_base(struct drm_crtc *crtc,
 	WREG32(AVIVO_D1GRPH_X_END + radeon_crtc->crtc_offset, target_fb->width);
 	WREG32(AVIVO_D1GRPH_Y_END + radeon_crtc->crtc_offset, target_fb->height);
 
-	fb_pitch_pixels = target_fb->pitch / (target_fb->bits_per_pixel / 8);
+	fb_pitch_pixels = target_fb->pitches[0] / (target_fb->bits_per_pixel / 8);
 	WREG32(AVIVO_D1GRPH_PITCH + radeon_crtc->crtc_offset, fb_pitch_pixels);
 	WREG32(AVIVO_D1GRPH_ENABLE + radeon_crtc->crtc_offset, 1);
 
diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c
index 39c04c1b8472..f1f06ca9f1f5 100644
--- a/drivers/gpu/drm/radeon/atombios_encoders.c
+++ b/drivers/gpu/drm/radeon/atombios_encoders.c
@@ -409,8 +409,6 @@ int
 atombios_get_encoder_mode(struct drm_encoder *encoder)
 {
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
-	struct drm_device *dev = encoder->dev;
-	struct radeon_device *rdev = dev->dev_private;
 	struct drm_connector *connector;
 	struct radeon_connector *radeon_connector;
 	struct radeon_connector_atom_dig *dig_connector;
@@ -434,13 +432,10 @@ atombios_get_encoder_mode(struct drm_encoder *encoder)
 	switch (connector->connector_type) {
 	case DRM_MODE_CONNECTOR_DVII:
 	case DRM_MODE_CONNECTOR_HDMIB: /* HDMI-B is basically DL-DVI; analog works fine */
-		if (drm_detect_monitor_audio(radeon_connector->edid) && radeon_audio) {
-			/* fix me */
-			if (ASIC_IS_DCE4(rdev))
-				return ATOM_ENCODER_MODE_DVI;
-			else
-				return ATOM_ENCODER_MODE_HDMI;
-		} else if (radeon_connector->use_digital)
+		if (drm_detect_monitor_audio(radeon_connector->edid) &&
+		    radeon_audio)
+			return ATOM_ENCODER_MODE_HDMI;
+		else if (radeon_connector->use_digital)
 			return ATOM_ENCODER_MODE_DVI;
 		else
 			return ATOM_ENCODER_MODE_CRT;
@@ -448,13 +443,10 @@ atombios_get_encoder_mode(struct drm_encoder *encoder)
 	case DRM_MODE_CONNECTOR_DVID:
 	case DRM_MODE_CONNECTOR_HDMIA:
 	default:
-		if (drm_detect_monitor_audio(radeon_connector->edid) && radeon_audio) {
-			/* fix me */
-			if (ASIC_IS_DCE4(rdev))
-				return ATOM_ENCODER_MODE_DVI;
-			else
-				return ATOM_ENCODER_MODE_HDMI;
-		} else
+		if (drm_detect_monitor_audio(radeon_connector->edid) &&
+		    radeon_audio)
+			return ATOM_ENCODER_MODE_HDMI;
+		else
 			return ATOM_ENCODER_MODE_DVI;
 		break;
 	case DRM_MODE_CONNECTOR_LVDS:
@@ -465,13 +457,10 @@ atombios_get_encoder_mode(struct drm_encoder *encoder)
 		if ((dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_DISPLAYPORT) ||
 		    (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP))
 			return ATOM_ENCODER_MODE_DP;
-		else if (drm_detect_monitor_audio(radeon_connector->edid) && radeon_audio) {
-			/* fix me */
-			if (ASIC_IS_DCE4(rdev))
-				return ATOM_ENCODER_MODE_DVI;
-			else
-				return ATOM_ENCODER_MODE_HDMI;
-		} else
+		else if (drm_detect_monitor_audio(radeon_connector->edid) &&
+			 radeon_audio)
+			return ATOM_ENCODER_MODE_HDMI;
+		else
 			return ATOM_ENCODER_MODE_DVI;
 		break;
 	case DRM_MODE_CONNECTOR_eDP:
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 92c9628c572d..636660fca8c2 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -40,6 +40,8 @@
 static void evergreen_gpu_init(struct radeon_device *rdev);
 void evergreen_fini(struct radeon_device *rdev);
 void evergreen_pcie_gen2_enable(struct radeon_device *rdev);
+extern void cayman_cp_int_cntl_setup(struct radeon_device *rdev,
+				     int ring, u32 cp_int_cntl);
 
 void evergreen_fix_pci_max_read_req_size(struct radeon_device *rdev)
 {
@@ -1311,18 +1313,20 @@ void evergreen_mc_program(struct radeon_device *rdev)
  */
 void evergreen_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib)
 {
+	struct radeon_ring *ring = &rdev->ring[ib->fence->ring];
+
 	/* set to DX10/11 mode */
-	radeon_ring_write(rdev, PACKET3(PACKET3_MODE_CONTROL, 0));
-	radeon_ring_write(rdev, 1);
+	radeon_ring_write(ring, PACKET3(PACKET3_MODE_CONTROL, 0));
+	radeon_ring_write(ring, 1);
 	/* FIXME: implement */
-	radeon_ring_write(rdev, PACKET3(PACKET3_INDIRECT_BUFFER, 2));
-	radeon_ring_write(rdev,
+	radeon_ring_write(ring, PACKET3(PACKET3_INDIRECT_BUFFER, 2));
+	radeon_ring_write(ring,
 #ifdef __BIG_ENDIAN
 			  (2 << 0) |
 #endif
 			  (ib->gpu_addr & 0xFFFFFFFC));
-	radeon_ring_write(rdev, upper_32_bits(ib->gpu_addr) & 0xFF);
-	radeon_ring_write(rdev, ib->length_dw);
+	radeon_ring_write(ring, upper_32_bits(ib->gpu_addr) & 0xFF);
+	radeon_ring_write(ring, ib->length_dw);
 }
 
 
@@ -1360,71 +1364,73 @@ static int evergreen_cp_load_microcode(struct radeon_device *rdev)
 
 static int evergreen_cp_start(struct radeon_device *rdev)
 {
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 	int r, i;
 	uint32_t cp_me;
 
-	r = radeon_ring_lock(rdev, 7);
+	r = radeon_ring_lock(rdev, ring, 7);
 	if (r) {
 		DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r);
 		return r;
 	}
-	radeon_ring_write(rdev, PACKET3(PACKET3_ME_INITIALIZE, 5));
-	radeon_ring_write(rdev, 0x1);
-	radeon_ring_write(rdev, 0x0);
-	radeon_ring_write(rdev, rdev->config.evergreen.max_hw_contexts - 1);
-	radeon_ring_write(rdev, PACKET3_ME_INITIALIZE_DEVICE_ID(1));
-	radeon_ring_write(rdev, 0);
-	radeon_ring_write(rdev, 0);
-	radeon_ring_unlock_commit(rdev);
+	radeon_ring_write(ring, PACKET3(PACKET3_ME_INITIALIZE, 5));
+	radeon_ring_write(ring, 0x1);
+	radeon_ring_write(ring, 0x0);
+	radeon_ring_write(ring, rdev->config.evergreen.max_hw_contexts - 1);
+	radeon_ring_write(ring, PACKET3_ME_INITIALIZE_DEVICE_ID(1));
+	radeon_ring_write(ring, 0);
+	radeon_ring_write(ring, 0);
+	radeon_ring_unlock_commit(rdev, ring);
 
 	cp_me = 0xff;
 	WREG32(CP_ME_CNTL, cp_me);
 
-	r = radeon_ring_lock(rdev, evergreen_default_size + 19);
+	r = radeon_ring_lock(rdev, ring, evergreen_default_size + 19);
 	if (r) {
 		DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r);
 		return r;
 	}
 
 	/* setup clear context state */
-	radeon_ring_write(rdev, PACKET3(PACKET3_PREAMBLE_CNTL, 0));
-	radeon_ring_write(rdev, PACKET3_PREAMBLE_BEGIN_CLEAR_STATE);
+	radeon_ring_write(ring, PACKET3(PACKET3_PREAMBLE_CNTL, 0));
+	radeon_ring_write(ring, PACKET3_PREAMBLE_BEGIN_CLEAR_STATE);
 
 	for (i = 0; i < evergreen_default_size; i++)
-		radeon_ring_write(rdev, evergreen_default_state[i]);
+		radeon_ring_write(ring, evergreen_default_state[i]);
 
-	radeon_ring_write(rdev, PACKET3(PACKET3_PREAMBLE_CNTL, 0));
-	radeon_ring_write(rdev, PACKET3_PREAMBLE_END_CLEAR_STATE);
+	radeon_ring_write(ring, PACKET3(PACKET3_PREAMBLE_CNTL, 0));
+	radeon_ring_write(ring, PACKET3_PREAMBLE_END_CLEAR_STATE);
 
 	/* set clear context state */
-	radeon_ring_write(rdev, PACKET3(PACKET3_CLEAR_STATE, 0));
-	radeon_ring_write(rdev, 0);
+	radeon_ring_write(ring, PACKET3(PACKET3_CLEAR_STATE, 0));
+	radeon_ring_write(ring, 0);
 
 	/* SQ_VTX_BASE_VTX_LOC */
-	radeon_ring_write(rdev, 0xc0026f00);
-	radeon_ring_write(rdev, 0x00000000);
-	radeon_ring_write(rdev, 0x00000000);
-	radeon_ring_write(rdev, 0x00000000);
+	radeon_ring_write(ring, 0xc0026f00);
+	radeon_ring_write(ring, 0x00000000);
+	radeon_ring_write(ring, 0x00000000);
+	radeon_ring_write(ring, 0x00000000);
 
 	/* Clear consts */
-	radeon_ring_write(rdev, 0xc0036f00);
-	radeon_ring_write(rdev, 0x00000bc4);
-	radeon_ring_write(rdev, 0xffffffff);
-	radeon_ring_write(rdev, 0xffffffff);
-	radeon_ring_write(rdev, 0xffffffff);
+	radeon_ring_write(ring, 0xc0036f00);
+	radeon_ring_write(ring, 0x00000bc4);
+	radeon_ring_write(ring, 0xffffffff);
+	radeon_ring_write(ring, 0xffffffff);
+	radeon_ring_write(ring, 0xffffffff);
 
-	radeon_ring_write(rdev, 0xc0026900);
-	radeon_ring_write(rdev, 0x00000316);
-	radeon_ring_write(rdev, 0x0000000e); /* VGT_VERTEX_REUSE_BLOCK_CNTL */
-	radeon_ring_write(rdev, 0x00000010); /*  */
+	radeon_ring_write(ring, 0xc0026900);
+	radeon_ring_write(ring, 0x00000316);
+	radeon_ring_write(ring, 0x0000000e); /* VGT_VERTEX_REUSE_BLOCK_CNTL */
+	radeon_ring_write(ring, 0x00000010); /*  */
 
-	radeon_ring_unlock_commit(rdev);
+	radeon_ring_unlock_commit(rdev, ring);
 
 	return 0;
 }
 
 int evergreen_cp_resume(struct radeon_device *rdev)
 {
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 	u32 tmp;
 	u32 rb_bufsz;
 	int r;
@@ -1442,13 +1448,13 @@ int evergreen_cp_resume(struct radeon_device *rdev)
 	RREG32(GRBM_SOFT_RESET);
 
 	/* Set ring buffer size */
-	rb_bufsz = drm_order(rdev->cp.ring_size / 8);
+	rb_bufsz = drm_order(ring->ring_size / 8);
 	tmp = (drm_order(RADEON_GPU_PAGE_SIZE/8) << 8) | rb_bufsz;
 #ifdef __BIG_ENDIAN
 	tmp |= BUF_SWAP_32BIT;
 #endif
 	WREG32(CP_RB_CNTL, tmp);
-	WREG32(CP_SEM_WAIT_TIMER, 0x4);
+	WREG32(CP_SEM_WAIT_TIMER, 0x0);
 
 	/* Set the write pointer delay */
 	WREG32(CP_RB_WPTR_DELAY, 0);
@@ -1456,8 +1462,8 @@ int evergreen_cp_resume(struct radeon_device *rdev)
 	/* Initialize the ring buffer's read and write pointers */
 	WREG32(CP_RB_CNTL, tmp | RB_RPTR_WR_ENA);
 	WREG32(CP_RB_RPTR_WR, 0);
-	rdev->cp.wptr = 0;
-	WREG32(CP_RB_WPTR, rdev->cp.wptr);
+	ring->wptr = 0;
+	WREG32(CP_RB_WPTR, ring->wptr);
 
 	/* set the wb address wether it's enabled or not */
 	WREG32(CP_RB_RPTR_ADDR,
@@ -1475,16 +1481,16 @@ int evergreen_cp_resume(struct radeon_device *rdev)
 	mdelay(1);
 	WREG32(CP_RB_CNTL, tmp);
 
-	WREG32(CP_RB_BASE, rdev->cp.gpu_addr >> 8);
+	WREG32(CP_RB_BASE, ring->gpu_addr >> 8);
 	WREG32(CP_DEBUG, (1 << 27) | (1 << 28));
 
-	rdev->cp.rptr = RREG32(CP_RB_RPTR);
+	ring->rptr = RREG32(CP_RB_RPTR);
 
 	evergreen_cp_start(rdev);
-	rdev->cp.ready = true;
-	r = radeon_ring_test(rdev);
+	ring->ready = true;
+	r = radeon_ring_test(rdev, ring);
 	if (r) {
-		rdev->cp.ready = false;
+		ring->ready = false;
 		return r;
 	}
 	return 0;
@@ -2353,7 +2359,7 @@ int evergreen_mc_init(struct radeon_device *rdev)
 	return 0;
 }
 
-bool evergreen_gpu_is_lockup(struct radeon_device *rdev)
+bool evergreen_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
 {
 	u32 srbm_status;
 	u32 grbm_status;
@@ -2366,19 +2372,19 @@ bool evergreen_gpu_is_lockup(struct radeon_device *rdev)
 	grbm_status_se0 = RREG32(GRBM_STATUS_SE0);
 	grbm_status_se1 = RREG32(GRBM_STATUS_SE1);
 	if (!(grbm_status & GUI_ACTIVE)) {
-		r100_gpu_lockup_update(lockup, &rdev->cp);
+		r100_gpu_lockup_update(lockup, ring);
 		return false;
 	}
 	/* force CP activities */
-	r = radeon_ring_lock(rdev, 2);
+	r = radeon_ring_lock(rdev, ring, 2);
 	if (!r) {
 		/* PACKET2 NOP */
-		radeon_ring_write(rdev, 0x80000000);
-		radeon_ring_write(rdev, 0x80000000);
-		radeon_ring_unlock_commit(rdev);
+		radeon_ring_write(ring, 0x80000000);
+		radeon_ring_write(ring, 0x80000000);
+		radeon_ring_unlock_commit(rdev, ring);
 	}
-	rdev->cp.rptr = RREG32(CP_RB_RPTR);
-	return r100_gpu_cp_is_lockup(rdev, lockup, &rdev->cp);
+	ring->rptr = RREG32(CP_RB_RPTR);
+	return r100_gpu_cp_is_lockup(rdev, lockup, ring);
 }
 
 static int evergreen_gpu_soft_reset(struct radeon_device *rdev)
@@ -2470,7 +2476,13 @@ void evergreen_disable_interrupt_state(struct radeon_device *rdev)
 {
 	u32 tmp;
 
-	WREG32(CP_INT_CNTL, CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE);
+	if (rdev->family >= CHIP_CAYMAN) {
+		cayman_cp_int_cntl_setup(rdev, 0,
+					 CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE);
+		cayman_cp_int_cntl_setup(rdev, 1, 0);
+		cayman_cp_int_cntl_setup(rdev, 2, 0);
+	} else
+		WREG32(CP_INT_CNTL, CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE);
 	WREG32(GRBM_INT_CNTL, 0);
 	WREG32(INT_MASK + EVERGREEN_CRTC0_REGISTER_OFFSET, 0);
 	WREG32(INT_MASK + EVERGREEN_CRTC1_REGISTER_OFFSET, 0);
@@ -2515,6 +2527,7 @@ void evergreen_disable_interrupt_state(struct radeon_device *rdev)
 int evergreen_irq_set(struct radeon_device *rdev)
 {
 	u32 cp_int_cntl = CNTX_BUSY_INT_ENABLE | CNTX_EMPTY_INT_ENABLE;
+	u32 cp_int_cntl1 = 0, cp_int_cntl2 = 0;
 	u32 crtc1 = 0, crtc2 = 0, crtc3 = 0, crtc4 = 0, crtc5 = 0, crtc6 = 0;
 	u32 hpd1, hpd2, hpd3, hpd4, hpd5, hpd6;
 	u32 grbm_int_cntl = 0;
@@ -2539,11 +2552,28 @@ int evergreen_irq_set(struct radeon_device *rdev)
 	hpd5 = RREG32(DC_HPD5_INT_CONTROL) & ~DC_HPDx_INT_EN;
 	hpd6 = RREG32(DC_HPD6_INT_CONTROL) & ~DC_HPDx_INT_EN;
 
-	if (rdev->irq.sw_int) {
-		DRM_DEBUG("evergreen_irq_set: sw int\n");
-		cp_int_cntl |= RB_INT_ENABLE;
-		cp_int_cntl |= TIME_STAMP_INT_ENABLE;
+	if (rdev->family >= CHIP_CAYMAN) {
+		/* enable CP interrupts on all rings */
+		if (rdev->irq.sw_int[RADEON_RING_TYPE_GFX_INDEX]) {
+			DRM_DEBUG("evergreen_irq_set: sw int gfx\n");
+			cp_int_cntl |= TIME_STAMP_INT_ENABLE;
+		}
+		if (rdev->irq.sw_int[CAYMAN_RING_TYPE_CP1_INDEX]) {
+			DRM_DEBUG("evergreen_irq_set: sw int cp1\n");
+			cp_int_cntl1 |= TIME_STAMP_INT_ENABLE;
+		}
+		if (rdev->irq.sw_int[CAYMAN_RING_TYPE_CP2_INDEX]) {
+			DRM_DEBUG("evergreen_irq_set: sw int cp2\n");
+			cp_int_cntl2 |= TIME_STAMP_INT_ENABLE;
+		}
+	} else {
+		if (rdev->irq.sw_int[RADEON_RING_TYPE_GFX_INDEX]) {
+			DRM_DEBUG("evergreen_irq_set: sw int gfx\n");
+			cp_int_cntl |= RB_INT_ENABLE;
+			cp_int_cntl |= TIME_STAMP_INT_ENABLE;
+		}
 	}
+
 	if (rdev->irq.crtc_vblank_int[0] ||
 	    rdev->irq.pflip[0]) {
 		DRM_DEBUG("evergreen_irq_set: vblank 0\n");
@@ -2603,7 +2633,12 @@ int evergreen_irq_set(struct radeon_device *rdev)
 		grbm_int_cntl |= GUI_IDLE_INT_ENABLE;
 	}
 
-	WREG32(CP_INT_CNTL, cp_int_cntl);
+	if (rdev->family >= CHIP_CAYMAN) {
+		cayman_cp_int_cntl_setup(rdev, 0, cp_int_cntl);
+		cayman_cp_int_cntl_setup(rdev, 1, cp_int_cntl1);
+		cayman_cp_int_cntl_setup(rdev, 2, cp_int_cntl2);
+	} else
+		WREG32(CP_INT_CNTL, cp_int_cntl);
 	WREG32(GRBM_INT_CNTL, grbm_int_cntl);
 
 	WREG32(INT_MASK + EVERGREEN_CRTC0_REGISTER_OFFSET, crtc1);
@@ -3018,11 +3053,24 @@ restart_ih:
 		case 177: /* CP_INT in IB1 */
 		case 178: /* CP_INT in IB2 */
 			DRM_DEBUG("IH: CP int: 0x%08x\n", src_data);
-			radeon_fence_process(rdev);
+			radeon_fence_process(rdev, RADEON_RING_TYPE_GFX_INDEX);
 			break;
 		case 181: /* CP EOP event */
 			DRM_DEBUG("IH: CP EOP\n");
-			radeon_fence_process(rdev);
+			if (rdev->family >= CHIP_CAYMAN) {
+				switch (src_data) {
+				case 0:
+					radeon_fence_process(rdev, RADEON_RING_TYPE_GFX_INDEX);
+					break;
+				case 1:
+					radeon_fence_process(rdev, CAYMAN_RING_TYPE_CP1_INDEX);
+					break;
+				case 2:
+					radeon_fence_process(rdev, CAYMAN_RING_TYPE_CP2_INDEX);
+					break;
+				}
+			} else
+				radeon_fence_process(rdev, RADEON_RING_TYPE_GFX_INDEX);
 			break;
 		case 233: /* GUI IDLE */
 			DRM_DEBUG("IH: GUI idle\n");
@@ -3052,6 +3100,7 @@ restart_ih:
 
 static int evergreen_startup(struct radeon_device *rdev)
 {
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 	int r;
 
 	/* enable pcie gen2 link */
@@ -3106,6 +3155,12 @@ static int evergreen_startup(struct radeon_device *rdev)
 	if (r)
 		return r;
 
+	r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
+	if (r) {
+		dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
+		return r;
+	}
+
 	/* Enable IRQ */
 	r = r600_irq_init(rdev);
 	if (r) {
@@ -3115,7 +3170,9 @@ static int evergreen_startup(struct radeon_device *rdev)
 	}
 	evergreen_irq_set(rdev);
 
-	r = radeon_ring_init(rdev, rdev->cp.ring_size);
+	r = radeon_ring_init(rdev, ring, ring->ring_size, RADEON_WB_CP_RPTR_OFFSET,
+			     R600_CP_RB_RPTR, R600_CP_RB_WPTR,
+			     0, 0xfffff, RADEON_CP_PACKET2);
 	if (r)
 		return r;
 	r = evergreen_cp_load_microcode(rdev);
@@ -3125,6 +3182,22 @@ static int evergreen_startup(struct radeon_device *rdev)
 	if (r)
 		return r;
 
+	r = radeon_ib_pool_start(rdev);
+	if (r)
+		return r;
+
+	r = r600_ib_test(rdev, RADEON_RING_TYPE_GFX_INDEX);
+	if (r) {
+		DRM_ERROR("radeon: failed testing IB (%d).\n", r);
+		rdev->accel_working = false;
+	}
+
+	r = r600_audio_init(rdev);
+	if (r) {
+		DRM_ERROR("radeon: audio init failed\n");
+		return r;
+	}
+
 	return 0;
 }
 
@@ -3144,31 +3217,30 @@ int evergreen_resume(struct radeon_device *rdev)
 	/* post card */
 	atom_asic_init(rdev->mode_info.atom_context);
 
+	rdev->accel_working = true;
 	r = evergreen_startup(rdev);
 	if (r) {
 		DRM_ERROR("evergreen startup failed on resume\n");
 		return r;
 	}
 
-	r = r600_ib_test(rdev);
-	if (r) {
-		DRM_ERROR("radeon: failed testing IB (%d).\n", r);
-		return r;
-	}
-
 	return r;
 
 }
 
 int evergreen_suspend(struct radeon_device *rdev)
 {
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
+
+	r600_audio_fini(rdev);
 	/* FIXME: we should wait for ring to be empty */
+	radeon_ib_pool_suspend(rdev);
+	r600_blit_suspend(rdev);
 	r700_cp_stop(rdev);
-	rdev->cp.ready = false;
+	ring->ready = false;
 	evergreen_irq_suspend(rdev);
 	radeon_wb_disable(rdev);
 	evergreen_pcie_gart_disable(rdev);
-	r600_blit_suspend(rdev);
 
 	return 0;
 }
@@ -3243,8 +3315,8 @@ int evergreen_init(struct radeon_device *rdev)
 	if (r)
 		return r;
 
-	rdev->cp.ring_obj = NULL;
-	r600_ring_init(rdev, 1024 * 1024);
+	rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ring_obj = NULL;
+	r600_ring_init(rdev, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX], 1024 * 1024);
 
 	rdev->ih.ring_obj = NULL;
 	r600_ih_ring_init(rdev, 64 * 1024);
@@ -3253,29 +3325,24 @@ int evergreen_init(struct radeon_device *rdev)
 	if (r)
 		return r;
 
+	r = radeon_ib_pool_init(rdev);
 	rdev->accel_working = true;
+	if (r) {
+		dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
+		rdev->accel_working = false;
+	}
+
 	r = evergreen_startup(rdev);
 	if (r) {
 		dev_err(rdev->dev, "disabling GPU acceleration\n");
 		r700_cp_fini(rdev);
 		r600_irq_fini(rdev);
 		radeon_wb_fini(rdev);
+		r100_ib_fini(rdev);
 		radeon_irq_kms_fini(rdev);
 		evergreen_pcie_gart_fini(rdev);
 		rdev->accel_working = false;
 	}
-	if (rdev->accel_working) {
-		r = radeon_ib_pool_init(rdev);
-		if (r) {
-			DRM_ERROR("radeon: failed initializing IB pool (%d).\n", r);
-			rdev->accel_working = false;
-		}
-		r = r600_ib_test(rdev);
-		if (r) {
-			DRM_ERROR("radeon: failed testing IB (%d).\n", r);
-			rdev->accel_working = false;
-		}
-	}
 
 	/* Don't start up if the MC ucode is missing on BTC parts.
 	 * The default clocks and voltages before the MC ucode
@@ -3293,15 +3360,17 @@ int evergreen_init(struct radeon_device *rdev)
 
 void evergreen_fini(struct radeon_device *rdev)
 {
+	r600_audio_fini(rdev);
 	r600_blit_fini(rdev);
 	r700_cp_fini(rdev);
 	r600_irq_fini(rdev);
 	radeon_wb_fini(rdev);
-	radeon_ib_pool_fini(rdev);
+	r100_ib_fini(rdev);
 	radeon_irq_kms_fini(rdev);
 	evergreen_pcie_gart_fini(rdev);
 	r600_vram_scratch_fini(rdev);
 	radeon_gem_fini(rdev);
+	radeon_semaphore_driver_fini(rdev);
 	radeon_fence_driver_fini(rdev);
 	radeon_agp_fini(rdev);
 	radeon_bo_fini(rdev);
diff --git a/drivers/gpu/drm/radeon/evergreen_blit_kms.c b/drivers/gpu/drm/radeon/evergreen_blit_kms.c
index 914e5af84163..2379849515c7 100644
--- a/drivers/gpu/drm/radeon/evergreen_blit_kms.c
+++ b/drivers/gpu/drm/radeon/evergreen_blit_kms.c
@@ -49,6 +49,7 @@ static void
 set_render_target(struct radeon_device *rdev, int format,
 		  int w, int h, u64 gpu_addr)
 {
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 	u32 cb_color_info;
 	int pitch, slice;
 
@@ -62,23 +63,23 @@ set_render_target(struct radeon_device *rdev, int format,
 	pitch = (w / 8) - 1;
 	slice = ((w * h) / 64) - 1;
 
-	radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 15));
-	radeon_ring_write(rdev, (CB_COLOR0_BASE - PACKET3_SET_CONTEXT_REG_START) >> 2);
-	radeon_ring_write(rdev, gpu_addr >> 8);
-	radeon_ring_write(rdev, pitch);
-	radeon_ring_write(rdev, slice);
-	radeon_ring_write(rdev, 0);
-	radeon_ring_write(rdev, cb_color_info);
-	radeon_ring_write(rdev, 0);
-	radeon_ring_write(rdev, (w - 1) | ((h - 1) << 16));
-	radeon_ring_write(rdev, 0);
-	radeon_ring_write(rdev, 0);
-	radeon_ring_write(rdev, 0);
-	radeon_ring_write(rdev, 0);
-	radeon_ring_write(rdev, 0);
-	radeon_ring_write(rdev, 0);
-	radeon_ring_write(rdev, 0);
-	radeon_ring_write(rdev, 0);
+	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONTEXT_REG, 15));
+	radeon_ring_write(ring, (CB_COLOR0_BASE - PACKET3_SET_CONTEXT_REG_START) >> 2);
+	radeon_ring_write(ring, gpu_addr >> 8);
+	radeon_ring_write(ring, pitch);
+	radeon_ring_write(ring, slice);
+	radeon_ring_write(ring, 0);
+	radeon_ring_write(ring, cb_color_info);
+	radeon_ring_write(ring, 0);
+	radeon_ring_write(ring, (w - 1) | ((h - 1) << 16));
+	radeon_ring_write(ring, 0);
+	radeon_ring_write(ring, 0);
+	radeon_ring_write(ring, 0);
+	radeon_ring_write(ring, 0);
+	radeon_ring_write(ring, 0);
+	radeon_ring_write(ring, 0);
+	radeon_ring_write(ring, 0);
+	radeon_ring_write(ring, 0);
 }
 
 /* emits 5dw */
@@ -87,6 +88,7 @@ cp_set_surface_sync(struct radeon_device *rdev,
 		    u32 sync_type, u32 size,
 		    u64 mc_addr)
 {
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 	u32 cp_coher_size;
 
 	if (size == 0xffffffff)
@@ -99,39 +101,40 @@ cp_set_surface_sync(struct radeon_device *rdev,
 		 * to the RB directly. For IBs, the CP programs this as part of the
 		 * surface_sync packet.
 		 */
-		radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONFIG_REG, 1));
-		radeon_ring_write(rdev, (0x85e8 - PACKET3_SET_CONFIG_REG_START) >> 2);
-		radeon_ring_write(rdev, 0); /* CP_COHER_CNTL2 */
+		radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
+		radeon_ring_write(ring, (0x85e8 - PACKET3_SET_CONFIG_REG_START) >> 2);
+		radeon_ring_write(ring, 0); /* CP_COHER_CNTL2 */
 	}
-	radeon_ring_write(rdev, PACKET3(PACKET3_SURFACE_SYNC, 3));
-	radeon_ring_write(rdev, sync_type);
-	radeon_ring_write(rdev, cp_coher_size);
-	radeon_ring_write(rdev, mc_addr >> 8);
-	radeon_ring_write(rdev, 10); /* poll interval */
+	radeon_ring_write(ring, PACKET3(PACKET3_SURFACE_SYNC, 3));
+	radeon_ring_write(ring, sync_type);
+	radeon_ring_write(ring, cp_coher_size);
+	radeon_ring_write(ring, mc_addr >> 8);
+	radeon_ring_write(ring, 10); /* poll interval */
 }
 
 /* emits 11dw + 1 surface sync = 16dw */
 static void
 set_shaders(struct radeon_device *rdev)
 {
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 	u64 gpu_addr;
 
 	/* VS */
 	gpu_addr = rdev->r600_blit.shader_gpu_addr + rdev->r600_blit.vs_offset;
-	radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 3));
-	radeon_ring_write(rdev, (SQ_PGM_START_VS - PACKET3_SET_CONTEXT_REG_START) >> 2);
-	radeon_ring_write(rdev, gpu_addr >> 8);
-	radeon_ring_write(rdev, 2);
-	radeon_ring_write(rdev, 0);
+	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONTEXT_REG, 3));
+	radeon_ring_write(ring, (SQ_PGM_START_VS - PACKET3_SET_CONTEXT_REG_START) >> 2);
+	radeon_ring_write(ring, gpu_addr >> 8);
+	radeon_ring_write(ring, 2);
+	radeon_ring_write(ring, 0);
 
 	/* PS */
 	gpu_addr = rdev->r600_blit.shader_gpu_addr + rdev->r600_blit.ps_offset;
-	radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 4));
-	radeon_ring_write(rdev, (SQ_PGM_START_PS - PACKET3_SET_CONTEXT_REG_START) >> 2);
-	radeon_ring_write(rdev, gpu_addr >> 8);
-	radeon_ring_write(rdev, 1);
-	radeon_ring_write(rdev, 0);
-	radeon_ring_write(rdev, 2);
+	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONTEXT_REG, 4));
+	radeon_ring_write(ring, (SQ_PGM_START_PS - PACKET3_SET_CONTEXT_REG_START) >> 2);
+	radeon_ring_write(ring, gpu_addr >> 8);
+	radeon_ring_write(ring, 1);
+	radeon_ring_write(ring, 0);
+	radeon_ring_write(ring, 2);
 
 	gpu_addr = rdev->r600_blit.shader_gpu_addr + rdev->r600_blit.vs_offset;
 	cp_set_surface_sync(rdev, PACKET3_SH_ACTION_ENA, 512, gpu_addr);
@@ -141,6 +144,7 @@ set_shaders(struct radeon_device *rdev)
 static void
 set_vtx_resource(struct radeon_device *rdev, u64 gpu_addr)
 {
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 	u32 sq_vtx_constant_word2, sq_vtx_constant_word3;
 
 	/* high addr, stride */
@@ -155,16 +159,16 @@ set_vtx_resource(struct radeon_device *rdev, u64 gpu_addr)
 		SQ_VTCX_SEL_Z(SQ_SEL_Z) |
 		SQ_VTCX_SEL_W(SQ_SEL_W);
 
-	radeon_ring_write(rdev, PACKET3(PACKET3_SET_RESOURCE, 8));
-	radeon_ring_write(rdev, 0x580);
-	radeon_ring_write(rdev, gpu_addr & 0xffffffff);
-	radeon_ring_write(rdev, 48 - 1); /* size */
-	radeon_ring_write(rdev, sq_vtx_constant_word2);
-	radeon_ring_write(rdev, sq_vtx_constant_word3);
-	radeon_ring_write(rdev, 0);
-	radeon_ring_write(rdev, 0);
-	radeon_ring_write(rdev, 0);
-	radeon_ring_write(rdev, S__SQ_CONSTANT_TYPE(SQ_TEX_VTX_VALID_BUFFER));
+	radeon_ring_write(ring, PACKET3(PACKET3_SET_RESOURCE, 8));
+	radeon_ring_write(ring, 0x580);
+	radeon_ring_write(ring, gpu_addr & 0xffffffff);
+	radeon_ring_write(ring, 48 - 1); /* size */
+	radeon_ring_write(ring, sq_vtx_constant_word2);
+	radeon_ring_write(ring, sq_vtx_constant_word3);
+	radeon_ring_write(ring, 0);
+	radeon_ring_write(ring, 0);
+	radeon_ring_write(ring, 0);
+	radeon_ring_write(ring, S__SQ_CONSTANT_TYPE(SQ_TEX_VTX_VALID_BUFFER));
 
 	if ((rdev->family == CHIP_CEDAR) ||
 	    (rdev->family == CHIP_PALM) ||
@@ -185,6 +189,7 @@ set_tex_resource(struct radeon_device *rdev,
 		 int format, int w, int h, int pitch,
 		 u64 gpu_addr, u32 size)
 {
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 	u32 sq_tex_resource_word0, sq_tex_resource_word1;
 	u32 sq_tex_resource_word4, sq_tex_resource_word7;
 
@@ -208,16 +213,16 @@ set_tex_resource(struct radeon_device *rdev,
 	cp_set_surface_sync(rdev,
 			    PACKET3_TC_ACTION_ENA, size, gpu_addr);
 
-	radeon_ring_write(rdev, PACKET3(PACKET3_SET_RESOURCE, 8));
-	radeon_ring_write(rdev, 0);
-	radeon_ring_write(rdev, sq_tex_resource_word0);
-	radeon_ring_write(rdev, sq_tex_resource_word1);
-	radeon_ring_write(rdev, gpu_addr >> 8);
-	radeon_ring_write(rdev, gpu_addr >> 8);
-	radeon_ring_write(rdev, sq_tex_resource_word4);
-	radeon_ring_write(rdev, 0);
-	radeon_ring_write(rdev, 0);
-	radeon_ring_write(rdev, sq_tex_resource_word7);
+	radeon_ring_write(ring, PACKET3(PACKET3_SET_RESOURCE, 8));
+	radeon_ring_write(ring, 0);
+	radeon_ring_write(ring, sq_tex_resource_word0);
+	radeon_ring_write(ring, sq_tex_resource_word1);
+	radeon_ring_write(ring, gpu_addr >> 8);
+	radeon_ring_write(ring, gpu_addr >> 8);
+	radeon_ring_write(ring, sq_tex_resource_word4);
+	radeon_ring_write(ring, 0);
+	radeon_ring_write(ring, 0);
+	radeon_ring_write(ring, sq_tex_resource_word7);
 }
 
 /* emits 12 */
@@ -225,6 +230,7 @@ static void
 set_scissors(struct radeon_device *rdev, int x1, int y1,
 	     int x2, int y2)
 {
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 	/* workaround some hw bugs */
 	if (x2 == 0)
 		x1 = 1;
@@ -235,43 +241,44 @@ set_scissors(struct radeon_device *rdev, int x1, int y1,
 			x2 = 2;
 	}
 
-	radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 2));
-	radeon_ring_write(rdev, (PA_SC_SCREEN_SCISSOR_TL - PACKET3_SET_CONTEXT_REG_START) >> 2);
-	radeon_ring_write(rdev, (x1 << 0) | (y1 << 16));
-	radeon_ring_write(rdev, (x2 << 0) | (y2 << 16));
+	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONTEXT_REG, 2));
+	radeon_ring_write(ring, (PA_SC_SCREEN_SCISSOR_TL - PACKET3_SET_CONTEXT_REG_START) >> 2);
+	radeon_ring_write(ring, (x1 << 0) | (y1 << 16));
+	radeon_ring_write(ring, (x2 << 0) | (y2 << 16));
 
-	radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 2));
-	radeon_ring_write(rdev, (PA_SC_GENERIC_SCISSOR_TL - PACKET3_SET_CONTEXT_REG_START) >> 2);
-	radeon_ring_write(rdev, (x1 << 0) | (y1 << 16) | (1 << 31));
-	radeon_ring_write(rdev, (x2 << 0) | (y2 << 16));
+	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONTEXT_REG, 2));
+	radeon_ring_write(ring, (PA_SC_GENERIC_SCISSOR_TL - PACKET3_SET_CONTEXT_REG_START) >> 2);
+	radeon_ring_write(ring, (x1 << 0) | (y1 << 16) | (1 << 31));
+	radeon_ring_write(ring, (x2 << 0) | (y2 << 16));
 
-	radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 2));
-	radeon_ring_write(rdev, (PA_SC_WINDOW_SCISSOR_TL - PACKET3_SET_CONTEXT_REG_START) >> 2);
-	radeon_ring_write(rdev, (x1 << 0) | (y1 << 16) | (1 << 31));
-	radeon_ring_write(rdev, (x2 << 0) | (y2 << 16));
+	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONTEXT_REG, 2));
+	radeon_ring_write(ring, (PA_SC_WINDOW_SCISSOR_TL - PACKET3_SET_CONTEXT_REG_START) >> 2);
+	radeon_ring_write(ring, (x1 << 0) | (y1 << 16) | (1 << 31));
+	radeon_ring_write(ring, (x2 << 0) | (y2 << 16));
 }
 
 /* emits 10 */
 static void
 draw_auto(struct radeon_device *rdev)
 {
-	radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONFIG_REG, 1));
-	radeon_ring_write(rdev, (VGT_PRIMITIVE_TYPE - PACKET3_SET_CONFIG_REG_START) >> 2);
-	radeon_ring_write(rdev, DI_PT_RECTLIST);
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
+	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
+	radeon_ring_write(ring, (VGT_PRIMITIVE_TYPE - PACKET3_SET_CONFIG_REG_START) >> 2);
+	radeon_ring_write(ring, DI_PT_RECTLIST);
 
-	radeon_ring_write(rdev, PACKET3(PACKET3_INDEX_TYPE, 0));
-	radeon_ring_write(rdev,
+	radeon_ring_write(ring, PACKET3(PACKET3_INDEX_TYPE, 0));
+	radeon_ring_write(ring,
 #ifdef __BIG_ENDIAN
 			  (2 << 2) |
 #endif
 			  DI_INDEX_SIZE_16_BIT);
 
-	radeon_ring_write(rdev, PACKET3(PACKET3_NUM_INSTANCES, 0));
-	radeon_ring_write(rdev, 1);
+	radeon_ring_write(ring, PACKET3(PACKET3_NUM_INSTANCES, 0));
+	radeon_ring_write(ring, 1);
 
-	radeon_ring_write(rdev, PACKET3(PACKET3_DRAW_INDEX_AUTO, 1));
-	radeon_ring_write(rdev, 3);
-	radeon_ring_write(rdev, DI_SRC_SEL_AUTO_INDEX);
+	radeon_ring_write(ring, PACKET3(PACKET3_DRAW_INDEX_AUTO, 1));
+	radeon_ring_write(ring, 3);
+	radeon_ring_write(ring, DI_SRC_SEL_AUTO_INDEX);
 
 }
 
@@ -279,6 +286,7 @@ draw_auto(struct radeon_device *rdev)
 static void
 set_default_state(struct radeon_device *rdev)
 {
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 	u32 sq_config, sq_gpr_resource_mgmt_1, sq_gpr_resource_mgmt_2, sq_gpr_resource_mgmt_3;
 	u32 sq_thread_resource_mgmt, sq_thread_resource_mgmt_2;
 	u32 sq_stack_resource_mgmt_1, sq_stack_resource_mgmt_2, sq_stack_resource_mgmt_3;
@@ -292,8 +300,8 @@ set_default_state(struct radeon_device *rdev)
 	int dwords;
 
 	/* set clear context state */
-	radeon_ring_write(rdev, PACKET3(PACKET3_CLEAR_STATE, 0));
-	radeon_ring_write(rdev, 0);
+	radeon_ring_write(ring, PACKET3(PACKET3_CLEAR_STATE, 0));
+	radeon_ring_write(ring, 0);
 
 	if (rdev->family < CHIP_CAYMAN) {
 		switch (rdev->family) {
@@ -550,60 +558,60 @@ set_default_state(struct radeon_device *rdev)
 					    NUM_LS_STACK_ENTRIES(num_ls_stack_entries));
 
 		/* disable dyn gprs */
-		radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONFIG_REG, 1));
-		radeon_ring_write(rdev, (SQ_DYN_GPR_CNTL_PS_FLUSH_REQ - PACKET3_SET_CONFIG_REG_START) >> 2);
-		radeon_ring_write(rdev, 0);
+		radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
+		radeon_ring_write(ring, (SQ_DYN_GPR_CNTL_PS_FLUSH_REQ - PACKET3_SET_CONFIG_REG_START) >> 2);
+		radeon_ring_write(ring, 0);
 
 		/* setup LDS */
-		radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONFIG_REG, 1));
-		radeon_ring_write(rdev, (SQ_LDS_RESOURCE_MGMT - PACKET3_SET_CONFIG_REG_START) >> 2);
-		radeon_ring_write(rdev, 0x10001000);
+		radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
+		radeon_ring_write(ring, (SQ_LDS_RESOURCE_MGMT - PACKET3_SET_CONFIG_REG_START) >> 2);
+		radeon_ring_write(ring, 0x10001000);
 
 		/* SQ config */
-		radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONFIG_REG, 11));
-		radeon_ring_write(rdev, (SQ_CONFIG - PACKET3_SET_CONFIG_REG_START) >> 2);
-		radeon_ring_write(rdev, sq_config);
-		radeon_ring_write(rdev, sq_gpr_resource_mgmt_1);
-		radeon_ring_write(rdev, sq_gpr_resource_mgmt_2);
-		radeon_ring_write(rdev, sq_gpr_resource_mgmt_3);
-		radeon_ring_write(rdev, 0);
-		radeon_ring_write(rdev, 0);
-		radeon_ring_write(rdev, sq_thread_resource_mgmt);
-		radeon_ring_write(rdev, sq_thread_resource_mgmt_2);
-		radeon_ring_write(rdev, sq_stack_resource_mgmt_1);
-		radeon_ring_write(rdev, sq_stack_resource_mgmt_2);
-		radeon_ring_write(rdev, sq_stack_resource_mgmt_3);
+		radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 11));
+		radeon_ring_write(ring, (SQ_CONFIG - PACKET3_SET_CONFIG_REG_START) >> 2);
+		radeon_ring_write(ring, sq_config);
+		radeon_ring_write(ring, sq_gpr_resource_mgmt_1);
+		radeon_ring_write(ring, sq_gpr_resource_mgmt_2);
+		radeon_ring_write(ring, sq_gpr_resource_mgmt_3);
+		radeon_ring_write(ring, 0);
+		radeon_ring_write(ring, 0);
+		radeon_ring_write(ring, sq_thread_resource_mgmt);
+		radeon_ring_write(ring, sq_thread_resource_mgmt_2);
+		radeon_ring_write(ring, sq_stack_resource_mgmt_1);
+		radeon_ring_write(ring, sq_stack_resource_mgmt_2);
+		radeon_ring_write(ring, sq_stack_resource_mgmt_3);
 	}
 
 	/* CONTEXT_CONTROL */
-	radeon_ring_write(rdev, 0xc0012800);
-	radeon_ring_write(rdev, 0x80000000);
-	radeon_ring_write(rdev, 0x80000000);
+	radeon_ring_write(ring, 0xc0012800);
+	radeon_ring_write(ring, 0x80000000);
+	radeon_ring_write(ring, 0x80000000);
 
 	/* SQ_VTX_BASE_VTX_LOC */
-	radeon_ring_write(rdev, 0xc0026f00);
-	radeon_ring_write(rdev, 0x00000000);
-	radeon_ring_write(rdev, 0x00000000);
-	radeon_ring_write(rdev, 0x00000000);
+	radeon_ring_write(ring, 0xc0026f00);
+	radeon_ring_write(ring, 0x00000000);
+	radeon_ring_write(ring, 0x00000000);
+	radeon_ring_write(ring, 0x00000000);
 
 	/* SET_SAMPLER */
-	radeon_ring_write(rdev, 0xc0036e00);
-	radeon_ring_write(rdev, 0x00000000);
-	radeon_ring_write(rdev, 0x00000012);
-	radeon_ring_write(rdev, 0x00000000);
-	radeon_ring_write(rdev, 0x00000000);
+	radeon_ring_write(ring, 0xc0036e00);
+	radeon_ring_write(ring, 0x00000000);
+	radeon_ring_write(ring, 0x00000012);
+	radeon_ring_write(ring, 0x00000000);
+	radeon_ring_write(ring, 0x00000000);
 
 	/* set to DX10/11 mode */
-	radeon_ring_write(rdev, PACKET3(PACKET3_MODE_CONTROL, 0));
-	radeon_ring_write(rdev, 1);
+	radeon_ring_write(ring, PACKET3(PACKET3_MODE_CONTROL, 0));
+	radeon_ring_write(ring, 1);
 
 	/* emit an IB pointing at default state */
 	dwords = ALIGN(rdev->r600_blit.state_len, 0x10);
 	gpu_addr = rdev->r600_blit.shader_gpu_addr + rdev->r600_blit.state_offset;
-	radeon_ring_write(rdev, PACKET3(PACKET3_INDIRECT_BUFFER, 2));
-	radeon_ring_write(rdev, gpu_addr & 0xFFFFFFFC);
-	radeon_ring_write(rdev, upper_32_bits(gpu_addr) & 0xFF);
-	radeon_ring_write(rdev, dwords);
+	radeon_ring_write(ring, PACKET3(PACKET3_INDIRECT_BUFFER, 2));
+	radeon_ring_write(ring, gpu_addr & 0xFFFFFFFC);
+	radeon_ring_write(ring, upper_32_bits(gpu_addr) & 0xFF);
+	radeon_ring_write(ring, dwords);
 
 }
 
diff --git a/drivers/gpu/drm/radeon/evergreen_cs.c b/drivers/gpu/drm/radeon/evergreen_cs.c
index cd4590aae154..f7442e62c03f 100644
--- a/drivers/gpu/drm/radeon/evergreen_cs.c
+++ b/drivers/gpu/drm/radeon/evergreen_cs.c
@@ -520,7 +520,7 @@ static int evergreen_cs_check_reg(struct radeon_cs_parser *p, u32 reg, u32 idx)
 		break;
 	case DB_Z_INFO:
 		track->db_z_info = radeon_get_ib_value(p, idx);
-		if (!p->keep_tiling_flags) {
+		if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS)) {
 			r = evergreen_cs_packet_next_reloc(p, &reloc);
 			if (r) {
 				dev_warn(p->dev, "bad SET_CONTEXT_REG "
@@ -649,7 +649,7 @@ static int evergreen_cs_check_reg(struct radeon_cs_parser *p, u32 reg, u32 idx)
 	case CB_COLOR7_INFO:
 		tmp = (reg - CB_COLOR0_INFO) / 0x3c;
 		track->cb_color_info[tmp] = radeon_get_ib_value(p, idx);
-		if (!p->keep_tiling_flags) {
+		if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS)) {
 			r = evergreen_cs_packet_next_reloc(p, &reloc);
 			if (r) {
 				dev_warn(p->dev, "bad SET_CONTEXT_REG "
@@ -666,7 +666,7 @@ static int evergreen_cs_check_reg(struct radeon_cs_parser *p, u32 reg, u32 idx)
 	case CB_COLOR11_INFO:
 		tmp = ((reg - CB_COLOR8_INFO) / 0x1c) + 8;
 		track->cb_color_info[tmp] = radeon_get_ib_value(p, idx);
-		if (!p->keep_tiling_flags) {
+		if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS)) {
 			r = evergreen_cs_packet_next_reloc(p, &reloc);
 			if (r) {
 				dev_warn(p->dev, "bad SET_CONTEXT_REG "
@@ -1355,7 +1355,7 @@ static int evergreen_packet3_check(struct radeon_cs_parser *p,
 					return -EINVAL;
 				}
 				ib[idx+1+(i*8)+2] += (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff);
-				if (!p->keep_tiling_flags) {
+				if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS)) {
 					ib[idx+1+(i*8)+1] |=
 						TEX_ARRAY_MODE(evergreen_cs_get_aray_mode(reloc->lobj.tiling_flags));
 					if (reloc->lobj.tiling_flags & RADEON_TILING_MACRO) {
@@ -1572,3 +1572,241 @@ int evergreen_cs_parse(struct radeon_cs_parser *p)
 	return 0;
 }
 
+/* vm parser */
+static bool evergreen_vm_reg_valid(u32 reg)
+{
+	/* context regs are fine */
+	if (reg >= 0x28000)
+		return true;
+
+	/* check config regs */
+	switch (reg) {
+	case GRBM_GFX_INDEX:
+	case VGT_VTX_VECT_EJECT_REG:
+	case VGT_CACHE_INVALIDATION:
+	case VGT_GS_VERTEX_REUSE:
+	case VGT_PRIMITIVE_TYPE:
+	case VGT_INDEX_TYPE:
+	case VGT_NUM_INDICES:
+	case VGT_NUM_INSTANCES:
+	case VGT_COMPUTE_DIM_X:
+	case VGT_COMPUTE_DIM_Y:
+	case VGT_COMPUTE_DIM_Z:
+	case VGT_COMPUTE_START_X:
+	case VGT_COMPUTE_START_Y:
+	case VGT_COMPUTE_START_Z:
+	case VGT_COMPUTE_INDEX:
+	case VGT_COMPUTE_THREAD_GROUP_SIZE:
+	case VGT_HS_OFFCHIP_PARAM:
+	case PA_CL_ENHANCE:
+	case PA_SU_LINE_STIPPLE_VALUE:
+	case PA_SC_LINE_STIPPLE_STATE:
+	case PA_SC_ENHANCE:
+	case SQ_DYN_GPR_CNTL_PS_FLUSH_REQ:
+	case SQ_DYN_GPR_SIMD_LOCK_EN:
+	case SQ_CONFIG:
+	case SQ_GPR_RESOURCE_MGMT_1:
+	case SQ_GLOBAL_GPR_RESOURCE_MGMT_1:
+	case SQ_GLOBAL_GPR_RESOURCE_MGMT_2:
+	case SQ_CONST_MEM_BASE:
+	case SQ_STATIC_THREAD_MGMT_1:
+	case SQ_STATIC_THREAD_MGMT_2:
+	case SQ_STATIC_THREAD_MGMT_3:
+	case SPI_CONFIG_CNTL:
+	case SPI_CONFIG_CNTL_1:
+	case TA_CNTL_AUX:
+	case DB_DEBUG:
+	case DB_DEBUG2:
+	case DB_DEBUG3:
+	case DB_DEBUG4:
+	case DB_WATERMARKS:
+	case TD_PS_BORDER_COLOR_INDEX:
+	case TD_PS_BORDER_COLOR_RED:
+	case TD_PS_BORDER_COLOR_GREEN:
+	case TD_PS_BORDER_COLOR_BLUE:
+	case TD_PS_BORDER_COLOR_ALPHA:
+	case TD_VS_BORDER_COLOR_INDEX:
+	case TD_VS_BORDER_COLOR_RED:
+	case TD_VS_BORDER_COLOR_GREEN:
+	case TD_VS_BORDER_COLOR_BLUE:
+	case TD_VS_BORDER_COLOR_ALPHA:
+	case TD_GS_BORDER_COLOR_INDEX:
+	case TD_GS_BORDER_COLOR_RED:
+	case TD_GS_BORDER_COLOR_GREEN:
+	case TD_GS_BORDER_COLOR_BLUE:
+	case TD_GS_BORDER_COLOR_ALPHA:
+	case TD_HS_BORDER_COLOR_INDEX:
+	case TD_HS_BORDER_COLOR_RED:
+	case TD_HS_BORDER_COLOR_GREEN:
+	case TD_HS_BORDER_COLOR_BLUE:
+	case TD_HS_BORDER_COLOR_ALPHA:
+	case TD_LS_BORDER_COLOR_INDEX:
+	case TD_LS_BORDER_COLOR_RED:
+	case TD_LS_BORDER_COLOR_GREEN:
+	case TD_LS_BORDER_COLOR_BLUE:
+	case TD_LS_BORDER_COLOR_ALPHA:
+	case TD_CS_BORDER_COLOR_INDEX:
+	case TD_CS_BORDER_COLOR_RED:
+	case TD_CS_BORDER_COLOR_GREEN:
+	case TD_CS_BORDER_COLOR_BLUE:
+	case TD_CS_BORDER_COLOR_ALPHA:
+	case SQ_ESGS_RING_SIZE:
+	case SQ_GSVS_RING_SIZE:
+	case SQ_ESTMP_RING_SIZE:
+	case SQ_GSTMP_RING_SIZE:
+	case SQ_HSTMP_RING_SIZE:
+	case SQ_LSTMP_RING_SIZE:
+	case SQ_PSTMP_RING_SIZE:
+	case SQ_VSTMP_RING_SIZE:
+	case SQ_ESGS_RING_ITEMSIZE:
+	case SQ_ESTMP_RING_ITEMSIZE:
+	case SQ_GSTMP_RING_ITEMSIZE:
+	case SQ_GSVS_RING_ITEMSIZE:
+	case SQ_GS_VERT_ITEMSIZE:
+	case SQ_GS_VERT_ITEMSIZE_1:
+	case SQ_GS_VERT_ITEMSIZE_2:
+	case SQ_GS_VERT_ITEMSIZE_3:
+	case SQ_GSVS_RING_OFFSET_1:
+	case SQ_GSVS_RING_OFFSET_2:
+	case SQ_GSVS_RING_OFFSET_3:
+	case SQ_HSTMP_RING_ITEMSIZE:
+	case SQ_LSTMP_RING_ITEMSIZE:
+	case SQ_PSTMP_RING_ITEMSIZE:
+	case SQ_VSTMP_RING_ITEMSIZE:
+	case VGT_TF_RING_SIZE:
+	case SQ_ESGS_RING_BASE:
+	case SQ_GSVS_RING_BASE:
+	case SQ_ESTMP_RING_BASE:
+	case SQ_GSTMP_RING_BASE:
+	case SQ_HSTMP_RING_BASE:
+	case SQ_LSTMP_RING_BASE:
+	case SQ_PSTMP_RING_BASE:
+	case SQ_VSTMP_RING_BASE:
+	case CAYMAN_VGT_OFFCHIP_LDS_BASE:
+	case CAYMAN_SQ_EX_ALLOC_TABLE_SLOTS:
+		return true;
+	default:
+		return false;
+	}
+}
+
+static int evergreen_vm_packet3_check(struct radeon_device *rdev,
+				      u32 *ib, struct radeon_cs_packet *pkt)
+{
+	u32 idx = pkt->idx + 1;
+	u32 idx_value = ib[idx];
+	u32 start_reg, end_reg, reg, i;
+
+	switch (pkt->opcode) {
+	case PACKET3_NOP:
+	case PACKET3_SET_BASE:
+	case PACKET3_CLEAR_STATE:
+	case PACKET3_INDEX_BUFFER_SIZE:
+	case PACKET3_DISPATCH_DIRECT:
+	case PACKET3_DISPATCH_INDIRECT:
+	case PACKET3_MODE_CONTROL:
+	case PACKET3_SET_PREDICATION:
+	case PACKET3_COND_EXEC:
+	case PACKET3_PRED_EXEC:
+	case PACKET3_DRAW_INDIRECT:
+	case PACKET3_DRAW_INDEX_INDIRECT:
+	case PACKET3_INDEX_BASE:
+	case PACKET3_DRAW_INDEX_2:
+	case PACKET3_CONTEXT_CONTROL:
+	case PACKET3_DRAW_INDEX_OFFSET:
+	case PACKET3_INDEX_TYPE:
+	case PACKET3_DRAW_INDEX:
+	case PACKET3_DRAW_INDEX_AUTO:
+	case PACKET3_DRAW_INDEX_IMMD:
+	case PACKET3_NUM_INSTANCES:
+	case PACKET3_DRAW_INDEX_MULTI_AUTO:
+	case PACKET3_STRMOUT_BUFFER_UPDATE:
+	case PACKET3_DRAW_INDEX_OFFSET_2:
+	case PACKET3_DRAW_INDEX_MULTI_ELEMENT:
+	case PACKET3_MPEG_INDEX:
+	case PACKET3_WAIT_REG_MEM:
+	case PACKET3_MEM_WRITE:
+	case PACKET3_SURFACE_SYNC:
+	case PACKET3_EVENT_WRITE:
+	case PACKET3_EVENT_WRITE_EOP:
+	case PACKET3_EVENT_WRITE_EOS:
+	case PACKET3_SET_CONTEXT_REG:
+	case PACKET3_SET_BOOL_CONST:
+	case PACKET3_SET_LOOP_CONST:
+	case PACKET3_SET_RESOURCE:
+	case PACKET3_SET_SAMPLER:
+	case PACKET3_SET_CTL_CONST:
+	case PACKET3_SET_RESOURCE_OFFSET:
+	case PACKET3_SET_CONTEXT_REG_INDIRECT:
+	case PACKET3_SET_RESOURCE_INDIRECT:
+	case CAYMAN_PACKET3_DEALLOC_STATE:
+		break;
+	case PACKET3_COND_WRITE:
+		if (idx_value & 0x100) {
+			reg = ib[idx + 5] * 4;
+			if (!evergreen_vm_reg_valid(reg))
+				return -EINVAL;
+		}
+		break;
+	case PACKET3_COPY_DW:
+		if (idx_value & 0x2) {
+			reg = ib[idx + 3] * 4;
+			if (!evergreen_vm_reg_valid(reg))
+				return -EINVAL;
+		}
+		break;
+	case PACKET3_SET_CONFIG_REG:
+		start_reg = (idx_value << 2) + PACKET3_SET_CONFIG_REG_START;
+		end_reg = 4 * pkt->count + start_reg - 4;
+		if ((start_reg < PACKET3_SET_CONFIG_REG_START) ||
+		    (start_reg >= PACKET3_SET_CONFIG_REG_END) ||
+		    (end_reg >= PACKET3_SET_CONFIG_REG_END)) {
+			DRM_ERROR("bad PACKET3_SET_CONFIG_REG\n");
+			return -EINVAL;
+		}
+		for (i = 0; i < pkt->count; i++) {
+			reg = start_reg + (4 * i);
+			if (!evergreen_vm_reg_valid(reg))
+				return -EINVAL;
+		}
+		break;
+	default:
+		return -EINVAL;
+	}
+	return 0;
+}
+
+int evergreen_ib_parse(struct radeon_device *rdev, struct radeon_ib *ib)
+{
+	int ret = 0;
+	u32 idx = 0;
+	struct radeon_cs_packet pkt;
+
+	do {
+		pkt.idx = idx;
+		pkt.type = CP_PACKET_GET_TYPE(ib->ptr[idx]);
+		pkt.count = CP_PACKET_GET_COUNT(ib->ptr[idx]);
+		pkt.one_reg_wr = 0;
+		switch (pkt.type) {
+		case PACKET_TYPE0:
+			dev_err(rdev->dev, "Packet0 not allowed!\n");
+			ret = -EINVAL;
+			break;
+		case PACKET_TYPE2:
+			break;
+		case PACKET_TYPE3:
+			pkt.opcode = CP_PACKET3_GET_OPCODE(ib->ptr[idx]);
+			ret = evergreen_vm_packet3_check(rdev, ib->ptr, &pkt);
+			break;
+		default:
+			dev_err(rdev->dev, "Unknown packet type %d !\n", pkt.type);
+			ret = -EINVAL;
+			break;
+		}
+		if (ret)
+			break;
+		idx += pkt.count + 2;
+	} while (idx < ib->length_dw);
+
+	return ret;
+}
diff --git a/drivers/gpu/drm/radeon/evergreen_reg.h b/drivers/gpu/drm/radeon/evergreen_reg.h
index 7d7f2155e34c..4215de95477e 100644
--- a/drivers/gpu/drm/radeon/evergreen_reg.h
+++ b/drivers/gpu/drm/radeon/evergreen_reg.h
@@ -35,6 +35,14 @@
 #define EVERGREEN_P1PLL_SS_CNTL                         0x414
 #define EVERGREEN_P2PLL_SS_CNTL                         0x454
 #       define EVERGREEN_PxPLL_SS_EN                    (1 << 12)
+
+#define EVERGREEN_AUDIO_PLL1_MUL			0x5b0
+#define EVERGREEN_AUDIO_PLL1_DIV			0x5b4
+#define EVERGREEN_AUDIO_PLL1_UNK			0x5bc
+
+#define EVERGREEN_AUDIO_ENABLE				0x5e78
+#define EVERGREEN_AUDIO_VENDOR_ID			0x5ec0
+
 /* GRPH blocks at 0x6800, 0x7400, 0x10000, 0x10c00, 0x11800, 0x12400 */
 #define EVERGREEN_GRPH_ENABLE                           0x6800
 #define EVERGREEN_GRPH_CONTROL                          0x6804
@@ -220,4 +228,9 @@
 #define EVERGREEN_DC_GPIO_HPD_EN                        0x64b8
 #define EVERGREEN_DC_GPIO_HPD_Y                         0x64bc
 
+/* HDMI blocks at 0x7030, 0x7c30, 0x10830, 0x11430, 0x12030, 0x12c30 */
+#define EVERGREEN_HDMI_BASE				0x7030
+
+#define EVERGREEN_HDMI_CONFIG_OFFSET			0xf0
+
 #endif
diff --git a/drivers/gpu/drm/radeon/evergreend.h b/drivers/gpu/drm/radeon/evergreend.h
index e00039e59a75..b502216d42af 100644
--- a/drivers/gpu/drm/radeon/evergreend.h
+++ b/drivers/gpu/drm/radeon/evergreend.h
@@ -242,6 +242,7 @@
 #define	PA_CL_ENHANCE					0x8A14
 #define		CLIP_VTX_REORDER_ENA				(1 << 0)
 #define		NUM_CLIP_SEQ(x)					((x) << 1)
+#define	PA_SC_ENHANCE					0x8BF0
 #define PA_SC_AA_CONFIG					0x28C04
 #define         MSAA_NUM_SAMPLES_SHIFT                  0
 #define         MSAA_NUM_SAMPLES_MASK                   0x3
@@ -319,6 +320,8 @@
 #define	SQ_GPR_RESOURCE_MGMT_3				0x8C0C
 #define		NUM_HS_GPRS(x)					((x) << 0)
 #define		NUM_LS_GPRS(x)					((x) << 16)
+#define	SQ_GLOBAL_GPR_RESOURCE_MGMT_1			0x8C10
+#define	SQ_GLOBAL_GPR_RESOURCE_MGMT_2			0x8C14
 #define	SQ_THREAD_RESOURCE_MGMT				0x8C18
 #define		NUM_PS_THREADS(x)				((x) << 0)
 #define		NUM_VS_THREADS(x)				((x) << 8)
@@ -337,6 +340,10 @@
 #define		NUM_HS_STACK_ENTRIES(x)				((x) << 0)
 #define		NUM_LS_STACK_ENTRIES(x)				((x) << 16)
 #define	SQ_DYN_GPR_CNTL_PS_FLUSH_REQ    		0x8D8C
+#define	SQ_DYN_GPR_SIMD_LOCK_EN    			0x8D94
+#define	SQ_STATIC_THREAD_MGMT_1    			0x8E20
+#define	SQ_STATIC_THREAD_MGMT_2    			0x8E24
+#define	SQ_STATIC_THREAD_MGMT_3    			0x8E28
 #define	SQ_LDS_RESOURCE_MGMT    			0x8E2C
 
 #define	SQ_MS_FIFO_SIZES				0x8CF0
@@ -691,6 +698,7 @@
 #define	PACKET3_DRAW_INDEX_MULTI_ELEMENT		0x36
 #define	PACKET3_MEM_SEMAPHORE				0x39
 #define	PACKET3_MPEG_INDEX				0x3A
+#define	PACKET3_COPY_DW					0x3B
 #define	PACKET3_WAIT_REG_MEM				0x3C
 #define	PACKET3_MEM_WRITE				0x3D
 #define	PACKET3_INDIRECT_BUFFER				0x32
@@ -768,6 +776,8 @@
 #define			SQ_TEX_VTX_VALID_TEXTURE			0x2
 #define			SQ_TEX_VTX_VALID_BUFFER				0x3
 
+#define VGT_VTX_VECT_EJECT_REG				0x88b0
+
 #define SQ_CONST_MEM_BASE				0x8df8
 
 #define SQ_ESGS_RING_BASE				0x8c40
@@ -892,8 +902,27 @@
 #define PA_SC_SCREEN_SCISSOR_TL                         0x28030
 #define PA_SC_GENERIC_SCISSOR_TL                        0x28240
 #define PA_SC_WINDOW_SCISSOR_TL                         0x28204
-#define VGT_PRIMITIVE_TYPE                              0x8958
 
+#define VGT_PRIMITIVE_TYPE                              0x8958
+#define VGT_INDEX_TYPE                                  0x895C
+
+#define VGT_NUM_INDICES                                 0x8970
+
+#define VGT_COMPUTE_DIM_X                               0x8990
+#define VGT_COMPUTE_DIM_Y                               0x8994
+#define VGT_COMPUTE_DIM_Z                               0x8998
+#define VGT_COMPUTE_START_X                             0x899C
+#define VGT_COMPUTE_START_Y                             0x89A0
+#define VGT_COMPUTE_START_Z                             0x89A4
+#define VGT_COMPUTE_INDEX                               0x89A8
+#define VGT_COMPUTE_THREAD_GROUP_SIZE                   0x89AC
+#define VGT_HS_OFFCHIP_PARAM                            0x89B0
+
+#define DB_DEBUG					0x9830
+#define DB_DEBUG2					0x9834
+#define DB_DEBUG3					0x9838
+#define DB_DEBUG4					0x983C
+#define DB_WATERMARKS					0x9854
 #define DB_DEPTH_CONTROL				0x28800
 #define DB_DEPTH_VIEW					0x28008
 #define DB_HTILE_DATA_BASE				0x28014
@@ -1189,8 +1218,40 @@
 #define SQ_VTX_CONSTANT_WORD6_0                         0x30018
 #define SQ_VTX_CONSTANT_WORD7_0                         0x3001c
 
+#define TD_PS_BORDER_COLOR_INDEX                        0xA400
+#define TD_PS_BORDER_COLOR_RED                          0xA404
+#define TD_PS_BORDER_COLOR_GREEN                        0xA408
+#define TD_PS_BORDER_COLOR_BLUE                         0xA40C
+#define TD_PS_BORDER_COLOR_ALPHA                        0xA410
+#define TD_VS_BORDER_COLOR_INDEX                        0xA414
+#define TD_VS_BORDER_COLOR_RED                          0xA418
+#define TD_VS_BORDER_COLOR_GREEN                        0xA41C
+#define TD_VS_BORDER_COLOR_BLUE                         0xA420
+#define TD_VS_BORDER_COLOR_ALPHA                        0xA424
+#define TD_GS_BORDER_COLOR_INDEX                        0xA428
+#define TD_GS_BORDER_COLOR_RED                          0xA42C
+#define TD_GS_BORDER_COLOR_GREEN                        0xA430
+#define TD_GS_BORDER_COLOR_BLUE                         0xA434
+#define TD_GS_BORDER_COLOR_ALPHA                        0xA438
+#define TD_HS_BORDER_COLOR_INDEX                        0xA43C
+#define TD_HS_BORDER_COLOR_RED                          0xA440
+#define TD_HS_BORDER_COLOR_GREEN                        0xA444
+#define TD_HS_BORDER_COLOR_BLUE                         0xA448
+#define TD_HS_BORDER_COLOR_ALPHA                        0xA44C
+#define TD_LS_BORDER_COLOR_INDEX                        0xA450
+#define TD_LS_BORDER_COLOR_RED                          0xA454
+#define TD_LS_BORDER_COLOR_GREEN                        0xA458
+#define TD_LS_BORDER_COLOR_BLUE                         0xA45C
+#define TD_LS_BORDER_COLOR_ALPHA                        0xA460
+#define TD_CS_BORDER_COLOR_INDEX                        0xA464
+#define TD_CS_BORDER_COLOR_RED                          0xA468
+#define TD_CS_BORDER_COLOR_GREEN                        0xA46C
+#define TD_CS_BORDER_COLOR_BLUE                         0xA470
+#define TD_CS_BORDER_COLOR_ALPHA                        0xA474
+
 /* cayman 3D regs */
-#define CAYMAN_VGT_OFFCHIP_LDS_BASE			0x89B0
+#define CAYMAN_VGT_OFFCHIP_LDS_BASE			0x89B4
+#define CAYMAN_SQ_EX_ALLOC_TABLE_SLOTS			0x8E48
 #define CAYMAN_DB_EQAA					0x28804
 #define CAYMAN_DB_DEPTH_INFO				0x2803C
 #define CAYMAN_PA_SC_AA_CONFIG				0x28BE0
diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c
index 0e5799857465..321137295400 100644
--- a/drivers/gpu/drm/radeon/ni.c
+++ b/drivers/gpu/drm/radeon/ni.c
@@ -934,7 +934,7 @@ void cayman_pcie_gart_tlb_flush(struct radeon_device *rdev)
 
 int cayman_pcie_gart_enable(struct radeon_device *rdev)
 {
-	int r;
+	int i, r;
 
 	if (rdev->gart.robj == NULL) {
 		dev_err(rdev->dev, "No VRAM object for PCIE GART.\n");
@@ -945,9 +945,12 @@ int cayman_pcie_gart_enable(struct radeon_device *rdev)
 		return r;
 	radeon_gart_restore(rdev);
 	/* Setup TLB control */
-	WREG32(MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB |
+	WREG32(MC_VM_MX_L1_TLB_CNTL,
+	       (0xA << 7) |
+	       ENABLE_L1_TLB |
 	       ENABLE_L1_FRAGMENT_PROCESSING |
 	       SYSTEM_ACCESS_MODE_NOT_IN_SYS |
+	       ENABLE_ADVANCED_DRIVER_MODEL |
 	       SYSTEM_APERTURE_UNMAPPED_ACCESS_PASS_THRU);
 	/* Setup L2 cache */
 	WREG32(VM_L2_CNTL, ENABLE_L2_CACHE |
@@ -967,9 +970,26 @@ int cayman_pcie_gart_enable(struct radeon_device *rdev)
 	WREG32(VM_CONTEXT0_CNTL2, 0);
 	WREG32(VM_CONTEXT0_CNTL, ENABLE_CONTEXT | PAGE_TABLE_DEPTH(0) |
 				RANGE_PROTECTION_FAULT_ENABLE_DEFAULT);
-	/* disable context1-7 */
+
+	WREG32(0x15D4, 0);
+	WREG32(0x15D8, 0);
+	WREG32(0x15DC, 0);
+
+	/* empty context1-7 */
+	for (i = 1; i < 8; i++) {
+		WREG32(VM_CONTEXT0_PAGE_TABLE_START_ADDR + (i << 2), 0);
+		WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR + (i << 2), 0);
+		WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + (i << 2),
+			rdev->gart.table_addr >> 12);
+	}
+
+	/* enable context1-7 */
+	WREG32(VM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR,
+	       (u32)(rdev->dummy_page.addr >> 12));
 	WREG32(VM_CONTEXT1_CNTL2, 0);
 	WREG32(VM_CONTEXT1_CNTL, 0);
+	WREG32(VM_CONTEXT1_CNTL, ENABLE_CONTEXT | PAGE_TABLE_DEPTH(0) |
+				RANGE_PROTECTION_FAULT_ENABLE_DEFAULT);
 
 	cayman_pcie_gart_tlb_flush(rdev);
 	DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
@@ -1006,9 +1026,69 @@ void cayman_pcie_gart_fini(struct radeon_device *rdev)
 	radeon_gart_fini(rdev);
 }
 
+void cayman_cp_int_cntl_setup(struct radeon_device *rdev,
+			      int ring, u32 cp_int_cntl)
+{
+	u32 srbm_gfx_cntl = RREG32(SRBM_GFX_CNTL) & ~3;
+
+	WREG32(SRBM_GFX_CNTL, srbm_gfx_cntl | (ring & 3));
+	WREG32(CP_INT_CNTL, cp_int_cntl);
+}
+
 /*
  * CP.
  */
+void cayman_fence_ring_emit(struct radeon_device *rdev,
+			    struct radeon_fence *fence)
+{
+	struct radeon_ring *ring = &rdev->ring[fence->ring];
+	u64 addr = rdev->fence_drv[fence->ring].gpu_addr;
+
+	/* flush read cache over gart for this vmid */
+	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
+	radeon_ring_write(ring, (CP_COHER_CNTL2 - PACKET3_SET_CONFIG_REG_START) >> 2);
+	radeon_ring_write(ring, 0);
+	radeon_ring_write(ring, PACKET3(PACKET3_SURFACE_SYNC, 3));
+	radeon_ring_write(ring, PACKET3_TC_ACTION_ENA | PACKET3_SH_ACTION_ENA);
+	radeon_ring_write(ring, 0xFFFFFFFF);
+	radeon_ring_write(ring, 0);
+	radeon_ring_write(ring, 10); /* poll interval */
+	/* EVENT_WRITE_EOP - flush caches, send int */
+	radeon_ring_write(ring, PACKET3(PACKET3_EVENT_WRITE_EOP, 4));
+	radeon_ring_write(ring, EVENT_TYPE(CACHE_FLUSH_AND_INV_EVENT_TS) | EVENT_INDEX(5));
+	radeon_ring_write(ring, addr & 0xffffffff);
+	radeon_ring_write(ring, (upper_32_bits(addr) & 0xff) | DATA_SEL(1) | INT_SEL(2));
+	radeon_ring_write(ring, fence->seq);
+	radeon_ring_write(ring, 0);
+}
+
+void cayman_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib)
+{
+	struct radeon_ring *ring = &rdev->ring[ib->fence->ring];
+
+	/* set to DX10/11 mode */
+	radeon_ring_write(ring, PACKET3(PACKET3_MODE_CONTROL, 0));
+	radeon_ring_write(ring, 1);
+	radeon_ring_write(ring, PACKET3(PACKET3_INDIRECT_BUFFER, 2));
+	radeon_ring_write(ring,
+#ifdef __BIG_ENDIAN
+			  (2 << 0) |
+#endif
+			  (ib->gpu_addr & 0xFFFFFFFC));
+	radeon_ring_write(ring, upper_32_bits(ib->gpu_addr) & 0xFF);
+	radeon_ring_write(ring, ib->length_dw | (ib->vm_id << 24));
+
+	/* flush read cache over gart for this vmid */
+	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
+	radeon_ring_write(ring, (CP_COHER_CNTL2 - PACKET3_SET_CONFIG_REG_START) >> 2);
+	radeon_ring_write(ring, ib->vm_id);
+	radeon_ring_write(ring, PACKET3(PACKET3_SURFACE_SYNC, 3));
+	radeon_ring_write(ring, PACKET3_TC_ACTION_ENA | PACKET3_SH_ACTION_ENA);
+	radeon_ring_write(ring, 0xFFFFFFFF);
+	radeon_ring_write(ring, 0);
+	radeon_ring_write(ring, 10); /* poll interval */
+}
+
 static void cayman_cp_enable(struct radeon_device *rdev, bool enable)
 {
 	if (enable)
@@ -1049,63 +1129,64 @@ static int cayman_cp_load_microcode(struct radeon_device *rdev)
 
 static int cayman_cp_start(struct radeon_device *rdev)
 {
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 	int r, i;
 
-	r = radeon_ring_lock(rdev, 7);
+	r = radeon_ring_lock(rdev, ring, 7);
 	if (r) {
 		DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r);
 		return r;
 	}
-	radeon_ring_write(rdev, PACKET3(PACKET3_ME_INITIALIZE, 5));
-	radeon_ring_write(rdev, 0x1);
-	radeon_ring_write(rdev, 0x0);
-	radeon_ring_write(rdev, rdev->config.cayman.max_hw_contexts - 1);
-	radeon_ring_write(rdev, PACKET3_ME_INITIALIZE_DEVICE_ID(1));
-	radeon_ring_write(rdev, 0);
-	radeon_ring_write(rdev, 0);
-	radeon_ring_unlock_commit(rdev);
+	radeon_ring_write(ring, PACKET3(PACKET3_ME_INITIALIZE, 5));
+	radeon_ring_write(ring, 0x1);
+	radeon_ring_write(ring, 0x0);
+	radeon_ring_write(ring, rdev->config.cayman.max_hw_contexts - 1);
+	radeon_ring_write(ring, PACKET3_ME_INITIALIZE_DEVICE_ID(1));
+	radeon_ring_write(ring, 0);
+	radeon_ring_write(ring, 0);
+	radeon_ring_unlock_commit(rdev, ring);
 
 	cayman_cp_enable(rdev, true);
 
-	r = radeon_ring_lock(rdev, cayman_default_size + 19);
+	r = radeon_ring_lock(rdev, ring, cayman_default_size + 19);
 	if (r) {
 		DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r);
 		return r;
 	}
 
 	/* setup clear context state */
-	radeon_ring_write(rdev, PACKET3(PACKET3_PREAMBLE_CNTL, 0));
-	radeon_ring_write(rdev, PACKET3_PREAMBLE_BEGIN_CLEAR_STATE);
+	radeon_ring_write(ring, PACKET3(PACKET3_PREAMBLE_CNTL, 0));
+	radeon_ring_write(ring, PACKET3_PREAMBLE_BEGIN_CLEAR_STATE);
 
 	for (i = 0; i < cayman_default_size; i++)
-		radeon_ring_write(rdev, cayman_default_state[i]);
+		radeon_ring_write(ring, cayman_default_state[i]);
 
-	radeon_ring_write(rdev, PACKET3(PACKET3_PREAMBLE_CNTL, 0));
-	radeon_ring_write(rdev, PACKET3_PREAMBLE_END_CLEAR_STATE);
+	radeon_ring_write(ring, PACKET3(PACKET3_PREAMBLE_CNTL, 0));
+	radeon_ring_write(ring, PACKET3_PREAMBLE_END_CLEAR_STATE);
 
 	/* set clear context state */
-	radeon_ring_write(rdev, PACKET3(PACKET3_CLEAR_STATE, 0));
-	radeon_ring_write(rdev, 0);
+	radeon_ring_write(ring, PACKET3(PACKET3_CLEAR_STATE, 0));
+	radeon_ring_write(ring, 0);
 
 	/* SQ_VTX_BASE_VTX_LOC */
-	radeon_ring_write(rdev, 0xc0026f00);
-	radeon_ring_write(rdev, 0x00000000);
-	radeon_ring_write(rdev, 0x00000000);
-	radeon_ring_write(rdev, 0x00000000);
+	radeon_ring_write(ring, 0xc0026f00);
+	radeon_ring_write(ring, 0x00000000);
+	radeon_ring_write(ring, 0x00000000);
+	radeon_ring_write(ring, 0x00000000);
 
 	/* Clear consts */
-	radeon_ring_write(rdev, 0xc0036f00);
-	radeon_ring_write(rdev, 0x00000bc4);
-	radeon_ring_write(rdev, 0xffffffff);
-	radeon_ring_write(rdev, 0xffffffff);
-	radeon_ring_write(rdev, 0xffffffff);
+	radeon_ring_write(ring, 0xc0036f00);
+	radeon_ring_write(ring, 0x00000bc4);
+	radeon_ring_write(ring, 0xffffffff);
+	radeon_ring_write(ring, 0xffffffff);
+	radeon_ring_write(ring, 0xffffffff);
 
-	radeon_ring_write(rdev, 0xc0026900);
-	radeon_ring_write(rdev, 0x00000316);
-	radeon_ring_write(rdev, 0x0000000e); /* VGT_VERTEX_REUSE_BLOCK_CNTL */
-	radeon_ring_write(rdev, 0x00000010); /*  */
+	radeon_ring_write(ring, 0xc0026900);
+	radeon_ring_write(ring, 0x00000316);
+	radeon_ring_write(ring, 0x0000000e); /* VGT_VERTEX_REUSE_BLOCK_CNTL */
+	radeon_ring_write(ring, 0x00000010); /*  */
 
-	radeon_ring_unlock_commit(rdev);
+	radeon_ring_unlock_commit(rdev, ring);
 
 	/* XXX init other rings */
 
@@ -1115,11 +1196,12 @@ static int cayman_cp_start(struct radeon_device *rdev)
 static void cayman_cp_fini(struct radeon_device *rdev)
 {
 	cayman_cp_enable(rdev, false);
-	radeon_ring_fini(rdev);
+	radeon_ring_fini(rdev, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX]);
 }
 
 int cayman_cp_resume(struct radeon_device *rdev)
 {
+	struct radeon_ring *ring;
 	u32 tmp;
 	u32 rb_bufsz;
 	int r;
@@ -1136,7 +1218,7 @@ int cayman_cp_resume(struct radeon_device *rdev)
 	WREG32(GRBM_SOFT_RESET, 0);
 	RREG32(GRBM_SOFT_RESET);
 
-	WREG32(CP_SEM_WAIT_TIMER, 0x4);
+	WREG32(CP_SEM_WAIT_TIMER, 0x0);
 
 	/* Set the write pointer delay */
 	WREG32(CP_RB_WPTR_DELAY, 0);
@@ -1145,7 +1227,8 @@ int cayman_cp_resume(struct radeon_device *rdev)
 
 	/* ring 0 - compute and gfx */
 	/* Set ring buffer size */
-	rb_bufsz = drm_order(rdev->cp.ring_size / 8);
+	ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
+	rb_bufsz = drm_order(ring->ring_size / 8);
 	tmp = (drm_order(RADEON_GPU_PAGE_SIZE/8) << 8) | rb_bufsz;
 #ifdef __BIG_ENDIAN
 	tmp |= BUF_SWAP_32BIT;
@@ -1154,8 +1237,8 @@ int cayman_cp_resume(struct radeon_device *rdev)
 
 	/* Initialize the ring buffer's read and write pointers */
 	WREG32(CP_RB0_CNTL, tmp | RB_RPTR_WR_ENA);
-	rdev->cp.wptr = 0;
-	WREG32(CP_RB0_WPTR, rdev->cp.wptr);
+	ring->wptr = 0;
+	WREG32(CP_RB0_WPTR, ring->wptr);
 
 	/* set the wb address wether it's enabled or not */
 	WREG32(CP_RB0_RPTR_ADDR, (rdev->wb.gpu_addr + RADEON_WB_CP_RPTR_OFFSET) & 0xFFFFFFFC);
@@ -1172,13 +1255,14 @@ int cayman_cp_resume(struct radeon_device *rdev)
 	mdelay(1);
 	WREG32(CP_RB0_CNTL, tmp);
 
-	WREG32(CP_RB0_BASE, rdev->cp.gpu_addr >> 8);
+	WREG32(CP_RB0_BASE, ring->gpu_addr >> 8);
 
-	rdev->cp.rptr = RREG32(CP_RB0_RPTR);
+	ring->rptr = RREG32(CP_RB0_RPTR);
 
 	/* ring1  - compute only */
 	/* Set ring buffer size */
-	rb_bufsz = drm_order(rdev->cp1.ring_size / 8);
+	ring = &rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX];
+	rb_bufsz = drm_order(ring->ring_size / 8);
 	tmp = (drm_order(RADEON_GPU_PAGE_SIZE/8) << 8) | rb_bufsz;
 #ifdef __BIG_ENDIAN
 	tmp |= BUF_SWAP_32BIT;
@@ -1187,8 +1271,8 @@ int cayman_cp_resume(struct radeon_device *rdev)
 
 	/* Initialize the ring buffer's read and write pointers */
 	WREG32(CP_RB1_CNTL, tmp | RB_RPTR_WR_ENA);
-	rdev->cp1.wptr = 0;
-	WREG32(CP_RB1_WPTR, rdev->cp1.wptr);
+	ring->wptr = 0;
+	WREG32(CP_RB1_WPTR, ring->wptr);
 
 	/* set the wb address wether it's enabled or not */
 	WREG32(CP_RB1_RPTR_ADDR, (rdev->wb.gpu_addr + RADEON_WB_CP1_RPTR_OFFSET) & 0xFFFFFFFC);
@@ -1197,13 +1281,14 @@ int cayman_cp_resume(struct radeon_device *rdev)
 	mdelay(1);
 	WREG32(CP_RB1_CNTL, tmp);
 
-	WREG32(CP_RB1_BASE, rdev->cp1.gpu_addr >> 8);
+	WREG32(CP_RB1_BASE, ring->gpu_addr >> 8);
 
-	rdev->cp1.rptr = RREG32(CP_RB1_RPTR);
+	ring->rptr = RREG32(CP_RB1_RPTR);
 
 	/* ring2 - compute only */
 	/* Set ring buffer size */
-	rb_bufsz = drm_order(rdev->cp2.ring_size / 8);
+	ring = &rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX];
+	rb_bufsz = drm_order(ring->ring_size / 8);
 	tmp = (drm_order(RADEON_GPU_PAGE_SIZE/8) << 8) | rb_bufsz;
 #ifdef __BIG_ENDIAN
 	tmp |= BUF_SWAP_32BIT;
@@ -1212,8 +1297,8 @@ int cayman_cp_resume(struct radeon_device *rdev)
 
 	/* Initialize the ring buffer's read and write pointers */
 	WREG32(CP_RB2_CNTL, tmp | RB_RPTR_WR_ENA);
-	rdev->cp2.wptr = 0;
-	WREG32(CP_RB2_WPTR, rdev->cp2.wptr);
+	ring->wptr = 0;
+	WREG32(CP_RB2_WPTR, ring->wptr);
 
 	/* set the wb address wether it's enabled or not */
 	WREG32(CP_RB2_RPTR_ADDR, (rdev->wb.gpu_addr + RADEON_WB_CP2_RPTR_OFFSET) & 0xFFFFFFFC);
@@ -1222,28 +1307,28 @@ int cayman_cp_resume(struct radeon_device *rdev)
 	mdelay(1);
 	WREG32(CP_RB2_CNTL, tmp);
 
-	WREG32(CP_RB2_BASE, rdev->cp2.gpu_addr >> 8);
+	WREG32(CP_RB2_BASE, ring->gpu_addr >> 8);
 
-	rdev->cp2.rptr = RREG32(CP_RB2_RPTR);
+	ring->rptr = RREG32(CP_RB2_RPTR);
 
 	/* start the rings */
 	cayman_cp_start(rdev);
-	rdev->cp.ready = true;
-	rdev->cp1.ready = true;
-	rdev->cp2.ready = true;
+	rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = true;
+	rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX].ready = false;
+	rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX].ready = false;
 	/* this only test cp0 */
-	r = radeon_ring_test(rdev);
+	r = radeon_ring_test(rdev, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX]);
 	if (r) {
-		rdev->cp.ready = false;
-		rdev->cp1.ready = false;
-		rdev->cp2.ready = false;
+		rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = false;
+		rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX].ready = false;
+		rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX].ready = false;
 		return r;
 	}
 
 	return 0;
 }
 
-bool cayman_gpu_is_lockup(struct radeon_device *rdev)
+bool cayman_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
 {
 	u32 srbm_status;
 	u32 grbm_status;
@@ -1256,20 +1341,20 @@ bool cayman_gpu_is_lockup(struct radeon_device *rdev)
 	grbm_status_se0 = RREG32(GRBM_STATUS_SE0);
 	grbm_status_se1 = RREG32(GRBM_STATUS_SE1);
 	if (!(grbm_status & GUI_ACTIVE)) {
-		r100_gpu_lockup_update(lockup, &rdev->cp);
+		r100_gpu_lockup_update(lockup, ring);
 		return false;
 	}
 	/* force CP activities */
-	r = radeon_ring_lock(rdev, 2);
+	r = radeon_ring_lock(rdev, ring, 2);
 	if (!r) {
 		/* PACKET2 NOP */
-		radeon_ring_write(rdev, 0x80000000);
-		radeon_ring_write(rdev, 0x80000000);
-		radeon_ring_unlock_commit(rdev);
+		radeon_ring_write(ring, 0x80000000);
+		radeon_ring_write(ring, 0x80000000);
+		radeon_ring_unlock_commit(rdev, ring);
 	}
 	/* XXX deal with CP0,1,2 */
-	rdev->cp.rptr = RREG32(CP_RB0_RPTR);
-	return r100_gpu_cp_is_lockup(rdev, lockup, &rdev->cp);
+	ring->rptr = RREG32(ring->rptr_reg);
+	return r100_gpu_cp_is_lockup(rdev, lockup, ring);
 }
 
 static int cayman_gpu_soft_reset(struct radeon_device *rdev)
@@ -1289,6 +1374,15 @@ static int cayman_gpu_soft_reset(struct radeon_device *rdev)
 		RREG32(GRBM_STATUS_SE1));
 	dev_info(rdev->dev, "  SRBM_STATUS=0x%08X\n",
 		RREG32(SRBM_STATUS));
+	dev_info(rdev->dev, "  VM_CONTEXT0_PROTECTION_FAULT_ADDR   0x%08X\n",
+		 RREG32(0x14F8));
+	dev_info(rdev->dev, "  VM_CONTEXT0_PROTECTION_FAULT_STATUS 0x%08X\n",
+		 RREG32(0x14D8));
+	dev_info(rdev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x%08X\n",
+		 RREG32(0x14FC));
+	dev_info(rdev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
+		 RREG32(0x14DC));
+
 	evergreen_mc_stop(rdev, &save);
 	if (evergreen_mc_wait_for_idle(rdev)) {
 		dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
@@ -1319,6 +1413,7 @@ static int cayman_gpu_soft_reset(struct radeon_device *rdev)
 	(void)RREG32(GRBM_SOFT_RESET);
 	/* Wait a little for things to settle down */
 	udelay(50);
+
 	dev_info(rdev->dev, "  GRBM_STATUS=0x%08X\n",
 		RREG32(GRBM_STATUS));
 	dev_info(rdev->dev, "  GRBM_STATUS_SE0=0x%08X\n",
@@ -1338,6 +1433,7 @@ int cayman_asic_reset(struct radeon_device *rdev)
 
 static int cayman_startup(struct radeon_device *rdev)
 {
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 	int r;
 
 	/* enable pcie gen2 link */
@@ -1378,6 +1474,24 @@ static int cayman_startup(struct radeon_device *rdev)
 	if (r)
 		return r;
 
+	r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
+	if (r) {
+		dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
+		return r;
+	}
+
+	r = radeon_fence_driver_start_ring(rdev, CAYMAN_RING_TYPE_CP1_INDEX);
+	if (r) {
+		dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
+		return r;
+	}
+
+	r = radeon_fence_driver_start_ring(rdev, CAYMAN_RING_TYPE_CP2_INDEX);
+	if (r) {
+		dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
+		return r;
+	}
+
 	/* Enable IRQ */
 	r = r600_irq_init(rdev);
 	if (r) {
@@ -1387,7 +1501,9 @@ static int cayman_startup(struct radeon_device *rdev)
 	}
 	evergreen_irq_set(rdev);
 
-	r = radeon_ring_init(rdev, rdev->cp.ring_size);
+	r = radeon_ring_init(rdev, ring, ring->ring_size, RADEON_WB_CP_RPTR_OFFSET,
+			     CP_RB0_RPTR, CP_RB0_WPTR,
+			     0, 0xfffff, RADEON_CP_PACKET2);
 	if (r)
 		return r;
 	r = cayman_cp_load_microcode(rdev);
@@ -1397,6 +1513,21 @@ static int cayman_startup(struct radeon_device *rdev)
 	if (r)
 		return r;
 
+	r = radeon_ib_pool_start(rdev);
+	if (r)
+		return r;
+
+	r = r600_ib_test(rdev, RADEON_RING_TYPE_GFX_INDEX);
+	if (r) {
+		DRM_ERROR("radeon: failed testing IB (%d).\n", r);
+		rdev->accel_working = false;
+		return r;
+	}
+
+	r = radeon_vm_manager_start(rdev);
+	if (r)
+		return r;
+
 	return 0;
 }
 
@@ -1411,32 +1542,26 @@ int cayman_resume(struct radeon_device *rdev)
 	/* post card */
 	atom_asic_init(rdev->mode_info.atom_context);
 
+	rdev->accel_working = true;
 	r = cayman_startup(rdev);
 	if (r) {
 		DRM_ERROR("cayman startup failed on resume\n");
 		return r;
 	}
-
-	r = r600_ib_test(rdev);
-	if (r) {
-		DRM_ERROR("radeon: failled testing IB (%d).\n", r);
-		return r;
-	}
-
 	return r;
-
 }
 
 int cayman_suspend(struct radeon_device *rdev)
 {
 	/* FIXME: we should wait for ring to be empty */
+	radeon_ib_pool_suspend(rdev);
+	radeon_vm_manager_suspend(rdev);
+	r600_blit_suspend(rdev);
 	cayman_cp_enable(rdev, false);
-	rdev->cp.ready = false;
+	rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = false;
 	evergreen_irq_suspend(rdev);
 	radeon_wb_disable(rdev);
 	cayman_pcie_gart_disable(rdev);
-	r600_blit_suspend(rdev);
-
 	return 0;
 }
 
@@ -1448,6 +1573,7 @@ int cayman_suspend(struct radeon_device *rdev)
  */
 int cayman_init(struct radeon_device *rdev)
 {
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 	int r;
 
 	/* This don't do much */
@@ -1500,8 +1626,8 @@ int cayman_init(struct radeon_device *rdev)
 	if (r)
 		return r;
 
-	rdev->cp.ring_obj = NULL;
-	r600_ring_init(rdev, 1024 * 1024);
+	ring->ring_obj = NULL;
+	r600_ring_init(rdev, ring, 1024 * 1024);
 
 	rdev->ih.ring_obj = NULL;
 	r600_ih_ring_init(rdev, 64 * 1024);
@@ -1510,29 +1636,29 @@ int cayman_init(struct radeon_device *rdev)
 	if (r)
 		return r;
 
+	r = radeon_ib_pool_init(rdev);
 	rdev->accel_working = true;
+	if (r) {
+		dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
+		rdev->accel_working = false;
+	}
+	r = radeon_vm_manager_init(rdev);
+	if (r) {
+		dev_err(rdev->dev, "vm manager initialization failed (%d).\n", r);
+	}
+
 	r = cayman_startup(rdev);
 	if (r) {
 		dev_err(rdev->dev, "disabling GPU acceleration\n");
 		cayman_cp_fini(rdev);
 		r600_irq_fini(rdev);
 		radeon_wb_fini(rdev);
+		r100_ib_fini(rdev);
+		radeon_vm_manager_fini(rdev);
 		radeon_irq_kms_fini(rdev);
 		cayman_pcie_gart_fini(rdev);
 		rdev->accel_working = false;
 	}
-	if (rdev->accel_working) {
-		r = radeon_ib_pool_init(rdev);
-		if (r) {
-			DRM_ERROR("radeon: failed initializing IB pool (%d).\n", r);
-			rdev->accel_working = false;
-		}
-		r = r600_ib_test(rdev);
-		if (r) {
-			DRM_ERROR("radeon: failed testing IB (%d).\n", r);
-			rdev->accel_working = false;
-		}
-	}
 
 	/* Don't start up if the MC ucode is missing.
 	 * The default clocks and voltages before the MC ucode
@@ -1552,11 +1678,13 @@ void cayman_fini(struct radeon_device *rdev)
 	cayman_cp_fini(rdev);
 	r600_irq_fini(rdev);
 	radeon_wb_fini(rdev);
-	radeon_ib_pool_fini(rdev);
+	radeon_vm_manager_fini(rdev);
+	r100_ib_fini(rdev);
 	radeon_irq_kms_fini(rdev);
 	cayman_pcie_gart_fini(rdev);
 	r600_vram_scratch_fini(rdev);
 	radeon_gem_fini(rdev);
+	radeon_semaphore_driver_fini(rdev);
 	radeon_fence_driver_fini(rdev);
 	radeon_bo_fini(rdev);
 	radeon_atombios_fini(rdev);
@@ -1564,3 +1692,84 @@ void cayman_fini(struct radeon_device *rdev)
 	rdev->bios = NULL;
 }
 
+/*
+ * vm
+ */
+int cayman_vm_init(struct radeon_device *rdev)
+{
+	/* number of VMs */
+	rdev->vm_manager.nvm = 8;
+	/* base offset of vram pages */
+	rdev->vm_manager.vram_base_offset = 0;
+	return 0;
+}
+
+void cayman_vm_fini(struct radeon_device *rdev)
+{
+}
+
+int cayman_vm_bind(struct radeon_device *rdev, struct radeon_vm *vm, int id)
+{
+	WREG32(VM_CONTEXT0_PAGE_TABLE_START_ADDR + (id << 2), 0);
+	WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR + (id << 2), vm->last_pfn);
+	WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + (id << 2), vm->pt_gpu_addr >> 12);
+	/* flush hdp cache */
+	WREG32(HDP_MEM_COHERENCY_FLUSH_CNTL, 0x1);
+	/* bits 0-7 are the VM contexts0-7 */
+	WREG32(VM_INVALIDATE_REQUEST, 1 << id);
+	return 0;
+}
+
+void cayman_vm_unbind(struct radeon_device *rdev, struct radeon_vm *vm)
+{
+	WREG32(VM_CONTEXT0_PAGE_TABLE_START_ADDR + (vm->id << 2), 0);
+	WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR + (vm->id << 2), 0);
+	WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + (vm->id << 2), 0);
+	/* flush hdp cache */
+	WREG32(HDP_MEM_COHERENCY_FLUSH_CNTL, 0x1);
+	/* bits 0-7 are the VM contexts0-7 */
+	WREG32(VM_INVALIDATE_REQUEST, 1 << vm->id);
+}
+
+void cayman_vm_tlb_flush(struct radeon_device *rdev, struct radeon_vm *vm)
+{
+	if (vm->id == -1)
+		return;
+
+	/* flush hdp cache */
+	WREG32(HDP_MEM_COHERENCY_FLUSH_CNTL, 0x1);
+	/* bits 0-7 are the VM contexts0-7 */
+	WREG32(VM_INVALIDATE_REQUEST, 1 << vm->id);
+}
+
+#define R600_PTE_VALID     (1 << 0)
+#define R600_PTE_SYSTEM    (1 << 1)
+#define R600_PTE_SNOOPED   (1 << 2)
+#define R600_PTE_READABLE  (1 << 5)
+#define R600_PTE_WRITEABLE (1 << 6)
+
+uint32_t cayman_vm_page_flags(struct radeon_device *rdev,
+			      struct radeon_vm *vm,
+			      uint32_t flags)
+{
+	uint32_t r600_flags = 0;
+
+	r600_flags |= (flags & RADEON_VM_PAGE_VALID) ? R600_PTE_VALID : 0;
+	r600_flags |= (flags & RADEON_VM_PAGE_READABLE) ? R600_PTE_READABLE : 0;
+	r600_flags |= (flags & RADEON_VM_PAGE_WRITEABLE) ? R600_PTE_WRITEABLE : 0;
+	if (flags & RADEON_VM_PAGE_SYSTEM) {
+		r600_flags |= R600_PTE_SYSTEM;
+		r600_flags |= (flags & RADEON_VM_PAGE_SNOOPED) ? R600_PTE_SNOOPED : 0;
+	}
+	return r600_flags;
+}
+
+void cayman_vm_set_page(struct radeon_device *rdev, struct radeon_vm *vm,
+			unsigned pfn, uint64_t addr, uint32_t flags)
+{
+	void __iomem *ptr = (void *)vm->pt;
+
+	addr = addr & 0xFFFFFFFFFFFFF000ULL;
+	addr |= flags;
+	writeq(addr, ptr + (pfn * 8));
+}
diff --git a/drivers/gpu/drm/radeon/nid.h b/drivers/gpu/drm/radeon/nid.h
index 4672869cdb26..f9df2a645e79 100644
--- a/drivers/gpu/drm/radeon/nid.h
+++ b/drivers/gpu/drm/radeon/nid.h
@@ -42,6 +42,9 @@
 #define CAYMAN_MAX_TCC_MASK          0xFF
 
 #define DMIF_ADDR_CONFIG  				0xBD4
+#define	SRBM_GFX_CNTL				        0x0E44
+#define		RINGID(x)					(((x) & 0x3) << 0)
+#define		VMID(x)						(((x) & 0x7) << 0)
 #define	SRBM_STATUS				        0x0E50
 
 #define VM_CONTEXT0_REQUEST_RESPONSE			0x1470
@@ -219,6 +222,7 @@
 #define	SCRATCH_UMSK					0x8540
 #define	SCRATCH_ADDR					0x8544
 #define	CP_SEM_WAIT_TIMER				0x85BC
+#define	CP_COHER_CNTL2					0x85E8
 #define CP_ME_CNTL					0x86D8
 #define		CP_ME_HALT					(1 << 28)
 #define		CP_PFP_HALT					(1 << 26)
@@ -394,6 +398,12 @@
 #define	CP_RB0_RPTR_ADDR				0xC10C
 #define	CP_RB0_RPTR_ADDR_HI				0xC110
 #define	CP_RB0_WPTR					0xC114
+
+#define CP_INT_CNTL                                     0xC124
+#       define CNTX_BUSY_INT_ENABLE                     (1 << 19)
+#       define CNTX_EMPTY_INT_ENABLE                    (1 << 20)
+#       define TIME_STAMP_INT_ENABLE                    (1 << 26)
+
 #define	CP_RB1_BASE					0xC180
 #define	CP_RB1_CNTL					0xC184
 #define	CP_RB1_RPTR_ADDR				0xC188
@@ -411,6 +421,10 @@
 #define	CP_ME_RAM_DATA					0xC160
 #define	CP_DEBUG					0xC1FC
 
+#define VGT_EVENT_INITIATOR                             0x28a90
+#       define CACHE_FLUSH_AND_INV_EVENT_TS                     (0x14 << 0)
+#       define CACHE_FLUSH_AND_INV_EVENT                        (0x16 << 0)
+
 /*
  * PM4
  */
@@ -445,6 +459,7 @@
 #define	PACKET3_DISPATCH_DIRECT				0x15
 #define	PACKET3_DISPATCH_INDIRECT			0x16
 #define	PACKET3_INDIRECT_BUFFER_END			0x17
+#define	PACKET3_MODE_CONTROL				0x18
 #define	PACKET3_SET_PREDICATION				0x20
 #define	PACKET3_REG_RMW					0x21
 #define	PACKET3_COND_EXEC				0x22
@@ -494,7 +509,27 @@
 #define		PACKET3_ME_INITIALIZE_DEVICE_ID(x) ((x) << 16)
 #define	PACKET3_COND_WRITE				0x45
 #define	PACKET3_EVENT_WRITE				0x46
+#define		EVENT_TYPE(x)                           ((x) << 0)
+#define		EVENT_INDEX(x)                          ((x) << 8)
+                /* 0 - any non-TS event
+		 * 1 - ZPASS_DONE
+		 * 2 - SAMPLE_PIPELINESTAT
+		 * 3 - SAMPLE_STREAMOUTSTAT*
+		 * 4 - *S_PARTIAL_FLUSH
+		 * 5 - TS events
+		 */
 #define	PACKET3_EVENT_WRITE_EOP				0x47
+#define		DATA_SEL(x)                             ((x) << 29)
+                /* 0 - discard
+		 * 1 - send low 32bit data
+		 * 2 - send 64bit data
+		 * 3 - send 64bit counter value
+		 */
+#define		INT_SEL(x)                              ((x) << 24)
+                /* 0 - none
+		 * 1 - interrupt only (DATA_SEL = 0)
+		 * 2 - interrupt when data write is confirmed
+		 */
 #define	PACKET3_EVENT_WRITE_EOS				0x48
 #define	PACKET3_PREAMBLE_CNTL				0x4A
 #              define PACKET3_PREAMBLE_BEGIN_CLEAR_STATE     (2 << 28)
diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index bfc08f6320f8..3ec81c3d5108 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -667,7 +667,7 @@ int r100_irq_set(struct radeon_device *rdev)
 		WREG32(R_000040_GEN_INT_CNTL, 0);
 		return -EINVAL;
 	}
-	if (rdev->irq.sw_int) {
+	if (rdev->irq.sw_int[RADEON_RING_TYPE_GFX_INDEX]) {
 		tmp |= RADEON_SW_INT_ENABLE;
 	}
 	if (rdev->irq.gui_idle) {
@@ -739,7 +739,7 @@ int r100_irq_process(struct radeon_device *rdev)
 	while (status) {
 		/* SW interrupt */
 		if (status & RADEON_SW_INT_TEST) {
-			radeon_fence_process(rdev);
+			radeon_fence_process(rdev, RADEON_RING_TYPE_GFX_INDEX);
 		}
 		/* gui idle interrupt */
 		if (status & RADEON_GUI_IDLE_STAT) {
@@ -811,25 +811,36 @@ u32 r100_get_vblank_counter(struct radeon_device *rdev, int crtc)
 void r100_fence_ring_emit(struct radeon_device *rdev,
 			  struct radeon_fence *fence)
 {
+	struct radeon_ring *ring = &rdev->ring[fence->ring];
+
 	/* We have to make sure that caches are flushed before
 	 * CPU might read something from VRAM. */
-	radeon_ring_write(rdev, PACKET0(RADEON_RB3D_DSTCACHE_CTLSTAT, 0));
-	radeon_ring_write(rdev, RADEON_RB3D_DC_FLUSH_ALL);
-	radeon_ring_write(rdev, PACKET0(RADEON_RB3D_ZCACHE_CTLSTAT, 0));
-	radeon_ring_write(rdev, RADEON_RB3D_ZC_FLUSH_ALL);
+	radeon_ring_write(ring, PACKET0(RADEON_RB3D_DSTCACHE_CTLSTAT, 0));
+	radeon_ring_write(ring, RADEON_RB3D_DC_FLUSH_ALL);
+	radeon_ring_write(ring, PACKET0(RADEON_RB3D_ZCACHE_CTLSTAT, 0));
+	radeon_ring_write(ring, RADEON_RB3D_ZC_FLUSH_ALL);
 	/* Wait until IDLE & CLEAN */
-	radeon_ring_write(rdev, PACKET0(RADEON_WAIT_UNTIL, 0));
-	radeon_ring_write(rdev, RADEON_WAIT_2D_IDLECLEAN | RADEON_WAIT_3D_IDLECLEAN);
-	radeon_ring_write(rdev, PACKET0(RADEON_HOST_PATH_CNTL, 0));
-	radeon_ring_write(rdev, rdev->config.r100.hdp_cntl |
+	radeon_ring_write(ring, PACKET0(RADEON_WAIT_UNTIL, 0));
+	radeon_ring_write(ring, RADEON_WAIT_2D_IDLECLEAN | RADEON_WAIT_3D_IDLECLEAN);
+	radeon_ring_write(ring, PACKET0(RADEON_HOST_PATH_CNTL, 0));
+	radeon_ring_write(ring, rdev->config.r100.hdp_cntl |
 				RADEON_HDP_READ_BUFFER_INVALIDATE);
-	radeon_ring_write(rdev, PACKET0(RADEON_HOST_PATH_CNTL, 0));
-	radeon_ring_write(rdev, rdev->config.r100.hdp_cntl);
+	radeon_ring_write(ring, PACKET0(RADEON_HOST_PATH_CNTL, 0));
+	radeon_ring_write(ring, rdev->config.r100.hdp_cntl);
 	/* Emit fence sequence & fire IRQ */
-	radeon_ring_write(rdev, PACKET0(rdev->fence_drv.scratch_reg, 0));
-	radeon_ring_write(rdev, fence->seq);
-	radeon_ring_write(rdev, PACKET0(RADEON_GEN_INT_STATUS, 0));
-	radeon_ring_write(rdev, RADEON_SW_INT_FIRE);
+	radeon_ring_write(ring, PACKET0(rdev->fence_drv[fence->ring].scratch_reg, 0));
+	radeon_ring_write(ring, fence->seq);
+	radeon_ring_write(ring, PACKET0(RADEON_GEN_INT_STATUS, 0));
+	radeon_ring_write(ring, RADEON_SW_INT_FIRE);
+}
+
+void r100_semaphore_ring_emit(struct radeon_device *rdev,
+			      struct radeon_ring *ring,
+			      struct radeon_semaphore *semaphore,
+			      bool emit_wait)
+{
+	/* Unused on older asics, since we don't have semaphores or multiple rings */
+	BUG();
 }
 
 int r100_copy_blit(struct radeon_device *rdev,
@@ -838,6 +849,7 @@ int r100_copy_blit(struct radeon_device *rdev,
 		   unsigned num_gpu_pages,
 		   struct radeon_fence *fence)
 {
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 	uint32_t cur_pages;
 	uint32_t stride_bytes = RADEON_GPU_PAGE_SIZE;
 	uint32_t pitch;
@@ -855,7 +867,7 @@ int r100_copy_blit(struct radeon_device *rdev,
 
 	/* Ask for enough room for blit + flush + fence */
 	ndw = 64 + (10 * num_loops);
-	r = radeon_ring_lock(rdev, ndw);
+	r = radeon_ring_lock(rdev, ring, ndw);
 	if (r) {
 		DRM_ERROR("radeon: moving bo (%d) asking for %u dw.\n", r, ndw);
 		return -EINVAL;
@@ -869,8 +881,8 @@ int r100_copy_blit(struct radeon_device *rdev,
 
 		/* pages are in Y direction - height
 		   page width in X direction - width */
-		radeon_ring_write(rdev, PACKET3(PACKET3_BITBLT_MULTI, 8));
-		radeon_ring_write(rdev,
+		radeon_ring_write(ring, PACKET3(PACKET3_BITBLT_MULTI, 8));
+		radeon_ring_write(ring,
 				  RADEON_GMC_SRC_PITCH_OFFSET_CNTL |
 				  RADEON_GMC_DST_PITCH_OFFSET_CNTL |
 				  RADEON_GMC_SRC_CLIPPING |
@@ -882,26 +894,26 @@ int r100_copy_blit(struct radeon_device *rdev,
 				  RADEON_DP_SRC_SOURCE_MEMORY |
 				  RADEON_GMC_CLR_CMP_CNTL_DIS |
 				  RADEON_GMC_WR_MSK_DIS);
-		radeon_ring_write(rdev, (pitch << 22) | (src_offset >> 10));
-		radeon_ring_write(rdev, (pitch << 22) | (dst_offset >> 10));
-		radeon_ring_write(rdev, (0x1fff) | (0x1fff << 16));
-		radeon_ring_write(rdev, 0);
-		radeon_ring_write(rdev, (0x1fff) | (0x1fff << 16));
-		radeon_ring_write(rdev, num_gpu_pages);
-		radeon_ring_write(rdev, num_gpu_pages);
-		radeon_ring_write(rdev, cur_pages | (stride_pixels << 16));
-	}
-	radeon_ring_write(rdev, PACKET0(RADEON_DSTCACHE_CTLSTAT, 0));
-	radeon_ring_write(rdev, RADEON_RB2D_DC_FLUSH_ALL);
-	radeon_ring_write(rdev, PACKET0(RADEON_WAIT_UNTIL, 0));
-	radeon_ring_write(rdev,
+		radeon_ring_write(ring, (pitch << 22) | (src_offset >> 10));
+		radeon_ring_write(ring, (pitch << 22) | (dst_offset >> 10));
+		radeon_ring_write(ring, (0x1fff) | (0x1fff << 16));
+		radeon_ring_write(ring, 0);
+		radeon_ring_write(ring, (0x1fff) | (0x1fff << 16));
+		radeon_ring_write(ring, num_gpu_pages);
+		radeon_ring_write(ring, num_gpu_pages);
+		radeon_ring_write(ring, cur_pages | (stride_pixels << 16));
+	}
+	radeon_ring_write(ring, PACKET0(RADEON_DSTCACHE_CTLSTAT, 0));
+	radeon_ring_write(ring, RADEON_RB2D_DC_FLUSH_ALL);
+	radeon_ring_write(ring, PACKET0(RADEON_WAIT_UNTIL, 0));
+	radeon_ring_write(ring,
 			  RADEON_WAIT_2D_IDLECLEAN |
 			  RADEON_WAIT_HOST_IDLECLEAN |
 			  RADEON_WAIT_DMA_GUI_IDLE);
 	if (fence) {
 		r = radeon_fence_emit(rdev, fence);
 	}
-	radeon_ring_unlock_commit(rdev);
+	radeon_ring_unlock_commit(rdev, ring);
 	return r;
 }
 
@@ -922,19 +934,20 @@ static int r100_cp_wait_for_idle(struct radeon_device *rdev)
 
 void r100_ring_start(struct radeon_device *rdev)
 {
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 	int r;
 
-	r = radeon_ring_lock(rdev, 2);
+	r = radeon_ring_lock(rdev, ring, 2);
 	if (r) {
 		return;
 	}
-	radeon_ring_write(rdev, PACKET0(RADEON_ISYNC_CNTL, 0));
-	radeon_ring_write(rdev,
+	radeon_ring_write(ring, PACKET0(RADEON_ISYNC_CNTL, 0));
+	radeon_ring_write(ring,
 			  RADEON_ISYNC_ANY2D_IDLE3D |
 			  RADEON_ISYNC_ANY3D_IDLE2D |
 			  RADEON_ISYNC_WAIT_IDLEGUI |
 			  RADEON_ISYNC_CPSCRATCH_IDLEGUI);
-	radeon_ring_unlock_commit(rdev);
+	radeon_ring_unlock_commit(rdev, ring);
 }
 
 
@@ -1035,6 +1048,7 @@ static void r100_cp_load_microcode(struct radeon_device *rdev)
 
 int r100_cp_init(struct radeon_device *rdev, unsigned ring_size)
 {
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 	unsigned rb_bufsz;
 	unsigned rb_blksz;
 	unsigned max_fetch;
@@ -1060,7 +1074,9 @@ int r100_cp_init(struct radeon_device *rdev, unsigned ring_size)
 	rb_bufsz = drm_order(ring_size / 8);
 	ring_size = (1 << (rb_bufsz + 1)) * 4;
 	r100_cp_load_microcode(rdev);
-	r = radeon_ring_init(rdev, ring_size);
+	r = radeon_ring_init(rdev, ring, ring_size, RADEON_WB_CP_RPTR_OFFSET,
+			     RADEON_CP_RB_RPTR, RADEON_CP_RB_WPTR,
+			     0, 0x7fffff, RADEON_CP_PACKET2);
 	if (r) {
 		return r;
 	}
@@ -1069,7 +1085,7 @@ int r100_cp_init(struct radeon_device *rdev, unsigned ring_size)
 	rb_blksz = 9;
 	/* cp will read 128bytes at a time (4 dwords) */
 	max_fetch = 1;
-	rdev->cp.align_mask = 16 - 1;
+	ring->align_mask = 16 - 1;
 	/* Write to CP_RB_WPTR will be delayed for pre_write_timer clocks */
 	pre_write_timer = 64;
 	/* Force CP_RB_WPTR write if written more than one time before the
@@ -1099,13 +1115,13 @@ int r100_cp_init(struct radeon_device *rdev, unsigned ring_size)
 	WREG32(RADEON_CP_RB_CNTL, tmp | RADEON_RB_NO_UPDATE);
 
 	/* Set ring address */
-	DRM_INFO("radeon: ring at 0x%016lX\n", (unsigned long)rdev->cp.gpu_addr);
-	WREG32(RADEON_CP_RB_BASE, rdev->cp.gpu_addr);
+	DRM_INFO("radeon: ring at 0x%016lX\n", (unsigned long)ring->gpu_addr);
+	WREG32(RADEON_CP_RB_BASE, ring->gpu_addr);
 	/* Force read & write ptr to 0 */
 	WREG32(RADEON_CP_RB_CNTL, tmp | RADEON_RB_RPTR_WR_ENA | RADEON_RB_NO_UPDATE);
 	WREG32(RADEON_CP_RB_RPTR_WR, 0);
-	rdev->cp.wptr = 0;
-	WREG32(RADEON_CP_RB_WPTR, rdev->cp.wptr);
+	ring->wptr = 0;
+	WREG32(RADEON_CP_RB_WPTR, ring->wptr);
 
 	/* set the wb address whether it's enabled or not */
 	WREG32(R_00070C_CP_RB_RPTR_ADDR,
@@ -1121,7 +1137,7 @@ int r100_cp_init(struct radeon_device *rdev, unsigned ring_size)
 
 	WREG32(RADEON_CP_RB_CNTL, tmp);
 	udelay(10);
-	rdev->cp.rptr = RREG32(RADEON_CP_RB_RPTR);
+	ring->rptr = RREG32(RADEON_CP_RB_RPTR);
 	/* Set cp mode to bus mastering & enable cp*/
 	WREG32(RADEON_CP_CSQ_MODE,
 	       REG_SET(RADEON_INDIRECT2_START, indirect2_start) |
@@ -1130,12 +1146,12 @@ int r100_cp_init(struct radeon_device *rdev, unsigned ring_size)
 	WREG32(RADEON_CP_CSQ_MODE, 0x00004D4D);
 	WREG32(RADEON_CP_CSQ_CNTL, RADEON_CSQ_PRIBM_INDBM);
 	radeon_ring_start(rdev);
-	r = radeon_ring_test(rdev);
+	r = radeon_ring_test(rdev, ring);
 	if (r) {
 		DRM_ERROR("radeon: cp isn't working (%d).\n", r);
 		return r;
 	}
-	rdev->cp.ready = true;
+	ring->ready = true;
 	radeon_ttm_set_active_vram_size(rdev, rdev->mc.real_vram_size);
 	return 0;
 }
@@ -1147,7 +1163,7 @@ void r100_cp_fini(struct radeon_device *rdev)
 	}
 	/* Disable ring */
 	r100_cp_disable(rdev);
-	radeon_ring_fini(rdev);
+	radeon_ring_fini(rdev, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX]);
 	DRM_INFO("radeon: cp finalized\n");
 }
 
@@ -1155,7 +1171,7 @@ void r100_cp_disable(struct radeon_device *rdev)
 {
 	/* Disable ring */
 	radeon_ttm_set_active_vram_size(rdev, rdev->mc.visible_vram_size);
-	rdev->cp.ready = false;
+	rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = false;
 	WREG32(RADEON_CP_CSQ_MODE, 0);
 	WREG32(RADEON_CP_CSQ_CNTL, 0);
 	WREG32(R_000770_SCRATCH_UMSK, 0);
@@ -1165,13 +1181,6 @@ void r100_cp_disable(struct radeon_device *rdev)
 	}
 }
 
-void r100_cp_commit(struct radeon_device *rdev)
-{
-	WREG32(RADEON_CP_RB_WPTR, rdev->cp.wptr);
-	(void)RREG32(RADEON_CP_RB_WPTR);
-}
-
-
 /*
  * CS functions
  */
@@ -2099,9 +2108,9 @@ int r100_mc_wait_for_idle(struct radeon_device *rdev)
 	return -1;
 }
 
-void r100_gpu_lockup_update(struct r100_gpu_lockup *lockup, struct radeon_cp *cp)
+void r100_gpu_lockup_update(struct r100_gpu_lockup *lockup, struct radeon_ring *ring)
 {
-	lockup->last_cp_rptr = cp->rptr;
+	lockup->last_cp_rptr = ring->rptr;
 	lockup->last_jiffies = jiffies;
 }
 
@@ -2126,20 +2135,20 @@ void r100_gpu_lockup_update(struct r100_gpu_lockup *lockup, struct radeon_cp *cp
  * false positive when CP is just gived nothing to do.
  *
  **/
-bool r100_gpu_cp_is_lockup(struct radeon_device *rdev, struct r100_gpu_lockup *lockup, struct radeon_cp *cp)
+bool r100_gpu_cp_is_lockup(struct radeon_device *rdev, struct r100_gpu_lockup *lockup, struct radeon_ring *ring)
 {
 	unsigned long cjiffies, elapsed;
 
 	cjiffies = jiffies;
 	if (!time_after(cjiffies, lockup->last_jiffies)) {
 		/* likely a wrap around */
-		lockup->last_cp_rptr = cp->rptr;
+		lockup->last_cp_rptr = ring->rptr;
 		lockup->last_jiffies = jiffies;
 		return false;
 	}
-	if (cp->rptr != lockup->last_cp_rptr) {
+	if (ring->rptr != lockup->last_cp_rptr) {
 		/* CP is still working no lockup */
-		lockup->last_cp_rptr = cp->rptr;
+		lockup->last_cp_rptr = ring->rptr;
 		lockup->last_jiffies = jiffies;
 		return false;
 	}
@@ -2152,31 +2161,32 @@ bool r100_gpu_cp_is_lockup(struct radeon_device *rdev, struct r100_gpu_lockup *l
 	return false;
 }
 
-bool r100_gpu_is_lockup(struct radeon_device *rdev)
+bool r100_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
 {
 	u32 rbbm_status;
 	int r;
 
 	rbbm_status = RREG32(R_000E40_RBBM_STATUS);
 	if (!G_000E40_GUI_ACTIVE(rbbm_status)) {
-		r100_gpu_lockup_update(&rdev->config.r100.lockup, &rdev->cp);
+		r100_gpu_lockup_update(&rdev->config.r100.lockup, ring);
 		return false;
 	}
 	/* force CP activities */
-	r = radeon_ring_lock(rdev, 2);
+	r = radeon_ring_lock(rdev, ring, 2);
 	if (!r) {
 		/* PACKET2 NOP */
-		radeon_ring_write(rdev, 0x80000000);
-		radeon_ring_write(rdev, 0x80000000);
-		radeon_ring_unlock_commit(rdev);
+		radeon_ring_write(ring, 0x80000000);
+		radeon_ring_write(ring, 0x80000000);
+		radeon_ring_unlock_commit(rdev, ring);
 	}
-	rdev->cp.rptr = RREG32(RADEON_CP_RB_RPTR);
-	return r100_gpu_cp_is_lockup(rdev, &rdev->config.r100.lockup, &rdev->cp);
+	ring->rptr = RREG32(ring->rptr_reg);
+	return r100_gpu_cp_is_lockup(rdev, &rdev->config.r100.lockup, ring);
 }
 
 void r100_bm_disable(struct radeon_device *rdev)
 {
 	u32 tmp;
+	u16 tmp16;
 
 	/* disable bus mastering */
 	tmp = RREG32(R_000030_BUS_CNTL);
@@ -2187,8 +2197,8 @@ void r100_bm_disable(struct radeon_device *rdev)
 	WREG32(R_000030_BUS_CNTL, (tmp & 0xFFFFFFFF) | 0x00000040);
 	tmp = RREG32(RADEON_BUS_CNTL);
 	mdelay(1);
-	pci_read_config_word(rdev->pdev, 0x4, (u16*)&tmp);
-	pci_write_config_word(rdev->pdev, 0x4, tmp & 0xFFFB);
+	pci_read_config_word(rdev->pdev, 0x4, &tmp16);
+	pci_write_config_word(rdev->pdev, 0x4, tmp16 & 0xFFFB);
 	mdelay(1);
 }
 
@@ -2579,21 +2589,22 @@ static int r100_debugfs_cp_ring_info(struct seq_file *m, void *data)
 	struct drm_info_node *node = (struct drm_info_node *) m->private;
 	struct drm_device *dev = node->minor->dev;
 	struct radeon_device *rdev = dev->dev_private;
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 	uint32_t rdp, wdp;
 	unsigned count, i, j;
 
-	radeon_ring_free_size(rdev);
+	radeon_ring_free_size(rdev, ring);
 	rdp = RREG32(RADEON_CP_RB_RPTR);
 	wdp = RREG32(RADEON_CP_RB_WPTR);
-	count = (rdp + rdev->cp.ring_size - wdp) & rdev->cp.ptr_mask;
+	count = (rdp + ring->ring_size - wdp) & ring->ptr_mask;
 	seq_printf(m, "CP_STAT 0x%08x\n", RREG32(RADEON_CP_STAT));
 	seq_printf(m, "CP_RB_WPTR 0x%08x\n", wdp);
 	seq_printf(m, "CP_RB_RPTR 0x%08x\n", rdp);
-	seq_printf(m, "%u free dwords in ring\n", rdev->cp.ring_free_dw);
+	seq_printf(m, "%u free dwords in ring\n", ring->ring_free_dw);
 	seq_printf(m, "%u dwords in ring\n", count);
 	for (j = 0; j <= count; j++) {
-		i = (rdp + j) & rdev->cp.ptr_mask;
-		seq_printf(m, "r[%04d]=0x%08x\n", i, rdev->cp.ring[i]);
+		i = (rdp + j) & ring->ptr_mask;
+		seq_printf(m, "r[%04d]=0x%08x\n", i, ring->ring[i]);
 	}
 	return 0;
 }
@@ -3635,7 +3646,7 @@ void r100_cs_track_clear(struct radeon_device *rdev, struct r100_cs_track *track
 	}
 }
 
-int r100_ring_test(struct radeon_device *rdev)
+int r100_ring_test(struct radeon_device *rdev, struct radeon_ring *ring)
 {
 	uint32_t scratch;
 	uint32_t tmp = 0;
@@ -3648,15 +3659,15 @@ int r100_ring_test(struct radeon_device *rdev)
 		return r;
 	}
 	WREG32(scratch, 0xCAFEDEAD);
-	r = radeon_ring_lock(rdev, 2);
+	r = radeon_ring_lock(rdev, ring, 2);
 	if (r) {
 		DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r);
 		radeon_scratch_free(rdev, scratch);
 		return r;
 	}
-	radeon_ring_write(rdev, PACKET0(scratch, 0));
-	radeon_ring_write(rdev, 0xDEADBEEF);
-	radeon_ring_unlock_commit(rdev);
+	radeon_ring_write(ring, PACKET0(scratch, 0));
+	radeon_ring_write(ring, 0xDEADBEEF);
+	radeon_ring_unlock_commit(rdev, ring);
 	for (i = 0; i < rdev->usec_timeout; i++) {
 		tmp = RREG32(scratch);
 		if (tmp == 0xDEADBEEF) {
@@ -3677,9 +3688,11 @@ int r100_ring_test(struct radeon_device *rdev)
 
 void r100_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib)
 {
-	radeon_ring_write(rdev, PACKET0(RADEON_CP_IB_BASE, 1));
-	radeon_ring_write(rdev, ib->gpu_addr);
-	radeon_ring_write(rdev, ib->length_dw);
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
+
+	radeon_ring_write(ring, PACKET0(RADEON_CP_IB_BASE, 1));
+	radeon_ring_write(ring, ib->gpu_addr);
+	radeon_ring_write(ring, ib->length_dw);
 }
 
 int r100_ib_test(struct radeon_device *rdev)
@@ -3696,7 +3709,7 @@ int r100_ib_test(struct radeon_device *rdev)
 		return r;
 	}
 	WREG32(scratch, 0xCAFEDEAD);
-	r = radeon_ib_get(rdev, &ib);
+	r = radeon_ib_get(rdev, RADEON_RING_TYPE_GFX_INDEX, &ib, 256);
 	if (r) {
 		return r;
 	}
@@ -3740,34 +3753,16 @@ int r100_ib_test(struct radeon_device *rdev)
 
 void r100_ib_fini(struct radeon_device *rdev)
 {
+	radeon_ib_pool_suspend(rdev);
 	radeon_ib_pool_fini(rdev);
 }
 
-int r100_ib_init(struct radeon_device *rdev)
-{
-	int r;
-
-	r = radeon_ib_pool_init(rdev);
-	if (r) {
-		dev_err(rdev->dev, "failed initializing IB pool (%d).\n", r);
-		r100_ib_fini(rdev);
-		return r;
-	}
-	r = r100_ib_test(rdev);
-	if (r) {
-		dev_err(rdev->dev, "failed testing IB (%d).\n", r);
-		r100_ib_fini(rdev);
-		return r;
-	}
-	return 0;
-}
-
 void r100_mc_stop(struct radeon_device *rdev, struct r100_mc_save *save)
 {
 	/* Shutdown CP we shouldn't need to do that but better be safe than
 	 * sorry
 	 */
-	rdev->cp.ready = false;
+	rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = false;
 	WREG32(R_000740_CP_CSQ_CNTL, 0);
 
 	/* Save few CRTC registers */
@@ -3905,6 +3900,12 @@ static int r100_startup(struct radeon_device *rdev)
 	if (r)
 		return r;
 
+	r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
+	if (r) {
+		dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
+		return r;
+	}
+
 	/* Enable IRQ */
 	r100_irq_set(rdev);
 	rdev->config.r100.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
@@ -3914,11 +3915,18 @@ static int r100_startup(struct radeon_device *rdev)
 		dev_err(rdev->dev, "failed initializing CP (%d).\n", r);
 		return r;
 	}
-	r = r100_ib_init(rdev);
+
+	r = radeon_ib_pool_start(rdev);
+	if (r)
+		return r;
+
+	r = r100_ib_test(rdev);
 	if (r) {
-		dev_err(rdev->dev, "failed initializing IB (%d).\n", r);
+		dev_err(rdev->dev, "failed testing IB (%d).\n", r);
+		rdev->accel_working = false;
 		return r;
 	}
+
 	return 0;
 }
 
@@ -3941,11 +3949,14 @@ int r100_resume(struct radeon_device *rdev)
 	r100_clock_startup(rdev);
 	/* Initialize surface registers */
 	radeon_surface_init(rdev);
+
+	rdev->accel_working = true;
 	return r100_startup(rdev);
 }
 
 int r100_suspend(struct radeon_device *rdev)
 {
+	radeon_ib_pool_suspend(rdev);
 	r100_cp_disable(rdev);
 	radeon_wb_disable(rdev);
 	r100_irq_disable(rdev);
@@ -4064,7 +4075,14 @@ int r100_init(struct radeon_device *rdev)
 			return r;
 	}
 	r100_set_safe_registers(rdev);
+
+	r = radeon_ib_pool_init(rdev);
 	rdev->accel_working = true;
+	if (r) {
+		dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
+		rdev->accel_working = false;
+	}
+
 	r = r100_startup(rdev);
 	if (r) {
 		/* Somethings want wront with the accel init stop accel */
diff --git a/drivers/gpu/drm/radeon/r200.c b/drivers/gpu/drm/radeon/r200.c
index a1f3ba063c2d..eba4cbfa78f6 100644
--- a/drivers/gpu/drm/radeon/r200.c
+++ b/drivers/gpu/drm/radeon/r200.c
@@ -87,6 +87,7 @@ int r200_copy_dma(struct radeon_device *rdev,
 		  unsigned num_gpu_pages,
 		  struct radeon_fence *fence)
 {
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 	uint32_t size;
 	uint32_t cur_size;
 	int i, num_loops;
@@ -95,33 +96,33 @@ int r200_copy_dma(struct radeon_device *rdev,
 	/* radeon pitch is /64 */
 	size = num_gpu_pages << RADEON_GPU_PAGE_SHIFT;
 	num_loops = DIV_ROUND_UP(size, 0x1FFFFF);
-	r = radeon_ring_lock(rdev, num_loops * 4 + 64);
+	r = radeon_ring_lock(rdev, ring, num_loops * 4 + 64);
 	if (r) {
 		DRM_ERROR("radeon: moving bo (%d).\n", r);
 		return r;
 	}
 	/* Must wait for 2D idle & clean before DMA or hangs might happen */
-	radeon_ring_write(rdev, PACKET0(RADEON_WAIT_UNTIL, 0));
-	radeon_ring_write(rdev, (1 << 16));
+	radeon_ring_write(ring, PACKET0(RADEON_WAIT_UNTIL, 0));
+	radeon_ring_write(ring, (1 << 16));
 	for (i = 0; i < num_loops; i++) {
 		cur_size = size;
 		if (cur_size > 0x1FFFFF) {
 			cur_size = 0x1FFFFF;
 		}
 		size -= cur_size;
-		radeon_ring_write(rdev, PACKET0(0x720, 2));
-		radeon_ring_write(rdev, src_offset);
-		radeon_ring_write(rdev, dst_offset);
-		radeon_ring_write(rdev, cur_size | (1 << 31) | (1 << 30));
+		radeon_ring_write(ring, PACKET0(0x720, 2));
+		radeon_ring_write(ring, src_offset);
+		radeon_ring_write(ring, dst_offset);
+		radeon_ring_write(ring, cur_size | (1 << 31) | (1 << 30));
 		src_offset += cur_size;
 		dst_offset += cur_size;
 	}
-	radeon_ring_write(rdev, PACKET0(RADEON_WAIT_UNTIL, 0));
-	radeon_ring_write(rdev, RADEON_WAIT_DMA_GUI_IDLE);
+	radeon_ring_write(ring, PACKET0(RADEON_WAIT_UNTIL, 0));
+	radeon_ring_write(ring, RADEON_WAIT_DMA_GUI_IDLE);
 	if (fence) {
 		r = radeon_fence_emit(rdev, fence);
 	}
-	radeon_ring_unlock_commit(rdev);
+	radeon_ring_unlock_commit(rdev, ring);
 	return r;
 }
 
diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c
index c93bc64707e1..3fc0d29a5f39 100644
--- a/drivers/gpu/drm/radeon/r300.c
+++ b/drivers/gpu/drm/radeon/r300.c
@@ -175,37 +175,40 @@ void rv370_pcie_gart_fini(struct radeon_device *rdev)
 void r300_fence_ring_emit(struct radeon_device *rdev,
 			  struct radeon_fence *fence)
 {
+	struct radeon_ring *ring = &rdev->ring[fence->ring];
+
 	/* Who ever call radeon_fence_emit should call ring_lock and ask
 	 * for enough space (today caller are ib schedule and buffer move) */
 	/* Write SC register so SC & US assert idle */
-	radeon_ring_write(rdev, PACKET0(R300_RE_SCISSORS_TL, 0));
-	radeon_ring_write(rdev, 0);
-	radeon_ring_write(rdev, PACKET0(R300_RE_SCISSORS_BR, 0));
-	radeon_ring_write(rdev, 0);
+	radeon_ring_write(ring, PACKET0(R300_RE_SCISSORS_TL, 0));
+	radeon_ring_write(ring, 0);
+	radeon_ring_write(ring, PACKET0(R300_RE_SCISSORS_BR, 0));
+	radeon_ring_write(ring, 0);
 	/* Flush 3D cache */
-	radeon_ring_write(rdev, PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0));
-	radeon_ring_write(rdev, R300_RB3D_DC_FLUSH);
-	radeon_ring_write(rdev, PACKET0(R300_RB3D_ZCACHE_CTLSTAT, 0));
-	radeon_ring_write(rdev, R300_ZC_FLUSH);
+	radeon_ring_write(ring, PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0));
+	radeon_ring_write(ring, R300_RB3D_DC_FLUSH);
+	radeon_ring_write(ring, PACKET0(R300_RB3D_ZCACHE_CTLSTAT, 0));
+	radeon_ring_write(ring, R300_ZC_FLUSH);
 	/* Wait until IDLE & CLEAN */
-	radeon_ring_write(rdev, PACKET0(RADEON_WAIT_UNTIL, 0));
-	radeon_ring_write(rdev, (RADEON_WAIT_3D_IDLECLEAN |
+	radeon_ring_write(ring, PACKET0(RADEON_WAIT_UNTIL, 0));
+	radeon_ring_write(ring, (RADEON_WAIT_3D_IDLECLEAN |
 				 RADEON_WAIT_2D_IDLECLEAN |
 				 RADEON_WAIT_DMA_GUI_IDLE));
-	radeon_ring_write(rdev, PACKET0(RADEON_HOST_PATH_CNTL, 0));
-	radeon_ring_write(rdev, rdev->config.r300.hdp_cntl |
+	radeon_ring_write(ring, PACKET0(RADEON_HOST_PATH_CNTL, 0));
+	radeon_ring_write(ring, rdev->config.r300.hdp_cntl |
 				RADEON_HDP_READ_BUFFER_INVALIDATE);
-	radeon_ring_write(rdev, PACKET0(RADEON_HOST_PATH_CNTL, 0));
-	radeon_ring_write(rdev, rdev->config.r300.hdp_cntl);
+	radeon_ring_write(ring, PACKET0(RADEON_HOST_PATH_CNTL, 0));
+	radeon_ring_write(ring, rdev->config.r300.hdp_cntl);
 	/* Emit fence sequence & fire IRQ */
-	radeon_ring_write(rdev, PACKET0(rdev->fence_drv.scratch_reg, 0));
-	radeon_ring_write(rdev, fence->seq);
-	radeon_ring_write(rdev, PACKET0(RADEON_GEN_INT_STATUS, 0));
-	radeon_ring_write(rdev, RADEON_SW_INT_FIRE);
+	radeon_ring_write(ring, PACKET0(rdev->fence_drv[fence->ring].scratch_reg, 0));
+	radeon_ring_write(ring, fence->seq);
+	radeon_ring_write(ring, PACKET0(RADEON_GEN_INT_STATUS, 0));
+	radeon_ring_write(ring, RADEON_SW_INT_FIRE);
 }
 
 void r300_ring_start(struct radeon_device *rdev)
 {
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 	unsigned gb_tile_config;
 	int r;
 
@@ -227,44 +230,44 @@ void r300_ring_start(struct radeon_device *rdev)
 		break;
 	}
 
-	r = radeon_ring_lock(rdev, 64);
+	r = radeon_ring_lock(rdev, ring, 64);
 	if (r) {
 		return;
 	}
-	radeon_ring_write(rdev, PACKET0(RADEON_ISYNC_CNTL, 0));
-	radeon_ring_write(rdev,
+	radeon_ring_write(ring, PACKET0(RADEON_ISYNC_CNTL, 0));
+	radeon_ring_write(ring,
 			  RADEON_ISYNC_ANY2D_IDLE3D |
 			  RADEON_ISYNC_ANY3D_IDLE2D |
 			  RADEON_ISYNC_WAIT_IDLEGUI |
 			  RADEON_ISYNC_CPSCRATCH_IDLEGUI);
-	radeon_ring_write(rdev, PACKET0(R300_GB_TILE_CONFIG, 0));
-	radeon_ring_write(rdev, gb_tile_config);
-	radeon_ring_write(rdev, PACKET0(RADEON_WAIT_UNTIL, 0));
-	radeon_ring_write(rdev,
+	radeon_ring_write(ring, PACKET0(R300_GB_TILE_CONFIG, 0));
+	radeon_ring_write(ring, gb_tile_config);
+	radeon_ring_write(ring, PACKET0(RADEON_WAIT_UNTIL, 0));
+	radeon_ring_write(ring,
 			  RADEON_WAIT_2D_IDLECLEAN |
 			  RADEON_WAIT_3D_IDLECLEAN);
-	radeon_ring_write(rdev, PACKET0(R300_DST_PIPE_CONFIG, 0));
-	radeon_ring_write(rdev, R300_PIPE_AUTO_CONFIG);
-	radeon_ring_write(rdev, PACKET0(R300_GB_SELECT, 0));
-	radeon_ring_write(rdev, 0);
-	radeon_ring_write(rdev, PACKET0(R300_GB_ENABLE, 0));
-	radeon_ring_write(rdev, 0);
-	radeon_ring_write(rdev, PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0));
-	radeon_ring_write(rdev, R300_RB3D_DC_FLUSH | R300_RB3D_DC_FREE);
-	radeon_ring_write(rdev, PACKET0(R300_RB3D_ZCACHE_CTLSTAT, 0));
-	radeon_ring_write(rdev, R300_ZC_FLUSH | R300_ZC_FREE);
-	radeon_ring_write(rdev, PACKET0(RADEON_WAIT_UNTIL, 0));
-	radeon_ring_write(rdev,
+	radeon_ring_write(ring, PACKET0(R300_DST_PIPE_CONFIG, 0));
+	radeon_ring_write(ring, R300_PIPE_AUTO_CONFIG);
+	radeon_ring_write(ring, PACKET0(R300_GB_SELECT, 0));
+	radeon_ring_write(ring, 0);
+	radeon_ring_write(ring, PACKET0(R300_GB_ENABLE, 0));
+	radeon_ring_write(ring, 0);
+	radeon_ring_write(ring, PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0));
+	radeon_ring_write(ring, R300_RB3D_DC_FLUSH | R300_RB3D_DC_FREE);
+	radeon_ring_write(ring, PACKET0(R300_RB3D_ZCACHE_CTLSTAT, 0));
+	radeon_ring_write(ring, R300_ZC_FLUSH | R300_ZC_FREE);
+	radeon_ring_write(ring, PACKET0(RADEON_WAIT_UNTIL, 0));
+	radeon_ring_write(ring,
 			  RADEON_WAIT_2D_IDLECLEAN |
 			  RADEON_WAIT_3D_IDLECLEAN);
-	radeon_ring_write(rdev, PACKET0(R300_GB_AA_CONFIG, 0));
-	radeon_ring_write(rdev, 0);
-	radeon_ring_write(rdev, PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0));
-	radeon_ring_write(rdev, R300_RB3D_DC_FLUSH | R300_RB3D_DC_FREE);
-	radeon_ring_write(rdev, PACKET0(R300_RB3D_ZCACHE_CTLSTAT, 0));
-	radeon_ring_write(rdev, R300_ZC_FLUSH | R300_ZC_FREE);
-	radeon_ring_write(rdev, PACKET0(R300_GB_MSPOS0, 0));
-	radeon_ring_write(rdev,
+	radeon_ring_write(ring, PACKET0(R300_GB_AA_CONFIG, 0));
+	radeon_ring_write(ring, 0);
+	radeon_ring_write(ring, PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0));
+	radeon_ring_write(ring, R300_RB3D_DC_FLUSH | R300_RB3D_DC_FREE);
+	radeon_ring_write(ring, PACKET0(R300_RB3D_ZCACHE_CTLSTAT, 0));
+	radeon_ring_write(ring, R300_ZC_FLUSH | R300_ZC_FREE);
+	radeon_ring_write(ring, PACKET0(R300_GB_MSPOS0, 0));
+	radeon_ring_write(ring,
 			  ((6 << R300_MS_X0_SHIFT) |
 			   (6 << R300_MS_Y0_SHIFT) |
 			   (6 << R300_MS_X1_SHIFT) |
@@ -273,8 +276,8 @@ void r300_ring_start(struct radeon_device *rdev)
 			   (6 << R300_MS_Y2_SHIFT) |
 			   (6 << R300_MSBD0_Y_SHIFT) |
 			   (6 << R300_MSBD0_X_SHIFT)));
-	radeon_ring_write(rdev, PACKET0(R300_GB_MSPOS1, 0));
-	radeon_ring_write(rdev,
+	radeon_ring_write(ring, PACKET0(R300_GB_MSPOS1, 0));
+	radeon_ring_write(ring,
 			  ((6 << R300_MS_X3_SHIFT) |
 			   (6 << R300_MS_Y3_SHIFT) |
 			   (6 << R300_MS_X4_SHIFT) |
@@ -282,16 +285,16 @@ void r300_ring_start(struct radeon_device *rdev)
 			   (6 << R300_MS_X5_SHIFT) |
 			   (6 << R300_MS_Y5_SHIFT) |
 			   (6 << R300_MSBD1_SHIFT)));
-	radeon_ring_write(rdev, PACKET0(R300_GA_ENHANCE, 0));
-	radeon_ring_write(rdev, R300_GA_DEADLOCK_CNTL | R300_GA_FASTSYNC_CNTL);
-	radeon_ring_write(rdev, PACKET0(R300_GA_POLY_MODE, 0));
-	radeon_ring_write(rdev,
+	radeon_ring_write(ring, PACKET0(R300_GA_ENHANCE, 0));
+	radeon_ring_write(ring, R300_GA_DEADLOCK_CNTL | R300_GA_FASTSYNC_CNTL);
+	radeon_ring_write(ring, PACKET0(R300_GA_POLY_MODE, 0));
+	radeon_ring_write(ring,
 			  R300_FRONT_PTYPE_TRIANGE | R300_BACK_PTYPE_TRIANGE);
-	radeon_ring_write(rdev, PACKET0(R300_GA_ROUND_MODE, 0));
-	radeon_ring_write(rdev,
+	radeon_ring_write(ring, PACKET0(R300_GA_ROUND_MODE, 0));
+	radeon_ring_write(ring,
 			  R300_GEOMETRY_ROUND_NEAREST |
 			  R300_COLOR_ROUND_NEAREST);
-	radeon_ring_unlock_commit(rdev);
+	radeon_ring_unlock_commit(rdev, ring);
 }
 
 void r300_errata(struct radeon_device *rdev)
@@ -375,26 +378,26 @@ void r300_gpu_init(struct radeon_device *rdev)
 		 rdev->num_gb_pipes, rdev->num_z_pipes);
 }
 
-bool r300_gpu_is_lockup(struct radeon_device *rdev)
+bool r300_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
 {
 	u32 rbbm_status;
 	int r;
 
 	rbbm_status = RREG32(R_000E40_RBBM_STATUS);
 	if (!G_000E40_GUI_ACTIVE(rbbm_status)) {
-		r100_gpu_lockup_update(&rdev->config.r300.lockup, &rdev->cp);
+		r100_gpu_lockup_update(&rdev->config.r300.lockup, ring);
 		return false;
 	}
 	/* force CP activities */
-	r = radeon_ring_lock(rdev, 2);
+	r = radeon_ring_lock(rdev, ring, 2);
 	if (!r) {
 		/* PACKET2 NOP */
-		radeon_ring_write(rdev, 0x80000000);
-		radeon_ring_write(rdev, 0x80000000);
-		radeon_ring_unlock_commit(rdev);
+		radeon_ring_write(ring, 0x80000000);
+		radeon_ring_write(ring, 0x80000000);
+		radeon_ring_unlock_commit(rdev, ring);
 	}
-	rdev->cp.rptr = RREG32(RADEON_CP_RB_RPTR);
-	return r100_gpu_cp_is_lockup(rdev, &rdev->config.r300.lockup, &rdev->cp);
+	ring->rptr = RREG32(RADEON_CP_RB_RPTR);
+	return r100_gpu_cp_is_lockup(rdev, &rdev->config.r300.lockup, ring);
 }
 
 int r300_asic_reset(struct radeon_device *rdev)
@@ -701,7 +704,7 @@ static int r300_packet0_check(struct radeon_cs_parser *p,
 			return r;
 		}
 
-		if (p->keep_tiling_flags) {
+		if (p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS) {
 			ib[idx] = (idx_value & 31) | /* keep the 1st 5 bits */
 				  ((idx_value & ~31) + (u32)reloc->lobj.gpu_offset);
 		} else {
@@ -765,7 +768,7 @@ static int r300_packet0_check(struct radeon_cs_parser *p,
 		/* RB3D_COLORPITCH1 */
 		/* RB3D_COLORPITCH2 */
 		/* RB3D_COLORPITCH3 */
-		if (!p->keep_tiling_flags) {
+		if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS)) {
 			r = r100_cs_packet_next_reloc(p, &reloc);
 			if (r) {
 				DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
@@ -850,7 +853,7 @@ static int r300_packet0_check(struct radeon_cs_parser *p,
 		break;
 	case 0x4F24:
 		/* ZB_DEPTHPITCH */
-		if (!p->keep_tiling_flags) {
+		if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS)) {
 			r = r100_cs_packet_next_reloc(p, &reloc);
 			if (r) {
 				DRM_ERROR("No reloc for ib[%d]=0x%04X\n",
@@ -1396,6 +1399,12 @@ static int r300_startup(struct radeon_device *rdev)
 	if (r)
 		return r;
 
+	r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
+	if (r) {
+		dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
+		return r;
+	}
+
 	/* Enable IRQ */
 	r100_irq_set(rdev);
 	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
@@ -1405,11 +1414,18 @@ static int r300_startup(struct radeon_device *rdev)
 		dev_err(rdev->dev, "failed initializing CP (%d).\n", r);
 		return r;
 	}
-	r = r100_ib_init(rdev);
+
+	r = radeon_ib_pool_start(rdev);
+	if (r)
+		return r;
+
+	r = r100_ib_test(rdev);
 	if (r) {
-		dev_err(rdev->dev, "failed initializing IB (%d).\n", r);
+		dev_err(rdev->dev, "failed testing IB (%d).\n", r);
+		rdev->accel_working = false;
 		return r;
 	}
+
 	return 0;
 }
 
@@ -1434,11 +1450,14 @@ int r300_resume(struct radeon_device *rdev)
 	r300_clock_startup(rdev);
 	/* Initialize surface registers */
 	radeon_surface_init(rdev);
+
+	rdev->accel_working = true;
 	return r300_startup(rdev);
 }
 
 int r300_suspend(struct radeon_device *rdev)
 {
+	radeon_ib_pool_suspend(rdev);
 	r100_cp_disable(rdev);
 	radeon_wb_disable(rdev);
 	r100_irq_disable(rdev);
@@ -1539,7 +1558,14 @@ int r300_init(struct radeon_device *rdev)
 			return r;
 	}
 	r300_set_reg_safe(rdev);
+
+	r = radeon_ib_pool_init(rdev);
 	rdev->accel_working = true;
+	if (r) {
+		dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
+		rdev->accel_working = false;
+	}
+
 	r = r300_startup(rdev);
 	if (r) {
 		/* Somethings want wront with the accel init stop accel */
diff --git a/drivers/gpu/drm/radeon/r420.c b/drivers/gpu/drm/radeon/r420.c
index 417fab81812f..666e28fe509c 100644
--- a/drivers/gpu/drm/radeon/r420.c
+++ b/drivers/gpu/drm/radeon/r420.c
@@ -199,6 +199,8 @@ static void r420_clock_resume(struct radeon_device *rdev)
 
 static void r420_cp_errata_init(struct radeon_device *rdev)
 {
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
+
 	/* RV410 and R420 can lock up if CP DMA to host memory happens
 	 * while the 2D engine is busy.
 	 *
@@ -206,22 +208,24 @@ static void r420_cp_errata_init(struct radeon_device *rdev)
 	 * of the CP init, apparently.
 	 */
 	radeon_scratch_get(rdev, &rdev->config.r300.resync_scratch);
-	radeon_ring_lock(rdev, 8);
-	radeon_ring_write(rdev, PACKET0(R300_CP_RESYNC_ADDR, 1));
-	radeon_ring_write(rdev, rdev->config.r300.resync_scratch);
-	radeon_ring_write(rdev, 0xDEADBEEF);
-	radeon_ring_unlock_commit(rdev);
+	radeon_ring_lock(rdev, ring, 8);
+	radeon_ring_write(ring, PACKET0(R300_CP_RESYNC_ADDR, 1));
+	radeon_ring_write(ring, rdev->config.r300.resync_scratch);
+	radeon_ring_write(ring, 0xDEADBEEF);
+	radeon_ring_unlock_commit(rdev, ring);
 }
 
 static void r420_cp_errata_fini(struct radeon_device *rdev)
 {
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
+
 	/* Catch the RESYNC we dispatched all the way back,
 	 * at the very beginning of the CP init.
 	 */
-	radeon_ring_lock(rdev, 8);
-	radeon_ring_write(rdev, PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0));
-	radeon_ring_write(rdev, R300_RB3D_DC_FINISH);
-	radeon_ring_unlock_commit(rdev);
+	radeon_ring_lock(rdev, ring, 8);
+	radeon_ring_write(ring, PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0));
+	radeon_ring_write(ring, R300_RB3D_DC_FINISH);
+	radeon_ring_unlock_commit(rdev, ring);
 	radeon_scratch_free(rdev, rdev->config.r300.resync_scratch);
 }
 
@@ -254,6 +258,12 @@ static int r420_startup(struct radeon_device *rdev)
 	if (r)
 		return r;
 
+	r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
+	if (r) {
+		dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
+		return r;
+	}
+
 	/* Enable IRQ */
 	r100_irq_set(rdev);
 	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
@@ -264,11 +274,18 @@ static int r420_startup(struct radeon_device *rdev)
 		return r;
 	}
 	r420_cp_errata_init(rdev);
-	r = r100_ib_init(rdev);
+
+	r = radeon_ib_pool_start(rdev);
+	if (r)
+		return r;
+
+	r = r100_ib_test(rdev);
 	if (r) {
-		dev_err(rdev->dev, "failed initializing IB (%d).\n", r);
+		dev_err(rdev->dev, "failed testing IB (%d).\n", r);
+		rdev->accel_working = false;
 		return r;
 	}
+
 	return 0;
 }
 
@@ -297,11 +314,14 @@ int r420_resume(struct radeon_device *rdev)
 	r420_clock_resume(rdev);
 	/* Initialize surface registers */
 	radeon_surface_init(rdev);
+
+	rdev->accel_working = true;
 	return r420_startup(rdev);
 }
 
 int r420_suspend(struct radeon_device *rdev)
 {
+	radeon_ib_pool_suspend(rdev);
 	r420_cp_errata_fini(rdev);
 	r100_cp_disable(rdev);
 	radeon_wb_disable(rdev);
@@ -414,7 +434,14 @@ int r420_init(struct radeon_device *rdev)
 			return r;
 	}
 	r420_set_reg_safe(rdev);
+
+	r = radeon_ib_pool_init(rdev);
 	rdev->accel_working = true;
+	if (r) {
+		dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
+		rdev->accel_working = false;
+	}
+
 	r = r420_startup(rdev);
 	if (r) {
 		/* Somethings want wront with the accel init stop accel */
diff --git a/drivers/gpu/drm/radeon/r500_reg.h b/drivers/gpu/drm/radeon/r500_reg.h
index fc437059918f..3bd8f1b1c606 100644
--- a/drivers/gpu/drm/radeon/r500_reg.h
+++ b/drivers/gpu/drm/radeon/r500_reg.h
@@ -573,6 +573,7 @@
 
 #define AVIVO_TMDSA_CNTL                    0x7880
 #   define AVIVO_TMDSA_CNTL_ENABLE               (1 << 0)
+#   define AVIVO_TMDSA_CNTL_HDMI_EN              (1 << 2)
 #   define AVIVO_TMDSA_CNTL_HPD_MASK             (1 << 4)
 #   define AVIVO_TMDSA_CNTL_HPD_SELECT           (1 << 8)
 #   define AVIVO_TMDSA_CNTL_SYNC_PHASE           (1 << 12)
@@ -633,6 +634,7 @@
 
 #define AVIVO_LVTMA_CNTL					0x7a80
 #   define AVIVO_LVTMA_CNTL_ENABLE               (1 << 0)
+#   define AVIVO_LVTMA_CNTL_HDMI_EN              (1 << 2)
 #   define AVIVO_LVTMA_CNTL_HPD_MASK             (1 << 4)
 #   define AVIVO_LVTMA_CNTL_HPD_SELECT           (1 << 8)
 #   define AVIVO_LVTMA_CNTL_SYNC_PHASE           (1 << 12)
diff --git a/drivers/gpu/drm/radeon/r520.c b/drivers/gpu/drm/radeon/r520.c
index 3081d07f8de5..4ae1615e752f 100644
--- a/drivers/gpu/drm/radeon/r520.c
+++ b/drivers/gpu/drm/radeon/r520.c
@@ -187,6 +187,12 @@ static int r520_startup(struct radeon_device *rdev)
 	if (r)
 		return r;
 
+	r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
+	if (r) {
+		dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
+		return r;
+	}
+
 	/* Enable IRQ */
 	rs600_irq_set(rdev);
 	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
@@ -196,9 +202,15 @@ static int r520_startup(struct radeon_device *rdev)
 		dev_err(rdev->dev, "failed initializing CP (%d).\n", r);
 		return r;
 	}
-	r = r100_ib_init(rdev);
+
+	r = radeon_ib_pool_start(rdev);
+	if (r)
+		return r;
+
+	r = r100_ib_test(rdev);
 	if (r) {
-		dev_err(rdev->dev, "failed initializing IB (%d).\n", r);
+		dev_err(rdev->dev, "failed testing IB (%d).\n", r);
+		rdev->accel_working = false;
 		return r;
 	}
 	return 0;
@@ -223,6 +235,8 @@ int r520_resume(struct radeon_device *rdev)
 	rv515_clock_startup(rdev);
 	/* Initialize surface registers */
 	radeon_surface_init(rdev);
+
+	rdev->accel_working = true;
 	return r520_startup(rdev);
 }
 
@@ -292,7 +306,14 @@ int r520_init(struct radeon_device *rdev)
 	if (r)
 		return r;
 	rv515_set_safe_registers(rdev);
+
+	r = radeon_ib_pool_init(rdev);
 	rdev->accel_working = true;
+	if (r) {
+		dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
+		rdev->accel_working = false;
+	}
+
 	r = r520_startup(rdev);
 	if (r) {
 		/* Somethings want wront with the accel init stop accel */
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index 9cdda0b3b081..4f08e5e6ee9d 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -1344,7 +1344,7 @@ int r600_gpu_soft_reset(struct radeon_device *rdev)
 	return 0;
 }
 
-bool r600_gpu_is_lockup(struct radeon_device *rdev)
+bool r600_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
 {
 	u32 srbm_status;
 	u32 grbm_status;
@@ -1361,19 +1361,19 @@ bool r600_gpu_is_lockup(struct radeon_device *rdev)
 	grbm_status = RREG32(R_008010_GRBM_STATUS);
 	grbm_status2 = RREG32(R_008014_GRBM_STATUS2);
 	if (!G_008010_GUI_ACTIVE(grbm_status)) {
-		r100_gpu_lockup_update(lockup, &rdev->cp);
+		r100_gpu_lockup_update(lockup, ring);
 		return false;
 	}
 	/* force CP activities */
-	r = radeon_ring_lock(rdev, 2);
+	r = radeon_ring_lock(rdev, ring, 2);
 	if (!r) {
 		/* PACKET2 NOP */
-		radeon_ring_write(rdev, 0x80000000);
-		radeon_ring_write(rdev, 0x80000000);
-		radeon_ring_unlock_commit(rdev);
+		radeon_ring_write(ring, 0x80000000);
+		radeon_ring_write(ring, 0x80000000);
+		radeon_ring_unlock_commit(rdev, ring);
 	}
-	rdev->cp.rptr = RREG32(R600_CP_RB_RPTR);
-	return r100_gpu_cp_is_lockup(rdev, lockup, &rdev->cp);
+	ring->rptr = RREG32(ring->rptr_reg);
+	return r100_gpu_cp_is_lockup(rdev, lockup, ring);
 }
 
 int r600_asic_reset(struct radeon_device *rdev)
@@ -2144,27 +2144,28 @@ static int r600_cp_load_microcode(struct radeon_device *rdev)
 
 int r600_cp_start(struct radeon_device *rdev)
 {
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 	int r;
 	uint32_t cp_me;
 
-	r = radeon_ring_lock(rdev, 7);
+	r = radeon_ring_lock(rdev, ring, 7);
 	if (r) {
 		DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r);
 		return r;
 	}
-	radeon_ring_write(rdev, PACKET3(PACKET3_ME_INITIALIZE, 5));
-	radeon_ring_write(rdev, 0x1);
+	radeon_ring_write(ring, PACKET3(PACKET3_ME_INITIALIZE, 5));
+	radeon_ring_write(ring, 0x1);
 	if (rdev->family >= CHIP_RV770) {
-		radeon_ring_write(rdev, 0x0);
-		radeon_ring_write(rdev, rdev->config.rv770.max_hw_contexts - 1);
+		radeon_ring_write(ring, 0x0);
+		radeon_ring_write(ring, rdev->config.rv770.max_hw_contexts - 1);
 	} else {
-		radeon_ring_write(rdev, 0x3);
-		radeon_ring_write(rdev, rdev->config.r600.max_hw_contexts - 1);
+		radeon_ring_write(ring, 0x3);
+		radeon_ring_write(ring, rdev->config.r600.max_hw_contexts - 1);
 	}
-	radeon_ring_write(rdev, PACKET3_ME_INITIALIZE_DEVICE_ID(1));
-	radeon_ring_write(rdev, 0);
-	radeon_ring_write(rdev, 0);
-	radeon_ring_unlock_commit(rdev);
+	radeon_ring_write(ring, PACKET3_ME_INITIALIZE_DEVICE_ID(1));
+	radeon_ring_write(ring, 0);
+	radeon_ring_write(ring, 0);
+	radeon_ring_unlock_commit(rdev, ring);
 
 	cp_me = 0xff;
 	WREG32(R_0086D8_CP_ME_CNTL, cp_me);
@@ -2173,6 +2174,7 @@ int r600_cp_start(struct radeon_device *rdev)
 
 int r600_cp_resume(struct radeon_device *rdev)
 {
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 	u32 tmp;
 	u32 rb_bufsz;
 	int r;
@@ -2184,13 +2186,13 @@ int r600_cp_resume(struct radeon_device *rdev)
 	WREG32(GRBM_SOFT_RESET, 0);
 
 	/* Set ring buffer size */
-	rb_bufsz = drm_order(rdev->cp.ring_size / 8);
+	rb_bufsz = drm_order(ring->ring_size / 8);
 	tmp = (drm_order(RADEON_GPU_PAGE_SIZE/8) << 8) | rb_bufsz;
 #ifdef __BIG_ENDIAN
 	tmp |= BUF_SWAP_32BIT;
 #endif
 	WREG32(CP_RB_CNTL, tmp);
-	WREG32(CP_SEM_WAIT_TIMER, 0x4);
+	WREG32(CP_SEM_WAIT_TIMER, 0x0);
 
 	/* Set the write pointer delay */
 	WREG32(CP_RB_WPTR_DELAY, 0);
@@ -2198,8 +2200,8 @@ int r600_cp_resume(struct radeon_device *rdev)
 	/* Initialize the ring buffer's read and write pointers */
 	WREG32(CP_RB_CNTL, tmp | RB_RPTR_WR_ENA);
 	WREG32(CP_RB_RPTR_WR, 0);
-	rdev->cp.wptr = 0;
-	WREG32(CP_RB_WPTR, rdev->cp.wptr);
+	ring->wptr = 0;
+	WREG32(CP_RB_WPTR, ring->wptr);
 
 	/* set the wb address whether it's enabled or not */
 	WREG32(CP_RB_RPTR_ADDR,
@@ -2217,42 +2219,36 @@ int r600_cp_resume(struct radeon_device *rdev)
 	mdelay(1);
 	WREG32(CP_RB_CNTL, tmp);
 
-	WREG32(CP_RB_BASE, rdev->cp.gpu_addr >> 8);
+	WREG32(CP_RB_BASE, ring->gpu_addr >> 8);
 	WREG32(CP_DEBUG, (1 << 27) | (1 << 28));
 
-	rdev->cp.rptr = RREG32(CP_RB_RPTR);
+	ring->rptr = RREG32(CP_RB_RPTR);
 
 	r600_cp_start(rdev);
-	rdev->cp.ready = true;
-	r = radeon_ring_test(rdev);
+	ring->ready = true;
+	r = radeon_ring_test(rdev, ring);
 	if (r) {
-		rdev->cp.ready = false;
+		ring->ready = false;
 		return r;
 	}
 	return 0;
 }
 
-void r600_cp_commit(struct radeon_device *rdev)
-{
-	WREG32(CP_RB_WPTR, rdev->cp.wptr);
-	(void)RREG32(CP_RB_WPTR);
-}
-
-void r600_ring_init(struct radeon_device *rdev, unsigned ring_size)
+void r600_ring_init(struct radeon_device *rdev, struct radeon_ring *ring, unsigned ring_size)
 {
 	u32 rb_bufsz;
 
 	/* Align ring size */
 	rb_bufsz = drm_order(ring_size / 8);
 	ring_size = (1 << (rb_bufsz + 1)) * 4;
-	rdev->cp.ring_size = ring_size;
-	rdev->cp.align_mask = 16 - 1;
+	ring->ring_size = ring_size;
+	ring->align_mask = 16 - 1;
 }
 
 void r600_cp_fini(struct radeon_device *rdev)
 {
 	r600_cp_stop(rdev);
-	radeon_ring_fini(rdev);
+	radeon_ring_fini(rdev, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX]);
 }
 
 
@@ -2271,11 +2267,11 @@ void r600_scratch_init(struct radeon_device *rdev)
 	}
 }
 
-int r600_ring_test(struct radeon_device *rdev)
+int r600_ring_test(struct radeon_device *rdev, struct radeon_ring *ring)
 {
 	uint32_t scratch;
 	uint32_t tmp = 0;
-	unsigned i;
+	unsigned i, ridx = radeon_ring_index(rdev, ring);
 	int r;
 
 	r = radeon_scratch_get(rdev, &scratch);
@@ -2284,16 +2280,16 @@ int r600_ring_test(struct radeon_device *rdev)
 		return r;
 	}
 	WREG32(scratch, 0xCAFEDEAD);
-	r = radeon_ring_lock(rdev, 3);
+	r = radeon_ring_lock(rdev, ring, 3);
 	if (r) {
-		DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r);
+		DRM_ERROR("radeon: cp failed to lock ring %d (%d).\n", ridx, r);
 		radeon_scratch_free(rdev, scratch);
 		return r;
 	}
-	radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONFIG_REG, 1));
-	radeon_ring_write(rdev, ((scratch - PACKET3_SET_CONFIG_REG_OFFSET) >> 2));
-	radeon_ring_write(rdev, 0xDEADBEEF);
-	radeon_ring_unlock_commit(rdev);
+	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
+	radeon_ring_write(ring, ((scratch - PACKET3_SET_CONFIG_REG_OFFSET) >> 2));
+	radeon_ring_write(ring, 0xDEADBEEF);
+	radeon_ring_unlock_commit(rdev, ring);
 	for (i = 0; i < rdev->usec_timeout; i++) {
 		tmp = RREG32(scratch);
 		if (tmp == 0xDEADBEEF)
@@ -2301,10 +2297,10 @@ int r600_ring_test(struct radeon_device *rdev)
 		DRM_UDELAY(1);
 	}
 	if (i < rdev->usec_timeout) {
-		DRM_INFO("ring test succeeded in %d usecs\n", i);
+		DRM_INFO("ring test on %d succeeded in %d usecs\n", ridx, i);
 	} else {
-		DRM_ERROR("radeon: ring test failed (scratch(0x%04X)=0x%08X)\n",
-			  scratch, tmp);
+		DRM_ERROR("radeon: ring %d test failed (scratch(0x%04X)=0x%08X)\n",
+			  ridx, scratch, tmp);
 		r = -EINVAL;
 	}
 	radeon_scratch_free(rdev, scratch);
@@ -2314,49 +2310,63 @@ int r600_ring_test(struct radeon_device *rdev)
 void r600_fence_ring_emit(struct radeon_device *rdev,
 			  struct radeon_fence *fence)
 {
+	struct radeon_ring *ring = &rdev->ring[fence->ring];
+
 	if (rdev->wb.use_event) {
-		u64 addr = rdev->wb.gpu_addr + R600_WB_EVENT_OFFSET +
-			(u64)(rdev->fence_drv.scratch_reg - rdev->scratch.reg_base);
+		u64 addr = rdev->fence_drv[fence->ring].gpu_addr;
 		/* flush read cache over gart */
-		radeon_ring_write(rdev, PACKET3(PACKET3_SURFACE_SYNC, 3));
-		radeon_ring_write(rdev, PACKET3_TC_ACTION_ENA |
+		radeon_ring_write(ring, PACKET3(PACKET3_SURFACE_SYNC, 3));
+		radeon_ring_write(ring, PACKET3_TC_ACTION_ENA |
 					PACKET3_VC_ACTION_ENA |
 					PACKET3_SH_ACTION_ENA);
-		radeon_ring_write(rdev, 0xFFFFFFFF);
-		radeon_ring_write(rdev, 0);
-		radeon_ring_write(rdev, 10); /* poll interval */
+		radeon_ring_write(ring, 0xFFFFFFFF);
+		radeon_ring_write(ring, 0);
+		radeon_ring_write(ring, 10); /* poll interval */
 		/* EVENT_WRITE_EOP - flush caches, send int */
-		radeon_ring_write(rdev, PACKET3(PACKET3_EVENT_WRITE_EOP, 4));
-		radeon_ring_write(rdev, EVENT_TYPE(CACHE_FLUSH_AND_INV_EVENT_TS) | EVENT_INDEX(5));
-		radeon_ring_write(rdev, addr & 0xffffffff);
-		radeon_ring_write(rdev, (upper_32_bits(addr) & 0xff) | DATA_SEL(1) | INT_SEL(2));
-		radeon_ring_write(rdev, fence->seq);
-		radeon_ring_write(rdev, 0);
+		radeon_ring_write(ring, PACKET3(PACKET3_EVENT_WRITE_EOP, 4));
+		radeon_ring_write(ring, EVENT_TYPE(CACHE_FLUSH_AND_INV_EVENT_TS) | EVENT_INDEX(5));
+		radeon_ring_write(ring, addr & 0xffffffff);
+		radeon_ring_write(ring, (upper_32_bits(addr) & 0xff) | DATA_SEL(1) | INT_SEL(2));
+		radeon_ring_write(ring, fence->seq);
+		radeon_ring_write(ring, 0);
 	} else {
 		/* flush read cache over gart */
-		radeon_ring_write(rdev, PACKET3(PACKET3_SURFACE_SYNC, 3));
-		radeon_ring_write(rdev, PACKET3_TC_ACTION_ENA |
+		radeon_ring_write(ring, PACKET3(PACKET3_SURFACE_SYNC, 3));
+		radeon_ring_write(ring, PACKET3_TC_ACTION_ENA |
 					PACKET3_VC_ACTION_ENA |
 					PACKET3_SH_ACTION_ENA);
-		radeon_ring_write(rdev, 0xFFFFFFFF);
-		radeon_ring_write(rdev, 0);
-		radeon_ring_write(rdev, 10); /* poll interval */
-		radeon_ring_write(rdev, PACKET3(PACKET3_EVENT_WRITE, 0));
-		radeon_ring_write(rdev, EVENT_TYPE(CACHE_FLUSH_AND_INV_EVENT) | EVENT_INDEX(0));
+		radeon_ring_write(ring, 0xFFFFFFFF);
+		radeon_ring_write(ring, 0);
+		radeon_ring_write(ring, 10); /* poll interval */
+		radeon_ring_write(ring, PACKET3(PACKET3_EVENT_WRITE, 0));
+		radeon_ring_write(ring, EVENT_TYPE(CACHE_FLUSH_AND_INV_EVENT) | EVENT_INDEX(0));
 		/* wait for 3D idle clean */
-		radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONFIG_REG, 1));
-		radeon_ring_write(rdev, (WAIT_UNTIL - PACKET3_SET_CONFIG_REG_OFFSET) >> 2);
-		radeon_ring_write(rdev, WAIT_3D_IDLE_bit | WAIT_3D_IDLECLEAN_bit);
+		radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
+		radeon_ring_write(ring, (WAIT_UNTIL - PACKET3_SET_CONFIG_REG_OFFSET) >> 2);
+		radeon_ring_write(ring, WAIT_3D_IDLE_bit | WAIT_3D_IDLECLEAN_bit);
 		/* Emit fence sequence & fire IRQ */
-		radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONFIG_REG, 1));
-		radeon_ring_write(rdev, ((rdev->fence_drv.scratch_reg - PACKET3_SET_CONFIG_REG_OFFSET) >> 2));
-		radeon_ring_write(rdev, fence->seq);
+		radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
+		radeon_ring_write(ring, ((rdev->fence_drv[fence->ring].scratch_reg - PACKET3_SET_CONFIG_REG_OFFSET) >> 2));
+		radeon_ring_write(ring, fence->seq);
 		/* CP_INTERRUPT packet 3 no longer exists, use packet 0 */
-		radeon_ring_write(rdev, PACKET0(CP_INT_STATUS, 0));
-		radeon_ring_write(rdev, RB_INT_STAT);
+		radeon_ring_write(ring, PACKET0(CP_INT_STATUS, 0));
+		radeon_ring_write(ring, RB_INT_STAT);
 	}
 }
 
+void r600_semaphore_ring_emit(struct radeon_device *rdev,
+			      struct radeon_ring *ring,
+			      struct radeon_semaphore *semaphore,
+			      bool emit_wait)
+{
+	uint64_t addr = semaphore->gpu_addr;
+	unsigned sel = emit_wait ? PACKET3_SEM_SEL_WAIT : PACKET3_SEM_SEL_SIGNAL;
+
+	radeon_ring_write(ring, PACKET3(PACKET3_MEM_SEMAPHORE, 1));
+	radeon_ring_write(ring, addr & 0xffffffff);
+	radeon_ring_write(ring, (upper_32_bits(addr) & 0xff) | sel);
+}
+
 int r600_copy_blit(struct radeon_device *rdev,
 		   uint64_t src_offset,
 		   uint64_t dst_offset,
@@ -2409,6 +2419,7 @@ void r600_clear_surface_reg(struct radeon_device *rdev, int reg)
 
 int r600_startup(struct radeon_device *rdev)
 {
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 	int r;
 
 	/* enable pcie gen2 link */
@@ -2447,6 +2458,12 @@ int r600_startup(struct radeon_device *rdev)
 	if (r)
 		return r;
 
+	r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
+	if (r) {
+		dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
+		return r;
+	}
+
 	/* Enable IRQ */
 	r = r600_irq_init(rdev);
 	if (r) {
@@ -2456,7 +2473,10 @@ int r600_startup(struct radeon_device *rdev)
 	}
 	r600_irq_set(rdev);
 
-	r = radeon_ring_init(rdev, rdev->cp.ring_size);
+	r = radeon_ring_init(rdev, ring, ring->ring_size, RADEON_WB_CP_RPTR_OFFSET,
+			     R600_CP_RB_RPTR, R600_CP_RB_WPTR,
+			     0, 0xfffff, RADEON_CP_PACKET2);
+
 	if (r)
 		return r;
 	r = r600_cp_load_microcode(rdev);
@@ -2466,6 +2486,17 @@ int r600_startup(struct radeon_device *rdev)
 	if (r)
 		return r;
 
+	r = radeon_ib_pool_start(rdev);
+	if (r)
+		return r;
+
+	r = r600_ib_test(rdev, RADEON_RING_TYPE_GFX_INDEX);
+	if (r) {
+		DRM_ERROR("radeon: failed testing IB (%d).\n", r);
+		rdev->accel_working = false;
+		return r;
+	}
+
 	return 0;
 }
 
@@ -2494,18 +2525,13 @@ int r600_resume(struct radeon_device *rdev)
 	/* post card */
 	atom_asic_init(rdev->mode_info.atom_context);
 
+	rdev->accel_working = true;
 	r = r600_startup(rdev);
 	if (r) {
 		DRM_ERROR("r600 startup failed on resume\n");
 		return r;
 	}
 
-	r = r600_ib_test(rdev);
-	if (r) {
-		DRM_ERROR("radeon: failed testing IB (%d).\n", r);
-		return r;
-	}
-
 	r = r600_audio_init(rdev);
 	if (r) {
 		DRM_ERROR("radeon: audio resume failed\n");
@@ -2518,13 +2544,14 @@ int r600_resume(struct radeon_device *rdev)
 int r600_suspend(struct radeon_device *rdev)
 {
 	r600_audio_fini(rdev);
+	radeon_ib_pool_suspend(rdev);
+	r600_blit_suspend(rdev);
 	/* FIXME: we should wait for ring to be empty */
 	r600_cp_stop(rdev);
-	rdev->cp.ready = false;
+	rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = false;
 	r600_irq_suspend(rdev);
 	radeon_wb_disable(rdev);
 	r600_pcie_gart_disable(rdev);
-	r600_blit_suspend(rdev);
 
 	return 0;
 }
@@ -2595,8 +2622,8 @@ int r600_init(struct radeon_device *rdev)
 	if (r)
 		return r;
 
-	rdev->cp.ring_obj = NULL;
-	r600_ring_init(rdev, 1024 * 1024);
+	rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ring_obj = NULL;
+	r600_ring_init(rdev, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX], 1024 * 1024);
 
 	rdev->ih.ring_obj = NULL;
 	r600_ih_ring_init(rdev, 64 * 1024);
@@ -2605,30 +2632,24 @@ int r600_init(struct radeon_device *rdev)
 	if (r)
 		return r;
 
+	r = radeon_ib_pool_init(rdev);
 	rdev->accel_working = true;
+	if (r) {
+		dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
+		rdev->accel_working = false;
+	}
+
 	r = r600_startup(rdev);
 	if (r) {
 		dev_err(rdev->dev, "disabling GPU acceleration\n");
 		r600_cp_fini(rdev);
 		r600_irq_fini(rdev);
 		radeon_wb_fini(rdev);
+		r100_ib_fini(rdev);
 		radeon_irq_kms_fini(rdev);
 		r600_pcie_gart_fini(rdev);
 		rdev->accel_working = false;
 	}
-	if (rdev->accel_working) {
-		r = radeon_ib_pool_init(rdev);
-		if (r) {
-			dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
-			rdev->accel_working = false;
-		} else {
-			r = r600_ib_test(rdev);
-			if (r) {
-				dev_err(rdev->dev, "IB test failed (%d).\n", r);
-				rdev->accel_working = false;
-			}
-		}
-	}
 
 	r = r600_audio_init(rdev);
 	if (r)
@@ -2643,12 +2664,13 @@ void r600_fini(struct radeon_device *rdev)
 	r600_cp_fini(rdev);
 	r600_irq_fini(rdev);
 	radeon_wb_fini(rdev);
-	radeon_ib_pool_fini(rdev);
+	r100_ib_fini(rdev);
 	radeon_irq_kms_fini(rdev);
 	r600_pcie_gart_fini(rdev);
 	r600_vram_scratch_fini(rdev);
 	radeon_agp_fini(rdev);
 	radeon_gem_fini(rdev);
+	radeon_semaphore_driver_fini(rdev);
 	radeon_fence_driver_fini(rdev);
 	radeon_bo_fini(rdev);
 	radeon_atombios_fini(rdev);
@@ -2662,18 +2684,20 @@ void r600_fini(struct radeon_device *rdev)
  */
 void r600_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib)
 {
+	struct radeon_ring *ring = &rdev->ring[ib->fence->ring];
+
 	/* FIXME: implement */
-	radeon_ring_write(rdev, PACKET3(PACKET3_INDIRECT_BUFFER, 2));
-	radeon_ring_write(rdev,
+	radeon_ring_write(ring, PACKET3(PACKET3_INDIRECT_BUFFER, 2));
+	radeon_ring_write(ring,
 #ifdef __BIG_ENDIAN
 			  (2 << 0) |
 #endif
 			  (ib->gpu_addr & 0xFFFFFFFC));
-	radeon_ring_write(rdev, upper_32_bits(ib->gpu_addr) & 0xFF);
-	radeon_ring_write(rdev, ib->length_dw);
+	radeon_ring_write(ring, upper_32_bits(ib->gpu_addr) & 0xFF);
+	radeon_ring_write(ring, ib->length_dw);
 }
 
-int r600_ib_test(struct radeon_device *rdev)
+int r600_ib_test(struct radeon_device *rdev, int ring)
 {
 	struct radeon_ib *ib;
 	uint32_t scratch;
@@ -2687,7 +2711,7 @@ int r600_ib_test(struct radeon_device *rdev)
 		return r;
 	}
 	WREG32(scratch, 0xCAFEDEAD);
-	r = radeon_ib_get(rdev, &ib);
+	r = radeon_ib_get(rdev, ring, &ib, 256);
 	if (r) {
 		DRM_ERROR("radeon: failed to get ib (%d).\n", r);
 		return r;
@@ -2728,7 +2752,7 @@ int r600_ib_test(struct radeon_device *rdev)
 		DRM_UDELAY(1);
 	}
 	if (i < rdev->usec_timeout) {
-		DRM_INFO("ib test succeeded in %u usecs\n", i);
+		DRM_INFO("ib test on ring %d succeeded in %u usecs\n", ib->fence->ring, i);
 	} else {
 		DRM_ERROR("radeon: ib test failed (scratch(0x%04X)=0x%08X)\n",
 			  scratch, tmp);
@@ -3075,7 +3099,7 @@ int r600_irq_set(struct radeon_device *rdev)
 		hpd3 = RREG32(DC_HOT_PLUG_DETECT3_INT_CONTROL) & ~DC_HPDx_INT_EN;
 	}
 
-	if (rdev->irq.sw_int) {
+	if (rdev->irq.sw_int[RADEON_RING_TYPE_GFX_INDEX]) {
 		DRM_DEBUG("r600_irq_set: sw int\n");
 		cp_int_cntl |= RB_INT_ENABLE;
 		cp_int_cntl |= TIME_STAMP_INT_ENABLE;
@@ -3459,11 +3483,11 @@ restart_ih:
 		case 177: /* CP_INT in IB1 */
 		case 178: /* CP_INT in IB2 */
 			DRM_DEBUG("IH: CP int: 0x%08x\n", src_data);
-			radeon_fence_process(rdev);
+			radeon_fence_process(rdev, RADEON_RING_TYPE_GFX_INDEX);
 			break;
 		case 181: /* CP EOP event */
 			DRM_DEBUG("IH: CP EOP\n");
-			radeon_fence_process(rdev);
+			radeon_fence_process(rdev, RADEON_RING_TYPE_GFX_INDEX);
 			break;
 		case 233: /* GUI IDLE */
 			DRM_DEBUG("IH: GUI idle\n");
@@ -3496,30 +3520,6 @@ restart_ih:
  */
 #if defined(CONFIG_DEBUG_FS)
 
-static int r600_debugfs_cp_ring_info(struct seq_file *m, void *data)
-{
-	struct drm_info_node *node = (struct drm_info_node *) m->private;
-	struct drm_device *dev = node->minor->dev;
-	struct radeon_device *rdev = dev->dev_private;
-	unsigned count, i, j;
-
-	radeon_ring_free_size(rdev);
-	count = (rdev->cp.ring_size / 4) - rdev->cp.ring_free_dw;
-	seq_printf(m, "CP_STAT 0x%08x\n", RREG32(CP_STAT));
-	seq_printf(m, "CP_RB_WPTR 0x%08x\n", RREG32(CP_RB_WPTR));
-	seq_printf(m, "CP_RB_RPTR 0x%08x\n", RREG32(CP_RB_RPTR));
-	seq_printf(m, "driver's copy of the CP_RB_WPTR 0x%08x\n", rdev->cp.wptr);
-	seq_printf(m, "driver's copy of the CP_RB_RPTR 0x%08x\n", rdev->cp.rptr);
-	seq_printf(m, "%u free dwords in ring\n", rdev->cp.ring_free_dw);
-	seq_printf(m, "%u dwords in ring\n", count);
-	i = rdev->cp.rptr;
-	for (j = 0; j <= count; j++) {
-		seq_printf(m, "r[%04d]=0x%08x\n", i, rdev->cp.ring[i]);
-		i = (i + 1) & rdev->cp.ptr_mask;
-	}
-	return 0;
-}
-
 static int r600_debugfs_mc_info(struct seq_file *m, void *data)
 {
 	struct drm_info_node *node = (struct drm_info_node *) m->private;
@@ -3533,7 +3533,6 @@ static int r600_debugfs_mc_info(struct seq_file *m, void *data)
 
 static struct drm_info_list r600_mc_info_list[] = {
 	{"r600_mc_info", r600_debugfs_mc_info, 0, NULL},
-	{"r600_ring_info", r600_debugfs_cp_ring_info, 0, NULL},
 };
 #endif
 
diff --git a/drivers/gpu/drm/radeon/r600_audio.c b/drivers/gpu/drm/radeon/r600_audio.c
index 846fae576399..ba66f3093d46 100644
--- a/drivers/gpu/drm/radeon/r600_audio.c
+++ b/drivers/gpu/drm/radeon/r600_audio.c
@@ -36,7 +36,7 @@
  */
 static int r600_audio_chipset_supported(struct radeon_device *rdev)
 {
-	return (rdev->family >= CHIP_R600 && rdev->family < CHIP_CEDAR)
+	return (rdev->family >= CHIP_R600 && !ASIC_IS_DCE5(rdev))
 		|| rdev->family == CHIP_RS600
 		|| rdev->family == CHIP_RS690
 		|| rdev->family == CHIP_RS740;
@@ -161,8 +161,18 @@ static void r600_audio_update_hdmi(unsigned long param)
  */
 static void r600_audio_engine_enable(struct radeon_device *rdev, bool enable)
 {
+	u32 value = 0;
 	DRM_INFO("%s audio support\n", enable ? "Enabling" : "Disabling");
-	WREG32_P(R600_AUDIO_ENABLE, enable ? 0x81000000 : 0x0, ~0x81000000);
+	if (ASIC_IS_DCE4(rdev)) {
+		if (enable) {
+			value |= 0x81000000; /* Required to enable audio */
+			value |= 0x0e1000f0; /* fglrx sets that too */
+		}
+		WREG32(EVERGREEN_AUDIO_ENABLE, value);
+	} else {
+		WREG32_P(R600_AUDIO_ENABLE,
+			 enable ? 0x81000000 : 0x0, ~0x81000000);
+	}
 	rdev->audio_enabled = enable;
 }
 
@@ -248,22 +258,33 @@ void r600_audio_set_clock(struct drm_encoder *encoder, int clock)
 		return;
 	}
 
-	switch (dig->dig_encoder) {
-	case 0:
-		WREG32(R600_AUDIO_PLL1_MUL, base_rate * 50);
-		WREG32(R600_AUDIO_PLL1_DIV, clock * 100);
-		WREG32(R600_AUDIO_CLK_SRCSEL, 0);
-		break;
-
-	case 1:
-		WREG32(R600_AUDIO_PLL2_MUL, base_rate * 50);
-		WREG32(R600_AUDIO_PLL2_DIV, clock * 100);
-		WREG32(R600_AUDIO_CLK_SRCSEL, 1);
-		break;
-	default:
-		dev_err(rdev->dev, "Unsupported DIG on encoder 0x%02X\n",
-			  radeon_encoder->encoder_id);
-		return;
+	if (ASIC_IS_DCE4(rdev)) {
+		/* TODO: other PLLs? */
+		WREG32(EVERGREEN_AUDIO_PLL1_MUL, base_rate * 10);
+		WREG32(EVERGREEN_AUDIO_PLL1_DIV, clock * 10);
+		WREG32(EVERGREEN_AUDIO_PLL1_UNK, 0x00000071);
+
+		/* Some magic trigger or src sel? */
+		WREG32_P(0x5ac, 0x01, ~0x77);
+	} else {
+		switch (dig->dig_encoder) {
+		case 0:
+			WREG32(R600_AUDIO_PLL1_MUL, base_rate * 50);
+			WREG32(R600_AUDIO_PLL1_DIV, clock * 100);
+			WREG32(R600_AUDIO_CLK_SRCSEL, 0);
+			break;
+
+		case 1:
+			WREG32(R600_AUDIO_PLL2_MUL, base_rate * 50);
+			WREG32(R600_AUDIO_PLL2_DIV, clock * 100);
+			WREG32(R600_AUDIO_CLK_SRCSEL, 1);
+			break;
+		default:
+			dev_err(rdev->dev,
+				"Unsupported DIG on encoder 0x%02X\n",
+				radeon_encoder->encoder_id);
+			return;
+		}
 	}
 }
 
diff --git a/drivers/gpu/drm/radeon/r600_blit_kms.c b/drivers/gpu/drm/radeon/r600_blit_kms.c
index e09d2818f949..d996f4381130 100644
--- a/drivers/gpu/drm/radeon/r600_blit_kms.c
+++ b/drivers/gpu/drm/radeon/r600_blit_kms.c
@@ -50,6 +50,7 @@ static void
 set_render_target(struct radeon_device *rdev, int format,
 		  int w, int h, u64 gpu_addr)
 {
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 	u32 cb_color_info;
 	int pitch, slice;
 
@@ -63,38 +64,38 @@ set_render_target(struct radeon_device *rdev, int format,
 	pitch = (w / 8) - 1;
 	slice = ((w * h) / 64) - 1;
 
-	radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
-	radeon_ring_write(rdev, (CB_COLOR0_BASE - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
-	radeon_ring_write(rdev, gpu_addr >> 8);
+	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
+	radeon_ring_write(ring, (CB_COLOR0_BASE - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
+	radeon_ring_write(ring, gpu_addr >> 8);
 
 	if (rdev->family > CHIP_R600 && rdev->family < CHIP_RV770) {
-		radeon_ring_write(rdev, PACKET3(PACKET3_SURFACE_BASE_UPDATE, 0));
-		radeon_ring_write(rdev, 2 << 0);
+		radeon_ring_write(ring, PACKET3(PACKET3_SURFACE_BASE_UPDATE, 0));
+		radeon_ring_write(ring, 2 << 0);
 	}
 
-	radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
-	radeon_ring_write(rdev, (CB_COLOR0_SIZE - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
-	radeon_ring_write(rdev, (pitch << 0) | (slice << 10));
+	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
+	radeon_ring_write(ring, (CB_COLOR0_SIZE - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
+	radeon_ring_write(ring, (pitch << 0) | (slice << 10));
 
-	radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
-	radeon_ring_write(rdev, (CB_COLOR0_VIEW - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
-	radeon_ring_write(rdev, 0);
+	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
+	radeon_ring_write(ring, (CB_COLOR0_VIEW - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
+	radeon_ring_write(ring, 0);
 
-	radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
-	radeon_ring_write(rdev, (CB_COLOR0_INFO - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
-	radeon_ring_write(rdev, cb_color_info);
+	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
+	radeon_ring_write(ring, (CB_COLOR0_INFO - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
+	radeon_ring_write(ring, cb_color_info);
 
-	radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
-	radeon_ring_write(rdev, (CB_COLOR0_TILE - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
-	radeon_ring_write(rdev, 0);
+	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
+	radeon_ring_write(ring, (CB_COLOR0_TILE - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
+	radeon_ring_write(ring, 0);
 
-	radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
-	radeon_ring_write(rdev, (CB_COLOR0_FRAG - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
-	radeon_ring_write(rdev, 0);
+	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
+	radeon_ring_write(ring, (CB_COLOR0_FRAG - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
+	radeon_ring_write(ring, 0);
 
-	radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
-	radeon_ring_write(rdev, (CB_COLOR0_MASK - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
-	radeon_ring_write(rdev, 0);
+	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
+	radeon_ring_write(ring, (CB_COLOR0_MASK - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
+	radeon_ring_write(ring, 0);
 }
 
 /* emits 5dw */
@@ -103,6 +104,7 @@ cp_set_surface_sync(struct radeon_device *rdev,
 		    u32 sync_type, u32 size,
 		    u64 mc_addr)
 {
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 	u32 cp_coher_size;
 
 	if (size == 0xffffffff)
@@ -110,17 +112,18 @@ cp_set_surface_sync(struct radeon_device *rdev,
 	else
 		cp_coher_size = ((size + 255) >> 8);
 
-	radeon_ring_write(rdev, PACKET3(PACKET3_SURFACE_SYNC, 3));
-	radeon_ring_write(rdev, sync_type);
-	radeon_ring_write(rdev, cp_coher_size);
-	radeon_ring_write(rdev, mc_addr >> 8);
-	radeon_ring_write(rdev, 10); /* poll interval */
+	radeon_ring_write(ring, PACKET3(PACKET3_SURFACE_SYNC, 3));
+	radeon_ring_write(ring, sync_type);
+	radeon_ring_write(ring, cp_coher_size);
+	radeon_ring_write(ring, mc_addr >> 8);
+	radeon_ring_write(ring, 10); /* poll interval */
 }
 
 /* emits 21dw + 1 surface sync = 26dw */
 static void
 set_shaders(struct radeon_device *rdev)
 {
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 	u64 gpu_addr;
 	u32 sq_pgm_resources;
 
@@ -129,35 +132,35 @@ set_shaders(struct radeon_device *rdev)
 
 	/* VS */
 	gpu_addr = rdev->r600_blit.shader_gpu_addr + rdev->r600_blit.vs_offset;
-	radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
-	radeon_ring_write(rdev, (SQ_PGM_START_VS - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
-	radeon_ring_write(rdev, gpu_addr >> 8);
+	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
+	radeon_ring_write(ring, (SQ_PGM_START_VS - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
+	radeon_ring_write(ring, gpu_addr >> 8);
 
-	radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
-	radeon_ring_write(rdev, (SQ_PGM_RESOURCES_VS - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
-	radeon_ring_write(rdev, sq_pgm_resources);
+	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
+	radeon_ring_write(ring, (SQ_PGM_RESOURCES_VS - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
+	radeon_ring_write(ring, sq_pgm_resources);
 
-	radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
-	radeon_ring_write(rdev, (SQ_PGM_CF_OFFSET_VS - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
-	radeon_ring_write(rdev, 0);
+	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
+	radeon_ring_write(ring, (SQ_PGM_CF_OFFSET_VS - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
+	radeon_ring_write(ring, 0);
 
 	/* PS */
 	gpu_addr = rdev->r600_blit.shader_gpu_addr + rdev->r600_blit.ps_offset;
-	radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
-	radeon_ring_write(rdev, (SQ_PGM_START_PS - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
-	radeon_ring_write(rdev, gpu_addr >> 8);
+	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
+	radeon_ring_write(ring, (SQ_PGM_START_PS - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
+	radeon_ring_write(ring, gpu_addr >> 8);
 
-	radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
-	radeon_ring_write(rdev, (SQ_PGM_RESOURCES_PS - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
-	radeon_ring_write(rdev, sq_pgm_resources | (1 << 28));
+	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
+	radeon_ring_write(ring, (SQ_PGM_RESOURCES_PS - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
+	radeon_ring_write(ring, sq_pgm_resources | (1 << 28));
 
-	radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
-	radeon_ring_write(rdev, (SQ_PGM_EXPORTS_PS - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
-	radeon_ring_write(rdev, 2);
+	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
+	radeon_ring_write(ring, (SQ_PGM_EXPORTS_PS - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
+	radeon_ring_write(ring, 2);
 
-	radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
-	radeon_ring_write(rdev, (SQ_PGM_CF_OFFSET_PS - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
-	radeon_ring_write(rdev, 0);
+	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONTEXT_REG, 1));
+	radeon_ring_write(ring, (SQ_PGM_CF_OFFSET_PS - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
+	radeon_ring_write(ring, 0);
 
 	gpu_addr = rdev->r600_blit.shader_gpu_addr + rdev->r600_blit.vs_offset;
 	cp_set_surface_sync(rdev, PACKET3_SH_ACTION_ENA, 512, gpu_addr);
@@ -167,6 +170,7 @@ set_shaders(struct radeon_device *rdev)
 static void
 set_vtx_resource(struct radeon_device *rdev, u64 gpu_addr)
 {
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 	u32 sq_vtx_constant_word2;
 
 	sq_vtx_constant_word2 = SQ_VTXC_BASE_ADDR_HI(upper_32_bits(gpu_addr) & 0xff) |
@@ -175,15 +179,15 @@ set_vtx_resource(struct radeon_device *rdev, u64 gpu_addr)
 	sq_vtx_constant_word2 |=  SQ_VTXC_ENDIAN_SWAP(SQ_ENDIAN_8IN32);
 #endif
 
-	radeon_ring_write(rdev, PACKET3(PACKET3_SET_RESOURCE, 7));
-	radeon_ring_write(rdev, 0x460);
-	radeon_ring_write(rdev, gpu_addr & 0xffffffff);
-	radeon_ring_write(rdev, 48 - 1);
-	radeon_ring_write(rdev, sq_vtx_constant_word2);
-	radeon_ring_write(rdev, 1 << 0);
-	radeon_ring_write(rdev, 0);
-	radeon_ring_write(rdev, 0);
-	radeon_ring_write(rdev, SQ_TEX_VTX_VALID_BUFFER << 30);
+	radeon_ring_write(ring, PACKET3(PACKET3_SET_RESOURCE, 7));
+	radeon_ring_write(ring, 0x460);
+	radeon_ring_write(ring, gpu_addr & 0xffffffff);
+	radeon_ring_write(ring, 48 - 1);
+	radeon_ring_write(ring, sq_vtx_constant_word2);
+	radeon_ring_write(ring, 1 << 0);
+	radeon_ring_write(ring, 0);
+	radeon_ring_write(ring, 0);
+	radeon_ring_write(ring, SQ_TEX_VTX_VALID_BUFFER << 30);
 
 	if ((rdev->family == CHIP_RV610) ||
 	    (rdev->family == CHIP_RV620) ||
@@ -203,6 +207,7 @@ set_tex_resource(struct radeon_device *rdev,
 		 int format, int w, int h, int pitch,
 		 u64 gpu_addr, u32 size)
 {
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 	uint32_t sq_tex_resource_word0, sq_tex_resource_word1, sq_tex_resource_word4;
 
 	if (h < 1)
@@ -225,15 +230,15 @@ set_tex_resource(struct radeon_device *rdev,
 	cp_set_surface_sync(rdev,
 			    PACKET3_TC_ACTION_ENA, size, gpu_addr);
 
-	radeon_ring_write(rdev, PACKET3(PACKET3_SET_RESOURCE, 7));
-	radeon_ring_write(rdev, 0);
-	radeon_ring_write(rdev, sq_tex_resource_word0);
-	radeon_ring_write(rdev, sq_tex_resource_word1);
-	radeon_ring_write(rdev, gpu_addr >> 8);
-	radeon_ring_write(rdev, gpu_addr >> 8);
-	radeon_ring_write(rdev, sq_tex_resource_word4);
-	radeon_ring_write(rdev, 0);
-	radeon_ring_write(rdev, SQ_TEX_VTX_VALID_TEXTURE << 30);
+	radeon_ring_write(ring, PACKET3(PACKET3_SET_RESOURCE, 7));
+	radeon_ring_write(ring, 0);
+	radeon_ring_write(ring, sq_tex_resource_word0);
+	radeon_ring_write(ring, sq_tex_resource_word1);
+	radeon_ring_write(ring, gpu_addr >> 8);
+	radeon_ring_write(ring, gpu_addr >> 8);
+	radeon_ring_write(ring, sq_tex_resource_word4);
+	radeon_ring_write(ring, 0);
+	radeon_ring_write(ring, SQ_TEX_VTX_VALID_TEXTURE << 30);
 }
 
 /* emits 12 */
@@ -241,43 +246,45 @@ static void
 set_scissors(struct radeon_device *rdev, int x1, int y1,
 	     int x2, int y2)
 {
-	radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 2));
-	radeon_ring_write(rdev, (PA_SC_SCREEN_SCISSOR_TL - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
-	radeon_ring_write(rdev, (x1 << 0) | (y1 << 16));
-	radeon_ring_write(rdev, (x2 << 0) | (y2 << 16));
-
-	radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 2));
-	radeon_ring_write(rdev, (PA_SC_GENERIC_SCISSOR_TL - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
-	radeon_ring_write(rdev, (x1 << 0) | (y1 << 16) | (1 << 31));
-	radeon_ring_write(rdev, (x2 << 0) | (y2 << 16));
-
-	radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONTEXT_REG, 2));
-	radeon_ring_write(rdev, (PA_SC_WINDOW_SCISSOR_TL - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
-	radeon_ring_write(rdev, (x1 << 0) | (y1 << 16) | (1 << 31));
-	radeon_ring_write(rdev, (x2 << 0) | (y2 << 16));
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
+	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONTEXT_REG, 2));
+	radeon_ring_write(ring, (PA_SC_SCREEN_SCISSOR_TL - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
+	radeon_ring_write(ring, (x1 << 0) | (y1 << 16));
+	radeon_ring_write(ring, (x2 << 0) | (y2 << 16));
+
+	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONTEXT_REG, 2));
+	radeon_ring_write(ring, (PA_SC_GENERIC_SCISSOR_TL - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
+	radeon_ring_write(ring, (x1 << 0) | (y1 << 16) | (1 << 31));
+	radeon_ring_write(ring, (x2 << 0) | (y2 << 16));
+
+	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONTEXT_REG, 2));
+	radeon_ring_write(ring, (PA_SC_WINDOW_SCISSOR_TL - PACKET3_SET_CONTEXT_REG_OFFSET) >> 2);
+	radeon_ring_write(ring, (x1 << 0) | (y1 << 16) | (1 << 31));
+	radeon_ring_write(ring, (x2 << 0) | (y2 << 16));
 }
 
 /* emits 10 */
 static void
 draw_auto(struct radeon_device *rdev)
 {
-	radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONFIG_REG, 1));
-	radeon_ring_write(rdev, (VGT_PRIMITIVE_TYPE - PACKET3_SET_CONFIG_REG_OFFSET) >> 2);
-	radeon_ring_write(rdev, DI_PT_RECTLIST);
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
+	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
+	radeon_ring_write(ring, (VGT_PRIMITIVE_TYPE - PACKET3_SET_CONFIG_REG_OFFSET) >> 2);
+	radeon_ring_write(ring, DI_PT_RECTLIST);
 
-	radeon_ring_write(rdev, PACKET3(PACKET3_INDEX_TYPE, 0));
-	radeon_ring_write(rdev,
+	radeon_ring_write(ring, PACKET3(PACKET3_INDEX_TYPE, 0));
+	radeon_ring_write(ring,
 #ifdef __BIG_ENDIAN
 			  (2 << 2) |
 #endif
 			  DI_INDEX_SIZE_16_BIT);
 
-	radeon_ring_write(rdev, PACKET3(PACKET3_NUM_INSTANCES, 0));
-	radeon_ring_write(rdev, 1);
+	radeon_ring_write(ring, PACKET3(PACKET3_NUM_INSTANCES, 0));
+	radeon_ring_write(ring, 1);
 
-	radeon_ring_write(rdev, PACKET3(PACKET3_DRAW_INDEX_AUTO, 1));
-	radeon_ring_write(rdev, 3);
-	radeon_ring_write(rdev, DI_SRC_SEL_AUTO_INDEX);
+	radeon_ring_write(ring, PACKET3(PACKET3_DRAW_INDEX_AUTO, 1));
+	radeon_ring_write(ring, 3);
+	radeon_ring_write(ring, DI_SRC_SEL_AUTO_INDEX);
 
 }
 
@@ -285,6 +292,7 @@ draw_auto(struct radeon_device *rdev)
 static void
 set_default_state(struct radeon_device *rdev)
 {
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 	u32 sq_config, sq_gpr_resource_mgmt_1, sq_gpr_resource_mgmt_2;
 	u32 sq_thread_resource_mgmt, sq_stack_resource_mgmt_1, sq_stack_resource_mgmt_2;
 	int num_ps_gprs, num_vs_gprs, num_temp_gprs, num_gs_gprs, num_es_gprs;
@@ -440,24 +448,24 @@ set_default_state(struct radeon_device *rdev)
 	/* emit an IB pointing at default state */
 	dwords = ALIGN(rdev->r600_blit.state_len, 0x10);
 	gpu_addr = rdev->r600_blit.shader_gpu_addr + rdev->r600_blit.state_offset;
-	radeon_ring_write(rdev, PACKET3(PACKET3_INDIRECT_BUFFER, 2));
-	radeon_ring_write(rdev,
+	radeon_ring_write(ring, PACKET3(PACKET3_INDIRECT_BUFFER, 2));
+	radeon_ring_write(ring,
 #ifdef __BIG_ENDIAN
 			  (2 << 0) |
 #endif
 			  (gpu_addr & 0xFFFFFFFC));
-	radeon_ring_write(rdev, upper_32_bits(gpu_addr) & 0xFF);
-	radeon_ring_write(rdev, dwords);
+	radeon_ring_write(ring, upper_32_bits(gpu_addr) & 0xFF);
+	radeon_ring_write(ring, dwords);
 
 	/* SQ config */
-	radeon_ring_write(rdev, PACKET3(PACKET3_SET_CONFIG_REG, 6));
-	radeon_ring_write(rdev, (SQ_CONFIG - PACKET3_SET_CONFIG_REG_OFFSET) >> 2);
-	radeon_ring_write(rdev, sq_config);
-	radeon_ring_write(rdev, sq_gpr_resource_mgmt_1);
-	radeon_ring_write(rdev, sq_gpr_resource_mgmt_2);
-	radeon_ring_write(rdev, sq_thread_resource_mgmt);
-	radeon_ring_write(rdev, sq_stack_resource_mgmt_1);
-	radeon_ring_write(rdev, sq_stack_resource_mgmt_2);
+	radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 6));
+	radeon_ring_write(ring, (SQ_CONFIG - PACKET3_SET_CONFIG_REG_OFFSET) >> 2);
+	radeon_ring_write(ring, sq_config);
+	radeon_ring_write(ring, sq_gpr_resource_mgmt_1);
+	radeon_ring_write(ring, sq_gpr_resource_mgmt_2);
+	radeon_ring_write(ring, sq_thread_resource_mgmt);
+	radeon_ring_write(ring, sq_stack_resource_mgmt_1);
+	radeon_ring_write(ring, sq_stack_resource_mgmt_2);
 }
 
 static uint32_t i2f(uint32_t input)
@@ -611,16 +619,17 @@ void r600_blit_fini(struct radeon_device *rdev)
 	radeon_bo_unref(&rdev->r600_blit.shader_obj);
 }
 
-static int r600_vb_ib_get(struct radeon_device *rdev)
+static int r600_vb_ib_get(struct radeon_device *rdev, unsigned size)
 {
 	int r;
-	r = radeon_ib_get(rdev, &rdev->r600_blit.vb_ib);
+	r = radeon_ib_get(rdev, RADEON_RING_TYPE_GFX_INDEX,
+			  &rdev->r600_blit.vb_ib, size);
 	if (r) {
 		DRM_ERROR("failed to get IB for vertex buffer\n");
 		return r;
 	}
 
-	rdev->r600_blit.vb_total = 64*1024;
+	rdev->r600_blit.vb_total = size;
 	rdev->r600_blit.vb_used = 0;
 	return 0;
 }
@@ -679,15 +688,12 @@ static unsigned r600_blit_create_rect(unsigned num_gpu_pages,
 
 int r600_blit_prepare_copy(struct radeon_device *rdev, unsigned num_gpu_pages)
 {
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 	int r;
 	int ring_size;
 	int num_loops = 0;
 	int dwords_per_loop = rdev->r600_blit.ring_size_per_loop;
 
-	r = r600_vb_ib_get(rdev);
-	if (r)
-		return r;
-
 	/* num loops */
 	while (num_gpu_pages) {
 		num_gpu_pages -=
@@ -696,10 +702,15 @@ int r600_blit_prepare_copy(struct radeon_device *rdev, unsigned num_gpu_pages)
 		num_loops++;
 	}
 
+	/* 48 bytes for vertex per loop */
+	r = r600_vb_ib_get(rdev, (num_loops*48)+256);
+	if (r)
+		return r;
+
 	/* calculate number of loops correctly */
 	ring_size = num_loops * dwords_per_loop;
 	ring_size += rdev->r600_blit.ring_size_common;
-	r = radeon_ring_lock(rdev, ring_size);
+	r = radeon_ring_lock(rdev, ring, ring_size);
 	if (r)
 		return r;
 
@@ -718,7 +729,7 @@ void r600_blit_done_copy(struct radeon_device *rdev, struct radeon_fence *fence)
 	if (fence)
 		r = radeon_fence_emit(rdev, fence);
 
-	radeon_ring_unlock_commit(rdev);
+	radeon_ring_unlock_commit(rdev, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX]);
 }
 
 void r600_kms_blit_copy(struct radeon_device *rdev,
diff --git a/drivers/gpu/drm/radeon/r600_cp.c b/drivers/gpu/drm/radeon/r600_cp.c
index c9db4931913f..84c546250955 100644
--- a/drivers/gpu/drm/radeon/r600_cp.c
+++ b/drivers/gpu/drm/radeon/r600_cp.c
@@ -1815,7 +1815,7 @@ static void r600_cp_init_ring_buffer(struct drm_device *dev,
 		     dev_priv->ring.size_l2qw);
 #endif
 
-	RADEON_WRITE(R600_CP_SEM_WAIT_TIMER, 0x4);
+	RADEON_WRITE(R600_CP_SEM_WAIT_TIMER, 0x0);
 
 	/* Set the write pointer delay */
 	RADEON_WRITE(R600_CP_RB_WPTR_DELAY, 0);
diff --git a/drivers/gpu/drm/radeon/r600_cs.c b/drivers/gpu/drm/radeon/r600_cs.c
index cb1acffd2430..38ce5d0427e3 100644
--- a/drivers/gpu/drm/radeon/r600_cs.c
+++ b/drivers/gpu/drm/radeon/r600_cs.c
@@ -941,7 +941,7 @@ static int r600_cs_check_reg(struct radeon_cs_parser *p, u32 reg, u32 idx)
 		track->db_depth_control = radeon_get_ib_value(p, idx);
 		break;
 	case R_028010_DB_DEPTH_INFO:
-		if (!p->keep_tiling_flags &&
+		if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS) &&
 		    r600_cs_packet_next_is_pkt3_nop(p)) {
 			r = r600_cs_packet_next_reloc(p, &reloc);
 			if (r) {
@@ -993,7 +993,7 @@ static int r600_cs_check_reg(struct radeon_cs_parser *p, u32 reg, u32 idx)
 	case R_0280B4_CB_COLOR5_INFO:
 	case R_0280B8_CB_COLOR6_INFO:
 	case R_0280BC_CB_COLOR7_INFO:
-		if (!p->keep_tiling_flags &&
+		if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS) &&
 		     r600_cs_packet_next_is_pkt3_nop(p)) {
 			r = r600_cs_packet_next_reloc(p, &reloc);
 			if (r) {
@@ -1293,7 +1293,7 @@ static int r600_check_texture_resource(struct radeon_cs_parser *p,  u32 idx,
 	mip_offset <<= 8;
 
 	word0 = radeon_get_ib_value(p, idx + 0);
-	if (!p->keep_tiling_flags) {
+	if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS)) {
 		if (tiling_flags & RADEON_TILING_MACRO)
 			word0 |= S_038000_TILE_MODE(V_038000_ARRAY_2D_TILED_THIN1);
 		else if (tiling_flags & RADEON_TILING_MICRO)
@@ -1625,7 +1625,7 @@ static int r600_packet3_check(struct radeon_cs_parser *p,
 					return -EINVAL;
 				}
 				base_offset = (u32)((reloc->lobj.gpu_offset >> 8) & 0xffffffff);
-				if (!p->keep_tiling_flags) {
+				if (!(p->cs_flags & RADEON_CS_KEEP_TILING_FLAGS)) {
 					if (reloc->lobj.tiling_flags & RADEON_TILING_MACRO)
 						ib[idx+1+(i*7)+0] |= S_038000_TILE_MODE(V_038000_ARRAY_2D_TILED_THIN1);
 					else if (reloc->lobj.tiling_flags & RADEON_TILING_MICRO)
diff --git a/drivers/gpu/drm/radeon/r600_hdmi.c b/drivers/gpu/drm/radeon/r600_hdmi.c
index f5ac7e788d81..0b5920671450 100644
--- a/drivers/gpu/drm/radeon/r600_hdmi.c
+++ b/drivers/gpu/drm/radeon/r600_hdmi.c
@@ -196,6 +196,13 @@ static void r600_hdmi_videoinfoframe(
 	frame[0xD] = (right_bar >> 8);
 
 	r600_hdmi_infoframe_checksum(0x82, 0x02, 0x0D, frame);
+	/* Our header values (type, version, length) should be alright, Intel
+	 * is using the same. Checksum function also seems to be OK, it works
+	 * fine for audio infoframe. However calculated value is always lower
+	 * by 2 in comparison to fglrx. It breaks displaying anything in case
+	 * of TVs that strictly check the checksum. Hack it manually here to
+	 * workaround this issue. */
+	frame[0x0] += 2;
 
 	WREG32(offset+R600_HDMI_VIDEOINFOFRAME_0,
 		frame[0x0] | (frame[0x1] << 8) | (frame[0x2] << 16) | (frame[0x3] << 24));
@@ -313,7 +320,7 @@ void r600_hdmi_setmode(struct drm_encoder *encoder, struct drm_display_mode *mod
 	struct radeon_device *rdev = dev->dev_private;
 	uint32_t offset = to_radeon_encoder(encoder)->hdmi_offset;
 
-	if (ASIC_IS_DCE4(rdev))
+	if (ASIC_IS_DCE5(rdev))
 		return;
 
 	if (!offset)
@@ -455,13 +462,31 @@ static void r600_hdmi_assign_block(struct drm_encoder *encoder)
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 	struct radeon_encoder_atom_dig *dig = radeon_encoder->enc_priv;
 
+	u16 eg_offsets[] = {
+		EVERGREEN_CRTC0_REGISTER_OFFSET,
+		EVERGREEN_CRTC1_REGISTER_OFFSET,
+		EVERGREEN_CRTC2_REGISTER_OFFSET,
+		EVERGREEN_CRTC3_REGISTER_OFFSET,
+		EVERGREEN_CRTC4_REGISTER_OFFSET,
+		EVERGREEN_CRTC5_REGISTER_OFFSET,
+	};
+
 	if (!dig) {
 		dev_err(rdev->dev, "Enabling HDMI on non-dig encoder\n");
 		return;
 	}
 
-	if (ASIC_IS_DCE4(rdev)) {
+	if (ASIC_IS_DCE5(rdev)) {
 		/* TODO */
+	} else if (ASIC_IS_DCE4(rdev)) {
+		if (dig->dig_encoder >= ARRAY_SIZE(eg_offsets)) {
+			dev_err(rdev->dev, "Enabling HDMI on unknown dig\n");
+			return;
+		}
+		radeon_encoder->hdmi_offset = EVERGREEN_HDMI_BASE +
+						eg_offsets[dig->dig_encoder];
+		radeon_encoder->hdmi_config_offset = radeon_encoder->hdmi_offset
+						+ EVERGREEN_HDMI_CONFIG_OFFSET;
 	} else if (ASIC_IS_DCE3(rdev)) {
 		radeon_encoder->hdmi_offset = dig->dig_encoder ?
 			R600_HDMI_BLOCK3 : R600_HDMI_BLOCK1;
@@ -484,7 +509,7 @@ void r600_hdmi_enable(struct drm_encoder *encoder)
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 	uint32_t offset;
 
-	if (ASIC_IS_DCE4(rdev))
+	if (ASIC_IS_DCE5(rdev))
 		return;
 
 	if (!radeon_encoder->hdmi_offset) {
@@ -497,16 +522,24 @@ void r600_hdmi_enable(struct drm_encoder *encoder)
 	}
 
 	offset = radeon_encoder->hdmi_offset;
-	if (ASIC_IS_DCE32(rdev) && !ASIC_IS_DCE4(rdev)) {
+	if (ASIC_IS_DCE5(rdev)) {
+		/* TODO */
+	} else if (ASIC_IS_DCE4(rdev)) {
+		WREG32_P(radeon_encoder->hdmi_config_offset + 0xc, 0x1, ~0x1);
+	} else if (ASIC_IS_DCE32(rdev)) {
 		WREG32_P(radeon_encoder->hdmi_config_offset + 0x4, 0x1, ~0x1);
-	} else if (rdev->family >= CHIP_R600 && !ASIC_IS_DCE3(rdev)) {
+	} else if (ASIC_IS_DCE3(rdev)) {
+		/* TODO */
+	} else if (rdev->family >= CHIP_R600) {
 		switch (radeon_encoder->encoder_id) {
 		case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1:
-			WREG32_P(AVIVO_TMDSA_CNTL, 0x4, ~0x4);
+			WREG32_P(AVIVO_TMDSA_CNTL, AVIVO_TMDSA_CNTL_HDMI_EN,
+				 ~AVIVO_TMDSA_CNTL_HDMI_EN);
 			WREG32(offset + R600_HDMI_ENABLE, 0x101);
 			break;
 		case ENCODER_OBJECT_ID_INTERNAL_LVTM1:
-			WREG32_P(AVIVO_LVTMA_CNTL, 0x4, ~0x4);
+			WREG32_P(AVIVO_LVTMA_CNTL, AVIVO_LVTMA_CNTL_HDMI_EN,
+				 ~AVIVO_LVTMA_CNTL_HDMI_EN);
 			WREG32(offset + R600_HDMI_ENABLE, 0x105);
 			break;
 		default:
@@ -518,8 +551,8 @@ void r600_hdmi_enable(struct drm_encoder *encoder)
 	if (rdev->irq.installed
 	    && rdev->family != CHIP_RS600
 	    && rdev->family != CHIP_RS690
-	    && rdev->family != CHIP_RS740) {
-
+	    && rdev->family != CHIP_RS740
+	    && !ASIC_IS_DCE4(rdev)) {
 		/* if irq is available use it */
 		rdev->irq.hdmi[offset == R600_HDMI_BLOCK1 ? 0 : 1] = true;
 		radeon_irq_set(rdev);
@@ -544,7 +577,7 @@ void r600_hdmi_disable(struct drm_encoder *encoder)
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 	uint32_t offset;
 
-	if (ASIC_IS_DCE4(rdev))
+	if (ASIC_IS_DCE5(rdev))
 		return;
 
 	offset = radeon_encoder->hdmi_offset;
@@ -563,16 +596,22 @@ void r600_hdmi_disable(struct drm_encoder *encoder)
 	/* disable polling */
 	r600_audio_disable_polling(encoder);
 
-	if (ASIC_IS_DCE32(rdev) && !ASIC_IS_DCE4(rdev)) {
+	if (ASIC_IS_DCE5(rdev)) {
+		/* TODO */
+	} else if (ASIC_IS_DCE4(rdev)) {
+		WREG32_P(radeon_encoder->hdmi_config_offset + 0xc, 0, ~0x1);
+	} else if (ASIC_IS_DCE32(rdev)) {
 		WREG32_P(radeon_encoder->hdmi_config_offset + 0x4, 0, ~0x1);
 	} else if (rdev->family >= CHIP_R600 && !ASIC_IS_DCE3(rdev)) {
 		switch (radeon_encoder->encoder_id) {
 		case ENCODER_OBJECT_ID_INTERNAL_KLDSCP_TMDS1:
-			WREG32_P(AVIVO_TMDSA_CNTL, 0, ~0x4);
+			WREG32_P(AVIVO_TMDSA_CNTL, 0,
+				 ~AVIVO_TMDSA_CNTL_HDMI_EN);
 			WREG32(offset + R600_HDMI_ENABLE, 0);
 			break;
 		case ENCODER_OBJECT_ID_INTERNAL_LVTM1:
-			WREG32_P(AVIVO_LVTMA_CNTL, 0, ~0x4);
+			WREG32_P(AVIVO_LVTMA_CNTL, 0,
+				 ~AVIVO_LVTMA_CNTL_HDMI_EN);
 			WREG32(offset + R600_HDMI_ENABLE, 0);
 			break;
 		default:
diff --git a/drivers/gpu/drm/radeon/r600d.h b/drivers/gpu/drm/radeon/r600d.h
index bfe1b5d92afe..3ee1fd7ef394 100644
--- a/drivers/gpu/drm/radeon/r600d.h
+++ b/drivers/gpu/drm/radeon/r600d.h
@@ -831,6 +831,8 @@
 #define	PACKET3_STRMOUT_BUFFER_UPDATE			0x34
 #define	PACKET3_INDIRECT_BUFFER_MP			0x38
 #define	PACKET3_MEM_SEMAPHORE				0x39
+#              define PACKET3_SEM_SEL_SIGNAL	    (0x6 << 29)
+#              define PACKET3_SEM_SEL_WAIT	    (0x7 << 29)
 #define	PACKET3_MPEG_INDEX				0x3A
 #define	PACKET3_WAIT_REG_MEM				0x3C
 #define	PACKET3_MEM_WRITE				0x3D
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index 8227e76b5c70..73e05cb85eca 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -107,6 +107,21 @@ extern int radeon_msi;
 #define RADEONFB_CONN_LIMIT		4
 #define RADEON_BIOS_NUM_SCRATCH		8
 
+/* max number of rings */
+#define RADEON_NUM_RINGS 3
+
+/* internal ring indices */
+/* r1xx+ has gfx CP ring */
+#define RADEON_RING_TYPE_GFX_INDEX  0
+
+/* cayman has 2 compute CP rings */
+#define CAYMAN_RING_TYPE_CP1_INDEX 1
+#define CAYMAN_RING_TYPE_CP2_INDEX 2
+
+/* hardcode those limit for now */
+#define RADEON_VA_RESERVED_SIZE		(8 << 20)
+#define RADEON_IB_VM_MAX_SIZE		(64 << 10)
+
 /*
  * Errata workarounds.
  */
@@ -192,14 +207,15 @@ extern int sumo_get_temp(struct radeon_device *rdev);
  */
 struct radeon_fence_driver {
 	uint32_t			scratch_reg;
+	uint64_t			gpu_addr;
+	volatile uint32_t		*cpu_addr;
 	atomic_t			seq;
 	uint32_t			last_seq;
 	unsigned long			last_jiffies;
 	unsigned long			last_timeout;
 	wait_queue_head_t		queue;
-	rwlock_t			lock;
 	struct list_head		created;
-	struct list_head		emited;
+	struct list_head		emitted;
 	struct list_head		signaled;
 	bool				initialized;
 };
@@ -210,21 +226,26 @@ struct radeon_fence {
 	struct list_head		list;
 	/* protected by radeon_fence.lock */
 	uint32_t			seq;
-	bool				emited;
+	bool				emitted;
 	bool				signaled;
+	/* RB, DMA, etc. */
+	int				ring;
+	struct radeon_semaphore		*semaphore;
 };
 
+int radeon_fence_driver_start_ring(struct radeon_device *rdev, int ring);
 int radeon_fence_driver_init(struct radeon_device *rdev);
 void radeon_fence_driver_fini(struct radeon_device *rdev);
-int radeon_fence_create(struct radeon_device *rdev, struct radeon_fence **fence);
+int radeon_fence_create(struct radeon_device *rdev, struct radeon_fence **fence, int ring);
 int radeon_fence_emit(struct radeon_device *rdev, struct radeon_fence *fence);
-void radeon_fence_process(struct radeon_device *rdev);
+void radeon_fence_process(struct radeon_device *rdev, int ring);
 bool radeon_fence_signaled(struct radeon_fence *fence);
 int radeon_fence_wait(struct radeon_fence *fence, bool interruptible);
-int radeon_fence_wait_next(struct radeon_device *rdev);
-int radeon_fence_wait_last(struct radeon_device *rdev);
+int radeon_fence_wait_next(struct radeon_device *rdev, int ring);
+int radeon_fence_wait_last(struct radeon_device *rdev, int ring);
 struct radeon_fence *radeon_fence_ref(struct radeon_fence *fence);
 void radeon_fence_unref(struct radeon_fence **fence);
+int radeon_fence_count_emitted(struct radeon_device *rdev, int ring);
 
 /*
  * Tiling registers
@@ -246,6 +267,21 @@ struct radeon_mman {
 	bool				initialized;
 };
 
+/* bo virtual address in a specific vm */
+struct radeon_bo_va {
+	/* bo list is protected by bo being reserved */
+	struct list_head		bo_list;
+	/* vm list is protected by vm mutex */
+	struct list_head		vm_list;
+	/* constant after initialization */
+	struct radeon_vm		*vm;
+	struct radeon_bo		*bo;
+	uint64_t			soffset;
+	uint64_t			eoffset;
+	uint32_t			flags;
+	bool				valid;
+};
+
 struct radeon_bo {
 	/* Protected by gem.mutex */
 	struct list_head		list;
@@ -259,6 +295,10 @@ struct radeon_bo {
 	u32				tiling_flags;
 	u32				pitch;
 	int				surface_reg;
+	/* list of all virtual address to which this bo
+	 * is associated to
+	 */
+	struct list_head		va;
 	/* Constant after initialization */
 	struct radeon_device		*rdev;
 	struct drm_gem_object		gem_base;
@@ -274,6 +314,48 @@ struct radeon_bo_list {
 	u32			tiling_flags;
 };
 
+/* sub-allocation manager, it has to be protected by another lock.
+ * By conception this is an helper for other part of the driver
+ * like the indirect buffer or semaphore, which both have their
+ * locking.
+ *
+ * Principe is simple, we keep a list of sub allocation in offset
+ * order (first entry has offset == 0, last entry has the highest
+ * offset).
+ *
+ * When allocating new object we first check if there is room at
+ * the end total_size - (last_object_offset + last_object_size) >=
+ * alloc_size. If so we allocate new object there.
+ *
+ * When there is not enough room at the end, we start waiting for
+ * each sub object until we reach object_offset+object_size >=
+ * alloc_size, this object then become the sub object we return.
+ *
+ * Alignment can't be bigger than page size.
+ *
+ * Hole are not considered for allocation to keep things simple.
+ * Assumption is that there won't be hole (all object on same
+ * alignment).
+ */
+struct radeon_sa_manager {
+	struct radeon_bo	*bo;
+	struct list_head	sa_bo;
+	unsigned		size;
+	uint64_t		gpu_addr;
+	void			*cpu_ptr;
+	uint32_t		domain;
+};
+
+struct radeon_sa_bo;
+
+/* sub-allocation buffer */
+struct radeon_sa_bo {
+	struct list_head		list;
+	struct radeon_sa_manager	*manager;
+	unsigned			offset;
+	unsigned			size;
+};
+
 /*
  * GEM objects.
  */
@@ -303,6 +385,46 @@ int radeon_mode_dumb_destroy(struct drm_file *file_priv,
 			     uint32_t handle);
 
 /*
+ * Semaphores.
+ */
+struct radeon_ring;
+
+#define	RADEON_SEMAPHORE_BO_SIZE	256
+
+struct radeon_semaphore_driver {
+	rwlock_t			lock;
+	struct list_head		bo;
+};
+
+struct radeon_semaphore_bo;
+
+/* everything here is constant */
+struct radeon_semaphore {
+	struct list_head		list;
+	uint64_t			gpu_addr;
+	uint32_t			*cpu_ptr;
+	struct radeon_semaphore_bo	*bo;
+};
+
+struct radeon_semaphore_bo {
+	struct list_head		list;
+	struct radeon_ib		*ib;
+	struct list_head		free;
+	struct radeon_semaphore		semaphores[RADEON_SEMAPHORE_BO_SIZE/8];
+	unsigned			nused;
+};
+
+void radeon_semaphore_driver_fini(struct radeon_device *rdev);
+int radeon_semaphore_create(struct radeon_device *rdev,
+			    struct radeon_semaphore **semaphore);
+void radeon_semaphore_emit_signal(struct radeon_device *rdev, int ring,
+				  struct radeon_semaphore *semaphore);
+void radeon_semaphore_emit_wait(struct radeon_device *rdev, int ring,
+				struct radeon_semaphore *semaphore);
+void radeon_semaphore_free(struct radeon_device *rdev,
+			   struct radeon_semaphore *semaphore);
+
+/*
  * GART structures, functions & helpers
  */
 struct radeon_mc;
@@ -310,6 +432,7 @@ struct radeon_mc;
 #define RADEON_GPU_PAGE_SIZE 4096
 #define RADEON_GPU_PAGE_MASK (RADEON_GPU_PAGE_SIZE - 1)
 #define RADEON_GPU_PAGE_SHIFT 12
+#define RADEON_GPU_PAGE_ALIGN(a) (((a) + RADEON_GPU_PAGE_MASK) & ~RADEON_GPU_PAGE_MASK)
 
 struct radeon_gart {
 	dma_addr_t			table_addr;
@@ -320,7 +443,6 @@ struct radeon_gart {
 	unsigned			table_size;
 	struct page			**pages;
 	dma_addr_t			*pages_addr;
-	bool				*ttm_alloced;
 	bool				ready;
 };
 
@@ -434,7 +556,7 @@ union radeon_irq_stat_regs {
 
 struct radeon_irq {
 	bool		installed;
-	bool		sw_int;
+	bool		sw_int[RADEON_NUM_RINGS];
 	bool		crtc_vblank_int[RADEON_MAX_CRTCS];
 	bool		pflip[RADEON_MAX_CRTCS];
 	wait_queue_head_t	vblank_queue;
@@ -444,7 +566,7 @@ struct radeon_irq {
 	wait_queue_head_t	idle_queue;
 	bool		hdmi[RADEON_MAX_HDMI_BLOCKS];
 	spinlock_t sw_lock;
-	int sw_refcount;
+	int sw_refcount[RADEON_NUM_RINGS];
 	union radeon_irq_stat_regs stat_regs;
 	spinlock_t pflip_lock[RADEON_MAX_CRTCS];
 	int pflip_refcount[RADEON_MAX_CRTCS];
@@ -452,22 +574,23 @@ struct radeon_irq {
 
 int radeon_irq_kms_init(struct radeon_device *rdev);
 void radeon_irq_kms_fini(struct radeon_device *rdev);
-void radeon_irq_kms_sw_irq_get(struct radeon_device *rdev);
-void radeon_irq_kms_sw_irq_put(struct radeon_device *rdev);
+void radeon_irq_kms_sw_irq_get(struct radeon_device *rdev, int ring);
+void radeon_irq_kms_sw_irq_put(struct radeon_device *rdev, int ring);
 void radeon_irq_kms_pflip_irq_get(struct radeon_device *rdev, int crtc);
 void radeon_irq_kms_pflip_irq_put(struct radeon_device *rdev, int crtc);
 
 /*
- * CP & ring.
+ * CP & rings.
  */
+
 struct radeon_ib {
-	struct list_head	list;
+	struct radeon_sa_bo	sa_bo;
 	unsigned		idx;
+	uint32_t		length_dw;
 	uint64_t		gpu_addr;
-	struct radeon_fence	*fence;
 	uint32_t		*ptr;
-	uint32_t		length_dw;
-	bool			free;
+	struct radeon_fence	*fence;
+	unsigned		vm_id;
 };
 
 /*
@@ -475,20 +598,22 @@ struct radeon_ib {
  * mutex protects scheduled_ibs, ready, alloc_bm
  */
 struct radeon_ib_pool {
-	struct mutex		mutex;
-	struct radeon_bo	*robj;
-	struct list_head	bogus_ib;
-	struct radeon_ib	ibs[RADEON_IB_POOL_SIZE];
-	bool			ready;
-	unsigned		head_id;
+	struct mutex			mutex;
+	struct radeon_sa_manager	sa_manager;
+	struct radeon_ib		ibs[RADEON_IB_POOL_SIZE];
+	bool				ready;
+	unsigned			head_id;
 };
 
-struct radeon_cp {
+struct radeon_ring {
 	struct radeon_bo	*ring_obj;
 	volatile uint32_t	*ring;
 	unsigned		rptr;
+	unsigned		rptr_offs;
+	unsigned		rptr_reg;
 	unsigned		wptr;
 	unsigned		wptr_old;
+	unsigned		wptr_reg;
 	unsigned		ring_size;
 	unsigned		ring_free_dw;
 	int			count_dw;
@@ -497,6 +622,61 @@ struct radeon_cp {
 	uint32_t		ptr_mask;
 	struct mutex		mutex;
 	bool			ready;
+	u32			ptr_reg_shift;
+	u32			ptr_reg_mask;
+	u32			nop;
+};
+
+/*
+ * VM
+ */
+struct radeon_vm {
+	struct list_head		list;
+	struct list_head		va;
+	int				id;
+	unsigned			last_pfn;
+	u64				pt_gpu_addr;
+	u64				*pt;
+	struct radeon_sa_bo		sa_bo;
+	struct mutex			mutex;
+	/* last fence for cs using this vm */
+	struct radeon_fence		*fence;
+};
+
+struct radeon_vm_funcs {
+	int (*init)(struct radeon_device *rdev);
+	void (*fini)(struct radeon_device *rdev);
+	/* cs mutex must be lock for schedule_ib */
+	int (*bind)(struct radeon_device *rdev, struct radeon_vm *vm, int id);
+	void (*unbind)(struct radeon_device *rdev, struct radeon_vm *vm);
+	void (*tlb_flush)(struct radeon_device *rdev, struct radeon_vm *vm);
+	uint32_t (*page_flags)(struct radeon_device *rdev,
+			       struct radeon_vm *vm,
+			       uint32_t flags);
+	void (*set_page)(struct radeon_device *rdev, struct radeon_vm *vm,
+			unsigned pfn, uint64_t addr, uint32_t flags);
+};
+
+struct radeon_vm_manager {
+	struct list_head		lru_vm;
+	uint32_t			use_bitmap;
+	struct radeon_sa_manager	sa_manager;
+	uint32_t			max_pfn;
+	/* fields constant after init */
+	const struct radeon_vm_funcs	*funcs;
+	/* number of VMIDs */
+	unsigned			nvm;
+	/* vram base address for page table entry  */
+	u64				vram_base_offset;
+	/* is vm enabled? */
+	bool				enabled;
+};
+
+/*
+ * file private structure
+ */
+struct radeon_fpriv {
+	struct radeon_vm		vm;
 };
 
 /*
@@ -506,6 +686,7 @@ struct r600_ih {
 	struct radeon_bo	*ring_obj;
 	volatile uint32_t	*ring;
 	unsigned		rptr;
+	unsigned		rptr_offs;
 	unsigned		wptr;
 	unsigned		wptr_old;
 	unsigned		ring_size;
@@ -549,23 +730,29 @@ struct r600_blit {
 
 void r600_blit_suspend(struct radeon_device *rdev);
 
-int radeon_ib_get(struct radeon_device *rdev, struct radeon_ib **ib);
+int radeon_ib_get(struct radeon_device *rdev, int ring,
+		  struct radeon_ib **ib, unsigned size);
 void radeon_ib_free(struct radeon_device *rdev, struct radeon_ib **ib);
+bool radeon_ib_try_free(struct radeon_device *rdev, struct radeon_ib *ib);
 int radeon_ib_schedule(struct radeon_device *rdev, struct radeon_ib *ib);
 int radeon_ib_pool_init(struct radeon_device *rdev);
 void radeon_ib_pool_fini(struct radeon_device *rdev);
+int radeon_ib_pool_start(struct radeon_device *rdev);
+int radeon_ib_pool_suspend(struct radeon_device *rdev);
 int radeon_ib_test(struct radeon_device *rdev);
-extern void radeon_ib_bogus_add(struct radeon_device *rdev, struct radeon_ib *ib);
 /* Ring access between begin & end cannot sleep */
-void radeon_ring_free_size(struct radeon_device *rdev);
-int radeon_ring_alloc(struct radeon_device *rdev, unsigned ndw);
-int radeon_ring_lock(struct radeon_device *rdev, unsigned ndw);
-void radeon_ring_commit(struct radeon_device *rdev);
-void radeon_ring_unlock_commit(struct radeon_device *rdev);
-void radeon_ring_unlock_undo(struct radeon_device *rdev);
-int radeon_ring_test(struct radeon_device *rdev);
-int radeon_ring_init(struct radeon_device *rdev, unsigned ring_size);
-void radeon_ring_fini(struct radeon_device *rdev);
+int radeon_ring_index(struct radeon_device *rdev, struct radeon_ring *cp);
+void radeon_ring_free_size(struct radeon_device *rdev, struct radeon_ring *cp);
+int radeon_ring_alloc(struct radeon_device *rdev, struct radeon_ring *cp, unsigned ndw);
+int radeon_ring_lock(struct radeon_device *rdev, struct radeon_ring *cp, unsigned ndw);
+void radeon_ring_commit(struct radeon_device *rdev, struct radeon_ring *cp);
+void radeon_ring_unlock_commit(struct radeon_device *rdev, struct radeon_ring *cp);
+void radeon_ring_unlock_undo(struct radeon_device *rdev, struct radeon_ring *cp);
+int radeon_ring_test(struct radeon_device *rdev, struct radeon_ring *cp);
+int radeon_ring_init(struct radeon_device *rdev, struct radeon_ring *cp, unsigned ring_size,
+		     unsigned rptr_offs, unsigned rptr_reg, unsigned wptr_reg,
+		     u32 ptr_reg_shift, u32 ptr_reg_mask, u32 nop);
+void radeon_ring_fini(struct radeon_device *rdev, struct radeon_ring *cp);
 
 
 /*
@@ -582,12 +769,12 @@ struct radeon_cs_reloc {
 struct radeon_cs_chunk {
 	uint32_t		chunk_id;
 	uint32_t		length_dw;
-	int kpage_idx[2];
-	uint32_t                *kpage[2];
+	int			kpage_idx[2];
+	uint32_t		*kpage[2];
 	uint32_t		*kdata;
-	void __user *user_ptr;
-	int last_copied_page;
-	int last_page_index;
+	void __user		*user_ptr;
+	int			last_copied_page;
+	int			last_page_index;
 };
 
 struct radeon_cs_parser {
@@ -605,14 +792,18 @@ struct radeon_cs_parser {
 	struct radeon_cs_reloc	*relocs;
 	struct radeon_cs_reloc	**relocs_ptr;
 	struct list_head	validated;
+	bool			sync_to_ring[RADEON_NUM_RINGS];
 	/* indices of various chunks */
 	int			chunk_ib_idx;
 	int			chunk_relocs_idx;
+	int			chunk_flags_idx;
 	struct radeon_ib	*ib;
 	void			*track;
 	unsigned		family;
 	int			parser_error;
-	bool			keep_tiling_flags;
+	u32			cs_flags;
+	u32			ring;
+	s32			priority;
 };
 
 extern int radeon_cs_update_pages(struct radeon_cs_parser *p, int pg_idx);
@@ -869,11 +1060,20 @@ void radeon_benchmark(struct radeon_device *rdev, int test_number);
  * Testing
  */
 void radeon_test_moves(struct radeon_device *rdev);
+void radeon_test_ring_sync(struct radeon_device *rdev,
+			   struct radeon_ring *cpA,
+			   struct radeon_ring *cpB);
+void radeon_test_syncing(struct radeon_device *rdev);
 
 
 /*
  * Debugfs
  */
+struct radeon_debugfs {
+	struct drm_info_list	*files;
+	unsigned		num_files;
+};
+
 int radeon_debugfs_add_files(struct radeon_device *rdev,
 			     struct drm_info_list *files,
 			     unsigned nfiles);
@@ -889,21 +1089,27 @@ struct radeon_asic {
 	int (*resume)(struct radeon_device *rdev);
 	int (*suspend)(struct radeon_device *rdev);
 	void (*vga_set_state)(struct radeon_device *rdev, bool state);
-	bool (*gpu_is_lockup)(struct radeon_device *rdev);
+	bool (*gpu_is_lockup)(struct radeon_device *rdev, struct radeon_ring *cp);
 	int (*asic_reset)(struct radeon_device *rdev);
 	void (*gart_tlb_flush)(struct radeon_device *rdev);
 	int (*gart_set_page)(struct radeon_device *rdev, int i, uint64_t addr);
 	int (*cp_init)(struct radeon_device *rdev, unsigned ring_size);
 	void (*cp_fini)(struct radeon_device *rdev);
 	void (*cp_disable)(struct radeon_device *rdev);
-	void (*cp_commit)(struct radeon_device *rdev);
 	void (*ring_start)(struct radeon_device *rdev);
-	int (*ring_test)(struct radeon_device *rdev);
-	void (*ring_ib_execute)(struct radeon_device *rdev, struct radeon_ib *ib);
+
+	struct {
+		void (*ib_execute)(struct radeon_device *rdev, struct radeon_ib *ib);
+		int (*ib_parse)(struct radeon_device *rdev, struct radeon_ib *ib);
+		void (*emit_fence)(struct radeon_device *rdev, struct radeon_fence *fence);
+		void (*emit_semaphore)(struct radeon_device *rdev, struct radeon_ring *cp,
+				       struct radeon_semaphore *semaphore, bool emit_wait);
+	} ring[RADEON_NUM_RINGS];
+
+	int (*ring_test)(struct radeon_device *rdev, struct radeon_ring *cp);
 	int (*irq_set)(struct radeon_device *rdev);
 	int (*irq_process)(struct radeon_device *rdev);
 	u32 (*get_vblank_counter)(struct radeon_device *rdev, int crtc);
-	void (*fence_ring_emit)(struct radeon_device *rdev, struct radeon_fence *fence);
 	int (*cs_parse)(struct radeon_cs_parser *p);
 	int (*copy_blit)(struct radeon_device *rdev,
 			 uint64_t src_offset,
@@ -1132,6 +1338,8 @@ int radeon_gem_busy_ioctl(struct drm_device *dev, void *data,
 			  struct drm_file *filp);
 int radeon_gem_wait_idle_ioctl(struct drm_device *dev, void *data,
 			      struct drm_file *filp);
+int radeon_gem_va_ioctl(struct drm_device *dev, void *data,
+			  struct drm_file *filp);
 int radeon_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp);
 int radeon_gem_set_tiling_ioctl(struct drm_device *dev, void *data,
 				struct drm_file *filp);
@@ -1231,11 +1439,10 @@ struct radeon_device {
 	struct radeon_mode_info		mode_info;
 	struct radeon_scratch		scratch;
 	struct radeon_mman		mman;
-	struct radeon_fence_driver	fence_drv;
-	struct radeon_cp		cp;
-	/* cayman compute rings */
-	struct radeon_cp		cp1;
-	struct radeon_cp		cp2;
+	rwlock_t			fence_lock;
+	struct radeon_fence_driver	fence_drv[RADEON_NUM_RINGS];
+	struct radeon_semaphore_driver	semaphore_drv;
+	struct radeon_ring		ring[RADEON_NUM_RINGS];
 	struct radeon_ib_pool		ib_pool;
 	struct radeon_irq		irq;
 	struct radeon_asic		*asic;
@@ -1279,6 +1486,13 @@ struct radeon_device {
 	struct drm_file *cmask_filp;
 	/* i2c buses */
 	struct radeon_i2c_chan *i2c_bus[RADEON_MAX_I2C_BUS];
+	/* debugfs */
+	struct radeon_debugfs	debugfs[RADEON_DEBUGFS_MAX_COMPONENTS];
+	unsigned 		debugfs_count;
+	/* virtual memory */
+	struct radeon_vm_manager	vm_manager;
+	/* ring used for bo copies */
+	u32				copy_ring;
 };
 
 int radeon_device_init(struct radeon_device *rdev,
@@ -1414,18 +1628,17 @@ void radeon_atombios_fini(struct radeon_device *rdev);
 /*
  * RING helpers.
  */
-
 #if DRM_DEBUG_CODE == 0
-static inline void radeon_ring_write(struct radeon_device *rdev, uint32_t v)
+static inline void radeon_ring_write(struct radeon_ring *ring, uint32_t v)
 {
-	rdev->cp.ring[rdev->cp.wptr++] = v;
-	rdev->cp.wptr &= rdev->cp.ptr_mask;
-	rdev->cp.count_dw--;
-	rdev->cp.ring_free_dw--;
+	ring->ring[ring->wptr++] = v;
+	ring->wptr &= ring->ptr_mask;
+	ring->count_dw--;
+	ring->ring_free_dw--;
 }
 #else
 /* With debugging this is just too big to inline */
-void radeon_ring_write(struct radeon_device *rdev, uint32_t v);
+void radeon_ring_write(struct radeon_ring *ring, uint32_t v);
 #endif
 
 /*
@@ -1437,18 +1650,19 @@ void radeon_ring_write(struct radeon_device *rdev, uint32_t v);
 #define radeon_suspend(rdev) (rdev)->asic->suspend((rdev))
 #define radeon_cs_parse(p) rdev->asic->cs_parse((p))
 #define radeon_vga_set_state(rdev, state) (rdev)->asic->vga_set_state((rdev), (state))
-#define radeon_gpu_is_lockup(rdev) (rdev)->asic->gpu_is_lockup((rdev))
+#define radeon_gpu_is_lockup(rdev, cp) (rdev)->asic->gpu_is_lockup((rdev), (cp))
 #define radeon_asic_reset(rdev) (rdev)->asic->asic_reset((rdev))
 #define radeon_gart_tlb_flush(rdev) (rdev)->asic->gart_tlb_flush((rdev))
 #define radeon_gart_set_page(rdev, i, p) (rdev)->asic->gart_set_page((rdev), (i), (p))
-#define radeon_cp_commit(rdev) (rdev)->asic->cp_commit((rdev))
 #define radeon_ring_start(rdev) (rdev)->asic->ring_start((rdev))
-#define radeon_ring_test(rdev) (rdev)->asic->ring_test((rdev))
-#define radeon_ring_ib_execute(rdev, ib) (rdev)->asic->ring_ib_execute((rdev), (ib))
+#define radeon_ring_test(rdev, cp) (rdev)->asic->ring_test((rdev), (cp))
+#define radeon_ring_ib_execute(rdev, r, ib) (rdev)->asic->ring[(r)].ib_execute((rdev), (ib))
+#define radeon_ring_ib_parse(rdev, r, ib) (rdev)->asic->ring[(r)].ib_parse((rdev), (ib))
 #define radeon_irq_set(rdev) (rdev)->asic->irq_set((rdev))
 #define radeon_irq_process(rdev) (rdev)->asic->irq_process((rdev))
 #define radeon_get_vblank_counter(rdev, crtc) (rdev)->asic->get_vblank_counter((rdev), (crtc))
-#define radeon_fence_ring_emit(rdev, fence) (rdev)->asic->fence_ring_emit((rdev), (fence))
+#define radeon_fence_ring_emit(rdev, r, fence) (rdev)->asic->ring[(r)].emit_fence((rdev), (fence))
+#define radeon_semaphore_ring_emit(rdev, r, cp, semaphore, emit_wait) (rdev)->asic->ring[(r)].emit_semaphore((rdev), (cp), (semaphore), (emit_wait))
 #define radeon_copy_blit(rdev, s, d, np, f) (rdev)->asic->copy_blit((rdev), (s), (d), (np), (f))
 #define radeon_copy_dma(rdev, s, d, np, f) (rdev)->asic->copy_dma((rdev), (s), (d), (np), (f))
 #define radeon_copy(rdev, s, d, np, f) (rdev)->asic->copy((rdev), (s), (d), (np), (f))
@@ -1503,6 +1717,33 @@ extern int radeon_suspend_kms(struct drm_device *dev, pm_message_t state);
 extern void radeon_ttm_set_active_vram_size(struct radeon_device *rdev, u64 size);
 
 /*
+ * vm
+ */
+int radeon_vm_manager_init(struct radeon_device *rdev);
+void radeon_vm_manager_fini(struct radeon_device *rdev);
+int radeon_vm_manager_start(struct radeon_device *rdev);
+int radeon_vm_manager_suspend(struct radeon_device *rdev);
+int radeon_vm_init(struct radeon_device *rdev, struct radeon_vm *vm);
+void radeon_vm_fini(struct radeon_device *rdev, struct radeon_vm *vm);
+int radeon_vm_bind(struct radeon_device *rdev, struct radeon_vm *vm);
+void radeon_vm_unbind(struct radeon_device *rdev, struct radeon_vm *vm);
+int radeon_vm_bo_update_pte(struct radeon_device *rdev,
+			    struct radeon_vm *vm,
+			    struct radeon_bo *bo,
+			    struct ttm_mem_reg *mem);
+void radeon_vm_bo_invalidate(struct radeon_device *rdev,
+			     struct radeon_bo *bo);
+int radeon_vm_bo_add(struct radeon_device *rdev,
+		     struct radeon_vm *vm,
+		     struct radeon_bo *bo,
+		     uint64_t offset,
+		     uint32_t flags);
+int radeon_vm_bo_rmv(struct radeon_device *rdev,
+		     struct radeon_vm *vm,
+		     struct radeon_bo *bo);
+
+
+/*
  * R600 vram scratch functions
  */
 int r600_vram_scratch_init(struct radeon_device *rdev);
diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c
index a2e1eae114ef..36a6192ce862 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.c
+++ b/drivers/gpu/drm/radeon/radeon_asic.c
@@ -138,14 +138,18 @@ static struct radeon_asic r100_asic = {
 	.asic_reset = &r100_asic_reset,
 	.gart_tlb_flush = &r100_pci_gart_tlb_flush,
 	.gart_set_page = &r100_pci_gart_set_page,
-	.cp_commit = &r100_cp_commit,
 	.ring_start = &r100_ring_start,
 	.ring_test = &r100_ring_test,
-	.ring_ib_execute = &r100_ring_ib_execute,
+	.ring = {
+		[RADEON_RING_TYPE_GFX_INDEX] = {
+			.ib_execute = &r100_ring_ib_execute,
+			.emit_fence = &r100_fence_ring_emit,
+			.emit_semaphore = &r100_semaphore_ring_emit,
+		}
+	},
 	.irq_set = &r100_irq_set,
 	.irq_process = &r100_irq_process,
 	.get_vblank_counter = &r100_get_vblank_counter,
-	.fence_ring_emit = &r100_fence_ring_emit,
 	.cs_parse = &r100_cs_parse,
 	.copy_blit = &r100_copy_blit,
 	.copy_dma = NULL,
@@ -186,14 +190,18 @@ static struct radeon_asic r200_asic = {
 	.asic_reset = &r100_asic_reset,
 	.gart_tlb_flush = &r100_pci_gart_tlb_flush,
 	.gart_set_page = &r100_pci_gart_set_page,
-	.cp_commit = &r100_cp_commit,
 	.ring_start = &r100_ring_start,
 	.ring_test = &r100_ring_test,
-	.ring_ib_execute = &r100_ring_ib_execute,
+	.ring = {
+		[RADEON_RING_TYPE_GFX_INDEX] = {
+			.ib_execute = &r100_ring_ib_execute,
+			.emit_fence = &r100_fence_ring_emit,
+			.emit_semaphore = &r100_semaphore_ring_emit,
+		}
+	},
 	.irq_set = &r100_irq_set,
 	.irq_process = &r100_irq_process,
 	.get_vblank_counter = &r100_get_vblank_counter,
-	.fence_ring_emit = &r100_fence_ring_emit,
 	.cs_parse = &r100_cs_parse,
 	.copy_blit = &r100_copy_blit,
 	.copy_dma = &r200_copy_dma,
@@ -233,14 +241,18 @@ static struct radeon_asic r300_asic = {
 	.asic_reset = &r300_asic_reset,
 	.gart_tlb_flush = &r100_pci_gart_tlb_flush,
 	.gart_set_page = &r100_pci_gart_set_page,
-	.cp_commit = &r100_cp_commit,
 	.ring_start = &r300_ring_start,
 	.ring_test = &r100_ring_test,
-	.ring_ib_execute = &r100_ring_ib_execute,
+	.ring = {
+		[RADEON_RING_TYPE_GFX_INDEX] = {
+			.ib_execute = &r100_ring_ib_execute,
+			.emit_fence = &r300_fence_ring_emit,
+			.emit_semaphore = &r100_semaphore_ring_emit,
+		}
+	},
 	.irq_set = &r100_irq_set,
 	.irq_process = &r100_irq_process,
 	.get_vblank_counter = &r100_get_vblank_counter,
-	.fence_ring_emit = &r300_fence_ring_emit,
 	.cs_parse = &r300_cs_parse,
 	.copy_blit = &r100_copy_blit,
 	.copy_dma = &r200_copy_dma,
@@ -281,14 +293,18 @@ static struct radeon_asic r300_asic_pcie = {
 	.asic_reset = &r300_asic_reset,
 	.gart_tlb_flush = &rv370_pcie_gart_tlb_flush,
 	.gart_set_page = &rv370_pcie_gart_set_page,
-	.cp_commit = &r100_cp_commit,
 	.ring_start = &r300_ring_start,
 	.ring_test = &r100_ring_test,
-	.ring_ib_execute = &r100_ring_ib_execute,
+	.ring = {
+		[RADEON_RING_TYPE_GFX_INDEX] = {
+			.ib_execute = &r100_ring_ib_execute,
+			.emit_fence = &r300_fence_ring_emit,
+			.emit_semaphore = &r100_semaphore_ring_emit,
+		}
+	},
 	.irq_set = &r100_irq_set,
 	.irq_process = &r100_irq_process,
 	.get_vblank_counter = &r100_get_vblank_counter,
-	.fence_ring_emit = &r300_fence_ring_emit,
 	.cs_parse = &r300_cs_parse,
 	.copy_blit = &r100_copy_blit,
 	.copy_dma = &r200_copy_dma,
@@ -328,14 +344,18 @@ static struct radeon_asic r420_asic = {
 	.asic_reset = &r300_asic_reset,
 	.gart_tlb_flush = &rv370_pcie_gart_tlb_flush,
 	.gart_set_page = &rv370_pcie_gart_set_page,
-	.cp_commit = &r100_cp_commit,
 	.ring_start = &r300_ring_start,
 	.ring_test = &r100_ring_test,
-	.ring_ib_execute = &r100_ring_ib_execute,
+	.ring = {
+		[RADEON_RING_TYPE_GFX_INDEX] = {
+			.ib_execute = &r100_ring_ib_execute,
+			.emit_fence = &r300_fence_ring_emit,
+			.emit_semaphore = &r100_semaphore_ring_emit,
+		}
+	},
 	.irq_set = &r100_irq_set,
 	.irq_process = &r100_irq_process,
 	.get_vblank_counter = &r100_get_vblank_counter,
-	.fence_ring_emit = &r300_fence_ring_emit,
 	.cs_parse = &r300_cs_parse,
 	.copy_blit = &r100_copy_blit,
 	.copy_dma = &r200_copy_dma,
@@ -376,14 +396,18 @@ static struct radeon_asic rs400_asic = {
 	.asic_reset = &r300_asic_reset,
 	.gart_tlb_flush = &rs400_gart_tlb_flush,
 	.gart_set_page = &rs400_gart_set_page,
-	.cp_commit = &r100_cp_commit,
 	.ring_start = &r300_ring_start,
 	.ring_test = &r100_ring_test,
-	.ring_ib_execute = &r100_ring_ib_execute,
+	.ring = {
+		[RADEON_RING_TYPE_GFX_INDEX] = {
+			.ib_execute = &r100_ring_ib_execute,
+			.emit_fence = &r300_fence_ring_emit,
+			.emit_semaphore = &r100_semaphore_ring_emit,
+		}
+	},
 	.irq_set = &r100_irq_set,
 	.irq_process = &r100_irq_process,
 	.get_vblank_counter = &r100_get_vblank_counter,
-	.fence_ring_emit = &r300_fence_ring_emit,
 	.cs_parse = &r300_cs_parse,
 	.copy_blit = &r100_copy_blit,
 	.copy_dma = &r200_copy_dma,
@@ -424,14 +448,18 @@ static struct radeon_asic rs600_asic = {
 	.asic_reset = &rs600_asic_reset,
 	.gart_tlb_flush = &rs600_gart_tlb_flush,
 	.gart_set_page = &rs600_gart_set_page,
-	.cp_commit = &r100_cp_commit,
 	.ring_start = &r300_ring_start,
 	.ring_test = &r100_ring_test,
-	.ring_ib_execute = &r100_ring_ib_execute,
+	.ring = {
+		[RADEON_RING_TYPE_GFX_INDEX] = {
+			.ib_execute = &r100_ring_ib_execute,
+			.emit_fence = &r300_fence_ring_emit,
+			.emit_semaphore = &r100_semaphore_ring_emit,
+		}
+	},
 	.irq_set = &rs600_irq_set,
 	.irq_process = &rs600_irq_process,
 	.get_vblank_counter = &rs600_get_vblank_counter,
-	.fence_ring_emit = &r300_fence_ring_emit,
 	.cs_parse = &r300_cs_parse,
 	.copy_blit = &r100_copy_blit,
 	.copy_dma = &r200_copy_dma,
@@ -472,14 +500,18 @@ static struct radeon_asic rs690_asic = {
 	.asic_reset = &rs600_asic_reset,
 	.gart_tlb_flush = &rs400_gart_tlb_flush,
 	.gart_set_page = &rs400_gart_set_page,
-	.cp_commit = &r100_cp_commit,
 	.ring_start = &r300_ring_start,
 	.ring_test = &r100_ring_test,
-	.ring_ib_execute = &r100_ring_ib_execute,
+	.ring = {
+		[RADEON_RING_TYPE_GFX_INDEX] = {
+			.ib_execute = &r100_ring_ib_execute,
+			.emit_fence = &r300_fence_ring_emit,
+			.emit_semaphore = &r100_semaphore_ring_emit,
+		}
+	},
 	.irq_set = &rs600_irq_set,
 	.irq_process = &rs600_irq_process,
 	.get_vblank_counter = &rs600_get_vblank_counter,
-	.fence_ring_emit = &r300_fence_ring_emit,
 	.cs_parse = &r300_cs_parse,
 	.copy_blit = &r100_copy_blit,
 	.copy_dma = &r200_copy_dma,
@@ -520,14 +552,18 @@ static struct radeon_asic rv515_asic = {
 	.asic_reset = &rs600_asic_reset,
 	.gart_tlb_flush = &rv370_pcie_gart_tlb_flush,
 	.gart_set_page = &rv370_pcie_gart_set_page,
-	.cp_commit = &r100_cp_commit,
 	.ring_start = &rv515_ring_start,
 	.ring_test = &r100_ring_test,
-	.ring_ib_execute = &r100_ring_ib_execute,
+	.ring = {
+		[RADEON_RING_TYPE_GFX_INDEX] = {
+			.ib_execute = &r100_ring_ib_execute,
+			.emit_fence = &r300_fence_ring_emit,
+			.emit_semaphore = &r100_semaphore_ring_emit,
+		}
+	},
 	.irq_set = &rs600_irq_set,
 	.irq_process = &rs600_irq_process,
 	.get_vblank_counter = &rs600_get_vblank_counter,
-	.fence_ring_emit = &r300_fence_ring_emit,
 	.cs_parse = &r300_cs_parse,
 	.copy_blit = &r100_copy_blit,
 	.copy_dma = &r200_copy_dma,
@@ -568,14 +604,18 @@ static struct radeon_asic r520_asic = {
 	.asic_reset = &rs600_asic_reset,
 	.gart_tlb_flush = &rv370_pcie_gart_tlb_flush,
 	.gart_set_page = &rv370_pcie_gart_set_page,
-	.cp_commit = &r100_cp_commit,
 	.ring_start = &rv515_ring_start,
 	.ring_test = &r100_ring_test,
-	.ring_ib_execute = &r100_ring_ib_execute,
+	.ring = {
+		[RADEON_RING_TYPE_GFX_INDEX] = {
+			.ib_execute = &r100_ring_ib_execute,
+			.emit_fence = &r300_fence_ring_emit,
+			.emit_semaphore = &r100_semaphore_ring_emit,
+		}
+	},
 	.irq_set = &rs600_irq_set,
 	.irq_process = &rs600_irq_process,
 	.get_vblank_counter = &rs600_get_vblank_counter,
-	.fence_ring_emit = &r300_fence_ring_emit,
 	.cs_parse = &r300_cs_parse,
 	.copy_blit = &r100_copy_blit,
 	.copy_dma = &r200_copy_dma,
@@ -611,18 +651,22 @@ static struct radeon_asic r600_asic = {
 	.fini = &r600_fini,
 	.suspend = &r600_suspend,
 	.resume = &r600_resume,
-	.cp_commit = &r600_cp_commit,
 	.vga_set_state = &r600_vga_set_state,
 	.gpu_is_lockup = &r600_gpu_is_lockup,
 	.asic_reset = &r600_asic_reset,
 	.gart_tlb_flush = &r600_pcie_gart_tlb_flush,
 	.gart_set_page = &rs600_gart_set_page,
 	.ring_test = &r600_ring_test,
-	.ring_ib_execute = &r600_ring_ib_execute,
+	.ring = {
+		[RADEON_RING_TYPE_GFX_INDEX] = {
+			.ib_execute = &r600_ring_ib_execute,
+			.emit_fence = &r600_fence_ring_emit,
+			.emit_semaphore = &r600_semaphore_ring_emit,
+		}
+	},
 	.irq_set = &r600_irq_set,
 	.irq_process = &r600_irq_process,
 	.get_vblank_counter = &rs600_get_vblank_counter,
-	.fence_ring_emit = &r600_fence_ring_emit,
 	.cs_parse = &r600_cs_parse,
 	.copy_blit = &r600_copy_blit,
 	.copy_dma = NULL,
@@ -658,18 +702,22 @@ static struct radeon_asic rs780_asic = {
 	.fini = &r600_fini,
 	.suspend = &r600_suspend,
 	.resume = &r600_resume,
-	.cp_commit = &r600_cp_commit,
 	.gpu_is_lockup = &r600_gpu_is_lockup,
 	.vga_set_state = &r600_vga_set_state,
 	.asic_reset = &r600_asic_reset,
 	.gart_tlb_flush = &r600_pcie_gart_tlb_flush,
 	.gart_set_page = &rs600_gart_set_page,
 	.ring_test = &r600_ring_test,
-	.ring_ib_execute = &r600_ring_ib_execute,
+	.ring = {
+		[RADEON_RING_TYPE_GFX_INDEX] = {
+			.ib_execute = &r600_ring_ib_execute,
+			.emit_fence = &r600_fence_ring_emit,
+			.emit_semaphore = &r600_semaphore_ring_emit,
+		}
+	},
 	.irq_set = &r600_irq_set,
 	.irq_process = &r600_irq_process,
 	.get_vblank_counter = &rs600_get_vblank_counter,
-	.fence_ring_emit = &r600_fence_ring_emit,
 	.cs_parse = &r600_cs_parse,
 	.copy_blit = &r600_copy_blit,
 	.copy_dma = NULL,
@@ -705,18 +753,22 @@ static struct radeon_asic rv770_asic = {
 	.fini = &rv770_fini,
 	.suspend = &rv770_suspend,
 	.resume = &rv770_resume,
-	.cp_commit = &r600_cp_commit,
 	.asic_reset = &r600_asic_reset,
 	.gpu_is_lockup = &r600_gpu_is_lockup,
 	.vga_set_state = &r600_vga_set_state,
 	.gart_tlb_flush = &r600_pcie_gart_tlb_flush,
 	.gart_set_page = &rs600_gart_set_page,
 	.ring_test = &r600_ring_test,
-	.ring_ib_execute = &r600_ring_ib_execute,
+	.ring = {
+		[RADEON_RING_TYPE_GFX_INDEX] = {
+			.ib_execute = &r600_ring_ib_execute,
+			.emit_fence = &r600_fence_ring_emit,
+			.emit_semaphore = &r600_semaphore_ring_emit,
+		}
+	},
 	.irq_set = &r600_irq_set,
 	.irq_process = &r600_irq_process,
 	.get_vblank_counter = &rs600_get_vblank_counter,
-	.fence_ring_emit = &r600_fence_ring_emit,
 	.cs_parse = &r600_cs_parse,
 	.copy_blit = &r600_copy_blit,
 	.copy_dma = NULL,
@@ -752,18 +804,22 @@ static struct radeon_asic evergreen_asic = {
 	.fini = &evergreen_fini,
 	.suspend = &evergreen_suspend,
 	.resume = &evergreen_resume,
-	.cp_commit = &r600_cp_commit,
 	.gpu_is_lockup = &evergreen_gpu_is_lockup,
 	.asic_reset = &evergreen_asic_reset,
 	.vga_set_state = &r600_vga_set_state,
 	.gart_tlb_flush = &evergreen_pcie_gart_tlb_flush,
 	.gart_set_page = &rs600_gart_set_page,
 	.ring_test = &r600_ring_test,
-	.ring_ib_execute = &evergreen_ring_ib_execute,
+	.ring = {
+		[RADEON_RING_TYPE_GFX_INDEX] = {
+			.ib_execute = &evergreen_ring_ib_execute,
+			.emit_fence = &r600_fence_ring_emit,
+			.emit_semaphore = &r600_semaphore_ring_emit,
+		}
+	},
 	.irq_set = &evergreen_irq_set,
 	.irq_process = &evergreen_irq_process,
 	.get_vblank_counter = &evergreen_get_vblank_counter,
-	.fence_ring_emit = &r600_fence_ring_emit,
 	.cs_parse = &evergreen_cs_parse,
 	.copy_blit = &r600_copy_blit,
 	.copy_dma = NULL,
@@ -799,18 +855,22 @@ static struct radeon_asic sumo_asic = {
 	.fini = &evergreen_fini,
 	.suspend = &evergreen_suspend,
 	.resume = &evergreen_resume,
-	.cp_commit = &r600_cp_commit,
 	.gpu_is_lockup = &evergreen_gpu_is_lockup,
 	.asic_reset = &evergreen_asic_reset,
 	.vga_set_state = &r600_vga_set_state,
 	.gart_tlb_flush = &evergreen_pcie_gart_tlb_flush,
 	.gart_set_page = &rs600_gart_set_page,
 	.ring_test = &r600_ring_test,
-	.ring_ib_execute = &evergreen_ring_ib_execute,
+	.ring = {
+		[RADEON_RING_TYPE_GFX_INDEX] = {
+			.ib_execute = &evergreen_ring_ib_execute,
+			.emit_fence = &r600_fence_ring_emit,
+			.emit_semaphore = &r600_semaphore_ring_emit,
+		}
+	},
 	.irq_set = &evergreen_irq_set,
 	.irq_process = &evergreen_irq_process,
 	.get_vblank_counter = &evergreen_get_vblank_counter,
-	.fence_ring_emit = &r600_fence_ring_emit,
 	.cs_parse = &evergreen_cs_parse,
 	.copy_blit = &r600_copy_blit,
 	.copy_dma = NULL,
@@ -846,18 +906,22 @@ static struct radeon_asic btc_asic = {
 	.fini = &evergreen_fini,
 	.suspend = &evergreen_suspend,
 	.resume = &evergreen_resume,
-	.cp_commit = &r600_cp_commit,
 	.gpu_is_lockup = &evergreen_gpu_is_lockup,
 	.asic_reset = &evergreen_asic_reset,
 	.vga_set_state = &r600_vga_set_state,
 	.gart_tlb_flush = &evergreen_pcie_gart_tlb_flush,
 	.gart_set_page = &rs600_gart_set_page,
 	.ring_test = &r600_ring_test,
-	.ring_ib_execute = &evergreen_ring_ib_execute,
+	.ring = {
+		[RADEON_RING_TYPE_GFX_INDEX] = {
+			.ib_execute = &evergreen_ring_ib_execute,
+			.emit_fence = &r600_fence_ring_emit,
+			.emit_semaphore = &r600_semaphore_ring_emit,
+		}
+	},
 	.irq_set = &evergreen_irq_set,
 	.irq_process = &evergreen_irq_process,
 	.get_vblank_counter = &evergreen_get_vblank_counter,
-	.fence_ring_emit = &r600_fence_ring_emit,
 	.cs_parse = &evergreen_cs_parse,
 	.copy_blit = &r600_copy_blit,
 	.copy_dma = NULL,
@@ -888,23 +952,50 @@ static struct radeon_asic btc_asic = {
 	.post_page_flip = &evergreen_post_page_flip,
 };
 
+static const struct radeon_vm_funcs cayman_vm_funcs = {
+	.init = &cayman_vm_init,
+	.fini = &cayman_vm_fini,
+	.bind = &cayman_vm_bind,
+	.unbind = &cayman_vm_unbind,
+	.tlb_flush = &cayman_vm_tlb_flush,
+	.page_flags = &cayman_vm_page_flags,
+	.set_page = &cayman_vm_set_page,
+};
+
 static struct radeon_asic cayman_asic = {
 	.init = &cayman_init,
 	.fini = &cayman_fini,
 	.suspend = &cayman_suspend,
 	.resume = &cayman_resume,
-	.cp_commit = &r600_cp_commit,
 	.gpu_is_lockup = &cayman_gpu_is_lockup,
 	.asic_reset = &cayman_asic_reset,
 	.vga_set_state = &r600_vga_set_state,
 	.gart_tlb_flush = &cayman_pcie_gart_tlb_flush,
 	.gart_set_page = &rs600_gart_set_page,
 	.ring_test = &r600_ring_test,
-	.ring_ib_execute = &evergreen_ring_ib_execute,
+	.ring = {
+		[RADEON_RING_TYPE_GFX_INDEX] = {
+			.ib_execute = &cayman_ring_ib_execute,
+			.ib_parse = &evergreen_ib_parse,
+			.emit_fence = &cayman_fence_ring_emit,
+			.emit_semaphore = &r600_semaphore_ring_emit,
+		},
+		[CAYMAN_RING_TYPE_CP1_INDEX] = {
+			.ib_execute = &cayman_ring_ib_execute,
+			.ib_parse = &evergreen_ib_parse,
+			.emit_fence = &cayman_fence_ring_emit,
+			.emit_semaphore = &r600_semaphore_ring_emit,
+		},
+		[CAYMAN_RING_TYPE_CP2_INDEX] = {
+			.ib_execute = &cayman_ring_ib_execute,
+			.ib_parse = &evergreen_ib_parse,
+			.emit_fence = &cayman_fence_ring_emit,
+			.emit_semaphore = &r600_semaphore_ring_emit,
+		}
+	},
 	.irq_set = &evergreen_irq_set,
 	.irq_process = &evergreen_irq_process,
 	.get_vblank_counter = &evergreen_get_vblank_counter,
-	.fence_ring_emit = &r600_fence_ring_emit,
 	.cs_parse = &evergreen_cs_parse,
 	.copy_blit = &r600_copy_blit,
 	.copy_dma = NULL,
@@ -945,6 +1036,9 @@ int radeon_asic_init(struct radeon_device *rdev)
 	else
 		rdev->num_crtc = 2;
 
+	/* set the ring used for bo copies */
+	rdev->copy_ring = RADEON_RING_TYPE_GFX_INDEX;
+
 	switch (rdev->family) {
 	case CHIP_R100:
 	case CHIP_RV100:
@@ -1050,6 +1144,7 @@ int radeon_asic_init(struct radeon_device *rdev)
 		rdev->asic = &cayman_asic;
 		/* set num crtcs */
 		rdev->num_crtc = 6;
+		rdev->vm_manager.funcs = &cayman_vm_funcs;
 		break;
 	default:
 		/* FIXME: not supported yet */
diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h
index 59914842a729..6304aef0d9b2 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.h
+++ b/drivers/gpu/drm/radeon/radeon_asic.h
@@ -58,17 +58,20 @@ void r100_fini(struct radeon_device *rdev);
 int r100_suspend(struct radeon_device *rdev);
 int r100_resume(struct radeon_device *rdev);
 void r100_vga_set_state(struct radeon_device *rdev, bool state);
-bool r100_gpu_is_lockup(struct radeon_device *rdev);
+bool r100_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *cp);
 int r100_asic_reset(struct radeon_device *rdev);
 u32 r100_get_vblank_counter(struct radeon_device *rdev, int crtc);
 void r100_pci_gart_tlb_flush(struct radeon_device *rdev);
 int r100_pci_gart_set_page(struct radeon_device *rdev, int i, uint64_t addr);
-void r100_cp_commit(struct radeon_device *rdev);
 void r100_ring_start(struct radeon_device *rdev);
 int r100_irq_set(struct radeon_device *rdev);
 int r100_irq_process(struct radeon_device *rdev);
 void r100_fence_ring_emit(struct radeon_device *rdev,
 			  struct radeon_fence *fence);
+void r100_semaphore_ring_emit(struct radeon_device *rdev,
+			      struct radeon_ring *cp,
+			      struct radeon_semaphore *semaphore,
+			      bool emit_wait);
 int r100_cs_parse(struct radeon_cs_parser *p);
 void r100_pll_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v);
 uint32_t r100_pll_rreg(struct radeon_device *rdev, uint32_t reg);
@@ -83,7 +86,7 @@ int r100_set_surface_reg(struct radeon_device *rdev, int reg,
 void r100_clear_surface_reg(struct radeon_device *rdev, int reg);
 void r100_bandwidth_update(struct radeon_device *rdev);
 void r100_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib);
-int r100_ring_test(struct radeon_device *rdev);
+int r100_ring_test(struct radeon_device *rdev, struct radeon_ring *cp);
 void r100_hpd_init(struct radeon_device *rdev);
 void r100_hpd_fini(struct radeon_device *rdev);
 bool r100_hpd_sense(struct radeon_device *rdev, enum radeon_hpd_id hpd);
@@ -101,12 +104,12 @@ void r100_pci_gart_disable(struct radeon_device *rdev);
 int r100_debugfs_mc_info_init(struct radeon_device *rdev);
 int r100_gui_wait_for_idle(struct radeon_device *rdev);
 void r100_gpu_lockup_update(struct r100_gpu_lockup *lockup,
-			    struct radeon_cp *cp);
+			    struct radeon_ring *cp);
 bool r100_gpu_cp_is_lockup(struct radeon_device *rdev,
 			   struct r100_gpu_lockup *lockup,
-			   struct radeon_cp *cp);
+			   struct radeon_ring *cp);
 void r100_ib_fini(struct radeon_device *rdev);
-int r100_ib_init(struct radeon_device *rdev);
+int r100_ib_test(struct radeon_device *rdev);
 void r100_irq_disable(struct radeon_device *rdev);
 void r100_mc_stop(struct radeon_device *rdev, struct r100_mc_save *save);
 void r100_mc_resume(struct radeon_device *rdev, struct r100_mc_save *save);
@@ -154,7 +157,7 @@ extern int r300_init(struct radeon_device *rdev);
 extern void r300_fini(struct radeon_device *rdev);
 extern int r300_suspend(struct radeon_device *rdev);
 extern int r300_resume(struct radeon_device *rdev);
-extern bool r300_gpu_is_lockup(struct radeon_device *rdev);
+extern bool r300_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *cp);
 extern int r300_asic_reset(struct radeon_device *rdev);
 extern void r300_ring_start(struct radeon_device *rdev);
 extern void r300_fence_ring_emit(struct radeon_device *rdev,
@@ -293,22 +296,25 @@ int r600_resume(struct radeon_device *rdev);
 void r600_vga_set_state(struct radeon_device *rdev, bool state);
 int r600_wb_init(struct radeon_device *rdev);
 void r600_wb_fini(struct radeon_device *rdev);
-void r600_cp_commit(struct radeon_device *rdev);
 void r600_pcie_gart_tlb_flush(struct radeon_device *rdev);
 uint32_t r600_pciep_rreg(struct radeon_device *rdev, uint32_t reg);
 void r600_pciep_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v);
 int r600_cs_parse(struct radeon_cs_parser *p);
 void r600_fence_ring_emit(struct radeon_device *rdev,
 			  struct radeon_fence *fence);
-bool r600_gpu_is_lockup(struct radeon_device *rdev);
+void r600_semaphore_ring_emit(struct radeon_device *rdev,
+			      struct radeon_ring *cp,
+			      struct radeon_semaphore *semaphore,
+			      bool emit_wait);
+bool r600_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *cp);
 int r600_asic_reset(struct radeon_device *rdev);
 int r600_set_surface_reg(struct radeon_device *rdev, int reg,
 			 uint32_t tiling_flags, uint32_t pitch,
 			 uint32_t offset, uint32_t obj_size);
 void r600_clear_surface_reg(struct radeon_device *rdev, int reg);
-int r600_ib_test(struct radeon_device *rdev);
+int r600_ib_test(struct radeon_device *rdev, int ring);
 void r600_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib);
-int r600_ring_test(struct radeon_device *rdev);
+int r600_ring_test(struct radeon_device *rdev, struct radeon_ring *cp);
 int r600_copy_blit(struct radeon_device *rdev,
 		   uint64_t src_offset, uint64_t dst_offset,
 		   unsigned num_gpu_pages, struct radeon_fence *fence);
@@ -328,7 +334,7 @@ extern int r600_get_pcie_lanes(struct radeon_device *rdev);
 bool r600_card_posted(struct radeon_device *rdev);
 void r600_cp_stop(struct radeon_device *rdev);
 int r600_cp_start(struct radeon_device *rdev);
-void r600_ring_init(struct radeon_device *rdev, unsigned ring_size);
+void r600_ring_init(struct radeon_device *rdev, struct radeon_ring *cp, unsigned ring_size);
 int r600_cp_resume(struct radeon_device *rdev);
 void r600_cp_fini(struct radeon_device *rdev);
 int r600_count_pipe_bits(uint32_t val);
@@ -397,7 +403,7 @@ int evergreen_init(struct radeon_device *rdev);
 void evergreen_fini(struct radeon_device *rdev);
 int evergreen_suspend(struct radeon_device *rdev);
 int evergreen_resume(struct radeon_device *rdev);
-bool evergreen_gpu_is_lockup(struct radeon_device *rdev);
+bool evergreen_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *cp);
 int evergreen_asic_reset(struct radeon_device *rdev);
 void evergreen_bandwidth_update(struct radeon_device *rdev);
 void evergreen_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib);
@@ -423,12 +429,26 @@ int evergreen_blit_init(struct radeon_device *rdev);
 /*
  * cayman
  */
+void cayman_fence_ring_emit(struct radeon_device *rdev,
+			    struct radeon_fence *fence);
 void cayman_pcie_gart_tlb_flush(struct radeon_device *rdev);
 int cayman_init(struct radeon_device *rdev);
 void cayman_fini(struct radeon_device *rdev);
 int cayman_suspend(struct radeon_device *rdev);
 int cayman_resume(struct radeon_device *rdev);
-bool cayman_gpu_is_lockup(struct radeon_device *rdev);
+bool cayman_gpu_is_lockup(struct radeon_device *rdev, struct radeon_ring *cp);
 int cayman_asic_reset(struct radeon_device *rdev);
+void cayman_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib);
+int cayman_vm_init(struct radeon_device *rdev);
+void cayman_vm_fini(struct radeon_device *rdev);
+int cayman_vm_bind(struct radeon_device *rdev, struct radeon_vm *vm, int id);
+void cayman_vm_unbind(struct radeon_device *rdev, struct radeon_vm *vm);
+void cayman_vm_tlb_flush(struct radeon_device *rdev, struct radeon_vm *vm);
+uint32_t cayman_vm_page_flags(struct radeon_device *rdev,
+			      struct radeon_vm *vm,
+			      uint32_t flags);
+void cayman_vm_set_page(struct radeon_device *rdev, struct radeon_vm *vm,
+			unsigned pfn, uint64_t addr, uint32_t flags);
+int evergreen_ib_parse(struct radeon_device *rdev, struct radeon_ib *ib);
 
 #endif
diff --git a/drivers/gpu/drm/radeon/radeon_benchmark.c b/drivers/gpu/drm/radeon/radeon_benchmark.c
index 17e1a9b2d8fb..815f2341ab94 100644
--- a/drivers/gpu/drm/radeon/radeon_benchmark.c
+++ b/drivers/gpu/drm/radeon/radeon_benchmark.c
@@ -43,7 +43,7 @@ static int radeon_benchmark_do_move(struct radeon_device *rdev, unsigned size,
 
 	start_jiffies = jiffies;
 	for (i = 0; i < n; i++) {
-		r = radeon_fence_create(rdev, &fence);
+		r = radeon_fence_create(rdev, &fence, RADEON_RING_TYPE_GFX_INDEX);
 		if (r)
 			return r;
 
@@ -229,21 +229,21 @@ void radeon_benchmark(struct radeon_device *rdev, int test_number)
 		break;
 	case 6:
 		/* GTT to VRAM, buffer size sweep, common modes */
-		for (i = 1; i < RADEON_BENCHMARK_COMMON_MODES_N; i++)
+		for (i = 0; i < RADEON_BENCHMARK_COMMON_MODES_N; i++)
 			radeon_benchmark_move(rdev, common_modes[i],
 					      RADEON_GEM_DOMAIN_GTT,
 					      RADEON_GEM_DOMAIN_VRAM);
 		break;
 	case 7:
 		/* VRAM to GTT, buffer size sweep, common modes */
-		for (i = 1; i < RADEON_BENCHMARK_COMMON_MODES_N; i++)
+		for (i = 0; i < RADEON_BENCHMARK_COMMON_MODES_N; i++)
 			radeon_benchmark_move(rdev, common_modes[i],
 					      RADEON_GEM_DOMAIN_VRAM,
 					      RADEON_GEM_DOMAIN_GTT);
 		break;
 	case 8:
 		/* VRAM to VRAM, buffer size sweep, common modes */
-		for (i = 1; i < RADEON_BENCHMARK_COMMON_MODES_N; i++)
+		for (i = 0; i < RADEON_BENCHMARK_COMMON_MODES_N; i++)
 			radeon_benchmark_move(rdev, common_modes[i],
 					      RADEON_GEM_DOMAIN_VRAM,
 					      RADEON_GEM_DOMAIN_VRAM);
diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c
index 29afd71e0840..435a3d970ab8 100644
--- a/drivers/gpu/drm/radeon/radeon_cs.c
+++ b/drivers/gpu/drm/radeon/radeon_cs.c
@@ -58,7 +58,7 @@ int radeon_cs_parser_relocs(struct radeon_cs_parser *p)
 
 		duplicate = false;
 		r = (struct drm_radeon_cs_reloc *)&chunk->kdata[i*4];
-		for (j = 0; j < p->nrelocs; j++) {
+		for (j = 0; j < i; j++) {
 			if (r->handle == p->relocs[j].handle) {
 				p->relocs_ptr[i] = &p->relocs[j];
 				duplicate = true;
@@ -84,16 +84,75 @@ int radeon_cs_parser_relocs(struct radeon_cs_parser *p)
 			p->relocs[i].flags = r->flags;
 			radeon_bo_list_add_object(&p->relocs[i].lobj,
 						  &p->validated);
-		}
+
+			if (p->relocs[i].robj->tbo.sync_obj && !(r->flags & RADEON_RELOC_DONT_SYNC)) {
+				struct radeon_fence *fence = p->relocs[i].robj->tbo.sync_obj;
+				if (!radeon_fence_signaled(fence)) {
+					p->sync_to_ring[fence->ring] = true;
+				}
+			}
+		} else
+			p->relocs[i].handle = 0;
 	}
 	return radeon_bo_list_validate(&p->validated);
 }
 
+static int radeon_cs_get_ring(struct radeon_cs_parser *p, u32 ring, s32 priority)
+{
+	p->priority = priority;
+
+	switch (ring) {
+	default:
+		DRM_ERROR("unknown ring id: %d\n", ring);
+		return -EINVAL;
+	case RADEON_CS_RING_GFX:
+		p->ring = RADEON_RING_TYPE_GFX_INDEX;
+		break;
+	case RADEON_CS_RING_COMPUTE:
+		/* for now */
+		p->ring = RADEON_RING_TYPE_GFX_INDEX;
+		break;
+	}
+	return 0;
+}
+
+static int radeon_cs_sync_rings(struct radeon_cs_parser *p)
+{
+	int i, r;
+
+	for (i = 0; i < RADEON_NUM_RINGS; ++i) {
+		/* no need to sync to our own or unused rings */
+		if (i == p->ring || !p->sync_to_ring[i] || !p->rdev->ring[i].ready)
+			continue;
+
+		if (!p->ib->fence->semaphore) {
+			r = radeon_semaphore_create(p->rdev, &p->ib->fence->semaphore);
+			if (r)
+				return r;
+		}
+
+		r = radeon_ring_lock(p->rdev, &p->rdev->ring[i], 3);
+		if (r)
+			return r;
+		radeon_semaphore_emit_signal(p->rdev, i, p->ib->fence->semaphore);
+		radeon_ring_unlock_commit(p->rdev, &p->rdev->ring[i]);
+
+		r = radeon_ring_lock(p->rdev, &p->rdev->ring[p->ring], 3);
+		if (r)
+			return r;
+		radeon_semaphore_emit_wait(p->rdev, p->ring, p->ib->fence->semaphore);
+		radeon_ring_unlock_commit(p->rdev, &p->rdev->ring[p->ring]);
+	}
+	return 0;
+}
+
 int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data)
 {
 	struct drm_radeon_cs *cs = data;
 	uint64_t *chunk_array_ptr;
-	unsigned size, i, flags = 0;
+	unsigned size, i;
+	u32 ring = RADEON_CS_RING_GFX;
+	s32 priority = 0;
 
 	if (!cs->num_chunks) {
 		return 0;
@@ -103,6 +162,7 @@ int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data)
 	p->idx = 0;
 	p->chunk_ib_idx = -1;
 	p->chunk_relocs_idx = -1;
+	p->chunk_flags_idx = -1;
 	p->chunks_array = kcalloc(cs->num_chunks, sizeof(uint64_t), GFP_KERNEL);
 	if (p->chunks_array == NULL) {
 		return -ENOMEM;
@@ -112,6 +172,7 @@ int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data)
 			       sizeof(uint64_t)*cs->num_chunks)) {
 		return -EFAULT;
 	}
+	p->cs_flags = 0;
 	p->nchunks = cs->num_chunks;
 	p->chunks = kcalloc(p->nchunks, sizeof(struct radeon_cs_chunk), GFP_KERNEL);
 	if (p->chunks == NULL) {
@@ -140,16 +201,19 @@ int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data)
 			if (p->chunks[i].length_dw == 0)
 				return -EINVAL;
 		}
-		if (p->chunks[i].chunk_id == RADEON_CHUNK_ID_FLAGS &&
-		    !p->chunks[i].length_dw) {
-			return -EINVAL;
+		if (p->chunks[i].chunk_id == RADEON_CHUNK_ID_FLAGS) {
+			p->chunk_flags_idx = i;
+			/* zero length flags aren't useful */
+			if (p->chunks[i].length_dw == 0)
+				return -EINVAL;
 		}
 
 		p->chunks[i].length_dw = user_chunk.length_dw;
 		p->chunks[i].user_ptr = (void __user *)(unsigned long)user_chunk.chunk_data;
 
 		cdata = (uint32_t *)(unsigned long)user_chunk.chunk_data;
-		if (p->chunks[i].chunk_id != RADEON_CHUNK_ID_IB) {
+		if ((p->chunks[i].chunk_id == RADEON_CHUNK_ID_RELOCS) ||
+		    (p->chunks[i].chunk_id == RADEON_CHUNK_ID_FLAGS)) {
 			size = p->chunks[i].length_dw * sizeof(uint32_t);
 			p->chunks[i].kdata = kmalloc(size, GFP_KERNEL);
 			if (p->chunks[i].kdata == NULL) {
@@ -160,29 +224,58 @@ int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data)
 				return -EFAULT;
 			}
 			if (p->chunks[i].chunk_id == RADEON_CHUNK_ID_FLAGS) {
-				flags = p->chunks[i].kdata[0];
+				p->cs_flags = p->chunks[i].kdata[0];
+				if (p->chunks[i].length_dw > 1)
+					ring = p->chunks[i].kdata[1];
+				if (p->chunks[i].length_dw > 2)
+					priority = (s32)p->chunks[i].kdata[2];
 			}
-		} else {
-			p->chunks[i].kpage[0] = kmalloc(PAGE_SIZE, GFP_KERNEL);
-			p->chunks[i].kpage[1] = kmalloc(PAGE_SIZE, GFP_KERNEL);
-			if (p->chunks[i].kpage[0] == NULL || p->chunks[i].kpage[1] == NULL) {
-				kfree(p->chunks[i].kpage[0]);
-				kfree(p->chunks[i].kpage[1]);
-				return -ENOMEM;
-			}
-			p->chunks[i].kpage_idx[0] = -1;
-			p->chunks[i].kpage_idx[1] = -1;
-			p->chunks[i].last_copied_page = -1;
-			p->chunks[i].last_page_index = ((p->chunks[i].length_dw * 4) - 1) / PAGE_SIZE;
 		}
 	}
-	if (p->chunks[p->chunk_ib_idx].length_dw > (16 * 1024)) {
-		DRM_ERROR("cs IB too big: %d\n",
-			  p->chunks[p->chunk_ib_idx].length_dw);
+
+	if ((p->cs_flags & RADEON_CS_USE_VM) &&
+	    !p->rdev->vm_manager.enabled) {
+		DRM_ERROR("VM not active on asic!\n");
+		if (p->chunk_relocs_idx != -1)
+			kfree(p->chunks[p->chunk_relocs_idx].kdata);
+		if (p->chunk_flags_idx != -1)
+			kfree(p->chunks[p->chunk_flags_idx].kdata);
 		return -EINVAL;
 	}
 
-	p->keep_tiling_flags = (flags & RADEON_CS_KEEP_TILING_FLAGS) != 0;
+	if (radeon_cs_get_ring(p, ring, priority)) {
+		if (p->chunk_relocs_idx != -1)
+			kfree(p->chunks[p->chunk_relocs_idx].kdata);
+		if (p->chunk_flags_idx != -1)
+			kfree(p->chunks[p->chunk_flags_idx].kdata);
+		return -EINVAL;
+	}
+
+
+	/* deal with non-vm */
+	if ((p->chunk_ib_idx != -1) &&
+	    ((p->cs_flags & RADEON_CS_USE_VM) == 0) &&
+	    (p->chunks[p->chunk_ib_idx].chunk_id == RADEON_CHUNK_ID_IB)) {
+		if (p->chunks[p->chunk_ib_idx].length_dw > (16 * 1024)) {
+			DRM_ERROR("cs IB too big: %d\n",
+				  p->chunks[p->chunk_ib_idx].length_dw);
+			return -EINVAL;
+		}
+		p->chunks[p->chunk_ib_idx].kpage[0] = kmalloc(PAGE_SIZE, GFP_KERNEL);
+		p->chunks[p->chunk_ib_idx].kpage[1] = kmalloc(PAGE_SIZE, GFP_KERNEL);
+		if (p->chunks[p->chunk_ib_idx].kpage[0] == NULL ||
+		    p->chunks[p->chunk_ib_idx].kpage[1] == NULL) {
+			kfree(p->chunks[p->chunk_ib_idx].kpage[0]);
+			kfree(p->chunks[p->chunk_ib_idx].kpage[1]);
+			return -ENOMEM;
+		}
+		p->chunks[p->chunk_ib_idx].kpage_idx[0] = -1;
+		p->chunks[p->chunk_ib_idx].kpage_idx[1] = -1;
+		p->chunks[p->chunk_ib_idx].last_copied_page = -1;
+		p->chunks[p->chunk_ib_idx].last_page_index =
+			((p->chunks[p->chunk_ib_idx].length_dw * 4) - 1) / PAGE_SIZE;
+	}
+
 	return 0;
 }
 
@@ -224,11 +317,139 @@ static void radeon_cs_parser_fini(struct radeon_cs_parser *parser, int error)
 	radeon_ib_free(parser->rdev, &parser->ib);
 }
 
+static int radeon_cs_ib_chunk(struct radeon_device *rdev,
+			      struct radeon_cs_parser *parser)
+{
+	struct radeon_cs_chunk *ib_chunk;
+	int r;
+
+	if (parser->chunk_ib_idx == -1)
+		return 0;
+
+	if (parser->cs_flags & RADEON_CS_USE_VM)
+		return 0;
+
+	ib_chunk = &parser->chunks[parser->chunk_ib_idx];
+	/* Copy the packet into the IB, the parser will read from the
+	 * input memory (cached) and write to the IB (which can be
+	 * uncached).
+	 */
+	r =  radeon_ib_get(rdev, parser->ring, &parser->ib,
+			   ib_chunk->length_dw * 4);
+	if (r) {
+		DRM_ERROR("Failed to get ib !\n");
+		return r;
+	}
+	parser->ib->length_dw = ib_chunk->length_dw;
+	r = radeon_cs_parse(parser);
+	if (r || parser->parser_error) {
+		DRM_ERROR("Invalid command stream !\n");
+		return r;
+	}
+	r = radeon_cs_finish_pages(parser);
+	if (r) {
+		DRM_ERROR("Invalid command stream !\n");
+		return r;
+	}
+	r = radeon_cs_sync_rings(parser);
+	if (r) {
+		DRM_ERROR("Failed to synchronize rings !\n");
+	}
+	parser->ib->vm_id = 0;
+	r = radeon_ib_schedule(rdev, parser->ib);
+	if (r) {
+		DRM_ERROR("Failed to schedule IB !\n");
+	}
+	return 0;
+}
+
+static int radeon_bo_vm_update_pte(struct radeon_cs_parser *parser,
+				   struct radeon_vm *vm)
+{
+	struct radeon_bo_list *lobj;
+	struct radeon_bo *bo;
+	int r;
+
+	list_for_each_entry(lobj, &parser->validated, tv.head) {
+		bo = lobj->bo;
+		r = radeon_vm_bo_update_pte(parser->rdev, vm, bo, &bo->tbo.mem);
+		if (r) {
+			return r;
+		}
+	}
+	return 0;
+}
+
+static int radeon_cs_ib_vm_chunk(struct radeon_device *rdev,
+				 struct radeon_cs_parser *parser)
+{
+	struct radeon_cs_chunk *ib_chunk;
+	struct radeon_fpriv *fpriv = parser->filp->driver_priv;
+	struct radeon_vm *vm = &fpriv->vm;
+	int r;
+
+	if (parser->chunk_ib_idx == -1)
+		return 0;
+
+	if ((parser->cs_flags & RADEON_CS_USE_VM) == 0)
+		return 0;
+
+	ib_chunk = &parser->chunks[parser->chunk_ib_idx];
+	if (ib_chunk->length_dw > RADEON_IB_VM_MAX_SIZE) {
+		DRM_ERROR("cs IB too big: %d\n", ib_chunk->length_dw);
+		return -EINVAL;
+	}
+	r =  radeon_ib_get(rdev, parser->ring, &parser->ib,
+			   ib_chunk->length_dw * 4);
+	if (r) {
+		DRM_ERROR("Failed to get ib !\n");
+		return r;
+	}
+	parser->ib->length_dw = ib_chunk->length_dw;
+	/* Copy the packet into the IB */
+	if (DRM_COPY_FROM_USER(parser->ib->ptr, ib_chunk->user_ptr,
+			       ib_chunk->length_dw * 4)) {
+		return -EFAULT;
+	}
+	r = radeon_ring_ib_parse(rdev, parser->ring, parser->ib);
+	if (r) {
+		return r;
+	}
+
+	mutex_lock(&vm->mutex);
+	r = radeon_vm_bind(rdev, vm);
+	if (r) {
+		goto out;
+	}
+	r = radeon_bo_vm_update_pte(parser, vm);
+	if (r) {
+		goto out;
+	}
+	r = radeon_cs_sync_rings(parser);
+	if (r) {
+		DRM_ERROR("Failed to synchronize rings !\n");
+	}
+	parser->ib->vm_id = vm->id;
+	/* ib pool is bind at 0 in virtual address space to gpu_addr is the
+	 * offset inside the pool bo
+	 */
+	parser->ib->gpu_addr = parser->ib->sa_bo.offset;
+	r = radeon_ib_schedule(rdev, parser->ib);
+out:
+	if (!r) {
+		if (vm->fence) {
+			radeon_fence_unref(&vm->fence);
+		}
+		vm->fence = radeon_fence_ref(parser->ib->fence);
+	}
+	mutex_unlock(&fpriv->vm.mutex);
+	return r;
+}
+
 int radeon_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
 {
 	struct radeon_device *rdev = dev->dev_private;
 	struct radeon_cs_parser parser;
-	struct radeon_cs_chunk *ib_chunk;
 	int r;
 
 	radeon_mutex_lock(&rdev->cs_mutex);
@@ -245,13 +466,6 @@ int radeon_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
 		radeon_mutex_unlock(&rdev->cs_mutex);
 		return r;
 	}
-	r =  radeon_ib_get(rdev, &parser.ib);
-	if (r) {
-		DRM_ERROR("Failed to get ib !\n");
-		radeon_cs_parser_fini(&parser, r);
-		radeon_mutex_unlock(&rdev->cs_mutex);
-		return r;
-	}
 	r = radeon_cs_parser_relocs(&parser);
 	if (r) {
 		if (r != -ERESTARTSYS)
@@ -260,29 +474,15 @@ int radeon_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
 		radeon_mutex_unlock(&rdev->cs_mutex);
 		return r;
 	}
-	/* Copy the packet into the IB, the parser will read from the
-	 * input memory (cached) and write to the IB (which can be
-	 * uncached). */
-	ib_chunk = &parser.chunks[parser.chunk_ib_idx];
-	parser.ib->length_dw = ib_chunk->length_dw;
-	r = radeon_cs_parse(&parser);
-	if (r || parser.parser_error) {
-		DRM_ERROR("Invalid command stream !\n");
-		radeon_cs_parser_fini(&parser, r);
-		radeon_mutex_unlock(&rdev->cs_mutex);
-		return r;
-	}
-	r = radeon_cs_finish_pages(&parser);
+	r = radeon_cs_ib_chunk(rdev, &parser);
 	if (r) {
-		DRM_ERROR("Invalid command stream !\n");
-		radeon_cs_parser_fini(&parser, r);
-		radeon_mutex_unlock(&rdev->cs_mutex);
-		return r;
+		goto out;
 	}
-	r = radeon_ib_schedule(rdev, parser.ib);
+	r = radeon_cs_ib_vm_chunk(rdev, &parser);
 	if (r) {
-		DRM_ERROR("Failed to schedule IB !\n");
+		goto out;
 	}
+out:
 	radeon_cs_parser_fini(&parser, r);
 	radeon_mutex_unlock(&rdev->cs_mutex);
 	return r;
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index c4d00a171411..0afb13bd8dca 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -224,8 +224,11 @@ int radeon_wb_init(struct radeon_device *rdev)
 	if (radeon_no_wb == 1)
 		rdev->wb.enabled = false;
 	else {
-		/* often unreliable on AGP */
 		if (rdev->flags & RADEON_IS_AGP) {
+			/* often unreliable on AGP */
+			rdev->wb.enabled = false;
+		} else if (rdev->family < CHIP_R300) {
+			/* often unreliable on pre-r300 */
 			rdev->wb.enabled = false;
 		} else {
 			rdev->wb.enabled = true;
@@ -718,17 +721,24 @@ int radeon_device_init(struct radeon_device *rdev,
 	 * can recall function without having locking issues */
 	radeon_mutex_init(&rdev->cs_mutex);
 	mutex_init(&rdev->ib_pool.mutex);
-	mutex_init(&rdev->cp.mutex);
+	for (i = 0; i < RADEON_NUM_RINGS; ++i)
+		mutex_init(&rdev->ring[i].mutex);
 	mutex_init(&rdev->dc_hw_i2c_mutex);
 	if (rdev->family >= CHIP_R600)
 		spin_lock_init(&rdev->ih.lock);
 	mutex_init(&rdev->gem.mutex);
 	mutex_init(&rdev->pm.mutex);
 	mutex_init(&rdev->vram_mutex);
-	rwlock_init(&rdev->fence_drv.lock);
+	rwlock_init(&rdev->fence_lock);
+	rwlock_init(&rdev->semaphore_drv.lock);
 	INIT_LIST_HEAD(&rdev->gem.objects);
 	init_waitqueue_head(&rdev->irq.vblank_queue);
 	init_waitqueue_head(&rdev->irq.idle_queue);
+	INIT_LIST_HEAD(&rdev->semaphore_drv.bo);
+	/* initialize vm here */
+	rdev->vm_manager.use_bitmap = 1;
+	rdev->vm_manager.max_pfn = 1 << 20;
+	INIT_LIST_HEAD(&rdev->vm_manager.lru_vm);
 
 	/* Set asic functions */
 	r = radeon_asic_init(rdev);
@@ -765,8 +775,14 @@ int radeon_device_init(struct radeon_device *rdev,
 	r = pci_set_dma_mask(rdev->pdev, DMA_BIT_MASK(dma_bits));
 	if (r) {
 		rdev->need_dma32 = true;
+		dma_bits = 32;
 		printk(KERN_WARNING "radeon: No suitable DMA available.\n");
 	}
+	r = pci_set_consistent_dma_mask(rdev->pdev, DMA_BIT_MASK(dma_bits));
+	if (r) {
+		pci_set_consistent_dma_mask(rdev->pdev, DMA_BIT_MASK(32));
+		printk(KERN_WARNING "radeon: No coherent DMA available.\n");
+	}
 
 	/* Registers mapping */
 	/* TODO: block userspace mapping of io register */
@@ -814,15 +830,20 @@ int radeon_device_init(struct radeon_device *rdev,
 		if (r)
 			return r;
 	}
-	if (radeon_testing) {
+	if ((radeon_testing & 1)) {
 		radeon_test_moves(rdev);
 	}
+	if ((radeon_testing & 2)) {
+		radeon_test_syncing(rdev);
+	}
 	if (radeon_benchmarking) {
 		radeon_benchmark(rdev, radeon_benchmarking);
 	}
 	return 0;
 }
 
+static void radeon_debugfs_remove_files(struct radeon_device *rdev);
+
 void radeon_device_fini(struct radeon_device *rdev)
 {
 	DRM_INFO("radeon: finishing device.\n");
@@ -837,6 +858,7 @@ void radeon_device_fini(struct radeon_device *rdev)
 	rdev->rio_mem = NULL;
 	iounmap(rdev->rmmio);
 	rdev->rmmio = NULL;
+	radeon_debugfs_remove_files(rdev);
 }
 
 
@@ -848,7 +870,7 @@ int radeon_suspend_kms(struct drm_device *dev, pm_message_t state)
 	struct radeon_device *rdev;
 	struct drm_crtc *crtc;
 	struct drm_connector *connector;
-	int r;
+	int i, r;
 
 	if (dev == NULL || dev->dev_private == NULL) {
 		return -ENODEV;
@@ -887,7 +909,8 @@ int radeon_suspend_kms(struct drm_device *dev, pm_message_t state)
 	/* evict vram memory */
 	radeon_bo_evict_vram(rdev);
 	/* wait for gpu to finish processing current batch */
-	radeon_fence_wait_last(rdev);
+	for (i = 0; i < RADEON_NUM_RINGS; i++)
+		radeon_fence_wait_last(rdev, i);
 
 	radeon_save_bios_scratch_regs(rdev);
 
@@ -986,36 +1009,29 @@ int radeon_gpu_reset(struct radeon_device *rdev)
 /*
  * Debugfs
  */
-struct radeon_debugfs {
-	struct drm_info_list	*files;
-	unsigned		num_files;
-};
-static struct radeon_debugfs _radeon_debugfs[RADEON_DEBUGFS_MAX_COMPONENTS];
-static unsigned _radeon_debugfs_count = 0;
-
 int radeon_debugfs_add_files(struct radeon_device *rdev,
 			     struct drm_info_list *files,
 			     unsigned nfiles)
 {
 	unsigned i;
 
-	for (i = 0; i < _radeon_debugfs_count; i++) {
-		if (_radeon_debugfs[i].files == files) {
+	for (i = 0; i < rdev->debugfs_count; i++) {
+		if (rdev->debugfs[i].files == files) {
 			/* Already registered */
 			return 0;
 		}
 	}
 
-	i = _radeon_debugfs_count + 1;
+	i = rdev->debugfs_count + 1;
 	if (i > RADEON_DEBUGFS_MAX_COMPONENTS) {
 		DRM_ERROR("Reached maximum number of debugfs components.\n");
 		DRM_ERROR("Report so we increase "
 		          "RADEON_DEBUGFS_MAX_COMPONENTS.\n");
 		return -EINVAL;
 	}
-	_radeon_debugfs[_radeon_debugfs_count].files = files;
-	_radeon_debugfs[_radeon_debugfs_count].num_files = nfiles;
-	_radeon_debugfs_count = i;
+	rdev->debugfs[rdev->debugfs_count].files = files;
+	rdev->debugfs[rdev->debugfs_count].num_files = nfiles;
+	rdev->debugfs_count = i;
 #if defined(CONFIG_DEBUG_FS)
 	drm_debugfs_create_files(files, nfiles,
 				 rdev->ddev->control->debugfs_root,
@@ -1027,6 +1043,22 @@ int radeon_debugfs_add_files(struct radeon_device *rdev,
 	return 0;
 }
 
+static void radeon_debugfs_remove_files(struct radeon_device *rdev)
+{
+#if defined(CONFIG_DEBUG_FS)
+	unsigned i;
+
+	for (i = 0; i < rdev->debugfs_count; i++) {
+		drm_debugfs_remove_files(rdev->debugfs[i].files,
+					 rdev->debugfs[i].num_files,
+					 rdev->ddev->control);
+		drm_debugfs_remove_files(rdev->debugfs[i].files,
+					 rdev->debugfs[i].num_files,
+					 rdev->ddev->primary);
+	}
+#endif
+}
+
 #if defined(CONFIG_DEBUG_FS)
 int radeon_debugfs_init(struct drm_minor *minor)
 {
@@ -1035,11 +1067,5 @@ int radeon_debugfs_init(struct drm_minor *minor)
 
 void radeon_debugfs_cleanup(struct drm_minor *minor)
 {
-	unsigned i;
-
-	for (i = 0; i < _radeon_debugfs_count; i++) {
-		drm_debugfs_remove_files(_radeon_debugfs[i].files,
-					 _radeon_debugfs[i].num_files, minor);
-	}
 }
 #endif
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index a22d6e6a49a2..d3ffc18774a6 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -406,7 +406,7 @@ static int radeon_crtc_page_flip(struct drm_crtc *crtc,
 	if (!ASIC_IS_AVIVO(rdev)) {
 		/* crtc offset is from display base addr not FB location */
 		base -= radeon_crtc->legacy_display_base_addr;
-		pitch_pixels = fb->pitch / (fb->bits_per_pixel / 8);
+		pitch_pixels = fb->pitches[0] / (fb->bits_per_pixel / 8);
 
 		if (tiling_flags & RADEON_TILING_MACRO) {
 			if (ASIC_IS_R300(rdev)) {
@@ -1081,7 +1081,7 @@ static const struct drm_framebuffer_funcs radeon_fb_funcs = {
 void
 radeon_framebuffer_init(struct drm_device *dev,
 			struct radeon_framebuffer *rfb,
-			struct drm_mode_fb_cmd *mode_cmd,
+			struct drm_mode_fb_cmd2 *mode_cmd,
 			struct drm_gem_object *obj)
 {
 	rfb->obj = obj;
@@ -1092,15 +1092,15 @@ radeon_framebuffer_init(struct drm_device *dev,
 static struct drm_framebuffer *
 radeon_user_framebuffer_create(struct drm_device *dev,
 			       struct drm_file *file_priv,
-			       struct drm_mode_fb_cmd *mode_cmd)
+			       struct drm_mode_fb_cmd2 *mode_cmd)
 {
 	struct drm_gem_object *obj;
 	struct radeon_framebuffer *radeon_fb;
 
-	obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handle);
+	obj = drm_gem_object_lookup(dev, file_priv, mode_cmd->handles[0]);
 	if (obj ==  NULL) {
 		dev_err(&dev->pdev->dev, "No GEM object associated to handle 0x%08X, "
-			"can't create framebuffer\n", mode_cmd->handle);
+			"can't create framebuffer\n", mode_cmd->handles[0]);
 		return ERR_PTR(-ENOENT);
 	}
 
diff --git a/drivers/gpu/drm/radeon/radeon_drv.c b/drivers/gpu/drm/radeon/radeon_drv.c
index 71499fc3daf5..31da622eef63 100644
--- a/drivers/gpu/drm/radeon/radeon_drv.c
+++ b/drivers/gpu/drm/radeon/radeon_drv.c
@@ -54,9 +54,10 @@
  *   2.10.0 - fusion 2D tiling
  *   2.11.0 - backend map, initial compute support for the CS checker
  *   2.12.0 - RADEON_CS_KEEP_TILING_FLAGS
+ *   2.13.0 - virtual memory support
  */
 #define KMS_DRIVER_MAJOR	2
-#define KMS_DRIVER_MINOR	12
+#define KMS_DRIVER_MINOR	13
 #define KMS_DRIVER_PATCHLEVEL	0
 int radeon_driver_load_kms(struct drm_device *dev, unsigned long flags);
 int radeon_driver_unload_kms(struct drm_device *dev);
@@ -84,6 +85,10 @@ int radeon_dma_ioctl_kms(struct drm_device *dev, void *data,
 			 struct drm_file *file_priv);
 int radeon_gem_object_init(struct drm_gem_object *obj);
 void radeon_gem_object_free(struct drm_gem_object *obj);
+int radeon_gem_object_open(struct drm_gem_object *obj,
+				struct drm_file *file_priv);
+void radeon_gem_object_close(struct drm_gem_object *obj,
+				struct drm_file *file_priv);
 extern int radeon_get_crtc_scanoutpos(struct drm_device *dev, int crtc,
 				      int *vpos, int *hpos);
 extern struct drm_ioctl_desc radeon_ioctls_kms[];
@@ -206,6 +211,21 @@ static struct pci_device_id pciidlist[] = {
 MODULE_DEVICE_TABLE(pci, pciidlist);
 #endif
 
+static const struct file_operations radeon_driver_old_fops = {
+	.owner = THIS_MODULE,
+	.open = drm_open,
+	.release = drm_release,
+	.unlocked_ioctl = drm_ioctl,
+	.mmap = drm_mmap,
+	.poll = drm_poll,
+	.fasync = drm_fasync,
+	.read = drm_read,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl = radeon_compat_ioctl,
+#endif
+	.llseek = noop_llseek,
+};
+
 static struct drm_driver driver_old = {
 	.driver_features =
 	    DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_PCI_DMA | DRIVER_SG |
@@ -232,21 +252,7 @@ static struct drm_driver driver_old = {
 	.reclaim_buffers = drm_core_reclaim_buffers,
 	.ioctls = radeon_ioctls,
 	.dma_ioctl = radeon_cp_buffers,
-	.fops = {
-		 .owner = THIS_MODULE,
-		 .open = drm_open,
-		 .release = drm_release,
-		 .unlocked_ioctl = drm_ioctl,
-		 .mmap = drm_mmap,
-		 .poll = drm_poll,
-		 .fasync = drm_fasync,
-		 .read = drm_read,
-#ifdef CONFIG_COMPAT
-		 .compat_ioctl = radeon_compat_ioctl,
-#endif
-		 .llseek = noop_llseek,
-	},
-
+	.fops = &radeon_driver_old_fops,
 	.name = DRIVER_NAME,
 	.desc = DRIVER_DESC,
 	.date = DRIVER_DATE,
@@ -304,6 +310,20 @@ radeon_pci_resume(struct pci_dev *pdev)
 	return radeon_resume_kms(dev);
 }
 
+static const struct file_operations radeon_driver_kms_fops = {
+	.owner = THIS_MODULE,
+	.open = drm_open,
+	.release = drm_release,
+	.unlocked_ioctl = drm_ioctl,
+	.mmap = radeon_mmap,
+	.poll = drm_poll,
+	.fasync = drm_fasync,
+	.read = drm_read,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl = radeon_kms_compat_ioctl,
+#endif
+};
+
 static struct drm_driver kms_driver = {
 	.driver_features =
 	    DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_PCI_DMA | DRIVER_SG |
@@ -335,24 +355,13 @@ static struct drm_driver kms_driver = {
 	.ioctls = radeon_ioctls_kms,
 	.gem_init_object = radeon_gem_object_init,
 	.gem_free_object = radeon_gem_object_free,
+	.gem_open_object = radeon_gem_object_open,
+	.gem_close_object = radeon_gem_object_close,
 	.dma_ioctl = radeon_dma_ioctl_kms,
 	.dumb_create = radeon_mode_dumb_create,
 	.dumb_map_offset = radeon_mode_dumb_mmap,
 	.dumb_destroy = radeon_mode_dumb_destroy,
-	.fops = {
-		 .owner = THIS_MODULE,
-		 .open = drm_open,
-		 .release = drm_release,
-		 .unlocked_ioctl = drm_ioctl,
-		 .mmap = radeon_mmap,
-		 .poll = drm_poll,
-		 .fasync = drm_fasync,
-		 .read = drm_read,
-#ifdef CONFIG_COMPAT
-		 .compat_ioctl = radeon_kms_compat_ioctl,
-#endif
-	},
-
+	.fops = &radeon_driver_kms_fops,
 	.name = DRIVER_NAME,
 	.desc = DRIVER_DESC,
 	.date = DRIVER_DATE,
diff --git a/drivers/gpu/drm/radeon/radeon_fb.c b/drivers/gpu/drm/radeon/radeon_fb.c
index 0b7b486c97e8..cf2bf35b56b8 100644
--- a/drivers/gpu/drm/radeon/radeon_fb.c
+++ b/drivers/gpu/drm/radeon/radeon_fb.c
@@ -103,7 +103,7 @@ static void radeonfb_destroy_pinned_object(struct drm_gem_object *gobj)
 }
 
 static int radeonfb_create_pinned_object(struct radeon_fbdev *rfbdev,
-					 struct drm_mode_fb_cmd *mode_cmd,
+					 struct drm_mode_fb_cmd2 *mode_cmd,
 					 struct drm_gem_object **gobj_p)
 {
 	struct radeon_device *rdev = rfbdev->rdev;
@@ -114,13 +114,17 @@ static int radeonfb_create_pinned_object(struct radeon_fbdev *rfbdev,
 	int ret;
 	int aligned_size, size;
 	int height = mode_cmd->height;
+	u32 bpp, depth;
+
+	drm_fb_get_bpp_depth(mode_cmd->pixel_format, &depth, &bpp);
 
 	/* need to align pitch with crtc limits */
-	mode_cmd->pitch = radeon_align_pitch(rdev, mode_cmd->width, mode_cmd->bpp, fb_tiled) * ((mode_cmd->bpp + 1) / 8);
+	mode_cmd->pitches[0] = radeon_align_pitch(rdev, mode_cmd->width, bpp,
+						  fb_tiled) * ((bpp + 1) / 8);
 
 	if (rdev->family >= CHIP_R600)
 		height = ALIGN(mode_cmd->height, 8);
-	size = mode_cmd->pitch * height;
+	size = mode_cmd->pitches[0] * height;
 	aligned_size = ALIGN(size, PAGE_SIZE);
 	ret = radeon_gem_object_create(rdev, aligned_size, 0,
 				       RADEON_GEM_DOMAIN_VRAM,
@@ -137,7 +141,7 @@ static int radeonfb_create_pinned_object(struct radeon_fbdev *rfbdev,
 		tiling_flags = RADEON_TILING_MACRO;
 
 #ifdef __BIG_ENDIAN
-	switch (mode_cmd->bpp) {
+	switch (bpp) {
 	case 32:
 		tiling_flags |= RADEON_TILING_SWAP_32BIT;
 		break;
@@ -151,7 +155,7 @@ static int radeonfb_create_pinned_object(struct radeon_fbdev *rfbdev,
 	if (tiling_flags) {
 		ret = radeon_bo_set_tiling_flags(rbo,
 						 tiling_flags | RADEON_TILING_SURFACE,
-						 mode_cmd->pitch);
+						 mode_cmd->pitches[0]);
 		if (ret)
 			dev_err(rdev->dev, "FB failed to set tiling flags\n");
 	}
@@ -187,7 +191,7 @@ static int radeonfb_create(struct radeon_fbdev *rfbdev,
 	struct radeon_device *rdev = rfbdev->rdev;
 	struct fb_info *info;
 	struct drm_framebuffer *fb = NULL;
-	struct drm_mode_fb_cmd mode_cmd;
+	struct drm_mode_fb_cmd2 mode_cmd;
 	struct drm_gem_object *gobj = NULL;
 	struct radeon_bo *rbo = NULL;
 	struct device *device = &rdev->pdev->dev;
@@ -201,8 +205,8 @@ static int radeonfb_create(struct radeon_fbdev *rfbdev,
 	if ((sizes->surface_bpp == 24) && ASIC_IS_AVIVO(rdev))
 		sizes->surface_bpp = 32;
 
-	mode_cmd.bpp = sizes->surface_bpp;
-	mode_cmd.depth = sizes->surface_depth;
+	mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
+							  sizes->surface_depth);
 
 	ret = radeonfb_create_pinned_object(rfbdev, &mode_cmd, &gobj);
 	rbo = gem_to_radeon_bo(gobj);
@@ -228,7 +232,7 @@ static int radeonfb_create(struct radeon_fbdev *rfbdev,
 
 	strcpy(info->fix.id, "radeondrmfb");
 
-	drm_fb_helper_fill_fix(info, fb->pitch, fb->depth);
+	drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
 
 	info->flags = FBINFO_DEFAULT | FBINFO_CAN_FORCE_OUTPUT;
 	info->fbops = &radeonfb_ops;
@@ -271,7 +275,7 @@ static int radeonfb_create(struct radeon_fbdev *rfbdev,
 	DRM_INFO("vram apper at 0x%lX\n",  (unsigned long)rdev->mc.aper_base);
 	DRM_INFO("size %lu\n", (unsigned long)radeon_bo_size(rbo));
 	DRM_INFO("fb depth is %d\n", fb->depth);
-	DRM_INFO("   pitch is %d\n", fb->pitch);
+	DRM_INFO("   pitch is %d\n", fb->pitches[0]);
 
 	vga_switcheroo_client_fb_set(rdev->ddev->pdev, info);
 	return 0;
diff --git a/drivers/gpu/drm/radeon/radeon_fence.c b/drivers/gpu/drm/radeon/radeon_fence.c
index 76ec0e9ed8ae..64ea3dd9e6ff 100644
--- a/drivers/gpu/drm/radeon/radeon_fence.c
+++ b/drivers/gpu/drm/radeon/radeon_fence.c
@@ -40,32 +40,24 @@
 #include "radeon.h"
 #include "radeon_trace.h"
 
-static void radeon_fence_write(struct radeon_device *rdev, u32 seq)
+static void radeon_fence_write(struct radeon_device *rdev, u32 seq, int ring)
 {
 	if (rdev->wb.enabled) {
-		u32 scratch_index;
-		if (rdev->wb.use_event)
-			scratch_index = R600_WB_EVENT_OFFSET + rdev->fence_drv.scratch_reg - rdev->scratch.reg_base;
-		else
-			scratch_index = RADEON_WB_SCRATCH_OFFSET + rdev->fence_drv.scratch_reg - rdev->scratch.reg_base;
-		rdev->wb.wb[scratch_index/4] = cpu_to_le32(seq);
-	} else
-		WREG32(rdev->fence_drv.scratch_reg, seq);
+		*rdev->fence_drv[ring].cpu_addr = cpu_to_le32(seq);
+	} else {
+		WREG32(rdev->fence_drv[ring].scratch_reg, seq);
+	}
 }
 
-static u32 radeon_fence_read(struct radeon_device *rdev)
+static u32 radeon_fence_read(struct radeon_device *rdev, int ring)
 {
-	u32 seq;
+	u32 seq = 0;
 
 	if (rdev->wb.enabled) {
-		u32 scratch_index;
-		if (rdev->wb.use_event)
-			scratch_index = R600_WB_EVENT_OFFSET + rdev->fence_drv.scratch_reg - rdev->scratch.reg_base;
-		else
-			scratch_index = RADEON_WB_SCRATCH_OFFSET + rdev->fence_drv.scratch_reg - rdev->scratch.reg_base;
-		seq = le32_to_cpu(rdev->wb.wb[scratch_index/4]);
-	} else
-		seq = RREG32(rdev->fence_drv.scratch_reg);
+		seq = le32_to_cpu(*rdev->fence_drv[ring].cpu_addr);
+	} else {
+		seq = RREG32(rdev->fence_drv[ring].scratch_reg);
+	}
 	return seq;
 }
 
@@ -73,28 +65,28 @@ int radeon_fence_emit(struct radeon_device *rdev, struct radeon_fence *fence)
 {
 	unsigned long irq_flags;
 
-	write_lock_irqsave(&rdev->fence_drv.lock, irq_flags);
-	if (fence->emited) {
-		write_unlock_irqrestore(&rdev->fence_drv.lock, irq_flags);
+	write_lock_irqsave(&rdev->fence_lock, irq_flags);
+	if (fence->emitted) {
+		write_unlock_irqrestore(&rdev->fence_lock, irq_flags);
 		return 0;
 	}
-	fence->seq = atomic_add_return(1, &rdev->fence_drv.seq);
-	if (!rdev->cp.ready)
+	fence->seq = atomic_add_return(1, &rdev->fence_drv[fence->ring].seq);
+	if (!rdev->ring[fence->ring].ready)
 		/* FIXME: cp is not running assume everythings is done right
 		 * away
 		 */
-		radeon_fence_write(rdev, fence->seq);
+		radeon_fence_write(rdev, fence->seq, fence->ring);
 	else
-		radeon_fence_ring_emit(rdev, fence);
+		radeon_fence_ring_emit(rdev, fence->ring, fence);
 
 	trace_radeon_fence_emit(rdev->ddev, fence->seq);
-	fence->emited = true;
-	list_move_tail(&fence->list, &rdev->fence_drv.emited);
-	write_unlock_irqrestore(&rdev->fence_drv.lock, irq_flags);
+	fence->emitted = true;
+	list_move_tail(&fence->list, &rdev->fence_drv[fence->ring].emitted);
+	write_unlock_irqrestore(&rdev->fence_lock, irq_flags);
 	return 0;
 }
 
-static bool radeon_fence_poll_locked(struct radeon_device *rdev)
+static bool radeon_fence_poll_locked(struct radeon_device *rdev, int ring)
 {
 	struct radeon_fence *fence;
 	struct list_head *i, *n;
@@ -102,34 +94,34 @@ static bool radeon_fence_poll_locked(struct radeon_device *rdev)
 	bool wake = false;
 	unsigned long cjiffies;
 
-	seq = radeon_fence_read(rdev);
-	if (seq != rdev->fence_drv.last_seq) {
-		rdev->fence_drv.last_seq = seq;
-		rdev->fence_drv.last_jiffies = jiffies;
-		rdev->fence_drv.last_timeout = RADEON_FENCE_JIFFIES_TIMEOUT;
+	seq = radeon_fence_read(rdev, ring);
+	if (seq != rdev->fence_drv[ring].last_seq) {
+		rdev->fence_drv[ring].last_seq = seq;
+		rdev->fence_drv[ring].last_jiffies = jiffies;
+		rdev->fence_drv[ring].last_timeout = RADEON_FENCE_JIFFIES_TIMEOUT;
 	} else {
 		cjiffies = jiffies;
-		if (time_after(cjiffies, rdev->fence_drv.last_jiffies)) {
-			cjiffies -= rdev->fence_drv.last_jiffies;
-			if (time_after(rdev->fence_drv.last_timeout, cjiffies)) {
+		if (time_after(cjiffies, rdev->fence_drv[ring].last_jiffies)) {
+			cjiffies -= rdev->fence_drv[ring].last_jiffies;
+			if (time_after(rdev->fence_drv[ring].last_timeout, cjiffies)) {
 				/* update the timeout */
-				rdev->fence_drv.last_timeout -= cjiffies;
+				rdev->fence_drv[ring].last_timeout -= cjiffies;
 			} else {
 				/* the 500ms timeout is elapsed we should test
 				 * for GPU lockup
 				 */
-				rdev->fence_drv.last_timeout = 1;
+				rdev->fence_drv[ring].last_timeout = 1;
 			}
 		} else {
 			/* wrap around update last jiffies, we will just wait
 			 * a little longer
 			 */
-			rdev->fence_drv.last_jiffies = cjiffies;
+			rdev->fence_drv[ring].last_jiffies = cjiffies;
 		}
 		return false;
 	}
 	n = NULL;
-	list_for_each(i, &rdev->fence_drv.emited) {
+	list_for_each(i, &rdev->fence_drv[ring].emitted) {
 		fence = list_entry(i, struct radeon_fence, list);
 		if (fence->seq == seq) {
 			n = i;
@@ -141,11 +133,11 @@ static bool radeon_fence_poll_locked(struct radeon_device *rdev)
 		i = n;
 		do {
 			n = i->prev;
-			list_move_tail(i, &rdev->fence_drv.signaled);
+			list_move_tail(i, &rdev->fence_drv[ring].signaled);
 			fence = list_entry(i, struct radeon_fence, list);
 			fence->signaled = true;
 			i = n;
-		} while (i != &rdev->fence_drv.emited);
+		} while (i != &rdev->fence_drv[ring].emitted);
 		wake = true;
 	}
 	return wake;
@@ -157,14 +149,18 @@ static void radeon_fence_destroy(struct kref *kref)
         struct radeon_fence *fence;
 
 	fence = container_of(kref, struct radeon_fence, kref);
-	write_lock_irqsave(&fence->rdev->fence_drv.lock, irq_flags);
+	write_lock_irqsave(&fence->rdev->fence_lock, irq_flags);
 	list_del(&fence->list);
-	fence->emited = false;
-	write_unlock_irqrestore(&fence->rdev->fence_drv.lock, irq_flags);
+	fence->emitted = false;
+	write_unlock_irqrestore(&fence->rdev->fence_lock, irq_flags);
+	if (fence->semaphore)
+		radeon_semaphore_free(fence->rdev, fence->semaphore);
 	kfree(fence);
 }
 
-int radeon_fence_create(struct radeon_device *rdev, struct radeon_fence **fence)
+int radeon_fence_create(struct radeon_device *rdev,
+			struct radeon_fence **fence,
+			int ring)
 {
 	unsigned long irq_flags;
 
@@ -174,18 +170,19 @@ int radeon_fence_create(struct radeon_device *rdev, struct radeon_fence **fence)
 	}
 	kref_init(&((*fence)->kref));
 	(*fence)->rdev = rdev;
-	(*fence)->emited = false;
+	(*fence)->emitted = false;
 	(*fence)->signaled = false;
 	(*fence)->seq = 0;
+	(*fence)->ring = ring;
+	(*fence)->semaphore = NULL;
 	INIT_LIST_HEAD(&(*fence)->list);
 
-	write_lock_irqsave(&rdev->fence_drv.lock, irq_flags);
-	list_add_tail(&(*fence)->list, &rdev->fence_drv.created);
-	write_unlock_irqrestore(&rdev->fence_drv.lock, irq_flags);
+	write_lock_irqsave(&rdev->fence_lock, irq_flags);
+	list_add_tail(&(*fence)->list, &rdev->fence_drv[ring].created);
+	write_unlock_irqrestore(&rdev->fence_lock, irq_flags);
 	return 0;
 }
 
-
 bool radeon_fence_signaled(struct radeon_fence *fence)
 {
 	unsigned long irq_flags;
@@ -197,21 +194,21 @@ bool radeon_fence_signaled(struct radeon_fence *fence)
 	if (fence->rdev->gpu_lockup)
 		return true;
 
-	write_lock_irqsave(&fence->rdev->fence_drv.lock, irq_flags);
+	write_lock_irqsave(&fence->rdev->fence_lock, irq_flags);
 	signaled = fence->signaled;
 	/* if we are shuting down report all fence as signaled */
 	if (fence->rdev->shutdown) {
 		signaled = true;
 	}
-	if (!fence->emited) {
-		WARN(1, "Querying an unemited fence : %p !\n", fence);
+	if (!fence->emitted) {
+		WARN(1, "Querying an unemitted fence : %p !\n", fence);
 		signaled = true;
 	}
 	if (!signaled) {
-		radeon_fence_poll_locked(fence->rdev);
+		radeon_fence_poll_locked(fence->rdev, fence->ring);
 		signaled = fence->signaled;
 	}
-	write_unlock_irqrestore(&fence->rdev->fence_drv.lock, irq_flags);
+	write_unlock_irqrestore(&fence->rdev->fence_lock, irq_flags);
 	return signaled;
 }
 
@@ -230,24 +227,24 @@ int radeon_fence_wait(struct radeon_fence *fence, bool intr)
 	if (radeon_fence_signaled(fence)) {
 		return 0;
 	}
-	timeout = rdev->fence_drv.last_timeout;
+	timeout = rdev->fence_drv[fence->ring].last_timeout;
 retry:
 	/* save current sequence used to check for GPU lockup */
-	seq = rdev->fence_drv.last_seq;
+	seq = rdev->fence_drv[fence->ring].last_seq;
 	trace_radeon_fence_wait_begin(rdev->ddev, seq);
 	if (intr) {
-		radeon_irq_kms_sw_irq_get(rdev);
-		r = wait_event_interruptible_timeout(rdev->fence_drv.queue,
+		radeon_irq_kms_sw_irq_get(rdev, fence->ring);
+		r = wait_event_interruptible_timeout(rdev->fence_drv[fence->ring].queue,
 				radeon_fence_signaled(fence), timeout);
-		radeon_irq_kms_sw_irq_put(rdev);
+		radeon_irq_kms_sw_irq_put(rdev, fence->ring);
 		if (unlikely(r < 0)) {
 			return r;
 		}
 	} else {
-		radeon_irq_kms_sw_irq_get(rdev);
-		r = wait_event_timeout(rdev->fence_drv.queue,
+		radeon_irq_kms_sw_irq_get(rdev, fence->ring);
+		r = wait_event_timeout(rdev->fence_drv[fence->ring].queue,
 			 radeon_fence_signaled(fence), timeout);
-		radeon_irq_kms_sw_irq_put(rdev);
+		radeon_irq_kms_sw_irq_put(rdev, fence->ring);
 	}
 	trace_radeon_fence_wait_end(rdev->ddev, seq);
 	if (unlikely(!radeon_fence_signaled(fence))) {
@@ -258,10 +255,11 @@ retry:
 			timeout = r;
 			goto retry;
 		}
-		/* don't protect read access to rdev->fence_drv.last_seq
+		/* don't protect read access to rdev->fence_drv[t].last_seq
 		 * if we experiencing a lockup the value doesn't change
 		 */
-		if (seq == rdev->fence_drv.last_seq && radeon_gpu_is_lockup(rdev)) {
+		if (seq == rdev->fence_drv[fence->ring].last_seq &&
+		    radeon_gpu_is_lockup(rdev, &rdev->ring[fence->ring])) {
 			/* good news we believe it's a lockup */
 			printk(KERN_WARNING "GPU lockup (waiting for 0x%08X last fence id 0x%08X)\n",
 			     fence->seq, seq);
@@ -272,20 +270,20 @@ retry:
 			r = radeon_gpu_reset(rdev);
 			if (r)
 				return r;
-			radeon_fence_write(rdev, fence->seq);
+			radeon_fence_write(rdev, fence->seq, fence->ring);
 			rdev->gpu_lockup = false;
 		}
 		timeout = RADEON_FENCE_JIFFIES_TIMEOUT;
-		write_lock_irqsave(&rdev->fence_drv.lock, irq_flags);
-		rdev->fence_drv.last_timeout = RADEON_FENCE_JIFFIES_TIMEOUT;
-		rdev->fence_drv.last_jiffies = jiffies;
-		write_unlock_irqrestore(&rdev->fence_drv.lock, irq_flags);
+		write_lock_irqsave(&rdev->fence_lock, irq_flags);
+		rdev->fence_drv[fence->ring].last_timeout = RADEON_FENCE_JIFFIES_TIMEOUT;
+		rdev->fence_drv[fence->ring].last_jiffies = jiffies;
+		write_unlock_irqrestore(&rdev->fence_lock, irq_flags);
 		goto retry;
 	}
 	return 0;
 }
 
-int radeon_fence_wait_next(struct radeon_device *rdev)
+int radeon_fence_wait_next(struct radeon_device *rdev, int ring)
 {
 	unsigned long irq_flags;
 	struct radeon_fence *fence;
@@ -294,21 +292,21 @@ int radeon_fence_wait_next(struct radeon_device *rdev)
 	if (rdev->gpu_lockup) {
 		return 0;
 	}
-	write_lock_irqsave(&rdev->fence_drv.lock, irq_flags);
-	if (list_empty(&rdev->fence_drv.emited)) {
-		write_unlock_irqrestore(&rdev->fence_drv.lock, irq_flags);
+	write_lock_irqsave(&rdev->fence_lock, irq_flags);
+	if (list_empty(&rdev->fence_drv[ring].emitted)) {
+		write_unlock_irqrestore(&rdev->fence_lock, irq_flags);
 		return 0;
 	}
-	fence = list_entry(rdev->fence_drv.emited.next,
+	fence = list_entry(rdev->fence_drv[ring].emitted.next,
 			   struct radeon_fence, list);
 	radeon_fence_ref(fence);
-	write_unlock_irqrestore(&rdev->fence_drv.lock, irq_flags);
+	write_unlock_irqrestore(&rdev->fence_lock, irq_flags);
 	r = radeon_fence_wait(fence, false);
 	radeon_fence_unref(&fence);
 	return r;
 }
 
-int radeon_fence_wait_last(struct radeon_device *rdev)
+int radeon_fence_wait_last(struct radeon_device *rdev, int ring)
 {
 	unsigned long irq_flags;
 	struct radeon_fence *fence;
@@ -317,15 +315,15 @@ int radeon_fence_wait_last(struct radeon_device *rdev)
 	if (rdev->gpu_lockup) {
 		return 0;
 	}
-	write_lock_irqsave(&rdev->fence_drv.lock, irq_flags);
-	if (list_empty(&rdev->fence_drv.emited)) {
-		write_unlock_irqrestore(&rdev->fence_drv.lock, irq_flags);
+	write_lock_irqsave(&rdev->fence_lock, irq_flags);
+	if (list_empty(&rdev->fence_drv[ring].emitted)) {
+		write_unlock_irqrestore(&rdev->fence_lock, irq_flags);
 		return 0;
 	}
-	fence = list_entry(rdev->fence_drv.emited.prev,
+	fence = list_entry(rdev->fence_drv[ring].emitted.prev,
 			   struct radeon_fence, list);
 	radeon_fence_ref(fence);
-	write_unlock_irqrestore(&rdev->fence_drv.lock, irq_flags);
+	write_unlock_irqrestore(&rdev->fence_lock, irq_flags);
 	r = radeon_fence_wait(fence, false);
 	radeon_fence_unref(&fence);
 	return r;
@@ -347,39 +345,95 @@ void radeon_fence_unref(struct radeon_fence **fence)
 	}
 }
 
-void radeon_fence_process(struct radeon_device *rdev)
+void radeon_fence_process(struct radeon_device *rdev, int ring)
 {
 	unsigned long irq_flags;
 	bool wake;
 
-	write_lock_irqsave(&rdev->fence_drv.lock, irq_flags);
-	wake = radeon_fence_poll_locked(rdev);
-	write_unlock_irqrestore(&rdev->fence_drv.lock, irq_flags);
+	write_lock_irqsave(&rdev->fence_lock, irq_flags);
+	wake = radeon_fence_poll_locked(rdev, ring);
+	write_unlock_irqrestore(&rdev->fence_lock, irq_flags);
 	if (wake) {
-		wake_up_all(&rdev->fence_drv.queue);
+		wake_up_all(&rdev->fence_drv[ring].queue);
 	}
 }
 
-int radeon_fence_driver_init(struct radeon_device *rdev)
+int radeon_fence_count_emitted(struct radeon_device *rdev, int ring)
+{
+	unsigned long irq_flags;
+	int not_processed = 0;
+
+	read_lock_irqsave(&rdev->fence_lock, irq_flags);
+	if (!rdev->fence_drv[ring].initialized)
+		return 0;
+
+	if (!list_empty(&rdev->fence_drv[ring].emitted)) {
+		struct list_head *ptr;
+		list_for_each(ptr, &rdev->fence_drv[ring].emitted) {
+			/* count up to 3, that's enought info */
+			if (++not_processed >= 3)
+				break;
+		}
+	}
+	read_unlock_irqrestore(&rdev->fence_lock, irq_flags);
+	return not_processed;
+}
+
+int radeon_fence_driver_start_ring(struct radeon_device *rdev, int ring)
 {
 	unsigned long irq_flags;
+	uint64_t index;
 	int r;
 
-	write_lock_irqsave(&rdev->fence_drv.lock, irq_flags);
-	r = radeon_scratch_get(rdev, &rdev->fence_drv.scratch_reg);
-	if (r) {
-		dev_err(rdev->dev, "fence failed to get scratch register\n");
-		write_unlock_irqrestore(&rdev->fence_drv.lock, irq_flags);
-		return r;
+	write_lock_irqsave(&rdev->fence_lock, irq_flags);
+	radeon_scratch_free(rdev, rdev->fence_drv[ring].scratch_reg);
+	if (rdev->wb.use_event) {
+		rdev->fence_drv[ring].scratch_reg = 0;
+		index = R600_WB_EVENT_OFFSET + ring * 4;
+	} else {
+		r = radeon_scratch_get(rdev, &rdev->fence_drv[ring].scratch_reg);
+		if (r) {
+			dev_err(rdev->dev, "fence failed to get scratch register\n");
+			write_unlock_irqrestore(&rdev->fence_lock, irq_flags);
+			return r;
+		}
+		index = RADEON_WB_SCRATCH_OFFSET +
+			rdev->fence_drv[ring].scratch_reg -
+			rdev->scratch.reg_base;
 	}
-	radeon_fence_write(rdev, 0);
-	atomic_set(&rdev->fence_drv.seq, 0);
-	INIT_LIST_HEAD(&rdev->fence_drv.created);
-	INIT_LIST_HEAD(&rdev->fence_drv.emited);
-	INIT_LIST_HEAD(&rdev->fence_drv.signaled);
-	init_waitqueue_head(&rdev->fence_drv.queue);
-	rdev->fence_drv.initialized = true;
-	write_unlock_irqrestore(&rdev->fence_drv.lock, irq_flags);
+	rdev->fence_drv[ring].cpu_addr = &rdev->wb.wb[index/4];
+	rdev->fence_drv[ring].gpu_addr = rdev->wb.gpu_addr + index;
+	radeon_fence_write(rdev, atomic_read(&rdev->fence_drv[ring].seq), ring);
+	rdev->fence_drv[ring].initialized = true;
+	DRM_INFO("fence driver on ring %d use gpu addr 0x%08Lx and cpu addr 0x%p\n",
+		 ring, rdev->fence_drv[ring].gpu_addr, rdev->fence_drv[ring].cpu_addr);
+	write_unlock_irqrestore(&rdev->fence_lock, irq_flags);
+	return 0;
+}
+
+static void radeon_fence_driver_init_ring(struct radeon_device *rdev, int ring)
+{
+	rdev->fence_drv[ring].scratch_reg = -1;
+	rdev->fence_drv[ring].cpu_addr = NULL;
+	rdev->fence_drv[ring].gpu_addr = 0;
+	atomic_set(&rdev->fence_drv[ring].seq, 0);
+	INIT_LIST_HEAD(&rdev->fence_drv[ring].created);
+	INIT_LIST_HEAD(&rdev->fence_drv[ring].emitted);
+	INIT_LIST_HEAD(&rdev->fence_drv[ring].signaled);
+	init_waitqueue_head(&rdev->fence_drv[ring].queue);
+	rdev->fence_drv[ring].initialized = false;
+}
+
+int radeon_fence_driver_init(struct radeon_device *rdev)
+{
+	unsigned long irq_flags;
+	int ring;
+
+	write_lock_irqsave(&rdev->fence_lock, irq_flags);
+	for (ring = 0; ring < RADEON_NUM_RINGS; ring++) {
+		radeon_fence_driver_init_ring(rdev, ring);
+	}
+	write_unlock_irqrestore(&rdev->fence_lock, irq_flags);
 	if (radeon_debugfs_fence_init(rdev)) {
 		dev_err(rdev->dev, "fence debugfs file creation failed\n");
 	}
@@ -389,14 +443,18 @@ int radeon_fence_driver_init(struct radeon_device *rdev)
 void radeon_fence_driver_fini(struct radeon_device *rdev)
 {
 	unsigned long irq_flags;
-
-	if (!rdev->fence_drv.initialized)
-		return;
-	wake_up_all(&rdev->fence_drv.queue);
-	write_lock_irqsave(&rdev->fence_drv.lock, irq_flags);
-	radeon_scratch_free(rdev, rdev->fence_drv.scratch_reg);
-	write_unlock_irqrestore(&rdev->fence_drv.lock, irq_flags);
-	rdev->fence_drv.initialized = false;
+	int ring;
+
+	for (ring = 0; ring < RADEON_NUM_RINGS; ring++) {
+		if (!rdev->fence_drv[ring].initialized)
+			continue;
+		radeon_fence_wait_last(rdev, ring);
+		wake_up_all(&rdev->fence_drv[ring].queue);
+		write_lock_irqsave(&rdev->fence_lock, irq_flags);
+		radeon_scratch_free(rdev, rdev->fence_drv[ring].scratch_reg);
+		write_unlock_irqrestore(&rdev->fence_lock, irq_flags);
+		rdev->fence_drv[ring].initialized = false;
+	}
 }
 
 
@@ -410,14 +468,21 @@ static int radeon_debugfs_fence_info(struct seq_file *m, void *data)
 	struct drm_device *dev = node->minor->dev;
 	struct radeon_device *rdev = dev->dev_private;
 	struct radeon_fence *fence;
-
-	seq_printf(m, "Last signaled fence 0x%08X\n",
-		   radeon_fence_read(rdev));
-	if (!list_empty(&rdev->fence_drv.emited)) {
-		   fence = list_entry(rdev->fence_drv.emited.prev,
-				      struct radeon_fence, list);
-		   seq_printf(m, "Last emited fence %p with 0x%08X\n",
-			      fence,  fence->seq);
+	int i;
+
+	for (i = 0; i < RADEON_NUM_RINGS; ++i) {
+		if (!rdev->fence_drv[i].initialized)
+			continue;
+
+		seq_printf(m, "--- ring %d ---\n", i);
+		seq_printf(m, "Last signaled fence 0x%08X\n",
+			   radeon_fence_read(rdev, i));
+		if (!list_empty(&rdev->fence_drv[i].emitted)) {
+			fence = list_entry(rdev->fence_drv[i].emitted.prev,
+					   struct radeon_fence, list);
+			seq_printf(m, "Last emitted fence %p with 0x%08X\n",
+				   fence,  fence->seq);
+		}
 	}
 	return 0;
 }
diff --git a/drivers/gpu/drm/radeon/radeon_gart.c b/drivers/gpu/drm/radeon/radeon_gart.c
index ba7ab79e12c1..010dad8b66ae 100644
--- a/drivers/gpu/drm/radeon/radeon_gart.c
+++ b/drivers/gpu/drm/radeon/radeon_gart.c
@@ -157,9 +157,6 @@ void radeon_gart_unbind(struct radeon_device *rdev, unsigned offset,
 	p = t / (PAGE_SIZE / RADEON_GPU_PAGE_SIZE);
 	for (i = 0; i < pages; i++, p++) {
 		if (rdev->gart.pages[p]) {
-			if (!rdev->gart.ttm_alloced[p])
-				pci_unmap_page(rdev->pdev, rdev->gart.pages_addr[p],
-						PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
 			rdev->gart.pages[p] = NULL;
 			rdev->gart.pages_addr[p] = rdev->dummy_page.addr;
 			page_base = rdev->gart.pages_addr[p];
@@ -191,23 +188,7 @@ int radeon_gart_bind(struct radeon_device *rdev, unsigned offset,
 	p = t / (PAGE_SIZE / RADEON_GPU_PAGE_SIZE);
 
 	for (i = 0; i < pages; i++, p++) {
-		/* we reverted the patch using dma_addr in TTM for now but this
-		 * code stops building on alpha so just comment it out for now */
-		if (0) { /*dma_addr[i] != DMA_ERROR_CODE) */
-			rdev->gart.ttm_alloced[p] = true;
-			rdev->gart.pages_addr[p] = dma_addr[i];
-		} else {
-			/* we need to support large memory configurations */
-			/* assume that unbind have already been call on the range */
-			rdev->gart.pages_addr[p] = pci_map_page(rdev->pdev, pagelist[i],
-							0, PAGE_SIZE,
-							PCI_DMA_BIDIRECTIONAL);
-			if (pci_dma_mapping_error(rdev->pdev, rdev->gart.pages_addr[p])) {
-				/* FIXME: failed to map page (return -ENOMEM?) */
-				radeon_gart_unbind(rdev, offset, pages);
-				return -ENOMEM;
-			}
-		}
+		rdev->gart.pages_addr[p] = dma_addr[i];
 		rdev->gart.pages[p] = pagelist[i];
 		if (rdev->gart.ptr) {
 			page_base = rdev->gart.pages_addr[p];
@@ -274,12 +255,6 @@ int radeon_gart_init(struct radeon_device *rdev)
 		radeon_gart_fini(rdev);
 		return -ENOMEM;
 	}
-	rdev->gart.ttm_alloced = kzalloc(sizeof(bool) *
-					 rdev->gart.num_cpu_pages, GFP_KERNEL);
-	if (rdev->gart.ttm_alloced == NULL) {
-		radeon_gart_fini(rdev);
-		return -ENOMEM;
-	}
 	/* set GART entry to point to the dummy page by default */
 	for (i = 0; i < rdev->gart.num_cpu_pages; i++) {
 		rdev->gart.pages_addr[i] = rdev->dummy_page.addr;
@@ -296,10 +271,404 @@ void radeon_gart_fini(struct radeon_device *rdev)
 	rdev->gart.ready = false;
 	kfree(rdev->gart.pages);
 	kfree(rdev->gart.pages_addr);
-	kfree(rdev->gart.ttm_alloced);
 	rdev->gart.pages = NULL;
 	rdev->gart.pages_addr = NULL;
-	rdev->gart.ttm_alloced = NULL;
 
 	radeon_dummy_page_fini(rdev);
 }
+
+/*
+ * vm helpers
+ *
+ * TODO bind a default page at vm initialization for default address
+ */
+int radeon_vm_manager_init(struct radeon_device *rdev)
+{
+	int r;
+
+	rdev->vm_manager.enabled = false;
+
+	/* mark first vm as always in use, it's the system one */
+	r = radeon_sa_bo_manager_init(rdev, &rdev->vm_manager.sa_manager,
+				      rdev->vm_manager.max_pfn * 8,
+				      RADEON_GEM_DOMAIN_VRAM);
+	if (r) {
+		dev_err(rdev->dev, "failed to allocate vm bo (%dKB)\n",
+			(rdev->vm_manager.max_pfn * 8) >> 10);
+		return r;
+	}
+
+	r = rdev->vm_manager.funcs->init(rdev);
+	if (r == 0)
+		rdev->vm_manager.enabled = true;
+
+	return r;
+}
+
+/* cs mutex must be lock */
+static void radeon_vm_unbind_locked(struct radeon_device *rdev,
+				    struct radeon_vm *vm)
+{
+	struct radeon_bo_va *bo_va;
+
+	if (vm->id == -1) {
+		return;
+	}
+
+	/* wait for vm use to end */
+	if (vm->fence) {
+		radeon_fence_wait(vm->fence, false);
+		radeon_fence_unref(&vm->fence);
+	}
+
+	/* hw unbind */
+	rdev->vm_manager.funcs->unbind(rdev, vm);
+	rdev->vm_manager.use_bitmap &= ~(1 << vm->id);
+	list_del_init(&vm->list);
+	vm->id = -1;
+	radeon_sa_bo_free(rdev, &vm->sa_bo);
+	vm->pt = NULL;
+
+	list_for_each_entry(bo_va, &vm->va, vm_list) {
+		bo_va->valid = false;
+	}
+}
+
+void radeon_vm_manager_fini(struct radeon_device *rdev)
+{
+	if (rdev->vm_manager.sa_manager.bo == NULL)
+		return;
+	radeon_vm_manager_suspend(rdev);
+	rdev->vm_manager.funcs->fini(rdev);
+	radeon_sa_bo_manager_fini(rdev, &rdev->vm_manager.sa_manager);
+	rdev->vm_manager.enabled = false;
+}
+
+int radeon_vm_manager_start(struct radeon_device *rdev)
+{
+	if (rdev->vm_manager.sa_manager.bo == NULL) {
+		return -EINVAL;
+	}
+	return radeon_sa_bo_manager_start(rdev, &rdev->vm_manager.sa_manager);
+}
+
+int radeon_vm_manager_suspend(struct radeon_device *rdev)
+{
+	struct radeon_vm *vm, *tmp;
+
+	radeon_mutex_lock(&rdev->cs_mutex);
+	/* unbind all active vm */
+	list_for_each_entry_safe(vm, tmp, &rdev->vm_manager.lru_vm, list) {
+		radeon_vm_unbind_locked(rdev, vm);
+	}
+	rdev->vm_manager.funcs->fini(rdev);
+	radeon_mutex_unlock(&rdev->cs_mutex);
+	return radeon_sa_bo_manager_suspend(rdev, &rdev->vm_manager.sa_manager);
+}
+
+/* cs mutex must be lock */
+void radeon_vm_unbind(struct radeon_device *rdev, struct radeon_vm *vm)
+{
+	mutex_lock(&vm->mutex);
+	radeon_vm_unbind_locked(rdev, vm);
+	mutex_unlock(&vm->mutex);
+}
+
+/* cs mutex must be lock & vm mutex must be lock */
+int radeon_vm_bind(struct radeon_device *rdev, struct radeon_vm *vm)
+{
+	struct radeon_vm *vm_evict;
+	unsigned i;
+	int id = -1, r;
+
+	if (vm == NULL) {
+		return -EINVAL;
+	}
+
+	if (vm->id != -1) {
+		/* update lru */
+		list_del_init(&vm->list);
+		list_add_tail(&vm->list, &rdev->vm_manager.lru_vm);
+		return 0;
+	}
+
+retry:
+	r = radeon_sa_bo_new(rdev, &rdev->vm_manager.sa_manager, &vm->sa_bo,
+			     RADEON_GPU_PAGE_ALIGN(vm->last_pfn * 8),
+			     RADEON_GPU_PAGE_SIZE);
+	if (r) {
+		if (list_empty(&rdev->vm_manager.lru_vm)) {
+			return r;
+		}
+		vm_evict = list_first_entry(&rdev->vm_manager.lru_vm, struct radeon_vm, list);
+		radeon_vm_unbind(rdev, vm_evict);
+		goto retry;
+	}
+	vm->pt = rdev->vm_manager.sa_manager.cpu_ptr;
+	vm->pt += (vm->sa_bo.offset >> 3);
+	vm->pt_gpu_addr = rdev->vm_manager.sa_manager.gpu_addr;
+	vm->pt_gpu_addr += vm->sa_bo.offset;
+	memset(vm->pt, 0, RADEON_GPU_PAGE_ALIGN(vm->last_pfn * 8));
+
+retry_id:
+	/* search for free vm */
+	for (i = 0; i < rdev->vm_manager.nvm; i++) {
+		if (!(rdev->vm_manager.use_bitmap & (1 << i))) {
+			id = i;
+			break;
+		}
+	}
+	/* evict vm if necessary */
+	if (id == -1) {
+		vm_evict = list_first_entry(&rdev->vm_manager.lru_vm, struct radeon_vm, list);
+		radeon_vm_unbind(rdev, vm_evict);
+		goto retry_id;
+	}
+
+	/* do hw bind */
+	r = rdev->vm_manager.funcs->bind(rdev, vm, id);
+	if (r) {
+		radeon_sa_bo_free(rdev, &vm->sa_bo);
+		return r;
+	}
+	rdev->vm_manager.use_bitmap |= 1 << id;
+	vm->id = id;
+	list_add_tail(&vm->list, &rdev->vm_manager.lru_vm);
+	return radeon_vm_bo_update_pte(rdev, vm, rdev->ib_pool.sa_manager.bo,
+				       &rdev->ib_pool.sa_manager.bo->tbo.mem);
+}
+
+/* object have to be reserved */
+int radeon_vm_bo_add(struct radeon_device *rdev,
+		     struct radeon_vm *vm,
+		     struct radeon_bo *bo,
+		     uint64_t offset,
+		     uint32_t flags)
+{
+	struct radeon_bo_va *bo_va, *tmp;
+	struct list_head *head;
+	uint64_t size = radeon_bo_size(bo), last_offset = 0;
+	unsigned last_pfn;
+
+	bo_va = kzalloc(sizeof(struct radeon_bo_va), GFP_KERNEL);
+	if (bo_va == NULL) {
+		return -ENOMEM;
+	}
+	bo_va->vm = vm;
+	bo_va->bo = bo;
+	bo_va->soffset = offset;
+	bo_va->eoffset = offset + size;
+	bo_va->flags = flags;
+	bo_va->valid = false;
+	INIT_LIST_HEAD(&bo_va->bo_list);
+	INIT_LIST_HEAD(&bo_va->vm_list);
+	/* make sure object fit at this offset */
+	if (bo_va->soffset >= bo_va->eoffset) {
+		kfree(bo_va);
+		return -EINVAL;
+	}
+
+	last_pfn = bo_va->eoffset / RADEON_GPU_PAGE_SIZE;
+	if (last_pfn > rdev->vm_manager.max_pfn) {
+		kfree(bo_va);
+		dev_err(rdev->dev, "va above limit (0x%08X > 0x%08X)\n",
+			last_pfn, rdev->vm_manager.max_pfn);
+		return -EINVAL;
+	}
+
+	mutex_lock(&vm->mutex);
+	if (last_pfn > vm->last_pfn) {
+		/* grow va space 32M by 32M */
+		unsigned align = ((32 << 20) >> 12) - 1;
+		radeon_mutex_lock(&rdev->cs_mutex);
+		radeon_vm_unbind_locked(rdev, vm);
+		radeon_mutex_unlock(&rdev->cs_mutex);
+		vm->last_pfn = (last_pfn + align) & ~align;
+	}
+	head = &vm->va;
+	last_offset = 0;
+	list_for_each_entry(tmp, &vm->va, vm_list) {
+		if (bo_va->soffset >= last_offset && bo_va->eoffset < tmp->soffset) {
+			/* bo can be added before this one */
+			break;
+		}
+		if (bo_va->soffset >= tmp->soffset && bo_va->soffset < tmp->eoffset) {
+			/* bo and tmp overlap, invalid offset */
+			dev_err(rdev->dev, "bo %p va 0x%08X conflict with (bo %p 0x%08X 0x%08X)\n",
+				bo, (unsigned)bo_va->soffset, tmp->bo,
+				(unsigned)tmp->soffset, (unsigned)tmp->eoffset);
+			kfree(bo_va);
+			mutex_unlock(&vm->mutex);
+			return -EINVAL;
+		}
+		last_offset = tmp->eoffset;
+		head = &tmp->vm_list;
+	}
+	list_add(&bo_va->vm_list, head);
+	list_add_tail(&bo_va->bo_list, &bo->va);
+	mutex_unlock(&vm->mutex);
+	return 0;
+}
+
+static u64 radeon_vm_get_addr(struct radeon_device *rdev,
+			      struct ttm_mem_reg *mem,
+			      unsigned pfn)
+{
+	u64 addr = 0;
+
+	switch (mem->mem_type) {
+	case TTM_PL_VRAM:
+		addr = (mem->start << PAGE_SHIFT);
+		addr += pfn * RADEON_GPU_PAGE_SIZE;
+		addr += rdev->vm_manager.vram_base_offset;
+		break;
+	case TTM_PL_TT:
+		/* offset inside page table */
+		addr = mem->start << PAGE_SHIFT;
+		addr += pfn * RADEON_GPU_PAGE_SIZE;
+		addr = addr >> PAGE_SHIFT;
+		/* page table offset */
+		addr = rdev->gart.pages_addr[addr];
+		/* in case cpu page size != gpu page size*/
+		addr += (pfn * RADEON_GPU_PAGE_SIZE) & (~PAGE_MASK);
+		break;
+	default:
+		break;
+	}
+	return addr;
+}
+
+/* object have to be reserved & cs mutex took & vm mutex took */
+int radeon_vm_bo_update_pte(struct radeon_device *rdev,
+			    struct radeon_vm *vm,
+			    struct radeon_bo *bo,
+			    struct ttm_mem_reg *mem)
+{
+	struct radeon_bo_va *bo_va;
+	unsigned ngpu_pages, i;
+	uint64_t addr = 0, pfn;
+	uint32_t flags;
+
+	/* nothing to do if vm isn't bound */
+	if (vm->id == -1)
+		return 0;;
+
+	bo_va = radeon_bo_va(bo, vm);
+	if (bo_va == NULL) {
+		dev_err(rdev->dev, "bo %p not in vm %p\n", bo, vm);
+		return -EINVAL;
+	}
+
+	if (bo_va->valid)
+		return 0;
+
+	ngpu_pages = radeon_bo_ngpu_pages(bo);
+	bo_va->flags &= ~RADEON_VM_PAGE_VALID;
+	bo_va->flags &= ~RADEON_VM_PAGE_SYSTEM;
+	if (mem) {
+		if (mem->mem_type != TTM_PL_SYSTEM) {
+			bo_va->flags |= RADEON_VM_PAGE_VALID;
+			bo_va->valid = true;
+		}
+		if (mem->mem_type == TTM_PL_TT) {
+			bo_va->flags |= RADEON_VM_PAGE_SYSTEM;
+		}
+	}
+	pfn = bo_va->soffset / RADEON_GPU_PAGE_SIZE;
+	flags = rdev->vm_manager.funcs->page_flags(rdev, bo_va->vm, bo_va->flags);
+	for (i = 0, addr = 0; i < ngpu_pages; i++) {
+		if (mem && bo_va->valid) {
+			addr = radeon_vm_get_addr(rdev, mem, i);
+		}
+		rdev->vm_manager.funcs->set_page(rdev, bo_va->vm, i + pfn, addr, flags);
+	}
+	rdev->vm_manager.funcs->tlb_flush(rdev, bo_va->vm);
+	return 0;
+}
+
+/* object have to be reserved */
+int radeon_vm_bo_rmv(struct radeon_device *rdev,
+		     struct radeon_vm *vm,
+		     struct radeon_bo *bo)
+{
+	struct radeon_bo_va *bo_va;
+
+	bo_va = radeon_bo_va(bo, vm);
+	if (bo_va == NULL)
+		return 0;
+
+	list_del(&bo_va->bo_list);
+	mutex_lock(&vm->mutex);
+	radeon_mutex_lock(&rdev->cs_mutex);
+	radeon_vm_bo_update_pte(rdev, vm, bo, NULL);
+	radeon_mutex_unlock(&rdev->cs_mutex);
+	list_del(&bo_va->vm_list);
+	mutex_unlock(&vm->mutex);
+
+	kfree(bo_va);
+	return 0;
+}
+
+void radeon_vm_bo_invalidate(struct radeon_device *rdev,
+			     struct radeon_bo *bo)
+{
+	struct radeon_bo_va *bo_va;
+
+	BUG_ON(!atomic_read(&bo->tbo.reserved));
+	list_for_each_entry(bo_va, &bo->va, bo_list) {
+		bo_va->valid = false;
+	}
+}
+
+int radeon_vm_init(struct radeon_device *rdev, struct radeon_vm *vm)
+{
+	int r;
+
+	vm->id = -1;
+	vm->fence = NULL;
+	mutex_init(&vm->mutex);
+	INIT_LIST_HEAD(&vm->list);
+	INIT_LIST_HEAD(&vm->va);
+	vm->last_pfn = 0;
+	/* map the ib pool buffer at 0 in virtual address space, set
+	 * read only
+	 */
+	r = radeon_vm_bo_add(rdev, vm, rdev->ib_pool.sa_manager.bo, 0,
+			     RADEON_VM_PAGE_READABLE | RADEON_VM_PAGE_SNOOPED);
+	return r;
+}
+
+void radeon_vm_fini(struct radeon_device *rdev, struct radeon_vm *vm)
+{
+	struct radeon_bo_va *bo_va, *tmp;
+	int r;
+
+	mutex_lock(&vm->mutex);
+
+	radeon_mutex_lock(&rdev->cs_mutex);
+	radeon_vm_unbind_locked(rdev, vm);
+	radeon_mutex_unlock(&rdev->cs_mutex);
+
+	/* remove all bo */
+	r = radeon_bo_reserve(rdev->ib_pool.sa_manager.bo, false);
+	if (!r) {
+		bo_va = radeon_bo_va(rdev->ib_pool.sa_manager.bo, vm);
+		list_del_init(&bo_va->bo_list);
+		list_del_init(&bo_va->vm_list);
+		radeon_bo_unreserve(rdev->ib_pool.sa_manager.bo);
+		kfree(bo_va);
+	}
+	if (!list_empty(&vm->va)) {
+		dev_err(rdev->dev, "still active bo inside vm\n");
+	}
+	list_for_each_entry_safe(bo_va, tmp, &vm->va, vm_list) {
+		list_del_init(&bo_va->vm_list);
+		r = radeon_bo_reserve(bo_va->bo, false);
+		if (!r) {
+			list_del_init(&bo_va->bo_list);
+			radeon_bo_unreserve(bo_va->bo);
+			kfree(bo_va);
+		}
+	}
+	mutex_unlock(&vm->mutex);
+}
diff --git a/drivers/gpu/drm/radeon/radeon_gem.c b/drivers/gpu/drm/radeon/radeon_gem.c
index aa1ca2dea42f..7337850af2fa 100644
--- a/drivers/gpu/drm/radeon/radeon_gem.c
+++ b/drivers/gpu/drm/radeon/radeon_gem.c
@@ -142,6 +142,44 @@ void radeon_gem_fini(struct radeon_device *rdev)
 	radeon_bo_force_delete(rdev);
 }
 
+/*
+ * Call from drm_gem_handle_create which appear in both new and open ioctl
+ * case.
+ */
+int radeon_gem_object_open(struct drm_gem_object *obj, struct drm_file *file_priv)
+{
+	return 0;
+}
+
+void radeon_gem_object_close(struct drm_gem_object *obj,
+			     struct drm_file *file_priv)
+{
+	struct radeon_bo *rbo = gem_to_radeon_bo(obj);
+	struct radeon_device *rdev = rbo->rdev;
+	struct radeon_fpriv *fpriv = file_priv->driver_priv;
+	struct radeon_vm *vm = &fpriv->vm;
+	struct radeon_bo_va *bo_va, *tmp;
+
+	if (rdev->family < CHIP_CAYMAN) {
+		return;
+	}
+
+	if (radeon_bo_reserve(rbo, false)) {
+		return;
+	}
+	list_for_each_entry_safe(bo_va, tmp, &rbo->va, bo_list) {
+		if (bo_va->vm == vm) {
+			/* remove from this vm address space */
+			mutex_lock(&vm->mutex);
+			list_del(&bo_va->vm_list);
+			mutex_unlock(&vm->mutex);
+			list_del(&bo_va->bo_list);
+			kfree(bo_va);
+		}
+	}
+	radeon_bo_unreserve(rbo);
+}
+
 
 /*
  * GEM ioctls.
@@ -152,6 +190,7 @@ int radeon_gem_info_ioctl(struct drm_device *dev, void *data,
 	struct radeon_device *rdev = dev->dev_private;
 	struct drm_radeon_gem_info *args = data;
 	struct ttm_mem_type_manager *man;
+	unsigned i;
 
 	man = &rdev->mman.bdev.man[TTM_PL_VRAM];
 
@@ -160,8 +199,9 @@ int radeon_gem_info_ioctl(struct drm_device *dev, void *data,
 	if (rdev->stollen_vga_memory)
 		args->vram_visible -= radeon_bo_size(rdev->stollen_vga_memory);
 	args->vram_visible -= radeon_fbdev_total_size(rdev);
-	args->gart_size = rdev->mc.gtt_size - rdev->cp.ring_size - 4096 -
-		RADEON_IB_POOL_SIZE*64*1024;
+	args->gart_size = rdev->mc.gtt_size - 4096 - RADEON_IB_POOL_SIZE*64*1024;
+	for(i = 0; i < RADEON_NUM_RINGS; ++i)
+		args->gart_size -= rdev->ring[i].ring_size;
 	return 0;
 }
 
@@ -352,6 +392,109 @@ out:
 	return r;
 }
 
+int radeon_gem_va_ioctl(struct drm_device *dev, void *data,
+			  struct drm_file *filp)
+{
+	struct drm_radeon_gem_va *args = data;
+	struct drm_gem_object *gobj;
+	struct radeon_device *rdev = dev->dev_private;
+	struct radeon_fpriv *fpriv = filp->driver_priv;
+	struct radeon_bo *rbo;
+	struct radeon_bo_va *bo_va;
+	u32 invalid_flags;
+	int r = 0;
+
+	if (!rdev->vm_manager.enabled) {
+		args->operation = RADEON_VA_RESULT_ERROR;
+		return -ENOTTY;
+	}
+
+	/* !! DONT REMOVE !!
+	 * We don't support vm_id yet, to be sure we don't have have broken
+	 * userspace, reject anyone trying to use non 0 value thus moving
+	 * forward we can use those fields without breaking existant userspace
+	 */
+	if (args->vm_id) {
+		args->operation = RADEON_VA_RESULT_ERROR;
+		return -EINVAL;
+	}
+
+	if (args->offset < RADEON_VA_RESERVED_SIZE) {
+		dev_err(&dev->pdev->dev,
+			"offset 0x%lX is in reserved area 0x%X\n",
+			(unsigned long)args->offset,
+			RADEON_VA_RESERVED_SIZE);
+		args->operation = RADEON_VA_RESULT_ERROR;
+		return -EINVAL;
+	}
+
+	/* don't remove, we need to enforce userspace to set the snooped flag
+	 * otherwise we will endup with broken userspace and we won't be able
+	 * to enable this feature without adding new interface
+	 */
+	invalid_flags = RADEON_VM_PAGE_VALID | RADEON_VM_PAGE_SYSTEM;
+	if ((args->flags & invalid_flags)) {
+		dev_err(&dev->pdev->dev, "invalid flags 0x%08X vs 0x%08X\n",
+			args->flags, invalid_flags);
+		args->operation = RADEON_VA_RESULT_ERROR;
+		return -EINVAL;
+	}
+	if (!(args->flags & RADEON_VM_PAGE_SNOOPED)) {
+		dev_err(&dev->pdev->dev, "only supported snooped mapping for now\n");
+		args->operation = RADEON_VA_RESULT_ERROR;
+		return -EINVAL;
+	}
+
+	switch (args->operation) {
+	case RADEON_VA_MAP:
+	case RADEON_VA_UNMAP:
+		break;
+	default:
+		dev_err(&dev->pdev->dev, "unsupported operation %d\n",
+			args->operation);
+		args->operation = RADEON_VA_RESULT_ERROR;
+		return -EINVAL;
+	}
+
+	gobj = drm_gem_object_lookup(dev, filp, args->handle);
+	if (gobj == NULL) {
+		args->operation = RADEON_VA_RESULT_ERROR;
+		return -ENOENT;
+	}
+	rbo = gem_to_radeon_bo(gobj);
+	r = radeon_bo_reserve(rbo, false);
+	if (r) {
+		args->operation = RADEON_VA_RESULT_ERROR;
+		drm_gem_object_unreference_unlocked(gobj);
+		return r;
+	}
+	switch (args->operation) {
+	case RADEON_VA_MAP:
+		bo_va = radeon_bo_va(rbo, &fpriv->vm);
+		if (bo_va) {
+			args->operation = RADEON_VA_RESULT_VA_EXIST;
+			args->offset = bo_va->soffset;
+			goto out;
+		}
+		r = radeon_vm_bo_add(rdev, &fpriv->vm, rbo,
+				     args->offset, args->flags);
+		break;
+	case RADEON_VA_UNMAP:
+		r = radeon_vm_bo_rmv(rdev, &fpriv->vm, rbo);
+		break;
+	default:
+		break;
+	}
+	args->operation = RADEON_VA_RESULT_OK;
+	if (r) {
+		args->operation = RADEON_VA_RESULT_ERROR;
+	}
+out:
+	radeon_bo_unreserve(rbo);
+	drm_gem_object_unreference_unlocked(gobj);
+	return r;
+}
+
 int radeon_mode_dumb_create(struct drm_file *file_priv,
 			    struct drm_device *dev,
 			    struct drm_mode_create_dumb *args)
diff --git a/drivers/gpu/drm/radeon/radeon_irq_kms.c b/drivers/gpu/drm/radeon/radeon_irq_kms.c
index 8f86aeb26693..be38921bf761 100644
--- a/drivers/gpu/drm/radeon/radeon_irq_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_irq_kms.c
@@ -65,7 +65,8 @@ void radeon_driver_irq_preinstall_kms(struct drm_device *dev)
 	unsigned i;
 
 	/* Disable *all* interrupts */
-	rdev->irq.sw_int = false;
+	for (i = 0; i < RADEON_NUM_RINGS; i++)
+		rdev->irq.sw_int[i] = false;
 	rdev->irq.gui_idle = false;
 	for (i = 0; i < RADEON_MAX_HPD_PINS; i++)
 		rdev->irq.hpd[i] = false;
@@ -81,9 +82,11 @@ void radeon_driver_irq_preinstall_kms(struct drm_device *dev)
 int radeon_driver_irq_postinstall_kms(struct drm_device *dev)
 {
 	struct radeon_device *rdev = dev->dev_private;
+	unsigned i;
 
 	dev->max_vblank_count = 0x001fffff;
-	rdev->irq.sw_int = true;
+	for (i = 0; i < RADEON_NUM_RINGS; i++)
+		rdev->irq.sw_int[i] = true;
 	radeon_irq_set(rdev);
 	return 0;
 }
@@ -97,7 +100,8 @@ void radeon_driver_irq_uninstall_kms(struct drm_device *dev)
 		return;
 	}
 	/* Disable *all* interrupts */
-	rdev->irq.sw_int = false;
+	for (i = 0; i < RADEON_NUM_RINGS; i++)
+		rdev->irq.sw_int[i] = false;
 	rdev->irq.gui_idle = false;
 	for (i = 0; i < RADEON_MAX_HPD_PINS; i++)
 		rdev->irq.hpd[i] = false;
@@ -194,26 +198,26 @@ void radeon_irq_kms_fini(struct radeon_device *rdev)
 	flush_work_sync(&rdev->hotplug_work);
 }
 
-void radeon_irq_kms_sw_irq_get(struct radeon_device *rdev)
+void radeon_irq_kms_sw_irq_get(struct radeon_device *rdev, int ring)
 {
 	unsigned long irqflags;
 
 	spin_lock_irqsave(&rdev->irq.sw_lock, irqflags);
-	if (rdev->ddev->irq_enabled && (++rdev->irq.sw_refcount == 1)) {
-		rdev->irq.sw_int = true;
+	if (rdev->ddev->irq_enabled && (++rdev->irq.sw_refcount[ring] == 1)) {
+		rdev->irq.sw_int[ring] = true;
 		radeon_irq_set(rdev);
 	}
 	spin_unlock_irqrestore(&rdev->irq.sw_lock, irqflags);
 }
 
-void radeon_irq_kms_sw_irq_put(struct radeon_device *rdev)
+void radeon_irq_kms_sw_irq_put(struct radeon_device *rdev, int ring)
 {
 	unsigned long irqflags;
 
 	spin_lock_irqsave(&rdev->irq.sw_lock, irqflags);
-	BUG_ON(rdev->ddev->irq_enabled && rdev->irq.sw_refcount <= 0);
-	if (rdev->ddev->irq_enabled && (--rdev->irq.sw_refcount == 0)) {
-		rdev->irq.sw_int = false;
+	BUG_ON(rdev->ddev->irq_enabled && rdev->irq.sw_refcount[ring] <= 0);
+	if (rdev->ddev->irq_enabled && (--rdev->irq.sw_refcount[ring] == 0)) {
+		rdev->irq.sw_int[ring] = false;
 		radeon_irq_set(rdev);
 	}
 	spin_unlock_irqrestore(&rdev->irq.sw_lock, irqflags);
diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index be2c1224e68a..d3352889a870 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -250,6 +250,18 @@ int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
 			return -EINVAL;
 		}
 		break;
+	case RADEON_INFO_VA_START:
+		/* this is where we report if vm is supported or not */
+		if (rdev->family < CHIP_CAYMAN)
+			return -EINVAL;
+		value = RADEON_VA_RESERVED_SIZE;
+		break;
+	case RADEON_INFO_IB_VM_MAX_SIZE:
+		/* this is where we report if vm is supported or not */
+		if (rdev->family < CHIP_CAYMAN)
+			return -EINVAL;
+		value = RADEON_IB_VM_MAX_SIZE;
+		break;
 	default:
 		DRM_DEBUG_KMS("Invalid request %d\n", info->request);
 		return -EINVAL;
@@ -270,7 +282,6 @@ int radeon_driver_firstopen_kms(struct drm_device *dev)
 	return 0;
 }
 
-
 void radeon_driver_lastclose_kms(struct drm_device *dev)
 {
 	vga_switcheroo_process_delayed_switch();
@@ -278,12 +289,45 @@ void radeon_driver_lastclose_kms(struct drm_device *dev)
 
 int radeon_driver_open_kms(struct drm_device *dev, struct drm_file *file_priv)
 {
+	struct radeon_device *rdev = dev->dev_private;
+
+	file_priv->driver_priv = NULL;
+
+	/* new gpu have virtual address space support */
+	if (rdev->family >= CHIP_CAYMAN) {
+		struct radeon_fpriv *fpriv;
+		int r;
+
+		fpriv = kzalloc(sizeof(*fpriv), GFP_KERNEL);
+		if (unlikely(!fpriv)) {
+			return -ENOMEM;
+		}
+
+		r = radeon_vm_init(rdev, &fpriv->vm);
+		if (r) {
+			radeon_vm_fini(rdev, &fpriv->vm);
+			kfree(fpriv);
+			return r;
+		}
+
+		file_priv->driver_priv = fpriv;
+	}
 	return 0;
 }
 
 void radeon_driver_postclose_kms(struct drm_device *dev,
 				 struct drm_file *file_priv)
 {
+	struct radeon_device *rdev = dev->dev_private;
+
+	/* new gpu have virtual address space support */
+	if (rdev->family >= CHIP_CAYMAN && file_priv->driver_priv) {
+		struct radeon_fpriv *fpriv = file_priv->driver_priv;
+
+		radeon_vm_fini(rdev, &fpriv->vm);
+		kfree(fpriv);
+		file_priv->driver_priv = NULL;
+	}
 }
 
 void radeon_driver_preclose_kms(struct drm_device *dev,
@@ -451,5 +495,6 @@ struct drm_ioctl_desc radeon_ioctls_kms[] = {
 	DRM_IOCTL_DEF_DRV(RADEON_GEM_SET_TILING, radeon_gem_set_tiling_ioctl, DRM_AUTH|DRM_UNLOCKED),
 	DRM_IOCTL_DEF_DRV(RADEON_GEM_GET_TILING, radeon_gem_get_tiling_ioctl, DRM_AUTH|DRM_UNLOCKED),
 	DRM_IOCTL_DEF_DRV(RADEON_GEM_BUSY, radeon_gem_busy_ioctl, DRM_AUTH|DRM_UNLOCKED),
+	DRM_IOCTL_DEF_DRV(RADEON_GEM_VA, radeon_gem_va_ioctl, DRM_AUTH|DRM_UNLOCKED),
 };
 int radeon_max_kms_ioctl = DRM_ARRAY_SIZE(radeon_ioctls_kms);
diff --git a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
index daadf2111040..25a19c483075 100644
--- a/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
+++ b/drivers/gpu/drm/radeon/radeon_legacy_crtc.c
@@ -437,7 +437,7 @@ int radeon_crtc_do_set_base(struct drm_crtc *crtc,
 
 	crtc_offset_cntl = 0;
 
-	pitch_pixels = target_fb->pitch / (target_fb->bits_per_pixel / 8);
+	pitch_pixels = target_fb->pitches[0] / (target_fb->bits_per_pixel / 8);
 	crtc_pitch  = (((pitch_pixels * target_fb->bits_per_pixel) +
 			((target_fb->bits_per_pixel * 8) - 1)) /
 		       (target_fb->bits_per_pixel * 8));
diff --git a/drivers/gpu/drm/radeon/radeon_mode.h b/drivers/gpu/drm/radeon/radeon_mode.h
index 2c2e75ef8a37..08ff857c8fd6 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -643,7 +643,7 @@ extern void radeon_crtc_fb_gamma_get(struct drm_crtc *crtc, u16 *red, u16 *green
 				     u16 *blue, int regno);
 void radeon_framebuffer_init(struct drm_device *dev,
 			     struct radeon_framebuffer *rfb,
-			     struct drm_mode_fb_cmd *mode_cmd,
+			     struct drm_mode_fb_cmd2 *mode_cmd,
 			     struct drm_gem_object *obj);
 
 int radeonfb_remove(struct drm_device *dev, struct drm_framebuffer *fb);
diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c
index 1c851521f458..d45df1763598 100644
--- a/drivers/gpu/drm/radeon/radeon_object.c
+++ b/drivers/gpu/drm/radeon/radeon_object.c
@@ -46,6 +46,20 @@ static void radeon_bo_clear_surface_reg(struct radeon_bo *bo);
  * function are calling it.
  */
 
+void radeon_bo_clear_va(struct radeon_bo *bo)
+{
+	struct radeon_bo_va *bo_va, *tmp;
+
+	list_for_each_entry_safe(bo_va, tmp, &bo->va, bo_list) {
+		/* remove from all vm address space */
+		mutex_lock(&bo_va->vm->mutex);
+		list_del(&bo_va->vm_list);
+		mutex_unlock(&bo_va->vm->mutex);
+		list_del(&bo_va->bo_list);
+		kfree(bo_va);
+	}
+}
+
 static void radeon_ttm_bo_destroy(struct ttm_buffer_object *tbo)
 {
 	struct radeon_bo *bo;
@@ -55,6 +69,7 @@ static void radeon_ttm_bo_destroy(struct ttm_buffer_object *tbo)
 	list_del_init(&bo->list);
 	mutex_unlock(&bo->rdev->gem.mutex);
 	radeon_bo_clear_surface_reg(bo);
+	radeon_bo_clear_va(bo);
 	drm_gem_object_release(&bo->gem_base);
 	kfree(bo);
 }
@@ -95,6 +110,7 @@ int radeon_bo_create(struct radeon_device *rdev,
 	enum ttm_bo_type type;
 	unsigned long page_align = roundup(byte_align, PAGE_SIZE) >> PAGE_SHIFT;
 	unsigned long max_size = 0;
+	size_t acc_size;
 	int r;
 
 	size = ALIGN(size, PAGE_SIZE);
@@ -117,6 +133,9 @@ int radeon_bo_create(struct radeon_device *rdev,
 		return -ENOMEM;
 	}
 
+	acc_size = ttm_bo_dma_acc_size(&rdev->mman.bdev, size,
+				       sizeof(struct radeon_bo));
+
 retry:
 	bo = kzalloc(sizeof(struct radeon_bo), GFP_KERNEL);
 	if (bo == NULL)
@@ -130,12 +149,13 @@ retry:
 	bo->gem_base.driver_private = NULL;
 	bo->surface_reg = -1;
 	INIT_LIST_HEAD(&bo->list);
+	INIT_LIST_HEAD(&bo->va);
 	radeon_ttm_placement_from_domain(bo, domain);
 	/* Kernel allocation are uninterruptible */
 	mutex_lock(&rdev->vram_mutex);
 	r = ttm_bo_init(&rdev->mman.bdev, &bo->tbo, size, type,
-			&bo->placement, page_align, 0, !kernel, NULL, size,
-			&radeon_ttm_bo_destroy);
+			&bo->placement, page_align, 0, !kernel, NULL,
+			acc_size, &radeon_ttm_bo_destroy);
 	mutex_unlock(&rdev->vram_mutex);
 	if (unlikely(r != 0)) {
 		if (r != -ERESTARTSYS) {
@@ -483,6 +503,7 @@ void radeon_bo_move_notify(struct ttm_buffer_object *bo,
 		return;
 	rbo = container_of(bo, struct radeon_bo, tbo);
 	radeon_bo_check_tiling(rbo, 0, 1);
+	radeon_vm_bo_invalidate(rbo->rdev, rbo);
 }
 
 int radeon_bo_fault_reserve_notify(struct ttm_buffer_object *bo)
@@ -556,3 +577,16 @@ int radeon_bo_reserve(struct radeon_bo *bo, bool no_wait)
 	}
 	return 0;
 }
+
+/* object have to be reserved */
+struct radeon_bo_va *radeon_bo_va(struct radeon_bo *rbo, struct radeon_vm *vm)
+{
+	struct radeon_bo_va *bo_va;
+
+	list_for_each_entry(bo_va, &rbo->va, bo_list) {
+		if (bo_va->vm == vm) {
+			return bo_va;
+		}
+	}
+	return NULL;
+}
diff --git a/drivers/gpu/drm/radeon/radeon_object.h b/drivers/gpu/drm/radeon/radeon_object.h
index b07f0f9b8627..cde430308870 100644
--- a/drivers/gpu/drm/radeon/radeon_object.h
+++ b/drivers/gpu/drm/radeon/radeon_object.h
@@ -83,6 +83,16 @@ static inline bool radeon_bo_is_reserved(struct radeon_bo *bo)
 	return !!atomic_read(&bo->tbo.reserved);
 }
 
+static inline unsigned radeon_bo_ngpu_pages(struct radeon_bo *bo)
+{
+	return (bo->tbo.num_pages << PAGE_SHIFT) / RADEON_GPU_PAGE_SIZE;
+}
+
+static inline unsigned radeon_bo_gpu_page_alignment(struct radeon_bo *bo)
+{
+	return (bo->tbo.mem.page_alignment << PAGE_SHIFT) / RADEON_GPU_PAGE_SIZE;
+}
+
 /**
  * radeon_bo_mmap_offset - return mmap offset of bo
  * @bo:	radeon object for which we query the offset
@@ -128,4 +138,26 @@ extern void radeon_bo_move_notify(struct ttm_buffer_object *bo,
 					struct ttm_mem_reg *mem);
 extern int radeon_bo_fault_reserve_notify(struct ttm_buffer_object *bo);
 extern int radeon_bo_get_surface_reg(struct radeon_bo *bo);
+extern struct radeon_bo_va *radeon_bo_va(struct radeon_bo *rbo,
+					 struct radeon_vm *vm);
+
+/*
+ * sub allocation
+ */
+extern int radeon_sa_bo_manager_init(struct radeon_device *rdev,
+				     struct radeon_sa_manager *sa_manager,
+				     unsigned size, u32 domain);
+extern void radeon_sa_bo_manager_fini(struct radeon_device *rdev,
+				      struct radeon_sa_manager *sa_manager);
+extern int radeon_sa_bo_manager_start(struct radeon_device *rdev,
+				      struct radeon_sa_manager *sa_manager);
+extern int radeon_sa_bo_manager_suspend(struct radeon_device *rdev,
+					struct radeon_sa_manager *sa_manager);
+extern int radeon_sa_bo_new(struct radeon_device *rdev,
+			    struct radeon_sa_manager *sa_manager,
+			    struct radeon_sa_bo *sa_bo,
+			    unsigned size, unsigned align);
+extern void radeon_sa_bo_free(struct radeon_device *rdev,
+			      struct radeon_sa_bo *sa_bo);
+
 #endif
diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c
index 78a665bd9519..095148e29a1f 100644
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -252,7 +252,10 @@ static void radeon_pm_set_clocks(struct radeon_device *rdev)
 
 	mutex_lock(&rdev->ddev->struct_mutex);
 	mutex_lock(&rdev->vram_mutex);
-	mutex_lock(&rdev->cp.mutex);
+	for (i = 0; i < RADEON_NUM_RINGS; ++i) {
+		if (rdev->ring[i].ring_obj)
+			mutex_lock(&rdev->ring[i].mutex);
+	}
 
 	/* gui idle int has issues on older chips it seems */
 	if (rdev->family >= CHIP_R600) {
@@ -268,12 +271,13 @@ static void radeon_pm_set_clocks(struct radeon_device *rdev)
 			radeon_irq_set(rdev);
 		}
 	} else {
-		if (rdev->cp.ready) {
+		struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
+		if (ring->ready) {
 			struct radeon_fence *fence;
-			radeon_ring_alloc(rdev, 64);
-			radeon_fence_create(rdev, &fence);
+			radeon_ring_alloc(rdev, ring, 64);
+			radeon_fence_create(rdev, &fence, radeon_ring_index(rdev, ring));
 			radeon_fence_emit(rdev, fence);
-			radeon_ring_commit(rdev);
+			radeon_ring_commit(rdev, ring);
 			radeon_fence_wait(fence, false);
 			radeon_fence_unref(&fence);
 		}
@@ -307,7 +311,10 @@ static void radeon_pm_set_clocks(struct radeon_device *rdev)
 
 	rdev->pm.dynpm_planned_action = DYNPM_ACTION_NONE;
 
-	mutex_unlock(&rdev->cp.mutex);
+	for (i = 0; i < RADEON_NUM_RINGS; ++i) {
+		if (rdev->ring[i].ring_obj)
+			mutex_unlock(&rdev->ring[i].mutex);
+	}
 	mutex_unlock(&rdev->vram_mutex);
 	mutex_unlock(&rdev->ddev->struct_mutex);
 }
@@ -795,19 +802,14 @@ static void radeon_dynpm_idle_work_handler(struct work_struct *work)
 	resched = ttm_bo_lock_delayed_workqueue(&rdev->mman.bdev);
 	mutex_lock(&rdev->pm.mutex);
 	if (rdev->pm.dynpm_state == DYNPM_STATE_ACTIVE) {
-		unsigned long irq_flags;
 		int not_processed = 0;
+		int i;
 
-		read_lock_irqsave(&rdev->fence_drv.lock, irq_flags);
-		if (!list_empty(&rdev->fence_drv.emited)) {
-			struct list_head *ptr;
-			list_for_each(ptr, &rdev->fence_drv.emited) {
-				/* count up to 3, that's enought info */
-				if (++not_processed >= 3)
-					break;
-			}
+		for (i = 0; i < RADEON_NUM_RINGS; ++i) {
+			not_processed += radeon_fence_count_emitted(rdev, i);
+			if (not_processed >= 3)
+				break;
 		}
-		read_unlock_irqrestore(&rdev->fence_drv.lock, irq_flags);
 
 		if (not_processed >= 3) { /* should upclock */
 			if (rdev->pm.dynpm_planned_action == DYNPM_ACTION_DOWNCLOCK) {
diff --git a/drivers/gpu/drm/radeon/radeon_ring.c b/drivers/gpu/drm/radeon/radeon_ring.c
index 49d58202202c..e8bc70933d1b 100644
--- a/drivers/gpu/drm/radeon/radeon_ring.c
+++ b/drivers/gpu/drm/radeon/radeon_ring.c
@@ -34,6 +34,7 @@
 #include "atom.h"
 
 int radeon_debugfs_ib_init(struct radeon_device *rdev);
+int radeon_debugfs_ring_init(struct radeon_device *rdev);
 
 u32 radeon_get_ib_value(struct radeon_cs_parser *p, int idx)
 {
@@ -60,105 +61,106 @@ u32 radeon_get_ib_value(struct radeon_cs_parser *p, int idx)
 	return idx_value;
 }
 
-void radeon_ring_write(struct radeon_device *rdev, uint32_t v)
+void radeon_ring_write(struct radeon_ring *ring, uint32_t v)
 {
 #if DRM_DEBUG_CODE
-	if (rdev->cp.count_dw <= 0) {
+	if (ring->count_dw <= 0) {
 		DRM_ERROR("radeon: writting more dword to ring than expected !\n");
 	}
 #endif
-	rdev->cp.ring[rdev->cp.wptr++] = v;
-	rdev->cp.wptr &= rdev->cp.ptr_mask;
-	rdev->cp.count_dw--;
-	rdev->cp.ring_free_dw--;
+	ring->ring[ring->wptr++] = v;
+	ring->wptr &= ring->ptr_mask;
+	ring->count_dw--;
+	ring->ring_free_dw--;
 }
 
-void radeon_ib_bogus_cleanup(struct radeon_device *rdev)
-{
-	struct radeon_ib *ib, *n;
-
-	list_for_each_entry_safe(ib, n, &rdev->ib_pool.bogus_ib, list) {
-		list_del(&ib->list);
-		vfree(ib->ptr);
-		kfree(ib);
-	}
-}
-
-void radeon_ib_bogus_add(struct radeon_device *rdev, struct radeon_ib *ib)
+/*
+ * IB.
+ */
+bool radeon_ib_try_free(struct radeon_device *rdev, struct radeon_ib *ib)
 {
-	struct radeon_ib *bib;
-
-	bib = kmalloc(sizeof(*bib), GFP_KERNEL);
-	if (bib == NULL)
-		return;
-	bib->ptr = vmalloc(ib->length_dw * 4);
-	if (bib->ptr == NULL) {
-		kfree(bib);
-		return;
+	bool done = false;
+
+	/* only free ib which have been emited */
+	if (ib->fence && ib->fence->emitted) {
+		if (radeon_fence_signaled(ib->fence)) {
+			radeon_fence_unref(&ib->fence);
+			radeon_sa_bo_free(rdev, &ib->sa_bo);
+			done = true;
+		}
 	}
-	memcpy(bib->ptr, ib->ptr, ib->length_dw * 4);
-	bib->length_dw = ib->length_dw;
-	mutex_lock(&rdev->ib_pool.mutex);
-	list_add_tail(&bib->list, &rdev->ib_pool.bogus_ib);
-	mutex_unlock(&rdev->ib_pool.mutex);
+	return done;
 }
 
-/*
- * IB.
- */
-int radeon_ib_get(struct radeon_device *rdev, struct radeon_ib **ib)
+int radeon_ib_get(struct radeon_device *rdev, int ring,
+		  struct radeon_ib **ib, unsigned size)
 {
 	struct radeon_fence *fence;
-	struct radeon_ib *nib;
-	int r = 0, i, c;
+	unsigned cretry = 0;
+	int r = 0, i, idx;
 
 	*ib = NULL;
-	r = radeon_fence_create(rdev, &fence);
+	/* align size on 256 bytes */
+	size = ALIGN(size, 256);
+
+	r = radeon_fence_create(rdev, &fence, ring);
 	if (r) {
 		dev_err(rdev->dev, "failed to create fence for new IB\n");
 		return r;
 	}
+
 	mutex_lock(&rdev->ib_pool.mutex);
-	for (i = rdev->ib_pool.head_id, c = 0, nib = NULL; c < RADEON_IB_POOL_SIZE; c++, i++) {
-		i &= (RADEON_IB_POOL_SIZE - 1);
-		if (rdev->ib_pool.ibs[i].free) {
-			nib = &rdev->ib_pool.ibs[i];
-			break;
-		}
-	}
-	if (nib == NULL) {
-		/* This should never happen, it means we allocated all
-		 * IB and haven't scheduled one yet, return EBUSY to
-		 * userspace hoping that on ioctl recall we get better
-		 * luck
-		 */
-		dev_err(rdev->dev, "no free indirect buffer !\n");
+	idx = rdev->ib_pool.head_id;
+retry:
+	if (cretry > 5) {
+		dev_err(rdev->dev, "failed to get an ib after 5 retry\n");
 		mutex_unlock(&rdev->ib_pool.mutex);
 		radeon_fence_unref(&fence);
-		return -EBUSY;
+		return -ENOMEM;
 	}
-	rdev->ib_pool.head_id = (nib->idx + 1) & (RADEON_IB_POOL_SIZE - 1);
-	nib->free = false;
-	if (nib->fence) {
-		mutex_unlock(&rdev->ib_pool.mutex);
-		r = radeon_fence_wait(nib->fence, false);
-		if (r) {
-			dev_err(rdev->dev, "error waiting fence of IB(%u:0x%016lX:%u)\n",
-				nib->idx, (unsigned long)nib->gpu_addr, nib->length_dw);
-			mutex_lock(&rdev->ib_pool.mutex);
-			nib->free = true;
-			mutex_unlock(&rdev->ib_pool.mutex);
-			radeon_fence_unref(&fence);
-			return r;
+	cretry++;
+	for (i = 0; i < RADEON_IB_POOL_SIZE; i++) {
+		radeon_ib_try_free(rdev, &rdev->ib_pool.ibs[idx]);
+		if (rdev->ib_pool.ibs[idx].fence == NULL) {
+			r = radeon_sa_bo_new(rdev, &rdev->ib_pool.sa_manager,
+					     &rdev->ib_pool.ibs[idx].sa_bo,
+					     size, 256);
+			if (!r) {
+				*ib = &rdev->ib_pool.ibs[idx];
+				(*ib)->ptr = rdev->ib_pool.sa_manager.cpu_ptr;
+				(*ib)->ptr += ((*ib)->sa_bo.offset >> 2);
+				(*ib)->gpu_addr = rdev->ib_pool.sa_manager.gpu_addr;
+				(*ib)->gpu_addr += (*ib)->sa_bo.offset;
+				(*ib)->fence = fence;
+				(*ib)->vm_id = 0;
+				/* ib are most likely to be allocated in a ring fashion
+				 * thus rdev->ib_pool.head_id should be the id of the
+				 * oldest ib
+				 */
+				rdev->ib_pool.head_id = (1 + idx);
+				rdev->ib_pool.head_id &= (RADEON_IB_POOL_SIZE - 1);
+				mutex_unlock(&rdev->ib_pool.mutex);
+				return 0;
+			}
 		}
-		mutex_lock(&rdev->ib_pool.mutex);
+		idx = (idx + 1) & (RADEON_IB_POOL_SIZE - 1);
+	}
+	/* this should be rare event, ie all ib scheduled none signaled yet.
+	 */
+	for (i = 0; i < RADEON_IB_POOL_SIZE; i++) {
+		if (rdev->ib_pool.ibs[idx].fence && rdev->ib_pool.ibs[idx].fence->emitted) {
+			r = radeon_fence_wait(rdev->ib_pool.ibs[idx].fence, false);
+			if (!r) {
+				goto retry;
+			}
+			/* an error happened */
+			break;
+		}
+		idx = (idx + 1) & (RADEON_IB_POOL_SIZE - 1);
 	}
-	radeon_fence_unref(&nib->fence);
-	nib->fence = fence;
-	nib->length_dw = 0;
 	mutex_unlock(&rdev->ib_pool.mutex);
-	*ib = nib;
-	return 0;
+	radeon_fence_unref(&fence);
+	return r;
 }
 
 void radeon_ib_free(struct radeon_device *rdev, struct radeon_ib **ib)
@@ -169,247 +171,255 @@ void radeon_ib_free(struct radeon_device *rdev, struct radeon_ib **ib)
 	if (tmp == NULL) {
 		return;
 	}
-	if (!tmp->fence->emited)
-		radeon_fence_unref(&tmp->fence);
 	mutex_lock(&rdev->ib_pool.mutex);
-	tmp->free = true;
+	if (tmp->fence && !tmp->fence->emitted) {
+		radeon_sa_bo_free(rdev, &tmp->sa_bo);
+		radeon_fence_unref(&tmp->fence);
+	}
 	mutex_unlock(&rdev->ib_pool.mutex);
 }
 
 int radeon_ib_schedule(struct radeon_device *rdev, struct radeon_ib *ib)
 {
+	struct radeon_ring *ring = &rdev->ring[ib->fence->ring];
 	int r = 0;
 
-	if (!ib->length_dw || !rdev->cp.ready) {
+	if (!ib->length_dw || !ring->ready) {
 		/* TODO: Nothings in the ib we should report. */
 		DRM_ERROR("radeon: couldn't schedule IB(%u).\n", ib->idx);
 		return -EINVAL;
 	}
 
 	/* 64 dwords should be enough for fence too */
-	r = radeon_ring_lock(rdev, 64);
+	r = radeon_ring_lock(rdev, ring, 64);
 	if (r) {
 		DRM_ERROR("radeon: scheduling IB failed (%d).\n", r);
 		return r;
 	}
-	radeon_ring_ib_execute(rdev, ib);
+	radeon_ring_ib_execute(rdev, ib->fence->ring, ib);
 	radeon_fence_emit(rdev, ib->fence);
-	mutex_lock(&rdev->ib_pool.mutex);
-	/* once scheduled IB is considered free and protected by the fence */
-	ib->free = true;
-	mutex_unlock(&rdev->ib_pool.mutex);
-	radeon_ring_unlock_commit(rdev);
+	radeon_ring_unlock_commit(rdev, ring);
 	return 0;
 }
 
 int radeon_ib_pool_init(struct radeon_device *rdev)
 {
-	void *ptr;
-	uint64_t gpu_addr;
-	int i;
-	int r = 0;
+	int i, r;
 
-	if (rdev->ib_pool.robj)
+	mutex_lock(&rdev->ib_pool.mutex);
+	if (rdev->ib_pool.ready) {
+		mutex_unlock(&rdev->ib_pool.mutex);
 		return 0;
-	INIT_LIST_HEAD(&rdev->ib_pool.bogus_ib);
-	/* Allocate 1M object buffer */
-	r = radeon_bo_create(rdev, RADEON_IB_POOL_SIZE*64*1024,
-			     PAGE_SIZE, true, RADEON_GEM_DOMAIN_GTT,
-			     &rdev->ib_pool.robj);
-	if (r) {
-		DRM_ERROR("radeon: failed to ib pool (%d).\n", r);
-		return r;
 	}
-	r = radeon_bo_reserve(rdev->ib_pool.robj, false);
-	if (unlikely(r != 0))
-		return r;
-	r = radeon_bo_pin(rdev->ib_pool.robj, RADEON_GEM_DOMAIN_GTT, &gpu_addr);
-	if (r) {
-		radeon_bo_unreserve(rdev->ib_pool.robj);
-		DRM_ERROR("radeon: failed to pin ib pool (%d).\n", r);
-		return r;
-	}
-	r = radeon_bo_kmap(rdev->ib_pool.robj, &ptr);
-	radeon_bo_unreserve(rdev->ib_pool.robj);
+
+	r = radeon_sa_bo_manager_init(rdev, &rdev->ib_pool.sa_manager,
+				      RADEON_IB_POOL_SIZE*64*1024,
+				      RADEON_GEM_DOMAIN_GTT);
 	if (r) {
-		DRM_ERROR("radeon: failed to map ib pool (%d).\n", r);
+		mutex_unlock(&rdev->ib_pool.mutex);
 		return r;
 	}
-	for (i = 0; i < RADEON_IB_POOL_SIZE; i++) {
-		unsigned offset;
 
-		offset = i * 64 * 1024;
-		rdev->ib_pool.ibs[i].gpu_addr = gpu_addr + offset;
-		rdev->ib_pool.ibs[i].ptr = ptr + offset;
+	for (i = 0; i < RADEON_IB_POOL_SIZE; i++) {
+		rdev->ib_pool.ibs[i].fence = NULL;
 		rdev->ib_pool.ibs[i].idx = i;
 		rdev->ib_pool.ibs[i].length_dw = 0;
-		rdev->ib_pool.ibs[i].free = true;
+		INIT_LIST_HEAD(&rdev->ib_pool.ibs[i].sa_bo.list);
 	}
 	rdev->ib_pool.head_id = 0;
 	rdev->ib_pool.ready = true;
 	DRM_INFO("radeon: ib pool ready.\n");
+
 	if (radeon_debugfs_ib_init(rdev)) {
 		DRM_ERROR("Failed to register debugfs file for IB !\n");
 	}
-	return r;
+	if (radeon_debugfs_ring_init(rdev)) {
+		DRM_ERROR("Failed to register debugfs file for rings !\n");
+	}
+	mutex_unlock(&rdev->ib_pool.mutex);
+	return 0;
 }
 
 void radeon_ib_pool_fini(struct radeon_device *rdev)
 {
-	int r;
-	struct radeon_bo *robj;
+	unsigned i;
 
-	if (!rdev->ib_pool.ready) {
-		return;
-	}
 	mutex_lock(&rdev->ib_pool.mutex);
-	radeon_ib_bogus_cleanup(rdev);
-	robj = rdev->ib_pool.robj;
-	rdev->ib_pool.robj = NULL;
-	mutex_unlock(&rdev->ib_pool.mutex);
-
-	if (robj) {
-		r = radeon_bo_reserve(robj, false);
-		if (likely(r == 0)) {
-			radeon_bo_kunmap(robj);
-			radeon_bo_unpin(robj);
-			radeon_bo_unreserve(robj);
+	if (rdev->ib_pool.ready) {
+		for (i = 0; i < RADEON_IB_POOL_SIZE; i++) {
+			radeon_sa_bo_free(rdev, &rdev->ib_pool.ibs[i].sa_bo);
+			radeon_fence_unref(&rdev->ib_pool.ibs[i].fence);
 		}
-		radeon_bo_unref(&robj);
+		radeon_sa_bo_manager_fini(rdev, &rdev->ib_pool.sa_manager);
+		rdev->ib_pool.ready = false;
 	}
+	mutex_unlock(&rdev->ib_pool.mutex);
 }
 
+int radeon_ib_pool_start(struct radeon_device *rdev)
+{
+	return radeon_sa_bo_manager_start(rdev, &rdev->ib_pool.sa_manager);
+}
+
+int radeon_ib_pool_suspend(struct radeon_device *rdev)
+{
+	return radeon_sa_bo_manager_suspend(rdev, &rdev->ib_pool.sa_manager);
+}
 
 /*
  * Ring.
  */
-void radeon_ring_free_size(struct radeon_device *rdev)
+int radeon_ring_index(struct radeon_device *rdev, struct radeon_ring *ring)
 {
-	if (rdev->wb.enabled)
-		rdev->cp.rptr = le32_to_cpu(rdev->wb.wb[RADEON_WB_CP_RPTR_OFFSET/4]);
-	else {
-		if (rdev->family >= CHIP_R600)
-			rdev->cp.rptr = RREG32(R600_CP_RB_RPTR);
-		else
-			rdev->cp.rptr = RREG32(RADEON_CP_RB_RPTR);
+	/* r1xx-r5xx only has CP ring */
+	if (rdev->family < CHIP_R600)
+		return RADEON_RING_TYPE_GFX_INDEX;
+
+	if (rdev->family >= CHIP_CAYMAN) {
+		if (ring == &rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX])
+			return CAYMAN_RING_TYPE_CP1_INDEX;
+		else if (ring == &rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX])
+			return CAYMAN_RING_TYPE_CP2_INDEX;
 	}
+	return RADEON_RING_TYPE_GFX_INDEX;
+}
+
+void radeon_ring_free_size(struct radeon_device *rdev, struct radeon_ring *ring)
+{
+	u32 rptr;
+
+	if (rdev->wb.enabled)
+		rptr = le32_to_cpu(rdev->wb.wb[ring->rptr_offs/4]);
+	else
+		rptr = RREG32(ring->rptr_reg);
+	ring->rptr = (rptr & ring->ptr_reg_mask) >> ring->ptr_reg_shift;
 	/* This works because ring_size is a power of 2 */
-	rdev->cp.ring_free_dw = (rdev->cp.rptr + (rdev->cp.ring_size / 4));
-	rdev->cp.ring_free_dw -= rdev->cp.wptr;
-	rdev->cp.ring_free_dw &= rdev->cp.ptr_mask;
-	if (!rdev->cp.ring_free_dw) {
-		rdev->cp.ring_free_dw = rdev->cp.ring_size / 4;
+	ring->ring_free_dw = (ring->rptr + (ring->ring_size / 4));
+	ring->ring_free_dw -= ring->wptr;
+	ring->ring_free_dw &= ring->ptr_mask;
+	if (!ring->ring_free_dw) {
+		ring->ring_free_dw = ring->ring_size / 4;
 	}
 }
 
-int radeon_ring_alloc(struct radeon_device *rdev, unsigned ndw)
+
+int radeon_ring_alloc(struct radeon_device *rdev, struct radeon_ring *ring, unsigned ndw)
 {
 	int r;
 
 	/* Align requested size with padding so unlock_commit can
 	 * pad safely */
-	ndw = (ndw + rdev->cp.align_mask) & ~rdev->cp.align_mask;
-	while (ndw > (rdev->cp.ring_free_dw - 1)) {
-		radeon_ring_free_size(rdev);
-		if (ndw < rdev->cp.ring_free_dw) {
+	ndw = (ndw + ring->align_mask) & ~ring->align_mask;
+	while (ndw > (ring->ring_free_dw - 1)) {
+		radeon_ring_free_size(rdev, ring);
+		if (ndw < ring->ring_free_dw) {
 			break;
 		}
-		r = radeon_fence_wait_next(rdev);
+		r = radeon_fence_wait_next(rdev, radeon_ring_index(rdev, ring));
 		if (r)
 			return r;
 	}
-	rdev->cp.count_dw = ndw;
-	rdev->cp.wptr_old = rdev->cp.wptr;
+	ring->count_dw = ndw;
+	ring->wptr_old = ring->wptr;
 	return 0;
 }
 
-int radeon_ring_lock(struct radeon_device *rdev, unsigned ndw)
+int radeon_ring_lock(struct radeon_device *rdev, struct radeon_ring *ring, unsigned ndw)
 {
 	int r;
 
-	mutex_lock(&rdev->cp.mutex);
-	r = radeon_ring_alloc(rdev, ndw);
+	mutex_lock(&ring->mutex);
+	r = radeon_ring_alloc(rdev, ring, ndw);
 	if (r) {
-		mutex_unlock(&rdev->cp.mutex);
+		mutex_unlock(&ring->mutex);
 		return r;
 	}
 	return 0;
 }
 
-void radeon_ring_commit(struct radeon_device *rdev)
+void radeon_ring_commit(struct radeon_device *rdev, struct radeon_ring *ring)
 {
 	unsigned count_dw_pad;
 	unsigned i;
 
 	/* We pad to match fetch size */
-	count_dw_pad = (rdev->cp.align_mask + 1) -
-		       (rdev->cp.wptr & rdev->cp.align_mask);
+	count_dw_pad = (ring->align_mask + 1) -
+		       (ring->wptr & ring->align_mask);
 	for (i = 0; i < count_dw_pad; i++) {
-		radeon_ring_write(rdev, 2 << 30);
+		radeon_ring_write(ring, ring->nop);
 	}
 	DRM_MEMORYBARRIER();
-	radeon_cp_commit(rdev);
+	WREG32(ring->wptr_reg, (ring->wptr << ring->ptr_reg_shift) & ring->ptr_reg_mask);
+	(void)RREG32(ring->wptr_reg);
 }
 
-void radeon_ring_unlock_commit(struct radeon_device *rdev)
+void radeon_ring_unlock_commit(struct radeon_device *rdev, struct radeon_ring *ring)
 {
-	radeon_ring_commit(rdev);
-	mutex_unlock(&rdev->cp.mutex);
+	radeon_ring_commit(rdev, ring);
+	mutex_unlock(&ring->mutex);
 }
 
-void radeon_ring_unlock_undo(struct radeon_device *rdev)
+void radeon_ring_unlock_undo(struct radeon_device *rdev, struct radeon_ring *ring)
 {
-	rdev->cp.wptr = rdev->cp.wptr_old;
-	mutex_unlock(&rdev->cp.mutex);
+	ring->wptr = ring->wptr_old;
+	mutex_unlock(&ring->mutex);
 }
 
-int radeon_ring_init(struct radeon_device *rdev, unsigned ring_size)
+int radeon_ring_init(struct radeon_device *rdev, struct radeon_ring *ring, unsigned ring_size,
+		     unsigned rptr_offs, unsigned rptr_reg, unsigned wptr_reg,
+		     u32 ptr_reg_shift, u32 ptr_reg_mask, u32 nop)
 {
 	int r;
 
-	rdev->cp.ring_size = ring_size;
+	ring->ring_size = ring_size;
+	ring->rptr_offs = rptr_offs;
+	ring->rptr_reg = rptr_reg;
+	ring->wptr_reg = wptr_reg;
+	ring->ptr_reg_shift = ptr_reg_shift;
+	ring->ptr_reg_mask = ptr_reg_mask;
+	ring->nop = nop;
 	/* Allocate ring buffer */
-	if (rdev->cp.ring_obj == NULL) {
-		r = radeon_bo_create(rdev, rdev->cp.ring_size, PAGE_SIZE, true,
+	if (ring->ring_obj == NULL) {
+		r = radeon_bo_create(rdev, ring->ring_size, PAGE_SIZE, true,
 					RADEON_GEM_DOMAIN_GTT,
-					&rdev->cp.ring_obj);
+					&ring->ring_obj);
 		if (r) {
 			dev_err(rdev->dev, "(%d) ring create failed\n", r);
 			return r;
 		}
-		r = radeon_bo_reserve(rdev->cp.ring_obj, false);
+		r = radeon_bo_reserve(ring->ring_obj, false);
 		if (unlikely(r != 0))
 			return r;
-		r = radeon_bo_pin(rdev->cp.ring_obj, RADEON_GEM_DOMAIN_GTT,
-					&rdev->cp.gpu_addr);
+		r = radeon_bo_pin(ring->ring_obj, RADEON_GEM_DOMAIN_GTT,
+					&ring->gpu_addr);
 		if (r) {
-			radeon_bo_unreserve(rdev->cp.ring_obj);
+			radeon_bo_unreserve(ring->ring_obj);
 			dev_err(rdev->dev, "(%d) ring pin failed\n", r);
 			return r;
 		}
-		r = radeon_bo_kmap(rdev->cp.ring_obj,
-				       (void **)&rdev->cp.ring);
-		radeon_bo_unreserve(rdev->cp.ring_obj);
+		r = radeon_bo_kmap(ring->ring_obj,
+				       (void **)&ring->ring);
+		radeon_bo_unreserve(ring->ring_obj);
 		if (r) {
 			dev_err(rdev->dev, "(%d) ring map failed\n", r);
 			return r;
 		}
 	}
-	rdev->cp.ptr_mask = (rdev->cp.ring_size / 4) - 1;
-	rdev->cp.ring_free_dw = rdev->cp.ring_size / 4;
+	ring->ptr_mask = (ring->ring_size / 4) - 1;
+	ring->ring_free_dw = ring->ring_size / 4;
 	return 0;
 }
 
-void radeon_ring_fini(struct radeon_device *rdev)
+void radeon_ring_fini(struct radeon_device *rdev, struct radeon_ring *ring)
 {
 	int r;
 	struct radeon_bo *ring_obj;
 
-	mutex_lock(&rdev->cp.mutex);
-	ring_obj = rdev->cp.ring_obj;
-	rdev->cp.ring = NULL;
-	rdev->cp.ring_obj = NULL;
-	mutex_unlock(&rdev->cp.mutex);
+	mutex_lock(&ring->mutex);
+	ring_obj = ring->ring_obj;
+	ring->ring = NULL;
+	ring->ring_obj = NULL;
+	mutex_unlock(&ring->mutex);
 
 	if (ring_obj) {
 		r = radeon_bo_reserve(ring_obj, false);
@@ -422,72 +432,83 @@ void radeon_ring_fini(struct radeon_device *rdev)
 	}
 }
 
-
 /*
  * Debugfs info
  */
 #if defined(CONFIG_DEBUG_FS)
-static int radeon_debugfs_ib_info(struct seq_file *m, void *data)
+
+static int radeon_debugfs_ring_info(struct seq_file *m, void *data)
 {
 	struct drm_info_node *node = (struct drm_info_node *) m->private;
-	struct radeon_ib *ib = node->info_ent->data;
-	unsigned i;
-
-	if (ib == NULL) {
-		return 0;
-	}
-	seq_printf(m, "IB %04u\n", ib->idx);
-	seq_printf(m, "IB fence %p\n", ib->fence);
-	seq_printf(m, "IB size %05u dwords\n", ib->length_dw);
-	for (i = 0; i < ib->length_dw; i++) {
-		seq_printf(m, "[%05u]=0x%08X\n", i, ib->ptr[i]);
+	struct drm_device *dev = node->minor->dev;
+	struct radeon_device *rdev = dev->dev_private;
+	int ridx = *(int*)node->info_ent->data;
+	struct radeon_ring *ring = &rdev->ring[ridx];
+	unsigned count, i, j;
+
+	radeon_ring_free_size(rdev, ring);
+	count = (ring->ring_size / 4) - ring->ring_free_dw;
+	seq_printf(m, "wptr(0x%04x): 0x%08x\n", ring->wptr_reg, RREG32(ring->wptr_reg));
+	seq_printf(m, "rptr(0x%04x): 0x%08x\n", ring->rptr_reg, RREG32(ring->rptr_reg));
+	seq_printf(m, "driver's copy of the wptr: 0x%08x\n", ring->wptr);
+	seq_printf(m, "driver's copy of the rptr: 0x%08x\n", ring->rptr);
+	seq_printf(m, "%u free dwords in ring\n", ring->ring_free_dw);
+	seq_printf(m, "%u dwords in ring\n", count);
+	i = ring->rptr;
+	for (j = 0; j <= count; j++) {
+		seq_printf(m, "r[%04d]=0x%08x\n", i, ring->ring[i]);
+		i = (i + 1) & ring->ptr_mask;
 	}
 	return 0;
 }
 
-static int radeon_debugfs_ib_bogus_info(struct seq_file *m, void *data)
+static int radeon_ring_type_gfx_index = RADEON_RING_TYPE_GFX_INDEX;
+static int cayman_ring_type_cp1_index = CAYMAN_RING_TYPE_CP1_INDEX;
+static int cayman_ring_type_cp2_index = CAYMAN_RING_TYPE_CP2_INDEX;
+
+static struct drm_info_list radeon_debugfs_ring_info_list[] = {
+	{"radeon_ring_gfx", radeon_debugfs_ring_info, 0, &radeon_ring_type_gfx_index},
+	{"radeon_ring_cp1", radeon_debugfs_ring_info, 0, &cayman_ring_type_cp1_index},
+	{"radeon_ring_cp2", radeon_debugfs_ring_info, 0, &cayman_ring_type_cp2_index},
+};
+
+static int radeon_debugfs_ib_info(struct seq_file *m, void *data)
 {
 	struct drm_info_node *node = (struct drm_info_node *) m->private;
-	struct radeon_device *rdev = node->info_ent->data;
-	struct radeon_ib *ib;
+	struct radeon_ib *ib = node->info_ent->data;
 	unsigned i;
 
-	mutex_lock(&rdev->ib_pool.mutex);
-	if (list_empty(&rdev->ib_pool.bogus_ib)) {
-		mutex_unlock(&rdev->ib_pool.mutex);
-		seq_printf(m, "no bogus IB recorded\n");
+	if (ib == NULL) {
 		return 0;
 	}
-	ib = list_first_entry(&rdev->ib_pool.bogus_ib, struct radeon_ib, list);
-	list_del_init(&ib->list);
-	mutex_unlock(&rdev->ib_pool.mutex);
+	seq_printf(m, "IB %04u\n", ib->idx);
+	seq_printf(m, "IB fence %p\n", ib->fence);
 	seq_printf(m, "IB size %05u dwords\n", ib->length_dw);
 	for (i = 0; i < ib->length_dw; i++) {
 		seq_printf(m, "[%05u]=0x%08X\n", i, ib->ptr[i]);
 	}
-	vfree(ib->ptr);
-	kfree(ib);
 	return 0;
 }
 
 static struct drm_info_list radeon_debugfs_ib_list[RADEON_IB_POOL_SIZE];
 static char radeon_debugfs_ib_names[RADEON_IB_POOL_SIZE][32];
+#endif
 
-static struct drm_info_list radeon_debugfs_ib_bogus_info_list[] = {
-	{"radeon_ib_bogus", radeon_debugfs_ib_bogus_info, 0, NULL},
-};
+int radeon_debugfs_ring_init(struct radeon_device *rdev)
+{
+#if defined(CONFIG_DEBUG_FS)
+	return radeon_debugfs_add_files(rdev, radeon_debugfs_ring_info_list,
+					ARRAY_SIZE(radeon_debugfs_ring_info_list));
+#else
+	return 0;
 #endif
+}
 
 int radeon_debugfs_ib_init(struct radeon_device *rdev)
 {
 #if defined(CONFIG_DEBUG_FS)
 	unsigned i;
-	int r;
 
-	radeon_debugfs_ib_bogus_info_list[0].data = rdev;
-	r = radeon_debugfs_add_files(rdev, radeon_debugfs_ib_bogus_info_list, 1);
-	if (r)
-		return r;
 	for (i = 0; i < RADEON_IB_POOL_SIZE; i++) {
 		sprintf(radeon_debugfs_ib_names[i], "radeon_ib_%04u", i);
 		radeon_debugfs_ib_list[i].name = radeon_debugfs_ib_names[i];
diff --git a/drivers/gpu/drm/radeon/radeon_sa.c b/drivers/gpu/drm/radeon/radeon_sa.c
new file mode 100644
index 000000000000..4cce47e7dc0d
--- /dev/null
+++ b/drivers/gpu/drm/radeon/radeon_sa.c
@@ -0,0 +1,189 @@
+/*
+ * Copyright 2011 Red Hat Inc.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ */
+/*
+ * Authors:
+ *    Jerome Glisse <glisse@freedesktop.org>
+ */
+#include "drmP.h"
+#include "drm.h"
+#include "radeon.h"
+
+int radeon_sa_bo_manager_init(struct radeon_device *rdev,
+			      struct radeon_sa_manager *sa_manager,
+			      unsigned size, u32 domain)
+{
+	int r;
+
+	sa_manager->bo = NULL;
+	sa_manager->size = size;
+	sa_manager->domain = domain;
+	INIT_LIST_HEAD(&sa_manager->sa_bo);
+
+	r = radeon_bo_create(rdev, size, RADEON_GPU_PAGE_SIZE, true,
+			     RADEON_GEM_DOMAIN_CPU, &sa_manager->bo);
+	if (r) {
+		dev_err(rdev->dev, "(%d) failed to allocate bo for manager\n", r);
+		return r;
+	}
+
+	return r;
+}
+
+void radeon_sa_bo_manager_fini(struct radeon_device *rdev,
+			       struct radeon_sa_manager *sa_manager)
+{
+	struct radeon_sa_bo *sa_bo, *tmp;
+
+	if (!list_empty(&sa_manager->sa_bo)) {
+		dev_err(rdev->dev, "sa_manager is not empty, clearing anyway\n");
+	}
+	list_for_each_entry_safe(sa_bo, tmp, &sa_manager->sa_bo, list) {
+		list_del_init(&sa_bo->list);
+	}
+	radeon_bo_unref(&sa_manager->bo);
+	sa_manager->size = 0;
+}
+
+int radeon_sa_bo_manager_start(struct radeon_device *rdev,
+			       struct radeon_sa_manager *sa_manager)
+{
+	int r;
+
+	if (sa_manager->bo == NULL) {
+		dev_err(rdev->dev, "no bo for sa manager\n");
+		return -EINVAL;
+	}
+
+	/* map the buffer */
+	r = radeon_bo_reserve(sa_manager->bo, false);
+	if (r) {
+		dev_err(rdev->dev, "(%d) failed to reserve manager bo\n", r);
+		return r;
+	}
+	r = radeon_bo_pin(sa_manager->bo, sa_manager->domain, &sa_manager->gpu_addr);
+	if (r) {
+		radeon_bo_unreserve(sa_manager->bo);
+		dev_err(rdev->dev, "(%d) failed to pin manager bo\n", r);
+		return r;
+	}
+	r = radeon_bo_kmap(sa_manager->bo, &sa_manager->cpu_ptr);
+	radeon_bo_unreserve(sa_manager->bo);
+	return r;
+}
+
+int radeon_sa_bo_manager_suspend(struct radeon_device *rdev,
+				 struct radeon_sa_manager *sa_manager)
+{
+	int r;
+
+	if (sa_manager->bo == NULL) {
+		dev_err(rdev->dev, "no bo for sa manager\n");
+		return -EINVAL;
+	}
+
+	r = radeon_bo_reserve(sa_manager->bo, false);
+	if (!r) {
+		radeon_bo_kunmap(sa_manager->bo);
+		radeon_bo_unpin(sa_manager->bo);
+		radeon_bo_unreserve(sa_manager->bo);
+	}
+	return r;
+}
+
+/*
+ * Principe is simple, we keep a list of sub allocation in offset
+ * order (first entry has offset == 0, last entry has the highest
+ * offset).
+ *
+ * When allocating new object we first check if there is room at
+ * the end total_size - (last_object_offset + last_object_size) >=
+ * alloc_size. If so we allocate new object there.
+ *
+ * When there is not enough room at the end, we start waiting for
+ * each sub object until we reach object_offset+object_size >=
+ * alloc_size, this object then become the sub object we return.
+ *
+ * Alignment can't be bigger than page size
+ */
+int radeon_sa_bo_new(struct radeon_device *rdev,
+		     struct radeon_sa_manager *sa_manager,
+		     struct radeon_sa_bo *sa_bo,
+		     unsigned size, unsigned align)
+{
+	struct radeon_sa_bo *tmp;
+	struct list_head *head;
+	unsigned offset = 0, wasted = 0;
+
+	BUG_ON(align > RADEON_GPU_PAGE_SIZE);
+	BUG_ON(size > sa_manager->size);
+
+	/* no one ? */
+	head = sa_manager->sa_bo.prev;
+	if (list_empty(&sa_manager->sa_bo)) {
+		goto out;
+	}
+
+	/* look for a hole big enough */
+	offset = 0;
+	list_for_each_entry(tmp, &sa_manager->sa_bo, list) {
+		/* room before this object ? */
+		if ((tmp->offset - offset) >= size) {
+			head = tmp->list.prev;
+			goto out;
+		}
+		offset = tmp->offset + tmp->size;
+		wasted = offset % align;
+		if (wasted) {
+			wasted = align - wasted;
+		}
+		offset += wasted;
+	}
+	/* room at the end ? */
+	head = sa_manager->sa_bo.prev;
+	tmp = list_entry(head, struct radeon_sa_bo, list);
+	offset = tmp->offset + tmp->size;
+	wasted = offset % align;
+	if (wasted) {
+		wasted = align - wasted;
+	}
+	offset += wasted;
+	if ((sa_manager->size - offset) < size) {
+		/* failed to find somethings big enough */
+		return -ENOMEM;
+	}
+
+out:
+	sa_bo->manager = sa_manager;
+	sa_bo->offset = offset;
+	sa_bo->size = size;
+	list_add(&sa_bo->list, head);
+	return 0;
+}
+
+void radeon_sa_bo_free(struct radeon_device *rdev, struct radeon_sa_bo *sa_bo)
+{
+	list_del_init(&sa_bo->list);
+}
diff --git a/drivers/gpu/drm/radeon/radeon_semaphore.c b/drivers/gpu/drm/radeon/radeon_semaphore.c
new file mode 100644
index 000000000000..61dd4e3c9209
--- /dev/null
+++ b/drivers/gpu/drm/radeon/radeon_semaphore.c
@@ -0,0 +1,178 @@
+/*
+ * Copyright 2011 Christian König.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ */
+/*
+ * Authors:
+ *    Christian König <deathsimple@vodafone.de>
+ */
+#include "drmP.h"
+#include "drm.h"
+#include "radeon.h"
+
+static int radeon_semaphore_add_bo(struct radeon_device *rdev)
+{
+	struct radeon_semaphore_bo *bo;
+	unsigned long irq_flags;
+	uint64_t gpu_addr;
+	uint32_t *cpu_ptr;
+	int r, i;
+
+
+	bo = kmalloc(sizeof(struct radeon_semaphore_bo), GFP_KERNEL);
+	if (bo == NULL) {
+		return -ENOMEM;
+	}
+	INIT_LIST_HEAD(&bo->free);
+	INIT_LIST_HEAD(&bo->list);
+	bo->nused = 0;
+
+	r = radeon_ib_get(rdev, 0, &bo->ib, RADEON_SEMAPHORE_BO_SIZE);
+	if (r) {
+		dev_err(rdev->dev, "failed to get a bo after 5 retry\n");
+		kfree(bo);
+		return r;
+	}
+	gpu_addr = rdev->ib_pool.sa_manager.gpu_addr;
+	gpu_addr += bo->ib->sa_bo.offset;
+	cpu_ptr = rdev->ib_pool.sa_manager.cpu_ptr;
+	cpu_ptr += (bo->ib->sa_bo.offset >> 2);
+	for (i = 0; i < (RADEON_SEMAPHORE_BO_SIZE/8); i++) {
+		bo->semaphores[i].gpu_addr = gpu_addr;
+		bo->semaphores[i].cpu_ptr = cpu_ptr;
+		bo->semaphores[i].bo = bo;
+		list_add_tail(&bo->semaphores[i].list, &bo->free);
+		gpu_addr += 8;
+		cpu_ptr += 2;
+	}
+	write_lock_irqsave(&rdev->semaphore_drv.lock, irq_flags);
+	list_add_tail(&bo->list, &rdev->semaphore_drv.bo);
+	write_unlock_irqrestore(&rdev->semaphore_drv.lock, irq_flags);
+	return 0;
+}
+
+static void radeon_semaphore_del_bo_locked(struct radeon_device *rdev,
+					   struct radeon_semaphore_bo *bo)
+{
+	radeon_sa_bo_free(rdev, &bo->ib->sa_bo);
+	radeon_fence_unref(&bo->ib->fence);
+	list_del(&bo->list);
+	kfree(bo);
+}
+
+void radeon_semaphore_shrink_locked(struct radeon_device *rdev)
+{
+	struct radeon_semaphore_bo *bo, *n;
+
+	if (list_empty(&rdev->semaphore_drv.bo)) {
+		return;
+	}
+	/* only shrink if first bo has free semaphore */
+	bo = list_first_entry(&rdev->semaphore_drv.bo, struct radeon_semaphore_bo, list);
+	if (list_empty(&bo->free)) {
+		return;
+	}
+	list_for_each_entry_safe_continue(bo, n, &rdev->semaphore_drv.bo, list) {
+		if (bo->nused)
+			continue;
+		radeon_semaphore_del_bo_locked(rdev, bo);
+	}
+}
+
+int radeon_semaphore_create(struct radeon_device *rdev,
+			    struct radeon_semaphore **semaphore)
+{
+	struct radeon_semaphore_bo *bo;
+	unsigned long irq_flags;
+	bool do_retry = true;
+	int r;
+
+retry:
+	*semaphore = NULL;
+	write_lock_irqsave(&rdev->semaphore_drv.lock, irq_flags);
+	list_for_each_entry(bo, &rdev->semaphore_drv.bo, list) {
+		if (list_empty(&bo->free))
+			continue;
+		*semaphore = list_first_entry(&bo->free, struct radeon_semaphore, list);
+		(*semaphore)->cpu_ptr[0] = 0;
+		(*semaphore)->cpu_ptr[1] = 0;
+		list_del(&(*semaphore)->list);
+		bo->nused++;
+		break;
+	}
+	write_unlock_irqrestore(&rdev->semaphore_drv.lock, irq_flags);
+
+	if (*semaphore == NULL) {
+		if (do_retry) {
+			do_retry = false;
+			r = radeon_semaphore_add_bo(rdev);
+			if (r)
+				return r;
+			goto retry;
+		}
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+
+void radeon_semaphore_emit_signal(struct radeon_device *rdev, int ring,
+			          struct radeon_semaphore *semaphore)
+{
+	radeon_semaphore_ring_emit(rdev, ring, &rdev->ring[ring], semaphore, false);
+}
+
+void radeon_semaphore_emit_wait(struct radeon_device *rdev, int ring,
+			        struct radeon_semaphore *semaphore)
+{
+	radeon_semaphore_ring_emit(rdev, ring, &rdev->ring[ring], semaphore, true);
+}
+
+void radeon_semaphore_free(struct radeon_device *rdev,
+			   struct radeon_semaphore *semaphore)
+{
+	unsigned long irq_flags;
+
+	write_lock_irqsave(&rdev->semaphore_drv.lock, irq_flags);
+	semaphore->bo->nused--;
+	list_add_tail(&semaphore->list, &semaphore->bo->free);
+	radeon_semaphore_shrink_locked(rdev);
+	write_unlock_irqrestore(&rdev->semaphore_drv.lock, irq_flags);
+}
+
+void radeon_semaphore_driver_fini(struct radeon_device *rdev)
+{
+	struct radeon_semaphore_bo *bo, *n;
+	unsigned long irq_flags;
+
+	write_lock_irqsave(&rdev->semaphore_drv.lock, irq_flags);
+	/* we force to free everything */
+	list_for_each_entry_safe(bo, n, &rdev->semaphore_drv.bo, list) {
+		if (!list_empty(&bo->free)) {
+			dev_err(rdev->dev, "still in use semaphore\n");
+		}
+		radeon_semaphore_del_bo_locked(rdev, bo);
+	}
+	write_unlock_irqrestore(&rdev->semaphore_drv.lock, irq_flags);
+}
diff --git a/drivers/gpu/drm/radeon/radeon_test.c b/drivers/gpu/drm/radeon/radeon_test.c
index 602fa3541c45..dc5dcf483aa3 100644
--- a/drivers/gpu/drm/radeon/radeon_test.c
+++ b/drivers/gpu/drm/radeon/radeon_test.c
@@ -42,7 +42,9 @@ void radeon_test_moves(struct radeon_device *rdev)
 	/* Number of tests =
 	 * (Total GTT - IB pool - writeback page - ring buffers) / test size
 	 */
-	n = rdev->mc.gtt_size - RADEON_IB_POOL_SIZE*64*1024 - rdev->cp.ring_size;
+	n = rdev->mc.gtt_size - RADEON_IB_POOL_SIZE*64*1024;
+	for (i = 0; i < RADEON_NUM_RINGS; ++i)
+		n -= rdev->ring[i].ring_size;
 	if (rdev->wb.wb_obj)
 		n -= RADEON_GPU_PAGE_SIZE;
 	if (rdev->ih.ring_obj)
@@ -104,7 +106,7 @@ void radeon_test_moves(struct radeon_device *rdev)
 
 		radeon_bo_kunmap(gtt_obj[i]);
 
-		r = radeon_fence_create(rdev, &fence);
+		r = radeon_fence_create(rdev, &fence, RADEON_RING_TYPE_GFX_INDEX);
 		if (r) {
 			DRM_ERROR("Failed to create GTT->VRAM fence %d\n", i);
 			goto out_cleanup;
@@ -153,7 +155,7 @@ void radeon_test_moves(struct radeon_device *rdev)
 
 		radeon_bo_kunmap(vram_obj);
 
-		r = radeon_fence_create(rdev, &fence);
+		r = radeon_fence_create(rdev, &fence, RADEON_RING_TYPE_GFX_INDEX);
 		if (r) {
 			DRM_ERROR("Failed to create VRAM->GTT fence %d\n", i);
 			goto out_cleanup;
@@ -232,3 +234,264 @@ out_cleanup:
 		printk(KERN_WARNING "Error while testing BO move.\n");
 	}
 }
+
+void radeon_test_ring_sync(struct radeon_device *rdev,
+			   struct radeon_ring *ringA,
+			   struct radeon_ring *ringB)
+{
+	struct radeon_fence *fence1 = NULL, *fence2 = NULL;
+	struct radeon_semaphore *semaphore = NULL;
+	int ridxA = radeon_ring_index(rdev, ringA);
+	int ridxB = radeon_ring_index(rdev, ringB);
+	int r;
+
+	r = radeon_fence_create(rdev, &fence1, ridxA);
+	if (r) {
+		DRM_ERROR("Failed to create sync fence 1\n");
+		goto out_cleanup;
+	}
+	r = radeon_fence_create(rdev, &fence2, ridxA);
+	if (r) {
+		DRM_ERROR("Failed to create sync fence 2\n");
+		goto out_cleanup;
+	}
+
+	r = radeon_semaphore_create(rdev, &semaphore);
+	if (r) {
+		DRM_ERROR("Failed to create semaphore\n");
+		goto out_cleanup;
+	}
+
+	r = radeon_ring_lock(rdev, ringA, 64);
+	if (r) {
+		DRM_ERROR("Failed to lock ring A %d\n", ridxA);
+		goto out_cleanup;
+	}
+	radeon_semaphore_emit_wait(rdev, ridxA, semaphore);
+	radeon_fence_emit(rdev, fence1);
+	radeon_semaphore_emit_wait(rdev, ridxA, semaphore);
+	radeon_fence_emit(rdev, fence2);
+	radeon_ring_unlock_commit(rdev, ringA);
+
+	mdelay(1000);
+
+	if (radeon_fence_signaled(fence1)) {
+		DRM_ERROR("Fence 1 signaled without waiting for semaphore.\n");
+		goto out_cleanup;
+	}
+
+	r = radeon_ring_lock(rdev, ringB, 64);
+	if (r) {
+		DRM_ERROR("Failed to lock ring B %p\n", ringB);
+		goto out_cleanup;
+	}
+	radeon_semaphore_emit_signal(rdev, ridxB, semaphore);
+	radeon_ring_unlock_commit(rdev, ringB);
+
+	r = radeon_fence_wait(fence1, false);
+	if (r) {
+		DRM_ERROR("Failed to wait for sync fence 1\n");
+		goto out_cleanup;
+	}
+
+	mdelay(1000);
+
+	if (radeon_fence_signaled(fence2)) {
+		DRM_ERROR("Fence 2 signaled without waiting for semaphore.\n");
+		goto out_cleanup;
+	}
+
+	r = radeon_ring_lock(rdev, ringB, 64);
+	if (r) {
+		DRM_ERROR("Failed to lock ring B %p\n", ringB);
+		goto out_cleanup;
+	}
+	radeon_semaphore_emit_signal(rdev, ridxB, semaphore);
+	radeon_ring_unlock_commit(rdev, ringB);
+
+	r = radeon_fence_wait(fence2, false);
+	if (r) {
+		DRM_ERROR("Failed to wait for sync fence 1\n");
+		goto out_cleanup;
+	}
+
+out_cleanup:
+	if (semaphore)
+		radeon_semaphore_free(rdev, semaphore);
+
+	if (fence1)
+		radeon_fence_unref(&fence1);
+
+	if (fence2)
+		radeon_fence_unref(&fence2);
+
+	if (r)
+		printk(KERN_WARNING "Error while testing ring sync (%d).\n", r);
+}
+
+void radeon_test_ring_sync2(struct radeon_device *rdev,
+			    struct radeon_ring *ringA,
+			    struct radeon_ring *ringB,
+			    struct radeon_ring *ringC)
+{
+	struct radeon_fence *fenceA = NULL, *fenceB = NULL;
+	struct radeon_semaphore *semaphore = NULL;
+	int ridxA = radeon_ring_index(rdev, ringA);
+	int ridxB = radeon_ring_index(rdev, ringB);
+	int ridxC = radeon_ring_index(rdev, ringC);
+	bool sigA, sigB;
+	int i, r;
+
+	r = radeon_fence_create(rdev, &fenceA, ridxA);
+	if (r) {
+		DRM_ERROR("Failed to create sync fence 1\n");
+		goto out_cleanup;
+	}
+	r = radeon_fence_create(rdev, &fenceB, ridxB);
+	if (r) {
+		DRM_ERROR("Failed to create sync fence 2\n");
+		goto out_cleanup;
+	}
+
+	r = radeon_semaphore_create(rdev, &semaphore);
+	if (r) {
+		DRM_ERROR("Failed to create semaphore\n");
+		goto out_cleanup;
+	}
+
+	r = radeon_ring_lock(rdev, ringA, 64);
+	if (r) {
+		DRM_ERROR("Failed to lock ring A %d\n", ridxA);
+		goto out_cleanup;
+	}
+	radeon_semaphore_emit_wait(rdev, ridxA, semaphore);
+	radeon_fence_emit(rdev, fenceA);
+	radeon_ring_unlock_commit(rdev, ringA);
+
+	r = radeon_ring_lock(rdev, ringB, 64);
+	if (r) {
+		DRM_ERROR("Failed to lock ring B %d\n", ridxB);
+		goto out_cleanup;
+	}
+	radeon_semaphore_emit_wait(rdev, ridxB, semaphore);
+	radeon_fence_emit(rdev, fenceB);
+	radeon_ring_unlock_commit(rdev, ringB);
+
+	mdelay(1000);
+
+	if (radeon_fence_signaled(fenceA)) {
+		DRM_ERROR("Fence A signaled without waiting for semaphore.\n");
+		goto out_cleanup;
+	}
+	if (radeon_fence_signaled(fenceB)) {
+		DRM_ERROR("Fence A signaled without waiting for semaphore.\n");
+		goto out_cleanup;
+	}
+
+	r = radeon_ring_lock(rdev, ringC, 64);
+	if (r) {
+		DRM_ERROR("Failed to lock ring B %p\n", ringC);
+		goto out_cleanup;
+	}
+	radeon_semaphore_emit_signal(rdev, ridxC, semaphore);
+	radeon_ring_unlock_commit(rdev, ringC);
+
+	for (i = 0; i < 30; ++i) {
+		mdelay(100);
+		sigA = radeon_fence_signaled(fenceA);
+		sigB = radeon_fence_signaled(fenceB);
+		if (sigA || sigB)
+			break;
+	}
+
+	if (!sigA && !sigB) {
+		DRM_ERROR("Neither fence A nor B has been signaled\n");
+		goto out_cleanup;
+	} else if (sigA && sigB) {
+		DRM_ERROR("Both fence A and B has been signaled\n");
+		goto out_cleanup;
+	}
+
+	DRM_INFO("Fence %c was first signaled\n", sigA ? 'A' : 'B');
+
+	r = radeon_ring_lock(rdev, ringC, 64);
+	if (r) {
+		DRM_ERROR("Failed to lock ring B %p\n", ringC);
+		goto out_cleanup;
+	}
+	radeon_semaphore_emit_signal(rdev, ridxC, semaphore);
+	radeon_ring_unlock_commit(rdev, ringC);
+
+	mdelay(1000);
+
+	r = radeon_fence_wait(fenceA, false);
+	if (r) {
+		DRM_ERROR("Failed to wait for sync fence A\n");
+		goto out_cleanup;
+	}
+	r = radeon_fence_wait(fenceB, false);
+	if (r) {
+		DRM_ERROR("Failed to wait for sync fence B\n");
+		goto out_cleanup;
+	}
+
+out_cleanup:
+	if (semaphore)
+		radeon_semaphore_free(rdev, semaphore);
+
+	if (fenceA)
+		radeon_fence_unref(&fenceA);
+
+	if (fenceB)
+		radeon_fence_unref(&fenceB);
+
+	if (r)
+		printk(KERN_WARNING "Error while testing ring sync (%d).\n", r);
+}
+
+void radeon_test_syncing(struct radeon_device *rdev)
+{
+	int i, j, k;
+
+	for (i = 1; i < RADEON_NUM_RINGS; ++i) {
+		struct radeon_ring *ringA = &rdev->ring[i];
+		if (!ringA->ready)
+			continue;
+
+		for (j = 0; j < i; ++j) {
+			struct radeon_ring *ringB = &rdev->ring[j];
+			if (!ringB->ready)
+				continue;
+
+			DRM_INFO("Testing syncing between rings %d and %d...\n", i, j);
+			radeon_test_ring_sync(rdev, ringA, ringB);
+
+			DRM_INFO("Testing syncing between rings %d and %d...\n", j, i);
+			radeon_test_ring_sync(rdev, ringB, ringA);
+
+			for (k = 0; k < j; ++k) {
+				struct radeon_ring *ringC = &rdev->ring[k];
+				if (!ringC->ready)
+					continue;
+
+				DRM_INFO("Testing syncing between rings %d, %d and %d...\n", i, j, k);
+				radeon_test_ring_sync2(rdev, ringA, ringB, ringC);
+
+				DRM_INFO("Testing syncing between rings %d, %d and %d...\n", i, k, j);
+				radeon_test_ring_sync2(rdev, ringA, ringC, ringB);
+
+				DRM_INFO("Testing syncing between rings %d, %d and %d...\n", j, i, k);
+				radeon_test_ring_sync2(rdev, ringB, ringA, ringC);
+
+				DRM_INFO("Testing syncing between rings %d, %d and %d...\n", j, k, i);
+				radeon_test_ring_sync2(rdev, ringB, ringC, ringA);
+
+				DRM_INFO("Testing syncing between rings %d, %d and %d...\n", k, i, j);
+				radeon_test_ring_sync2(rdev, ringC, ringA, ringB);
+
+				DRM_INFO("Testing syncing between rings %d, %d and %d...\n", k, j, i);
+				radeon_test_ring_sync2(rdev, ringC, ringB, ringA);
+			}
+		}
+	}
+}
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index 0b5468bfaf54..c421e77ace71 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -114,24 +114,6 @@ static void radeon_ttm_global_fini(struct radeon_device *rdev)
 	}
 }
 
-struct ttm_backend *radeon_ttm_backend_create(struct radeon_device *rdev);
-
-static struct ttm_backend*
-radeon_create_ttm_backend_entry(struct ttm_bo_device *bdev)
-{
-	struct radeon_device *rdev;
-
-	rdev = radeon_get_rdev(bdev);
-#if __OS_HAS_AGP
-	if (rdev->flags & RADEON_IS_AGP) {
-		return ttm_agp_backend_init(bdev, rdev->ddev->agp->bridge);
-	} else
-#endif
-	{
-		return radeon_ttm_backend_create(rdev);
-	}
-}
-
 static int radeon_invalidate_caches(struct ttm_bo_device *bdev, uint32_t flags)
 {
 	return 0;
@@ -206,7 +188,7 @@ static void radeon_evict_flags(struct ttm_buffer_object *bo,
 	rbo = container_of(bo, struct radeon_bo, tbo);
 	switch (bo->mem.mem_type) {
 	case TTM_PL_VRAM:
-		if (rbo->rdev->cp.ready == false)
+		if (rbo->rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready == false)
 			radeon_ttm_placement_from_domain(rbo, RADEON_GEM_DOMAIN_CPU);
 		else
 			radeon_ttm_placement_from_domain(rbo, RADEON_GEM_DOMAIN_GTT);
@@ -241,10 +223,10 @@ static int radeon_move_blit(struct ttm_buffer_object *bo,
 	struct radeon_device *rdev;
 	uint64_t old_start, new_start;
 	struct radeon_fence *fence;
-	int r;
+	int r, i;
 
 	rdev = radeon_get_rdev(bo->bdev);
-	r = radeon_fence_create(rdev, &fence);
+	r = radeon_fence_create(rdev, &fence, rdev->copy_ring);
 	if (unlikely(r)) {
 		return r;
 	}
@@ -273,13 +255,43 @@ static int radeon_move_blit(struct ttm_buffer_object *bo,
 		DRM_ERROR("Unknown placement %d\n", old_mem->mem_type);
 		return -EINVAL;
 	}
-	if (!rdev->cp.ready) {
-		DRM_ERROR("Trying to move memory with CP turned off.\n");
+	if (!rdev->ring[rdev->copy_ring].ready) {
+		DRM_ERROR("Trying to move memory with ring turned off.\n");
 		return -EINVAL;
 	}
 
 	BUILD_BUG_ON((PAGE_SIZE % RADEON_GPU_PAGE_SIZE) != 0);
 
+	/* sync other rings */
+	if (rdev->family >= CHIP_R600) {
+		for (i = 0; i < RADEON_NUM_RINGS; ++i) {
+			/* no need to sync to our own or unused rings */
+			if (i == rdev->copy_ring || !rdev->ring[i].ready)
+				continue;
+
+			if (!fence->semaphore) {
+				r = radeon_semaphore_create(rdev, &fence->semaphore);
+				/* FIXME: handle semaphore error */
+				if (r)
+					continue;
+			}
+
+			r = radeon_ring_lock(rdev, &rdev->ring[i], 3);
+			/* FIXME: handle ring lock error */
+			if (r)
+				continue;
+			radeon_semaphore_emit_signal(rdev, i, fence->semaphore);
+			radeon_ring_unlock_commit(rdev, &rdev->ring[i]);
+
+			r = radeon_ring_lock(rdev, &rdev->ring[rdev->copy_ring], 3);
+			/* FIXME: handle ring lock error */
+			if (r)
+				continue;
+			radeon_semaphore_emit_wait(rdev, rdev->copy_ring, fence->semaphore);
+			radeon_ring_unlock_commit(rdev, &rdev->ring[rdev->copy_ring]);
+		}
+	}
+
 	r = radeon_copy(rdev, old_start, new_start,
 			new_mem->num_pages * (PAGE_SIZE / RADEON_GPU_PAGE_SIZE), /* GPU pages */
 			fence);
@@ -398,7 +410,7 @@ static int radeon_bo_move(struct ttm_buffer_object *bo,
 		radeon_move_null(bo, new_mem);
 		return 0;
 	}
-	if (!rdev->cp.ready || rdev->asic->copy == NULL) {
+	if (!rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready || rdev->asic->copy == NULL) {
 		/* use memcpy */
 		goto memcpy;
 	}
@@ -515,8 +527,166 @@ static bool radeon_sync_obj_signaled(void *sync_obj, void *sync_arg)
 	return radeon_fence_signaled((struct radeon_fence *)sync_obj);
 }
 
+/*
+ * TTM backend functions.
+ */
+struct radeon_ttm_tt {
+	struct ttm_dma_tt		ttm;
+	struct radeon_device		*rdev;
+	u64				offset;
+};
+
+static int radeon_ttm_backend_bind(struct ttm_tt *ttm,
+				   struct ttm_mem_reg *bo_mem)
+{
+	struct radeon_ttm_tt *gtt = (void*)ttm;
+	int r;
+
+	gtt->offset = (unsigned long)(bo_mem->start << PAGE_SHIFT);
+	if (!ttm->num_pages) {
+		WARN(1, "nothing to bind %lu pages for mreg %p back %p!\n",
+		     ttm->num_pages, bo_mem, ttm);
+	}
+	r = radeon_gart_bind(gtt->rdev, gtt->offset,
+			     ttm->num_pages, ttm->pages, gtt->ttm.dma_address);
+	if (r) {
+		DRM_ERROR("failed to bind %lu pages at 0x%08X\n",
+			  ttm->num_pages, (unsigned)gtt->offset);
+		return r;
+	}
+	return 0;
+}
+
+static int radeon_ttm_backend_unbind(struct ttm_tt *ttm)
+{
+	struct radeon_ttm_tt *gtt = (void *)ttm;
+
+	radeon_gart_unbind(gtt->rdev, gtt->offset, ttm->num_pages);
+	return 0;
+}
+
+static void radeon_ttm_backend_destroy(struct ttm_tt *ttm)
+{
+	struct radeon_ttm_tt *gtt = (void *)ttm;
+
+	ttm_dma_tt_fini(&gtt->ttm);
+	kfree(gtt);
+}
+
+static struct ttm_backend_func radeon_backend_func = {
+	.bind = &radeon_ttm_backend_bind,
+	.unbind = &radeon_ttm_backend_unbind,
+	.destroy = &radeon_ttm_backend_destroy,
+};
+
+struct ttm_tt *radeon_ttm_tt_create(struct ttm_bo_device *bdev,
+				    unsigned long size, uint32_t page_flags,
+				    struct page *dummy_read_page)
+{
+	struct radeon_device *rdev;
+	struct radeon_ttm_tt *gtt;
+
+	rdev = radeon_get_rdev(bdev);
+#if __OS_HAS_AGP
+	if (rdev->flags & RADEON_IS_AGP) {
+		return ttm_agp_tt_create(bdev, rdev->ddev->agp->bridge,
+					 size, page_flags, dummy_read_page);
+	}
+#endif
+
+	gtt = kzalloc(sizeof(struct radeon_ttm_tt), GFP_KERNEL);
+	if (gtt == NULL) {
+		return NULL;
+	}
+	gtt->ttm.ttm.func = &radeon_backend_func;
+	gtt->rdev = rdev;
+	if (ttm_dma_tt_init(&gtt->ttm, bdev, size, page_flags, dummy_read_page)) {
+		kfree(gtt);
+		return NULL;
+	}
+	return &gtt->ttm.ttm;
+}
+
+static int radeon_ttm_tt_populate(struct ttm_tt *ttm)
+{
+	struct radeon_device *rdev;
+	struct radeon_ttm_tt *gtt = (void *)ttm;
+	unsigned i;
+	int r;
+
+	if (ttm->state != tt_unpopulated)
+		return 0;
+
+	rdev = radeon_get_rdev(ttm->bdev);
+#if __OS_HAS_AGP
+	if (rdev->flags & RADEON_IS_AGP) {
+		return ttm_agp_tt_populate(ttm);
+	}
+#endif
+
+#ifdef CONFIG_SWIOTLB
+	if (swiotlb_nr_tbl()) {
+		return ttm_dma_populate(&gtt->ttm, rdev->dev);
+	}
+#endif
+
+	r = ttm_pool_populate(ttm);
+	if (r) {
+		return r;
+	}
+
+	for (i = 0; i < ttm->num_pages; i++) {
+		gtt->ttm.dma_address[i] = pci_map_page(rdev->pdev, ttm->pages[i],
+						       0, PAGE_SIZE,
+						       PCI_DMA_BIDIRECTIONAL);
+		if (pci_dma_mapping_error(rdev->pdev, gtt->ttm.dma_address[i])) {
+			while (--i) {
+				pci_unmap_page(rdev->pdev, gtt->ttm.dma_address[i],
+					       PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
+				gtt->ttm.dma_address[i] = 0;
+			}
+			ttm_pool_unpopulate(ttm);
+			return -EFAULT;
+		}
+	}
+	return 0;
+}
+
+static void radeon_ttm_tt_unpopulate(struct ttm_tt *ttm)
+{
+	struct radeon_device *rdev;
+	struct radeon_ttm_tt *gtt = (void *)ttm;
+	unsigned i;
+
+	rdev = radeon_get_rdev(ttm->bdev);
+#if __OS_HAS_AGP
+	if (rdev->flags & RADEON_IS_AGP) {
+		ttm_agp_tt_unpopulate(ttm);
+		return;
+	}
+#endif
+
+#ifdef CONFIG_SWIOTLB
+	if (swiotlb_nr_tbl()) {
+		ttm_dma_unpopulate(&gtt->ttm, rdev->dev);
+		return;
+	}
+#endif
+
+	for (i = 0; i < ttm->num_pages; i++) {
+		if (gtt->ttm.dma_address[i]) {
+			pci_unmap_page(rdev->pdev, gtt->ttm.dma_address[i],
+				       PAGE_SIZE, PCI_DMA_BIDIRECTIONAL);
+		}
+	}
+
+	ttm_pool_unpopulate(ttm);
+}
+
 static struct ttm_bo_driver radeon_bo_driver = {
-	.create_ttm_backend_entry = &radeon_create_ttm_backend_entry,
+	.ttm_tt_create = &radeon_ttm_tt_create,
+	.ttm_tt_populate = &radeon_ttm_tt_populate,
+	.ttm_tt_unpopulate = &radeon_ttm_tt_unpopulate,
 	.invalidate_caches = &radeon_invalidate_caches,
 	.init_mem_type = &radeon_init_mem_type,
 	.evict_flags = &radeon_evict_flags,
@@ -680,124 +850,6 @@ int radeon_mmap(struct file *filp, struct vm_area_struct *vma)
 }
 
 
-/*
- * TTM backend functions.
- */
-struct radeon_ttm_backend {
-	struct ttm_backend		backend;
-	struct radeon_device		*rdev;
-	unsigned long			num_pages;
-	struct page			**pages;
-	struct page			*dummy_read_page;
-	dma_addr_t			*dma_addrs;
-	bool				populated;
-	bool				bound;
-	unsigned			offset;
-};
-
-static int radeon_ttm_backend_populate(struct ttm_backend *backend,
-				       unsigned long num_pages,
-				       struct page **pages,
-				       struct page *dummy_read_page,
-				       dma_addr_t *dma_addrs)
-{
-	struct radeon_ttm_backend *gtt;
-
-	gtt = container_of(backend, struct radeon_ttm_backend, backend);
-	gtt->pages = pages;
-	gtt->dma_addrs = dma_addrs;
-	gtt->num_pages = num_pages;
-	gtt->dummy_read_page = dummy_read_page;
-	gtt->populated = true;
-	return 0;
-}
-
-static void radeon_ttm_backend_clear(struct ttm_backend *backend)
-{
-	struct radeon_ttm_backend *gtt;
-
-	gtt = container_of(backend, struct radeon_ttm_backend, backend);
-	gtt->pages = NULL;
-	gtt->dma_addrs = NULL;
-	gtt->num_pages = 0;
-	gtt->dummy_read_page = NULL;
-	gtt->populated = false;
-	gtt->bound = false;
-}
-
-
-static int radeon_ttm_backend_bind(struct ttm_backend *backend,
-				   struct ttm_mem_reg *bo_mem)
-{
-	struct radeon_ttm_backend *gtt;
-	int r;
-
-	gtt = container_of(backend, struct radeon_ttm_backend, backend);
-	gtt->offset = bo_mem->start << PAGE_SHIFT;
-	if (!gtt->num_pages) {
-		WARN(1, "nothing to bind %lu pages for mreg %p back %p!\n",
-		     gtt->num_pages, bo_mem, backend);
-	}
-	r = radeon_gart_bind(gtt->rdev, gtt->offset,
-			     gtt->num_pages, gtt->pages, gtt->dma_addrs);
-	if (r) {
-		DRM_ERROR("failed to bind %lu pages at 0x%08X\n",
-			  gtt->num_pages, gtt->offset);
-		return r;
-	}
-	gtt->bound = true;
-	return 0;
-}
-
-static int radeon_ttm_backend_unbind(struct ttm_backend *backend)
-{
-	struct radeon_ttm_backend *gtt;
-
-	gtt = container_of(backend, struct radeon_ttm_backend, backend);
-	radeon_gart_unbind(gtt->rdev, gtt->offset, gtt->num_pages);
-	gtt->bound = false;
-	return 0;
-}
-
-static void radeon_ttm_backend_destroy(struct ttm_backend *backend)
-{
-	struct radeon_ttm_backend *gtt;
-
-	gtt = container_of(backend, struct radeon_ttm_backend, backend);
-	if (gtt->bound) {
-		radeon_ttm_backend_unbind(backend);
-	}
-	kfree(gtt);
-}
-
-static struct ttm_backend_func radeon_backend_func = {
-	.populate = &radeon_ttm_backend_populate,
-	.clear = &radeon_ttm_backend_clear,
-	.bind = &radeon_ttm_backend_bind,
-	.unbind = &radeon_ttm_backend_unbind,
-	.destroy = &radeon_ttm_backend_destroy,
-};
-
-struct ttm_backend *radeon_ttm_backend_create(struct radeon_device *rdev)
-{
-	struct radeon_ttm_backend *gtt;
-
-	gtt = kzalloc(sizeof(struct radeon_ttm_backend), GFP_KERNEL);
-	if (gtt == NULL) {
-		return NULL;
-	}
-	gtt->backend.bdev = &rdev->mman.bdev;
-	gtt->backend.flags = 0;
-	gtt->backend.func = &radeon_backend_func;
-	gtt->rdev = rdev;
-	gtt->pages = NULL;
-	gtt->num_pages = 0;
-	gtt->dummy_read_page = NULL;
-	gtt->populated = false;
-	gtt->bound = false;
-	return &gtt->backend;
-}
-
 #define RADEON_DEBUGFS_MEM_TYPES 2
 
 #if defined(CONFIG_DEBUG_FS)
@@ -820,8 +872,8 @@ static int radeon_mm_dump_table(struct seq_file *m, void *data)
 static int radeon_ttm_debugfs_init(struct radeon_device *rdev)
 {
 #if defined(CONFIG_DEBUG_FS)
-	static struct drm_info_list radeon_mem_types_list[RADEON_DEBUGFS_MEM_TYPES+1];
-	static char radeon_mem_types_names[RADEON_DEBUGFS_MEM_TYPES+1][32];
+	static struct drm_info_list radeon_mem_types_list[RADEON_DEBUGFS_MEM_TYPES+2];
+	static char radeon_mem_types_names[RADEON_DEBUGFS_MEM_TYPES+2][32];
 	unsigned i;
 
 	for (i = 0; i < RADEON_DEBUGFS_MEM_TYPES; i++) {
@@ -843,8 +895,17 @@ static int radeon_ttm_debugfs_init(struct radeon_device *rdev)
 	radeon_mem_types_list[i].name = radeon_mem_types_names[i];
 	radeon_mem_types_list[i].show = &ttm_page_alloc_debugfs;
 	radeon_mem_types_list[i].driver_features = 0;
-	radeon_mem_types_list[i].data = NULL;
-	return radeon_debugfs_add_files(rdev, radeon_mem_types_list, RADEON_DEBUGFS_MEM_TYPES+1);
+	radeon_mem_types_list[i++].data = NULL;
+#ifdef CONFIG_SWIOTLB
+	if (swiotlb_nr_tbl()) {
+		sprintf(radeon_mem_types_names[i], "ttm_dma_page_pool");
+		radeon_mem_types_list[i].name = radeon_mem_types_names[i];
+		radeon_mem_types_list[i].show = &ttm_dma_page_alloc_debugfs;
+		radeon_mem_types_list[i].driver_features = 0;
+		radeon_mem_types_list[i++].data = NULL;
+	}
+#endif
+	return radeon_debugfs_add_files(rdev, radeon_mem_types_list, i);
 
 #endif
 	return 0;
diff --git a/drivers/gpu/drm/radeon/rs400.c b/drivers/gpu/drm/radeon/rs400.c
index 06b90c87f8f3..b0ce84a20a68 100644
--- a/drivers/gpu/drm/radeon/rs400.c
+++ b/drivers/gpu/drm/radeon/rs400.c
@@ -410,6 +410,12 @@ static int rs400_startup(struct radeon_device *rdev)
 	if (r)
 		return r;
 
+	r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
+	if (r) {
+		dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
+		return r;
+	}
+
 	/* Enable IRQ */
 	r100_irq_set(rdev);
 	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
@@ -419,11 +425,18 @@ static int rs400_startup(struct radeon_device *rdev)
 		dev_err(rdev->dev, "failed initializing CP (%d).\n", r);
 		return r;
 	}
-	r = r100_ib_init(rdev);
+
+	r = radeon_ib_pool_start(rdev);
+	if (r)
+		return r;
+
+	r = r100_ib_test(rdev);
 	if (r) {
-		dev_err(rdev->dev, "failed initializing IB (%d).\n", r);
+		dev_err(rdev->dev, "failed testing IB (%d).\n", r);
+		rdev->accel_working = false;
 		return r;
 	}
+
 	return 0;
 }
 
@@ -447,11 +460,14 @@ int rs400_resume(struct radeon_device *rdev)
 	r300_clock_startup(rdev);
 	/* Initialize surface registers */
 	radeon_surface_init(rdev);
+
+	rdev->accel_working = true;
 	return rs400_startup(rdev);
 }
 
 int rs400_suspend(struct radeon_device *rdev)
 {
+	radeon_ib_pool_suspend(rdev);
 	r100_cp_disable(rdev);
 	radeon_wb_disable(rdev);
 	r100_irq_disable(rdev);
@@ -530,7 +546,14 @@ int rs400_init(struct radeon_device *rdev)
 	if (r)
 		return r;
 	r300_set_reg_safe(rdev);
+
+	r = radeon_ib_pool_init(rdev);
 	rdev->accel_working = true;
+	if (r) {
+		dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
+		rdev->accel_working = false;
+	}
+
 	r = rs400_startup(rdev);
 	if (r) {
 		/* Somethings want wront with the accel init stop accel */
diff --git a/drivers/gpu/drm/radeon/rs600.c b/drivers/gpu/drm/radeon/rs600.c
index b1053d640423..803e0d3c1773 100644
--- a/drivers/gpu/drm/radeon/rs600.c
+++ b/drivers/gpu/drm/radeon/rs600.c
@@ -324,10 +324,10 @@ void rs600_hpd_fini(struct radeon_device *rdev)
 
 void rs600_bm_disable(struct radeon_device *rdev)
 {
-	u32 tmp;
+	u16 tmp;
 
 	/* disable bus mastering */
-	pci_read_config_word(rdev->pdev, 0x4, (u16*)&tmp);
+	pci_read_config_word(rdev->pdev, 0x4, &tmp);
 	pci_write_config_word(rdev->pdev, 0x4, tmp & 0xFFFB);
 	mdelay(1);
 }
@@ -549,7 +549,7 @@ int rs600_irq_set(struct radeon_device *rdev)
 		WREG32(R_000040_GEN_INT_CNTL, 0);
 		return -EINVAL;
 	}
-	if (rdev->irq.sw_int) {
+	if (rdev->irq.sw_int[RADEON_RING_TYPE_GFX_INDEX]) {
 		tmp |= S_000040_SW_INT_EN(1);
 	}
 	if (rdev->irq.gui_idle) {
@@ -642,7 +642,7 @@ int rs600_irq_process(struct radeon_device *rdev)
 	while (status || rdev->irq.stat_regs.r500.disp_int) {
 		/* SW interrupt */
 		if (G_000044_SW_INT(status)) {
-			radeon_fence_process(rdev);
+			radeon_fence_process(rdev, RADEON_RING_TYPE_GFX_INDEX);
 		}
 		/* GUI idle */
 		if (G_000040_GUI_IDLE(status)) {
@@ -849,6 +849,12 @@ static int rs600_startup(struct radeon_device *rdev)
 	if (r)
 		return r;
 
+	r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
+	if (r) {
+		dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
+		return r;
+	}
+
 	/* Enable IRQ */
 	rs600_irq_set(rdev);
 	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
@@ -858,15 +864,21 @@ static int rs600_startup(struct radeon_device *rdev)
 		dev_err(rdev->dev, "failed initializing CP (%d).\n", r);
 		return r;
 	}
-	r = r100_ib_init(rdev);
+
+	r = r600_audio_init(rdev);
 	if (r) {
-		dev_err(rdev->dev, "failed initializing IB (%d).\n", r);
+		dev_err(rdev->dev, "failed initializing audio\n");
 		return r;
 	}
 
-	r = r600_audio_init(rdev);
+	r = radeon_ib_pool_start(rdev);
+	if (r)
+		return r;
+
+	r = r100_ib_test(rdev);
 	if (r) {
-		dev_err(rdev->dev, "failed initializing audio\n");
+		dev_err(rdev->dev, "failed testing IB (%d).\n", r);
+		rdev->accel_working = false;
 		return r;
 	}
 
@@ -891,11 +903,14 @@ int rs600_resume(struct radeon_device *rdev)
 	rv515_clock_startup(rdev);
 	/* Initialize surface registers */
 	radeon_surface_init(rdev);
+
+	rdev->accel_working = true;
 	return rs600_startup(rdev);
 }
 
 int rs600_suspend(struct radeon_device *rdev)
 {
+	radeon_ib_pool_suspend(rdev);
 	r600_audio_fini(rdev);
 	r100_cp_disable(rdev);
 	radeon_wb_disable(rdev);
@@ -976,7 +991,14 @@ int rs600_init(struct radeon_device *rdev)
 	if (r)
 		return r;
 	rs600_set_safe_registers(rdev);
+
+	r = radeon_ib_pool_init(rdev);
 	rdev->accel_working = true;
+	if (r) {
+		dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
+		rdev->accel_working = false;
+	}
+
 	r = rs600_startup(rdev);
 	if (r) {
 		/* Somethings want wront with the accel init stop accel */
diff --git a/drivers/gpu/drm/radeon/rs690.c b/drivers/gpu/drm/radeon/rs690.c
index a9049ed1a519..4f24a0fa8c82 100644
--- a/drivers/gpu/drm/radeon/rs690.c
+++ b/drivers/gpu/drm/radeon/rs690.c
@@ -621,6 +621,12 @@ static int rs690_startup(struct radeon_device *rdev)
 	if (r)
 		return r;
 
+	r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
+	if (r) {
+		dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
+		return r;
+	}
+
 	/* Enable IRQ */
 	rs600_irq_set(rdev);
 	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
@@ -630,15 +636,21 @@ static int rs690_startup(struct radeon_device *rdev)
 		dev_err(rdev->dev, "failed initializing CP (%d).\n", r);
 		return r;
 	}
-	r = r100_ib_init(rdev);
+
+	r = r600_audio_init(rdev);
 	if (r) {
-		dev_err(rdev->dev, "failed initializing IB (%d).\n", r);
+		dev_err(rdev->dev, "failed initializing audio\n");
 		return r;
 	}
 
-	r = r600_audio_init(rdev);
+	r = radeon_ib_pool_start(rdev);
+	if (r)
+		return r;
+
+	r = r100_ib_test(rdev);
 	if (r) {
-		dev_err(rdev->dev, "failed initializing audio\n");
+		dev_err(rdev->dev, "failed testing IB (%d).\n", r);
+		rdev->accel_working = false;
 		return r;
 	}
 
@@ -663,11 +675,14 @@ int rs690_resume(struct radeon_device *rdev)
 	rv515_clock_startup(rdev);
 	/* Initialize surface registers */
 	radeon_surface_init(rdev);
+
+	rdev->accel_working = true;
 	return rs690_startup(rdev);
 }
 
 int rs690_suspend(struct radeon_device *rdev)
 {
+	radeon_ib_pool_suspend(rdev);
 	r600_audio_fini(rdev);
 	r100_cp_disable(rdev);
 	radeon_wb_disable(rdev);
@@ -749,7 +764,14 @@ int rs690_init(struct radeon_device *rdev)
 	if (r)
 		return r;
 	rs600_set_safe_registers(rdev);
+
+	r = radeon_ib_pool_init(rdev);
 	rdev->accel_working = true;
+	if (r) {
+		dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
+		rdev->accel_working = false;
+	}
+
 	r = rs690_startup(rdev);
 	if (r) {
 		/* Somethings want wront with the accel init stop accel */
diff --git a/drivers/gpu/drm/radeon/rv515.c b/drivers/gpu/drm/radeon/rv515.c
index 6613ee9ecca3..880637fd1946 100644
--- a/drivers/gpu/drm/radeon/rv515.c
+++ b/drivers/gpu/drm/radeon/rv515.c
@@ -55,44 +55,45 @@ void rv515_debugfs(struct radeon_device *rdev)
 
 void rv515_ring_start(struct radeon_device *rdev)
 {
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 	int r;
 
-	r = radeon_ring_lock(rdev, 64);
+	r = radeon_ring_lock(rdev, ring, 64);
 	if (r) {
 		return;
 	}
-	radeon_ring_write(rdev, PACKET0(ISYNC_CNTL, 0));
-	radeon_ring_write(rdev,
+	radeon_ring_write(ring, PACKET0(ISYNC_CNTL, 0));
+	radeon_ring_write(ring,
 			  ISYNC_ANY2D_IDLE3D |
 			  ISYNC_ANY3D_IDLE2D |
 			  ISYNC_WAIT_IDLEGUI |
 			  ISYNC_CPSCRATCH_IDLEGUI);
-	radeon_ring_write(rdev, PACKET0(WAIT_UNTIL, 0));
-	radeon_ring_write(rdev, WAIT_2D_IDLECLEAN | WAIT_3D_IDLECLEAN);
-	radeon_ring_write(rdev, PACKET0(R300_DST_PIPE_CONFIG, 0));
-	radeon_ring_write(rdev, R300_PIPE_AUTO_CONFIG);
-	radeon_ring_write(rdev, PACKET0(GB_SELECT, 0));
-	radeon_ring_write(rdev, 0);
-	radeon_ring_write(rdev, PACKET0(GB_ENABLE, 0));
-	radeon_ring_write(rdev, 0);
-	radeon_ring_write(rdev, PACKET0(R500_SU_REG_DEST, 0));
-	radeon_ring_write(rdev, (1 << rdev->num_gb_pipes) - 1);
-	radeon_ring_write(rdev, PACKET0(VAP_INDEX_OFFSET, 0));
-	radeon_ring_write(rdev, 0);
-	radeon_ring_write(rdev, PACKET0(RB3D_DSTCACHE_CTLSTAT, 0));
-	radeon_ring_write(rdev, RB3D_DC_FLUSH | RB3D_DC_FREE);
-	radeon_ring_write(rdev, PACKET0(ZB_ZCACHE_CTLSTAT, 0));
-	radeon_ring_write(rdev, ZC_FLUSH | ZC_FREE);
-	radeon_ring_write(rdev, PACKET0(WAIT_UNTIL, 0));
-	radeon_ring_write(rdev, WAIT_2D_IDLECLEAN | WAIT_3D_IDLECLEAN);
-	radeon_ring_write(rdev, PACKET0(GB_AA_CONFIG, 0));
-	radeon_ring_write(rdev, 0);
-	radeon_ring_write(rdev, PACKET0(RB3D_DSTCACHE_CTLSTAT, 0));
-	radeon_ring_write(rdev, RB3D_DC_FLUSH | RB3D_DC_FREE);
-	radeon_ring_write(rdev, PACKET0(ZB_ZCACHE_CTLSTAT, 0));
-	radeon_ring_write(rdev, ZC_FLUSH | ZC_FREE);
-	radeon_ring_write(rdev, PACKET0(GB_MSPOS0, 0));
-	radeon_ring_write(rdev,
+	radeon_ring_write(ring, PACKET0(WAIT_UNTIL, 0));
+	radeon_ring_write(ring, WAIT_2D_IDLECLEAN | WAIT_3D_IDLECLEAN);
+	radeon_ring_write(ring, PACKET0(R300_DST_PIPE_CONFIG, 0));
+	radeon_ring_write(ring, R300_PIPE_AUTO_CONFIG);
+	radeon_ring_write(ring, PACKET0(GB_SELECT, 0));
+	radeon_ring_write(ring, 0);
+	radeon_ring_write(ring, PACKET0(GB_ENABLE, 0));
+	radeon_ring_write(ring, 0);
+	radeon_ring_write(ring, PACKET0(R500_SU_REG_DEST, 0));
+	radeon_ring_write(ring, (1 << rdev->num_gb_pipes) - 1);
+	radeon_ring_write(ring, PACKET0(VAP_INDEX_OFFSET, 0));
+	radeon_ring_write(ring, 0);
+	radeon_ring_write(ring, PACKET0(RB3D_DSTCACHE_CTLSTAT, 0));
+	radeon_ring_write(ring, RB3D_DC_FLUSH | RB3D_DC_FREE);
+	radeon_ring_write(ring, PACKET0(ZB_ZCACHE_CTLSTAT, 0));
+	radeon_ring_write(ring, ZC_FLUSH | ZC_FREE);
+	radeon_ring_write(ring, PACKET0(WAIT_UNTIL, 0));
+	radeon_ring_write(ring, WAIT_2D_IDLECLEAN | WAIT_3D_IDLECLEAN);
+	radeon_ring_write(ring, PACKET0(GB_AA_CONFIG, 0));
+	radeon_ring_write(ring, 0);
+	radeon_ring_write(ring, PACKET0(RB3D_DSTCACHE_CTLSTAT, 0));
+	radeon_ring_write(ring, RB3D_DC_FLUSH | RB3D_DC_FREE);
+	radeon_ring_write(ring, PACKET0(ZB_ZCACHE_CTLSTAT, 0));
+	radeon_ring_write(ring, ZC_FLUSH | ZC_FREE);
+	radeon_ring_write(ring, PACKET0(GB_MSPOS0, 0));
+	radeon_ring_write(ring,
 			  ((6 << MS_X0_SHIFT) |
 			   (6 << MS_Y0_SHIFT) |
 			   (6 << MS_X1_SHIFT) |
@@ -101,8 +102,8 @@ void rv515_ring_start(struct radeon_device *rdev)
 			   (6 << MS_Y2_SHIFT) |
 			   (6 << MSBD0_Y_SHIFT) |
 			   (6 << MSBD0_X_SHIFT)));
-	radeon_ring_write(rdev, PACKET0(GB_MSPOS1, 0));
-	radeon_ring_write(rdev,
+	radeon_ring_write(ring, PACKET0(GB_MSPOS1, 0));
+	radeon_ring_write(ring,
 			  ((6 << MS_X3_SHIFT) |
 			   (6 << MS_Y3_SHIFT) |
 			   (6 << MS_X4_SHIFT) |
@@ -110,15 +111,15 @@ void rv515_ring_start(struct radeon_device *rdev)
 			   (6 << MS_X5_SHIFT) |
 			   (6 << MS_Y5_SHIFT) |
 			   (6 << MSBD1_SHIFT)));
-	radeon_ring_write(rdev, PACKET0(GA_ENHANCE, 0));
-	radeon_ring_write(rdev, GA_DEADLOCK_CNTL | GA_FASTSYNC_CNTL);
-	radeon_ring_write(rdev, PACKET0(GA_POLY_MODE, 0));
-	radeon_ring_write(rdev, FRONT_PTYPE_TRIANGE | BACK_PTYPE_TRIANGE);
-	radeon_ring_write(rdev, PACKET0(GA_ROUND_MODE, 0));
-	radeon_ring_write(rdev, GEOMETRY_ROUND_NEAREST | COLOR_ROUND_NEAREST);
-	radeon_ring_write(rdev, PACKET0(0x20C8, 0));
-	radeon_ring_write(rdev, 0);
-	radeon_ring_unlock_commit(rdev);
+	radeon_ring_write(ring, PACKET0(GA_ENHANCE, 0));
+	radeon_ring_write(ring, GA_DEADLOCK_CNTL | GA_FASTSYNC_CNTL);
+	radeon_ring_write(ring, PACKET0(GA_POLY_MODE, 0));
+	radeon_ring_write(ring, FRONT_PTYPE_TRIANGE | BACK_PTYPE_TRIANGE);
+	radeon_ring_write(ring, PACKET0(GA_ROUND_MODE, 0));
+	radeon_ring_write(ring, GEOMETRY_ROUND_NEAREST | COLOR_ROUND_NEAREST);
+	radeon_ring_write(ring, PACKET0(0x20C8, 0));
+	radeon_ring_write(ring, 0);
+	radeon_ring_unlock_commit(rdev, ring);
 }
 
 int rv515_mc_wait_for_idle(struct radeon_device *rdev)
@@ -392,6 +393,12 @@ static int rv515_startup(struct radeon_device *rdev)
 	if (r)
 		return r;
 
+	r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
+	if (r) {
+		dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
+		return r;
+	}
+
 	/* Enable IRQ */
 	rs600_irq_set(rdev);
 	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
@@ -401,9 +408,15 @@ static int rv515_startup(struct radeon_device *rdev)
 		dev_err(rdev->dev, "failed initializing CP (%d).\n", r);
 		return r;
 	}
-	r = r100_ib_init(rdev);
+
+	r = radeon_ib_pool_start(rdev);
+	if (r)
+		return r;
+
+	r = r100_ib_test(rdev);
 	if (r) {
-		dev_err(rdev->dev, "failed initializing IB (%d).\n", r);
+		dev_err(rdev->dev, "failed testing IB (%d).\n", r);
+		rdev->accel_working = false;
 		return r;
 	}
 	return 0;
@@ -428,6 +441,8 @@ int rv515_resume(struct radeon_device *rdev)
 	rv515_clock_startup(rdev);
 	/* Initialize surface registers */
 	radeon_surface_init(rdev);
+
+	rdev->accel_working = true;
 	return rv515_startup(rdev);
 }
 
@@ -524,7 +539,14 @@ int rv515_init(struct radeon_device *rdev)
 	if (r)
 		return r;
 	rv515_set_safe_registers(rdev);
+
+	r = radeon_ib_pool_init(rdev);
 	rdev->accel_working = true;
+	if (r) {
+		dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
+		rdev->accel_working = false;
+	}
+
 	r = rv515_startup(rdev);
 	if (r) {
 		/* Somethings want wront with the accel init stop accel */
diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
index 23ae1c60ab3d..a1668b659ddd 100644
--- a/drivers/gpu/drm/radeon/rv770.c
+++ b/drivers/gpu/drm/radeon/rv770.c
@@ -357,7 +357,7 @@ static int rv770_cp_load_microcode(struct radeon_device *rdev)
 void r700_cp_fini(struct radeon_device *rdev)
 {
 	r700_cp_stop(rdev);
-	radeon_ring_fini(rdev);
+	radeon_ring_fini(rdev, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX]);
 }
 
 /*
@@ -1043,6 +1043,7 @@ int rv770_mc_init(struct radeon_device *rdev)
 
 static int rv770_startup(struct radeon_device *rdev)
 {
+	struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 	int r;
 
 	/* enable pcie gen2 link */
@@ -1082,6 +1083,12 @@ static int rv770_startup(struct radeon_device *rdev)
 	if (r)
 		return r;
 
+	r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
+	if (r) {
+		dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
+		return r;
+	}
+
 	/* Enable IRQ */
 	r = r600_irq_init(rdev);
 	if (r) {
@@ -1091,7 +1098,9 @@ static int rv770_startup(struct radeon_device *rdev)
 	}
 	r600_irq_set(rdev);
 
-	r = radeon_ring_init(rdev, rdev->cp.ring_size);
+	r = radeon_ring_init(rdev, ring, ring->ring_size, RADEON_WB_CP_RPTR_OFFSET,
+			     R600_CP_RB_RPTR, R600_CP_RB_WPTR,
+			     0, 0xfffff, RADEON_CP_PACKET2);
 	if (r)
 		return r;
 	r = rv770_cp_load_microcode(rdev);
@@ -1101,6 +1110,17 @@ static int rv770_startup(struct radeon_device *rdev)
 	if (r)
 		return r;
 
+	r = radeon_ib_pool_start(rdev);
+	if (r)
+		return r;
+
+	r = r600_ib_test(rdev, RADEON_RING_TYPE_GFX_INDEX);
+	if (r) {
+		dev_err(rdev->dev, "IB test failed (%d).\n", r);
+		rdev->accel_working = false;
+		return r;
+	}
+
 	return 0;
 }
 
@@ -1115,18 +1135,13 @@ int rv770_resume(struct radeon_device *rdev)
 	/* post card */
 	atom_asic_init(rdev->mode_info.atom_context);
 
+	rdev->accel_working = true;
 	r = rv770_startup(rdev);
 	if (r) {
 		DRM_ERROR("r600 startup failed on resume\n");
 		return r;
 	}
 
-	r = r600_ib_test(rdev);
-	if (r) {
-		DRM_ERROR("radeon: failed testing IB (%d).\n", r);
-		return r;
-	}
-
 	r = r600_audio_init(rdev);
 	if (r) {
 		dev_err(rdev->dev, "radeon: audio init failed\n");
@@ -1140,13 +1155,14 @@ int rv770_resume(struct radeon_device *rdev)
 int rv770_suspend(struct radeon_device *rdev)
 {
 	r600_audio_fini(rdev);
+	radeon_ib_pool_suspend(rdev);
+	r600_blit_suspend(rdev);
 	/* FIXME: we should wait for ring to be empty */
 	r700_cp_stop(rdev);
-	rdev->cp.ready = false;
+	rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = false;
 	r600_irq_suspend(rdev);
 	radeon_wb_disable(rdev);
 	rv770_pcie_gart_disable(rdev);
-	r600_blit_suspend(rdev);
 
 	return 0;
 }
@@ -1215,8 +1231,8 @@ int rv770_init(struct radeon_device *rdev)
 	if (r)
 		return r;
 
-	rdev->cp.ring_obj = NULL;
-	r600_ring_init(rdev, 1024 * 1024);
+	rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ring_obj = NULL;
+	r600_ring_init(rdev, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX], 1024 * 1024);
 
 	rdev->ih.ring_obj = NULL;
 	r600_ih_ring_init(rdev, 64 * 1024);
@@ -1225,30 +1241,24 @@ int rv770_init(struct radeon_device *rdev)
 	if (r)
 		return r;
 
+	r = radeon_ib_pool_init(rdev);
 	rdev->accel_working = true;
+	if (r) {
+		dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
+		rdev->accel_working = false;
+	}
+
 	r = rv770_startup(rdev);
 	if (r) {
 		dev_err(rdev->dev, "disabling GPU acceleration\n");
 		r700_cp_fini(rdev);
 		r600_irq_fini(rdev);
 		radeon_wb_fini(rdev);
+		r100_ib_fini(rdev);
 		radeon_irq_kms_fini(rdev);
 		rv770_pcie_gart_fini(rdev);
 		rdev->accel_working = false;
 	}
-	if (rdev->accel_working) {
-		r = radeon_ib_pool_init(rdev);
-		if (r) {
-			dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
-			rdev->accel_working = false;
-		} else {
-			r = r600_ib_test(rdev);
-			if (r) {
-				dev_err(rdev->dev, "IB test failed (%d).\n", r);
-				rdev->accel_working = false;
-			}
-		}
-	}
 
 	r = r600_audio_init(rdev);
 	if (r) {
@@ -1265,11 +1275,12 @@ void rv770_fini(struct radeon_device *rdev)
 	r700_cp_fini(rdev);
 	r600_irq_fini(rdev);
 	radeon_wb_fini(rdev);
-	radeon_ib_pool_fini(rdev);
+	r100_ib_fini(rdev);
 	radeon_irq_kms_fini(rdev);
 	rv770_pcie_gart_fini(rdev);
 	r600_vram_scratch_fini(rdev);
 	radeon_gem_fini(rdev);
+	radeon_semaphore_driver_fini(rdev);
 	radeon_fence_driver_fini(rdev);
 	radeon_agp_fini(rdev);
 	radeon_bo_fini(rdev);
diff --git a/drivers/gpu/drm/savage/savage_drv.c b/drivers/gpu/drm/savage/savage_drv.c
index 5468d1cd3296..89afe0b83643 100644
--- a/drivers/gpu/drm/savage/savage_drv.c
+++ b/drivers/gpu/drm/savage/savage_drv.c
@@ -35,6 +35,17 @@ static struct pci_device_id pciidlist[] = {
 	savage_PCI_IDS
 };
 
+static const struct file_operations savage_driver_fops = {
+	.owner = THIS_MODULE,
+	.open = drm_open,
+	.release = drm_release,
+	.unlocked_ioctl = drm_ioctl,
+	.mmap = drm_mmap,
+	.poll = drm_poll,
+	.fasync = drm_fasync,
+	.llseek = noop_llseek,
+};
+
 static struct drm_driver driver = {
 	.driver_features =
 	    DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_HAVE_DMA | DRIVER_PCI_DMA,
@@ -46,17 +57,7 @@ static struct drm_driver driver = {
 	.reclaim_buffers = savage_reclaim_buffers,
 	.ioctls = savage_ioctls,
 	.dma_ioctl = savage_bci_buffers,
-	.fops = {
-		 .owner = THIS_MODULE,
-		 .open = drm_open,
-		 .release = drm_release,
-		 .unlocked_ioctl = drm_ioctl,
-		 .mmap = drm_mmap,
-		 .poll = drm_poll,
-		 .fasync = drm_fasync,
-		 .llseek = noop_llseek,
-	},
-
+	.fops = &savage_driver_fops,
 	.name = DRIVER_NAME,
 	.desc = DRIVER_DESC,
 	.date = DRIVER_DATE,
diff --git a/drivers/gpu/drm/sis/sis_drv.c b/drivers/gpu/drm/sis/sis_drv.c
index a9c5716bea4e..06da063ece2e 100644
--- a/drivers/gpu/drm/sis/sis_drv.c
+++ b/drivers/gpu/drm/sis/sis_drv.c
@@ -48,9 +48,7 @@ static int sis_driver_load(struct drm_device *dev, unsigned long chipset)
 
 	dev->dev_private = (void *)dev_priv;
 	dev_priv->chipset = chipset;
-	ret = drm_sman_init(&dev_priv->sman, 2, 12, 8);
-	if (ret)
-		kfree(dev_priv);
+	idr_init(&dev->object_name_idr);
 
 	return ret;
 }
@@ -59,32 +57,60 @@ static int sis_driver_unload(struct drm_device *dev)
 {
 	drm_sis_private_t *dev_priv = dev->dev_private;
 
-	drm_sman_takedown(&dev_priv->sman);
+	idr_remove_all(&dev_priv->object_idr);
+	idr_destroy(&dev_priv->object_idr);
+
 	kfree(dev_priv);
 
 	return 0;
 }
 
+static const struct file_operations sis_driver_fops = {
+	.owner = THIS_MODULE,
+	.open = drm_open,
+	.release = drm_release,
+	.unlocked_ioctl = drm_ioctl,
+	.mmap = drm_mmap,
+	.poll = drm_poll,
+	.fasync = drm_fasync,
+	.llseek = noop_llseek,
+};
+
+static int sis_driver_open(struct drm_device *dev, struct drm_file *file)
+{
+	struct sis_file_private *file_priv;
+
+	DRM_DEBUG_DRIVER("\n");
+	file_priv = kmalloc(sizeof(*file_priv), GFP_KERNEL);
+	if (!file_priv)
+		return -ENOMEM;
+
+	file->driver_priv = file_priv;
+
+	INIT_LIST_HEAD(&file_priv->obj_list);
+
+	return 0;
+}
+
+void sis_driver_postclose(struct drm_device *dev, struct drm_file *file)
+{
+	struct sis_file_private *file_priv = file->driver_priv;
+
+	kfree(file_priv);
+}
+
 static struct drm_driver driver = {
 	.driver_features = DRIVER_USE_AGP | DRIVER_USE_MTRR,
 	.load = sis_driver_load,
 	.unload = sis_driver_unload,
+	.open = sis_driver_open,
+	.postclose = sis_driver_postclose,
 	.dma_quiescent = sis_idle,
 	.reclaim_buffers = NULL,
 	.reclaim_buffers_idlelocked = sis_reclaim_buffers_locked,
 	.lastclose = sis_lastclose,
 	.ioctls = sis_ioctls,
-	.fops = {
-		 .owner = THIS_MODULE,
-		 .open = drm_open,
-		 .release = drm_release,
-		 .unlocked_ioctl = drm_ioctl,
-		 .mmap = drm_mmap,
-		 .poll = drm_poll,
-		 .fasync = drm_fasync,
-		 .llseek = noop_llseek,
-	},
-
+	.fops = &sis_driver_fops,
 	.name = DRIVER_NAME,
 	.desc = DRIVER_DESC,
 	.date = DRIVER_DATE,
diff --git a/drivers/gpu/drm/sis/sis_drv.h b/drivers/gpu/drm/sis/sis_drv.h
index 194303c177ad..573758b2d2d6 100644
--- a/drivers/gpu/drm/sis/sis_drv.h
+++ b/drivers/gpu/drm/sis/sis_drv.h
@@ -44,7 +44,7 @@ enum sis_family {
 	SIS_CHIP_315 = 1,
 };
 
-#include "drm_sman.h"
+#include "drm_mm.h"
 
 
 #define SIS_BASE (dev_priv->mmio)
@@ -54,12 +54,15 @@ enum sis_family {
 typedef struct drm_sis_private {
 	drm_local_map_t *mmio;
 	unsigned int idle_fault;
-	struct drm_sman sman;
 	unsigned int chipset;
 	int vram_initialized;
 	int agp_initialized;
 	unsigned long vram_offset;
 	unsigned long agp_offset;
+	struct drm_mm vram_mm;
+	struct drm_mm agp_mm;
+	/** Mapping of userspace keys to mm objects */
+	struct idr object_idr;
 } drm_sis_private_t;
 
 extern int sis_idle(struct drm_device *dev);
diff --git a/drivers/gpu/drm/sis/sis_mm.c b/drivers/gpu/drm/sis/sis_mm.c
index 7fe2b63412ce..dd4a316c3d74 100644
--- a/drivers/gpu/drm/sis/sis_mm.c
+++ b/drivers/gpu/drm/sis/sis_mm.c
@@ -41,40 +41,18 @@
 #define AGP_TYPE 1
 
 
+struct sis_memblock {
+	struct drm_mm_node mm_node;
+	struct sis_memreq req;
+	struct list_head owner_list;
+};
+
 #if defined(CONFIG_FB_SIS) || defined(CONFIG_FB_SIS_MODULE)
 /* fb management via fb device */
 
 #define SIS_MM_ALIGN_SHIFT 0
 #define SIS_MM_ALIGN_MASK 0
 
-static void *sis_sman_mm_allocate(void *private, unsigned long size,
-				  unsigned alignment)
-{
-	struct sis_memreq req;
-
-	req.size = size;
-	sis_malloc(&req);
-	if (req.size == 0)
-		return NULL;
-	else
-		return (void *)(unsigned long)~req.offset;
-}
-
-static void sis_sman_mm_free(void *private, void *ref)
-{
-	sis_free(~((unsigned long)ref));
-}
-
-static void sis_sman_mm_destroy(void *private)
-{
-	;
-}
-
-static unsigned long sis_sman_mm_offset(void *private, void *ref)
-{
-	return ~((unsigned long)ref);
-}
-
 #else /* CONFIG_FB_SIS[_MODULE] */
 
 #define SIS_MM_ALIGN_SHIFT 4
@@ -86,30 +64,11 @@ static int sis_fb_init(struct drm_device *dev, void *data, struct drm_file *file
 {
 	drm_sis_private_t *dev_priv = dev->dev_private;
 	drm_sis_fb_t *fb = data;
-	int ret;
 
 	mutex_lock(&dev->struct_mutex);
-#if defined(CONFIG_FB_SIS) || defined(CONFIG_FB_SIS_MODULE)
-	{
-		struct drm_sman_mm sman_mm;
-		sman_mm.private = (void *)0xFFFFFFFF;
-		sman_mm.allocate = sis_sman_mm_allocate;
-		sman_mm.free = sis_sman_mm_free;
-		sman_mm.destroy = sis_sman_mm_destroy;
-		sman_mm.offset = sis_sman_mm_offset;
-		ret =
-		    drm_sman_set_manager(&dev_priv->sman, VIDEO_TYPE, &sman_mm);
-	}
-#else
-	ret = drm_sman_set_range(&dev_priv->sman, VIDEO_TYPE, 0,
-				 fb->size >> SIS_MM_ALIGN_SHIFT);
-#endif
-
-	if (ret) {
-		DRM_ERROR("VRAM memory manager initialisation error\n");
-		mutex_unlock(&dev->struct_mutex);
-		return ret;
-	}
+	/* Unconditionally init the drm_mm, even though we don't use it when the
+	 * fb sis driver is available - make cleanup easier. */
+	drm_mm_init(&dev_priv->vram_mm, 0, fb->size >> SIS_MM_ALIGN_SHIFT);
 
 	dev_priv->vram_initialized = 1;
 	dev_priv->vram_offset = fb->offset;
@@ -120,13 +79,15 @@ static int sis_fb_init(struct drm_device *dev, void *data, struct drm_file *file
 	return 0;
 }
 
-static int sis_drm_alloc(struct drm_device *dev, struct drm_file *file_priv,
+static int sis_drm_alloc(struct drm_device *dev, struct drm_file *file,
 			 void *data, int pool)
 {
 	drm_sis_private_t *dev_priv = dev->dev_private;
 	drm_sis_mem_t *mem = data;
-	int retval = 0;
-	struct drm_memblock_item *item;
+	int retval = 0, user_key;
+	struct sis_memblock *item;
+	struct sis_file_private *file_priv = file->driver_priv;
+	unsigned long offset;
 
 	mutex_lock(&dev->struct_mutex);
 
@@ -138,25 +99,68 @@ static int sis_drm_alloc(struct drm_device *dev, struct drm_file *file_priv,
 		return -EINVAL;
 	}
 
-	mem->size = (mem->size + SIS_MM_ALIGN_MASK) >> SIS_MM_ALIGN_SHIFT;
-	item = drm_sman_alloc(&dev_priv->sman, pool, mem->size, 0,
-			      (unsigned long)file_priv);
+	item = kzalloc(sizeof(*item), GFP_KERNEL);
+	if (!item) {
+		retval = -ENOMEM;
+		goto fail_alloc;
+	}
 
-	mutex_unlock(&dev->struct_mutex);
-	if (item) {
-		mem->offset = ((pool == 0) ?
-			      dev_priv->vram_offset : dev_priv->agp_offset) +
-		    (item->mm->
-		     offset(item->mm, item->mm_info) << SIS_MM_ALIGN_SHIFT);
-		mem->free = item->user_hash.key;
-		mem->size = mem->size << SIS_MM_ALIGN_SHIFT;
+	mem->size = (mem->size + SIS_MM_ALIGN_MASK) >> SIS_MM_ALIGN_SHIFT;
+	if (pool == AGP_TYPE) {
+		retval = drm_mm_insert_node(&dev_priv->agp_mm,
+					    &item->mm_node,
+					    mem->size, 0);
+		offset = item->mm_node.start;
 	} else {
-		mem->offset = 0;
-		mem->size = 0;
-		mem->free = 0;
+#if defined(CONFIG_FB_SIS) || defined(CONFIG_FB_SIS_MODULE)
+		item->req.size = mem->size;
+		sis_malloc(&item->req);
+		if (item->req.size == 0)
+			retval = -ENOMEM;
+		offset = item->req.offset;
+#else
+		retval = drm_mm_insert_node(&dev_priv->vram_mm,
+					    &item->mm_node,
+					    mem->size, 0);
+		offset = item->mm_node.start;
+#endif
+	}
+	if (retval)
+		goto fail_alloc;
+
+again:
+	if (idr_pre_get(&dev_priv->object_idr, GFP_KERNEL) == 0) {
 		retval = -ENOMEM;
+		goto fail_idr;
 	}
 
+	retval = idr_get_new_above(&dev_priv->object_idr, item, 1, &user_key);
+	if (retval == -EAGAIN)
+		goto again;
+	if (retval)
+		goto fail_idr;
+
+	list_add(&item->owner_list, &file_priv->obj_list);
+	mutex_unlock(&dev->struct_mutex);
+
+	mem->offset = ((pool == 0) ?
+		      dev_priv->vram_offset : dev_priv->agp_offset) +
+	    (offset << SIS_MM_ALIGN_SHIFT);
+	mem->free = user_key;
+	mem->size = mem->size << SIS_MM_ALIGN_SHIFT;
+
+	return 0;
+
+fail_idr:
+	drm_mm_remove_node(&item->mm_node);
+fail_alloc:
+	kfree(item);
+	mutex_unlock(&dev->struct_mutex);
+
+	mem->offset = 0;
+	mem->size = 0;
+	mem->free = 0;
+
 	DRM_DEBUG("alloc %d, size = %d, offset = %d\n", pool, mem->size,
 		  mem->offset);
 
@@ -167,14 +171,28 @@ static int sis_drm_free(struct drm_device *dev, void *data, struct drm_file *fil
 {
 	drm_sis_private_t *dev_priv = dev->dev_private;
 	drm_sis_mem_t *mem = data;
-	int ret;
+	struct sis_memblock *obj;
 
 	mutex_lock(&dev->struct_mutex);
-	ret = drm_sman_free_key(&dev_priv->sman, mem->free);
+	obj = idr_find(&dev_priv->object_idr, mem->free);
+	if (obj == NULL) {
+		mutex_unlock(&dev->struct_mutex);
+		return -EINVAL;
+	}
+
+	idr_remove(&dev_priv->object_idr, mem->free);
+	list_del(&obj->owner_list);
+	if (drm_mm_node_allocated(&obj->mm_node))
+		drm_mm_remove_node(&obj->mm_node);
+#if defined(CONFIG_FB_SIS) || defined(CONFIG_FB_SIS_MODULE)
+	else
+		sis_free(obj->req.offset);
+#endif
+	kfree(obj);
 	mutex_unlock(&dev->struct_mutex);
 	DRM_DEBUG("free = 0x%lx\n", mem->free);
 
-	return ret;
+	return 0;
 }
 
 static int sis_fb_alloc(struct drm_device *dev, void *data,
@@ -188,18 +206,10 @@ static int sis_ioctl_agp_init(struct drm_device *dev, void *data,
 {
 	drm_sis_private_t *dev_priv = dev->dev_private;
 	drm_sis_agp_t *agp = data;
-	int ret;
 	dev_priv = dev->dev_private;
 
 	mutex_lock(&dev->struct_mutex);
-	ret = drm_sman_set_range(&dev_priv->sman, AGP_TYPE, 0,
-				 agp->size >> SIS_MM_ALIGN_SHIFT);
-
-	if (ret) {
-		DRM_ERROR("AGP memory manager initialisation error\n");
-		mutex_unlock(&dev->struct_mutex);
-		return ret;
-	}
+	drm_mm_init(&dev_priv->agp_mm, 0, agp->size >> SIS_MM_ALIGN_SHIFT);
 
 	dev_priv->agp_initialized = 1;
 	dev_priv->agp_offset = agp->offset;
@@ -293,20 +303,26 @@ void sis_lastclose(struct drm_device *dev)
 		return;
 
 	mutex_lock(&dev->struct_mutex);
-	drm_sman_cleanup(&dev_priv->sman);
-	dev_priv->vram_initialized = 0;
-	dev_priv->agp_initialized = 0;
+	if (dev_priv->vram_initialized) {
+		drm_mm_takedown(&dev_priv->vram_mm);
+		dev_priv->vram_initialized = 0;
+	}
+	if (dev_priv->agp_initialized) {
+		drm_mm_takedown(&dev_priv->agp_mm);
+		dev_priv->agp_initialized = 0;
+	}
 	dev_priv->mmio = NULL;
 	mutex_unlock(&dev->struct_mutex);
 }
 
 void sis_reclaim_buffers_locked(struct drm_device *dev,
-				struct drm_file *file_priv)
+				struct drm_file *file)
 {
-	drm_sis_private_t *dev_priv = dev->dev_private;
+	struct sis_file_private *file_priv = file->driver_priv;
+	struct sis_memblock *entry, *next;
 
 	mutex_lock(&dev->struct_mutex);
-	if (drm_sman_owner_clean(&dev_priv->sman, (unsigned long)file_priv)) {
+	if (list_empty(&file_priv->obj_list)) {
 		mutex_unlock(&dev->struct_mutex);
 		return;
 	}
@@ -314,7 +330,18 @@ void sis_reclaim_buffers_locked(struct drm_device *dev,
 	if (dev->driver->dma_quiescent)
 		dev->driver->dma_quiescent(dev);
 
-	drm_sman_owner_cleanup(&dev_priv->sman, (unsigned long)file_priv);
+
+	list_for_each_entry_safe(entry, next, &file_priv->obj_list,
+				 owner_list) {
+		list_del(&entry->owner_list);
+		if (drm_mm_node_allocated(&entry->mm_node))
+			drm_mm_remove_node(&entry->mm_node);
+#if defined(CONFIG_FB_SIS) || defined(CONFIG_FB_SIS_MODULE)
+		else
+			sis_free(entry->req.offset);
+#endif
+		kfree(entry);
+	}
 	mutex_unlock(&dev->struct_mutex);
 	return;
 }
diff --git a/drivers/gpu/drm/tdfx/tdfx_drv.c b/drivers/gpu/drm/tdfx/tdfx_drv.c
index cda29911e332..1613c78544c0 100644
--- a/drivers/gpu/drm/tdfx/tdfx_drv.c
+++ b/drivers/gpu/drm/tdfx/tdfx_drv.c
@@ -41,20 +41,21 @@ static struct pci_device_id pciidlist[] = {
 	tdfx_PCI_IDS
 };
 
+static const struct file_operations tdfx_driver_fops = {
+	.owner = THIS_MODULE,
+	.open = drm_open,
+	.release = drm_release,
+	.unlocked_ioctl = drm_ioctl,
+	.mmap = drm_mmap,
+	.poll = drm_poll,
+	.fasync = drm_fasync,
+	.llseek = noop_llseek,
+};
+
 static struct drm_driver driver = {
 	.driver_features = DRIVER_USE_MTRR,
 	.reclaim_buffers = drm_core_reclaim_buffers,
-	.fops = {
-		 .owner = THIS_MODULE,
-		 .open = drm_open,
-		 .release = drm_release,
-		 .unlocked_ioctl = drm_ioctl,
-		 .mmap = drm_mmap,
-		 .poll = drm_poll,
-		 .fasync = drm_fasync,
-		 .llseek = noop_llseek,
-	},
-
+	.fops = &tdfx_driver_fops,
 	.name = DRIVER_NAME,
 	.desc = DRIVER_DESC,
 	.date = DRIVER_DATE,
diff --git a/drivers/gpu/drm/ttm/Makefile b/drivers/gpu/drm/ttm/Makefile
index f3cf6f02c997..b2b33dde2afb 100644
--- a/drivers/gpu/drm/ttm/Makefile
+++ b/drivers/gpu/drm/ttm/Makefile
@@ -7,4 +7,8 @@ ttm-y := ttm_agp_backend.o ttm_memory.o ttm_tt.o ttm_bo.o \
 	ttm_object.o ttm_lock.o ttm_execbuf_util.o ttm_page_alloc.o \
 	ttm_bo_manager.o
 
+ifeq ($(CONFIG_SWIOTLB),y)
+ttm-y += ttm_page_alloc_dma.o
+endif
+
 obj-$(CONFIG_DRM_TTM) += ttm.o
diff --git a/drivers/gpu/drm/ttm/ttm_agp_backend.c b/drivers/gpu/drm/ttm/ttm_agp_backend.c
index 1c4a72f681c1..747c1413fc95 100644
--- a/drivers/gpu/drm/ttm/ttm_agp_backend.c
+++ b/drivers/gpu/drm/ttm/ttm_agp_backend.c
@@ -31,6 +31,7 @@
 
 #include "ttm/ttm_module.h"
 #include "ttm/ttm_bo_driver.h"
+#include "ttm/ttm_page_alloc.h"
 #ifdef TTM_HAS_AGP
 #include "ttm/ttm_placement.h"
 #include <linux/agp_backend.h>
@@ -40,45 +41,33 @@
 #include <asm/agp.h>
 
 struct ttm_agp_backend {
-	struct ttm_backend backend;
+	struct ttm_tt ttm;
 	struct agp_memory *mem;
 	struct agp_bridge_data *bridge;
 };
 
-static int ttm_agp_populate(struct ttm_backend *backend,
-			    unsigned long num_pages, struct page **pages,
-			    struct page *dummy_read_page,
-			    dma_addr_t *dma_addrs)
+static int ttm_agp_bind(struct ttm_tt *ttm, struct ttm_mem_reg *bo_mem)
 {
-	struct ttm_agp_backend *agp_be =
-	    container_of(backend, struct ttm_agp_backend, backend);
-	struct page **cur_page, **last_page = pages + num_pages;
+	struct ttm_agp_backend *agp_be = container_of(ttm, struct ttm_agp_backend, ttm);
+	struct drm_mm_node *node = bo_mem->mm_node;
 	struct agp_memory *mem;
+	int ret, cached = (bo_mem->placement & TTM_PL_FLAG_CACHED);
+	unsigned i;
 
-	mem = agp_allocate_memory(agp_be->bridge, num_pages, AGP_USER_MEMORY);
+	mem = agp_allocate_memory(agp_be->bridge, ttm->num_pages, AGP_USER_MEMORY);
 	if (unlikely(mem == NULL))
 		return -ENOMEM;
 
 	mem->page_count = 0;
-	for (cur_page = pages; cur_page < last_page; ++cur_page) {
-		struct page *page = *cur_page;
+	for (i = 0; i < ttm->num_pages; i++) {
+		struct page *page = ttm->pages[i];
+
 		if (!page)
-			page = dummy_read_page;
+			page = ttm->dummy_read_page;
 
 		mem->pages[mem->page_count++] = page;
 	}
 	agp_be->mem = mem;
-	return 0;
-}
-
-static int ttm_agp_bind(struct ttm_backend *backend, struct ttm_mem_reg *bo_mem)
-{
-	struct ttm_agp_backend *agp_be =
-	    container_of(backend, struct ttm_agp_backend, backend);
-	struct drm_mm_node *node = bo_mem->mm_node;
-	struct agp_memory *mem = agp_be->mem;
-	int cached = (bo_mem->placement & TTM_PL_FLAG_CACHED);
-	int ret;
 
 	mem->is_flushed = 1;
 	mem->type = (cached) ? AGP_USER_CACHED_MEMORY : AGP_USER_MEMORY;
@@ -90,50 +79,39 @@ static int ttm_agp_bind(struct ttm_backend *backend, struct ttm_mem_reg *bo_mem)
 	return ret;
 }
 
-static int ttm_agp_unbind(struct ttm_backend *backend)
+static int ttm_agp_unbind(struct ttm_tt *ttm)
 {
-	struct ttm_agp_backend *agp_be =
-	    container_of(backend, struct ttm_agp_backend, backend);
+	struct ttm_agp_backend *agp_be = container_of(ttm, struct ttm_agp_backend, ttm);
 
-	if (agp_be->mem->is_bound)
-		return agp_unbind_memory(agp_be->mem);
-	else
-		return 0;
-}
-
-static void ttm_agp_clear(struct ttm_backend *backend)
-{
-	struct ttm_agp_backend *agp_be =
-	    container_of(backend, struct ttm_agp_backend, backend);
-	struct agp_memory *mem = agp_be->mem;
-
-	if (mem) {
-		ttm_agp_unbind(backend);
-		agp_free_memory(mem);
+	if (agp_be->mem) {
+		if (agp_be->mem->is_bound)
+			return agp_unbind_memory(agp_be->mem);
+		agp_free_memory(agp_be->mem);
+		agp_be->mem = NULL;
 	}
-	agp_be->mem = NULL;
+	return 0;
 }
 
-static void ttm_agp_destroy(struct ttm_backend *backend)
+static void ttm_agp_destroy(struct ttm_tt *ttm)
 {
-	struct ttm_agp_backend *agp_be =
-	    container_of(backend, struct ttm_agp_backend, backend);
+	struct ttm_agp_backend *agp_be = container_of(ttm, struct ttm_agp_backend, ttm);
 
 	if (agp_be->mem)
-		ttm_agp_clear(backend);
+		ttm_agp_unbind(ttm);
+	ttm_tt_fini(ttm);
 	kfree(agp_be);
 }
 
 static struct ttm_backend_func ttm_agp_func = {
-	.populate = ttm_agp_populate,
-	.clear = ttm_agp_clear,
 	.bind = ttm_agp_bind,
 	.unbind = ttm_agp_unbind,
 	.destroy = ttm_agp_destroy,
 };
 
-struct ttm_backend *ttm_agp_backend_init(struct ttm_bo_device *bdev,
-					 struct agp_bridge_data *bridge)
+struct ttm_tt *ttm_agp_tt_create(struct ttm_bo_device *bdev,
+				 struct agp_bridge_data *bridge,
+				 unsigned long size, uint32_t page_flags,
+				 struct page *dummy_read_page)
 {
 	struct ttm_agp_backend *agp_be;
 
@@ -143,10 +121,29 @@ struct ttm_backend *ttm_agp_backend_init(struct ttm_bo_device *bdev,
 
 	agp_be->mem = NULL;
 	agp_be->bridge = bridge;
-	agp_be->backend.func = &ttm_agp_func;
-	agp_be->backend.bdev = bdev;
-	return &agp_be->backend;
+	agp_be->ttm.func = &ttm_agp_func;
+
+	if (ttm_tt_init(&agp_be->ttm, bdev, size, page_flags, dummy_read_page)) {
+		return NULL;
+	}
+
+	return &agp_be->ttm;
+}
+EXPORT_SYMBOL(ttm_agp_tt_create);
+
+int ttm_agp_tt_populate(struct ttm_tt *ttm)
+{
+	if (ttm->state != tt_unpopulated)
+		return 0;
+
+	return ttm_pool_populate(ttm);
+}
+EXPORT_SYMBOL(ttm_agp_tt_populate);
+
+void ttm_agp_tt_unpopulate(struct ttm_tt *ttm)
+{
+	ttm_pool_unpopulate(ttm);
 }
-EXPORT_SYMBOL(ttm_agp_backend_init);
+EXPORT_SYMBOL(ttm_agp_tt_unpopulate);
 
 #endif
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 0bb0f5f713e6..2f0eab66ece6 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -137,6 +137,7 @@ static void ttm_bo_release_list(struct kref *list_kref)
 	struct ttm_buffer_object *bo =
 	    container_of(list_kref, struct ttm_buffer_object, list_kref);
 	struct ttm_bo_device *bdev = bo->bdev;
+	size_t acc_size = bo->acc_size;
 
 	BUG_ON(atomic_read(&bo->list_kref.refcount));
 	BUG_ON(atomic_read(&bo->kref.refcount));
@@ -152,9 +153,9 @@ static void ttm_bo_release_list(struct kref *list_kref)
 	if (bo->destroy)
 		bo->destroy(bo);
 	else {
-		ttm_mem_global_free(bdev->glob->mem_glob, bo->acc_size);
 		kfree(bo);
 	}
+	ttm_mem_global_free(bdev->glob->mem_glob, acc_size);
 }
 
 int ttm_bo_wait_unreserved(struct ttm_buffer_object *bo, bool interruptible)
@@ -337,27 +338,11 @@ static int ttm_bo_add_ttm(struct ttm_buffer_object *bo, bool zero_alloc)
 		if (zero_alloc)
 			page_flags |= TTM_PAGE_FLAG_ZERO_ALLOC;
 	case ttm_bo_type_kernel:
-		bo->ttm = ttm_tt_create(bdev, bo->num_pages << PAGE_SHIFT,
-					page_flags, glob->dummy_read_page);
+		bo->ttm = bdev->driver->ttm_tt_create(bdev, bo->num_pages << PAGE_SHIFT,
+						      page_flags, glob->dummy_read_page);
 		if (unlikely(bo->ttm == NULL))
 			ret = -ENOMEM;
 		break;
-	case ttm_bo_type_user:
-		bo->ttm = ttm_tt_create(bdev, bo->num_pages << PAGE_SHIFT,
-					page_flags | TTM_PAGE_FLAG_USER,
-					glob->dummy_read_page);
-		if (unlikely(bo->ttm == NULL)) {
-			ret = -ENOMEM;
-			break;
-		}
-
-		ret = ttm_tt_set_user(bo->ttm, current,
-				      bo->buffer_start, bo->num_pages);
-		if (unlikely(ret != 0)) {
-			ttm_tt_destroy(bo->ttm);
-			bo->ttm = NULL;
-		}
-		break;
 	default:
 		printk(KERN_ERR TTM_PFX "Illegal buffer object type\n");
 		ret = -EINVAL;
@@ -419,9 +404,6 @@ static int ttm_bo_handle_move_mem(struct ttm_buffer_object *bo,
 		}
 	}
 
-	if (bdev->driver->move_notify)
-		bdev->driver->move_notify(bo, mem);
-
 	if (!(old_man->flags & TTM_MEMTYPE_FLAG_FIXED) &&
 	    !(new_man->flags & TTM_MEMTYPE_FLAG_FIXED))
 		ret = ttm_bo_move_ttm(bo, evict, no_wait_reserve, no_wait_gpu, mem);
@@ -434,6 +416,9 @@ static int ttm_bo_handle_move_mem(struct ttm_buffer_object *bo,
 	if (ret)
 		goto out_err;
 
+	if (bdev->driver->move_notify)
+		bdev->driver->move_notify(bo, mem);
+
 moved:
 	if (bo->evicted) {
 		ret = bdev->driver->invalidate_caches(bdev, bo->mem.placement);
@@ -472,6 +457,9 @@ out_err:
 
 static void ttm_bo_cleanup_memtype_use(struct ttm_buffer_object *bo)
 {
+	if (bo->bdev->driver->move_notify)
+		bo->bdev->driver->move_notify(bo, NULL);
+
 	if (bo->ttm) {
 		ttm_tt_unbind(bo->ttm);
 		ttm_tt_destroy(bo->ttm);
@@ -913,16 +901,12 @@ static uint32_t ttm_bo_select_caching(struct ttm_mem_type_manager *man,
 }
 
 static bool ttm_bo_mt_compatible(struct ttm_mem_type_manager *man,
-				 bool disallow_fixed,
 				 uint32_t mem_type,
 				 uint32_t proposed_placement,
 				 uint32_t *masked_placement)
 {
 	uint32_t cur_flags = ttm_bo_type_flags(mem_type);
 
-	if ((man->flags & TTM_MEMTYPE_FLAG_FIXED) && disallow_fixed)
-		return false;
-
 	if ((cur_flags & proposed_placement & TTM_PL_MASK_MEM) == 0)
 		return false;
 
@@ -967,7 +951,6 @@ int ttm_bo_mem_space(struct ttm_buffer_object *bo,
 		man = &bdev->man[mem_type];
 
 		type_ok = ttm_bo_mt_compatible(man,
-						bo->type == ttm_bo_type_user,
 						mem_type,
 						placement->placement[i],
 						&cur_flags);
@@ -1015,7 +998,6 @@ int ttm_bo_mem_space(struct ttm_buffer_object *bo,
 		if (!man->has_type)
 			continue;
 		if (!ttm_bo_mt_compatible(man,
-						bo->type == ttm_bo_type_user,
 						mem_type,
 						placement->busy_placement[i],
 						&cur_flags))
@@ -1185,6 +1167,17 @@ int ttm_bo_init(struct ttm_bo_device *bdev,
 {
 	int ret = 0;
 	unsigned long num_pages;
+	struct ttm_mem_global *mem_glob = bdev->glob->mem_glob;
+
+	ret = ttm_mem_global_alloc(mem_glob, acc_size, false, false);
+	if (ret) {
+		printk(KERN_ERR TTM_PFX "Out of kernel memory.\n");
+		if (destroy)
+			(*destroy)(bo);
+		else
+			kfree(bo);
+		return -ENOMEM;
+	}
 
 	size += buffer_start & ~PAGE_MASK;
 	num_pages = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
@@ -1255,14 +1248,34 @@ out_err:
 }
 EXPORT_SYMBOL(ttm_bo_init);
 
-static inline size_t ttm_bo_size(struct ttm_bo_global *glob,
-				 unsigned long num_pages)
+size_t ttm_bo_acc_size(struct ttm_bo_device *bdev,
+		       unsigned long bo_size,
+		       unsigned struct_size)
 {
-	size_t page_array_size = (num_pages * sizeof(void *) + PAGE_SIZE - 1) &
-	    PAGE_MASK;
+	unsigned npages = (PAGE_ALIGN(bo_size)) >> PAGE_SHIFT;
+	size_t size = 0;
 
-	return glob->ttm_bo_size + 2 * page_array_size;
+	size += ttm_round_pot(struct_size);
+	size += PAGE_ALIGN(npages * sizeof(void *));
+	size += ttm_round_pot(sizeof(struct ttm_tt));
+	return size;
 }
+EXPORT_SYMBOL(ttm_bo_acc_size);
+
+size_t ttm_bo_dma_acc_size(struct ttm_bo_device *bdev,
+			   unsigned long bo_size,
+			   unsigned struct_size)
+{
+	unsigned npages = (PAGE_ALIGN(bo_size)) >> PAGE_SHIFT;
+	size_t size = 0;
+
+	size += ttm_round_pot(struct_size);
+	size += PAGE_ALIGN(npages * sizeof(void *));
+	size += PAGE_ALIGN(npages * sizeof(dma_addr_t));
+	size += ttm_round_pot(sizeof(struct ttm_dma_tt));
+	return size;
+}
+EXPORT_SYMBOL(ttm_bo_dma_acc_size);
 
 int ttm_bo_create(struct ttm_bo_device *bdev,
 			unsigned long size,
@@ -1276,10 +1289,10 @@ int ttm_bo_create(struct ttm_bo_device *bdev,
 {
 	struct ttm_buffer_object *bo;
 	struct ttm_mem_global *mem_glob = bdev->glob->mem_glob;
+	size_t acc_size;
 	int ret;
 
-	size_t acc_size =
-	    ttm_bo_size(bdev->glob, (size + PAGE_SIZE - 1) >> PAGE_SHIFT);
+	acc_size = ttm_bo_acc_size(bdev, size, sizeof(struct ttm_buffer_object));
 	ret = ttm_mem_global_alloc(mem_glob, acc_size, false, false);
 	if (unlikely(ret != 0))
 		return ret;
@@ -1465,13 +1478,6 @@ int ttm_bo_global_init(struct drm_global_reference *ref)
 		goto out_no_shrink;
 	}
 
-	glob->ttm_bo_extra_size =
-		ttm_round_pot(sizeof(struct ttm_tt)) +
-		ttm_round_pot(sizeof(struct ttm_backend));
-
-	glob->ttm_bo_size = glob->ttm_bo_extra_size +
-		ttm_round_pot(sizeof(struct ttm_buffer_object));
-
 	atomic_set(&glob->bo_count, 0);
 
 	ret = kobject_init_and_add(
diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c
index 082fcaea583f..f8187ead7b37 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_util.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_util.c
@@ -244,7 +244,7 @@ static int ttm_copy_io_ttm_page(struct ttm_tt *ttm, void *src,
 				unsigned long page,
 				pgprot_t prot)
 {
-	struct page *d = ttm_tt_get_page(ttm, page);
+	struct page *d = ttm->pages[page];
 	void *dst;
 
 	if (!d)
@@ -281,7 +281,7 @@ static int ttm_copy_ttm_io_page(struct ttm_tt *ttm, void *dst,
 				unsigned long page,
 				pgprot_t prot)
 {
-	struct page *s = ttm_tt_get_page(ttm, page);
+	struct page *s = ttm->pages[page];
 	void *src;
 
 	if (!s)
@@ -342,6 +342,12 @@ int ttm_bo_move_memcpy(struct ttm_buffer_object *bo,
 	if (old_iomap == NULL && ttm == NULL)
 		goto out2;
 
+	if (ttm->state == tt_unpopulated) {
+		ret = ttm->bdev->driver->ttm_tt_populate(ttm);
+		if (ret)
+			goto out1;
+	}
+
 	add = 0;
 	dir = 1;
 
@@ -439,6 +445,7 @@ static int ttm_buffer_object_transfer(struct ttm_buffer_object *bo,
 	kref_init(&fbo->list_kref);
 	kref_init(&fbo->kref);
 	fbo->destroy = &ttm_transfered_destroy;
+	fbo->acc_size = 0;
 
 	*new_obj = fbo;
 	return 0;
@@ -502,10 +509,16 @@ static int ttm_bo_kmap_ttm(struct ttm_buffer_object *bo,
 {
 	struct ttm_mem_reg *mem = &bo->mem; pgprot_t prot;
 	struct ttm_tt *ttm = bo->ttm;
-	struct page *d;
-	int i;
+	int ret;
 
 	BUG_ON(!ttm);
+
+	if (ttm->state == tt_unpopulated) {
+		ret = ttm->bdev->driver->ttm_tt_populate(ttm);
+		if (ret)
+			return ret;
+	}
+
 	if (num_pages == 1 && (mem->placement & TTM_PL_FLAG_CACHED)) {
 		/*
 		 * We're mapping a single page, and the desired
@@ -513,18 +526,9 @@ static int ttm_bo_kmap_ttm(struct ttm_buffer_object *bo,
 		 */
 
 		map->bo_kmap_type = ttm_bo_map_kmap;
-		map->page = ttm_tt_get_page(ttm, start_page);
+		map->page = ttm->pages[start_page];
 		map->virtual = kmap(map->page);
 	} else {
-	    /*
-	     * Populate the part we're mapping;
-	     */
-		for (i = start_page; i < start_page + num_pages; ++i) {
-			d = ttm_tt_get_page(ttm, i);
-			if (!d)
-				return -ENOMEM;
-		}
-
 		/*
 		 * We need to use vmap to get the desired page protection
 		 * or to make the buffer object look contiguous.
diff --git a/drivers/gpu/drm/ttm/ttm_bo_vm.c b/drivers/gpu/drm/ttm/ttm_bo_vm.c
index 221b924acebe..54412848de88 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_vm.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_vm.c
@@ -174,18 +174,23 @@ static int ttm_bo_vm_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 		vma->vm_page_prot = (bo->mem.placement & TTM_PL_FLAG_CACHED) ?
 		    vm_get_page_prot(vma->vm_flags) :
 		    ttm_io_prot(bo->mem.placement, vma->vm_page_prot);
+
+		/* Allocate all page at once, most common usage */
+		if (ttm->bdev->driver->ttm_tt_populate(ttm)) {
+			retval = VM_FAULT_OOM;
+			goto out_io_unlock;
+		}
 	}
 
 	/*
 	 * Speculatively prefault a number of pages. Only error on
 	 * first page.
 	 */
-
 	for (i = 0; i < TTM_BO_VM_NUM_PREFAULT; ++i) {
 		if (bo->mem.bus.is_iomem)
 			pfn = ((bo->mem.bus.base + bo->mem.bus.offset) >> PAGE_SHIFT) + page_offset;
 		else {
-			page = ttm_tt_get_page(ttm, page_offset);
+			page = ttm->pages[page_offset];
 			if (unlikely(!page && i == 0)) {
 				retval = VM_FAULT_OOM;
 				goto out_io_unlock;
diff --git a/drivers/gpu/drm/ttm/ttm_memory.c b/drivers/gpu/drm/ttm/ttm_memory.c
index e70ddd82dc02..9eba8e9a4e9c 100644
--- a/drivers/gpu/drm/ttm/ttm_memory.c
+++ b/drivers/gpu/drm/ttm/ttm_memory.c
@@ -395,6 +395,7 @@ int ttm_mem_global_init(struct ttm_mem_global *glob)
 		       zone->name, (unsigned long long) zone->max_mem >> 10);
 	}
 	ttm_page_alloc_init(glob, glob->zone_kernel->max_mem/(2*PAGE_SIZE));
+	ttm_dma_page_alloc_init(glob, glob->zone_kernel->max_mem/(2*PAGE_SIZE));
 	return 0;
 out_no_zone:
 	ttm_mem_global_release(glob);
@@ -409,6 +410,7 @@ void ttm_mem_global_release(struct ttm_mem_global *glob)
 
 	/* let the page allocator first stop the shrink work. */
 	ttm_page_alloc_fini();
+	ttm_dma_page_alloc_fini();
 
 	flush_workqueue(glob->swap_queue);
 	destroy_workqueue(glob->swap_queue);
diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc.c b/drivers/gpu/drm/ttm/ttm_page_alloc.c
index 727e93daac3b..499debda791e 100644
--- a/drivers/gpu/drm/ttm/ttm_page_alloc.c
+++ b/drivers/gpu/drm/ttm/ttm_page_alloc.c
@@ -619,8 +619,10 @@ static void ttm_page_pool_fill_locked(struct ttm_page_pool *pool,
  * @return count of pages still required to fulfill the request.
  */
 static unsigned ttm_page_pool_get_pages(struct ttm_page_pool *pool,
-		struct list_head *pages, int ttm_flags,
-		enum ttm_caching_state cstate, unsigned count)
+					struct list_head *pages,
+					int ttm_flags,
+					enum ttm_caching_state cstate,
+					unsigned count)
 {
 	unsigned long irq_flags;
 	struct list_head *p;
@@ -660,17 +662,67 @@ out:
 	return count;
 }
 
+/* Put all pages in pages list to correct pool to wait for reuse */
+static void ttm_put_pages(struct page **pages, unsigned npages, int flags,
+			  enum ttm_caching_state cstate)
+{
+	unsigned long irq_flags;
+	struct ttm_page_pool *pool = ttm_get_pool(flags, cstate);
+	unsigned i;
+
+	if (pool == NULL) {
+		/* No pool for this memory type so free the pages */
+		for (i = 0; i < npages; i++) {
+			if (pages[i]) {
+				if (page_count(pages[i]) != 1)
+					printk(KERN_ERR TTM_PFX
+					       "Erroneous page count. "
+					       "Leaking pages.\n");
+				__free_page(pages[i]);
+				pages[i] = NULL;
+			}
+		}
+		return;
+	}
+
+	spin_lock_irqsave(&pool->lock, irq_flags);
+	for (i = 0; i < npages; i++) {
+		if (pages[i]) {
+			if (page_count(pages[i]) != 1)
+				printk(KERN_ERR TTM_PFX
+				       "Erroneous page count. "
+				       "Leaking pages.\n");
+			list_add_tail(&pages[i]->lru, &pool->list);
+			pages[i] = NULL;
+			pool->npages++;
+		}
+	}
+	/* Check that we don't go over the pool limit */
+	npages = 0;
+	if (pool->npages > _manager->options.max_size) {
+		npages = pool->npages - _manager->options.max_size;
+		/* free at least NUM_PAGES_TO_ALLOC number of pages
+		 * to reduce calls to set_memory_wb */
+		if (npages < NUM_PAGES_TO_ALLOC)
+			npages = NUM_PAGES_TO_ALLOC;
+	}
+	spin_unlock_irqrestore(&pool->lock, irq_flags);
+	if (npages)
+		ttm_page_pool_free(pool, npages);
+}
+
 /*
  * On success pages list will hold count number of correctly
  * cached pages.
  */
-int ttm_get_pages(struct list_head *pages, int flags,
-		  enum ttm_caching_state cstate, unsigned count,
-		  dma_addr_t *dma_address)
+static int ttm_get_pages(struct page **pages, unsigned npages, int flags,
+			 enum ttm_caching_state cstate)
 {
 	struct ttm_page_pool *pool = ttm_get_pool(flags, cstate);
+	struct list_head plist;
 	struct page *p = NULL;
 	gfp_t gfp_flags = GFP_USER;
+	unsigned count;
 	int r;
 
 	/* set zero flag for page allocation if required */
@@ -684,7 +736,7 @@ int ttm_get_pages(struct list_head *pages, int flags,
 		else
 			gfp_flags |= GFP_HIGHUSER;
 
-		for (r = 0; r < count; ++r) {
+		for (r = 0; r < npages; ++r) {
 			p = alloc_page(gfp_flags);
 			if (!p) {
 
@@ -693,87 +745,53 @@ int ttm_get_pages(struct list_head *pages, int flags,
 				return -ENOMEM;
 			}
 
-			list_add(&p->lru, pages);
+			pages[r] = p;
 		}
 		return 0;
 	}
 
-
 	/* combine zero flag to pool flags */
 	gfp_flags |= pool->gfp_flags;
 
 	/* First we take pages from the pool */
-	count = ttm_page_pool_get_pages(pool, pages, flags, cstate, count);
+	INIT_LIST_HEAD(&plist);
+	npages = ttm_page_pool_get_pages(pool, &plist, flags, cstate, npages);
+	count = 0;
+	list_for_each_entry(p, &plist, lru) {
+		pages[count++] = p;
+	}
 
 	/* clear the pages coming from the pool if requested */
 	if (flags & TTM_PAGE_FLAG_ZERO_ALLOC) {
-		list_for_each_entry(p, pages, lru) {
+		list_for_each_entry(p, &plist, lru) {
 			clear_page(page_address(p));
 		}
 	}
 
 	/* If pool didn't have enough pages allocate new one. */
-	if (count > 0) {
+	if (npages > 0) {
 		/* ttm_alloc_new_pages doesn't reference pool so we can run
 		 * multiple requests in parallel.
 		 **/
-		r = ttm_alloc_new_pages(pages, gfp_flags, flags, cstate, count);
+		INIT_LIST_HEAD(&plist);
+		r = ttm_alloc_new_pages(&plist, gfp_flags, flags, cstate, npages);
+		list_for_each_entry(p, &plist, lru) {
+			pages[count++] = p;
+		}
 		if (r) {
 			/* If there is any pages in the list put them back to
 			 * the pool. */
 			printk(KERN_ERR TTM_PFX
 			       "Failed to allocate extra pages "
 			       "for large request.");
-			ttm_put_pages(pages, 0, flags, cstate, NULL);
+			ttm_put_pages(pages, count, flags, cstate);
 			return r;
 		}
 	}
 
-
 	return 0;
 }
 
-/* Put all pages in pages list to correct pool to wait for reuse */
-void ttm_put_pages(struct list_head *pages, unsigned page_count, int flags,
-		   enum ttm_caching_state cstate, dma_addr_t *dma_address)
-{
-	unsigned long irq_flags;
-	struct ttm_page_pool *pool = ttm_get_pool(flags, cstate);
-	struct page *p, *tmp;
-
-	if (pool == NULL) {
-		/* No pool for this memory type so free the pages */
-
-		list_for_each_entry_safe(p, tmp, pages, lru) {
-			__free_page(p);
-		}
-		/* Make the pages list empty */
-		INIT_LIST_HEAD(pages);
-		return;
-	}
-	if (page_count == 0) {
-		list_for_each_entry_safe(p, tmp, pages, lru) {
-			++page_count;
-		}
-	}
-
-	spin_lock_irqsave(&pool->lock, irq_flags);
-	list_splice_init(pages, &pool->list);
-	pool->npages += page_count;
-	/* Check that we don't go over the pool limit */
-	page_count = 0;
-	if (pool->npages > _manager->options.max_size) {
-		page_count = pool->npages - _manager->options.max_size;
-		/* free at least NUM_PAGES_TO_ALLOC number of pages
-		 * to reduce calls to set_memory_wb */
-		if (page_count < NUM_PAGES_TO_ALLOC)
-			page_count = NUM_PAGES_TO_ALLOC;
-	}
-	spin_unlock_irqrestore(&pool->lock, irq_flags);
-	if (page_count)
-		ttm_page_pool_free(pool, page_count);
-}
-
 static void ttm_page_pool_init_locked(struct ttm_page_pool *pool, int flags,
 		char *name)
 {
@@ -836,6 +854,62 @@ void ttm_page_alloc_fini(void)
 	_manager = NULL;
 }
 
+int ttm_pool_populate(struct ttm_tt *ttm)
+{
+	struct ttm_mem_global *mem_glob = ttm->glob->mem_glob;
+	unsigned i;
+	int ret;
+
+	if (ttm->state != tt_unpopulated)
+		return 0;
+
+	for (i = 0; i < ttm->num_pages; ++i) {
+		ret = ttm_get_pages(&ttm->pages[i], 1,
+				    ttm->page_flags,
+				    ttm->caching_state);
+		if (ret != 0) {
+			ttm_pool_unpopulate(ttm);
+			return -ENOMEM;
+		}
+
+		ret = ttm_mem_global_alloc_page(mem_glob, ttm->pages[i],
+						false, false);
+		if (unlikely(ret != 0)) {
+			ttm_pool_unpopulate(ttm);
+			return -ENOMEM;
+		}
+	}
+
+	if (unlikely(ttm->page_flags & TTM_PAGE_FLAG_SWAPPED)) {
+		ret = ttm_tt_swapin(ttm);
+		if (unlikely(ret != 0)) {
+			ttm_pool_unpopulate(ttm);
+			return ret;
+		}
+	}
+
+	ttm->state = tt_unbound;
+	return 0;
+}
+EXPORT_SYMBOL(ttm_pool_populate);
+
+void ttm_pool_unpopulate(struct ttm_tt *ttm)
+{
+	unsigned i;
+
+	for (i = 0; i < ttm->num_pages; ++i) {
+		if (ttm->pages[i]) {
+			ttm_mem_global_free_page(ttm->glob->mem_glob,
+						 ttm->pages[i]);
+			ttm_put_pages(&ttm->pages[i], 1,
+				      ttm->page_flags,
+				      ttm->caching_state);
+		}
+	}
+	ttm->state = tt_unpopulated;
+}
+EXPORT_SYMBOL(ttm_pool_unpopulate);
+
 int ttm_page_alloc_debugfs(struct seq_file *m, void *data)
 {
 	struct ttm_page_pool *p;
diff --git a/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c b/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
new file mode 100644
index 000000000000..37ead6995c87
--- /dev/null
+++ b/drivers/gpu/drm/ttm/ttm_page_alloc_dma.c
@@ -0,0 +1,1143 @@
+/*
+ * Copyright 2011 (c) Oracle Corp.
+
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sub license,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ *
+ * Author: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
+ */
+
+/*
+ * A simple DMA pool losely based on dmapool.c. It has certain advantages
+ * over the DMA pools:
+ * - Pool collects resently freed pages for reuse (and hooks up to
+ *   the shrinker).
+ * - Tracks currently in use pages
+ * - Tracks whether the page is UC, WB or cached (and reverts to WB
+ *   when freed).
+ */
+
+#include <linux/dma-mapping.h>
+#include <linux/list.h>
+#include <linux/seq_file.h> /* for seq_printf */
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <linux/highmem.h>
+#include <linux/mm_types.h>
+#include <linux/module.h>
+#include <linux/mm.h>
+#include <linux/atomic.h>
+#include <linux/device.h>
+#include <linux/kthread.h>
+#include "ttm/ttm_bo_driver.h"
+#include "ttm/ttm_page_alloc.h"
+#ifdef TTM_HAS_AGP
+#include <asm/agp.h>
+#endif
+
+#define NUM_PAGES_TO_ALLOC		(PAGE_SIZE/sizeof(struct page *))
+#define SMALL_ALLOCATION		4
+#define FREE_ALL_PAGES			(~0U)
+/* times are in msecs */
+#define IS_UNDEFINED			(0)
+#define IS_WC				(1<<1)
+#define IS_UC				(1<<2)
+#define IS_CACHED			(1<<3)
+#define IS_DMA32			(1<<4)
+
+enum pool_type {
+	POOL_IS_UNDEFINED,
+	POOL_IS_WC = IS_WC,
+	POOL_IS_UC = IS_UC,
+	POOL_IS_CACHED = IS_CACHED,
+	POOL_IS_WC_DMA32 = IS_WC | IS_DMA32,
+	POOL_IS_UC_DMA32 = IS_UC | IS_DMA32,
+	POOL_IS_CACHED_DMA32 = IS_CACHED | IS_DMA32,
+};
+/*
+ * The pool structure. There are usually six pools:
+ *  - generic (not restricted to DMA32):
+ *      - write combined, uncached, cached.
+ *  - dma32 (up to 2^32 - so up 4GB):
+ *      - write combined, uncached, cached.
+ * for each 'struct device'. The 'cached' is for pages that are actively used.
+ * The other ones can be shrunk by the shrinker API if neccessary.
+ * @pools: The 'struct device->dma_pools' link.
+ * @type: Type of the pool
+ * @lock: Protects the inuse_list and free_list from concurrnet access. Must be
+ * used with irqsave/irqrestore variants because pool allocator maybe called
+ * from delayed work.
+ * @inuse_list: Pool of pages that are in use. The order is very important and
+ *   it is in the order that the TTM pages that are put back are in.
+ * @free_list: Pool of pages that are free to be used. No order requirements.
+ * @dev: The device that is associated with these pools.
+ * @size: Size used during DMA allocation.
+ * @npages_free: Count of available pages for re-use.
+ * @npages_in_use: Count of pages that are in use.
+ * @nfrees: Stats when pool is shrinking.
+ * @nrefills: Stats when the pool is grown.
+ * @gfp_flags: Flags to pass for alloc_page.
+ * @name: Name of the pool.
+ * @dev_name: Name derieved from dev - similar to how dev_info works.
+ *   Used during shutdown as the dev_info during release is unavailable.
+ */
+struct dma_pool {
+	struct list_head pools; /* The 'struct device->dma_pools link */
+	enum pool_type type;
+	spinlock_t lock;
+	struct list_head inuse_list;
+	struct list_head free_list;
+	struct device *dev;
+	unsigned size;
+	unsigned npages_free;
+	unsigned npages_in_use;
+	unsigned long nfrees; /* Stats when shrunk. */
+	unsigned long nrefills; /* Stats when grown. */
+	gfp_t gfp_flags;
+	char name[13]; /* "cached dma32" */
+	char dev_name[64]; /* Constructed from dev */
+};
+
+/*
+ * The accounting page keeping track of the allocated page along with
+ * the DMA address.
+ * @page_list: The link to the 'page_list' in 'struct dma_pool'.
+ * @vaddr: The virtual address of the page
+ * @dma: The bus address of the page. If the page is not allocated
+ *   via the DMA API, it will be -1.
+ */
+struct dma_page {
+	struct list_head page_list;
+	void *vaddr;
+	struct page *p;
+	dma_addr_t dma;
+};
+
+/*
+ * Limits for the pool. They are handled without locks because only place where
+ * they may change is in sysfs store. They won't have immediate effect anyway
+ * so forcing serialization to access them is pointless.
+ */
+
+struct ttm_pool_opts {
+	unsigned	alloc_size;
+	unsigned	max_size;
+	unsigned	small;
+};
+
+/*
+ * Contains the list of all of the 'struct device' and their corresponding
+ * DMA pools. Guarded by _mutex->lock.
+ * @pools: The link to 'struct ttm_pool_manager->pools'
+ * @dev: The 'struct device' associated with the 'pool'
+ * @pool: The 'struct dma_pool' associated with the 'dev'
+ */
+struct device_pools {
+	struct list_head pools;
+	struct device *dev;
+	struct dma_pool *pool;
+};
+
+/*
+ * struct ttm_pool_manager - Holds memory pools for fast allocation
+ *
+ * @lock: Lock used when adding/removing from pools
+ * @pools: List of 'struct device' and 'struct dma_pool' tuples.
+ * @options: Limits for the pool.
+ * @npools: Total amount of pools in existence.
+ * @shrinker: The structure used by [un|]register_shrinker
+ */
+struct ttm_pool_manager {
+	struct mutex		lock;
+	struct list_head	pools;
+	struct ttm_pool_opts	options;
+	unsigned		npools;
+	struct shrinker		mm_shrink;
+	struct kobject		kobj;
+};
+
+static struct ttm_pool_manager *_manager;
+
+static struct attribute ttm_page_pool_max = {
+	.name = "pool_max_size",
+	.mode = S_IRUGO | S_IWUSR
+};
+static struct attribute ttm_page_pool_small = {
+	.name = "pool_small_allocation",
+	.mode = S_IRUGO | S_IWUSR
+};
+static struct attribute ttm_page_pool_alloc_size = {
+	.name = "pool_allocation_size",
+	.mode = S_IRUGO | S_IWUSR
+};
+
+static struct attribute *ttm_pool_attrs[] = {
+	&ttm_page_pool_max,
+	&ttm_page_pool_small,
+	&ttm_page_pool_alloc_size,
+	NULL
+};
+
+static void ttm_pool_kobj_release(struct kobject *kobj)
+{
+	struct ttm_pool_manager *m =
+		container_of(kobj, struct ttm_pool_manager, kobj);
+	kfree(m);
+}
+
+static ssize_t ttm_pool_store(struct kobject *kobj, struct attribute *attr,
+			      const char *buffer, size_t size)
+{
+	struct ttm_pool_manager *m =
+		container_of(kobj, struct ttm_pool_manager, kobj);
+	int chars;
+	unsigned val;
+	chars = sscanf(buffer, "%u", &val);
+	if (chars == 0)
+		return size;
+
+	/* Convert kb to number of pages */
+	val = val / (PAGE_SIZE >> 10);
+
+	if (attr == &ttm_page_pool_max)
+		m->options.max_size = val;
+	else if (attr == &ttm_page_pool_small)
+		m->options.small = val;
+	else if (attr == &ttm_page_pool_alloc_size) {
+		if (val > NUM_PAGES_TO_ALLOC*8) {
+			printk(KERN_ERR TTM_PFX
+			       "Setting allocation size to %lu "
+			       "is not allowed. Recommended size is "
+			       "%lu\n",
+			       NUM_PAGES_TO_ALLOC*(PAGE_SIZE >> 7),
+			       NUM_PAGES_TO_ALLOC*(PAGE_SIZE >> 10));
+			return size;
+		} else if (val > NUM_PAGES_TO_ALLOC) {
+			printk(KERN_WARNING TTM_PFX
+			       "Setting allocation size to "
+			       "larger than %lu is not recommended.\n",
+			       NUM_PAGES_TO_ALLOC*(PAGE_SIZE >> 10));
+		}
+		m->options.alloc_size = val;
+	}
+
+	return size;
+}
+
+static ssize_t ttm_pool_show(struct kobject *kobj, struct attribute *attr,
+			     char *buffer)
+{
+	struct ttm_pool_manager *m =
+		container_of(kobj, struct ttm_pool_manager, kobj);
+	unsigned val = 0;
+
+	if (attr == &ttm_page_pool_max)
+		val = m->options.max_size;
+	else if (attr == &ttm_page_pool_small)
+		val = m->options.small;
+	else if (attr == &ttm_page_pool_alloc_size)
+		val = m->options.alloc_size;
+
+	val = val * (PAGE_SIZE >> 10);
+
+	return snprintf(buffer, PAGE_SIZE, "%u\n", val);
+}
+
+static const struct sysfs_ops ttm_pool_sysfs_ops = {
+	.show = &ttm_pool_show,
+	.store = &ttm_pool_store,
+};
+
+static struct kobj_type ttm_pool_kobj_type = {
+	.release = &ttm_pool_kobj_release,
+	.sysfs_ops = &ttm_pool_sysfs_ops,
+	.default_attrs = ttm_pool_attrs,
+};
+
+#ifndef CONFIG_X86
+static int set_pages_array_wb(struct page **pages, int addrinarray)
+{
+#ifdef TTM_HAS_AGP
+	int i;
+
+	for (i = 0; i < addrinarray; i++)
+		unmap_page_from_agp(pages[i]);
+#endif
+	return 0;
+}
+
+static int set_pages_array_wc(struct page **pages, int addrinarray)
+{
+#ifdef TTM_HAS_AGP
+	int i;
+
+	for (i = 0; i < addrinarray; i++)
+		map_page_into_agp(pages[i]);
+#endif
+	return 0;
+}
+
+static int set_pages_array_uc(struct page **pages, int addrinarray)
+{
+#ifdef TTM_HAS_AGP
+	int i;
+
+	for (i = 0; i < addrinarray; i++)
+		map_page_into_agp(pages[i]);
+#endif
+	return 0;
+}
+#endif /* for !CONFIG_X86 */
+
+static int ttm_set_pages_caching(struct dma_pool *pool,
+				 struct page **pages, unsigned cpages)
+{
+	int r = 0;
+	/* Set page caching */
+	if (pool->type & IS_UC) {
+		r = set_pages_array_uc(pages, cpages);
+		if (r)
+			pr_err(TTM_PFX
+			       "%s: Failed to set %d pages to uc!\n",
+			       pool->dev_name, cpages);
+	}
+	if (pool->type & IS_WC) {
+		r = set_pages_array_wc(pages, cpages);
+		if (r)
+			pr_err(TTM_PFX
+			       "%s: Failed to set %d pages to wc!\n",
+			       pool->dev_name, cpages);
+	}
+	return r;
+}
+
+static void __ttm_dma_free_page(struct dma_pool *pool, struct dma_page *d_page)
+{
+	dma_addr_t dma = d_page->dma;
+	dma_free_coherent(pool->dev, pool->size, d_page->vaddr, dma);
+
+	kfree(d_page);
+	d_page = NULL;
+}
+static struct dma_page *__ttm_dma_alloc_page(struct dma_pool *pool)
+{
+	struct dma_page *d_page;
+
+	d_page = kmalloc(sizeof(struct dma_page), GFP_KERNEL);
+	if (!d_page)
+		return NULL;
+
+	d_page->vaddr = dma_alloc_coherent(pool->dev, pool->size,
+					   &d_page->dma,
+					   pool->gfp_flags);
+	if (d_page->vaddr)
+		d_page->p = virt_to_page(d_page->vaddr);
+	else {
+		kfree(d_page);
+		d_page = NULL;
+	}
+	return d_page;
+}
+static enum pool_type ttm_to_type(int flags, enum ttm_caching_state cstate)
+{
+	enum pool_type type = IS_UNDEFINED;
+
+	if (flags & TTM_PAGE_FLAG_DMA32)
+		type |= IS_DMA32;
+	if (cstate == tt_cached)
+		type |= IS_CACHED;
+	else if (cstate == tt_uncached)
+		type |= IS_UC;
+	else
+		type |= IS_WC;
+
+	return type;
+}
+
+static void ttm_pool_update_free_locked(struct dma_pool *pool,
+					unsigned freed_pages)
+{
+	pool->npages_free -= freed_pages;
+	pool->nfrees += freed_pages;
+
+}
+
+/* set memory back to wb and free the pages. */
+static void ttm_dma_pages_put(struct dma_pool *pool, struct list_head *d_pages,
+			      struct page *pages[], unsigned npages)
+{
+	struct dma_page *d_page, *tmp;
+
+	/* Don't set WB on WB page pool. */
+	if (npages && !(pool->type & IS_CACHED) &&
+	    set_pages_array_wb(pages, npages))
+		pr_err(TTM_PFX "%s: Failed to set %d pages to wb!\n",
+			pool->dev_name, npages);
+
+	list_for_each_entry_safe(d_page, tmp, d_pages, page_list) {
+		list_del(&d_page->page_list);
+		__ttm_dma_free_page(pool, d_page);
+	}
+}
+
+static void ttm_dma_page_put(struct dma_pool *pool, struct dma_page *d_page)
+{
+	/* Don't set WB on WB page pool. */
+	if (!(pool->type & IS_CACHED) && set_pages_array_wb(&d_page->p, 1))
+		pr_err(TTM_PFX "%s: Failed to set %d pages to wb!\n",
+			pool->dev_name, 1);
+
+	list_del(&d_page->page_list);
+	__ttm_dma_free_page(pool, d_page);
+}
+
+/*
+ * Free pages from pool.
+ *
+ * To prevent hogging the ttm_swap process we only free NUM_PAGES_TO_ALLOC
+ * number of pages in one go.
+ *
+ * @pool: to free the pages from
+ * @nr_free: If set to true will free all pages in pool
+ **/
+static unsigned ttm_dma_page_pool_free(struct dma_pool *pool, unsigned nr_free)
+{
+	unsigned long irq_flags;
+	struct dma_page *dma_p, *tmp;
+	struct page **pages_to_free;
+	struct list_head d_pages;
+	unsigned freed_pages = 0,
+		 npages_to_free = nr_free;
+
+	if (NUM_PAGES_TO_ALLOC < nr_free)
+		npages_to_free = NUM_PAGES_TO_ALLOC;
+#if 0
+	if (nr_free > 1) {
+		pr_debug("%s: (%s:%d) Attempting to free %d (%d) pages\n",
+			pool->dev_name, pool->name, current->pid,
+			npages_to_free, nr_free);
+	}
+#endif
+	pages_to_free = kmalloc(npages_to_free * sizeof(struct page *),
+			GFP_KERNEL);
+
+	if (!pages_to_free) {
+		pr_err(TTM_PFX
+		       "%s: Failed to allocate memory for pool free operation.\n",
+			pool->dev_name);
+		return 0;
+	}
+	INIT_LIST_HEAD(&d_pages);
+restart:
+	spin_lock_irqsave(&pool->lock, irq_flags);
+
+	/* We picking the oldest ones off the list */
+	list_for_each_entry_safe_reverse(dma_p, tmp, &pool->free_list,
+					 page_list) {
+		if (freed_pages >= npages_to_free)
+			break;
+
+		/* Move the dma_page from one list to another. */
+		list_move(&dma_p->page_list, &d_pages);
+
+		pages_to_free[freed_pages++] = dma_p->p;
+		/* We can only remove NUM_PAGES_TO_ALLOC at a time. */
+		if (freed_pages >= NUM_PAGES_TO_ALLOC) {
+
+			ttm_pool_update_free_locked(pool, freed_pages);
+			/**
+			 * Because changing page caching is costly
+			 * we unlock the pool to prevent stalling.
+			 */
+			spin_unlock_irqrestore(&pool->lock, irq_flags);
+
+			ttm_dma_pages_put(pool, &d_pages, pages_to_free,
+					  freed_pages);
+
+			INIT_LIST_HEAD(&d_pages);
+
+			if (likely(nr_free != FREE_ALL_PAGES))
+				nr_free -= freed_pages;
+
+			if (NUM_PAGES_TO_ALLOC >= nr_free)
+				npages_to_free = nr_free;
+			else
+				npages_to_free = NUM_PAGES_TO_ALLOC;
+
+			freed_pages = 0;
+
+			/* free all so restart the processing */
+			if (nr_free)
+				goto restart;
+
+			/* Not allowed to fall through or break because
+			 * following context is inside spinlock while we are
+			 * outside here.
+			 */
+			goto out;
+
+		}
+	}
+
+	/* remove range of pages from the pool */
+	if (freed_pages) {
+		ttm_pool_update_free_locked(pool, freed_pages);
+		nr_free -= freed_pages;
+	}
+
+	spin_unlock_irqrestore(&pool->lock, irq_flags);
+
+	if (freed_pages)
+		ttm_dma_pages_put(pool, &d_pages, pages_to_free, freed_pages);
+out:
+	kfree(pages_to_free);
+	return nr_free;
+}
+
+static void ttm_dma_free_pool(struct device *dev, enum pool_type type)
+{
+	struct device_pools *p;
+	struct dma_pool *pool;
+
+	if (!dev)
+		return;
+
+	mutex_lock(&_manager->lock);
+	list_for_each_entry_reverse(p, &_manager->pools, pools) {
+		if (p->dev != dev)
+			continue;
+		pool = p->pool;
+		if (pool->type != type)
+			continue;
+
+		list_del(&p->pools);
+		kfree(p);
+		_manager->npools--;
+		break;
+	}
+	list_for_each_entry_reverse(pool, &dev->dma_pools, pools) {
+		if (pool->type != type)
+			continue;
+		/* Takes a spinlock.. */
+		ttm_dma_page_pool_free(pool, FREE_ALL_PAGES);
+		WARN_ON(((pool->npages_in_use + pool->npages_free) != 0));
+		/* This code path is called after _all_ references to the
+		 * struct device has been dropped - so nobody should be
+		 * touching it. In case somebody is trying to _add_ we are
+		 * guarded by the mutex. */
+		list_del(&pool->pools);
+		kfree(pool);
+		break;
+	}
+	mutex_unlock(&_manager->lock);
+}
+
+/*
+ * On free-ing of the 'struct device' this deconstructor is run.
+ * Albeit the pool might have already been freed earlier.
+ */
+static void ttm_dma_pool_release(struct device *dev, void *res)
+{
+	struct dma_pool *pool = *(struct dma_pool **)res;
+
+	if (pool)
+		ttm_dma_free_pool(dev, pool->type);
+}
+
+static int ttm_dma_pool_match(struct device *dev, void *res, void *match_data)
+{
+	return *(struct dma_pool **)res == match_data;
+}
+
+static struct dma_pool *ttm_dma_pool_init(struct device *dev, gfp_t flags,
+					  enum pool_type type)
+{
+	char *n[] = {"wc", "uc", "cached", " dma32", "unknown",};
+	enum pool_type t[] = {IS_WC, IS_UC, IS_CACHED, IS_DMA32, IS_UNDEFINED};
+	struct device_pools *sec_pool = NULL;
+	struct dma_pool *pool = NULL, **ptr;
+	unsigned i;
+	int ret = -ENODEV;
+	char *p;
+
+	if (!dev)
+		return NULL;
+
+	ptr = devres_alloc(ttm_dma_pool_release, sizeof(*ptr), GFP_KERNEL);
+	if (!ptr)
+		return NULL;
+
+	ret = -ENOMEM;
+
+	pool = kmalloc_node(sizeof(struct dma_pool), GFP_KERNEL,
+			    dev_to_node(dev));
+	if (!pool)
+		goto err_mem;
+
+	sec_pool = kmalloc_node(sizeof(struct device_pools), GFP_KERNEL,
+				dev_to_node(dev));
+	if (!sec_pool)
+		goto err_mem;
+
+	INIT_LIST_HEAD(&sec_pool->pools);
+	sec_pool->dev = dev;
+	sec_pool->pool =  pool;
+
+	INIT_LIST_HEAD(&pool->free_list);
+	INIT_LIST_HEAD(&pool->inuse_list);
+	INIT_LIST_HEAD(&pool->pools);
+	spin_lock_init(&pool->lock);
+	pool->dev = dev;
+	pool->npages_free = pool->npages_in_use = 0;
+	pool->nfrees = 0;
+	pool->gfp_flags = flags;
+	pool->size = PAGE_SIZE;
+	pool->type = type;
+	pool->nrefills = 0;
+	p = pool->name;
+	for (i = 0; i < 5; i++) {
+		if (type & t[i]) {
+			p += snprintf(p, sizeof(pool->name) - (p - pool->name),
+				      "%s", n[i]);
+		}
+	}
+	*p = 0;
+	/* We copy the name for pr_ calls b/c when dma_pool_destroy is called
+	 * - the kobj->name has already been deallocated.*/
+	snprintf(pool->dev_name, sizeof(pool->dev_name), "%s %s",
+		 dev_driver_string(dev), dev_name(dev));
+	mutex_lock(&_manager->lock);
+	/* You can get the dma_pool from either the global: */
+	list_add(&sec_pool->pools, &_manager->pools);
+	_manager->npools++;
+	/* or from 'struct device': */
+	list_add(&pool->pools, &dev->dma_pools);
+	mutex_unlock(&_manager->lock);
+
+	*ptr = pool;
+	devres_add(dev, ptr);
+
+	return pool;
+err_mem:
+	devres_free(ptr);
+	kfree(sec_pool);
+	kfree(pool);
+	return ERR_PTR(ret);
+}
+
+static struct dma_pool *ttm_dma_find_pool(struct device *dev,
+					  enum pool_type type)
+{
+	struct dma_pool *pool, *tmp, *found = NULL;
+
+	if (type == IS_UNDEFINED)
+		return found;
+
+	/* NB: We iterate on the 'struct dev' which has no spinlock, but
+	 * it does have a kref which we have taken. The kref is taken during
+	 * graphic driver loading - in the drm_pci_init it calls either
+	 * pci_dev_get or pci_register_driver which both end up taking a kref
+	 * on 'struct device'.
+	 *
+	 * On teardown, the graphic drivers end up quiescing the TTM (put_pages)
+	 * and calls the dev_res deconstructors: ttm_dma_pool_release. The nice
+	 * thing is at that point of time there are no pages associated with the
+	 * driver so this function will not be called.
+	 */
+	list_for_each_entry_safe(pool, tmp, &dev->dma_pools, pools) {
+		if (pool->type != type)
+			continue;
+		found = pool;
+		break;
+	}
+	return found;
+}
+
+/*
+ * Free pages the pages that failed to change the caching state. If there
+ * are pages that have changed their caching state already put them to the
+ * pool.
+ */
+static void ttm_dma_handle_caching_state_failure(struct dma_pool *pool,
+						 struct list_head *d_pages,
+						 struct page **failed_pages,
+						 unsigned cpages)
+{
+	struct dma_page *d_page, *tmp;
+	struct page *p;
+	unsigned i = 0;
+
+	p = failed_pages[0];
+	if (!p)
+		return;
+	/* Find the failed page. */
+	list_for_each_entry_safe(d_page, tmp, d_pages, page_list) {
+		if (d_page->p != p)
+			continue;
+		/* .. and then progress over the full list. */
+		list_del(&d_page->page_list);
+		__ttm_dma_free_page(pool, d_page);
+		if (++i < cpages)
+			p = failed_pages[i];
+		else
+			break;
+	}
+
+}
+
+/*
+ * Allocate 'count' pages, and put 'need' number of them on the
+ * 'pages' and as well on the 'dma_address' starting at 'dma_offset' offset.
+ * The full list of pages should also be on 'd_pages'.
+ * We return zero for success, and negative numbers as errors.
+ */
+static int ttm_dma_pool_alloc_new_pages(struct dma_pool *pool,
+					struct list_head *d_pages,
+					unsigned count)
+{
+	struct page **caching_array;
+	struct dma_page *dma_p;
+	struct page *p;
+	int r = 0;
+	unsigned i, cpages;
+	unsigned max_cpages = min(count,
+			(unsigned)(PAGE_SIZE/sizeof(struct page *)));
+
+	/* allocate array for page caching change */
+	caching_array = kmalloc(max_cpages*sizeof(struct page *), GFP_KERNEL);
+
+	if (!caching_array) {
+		pr_err(TTM_PFX
+		       "%s: Unable to allocate table for new pages.",
+			pool->dev_name);
+		return -ENOMEM;
+	}
+
+	if (count > 1) {
+		pr_debug("%s: (%s:%d) Getting %d pages\n",
+			pool->dev_name, pool->name, current->pid,
+			count);
+	}
+
+	for (i = 0, cpages = 0; i < count; ++i) {
+		dma_p = __ttm_dma_alloc_page(pool);
+		if (!dma_p) {
+			pr_err(TTM_PFX "%s: Unable to get page %u.\n",
+				pool->dev_name, i);
+
+			/* store already allocated pages in the pool after
+			 * setting the caching state */
+			if (cpages) {
+				r = ttm_set_pages_caching(pool, caching_array,
+							  cpages);
+				if (r)
+					ttm_dma_handle_caching_state_failure(
+						pool, d_pages, caching_array,
+						cpages);
+			}
+			r = -ENOMEM;
+			goto out;
+		}
+		p = dma_p->p;
+#ifdef CONFIG_HIGHMEM
+		/* gfp flags of highmem page should never be dma32 so we
+		 * we should be fine in such case
+		 */
+		if (!PageHighMem(p))
+#endif
+		{
+			caching_array[cpages++] = p;
+			if (cpages == max_cpages) {
+				/* Note: Cannot hold the spinlock */
+				r = ttm_set_pages_caching(pool, caching_array,
+						 cpages);
+				if (r) {
+					ttm_dma_handle_caching_state_failure(
+						pool, d_pages, caching_array,
+						cpages);
+					goto out;
+				}
+				cpages = 0;
+			}
+		}
+		list_add(&dma_p->page_list, d_pages);
+	}
+
+	if (cpages) {
+		r = ttm_set_pages_caching(pool, caching_array, cpages);
+		if (r)
+			ttm_dma_handle_caching_state_failure(pool, d_pages,
+					caching_array, cpages);
+	}
+out:
+	kfree(caching_array);
+	return r;
+}
+
+/*
+ * @return count of pages still required to fulfill the request.
+ */
+static int ttm_dma_page_pool_fill_locked(struct dma_pool *pool,
+					 unsigned long *irq_flags)
+{
+	unsigned count = _manager->options.small;
+	int r = pool->npages_free;
+
+	if (count > pool->npages_free) {
+		struct list_head d_pages;
+
+		INIT_LIST_HEAD(&d_pages);
+
+		spin_unlock_irqrestore(&pool->lock, *irq_flags);
+
+		/* Returns how many more are neccessary to fulfill the
+		 * request. */
+		r = ttm_dma_pool_alloc_new_pages(pool, &d_pages, count);
+
+		spin_lock_irqsave(&pool->lock, *irq_flags);
+		if (!r) {
+			/* Add the fresh to the end.. */
+			list_splice(&d_pages, &pool->free_list);
+			++pool->nrefills;
+			pool->npages_free += count;
+			r = count;
+		} else {
+			struct dma_page *d_page;
+			unsigned cpages = 0;
+
+			pr_err(TTM_PFX "%s: Failed to fill %s pool (r:%d)!\n",
+				pool->dev_name, pool->name, r);
+
+			list_for_each_entry(d_page, &d_pages, page_list) {
+				cpages++;
+			}
+			list_splice_tail(&d_pages, &pool->free_list);
+			pool->npages_free += cpages;
+			r = cpages;
+		}
+	}
+	return r;
+}
+
+/*
+ * @return count of pages still required to fulfill the request.
+ * The populate list is actually a stack (not that is matters as TTM
+ * allocates one page at a time.
+ */
+static int ttm_dma_pool_get_pages(struct dma_pool *pool,
+				  struct ttm_dma_tt *ttm_dma,
+				  unsigned index)
+{
+	struct dma_page *d_page;
+	struct ttm_tt *ttm = &ttm_dma->ttm;
+	unsigned long irq_flags;
+	int count, r = -ENOMEM;
+
+	spin_lock_irqsave(&pool->lock, irq_flags);
+	count = ttm_dma_page_pool_fill_locked(pool, &irq_flags);
+	if (count) {
+		d_page = list_first_entry(&pool->free_list, struct dma_page, page_list);
+		ttm->pages[index] = d_page->p;
+		ttm_dma->dma_address[index] = d_page->dma;
+		list_move_tail(&d_page->page_list, &ttm_dma->pages_list);
+		r = 0;
+		pool->npages_in_use += 1;
+		pool->npages_free -= 1;
+	}
+	spin_unlock_irqrestore(&pool->lock, irq_flags);
+	return r;
+}
+
+/*
+ * On success pages list will hold count number of correctly
+ * cached pages. On failure will hold the negative return value (-ENOMEM, etc).
+ */
+int ttm_dma_populate(struct ttm_dma_tt *ttm_dma, struct device *dev)
+{
+	struct ttm_tt *ttm = &ttm_dma->ttm;
+	struct ttm_mem_global *mem_glob = ttm->glob->mem_glob;
+	struct dma_pool *pool;
+	enum pool_type type;
+	unsigned i;
+	gfp_t gfp_flags;
+	int ret;
+
+	if (ttm->state != tt_unpopulated)
+		return 0;
+
+	type = ttm_to_type(ttm->page_flags, ttm->caching_state);
+	if (ttm->page_flags & TTM_PAGE_FLAG_DMA32)
+		gfp_flags = GFP_USER | GFP_DMA32;
+	else
+		gfp_flags = GFP_HIGHUSER;
+	if (ttm->page_flags & TTM_PAGE_FLAG_ZERO_ALLOC)
+		gfp_flags |= __GFP_ZERO;
+
+	pool = ttm_dma_find_pool(dev, type);
+	if (!pool) {
+		pool = ttm_dma_pool_init(dev, gfp_flags, type);
+		if (IS_ERR_OR_NULL(pool)) {
+			return -ENOMEM;
+		}
+	}
+
+	INIT_LIST_HEAD(&ttm_dma->pages_list);
+	for (i = 0; i < ttm->num_pages; ++i) {
+		ret = ttm_dma_pool_get_pages(pool, ttm_dma, i);
+		if (ret != 0) {
+			ttm_dma_unpopulate(ttm_dma, dev);
+			return -ENOMEM;
+		}
+
+		ret = ttm_mem_global_alloc_page(mem_glob, ttm->pages[i],
+						false, false);
+		if (unlikely(ret != 0)) {
+			ttm_dma_unpopulate(ttm_dma, dev);
+			return -ENOMEM;
+		}
+	}
+
+	if (unlikely(ttm->page_flags & TTM_PAGE_FLAG_SWAPPED)) {
+		ret = ttm_tt_swapin(ttm);
+		if (unlikely(ret != 0)) {
+			ttm_dma_unpopulate(ttm_dma, dev);
+			return ret;
+		}
+	}
+
+	ttm->state = tt_unbound;
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ttm_dma_populate);
+
+/* Get good estimation how many pages are free in pools */
+static int ttm_dma_pool_get_num_unused_pages(void)
+{
+	struct device_pools *p;
+	unsigned total = 0;
+
+	mutex_lock(&_manager->lock);
+	list_for_each_entry(p, &_manager->pools, pools)
+		total += p->pool->npages_free;
+	mutex_unlock(&_manager->lock);
+	return total;
+}
+
+/* Put all pages in pages list to correct pool to wait for reuse */
+void ttm_dma_unpopulate(struct ttm_dma_tt *ttm_dma, struct device *dev)
+{
+	struct ttm_tt *ttm = &ttm_dma->ttm;
+	struct dma_pool *pool;
+	struct dma_page *d_page, *next;
+	enum pool_type type;
+	bool is_cached = false;
+	unsigned count = 0, i, npages = 0;
+	unsigned long irq_flags;
+
+	type = ttm_to_type(ttm->page_flags, ttm->caching_state);
+	pool = ttm_dma_find_pool(dev, type);
+	if (!pool) {
+		WARN_ON(!pool);
+		return;
+	}
+	is_cached = (ttm_dma_find_pool(pool->dev,
+		     ttm_to_type(ttm->page_flags, tt_cached)) == pool);
+
+	/* make sure pages array match list and count number of pages */
+	list_for_each_entry(d_page, &ttm_dma->pages_list, page_list) {
+		ttm->pages[count] = d_page->p;
+		count++;
+	}
+
+	spin_lock_irqsave(&pool->lock, irq_flags);
+	pool->npages_in_use -= count;
+	if (is_cached) {
+		pool->nfrees += count;
+	} else {
+		pool->npages_free += count;
+		list_splice(&ttm_dma->pages_list, &pool->free_list);
+		npages = count;
+		if (pool->npages_free > _manager->options.max_size) {
+			npages = pool->npages_free - _manager->options.max_size;
+			/* free at least NUM_PAGES_TO_ALLOC number of pages
+			 * to reduce calls to set_memory_wb */
+			if (npages < NUM_PAGES_TO_ALLOC)
+				npages = NUM_PAGES_TO_ALLOC;
+		}
+	}
+	spin_unlock_irqrestore(&pool->lock, irq_flags);
+
+	if (is_cached) {
+		list_for_each_entry_safe(d_page, next, &ttm_dma->pages_list, page_list) {
+			ttm_mem_global_free_page(ttm->glob->mem_glob,
+						 d_page->p);
+			ttm_dma_page_put(pool, d_page);
+		}
+	} else {
+		for (i = 0; i < count; i++) {
+			ttm_mem_global_free_page(ttm->glob->mem_glob,
+						 ttm->pages[i]);
+		}
+	}
+
+	INIT_LIST_HEAD(&ttm_dma->pages_list);
+	for (i = 0; i < ttm->num_pages; i++) {
+		ttm->pages[i] = NULL;
+		ttm_dma->dma_address[i] = 0;
+	}
+
+	/* shrink pool if necessary (only on !is_cached pools)*/
+	if (npages)
+		ttm_dma_page_pool_free(pool, npages);
+	ttm->state = tt_unpopulated;
+}
+EXPORT_SYMBOL_GPL(ttm_dma_unpopulate);
+
+/**
+ * Callback for mm to request pool to reduce number of page held.
+ */
+static int ttm_dma_pool_mm_shrink(struct shrinker *shrink,
+				  struct shrink_control *sc)
+{
+	static atomic_t start_pool = ATOMIC_INIT(0);
+	unsigned idx = 0;
+	unsigned pool_offset = atomic_add_return(1, &start_pool);
+	unsigned shrink_pages = sc->nr_to_scan;
+	struct device_pools *p;
+
+	if (list_empty(&_manager->pools))
+		return 0;
+
+	mutex_lock(&_manager->lock);
+	pool_offset = pool_offset % _manager->npools;
+	list_for_each_entry(p, &_manager->pools, pools) {
+		unsigned nr_free;
+
+		if (!p->dev)
+			continue;
+		if (shrink_pages == 0)
+			break;
+		/* Do it in round-robin fashion. */
+		if (++idx < pool_offset)
+			continue;
+		nr_free = shrink_pages;
+		shrink_pages = ttm_dma_page_pool_free(p->pool, nr_free);
+		pr_debug("%s: (%s:%d) Asked to shrink %d, have %d more to go\n",
+			p->pool->dev_name, p->pool->name, current->pid, nr_free,
+			shrink_pages);
+	}
+	mutex_unlock(&_manager->lock);
+	/* return estimated number of unused pages in pool */
+	return ttm_dma_pool_get_num_unused_pages();
+}
+
+static void ttm_dma_pool_mm_shrink_init(struct ttm_pool_manager *manager)
+{
+	manager->mm_shrink.shrink = &ttm_dma_pool_mm_shrink;
+	manager->mm_shrink.seeks = 1;
+	register_shrinker(&manager->mm_shrink);
+}
+
+static void ttm_dma_pool_mm_shrink_fini(struct ttm_pool_manager *manager)
+{
+	unregister_shrinker(&manager->mm_shrink);
+}
+
+int ttm_dma_page_alloc_init(struct ttm_mem_global *glob, unsigned max_pages)
+{
+	int ret = -ENOMEM;
+
+	WARN_ON(_manager);
+
+	printk(KERN_INFO TTM_PFX "Initializing DMA pool allocator.\n");
+
+	_manager = kzalloc(sizeof(*_manager), GFP_KERNEL);
+	if (!_manager)
+		goto err_manager;
+
+	mutex_init(&_manager->lock);
+	INIT_LIST_HEAD(&_manager->pools);
+
+	_manager->options.max_size = max_pages;
+	_manager->options.small = SMALL_ALLOCATION;
+	_manager->options.alloc_size = NUM_PAGES_TO_ALLOC;
+
+	/* This takes care of auto-freeing the _manager */
+	ret = kobject_init_and_add(&_manager->kobj, &ttm_pool_kobj_type,
+				   &glob->kobj, "dma_pool");
+	if (unlikely(ret != 0)) {
+		kobject_put(&_manager->kobj);
+		goto err;
+	}
+	ttm_dma_pool_mm_shrink_init(_manager);
+	return 0;
+err_manager:
+	kfree(_manager);
+	_manager = NULL;
+err:
+	return ret;
+}
+
+void ttm_dma_page_alloc_fini(void)
+{
+	struct device_pools *p, *t;
+
+	printk(KERN_INFO TTM_PFX "Finalizing DMA pool allocator.\n");
+	ttm_dma_pool_mm_shrink_fini(_manager);
+
+	list_for_each_entry_safe_reverse(p, t, &_manager->pools, pools) {
+		dev_dbg(p->dev, "(%s:%d) Freeing.\n", p->pool->name,
+			current->pid);
+		WARN_ON(devres_destroy(p->dev, ttm_dma_pool_release,
+			ttm_dma_pool_match, p->pool));
+		ttm_dma_free_pool(p->dev, p->pool->type);
+	}
+	kobject_put(&_manager->kobj);
+	_manager = NULL;
+}
+
+int ttm_dma_page_alloc_debugfs(struct seq_file *m, void *data)
+{
+	struct device_pools *p;
+	struct dma_pool *pool = NULL;
+	char *h[] = {"pool", "refills", "pages freed", "inuse", "available",
+		     "name", "virt", "busaddr"};
+
+	if (!_manager) {
+		seq_printf(m, "No pool allocator running.\n");
+		return 0;
+	}
+	seq_printf(m, "%13s %12s %13s %8s %8s %8s\n",
+		   h[0], h[1], h[2], h[3], h[4], h[5]);
+	mutex_lock(&_manager->lock);
+	list_for_each_entry(p, &_manager->pools, pools) {
+		struct device *dev = p->dev;
+		if (!dev)
+			continue;
+		pool = p->pool;
+		seq_printf(m, "%13s %12ld %13ld %8d %8d %8s\n",
+				pool->name, pool->nrefills,
+				pool->nfrees, pool->npages_in_use,
+				pool->npages_free,
+				pool->dev_name);
+	}
+	mutex_unlock(&_manager->lock);
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ttm_dma_page_alloc_debugfs);
diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c
index f9cc548d6d98..2f75d203a2bf 100644
--- a/drivers/gpu/drm/ttm/ttm_tt.c
+++ b/drivers/gpu/drm/ttm/ttm_tt.c
@@ -43,139 +43,20 @@
 #include "ttm/ttm_placement.h"
 #include "ttm/ttm_page_alloc.h"
 
-static int ttm_tt_swapin(struct ttm_tt *ttm);
-
 /**
  * Allocates storage for pointers to the pages that back the ttm.
  */
 static void ttm_tt_alloc_page_directory(struct ttm_tt *ttm)
 {
-	ttm->pages = drm_calloc_large(ttm->num_pages, sizeof(*ttm->pages));
-	ttm->dma_address = drm_calloc_large(ttm->num_pages,
-					    sizeof(*ttm->dma_address));
-}
-
-static void ttm_tt_free_page_directory(struct ttm_tt *ttm)
-{
-	drm_free_large(ttm->pages);
-	ttm->pages = NULL;
-	drm_free_large(ttm->dma_address);
-	ttm->dma_address = NULL;
-}
-
-static void ttm_tt_free_user_pages(struct ttm_tt *ttm)
-{
-	int write;
-	int dirty;
-	struct page *page;
-	int i;
-	struct ttm_backend *be = ttm->be;
-
-	BUG_ON(!(ttm->page_flags & TTM_PAGE_FLAG_USER));
-	write = ((ttm->page_flags & TTM_PAGE_FLAG_WRITE) != 0);
-	dirty = ((ttm->page_flags & TTM_PAGE_FLAG_USER_DIRTY) != 0);
-
-	if (be)
-		be->func->clear(be);
-
-	for (i = 0; i < ttm->num_pages; ++i) {
-		page = ttm->pages[i];
-		if (page == NULL)
-			continue;
-
-		if (page == ttm->dummy_read_page) {
-			BUG_ON(write);
-			continue;
-		}
-
-		if (write && dirty && !PageReserved(page))
-			set_page_dirty_lock(page);
-
-		ttm->pages[i] = NULL;
-		ttm_mem_global_free(ttm->glob->mem_glob, PAGE_SIZE);
-		put_page(page);
-	}
-	ttm->state = tt_unpopulated;
-	ttm->first_himem_page = ttm->num_pages;
-	ttm->last_lomem_page = -1;
+	ttm->pages = drm_calloc_large(ttm->num_pages, sizeof(void*));
 }
 
-static struct page *__ttm_tt_get_page(struct ttm_tt *ttm, int index)
+static void ttm_dma_tt_alloc_page_directory(struct ttm_dma_tt *ttm)
 {
-	struct page *p;
-	struct list_head h;
-	struct ttm_mem_global *mem_glob = ttm->glob->mem_glob;
-	int ret;
-
-	while (NULL == (p = ttm->pages[index])) {
-
-		INIT_LIST_HEAD(&h);
-
-		ret = ttm_get_pages(&h, ttm->page_flags, ttm->caching_state, 1,
-				    &ttm->dma_address[index]);
-
-		if (ret != 0)
-			return NULL;
-
-		p = list_first_entry(&h, struct page, lru);
-
-		ret = ttm_mem_global_alloc_page(mem_glob, p, false, false);
-		if (unlikely(ret != 0))
-			goto out_err;
-
-		if (PageHighMem(p))
-			ttm->pages[--ttm->first_himem_page] = p;
-		else
-			ttm->pages[++ttm->last_lomem_page] = p;
-	}
-	return p;
-out_err:
-	put_page(p);
-	return NULL;
-}
-
-struct page *ttm_tt_get_page(struct ttm_tt *ttm, int index)
-{
-	int ret;
-
-	if (unlikely(ttm->page_flags & TTM_PAGE_FLAG_SWAPPED)) {
-		ret = ttm_tt_swapin(ttm);
-		if (unlikely(ret != 0))
-			return NULL;
-	}
-	return __ttm_tt_get_page(ttm, index);
-}
-
-int ttm_tt_populate(struct ttm_tt *ttm)
-{
-	struct page *page;
-	unsigned long i;
-	struct ttm_backend *be;
-	int ret;
-
-	if (ttm->state != tt_unpopulated)
-		return 0;
-
-	if (unlikely(ttm->page_flags & TTM_PAGE_FLAG_SWAPPED)) {
-		ret = ttm_tt_swapin(ttm);
-		if (unlikely(ret != 0))
-			return ret;
-	}
-
-	be = ttm->be;
-
-	for (i = 0; i < ttm->num_pages; ++i) {
-		page = __ttm_tt_get_page(ttm, i);
-		if (!page)
-			return -ENOMEM;
-	}
-
-	be->func->populate(be, ttm->num_pages, ttm->pages,
-			   ttm->dummy_read_page, ttm->dma_address);
-	ttm->state = tt_unbound;
-	return 0;
+	ttm->ttm.pages = drm_calloc_large(ttm->ttm.num_pages, sizeof(void*));
+	ttm->dma_address = drm_calloc_large(ttm->ttm.num_pages,
+					    sizeof(*ttm->dma_address));
 }
-EXPORT_SYMBOL(ttm_tt_populate);
 
 #ifdef CONFIG_X86
 static inline int ttm_tt_set_page_caching(struct page *p,
@@ -278,153 +159,100 @@ int ttm_tt_set_placement_caching(struct ttm_tt *ttm, uint32_t placement)
 }
 EXPORT_SYMBOL(ttm_tt_set_placement_caching);
 
-static void ttm_tt_free_alloced_pages(struct ttm_tt *ttm)
-{
-	int i;
-	unsigned count = 0;
-	struct list_head h;
-	struct page *cur_page;
-	struct ttm_backend *be = ttm->be;
-
-	INIT_LIST_HEAD(&h);
-
-	if (be)
-		be->func->clear(be);
-	for (i = 0; i < ttm->num_pages; ++i) {
-
-		cur_page = ttm->pages[i];
-		ttm->pages[i] = NULL;
-		if (cur_page) {
-			if (page_count(cur_page) != 1)
-				printk(KERN_ERR TTM_PFX
-				       "Erroneous page count. "
-				       "Leaking pages.\n");
-			ttm_mem_global_free_page(ttm->glob->mem_glob,
-						 cur_page);
-			list_add(&cur_page->lru, &h);
-			count++;
-		}
-	}
-	ttm_put_pages(&h, count, ttm->page_flags, ttm->caching_state,
-		      ttm->dma_address);
-	ttm->state = tt_unpopulated;
-	ttm->first_himem_page = ttm->num_pages;
-	ttm->last_lomem_page = -1;
-}
-
 void ttm_tt_destroy(struct ttm_tt *ttm)
 {
-	struct ttm_backend *be;
-
 	if (unlikely(ttm == NULL))
 		return;
 
-	be = ttm->be;
-	if (likely(be != NULL)) {
-		be->func->destroy(be);
-		ttm->be = NULL;
+	if (ttm->state == tt_bound) {
+		ttm_tt_unbind(ttm);
 	}
 
 	if (likely(ttm->pages != NULL)) {
-		if (ttm->page_flags & TTM_PAGE_FLAG_USER)
-			ttm_tt_free_user_pages(ttm);
-		else
-			ttm_tt_free_alloced_pages(ttm);
-
-		ttm_tt_free_page_directory(ttm);
+		ttm->bdev->driver->ttm_tt_unpopulate(ttm);
 	}
 
 	if (!(ttm->page_flags & TTM_PAGE_FLAG_PERSISTENT_SWAP) &&
 	    ttm->swap_storage)
 		fput(ttm->swap_storage);
 
-	kfree(ttm);
+	ttm->swap_storage = NULL;
+	ttm->func->destroy(ttm);
 }
 
-int ttm_tt_set_user(struct ttm_tt *ttm,
-		    struct task_struct *tsk,
-		    unsigned long start, unsigned long num_pages)
+int ttm_tt_init(struct ttm_tt *ttm, struct ttm_bo_device *bdev,
+		unsigned long size, uint32_t page_flags,
+		struct page *dummy_read_page)
 {
-	struct mm_struct *mm = tsk->mm;
-	int ret;
-	int write = (ttm->page_flags & TTM_PAGE_FLAG_WRITE) != 0;
-	struct ttm_mem_global *mem_glob = ttm->glob->mem_glob;
-
-	BUG_ON(num_pages != ttm->num_pages);
-	BUG_ON((ttm->page_flags & TTM_PAGE_FLAG_USER) == 0);
-
-	/**
-	 * Account user pages as lowmem pages for now.
-	 */
-
-	ret = ttm_mem_global_alloc(mem_glob, num_pages * PAGE_SIZE,
-				   false, false);
-	if (unlikely(ret != 0))
-		return ret;
-
-	down_read(&mm->mmap_sem);
-	ret = get_user_pages(tsk, mm, start, num_pages,
-			     write, 0, ttm->pages, NULL);
-	up_read(&mm->mmap_sem);
+	ttm->bdev = bdev;
+	ttm->glob = bdev->glob;
+	ttm->num_pages = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
+	ttm->caching_state = tt_cached;
+	ttm->page_flags = page_flags;
+	ttm->dummy_read_page = dummy_read_page;
+	ttm->state = tt_unpopulated;
+	ttm->swap_storage = NULL;
 
-	if (ret != num_pages && write) {
-		ttm_tt_free_user_pages(ttm);
-		ttm_mem_global_free(mem_glob, num_pages * PAGE_SIZE);
+	ttm_tt_alloc_page_directory(ttm);
+	if (!ttm->pages) {
+		ttm_tt_destroy(ttm);
+		printk(KERN_ERR TTM_PFX "Failed allocating page table\n");
 		return -ENOMEM;
 	}
-
-	ttm->tsk = tsk;
-	ttm->start = start;
-	ttm->state = tt_unbound;
-
 	return 0;
 }
+EXPORT_SYMBOL(ttm_tt_init);
 
-struct ttm_tt *ttm_tt_create(struct ttm_bo_device *bdev, unsigned long size,
-			     uint32_t page_flags, struct page *dummy_read_page)
+void ttm_tt_fini(struct ttm_tt *ttm)
 {
-	struct ttm_bo_driver *bo_driver = bdev->driver;
-	struct ttm_tt *ttm;
-
-	if (!bo_driver)
-		return NULL;
+	drm_free_large(ttm->pages);
+	ttm->pages = NULL;
+}
+EXPORT_SYMBOL(ttm_tt_fini);
 
-	ttm = kzalloc(sizeof(*ttm), GFP_KERNEL);
-	if (!ttm)
-		return NULL;
+int ttm_dma_tt_init(struct ttm_dma_tt *ttm_dma, struct ttm_bo_device *bdev,
+		unsigned long size, uint32_t page_flags,
+		struct page *dummy_read_page)
+{
+	struct ttm_tt *ttm = &ttm_dma->ttm;
 
+	ttm->bdev = bdev;
 	ttm->glob = bdev->glob;
 	ttm->num_pages = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
-	ttm->first_himem_page = ttm->num_pages;
-	ttm->last_lomem_page = -1;
 	ttm->caching_state = tt_cached;
 	ttm->page_flags = page_flags;
-
 	ttm->dummy_read_page = dummy_read_page;
+	ttm->state = tt_unpopulated;
+	ttm->swap_storage = NULL;
 
-	ttm_tt_alloc_page_directory(ttm);
-	if (!ttm->pages) {
+	INIT_LIST_HEAD(&ttm_dma->pages_list);
+	ttm_dma_tt_alloc_page_directory(ttm_dma);
+	if (!ttm->pages || !ttm_dma->dma_address) {
 		ttm_tt_destroy(ttm);
 		printk(KERN_ERR TTM_PFX "Failed allocating page table\n");
-		return NULL;
-	}
-	ttm->be = bo_driver->create_ttm_backend_entry(bdev);
-	if (!ttm->be) {
-		ttm_tt_destroy(ttm);
-		printk(KERN_ERR TTM_PFX "Failed creating ttm backend entry\n");
-		return NULL;
+		return -ENOMEM;
 	}
-	ttm->state = tt_unpopulated;
-	return ttm;
+	return 0;
 }
+EXPORT_SYMBOL(ttm_dma_tt_init);
+
+void ttm_dma_tt_fini(struct ttm_dma_tt *ttm_dma)
+{
+	struct ttm_tt *ttm = &ttm_dma->ttm;
+
+	drm_free_large(ttm->pages);
+	ttm->pages = NULL;
+	drm_free_large(ttm_dma->dma_address);
+	ttm_dma->dma_address = NULL;
+}
+EXPORT_SYMBOL(ttm_dma_tt_fini);
 
 void ttm_tt_unbind(struct ttm_tt *ttm)
 {
 	int ret;
-	struct ttm_backend *be = ttm->be;
 
 	if (ttm->state == tt_bound) {
-		ret = be->func->unbind(be);
+		ret = ttm->func->unbind(ttm);
 		BUG_ON(ret);
 		ttm->state = tt_unbound;
 	}
@@ -433,7 +261,6 @@ void ttm_tt_unbind(struct ttm_tt *ttm)
 int ttm_tt_bind(struct ttm_tt *ttm, struct ttm_mem_reg *bo_mem)
 {
 	int ret = 0;
-	struct ttm_backend *be;
 
 	if (!ttm)
 		return -EINVAL;
@@ -441,25 +268,21 @@ int ttm_tt_bind(struct ttm_tt *ttm, struct ttm_mem_reg *bo_mem)
 	if (ttm->state == tt_bound)
 		return 0;
 
-	be = ttm->be;
-
-	ret = ttm_tt_populate(ttm);
+	ret = ttm->bdev->driver->ttm_tt_populate(ttm);
 	if (ret)
 		return ret;
 
-	ret = be->func->bind(be, bo_mem);
+	ret = ttm->func->bind(ttm, bo_mem);
 	if (unlikely(ret != 0))
 		return ret;
 
 	ttm->state = tt_bound;
 
-	if (ttm->page_flags & TTM_PAGE_FLAG_USER)
-		ttm->page_flags |= TTM_PAGE_FLAG_USER_DIRTY;
 	return 0;
 }
 EXPORT_SYMBOL(ttm_tt_bind);
 
-static int ttm_tt_swapin(struct ttm_tt *ttm)
+int ttm_tt_swapin(struct ttm_tt *ttm)
 {
 	struct address_space *swap_space;
 	struct file *swap_storage;
@@ -470,16 +293,6 @@ static int ttm_tt_swapin(struct ttm_tt *ttm)
 	int i;
 	int ret = -ENOMEM;
 
-	if (ttm->page_flags & TTM_PAGE_FLAG_USER) {
-		ret = ttm_tt_set_user(ttm, ttm->tsk, ttm->start,
-				      ttm->num_pages);
-		if (unlikely(ret != 0))
-			return ret;
-
-		ttm->page_flags &= ~TTM_PAGE_FLAG_SWAPPED;
-		return 0;
-	}
-
 	swap_storage = ttm->swap_storage;
 	BUG_ON(swap_storage == NULL);
 
@@ -491,7 +304,7 @@ static int ttm_tt_swapin(struct ttm_tt *ttm)
 			ret = PTR_ERR(from_page);
 			goto out_err;
 		}
-		to_page = __ttm_tt_get_page(ttm, i);
+		to_page = ttm->pages[i];
 		if (unlikely(to_page == NULL))
 			goto out_err;
 
@@ -512,7 +325,6 @@ static int ttm_tt_swapin(struct ttm_tt *ttm)
 
 	return 0;
 out_err:
-	ttm_tt_free_alloced_pages(ttm);
 	return ret;
 }
 
@@ -530,18 +342,6 @@ int ttm_tt_swapout(struct ttm_tt *ttm, struct file *persistent_swap_storage)
 	BUG_ON(ttm->state != tt_unbound && ttm->state != tt_unpopulated);
 	BUG_ON(ttm->caching_state != tt_cached);
 
-	/*
-	 * For user buffers, just unpin the pages, as there should be
-	 * vma references.
-	 */
-
-	if (ttm->page_flags & TTM_PAGE_FLAG_USER) {
-		ttm_tt_free_user_pages(ttm);
-		ttm->page_flags |= TTM_PAGE_FLAG_SWAPPED;
-		ttm->swap_storage = NULL;
-		return 0;
-	}
-
 	if (!persistent_swap_storage) {
 		swap_storage = shmem_file_setup("ttm swap",
 						ttm->num_pages << PAGE_SHIFT,
@@ -576,7 +376,7 @@ int ttm_tt_swapout(struct ttm_tt *ttm, struct file *persistent_swap_storage)
 		page_cache_release(to_page);
 	}
 
-	ttm_tt_free_alloced_pages(ttm);
+	ttm->bdev->driver->ttm_tt_unpopulate(ttm);
 	ttm->swap_storage = swap_storage;
 	ttm->page_flags |= TTM_PAGE_FLAG_SWAPPED;
 	if (persistent_swap_storage)
diff --git a/drivers/gpu/drm/via/via_drv.c b/drivers/gpu/drm/via/via_drv.c
index a83e86d3956c..02661f35f7a0 100644
--- a/drivers/gpu/drm/via/via_drv.c
+++ b/drivers/gpu/drm/via/via_drv.c
@@ -30,16 +30,52 @@
 
 #include "drm_pciids.h"
 
+static int via_driver_open(struct drm_device *dev, struct drm_file *file)
+{
+	struct via_file_private *file_priv;
+
+	DRM_DEBUG_DRIVER("\n");
+	file_priv = kmalloc(sizeof(*file_priv), GFP_KERNEL);
+	if (!file_priv)
+		return -ENOMEM;
+
+	file->driver_priv = file_priv;
+
+	INIT_LIST_HEAD(&file_priv->obj_list);
+
+	return 0;
+}
+
+void via_driver_postclose(struct drm_device *dev, struct drm_file *file)
+{
+	struct via_file_private *file_priv = file->driver_priv;
+
+	kfree(file_priv);
+}
+
 static struct pci_device_id pciidlist[] = {
 	viadrv_PCI_IDS
 };
 
+static const struct file_operations via_driver_fops = {
+	.owner = THIS_MODULE,
+	.open = drm_open,
+	.release = drm_release,
+	.unlocked_ioctl = drm_ioctl,
+	.mmap = drm_mmap,
+	.poll = drm_poll,
+	.fasync = drm_fasync,
+	.llseek = noop_llseek,
+};
+
 static struct drm_driver driver = {
 	.driver_features =
 	    DRIVER_USE_AGP | DRIVER_USE_MTRR | DRIVER_HAVE_IRQ |
 	    DRIVER_IRQ_SHARED,
 	.load = via_driver_load,
 	.unload = via_driver_unload,
+	.open = via_driver_open,
+	.postclose = via_driver_postclose,
 	.context_dtor = via_final_context,
 	.get_vblank_counter = via_get_vblank_counter,
 	.enable_vblank = via_enable_vblank,
@@ -54,17 +90,7 @@ static struct drm_driver driver = {
 	.reclaim_buffers_idlelocked = via_reclaim_buffers_locked,
 	.lastclose = via_lastclose,
 	.ioctls = via_ioctls,
-	.fops = {
-		.owner = THIS_MODULE,
-		.open = drm_open,
-		.release = drm_release,
-		.unlocked_ioctl = drm_ioctl,
-		.mmap = drm_mmap,
-		.poll = drm_poll,
-		.fasync = drm_fasync,
-		.llseek = noop_llseek,
-		},
-
+	.fops = &via_driver_fops,
 	.name = DRIVER_NAME,
 	.desc = DRIVER_DESC,
 	.date = DRIVER_DATE,
diff --git a/drivers/gpu/drm/via/via_drv.h b/drivers/gpu/drm/via/via_drv.h
index 9cf87d912325..88edacc93006 100644
--- a/drivers/gpu/drm/via/via_drv.h
+++ b/drivers/gpu/drm/via/via_drv.h
@@ -24,7 +24,7 @@
 #ifndef _VIA_DRV_H_
 #define _VIA_DRV_H_
 
-#include "drm_sman.h"
+#include "drm_mm.h"
 #define DRIVER_AUTHOR	"Various"
 
 #define DRIVER_NAME		"via"
@@ -88,9 +88,12 @@ typedef struct drm_via_private {
 	uint32_t irq_pending_mask;
 	int *irq_map;
 	unsigned int idle_fault;
-	struct drm_sman sman;
 	int vram_initialized;
+	struct drm_mm vram_mm;
 	int agp_initialized;
+	struct drm_mm agp_mm;
+	/** Mapping of userspace keys to mm objects */
+	struct idr object_idr;
 	unsigned long vram_offset;
 	unsigned long agp_offset;
 	drm_via_blitq_t blit_queues[VIA_NUM_BLIT_ENGINES];
diff --git a/drivers/gpu/drm/via/via_map.c b/drivers/gpu/drm/via/via_map.c
index 6cca9a709f7a..a2ab34365151 100644
--- a/drivers/gpu/drm/via/via_map.c
+++ b/drivers/gpu/drm/via/via_map.c
@@ -104,15 +104,10 @@ int via_driver_load(struct drm_device *dev, unsigned long chipset)
 
 	dev_priv->chipset = chipset;
 
-	ret = drm_sman_init(&dev_priv->sman, 2, 12, 8);
-	if (ret) {
-		kfree(dev_priv);
-		return ret;
-	}
+	idr_init(&dev->object_name_idr);
 
 	ret = drm_vblank_init(dev, 1);
 	if (ret) {
-		drm_sman_takedown(&dev_priv->sman);
 		kfree(dev_priv);
 		return ret;
 	}
@@ -124,7 +119,8 @@ int via_driver_unload(struct drm_device *dev)
 {
 	drm_via_private_t *dev_priv = dev->dev_private;
 
-	drm_sman_takedown(&dev_priv->sman);
+	idr_remove_all(&dev_priv->object_idr);
+	idr_destroy(&dev_priv->object_idr);
 
 	kfree(dev_priv);
 
diff --git a/drivers/gpu/drm/via/via_mm.c b/drivers/gpu/drm/via/via_mm.c
index 6cc2dadae3ef..a3574d09a07d 100644
--- a/drivers/gpu/drm/via/via_mm.c
+++ b/drivers/gpu/drm/via/via_mm.c
@@ -28,26 +28,22 @@
 #include "drmP.h"
 #include "via_drm.h"
 #include "via_drv.h"
-#include "drm_sman.h"
 
 #define VIA_MM_ALIGN_SHIFT 4
 #define VIA_MM_ALIGN_MASK ((1 << VIA_MM_ALIGN_SHIFT) - 1)
 
+struct via_memblock {
+	struct drm_mm_node mm_node;
+	struct list_head owner_list;
+};
+
 int via_agp_init(struct drm_device *dev, void *data, struct drm_file *file_priv)
 {
 	drm_via_agp_t *agp = data;
 	drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
-	int ret;
 
 	mutex_lock(&dev->struct_mutex);
-	ret = drm_sman_set_range(&dev_priv->sman, VIA_MEM_AGP, 0,
-				 agp->size >> VIA_MM_ALIGN_SHIFT);
-
-	if (ret) {
-		DRM_ERROR("AGP memory manager initialisation error\n");
-		mutex_unlock(&dev->struct_mutex);
-		return ret;
-	}
+	drm_mm_init(&dev_priv->agp_mm, 0, agp->size >> VIA_MM_ALIGN_SHIFT);
 
 	dev_priv->agp_initialized = 1;
 	dev_priv->agp_offset = agp->offset;
@@ -61,17 +57,9 @@ int via_fb_init(struct drm_device *dev, void *data, struct drm_file *file_priv)
 {
 	drm_via_fb_t *fb = data;
 	drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
-	int ret;
 
 	mutex_lock(&dev->struct_mutex);
-	ret = drm_sman_set_range(&dev_priv->sman, VIA_MEM_VIDEO, 0,
-				 fb->size >> VIA_MM_ALIGN_SHIFT);
-
-	if (ret) {
-		DRM_ERROR("VRAM memory manager initialisation error\n");
-		mutex_unlock(&dev->struct_mutex);
-		return ret;
-	}
+	drm_mm_init(&dev_priv->vram_mm, 0, fb->size >> VIA_MM_ALIGN_SHIFT);
 
 	dev_priv->vram_initialized = 1;
 	dev_priv->vram_offset = fb->offset;
@@ -108,19 +96,25 @@ void via_lastclose(struct drm_device *dev)
 		return;
 
 	mutex_lock(&dev->struct_mutex);
-	drm_sman_cleanup(&dev_priv->sman);
-	dev_priv->vram_initialized = 0;
-	dev_priv->agp_initialized = 0;
+	if (dev_priv->vram_initialized) {
+		drm_mm_takedown(&dev_priv->vram_mm);
+		dev_priv->vram_initialized = 0;
+	}
+	if (dev_priv->agp_initialized) {
+		drm_mm_takedown(&dev_priv->agp_mm);
+		dev_priv->agp_initialized = 0;
+	}
 	mutex_unlock(&dev->struct_mutex);
 }
 
 int via_mem_alloc(struct drm_device *dev, void *data,
-		  struct drm_file *file_priv)
+		  struct drm_file *file)
 {
 	drm_via_mem_t *mem = data;
-	int retval = 0;
-	struct drm_memblock_item *item;
+	int retval = 0, user_key;
+	struct via_memblock *item;
 	drm_via_private_t *dev_priv = (drm_via_private_t *) dev->dev_private;
+	struct via_file_private *file_priv = file->driver_priv;
 	unsigned long tmpSize;
 
 	if (mem->type > VIA_MEM_AGP) {
@@ -136,24 +130,57 @@ int via_mem_alloc(struct drm_device *dev, void *data,
 		return -EINVAL;
 	}
 
+	item = kzalloc(sizeof(*item), GFP_KERNEL);
+	if (!item) {
+		retval = -ENOMEM;
+		goto fail_alloc;
+	}
+
 	tmpSize = (mem->size + VIA_MM_ALIGN_MASK) >> VIA_MM_ALIGN_SHIFT;
-	item = drm_sman_alloc(&dev_priv->sman, mem->type, tmpSize, 0,
-			      (unsigned long)file_priv);
-	mutex_unlock(&dev->struct_mutex);
-	if (item) {
-		mem->offset = ((mem->type == VIA_MEM_VIDEO) ?
-			      dev_priv->vram_offset : dev_priv->agp_offset) +
-		    (item->mm->
-		     offset(item->mm, item->mm_info) << VIA_MM_ALIGN_SHIFT);
-		mem->index = item->user_hash.key;
-	} else {
-		mem->offset = 0;
-		mem->size = 0;
-		mem->index = 0;
-		DRM_DEBUG("Video memory allocation failed\n");
+	if (mem->type == VIA_MEM_AGP)
+		retval = drm_mm_insert_node(&dev_priv->agp_mm,
+					    &item->mm_node,
+					    tmpSize, 0);
+	else
+		retval = drm_mm_insert_node(&dev_priv->vram_mm,
+					    &item->mm_node,
+					    tmpSize, 0);
+	if (retval)
+		goto fail_alloc;
+
+again:
+	if (idr_pre_get(&dev_priv->object_idr, GFP_KERNEL) == 0) {
 		retval = -ENOMEM;
+		goto fail_idr;
 	}
 
+	retval = idr_get_new_above(&dev_priv->object_idr, item, 1, &user_key);
+	if (retval == -EAGAIN)
+		goto again;
+	if (retval)
+		goto fail_idr;
+
+	list_add(&item->owner_list, &file_priv->obj_list);
+	mutex_unlock(&dev->struct_mutex);
+
+	mem->offset = ((mem->type == VIA_MEM_VIDEO) ?
+		      dev_priv->vram_offset : dev_priv->agp_offset) +
+	    ((item->mm_node.start) << VIA_MM_ALIGN_SHIFT);
+	mem->index = user_key;
+
+	return 0;
+
+fail_idr:
+	drm_mm_remove_node(&item->mm_node);
+fail_alloc:
+	kfree(item);
+	mutex_unlock(&dev->struct_mutex);
+
+	mem->offset = 0;
+	mem->size = 0;
+	mem->index = 0;
+	DRM_DEBUG("Video memory allocation failed\n");
+
 	return retval;
 }
 
@@ -161,24 +188,35 @@ int via_mem_free(struct drm_device *dev, void *data, struct drm_file *file_priv)
 {
 	drm_via_private_t *dev_priv = dev->dev_private;
 	drm_via_mem_t *mem = data;
-	int ret;
+	struct via_memblock *obj;
 
 	mutex_lock(&dev->struct_mutex);
-	ret = drm_sman_free_key(&dev_priv->sman, mem->index);
+	obj = idr_find(&dev_priv->object_idr, mem->index);
+	if (obj == NULL) {
+		mutex_unlock(&dev->struct_mutex);
+		return -EINVAL;
+	}
+
+	idr_remove(&dev_priv->object_idr, mem->index);
+	list_del(&obj->owner_list);
+	drm_mm_remove_node(&obj->mm_node);
+	kfree(obj);
 	mutex_unlock(&dev->struct_mutex);
+
 	DRM_DEBUG("free = 0x%lx\n", mem->index);
 
-	return ret;
+	return 0;
 }
 
 
 void via_reclaim_buffers_locked(struct drm_device *dev,
-				struct drm_file *file_priv)
+				struct drm_file *file)
 {
-	drm_via_private_t *dev_priv = dev->dev_private;
+	struct via_file_private *file_priv = file->driver_priv;
+	struct via_memblock *entry, *next;
 
 	mutex_lock(&dev->struct_mutex);
-	if (drm_sman_owner_clean(&dev_priv->sman, (unsigned long)file_priv)) {
+	if (list_empty(&file_priv->obj_list)) {
 		mutex_unlock(&dev->struct_mutex);
 		return;
 	}
@@ -186,7 +224,12 @@ void via_reclaim_buffers_locked(struct drm_device *dev,
 	if (dev->driver->dma_quiescent)
 		dev->driver->dma_quiescent(dev);
 
-	drm_sman_owner_cleanup(&dev_priv->sman, (unsigned long)file_priv);
+	list_for_each_entry_safe(entry, next, &file_priv->obj_list,
+				 owner_list) {
+		list_del(&entry->owner_list);
+		drm_mm_remove_node(&entry->mm_node);
+		kfree(entry);
+	}
 	mutex_unlock(&dev->struct_mutex);
 	return;
 }
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c b/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c
index 5a72ed908232..1e2c0fb7f786 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_buffer.c
@@ -28,6 +28,7 @@
 #include "vmwgfx_drv.h"
 #include "ttm/ttm_bo_driver.h"
 #include "ttm/ttm_placement.h"
+#include "ttm/ttm_page_alloc.h"
 
 static uint32_t vram_placement_flags = TTM_PL_FLAG_VRAM |
 	TTM_PL_FLAG_CACHED;
@@ -139,85 +140,63 @@ struct ttm_placement vmw_srf_placement = {
 	.busy_placement = gmr_vram_placement_flags
 };
 
-struct vmw_ttm_backend {
-	struct ttm_backend backend;
-	struct page **pages;
-	unsigned long num_pages;
+struct vmw_ttm_tt {
+	struct ttm_tt ttm;
 	struct vmw_private *dev_priv;
 	int gmr_id;
 };
 
-static int vmw_ttm_populate(struct ttm_backend *backend,
-			    unsigned long num_pages, struct page **pages,
-			    struct page *dummy_read_page,
-			    dma_addr_t *dma_addrs)
+static int vmw_ttm_bind(struct ttm_tt *ttm, struct ttm_mem_reg *bo_mem)
 {
-	struct vmw_ttm_backend *vmw_be =
-	    container_of(backend, struct vmw_ttm_backend, backend);
-
-	vmw_be->pages = pages;
-	vmw_be->num_pages = num_pages;
-
-	return 0;
-}
-
-static int vmw_ttm_bind(struct ttm_backend *backend, struct ttm_mem_reg *bo_mem)
-{
-	struct vmw_ttm_backend *vmw_be =
-	    container_of(backend, struct vmw_ttm_backend, backend);
+	struct vmw_ttm_tt *vmw_be = container_of(ttm, struct vmw_ttm_tt, ttm);
 
 	vmw_be->gmr_id = bo_mem->start;
 
-	return vmw_gmr_bind(vmw_be->dev_priv, vmw_be->pages,
-			    vmw_be->num_pages, vmw_be->gmr_id);
+	return vmw_gmr_bind(vmw_be->dev_priv, ttm->pages,
+			    ttm->num_pages, vmw_be->gmr_id);
 }
 
-static int vmw_ttm_unbind(struct ttm_backend *backend)
+static int vmw_ttm_unbind(struct ttm_tt *ttm)
 {
-	struct vmw_ttm_backend *vmw_be =
-	    container_of(backend, struct vmw_ttm_backend, backend);
+	struct vmw_ttm_tt *vmw_be = container_of(ttm, struct vmw_ttm_tt, ttm);
 
 	vmw_gmr_unbind(vmw_be->dev_priv, vmw_be->gmr_id);
 	return 0;
 }
 
-static void vmw_ttm_clear(struct ttm_backend *backend)
+static void vmw_ttm_destroy(struct ttm_tt *ttm)
 {
-	struct vmw_ttm_backend *vmw_be =
-		container_of(backend, struct vmw_ttm_backend, backend);
-
-	vmw_be->pages = NULL;
-	vmw_be->num_pages = 0;
-}
-
-static void vmw_ttm_destroy(struct ttm_backend *backend)
-{
-	struct vmw_ttm_backend *vmw_be =
-	    container_of(backend, struct vmw_ttm_backend, backend);
+	struct vmw_ttm_tt *vmw_be = container_of(ttm, struct vmw_ttm_tt, ttm);
 
+	ttm_tt_fini(ttm);
 	kfree(vmw_be);
 }
 
 static struct ttm_backend_func vmw_ttm_func = {
-	.populate = vmw_ttm_populate,
-	.clear = vmw_ttm_clear,
 	.bind = vmw_ttm_bind,
 	.unbind = vmw_ttm_unbind,
 	.destroy = vmw_ttm_destroy,
 };
 
-struct ttm_backend *vmw_ttm_backend_init(struct ttm_bo_device *bdev)
+struct ttm_tt *vmw_ttm_tt_create(struct ttm_bo_device *bdev,
+				 unsigned long size, uint32_t page_flags,
+				 struct page *dummy_read_page)
 {
-	struct vmw_ttm_backend *vmw_be;
+	struct vmw_ttm_tt *vmw_be;
 
 	vmw_be = kmalloc(sizeof(*vmw_be), GFP_KERNEL);
 	if (!vmw_be)
 		return NULL;
 
-	vmw_be->backend.func = &vmw_ttm_func;
+	vmw_be->ttm.func = &vmw_ttm_func;
 	vmw_be->dev_priv = container_of(bdev, struct vmw_private, bdev);
 
-	return &vmw_be->backend;
+	if (ttm_tt_init(&vmw_be->ttm, bdev, size, page_flags, dummy_read_page)) {
+		kfree(vmw_be);
+		return NULL;
+	}
+
+	return &vmw_be->ttm;
 }
 
 int vmw_invalidate_caches(struct ttm_bo_device *bdev, uint32_t flags)
@@ -357,7 +336,9 @@ static int vmw_sync_obj_wait(void *sync_obj, void *sync_arg,
 }
 
 struct ttm_bo_driver vmw_bo_driver = {
-	.create_ttm_backend_entry = vmw_ttm_backend_init,
+	.ttm_tt_create = &vmw_ttm_tt_create,
+	.ttm_tt_populate = &ttm_pool_populate,
+	.ttm_tt_unpopulate = &ttm_pool_unpopulate,
 	.invalidate_caches = vmw_invalidate_caches,
 	.init_mem_type = vmw_init_mem_type,
 	.evict_flags = vmw_evict_flags,
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index dff8fc767152..f390f5f9cb68 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -1064,6 +1064,21 @@ static const struct dev_pm_ops vmw_pm_ops = {
 	.resume = vmw_pm_resume,
 };
 
+static const struct file_operations vmwgfx_driver_fops = {
+	.owner = THIS_MODULE,
+	.open = drm_open,
+	.release = drm_release,
+	.unlocked_ioctl = vmw_unlocked_ioctl,
+	.mmap = vmw_mmap,
+	.poll = vmw_fops_poll,
+	.read = vmw_fops_read,
+	.fasync = drm_fasync,
+#if defined(CONFIG_COMPAT)
+	.compat_ioctl = drm_compat_ioctl,
+#endif
+	.llseek = noop_llseek,
+};
+
 static struct drm_driver driver = {
 	.driver_features = DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED |
 	DRIVER_MODESET,
@@ -1088,20 +1103,7 @@ static struct drm_driver driver = {
 	.master_drop = vmw_master_drop,
 	.open = vmw_driver_open,
 	.postclose = vmw_postclose,
-	.fops = {
-		 .owner = THIS_MODULE,
-		 .open = drm_open,
-		 .release = drm_release,
-		 .unlocked_ioctl = vmw_unlocked_ioctl,
-		 .mmap = vmw_mmap,
-		 .poll = vmw_fops_poll,
-		 .read = vmw_fops_read,
-		 .fasync = drm_fasync,
-#if defined(CONFIG_COMPAT)
-		 .compat_ioctl = drm_compat_ioctl,
-#endif
-		 .llseek = noop_llseek,
-	},
+	.fops = &vmwgfx_driver_fops,
 	.name = VMWGFX_DRIVER_NAME,
 	.desc = VMWGFX_DRIVER_DESC,
 	.date = VMWGFX_DRIVER_DATE,
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
index f94b33ae2215..0af6ebdf205d 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -690,7 +690,7 @@ static int vmw_kms_new_framebuffer_surface(struct vmw_private *dev_priv,
 
 	/* XXX get the first 3 from the surface info */
 	vfbs->base.base.bits_per_pixel = mode_cmd->bpp;
-	vfbs->base.base.pitch = mode_cmd->pitch;
+	vfbs->base.base.pitches[0] = mode_cmd->pitch;
 	vfbs->base.base.depth = mode_cmd->depth;
 	vfbs->base.base.width = mode_cmd->width;
 	vfbs->base.base.height = mode_cmd->height;
@@ -804,7 +804,7 @@ static int do_dmabuf_define_gmrfb(struct drm_file *file_priv,
 	cmd->body.format.bitsPerPixel = framebuffer->base.bits_per_pixel;
 	cmd->body.format.colorDepth = depth;
 	cmd->body.format.reserved = 0;
-	cmd->body.bytesPerLine = framebuffer->base.pitch;
+	cmd->body.bytesPerLine = framebuffer->base.pitches[0];
 	cmd->body.ptr.gmrId = framebuffer->user_handle;
 	cmd->body.ptr.offset = 0;
 
@@ -1056,7 +1056,7 @@ static int vmw_kms_new_framebuffer_dmabuf(struct vmw_private *dev_priv,
 	}
 
 	vfbd->base.base.bits_per_pixel = mode_cmd->bpp;
-	vfbd->base.base.pitch = mode_cmd->pitch;
+	vfbd->base.base.pitches[0] = mode_cmd->pitch;
 	vfbd->base.base.depth = mode_cmd->depth;
 	vfbd->base.base.width = mode_cmd->width;
 	vfbd->base.base.height = mode_cmd->height;
@@ -1085,7 +1085,7 @@ out_err1:
 
 static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev,
 						 struct drm_file *file_priv,
-						 struct drm_mode_fb_cmd *mode_cmd)
+						 struct drm_mode_fb_cmd2 *mode_cmd2)
 {
 	struct vmw_private *dev_priv = vmw_priv(dev);
 	struct ttm_object_file *tfile = vmw_fpriv(file_priv)->tfile;
@@ -1093,8 +1093,16 @@ static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev,
 	struct vmw_surface *surface = NULL;
 	struct vmw_dma_buffer *bo = NULL;
 	struct ttm_base_object *user_obj;
+	struct drm_mode_fb_cmd mode_cmd;
 	int ret;
 
+	mode_cmd.width = mode_cmd2->width;
+	mode_cmd.height = mode_cmd2->height;
+	mode_cmd.pitch = mode_cmd2->pitches[0];
+	mode_cmd.handle = mode_cmd2->handles[0];
+	drm_fb_get_bpp_depth(mode_cmd2->pixel_format, &mode_cmd.depth,
+				    &mode_cmd.bpp);
+
 	/**
 	 * This code should be conditioned on Screen Objects not being used.
 	 * If screen objects are used, we can allocate a GMR to hold the
@@ -1102,8 +1110,8 @@ static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev,
 	 */
 
 	if (!vmw_kms_validate_mode_vram(dev_priv,
-					mode_cmd->pitch,
-					mode_cmd->height)) {
+					mode_cmd.pitch,
+					mode_cmd.height)) {
 		DRM_ERROR("VRAM size is too small for requested mode.\n");
 		return ERR_PTR(-ENOMEM);
 	}
@@ -1117,15 +1125,19 @@ static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev,
 	 * command stream using user-space handles.
 	 */
 
-	user_obj = ttm_base_object_lookup(tfile, mode_cmd->handle);
+	user_obj = ttm_base_object_lookup(tfile, mode_cmd.handle);
 	if (unlikely(user_obj == NULL)) {
 		DRM_ERROR("Could not locate requested kms frame buffer.\n");
 		return ERR_PTR(-ENOENT);
 	}
 
+	/**
+	 * End conditioned code.
+	 */
+
 	/* returns either a dmabuf or surface */
 	ret = vmw_user_lookup_handle(dev_priv, tfile,
-				     mode_cmd->handle,
+				     mode_cmd.handle,
 				     &surface, &bo);
 	if (ret)
 		goto err_out;
@@ -1133,10 +1145,10 @@ static struct drm_framebuffer *vmw_kms_fb_create(struct drm_device *dev,
 	/* Create the new framebuffer depending one what we got back */
 	if (bo)
 		ret = vmw_kms_new_framebuffer_dmabuf(dev_priv, bo, &vfb,
-						     mode_cmd);
+						     &mode_cmd);
 	else if (surface)
 		ret = vmw_kms_new_framebuffer_surface(dev_priv, file_priv,
-						      surface, &vfb, mode_cmd);
+						      surface, &vfb, &mode_cmd);
 	else
 		BUG();
 
@@ -1344,7 +1356,7 @@ int vmw_kms_readback(struct vmw_private *dev_priv,
 	cmd->body.format.bitsPerPixel = vfb->base.bits_per_pixel;
 	cmd->body.format.colorDepth = vfb->base.depth;
 	cmd->body.format.reserved = 0;
-	cmd->body.bytesPerLine = vfb->base.pitch;
+	cmd->body.bytesPerLine = vfb->base.pitches[0];
 	cmd->body.ptr.gmrId = vfb->user_handle;
 	cmd->body.ptr.offset = 0;
 
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h
index e1cb8556355f..a4f7f034996a 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.h
@@ -29,6 +29,7 @@
 #define VMWGFX_KMS_H_
 
 #include "drmP.h"
+#include "drm_crtc_helper.h"
 #include "vmwgfx_drv.h"
 
 #define VMWGFX_NUM_DISPLAY_UNITS 8
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c
index 8f8dbd43c33d..f77b184be807 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ldu.c
@@ -95,7 +95,7 @@ static int vmw_ldu_commit_list(struct vmw_private *dev_priv)
 			return 0;
 		fb = entry->base.crtc.fb;
 
-		return vmw_kms_write_svga(dev_priv, w, h, fb->pitch,
+		return vmw_kms_write_svga(dev_priv, w, h, fb->pitches[0],
 					  fb->bits_per_pixel, fb->depth);
 	}
 
@@ -103,7 +103,7 @@ static int vmw_ldu_commit_list(struct vmw_private *dev_priv)
 		entry = list_entry(lds->active.next, typeof(*entry), active);
 		fb = entry->base.crtc.fb;
 
-		vmw_kms_write_svga(dev_priv, fb->width, fb->height, fb->pitch,
+		vmw_kms_write_svga(dev_priv, fb->width, fb->height, fb->pitches[0],
 				   fb->bits_per_pixel, fb->depth);
 	}
 
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
index 1c7f09e26819..a37abb581cbb 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_resource.c
@@ -1540,29 +1540,10 @@ out_bad_surface:
 /**
  * Buffer management.
  */
-
-static size_t vmw_dmabuf_acc_size(struct ttm_bo_global *glob,
-				  unsigned long num_pages)
-{
-	static size_t bo_user_size = ~0;
-
-	size_t page_array_size =
-	    (num_pages * sizeof(void *) + PAGE_SIZE - 1) & PAGE_MASK;
-
-	if (unlikely(bo_user_size == ~0)) {
-		bo_user_size = glob->ttm_bo_extra_size +
-		    ttm_round_pot(sizeof(struct vmw_dma_buffer));
-	}
-
-	return bo_user_size + page_array_size;
-}
-
 void vmw_dmabuf_bo_free(struct ttm_buffer_object *bo)
 {
 	struct vmw_dma_buffer *vmw_bo = vmw_dma_buffer(bo);
-	struct ttm_bo_global *glob = bo->glob;
 
-	ttm_mem_global_free(glob->mem_glob, bo->acc_size);
 	kfree(vmw_bo);
 }
 
@@ -1573,24 +1554,12 @@ int vmw_dmabuf_init(struct vmw_private *dev_priv,
 		    void (*bo_free) (struct ttm_buffer_object *bo))
 {
 	struct ttm_bo_device *bdev = &dev_priv->bdev;
-	struct ttm_mem_global *mem_glob = bdev->glob->mem_glob;
 	size_t acc_size;
 	int ret;
 
 	BUG_ON(!bo_free);
 
-	acc_size =
-	    vmw_dmabuf_acc_size(bdev->glob,
-				(size + PAGE_SIZE - 1) >> PAGE_SHIFT);
-
-	ret = ttm_mem_global_alloc(mem_glob, acc_size, false, false);
-	if (unlikely(ret != 0)) {
-		/* we must free the bo here as
-		 * ttm_buffer_object_init does so as well */
-		bo_free(&vmw_bo->base);
-		return ret;
-	}
-
+	acc_size = ttm_bo_acc_size(bdev, size, sizeof(struct vmw_dma_buffer));
 	memset(vmw_bo, 0, sizeof(*vmw_bo));
 
 	INIT_LIST_HEAD(&vmw_bo->validate_list);
@@ -1605,9 +1574,7 @@ int vmw_dmabuf_init(struct vmw_private *dev_priv,
 static void vmw_user_dmabuf_destroy(struct ttm_buffer_object *bo)
 {
 	struct vmw_user_dma_buffer *vmw_user_bo = vmw_user_dma_buffer(bo);
-	struct ttm_bo_global *glob = bo->glob;
 
-	ttm_mem_global_free(glob->mem_glob, bo->acc_size);
 	kfree(vmw_user_bo);
 }
 
diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 22a4a051f221..a421abdd1ab7 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -31,6 +31,11 @@ config HID
 
 	  If unsure, say Y.
 
+config HID_BATTERY_STRENGTH
+	bool
+	depends on HID && POWER_SUPPLY && HID = POWER_SUPPLY
+	default y
+
 config HIDRAW
 	bool "/dev/hidraw raw HID device support"
 	depends on HID
@@ -335,6 +340,7 @@ config HID_MULTITOUCH
 	  Say Y here if you have one of the following devices:
 	  - 3M PCT touch screens
 	  - ActionStar dual touch panels
+	  - Atmel panels
 	  - Cando dual touch panels
 	  - Chunghwa panels
 	  - CVTouch panels
@@ -349,12 +355,15 @@ config HID_MULTITOUCH
 	  - Lumio CrystalTouch panels
 	  - MosArt dual-touch panels
 	  - PenMount dual touch panels
+	  - PixArt optical touch screen
 	  - Pixcir dual touch panels
+	  - Quanta panels
 	  - eGalax dual-touch panels, including the Joojoo and Wetab tablets
 	  - Stantum multitouch panels
 	  - Touch International Panels
 	  - Unitec Panels
 	  - XAT optical touch panels
+	  - Xiroku optical touch panels
 
 	  If unsure, say N.
 
@@ -466,12 +475,6 @@ config HID_PRIMAX
 	Support for Primax devices that are not fully compliant with the
 	HID standard.
 
-config HID_QUANTA
-	tristate "Quanta Optical Touch panels"
-	depends on USB_HID
-	---help---
-	Support for Quanta Optical Touch dual-touch panels.
-
 config HID_ROCCAT
 	tristate "Roccat special event support"
 	depends on USB_HID
@@ -492,6 +495,13 @@ config HID_ROCCAT_ARVO
 	---help---
 	Support for Roccat Arvo keyboard.
 
+config HID_ROCCAT_ISKU
+	tristate "Roccat Isku keyboard support"
+	depends on USB_HID
+	depends on HID_ROCCAT
+	---help---
+	Support for Roccat Isku keyboard.
+
 config HID_ROCCAT_KONE
 	tristate "Roccat Kone Mouse support"
 	depends on USB_HID
@@ -560,6 +570,12 @@ config GREENASIA_FF
 	(like MANTA Warrior MM816 and SpeedLink Strike2 SL-6635) or adapter
 	and want to enable force feedback support for it.
 
+config HID_HYPERV_MOUSE
+	tristate "Microsoft Hyper-V mouse driver"
+	depends on HYPERV
+	---help---
+	Select this option to enable the Hyper-V mouse driver.
+
 config HID_SMARTJOYPLUS
 	tristate "SmartJoy PLUS PS2/USB adapter support"
 	depends on USB_HID
@@ -620,9 +636,19 @@ config HID_WIIMOTE
 	depends on BT_HIDP
 	depends on LEDS_CLASS
 	select POWER_SUPPLY
+	select INPUT_FF_MEMLESS
 	---help---
 	Support for the Nintendo Wii Remote bluetooth device.
 
+config HID_WIIMOTE_EXT
+	bool "Nintendo Wii Remote Extension support"
+	depends on HID_WIIMOTE
+	default HID_WIIMOTE
+	---help---
+	Support for extension controllers of the Nintendo Wii Remote. Say yes
+	here if you want to use the Nintendo Motion+, Nunchuck or Classic
+	extension controllers with your Wii Remote.
+
 config HID_ZEROPLUS
 	tristate "Zeroplus based game controller support"
 	depends on USB_HID
diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile
index 1e0d2a638b28..8aefdc963cce 100644
--- a/drivers/hid/Makefile
+++ b/drivers/hid/Makefile
@@ -25,6 +25,14 @@ ifdef CONFIG_LOGIWHEELS_FF
 	hid-logitech-y	+= hid-lg4ff.o
 endif
 
+hid-wiimote-y		:= hid-wiimote-core.o
+ifdef CONFIG_HID_WIIMOTE_EXT
+	hid-wiimote-y	+= hid-wiimote-ext.o
+endif
+ifdef CONFIG_DEBUG_FS
+	hid-wiimote-y	+= hid-wiimote-debug.o
+endif
+
 obj-$(CONFIG_HID_A4TECH)	+= hid-a4tech.o
 obj-$(CONFIG_HID_ACRUX)		+= hid-axff.o
 obj-$(CONFIG_HID_APPLE)		+= hid-apple.o
@@ -38,6 +46,7 @@ obj-$(CONFIG_HID_ELECOM)	+= hid-elecom.o
 obj-$(CONFIG_HID_EZKEY)		+= hid-ezkey.o
 obj-$(CONFIG_HID_GYRATION)	+= hid-gyration.o
 obj-$(CONFIG_HID_HOLTEK)	+= hid-holtekff.o
+obj-$(CONFIG_HID_HYPERV_MOUSE)	+= hid-hyperv.o
 obj-$(CONFIG_HID_KENSINGTON)	+= hid-kensington.o
 obj-$(CONFIG_HID_KEYTOUCH)	+= hid-keytouch.o
 obj-$(CONFIG_HID_KYE)		+= hid-kye.o
@@ -51,7 +60,6 @@ obj-$(CONFIG_HID_MULTITOUCH)	+= hid-multitouch.o
 obj-$(CONFIG_HID_NTRIG)		+= hid-ntrig.o
 obj-$(CONFIG_HID_ORTEK)		+= hid-ortek.o
 obj-$(CONFIG_HID_PRODIKEYS)	+= hid-prodikeys.o
-obj-$(CONFIG_HID_QUANTA)	+= hid-quanta.o
 obj-$(CONFIG_HID_PANTHERLORD)	+= hid-pl.o
 obj-$(CONFIG_HID_PETALYNX)	+= hid-petalynx.o
 obj-$(CONFIG_HID_PICOLCD)	+= hid-picolcd.o
@@ -59,6 +67,7 @@ obj-$(CONFIG_HID_PRIMAX)	+= hid-primax.o
 obj-$(CONFIG_HID_ROCCAT)	+= hid-roccat.o
 obj-$(CONFIG_HID_ROCCAT_COMMON)	+= hid-roccat-common.o
 obj-$(CONFIG_HID_ROCCAT_ARVO)	+= hid-roccat-arvo.o
+obj-$(CONFIG_HID_ROCCAT_ISKU)	+= hid-roccat-isku.o
 obj-$(CONFIG_HID_ROCCAT_KONE)	+= hid-roccat-kone.o
 obj-$(CONFIG_HID_ROCCAT_KONEPLUS)	+= hid-roccat-koneplus.o
 obj-$(CONFIG_HID_ROCCAT_KOVAPLUS)	+= hid-roccat-kovaplus.o
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index af353842f75f..af08ce7207d9 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -90,7 +90,7 @@ static struct hid_field *hid_register_field(struct hid_report *report, unsigned
 	struct hid_field *field;
 
 	if (report->maxfield == HID_MAX_FIELDS) {
-		dbg_hid("too many fields in report\n");
+		hid_err(report->device, "too many fields in report\n");
 		return NULL;
 	}
 
@@ -121,7 +121,7 @@ static int open_collection(struct hid_parser *parser, unsigned type)
 	usage = parser->local.usage[0];
 
 	if (parser->collection_stack_ptr == HID_COLLECTION_STACK_SIZE) {
-		dbg_hid("collection stack overflow\n");
+		hid_err(parser->device, "collection stack overflow\n");
 		return -1;
 	}
 
@@ -129,7 +129,7 @@ static int open_collection(struct hid_parser *parser, unsigned type)
 		collection = kmalloc(sizeof(struct hid_collection) *
 				parser->device->collection_size * 2, GFP_KERNEL);
 		if (collection == NULL) {
-			dbg_hid("failed to reallocate collection array\n");
+			hid_err(parser->device, "failed to reallocate collection array\n");
 			return -1;
 		}
 		memcpy(collection, parser->device->collection,
@@ -165,7 +165,7 @@ static int open_collection(struct hid_parser *parser, unsigned type)
 static int close_collection(struct hid_parser *parser)
 {
 	if (!parser->collection_stack_ptr) {
-		dbg_hid("collection stack underflow\n");
+		hid_err(parser->device, "collection stack underflow\n");
 		return -1;
 	}
 	parser->collection_stack_ptr--;
@@ -197,7 +197,7 @@ static unsigned hid_lookup_collection(struct hid_parser *parser, unsigned type)
 static int hid_add_usage(struct hid_parser *parser, unsigned usage)
 {
 	if (parser->local.usage_index >= HID_MAX_USAGES) {
-		dbg_hid("usage index exceeded\n");
+		hid_err(parser->device, "usage index exceeded\n");
 		return -1;
 	}
 	parser->local.usage[parser->local.usage_index] = usage;
@@ -222,12 +222,13 @@ static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsign
 
 	report = hid_register_report(parser->device, report_type, parser->global.report_id);
 	if (!report) {
-		dbg_hid("hid_register_report failed\n");
+		hid_err(parser->device, "hid_register_report failed\n");
 		return -1;
 	}
 
 	if (parser->global.logical_maximum < parser->global.logical_minimum) {
-		dbg_hid("logical range invalid %d %d\n", parser->global.logical_minimum, parser->global.logical_maximum);
+		hid_err(parser->device, "logical range invalid %d %d\n",
+				parser->global.logical_minimum, parser->global.logical_maximum);
 		return -1;
 	}
 
@@ -307,7 +308,7 @@ static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
 	case HID_GLOBAL_ITEM_TAG_PUSH:
 
 		if (parser->global_stack_ptr == HID_GLOBAL_STACK_SIZE) {
-			dbg_hid("global environment stack overflow\n");
+			hid_err(parser->device, "global environment stack overflow\n");
 			return -1;
 		}
 
@@ -318,7 +319,7 @@ static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
 	case HID_GLOBAL_ITEM_TAG_POP:
 
 		if (!parser->global_stack_ptr) {
-			dbg_hid("global environment stack underflow\n");
+			hid_err(parser->device, "global environment stack underflow\n");
 			return -1;
 		}
 
@@ -362,8 +363,8 @@ static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
 
 	case HID_GLOBAL_ITEM_TAG_REPORT_SIZE:
 		parser->global.report_size = item_udata(item);
-		if (parser->global.report_size > 32) {
-			dbg_hid("invalid report_size %d\n",
+		if (parser->global.report_size > 96) {
+			hid_err(parser->device, "invalid report_size %d\n",
 					parser->global.report_size);
 			return -1;
 		}
@@ -372,7 +373,7 @@ static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
 	case HID_GLOBAL_ITEM_TAG_REPORT_COUNT:
 		parser->global.report_count = item_udata(item);
 		if (parser->global.report_count > HID_MAX_USAGES) {
-			dbg_hid("invalid report_count %d\n",
+			hid_err(parser->device, "invalid report_count %d\n",
 					parser->global.report_count);
 			return -1;
 		}
@@ -381,13 +382,13 @@ static int hid_parser_global(struct hid_parser *parser, struct hid_item *item)
 	case HID_GLOBAL_ITEM_TAG_REPORT_ID:
 		parser->global.report_id = item_udata(item);
 		if (parser->global.report_id == 0) {
-			dbg_hid("report_id 0 is invalid\n");
+			hid_err(parser->device, "report_id 0 is invalid\n");
 			return -1;
 		}
 		return 0;
 
 	default:
-		dbg_hid("unknown global tag 0x%x\n", item->tag);
+		hid_err(parser->device, "unknown global tag 0x%x\n", item->tag);
 		return -1;
 	}
 }
@@ -414,14 +415,14 @@ static int hid_parser_local(struct hid_parser *parser, struct hid_item *item)
 			 * items and the first delimiter set.
 			 */
 			if (parser->local.delimiter_depth != 0) {
-				dbg_hid("nested delimiters\n");
+				hid_err(parser->device, "nested delimiters\n");
 				return -1;
 			}
 			parser->local.delimiter_depth++;
 			parser->local.delimiter_branch++;
 		} else {
 			if (parser->local.delimiter_depth < 1) {
-				dbg_hid("bogus close delimiter\n");
+				hid_err(parser->device, "bogus close delimiter\n");
 				return -1;
 			}
 			parser->local.delimiter_depth--;
@@ -506,7 +507,7 @@ static int hid_parser_main(struct hid_parser *parser, struct hid_item *item)
 		ret = hid_add_field(parser, HID_FEATURE_REPORT, data);
 		break;
 	default:
-		dbg_hid("unknown main item tag 0x%x\n", item->tag);
+		hid_err(parser->device, "unknown main item tag 0x%x\n", item->tag);
 		ret = 0;
 	}
 
@@ -678,12 +679,12 @@ int hid_parse_report(struct hid_device *device, __u8 *start,
 	while ((start = fetch_item(start, end, &item)) != NULL) {
 
 		if (item.format != HID_ITEM_FORMAT_SHORT) {
-			dbg_hid("unexpected long global item\n");
+			hid_err(device, "unexpected long global item\n");
 			goto err;
 		}
 
 		if (dispatch_type[item.type](parser, &item)) {
-			dbg_hid("item %u %u %u %u parsing failed\n",
+			hid_err(device, "item %u %u %u %u parsing failed\n",
 				item.format, (unsigned)item.size,
 				(unsigned)item.type, (unsigned)item.tag);
 			goto err;
@@ -691,11 +692,11 @@ int hid_parse_report(struct hid_device *device, __u8 *start,
 
 		if (start == end) {
 			if (parser->collection_stack_ptr) {
-				dbg_hid("unbalanced collection at end of report description\n");
+				hid_err(device, "unbalanced collection at end of report description\n");
 				goto err;
 			}
 			if (parser->local.delimiter_depth) {
-				dbg_hid("unbalanced delimiter at end of report description\n");
+				hid_err(device, "unbalanced delimiter at end of report description\n");
 				goto err;
 			}
 			vfree(parser);
@@ -703,7 +704,7 @@ int hid_parse_report(struct hid_device *device, __u8 *start,
 		}
 	}
 
-	dbg_hid("item fetching failed at offset %d\n", (int)(end - start));
+	hid_err(device, "item fetching failed at offset %d\n", (int)(end - start));
 err:
 	vfree(parser);
 	return ret;
@@ -873,7 +874,7 @@ static void hid_process_event(struct hid_device *hid, struct hid_field *field,
 		ret = hdrv->event(hid, field, usage, value);
 		if (ret != 0) {
 			if (ret < 0)
-				dbg_hid("%s's event failed with %d\n",
+				hid_err(hid, "%s's event failed with %d\n",
 						hdrv->name, ret);
 			return;
 		}
@@ -995,12 +996,13 @@ int hid_set_field(struct hid_field *field, unsigned offset, __s32 value)
 	hid_dump_input(field->report->device, field->usage + offset, value);
 
 	if (offset >= field->report_count) {
-		dbg_hid("offset (%d) exceeds report_count (%d)\n", offset, field->report_count);
+		hid_err(field->report->device, "offset (%d) exceeds report_count (%d)\n",
+				offset, field->report_count);
 		return -1;
 	}
 	if (field->logical_minimum < 0) {
 		if (value != snto32(s32ton(value, size), size)) {
-			dbg_hid("value %d is out of range\n", value);
+			hid_err(field->report->device, "value %d is out of range\n", value);
 			return -1;
 		}
 	}
@@ -1157,7 +1159,7 @@ static bool hid_match_one_id(struct hid_device *hdev,
 		(id->product == HID_ANY_ID || id->product == hdev->product);
 }
 
-static const struct hid_device_id *hid_match_id(struct hid_device *hdev,
+const struct hid_device_id *hid_match_id(struct hid_device *hdev,
 		const struct hid_device_id *id)
 {
 	for (; id->bus; id++)
@@ -1404,11 +1406,13 @@ static const struct hid_device_id hid_have_special_driver[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_TRUETOUCH) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0011) },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH) },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH1) },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH2) },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH3) },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH4) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) },
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2515) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_EMS, USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II) },
@@ -1423,6 +1427,7 @@ static const struct hid_device_id hid_have_special_driver[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_2) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_GYRATION, USB_DEVICE_ID_GYRATION_REMOTE_3) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_HANVON, USB_DEVICE_ID_HANVON_MULTITOUCH) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT, USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) },
  	{ HID_USB_DEVICE(USB_VENDOR_ID_IDEACOM, USB_DEVICE_ID_IDEACOM_IDC6650) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_HOLTEK, USB_DEVICE_ID_HOLTEK_ON_LINE_GRIP) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ILITEK, USB_DEVICE_ID_ILITEK_MULTITOUCH) },
@@ -1498,11 +1503,15 @@ static const struct hid_device_id hid_have_special_driver[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ORTEK, USB_DEVICE_ID_ORTEK_WKB2000) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_PENMOUNT, USB_DEVICE_ID_PENMOUNT_PCI) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_PETALYNX, USB_DEVICE_ID_PETALYNX_MAXTER_REMOTE) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_PRIMAX, USB_DEVICE_ID_PRIMAX_KEYBOARD) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONE) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ARVO) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKU) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KONEPLUS) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_KOVAPLUS) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_PYRA_WIRED) },
@@ -1544,11 +1553,21 @@ static const struct hid_device_id hid_have_special_driver[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_DUAL_BOX_PRO) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_WISEGROUP_LTD, USB_DEVICE_ID_SUPER_JOY_BOX_5_PRO) },
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) },
+	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_SLIM_TABLET_12_1_INCH) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_WALTOP, USB_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_XAT, USB_DEVICE_ID_XAT_CSR) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_XIROKU, USB_DEVICE_ID_XIROKU_SPX) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_XIROKU, USB_DEVICE_ID_XIROKU_MPX) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_XIROKU, USB_DEVICE_ID_XIROKU_CSR) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_XIROKU, USB_DEVICE_ID_XIROKU_SPX1) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_XIROKU, USB_DEVICE_ID_XIROKU_MPX1) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_XIROKU, USB_DEVICE_ID_XIROKU_CSR1) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_XIROKU, USB_DEVICE_ID_XIROKU_SPX2) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_XIROKU, USB_DEVICE_ID_XIROKU_MPX2) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_XIROKU, USB_DEVICE_ID_XIROKU_CSR2) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_X_TENSIONS, USB_DEVICE_ID_SPEEDLINK_VAD_CEZANNE) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0005) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ZEROPLUS, 0x0030) },
@@ -1768,6 +1787,7 @@ static const struct hid_device_id hid_ignore_list[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EARTHMATE) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_DELORME, USB_DEVICE_ID_DELORME_EM_LT20) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x0004) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_DREAM_CHEEKY, 0x000a) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ESSENTIAL_REALITY, USB_DEVICE_ID_ESSENTIAL_REALITY_P5) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC5UH) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_ETT, USB_DEVICE_ID_TC4UM) },
diff --git a/drivers/hid/hid-debug.c b/drivers/hid/hid-debug.c
index ee80d733801d..01dd9a7daf7a 100644
--- a/drivers/hid/hid-debug.c
+++ b/drivers/hid/hid-debug.c
@@ -114,6 +114,14 @@ static const struct hid_usage_entry hid_usage_table[] = {
       {0, 0xbd, "FlareRelease"},
       {0, 0xbe, "LandingGear"},
       {0, 0xbf, "ToeBrake"},
+  {  6, 0, "GenericDeviceControls" },
+      {0, 0x20, "BatteryStrength" },
+      {0, 0x21, "WirelessChannel" },
+      {0, 0x22, "WirelessID" },
+      {0, 0x23, "DiscoverWirelessControl" },
+      {0, 0x24, "SecurityCodeCharacterEntered" },
+      {0, 0x25, "SecurityCodeCharactedErased" },
+      {0, 0x26, "SecurityCodeCleared" },
   {  7, 0, "Keyboard" },
   {  8, 0, "LED" },
       {0, 0x01, "NumLock"},
diff --git a/drivers/hid/hid-emsff.c b/drivers/hid/hid-emsff.c
index 9bdde867a02f..2630d483d262 100644
--- a/drivers/hid/hid-emsff.c
+++ b/drivers/hid/hid-emsff.c
@@ -140,7 +140,7 @@ err:
 }
 
 static const struct hid_device_id ems_devices[] = {
-	{ HID_USB_DEVICE(USB_VENDOR_ID_EMS, 0x118) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_EMS, USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II) },
 	{ }
 };
 MODULE_DEVICE_TABLE(hid, ems_devices);
diff --git a/drivers/staging/hv/hv_mouse.c b/drivers/hid/hid-hyperv.c
index ccd39c70c527..0c33ae9cf0f0 100644
--- a/drivers/staging/hv/hv_mouse.c
+++ b/drivers/hid/hid-hyperv.c
@@ -14,11 +14,8 @@
  */
 #include <linux/init.h>
 #include <linux/module.h>
-#include <linux/delay.h>
 #include <linux/device.h>
-#include <linux/workqueue.h>
-#include <linux/sched.h>
-#include <linux/wait.h>
+#include <linux/completion.h>
 #include <linux/input.h>
 #include <linux/hid.h>
 #include <linux/hiddev.h>
@@ -118,7 +115,6 @@ struct synthhid_input_report {
 #define INPUTVSC_SEND_RING_BUFFER_SIZE		(10*PAGE_SIZE)
 #define INPUTVSC_RECV_RING_BUFFER_SIZE		(10*PAGE_SIZE)
 
-#define NBITS(x) (((x)/BITS_PER_LONG)+1)
 
 enum pipe_prot_msg_type {
 	PIPE_MESSAGE_INVALID,
@@ -148,7 +144,8 @@ struct  mousevsc_prt_msg {
  */
 struct mousevsc_dev {
 	struct hv_device	*device;
-	unsigned char		init_complete;
+	bool			init_complete;
+	bool			connected;
 	struct mousevsc_prt_msg	protocol_req;
 	struct mousevsc_prt_msg	protocol_resp;
 	/* Synchronize the request/response if needed */
@@ -159,12 +156,11 @@ struct mousevsc_dev {
 	unsigned char		*report_desc;
 	u32			report_desc_size;
 	struct hv_input_dev_info hid_dev_info;
-	int			connected;
 	struct hid_device       *hid_device;
 };
 
 
-static struct mousevsc_dev *alloc_input_device(struct hv_device *device)
+static struct mousevsc_dev *mousevsc_alloc_device(struct hv_device *device)
 {
 	struct mousevsc_dev *input_dev;
 
@@ -176,11 +172,12 @@ static struct mousevsc_dev *alloc_input_device(struct hv_device *device)
 	input_dev->device = device;
 	hv_set_drvdata(device, input_dev);
 	init_completion(&input_dev->wait_event);
+	input_dev->init_complete = false;
 
 	return input_dev;
 }
 
-static void free_input_device(struct mousevsc_dev *device)
+static void mousevsc_free_device(struct mousevsc_dev *device)
 {
 	kfree(device->hid_desc);
 	kfree(device->report_desc);
@@ -188,7 +185,6 @@ static void free_input_device(struct mousevsc_dev *device)
 	kfree(device);
 }
 
-
 static void mousevsc_on_receive_device_info(struct mousevsc_dev *input_device,
 				struct synthhid_device_info *device_info)
 {
@@ -196,14 +192,12 @@ static void mousevsc_on_receive_device_info(struct mousevsc_dev *input_device,
 	struct hid_descriptor *desc;
 	struct mousevsc_prt_msg ack;
 
-	/* Assume success for now */
-	input_device->dev_info_status = 0;
-
-	memcpy(&input_device->hid_dev_info, &device_info->hid_dev_info,
-		sizeof(struct hv_input_dev_info));
+	input_device->dev_info_status = -ENOMEM;
 
+	input_device->hid_dev_info = device_info->hid_dev_info;
 	desc = &device_info->hid_descriptor;
-	WARN_ON(desc->bLength == 0);
+	if (desc->bLength == 0)
+		goto cleanup;
 
 	input_device->hid_desc = kzalloc(desc->bLength, GFP_ATOMIC);
 
@@ -213,13 +207,18 @@ static void mousevsc_on_receive_device_info(struct mousevsc_dev *input_device,
 	memcpy(input_device->hid_desc, desc, desc->bLength);
 
 	input_device->report_desc_size = desc->desc[0].wDescriptorLength;
-	if (input_device->report_desc_size == 0)
+	if (input_device->report_desc_size == 0) {
+		input_device->dev_info_status = -EINVAL;
 		goto cleanup;
+	}
+
 	input_device->report_desc = kzalloc(input_device->report_desc_size,
 					  GFP_ATOMIC);
 
-	if (!input_device->report_desc)
+	if (!input_device->report_desc) {
+		input_device->dev_info_status = -ENOMEM;
 		goto cleanup;
+	}
 
 	memcpy(input_device->report_desc,
 	       ((unsigned char *)desc) + desc->bLength,
@@ -242,22 +241,14 @@ static void mousevsc_on_receive_device_info(struct mousevsc_dev *input_device,
 			(unsigned long)&ack,
 			VM_PKT_DATA_INBAND,
 			VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
-	if (ret != 0)
-		goto cleanup;
-
-	complete(&input_device->wait_event);
 
-	return;
+	if (!ret)
+		input_device->dev_info_status = 0;
 
 cleanup:
-	kfree(input_device->hid_desc);
-	input_device->hid_desc = NULL;
-
-	kfree(input_device->report_desc);
-	input_device->report_desc = NULL;
-
-	input_device->dev_info_status = -1;
 	complete(&input_device->wait_event);
+
+	return;
 }
 
 static void mousevsc_on_receive(struct hv_device *device,
@@ -274,10 +265,22 @@ static void mousevsc_on_receive(struct hv_device *device,
 	if (pipe_msg->type != PIPE_MESSAGE_DATA)
 		return;
 
-	hid_msg = (struct synthhid_msg *)&pipe_msg->data[0];
+	hid_msg = (struct synthhid_msg *)pipe_msg->data;
 
 	switch (hid_msg->header.type) {
 	case SYNTH_HID_PROTOCOL_RESPONSE:
+		/*
+		 * While it will be impossible for us to protect against
+		 * malicious/buggy hypervisor/host, add a check here to
+		 * ensure we don't corrupt memory.
+		 */
+		if ((pipe_msg->size + sizeof(struct pipe_prt_msg)
+			- sizeof(unsigned char))
+			> sizeof(struct mousevsc_prt_msg)) {
+			WARN_ON(1);
+			break;
+		}
+
 		memcpy(&input_dev->protocol_resp, pipe_msg,
 		       pipe_msg->size + sizeof(struct pipe_prt_msg) -
 		       sizeof(unsigned char));
@@ -292,11 +295,11 @@ static void mousevsc_on_receive(struct hv_device *device,
 		 * hid desc and report desc
 		 */
 		mousevsc_on_receive_device_info(input_dev,
-			(struct synthhid_device_info *)&pipe_msg->data[0]);
+			(struct synthhid_device_info *)pipe_msg->data);
 		break;
 	case SYNTH_HID_INPUT_REPORT:
 		input_report =
-			(struct synthhid_input_report *)&pipe_msg->data[0];
+			(struct synthhid_input_report *)pipe_msg->data;
 		if (!input_dev->init_complete)
 			break;
 		hid_input_report(input_dev->hid_device,
@@ -313,73 +316,60 @@ static void mousevsc_on_receive(struct hv_device *device,
 
 static void mousevsc_on_channel_callback(void *context)
 {
-	const int packetSize = 0x100;
-	int ret = 0;
-	struct hv_device *device = (struct hv_device *)context;
-
+	const int packet_size = 0x100;
+	int ret;
+	struct hv_device *device = context;
 	u32 bytes_recvd;
 	u64 req_id;
-	unsigned char packet[0x100];
 	struct vmpacket_descriptor *desc;
-	unsigned char	*buffer = packet;
-	int	bufferlen = packetSize;
+	unsigned char	*buffer;
+	int	bufferlen = packet_size;
 
+	buffer = kmalloc(bufferlen, GFP_ATOMIC);
+	if (!buffer)
+		return;
 
 	do {
 		ret = vmbus_recvpacket_raw(device->channel, buffer,
 					bufferlen, &bytes_recvd, &req_id);
 
-		if (ret == 0) {
-			if (bytes_recvd > 0) {
-				desc = (struct vmpacket_descriptor *)buffer;
-
-				switch (desc->type) {
-				case VM_PKT_COMP:
-					break;
-
-				case VM_PKT_DATA_INBAND:
-					mousevsc_on_receive(
-						device, desc);
-					break;
-
-				default:
-					pr_err("unhandled packet type %d, tid %llx len %d\n",
-						   desc->type,
-						   req_id,
-						   bytes_recvd);
-					break;
-				}
-
-				/* reset */
-				if (bufferlen > packetSize) {
-					kfree(buffer);
-
-					buffer = packet;
-					bufferlen = packetSize;
-				}
-			} else {
-				if (bufferlen > packetSize) {
-					kfree(buffer);
-
-					buffer = packet;
-					bufferlen = packetSize;
-				}
+		switch (ret) {
+		case 0:
+			if (bytes_recvd <= 0) {
+				kfree(buffer);
+				return;
+			}
+			desc = (struct vmpacket_descriptor *)buffer;
+
+			switch (desc->type) {
+			case VM_PKT_COMP:
+				break;
+
+			case VM_PKT_DATA_INBAND:
+				mousevsc_on_receive(device, desc);
+				break;
+
+			default:
+				pr_err("unhandled packet type %d, tid %llx len %d\n",
+					desc->type, req_id, bytes_recvd);
 				break;
 			}
-		} else if (ret == -ENOBUFS) {
+
+			break;
+
+		case -ENOBUFS:
+			kfree(buffer);
 			/* Handle large packet */
 			bufferlen = bytes_recvd;
-			buffer = kzalloc(bytes_recvd, GFP_ATOMIC);
+			buffer = kmalloc(bytes_recvd, GFP_ATOMIC);
 
-			if (buffer == NULL) {
-				buffer = packet;
-				bufferlen = packetSize;
-				break;
-			}
+			if (!buffer)
+				return;
+
+			break;
 		}
 	} while (1);
 
-	return;
 }
 
 static int mousevsc_connect_to_vsp(struct hv_device *device)
@@ -390,19 +380,15 @@ static int mousevsc_connect_to_vsp(struct hv_device *device)
 	struct mousevsc_prt_msg *request;
 	struct mousevsc_prt_msg *response;
 
-
 	request = &input_dev->protocol_req;
-
 	memset(request, 0, sizeof(struct mousevsc_prt_msg));
 
 	request->type = PIPE_MESSAGE_DATA;
 	request->size = sizeof(struct synthhid_protocol_request);
-
 	request->request.header.type = SYNTH_HID_PROTOCOL_REQUEST;
 	request->request.header.size = sizeof(unsigned int);
 	request->request.version_requested.version = SYNTHHID_INPUT_VERSION;
 
-
 	ret = vmbus_sendpacket(device->channel, request,
 				sizeof(struct pipe_prt_msg) -
 				sizeof(unsigned char) +
@@ -410,11 +396,11 @@ static int mousevsc_connect_to_vsp(struct hv_device *device)
 				(unsigned long)request,
 				VM_PKT_DATA_INBAND,
 				VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
-	if (ret != 0)
+	if (ret)
 		goto cleanup;
 
 	t = wait_for_completion_timeout(&input_dev->wait_event, 5*HZ);
-	if (t == 0) {
+	if (!t) {
 		ret = -ETIMEDOUT;
 		goto cleanup;
 	}
@@ -422,14 +408,14 @@ static int mousevsc_connect_to_vsp(struct hv_device *device)
 	response = &input_dev->protocol_resp;
 
 	if (!response->response.approved) {
-		pr_err("synthhid protocol request failed (version %d)",
+		pr_err("synthhid protocol request failed (version %d)\n",
 		       SYNTHHID_INPUT_VERSION);
 		ret = -ENODEV;
 		goto cleanup;
 	}
 
 	t = wait_for_completion_timeout(&input_dev->wait_event, 5*HZ);
-	if (t == 0) {
+	if (!t) {
 		ret = -ETIMEDOUT;
 		goto cleanup;
 	}
@@ -438,11 +424,9 @@ static int mousevsc_connect_to_vsp(struct hv_device *device)
 	 * We should have gotten the device attr, hid desc and report
 	 * desc at this point
 	 */
-	if (input_dev->dev_info_status)
-		ret = -ENOMEM;
+	ret = input_dev->dev_info_status;
 
 cleanup:
-
 	return ret;
 }
 
@@ -451,61 +435,40 @@ static int mousevsc_hid_open(struct hid_device *hid)
 	return 0;
 }
 
+static int mousevsc_hid_start(struct hid_device *hid)
+{
+	return 0;
+}
+
 static void mousevsc_hid_close(struct hid_device *hid)
 {
 }
 
+static void mousevsc_hid_stop(struct hid_device *hid)
+{
+}
+
 static struct hid_ll_driver mousevsc_ll_driver = {
 	.open = mousevsc_hid_open,
 	.close = mousevsc_hid_close,
+	.start = mousevsc_hid_start,
+	.stop = mousevsc_hid_stop,
 };
 
 static struct hid_driver mousevsc_hid_driver;
 
-static void reportdesc_callback(struct hv_device *dev, void *packet, u32 len)
-{
-	struct hid_device *hid_dev;
-	struct mousevsc_dev *input_device = hv_get_drvdata(dev);
-
-	hid_dev = hid_allocate_device();
-	if (IS_ERR(hid_dev))
-		return;
-
-	hid_dev->ll_driver = &mousevsc_ll_driver;
-	hid_dev->driver = &mousevsc_hid_driver;
-
-	if (hid_parse_report(hid_dev, packet, len))
-		return;
-
-	hid_dev->bus = BUS_VIRTUAL;
-	hid_dev->vendor = input_device->hid_dev_info.vendor;
-	hid_dev->product = input_device->hid_dev_info.product;
-	hid_dev->version = input_device->hid_dev_info.version;
-
-	sprintf(hid_dev->name, "%s", "Microsoft Vmbus HID-compliant Mouse");
-
-	if (!hidinput_connect(hid_dev, 0)) {
-		hid_dev->claimed |= HID_CLAIMED_INPUT;
-
-		input_device->connected = 1;
-
-	}
-
-	input_device->hid_device = hid_dev;
-}
-
-static int mousevsc_on_device_add(struct hv_device *device)
+static int mousevsc_probe(struct hv_device *device,
+			const struct hv_vmbus_device_id *dev_id)
 {
-	int ret = 0;
+	int ret;
 	struct mousevsc_dev *input_dev;
+	struct hid_device *hid_dev;
 
-	input_dev = alloc_input_device(device);
+	input_dev = mousevsc_alloc_device(device);
 
 	if (!input_dev)
 		return -ENOMEM;
 
-	input_dev->init_complete = false;
-
 	ret = vmbus_open(device->channel,
 		INPUTVSC_SEND_RING_BUFFER_SIZE,
 		INPUTVSC_RECV_RING_BUFFER_SIZE,
@@ -515,54 +478,78 @@ static int mousevsc_on_device_add(struct hv_device *device)
 		device
 		);
 
-	if (ret != 0) {
-		free_input_device(input_dev);
-		return ret;
-	}
-
+	if (ret)
+		goto probe_err0;
 
 	ret = mousevsc_connect_to_vsp(device);
 
-	if (ret != 0) {
-		vmbus_close(device->channel);
-		free_input_device(input_dev);
-		return ret;
-	}
-
+	if (ret)
+		goto probe_err1;
 
 	/* workaround SA-167 */
 	if (input_dev->report_desc[14] == 0x25)
 		input_dev->report_desc[14] = 0x29;
 
-	reportdesc_callback(device, input_dev->report_desc,
-			    input_dev->report_desc_size);
+	hid_dev = hid_allocate_device();
+	if (IS_ERR(hid_dev)) {
+		ret = PTR_ERR(hid_dev);
+		goto probe_err1;
+	}
+
+	hid_dev->ll_driver = &mousevsc_ll_driver;
+	hid_dev->driver = &mousevsc_hid_driver;
+	hid_dev->bus = BUS_VIRTUAL;
+	hid_dev->vendor = input_dev->hid_dev_info.vendor;
+	hid_dev->product = input_dev->hid_dev_info.product;
+	hid_dev->version = input_dev->hid_dev_info.version;
+	input_dev->hid_device = hid_dev;
+
+	sprintf(hid_dev->name, "%s", "Microsoft Vmbus HID-compliant Mouse");
+
+	ret = hid_add_device(hid_dev);
+	if (ret)
+		goto probe_err1;
+
+	ret = hid_parse_report(hid_dev, input_dev->report_desc,
+				input_dev->report_desc_size);
+
+	if (ret) {
+		hid_err(hid_dev, "parse failed\n");
+		goto probe_err2;
+	}
 
+	ret = hid_hw_start(hid_dev, HID_CONNECT_HIDINPUT | HID_CONNECT_HIDDEV);
+
+	if (ret) {
+		hid_err(hid_dev, "hw start failed\n");
+		goto probe_err2;
+	}
+
+	input_dev->connected = true;
 	input_dev->init_complete = true;
 
 	return ret;
-}
 
-static int mousevsc_probe(struct hv_device *dev,
-			const struct hv_vmbus_device_id *dev_id)
-{
+probe_err2:
+	hid_destroy_device(hid_dev);
 
-	return mousevsc_on_device_add(dev);
+probe_err1:
+	vmbus_close(device->channel);
 
+probe_err0:
+	mousevsc_free_device(input_dev);
+
+	return ret;
 }
 
+
 static int mousevsc_remove(struct hv_device *dev)
 {
 	struct mousevsc_dev *input_dev = hv_get_drvdata(dev);
 
 	vmbus_close(dev->channel);
-
-	if (input_dev->connected) {
-		hidinput_disconnect(input_dev->hid_device);
-		input_dev->connected = 0;
-		hid_destroy_device(input_dev->hid_device);
-	}
-
-	free_input_device(input_dev);
+	hid_destroy_device(input_dev->hid_device);
+	mousevsc_free_device(input_dev);
 
 	return 0;
 }
@@ -577,7 +564,7 @@ static const struct hv_vmbus_device_id id_table[] = {
 MODULE_DEVICE_TABLE(vmbus, id_table);
 
 static struct  hv_driver mousevsc_drv = {
-	.name = "mousevsc",
+	.name = KBUILD_MODNAME,
 	.id_table = id_table,
 	.probe = mousevsc_probe,
 	.remove = mousevsc_remove,
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 4a441a6f9967..b8574cddd953 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -21,6 +21,7 @@
 #define USB_VENDOR_ID_3M		0x0596
 #define USB_DEVICE_ID_3M1968		0x0500
 #define USB_DEVICE_ID_3M2256		0x0502
+#define USB_DEVICE_ID_3M3266		0x0506
 
 #define USB_VENDOR_ID_A4TECH		0x09da
 #define USB_DEVICE_ID_A4TECH_WCP32PU	0x0006
@@ -124,6 +125,7 @@
 #define USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI  0x0239
 #define USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO   0x023a
 #define USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_JIS   0x023b
+#define USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI  0x0255
 #define USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO   0x0256
 #define USB_DEVICE_ID_APPLE_FOUNTAIN_TP_ONLY	0x030a
 #define USB_DEVICE_ID_APPLE_GEYSER1_TP_ONLY	0x030b
@@ -145,6 +147,9 @@
 #define USB_DEVICE_ID_ATEN_4PORTKVM	0x2205
 #define USB_DEVICE_ID_ATEN_4PORTKVMC	0x2208
 
+#define USB_VENDOR_ID_ATMEL		0x03eb
+#define USB_DEVICE_ID_ATMEL_MULTITOUCH	0x211c
+
 #define USB_VENDOR_ID_AVERMEDIA		0x07ca
 #define USB_DEVICE_ID_AVER_FM_MR800	0xb800
 
@@ -230,11 +235,14 @@
 
 #define USB_VENDOR_ID_DWAV		0x0eef
 #define USB_DEVICE_ID_EGALAX_TOUCHCONTROLLER	0x0001
-#define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH	0x480d
-#define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH1	0x720c
-#define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH2	0x72a1
-#define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH3	0x480e
-#define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH4	0x726b
+#define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D	0x480d
+#define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E	0x480e
+#define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C	0x720c
+#define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B	0x726b
+#define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1	0x72a1
+#define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA	0x72fa
+#define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302	0x7302
+#define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001	0xa001
 
 #define USB_VENDOR_ID_ELECOM		0x056e
 #define USB_DEVICE_ID_ELECOM_BM084	0x0061
@@ -356,6 +364,9 @@
 #define USB_VENDOR_ID_HANVON		0x20b3
 #define USB_DEVICE_ID_HANVON_MULTITOUCH	0x0a18
 
+#define USB_VENDOR_ID_HANVON_ALT	0x22ed
+#define USB_DEVICE_ID_HANVON_ALT_MULTITOUCH	0x1010
+
 #define USB_VENDOR_ID_HAPP		0x078b
 #define USB_DEVICE_ID_UGCI_DRIVING	0x0010
 #define USB_DEVICE_ID_UGCI_FLYING	0x0020
@@ -571,6 +582,11 @@
 #define USB_VENDOR_ID_PI_ENGINEERING	0x05f3
 #define USB_DEVICE_ID_PI_ENGINEERING_VEC_USB_FOOTPEDAL	0xff
 
+#define USB_VENDOR_ID_PIXART				0x093a
+#define USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN	0x8001
+#define USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1	0x8002
+#define USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2	0x8003
+
 #define USB_VENDOR_ID_PLAYDOTCOM	0x0b43
 #define USB_DEVICE_ID_PLAYDOTCOM_EMS_USBII	0x0003
 
@@ -581,11 +597,14 @@
 #define USB_DEVICE_ID_PRODIGE_CORDLESS	0x3062
 
 #define USB_VENDOR_ID_QUANTA		0x0408
-#define USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH	0x3000
+#define USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH		0x3000
+#define USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001		0x3001
+#define USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008		0x3008
 #define USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN	0x3001
 
 #define USB_VENDOR_ID_ROCCAT		0x1e7d
 #define USB_DEVICE_ID_ROCCAT_ARVO	0x30d4
+#define USB_DEVICE_ID_ROCCAT_ISKU	0x319c
 #define USB_DEVICE_ID_ROCCAT_KONE	0x2ced
 #define USB_DEVICE_ID_ROCCAT_KONEPLUS	0x2d51
 #define USB_DEVICE_ID_ROCCAT_KOVAPLUS	0x2d50
@@ -679,6 +698,7 @@
 
 #define USB_VENDOR_ID_WACOM		0x056a
 #define USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH	0x81
+#define USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH   0x00BD
 
 #define USB_VENDOR_ID_WALTOP				0x172f
 #define USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH	0x0032
@@ -707,6 +727,17 @@
 #define USB_VENDOR_ID_XAT	0x2505
 #define USB_DEVICE_ID_XAT_CSR	0x0220
 
+#define USB_VENDOR_ID_XIROKU		0x1477
+#define USB_DEVICE_ID_XIROKU_SPX	0x1006
+#define USB_DEVICE_ID_XIROKU_MPX	0x1007
+#define USB_DEVICE_ID_XIROKU_CSR	0x100e
+#define USB_DEVICE_ID_XIROKU_SPX1	0x1021
+#define USB_DEVICE_ID_XIROKU_CSR1	0x1022
+#define USB_DEVICE_ID_XIROKU_MPX1	0x1023
+#define USB_DEVICE_ID_XIROKU_SPX2	0x1024
+#define USB_DEVICE_ID_XIROKU_CSR2	0x1025
+#define USB_DEVICE_ID_XIROKU_MPX2	0x1026
+
 #define USB_VENDOR_ID_YEALINK		0x6993
 #define USB_DEVICE_ID_YEALINK_P1K_P4K_B2K	0xb001
 
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index f333139d1a48..9333d692a786 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -32,6 +32,8 @@
 #include <linux/hid.h>
 #include <linux/hid-debug.h>
 
+#include "hid-ids.h"
+
 #define unk	KEY_UNKNOWN
 
 static const unsigned char hid_keyboard[256] = {
@@ -271,6 +273,161 @@ static __s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code)
 	return logical_extents / physical_extents;
 }
 
+#ifdef CONFIG_HID_BATTERY_STRENGTH
+static enum power_supply_property hidinput_battery_props[] = {
+	POWER_SUPPLY_PROP_PRESENT,
+	POWER_SUPPLY_PROP_ONLINE,
+	POWER_SUPPLY_PROP_CAPACITY,
+	POWER_SUPPLY_PROP_MODEL_NAME,
+	POWER_SUPPLY_PROP_STATUS
+};
+
+#define HID_BATTERY_QUIRK_PERCENT	(1 << 0) /* always reports percent */
+#define HID_BATTERY_QUIRK_FEATURE	(1 << 1) /* ask for feature report */
+
+static const struct hid_device_id hid_battery_quirks[] = {
+	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
+			       USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI),
+	  HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
+	{}
+};
+
+static unsigned find_battery_quirk(struct hid_device *hdev)
+{
+	unsigned quirks = 0;
+	const struct hid_device_id *match;
+
+	match = hid_match_id(hdev, hid_battery_quirks);
+	if (match != NULL)
+		quirks = match->driver_data;
+
+	return quirks;
+}
+
+static int hidinput_get_battery_property(struct power_supply *psy,
+					 enum power_supply_property prop,
+					 union power_supply_propval *val)
+{
+	struct hid_device *dev = container_of(psy, struct hid_device, battery);
+	int ret = 0;
+	__u8 buf[2] = {};
+
+	switch (prop) {
+	case POWER_SUPPLY_PROP_PRESENT:
+	case POWER_SUPPLY_PROP_ONLINE:
+		val->intval = 1;
+		break;
+
+	case POWER_SUPPLY_PROP_CAPACITY:
+		ret = dev->hid_get_raw_report(dev, dev->battery_report_id,
+					      buf, sizeof(buf),
+					      dev->battery_report_type);
+
+		if (ret != 2) {
+			if (ret >= 0)
+				ret = -EINVAL;
+			break;
+		}
+
+		if (dev->battery_min < dev->battery_max &&
+		    buf[1] >= dev->battery_min &&
+		    buf[1] <= dev->battery_max)
+			val->intval = (100 * (buf[1] - dev->battery_min)) /
+				(dev->battery_max - dev->battery_min);
+		break;
+
+	case POWER_SUPPLY_PROP_MODEL_NAME:
+		val->strval = dev->name;
+		break;
+
+	case POWER_SUPPLY_PROP_STATUS:
+		val->intval = POWER_SUPPLY_STATUS_DISCHARGING;
+		break;
+
+	default:
+		ret = -EINVAL;
+		break;
+	}
+
+	return ret;
+}
+
+static bool hidinput_setup_battery(struct hid_device *dev, unsigned report_type, struct hid_field *field)
+{
+	struct power_supply *battery = &dev->battery;
+	int ret;
+	unsigned quirks;
+	s32 min, max;
+
+	if (field->usage->hid != HID_DC_BATTERYSTRENGTH)
+		return false;	/* no match */
+
+	if (battery->name != NULL)
+		goto out;	/* already initialized? */
+
+	battery->name = kasprintf(GFP_KERNEL, "hid-%s-battery", dev->uniq);
+	if (battery->name == NULL)
+		goto out;
+
+	battery->type = POWER_SUPPLY_TYPE_BATTERY;
+	battery->properties = hidinput_battery_props;
+	battery->num_properties = ARRAY_SIZE(hidinput_battery_props);
+	battery->use_for_apm = 0;
+	battery->get_property = hidinput_get_battery_property;
+
+	quirks = find_battery_quirk(dev);
+
+	hid_dbg(dev, "device %x:%x:%x %d quirks %d\n",
+		dev->bus, dev->vendor, dev->product, dev->version, quirks);
+
+	min = field->logical_minimum;
+	max = field->logical_maximum;
+
+	if (quirks & HID_BATTERY_QUIRK_PERCENT) {
+		min = 0;
+		max = 100;
+	}
+
+	if (quirks & HID_BATTERY_QUIRK_FEATURE)
+		report_type = HID_FEATURE_REPORT;
+
+	dev->battery_min = min;
+	dev->battery_max = max;
+	dev->battery_report_type = report_type;
+	dev->battery_report_id = field->report->id;
+
+	ret = power_supply_register(&dev->dev, battery);
+	if (ret != 0) {
+		hid_warn(dev, "can't register power supply: %d\n", ret);
+		kfree(battery->name);
+		battery->name = NULL;
+	}
+
+out:
+	return true;
+}
+
+static void hidinput_cleanup_battery(struct hid_device *dev)
+{
+	if (!dev->battery.name)
+		return;
+
+	power_supply_unregister(&dev->battery);
+	kfree(dev->battery.name);
+	dev->battery.name = NULL;
+}
+#else  /* !CONFIG_HID_BATTERY_STRENGTH */
+static bool hidinput_setup_battery(struct hid_device *dev, unsigned report_type,
+				   struct hid_field *field)
+{
+	return false;
+}
+
+static void hidinput_cleanup_battery(struct hid_device *dev)
+{
+}
+#endif	/* CONFIG_HID_BATTERY_STRENGTH */
+
 static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field,
 				     struct hid_usage *usage)
 {
@@ -629,6 +786,13 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
 		}
 		break;
 
+	case HID_UP_GENDEVCTRLS:
+		if (hidinput_setup_battery(device, HID_INPUT_REPORT, field))
+			goto ignore;
+		else
+			goto unknown;
+		break;
+
 	case HID_UP_HPVENDOR:	/* Reported on a Dutch layout HP5308 */
 		set_bit(EV_REP, input->evbit);
 		switch (usage->hid & HID_USAGE) {
@@ -822,6 +986,12 @@ void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct
 		return;
 	}
 
+	/* Ignore out-of-range values as per HID specification, section 5.10 */
+	if (value < field->logical_minimum || value > field->logical_maximum) {
+		dbg_hid("Ignoring out-of-range value %x\n", value);
+		return;
+	}
+
 	/* report the usage code as scancode if the key status has changed */
 	if (usage->type == EV_KEY && !!test_bit(usage->code, input->key) != value)
 		input_event(input, EV_MSC, MSC_SCAN, usage->hid);
@@ -861,6 +1031,48 @@ int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int
 }
 EXPORT_SYMBOL_GPL(hidinput_find_field);
 
+struct hid_field *hidinput_get_led_field(struct hid_device *hid)
+{
+	struct hid_report *report;
+	struct hid_field *field;
+	int i, j;
+
+	list_for_each_entry(report,
+			    &hid->report_enum[HID_OUTPUT_REPORT].report_list,
+			    list) {
+		for (i = 0; i < report->maxfield; i++) {
+			field = report->field[i];
+			for (j = 0; j < field->maxusage; j++)
+				if (field->usage[j].type == EV_LED)
+					return field;
+		}
+	}
+	return NULL;
+}
+EXPORT_SYMBOL_GPL(hidinput_get_led_field);
+
+unsigned int hidinput_count_leds(struct hid_device *hid)
+{
+	struct hid_report *report;
+	struct hid_field *field;
+	int i, j;
+	unsigned int count = 0;
+
+	list_for_each_entry(report,
+			    &hid->report_enum[HID_OUTPUT_REPORT].report_list,
+			    list) {
+		for (i = 0; i < report->maxfield; i++) {
+			field = report->field[i];
+			for (j = 0; j < field->maxusage; j++)
+				if (field->usage[j].type == EV_LED &&
+				    field->value[j])
+					count += 1;
+		}
+	}
+	return count;
+}
+EXPORT_SYMBOL_GPL(hidinput_count_leds);
+
 static int hidinput_open(struct input_dev *dev)
 {
 	struct hid_device *hid = input_get_drvdata(dev);
@@ -882,15 +1094,17 @@ static void report_features(struct hid_device *hid)
 	struct hid_report *rep;
 	int i, j;
 
-	if (!drv->feature_mapping)
-		return;
-
 	rep_enum = &hid->report_enum[HID_FEATURE_REPORT];
 	list_for_each_entry(rep, &rep_enum->report_list, list)
 		for (i = 0; i < rep->maxfield; i++)
-			for (j = 0; j < rep->field[i]->maxusage; j++)
-				drv->feature_mapping(hid, rep->field[i],
-						     rep->field[i]->usage + j);
+			for (j = 0; j < rep->field[i]->maxusage; j++) {
+				/* Verify if Battery Strength feature is available */
+				hidinput_setup_battery(hid, HID_FEATURE_REPORT, rep->field[i]);
+
+				if (drv->feature_mapping)
+					drv->feature_mapping(hid, rep->field[i],
+							     rep->field[i]->usage + j);
+			}
 }
 
 /*
@@ -1010,6 +1224,8 @@ void hidinput_disconnect(struct hid_device *hid)
 {
 	struct hid_input *hidinput, *next;
 
+	hidinput_cleanup_battery(hid);
+
 	list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
 		list_del(&hidinput->list);
 		input_unregister_device(hidinput->input);
diff --git a/drivers/hid/hid-lg4ff.c b/drivers/hid/hid-lg4ff.c
index 103f30d93f76..6ecc9e220440 100644
--- a/drivers/hid/hid-lg4ff.c
+++ b/drivers/hid/hid-lg4ff.c
@@ -430,7 +430,7 @@ int lg4ff_init(struct hid_device *hid)
 	}
 
 	/* Add the device to device_list */
-	entry = (struct lg4ff_device_entry *)kzalloc(sizeof(struct lg4ff_device_entry), GFP_KERNEL);
+	entry = kzalloc(sizeof(struct lg4ff_device_entry), GFP_KERNEL);
 	if (!entry) {
 		hid_err(hid, "Cannot add device, insufficient memory.\n");
 		return -ENOMEM;
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index f1c909f1b239..24fc4423b937 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -50,7 +50,6 @@ MODULE_LICENSE("GPL");
 #define MT_QUIRK_ALWAYS_VALID		(1 << 4)
 #define MT_QUIRK_VALID_IS_INRANGE	(1 << 5)
 #define MT_QUIRK_VALID_IS_CONFIDENCE	(1 << 6)
-#define MT_QUIRK_EGALAX_XYZ_FIXUP	(1 << 7)
 #define MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE	(1 << 8)
 
 struct mt_slot {
@@ -60,9 +59,19 @@ struct mt_slot {
 	bool seen_in_this_frame;/* has this slot been updated */
 };
 
+struct mt_class {
+	__s32 name;	/* MT_CLS */
+	__s32 quirks;
+	__s32 sn_move;	/* Signal/noise ratio for move events */
+	__s32 sn_width;	/* Signal/noise ratio for width events */
+	__s32 sn_height;	/* Signal/noise ratio for height events */
+	__s32 sn_pressure;	/* Signal/noise ratio for pressure events */
+	__u8 maxcontacts;
+};
+
 struct mt_device {
 	struct mt_slot curdata;	/* placeholder of incoming data */
-	struct mt_class *mtclass;	/* our mt device class */
+	struct mt_class mtclass;	/* our mt device class */
 	unsigned last_field_index;	/* last field index of the report */
 	unsigned last_slot_field;	/* the last field of a slot */
 	int last_mt_collection;	/* last known mt-related collection */
@@ -74,30 +83,23 @@ struct mt_device {
 	struct mt_slot *slots;
 };
 
-struct mt_class {
-	__s32 name;	/* MT_CLS */
-	__s32 quirks;
-	__s32 sn_move;	/* Signal/noise ratio for move events */
-	__s32 sn_width;	/* Signal/noise ratio for width events */
-	__s32 sn_height;	/* Signal/noise ratio for height events */
-	__s32 sn_pressure;	/* Signal/noise ratio for pressure events */
-	__u8 maxcontacts;
-};
-
 /* classes of device behavior */
 #define MT_CLS_DEFAULT				0x0001
 
 #define MT_CLS_SERIAL				0x0002
 #define MT_CLS_CONFIDENCE			0x0003
-#define MT_CLS_CONFIDENCE_MINUS_ONE		0x0004
-#define MT_CLS_DUAL_INRANGE_CONTACTID		0x0005
-#define MT_CLS_DUAL_INRANGE_CONTACTNUMBER	0x0006
-#define MT_CLS_DUAL_NSMU_CONTACTID		0x0007
+#define MT_CLS_CONFIDENCE_CONTACT_ID		0x0004
+#define MT_CLS_CONFIDENCE_MINUS_ONE		0x0005
+#define MT_CLS_DUAL_INRANGE_CONTACTID		0x0006
+#define MT_CLS_DUAL_INRANGE_CONTACTNUMBER	0x0007
+#define MT_CLS_DUAL_NSMU_CONTACTID		0x0008
+#define MT_CLS_INRANGE_CONTACTNUMBER		0x0009
 
 /* vendor specific classes */
 #define MT_CLS_3M				0x0101
 #define MT_CLS_CYPRESS				0x0102
 #define MT_CLS_EGALAX				0x0103
+#define MT_CLS_EGALAX_SERIAL			0x0104
 
 #define MT_DEFAULT_MAXCONTACT	10
 
@@ -133,13 +135,16 @@ static int find_slot_from_contactid(struct mt_device *td)
 	return -1;
 }
 
-struct mt_class mt_classes[] = {
+static struct mt_class mt_classes[] = {
 	{ .name = MT_CLS_DEFAULT,
 		.quirks = MT_QUIRK_NOT_SEEN_MEANS_UP },
 	{ .name = MT_CLS_SERIAL,
 		.quirks = MT_QUIRK_ALWAYS_VALID},
 	{ .name = MT_CLS_CONFIDENCE,
 		.quirks = MT_QUIRK_VALID_IS_CONFIDENCE },
+	{ .name = MT_CLS_CONFIDENCE_CONTACT_ID,
+		.quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
+			MT_QUIRK_SLOT_IS_CONTACTID },
 	{ .name = MT_CLS_CONFIDENCE_MINUS_ONE,
 		.quirks = MT_QUIRK_VALID_IS_CONFIDENCE |
 			MT_QUIRK_SLOT_IS_CONTACTID_MINUS_ONE },
@@ -155,6 +160,9 @@ struct mt_class mt_classes[] = {
 		.quirks = MT_QUIRK_NOT_SEEN_MEANS_UP |
 			MT_QUIRK_SLOT_IS_CONTACTID,
 		.maxcontacts = 2 },
+	{ .name = MT_CLS_INRANGE_CONTACTNUMBER,
+		.quirks = MT_QUIRK_VALID_IS_INRANGE |
+			MT_QUIRK_SLOT_IS_CONTACTNUMBER },
 
 	/*
 	 * vendor specific classes
@@ -171,9 +179,13 @@ struct mt_class mt_classes[] = {
 		.maxcontacts = 10 },
 	{ .name = MT_CLS_EGALAX,
 		.quirks =  MT_QUIRK_SLOT_IS_CONTACTID |
-			MT_QUIRK_VALID_IS_INRANGE |
-			MT_QUIRK_EGALAX_XYZ_FIXUP,
-		.maxcontacts = 2,
+			MT_QUIRK_VALID_IS_INRANGE,
+		.sn_move = 4096,
+		.sn_pressure = 32,
+	},
+	{ .name = MT_CLS_EGALAX_SERIAL,
+		.quirks =  MT_QUIRK_SLOT_IS_CONTACTID |
+			MT_QUIRK_ALWAYS_VALID,
 		.sn_move = 4096,
 		.sn_pressure = 32,
 	},
@@ -181,6 +193,44 @@ struct mt_class mt_classes[] = {
 	{ }
 };
 
+static ssize_t mt_show_quirks(struct device *dev,
+			   struct device_attribute *attr,
+			   char *buf)
+{
+	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct mt_device *td = hid_get_drvdata(hdev);
+
+	return sprintf(buf, "%u\n", td->mtclass.quirks);
+}
+
+static ssize_t mt_set_quirks(struct device *dev,
+			  struct device_attribute *attr,
+			  const char *buf, size_t count)
+{
+	struct hid_device *hdev = container_of(dev, struct hid_device, dev);
+	struct mt_device *td = hid_get_drvdata(hdev);
+
+	unsigned long val;
+
+	if (kstrtoul(buf, 0, &val))
+		return -EINVAL;
+
+	td->mtclass.quirks = val;
+
+	return count;
+}
+
+static DEVICE_ATTR(quirks, S_IWUSR | S_IRUGO, mt_show_quirks, mt_set_quirks);
+
+static struct attribute *sysfs_attrs[] = {
+	&dev_attr_quirks.attr,
+	NULL
+};
+
+static struct attribute_group mt_attribute_group = {
+	.attrs = sysfs_attrs
+};
+
 static void mt_feature_mapping(struct hid_device *hdev,
 		struct hid_field *field, struct hid_usage *usage)
 {
@@ -192,9 +242,9 @@ static void mt_feature_mapping(struct hid_device *hdev,
 		break;
 	case HID_DG_CONTACTMAX:
 		td->maxcontacts = field->value[0];
-		if (td->mtclass->maxcontacts)
+		if (td->mtclass.maxcontacts)
 			/* check if the maxcontacts is given by the class */
-			td->maxcontacts = td->mtclass->maxcontacts;
+			td->maxcontacts = td->mtclass.maxcontacts;
 
 		break;
 	}
@@ -214,8 +264,7 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 		unsigned long **bit, int *max)
 {
 	struct mt_device *td = hid_get_drvdata(hdev);
-	struct mt_class *cls = td->mtclass;
-	__s32 quirks = cls->quirks;
+	struct mt_class *cls = &td->mtclass;
 
 	/* Only map fields from TouchScreen or TouchPad collections.
          * We need to ignore fields that belong to other collections
@@ -227,13 +276,17 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 	else
 		return 0;
 
+	/* eGalax devices provide a Digitizer.Stylus input which overrides
+	 * the correct Digitizers.Finger X/Y ranges.
+	 * Let's just ignore this input. */
+	if (field->physical == HID_DG_STYLUS)
+		return -1;
+
 	switch (usage->hid & HID_USAGE_PAGE) {
 
 	case HID_UP_GENDESK:
 		switch (usage->hid) {
 		case HID_GD_X:
-			if (quirks & MT_QUIRK_EGALAX_XYZ_FIXUP)
-				field->logical_maximum = 32760;
 			hid_map_usage(hi, usage, bit, max,
 					EV_ABS, ABS_MT_POSITION_X);
 			set_abs(hi->input, ABS_MT_POSITION_X, field,
@@ -246,8 +299,6 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 			}
 			return 1;
 		case HID_GD_Y:
-			if (quirks & MT_QUIRK_EGALAX_XYZ_FIXUP)
-				field->logical_maximum = 32760;
 			hid_map_usage(hi, usage, bit, max,
 					EV_ABS, ABS_MT_POSITION_Y);
 			set_abs(hi->input, ABS_MT_POSITION_Y, field,
@@ -315,8 +366,6 @@ static int mt_input_mapping(struct hid_device *hdev, struct hid_input *hi,
 			}
 			return 1;
 		case HID_DG_TIPPRESSURE:
-			if (quirks & MT_QUIRK_EGALAX_XYZ_FIXUP)
-				field->logical_minimum = 0;
 			hid_map_usage(hi, usage, bit, max,
 					EV_ABS, ABS_MT_PRESSURE);
 			set_abs(hi->input, ABS_MT_PRESSURE, field,
@@ -363,7 +412,7 @@ static int mt_input_mapped(struct hid_device *hdev, struct hid_input *hi,
 
 static int mt_compute_slot(struct mt_device *td)
 {
-	__s32 quirks = td->mtclass->quirks;
+	__s32 quirks = td->mtclass.quirks;
 
 	if (quirks & MT_QUIRK_SLOT_IS_CONTACTID)
 		return td->curdata.contactid;
@@ -407,7 +456,7 @@ static void mt_emit_event(struct mt_device *td, struct input_dev *input)
 
 	for (i = 0; i < td->maxcontacts; ++i) {
 		struct mt_slot *s = &(td->slots[i]);
-		if ((td->mtclass->quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) &&
+		if ((td->mtclass.quirks & MT_QUIRK_NOT_SEEN_MEANS_UP) &&
 			!s->seen_in_this_frame) {
 			s->touch_state = false;
 		}
@@ -444,7 +493,7 @@ static int mt_event(struct hid_device *hid, struct hid_field *field,
 				struct hid_usage *usage, __s32 value)
 {
 	struct mt_device *td = hid_get_drvdata(hid);
-	__s32 quirks = td->mtclass->quirks;
+	__s32 quirks = td->mtclass.quirks;
 
 	if (hid->claimed & HID_CLAIMED_INPUT && td->slots) {
 		switch (usage->hid) {
@@ -552,7 +601,7 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
 		dev_err(&hdev->dev, "cannot allocate multitouch data\n");
 		return -ENOMEM;
 	}
-	td->mtclass = mtclass;
+	td->mtclass = *mtclass;
 	td->inputmode = -1;
 	td->last_mt_collection = -1;
 	hid_set_drvdata(hdev, td);
@@ -574,6 +623,8 @@ static int mt_probe(struct hid_device *hdev, const struct hid_device_id *id)
 		goto fail;
 	}
 
+	ret = sysfs_create_group(&hdev->dev.kobj, &mt_attribute_group);
+
 	mt_set_input_mode(hdev);
 
 	return 0;
@@ -594,6 +645,7 @@ static int mt_reset_resume(struct hid_device *hdev)
 static void mt_remove(struct hid_device *hdev)
 {
 	struct mt_device *td = hid_get_drvdata(hdev);
+	sysfs_remove_group(&hdev->dev.kobj, &mt_attribute_group);
 	hid_hw_stop(hdev);
 	kfree(td->slots);
 	kfree(td);
@@ -609,12 +661,20 @@ static const struct hid_device_id mt_devices[] = {
 	{ .driver_data = MT_CLS_3M,
 		HID_USB_DEVICE(USB_VENDOR_ID_3M,
 			USB_DEVICE_ID_3M2256) },
+	{ .driver_data = MT_CLS_3M,
+		HID_USB_DEVICE(USB_VENDOR_ID_3M,
+			USB_DEVICE_ID_3M3266) },
 
 	/* ActionStar panels */
 	{ .driver_data = MT_CLS_DEFAULT,
 		HID_USB_DEVICE(USB_VENDOR_ID_ACTIONSTAR,
 			USB_DEVICE_ID_ACTIONSTAR_1011) },
 
+	/* Atmel panels */
+	{ .driver_data = MT_CLS_SERIAL,
+		HID_USB_DEVICE(USB_VENDOR_ID_ATMEL,
+			USB_DEVICE_ID_ATMEL_MULTITOUCH) },
+
 	/* Cando panels */
 	{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTNUMBER,
 		HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
@@ -645,23 +705,32 @@ static const struct hid_device_id mt_devices[] = {
 			USB_DEVICE_ID_CYPRESS_TRUETOUCH) },
 
 	/* eGalax devices (resistive) */
-	{  .driver_data = MT_CLS_EGALAX,
+	{ .driver_data = MT_CLS_EGALAX,
 		HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
-			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH) },
-	{  .driver_data = MT_CLS_EGALAX,
+			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480D) },
+	{ .driver_data = MT_CLS_EGALAX,
 		HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
-			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH3) },
+			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_480E) },
 
 	/* eGalax devices (capacitive) */
-	{  .driver_data = MT_CLS_EGALAX,
+	{ .driver_data = MT_CLS_EGALAX,
 		HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
-			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH1) },
-	{  .driver_data = MT_CLS_EGALAX,
+			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_720C) },
+	{ .driver_data = MT_CLS_EGALAX,
 		HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
-			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH2) },
-	{  .driver_data = MT_CLS_EGALAX,
+			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_726B) },
+	{ .driver_data = MT_CLS_EGALAX,
 		HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
-			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH4) },
+			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72A1) },
+	{ .driver_data = MT_CLS_EGALAX,
+		HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_72FA) },
+	{ .driver_data = MT_CLS_EGALAX,
+		HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_7302) },
+	{ .driver_data = MT_CLS_EGALAX_SERIAL,
+		HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH_A001) },
 
 	/* Elo TouchSystems IntelliTouch Plus panel */
 	{ .driver_data = MT_CLS_DUAL_NSMU_CONTACTID,
@@ -678,6 +747,11 @@ static const struct hid_device_id mt_devices[] = {
 		HID_USB_DEVICE(USB_VENDOR_ID_GOODTOUCH,
 			USB_DEVICE_ID_GOODTOUCH_000f) },
 
+	/* Hanvon panels */
+	{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
+		HID_USB_DEVICE(USB_VENDOR_ID_HANVON_ALT,
+			USB_DEVICE_ID_HANVON_ALT_MULTITOUCH) },
+
 	/* Ideacom panel */
 	{ .driver_data = MT_CLS_SERIAL,
 		HID_USB_DEVICE(USB_VENDOR_ID_IDEACOM,
@@ -722,6 +796,17 @@ static const struct hid_device_id mt_devices[] = {
 		HID_USB_DEVICE(USB_VENDOR_ID_PENMOUNT,
 			USB_DEVICE_ID_PENMOUNT_PCI) },
 
+	/* PixArt optical touch screen */
+	{ .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
+		HID_USB_DEVICE(USB_VENDOR_ID_PIXART,
+			USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN) },
+	{ .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
+		HID_USB_DEVICE(USB_VENDOR_ID_PIXART,
+			USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1) },
+	{ .driver_data = MT_CLS_INRANGE_CONTACTNUMBER,
+		HID_USB_DEVICE(USB_VENDOR_ID_PIXART,
+			USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2) },
+
 	/* PixCir-based panels */
 	{ .driver_data = MT_CLS_DUAL_INRANGE_CONTACTID,
 		HID_USB_DEVICE(USB_VENDOR_ID_HANVON,
@@ -730,6 +815,17 @@ static const struct hid_device_id mt_devices[] = {
 		HID_USB_DEVICE(USB_VENDOR_ID_CANDO,
 			USB_DEVICE_ID_CANDO_PIXCIR_MULTI_TOUCH) },
 
+	/* Quanta-based panels */
+	{ .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
+		HID_USB_DEVICE(USB_VENDOR_ID_QUANTA,
+			USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) },
+	{ .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
+		HID_USB_DEVICE(USB_VENDOR_ID_QUANTA,
+			USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3001) },
+	{ .driver_data = MT_CLS_CONFIDENCE_CONTACT_ID,
+		HID_USB_DEVICE(USB_VENDOR_ID_QUANTA,
+			USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH_3008) },
+
 	/* Stantum panels */
 	{ .driver_data = MT_CLS_CONFIDENCE,
 		HID_USB_DEVICE(USB_VENDOR_ID_STANTUM,
@@ -758,6 +854,35 @@ static const struct hid_device_id mt_devices[] = {
 		HID_USB_DEVICE(USB_VENDOR_ID_XAT,
 			USB_DEVICE_ID_XAT_CSR) },
 
+	/* Xiroku */
+	{ .driver_data = MT_CLS_DEFAULT,
+		HID_USB_DEVICE(USB_VENDOR_ID_XIROKU,
+			USB_DEVICE_ID_XIROKU_SPX) },
+	{ .driver_data = MT_CLS_DEFAULT,
+		HID_USB_DEVICE(USB_VENDOR_ID_XIROKU,
+			USB_DEVICE_ID_XIROKU_MPX) },
+	{ .driver_data = MT_CLS_DEFAULT,
+		HID_USB_DEVICE(USB_VENDOR_ID_XIROKU,
+			USB_DEVICE_ID_XIROKU_CSR) },
+	{ .driver_data = MT_CLS_DEFAULT,
+		HID_USB_DEVICE(USB_VENDOR_ID_XIROKU,
+			USB_DEVICE_ID_XIROKU_SPX1) },
+	{ .driver_data = MT_CLS_DEFAULT,
+		HID_USB_DEVICE(USB_VENDOR_ID_XIROKU,
+			USB_DEVICE_ID_XIROKU_MPX1) },
+	{ .driver_data = MT_CLS_DEFAULT,
+		HID_USB_DEVICE(USB_VENDOR_ID_XIROKU,
+			USB_DEVICE_ID_XIROKU_CSR1) },
+	{ .driver_data = MT_CLS_DEFAULT,
+		HID_USB_DEVICE(USB_VENDOR_ID_XIROKU,
+			USB_DEVICE_ID_XIROKU_SPX2) },
+	{ .driver_data = MT_CLS_DEFAULT,
+		HID_USB_DEVICE(USB_VENDOR_ID_XIROKU,
+			USB_DEVICE_ID_XIROKU_MPX2) },
+	{ .driver_data = MT_CLS_DEFAULT,
+		HID_USB_DEVICE(USB_VENDOR_ID_XIROKU,
+			USB_DEVICE_ID_XIROKU_CSR2) },
+
 	{ }
 };
 MODULE_DEVICE_TABLE(hid, mt_devices);
diff --git a/drivers/hid/hid-picolcd.c b/drivers/hid/hid-picolcd.c
index 01e7d2cd7c26..12f9777c385d 100644
--- a/drivers/hid/hid-picolcd.c
+++ b/drivers/hid/hid-picolcd.c
@@ -633,7 +633,7 @@ struct picolcd_fb_cleanup_item {
 	struct picolcd_fb_cleanup_item *next;
 };
 static struct picolcd_fb_cleanup_item *fb_pending;
-DEFINE_SPINLOCK(fb_pending_lock);
+static DEFINE_SPINLOCK(fb_pending_lock);
 
 static void picolcd_fb_do_cleanup(struct work_struct *data)
 {
@@ -658,7 +658,7 @@ static void picolcd_fb_do_cleanup(struct work_struct *data)
 	} while (item);
 }
 
-DECLARE_WORK(picolcd_fb_cleanup, picolcd_fb_do_cleanup);
+static DECLARE_WORK(picolcd_fb_cleanup, picolcd_fb_do_cleanup);
 
 static int picolcd_fb_open(struct fb_info *info, int u)
 {
diff --git a/drivers/hid/hid-quanta.c b/drivers/hid/hid-quanta.c
deleted file mode 100644
index 87a54df4d4ac..000000000000
--- a/drivers/hid/hid-quanta.c
+++ /dev/null
@@ -1,261 +0,0 @@
-/*
- *  HID driver for Quanta Optical Touch dual-touch panels
- *
- *  Copyright (c) 2009-2010 Stephane Chatty <chatty@enac.fr>
- *
- */
-
-/*
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
- */
-
-#include <linux/device.h>
-#include <linux/hid.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-
-MODULE_AUTHOR("Stephane Chatty <chatty@enac.fr>");
-MODULE_DESCRIPTION("Quanta dual-touch panel");
-MODULE_LICENSE("GPL");
-
-#include "hid-ids.h"
-
-struct quanta_data {
-	__u16 x, y;
-	__u8 id;
-	bool valid;		/* valid finger data, or just placeholder? */
-	bool first;		/* is this the first finger in this frame? */
-	bool activity_now;	/* at least one active finger in this frame? */
-	bool activity;		/* at least one active finger previously? */
-};
-
-static int quanta_input_mapping(struct hid_device *hdev, struct hid_input *hi,
-		struct hid_field *field, struct hid_usage *usage,
-		unsigned long **bit, int *max)
-{
-	switch (usage->hid & HID_USAGE_PAGE) {
-
-	case HID_UP_GENDESK:
-		switch (usage->hid) {
-		case HID_GD_X:
-			hid_map_usage(hi, usage, bit, max,
-					EV_ABS, ABS_MT_POSITION_X);
-			/* touchscreen emulation */
-			input_set_abs_params(hi->input, ABS_X,
-						field->logical_minimum,
-						field->logical_maximum, 0, 0);
-			return 1;
-		case HID_GD_Y:
-			hid_map_usage(hi, usage, bit, max,
-					EV_ABS, ABS_MT_POSITION_Y);
-			/* touchscreen emulation */
-			input_set_abs_params(hi->input, ABS_Y,
-						field->logical_minimum,
-						field->logical_maximum, 0, 0);
-			return 1;
-		}
-		return 0;
-
-	case HID_UP_DIGITIZER:
-		switch (usage->hid) {
-		case HID_DG_CONFIDENCE:
-		case HID_DG_TIPSWITCH:
-		case HID_DG_INPUTMODE:
-		case HID_DG_DEVICEINDEX:
-		case HID_DG_CONTACTCOUNT:
-		case HID_DG_CONTACTMAX:
-		case HID_DG_TIPPRESSURE:
-		case HID_DG_WIDTH:
-		case HID_DG_HEIGHT:
-			return -1;
-		case HID_DG_INRANGE:
-			/* touchscreen emulation */
-			hid_map_usage(hi, usage, bit, max, EV_KEY, BTN_TOUCH);
-			return 1;
-		case HID_DG_CONTACTID:
-			hid_map_usage(hi, usage, bit, max,
-					EV_ABS, ABS_MT_TRACKING_ID);
-			return 1;
-		}
-		return 0;
-
-	case 0xff000000:
-		/* ignore vendor-specific features */
-		return -1;
-	}
-
-	return 0;
-}
-
-static int quanta_input_mapped(struct hid_device *hdev, struct hid_input *hi,
-		struct hid_field *field, struct hid_usage *usage,
-		unsigned long **bit, int *max)
-{
-	if (usage->type == EV_KEY || usage->type == EV_ABS)
-		clear_bit(usage->code, *bit);
-
-	return 0;
-}
-
-/*
- * this function is called when a whole finger has been parsed,
- * so that it can decide what to send to the input layer.
- */
-static void quanta_filter_event(struct quanta_data *td, struct input_dev *input)
-{
-	
-	td->first = !td->first; /* touchscreen emulation */
-
-	if (!td->valid) {
-		/*
-		 * touchscreen emulation: if no finger in this frame is valid
-		 * and there previously was finger activity, this is a release
-		 */ 
-		if (!td->first && !td->activity_now && td->activity) {
-			input_event(input, EV_KEY, BTN_TOUCH, 0);
-			td->activity = false;
-		}
-		return;
-	}
-
-	input_event(input, EV_ABS, ABS_MT_TRACKING_ID, td->id);
-	input_event(input, EV_ABS, ABS_MT_POSITION_X, td->x);
-	input_event(input, EV_ABS, ABS_MT_POSITION_Y, td->y);
-
-	input_mt_sync(input);
-	td->valid = false;
-
-	/* touchscreen emulation: if first active finger in this frame... */
-	if (!td->activity_now) {
-		/* if there was no previous activity, emit touch event */
-		if (!td->activity) {
-			input_event(input, EV_KEY, BTN_TOUCH, 1);
-			td->activity = true;
-		}
-		td->activity_now = true;
-		/* and in any case this is our preferred finger */
-		input_event(input, EV_ABS, ABS_X, td->x);
-		input_event(input, EV_ABS, ABS_Y, td->y);
-	}
-}
-
-
-static int quanta_event(struct hid_device *hid, struct hid_field *field,
-				struct hid_usage *usage, __s32 value)
-{
-	struct quanta_data *td = hid_get_drvdata(hid);
-
-	if (hid->claimed & HID_CLAIMED_INPUT) {
-		struct input_dev *input = field->hidinput->input;
-
-		switch (usage->hid) {
-		case HID_DG_INRANGE:
-			td->valid = !!value;
-			break;
-		case HID_GD_X:
-			td->x = value;
-			break;
-		case HID_GD_Y:
-			td->y = value;
-			quanta_filter_event(td, input);
-			break;
-		case HID_DG_CONTACTID:
-			td->id = value;
-			break;
-		case HID_DG_CONTACTCOUNT:
-			/* touch emulation: this is the last field in a frame */
-			td->first = false;
-			td->activity_now = false;
-			break;
-		case HID_DG_CONFIDENCE:
-		case HID_DG_TIPSWITCH:
-			/* avoid interference from generic hidinput handling */
-			break;
-
-		default:
-			/* fallback to the generic hidinput handling */
-			return 0;
-		}
-	}
-
-	/* we have handled the hidinput part, now remains hiddev */
-	if (hid->claimed & HID_CLAIMED_HIDDEV && hid->hiddev_hid_event)
-		hid->hiddev_hid_event(hid, field, usage, value);
-
-	return 1;
-}
-
-static int quanta_probe(struct hid_device *hdev, const struct hid_device_id *id)
-{
-	int ret;
-	struct quanta_data *td;
-
-	td = kmalloc(sizeof(struct quanta_data), GFP_KERNEL);
-	if (!td) {
-		hid_err(hdev, "cannot allocate Quanta Touch data\n");
-		return -ENOMEM;
-	}
-	td->valid = false;
-	td->activity = false;
-	td->activity_now = false;
-	td->first = false;
-	hid_set_drvdata(hdev, td);
-
-	ret = hid_parse(hdev);
-	if (!ret)
-		ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
-
-	if (ret)
-		kfree(td);
-
-	return ret;
-}
-
-static void quanta_remove(struct hid_device *hdev)
-{
-	hid_hw_stop(hdev);
-	kfree(hid_get_drvdata(hdev));
-	hid_set_drvdata(hdev, NULL);
-}
-
-static const struct hid_device_id quanta_devices[] = {
-	{ HID_USB_DEVICE(USB_VENDOR_ID_QUANTA,
-			USB_DEVICE_ID_QUANTA_OPTICAL_TOUCH) },
-	{ HID_USB_DEVICE(USB_VENDOR_ID_QUANTA,
-			USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN) },
-	{ }
-};
-MODULE_DEVICE_TABLE(hid, quanta_devices);
-
-static const struct hid_usage_id quanta_grabbed_usages[] = {
-	{ HID_ANY_ID, HID_ANY_ID, HID_ANY_ID },
-	{ HID_ANY_ID - 1, HID_ANY_ID - 1, HID_ANY_ID - 1}
-};
-
-static struct hid_driver quanta_driver = {
-	.name = "quanta-touch",
-	.id_table = quanta_devices,
-	.probe = quanta_probe,
-	.remove = quanta_remove,
-	.input_mapping = quanta_input_mapping,
-	.input_mapped = quanta_input_mapped,
-	.usage_table = quanta_grabbed_usages,
-	.event = quanta_event,
-};
-
-static int __init quanta_init(void)
-{
-	return hid_register_driver(&quanta_driver);
-}
-
-static void __exit quanta_exit(void)
-{
-	hid_unregister_driver(&quanta_driver);
-}
-
-module_init(quanta_init);
-module_exit(quanta_exit);
-
diff --git a/drivers/hid/hid-roccat-common.c b/drivers/hid/hid-roccat-common.c
index b07e7f96a358..a6d93992c75a 100644
--- a/drivers/hid/hid-roccat-common.c
+++ b/drivers/hid/hid-roccat-common.c
@@ -49,12 +49,10 @@ int roccat_common_send(struct usb_device *usb_dev, uint report_id,
 	char *buf;
 	int len;
 
-	buf = kmalloc(size, GFP_KERNEL);
+	buf = kmemdup(data, size, GFP_KERNEL);
 	if (buf == NULL)
 		return -ENOMEM;
 
-	memcpy(buf, data, size);
-
 	len = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0),
 			HID_REQ_SET_REPORT,
 			USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT,
diff --git a/drivers/hid/hid-roccat-isku.c b/drivers/hid/hid-roccat-isku.c
new file mode 100644
index 000000000000..0e4a0ab47142
--- /dev/null
+++ b/drivers/hid/hid-roccat-isku.c
@@ -0,0 +1,487 @@
+/*
+ * Roccat Isku driver for Linux
+ *
+ * Copyright (c) 2011 Stefan Achatz <erazor_de@users.sourceforge.net>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+/*
+ * Roccat Isku is a gamer keyboard with macro keys that can be configured in
+ * 5 profiles.
+ */
+
+#include <linux/device.h>
+#include <linux/input.h>
+#include <linux/hid.h>
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/hid-roccat.h>
+#include "hid-ids.h"
+#include "hid-roccat-common.h"
+#include "hid-roccat-isku.h"
+
+static struct class *isku_class;
+
+static void isku_profile_activated(struct isku_device *isku, uint new_profile)
+{
+	isku->actual_profile = new_profile;
+}
+
+static int isku_receive(struct usb_device *usb_dev, uint command,
+		void *buf, uint size)
+{
+	return roccat_common_receive(usb_dev, command, buf, size);
+}
+
+static int isku_receive_control_status(struct usb_device *usb_dev)
+{
+	int retval;
+	struct isku_control control;
+
+	do {
+		msleep(50);
+		retval = isku_receive(usb_dev, ISKU_COMMAND_CONTROL,
+				&control, sizeof(struct isku_control));
+
+		if (retval)
+			return retval;
+
+		switch (control.value) {
+		case ISKU_CONTROL_VALUE_STATUS_OK:
+			return 0;
+		case ISKU_CONTROL_VALUE_STATUS_WAIT:
+			continue;
+		case ISKU_CONTROL_VALUE_STATUS_INVALID:
+		/* seems to be critical - replug necessary */
+		case ISKU_CONTROL_VALUE_STATUS_OVERLOAD:
+			return -EINVAL;
+		default:
+			hid_err(usb_dev, "isku_receive_control_status: "
+					"unknown response value 0x%x\n",
+					control.value);
+			return -EINVAL;
+		}
+
+	} while (1);
+}
+
+static int isku_send(struct usb_device *usb_dev, uint command,
+		void const *buf, uint size)
+{
+	int retval;
+
+	retval = roccat_common_send(usb_dev, command, buf, size);
+	if (retval)
+		return retval;
+
+	return isku_receive_control_status(usb_dev);
+}
+
+static int isku_get_actual_profile(struct usb_device *usb_dev)
+{
+	struct isku_actual_profile buf;
+	int retval;
+
+	retval = isku_receive(usb_dev, ISKU_COMMAND_ACTUAL_PROFILE,
+			&buf, sizeof(struct isku_actual_profile));
+	return retval ? retval : buf.actual_profile;
+}
+
+static int isku_set_actual_profile(struct usb_device *usb_dev, int new_profile)
+{
+	struct isku_actual_profile buf;
+
+	buf.command = ISKU_COMMAND_ACTUAL_PROFILE;
+	buf.size = sizeof(struct isku_actual_profile);
+	buf.actual_profile = new_profile;
+	return isku_send(usb_dev, ISKU_COMMAND_ACTUAL_PROFILE, &buf,
+			sizeof(struct isku_actual_profile));
+}
+
+static ssize_t isku_sysfs_show_actual_profile(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct isku_device *isku =
+			hid_get_drvdata(dev_get_drvdata(dev->parent->parent));
+	return snprintf(buf, PAGE_SIZE, "%d\n", isku->actual_profile);
+}
+
+static ssize_t isku_sysfs_set_actual_profile(struct device *dev,
+		struct device_attribute *attr, char const *buf, size_t size)
+{
+	struct isku_device *isku;
+	struct usb_device *usb_dev;
+	unsigned long profile;
+	int retval;
+	struct isku_roccat_report roccat_report;
+
+	dev = dev->parent->parent;
+	isku = hid_get_drvdata(dev_get_drvdata(dev));
+	usb_dev = interface_to_usbdev(to_usb_interface(dev));
+
+	retval = strict_strtoul(buf, 10, &profile);
+	if (retval)
+		return retval;
+
+	if (profile > 4)
+		return -EINVAL;
+
+	mutex_lock(&isku->isku_lock);
+
+	retval = isku_set_actual_profile(usb_dev, profile);
+	if (retval) {
+		mutex_unlock(&isku->isku_lock);
+		return retval;
+	}
+
+	isku_profile_activated(isku, profile);
+
+	roccat_report.event = ISKU_REPORT_BUTTON_EVENT_PROFILE;
+	roccat_report.data1 = profile + 1;
+	roccat_report.data2 = 0;
+	roccat_report.profile = profile + 1;
+	roccat_report_event(isku->chrdev_minor, (uint8_t const *)&roccat_report);
+
+	mutex_unlock(&isku->isku_lock);
+
+	return size;
+}
+
+static struct device_attribute isku_attributes[] = {
+	__ATTR(actual_profile, 0660,
+			isku_sysfs_show_actual_profile,
+			isku_sysfs_set_actual_profile),
+	__ATTR_NULL
+};
+
+static ssize_t isku_sysfs_read(struct file *fp, struct kobject *kobj,
+		char *buf, loff_t off, size_t count,
+		size_t real_size, uint command)
+{
+	struct device *dev =
+			container_of(kobj, struct device, kobj)->parent->parent;
+	struct isku_device *isku = hid_get_drvdata(dev_get_drvdata(dev));
+	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
+	int retval;
+
+	if (off >= real_size)
+		return 0;
+
+	if (off != 0 || count != real_size)
+		return -EINVAL;
+
+	mutex_lock(&isku->isku_lock);
+	retval = isku_receive(usb_dev, command, buf, real_size);
+	mutex_unlock(&isku->isku_lock);
+
+	return retval ? retval : real_size;
+}
+
+static ssize_t isku_sysfs_write(struct file *fp, struct kobject *kobj,
+		void const *buf, loff_t off, size_t count,
+		size_t real_size, uint command)
+{
+	struct device *dev =
+			container_of(kobj, struct device, kobj)->parent->parent;
+	struct isku_device *isku = hid_get_drvdata(dev_get_drvdata(dev));
+	struct usb_device *usb_dev = interface_to_usbdev(to_usb_interface(dev));
+	int retval;
+
+	if (off != 0 || count != real_size)
+		return -EINVAL;
+
+	mutex_lock(&isku->isku_lock);
+	retval = isku_send(usb_dev, command, (void *)buf, real_size);
+	mutex_unlock(&isku->isku_lock);
+
+	return retval ? retval : real_size;
+}
+
+#define ISKU_SYSFS_W(thingy, THINGY) \
+static ssize_t isku_sysfs_write_ ## thingy(struct file *fp, struct kobject *kobj, \
+		struct bin_attribute *attr, char *buf, \
+		loff_t off, size_t count) \
+{ \
+	return isku_sysfs_write(fp, kobj, buf, off, count, \
+			sizeof(struct isku_ ## thingy), ISKU_COMMAND_ ## THINGY); \
+}
+
+#define ISKU_SYSFS_R(thingy, THINGY) \
+static ssize_t isku_sysfs_read_ ## thingy(struct file *fp, struct kobject *kobj, \
+		struct bin_attribute *attr, char *buf, \
+		loff_t off, size_t count) \
+{ \
+	return isku_sysfs_read(fp, kobj, buf, off, count, \
+			sizeof(struct isku_ ## thingy), ISKU_COMMAND_ ## THINGY); \
+}
+
+#define ISKU_SYSFS_RW(thingy, THINGY) \
+ISKU_SYSFS_R(thingy, THINGY) \
+ISKU_SYSFS_W(thingy, THINGY)
+
+#define ISKU_BIN_ATTR_RW(thingy) \
+{ \
+	.attr = { .name = #thingy, .mode = 0660 }, \
+	.size = sizeof(struct isku_ ## thingy), \
+	.read = isku_sysfs_read_ ## thingy, \
+	.write = isku_sysfs_write_ ## thingy \
+}
+
+#define ISKU_BIN_ATTR_R(thingy) \
+{ \
+	.attr = { .name = #thingy, .mode = 0440 }, \
+	.size = sizeof(struct isku_ ## thingy), \
+	.read = isku_sysfs_read_ ## thingy, \
+}
+
+#define ISKU_BIN_ATTR_W(thingy) \
+{ \
+	.attr = { .name = #thingy, .mode = 0220 }, \
+	.size = sizeof(struct isku_ ## thingy), \
+	.write = isku_sysfs_write_ ## thingy \
+}
+
+ISKU_SYSFS_RW(macro, MACRO)
+ISKU_SYSFS_RW(keys_function, KEYS_FUNCTION)
+ISKU_SYSFS_RW(keys_easyzone, KEYS_EASYZONE)
+ISKU_SYSFS_RW(keys_media, KEYS_MEDIA)
+ISKU_SYSFS_RW(keys_thumbster, KEYS_THUMBSTER)
+ISKU_SYSFS_RW(keys_macro, KEYS_MACRO)
+ISKU_SYSFS_RW(keys_capslock, KEYS_CAPSLOCK)
+ISKU_SYSFS_RW(light, LIGHT)
+ISKU_SYSFS_RW(key_mask, KEY_MASK)
+ISKU_SYSFS_RW(last_set, LAST_SET)
+ISKU_SYSFS_W(talk, TALK)
+ISKU_SYSFS_R(info, INFO)
+ISKU_SYSFS_W(control, CONTROL)
+
+static struct bin_attribute isku_bin_attributes[] = {
+	ISKU_BIN_ATTR_RW(macro),
+	ISKU_BIN_ATTR_RW(keys_function),
+	ISKU_BIN_ATTR_RW(keys_easyzone),
+	ISKU_BIN_ATTR_RW(keys_media),
+	ISKU_BIN_ATTR_RW(keys_thumbster),
+	ISKU_BIN_ATTR_RW(keys_macro),
+	ISKU_BIN_ATTR_RW(keys_capslock),
+	ISKU_BIN_ATTR_RW(light),
+	ISKU_BIN_ATTR_RW(key_mask),
+	ISKU_BIN_ATTR_RW(last_set),
+	ISKU_BIN_ATTR_W(talk),
+	ISKU_BIN_ATTR_R(info),
+	ISKU_BIN_ATTR_W(control),
+	__ATTR_NULL
+};
+
+static int isku_init_isku_device_struct(struct usb_device *usb_dev,
+		struct isku_device *isku)
+{
+	int retval;
+
+	mutex_init(&isku->isku_lock);
+
+	retval = isku_get_actual_profile(usb_dev);
+	if (retval < 0)
+		return retval;
+	isku_profile_activated(isku, retval);
+
+	return 0;
+}
+
+static int isku_init_specials(struct hid_device *hdev)
+{
+	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
+	struct usb_device *usb_dev = interface_to_usbdev(intf);
+	struct isku_device *isku;
+	int retval;
+
+	if (intf->cur_altsetting->desc.bInterfaceProtocol
+			!= ISKU_USB_INTERFACE_PROTOCOL) {
+		hid_set_drvdata(hdev, NULL);
+		return 0;
+	}
+
+	isku = kzalloc(sizeof(*isku), GFP_KERNEL);
+	if (!isku) {
+		hid_err(hdev, "can't alloc device descriptor\n");
+		return -ENOMEM;
+	}
+	hid_set_drvdata(hdev, isku);
+
+	retval = isku_init_isku_device_struct(usb_dev, isku);
+	if (retval) {
+		hid_err(hdev, "couldn't init struct isku_device\n");
+		goto exit_free;
+	}
+
+	retval = roccat_connect(isku_class, hdev,
+			sizeof(struct isku_roccat_report));
+	if (retval < 0) {
+		hid_err(hdev, "couldn't init char dev\n");
+	} else {
+		isku->chrdev_minor = retval;
+		isku->roccat_claimed = 1;
+	}
+
+	return 0;
+exit_free:
+	kfree(isku);
+	return retval;
+}
+
+static void isku_remove_specials(struct hid_device *hdev)
+{
+	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
+	struct isku_device *isku;
+
+	if (intf->cur_altsetting->desc.bInterfaceProtocol
+			!= ISKU_USB_INTERFACE_PROTOCOL)
+		return;
+
+	isku = hid_get_drvdata(hdev);
+	if (isku->roccat_claimed)
+		roccat_disconnect(isku->chrdev_minor);
+	kfree(isku);
+}
+
+static int isku_probe(struct hid_device *hdev,
+		const struct hid_device_id *id)
+{
+	int retval;
+
+	retval = hid_parse(hdev);
+	if (retval) {
+		hid_err(hdev, "parse failed\n");
+		goto exit;
+	}
+
+	retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+	if (retval) {
+		hid_err(hdev, "hw start failed\n");
+		goto exit;
+	}
+
+	retval = isku_init_specials(hdev);
+	if (retval) {
+		hid_err(hdev, "couldn't install keyboard\n");
+		goto exit_stop;
+	}
+
+	return 0;
+
+exit_stop:
+	hid_hw_stop(hdev);
+exit:
+	return retval;
+}
+
+static void isku_remove(struct hid_device *hdev)
+{
+	isku_remove_specials(hdev);
+	hid_hw_stop(hdev);
+}
+
+static void isku_keep_values_up_to_date(struct isku_device *isku,
+		u8 const *data)
+{
+	struct isku_report_button const *button_report;
+
+	switch (data[0]) {
+	case ISKU_REPORT_NUMBER_BUTTON:
+		button_report = (struct isku_report_button const *)data;
+		switch (button_report->event) {
+		case ISKU_REPORT_BUTTON_EVENT_PROFILE:
+			isku_profile_activated(isku, button_report->data1 - 1);
+			break;
+		}
+		break;
+	}
+}
+
+static void isku_report_to_chrdev(struct isku_device const *isku,
+		u8 const *data)
+{
+	struct isku_roccat_report roccat_report;
+	struct isku_report_button const *button_report;
+
+	if (data[0] != ISKU_REPORT_NUMBER_BUTTON)
+		return;
+
+	button_report = (struct isku_report_button const *)data;
+
+	roccat_report.event = button_report->event;
+	roccat_report.data1 = button_report->data1;
+	roccat_report.data2 = button_report->data2;
+	roccat_report.profile = isku->actual_profile + 1;
+	roccat_report_event(isku->chrdev_minor,
+			(uint8_t const *)&roccat_report);
+}
+
+static int isku_raw_event(struct hid_device *hdev,
+		struct hid_report *report, u8 *data, int size)
+{
+	struct usb_interface *intf = to_usb_interface(hdev->dev.parent);
+	struct isku_device *isku = hid_get_drvdata(hdev);
+
+	if (intf->cur_altsetting->desc.bInterfaceProtocol
+			!= ISKU_USB_INTERFACE_PROTOCOL)
+		return 0;
+
+	if (isku == NULL)
+		return 0;
+
+	isku_keep_values_up_to_date(isku, data);
+
+	if (isku->roccat_claimed)
+		isku_report_to_chrdev(isku, data);
+
+	return 0;
+}
+
+static const struct hid_device_id isku_devices[] = {
+	{ HID_USB_DEVICE(USB_VENDOR_ID_ROCCAT, USB_DEVICE_ID_ROCCAT_ISKU) },
+	{ }
+};
+
+MODULE_DEVICE_TABLE(hid, isku_devices);
+
+static struct hid_driver isku_driver = {
+		.name = "isku",
+		.id_table = isku_devices,
+		.probe = isku_probe,
+		.remove = isku_remove,
+		.raw_event = isku_raw_event
+};
+
+static int __init isku_init(void)
+{
+	int retval;
+	isku_class = class_create(THIS_MODULE, "isku");
+	if (IS_ERR(isku_class))
+		return PTR_ERR(isku_class);
+	isku_class->dev_attrs = isku_attributes;
+	isku_class->dev_bin_attrs = isku_bin_attributes;
+
+	retval = hid_register_driver(&isku_driver);
+	if (retval)
+		class_destroy(isku_class);
+	return retval;
+}
+
+static void __exit isku_exit(void)
+{
+	hid_unregister_driver(&isku_driver);
+	class_destroy(isku_class);
+}
+
+module_init(isku_init);
+module_exit(isku_exit);
+
+MODULE_AUTHOR("Stefan Achatz");
+MODULE_DESCRIPTION("USB Roccat Isku driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/hid/hid-roccat-isku.h b/drivers/hid/hid-roccat-isku.h
new file mode 100644
index 000000000000..075f6efaec58
--- /dev/null
+++ b/drivers/hid/hid-roccat-isku.h
@@ -0,0 +1,147 @@
+#ifndef __HID_ROCCAT_ISKU_H
+#define __HID_ROCCAT_ISKU_H
+
+/*
+ * Copyright (c) 2011 Stefan Achatz <erazor_de@users.sourceforge.net>
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#include <linux/types.h>
+
+enum {
+	ISKU_PROFILE_NUM = 5,
+	ISKU_USB_INTERFACE_PROTOCOL = 0,
+};
+
+struct isku_control {
+	uint8_t command; /* ISKU_COMMAND_CONTROL */
+	uint8_t value;
+	uint8_t request;
+} __packed;
+
+enum isku_control_values {
+	ISKU_CONTROL_VALUE_STATUS_OVERLOAD = 0,
+	ISKU_CONTROL_VALUE_STATUS_OK = 1,
+	ISKU_CONTROL_VALUE_STATUS_INVALID = 2,
+	ISKU_CONTROL_VALUE_STATUS_WAIT = 3,
+};
+
+struct isku_actual_profile {
+	uint8_t command; /* ISKU_COMMAND_ACTUAL_PROFILE */
+	uint8_t size; /* always 3 */
+	uint8_t actual_profile;
+} __packed;
+
+struct isku_key_mask {
+	uint8_t command; /* ISKU_COMMAND_KEY_MASK */
+	uint8_t size; /* 6 */
+	uint8_t profile_number; /* 0-4 */
+	uint8_t mask;
+	uint16_t checksum;
+} __packed;
+
+struct isku_keys_function {
+	uint8_t data[0x29];
+} __packed;
+
+struct isku_keys_easyzone {
+	uint8_t data[0x41];
+} __packed;
+
+struct isku_keys_media {
+	uint8_t data[0x1d];
+} __packed;
+
+struct isku_keys_thumbster {
+	uint8_t data[0x17];
+} __packed;
+
+struct isku_keys_macro {
+	uint8_t data[0x23];
+} __packed;
+
+struct isku_keys_capslock {
+	uint8_t data[0x6];
+} __packed;
+
+struct isku_macro {
+	uint8_t data[0x823];
+} __packed;
+
+struct isku_light {
+	uint8_t data[0xa];
+} __packed;
+
+struct isku_info {
+	uint8_t data[2];
+	uint8_t firmware_version;
+	uint8_t unknown[3];
+} __packed;
+
+struct isku_talk {
+	uint8_t data[0x10];
+} __packed;
+
+struct isku_last_set {
+	uint8_t data[0x14];
+} __packed;
+
+enum isku_commands {
+	ISKU_COMMAND_CONTROL = 0x4,
+	ISKU_COMMAND_ACTUAL_PROFILE = 0x5,
+	ISKU_COMMAND_KEY_MASK = 0x7,
+	ISKU_COMMAND_KEYS_FUNCTION = 0x8,
+	ISKU_COMMAND_KEYS_EASYZONE = 0x9,
+	ISKU_COMMAND_KEYS_MEDIA = 0xa,
+	ISKU_COMMAND_KEYS_THUMBSTER = 0xb,
+	ISKU_COMMAND_KEYS_MACRO = 0xd,
+	ISKU_COMMAND_MACRO = 0xe,
+	ISKU_COMMAND_INFO = 0xf,
+	ISKU_COMMAND_LIGHT = 0x10,
+	ISKU_COMMAND_KEYS_CAPSLOCK = 0x13,
+	ISKU_COMMAND_LAST_SET = 0x14,
+	ISKU_COMMAND_15 = 0x15,
+	ISKU_COMMAND_TALK = 0x16,
+	ISKU_COMMAND_FIRMWARE_WRITE = 0x1b,
+	ISKU_COMMAND_FIRMWARE_WRITE_CONTROL = 0x1c,
+};
+
+struct isku_report_button {
+	uint8_t number; /* ISKU_REPORT_NUMBER_BUTTON */
+	uint8_t zero;
+	uint8_t event;
+	uint8_t data1;
+	uint8_t data2;
+};
+
+enum isku_report_numbers {
+	ISKU_REPORT_NUMBER_BUTTON = 3,
+};
+
+enum isku_report_button_events {
+	ISKU_REPORT_BUTTON_EVENT_PROFILE = 0x2,
+};
+
+struct isku_roccat_report {
+	uint8_t event;
+	uint8_t data1;
+	uint8_t data2;
+	uint8_t profile;
+} __packed;
+
+struct isku_device {
+	int roccat_claimed;
+	int chrdev_minor;
+
+	struct mutex isku_lock;
+
+	int actual_profile;
+};
+
+#endif
diff --git a/drivers/hid/hid-roccat-kone.c b/drivers/hid/hid-roccat-kone.c
index e2072afb34bb..40090d602158 100644
--- a/drivers/hid/hid-roccat-kone.c
+++ b/drivers/hid/hid-roccat-kone.c
@@ -78,12 +78,10 @@ static int kone_send(struct usb_device *usb_dev, uint usb_command,
 	char *buf;
 	int len;
 
-	buf = kmalloc(size, GFP_KERNEL);
+	buf = kmemdup(data, size, GFP_KERNEL);
 	if (buf == NULL)
 		return -ENOMEM;
 
-	memcpy(buf, data, size);
-
 	len = usb_control_msg(usb_dev, usb_sndctrlpipe(usb_dev, 0),
 			HID_REQ_SET_REPORT,
 			USB_TYPE_CLASS | USB_RECIP_INTERFACE | USB_DIR_OUT,
diff --git a/drivers/hid/hid-wacom.c b/drivers/hid/hid-wacom.c
index 17bb88f782b6..f2183486a9b6 100644
--- a/drivers/hid/hid-wacom.c
+++ b/drivers/hid/hid-wacom.c
@@ -9,6 +9,7 @@
  *  Copyright (c) 2008 Jiri Slaby <jirislaby@gmail.com>
  *  Copyright (c) 2006 Andrew Zabolotny <zap@homelink.ru>
  *  Copyright (c) 2009 Bastien Nocera <hadess@hadess.net>
+ *  Copyright (c) 2011 Przemysław Firszt <przemo@firszt.eu>
  */
 
 /*
@@ -33,6 +34,7 @@
 struct wacom_data {
 	__u16 tool;
 	unsigned char butstate;
+	__u8 features;
 	unsigned char high_speed;
 #ifdef CONFIG_HID_WACOM_POWER_SUPPLY
 	int battery_capacity;
@@ -107,6 +109,19 @@ static int wacom_ac_get_property(struct power_supply *psy,
 }
 #endif
 
+static void wacom_set_features(struct hid_device *hdev)
+{
+	int ret;
+	__u8 rep_data[2];
+
+	/*set high speed, tablet mode*/
+	rep_data[0] = 0x03;
+	rep_data[1] = 0x20;
+	ret = hdev->hid_output_raw_report(hdev, rep_data, 2,
+				HID_FEATURE_REPORT);
+	return;
+}
+
 static void wacom_poke(struct hid_device *hdev, u8 speed)
 {
 	struct wacom_data *wdata = hid_get_drvdata(hdev);
@@ -177,26 +192,13 @@ static ssize_t wacom_store_speed(struct device *dev,
 static DEVICE_ATTR(speed, S_IRUGO | S_IWUSR | S_IWGRP,
 		wacom_show_speed, wacom_store_speed);
 
-static int wacom_raw_event(struct hid_device *hdev, struct hid_report *report,
-		u8 *raw_data, int size)
+static int wacom_gr_parse_report(struct hid_device *hdev,
+			struct wacom_data *wdata,
+			struct input_dev *input, unsigned char *data)
 {
-	struct wacom_data *wdata = hid_get_drvdata(hdev);
-	struct hid_input *hidinput;
-	struct input_dev *input;
-	unsigned char *data = (unsigned char *) raw_data;
 	int tool, x, y, rw;
 
-	if (!(hdev->claimed & HID_CLAIMED_INPUT))
-		return 0;
-
 	tool = 0;
-	hidinput = list_entry(hdev->inputs.next, struct hid_input, list);
-	input = hidinput->input;
-
-	/* Check if this is a tablet report */
-	if (data[0] != 0x03)
-		return 0;
-
 	/* Get X & Y positions */
 	x = le16_to_cpu(*(__le16 *) &data[2]);
 	y = le16_to_cpu(*(__le16 *) &data[4]);
@@ -304,6 +306,121 @@ static int wacom_raw_event(struct hid_device *hdev, struct hid_report *report,
 	return 1;
 }
 
+static void wacom_i4_parse_pen_report(struct wacom_data *wdata,
+			struct input_dev *input, unsigned char *data)
+{
+	__u16 x, y, pressure;
+	__u32 id;
+
+	switch (data[1]) {
+	case 0x80: /* Out of proximity report */
+		wdata->tool = 0;
+		input_report_key(input, BTN_TOUCH, 0);
+		input_report_abs(input, ABS_PRESSURE, 0);
+		input_report_key(input, wdata->tool, 0);
+		input_sync(input);
+		break;
+	case 0xC2: /* Tool report */
+		id = ((data[2] << 4) | (data[3] >> 4) |
+			((data[7] & 0x0f) << 20) |
+			((data[8] & 0xf0) << 12)) & 0xfffff;
+
+		switch (id) {
+		case 0x802:
+			wdata->tool = BTN_TOOL_PEN;
+			break;
+		case 0x80A:
+			wdata->tool = BTN_TOOL_RUBBER;
+			break;
+		}
+		break;
+	default: /* Position/pressure report */
+		x = data[2] << 9 | data[3] << 1 | ((data[9] & 0x02) >> 1);
+		y = data[4] << 9 | data[5] << 1 | (data[9] & 0x01);
+		pressure = (data[6] << 3) | ((data[7] & 0xC0) >> 5)
+			| (data[1] & 0x01);
+
+		input_report_key(input, BTN_TOUCH, pressure > 1);
+
+		input_report_key(input, BTN_STYLUS, data[1] & 0x02);
+		input_report_key(input, BTN_STYLUS2, data[1] & 0x04);
+		input_report_key(input, wdata->tool, 1);
+		input_report_abs(input, ABS_X, x);
+		input_report_abs(input, ABS_Y, y);
+		input_report_abs(input, ABS_PRESSURE, pressure);
+		input_sync(input);
+		break;
+	}
+
+	return;
+}
+
+static void wacom_i4_parse_report(struct hid_device *hdev,
+			struct wacom_data *wdata,
+			struct input_dev *input, unsigned char *data)
+{
+	switch (data[0]) {
+	case 0x00: /* Empty report */
+		break;
+	case 0x02: /* Pen report */
+		wacom_i4_parse_pen_report(wdata, input, data);
+		break;
+	case 0x03: /* Features Report */
+		wdata->features = data[2];
+		break;
+	case 0x0C: /* Button report */
+		break;
+	default:
+		hid_err(hdev, "Unknown report: %d,%d\n", data[0], data[1]);
+		break;
+	}
+}
+
+static int wacom_raw_event(struct hid_device *hdev, struct hid_report *report,
+		u8 *raw_data, int size)
+{
+	struct wacom_data *wdata = hid_get_drvdata(hdev);
+	struct hid_input *hidinput;
+	struct input_dev *input;
+	unsigned char *data = (unsigned char *) raw_data;
+	int i;
+
+	if (!(hdev->claimed & HID_CLAIMED_INPUT))
+		return 0;
+
+	hidinput = list_entry(hdev->inputs.next, struct hid_input, list);
+	input = hidinput->input;
+
+	/* Check if this is a tablet report */
+	if (data[0] != 0x03)
+		return 0;
+
+	switch (hdev->product) {
+	case USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH:
+		return wacom_gr_parse_report(hdev, wdata, input, data);
+		break;
+	case USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH:
+		i = 1;
+
+		switch (data[0]) {
+		case 0x04:
+			wacom_i4_parse_report(hdev, wdata, input, data + i);
+			i += 10;
+			/* fall through */
+		case 0x03:
+			wacom_i4_parse_report(hdev, wdata, input, data + i);
+			i += 10;
+			wacom_i4_parse_report(hdev, wdata, input, data + i);
+			break;
+		default:
+			hid_err(hdev, "Unknown report: %d,%d size:%d\n",
+					data[0], data[1], size);
+			return 0;
+		}
+	}
+	return 1;
+}
+
 static int wacom_input_mapped(struct hid_device *hdev, struct hid_input *hi,
 	struct hid_field *field, struct hid_usage *usage, unsigned long **bit,
 								int *max)
@@ -338,10 +455,19 @@ static int wacom_input_mapped(struct hid_device *hdev, struct hid_input *hi,
 	__set_bit(BTN_TOOL_RUBBER, input->keybit);
 	__set_bit(BTN_TOOL_MOUSE, input->keybit);
 
-	input_set_abs_params(input, ABS_X, 0, 16704, 4, 0);
-	input_set_abs_params(input, ABS_Y, 0, 12064, 4, 0);
-	input_set_abs_params(input, ABS_PRESSURE, 0, 511, 0, 0);
-	input_set_abs_params(input, ABS_DISTANCE, 0, 32, 0, 0);
+	switch (hdev->product) {
+	case USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH:
+		input_set_abs_params(input, ABS_X, 0, 16704, 4, 0);
+		input_set_abs_params(input, ABS_Y, 0, 12064, 4, 0);
+		input_set_abs_params(input, ABS_PRESSURE, 0, 511, 0, 0);
+		input_set_abs_params(input, ABS_DISTANCE, 0, 32, 0, 0);
+		break;
+	case USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH:
+		input_set_abs_params(input, ABS_X, 0, 40640, 4, 0);
+		input_set_abs_params(input, ABS_Y, 0, 25400, 4, 0);
+		input_set_abs_params(input, ABS_PRESSURE, 0, 2047, 0, 0);
+		break;
+	}
 
 	return 0;
 }
@@ -378,8 +504,16 @@ static int wacom_probe(struct hid_device *hdev,
 		hid_warn(hdev,
 			 "can't create sysfs speed attribute err: %d\n", ret);
 
-	/* Set Wacom mode 2 with high reporting speed */
-	wacom_poke(hdev, 1);
+	switch (hdev->product) {
+	case USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH:
+		/* Set Wacom mode 2 with high reporting speed */
+		wacom_poke(hdev, 1);
+		break;
+	case USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH:
+		wdata->features = 0;
+		wacom_set_features(hdev);
+		break;
+	}
 
 #ifdef CONFIG_HID_WACOM_POWER_SUPPLY
 	wdata->battery.properties = wacom_battery_props;
@@ -441,6 +575,7 @@ static void wacom_remove(struct hid_device *hdev)
 
 static const struct hid_device_id wacom_devices[] = {
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH) },
+	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_WACOM, USB_DEVICE_ID_WACOM_INTUOS4_BLUETOOTH) },
 
 	{ }
 };
diff --git a/drivers/hid/hid-wiimote.c b/drivers/hid/hid-wiimote-core.c
index 76739c07fa3c..61881b35c670 100644
--- a/drivers/hid/hid-wiimote.c
+++ b/drivers/hid/hid-wiimote-core.c
@@ -20,91 +20,7 @@
 #include <linux/power_supply.h>
 #include <linux/spinlock.h>
 #include "hid-ids.h"
-
-#define WIIMOTE_VERSION "0.2"
-#define WIIMOTE_NAME "Nintendo Wii Remote"
-#define WIIMOTE_BUFSIZE 32
-
-struct wiimote_buf {
-	__u8 data[HID_MAX_BUFFER_SIZE];
-	size_t size;
-};
-
-struct wiimote_state {
-	spinlock_t lock;
-	__u8 flags;
-	__u8 accel_split[2];
-
-	/* synchronous cmd requests */
-	struct mutex sync;
-	struct completion ready;
-	int cmd;
-	__u32 opt;
-
-	/* results of synchronous requests */
-	__u8 cmd_battery;
-	__u8 cmd_err;
-};
-
-struct wiimote_data {
-	struct hid_device *hdev;
-	struct input_dev *input;
-	struct led_classdev *leds[4];
-	struct input_dev *accel;
-	struct input_dev *ir;
-	struct power_supply battery;
-
-	spinlock_t qlock;
-	__u8 head;
-	__u8 tail;
-	struct wiimote_buf outq[WIIMOTE_BUFSIZE];
-	struct work_struct worker;
-
-	struct wiimote_state state;
-};
-
-#define WIIPROTO_FLAG_LED1		0x01
-#define WIIPROTO_FLAG_LED2		0x02
-#define WIIPROTO_FLAG_LED3		0x04
-#define WIIPROTO_FLAG_LED4		0x08
-#define WIIPROTO_FLAG_RUMBLE		0x10
-#define WIIPROTO_FLAG_ACCEL		0x20
-#define WIIPROTO_FLAG_IR_BASIC		0x40
-#define WIIPROTO_FLAG_IR_EXT		0x80
-#define WIIPROTO_FLAG_IR_FULL		0xc0 /* IR_BASIC | IR_EXT */
-#define WIIPROTO_FLAGS_LEDS (WIIPROTO_FLAG_LED1 | WIIPROTO_FLAG_LED2 | \
-					WIIPROTO_FLAG_LED3 | WIIPROTO_FLAG_LED4)
-#define WIIPROTO_FLAGS_IR (WIIPROTO_FLAG_IR_BASIC | WIIPROTO_FLAG_IR_EXT | \
-							WIIPROTO_FLAG_IR_FULL)
-
-/* return flag for led \num */
-#define WIIPROTO_FLAG_LED(num) (WIIPROTO_FLAG_LED1 << (num - 1))
-
-enum wiiproto_reqs {
-	WIIPROTO_REQ_NULL = 0x0,
-	WIIPROTO_REQ_RUMBLE = 0x10,
-	WIIPROTO_REQ_LED = 0x11,
-	WIIPROTO_REQ_DRM = 0x12,
-	WIIPROTO_REQ_IR1 = 0x13,
-	WIIPROTO_REQ_SREQ = 0x15,
-	WIIPROTO_REQ_WMEM = 0x16,
-	WIIPROTO_REQ_RMEM = 0x17,
-	WIIPROTO_REQ_IR2 = 0x1a,
-	WIIPROTO_REQ_STATUS = 0x20,
-	WIIPROTO_REQ_DATA = 0x21,
-	WIIPROTO_REQ_RETURN = 0x22,
-	WIIPROTO_REQ_DRM_K = 0x30,
-	WIIPROTO_REQ_DRM_KA = 0x31,
-	WIIPROTO_REQ_DRM_KE = 0x32,
-	WIIPROTO_REQ_DRM_KAI = 0x33,
-	WIIPROTO_REQ_DRM_KEE = 0x34,
-	WIIPROTO_REQ_DRM_KAE = 0x35,
-	WIIPROTO_REQ_DRM_KIE = 0x36,
-	WIIPROTO_REQ_DRM_KAIE = 0x37,
-	WIIPROTO_REQ_DRM_E = 0x3d,
-	WIIPROTO_REQ_DRM_SKAI1 = 0x3e,
-	WIIPROTO_REQ_DRM_SKAI2 = 0x3f,
-};
+#include "hid-wiimote.h"
 
 enum wiiproto_keys {
 	WIIPROTO_KEY_LEFT,
@@ -139,52 +55,6 @@ static enum power_supply_property wiimote_battery_props[] = {
 	POWER_SUPPLY_PROP_CAPACITY
 };
 
-/* requires the state.lock spinlock to be held */
-static inline bool wiimote_cmd_pending(struct wiimote_data *wdata, int cmd,
-								__u32 opt)
-{
-	return wdata->state.cmd == cmd && wdata->state.opt == opt;
-}
-
-/* requires the state.lock spinlock to be held */
-static inline void wiimote_cmd_complete(struct wiimote_data *wdata)
-{
-	wdata->state.cmd = WIIPROTO_REQ_NULL;
-	complete(&wdata->state.ready);
-}
-
-static inline int wiimote_cmd_acquire(struct wiimote_data *wdata)
-{
-	return mutex_lock_interruptible(&wdata->state.sync) ? -ERESTARTSYS : 0;
-}
-
-/* requires the state.lock spinlock to be held */
-static inline void wiimote_cmd_set(struct wiimote_data *wdata, int cmd,
-								__u32 opt)
-{
-	INIT_COMPLETION(wdata->state.ready);
-	wdata->state.cmd = cmd;
-	wdata->state.opt = opt;
-}
-
-static inline void wiimote_cmd_release(struct wiimote_data *wdata)
-{
-	mutex_unlock(&wdata->state.sync);
-}
-
-static inline int wiimote_cmd_wait(struct wiimote_data *wdata)
-{
-	int ret;
-
-	ret = wait_for_completion_interruptible_timeout(&wdata->state.ready, HZ);
-	if (ret < 0)
-		return -ERESTARTSYS;
-	else if (ret == 0)
-		return -EIO;
-	else
-		return 0;
-}
-
 static ssize_t wiimote_hid_send(struct hid_device *hdev, __u8 *buffer,
 								size_t count)
 {
@@ -329,6 +199,7 @@ static void wiiproto_req_leds(struct wiimote_data *wdata, int leds)
 static __u8 select_drm(struct wiimote_data *wdata)
 {
 	__u8 ir = wdata->state.flags & WIIPROTO_FLAGS_IR;
+	bool ext = wiiext_active(wdata);
 
 	if (ir == WIIPROTO_FLAG_IR_BASIC) {
 		if (wdata->state.flags & WIIPROTO_FLAG_ACCEL)
@@ -340,14 +211,21 @@ static __u8 select_drm(struct wiimote_data *wdata)
 	} else if (ir == WIIPROTO_FLAG_IR_FULL) {
 		return WIIPROTO_REQ_DRM_SKAI1;
 	} else {
-		if (wdata->state.flags & WIIPROTO_FLAG_ACCEL)
-			return WIIPROTO_REQ_DRM_KA;
-		else
-			return WIIPROTO_REQ_DRM_K;
+		if (wdata->state.flags & WIIPROTO_FLAG_ACCEL) {
+			if (ext)
+				return WIIPROTO_REQ_DRM_KAE;
+			else
+				return WIIPROTO_REQ_DRM_KA;
+		} else {
+			if (ext)
+				return WIIPROTO_REQ_DRM_KE;
+			else
+				return WIIPROTO_REQ_DRM_K;
+		}
 	}
 }
 
-static void wiiproto_req_drm(struct wiimote_data *wdata, __u8 drm)
+void wiiproto_req_drm(struct wiimote_data *wdata, __u8 drm)
 {
 	__u8 cmd[3];
 
@@ -358,6 +236,7 @@ static void wiiproto_req_drm(struct wiimote_data *wdata, __u8 drm)
 	cmd[1] = 0;
 	cmd[2] = drm;
 
+	wdata->state.drm = drm;
 	wiiproto_keep_rumble(wdata, &cmd[1]);
 	wiimote_queue(wdata, cmd, sizeof(cmd));
 }
@@ -440,8 +319,33 @@ static void wiiproto_req_wmem(struct wiimote_data *wdata, bool eeprom,
 	wiimote_queue(wdata, cmd, sizeof(cmd));
 }
 
+void wiiproto_req_rmem(struct wiimote_data *wdata, bool eeprom, __u32 offset,
+								__u16 size)
+{
+	__u8 cmd[7];
+
+	if (size == 0) {
+		hid_warn(wdata->hdev, "Invalid length %d rmem request\n", size);
+		return;
+	}
+
+	cmd[0] = WIIPROTO_REQ_RMEM;
+	cmd[1] = 0;
+	cmd[2] = (offset >> 16) & 0xff;
+	cmd[3] = (offset >> 8) & 0xff;
+	cmd[4] = offset & 0xff;
+	cmd[5] = (size >> 8) & 0xff;
+	cmd[6] = size & 0xff;
+
+	if (!eeprom)
+		cmd[1] |= 0x04;
+
+	wiiproto_keep_rumble(wdata, &cmd[1]);
+	wiimote_queue(wdata, cmd, sizeof(cmd));
+}
+
 /* requries the cmd-mutex to be held */
-static int wiimote_cmd_write(struct wiimote_data *wdata, __u32 offset,
+int wiimote_cmd_write(struct wiimote_data *wdata, __u32 offset,
 						const __u8 *wmem, __u8 size)
 {
 	unsigned long flags;
@@ -459,6 +363,36 @@ static int wiimote_cmd_write(struct wiimote_data *wdata, __u32 offset,
 	return ret;
 }
 
+/* requries the cmd-mutex to be held */
+ssize_t wiimote_cmd_read(struct wiimote_data *wdata, __u32 offset, __u8 *rmem,
+								__u8 size)
+{
+	unsigned long flags;
+	ssize_t ret;
+
+	spin_lock_irqsave(&wdata->state.lock, flags);
+	wdata->state.cmd_read_size = size;
+	wdata->state.cmd_read_buf = rmem;
+	wiimote_cmd_set(wdata, WIIPROTO_REQ_RMEM, offset & 0xffff);
+	wiiproto_req_rreg(wdata, offset, size);
+	spin_unlock_irqrestore(&wdata->state.lock, flags);
+
+	ret = wiimote_cmd_wait(wdata);
+
+	spin_lock_irqsave(&wdata->state.lock, flags);
+	wdata->state.cmd_read_buf = NULL;
+	spin_unlock_irqrestore(&wdata->state.lock, flags);
+
+	if (!ret) {
+		if (wdata->state.cmd_read_size == 0)
+			ret = -EIO;
+		else
+			ret = wdata->state.cmd_read_size;
+	}
+
+	return ret;
+}
+
 static int wiimote_battery_get_property(struct power_supply *psy,
 						enum power_supply_property psp,
 						union power_supply_propval *val)
@@ -862,6 +796,8 @@ static void handler_status(struct wiimote_data *wdata, const __u8 *payload)
 	/* on status reports the drm is reset so we need to resend the drm */
 	wiiproto_req_drm(wdata, WIIPROTO_REQ_NULL);
 
+	wiiext_event(wdata, payload[2] & 0x02);
+
 	if (wiimote_cmd_pending(wdata, WIIPROTO_REQ_SREQ, 0)) {
 		wdata->state.cmd_battery = payload[5];
 		wiimote_cmd_complete(wdata);
@@ -870,7 +806,23 @@ static void handler_status(struct wiimote_data *wdata, const __u8 *payload)
 
 static void handler_data(struct wiimote_data *wdata, const __u8 *payload)
 {
+	__u16 offset = payload[3] << 8 | payload[4];
+	__u8 size = (payload[2] >> 4) + 1;
+	__u8 err = payload[2] & 0x0f;
+
 	handler_keys(wdata, payload);
+
+	if (wiimote_cmd_pending(wdata, WIIPROTO_REQ_RMEM, offset)) {
+		if (err)
+			size = 0;
+		else if (size > wdata->state.cmd_read_size)
+			size = wdata->state.cmd_read_size;
+
+		wdata->state.cmd_read_size = size;
+		if (wdata->state.cmd_read_buf)
+			memcpy(wdata->state.cmd_read_buf, &payload[5], size);
+		wiimote_cmd_complete(wdata);
+	}
 }
 
 static void handler_return(struct wiimote_data *wdata, const __u8 *payload)
@@ -898,6 +850,7 @@ static void handler_drm_KA(struct wiimote_data *wdata, const __u8 *payload)
 static void handler_drm_KE(struct wiimote_data *wdata, const __u8 *payload)
 {
 	handler_keys(wdata, payload);
+	wiiext_handle(wdata, &payload[2]);
 }
 
 static void handler_drm_KAI(struct wiimote_data *wdata, const __u8 *payload)
@@ -914,6 +867,7 @@ static void handler_drm_KAI(struct wiimote_data *wdata, const __u8 *payload)
 static void handler_drm_KEE(struct wiimote_data *wdata, const __u8 *payload)
 {
 	handler_keys(wdata, payload);
+	wiiext_handle(wdata, &payload[2]);
 }
 
 static void handler_drm_KIE(struct wiimote_data *wdata, const __u8 *payload)
@@ -924,12 +878,14 @@ static void handler_drm_KIE(struct wiimote_data *wdata, const __u8 *payload)
 	ir_to_input2(wdata, &payload[7], false);
 	ir_to_input3(wdata, &payload[9], true);
 	input_sync(wdata->ir);
+	wiiext_handle(wdata, &payload[12]);
 }
 
 static void handler_drm_KAE(struct wiimote_data *wdata, const __u8 *payload)
 {
 	handler_keys(wdata, payload);
 	handler_accel(wdata, payload);
+	wiiext_handle(wdata, &payload[5]);
 }
 
 static void handler_drm_KAIE(struct wiimote_data *wdata, const __u8 *payload)
@@ -941,10 +897,12 @@ static void handler_drm_KAIE(struct wiimote_data *wdata, const __u8 *payload)
 	ir_to_input2(wdata, &payload[10], false);
 	ir_to_input3(wdata, &payload[12], true);
 	input_sync(wdata->ir);
+	wiiext_handle(wdata, &payload[15]);
 }
 
 static void handler_drm_E(struct wiimote_data *wdata, const __u8 *payload)
 {
+	wiiext_handle(wdata, payload);
 }
 
 static void handler_drm_SKAI1(struct wiimote_data *wdata, const __u8 *payload)
@@ -1182,6 +1140,7 @@ static struct wiimote_data *wiimote_create(struct hid_device *hdev)
 	spin_lock_init(&wdata->state.lock);
 	init_completion(&wdata->state.ready);
 	mutex_init(&wdata->state.sync);
+	wdata->state.drm = WIIPROTO_REQ_DRM_K;
 
 	return wdata;
 
@@ -1196,6 +1155,8 @@ err:
 
 static void wiimote_destroy(struct wiimote_data *wdata)
 {
+	wiidebug_deinit(wdata);
+	wiiext_deinit(wdata);
 	wiimote_leds_destroy(wdata);
 
 	power_supply_unregister(&wdata->battery);
@@ -1214,6 +1175,8 @@ static int wiimote_hid_probe(struct hid_device *hdev,
 	struct wiimote_data *wdata;
 	int ret;
 
+	hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS;
+
 	wdata = wiimote_create(hdev);
 	if (!wdata) {
 		hid_err(hdev, "Can't alloc device\n");
@@ -1267,6 +1230,14 @@ static int wiimote_hid_probe(struct hid_device *hdev,
 	if (ret)
 		goto err_free;
 
+	ret = wiiext_init(wdata);
+	if (ret)
+		goto err_free;
+
+	ret = wiidebug_init(wdata);
+	if (ret)
+		goto err_free;
+
 	hid_info(hdev, "New device registered\n");
 
 	/* by default set led1 after device initialization */
@@ -1343,4 +1314,3 @@ module_exit(wiimote_exit);
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("David Herrmann <dh.herrmann@gmail.com>");
 MODULE_DESCRIPTION(WIIMOTE_NAME " Device Driver");
-MODULE_VERSION(WIIMOTE_VERSION);
diff --git a/drivers/hid/hid-wiimote-debug.c b/drivers/hid/hid-wiimote-debug.c
new file mode 100644
index 000000000000..17dabc1f339e
--- /dev/null
+++ b/drivers/hid/hid-wiimote-debug.c
@@ -0,0 +1,227 @@
+/*
+ * Debug support for HID Nintendo Wiimote devices
+ * Copyright (c) 2011 David Herrmann
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#include <linux/debugfs.h>
+#include <linux/module.h>
+#include <linux/seq_file.h>
+#include <linux/spinlock.h>
+#include <linux/uaccess.h>
+#include "hid-wiimote.h"
+
+struct wiimote_debug {
+	struct wiimote_data *wdata;
+	struct dentry *eeprom;
+	struct dentry *drm;
+};
+
+static int wiidebug_eeprom_open(struct inode *i, struct file *f)
+{
+	f->private_data = i->i_private;
+	return 0;
+}
+
+static ssize_t wiidebug_eeprom_read(struct file *f, char __user *u, size_t s,
+								loff_t *off)
+{
+	struct wiimote_debug *dbg = f->private_data;
+	struct wiimote_data *wdata = dbg->wdata;
+	unsigned long flags;
+	ssize_t ret;
+	char buf[16];
+	__u16 size;
+
+	if (s == 0)
+		return -EINVAL;
+	if (*off > 0xffffff)
+		return 0;
+	if (s > 16)
+		s = 16;
+
+	ret = wiimote_cmd_acquire(wdata);
+	if (ret)
+		return ret;
+
+	spin_lock_irqsave(&wdata->state.lock, flags);
+	wdata->state.cmd_read_size = s;
+	wdata->state.cmd_read_buf = buf;
+	wiimote_cmd_set(wdata, WIIPROTO_REQ_RMEM, *off & 0xffff);
+	wiiproto_req_reeprom(wdata, *off, s);
+	spin_unlock_irqrestore(&wdata->state.lock, flags);
+
+	ret = wiimote_cmd_wait(wdata);
+	if (!ret)
+		size = wdata->state.cmd_read_size;
+
+	spin_lock_irqsave(&wdata->state.lock, flags);
+	wdata->state.cmd_read_buf = NULL;
+	spin_unlock_irqrestore(&wdata->state.lock, flags);
+
+	wiimote_cmd_release(wdata);
+
+	if (ret)
+		return ret;
+	else if (size == 0)
+		return -EIO;
+
+	if (copy_to_user(u, buf, size))
+		return -EFAULT;
+
+	*off += size;
+	ret = size;
+
+	return ret;
+}
+
+static const struct file_operations wiidebug_eeprom_fops = {
+	.owner = THIS_MODULE,
+	.open = wiidebug_eeprom_open,
+	.read = wiidebug_eeprom_read,
+	.llseek = generic_file_llseek,
+};
+
+static const char *wiidebug_drmmap[] = {
+	[WIIPROTO_REQ_NULL] = "NULL",
+	[WIIPROTO_REQ_DRM_K] = "K",
+	[WIIPROTO_REQ_DRM_KA] = "KA",
+	[WIIPROTO_REQ_DRM_KE] = "KE",
+	[WIIPROTO_REQ_DRM_KAI] = "KAI",
+	[WIIPROTO_REQ_DRM_KEE] = "KEE",
+	[WIIPROTO_REQ_DRM_KAE] = "KAE",
+	[WIIPROTO_REQ_DRM_KIE] = "KIE",
+	[WIIPROTO_REQ_DRM_KAIE] = "KAIE",
+	[WIIPROTO_REQ_DRM_E] = "E",
+	[WIIPROTO_REQ_DRM_SKAI1] = "SKAI1",
+	[WIIPROTO_REQ_DRM_SKAI2] = "SKAI2",
+	[WIIPROTO_REQ_MAX] = NULL
+};
+
+static int wiidebug_drm_show(struct seq_file *f, void *p)
+{
+	struct wiimote_debug *dbg = f->private;
+	const char *str = NULL;
+	unsigned long flags;
+	__u8 drm;
+
+	spin_lock_irqsave(&dbg->wdata->state.lock, flags);
+	drm = dbg->wdata->state.drm;
+	spin_unlock_irqrestore(&dbg->wdata->state.lock, flags);
+
+	if (drm < WIIPROTO_REQ_MAX)
+		str = wiidebug_drmmap[drm];
+	if (!str)
+		str = "unknown";
+
+	seq_printf(f, "%s\n", str);
+
+	return 0;
+}
+
+static int wiidebug_drm_open(struct inode *i, struct file *f)
+{
+	return single_open(f, wiidebug_drm_show, i->i_private);
+}
+
+static ssize_t wiidebug_drm_write(struct file *f, const char __user *u,
+							size_t s, loff_t *off)
+{
+	struct wiimote_debug *dbg = f->private_data;
+	unsigned long flags;
+	char buf[16];
+	ssize_t len;
+	int i;
+
+	if (s == 0)
+		return -EINVAL;
+
+	len = min((size_t) 15, s);
+	if (copy_from_user(buf, u, len))
+		return -EFAULT;
+
+	buf[15] = 0;
+
+	for (i = 0; i < WIIPROTO_REQ_MAX; ++i) {
+		if (!wiidebug_drmmap[i])
+			continue;
+		if (!strcasecmp(buf, wiidebug_drmmap[i]))
+			break;
+	}
+
+	if (i == WIIPROTO_REQ_MAX)
+		i = simple_strtoul(buf, NULL, 10);
+
+	spin_lock_irqsave(&dbg->wdata->state.lock, flags);
+	wiiproto_req_drm(dbg->wdata, (__u8) i);
+	spin_unlock_irqrestore(&dbg->wdata->state.lock, flags);
+
+	return len;
+}
+
+static const struct file_operations wiidebug_drm_fops = {
+	.owner = THIS_MODULE,
+	.open = wiidebug_drm_open,
+	.read = seq_read,
+	.llseek = seq_lseek,
+	.write = wiidebug_drm_write,
+	.release = single_release,
+};
+
+int wiidebug_init(struct wiimote_data *wdata)
+{
+	struct wiimote_debug *dbg;
+	unsigned long flags;
+	int ret = -ENOMEM;
+
+	dbg = kzalloc(sizeof(*dbg), GFP_KERNEL);
+	if (!dbg)
+		return -ENOMEM;
+
+	dbg->wdata = wdata;
+
+	dbg->eeprom = debugfs_create_file("eeprom", S_IRUSR,
+		dbg->wdata->hdev->debug_dir, dbg, &wiidebug_eeprom_fops);
+	if (!dbg->eeprom)
+		goto err;
+
+	dbg->drm = debugfs_create_file("drm", S_IRUSR,
+			dbg->wdata->hdev->debug_dir, dbg, &wiidebug_drm_fops);
+	if (!dbg->drm)
+		goto err_drm;
+
+	spin_lock_irqsave(&wdata->state.lock, flags);
+	wdata->debug = dbg;
+	spin_unlock_irqrestore(&wdata->state.lock, flags);
+
+	return 0;
+
+err_drm:
+	debugfs_remove(dbg->eeprom);
+err:
+	kfree(dbg);
+	return ret;
+}
+
+void wiidebug_deinit(struct wiimote_data *wdata)
+{
+	struct wiimote_debug *dbg = wdata->debug;
+	unsigned long flags;
+
+	if (!dbg)
+		return;
+
+	spin_lock_irqsave(&wdata->state.lock, flags);
+	wdata->debug = NULL;
+	spin_unlock_irqrestore(&wdata->state.lock, flags);
+
+	debugfs_remove(dbg->drm);
+	debugfs_remove(dbg->eeprom);
+	kfree(dbg);
+}
diff --git a/drivers/hid/hid-wiimote-ext.c b/drivers/hid/hid-wiimote-ext.c
new file mode 100644
index 000000000000..aa958706c0e5
--- /dev/null
+++ b/drivers/hid/hid-wiimote-ext.c
@@ -0,0 +1,752 @@
+/*
+ * HID driver for Nintendo Wiimote extension devices
+ * Copyright (c) 2011 David Herrmann
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#include <linux/atomic.h>
+#include <linux/module.h>
+#include <linux/spinlock.h>
+#include <linux/workqueue.h>
+#include "hid-wiimote.h"
+
+struct wiimote_ext {
+	struct wiimote_data *wdata;
+	struct work_struct worker;
+	struct input_dev *input;
+	struct input_dev *mp_input;
+
+	atomic_t opened;
+	atomic_t mp_opened;
+	bool plugged;
+	bool mp_plugged;
+	bool motionp;
+	__u8 ext_type;
+};
+
+enum wiiext_type {
+	WIIEXT_NONE,		/* placeholder */
+	WIIEXT_CLASSIC,		/* Nintendo classic controller */
+	WIIEXT_NUNCHUCK,	/* Nintendo nunchuck controller */
+};
+
+enum wiiext_keys {
+	WIIEXT_KEY_C,
+	WIIEXT_KEY_Z,
+	WIIEXT_KEY_A,
+	WIIEXT_KEY_B,
+	WIIEXT_KEY_X,
+	WIIEXT_KEY_Y,
+	WIIEXT_KEY_ZL,
+	WIIEXT_KEY_ZR,
+	WIIEXT_KEY_PLUS,
+	WIIEXT_KEY_MINUS,
+	WIIEXT_KEY_HOME,
+	WIIEXT_KEY_LEFT,
+	WIIEXT_KEY_RIGHT,
+	WIIEXT_KEY_UP,
+	WIIEXT_KEY_DOWN,
+	WIIEXT_KEY_LT,
+	WIIEXT_KEY_RT,
+	WIIEXT_KEY_COUNT
+};
+
+static __u16 wiiext_keymap[] = {
+	BTN_C,		/* WIIEXT_KEY_C */
+	BTN_Z,		/* WIIEXT_KEY_Z */
+	BTN_A,		/* WIIEXT_KEY_A */
+	BTN_B,		/* WIIEXT_KEY_B */
+	BTN_X,		/* WIIEXT_KEY_X */
+	BTN_Y,		/* WIIEXT_KEY_Y */
+	BTN_TL2,	/* WIIEXT_KEY_ZL */
+	BTN_TR2,	/* WIIEXT_KEY_ZR */
+	KEY_NEXT,	/* WIIEXT_KEY_PLUS */
+	KEY_PREVIOUS,	/* WIIEXT_KEY_MINUS */
+	BTN_MODE,	/* WIIEXT_KEY_HOME */
+	KEY_LEFT,	/* WIIEXT_KEY_LEFT */
+	KEY_RIGHT,	/* WIIEXT_KEY_RIGHT */
+	KEY_UP,		/* WIIEXT_KEY_UP */
+	KEY_DOWN,	/* WIIEXT_KEY_DOWN */
+	BTN_TL,		/* WIIEXT_KEY_LT */
+	BTN_TR,		/* WIIEXT_KEY_RT */
+};
+
+/* diable all extensions */
+static void ext_disable(struct wiimote_ext *ext)
+{
+	unsigned long flags;
+	__u8 wmem = 0x55;
+
+	if (!wiimote_cmd_acquire(ext->wdata)) {
+		wiimote_cmd_write(ext->wdata, 0xa400f0, &wmem, sizeof(wmem));
+		wiimote_cmd_release(ext->wdata);
+	}
+
+	spin_lock_irqsave(&ext->wdata->state.lock, flags);
+	ext->motionp = false;
+	ext->ext_type = WIIEXT_NONE;
+	wiiproto_req_drm(ext->wdata, WIIPROTO_REQ_NULL);
+	spin_unlock_irqrestore(&ext->wdata->state.lock, flags);
+}
+
+static bool motionp_read(struct wiimote_ext *ext)
+{
+	__u8 rmem[2], wmem;
+	ssize_t ret;
+	bool avail = false;
+
+	if (!atomic_read(&ext->mp_opened))
+		return false;
+
+	if (wiimote_cmd_acquire(ext->wdata))
+		return false;
+
+	/* initialize motion plus */
+	wmem = 0x55;
+	ret = wiimote_cmd_write(ext->wdata, 0xa600f0, &wmem, sizeof(wmem));
+	if (ret)
+		goto error;
+
+	/* read motion plus ID */
+	ret = wiimote_cmd_read(ext->wdata, 0xa600fe, rmem, 2);
+	if (ret == 2 || rmem[1] == 0x5)
+		avail = true;
+
+error:
+	wiimote_cmd_release(ext->wdata);
+	return avail;
+}
+
+static __u8 ext_read(struct wiimote_ext *ext)
+{
+	ssize_t ret;
+	__u8 rmem[2], wmem;
+	__u8 type = WIIEXT_NONE;
+
+	if (!ext->plugged || !atomic_read(&ext->opened))
+		return WIIEXT_NONE;
+
+	if (wiimote_cmd_acquire(ext->wdata))
+		return WIIEXT_NONE;
+
+	/* initialize extension */
+	wmem = 0x55;
+	ret = wiimote_cmd_write(ext->wdata, 0xa400f0, &wmem, sizeof(wmem));
+	if (!ret) {
+		/* disable encryption */
+		wmem = 0x0;
+		wiimote_cmd_write(ext->wdata, 0xa400fb, &wmem, sizeof(wmem));
+	}
+
+	/* read extension ID */
+	ret = wiimote_cmd_read(ext->wdata, 0xa400fe, rmem, 2);
+	if (ret == 2) {
+		if (rmem[0] == 0 && rmem[1] == 0)
+			type = WIIEXT_NUNCHUCK;
+		else if (rmem[0] == 0x01 && rmem[1] == 0x01)
+			type = WIIEXT_CLASSIC;
+	}
+
+	wiimote_cmd_release(ext->wdata);
+
+	return type;
+}
+
+static void ext_enable(struct wiimote_ext *ext, bool motionp, __u8 ext_type)
+{
+	unsigned long flags;
+	__u8 wmem;
+	int ret;
+
+	if (motionp) {
+		if (wiimote_cmd_acquire(ext->wdata))
+			return;
+
+		if (ext_type == WIIEXT_CLASSIC)
+			wmem = 0x07;
+		else if (ext_type == WIIEXT_NUNCHUCK)
+			wmem = 0x05;
+		else
+			wmem = 0x04;
+
+		ret = wiimote_cmd_write(ext->wdata, 0xa600fe, &wmem, sizeof(wmem));
+		wiimote_cmd_release(ext->wdata);
+		if (ret)
+			return;
+	}
+
+	spin_lock_irqsave(&ext->wdata->state.lock, flags);
+	ext->motionp = motionp;
+	ext->ext_type = ext_type;
+	wiiproto_req_drm(ext->wdata, WIIPROTO_REQ_NULL);
+	spin_unlock_irqrestore(&ext->wdata->state.lock, flags);
+}
+
+static void wiiext_worker(struct work_struct *work)
+{
+	struct wiimote_ext *ext = container_of(work, struct wiimote_ext,
+									worker);
+	bool motionp;
+	__u8 ext_type;
+
+	ext_disable(ext);
+	motionp = motionp_read(ext);
+	ext_type = ext_read(ext);
+	ext_enable(ext, motionp, ext_type);
+}
+
+/* schedule work only once, otherwise mark for reschedule */
+static void wiiext_schedule(struct wiimote_ext *ext)
+{
+	queue_work(system_nrt_wq, &ext->worker);
+}
+
+/*
+ * Reacts on extension port events
+ * Whenever the driver gets an event from the wiimote that an extension has been
+ * plugged or unplugged, this funtion shall be called. It checks what extensions
+ * are connected and initializes and activates them.
+ * This can be called in atomic context. The initialization is done in a
+ * separate worker thread. The state.lock spinlock must be held by the caller.
+ */
+void wiiext_event(struct wiimote_data *wdata, bool plugged)
+{
+	if (!wdata->ext)
+		return;
+
+	if (wdata->ext->plugged == plugged)
+		return;
+
+	wdata->ext->plugged = plugged;
+
+	if (!plugged)
+		wdata->ext->mp_plugged = false;
+
+	/*
+	 * We need to call wiiext_schedule(wdata->ext) here, however, the
+	 * extension initialization logic is not fully understood and so
+	 * automatic initialization is not supported, yet.
+	 */
+}
+
+/*
+ * Returns true if the current DRM mode should contain extension data and false
+ * if there is no interest in extension data.
+ * All supported extensions send 6 byte extension data so any DRM that contains
+ * extension bytes is fine.
+ * The caller must hold the state.lock spinlock.
+ */
+bool wiiext_active(struct wiimote_data *wdata)
+{
+	if (!wdata->ext)
+		return false;
+
+	return wdata->ext->motionp || wdata->ext->ext_type;
+}
+
+static void handler_motionp(struct wiimote_ext *ext, const __u8 *payload)
+{
+	__s32 x, y, z;
+	bool plugged;
+
+	/*        |   8    7    6    5    4    3 |  2  |  1  |
+	 *   -----+------------------------------+-----+-----+
+	 *    1   |               Yaw Speed <7:0>            |
+	 *    2   |              Roll Speed <7:0>            |
+	 *    3   |             Pitch Speed <7:0>            |
+	 *   -----+------------------------------+-----+-----+
+	 *    4   |       Yaw Speed <13:8>       | Yaw |Pitch|
+	 *   -----+------------------------------+-----+-----+
+	 *    5   |      Roll Speed <13:8>       |Roll | Ext |
+	 *   -----+------------------------------+-----+-----+
+	 *    6   |     Pitch Speed <13:8>       |  1  |  0  |
+	 *   -----+------------------------------+-----+-----+
+	 * The single bits Yaw, Roll, Pitch in the lower right corner specify
+	 * whether the wiimote is rotating fast (0) or slow (1). Speed for slow
+	 * roation is 440 deg/s and for fast rotation 2000 deg/s. To get a
+	 * linear scale we multiply by 2000/440 = ~4.5454 which is 18 for fast
+	 * and 9 for slow.
+	 * If the wiimote is not rotating the sensor reports 2^13 = 8192.
+	 * Ext specifies whether an extension is connected to the motionp.
+	 */
+
+	x = payload[0];
+	y = payload[1];
+	z = payload[2];
+
+	x |= (((__u16)payload[3]) << 6) & 0xff00;
+	y |= (((__u16)payload[4]) << 6) & 0xff00;
+	z |= (((__u16)payload[5]) << 6) & 0xff00;
+
+	x -= 8192;
+	y -= 8192;
+	z -= 8192;
+
+	if (!(payload[3] & 0x02))
+		x *= 18;
+	else
+		x *= 9;
+	if (!(payload[4] & 0x02))
+		y *= 18;
+	else
+		y *= 9;
+	if (!(payload[3] & 0x01))
+		z *= 18;
+	else
+		z *= 9;
+
+	input_report_abs(ext->mp_input, ABS_RX, x);
+	input_report_abs(ext->mp_input, ABS_RY, y);
+	input_report_abs(ext->mp_input, ABS_RZ, z);
+	input_sync(ext->mp_input);
+
+	plugged = payload[5] & 0x01;
+	if (plugged != ext->mp_plugged)
+		ext->mp_plugged = plugged;
+}
+
+static void handler_nunchuck(struct wiimote_ext *ext, const __u8 *payload)
+{
+	__s16 x, y, z, bx, by;
+
+	/*   Byte |   8    7 |  6    5 |  4    3 |  2 |  1  |
+	 *   -----+----------+---------+---------+----+-----+
+	 *    1   |              Button X <7:0>             |
+	 *    2   |              Button Y <7:0>             |
+	 *   -----+----------+---------+---------+----+-----+
+	 *    3   |               Speed X <9:2>             |
+	 *    4   |               Speed Y <9:2>             |
+	 *    5   |               Speed Z <9:2>             |
+	 *   -----+----------+---------+---------+----+-----+
+	 *    6   | Z <1:0>  | Y <1:0> | X <1:0> | BC | BZ  |
+	 *   -----+----------+---------+---------+----+-----+
+	 * Button X/Y is the analog stick. Speed X, Y and Z are the
+	 * accelerometer data in the same format as the wiimote's accelerometer.
+	 * The 6th byte contains the LSBs of the accelerometer data.
+	 * BC and BZ are the C and Z buttons: 0 means pressed
+	 *
+	 * If reported interleaved with motionp, then the layout changes. The
+	 * 5th and 6th byte changes to:
+	 *   -----+-----------------------------------+-----+
+	 *    5   |            Speed Z <9:3>          | EXT |
+	 *   -----+--------+-----+-----+----+----+----+-----+
+	 *    6   |Z <2:1> |Y <1>|X <1>| BC | BZ | 0  |  0  |
+	 *   -----+--------+-----+-----+----+----+----+-----+
+	 * All three accelerometer values lose their LSB. The other data is
+	 * still available but slightly moved.
+	 *
+	 * Center data for button values is 128. Center value for accelerometer
+	 * values it 512 / 0x200
+	 */
+
+	bx = payload[0];
+	by = payload[1];
+	bx -= 128;
+	by -= 128;
+
+	x = payload[2] << 2;
+	y = payload[3] << 2;
+	z = payload[4] << 2;
+
+	if (ext->motionp) {
+		x |= (payload[5] >> 3) & 0x02;
+		y |= (payload[5] >> 4) & 0x02;
+		z &= ~0x4;
+		z |= (payload[5] >> 5) & 0x06;
+	} else {
+		x |= (payload[5] >> 2) & 0x03;
+		y |= (payload[5] >> 4) & 0x03;
+		z |= (payload[5] >> 6) & 0x03;
+	}
+
+	x -= 0x200;
+	y -= 0x200;
+	z -= 0x200;
+
+	input_report_abs(ext->input, ABS_HAT0X, bx);
+	input_report_abs(ext->input, ABS_HAT0Y, by);
+
+	input_report_abs(ext->input, ABS_RX, x);
+	input_report_abs(ext->input, ABS_RY, y);
+	input_report_abs(ext->input, ABS_RZ, z);
+
+	if (ext->motionp) {
+		input_report_key(ext->input,
+			wiiext_keymap[WIIEXT_KEY_Z], !!(payload[5] & 0x04));
+		input_report_key(ext->input,
+			wiiext_keymap[WIIEXT_KEY_C], !!(payload[5] & 0x08));
+	} else {
+		input_report_key(ext->input,
+			wiiext_keymap[WIIEXT_KEY_Z], !!(payload[5] & 0x01));
+		input_report_key(ext->input,
+			wiiext_keymap[WIIEXT_KEY_C], !!(payload[5] & 0x02));
+	}
+
+	input_sync(ext->input);
+}
+
+static void handler_classic(struct wiimote_ext *ext, const __u8 *payload)
+{
+	__s8 rx, ry, lx, ly, lt, rt;
+
+	/*   Byte |  8  |  7  |  6  |  5  |  4  |  3  |  2  |  1  |
+	 *   -----+-----+-----+-----+-----+-----+-----+-----+-----+
+	 *    1   | RX <5:4>  |              LX <5:0>             |
+	 *    2   | RX <3:2>  |              LY <5:0>             |
+	 *   -----+-----+-----+-----+-----------------------------+
+	 *    3   |RX<1>| LT <5:4>  |         RY <5:1>            |
+	 *   -----+-----+-----------+-----------------------------+
+	 *    4   |     LT <3:1>    |         RT <5:1>            |
+	 *   -----+-----+-----+-----+-----+-----+-----+-----+-----+
+	 *    5   | BDR | BDD | BLT | B-  | BH  | B+  | BRT |  1  |
+	 *   -----+-----+-----+-----+-----+-----+-----+-----+-----+
+	 *    6   | BZL | BB  | BY  | BA  | BX  | BZR | BDL | BDU |
+	 *   -----+-----+-----+-----+-----+-----+-----+-----+-----+
+	 * All buttons are 0 if pressed
+	 * RX and RY are right analog stick
+	 * LX and LY are left analog stick
+	 * LT is left trigger, RT is right trigger
+	 * BLT is 0 if left trigger is fully pressed
+	 * BRT is 0 if right trigger is fully pressed
+	 * BDR, BDD, BDL, BDU form the D-Pad with right, down, left, up buttons
+	 * BZL is left Z button and BZR is right Z button
+	 * B-, BH, B+ are +, HOME and - buttons
+	 * BB, BY, BA, BX are A, B, X, Y buttons
+	 * LSB of RX, RY, LT, and RT are not transmitted and always 0.
+	 *
+	 * With motionp enabled it changes slightly to this:
+	 *   Byte |  8  |  7  |  6  |  5  |  4  |  3  |  2  |  1  |
+	 *   -----+-----+-----+-----+-----+-----+-----+-----+-----+
+	 *    1   | RX <4:3>  |          LX <5:1>           | BDU |
+	 *    2   | RX <2:1>  |          LY <5:1>           | BDL |
+	 *   -----+-----+-----+-----+-----------------------+-----+
+	 *    3   |RX<0>| LT <4:3>  |         RY <4:0>            |
+	 *   -----+-----+-----------+-----------------------------+
+	 *    4   |     LT <2:0>    |         RT <4:0>            |
+	 *   -----+-----+-----+-----+-----+-----+-----+-----+-----+
+	 *    5   | BDR | BDD | BLT | B-  | BH  | B+  | BRT | EXT |
+	 *   -----+-----+-----+-----+-----+-----+-----+-----+-----+
+	 *    6   | BZL | BB  | BY  | BA  | BX  | BZR |  0  |  0  |
+	 *   -----+-----+-----+-----+-----+-----+-----+-----+-----+
+	 * Only the LSBs of LX and LY are lost. BDU and BDL are moved, the rest
+	 * is the same as before.
+	 */
+
+	if (ext->motionp) {
+		lx = payload[0] & 0x3e;
+		ly = payload[0] & 0x3e;
+	} else {
+		lx = payload[0] & 0x3f;
+		ly = payload[0] & 0x3f;
+	}
+
+	rx = (payload[0] >> 3) & 0x14;
+	rx |= (payload[1] >> 5) & 0x06;
+	rx |= (payload[2] >> 7) & 0x01;
+	ry = payload[2] & 0x1f;
+
+	rt = payload[3] & 0x1f;
+	lt = (payload[2] >> 2) & 0x18;
+	lt |= (payload[3] >> 5) & 0x07;
+
+	rx <<= 1;
+	ry <<= 1;
+	rt <<= 1;
+	lt <<= 1;
+
+	input_report_abs(ext->input, ABS_HAT1X, lx - 0x20);
+	input_report_abs(ext->input, ABS_HAT1Y, ly - 0x20);
+	input_report_abs(ext->input, ABS_HAT2X, rx - 0x20);
+	input_report_abs(ext->input, ABS_HAT2Y, ry - 0x20);
+	input_report_abs(ext->input, ABS_HAT3X, rt - 0x20);
+	input_report_abs(ext->input, ABS_HAT3Y, lt - 0x20);
+
+	input_report_key(ext->input, wiiext_keymap[WIIEXT_KEY_RIGHT],
+							!!(payload[4] & 0x80));
+	input_report_key(ext->input, wiiext_keymap[WIIEXT_KEY_DOWN],
+							!!(payload[4] & 0x40));
+	input_report_key(ext->input, wiiext_keymap[WIIEXT_KEY_LT],
+							!!(payload[4] & 0x20));
+	input_report_key(ext->input, wiiext_keymap[WIIEXT_KEY_MINUS],
+							!!(payload[4] & 0x10));
+	input_report_key(ext->input, wiiext_keymap[WIIEXT_KEY_HOME],
+							!!(payload[4] & 0x08));
+	input_report_key(ext->input, wiiext_keymap[WIIEXT_KEY_PLUS],
+							!!(payload[4] & 0x04));
+	input_report_key(ext->input, wiiext_keymap[WIIEXT_KEY_RT],
+							!!(payload[4] & 0x02));
+	input_report_key(ext->input, wiiext_keymap[WIIEXT_KEY_ZL],
+							!!(payload[5] & 0x80));
+	input_report_key(ext->input, wiiext_keymap[WIIEXT_KEY_B],
+							!!(payload[5] & 0x40));
+	input_report_key(ext->input, wiiext_keymap[WIIEXT_KEY_Y],
+							!!(payload[5] & 0x20));
+	input_report_key(ext->input, wiiext_keymap[WIIEXT_KEY_A],
+							!!(payload[5] & 0x10));
+	input_report_key(ext->input, wiiext_keymap[WIIEXT_KEY_X],
+							!!(payload[5] & 0x08));
+	input_report_key(ext->input, wiiext_keymap[WIIEXT_KEY_ZR],
+							!!(payload[5] & 0x04));
+
+	if (ext->motionp) {
+		input_report_key(ext->input, wiiext_keymap[WIIEXT_KEY_UP],
+							!!(payload[0] & 0x01));
+		input_report_key(ext->input, wiiext_keymap[WIIEXT_KEY_LEFT],
+							!!(payload[1] & 0x01));
+	} else {
+		input_report_key(ext->input, wiiext_keymap[WIIEXT_KEY_UP],
+							!!(payload[5] & 0x01));
+		input_report_key(ext->input, wiiext_keymap[WIIEXT_KEY_LEFT],
+							!!(payload[5] & 0x02));
+	}
+
+	input_sync(ext->input);
+}
+
+/* call this with state.lock spinlock held */
+void wiiext_handle(struct wiimote_data *wdata, const __u8 *payload)
+{
+	struct wiimote_ext *ext = wdata->ext;
+
+	if (!ext)
+		return;
+
+	if (ext->motionp && (payload[5] & 0x02)) {
+		handler_motionp(ext, payload);
+	} else if (ext->ext_type == WIIEXT_NUNCHUCK) {
+		handler_nunchuck(ext, payload);
+	} else if (ext->ext_type == WIIEXT_CLASSIC) {
+		handler_classic(ext, payload);
+	}
+}
+
+static ssize_t wiiext_show(struct device *dev, struct device_attribute *attr,
+								char *buf)
+{
+	struct wiimote_data *wdata = dev_to_wii(dev);
+	__u8 type = WIIEXT_NONE;
+	bool motionp = false;
+	unsigned long flags;
+
+	spin_lock_irqsave(&wdata->state.lock, flags);
+	if (wdata->ext) {
+		motionp = wdata->ext->motionp;
+		type = wdata->ext->ext_type;
+	}
+	spin_unlock_irqrestore(&wdata->state.lock, flags);
+
+	if (type == WIIEXT_NUNCHUCK) {
+		if (motionp)
+			return sprintf(buf, "motionp+nunchuck\n");
+		else
+			return sprintf(buf, "nunchuck\n");
+	} else if (type == WIIEXT_CLASSIC) {
+		if (motionp)
+			return sprintf(buf, "motionp+classic\n");
+		else
+			return sprintf(buf, "classic\n");
+	} else {
+		if (motionp)
+			return sprintf(buf, "motionp\n");
+		else
+			return sprintf(buf, "none\n");
+	}
+}
+
+static DEVICE_ATTR(extension, S_IRUGO, wiiext_show, NULL);
+
+static int wiiext_input_open(struct input_dev *dev)
+{
+	struct wiimote_ext *ext = input_get_drvdata(dev);
+	int ret;
+
+	ret = hid_hw_open(ext->wdata->hdev);
+	if (ret)
+		return ret;
+
+	atomic_inc(&ext->opened);
+	wiiext_schedule(ext);
+
+	return 0;
+}
+
+static void wiiext_input_close(struct input_dev *dev)
+{
+	struct wiimote_ext *ext = input_get_drvdata(dev);
+
+	atomic_dec(&ext->opened);
+	wiiext_schedule(ext);
+	hid_hw_close(ext->wdata->hdev);
+}
+
+static int wiiext_mp_open(struct input_dev *dev)
+{
+	struct wiimote_ext *ext = input_get_drvdata(dev);
+	int ret;
+
+	ret = hid_hw_open(ext->wdata->hdev);
+	if (ret)
+		return ret;
+
+	atomic_inc(&ext->mp_opened);
+	wiiext_schedule(ext);
+
+	return 0;
+}
+
+static void wiiext_mp_close(struct input_dev *dev)
+{
+	struct wiimote_ext *ext = input_get_drvdata(dev);
+
+	atomic_dec(&ext->mp_opened);
+	wiiext_schedule(ext);
+	hid_hw_close(ext->wdata->hdev);
+}
+
+/* Initializes the extension driver of a wiimote */
+int wiiext_init(struct wiimote_data *wdata)
+{
+	struct wiimote_ext *ext;
+	unsigned long flags;
+	int ret, i;
+
+	ext = kzalloc(sizeof(*ext), GFP_KERNEL);
+	if (!ext)
+		return -ENOMEM;
+
+	ext->wdata = wdata;
+	INIT_WORK(&ext->worker, wiiext_worker);
+
+	ext->input = input_allocate_device();
+	if (!ext->input) {
+		ret = -ENOMEM;
+		goto err_input;
+	}
+
+	input_set_drvdata(ext->input, ext);
+	ext->input->open = wiiext_input_open;
+	ext->input->close = wiiext_input_close;
+	ext->input->dev.parent = &wdata->hdev->dev;
+	ext->input->id.bustype = wdata->hdev->bus;
+	ext->input->id.vendor = wdata->hdev->vendor;
+	ext->input->id.product = wdata->hdev->product;
+	ext->input->id.version = wdata->hdev->version;
+	ext->input->name = WIIMOTE_NAME " Extension";
+
+	set_bit(EV_KEY, ext->input->evbit);
+	for (i = 0; i < WIIEXT_KEY_COUNT; ++i)
+		set_bit(wiiext_keymap[i], ext->input->keybit);
+
+	set_bit(EV_ABS, ext->input->evbit);
+	set_bit(ABS_HAT0X, ext->input->absbit);
+	set_bit(ABS_HAT0Y, ext->input->absbit);
+	set_bit(ABS_HAT1X, ext->input->absbit);
+	set_bit(ABS_HAT1Y, ext->input->absbit);
+	set_bit(ABS_HAT2X, ext->input->absbit);
+	set_bit(ABS_HAT2Y, ext->input->absbit);
+	set_bit(ABS_HAT3X, ext->input->absbit);
+	set_bit(ABS_HAT3Y, ext->input->absbit);
+	input_set_abs_params(ext->input, ABS_HAT0X, -120, 120, 2, 4);
+	input_set_abs_params(ext->input, ABS_HAT0Y, -120, 120, 2, 4);
+	input_set_abs_params(ext->input, ABS_HAT1X, -30, 30, 1, 1);
+	input_set_abs_params(ext->input, ABS_HAT1Y, -30, 30, 1, 1);
+	input_set_abs_params(ext->input, ABS_HAT2X, -30, 30, 1, 1);
+	input_set_abs_params(ext->input, ABS_HAT2Y, -30, 30, 1, 1);
+	input_set_abs_params(ext->input, ABS_HAT3X, -30, 30, 1, 1);
+	input_set_abs_params(ext->input, ABS_HAT3Y, -30, 30, 1, 1);
+	set_bit(ABS_RX, ext->input->absbit);
+	set_bit(ABS_RY, ext->input->absbit);
+	set_bit(ABS_RZ, ext->input->absbit);
+	input_set_abs_params(ext->input, ABS_RX, -500, 500, 2, 4);
+	input_set_abs_params(ext->input, ABS_RY, -500, 500, 2, 4);
+	input_set_abs_params(ext->input, ABS_RZ, -500, 500, 2, 4);
+
+	ret = input_register_device(ext->input);
+	if (ret) {
+		input_free_device(ext->input);
+		goto err_input;
+	}
+
+	ext->mp_input = input_allocate_device();
+	if (!ext->mp_input) {
+		ret = -ENOMEM;
+		goto err_mp;
+	}
+
+	input_set_drvdata(ext->mp_input, ext);
+	ext->mp_input->open = wiiext_mp_open;
+	ext->mp_input->close = wiiext_mp_close;
+	ext->mp_input->dev.parent = &wdata->hdev->dev;
+	ext->mp_input->id.bustype = wdata->hdev->bus;
+	ext->mp_input->id.vendor = wdata->hdev->vendor;
+	ext->mp_input->id.product = wdata->hdev->product;
+	ext->mp_input->id.version = wdata->hdev->version;
+	ext->mp_input->name = WIIMOTE_NAME " Motion+";
+
+	set_bit(EV_ABS, ext->mp_input->evbit);
+	set_bit(ABS_RX, ext->mp_input->absbit);
+	set_bit(ABS_RY, ext->mp_input->absbit);
+	set_bit(ABS_RZ, ext->mp_input->absbit);
+	input_set_abs_params(ext->mp_input, ABS_RX, -160000, 160000, 4, 8);
+	input_set_abs_params(ext->mp_input, ABS_RY, -160000, 160000, 4, 8);
+	input_set_abs_params(ext->mp_input, ABS_RZ, -160000, 160000, 4, 8);
+
+	ret = input_register_device(ext->mp_input);
+	if (ret) {
+		input_free_device(ext->mp_input);
+		goto err_mp;
+	}
+
+	ret = device_create_file(&wdata->hdev->dev, &dev_attr_extension);
+	if (ret)
+		goto err_dev;
+
+	spin_lock_irqsave(&wdata->state.lock, flags);
+	wdata->ext = ext;
+	spin_unlock_irqrestore(&wdata->state.lock, flags);
+
+	return 0;
+
+err_dev:
+	input_unregister_device(ext->mp_input);
+err_mp:
+	input_unregister_device(ext->input);
+err_input:
+	kfree(ext);
+	return ret;
+}
+
+/* Deinitializes the extension driver of a wiimote */
+void wiiext_deinit(struct wiimote_data *wdata)
+{
+	struct wiimote_ext *ext = wdata->ext;
+	unsigned long flags;
+
+	if (!ext)
+		return;
+
+	/*
+	 * We first unset wdata->ext to avoid further input from the wiimote
+	 * core. The worker thread does not access this pointer so it is not
+	 * affected by this.
+	 * We kill the worker after this so it does not get respawned during
+	 * deinitialization.
+	 */
+
+	spin_lock_irqsave(&wdata->state.lock, flags);
+	wdata->ext = NULL;
+	spin_unlock_irqrestore(&wdata->state.lock, flags);
+
+	device_remove_file(&wdata->hdev->dev, &dev_attr_extension);
+	input_unregister_device(ext->mp_input);
+	input_unregister_device(ext->input);
+
+	cancel_work_sync(&ext->worker);
+	kfree(ext);
+}
diff --git a/drivers/hid/hid-wiimote.h b/drivers/hid/hid-wiimote.h
new file mode 100644
index 000000000000..c81dbeb086c5
--- /dev/null
+++ b/drivers/hid/hid-wiimote.h
@@ -0,0 +1,208 @@
+#ifndef __HID_WIIMOTE_H
+#define __HID_WIIMOTE_H
+
+/*
+ * HID driver for Nintendo Wiimote devices
+ * Copyright (c) 2011 David Herrmann
+ */
+
+/*
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ */
+
+#include <linux/completion.h>
+#include <linux/device.h>
+#include <linux/hid.h>
+#include <linux/input.h>
+#include <linux/leds.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/power_supply.h>
+#include <linux/spinlock.h>
+
+#define WIIMOTE_NAME "Nintendo Wii Remote"
+#define WIIMOTE_BUFSIZE 32
+
+#define WIIPROTO_FLAG_LED1		0x01
+#define WIIPROTO_FLAG_LED2		0x02
+#define WIIPROTO_FLAG_LED3		0x04
+#define WIIPROTO_FLAG_LED4		0x08
+#define WIIPROTO_FLAG_RUMBLE		0x10
+#define WIIPROTO_FLAG_ACCEL		0x20
+#define WIIPROTO_FLAG_IR_BASIC		0x40
+#define WIIPROTO_FLAG_IR_EXT		0x80
+#define WIIPROTO_FLAG_IR_FULL		0xc0 /* IR_BASIC | IR_EXT */
+#define WIIPROTO_FLAGS_LEDS (WIIPROTO_FLAG_LED1 | WIIPROTO_FLAG_LED2 | \
+					WIIPROTO_FLAG_LED3 | WIIPROTO_FLAG_LED4)
+#define WIIPROTO_FLAGS_IR (WIIPROTO_FLAG_IR_BASIC | WIIPROTO_FLAG_IR_EXT | \
+							WIIPROTO_FLAG_IR_FULL)
+
+/* return flag for led \num */
+#define WIIPROTO_FLAG_LED(num) (WIIPROTO_FLAG_LED1 << (num - 1))
+
+struct wiimote_buf {
+	__u8 data[HID_MAX_BUFFER_SIZE];
+	size_t size;
+};
+
+struct wiimote_state {
+	spinlock_t lock;
+	__u8 flags;
+	__u8 accel_split[2];
+	__u8 drm;
+
+	/* synchronous cmd requests */
+	struct mutex sync;
+	struct completion ready;
+	int cmd;
+	__u32 opt;
+
+	/* results of synchronous requests */
+	__u8 cmd_battery;
+	__u8 cmd_err;
+	__u8 *cmd_read_buf;
+	__u8 cmd_read_size;
+};
+
+struct wiimote_data {
+	struct hid_device *hdev;
+	struct input_dev *input;
+	struct led_classdev *leds[4];
+	struct input_dev *accel;
+	struct input_dev *ir;
+	struct power_supply battery;
+	struct wiimote_ext *ext;
+	struct wiimote_debug *debug;
+
+	spinlock_t qlock;
+	__u8 head;
+	__u8 tail;
+	struct wiimote_buf outq[WIIMOTE_BUFSIZE];
+	struct work_struct worker;
+
+	struct wiimote_state state;
+};
+
+enum wiiproto_reqs {
+	WIIPROTO_REQ_NULL = 0x0,
+	WIIPROTO_REQ_RUMBLE = 0x10,
+	WIIPROTO_REQ_LED = 0x11,
+	WIIPROTO_REQ_DRM = 0x12,
+	WIIPROTO_REQ_IR1 = 0x13,
+	WIIPROTO_REQ_SREQ = 0x15,
+	WIIPROTO_REQ_WMEM = 0x16,
+	WIIPROTO_REQ_RMEM = 0x17,
+	WIIPROTO_REQ_IR2 = 0x1a,
+	WIIPROTO_REQ_STATUS = 0x20,
+	WIIPROTO_REQ_DATA = 0x21,
+	WIIPROTO_REQ_RETURN = 0x22,
+	WIIPROTO_REQ_DRM_K = 0x30,
+	WIIPROTO_REQ_DRM_KA = 0x31,
+	WIIPROTO_REQ_DRM_KE = 0x32,
+	WIIPROTO_REQ_DRM_KAI = 0x33,
+	WIIPROTO_REQ_DRM_KEE = 0x34,
+	WIIPROTO_REQ_DRM_KAE = 0x35,
+	WIIPROTO_REQ_DRM_KIE = 0x36,
+	WIIPROTO_REQ_DRM_KAIE = 0x37,
+	WIIPROTO_REQ_DRM_E = 0x3d,
+	WIIPROTO_REQ_DRM_SKAI1 = 0x3e,
+	WIIPROTO_REQ_DRM_SKAI2 = 0x3f,
+	WIIPROTO_REQ_MAX
+};
+
+#define dev_to_wii(pdev) hid_get_drvdata(container_of(pdev, struct hid_device, \
+									dev))
+
+extern void wiiproto_req_drm(struct wiimote_data *wdata, __u8 drm);
+extern int wiimote_cmd_write(struct wiimote_data *wdata, __u32 offset,
+						const __u8 *wmem, __u8 size);
+extern ssize_t wiimote_cmd_read(struct wiimote_data *wdata, __u32 offset,
+							__u8 *rmem, __u8 size);
+
+#define wiiproto_req_rreg(wdata, os, sz) \
+				wiiproto_req_rmem((wdata), false, (os), (sz))
+#define wiiproto_req_reeprom(wdata, os, sz) \
+				wiiproto_req_rmem((wdata), true, (os), (sz))
+extern void wiiproto_req_rmem(struct wiimote_data *wdata, bool eeprom,
+						__u32 offset, __u16 size);
+
+#ifdef CONFIG_HID_WIIMOTE_EXT
+
+extern int wiiext_init(struct wiimote_data *wdata);
+extern void wiiext_deinit(struct wiimote_data *wdata);
+extern void wiiext_event(struct wiimote_data *wdata, bool plugged);
+extern bool wiiext_active(struct wiimote_data *wdata);
+extern void wiiext_handle(struct wiimote_data *wdata, const __u8 *payload);
+
+#else
+
+static inline int wiiext_init(void *u) { return 0; }
+static inline void wiiext_deinit(void *u) { }
+static inline void wiiext_event(void *u, bool p) { }
+static inline bool wiiext_active(void *u) { return false; }
+static inline void wiiext_handle(void *u, const __u8 *p) { }
+
+#endif
+
+#ifdef CONFIG_DEBUG_FS
+
+extern int wiidebug_init(struct wiimote_data *wdata);
+extern void wiidebug_deinit(struct wiimote_data *wdata);
+
+#else
+
+static inline int wiidebug_init(void *u) { return 0; }
+static inline void wiidebug_deinit(void *u) { }
+
+#endif
+
+/* requires the state.lock spinlock to be held */
+static inline bool wiimote_cmd_pending(struct wiimote_data *wdata, int cmd,
+								__u32 opt)
+{
+	return wdata->state.cmd == cmd && wdata->state.opt == opt;
+}
+
+/* requires the state.lock spinlock to be held */
+static inline void wiimote_cmd_complete(struct wiimote_data *wdata)
+{
+	wdata->state.cmd = WIIPROTO_REQ_NULL;
+	complete(&wdata->state.ready);
+}
+
+static inline int wiimote_cmd_acquire(struct wiimote_data *wdata)
+{
+	return mutex_lock_interruptible(&wdata->state.sync) ? -ERESTARTSYS : 0;
+}
+
+/* requires the state.lock spinlock to be held */
+static inline void wiimote_cmd_set(struct wiimote_data *wdata, int cmd,
+								__u32 opt)
+{
+	INIT_COMPLETION(wdata->state.ready);
+	wdata->state.cmd = cmd;
+	wdata->state.opt = opt;
+}
+
+static inline void wiimote_cmd_release(struct wiimote_data *wdata)
+{
+	mutex_unlock(&wdata->state.sync);
+}
+
+static inline int wiimote_cmd_wait(struct wiimote_data *wdata)
+{
+	int ret;
+
+	ret = wait_for_completion_interruptible_timeout(&wdata->state.ready, HZ);
+	if (ret < 0)
+		return -ERESTARTSYS;
+	else if (ret == 0)
+		return -EIO;
+	else
+		return 0;
+}
+
+#endif
diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index b403fcef0b86..5bf91dbad59d 100644
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -197,16 +197,24 @@ static int usbhid_restart_out_queue(struct usbhid_device *usbhid)
 {
 	struct hid_device *hid = usb_get_intfdata(usbhid->intf);
 	int kicked;
+	int r;
 
 	if (!hid)
 		return 0;
 
 	if ((kicked = (usbhid->outhead != usbhid->outtail))) {
 		dbg("Kicking head %d tail %d", usbhid->outhead, usbhid->outtail);
+
+		r = usb_autopm_get_interface_async(usbhid->intf);
+		if (r < 0)
+			return r;
+		/* Asynchronously flush queue. */
+		set_bit(HID_OUT_RUNNING, &usbhid->iofl);
 		if (hid_submit_out(hid)) {
 			clear_bit(HID_OUT_RUNNING, &usbhid->iofl);
-			wake_up(&usbhid->wait);
+			usb_autopm_put_interface_async(usbhid->intf);
 		}
+		wake_up(&usbhid->wait);
 	}
 	return kicked;
 }
@@ -215,6 +223,7 @@ static int usbhid_restart_ctrl_queue(struct usbhid_device *usbhid)
 {
 	struct hid_device *hid = usb_get_intfdata(usbhid->intf);
 	int kicked;
+	int r;
 
 	WARN_ON(hid == NULL);
 	if (!hid)
@@ -222,10 +231,17 @@ static int usbhid_restart_ctrl_queue(struct usbhid_device *usbhid)
 
 	if ((kicked = (usbhid->ctrlhead != usbhid->ctrltail))) {
 		dbg("Kicking head %d tail %d", usbhid->ctrlhead, usbhid->ctrltail);
+
+		r = usb_autopm_get_interface_async(usbhid->intf);
+		if (r < 0)
+			return r;
+		/* Asynchronously flush queue. */
+		set_bit(HID_CTRL_RUNNING, &usbhid->iofl);
 		if (hid_submit_ctrl(hid)) {
 			clear_bit(HID_CTRL_RUNNING, &usbhid->iofl);
-			wake_up(&usbhid->wait);
+			usb_autopm_put_interface_async(usbhid->intf);
 		}
+		wake_up(&usbhid->wait);
 	}
 	return kicked;
 }
@@ -304,30 +320,21 @@ static int hid_submit_out(struct hid_device *hid)
 	report = usbhid->out[usbhid->outtail].report;
 	raw_report = usbhid->out[usbhid->outtail].raw_report;
 
-	r = usb_autopm_get_interface_async(usbhid->intf);
-	if (r < 0)
-		return -1;
-
-	/*
-	 * if the device hasn't been woken, we leave the output
-	 * to resume()
-	 */
-	if (!test_bit(HID_REPORTED_IDLE, &usbhid->iofl)) {
-		usbhid->urbout->transfer_buffer_length = ((report->size - 1) >> 3) + 1 + (report->id > 0);
-		usbhid->urbout->dev = hid_to_usb_dev(hid);
-		memcpy(usbhid->outbuf, raw_report, usbhid->urbout->transfer_buffer_length);
-		kfree(raw_report);
+	usbhid->urbout->transfer_buffer_length = ((report->size - 1) >> 3) +
+						 1 + (report->id > 0);
+	usbhid->urbout->dev = hid_to_usb_dev(hid);
+	memcpy(usbhid->outbuf, raw_report,
+	       usbhid->urbout->transfer_buffer_length);
+	kfree(raw_report);
 
-		dbg_hid("submitting out urb\n");
+	dbg_hid("submitting out urb\n");
 
-		if (usb_submit_urb(usbhid->urbout, GFP_ATOMIC)) {
-			hid_err(hid, "usb_submit_urb(out) failed\n");
-			usb_autopm_put_interface_async(usbhid->intf);
-			return -1;
-		}
-		usbhid->last_out = jiffies;
+	r = usb_submit_urb(usbhid->urbout, GFP_ATOMIC);
+	if (r < 0) {
+		hid_err(hid, "usb_submit_urb(out) failed: %d\n", r);
+		return r;
 	}
-
+	usbhid->last_out = jiffies;
 	return 0;
 }
 
@@ -343,50 +350,48 @@ static int hid_submit_ctrl(struct hid_device *hid)
 	raw_report = usbhid->ctrl[usbhid->ctrltail].raw_report;
 	dir = usbhid->ctrl[usbhid->ctrltail].dir;
 
-	r = usb_autopm_get_interface_async(usbhid->intf);
-	if (r < 0)
-		return -1;
-	if (!test_bit(HID_REPORTED_IDLE, &usbhid->iofl)) {
-		len = ((report->size - 1) >> 3) + 1 + (report->id > 0);
-		if (dir == USB_DIR_OUT) {
-			usbhid->urbctrl->pipe = usb_sndctrlpipe(hid_to_usb_dev(hid), 0);
-			usbhid->urbctrl->transfer_buffer_length = len;
-			memcpy(usbhid->ctrlbuf, raw_report, len);
-			kfree(raw_report);
-		} else {
-			int maxpacket, padlen;
-
-			usbhid->urbctrl->pipe = usb_rcvctrlpipe(hid_to_usb_dev(hid), 0);
-			maxpacket = usb_maxpacket(hid_to_usb_dev(hid), usbhid->urbctrl->pipe, 0);
-			if (maxpacket > 0) {
-				padlen = DIV_ROUND_UP(len, maxpacket);
-				padlen *= maxpacket;
-				if (padlen > usbhid->bufsize)
-					padlen = usbhid->bufsize;
-			} else
-				padlen = 0;
-			usbhid->urbctrl->transfer_buffer_length = padlen;
-		}
-		usbhid->urbctrl->dev = hid_to_usb_dev(hid);
-
-		usbhid->cr->bRequestType = USB_TYPE_CLASS | USB_RECIP_INTERFACE | dir;
-		usbhid->cr->bRequest = (dir == USB_DIR_OUT) ? HID_REQ_SET_REPORT : HID_REQ_GET_REPORT;
-		usbhid->cr->wValue = cpu_to_le16(((report->type + 1) << 8) | report->id);
-		usbhid->cr->wIndex = cpu_to_le16(usbhid->ifnum);
-		usbhid->cr->wLength = cpu_to_le16(len);
-
-		dbg_hid("submitting ctrl urb: %s wValue=0x%04x wIndex=0x%04x wLength=%u\n",
-			usbhid->cr->bRequest == HID_REQ_SET_REPORT ? "Set_Report" : "Get_Report",
-			usbhid->cr->wValue, usbhid->cr->wIndex, usbhid->cr->wLength);
-
-		if (usb_submit_urb(usbhid->urbctrl, GFP_ATOMIC)) {
-			usb_autopm_put_interface_async(usbhid->intf);
-			hid_err(hid, "usb_submit_urb(ctrl) failed\n");
-			return -1;
-		}
-		usbhid->last_ctrl = jiffies;
+	len = ((report->size - 1) >> 3) + 1 + (report->id > 0);
+	if (dir == USB_DIR_OUT) {
+		usbhid->urbctrl->pipe = usb_sndctrlpipe(hid_to_usb_dev(hid), 0);
+		usbhid->urbctrl->transfer_buffer_length = len;
+		memcpy(usbhid->ctrlbuf, raw_report, len);
+		kfree(raw_report);
+	} else {
+		int maxpacket, padlen;
+
+		usbhid->urbctrl->pipe = usb_rcvctrlpipe(hid_to_usb_dev(hid), 0);
+		maxpacket = usb_maxpacket(hid_to_usb_dev(hid),
+					  usbhid->urbctrl->pipe, 0);
+		if (maxpacket > 0) {
+			padlen = DIV_ROUND_UP(len, maxpacket);
+			padlen *= maxpacket;
+			if (padlen > usbhid->bufsize)
+				padlen = usbhid->bufsize;
+		} else
+			padlen = 0;
+		usbhid->urbctrl->transfer_buffer_length = padlen;
 	}
-
+	usbhid->urbctrl->dev = hid_to_usb_dev(hid);
+
+	usbhid->cr->bRequestType = USB_TYPE_CLASS | USB_RECIP_INTERFACE | dir;
+	usbhid->cr->bRequest = (dir == USB_DIR_OUT) ? HID_REQ_SET_REPORT :
+						      HID_REQ_GET_REPORT;
+	usbhid->cr->wValue = cpu_to_le16(((report->type + 1) << 8) |
+					 report->id);
+	usbhid->cr->wIndex = cpu_to_le16(usbhid->ifnum);
+	usbhid->cr->wLength = cpu_to_le16(len);
+
+	dbg_hid("submitting ctrl urb: %s wValue=0x%04x wIndex=0x%04x wLength=%u\n",
+		usbhid->cr->bRequest == HID_REQ_SET_REPORT ? "Set_Report" :
+							     "Get_Report",
+		usbhid->cr->wValue, usbhid->cr->wIndex, usbhid->cr->wLength);
+
+	r = usb_submit_urb(usbhid->urbctrl, GFP_ATOMIC);
+	if (r < 0) {
+		hid_err(hid, "usb_submit_urb(ctrl) failed: %d\n", r);
+		return r;
+	}
+	usbhid->last_ctrl = jiffies;
 	return 0;
 }
 
@@ -423,11 +428,8 @@ static void hid_irq_out(struct urb *urb)
 	else
 		usbhid->outtail = (usbhid->outtail + 1) & (HID_OUTPUT_FIFO_SIZE - 1);
 
-	if (usbhid->outhead != usbhid->outtail) {
-		if (hid_submit_out(hid)) {
-			clear_bit(HID_OUT_RUNNING, &usbhid->iofl);
-			wake_up(&usbhid->wait);
-		}
+	if (usbhid->outhead != usbhid->outtail && !hid_submit_out(hid)) {
+		/* Successfully submitted next urb in queue */
 		spin_unlock_irqrestore(&usbhid->lock, flags);
 		return;
 	}
@@ -474,13 +476,9 @@ static void hid_ctrl(struct urb *urb)
 	else
 		usbhid->ctrltail = (usbhid->ctrltail + 1) & (HID_CONTROL_FIFO_SIZE - 1);
 
-	if (usbhid->ctrlhead != usbhid->ctrltail) {
-		if (hid_submit_ctrl(hid)) {
-			clear_bit(HID_CTRL_RUNNING, &usbhid->iofl);
-			wake_up(&usbhid->wait);
-		}
+	if (usbhid->ctrlhead != usbhid->ctrltail && !hid_submit_ctrl(hid)) {
+		/* Successfully submitted next urb in queue */
 		spin_unlock(&usbhid->lock);
-		usb_autopm_put_interface_async(usbhid->intf);
 		return;
 	}
 
@@ -515,9 +513,23 @@ static void __usbhid_submit_report(struct hid_device *hid, struct hid_report *re
 		usbhid->out[usbhid->outhead].report = report;
 		usbhid->outhead = head;
 
+		/* Try to awake from autosuspend... */
+		if (usb_autopm_get_interface_async(usbhid->intf) < 0)
+			return;
+
+		/*
+		 * But if still suspended, leave urb enqueued, don't submit.
+		 * Submission will occur if/when resume() drains the queue.
+		 */
+		if (test_bit(HID_REPORTED_IDLE, &usbhid->iofl))
+			return;
+
 		if (!test_and_set_bit(HID_OUT_RUNNING, &usbhid->iofl)) {
-			if (hid_submit_out(hid))
+			if (hid_submit_out(hid)) {
 				clear_bit(HID_OUT_RUNNING, &usbhid->iofl);
+				usb_autopm_put_interface_async(usbhid->intf);
+			}
+			wake_up(&usbhid->wait);
 		} else {
 			/*
 			 * the queue is known to run
@@ -549,9 +561,23 @@ static void __usbhid_submit_report(struct hid_device *hid, struct hid_report *re
 	usbhid->ctrl[usbhid->ctrlhead].dir = dir;
 	usbhid->ctrlhead = head;
 
+	/* Try to awake from autosuspend... */
+	if (usb_autopm_get_interface_async(usbhid->intf) < 0)
+		return;
+
+	/*
+	 * If already suspended, leave urb enqueued, but don't submit.
+	 * Submission will occur if/when resume() drains the queue.
+	 */
+	if (test_bit(HID_REPORTED_IDLE, &usbhid->iofl))
+		return;
+
 	if (!test_and_set_bit(HID_CTRL_RUNNING, &usbhid->iofl)) {
-		if (hid_submit_ctrl(hid))
+		if (hid_submit_ctrl(hid)) {
 			clear_bit(HID_CTRL_RUNNING, &usbhid->iofl);
+			usb_autopm_put_interface_async(usbhid->intf);
+		}
+		wake_up(&usbhid->wait);
 	} else {
 		/*
 		 * the queue is known to run
@@ -576,6 +602,30 @@ void usbhid_submit_report(struct hid_device *hid, struct hid_report *report, uns
 }
 EXPORT_SYMBOL_GPL(usbhid_submit_report);
 
+/* Workqueue routine to send requests to change LEDs */
+static void hid_led(struct work_struct *work)
+{
+	struct usbhid_device *usbhid =
+		container_of(work, struct usbhid_device, led_work);
+	struct hid_device *hid = usbhid->hid;
+	struct hid_field *field;
+	unsigned long flags;
+
+	field = hidinput_get_led_field(hid);
+	if (!field) {
+		hid_warn(hid, "LED event field not found\n");
+		return;
+	}
+
+	spin_lock_irqsave(&usbhid->lock, flags);
+	if (!test_bit(HID_DISCONNECTED, &usbhid->iofl)) {
+		usbhid->ledcount = hidinput_count_leds(hid);
+		hid_dbg(usbhid->hid, "New ledcount = %u\n", usbhid->ledcount);
+		__usbhid_submit_report(hid, field->report, USB_DIR_OUT);
+	}
+	spin_unlock_irqrestore(&usbhid->lock, flags);
+}
+
 static int usb_hidinput_input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
 {
 	struct hid_device *hid = input_get_drvdata(dev);
@@ -595,17 +645,15 @@ static int usb_hidinput_input_event(struct input_dev *dev, unsigned int type, un
 		return -1;
 	}
 
+	spin_lock_irqsave(&usbhid->lock, flags);
 	hid_set_field(field, offset, value);
-	if (value) {
-		spin_lock_irqsave(&usbhid->lock, flags);
-		usbhid->ledcount++;
-		spin_unlock_irqrestore(&usbhid->lock, flags);
-	} else {
-		spin_lock_irqsave(&usbhid->lock, flags);
-		usbhid->ledcount--;
-		spin_unlock_irqrestore(&usbhid->lock, flags);
-	}
-	usbhid_submit_report(hid, field->report, USB_DIR_OUT);
+	spin_unlock_irqrestore(&usbhid->lock, flags);
+
+	/*
+	 * Defer performing requested LED action.
+	 * This is more likely gather all LED changes into a single URB.
+	 */
+	schedule_work(&usbhid->led_work);
 
 	return 0;
 }
@@ -1100,7 +1148,7 @@ static void usbhid_stop(struct hid_device *hid)
 		return;
 
 	clear_bit(HID_STARTED, &usbhid->iofl);
-	spin_lock_irq(&usbhid->lock);	/* Sync with error handler */
+	spin_lock_irq(&usbhid->lock);	/* Sync with error and led handlers */
 	set_bit(HID_DISCONNECTED, &usbhid->iofl);
 	spin_unlock_irq(&usbhid->lock);
 	usb_kill_urb(usbhid->urbin);
@@ -1234,6 +1282,8 @@ static int usbhid_probe(struct usb_interface *intf, const struct usb_device_id *
 	setup_timer(&usbhid->io_retry, hid_retry_timeout, (unsigned long) hid);
 	spin_lock_init(&usbhid->lock);
 
+	INIT_WORK(&usbhid->led_work, hid_led);
+
 	ret = hid_add_device(hid);
 	if (ret) {
 		if (ret != -ENODEV)
@@ -1266,6 +1316,7 @@ static void hid_cancel_delayed_stuff(struct usbhid_device *usbhid)
 {
 	del_timer_sync(&usbhid->io_retry);
 	cancel_work_sync(&usbhid->reset_work);
+	cancel_work_sync(&usbhid->led_work);
 }
 
 static void hid_cease_io(struct usbhid_device *usbhid)
@@ -1367,16 +1418,6 @@ static int hid_suspend(struct usb_interface *intf, pm_message_t message)
 			return -EIO;
 	}
 
-	if (!ignoreled && PMSG_IS_AUTO(message)) {
-		spin_lock_irq(&usbhid->lock);
-		if (test_bit(HID_LED_ON, &usbhid->iofl)) {
-			spin_unlock_irq(&usbhid->lock);
-			usbhid_mark_busy(usbhid);
-			return -EBUSY;
-		}
-		spin_unlock_irq(&usbhid->lock);
-	}
-
 	hid_cancel_delayed_stuff(usbhid);
 	hid_cease_io(usbhid);
 
diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c
index 5028d60a22a1..c831af937481 100644
--- a/drivers/hid/usbhid/hid-quirks.c
+++ b/drivers/hid/usbhid/hid-quirks.c
@@ -47,6 +47,7 @@ static const struct hid_blacklist {
 
 	{ USB_VENDOR_ID_AFATECH, USB_DEVICE_ID_AFATECH_AF9016, HID_QUIRK_FULLSPEED_INTERVAL },
 
+	{ USB_VENDOR_ID_EMS, USB_DEVICE_ID_EMS_TRIO_LINKER_PLUS_II, HID_QUIRK_MULTI_INPUT },
 	{ USB_VENDOR_ID_ETURBOTOUCH, USB_DEVICE_ID_ETURBOTOUCH, HID_QUIRK_MULTI_INPUT },
 	{ USB_VENDOR_ID_GREENASIA, USB_DEVICE_ID_GREENASIA_DUAL_USB_JOYPAD, HID_QUIRK_MULTI_INPUT },
 	{ USB_VENDOR_ID_PANTHERLORD, USB_DEVICE_ID_PANTHERLORD_TWIN_USB_JOYSTICK, HID_QUIRK_MULTI_INPUT | HID_QUIRK_SKIP_OUTPUT_REPORTS },
@@ -67,6 +68,9 @@ static const struct hid_blacklist {
 	{ USB_VENDOR_ID_CH, USB_DEVICE_ID_CH_AXIS_295, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_DMI, USB_DEVICE_ID_DMI_ENC, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_ELO, USB_DEVICE_ID_ELO_TS2700, HID_QUIRK_NOGET },
+	{ USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN, HID_QUIRK_NO_INIT_REPORTS },
+	{ USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN1, HID_QUIRK_NO_INIT_REPORTS },
+	{ USB_VENDOR_ID_PIXART, USB_DEVICE_ID_PIXART_OPTICAL_TOUCH_SCREEN2, HID_QUIRK_NO_INIT_REPORTS },
 	{ USB_VENDOR_ID_PRODIGE, USB_DEVICE_ID_PRODIGE_CORDLESS, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_QUANTA, USB_DEVICE_ID_PIXART_IMAGING_INC_OPTICAL_TOUCH_SCREEN, HID_QUIRK_NOGET },
 	{ USB_VENDOR_ID_SUN, USB_DEVICE_ID_RARITAN_KVM_DONGLE, HID_QUIRK_NOGET },
diff --git a/drivers/hid/usbhid/usbhid.h b/drivers/hid/usbhid/usbhid.h
index 1673cac93d77..cb8f703efde5 100644
--- a/drivers/hid/usbhid/usbhid.h
+++ b/drivers/hid/usbhid/usbhid.h
@@ -55,7 +55,6 @@ struct usb_interface *usbhid_find_interface(int minor);
 #define HID_STARTED		8
 #define HID_REPORTED_IDLE	9
 #define HID_KEYS_PRESSED	10
-#define HID_LED_ON		11
 
 /*
  * USB-specific HID struct, to be pointed to
@@ -97,6 +96,8 @@ struct usbhid_device {
 	struct work_struct reset_work;                                  /* Task context for resets */
 	wait_queue_head_t wait;						/* For sleeping */
 	int ledcount;							/* counting the number of active leds */
+
+	struct work_struct led_work;					/* Task context for setting LEDs */
 };
 
 #define	hid_to_usb_dev(hid_dev) \
diff --git a/drivers/hid/usbhid/usbkbd.c b/drivers/hid/usbhid/usbkbd.c
index bc445d7e3bf5..796086980f4a 100644
--- a/drivers/hid/usbhid/usbkbd.c
+++ b/drivers/hid/usbhid/usbkbd.c
@@ -64,6 +64,32 @@ static const unsigned char usb_kbd_keycode[256] = {
 	150,158,159,128,136,177,178,176,142,152,173,140
 };
 
+
+/**
+ * struct usb_kbd - state of each attached keyboard
+ * @dev:	input device associated with this keyboard
+ * @usbdev:	usb device associated with this keyboard
+ * @old:	data received in the past from the @irq URB representing which
+ *		keys were pressed. By comparing with the current list of keys
+ *		that are pressed, we are able to see key releases.
+ * @irq:	URB for receiving a list of keys that are pressed when a
+ *		new key is pressed or a key that was pressed is released.
+ * @led:	URB for sending LEDs (e.g. numlock, ...)
+ * @newleds:	data that will be sent with the @led URB representing which LEDs
+ 		should be on
+ * @name:	Name of the keyboard. @dev's name field points to this buffer
+ * @phys:	Physical path of the keyboard. @dev's phys field points to this
+ *		buffer
+ * @new:	Buffer for the @irq URB
+ * @cr:		Control request for @led URB
+ * @leds:	Buffer for the @led URB
+ * @new_dma:	DMA address for @irq URB
+ * @leds_dma:	DMA address for @led URB
+ * @leds_lock:	spinlock that protects @leds, @newleds, and @led_urb_submitted
+ * @led_urb_submitted: indicates whether @led is in progress, i.e. it has been
+ *		submitted and its completion handler has not returned yet
+ *		without	resubmitting @led
+ */
 struct usb_kbd {
 	struct input_dev *dev;
 	struct usb_device *usbdev;
@@ -78,6 +104,10 @@ struct usb_kbd {
 	unsigned char *leds;
 	dma_addr_t new_dma;
 	dma_addr_t leds_dma;
+	
+	spinlock_t leds_lock;
+	bool led_urb_submitted;
+
 };
 
 static void usb_kbd_irq(struct urb *urb)
@@ -136,44 +166,66 @@ resubmit:
 static int usb_kbd_event(struct input_dev *dev, unsigned int type,
 			 unsigned int code, int value)
 {
+	unsigned long flags;
 	struct usb_kbd *kbd = input_get_drvdata(dev);
 
 	if (type != EV_LED)
 		return -1;
 
+	spin_lock_irqsave(&kbd->leds_lock, flags);
 	kbd->newleds = (!!test_bit(LED_KANA,    dev->led) << 3) | (!!test_bit(LED_COMPOSE, dev->led) << 3) |
 		       (!!test_bit(LED_SCROLLL, dev->led) << 2) | (!!test_bit(LED_CAPSL,   dev->led) << 1) |
 		       (!!test_bit(LED_NUML,    dev->led));
 
-	if (kbd->led->status == -EINPROGRESS)
+	if (kbd->led_urb_submitted){
+		spin_unlock_irqrestore(&kbd->leds_lock, flags);
 		return 0;
+	}
 
-	if (*(kbd->leds) == kbd->newleds)
+	if (*(kbd->leds) == kbd->newleds){
+		spin_unlock_irqrestore(&kbd->leds_lock, flags);
 		return 0;
+	}
 
 	*(kbd->leds) = kbd->newleds;
+	
 	kbd->led->dev = kbd->usbdev;
 	if (usb_submit_urb(kbd->led, GFP_ATOMIC))
 		pr_err("usb_submit_urb(leds) failed\n");
-
+	else
+		kbd->led_urb_submitted = true;
+	
+	spin_unlock_irqrestore(&kbd->leds_lock, flags);
+	
 	return 0;
 }
 
 static void usb_kbd_led(struct urb *urb)
 {
+	unsigned long flags;
 	struct usb_kbd *kbd = urb->context;
 
 	if (urb->status)
 		hid_warn(urb->dev, "led urb status %d received\n",
 			 urb->status);
 
-	if (*(kbd->leds) == kbd->newleds)
+	spin_lock_irqsave(&kbd->leds_lock, flags);
+
+	if (*(kbd->leds) == kbd->newleds){
+		kbd->led_urb_submitted = false;
+		spin_unlock_irqrestore(&kbd->leds_lock, flags);
 		return;
+	}
 
 	*(kbd->leds) = kbd->newleds;
+	
 	kbd->led->dev = kbd->usbdev;
-	if (usb_submit_urb(kbd->led, GFP_ATOMIC))
+	if (usb_submit_urb(kbd->led, GFP_ATOMIC)){
 		hid_err(urb->dev, "usb_submit_urb(leds) failed\n");
+		kbd->led_urb_submitted = false;
+	}
+	spin_unlock_irqrestore(&kbd->leds_lock, flags);
+	
 }
 
 static int usb_kbd_open(struct input_dev *dev)
@@ -252,6 +304,7 @@ static int usb_kbd_probe(struct usb_interface *iface,
 
 	kbd->usbdev = dev;
 	kbd->dev = input_dev;
+	spin_lock_init(&kbd->leds_lock);
 
 	if (dev->manufacturer)
 		strlcpy(kbd->name, dev->manufacturer, sizeof(kbd->name));
@@ -334,6 +387,7 @@ static void usb_kbd_disconnect(struct usb_interface *intf)
 	if (kbd) {
 		usb_kill_urb(kbd->irq);
 		input_unregister_device(kbd->dev);
+		usb_kill_urb(kbd->led);
 		usb_kbd_free_mem(interface_to_usbdev(intf), kbd);
 		kfree(kbd);
 	}
diff --git a/drivers/hv/hv_kvp.c b/drivers/hv/hv_kvp.c
index 89f52440fcf4..0e8343f585bb 100644
--- a/drivers/hv/hv_kvp.c
+++ b/drivers/hv/hv_kvp.c
@@ -212,11 +212,13 @@ kvp_respond_to_host(char *key, char *value, int error)
 	 * The windows host expects the key/value pair to be encoded
 	 * in utf16.
 	 */
-	keylen = utf8s_to_utf16s(key_name, strlen(key_name),
-				(wchar_t *)kvp_data->data.key);
+	keylen = utf8s_to_utf16s(key_name, strlen(key_name), UTF16_HOST_ENDIAN,
+				(wchar_t *) kvp_data->data.key,
+				HV_KVP_EXCHANGE_MAX_KEY_SIZE / 2);
 	kvp_data->data.key_size = 2*(keylen + 1); /* utf16 encoding */
-	valuelen = utf8s_to_utf16s(value, strlen(value),
-				(wchar_t *)kvp_data->data.value);
+	valuelen = utf8s_to_utf16s(value, strlen(value), UTF16_HOST_ENDIAN,
+				(wchar_t *) kvp_data->data.value,
+				HV_KVP_EXCHANGE_MAX_VALUE_SIZE / 2);
 	kvp_data->data.value_size = 2*(valuelen + 1); /* utf16 encoding */
 
 	kvp_data->data.value_type = REG_SZ; /* all our values are strings */
diff --git a/drivers/i2c/busses/i2c-puv3.c b/drivers/i2c/busses/i2c-puv3.c
index fac673940849..93709fbe30eb 100644
--- a/drivers/i2c/busses/i2c-puv3.c
+++ b/drivers/i2c/busses/i2c-puv3.c
@@ -276,8 +276,6 @@ static int puv3_i2c_resume(struct platform_device *dev)
 #define puv3_i2c_resume NULL
 #endif
 
-MODULE_ALIAS("platform:puv3_i2c");
-
 static struct platform_driver puv3_i2c_driver = {
 	.probe		= puv3_i2c_probe,
 	.remove		= __devexit_p(puv3_i2c_remove),
@@ -289,18 +287,8 @@ static struct platform_driver puv3_i2c_driver = {
 	}
 };
 
-static int __init puv3_i2c_init(void)
-{
-	return platform_driver_register(&puv3_i2c_driver);
-}
-
-static void __exit puv3_i2c_exit(void)
-{
-	platform_driver_unregister(&puv3_i2c_driver);
-}
-
-module_init(puv3_i2c_init);
-module_exit(puv3_i2c_exit);
+module_platform_driver(puv3_i2c_driver);
 
 MODULE_DESCRIPTION("PKUnity v3 I2C driver");
 MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:puv3_i2c");
diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c
index 46b6500c5478..6381604696d3 100644
--- a/drivers/i2c/busses/i2c-tegra.c
+++ b/drivers/i2c/busses/i2c-tegra.c
@@ -558,7 +558,7 @@ static const struct i2c_algorithm tegra_i2c_algo = {
 	.functionality	= tegra_i2c_func,
 };
 
-static int tegra_i2c_probe(struct platform_device *pdev)
+static int __devinit tegra_i2c_probe(struct platform_device *pdev)
 {
 	struct tegra_i2c_dev *i2c_dev;
 	struct tegra_i2c_platform_data *pdata = pdev->dev.platform_data;
@@ -636,7 +636,10 @@ static int tegra_i2c_probe(struct platform_device *pdev)
 			i2c_dev->bus_clk_rate = be32_to_cpup(prop);
 	}
 
-	if (pdev->id == 3)
+	if (pdev->dev.of_node)
+		i2c_dev->is_dvc = of_device_is_compatible(pdev->dev.of_node,
+						"nvidia,tegra20-i2c-dvc");
+	else if (pdev->id == 3)
 		i2c_dev->is_dvc = 1;
 	init_completion(&i2c_dev->msg_complete);
 
@@ -690,7 +693,7 @@ err_iounmap:
 	return ret;
 }
 
-static int tegra_i2c_remove(struct platform_device *pdev)
+static int __devexit tegra_i2c_remove(struct platform_device *pdev)
 {
 	struct tegra_i2c_dev *i2c_dev = platform_get_drvdata(pdev);
 	i2c_del_adapter(&i2c_dev->adapter);
@@ -742,6 +745,7 @@ static int tegra_i2c_resume(struct platform_device *pdev)
 /* Match table for of_platform binding */
 static const struct of_device_id tegra_i2c_of_match[] __devinitconst = {
 	{ .compatible = "nvidia,tegra20-i2c", },
+	{ .compatible = "nvidia,tegra20-i2c-dvc", },
 	{},
 };
 MODULE_DEVICE_TABLE(of, tegra_i2c_of_match);
diff --git a/drivers/ide/at91_ide.c b/drivers/ide/at91_ide.c
index 6dede8f366c5..41d415529479 100644
--- a/drivers/ide/at91_ide.c
+++ b/drivers/ide/at91_ide.c
@@ -314,7 +314,7 @@ static int __init at91_ide_probe(struct platform_device *pdev)
 	apply_timings(board->chipselect, 0, ide_timing_find_mode(XFER_PIO_0), 0);
 
 	/* with GPIO interrupt we have to do quirks in handler */
-	if (board->irq_pin >= PIN_BASE)
+	if (gpio_is_valid(board->irq_pin))
 		host->irq_handler = at91_irq_handler;
 
 	host->ports[0]->select_data = board->chipselect;
diff --git a/drivers/input/evdev.c b/drivers/input/evdev.c
index 4cf25347b015..76457d50bc34 100644
--- a/drivers/input/evdev.c
+++ b/drivers/input/evdev.c
@@ -369,7 +369,7 @@ static int evdev_fetch_next_event(struct evdev_client *client,
 
 	spin_lock_irq(&client->buffer_lock);
 
-	have_event = client->head != client->tail;
+	have_event = client->packet_head != client->tail;
 	if (have_event) {
 		*event = client->buffer[client->tail++];
 		client->tail &= client->bufsize - 1;
@@ -391,14 +391,13 @@ static ssize_t evdev_read(struct file *file, char __user *buffer,
 	if (count < input_event_size())
 		return -EINVAL;
 
-	if (client->packet_head == client->tail && evdev->exist &&
-	    (file->f_flags & O_NONBLOCK))
-		return -EAGAIN;
-
-	retval = wait_event_interruptible(evdev->wait,
-		client->packet_head != client->tail || !evdev->exist);
-	if (retval)
-		return retval;
+	if (!(file->f_flags & O_NONBLOCK)) {
+		retval = wait_event_interruptible(evdev->wait,
+				client->packet_head != client->tail ||
+				!evdev->exist);
+		if (retval)
+			return retval;
+	}
 
 	if (!evdev->exist)
 		return -ENODEV;
@@ -412,6 +411,9 @@ static ssize_t evdev_read(struct file *file, char __user *buffer,
 		retval += input_event_size();
 	}
 
+	if (retval == 0 && (file->f_flags & O_NONBLOCK))
+		return -EAGAIN;
+
 	return retval;
 }
 
diff --git a/drivers/input/input-polldev.c b/drivers/input/input-polldev.c
index 7dfe1009fae0..7f161d93203c 100644
--- a/drivers/input/input-polldev.c
+++ b/drivers/input/input-polldev.c
@@ -84,10 +84,12 @@ static ssize_t input_polldev_set_poll(struct device *dev,
 {
 	struct input_polled_dev *polldev = dev_get_drvdata(dev);
 	struct input_dev *input = polldev->input;
-	unsigned long interval;
+	unsigned int interval;
+	int err;
 
-	if (strict_strtoul(buf, 0, &interval))
-		return -EINVAL;
+	err = kstrtouint(buf, 0, &interval);
+	if (err)
+		return err;
 
 	if (interval < polldev->poll_interval_min)
 		return -EINVAL;
diff --git a/drivers/input/keyboard/Kconfig b/drivers/input/keyboard/Kconfig
index 615c21f2a553..cdc385b2cf7d 100644
--- a/drivers/input/keyboard/Kconfig
+++ b/drivers/input/keyboard/Kconfig
@@ -221,6 +221,22 @@ config KEYBOARD_TCA6416
 	  To compile this driver as a module, choose M here: the
 	  module will be called tca6416_keypad.
 
+config KEYBOARD_TCA8418
+	tristate "TCA8418 Keypad Support"
+	depends on I2C
+	help
+	  This driver implements basic keypad functionality
+	  for keys connected through TCA8418 keypad decoder.
+
+	  Say Y here if your device has keys connected to
+	  TCA8418 keypad decoder.
+
+	  If enabled the complete TCA8418 device will be managed through
+	  this driver.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called tca8418_keypad.
+
 config KEYBOARD_MATRIX
 	tristate "GPIO driven matrix keypad support"
 	depends on GENERIC_GPIO
@@ -425,9 +441,10 @@ config KEYBOARD_PMIC8XXX
 
 config KEYBOARD_SAMSUNG
 	tristate "Samsung keypad support"
-	depends on SAMSUNG_DEV_KEYPAD
+	depends on HAVE_CLK
 	help
-	  Say Y here if you want to use the Samsung keypad.
+	  Say Y here if you want to use the keypad on your Samsung mobile
+	  device.
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called samsung-keypad.
diff --git a/drivers/input/keyboard/Makefile b/drivers/input/keyboard/Makefile
index ddde0fd476f7..df7061f12918 100644
--- a/drivers/input/keyboard/Makefile
+++ b/drivers/input/keyboard/Makefile
@@ -16,6 +16,7 @@ obj-$(CONFIG_KEYBOARD_EP93XX)		+= ep93xx_keypad.o
 obj-$(CONFIG_KEYBOARD_GPIO)		+= gpio_keys.o
 obj-$(CONFIG_KEYBOARD_GPIO_POLLED)	+= gpio_keys_polled.o
 obj-$(CONFIG_KEYBOARD_TCA6416)		+= tca6416-keypad.o
+obj-$(CONFIG_KEYBOARD_TCA8418)		+= tca8418_keypad.o
 obj-$(CONFIG_KEYBOARD_HIL)		+= hil_kbd.o
 obj-$(CONFIG_KEYBOARD_HIL_OLD)		+= hilkbd.o
 obj-$(CONFIG_KEYBOARD_IMX)		+= imx_keypad.o
diff --git a/drivers/input/keyboard/adp5520-keys.c b/drivers/input/keyboard/adp5520-keys.c
index 3db8006dac3a..e9e8674dfda1 100644
--- a/drivers/input/keyboard/adp5520-keys.c
+++ b/drivers/input/keyboard/adp5520-keys.c
@@ -202,18 +202,7 @@ static struct platform_driver adp5520_keys_driver = {
 	.probe		= adp5520_keys_probe,
 	.remove		= __devexit_p(adp5520_keys_remove),
 };
-
-static int __init adp5520_keys_init(void)
-{
-	return platform_driver_register(&adp5520_keys_driver);
-}
-module_init(adp5520_keys_init);
-
-static void __exit adp5520_keys_exit(void)
-{
-	platform_driver_unregister(&adp5520_keys_driver);
-}
-module_exit(adp5520_keys_exit);
+module_platform_driver(adp5520_keys_driver);
 
 MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
 MODULE_DESCRIPTION("Keys ADP5520 Driver");
diff --git a/drivers/input/keyboard/amikbd.c b/drivers/input/keyboard/amikbd.c
index 79172af164f2..6df5f6aa7908 100644
--- a/drivers/input/keyboard/amikbd.c
+++ b/drivers/input/keyboard/amikbd.c
@@ -259,19 +259,6 @@ static struct platform_driver amikbd_driver = {
 		.owner	= THIS_MODULE,
 	},
 };
-
-static int __init amikbd_init(void)
-{
-	return platform_driver_probe(&amikbd_driver, amikbd_probe);
-}
-
-module_init(amikbd_init);
-
-static void __exit amikbd_exit(void)
-{
-	platform_driver_unregister(&amikbd_driver);
-}
-
-module_exit(amikbd_exit);
+module_platform_driver(amikbd_driver);
 
 MODULE_ALIAS("platform:amiga-keyboard");
diff --git a/drivers/input/keyboard/atkbd.c b/drivers/input/keyboard/atkbd.c
index 19cfc0cf558c..e05a2e7073c6 100644
--- a/drivers/input/keyboard/atkbd.c
+++ b/drivers/input/keyboard/atkbd.c
@@ -1305,7 +1305,7 @@ static ssize_t atkbd_show_extra(struct atkbd *atkbd, char *buf)
 static ssize_t atkbd_set_extra(struct atkbd *atkbd, const char *buf, size_t count)
 {
 	struct input_dev *old_dev, *new_dev;
-	unsigned long value;
+	unsigned int value;
 	int err;
 	bool old_extra;
 	unsigned char old_set;
@@ -1313,7 +1313,11 @@ static ssize_t atkbd_set_extra(struct atkbd *atkbd, const char *buf, size_t coun
 	if (!atkbd->write)
 		return -EIO;
 
-	if (strict_strtoul(buf, 10, &value) || value > 1)
+	err = kstrtouint(buf, 10, &value);
+	if (err)
+		return err;
+
+	if (value > 1)
 		return -EINVAL;
 
 	if (atkbd->extra != value) {
@@ -1389,11 +1393,15 @@ static ssize_t atkbd_show_scroll(struct atkbd *atkbd, char *buf)
 static ssize_t atkbd_set_scroll(struct atkbd *atkbd, const char *buf, size_t count)
 {
 	struct input_dev *old_dev, *new_dev;
-	unsigned long value;
+	unsigned int value;
 	int err;
 	bool old_scroll;
 
-	if (strict_strtoul(buf, 10, &value) || value > 1)
+	err = kstrtouint(buf, 10, &value);
+	if (err)
+		return err;
+
+	if (value > 1)
 		return -EINVAL;
 
 	if (atkbd->scroll != value) {
@@ -1433,7 +1441,7 @@ static ssize_t atkbd_show_set(struct atkbd *atkbd, char *buf)
 static ssize_t atkbd_set_set(struct atkbd *atkbd, const char *buf, size_t count)
 {
 	struct input_dev *old_dev, *new_dev;
-	unsigned long value;
+	unsigned int value;
 	int err;
 	unsigned char old_set;
 	bool old_extra;
@@ -1441,7 +1449,11 @@ static ssize_t atkbd_set_set(struct atkbd *atkbd, const char *buf, size_t count)
 	if (!atkbd->write)
 		return -EIO;
 
-	if (strict_strtoul(buf, 10, &value) || (value != 2 && value != 3))
+	err = kstrtouint(buf, 10, &value);
+	if (err)
+		return err;
+
+	if (value != 2 && value != 3)
 		return -EINVAL;
 
 	if (atkbd->set != value) {
@@ -1484,14 +1496,18 @@ static ssize_t atkbd_show_softrepeat(struct atkbd *atkbd, char *buf)
 static ssize_t atkbd_set_softrepeat(struct atkbd *atkbd, const char *buf, size_t count)
 {
 	struct input_dev *old_dev, *new_dev;
-	unsigned long value;
+	unsigned int value;
 	int err;
 	bool old_softrepeat, old_softraw;
 
 	if (!atkbd->write)
 		return -EIO;
 
-	if (strict_strtoul(buf, 10, &value) || value > 1)
+	err = kstrtouint(buf, 10, &value);
+	if (err)
+		return err;
+
+	if (value > 1)
 		return -EINVAL;
 
 	if (atkbd->softrepeat != value) {
@@ -1534,11 +1550,15 @@ static ssize_t atkbd_show_softraw(struct atkbd *atkbd, char *buf)
 static ssize_t atkbd_set_softraw(struct atkbd *atkbd, const char *buf, size_t count)
 {
 	struct input_dev *old_dev, *new_dev;
-	unsigned long value;
+	unsigned int value;
 	int err;
 	bool old_softraw;
 
-	if (strict_strtoul(buf, 10, &value) || value > 1)
+	err = kstrtouint(buf, 10, &value);
+	if (err)
+		return err;
+
+	if (value > 1)
 		return -EINVAL;
 
 	if (atkbd->softraw != value) {
diff --git a/drivers/input/keyboard/bf54x-keys.c b/drivers/input/keyboard/bf54x-keys.c
index 7d989603f875..8eb9116e0a5f 100644
--- a/drivers/input/keyboard/bf54x-keys.c
+++ b/drivers/input/keyboard/bf54x-keys.c
@@ -384,7 +384,7 @@ static int bfin_kpad_resume(struct platform_device *pdev)
 # define bfin_kpad_resume  NULL
 #endif
 
-struct platform_driver bfin_kpad_device_driver = {
+static struct platform_driver bfin_kpad_device_driver = {
 	.driver		= {
 		.name	= DRV_NAME,
 		.owner	= THIS_MODULE,
@@ -394,19 +394,7 @@ struct platform_driver bfin_kpad_device_driver = {
 	.suspend	= bfin_kpad_suspend,
 	.resume		= bfin_kpad_resume,
 };
-
-static int __init bfin_kpad_init(void)
-{
-	return platform_driver_register(&bfin_kpad_device_driver);
-}
-
-static void __exit bfin_kpad_exit(void)
-{
-	platform_driver_unregister(&bfin_kpad_device_driver);
-}
-
-module_init(bfin_kpad_init);
-module_exit(bfin_kpad_exit);
+module_platform_driver(bfin_kpad_device_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
diff --git a/drivers/input/keyboard/davinci_keyscan.c b/drivers/input/keyboard/davinci_keyscan.c
index 9d82b3aeff5e..469825247552 100644
--- a/drivers/input/keyboard/davinci_keyscan.c
+++ b/drivers/input/keyboard/davinci_keyscan.c
@@ -328,18 +328,7 @@ static struct platform_driver davinci_ks_driver = {
 	},
 	.remove	= __devexit_p(davinci_ks_remove),
 };
-
-static int __init davinci_ks_init(void)
-{
-	return platform_driver_probe(&davinci_ks_driver, davinci_ks_probe);
-}
-module_init(davinci_ks_init);
-
-static void __exit davinci_ks_exit(void)
-{
-	platform_driver_unregister(&davinci_ks_driver);
-}
-module_exit(davinci_ks_exit);
+module_platform_driver(davinci_ks_driver);
 
 MODULE_AUTHOR("Miguel Aguilar");
 MODULE_DESCRIPTION("Texas Instruments DaVinci Key Scan Driver");
diff --git a/drivers/input/keyboard/ep93xx_keypad.c b/drivers/input/keyboard/ep93xx_keypad.c
index 4662c5da8018..0ba69f3fcb52 100644
--- a/drivers/input/keyboard/ep93xx_keypad.c
+++ b/drivers/input/keyboard/ep93xx_keypad.c
@@ -390,19 +390,7 @@ static struct platform_driver ep93xx_keypad_driver = {
 	.suspend	= ep93xx_keypad_suspend,
 	.resume		= ep93xx_keypad_resume,
 };
-
-static int __init ep93xx_keypad_init(void)
-{
-	return platform_driver_register(&ep93xx_keypad_driver);
-}
-
-static void __exit ep93xx_keypad_exit(void)
-{
-	platform_driver_unregister(&ep93xx_keypad_driver);
-}
-
-module_init(ep93xx_keypad_init);
-module_exit(ep93xx_keypad_exit);
+module_platform_driver(ep93xx_keypad_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("H Hartley Sweeten <hsweeten@visionengravers.com>");
diff --git a/drivers/input/keyboard/gpio_keys_polled.c b/drivers/input/keyboard/gpio_keys_polled.c
index 4c17aff20657..20c8ab172214 100644
--- a/drivers/input/keyboard/gpio_keys_polled.c
+++ b/drivers/input/keyboard/gpio_keys_polled.c
@@ -241,19 +241,7 @@ static struct platform_driver gpio_keys_polled_driver = {
 		.owner	= THIS_MODULE,
 	},
 };
-
-static int __init gpio_keys_polled_init(void)
-{
-	return platform_driver_register(&gpio_keys_polled_driver);
-}
-
-static void __exit gpio_keys_polled_exit(void)
-{
-	platform_driver_unregister(&gpio_keys_polled_driver);
-}
-
-module_init(gpio_keys_polled_init);
-module_exit(gpio_keys_polled_exit);
+module_platform_driver(gpio_keys_polled_driver);
 
 MODULE_LICENSE("GPL v2");
 MODULE_AUTHOR("Gabor Juhos <juhosg@openwrt.org>");
diff --git a/drivers/input/keyboard/imx_keypad.c b/drivers/input/keyboard/imx_keypad.c
index ccebd2d09151..fb87b3bcadb9 100644
--- a/drivers/input/keyboard/imx_keypad.c
+++ b/drivers/input/keyboard/imx_keypad.c
@@ -619,19 +619,7 @@ static struct platform_driver imx_keypad_driver = {
 	.probe		= imx_keypad_probe,
 	.remove		= __devexit_p(imx_keypad_remove),
 };
-
-static int __init imx_keypad_init(void)
-{
-	return platform_driver_register(&imx_keypad_driver);
-}
-
-static void __exit imx_keypad_exit(void)
-{
-	platform_driver_unregister(&imx_keypad_driver);
-}
-
-module_init(imx_keypad_init);
-module_exit(imx_keypad_exit);
+module_platform_driver(imx_keypad_driver);
 
 MODULE_AUTHOR("Alberto Panizzo <maramaopercheseimorto@gmail.com>");
 MODULE_DESCRIPTION("IMX Keypad Port Driver");
diff --git a/drivers/input/keyboard/jornada680_kbd.c b/drivers/input/keyboard/jornada680_kbd.c
index 7197c5698747..24f3ea01c4d5 100644
--- a/drivers/input/keyboard/jornada680_kbd.c
+++ b/drivers/input/keyboard/jornada680_kbd.c
@@ -260,19 +260,7 @@ static struct platform_driver jornada680kbd_driver = {
 	.probe	= jornada680kbd_probe,
 	.remove	= __devexit_p(jornada680kbd_remove),
 };
-
-static int __init jornada680kbd_init(void)
-{
-	return platform_driver_register(&jornada680kbd_driver);
-}
-
-static void __exit jornada680kbd_exit(void)
-{
-	platform_driver_unregister(&jornada680kbd_driver);
-}
-
-module_init(jornada680kbd_init);
-module_exit(jornada680kbd_exit);
+module_platform_driver(jornada680kbd_driver);
 
 MODULE_AUTHOR("Kristoffer Ericson <kristoffer.ericson@gmail.com>");
 MODULE_DESCRIPTION("HP Jornada 620/660/680/690 Keyboard Driver");
diff --git a/drivers/input/keyboard/jornada720_kbd.c b/drivers/input/keyboard/jornada720_kbd.c
index 0aa6740e60d0..eeafc30b207b 100644
--- a/drivers/input/keyboard/jornada720_kbd.c
+++ b/drivers/input/keyboard/jornada720_kbd.c
@@ -174,16 +174,4 @@ static struct platform_driver jornada720_kbd_driver = {
 	.probe   = jornada720_kbd_probe,
 	.remove  = __devexit_p(jornada720_kbd_remove),
 };
-
-static int __init jornada720_kbd_init(void)
-{
-	return platform_driver_register(&jornada720_kbd_driver);
-}
-
-static void __exit jornada720_kbd_exit(void)
-{
-	platform_driver_unregister(&jornada720_kbd_driver);
-}
-
-module_init(jornada720_kbd_init);
-module_exit(jornada720_kbd_exit);
+module_platform_driver(jornada720_kbd_driver);
diff --git a/drivers/input/keyboard/lm8323.c b/drivers/input/keyboard/lm8323.c
index 82d1dc8badd5..21823bfc7911 100644
--- a/drivers/input/keyboard/lm8323.c
+++ b/drivers/input/keyboard/lm8323.c
@@ -545,13 +545,12 @@ static ssize_t lm8323_pwm_store_time(struct device *dev,
 {
 	struct led_classdev *led_cdev = dev_get_drvdata(dev);
 	struct lm8323_pwm *pwm = cdev_to_pwm(led_cdev);
-	int ret;
-	unsigned long time;
+	int ret, time;
 
-	ret = strict_strtoul(buf, 10, &time);
+	ret = kstrtoint(buf, 10, &time);
 	/* Numbers only, please. */
 	if (ret)
-		return -EINVAL;
+		return ret;
 
 	pwm->fade_time = time;
 
@@ -613,9 +612,9 @@ static ssize_t lm8323_set_disable(struct device *dev,
 {
 	struct lm8323_chip *lm = dev_get_drvdata(dev);
 	int ret;
-	unsigned long i;
+	unsigned int i;
 
-	ret = strict_strtoul(buf, 10, &i);
+	ret = kstrtouint(buf, 10, &i);
 
 	mutex_lock(&lm->lock);
 	lm->kp_enabled = !i;
diff --git a/drivers/input/keyboard/matrix_keypad.c b/drivers/input/keyboard/matrix_keypad.c
index e2ae657717ea..9b223d73de32 100644
--- a/drivers/input/keyboard/matrix_keypad.c
+++ b/drivers/input/keyboard/matrix_keypad.c
@@ -496,19 +496,7 @@ static struct platform_driver matrix_keypad_driver = {
 #endif
 	},
 };
-
-static int __init matrix_keypad_init(void)
-{
-	return platform_driver_register(&matrix_keypad_driver);
-}
-
-static void __exit matrix_keypad_exit(void)
-{
-	platform_driver_unregister(&matrix_keypad_driver);
-}
-
-module_init(matrix_keypad_init);
-module_exit(matrix_keypad_exit);
+module_platform_driver(matrix_keypad_driver);
 
 MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
 MODULE_DESCRIPTION("GPIO Driven Matrix Keypad Driver");
diff --git a/drivers/input/keyboard/nomadik-ske-keypad.c b/drivers/input/keyboard/nomadik-ske-keypad.c
index fcdec5e2b297..5a71e55c9c54 100644
--- a/drivers/input/keyboard/nomadik-ske-keypad.c
+++ b/drivers/input/keyboard/nomadik-ske-keypad.c
@@ -379,7 +379,7 @@ static const struct dev_pm_ops ske_keypad_dev_pm_ops = {
 };
 #endif
 
-struct platform_driver ske_keypad_driver = {
+static struct platform_driver ske_keypad_driver = {
 	.driver = {
 		.name = "nmk-ske-keypad",
 		.owner  = THIS_MODULE,
@@ -390,18 +390,7 @@ struct platform_driver ske_keypad_driver = {
 	.probe = ske_keypad_probe,
 	.remove = __devexit_p(ske_keypad_remove),
 };
-
-static int __init ske_keypad_init(void)
-{
-	return platform_driver_probe(&ske_keypad_driver, ske_keypad_probe);
-}
-module_init(ske_keypad_init);
-
-static void __exit ske_keypad_exit(void)
-{
-	platform_driver_unregister(&ske_keypad_driver);
-}
-module_exit(ske_keypad_exit);
+module_platform_driver(ske_keypad_driver);
 
 MODULE_LICENSE("GPL v2");
 MODULE_AUTHOR("Naveen Kumar <naveen.gaddipati@stericsson.com> / Sundar Iyer <sundar.iyer@stericsson.com>");
diff --git a/drivers/input/keyboard/omap-keypad.c b/drivers/input/keyboard/omap-keypad.c
index 323bcdfff248..6b630d9d3dff 100644
--- a/drivers/input/keyboard/omap-keypad.c
+++ b/drivers/input/keyboard/omap-keypad.c
@@ -473,20 +473,7 @@ static struct platform_driver omap_kp_driver = {
 		.owner	= THIS_MODULE,
 	},
 };
-
-static int __init omap_kp_init(void)
-{
-	printk(KERN_INFO "OMAP Keypad Driver\n");
-	return platform_driver_register(&omap_kp_driver);
-}
-
-static void __exit omap_kp_exit(void)
-{
-	platform_driver_unregister(&omap_kp_driver);
-}
-
-module_init(omap_kp_init);
-module_exit(omap_kp_exit);
+module_platform_driver(omap_kp_driver);
 
 MODULE_AUTHOR("Timo Teräs");
 MODULE_DESCRIPTION("OMAP Keypad Driver");
diff --git a/drivers/input/keyboard/omap4-keypad.c b/drivers/input/keyboard/omap4-keypad.c
index c51a3c4a7feb..d5c5d77f4b82 100644
--- a/drivers/input/keyboard/omap4-keypad.c
+++ b/drivers/input/keyboard/omap4-keypad.c
@@ -335,18 +335,7 @@ static struct platform_driver omap4_keypad_driver = {
 		.owner	= THIS_MODULE,
 	},
 };
-
-static int __init omap4_keypad_init(void)
-{
-	return platform_driver_register(&omap4_keypad_driver);
-}
-module_init(omap4_keypad_init);
-
-static void __exit omap4_keypad_exit(void)
-{
-	platform_driver_unregister(&omap4_keypad_driver);
-}
-module_exit(omap4_keypad_exit);
+module_platform_driver(omap4_keypad_driver);
 
 MODULE_AUTHOR("Texas Instruments");
 MODULE_DESCRIPTION("OMAP4 Keypad Driver");
diff --git a/drivers/input/keyboard/opencores-kbd.c b/drivers/input/keyboard/opencores-kbd.c
index 1f1a5563f60a..abe728c7b88e 100644
--- a/drivers/input/keyboard/opencores-kbd.c
+++ b/drivers/input/keyboard/opencores-kbd.c
@@ -163,18 +163,7 @@ static struct platform_driver opencores_kbd_device_driver = {
 		.name = "opencores-kbd",
 	},
 };
-
-static int __init opencores_kbd_init(void)
-{
-	return platform_driver_register(&opencores_kbd_device_driver);
-}
-module_init(opencores_kbd_init);
-
-static void __exit opencores_kbd_exit(void)
-{
-	platform_driver_unregister(&opencores_kbd_device_driver);
-}
-module_exit(opencores_kbd_exit);
+module_platform_driver(opencores_kbd_device_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Javier Herrero <jherrero@hvsistemas.es>");
diff --git a/drivers/input/keyboard/pmic8xxx-keypad.c b/drivers/input/keyboard/pmic8xxx-keypad.c
index e7cc51d0fb34..01a1c9f8a383 100644
--- a/drivers/input/keyboard/pmic8xxx-keypad.c
+++ b/drivers/input/keyboard/pmic8xxx-keypad.c
@@ -780,18 +780,7 @@ static struct platform_driver pmic8xxx_kp_driver = {
 		.pm = &pm8xxx_kp_pm_ops,
 	},
 };
-
-static int __init pmic8xxx_kp_init(void)
-{
-	return platform_driver_register(&pmic8xxx_kp_driver);
-}
-module_init(pmic8xxx_kp_init);
-
-static void __exit pmic8xxx_kp_exit(void)
-{
-	platform_driver_unregister(&pmic8xxx_kp_driver);
-}
-module_exit(pmic8xxx_kp_exit);
+module_platform_driver(pmic8xxx_kp_driver);
 
 MODULE_LICENSE("GPL v2");
 MODULE_DESCRIPTION("PMIC8XXX keypad driver");
diff --git a/drivers/input/keyboard/pxa27x_keypad.c b/drivers/input/keyboard/pxa27x_keypad.c
index eca6ae63de14..29fe1b2be1c1 100644
--- a/drivers/input/keyboard/pxa27x_keypad.c
+++ b/drivers/input/keyboard/pxa27x_keypad.c
@@ -602,19 +602,7 @@ static struct platform_driver pxa27x_keypad_driver = {
 #endif
 	},
 };
-
-static int __init pxa27x_keypad_init(void)
-{
-	return platform_driver_register(&pxa27x_keypad_driver);
-}
-
-static void __exit pxa27x_keypad_exit(void)
-{
-	platform_driver_unregister(&pxa27x_keypad_driver);
-}
-
-module_init(pxa27x_keypad_init);
-module_exit(pxa27x_keypad_exit);
+module_platform_driver(pxa27x_keypad_driver);
 
 MODULE_DESCRIPTION("PXA27x Keypad Controller Driver");
 MODULE_LICENSE("GPL");
diff --git a/drivers/input/keyboard/pxa930_rotary.c b/drivers/input/keyboard/pxa930_rotary.c
index 35451bf780c7..d7f1134b789e 100644
--- a/drivers/input/keyboard/pxa930_rotary.c
+++ b/drivers/input/keyboard/pxa930_rotary.c
@@ -195,18 +195,7 @@ static struct platform_driver pxa930_rotary_driver = {
 	.probe		= pxa930_rotary_probe,
 	.remove		= __devexit_p(pxa930_rotary_remove),
 };
-
-static int __init pxa930_rotary_init(void)
-{
-	return platform_driver_register(&pxa930_rotary_driver);
-}
-module_init(pxa930_rotary_init);
-
-static void __exit pxa930_rotary_exit(void)
-{
-	platform_driver_unregister(&pxa930_rotary_driver);
-}
-module_exit(pxa930_rotary_exit);
+module_platform_driver(pxa930_rotary_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Driver for PXA93x Enhanced Rotary Controller");
diff --git a/drivers/input/keyboard/samsung-keypad.c b/drivers/input/keyboard/samsung-keypad.c
index f689f49e3109..17ba7f9f80f3 100644
--- a/drivers/input/keyboard/samsung-keypad.c
+++ b/drivers/input/keyboard/samsung-keypad.c
@@ -20,9 +20,13 @@
 #include <linux/io.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
+#include <linux/pm.h>
+#include <linux/pm_runtime.h>
 #include <linux/slab.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
 #include <linux/sched.h>
-#include <plat/keypad.h>
+#include <linux/input/samsung-keypad.h>
 
 #define SAMSUNG_KEYIFCON			0x00
 #define SAMSUNG_KEYIFSTSCLR			0x04
@@ -63,36 +67,33 @@ enum samsung_keypad_type {
 
 struct samsung_keypad {
 	struct input_dev *input_dev;
+	struct platform_device *pdev;
 	struct clk *clk;
 	void __iomem *base;
 	wait_queue_head_t wait;
 	bool stopped;
+	bool wake_enabled;
 	int irq;
+	enum samsung_keypad_type type;
 	unsigned int row_shift;
 	unsigned int rows;
 	unsigned int cols;
 	unsigned int row_state[SAMSUNG_MAX_COLS];
+#ifdef CONFIG_OF
+	int row_gpios[SAMSUNG_MAX_ROWS];
+	int col_gpios[SAMSUNG_MAX_COLS];
+#endif
 	unsigned short keycodes[];
 };
 
-static int samsung_keypad_is_s5pv210(struct device *dev)
-{
-	struct platform_device *pdev = to_platform_device(dev);
-	enum samsung_keypad_type type =
-		platform_get_device_id(pdev)->driver_data;
-
-	return type == KEYPAD_TYPE_S5PV210;
-}
-
 static void samsung_keypad_scan(struct samsung_keypad *keypad,
 				unsigned int *row_state)
 {
-	struct device *dev = keypad->input_dev->dev.parent;
 	unsigned int col;
 	unsigned int val;
 
 	for (col = 0; col < keypad->cols; col++) {
-		if (samsung_keypad_is_s5pv210(dev)) {
+		if (keypad->type == KEYPAD_TYPE_S5PV210) {
 			val = S5PV210_KEYIFCOLEN_MASK;
 			val &= ~(1 << col) << 8;
 		} else {
@@ -158,6 +159,8 @@ static irqreturn_t samsung_keypad_irq(int irq, void *dev_id)
 	unsigned int val;
 	bool key_down;
 
+	pm_runtime_get_sync(&keypad->pdev->dev);
+
 	do {
 		val = readl(keypad->base + SAMSUNG_KEYIFSTSCLR);
 		/* Clear interrupt. */
@@ -172,6 +175,8 @@ static irqreturn_t samsung_keypad_irq(int irq, void *dev_id)
 
 	} while (key_down && !keypad->stopped);
 
+	pm_runtime_put_sync(&keypad->pdev->dev);
+
 	return IRQ_HANDLED;
 }
 
@@ -179,6 +184,8 @@ static void samsung_keypad_start(struct samsung_keypad *keypad)
 {
 	unsigned int val;
 
+	pm_runtime_get_sync(&keypad->pdev->dev);
+
 	/* Tell IRQ thread that it may poll the device. */
 	keypad->stopped = false;
 
@@ -191,12 +198,16 @@ static void samsung_keypad_start(struct samsung_keypad *keypad)
 
 	/* KEYIFCOL reg clear. */
 	writel(0, keypad->base + SAMSUNG_KEYIFCOL);
+
+	pm_runtime_put_sync(&keypad->pdev->dev);
 }
 
 static void samsung_keypad_stop(struct samsung_keypad *keypad)
 {
 	unsigned int val;
 
+	pm_runtime_get_sync(&keypad->pdev->dev);
+
 	/* Signal IRQ thread to stop polling and disable the handler. */
 	keypad->stopped = true;
 	wake_up(&keypad->wait);
@@ -217,6 +228,8 @@ static void samsung_keypad_stop(struct samsung_keypad *keypad)
 	 * re-enable the handler.
 	 */
 	enable_irq(keypad->irq);
+
+	pm_runtime_put_sync(&keypad->pdev->dev);
 }
 
 static int samsung_keypad_open(struct input_dev *input_dev)
@@ -235,6 +248,126 @@ static void samsung_keypad_close(struct input_dev *input_dev)
 	samsung_keypad_stop(keypad);
 }
 
+#ifdef CONFIG_OF
+static struct samsung_keypad_platdata *samsung_keypad_parse_dt(
+				struct device *dev)
+{
+	struct samsung_keypad_platdata *pdata;
+	struct matrix_keymap_data *keymap_data;
+	uint32_t *keymap, num_rows = 0, num_cols = 0;
+	struct device_node *np = dev->of_node, *key_np;
+	unsigned int key_count = 0;
+
+	pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
+	if (!pdata) {
+		dev_err(dev, "could not allocate memory for platform data\n");
+		return NULL;
+	}
+
+	of_property_read_u32(np, "samsung,keypad-num-rows", &num_rows);
+	of_property_read_u32(np, "samsung,keypad-num-columns", &num_cols);
+	if (!num_rows || !num_cols) {
+		dev_err(dev, "number of keypad rows/columns not specified\n");
+		return NULL;
+	}
+	pdata->rows = num_rows;
+	pdata->cols = num_cols;
+
+	keymap_data = devm_kzalloc(dev, sizeof(*keymap_data), GFP_KERNEL);
+	if (!keymap_data) {
+		dev_err(dev, "could not allocate memory for keymap data\n");
+		return NULL;
+	}
+	pdata->keymap_data = keymap_data;
+
+	for_each_child_of_node(np, key_np)
+		key_count++;
+
+	keymap_data->keymap_size = key_count;
+	keymap = devm_kzalloc(dev, sizeof(uint32_t) * key_count, GFP_KERNEL);
+	if (!keymap) {
+		dev_err(dev, "could not allocate memory for keymap\n");
+		return NULL;
+	}
+	keymap_data->keymap = keymap;
+
+	for_each_child_of_node(np, key_np) {
+		u32 row, col, key_code;
+		of_property_read_u32(key_np, "keypad,row", &row);
+		of_property_read_u32(key_np, "keypad,column", &col);
+		of_property_read_u32(key_np, "linux,code", &key_code);
+		*keymap++ = KEY(row, col, key_code);
+	}
+
+	if (of_get_property(np, "linux,input-no-autorepeat", NULL))
+		pdata->no_autorepeat = true;
+	if (of_get_property(np, "linux,input-wakeup", NULL))
+		pdata->wakeup = true;
+
+	return pdata;
+}
+
+static void samsung_keypad_parse_dt_gpio(struct device *dev,
+				struct samsung_keypad *keypad)
+{
+	struct device_node *np = dev->of_node;
+	int gpio, ret, row, col;
+
+	for (row = 0; row < keypad->rows; row++) {
+		gpio = of_get_named_gpio(np, "row-gpios", row);
+		keypad->row_gpios[row] = gpio;
+		if (!gpio_is_valid(gpio)) {
+			dev_err(dev, "keypad row[%d]: invalid gpio %d\n",
+					row, gpio);
+			continue;
+		}
+
+		ret = gpio_request(gpio, "keypad-row");
+		if (ret)
+			dev_err(dev, "keypad row[%d] gpio request failed\n",
+					row);
+	}
+
+	for (col = 0; col < keypad->cols; col++) {
+		gpio = of_get_named_gpio(np, "col-gpios", col);
+		keypad->col_gpios[col] = gpio;
+		if (!gpio_is_valid(gpio)) {
+			dev_err(dev, "keypad column[%d]: invalid gpio %d\n",
+					col, gpio);
+			continue;
+		}
+
+		ret = gpio_request(gpio, "keypad-col");
+		if (ret)
+			dev_err(dev, "keypad column[%d] gpio request failed\n",
+					col);
+	}
+}
+
+static void samsung_keypad_dt_gpio_free(struct samsung_keypad *keypad)
+{
+	int cnt;
+
+	for (cnt = 0; cnt < keypad->rows; cnt++)
+		if (gpio_is_valid(keypad->row_gpios[cnt]))
+			gpio_free(keypad->row_gpios[cnt]);
+
+	for (cnt = 0; cnt < keypad->cols; cnt++)
+		if (gpio_is_valid(keypad->col_gpios[cnt]))
+			gpio_free(keypad->col_gpios[cnt]);
+}
+#else
+static
+struct samsung_keypad_platdata *samsung_keypad_parse_dt(struct device *dev)
+{
+	return NULL;
+}
+
+static void samsung_keypad_dt_gpio_free(struct samsung_keypad *keypad)
+{
+}
+#endif
+
 static int __devinit samsung_keypad_probe(struct platform_device *pdev)
 {
 	const struct samsung_keypad_platdata *pdata;
@@ -246,7 +379,10 @@ static int __devinit samsung_keypad_probe(struct platform_device *pdev)
 	unsigned int keymap_size;
 	int error;
 
-	pdata = pdev->dev.platform_data;
+	if (pdev->dev.of_node)
+		pdata = samsung_keypad_parse_dt(&pdev->dev);
+	else
+		pdata = pdev->dev.platform_data;
 	if (!pdata) {
 		dev_err(&pdev->dev, "no platform data defined\n");
 		return -EINVAL;
@@ -298,11 +434,23 @@ static int __devinit samsung_keypad_probe(struct platform_device *pdev)
 	}
 
 	keypad->input_dev = input_dev;
+	keypad->pdev = pdev;
 	keypad->row_shift = row_shift;
 	keypad->rows = pdata->rows;
 	keypad->cols = pdata->cols;
+	keypad->stopped = true;
 	init_waitqueue_head(&keypad->wait);
 
+	if (pdev->dev.of_node) {
+#ifdef CONFIG_OF
+		samsung_keypad_parse_dt_gpio(&pdev->dev, keypad);
+		keypad->type = of_device_is_compatible(pdev->dev.of_node,
+					"samsung,s5pv210-keypad");
+#endif
+	} else {
+		keypad->type = platform_get_device_id(pdev)->driver_data;
+	}
+
 	input_dev->name = pdev->name;
 	input_dev->id.bustype = BUS_HOST;
 	input_dev->dev.parent = &pdev->dev;
@@ -337,18 +485,29 @@ static int __devinit samsung_keypad_probe(struct platform_device *pdev)
 		goto err_put_clk;
 	}
 
+	device_init_wakeup(&pdev->dev, pdata->wakeup);
+	platform_set_drvdata(pdev, keypad);
+	pm_runtime_enable(&pdev->dev);
+
 	error = input_register_device(keypad->input_dev);
 	if (error)
 		goto err_free_irq;
 
-	device_init_wakeup(&pdev->dev, pdata->wakeup);
-	platform_set_drvdata(pdev, keypad);
+	if (pdev->dev.of_node) {
+		devm_kfree(&pdev->dev, (void *)pdata->keymap_data->keymap);
+		devm_kfree(&pdev->dev, (void *)pdata->keymap_data);
+		devm_kfree(&pdev->dev, (void *)pdata);
+	}
 	return 0;
 
 err_free_irq:
 	free_irq(keypad->irq, keypad);
+	pm_runtime_disable(&pdev->dev);
+	device_init_wakeup(&pdev->dev, 0);
+	platform_set_drvdata(pdev, NULL);
 err_put_clk:
 	clk_put(keypad->clk);
+	samsung_keypad_dt_gpio_free(keypad);
 err_unmap_base:
 	iounmap(keypad->base);
 err_free_mem:
@@ -362,6 +521,7 @@ static int __devexit samsung_keypad_remove(struct platform_device *pdev)
 {
 	struct samsung_keypad *keypad = platform_get_drvdata(pdev);
 
+	pm_runtime_disable(&pdev->dev);
 	device_init_wakeup(&pdev->dev, 0);
 	platform_set_drvdata(pdev, NULL);
 
@@ -374,6 +534,7 @@ static int __devexit samsung_keypad_remove(struct platform_device *pdev)
 	free_irq(keypad->irq, keypad);
 
 	clk_put(keypad->clk);
+	samsung_keypad_dt_gpio_free(keypad);
 
 	iounmap(keypad->base);
 	kfree(keypad);
@@ -381,11 +542,57 @@ static int __devexit samsung_keypad_remove(struct platform_device *pdev)
 	return 0;
 }
 
-#ifdef CONFIG_PM
+#ifdef CONFIG_PM_RUNTIME
+static int samsung_keypad_runtime_suspend(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct samsung_keypad *keypad = platform_get_drvdata(pdev);
+	unsigned int val;
+	int error;
+
+	if (keypad->stopped)
+		return 0;
+
+	/* This may fail on some SoCs due to lack of controller support */
+	error = enable_irq_wake(keypad->irq);
+	if (!error)
+		keypad->wake_enabled = true;
+
+	val = readl(keypad->base + SAMSUNG_KEYIFCON);
+	val |= SAMSUNG_KEYIFCON_WAKEUPEN;
+	writel(val, keypad->base + SAMSUNG_KEYIFCON);
+
+	clk_disable(keypad->clk);
+
+	return 0;
+}
+
+static int samsung_keypad_runtime_resume(struct device *dev)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct samsung_keypad *keypad = platform_get_drvdata(pdev);
+	unsigned int val;
+
+	if (keypad->stopped)
+		return 0;
+
+	clk_enable(keypad->clk);
+
+	val = readl(keypad->base + SAMSUNG_KEYIFCON);
+	val &= ~SAMSUNG_KEYIFCON_WAKEUPEN;
+	writel(val, keypad->base + SAMSUNG_KEYIFCON);
+
+	if (keypad->wake_enabled)
+		disable_irq_wake(keypad->irq);
+
+	return 0;
+}
+#endif
+
+#ifdef CONFIG_PM_SLEEP
 static void samsung_keypad_toggle_wakeup(struct samsung_keypad *keypad,
 					 bool enable)
 {
-	struct device *dev = keypad->input_dev->dev.parent;
 	unsigned int val;
 
 	clk_enable(keypad->clk);
@@ -393,11 +600,11 @@ static void samsung_keypad_toggle_wakeup(struct samsung_keypad *keypad,
 	val = readl(keypad->base + SAMSUNG_KEYIFCON);
 	if (enable) {
 		val |= SAMSUNG_KEYIFCON_WAKEUPEN;
-		if (device_may_wakeup(dev))
+		if (device_may_wakeup(&keypad->pdev->dev))
 			enable_irq_wake(keypad->irq);
 	} else {
 		val &= ~SAMSUNG_KEYIFCON_WAKEUPEN;
-		if (device_may_wakeup(dev))
+		if (device_may_wakeup(&keypad->pdev->dev))
 			disable_irq_wake(keypad->irq);
 	}
 	writel(val, keypad->base + SAMSUNG_KEYIFCON);
@@ -440,11 +647,23 @@ static int samsung_keypad_resume(struct device *dev)
 
 	return 0;
 }
+#endif
 
 static const struct dev_pm_ops samsung_keypad_pm_ops = {
-	.suspend	= samsung_keypad_suspend,
-	.resume		= samsung_keypad_resume,
+	SET_SYSTEM_SLEEP_PM_OPS(samsung_keypad_suspend, samsung_keypad_resume)
+	SET_RUNTIME_PM_OPS(samsung_keypad_runtime_suspend,
+			   samsung_keypad_runtime_resume, NULL)
 };
+
+#ifdef CONFIG_OF
+static const struct of_device_id samsung_keypad_dt_match[] = {
+	{ .compatible = "samsung,s3c6410-keypad" },
+	{ .compatible = "samsung,s5pv210-keypad" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, samsung_keypad_dt_match);
+#else
+#define samsung_keypad_dt_match NULL
 #endif
 
 static struct platform_device_id samsung_keypad_driver_ids[] = {
@@ -465,27 +684,14 @@ static struct platform_driver samsung_keypad_driver = {
 	.driver		= {
 		.name	= "samsung-keypad",
 		.owner	= THIS_MODULE,
-#ifdef CONFIG_PM
+		.of_match_table = samsung_keypad_dt_match,
 		.pm	= &samsung_keypad_pm_ops,
-#endif
 	},
 	.id_table	= samsung_keypad_driver_ids,
 };
-
-static int __init samsung_keypad_init(void)
-{
-	return platform_driver_register(&samsung_keypad_driver);
-}
-module_init(samsung_keypad_init);
-
-static void __exit samsung_keypad_exit(void)
-{
-	platform_driver_unregister(&samsung_keypad_driver);
-}
-module_exit(samsung_keypad_exit);
+module_platform_driver(samsung_keypad_driver);
 
 MODULE_DESCRIPTION("Samsung keypad driver");
 MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
 MODULE_AUTHOR("Donghwa Lee <dh09.lee@samsung.com>");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:samsung-keypad");
diff --git a/drivers/input/keyboard/sh_keysc.c b/drivers/input/keyboard/sh_keysc.c
index 934aeb583b30..da54ad5db154 100644
--- a/drivers/input/keyboard/sh_keysc.c
+++ b/drivers/input/keyboard/sh_keysc.c
@@ -337,19 +337,7 @@ static struct platform_driver sh_keysc_device_driver = {
 		.pm	= &sh_keysc_dev_pm_ops,
 	}
 };
-
-static int __init sh_keysc_init(void)
-{
-	return platform_driver_register(&sh_keysc_device_driver);
-}
-
-static void __exit sh_keysc_exit(void)
-{
-	platform_driver_unregister(&sh_keysc_device_driver);
-}
-
-module_init(sh_keysc_init);
-module_exit(sh_keysc_exit);
+module_platform_driver(sh_keysc_device_driver);
 
 MODULE_AUTHOR("Magnus Damm");
 MODULE_DESCRIPTION("SuperH KEYSC Keypad Driver");
diff --git a/drivers/input/keyboard/spear-keyboard.c b/drivers/input/keyboard/spear-keyboard.c
index d712dffd2157..c88bd63dc9cc 100644
--- a/drivers/input/keyboard/spear-keyboard.c
+++ b/drivers/input/keyboard/spear-keyboard.c
@@ -326,18 +326,7 @@ static struct platform_driver spear_kbd_driver = {
 #endif
 	},
 };
-
-static int __init spear_kbd_init(void)
-{
-	return platform_driver_register(&spear_kbd_driver);
-}
-module_init(spear_kbd_init);
-
-static void __exit spear_kbd_exit(void)
-{
-	platform_driver_unregister(&spear_kbd_driver);
-}
-module_exit(spear_kbd_exit);
+module_platform_driver(spear_kbd_driver);
 
 MODULE_AUTHOR("Rajeev Kumar");
 MODULE_DESCRIPTION("SPEAr Keyboard Driver");
diff --git a/drivers/input/keyboard/stmpe-keypad.c b/drivers/input/keyboard/stmpe-keypad.c
index ab7610ca10eb..9397cf9c625c 100644
--- a/drivers/input/keyboard/stmpe-keypad.c
+++ b/drivers/input/keyboard/stmpe-keypad.c
@@ -368,18 +368,7 @@ static struct platform_driver stmpe_keypad_driver = {
 	.probe		= stmpe_keypad_probe,
 	.remove		= __devexit_p(stmpe_keypad_remove),
 };
-
-static int __init stmpe_keypad_init(void)
-{
-	return platform_driver_register(&stmpe_keypad_driver);
-}
-module_init(stmpe_keypad_init);
-
-static void __exit stmpe_keypad_exit(void)
-{
-	platform_driver_unregister(&stmpe_keypad_driver);
-}
-module_exit(stmpe_keypad_exit);
+module_platform_driver(stmpe_keypad_driver);
 
 MODULE_LICENSE("GPL v2");
 MODULE_DESCRIPTION("STMPExxxx keypad driver");
diff --git a/drivers/input/keyboard/tc3589x-keypad.c b/drivers/input/keyboard/tc3589x-keypad.c
index f60c9e82f204..2dee3e4e7c6f 100644
--- a/drivers/input/keyboard/tc3589x-keypad.c
+++ b/drivers/input/keyboard/tc3589x-keypad.c
@@ -74,11 +74,13 @@
 
 /**
  * struct tc_keypad - data structure used by keypad driver
+ * @tc3589x:    pointer to tc35893
  * @input:      pointer to input device object
  * @board:      keypad platform device
  * @krow:	number of rows
  * @kcol:	number of coloumns
  * @keymap:     matrix scan code table for keycodes
+ * @keypad_stopped: holds keypad status
  */
 struct tc_keypad {
 	struct tc3589x *tc3589x;
@@ -453,18 +455,7 @@ static struct platform_driver tc3589x_keypad_driver = {
 	.probe	= tc3589x_keypad_probe,
 	.remove	= __devexit_p(tc3589x_keypad_remove),
 };
-
-static int __init tc3589x_keypad_init(void)
-{
-	return platform_driver_register(&tc3589x_keypad_driver);
-}
-module_init(tc3589x_keypad_init);
-
-static void __exit tc3589x_keypad_exit(void)
-{
-	return platform_driver_unregister(&tc3589x_keypad_driver);
-}
-module_exit(tc3589x_keypad_exit);
+module_platform_driver(tc3589x_keypad_driver);
 
 MODULE_LICENSE("GPL v2");
 MODULE_AUTHOR("Jayeeta Banerjee/Sundar Iyer");
diff --git a/drivers/input/keyboard/tca8418_keypad.c b/drivers/input/keyboard/tca8418_keypad.c
new file mode 100644
index 000000000000..958ec107bfbc
--- /dev/null
+++ b/drivers/input/keyboard/tca8418_keypad.c
@@ -0,0 +1,430 @@
+/*
+ * Driver for TCA8418 I2C keyboard
+ *
+ * Copyright (C) 2011 Fuel7, Inc.  All rights reserved.
+ *
+ * Author: Kyle Manna <kyle.manna@fuel7.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License v2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA.
+ *
+ * If you can't comply with GPLv2, alternative licensing terms may be
+ * arranged. Please contact Fuel7, Inc. (http://fuel7.com/) for proprietary
+ * alternative licensing inquiries.
+ */
+
+#include <linux/types.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+#include <linux/workqueue.h>
+#include <linux/gpio.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/input/tca8418_keypad.h>
+
+/* TCA8418 hardware limits */
+#define TCA8418_MAX_ROWS	8
+#define TCA8418_MAX_COLS	10
+
+/* TCA8418 register offsets */
+#define REG_CFG			0x01
+#define REG_INT_STAT		0x02
+#define REG_KEY_LCK_EC		0x03
+#define REG_KEY_EVENT_A		0x04
+#define REG_KEY_EVENT_B		0x05
+#define REG_KEY_EVENT_C		0x06
+#define REG_KEY_EVENT_D		0x07
+#define REG_KEY_EVENT_E		0x08
+#define REG_KEY_EVENT_F		0x09
+#define REG_KEY_EVENT_G		0x0A
+#define REG_KEY_EVENT_H		0x0B
+#define REG_KEY_EVENT_I		0x0C
+#define REG_KEY_EVENT_J		0x0D
+#define REG_KP_LCK_TIMER	0x0E
+#define REG_UNLOCK1		0x0F
+#define REG_UNLOCK2		0x10
+#define REG_GPIO_INT_STAT1	0x11
+#define REG_GPIO_INT_STAT2	0x12
+#define REG_GPIO_INT_STAT3	0x13
+#define REG_GPIO_DAT_STAT1	0x14
+#define REG_GPIO_DAT_STAT2	0x15
+#define REG_GPIO_DAT_STAT3	0x16
+#define REG_GPIO_DAT_OUT1	0x17
+#define REG_GPIO_DAT_OUT2	0x18
+#define REG_GPIO_DAT_OUT3	0x19
+#define REG_GPIO_INT_EN1	0x1A
+#define REG_GPIO_INT_EN2	0x1B
+#define REG_GPIO_INT_EN3	0x1C
+#define REG_KP_GPIO1		0x1D
+#define REG_KP_GPIO2		0x1E
+#define REG_KP_GPIO3		0x1F
+#define REG_GPI_EM1		0x20
+#define REG_GPI_EM2		0x21
+#define REG_GPI_EM3		0x22
+#define REG_GPIO_DIR1		0x23
+#define REG_GPIO_DIR2		0x24
+#define REG_GPIO_DIR3		0x25
+#define REG_GPIO_INT_LVL1	0x26
+#define REG_GPIO_INT_LVL2	0x27
+#define REG_GPIO_INT_LVL3	0x28
+#define REG_DEBOUNCE_DIS1	0x29
+#define REG_DEBOUNCE_DIS2	0x2A
+#define REG_DEBOUNCE_DIS3	0x2B
+#define REG_GPIO_PULL1		0x2C
+#define REG_GPIO_PULL2		0x2D
+#define REG_GPIO_PULL3		0x2E
+
+/* TCA8418 bit definitions */
+#define CFG_AI			BIT(7)
+#define CFG_GPI_E_CFG		BIT(6)
+#define CFG_OVR_FLOW_M		BIT(5)
+#define CFG_INT_CFG		BIT(4)
+#define CFG_OVR_FLOW_IEN	BIT(3)
+#define CFG_K_LCK_IEN		BIT(2)
+#define CFG_GPI_IEN		BIT(1)
+#define CFG_KE_IEN		BIT(0)
+
+#define INT_STAT_CAD_INT	BIT(4)
+#define INT_STAT_OVR_FLOW_INT	BIT(3)
+#define INT_STAT_K_LCK_INT	BIT(2)
+#define INT_STAT_GPI_INT	BIT(1)
+#define INT_STAT_K_INT		BIT(0)
+
+/* TCA8418 register masks */
+#define KEY_LCK_EC_KEC		0x7
+#define KEY_EVENT_CODE		0x7f
+#define KEY_EVENT_VALUE		0x80
+
+
+static const struct i2c_device_id tca8418_id[] = {
+	{ TCA8418_NAME, 8418, },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, tca8418_id);
+
+struct tca8418_keypad {
+	unsigned int rows;
+	unsigned int cols;
+	unsigned int keypad_mask; /* Mask for keypad col/rol regs */
+	unsigned int irq;
+	unsigned int row_shift;
+
+	struct i2c_client *client;
+	struct input_dev *input;
+
+	/* Flexible array member, must be at end of struct */
+	unsigned short keymap[];
+};
+
+/*
+ * Write a byte to the TCA8418
+ */
+static int tca8418_write_byte(struct tca8418_keypad *keypad_data,
+			      int reg, u8 val)
+{
+	int error;
+
+	error = i2c_smbus_write_byte_data(keypad_data->client, reg, val);
+	if (error < 0) {
+		dev_err(&keypad_data->client->dev,
+			"%s failed, reg: %d, val: %d, error: %d\n",
+			__func__, reg, val, error);
+		return error;
+	}
+
+	return 0;
+}
+
+/*
+ * Read a byte from the TCA8418
+ */
+static int tca8418_read_byte(struct tca8418_keypad *keypad_data,
+			     int reg, u8 *val)
+{
+	int error;
+
+	error = i2c_smbus_read_byte_data(keypad_data->client, reg);
+	if (error < 0) {
+		dev_err(&keypad_data->client->dev,
+				"%s failed, reg: %d, error: %d\n",
+				__func__, reg, error);
+		return error;
+	}
+
+	*val = (u8)error;
+
+	return 0;
+}
+
+static void tca8418_read_keypad(struct tca8418_keypad *keypad_data)
+{
+	int error, col, row;
+	u8 reg, state, code;
+
+	/* Initial read of the key event FIFO */
+	error = tca8418_read_byte(keypad_data, REG_KEY_EVENT_A, &reg);
+
+	/* Assume that key code 0 signifies empty FIFO */
+	while (error >= 0 && reg > 0) {
+		state = reg & KEY_EVENT_VALUE;
+		code  = reg & KEY_EVENT_CODE;
+
+		row = code / TCA8418_MAX_COLS;
+		col = code % TCA8418_MAX_COLS;
+
+		row = (col) ? row : row - 1;
+		col = (col) ? col - 1 : TCA8418_MAX_COLS - 1;
+
+		code = MATRIX_SCAN_CODE(row, col, keypad_data->row_shift);
+		input_event(keypad_data->input, EV_MSC, MSC_SCAN, code);
+		input_report_key(keypad_data->input,
+				keypad_data->keymap[code], state);
+
+		/* Read for next loop */
+		error = tca8418_read_byte(keypad_data, REG_KEY_EVENT_A, &reg);
+	}
+
+	if (error < 0)
+		dev_err(&keypad_data->client->dev,
+			"unable to read REG_KEY_EVENT_A\n");
+
+	input_sync(keypad_data->input);
+}
+
+/*
+ * Threaded IRQ handler and this can (and will) sleep.
+ */
+static irqreturn_t tca8418_irq_handler(int irq, void *dev_id)
+{
+	struct tca8418_keypad *keypad_data = dev_id;
+	u8 reg;
+	int error;
+
+	error = tca8418_read_byte(keypad_data, REG_INT_STAT, &reg);
+	if (error) {
+		dev_err(&keypad_data->client->dev,
+			"unable to read REG_INT_STAT\n");
+		goto exit;
+	}
+
+	if (reg & INT_STAT_OVR_FLOW_INT)
+		dev_warn(&keypad_data->client->dev, "overflow occurred\n");
+
+	if (reg & INT_STAT_K_INT)
+		tca8418_read_keypad(keypad_data);
+
+exit:
+	/* Clear all interrupts, even IRQs we didn't check (GPI, CAD, LCK) */
+	reg = 0xff;
+	error = tca8418_write_byte(keypad_data, REG_INT_STAT, reg);
+	if (error)
+		dev_err(&keypad_data->client->dev,
+			"unable to clear REG_INT_STAT\n");
+
+	return IRQ_HANDLED;
+}
+
+/*
+ * Configure the TCA8418 for keypad operation
+ */
+static int __devinit tca8418_configure(struct tca8418_keypad *keypad_data)
+{
+	int reg, error;
+
+	/* Write config register, if this fails assume device not present */
+	error = tca8418_write_byte(keypad_data, REG_CFG,
+				CFG_INT_CFG | CFG_OVR_FLOW_IEN | CFG_KE_IEN);
+	if (error < 0)
+		return -ENODEV;
+
+
+	/* Assemble a mask for row and column registers */
+	reg  =  ~(~0 << keypad_data->rows);
+	reg += (~(~0 << keypad_data->cols)) << 8;
+	keypad_data->keypad_mask = reg;
+
+	/* Set registers to keypad mode */
+	error |= tca8418_write_byte(keypad_data, REG_KP_GPIO1, reg);
+	error |= tca8418_write_byte(keypad_data, REG_KP_GPIO2, reg >> 8);
+	error |= tca8418_write_byte(keypad_data, REG_KP_GPIO3, reg >> 16);
+
+	/* Enable column debouncing */
+	error |= tca8418_write_byte(keypad_data, REG_DEBOUNCE_DIS1, reg);
+	error |= tca8418_write_byte(keypad_data, REG_DEBOUNCE_DIS2, reg >> 8);
+	error |= tca8418_write_byte(keypad_data, REG_DEBOUNCE_DIS3, reg >> 16);
+
+	return error;
+}
+
+static int __devinit tca8418_keypad_probe(struct i2c_client *client,
+					  const struct i2c_device_id *id)
+{
+	const struct tca8418_keypad_platform_data *pdata =
+						client->dev.platform_data;
+	struct tca8418_keypad *keypad_data;
+	struct input_dev *input;
+	int error, row_shift, max_keys;
+
+	/* Copy the platform data */
+	if (!pdata) {
+		dev_dbg(&client->dev, "no platform data\n");
+		return -EINVAL;
+	}
+
+	if (!pdata->keymap_data) {
+		dev_err(&client->dev, "no keymap data defined\n");
+		return -EINVAL;
+	}
+
+	if (!pdata->rows || pdata->rows > TCA8418_MAX_ROWS) {
+		dev_err(&client->dev, "invalid rows\n");
+		return -EINVAL;
+	}
+
+	if (!pdata->cols || pdata->cols > TCA8418_MAX_COLS) {
+		dev_err(&client->dev, "invalid columns\n");
+		return -EINVAL;
+	}
+
+	/* Check i2c driver capabilities */
+	if (!i2c_check_functionality(client->adapter, I2C_FUNC_SMBUS_BYTE)) {
+		dev_err(&client->dev, "%s adapter not supported\n",
+			dev_driver_string(&client->adapter->dev));
+		return -ENODEV;
+	}
+
+	row_shift = get_count_order(pdata->cols);
+	max_keys = pdata->rows << row_shift;
+
+	/* Allocate memory for keypad_data, keymap and input device */
+	keypad_data = kzalloc(sizeof(*keypad_data) +
+			max_keys * sizeof(keypad_data->keymap[0]), GFP_KERNEL);
+	if (!keypad_data)
+		return -ENOMEM;
+
+	keypad_data->rows = pdata->rows;
+	keypad_data->cols = pdata->cols;
+	keypad_data->client = client;
+	keypad_data->row_shift = row_shift;
+
+	/* Initialize the chip or fail if chip isn't present */
+	error = tca8418_configure(keypad_data);
+	if (error < 0)
+		goto fail1;
+
+	/* Configure input device */
+	input = input_allocate_device();
+	if (!input) {
+		error = -ENOMEM;
+		goto fail1;
+	}
+	keypad_data->input = input;
+
+	input->name = client->name;
+	input->dev.parent = &client->dev;
+
+	input->id.bustype = BUS_I2C;
+	input->id.vendor  = 0x0001;
+	input->id.product = 0x001;
+	input->id.version = 0x0001;
+
+	input->keycode     = keypad_data->keymap;
+	input->keycodesize = sizeof(keypad_data->keymap[0]);
+	input->keycodemax  = max_keys;
+
+	__set_bit(EV_KEY, input->evbit);
+	if (pdata->rep)
+		__set_bit(EV_REP, input->evbit);
+
+	input_set_capability(input, EV_MSC, MSC_SCAN);
+
+	input_set_drvdata(input, keypad_data);
+
+	matrix_keypad_build_keymap(pdata->keymap_data, row_shift,
+			input->keycode, input->keybit);
+
+	if (pdata->irq_is_gpio)
+		client->irq = gpio_to_irq(client->irq);
+
+	error = request_threaded_irq(client->irq, NULL, tca8418_irq_handler,
+				     IRQF_TRIGGER_FALLING,
+				     client->name, keypad_data);
+	if (error) {
+		dev_dbg(&client->dev,
+			"Unable to claim irq %d; error %d\n",
+			client->irq, error);
+		goto fail2;
+	}
+
+	error = input_register_device(input);
+	if (error) {
+		dev_dbg(&client->dev,
+			"Unable to register input device, error: %d\n", error);
+		goto fail3;
+	}
+
+	i2c_set_clientdata(client, keypad_data);
+	return 0;
+
+fail3:
+	free_irq(client->irq, keypad_data);
+fail2:
+	input_free_device(input);
+fail1:
+	kfree(keypad_data);
+	return error;
+}
+
+static int __devexit tca8418_keypad_remove(struct i2c_client *client)
+{
+	struct tca8418_keypad *keypad_data = i2c_get_clientdata(client);
+
+	free_irq(keypad_data->client->irq, keypad_data);
+
+	input_unregister_device(keypad_data->input);
+
+	kfree(keypad_data);
+
+	return 0;
+}
+
+
+static struct i2c_driver tca8418_keypad_driver = {
+	.driver = {
+		.name	= TCA8418_NAME,
+		.owner	= THIS_MODULE,
+	},
+	.probe		= tca8418_keypad_probe,
+	.remove		= __devexit_p(tca8418_keypad_remove),
+	.id_table	= tca8418_id,
+};
+
+static int __init tca8418_keypad_init(void)
+{
+	return i2c_add_driver(&tca8418_keypad_driver);
+}
+subsys_initcall(tca8418_keypad_init);
+
+static void __exit tca8418_keypad_exit(void)
+{
+	i2c_del_driver(&tca8418_keypad_driver);
+}
+module_exit(tca8418_keypad_exit);
+
+MODULE_AUTHOR("Kyle Manna <kyle.manna@fuel7.com>");
+MODULE_DESCRIPTION("Keypad driver for TCA8418");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/keyboard/tegra-kbc.c b/drivers/input/keyboard/tegra-kbc.c
index cf3228b0ab90..a136e2e832be 100644
--- a/drivers/input/keyboard/tegra-kbc.c
+++ b/drivers/input/keyboard/tegra-kbc.c
@@ -26,6 +26,7 @@
 #include <linux/delay.h>
 #include <linux/io.h>
 #include <linux/interrupt.h>
+#include <linux/of.h>
 #include <linux/clk.h>
 #include <linux/slab.h>
 #include <mach/clk.h>
@@ -52,6 +53,7 @@
 /* KBC Interrupt Register */
 #define KBC_INT_0	0x4
 #define KBC_INT_FIFO_CNT_INT_STATUS	(1 << 2)
+#define KBC_INT_KEYPRESS_INT_STATUS	(1 << 0)
 
 #define KBC_ROW_CFG0_0	0x8
 #define KBC_COL_CFG0_0	0x18
@@ -74,15 +76,17 @@ struct tegra_kbc {
 	unsigned int cp_to_wkup_dly;
 	bool use_fn_map;
 	bool use_ghost_filter;
+	bool keypress_caused_wake;
 	const struct tegra_kbc_platform_data *pdata;
 	unsigned short keycode[KBC_MAX_KEY * 2];
 	unsigned short current_keys[KBC_MAX_KPENT];
 	unsigned int num_pressed_keys;
+	u32 wakeup_key;
 	struct timer_list timer;
 	struct clk *clk;
 };
 
-static const u32 tegra_kbc_default_keymap[] = {
+static const u32 tegra_kbc_default_keymap[] __devinitdata = {
 	KEY(0, 2, KEY_W),
 	KEY(0, 3, KEY_S),
 	KEY(0, 4, KEY_A),
@@ -217,7 +221,8 @@ static const u32 tegra_kbc_default_keymap[] = {
 	KEY(31, 4, KEY_HELP),
 };
 
-static const struct matrix_keymap_data tegra_kbc_default_keymap_data = {
+static const
+struct matrix_keymap_data tegra_kbc_default_keymap_data __devinitdata = {
 	.keymap		= tegra_kbc_default_keymap,
 	.keymap_size	= ARRAY_SIZE(tegra_kbc_default_keymap),
 };
@@ -409,6 +414,9 @@ static irqreturn_t tegra_kbc_isr(int irq, void *args)
 		 */
 		tegra_kbc_set_fifo_interrupt(kbc, false);
 		mod_timer(&kbc->timer, jiffies + kbc->cp_dly_jiffies);
+	} else if (val & KBC_INT_KEYPRESS_INT_STATUS) {
+		/* We can be here only through system resume path */
+		kbc->keypress_caused_wake = true;
 	}
 
 	spin_unlock_irqrestore(&kbc->lock, flags);
@@ -576,6 +584,56 @@ tegra_kbc_check_pin_cfg(const struct tegra_kbc_platform_data *pdata,
 	return true;
 }
 
+#ifdef CONFIG_OF
+static struct tegra_kbc_platform_data * __devinit
+tegra_kbc_dt_parse_pdata(struct platform_device *pdev)
+{
+	struct tegra_kbc_platform_data *pdata;
+	struct device_node *np = pdev->dev.of_node;
+
+	if (!np)
+		return NULL;
+
+	pdata = kzalloc(sizeof(*pdata), GFP_KERNEL);
+	if (!pdata)
+		return NULL;
+
+	if (!of_property_read_u32(np, "debounce-delay", &prop))
+		pdata->debounce_cnt = prop;
+
+	if (!of_property_read_u32(np, "repeat-delay", &prop))
+		pdata->repeat_cnt = prop;
+
+	if (of_find_property(np, "needs-ghost-filter", NULL))
+		pdata->use_ghost_filter = true;
+
+	if (of_find_property(np, "wakeup-source", NULL))
+		pdata->wakeup = true;
+
+	/*
+	 * All currently known keymaps with device tree support use the same
+	 * pin_cfg, so set it up here.
+	 */
+	for (i = 0; i < KBC_MAX_ROW; i++) {
+		pdata->pin_cfg[i].num = i;
+		pdata->pin_cfg[i].is_row = true;
+	}
+
+	for (i = 0; i < KBC_MAX_COL; i++) {
+		pdata->pin_cfg[KBC_MAX_ROW + i].num = i;
+		pdata->pin_cfg[KBC_MAX_ROW + i].is_row = false;
+	}
+
+	return pdata;
+}
+#else
+static inline struct tegra_kbc_platform_data *tegra_kbc_dt_parse_pdata(
+	struct platform_device *pdev)
+{
+	return NULL;
+}
+#endif
+
 static int __devinit tegra_kbc_probe(struct platform_device *pdev)
 {
 	const struct tegra_kbc_platform_data *pdata = pdev->dev.platform_data;
@@ -590,21 +648,28 @@ static int __devinit tegra_kbc_probe(struct platform_device *pdev)
 	unsigned int scan_time_rows;
 
 	if (!pdata)
-		return -EINVAL;
+		pdata = tegra_kbc_dt_parse_pdata(pdev);
 
-	if (!tegra_kbc_check_pin_cfg(pdata, &pdev->dev, &num_rows))
+	if (!pdata)
 		return -EINVAL;
 
+	if (!tegra_kbc_check_pin_cfg(pdata, &pdev->dev, &num_rows)) {
+		err = -EINVAL;
+		goto err_free_pdata;
+	}
+
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!res) {
 		dev_err(&pdev->dev, "failed to get I/O memory\n");
-		return -ENXIO;
+		err = -ENXIO;
+		goto err_free_pdata;
 	}
 
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0) {
 		dev_err(&pdev->dev, "failed to get keyboard IRQ\n");
-		return -ENXIO;
+		err = -ENXIO;
+		goto err_free_pdata;
 	}
 
 	kbc = kzalloc(sizeof(*kbc), GFP_KERNEL);
@@ -674,9 +739,10 @@ static int __devinit tegra_kbc_probe(struct platform_device *pdev)
 	keymap_data = pdata->keymap_data ?: &tegra_kbc_default_keymap_data;
 	matrix_keypad_build_keymap(keymap_data, KBC_ROW_SHIFT,
 				   input_dev->keycode, input_dev->keybit);
+	kbc->wakeup_key = pdata->wakeup_key;
 
-	err = request_irq(kbc->irq, tegra_kbc_isr, IRQF_TRIGGER_HIGH,
-			  pdev->name, kbc);
+	err = request_irq(kbc->irq, tegra_kbc_isr,
+			  IRQF_NO_SUSPEND | IRQF_TRIGGER_HIGH, pdev->name, kbc);
 	if (err) {
 		dev_err(&pdev->dev, "failed to request keyboard IRQ\n");
 		goto err_put_clk;
@@ -706,6 +772,9 @@ err_free_mem_region:
 err_free_mem:
 	input_free_device(input_dev);
 	kfree(kbc);
+err_free_pdata:
+	if (!pdev->dev.platform_data)
+		kfree(pdata);
 
 	return err;
 }
@@ -715,6 +784,8 @@ static int __devexit tegra_kbc_remove(struct platform_device *pdev)
 	struct tegra_kbc *kbc = platform_get_drvdata(pdev);
 	struct resource *res;
 
+	platform_set_drvdata(pdev, NULL);
+
 	free_irq(kbc->irq, pdev);
 	clk_put(kbc->clk);
 
@@ -723,9 +794,14 @@ static int __devexit tegra_kbc_remove(struct platform_device *pdev)
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	release_mem_region(res->start, resource_size(res));
 
-	kfree(kbc);
+	/*
+	 * If we do not have platform data attached to the device we
+	 * allocated it ourselves and thus need to free it.
+	 */
+	if (!pdev->dev.platform_data)
+		kfree(kbc->pdata);
 
-	platform_set_drvdata(pdev, NULL);
+	kfree(kbc);
 
 	return 0;
 }
@@ -754,6 +830,8 @@ static int tegra_kbc_suspend(struct device *dev)
 		tegra_kbc_setup_wakekeys(kbc, true);
 		msleep(30);
 
+		kbc->keypress_caused_wake = false;
+		enable_irq(kbc->irq);
 		enable_irq_wake(kbc->irq);
 	} else {
 		if (kbc->idev->users)
@@ -780,7 +858,19 @@ static int tegra_kbc_resume(struct device *dev)
 
 		tegra_kbc_set_fifo_interrupt(kbc, true);
 
-		enable_irq(kbc->irq);
+		if (kbc->keypress_caused_wake && kbc->wakeup_key) {
+			/*
+			 * We can't report events directly from the ISR
+			 * because timekeeping is stopped when processing
+			 * wakeup request and we get a nasty warning when
+			 * we try to call do_gettimeofday() in evdev
+			 * handler.
+			 */
+			input_report_key(kbc->idev, kbc->wakeup_key, 1);
+			input_sync(kbc->idev);
+			input_report_key(kbc->idev, kbc->wakeup_key, 0);
+			input_sync(kbc->idev);
+		}
 	} else {
 		if (kbc->idev->users)
 			err = tegra_kbc_start(kbc);
@@ -793,6 +883,12 @@ static int tegra_kbc_resume(struct device *dev)
 
 static SIMPLE_DEV_PM_OPS(tegra_kbc_pm_ops, tegra_kbc_suspend, tegra_kbc_resume);
 
+static const struct of_device_id tegra_kbc_of_match[] = {
+	{ .compatible = "nvidia,tegra20-kbc", },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, tegra_kbc_of_match);
+
 static struct platform_driver tegra_kbc_driver = {
 	.probe		= tegra_kbc_probe,
 	.remove		= __devexit_p(tegra_kbc_remove),
@@ -800,20 +896,10 @@ static struct platform_driver tegra_kbc_driver = {
 		.name	= "tegra-kbc",
 		.owner  = THIS_MODULE,
 		.pm	= &tegra_kbc_pm_ops,
+		.of_match_table = tegra_kbc_of_match,
 	},
 };
-
-static void __exit tegra_kbc_exit(void)
-{
-	platform_driver_unregister(&tegra_kbc_driver);
-}
-module_exit(tegra_kbc_exit);
-
-static int __init tegra_kbc_init(void)
-{
-	return platform_driver_register(&tegra_kbc_driver);
-}
-module_init(tegra_kbc_init);
+module_platform_driver(tegra_kbc_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Rakesh Iyer <riyer@nvidia.com>");
diff --git a/drivers/input/keyboard/tnetv107x-keypad.c b/drivers/input/keyboard/tnetv107x-keypad.c
index 66e55e5cfdd6..fb39c94b6fdd 100644
--- a/drivers/input/keyboard/tnetv107x-keypad.c
+++ b/drivers/input/keyboard/tnetv107x-keypad.c
@@ -322,19 +322,7 @@ static struct platform_driver keypad_driver = {
 	.driver.name	= "tnetv107x-keypad",
 	.driver.owner	= THIS_MODULE,
 };
-
-static int __init keypad_init(void)
-{
-	return platform_driver_register(&keypad_driver);
-}
-
-static void __exit keypad_exit(void)
-{
-	platform_driver_unregister(&keypad_driver);
-}
-
-module_init(keypad_init);
-module_exit(keypad_exit);
+module_platform_driver(keypad_driver);
 
 MODULE_AUTHOR("Cyril Chemparathy");
 MODULE_DESCRIPTION("TNETV107X Keypad Driver");
diff --git a/drivers/input/keyboard/twl4030_keypad.c b/drivers/input/keyboard/twl4030_keypad.c
index a26922cf0e84..a588578037eb 100644
--- a/drivers/input/keyboard/twl4030_keypad.c
+++ b/drivers/input/keyboard/twl4030_keypad.c
@@ -460,18 +460,7 @@ static struct platform_driver twl4030_kp_driver = {
 		.owner	= THIS_MODULE,
 	},
 };
-
-static int __init twl4030_kp_init(void)
-{
-	return platform_driver_register(&twl4030_kp_driver);
-}
-module_init(twl4030_kp_init);
-
-static void __exit twl4030_kp_exit(void)
-{
-	platform_driver_unregister(&twl4030_kp_driver);
-}
-module_exit(twl4030_kp_exit);
+module_platform_driver(twl4030_kp_driver);
 
 MODULE_AUTHOR("Texas Instruments");
 MODULE_DESCRIPTION("TWL4030 Keypad Driver");
diff --git a/drivers/input/keyboard/w90p910_keypad.c b/drivers/input/keyboard/w90p910_keypad.c
index 318586dadacf..99bbb7e775ae 100644
--- a/drivers/input/keyboard/w90p910_keypad.c
+++ b/drivers/input/keyboard/w90p910_keypad.c
@@ -262,19 +262,7 @@ static struct platform_driver w90p910_keypad_driver = {
 		.owner	= THIS_MODULE,
 	},
 };
-
-static int __init w90p910_keypad_init(void)
-{
-	return platform_driver_register(&w90p910_keypad_driver);
-}
-
-static void __exit w90p910_keypad_exit(void)
-{
-	platform_driver_unregister(&w90p910_keypad_driver);
-}
-
-module_init(w90p910_keypad_init);
-module_exit(w90p910_keypad_exit);
+module_platform_driver(w90p910_keypad_driver);
 
 MODULE_AUTHOR("Wan ZongShun <mcuos.com@gmail.com>");
 MODULE_DESCRIPTION("w90p910 keypad driver");
diff --git a/drivers/input/misc/88pm860x_onkey.c b/drivers/input/misc/88pm860x_onkey.c
index 3dca3c14510e..f2e0cbc5ab64 100644
--- a/drivers/input/misc/88pm860x_onkey.c
+++ b/drivers/input/misc/88pm860x_onkey.c
@@ -137,18 +137,7 @@ static struct platform_driver pm860x_onkey_driver = {
 	.probe		= pm860x_onkey_probe,
 	.remove		= __devexit_p(pm860x_onkey_remove),
 };
-
-static int __init pm860x_onkey_init(void)
-{
-	return platform_driver_register(&pm860x_onkey_driver);
-}
-module_init(pm860x_onkey_init);
-
-static void __exit pm860x_onkey_exit(void)
-{
-	platform_driver_unregister(&pm860x_onkey_driver);
-}
-module_exit(pm860x_onkey_exit);
+module_platform_driver(pm860x_onkey_driver);
 
 MODULE_DESCRIPTION("Marvell 88PM860x ONKEY driver");
 MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index 22d875fde53a..7b46781c30c9 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -179,6 +179,31 @@ config INPUT_APANEL
 	 To compile this driver as a module, choose M here: the module will
 	 be called apanel.
 
+config INPUT_GP2A
+	tristate "Sharp GP2AP002A00F I2C Proximity/Opto sensor driver"
+	depends on I2C
+	depends on GENERIC_GPIO
+	help
+	  Say Y here if you have a Sharp GP2AP002A00F proximity/als combo-chip
+	  hooked to an I2C bus.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called gp2ap002a00f.
+
+config INPUT_GPIO_TILT_POLLED
+	tristate "Polled GPIO tilt switch"
+	depends on GENERIC_GPIO
+	select INPUT_POLLDEV
+	help
+	  This driver implements support for tilt switches connected
+	  to GPIO pins that are not capable of generating interrupts.
+
+	  The list of gpios to use and the mapping of their states
+	  to specific angles is done via platform data.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called gpio_tilt_polled.
+
 config INPUT_IXP4XX_BEEPER
 	tristate "IXP4XX Beeper support"
 	depends on ARCH_IXP4XX
diff --git a/drivers/input/misc/Makefile b/drivers/input/misc/Makefile
index a244fc6a781c..46671a875b91 100644
--- a/drivers/input/misc/Makefile
+++ b/drivers/input/misc/Makefile
@@ -22,6 +22,8 @@ obj-$(CONFIG_INPUT_CMA3000)		+= cma3000_d0x.o
 obj-$(CONFIG_INPUT_CMA3000_I2C)		+= cma3000_d0x_i2c.o
 obj-$(CONFIG_INPUT_COBALT_BTNS)		+= cobalt_btns.o
 obj-$(CONFIG_INPUT_DM355EVM)		+= dm355evm_keys.o
+obj-$(CONFIG_INPUT_GP2A)		+= gp2ap002a00f.o
+obj-$(CONFIG_INPUT_GPIO_TILT_POLLED)	+= gpio_tilt_polled.o
 obj-$(CONFIG_HP_SDC_RTC)		+= hp_sdc_rtc.o
 obj-$(CONFIG_INPUT_IXP4XX_BEEPER)	+= ixp4xx-beeper.o
 obj-$(CONFIG_INPUT_KEYSPAN_REMOTE)	+= keyspan_remote.o
diff --git a/drivers/input/misc/ab8500-ponkey.c b/drivers/input/misc/ab8500-ponkey.c
index 3d3288a78fdc..79d901633635 100644
--- a/drivers/input/misc/ab8500-ponkey.c
+++ b/drivers/input/misc/ab8500-ponkey.c
@@ -139,18 +139,7 @@ static struct platform_driver ab8500_ponkey_driver = {
 	.probe		= ab8500_ponkey_probe,
 	.remove		= __devexit_p(ab8500_ponkey_remove),
 };
-
-static int __init ab8500_ponkey_init(void)
-{
-	return platform_driver_register(&ab8500_ponkey_driver);
-}
-module_init(ab8500_ponkey_init);
-
-static void __exit ab8500_ponkey_exit(void)
-{
-	platform_driver_unregister(&ab8500_ponkey_driver);
-}
-module_exit(ab8500_ponkey_exit);
+module_platform_driver(ab8500_ponkey_driver);
 
 MODULE_LICENSE("GPL v2");
 MODULE_AUTHOR("Sundar Iyer <sundar.iyer@stericsson.com>");
diff --git a/drivers/input/misc/adxl34x-spi.c b/drivers/input/misc/adxl34x-spi.c
index f29de22fdda0..34d401efd4a1 100644
--- a/drivers/input/misc/adxl34x-spi.c
+++ b/drivers/input/misc/adxl34x-spi.c
@@ -122,7 +122,6 @@ static SIMPLE_DEV_PM_OPS(adxl34x_spi_pm, adxl34x_spi_suspend,
 static struct spi_driver adxl34x_driver = {
 	.driver = {
 		.name = "adxl34x",
-		.bus = &spi_bus_type,
 		.owner = THIS_MODULE,
 		.pm = &adxl34x_spi_pm,
 	},
diff --git a/drivers/input/misc/adxl34x.c b/drivers/input/misc/adxl34x.c
index 09244804fb97..1cf72fe513e6 100644
--- a/drivers/input/misc/adxl34x.c
+++ b/drivers/input/misc/adxl34x.c
@@ -452,10 +452,10 @@ static ssize_t adxl34x_disable_store(struct device *dev,
 				     const char *buf, size_t count)
 {
 	struct adxl34x *ac = dev_get_drvdata(dev);
-	unsigned long val;
+	unsigned int val;
 	int error;
 
-	error = strict_strtoul(buf, 10, &val);
+	error = kstrtouint(buf, 10, &val);
 	if (error)
 		return error;
 
@@ -541,10 +541,10 @@ static ssize_t adxl34x_rate_store(struct device *dev,
 				  const char *buf, size_t count)
 {
 	struct adxl34x *ac = dev_get_drvdata(dev);
-	unsigned long val;
+	unsigned char val;
 	int error;
 
-	error = strict_strtoul(buf, 10, &val);
+	error = kstrtou8(buf, 10, &val);
 	if (error)
 		return error;
 
@@ -576,10 +576,10 @@ static ssize_t adxl34x_autosleep_store(struct device *dev,
 				  const char *buf, size_t count)
 {
 	struct adxl34x *ac = dev_get_drvdata(dev);
-	unsigned long val;
+	unsigned int val;
 	int error;
 
-	error = strict_strtoul(buf, 10, &val);
+	error = kstrtouint(buf, 10, &val);
 	if (error)
 		return error;
 
@@ -623,13 +623,13 @@ static ssize_t adxl34x_write_store(struct device *dev,
 				   const char *buf, size_t count)
 {
 	struct adxl34x *ac = dev_get_drvdata(dev);
-	unsigned long val;
+	unsigned int val;
 	int error;
 
 	/*
 	 * This allows basic ADXL register write access for debug purposes.
 	 */
-	error = strict_strtoul(buf, 16, &val);
+	error = kstrtouint(buf, 16, &val);
 	if (error)
 		return error;
 
diff --git a/drivers/input/misc/ati_remote2.c b/drivers/input/misc/ati_remote2.c
index 874a51c2fbb2..f63341f20b91 100644
--- a/drivers/input/misc/ati_remote2.c
+++ b/drivers/input/misc/ati_remote2.c
@@ -42,13 +42,13 @@ static int ati_remote2_set_mask(const char *val,
 				const struct kernel_param *kp,
 				unsigned int max)
 {
-	unsigned long mask;
+	unsigned int mask;
 	int ret;
 
 	if (!val)
 		return -EINVAL;
 
-	ret = strict_strtoul(val, 0, &mask);
+	ret = kstrtouint(val, 0, &mask);
 	if (ret)
 		return ret;
 
@@ -720,11 +720,12 @@ static ssize_t ati_remote2_store_channel_mask(struct device *dev,
 	struct usb_device *udev = to_usb_device(dev);
 	struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
 	struct ati_remote2 *ar2 = usb_get_intfdata(intf);
-	unsigned long mask;
+	unsigned int mask;
 	int r;
 
-	if (strict_strtoul(buf, 0, &mask))
-		return -EINVAL;
+	r = kstrtouint(buf, 0, &mask);
+	if (r)
+		return r;
 
 	if (mask & ~ATI_REMOTE2_MAX_CHANNEL_MASK)
 		return -EINVAL;
@@ -769,10 +770,12 @@ static ssize_t ati_remote2_store_mode_mask(struct device *dev,
 	struct usb_device *udev = to_usb_device(dev);
 	struct usb_interface *intf = usb_ifnum_to_if(udev, 0);
 	struct ati_remote2 *ar2 = usb_get_intfdata(intf);
-	unsigned long mask;
+	unsigned int mask;
+	int err;
 
-	if (strict_strtoul(buf, 0, &mask))
-		return -EINVAL;
+	err = kstrtouint(buf, 0, &mask);
+	if (err)
+		return err;
 
 	if (mask & ~ATI_REMOTE2_MAX_MODE_MASK)
 		return -EINVAL;
diff --git a/drivers/input/misc/bfin_rotary.c b/drivers/input/misc/bfin_rotary.c
index d00edc9f39d1..1c4146fccfdf 100644
--- a/drivers/input/misc/bfin_rotary.c
+++ b/drivers/input/misc/bfin_rotary.c
@@ -264,18 +264,7 @@ static struct platform_driver bfin_rotary_device_driver = {
 #endif
 	},
 };
-
-static int __init bfin_rotary_init(void)
-{
-	return platform_driver_register(&bfin_rotary_device_driver);
-}
-module_init(bfin_rotary_init);
-
-static void __exit bfin_rotary_exit(void)
-{
-	platform_driver_unregister(&bfin_rotary_device_driver);
-}
-module_exit(bfin_rotary_exit);
+module_platform_driver(bfin_rotary_device_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
diff --git a/drivers/input/misc/cobalt_btns.c b/drivers/input/misc/cobalt_btns.c
index fd8407a29631..53e43d295148 100644
--- a/drivers/input/misc/cobalt_btns.c
+++ b/drivers/input/misc/cobalt_btns.c
@@ -163,16 +163,4 @@ static struct platform_driver cobalt_buttons_driver = {
 		.owner	= THIS_MODULE,
 	},
 };
-
-static int __init cobalt_buttons_init(void)
-{
-	return platform_driver_register(&cobalt_buttons_driver);
-}
-
-static void __exit cobalt_buttons_exit(void)
-{
-	platform_driver_unregister(&cobalt_buttons_driver);
-}
-
-module_init(cobalt_buttons_init);
-module_exit(cobalt_buttons_exit);
+module_platform_driver(cobalt_buttons_driver);
diff --git a/drivers/input/misc/dm355evm_keys.c b/drivers/input/misc/dm355evm_keys.c
index 7283dd2a1ad3..35083c6836c3 100644
--- a/drivers/input/misc/dm355evm_keys.c
+++ b/drivers/input/misc/dm355evm_keys.c
@@ -267,17 +267,6 @@ static struct platform_driver dm355evm_keys_driver = {
 		.name	= "dm355evm_keys",
 	},
 };
-
-static int __init dm355evm_keys_init(void)
-{
-	return platform_driver_register(&dm355evm_keys_driver);
-}
-module_init(dm355evm_keys_init);
-
-static void __exit dm355evm_keys_exit(void)
-{
-	platform_driver_unregister(&dm355evm_keys_driver);
-}
-module_exit(dm355evm_keys_exit);
+module_platform_driver(dm355evm_keys_driver);
 
 MODULE_LICENSE("GPL");
diff --git a/drivers/input/misc/gp2ap002a00f.c b/drivers/input/misc/gp2ap002a00f.c
new file mode 100644
index 000000000000..71fba8c2fc66
--- /dev/null
+++ b/drivers/input/misc/gp2ap002a00f.c
@@ -0,0 +1,299 @@
+/*
+ * Copyright (C) 2011 Sony Ericsson Mobile Communications Inc.
+ *
+ * Author: Courtney Cavin <courtney.cavin@sonyericsson.com>
+ * Prepared for up-stream by: Oskar Andero <oskar.andero@sonyericsson.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2, as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/i2c.h>
+#include <linux/irq.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/gpio.h>
+#include <linux/delay.h>
+#include <linux/input/gp2ap002a00f.h>
+
+struct gp2a_data {
+	struct input_dev *input;
+	const struct gp2a_platform_data *pdata;
+	struct i2c_client *i2c_client;
+};
+
+enum gp2a_addr {
+	GP2A_ADDR_PROX	= 0x0,
+	GP2A_ADDR_GAIN	= 0x1,
+	GP2A_ADDR_HYS	= 0x2,
+	GP2A_ADDR_CYCLE	= 0x3,
+	GP2A_ADDR_OPMOD	= 0x4,
+	GP2A_ADDR_CON	= 0x6
+};
+
+enum gp2a_controls {
+	/* Software Shutdown control: 0 = shutdown, 1 = normal operation */
+	GP2A_CTRL_SSD	= 0x01
+};
+
+static int gp2a_report(struct gp2a_data *dt)
+{
+	int vo = gpio_get_value(dt->pdata->vout_gpio);
+
+	input_report_switch(dt->input, SW_FRONT_PROXIMITY, !vo);
+	input_sync(dt->input);
+
+	return 0;
+}
+
+static irqreturn_t gp2a_irq(int irq, void *handle)
+{
+	struct gp2a_data *dt = handle;
+
+	gp2a_report(dt);
+
+	return IRQ_HANDLED;
+}
+
+static int gp2a_enable(struct gp2a_data *dt)
+{
+	return i2c_smbus_write_byte_data(dt->i2c_client, GP2A_ADDR_OPMOD,
+					 GP2A_CTRL_SSD);
+}
+
+static int gp2a_disable(struct gp2a_data *dt)
+{
+	return i2c_smbus_write_byte_data(dt->i2c_client, GP2A_ADDR_OPMOD,
+					 0x00);
+}
+
+static int gp2a_device_open(struct input_dev *dev)
+{
+	struct gp2a_data *dt = input_get_drvdata(dev);
+	int error;
+
+	error = gp2a_enable(dt);
+	if (error < 0) {
+		dev_err(&dt->i2c_client->dev,
+			"unable to activate, err %d\n", error);
+		return error;
+	}
+
+	gp2a_report(dt);
+
+	return 0;
+}
+
+static void gp2a_device_close(struct input_dev *dev)
+{
+	struct gp2a_data *dt = input_get_drvdata(dev);
+	int error;
+
+	error = gp2a_disable(dt);
+	if (error < 0)
+		dev_err(&dt->i2c_client->dev,
+			"unable to deactivate, err %d\n", error);
+}
+
+static int __devinit gp2a_initialize(struct gp2a_data *dt)
+{
+	int error;
+
+	error = i2c_smbus_write_byte_data(dt->i2c_client, GP2A_ADDR_GAIN,
+					  0x08);
+	if (error < 0)
+		return error;
+
+	error = i2c_smbus_write_byte_data(dt->i2c_client, GP2A_ADDR_HYS,
+					  0xc2);
+	if (error < 0)
+		return error;
+
+	error = i2c_smbus_write_byte_data(dt->i2c_client, GP2A_ADDR_CYCLE,
+					  0x04);
+	if (error < 0)
+		return error;
+
+	error = gp2a_disable(dt);
+
+	return error;
+}
+
+static int __devinit gp2a_probe(struct i2c_client *client,
+				const struct i2c_device_id *id)
+{
+	const struct gp2a_platform_data *pdata = client->dev.platform_data;
+	struct gp2a_data *dt;
+	int error;
+
+	if (!pdata)
+		return -EINVAL;
+
+	if (pdata->hw_setup) {
+		error = pdata->hw_setup(client);
+		if (error < 0)
+			return error;
+	}
+
+	error = gpio_request_one(pdata->vout_gpio, GPIOF_IN, GP2A_I2C_NAME);
+	if (error)
+		goto err_hw_shutdown;
+
+	dt = kzalloc(sizeof(struct gp2a_data), GFP_KERNEL);
+	if (!dt) {
+		error = -ENOMEM;
+		goto err_free_gpio;
+	}
+
+	dt->pdata = pdata;
+	dt->i2c_client = client;
+
+	error = gp2a_initialize(dt);
+	if (error < 0)
+		goto err_free_mem;
+
+	dt->input = input_allocate_device();
+	if (!dt->input) {
+		error = -ENOMEM;
+		goto err_free_mem;
+	}
+
+	input_set_drvdata(dt->input, dt);
+
+	dt->input->open = gp2a_device_open;
+	dt->input->close = gp2a_device_close;
+	dt->input->name = GP2A_I2C_NAME;
+	dt->input->id.bustype = BUS_I2C;
+	dt->input->dev.parent = &client->dev;
+
+	input_set_capability(dt->input, EV_SW, SW_FRONT_PROXIMITY);
+
+	error = request_threaded_irq(client->irq, NULL, gp2a_irq,
+			IRQF_TRIGGER_RISING | IRQF_TRIGGER_FALLING |
+				IRQF_ONESHOT,
+			GP2A_I2C_NAME, dt);
+	if (error) {
+		dev_err(&client->dev, "irq request failed\n");
+		goto err_free_input_dev;
+	}
+
+	error = input_register_device(dt->input);
+	if (error) {
+		dev_err(&client->dev, "device registration failed\n");
+		goto err_free_irq;
+	}
+
+	device_init_wakeup(&client->dev, pdata->wakeup);
+	i2c_set_clientdata(client, dt);
+
+	return 0;
+
+err_free_irq:
+	free_irq(client->irq, dt);
+err_free_input_dev:
+	input_free_device(dt->input);
+err_free_mem:
+	kfree(dt);
+err_free_gpio:
+	gpio_free(pdata->vout_gpio);
+err_hw_shutdown:
+	if (pdata->hw_shutdown)
+		pdata->hw_shutdown(client);
+	return error;
+}
+
+static int __devexit gp2a_remove(struct i2c_client *client)
+{
+	struct gp2a_data *dt = i2c_get_clientdata(client);
+	const struct gp2a_platform_data *pdata = dt->pdata;
+
+	device_init_wakeup(&client->dev, false);
+
+	free_irq(client->irq, dt);
+
+	input_unregister_device(dt->input);
+	kfree(dt);
+
+	gpio_free(pdata->vout_gpio);
+
+	if (pdata->hw_shutdown)
+		pdata->hw_shutdown(client);
+
+	return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int gp2a_suspend(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct gp2a_data *dt = i2c_get_clientdata(client);
+	int retval = 0;
+
+	if (device_may_wakeup(&client->dev)) {
+		enable_irq_wake(client->irq);
+	} else {
+		mutex_lock(&dt->input->mutex);
+		if (dt->input->users)
+			retval = gp2a_disable(dt);
+		mutex_unlock(&dt->input->mutex);
+	}
+
+	return retval;
+}
+
+static int gp2a_resume(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct gp2a_data *dt = i2c_get_clientdata(client);
+	int retval = 0;
+
+	if (device_may_wakeup(&client->dev)) {
+		disable_irq_wake(client->irq);
+	} else {
+		mutex_lock(&dt->input->mutex);
+		if (dt->input->users)
+			retval = gp2a_enable(dt);
+		mutex_unlock(&dt->input->mutex);
+	}
+
+	return retval;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(gp2a_pm, gp2a_suspend, gp2a_resume);
+
+static const struct i2c_device_id gp2a_i2c_id[] = {
+	{ GP2A_I2C_NAME, 0 },
+	{ }
+};
+
+static struct i2c_driver gp2a_i2c_driver = {
+	.driver = {
+		.name	= GP2A_I2C_NAME,
+		.owner	= THIS_MODULE,
+		.pm	= &gp2a_pm,
+	},
+	.probe		= gp2a_probe,
+	.remove		= __devexit_p(gp2a_remove),
+	.id_table	= gp2a_i2c_id,
+};
+
+static int __init gp2a_init(void)
+{
+	return i2c_add_driver(&gp2a_i2c_driver);
+}
+
+static void __exit gp2a_exit(void)
+{
+	i2c_del_driver(&gp2a_i2c_driver);
+}
+
+module_init(gp2a_init);
+module_exit(gp2a_exit);
+
+MODULE_AUTHOR("Courtney Cavin <courtney.cavin@sonyericsson.com>");
+MODULE_DESCRIPTION("Sharp GP2AP002A00F I2C Proximity/Opto sensor driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/input/misc/gpio_tilt_polled.c b/drivers/input/misc/gpio_tilt_polled.c
new file mode 100644
index 000000000000..277a0574c199
--- /dev/null
+++ b/drivers/input/misc/gpio_tilt_polled.c
@@ -0,0 +1,213 @@
+/*
+ *  Driver for tilt switches connected via GPIO lines
+ *  not capable of generating interrupts
+ *
+ *  Copyright (C) 2011 Heiko Stuebner <heiko@sntech.de>
+ *
+ *  based on: drivers/input/keyboard/gpio_keys_polled.c
+ *
+ *  Copyright (C) 2007-2010 Gabor Juhos <juhosg@openwrt.org>
+ *  Copyright (C) 2010 Nuno Goncalves <nunojpg@gmail.com>
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License version 2 as
+ *  published by the Free Software Foundation.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/input-polldev.h>
+#include <linux/ioport.h>
+#include <linux/platform_device.h>
+#include <linux/gpio.h>
+#include <linux/input/gpio_tilt.h>
+
+#define DRV_NAME	"gpio-tilt-polled"
+
+struct gpio_tilt_polled_dev {
+	struct input_polled_dev *poll_dev;
+	struct device *dev;
+	const struct gpio_tilt_platform_data *pdata;
+
+	int last_state;
+
+	int threshold;
+	int count;
+};
+
+static void gpio_tilt_polled_poll(struct input_polled_dev *dev)
+{
+	struct gpio_tilt_polled_dev *tdev = dev->private;
+	const struct gpio_tilt_platform_data *pdata = tdev->pdata;
+	struct input_dev *input = dev->input;
+	struct gpio_tilt_state *tilt_state = NULL;
+	int state, i;
+
+	if (tdev->count < tdev->threshold) {
+		tdev->count++;
+	} else {
+		state = 0;
+		for (i = 0; i < pdata->nr_gpios; i++)
+			state |= (!!gpio_get_value(pdata->gpios[i].gpio) << i);
+
+		if (state != tdev->last_state) {
+			for (i = 0; i < pdata->nr_states; i++)
+				if (pdata->states[i].gpios == state)
+					tilt_state = &pdata->states[i];
+
+			if (tilt_state) {
+				for (i = 0; i < pdata->nr_axes; i++)
+					input_report_abs(input,
+							 pdata->axes[i].axis,
+							 tilt_state->axes[i]);
+
+				input_sync(input);
+			}
+
+			tdev->count = 0;
+			tdev->last_state = state;
+		}
+	}
+}
+
+static void gpio_tilt_polled_open(struct input_polled_dev *dev)
+{
+	struct gpio_tilt_polled_dev *tdev = dev->private;
+	const struct gpio_tilt_platform_data *pdata = tdev->pdata;
+
+	if (pdata->enable)
+		pdata->enable(tdev->dev);
+
+	/* report initial state of the axes */
+	tdev->last_state = -1;
+	tdev->count = tdev->threshold;
+	gpio_tilt_polled_poll(tdev->poll_dev);
+}
+
+static void gpio_tilt_polled_close(struct input_polled_dev *dev)
+{
+	struct gpio_tilt_polled_dev *tdev = dev->private;
+	const struct gpio_tilt_platform_data *pdata = tdev->pdata;
+
+	if (pdata->disable)
+		pdata->disable(tdev->dev);
+}
+
+static int __devinit gpio_tilt_polled_probe(struct platform_device *pdev)
+{
+	const struct gpio_tilt_platform_data *pdata = pdev->dev.platform_data;
+	struct device *dev = &pdev->dev;
+	struct gpio_tilt_polled_dev *tdev;
+	struct input_polled_dev *poll_dev;
+	struct input_dev *input;
+	int error, i;
+
+	if (!pdata || !pdata->poll_interval)
+		return -EINVAL;
+
+	tdev = kzalloc(sizeof(struct gpio_tilt_polled_dev), GFP_KERNEL);
+	if (!tdev) {
+		dev_err(dev, "no memory for private data\n");
+		return -ENOMEM;
+	}
+
+	error = gpio_request_array(pdata->gpios, pdata->nr_gpios);
+	if (error) {
+		dev_err(dev,
+			"Could not request tilt GPIOs: %d\n", error);
+		goto err_free_tdev;
+	}
+
+	poll_dev = input_allocate_polled_device();
+	if (!poll_dev) {
+		dev_err(dev, "no memory for polled device\n");
+		error = -ENOMEM;
+		goto err_free_gpios;
+	}
+
+	poll_dev->private = tdev;
+	poll_dev->poll = gpio_tilt_polled_poll;
+	poll_dev->poll_interval = pdata->poll_interval;
+	poll_dev->open = gpio_tilt_polled_open;
+	poll_dev->close = gpio_tilt_polled_close;
+
+	input = poll_dev->input;
+
+	input->name = pdev->name;
+	input->phys = DRV_NAME"/input0";
+	input->dev.parent = &pdev->dev;
+
+	input->id.bustype = BUS_HOST;
+	input->id.vendor = 0x0001;
+	input->id.product = 0x0001;
+	input->id.version = 0x0100;
+
+	__set_bit(EV_ABS, input->evbit);
+	for (i = 0; i < pdata->nr_axes; i++)
+		input_set_abs_params(input, pdata->axes[i].axis,
+				     pdata->axes[i].min, pdata->axes[i].max,
+				     pdata->axes[i].fuzz, pdata->axes[i].flat);
+
+	tdev->threshold = DIV_ROUND_UP(pdata->debounce_interval,
+				       pdata->poll_interval);
+
+	tdev->poll_dev = poll_dev;
+	tdev->dev = dev;
+	tdev->pdata = pdata;
+
+	error = input_register_polled_device(poll_dev);
+	if (error) {
+		dev_err(dev, "unable to register polled device, err=%d\n",
+			error);
+		goto err_free_polldev;
+	}
+
+	platform_set_drvdata(pdev, tdev);
+
+	return 0;
+
+err_free_polldev:
+	input_free_polled_device(poll_dev);
+err_free_gpios:
+	gpio_free_array(pdata->gpios, pdata->nr_gpios);
+err_free_tdev:
+	kfree(tdev);
+
+	return error;
+}
+
+static int __devexit gpio_tilt_polled_remove(struct platform_device *pdev)
+{
+	struct gpio_tilt_polled_dev *tdev = platform_get_drvdata(pdev);
+	const struct gpio_tilt_platform_data *pdata = tdev->pdata;
+
+	platform_set_drvdata(pdev, NULL);
+
+	input_unregister_polled_device(tdev->poll_dev);
+	input_free_polled_device(tdev->poll_dev);
+
+	gpio_free_array(pdata->gpios, pdata->nr_gpios);
+
+	kfree(tdev);
+
+	return 0;
+}
+
+static struct platform_driver gpio_tilt_polled_driver = {
+	.probe	= gpio_tilt_polled_probe,
+	.remove	= __devexit_p(gpio_tilt_polled_remove),
+	.driver	= {
+		.name	= DRV_NAME,
+		.owner	= THIS_MODULE,
+	},
+};
+
+module_platform_driver(gpio_tilt_polled_driver);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Heiko Stuebner <heiko@sntech.de>");
+MODULE_DESCRIPTION("Polled GPIO tilt driver");
+MODULE_ALIAS("platform:" DRV_NAME);
diff --git a/drivers/input/misc/ixp4xx-beeper.c b/drivers/input/misc/ixp4xx-beeper.c
index 302ab46ce752..50e283068301 100644
--- a/drivers/input/misc/ixp4xx-beeper.c
+++ b/drivers/input/misc/ixp4xx-beeper.c
@@ -168,16 +168,5 @@ static struct platform_driver ixp4xx_spkr_platform_driver = {
 	.remove		= __devexit_p(ixp4xx_spkr_remove),
 	.shutdown	= ixp4xx_spkr_shutdown,
 };
+module_platform_driver(ixp4xx_spkr_platform_driver);
 
-static int __init ixp4xx_spkr_init(void)
-{
-	return platform_driver_register(&ixp4xx_spkr_platform_driver);
-}
-
-static void __exit ixp4xx_spkr_exit(void)
-{
-	platform_driver_unregister(&ixp4xx_spkr_platform_driver);
-}
-
-module_init(ixp4xx_spkr_init);
-module_exit(ixp4xx_spkr_exit);
diff --git a/drivers/input/misc/max8925_onkey.c b/drivers/input/misc/max8925_onkey.c
index 7de0ded4ccc3..23cf08271049 100644
--- a/drivers/input/misc/max8925_onkey.c
+++ b/drivers/input/misc/max8925_onkey.c
@@ -166,18 +166,7 @@ static struct platform_driver max8925_onkey_driver = {
 	.probe		= max8925_onkey_probe,
 	.remove		= __devexit_p(max8925_onkey_remove),
 };
-
-static int __init max8925_onkey_init(void)
-{
-	return platform_driver_register(&max8925_onkey_driver);
-}
-module_init(max8925_onkey_init);
-
-static void __exit max8925_onkey_exit(void)
-{
-	platform_driver_unregister(&max8925_onkey_driver);
-}
-module_exit(max8925_onkey_exit);
+module_platform_driver(max8925_onkey_driver);
 
 MODULE_DESCRIPTION("Maxim MAX8925 ONKEY driver");
 MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
diff --git a/drivers/input/misc/mc13783-pwrbutton.c b/drivers/input/misc/mc13783-pwrbutton.c
index 09b052288657..8428f1e8e83e 100644
--- a/drivers/input/misc/mc13783-pwrbutton.c
+++ b/drivers/input/misc/mc13783-pwrbutton.c
@@ -255,7 +255,7 @@ static int __devexit mc13783_pwrbutton_remove(struct platform_device *pdev)
 	return 0;
 }
 
-struct platform_driver mc13783_pwrbutton_driver = {
+static struct platform_driver mc13783_pwrbutton_driver = {
 	.probe		= mc13783_pwrbutton_probe,
 	.remove		= __devexit_p(mc13783_pwrbutton_remove),
 	.driver		= {
@@ -264,17 +264,7 @@ struct platform_driver mc13783_pwrbutton_driver = {
 	},
 };
 
-static int __init mc13783_pwrbutton_init(void)
-{
-	return platform_driver_register(&mc13783_pwrbutton_driver);
-}
-module_init(mc13783_pwrbutton_init);
-
-static void __exit mc13783_pwrbutton_exit(void)
-{
-	platform_driver_unregister(&mc13783_pwrbutton_driver);
-}
-module_exit(mc13783_pwrbutton_exit);
+module_platform_driver(mc13783_pwrbutton_driver);
 
 MODULE_ALIAS("platform:mc13783-pwrbutton");
 MODULE_DESCRIPTION("MC13783 Power Button");
diff --git a/drivers/input/misc/mpu3050.c b/drivers/input/misc/mpu3050.c
index f71dc728da58..208d1a1cc7f3 100644
--- a/drivers/input/misc/mpu3050.c
+++ b/drivers/input/misc/mpu3050.c
@@ -41,18 +41,67 @@
 #include <linux/slab.h>
 #include <linux/pm_runtime.h>
 
-#define MPU3050_CHIP_ID_REG	0x00
 #define MPU3050_CHIP_ID		0x69
-#define MPU3050_XOUT_H		0x1D
-#define MPU3050_PWR_MGM		0x3E
-#define MPU3050_PWR_MGM_POS	6
-#define MPU3050_PWR_MGM_MASK	0x40
 
 #define MPU3050_AUTO_DELAY	1000
 
 #define MPU3050_MIN_VALUE	-32768
 #define MPU3050_MAX_VALUE	32767
 
+#define MPU3050_DEFAULT_POLL_INTERVAL	200
+#define MPU3050_DEFAULT_FS_RANGE	3
+
+/* Register map */
+#define MPU3050_CHIP_ID_REG	0x00
+#define MPU3050_SMPLRT_DIV	0x15
+#define MPU3050_DLPF_FS_SYNC	0x16
+#define MPU3050_INT_CFG		0x17
+#define MPU3050_XOUT_H		0x1D
+#define MPU3050_PWR_MGM		0x3E
+#define MPU3050_PWR_MGM_POS	6
+
+/* Register bits */
+
+/* DLPF_FS_SYNC */
+#define MPU3050_EXT_SYNC_NONE		0x00
+#define MPU3050_EXT_SYNC_TEMP		0x20
+#define MPU3050_EXT_SYNC_GYROX		0x40
+#define MPU3050_EXT_SYNC_GYROY		0x60
+#define MPU3050_EXT_SYNC_GYROZ		0x80
+#define MPU3050_EXT_SYNC_ACCELX	0xA0
+#define MPU3050_EXT_SYNC_ACCELY	0xC0
+#define MPU3050_EXT_SYNC_ACCELZ	0xE0
+#define MPU3050_EXT_SYNC_MASK		0xE0
+#define MPU3050_FS_250DPS		0x00
+#define MPU3050_FS_500DPS		0x08
+#define MPU3050_FS_1000DPS		0x10
+#define MPU3050_FS_2000DPS		0x18
+#define MPU3050_FS_MASK		0x18
+#define MPU3050_DLPF_CFG_256HZ_NOLPF2	0x00
+#define MPU3050_DLPF_CFG_188HZ		0x01
+#define MPU3050_DLPF_CFG_98HZ		0x02
+#define MPU3050_DLPF_CFG_42HZ		0x03
+#define MPU3050_DLPF_CFG_20HZ		0x04
+#define MPU3050_DLPF_CFG_10HZ		0x05
+#define MPU3050_DLPF_CFG_5HZ		0x06
+#define MPU3050_DLPF_CFG_2100HZ_NOLPF	0x07
+#define MPU3050_DLPF_CFG_MASK		0x07
+/* INT_CFG */
+#define MPU3050_RAW_RDY_EN		0x01
+#define MPU3050_MPU_RDY_EN		0x02
+#define MPU3050_LATCH_INT_EN		0x04
+/* PWR_MGM */
+#define MPU3050_PWR_MGM_PLL_X		0x01
+#define MPU3050_PWR_MGM_PLL_Y		0x02
+#define MPU3050_PWR_MGM_PLL_Z		0x03
+#define MPU3050_PWR_MGM_CLKSEL		0x07
+#define MPU3050_PWR_MGM_STBY_ZG	0x08
+#define MPU3050_PWR_MGM_STBY_YG	0x10
+#define MPU3050_PWR_MGM_STBY_XG	0x20
+#define MPU3050_PWR_MGM_SLEEP		0x40
+#define MPU3050_PWR_MGM_RESET		0x80
+#define MPU3050_PWR_MGM_MASK		0x40
+
 struct axis_data {
 	s16 x;
 	s16 y;
@@ -148,9 +197,20 @@ static void mpu3050_set_power_mode(struct i2c_client *client, u8 val)
 static int mpu3050_input_open(struct input_dev *input)
 {
 	struct mpu3050_sensor *sensor = input_get_drvdata(input);
+	int error;
 
 	pm_runtime_get(sensor->dev);
 
+	/* Enable interrupts */
+	error = i2c_smbus_write_byte_data(sensor->client, MPU3050_INT_CFG,
+					  MPU3050_LATCH_INT_EN |
+					  MPU3050_RAW_RDY_EN |
+					  MPU3050_MPU_RDY_EN);
+	if (error < 0) {
+		pm_runtime_put(sensor->dev);
+		return error;
+	}
+
 	return 0;
 }
 
@@ -192,6 +252,51 @@ static irqreturn_t mpu3050_interrupt_thread(int irq, void *data)
 }
 
 /**
+ *	mpu3050_hw_init	-	initialize hardware
+ *	@sensor: the sensor
+ *
+ *	Called during device probe; configures the sampling method.
+ */
+static int __devinit mpu3050_hw_init(struct mpu3050_sensor *sensor)
+{
+	struct i2c_client *client = sensor->client;
+	int ret;
+	u8 reg;
+
+	/* Reset */
+	ret = i2c_smbus_write_byte_data(client, MPU3050_PWR_MGM,
+					MPU3050_PWR_MGM_RESET);
+	if (ret < 0)
+		return ret;
+
+	ret = i2c_smbus_read_byte_data(client, MPU3050_PWR_MGM);
+	if (ret < 0)
+		return ret;
+
+	ret &= ~MPU3050_PWR_MGM_CLKSEL;
+	ret |= MPU3050_PWR_MGM_PLL_Z;
+	ret = i2c_smbus_write_byte_data(client, MPU3050_PWR_MGM, ret);
+	if (ret < 0)
+		return ret;
+
+	/* Output frequency divider. The poll interval */
+	ret = i2c_smbus_write_byte_data(client, MPU3050_SMPLRT_DIV,
+					MPU3050_DEFAULT_POLL_INTERVAL - 1);
+	if (ret < 0)
+		return ret;
+
+	/* Set low pass filter and full scale */
+	reg = MPU3050_DEFAULT_FS_RANGE;
+	reg |= MPU3050_DLPF_CFG_42HZ << 3;
+	reg |= MPU3050_EXT_SYNC_NONE << 5;
+	ret = i2c_smbus_write_byte_data(client, MPU3050_DLPF_FS_SYNC, reg);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+/**
  *	mpu3050_probe	-	device detection callback
  *	@client: i2c client of found device
  *	@id: id match information
@@ -256,10 +361,14 @@ static int __devinit mpu3050_probe(struct i2c_client *client,
 
 	pm_runtime_set_active(&client->dev);
 
+	error = mpu3050_hw_init(sensor);
+	if (error)
+		goto err_pm_set_suspended;
+
 	error = request_threaded_irq(client->irq,
 				     NULL, mpu3050_interrupt_thread,
 				     IRQF_TRIGGER_RISING,
-				     "mpu_int", sensor);
+				     "mpu3050", sensor);
 	if (error) {
 		dev_err(&client->dev,
 			"can't get IRQ %d, error %d\n", client->irq, error);
@@ -348,11 +457,18 @@ static const struct i2c_device_id mpu3050_ids[] = {
 };
 MODULE_DEVICE_TABLE(i2c, mpu3050_ids);
 
+static const struct of_device_id mpu3050_of_match[] = {
+	{ .compatible = "invn,mpu3050", },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, mpu3050_of_match);
+
 static struct i2c_driver mpu3050_i2c_driver = {
 	.driver	= {
 		.name	= "mpu3050",
 		.owner	= THIS_MODULE,
 		.pm	= &mpu3050_pm,
+		.of_match_table = mpu3050_of_match,
 	},
 	.probe		= mpu3050_probe,
 	.remove		= __devexit_p(mpu3050_remove),
diff --git a/drivers/input/misc/pcap_keys.c b/drivers/input/misc/pcap_keys.c
index 99335c286250..e09b4fe81913 100644
--- a/drivers/input/misc/pcap_keys.c
+++ b/drivers/input/misc/pcap_keys.c
@@ -125,19 +125,7 @@ static struct platform_driver pcap_keys_device_driver = {
 		.owner	= THIS_MODULE,
 	}
 };
-
-static int __init pcap_keys_init(void)
-{
-	return platform_driver_register(&pcap_keys_device_driver);
-};
-
-static void __exit pcap_keys_exit(void)
-{
-	platform_driver_unregister(&pcap_keys_device_driver);
-};
-
-module_init(pcap_keys_init);
-module_exit(pcap_keys_exit);
+module_platform_driver(pcap_keys_device_driver);
 
 MODULE_DESCRIPTION("Motorola PCAP2 input events driver");
 MODULE_AUTHOR("Ilya Petrov <ilya.muromec@gmail.com>");
diff --git a/drivers/input/misc/pcf50633-input.c b/drivers/input/misc/pcf50633-input.c
index 95562735728d..53891de80b0e 100644
--- a/drivers/input/misc/pcf50633-input.c
+++ b/drivers/input/misc/pcf50633-input.c
@@ -113,18 +113,7 @@ static struct platform_driver pcf50633_input_driver = {
 	.probe = pcf50633_input_probe,
 	.remove = __devexit_p(pcf50633_input_remove),
 };
-
-static int __init pcf50633_input_init(void)
-{
-	return platform_driver_register(&pcf50633_input_driver);
-}
-module_init(pcf50633_input_init);
-
-static void __exit pcf50633_input_exit(void)
-{
-	platform_driver_unregister(&pcf50633_input_driver);
-}
-module_exit(pcf50633_input_exit);
+module_platform_driver(pcf50633_input_driver);
 
 MODULE_AUTHOR("Balaji Rao <balajirrao@openmoko.org>");
 MODULE_DESCRIPTION("PCF50633 input driver");
diff --git a/drivers/input/misc/pcspkr.c b/drivers/input/misc/pcspkr.c
index 34f4d2e0f50f..b2484aa07f32 100644
--- a/drivers/input/misc/pcspkr.c
+++ b/drivers/input/misc/pcspkr.c
@@ -134,17 +134,5 @@ static struct platform_driver pcspkr_platform_driver = {
 	.remove		= __devexit_p(pcspkr_remove),
 	.shutdown	= pcspkr_shutdown,
 };
+module_platform_driver(pcspkr_platform_driver);
 
-
-static int __init pcspkr_init(void)
-{
-	return platform_driver_register(&pcspkr_platform_driver);
-}
-
-static void __exit pcspkr_exit(void)
-{
-	platform_driver_unregister(&pcspkr_platform_driver);
-}
-
-module_init(pcspkr_init);
-module_exit(pcspkr_exit);
diff --git a/drivers/input/misc/pm8xxx-vibrator.c b/drivers/input/misc/pm8xxx-vibrator.c
index 43192930824b..dfbfb463ea5d 100644
--- a/drivers/input/misc/pm8xxx-vibrator.c
+++ b/drivers/input/misc/pm8xxx-vibrator.c
@@ -277,18 +277,7 @@ static struct platform_driver pm8xxx_vib_driver = {
 		.pm	= &pm8xxx_vib_pm_ops,
 	},
 };
-
-static int __init pm8xxx_vib_init(void)
-{
-	return platform_driver_register(&pm8xxx_vib_driver);
-}
-module_init(pm8xxx_vib_init);
-
-static void __exit pm8xxx_vib_exit(void)
-{
-	platform_driver_unregister(&pm8xxx_vib_driver);
-}
-module_exit(pm8xxx_vib_exit);
+module_platform_driver(pm8xxx_vib_driver);
 
 MODULE_ALIAS("platform:pm8xxx_vib");
 MODULE_DESCRIPTION("PMIC8xxx vibrator driver based on ff-memless framework");
diff --git a/drivers/input/misc/pmic8xxx-pwrkey.c b/drivers/input/misc/pmic8xxx-pwrkey.c
index b3cfb9c71e66..0f83d0f1d015 100644
--- a/drivers/input/misc/pmic8xxx-pwrkey.c
+++ b/drivers/input/misc/pmic8xxx-pwrkey.c
@@ -213,18 +213,7 @@ static struct platform_driver pmic8xxx_pwrkey_driver = {
 		.pm	= &pm8xxx_pwr_key_pm_ops,
 	},
 };
-
-static int __init pmic8xxx_pwrkey_init(void)
-{
-	return platform_driver_register(&pmic8xxx_pwrkey_driver);
-}
-module_init(pmic8xxx_pwrkey_init);
-
-static void __exit pmic8xxx_pwrkey_exit(void)
-{
-	platform_driver_unregister(&pmic8xxx_pwrkey_driver);
-}
-module_exit(pmic8xxx_pwrkey_exit);
+module_platform_driver(pmic8xxx_pwrkey_driver);
 
 MODULE_ALIAS("platform:pmic8xxx_pwrkey");
 MODULE_DESCRIPTION("PMIC8XXX Power Key driver");
diff --git a/drivers/input/misc/pwm-beeper.c b/drivers/input/misc/pwm-beeper.c
index 57c294f07198..fc84c8a51147 100644
--- a/drivers/input/misc/pwm-beeper.c
+++ b/drivers/input/misc/pwm-beeper.c
@@ -180,18 +180,7 @@ static struct platform_driver pwm_beeper_driver = {
 		.pm	= PWM_BEEPER_PM_OPS,
 	},
 };
-
-static int __init pwm_beeper_init(void)
-{
-	return platform_driver_register(&pwm_beeper_driver);
-}
-module_init(pwm_beeper_init);
-
-static void __exit pwm_beeper_exit(void)
-{
-	platform_driver_unregister(&pwm_beeper_driver);
-}
-module_exit(pwm_beeper_exit);
+module_platform_driver(pwm_beeper_driver);
 
 MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
 MODULE_DESCRIPTION("PWM beeper driver");
diff --git a/drivers/input/misc/rb532_button.c b/drivers/input/misc/rb532_button.c
index e2c7f622a0b5..aeb02bcf7233 100644
--- a/drivers/input/misc/rb532_button.c
+++ b/drivers/input/misc/rb532_button.c
@@ -100,19 +100,7 @@ static struct platform_driver rb532_button_driver = {
 		.owner = THIS_MODULE,
 	},
 };
-
-static int __init rb532_button_init(void)
-{
-	return platform_driver_register(&rb532_button_driver);
-}
-
-static void __exit rb532_button_exit(void)
-{
-	platform_driver_unregister(&rb532_button_driver);
-}
-
-module_init(rb532_button_init);
-module_exit(rb532_button_exit);
+module_platform_driver(rb532_button_driver);
 
 MODULE_AUTHOR("Phil Sutter <n0-1@freewrt.org>");
 MODULE_LICENSE("GPL");
diff --git a/drivers/input/misc/rotary_encoder.c b/drivers/input/misc/rotary_encoder.c
index 2be21694fac1..f07f784198b9 100644
--- a/drivers/input/misc/rotary_encoder.c
+++ b/drivers/input/misc/rotary_encoder.c
@@ -284,19 +284,7 @@ static struct platform_driver rotary_encoder_driver = {
 		.owner	= THIS_MODULE,
 	}
 };
-
-static int __init rotary_encoder_init(void)
-{
-	return platform_driver_register(&rotary_encoder_driver);
-}
-
-static void __exit rotary_encoder_exit(void)
-{
-	platform_driver_unregister(&rotary_encoder_driver);
-}
-
-module_init(rotary_encoder_init);
-module_exit(rotary_encoder_exit);
+module_platform_driver(rotary_encoder_driver);
 
 MODULE_ALIAS("platform:" DRV_NAME);
 MODULE_DESCRIPTION("GPIO rotary encoder driver");
diff --git a/drivers/input/misc/sgi_btns.c b/drivers/input/misc/sgi_btns.c
index 1a80c0dab83b..5d9fd5571199 100644
--- a/drivers/input/misc/sgi_btns.c
+++ b/drivers/input/misc/sgi_btns.c
@@ -164,17 +164,6 @@ static struct platform_driver sgi_buttons_driver = {
 		.owner	= THIS_MODULE,
 	},
 };
-
-static int __init sgi_buttons_init(void)
-{
-	return platform_driver_register(&sgi_buttons_driver);
-}
-
-static void __exit sgi_buttons_exit(void)
-{
-	platform_driver_unregister(&sgi_buttons_driver);
-}
+module_platform_driver(sgi_buttons_driver);
 
 MODULE_LICENSE("GPL");
-module_init(sgi_buttons_init);
-module_exit(sgi_buttons_exit);
diff --git a/drivers/input/misc/twl4030-pwrbutton.c b/drivers/input/misc/twl4030-pwrbutton.c
index 38e4b507b94c..19a68828cd86 100644
--- a/drivers/input/misc/twl4030-pwrbutton.c
+++ b/drivers/input/misc/twl4030-pwrbutton.c
@@ -107,25 +107,14 @@ static int __exit twl4030_pwrbutton_remove(struct platform_device *pdev)
 }
 
 static struct platform_driver twl4030_pwrbutton_driver = {
+	.probe		= twl4030_pwrbutton_probe,
 	.remove		= __exit_p(twl4030_pwrbutton_remove),
 	.driver		= {
 		.name	= "twl4030_pwrbutton",
 		.owner	= THIS_MODULE,
 	},
 };
-
-static int __init twl4030_pwrbutton_init(void)
-{
-	return platform_driver_probe(&twl4030_pwrbutton_driver,
-			twl4030_pwrbutton_probe);
-}
-module_init(twl4030_pwrbutton_init);
-
-static void __exit twl4030_pwrbutton_exit(void)
-{
-	platform_driver_unregister(&twl4030_pwrbutton_driver);
-}
-module_exit(twl4030_pwrbutton_exit);
+module_platform_driver(twl4030_pwrbutton_driver);
 
 MODULE_ALIAS("platform:twl4030_pwrbutton");
 MODULE_DESCRIPTION("Triton2 Power Button");
diff --git a/drivers/input/misc/twl4030-vibra.c b/drivers/input/misc/twl4030-vibra.c
index 3c1a432c14dc..37651373a95b 100644
--- a/drivers/input/misc/twl4030-vibra.c
+++ b/drivers/input/misc/twl4030-vibra.c
@@ -278,21 +278,9 @@ static struct platform_driver twl4030_vibra_driver = {
 #endif
 	},
 };
-
-static int __init twl4030_vibra_init(void)
-{
-	return platform_driver_register(&twl4030_vibra_driver);
-}
-module_init(twl4030_vibra_init);
-
-static void __exit twl4030_vibra_exit(void)
-{
-	platform_driver_unregister(&twl4030_vibra_driver);
-}
-module_exit(twl4030_vibra_exit);
+module_platform_driver(twl4030_vibra_driver);
 
 MODULE_ALIAS("platform:twl4030-vibra");
-
 MODULE_DESCRIPTION("TWL4030 Vibra driver");
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Nokia Corporation");
diff --git a/drivers/input/misc/twl6040-vibra.c b/drivers/input/misc/twl6040-vibra.c
index ad153a417eed..45874fed523a 100644
--- a/drivers/input/misc/twl6040-vibra.c
+++ b/drivers/input/misc/twl6040-vibra.c
@@ -410,18 +410,7 @@ static struct platform_driver twl6040_vibra_driver = {
 		.pm	= &twl6040_vibra_pm_ops,
 	},
 };
-
-static int __init twl6040_vibra_init(void)
-{
-	return platform_driver_register(&twl6040_vibra_driver);
-}
-module_init(twl6040_vibra_init);
-
-static void __exit twl6040_vibra_exit(void)
-{
-	platform_driver_unregister(&twl6040_vibra_driver);
-}
-module_exit(twl6040_vibra_exit);
+module_platform_driver(twl6040_vibra_driver);
 
 MODULE_ALIAS("platform:twl6040-vibra");
 MODULE_DESCRIPTION("TWL6040 Vibra driver");
diff --git a/drivers/input/misc/wm831x-on.c b/drivers/input/misc/wm831x-on.c
index c3d7ba5f5b47..47f18d6bce46 100644
--- a/drivers/input/misc/wm831x-on.c
+++ b/drivers/input/misc/wm831x-on.c
@@ -145,18 +145,7 @@ static struct platform_driver wm831x_on_driver = {
 		.owner	= THIS_MODULE,
 	},
 };
-
-static int __init wm831x_on_init(void)
-{
-	return platform_driver_register(&wm831x_on_driver);
-}
-module_init(wm831x_on_init);
-
-static void __exit wm831x_on_exit(void)
-{
-	platform_driver_unregister(&wm831x_on_driver);
-}
-module_exit(wm831x_on_exit);
+module_platform_driver(wm831x_on_driver);
 
 MODULE_ALIAS("platform:wm831x-on");
 MODULE_DESCRIPTION("WM831x ON pin");
diff --git a/drivers/input/misc/xen-kbdfront.c b/drivers/input/misc/xen-kbdfront.c
index ad2e51c04db8..02ca8680ea5b 100644
--- a/drivers/input/misc/xen-kbdfront.c
+++ b/drivers/input/misc/xen-kbdfront.c
@@ -361,15 +361,12 @@ static const struct xenbus_device_id xenkbd_ids[] = {
 	{ "" }
 };
 
-static struct xenbus_driver xenkbd_driver = {
-	.name = "vkbd",
-	.owner = THIS_MODULE,
-	.ids = xenkbd_ids,
+static DEFINE_XENBUS_DRIVER(xenkbd, ,
 	.probe = xenkbd_probe,
 	.remove = xenkbd_remove,
 	.resume = xenkbd_resume,
 	.otherend_changed = xenkbd_backend_changed,
-};
+);
 
 static int __init xenkbd_init(void)
 {
diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index 003587c71f43..bd87380bd879 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -17,13 +17,63 @@
 
 #include <linux/slab.h>
 #include <linux/input.h>
+#include <linux/input/mt.h>
 #include <linux/serio.h>
 #include <linux/libps2.h>
 
 #include "psmouse.h"
 #include "alps.h"
 
-#define ALPS_OLDPROTO		0x01	/* old style input */
+/*
+ * Definitions for ALPS version 3 and 4 command mode protocol
+ */
+#define ALPS_V3_X_MAX	2000
+#define ALPS_V3_Y_MAX	1400
+
+#define ALPS_BITMAP_X_BITS	15
+#define ALPS_BITMAP_Y_BITS	11
+
+#define ALPS_CMD_NIBBLE_10	0x01f2
+
+static const struct alps_nibble_commands alps_v3_nibble_commands[] = {
+	{ PSMOUSE_CMD_SETPOLL,		0x00 }, /* 0 */
+	{ PSMOUSE_CMD_RESET_DIS,	0x00 }, /* 1 */
+	{ PSMOUSE_CMD_SETSCALE21,	0x00 }, /* 2 */
+	{ PSMOUSE_CMD_SETRATE,		0x0a }, /* 3 */
+	{ PSMOUSE_CMD_SETRATE,		0x14 }, /* 4 */
+	{ PSMOUSE_CMD_SETRATE,		0x28 }, /* 5 */
+	{ PSMOUSE_CMD_SETRATE,		0x3c }, /* 6 */
+	{ PSMOUSE_CMD_SETRATE,		0x50 }, /* 7 */
+	{ PSMOUSE_CMD_SETRATE,		0x64 }, /* 8 */
+	{ PSMOUSE_CMD_SETRATE,		0xc8 }, /* 9 */
+	{ ALPS_CMD_NIBBLE_10,		0x00 }, /* a */
+	{ PSMOUSE_CMD_SETRES,		0x00 }, /* b */
+	{ PSMOUSE_CMD_SETRES,		0x01 }, /* c */
+	{ PSMOUSE_CMD_SETRES,		0x02 }, /* d */
+	{ PSMOUSE_CMD_SETRES,		0x03 }, /* e */
+	{ PSMOUSE_CMD_SETSCALE11,	0x00 }, /* f */
+};
+
+static const struct alps_nibble_commands alps_v4_nibble_commands[] = {
+	{ PSMOUSE_CMD_ENABLE,		0x00 }, /* 0 */
+	{ PSMOUSE_CMD_RESET_DIS,	0x00 }, /* 1 */
+	{ PSMOUSE_CMD_SETSCALE21,	0x00 }, /* 2 */
+	{ PSMOUSE_CMD_SETRATE,		0x0a }, /* 3 */
+	{ PSMOUSE_CMD_SETRATE,		0x14 }, /* 4 */
+	{ PSMOUSE_CMD_SETRATE,		0x28 }, /* 5 */
+	{ PSMOUSE_CMD_SETRATE,		0x3c }, /* 6 */
+	{ PSMOUSE_CMD_SETRATE,		0x50 }, /* 7 */
+	{ PSMOUSE_CMD_SETRATE,		0x64 }, /* 8 */
+	{ PSMOUSE_CMD_SETRATE,		0xc8 }, /* 9 */
+	{ ALPS_CMD_NIBBLE_10,		0x00 }, /* a */
+	{ PSMOUSE_CMD_SETRES,		0x00 }, /* b */
+	{ PSMOUSE_CMD_SETRES,		0x01 }, /* c */
+	{ PSMOUSE_CMD_SETRES,		0x02 }, /* d */
+	{ PSMOUSE_CMD_SETRES,		0x03 }, /* e */
+	{ PSMOUSE_CMD_SETSCALE11,	0x00 }, /* f */
+};
+
+
 #define ALPS_DUALPOINT		0x02	/* touchpad has trackstick */
 #define ALPS_PASS		0x04	/* device has a pass-through port */
 
@@ -35,30 +85,33 @@
 					   6-byte ALPS packet */
 
 static const struct alps_model_info alps_model_data[] = {
-	{ { 0x32, 0x02, 0x14 },	0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* Toshiba Salellite Pro M10 */
-	{ { 0x33, 0x02, 0x0a },	0x88, 0xf8, ALPS_OLDPROTO },		  /* UMAX-530T */
-	{ { 0x53, 0x02, 0x0a },	0xf8, 0xf8, 0 },
-	{ { 0x53, 0x02, 0x14 },	0xf8, 0xf8, 0 },
-	{ { 0x60, 0x03, 0xc8 }, 0xf8, 0xf8, 0 },			  /* HP ze1115 */
-	{ { 0x63, 0x02, 0x0a },	0xf8, 0xf8, 0 },
-	{ { 0x63, 0x02, 0x14 },	0xf8, 0xf8, 0 },
-	{ { 0x63, 0x02, 0x28 },	0xf8, 0xf8, ALPS_FW_BK_2 },		  /* Fujitsu Siemens S6010 */
-	{ { 0x63, 0x02, 0x3c },	0x8f, 0x8f, ALPS_WHEEL },		  /* Toshiba Satellite S2400-103 */
-	{ { 0x63, 0x02, 0x50 },	0xef, 0xef, ALPS_FW_BK_1 },		  /* NEC Versa L320 */
-	{ { 0x63, 0x02, 0x64 },	0xf8, 0xf8, 0 },
-	{ { 0x63, 0x03, 0xc8 }, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D800 */
-	{ { 0x73, 0x00, 0x0a },	0xf8, 0xf8, ALPS_DUALPOINT },		  /* ThinkPad R61 8918-5QG */
-	{ { 0x73, 0x02, 0x0a },	0xf8, 0xf8, 0 },
-	{ { 0x73, 0x02, 0x14 },	0xf8, 0xf8, ALPS_FW_BK_2 },		  /* Ahtec Laptop */
-	{ { 0x20, 0x02, 0x0e },	0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT }, /* XXX */
-	{ { 0x22, 0x02, 0x0a },	0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT },
-	{ { 0x22, 0x02, 0x14 }, 0xff, 0xff, ALPS_PASS | ALPS_DUALPOINT }, /* Dell Latitude D600 */
+	{ { 0x32, 0x02, 0x14 },	0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT },	/* Toshiba Salellite Pro M10 */
+	{ { 0x33, 0x02, 0x0a },	0x00, ALPS_PROTO_V1, 0x88, 0xf8, 0 },				/* UMAX-530T */
+	{ { 0x53, 0x02, 0x0a },	0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 },
+	{ { 0x53, 0x02, 0x14 },	0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 },
+	{ { 0x60, 0x03, 0xc8 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 },				/* HP ze1115 */
+	{ { 0x63, 0x02, 0x0a },	0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 },
+	{ { 0x63, 0x02, 0x14 },	0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 },
+	{ { 0x63, 0x02, 0x28 },	0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_FW_BK_2 },		/* Fujitsu Siemens S6010 */
+	{ { 0x63, 0x02, 0x3c },	0x00, ALPS_PROTO_V2, 0x8f, 0x8f, ALPS_WHEEL },			/* Toshiba Satellite S2400-103 */
+	{ { 0x63, 0x02, 0x50 },	0x00, ALPS_PROTO_V2, 0xef, 0xef, ALPS_FW_BK_1 },		/* NEC Versa L320 */
+	{ { 0x63, 0x02, 0x64 },	0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 },
+	{ { 0x63, 0x03, 0xc8 }, 0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT },	/* Dell Latitude D800 */
+	{ { 0x73, 0x00, 0x0a },	0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_DUALPOINT },		/* ThinkPad R61 8918-5QG */
+	{ { 0x73, 0x02, 0x0a },	0x00, ALPS_PROTO_V2, 0xf8, 0xf8, 0 },
+	{ { 0x73, 0x02, 0x14 },	0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_FW_BK_2 },		/* Ahtec Laptop */
+	{ { 0x20, 0x02, 0x0e },	0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT },	/* XXX */
+	{ { 0x22, 0x02, 0x0a },	0x00, ALPS_PROTO_V2, 0xf8, 0xf8, ALPS_PASS | ALPS_DUALPOINT },
+	{ { 0x22, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xff, 0xff, ALPS_PASS | ALPS_DUALPOINT },	/* Dell Latitude D600 */
 	/* Dell Latitude E5500, E6400, E6500, Precision M4400 */
-	{ { 0x62, 0x02, 0x14 }, 0xcf, 0xcf,
+	{ { 0x62, 0x02, 0x14 }, 0x00, ALPS_PROTO_V2, 0xcf, 0xcf,
 		ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED },
-	{ { 0x73, 0x02, 0x50 }, 0xcf, 0xcf, ALPS_FOUR_BUTTONS },	  /* Dell Vostro 1400 */
-	{ { 0x52, 0x01, 0x14 }, 0xff, 0xff,
-		ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED },	  /* Toshiba Tecra A11-11L */
+	{ { 0x73, 0x02, 0x50 }, 0x00, ALPS_PROTO_V2, 0xcf, 0xcf, ALPS_FOUR_BUTTONS },		/* Dell Vostro 1400 */
+	{ { 0x52, 0x01, 0x14 }, 0x00, ALPS_PROTO_V2, 0xff, 0xff,
+		ALPS_PASS | ALPS_DUALPOINT | ALPS_PS2_INTERLEAVED },				/* Toshiba Tecra A11-11L */
+	{ { 0x73, 0x02, 0x64 },	0x9b, ALPS_PROTO_V3, 0x8f, 0x8f, ALPS_DUALPOINT },
+	{ { 0x73, 0x02, 0x64 },	0x9d, ALPS_PROTO_V3, 0x8f, 0x8f, ALPS_DUALPOINT },
+	{ { 0x73, 0x02, 0x64 },	0x8a, ALPS_PROTO_V4, 0x8f, 0x8f, 0 },
 };
 
 /*
@@ -67,42 +120,7 @@ static const struct alps_model_info alps_model_data[] = {
  * isn't valid per PS/2 spec.
  */
 
-/*
- * PS/2 packet format
- *
- * byte 0:  0    0 YSGN XSGN    1    M    R    L
- * byte 1: X7   X6   X5   X4   X3   X2   X1   X0
- * byte 2: Y7   Y6   Y5   Y4   Y3   Y2   Y1   Y0
- *
- * Note that the device never signals overflow condition.
- *
- * ALPS absolute Mode - new format
- *
- * byte 0:  1    ?    ?    ?    1    ?    ?    ?
- * byte 1:  0   x6   x5   x4   x3   x2   x1   x0
- * byte 2:  0  x10   x9   x8   x7    ?  fin  ges
- * byte 3:  0   y9   y8   y7    1    M    R    L
- * byte 4:  0   y6   y5   y4   y3   y2   y1   y0
- * byte 5:  0   z6   z5   z4   z3   z2   z1   z0
- *
- * Dualpoint device -- interleaved packet format
- *
- * byte 0:    1    1    0    0    1    1    1    1
- * byte 1:    0   x6   x5   x4   x3   x2   x1   x0
- * byte 2:    0  x10   x9   x8   x7    0  fin  ges
- * byte 3:    0    0 YSGN XSGN    1    1    1    1
- * byte 4:   X7   X6   X5   X4   X3   X2   X1   X0
- * byte 5:   Y7   Y6   Y5   Y4   Y3   Y2   Y1   Y0
- * byte 6:    0   y9   y8   y7    1    m    r    l
- * byte 7:    0   y6   y5   y4   y3   y2   y1   y0
- * byte 8:    0   z6   z5   z4   z3   z2   z1   z0
- *
- * CAPITALS = stick, miniscules = touchpad
- *
- * ?'s can have different meanings on different models,
- * such as wheel rotation, extra buttons, stick buttons
- * on a dualpoint, etc.
- */
+/* Packet formats are described in Documentation/input/alps.txt */
 
 static bool alps_is_valid_first_byte(const struct alps_model_info *model,
 				     unsigned char data)
@@ -137,7 +155,7 @@ static void alps_report_buttons(struct psmouse *psmouse,
 	input_sync(dev2);
 }
 
-static void alps_process_packet(struct psmouse *psmouse)
+static void alps_process_packet_v1_v2(struct psmouse *psmouse)
 {
 	struct alps_data *priv = psmouse->private;
 	const struct alps_model_info *model = priv->i;
@@ -147,7 +165,7 @@ static void alps_process_packet(struct psmouse *psmouse)
 	int x, y, z, ges, fin, left, right, middle;
 	int back = 0, forward = 0;
 
-	if (model->flags & ALPS_OLDPROTO) {
+	if (model->proto_version == ALPS_PROTO_V1) {
 		left = packet[2] & 0x10;
 		right = packet[2] & 0x08;
 		middle = 0;
@@ -239,6 +257,403 @@ static void alps_process_packet(struct psmouse *psmouse)
 	input_sync(dev);
 }
 
+/*
+ * Process bitmap data from v3 and v4 protocols. Returns the number of
+ * fingers detected. A return value of 0 means at least one of the
+ * bitmaps was empty.
+ *
+ * The bitmaps don't have enough data to track fingers, so this function
+ * only generates points representing a bounding box of all contacts.
+ * These points are returned in x1, y1, x2, and y2 when the return value
+ * is greater than 0.
+ */
+static int alps_process_bitmap(unsigned int x_map, unsigned int y_map,
+			       int *x1, int *y1, int *x2, int *y2)
+{
+	struct alps_bitmap_point {
+		int start_bit;
+		int num_bits;
+	};
+
+	int fingers_x = 0, fingers_y = 0, fingers;
+	int i, bit, prev_bit;
+	struct alps_bitmap_point x_low = {0,}, x_high = {0,};
+	struct alps_bitmap_point y_low = {0,}, y_high = {0,};
+	struct alps_bitmap_point *point;
+
+	if (!x_map || !y_map)
+		return 0;
+
+	*x1 = *y1 = *x2 = *y2 = 0;
+
+	prev_bit = 0;
+	point = &x_low;
+	for (i = 0; x_map != 0; i++, x_map >>= 1) {
+		bit = x_map & 1;
+		if (bit) {
+			if (!prev_bit) {
+				point->start_bit = i;
+				fingers_x++;
+			}
+			point->num_bits++;
+		} else {
+			if (prev_bit)
+				point = &x_high;
+			else
+				point->num_bits = 0;
+		}
+		prev_bit = bit;
+	}
+
+	/*
+	 * y bitmap is reversed for what we need (lower positions are in
+	 * higher bits), so we process from the top end.
+	 */
+	y_map = y_map << (sizeof(y_map) * BITS_PER_BYTE - ALPS_BITMAP_Y_BITS);
+	prev_bit = 0;
+	point = &y_low;
+	for (i = 0; y_map != 0; i++, y_map <<= 1) {
+		bit = y_map & (1 << (sizeof(y_map) * BITS_PER_BYTE - 1));
+		if (bit) {
+			if (!prev_bit) {
+				point->start_bit = i;
+				fingers_y++;
+			}
+			point->num_bits++;
+		} else {
+			if (prev_bit)
+				point = &y_high;
+			else
+				point->num_bits = 0;
+		}
+		prev_bit = bit;
+	}
+
+	/*
+	 * Fingers can overlap, so we use the maximum count of fingers
+	 * on either axis as the finger count.
+	 */
+	fingers = max(fingers_x, fingers_y);
+
+	/*
+	 * If total fingers is > 1 but either axis reports only a single
+	 * contact, we have overlapping or adjacent fingers. For the
+	 * purposes of creating a bounding box, divide the single contact
+	 * (roughly) equally between the two points.
+	 */
+	if (fingers > 1) {
+		if (fingers_x == 1) {
+			i = x_low.num_bits / 2;
+			x_low.num_bits = x_low.num_bits - i;
+			x_high.start_bit = x_low.start_bit + i;
+			x_high.num_bits = max(i, 1);
+		} else if (fingers_y == 1) {
+			i = y_low.num_bits / 2;
+			y_low.num_bits = y_low.num_bits - i;
+			y_high.start_bit = y_low.start_bit + i;
+			y_high.num_bits = max(i, 1);
+		}
+	}
+
+	*x1 = (ALPS_V3_X_MAX * (2 * x_low.start_bit + x_low.num_bits - 1)) /
+	      (2 * (ALPS_BITMAP_X_BITS - 1));
+	*y1 = (ALPS_V3_Y_MAX * (2 * y_low.start_bit + y_low.num_bits - 1)) /
+	      (2 * (ALPS_BITMAP_Y_BITS - 1));
+
+	if (fingers > 1) {
+		*x2 = (ALPS_V3_X_MAX * (2 * x_high.start_bit + x_high.num_bits - 1)) /
+		      (2 * (ALPS_BITMAP_X_BITS - 1));
+		*y2 = (ALPS_V3_Y_MAX * (2 * y_high.start_bit + y_high.num_bits - 1)) /
+		      (2 * (ALPS_BITMAP_Y_BITS - 1));
+	}
+
+	return fingers;
+}
+
+static void alps_set_slot(struct input_dev *dev, int slot, bool active,
+			  int x, int y)
+{
+	input_mt_slot(dev, slot);
+	input_mt_report_slot_state(dev, MT_TOOL_FINGER, active);
+	if (active) {
+		input_report_abs(dev, ABS_MT_POSITION_X, x);
+		input_report_abs(dev, ABS_MT_POSITION_Y, y);
+	}
+}
+
+static void alps_report_semi_mt_data(struct input_dev *dev, int num_fingers,
+				     int x1, int y1, int x2, int y2)
+{
+	alps_set_slot(dev, 0, num_fingers != 0, x1, y1);
+	alps_set_slot(dev, 1, num_fingers == 2, x2, y2);
+}
+
+static void alps_process_trackstick_packet_v3(struct psmouse *psmouse)
+{
+	struct alps_data *priv = psmouse->private;
+	unsigned char *packet = psmouse->packet;
+	struct input_dev *dev = priv->dev2;
+	int x, y, z, left, right, middle;
+
+	/* Sanity check packet */
+	if (!(packet[0] & 0x40)) {
+		psmouse_dbg(psmouse, "Bad trackstick packet, discarding\n");
+		return;
+	}
+
+	/*
+	 * There's a special packet that seems to indicate the end
+	 * of a stream of trackstick data. Filter these out.
+	 */
+	if (packet[1] == 0x7f && packet[2] == 0x7f && packet[4] == 0x7f)
+		return;
+
+	x = (s8)(((packet[0] & 0x20) << 2) | (packet[1] & 0x7f));
+	y = (s8)(((packet[0] & 0x10) << 3) | (packet[2] & 0x7f));
+	z = (packet[4] & 0x7c) >> 2;
+
+	/*
+	 * The x and y values tend to be quite large, and when used
+	 * alone the trackstick is difficult to use. Scale them down
+	 * to compensate.
+	 */
+	x /= 8;
+	y /= 8;
+
+	input_report_rel(dev, REL_X, x);
+	input_report_rel(dev, REL_Y, -y);
+
+	/*
+	 * Most ALPS models report the trackstick buttons in the touchpad
+	 * packets, but a few report them here. No reliable way has been
+	 * found to differentiate between the models upfront, so we enable
+	 * the quirk in response to seeing a button press in the trackstick
+	 * packet.
+	 */
+	left = packet[3] & 0x01;
+	right = packet[3] & 0x02;
+	middle = packet[3] & 0x04;
+
+	if (!(priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS) &&
+	    (left || right || middle))
+		priv->quirks |= ALPS_QUIRK_TRACKSTICK_BUTTONS;
+
+	if (priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS) {
+		input_report_key(dev, BTN_LEFT, left);
+		input_report_key(dev, BTN_RIGHT, right);
+		input_report_key(dev, BTN_MIDDLE, middle);
+	}
+
+	input_sync(dev);
+	return;
+}
+
+static void alps_process_touchpad_packet_v3(struct psmouse *psmouse)
+{
+	struct alps_data *priv = psmouse->private;
+	unsigned char *packet = psmouse->packet;
+	struct input_dev *dev = psmouse->dev;
+	struct input_dev *dev2 = priv->dev2;
+	int x, y, z;
+	int left, right, middle;
+	int x1 = 0, y1 = 0, x2 = 0, y2 = 0;
+	int fingers = 0, bmap_fingers;
+	unsigned int x_bitmap, y_bitmap;
+
+	/*
+	 * There's no single feature of touchpad position and bitmap packets
+	 * that can be used to distinguish between them. We rely on the fact
+	 * that a bitmap packet should always follow a position packet with
+	 * bit 6 of packet[4] set.
+	 */
+	if (priv->multi_packet) {
+		/*
+		 * Sometimes a position packet will indicate a multi-packet
+		 * sequence, but then what follows is another position
+		 * packet. Check for this, and when it happens process the
+		 * position packet as usual.
+		 */
+		if (packet[0] & 0x40) {
+			fingers = (packet[5] & 0x3) + 1;
+			x_bitmap = ((packet[4] & 0x7e) << 8) |
+				   ((packet[1] & 0x7f) << 2) |
+				   ((packet[0] & 0x30) >> 4);
+			y_bitmap = ((packet[3] & 0x70) << 4) |
+				   ((packet[2] & 0x7f) << 1) |
+				   (packet[4] & 0x01);
+
+			bmap_fingers = alps_process_bitmap(x_bitmap, y_bitmap,
+							   &x1, &y1, &x2, &y2);
+
+			/*
+			 * We shouldn't report more than one finger if
+			 * we don't have two coordinates.
+			 */
+			if (fingers > 1 && bmap_fingers < 2)
+				fingers = bmap_fingers;
+
+			/* Now process position packet */
+			packet = priv->multi_data;
+		} else {
+			priv->multi_packet = 0;
+		}
+	}
+
+	/*
+	 * Bit 6 of byte 0 is not usually set in position packets. The only
+	 * times it seems to be set is in situations where the data is
+	 * suspect anyway, e.g. a palm resting flat on the touchpad. Given
+	 * this combined with the fact that this bit is useful for filtering
+	 * out misidentified bitmap packets, we reject anything with this
+	 * bit set.
+	 */
+	if (packet[0] & 0x40)
+		return;
+
+	if (!priv->multi_packet && (packet[4] & 0x40)) {
+		priv->multi_packet = 1;
+		memcpy(priv->multi_data, packet, sizeof(priv->multi_data));
+		return;
+	}
+
+	priv->multi_packet = 0;
+
+	left = packet[3] & 0x01;
+	right = packet[3] & 0x02;
+	middle = packet[3] & 0x04;
+
+	x = ((packet[1] & 0x7f) << 4) | ((packet[4] & 0x30) >> 2) |
+	    ((packet[0] & 0x30) >> 4);
+	y = ((packet[2] & 0x7f) << 4) | (packet[4] & 0x0f);
+	z = packet[5] & 0x7f;
+
+	/*
+	 * Sometimes the hardware sends a single packet with z = 0
+	 * in the middle of a stream. Real releases generate packets
+	 * with x, y, and z all zero, so these seem to be flukes.
+	 * Ignore them.
+	 */
+	if (x && y && !z)
+		return;
+
+	/*
+	 * If we don't have MT data or the bitmaps were empty, we have
+	 * to rely on ST data.
+	 */
+	if (!fingers) {
+		x1 = x;
+		y1 = y;
+		fingers = z > 0 ? 1 : 0;
+	}
+
+	if (z >= 64)
+		input_report_key(dev, BTN_TOUCH, 1);
+	else
+		input_report_key(dev, BTN_TOUCH, 0);
+
+	alps_report_semi_mt_data(dev, fingers, x1, y1, x2, y2);
+
+	input_report_key(dev, BTN_TOOL_FINGER, fingers == 1);
+	input_report_key(dev, BTN_TOOL_DOUBLETAP, fingers == 2);
+	input_report_key(dev, BTN_TOOL_TRIPLETAP, fingers == 3);
+	input_report_key(dev, BTN_TOOL_QUADTAP, fingers == 4);
+
+	input_report_key(dev, BTN_LEFT, left);
+	input_report_key(dev, BTN_RIGHT, right);
+	input_report_key(dev, BTN_MIDDLE, middle);
+
+	if (z > 0) {
+		input_report_abs(dev, ABS_X, x);
+		input_report_abs(dev, ABS_Y, y);
+	}
+	input_report_abs(dev, ABS_PRESSURE, z);
+
+	input_sync(dev);
+
+	if (!(priv->quirks & ALPS_QUIRK_TRACKSTICK_BUTTONS)) {
+		left = packet[3] & 0x10;
+		right = packet[3] & 0x20;
+		middle = packet[3] & 0x40;
+
+		input_report_key(dev2, BTN_LEFT, left);
+		input_report_key(dev2, BTN_RIGHT, right);
+		input_report_key(dev2, BTN_MIDDLE, middle);
+		input_sync(dev2);
+	}
+}
+
+static void alps_process_packet_v3(struct psmouse *psmouse)
+{
+	unsigned char *packet = psmouse->packet;
+
+	/*
+	 * v3 protocol packets come in three types, two representing
+	 * touchpad data and one representing trackstick data.
+	 * Trackstick packets seem to be distinguished by always
+	 * having 0x3f in the last byte. This value has never been
+	 * observed in the last byte of either of the other types
+	 * of packets.
+	 */
+	if (packet[5] == 0x3f) {
+		alps_process_trackstick_packet_v3(psmouse);
+		return;
+	}
+
+	alps_process_touchpad_packet_v3(psmouse);
+}
+
+static void alps_process_packet_v4(struct psmouse *psmouse)
+{
+	unsigned char *packet = psmouse->packet;
+	struct input_dev *dev = psmouse->dev;
+	int x, y, z;
+	int left, right;
+
+	left = packet[4] & 0x01;
+	right = packet[4] & 0x02;
+
+	x = ((packet[1] & 0x7f) << 4) | ((packet[3] & 0x30) >> 2) |
+	    ((packet[0] & 0x30) >> 4);
+	y = ((packet[2] & 0x7f) << 4) | (packet[3] & 0x0f);
+	z = packet[5] & 0x7f;
+
+	if (z >= 64)
+		input_report_key(dev, BTN_TOUCH, 1);
+	else
+		input_report_key(dev, BTN_TOUCH, 0);
+
+	if (z > 0) {
+		input_report_abs(dev, ABS_X, x);
+		input_report_abs(dev, ABS_Y, y);
+	}
+	input_report_abs(dev, ABS_PRESSURE, z);
+
+	input_report_key(dev, BTN_TOOL_FINGER, z > 0);
+	input_report_key(dev, BTN_LEFT, left);
+	input_report_key(dev, BTN_RIGHT, right);
+
+	input_sync(dev);
+}
+
+static void alps_process_packet(struct psmouse *psmouse)
+{
+	struct alps_data *priv = psmouse->private;
+	const struct alps_model_info *model = priv->i;
+
+	switch (model->proto_version) {
+	case ALPS_PROTO_V1:
+	case ALPS_PROTO_V2:
+		alps_process_packet_v1_v2(psmouse);
+		break;
+	case ALPS_PROTO_V3:
+		alps_process_packet_v3(psmouse);
+		break;
+	case ALPS_PROTO_V4:
+		alps_process_packet_v4(psmouse);
+		break;
+	}
+}
+
 static void alps_report_bare_ps2_packet(struct psmouse *psmouse,
 					unsigned char packet[],
 					bool report_buttons)
@@ -344,7 +759,7 @@ static void alps_flush_packet(unsigned long data)
 
 	serio_pause_rx(psmouse->ps2dev.serio);
 
-	if (psmouse->pktcnt == 6) {
+	if (psmouse->pktcnt == psmouse->pktsize) {
 
 		/*
 		 * We did not any more data in reasonable amount of time.
@@ -395,8 +810,8 @@ static psmouse_ret_t alps_process_byte(struct psmouse *psmouse)
 		return PSMOUSE_BAD_DATA;
 	}
 
-	/* Bytes 2 - 6 should have 0 in the highest bit */
-	if (psmouse->pktcnt >= 2 && psmouse->pktcnt <= 6 &&
+	/* Bytes 2 - pktsize should have 0 in the highest bit */
+	if (psmouse->pktcnt >= 2 && psmouse->pktcnt <= psmouse->pktsize &&
 	    (psmouse->packet[psmouse->pktcnt - 1] & 0x80)) {
 		psmouse_dbg(psmouse, "refusing packet[%i] = %x\n",
 			    psmouse->pktcnt - 1,
@@ -404,7 +819,7 @@ static psmouse_ret_t alps_process_byte(struct psmouse *psmouse)
 		return PSMOUSE_BAD_DATA;
 	}
 
-	if (psmouse->pktcnt == 6) {
+	if (psmouse->pktcnt == psmouse->pktsize) {
 		alps_process_packet(psmouse);
 		return PSMOUSE_FULL_PACKET;
 	}
@@ -412,11 +827,127 @@ static psmouse_ret_t alps_process_byte(struct psmouse *psmouse)
 	return PSMOUSE_GOOD_DATA;
 }
 
+static int alps_command_mode_send_nibble(struct psmouse *psmouse, int nibble)
+{
+	struct ps2dev *ps2dev = &psmouse->ps2dev;
+	struct alps_data *priv = psmouse->private;
+	int command;
+	unsigned char *param;
+	unsigned char dummy[4];
+
+	BUG_ON(nibble > 0xf);
+
+	command = priv->nibble_commands[nibble].command;
+	param = (command & 0x0f00) ?
+		dummy : (unsigned char *)&priv->nibble_commands[nibble].data;
+
+	if (ps2_command(ps2dev, param, command))
+		return -1;
+
+	return 0;
+}
+
+static int alps_command_mode_set_addr(struct psmouse *psmouse, int addr)
+{
+	struct ps2dev *ps2dev = &psmouse->ps2dev;
+	struct alps_data *priv = psmouse->private;
+	int i, nibble;
+
+	if (ps2_command(ps2dev, NULL, priv->addr_command))
+		return -1;
+
+	for (i = 12; i >= 0; i -= 4) {
+		nibble = (addr >> i) & 0xf;
+		if (alps_command_mode_send_nibble(psmouse, nibble))
+			return -1;
+	}
+
+	return 0;
+}
+
+static int __alps_command_mode_read_reg(struct psmouse *psmouse, int addr)
+{
+	struct ps2dev *ps2dev = &psmouse->ps2dev;
+	unsigned char param[4];
+
+	if (ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO))
+		return -1;
+
+	/*
+	 * The address being read is returned in the first two bytes
+	 * of the result. Check that this address matches the expected
+	 * address.
+	 */
+	if (addr != ((param[0] << 8) | param[1]))
+		return -1;
+
+	return param[2];
+}
+
+static int alps_command_mode_read_reg(struct psmouse *psmouse, int addr)
+{
+	if (alps_command_mode_set_addr(psmouse, addr))
+		return -1;
+	return __alps_command_mode_read_reg(psmouse, addr);
+}
+
+static int __alps_command_mode_write_reg(struct psmouse *psmouse, u8 value)
+{
+	if (alps_command_mode_send_nibble(psmouse, (value >> 4) & 0xf))
+		return -1;
+	if (alps_command_mode_send_nibble(psmouse, value & 0xf))
+		return -1;
+	return 0;
+}
+
+static int alps_command_mode_write_reg(struct psmouse *psmouse, int addr,
+				       u8 value)
+{
+	if (alps_command_mode_set_addr(psmouse, addr))
+		return -1;
+	return __alps_command_mode_write_reg(psmouse, value);
+}
+
+static int alps_enter_command_mode(struct psmouse *psmouse,
+				   unsigned char *resp)
+{
+	unsigned char param[4];
+	struct ps2dev *ps2dev = &psmouse->ps2dev;
+
+	if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP) ||
+	    ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP) ||
+	    ps2_command(ps2dev, NULL, PSMOUSE_CMD_RESET_WRAP) ||
+	    ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) {
+		psmouse_err(psmouse, "failed to enter command mode\n");
+		return -1;
+	}
+
+	if (param[0] != 0x88 && param[1] != 0x07) {
+		psmouse_dbg(psmouse,
+			    "unknown response while entering command mode: %2.2x %2.2x %2.2x\n",
+			    param[0], param[1], param[2]);
+		return -1;
+	}
+
+	if (resp)
+		*resp = param[2];
+	return 0;
+}
+
+static inline int alps_exit_command_mode(struct psmouse *psmouse)
+{
+	struct ps2dev *ps2dev = &psmouse->ps2dev;
+	if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSTREAM))
+		return -1;
+	return 0;
+}
+
 static const struct alps_model_info *alps_get_model(struct psmouse *psmouse, int *version)
 {
 	struct ps2dev *ps2dev = &psmouse->ps2dev;
 	static const unsigned char rates[] = { 0, 10, 20, 40, 60, 80, 100, 200 };
 	unsigned char param[4];
+	const struct alps_model_info *model = NULL;
 	int i;
 
 	/*
@@ -464,12 +995,41 @@ static const struct alps_model_info *alps_get_model(struct psmouse *psmouse, int
 		*version = (param[0] << 8) | (param[1] << 4) | i;
 	}
 
-	for (i = 0; i < ARRAY_SIZE(alps_model_data); i++)
+	for (i = 0; i < ARRAY_SIZE(alps_model_data); i++) {
 		if (!memcmp(param, alps_model_data[i].signature,
-			    sizeof(alps_model_data[i].signature)))
-			return alps_model_data + i;
+			    sizeof(alps_model_data[i].signature))) {
+			model = alps_model_data + i;
+			break;
+		}
+	}
 
-	return NULL;
+	if (model && model->proto_version > ALPS_PROTO_V2) {
+		/*
+		 * Need to check command mode response to identify
+		 * model
+		 */
+		model = NULL;
+		if (alps_enter_command_mode(psmouse, param)) {
+			psmouse_warn(psmouse,
+				     "touchpad failed to enter command mode\n");
+		} else {
+			for (i = 0; i < ARRAY_SIZE(alps_model_data); i++) {
+				if (alps_model_data[i].proto_version > ALPS_PROTO_V2 &&
+				    alps_model_data[i].command_mode_resp == param[0]) {
+					model = alps_model_data + i;
+					break;
+				}
+			}
+			alps_exit_command_mode(psmouse);
+
+			if (!model)
+				psmouse_dbg(psmouse,
+					    "Unknown command mode response %2.2x\n",
+					    param[0]);
+		}
+	}
+
+	return model;
 }
 
 /*
@@ -477,7 +1037,7 @@ static const struct alps_model_info *alps_get_model(struct psmouse *psmouse, int
  * subsequent commands. It looks like glidepad is behind stickpointer,
  * I'd thought it would be other way around...
  */
-static int alps_passthrough_mode(struct psmouse *psmouse, bool enable)
+static int alps_passthrough_mode_v2(struct psmouse *psmouse, bool enable)
 {
 	struct ps2dev *ps2dev = &psmouse->ps2dev;
 	int cmd = enable ? PSMOUSE_CMD_SETSCALE21 : PSMOUSE_CMD_SETSCALE11;
@@ -494,7 +1054,7 @@ static int alps_passthrough_mode(struct psmouse *psmouse, bool enable)
 	return 0;
 }
 
-static int alps_absolute_mode(struct psmouse *psmouse)
+static int alps_absolute_mode_v1_v2(struct psmouse *psmouse)
 {
 	struct ps2dev *ps2dev = &psmouse->ps2dev;
 
@@ -565,17 +1125,17 @@ static int alps_tap_mode(struct psmouse *psmouse, int enable)
 static int alps_poll(struct psmouse *psmouse)
 {
 	struct alps_data *priv = psmouse->private;
-	unsigned char buf[6];
+	unsigned char buf[sizeof(psmouse->packet)];
 	bool poll_failed;
 
 	if (priv->i->flags & ALPS_PASS)
-		alps_passthrough_mode(psmouse, true);
+		alps_passthrough_mode_v2(psmouse, true);
 
 	poll_failed = ps2_command(&psmouse->ps2dev, buf,
 				  PSMOUSE_CMD_POLL | (psmouse->pktsize << 8)) < 0;
 
 	if (priv->i->flags & ALPS_PASS)
-		alps_passthrough_mode(psmouse, false);
+		alps_passthrough_mode_v2(psmouse, false);
 
 	if (poll_failed || (buf[0] & priv->i->mask0) != priv->i->byte0)
 		return -1;
@@ -592,13 +1152,13 @@ static int alps_poll(struct psmouse *psmouse)
 	return 0;
 }
 
-static int alps_hw_init(struct psmouse *psmouse)
+static int alps_hw_init_v1_v2(struct psmouse *psmouse)
 {
 	struct alps_data *priv = psmouse->private;
 	const struct alps_model_info *model = priv->i;
 
 	if ((model->flags & ALPS_PASS) &&
-	    alps_passthrough_mode(psmouse, true)) {
+	    alps_passthrough_mode_v2(psmouse, true)) {
 		return -1;
 	}
 
@@ -607,13 +1167,13 @@ static int alps_hw_init(struct psmouse *psmouse)
 		return -1;
 	}
 
-	if (alps_absolute_mode(psmouse)) {
+	if (alps_absolute_mode_v1_v2(psmouse)) {
 		psmouse_err(psmouse, "Failed to enable absolute mode\n");
 		return -1;
 	}
 
 	if ((model->flags & ALPS_PASS) &&
-	    alps_passthrough_mode(psmouse, false)) {
+	    alps_passthrough_mode_v2(psmouse, false)) {
 		return -1;
 	}
 
@@ -626,6 +1186,297 @@ static int alps_hw_init(struct psmouse *psmouse)
 	return 0;
 }
 
+/*
+ * Enable or disable passthrough mode to the trackstick. Must be in
+ * command mode when calling this function.
+ */
+static int alps_passthrough_mode_v3(struct psmouse *psmouse, bool enable)
+{
+	int reg_val;
+
+	reg_val = alps_command_mode_read_reg(psmouse, 0x0008);
+	if (reg_val == -1)
+		return -1;
+
+	if (enable)
+		reg_val |= 0x01;
+	else
+		reg_val &= ~0x01;
+
+	if (__alps_command_mode_write_reg(psmouse, reg_val))
+		return -1;
+
+	return 0;
+}
+
+/* Must be in command mode when calling this function */
+static int alps_absolute_mode_v3(struct psmouse *psmouse)
+{
+	int reg_val;
+
+	reg_val = alps_command_mode_read_reg(psmouse, 0x0004);
+	if (reg_val == -1)
+		return -1;
+
+	reg_val |= 0x06;
+	if (__alps_command_mode_write_reg(psmouse, reg_val))
+		return -1;
+
+	return 0;
+}
+
+static int alps_hw_init_v3(struct psmouse *psmouse)
+{
+	struct alps_data *priv = psmouse->private;
+	struct ps2dev *ps2dev = &psmouse->ps2dev;
+	int reg_val;
+	unsigned char param[4];
+
+	priv->nibble_commands = alps_v3_nibble_commands;
+	priv->addr_command = PSMOUSE_CMD_RESET_WRAP;
+
+	if (alps_enter_command_mode(psmouse, NULL))
+		goto error;
+
+	/* Check for trackstick */
+	reg_val = alps_command_mode_read_reg(psmouse, 0x0008);
+	if (reg_val == -1)
+		goto error;
+	if (reg_val & 0x80) {
+		if (alps_passthrough_mode_v3(psmouse, true))
+			goto error;
+		if (alps_exit_command_mode(psmouse))
+			goto error;
+
+		/*
+		 * E7 report for the trackstick
+		 *
+		 * There have been reports of failures to seem to trace back
+		 * to the above trackstick check failing. When these occur
+		 * this E7 report fails, so when that happens we continue
+		 * with the assumption that there isn't a trackstick after
+		 * all.
+		 */
+		param[0] = 0x64;
+		if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) ||
+		    ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) ||
+		    ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE21) ||
+		    ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) {
+			psmouse_warn(psmouse, "trackstick E7 report failed\n");
+		} else {
+			psmouse_dbg(psmouse,
+				    "trackstick E7 report: %2.2x %2.2x %2.2x\n",
+				    param[0], param[1], param[2]);
+
+			/*
+			 * Not sure what this does, but it is absolutely
+			 * essential. Without it, the touchpad does not
+			 * work at all and the trackstick just emits normal
+			 * PS/2 packets.
+			 */
+			if (ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) ||
+			    ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) ||
+			    ps2_command(ps2dev, NULL, PSMOUSE_CMD_SETSCALE11) ||
+			    alps_command_mode_send_nibble(psmouse, 0x9) ||
+			    alps_command_mode_send_nibble(psmouse, 0x4)) {
+				psmouse_err(psmouse,
+					    "Error sending magic E6 sequence\n");
+				goto error_passthrough;
+			}
+		}
+
+		if (alps_enter_command_mode(psmouse, NULL))
+			goto error_passthrough;
+		if (alps_passthrough_mode_v3(psmouse, false))
+			goto error;
+	}
+
+	if (alps_absolute_mode_v3(psmouse)) {
+		psmouse_err(psmouse, "Failed to enter absolute mode\n");
+		goto error;
+	}
+
+	reg_val = alps_command_mode_read_reg(psmouse, 0x0006);
+	if (reg_val == -1)
+		goto error;
+	if (__alps_command_mode_write_reg(psmouse, reg_val | 0x01))
+		goto error;
+
+	reg_val = alps_command_mode_read_reg(psmouse, 0x0007);
+	if (reg_val == -1)
+		goto error;
+	if (__alps_command_mode_write_reg(psmouse, reg_val | 0x01))
+		goto error;
+
+	if (alps_command_mode_read_reg(psmouse, 0x0144) == -1)
+		goto error;
+	if (__alps_command_mode_write_reg(psmouse, 0x04))
+		goto error;
+
+	if (alps_command_mode_read_reg(psmouse, 0x0159) == -1)
+		goto error;
+	if (__alps_command_mode_write_reg(psmouse, 0x03))
+		goto error;
+
+	if (alps_command_mode_read_reg(psmouse, 0x0163) == -1)
+		goto error;
+	if (alps_command_mode_write_reg(psmouse, 0x0163, 0x03))
+		goto error;
+
+	if (alps_command_mode_read_reg(psmouse, 0x0162) == -1)
+		goto error;
+	if (alps_command_mode_write_reg(psmouse, 0x0162, 0x04))
+		goto error;
+
+	/*
+	 * This ensures the trackstick packets are in the format
+	 * supported by this driver. If bit 1 isn't set the packet
+	 * format is different.
+	 */
+	if (alps_command_mode_write_reg(psmouse, 0x0008, 0x82))
+		goto error;
+
+	alps_exit_command_mode(psmouse);
+
+	/* Set rate and enable data reporting */
+	param[0] = 0x64;
+	if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE) ||
+	    ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) {
+		psmouse_err(psmouse, "Failed to enable data reporting\n");
+		return -1;
+	}
+
+	return 0;
+
+error_passthrough:
+	/* Something failed while in passthrough mode, so try to get out */
+	if (!alps_enter_command_mode(psmouse, NULL))
+		alps_passthrough_mode_v3(psmouse, false);
+error:
+	/*
+	 * Leaving the touchpad in command mode will essentially render
+	 * it unusable until the machine reboots, so exit it here just
+	 * to be safe
+	 */
+	alps_exit_command_mode(psmouse);
+	return -1;
+}
+
+/* Must be in command mode when calling this function */
+static int alps_absolute_mode_v4(struct psmouse *psmouse)
+{
+	int reg_val;
+
+	reg_val = alps_command_mode_read_reg(psmouse, 0x0004);
+	if (reg_val == -1)
+		return -1;
+
+	reg_val |= 0x02;
+	if (__alps_command_mode_write_reg(psmouse, reg_val))
+		return -1;
+
+	return 0;
+}
+
+static int alps_hw_init_v4(struct psmouse *psmouse)
+{
+	struct alps_data *priv = psmouse->private;
+	struct ps2dev *ps2dev = &psmouse->ps2dev;
+	unsigned char param[4];
+
+	priv->nibble_commands = alps_v4_nibble_commands;
+	priv->addr_command = PSMOUSE_CMD_DISABLE;
+
+	if (alps_enter_command_mode(psmouse, NULL))
+		goto error;
+
+	if (alps_absolute_mode_v4(psmouse)) {
+		psmouse_err(psmouse, "Failed to enter absolute mode\n");
+		goto error;
+	}
+
+	if (alps_command_mode_write_reg(psmouse, 0x0007, 0x8c))
+		goto error;
+
+	if (alps_command_mode_write_reg(psmouse, 0x0149, 0x03))
+		goto error;
+
+	if (alps_command_mode_write_reg(psmouse, 0x0160, 0x03))
+		goto error;
+
+	if (alps_command_mode_write_reg(psmouse, 0x017f, 0x15))
+		goto error;
+
+	if (alps_command_mode_write_reg(psmouse, 0x0151, 0x01))
+		goto error;
+
+	if (alps_command_mode_write_reg(psmouse, 0x0168, 0x03))
+		goto error;
+
+	if (alps_command_mode_write_reg(psmouse, 0x014a, 0x03))
+		goto error;
+
+	if (alps_command_mode_write_reg(psmouse, 0x0161, 0x03))
+		goto error;
+
+	alps_exit_command_mode(psmouse);
+
+	/*
+	 * This sequence changes the output from a 9-byte to an
+	 * 8-byte format. All the same data seems to be present,
+	 * just in a more compact format.
+	 */
+	param[0] = 0xc8;
+	param[1] = 0x64;
+	param[2] = 0x50;
+	if (ps2_command(ps2dev, &param[0], PSMOUSE_CMD_SETRATE) ||
+	    ps2_command(ps2dev, &param[1], PSMOUSE_CMD_SETRATE) ||
+	    ps2_command(ps2dev, &param[2], PSMOUSE_CMD_SETRATE) ||
+	    ps2_command(ps2dev, param, PSMOUSE_CMD_GETID))
+		return -1;
+
+	/* Set rate and enable data reporting */
+	param[0] = 0x64;
+	if (ps2_command(ps2dev, param, PSMOUSE_CMD_SETRATE) ||
+	    ps2_command(ps2dev, NULL, PSMOUSE_CMD_ENABLE)) {
+		psmouse_err(psmouse, "Failed to enable data reporting\n");
+		return -1;
+	}
+
+	return 0;
+
+error:
+	/*
+	 * Leaving the touchpad in command mode will essentially render
+	 * it unusable until the machine reboots, so exit it here just
+	 * to be safe
+	 */
+	alps_exit_command_mode(psmouse);
+	return -1;
+}
+
+static int alps_hw_init(struct psmouse *psmouse)
+{
+	struct alps_data *priv = psmouse->private;
+	const struct alps_model_info *model = priv->i;
+	int ret = -1;
+
+	switch (model->proto_version) {
+	case ALPS_PROTO_V1:
+	case ALPS_PROTO_V2:
+		ret = alps_hw_init_v1_v2(psmouse);
+		break;
+	case ALPS_PROTO_V3:
+		ret = alps_hw_init_v3(psmouse);
+		break;
+	case ALPS_PROTO_V4:
+		ret = alps_hw_init_v4(psmouse);
+		break;
+	}
+
+	return ret;
+}
+
 static int alps_reconnect(struct psmouse *psmouse)
 {
 	const struct alps_model_info *model;
@@ -666,6 +1517,8 @@ int alps_init(struct psmouse *psmouse)
 
 	psmouse->private = priv;
 
+	psmouse_reset(psmouse);
+
 	model = alps_get_model(psmouse, &version);
 	if (!model)
 		goto init_fail;
@@ -693,8 +1546,29 @@ int alps_init(struct psmouse *psmouse)
 		BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT);
 
 	dev1->evbit[BIT_WORD(EV_ABS)] |= BIT_MASK(EV_ABS);
-	input_set_abs_params(dev1, ABS_X, 0, 1023, 0, 0);
-	input_set_abs_params(dev1, ABS_Y, 0, 767, 0, 0);
+
+	switch (model->proto_version) {
+	case ALPS_PROTO_V1:
+	case ALPS_PROTO_V2:
+		input_set_abs_params(dev1, ABS_X, 0, 1023, 0, 0);
+		input_set_abs_params(dev1, ABS_Y, 0, 767, 0, 0);
+		break;
+	case ALPS_PROTO_V3:
+		set_bit(INPUT_PROP_SEMI_MT, dev1->propbit);
+		input_mt_init_slots(dev1, 2);
+		input_set_abs_params(dev1, ABS_MT_POSITION_X, 0, ALPS_V3_X_MAX, 0, 0);
+		input_set_abs_params(dev1, ABS_MT_POSITION_Y, 0, ALPS_V3_Y_MAX, 0, 0);
+
+		set_bit(BTN_TOOL_DOUBLETAP, dev1->keybit);
+		set_bit(BTN_TOOL_TRIPLETAP, dev1->keybit);
+		set_bit(BTN_TOOL_QUADTAP, dev1->keybit);
+		/* fall through */
+	case ALPS_PROTO_V4:
+		input_set_abs_params(dev1, ABS_X, 0, ALPS_V3_X_MAX, 0, 0);
+		input_set_abs_params(dev1, ABS_Y, 0, ALPS_V3_Y_MAX, 0, 0);
+		break;
+	}
+
 	input_set_abs_params(dev1, ABS_PRESSURE, 0, 127, 0, 0);
 
 	if (model->flags & ALPS_WHEEL) {
@@ -737,7 +1611,7 @@ int alps_init(struct psmouse *psmouse)
 	psmouse->poll = alps_poll;
 	psmouse->disconnect = alps_disconnect;
 	psmouse->reconnect = alps_reconnect;
-	psmouse->pktsize = 6;
+	psmouse->pktsize = model->proto_version == ALPS_PROTO_V4 ? 8 : 6;
 
 	/* We are having trouble resyncing ALPS touchpads so disable it for now */
 	psmouse->resync_time = 0;
diff --git a/drivers/input/mouse/alps.h b/drivers/input/mouse/alps.h
index 904ed8b3c8be..a00a4ab92a0f 100644
--- a/drivers/input/mouse/alps.h
+++ b/drivers/input/mouse/alps.h
@@ -12,20 +12,39 @@
 #ifndef _ALPS_H
 #define _ALPS_H
 
+#define ALPS_PROTO_V1	0
+#define ALPS_PROTO_V2	1
+#define ALPS_PROTO_V3	2
+#define ALPS_PROTO_V4	3
+
 struct alps_model_info {
         unsigned char signature[3];
+	unsigned char command_mode_resp; /* v3/v4 only */
+	unsigned char proto_version;
         unsigned char byte0, mask0;
         unsigned char flags;
 };
 
+struct alps_nibble_commands {
+	int command;
+	unsigned char data;
+};
+
 struct alps_data {
 	struct input_dev *dev2;		/* Relative device */
 	char phys[32];			/* Phys */
 	const struct alps_model_info *i;/* Info */
+	const struct alps_nibble_commands *nibble_commands;
+	int addr_command;		/* Command to set register address */
 	int prev_fin;			/* Finger bit from previous packet */
+	int multi_packet;		/* Multi-packet data in progress */
+	unsigned char multi_data[6];	/* Saved multi-packet data */
+	u8 quirks;
 	struct timer_list timer;
 };
 
+#define ALPS_QUIRK_TRACKSTICK_BUTTONS	1 /* trakcstick buttons in trackstick packet */
+
 #ifdef CONFIG_MOUSE_PS2_ALPS
 int alps_detect(struct psmouse *psmouse, bool set_properties);
 int alps_init(struct psmouse *psmouse);
diff --git a/drivers/input/mouse/amimouse.c b/drivers/input/mouse/amimouse.c
index ff5f61a0fd3a..39be7b82c046 100644
--- a/drivers/input/mouse/amimouse.c
+++ b/drivers/input/mouse/amimouse.c
@@ -140,25 +140,13 @@ static int __exit amimouse_remove(struct platform_device *pdev)
 }
 
 static struct platform_driver amimouse_driver = {
+	.probe = amimouse_probe,
 	.remove = __exit_p(amimouse_remove),
 	.driver   = {
 		.name	= "amiga-mouse",
 		.owner	= THIS_MODULE,
 	},
 };
-
-static int __init amimouse_init(void)
-{
-	return platform_driver_probe(&amimouse_driver, amimouse_probe);
-}
-
-module_init(amimouse_init);
-
-static void __exit amimouse_exit(void)
-{
-	platform_driver_unregister(&amimouse_driver);
-}
-
-module_exit(amimouse_exit);
+module_platform_driver(amimouse_driver);
 
 MODULE_ALIAS("platform:amiga-mouse");
diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index e2a9867c19d5..d2c0db159b18 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -43,6 +43,24 @@ static int synaptics_send_cmd(struct psmouse *psmouse, unsigned char c,
 }
 
 /*
+ * V3 and later support this fast command
+ */
+static int elantech_send_cmd(struct psmouse *psmouse, unsigned char c,
+				unsigned char *param)
+{
+	struct ps2dev *ps2dev = &psmouse->ps2dev;
+
+	if (ps2_command(ps2dev, NULL, ETP_PS2_CUSTOM_COMMAND) ||
+	    ps2_command(ps2dev, NULL, c) ||
+	    ps2_command(ps2dev, param, PSMOUSE_CMD_GETINFO)) {
+		psmouse_err(psmouse, "%s query 0x%02x failed.\n", __func__, c);
+		return -1;
+	}
+
+	return 0;
+}
+
+/*
  * A retrying version of ps2_command
  */
 static int elantech_ps2_command(struct psmouse *psmouse,
@@ -863,13 +881,13 @@ static int elantech_set_range(struct psmouse *psmouse,
 			i = (etd->fw_version > 0x020800 &&
 			     etd->fw_version < 0x020900) ? 1 : 2;
 
-			if (synaptics_send_cmd(psmouse, ETP_FW_ID_QUERY, param))
+			if (etd->send_cmd(psmouse, ETP_FW_ID_QUERY, param))
 				return -1;
 
 			fixed_dpi = param[1] & 0x10;
 
 			if (((etd->fw_version >> 16) == 0x14) && fixed_dpi) {
-				if (synaptics_send_cmd(psmouse, ETP_SAMPLE_QUERY, param))
+				if (etd->send_cmd(psmouse, ETP_SAMPLE_QUERY, param))
 					return -1;
 
 				*x_max = (etd->capabilities[1] - i) * param[1] / 2;
@@ -888,7 +906,7 @@ static int elantech_set_range(struct psmouse *psmouse,
 		break;
 
 	case 3:
-		if (synaptics_send_cmd(psmouse, ETP_FW_ID_QUERY, param))
+		if (etd->send_cmd(psmouse, ETP_FW_ID_QUERY, param))
 			return -1;
 
 		*x_max = (0x0f & param[0]) << 8 | param[1];
@@ -896,7 +914,7 @@ static int elantech_set_range(struct psmouse *psmouse,
 		break;
 
 	case 4:
-		if (synaptics_send_cmd(psmouse, ETP_FW_ID_QUERY, param))
+		if (etd->send_cmd(psmouse, ETP_FW_ID_QUERY, param))
 			return -1;
 
 		*x_max = (0x0f & param[0]) << 8 | param[1];
@@ -913,6 +931,30 @@ static int elantech_set_range(struct psmouse *psmouse,
 }
 
 /*
+ * (value from firmware) * 10 + 790 = dpi
+ * we also have to convert dpi to dots/mm (*10/254 to avoid floating point)
+ */
+static unsigned int elantech_convert_res(unsigned int val)
+{
+	return (val * 10 + 790) * 10 / 254;
+}
+
+static int elantech_get_resolution_v4(struct psmouse *psmouse,
+				      unsigned int *x_res,
+				      unsigned int *y_res)
+{
+	unsigned char param[3];
+
+	if (elantech_send_cmd(psmouse, ETP_RESOLUTION_QUERY, param))
+		return -1;
+
+	*x_res = elantech_convert_res(param[1] & 0x0f);
+	*y_res = elantech_convert_res((param[1] & 0xf0) >> 4);
+
+	return 0;
+}
+
+/*
  * Set the appropriate event bits for the input subsystem
  */
 static int elantech_set_input_params(struct psmouse *psmouse)
@@ -920,6 +962,7 @@ static int elantech_set_input_params(struct psmouse *psmouse)
 	struct input_dev *dev = psmouse->dev;
 	struct elantech_data *etd = psmouse->private;
 	unsigned int x_min = 0, y_min = 0, x_max = 0, y_max = 0, width = 0;
+	unsigned int x_res = 0, y_res = 0;
 
 	if (elantech_set_range(psmouse, &x_min, &y_min, &x_max, &y_max, &width))
 		return -1;
@@ -967,10 +1010,20 @@ static int elantech_set_input_params(struct psmouse *psmouse)
 		break;
 
 	case 4:
+		if (elantech_get_resolution_v4(psmouse, &x_res, &y_res)) {
+			/*
+			 * if query failed, print a warning and leave the values
+			 * zero to resemble synaptics.c behavior.
+			 */
+			psmouse_warn(psmouse, "couldn't query resolution data.\n");
+		}
+
 		__set_bit(BTN_TOOL_QUADTAP, dev->keybit);
 		/* For X to recognize me as touchpad. */
 		input_set_abs_params(dev, ABS_X, x_min, x_max, 0, 0);
 		input_set_abs_params(dev, ABS_Y, y_min, y_max, 0, 0);
+		input_abs_set_res(dev, ABS_X, x_res);
+		input_abs_set_res(dev, ABS_Y, y_res);
 		/*
 		 * range of pressure and width is the same as v2,
 		 * report ABS_PRESSURE, ABS_TOOL_WIDTH for compatibility.
@@ -983,6 +1036,8 @@ static int elantech_set_input_params(struct psmouse *psmouse)
 		input_mt_init_slots(dev, ETP_MAX_FINGERS);
 		input_set_abs_params(dev, ABS_MT_POSITION_X, x_min, x_max, 0, 0);
 		input_set_abs_params(dev, ABS_MT_POSITION_Y, y_min, y_max, 0, 0);
+		input_abs_set_res(dev, ABS_MT_POSITION_X, x_res);
+		input_abs_set_res(dev, ABS_MT_POSITION_Y, y_res);
 		input_set_abs_params(dev, ABS_MT_PRESSURE, ETP_PMIN_V2,
 				     ETP_PMAX_V2, 0, 0);
 		/*
@@ -1031,16 +1086,13 @@ static ssize_t elantech_set_int_attr(struct psmouse *psmouse,
 	struct elantech_data *etd = psmouse->private;
 	struct elantech_attr_data *attr = data;
 	unsigned char *reg = (unsigned char *) etd + attr->field_offset;
-	unsigned long value;
+	unsigned char value;
 	int err;
 
-	err = strict_strtoul(buf, 16, &value);
+	err = kstrtou8(buf, 16, &value);
 	if (err)
 		return err;
 
-	if (value > 0xff)
-		return -EINVAL;
-
 	/* Do we need to preserve some bits for version 2 hardware too? */
 	if (etd->hw_version == 1) {
 		if (attr->reg == 0x10)
@@ -1233,9 +1285,11 @@ static int elantech_set_properties(struct elantech_data *etd)
 		}
 	}
 
-	/*
-	 * Turn on packet checking by default.
-	 */
+	/* decide which send_cmd we're gonna use early */
+	etd->send_cmd = etd->hw_version >= 3 ? elantech_send_cmd :
+					       synaptics_send_cmd;
+
+	/* Turn on packet checking by default */
 	etd->paritycheck = 1;
 
 	/*
@@ -1291,7 +1345,7 @@ int elantech_init(struct psmouse *psmouse)
 		     "assuming hardware version %d (with firmware version 0x%02x%02x%02x)\n",
 		     etd->hw_version, param[0], param[1], param[2]);
 
-	if (synaptics_send_cmd(psmouse, ETP_CAPABILITIES_QUERY,
+	if (etd->send_cmd(psmouse, ETP_CAPABILITIES_QUERY,
 	    etd->capabilities)) {
 		psmouse_err(psmouse, "failed to query capabilities.\n");
 		goto init_fail;
diff --git a/drivers/input/mouse/elantech.h b/drivers/input/mouse/elantech.h
index 9e5f1aabea7e..46db3be45ac9 100644
--- a/drivers/input/mouse/elantech.h
+++ b/drivers/input/mouse/elantech.h
@@ -20,6 +20,7 @@
 #define ETP_FW_VERSION_QUERY		0x01
 #define ETP_CAPABILITIES_QUERY		0x02
 #define ETP_SAMPLE_QUERY		0x03
+#define ETP_RESOLUTION_QUERY		0x04
 
 /*
  * Command values for register reading or writing
@@ -135,6 +136,7 @@ struct elantech_data {
 	unsigned int width;
 	struct finger_pos mt[ETP_MAX_FINGERS];
 	unsigned char parity[256];
+	int (*send_cmd)(struct psmouse *psmouse, unsigned char c, unsigned char *param);
 };
 
 #ifdef CONFIG_MOUSE_PS2_ELANTECH
diff --git a/drivers/input/mouse/gpio_mouse.c b/drivers/input/mouse/gpio_mouse.c
index 58902fbb9896..a9ad8e1402be 100644
--- a/drivers/input/mouse/gpio_mouse.c
+++ b/drivers/input/mouse/gpio_mouse.c
@@ -178,18 +178,7 @@ static struct platform_driver gpio_mouse_device_driver = {
 		.owner	= THIS_MODULE,
 	}
 };
-
-static int __init gpio_mouse_init(void)
-{
-	return platform_driver_register(&gpio_mouse_device_driver);
-}
-module_init(gpio_mouse_init);
-
-static void __exit gpio_mouse_exit(void)
-{
-	platform_driver_unregister(&gpio_mouse_device_driver);
-}
-module_exit(gpio_mouse_exit);
+module_platform_driver(gpio_mouse_device_driver);
 
 MODULE_AUTHOR("Hans-Christian Egtvedt <egtvedt@samfundet.no>");
 MODULE_DESCRIPTION("GPIO mouse driver");
diff --git a/drivers/input/mouse/hgpk.c b/drivers/input/mouse/hgpk.c
index 0470dd46b566..1c5d521de600 100644
--- a/drivers/input/mouse/hgpk.c
+++ b/drivers/input/mouse/hgpk.c
@@ -789,11 +789,14 @@ static ssize_t hgpk_set_powered(struct psmouse *psmouse, void *data,
 				const char *buf, size_t count)
 {
 	struct hgpk_data *priv = psmouse->private;
-	unsigned long value;
+	unsigned int value;
 	int err;
 
-	err = strict_strtoul(buf, 10, &value);
-	if (err || value > 1)
+	err = kstrtouint(buf, 10, &value);
+	if (err)
+		return err;
+
+	if (value > 1)
 		return -EINVAL;
 
 	if (value != priv->powered) {
@@ -881,11 +884,14 @@ static ssize_t hgpk_trigger_recal(struct psmouse *psmouse, void *data,
 				const char *buf, size_t count)
 {
 	struct hgpk_data *priv = psmouse->private;
-	unsigned long value;
+	unsigned int value;
 	int err;
 
-	err = strict_strtoul(buf, 10, &value);
-	if (err || value != 1)
+	err = kstrtouint(buf, 10, &value);
+	if (err)
+		return err;
+
+	if (value != 1)
 		return -EINVAL;
 
 	/*
diff --git a/drivers/input/mouse/logips2pp.c b/drivers/input/mouse/logips2pp.c
index faac2c3bef74..84de2fc6acc1 100644
--- a/drivers/input/mouse/logips2pp.c
+++ b/drivers/input/mouse/logips2pp.c
@@ -155,9 +155,14 @@ static ssize_t ps2pp_attr_show_smartscroll(struct psmouse *psmouse,
 static ssize_t ps2pp_attr_set_smartscroll(struct psmouse *psmouse, void *data,
 					  const char *buf, size_t count)
 {
-	unsigned long value;
+	unsigned int value;
+	int err;
 
-	if (strict_strtoul(buf, 10, &value) || value > 1)
+	err = kstrtouint(buf, 10, &value);
+	if (err)
+		return err;
+
+	if (value > 1)
 		return -EINVAL;
 
 	ps2pp_set_smartscroll(psmouse, value);
diff --git a/drivers/input/mouse/psmouse-base.c b/drivers/input/mouse/psmouse-base.c
index 9f352fbd7b4f..de7e8bc17b1f 100644
--- a/drivers/input/mouse/psmouse-base.c
+++ b/drivers/input/mouse/psmouse-base.c
@@ -127,7 +127,7 @@ struct psmouse_protocol {
  * relevant events to the input module once full packet has arrived.
  */
 
-static psmouse_ret_t psmouse_process_byte(struct psmouse *psmouse)
+psmouse_ret_t psmouse_process_byte(struct psmouse *psmouse)
 {
 	struct input_dev *dev = psmouse->dev;
 	unsigned char *packet = psmouse->packet;
@@ -418,6 +418,49 @@ int psmouse_reset(struct psmouse *psmouse)
 	return 0;
 }
 
+/*
+ * Here we set the mouse resolution.
+ */
+
+void psmouse_set_resolution(struct psmouse *psmouse, unsigned int resolution)
+{
+	static const unsigned char params[] = { 0, 1, 2, 2, 3 };
+	unsigned char p;
+
+	if (resolution == 0 || resolution > 200)
+		resolution = 200;
+
+	p = params[resolution / 50];
+	ps2_command(&psmouse->ps2dev, &p, PSMOUSE_CMD_SETRES);
+	psmouse->resolution = 25 << p;
+}
+
+/*
+ * Here we set the mouse report rate.
+ */
+
+static void psmouse_set_rate(struct psmouse *psmouse, unsigned int rate)
+{
+	static const unsigned char rates[] = { 200, 100, 80, 60, 40, 20, 10, 0 };
+	unsigned char r;
+	int i = 0;
+
+	while (rates[i] > rate) i++;
+	r = rates[i];
+	ps2_command(&psmouse->ps2dev, &r, PSMOUSE_CMD_SETRATE);
+	psmouse->rate = r;
+}
+
+/*
+ * psmouse_poll() - default poll handler. Everyone except for ALPS uses it.
+ */
+
+static int psmouse_poll(struct psmouse *psmouse)
+{
+	return ps2_command(&psmouse->ps2dev, psmouse->packet,
+			   PSMOUSE_CMD_POLL | (psmouse->pktsize << 8));
+}
+
 
 /*
  * Genius NetMouse magic init.
@@ -603,6 +646,56 @@ static int cortron_detect(struct psmouse *psmouse, bool set_properties)
 }
 
 /*
+ * Apply default settings to the psmouse structure. Most of them will
+ * be overridden by individual protocol initialization routines.
+ */
+
+static void psmouse_apply_defaults(struct psmouse *psmouse)
+{
+	struct input_dev *input_dev = psmouse->dev;
+
+	memset(input_dev->evbit, 0, sizeof(input_dev->evbit));
+	memset(input_dev->keybit, 0, sizeof(input_dev->keybit));
+	memset(input_dev->relbit, 0, sizeof(input_dev->relbit));
+	memset(input_dev->absbit, 0, sizeof(input_dev->absbit));
+	memset(input_dev->mscbit, 0, sizeof(input_dev->mscbit));
+
+	__set_bit(EV_KEY, input_dev->evbit);
+	__set_bit(EV_REL, input_dev->evbit);
+
+	__set_bit(BTN_LEFT, input_dev->keybit);
+	__set_bit(BTN_RIGHT, input_dev->keybit);
+
+	__set_bit(REL_X, input_dev->relbit);
+	__set_bit(REL_Y, input_dev->relbit);
+
+	psmouse->set_rate = psmouse_set_rate;
+	psmouse->set_resolution = psmouse_set_resolution;
+	psmouse->poll = psmouse_poll;
+	psmouse->protocol_handler = psmouse_process_byte;
+	psmouse->pktsize = 3;
+	psmouse->reconnect = NULL;
+	psmouse->disconnect = NULL;
+	psmouse->cleanup = NULL;
+	psmouse->pt_activate = NULL;
+	psmouse->pt_deactivate = NULL;
+}
+
+/*
+ * Apply default settings to the psmouse structure and call specified
+ * protocol detection or initialization routine.
+ */
+static int psmouse_do_detect(int (*detect)(struct psmouse *psmouse,
+					   bool set_properties),
+			     struct psmouse *psmouse, bool set_properties)
+{
+	if (set_properties)
+		psmouse_apply_defaults(psmouse);
+
+	return detect(psmouse, set_properties);
+}
+
+/*
  * psmouse_extensions() probes for any extensions to the basic PS/2 protocol
  * the mouse may have.
  */
@@ -616,7 +709,7 @@ static int psmouse_extensions(struct psmouse *psmouse,
  * We always check for lifebook because it does not disturb mouse
  * (it only checks DMI information).
  */
-	if (lifebook_detect(psmouse, set_properties) == 0) {
+	if (psmouse_do_detect(lifebook_detect, psmouse, set_properties) == 0) {
 		if (max_proto > PSMOUSE_IMEX) {
 			if (!set_properties || lifebook_init(psmouse) == 0)
 				return PSMOUSE_LIFEBOOK;
@@ -628,15 +721,18 @@ static int psmouse_extensions(struct psmouse *psmouse,
  * upsets the thinkingmouse).
  */
 
-	if (max_proto > PSMOUSE_IMEX && thinking_detect(psmouse, set_properties) == 0)
+	if (max_proto > PSMOUSE_IMEX &&
+	    psmouse_do_detect(thinking_detect, psmouse, set_properties) == 0) {
 		return PSMOUSE_THINKPS;
+	}
 
 /*
  * Try Synaptics TouchPad. Note that probing is done even if Synaptics protocol
  * support is disabled in config - we need to know if it is synaptics so we
  * can reset it properly after probing for intellimouse.
  */
-	if (max_proto > PSMOUSE_PS2 && synaptics_detect(psmouse, set_properties) == 0) {
+	if (max_proto > PSMOUSE_PS2 &&
+	    psmouse_do_detect(synaptics_detect, psmouse, set_properties) == 0) {
 		synaptics_hardware = true;
 
 		if (max_proto > PSMOUSE_IMEX) {
@@ -667,7 +763,8 @@ static int psmouse_extensions(struct psmouse *psmouse,
  */
 	if (max_proto > PSMOUSE_IMEX) {
 		ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS);
-		if (alps_detect(psmouse, set_properties) == 0) {
+		if (psmouse_do_detect(alps_detect,
+				      psmouse, set_properties) == 0) {
 			if (!set_properties || alps_init(psmouse) == 0)
 				return PSMOUSE_ALPS;
 /*
@@ -681,7 +778,7 @@ static int psmouse_extensions(struct psmouse *psmouse,
  * Try OLPC HGPK touchpad.
  */
 	if (max_proto > PSMOUSE_IMEX &&
-			hgpk_detect(psmouse, set_properties) == 0) {
+	    psmouse_do_detect(hgpk_detect, psmouse, set_properties) == 0) {
 		if (!set_properties || hgpk_init(psmouse) == 0)
 			return PSMOUSE_HGPK;
 /*
@@ -694,7 +791,7 @@ static int psmouse_extensions(struct psmouse *psmouse,
  * Try Elantech touchpad.
  */
 	if (max_proto > PSMOUSE_IMEX &&
-			elantech_detect(psmouse, set_properties) == 0) {
+	    psmouse_do_detect(elantech_detect, psmouse, set_properties) == 0) {
 		if (!set_properties || elantech_init(psmouse) == 0)
 			return PSMOUSE_ELANTECH;
 /*
@@ -703,18 +800,21 @@ static int psmouse_extensions(struct psmouse *psmouse,
 		max_proto = PSMOUSE_IMEX;
 	}
 
-
 	if (max_proto > PSMOUSE_IMEX) {
-		if (genius_detect(psmouse, set_properties) == 0)
+		if (psmouse_do_detect(genius_detect,
+				      psmouse, set_properties) == 0)
 			return PSMOUSE_GENPS;
 
-		if (ps2pp_init(psmouse, set_properties) == 0)
+		if (psmouse_do_detect(ps2pp_init,
+				      psmouse, set_properties) == 0)
 			return PSMOUSE_PS2PP;
 
-		if (trackpoint_detect(psmouse, set_properties) == 0)
+		if (psmouse_do_detect(trackpoint_detect,
+				      psmouse, set_properties) == 0)
 			return PSMOUSE_TRACKPOINT;
 
-		if (touchkit_ps2_detect(psmouse, set_properties) == 0)
+		if (psmouse_do_detect(touchkit_ps2_detect,
+				      psmouse, set_properties) == 0)
 			return PSMOUSE_TOUCHKIT_PS2;
 	}
 
@@ -723,7 +823,8 @@ static int psmouse_extensions(struct psmouse *psmouse,
  * Trackpoint devices (causing TP_READ_ID command to time out).
  */
 	if (max_proto > PSMOUSE_IMEX) {
-		if (fsp_detect(psmouse, set_properties) == 0) {
+		if (psmouse_do_detect(fsp_detect,
+				      psmouse, set_properties) == 0) {
 			if (!set_properties || fsp_init(psmouse) == 0)
 				return PSMOUSE_FSP;
 /*
@@ -741,17 +842,23 @@ static int psmouse_extensions(struct psmouse *psmouse,
 	ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS);
 	psmouse_reset(psmouse);
 
-	if (max_proto >= PSMOUSE_IMEX && im_explorer_detect(psmouse, set_properties) == 0)
+	if (max_proto >= PSMOUSE_IMEX &&
+	    psmouse_do_detect(im_explorer_detect,
+			      psmouse, set_properties) == 0) {
 		return PSMOUSE_IMEX;
+	}
 
-	if (max_proto >= PSMOUSE_IMPS && intellimouse_detect(psmouse, set_properties) == 0)
+	if (max_proto >= PSMOUSE_IMPS &&
+	    psmouse_do_detect(intellimouse_detect,
+			      psmouse, set_properties) == 0) {
 		return PSMOUSE_IMPS;
+	}
 
 /*
  * Okay, all failed, we have a standard mouse here. The number of the buttons
  * is still a question, though. We assume 3.
  */
-	ps2bare_detect(psmouse, set_properties);
+	psmouse_do_detect(ps2bare_detect, psmouse, set_properties);
 
 	if (synaptics_hardware) {
 /*
@@ -819,6 +926,13 @@ static const struct psmouse_protocol psmouse_protocols[] = {
 		.detect		= synaptics_detect,
 		.init		= synaptics_init,
 	},
+	{
+		.type		= PSMOUSE_SYNAPTICS_RELATIVE,
+		.name		= "SynRelPS/2",
+		.alias		= "synaptics-relative",
+		.detect		= synaptics_detect,
+		.init		= synaptics_init_relative,
+	},
 #endif
 #ifdef CONFIG_MOUSE_PS2_ALPS
 	{
@@ -958,39 +1072,6 @@ static int psmouse_probe(struct psmouse *psmouse)
 }
 
 /*
- * Here we set the mouse resolution.
- */
-
-void psmouse_set_resolution(struct psmouse *psmouse, unsigned int resolution)
-{
-	static const unsigned char params[] = { 0, 1, 2, 2, 3 };
-	unsigned char p;
-
-	if (resolution == 0 || resolution > 200)
-		resolution = 200;
-
-	p = params[resolution / 50];
-	ps2_command(&psmouse->ps2dev, &p, PSMOUSE_CMD_SETRES);
-	psmouse->resolution = 25 << p;
-}
-
-/*
- * Here we set the mouse report rate.
- */
-
-static void psmouse_set_rate(struct psmouse *psmouse, unsigned int rate)
-{
-	static const unsigned char rates[] = { 200, 100, 80, 60, 40, 20, 10, 0 };
-	unsigned char r;
-	int i = 0;
-
-	while (rates[i] > rate) i++;
-	r = rates[i];
-	ps2_command(&psmouse->ps2dev, &r, PSMOUSE_CMD_SETRATE);
-	psmouse->rate = r;
-}
-
-/*
  * psmouse_initialize() initializes the mouse to a sane state.
  */
 
@@ -1035,16 +1116,6 @@ static void psmouse_deactivate(struct psmouse *psmouse)
 	psmouse_set_state(psmouse, PSMOUSE_CMD_MODE);
 }
 
-/*
- * psmouse_poll() - default poll handler. Everyone except for ALPS uses it.
- */
-
-static int psmouse_poll(struct psmouse *psmouse)
-{
-	return ps2_command(&psmouse->ps2dev, psmouse->packet,
-			   PSMOUSE_CMD_POLL | (psmouse->pktsize << 8));
-}
-
 
 /*
  * psmouse_resync() attempts to re-validate current protocol.
@@ -1245,18 +1316,9 @@ static int psmouse_switch_protocol(struct psmouse *psmouse,
 
 	input_dev->dev.parent = &psmouse->ps2dev.serio->dev;
 
-	input_dev->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_REL);
-	input_dev->keybit[BIT_WORD(BTN_MOUSE)] =
-				BIT_MASK(BTN_LEFT) | BIT_MASK(BTN_RIGHT);
-	input_dev->relbit[0] = BIT_MASK(REL_X) | BIT_MASK(REL_Y);
-
-	psmouse->set_rate = psmouse_set_rate;
-	psmouse->set_resolution = psmouse_set_resolution;
-	psmouse->poll = psmouse_poll;
-	psmouse->protocol_handler = psmouse_process_byte;
-	psmouse->pktsize = 3;
-
 	if (proto && (proto->detect || proto->init)) {
+		psmouse_apply_defaults(psmouse);
+
 		if (proto->detect && proto->detect(psmouse, true) < 0)
 			return -1;
 
@@ -1558,13 +1620,12 @@ static ssize_t psmouse_show_int_attr(struct psmouse *psmouse, void *offset, char
 static ssize_t psmouse_set_int_attr(struct psmouse *psmouse, void *offset, const char *buf, size_t count)
 {
 	unsigned int *field = (unsigned int *)((char *)psmouse + (size_t)offset);
-	unsigned long value;
-
-	if (strict_strtoul(buf, 10, &value))
-		return -EINVAL;
+	unsigned int value;
+	int err;
 
-	if ((unsigned int)value != value)
-		return -EINVAL;
+	err = kstrtouint(buf, 10, &value);
+	if (err)
+		return err;
 
 	*field = value;
 
@@ -1671,10 +1732,12 @@ static ssize_t psmouse_attr_set_protocol(struct psmouse *psmouse, void *data, co
 
 static ssize_t psmouse_attr_set_rate(struct psmouse *psmouse, void *data, const char *buf, size_t count)
 {
-	unsigned long value;
+	unsigned int value;
+	int err;
 
-	if (strict_strtoul(buf, 10, &value))
-		return -EINVAL;
+	err = kstrtouint(buf, 10, &value);
+	if (err)
+		return err;
 
 	psmouse->set_rate(psmouse, value);
 	return count;
@@ -1682,10 +1745,12 @@ static ssize_t psmouse_attr_set_rate(struct psmouse *psmouse, void *data, const
 
 static ssize_t psmouse_attr_set_resolution(struct psmouse *psmouse, void *data, const char *buf, size_t count)
 {
-	unsigned long value;
+	unsigned int value;
+	int err;
 
-	if (strict_strtoul(buf, 10, &value))
-		return -EINVAL;
+	err = kstrtouint(buf, 10, &value);
+	if (err)
+		return err;
 
 	psmouse->set_resolution(psmouse, value);
 	return count;
diff --git a/drivers/input/mouse/psmouse.h b/drivers/input/mouse/psmouse.h
index 9b84b0c4e371..6a417092d010 100644
--- a/drivers/input/mouse/psmouse.h
+++ b/drivers/input/mouse/psmouse.h
@@ -8,6 +8,7 @@
 #define PSMOUSE_CMD_SETSTREAM	0x00ea
 #define PSMOUSE_CMD_SETPOLL	0x00f0
 #define PSMOUSE_CMD_POLL	0x00eb	/* caller sets number of bytes to receive */
+#define PSMOUSE_CMD_RESET_WRAP	0x00ec
 #define PSMOUSE_CMD_GETID	0x02f2
 #define PSMOUSE_CMD_SETRATE	0x10f3
 #define PSMOUSE_CMD_ENABLE	0x00f4
@@ -93,6 +94,7 @@ enum psmouse_type {
 	PSMOUSE_HGPK,
 	PSMOUSE_ELANTECH,
 	PSMOUSE_FSP,
+	PSMOUSE_SYNAPTICS_RELATIVE,
 	PSMOUSE_AUTO		/* This one should always be last */
 };
 
@@ -102,6 +104,7 @@ int psmouse_sliced_command(struct psmouse *psmouse, unsigned char command);
 int psmouse_reset(struct psmouse *psmouse);
 void psmouse_set_state(struct psmouse *psmouse, enum psmouse_state new_state);
 void psmouse_set_resolution(struct psmouse *psmouse, unsigned int resolution);
+psmouse_ret_t psmouse_process_byte(struct psmouse *psmouse);
 
 struct psmouse_attribute {
 	struct device_attribute dattr;
diff --git a/drivers/input/mouse/pxa930_trkball.c b/drivers/input/mouse/pxa930_trkball.c
index ee3b0ca9d592..a9e4bfdf31f4 100644
--- a/drivers/input/mouse/pxa930_trkball.c
+++ b/drivers/input/mouse/pxa930_trkball.c
@@ -250,19 +250,7 @@ static struct platform_driver pxa930_trkball_driver = {
 	.probe		= pxa930_trkball_probe,
 	.remove		= __devexit_p(pxa930_trkball_remove),
 };
-
-static int __init pxa930_trkball_init(void)
-{
-	return platform_driver_register(&pxa930_trkball_driver);
-}
-
-static void __exit pxa930_trkball_exit(void)
-{
-	platform_driver_unregister(&pxa930_trkball_driver);
-}
-
-module_init(pxa930_trkball_init);
-module_exit(pxa930_trkball_exit);
+module_platform_driver(pxa930_trkball_driver);
 
 MODULE_AUTHOR("Yong Yao <yaoyong@marvell.com>");
 MODULE_DESCRIPTION("PXA930 Trackball Mouse Driver");
diff --git a/drivers/input/mouse/sentelic.c b/drivers/input/mouse/sentelic.c
index 86d6f39178b0..e36847de7617 100644
--- a/drivers/input/mouse/sentelic.c
+++ b/drivers/input/mouse/sentelic.c
@@ -408,7 +408,7 @@ static int fsp_onpad_hscr(struct psmouse *psmouse, bool enable)
 static ssize_t fsp_attr_set_setreg(struct psmouse *psmouse, void *data,
 				   const char *buf, size_t count)
 {
-	unsigned long reg, val;
+	int reg, val;
 	char *rest;
 	ssize_t retval;
 
@@ -416,7 +416,11 @@ static ssize_t fsp_attr_set_setreg(struct psmouse *psmouse, void *data,
 	if (rest == buf || *rest != ' ' || reg > 0xff)
 		return -EINVAL;
 
-	if (strict_strtoul(rest + 1, 16, &val) || val > 0xff)
+	retval = kstrtoint(rest + 1, 16, &val);
+	if (retval)
+		return retval;
+
+	if (val > 0xff)
 		return -EINVAL;
 
 	if (fsp_reg_write_enable(psmouse, true))
@@ -448,10 +452,13 @@ static ssize_t fsp_attr_set_getreg(struct psmouse *psmouse, void *data,
 					const char *buf, size_t count)
 {
 	struct fsp_data *pad = psmouse->private;
-	unsigned long reg;
-	int val;
+	int reg, val, err;
+
+	err = kstrtoint(buf, 16, &reg);
+	if (err)
+		return err;
 
-	if (strict_strtoul(buf, 16, &reg) || reg > 0xff)
+	if (reg > 0xff)
 		return -EINVAL;
 
 	if (fsp_reg_read(psmouse, reg, &val))
@@ -480,9 +487,13 @@ static ssize_t fsp_attr_show_pagereg(struct psmouse *psmouse,
 static ssize_t fsp_attr_set_pagereg(struct psmouse *psmouse, void *data,
 					const char *buf, size_t count)
 {
-	unsigned long val;
+	int val, err;
 
-	if (strict_strtoul(buf, 16, &val) || val > 0xff)
+	err = kstrtoint(buf, 16, &val);
+	if (err)
+		return err;
+
+	if (val > 0xff)
 		return -EINVAL;
 
 	if (fsp_page_reg_write(psmouse, val))
@@ -505,9 +516,14 @@ static ssize_t fsp_attr_show_vscroll(struct psmouse *psmouse,
 static ssize_t fsp_attr_set_vscroll(struct psmouse *psmouse, void *data,
 					const char *buf, size_t count)
 {
-	unsigned long val;
+	unsigned int val;
+	int err;
+
+	err = kstrtouint(buf, 10, &val);
+	if (err)
+		return err;
 
-	if (strict_strtoul(buf, 10, &val) || val > 1)
+	if (val > 1)
 		return -EINVAL;
 
 	fsp_onpad_vscr(psmouse, val);
@@ -529,9 +545,14 @@ static ssize_t fsp_attr_show_hscroll(struct psmouse *psmouse,
 static ssize_t fsp_attr_set_hscroll(struct psmouse *psmouse, void *data,
 					const char *buf, size_t count)
 {
-	unsigned long val;
+	unsigned int val;
+	int err;
+
+	err = kstrtouint(buf, 10, &val);
+	if (err)
+		return err;
 
-	if (strict_strtoul(buf, 10, &val) || val > 1)
+	if (val > 1)
 		return -EINVAL;
 
 	fsp_onpad_hscr(psmouse, val);
diff --git a/drivers/input/mouse/synaptics.c b/drivers/input/mouse/synaptics.c
index a6dcd18e9adf..8081a0a5d602 100644
--- a/drivers/input/mouse/synaptics.c
+++ b/drivers/input/mouse/synaptics.c
@@ -269,19 +269,49 @@ static int synaptics_query_hardware(struct psmouse *psmouse)
 	return 0;
 }
 
-static int synaptics_set_absolute_mode(struct psmouse *psmouse)
+static int synaptics_set_advanced_gesture_mode(struct psmouse *psmouse)
+{
+	static unsigned char param = 0xc8;
+	struct synaptics_data *priv = psmouse->private;
+
+	if (!SYN_CAP_ADV_GESTURE(priv->ext_cap_0c))
+		return 0;
+
+	if (psmouse_sliced_command(psmouse, SYN_QUE_MODEL))
+		return -1;
+
+	if (ps2_command(&psmouse->ps2dev, &param, PSMOUSE_CMD_SETRATE))
+		return -1;
+
+	/* Advanced gesture mode also sends multi finger data */
+	priv->capabilities |= BIT(1);
+
+	return 0;
+}
+
+static int synaptics_set_mode(struct psmouse *psmouse)
 {
 	struct synaptics_data *priv = psmouse->private;
 
-	priv->mode = SYN_BIT_ABSOLUTE_MODE;
-	if (SYN_ID_MAJOR(priv->identity) >= 4)
+	priv->mode = 0;
+	if (priv->absolute_mode)
+		priv->mode |= SYN_BIT_ABSOLUTE_MODE;
+	if (priv->disable_gesture)
 		priv->mode |= SYN_BIT_DISABLE_GESTURE;
+	if (psmouse->rate >= 80)
+		priv->mode |= SYN_BIT_HIGH_RATE;
 	if (SYN_CAP_EXTENDED(priv->capabilities))
 		priv->mode |= SYN_BIT_W_MODE;
 
 	if (synaptics_mode_cmd(psmouse, priv->mode))
 		return -1;
 
+	if (priv->absolute_mode &&
+	    synaptics_set_advanced_gesture_mode(psmouse)) {
+		psmouse_err(psmouse, "Advanced gesture mode init failed.\n");
+		return -1;
+	}
+
 	return 0;
 }
 
@@ -300,26 +330,6 @@ static void synaptics_set_rate(struct psmouse *psmouse, unsigned int rate)
 	synaptics_mode_cmd(psmouse, priv->mode);
 }
 
-static int synaptics_set_advanced_gesture_mode(struct psmouse *psmouse)
-{
-	static unsigned char param = 0xc8;
-	struct synaptics_data *priv = psmouse->private;
-
-	if (!(SYN_CAP_ADV_GESTURE(priv->ext_cap_0c) ||
-			SYN_CAP_IMAGE_SENSOR(priv->ext_cap_0c)))
-		return 0;
-
-	if (psmouse_sliced_command(psmouse, SYN_QUE_MODEL))
-		return -1;
-	if (ps2_command(&psmouse->ps2dev, &param, PSMOUSE_CMD_SETRATE))
-		return -1;
-
-	/* Advanced gesture mode also sends multi finger data */
-	priv->capabilities |= BIT(1);
-
-	return 0;
-}
-
 /*****************************************************************************
  *	Synaptics pass-through PS/2 port support
  ****************************************************************************/
@@ -1143,8 +1153,24 @@ static void set_input_params(struct input_dev *dev, struct synaptics_data *priv)
 {
 	int i;
 
+	/* Things that apply to both modes */
 	__set_bit(INPUT_PROP_POINTER, dev->propbit);
+	__set_bit(EV_KEY, dev->evbit);
+	__set_bit(BTN_LEFT, dev->keybit);
+	__set_bit(BTN_RIGHT, dev->keybit);
 
+	if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities))
+		__set_bit(BTN_MIDDLE, dev->keybit);
+
+	if (!priv->absolute_mode) {
+		/* Relative mode */
+		__set_bit(EV_REL, dev->evbit);
+		__set_bit(REL_X, dev->relbit);
+		__set_bit(REL_Y, dev->relbit);
+		return;
+	}
+
+	/* Absolute mode */
 	__set_bit(EV_ABS, dev->evbit);
 	set_abs_position_params(dev, priv, ABS_X, ABS_Y);
 	input_set_abs_params(dev, ABS_PRESSURE, 0, 255, 0, 0);
@@ -1170,20 +1196,14 @@ static void set_input_params(struct input_dev *dev, struct synaptics_data *priv)
 	if (SYN_CAP_PALMDETECT(priv->capabilities))
 		input_set_abs_params(dev, ABS_TOOL_WIDTH, 0, 15, 0, 0);
 
-	__set_bit(EV_KEY, dev->evbit);
 	__set_bit(BTN_TOUCH, dev->keybit);
 	__set_bit(BTN_TOOL_FINGER, dev->keybit);
-	__set_bit(BTN_LEFT, dev->keybit);
-	__set_bit(BTN_RIGHT, dev->keybit);
 
 	if (SYN_CAP_MULTIFINGER(priv->capabilities)) {
 		__set_bit(BTN_TOOL_DOUBLETAP, dev->keybit);
 		__set_bit(BTN_TOOL_TRIPLETAP, dev->keybit);
 	}
 
-	if (SYN_CAP_MIDDLE_BUTTON(priv->capabilities))
-		__set_bit(BTN_MIDDLE, dev->keybit);
-
 	if (SYN_CAP_FOUR_BUTTON(priv->capabilities) ||
 	    SYN_CAP_MIDDLE_BUTTON(priv->capabilities)) {
 		__set_bit(BTN_FORWARD, dev->keybit);
@@ -1205,10 +1225,58 @@ static void set_input_params(struct input_dev *dev, struct synaptics_data *priv)
 	}
 }
 
+static ssize_t synaptics_show_disable_gesture(struct psmouse *psmouse,
+					      void *data, char *buf)
+{
+	struct synaptics_data *priv = psmouse->private;
+
+	return sprintf(buf, "%c\n", priv->disable_gesture ? '1' : '0');
+}
+
+static ssize_t synaptics_set_disable_gesture(struct psmouse *psmouse,
+					     void *data, const char *buf,
+					     size_t len)
+{
+	struct synaptics_data *priv = psmouse->private;
+	unsigned int value;
+	int err;
+
+	err = kstrtouint(buf, 10, &value);
+	if (err)
+		return err;
+
+	if (value > 1)
+		return -EINVAL;
+
+	if (value == priv->disable_gesture)
+		return len;
+
+	priv->disable_gesture = value;
+	if (value)
+		priv->mode |= SYN_BIT_DISABLE_GESTURE;
+	else
+		priv->mode &= ~SYN_BIT_DISABLE_GESTURE;
+
+	if (synaptics_mode_cmd(psmouse, priv->mode))
+		return -EIO;
+
+	return len;
+}
+
+PSMOUSE_DEFINE_ATTR(disable_gesture, S_IWUSR | S_IRUGO, NULL,
+		    synaptics_show_disable_gesture,
+		    synaptics_set_disable_gesture);
+
 static void synaptics_disconnect(struct psmouse *psmouse)
 {
+	struct synaptics_data *priv = psmouse->private;
+
+	if (!priv->absolute_mode && SYN_ID_DISGEST_SUPPORTED(priv->identity))
+		device_remove_file(&psmouse->ps2dev.serio->dev,
+				   &psmouse_attr_disable_gesture.dattr);
+
 	synaptics_reset(psmouse);
-	kfree(psmouse->private);
+	kfree(priv);
 	psmouse->private = NULL;
 }
 
@@ -1245,17 +1313,11 @@ static int synaptics_reconnect(struct psmouse *psmouse)
 		return -1;
 	}
 
-	if (synaptics_set_absolute_mode(psmouse)) {
+	if (synaptics_set_mode(psmouse)) {
 		psmouse_err(psmouse, "Unable to initialize device.\n");
 		return -1;
 	}
 
-	if (synaptics_set_advanced_gesture_mode(psmouse)) {
-		psmouse_err(psmouse,
-			    "Advanced gesture mode reconnect failed.\n");
-		return -1;
-	}
-
 	if (old_priv.identity != priv->identity ||
 	    old_priv.model_id != priv->model_id ||
 	    old_priv.capabilities != priv->capabilities ||
@@ -1332,20 +1394,18 @@ void __init synaptics_module_init(void)
 	broken_olpc_ec = dmi_check_system(olpc_dmi_table);
 }
 
-int synaptics_init(struct psmouse *psmouse)
+static int __synaptics_init(struct psmouse *psmouse, bool absolute_mode)
 {
 	struct synaptics_data *priv;
+	int err = -1;
 
 	/*
-	 * The OLPC XO has issues with Synaptics' absolute mode; similarly to
-	 * the HGPK, it quickly degrades and the hardware becomes jumpy and
-	 * overly sensitive.  Not only that, but the constant packet spew
-	 * (even at a lowered 40pps rate) overloads the EC such that key
-	 * presses on the keyboard are missed.  Given all of that, don't
-	 * even attempt to use Synaptics mode.  Relative mode seems to work
-	 * just fine.
+	 * The OLPC XO has issues with Synaptics' absolute mode; the constant
+	 * packet spew overloads the EC such that key presses on the keyboard
+	 * are missed.  Given that, don't even attempt to use Absolute mode.
+	 * Relative mode seems to work just fine.
 	 */
-	if (broken_olpc_ec) {
+	if (absolute_mode && broken_olpc_ec) {
 		psmouse_info(psmouse,
 			     "OLPC XO detected, not enabling Synaptics protocol.\n");
 		return -ENODEV;
@@ -1362,13 +1422,12 @@ int synaptics_init(struct psmouse *psmouse)
 		goto init_fail;
 	}
 
-	if (synaptics_set_absolute_mode(psmouse)) {
-		psmouse_err(psmouse, "Unable to initialize device.\n");
-		goto init_fail;
-	}
+	priv->absolute_mode = absolute_mode;
+	if (SYN_ID_DISGEST_SUPPORTED(priv->identity))
+		priv->disable_gesture = true;
 
-	if (synaptics_set_advanced_gesture_mode(psmouse)) {
-		psmouse_err(psmouse, "Advanced gesture mode init failed.\n");
+	if (synaptics_set_mode(psmouse)) {
+		psmouse_err(psmouse, "Unable to initialize device.\n");
 		goto init_fail;
 	}
 
@@ -1393,12 +1452,19 @@ int synaptics_init(struct psmouse *psmouse)
 	psmouse->model = ((priv->model_id & 0x00ff0000) >> 8) |
 			  (priv->model_id & 0x000000ff);
 
-	psmouse->protocol_handler = synaptics_process_byte;
+	if (absolute_mode) {
+		psmouse->protocol_handler = synaptics_process_byte;
+		psmouse->pktsize = 6;
+	} else {
+		/* Relative mode follows standard PS/2 mouse protocol */
+		psmouse->protocol_handler = psmouse_process_byte;
+		psmouse->pktsize = 3;
+	}
+
 	psmouse->set_rate = synaptics_set_rate;
 	psmouse->disconnect = synaptics_disconnect;
 	psmouse->reconnect = synaptics_reconnect;
 	psmouse->cleanup = synaptics_reset;
-	psmouse->pktsize = 6;
 	/* Synaptics can usually stay in sync without extra help */
 	psmouse->resync_time = 0;
 
@@ -1417,11 +1483,32 @@ int synaptics_init(struct psmouse *psmouse)
 		psmouse->rate = 40;
 	}
 
+	if (!priv->absolute_mode && SYN_ID_DISGEST_SUPPORTED(priv->identity)) {
+		err = device_create_file(&psmouse->ps2dev.serio->dev,
+					 &psmouse_attr_disable_gesture.dattr);
+		if (err) {
+			psmouse_err(psmouse,
+				    "Failed to create disable_gesture attribute (%d)",
+				    err);
+			goto init_fail;
+		}
+	}
+
 	return 0;
 
  init_fail:
 	kfree(priv);
-	return -1;
+	return err;
+}
+
+int synaptics_init(struct psmouse *psmouse)
+{
+	return __synaptics_init(psmouse, true);
+}
+
+int synaptics_init_relative(struct psmouse *psmouse)
+{
+	return __synaptics_init(psmouse, false);
 }
 
 bool synaptics_supported(void)
diff --git a/drivers/input/mouse/synaptics.h b/drivers/input/mouse/synaptics.h
index 622aea8dd7e0..fd26ccca13d7 100644
--- a/drivers/input/mouse/synaptics.h
+++ b/drivers/input/mouse/synaptics.h
@@ -100,6 +100,7 @@
 #define SYN_ID_MINOR(i)			(((i) >> 16) & 0xff)
 #define SYN_ID_FULL(i)			((SYN_ID_MAJOR(i) << 8) | SYN_ID_MINOR(i))
 #define SYN_ID_IS_SYNAPTICS(i)		((((i) >> 8) & 0xff) == 0x47)
+#define SYN_ID_DISGEST_SUPPORTED(i)	(SYN_ID_MAJOR(i) >= 4)
 
 /* synaptics special commands */
 #define SYN_PS_SET_MODE2		0x14
@@ -159,6 +160,9 @@ struct synaptics_data {
 	unsigned char mode;			/* current mode byte */
 	int scroll;
 
+	bool absolute_mode;			/* run in Absolute mode */
+	bool disable_gesture;			/* disable gestures */
+
 	struct serio *pt_port;			/* Pass-through serio port */
 
 	struct synaptics_mt_state mt_state;	/* Current mt finger state */
@@ -175,6 +179,7 @@ struct synaptics_data {
 void synaptics_module_init(void);
 int synaptics_detect(struct psmouse *psmouse, bool set_properties);
 int synaptics_init(struct psmouse *psmouse);
+int synaptics_init_relative(struct psmouse *psmouse);
 void synaptics_reset(struct psmouse *psmouse);
 bool synaptics_supported(void);
 
diff --git a/drivers/input/mouse/trackpoint.c b/drivers/input/mouse/trackpoint.c
index 54b2fa892e19..22b218018137 100644
--- a/drivers/input/mouse/trackpoint.c
+++ b/drivers/input/mouse/trackpoint.c
@@ -89,10 +89,12 @@ static ssize_t trackpoint_set_int_attr(struct psmouse *psmouse, void *data,
 	struct trackpoint_data *tp = psmouse->private;
 	struct trackpoint_attr_data *attr = data;
 	unsigned char *field = (unsigned char *)((char *)tp + attr->field_offset);
-	unsigned long value;
+	unsigned char value;
+	int err;
 
-	if (strict_strtoul(buf, 10, &value) || value > 255)
-		return -EINVAL;
+	err = kstrtou8(buf, 10, &value);
+	if (err)
+		return err;
 
 	*field = value;
 	trackpoint_write(&psmouse->ps2dev, attr->command, value);
@@ -115,9 +117,14 @@ static ssize_t trackpoint_set_bit_attr(struct psmouse *psmouse, void *data,
 	struct trackpoint_data *tp = psmouse->private;
 	struct trackpoint_attr_data *attr = data;
 	unsigned char *field = (unsigned char *)((char *)tp + attr->field_offset);
-	unsigned long value;
+	unsigned int value;
+	int err;
+
+	err = kstrtouint(buf, 10, &value);
+	if (err)
+		return err;
 
-	if (strict_strtoul(buf, 10, &value) || value > 1)
+	if (value > 1)
 		return -EINVAL;
 
 	if (attr->inverted)
diff --git a/drivers/input/serio/altera_ps2.c b/drivers/input/serio/altera_ps2.c
index d363dc4571a3..35864c6130bb 100644
--- a/drivers/input/serio/altera_ps2.c
+++ b/drivers/input/serio/altera_ps2.c
@@ -196,18 +196,7 @@ static struct platform_driver altera_ps2_driver = {
 		.of_match_table = altera_ps2_match,
 	},
 };
-
-static int __init altera_ps2_init(void)
-{
-	return platform_driver_register(&altera_ps2_driver);
-}
-module_init(altera_ps2_init);
-
-static void __exit altera_ps2_exit(void)
-{
-	platform_driver_unregister(&altera_ps2_driver);
-}
-module_exit(altera_ps2_exit);
+module_platform_driver(altera_ps2_driver);
 
 MODULE_DESCRIPTION("Altera University Program PS2 controller driver");
 MODULE_AUTHOR("Thomas Chou <thomas@wytron.com.tw>");
diff --git a/drivers/input/serio/at32psif.c b/drivers/input/serio/at32psif.c
index 95280f9207e1..421a7442e464 100644
--- a/drivers/input/serio/at32psif.c
+++ b/drivers/input/serio/at32psif.c
@@ -358,19 +358,7 @@ static struct platform_driver psif_driver = {
 	.suspend	= psif_suspend,
 	.resume		= psif_resume,
 };
-
-static int __init psif_init(void)
-{
-	return platform_driver_probe(&psif_driver, psif_probe);
-}
-
-static void __exit psif_exit(void)
-{
-	platform_driver_unregister(&psif_driver);
-}
-
-module_init(psif_init);
-module_exit(psif_exit);
+module_platform_driver(psif_driver);
 
 MODULE_AUTHOR("Hans-Christian Egtvedt <egtvedt@samfundet.no>");
 MODULE_DESCRIPTION("Atmel AVR32 PSIF PS/2 driver");
diff --git a/drivers/input/serio/i8042.c b/drivers/input/serio/i8042.c
index d37a48e099d0..86564414b75a 100644
--- a/drivers/input/serio/i8042.c
+++ b/drivers/input/serio/i8042.c
@@ -991,7 +991,7 @@ static int i8042_controller_init(void)
  * Reset the controller and reset CRT to the original value set by BIOS.
  */
 
-static void i8042_controller_reset(void)
+static void i8042_controller_reset(bool force_reset)
 {
 	i8042_flush();
 
@@ -1016,7 +1016,7 @@ static void i8042_controller_reset(void)
  * Reset the controller if requested.
  */
 
-	if (i8042_reset)
+	if (i8042_reset || force_reset)
 		i8042_controller_selftest();
 
 /*
@@ -1139,9 +1139,9 @@ static int i8042_controller_resume(bool force_reset)
  * upsetting it.
  */
 
-static int i8042_pm_reset(struct device *dev)
+static int i8042_pm_suspend(struct device *dev)
 {
-	i8042_controller_reset();
+	i8042_controller_reset(true);
 
 	return 0;
 }
@@ -1163,13 +1163,20 @@ static int i8042_pm_thaw(struct device *dev)
 	return 0;
 }
 
+static int i8042_pm_reset(struct device *dev)
+{
+	i8042_controller_reset(false);
+
+	return 0;
+}
+
 static int i8042_pm_restore(struct device *dev)
 {
 	return i8042_controller_resume(false);
 }
 
 static const struct dev_pm_ops i8042_pm_ops = {
-	.suspend	= i8042_pm_reset,
+	.suspend	= i8042_pm_suspend,
 	.resume		= i8042_pm_resume,
 	.thaw		= i8042_pm_thaw,
 	.poweroff	= i8042_pm_reset,
@@ -1185,7 +1192,7 @@ static const struct dev_pm_ops i8042_pm_ops = {
 
 static void i8042_shutdown(struct platform_device *dev)
 {
-	i8042_controller_reset();
+	i8042_controller_reset(false);
 }
 
 static int __init i8042_create_kbd_port(void)
@@ -1424,7 +1431,7 @@ static int __init i8042_probe(struct platform_device *dev)
  out_fail:
 	i8042_free_aux_ports();	/* in case KBD failed but AUX not */
 	i8042_free_irqs();
-	i8042_controller_reset();
+	i8042_controller_reset(false);
 	i8042_platform_device = NULL;
 
 	return error;
@@ -1434,7 +1441,7 @@ static int __devexit i8042_remove(struct platform_device *dev)
 {
 	i8042_unregister_ports();
 	i8042_free_irqs();
-	i8042_controller_reset();
+	i8042_controller_reset(false);
 	i8042_platform_device = NULL;
 
 	return 0;
diff --git a/drivers/input/serio/rpckbd.c b/drivers/input/serio/rpckbd.c
index 7ec3c97dc1b9..8b44ddc8041c 100644
--- a/drivers/input/serio/rpckbd.c
+++ b/drivers/input/serio/rpckbd.c
@@ -143,16 +143,4 @@ static struct platform_driver rpckbd_driver = {
 		.owner	= THIS_MODULE,
 	},
 };
-
-static int __init rpckbd_init(void)
-{
-	return platform_driver_register(&rpckbd_driver);
-}
-
-static void __exit rpckbd_exit(void)
-{
-	platform_driver_unregister(&rpckbd_driver);
-}
-
-module_init(rpckbd_init);
-module_exit(rpckbd_exit);
+module_platform_driver(rpckbd_driver);
diff --git a/drivers/input/serio/xilinx_ps2.c b/drivers/input/serio/xilinx_ps2.c
index d64c5a43aaad..d96d4c2a76a9 100644
--- a/drivers/input/serio/xilinx_ps2.c
+++ b/drivers/input/serio/xilinx_ps2.c
@@ -253,7 +253,7 @@ static int __devinit xps2_of_probe(struct platform_device *ofdev)
 	}
 
 	/* Get IRQ for the device */
-	if (of_irq_to_resource(ofdev->dev.of_node, 0, &r_irq) == NO_IRQ) {
+	if (!of_irq_to_resource(ofdev->dev.of_node, 0, &r_irq)) {
 		dev_err(dev, "no IRQ found\n");
 		return -ENODEV;
 	}
@@ -369,19 +369,7 @@ static struct platform_driver xps2_of_driver = {
 	.probe		= xps2_of_probe,
 	.remove		= __devexit_p(xps2_of_remove),
 };
-
-static int __init xps2_init(void)
-{
-	return platform_driver_register(&xps2_of_driver);
-}
-
-static void __exit xps2_cleanup(void)
-{
-	platform_driver_unregister(&xps2_of_driver);
-}
-
-module_init(xps2_init);
-module_exit(xps2_cleanup);
+module_platform_driver(xps2_of_driver);
 
 MODULE_AUTHOR("Xilinx, Inc.");
 MODULE_DESCRIPTION("Xilinx XPS PS/2 driver");
diff --git a/drivers/input/tablet/aiptek.c b/drivers/input/tablet/aiptek.c
index d5ef3debd045..205d16aab441 100644
--- a/drivers/input/tablet/aiptek.c
+++ b/drivers/input/tablet/aiptek.c
@@ -1198,9 +1198,9 @@ static ssize_t
 store_tabletXtilt(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 {
 	struct aiptek *aiptek = dev_get_drvdata(dev);
-	long x;
+	int x;
 
-	if (strict_strtol(buf, 10, &x)) {
+	if (kstrtoint(buf, 10, &x)) {
 		size_t len = buf[count - 1] == '\n' ? count - 1 : count;
 
 		if (strncmp(buf, "disable", len))
@@ -1240,9 +1240,9 @@ static ssize_t
 store_tabletYtilt(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 {
 	struct aiptek *aiptek = dev_get_drvdata(dev);
-	long y;
+	int y;
 
-	if (strict_strtol(buf, 10, &y)) {
+	if (kstrtoint(buf, 10, &y)) {
 		size_t len = buf[count - 1] == '\n' ? count - 1 : count;
 
 		if (strncmp(buf, "disable", len))
@@ -1277,12 +1277,13 @@ static ssize_t
 store_tabletJitterDelay(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 {
 	struct aiptek *aiptek = dev_get_drvdata(dev);
-	long j;
+	int err, j;
 
-	if (strict_strtol(buf, 10, &j))
-		return -EINVAL;
+	err = kstrtoint(buf, 10, &j);
+	if (err)
+		return err;
 
-	aiptek->newSetting.jitterDelay = (int)j;
+	aiptek->newSetting.jitterDelay = j;
 	return count;
 }
 
@@ -1306,12 +1307,13 @@ static ssize_t
 store_tabletProgrammableDelay(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 {
 	struct aiptek *aiptek = dev_get_drvdata(dev);
-	long d;
+	int err, d;
 
-	if (strict_strtol(buf, 10, &d))
-		return -EINVAL;
+	err = kstrtoint(buf, 10, &d);
+	if (err)
+		return err;
 
-	aiptek->newSetting.programmableDelay = (int)d;
+	aiptek->newSetting.programmableDelay = d;
 	return count;
 }
 
@@ -1557,11 +1559,13 @@ static ssize_t
 store_tabletWheel(struct device *dev, struct device_attribute *attr, const char *buf, size_t count)
 {
 	struct aiptek *aiptek = dev_get_drvdata(dev);
-	long w;
+	int err, w;
 
-	if (strict_strtol(buf, 10, &w)) return -EINVAL;
+	err = kstrtoint(buf, 10, &w);
+	if (err)
+		return err;
 
-	aiptek->newSetting.wheel = (int)w;
+	aiptek->newSetting.wheel = w;
 	return count;
 }
 
diff --git a/drivers/input/tablet/wacom_sys.c b/drivers/input/tablet/wacom_sys.c
index 8f9cde3e0ec2..2a97b7e76db1 100644
--- a/drivers/input/tablet/wacom_sys.c
+++ b/drivers/input/tablet/wacom_sys.c
@@ -28,7 +28,9 @@
 #define HID_USAGE_Y_TILT		0x3e
 #define HID_USAGE_FINGER		0x22
 #define HID_USAGE_STYLUS		0x20
-#define HID_COLLECTION			0xc0
+#define HID_COLLECTION			0xa1
+#define HID_COLLECTION_LOGICAL		0x02
+#define HID_COLLECTION_END		0xc0
 
 enum {
 	WCM_UNDEFINED = 0,
@@ -66,7 +68,8 @@ static int wacom_get_report(struct usb_interface *intf, u8 type, u8 id,
 	do {
 		retval = usb_control_msg(dev, usb_rcvctrlpipe(dev, 0),
 				USB_REQ_GET_REPORT,
-				USB_TYPE_CLASS | USB_RECIP_INTERFACE,
+				USB_DIR_IN | USB_TYPE_CLASS |
+				USB_RECIP_INTERFACE,
 				(type << 8) + id,
 				intf->altsetting[0].desc.bInterfaceNumber,
 				buf, size, 100);
@@ -164,7 +167,70 @@ static void wacom_close(struct input_dev *dev)
 		usb_autopm_put_interface(wacom->intf);
 }
 
-static int wacom_parse_hid(struct usb_interface *intf, struct hid_descriptor *hid_desc,
+static int wacom_parse_logical_collection(unsigned char *report,
+					  struct wacom_features *features)
+{
+	int length = 0;
+
+	if (features->type == BAMBOO_PT) {
+
+		/* Logical collection is only used by 3rd gen Bamboo Touch */
+		features->pktlen = WACOM_PKGLEN_BBTOUCH3;
+		features->device_type = BTN_TOOL_DOUBLETAP;
+
+		/*
+		 * Stylus and Touch have same active area
+		 * so compute physical size based on stylus
+		 * data before its overwritten.
+		 */
+		features->x_phy =
+			(features->x_max * features->x_resolution) / 100;
+		features->y_phy =
+			(features->y_max * features->y_resolution) / 100;
+
+		features->x_max = features->y_max =
+			get_unaligned_le16(&report[10]);
+
+		length = 11;
+	}
+	return length;
+}
+
+/*
+ * Interface Descriptor of wacom devices can be incomplete and
+ * inconsistent so wacom_features table is used to store stylus
+ * device's packet lengths, various maximum values, and tablet
+ * resolution based on product ID's.
+ *
+ * For devices that contain 2 interfaces, wacom_features table is
+ * inaccurate for the touch interface.  Since the Interface Descriptor
+ * for touch interfaces has pretty complete data, this function exists
+ * to query tablet for this missing information instead of hard coding in
+ * an additional table.
+ *
+ * A typical Interface Descriptor for a stylus will contain a
+ * boot mouse application collection that is not of interest and this
+ * function will ignore it.
+ *
+ * It also contains a digitizer application collection that also is not
+ * of interest since any information it contains would be duplicate
+ * of what is in wacom_features. Usually it defines a report of an array
+ * of bytes that could be used as max length of the stylus packet returned.
+ * If it happens to define a Digitizer-Stylus Physical Collection then
+ * the X and Y logical values contain valid data but it is ignored.
+ *
+ * A typical Interface Descriptor for a touch interface will contain a
+ * Digitizer-Finger Physical Collection which will define both logical
+ * X/Y maximum as well as the physical size of tablet. Since touch
+ * interfaces haven't supported pressure or distance, this is enough
+ * information to override invalid values in the wacom_features table.
+ *
+ * 3rd gen Bamboo Touch no longer define a Digitizer-Finger Pysical
+ * Collection. Instead they define a Logical Collection with a single
+ * Logical Maximum for both X and Y.
+ */
+static int wacom_parse_hid(struct usb_interface *intf,
+			   struct hid_descriptor *hid_desc,
 			   struct wacom_features *features)
 {
 	struct usb_device *dev = interface_to_usbdev(intf);
@@ -244,8 +310,6 @@ static int wacom_parse_hid(struct usb_interface *intf, struct hid_descriptor *hi
 						/* penabled only accepts exact bytes of data */
 						if (features->type == TABLETPC2FG)
 							features->pktlen = WACOM_PKGLEN_GRAPHIRE;
-						if (features->type == BAMBOO_PT)
-							features->pktlen = WACOM_PKGLEN_BBFUN;
 						features->device_type = BTN_TOOL_PEN;
 						features->x_max =
 							get_unaligned_le16(&report[i + 3]);
@@ -287,8 +351,6 @@ static int wacom_parse_hid(struct usb_interface *intf, struct hid_descriptor *hi
 						/* penabled only accepts exact bytes of data */
 						if (features->type == TABLETPC2FG)
 							features->pktlen = WACOM_PKGLEN_GRAPHIRE;
-						if (features->type == BAMBOO_PT)
-							features->pktlen = WACOM_PKGLEN_BBFUN;
 						features->device_type = BTN_TOOL_PEN;
 						features->y_max =
 							get_unaligned_le16(&report[i + 3]);
@@ -302,6 +364,11 @@ static int wacom_parse_hid(struct usb_interface *intf, struct hid_descriptor *hi
 				i++;
 				break;
 
+			/*
+			 * Requiring Stylus Usage will ignore boot mouse
+			 * X/Y values and some cases of invalid Digitizer X/Y
+			 * values commonly reported.
+			 */
 			case HID_USAGE_STYLUS:
 				pen = 1;
 				i++;
@@ -309,10 +376,20 @@ static int wacom_parse_hid(struct usb_interface *intf, struct hid_descriptor *hi
 			}
 			break;
 
-		case HID_COLLECTION:
+		case HID_COLLECTION_END:
 			/* reset UsagePage and Finger */
 			finger = usage = 0;
 			break;
+
+		case HID_COLLECTION:
+			i++;
+			switch (report[i]) {
+			case HID_COLLECTION_LOGICAL:
+				i += wacom_parse_logical_collection(&report[i],
+								    features);
+				break;
+			}
+			break;
 		}
 	}
 
@@ -348,7 +425,8 @@ static int wacom_query_tablet_data(struct usb_interface *intf, struct wacom_feat
 						WAC_HID_FEATURE_REPORT,
 						report_id, rep_data, 4, 1);
 		} while ((error < 0 || rep_data[1] != 4) && limit++ < WAC_MSG_RETRIES);
-	} else if (features->type != TABLETPC) {
+	} else if (features->type != TABLETPC &&
+		   features->device_type == BTN_TOOL_PEN) {
 		do {
 			rep_data[0] = 2;
 			rep_data[1] = 2;
@@ -485,7 +563,8 @@ static int wacom_led_control(struct wacom *wacom)
 	if (!buf)
 		return -ENOMEM;
 
-	if (wacom->wacom_wac.features.type == WACOM_21UX2)
+	if (wacom->wacom_wac.features.type == WACOM_21UX2 ||
+	    wacom->wacom_wac.features.type == WACOM_24HD)
 		led = (wacom->led.select[1] << 4) | 0x40;
 
 	led |=  wacom->led.select[0] | 0x4;
@@ -704,6 +783,7 @@ static int wacom_initialize_leds(struct wacom *wacom)
 					   &intuos4_led_attr_group);
 		break;
 
+	case WACOM_24HD:
 	case WACOM_21UX2:
 		wacom->led.select[0] = 0;
 		wacom->led.select[1] = 0;
@@ -738,6 +818,7 @@ static void wacom_destroy_leds(struct wacom *wacom)
 				   &intuos4_led_attr_group);
 		break;
 
+	case WACOM_24HD:
 	case WACOM_21UX2:
 		sysfs_remove_group(&wacom->intf->dev.kobj,
 				   &cintiq_led_attr_group);
diff --git a/drivers/input/tablet/wacom_wac.c b/drivers/input/tablet/wacom_wac.c
index 2ee47d01a3b4..88672ec296c1 100644
--- a/drivers/input/tablet/wacom_wac.c
+++ b/drivers/input/tablet/wacom_wac.c
@@ -452,7 +452,7 @@ static void wacom_intuos_general(struct wacom_wac *wacom)
 	if ((data[1] & 0xb8) == 0xa0) {
 		t = (data[6] << 2) | ((data[7] >> 6) & 3);
 		if ((features->type >= INTUOS4S && features->type <= INTUOS4L) ||
-		    features->type == WACOM_21UX2) {
+		    features->type == WACOM_21UX2 || features->type == WACOM_24HD) {
 			t = (t << 1) | (data[1] & 1);
 		}
 		input_report_abs(input, ABS_PRESSURE, t);
@@ -519,6 +519,56 @@ static int wacom_intuos_irq(struct wacom_wac *wacom)
 				input_report_key(input, wacom->tool[1], 0);
 				input_report_abs(input, ABS_MISC, 0);
 			}
+		} else if (features->type == WACOM_24HD) {
+			input_report_key(input, BTN_0, (data[6] & 0x01));
+			input_report_key(input, BTN_1, (data[6] & 0x02));
+			input_report_key(input, BTN_2, (data[6] & 0x04));
+			input_report_key(input, BTN_3, (data[6] & 0x08));
+			input_report_key(input, BTN_4, (data[6] & 0x10));
+			input_report_key(input, BTN_5, (data[6] & 0x20));
+			input_report_key(input, BTN_6, (data[6] & 0x40));
+			input_report_key(input, BTN_7, (data[6] & 0x80));
+			input_report_key(input, BTN_8, (data[8] & 0x01));
+			input_report_key(input, BTN_9, (data[8] & 0x02));
+			input_report_key(input, BTN_A, (data[8] & 0x04));
+			input_report_key(input, BTN_B, (data[8] & 0x08));
+			input_report_key(input, BTN_C, (data[8] & 0x10));
+			input_report_key(input, BTN_X, (data[8] & 0x20));
+			input_report_key(input, BTN_Y, (data[8] & 0x40));
+			input_report_key(input, BTN_Z, (data[8] & 0x80));
+
+			/*
+			 * Three "buttons" are available on the 24HD which are
+			 * physically implemented as a touchstrip. Each button
+			 * is approximately 3 bits wide with a 2 bit spacing.
+			 * The raw touchstrip bits are stored at:
+			 *    ((data[3] & 0x1f) << 8) | data[4])
+			 */
+			input_report_key(input, KEY_PROG1, data[4] & 0x07);
+			input_report_key(input, KEY_PROG2, data[4] & 0xE0);
+			input_report_key(input, KEY_PROG3, data[3] & 0x1C);
+
+			if (data[1] & 0x80) {
+				input_report_abs(input, ABS_WHEEL, (data[1] & 0x7f));
+			} else {
+				/* Out of proximity, clear wheel value. */
+				input_report_abs(input, ABS_WHEEL, 0);
+			}
+
+			if (data[2] & 0x80) {
+				input_report_abs(input, ABS_THROTTLE, (data[2] & 0x7f));
+			} else {
+				/* Out of proximity, clear second wheel value. */
+				input_report_abs(input, ABS_THROTTLE, 0);
+			}
+
+			if (data[1] | data[2] | (data[3] & 0x1f) | data[4] | data[6] | data[8]) {
+				input_report_key(input, wacom->tool[1], 1);
+				input_report_abs(input, ABS_MISC, PAD_DEVICE_ID);
+			} else {
+				input_report_key(input, wacom->tool[1], 0);
+				input_report_abs(input, ABS_MISC, 0);
+			}
 		} else {
 			if (features->type == WACOM_21UX2) {
 				input_report_key(input, BTN_0, (data[5] & 0x01));
@@ -799,6 +849,9 @@ static int wacom_bpt_touch(struct wacom_wac *wacom)
 	unsigned char *data = wacom->data;
 	int i;
 
+	if (data[0] != 0x02)
+	    return 0;
+
 	for (i = 0; i < 2; i++) {
 		int offset = (data[1] & 0x80) ? (8 * i) : (9 * i);
 		bool touch = data[offset + 3] & 0x80;
@@ -837,18 +890,77 @@ static int wacom_bpt_touch(struct wacom_wac *wacom)
 	return 0;
 }
 
+static void wacom_bpt3_touch_msg(struct wacom_wac *wacom, unsigned char *data)
+{
+	struct input_dev *input = wacom->input;
+	int slot_id = data[0] - 2;  /* data[0] is between 2 and 17 */
+	bool touch = data[1] & 0x80;
+
+	touch = touch && !wacom->shared->stylus_in_proximity;
+
+	input_mt_slot(input, slot_id);
+	input_mt_report_slot_state(input, MT_TOOL_FINGER, touch);
+
+	if (touch) {
+		int x = (data[2] << 4) | (data[4] >> 4);
+		int y = (data[3] << 4) | (data[4] & 0x0f);
+		int w = data[6];
+
+		input_report_abs(input, ABS_MT_POSITION_X, x);
+		input_report_abs(input, ABS_MT_POSITION_Y, y);
+		input_report_abs(input, ABS_MT_TOUCH_MAJOR, w);
+	}
+}
+
+static void wacom_bpt3_button_msg(struct wacom_wac *wacom, unsigned char *data)
+{
+	struct input_dev *input = wacom->input;
+
+	input_report_key(input, BTN_LEFT, (data[1] & 0x08) != 0);
+	input_report_key(input, BTN_FORWARD, (data[1] & 0x04) != 0);
+	input_report_key(input, BTN_BACK, (data[1] & 0x02) != 0);
+	input_report_key(input, BTN_RIGHT, (data[1] & 0x01) != 0);
+}
+
+static int wacom_bpt3_touch(struct wacom_wac *wacom)
+{
+	struct input_dev *input = wacom->input;
+	unsigned char *data = wacom->data;
+	int count = data[1] & 0x03;
+	int i;
+
+	if (data[0] != 0x02)
+	    return 0;
+
+	/* data has up to 7 fixed sized 8-byte messages starting at data[2] */
+	for (i = 0; i < count; i++) {
+		int offset = (8 * i) + 2;
+		int msg_id = data[offset];
+
+		if (msg_id >= 2 && msg_id <= 17)
+			wacom_bpt3_touch_msg(wacom, data + offset);
+		else if (msg_id == 128)
+			wacom_bpt3_button_msg(wacom, data + offset);
+
+	}
+
+	input_mt_report_pointer_emulation(input, true);
+
+	input_sync(input);
+
+	return 0;
+}
+
 static int wacom_bpt_pen(struct wacom_wac *wacom)
 {
 	struct input_dev *input = wacom->input;
 	unsigned char *data = wacom->data;
 	int prox = 0, x = 0, y = 0, p = 0, d = 0, pen = 0, btn1 = 0, btn2 = 0;
 
-	/*
-	 * Similar to Graphire protocol, data[1] & 0x20 is proximity and
-	 * data[1] & 0x18 is tool ID.  0x30 is safety check to ignore
-	 * 2 unused tool ID's.
-	 */
-	prox = (data[1] & 0x30) == 0x30;
+	if (data[0] != 0x02)
+	    return 0;
+
+	prox = (data[1] & 0x20) == 0x20;
 
 	/*
 	 * All reports shared between PEN and RUBBER tool must be
@@ -912,7 +1024,9 @@ static int wacom_bpt_irq(struct wacom_wac *wacom, size_t len)
 {
 	if (len == WACOM_PKGLEN_BBTOUCH)
 		return wacom_bpt_touch(wacom);
-	else if (len == WACOM_PKGLEN_BBFUN)
+	else if (len == WACOM_PKGLEN_BBTOUCH3)
+		return wacom_bpt3_touch(wacom);
+	else if (len == WACOM_PKGLEN_BBFUN || len == WACOM_PKGLEN_BBPEN)
 		return wacom_bpt_pen(wacom);
 
 	return 0;
@@ -955,6 +1069,7 @@ void wacom_wac_irq(struct wacom_wac *wacom_wac, size_t len)
 	case CINTIQ:
 	case WACOM_BEE:
 	case WACOM_21UX2:
+	case WACOM_24HD:
 		sync = wacom_intuos_irq(wacom_wac);
 		break;
 
@@ -1031,9 +1146,9 @@ void wacom_setup_device_quirks(struct wacom_features *features)
 	    features->type == BAMBOO_PT)
 		features->quirks |= WACOM_QUIRK_MULTI_INPUT;
 
-	/* quirks for bamboo touch */
+	/* quirk for bamboo touch with 2 low res touches */
 	if (features->type == BAMBOO_PT &&
-	    features->device_type == BTN_TOOL_DOUBLETAP) {
+	    features->pktlen == WACOM_PKGLEN_BBTOUCH) {
 		features->x_max <<= 5;
 		features->y_max <<= 5;
 		features->x_fuzz <<= 5;
@@ -1110,6 +1225,26 @@ void wacom_setup_input_capabilities(struct input_dev *input_dev,
 		__set_bit(INPUT_PROP_POINTER, input_dev->propbit);
 		break;
 
+	case WACOM_24HD:
+		__set_bit(BTN_A, input_dev->keybit);
+		__set_bit(BTN_B, input_dev->keybit);
+		__set_bit(BTN_C, input_dev->keybit);
+		__set_bit(BTN_X, input_dev->keybit);
+		__set_bit(BTN_Y, input_dev->keybit);
+		__set_bit(BTN_Z, input_dev->keybit);
+
+		for (i = 0; i < 10; i++)
+			__set_bit(BTN_0 + i, input_dev->keybit);
+
+		__set_bit(KEY_PROG1, input_dev->keybit);
+		__set_bit(KEY_PROG2, input_dev->keybit);
+		__set_bit(KEY_PROG3, input_dev->keybit);
+
+		input_set_abs_params(input_dev, ABS_Z, -900, 899, 0, 0);
+		input_set_abs_params(input_dev, ABS_THROTTLE, 0, 71, 0, 0);
+		wacom_setup_cintiq(wacom_wac);
+		break;
+
 	case WACOM_21UX2:
 		__set_bit(BTN_A, input_dev->keybit);
 		__set_bit(BTN_B, input_dev->keybit);
@@ -1240,7 +1375,21 @@ void wacom_setup_input_capabilities(struct input_dev *input_dev,
 			__set_bit(BTN_TOOL_FINGER, input_dev->keybit);
 			__set_bit(BTN_TOOL_DOUBLETAP, input_dev->keybit);
 
-			input_mt_init_slots(input_dev, 2);
+			if (features->pktlen == WACOM_PKGLEN_BBTOUCH3) {
+				__set_bit(BTN_TOOL_TRIPLETAP,
+					  input_dev->keybit);
+				__set_bit(BTN_TOOL_QUADTAP,
+					  input_dev->keybit);
+
+				input_mt_init_slots(input_dev, 16);
+
+				input_set_abs_params(input_dev,
+						     ABS_MT_TOUCH_MAJOR,
+						     0, 255, 0, 0);
+			} else {
+				input_mt_init_slots(input_dev, 2);
+			}
+
 			input_set_abs_params(input_dev, ABS_MT_POSITION_X,
 					     0, features->x_max,
 					     features->x_fuzz, 0);
@@ -1425,6 +1574,9 @@ static const struct wacom_features wacom_features_0xBB =
 static const struct wacom_features wacom_features_0xBC =
 	{ "Wacom Intuos4 WL",     WACOM_PKGLEN_INTUOS,    40840, 25400, 2047,
 	  63, INTUOS4, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
+static const struct wacom_features wacom_features_0xF4 =
+	{ "Wacom Cintiq 24HD",    WACOM_PKGLEN_INTUOS,   104480, 65600, 2047,
+	  63, WACOM_24HD, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
 static const struct wacom_features wacom_features_0x3F =
 	{ "Wacom Cintiq 21UX",    WACOM_PKGLEN_INTUOS,    87200, 65600, 1023,
 	  63, CINTIQ, WACOM_INTUOS3_RES, WACOM_INTUOS3_RES };
@@ -1509,6 +1661,15 @@ static const struct wacom_features wacom_features_0xDA =
 static struct wacom_features wacom_features_0xDB =
 	{ "Wacom Bamboo 2FG 6x8 SE", WACOM_PKGLEN_BBFUN,  21648, 13700, 1023,
 	  31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0xDD =
+        { "Wacom Bamboo Connect", WACOM_PKGLEN_BBPEN,     14720,  9200, 1023,
+          31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0xDE =
+        { "Wacom Bamboo 16FG 4x5", WACOM_PKGLEN_BBPEN,    14720,  9200, 1023,
+          31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
+static const struct wacom_features wacom_features_0xDF =
+        { "Wacom Bamboo 16FG 6x8", WACOM_PKGLEN_BBPEN,    21648, 13700, 1023,
+          31, BAMBOO_PT, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
 static const struct wacom_features wacom_features_0x6004 =
 	{ "ISD-V4",               WACOM_PKGLEN_GRAPHIRE,  12800,  8000,  255,
 	  0, TABLETPC, WACOM_INTUOS_RES, WACOM_INTUOS_RES };
@@ -1604,6 +1765,9 @@ const struct usb_device_id wacom_ids[] = {
 	{ USB_DEVICE_WACOM(0xD8) },
 	{ USB_DEVICE_WACOM(0xDA) },
 	{ USB_DEVICE_WACOM(0xDB) },
+	{ USB_DEVICE_WACOM(0xDD) },
+	{ USB_DEVICE_WACOM(0xDE) },
+	{ USB_DEVICE_WACOM(0xDF) },
 	{ USB_DEVICE_WACOM(0xF0) },
 	{ USB_DEVICE_WACOM(0xCC) },
 	{ USB_DEVICE_WACOM(0x90) },
@@ -1616,6 +1780,7 @@ const struct usb_device_id wacom_ids[] = {
 	{ USB_DEVICE_WACOM(0xE6) },
 	{ USB_DEVICE_WACOM(0xEC) },
 	{ USB_DEVICE_WACOM(0x47) },
+	{ USB_DEVICE_WACOM(0xF4) },
 	{ USB_DEVICE_LENOVO(0x6004) },
 	{ }
 };
diff --git a/drivers/input/tablet/wacom_wac.h b/drivers/input/tablet/wacom_wac.h
index 53eb71b68330..050acaefee7d 100644
--- a/drivers/input/tablet/wacom_wac.h
+++ b/drivers/input/tablet/wacom_wac.h
@@ -12,7 +12,7 @@
 #include <linux/types.h>
 
 /* maximum packet length for USB devices */
-#define WACOM_PKGLEN_MAX	32
+#define WACOM_PKGLEN_MAX	64
 
 /* packet length for individual models */
 #define WACOM_PKGLEN_PENPRTN	 7
@@ -22,6 +22,8 @@
 #define WACOM_PKGLEN_TPC1FG	 5
 #define WACOM_PKGLEN_TPC2FG	14
 #define WACOM_PKGLEN_BBTOUCH	20
+#define WACOM_PKGLEN_BBTOUCH3	64
+#define WACOM_PKGLEN_BBPEN	10
 
 /* device IDs */
 #define STYLUS_DEVICE_ID	0x02
@@ -57,6 +59,7 @@ enum {
 	INTUOS4S,
 	INTUOS4,
 	INTUOS4L,
+	WACOM_24HD,
 	WACOM_21UX2,
 	CINTIQ,
 	WACOM_BEE,
diff --git a/drivers/input/touchscreen/88pm860x-ts.c b/drivers/input/touchscreen/88pm860x-ts.c
index b3aebc2166ba..05f30b73c3c3 100644
--- a/drivers/input/touchscreen/88pm860x-ts.c
+++ b/drivers/input/touchscreen/88pm860x-ts.c
@@ -217,18 +217,7 @@ static struct platform_driver pm860x_touch_driver = {
 	.probe	= pm860x_touch_probe,
 	.remove	= __devexit_p(pm860x_touch_remove),
 };
-
-static int __init pm860x_touch_init(void)
-{
-	return platform_driver_register(&pm860x_touch_driver);
-}
-module_init(pm860x_touch_init);
-
-static void __exit pm860x_touch_exit(void)
-{
-	platform_driver_unregister(&pm860x_touch_driver);
-}
-module_exit(pm860x_touch_exit);
+module_platform_driver(pm860x_touch_driver);
 
 MODULE_DESCRIPTION("Touchscreen driver for Marvell Semiconductor 88PM860x");
 MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
diff --git a/drivers/input/touchscreen/Kconfig b/drivers/input/touchscreen/Kconfig
index 3488ffe1fa0a..4af2a18eb3ba 100644
--- a/drivers/input/touchscreen/Kconfig
+++ b/drivers/input/touchscreen/Kconfig
@@ -98,6 +98,19 @@ config TOUCHSCREEN_ATMEL_MXT
 	  To compile this driver as a module, choose M here: the
 	  module will be called atmel_mxt_ts.
 
+config TOUCHSCREEN_AUO_PIXCIR
+	tristate "AUO in-cell touchscreen using Pixcir ICs"
+	depends on I2C
+	depends on GPIOLIB
+	help
+	  Say Y here if you have a AUO display with in-cell touchscreen
+	  using Pixcir ICs.
+
+	  If unsure, say N.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called auo-pixcir-ts.
+
 config TOUCHSCREEN_BITSY
 	tristate "Compaq iPAQ H3600 (Bitsy) touchscreen"
 	depends on SA1100_BITSY
@@ -177,6 +190,16 @@ config TOUCHSCREEN_EETI
 	  To compile this driver as a module, choose M here: the
 	  module will be called eeti_ts.
 
+config TOUCHSCREEN_EGALAX
+	tristate "EETI eGalax multi-touch panel support"
+	depends on I2C
+	help
+	  Say Y here to enable support for I2C connected EETI
+	  eGalax multi-touch panels.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called egalax_ts.
+
 config TOUCHSCREEN_FUJITSU
 	tristate "Fujitsu serial touchscreen"
 	select SERIO
@@ -435,6 +458,18 @@ config TOUCHSCREEN_UCB1400
 	  To compile this driver as a module, choose M here: the
 	  module will be called ucb1400_ts.
 
+config TOUCHSCREEN_PIXCIR
+	tristate "PIXCIR I2C touchscreens"
+	depends on I2C
+	help
+	  Say Y here if you have a pixcir i2c touchscreen
+	  controller.
+
+	  If unsure, say N.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called pixcir_i2c_ts.
+
 config TOUCHSCREEN_WM831X
 	tristate "Support for WM831x touchscreen controllers"
 	depends on MFD_WM831X
@@ -541,6 +576,7 @@ config TOUCHSCREEN_USB_COMPOSITE
 	  - GoTop Super_Q2/GogoPen/PenPower tablets
 	  - JASTEC USB Touch Controller/DigiTech DTR-02U
 	  - Zytronic controllers
+	  - Elo TouchSystems 2700 IntelliTouch
 
 	  Have a look at <http://linux.chapter7.ch/touchkit/> for
 	  a usage description and the required user-space stuff.
@@ -620,6 +656,11 @@ config TOUCHSCREEN_USB_JASTEC
 	bool "JASTEC/DigiTech DTR-02U USB touch controller device support" if EXPERT
 	depends on TOUCHSCREEN_USB_COMPOSITE
 
+config TOUCHSCREEN_USB_ELO
+	default y
+	bool "Elo TouchSystems 2700 IntelliTouch controller device support" if EXPERT
+	depends on TOUCHSCREEN_USB_COMPOSITE
+
 config TOUCHSCREEN_USB_E2I
 	default y
 	bool "e2i Touchscreen controller (e.g. from Mimo 740)"
diff --git a/drivers/input/touchscreen/Makefile b/drivers/input/touchscreen/Makefile
index f957676035a4..496091e88460 100644
--- a/drivers/input/touchscreen/Makefile
+++ b/drivers/input/touchscreen/Makefile
@@ -14,6 +14,7 @@ obj-$(CONFIG_TOUCHSCREEN_AD7879_SPI)	+= ad7879-spi.o
 obj-$(CONFIG_TOUCHSCREEN_ADS7846)	+= ads7846.o
 obj-$(CONFIG_TOUCHSCREEN_ATMEL_MXT)	+= atmel_mxt_ts.o
 obj-$(CONFIG_TOUCHSCREEN_ATMEL_TSADCC)	+= atmel_tsadcc.o
+obj-$(CONFIG_TOUCHSCREEN_AUO_PIXCIR)	+= auo-pixcir-ts.o
 obj-$(CONFIG_TOUCHSCREEN_BITSY)		+= h3600_ts_input.o
 obj-$(CONFIG_TOUCHSCREEN_BU21013)       += bu21013_ts.o
 obj-$(CONFIG_TOUCHSCREEN_CY8CTMG110)	+= cy8ctmg110_ts.o
@@ -23,6 +24,7 @@ obj-$(CONFIG_TOUCHSCREEN_HAMPSHIRE)	+= hampshire.o
 obj-$(CONFIG_TOUCHSCREEN_GUNZE)		+= gunze.o
 obj-$(CONFIG_TOUCHSCREEN_EETI)		+= eeti_ts.o
 obj-$(CONFIG_TOUCHSCREEN_ELO)		+= elo.o
+obj-$(CONFIG_TOUCHSCREEN_EGALAX)	+= egalax_ts.o
 obj-$(CONFIG_TOUCHSCREEN_FUJITSU)	+= fujitsu_ts.o
 obj-$(CONFIG_TOUCHSCREEN_INEXIO)	+= inexio.o
 obj-$(CONFIG_TOUCHSCREEN_INTEL_MID)	+= intel-mid-touch.o
@@ -39,6 +41,7 @@ obj-$(CONFIG_TOUCHSCREEN_HTCPEN)	+= htcpen.o
 obj-$(CONFIG_TOUCHSCREEN_USB_COMPOSITE)	+= usbtouchscreen.o
 obj-$(CONFIG_TOUCHSCREEN_PCAP)		+= pcap_ts.o
 obj-$(CONFIG_TOUCHSCREEN_PENMOUNT)	+= penmount.o
+obj-$(CONFIG_TOUCHSCREEN_PIXCIR)	+= pixcir_i2c_ts.o
 obj-$(CONFIG_TOUCHSCREEN_S3C2410)	+= s3c2410_ts.o
 obj-$(CONFIG_TOUCHSCREEN_ST1232)	+= st1232.o
 obj-$(CONFIG_TOUCHSCREEN_STMPE)		+= stmpe-ts.o
diff --git a/drivers/input/touchscreen/ad7877.c b/drivers/input/touchscreen/ad7877.c
index baa43df6502d..49a36df0b752 100644
--- a/drivers/input/touchscreen/ad7877.c
+++ b/drivers/input/touchscreen/ad7877.c
@@ -488,10 +488,10 @@ static ssize_t ad7877_disable_store(struct device *dev,
 				     const char *buf, size_t count)
 {
 	struct ad7877 *ts = dev_get_drvdata(dev);
-	unsigned long val;
+	unsigned int val;
 	int error;
 
-	error = strict_strtoul(buf, 10, &val);
+	error = kstrtouint(buf, 10, &val);
 	if (error)
 		return error;
 
@@ -518,10 +518,10 @@ static ssize_t ad7877_dac_store(struct device *dev,
 				     const char *buf, size_t count)
 {
 	struct ad7877 *ts = dev_get_drvdata(dev);
-	unsigned long val;
+	unsigned int val;
 	int error;
 
-	error = strict_strtoul(buf, 10, &val);
+	error = kstrtouint(buf, 10, &val);
 	if (error)
 		return error;
 
@@ -548,10 +548,10 @@ static ssize_t ad7877_gpio3_store(struct device *dev,
 				     const char *buf, size_t count)
 {
 	struct ad7877 *ts = dev_get_drvdata(dev);
-	unsigned long val;
+	unsigned int val;
 	int error;
 
-	error = strict_strtoul(buf, 10, &val);
+	error = kstrtouint(buf, 10, &val);
 	if (error)
 		return error;
 
@@ -579,10 +579,10 @@ static ssize_t ad7877_gpio4_store(struct device *dev,
 				     const char *buf, size_t count)
 {
 	struct ad7877 *ts = dev_get_drvdata(dev);
-	unsigned long val;
+	unsigned int val;
 	int error;
 
-	error = strict_strtoul(buf, 10, &val);
+	error = kstrtouint(buf, 10, &val);
 	if (error)
 		return error;
 
@@ -853,7 +853,6 @@ static SIMPLE_DEV_PM_OPS(ad7877_pm, ad7877_suspend, ad7877_resume);
 static struct spi_driver ad7877_driver = {
 	.driver = {
 		.name	= "ad7877",
-		.bus	= &spi_bus_type,
 		.owner	= THIS_MODULE,
 		.pm	= &ad7877_pm,
 	},
diff --git a/drivers/input/touchscreen/ad7879-i2c.c b/drivers/input/touchscreen/ad7879-i2c.c
index c789b974c795..0dac6712f42b 100644
--- a/drivers/input/touchscreen/ad7879-i2c.c
+++ b/drivers/input/touchscreen/ad7879-i2c.c
@@ -16,30 +16,6 @@
 
 #define AD7879_DEVID		0x79	/* AD7879-1/AD7889-1 */
 
-#ifdef CONFIG_PM_SLEEP
-static int ad7879_i2c_suspend(struct device *dev)
-{
-	struct i2c_client *client = to_i2c_client(dev);
-	struct ad7879 *ts = i2c_get_clientdata(client);
-
-	ad7879_suspend(ts);
-
-	return 0;
-}
-
-static int ad7879_i2c_resume(struct device *dev)
-{
-	struct i2c_client *client = to_i2c_client(dev);
-	struct ad7879 *ts = i2c_get_clientdata(client);
-
-	ad7879_resume(ts);
-
-	return 0;
-}
-#endif
-
-static SIMPLE_DEV_PM_OPS(ad7879_i2c_pm, ad7879_i2c_suspend, ad7879_i2c_resume);
-
 /* All registers are word-sized.
  * AD7879 uses a high-byte first convention.
  */
@@ -47,7 +23,7 @@ static int ad7879_i2c_read(struct device *dev, u8 reg)
 {
 	struct i2c_client *client = to_i2c_client(dev);
 
-	return swab16(i2c_smbus_read_word_data(client, reg));
+	return i2c_smbus_read_word_swapped(client, reg);
 }
 
 static int ad7879_i2c_multi_read(struct device *dev,
@@ -68,7 +44,7 @@ static int ad7879_i2c_write(struct device *dev, u8 reg, u16 val)
 {
 	struct i2c_client *client = to_i2c_client(dev);
 
-	return i2c_smbus_write_word_data(client, reg, swab16(val));
+	return i2c_smbus_write_word_swapped(client, reg, val);
 }
 
 static const struct ad7879_bus_ops ad7879_i2c_bus_ops = {
@@ -119,7 +95,7 @@ static struct i2c_driver ad7879_i2c_driver = {
 	.driver = {
 		.name	= "ad7879",
 		.owner	= THIS_MODULE,
-		.pm	= &ad7879_i2c_pm,
+		.pm	= &ad7879_pm_ops,
 	},
 	.probe		= ad7879_i2c_probe,
 	.remove		= __devexit_p(ad7879_i2c_remove),
@@ -141,4 +117,3 @@ module_exit(ad7879_i2c_exit);
 MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
 MODULE_DESCRIPTION("AD7879(-1) touchscreen I2C bus driver");
 MODULE_LICENSE("GPL");
-MODULE_ALIAS("i2c:ad7879");
diff --git a/drivers/input/touchscreen/ad7879-spi.c b/drivers/input/touchscreen/ad7879-spi.c
index b1643c8fa7c9..9b2e1c2b1971 100644
--- a/drivers/input/touchscreen/ad7879-spi.c
+++ b/drivers/input/touchscreen/ad7879-spi.c
@@ -22,30 +22,6 @@
 #define AD7879_WRITECMD(reg) (AD7879_CMD(reg))
 #define AD7879_READCMD(reg)  (AD7879_CMD(reg) | AD7879_CMD_READ)
 
-#ifdef CONFIG_PM_SLEEP
-static int ad7879_spi_suspend(struct device *dev)
-{
-	struct spi_device *spi = to_spi_device(dev);
-	struct ad7879 *ts = spi_get_drvdata(spi);
-
-	ad7879_suspend(ts);
-
-	return 0;
-}
-
-static int ad7879_spi_resume(struct device *dev)
-{
-	struct spi_device *spi = to_spi_device(dev);
-	struct ad7879 *ts = spi_get_drvdata(spi);
-
-	ad7879_resume(ts);
-
-	return 0;
-}
-#endif
-
-static SIMPLE_DEV_PM_OPS(ad7879_spi_pm, ad7879_spi_suspend, ad7879_spi_resume);
-
 /*
  * ad7879_read/write are only used for initial setup and for sysfs controls.
  * The main traffic is done in ad7879_collect().
@@ -174,9 +150,8 @@ static int __devexit ad7879_spi_remove(struct spi_device *spi)
 static struct spi_driver ad7879_spi_driver = {
 	.driver = {
 		.name	= "ad7879",
-		.bus	= &spi_bus_type,
 		.owner	= THIS_MODULE,
-		.pm	= &ad7879_spi_pm,
+		.pm	= &ad7879_pm_ops,
 	},
 	.probe		= ad7879_spi_probe,
 	.remove		= __devexit_p(ad7879_spi_remove),
diff --git a/drivers/input/touchscreen/ad7879.c b/drivers/input/touchscreen/ad7879.c
index 3b2e9ed2aeec..e2482b40da51 100644
--- a/drivers/input/touchscreen/ad7879.c
+++ b/drivers/input/touchscreen/ad7879.c
@@ -281,8 +281,11 @@ static void ad7879_close(struct input_dev* input)
 		__ad7879_disable(ts);
 }
 
-void ad7879_suspend(struct ad7879 *ts)
+#ifdef CONFIG_PM_SLEEP
+static int ad7879_suspend(struct device *dev)
 {
+	struct ad7879 *ts = dev_get_drvdata(dev);
+
 	mutex_lock(&ts->input->mutex);
 
 	if (!ts->suspended && !ts->disabled && ts->input->users)
@@ -291,11 +294,14 @@ void ad7879_suspend(struct ad7879 *ts)
 	ts->suspended = true;
 
 	mutex_unlock(&ts->input->mutex);
+
+	return 0;
 }
-EXPORT_SYMBOL(ad7879_suspend);
 
-void ad7879_resume(struct ad7879 *ts)
+static int ad7879_resume(struct device *dev)
 {
+	struct ad7879 *ts = dev_get_drvdata(dev);
+
 	mutex_lock(&ts->input->mutex);
 
 	if (ts->suspended && !ts->disabled && ts->input->users)
@@ -304,8 +310,13 @@ void ad7879_resume(struct ad7879 *ts)
 	ts->suspended = false;
 
 	mutex_unlock(&ts->input->mutex);
+
+	return 0;
 }
-EXPORT_SYMBOL(ad7879_resume);
+#endif
+
+SIMPLE_DEV_PM_OPS(ad7879_pm_ops, ad7879_suspend, ad7879_resume);
+EXPORT_SYMBOL(ad7879_pm_ops);
 
 static void ad7879_toggle(struct ad7879 *ts, bool disable)
 {
@@ -340,10 +351,10 @@ static ssize_t ad7879_disable_store(struct device *dev,
 				     const char *buf, size_t count)
 {
 	struct ad7879 *ts = dev_get_drvdata(dev);
-	unsigned long val;
+	unsigned int val;
 	int error;
 
-	error = strict_strtoul(buf, 10, &val);
+	error = kstrtouint(buf, 10, &val);
 	if (error)
 		return error;
 
diff --git a/drivers/input/touchscreen/ad7879.h b/drivers/input/touchscreen/ad7879.h
index 6b45a27236c7..6fd13c48d373 100644
--- a/drivers/input/touchscreen/ad7879.h
+++ b/drivers/input/touchscreen/ad7879.h
@@ -21,8 +21,8 @@ struct ad7879_bus_ops {
 	int (*write)(struct device *dev, u8 reg, u16 val);
 };
 
-void ad7879_suspend(struct ad7879 *);
-void ad7879_resume(struct ad7879 *);
+extern const struct dev_pm_ops ad7879_pm_ops;
+
 struct ad7879 *ad7879_probe(struct device *dev, u8 devid, unsigned irq,
 			    const struct ad7879_bus_ops *bops);
 void ad7879_remove(struct ad7879 *);
diff --git a/drivers/input/touchscreen/ads7846.c b/drivers/input/touchscreen/ads7846.c
index de31ec6fe9e4..23fd90185659 100644
--- a/drivers/input/touchscreen/ads7846.c
+++ b/drivers/input/touchscreen/ads7846.c
@@ -602,10 +602,12 @@ static ssize_t ads7846_disable_store(struct device *dev,
 				     const char *buf, size_t count)
 {
 	struct ads7846 *ts = dev_get_drvdata(dev);
-	unsigned long i;
+	unsigned int i;
+	int err;
 
-	if (strict_strtoul(buf, 10, &i))
-		return -EINVAL;
+	err = kstrtouint(buf, 10, &i);
+	if (err)
+		return err;
 
 	if (i)
 		ads7846_disable(ts);
@@ -1424,7 +1426,6 @@ static int __devexit ads7846_remove(struct spi_device *spi)
 static struct spi_driver ads7846_driver = {
 	.driver = {
 		.name	= "ads7846",
-		.bus	= &spi_bus_type,
 		.owner	= THIS_MODULE,
 		.pm	= &ads7846_pm,
 	},
diff --git a/drivers/input/touchscreen/atmel-wm97xx.c b/drivers/input/touchscreen/atmel-wm97xx.c
index 8034cbb20f74..d016cb26d125 100644
--- a/drivers/input/touchscreen/atmel-wm97xx.c
+++ b/drivers/input/touchscreen/atmel-wm97xx.c
@@ -429,18 +429,7 @@ static struct platform_driver atmel_wm97xx_driver = {
 	.suspend	= atmel_wm97xx_suspend,
 	.resume		= atmel_wm97xx_resume,
 };
-
-static int __init atmel_wm97xx_init(void)
-{
-	return platform_driver_probe(&atmel_wm97xx_driver, atmel_wm97xx_probe);
-}
-module_init(atmel_wm97xx_init);
-
-static void __exit atmel_wm97xx_exit(void)
-{
-	platform_driver_unregister(&atmel_wm97xx_driver);
-}
-module_exit(atmel_wm97xx_exit);
+module_platform_driver(atmel_wm97xx_driver);
 
 MODULE_AUTHOR("Hans-Christian Egtvedt <egtvedt@samfundet.no>");
 MODULE_DESCRIPTION("wm97xx continuous touch driver for Atmel AT91 and AVR32");
diff --git a/drivers/input/touchscreen/atmel_tsadcc.c b/drivers/input/touchscreen/atmel_tsadcc.c
index 122a87883659..201b2d2ec1b3 100644
--- a/drivers/input/touchscreen/atmel_tsadcc.c
+++ b/drivers/input/touchscreen/atmel_tsadcc.c
@@ -351,20 +351,7 @@ static struct platform_driver atmel_tsadcc_driver = {
 		.name	= "atmel_tsadcc",
 	},
 };
-
-static int __init atmel_tsadcc_init(void)
-{
-	return platform_driver_register(&atmel_tsadcc_driver);
-}
-
-static void __exit atmel_tsadcc_exit(void)
-{
-	platform_driver_unregister(&atmel_tsadcc_driver);
-}
-
-module_init(atmel_tsadcc_init);
-module_exit(atmel_tsadcc_exit);
-
+module_platform_driver(atmel_tsadcc_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Atmel TouchScreen Driver");
diff --git a/drivers/input/touchscreen/auo-pixcir-ts.c b/drivers/input/touchscreen/auo-pixcir-ts.c
new file mode 100644
index 000000000000..94fb9fbb08a9
--- /dev/null
+++ b/drivers/input/touchscreen/auo-pixcir-ts.c
@@ -0,0 +1,652 @@
+/*
+ * Driver for AUO in-cell touchscreens
+ *
+ * Copyright (c) 2011 Heiko Stuebner <heiko@sntech.de>
+ *
+ * loosely based on auo_touch.c from Dell Streak vendor-kernel
+ *
+ * Copyright (c) 2008 QUALCOMM Incorporated.
+ * Copyright (c) 2008 QUALCOMM USA, INC.
+ *
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <linux/input.h>
+#include <linux/jiffies.h>
+#include <linux/i2c.h>
+#include <linux/mutex.h>
+#include <linux/delay.h>
+#include <linux/gpio.h>
+#include <linux/input/auo-pixcir-ts.h>
+
+/*
+ * Coordinate calculation:
+ * X1 = X1_LSB + X1_MSB*256
+ * Y1 = Y1_LSB + Y1_MSB*256
+ * X2 = X2_LSB + X2_MSB*256
+ * Y2 = Y2_LSB + Y2_MSB*256
+ */
+#define AUO_PIXCIR_REG_X1_LSB		0x00
+#define AUO_PIXCIR_REG_X1_MSB		0x01
+#define AUO_PIXCIR_REG_Y1_LSB		0x02
+#define AUO_PIXCIR_REG_Y1_MSB		0x03
+#define AUO_PIXCIR_REG_X2_LSB		0x04
+#define AUO_PIXCIR_REG_X2_MSB		0x05
+#define AUO_PIXCIR_REG_Y2_LSB		0x06
+#define AUO_PIXCIR_REG_Y2_MSB		0x07
+
+#define AUO_PIXCIR_REG_STRENGTH		0x0d
+#define AUO_PIXCIR_REG_STRENGTH_X1_LSB	0x0e
+#define AUO_PIXCIR_REG_STRENGTH_X1_MSB	0x0f
+
+#define AUO_PIXCIR_REG_RAW_DATA_X	0x2b
+#define AUO_PIXCIR_REG_RAW_DATA_Y	0x4f
+
+#define AUO_PIXCIR_REG_X_SENSITIVITY	0x6f
+#define AUO_PIXCIR_REG_Y_SENSITIVITY	0x70
+#define AUO_PIXCIR_REG_INT_SETTING	0x71
+#define AUO_PIXCIR_REG_INT_WIDTH	0x72
+#define AUO_PIXCIR_REG_POWER_MODE	0x73
+
+#define AUO_PIXCIR_REG_VERSION		0x77
+#define AUO_PIXCIR_REG_CALIBRATE	0x78
+
+#define AUO_PIXCIR_REG_TOUCHAREA_X1	0x1e
+#define AUO_PIXCIR_REG_TOUCHAREA_Y1	0x1f
+#define AUO_PIXCIR_REG_TOUCHAREA_X2	0x20
+#define AUO_PIXCIR_REG_TOUCHAREA_Y2	0x21
+
+#define AUO_PIXCIR_REG_EEPROM_CALIB_X	0x42
+#define AUO_PIXCIR_REG_EEPROM_CALIB_Y	0xad
+
+#define AUO_PIXCIR_INT_TPNUM_MASK	0xe0
+#define AUO_PIXCIR_INT_TPNUM_SHIFT	5
+#define AUO_PIXCIR_INT_RELEASE		(1 << 4)
+#define AUO_PIXCIR_INT_ENABLE		(1 << 3)
+#define AUO_PIXCIR_INT_POL_HIGH		(1 << 2)
+#define AUO_PIXCIR_INT_MODE_MASK	0x03
+
+/*
+ * Power modes:
+ * active:	scan speed 60Hz
+ * sleep:	scan speed 10Hz can be auto-activated, wakeup on 1st touch
+ * deep sleep:	scan speed 1Hz can only be entered or left manually.
+ */
+#define AUO_PIXCIR_POWER_ACTIVE		0x00
+#define AUO_PIXCIR_POWER_SLEEP		0x01
+#define AUO_PIXCIR_POWER_DEEP_SLEEP	0x02
+#define AUO_PIXCIR_POWER_MASK		0x03
+
+#define AUO_PIXCIR_POWER_ALLOW_SLEEP	(1 << 2)
+#define AUO_PIXCIR_POWER_IDLE_TIME(ms)	((ms & 0xf) << 4)
+
+#define AUO_PIXCIR_CALIBRATE		0x03
+
+#define AUO_PIXCIR_EEPROM_CALIB_X_LEN	62
+#define AUO_PIXCIR_EEPROM_CALIB_Y_LEN	36
+
+#define AUO_PIXCIR_RAW_DATA_X_LEN	18
+#define AUO_PIXCIR_RAW_DATA_Y_LEN	11
+
+#define AUO_PIXCIR_STRENGTH_ENABLE	(1 << 0)
+
+/* Touchscreen absolute values */
+#define AUO_PIXCIR_REPORT_POINTS	2
+#define AUO_PIXCIR_MAX_AREA		0xff
+#define AUO_PIXCIR_PENUP_TIMEOUT_MS	10
+
+struct auo_pixcir_ts {
+	struct i2c_client	*client;
+	struct input_dev	*input;
+	char			phys[32];
+
+	/* special handling for touch_indicate interupt mode */
+	bool			touch_ind_mode;
+
+	wait_queue_head_t	wait;
+	bool			stopped;
+};
+
+struct auo_point_t {
+	int	coord_x;
+	int	coord_y;
+	int	area_major;
+	int	area_minor;
+	int	orientation;
+};
+
+static int auo_pixcir_collect_data(struct auo_pixcir_ts *ts,
+				   struct auo_point_t *point)
+{
+	struct i2c_client *client = ts->client;
+	const struct auo_pixcir_ts_platdata *pdata = client->dev.platform_data;
+	uint8_t raw_coord[8];
+	uint8_t raw_area[4];
+	int i, ret;
+
+	/* touch coordinates */
+	ret = i2c_smbus_read_i2c_block_data(client, AUO_PIXCIR_REG_X1_LSB,
+					    8, raw_coord);
+	if (ret < 0) {
+		dev_err(&client->dev, "failed to read coordinate, %d\n", ret);
+		return ret;
+	}
+
+	/* touch area */
+	ret = i2c_smbus_read_i2c_block_data(client, AUO_PIXCIR_REG_TOUCHAREA_X1,
+					    4, raw_area);
+	if (ret < 0) {
+		dev_err(&client->dev, "could not read touch area, %d\n", ret);
+		return ret;
+	}
+
+	for (i = 0; i < AUO_PIXCIR_REPORT_POINTS; i++) {
+		point[i].coord_x =
+			raw_coord[4 * i + 1] << 8 | raw_coord[4 * i];
+		point[i].coord_y =
+			raw_coord[4 * i + 3] << 8 | raw_coord[4 * i + 2];
+
+		if (point[i].coord_x > pdata->x_max ||
+		    point[i].coord_y > pdata->y_max) {
+			dev_warn(&client->dev, "coordinates (%d,%d) invalid\n",
+				point[i].coord_x, point[i].coord_y);
+			point[i].coord_x = point[i].coord_y = 0;
+		}
+
+		/* determine touch major, minor and orientation */
+		point[i].area_major = max(raw_area[2 * i], raw_area[2 * i + 1]);
+		point[i].area_minor = min(raw_area[2 * i], raw_area[2 * i + 1]);
+		point[i].orientation = raw_area[2 * i] > raw_area[2 * i + 1];
+	}
+
+	return 0;
+}
+
+static irqreturn_t auo_pixcir_interrupt(int irq, void *dev_id)
+{
+	struct auo_pixcir_ts *ts = dev_id;
+	struct i2c_client *client = ts->client;
+	const struct auo_pixcir_ts_platdata *pdata = client->dev.platform_data;
+	struct auo_point_t point[AUO_PIXCIR_REPORT_POINTS];
+	int i;
+	int ret;
+	int fingers = 0;
+	int abs = -1;
+
+	while (!ts->stopped) {
+
+		/* check for up event in touch touch_ind_mode */
+		if (ts->touch_ind_mode) {
+			if (gpio_get_value(pdata->gpio_int) == 0) {
+				input_mt_sync(ts->input);
+				input_report_key(ts->input, BTN_TOUCH, 0);
+				input_sync(ts->input);
+				break;
+			}
+		}
+
+		ret = auo_pixcir_collect_data(ts, point);
+		if (ret < 0) {
+			/* we want to loop only in touch_ind_mode */
+			if (!ts->touch_ind_mode)
+				break;
+
+			wait_event_timeout(ts->wait, ts->stopped,
+				msecs_to_jiffies(AUO_PIXCIR_PENUP_TIMEOUT_MS));
+			continue;
+		}
+
+		for (i = 0; i < AUO_PIXCIR_REPORT_POINTS; i++) {
+			if (point[i].coord_x > 0 || point[i].coord_y > 0) {
+				input_report_abs(ts->input, ABS_MT_POSITION_X,
+						 point[i].coord_x);
+				input_report_abs(ts->input, ABS_MT_POSITION_Y,
+						 point[i].coord_y);
+				input_report_abs(ts->input, ABS_MT_TOUCH_MAJOR,
+						 point[i].area_major);
+				input_report_abs(ts->input, ABS_MT_TOUCH_MINOR,
+						 point[i].area_minor);
+				input_report_abs(ts->input, ABS_MT_ORIENTATION,
+						 point[i].orientation);
+				input_mt_sync(ts->input);
+
+				/* use first finger as source for singletouch */
+				if (fingers == 0)
+					abs = i;
+
+				/* number of touch points could also be queried
+				 * via i2c but would require an additional call
+				 */
+				fingers++;
+			}
+		}
+
+		input_report_key(ts->input, BTN_TOUCH, fingers > 0);
+
+		if (abs > -1) {
+			input_report_abs(ts->input, ABS_X, point[abs].coord_x);
+			input_report_abs(ts->input, ABS_Y, point[abs].coord_y);
+		}
+
+		input_sync(ts->input);
+
+		/* we want to loop only in touch_ind_mode */
+		if (!ts->touch_ind_mode)
+			break;
+
+		wait_event_timeout(ts->wait, ts->stopped,
+				 msecs_to_jiffies(AUO_PIXCIR_PENUP_TIMEOUT_MS));
+	}
+
+	return IRQ_HANDLED;
+}
+
+/*
+ * Set the power mode of the device.
+ * Valid modes are
+ * - AUO_PIXCIR_POWER_ACTIVE
+ * - AUO_PIXCIR_POWER_SLEEP - automatically left on first touch
+ * - AUO_PIXCIR_POWER_DEEP_SLEEP
+ */
+static int auo_pixcir_power_mode(struct auo_pixcir_ts *ts, int mode)
+{
+	struct i2c_client *client = ts->client;
+	int ret;
+
+	ret = i2c_smbus_read_byte_data(client, AUO_PIXCIR_REG_POWER_MODE);
+	if (ret < 0) {
+		dev_err(&client->dev, "unable to read reg %Xh, %d\n",
+			AUO_PIXCIR_REG_POWER_MODE, ret);
+		return ret;
+	}
+
+	ret &= ~AUO_PIXCIR_POWER_MASK;
+	ret |= mode;
+
+	ret = i2c_smbus_write_byte_data(client, AUO_PIXCIR_REG_POWER_MODE, ret);
+	if (ret) {
+		dev_err(&client->dev, "unable to write reg %Xh, %d\n",
+			AUO_PIXCIR_REG_POWER_MODE, ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static __devinit int auo_pixcir_int_config(struct auo_pixcir_ts *ts,
+					   int int_setting)
+{
+	struct i2c_client *client = ts->client;
+	struct auo_pixcir_ts_platdata *pdata = client->dev.platform_data;
+	int ret;
+
+	ret = i2c_smbus_read_byte_data(client, AUO_PIXCIR_REG_INT_SETTING);
+	if (ret < 0) {
+		dev_err(&client->dev, "unable to read reg %Xh, %d\n",
+			AUO_PIXCIR_REG_INT_SETTING, ret);
+		return ret;
+	}
+
+	ret &= ~AUO_PIXCIR_INT_MODE_MASK;
+	ret |= int_setting;
+	ret |= AUO_PIXCIR_INT_POL_HIGH; /* always use high for interrupts */
+
+	ret = i2c_smbus_write_byte_data(client, AUO_PIXCIR_REG_INT_SETTING,
+					ret);
+	if (ret < 0) {
+		dev_err(&client->dev, "unable to write reg %Xh, %d\n",
+			AUO_PIXCIR_REG_INT_SETTING, ret);
+		return ret;
+	}
+
+	ts->touch_ind_mode = pdata->int_setting == AUO_PIXCIR_INT_TOUCH_IND;
+
+	return 0;
+}
+
+/* control the generation of interrupts on the device side */
+static int auo_pixcir_int_toggle(struct auo_pixcir_ts *ts, bool enable)
+{
+	struct i2c_client *client = ts->client;
+	int ret;
+
+	ret = i2c_smbus_read_byte_data(client, AUO_PIXCIR_REG_INT_SETTING);
+	if (ret < 0) {
+		dev_err(&client->dev, "unable to read reg %Xh, %d\n",
+			AUO_PIXCIR_REG_INT_SETTING, ret);
+		return ret;
+	}
+
+	if (enable)
+		ret |= AUO_PIXCIR_INT_ENABLE;
+	else
+		ret &= ~AUO_PIXCIR_INT_ENABLE;
+
+	ret = i2c_smbus_write_byte_data(client, AUO_PIXCIR_REG_INT_SETTING,
+					ret);
+	if (ret < 0) {
+		dev_err(&client->dev, "unable to write reg %Xh, %d\n",
+			AUO_PIXCIR_REG_INT_SETTING, ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int auo_pixcir_start(struct auo_pixcir_ts *ts)
+{
+	struct i2c_client *client = ts->client;
+	int ret;
+
+	ret = auo_pixcir_power_mode(ts, AUO_PIXCIR_POWER_ACTIVE);
+	if (ret < 0) {
+		dev_err(&client->dev, "could not set power mode, %d\n",
+			ret);
+		return ret;
+	}
+
+	ts->stopped = false;
+	mb();
+	enable_irq(client->irq);
+
+	ret = auo_pixcir_int_toggle(ts, 1);
+	if (ret < 0) {
+		dev_err(&client->dev, "could not enable interrupt, %d\n",
+			ret);
+		disable_irq(client->irq);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int auo_pixcir_stop(struct auo_pixcir_ts *ts)
+{
+	struct i2c_client *client = ts->client;
+	int ret;
+
+	ret = auo_pixcir_int_toggle(ts, 0);
+	if (ret < 0) {
+		dev_err(&client->dev, "could not disable interrupt, %d\n",
+			ret);
+		return ret;
+	}
+
+	/* disable receiving of interrupts */
+	disable_irq(client->irq);
+	ts->stopped = true;
+	mb();
+	wake_up(&ts->wait);
+
+	return auo_pixcir_power_mode(ts, AUO_PIXCIR_POWER_DEEP_SLEEP);
+}
+
+static int auo_pixcir_input_open(struct input_dev *dev)
+{
+	struct auo_pixcir_ts *ts = input_get_drvdata(dev);
+	int ret;
+
+	ret = auo_pixcir_start(ts);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+static void auo_pixcir_input_close(struct input_dev *dev)
+{
+	struct auo_pixcir_ts *ts = input_get_drvdata(dev);
+
+	auo_pixcir_stop(ts);
+
+	return;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int auo_pixcir_suspend(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct auo_pixcir_ts *ts = i2c_get_clientdata(client);
+	struct input_dev *input = ts->input;
+	int ret = 0;
+
+	mutex_lock(&input->mutex);
+
+	/* when configured as wakeup source, device should always wake system
+	 * therefore start device if necessary
+	 */
+	if (device_may_wakeup(&client->dev)) {
+		/* need to start device if not open, to be wakeup source */
+		if (!input->users) {
+			ret = auo_pixcir_start(ts);
+			if (ret)
+				goto unlock;
+		}
+
+		enable_irq_wake(client->irq);
+		ret = auo_pixcir_power_mode(ts, AUO_PIXCIR_POWER_SLEEP);
+	} else if (input->users) {
+		ret = auo_pixcir_stop(ts);
+	}
+
+unlock:
+	mutex_unlock(&input->mutex);
+
+	return ret;
+}
+
+static int auo_pixcir_resume(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+	struct auo_pixcir_ts *ts = i2c_get_clientdata(client);
+	struct input_dev *input = ts->input;
+	int ret = 0;
+
+	mutex_lock(&input->mutex);
+
+	if (device_may_wakeup(&client->dev)) {
+		disable_irq_wake(client->irq);
+
+		/* need to stop device if it was not open on suspend */
+		if (!input->users) {
+			ret = auo_pixcir_stop(ts);
+			if (ret)
+				goto unlock;
+		}
+
+		/* device wakes automatically from SLEEP */
+	} else if (input->users) {
+		ret = auo_pixcir_start(ts);
+	}
+
+unlock:
+	mutex_unlock(&input->mutex);
+
+	return ret;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(auo_pixcir_pm_ops, auo_pixcir_suspend,
+			 auo_pixcir_resume);
+
+static int __devinit auo_pixcir_probe(struct i2c_client *client,
+				      const struct i2c_device_id *id)
+{
+	const struct auo_pixcir_ts_platdata *pdata = client->dev.platform_data;
+	struct auo_pixcir_ts *ts;
+	struct input_dev *input_dev;
+	int ret;
+
+	if (!pdata)
+		return -EINVAL;
+
+	ts = kzalloc(sizeof(struct auo_pixcir_ts), GFP_KERNEL);
+	if (!ts)
+		return -ENOMEM;
+
+	ret = gpio_request(pdata->gpio_int, "auo_pixcir_ts_int");
+	if (ret) {
+		dev_err(&client->dev, "request of gpio %d failed, %d\n",
+			pdata->gpio_int, ret);
+		goto err_gpio_int;
+	}
+
+	if (pdata->init_hw)
+		pdata->init_hw(client);
+
+	ts->client = client;
+	ts->touch_ind_mode = 0;
+	init_waitqueue_head(&ts->wait);
+
+	snprintf(ts->phys, sizeof(ts->phys),
+		 "%s/input0", dev_name(&client->dev));
+
+	input_dev = input_allocate_device();
+	if (!input_dev) {
+		dev_err(&client->dev, "could not allocate input device\n");
+		goto err_input_alloc;
+	}
+
+	ts->input = input_dev;
+
+	input_dev->name = "AUO-Pixcir touchscreen";
+	input_dev->phys = ts->phys;
+	input_dev->id.bustype = BUS_I2C;
+	input_dev->dev.parent = &client->dev;
+
+	input_dev->open = auo_pixcir_input_open;
+	input_dev->close = auo_pixcir_input_close;
+
+	__set_bit(EV_ABS, input_dev->evbit);
+	__set_bit(EV_KEY, input_dev->evbit);
+
+	__set_bit(BTN_TOUCH, input_dev->keybit);
+
+	/* For single touch */
+	input_set_abs_params(input_dev, ABS_X, 0, pdata->x_max, 0, 0);
+	input_set_abs_params(input_dev, ABS_Y, 0, pdata->y_max, 0, 0);
+
+	/* For multi touch */
+	input_set_abs_params(input_dev, ABS_MT_POSITION_X, 0,
+			     pdata->x_max, 0, 0);
+	input_set_abs_params(input_dev, ABS_MT_POSITION_Y, 0,
+			     pdata->y_max, 0, 0);
+	input_set_abs_params(input_dev, ABS_MT_TOUCH_MAJOR, 0,
+			     AUO_PIXCIR_MAX_AREA, 0, 0);
+	input_set_abs_params(input_dev, ABS_MT_TOUCH_MINOR, 0,
+			     AUO_PIXCIR_MAX_AREA, 0, 0);
+	input_set_abs_params(input_dev, ABS_MT_ORIENTATION, 0, 1, 0, 0);
+
+	ret = i2c_smbus_read_byte_data(client, AUO_PIXCIR_REG_VERSION);
+	if (ret < 0)
+		goto err_fw_vers;
+	dev_info(&client->dev, "firmware version 0x%X\n", ret);
+
+	ret = auo_pixcir_int_config(ts, pdata->int_setting);
+	if (ret)
+		goto err_fw_vers;
+
+	input_set_drvdata(ts->input, ts);
+	ts->stopped = true;
+
+	ret = request_threaded_irq(client->irq, NULL, auo_pixcir_interrupt,
+				   IRQF_TRIGGER_RISING | IRQF_ONESHOT,
+				   input_dev->name, ts);
+	if (ret) {
+		dev_err(&client->dev, "irq %d requested failed\n", client->irq);
+		goto err_fw_vers;
+	}
+
+	/* stop device and put it into deep sleep until it is opened */
+	ret = auo_pixcir_stop(ts);
+	if (ret < 0)
+		goto err_input_register;
+
+	ret = input_register_device(input_dev);
+	if (ret) {
+		dev_err(&client->dev, "could not register input device\n");
+		goto err_input_register;
+	}
+
+	i2c_set_clientdata(client, ts);
+
+	return 0;
+
+err_input_register:
+	free_irq(client->irq, ts);
+err_fw_vers:
+	input_free_device(input_dev);
+err_input_alloc:
+	if (pdata->exit_hw)
+		pdata->exit_hw(client);
+	gpio_free(pdata->gpio_int);
+err_gpio_int:
+	kfree(ts);
+
+	return ret;
+}
+
+static int __devexit auo_pixcir_remove(struct i2c_client *client)
+{
+	struct auo_pixcir_ts *ts = i2c_get_clientdata(client);
+	const struct auo_pixcir_ts_platdata *pdata = client->dev.platform_data;
+
+	free_irq(client->irq, ts);
+
+	input_unregister_device(ts->input);
+
+	if (pdata->exit_hw)
+		pdata->exit_hw(client);
+
+	gpio_free(pdata->gpio_int);
+
+	kfree(ts);
+
+	return 0;
+}
+
+static const struct i2c_device_id auo_pixcir_idtable[] = {
+	{ "auo_pixcir_ts", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, auo_pixcir_idtable);
+
+static struct i2c_driver auo_pixcir_driver = {
+	.driver = {
+		.owner	= THIS_MODULE,
+		.name	= "auo_pixcir_ts",
+		.pm	= &auo_pixcir_pm_ops,
+	},
+	.probe		= auo_pixcir_probe,
+	.remove		= __devexit_p(auo_pixcir_remove),
+	.id_table	= auo_pixcir_idtable,
+};
+
+static int __init auo_pixcir_init(void)
+{
+	return i2c_add_driver(&auo_pixcir_driver);
+}
+module_init(auo_pixcir_init);
+
+static void __exit auo_pixcir_exit(void)
+{
+	i2c_del_driver(&auo_pixcir_driver);
+}
+module_exit(auo_pixcir_exit);
+
+MODULE_DESCRIPTION("AUO-PIXCIR touchscreen driver");
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Heiko Stuebner <heiko@sntech.de>");
diff --git a/drivers/input/touchscreen/da9034-ts.c b/drivers/input/touchscreen/da9034-ts.c
index 2b72a5923c16..36b65cf10d7f 100644
--- a/drivers/input/touchscreen/da9034-ts.c
+++ b/drivers/input/touchscreen/da9034-ts.c
@@ -379,18 +379,7 @@ static struct platform_driver da9034_touch_driver = {
 	.probe		= da9034_touch_probe,
 	.remove		= __devexit_p(da9034_touch_remove),
 };
-
-static int __init da9034_touch_init(void)
-{
-	return platform_driver_register(&da9034_touch_driver);
-}
-module_init(da9034_touch_init);
-
-static void __exit da9034_touch_exit(void)
-{
-	platform_driver_unregister(&da9034_touch_driver);
-}
-module_exit(da9034_touch_exit);
+module_platform_driver(da9034_touch_driver);
 
 MODULE_DESCRIPTION("Touchscreen driver for Dialog Semiconductor DA9034");
 MODULE_AUTHOR("Eric Miao <eric.miao@marvell.com>, Bin Yang <bin.yang@marvell.com>");
diff --git a/drivers/input/touchscreen/egalax_ts.c b/drivers/input/touchscreen/egalax_ts.c
new file mode 100644
index 000000000000..eadcc2e83c77
--- /dev/null
+++ b/drivers/input/touchscreen/egalax_ts.c
@@ -0,0 +1,303 @@
+/*
+ * Driver for EETI eGalax Multiple Touch Controller
+ *
+ * Copyright (C) 2011 Freescale Semiconductor, Inc.
+ *
+ * based on max11801_ts.c
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+/* EETI eGalax serial touch screen controller is a I2C based multiple
+ * touch screen controller, it supports 5 point multiple touch. */
+
+/* TODO:
+  - auto idle mode support
+*/
+
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/input.h>
+#include <linux/irq.h>
+#include <linux/gpio.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
+#include <linux/bitops.h>
+#include <linux/input/mt.h>
+
+/*
+ * Mouse Mode: some panel may configure the controller to mouse mode,
+ * which can only report one point at a given time.
+ * This driver will ignore events in this mode.
+ */
+#define REPORT_MODE_MOUSE		0x1
+/*
+ * Vendor Mode: this mode is used to transfer some vendor specific
+ * messages.
+ * This driver will ignore events in this mode.
+ */
+#define REPORT_MODE_VENDOR		0x3
+/* Multiple Touch Mode */
+#define REPORT_MODE_MTTOUCH		0x4
+
+#define MAX_SUPPORT_POINTS		5
+
+#define EVENT_VALID_OFFSET	7
+#define EVENT_VALID_MASK	(0x1 << EVENT_VALID_OFFSET)
+#define EVENT_ID_OFFSET		2
+#define EVENT_ID_MASK		(0xf << EVENT_ID_OFFSET)
+#define EVENT_IN_RANGE		(0x1 << 1)
+#define EVENT_DOWN_UP		(0X1 << 0)
+
+#define MAX_I2C_DATA_LEN	10
+
+#define EGALAX_MAX_X	32760
+#define EGALAX_MAX_Y	32760
+#define EGALAX_MAX_TRIES 100
+
+struct egalax_ts {
+	struct i2c_client		*client;
+	struct input_dev		*input_dev;
+};
+
+static irqreturn_t egalax_ts_interrupt(int irq, void *dev_id)
+{
+	struct egalax_ts *ts = dev_id;
+	struct input_dev *input_dev = ts->input_dev;
+	struct i2c_client *client = ts->client;
+	u8 buf[MAX_I2C_DATA_LEN];
+	int id, ret, x, y, z;
+	int tries = 0;
+	bool down, valid;
+	u8 state;
+
+	do {
+		ret = i2c_master_recv(client, buf, MAX_I2C_DATA_LEN);
+	} while (ret == -EAGAIN && tries++ < EGALAX_MAX_TRIES);
+
+	if (ret < 0)
+		return IRQ_HANDLED;
+
+	if (buf[0] != REPORT_MODE_MTTOUCH) {
+		/* ignore mouse events and vendor events */
+		return IRQ_HANDLED;
+	}
+
+	state = buf[1];
+	x = (buf[3] << 8) | buf[2];
+	y = (buf[5] << 8) | buf[4];
+	z = (buf[7] << 8) | buf[6];
+
+	valid = state & EVENT_VALID_MASK;
+	id = (state & EVENT_ID_MASK) >> EVENT_ID_OFFSET;
+	down = state & EVENT_DOWN_UP;
+
+	if (!valid || id > MAX_SUPPORT_POINTS) {
+		dev_dbg(&client->dev, "point invalid\n");
+		return IRQ_HANDLED;
+	}
+
+	input_mt_slot(input_dev, id);
+	input_mt_report_slot_state(input_dev, MT_TOOL_FINGER, down);
+
+	dev_dbg(&client->dev, "%s id:%d x:%d y:%d z:%d",
+		down ? "down" : "up", id, x, y, z);
+
+	if (down) {
+		input_report_abs(input_dev, ABS_MT_POSITION_X, x);
+		input_report_abs(input_dev, ABS_MT_POSITION_Y, y);
+		input_report_abs(input_dev, ABS_MT_PRESSURE, z);
+	}
+
+	input_mt_report_pointer_emulation(input_dev, true);
+	input_sync(input_dev);
+
+	return IRQ_HANDLED;
+}
+
+/* wake up controller by an falling edge of interrupt gpio.  */
+static int egalax_wake_up_device(struct i2c_client *client)
+{
+	int gpio = irq_to_gpio(client->irq);
+	int ret;
+
+	ret = gpio_request(gpio, "egalax_irq");
+	if (ret < 0) {
+		dev_err(&client->dev,
+			"request gpio failed, cannot wake up controller: %d\n",
+			ret);
+		return ret;
+	}
+
+	/* wake up controller via an falling edge on IRQ gpio. */
+	gpio_direction_output(gpio, 0);
+	gpio_set_value(gpio, 1);
+
+	/* controller should be waken up, return irq.  */
+	gpio_direction_input(gpio);
+	gpio_free(gpio);
+
+	return 0;
+}
+
+static int __devinit egalax_firmware_version(struct i2c_client *client)
+{
+	static const u8 cmd[MAX_I2C_DATA_LEN] = { 0x03, 0x03, 0xa, 0x01, 0x41 };
+	int ret;
+
+	ret = i2c_master_send(client, cmd, MAX_I2C_DATA_LEN);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static int __devinit egalax_ts_probe(struct i2c_client *client,
+				       const struct i2c_device_id *id)
+{
+	struct egalax_ts *ts;
+	struct input_dev *input_dev;
+	int ret;
+	int error;
+
+	ts = kzalloc(sizeof(struct egalax_ts), GFP_KERNEL);
+	if (!ts) {
+		dev_err(&client->dev, "Failed to allocate memory\n");
+		return -ENOMEM;
+	}
+
+	input_dev = input_allocate_device();
+	if (!input_dev) {
+		dev_err(&client->dev, "Failed to allocate memory\n");
+		error = -ENOMEM;
+		goto err_free_ts;
+	}
+
+	ts->client = client;
+	ts->input_dev = input_dev;
+
+	/* controller may be in sleep, wake it up. */
+	egalax_wake_up_device(client);
+
+	ret = egalax_firmware_version(client);
+	if (ret < 0) {
+		dev_err(&client->dev, "Failed to read firmware version\n");
+		error = -EIO;
+		goto err_free_dev;
+	}
+
+	input_dev->name = "EETI eGalax Touch Screen";
+	input_dev->id.bustype = BUS_I2C;
+	input_dev->dev.parent = &client->dev;
+
+	__set_bit(EV_ABS, input_dev->evbit);
+	__set_bit(EV_KEY, input_dev->evbit);
+	__set_bit(BTN_TOUCH, input_dev->keybit);
+
+	input_set_abs_params(input_dev, ABS_X, 0, EGALAX_MAX_X, 0, 0);
+	input_set_abs_params(input_dev, ABS_Y, 0, EGALAX_MAX_Y, 0, 0);
+	input_set_abs_params(input_dev,
+			     ABS_MT_POSITION_X, 0, EGALAX_MAX_X, 0, 0);
+	input_set_abs_params(input_dev,
+			     ABS_MT_POSITION_X, 0, EGALAX_MAX_Y, 0, 0);
+	input_mt_init_slots(input_dev, MAX_SUPPORT_POINTS);
+
+	input_set_drvdata(input_dev, ts);
+
+	error = request_threaded_irq(client->irq, NULL, egalax_ts_interrupt,
+				     IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+				     "egalax_ts", ts);
+	if (error < 0) {
+		dev_err(&client->dev, "Failed to register interrupt\n");
+		goto err_free_dev;
+	}
+
+	error = input_register_device(ts->input_dev);
+	if (error)
+		goto err_free_irq;
+
+	i2c_set_clientdata(client, ts);
+	return 0;
+
+err_free_irq:
+	free_irq(client->irq, ts);
+err_free_dev:
+	input_free_device(input_dev);
+err_free_ts:
+	kfree(ts);
+
+	return error;
+}
+
+static __devexit int egalax_ts_remove(struct i2c_client *client)
+{
+	struct egalax_ts *ts = i2c_get_clientdata(client);
+
+	free_irq(client->irq, ts);
+
+	input_unregister_device(ts->input_dev);
+	kfree(ts);
+
+	return 0;
+}
+
+static const struct i2c_device_id egalax_ts_id[] = {
+	{ "egalax_ts", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, egalax_ts_id);
+
+#ifdef CONFIG_PM_SLEEP
+static int egalax_ts_suspend(struct device *dev)
+{
+	static const u8 suspend_cmd[MAX_I2C_DATA_LEN] = {
+		0x3, 0x6, 0xa, 0x3, 0x36, 0x3f, 0x2, 0, 0, 0
+	};
+	struct i2c_client *client = to_i2c_client(dev);
+	int ret;
+
+	ret = i2c_master_send(client, suspend_cmd, MAX_I2C_DATA_LEN);
+	return ret > 0 ? 0 : ret;
+}
+
+static int egalax_ts_resume(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+
+	return egalax_wake_up_device(client);
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(egalax_ts_pm_ops, egalax_ts_suspend, egalax_ts_resume);
+
+static struct i2c_driver egalax_ts_driver = {
+	.driver = {
+		.name	= "egalax_ts",
+		.owner	= THIS_MODULE,
+		.pm	= &egalax_ts_pm_ops,
+	},
+	.id_table	= egalax_ts_id,
+	.probe		= egalax_ts_probe,
+	.remove		= __devexit_p(egalax_ts_remove),
+};
+
+static int __init egalax_ts_init(void)
+{
+	return i2c_add_driver(&egalax_ts_driver);
+}
+
+static void __exit egalax_ts_exit(void)
+{
+	i2c_del_driver(&egalax_ts_driver);
+}
+
+module_init(egalax_ts_init);
+module_exit(egalax_ts_exit);
+
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_DESCRIPTION("Touchscreen driver for EETI eGalax touch controller");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/htcpen.c b/drivers/input/touchscreen/htcpen.c
index 62811de6f18f..81e338623944 100644
--- a/drivers/input/touchscreen/htcpen.c
+++ b/drivers/input/touchscreen/htcpen.c
@@ -47,12 +47,6 @@ static int invert_y;
 module_param(invert_y, bool, 0644);
 MODULE_PARM_DESC(invert_y, "If set, Y axis is inverted");
 
-static struct pnp_device_id pnp_ids[] = {
-	{ .id = "PNP0cc0" },
-	{ .id = "" }
-};
-MODULE_DEVICE_TABLE(pnp, pnp_ids);
-
 static irqreturn_t htcpen_interrupt(int irq, void *handle)
 {
 	struct input_dev *htcpen_dev = handle;
@@ -237,6 +231,7 @@ static struct dmi_system_id __initdata htcshift_dmi_table[] = {
 	},
 	{ }
 };
+MODULE_DEVICE_TABLE(dmi, htcshift_dmi_table);
 
 static int __init htcpen_isa_init(void)
 {
diff --git a/drivers/input/touchscreen/intel-mid-touch.c b/drivers/input/touchscreen/intel-mid-touch.c
index 327695268e06..3cd7a837f82b 100644
--- a/drivers/input/touchscreen/intel-mid-touch.c
+++ b/drivers/input/touchscreen/intel-mid-touch.c
@@ -664,18 +664,7 @@ static struct platform_driver mrstouch_driver = {
 	.probe		= mrstouch_probe,
 	.remove		= __devexit_p(mrstouch_remove),
 };
-
-static int __init mrstouch_init(void)
-{
-	return platform_driver_register(&mrstouch_driver);
-}
-module_init(mrstouch_init);
-
-static void __exit mrstouch_exit(void)
-{
-	platform_driver_unregister(&mrstouch_driver);
-}
-module_exit(mrstouch_exit);
+module_platform_driver(mrstouch_driver);
 
 MODULE_AUTHOR("Sreedhara Murthy. D.S, sreedhara.ds@intel.com");
 MODULE_DESCRIPTION("Intel Moorestown Resistive Touch Screen Driver");
diff --git a/drivers/input/touchscreen/jornada720_ts.c b/drivers/input/touchscreen/jornada720_ts.c
index 50076c2d59e2..c3848ad2325b 100644
--- a/drivers/input/touchscreen/jornada720_ts.c
+++ b/drivers/input/touchscreen/jornada720_ts.c
@@ -172,16 +172,4 @@ static struct platform_driver jornada720_ts_driver = {
 		.owner	= THIS_MODULE,
 	},
 };
-
-static int __init jornada720_ts_init(void)
-{
-	return platform_driver_register(&jornada720_ts_driver);
-}
-
-static void __exit jornada720_ts_exit(void)
-{
-	platform_driver_unregister(&jornada720_ts_driver);
-}
-
-module_init(jornada720_ts_init);
-module_exit(jornada720_ts_exit);
+module_platform_driver(jornada720_ts_driver);
diff --git a/drivers/input/touchscreen/lpc32xx_ts.c b/drivers/input/touchscreen/lpc32xx_ts.c
index 0a484ed5295c..afcd0691ec67 100644
--- a/drivers/input/touchscreen/lpc32xx_ts.c
+++ b/drivers/input/touchscreen/lpc32xx_ts.c
@@ -392,18 +392,7 @@ static struct platform_driver lpc32xx_ts_driver = {
 		.pm	= LPC32XX_TS_PM_OPS,
 	},
 };
-
-static int __init lpc32xx_ts_init(void)
-{
-	return platform_driver_register(&lpc32xx_ts_driver);
-}
-module_init(lpc32xx_ts_init);
-
-static void __exit lpc32xx_ts_exit(void)
-{
-	platform_driver_unregister(&lpc32xx_ts_driver);
-}
-module_exit(lpc32xx_ts_exit);
+module_platform_driver(lpc32xx_ts_driver);
 
 MODULE_AUTHOR("Kevin Wells <kevin.wells@nxp.com");
 MODULE_DESCRIPTION("LPC32XX TSC Driver");
diff --git a/drivers/input/touchscreen/mainstone-wm97xx.c b/drivers/input/touchscreen/mainstone-wm97xx.c
index e966c29ff1bb..7d2b2136e5ad 100644
--- a/drivers/input/touchscreen/mainstone-wm97xx.c
+++ b/drivers/input/touchscreen/mainstone-wm97xx.c
@@ -302,19 +302,7 @@ static struct platform_driver mainstone_wm97xx_driver = {
 		.name = "wm97xx-touch",
 	},
 };
-
-static int __init mainstone_wm97xx_init(void)
-{
-	return platform_driver_register(&mainstone_wm97xx_driver);
-}
-
-static void __exit mainstone_wm97xx_exit(void)
-{
-	platform_driver_unregister(&mainstone_wm97xx_driver);
-}
-
-module_init(mainstone_wm97xx_init);
-module_exit(mainstone_wm97xx_exit);
+module_platform_driver(mainstone_wm97xx_driver);
 
 /* Module information */
 MODULE_AUTHOR("Liam Girdwood <lrg@slimlogic.co.uk>");
diff --git a/drivers/input/touchscreen/mc13783_ts.c b/drivers/input/touchscreen/mc13783_ts.c
index ede02743eac1..68f86f7dabbc 100644
--- a/drivers/input/touchscreen/mc13783_ts.c
+++ b/drivers/input/touchscreen/mc13783_ts.c
@@ -240,18 +240,7 @@ static struct platform_driver mc13783_ts_driver = {
 		.name	= MC13783_TS_NAME,
 	},
 };
-
-static int __init mc13783_ts_init(void)
-{
-	return platform_driver_probe(&mc13783_ts_driver, &mc13783_ts_probe);
-}
-module_init(mc13783_ts_init);
-
-static void __exit mc13783_ts_exit(void)
-{
-	platform_driver_unregister(&mc13783_ts_driver);
-}
-module_exit(mc13783_ts_exit);
+module_platform_driver(mc13783_ts_driver);
 
 MODULE_DESCRIPTION("MC13783 input touchscreen driver");
 MODULE_AUTHOR("Sascha Hauer <s.hauer@pengutronix.de>");
diff --git a/drivers/input/touchscreen/migor_ts.c b/drivers/input/touchscreen/migor_ts.c
index 5803bd0c1cca..5226194aa78e 100644
--- a/drivers/input/touchscreen/migor_ts.c
+++ b/drivers/input/touchscreen/migor_ts.c
@@ -36,7 +36,6 @@
 struct migor_ts_priv {
 	struct i2c_client *client;
 	struct input_dev *input;
-	struct delayed_work work;
 	int irq;
 };
 
@@ -44,15 +43,24 @@ static const u_int8_t migor_ts_ena_seq[17] = { 0x33, 0x22, 0x11,
 					       0x01, 0x06, 0x07, };
 static const u_int8_t migor_ts_dis_seq[17] = { };
 
-static void migor_ts_poscheck(struct work_struct *work)
+static irqreturn_t migor_ts_isr(int irq, void *dev_id)
 {
-	struct migor_ts_priv *priv = container_of(work,
-						  struct migor_ts_priv,
-						  work.work);
+	struct migor_ts_priv *priv = dev_id;
 	unsigned short xpos, ypos;
 	unsigned char event;
 	u_int8_t buf[16];
 
+	/*
+	 * The touch screen controller chip is hooked up to the CPU
+	 * using I2C and a single interrupt line. The interrupt line
+	 * is pulled low whenever someone taps the screen. To deassert
+	 * the interrupt line we need to acknowledge the interrupt by
+	 * communicating with the controller over the slow i2c bus.
+	 *
+	 * Since I2C bus controller may sleep we are using threaded
+	 * IRQ here.
+	 */
+
 	memset(buf, 0, sizeof(buf));
 
 	/* Set Index 0 */
@@ -72,41 +80,25 @@ static void migor_ts_poscheck(struct work_struct *work)
 	xpos = ((buf[11] & 0x03) << 8 | buf[10]);
 	event = buf[12];
 
-	if (event == EVENT_PENDOWN || event == EVENT_REPEAT) {
+	switch (event) {
+	case EVENT_PENDOWN:
+	case EVENT_REPEAT:
 		input_report_key(priv->input, BTN_TOUCH, 1);
 		input_report_abs(priv->input, ABS_X, ypos); /*X-Y swap*/
 		input_report_abs(priv->input, ABS_Y, xpos);
 		input_sync(priv->input);
-	} else if (event == EVENT_PENUP) {
+		break;
+
+	case EVENT_PENUP:
 		input_report_key(priv->input, BTN_TOUCH, 0);
 		input_sync(priv->input);
+		break;
 	}
- out:
-	enable_irq(priv->irq);
-}
-
-static irqreturn_t migor_ts_isr(int irq, void *dev_id)
-{
-	struct migor_ts_priv *priv = dev_id;
-
-	/* the touch screen controller chip is hooked up to the cpu
-	 * using i2c and a single interrupt line. the interrupt line
-	 * is pulled low whenever someone taps the screen. to deassert
-	 * the interrupt line we need to acknowledge the interrupt by
-	 * communicating with the controller over the slow i2c bus.
-	 *
-	 * we can't acknowledge from interrupt context since the i2c
-	 * bus controller may sleep, so we just disable the interrupt
-	 * here and handle the acknowledge using delayed work.
-	 */
-
-	disable_irq_nosync(irq);
-	schedule_delayed_work(&priv->work, HZ / 20);
 
+ out:
 	return IRQ_HANDLED;
 }
 
-
 static int migor_ts_open(struct input_dev *dev)
 {
 	struct migor_ts_priv *priv = input_get_drvdata(dev);
@@ -131,15 +123,6 @@ static void migor_ts_close(struct input_dev *dev)
 
 	disable_irq(priv->irq);
 
-	/* cancel pending work and wait for migor_ts_poscheck() to finish */
-	if (cancel_delayed_work_sync(&priv->work)) {
-		/*
-		 * if migor_ts_poscheck was canceled we need to enable IRQ
-		 * here to balance disable done in migor_ts_isr.
-		 */
-		enable_irq(priv->irq);
-	}
-
 	/* disable controller */
 	i2c_master_send(client, migor_ts_dis_seq, sizeof(migor_ts_dis_seq));
 
@@ -154,23 +137,20 @@ static int migor_ts_probe(struct i2c_client *client,
 	int error;
 
 	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
-	if (!priv) {
-		dev_err(&client->dev, "failed to allocate driver data\n");
-		error = -ENOMEM;
-		goto err0;
-	}
-
-	dev_set_drvdata(&client->dev, priv);
-
 	input = input_allocate_device();
-	if (!input) {
-		dev_err(&client->dev, "Failed to allocate input device.\n");
+	if (!priv || !input) {
+		dev_err(&client->dev, "failed to allocate memory\n");
 		error = -ENOMEM;
-		goto err1;
+		goto err_free_mem;
 	}
 
+	priv->client = client;
+	priv->input = input;
+	priv->irq = client->irq;
+
 	input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
-	input->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
+
+	__set_bit(BTN_TOUCH, input->keybit);
 
 	input_set_abs_params(input, ABS_X, 95, 955, 0, 0);
 	input_set_abs_params(input, ABS_Y, 85, 935, 0, 0);
@@ -184,39 +164,34 @@ static int migor_ts_probe(struct i2c_client *client,
 
 	input_set_drvdata(input, priv);
 
-	priv->client = client;
-	priv->input = input;
-	INIT_DELAYED_WORK(&priv->work, migor_ts_poscheck);
-	priv->irq = client->irq;
-
-	error = input_register_device(input);
-	if (error)
-		goto err1;
-
-	error = request_irq(priv->irq, migor_ts_isr, IRQF_TRIGGER_LOW,
-			    client->name, priv);
+	error = request_threaded_irq(priv->irq, NULL, migor_ts_isr,
+                                     IRQF_TRIGGER_LOW | IRQF_ONESHOT,
+                                     client->name, priv);
 	if (error) {
 		dev_err(&client->dev, "Unable to request touchscreen IRQ.\n");
-		goto err2;
+		goto err_free_mem;
 	}
 
+	error = input_register_device(input);
+	if (error)
+		goto err_free_irq;
+
+	i2c_set_clientdata(client, priv);
 	device_init_wakeup(&client->dev, 1);
+
 	return 0;
 
- err2:
-	input_unregister_device(input);
-	input = NULL; /* so we dont try to free it below */
- err1:
+ err_free_irq:
+	free_irq(priv->irq, priv);
+ err_free_mem:
 	input_free_device(input);
 	kfree(priv);
- err0:
-	dev_set_drvdata(&client->dev, NULL);
 	return error;
 }
 
 static int migor_ts_remove(struct i2c_client *client)
 {
-	struct migor_ts_priv *priv = dev_get_drvdata(&client->dev);
+	struct migor_ts_priv *priv = i2c_get_clientdata(client);
 
 	free_irq(priv->irq, priv);
 	input_unregister_device(priv->input);
@@ -230,7 +205,7 @@ static int migor_ts_remove(struct i2c_client *client)
 static int migor_ts_suspend(struct device *dev)
 {
 	struct i2c_client *client = to_i2c_client(dev);
-	struct migor_ts_priv *priv = dev_get_drvdata(&client->dev);
+	struct migor_ts_priv *priv = i2c_get_clientdata(client);
 
 	if (device_may_wakeup(&client->dev))
 		enable_irq_wake(priv->irq);
@@ -241,7 +216,7 @@ static int migor_ts_suspend(struct device *dev)
 static int migor_ts_resume(struct device *dev)
 {
 	struct i2c_client *client = to_i2c_client(dev);
-	struct migor_ts_priv *priv = dev_get_drvdata(&client->dev);
+	struct migor_ts_priv *priv = i2c_get_clientdata(client);
 
 	if (device_may_wakeup(&client->dev))
 		disable_irq_wake(priv->irq);
diff --git a/drivers/input/touchscreen/pcap_ts.c b/drivers/input/touchscreen/pcap_ts.c
index ea6ef16e59b4..f57aeb80f7e3 100644
--- a/drivers/input/touchscreen/pcap_ts.c
+++ b/drivers/input/touchscreen/pcap_ts.c
@@ -252,19 +252,7 @@ static struct platform_driver pcap_ts_driver = {
 		.pm	= PCAP_TS_PM_OPS,
 	},
 };
-
-static int __init pcap_ts_init(void)
-{
-	return platform_driver_register(&pcap_ts_driver);
-}
-
-static void __exit pcap_ts_exit(void)
-{
-	platform_driver_unregister(&pcap_ts_driver);
-}
-
-module_init(pcap_ts_init);
-module_exit(pcap_ts_exit);
+module_platform_driver(pcap_ts_driver);
 
 MODULE_DESCRIPTION("Motorola PCAP2 touchscreen driver");
 MODULE_AUTHOR("Daniel Ribeiro / Harald Welte");
diff --git a/drivers/input/touchscreen/pixcir_i2c_ts.c b/drivers/input/touchscreen/pixcir_i2c_ts.c
new file mode 100644
index 000000000000..d5ac09a1ee56
--- /dev/null
+++ b/drivers/input/touchscreen/pixcir_i2c_ts.c
@@ -0,0 +1,239 @@
+/*
+ * Driver for Pixcir I2C touchscreen controllers.
+ *
+ * Copyright (C) 2010-2011 Pixcir, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+#include <linux/delay.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <linux/i2c.h>
+#include <linux/input.h>
+#include <linux/input/pixcir_ts.h>
+
+struct pixcir_i2c_ts_data {
+	struct i2c_client *client;
+	struct input_dev *input;
+	const struct pixcir_ts_platform_data *chip;
+	bool exiting;
+};
+
+static void pixcir_ts_poscheck(struct pixcir_i2c_ts_data *data)
+{
+	struct pixcir_i2c_ts_data *tsdata = data;
+	u8 rdbuf[10], wrbuf[1] = { 0 };
+	u8 touch;
+	int ret;
+
+	ret = i2c_master_send(tsdata->client, wrbuf, sizeof(wrbuf));
+	if (ret != sizeof(wrbuf)) {
+		dev_err(&tsdata->client->dev,
+			"%s: i2c_master_send failed(), ret=%d\n",
+			__func__, ret);
+		return;
+	}
+
+	ret = i2c_master_recv(tsdata->client, rdbuf, sizeof(rdbuf));
+	if (ret != sizeof(rdbuf)) {
+		dev_err(&tsdata->client->dev,
+			"%s: i2c_master_recv failed(), ret=%d\n",
+			__func__, ret);
+		return;
+	}
+
+	touch = rdbuf[0];
+	if (touch) {
+		u16 posx1 = (rdbuf[3] << 8) | rdbuf[2];
+		u16 posy1 = (rdbuf[5] << 8) | rdbuf[4];
+		u16 posx2 = (rdbuf[7] << 8) | rdbuf[6];
+		u16 posy2 = (rdbuf[9] << 8) | rdbuf[8];
+
+		input_report_key(tsdata->input, BTN_TOUCH, 1);
+		input_report_abs(tsdata->input, ABS_X, posx1);
+		input_report_abs(tsdata->input, ABS_Y, posy1);
+
+		input_report_abs(tsdata->input, ABS_MT_POSITION_X, posx1);
+		input_report_abs(tsdata->input, ABS_MT_POSITION_Y, posy1);
+		input_mt_sync(tsdata->input);
+
+		if (touch == 2) {
+			input_report_abs(tsdata->input,
+					 ABS_MT_POSITION_X, posx2);
+			input_report_abs(tsdata->input,
+					 ABS_MT_POSITION_Y, posy2);
+			input_mt_sync(tsdata->input);
+		}
+	} else {
+		input_report_key(tsdata->input, BTN_TOUCH, 0);
+	}
+
+	input_sync(tsdata->input);
+}
+
+static irqreturn_t pixcir_ts_isr(int irq, void *dev_id)
+{
+	struct pixcir_i2c_ts_data *tsdata = dev_id;
+
+	while (!tsdata->exiting) {
+		pixcir_ts_poscheck(tsdata);
+
+		if (tsdata->chip->attb_read_val())
+			break;
+
+		msleep(20);
+	}
+
+	return IRQ_HANDLED;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int pixcir_i2c_ts_suspend(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+
+	if (device_may_wakeup(&client->dev))
+		enable_irq_wake(client->irq);
+
+	return 0;
+}
+
+static int pixcir_i2c_ts_resume(struct device *dev)
+{
+	struct i2c_client *client = to_i2c_client(dev);
+
+	if (device_may_wakeup(&client->dev))
+		disable_irq_wake(client->irq);
+
+	return 0;
+}
+#endif
+
+static SIMPLE_DEV_PM_OPS(pixcir_dev_pm_ops,
+			 pixcir_i2c_ts_suspend, pixcir_i2c_ts_resume);
+
+static int __devinit pixcir_i2c_ts_probe(struct i2c_client *client,
+					 const struct i2c_device_id *id)
+{
+	const struct pixcir_ts_platform_data *pdata = client->dev.platform_data;
+	struct pixcir_i2c_ts_data *tsdata;
+	struct input_dev *input;
+	int error;
+
+	if (!pdata) {
+		dev_err(&client->dev, "platform data not defined\n");
+		return -EINVAL;
+	}
+
+	tsdata = kzalloc(sizeof(*tsdata), GFP_KERNEL);
+	input = input_allocate_device();
+	if (!tsdata || !input) {
+		dev_err(&client->dev, "Failed to allocate driver data!\n");
+		error = -ENOMEM;
+		goto err_free_mem;
+	}
+
+	tsdata->client = client;
+	tsdata->input = input;
+	tsdata->chip = pdata;
+
+	input->name = client->name;
+	input->id.bustype = BUS_I2C;
+	input->dev.parent = &client->dev;
+
+	__set_bit(EV_KEY, input->evbit);
+	__set_bit(EV_ABS, input->evbit);
+	__set_bit(BTN_TOUCH, input->keybit);
+	input_set_abs_params(input, ABS_X, 0, pdata->x_max, 0, 0);
+	input_set_abs_params(input, ABS_Y, 0, pdata->y_max, 0, 0);
+	input_set_abs_params(input, ABS_MT_POSITION_X, 0, pdata->x_max, 0, 0);
+	input_set_abs_params(input, ABS_MT_POSITION_Y, 0, pdata->y_max, 0, 0);
+
+	input_set_drvdata(input, tsdata);
+
+	error = request_threaded_irq(client->irq, NULL, pixcir_ts_isr,
+				     IRQF_TRIGGER_FALLING,
+				     client->name, tsdata);
+	if (error) {
+		dev_err(&client->dev, "Unable to request touchscreen IRQ.\n");
+		goto err_free_mem;
+	}
+
+	error = input_register_device(input);
+	if (error)
+		goto err_free_irq;
+
+	i2c_set_clientdata(client, tsdata);
+	device_init_wakeup(&client->dev, 1);
+
+	return 0;
+
+err_free_irq:
+	free_irq(client->irq, tsdata);
+err_free_mem:
+	input_free_device(input);
+	kfree(tsdata);
+	return error;
+}
+
+static int __devexit pixcir_i2c_ts_remove(struct i2c_client *client)
+{
+	struct pixcir_i2c_ts_data *tsdata = i2c_get_clientdata(client);
+
+	device_init_wakeup(&client->dev, 0);
+
+	tsdata->exiting = true;
+	mb();
+	free_irq(client->irq, tsdata);
+
+	input_unregister_device(tsdata->input);
+	kfree(tsdata);
+
+	return 0;
+}
+
+static const struct i2c_device_id pixcir_i2c_ts_id[] = {
+	{ "pixcir_ts", 0 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, pixcir_i2c_ts_id);
+
+static struct i2c_driver pixcir_i2c_ts_driver = {
+	.driver = {
+		.owner	= THIS_MODULE,
+		.name	= "pixcir_ts",
+		.pm	= &pixcir_dev_pm_ops,
+	},
+	.probe		= pixcir_i2c_ts_probe,
+	.remove		= __devexit_p(pixcir_i2c_ts_remove),
+	.id_table	= pixcir_i2c_ts_id,
+};
+
+static int __init pixcir_i2c_ts_init(void)
+{
+	return i2c_add_driver(&pixcir_i2c_ts_driver);
+}
+module_init(pixcir_i2c_ts_init);
+
+static void __exit pixcir_i2c_ts_exit(void)
+{
+	i2c_del_driver(&pixcir_i2c_ts_driver);
+}
+module_exit(pixcir_i2c_ts_exit);
+
+MODULE_AUTHOR("Jianchun Bian <jcbian@pixcir.com.cn>, Dequan Meng <dqmeng@pixcir.com.cn>");
+MODULE_DESCRIPTION("Pixcir I2C Touchscreen Driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/s3c2410_ts.c b/drivers/input/touchscreen/s3c2410_ts.c
index 64ce697a3456..bf1a06400067 100644
--- a/drivers/input/touchscreen/s3c2410_ts.c
+++ b/drivers/input/touchscreen/s3c2410_ts.c
@@ -432,19 +432,7 @@ static struct platform_driver s3c_ts_driver = {
 	.probe		= s3c2410ts_probe,
 	.remove		= __devexit_p(s3c2410ts_remove),
 };
-
-static int __init s3c2410ts_init(void)
-{
-	return platform_driver_register(&s3c_ts_driver);
-}
-
-static void __exit s3c2410ts_exit(void)
-{
-	platform_driver_unregister(&s3c_ts_driver);
-}
-
-module_init(s3c2410ts_init);
-module_exit(s3c2410ts_exit);
+module_platform_driver(s3c_ts_driver);
 
 MODULE_AUTHOR("Arnaud Patard <arnaud.patard@rtp-net.org>, "
 	      "Ben Dooks <ben@simtec.co.uk>, "
diff --git a/drivers/input/touchscreen/stmpe-ts.c b/drivers/input/touchscreen/stmpe-ts.c
index ae88e13c99ff..692b685720ce 100644
--- a/drivers/input/touchscreen/stmpe-ts.c
+++ b/drivers/input/touchscreen/stmpe-ts.c
@@ -379,20 +379,7 @@ static struct platform_driver stmpe_ts_driver = {
 	.probe = stmpe_input_probe,
 	.remove = __devexit_p(stmpe_ts_remove),
 };
-
-static int __init stmpe_ts_init(void)
-{
-	return platform_driver_register(&stmpe_ts_driver);
-}
-
-module_init(stmpe_ts_init);
-
-static void __exit stmpe_ts_exit(void)
-{
-	platform_driver_unregister(&stmpe_ts_driver);
-}
-
-module_exit(stmpe_ts_exit);
+module_platform_driver(stmpe_ts_driver);
 
 MODULE_AUTHOR("Luotao Fu <l.fu@pengutronix.de>");
 MODULE_DESCRIPTION("STMPEXXX touchscreen driver");
diff --git a/drivers/input/touchscreen/tnetv107x-ts.c b/drivers/input/touchscreen/tnetv107x-ts.c
index 0e8f63e5b36f..7e7488097359 100644
--- a/drivers/input/touchscreen/tnetv107x-ts.c
+++ b/drivers/input/touchscreen/tnetv107x-ts.c
@@ -378,19 +378,7 @@ static struct platform_driver tsc_driver = {
 	.driver.name	= "tnetv107x-ts",
 	.driver.owner	= THIS_MODULE,
 };
-
-static int __init tsc_init(void)
-{
-	return platform_driver_register(&tsc_driver);
-}
-
-static void __exit tsc_exit(void)
-{
-	platform_driver_unregister(&tsc_driver);
-}
-
-module_init(tsc_init);
-module_exit(tsc_exit);
+module_platform_driver(tsc_driver);
 
 MODULE_AUTHOR("Cyril Chemparathy");
 MODULE_DESCRIPTION("TNETV107X Touchscreen Driver");
diff --git a/drivers/input/touchscreen/tps6507x-ts.c b/drivers/input/touchscreen/tps6507x-ts.c
index 43031492d733..6c6f6d8ea9b4 100644
--- a/drivers/input/touchscreen/tps6507x-ts.c
+++ b/drivers/input/touchscreen/tps6507x-ts.c
@@ -371,18 +371,7 @@ static struct platform_driver tps6507x_ts_driver = {
 	.probe = tps6507x_ts_probe,
 	.remove = __devexit_p(tps6507x_ts_remove),
 };
-
-static int __init tps6507x_ts_init(void)
-{
-	return platform_driver_register(&tps6507x_ts_driver);
-}
-module_init(tps6507x_ts_init);
-
-static void __exit tps6507x_ts_exit(void)
-{
-	platform_driver_unregister(&tps6507x_ts_driver);
-}
-module_exit(tps6507x_ts_exit);
+module_platform_driver(tps6507x_ts_driver);
 
 MODULE_AUTHOR("Todd Fischer <todd.fischer@ridgerun.com>");
 MODULE_DESCRIPTION("TPS6507x - TouchScreen driver");
diff --git a/drivers/input/touchscreen/ucb1400_ts.c b/drivers/input/touchscreen/ucb1400_ts.c
index 3b5b5df04dd6..d2b57536feea 100644
--- a/drivers/input/touchscreen/ucb1400_ts.c
+++ b/drivers/input/touchscreen/ucb1400_ts.c
@@ -20,24 +20,24 @@
 
 #include <linux/module.h>
 #include <linux/init.h>
-#include <linux/completion.h>
 #include <linux/delay.h>
+#include <linux/sched.h>
+#include <linux/wait.h>
 #include <linux/input.h>
 #include <linux/device.h>
 #include <linux/interrupt.h>
-#include <linux/suspend.h>
-#include <linux/kthread.h>
-#include <linux/freezer.h>
 #include <linux/ucb1400.h>
 
+#define UCB1400_TS_POLL_PERIOD	10 /* ms */
+
 static int adcsync;
 static int ts_delay = 55; /* us */
 static int ts_delay_pressure;	/* us */
 
 /* Switch to interrupt mode. */
-static inline void ucb1400_ts_mode_int(struct snd_ac97 *ac97)
+static void ucb1400_ts_mode_int(struct ucb1400_ts *ucb)
 {
-	ucb1400_reg_write(ac97, UCB_TS_CR,
+	ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
 			UCB_TS_CR_TSMX_POW | UCB_TS_CR_TSPX_POW |
 			UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_GND |
 			UCB_TS_CR_MODE_INT);
@@ -47,13 +47,15 @@ static inline void ucb1400_ts_mode_int(struct snd_ac97 *ac97)
  * Switch to pressure mode, and read pressure.  We don't need to wait
  * here, since both plates are being driven.
  */
-static inline unsigned int ucb1400_ts_read_pressure(struct ucb1400_ts *ucb)
+static unsigned int ucb1400_ts_read_pressure(struct ucb1400_ts *ucb)
 {
 	ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
 			UCB_TS_CR_TSMX_POW | UCB_TS_CR_TSPX_POW |
 			UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_GND |
 			UCB_TS_CR_MODE_PRES | UCB_TS_CR_BIAS_ENA);
+
 	udelay(ts_delay_pressure);
+
 	return ucb1400_adc_read(ucb->ac97, UCB_ADC_INP_TSPY, adcsync);
 }
 
@@ -63,7 +65,7 @@ static inline unsigned int ucb1400_ts_read_pressure(struct ucb1400_ts *ucb)
  * gives a faster response time.  Even so, we need to wait about 55us
  * for things to stabilise.
  */
-static inline unsigned int ucb1400_ts_read_xpos(struct ucb1400_ts *ucb)
+static unsigned int ucb1400_ts_read_xpos(struct ucb1400_ts *ucb)
 {
 	ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
 			UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW |
@@ -86,7 +88,7 @@ static inline unsigned int ucb1400_ts_read_xpos(struct ucb1400_ts *ucb)
  * gives a faster response time.  Even so, we need to wait about 55us
  * for things to stabilise.
  */
-static inline unsigned int ucb1400_ts_read_ypos(struct ucb1400_ts *ucb)
+static int ucb1400_ts_read_ypos(struct ucb1400_ts *ucb)
 {
 	ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
 			UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW |
@@ -107,7 +109,7 @@ static inline unsigned int ucb1400_ts_read_ypos(struct ucb1400_ts *ucb)
  * Switch to X plate resistance mode.  Set MX to ground, PX to
  * supply.  Measure current.
  */
-static inline unsigned int ucb1400_ts_read_xres(struct ucb1400_ts *ucb)
+static unsigned int ucb1400_ts_read_xres(struct ucb1400_ts *ucb)
 {
 	ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
 			UCB_TS_CR_TSMX_GND | UCB_TS_CR_TSPX_POW |
@@ -119,7 +121,7 @@ static inline unsigned int ucb1400_ts_read_xres(struct ucb1400_ts *ucb)
  * Switch to Y plate resistance mode.  Set MY to ground, PY to
  * supply.  Measure current.
  */
-static inline unsigned int ucb1400_ts_read_yres(struct ucb1400_ts *ucb)
+static unsigned int ucb1400_ts_read_yres(struct ucb1400_ts *ucb)
 {
 	ucb1400_reg_write(ucb->ac97, UCB_TS_CR,
 			UCB_TS_CR_TSMY_GND | UCB_TS_CR_TSPY_POW |
@@ -127,26 +129,26 @@ static inline unsigned int ucb1400_ts_read_yres(struct ucb1400_ts *ucb)
 	return ucb1400_adc_read(ucb->ac97, 0, adcsync);
 }
 
-static inline int ucb1400_ts_pen_up(struct snd_ac97 *ac97)
+static int ucb1400_ts_pen_up(struct ucb1400_ts *ucb)
 {
-	unsigned short val = ucb1400_reg_read(ac97, UCB_TS_CR);
+	unsigned short val = ucb1400_reg_read(ucb->ac97, UCB_TS_CR);
 
 	return val & (UCB_TS_CR_TSPX_LOW | UCB_TS_CR_TSMX_LOW);
 }
 
-static inline void ucb1400_ts_irq_enable(struct snd_ac97 *ac97)
+static void ucb1400_ts_irq_enable(struct ucb1400_ts *ucb)
 {
-	ucb1400_reg_write(ac97, UCB_IE_CLEAR, UCB_IE_TSPX);
-	ucb1400_reg_write(ac97, UCB_IE_CLEAR, 0);
-	ucb1400_reg_write(ac97, UCB_IE_FAL, UCB_IE_TSPX);
+	ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, UCB_IE_TSPX);
+	ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0);
+	ucb1400_reg_write(ucb->ac97, UCB_IE_FAL, UCB_IE_TSPX);
 }
 
-static inline void ucb1400_ts_irq_disable(struct snd_ac97 *ac97)
+static void ucb1400_ts_irq_disable(struct ucb1400_ts *ucb)
 {
-	ucb1400_reg_write(ac97, UCB_IE_FAL, 0);
+	ucb1400_reg_write(ucb->ac97, UCB_IE_FAL, 0);
 }
 
-static void ucb1400_ts_evt_add(struct input_dev *idev, u16 pressure, u16 x, u16 y)
+static void ucb1400_ts_report_event(struct input_dev *idev, u16 pressure, u16 x, u16 y)
 {
 	input_report_abs(idev, ABS_X, x);
 	input_report_abs(idev, ABS_Y, y);
@@ -162,7 +164,7 @@ static void ucb1400_ts_event_release(struct input_dev *idev)
 	input_sync(idev);
 }
 
-static void ucb1400_handle_pending_irq(struct ucb1400_ts *ucb)
+static void ucb1400_clear_pending_irq(struct ucb1400_ts *ucb)
 {
 	unsigned int isr;
 
@@ -171,32 +173,34 @@ static void ucb1400_handle_pending_irq(struct ucb1400_ts *ucb)
 	ucb1400_reg_write(ucb->ac97, UCB_IE_CLEAR, 0);
 
 	if (isr & UCB_IE_TSPX)
-		ucb1400_ts_irq_disable(ucb->ac97);
+		ucb1400_ts_irq_disable(ucb);
 	else
-		dev_dbg(&ucb->ts_idev->dev, "ucb1400: unexpected IE_STATUS = %#x\n", isr);
-	enable_irq(ucb->irq);
+		dev_dbg(&ucb->ts_idev->dev,
+			"ucb1400: unexpected IE_STATUS = %#x\n", isr);
 }
 
-static int ucb1400_ts_thread(void *_ucb)
+/*
+ * A restriction with interrupts exists when using the ucb1400, as
+ * the codec read/write routines may sleep while waiting for codec
+ * access completion and uses semaphores for access control to the
+ * AC97 bus. Therefore the driver is forced to use threaded interrupt
+ * handler.
+ */
+static irqreturn_t ucb1400_irq(int irqnr, void *devid)
 {
-	struct ucb1400_ts *ucb = _ucb;
-	struct task_struct *tsk = current;
-	int valid = 0;
-	struct sched_param param = { .sched_priority = 1 };
+	struct ucb1400_ts *ucb = devid;
+	unsigned int x, y, p;
+	bool penup;
 
-	sched_setscheduler(tsk, SCHED_FIFO, &param);
+	if (unlikely(irqnr != ucb->irq))
+		return IRQ_NONE;
 
-	set_freezable();
-	while (!kthread_should_stop()) {
-		unsigned int x, y, p;
-		long timeout;
+	ucb1400_clear_pending_irq(ucb);
 
-		ucb->ts_restart = 0;
+	/* Start with a small delay before checking pendown state */
+	msleep(UCB1400_TS_POLL_PERIOD);
 
-		if (ucb->irq_pending) {
-			ucb->irq_pending = 0;
-			ucb1400_handle_pending_irq(ucb);
-		}
+	while (!ucb->stopped && !(penup = ucb1400_ts_pen_up(ucb))) {
 
 		ucb1400_adc_enable(ucb->ac97);
 		x = ucb1400_ts_read_xpos(ucb);
@@ -204,91 +208,62 @@ static int ucb1400_ts_thread(void *_ucb)
 		p = ucb1400_ts_read_pressure(ucb);
 		ucb1400_adc_disable(ucb->ac97);
 
-		/* Switch back to interrupt mode. */
-		ucb1400_ts_mode_int(ucb->ac97);
-
-		msleep(10);
-
-		if (ucb1400_ts_pen_up(ucb->ac97)) {
-			ucb1400_ts_irq_enable(ucb->ac97);
-
-			/*
-			 * If we spat out a valid sample set last time,
-			 * spit out a "pen off" sample here.
-			 */
-			if (valid) {
-				ucb1400_ts_event_release(ucb->ts_idev);
-				valid = 0;
-			}
-
-			timeout = MAX_SCHEDULE_TIMEOUT;
-		} else {
-			valid = 1;
-			ucb1400_ts_evt_add(ucb->ts_idev, p, x, y);
-			timeout = msecs_to_jiffies(10);
-		}
+		ucb1400_ts_report_event(ucb->ts_idev, p, x, y);
 
-		wait_event_freezable_timeout(ucb->ts_wait,
-			ucb->irq_pending || ucb->ts_restart ||
-			kthread_should_stop(), timeout);
+		wait_event_timeout(ucb->ts_wait, ucb->stopped,
+				   msecs_to_jiffies(UCB1400_TS_POLL_PERIOD));
 	}
 
-	/* Send the "pen off" if we are stopping with the pen still active */
-	if (valid)
-		ucb1400_ts_event_release(ucb->ts_idev);
+	ucb1400_ts_event_release(ucb->ts_idev);
 
-	ucb->ts_task = NULL;
-	return 0;
+	if (!ucb->stopped) {
+		/* Switch back to interrupt mode. */
+		ucb1400_ts_mode_int(ucb);
+		ucb1400_ts_irq_enable(ucb);
+	}
+
+	return IRQ_HANDLED;
 }
 
-/*
- * A restriction with interrupts exists when using the ucb1400, as
- * the codec read/write routines may sleep while waiting for codec
- * access completion and uses semaphores for access control to the
- * AC97 bus.  A complete codec read cycle could take  anywhere from
- * 60 to 100uSec so we *definitely* don't want to spin inside the
- * interrupt handler waiting for codec access.  So, we handle the
- * interrupt by scheduling a RT kernel thread to run in process
- * context instead of interrupt context.
- */
-static irqreturn_t ucb1400_hard_irq(int irqnr, void *devid)
+static void ucb1400_ts_stop(struct ucb1400_ts *ucb)
 {
-	struct ucb1400_ts *ucb = devid;
+	/* Signal IRQ thread to stop polling and disable the handler. */
+	ucb->stopped = true;
+	mb();
+	wake_up(&ucb->ts_wait);
+	disable_irq(ucb->irq);
 
-	if (irqnr == ucb->irq) {
-		disable_irq_nosync(ucb->irq);
-		ucb->irq_pending = 1;
-		wake_up(&ucb->ts_wait);
-		return IRQ_HANDLED;
-	}
-	return IRQ_NONE;
+	ucb1400_ts_irq_disable(ucb);
+	ucb1400_reg_write(ucb->ac97, UCB_TS_CR, 0);
+}
+
+/* Must be called with ts->lock held */
+static void ucb1400_ts_start(struct ucb1400_ts *ucb)
+{
+	/* Tell IRQ thread that it may poll the device. */
+	ucb->stopped = false;
+	mb();
+
+	ucb1400_ts_mode_int(ucb);
+	ucb1400_ts_irq_enable(ucb);
+
+	enable_irq(ucb->irq);
 }
 
 static int ucb1400_ts_open(struct input_dev *idev)
 {
 	struct ucb1400_ts *ucb = input_get_drvdata(idev);
-	int ret = 0;
 
-	BUG_ON(ucb->ts_task);
+	ucb1400_ts_start(ucb);
 
-	ucb->ts_task = kthread_run(ucb1400_ts_thread, ucb, "UCB1400_ts");
-	if (IS_ERR(ucb->ts_task)) {
-		ret = PTR_ERR(ucb->ts_task);
-		ucb->ts_task = NULL;
-	}
-
-	return ret;
+	return 0;
 }
 
 static void ucb1400_ts_close(struct input_dev *idev)
 {
 	struct ucb1400_ts *ucb = input_get_drvdata(idev);
 
-	if (ucb->ts_task)
-		kthread_stop(ucb->ts_task);
-
-	ucb1400_ts_irq_disable(ucb->ac97);
-	ucb1400_reg_write(ucb->ac97, UCB_TS_CR, 0);
+	ucb1400_ts_stop(ucb);
 }
 
 #ifndef NO_IRQ
@@ -299,7 +274,8 @@ static void ucb1400_ts_close(struct input_dev *idev)
  * Try to probe our interrupt, rather than relying on lots of
  * hard-coded machine dependencies.
  */
-static int ucb1400_ts_detect_irq(struct ucb1400_ts *ucb)
+static int __devinit ucb1400_ts_detect_irq(struct ucb1400_ts *ucb,
+					   struct platform_device *pdev)
 {
 	unsigned long mask, timeout;
 
@@ -321,7 +297,7 @@ static int ucb1400_ts_detect_irq(struct ucb1400_ts *ucb)
 						UCB_ADC_DAT_VALID)) {
 		cpu_relax();
 		if (time_after(jiffies, timeout)) {
-			printk(KERN_ERR "ucb1400: timed out in IRQ probe\n");
+			dev_err(&pdev->dev, "timed out in IRQ probe\n");
 			probe_irq_off(mask);
 			return -ENODEV;
 		}
@@ -342,11 +318,11 @@ static int ucb1400_ts_detect_irq(struct ucb1400_ts *ucb)
 	return 0;
 }
 
-static int ucb1400_ts_probe(struct platform_device *dev)
+static int __devinit ucb1400_ts_probe(struct platform_device *pdev)
 {
+	struct ucb1400_ts *ucb = pdev->dev.platform_data;
 	int error, x_res, y_res;
 	u16 fcsr;
-	struct ucb1400_ts *ucb = dev->dev.platform_data;
 
 	ucb->ts_idev = input_allocate_device();
 	if (!ucb->ts_idev) {
@@ -356,27 +332,19 @@ static int ucb1400_ts_probe(struct platform_device *dev)
 
 	/* Only in case the IRQ line wasn't supplied, try detecting it */
 	if (ucb->irq < 0) {
-		error = ucb1400_ts_detect_irq(ucb);
+		error = ucb1400_ts_detect_irq(ucb, pdev);
 		if (error) {
-			printk(KERN_ERR "UCB1400: IRQ probe failed\n");
+			dev_err(&pdev->dev, "IRQ probe failed\n");
 			goto err_free_devs;
 		}
 	}
+	dev_dbg(&pdev->dev, "found IRQ %d\n", ucb->irq);
 
 	init_waitqueue_head(&ucb->ts_wait);
 
-	error = request_irq(ucb->irq, ucb1400_hard_irq, IRQF_TRIGGER_RISING,
-				"UCB1400", ucb);
-	if (error) {
-		printk(KERN_ERR "ucb1400: unable to grab irq%d: %d\n",
-				ucb->irq, error);
-		goto err_free_devs;
-	}
-	printk(KERN_DEBUG "UCB1400: found IRQ %d\n", ucb->irq);
-
 	input_set_drvdata(ucb->ts_idev, ucb);
 
-	ucb->ts_idev->dev.parent	= &dev->dev;
+	ucb->ts_idev->dev.parent	= &pdev->dev;
 	ucb->ts_idev->name		= "UCB1400 touchscreen interface";
 	ucb->ts_idev->id.vendor		= ucb1400_reg_read(ucb->ac97,
 						AC97_VENDOR_ID1);
@@ -398,12 +366,23 @@ static int ucb1400_ts_probe(struct platform_device *dev)
 	x_res = ucb1400_ts_read_xres(ucb);
 	y_res = ucb1400_ts_read_yres(ucb);
 	ucb1400_adc_disable(ucb->ac97);
-	printk(KERN_DEBUG "UCB1400: x/y = %d/%d\n", x_res, y_res);
+	dev_dbg(&pdev->dev, "x/y = %d/%d\n", x_res, y_res);
 
 	input_set_abs_params(ucb->ts_idev, ABS_X, 0, x_res, 0, 0);
 	input_set_abs_params(ucb->ts_idev, ABS_Y, 0, y_res, 0, 0);
 	input_set_abs_params(ucb->ts_idev, ABS_PRESSURE, 0, 0, 0, 0);
 
+	ucb1400_ts_stop(ucb);
+
+	error = request_threaded_irq(ucb->irq, NULL, ucb1400_irq,
+				     IRQF_TRIGGER_RISING | IRQF_ONESHOT,
+				     "UCB1400", ucb);
+	if (error) {
+		dev_err(&pdev->dev,
+			"unable to grab irq%d: %d\n", ucb->irq, error);
+		goto err_free_devs;
+	}
+
 	error = input_register_device(ucb->ts_idev);
 	if (error)
 		goto err_free_irq;
@@ -416,56 +395,61 @@ err_free_devs:
 	input_free_device(ucb->ts_idev);
 err:
 	return error;
-
 }
 
-static int ucb1400_ts_remove(struct platform_device *dev)
+static int __devexit ucb1400_ts_remove(struct platform_device *pdev)
 {
-	struct ucb1400_ts *ucb = dev->dev.platform_data;
+	struct ucb1400_ts *ucb = pdev->dev.platform_data;
 
 	free_irq(ucb->irq, ucb);
 	input_unregister_device(ucb->ts_idev);
+
 	return 0;
 }
 
-#ifdef CONFIG_PM
-static int ucb1400_ts_resume(struct platform_device *dev)
+#ifdef CONFIG_PM_SLEEP
+static int ucb1400_ts_suspend(struct device *dev)
 {
-	struct ucb1400_ts *ucb = dev->dev.platform_data;
-
-	if (ucb->ts_task) {
-		/*
-		 * Restart the TS thread to ensure the
-		 * TS interrupt mode is set up again
-		 * after sleep.
-		 */
-		ucb->ts_restart = 1;
-		wake_up(&ucb->ts_wait);
-	}
+	struct ucb1400_ts *ucb = dev->platform_data;
+	struct input_dev *idev = ucb->ts_idev;
+
+	mutex_lock(&idev->mutex);
+
+	if (idev->users)
+		ucb1400_ts_start(ucb);
+
+	mutex_unlock(&idev->mutex);
+	return 0;
+}
+
+static int ucb1400_ts_resume(struct device *dev)
+{
+	struct ucb1400_ts *ucb = dev->platform_data;
+	struct input_dev *idev = ucb->ts_idev;
+
+	mutex_lock(&idev->mutex);
+
+	if (idev->users)
+		ucb1400_ts_stop(ucb);
+
+	mutex_unlock(&idev->mutex);
 	return 0;
 }
-#else
-#define ucb1400_ts_resume NULL
 #endif
 
+static SIMPLE_DEV_PM_OPS(ucb1400_ts_pm_ops,
+			 ucb1400_ts_suspend, ucb1400_ts_resume);
+
 static struct platform_driver ucb1400_ts_driver = {
 	.probe	= ucb1400_ts_probe,
-	.remove	= ucb1400_ts_remove,
-	.resume	= ucb1400_ts_resume,
+	.remove	= __devexit_p(ucb1400_ts_remove),
 	.driver	= {
 		.name	= "ucb1400_ts",
+		.owner	= THIS_MODULE,
+		.pm	= &ucb1400_ts_pm_ops,
 	},
 };
-
-static int __init ucb1400_ts_init(void)
-{
-	return platform_driver_register(&ucb1400_ts_driver);
-}
-
-static void __exit ucb1400_ts_exit(void)
-{
-	platform_driver_unregister(&ucb1400_ts_driver);
-}
+module_platform_driver(ucb1400_ts_driver);
 
 module_param(adcsync, bool, 0444);
 MODULE_PARM_DESC(adcsync, "Synchronize touch readings with ADCSYNC pin.");
@@ -479,8 +463,5 @@ MODULE_PARM_DESC(ts_delay_pressure,
 		"delay between panel setup and pressure read."
 		"  Default = 0us.");
 
-module_init(ucb1400_ts_init);
-module_exit(ucb1400_ts_exit);
-
 MODULE_DESCRIPTION("Philips UCB1400 touchscreen driver");
 MODULE_LICENSE("GPL");
diff --git a/drivers/input/touchscreen/usbtouchscreen.c b/drivers/input/touchscreen/usbtouchscreen.c
index e539d92cc626..06cef3ccc63a 100644
--- a/drivers/input/touchscreen/usbtouchscreen.c
+++ b/drivers/input/touchscreen/usbtouchscreen.c
@@ -16,6 +16,7 @@
  *  - JASTEC USB touch controller/DigiTech DTR-02U
  *  - Zytronic capacitive touchscreen
  *  - NEXIO/iNexio
+ *  - Elo TouchSystems 2700 IntelliTouch
  *
  * Copyright (C) 2004-2007 by Daniel Ritz <daniel.ritz@gmx.ch>
  * Copyright (C) by Todd E. Johnson (mtouchusb.c)
@@ -138,6 +139,7 @@ enum {
 	DEVTYPE_ZYTRONIC,
 	DEVTYPE_TC45USB,
 	DEVTYPE_NEXIO,
+	DEVTYPE_ELO,
 };
 
 #define USB_DEVICE_HID_CLASS(vend, prod) \
@@ -239,6 +241,10 @@ static const struct usb_device_id usbtouch_devices[] = {
 		.driver_info = DEVTYPE_NEXIO},
 #endif
 
+#ifdef CONFIG_TOUCHSCREEN_USB_ELO
+	{USB_DEVICE(0x04e7, 0x0020), .driver_info = DEVTYPE_ELO},
+#endif
+
 	{}
 };
 
@@ -945,6 +951,24 @@ static int nexio_read_data(struct usbtouch_usb *usbtouch, unsigned char *pkt)
 
 
 /*****************************************************************************
+ * ELO part
+ */
+
+#ifdef CONFIG_TOUCHSCREEN_USB_ELO
+
+static int elo_read_data(struct usbtouch_usb *dev, unsigned char *pkt)
+{
+	dev->x = (pkt[3] << 8) | pkt[2];
+	dev->y = (pkt[5] << 8) | pkt[4];
+	dev->touch = pkt[6] > 0;
+	dev->press = pkt[6];
+
+	return 1;
+}
+#endif
+
+
+/*****************************************************************************
  * the different device descriptors
  */
 #ifdef MULTI_PACKET
@@ -953,6 +977,18 @@ static void usbtouch_process_multi(struct usbtouch_usb *usbtouch,
 #endif
 
 static struct usbtouch_device_info usbtouch_dev_info[] = {
+#ifdef CONFIG_TOUCHSCREEN_USB_ELO
+	[DEVTYPE_ELO] = {
+		.min_xc		= 0x0,
+		.max_xc		= 0x0fff,
+		.min_yc		= 0x0,
+		.max_yc		= 0x0fff,
+		.max_press	= 0xff,
+		.rept_size	= 8,
+		.read_data	= elo_read_data,
+	},
+#endif
+
 #ifdef CONFIG_TOUCHSCREEN_USB_EGALAX
 	[DEVTYPE_EGALAX] = {
 		.min_xc		= 0x0,
diff --git a/drivers/input/touchscreen/w90p910_ts.c b/drivers/input/touchscreen/w90p910_ts.c
index 217aa51135c5..9396b21d0e8f 100644
--- a/drivers/input/touchscreen/w90p910_ts.c
+++ b/drivers/input/touchscreen/w90p910_ts.c
@@ -331,19 +331,7 @@ static struct platform_driver w90x900ts_driver = {
 		.owner	= THIS_MODULE,
 	},
 };
-
-static int __init w90x900ts_init(void)
-{
-	return platform_driver_register(&w90x900ts_driver);
-}
-
-static void __exit w90x900ts_exit(void)
-{
-	platform_driver_unregister(&w90x900ts_driver);
-}
-
-module_init(w90x900ts_init);
-module_exit(w90x900ts_exit);
+module_platform_driver(w90x900ts_driver);
 
 MODULE_AUTHOR("Wan ZongShun <mcuos.com@gmail.com>");
 MODULE_DESCRIPTION("w90p910 touch screen driver!");
diff --git a/drivers/input/touchscreen/wm831x-ts.c b/drivers/input/touchscreen/wm831x-ts.c
index 9175d49d2546..4bc851a9dc3d 100644
--- a/drivers/input/touchscreen/wm831x-ts.c
+++ b/drivers/input/touchscreen/wm831x-ts.c
@@ -401,18 +401,7 @@ static struct platform_driver wm831x_ts_driver = {
 	.probe = wm831x_ts_probe,
 	.remove = __devexit_p(wm831x_ts_remove),
 };
-
-static int __init wm831x_ts_init(void)
-{
-	return platform_driver_register(&wm831x_ts_driver);
-}
-module_init(wm831x_ts_init);
-
-static void __exit wm831x_ts_exit(void)
-{
-	platform_driver_unregister(&wm831x_ts_driver);
-}
-module_exit(wm831x_ts_exit);
+module_platform_driver(wm831x_ts_driver);
 
 /* Module information */
 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
diff --git a/drivers/input/touchscreen/zylonite-wm97xx.c b/drivers/input/touchscreen/zylonite-wm97xx.c
index f6328c0cded6..bf0869a7a78e 100644
--- a/drivers/input/touchscreen/zylonite-wm97xx.c
+++ b/drivers/input/touchscreen/zylonite-wm97xx.c
@@ -22,6 +22,7 @@
 #include <linux/kernel.h>
 #include <linux/init.h>
 #include <linux/delay.h>
+#include <linux/gpio.h>
 #include <linux/irq.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
@@ -192,8 +193,8 @@ static int zylonite_wm97xx_probe(struct platform_device *pdev)
 	else
 		gpio_touch_irq = mfp_to_gpio(MFP_PIN_GPIO26);
 
-	wm->pen_irq = IRQ_GPIO(gpio_touch_irq);
-	irq_set_irq_type(IRQ_GPIO(gpio_touch_irq), IRQ_TYPE_EDGE_BOTH);
+	wm->pen_irq = gpio_to_irq(gpio_touch_irq);
+	irq_set_irq_type(wm->pen_irq, IRQ_TYPE_EDGE_BOTH);
 
 	wm97xx_config_gpio(wm, WM97XX_GPIO_13, WM97XX_GPIO_IN,
 			   WM97XX_GPIO_POL_HIGH,
@@ -223,19 +224,7 @@ static struct platform_driver zylonite_wm97xx_driver = {
 		.name	= "wm97xx-touch",
 	},
 };
-
-static int __init zylonite_wm97xx_init(void)
-{
-	return platform_driver_register(&zylonite_wm97xx_driver);
-}
-
-static void __exit zylonite_wm97xx_exit(void)
-{
-	platform_driver_unregister(&zylonite_wm97xx_driver);
-}
-
-module_init(zylonite_wm97xx_init);
-module_exit(zylonite_wm97xx_exit);
+module_platform_driver(zylonite_wm97xx_driver);
 
 /* Module information */
 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
index 5414253b185a..6bea6962f8ee 100644
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@ -34,7 +34,9 @@ config AMD_IOMMU
 	bool "AMD IOMMU support"
 	select SWIOTLB
 	select PCI_MSI
-	select PCI_IOV
+	select PCI_ATS
+	select PCI_PRI
+	select PCI_PASID
 	select IOMMU_API
 	depends on X86_64 && PCI && ACPI
 	---help---
@@ -58,6 +60,15 @@ config AMD_IOMMU_STATS
 	  information to userspace via debugfs.
 	  If unsure, say N.
 
+config AMD_IOMMU_V2
+	tristate "AMD IOMMU Version 2 driver (EXPERIMENTAL)"
+	depends on AMD_IOMMU && PROFILING && EXPERIMENTAL
+	select MMU_NOTIFIER
+	---help---
+	  This option enables support for the AMD IOMMUv2 features of the IOMMU
+	  hardware. Select this option if you want to use devices that support
+	  the the PCI PRI and PASID interface.
+
 # Intel IOMMU support
 config DMAR_TABLE
 	bool
diff --git a/drivers/iommu/Makefile b/drivers/iommu/Makefile
index 2f4448794bc7..0e36b4934aff 100644
--- a/drivers/iommu/Makefile
+++ b/drivers/iommu/Makefile
@@ -1,6 +1,7 @@
 obj-$(CONFIG_IOMMU_API) += iommu.o
 obj-$(CONFIG_MSM_IOMMU) += msm_iommu.o msm_iommu_dev.o
 obj-$(CONFIG_AMD_IOMMU) += amd_iommu.o amd_iommu_init.o
+obj-$(CONFIG_AMD_IOMMU_V2) += amd_iommu_v2.o
 obj-$(CONFIG_DMAR_TABLE) += dmar.o
 obj-$(CONFIG_INTEL_IOMMU) += iova.o intel-iommu.o
 obj-$(CONFIG_IRQ_REMAP) += intr_remapping.o
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 4ee277a8521a..cce1f03b8895 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -17,6 +17,7 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  */
 
+#include <linux/ratelimit.h>
 #include <linux/pci.h>
 #include <linux/pci-ats.h>
 #include <linux/bitmap.h>
@@ -28,6 +29,8 @@
 #include <linux/iommu.h>
 #include <linux/delay.h>
 #include <linux/amd-iommu.h>
+#include <linux/notifier.h>
+#include <linux/export.h>
 #include <asm/msidef.h>
 #include <asm/proto.h>
 #include <asm/iommu.h>
@@ -41,6 +44,24 @@
 
 #define LOOP_TIMEOUT	100000
 
+/*
+ * This bitmap is used to advertise the page sizes our hardware support
+ * to the IOMMU core, which will then use this information to split
+ * physically contiguous memory regions it is mapping into page sizes
+ * that we support.
+ *
+ * Traditionally the IOMMU core just handed us the mappings directly,
+ * after making sure the size is an order of a 4KiB page and that the
+ * mapping has natural alignment.
+ *
+ * To retain this behavior, we currently advertise that we support
+ * all page sizes that are an order of 4KiB.
+ *
+ * If at some point we'd like to utilize the IOMMU core's new behavior,
+ * we could change this to advertise the real page sizes we support.
+ */
+#define AMD_IOMMU_PGSIZES	(~0xFFFUL)
+
 static DEFINE_RWLOCK(amd_iommu_devtable_lock);
 
 /* A list of preallocated protection domains */
@@ -59,6 +80,9 @@ static struct protection_domain *pt_domain;
 
 static struct iommu_ops amd_iommu_ops;
 
+static ATOMIC_NOTIFIER_HEAD(ppr_notifier);
+int amd_iommu_max_glx_val = -1;
+
 /*
  * general struct to manage commands send to an IOMMU
  */
@@ -67,6 +91,7 @@ struct iommu_cmd {
 };
 
 static void update_domain(struct protection_domain *domain);
+static int __init alloc_passthrough_domain(void);
 
 /****************************************************************************
  *
@@ -147,6 +172,33 @@ static struct iommu_dev_data *get_dev_data(struct device *dev)
 	return dev->archdata.iommu;
 }
 
+static bool pci_iommuv2_capable(struct pci_dev *pdev)
+{
+	static const int caps[] = {
+		PCI_EXT_CAP_ID_ATS,
+		PCI_EXT_CAP_ID_PRI,
+		PCI_EXT_CAP_ID_PASID,
+	};
+	int i, pos;
+
+	for (i = 0; i < 3; ++i) {
+		pos = pci_find_ext_capability(pdev, caps[i]);
+		if (pos == 0)
+			return false;
+	}
+
+	return true;
+}
+
+static bool pdev_pri_erratum(struct pci_dev *pdev, u32 erratum)
+{
+	struct iommu_dev_data *dev_data;
+
+	dev_data = get_dev_data(&pdev->dev);
+
+	return dev_data->errata & (1 << erratum) ? true : false;
+}
+
 /*
  * In this function the list of preallocated protection domains is traversed to
  * find the domain for a specific device
@@ -204,6 +256,7 @@ static bool check_device(struct device *dev)
 
 static int iommu_init_device(struct device *dev)
 {
+	struct pci_dev *pdev = to_pci_dev(dev);
 	struct iommu_dev_data *dev_data;
 	u16 alias;
 
@@ -228,6 +281,13 @@ static int iommu_init_device(struct device *dev)
 		dev_data->alias_data = alias_data;
 	}
 
+	if (pci_iommuv2_capable(pdev)) {
+		struct amd_iommu *iommu;
+
+		iommu              = amd_iommu_rlookup_table[dev_data->devid];
+		dev_data->iommu_v2 = iommu->is_iommu_v2;
+	}
+
 	dev->archdata.iommu = dev_data;
 
 	return 0;
@@ -317,6 +377,11 @@ DECLARE_STATS_COUNTER(domain_flush_single);
 DECLARE_STATS_COUNTER(domain_flush_all);
 DECLARE_STATS_COUNTER(alloced_io_mem);
 DECLARE_STATS_COUNTER(total_map_requests);
+DECLARE_STATS_COUNTER(complete_ppr);
+DECLARE_STATS_COUNTER(invalidate_iotlb);
+DECLARE_STATS_COUNTER(invalidate_iotlb_all);
+DECLARE_STATS_COUNTER(pri_requests);
+
 
 static struct dentry *stats_dir;
 static struct dentry *de_fflush;
@@ -351,6 +416,10 @@ static void amd_iommu_stats_init(void)
 	amd_iommu_stats_add(&domain_flush_all);
 	amd_iommu_stats_add(&alloced_io_mem);
 	amd_iommu_stats_add(&total_map_requests);
+	amd_iommu_stats_add(&complete_ppr);
+	amd_iommu_stats_add(&invalidate_iotlb);
+	amd_iommu_stats_add(&invalidate_iotlb_all);
+	amd_iommu_stats_add(&pri_requests);
 }
 
 #endif
@@ -365,8 +434,8 @@ static void dump_dte_entry(u16 devid)
 {
 	int i;
 
-	for (i = 0; i < 8; ++i)
-		pr_err("AMD-Vi: DTE[%d]: %08x\n", i,
+	for (i = 0; i < 4; ++i)
+		pr_err("AMD-Vi: DTE[%d]: %016llx\n", i,
 			amd_iommu_dev_table[devid].data[i]);
 }
 
@@ -461,12 +530,84 @@ static void iommu_poll_events(struct amd_iommu *iommu)
 	spin_unlock_irqrestore(&iommu->lock, flags);
 }
 
+static void iommu_handle_ppr_entry(struct amd_iommu *iommu, u32 head)
+{
+	struct amd_iommu_fault fault;
+	volatile u64 *raw;
+	int i;
+
+	INC_STATS_COUNTER(pri_requests);
+
+	raw = (u64 *)(iommu->ppr_log + head);
+
+	/*
+	 * Hardware bug: Interrupt may arrive before the entry is written to
+	 * memory. If this happens we need to wait for the entry to arrive.
+	 */
+	for (i = 0; i < LOOP_TIMEOUT; ++i) {
+		if (PPR_REQ_TYPE(raw[0]) != 0)
+			break;
+		udelay(1);
+	}
+
+	if (PPR_REQ_TYPE(raw[0]) != PPR_REQ_FAULT) {
+		pr_err_ratelimited("AMD-Vi: Unknown PPR request received\n");
+		return;
+	}
+
+	fault.address   = raw[1];
+	fault.pasid     = PPR_PASID(raw[0]);
+	fault.device_id = PPR_DEVID(raw[0]);
+	fault.tag       = PPR_TAG(raw[0]);
+	fault.flags     = PPR_FLAGS(raw[0]);
+
+	/*
+	 * To detect the hardware bug we need to clear the entry
+	 * to back to zero.
+	 */
+	raw[0] = raw[1] = 0;
+
+	atomic_notifier_call_chain(&ppr_notifier, 0, &fault);
+}
+
+static void iommu_poll_ppr_log(struct amd_iommu *iommu)
+{
+	unsigned long flags;
+	u32 head, tail;
+
+	if (iommu->ppr_log == NULL)
+		return;
+
+	spin_lock_irqsave(&iommu->lock, flags);
+
+	head = readl(iommu->mmio_base + MMIO_PPR_HEAD_OFFSET);
+	tail = readl(iommu->mmio_base + MMIO_PPR_TAIL_OFFSET);
+
+	while (head != tail) {
+
+		/* Handle PPR entry */
+		iommu_handle_ppr_entry(iommu, head);
+
+		/* Update and refresh ring-buffer state*/
+		head = (head + PPR_ENTRY_SIZE) % PPR_LOG_SIZE;
+		writel(head, iommu->mmio_base + MMIO_PPR_HEAD_OFFSET);
+		tail = readl(iommu->mmio_base + MMIO_PPR_TAIL_OFFSET);
+	}
+
+	/* enable ppr interrupts again */
+	writel(MMIO_STATUS_PPR_INT_MASK, iommu->mmio_base + MMIO_STATUS_OFFSET);
+
+	spin_unlock_irqrestore(&iommu->lock, flags);
+}
+
 irqreturn_t amd_iommu_int_thread(int irq, void *data)
 {
 	struct amd_iommu *iommu;
 
-	for_each_iommu(iommu)
+	for_each_iommu(iommu) {
 		iommu_poll_events(iommu);
+		iommu_poll_ppr_log(iommu);
+	}
 
 	return IRQ_HANDLED;
 }
@@ -595,6 +736,60 @@ static void build_inv_iotlb_pages(struct iommu_cmd *cmd, u16 devid, int qdep,
 		cmd->data[2] |= CMD_INV_IOMMU_PAGES_SIZE_MASK;
 }
 
+static void build_inv_iommu_pasid(struct iommu_cmd *cmd, u16 domid, int pasid,
+				  u64 address, bool size)
+{
+	memset(cmd, 0, sizeof(*cmd));
+
+	address &= ~(0xfffULL);
+
+	cmd->data[0]  = pasid & PASID_MASK;
+	cmd->data[1]  = domid;
+	cmd->data[2]  = lower_32_bits(address);
+	cmd->data[3]  = upper_32_bits(address);
+	cmd->data[2] |= CMD_INV_IOMMU_PAGES_PDE_MASK;
+	cmd->data[2] |= CMD_INV_IOMMU_PAGES_GN_MASK;
+	if (size)
+		cmd->data[2] |= CMD_INV_IOMMU_PAGES_SIZE_MASK;
+	CMD_SET_TYPE(cmd, CMD_INV_IOMMU_PAGES);
+}
+
+static void build_inv_iotlb_pasid(struct iommu_cmd *cmd, u16 devid, int pasid,
+				  int qdep, u64 address, bool size)
+{
+	memset(cmd, 0, sizeof(*cmd));
+
+	address &= ~(0xfffULL);
+
+	cmd->data[0]  = devid;
+	cmd->data[0] |= (pasid & 0xff) << 16;
+	cmd->data[0] |= (qdep  & 0xff) << 24;
+	cmd->data[1]  = devid;
+	cmd->data[1] |= ((pasid >> 8) & 0xfff) << 16;
+	cmd->data[2]  = lower_32_bits(address);
+	cmd->data[2] |= CMD_INV_IOMMU_PAGES_GN_MASK;
+	cmd->data[3]  = upper_32_bits(address);
+	if (size)
+		cmd->data[2] |= CMD_INV_IOMMU_PAGES_SIZE_MASK;
+	CMD_SET_TYPE(cmd, CMD_INV_IOTLB_PAGES);
+}
+
+static void build_complete_ppr(struct iommu_cmd *cmd, u16 devid, int pasid,
+			       int status, int tag, bool gn)
+{
+	memset(cmd, 0, sizeof(*cmd));
+
+	cmd->data[0]  = devid;
+	if (gn) {
+		cmd->data[1]  = pasid & PASID_MASK;
+		cmd->data[2]  = CMD_INV_IOMMU_PAGES_GN_MASK;
+	}
+	cmd->data[3]  = tag & 0x1ff;
+	cmd->data[3] |= (status & PPR_STATUS_MASK) << PPR_STATUS_SHIFT;
+
+	CMD_SET_TYPE(cmd, CMD_COMPLETE_PPR);
+}
+
 static void build_inv_all(struct iommu_cmd *cmd)
 {
 	memset(cmd, 0, sizeof(*cmd));
@@ -1496,6 +1691,48 @@ static void free_pagetable(struct protection_domain *domain)
 	domain->pt_root = NULL;
 }
 
+static void free_gcr3_tbl_level1(u64 *tbl)
+{
+	u64 *ptr;
+	int i;
+
+	for (i = 0; i < 512; ++i) {
+		if (!(tbl[i] & GCR3_VALID))
+			continue;
+
+		ptr = __va(tbl[i] & PAGE_MASK);
+
+		free_page((unsigned long)ptr);
+	}
+}
+
+static void free_gcr3_tbl_level2(u64 *tbl)
+{
+	u64 *ptr;
+	int i;
+
+	for (i = 0; i < 512; ++i) {
+		if (!(tbl[i] & GCR3_VALID))
+			continue;
+
+		ptr = __va(tbl[i] & PAGE_MASK);
+
+		free_gcr3_tbl_level1(ptr);
+	}
+}
+
+static void free_gcr3_table(struct protection_domain *domain)
+{
+	if (domain->glx == 2)
+		free_gcr3_tbl_level2(domain->gcr3_tbl);
+	else if (domain->glx == 1)
+		free_gcr3_tbl_level1(domain->gcr3_tbl);
+	else if (domain->glx != 0)
+		BUG();
+
+	free_page((unsigned long)domain->gcr3_tbl);
+}
+
 /*
  * Free a domain, only used if something went wrong in the
  * allocation path and we need to free an already allocated page table
@@ -1582,20 +1819,52 @@ static bool dma_ops_domain(struct protection_domain *domain)
 
 static void set_dte_entry(u16 devid, struct protection_domain *domain, bool ats)
 {
-	u64 pte_root = virt_to_phys(domain->pt_root);
-	u32 flags = 0;
+	u64 pte_root = 0;
+	u64 flags = 0;
+
+	if (domain->mode != PAGE_MODE_NONE)
+		pte_root = virt_to_phys(domain->pt_root);
 
 	pte_root |= (domain->mode & DEV_ENTRY_MODE_MASK)
 		    << DEV_ENTRY_MODE_SHIFT;
 	pte_root |= IOMMU_PTE_IR | IOMMU_PTE_IW | IOMMU_PTE_P | IOMMU_PTE_TV;
 
+	flags = amd_iommu_dev_table[devid].data[1];
+
 	if (ats)
 		flags |= DTE_FLAG_IOTLB;
 
-	amd_iommu_dev_table[devid].data[3] |= flags;
-	amd_iommu_dev_table[devid].data[2]  = domain->id;
-	amd_iommu_dev_table[devid].data[1]  = upper_32_bits(pte_root);
-	amd_iommu_dev_table[devid].data[0]  = lower_32_bits(pte_root);
+	if (domain->flags & PD_IOMMUV2_MASK) {
+		u64 gcr3 = __pa(domain->gcr3_tbl);
+		u64 glx  = domain->glx;
+		u64 tmp;
+
+		pte_root |= DTE_FLAG_GV;
+		pte_root |= (glx & DTE_GLX_MASK) << DTE_GLX_SHIFT;
+
+		/* First mask out possible old values for GCR3 table */
+		tmp = DTE_GCR3_VAL_B(~0ULL) << DTE_GCR3_SHIFT_B;
+		flags    &= ~tmp;
+
+		tmp = DTE_GCR3_VAL_C(~0ULL) << DTE_GCR3_SHIFT_C;
+		flags    &= ~tmp;
+
+		/* Encode GCR3 table into DTE */
+		tmp = DTE_GCR3_VAL_A(gcr3) << DTE_GCR3_SHIFT_A;
+		pte_root |= tmp;
+
+		tmp = DTE_GCR3_VAL_B(gcr3) << DTE_GCR3_SHIFT_B;
+		flags    |= tmp;
+
+		tmp = DTE_GCR3_VAL_C(gcr3) << DTE_GCR3_SHIFT_C;
+		flags    |= tmp;
+	}
+
+	flags &= ~(0xffffUL);
+	flags |= domain->id;
+
+	amd_iommu_dev_table[devid].data[1]  = flags;
+	amd_iommu_dev_table[devid].data[0]  = pte_root;
 }
 
 static void clear_dte_entry(u16 devid)
@@ -1603,7 +1872,6 @@ static void clear_dte_entry(u16 devid)
 	/* remove entry from the device table seen by the hardware */
 	amd_iommu_dev_table[devid].data[0] = IOMMU_PTE_P | IOMMU_PTE_TV;
 	amd_iommu_dev_table[devid].data[1] = 0;
-	amd_iommu_dev_table[devid].data[2] = 0;
 
 	amd_iommu_apply_erratum_63(devid);
 }
@@ -1696,6 +1964,93 @@ out_unlock:
 	return ret;
 }
 
+
+static void pdev_iommuv2_disable(struct pci_dev *pdev)
+{
+	pci_disable_ats(pdev);
+	pci_disable_pri(pdev);
+	pci_disable_pasid(pdev);
+}
+
+/* FIXME: Change generic reset-function to do the same */
+static int pri_reset_while_enabled(struct pci_dev *pdev)
+{
+	u16 control;
+	int pos;
+
+	pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PRI);
+	if (!pos)
+		return -EINVAL;
+
+	pci_read_config_word(pdev, pos + PCI_PRI_CTRL, &control);
+	control |= PCI_PRI_CTRL_RESET;
+	pci_write_config_word(pdev, pos + PCI_PRI_CTRL, control);
+
+	return 0;
+}
+
+static int pdev_iommuv2_enable(struct pci_dev *pdev)
+{
+	bool reset_enable;
+	int reqs, ret;
+
+	/* FIXME: Hardcode number of outstanding requests for now */
+	reqs = 32;
+	if (pdev_pri_erratum(pdev, AMD_PRI_DEV_ERRATUM_LIMIT_REQ_ONE))
+		reqs = 1;
+	reset_enable = pdev_pri_erratum(pdev, AMD_PRI_DEV_ERRATUM_ENABLE_RESET);
+
+	/* Only allow access to user-accessible pages */
+	ret = pci_enable_pasid(pdev, 0);
+	if (ret)
+		goto out_err;
+
+	/* First reset the PRI state of the device */
+	ret = pci_reset_pri(pdev);
+	if (ret)
+		goto out_err;
+
+	/* Enable PRI */
+	ret = pci_enable_pri(pdev, reqs);
+	if (ret)
+		goto out_err;
+
+	if (reset_enable) {
+		ret = pri_reset_while_enabled(pdev);
+		if (ret)
+			goto out_err;
+	}
+
+	ret = pci_enable_ats(pdev, PAGE_SHIFT);
+	if (ret)
+		goto out_err;
+
+	return 0;
+
+out_err:
+	pci_disable_pri(pdev);
+	pci_disable_pasid(pdev);
+
+	return ret;
+}
+
+/* FIXME: Move this to PCI code */
+#define PCI_PRI_TLP_OFF		(1 << 2)
+
+bool pci_pri_tlp_required(struct pci_dev *pdev)
+{
+	u16 control;
+	int pos;
+
+	pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PRI);
+	if (!pos)
+		return false;
+
+	pci_read_config_word(pdev, pos + PCI_PRI_CTRL, &control);
+
+	return (control & PCI_PRI_TLP_OFF) ? true : false;
+}
+
 /*
  * If a device is not yet associated with a domain, this function does
  * assigns it visible for the hardware
@@ -1710,7 +2065,18 @@ static int attach_device(struct device *dev,
 
 	dev_data = get_dev_data(dev);
 
-	if (amd_iommu_iotlb_sup && pci_enable_ats(pdev, PAGE_SHIFT) == 0) {
+	if (domain->flags & PD_IOMMUV2_MASK) {
+		if (!dev_data->iommu_v2 || !dev_data->passthrough)
+			return -EINVAL;
+
+		if (pdev_iommuv2_enable(pdev) != 0)
+			return -EINVAL;
+
+		dev_data->ats.enabled = true;
+		dev_data->ats.qdep    = pci_ats_queue_depth(pdev);
+		dev_data->pri_tlp     = pci_pri_tlp_required(pdev);
+	} else if (amd_iommu_iotlb_sup &&
+		   pci_enable_ats(pdev, PAGE_SHIFT) == 0) {
 		dev_data->ats.enabled = true;
 		dev_data->ats.qdep    = pci_ats_queue_depth(pdev);
 	}
@@ -1760,7 +2126,7 @@ static void __detach_device(struct iommu_dev_data *dev_data)
 	 * passthrough domain if it is detached from any other domain.
 	 * Make sure we can deassign from the pt_domain itself.
 	 */
-	if (iommu_pass_through &&
+	if (dev_data->passthrough &&
 	    (dev_data->domain == NULL && domain != pt_domain))
 		__attach_device(dev_data, pt_domain);
 }
@@ -1770,20 +2136,24 @@ static void __detach_device(struct iommu_dev_data *dev_data)
  */
 static void detach_device(struct device *dev)
 {
+	struct protection_domain *domain;
 	struct iommu_dev_data *dev_data;
 	unsigned long flags;
 
 	dev_data = get_dev_data(dev);
+	domain   = dev_data->domain;
 
 	/* lock device table */
 	write_lock_irqsave(&amd_iommu_devtable_lock, flags);
 	__detach_device(dev_data);
 	write_unlock_irqrestore(&amd_iommu_devtable_lock, flags);
 
-	if (dev_data->ats.enabled) {
+	if (domain->flags & PD_IOMMUV2_MASK)
+		pdev_iommuv2_disable(to_pci_dev(dev));
+	else if (dev_data->ats.enabled)
 		pci_disable_ats(to_pci_dev(dev));
-		dev_data->ats.enabled = false;
-	}
+
+	dev_data->ats.enabled = false;
 }
 
 /*
@@ -1818,18 +2188,20 @@ static struct protection_domain *domain_for_device(struct device *dev)
 static int device_change_notifier(struct notifier_block *nb,
 				  unsigned long action, void *data)
 {
-	struct device *dev = data;
-	u16 devid;
-	struct protection_domain *domain;
 	struct dma_ops_domain *dma_domain;
+	struct protection_domain *domain;
+	struct iommu_dev_data *dev_data;
+	struct device *dev = data;
 	struct amd_iommu *iommu;
 	unsigned long flags;
+	u16 devid;
 
 	if (!check_device(dev))
 		return 0;
 
-	devid  = get_device_id(dev);
-	iommu  = amd_iommu_rlookup_table[devid];
+	devid    = get_device_id(dev);
+	iommu    = amd_iommu_rlookup_table[devid];
+	dev_data = get_dev_data(dev);
 
 	switch (action) {
 	case BUS_NOTIFY_UNBOUND_DRIVER:
@@ -1838,7 +2210,7 @@ static int device_change_notifier(struct notifier_block *nb,
 
 		if (!domain)
 			goto out;
-		if (iommu_pass_through)
+		if (dev_data->passthrough)
 			break;
 		detach_device(dev);
 		break;
@@ -2434,8 +2806,9 @@ static int amd_iommu_dma_supported(struct device *dev, u64 mask)
  */
 static void prealloc_protection_domains(void)
 {
-	struct pci_dev *dev = NULL;
+	struct iommu_dev_data *dev_data;
 	struct dma_ops_domain *dma_dom;
+	struct pci_dev *dev = NULL;
 	u16 devid;
 
 	for_each_pci_dev(dev) {
@@ -2444,6 +2817,16 @@ static void prealloc_protection_domains(void)
 		if (!check_device(&dev->dev))
 			continue;
 
+		dev_data = get_dev_data(&dev->dev);
+		if (!amd_iommu_force_isolation && dev_data->iommu_v2) {
+			/* Make sure passthrough domain is allocated */
+			alloc_passthrough_domain();
+			dev_data->passthrough = true;
+			attach_device(&dev->dev, pt_domain);
+			pr_info("AMD-Vi: Using passthough domain for device %s\n",
+				dev_name(&dev->dev));
+		}
+
 		/* Is there already any domain for it? */
 		if (domain_for_device(&dev->dev))
 			continue;
@@ -2474,6 +2857,7 @@ static struct dma_map_ops amd_iommu_dma_ops = {
 
 static unsigned device_dma_ops_init(void)
 {
+	struct iommu_dev_data *dev_data;
 	struct pci_dev *pdev = NULL;
 	unsigned unhandled = 0;
 
@@ -2483,7 +2867,12 @@ static unsigned device_dma_ops_init(void)
 			continue;
 		}
 
-		pdev->dev.archdata.dma_ops = &amd_iommu_dma_ops;
+		dev_data = get_dev_data(&pdev->dev);
+
+		if (!dev_data->passthrough)
+			pdev->dev.archdata.dma_ops = &amd_iommu_dma_ops;
+		else
+			pdev->dev.archdata.dma_ops = &nommu_dma_ops;
 	}
 
 	return unhandled;
@@ -2610,6 +2999,20 @@ out_err:
 	return NULL;
 }
 
+static int __init alloc_passthrough_domain(void)
+{
+	if (pt_domain != NULL)
+		return 0;
+
+	/* allocate passthrough domain */
+	pt_domain = protection_domain_alloc();
+	if (!pt_domain)
+		return -ENOMEM;
+
+	pt_domain->mode = PAGE_MODE_NONE;
+
+	return 0;
+}
 static int amd_iommu_domain_init(struct iommu_domain *dom)
 {
 	struct protection_domain *domain;
@@ -2623,6 +3026,8 @@ static int amd_iommu_domain_init(struct iommu_domain *dom)
 	if (!domain->pt_root)
 		goto out_free;
 
+	domain->iommu_domain = dom;
+
 	dom->priv = domain;
 
 	return 0;
@@ -2645,7 +3050,11 @@ static void amd_iommu_domain_destroy(struct iommu_domain *dom)
 
 	BUG_ON(domain->dev_cnt != 0);
 
-	free_pagetable(domain);
+	if (domain->mode != PAGE_MODE_NONE)
+		free_pagetable(domain);
+
+	if (domain->flags & PD_IOMMUV2_MASK)
+		free_gcr3_table(domain);
 
 	protection_domain_free(domain);
 
@@ -2702,13 +3111,15 @@ static int amd_iommu_attach_device(struct iommu_domain *dom,
 }
 
 static int amd_iommu_map(struct iommu_domain *dom, unsigned long iova,
-			 phys_addr_t paddr, int gfp_order, int iommu_prot)
+			 phys_addr_t paddr, size_t page_size, int iommu_prot)
 {
-	unsigned long page_size = 0x1000UL << gfp_order;
 	struct protection_domain *domain = dom->priv;
 	int prot = 0;
 	int ret;
 
+	if (domain->mode == PAGE_MODE_NONE)
+		return -EINVAL;
+
 	if (iommu_prot & IOMMU_READ)
 		prot |= IOMMU_PROT_IR;
 	if (iommu_prot & IOMMU_WRITE)
@@ -2721,13 +3132,14 @@ static int amd_iommu_map(struct iommu_domain *dom, unsigned long iova,
 	return ret;
 }
 
-static int amd_iommu_unmap(struct iommu_domain *dom, unsigned long iova,
-			   int gfp_order)
+static size_t amd_iommu_unmap(struct iommu_domain *dom, unsigned long iova,
+			   size_t page_size)
 {
 	struct protection_domain *domain = dom->priv;
-	unsigned long page_size, unmap_size;
+	size_t unmap_size;
 
-	page_size  = 0x1000UL << gfp_order;
+	if (domain->mode == PAGE_MODE_NONE)
+		return -EINVAL;
 
 	mutex_lock(&domain->api_lock);
 	unmap_size = iommu_unmap_page(domain, iova, page_size);
@@ -2735,7 +3147,7 @@ static int amd_iommu_unmap(struct iommu_domain *dom, unsigned long iova,
 
 	domain_flush_tlb_pde(domain);
 
-	return get_order(unmap_size);
+	return unmap_size;
 }
 
 static phys_addr_t amd_iommu_iova_to_phys(struct iommu_domain *dom,
@@ -2746,6 +3158,9 @@ static phys_addr_t amd_iommu_iova_to_phys(struct iommu_domain *dom,
 	phys_addr_t paddr;
 	u64 *pte, __pte;
 
+	if (domain->mode == PAGE_MODE_NONE)
+		return iova;
+
 	pte = fetch_pte(domain, iova);
 
 	if (!pte || !IOMMU_PTE_PRESENT(*pte))
@@ -2773,6 +3188,26 @@ static int amd_iommu_domain_has_cap(struct iommu_domain *domain,
 	return 0;
 }
 
+static int amd_iommu_device_group(struct device *dev, unsigned int *groupid)
+{
+	struct iommu_dev_data *dev_data = dev->archdata.iommu;
+	struct pci_dev *pdev = to_pci_dev(dev);
+	u16 devid;
+
+	if (!dev_data)
+		return -ENODEV;
+
+	if (pdev->is_virtfn || !iommu_group_mf)
+		devid = dev_data->devid;
+	else
+		devid = calc_devid(pdev->bus->number,
+				   PCI_DEVFN(PCI_SLOT(pdev->devfn), 0));
+
+	*groupid = amd_iommu_alias_table[devid];
+
+	return 0;
+}
+
 static struct iommu_ops amd_iommu_ops = {
 	.domain_init = amd_iommu_domain_init,
 	.domain_destroy = amd_iommu_domain_destroy,
@@ -2782,6 +3217,8 @@ static struct iommu_ops amd_iommu_ops = {
 	.unmap = amd_iommu_unmap,
 	.iova_to_phys = amd_iommu_iova_to_phys,
 	.domain_has_cap = amd_iommu_domain_has_cap,
+	.device_group = amd_iommu_device_group,
+	.pgsize_bitmap	= AMD_IOMMU_PGSIZES,
 };
 
 /*****************************************************************************
@@ -2796,21 +3233,23 @@ static struct iommu_ops amd_iommu_ops = {
 
 int __init amd_iommu_init_passthrough(void)
 {
-	struct amd_iommu *iommu;
+	struct iommu_dev_data *dev_data;
 	struct pci_dev *dev = NULL;
+	struct amd_iommu *iommu;
 	u16 devid;
+	int ret;
 
-	/* allocate passthrough domain */
-	pt_domain = protection_domain_alloc();
-	if (!pt_domain)
-		return -ENOMEM;
-
-	pt_domain->mode |= PAGE_MODE_NONE;
+	ret = alloc_passthrough_domain();
+	if (ret)
+		return ret;
 
 	for_each_pci_dev(dev) {
 		if (!check_device(&dev->dev))
 			continue;
 
+		dev_data = get_dev_data(&dev->dev);
+		dev_data->passthrough = true;
+
 		devid = get_device_id(&dev->dev);
 
 		iommu = amd_iommu_rlookup_table[devid];
@@ -2820,7 +3259,375 @@ int __init amd_iommu_init_passthrough(void)
 		attach_device(&dev->dev, pt_domain);
 	}
 
+	amd_iommu_stats_init();
+
 	pr_info("AMD-Vi: Initialized for Passthrough Mode\n");
 
 	return 0;
 }
+
+/* IOMMUv2 specific functions */
+int amd_iommu_register_ppr_notifier(struct notifier_block *nb)
+{
+	return atomic_notifier_chain_register(&ppr_notifier, nb);
+}
+EXPORT_SYMBOL(amd_iommu_register_ppr_notifier);
+
+int amd_iommu_unregister_ppr_notifier(struct notifier_block *nb)
+{
+	return atomic_notifier_chain_unregister(&ppr_notifier, nb);
+}
+EXPORT_SYMBOL(amd_iommu_unregister_ppr_notifier);
+
+void amd_iommu_domain_direct_map(struct iommu_domain *dom)
+{
+	struct protection_domain *domain = dom->priv;
+	unsigned long flags;
+
+	spin_lock_irqsave(&domain->lock, flags);
+
+	/* Update data structure */
+	domain->mode    = PAGE_MODE_NONE;
+	domain->updated = true;
+
+	/* Make changes visible to IOMMUs */
+	update_domain(domain);
+
+	/* Page-table is not visible to IOMMU anymore, so free it */
+	free_pagetable(domain);
+
+	spin_unlock_irqrestore(&domain->lock, flags);
+}
+EXPORT_SYMBOL(amd_iommu_domain_direct_map);
+
+int amd_iommu_domain_enable_v2(struct iommu_domain *dom, int pasids)
+{
+	struct protection_domain *domain = dom->priv;
+	unsigned long flags;
+	int levels, ret;
+
+	if (pasids <= 0 || pasids > (PASID_MASK + 1))
+		return -EINVAL;
+
+	/* Number of GCR3 table levels required */
+	for (levels = 0; (pasids - 1) & ~0x1ff; pasids >>= 9)
+		levels += 1;
+
+	if (levels > amd_iommu_max_glx_val)
+		return -EINVAL;
+
+	spin_lock_irqsave(&domain->lock, flags);
+
+	/*
+	 * Save us all sanity checks whether devices already in the
+	 * domain support IOMMUv2. Just force that the domain has no
+	 * devices attached when it is switched into IOMMUv2 mode.
+	 */
+	ret = -EBUSY;
+	if (domain->dev_cnt > 0 || domain->flags & PD_IOMMUV2_MASK)
+		goto out;
+
+	ret = -ENOMEM;
+	domain->gcr3_tbl = (void *)get_zeroed_page(GFP_ATOMIC);
+	if (domain->gcr3_tbl == NULL)
+		goto out;
+
+	domain->glx      = levels;
+	domain->flags   |= PD_IOMMUV2_MASK;
+	domain->updated  = true;
+
+	update_domain(domain);
+
+	ret = 0;
+
+out:
+	spin_unlock_irqrestore(&domain->lock, flags);
+
+	return ret;
+}
+EXPORT_SYMBOL(amd_iommu_domain_enable_v2);
+
+static int __flush_pasid(struct protection_domain *domain, int pasid,
+			 u64 address, bool size)
+{
+	struct iommu_dev_data *dev_data;
+	struct iommu_cmd cmd;
+	int i, ret;
+
+	if (!(domain->flags & PD_IOMMUV2_MASK))
+		return -EINVAL;
+
+	build_inv_iommu_pasid(&cmd, domain->id, pasid, address, size);
+
+	/*
+	 * IOMMU TLB needs to be flushed before Device TLB to
+	 * prevent device TLB refill from IOMMU TLB
+	 */
+	for (i = 0; i < amd_iommus_present; ++i) {
+		if (domain->dev_iommu[i] == 0)
+			continue;
+
+		ret = iommu_queue_command(amd_iommus[i], &cmd);
+		if (ret != 0)
+			goto out;
+	}
+
+	/* Wait until IOMMU TLB flushes are complete */
+	domain_flush_complete(domain);
+
+	/* Now flush device TLBs */
+	list_for_each_entry(dev_data, &domain->dev_list, list) {
+		struct amd_iommu *iommu;
+		int qdep;
+
+		BUG_ON(!dev_data->ats.enabled);
+
+		qdep  = dev_data->ats.qdep;
+		iommu = amd_iommu_rlookup_table[dev_data->devid];
+
+		build_inv_iotlb_pasid(&cmd, dev_data->devid, pasid,
+				      qdep, address, size);
+
+		ret = iommu_queue_command(iommu, &cmd);
+		if (ret != 0)
+			goto out;
+	}
+
+	/* Wait until all device TLBs are flushed */
+	domain_flush_complete(domain);
+
+	ret = 0;
+
+out:
+
+	return ret;
+}
+
+static int __amd_iommu_flush_page(struct protection_domain *domain, int pasid,
+				  u64 address)
+{
+	INC_STATS_COUNTER(invalidate_iotlb);
+
+	return __flush_pasid(domain, pasid, address, false);
+}
+
+int amd_iommu_flush_page(struct iommu_domain *dom, int pasid,
+			 u64 address)
+{
+	struct protection_domain *domain = dom->priv;
+	unsigned long flags;
+	int ret;
+
+	spin_lock_irqsave(&domain->lock, flags);
+	ret = __amd_iommu_flush_page(domain, pasid, address);
+	spin_unlock_irqrestore(&domain->lock, flags);
+
+	return ret;
+}
+EXPORT_SYMBOL(amd_iommu_flush_page);
+
+static int __amd_iommu_flush_tlb(struct protection_domain *domain, int pasid)
+{
+	INC_STATS_COUNTER(invalidate_iotlb_all);
+
+	return __flush_pasid(domain, pasid, CMD_INV_IOMMU_ALL_PAGES_ADDRESS,
+			     true);
+}
+
+int amd_iommu_flush_tlb(struct iommu_domain *dom, int pasid)
+{
+	struct protection_domain *domain = dom->priv;
+	unsigned long flags;
+	int ret;
+
+	spin_lock_irqsave(&domain->lock, flags);
+	ret = __amd_iommu_flush_tlb(domain, pasid);
+	spin_unlock_irqrestore(&domain->lock, flags);
+
+	return ret;
+}
+EXPORT_SYMBOL(amd_iommu_flush_tlb);
+
+static u64 *__get_gcr3_pte(u64 *root, int level, int pasid, bool alloc)
+{
+	int index;
+	u64 *pte;
+
+	while (true) {
+
+		index = (pasid >> (9 * level)) & 0x1ff;
+		pte   = &root[index];
+
+		if (level == 0)
+			break;
+
+		if (!(*pte & GCR3_VALID)) {
+			if (!alloc)
+				return NULL;
+
+			root = (void *)get_zeroed_page(GFP_ATOMIC);
+			if (root == NULL)
+				return NULL;
+
+			*pte = __pa(root) | GCR3_VALID;
+		}
+
+		root = __va(*pte & PAGE_MASK);
+
+		level -= 1;
+	}
+
+	return pte;
+}
+
+static int __set_gcr3(struct protection_domain *domain, int pasid,
+		      unsigned long cr3)
+{
+	u64 *pte;
+
+	if (domain->mode != PAGE_MODE_NONE)
+		return -EINVAL;
+
+	pte = __get_gcr3_pte(domain->gcr3_tbl, domain->glx, pasid, true);
+	if (pte == NULL)
+		return -ENOMEM;
+
+	*pte = (cr3 & PAGE_MASK) | GCR3_VALID;
+
+	return __amd_iommu_flush_tlb(domain, pasid);
+}
+
+static int __clear_gcr3(struct protection_domain *domain, int pasid)
+{
+	u64 *pte;
+
+	if (domain->mode != PAGE_MODE_NONE)
+		return -EINVAL;
+
+	pte = __get_gcr3_pte(domain->gcr3_tbl, domain->glx, pasid, false);
+	if (pte == NULL)
+		return 0;
+
+	*pte = 0;
+
+	return __amd_iommu_flush_tlb(domain, pasid);
+}
+
+int amd_iommu_domain_set_gcr3(struct iommu_domain *dom, int pasid,
+			      unsigned long cr3)
+{
+	struct protection_domain *domain = dom->priv;
+	unsigned long flags;
+	int ret;
+
+	spin_lock_irqsave(&domain->lock, flags);
+	ret = __set_gcr3(domain, pasid, cr3);
+	spin_unlock_irqrestore(&domain->lock, flags);
+
+	return ret;
+}
+EXPORT_SYMBOL(amd_iommu_domain_set_gcr3);
+
+int amd_iommu_domain_clear_gcr3(struct iommu_domain *dom, int pasid)
+{
+	struct protection_domain *domain = dom->priv;
+	unsigned long flags;
+	int ret;
+
+	spin_lock_irqsave(&domain->lock, flags);
+	ret = __clear_gcr3(domain, pasid);
+	spin_unlock_irqrestore(&domain->lock, flags);
+
+	return ret;
+}
+EXPORT_SYMBOL(amd_iommu_domain_clear_gcr3);
+
+int amd_iommu_complete_ppr(struct pci_dev *pdev, int pasid,
+			   int status, int tag)
+{
+	struct iommu_dev_data *dev_data;
+	struct amd_iommu *iommu;
+	struct iommu_cmd cmd;
+
+	INC_STATS_COUNTER(complete_ppr);
+
+	dev_data = get_dev_data(&pdev->dev);
+	iommu    = amd_iommu_rlookup_table[dev_data->devid];
+
+	build_complete_ppr(&cmd, dev_data->devid, pasid, status,
+			   tag, dev_data->pri_tlp);
+
+	return iommu_queue_command(iommu, &cmd);
+}
+EXPORT_SYMBOL(amd_iommu_complete_ppr);
+
+struct iommu_domain *amd_iommu_get_v2_domain(struct pci_dev *pdev)
+{
+	struct protection_domain *domain;
+
+	domain = get_domain(&pdev->dev);
+	if (IS_ERR(domain))
+		return NULL;
+
+	/* Only return IOMMUv2 domains */
+	if (!(domain->flags & PD_IOMMUV2_MASK))
+		return NULL;
+
+	return domain->iommu_domain;
+}
+EXPORT_SYMBOL(amd_iommu_get_v2_domain);
+
+void amd_iommu_enable_device_erratum(struct pci_dev *pdev, u32 erratum)
+{
+	struct iommu_dev_data *dev_data;
+
+	if (!amd_iommu_v2_supported())
+		return;
+
+	dev_data = get_dev_data(&pdev->dev);
+	dev_data->errata |= (1 << erratum);
+}
+EXPORT_SYMBOL(amd_iommu_enable_device_erratum);
+
+int amd_iommu_device_info(struct pci_dev *pdev,
+                          struct amd_iommu_device_info *info)
+{
+	int max_pasids;
+	int pos;
+
+	if (pdev == NULL || info == NULL)
+		return -EINVAL;
+
+	if (!amd_iommu_v2_supported())
+		return -EINVAL;
+
+	memset(info, 0, sizeof(*info));
+
+	pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_ATS);
+	if (pos)
+		info->flags |= AMD_IOMMU_DEVICE_FLAG_ATS_SUP;
+
+	pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PRI);
+	if (pos)
+		info->flags |= AMD_IOMMU_DEVICE_FLAG_PRI_SUP;
+
+	pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PASID);
+	if (pos) {
+		int features;
+
+		max_pasids = 1 << (9 * (amd_iommu_max_glx_val + 1));
+		max_pasids = min(max_pasids, (1 << 20));
+
+		info->flags |= AMD_IOMMU_DEVICE_FLAG_PASID_SUP;
+		info->max_pasids = min(pci_max_pasids(pdev), max_pasids);
+
+		features = pci_pasid_features(pdev);
+		if (features & PCI_PASID_CAP_EXEC)
+			info->flags |= AMD_IOMMU_DEVICE_FLAG_EXEC_SUP;
+		if (features & PCI_PASID_CAP_PRIV)
+			info->flags |= AMD_IOMMU_DEVICE_FLAG_PRIV_SUP;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL(amd_iommu_device_info);
diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c
index 82d2410f4205..bdea288dc185 100644
--- a/drivers/iommu/amd_iommu_init.c
+++ b/drivers/iommu/amd_iommu_init.c
@@ -25,6 +25,7 @@
 #include <linux/interrupt.h>
 #include <linux/msi.h>
 #include <linux/amd-iommu.h>
+#include <linux/export.h>
 #include <asm/pci-direct.h>
 #include <asm/iommu.h>
 #include <asm/gart.h>
@@ -141,6 +142,12 @@ int amd_iommus_present;
 bool amd_iommu_np_cache __read_mostly;
 bool amd_iommu_iotlb_sup __read_mostly = true;
 
+u32 amd_iommu_max_pasids __read_mostly = ~0;
+
+bool amd_iommu_v2_present __read_mostly;
+
+bool amd_iommu_force_isolation __read_mostly;
+
 /*
  * The ACPI table parsing functions set this variable on an error
  */
@@ -299,6 +306,16 @@ static void iommu_feature_disable(struct amd_iommu *iommu, u8 bit)
 	writel(ctrl, iommu->mmio_base + MMIO_CONTROL_OFFSET);
 }
 
+static void iommu_set_inv_tlb_timeout(struct amd_iommu *iommu, int timeout)
+{
+	u32 ctrl;
+
+	ctrl = readl(iommu->mmio_base + MMIO_CONTROL_OFFSET);
+	ctrl &= ~CTRL_INV_TO_MASK;
+	ctrl |= (timeout << CONTROL_INV_TIMEOUT) & CTRL_INV_TO_MASK;
+	writel(ctrl, iommu->mmio_base + MMIO_CONTROL_OFFSET);
+}
+
 /* Function to enable the hardware */
 static void iommu_enable(struct amd_iommu *iommu)
 {
@@ -581,21 +598,69 @@ static void __init free_event_buffer(struct amd_iommu *iommu)
 	free_pages((unsigned long)iommu->evt_buf, get_order(EVT_BUFFER_SIZE));
 }
 
+/* allocates the memory where the IOMMU will log its events to */
+static u8 * __init alloc_ppr_log(struct amd_iommu *iommu)
+{
+	iommu->ppr_log = (u8 *)__get_free_pages(GFP_KERNEL | __GFP_ZERO,
+						get_order(PPR_LOG_SIZE));
+
+	if (iommu->ppr_log == NULL)
+		return NULL;
+
+	return iommu->ppr_log;
+}
+
+static void iommu_enable_ppr_log(struct amd_iommu *iommu)
+{
+	u64 entry;
+
+	if (iommu->ppr_log == NULL)
+		return;
+
+	entry = (u64)virt_to_phys(iommu->ppr_log) | PPR_LOG_SIZE_512;
+
+	memcpy_toio(iommu->mmio_base + MMIO_PPR_LOG_OFFSET,
+		    &entry, sizeof(entry));
+
+	/* set head and tail to zero manually */
+	writel(0x00, iommu->mmio_base + MMIO_PPR_HEAD_OFFSET);
+	writel(0x00, iommu->mmio_base + MMIO_PPR_TAIL_OFFSET);
+
+	iommu_feature_enable(iommu, CONTROL_PPFLOG_EN);
+	iommu_feature_enable(iommu, CONTROL_PPR_EN);
+}
+
+static void __init free_ppr_log(struct amd_iommu *iommu)
+{
+	if (iommu->ppr_log == NULL)
+		return;
+
+	free_pages((unsigned long)iommu->ppr_log, get_order(PPR_LOG_SIZE));
+}
+
+static void iommu_enable_gt(struct amd_iommu *iommu)
+{
+	if (!iommu_feature(iommu, FEATURE_GT))
+		return;
+
+	iommu_feature_enable(iommu, CONTROL_GT_EN);
+}
+
 /* sets a specific bit in the device table entry. */
 static void set_dev_entry_bit(u16 devid, u8 bit)
 {
-	int i = (bit >> 5) & 0x07;
-	int _bit = bit & 0x1f;
+	int i = (bit >> 6) & 0x03;
+	int _bit = bit & 0x3f;
 
-	amd_iommu_dev_table[devid].data[i] |= (1 << _bit);
+	amd_iommu_dev_table[devid].data[i] |= (1UL << _bit);
 }
 
 static int get_dev_entry_bit(u16 devid, u8 bit)
 {
-	int i = (bit >> 5) & 0x07;
-	int _bit = bit & 0x1f;
+	int i = (bit >> 6) & 0x03;
+	int _bit = bit & 0x3f;
 
-	return (amd_iommu_dev_table[devid].data[i] & (1 << _bit)) >> _bit;
+	return (amd_iommu_dev_table[devid].data[i] & (1UL << _bit)) >> _bit;
 }
 
 
@@ -699,6 +764,32 @@ static void __init init_iommu_from_pci(struct amd_iommu *iommu)
 
 	iommu->features = ((u64)high << 32) | low;
 
+	if (iommu_feature(iommu, FEATURE_GT)) {
+		int glxval;
+		u32 pasids;
+		u64 shift;
+
+		shift   = iommu->features & FEATURE_PASID_MASK;
+		shift >>= FEATURE_PASID_SHIFT;
+		pasids  = (1 << shift);
+
+		amd_iommu_max_pasids = min(amd_iommu_max_pasids, pasids);
+
+		glxval   = iommu->features & FEATURE_GLXVAL_MASK;
+		glxval >>= FEATURE_GLXVAL_SHIFT;
+
+		if (amd_iommu_max_glx_val == -1)
+			amd_iommu_max_glx_val = glxval;
+		else
+			amd_iommu_max_glx_val = min(amd_iommu_max_glx_val, glxval);
+	}
+
+	if (iommu_feature(iommu, FEATURE_GT) &&
+	    iommu_feature(iommu, FEATURE_PPR)) {
+		iommu->is_iommu_v2   = true;
+		amd_iommu_v2_present = true;
+	}
+
 	if (!is_rd890_iommu(iommu->dev))
 		return;
 
@@ -901,6 +992,7 @@ static void __init free_iommu_one(struct amd_iommu *iommu)
 {
 	free_command_buffer(iommu);
 	free_event_buffer(iommu);
+	free_ppr_log(iommu);
 	iommu_unmap_mmio_space(iommu);
 }
 
@@ -964,6 +1056,12 @@ static int __init init_iommu_one(struct amd_iommu *iommu, struct ivhd_header *h)
 	init_iommu_from_acpi(iommu, h);
 	init_iommu_devices(iommu);
 
+	if (iommu_feature(iommu, FEATURE_PPR)) {
+		iommu->ppr_log = alloc_ppr_log(iommu);
+		if (!iommu->ppr_log)
+			return -ENOMEM;
+	}
+
 	if (iommu->cap & (1UL << IOMMU_CAP_NPCACHE))
 		amd_iommu_np_cache = true;
 
@@ -1050,6 +1148,9 @@ static int iommu_setup_msi(struct amd_iommu *iommu)
 	iommu->int_enabled = true;
 	iommu_feature_enable(iommu, CONTROL_EVT_INT_EN);
 
+	if (iommu->ppr_log != NULL)
+		iommu_feature_enable(iommu, CONTROL_PPFINT_EN);
+
 	return 0;
 }
 
@@ -1209,6 +1310,9 @@ static void iommu_init_flags(struct amd_iommu *iommu)
 	 * make IOMMU memory accesses cache coherent
 	 */
 	iommu_feature_enable(iommu, CONTROL_COHERENT_EN);
+
+	/* Set IOTLB invalidation timeout to 1s */
+	iommu_set_inv_tlb_timeout(iommu, CTRL_INV_TO_1S);
 }
 
 static void iommu_apply_resume_quirks(struct amd_iommu *iommu)
@@ -1274,6 +1378,8 @@ static void enable_iommus(void)
 		iommu_set_device_table(iommu);
 		iommu_enable_command_buffer(iommu);
 		iommu_enable_event_buffer(iommu);
+		iommu_enable_ppr_log(iommu);
+		iommu_enable_gt(iommu);
 		iommu_set_exclusion_range(iommu);
 		iommu_init_msi(iommu);
 		iommu_enable(iommu);
@@ -1303,13 +1409,6 @@ static void amd_iommu_resume(void)
 
 	/* re-load the hardware */
 	enable_iommus();
-
-	/*
-	 * we have to flush after the IOMMUs are enabled because a
-	 * disabled IOMMU will never execute the commands we send
-	 */
-	for_each_iommu(iommu)
-		iommu_flush_all_caches(iommu);
 }
 
 static int amd_iommu_suspend(void)
@@ -1560,6 +1659,8 @@ static int __init parse_amd_iommu_options(char *str)
 			amd_iommu_unmap_flush = true;
 		if (strncmp(str, "off", 3) == 0)
 			amd_iommu_disabled = true;
+		if (strncmp(str, "force_isolation", 15) == 0)
+			amd_iommu_force_isolation = true;
 	}
 
 	return 1;
@@ -1572,3 +1673,9 @@ IOMMU_INIT_FINISH(amd_iommu_detect,
 		  gart_iommu_hole_init,
 		  0,
 		  0);
+
+bool amd_iommu_v2_supported(void)
+{
+	return amd_iommu_v2_present;
+}
+EXPORT_SYMBOL(amd_iommu_v2_supported);
diff --git a/drivers/iommu/amd_iommu_proto.h b/drivers/iommu/amd_iommu_proto.h
index 7ffaa64410b0..1a7f41c6cc66 100644
--- a/drivers/iommu/amd_iommu_proto.h
+++ b/drivers/iommu/amd_iommu_proto.h
@@ -31,6 +31,30 @@ extern int amd_iommu_init_devices(void);
 extern void amd_iommu_uninit_devices(void);
 extern void amd_iommu_init_notifier(void);
 extern void amd_iommu_init_api(void);
+
+/* IOMMUv2 specific functions */
+struct iommu_domain;
+
+extern bool amd_iommu_v2_supported(void);
+extern int amd_iommu_register_ppr_notifier(struct notifier_block *nb);
+extern int amd_iommu_unregister_ppr_notifier(struct notifier_block *nb);
+extern void amd_iommu_domain_direct_map(struct iommu_domain *dom);
+extern int amd_iommu_domain_enable_v2(struct iommu_domain *dom, int pasids);
+extern int amd_iommu_flush_page(struct iommu_domain *dom, int pasid,
+				u64 address);
+extern int amd_iommu_flush_tlb(struct iommu_domain *dom, int pasid);
+extern int amd_iommu_domain_set_gcr3(struct iommu_domain *dom, int pasid,
+				     unsigned long cr3);
+extern int amd_iommu_domain_clear_gcr3(struct iommu_domain *dom, int pasid);
+extern struct iommu_domain *amd_iommu_get_v2_domain(struct pci_dev *pdev);
+
+#define PPR_SUCCESS			0x0
+#define PPR_INVALID			0x1
+#define PPR_FAILURE			0xf
+
+extern int amd_iommu_complete_ppr(struct pci_dev *pdev, int pasid,
+				  int status, int tag);
+
 #ifndef CONFIG_AMD_IOMMU_STATS
 
 static inline void amd_iommu_stats_init(void) { }
diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h
index 5b9c5075e81a..2452f3b71736 100644
--- a/drivers/iommu/amd_iommu_types.h
+++ b/drivers/iommu/amd_iommu_types.h
@@ -69,11 +69,14 @@
 #define MMIO_EXCL_BASE_OFFSET   0x0020
 #define MMIO_EXCL_LIMIT_OFFSET  0x0028
 #define MMIO_EXT_FEATURES	0x0030
+#define MMIO_PPR_LOG_OFFSET	0x0038
 #define MMIO_CMD_HEAD_OFFSET	0x2000
 #define MMIO_CMD_TAIL_OFFSET	0x2008
 #define MMIO_EVT_HEAD_OFFSET	0x2010
 #define MMIO_EVT_TAIL_OFFSET	0x2018
 #define MMIO_STATUS_OFFSET	0x2020
+#define MMIO_PPR_HEAD_OFFSET	0x2030
+#define MMIO_PPR_TAIL_OFFSET	0x2038
 
 
 /* Extended Feature Bits */
@@ -87,8 +90,17 @@
 #define FEATURE_HE		(1ULL<<8)
 #define FEATURE_PC		(1ULL<<9)
 
+#define FEATURE_PASID_SHIFT	32
+#define FEATURE_PASID_MASK	(0x1fULL << FEATURE_PASID_SHIFT)
+
+#define FEATURE_GLXVAL_SHIFT	14
+#define FEATURE_GLXVAL_MASK	(0x03ULL << FEATURE_GLXVAL_SHIFT)
+
+#define PASID_MASK		0x000fffff
+
 /* MMIO status bits */
-#define MMIO_STATUS_COM_WAIT_INT_MASK	0x04
+#define MMIO_STATUS_COM_WAIT_INT_MASK	(1 << 2)
+#define MMIO_STATUS_PPR_INT_MASK	(1 << 6)
 
 /* event logging constants */
 #define EVENT_ENTRY_SIZE	0x10
@@ -115,6 +127,7 @@
 #define CONTROL_EVT_LOG_EN      0x02ULL
 #define CONTROL_EVT_INT_EN      0x03ULL
 #define CONTROL_COMWAIT_EN      0x04ULL
+#define CONTROL_INV_TIMEOUT	0x05ULL
 #define CONTROL_PASSPW_EN       0x08ULL
 #define CONTROL_RESPASSPW_EN    0x09ULL
 #define CONTROL_COHERENT_EN     0x0aULL
@@ -122,18 +135,34 @@
 #define CONTROL_CMDBUF_EN       0x0cULL
 #define CONTROL_PPFLOG_EN       0x0dULL
 #define CONTROL_PPFINT_EN       0x0eULL
+#define CONTROL_PPR_EN          0x0fULL
+#define CONTROL_GT_EN           0x10ULL
+
+#define CTRL_INV_TO_MASK	(7 << CONTROL_INV_TIMEOUT)
+#define CTRL_INV_TO_NONE	0
+#define CTRL_INV_TO_1MS		1
+#define CTRL_INV_TO_10MS	2
+#define CTRL_INV_TO_100MS	3
+#define CTRL_INV_TO_1S		4
+#define CTRL_INV_TO_10S		5
+#define CTRL_INV_TO_100S	6
 
 /* command specific defines */
 #define CMD_COMPL_WAIT          0x01
 #define CMD_INV_DEV_ENTRY       0x02
 #define CMD_INV_IOMMU_PAGES	0x03
 #define CMD_INV_IOTLB_PAGES	0x04
+#define CMD_COMPLETE_PPR	0x07
 #define CMD_INV_ALL		0x08
 
 #define CMD_COMPL_WAIT_STORE_MASK	0x01
 #define CMD_COMPL_WAIT_INT_MASK		0x02
 #define CMD_INV_IOMMU_PAGES_SIZE_MASK	0x01
 #define CMD_INV_IOMMU_PAGES_PDE_MASK	0x02
+#define CMD_INV_IOMMU_PAGES_GN_MASK	0x04
+
+#define PPR_STATUS_MASK			0xf
+#define PPR_STATUS_SHIFT		12
 
 #define CMD_INV_IOMMU_ALL_PAGES_ADDRESS	0x7fffffffffffffffULL
 
@@ -165,6 +194,23 @@
 #define EVT_BUFFER_SIZE		8192 /* 512 entries */
 #define EVT_LEN_MASK		(0x9ULL << 56)
 
+/* Constants for PPR Log handling */
+#define PPR_LOG_ENTRIES		512
+#define PPR_LOG_SIZE_SHIFT	56
+#define PPR_LOG_SIZE_512	(0x9ULL << PPR_LOG_SIZE_SHIFT)
+#define PPR_ENTRY_SIZE		16
+#define PPR_LOG_SIZE		(PPR_ENTRY_SIZE * PPR_LOG_ENTRIES)
+
+#define PPR_REQ_TYPE(x)		(((x) >> 60) & 0xfULL)
+#define PPR_FLAGS(x)		(((x) >> 48) & 0xfffULL)
+#define PPR_DEVID(x)		((x) & 0xffffULL)
+#define PPR_TAG(x)		(((x) >> 32) & 0x3ffULL)
+#define PPR_PASID1(x)		(((x) >> 16) & 0xffffULL)
+#define PPR_PASID2(x)		(((x) >> 42) & 0xfULL)
+#define PPR_PASID(x)		((PPR_PASID2(x) << 16) | PPR_PASID1(x))
+
+#define PPR_REQ_FAULT		0x01
+
 #define PAGE_MODE_NONE    0x00
 #define PAGE_MODE_1_LEVEL 0x01
 #define PAGE_MODE_2_LEVEL 0x02
@@ -230,7 +276,24 @@
 #define IOMMU_PTE_IR (1ULL << 61)
 #define IOMMU_PTE_IW (1ULL << 62)
 
-#define DTE_FLAG_IOTLB	0x01
+#define DTE_FLAG_IOTLB	(0x01UL << 32)
+#define DTE_FLAG_GV	(0x01ULL << 55)
+#define DTE_GLX_SHIFT	(56)
+#define DTE_GLX_MASK	(3)
+
+#define DTE_GCR3_VAL_A(x)	(((x) >> 12) & 0x00007ULL)
+#define DTE_GCR3_VAL_B(x)	(((x) >> 15) & 0x0ffffULL)
+#define DTE_GCR3_VAL_C(x)	(((x) >> 31) & 0xfffffULL)
+
+#define DTE_GCR3_INDEX_A	0
+#define DTE_GCR3_INDEX_B	1
+#define DTE_GCR3_INDEX_C	1
+
+#define DTE_GCR3_SHIFT_A	58
+#define DTE_GCR3_SHIFT_B	16
+#define DTE_GCR3_SHIFT_C	43
+
+#define GCR3_VALID		0x01ULL
 
 #define IOMMU_PAGE_MASK (((1ULL << 52) - 1) & ~0xfffULL)
 #define IOMMU_PTE_PRESENT(pte) ((pte) & IOMMU_PTE_P)
@@ -257,6 +320,7 @@
 					      domain for an IOMMU */
 #define PD_PASSTHROUGH_MASK	(1UL << 2) /* domain has no page
 					      translation */
+#define PD_IOMMUV2_MASK		(1UL << 3) /* domain has gcr3 table */
 
 extern bool amd_iommu_dump;
 #define DUMP_printk(format, arg...)					\
@@ -285,6 +349,29 @@ extern bool amd_iommu_iotlb_sup;
 #define APERTURE_RANGE_INDEX(a)	((a) >> APERTURE_RANGE_SHIFT)
 #define APERTURE_PAGE_INDEX(a)	(((a) >> 21) & 0x3fULL)
 
+
+/*
+ * This struct is used to pass information about
+ * incoming PPR faults around.
+ */
+struct amd_iommu_fault {
+	u64 address;    /* IO virtual address of the fault*/
+	u32 pasid;      /* Address space identifier */
+	u16 device_id;  /* Originating PCI device id */
+	u16 tag;        /* PPR tag */
+	u16 flags;      /* Fault flags */
+
+};
+
+#define PPR_FAULT_EXEC	(1 << 1)
+#define PPR_FAULT_READ  (1 << 2)
+#define PPR_FAULT_WRITE (1 << 5)
+#define PPR_FAULT_USER  (1 << 6)
+#define PPR_FAULT_RSVD  (1 << 7)
+#define PPR_FAULT_GN    (1 << 8)
+
+struct iommu_domain;
+
 /*
  * This structure contains generic data for  IOMMU protection domains
  * independent of their use.
@@ -297,11 +384,15 @@ struct protection_domain {
 	u16 id;			/* the domain id written to the device table */
 	int mode;		/* paging mode (0-6 levels) */
 	u64 *pt_root;		/* page table root pointer */
+	int glx;		/* Number of levels for GCR3 table */
+	u64 *gcr3_tbl;		/* Guest CR3 table */
 	unsigned long flags;	/* flags to find out type of domain */
 	bool updated;		/* complete domain flush required */
 	unsigned dev_cnt;	/* devices assigned to this domain */
 	unsigned dev_iommu[MAX_IOMMUS]; /* per-IOMMU reference count */
 	void *priv;		/* private data */
+	struct iommu_domain *iommu_domain; /* Pointer to generic
+					      domain structure */
 
 };
 
@@ -315,10 +406,15 @@ struct iommu_dev_data {
 	struct protection_domain *domain; /* Domain the device is bound to */
 	atomic_t bind;			  /* Domain attach reverent count */
 	u16 devid;			  /* PCI Device ID */
+	bool iommu_v2;			  /* Device can make use of IOMMUv2 */
+	bool passthrough;		  /* Default for device is pt_domain */
 	struct {
 		bool enabled;
 		int qdep;
 	} ats;				  /* ATS state */
+	bool pri_tlp;			  /* PASID TLB required for
+					     PPR completions */
+	u32 errata;			  /* Bitmap for errata to apply */
 };
 
 /*
@@ -399,6 +495,9 @@ struct amd_iommu {
 	/* Extended features */
 	u64 features;
 
+	/* IOMMUv2 */
+	bool is_iommu_v2;
+
 	/*
 	 * Capability pointer. There could be more than one IOMMU per PCI
 	 * device function if there are more than one AMD IOMMU capability
@@ -431,6 +530,9 @@ struct amd_iommu {
 	/* MSI number for event interrupt */
 	u16 evt_msi_num;
 
+	/* Base of the PPR log, if present */
+	u8 *ppr_log;
+
 	/* true if interrupts for this IOMMU are already enabled */
 	bool int_enabled;
 
@@ -484,7 +586,7 @@ extern struct list_head amd_iommu_pd_list;
  * Structure defining one entry in the device table
  */
 struct dev_table_entry {
-	u32 data[8];
+	u64 data[4];
 };
 
 /*
@@ -549,6 +651,16 @@ extern unsigned long *amd_iommu_pd_alloc_bitmap;
  */
 extern bool amd_iommu_unmap_flush;
 
+/* Smallest number of PASIDs supported by any IOMMU in the system */
+extern u32 amd_iommu_max_pasids;
+
+extern bool amd_iommu_v2_present;
+
+extern bool amd_iommu_force_isolation;
+
+/* Max levels of glxval supported */
+extern int amd_iommu_max_glx_val;
+
 /* takes bus and device/function and returns the device id
  * FIXME: should that be in generic PCI code? */
 static inline u16 calc_devid(u8 bus, u8 devfn)
diff --git a/drivers/iommu/amd_iommu_v2.c b/drivers/iommu/amd_iommu_v2.c
new file mode 100644
index 000000000000..8add9f125d3e
--- /dev/null
+++ b/drivers/iommu/amd_iommu_v2.c
@@ -0,0 +1,994 @@
+/*
+ * Copyright (C) 2010-2012 Advanced Micro Devices, Inc.
+ * Author: Joerg Roedel <joerg.roedel@amd.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
+ */
+
+#include <linux/mmu_notifier.h>
+#include <linux/amd-iommu.h>
+#include <linux/mm_types.h>
+#include <linux/profile.h>
+#include <linux/module.h>
+#include <linux/sched.h>
+#include <linux/iommu.h>
+#include <linux/wait.h>
+#include <linux/pci.h>
+#include <linux/gfp.h>
+
+#include "amd_iommu_types.h"
+#include "amd_iommu_proto.h"
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Joerg Roedel <joerg.roedel@amd.com>");
+
+#define MAX_DEVICES		0x10000
+#define PRI_QUEUE_SIZE		512
+
+struct pri_queue {
+	atomic_t inflight;
+	bool finish;
+	int status;
+};
+
+struct pasid_state {
+	struct list_head list;			/* For global state-list */
+	atomic_t count;				/* Reference count */
+	struct task_struct *task;		/* Task bound to this PASID */
+	struct mm_struct *mm;			/* mm_struct for the faults */
+	struct mmu_notifier mn;                 /* mmu_otifier handle */
+	struct pri_queue pri[PRI_QUEUE_SIZE];	/* PRI tag states */
+	struct device_state *device_state;	/* Link to our device_state */
+	int pasid;				/* PASID index */
+	spinlock_t lock;			/* Protect pri_queues */
+	wait_queue_head_t wq;			/* To wait for count == 0 */
+};
+
+struct device_state {
+	atomic_t count;
+	struct pci_dev *pdev;
+	struct pasid_state **states;
+	struct iommu_domain *domain;
+	int pasid_levels;
+	int max_pasids;
+	amd_iommu_invalid_ppr_cb inv_ppr_cb;
+	amd_iommu_invalidate_ctx inv_ctx_cb;
+	spinlock_t lock;
+	wait_queue_head_t wq;
+};
+
+struct fault {
+	struct work_struct work;
+	struct device_state *dev_state;
+	struct pasid_state *state;
+	struct mm_struct *mm;
+	u64 address;
+	u16 devid;
+	u16 pasid;
+	u16 tag;
+	u16 finish;
+	u16 flags;
+};
+
+struct device_state **state_table;
+static spinlock_t state_lock;
+
+/* List and lock for all pasid_states */
+static LIST_HEAD(pasid_state_list);
+static DEFINE_SPINLOCK(ps_lock);
+
+static struct workqueue_struct *iommu_wq;
+
+/*
+ * Empty page table - Used between
+ * mmu_notifier_invalidate_range_start and
+ * mmu_notifier_invalidate_range_end
+ */
+static u64 *empty_page_table;
+
+static void free_pasid_states(struct device_state *dev_state);
+static void unbind_pasid(struct device_state *dev_state, int pasid);
+static int task_exit(struct notifier_block *nb, unsigned long e, void *data);
+
+static u16 device_id(struct pci_dev *pdev)
+{
+	u16 devid;
+
+	devid = pdev->bus->number;
+	devid = (devid << 8) | pdev->devfn;
+
+	return devid;
+}
+
+static struct device_state *get_device_state(u16 devid)
+{
+	struct device_state *dev_state;
+	unsigned long flags;
+
+	spin_lock_irqsave(&state_lock, flags);
+	dev_state = state_table[devid];
+	if (dev_state != NULL)
+		atomic_inc(&dev_state->count);
+	spin_unlock_irqrestore(&state_lock, flags);
+
+	return dev_state;
+}
+
+static void free_device_state(struct device_state *dev_state)
+{
+	/*
+	 * First detach device from domain - No more PRI requests will arrive
+	 * from that device after it is unbound from the IOMMUv2 domain.
+	 */
+	iommu_detach_device(dev_state->domain, &dev_state->pdev->dev);
+
+	/* Everything is down now, free the IOMMUv2 domain */
+	iommu_domain_free(dev_state->domain);
+
+	/* Finally get rid of the device-state */
+	kfree(dev_state);
+}
+
+static void put_device_state(struct device_state *dev_state)
+{
+	if (atomic_dec_and_test(&dev_state->count))
+		wake_up(&dev_state->wq);
+}
+
+static void put_device_state_wait(struct device_state *dev_state)
+{
+	DEFINE_WAIT(wait);
+
+	prepare_to_wait(&dev_state->wq, &wait, TASK_UNINTERRUPTIBLE);
+	if (!atomic_dec_and_test(&dev_state->count))
+		schedule();
+	finish_wait(&dev_state->wq, &wait);
+
+	free_device_state(dev_state);
+}
+
+static struct notifier_block profile_nb = {
+	.notifier_call = task_exit,
+};
+
+static void link_pasid_state(struct pasid_state *pasid_state)
+{
+	spin_lock(&ps_lock);
+	list_add_tail(&pasid_state->list, &pasid_state_list);
+	spin_unlock(&ps_lock);
+}
+
+static void __unlink_pasid_state(struct pasid_state *pasid_state)
+{
+	list_del(&pasid_state->list);
+}
+
+static void unlink_pasid_state(struct pasid_state *pasid_state)
+{
+	spin_lock(&ps_lock);
+	__unlink_pasid_state(pasid_state);
+	spin_unlock(&ps_lock);
+}
+
+/* Must be called under dev_state->lock */
+static struct pasid_state **__get_pasid_state_ptr(struct device_state *dev_state,
+						  int pasid, bool alloc)
+{
+	struct pasid_state **root, **ptr;
+	int level, index;
+
+	level = dev_state->pasid_levels;
+	root  = dev_state->states;
+
+	while (true) {
+
+		index = (pasid >> (9 * level)) & 0x1ff;
+		ptr   = &root[index];
+
+		if (level == 0)
+			break;
+
+		if (*ptr == NULL) {
+			if (!alloc)
+				return NULL;
+
+			*ptr = (void *)get_zeroed_page(GFP_ATOMIC);
+			if (*ptr == NULL)
+				return NULL;
+		}
+
+		root   = (struct pasid_state **)*ptr;
+		level -= 1;
+	}
+
+	return ptr;
+}
+
+static int set_pasid_state(struct device_state *dev_state,
+			   struct pasid_state *pasid_state,
+			   int pasid)
+{
+	struct pasid_state **ptr;
+	unsigned long flags;
+	int ret;
+
+	spin_lock_irqsave(&dev_state->lock, flags);
+	ptr = __get_pasid_state_ptr(dev_state, pasid, true);
+
+	ret = -ENOMEM;
+	if (ptr == NULL)
+		goto out_unlock;
+
+	ret = -ENOMEM;
+	if (*ptr != NULL)
+		goto out_unlock;
+
+	*ptr = pasid_state;
+
+	ret = 0;
+
+out_unlock:
+	spin_unlock_irqrestore(&dev_state->lock, flags);
+
+	return ret;
+}
+
+static void clear_pasid_state(struct device_state *dev_state, int pasid)
+{
+	struct pasid_state **ptr;
+	unsigned long flags;
+
+	spin_lock_irqsave(&dev_state->lock, flags);
+	ptr = __get_pasid_state_ptr(dev_state, pasid, true);
+
+	if (ptr == NULL)
+		goto out_unlock;
+
+	*ptr = NULL;
+
+out_unlock:
+	spin_unlock_irqrestore(&dev_state->lock, flags);
+}
+
+static struct pasid_state *get_pasid_state(struct device_state *dev_state,
+					   int pasid)
+{
+	struct pasid_state **ptr, *ret = NULL;
+	unsigned long flags;
+
+	spin_lock_irqsave(&dev_state->lock, flags);
+	ptr = __get_pasid_state_ptr(dev_state, pasid, false);
+
+	if (ptr == NULL)
+		goto out_unlock;
+
+	ret = *ptr;
+	if (ret)
+		atomic_inc(&ret->count);
+
+out_unlock:
+	spin_unlock_irqrestore(&dev_state->lock, flags);
+
+	return ret;
+}
+
+static void free_pasid_state(struct pasid_state *pasid_state)
+{
+	kfree(pasid_state);
+}
+
+static void put_pasid_state(struct pasid_state *pasid_state)
+{
+	if (atomic_dec_and_test(&pasid_state->count)) {
+		put_device_state(pasid_state->device_state);
+		wake_up(&pasid_state->wq);
+	}
+}
+
+static void put_pasid_state_wait(struct pasid_state *pasid_state)
+{
+	DEFINE_WAIT(wait);
+
+	prepare_to_wait(&pasid_state->wq, &wait, TASK_UNINTERRUPTIBLE);
+
+	if (atomic_dec_and_test(&pasid_state->count))
+		put_device_state(pasid_state->device_state);
+	else
+		schedule();
+
+	finish_wait(&pasid_state->wq, &wait);
+	mmput(pasid_state->mm);
+	free_pasid_state(pasid_state);
+}
+
+static void __unbind_pasid(struct pasid_state *pasid_state)
+{
+	struct iommu_domain *domain;
+
+	domain = pasid_state->device_state->domain;
+
+	amd_iommu_domain_clear_gcr3(domain, pasid_state->pasid);
+	clear_pasid_state(pasid_state->device_state, pasid_state->pasid);
+
+	/* Make sure no more pending faults are in the queue */
+	flush_workqueue(iommu_wq);
+
+	mmu_notifier_unregister(&pasid_state->mn, pasid_state->mm);
+
+	put_pasid_state(pasid_state); /* Reference taken in bind() function */
+}
+
+static void unbind_pasid(struct device_state *dev_state, int pasid)
+{
+	struct pasid_state *pasid_state;
+
+	pasid_state = get_pasid_state(dev_state, pasid);
+	if (pasid_state == NULL)
+		return;
+
+	unlink_pasid_state(pasid_state);
+	__unbind_pasid(pasid_state);
+	put_pasid_state_wait(pasid_state); /* Reference taken in this function */
+}
+
+static void free_pasid_states_level1(struct pasid_state **tbl)
+{
+	int i;
+
+	for (i = 0; i < 512; ++i) {
+		if (tbl[i] == NULL)
+			continue;
+
+		free_page((unsigned long)tbl[i]);
+	}
+}
+
+static void free_pasid_states_level2(struct pasid_state **tbl)
+{
+	struct pasid_state **ptr;
+	int i;
+
+	for (i = 0; i < 512; ++i) {
+		if (tbl[i] == NULL)
+			continue;
+
+		ptr = (struct pasid_state **)tbl[i];
+		free_pasid_states_level1(ptr);
+	}
+}
+
+static void free_pasid_states(struct device_state *dev_state)
+{
+	struct pasid_state *pasid_state;
+	int i;
+
+	for (i = 0; i < dev_state->max_pasids; ++i) {
+		pasid_state = get_pasid_state(dev_state, i);
+		if (pasid_state == NULL)
+			continue;
+
+		put_pasid_state(pasid_state);
+		unbind_pasid(dev_state, i);
+	}
+
+	if (dev_state->pasid_levels == 2)
+		free_pasid_states_level2(dev_state->states);
+	else if (dev_state->pasid_levels == 1)
+		free_pasid_states_level1(dev_state->states);
+	else if (dev_state->pasid_levels != 0)
+		BUG();
+
+	free_page((unsigned long)dev_state->states);
+}
+
+static struct pasid_state *mn_to_state(struct mmu_notifier *mn)
+{
+	return container_of(mn, struct pasid_state, mn);
+}
+
+static void __mn_flush_page(struct mmu_notifier *mn,
+			    unsigned long address)
+{
+	struct pasid_state *pasid_state;
+	struct device_state *dev_state;
+
+	pasid_state = mn_to_state(mn);
+	dev_state   = pasid_state->device_state;
+
+	amd_iommu_flush_page(dev_state->domain, pasid_state->pasid, address);
+}
+
+static int mn_clear_flush_young(struct mmu_notifier *mn,
+				struct mm_struct *mm,
+				unsigned long address)
+{
+	__mn_flush_page(mn, address);
+
+	return 0;
+}
+
+static void mn_change_pte(struct mmu_notifier *mn,
+			  struct mm_struct *mm,
+			  unsigned long address,
+			  pte_t pte)
+{
+	__mn_flush_page(mn, address);
+}
+
+static void mn_invalidate_page(struct mmu_notifier *mn,
+			       struct mm_struct *mm,
+			       unsigned long address)
+{
+	__mn_flush_page(mn, address);
+}
+
+static void mn_invalidate_range_start(struct mmu_notifier *mn,
+				      struct mm_struct *mm,
+				      unsigned long start, unsigned long end)
+{
+	struct pasid_state *pasid_state;
+	struct device_state *dev_state;
+
+	pasid_state = mn_to_state(mn);
+	dev_state   = pasid_state->device_state;
+
+	amd_iommu_domain_set_gcr3(dev_state->domain, pasid_state->pasid,
+				  __pa(empty_page_table));
+}
+
+static void mn_invalidate_range_end(struct mmu_notifier *mn,
+				    struct mm_struct *mm,
+				    unsigned long start, unsigned long end)
+{
+	struct pasid_state *pasid_state;
+	struct device_state *dev_state;
+
+	pasid_state = mn_to_state(mn);
+	dev_state   = pasid_state->device_state;
+
+	amd_iommu_domain_set_gcr3(dev_state->domain, pasid_state->pasid,
+				  __pa(pasid_state->mm->pgd));
+}
+
+static struct mmu_notifier_ops iommu_mn = {
+	.clear_flush_young      = mn_clear_flush_young,
+	.change_pte             = mn_change_pte,
+	.invalidate_page        = mn_invalidate_page,
+	.invalidate_range_start = mn_invalidate_range_start,
+	.invalidate_range_end   = mn_invalidate_range_end,
+};
+
+static void set_pri_tag_status(struct pasid_state *pasid_state,
+			       u16 tag, int status)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&pasid_state->lock, flags);
+	pasid_state->pri[tag].status = status;
+	spin_unlock_irqrestore(&pasid_state->lock, flags);
+}
+
+static void finish_pri_tag(struct device_state *dev_state,
+			   struct pasid_state *pasid_state,
+			   u16 tag)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&pasid_state->lock, flags);
+	if (atomic_dec_and_test(&pasid_state->pri[tag].inflight) &&
+	    pasid_state->pri[tag].finish) {
+		amd_iommu_complete_ppr(dev_state->pdev, pasid_state->pasid,
+				       pasid_state->pri[tag].status, tag);
+		pasid_state->pri[tag].finish = false;
+		pasid_state->pri[tag].status = PPR_SUCCESS;
+	}
+	spin_unlock_irqrestore(&pasid_state->lock, flags);
+}
+
+static void do_fault(struct work_struct *work)
+{
+	struct fault *fault = container_of(work, struct fault, work);
+	int npages, write;
+	struct page *page;
+
+	write = !!(fault->flags & PPR_FAULT_WRITE);
+
+	npages = get_user_pages(fault->state->task, fault->state->mm,
+				fault->address, 1, write, 0, &page, NULL);
+
+	if (npages == 1) {
+		put_page(page);
+	} else if (fault->dev_state->inv_ppr_cb) {
+		int status;
+
+		status = fault->dev_state->inv_ppr_cb(fault->dev_state->pdev,
+						      fault->pasid,
+						      fault->address,
+						      fault->flags);
+		switch (status) {
+		case AMD_IOMMU_INV_PRI_RSP_SUCCESS:
+			set_pri_tag_status(fault->state, fault->tag, PPR_SUCCESS);
+			break;
+		case AMD_IOMMU_INV_PRI_RSP_INVALID:
+			set_pri_tag_status(fault->state, fault->tag, PPR_INVALID);
+			break;
+		case AMD_IOMMU_INV_PRI_RSP_FAIL:
+			set_pri_tag_status(fault->state, fault->tag, PPR_FAILURE);
+			break;
+		default:
+			BUG();
+		}
+	} else {
+		set_pri_tag_status(fault->state, fault->tag, PPR_INVALID);
+	}
+
+	finish_pri_tag(fault->dev_state, fault->state, fault->tag);
+
+	put_pasid_state(fault->state);
+
+	kfree(fault);
+}
+
+static int ppr_notifier(struct notifier_block *nb, unsigned long e, void *data)
+{
+	struct amd_iommu_fault *iommu_fault;
+	struct pasid_state *pasid_state;
+	struct device_state *dev_state;
+	unsigned long flags;
+	struct fault *fault;
+	bool finish;
+	u16 tag;
+	int ret;
+
+	iommu_fault = data;
+	tag         = iommu_fault->tag & 0x1ff;
+	finish      = (iommu_fault->tag >> 9) & 1;
+
+	ret = NOTIFY_DONE;
+	dev_state = get_device_state(iommu_fault->device_id);
+	if (dev_state == NULL)
+		goto out;
+
+	pasid_state = get_pasid_state(dev_state, iommu_fault->pasid);
+	if (pasid_state == NULL) {
+		/* We know the device but not the PASID -> send INVALID */
+		amd_iommu_complete_ppr(dev_state->pdev, iommu_fault->pasid,
+				       PPR_INVALID, tag);
+		goto out_drop_state;
+	}
+
+	spin_lock_irqsave(&pasid_state->lock, flags);
+	atomic_inc(&pasid_state->pri[tag].inflight);
+	if (finish)
+		pasid_state->pri[tag].finish = true;
+	spin_unlock_irqrestore(&pasid_state->lock, flags);
+
+	fault = kzalloc(sizeof(*fault), GFP_ATOMIC);
+	if (fault == NULL) {
+		/* We are OOM - send success and let the device re-fault */
+		finish_pri_tag(dev_state, pasid_state, tag);
+		goto out_drop_state;
+	}
+
+	fault->dev_state = dev_state;
+	fault->address   = iommu_fault->address;
+	fault->state     = pasid_state;
+	fault->tag       = tag;
+	fault->finish    = finish;
+	fault->flags     = iommu_fault->flags;
+	INIT_WORK(&fault->work, do_fault);
+
+	queue_work(iommu_wq, &fault->work);
+
+	ret = NOTIFY_OK;
+
+out_drop_state:
+	put_device_state(dev_state);
+
+out:
+	return ret;
+}
+
+static struct notifier_block ppr_nb = {
+	.notifier_call = ppr_notifier,
+};
+
+static int task_exit(struct notifier_block *nb, unsigned long e, void *data)
+{
+	struct pasid_state *pasid_state;
+	struct task_struct *task;
+
+	task = data;
+
+	/*
+	 * Using this notifier is a hack - but there is no other choice
+	 * at the moment. What I really want is a sleeping notifier that
+	 * is called when an MM goes down. But such a notifier doesn't
+	 * exist yet. The notifier needs to sleep because it has to make
+	 * sure that the device does not use the PASID and the address
+	 * space anymore before it is destroyed. This includes waiting
+	 * for pending PRI requests to pass the workqueue. The
+	 * MMU-Notifiers would be a good fit, but they use RCU and so
+	 * they are not allowed to sleep. Lets see how we can solve this
+	 * in a more intelligent way in the future.
+	 */
+again:
+	spin_lock(&ps_lock);
+	list_for_each_entry(pasid_state, &pasid_state_list, list) {
+		struct device_state *dev_state;
+		int pasid;
+
+		if (pasid_state->task != task)
+			continue;
+
+		/* Drop Lock and unbind */
+		spin_unlock(&ps_lock);
+
+		dev_state = pasid_state->device_state;
+		pasid     = pasid_state->pasid;
+
+		if (pasid_state->device_state->inv_ctx_cb)
+			dev_state->inv_ctx_cb(dev_state->pdev, pasid);
+
+		unbind_pasid(dev_state, pasid);
+
+		/* Task may be in the list multiple times */
+		goto again;
+	}
+	spin_unlock(&ps_lock);
+
+	return NOTIFY_OK;
+}
+
+int amd_iommu_bind_pasid(struct pci_dev *pdev, int pasid,
+			 struct task_struct *task)
+{
+	struct pasid_state *pasid_state;
+	struct device_state *dev_state;
+	u16 devid;
+	int ret;
+
+	might_sleep();
+
+	if (!amd_iommu_v2_supported())
+		return -ENODEV;
+
+	devid     = device_id(pdev);
+	dev_state = get_device_state(devid);
+
+	if (dev_state == NULL)
+		return -EINVAL;
+
+	ret = -EINVAL;
+	if (pasid < 0 || pasid >= dev_state->max_pasids)
+		goto out;
+
+	ret = -ENOMEM;
+	pasid_state = kzalloc(sizeof(*pasid_state), GFP_KERNEL);
+	if (pasid_state == NULL)
+		goto out;
+
+	atomic_set(&pasid_state->count, 1);
+	init_waitqueue_head(&pasid_state->wq);
+	pasid_state->task         = task;
+	pasid_state->mm           = get_task_mm(task);
+	pasid_state->device_state = dev_state;
+	pasid_state->pasid        = pasid;
+	pasid_state->mn.ops       = &iommu_mn;
+
+	if (pasid_state->mm == NULL)
+		goto out_free;
+
+	mmu_notifier_register(&pasid_state->mn, pasid_state->mm);
+
+	ret = set_pasid_state(dev_state, pasid_state, pasid);
+	if (ret)
+		goto out_unregister;
+
+	ret = amd_iommu_domain_set_gcr3(dev_state->domain, pasid,
+					__pa(pasid_state->mm->pgd));
+	if (ret)
+		goto out_clear_state;
+
+	link_pasid_state(pasid_state);
+
+	return 0;
+
+out_clear_state:
+	clear_pasid_state(dev_state, pasid);
+
+out_unregister:
+	mmu_notifier_unregister(&pasid_state->mn, pasid_state->mm);
+
+out_free:
+	free_pasid_state(pasid_state);
+
+out:
+	put_device_state(dev_state);
+
+	return ret;
+}
+EXPORT_SYMBOL(amd_iommu_bind_pasid);
+
+void amd_iommu_unbind_pasid(struct pci_dev *pdev, int pasid)
+{
+	struct device_state *dev_state;
+	u16 devid;
+
+	might_sleep();
+
+	if (!amd_iommu_v2_supported())
+		return;
+
+	devid = device_id(pdev);
+	dev_state = get_device_state(devid);
+	if (dev_state == NULL)
+		return;
+
+	if (pasid < 0 || pasid >= dev_state->max_pasids)
+		goto out;
+
+	unbind_pasid(dev_state, pasid);
+
+out:
+	put_device_state(dev_state);
+}
+EXPORT_SYMBOL(amd_iommu_unbind_pasid);
+
+int amd_iommu_init_device(struct pci_dev *pdev, int pasids)
+{
+	struct device_state *dev_state;
+	unsigned long flags;
+	int ret, tmp;
+	u16 devid;
+
+	might_sleep();
+
+	if (!amd_iommu_v2_supported())
+		return -ENODEV;
+
+	if (pasids <= 0 || pasids > (PASID_MASK + 1))
+		return -EINVAL;
+
+	devid = device_id(pdev);
+
+	dev_state = kzalloc(sizeof(*dev_state), GFP_KERNEL);
+	if (dev_state == NULL)
+		return -ENOMEM;
+
+	spin_lock_init(&dev_state->lock);
+	init_waitqueue_head(&dev_state->wq);
+	dev_state->pdev = pdev;
+
+	tmp = pasids;
+	for (dev_state->pasid_levels = 0; (tmp - 1) & ~0x1ff; tmp >>= 9)
+		dev_state->pasid_levels += 1;
+
+	atomic_set(&dev_state->count, 1);
+	dev_state->max_pasids = pasids;
+
+	ret = -ENOMEM;
+	dev_state->states = (void *)get_zeroed_page(GFP_KERNEL);
+	if (dev_state->states == NULL)
+		goto out_free_dev_state;
+
+	dev_state->domain = iommu_domain_alloc(&pci_bus_type);
+	if (dev_state->domain == NULL)
+		goto out_free_states;
+
+	amd_iommu_domain_direct_map(dev_state->domain);
+
+	ret = amd_iommu_domain_enable_v2(dev_state->domain, pasids);
+	if (ret)
+		goto out_free_domain;
+
+	ret = iommu_attach_device(dev_state->domain, &pdev->dev);
+	if (ret != 0)
+		goto out_free_domain;
+
+	spin_lock_irqsave(&state_lock, flags);
+
+	if (state_table[devid] != NULL) {
+		spin_unlock_irqrestore(&state_lock, flags);
+		ret = -EBUSY;
+		goto out_free_domain;
+	}
+
+	state_table[devid] = dev_state;
+
+	spin_unlock_irqrestore(&state_lock, flags);
+
+	return 0;
+
+out_free_domain:
+	iommu_domain_free(dev_state->domain);
+
+out_free_states:
+	free_page((unsigned long)dev_state->states);
+
+out_free_dev_state:
+	kfree(dev_state);
+
+	return ret;
+}
+EXPORT_SYMBOL(amd_iommu_init_device);
+
+void amd_iommu_free_device(struct pci_dev *pdev)
+{
+	struct device_state *dev_state;
+	unsigned long flags;
+	u16 devid;
+
+	if (!amd_iommu_v2_supported())
+		return;
+
+	devid = device_id(pdev);
+
+	spin_lock_irqsave(&state_lock, flags);
+
+	dev_state = state_table[devid];
+	if (dev_state == NULL) {
+		spin_unlock_irqrestore(&state_lock, flags);
+		return;
+	}
+
+	state_table[devid] = NULL;
+
+	spin_unlock_irqrestore(&state_lock, flags);
+
+	/* Get rid of any remaining pasid states */
+	free_pasid_states(dev_state);
+
+	put_device_state_wait(dev_state);
+}
+EXPORT_SYMBOL(amd_iommu_free_device);
+
+int amd_iommu_set_invalid_ppr_cb(struct pci_dev *pdev,
+				 amd_iommu_invalid_ppr_cb cb)
+{
+	struct device_state *dev_state;
+	unsigned long flags;
+	u16 devid;
+	int ret;
+
+	if (!amd_iommu_v2_supported())
+		return -ENODEV;
+
+	devid = device_id(pdev);
+
+	spin_lock_irqsave(&state_lock, flags);
+
+	ret = -EINVAL;
+	dev_state = state_table[devid];
+	if (dev_state == NULL)
+		goto out_unlock;
+
+	dev_state->inv_ppr_cb = cb;
+
+	ret = 0;
+
+out_unlock:
+	spin_unlock_irqrestore(&state_lock, flags);
+
+	return ret;
+}
+EXPORT_SYMBOL(amd_iommu_set_invalid_ppr_cb);
+
+int amd_iommu_set_invalidate_ctx_cb(struct pci_dev *pdev,
+				    amd_iommu_invalidate_ctx cb)
+{
+	struct device_state *dev_state;
+	unsigned long flags;
+	u16 devid;
+	int ret;
+
+	if (!amd_iommu_v2_supported())
+		return -ENODEV;
+
+	devid = device_id(pdev);
+
+	spin_lock_irqsave(&state_lock, flags);
+
+	ret = -EINVAL;
+	dev_state = state_table[devid];
+	if (dev_state == NULL)
+		goto out_unlock;
+
+	dev_state->inv_ctx_cb = cb;
+
+	ret = 0;
+
+out_unlock:
+	spin_unlock_irqrestore(&state_lock, flags);
+
+	return ret;
+}
+EXPORT_SYMBOL(amd_iommu_set_invalidate_ctx_cb);
+
+static int __init amd_iommu_v2_init(void)
+{
+	size_t state_table_size;
+	int ret;
+
+	pr_info("AMD IOMMUv2 driver by Joerg Roedel <joerg.roedel@amd.com>");
+
+	spin_lock_init(&state_lock);
+
+	state_table_size = MAX_DEVICES * sizeof(struct device_state *);
+	state_table = (void *)__get_free_pages(GFP_KERNEL | __GFP_ZERO,
+					       get_order(state_table_size));
+	if (state_table == NULL)
+		return -ENOMEM;
+
+	ret = -ENOMEM;
+	iommu_wq = create_workqueue("amd_iommu_v2");
+	if (iommu_wq == NULL)
+		goto out_free;
+
+	ret = -ENOMEM;
+	empty_page_table = (u64 *)get_zeroed_page(GFP_KERNEL);
+	if (empty_page_table == NULL)
+		goto out_destroy_wq;
+
+	amd_iommu_register_ppr_notifier(&ppr_nb);
+	profile_event_register(PROFILE_TASK_EXIT, &profile_nb);
+
+	return 0;
+
+out_destroy_wq:
+	destroy_workqueue(iommu_wq);
+
+out_free:
+	free_pages((unsigned long)state_table, get_order(state_table_size));
+
+	return ret;
+}
+
+static void __exit amd_iommu_v2_exit(void)
+{
+	struct device_state *dev_state;
+	size_t state_table_size;
+	int i;
+
+	profile_event_unregister(PROFILE_TASK_EXIT, &profile_nb);
+	amd_iommu_unregister_ppr_notifier(&ppr_nb);
+
+	flush_workqueue(iommu_wq);
+
+	/*
+	 * The loop below might call flush_workqueue(), so call
+	 * destroy_workqueue() after it
+	 */
+	for (i = 0; i < MAX_DEVICES; ++i) {
+		dev_state = get_device_state(i);
+
+		if (dev_state == NULL)
+			continue;
+
+		WARN_ON_ONCE(1);
+
+		put_device_state(dev_state);
+		amd_iommu_free_device(dev_state->pdev);
+	}
+
+	destroy_workqueue(iommu_wq);
+
+	state_table_size = MAX_DEVICES * sizeof(struct device_state *);
+	free_pages((unsigned long)state_table, get_order(state_table_size));
+
+	free_page((unsigned long)empty_page_table);
+}
+
+module_init(amd_iommu_v2_init);
+module_exit(amd_iommu_v2_exit);
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c
index 31053a951c34..c9c6053198d4 100644
--- a/drivers/iommu/intel-iommu.c
+++ b/drivers/iommu/intel-iommu.c
@@ -79,6 +79,24 @@
 #define LEVEL_STRIDE		(9)
 #define LEVEL_MASK		(((u64)1 << LEVEL_STRIDE) - 1)
 
+/*
+ * This bitmap is used to advertise the page sizes our hardware support
+ * to the IOMMU core, which will then use this information to split
+ * physically contiguous memory regions it is mapping into page sizes
+ * that we support.
+ *
+ * Traditionally the IOMMU core just handed us the mappings directly,
+ * after making sure the size is an order of a 4KiB page and that the
+ * mapping has natural alignment.
+ *
+ * To retain this behavior, we currently advertise that we support
+ * all page sizes that are an order of 4KiB.
+ *
+ * If at some point we'd like to utilize the IOMMU core's new behavior,
+ * we could change this to advertise the real page sizes we support.
+ */
+#define INTEL_IOMMU_PGSIZES	(~0xFFFUL)
+
 static inline int agaw_to_level(int agaw)
 {
 	return agaw + 2;
@@ -3979,12 +3997,11 @@ static void intel_iommu_detach_device(struct iommu_domain *domain,
 
 static int intel_iommu_map(struct iommu_domain *domain,
 			   unsigned long iova, phys_addr_t hpa,
-			   int gfp_order, int iommu_prot)
+			   size_t size, int iommu_prot)
 {
 	struct dmar_domain *dmar_domain = domain->priv;
 	u64 max_addr;
 	int prot = 0;
-	size_t size;
 	int ret;
 
 	if (iommu_prot & IOMMU_READ)
@@ -3994,7 +4011,6 @@ static int intel_iommu_map(struct iommu_domain *domain,
 	if ((iommu_prot & IOMMU_CACHE) && dmar_domain->iommu_snooping)
 		prot |= DMA_PTE_SNP;
 
-	size     = PAGE_SIZE << gfp_order;
 	max_addr = iova + size;
 	if (dmar_domain->max_addr < max_addr) {
 		u64 end;
@@ -4017,11 +4033,10 @@ static int intel_iommu_map(struct iommu_domain *domain,
 	return ret;
 }
 
-static int intel_iommu_unmap(struct iommu_domain *domain,
-			     unsigned long iova, int gfp_order)
+static size_t intel_iommu_unmap(struct iommu_domain *domain,
+			     unsigned long iova, size_t size)
 {
 	struct dmar_domain *dmar_domain = domain->priv;
-	size_t size = PAGE_SIZE << gfp_order;
 	int order;
 
 	order = dma_pte_clear_range(dmar_domain, iova >> VTD_PAGE_SHIFT,
@@ -4030,7 +4045,7 @@ static int intel_iommu_unmap(struct iommu_domain *domain,
 	if (dmar_domain->max_addr == iova + size)
 		dmar_domain->max_addr = iova;
 
-	return order;
+	return PAGE_SIZE << order;
 }
 
 static phys_addr_t intel_iommu_iova_to_phys(struct iommu_domain *domain,
@@ -4060,6 +4075,54 @@ static int intel_iommu_domain_has_cap(struct iommu_domain *domain,
 	return 0;
 }
 
+/*
+ * Group numbers are arbitrary.  Device with the same group number
+ * indicate the iommu cannot differentiate between them.  To avoid
+ * tracking used groups we just use the seg|bus|devfn of the lowest
+ * level we're able to differentiate devices
+ */
+static int intel_iommu_device_group(struct device *dev, unsigned int *groupid)
+{
+	struct pci_dev *pdev = to_pci_dev(dev);
+	struct pci_dev *bridge;
+	union {
+		struct {
+			u8 devfn;
+			u8 bus;
+			u16 segment;
+		} pci;
+		u32 group;
+	} id;
+
+	if (iommu_no_mapping(dev))
+		return -ENODEV;
+
+	id.pci.segment = pci_domain_nr(pdev->bus);
+	id.pci.bus = pdev->bus->number;
+	id.pci.devfn = pdev->devfn;
+
+	if (!device_to_iommu(id.pci.segment, id.pci.bus, id.pci.devfn))
+		return -ENODEV;
+
+	bridge = pci_find_upstream_pcie_bridge(pdev);
+	if (bridge) {
+		if (pci_is_pcie(bridge)) {
+			id.pci.bus = bridge->subordinate->number;
+			id.pci.devfn = 0;
+		} else {
+			id.pci.bus = bridge->bus->number;
+			id.pci.devfn = bridge->devfn;
+		}
+	}
+
+	if (!pdev->is_virtfn && iommu_group_mf)
+		id.pci.devfn = PCI_DEVFN(PCI_SLOT(id.pci.devfn), 0);
+
+	*groupid = id.group;
+
+	return 0;
+}
+
 static struct iommu_ops intel_iommu_ops = {
 	.domain_init	= intel_iommu_domain_init,
 	.domain_destroy = intel_iommu_domain_destroy,
@@ -4069,6 +4132,8 @@ static struct iommu_ops intel_iommu_ops = {
 	.unmap		= intel_iommu_unmap,
 	.iova_to_phys	= intel_iommu_iova_to_phys,
 	.domain_has_cap = intel_iommu_domain_has_cap,
+	.device_group	= intel_iommu_device_group,
+	.pgsize_bitmap	= INTEL_IOMMU_PGSIZES,
 };
 
 static void __devinit quirk_iommu_rwbf(struct pci_dev *dev)
diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
index 5b5fa5cdaa31..2198b2dbbcd3 100644
--- a/drivers/iommu/iommu.c
+++ b/drivers/iommu/iommu.c
@@ -16,6 +16,8 @@
  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  */
 
+#define pr_fmt(fmt)    "%s: " fmt, __func__
+
 #include <linux/device.h>
 #include <linux/kernel.h>
 #include <linux/bug.h>
@@ -25,8 +27,59 @@
 #include <linux/errno.h>
 #include <linux/iommu.h>
 
+static ssize_t show_iommu_group(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	unsigned int groupid;
+
+	if (iommu_device_group(dev, &groupid))
+		return 0;
+
+	return sprintf(buf, "%u", groupid);
+}
+static DEVICE_ATTR(iommu_group, S_IRUGO, show_iommu_group, NULL);
+
+static int add_iommu_group(struct device *dev, void *data)
+{
+	unsigned int groupid;
+
+	if (iommu_device_group(dev, &groupid) == 0)
+		return device_create_file(dev, &dev_attr_iommu_group);
+
+	return 0;
+}
+
+static int remove_iommu_group(struct device *dev)
+{
+	unsigned int groupid;
+
+	if (iommu_device_group(dev, &groupid) == 0)
+		device_remove_file(dev, &dev_attr_iommu_group);
+
+	return 0;
+}
+
+static int iommu_device_notifier(struct notifier_block *nb,
+				 unsigned long action, void *data)
+{
+	struct device *dev = data;
+
+	if (action == BUS_NOTIFY_ADD_DEVICE)
+		return add_iommu_group(dev, NULL);
+	else if (action == BUS_NOTIFY_DEL_DEVICE)
+		return remove_iommu_group(dev);
+
+	return 0;
+}
+
+static struct notifier_block iommu_device_nb = {
+	.notifier_call = iommu_device_notifier,
+};
+
 static void iommu_bus_init(struct bus_type *bus, struct iommu_ops *ops)
 {
+	bus_register_notifier(bus, &iommu_device_nb);
+	bus_for_each_dev(bus, NULL, NULL, add_iommu_group);
 }
 
 /**
@@ -157,32 +210,134 @@ int iommu_domain_has_cap(struct iommu_domain *domain,
 EXPORT_SYMBOL_GPL(iommu_domain_has_cap);
 
 int iommu_map(struct iommu_domain *domain, unsigned long iova,
-	      phys_addr_t paddr, int gfp_order, int prot)
+	      phys_addr_t paddr, size_t size, int prot)
 {
-	size_t size;
+	unsigned long orig_iova = iova;
+	unsigned int min_pagesz;
+	size_t orig_size = size;
+	int ret = 0;
 
 	if (unlikely(domain->ops->map == NULL))
 		return -ENODEV;
 
-	size         = PAGE_SIZE << gfp_order;
+	/* find out the minimum page size supported */
+	min_pagesz = 1 << __ffs(domain->ops->pgsize_bitmap);
+
+	/*
+	 * both the virtual address and the physical one, as well as
+	 * the size of the mapping, must be aligned (at least) to the
+	 * size of the smallest page supported by the hardware
+	 */
+	if (!IS_ALIGNED(iova | paddr | size, min_pagesz)) {
+		pr_err("unaligned: iova 0x%lx pa 0x%lx size 0x%lx min_pagesz "
+			"0x%x\n", iova, (unsigned long)paddr,
+			(unsigned long)size, min_pagesz);
+		return -EINVAL;
+	}
+
+	pr_debug("map: iova 0x%lx pa 0x%lx size 0x%lx\n", iova,
+				(unsigned long)paddr, (unsigned long)size);
+
+	while (size) {
+		unsigned long pgsize, addr_merge = iova | paddr;
+		unsigned int pgsize_idx;
+
+		/* Max page size that still fits into 'size' */
+		pgsize_idx = __fls(size);
+
+		/* need to consider alignment requirements ? */
+		if (likely(addr_merge)) {
+			/* Max page size allowed by both iova and paddr */
+			unsigned int align_pgsize_idx = __ffs(addr_merge);
+
+			pgsize_idx = min(pgsize_idx, align_pgsize_idx);
+		}
+
+		/* build a mask of acceptable page sizes */
+		pgsize = (1UL << (pgsize_idx + 1)) - 1;
 
-	BUG_ON(!IS_ALIGNED(iova | paddr, size));
+		/* throw away page sizes not supported by the hardware */
+		pgsize &= domain->ops->pgsize_bitmap;
 
-	return domain->ops->map(domain, iova, paddr, gfp_order, prot);
+		/* make sure we're still sane */
+		BUG_ON(!pgsize);
+
+		/* pick the biggest page */
+		pgsize_idx = __fls(pgsize);
+		pgsize = 1UL << pgsize_idx;
+
+		pr_debug("mapping: iova 0x%lx pa 0x%lx pgsize %lu\n", iova,
+					(unsigned long)paddr, pgsize);
+
+		ret = domain->ops->map(domain, iova, paddr, pgsize, prot);
+		if (ret)
+			break;
+
+		iova += pgsize;
+		paddr += pgsize;
+		size -= pgsize;
+	}
+
+	/* unroll mapping in case something went wrong */
+	if (ret)
+		iommu_unmap(domain, orig_iova, orig_size - size);
+
+	return ret;
 }
 EXPORT_SYMBOL_GPL(iommu_map);
 
-int iommu_unmap(struct iommu_domain *domain, unsigned long iova, int gfp_order)
+size_t iommu_unmap(struct iommu_domain *domain, unsigned long iova, size_t size)
 {
-	size_t size;
+	size_t unmapped_page, unmapped = 0;
+	unsigned int min_pagesz;
 
 	if (unlikely(domain->ops->unmap == NULL))
 		return -ENODEV;
 
-	size         = PAGE_SIZE << gfp_order;
+	/* find out the minimum page size supported */
+	min_pagesz = 1 << __ffs(domain->ops->pgsize_bitmap);
+
+	/*
+	 * The virtual address, as well as the size of the mapping, must be
+	 * aligned (at least) to the size of the smallest page supported
+	 * by the hardware
+	 */
+	if (!IS_ALIGNED(iova | size, min_pagesz)) {
+		pr_err("unaligned: iova 0x%lx size 0x%lx min_pagesz 0x%x\n",
+					iova, (unsigned long)size, min_pagesz);
+		return -EINVAL;
+	}
+
+	pr_debug("unmap this: iova 0x%lx size 0x%lx\n", iova,
+							(unsigned long)size);
+
+	/*
+	 * Keep iterating until we either unmap 'size' bytes (or more)
+	 * or we hit an area that isn't mapped.
+	 */
+	while (unmapped < size) {
+		size_t left = size - unmapped;
+
+		unmapped_page = domain->ops->unmap(domain, iova, left);
+		if (!unmapped_page)
+			break;
+
+		pr_debug("unmapped: iova 0x%lx size %lx\n", iova,
+					(unsigned long)unmapped_page);
+
+		iova += unmapped_page;
+		unmapped += unmapped_page;
+	}
+
+	return unmapped;
+}
+EXPORT_SYMBOL_GPL(iommu_unmap);
 
-	BUG_ON(!IS_ALIGNED(iova, size));
+int iommu_device_group(struct device *dev, unsigned int *groupid)
+{
+	if (iommu_present(dev->bus) && dev->bus->iommu_ops->device_group)
+		return dev->bus->iommu_ops->device_group(dev, groupid);
 
-	return domain->ops->unmap(domain, iova, gfp_order);
+	return -ENODEV;
 }
-EXPORT_SYMBOL_GPL(iommu_unmap);
+EXPORT_SYMBOL_GPL(iommu_device_group);
diff --git a/drivers/iommu/msm_iommu.c b/drivers/iommu/msm_iommu.c
index 5865dd2e28f9..08a90b88e40d 100644
--- a/drivers/iommu/msm_iommu.c
+++ b/drivers/iommu/msm_iommu.c
@@ -42,6 +42,9 @@ __asm__ __volatile__ (							\
 #define RCP15_PRRR(reg)		MRC(reg, p15, 0, c10, c2, 0)
 #define RCP15_NMRR(reg)		MRC(reg, p15, 0, c10, c2, 1)
 
+/* bitmap of the page sizes currently supported */
+#define MSM_IOMMU_PGSIZES	(SZ_4K | SZ_64K | SZ_1M | SZ_16M)
+
 static int msm_iommu_tex_class[4];
 
 DEFINE_SPINLOCK(msm_iommu_lock);
@@ -352,7 +355,7 @@ fail:
 }
 
 static int msm_iommu_map(struct iommu_domain *domain, unsigned long va,
-			 phys_addr_t pa, int order, int prot)
+			 phys_addr_t pa, size_t len, int prot)
 {
 	struct msm_priv *priv;
 	unsigned long flags;
@@ -363,7 +366,6 @@ static int msm_iommu_map(struct iommu_domain *domain, unsigned long va,
 	unsigned long *sl_pte;
 	unsigned long sl_offset;
 	unsigned int pgprot;
-	size_t len = 0x1000UL << order;
 	int ret = 0, tex, sh;
 
 	spin_lock_irqsave(&msm_iommu_lock, flags);
@@ -463,8 +465,8 @@ fail:
 	return ret;
 }
 
-static int msm_iommu_unmap(struct iommu_domain *domain, unsigned long va,
-			    int order)
+static size_t msm_iommu_unmap(struct iommu_domain *domain, unsigned long va,
+			    size_t len)
 {
 	struct msm_priv *priv;
 	unsigned long flags;
@@ -474,7 +476,6 @@ static int msm_iommu_unmap(struct iommu_domain *domain, unsigned long va,
 	unsigned long *sl_table;
 	unsigned long *sl_pte;
 	unsigned long sl_offset;
-	size_t len = 0x1000UL << order;
 	int i, ret = 0;
 
 	spin_lock_irqsave(&msm_iommu_lock, flags);
@@ -544,15 +545,12 @@ static int msm_iommu_unmap(struct iommu_domain *domain, unsigned long va,
 
 	ret = __flush_iotlb(domain);
 
-	/*
-	 * the IOMMU API requires us to return the order of the unmapped
-	 * page (on success).
-	 */
-	if (!ret)
-		ret = order;
 fail:
 	spin_unlock_irqrestore(&msm_iommu_lock, flags);
-	return ret;
+
+	/* the IOMMU API requires us to return how many bytes were unmapped */
+	len = ret ? 0 : len;
+	return len;
 }
 
 static phys_addr_t msm_iommu_iova_to_phys(struct iommu_domain *domain,
@@ -684,7 +682,8 @@ static struct iommu_ops msm_iommu_ops = {
 	.map = msm_iommu_map,
 	.unmap = msm_iommu_unmap,
 	.iova_to_phys = msm_iommu_iova_to_phys,
-	.domain_has_cap = msm_iommu_domain_has_cap
+	.domain_has_cap = msm_iommu_domain_has_cap,
+	.pgsize_bitmap = MSM_IOMMU_PGSIZES,
 };
 
 static int __init get_tex_class(int icp, int ocp, int mt, int nos)
diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c
index 8f32b2bf7587..d8edd979d01b 100644
--- a/drivers/iommu/omap-iommu.c
+++ b/drivers/iommu/omap-iommu.c
@@ -33,6 +33,9 @@
 	     (__i < (n)) && (cr = __iotlb_read_cr((obj), __i), true);	\
 	     __i++)
 
+/* bitmap of the page sizes currently supported */
+#define OMAP_IOMMU_PGSIZES	(SZ_4K | SZ_64K | SZ_1M | SZ_16M)
+
 /**
  * struct omap_iommu_domain - omap iommu domain
  * @pgtable:	the page table
@@ -86,20 +89,24 @@ EXPORT_SYMBOL_GPL(omap_uninstall_iommu_arch);
 
 /**
  * omap_iommu_save_ctx - Save registers for pm off-mode support
- * @obj:	target iommu
+ * @dev:	client device
  **/
-void omap_iommu_save_ctx(struct omap_iommu *obj)
+void omap_iommu_save_ctx(struct device *dev)
 {
+	struct omap_iommu *obj = dev_to_omap_iommu(dev);
+
 	arch_iommu->save_ctx(obj);
 }
 EXPORT_SYMBOL_GPL(omap_iommu_save_ctx);
 
 /**
  * omap_iommu_restore_ctx - Restore registers for pm off-mode support
- * @obj:	target iommu
+ * @dev:	client device
  **/
-void omap_iommu_restore_ctx(struct omap_iommu *obj)
+void omap_iommu_restore_ctx(struct device *dev)
 {
+	struct omap_iommu *obj = dev_to_omap_iommu(dev);
+
 	arch_iommu->restore_ctx(obj);
 }
 EXPORT_SYMBOL_GPL(omap_iommu_restore_ctx);
@@ -820,35 +827,23 @@ static int device_match_by_alias(struct device *dev, void *data)
 }
 
 /**
- * omap_find_iommu_device() - find an omap iommu device by name
- * @name:	name of the iommu device
- *
- * The generic iommu API requires the caller to provide the device
- * he wishes to attach to a certain iommu domain.
- *
- * Drivers generally should not bother with this as it should just
- * be taken care of by the DMA-API using dev_archdata.
- *
- * This function is provided as an interim solution until the latter
- * materializes, and omap3isp is fully migrated to the DMA-API.
- */
-struct device *omap_find_iommu_device(const char *name)
-{
-	return driver_find_device(&omap_iommu_driver.driver, NULL,
-				(void *)name,
-				device_match_by_alias);
-}
-EXPORT_SYMBOL_GPL(omap_find_iommu_device);
-
-/**
  * omap_iommu_attach() - attach iommu device to an iommu domain
- * @dev:	target omap iommu device
+ * @name:	name of target omap iommu device
  * @iopgd:	page table
  **/
-static struct omap_iommu *omap_iommu_attach(struct device *dev, u32 *iopgd)
+static struct omap_iommu *omap_iommu_attach(const char *name, u32 *iopgd)
 {
 	int err = -ENOMEM;
-	struct omap_iommu *obj = to_iommu(dev);
+	struct device *dev;
+	struct omap_iommu *obj;
+
+	dev = driver_find_device(&omap_iommu_driver.driver, NULL,
+				(void *)name,
+				device_match_by_alias);
+	if (!dev)
+		return NULL;
+
+	obj = to_iommu(dev);
 
 	spin_lock(&obj->iommu_lock);
 
@@ -1019,12 +1014,11 @@ static void iopte_cachep_ctor(void *iopte)
 }
 
 static int omap_iommu_map(struct iommu_domain *domain, unsigned long da,
-			 phys_addr_t pa, int order, int prot)
+			 phys_addr_t pa, size_t bytes, int prot)
 {
 	struct omap_iommu_domain *omap_domain = domain->priv;
 	struct omap_iommu *oiommu = omap_domain->iommu_dev;
 	struct device *dev = oiommu->dev;
-	size_t bytes = PAGE_SIZE << order;
 	struct iotlb_entry e;
 	int omap_pgsz;
 	u32 ret, flags;
@@ -1049,19 +1043,16 @@ static int omap_iommu_map(struct iommu_domain *domain, unsigned long da,
 	return ret;
 }
 
-static int omap_iommu_unmap(struct iommu_domain *domain, unsigned long da,
-			    int order)
+static size_t omap_iommu_unmap(struct iommu_domain *domain, unsigned long da,
+			    size_t size)
 {
 	struct omap_iommu_domain *omap_domain = domain->priv;
 	struct omap_iommu *oiommu = omap_domain->iommu_dev;
 	struct device *dev = oiommu->dev;
-	size_t unmap_size;
-
-	dev_dbg(dev, "unmapping da 0x%lx order %d\n", da, order);
 
-	unmap_size = iopgtable_clear_entry(oiommu, da);
+	dev_dbg(dev, "unmapping da 0x%lx size %u\n", da, size);
 
-	return unmap_size ? get_order(unmap_size) : -EINVAL;
+	return iopgtable_clear_entry(oiommu, da);
 }
 
 static int
@@ -1069,6 +1060,7 @@ omap_iommu_attach_dev(struct iommu_domain *domain, struct device *dev)
 {
 	struct omap_iommu_domain *omap_domain = domain->priv;
 	struct omap_iommu *oiommu;
+	struct omap_iommu_arch_data *arch_data = dev->archdata.iommu;
 	int ret = 0;
 
 	spin_lock(&omap_domain->lock);
@@ -1081,14 +1073,14 @@ omap_iommu_attach_dev(struct iommu_domain *domain, struct device *dev)
 	}
 
 	/* get a handle to and enable the omap iommu */
-	oiommu = omap_iommu_attach(dev, omap_domain->pgtable);
+	oiommu = omap_iommu_attach(arch_data->name, omap_domain->pgtable);
 	if (IS_ERR(oiommu)) {
 		ret = PTR_ERR(oiommu);
 		dev_err(dev, "can't get omap iommu: %d\n", ret);
 		goto out;
 	}
 
-	omap_domain->iommu_dev = oiommu;
+	omap_domain->iommu_dev = arch_data->iommu_dev = oiommu;
 	oiommu->domain = domain;
 
 out:
@@ -1100,7 +1092,8 @@ static void omap_iommu_detach_dev(struct iommu_domain *domain,
 				 struct device *dev)
 {
 	struct omap_iommu_domain *omap_domain = domain->priv;
-	struct omap_iommu *oiommu = to_iommu(dev);
+	struct omap_iommu_arch_data *arch_data = dev->archdata.iommu;
+	struct omap_iommu *oiommu = dev_to_omap_iommu(dev);
 
 	spin_lock(&omap_domain->lock);
 
@@ -1114,7 +1107,7 @@ static void omap_iommu_detach_dev(struct iommu_domain *domain,
 
 	omap_iommu_detach(oiommu);
 
-	omap_domain->iommu_dev = NULL;
+	omap_domain->iommu_dev = arch_data->iommu_dev = NULL;
 
 out:
 	spin_unlock(&omap_domain->lock);
@@ -1183,14 +1176,14 @@ static phys_addr_t omap_iommu_iova_to_phys(struct iommu_domain *domain,
 		else if (iopte_is_large(*pte))
 			ret = omap_iommu_translate(*pte, da, IOLARGE_MASK);
 		else
-			dev_err(dev, "bogus pte 0x%x", *pte);
+			dev_err(dev, "bogus pte 0x%x, da 0x%lx", *pte, da);
 	} else {
 		if (iopgd_is_section(*pgd))
 			ret = omap_iommu_translate(*pgd, da, IOSECTION_MASK);
 		else if (iopgd_is_super(*pgd))
 			ret = omap_iommu_translate(*pgd, da, IOSUPER_MASK);
 		else
-			dev_err(dev, "bogus pgd 0x%x", *pgd);
+			dev_err(dev, "bogus pgd 0x%x, da 0x%lx", *pgd, da);
 	}
 
 	return ret;
@@ -1211,6 +1204,7 @@ static struct iommu_ops omap_iommu_ops = {
 	.unmap		= omap_iommu_unmap,
 	.iova_to_phys	= omap_iommu_iova_to_phys,
 	.domain_has_cap	= omap_iommu_domain_has_cap,
+	.pgsize_bitmap	= OMAP_IOMMU_PGSIZES,
 };
 
 static int __init omap_iommu_init(void)
diff --git a/drivers/iommu/omap-iovmm.c b/drivers/iommu/omap-iovmm.c
index 46be456fcc00..2e10c3e0a7ae 100644
--- a/drivers/iommu/omap-iovmm.c
+++ b/drivers/iommu/omap-iovmm.c
@@ -231,12 +231,14 @@ static struct iovm_struct *__find_iovm_area(struct omap_iommu *obj,
 
 /**
  * omap_find_iovm_area  -  find iovma which includes @da
+ * @dev:	client device
  * @da:		iommu device virtual address
  *
  * Find the existing iovma starting at @da
  */
-struct iovm_struct *omap_find_iovm_area(struct omap_iommu *obj, u32 da)
+struct iovm_struct *omap_find_iovm_area(struct device *dev, u32 da)
 {
+	struct omap_iommu *obj = dev_to_omap_iommu(dev);
 	struct iovm_struct *area;
 
 	mutex_lock(&obj->mmap_lock);
@@ -343,14 +345,15 @@ static void free_iovm_area(struct omap_iommu *obj, struct iovm_struct *area)
 
 /**
  * omap_da_to_va - convert (d) to (v)
- * @obj:	objective iommu
+ * @dev:	client device
  * @da:		iommu device virtual address
  * @va:		mpu virtual address
  *
  * Returns mpu virtual addr which corresponds to a given device virtual addr
  */
-void *omap_da_to_va(struct omap_iommu *obj, u32 da)
+void *omap_da_to_va(struct device *dev, u32 da)
 {
+	struct omap_iommu *obj = dev_to_omap_iommu(dev);
 	void *va = NULL;
 	struct iovm_struct *area;
 
@@ -410,7 +413,6 @@ static int map_iovm_area(struct iommu_domain *domain, struct iovm_struct *new,
 	unsigned int i, j;
 	struct scatterlist *sg;
 	u32 da = new->da_start;
-	int order;
 
 	if (!domain || !sgt)
 		return -EINVAL;
@@ -429,12 +431,10 @@ static int map_iovm_area(struct iommu_domain *domain, struct iovm_struct *new,
 		if (bytes_to_iopgsz(bytes) < 0)
 			goto err_out;
 
-		order = get_order(bytes);
-
 		pr_debug("%s: [%d] %08x %08x(%x)\n", __func__,
 			 i, da, pa, bytes);
 
-		err = iommu_map(domain, da, pa, order, flags);
+		err = iommu_map(domain, da, pa, bytes, flags);
 		if (err)
 			goto err_out;
 
@@ -449,10 +449,9 @@ err_out:
 		size_t bytes;
 
 		bytes = sg->length + sg->offset;
-		order = get_order(bytes);
 
 		/* ignore failures.. we're already handling one */
-		iommu_unmap(domain, da, order);
+		iommu_unmap(domain, da, bytes);
 
 		da += bytes;
 	}
@@ -467,7 +466,8 @@ static void unmap_iovm_area(struct iommu_domain *domain, struct omap_iommu *obj,
 	size_t total = area->da_end - area->da_start;
 	const struct sg_table *sgt = area->sgt;
 	struct scatterlist *sg;
-	int i, err;
+	int i;
+	size_t unmapped;
 
 	BUG_ON(!sgtable_ok(sgt));
 	BUG_ON((!total) || !IS_ALIGNED(total, PAGE_SIZE));
@@ -475,13 +475,11 @@ static void unmap_iovm_area(struct iommu_domain *domain, struct omap_iommu *obj,
 	start = area->da_start;
 	for_each_sg(sgt->sgl, sg, sgt->nents, i) {
 		size_t bytes;
-		int order;
 
 		bytes = sg->length + sg->offset;
-		order = get_order(bytes);
 
-		err = iommu_unmap(domain, start, order);
-		if (err < 0)
+		unmapped = iommu_unmap(domain, start, bytes);
+		if (unmapped < bytes)
 			break;
 
 		dev_dbg(obj->dev, "%s: unmap %08x(%x) %08x\n",
@@ -582,16 +580,18 @@ __iommu_vmap(struct iommu_domain *domain, struct omap_iommu *obj,
 
 /**
  * omap_iommu_vmap  -  (d)-(p)-(v) address mapper
- * @obj:	objective iommu
+ * @domain:	iommu domain
+ * @dev:	client device
  * @sgt:	address of scatter gather table
  * @flags:	iovma and page property
  *
  * Creates 1-n-1 mapping with given @sgt and returns @da.
  * All @sgt element must be io page size aligned.
  */
-u32 omap_iommu_vmap(struct iommu_domain *domain, struct omap_iommu *obj, u32 da,
+u32 omap_iommu_vmap(struct iommu_domain *domain, struct device *dev, u32 da,
 		const struct sg_table *sgt, u32 flags)
 {
+	struct omap_iommu *obj = dev_to_omap_iommu(dev);
 	size_t bytes;
 	void *va = NULL;
 
@@ -622,15 +622,17 @@ EXPORT_SYMBOL_GPL(omap_iommu_vmap);
 
 /**
  * omap_iommu_vunmap  -  release virtual mapping obtained by 'omap_iommu_vmap()'
- * @obj:	objective iommu
+ * @domain:	iommu domain
+ * @dev:	client device
  * @da:		iommu device virtual address
  *
  * Free the iommu virtually contiguous memory area starting at
  * @da, which was returned by 'omap_iommu_vmap()'.
  */
 struct sg_table *
-omap_iommu_vunmap(struct iommu_domain *domain, struct omap_iommu *obj, u32 da)
+omap_iommu_vunmap(struct iommu_domain *domain, struct device *dev, u32 da)
 {
+	struct omap_iommu *obj = dev_to_omap_iommu(dev);
 	struct sg_table *sgt;
 	/*
 	 * 'sgt' is allocated before 'omap_iommu_vmalloc()' is called.
@@ -647,7 +649,7 @@ EXPORT_SYMBOL_GPL(omap_iommu_vunmap);
 
 /**
  * omap_iommu_vmalloc  -  (d)-(p)-(v) address allocator and mapper
- * @obj:	objective iommu
+ * @dev:	client device
  * @da:		contiguous iommu virtual memory
  * @bytes:	allocation size
  * @flags:	iovma and page property
@@ -656,9 +658,10 @@ EXPORT_SYMBOL_GPL(omap_iommu_vunmap);
  * @da again, which might be adjusted if 'IOVMF_DA_FIXED' is not set.
  */
 u32
-omap_iommu_vmalloc(struct iommu_domain *domain, struct omap_iommu *obj, u32 da,
+omap_iommu_vmalloc(struct iommu_domain *domain, struct device *dev, u32 da,
 						size_t bytes, u32 flags)
 {
+	struct omap_iommu *obj = dev_to_omap_iommu(dev);
 	void *va;
 	struct sg_table *sgt;
 
@@ -698,15 +701,16 @@ EXPORT_SYMBOL_GPL(omap_iommu_vmalloc);
 
 /**
  * omap_iommu_vfree  -  release memory allocated by 'omap_iommu_vmalloc()'
- * @obj:	objective iommu
+ * @dev:	client device
  * @da:		iommu device virtual address
  *
  * Frees the iommu virtually continuous memory area starting at
  * @da, as obtained from 'omap_iommu_vmalloc()'.
  */
-void omap_iommu_vfree(struct iommu_domain *domain, struct omap_iommu *obj,
+void omap_iommu_vfree(struct iommu_domain *domain, struct device *dev,
 								const u32 da)
 {
+	struct omap_iommu *obj = dev_to_omap_iommu(dev);
 	struct sg_table *sgt;
 
 	sgt = unmap_vm_area(domain, obj, da, vfree,
diff --git a/drivers/leds/Kconfig b/drivers/leds/Kconfig
index 1b75a56ebd08..897a77dfa9d7 100644
--- a/drivers/leds/Kconfig
+++ b/drivers/leds/Kconfig
@@ -388,6 +388,14 @@ config LEDS_RENESAS_TPU
 	  pin function. The latter to support brightness control.
 	  Brightness control is supported but hardware blinking is not.
 
+config LEDS_TCA6507
+	tristate "LED Support for TCA6507 I2C chip"
+	depends on LEDS_CLASS && I2C
+	help
+	  This option enables support for LEDs connected to TC6507
+	  LED driver chips accessed via the I2C bus.
+	  Driver support brightness control and hardware-assisted blinking.
+
 config LEDS_TRIGGERS
 	bool "LED Trigger support"
 	depends on LEDS_CLASS
diff --git a/drivers/leds/Makefile b/drivers/leds/Makefile
index e4f6bf568880..5c9dc4b000d5 100644
--- a/drivers/leds/Makefile
+++ b/drivers/leds/Makefile
@@ -25,6 +25,7 @@ obj-$(CONFIG_LEDS_GPIO)			+= leds-gpio.o
 obj-$(CONFIG_LEDS_LP3944)		+= leds-lp3944.o
 obj-$(CONFIG_LEDS_LP5521)		+= leds-lp5521.o
 obj-$(CONFIG_LEDS_LP5523)		+= leds-lp5523.o
+obj-$(CONFIG_LEDS_TCA6507)		+= leds-tca6507.o
 obj-$(CONFIG_LEDS_CLEVO_MAIL)		+= leds-clevo-mail.o
 obj-$(CONFIG_LEDS_HP6XX)		+= leds-hp6xx.o
 obj-$(CONFIG_LEDS_FSG)			+= leds-fsg.o
diff --git a/drivers/leds/leds-88pm860x.c b/drivers/leds/leds-88pm860x.c
index 0810604dc701..4ca00624bd18 100644
--- a/drivers/leds/leds-88pm860x.c
+++ b/drivers/leds/leds-88pm860x.c
@@ -238,17 +238,7 @@ static struct platform_driver pm860x_led_driver = {
 	.remove	= pm860x_led_remove,
 };
 
-static int __devinit pm860x_led_init(void)
-{
-	return platform_driver_register(&pm860x_led_driver);
-}
-module_init(pm860x_led_init);
-
-static void __devexit pm860x_led_exit(void)
-{
-	platform_driver_unregister(&pm860x_led_driver);
-}
-module_exit(pm860x_led_exit);
+module_platform_driver(pm860x_led_driver);
 
 MODULE_DESCRIPTION("LED driver for Marvell PM860x");
 MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
diff --git a/drivers/leds/leds-adp5520.c b/drivers/leds/leds-adp5520.c
index 7ba4c7b5b97e..b1400db3f839 100644
--- a/drivers/leds/leds-adp5520.c
+++ b/drivers/leds/leds-adp5520.c
@@ -213,17 +213,7 @@ static struct platform_driver adp5520_led_driver = {
 	.remove		= __devexit_p(adp5520_led_remove),
 };
 
-static int __init adp5520_led_init(void)
-{
-	return platform_driver_register(&adp5520_led_driver);
-}
-module_init(adp5520_led_init);
-
-static void __exit adp5520_led_exit(void)
-{
-	platform_driver_unregister(&adp5520_led_driver);
-}
-module_exit(adp5520_led_exit);
+module_platform_driver(adp5520_led_driver);
 
 MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
 MODULE_DESCRIPTION("LEDS ADP5520(01) Driver");
diff --git a/drivers/leds/leds-ams-delta.c b/drivers/leds/leds-ams-delta.c
index 8c00937bf7e7..07428357c83f 100644
--- a/drivers/leds/leds-ams-delta.c
+++ b/drivers/leds/leds-ams-delta.c
@@ -118,18 +118,7 @@ static struct platform_driver ams_delta_led_driver = {
 	},
 };
 
-static int __init ams_delta_led_init(void)
-{
-	return platform_driver_register(&ams_delta_led_driver);
-}
-
-static void __exit ams_delta_led_exit(void)
-{
-	platform_driver_unregister(&ams_delta_led_driver);
-}
-
-module_init(ams_delta_led_init);
-module_exit(ams_delta_led_exit);
+module_platform_driver(ams_delta_led_driver);
 
 MODULE_AUTHOR("Jonathan McDowell <noodles@earth.li>");
 MODULE_DESCRIPTION("Amstrad Delta LED driver");
diff --git a/drivers/leds/leds-asic3.c b/drivers/leds/leds-asic3.c
index 48d9fe61bdfc..525a92492837 100644
--- a/drivers/leds/leds-asic3.c
+++ b/drivers/leds/leds-asic3.c
@@ -179,21 +179,9 @@ static struct platform_driver asic3_led_driver = {
 	},
 };
 
-MODULE_ALIAS("platform:leds-asic3");
-
-static int __init asic3_led_init(void)
-{
-	return platform_driver_register(&asic3_led_driver);
-}
-
-static void __exit asic3_led_exit(void)
-{
-	platform_driver_unregister(&asic3_led_driver);
-}
-
-module_init(asic3_led_init);
-module_exit(asic3_led_exit);
+module_platform_driver(asic3_led_driver);
 
 MODULE_AUTHOR("Paul Parsons <lost.distance@yahoo.com>");
 MODULE_DESCRIPTION("HTC ASIC3 LED driver");
 MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:leds-asic3");
diff --git a/drivers/leds/leds-atmel-pwm.c b/drivers/leds/leds-atmel-pwm.c
index 109c875ea233..800243b6037e 100644
--- a/drivers/leds/leds-atmel-pwm.c
+++ b/drivers/leds/leds-atmel-pwm.c
@@ -134,29 +134,18 @@ static int __exit pwmled_remove(struct platform_device *pdev)
 	return 0;
 }
 
-/* work with hotplug and coldplug */
-MODULE_ALIAS("platform:leds-atmel-pwm");
-
 static struct platform_driver pwmled_driver = {
 	.driver = {
 		.name =		"leds-atmel-pwm",
 		.owner =	THIS_MODULE,
 	},
 	/* REVISIT add suspend() and resume() methods */
+	.probe =	pwmled_probe,
 	.remove =	__exit_p(pwmled_remove),
 };
 
-static int __init modinit(void)
-{
-	return platform_driver_probe(&pwmled_driver, pwmled_probe);
-}
-module_init(modinit);
-
-static void __exit modexit(void)
-{
-	platform_driver_unregister(&pwmled_driver);
-}
-module_exit(modexit);
+module_platform_driver(pwmled_driver);
 
 MODULE_DESCRIPTION("Driver for LEDs with PWM-controlled brightness");
 MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:leds-atmel-pwm");
diff --git a/drivers/leds/leds-bd2802.c b/drivers/leds/leds-bd2802.c
index ea2185531f82..591cbdf5a046 100644
--- a/drivers/leds/leds-bd2802.c
+++ b/drivers/leds/leds-bd2802.c
@@ -688,8 +688,7 @@ static int __devinit bd2802_probe(struct i2c_client *client,
 	i2c_set_clientdata(client, led);
 
 	/* Configure RESET GPIO (L: RESET, H: RESET cancel) */
-	gpio_request(pdata->reset_gpio, "RGB_RESETB");
-	gpio_direction_output(pdata->reset_gpio, 1);
+	gpio_request_one(pdata->reset_gpio, GPIOF_OUT_INIT_HIGH, "RGB_RESETB");
 
 	/* Tacss = min 0.1ms */
 	udelay(100);
@@ -813,17 +812,7 @@ static struct i2c_driver bd2802_i2c_driver = {
 	.id_table	= bd2802_id,
 };
 
-static int __init bd2802_init(void)
-{
-	return i2c_add_driver(&bd2802_i2c_driver);
-}
-module_init(bd2802_init);
-
-static void __exit bd2802_exit(void)
-{
-	i2c_del_driver(&bd2802_i2c_driver);
-}
-module_exit(bd2802_exit);
+module_i2c_driver(bd2802_i2c_driver);
 
 MODULE_AUTHOR("Kim Kyuwon <q1.kim@samsung.com>");
 MODULE_DESCRIPTION("BD2802 LED driver");
diff --git a/drivers/leds/leds-cobalt-qube.c b/drivers/leds/leds-cobalt-qube.c
index da5fb016b1a5..6a8725cc7b4d 100644
--- a/drivers/leds/leds-cobalt-qube.c
+++ b/drivers/leds/leds-cobalt-qube.c
@@ -75,9 +75,6 @@ static int __devexit cobalt_qube_led_remove(struct platform_device *pdev)
 	return 0;
 }
 
-/* work with hotplug and coldplug */
-MODULE_ALIAS("platform:cobalt-qube-leds");
-
 static struct platform_driver cobalt_qube_led_driver = {
 	.probe	= cobalt_qube_led_probe,
 	.remove	= __devexit_p(cobalt_qube_led_remove),
@@ -87,19 +84,9 @@ static struct platform_driver cobalt_qube_led_driver = {
 	},
 };
 
-static int __init cobalt_qube_led_init(void)
-{
-	return platform_driver_register(&cobalt_qube_led_driver);
-}
-
-static void __exit cobalt_qube_led_exit(void)
-{
-	platform_driver_unregister(&cobalt_qube_led_driver);
-}
-
-module_init(cobalt_qube_led_init);
-module_exit(cobalt_qube_led_exit);
+module_platform_driver(cobalt_qube_led_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Front LED support for Cobalt Server");
 MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
+MODULE_ALIAS("platform:cobalt-qube-leds");
diff --git a/drivers/leds/leds-da903x.c b/drivers/leds/leds-da903x.c
index f28931cf6781..d9cd73ebd6c4 100644
--- a/drivers/leds/leds-da903x.c
+++ b/drivers/leds/leds-da903x.c
@@ -158,17 +158,7 @@ static struct platform_driver da903x_led_driver = {
 	.remove		= __devexit_p(da903x_led_remove),
 };
 
-static int __init da903x_led_init(void)
-{
-	return platform_driver_register(&da903x_led_driver);
-}
-module_init(da903x_led_init);
-
-static void __exit da903x_led_exit(void)
-{
-	platform_driver_unregister(&da903x_led_driver);
-}
-module_exit(da903x_led_exit);
+module_platform_driver(da903x_led_driver);
 
 MODULE_DESCRIPTION("LEDs driver for Dialog Semiconductor DA9030/DA9034");
 MODULE_AUTHOR("Eric Miao <eric.miao@marvell.com>"
diff --git a/drivers/leds/leds-dac124s085.c b/drivers/leds/leds-dac124s085.c
index 31cf0d60a9a5..d56c14269ff0 100644
--- a/drivers/leds/leds-dac124s085.c
+++ b/drivers/leds/leds-dac124s085.c
@@ -131,18 +131,7 @@ static struct spi_driver dac124s085_driver = {
 	},
 };
 
-static int __init dac124s085_leds_init(void)
-{
-	return spi_register_driver(&dac124s085_driver);
-}
-
-static void __exit dac124s085_leds_exit(void)
-{
-	spi_unregister_driver(&dac124s085_driver);
-}
-
-module_init(dac124s085_leds_init);
-module_exit(dac124s085_leds_exit);
+module_spi_driver(dac124s085_driver);
 
 MODULE_AUTHOR("Guennadi Liakhovetski <lg@denx.de>");
 MODULE_DESCRIPTION("DAC124S085 LED driver");
diff --git a/drivers/leds/leds-fsg.c b/drivers/leds/leds-fsg.c
index 49aceffaa5b6..b9053fa6e253 100644
--- a/drivers/leds/leds-fsg.c
+++ b/drivers/leds/leds-fsg.c
@@ -224,20 +224,7 @@ static struct platform_driver fsg_led_driver = {
 	},
 };
 
-
-static int __init fsg_led_init(void)
-{
-	return platform_driver_register(&fsg_led_driver);
-}
-
-static void __exit fsg_led_exit(void)
-{
-	platform_driver_unregister(&fsg_led_driver);
-}
-
-
-module_init(fsg_led_init);
-module_exit(fsg_led_exit);
+module_platform_driver(fsg_led_driver);
 
 MODULE_AUTHOR("Rod Whitby <rod@whitby.id.au>");
 MODULE_DESCRIPTION("Freecom FSG-3 LED driver");
diff --git a/drivers/leds/leds-gpio.c b/drivers/leds/leds-gpio.c
index 399a86f2013a..7df74cb97e70 100644
--- a/drivers/leds/leds-gpio.c
+++ b/drivers/leds/leds-gpio.c
@@ -293,21 +293,9 @@ static struct platform_driver gpio_led_driver = {
 	},
 };
 
-MODULE_ALIAS("platform:leds-gpio");
-
-static int __init gpio_led_init(void)
-{
-	return platform_driver_register(&gpio_led_driver);
-}
-
-static void __exit gpio_led_exit(void)
-{
-	platform_driver_unregister(&gpio_led_driver);
-}
-
-module_init(gpio_led_init);
-module_exit(gpio_led_exit);
+module_platform_driver(gpio_led_driver);
 
 MODULE_AUTHOR("Raphael Assenat <raph@8d.com>, Trent Piepho <tpiepho@freescale.com>");
 MODULE_DESCRIPTION("GPIO LED driver");
 MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:leds-gpio");
diff --git a/drivers/leds/leds-hp6xx.c b/drivers/leds/leds-hp6xx.c
index bcfbd3a60eab..366b6055e330 100644
--- a/drivers/leds/leds-hp6xx.c
+++ b/drivers/leds/leds-hp6xx.c
@@ -79,9 +79,6 @@ static int hp6xxled_remove(struct platform_device *pdev)
 	return 0;
 }
 
-/* work with hotplug and coldplug */
-MODULE_ALIAS("platform:hp6xx-led");
-
 static struct platform_driver hp6xxled_driver = {
 	.probe		= hp6xxled_probe,
 	.remove		= hp6xxled_remove,
@@ -91,19 +88,9 @@ static struct platform_driver hp6xxled_driver = {
 	},
 };
 
-static int __init hp6xxled_init(void)
-{
-	return platform_driver_register(&hp6xxled_driver);
-}
-
-static void __exit hp6xxled_exit(void)
-{
-	platform_driver_unregister(&hp6xxled_driver);
-}
-
-module_init(hp6xxled_init);
-module_exit(hp6xxled_exit);
+module_platform_driver(hp6xxled_driver);
 
 MODULE_AUTHOR("Kristoffer Ericson <kristoffer.ericson@gmail.com>");
 MODULE_DESCRIPTION("HP Jornada 6xx LED driver");
 MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:hp6xx-led");
diff --git a/drivers/leds/leds-lm3530.c b/drivers/leds/leds-lm3530.c
index 0630e4f4b286..45e6878d7374 100644
--- a/drivers/leds/leds-lm3530.c
+++ b/drivers/leds/leds-lm3530.c
@@ -457,18 +457,7 @@ static struct i2c_driver lm3530_i2c_driver = {
 	},
 };
 
-static int __init lm3530_init(void)
-{
-	return i2c_add_driver(&lm3530_i2c_driver);
-}
-
-static void __exit lm3530_exit(void)
-{
-	i2c_del_driver(&lm3530_i2c_driver);
-}
-
-module_init(lm3530_init);
-module_exit(lm3530_exit);
+module_i2c_driver(lm3530_i2c_driver);
 
 MODULE_DESCRIPTION("Back Light driver for LM3530");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/leds/leds-lp3944.c b/drivers/leds/leds-lp3944.c
index 9010c054615e..b8f9f0a5d431 100644
--- a/drivers/leds/leds-lp3944.c
+++ b/drivers/leds/leds-lp3944.c
@@ -453,18 +453,7 @@ static struct i2c_driver lp3944_driver = {
 	.id_table = lp3944_id,
 };
 
-static int __init lp3944_module_init(void)
-{
-	return i2c_add_driver(&lp3944_driver);
-}
-
-static void __exit lp3944_module_exit(void)
-{
-	i2c_del_driver(&lp3944_driver);
-}
-
-module_init(lp3944_module_init);
-module_exit(lp3944_module_exit);
+module_i2c_driver(lp3944_driver);
 
 MODULE_AUTHOR("Antonio Ospite <ospite@studenti.unina.it>");
 MODULE_DESCRIPTION("LP3944 Fun Light Chip");
diff --git a/drivers/leds/leds-lp5521.c b/drivers/leds/leds-lp5521.c
index cb641f1b3342..d62a7982a5e6 100644
--- a/drivers/leds/leds-lp5521.c
+++ b/drivers/leds/leds-lp5521.c
@@ -797,25 +797,7 @@ static struct i2c_driver lp5521_driver = {
 	.id_table	= lp5521_id,
 };
 
-static int __init lp5521_init(void)
-{
-	int ret;
-
-	ret = i2c_add_driver(&lp5521_driver);
-
-	if (ret < 0)
-		printk(KERN_ALERT "Adding lp5521 driver failed\n");
-
-	return ret;
-}
-
-static void __exit lp5521_exit(void)
-{
-	i2c_del_driver(&lp5521_driver);
-}
-
-module_init(lp5521_init);
-module_exit(lp5521_exit);
+module_i2c_driver(lp5521_driver);
 
 MODULE_AUTHOR("Mathias Nyman, Yuri Zaporozhets, Samu Onkalo");
 MODULE_DESCRIPTION("LP5521 LED engine");
diff --git a/drivers/leds/leds-lp5523.c b/drivers/leds/leds-lp5523.c
index 5971e309b234..73e791ae7259 100644
--- a/drivers/leds/leds-lp5523.c
+++ b/drivers/leds/leds-lp5523.c
@@ -870,8 +870,6 @@ static int __devinit lp5523_init_led(struct lp5523_led *led, struct device *dev,
 	return 0;
 }
 
-static struct i2c_driver lp5523_driver;
-
 static int __devinit lp5523_probe(struct i2c_client *client,
 			const struct i2c_device_id *id)
 {
@@ -1021,25 +1019,7 @@ static struct i2c_driver lp5523_driver = {
 	.id_table	= lp5523_id,
 };
 
-static int __init lp5523_init(void)
-{
-	int ret;
-
-	ret = i2c_add_driver(&lp5523_driver);
-
-	if (ret < 0)
-		printk(KERN_ALERT "Adding lp5523 driver failed\n");
-
-	return ret;
-}
-
-static void __exit lp5523_exit(void)
-{
-	i2c_del_driver(&lp5523_driver);
-}
-
-module_init(lp5523_init);
-module_exit(lp5523_exit);
+module_i2c_driver(lp5523_driver);
 
 MODULE_AUTHOR("Mathias Nyman <mathias.nyman@nokia.com>");
 MODULE_DESCRIPTION("LP5523 LED engine");
diff --git a/drivers/leds/leds-lt3593.c b/drivers/leds/leds-lt3593.c
index 53f67b8ce55d..e311a96c4469 100644
--- a/drivers/leds/leds-lt3593.c
+++ b/drivers/leds/leds-lt3593.c
@@ -199,21 +199,9 @@ static struct platform_driver lt3593_led_driver = {
 	},
 };
 
-MODULE_ALIAS("platform:leds-lt3593");
-
-static int __init lt3593_led_init(void)
-{
-	return platform_driver_register(&lt3593_led_driver);
-}
-
-static void __exit lt3593_led_exit(void)
-{
-	platform_driver_unregister(&lt3593_led_driver);
-}
-
-module_init(lt3593_led_init);
-module_exit(lt3593_led_exit);
+module_platform_driver(lt3593_led_driver);
 
 MODULE_AUTHOR("Daniel Mack <daniel@caiaq.de>");
 MODULE_DESCRIPTION("LED driver for LT3593 controllers");
 MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:leds-lt3593");
diff --git a/drivers/leds/leds-mc13783.c b/drivers/leds/leds-mc13783.c
index b3393a9f2139..8bc491541550 100644
--- a/drivers/leds/leds-mc13783.c
+++ b/drivers/leds/leds-mc13783.c
@@ -275,7 +275,7 @@ static int __devinit mc13783_led_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
-	if (pdata->num_leds < 1 || pdata->num_leds > MC13783_LED_MAX) {
+	if (pdata->num_leds < 1 || pdata->num_leds > (MC13783_LED_MAX + 1)) {
 		dev_err(&pdev->dev, "Invalid led count %d\n", pdata->num_leds);
 		return -EINVAL;
 	}
@@ -385,17 +385,7 @@ static struct platform_driver mc13783_led_driver = {
 	.remove		= __devexit_p(mc13783_led_remove),
 };
 
-static int __init mc13783_led_init(void)
-{
-	return platform_driver_register(&mc13783_led_driver);
-}
-module_init(mc13783_led_init);
-
-static void __exit mc13783_led_exit(void)
-{
-	platform_driver_unregister(&mc13783_led_driver);
-}
-module_exit(mc13783_led_exit);
+module_platform_driver(mc13783_led_driver);
 
 MODULE_DESCRIPTION("LEDs driver for Freescale MC13783 PMIC");
 MODULE_AUTHOR("Philippe Retornaz <philippe.retornaz@epfl.ch>");
diff --git a/drivers/leds/leds-netxbig.c b/drivers/leds/leds-netxbig.c
index f2e51c134399..d8433f2d53bc 100644
--- a/drivers/leds/leds-netxbig.c
+++ b/drivers/leds/leds-netxbig.c
@@ -81,35 +81,23 @@ static int __devinit gpio_ext_init(struct netxbig_gpio_ext *gpio_ext)
 
 	/* Configure address GPIOs. */
 	for (i = 0; i < gpio_ext->num_addr; i++) {
-		err = gpio_request(gpio_ext->addr[i], "GPIO extension addr");
+		err = gpio_request_one(gpio_ext->addr[i], GPIOF_OUT_INIT_LOW,
+				       "GPIO extension addr");
 		if (err)
 			goto err_free_addr;
-		err = gpio_direction_output(gpio_ext->addr[i], 0);
-		if (err) {
-			gpio_free(gpio_ext->addr[i]);
-			goto err_free_addr;
-		}
 	}
 	/* Configure data GPIOs. */
 	for (i = 0; i < gpio_ext->num_data; i++) {
-		err = gpio_request(gpio_ext->data[i], "GPIO extension data");
+		err = gpio_request_one(gpio_ext->data[i], GPIOF_OUT_INIT_LOW,
+				   "GPIO extension data");
 		if (err)
 			goto err_free_data;
-		err = gpio_direction_output(gpio_ext->data[i], 0);
-		if (err) {
-			gpio_free(gpio_ext->data[i]);
-			goto err_free_data;
-		}
 	}
 	/* Configure "enable select" GPIO. */
-	err = gpio_request(gpio_ext->enable, "GPIO extension enable");
+	err = gpio_request_one(gpio_ext->enable, GPIOF_OUT_INIT_LOW,
+			       "GPIO extension enable");
 	if (err)
 		goto err_free_data;
-	err = gpio_direction_output(gpio_ext->enable, 0);
-	if (err) {
-		gpio_free(gpio_ext->enable);
-		goto err_free_data;
-	}
 
 	return 0;
 
@@ -429,21 +417,10 @@ static struct platform_driver netxbig_led_driver = {
 		.owner	= THIS_MODULE,
 	},
 };
-MODULE_ALIAS("platform:leds-netxbig");
 
-static int __init netxbig_led_init(void)
-{
-	return platform_driver_register(&netxbig_led_driver);
-}
-
-static void __exit netxbig_led_exit(void)
-{
-	platform_driver_unregister(&netxbig_led_driver);
-}
-
-module_init(netxbig_led_init);
-module_exit(netxbig_led_exit);
+module_platform_driver(netxbig_led_driver);
 
 MODULE_AUTHOR("Simon Guinot <sguinot@lacie.com>");
 MODULE_DESCRIPTION("LED driver for LaCie xBig Network boards");
 MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:leds-netxbig");
diff --git a/drivers/leds/leds-ns2.c b/drivers/leds/leds-ns2.c
index 37b7d0cfe586..2f0a14421a73 100644
--- a/drivers/leds/leds-ns2.c
+++ b/drivers/leds/leds-ns2.c
@@ -323,21 +323,10 @@ static struct platform_driver ns2_led_driver = {
 		.owner	= THIS_MODULE,
 	},
 };
-MODULE_ALIAS("platform:leds-ns2");
-
-static int __init ns2_led_init(void)
-{
-	return platform_driver_register(&ns2_led_driver);
-}
 
-static void __exit ns2_led_exit(void)
-{
-	platform_driver_unregister(&ns2_led_driver);
-}
-
-module_init(ns2_led_init);
-module_exit(ns2_led_exit);
+module_platform_driver(ns2_led_driver);
 
 MODULE_AUTHOR("Simon Guinot <sguinot@lacie.com>");
 MODULE_DESCRIPTION("Network Space v2 LED driver");
 MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:leds-ns2");
diff --git a/drivers/leds/leds-pca9532.c b/drivers/leds/leds-pca9532.c
index a2c874623e35..ceccab44b5b8 100644
--- a/drivers/leds/leds-pca9532.c
+++ b/drivers/leds/leds-pca9532.c
@@ -489,20 +489,8 @@ static int pca9532_remove(struct i2c_client *client)
 	return 0;
 }
 
-static int __init pca9532_init(void)
-{
-	return i2c_add_driver(&pca9532_driver);
-}
-
-static void __exit pca9532_exit(void)
-{
-	i2c_del_driver(&pca9532_driver);
-}
+module_i2c_driver(pca9532_driver);
 
 MODULE_AUTHOR("Riku Voipio");
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("PCA 9532 LED dimmer");
-
-module_init(pca9532_init);
-module_exit(pca9532_exit);
-
diff --git a/drivers/leds/leds-pca955x.c b/drivers/leds/leds-pca955x.c
index 66aa3e8e786f..dcc3bc3d38db 100644
--- a/drivers/leds/leds-pca955x.c
+++ b/drivers/leds/leds-pca955x.c
@@ -371,18 +371,7 @@ static struct i2c_driver pca955x_driver = {
 	.id_table = pca955x_id,
 };
 
-static int __init pca955x_leds_init(void)
-{
-	return i2c_add_driver(&pca955x_driver);
-}
-
-static void __exit pca955x_leds_exit(void)
-{
-	i2c_del_driver(&pca955x_driver);
-}
-
-module_init(pca955x_leds_init);
-module_exit(pca955x_leds_exit);
+module_i2c_driver(pca955x_driver);
 
 MODULE_AUTHOR("Nate Case <ncase@xes-inc.com>");
 MODULE_DESCRIPTION("PCA955x LED driver");
diff --git a/drivers/leds/leds-pwm.c b/drivers/leds/leds-pwm.c
index 666daf77872e..3ed92f34bd44 100644
--- a/drivers/leds/leds-pwm.c
+++ b/drivers/leds/leds-pwm.c
@@ -135,18 +135,7 @@ static struct platform_driver led_pwm_driver = {
 	},
 };
 
-static int __init led_pwm_init(void)
-{
-	return platform_driver_register(&led_pwm_driver);
-}
-
-static void __exit led_pwm_exit(void)
-{
-	platform_driver_unregister(&led_pwm_driver);
-}
-
-module_init(led_pwm_init);
-module_exit(led_pwm_exit);
+module_platform_driver(led_pwm_driver);
 
 MODULE_AUTHOR("Luotao Fu <l.fu@pengutronix.de>");
 MODULE_DESCRIPTION("PWM LED driver for PXA");
diff --git a/drivers/leds/leds-rb532.c b/drivers/leds/leds-rb532.c
index c3525f37f73d..a7815b6cd856 100644
--- a/drivers/leds/leds-rb532.c
+++ b/drivers/leds/leds-rb532.c
@@ -57,21 +57,9 @@ static struct platform_driver rb532_led_driver = {
 	},
 };
 
-static int __init rb532_led_init(void)
-{
-	return platform_driver_register(&rb532_led_driver);
-}
-
-static void __exit rb532_led_exit(void)
-{
-	platform_driver_unregister(&rb532_led_driver);
-}
-
-module_init(rb532_led_init);
-module_exit(rb532_led_exit);
-
-MODULE_ALIAS("platform:rb532-led");
+module_platform_driver(rb532_led_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("User LED support for Routerboard532");
 MODULE_AUTHOR("Phil Sutter <n0-1@freewrt.org>");
+MODULE_ALIAS("platform:rb532-led");
diff --git a/drivers/leds/leds-regulator.c b/drivers/leds/leds-regulator.c
index 8497f56f8e46..df7e963bddd3 100644
--- a/drivers/leds/leds-regulator.c
+++ b/drivers/leds/leds-regulator.c
@@ -229,17 +229,7 @@ static struct platform_driver regulator_led_driver = {
 	.remove = __devexit_p(regulator_led_remove),
 };
 
-static int __init regulator_led_init(void)
-{
-	return platform_driver_register(&regulator_led_driver);
-}
-module_init(regulator_led_init);
-
-static void __exit regulator_led_exit(void)
-{
-	platform_driver_unregister(&regulator_led_driver);
-}
-module_exit(regulator_led_exit);
+module_platform_driver(regulator_led_driver);
 
 MODULE_AUTHOR("Antonio Ospite <ospite@studenti.unina.it>");
 MODULE_DESCRIPTION("Regulator driven LED driver");
diff --git a/drivers/leds/leds-renesas-tpu.c b/drivers/leds/leds-renesas-tpu.c
index 3ee540eb127e..32fe337d5c68 100644
--- a/drivers/leds/leds-renesas-tpu.c
+++ b/drivers/leds/leds-renesas-tpu.c
@@ -339,18 +339,7 @@ static struct platform_driver r_tpu_device_driver = {
 	}
 };
 
-static int __init r_tpu_init(void)
-{
-	return platform_driver_register(&r_tpu_device_driver);
-}
-
-static void __exit r_tpu_exit(void)
-{
-	platform_driver_unregister(&r_tpu_device_driver);
-}
-
-module_init(r_tpu_init);
-module_exit(r_tpu_exit);
+module_platform_driver(r_tpu_device_driver);
 
 MODULE_AUTHOR("Magnus Damm");
 MODULE_DESCRIPTION("Renesas TPU LED Driver");
diff --git a/drivers/leds/leds-s3c24xx.c b/drivers/leds/leds-s3c24xx.c
index 29f8b0f0e2c6..bd0a5ed49c42 100644
--- a/drivers/leds/leds-s3c24xx.c
+++ b/drivers/leds/leds-s3c24xx.c
@@ -121,18 +121,7 @@ static struct platform_driver s3c24xx_led_driver = {
 	},
 };
 
-static int __init s3c24xx_led_init(void)
-{
-	return platform_driver_register(&s3c24xx_led_driver);
-}
-
-static void __exit s3c24xx_led_exit(void)
-{
-	platform_driver_unregister(&s3c24xx_led_driver);
-}
-
-module_init(s3c24xx_led_init);
-module_exit(s3c24xx_led_exit);
+module_platform_driver(s3c24xx_led_driver);
 
 MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
 MODULE_DESCRIPTION("S3C24XX LED driver");
diff --git a/drivers/leds/leds-tca6507.c b/drivers/leds/leds-tca6507.c
new file mode 100644
index 000000000000..133f89fb7071
--- /dev/null
+++ b/drivers/leds/leds-tca6507.c
@@ -0,0 +1,779 @@
+/*
+ * leds-tca6507
+ *
+ * The TCA6507 is a programmable LED controller that can drive 7
+ * separate lines either by holding them low, or by pulsing them
+ * with modulated width.
+ * The modulation can be varied in a simple pattern to produce a blink or
+ * double-blink.
+ *
+ * This driver can configure each line either as a 'GPIO' which is out-only
+ * (no pull-up) or as an LED with variable brightness and hardware-assisted
+ * blinking.
+ *
+ * Apart from OFF and ON there are three programmable brightness levels which
+ * can be programmed from 0 to 15 and indicate how many 500usec intervals in
+ * each 8msec that the led is 'on'.  The levels are named MASTER, BANK0 and
+ * BANK1.
+ *
+ * There are two different blink rates that can be programmed, each with
+ * separate time for rise, on, fall, off and second-off.  Thus if 3 or more
+ * different non-trivial rates are required, software must be used for the extra
+ * rates. The two different blink rates must align with the two levels BANK0 and
+ * BANK1.
+ * This driver does not support double-blink so 'second-off' always matches
+ * 'off'.
+ *
+ * Only 16 different times can be programmed in a roughly logarithmic scale from
+ * 64ms to 16320ms.  To be precise the possible times are:
+ *    0, 64, 128, 192, 256, 384, 512, 768,
+ *    1024, 1536, 2048, 3072, 4096, 5760, 8128, 16320
+ *
+ * Times that cannot be closely matched with these must be
+ * handled in software.  This driver allows 12.5% error in matching.
+ *
+ * This driver does not allow rise/fall rates to be set explicitly.  When trying
+ * to match a given 'on' or 'off' period, an appropriate pair of 'change' and
+ * 'hold' times are chosen to get a close match.  If the target delay is even,
+ * the 'change' number will be the smaller; if odd, the 'hold' number will be
+ * the smaller.
+
+ * Choosing pairs of delays with 12.5% errors allows us to match delays in the
+ * ranges: 56-72, 112-144, 168-216, 224-27504, 28560-36720.
+ * 26% of the achievable sums can be matched by multiple pairings. For example
+ * 1536 == 1536+0, 1024+512, or 768+768.  This driver will always choose the
+ * pairing with the least maximum - 768+768 in this case.  Other pairings are
+ * not available.
+ *
+ * Access to the 3 levels and 2 blinks are on a first-come, first-served basis.
+ * Access can be shared by multiple leds if they have the same level and
+ * either same blink rates, or some don't blink.
+ * When a led changes, it relinquishes access and tries again, so it might
+ * lose access to hardware blink.
+ * If a blink engine cannot be allocated, software blink is used.
+ * If the desired brightness cannot be allocated, the closest available non-zero
+ * brightness is used.  As 'full' is always available, the worst case would be
+ * to have two different blink rates at '1', with Max at '2', then other leds
+ * will have to choose between '2' and '16'.  Hopefully this is not likely.
+ *
+ * Each bank (BANK0 and BANK1) has two usage counts - LEDs using the brightness
+ * and LEDs using the blink.  It can only be reprogrammed when the appropriate
+ * counter is zero.  The MASTER level has a single usage count.
+ *
+ * Each Led has programmable 'on' and 'off' time as milliseconds.  With each
+ * there is a flag saying if it was explicitly requested or defaulted.
+ * Similarly the banks know if each time was explicit or a default.  Defaults
+ * are permitted to be changed freely - they are not recognised when matching.
+ *
+ *
+ * An led-tca6507 device must be provided with platform data.  This data
+ * lists for each output: the name, default trigger, and whether the signal
+ * is being used as a GPiO rather than an led.  'struct led_plaform_data'
+ * is used for this.  If 'name' is NULL, the output isn't used.  If 'flags'
+ * is TCA6507_MAKE_CPIO, the output is a GPO.
+ * The "struct led_platform_data" can be embedded in a
+ * "struct tca6507_platform_data" which adds a 'gpio_base' for the GPiOs,
+ * and a 'setup' callback which is called once the GPiOs are available.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/leds.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/gpio.h>
+#include <linux/workqueue.h>
+#include <linux/leds-tca6507.h>
+
+/* LED select registers determine the source that drives LED outputs */
+#define TCA6507_LS_LED_OFF	0x0	/* Output HI-Z (off) */
+#define TCA6507_LS_LED_OFF1	0x1	/* Output HI-Z (off) - not used */
+#define TCA6507_LS_LED_PWM0	0x2	/* Output LOW with Bank0 rate */
+#define TCA6507_LS_LED_PWM1	0x3	/* Output LOW with Bank1 rate */
+#define TCA6507_LS_LED_ON	0x4	/* Output LOW (on) */
+#define TCA6507_LS_LED_MIR	0x5	/* Output LOW with Master Intensity */
+#define TCA6507_LS_BLINK0	0x6	/* Blink at Bank0 rate */
+#define TCA6507_LS_BLINK1	0x7	/* Blink at Bank1 rate */
+
+enum {
+	BANK0,
+	BANK1,
+	MASTER,
+};
+static int bank_source[3] = {
+	TCA6507_LS_LED_PWM0,
+	TCA6507_LS_LED_PWM1,
+	TCA6507_LS_LED_MIR,
+};
+static int blink_source[2] = {
+	TCA6507_LS_BLINK0,
+	TCA6507_LS_BLINK1,
+};
+
+/* PWM registers */
+#define	TCA6507_REG_CNT			11
+
+/*
+ * 0x00, 0x01, 0x02 encode the TCA6507_LS_* values, each output
+ * owns one bit in each register
+ */
+#define	TCA6507_FADE_ON			0x03
+#define	TCA6507_FULL_ON			0x04
+#define	TCA6507_FADE_OFF		0x05
+#define	TCA6507_FIRST_OFF		0x06
+#define	TCA6507_SECOND_OFF		0x07
+#define	TCA6507_MAX_INTENSITY		0x08
+#define	TCA6507_MASTER_INTENSITY	0x09
+#define	TCA6507_INITIALIZE		0x0A
+
+#define	INIT_CODE			0x8
+
+#define TIMECODES 16
+static int time_codes[TIMECODES] = {
+	0, 64, 128, 192, 256, 384, 512, 768,
+	1024, 1536, 2048, 3072, 4096, 5760, 8128, 16320
+};
+
+/* Convert an led.brightness level (0..255) to a TCA6507 level (0..15) */
+static inline int TO_LEVEL(int brightness)
+{
+	return brightness >> 4;
+}
+
+/* ...and convert back */
+static inline int TO_BRIGHT(int level)
+{
+	if (level)
+		return (level << 4) | 0xf;
+	return 0;
+}
+
+#define NUM_LEDS 7
+struct tca6507_chip {
+	int			reg_set;	/* One bit per register where
+						 * a '1' means the register
+						 * should be written */
+	u8			reg_file[TCA6507_REG_CNT];
+	/* Bank 2 is Master Intensity and doesn't use times */
+	struct bank {
+		int level;
+		int ontime, offtime;
+		int on_dflt, off_dflt;
+		int time_use, level_use;
+	} bank[3];
+	struct i2c_client	*client;
+	struct work_struct	work;
+	spinlock_t		lock;
+
+	struct tca6507_led {
+		struct tca6507_chip	*chip;
+		struct led_classdev	led_cdev;
+		int			num;
+		int			ontime, offtime;
+		int			on_dflt, off_dflt;
+		int			bank;	/* Bank used, or -1 */
+		int			blink;	/* Set if hardware-blinking */
+	} leds[NUM_LEDS];
+#ifdef CONFIG_GPIOLIB
+	struct gpio_chip		gpio;
+	const char			*gpio_name[NUM_LEDS];
+	int				gpio_map[NUM_LEDS];
+#endif
+};
+
+static const struct i2c_device_id tca6507_id[] = {
+	{ "tca6507" },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, tca6507_id);
+
+static int choose_times(int msec, int *c1p, int *c2p)
+{
+	/*
+	 * Choose two timecodes which add to 'msec' as near as possible.
+	 * The first returned is the 'on' or 'off' time.  The second is to be
+	 * used as a 'fade-on' or 'fade-off' time.  If 'msec' is even,
+	 * the first will not be smaller than the second.  If 'msec' is odd,
+	 * the first will not be larger than the second.
+	 * If we cannot get a sum within 1/8 of 'msec' fail with -EINVAL,
+	 * otherwise return the sum that was achieved, plus 1 if the first is
+	 * smaller.
+	 * If two possibilities are equally good (e.g. 512+0, 256+256), choose
+	 * the first pair so there is more change-time visible (i.e. it is
+	 * softer).
+	 */
+	int c1, c2;
+	int tmax = msec * 9 / 8;
+	int tmin = msec * 7 / 8;
+	int diff = 65536;
+
+	/* We start at '1' to ensure we never even think of choosing a
+	 * total time of '0'.
+	 */
+	for (c1 = 1; c1 < TIMECODES; c1++) {
+		int t = time_codes[c1];
+		if (t*2 < tmin)
+			continue;
+		if (t > tmax)
+			break;
+		for (c2 = 0; c2 <= c1; c2++) {
+			int tt = t + time_codes[c2];
+			int d;
+			if (tt < tmin)
+				continue;
+			if (tt > tmax)
+				break;
+			/* This works! */
+			d = abs(msec - tt);
+			if (d >= diff)
+				continue;
+			/* Best yet */
+			*c1p = c1;
+			*c2p = c2;
+			diff = d;
+			if (d == 0)
+				return msec;
+		}
+	}
+	if (diff < 65536) {
+		int actual;
+		if (msec & 1) {
+			c1 = *c2p;
+			*c2p = *c1p;
+			*c1p = c1;
+		}
+		actual = time_codes[*c1p] + time_codes[*c2p];
+		if (*c1p < *c2p)
+			return actual + 1;
+		else
+			return actual;
+	}
+	/* No close match */
+	return -EINVAL;
+}
+
+/*
+ * Update the register file with the appropriate 3-bit state for
+ * the given led.
+ */
+static void set_select(struct tca6507_chip *tca, int led, int val)
+{
+	int mask = (1 << led);
+	int bit;
+
+	for (bit = 0; bit < 3; bit++) {
+		int n = tca->reg_file[bit] & ~mask;
+		if (val & (1 << bit))
+			n |= mask;
+		if (tca->reg_file[bit] != n) {
+			tca->reg_file[bit] = n;
+			tca->reg_set |= (1 << bit);
+		}
+	}
+}
+
+/* Update the register file with the appropriate 4-bit code for
+ * one bank or other.  This can be used for timers, for levels, or
+ * for initialisation.
+ */
+static void set_code(struct tca6507_chip *tca, int reg, int bank, int new)
+{
+	int mask = 0xF;
+	int n;
+	if (bank) {
+		mask <<= 4;
+		new <<= 4;
+	}
+	n = tca->reg_file[reg] & ~mask;
+	n |= new;
+	if (tca->reg_file[reg] != n) {
+		tca->reg_file[reg] = n;
+		tca->reg_set |= 1 << reg;
+	}
+}
+
+/* Update brightness level. */
+static void set_level(struct tca6507_chip *tca, int bank, int level)
+{
+	switch (bank) {
+	case BANK0:
+	case BANK1:
+		set_code(tca, TCA6507_MAX_INTENSITY, bank, level);
+		break;
+	case MASTER:
+		set_code(tca, TCA6507_MASTER_INTENSITY, 0, level);
+		break;
+	}
+	tca->bank[bank].level = level;
+}
+
+/* Record all relevant time code for a given bank */
+static void set_times(struct tca6507_chip *tca, int bank)
+{
+	int c1, c2;
+	int result;
+
+	result = choose_times(tca->bank[bank].ontime, &c1, &c2);
+	dev_dbg(&tca->client->dev,
+		"Chose on  times %d(%d) %d(%d) for %dms\n", c1, time_codes[c1],
+		c2, time_codes[c2], tca->bank[bank].ontime);
+	set_code(tca, TCA6507_FADE_ON, bank, c2);
+	set_code(tca, TCA6507_FULL_ON, bank, c1);
+	tca->bank[bank].ontime = result;
+
+	result = choose_times(tca->bank[bank].offtime, &c1, &c2);
+	dev_dbg(&tca->client->dev,
+		"Chose off times %d(%d) %d(%d) for %dms\n", c1, time_codes[c1],
+		c2, time_codes[c2], tca->bank[bank].offtime);
+	set_code(tca, TCA6507_FADE_OFF, bank, c2);
+	set_code(tca, TCA6507_FIRST_OFF, bank, c1);
+	set_code(tca, TCA6507_SECOND_OFF, bank, c1);
+	tca->bank[bank].offtime = result;
+
+	set_code(tca, TCA6507_INITIALIZE, bank, INIT_CODE);
+}
+
+/* Write all needed register of tca6507 */
+
+static void tca6507_work(struct work_struct *work)
+{
+	struct tca6507_chip *tca = container_of(work, struct tca6507_chip,
+						work);
+	struct i2c_client *cl = tca->client;
+	int set;
+	u8 file[TCA6507_REG_CNT];
+	int r;
+
+	spin_lock_irq(&tca->lock);
+	set = tca->reg_set;
+	memcpy(file, tca->reg_file, TCA6507_REG_CNT);
+	tca->reg_set = 0;
+	spin_unlock_irq(&tca->lock);
+
+	for (r = 0; r < TCA6507_REG_CNT; r++)
+		if (set & (1<<r))
+			i2c_smbus_write_byte_data(cl, r, file[r]);
+}
+
+static void led_release(struct tca6507_led *led)
+{
+	/* If led owns any resource, release it. */
+	struct tca6507_chip *tca = led->chip;
+	if (led->bank >= 0) {
+		struct bank *b = tca->bank + led->bank;
+		if (led->blink)
+			b->time_use--;
+		b->level_use--;
+	}
+	led->blink = 0;
+	led->bank = -1;
+}
+
+static int led_prepare(struct tca6507_led *led)
+{
+	/* Assign this led to a bank, configuring that bank if necessary. */
+	int level = TO_LEVEL(led->led_cdev.brightness);
+	struct tca6507_chip *tca = led->chip;
+	int c1, c2;
+	int i;
+	struct bank *b;
+	int need_init = 0;
+
+	led->led_cdev.brightness = TO_BRIGHT(level);
+	if (level == 0) {
+		set_select(tca, led->num, TCA6507_LS_LED_OFF);
+		return 0;
+	}
+
+	if (led->ontime == 0 || led->offtime == 0) {
+		/*
+		 * Just set the brightness, choosing first usable bank.
+		 * If none perfect, choose best.
+		 * Count backwards so we check MASTER bank first
+		 * to avoid wasting a timer.
+		 */
+		int best = -1;/* full-on */
+		int diff = 15-level;
+
+		if (level == 15) {
+			set_select(tca, led->num, TCA6507_LS_LED_ON);
+			return 0;
+		}
+
+		for (i = MASTER; i >= BANK0; i--) {
+			int d;
+			if (tca->bank[i].level == level ||
+			    tca->bank[i].level_use == 0) {
+				best = i;
+				break;
+			}
+			d = abs(level - tca->bank[i].level);
+			if (d < diff) {
+				diff = d;
+				best = i;
+			}
+		}
+		if (best == -1) {
+			/* Best brightness is full-on */
+			set_select(tca, led->num, TCA6507_LS_LED_ON);
+			led->led_cdev.brightness = LED_FULL;
+			return 0;
+		}
+
+		if (!tca->bank[best].level_use)
+			set_level(tca, best, level);
+
+		tca->bank[best].level_use++;
+		led->bank = best;
+		set_select(tca, led->num, bank_source[best]);
+		led->led_cdev.brightness = TO_BRIGHT(tca->bank[best].level);
+		return 0;
+	}
+
+	/*
+	 * We have on/off time so we need to try to allocate a timing bank.
+	 * First check if times are compatible with hardware and give up if
+	 * not.
+	 */
+	if (choose_times(led->ontime, &c1, &c2) < 0)
+		return -EINVAL;
+	if (choose_times(led->offtime, &c1, &c2) < 0)
+		return -EINVAL;
+
+	for (i = BANK0; i <= BANK1; i++) {
+		if (tca->bank[i].level_use == 0)
+			/* not in use - it is ours! */
+			break;
+		if (tca->bank[i].level != level)
+			/* Incompatible level - skip */
+			/* FIX: if timer matches we maybe should consider
+			 * this anyway...
+			 */
+			continue;
+
+		if (tca->bank[i].time_use == 0)
+			/* Timer not in use, and level matches - use it */
+			break;
+
+		if (!(tca->bank[i].on_dflt ||
+		      led->on_dflt ||
+		      tca->bank[i].ontime == led->ontime))
+			/* on time is incompatible */
+			continue;
+
+		if (!(tca->bank[i].off_dflt ||
+		      led->off_dflt ||
+		      tca->bank[i].offtime == led->offtime))
+			/* off time is incompatible */
+			continue;
+
+		/* looks like a suitable match */
+		break;
+	}
+
+	if (i > BANK1)
+		/* Nothing matches - how sad */
+		return -EINVAL;
+
+	b = &tca->bank[i];
+	if (b->level_use == 0)
+		set_level(tca, i, level);
+	b->level_use++;
+	led->bank = i;
+
+	if (b->on_dflt ||
+	    !led->on_dflt ||
+	    b->time_use == 0) {
+		b->ontime = led->ontime;
+		b->on_dflt = led->on_dflt;
+		need_init = 1;
+	}
+
+	if (b->off_dflt ||
+	    !led->off_dflt ||
+	    b->time_use == 0) {
+		b->offtime = led->offtime;
+		b->off_dflt = led->off_dflt;
+		need_init = 1;
+	}
+
+	if (need_init)
+		set_times(tca, i);
+
+	led->ontime = b->ontime;
+	led->offtime = b->offtime;
+
+	b->time_use++;
+	led->blink = 1;
+	led->led_cdev.brightness = TO_BRIGHT(b->level);
+	set_select(tca, led->num, blink_source[i]);
+	return 0;
+}
+
+static int led_assign(struct tca6507_led *led)
+{
+	struct tca6507_chip *tca = led->chip;
+	int err;
+	unsigned long flags;
+
+	spin_lock_irqsave(&tca->lock, flags);
+	led_release(led);
+	err = led_prepare(led);
+	if (err) {
+		/*
+		 * Can only fail on timer setup.  In that case we need to
+		 * re-establish as steady level.
+		 */
+		led->ontime = 0;
+		led->offtime = 0;
+		led_prepare(led);
+	}
+	spin_unlock_irqrestore(&tca->lock, flags);
+
+	if (tca->reg_set)
+		schedule_work(&tca->work);
+	return err;
+}
+
+static void tca6507_brightness_set(struct led_classdev *led_cdev,
+				   enum led_brightness brightness)
+{
+	struct tca6507_led *led = container_of(led_cdev, struct tca6507_led,
+					       led_cdev);
+	led->led_cdev.brightness = brightness;
+	led->ontime = 0;
+	led->offtime = 0;
+	led_assign(led);
+}
+
+static int tca6507_blink_set(struct led_classdev *led_cdev,
+			     unsigned long *delay_on,
+			     unsigned long *delay_off)
+{
+	struct tca6507_led *led = container_of(led_cdev, struct tca6507_led,
+					       led_cdev);
+
+	if (*delay_on == 0)
+		led->on_dflt = 1;
+	else if (delay_on != &led_cdev->blink_delay_on)
+		led->on_dflt = 0;
+	led->ontime = *delay_on;
+
+	if (*delay_off == 0)
+		led->off_dflt = 1;
+	else if (delay_off != &led_cdev->blink_delay_off)
+		led->off_dflt = 0;
+	led->offtime = *delay_off;
+
+	if (led->ontime == 0)
+		led->ontime = 512;
+	if (led->offtime == 0)
+		led->offtime = 512;
+
+	if (led->led_cdev.brightness == LED_OFF)
+		led->led_cdev.brightness = LED_FULL;
+	if (led_assign(led) < 0) {
+		led->ontime = 0;
+		led->offtime = 0;
+		led->led_cdev.brightness = LED_OFF;
+		return -EINVAL;
+	}
+	*delay_on = led->ontime;
+	*delay_off = led->offtime;
+	return 0;
+}
+
+#ifdef CONFIG_GPIOLIB
+static void tca6507_gpio_set_value(struct gpio_chip *gc,
+				   unsigned offset, int val)
+{
+	struct tca6507_chip *tca = container_of(gc, struct tca6507_chip, gpio);
+	unsigned long flags;
+
+	spin_lock_irqsave(&tca->lock, flags);
+	/*
+	 * 'OFF' is floating high, and 'ON' is pulled down, so it has the
+	 * inverse sense of 'val'.
+	 */
+	set_select(tca, tca->gpio_map[offset],
+		   val ? TCA6507_LS_LED_OFF : TCA6507_LS_LED_ON);
+	spin_unlock_irqrestore(&tca->lock, flags);
+	if (tca->reg_set)
+		schedule_work(&tca->work);
+}
+
+static int tca6507_gpio_direction_output(struct gpio_chip *gc,
+					  unsigned offset, int val)
+{
+	tca6507_gpio_set_value(gc, offset, val);
+	return 0;
+}
+
+static int tca6507_probe_gpios(struct i2c_client *client,
+			       struct tca6507_chip *tca,
+			       struct tca6507_platform_data *pdata)
+{
+	int err;
+	int i = 0;
+	int gpios = 0;
+
+	for (i = 0; i < NUM_LEDS; i++)
+		if (pdata->leds.leds[i].name && pdata->leds.leds[i].flags) {
+			/* Configure as a gpio */
+			tca->gpio_name[gpios] = pdata->leds.leds[i].name;
+			tca->gpio_map[gpios] = i;
+			gpios++;
+		}
+
+	if (!gpios)
+		return 0;
+
+	tca->gpio.label = "gpio-tca6507";
+	tca->gpio.names = tca->gpio_name;
+	tca->gpio.ngpio = gpios;
+	tca->gpio.base = pdata->gpio_base;
+	tca->gpio.owner = THIS_MODULE;
+	tca->gpio.direction_output = tca6507_gpio_direction_output;
+	tca->gpio.set = tca6507_gpio_set_value;
+	tca->gpio.dev = &client->dev;
+	err = gpiochip_add(&tca->gpio);
+	if (err) {
+		tca->gpio.ngpio = 0;
+		return err;
+	}
+	if (pdata->setup)
+		pdata->setup(tca->gpio.base, tca->gpio.ngpio);
+	return 0;
+}
+
+static void tca6507_remove_gpio(struct tca6507_chip *tca)
+{
+	if (tca->gpio.ngpio) {
+		int err = gpiochip_remove(&tca->gpio);
+		dev_err(&tca->client->dev, "%s failed, %d\n",
+			"gpiochip_remove()", err);
+	}
+}
+#else /* CONFIG_GPIOLIB */
+static int tca6507_probe_gpios(struct i2c_client *client,
+			       struct tca6507_chip *tca,
+			       struct tca6507_platform_data *pdata)
+{
+	return 0;
+}
+static void tca6507_remove_gpio(struct tca6507_chip *tca)
+{
+}
+#endif /* CONFIG_GPIOLIB */
+
+static int __devinit tca6507_probe(struct i2c_client *client,
+				   const struct i2c_device_id *id)
+{
+	struct tca6507_chip *tca;
+	struct i2c_adapter *adapter;
+	struct tca6507_platform_data *pdata;
+	int err;
+	int i = 0;
+
+	adapter = to_i2c_adapter(client->dev.parent);
+	pdata = client->dev.platform_data;
+
+	if (!i2c_check_functionality(adapter, I2C_FUNC_I2C))
+		return -EIO;
+
+	if (!pdata || pdata->leds.num_leds != NUM_LEDS) {
+		dev_err(&client->dev, "Need %d entries in platform-data list\n",
+			NUM_LEDS);
+		return -ENODEV;
+	}
+	err = -ENOMEM;
+	tca = kzalloc(sizeof(*tca), GFP_KERNEL);
+	if (!tca)
+		goto exit;
+
+	tca->client = client;
+	INIT_WORK(&tca->work, tca6507_work);
+	spin_lock_init(&tca->lock);
+	i2c_set_clientdata(client, tca);
+
+	for (i = 0; i < NUM_LEDS; i++) {
+		struct tca6507_led *l = tca->leds + i;
+
+		l->chip = tca;
+		l->num = i;
+		if (pdata->leds.leds[i].name && !pdata->leds.leds[i].flags) {
+			l->led_cdev.name = pdata->leds.leds[i].name;
+			l->led_cdev.default_trigger
+				= pdata->leds.leds[i].default_trigger;
+			l->led_cdev.brightness_set = tca6507_brightness_set;
+			l->led_cdev.blink_set = tca6507_blink_set;
+			l->bank = -1;
+			err = led_classdev_register(&client->dev,
+						    &l->led_cdev);
+			if (err < 0)
+				goto exit;
+		}
+	}
+	err = tca6507_probe_gpios(client, tca, pdata);
+	if (err)
+		goto exit;
+	/* set all registers to known state - zero */
+	tca->reg_set = 0x7f;
+	schedule_work(&tca->work);
+
+	return 0;
+exit:
+	while (i--)
+		if (tca->leds[i].led_cdev.name)
+			led_classdev_unregister(&tca->leds[i].led_cdev);
+	cancel_work_sync(&tca->work);
+	i2c_set_clientdata(client, NULL);
+	kfree(tca);
+	return err;
+}
+
+static int __devexit tca6507_remove(struct i2c_client *client)
+{
+	int i;
+	struct tca6507_chip *tca = i2c_get_clientdata(client);
+	struct tca6507_led *tca_leds = tca->leds;
+
+	for (i = 0; i < NUM_LEDS; i++) {
+		if (tca_leds[i].led_cdev.name)
+			led_classdev_unregister(&tca_leds[i].led_cdev);
+	}
+	tca6507_remove_gpio(tca);
+	cancel_work_sync(&tca->work);
+	i2c_set_clientdata(client, NULL);
+	kfree(tca);
+
+	return 0;
+}
+
+static struct i2c_driver tca6507_driver = {
+	.driver   = {
+		.name    = "leds-tca6507",
+		.owner   = THIS_MODULE,
+	},
+	.probe    = tca6507_probe,
+	.remove   = __devexit_p(tca6507_remove),
+	.id_table = tca6507_id,
+};
+
+static int __init tca6507_leds_init(void)
+{
+	return i2c_add_driver(&tca6507_driver);
+}
+
+static void __exit tca6507_leds_exit(void)
+{
+	i2c_del_driver(&tca6507_driver);
+}
+
+module_init(tca6507_leds_init);
+module_exit(tca6507_leds_exit);
+
+MODULE_AUTHOR("NeilBrown <neilb@suse.de>");
+MODULE_DESCRIPTION("TCA6507 LED/GPO driver");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/leds/leds-wm831x-status.c b/drivers/leds/leds-wm831x-status.c
index b1eb34c3e81f..74a24cf897c3 100644
--- a/drivers/leds/leds-wm831x-status.c
+++ b/drivers/leds/leds-wm831x-status.c
@@ -237,7 +237,8 @@ static int wm831x_status_probe(struct platform_device *pdev)
 		goto err;
 	}
 
-	drvdata = kzalloc(sizeof(struct wm831x_status), GFP_KERNEL);
+	drvdata = devm_kzalloc(&pdev->dev, sizeof(struct wm831x_status),
+			       GFP_KERNEL);
 	if (!drvdata)
 		return -ENOMEM;
 	dev_set_drvdata(&pdev->dev, drvdata);
@@ -300,7 +301,6 @@ static int wm831x_status_probe(struct platform_device *pdev)
 
 err_led:
 	led_classdev_unregister(&drvdata->cdev);
-	kfree(drvdata);
 err:
 	return ret;
 }
@@ -311,7 +311,6 @@ static int wm831x_status_remove(struct platform_device *pdev)
 
 	device_remove_file(drvdata->cdev.dev, &dev_attr_src);
 	led_classdev_unregister(&drvdata->cdev);
-	kfree(drvdata);
 
 	return 0;
 }
@@ -325,17 +324,7 @@ static struct platform_driver wm831x_status_driver = {
 	.remove = wm831x_status_remove,
 };
 
-static int __devinit wm831x_status_init(void)
-{
-	return platform_driver_register(&wm831x_status_driver);
-}
-module_init(wm831x_status_init);
-
-static void wm831x_status_exit(void)
-{
-	platform_driver_unregister(&wm831x_status_driver);
-}
-module_exit(wm831x_status_exit);
+module_platform_driver(wm831x_status_driver);
 
 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
 MODULE_DESCRIPTION("WM831x status LED driver");
diff --git a/drivers/leds/leds-wm8350.c b/drivers/leds/leds-wm8350.c
index 4a1276578352..918d4baff1c7 100644
--- a/drivers/leds/leds-wm8350.c
+++ b/drivers/leds/leds-wm8350.c
@@ -227,7 +227,7 @@ static int wm8350_led_probe(struct platform_device *pdev)
 		goto err_isink;
 	}
 
-	led = kzalloc(sizeof(*led), GFP_KERNEL);
+	led = devm_kzalloc(&pdev->dev, sizeof(*led), GFP_KERNEL);
 	if (led == NULL) {
 		ret = -ENOMEM;
 		goto err_dcdc;
@@ -259,12 +259,10 @@ static int wm8350_led_probe(struct platform_device *pdev)
 
 	ret = led_classdev_register(&pdev->dev, &led->cdev);
 	if (ret < 0)
-		goto err_led;
+		goto err_dcdc;
 
 	return 0;
 
- err_led:
-	kfree(led);
  err_dcdc:
 	regulator_put(dcdc);
  err_isink:
@@ -281,7 +279,6 @@ static int wm8350_led_remove(struct platform_device *pdev)
 	wm8350_led_disable(led);
 	regulator_put(led->dcdc);
 	regulator_put(led->isink);
-	kfree(led);
 	return 0;
 }
 
@@ -295,17 +292,7 @@ static struct platform_driver wm8350_led_driver = {
 	.shutdown = wm8350_led_shutdown,
 };
 
-static int __devinit wm8350_led_init(void)
-{
-	return platform_driver_register(&wm8350_led_driver);
-}
-module_init(wm8350_led_init);
-
-static void wm8350_led_exit(void)
-{
-	platform_driver_unregister(&wm8350_led_driver);
-}
-module_exit(wm8350_led_exit);
+module_platform_driver(wm8350_led_driver);
 
 MODULE_AUTHOR("Mark Brown");
 MODULE_DESCRIPTION("WM8350 LED driver");
diff --git a/drivers/media/video/davinci/vpif.h b/drivers/media/video/davinci/vpif.h
index 10550bd93b06..25036cb11bea 100644
--- a/drivers/media/video/davinci/vpif.h
+++ b/drivers/media/video/davinci/vpif.h
@@ -20,6 +20,7 @@
 #include <linux/videodev2.h>
 #include <mach/hardware.h>
 #include <mach/dm646x.h>
+#include <media/davinci/vpif_types.h>
 
 /* Maximum channel allowed */
 #define VPIF_NUM_CHANNELS		(4)
diff --git a/drivers/media/video/davinci/vpif_capture.h b/drivers/media/video/davinci/vpif_capture.h
index 064550f5ce4a..a693d4ebda55 100644
--- a/drivers/media/video/davinci/vpif_capture.h
+++ b/drivers/media/video/davinci/vpif_capture.h
@@ -27,7 +27,7 @@
 #include <media/v4l2-device.h>
 #include <media/videobuf-core.h>
 #include <media/videobuf-dma-contig.h>
-#include <mach/dm646x.h>
+#include <media/davinci/vpif_types.h>
 
 #include "vpif.h"
 
diff --git a/drivers/media/video/davinci/vpif_display.h b/drivers/media/video/davinci/vpif_display.h
index 5d1936dafed2..56879d1a0684 100644
--- a/drivers/media/video/davinci/vpif_display.h
+++ b/drivers/media/video/davinci/vpif_display.h
@@ -22,6 +22,7 @@
 #include <media/v4l2-device.h>
 #include <media/videobuf-core.h>
 #include <media/videobuf-dma-contig.h>
+#include <media/davinci/vpif_types.h>
 
 #include "vpif.h"
 
diff --git a/drivers/media/video/omap3isp/isp.c b/drivers/media/video/omap3isp/isp.c
index b818cacf420f..d4c48ef227fb 100644
--- a/drivers/media/video/omap3isp/isp.c
+++ b/drivers/media/video/omap3isp/isp.c
@@ -80,13 +80,6 @@
 #include "isph3a.h"
 #include "isphist.h"
 
-/*
- * this is provided as an interim solution until omap3isp doesn't need
- * any omap-specific iommu API
- */
-#define to_iommu(dev)							\
-	(struct omap_iommu *)platform_get_drvdata(to_platform_device(dev))
-
 static unsigned int autoidle;
 module_param(autoidle, int, 0444);
 MODULE_PARM_DESC(autoidle, "Enable OMAP3ISP AUTOIDLE support");
@@ -1114,8 +1107,7 @@ isp_restore_context(struct isp_device *isp, struct isp_reg *reg_list)
 static void isp_save_ctx(struct isp_device *isp)
 {
 	isp_save_context(isp, isp_reg_list);
-	if (isp->iommu)
-		omap_iommu_save_ctx(isp->iommu);
+	omap_iommu_save_ctx(isp->dev);
 }
 
 /*
@@ -1128,8 +1120,7 @@ static void isp_save_ctx(struct isp_device *isp)
 static void isp_restore_ctx(struct isp_device *isp)
 {
 	isp_restore_context(isp, isp_reg_list);
-	if (isp->iommu)
-		omap_iommu_restore_ctx(isp->iommu);
+	omap_iommu_restore_ctx(isp->dev);
 	omap3isp_ccdc_restore_context(isp);
 	omap3isp_preview_restore_context(isp);
 }
@@ -1983,7 +1974,7 @@ static int isp_remove(struct platform_device *pdev)
 	isp_cleanup_modules(isp);
 
 	omap3isp_get(isp);
-	iommu_detach_device(isp->domain, isp->iommu_dev);
+	iommu_detach_device(isp->domain, &pdev->dev);
 	iommu_domain_free(isp->domain);
 	omap3isp_put(isp);
 
@@ -2131,17 +2122,6 @@ static int isp_probe(struct platform_device *pdev)
 		}
 	}
 
-	/* IOMMU */
-	isp->iommu_dev = omap_find_iommu_device("isp");
-	if (!isp->iommu_dev) {
-		dev_err(isp->dev, "omap_find_iommu_device failed\n");
-		ret = -ENODEV;
-		goto error_isp;
-	}
-
-	/* to be removed once iommu migration is complete */
-	isp->iommu = to_iommu(isp->iommu_dev);
-
 	isp->domain = iommu_domain_alloc(pdev->dev.bus);
 	if (!isp->domain) {
 		dev_err(isp->dev, "can't alloc iommu domain\n");
@@ -2149,7 +2129,7 @@ static int isp_probe(struct platform_device *pdev)
 		goto error_isp;
 	}
 
-	ret = iommu_attach_device(isp->domain, isp->iommu_dev);
+	ret = iommu_attach_device(isp->domain, &pdev->dev);
 	if (ret) {
 		dev_err(&pdev->dev, "can't attach iommu device: %d\n", ret);
 		goto free_domain;
@@ -2188,7 +2168,7 @@ error_modules:
 error_irq:
 	free_irq(isp->irq_num, isp);
 detach_dev:
-	iommu_detach_device(isp->domain, isp->iommu_dev);
+	iommu_detach_device(isp->domain, &pdev->dev);
 free_domain:
 	iommu_domain_free(isp->domain);
 error_isp:
diff --git a/drivers/media/video/omap3isp/isp.h b/drivers/media/video/omap3isp/isp.h
index 705946ef4d60..d96603eb0d17 100644
--- a/drivers/media/video/omap3isp/isp.h
+++ b/drivers/media/video/omap3isp/isp.h
@@ -212,9 +212,7 @@ struct isp_device {
 	unsigned int sbl_resources;
 	unsigned int subclk_resources;
 
-	struct omap_iommu *iommu;
 	struct iommu_domain *domain;
-	struct device *iommu_dev;
 
 	struct isp_platform_callback platform_cb;
 };
diff --git a/drivers/media/video/omap3isp/ispccdc.c b/drivers/media/video/omap3isp/ispccdc.c
index 54a4a3f22e2e..d341ba12593f 100644
--- a/drivers/media/video/omap3isp/ispccdc.c
+++ b/drivers/media/video/omap3isp/ispccdc.c
@@ -366,7 +366,7 @@ static void ccdc_lsc_free_request(struct isp_ccdc_device *ccdc,
 		dma_unmap_sg(isp->dev, req->iovm->sgt->sgl,
 			     req->iovm->sgt->nents, DMA_TO_DEVICE);
 	if (req->table)
-		omap_iommu_vfree(isp->domain, isp->iommu, req->table);
+		omap_iommu_vfree(isp->domain, isp->dev, req->table);
 	kfree(req);
 }
 
@@ -438,7 +438,7 @@ static int ccdc_lsc_config(struct isp_ccdc_device *ccdc,
 
 		req->enable = 1;
 
-		req->table = omap_iommu_vmalloc(isp->domain, isp->iommu, 0,
+		req->table = omap_iommu_vmalloc(isp->domain, isp->dev, 0,
 					req->config.size, IOMMU_FLAG);
 		if (IS_ERR_VALUE(req->table)) {
 			req->table = 0;
@@ -446,7 +446,7 @@ static int ccdc_lsc_config(struct isp_ccdc_device *ccdc,
 			goto done;
 		}
 
-		req->iovm = omap_find_iovm_area(isp->iommu, req->table);
+		req->iovm = omap_find_iovm_area(isp->dev, req->table);
 		if (req->iovm == NULL) {
 			ret = -ENOMEM;
 			goto done;
@@ -462,7 +462,7 @@ static int ccdc_lsc_config(struct isp_ccdc_device *ccdc,
 		dma_sync_sg_for_cpu(isp->dev, req->iovm->sgt->sgl,
 				    req->iovm->sgt->nents, DMA_TO_DEVICE);
 
-		table = omap_da_to_va(isp->iommu, req->table);
+		table = omap_da_to_va(isp->dev, req->table);
 		if (copy_from_user(table, config->lsc, req->config.size)) {
 			ret = -EFAULT;
 			goto done;
@@ -734,15 +734,15 @@ static int ccdc_config(struct isp_ccdc_device *ccdc,
 			 * already done by omap_iommu_vmalloc().
 			 */
 			size = ccdc->fpc.fpnum * 4;
-			table_new = omap_iommu_vmalloc(isp->domain, isp->iommu,
+			table_new = omap_iommu_vmalloc(isp->domain, isp->dev,
 							0, size, IOMMU_FLAG);
 			if (IS_ERR_VALUE(table_new))
 				return -ENOMEM;
 
-			if (copy_from_user(omap_da_to_va(isp->iommu, table_new),
+			if (copy_from_user(omap_da_to_va(isp->dev, table_new),
 					   (__force void __user *)
 					   ccdc->fpc.fpcaddr, size)) {
-				omap_iommu_vfree(isp->domain, isp->iommu,
+				omap_iommu_vfree(isp->domain, isp->dev,
 								table_new);
 				return -EFAULT;
 			}
@@ -753,7 +753,7 @@ static int ccdc_config(struct isp_ccdc_device *ccdc,
 
 		ccdc_configure_fpc(ccdc);
 		if (table_old != 0)
-			omap_iommu_vfree(isp->domain, isp->iommu, table_old);
+			omap_iommu_vfree(isp->domain, isp->dev, table_old);
 	}
 
 	return ccdc_lsc_config(ccdc, ccdc_struct);
@@ -2309,7 +2309,7 @@ void omap3isp_ccdc_cleanup(struct isp_device *isp)
 	ccdc_lsc_free_queue(ccdc, &ccdc->lsc.free_queue);
 
 	if (ccdc->fpc.fpcaddr != 0)
-		omap_iommu_vfree(isp->domain, isp->iommu, ccdc->fpc.fpcaddr);
+		omap_iommu_vfree(isp->domain, isp->dev, ccdc->fpc.fpcaddr);
 
 	mutex_destroy(&ccdc->ioctl_lock);
 }
diff --git a/drivers/media/video/omap3isp/ispstat.c b/drivers/media/video/omap3isp/ispstat.c
index bc0b2c7349b9..11871ecc6d25 100644
--- a/drivers/media/video/omap3isp/ispstat.c
+++ b/drivers/media/video/omap3isp/ispstat.c
@@ -366,7 +366,7 @@ static void isp_stat_bufs_free(struct ispstat *stat)
 				dma_unmap_sg(isp->dev, buf->iovm->sgt->sgl,
 					     buf->iovm->sgt->nents,
 					     DMA_FROM_DEVICE);
-			omap_iommu_vfree(isp->domain, isp->iommu,
+			omap_iommu_vfree(isp->domain, isp->dev,
 							buf->iommu_addr);
 		} else {
 			if (!buf->virt_addr)
@@ -400,7 +400,7 @@ static int isp_stat_bufs_alloc_iommu(struct ispstat *stat, unsigned int size)
 		struct iovm_struct *iovm;
 
 		WARN_ON(buf->dma_addr);
-		buf->iommu_addr = omap_iommu_vmalloc(isp->domain, isp->iommu, 0,
+		buf->iommu_addr = omap_iommu_vmalloc(isp->domain, isp->dev, 0,
 							size, IOMMU_FLAG);
 		if (IS_ERR((void *)buf->iommu_addr)) {
 			dev_err(stat->isp->dev,
@@ -410,7 +410,7 @@ static int isp_stat_bufs_alloc_iommu(struct ispstat *stat, unsigned int size)
 			return -ENOMEM;
 		}
 
-		iovm = omap_find_iovm_area(isp->iommu, buf->iommu_addr);
+		iovm = omap_find_iovm_area(isp->dev, buf->iommu_addr);
 		if (!iovm ||
 		    !dma_map_sg(isp->dev, iovm->sgt->sgl, iovm->sgt->nents,
 				DMA_FROM_DEVICE)) {
@@ -419,7 +419,7 @@ static int isp_stat_bufs_alloc_iommu(struct ispstat *stat, unsigned int size)
 		}
 		buf->iovm = iovm;
 
-		buf->virt_addr = omap_da_to_va(stat->isp->iommu,
+		buf->virt_addr = omap_da_to_va(stat->isp->dev,
 					  (u32)buf->iommu_addr);
 		buf->empty = 1;
 		dev_dbg(stat->isp->dev, "%s: buffer[%d] allocated."
diff --git a/drivers/media/video/omap3isp/ispvideo.c b/drivers/media/video/omap3isp/ispvideo.c
index f2290578448c..bd3aebafafa0 100644
--- a/drivers/media/video/omap3isp/ispvideo.c
+++ b/drivers/media/video/omap3isp/ispvideo.c
@@ -453,7 +453,7 @@ ispmmu_vmap(struct isp_device *isp, const struct scatterlist *sglist, int sglen)
 	sgt->nents = sglen;
 	sgt->orig_nents = sglen;
 
-	da = omap_iommu_vmap(isp->domain, isp->iommu, 0, sgt, IOMMU_FLAG);
+	da = omap_iommu_vmap(isp->domain, isp->dev, 0, sgt, IOMMU_FLAG);
 	if (IS_ERR_VALUE(da))
 		kfree(sgt);
 
@@ -469,7 +469,7 @@ static void ispmmu_vunmap(struct isp_device *isp, dma_addr_t da)
 {
 	struct sg_table *sgt;
 
-	sgt = omap_iommu_vunmap(isp->domain, isp->iommu, (u32)da);
+	sgt = omap_iommu_vunmap(isp->domain, isp->dev, (u32)da);
 	kfree(sgt);
 }
 
diff --git a/drivers/message/fusion/lsi/mpi_cnfg.h b/drivers/message/fusion/lsi/mpi_cnfg.h
index 22027e7946f7..d9bcfba6b049 100644
--- a/drivers/message/fusion/lsi/mpi_cnfg.h
+++ b/drivers/message/fusion/lsi/mpi_cnfg.h
@@ -583,6 +583,7 @@ typedef struct _MSG_CONFIG_REPLY
 #define MPI_MANUFACTPAGE_DEVID_SAS1066E             (0x005A)
 #define MPI_MANUFACTPAGE_DEVID_SAS1068              (0x0054)
 #define MPI_MANUFACTPAGE_DEVID_SAS1068E             (0x0058)
+#define MPI_MANUFACTPAGE_DEVID_SAS1068_820XELP      (0x0059)
 #define MPI_MANUFACTPAGE_DEVID_SAS1078              (0x0062)
 
 
diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
index e9c6a6047a00..a7dc4672d996 100644
--- a/drivers/message/fusion/mptbase.c
+++ b/drivers/message/fusion/mptbase.c
@@ -115,7 +115,8 @@ module_param(mpt_fwfault_debug, int, 0600);
 MODULE_PARM_DESC(mpt_fwfault_debug,
 		 "Enable detection of Firmware fault and halt Firmware on fault - (default=0)");
 
-static char	MptCallbacksName[MPT_MAX_PROTOCOL_DRIVERS][50];
+static char	MptCallbacksName[MPT_MAX_PROTOCOL_DRIVERS]
+				[MPT_MAX_CALLBACKNAME_LEN+1];
 
 #ifdef MFCNT
 static int mfcounter = 0;
@@ -717,8 +718,8 @@ mpt_register(MPT_CALLBACK cbfunc, MPT_DRIVER_CLASS dclass, char *func_name)
 			MptDriverClass[cb_idx] = dclass;
 			MptEvHandlers[cb_idx] = NULL;
 			last_drv_idx = cb_idx;
-			memcpy(MptCallbacksName[cb_idx], func_name,
-			    strlen(func_name) > 50 ? 50 : strlen(func_name));
+			strlcpy(MptCallbacksName[cb_idx], func_name,
+				MPT_MAX_CALLBACKNAME_LEN+1);
 			break;
 		}
 	}
diff --git a/drivers/message/fusion/mptbase.h b/drivers/message/fusion/mptbase.h
index b4d24dc081ae..76c05bc24cb7 100644
--- a/drivers/message/fusion/mptbase.h
+++ b/drivers/message/fusion/mptbase.h
@@ -89,6 +89,7 @@
  */
 #define MPT_MAX_ADAPTERS		18
 #define MPT_MAX_PROTOCOL_DRIVERS	16
+#define MPT_MAX_CALLBACKNAME_LEN	49
 #define MPT_MAX_BUS			1	/* Do not change */
 #define MPT_MAX_FC_DEVICES		255
 #define MPT_MAX_SCSI_DEVICES		16
diff --git a/drivers/message/fusion/mptsas.c b/drivers/message/fusion/mptsas.c
index 9d9504298549..551262e4b96e 100644
--- a/drivers/message/fusion/mptsas.c
+++ b/drivers/message/fusion/mptsas.c
@@ -5376,6 +5376,8 @@ static struct pci_device_id mptsas_pci_table[] = {
 		PCI_ANY_ID, PCI_ANY_ID },
 	{ PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_SAS1078,
 		PCI_ANY_ID, PCI_ANY_ID },
+	{ PCI_VENDOR_ID_LSI_LOGIC, MPI_MANUFACTPAGE_DEVID_SAS1068_820XELP,
+		PCI_ANY_ID, PCI_ANY_ID },
 	{0}	/* Terminating entry */
 };
 MODULE_DEVICE_TABLE(pci, mptsas_pci_table);
diff --git a/drivers/mfd/db8500-prcmu.c b/drivers/mfd/db8500-prcmu.c
index a25ab9c6b5af..af8e0efedbe4 100644
--- a/drivers/mfd/db8500-prcmu.c
+++ b/drivers/mfd/db8500-prcmu.c
@@ -2102,14 +2102,11 @@ static struct irq_chip prcmu_irq_chip = {
 void __init db8500_prcmu_early_init(void)
 {
 	unsigned int i;
-
-	if (cpu_is_u8500v1()) {
-		tcdm_base = __io_address(U8500_PRCMU_TCDM_BASE_V1);
-	} else if (cpu_is_u8500v2()) {
+	if (cpu_is_u8500v2()) {
 		void *tcpm_base = ioremap_nocache(U8500_PRCMU_TCPM_BASE, SZ_4K);
 
 		if (tcpm_base != NULL) {
-			int version;
+			u32 version;
 			version = readl(tcpm_base + PRCMU_FW_VERSION_OFFSET);
 			prcmu_version.project_number = version & 0xFF;
 			prcmu_version.api_version = (version >> 8) & 0xFF;
diff --git a/drivers/mfd/omap-usb-host.c b/drivers/mfd/omap-usb-host.c
index 86e14583a082..3f565ef3e149 100644
--- a/drivers/mfd/omap-usb-host.c
+++ b/drivers/mfd/omap-usb-host.c
@@ -27,8 +27,9 @@
 #include <linux/spinlock.h>
 #include <linux/gpio.h>
 #include <plat/usb.h>
+#include <linux/pm_runtime.h>
 
-#define USBHS_DRIVER_NAME	"usbhs-omap"
+#define USBHS_DRIVER_NAME	"usbhs_omap"
 #define OMAP_EHCI_DEVICE	"ehci-omap"
 #define OMAP_OHCI_DEVICE	"ohci-omap3"
 
@@ -147,9 +148,6 @@
 
 
 struct usbhs_hcd_omap {
-	struct clk			*usbhost_ick;
-	struct clk			*usbhost_hs_fck;
-	struct clk			*usbhost_fs_fck;
 	struct clk			*xclk60mhsp1_ck;
 	struct clk			*xclk60mhsp2_ck;
 	struct clk			*utmi_p1_fck;
@@ -159,8 +157,7 @@ struct usbhs_hcd_omap {
 	struct clk			*usbhost_p2_fck;
 	struct clk			*usbtll_p2_fck;
 	struct clk			*init_60m_fclk;
-	struct clk			*usbtll_fck;
-	struct clk			*usbtll_ick;
+	struct clk			*ehci_logic_fck;
 
 	void __iomem			*uhh_base;
 	void __iomem			*tll_base;
@@ -169,7 +166,6 @@ struct usbhs_hcd_omap {
 
 	u32				usbhs_rev;
 	spinlock_t			lock;
-	int				count;
 };
 /*-------------------------------------------------------------------------*/
 
@@ -319,269 +315,6 @@ err_end:
 	return ret;
 }
 
-/**
- * usbhs_omap_probe - initialize TI-based HCDs
- *
- * Allocates basic resources for this USB host controller.
- */
-static int __devinit usbhs_omap_probe(struct platform_device *pdev)
-{
-	struct device			*dev =  &pdev->dev;
-	struct usbhs_omap_platform_data	*pdata = dev->platform_data;
-	struct usbhs_hcd_omap		*omap;
-	struct resource			*res;
-	int				ret = 0;
-	int				i;
-
-	if (!pdata) {
-		dev_err(dev, "Missing platform data\n");
-		ret = -ENOMEM;
-		goto end_probe;
-	}
-
-	omap = kzalloc(sizeof(*omap), GFP_KERNEL);
-	if (!omap) {
-		dev_err(dev, "Memory allocation failed\n");
-		ret = -ENOMEM;
-		goto end_probe;
-	}
-
-	spin_lock_init(&omap->lock);
-
-	for (i = 0; i < OMAP3_HS_USB_PORTS; i++)
-		omap->platdata.port_mode[i] = pdata->port_mode[i];
-
-	omap->platdata.ehci_data = pdata->ehci_data;
-	omap->platdata.ohci_data = pdata->ohci_data;
-
-	omap->usbhost_ick = clk_get(dev, "usbhost_ick");
-	if (IS_ERR(omap->usbhost_ick)) {
-		ret =  PTR_ERR(omap->usbhost_ick);
-		dev_err(dev, "usbhost_ick failed error:%d\n", ret);
-		goto err_end;
-	}
-
-	omap->usbhost_hs_fck = clk_get(dev, "hs_fck");
-	if (IS_ERR(omap->usbhost_hs_fck)) {
-		ret = PTR_ERR(omap->usbhost_hs_fck);
-		dev_err(dev, "usbhost_hs_fck failed error:%d\n", ret);
-		goto err_usbhost_ick;
-	}
-
-	omap->usbhost_fs_fck = clk_get(dev, "fs_fck");
-	if (IS_ERR(omap->usbhost_fs_fck)) {
-		ret = PTR_ERR(omap->usbhost_fs_fck);
-		dev_err(dev, "usbhost_fs_fck failed error:%d\n", ret);
-		goto err_usbhost_hs_fck;
-	}
-
-	omap->usbtll_fck = clk_get(dev, "usbtll_fck");
-	if (IS_ERR(omap->usbtll_fck)) {
-		ret = PTR_ERR(omap->usbtll_fck);
-		dev_err(dev, "usbtll_fck failed error:%d\n", ret);
-		goto err_usbhost_fs_fck;
-	}
-
-	omap->usbtll_ick = clk_get(dev, "usbtll_ick");
-	if (IS_ERR(omap->usbtll_ick)) {
-		ret = PTR_ERR(omap->usbtll_ick);
-		dev_err(dev, "usbtll_ick failed error:%d\n", ret);
-		goto err_usbtll_fck;
-	}
-
-	omap->utmi_p1_fck = clk_get(dev, "utmi_p1_gfclk");
-	if (IS_ERR(omap->utmi_p1_fck)) {
-		ret = PTR_ERR(omap->utmi_p1_fck);
-		dev_err(dev, "utmi_p1_gfclk failed error:%d\n",	ret);
-		goto err_usbtll_ick;
-	}
-
-	omap->xclk60mhsp1_ck = clk_get(dev, "xclk60mhsp1_ck");
-	if (IS_ERR(omap->xclk60mhsp1_ck)) {
-		ret = PTR_ERR(omap->xclk60mhsp1_ck);
-		dev_err(dev, "xclk60mhsp1_ck failed error:%d\n", ret);
-		goto err_utmi_p1_fck;
-	}
-
-	omap->utmi_p2_fck = clk_get(dev, "utmi_p2_gfclk");
-	if (IS_ERR(omap->utmi_p2_fck)) {
-		ret = PTR_ERR(omap->utmi_p2_fck);
-		dev_err(dev, "utmi_p2_gfclk failed error:%d\n", ret);
-		goto err_xclk60mhsp1_ck;
-	}
-
-	omap->xclk60mhsp2_ck = clk_get(dev, "xclk60mhsp2_ck");
-	if (IS_ERR(omap->xclk60mhsp2_ck)) {
-		ret = PTR_ERR(omap->xclk60mhsp2_ck);
-		dev_err(dev, "xclk60mhsp2_ck failed error:%d\n", ret);
-		goto err_utmi_p2_fck;
-	}
-
-	omap->usbhost_p1_fck = clk_get(dev, "usb_host_hs_utmi_p1_clk");
-	if (IS_ERR(omap->usbhost_p1_fck)) {
-		ret = PTR_ERR(omap->usbhost_p1_fck);
-		dev_err(dev, "usbhost_p1_fck failed error:%d\n", ret);
-		goto err_xclk60mhsp2_ck;
-	}
-
-	omap->usbtll_p1_fck = clk_get(dev, "usb_tll_hs_usb_ch0_clk");
-	if (IS_ERR(omap->usbtll_p1_fck)) {
-		ret = PTR_ERR(omap->usbtll_p1_fck);
-		dev_err(dev, "usbtll_p1_fck failed error:%d\n", ret);
-		goto err_usbhost_p1_fck;
-	}
-
-	omap->usbhost_p2_fck = clk_get(dev, "usb_host_hs_utmi_p2_clk");
-	if (IS_ERR(omap->usbhost_p2_fck)) {
-		ret = PTR_ERR(omap->usbhost_p2_fck);
-		dev_err(dev, "usbhost_p2_fck failed error:%d\n", ret);
-		goto err_usbtll_p1_fck;
-	}
-
-	omap->usbtll_p2_fck = clk_get(dev, "usb_tll_hs_usb_ch1_clk");
-	if (IS_ERR(omap->usbtll_p2_fck)) {
-		ret = PTR_ERR(omap->usbtll_p2_fck);
-		dev_err(dev, "usbtll_p2_fck failed error:%d\n", ret);
-		goto err_usbhost_p2_fck;
-	}
-
-	omap->init_60m_fclk = clk_get(dev, "init_60m_fclk");
-	if (IS_ERR(omap->init_60m_fclk)) {
-		ret = PTR_ERR(omap->init_60m_fclk);
-		dev_err(dev, "init_60m_fclk failed error:%d\n", ret);
-		goto err_usbtll_p2_fck;
-	}
-
-	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "uhh");
-	if (!res) {
-		dev_err(dev, "UHH EHCI get resource failed\n");
-		ret = -ENODEV;
-		goto err_init_60m_fclk;
-	}
-
-	omap->uhh_base = ioremap(res->start, resource_size(res));
-	if (!omap->uhh_base) {
-		dev_err(dev, "UHH ioremap failed\n");
-		ret = -ENOMEM;
-		goto err_init_60m_fclk;
-	}
-
-	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "tll");
-	if (!res) {
-		dev_err(dev, "UHH EHCI get resource failed\n");
-		ret = -ENODEV;
-		goto err_tll;
-	}
-
-	omap->tll_base = ioremap(res->start, resource_size(res));
-	if (!omap->tll_base) {
-		dev_err(dev, "TLL ioremap failed\n");
-		ret = -ENOMEM;
-		goto err_tll;
-	}
-
-	platform_set_drvdata(pdev, omap);
-
-	ret = omap_usbhs_alloc_children(pdev);
-	if (ret) {
-		dev_err(dev, "omap_usbhs_alloc_children failed\n");
-		goto err_alloc;
-	}
-
-	goto end_probe;
-
-err_alloc:
-	iounmap(omap->tll_base);
-
-err_tll:
-	iounmap(omap->uhh_base);
-
-err_init_60m_fclk:
-	clk_put(omap->init_60m_fclk);
-
-err_usbtll_p2_fck:
-	clk_put(omap->usbtll_p2_fck);
-
-err_usbhost_p2_fck:
-	clk_put(omap->usbhost_p2_fck);
-
-err_usbtll_p1_fck:
-	clk_put(omap->usbtll_p1_fck);
-
-err_usbhost_p1_fck:
-	clk_put(omap->usbhost_p1_fck);
-
-err_xclk60mhsp2_ck:
-	clk_put(omap->xclk60mhsp2_ck);
-
-err_utmi_p2_fck:
-	clk_put(omap->utmi_p2_fck);
-
-err_xclk60mhsp1_ck:
-	clk_put(omap->xclk60mhsp1_ck);
-
-err_utmi_p1_fck:
-	clk_put(omap->utmi_p1_fck);
-
-err_usbtll_ick:
-	clk_put(omap->usbtll_ick);
-
-err_usbtll_fck:
-	clk_put(omap->usbtll_fck);
-
-err_usbhost_fs_fck:
-	clk_put(omap->usbhost_fs_fck);
-
-err_usbhost_hs_fck:
-	clk_put(omap->usbhost_hs_fck);
-
-err_usbhost_ick:
-	clk_put(omap->usbhost_ick);
-
-err_end:
-	kfree(omap);
-
-end_probe:
-	return ret;
-}
-
-/**
- * usbhs_omap_remove - shutdown processing for UHH & TLL HCDs
- * @pdev: USB Host Controller being removed
- *
- * Reverses the effect of usbhs_omap_probe().
- */
-static int __devexit usbhs_omap_remove(struct platform_device *pdev)
-{
-	struct usbhs_hcd_omap *omap = platform_get_drvdata(pdev);
-
-	if (omap->count != 0) {
-		dev_err(&pdev->dev,
-			"Either EHCI or OHCI is still using usbhs core\n");
-		return -EBUSY;
-	}
-
-	iounmap(omap->tll_base);
-	iounmap(omap->uhh_base);
-	clk_put(omap->init_60m_fclk);
-	clk_put(omap->usbtll_p2_fck);
-	clk_put(omap->usbhost_p2_fck);
-	clk_put(omap->usbtll_p1_fck);
-	clk_put(omap->usbhost_p1_fck);
-	clk_put(omap->xclk60mhsp2_ck);
-	clk_put(omap->utmi_p2_fck);
-	clk_put(omap->xclk60mhsp1_ck);
-	clk_put(omap->utmi_p1_fck);
-	clk_put(omap->usbtll_ick);
-	clk_put(omap->usbtll_fck);
-	clk_put(omap->usbhost_fs_fck);
-	clk_put(omap->usbhost_hs_fck);
-	clk_put(omap->usbhost_ick);
-	kfree(omap);
-
-	return 0;
-}
-
 static bool is_ohci_port(enum usbhs_omap_port_mode pmode)
 {
 	switch (pmode) {
@@ -689,30 +422,85 @@ static void usbhs_omap_tll_init(struct device *dev, u8 tll_channel_count)
 	}
 }
 
-static int usbhs_enable(struct device *dev)
+static int usbhs_runtime_resume(struct device *dev)
 {
 	struct usbhs_hcd_omap		*omap = dev_get_drvdata(dev);
 	struct usbhs_omap_platform_data	*pdata = &omap->platdata;
-	unsigned long			flags = 0;
-	int				ret = 0;
-	unsigned long			timeout;
-	unsigned			reg;
+	unsigned long			flags;
+
+	dev_dbg(dev, "usbhs_runtime_resume\n");
 
-	dev_dbg(dev, "starting TI HSUSB Controller\n");
 	if (!pdata) {
 		dev_dbg(dev, "missing platform_data\n");
 		return  -ENODEV;
 	}
 
 	spin_lock_irqsave(&omap->lock, flags);
-	if (omap->count > 0)
-		goto end_count;
 
-	clk_enable(omap->usbhost_ick);
-	clk_enable(omap->usbhost_hs_fck);
-	clk_enable(omap->usbhost_fs_fck);
-	clk_enable(omap->usbtll_fck);
-	clk_enable(omap->usbtll_ick);
+	if (omap->ehci_logic_fck && !IS_ERR(omap->ehci_logic_fck))
+		clk_enable(omap->ehci_logic_fck);
+
+	if (is_ehci_tll_mode(pdata->port_mode[0])) {
+		clk_enable(omap->usbhost_p1_fck);
+		clk_enable(omap->usbtll_p1_fck);
+	}
+	if (is_ehci_tll_mode(pdata->port_mode[1])) {
+		clk_enable(omap->usbhost_p2_fck);
+		clk_enable(omap->usbtll_p2_fck);
+	}
+	clk_enable(omap->utmi_p1_fck);
+	clk_enable(omap->utmi_p2_fck);
+
+	spin_unlock_irqrestore(&omap->lock, flags);
+
+	return 0;
+}
+
+static int usbhs_runtime_suspend(struct device *dev)
+{
+	struct usbhs_hcd_omap		*omap = dev_get_drvdata(dev);
+	struct usbhs_omap_platform_data	*pdata = &omap->platdata;
+	unsigned long			flags;
+
+	dev_dbg(dev, "usbhs_runtime_suspend\n");
+
+	if (!pdata) {
+		dev_dbg(dev, "missing platform_data\n");
+		return  -ENODEV;
+	}
+
+	spin_lock_irqsave(&omap->lock, flags);
+
+	if (is_ehci_tll_mode(pdata->port_mode[0])) {
+		clk_disable(omap->usbhost_p1_fck);
+		clk_disable(omap->usbtll_p1_fck);
+	}
+	if (is_ehci_tll_mode(pdata->port_mode[1])) {
+		clk_disable(omap->usbhost_p2_fck);
+		clk_disable(omap->usbtll_p2_fck);
+	}
+	clk_disable(omap->utmi_p2_fck);
+	clk_disable(omap->utmi_p1_fck);
+
+	if (omap->ehci_logic_fck && !IS_ERR(omap->ehci_logic_fck))
+		clk_disable(omap->ehci_logic_fck);
+
+	spin_unlock_irqrestore(&omap->lock, flags);
+
+	return 0;
+}
+
+static void omap_usbhs_init(struct device *dev)
+{
+	struct usbhs_hcd_omap		*omap = dev_get_drvdata(dev);
+	struct usbhs_omap_platform_data	*pdata = &omap->platdata;
+	unsigned long			flags;
+	unsigned			reg;
+
+	dev_dbg(dev, "starting TI HSUSB Controller\n");
+
+	pm_runtime_get_sync(dev);
+	spin_lock_irqsave(&omap->lock, flags);
 
 	if (pdata->ehci_data->phy_reset) {
 		if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[0])) {
@@ -736,50 +524,6 @@ static int usbhs_enable(struct device *dev)
 	omap->usbhs_rev = usbhs_read(omap->uhh_base, OMAP_UHH_REVISION);
 	dev_dbg(dev, "OMAP UHH_REVISION 0x%x\n", omap->usbhs_rev);
 
-	/* perform TLL soft reset, and wait until reset is complete */
-	usbhs_write(omap->tll_base, OMAP_USBTLL_SYSCONFIG,
-			OMAP_USBTLL_SYSCONFIG_SOFTRESET);
-
-	/* Wait for TLL reset to complete */
-	timeout = jiffies + msecs_to_jiffies(1000);
-	while (!(usbhs_read(omap->tll_base, OMAP_USBTLL_SYSSTATUS)
-			& OMAP_USBTLL_SYSSTATUS_RESETDONE)) {
-		cpu_relax();
-
-		if (time_after(jiffies, timeout)) {
-			dev_dbg(dev, "operation timed out\n");
-			ret = -EINVAL;
-			goto err_tll;
-		}
-	}
-
-	dev_dbg(dev, "TLL RESET DONE\n");
-
-	/* (1<<3) = no idle mode only for initial debugging */
-	usbhs_write(omap->tll_base, OMAP_USBTLL_SYSCONFIG,
-			OMAP_USBTLL_SYSCONFIG_ENAWAKEUP |
-			OMAP_USBTLL_SYSCONFIG_SIDLEMODE |
-			OMAP_USBTLL_SYSCONFIG_AUTOIDLE);
-
-	/* Put UHH in NoIdle/NoStandby mode */
-	reg = usbhs_read(omap->uhh_base, OMAP_UHH_SYSCONFIG);
-	if (is_omap_usbhs_rev1(omap)) {
-		reg |= (OMAP_UHH_SYSCONFIG_ENAWAKEUP
-				| OMAP_UHH_SYSCONFIG_SIDLEMODE
-				| OMAP_UHH_SYSCONFIG_CACTIVITY
-				| OMAP_UHH_SYSCONFIG_MIDLEMODE);
-		reg &= ~OMAP_UHH_SYSCONFIG_AUTOIDLE;
-
-
-	} else if (is_omap_usbhs_rev2(omap)) {
-		reg &= ~OMAP4_UHH_SYSCONFIG_IDLEMODE_CLEAR;
-		reg |= OMAP4_UHH_SYSCONFIG_NOIDLE;
-		reg &= ~OMAP4_UHH_SYSCONFIG_STDBYMODE_CLEAR;
-		reg |= OMAP4_UHH_SYSCONFIG_NOSTDBY;
-	}
-
-	usbhs_write(omap->uhh_base, OMAP_UHH_SYSCONFIG, reg);
-
 	reg = usbhs_read(omap->uhh_base, OMAP_UHH_HOSTCONFIG);
 	/* setup ULPI bypass and burst configurations */
 	reg |= (OMAP_UHH_HOSTCONFIG_INCR4_BURST_EN
@@ -825,49 +569,6 @@ static int usbhs_enable(struct device *dev)
 		reg &= ~OMAP4_P1_MODE_CLEAR;
 		reg &= ~OMAP4_P2_MODE_CLEAR;
 
-		if (is_ehci_phy_mode(pdata->port_mode[0])) {
-			ret = clk_set_parent(omap->utmi_p1_fck,
-						omap->xclk60mhsp1_ck);
-			if (ret != 0) {
-				dev_err(dev, "xclk60mhsp1_ck set parent"
-				"failed error:%d\n", ret);
-				goto err_tll;
-			}
-		} else if (is_ehci_tll_mode(pdata->port_mode[0])) {
-			ret = clk_set_parent(omap->utmi_p1_fck,
-						omap->init_60m_fclk);
-			if (ret != 0) {
-				dev_err(dev, "init_60m_fclk set parent"
-				"failed error:%d\n", ret);
-				goto err_tll;
-			}
-			clk_enable(omap->usbhost_p1_fck);
-			clk_enable(omap->usbtll_p1_fck);
-		}
-
-		if (is_ehci_phy_mode(pdata->port_mode[1])) {
-			ret = clk_set_parent(omap->utmi_p2_fck,
-						omap->xclk60mhsp2_ck);
-			if (ret != 0) {
-				dev_err(dev, "xclk60mhsp1_ck set parent"
-					"failed error:%d\n", ret);
-				goto err_tll;
-			}
-		} else if (is_ehci_tll_mode(pdata->port_mode[1])) {
-			ret = clk_set_parent(omap->utmi_p2_fck,
-						omap->init_60m_fclk);
-			if (ret != 0) {
-				dev_err(dev, "init_60m_fclk set parent"
-				"failed error:%d\n", ret);
-				goto err_tll;
-			}
-			clk_enable(omap->usbhost_p2_fck);
-			clk_enable(omap->usbtll_p2_fck);
-		}
-
-		clk_enable(omap->utmi_p1_fck);
-		clk_enable(omap->utmi_p2_fck);
-
 		if (is_ehci_tll_mode(pdata->port_mode[0]) ||
 			(is_ohci_port(pdata->port_mode[0])))
 			reg |= OMAP4_P1_MODE_TLL;
@@ -913,12 +614,15 @@ static int usbhs_enable(struct device *dev)
 				(pdata->ehci_data->reset_gpio_port[1], 1);
 	}
 
-end_count:
-	omap->count++;
 	spin_unlock_irqrestore(&omap->lock, flags);
-	return 0;
+	pm_runtime_put_sync(dev);
+}
+
+static void omap_usbhs_deinit(struct device *dev)
+{
+	struct usbhs_hcd_omap		*omap = dev_get_drvdata(dev);
+	struct usbhs_omap_platform_data	*pdata = &omap->platdata;
 
-err_tll:
 	if (pdata->ehci_data->phy_reset) {
 		if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[0]))
 			gpio_free(pdata->ehci_data->reset_gpio_port[0]);
@@ -926,123 +630,272 @@ err_tll:
 		if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[1]))
 			gpio_free(pdata->ehci_data->reset_gpio_port[1]);
 	}
-
-	clk_disable(omap->usbtll_ick);
-	clk_disable(omap->usbtll_fck);
-	clk_disable(omap->usbhost_fs_fck);
-	clk_disable(omap->usbhost_hs_fck);
-	clk_disable(omap->usbhost_ick);
-	spin_unlock_irqrestore(&omap->lock, flags);
-	return ret;
 }
 
-static void usbhs_disable(struct device *dev)
+
+/**
+ * usbhs_omap_probe - initialize TI-based HCDs
+ *
+ * Allocates basic resources for this USB host controller.
+ */
+static int __devinit usbhs_omap_probe(struct platform_device *pdev)
 {
-	struct usbhs_hcd_omap		*omap = dev_get_drvdata(dev);
-	struct usbhs_omap_platform_data	*pdata = &omap->platdata;
-	unsigned long			flags = 0;
-	unsigned long			timeout;
+	struct device			*dev =  &pdev->dev;
+	struct usbhs_omap_platform_data	*pdata = dev->platform_data;
+	struct usbhs_hcd_omap		*omap;
+	struct resource			*res;
+	int				ret = 0;
+	int				i;
 
-	dev_dbg(dev, "stopping TI HSUSB Controller\n");
+	if (!pdata) {
+		dev_err(dev, "Missing platform data\n");
+		ret = -ENOMEM;
+		goto end_probe;
+	}
 
-	spin_lock_irqsave(&omap->lock, flags);
+	omap = kzalloc(sizeof(*omap), GFP_KERNEL);
+	if (!omap) {
+		dev_err(dev, "Memory allocation failed\n");
+		ret = -ENOMEM;
+		goto end_probe;
+	}
 
-	if (omap->count == 0)
-		goto end_disble;
+	spin_lock_init(&omap->lock);
 
-	omap->count--;
+	for (i = 0; i < OMAP3_HS_USB_PORTS; i++)
+		omap->platdata.port_mode[i] = pdata->port_mode[i];
+
+	omap->platdata.ehci_data = pdata->ehci_data;
+	omap->platdata.ohci_data = pdata->ohci_data;
 
-	if (omap->count != 0)
-		goto end_disble;
+	pm_runtime_enable(dev);
 
-	/* Reset OMAP modules for insmod/rmmod to work */
-	usbhs_write(omap->uhh_base, OMAP_UHH_SYSCONFIG,
-			is_omap_usbhs_rev2(omap) ?
-			OMAP4_UHH_SYSCONFIG_SOFTRESET :
-			OMAP_UHH_SYSCONFIG_SOFTRESET);
 
-	timeout = jiffies + msecs_to_jiffies(100);
-	while (!(usbhs_read(omap->uhh_base, OMAP_UHH_SYSSTATUS)
-				& (1 << 0))) {
-		cpu_relax();
+	for (i = 0; i < OMAP3_HS_USB_PORTS; i++)
+		if (is_ehci_phy_mode(i) || is_ehci_tll_mode(i) ||
+			is_ehci_hsic_mode(i)) {
+			omap->ehci_logic_fck = clk_get(dev, "ehci_logic_fck");
+			if (IS_ERR(omap->ehci_logic_fck)) {
+				ret = PTR_ERR(omap->ehci_logic_fck);
+				dev_warn(dev, "ehci_logic_fck failed:%d\n",
+					 ret);
+			}
+			break;
+		}
 
-		if (time_after(jiffies, timeout))
-			dev_dbg(dev, "operation timed out\n");
+	omap->utmi_p1_fck = clk_get(dev, "utmi_p1_gfclk");
+	if (IS_ERR(omap->utmi_p1_fck)) {
+		ret = PTR_ERR(omap->utmi_p1_fck);
+		dev_err(dev, "utmi_p1_gfclk failed error:%d\n",	ret);
+		goto err_end;
 	}
 
-	while (!(usbhs_read(omap->uhh_base, OMAP_UHH_SYSSTATUS)
-				& (1 << 1))) {
-		cpu_relax();
+	omap->xclk60mhsp1_ck = clk_get(dev, "xclk60mhsp1_ck");
+	if (IS_ERR(omap->xclk60mhsp1_ck)) {
+		ret = PTR_ERR(omap->xclk60mhsp1_ck);
+		dev_err(dev, "xclk60mhsp1_ck failed error:%d\n", ret);
+		goto err_utmi_p1_fck;
+	}
 
-		if (time_after(jiffies, timeout))
-			dev_dbg(dev, "operation timed out\n");
+	omap->utmi_p2_fck = clk_get(dev, "utmi_p2_gfclk");
+	if (IS_ERR(omap->utmi_p2_fck)) {
+		ret = PTR_ERR(omap->utmi_p2_fck);
+		dev_err(dev, "utmi_p2_gfclk failed error:%d\n", ret);
+		goto err_xclk60mhsp1_ck;
 	}
 
-	while (!(usbhs_read(omap->uhh_base, OMAP_UHH_SYSSTATUS)
-				& (1 << 2))) {
-		cpu_relax();
+	omap->xclk60mhsp2_ck = clk_get(dev, "xclk60mhsp2_ck");
+	if (IS_ERR(omap->xclk60mhsp2_ck)) {
+		ret = PTR_ERR(omap->xclk60mhsp2_ck);
+		dev_err(dev, "xclk60mhsp2_ck failed error:%d\n", ret);
+		goto err_utmi_p2_fck;
+	}
 
-		if (time_after(jiffies, timeout))
-			dev_dbg(dev, "operation timed out\n");
+	omap->usbhost_p1_fck = clk_get(dev, "usb_host_hs_utmi_p1_clk");
+	if (IS_ERR(omap->usbhost_p1_fck)) {
+		ret = PTR_ERR(omap->usbhost_p1_fck);
+		dev_err(dev, "usbhost_p1_fck failed error:%d\n", ret);
+		goto err_xclk60mhsp2_ck;
 	}
 
-	usbhs_write(omap->tll_base, OMAP_USBTLL_SYSCONFIG, (1 << 1));
+	omap->usbtll_p1_fck = clk_get(dev, "usb_tll_hs_usb_ch0_clk");
+	if (IS_ERR(omap->usbtll_p1_fck)) {
+		ret = PTR_ERR(omap->usbtll_p1_fck);
+		dev_err(dev, "usbtll_p1_fck failed error:%d\n", ret);
+		goto err_usbhost_p1_fck;
+	}
 
-	while (!(usbhs_read(omap->tll_base, OMAP_USBTLL_SYSSTATUS)
-				& (1 << 0))) {
-		cpu_relax();
+	omap->usbhost_p2_fck = clk_get(dev, "usb_host_hs_utmi_p2_clk");
+	if (IS_ERR(omap->usbhost_p2_fck)) {
+		ret = PTR_ERR(omap->usbhost_p2_fck);
+		dev_err(dev, "usbhost_p2_fck failed error:%d\n", ret);
+		goto err_usbtll_p1_fck;
+	}
 
-		if (time_after(jiffies, timeout))
-			dev_dbg(dev, "operation timed out\n");
+	omap->usbtll_p2_fck = clk_get(dev, "usb_tll_hs_usb_ch1_clk");
+	if (IS_ERR(omap->usbtll_p2_fck)) {
+		ret = PTR_ERR(omap->usbtll_p2_fck);
+		dev_err(dev, "usbtll_p2_fck failed error:%d\n", ret);
+		goto err_usbhost_p2_fck;
 	}
 
-	if (is_omap_usbhs_rev2(omap)) {
-		if (is_ehci_tll_mode(pdata->port_mode[0]))
-			clk_disable(omap->usbtll_p1_fck);
-		if (is_ehci_tll_mode(pdata->port_mode[1]))
-			clk_disable(omap->usbtll_p2_fck);
-		clk_disable(omap->utmi_p2_fck);
-		clk_disable(omap->utmi_p1_fck);
+	omap->init_60m_fclk = clk_get(dev, "init_60m_fclk");
+	if (IS_ERR(omap->init_60m_fclk)) {
+		ret = PTR_ERR(omap->init_60m_fclk);
+		dev_err(dev, "init_60m_fclk failed error:%d\n", ret);
+		goto err_usbtll_p2_fck;
 	}
 
-	clk_disable(omap->usbtll_ick);
-	clk_disable(omap->usbtll_fck);
-	clk_disable(omap->usbhost_fs_fck);
-	clk_disable(omap->usbhost_hs_fck);
-	clk_disable(omap->usbhost_ick);
+	if (is_ehci_phy_mode(pdata->port_mode[0])) {
+		/* for OMAP3 , the clk set paretn fails */
+		ret = clk_set_parent(omap->utmi_p1_fck,
+					omap->xclk60mhsp1_ck);
+		if (ret != 0)
+			dev_err(dev, "xclk60mhsp1_ck set parent"
+				"failed error:%d\n", ret);
+	} else if (is_ehci_tll_mode(pdata->port_mode[0])) {
+		ret = clk_set_parent(omap->utmi_p1_fck,
+					omap->init_60m_fclk);
+		if (ret != 0)
+			dev_err(dev, "init_60m_fclk set parent"
+				"failed error:%d\n", ret);
+	}
 
-	/* The gpio_free migh sleep; so unlock the spinlock */
-	spin_unlock_irqrestore(&omap->lock, flags);
+	if (is_ehci_phy_mode(pdata->port_mode[1])) {
+		ret = clk_set_parent(omap->utmi_p2_fck,
+					omap->xclk60mhsp2_ck);
+		if (ret != 0)
+			dev_err(dev, "xclk60mhsp2_ck set parent"
+					"failed error:%d\n", ret);
+	} else if (is_ehci_tll_mode(pdata->port_mode[1])) {
+		ret = clk_set_parent(omap->utmi_p2_fck,
+						omap->init_60m_fclk);
+		if (ret != 0)
+			dev_err(dev, "init_60m_fclk set parent"
+				"failed error:%d\n", ret);
+	}
 
-	if (pdata->ehci_data->phy_reset) {
-		if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[0]))
-			gpio_free(pdata->ehci_data->reset_gpio_port[0]);
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "uhh");
+	if (!res) {
+		dev_err(dev, "UHH EHCI get resource failed\n");
+		ret = -ENODEV;
+		goto err_init_60m_fclk;
+	}
 
-		if (gpio_is_valid(pdata->ehci_data->reset_gpio_port[1]))
-			gpio_free(pdata->ehci_data->reset_gpio_port[1]);
+	omap->uhh_base = ioremap(res->start, resource_size(res));
+	if (!omap->uhh_base) {
+		dev_err(dev, "UHH ioremap failed\n");
+		ret = -ENOMEM;
+		goto err_init_60m_fclk;
 	}
-	return;
 
-end_disble:
-	spin_unlock_irqrestore(&omap->lock, flags);
-}
+	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "tll");
+	if (!res) {
+		dev_err(dev, "UHH EHCI get resource failed\n");
+		ret = -ENODEV;
+		goto err_tll;
+	}
 
-int omap_usbhs_enable(struct device *dev)
-{
-	return  usbhs_enable(dev->parent);
+	omap->tll_base = ioremap(res->start, resource_size(res));
+	if (!omap->tll_base) {
+		dev_err(dev, "TLL ioremap failed\n");
+		ret = -ENOMEM;
+		goto err_tll;
+	}
+
+	platform_set_drvdata(pdev, omap);
+
+	ret = omap_usbhs_alloc_children(pdev);
+	if (ret) {
+		dev_err(dev, "omap_usbhs_alloc_children failed\n");
+		goto err_alloc;
+	}
+
+	omap_usbhs_init(dev);
+
+	goto end_probe;
+
+err_alloc:
+	iounmap(omap->tll_base);
+
+err_tll:
+	iounmap(omap->uhh_base);
+
+err_init_60m_fclk:
+	clk_put(omap->init_60m_fclk);
+
+err_usbtll_p2_fck:
+	clk_put(omap->usbtll_p2_fck);
+
+err_usbhost_p2_fck:
+	clk_put(omap->usbhost_p2_fck);
+
+err_usbtll_p1_fck:
+	clk_put(omap->usbtll_p1_fck);
+
+err_usbhost_p1_fck:
+	clk_put(omap->usbhost_p1_fck);
+
+err_xclk60mhsp2_ck:
+	clk_put(omap->xclk60mhsp2_ck);
+
+err_utmi_p2_fck:
+	clk_put(omap->utmi_p2_fck);
+
+err_xclk60mhsp1_ck:
+	clk_put(omap->xclk60mhsp1_ck);
+
+err_utmi_p1_fck:
+	clk_put(omap->utmi_p1_fck);
+
+err_end:
+	clk_put(omap->ehci_logic_fck);
+	pm_runtime_disable(dev);
+	kfree(omap);
+
+end_probe:
+	return ret;
 }
-EXPORT_SYMBOL_GPL(omap_usbhs_enable);
 
-void omap_usbhs_disable(struct device *dev)
+/**
+ * usbhs_omap_remove - shutdown processing for UHH & TLL HCDs
+ * @pdev: USB Host Controller being removed
+ *
+ * Reverses the effect of usbhs_omap_probe().
+ */
+static int __devexit usbhs_omap_remove(struct platform_device *pdev)
 {
-	usbhs_disable(dev->parent);
+	struct usbhs_hcd_omap *omap = platform_get_drvdata(pdev);
+
+	omap_usbhs_deinit(&pdev->dev);
+	iounmap(omap->tll_base);
+	iounmap(omap->uhh_base);
+	clk_put(omap->init_60m_fclk);
+	clk_put(omap->usbtll_p2_fck);
+	clk_put(omap->usbhost_p2_fck);
+	clk_put(omap->usbtll_p1_fck);
+	clk_put(omap->usbhost_p1_fck);
+	clk_put(omap->xclk60mhsp2_ck);
+	clk_put(omap->utmi_p2_fck);
+	clk_put(omap->xclk60mhsp1_ck);
+	clk_put(omap->utmi_p1_fck);
+	clk_put(omap->ehci_logic_fck);
+	pm_runtime_disable(&pdev->dev);
+	kfree(omap);
+
+	return 0;
 }
-EXPORT_SYMBOL_GPL(omap_usbhs_disable);
+
+static const struct dev_pm_ops usbhsomap_dev_pm_ops = {
+	.runtime_suspend	= usbhs_runtime_suspend,
+	.runtime_resume		= usbhs_runtime_resume,
+};
 
 static struct platform_driver usbhs_omap_driver = {
 	.driver = {
 		.name		= (char *)usbhs_driver_name,
 		.owner		= THIS_MODULE,
+		.pm		= &usbhsomap_dev_pm_ops,
 	},
 	.remove		= __exit_p(usbhs_omap_remove),
 };
diff --git a/drivers/misc/ad525x_dpot-i2c.c b/drivers/misc/ad525x_dpot-i2c.c
index a39e0555df63..83adab69bfd4 100644
--- a/drivers/misc/ad525x_dpot-i2c.c
+++ b/drivers/misc/ad525x_dpot-i2c.c
@@ -1,7 +1,7 @@
 /*
  * Driver for the Analog Devices digital potentiometers (I2C bus)
  *
- * Copyright (C) 2010 Michael Hennerich, Analog Devices Inc.
+ * Copyright (C) 2010-2011 Michael Hennerich, Analog Devices Inc.
  *
  * Licensed under the GPL-2 or later.
  */
@@ -11,7 +11,6 @@
 
 #include "ad525x_dpot.h"
 
-/* ------------------------------------------------------------------------- */
 /* I2C bus functions */
 static int write_d8(void *client, u8 val)
 {
@@ -60,18 +59,13 @@ static int __devinit ad_dpot_i2c_probe(struct i2c_client *client,
 		.bops = &bops,
 	};
 
-	struct ad_dpot_id dpot_id = {
-		.name = (char *) &id->name,
-		.devid = id->driver_data,
-	};
-
 	if (!i2c_check_functionality(client->adapter,
 				     I2C_FUNC_SMBUS_WORD_DATA)) {
 		dev_err(&client->dev, "SMBUS Word Data not Supported\n");
 		return -EIO;
 	}
 
-	return ad_dpot_probe(&client->dev, &bdata, &dpot_id);
+	return ad_dpot_probe(&client->dev, &bdata, id->driver_data, id->name);
 }
 
 static int __devexit ad_dpot_i2c_remove(struct i2c_client *client)
diff --git a/drivers/misc/ad525x_dpot-spi.c b/drivers/misc/ad525x_dpot-spi.c
index 7f9a55afe05d..822749e41fea 100644
--- a/drivers/misc/ad525x_dpot-spi.c
+++ b/drivers/misc/ad525x_dpot-spi.c
@@ -1,7 +1,7 @@
 /*
  * Driver for the Analog Devices digital potentiometers (SPI bus)
  *
- * Copyright (C) 2010 Michael Hennerich, Analog Devices Inc.
+ * Copyright (C) 2010-2011 Michael Hennerich, Analog Devices Inc.
  *
  * Licensed under the GPL-2 or later.
  */
@@ -11,40 +11,6 @@
 
 #include "ad525x_dpot.h"
 
-static const struct ad_dpot_id ad_dpot_spi_devlist[] = {
-	{.name = "ad5160", .devid = AD5160_ID},
-	{.name = "ad5161", .devid = AD5161_ID},
-	{.name = "ad5162", .devid = AD5162_ID},
-	{.name = "ad5165", .devid = AD5165_ID},
-	{.name = "ad5200", .devid = AD5200_ID},
-	{.name = "ad5201", .devid = AD5201_ID},
-	{.name = "ad5203", .devid = AD5203_ID},
-	{.name = "ad5204", .devid = AD5204_ID},
-	{.name = "ad5206", .devid = AD5206_ID},
-	{.name = "ad5207", .devid = AD5207_ID},
-	{.name = "ad5231", .devid = AD5231_ID},
-	{.name = "ad5232", .devid = AD5232_ID},
-	{.name = "ad5233", .devid = AD5233_ID},
-	{.name = "ad5235", .devid = AD5235_ID},
-	{.name = "ad5260", .devid = AD5260_ID},
-	{.name = "ad5262", .devid = AD5262_ID},
-	{.name = "ad5263", .devid = AD5263_ID},
-	{.name = "ad5290", .devid = AD5290_ID},
-	{.name = "ad5291", .devid = AD5291_ID},
-	{.name = "ad5292", .devid = AD5292_ID},
-	{.name = "ad5293", .devid = AD5293_ID},
-	{.name = "ad7376", .devid = AD7376_ID},
-	{.name = "ad8400", .devid = AD8400_ID},
-	{.name = "ad8402", .devid = AD8402_ID},
-	{.name = "ad8403", .devid = AD8403_ID},
-	{.name = "adn2850", .devid = ADN2850_ID},
-	{.name = "ad5270", .devid = AD5270_ID},
-	{.name = "ad5271", .devid = AD5271_ID},
-	{}
-};
-
-/* ------------------------------------------------------------------------- */
-
 /* SPI bus functions */
 static int write8(void *client, u8 val)
 {
@@ -109,36 +75,16 @@ static const struct ad_dpot_bus_ops bops = {
 	.write_r8d8	= write16,
 	.write_r8d16	= write24,
 };
-
-static const struct ad_dpot_id *dpot_match_id(const struct ad_dpot_id *id,
-						char *name)
-{
-	while (id->name && id->name[0]) {
-		if (strcmp(name, id->name) == 0)
-			return id;
-		id++;
-	}
-	return NULL;
-}
-
 static int __devinit ad_dpot_spi_probe(struct spi_device *spi)
 {
-	char *name = spi->dev.platform_data;
-	const struct ad_dpot_id *dpot_id;
-
 	struct ad_dpot_bus_data bdata = {
 		.client = spi,
 		.bops = &bops,
 	};
 
-	dpot_id = dpot_match_id(ad_dpot_spi_devlist, name);
-
-	if (dpot_id == NULL) {
-		dev_err(&spi->dev, "%s not in supported device list", name);
-		return -ENODEV;
-	}
-
-	return ad_dpot_probe(&spi->dev, &bdata, dpot_id);
+	return ad_dpot_probe(&spi->dev, &bdata,
+			     spi_get_device_id(spi)->driver_data,
+			     spi_get_device_id(spi)->name);
 }
 
 static int __devexit ad_dpot_spi_remove(struct spi_device *spi)
@@ -146,14 +92,47 @@ static int __devexit ad_dpot_spi_remove(struct spi_device *spi)
 	return ad_dpot_remove(&spi->dev);
 }
 
+static const struct spi_device_id ad_dpot_spi_id[] = {
+	{"ad5160", AD5160_ID},
+	{"ad5161", AD5161_ID},
+	{"ad5162", AD5162_ID},
+	{"ad5165", AD5165_ID},
+	{"ad5200", AD5200_ID},
+	{"ad5201", AD5201_ID},
+	{"ad5203", AD5203_ID},
+	{"ad5204", AD5204_ID},
+	{"ad5206", AD5206_ID},
+	{"ad5207", AD5207_ID},
+	{"ad5231", AD5231_ID},
+	{"ad5232", AD5232_ID},
+	{"ad5233", AD5233_ID},
+	{"ad5235", AD5235_ID},
+	{"ad5260", AD5260_ID},
+	{"ad5262", AD5262_ID},
+	{"ad5263", AD5263_ID},
+	{"ad5290", AD5290_ID},
+	{"ad5291", AD5291_ID},
+	{"ad5292", AD5292_ID},
+	{"ad5293", AD5293_ID},
+	{"ad7376", AD7376_ID},
+	{"ad8400", AD8400_ID},
+	{"ad8402", AD8402_ID},
+	{"ad8403", AD8403_ID},
+	{"adn2850", ADN2850_ID},
+	{"ad5270", AD5270_ID},
+	{"ad5271", AD5271_ID},
+	{}
+};
+MODULE_DEVICE_TABLE(spi, ad_dpot_spi_id);
+
 static struct spi_driver ad_dpot_spi_driver = {
 	.driver = {
 		.name	= "ad_dpot",
-		.bus	= &spi_bus_type,
 		.owner	= THIS_MODULE,
 	},
 	.probe		= ad_dpot_spi_probe,
 	.remove		= __devexit_p(ad_dpot_spi_remove),
+	.id_table	= ad_dpot_spi_id,
 };
 
 static int __init ad_dpot_spi_init(void)
diff --git a/drivers/misc/ad525x_dpot.c b/drivers/misc/ad525x_dpot.c
index 7cb911028d09..1d1d42615915 100644
--- a/drivers/misc/ad525x_dpot.c
+++ b/drivers/misc/ad525x_dpot.c
@@ -64,7 +64,7 @@
  * Author: Chris Verges <chrisv@cyberswitching.com>
  *
  * derived from ad5252.c
- * Copyright (c) 2006 Michael Hennerich <hennerich@blackfin.uclinux.org>
+ * Copyright (c) 2006-2011 Michael Hennerich <hennerich@blackfin.uclinux.org>
  *
  * Licensed under the GPL-2 or later.
  */
@@ -76,8 +76,6 @@
 #include <linux/delay.h>
 #include <linux/slab.h>
 
-#define DRIVER_VERSION			"0.2"
-
 #include "ad525x_dpot.h"
 
 /*
@@ -687,8 +685,9 @@ inline void ad_dpot_remove_files(struct device *dev,
 	}
 }
 
-__devinit int ad_dpot_probe(struct device *dev,
-		struct ad_dpot_bus_data *bdata, const struct ad_dpot_id *id)
+int __devinit ad_dpot_probe(struct device *dev,
+		struct ad_dpot_bus_data *bdata, unsigned long devid,
+			    const char *name)
 {
 
 	struct dpot_data *data;
@@ -704,13 +703,13 @@ __devinit int ad_dpot_probe(struct device *dev,
 	mutex_init(&data->update_lock);
 
 	data->bdata = *bdata;
-	data->devid = id->devid;
+	data->devid = devid;
 
-	data->max_pos = 1 << DPOT_MAX_POS(data->devid);
+	data->max_pos = 1 << DPOT_MAX_POS(devid);
 	data->rdac_mask = data->max_pos - 1;
-	data->feat = DPOT_FEAT(data->devid);
-	data->uid = DPOT_UID(data->devid);
-	data->wipers = DPOT_WIPERS(data->devid);
+	data->feat = DPOT_FEAT(devid);
+	data->uid = DPOT_UID(devid);
+	data->wipers = DPOT_WIPERS(devid);
 
 	for (i = DPOT_RDAC0; i < MAX_RDACS; i++)
 		if (data->wipers & (1 << i)) {
@@ -731,7 +730,7 @@ __devinit int ad_dpot_probe(struct device *dev,
 	}
 
 	dev_info(dev, "%s %d-Position Digital Potentiometer registered\n",
-		 id->name, data->max_pos);
+		 name, data->max_pos);
 
 	return 0;
 
@@ -745,7 +744,7 @@ exit_free:
 	dev_set_drvdata(dev, NULL);
 exit:
 	dev_err(dev, "failed to create client for %s ID 0x%lX\n",
-			id->name, id->devid);
+		name, devid);
 	return err;
 }
 EXPORT_SYMBOL(ad_dpot_probe);
@@ -770,4 +769,3 @@ MODULE_AUTHOR("Chris Verges <chrisv@cyberswitching.com>, "
 	      "Michael Hennerich <hennerich@blackfin.uclinux.org>");
 MODULE_DESCRIPTION("Digital potentiometer driver");
 MODULE_LICENSE("GPL");
-MODULE_VERSION(DRIVER_VERSION);
diff --git a/drivers/misc/ad525x_dpot.h b/drivers/misc/ad525x_dpot.h
index 82b2cb77ae19..6bd1eba23bc0 100644
--- a/drivers/misc/ad525x_dpot.h
+++ b/drivers/misc/ad525x_dpot.h
@@ -208,12 +208,8 @@ struct ad_dpot_bus_data {
 	const struct ad_dpot_bus_ops *bops;
 };
 
-struct ad_dpot_id {
-	char *name;
-	unsigned long devid;
-};
-
-int ad_dpot_probe(struct device *dev, struct ad_dpot_bus_data *bdata, const struct ad_dpot_id *id);
+int ad_dpot_probe(struct device *dev, struct ad_dpot_bus_data *bdata,
+		  unsigned long devid, const char *name);
 int ad_dpot_remove(struct device *dev);
 
 #endif
diff --git a/drivers/misc/bmp085.c b/drivers/misc/bmp085.c
index 5f898cb706a6..b29a2be24591 100644
--- a/drivers/misc/bmp085.c
+++ b/drivers/misc/bmp085.c
@@ -216,7 +216,7 @@ static s32 bmp085_get_temperature(struct bmp085_data *data, int *temperature)
 		*temperature = (x1+x2+8) >> 4;
 
 exit:
-	return status;;
+	return status;
 }
 
 /*
diff --git a/drivers/misc/isl29020.c b/drivers/misc/isl29020.c
index 307aada5fffe..3d6cce663bea 100644
--- a/drivers/misc/isl29020.c
+++ b/drivers/misc/isl29020.c
@@ -158,7 +158,7 @@ static int als_set_default_config(struct i2c_client *client)
 		dev_err(&client->dev, "default write failed.");
 		return retval;
 	}
-	return 0;;
+	return 0;
 }
 
 static int  isl29020_probe(struct i2c_client *client,
diff --git a/drivers/misc/ti-st/st_core.c b/drivers/misc/ti-st/st_core.c
index ba168a7d54d4..2b62232c2c6a 100644
--- a/drivers/misc/ti-st/st_core.c
+++ b/drivers/misc/ti-st/st_core.c
@@ -137,6 +137,8 @@ void st_send_frame(unsigned char chnl_id, struct st_data_s *st_gdata)
  * st_reg_complete -
  * to call registration complete callbacks
  * of all protocol stack drivers
+ * This function is being called with spin lock held, protocol drivers are
+ * only expected to complete their waits and do nothing more than that.
  */
 void st_reg_complete(struct st_data_s *st_gdata, char err)
 {
@@ -538,11 +540,12 @@ long st_register(struct st_proto_s *new_proto)
 		set_bit(ST_REG_IN_PROGRESS, &st_gdata->st_state);
 		st_recv = st_kim_recv;
 
+		/* enable the ST LL - to set default chip state */
+		st_ll_enable(st_gdata);
+
 		/* release lock previously held - re-locked below */
 		spin_unlock_irqrestore(&st_gdata->lock, flags);
 
-		/* enable the ST LL - to set default chip state */
-		st_ll_enable(st_gdata);
 		/* this may take a while to complete
 		 * since it involves BT fw download
 		 */
@@ -553,10 +556,13 @@ long st_register(struct st_proto_s *new_proto)
 			    (test_bit(ST_REG_PENDING, &st_gdata->st_state))) {
 				pr_err(" KIM failure complete callback ");
 				st_reg_complete(st_gdata, err);
+				clear_bit(ST_REG_PENDING, &st_gdata->st_state);
 			}
 			return -EINVAL;
 		}
 
+		spin_lock_irqsave(&st_gdata->lock, flags);
+
 		clear_bit(ST_REG_IN_PROGRESS, &st_gdata->st_state);
 		st_recv = st_int_recv;
 
@@ -576,10 +582,10 @@ long st_register(struct st_proto_s *new_proto)
 		if (st_gdata->is_registered[new_proto->chnl_id] == true) {
 			pr_err(" proto %d already registered ",
 				   new_proto->chnl_id);
+			spin_unlock_irqrestore(&st_gdata->lock, flags);
 			return -EALREADY;
 		}
 
-		spin_lock_irqsave(&st_gdata->lock, flags);
 		add_channel_to_table(st_gdata, new_proto);
 		st_gdata->protos_registered++;
 		new_proto->write = st_write;
@@ -619,7 +625,7 @@ long st_unregister(struct st_proto_s *proto)
 
 	spin_lock_irqsave(&st_gdata->lock, flags);
 
-	if (st_gdata->list[proto->chnl_id] == NULL) {
+	if (st_gdata->is_registered[proto->chnl_id] == false) {
 		pr_err(" chnl_id %d not registered", proto->chnl_id);
 		spin_unlock_irqrestore(&st_gdata->lock, flags);
 		return -EPROTONOSUPPORT;
@@ -629,6 +635,10 @@ long st_unregister(struct st_proto_s *proto)
 	remove_channel_from_table(st_gdata, proto);
 	spin_unlock_irqrestore(&st_gdata->lock, flags);
 
+	/* paranoid check */
+	if (st_gdata->protos_registered < ST_EMPTY)
+		st_gdata->protos_registered = ST_EMPTY;
+
 	if ((st_gdata->protos_registered == ST_EMPTY) &&
 	    (!test_bit(ST_REG_PENDING, &st_gdata->st_state))) {
 		pr_info(" all chnl_ids unregistered ");
diff --git a/drivers/misc/ti-st/st_kim.c b/drivers/misc/ti-st/st_kim.c
index 43ef8d162f2d..a7a861ceee2d 100644
--- a/drivers/misc/ti-st/st_kim.c
+++ b/drivers/misc/ti-st/st_kim.c
@@ -469,37 +469,21 @@ long st_kim_start(void *kim_data)
 		/* wait for ldisc to be installed */
 		err = wait_for_completion_timeout(&kim_gdata->ldisc_installed,
 				msecs_to_jiffies(LDISC_TIME));
-		if (!err) {	/* timeout */
-			pr_err("line disc installation timed out ");
-			kim_gdata->ldisc_install = 0;
-			pr_info("ldisc_install = 0");
-			sysfs_notify(&kim_gdata->kim_pdev->dev.kobj,
-					NULL, "install");
-			/* the following wait is never going to be completed,
-			 * since the ldisc was never installed, hence serving
-			 * as a mdelay of LDISC_TIME msecs */
-			err = wait_for_completion_timeout
-				(&kim_gdata->ldisc_installed,
-				 msecs_to_jiffies(LDISC_TIME));
-			err = -ETIMEDOUT;
+		if (!err) {
+			/* ldisc installation timeout,
+			 * flush uart, power cycle BT_EN */
+			pr_err("ldisc installation timeout");
+			err = st_kim_stop(kim_gdata);
 			continue;
 		} else {
 			/* ldisc installed now */
-			pr_info(" line discipline installed ");
+			pr_info("line discipline installed");
 			err = download_firmware(kim_gdata);
 			if (err != 0) {
+				/* ldisc installed but fw download failed,
+				 * flush uart & power cycle BT_EN */
 				pr_err("download firmware failed");
-				kim_gdata->ldisc_install = 0;
-				pr_info("ldisc_install = 0");
-				sysfs_notify(&kim_gdata->kim_pdev->dev.kobj,
-						NULL, "install");
-				/* this wait might be completed, though in the
-				 * tty_close() since the ldisc is already
-				 * installed */
-				err = wait_for_completion_timeout
-					(&kim_gdata->ldisc_installed,
-					 msecs_to_jiffies(LDISC_TIME));
-				err = -EINVAL;
+				err = st_kim_stop(kim_gdata);
 				continue;
 			} else {	/* on success don't retry */
 				break;
@@ -510,8 +494,14 @@ long st_kim_start(void *kim_data)
 }
 
 /**
- * st_kim_stop - called from ST Core, on the last un-registration
- *	toggle low the chip enable gpio
+ * st_kim_stop - stop communication with chip.
+ *	This can be called from ST Core/KIM, on the-
+ *	(a) last un-register when chip need not be powered there-after,
+ *	(b) upon failure to either install ldisc or download firmware.
+ *	The function is responsible to (a) notify UIM about un-installation,
+ *	(b) flush UART if the ldisc was installed.
+ *	(c) reset BT_EN - pull down nshutdown at the end.
+ *	(d) invoke platform's chip disabling routine.
  */
 long st_kim_stop(void *kim_data)
 {
@@ -519,12 +509,16 @@ long st_kim_stop(void *kim_data)
 	struct kim_data_s	*kim_gdata = (struct kim_data_s *)kim_data;
 	struct ti_st_plat_data	*pdata =
 		kim_gdata->kim_pdev->dev.platform_data;
+	struct tty_struct	*tty = kim_gdata->core_data->tty;
 
 	INIT_COMPLETION(kim_gdata->ldisc_installed);
 
-	/* Flush any pending characters in the driver and discipline. */
-	tty_ldisc_flush(kim_gdata->core_data->tty);
-	tty_driver_flush_buffer(kim_gdata->core_data->tty);
+	if (tty) {	/* can be called before ldisc is installed */
+		/* Flush any pending characters in the driver and discipline. */
+		tty_ldisc_flush(tty);
+		tty_driver_flush_buffer(tty);
+		tty->ops->flush_buffer(tty);
+	}
 
 	/* send uninstall notification to UIM */
 	pr_info("ldisc_install = 0");
@@ -579,6 +573,28 @@ static ssize_t show_install(struct device *dev,
 	return sprintf(buf, "%d\n", kim_data->ldisc_install);
 }
 
+#ifdef DEBUG
+static ssize_t store_dev_name(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct kim_data_s *kim_data = dev_get_drvdata(dev);
+	pr_debug("storing dev name >%s<", buf);
+	strncpy(kim_data->dev_name, buf, count);
+	pr_debug("stored dev name >%s<", kim_data->dev_name);
+	return count;
+}
+
+static ssize_t store_baud_rate(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct kim_data_s *kim_data = dev_get_drvdata(dev);
+	pr_debug("storing baud rate >%s<", buf);
+	sscanf(buf, "%ld", &kim_data->baud_rate);
+	pr_debug("stored baud rate >%ld<", kim_data->baud_rate);
+	return count;
+}
+#endif	/* if DEBUG */
+
 static ssize_t show_dev_name(struct device *dev,
 		struct device_attribute *attr, char *buf)
 {
@@ -605,10 +621,18 @@ static struct kobj_attribute ldisc_install =
 __ATTR(install, 0444, (void *)show_install, NULL);
 
 static struct kobj_attribute uart_dev_name =
+#ifdef DEBUG	/* TODO: move this to debug-fs if possible */
+__ATTR(dev_name, 0644, (void *)show_dev_name, (void *)store_dev_name);
+#else
 __ATTR(dev_name, 0444, (void *)show_dev_name, NULL);
+#endif
 
 static struct kobj_attribute uart_baud_rate =
+#ifdef DEBUG	/* TODO: move to debugfs */
+__ATTR(baud_rate, 0644, (void *)show_baud_rate, (void *)store_baud_rate);
+#else
 __ATTR(baud_rate, 0444, (void *)show_baud_rate, NULL);
+#endif
 
 static struct kobj_attribute uart_flow_cntrl =
 __ATTR(flow_cntrl, 0444, (void *)show_flow_cntrl, NULL);
diff --git a/drivers/mmc/host/at91_mci.c b/drivers/mmc/host/at91_mci.c
index a8b4d2aa18e5..f437c3e6f3aa 100644
--- a/drivers/mmc/host/at91_mci.c
+++ b/drivers/mmc/host/at91_mci.c
@@ -741,7 +741,7 @@ static void at91_mci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 	at91_mci_write(host, AT91_MCI_MR, (at91_mci_read(host, AT91_MCI_MR) & ~AT91_MCI_CLKDIV) | clkdiv);
 
 	/* maybe switch power to the card */
-	if (host->board->vcc_pin) {
+	if (gpio_is_valid(host->board->vcc_pin)) {
 		switch (ios->power_mode) {
 			case MMC_POWER_OFF:
 				gpio_set_value(host->board->vcc_pin, 0);
@@ -897,7 +897,7 @@ static int at91_mci_get_ro(struct mmc_host *mmc)
 {
 	struct at91mci_host *host = mmc_priv(mmc);
 
-	if (host->board->wp_pin)
+	if (gpio_is_valid(host->board->wp_pin))
 		return !!gpio_get_value(host->board->wp_pin);
 	/*
 	 * Board doesn't support read only detection; let the mmc core
@@ -991,21 +991,21 @@ static int __init at91_mci_probe(struct platform_device *pdev)
 	 * Reserve GPIOs ... board init code makes sure these pins are set
 	 * up as GPIOs with the right direction (input, except for vcc)
 	 */
-	if (host->board->det_pin) {
+	if (gpio_is_valid(host->board->det_pin)) {
 		ret = gpio_request(host->board->det_pin, "mmc_detect");
 		if (ret < 0) {
 			dev_dbg(&pdev->dev, "couldn't claim card detect pin\n");
 			goto fail4b;
 		}
 	}
-	if (host->board->wp_pin) {
+	if (gpio_is_valid(host->board->wp_pin)) {
 		ret = gpio_request(host->board->wp_pin, "mmc_wp");
 		if (ret < 0) {
 			dev_dbg(&pdev->dev, "couldn't claim wp sense pin\n");
 			goto fail4;
 		}
 	}
-	if (host->board->vcc_pin) {
+	if (gpio_is_valid(host->board->vcc_pin)) {
 		ret = gpio_request(host->board->vcc_pin, "mmc_vcc");
 		if (ret < 0) {
 			dev_dbg(&pdev->dev, "couldn't claim vcc switch pin\n");
@@ -1057,7 +1057,7 @@ static int __init at91_mci_probe(struct platform_device *pdev)
 	/*
 	 * Add host to MMC layer
 	 */
-	if (host->board->det_pin) {
+	if (gpio_is_valid(host->board->det_pin)) {
 		host->present = !gpio_get_value(host->board->det_pin);
 	}
 	else
@@ -1068,7 +1068,7 @@ static int __init at91_mci_probe(struct platform_device *pdev)
 	/*
 	 * monitor card insertion/removal if we can
 	 */
-	if (host->board->det_pin) {
+	if (gpio_is_valid(host->board->det_pin)) {
 		ret = request_irq(gpio_to_irq(host->board->det_pin),
 				at91_mmc_det_irq, 0, mmc_hostname(mmc), host);
 		if (ret)
@@ -1087,13 +1087,13 @@ fail0:
 fail1:
 	clk_put(host->mci_clk);
 fail2:
-	if (host->board->vcc_pin)
+	if (gpio_is_valid(host->board->vcc_pin))
 		gpio_free(host->board->vcc_pin);
 fail3:
-	if (host->board->wp_pin)
+	if (gpio_is_valid(host->board->wp_pin))
 		gpio_free(host->board->wp_pin);
 fail4:
-	if (host->board->det_pin)
+	if (gpio_is_valid(host->board->det_pin))
 		gpio_free(host->board->det_pin);
 fail4b:
 	if (host->buffer)
@@ -1125,7 +1125,7 @@ static int __exit at91_mci_remove(struct platform_device *pdev)
 		dma_free_coherent(&pdev->dev, MCI_BUFSIZE,
 				host->buffer, host->physical_address);
 
-	if (host->board->det_pin) {
+	if (gpio_is_valid(host->board->det_pin)) {
 		if (device_can_wakeup(&pdev->dev))
 			free_irq(gpio_to_irq(host->board->det_pin), host);
 		device_init_wakeup(&pdev->dev, 0);
@@ -1140,9 +1140,9 @@ static int __exit at91_mci_remove(struct platform_device *pdev)
 	clk_disable(host->mci_clk);			/* Disable the peripheral clock */
 	clk_put(host->mci_clk);
 
-	if (host->board->vcc_pin)
+	if (gpio_is_valid(host->board->vcc_pin))
 		gpio_free(host->board->vcc_pin);
-	if (host->board->wp_pin)
+	if (gpio_is_valid(host->board->wp_pin))
 		gpio_free(host->board->wp_pin);
 
 	iounmap(host->baseaddr);
@@ -1163,7 +1163,7 @@ static int at91_mci_suspend(struct platform_device *pdev, pm_message_t state)
 	struct at91mci_host *host = mmc_priv(mmc);
 	int ret = 0;
 
-	if (host->board->det_pin && device_may_wakeup(&pdev->dev))
+	if (gpio_is_valid(host->board->det_pin) && device_may_wakeup(&pdev->dev))
 		enable_irq_wake(host->board->det_pin);
 
 	if (mmc)
@@ -1178,7 +1178,7 @@ static int at91_mci_resume(struct platform_device *pdev)
 	struct at91mci_host *host = mmc_priv(mmc);
 	int ret = 0;
 
-	if (host->board->det_pin && device_may_wakeup(&pdev->dev))
+	if (gpio_is_valid(host->board->det_pin) && device_may_wakeup(&pdev->dev))
 		disable_irq_wake(host->board->det_pin);
 
 	if (mmc)
diff --git a/drivers/mmc/host/mvsdio.c b/drivers/mmc/host/mvsdio.c
index 211a4959c293..eeb8cd125b0c 100644
--- a/drivers/mmc/host/mvsdio.c
+++ b/drivers/mmc/host/mvsdio.c
@@ -679,8 +679,9 @@ static const struct mmc_host_ops mvsd_ops = {
 	.enable_sdio_irq	= mvsd_enable_sdio_irq,
 };
 
-static void __init mv_conf_mbus_windows(struct mvsd_host *host,
-					struct mbus_dram_target_info *dram)
+static void __init
+mv_conf_mbus_windows(struct mvsd_host *host,
+		     const struct mbus_dram_target_info *dram)
 {
 	void __iomem *iobase = host->base;
 	int i;
@@ -691,7 +692,7 @@ static void __init mv_conf_mbus_windows(struct mvsd_host *host,
 	}
 
 	for (i = 0; i < dram->num_cs; i++) {
-		struct mbus_dram_window *cs = dram->cs + i;
+		const struct mbus_dram_window *cs = dram->cs + i;
 		writel(((cs->size - 1) & 0xffff0000) |
 		       (cs->mbus_attr << 8) |
 		       (dram->mbus_dram_target_id << 4) | 1,
@@ -705,6 +706,7 @@ static int __init mvsd_probe(struct platform_device *pdev)
 	struct mmc_host *mmc = NULL;
 	struct mvsd_host *host = NULL;
 	const struct mvsdio_platform_data *mvsd_data;
+	const struct mbus_dram_target_info *dram;
 	struct resource *r;
 	int ret, irq;
 
@@ -755,8 +757,9 @@ static int __init mvsd_probe(struct platform_device *pdev)
 	}
 
 	/* (Re-)program MBUS remapping windows if we are asked to. */
-	if (mvsd_data->dram != NULL)
-		mv_conf_mbus_windows(host, mvsd_data->dram);
+	dram = mv_mbus_dram_info();
+	if (dram)
+		mv_conf_mbus_windows(host, dram);
 
 	mvsd_power_down(host);
 
diff --git a/drivers/mmc/host/mxs-mmc.c b/drivers/mmc/host/mxs-mmc.c
index 99b449d26a4d..973011f9a298 100644
--- a/drivers/mmc/host/mxs-mmc.c
+++ b/drivers/mmc/host/mxs-mmc.c
@@ -713,7 +713,7 @@ static int mxs_mmc_probe(struct platform_device *pdev)
 		ret = PTR_ERR(host->clk);
 		goto out_iounmap;
 	}
-	clk_enable(host->clk);
+	clk_prepare_enable(host->clk);
 
 	mxs_mmc_reset(host);
 
@@ -772,7 +772,7 @@ out_free_dma:
 	if (host->dmach)
 		dma_release_channel(host->dmach);
 out_clk_put:
-	clk_disable(host->clk);
+	clk_disable_unprepare(host->clk);
 	clk_put(host->clk);
 out_iounmap:
 	iounmap(host->base);
@@ -798,7 +798,7 @@ static int mxs_mmc_remove(struct platform_device *pdev)
 	if (host->dmach)
 		dma_release_channel(host->dmach);
 
-	clk_disable(host->clk);
+	clk_disable_unprepare(host->clk);
 	clk_put(host->clk);
 
 	iounmap(host->base);
@@ -819,7 +819,7 @@ static int mxs_mmc_suspend(struct device *dev)
 
 	ret = mmc_suspend_host(mmc);
 
-	clk_disable(host->clk);
+	clk_disable_unprepare(host->clk);
 
 	return ret;
 }
@@ -830,7 +830,7 @@ static int mxs_mmc_resume(struct device *dev)
 	struct mxs_mmc_host *host = mmc_priv(mmc);
 	int ret = 0;
 
-	clk_enable(host->clk);
+	clk_prepare_enable(host->clk);
 
 	ret = mmc_resume_host(mmc);
 
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index d5fe43d53c51..d1fb561e089d 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -1991,6 +1991,8 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev)
 	if (mmc_slot(host).nonremovable)
 		mmc->caps |= MMC_CAP_NONREMOVABLE;
 
+	mmc->pm_caps = mmc_slot(host).pm_caps;
+
 	omap_hsmmc_conf_bus_power(host);
 
 	/* Select DMA lines */
@@ -2179,13 +2181,7 @@ static int omap_hsmmc_suspend(struct device *dev)
 		cancel_work_sync(&host->mmc_carddetect_work);
 		ret = mmc_suspend_host(host->mmc);
 
-		if (ret == 0) {
-			omap_hsmmc_disable_irq(host);
-			OMAP_HSMMC_WRITE(host->base, HCTL,
-				OMAP_HSMMC_READ(host->base, HCTL) & ~SDBP);
-			if (host->got_dbclk)
-				clk_disable(host->dbclk);
-		} else {
+		if (ret) {
 			host->suspended = 0;
 			if (host->pdata->resume) {
 				ret = host->pdata->resume(&pdev->dev,
@@ -2194,9 +2190,20 @@ static int omap_hsmmc_suspend(struct device *dev)
 					dev_dbg(mmc_dev(host->mmc),
 						"Unmask interrupt failed\n");
 			}
+			goto err;
 		}
-		pm_runtime_put_sync(host->dev);
+
+		if (!(host->mmc->pm_flags & MMC_PM_KEEP_POWER)) {
+			omap_hsmmc_disable_irq(host);
+			OMAP_HSMMC_WRITE(host->base, HCTL,
+				OMAP_HSMMC_READ(host->base, HCTL) & ~SDBP);
+		}
+		if (host->got_dbclk)
+			clk_disable(host->dbclk);
+
 	}
+err:
+	pm_runtime_put_sync(host->dev);
 	return ret;
 }
 
@@ -2216,7 +2223,8 @@ static int omap_hsmmc_resume(struct device *dev)
 		if (host->got_dbclk)
 			clk_enable(host->dbclk);
 
-		omap_hsmmc_conf_bus_power(host);
+		if (!(host->mmc->pm_flags & MMC_PM_KEEP_POWER))
+			omap_hsmmc_conf_bus_power(host);
 
 		if (host->pdata->resume) {
 			ret = host->pdata->resume(&pdev->dev, host->slot_id);
diff --git a/drivers/mmc/host/sdhci-s3c.c b/drivers/mmc/host/sdhci-s3c.c
index 0d33ff0d67fb..9a20d1f55bb7 100644
--- a/drivers/mmc/host/sdhci-s3c.c
+++ b/drivers/mmc/host/sdhci-s3c.c
@@ -435,14 +435,11 @@ static int __devinit sdhci_s3c_probe(struct platform_device *pdev)
 
 	for (clks = 0, ptr = 0; ptr < MAX_BUS_CLK; ptr++) {
 		struct clk *clk;
-		char *name = pdata->clocks[ptr];
-
-		if (name == NULL)
-			continue;
+		char name[14];
 
+		snprintf(name, 14, "mmc_busclk.%d", ptr);
 		clk = clk_get(dev, name);
 		if (IS_ERR(clk)) {
-			dev_err(dev, "failed to get clock %s\n", name);
 			continue;
 		}
 
diff --git a/drivers/mtd/Kconfig b/drivers/mtd/Kconfig
index 318a869286ab..1be621841400 100644
--- a/drivers/mtd/Kconfig
+++ b/drivers/mtd/Kconfig
@@ -140,6 +140,14 @@ config MTD_AR7_PARTS
 	---help---
 	  TI AR7 partitioning support
 
+config MTD_BCM63XX_PARTS
+	tristate "BCM63XX CFE partitioning support"
+	depends on BCM63XX
+	select CRC32
+	help
+	  This provides partions parsing for BCM63xx devices with CFE
+	  bootloaders.
+
 comment "User Modules And Translation Layers"
 
 config MTD_CHAR
diff --git a/drivers/mtd/Makefile b/drivers/mtd/Makefile
index 9aaac3ac89f3..f90135429dc7 100644
--- a/drivers/mtd/Makefile
+++ b/drivers/mtd/Makefile
@@ -11,6 +11,7 @@ obj-$(CONFIG_MTD_REDBOOT_PARTS) += redboot.o
 obj-$(CONFIG_MTD_CMDLINE_PARTS) += cmdlinepart.o
 obj-$(CONFIG_MTD_AFS_PARTS)	+= afs.o
 obj-$(CONFIG_MTD_AR7_PARTS)	+= ar7part.o
+obj-$(CONFIG_MTD_BCM63XX_PARTS)	+= bcm63xxpart.o
 
 # 'Users' - code which presents functionality to userspace.
 obj-$(CONFIG_MTD_CHAR)		+= mtdchar.o
diff --git a/drivers/mtd/afs.c b/drivers/mtd/afs.c
index 89a02f6f65dc..5a3942bf109c 100644
--- a/drivers/mtd/afs.c
+++ b/drivers/mtd/afs.c
@@ -75,7 +75,7 @@ afs_read_footer(struct mtd_info *mtd, u_int *img_start, u_int *iis_start,
 	size_t sz;
 	int ret;
 
-	ret = mtd->read(mtd, ptr, sizeof(fs), &sz, (u_char *) &fs);
+	ret = mtd_read(mtd, ptr, sizeof(fs), &sz, (u_char *)&fs);
 	if (ret >= 0 && sz != sizeof(fs))
 		ret = -EINVAL;
 
@@ -132,7 +132,7 @@ afs_read_iis(struct mtd_info *mtd, struct image_info_struct *iis, u_int ptr)
 	int ret, i;
 
 	memset(iis, 0, sizeof(*iis));
-	ret = mtd->read(mtd, ptr, sizeof(*iis), &sz, (u_char *) iis);
+	ret = mtd_read(mtd, ptr, sizeof(*iis), &sz, (u_char *)iis);
 	if (ret < 0)
 		goto failed;
 
diff --git a/drivers/mtd/ar7part.c b/drivers/mtd/ar7part.c
index f40ea4547554..945393129952 100644
--- a/drivers/mtd/ar7part.c
+++ b/drivers/mtd/ar7part.c
@@ -73,8 +73,8 @@ static int create_mtd_partitions(struct mtd_info *master,
 
 	do { /* Try 10 blocks starting from master->erasesize */
 		offset = pre_size;
-		master->read(master, offset,
-			     sizeof(header), &len, (uint8_t *)&header);
+		mtd_read(master, offset, sizeof(header), &len,
+			 (uint8_t *)&header);
 		if (!strncmp((char *)&header, "TIENV0.8", 8))
 			ar7_parts[1].offset = pre_size;
 		if (header.checksum == LOADER_MAGIC1)
@@ -95,16 +95,16 @@ static int create_mtd_partitions(struct mtd_info *master,
 	case LOADER_MAGIC1:
 		while (header.length) {
 			offset += sizeof(header) + header.length;
-			master->read(master, offset, sizeof(header),
-				     &len, (uint8_t *)&header);
+			mtd_read(master, offset, sizeof(header), &len,
+				 (uint8_t *)&header);
 		}
 		root_offset = offset + sizeof(header) + 4;
 		break;
 	case LOADER_MAGIC2:
 		while (header.length) {
 			offset += sizeof(header) + header.length;
-			master->read(master, offset, sizeof(header),
-				     &len, (uint8_t *)&header);
+			mtd_read(master, offset, sizeof(header), &len,
+				 (uint8_t *)&header);
 		}
 		root_offset = offset + sizeof(header) + 4 + 0xff;
 		root_offset &= ~(uint32_t)0xff;
@@ -114,8 +114,7 @@ static int create_mtd_partitions(struct mtd_info *master,
 		break;
 	}
 
-	master->read(master, root_offset,
-		sizeof(header), &len, (u8 *)&header);
+	mtd_read(master, root_offset, sizeof(header), &len, (u8 *)&header);
 	if (header.checksum != SQUASHFS_MAGIC) {
 		root_offset += master->erasesize - 1;
 		root_offset &= ~(master->erasesize - 1);
diff --git a/drivers/mtd/bcm63xxpart.c b/drivers/mtd/bcm63xxpart.c
new file mode 100644
index 000000000000..608321ee056e
--- /dev/null
+++ b/drivers/mtd/bcm63xxpart.c
@@ -0,0 +1,222 @@
+/*
+ * BCM63XX CFE image tag parser
+ *
+ * Copyright © 2006-2008  Florian Fainelli <florian@openwrt.org>
+ *			  Mike Albon <malbon@openwrt.org>
+ * Copyright © 2009-2010  Daniel Dickinson <openwrt@cshore.neomailbox.net>
+ * Copyright © 2011 Jonas Gorski <jonas.gorski@gmail.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ */
+
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
+#include <linux/crc32.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/mtd/mtd.h>
+#include <linux/mtd/partitions.h>
+
+#include <asm/mach-bcm63xx/bcm963xx_tag.h>
+#include <asm/mach-bcm63xx/board_bcm963xx.h>
+
+#define BCM63XX_EXTENDED_SIZE	0xBFC00000	/* Extended flash address */
+
+#define BCM63XX_MIN_CFE_SIZE	0x10000		/* always at least 64KiB */
+#define BCM63XX_MIN_NVRAM_SIZE	0x10000		/* always at least 64KiB */
+
+#define BCM63XX_CFE_MAGIC_OFFSET 0x4e0
+
+static int bcm63xx_detect_cfe(struct mtd_info *master)
+{
+	char buf[9];
+	int ret;
+	size_t retlen;
+
+	ret = mtd_read(master, BCM963XX_CFE_VERSION_OFFSET, 5, &retlen,
+		       (void *)buf);
+	buf[retlen] = 0;
+
+	if (ret)
+		return ret;
+
+	if (strncmp("cfe-v", buf, 5) == 0)
+		return 0;
+
+	/* very old CFE's do not have the cfe-v string, so check for magic */
+	ret = mtd_read(master, BCM63XX_CFE_MAGIC_OFFSET, 8, &retlen,
+		       (void *)buf);
+	buf[retlen] = 0;
+
+	return strncmp("CFE1CFE1", buf, 8);
+}
+
+static int bcm63xx_parse_cfe_partitions(struct mtd_info *master,
+					struct mtd_partition **pparts,
+					struct mtd_part_parser_data *data)
+{
+	/* CFE, NVRAM and global Linux are always present */
+	int nrparts = 3, curpart = 0;
+	struct bcm_tag *buf;
+	struct mtd_partition *parts;
+	int ret;
+	size_t retlen;
+	unsigned int rootfsaddr, kerneladdr, spareaddr;
+	unsigned int rootfslen, kernellen, sparelen, totallen;
+	unsigned int cfelen, nvramlen;
+	int namelen = 0;
+	int i;
+	u32 computed_crc;
+
+	if (bcm63xx_detect_cfe(master))
+		return -EINVAL;
+
+	cfelen = max_t(uint32_t, master->erasesize, BCM63XX_MIN_CFE_SIZE);
+	nvramlen = max_t(uint32_t, master->erasesize, BCM63XX_MIN_NVRAM_SIZE);
+
+	/* Allocate memory for buffer */
+	buf = vmalloc(sizeof(struct bcm_tag));
+	if (!buf)
+		return -ENOMEM;
+
+	/* Get the tag */
+	ret = mtd_read(master, cfelen, sizeof(struct bcm_tag), &retlen,
+		       (void *)buf);
+
+	if (retlen != sizeof(struct bcm_tag)) {
+		vfree(buf);
+		return -EIO;
+	}
+
+	computed_crc = crc32_le(IMAGETAG_CRC_START, (u8 *)buf,
+				offsetof(struct bcm_tag, header_crc));
+	if (computed_crc == buf->header_crc) {
+		char *boardid = &(buf->board_id[0]);
+		char *tagversion = &(buf->tag_version[0]);
+
+		sscanf(buf->kernel_address, "%u", &kerneladdr);
+		sscanf(buf->kernel_length, "%u", &kernellen);
+		sscanf(buf->total_length, "%u", &totallen);
+
+		pr_info("CFE boot tag found with version %s and board type %s\n",
+			tagversion, boardid);
+
+		kerneladdr = kerneladdr - BCM63XX_EXTENDED_SIZE;
+		rootfsaddr = kerneladdr + kernellen;
+		spareaddr = roundup(totallen, master->erasesize) + cfelen;
+		sparelen = master->size - spareaddr - nvramlen;
+		rootfslen = spareaddr - rootfsaddr;
+	} else {
+		pr_warn("CFE boot tag CRC invalid (expected %08x, actual %08x)\n",
+			buf->header_crc, computed_crc);
+		kernellen = 0;
+		rootfslen = 0;
+		rootfsaddr = 0;
+		spareaddr = cfelen;
+		sparelen = master->size - cfelen - nvramlen;
+	}
+
+	/* Determine number of partitions */
+	namelen = 8;
+	if (rootfslen > 0) {
+		nrparts++;
+		namelen += 6;
+	}
+	if (kernellen > 0) {
+		nrparts++;
+		namelen += 6;
+	}
+
+	/* Ask kernel for more memory */
+	parts = kzalloc(sizeof(*parts) * nrparts + 10 * nrparts, GFP_KERNEL);
+	if (!parts) {
+		vfree(buf);
+		return -ENOMEM;
+	}
+
+	/* Start building partition list */
+	parts[curpart].name = "CFE";
+	parts[curpart].offset = 0;
+	parts[curpart].size = cfelen;
+	curpart++;
+
+	if (kernellen > 0) {
+		parts[curpart].name = "kernel";
+		parts[curpart].offset = kerneladdr;
+		parts[curpart].size = kernellen;
+		curpart++;
+	}
+
+	if (rootfslen > 0) {
+		parts[curpart].name = "rootfs";
+		parts[curpart].offset = rootfsaddr;
+		parts[curpart].size = rootfslen;
+		if (sparelen > 0)
+			parts[curpart].size += sparelen;
+		curpart++;
+	}
+
+	parts[curpart].name = "nvram";
+	parts[curpart].offset = master->size - nvramlen;
+	parts[curpart].size = nvramlen;
+
+	/* Global partition "linux" to make easy firmware upgrade */
+	curpart++;
+	parts[curpart].name = "linux";
+	parts[curpart].offset = cfelen;
+	parts[curpart].size = master->size - cfelen - nvramlen;
+
+	for (i = 0; i < nrparts; i++)
+		pr_info("Partition %d is %s offset %lx and length %lx\n", i,
+			parts[i].name, (long unsigned int)(parts[i].offset),
+			(long unsigned int)(parts[i].size));
+
+	pr_info("Spare partition is offset %x and length %x\n",	spareaddr,
+		sparelen);
+
+	*pparts = parts;
+	vfree(buf);
+
+	return nrparts;
+};
+
+static struct mtd_part_parser bcm63xx_cfe_parser = {
+	.owner = THIS_MODULE,
+	.parse_fn = bcm63xx_parse_cfe_partitions,
+	.name = "bcm63xxpart",
+};
+
+static int __init bcm63xx_cfe_parser_init(void)
+{
+	return register_mtd_parser(&bcm63xx_cfe_parser);
+}
+
+static void __exit bcm63xx_cfe_parser_exit(void)
+{
+	deregister_mtd_parser(&bcm63xx_cfe_parser);
+}
+
+module_init(bcm63xx_cfe_parser_init);
+module_exit(bcm63xx_cfe_parser_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Daniel Dickinson <openwrt@cshore.neomailbox.net>");
+MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
+MODULE_AUTHOR("Mike Albon <malbon@openwrt.org>");
+MODULE_AUTHOR("Jonas Gorski <jonas.gorski@gmail.com");
+MODULE_DESCRIPTION("MTD partitioning for BCM63XX CFE bootloaders");
diff --git a/drivers/mtd/chips/cfi_cmdset_0020.c b/drivers/mtd/chips/cfi_cmdset_0020.c
index 179814a95f3a..85e80180b65b 100644
--- a/drivers/mtd/chips/cfi_cmdset_0020.c
+++ b/drivers/mtd/chips/cfi_cmdset_0020.c
@@ -139,8 +139,9 @@ struct mtd_info *cfi_cmdset_0020(struct map_info *map, int primary)
 		}
 
 		/* Do some byteswapping if necessary */
-		extp->FeatureSupport = cfi32_to_cpu(extp->FeatureSupport);
-		extp->BlkStatusRegMask = cfi32_to_cpu(extp->BlkStatusRegMask);
+		extp->FeatureSupport = cfi32_to_cpu(map, extp->FeatureSupport);
+		extp->BlkStatusRegMask = cfi32_to_cpu(map,
+						extp->BlkStatusRegMask);
 
 #ifdef DEBUG_CFI_FEATURES
 		/* Tell the user about it in lots of lovely detail */
@@ -698,7 +699,8 @@ cfi_staa_writev(struct mtd_info *mtd, const struct kvec *vecs,
 				continue;
 			}
 			memcpy(buffer+buflen, elem_base, ECCBUF_SIZE-buflen);
-			ret = mtd->write(mtd, to, ECCBUF_SIZE, &thislen, buffer);
+			ret = mtd_write(mtd, to, ECCBUF_SIZE, &thislen,
+					buffer);
 			totlen += thislen;
 			if (ret || thislen != ECCBUF_SIZE)
 				goto write_error;
@@ -707,7 +709,8 @@ cfi_staa_writev(struct mtd_info *mtd, const struct kvec *vecs,
 			to += ECCBUF_SIZE;
 		}
 		if (ECCBUF_DIV(elem_len)) { /* write clean aligned data */
-			ret = mtd->write(mtd, to, ECCBUF_DIV(elem_len), &thislen, elem_base);
+			ret = mtd_write(mtd, to, ECCBUF_DIV(elem_len),
+					&thislen, elem_base);
 			totlen += thislen;
 			if (ret || thislen != ECCBUF_DIV(elem_len))
 				goto write_error;
@@ -721,7 +724,7 @@ cfi_staa_writev(struct mtd_info *mtd, const struct kvec *vecs,
 	}
 	if (buflen) { /* flush last page, even if not full */
 		/* This is sometimes intended behaviour, really */
-		ret = mtd->write(mtd, to, buflen, &thislen, buffer);
+		ret = mtd_write(mtd, to, buflen, &thislen, buffer);
 		totlen += thislen;
 		if (ret || thislen != ECCBUF_SIZE)
 			goto write_error;
diff --git a/drivers/mtd/devices/Kconfig b/drivers/mtd/devices/Kconfig
index 283d887f7825..37b05c3f2792 100644
--- a/drivers/mtd/devices/Kconfig
+++ b/drivers/mtd/devices/Kconfig
@@ -191,6 +191,7 @@ comment "Disk-On-Chip Device Drivers"
 
 config MTD_DOC2000
 	tristate "M-Systems Disk-On-Chip 2000 and Millennium (DEPRECATED)"
+	depends on MTD_NAND
 	select MTD_DOCPROBE
 	select MTD_NAND_IDS
 	---help---
@@ -213,6 +214,7 @@ config MTD_DOC2000
 
 config MTD_DOC2001
 	tristate "M-Systems Disk-On-Chip Millennium-only alternative driver (DEPRECATED)"
+	depends on MTD_NAND
 	select MTD_DOCPROBE
 	select MTD_NAND_IDS
 	---help---
@@ -234,6 +236,7 @@ config MTD_DOC2001
 
 config MTD_DOC2001PLUS
 	tristate "M-Systems Disk-On-Chip Millennium Plus"
+	depends on MTD_NAND
 	select MTD_DOCPROBE
 	select MTD_NAND_IDS
 	---help---
@@ -251,6 +254,8 @@ config MTD_DOC2001PLUS
 
 config MTD_DOCG3
 	tristate "M-Systems Disk-On-Chip G3"
+	select BCH
+	select BCH_CONST_PARAMS
 	---help---
 	  This provides an MTD device driver for the M-Systems DiskOnChip
 	  G3 devices.
@@ -259,6 +264,13 @@ config MTD_DOCG3
 	  M-Systems and now Sandisk. The support is very experimental,
 	  and doesn't give access to any write operations.
 
+if MTD_DOCG3
+config BCH_CONST_M
+	default 14
+config BCH_CONST_T
+	default 4
+endif
+
 config MTD_DOCPROBE
 	tristate
 	select MTD_DOCECC
diff --git a/drivers/mtd/devices/block2mtd.c b/drivers/mtd/devices/block2mtd.c
index ebeabc727f70..e7e46d1e7463 100644
--- a/drivers/mtd/devices/block2mtd.c
+++ b/drivers/mtd/devices/block2mtd.c
@@ -287,7 +287,7 @@ static struct block2mtd_dev *add_device(char *devname, int erase_size)
 	dev->mtd.flags = MTD_CAP_RAM;
 	dev->mtd.erase = block2mtd_erase;
 	dev->mtd.write = block2mtd_write;
-	dev->mtd.writev = default_mtd_writev;
+	dev->mtd.writev = mtd_writev;
 	dev->mtd.sync = block2mtd_sync;
 	dev->mtd.read = block2mtd_read;
 	dev->mtd.priv = dev;
diff --git a/drivers/mtd/devices/doc2000.c b/drivers/mtd/devices/doc2000.c
index e9fad9151219..b1cdf6479019 100644
--- a/drivers/mtd/devices/doc2000.c
+++ b/drivers/mtd/devices/doc2000.c
@@ -562,23 +562,14 @@ void DoC2k_init(struct mtd_info *mtd)
 
 	mtd->type = MTD_NANDFLASH;
 	mtd->flags = MTD_CAP_NANDFLASH;
-	mtd->size = 0;
-	mtd->erasesize = 0;
 	mtd->writesize = 512;
 	mtd->oobsize = 16;
 	mtd->owner = THIS_MODULE;
 	mtd->erase = doc_erase;
-	mtd->point = NULL;
-	mtd->unpoint = NULL;
 	mtd->read = doc_read;
 	mtd->write = doc_write;
 	mtd->read_oob = doc_read_oob;
 	mtd->write_oob = doc_write_oob;
-	mtd->sync = NULL;
-
-	this->totlen = 0;
-	this->numchips = 0;
-
 	this->curfloor = -1;
 	this->curchip = -1;
 	mutex_init(&this->lock);
diff --git a/drivers/mtd/devices/doc2001.c b/drivers/mtd/devices/doc2001.c
index a3f7a27499be..7543b98f46c4 100644
--- a/drivers/mtd/devices/doc2001.c
+++ b/drivers/mtd/devices/doc2001.c
@@ -343,25 +343,17 @@ void DoCMil_init(struct mtd_info *mtd)
 
 	mtd->type = MTD_NANDFLASH;
 	mtd->flags = MTD_CAP_NANDFLASH;
-	mtd->size = 0;
 
 	/* FIXME: erase size is not always 8KiB */
 	mtd->erasesize = 0x2000;
-
 	mtd->writesize = 512;
 	mtd->oobsize = 16;
 	mtd->owner = THIS_MODULE;
 	mtd->erase = doc_erase;
-	mtd->point = NULL;
-	mtd->unpoint = NULL;
 	mtd->read = doc_read;
 	mtd->write = doc_write;
 	mtd->read_oob = doc_read_oob;
 	mtd->write_oob = doc_write_oob;
-	mtd->sync = NULL;
-
-	this->totlen = 0;
-	this->numchips = 0;
 	this->curfloor = -1;
 	this->curchip = -1;
 
diff --git a/drivers/mtd/devices/doc2001plus.c b/drivers/mtd/devices/doc2001plus.c
index 99351bc3e0ed..177510d0e7ee 100644
--- a/drivers/mtd/devices/doc2001plus.c
+++ b/drivers/mtd/devices/doc2001plus.c
@@ -467,23 +467,14 @@ void DoCMilPlus_init(struct mtd_info *mtd)
 
 	mtd->type = MTD_NANDFLASH;
 	mtd->flags = MTD_CAP_NANDFLASH;
-	mtd->size = 0;
-
-	mtd->erasesize = 0;
 	mtd->writesize = 512;
 	mtd->oobsize = 16;
 	mtd->owner = THIS_MODULE;
 	mtd->erase = doc_erase;
-	mtd->point = NULL;
-	mtd->unpoint = NULL;
 	mtd->read = doc_read;
 	mtd->write = doc_write;
 	mtd->read_oob = doc_read_oob;
 	mtd->write_oob = doc_write_oob;
-	mtd->sync = NULL;
-
-	this->totlen = 0;
-	this->numchips = 0;
 	this->curfloor = -1;
 	this->curchip = -1;
 
diff --git a/drivers/mtd/devices/docg3.c b/drivers/mtd/devices/docg3.c
index bdcf5df982e8..ad11ef0a81f4 100644
--- a/drivers/mtd/devices/docg3.c
+++ b/drivers/mtd/devices/docg3.c
@@ -29,6 +29,9 @@
 #include <linux/delay.h>
 #include <linux/mtd/mtd.h>
 #include <linux/mtd/partitions.h>
+#include <linux/bitmap.h>
+#include <linux/bitrev.h>
+#include <linux/bch.h>
 
 #include <linux/debugfs.h>
 #include <linux/seq_file.h>
@@ -41,11 +44,7 @@
  *
  * As no specification is available from M-Systems/Sandisk, this drivers lacks
  * several functions available on the chip, as :
- *  - block erase
- *  - page write
  *  - IPL write
- *  - ECC fixing (lack of BCH algorith understanding)
- *  - powerdown / powerup
  *
  * The bus data width (8bits versus 16bits) is not handled (if_cfg flag), and
  * the driver assumes a 16bits data bus.
@@ -53,8 +52,7 @@
  * DocG3 relies on 2 ECC algorithms, which are handled in hardware :
  *  - a 1 byte Hamming code stored in the OOB for each page
  *  - a 7 bytes BCH code stored in the OOB for each page
- * The BCH part is only used for check purpose, no correction is available as
- * some information is missing. What is known is that :
+ * The BCH ECC is :
  *  - BCH is in GF(2^14)
  *  - BCH is over data of 520 bytes (512 page + 7 page_info bytes
  *                                   + 1 hamming byte)
@@ -63,6 +61,30 @@
  *
  */
 
+static unsigned int reliable_mode;
+module_param(reliable_mode, uint, 0);
+MODULE_PARM_DESC(reliable_mode, "Set the docg3 mode (0=normal MLC, 1=fast, "
+		 "2=reliable) : MLC normal operations are in normal mode");
+
+/**
+ * struct docg3_oobinfo - DiskOnChip G3 OOB layout
+ * @eccbytes: 8 bytes are used (1 for Hamming ECC, 7 for BCH ECC)
+ * @eccpos: ecc positions (byte 7 is Hamming ECC, byte 8-14 are BCH ECC)
+ * @oobfree: free pageinfo bytes (byte 0 until byte 6, byte 15
+ * @oobavail: 8 available bytes remaining after ECC toll
+ */
+static struct nand_ecclayout docg3_oobinfo = {
+	.eccbytes = 8,
+	.eccpos = {7, 8, 9, 10, 11, 12, 13, 14},
+	.oobfree = {{0, 7}, {15, 1} },
+	.oobavail = 8,
+};
+
+/**
+ * struct docg3_bch - BCH engine
+ */
+static struct bch_control *docg3_bch;
+
 static inline u8 doc_readb(struct docg3 *docg3, u16 reg)
 {
 	u8 val = readb(docg3->base + reg);
@@ -82,7 +104,7 @@ static inline u16 doc_readw(struct docg3 *docg3, u16 reg)
 static inline void doc_writeb(struct docg3 *docg3, u8 val, u16 reg)
 {
 	writeb(val, docg3->base + reg);
-	trace_docg3_io(1, 16, reg, val);
+	trace_docg3_io(1, 8, reg, val);
 }
 
 static inline void doc_writew(struct docg3 *docg3, u16 val, u16 reg)
@@ -143,7 +165,7 @@ static void doc_delay(struct docg3 *docg3, int nbNOPs)
 {
 	int i;
 
-	doc_dbg("NOP x %d\n", nbNOPs);
+	doc_vdbg("NOP x %d\n", nbNOPs);
 	for (i = 0; i < nbNOPs; i++)
 		doc_writeb(docg3, 0, DOC_NOP);
 }
@@ -196,8 +218,8 @@ static int doc_reset_seq(struct docg3 *docg3)
 /**
  * doc_read_data_area - Read data from data area
  * @docg3: the device
- * @buf: the buffer to fill in
- * @len: the lenght to read
+ * @buf: the buffer to fill in (might be NULL is dummy reads)
+ * @len: the length to read
  * @first: first time read, DOC_READADDRESS should be set
  *
  * Reads bytes from flash data. Handles the single byte / even bytes reads.
@@ -218,8 +240,10 @@ static void doc_read_data_area(struct docg3 *docg3, void *buf, int len,
 	dst16 = buf;
 	for (i = 0; i < len4; i += 2) {
 		data16 = doc_readw(docg3, DOC_IOSPACE_DATA);
-		*dst16 = data16;
-		dst16++;
+		if (dst16) {
+			*dst16 = data16;
+			dst16++;
+		}
 	}
 
 	if (cdr) {
@@ -229,26 +253,84 @@ static void doc_read_data_area(struct docg3 *docg3, void *buf, int len,
 		dst8 = (u8 *)dst16;
 		for (i = 0; i < cdr; i++) {
 			data8 = doc_readb(docg3, DOC_IOSPACE_DATA);
-			*dst8 = data8;
-			dst8++;
+			if (dst8) {
+				*dst8 = data8;
+				dst8++;
+			}
 		}
 	}
 }
 
 /**
- * doc_set_data_mode - Sets the flash to reliable data mode
+ * doc_write_data_area - Write data into data area
+ * @docg3: the device
+ * @buf: the buffer to get input bytes from
+ * @len: the length to write
+ *
+ * Writes bytes into flash data. Handles the single byte / even bytes writes.
+ */
+static void doc_write_data_area(struct docg3 *docg3, const void *buf, int len)
+{
+	int i, cdr, len4;
+	u16 *src16;
+	u8 *src8;
+
+	doc_dbg("doc_write_data_area(buf=%p, len=%d)\n", buf, len);
+	cdr = len & 0x3;
+	len4 = len - cdr;
+
+	doc_writew(docg3, DOC_IOSPACE_DATA, DOC_READADDRESS);
+	src16 = (u16 *)buf;
+	for (i = 0; i < len4; i += 2) {
+		doc_writew(docg3, *src16, DOC_IOSPACE_DATA);
+		src16++;
+	}
+
+	src8 = (u8 *)src16;
+	for (i = 0; i < cdr; i++) {
+		doc_writew(docg3, DOC_IOSPACE_DATA | DOC_READADDR_ONE_BYTE,
+			   DOC_READADDRESS);
+		doc_writeb(docg3, *src8, DOC_IOSPACE_DATA);
+		src8++;
+	}
+}
+
+/**
+ * doc_set_data_mode - Sets the flash to normal or reliable data mode
  * @docg3: the device
  *
  * The reliable data mode is a bit slower than the fast mode, but less errors
  * occur.  Entering the reliable mode cannot be done without entering the fast
  * mode first.
+ *
+ * In reliable mode, pages 2*n and 2*n+1 are clones. Writing to page 0 of blocks
+ * (4,5) make the hardware write also to page 1 of blocks blocks(4,5). Reading
+ * from page 0 of blocks (4,5) or from page 1 of blocks (4,5) gives the same
+ * result, which is a logical and between bytes from page 0 and page 1 (which is
+ * consistent with the fact that writing to a page is _clearing_ bits of that
+ * page).
  */
 static void doc_set_reliable_mode(struct docg3 *docg3)
 {
-	doc_dbg("doc_set_reliable_mode()\n");
-	doc_flash_sequence(docg3, DOC_SEQ_SET_MODE);
-	doc_flash_command(docg3, DOC_CMD_FAST_MODE);
-	doc_flash_command(docg3, DOC_CMD_RELIABLE_MODE);
+	static char *strmode[] = { "normal", "fast", "reliable", "invalid" };
+
+	doc_dbg("doc_set_reliable_mode(%s)\n", strmode[docg3->reliable]);
+	switch (docg3->reliable) {
+	case 0:
+		break;
+	case 1:
+		doc_flash_sequence(docg3, DOC_SEQ_SET_FASTMODE);
+		doc_flash_command(docg3, DOC_CMD_FAST_MODE);
+		break;
+	case 2:
+		doc_flash_sequence(docg3, DOC_SEQ_SET_RELIABLEMODE);
+		doc_flash_command(docg3, DOC_CMD_FAST_MODE);
+		doc_flash_command(docg3, DOC_CMD_RELIABLE_MODE);
+		break;
+	default:
+		doc_err("doc_set_reliable_mode(): invalid mode\n");
+		break;
+	}
 	doc_delay(docg3, 2);
 }
 
@@ -325,6 +407,37 @@ static int doc_set_extra_page_mode(struct docg3 *docg3)
 }
 
 /**
+ * doc_setup_addr_sector - Setup blocks/page/ofs address for one plane
+ * @docg3: the device
+ * @sector: the sector
+ */
+static void doc_setup_addr_sector(struct docg3 *docg3, int sector)
+{
+	doc_delay(docg3, 1);
+	doc_flash_address(docg3, sector & 0xff);
+	doc_flash_address(docg3, (sector >> 8) & 0xff);
+	doc_flash_address(docg3, (sector >> 16) & 0xff);
+	doc_delay(docg3, 1);
+}
+
+/**
+ * doc_setup_writeaddr_sector - Setup blocks/page/ofs address for one plane
+ * @docg3: the device
+ * @sector: the sector
+ * @ofs: the offset in the page, between 0 and (512 + 16 + 512)
+ */
+static void doc_setup_writeaddr_sector(struct docg3 *docg3, int sector, int ofs)
+{
+	ofs = ofs >> 2;
+	doc_delay(docg3, 1);
+	doc_flash_address(docg3, ofs & 0xff);
+	doc_flash_address(docg3, sector & 0xff);
+	doc_flash_address(docg3, (sector >> 8) & 0xff);
+	doc_flash_address(docg3, (sector >> 16) & 0xff);
+	doc_delay(docg3, 1);
+}
+
+/**
  * doc_seek - Set both flash planes to the specified block, page for reading
  * @docg3: the device
  * @block0: the first plane block index
@@ -360,34 +473,80 @@ static int doc_read_seek(struct docg3 *docg3, int block0, int block1, int page,
 	if (ret)
 		goto out;
 
-	sector = (block0 << DOC_ADDR_BLOCK_SHIFT) + (page & DOC_ADDR_PAGE_MASK);
 	doc_flash_sequence(docg3, DOC_SEQ_READ);
+	sector = (block0 << DOC_ADDR_BLOCK_SHIFT) + (page & DOC_ADDR_PAGE_MASK);
 	doc_flash_command(docg3, DOC_CMD_PROG_BLOCK_ADDR);
-	doc_delay(docg3, 1);
-	doc_flash_address(docg3, sector & 0xff);
-	doc_flash_address(docg3, (sector >> 8) & 0xff);
-	doc_flash_address(docg3, (sector >> 16) & 0xff);
-	doc_delay(docg3, 1);
+	doc_setup_addr_sector(docg3, sector);
 
 	sector = (block1 << DOC_ADDR_BLOCK_SHIFT) + (page & DOC_ADDR_PAGE_MASK);
 	doc_flash_command(docg3, DOC_CMD_PROG_BLOCK_ADDR);
+	doc_setup_addr_sector(docg3, sector);
 	doc_delay(docg3, 1);
-	doc_flash_address(docg3, sector & 0xff);
-	doc_flash_address(docg3, (sector >> 8) & 0xff);
-	doc_flash_address(docg3, (sector >> 16) & 0xff);
+
+out:
+	return ret;
+}
+
+/**
+ * doc_write_seek - Set both flash planes to the specified block, page for writing
+ * @docg3: the device
+ * @block0: the first plane block index
+ * @block1: the second plane block index
+ * @page: the page index within the block
+ * @ofs: offset in page to write
+ *
+ * Programs the flash even and odd planes to the specific block and page.
+ * Alternatively, programs the flash to the wear area of the specified page.
+ */
+static int doc_write_seek(struct docg3 *docg3, int block0, int block1, int page,
+			 int ofs)
+{
+	int ret = 0, sector;
+
+	doc_dbg("doc_write_seek(blocks=(%d,%d), page=%d, ofs=%d)\n",
+		block0, block1, page, ofs);
+
+	doc_set_reliable_mode(docg3);
+
+	if (ofs < 2 * DOC_LAYOUT_PAGE_SIZE) {
+		doc_flash_sequence(docg3, DOC_SEQ_SET_PLANE1);
+		doc_flash_command(docg3, DOC_CMD_READ_PLANE1);
+		doc_delay(docg3, 2);
+	} else {
+		doc_flash_sequence(docg3, DOC_SEQ_SET_PLANE2);
+		doc_flash_command(docg3, DOC_CMD_READ_PLANE2);
+		doc_delay(docg3, 2);
+	}
+
+	doc_flash_sequence(docg3, DOC_SEQ_PAGE_SETUP);
+	doc_flash_command(docg3, DOC_CMD_PROG_CYCLE1);
+
+	sector = (block0 << DOC_ADDR_BLOCK_SHIFT) + (page & DOC_ADDR_PAGE_MASK);
+	doc_setup_writeaddr_sector(docg3, sector, ofs);
+
+	doc_flash_command(docg3, DOC_CMD_PROG_CYCLE3);
 	doc_delay(docg3, 2);
+	ret = doc_wait_ready(docg3);
+	if (ret)
+		goto out;
+
+	doc_flash_command(docg3, DOC_CMD_PROG_CYCLE1);
+	sector = (block1 << DOC_ADDR_BLOCK_SHIFT) + (page & DOC_ADDR_PAGE_MASK);
+	doc_setup_writeaddr_sector(docg3, sector, ofs);
+	doc_delay(docg3, 1);
 
 out:
 	return ret;
 }
 
+
 /**
  * doc_read_page_ecc_init - Initialize hardware ECC engine
  * @docg3: the device
  * @len: the number of bytes covered by the ECC (BCH covered)
  *
  * The function does initialize the hardware ECC engine to compute the Hamming
- * ECC (on 1 byte) and the BCH Syndroms (on 7 bytes).
+ * ECC (on 1 byte) and the BCH hardware ECC (on 7 bytes).
  *
  * Return 0 if succeeded, -EIO on error
  */
@@ -403,6 +562,106 @@ static int doc_read_page_ecc_init(struct docg3 *docg3, int len)
 }
 
 /**
+ * doc_write_page_ecc_init - Initialize hardware BCH ECC engine
+ * @docg3: the device
+ * @len: the number of bytes covered by the ECC (BCH covered)
+ *
+ * The function does initialize the hardware ECC engine to compute the Hamming
+ * ECC (on 1 byte) and the BCH hardware ECC (on 7 bytes).
+ *
+ * Return 0 if succeeded, -EIO on error
+ */
+static int doc_write_page_ecc_init(struct docg3 *docg3, int len)
+{
+	doc_writew(docg3, DOC_ECCCONF0_WRITE_MODE
+		   | DOC_ECCCONF0_BCH_ENABLE | DOC_ECCCONF0_HAMMING_ENABLE
+		   | (len & DOC_ECCCONF0_DATA_BYTES_MASK),
+		   DOC_ECCCONF0);
+	doc_delay(docg3, 4);
+	doc_register_readb(docg3, DOC_FLASHCONTROL);
+	return doc_wait_ready(docg3);
+}
+
+/**
+ * doc_ecc_disable - Disable Hamming and BCH ECC hardware calculator
+ * @docg3: the device
+ *
+ * Disables the hardware ECC generator and checker, for unchecked reads (as when
+ * reading OOB only or write status byte).
+ */
+static void doc_ecc_disable(struct docg3 *docg3)
+{
+	doc_writew(docg3, DOC_ECCCONF0_READ_MODE, DOC_ECCCONF0);
+	doc_delay(docg3, 4);
+}
+
+/**
+ * doc_hamming_ecc_init - Initialize hardware Hamming ECC engine
+ * @docg3: the device
+ * @nb_bytes: the number of bytes covered by the ECC (Hamming covered)
+ *
+ * This function programs the ECC hardware to compute the hamming code on the
+ * last provided N bytes to the hardware generator.
+ */
+static void doc_hamming_ecc_init(struct docg3 *docg3, int nb_bytes)
+{
+	u8 ecc_conf1;
+
+	ecc_conf1 = doc_register_readb(docg3, DOC_ECCCONF1);
+	ecc_conf1 &= ~DOC_ECCCONF1_HAMMING_BITS_MASK;
+	ecc_conf1 |= (nb_bytes & DOC_ECCCONF1_HAMMING_BITS_MASK);
+	doc_writeb(docg3, ecc_conf1, DOC_ECCCONF1);
+}
+
+/**
+ * doc_ecc_bch_fix_data - Fix if need be read data from flash
+ * @docg3: the device
+ * @buf: the buffer of read data (512 + 7 + 1 bytes)
+ * @hwecc: the hardware calculated ECC.
+ *         It's in fact recv_ecc ^ calc_ecc, where recv_ecc was read from OOB
+ *         area data, and calc_ecc the ECC calculated by the hardware generator.
+ *
+ * Checks if the received data matches the ECC, and if an error is detected,
+ * tries to fix the bit flips (at most 4) in the buffer buf.  As the docg3
+ * understands the (data, ecc, syndroms) in an inverted order in comparison to
+ * the BCH library, the function reverses the order of bits (ie. bit7 and bit0,
+ * bit6 and bit 1, ...) for all ECC data.
+ *
+ * The hardware ecc unit produces oob_ecc ^ calc_ecc.  The kernel's bch
+ * algorithm is used to decode this.  However the hw operates on page
+ * data in a bit order that is the reverse of that of the bch alg,
+ * requiring that the bits be reversed on the result.  Thanks to Ivan
+ * Djelic for his analysis.
+ *
+ * Returns number of fixed bits (0, 1, 2, 3, 4) or -EBADMSG if too many bit
+ * errors were detected and cannot be fixed.
+ */
+static int doc_ecc_bch_fix_data(struct docg3 *docg3, void *buf, u8 *hwecc)
+{
+	u8 ecc[DOC_ECC_BCH_SIZE];
+	int errorpos[DOC_ECC_BCH_T], i, numerrs;
+
+	for (i = 0; i < DOC_ECC_BCH_SIZE; i++)
+		ecc[i] = bitrev8(hwecc[i]);
+	numerrs = decode_bch(docg3_bch, NULL, DOC_ECC_BCH_COVERED_BYTES,
+			     NULL, ecc, NULL, errorpos);
+	BUG_ON(numerrs == -EINVAL);
+	if (numerrs < 0)
+		goto out;
+
+	for (i = 0; i < numerrs; i++)
+		errorpos[i] = (errorpos[i] & ~7) | (7 - (errorpos[i] & 7));
+	for (i = 0; i < numerrs; i++)
+		if (errorpos[i] < DOC_ECC_BCH_COVERED_BYTES*8)
+			/* error is located in data, correct it */
+			change_bit(errorpos[i], buf);
+out:
+	doc_dbg("doc_ecc_bch_fix_data: flipped %d bits\n", numerrs);
+	return numerrs;
+}
+
+
+/**
  * doc_read_page_prepare - Prepares reading data from a flash page
  * @docg3: the device
  * @block0: the first plane block index on flash memory
@@ -488,16 +747,40 @@ static int doc_read_page_getbytes(struct docg3 *docg3, int len, u_char *buf,
 }
 
 /**
- * doc_get_hw_bch_syndroms - Get hardware calculated BCH syndroms
+ * doc_write_page_putbytes - Writes bytes into a prepared page
+ * @docg3: the device
+ * @len: the number of bytes to be written
+ * @buf: the buffer of input bytes
+ *
+ */
+static void doc_write_page_putbytes(struct docg3 *docg3, int len,
+				    const u_char *buf)
+{
+	doc_write_data_area(docg3, buf, len);
+	doc_delay(docg3, 2);
+}
+
+/**
+ * doc_get_bch_hw_ecc - Get hardware calculated BCH ECC
  * @docg3: the device
- * @syns:  the array of 7 integers where the syndroms will be stored
+ * @hwecc:  the array of 7 integers where the hardware ecc will be stored
  */
-static void doc_get_hw_bch_syndroms(struct docg3 *docg3, int *syns)
+static void doc_get_bch_hw_ecc(struct docg3 *docg3, u8 *hwecc)
 {
 	int i;
 
 	for (i = 0; i < DOC_ECC_BCH_SIZE; i++)
-		syns[i] = doc_register_readb(docg3, DOC_BCH_SYNDROM(i));
+		hwecc[i] = doc_register_readb(docg3, DOC_BCH_HW_ECC(i));
+}
+
+/**
+ * doc_page_finish - Ends reading/writing of a flash page
+ * @docg3: the device
+ */
+static void doc_page_finish(struct docg3 *docg3)
+{
+	doc_writeb(docg3, 0, DOC_DATAEND);
+	doc_delay(docg3, 2);
 }
 
 /**
@@ -510,8 +793,7 @@ static void doc_get_hw_bch_syndroms(struct docg3 *docg3, int *syns)
  */
 static void doc_read_page_finish(struct docg3 *docg3)
 {
-	doc_writeb(docg3, 0, DOC_DATAEND);
-	doc_delay(docg3, 2);
+	doc_page_finish(docg3);
 	doc_set_device_id(docg3, 0);
 }
 
@@ -523,18 +805,29 @@ static void doc_read_page_finish(struct docg3 *docg3)
  * @block1: second plane block index calculated
  * @page: page calculated
  * @ofs: offset in page
+ * @reliable: 0 if docg3 in normal mode, 1 if docg3 in fast mode, 2 if docg3 in
+ * reliable mode.
+ *
+ * The calculation is based on the reliable/normal mode. In normal mode, the 64
+ * pages of a block are available. In reliable mode, as pages 2*n and 2*n+1 are
+ * clones, only 32 pages per block are available.
  */
 static void calc_block_sector(loff_t from, int *block0, int *block1, int *page,
-			      int *ofs)
+			      int *ofs, int reliable)
 {
-	uint sector;
+	uint sector, pages_biblock;
+
+	pages_biblock = DOC_LAYOUT_PAGES_PER_BLOCK * DOC_LAYOUT_NBPLANES;
+	if (reliable == 1 || reliable == 2)
+		pages_biblock /= 2;
 
 	sector = from / DOC_LAYOUT_PAGE_SIZE;
-	*block0 = sector / (DOC_LAYOUT_PAGES_PER_BLOCK * DOC_LAYOUT_NBPLANES)
-		* DOC_LAYOUT_NBPLANES;
+	*block0 = sector / pages_biblock * DOC_LAYOUT_NBPLANES;
 	*block1 = *block0 + 1;
-	*page = sector % (DOC_LAYOUT_PAGES_PER_BLOCK * DOC_LAYOUT_NBPLANES);
+	*page = sector % pages_biblock;
 	*page /= DOC_LAYOUT_NBPLANES;
+	if (reliable == 1 || reliable == 2)
+		*page *= 2;
 	if (sector % 2)
 		*ofs = DOC_LAYOUT_PAGE_OOB_SIZE;
 	else
@@ -542,99 +835,124 @@ static void calc_block_sector(loff_t from, int *block0, int *block1, int *page,
 }
 
 /**
- * doc_read - Read bytes from flash
+ * doc_read_oob - Read out of band bytes from flash
  * @mtd: the device
  * @from: the offset from first block and first page, in bytes, aligned on page
  *        size
- * @len: the number of bytes to read (must be a multiple of 4)
- * @retlen: the number of bytes actually read
- * @buf: the filled in buffer
+ * @ops: the mtd oob structure
  *
- * Reads flash memory pages. This function does not read the OOB chunk, but only
- * the page data.
+ * Reads flash memory OOB area of pages.
  *
  * Returns 0 if read successfull, of -EIO, -EINVAL if an error occured
  */
-static int doc_read(struct mtd_info *mtd, loff_t from, size_t len,
-	     size_t *retlen, u_char *buf)
+static int doc_read_oob(struct mtd_info *mtd, loff_t from,
+			struct mtd_oob_ops *ops)
 {
 	struct docg3 *docg3 = mtd->priv;
-	int block0, block1, page, readlen, ret, ofs = 0;
-	int syn[DOC_ECC_BCH_SIZE], eccconf1;
-	u8 oob[DOC_LAYOUT_OOB_SIZE];
+	int block0, block1, page, ret, ofs = 0;
+	u8 *oobbuf = ops->oobbuf;
+	u8 *buf = ops->datbuf;
+	size_t len, ooblen, nbdata, nboob;
+	u8 hwecc[DOC_ECC_BCH_SIZE], eccconf1;
+
+	if (buf)
+		len = ops->len;
+	else
+		len = 0;
+	if (oobbuf)
+		ooblen = ops->ooblen;
+	else
+		ooblen = 0;
+
+	if (oobbuf && ops->mode == MTD_OPS_PLACE_OOB)
+		oobbuf += ops->ooboffs;
+
+	doc_dbg("doc_read_oob(from=%lld, mode=%d, data=(%p:%zu), oob=(%p:%zu))\n",
+		from, ops->mode, buf, len, oobbuf, ooblen);
+	if ((len % DOC_LAYOUT_PAGE_SIZE) || (ooblen % DOC_LAYOUT_OOB_SIZE) ||
+	    (from % DOC_LAYOUT_PAGE_SIZE))
+		return -EINVAL;
 
 	ret = -EINVAL;
-	doc_dbg("doc_read(from=%lld, len=%zu, buf=%p)\n", from, len, buf);
-	if (from % DOC_LAYOUT_PAGE_SIZE)
-		goto err;
-	if (len % 4)
-		goto err;
-	calc_block_sector(from, &block0, &block1, &page, &ofs);
+	calc_block_sector(from + len, &block0, &block1, &page, &ofs,
+			  docg3->reliable);
 	if (block1 > docg3->max_block)
 		goto err;
 
-	*retlen = 0;
+	ops->oobretlen = 0;
+	ops->retlen = 0;
 	ret = 0;
-	readlen = min_t(size_t, len, (size_t)DOC_LAYOUT_PAGE_SIZE);
-	while (!ret && len > 0) {
-		readlen = min_t(size_t, len, (size_t)DOC_LAYOUT_PAGE_SIZE);
+	while (!ret && (len > 0 || ooblen > 0)) {
+		calc_block_sector(from, &block0, &block1, &page, &ofs,
+			docg3->reliable);
+		nbdata = min_t(size_t, len, (size_t)DOC_LAYOUT_PAGE_SIZE);
+		nboob = min_t(size_t, ooblen, (size_t)DOC_LAYOUT_OOB_SIZE);
 		ret = doc_read_page_prepare(docg3, block0, block1, page, ofs);
 		if (ret < 0)
 			goto err;
-		ret = doc_read_page_ecc_init(docg3, DOC_ECC_BCH_COVERED_BYTES);
+		ret = doc_read_page_ecc_init(docg3, DOC_ECC_BCH_TOTAL_BYTES);
 		if (ret < 0)
 			goto err_in_read;
-		ret = doc_read_page_getbytes(docg3, readlen, buf, 1);
-		if (ret < readlen)
+		ret = doc_read_page_getbytes(docg3, nbdata, buf, 1);
+		if (ret < nbdata)
 			goto err_in_read;
-		ret = doc_read_page_getbytes(docg3, DOC_LAYOUT_OOB_SIZE,
-					     oob, 0);
-		if (ret < DOC_LAYOUT_OOB_SIZE)
+		doc_read_page_getbytes(docg3, DOC_LAYOUT_PAGE_SIZE - nbdata,
+				       NULL, 0);
+		ret = doc_read_page_getbytes(docg3, nboob, oobbuf, 0);
+		if (ret < nboob)
 			goto err_in_read;
+		doc_read_page_getbytes(docg3, DOC_LAYOUT_OOB_SIZE - nboob,
+				       NULL, 0);
 
-		*retlen += readlen;
-		buf += readlen;
-		len -= readlen;
-
-		ofs ^= DOC_LAYOUT_PAGE_OOB_SIZE;
-		if (ofs == 0)
-			page += 2;
-		if (page > DOC_ADDR_PAGE_MASK) {
-			page = 0;
-			block0 += 2;
-			block1 += 2;
-		}
-
-		/*
-		 * There should be a BCH bitstream fixing algorithm here ...
-		 * By now, a page read failure is triggered by BCH error
-		 */
-		doc_get_hw_bch_syndroms(docg3, syn);
+		doc_get_bch_hw_ecc(docg3, hwecc);
 		eccconf1 = doc_register_readb(docg3, DOC_ECCCONF1);
 
-		doc_dbg("OOB - INFO: %02x:%02x:%02x:%02x:%02x:%02x:%02x\n",
-			 oob[0], oob[1], oob[2], oob[3], oob[4],
-			 oob[5], oob[6]);
-		doc_dbg("OOB - HAMMING: %02x\n", oob[7]);
-		doc_dbg("OOB - BCH_ECC: %02x:%02x:%02x:%02x:%02x:%02x:%02x\n",
-			 oob[8], oob[9], oob[10], oob[11], oob[12],
-			 oob[13], oob[14]);
-		doc_dbg("OOB - UNUSED: %02x\n", oob[15]);
+		if (nboob >= DOC_LAYOUT_OOB_SIZE) {
+			doc_dbg("OOB - INFO: %02x:%02x:%02x:%02x:%02x:%02x:%02x\n",
+				oobbuf[0], oobbuf[1], oobbuf[2], oobbuf[3],
+				oobbuf[4], oobbuf[5], oobbuf[6]);
+			doc_dbg("OOB - HAMMING: %02x\n", oobbuf[7]);
+			doc_dbg("OOB - BCH_ECC: %02x:%02x:%02x:%02x:%02x:%02x:%02x\n",
+				oobbuf[8], oobbuf[9], oobbuf[10], oobbuf[11],
+				oobbuf[12], oobbuf[13], oobbuf[14]);
+			doc_dbg("OOB - UNUSED: %02x\n", oobbuf[15]);
+		}
 		doc_dbg("ECC checks: ECCConf1=%x\n", eccconf1);
-		doc_dbg("ECC BCH syndrom: %02x:%02x:%02x:%02x:%02x:%02x:%02x\n",
-			syn[0], syn[1], syn[2], syn[3], syn[4], syn[5], syn[6]);
-
-		ret = -EBADMSG;
-		if (block0 >= DOC_LAYOUT_BLOCK_FIRST_DATA) {
-			if (eccconf1 & DOC_ECCCONF1_BCH_SYNDROM_ERR)
-				goto err_in_read;
-			if (is_prot_seq_error(docg3))
-				goto err_in_read;
+		doc_dbg("ECC HW_ECC: %02x:%02x:%02x:%02x:%02x:%02x:%02x\n",
+			hwecc[0], hwecc[1], hwecc[2], hwecc[3], hwecc[4],
+			hwecc[5], hwecc[6]);
+
+		ret = -EIO;
+		if (is_prot_seq_error(docg3))
+			goto err_in_read;
+		ret = 0;
+		if ((block0 >= DOC_LAYOUT_BLOCK_FIRST_DATA) &&
+		    (eccconf1 & DOC_ECCCONF1_BCH_SYNDROM_ERR) &&
+		    (eccconf1 & DOC_ECCCONF1_PAGE_IS_WRITTEN) &&
+		    (ops->mode != MTD_OPS_RAW) &&
+		    (nbdata == DOC_LAYOUT_PAGE_SIZE)) {
+			ret = doc_ecc_bch_fix_data(docg3, buf, hwecc);
+			if (ret < 0) {
+				mtd->ecc_stats.failed++;
+				ret = -EBADMSG;
+			}
+			if (ret > 0) {
+				mtd->ecc_stats.corrected += ret;
+				ret = -EUCLEAN;
+			}
 		}
+
 		doc_read_page_finish(docg3);
+		ops->retlen += nbdata;
+		ops->oobretlen += nboob;
+		buf += nbdata;
+		oobbuf += nboob;
+		len -= nbdata;
+		ooblen -= nboob;
+		from += DOC_LAYOUT_PAGE_SIZE;
 	}
 
-	return 0;
+	return ret;
 err_in_read:
 	doc_read_page_finish(docg3);
 err:
@@ -642,54 +960,33 @@ err:
 }
 
 /**
- * doc_read_oob - Read out of band bytes from flash
+ * doc_read - Read bytes from flash
  * @mtd: the device
  * @from: the offset from first block and first page, in bytes, aligned on page
  *        size
- * @ops: the mtd oob structure
+ * @len: the number of bytes to read (must be a multiple of 4)
+ * @retlen: the number of bytes actually read
+ * @buf: the filled in buffer
  *
- * Reads flash memory OOB area of pages.
+ * Reads flash memory pages. This function does not read the OOB chunk, but only
+ * the page data.
  *
  * Returns 0 if read successfull, of -EIO, -EINVAL if an error occured
  */
-static int doc_read_oob(struct mtd_info *mtd, loff_t from,
-			struct mtd_oob_ops *ops)
+static int doc_read(struct mtd_info *mtd, loff_t from, size_t len,
+	     size_t *retlen, u_char *buf)
 {
-	struct docg3 *docg3 = mtd->priv;
-	int block0, block1, page, ofs, ret;
-	u8 *buf = ops->oobbuf;
-	size_t len = ops->ooblen;
-
-	doc_dbg("doc_read_oob(from=%lld, buf=%p, len=%zu)\n", from, buf, len);
-	if (len != DOC_LAYOUT_OOB_SIZE)
-		return -EINVAL;
-
-	switch (ops->mode) {
-	case MTD_OPS_PLACE_OOB:
-		buf += ops->ooboffs;
-		break;
-	default:
-		break;
-	}
+	struct mtd_oob_ops ops;
+	size_t ret;
 
-	calc_block_sector(from, &block0, &block1, &page, &ofs);
-	if (block1 > docg3->max_block)
-		return -EINVAL;
-
-	ret = doc_read_page_prepare(docg3, block0, block1, page,
-				    ofs + DOC_LAYOUT_PAGE_SIZE);
-	if (!ret)
-		ret = doc_read_page_ecc_init(docg3, DOC_LAYOUT_OOB_SIZE);
-	if (!ret)
-		ret = doc_read_page_getbytes(docg3, DOC_LAYOUT_OOB_SIZE,
-					     buf, 1);
-	doc_read_page_finish(docg3);
+	memset(&ops, 0, sizeof(ops));
+	ops.datbuf = buf;
+	ops.len = len;
+	ops.mode = MTD_OPS_AUTO_OOB;
 
-	if (ret > 0)
-		ops->oobretlen = ret;
-	else
-		ops->oobretlen = 0;
-	return (ret > 0) ? 0 : ret;
+	ret = doc_read_oob(mtd, from, &ops);
+	*retlen = ops.retlen;
+	return ret;
 }
 
 static int doc_reload_bbt(struct docg3 *docg3)
@@ -726,7 +1023,8 @@ static int doc_block_isbad(struct mtd_info *mtd, loff_t from)
 	struct docg3 *docg3 = mtd->priv;
 	int block0, block1, page, ofs, is_good;
 
-	calc_block_sector(from, &block0, &block1, &page, &ofs);
+	calc_block_sector(from, &block0, &block1, &page, &ofs,
+		docg3->reliable);
 	doc_dbg("doc_block_isbad(from=%lld) => block=(%d,%d), page=%d, ofs=%d\n",
 		from, block0, block1, page, ofs);
 
@@ -739,6 +1037,7 @@ static int doc_block_isbad(struct mtd_info *mtd, loff_t from)
 	return !is_good;
 }
 
+#if 0
 /**
  * doc_get_erase_count - Get block erase count
  * @docg3: the device
@@ -758,7 +1057,7 @@ static int doc_get_erase_count(struct docg3 *docg3, loff_t from)
 	doc_dbg("doc_get_erase_count(from=%lld, buf=%p)\n", from, buf);
 	if (from % DOC_LAYOUT_PAGE_SIZE)
 		return -EINVAL;
-	calc_block_sector(from, &block0, &block1, &page, &ofs);
+	calc_block_sector(from, &block0, &block1, &page, &ofs, docg3->reliable);
 	if (block1 > docg3->max_block)
 		return -EINVAL;
 
@@ -780,6 +1079,558 @@ static int doc_get_erase_count(struct docg3 *docg3, loff_t from)
 
 	return max(plane1_erase_count, plane2_erase_count);
 }
+#endif
+
+/**
+ * doc_get_op_status - get erase/write operation status
+ * @docg3: the device
+ *
+ * Queries the status from the chip, and returns it
+ *
+ * Returns the status (bits DOC_PLANES_STATUS_*)
+ */
+static int doc_get_op_status(struct docg3 *docg3)
+{
+	u8 status;
+
+	doc_flash_sequence(docg3, DOC_SEQ_PLANES_STATUS);
+	doc_flash_command(docg3, DOC_CMD_PLANES_STATUS);
+	doc_delay(docg3, 5);
+
+	doc_ecc_disable(docg3);
+	doc_read_data_area(docg3, &status, 1, 1);
+	return status;
+}
+
+/**
+ * doc_write_erase_wait_status - wait for write or erase completion
+ * @docg3: the device
+ *
+ * Wait for the chip to be ready again after erase or write operation, and check
+ * erase/write status.
+ *
+ * Returns 0 if erase successfull, -EIO if erase/write issue, -ETIMEOUT if
+ * timeout
+ */
+static int doc_write_erase_wait_status(struct docg3 *docg3)
+{
+	int status, ret = 0;
+
+	if (!doc_is_ready(docg3))
+		usleep_range(3000, 3000);
+	if (!doc_is_ready(docg3)) {
+		doc_dbg("Timeout reached and the chip is still not ready\n");
+		ret = -EAGAIN;
+		goto out;
+	}
+
+	status = doc_get_op_status(docg3);
+	if (status & DOC_PLANES_STATUS_FAIL) {
+		doc_dbg("Erase/Write failed on (a) plane(s), status = %x\n",
+			status);
+		ret = -EIO;
+	}
+
+out:
+	doc_page_finish(docg3);
+	return ret;
+}
+
+/**
+ * doc_erase_block - Erase a couple of blocks
+ * @docg3: the device
+ * @block0: the first block to erase (leftmost plane)
+ * @block1: the second block to erase (rightmost plane)
+ *
+ * Erase both blocks, and return operation status
+ *
+ * Returns 0 if erase successful, -EIO if erase issue, -ETIMEOUT if chip not
+ * ready for too long
+ */
+static int doc_erase_block(struct docg3 *docg3, int block0, int block1)
+{
+	int ret, sector;
+
+	doc_dbg("doc_erase_block(blocks=(%d,%d))\n", block0, block1);
+	ret = doc_reset_seq(docg3);
+	if (ret)
+		return -EIO;
+
+	doc_set_reliable_mode(docg3);
+	doc_flash_sequence(docg3, DOC_SEQ_ERASE);
+
+	sector = block0 << DOC_ADDR_BLOCK_SHIFT;
+	doc_flash_command(docg3, DOC_CMD_PROG_BLOCK_ADDR);
+	doc_setup_addr_sector(docg3, sector);
+	sector = block1 << DOC_ADDR_BLOCK_SHIFT;
+	doc_flash_command(docg3, DOC_CMD_PROG_BLOCK_ADDR);
+	doc_setup_addr_sector(docg3, sector);
+	doc_delay(docg3, 1);
+
+	doc_flash_command(docg3, DOC_CMD_ERASECYCLE2);
+	doc_delay(docg3, 2);
+
+	if (is_prot_seq_error(docg3)) {
+		doc_err("Erase blocks %d,%d error\n", block0, block1);
+		return -EIO;
+	}
+
+	return doc_write_erase_wait_status(docg3);
+}
+
+/**
+ * doc_erase - Erase a portion of the chip
+ * @mtd: the device
+ * @info: the erase info
+ *
+ * Erase a bunch of contiguous blocks, by pairs, as a "mtd" page of 1024 is
+ * split into 2 pages of 512 bytes on 2 contiguous blocks.
+ *
+ * Returns 0 if erase successful, -EINVAL if adressing error, -EIO if erase
+ * issue
+ */
+static int doc_erase(struct mtd_info *mtd, struct erase_info *info)
+{
+	struct docg3 *docg3 = mtd->priv;
+	uint64_t len;
+	int block0, block1, page, ret, ofs = 0;
+
+	doc_dbg("doc_erase(from=%lld, len=%lld\n", info->addr, info->len);
+	doc_set_device_id(docg3, docg3->device_id);
+
+	info->state = MTD_ERASE_PENDING;
+	calc_block_sector(info->addr + info->len, &block0, &block1, &page,
+			  &ofs, docg3->reliable);
+	ret = -EINVAL;
+	if (block1 > docg3->max_block || page || ofs)
+		goto reset_err;
+
+	ret = 0;
+	calc_block_sector(info->addr, &block0, &block1, &page, &ofs,
+			  docg3->reliable);
+	doc_set_reliable_mode(docg3);
+	for (len = info->len; !ret && len > 0; len -= mtd->erasesize) {
+		info->state = MTD_ERASING;
+		ret = doc_erase_block(docg3, block0, block1);
+		block0 += 2;
+		block1 += 2;
+	}
+
+	if (ret)
+		goto reset_err;
+
+	info->state = MTD_ERASE_DONE;
+	return 0;
+
+reset_err:
+	info->state = MTD_ERASE_FAILED;
+	return ret;
+}
+
+/**
+ * doc_write_page - Write a single page to the chip
+ * @docg3: the device
+ * @to: the offset from first block and first page, in bytes, aligned on page
+ *      size
+ * @buf: buffer to get bytes from
+ * @oob: buffer to get out of band bytes from (can be NULL if no OOB should be
+ *       written)
+ * @autoecc: if 0, all 16 bytes from OOB are taken, regardless of HW Hamming or
+ *           BCH computations. If 1, only bytes 0-7 and byte 15 are taken,
+ *           remaining ones are filled with hardware Hamming and BCH
+ *           computations. Its value is not meaningfull is oob == NULL.
+ *
+ * Write one full page (ie. 1 page split on two planes), of 512 bytes, with the
+ * OOB data. The OOB ECC is automatically computed by the hardware Hamming and
+ * BCH generator if autoecc is not null.
+ *
+ * Returns 0 if write successful, -EIO if write error, -EAGAIN if timeout
+ */
+static int doc_write_page(struct docg3 *docg3, loff_t to, const u_char *buf,
+			  const u_char *oob, int autoecc)
+{
+	int block0, block1, page, ret, ofs = 0;
+	u8 hwecc[DOC_ECC_BCH_SIZE], hamming;
+
+	doc_dbg("doc_write_page(to=%lld)\n", to);
+	calc_block_sector(to, &block0, &block1, &page, &ofs, docg3->reliable);
+
+	doc_set_device_id(docg3, docg3->device_id);
+	ret = doc_reset_seq(docg3);
+	if (ret)
+		goto err;
+
+	/* Program the flash address block and page */
+	ret = doc_write_seek(docg3, block0, block1, page, ofs);
+	if (ret)
+		goto err;
+
+	doc_write_page_ecc_init(docg3, DOC_ECC_BCH_TOTAL_BYTES);
+	doc_delay(docg3, 2);
+	doc_write_page_putbytes(docg3, DOC_LAYOUT_PAGE_SIZE, buf);
+
+	if (oob && autoecc) {
+		doc_write_page_putbytes(docg3, DOC_LAYOUT_OOB_PAGEINFO_SZ, oob);
+		doc_delay(docg3, 2);
+		oob += DOC_LAYOUT_OOB_UNUSED_OFS;
+
+		hamming = doc_register_readb(docg3, DOC_HAMMINGPARITY);
+		doc_delay(docg3, 2);
+		doc_write_page_putbytes(docg3, DOC_LAYOUT_OOB_HAMMING_SZ,
+					&hamming);
+		doc_delay(docg3, 2);
+
+		doc_get_bch_hw_ecc(docg3, hwecc);
+		doc_write_page_putbytes(docg3, DOC_LAYOUT_OOB_BCH_SZ, hwecc);
+		doc_delay(docg3, 2);
+
+		doc_write_page_putbytes(docg3, DOC_LAYOUT_OOB_UNUSED_SZ, oob);
+	}
+	if (oob && !autoecc)
+		doc_write_page_putbytes(docg3, DOC_LAYOUT_OOB_SIZE, oob);
+
+	doc_delay(docg3, 2);
+	doc_page_finish(docg3);
+	doc_delay(docg3, 2);
+	doc_flash_command(docg3, DOC_CMD_PROG_CYCLE2);
+	doc_delay(docg3, 2);
+
+	/*
+	 * The wait status will perform another doc_page_finish() call, but that
+	 * seems to please the docg3, so leave it.
+	 */
+	ret = doc_write_erase_wait_status(docg3);
+	return ret;
+err:
+	doc_read_page_finish(docg3);
+	return ret;
+}
+
+/**
+ * doc_guess_autoecc - Guess autoecc mode from mbd_oob_ops
+ * @ops: the oob operations
+ *
+ * Returns 0 or 1 if success, -EINVAL if invalid oob mode
+ */
+static int doc_guess_autoecc(struct mtd_oob_ops *ops)
+{
+	int autoecc;
+
+	switch (ops->mode) {
+	case MTD_OPS_PLACE_OOB:
+	case MTD_OPS_AUTO_OOB:
+		autoecc = 1;
+		break;
+	case MTD_OPS_RAW:
+		autoecc = 0;
+		break;
+	default:
+		autoecc = -EINVAL;
+	}
+	return autoecc;
+}
+
+/**
+ * doc_fill_autooob - Fill a 16 bytes OOB from 8 non-ECC bytes
+ * @dst: the target 16 bytes OOB buffer
+ * @oobsrc: the source 8 bytes non-ECC OOB buffer
+ *
+ */
+static void doc_fill_autooob(u8 *dst, u8 *oobsrc)
+{
+	memcpy(dst, oobsrc, DOC_LAYOUT_OOB_PAGEINFO_SZ);
+	dst[DOC_LAYOUT_OOB_UNUSED_OFS] = oobsrc[DOC_LAYOUT_OOB_PAGEINFO_SZ];
+}
+
+/**
+ * doc_backup_oob - Backup OOB into docg3 structure
+ * @docg3: the device
+ * @to: the page offset in the chip
+ * @ops: the OOB size and buffer
+ *
+ * As the docg3 should write a page with its OOB in one pass, and some userland
+ * applications do write_oob() to setup the OOB and then write(), store the OOB
+ * into a temporary storage. This is very dangerous, as 2 concurrent
+ * applications could store an OOB, and then write their pages (which will
+ * result into one having its OOB corrupted).
+ *
+ * The only reliable way would be for userland to call doc_write_oob() with both
+ * the page data _and_ the OOB area.
+ *
+ * Returns 0 if success, -EINVAL if ops content invalid
+ */
+static int doc_backup_oob(struct docg3 *docg3, loff_t to,
+			  struct mtd_oob_ops *ops)
+{
+	int ooblen = ops->ooblen, autoecc;
+
+	if (ooblen != DOC_LAYOUT_OOB_SIZE)
+		return -EINVAL;
+	autoecc = doc_guess_autoecc(ops);
+	if (autoecc < 0)
+		return autoecc;
+
+	docg3->oob_write_ofs = to;
+	docg3->oob_autoecc = autoecc;
+	if (ops->mode == MTD_OPS_AUTO_OOB) {
+		doc_fill_autooob(docg3->oob_write_buf, ops->oobbuf);
+		ops->oobretlen = 8;
+	} else {
+		memcpy(docg3->oob_write_buf, ops->oobbuf, DOC_LAYOUT_OOB_SIZE);
+		ops->oobretlen = DOC_LAYOUT_OOB_SIZE;
+	}
+	return 0;
+}
+
+/**
+ * doc_write_oob - Write out of band bytes to flash
+ * @mtd: the device
+ * @ofs: the offset from first block and first page, in bytes, aligned on page
+ *       size
+ * @ops: the mtd oob structure
+ *
+ * Either write OOB data into a temporary buffer, for the subsequent write
+ * page. The provided OOB should be 16 bytes long. If a data buffer is provided
+ * as well, issue the page write.
+ * Or provide data without OOB, and then a all zeroed OOB will be used (ECC will
+ * still be filled in if asked for).
+ *
+ * Returns 0 is successfull, EINVAL if length is not 14 bytes
+ */
+static int doc_write_oob(struct mtd_info *mtd, loff_t ofs,
+			 struct mtd_oob_ops *ops)
+{
+	struct docg3 *docg3 = mtd->priv;
+	int block0, block1, page, ret, pofs = 0, autoecc, oobdelta;
+	u8 *oobbuf = ops->oobbuf;
+	u8 *buf = ops->datbuf;
+	size_t len, ooblen;
+	u8 oob[DOC_LAYOUT_OOB_SIZE];
+
+	if (buf)
+		len = ops->len;
+	else
+		len = 0;
+	if (oobbuf)
+		ooblen = ops->ooblen;
+	else
+		ooblen = 0;
+
+	if (oobbuf && ops->mode == MTD_OPS_PLACE_OOB)
+		oobbuf += ops->ooboffs;
+
+	doc_dbg("doc_write_oob(from=%lld, mode=%d, data=(%p:%zu), oob=(%p:%zu))\n",
+		ofs, ops->mode, buf, len, oobbuf, ooblen);
+	switch (ops->mode) {
+	case MTD_OPS_PLACE_OOB:
+	case MTD_OPS_RAW:
+		oobdelta = mtd->oobsize;
+		break;
+	case MTD_OPS_AUTO_OOB:
+		oobdelta = mtd->ecclayout->oobavail;
+		break;
+	default:
+		oobdelta = 0;
+	}
+	if ((len % DOC_LAYOUT_PAGE_SIZE) || (ooblen % oobdelta) ||
+	    (ofs % DOC_LAYOUT_PAGE_SIZE))
+		return -EINVAL;
+	if (len && ooblen &&
+	    (len / DOC_LAYOUT_PAGE_SIZE) != (ooblen / oobdelta))
+		return -EINVAL;
+
+	ret = -EINVAL;
+	calc_block_sector(ofs + len, &block0, &block1, &page, &pofs,
+			  docg3->reliable);
+	if (block1 > docg3->max_block)
+		goto err;
+
+	ops->oobretlen = 0;
+	ops->retlen = 0;
+	ret = 0;
+	if (len == 0 && ooblen == 0)
+		return -EINVAL;
+	if (len == 0 && ooblen > 0)
+		return doc_backup_oob(docg3, ofs, ops);
+
+	autoecc = doc_guess_autoecc(ops);
+	if (autoecc < 0)
+		return autoecc;
+
+	while (!ret && len > 0) {
+		memset(oob, 0, sizeof(oob));
+		if (ofs == docg3->oob_write_ofs)
+			memcpy(oob, docg3->oob_write_buf, DOC_LAYOUT_OOB_SIZE);
+		else if (ooblen > 0 && ops->mode == MTD_OPS_AUTO_OOB)
+			doc_fill_autooob(oob, oobbuf);
+		else if (ooblen > 0)
+			memcpy(oob, oobbuf, DOC_LAYOUT_OOB_SIZE);
+		ret = doc_write_page(docg3, ofs, buf, oob, autoecc);
+
+		ofs += DOC_LAYOUT_PAGE_SIZE;
+		len -= DOC_LAYOUT_PAGE_SIZE;
+		buf += DOC_LAYOUT_PAGE_SIZE;
+		if (ooblen) {
+			oobbuf += oobdelta;
+			ooblen -= oobdelta;
+			ops->oobretlen += oobdelta;
+		}
+		ops->retlen += DOC_LAYOUT_PAGE_SIZE;
+	}
+err:
+	doc_set_device_id(docg3, 0);
+	return ret;
+}
+
+/**
+ * doc_write - Write a buffer to the chip
+ * @mtd: the device
+ * @to: the offset from first block and first page, in bytes, aligned on page
+ *      size
+ * @len: the number of bytes to write (must be a full page size, ie. 512)
+ * @retlen: the number of bytes actually written (0 or 512)
+ * @buf: the buffer to get bytes from
+ *
+ * Writes data to the chip.
+ *
+ * Returns 0 if write successful, -EIO if write error
+ */
+static int doc_write(struct mtd_info *mtd, loff_t to, size_t len,
+		     size_t *retlen, const u_char *buf)
+{
+	struct docg3 *docg3 = mtd->priv;
+	int ret;
+	struct mtd_oob_ops ops;
+
+	doc_dbg("doc_write(to=%lld, len=%zu)\n", to, len);
+	ops.datbuf = (char *)buf;
+	ops.len = len;
+	ops.mode = MTD_OPS_PLACE_OOB;
+	ops.oobbuf = NULL;
+	ops.ooblen = 0;
+	ops.ooboffs = 0;
+
+	ret = doc_write_oob(mtd, to, &ops);
+	*retlen = ops.retlen;
+	return ret;
+}
+
+static struct docg3 *sysfs_dev2docg3(struct device *dev,
+				     struct device_attribute *attr)
+{
+	int floor;
+	struct platform_device *pdev = to_platform_device(dev);
+	struct mtd_info **docg3_floors = platform_get_drvdata(pdev);
+
+	floor = attr->attr.name[1] - '0';
+	if (floor < 0 || floor >= DOC_MAX_NBFLOORS)
+		return NULL;
+	else
+		return docg3_floors[floor]->priv;
+}
+
+static ssize_t dps0_is_key_locked(struct device *dev,
+				  struct device_attribute *attr, char *buf)
+{
+	struct docg3 *docg3 = sysfs_dev2docg3(dev, attr);
+	int dps0;
+
+	doc_set_device_id(docg3, docg3->device_id);
+	dps0 = doc_register_readb(docg3, DOC_DPS0_STATUS);
+	doc_set_device_id(docg3, 0);
+
+	return sprintf(buf, "%d\n", !(dps0 & DOC_DPS_KEY_OK));
+}
+
+static ssize_t dps1_is_key_locked(struct device *dev,
+				  struct device_attribute *attr, char *buf)
+{
+	struct docg3 *docg3 = sysfs_dev2docg3(dev, attr);
+	int dps1;
+
+	doc_set_device_id(docg3, docg3->device_id);
+	dps1 = doc_register_readb(docg3, DOC_DPS1_STATUS);
+	doc_set_device_id(docg3, 0);
+
+	return sprintf(buf, "%d\n", !(dps1 & DOC_DPS_KEY_OK));
+}
+
+static ssize_t dps0_insert_key(struct device *dev,
+			       struct device_attribute *attr,
+			       const char *buf, size_t count)
+{
+	struct docg3 *docg3 = sysfs_dev2docg3(dev, attr);
+	int i;
+
+	if (count != DOC_LAYOUT_DPS_KEY_LENGTH)
+		return -EINVAL;
+
+	doc_set_device_id(docg3, docg3->device_id);
+	for (i = 0; i < DOC_LAYOUT_DPS_KEY_LENGTH; i++)
+		doc_writeb(docg3, buf[i], DOC_DPS0_KEY);
+	doc_set_device_id(docg3, 0);
+	return count;
+}
+
+static ssize_t dps1_insert_key(struct device *dev,
+			       struct device_attribute *attr,
+			       const char *buf, size_t count)
+{
+	struct docg3 *docg3 = sysfs_dev2docg3(dev, attr);
+	int i;
+
+	if (count != DOC_LAYOUT_DPS_KEY_LENGTH)
+		return -EINVAL;
+
+	doc_set_device_id(docg3, docg3->device_id);
+	for (i = 0; i < DOC_LAYOUT_DPS_KEY_LENGTH; i++)
+		doc_writeb(docg3, buf[i], DOC_DPS1_KEY);
+	doc_set_device_id(docg3, 0);
+	return count;
+}
+
+#define FLOOR_SYSFS(id) { \
+	__ATTR(f##id##_dps0_is_keylocked, S_IRUGO, dps0_is_key_locked, NULL), \
+	__ATTR(f##id##_dps1_is_keylocked, S_IRUGO, dps1_is_key_locked, NULL), \
+	__ATTR(f##id##_dps0_protection_key, S_IWUGO, NULL, dps0_insert_key), \
+	__ATTR(f##id##_dps1_protection_key, S_IWUGO, NULL, dps1_insert_key), \
+}
+
+static struct device_attribute doc_sys_attrs[DOC_MAX_NBFLOORS][4] = {
+	FLOOR_SYSFS(0), FLOOR_SYSFS(1), FLOOR_SYSFS(2), FLOOR_SYSFS(3)
+};
+
+static int doc_register_sysfs(struct platform_device *pdev,
+			      struct mtd_info **floors)
+{
+	int ret = 0, floor, i = 0;
+	struct device *dev = &pdev->dev;
+
+	for (floor = 0; !ret && floor < DOC_MAX_NBFLOORS && floors[floor];
+	     floor++)
+		for (i = 0; !ret && i < 4; i++)
+			ret = device_create_file(dev, &doc_sys_attrs[floor][i]);
+	if (!ret)
+		return 0;
+	do {
+		while (--i >= 0)
+			device_remove_file(dev, &doc_sys_attrs[floor][i]);
+		i = 4;
+	} while (--floor >= 0);
+	return ret;
+}
+
+static void doc_unregister_sysfs(struct platform_device *pdev,
+				 struct mtd_info **floors)
+{
+	struct device *dev = &pdev->dev;
+	int floor, i;
+
+	for (floor = 0; floor < DOC_MAX_NBFLOORS && floors[floor];
+	     floor++)
+		for (i = 0; i < 4; i++)
+			device_remove_file(dev, &doc_sys_attrs[floor][i]);
+}
 
 /*
  * Debug sysfs entries
@@ -852,13 +1703,15 @@ static int dbg_protection_show(struct seq_file *s, void *p)
 {
 	struct docg3 *docg3 = (struct docg3 *)s->private;
 	int pos = 0;
-	int protect = doc_register_readb(docg3, DOC_PROTECTION);
-	int dps0 = doc_register_readb(docg3, DOC_DPS0_STATUS);
-	int dps0_low = doc_register_readb(docg3, DOC_DPS0_ADDRLOW);
-	int dps0_high = doc_register_readb(docg3, DOC_DPS0_ADDRHIGH);
-	int dps1 = doc_register_readb(docg3, DOC_DPS1_STATUS);
-	int dps1_low = doc_register_readb(docg3, DOC_DPS1_ADDRLOW);
-	int dps1_high = doc_register_readb(docg3, DOC_DPS1_ADDRHIGH);
+	int protect, dps0, dps0_low, dps0_high, dps1, dps1_low, dps1_high;
+
+	protect = doc_register_readb(docg3, DOC_PROTECTION);
+	dps0 = doc_register_readb(docg3, DOC_DPS0_STATUS);
+	dps0_low = doc_register_readw(docg3, DOC_DPS0_ADDRLOW);
+	dps0_high = doc_register_readw(docg3, DOC_DPS0_ADDRHIGH);
+	dps1 = doc_register_readb(docg3, DOC_DPS1_STATUS);
+	dps1_low = doc_register_readw(docg3, DOC_DPS1_ADDRLOW);
+	dps1_high = doc_register_readw(docg3, DOC_DPS1_ADDRHIGH);
 
 	pos += seq_printf(s, "Protection = 0x%02x (",
 			 protect);
@@ -947,52 +1800,54 @@ static void __init doc_set_driver_info(int chip_id, struct mtd_info *mtd)
 
 	cfg = doc_register_readb(docg3, DOC_CONFIGURATION);
 	docg3->if_cfg = (cfg & DOC_CONF_IF_CFG ? 1 : 0);
+	docg3->reliable = reliable_mode;
 
 	switch (chip_id) {
 	case DOC_CHIPID_G3:
-		mtd->name = "DiskOnChip G3";
+		mtd->name = kasprintf(GFP_KERNEL, "DiskOnChip G3 floor %d",
+				      docg3->device_id);
 		docg3->max_block = 2047;
 		break;
 	}
 	mtd->type = MTD_NANDFLASH;
-	/*
-	 * Once write methods are added, the correct flags will be set.
-	 * mtd->flags = MTD_CAP_NANDFLASH;
-	 */
-	mtd->flags = MTD_CAP_ROM;
+	mtd->flags = MTD_CAP_NANDFLASH;
 	mtd->size = (docg3->max_block + 1) * DOC_LAYOUT_BLOCK_SIZE;
+	if (docg3->reliable == 2)
+		mtd->size /= 2;
 	mtd->erasesize = DOC_LAYOUT_BLOCK_SIZE * DOC_LAYOUT_NBPLANES;
+	if (docg3->reliable == 2)
+		mtd->erasesize /= 2;
 	mtd->writesize = DOC_LAYOUT_PAGE_SIZE;
 	mtd->oobsize = DOC_LAYOUT_OOB_SIZE;
 	mtd->owner = THIS_MODULE;
-	mtd->erase = NULL;
-	mtd->point = NULL;
-	mtd->unpoint = NULL;
+	mtd->erase = doc_erase;
 	mtd->read = doc_read;
-	mtd->write = NULL;
+	mtd->write = doc_write;
 	mtd->read_oob = doc_read_oob;
-	mtd->write_oob = NULL;
-	mtd->sync = NULL;
+	mtd->write_oob = doc_write_oob;
 	mtd->block_isbad = doc_block_isbad;
+	mtd->ecclayout = &docg3_oobinfo;
 }
 
 /**
- * doc_probe - Probe the IO space for a DiskOnChip G3 chip
- * @pdev: platform device
+ * doc_probe_device - Check if a device is available
+ * @base: the io space where the device is probed
+ * @floor: the floor of the probed device
+ * @dev: the device
  *
- * Probes for a G3 chip at the specified IO space in the platform data
- * ressources.
+ * Checks whether a device at the specified IO range, and floor is available.
  *
- * Returns 0 on success, -ENOMEM, -ENXIO on error
+ * Returns a mtd_info struct if there is a device, ENODEV if none found, ENOMEM
+ * if a memory allocation failed. If floor 0 is checked, a reset of the ASIC is
+ * launched.
  */
-static int __init docg3_probe(struct platform_device *pdev)
+static struct mtd_info *doc_probe_device(void __iomem *base, int floor,
+					 struct device *dev)
 {
-	struct device *dev = &pdev->dev;
-	struct docg3 *docg3;
-	struct mtd_info *mtd;
-	struct resource *ress;
 	int ret, bbt_nbpages;
 	u16 chip_id, chip_id_inv;
+	struct docg3 *docg3;
+	struct mtd_info *mtd;
 
 	ret = -ENOMEM;
 	docg3 = kzalloc(sizeof(struct docg3), GFP_KERNEL);
@@ -1002,69 +1857,218 @@ static int __init docg3_probe(struct platform_device *pdev)
 	if (!mtd)
 		goto nomem2;
 	mtd->priv = docg3;
+	bbt_nbpages = DIV_ROUND_UP(docg3->max_block + 1,
+				   8 * DOC_LAYOUT_PAGE_SIZE);
+	docg3->bbt = kzalloc(bbt_nbpages * DOC_LAYOUT_PAGE_SIZE, GFP_KERNEL);
+	if (!docg3->bbt)
+		goto nomem3;
 
-	ret = -ENXIO;
-	ress = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!ress) {
-		dev_err(dev, "No I/O memory resource defined\n");
-		goto noress;
-	}
-	docg3->base = ioremap(ress->start, DOC_IOSPACE_SIZE);
-
-	docg3->dev = &pdev->dev;
-	docg3->device_id = 0;
+	docg3->dev = dev;
+	docg3->device_id = floor;
+	docg3->base = base;
 	doc_set_device_id(docg3, docg3->device_id);
-	doc_set_asic_mode(docg3, DOC_ASICMODE_RESET);
+	if (!floor)
+		doc_set_asic_mode(docg3, DOC_ASICMODE_RESET);
 	doc_set_asic_mode(docg3, DOC_ASICMODE_NORMAL);
 
 	chip_id = doc_register_readw(docg3, DOC_CHIPID);
 	chip_id_inv = doc_register_readw(docg3, DOC_CHIPID_INV);
 
-	ret = -ENODEV;
+	ret = 0;
 	if (chip_id != (u16)(~chip_id_inv)) {
-		doc_info("No device found at IO addr %p\n",
-			 (void *)ress->start);
-		goto nochipfound;
+		goto nomem3;
 	}
 
 	switch (chip_id) {
 	case DOC_CHIPID_G3:
-		doc_info("Found a G3 DiskOnChip at addr %p\n",
-			 (void *)ress->start);
+		doc_info("Found a G3 DiskOnChip at addr %p, floor %d\n",
+			 base, floor);
 		break;
 	default:
 		doc_err("Chip id %04x is not a DiskOnChip G3 chip\n", chip_id);
-		goto nochipfound;
+		goto nomem3;
 	}
 
 	doc_set_driver_info(chip_id, mtd);
-	platform_set_drvdata(pdev, mtd);
 
-	ret = -ENOMEM;
-	bbt_nbpages = DIV_ROUND_UP(docg3->max_block + 1,
-				   8 * DOC_LAYOUT_PAGE_SIZE);
-	docg3->bbt = kzalloc(bbt_nbpages * DOC_LAYOUT_PAGE_SIZE, GFP_KERNEL);
-	if (!docg3->bbt)
-		goto nochipfound;
+	doc_hamming_ecc_init(docg3, DOC_LAYOUT_OOB_PAGEINFO_SZ);
 	doc_reload_bbt(docg3);
+	return mtd;
 
-	ret = mtd_device_parse_register(mtd, part_probes,
-					NULL, NULL, 0);
-	if (ret)
-		goto register_error;
+nomem3:
+	kfree(mtd);
+nomem2:
+	kfree(docg3);
+nomem1:
+	return ERR_PTR(ret);
+}
 
-	doc_dbg_register(docg3);
-	return 0;
+/**
+ * doc_release_device - Release a docg3 floor
+ * @mtd: the device
+ */
+static void doc_release_device(struct mtd_info *mtd)
+{
+	struct docg3 *docg3 = mtd->priv;
 
-register_error:
+	mtd_device_unregister(mtd);
 	kfree(docg3->bbt);
-nochipfound:
-	iounmap(docg3->base);
-noress:
+	kfree(docg3);
+	kfree(mtd->name);
 	kfree(mtd);
+}
+
+/**
+ * docg3_resume - Awakens docg3 floor
+ * @pdev: platfrom device
+ *
+ * Returns 0 (always successfull)
+ */
+static int docg3_resume(struct platform_device *pdev)
+{
+	int i;
+	struct mtd_info **docg3_floors, *mtd;
+	struct docg3 *docg3;
+
+	docg3_floors = platform_get_drvdata(pdev);
+	mtd = docg3_floors[0];
+	docg3 = mtd->priv;
+
+	doc_dbg("docg3_resume()\n");
+	for (i = 0; i < 12; i++)
+		doc_readb(docg3, DOC_IOSPACE_IPL);
+	return 0;
+}
+
+/**
+ * docg3_suspend - Put in low power mode the docg3 floor
+ * @pdev: platform device
+ * @state: power state
+ *
+ * Shuts off most of docg3 circuitery to lower power consumption.
+ *
+ * Returns 0 if suspend succeeded, -EIO if chip refused suspend
+ */
+static int docg3_suspend(struct platform_device *pdev, pm_message_t state)
+{
+	int floor, i;
+	struct mtd_info **docg3_floors, *mtd;
+	struct docg3 *docg3;
+	u8 ctrl, pwr_down;
+
+	docg3_floors = platform_get_drvdata(pdev);
+	for (floor = 0; floor < DOC_MAX_NBFLOORS; floor++) {
+		mtd = docg3_floors[floor];
+		if (!mtd)
+			continue;
+		docg3 = mtd->priv;
+
+		doc_writeb(docg3, floor, DOC_DEVICESELECT);
+		ctrl = doc_register_readb(docg3, DOC_FLASHCONTROL);
+		ctrl &= ~DOC_CTRL_VIOLATION & ~DOC_CTRL_CE;
+		doc_writeb(docg3, ctrl, DOC_FLASHCONTROL);
+
+		for (i = 0; i < 10; i++) {
+			usleep_range(3000, 4000);
+			pwr_down = doc_register_readb(docg3, DOC_POWERMODE);
+			if (pwr_down & DOC_POWERDOWN_READY)
+				break;
+		}
+		if (pwr_down & DOC_POWERDOWN_READY) {
+			doc_dbg("docg3_suspend(): floor %d powerdown ok\n",
+				floor);
+		} else {
+			doc_err("docg3_suspend(): floor %d powerdown failed\n",
+				floor);
+			return -EIO;
+		}
+	}
+
+	mtd = docg3_floors[0];
+	docg3 = mtd->priv;
+	doc_set_asic_mode(docg3, DOC_ASICMODE_POWERDOWN);
+	return 0;
+}
+
+/**
+ * doc_probe - Probe the IO space for a DiskOnChip G3 chip
+ * @pdev: platform device
+ *
+ * Probes for a G3 chip at the specified IO space in the platform data
+ * ressources. The floor 0 must be available.
+ *
+ * Returns 0 on success, -ENOMEM, -ENXIO on error
+ */
+static int __init docg3_probe(struct platform_device *pdev)
+{
+	struct device *dev = &pdev->dev;
+	struct mtd_info *mtd;
+	struct resource *ress;
+	void __iomem *base;
+	int ret, floor, found = 0;
+	struct mtd_info **docg3_floors;
+
+	ret = -ENXIO;
+	ress = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!ress) {
+		dev_err(dev, "No I/O memory resource defined\n");
+		goto noress;
+	}
+	base = ioremap(ress->start, DOC_IOSPACE_SIZE);
+
+	ret = -ENOMEM;
+	docg3_floors = kzalloc(sizeof(*docg3_floors) * DOC_MAX_NBFLOORS,
+			       GFP_KERNEL);
+	if (!docg3_floors)
+		goto nomem1;
+	docg3_bch = init_bch(DOC_ECC_BCH_M, DOC_ECC_BCH_T,
+			     DOC_ECC_BCH_PRIMPOLY);
+	if (!docg3_bch)
+		goto nomem2;
+
+	for (floor = 0; floor < DOC_MAX_NBFLOORS; floor++) {
+		mtd = doc_probe_device(base, floor, dev);
+		if (IS_ERR(mtd)) {
+			ret = PTR_ERR(mtd);
+			goto err_probe;
+		}
+		if (!mtd) {
+			if (floor == 0)
+				goto notfound;
+			else
+				continue;
+		}
+		docg3_floors[floor] = mtd;
+		ret = mtd_device_parse_register(mtd, part_probes, NULL, NULL,
+						0);
+		if (ret)
+			goto err_probe;
+		found++;
+	}
+
+	ret = doc_register_sysfs(pdev, docg3_floors);
+	if (ret)
+		goto err_probe;
+	if (!found)
+		goto notfound;
+
+	platform_set_drvdata(pdev, docg3_floors);
+	doc_dbg_register(docg3_floors[0]->priv);
+	return 0;
+
+notfound:
+	ret = -ENODEV;
+	dev_info(dev, "No supported DiskOnChip found\n");
+err_probe:
+	free_bch(docg3_bch);
+	for (floor = 0; floor < DOC_MAX_NBFLOORS; floor++)
+		if (docg3_floors[floor])
+			doc_release_device(docg3_floors[floor]);
 nomem2:
-	kfree(docg3);
+	kfree(docg3_floors);
 nomem1:
+	iounmap(base);
+noress:
 	return ret;
 }
 
@@ -1076,15 +2080,20 @@ nomem1:
  */
 static int __exit docg3_release(struct platform_device *pdev)
 {
-	struct mtd_info *mtd = platform_get_drvdata(pdev);
-	struct docg3 *docg3 = mtd->priv;
+	struct mtd_info **docg3_floors = platform_get_drvdata(pdev);
+	struct docg3 *docg3 = docg3_floors[0]->priv;
+	void __iomem *base = docg3->base;
+	int floor;
 
+	doc_unregister_sysfs(pdev, docg3_floors);
 	doc_dbg_unregister(docg3);
-	mtd_device_unregister(mtd);
-	iounmap(docg3->base);
-	kfree(docg3->bbt);
-	kfree(docg3);
-	kfree(mtd);
+	for (floor = 0; floor < DOC_MAX_NBFLOORS; floor++)
+		if (docg3_floors[floor])
+			doc_release_device(docg3_floors[floor]);
+
+	kfree(docg3_floors);
+	free_bch(docg3_bch);
+	iounmap(base);
 	return 0;
 }
 
@@ -1093,6 +2102,8 @@ static struct platform_driver g3_driver = {
 		.name	= "docg3",
 		.owner	= THIS_MODULE,
 	},
+	.suspend	= docg3_suspend,
+	.resume		= docg3_resume,
 	.remove		= __exit_p(docg3_release),
 };
 
diff --git a/drivers/mtd/devices/docg3.h b/drivers/mtd/devices/docg3.h
index 0d407be24594..db0da436b493 100644
--- a/drivers/mtd/devices/docg3.h
+++ b/drivers/mtd/devices/docg3.h
@@ -51,10 +51,19 @@
 #define DOC_LAYOUT_WEAR_OFFSET		(DOC_LAYOUT_PAGE_OOB_SIZE * 2)
 #define DOC_LAYOUT_BLOCK_SIZE					\
 	(DOC_LAYOUT_PAGES_PER_BLOCK * DOC_LAYOUT_PAGE_SIZE)
+
+/*
+ * ECC related constants
+ */
+#define DOC_ECC_BCH_M			14
+#define DOC_ECC_BCH_T			4
+#define DOC_ECC_BCH_PRIMPOLY		0x4443
 #define DOC_ECC_BCH_SIZE		7
 #define DOC_ECC_BCH_COVERED_BYTES				\
 	(DOC_LAYOUT_PAGE_SIZE + DOC_LAYOUT_OOB_PAGEINFO_SZ +	\
-	 DOC_LAYOUT_OOB_HAMMING_SZ + DOC_LAYOUT_OOB_BCH_SZ)
+	 DOC_LAYOUT_OOB_HAMMING_SZ)
+#define DOC_ECC_BCH_TOTAL_BYTES					\
+	(DOC_ECC_BCH_COVERED_BYTES + DOC_LAYOUT_OOB_BCH_SZ)
 
 /*
  * Blocks distribution
@@ -80,6 +89,7 @@
 
 #define DOC_CHIPID_G3			0x200
 #define DOC_ERASE_MARK			0xaa
+#define DOC_MAX_NBFLOORS		4
 /*
  * Flash registers
  */
@@ -105,9 +115,11 @@
 #define DOC_ECCCONF1			0x1042
 #define DOC_ECCPRESET			0x1044
 #define DOC_HAMMINGPARITY		0x1046
-#define DOC_BCH_SYNDROM(idx)		(0x1048 + (idx << 1))
+#define DOC_BCH_HW_ECC(idx)		(0x1048 + idx)
 
 #define DOC_PROTECTION			0x1056
+#define DOC_DPS0_KEY			0x105c
+#define DOC_DPS1_KEY			0x105e
 #define DOC_DPS0_ADDRLOW		0x1060
 #define DOC_DPS0_ADDRHIGH		0x1062
 #define DOC_DPS1_ADDRLOW		0x1064
@@ -117,6 +129,7 @@
 
 #define DOC_ASICMODECONFIRM		0x1072
 #define DOC_CHIPID_INV			0x1074
+#define DOC_POWERMODE			0x107c
 
 /*
  * Flash sequences
@@ -124,11 +137,14 @@
  */
 #define DOC_SEQ_RESET			0x00
 #define DOC_SEQ_PAGE_SIZE_532		0x03
-#define DOC_SEQ_SET_MODE		0x09
+#define DOC_SEQ_SET_FASTMODE		0x05
+#define DOC_SEQ_SET_RELIABLEMODE	0x09
 #define DOC_SEQ_READ			0x12
 #define DOC_SEQ_SET_PLANE1		0x0e
 #define DOC_SEQ_SET_PLANE2		0x10
 #define DOC_SEQ_PAGE_SETUP		0x1d
+#define DOC_SEQ_ERASE			0x27
+#define DOC_SEQ_PLANES_STATUS		0x31
 
 /*
  * Flash commands
@@ -143,7 +159,10 @@
 #define DOC_CMD_PROG_BLOCK_ADDR		0x60
 #define DOC_CMD_PROG_CYCLE1		0x80
 #define DOC_CMD_PROG_CYCLE2		0x10
+#define DOC_CMD_PROG_CYCLE3		0x11
 #define DOC_CMD_ERASECYCLE2		0xd0
+#define DOC_CMD_READ_STATUS		0x70
+#define DOC_CMD_PLANES_STATUS		0x71
 
 #define DOC_CMD_RELIABLE_MODE		0x22
 #define DOC_CMD_FAST_MODE		0xa2
@@ -174,6 +193,7 @@
 /*
  * Flash register : DOC_ECCCONF0
  */
+#define DOC_ECCCONF0_WRITE_MODE		0x0000
 #define DOC_ECCCONF0_READ_MODE		0x8000
 #define DOC_ECCCONF0_AUTO_ECC_ENABLE	0x4000
 #define DOC_ECCCONF0_HAMMING_ENABLE	0x1000
@@ -185,7 +205,7 @@
  */
 #define DOC_ECCCONF1_BCH_SYNDROM_ERR	0x80
 #define DOC_ECCCONF1_UNKOWN1		0x40
-#define DOC_ECCCONF1_UNKOWN2		0x20
+#define DOC_ECCCONF1_PAGE_IS_WRITTEN	0x20
 #define DOC_ECCCONF1_UNKOWN3		0x10
 #define DOC_ECCCONF1_HAMMING_BITS_MASK	0x0f
 
@@ -223,13 +243,46 @@
 #define DOC_READADDR_ONE_BYTE		0x4000
 #define DOC_READADDR_ADDR_MASK		0x1fff
 
+/*
+ * Flash register : DOC_POWERMODE
+ */
+#define DOC_POWERDOWN_READY		0x80
+
+/*
+ * Status of erase and write operation
+ */
+#define DOC_PLANES_STATUS_FAIL		0x01
+#define DOC_PLANES_STATUS_PLANE0_KO	0x02
+#define DOC_PLANES_STATUS_PLANE1_KO	0x04
+
+/*
+ * DPS key management
+ *
+ * Each floor of docg3 has 2 protection areas: DPS0 and DPS1. These areas span
+ * across block boundaries, and define whether these blocks can be read or
+ * written.
+ * The definition is dynamically stored in page 0 of blocks (2,3) for DPS0, and
+ * page 0 of blocks (4,5) for DPS1.
+ */
+#define DOC_LAYOUT_DPS_KEY_LENGTH	8
+
 /**
  * struct docg3 - DiskOnChip driver private data
  * @dev: the device currently under control
  * @base: mapped IO space
  * @device_id: number of the cascaded DoCG3 device (0, 1, 2 or 3)
  * @if_cfg: if true, reads are on 16bits, else reads are on 8bits
+
+ * @reliable: if 0, docg3 in normal mode, if 1 docg3 in fast mode, if 2 in
+ *            reliable mode
+ *            Fast mode implies more errors than normal mode.
+ *            Reliable mode implies that page 2*n and 2*n+1 are clones.
  * @bbt: bad block table cache
+ * @oob_write_ofs: offset of the MTD where this OOB should belong (ie. in next
+ *                 page_write)
+ * @oob_autoecc: if 1, use only bytes 0-7, 15, and fill the others with HW ECC
+ *               if 0, use all the 16 bytes.
+ * @oob_write_buf: prepared OOB for next page_write
  * @debugfs_root: debugfs root node
  */
 struct docg3 {
@@ -237,8 +290,12 @@ struct docg3 {
 	void __iomem *base;
 	unsigned int device_id:4;
 	unsigned int if_cfg:1;
+	unsigned int reliable:2;
 	int max_block;
 	u8 *bbt;
+	loff_t oob_write_ofs;
+	int oob_autoecc;
+	u8 oob_write_buf[DOC_LAYOUT_OOB_SIZE];
 	struct dentry *debugfs_root;
 };
 
diff --git a/drivers/mtd/devices/docprobe.c b/drivers/mtd/devices/docprobe.c
index 45116bb30297..706b847b46b3 100644
--- a/drivers/mtd/devices/docprobe.c
+++ b/drivers/mtd/devices/docprobe.c
@@ -241,8 +241,7 @@ static void __init DoC_Probe(unsigned long physadr)
 			return;
 		}
 		docfound = 1;
-		mtd = kmalloc(sizeof(struct DiskOnChip) + sizeof(struct mtd_info), GFP_KERNEL);
-
+		mtd = kzalloc(sizeof(struct DiskOnChip) + sizeof(struct mtd_info), GFP_KERNEL);
 		if (!mtd) {
 			printk(KERN_WARNING "Cannot allocate memory for data structures. Dropping.\n");
 			iounmap(docptr);
@@ -250,10 +249,6 @@ static void __init DoC_Probe(unsigned long physadr)
 		}
 
 		this = (struct DiskOnChip *)(&mtd[1]);
-
-		memset((char *)mtd,0, sizeof(struct mtd_info));
-		memset((char *)this, 0, sizeof(struct DiskOnChip));
-
 		mtd->priv = this;
 		this->virtadr = docptr;
 		this->physadr = physadr;
diff --git a/drivers/mtd/devices/m25p80.c b/drivers/mtd/devices/m25p80.c
index 884904d3f9d2..7c60dddbefc0 100644
--- a/drivers/mtd/devices/m25p80.c
+++ b/drivers/mtd/devices/m25p80.c
@@ -992,7 +992,6 @@ static int __devexit m25p_remove(struct spi_device *spi)
 static struct spi_driver m25p80_driver = {
 	.driver = {
 		.name	= "m25p80",
-		.bus	= &spi_bus_type,
 		.owner	= THIS_MODULE,
 	},
 	.id_table	= m25p_ids,
diff --git a/drivers/mtd/devices/mtd_dataflash.c b/drivers/mtd/devices/mtd_dataflash.c
index d75c7af18a63..236057ead0d2 100644
--- a/drivers/mtd/devices/mtd_dataflash.c
+++ b/drivers/mtd/devices/mtd_dataflash.c
@@ -936,7 +936,6 @@ static int __devexit dataflash_remove(struct spi_device *spi)
 static struct spi_driver dataflash_driver = {
 	.driver = {
 		.name		= "mtd_dataflash",
-		.bus		= &spi_bus_type,
 		.owner		= THIS_MODULE,
 		.of_match_table = dataflash_dt_ids,
 	},
diff --git a/drivers/mtd/devices/sst25l.c b/drivers/mtd/devices/sst25l.c
index d38ef3bffe8d..5fc198350b94 100644
--- a/drivers/mtd/devices/sst25l.c
+++ b/drivers/mtd/devices/sst25l.c
@@ -378,7 +378,7 @@ static int __devinit sst25l_probe(struct spi_device *spi)
 	struct flash_info *flash_info;
 	struct sst25l_flash *flash;
 	struct flash_platform_data *data;
-	int ret, i;
+	int ret;
 
 	flash_info = sst25l_match_device(spi);
 	if (!flash_info)
@@ -444,7 +444,6 @@ static int __devexit sst25l_remove(struct spi_device *spi)
 static struct spi_driver sst25l_driver = {
 	.driver = {
 		.name	= "sst25l",
-		.bus	= &spi_bus_type,
 		.owner	= THIS_MODULE,
 	},
 	.probe		= sst25l_probe,
diff --git a/drivers/mtd/ftl.c b/drivers/mtd/ftl.c
index c7382bb686c6..19d637266fcd 100644
--- a/drivers/mtd/ftl.c
+++ b/drivers/mtd/ftl.c
@@ -168,8 +168,8 @@ static int scan_header(partition_t *part)
 	 (offset + sizeof(header)) < max_offset;
 	 offset += part->mbd.mtd->erasesize ? : 0x2000) {
 
-	err = part->mbd.mtd->read(part->mbd.mtd, offset, sizeof(header), &ret,
-			      (unsigned char *)&header);
+	err = mtd_read(part->mbd.mtd, offset, sizeof(header), &ret,
+                       (unsigned char *)&header);
 
 	if (err)
 	    return err;
@@ -224,8 +224,8 @@ static int build_maps(partition_t *part)
     for (i = 0; i < le16_to_cpu(part->header.NumEraseUnits); i++) {
 	offset = ((i + le16_to_cpu(part->header.FirstPhysicalEUN))
 		      << part->header.EraseUnitSize);
-	ret = part->mbd.mtd->read(part->mbd.mtd, offset, sizeof(header), &retval,
-			      (unsigned char *)&header);
+	ret = mtd_read(part->mbd.mtd, offset, sizeof(header), &retval,
+                       (unsigned char *)&header);
 
 	if (ret)
 	    goto out_XferInfo;
@@ -289,9 +289,9 @@ static int build_maps(partition_t *part)
 	part->EUNInfo[i].Deleted = 0;
 	offset = part->EUNInfo[i].Offset + le32_to_cpu(header.BAMOffset);
 
-	ret = part->mbd.mtd->read(part->mbd.mtd, offset,
-			      part->BlocksPerUnit * sizeof(uint32_t), &retval,
-			      (unsigned char *)part->bam_cache);
+	ret = mtd_read(part->mbd.mtd, offset,
+                       part->BlocksPerUnit * sizeof(uint32_t), &retval,
+                       (unsigned char *)part->bam_cache);
 
 	if (ret)
 		goto out_bam_cache;
@@ -355,7 +355,7 @@ static int erase_xfer(partition_t *part,
     erase->len = 1 << part->header.EraseUnitSize;
     erase->priv = (u_long)part;
 
-    ret = part->mbd.mtd->erase(part->mbd.mtd, erase);
+    ret = mtd_erase(part->mbd.mtd, erase);
 
     if (!ret)
 	    xfer->EraseCount++;
@@ -422,8 +422,8 @@ static int prepare_xfer(partition_t *part, int i)
     header.LogicalEUN = cpu_to_le16(0xffff);
     header.EraseCount = cpu_to_le32(xfer->EraseCount);
 
-    ret = part->mbd.mtd->write(part->mbd.mtd, xfer->Offset, sizeof(header),
-			   &retlen, (u_char *)&header);
+    ret = mtd_write(part->mbd.mtd, xfer->Offset, sizeof(header), &retlen,
+                    (u_char *)&header);
 
     if (ret) {
 	return ret;
@@ -438,8 +438,8 @@ static int prepare_xfer(partition_t *part, int i)
 
     for (i = 0; i < nbam; i++, offset += sizeof(uint32_t)) {
 
-	ret = part->mbd.mtd->write(part->mbd.mtd, offset, sizeof(uint32_t),
-			       &retlen, (u_char *)&ctl);
+	ret = mtd_write(part->mbd.mtd, offset, sizeof(uint32_t), &retlen,
+                        (u_char *)&ctl);
 
 	if (ret)
 	    return ret;
@@ -485,9 +485,9 @@ static int copy_erase_unit(partition_t *part, uint16_t srcunit,
 
 	offset = eun->Offset + le32_to_cpu(part->header.BAMOffset);
 
-	ret = part->mbd.mtd->read(part->mbd.mtd, offset,
-			      part->BlocksPerUnit * sizeof(uint32_t),
-			      &retlen, (u_char *) (part->bam_cache));
+	ret = mtd_read(part->mbd.mtd, offset,
+                       part->BlocksPerUnit * sizeof(uint32_t), &retlen,
+                       (u_char *)(part->bam_cache));
 
 	/* mark the cache bad, in case we get an error later */
 	part->bam_index = 0xffff;
@@ -503,8 +503,8 @@ static int copy_erase_unit(partition_t *part, uint16_t srcunit,
     offset = xfer->Offset + 20; /* Bad! */
     unit = cpu_to_le16(0x7fff);
 
-    ret = part->mbd.mtd->write(part->mbd.mtd, offset, sizeof(uint16_t),
-			   &retlen, (u_char *) &unit);
+    ret = mtd_write(part->mbd.mtd, offset, sizeof(uint16_t), &retlen,
+                    (u_char *)&unit);
 
     if (ret) {
 	printk( KERN_WARNING "ftl: Failed to write back to BAM cache in copy_erase_unit()!\n");
@@ -523,16 +523,16 @@ static int copy_erase_unit(partition_t *part, uint16_t srcunit,
 	    break;
 	case BLOCK_DATA:
 	case BLOCK_REPLACEMENT:
-	    ret = part->mbd.mtd->read(part->mbd.mtd, src, SECTOR_SIZE,
-                        &retlen, (u_char *) buf);
+	    ret = mtd_read(part->mbd.mtd, src, SECTOR_SIZE, &retlen,
+                           (u_char *)buf);
 	    if (ret) {
 		printk(KERN_WARNING "ftl: Error reading old xfer unit in copy_erase_unit\n");
 		return ret;
             }
 
 
-	    ret = part->mbd.mtd->write(part->mbd.mtd, dest, SECTOR_SIZE,
-                        &retlen, (u_char *) buf);
+	    ret = mtd_write(part->mbd.mtd, dest, SECTOR_SIZE, &retlen,
+                            (u_char *)buf);
 	    if (ret)  {
 		printk(KERN_WARNING "ftl: Error writing new xfer unit in copy_erase_unit\n");
 		return ret;
@@ -550,9 +550,11 @@ static int copy_erase_unit(partition_t *part, uint16_t srcunit,
     }
 
     /* Write the BAM to the transfer unit */
-    ret = part->mbd.mtd->write(part->mbd.mtd, xfer->Offset + le32_to_cpu(part->header.BAMOffset),
-                    part->BlocksPerUnit * sizeof(int32_t), &retlen,
-		    (u_char *)part->bam_cache);
+    ret = mtd_write(part->mbd.mtd,
+                    xfer->Offset + le32_to_cpu(part->header.BAMOffset),
+                    part->BlocksPerUnit * sizeof(int32_t),
+                    &retlen,
+                    (u_char *)part->bam_cache);
     if (ret) {
 	printk( KERN_WARNING "ftl: Error writing BAM in copy_erase_unit\n");
 	return ret;
@@ -560,8 +562,8 @@ static int copy_erase_unit(partition_t *part, uint16_t srcunit,
 
 
     /* All clear? Then update the LogicalEUN again */
-    ret = part->mbd.mtd->write(part->mbd.mtd, xfer->Offset + 20, sizeof(uint16_t),
-			   &retlen, (u_char *)&srcunitswap);
+    ret = mtd_write(part->mbd.mtd, xfer->Offset + 20, sizeof(uint16_t),
+                    &retlen, (u_char *)&srcunitswap);
 
     if (ret) {
 	printk(KERN_WARNING "ftl: Error writing new LogicalEUN in copy_erase_unit\n");
@@ -648,8 +650,7 @@ static int reclaim_block(partition_t *part)
 	    if (queued) {
 		pr_debug("ftl_cs: waiting for transfer "
 		      "unit to be prepared...\n");
-		if (part->mbd.mtd->sync)
-			part->mbd.mtd->sync(part->mbd.mtd);
+		mtd_sync(part->mbd.mtd);
 	    } else {
 		static int ne = 0;
 		if (++ne < 5)
@@ -747,10 +748,11 @@ static uint32_t find_free(partition_t *part)
 	/* Invalidate cache */
 	part->bam_index = 0xffff;
 
-	ret = part->mbd.mtd->read(part->mbd.mtd,
-		       part->EUNInfo[eun].Offset + le32_to_cpu(part->header.BAMOffset),
-		       part->BlocksPerUnit * sizeof(uint32_t),
-		       &retlen, (u_char *) (part->bam_cache));
+	ret = mtd_read(part->mbd.mtd,
+                       part->EUNInfo[eun].Offset + le32_to_cpu(part->header.BAMOffset),
+                       part->BlocksPerUnit * sizeof(uint32_t),
+                       &retlen,
+                       (u_char *)(part->bam_cache));
 
 	if (ret) {
 	    printk(KERN_WARNING"ftl: Error reading BAM in find_free\n");
@@ -810,8 +812,8 @@ static int ftl_read(partition_t *part, caddr_t buffer,
 	else {
 	    offset = (part->EUNInfo[log_addr / bsize].Offset
 			  + (log_addr % bsize));
-	    ret = part->mbd.mtd->read(part->mbd.mtd, offset, SECTOR_SIZE,
-			   &retlen, (u_char *) buffer);
+	    ret = mtd_read(part->mbd.mtd, offset, SECTOR_SIZE, &retlen,
+                           (u_char *)buffer);
 
 	    if (ret) {
 		printk(KERN_WARNING "Error reading MTD device in ftl_read()\n");
@@ -849,8 +851,8 @@ static int set_bam_entry(partition_t *part, uint32_t log_addr,
 		  le32_to_cpu(part->header.BAMOffset));
 
 #ifdef PSYCHO_DEBUG
-    ret = part->mbd.mtd->read(part->mbd.mtd, offset, sizeof(uint32_t),
-                        &retlen, (u_char *)&old_addr);
+    ret = mtd_read(part->mbd.mtd, offset, sizeof(uint32_t), &retlen,
+                   (u_char *)&old_addr);
     if (ret) {
 	printk(KERN_WARNING"ftl: Error reading old_addr in set_bam_entry: %d\n",ret);
 	return ret;
@@ -886,8 +888,8 @@ static int set_bam_entry(partition_t *part, uint32_t log_addr,
 #endif
 	part->bam_cache[blk] = le_virt_addr;
     }
-    ret = part->mbd.mtd->write(part->mbd.mtd, offset, sizeof(uint32_t),
-                            &retlen, (u_char *)&le_virt_addr);
+    ret = mtd_write(part->mbd.mtd, offset, sizeof(uint32_t), &retlen,
+                    (u_char *)&le_virt_addr);
 
     if (ret) {
 	printk(KERN_NOTICE "ftl_cs: set_bam_entry() failed!\n");
@@ -946,8 +948,7 @@ static int ftl_write(partition_t *part, caddr_t buffer,
 	part->EUNInfo[part->bam_index].Deleted++;
 	offset = (part->EUNInfo[part->bam_index].Offset +
 		      blk * SECTOR_SIZE);
-	ret = part->mbd.mtd->write(part->mbd.mtd, offset, SECTOR_SIZE, &retlen,
-                                     buffer);
+	ret = mtd_write(part->mbd.mtd, offset, SECTOR_SIZE, &retlen, buffer);
 
 	if (ret) {
 	    printk(KERN_NOTICE "ftl_cs: block write failed!\n");
diff --git a/drivers/mtd/inftlcore.c b/drivers/mtd/inftlcore.c
index dd034efd1875..28646c95cfb8 100644
--- a/drivers/mtd/inftlcore.c
+++ b/drivers/mtd/inftlcore.c
@@ -158,7 +158,7 @@ int inftl_read_oob(struct mtd_info *mtd, loff_t offs, size_t len,
 	ops.oobbuf = buf;
 	ops.datbuf = NULL;
 
-	res = mtd->read_oob(mtd, offs & ~(mtd->writesize - 1), &ops);
+	res = mtd_read_oob(mtd, offs & ~(mtd->writesize - 1), &ops);
 	*retlen = ops.oobretlen;
 	return res;
 }
@@ -178,7 +178,7 @@ int inftl_write_oob(struct mtd_info *mtd, loff_t offs, size_t len,
 	ops.oobbuf = buf;
 	ops.datbuf = NULL;
 
-	res = mtd->write_oob(mtd, offs & ~(mtd->writesize - 1), &ops);
+	res = mtd_write_oob(mtd, offs & ~(mtd->writesize - 1), &ops);
 	*retlen = ops.oobretlen;
 	return res;
 }
@@ -199,7 +199,7 @@ static int inftl_write(struct mtd_info *mtd, loff_t offs, size_t len,
 	ops.datbuf = buf;
 	ops.len = len;
 
-	res = mtd->write_oob(mtd, offs & ~(mtd->writesize - 1), &ops);
+	res = mtd_write_oob(mtd, offs & ~(mtd->writesize - 1), &ops);
 	*retlen = ops.retlen;
 	return res;
 }
@@ -343,14 +343,17 @@ static u16 INFTL_foldchain(struct INFTLrecord *inftl, unsigned thisVUC, unsigned
 		if (BlockMap[block] == BLOCK_NIL)
 			continue;
 
-		ret = mtd->read(mtd, (inftl->EraseSize * BlockMap[block]) +
-				(block * SECTORSIZE), SECTORSIZE, &retlen,
-				movebuf);
+		ret = mtd_read(mtd,
+			       (inftl->EraseSize * BlockMap[block]) + (block * SECTORSIZE),
+			       SECTORSIZE,
+			       &retlen,
+			       movebuf);
 		if (ret < 0 && !mtd_is_bitflip(ret)) {
-			ret = mtd->read(mtd,
-					(inftl->EraseSize * BlockMap[block]) +
-					(block * SECTORSIZE), SECTORSIZE,
-					&retlen, movebuf);
+			ret = mtd_read(mtd,
+				       (inftl->EraseSize * BlockMap[block]) + (block * SECTORSIZE),
+				       SECTORSIZE,
+				       &retlen,
+				       movebuf);
 			if (ret != -EIO)
 				pr_debug("INFTL: error went away on retry?\n");
 		}
@@ -914,7 +917,7 @@ foundit:
 	} else {
 		size_t retlen;
 		loff_t ptr = (thisEUN * inftl->EraseSize) + blockofs;
-		int ret = mtd->read(mtd, ptr, SECTORSIZE, &retlen, buffer);
+		int ret = mtd_read(mtd, ptr, SECTORSIZE, &retlen, buffer);
 
 		/* Handle corrected bit flips gracefully */
 		if (ret < 0 && !mtd_is_bitflip(ret))
diff --git a/drivers/mtd/inftlmount.c b/drivers/mtd/inftlmount.c
index 2ff601f816ce..4adc0374fb6b 100644
--- a/drivers/mtd/inftlmount.c
+++ b/drivers/mtd/inftlmount.c
@@ -73,8 +73,8 @@ static int find_boot_record(struct INFTLrecord *inftl)
 		 * Check for BNAND header first. Then whinge if it's found
 		 * but later checks fail.
 		 */
-		ret = mtd->read(mtd, block * inftl->EraseSize,
-				SECTORSIZE, &retlen, buf);
+		ret = mtd_read(mtd, block * inftl->EraseSize, SECTORSIZE,
+			       &retlen, buf);
 		/* We ignore ret in case the ECC of the MediaHeader is invalid
 		   (which is apparently acceptable) */
 		if (retlen != SECTORSIZE) {
@@ -118,8 +118,8 @@ static int find_boot_record(struct INFTLrecord *inftl)
 		memcpy(mh, buf, sizeof(struct INFTLMediaHeader));
 
 		/* Read the spare media header at offset 4096 */
-		mtd->read(mtd, block * inftl->EraseSize + 4096,
-			  SECTORSIZE, &retlen, buf);
+		mtd_read(mtd, block * inftl->EraseSize + 4096, SECTORSIZE,
+			 &retlen, buf);
 		if (retlen != SECTORSIZE) {
 			printk(KERN_WARNING "INFTL: Unable to read spare "
 			       "Media Header\n");
@@ -220,7 +220,7 @@ static int find_boot_record(struct INFTLrecord *inftl)
 				 */
 				instr->addr = ip->Reserved0 * inftl->EraseSize;
 				instr->len = inftl->EraseSize;
-				mtd->erase(mtd, instr);
+				mtd_erase(mtd, instr);
 			}
 			if ((ip->lastUnit - ip->firstUnit + 1) < ip->virtualUnits) {
 				printk(KERN_WARNING "INFTL: Media Header "
@@ -306,7 +306,8 @@ static int find_boot_record(struct INFTLrecord *inftl)
 			/* If any of the physical eraseblocks are bad, don't
 			   use the unit. */
 			for (physblock = 0; physblock < inftl->EraseSize; physblock += inftl->mbd.mtd->erasesize) {
-				if (inftl->mbd.mtd->block_isbad(inftl->mbd.mtd, i * inftl->EraseSize + physblock))
+				if (mtd_block_isbad(inftl->mbd.mtd,
+						    i * inftl->EraseSize + physblock))
 					inftl->PUtable[i] = BLOCK_RESERVED;
 			}
 		}
@@ -342,7 +343,7 @@ static int check_free_sectors(struct INFTLrecord *inftl, unsigned int address,
 	int i;
 
 	for (i = 0; i < len; i += SECTORSIZE) {
-		if (mtd->read(mtd, address, SECTORSIZE, &retlen, buf))
+		if (mtd_read(mtd, address, SECTORSIZE, &retlen, buf))
 			return -1;
 		if (memcmpb(buf, 0xff, SECTORSIZE) != 0)
 			return -1;
@@ -393,7 +394,7 @@ int INFTL_formatblock(struct INFTLrecord *inftl, int block)
 	   mark only the failed block in the bbt. */
 	for (physblock = 0; physblock < inftl->EraseSize;
 	     physblock += instr->len, instr->addr += instr->len) {
-		mtd->erase(inftl->mbd.mtd, instr);
+		mtd_erase(inftl->mbd.mtd, instr);
 
 		if (instr->state == MTD_ERASE_FAILED) {
 			printk(KERN_WARNING "INFTL: error while formatting block %d\n",
@@ -423,7 +424,7 @@ int INFTL_formatblock(struct INFTLrecord *inftl, int block)
 fail:
 	/* could not format, update the bad block table (caller is responsible
 	   for setting the PUtable to BLOCK_RESERVED on failure) */
-	inftl->mbd.mtd->block_markbad(inftl->mbd.mtd, instr->addr);
+	mtd_block_markbad(inftl->mbd.mtd, instr->addr);
 	return -1;
 }
 
diff --git a/drivers/mtd/lpddr/lpddr_cmds.c b/drivers/mtd/lpddr/lpddr_cmds.c
index 1dca31d9a8b3..536bbceaeaad 100644
--- a/drivers/mtd/lpddr/lpddr_cmds.c
+++ b/drivers/mtd/lpddr/lpddr_cmds.c
@@ -70,19 +70,12 @@ struct mtd_info *lpddr_cmdset(struct map_info *map)
 	mtd->erase = lpddr_erase;
 	mtd->write = lpddr_write_buffers;
 	mtd->writev = lpddr_writev;
-	mtd->read_oob = NULL;
-	mtd->write_oob = NULL;
-	mtd->sync = NULL;
 	mtd->lock = lpddr_lock;
 	mtd->unlock = lpddr_unlock;
-	mtd->suspend = NULL;
-	mtd->resume = NULL;
 	if (map_is_linear(map)) {
 		mtd->point = lpddr_point;
 		mtd->unpoint = lpddr_unpoint;
 	}
-	mtd->block_isbad = NULL;
-	mtd->block_markbad = NULL;
 	mtd->size = 1 << lpddr->qinfo->DevSizeShift;
 	mtd->erasesize = 1 << lpddr->qinfo->UniformBlockSizeShift;
 	mtd->writesize = 1 << lpddr->qinfo->BufSizeShift;
diff --git a/drivers/mtd/maps/Kconfig b/drivers/mtd/maps/Kconfig
index 8e0c4bf9f7fb..6c5c431c64af 100644
--- a/drivers/mtd/maps/Kconfig
+++ b/drivers/mtd/maps/Kconfig
@@ -242,15 +242,6 @@ config MTD_NETtel
 	help
 	  Support for flash chips on NETtel/SecureEdge/SnapGear boards.
 
-config MTD_BCM963XX
-        tristate "Map driver for Broadcom BCM963xx boards"
-        depends on BCM63XX
-	select MTD_MAP_BANK_WIDTH_2
-	select MTD_CFI_I1
-        help
-	  Support for parsing CFE image tag and creating MTD partitions on
-	  Broadcom BCM63xx boards.
-
 config MTD_LANTIQ
 	tristate "Lantiq SoC NOR support"
 	depends on LANTIQ
diff --git a/drivers/mtd/maps/Makefile b/drivers/mtd/maps/Makefile
index 45dcb8b14f22..68a9a91d344f 100644
--- a/drivers/mtd/maps/Makefile
+++ b/drivers/mtd/maps/Makefile
@@ -55,6 +55,5 @@ obj-$(CONFIG_MTD_BFIN_ASYNC)	+= bfin-async-flash.o
 obj-$(CONFIG_MTD_RBTX4939)	+= rbtx4939-flash.o
 obj-$(CONFIG_MTD_VMU)		+= vmu-flash.o
 obj-$(CONFIG_MTD_GPIO_ADDR)	+= gpio-addr-flash.o
-obj-$(CONFIG_MTD_BCM963XX)	+= bcm963xx-flash.o
 obj-$(CONFIG_MTD_LATCH_ADDR)	+= latch-addr-flash.o
 obj-$(CONFIG_MTD_LANTIQ)	+= lantiq-flash.o
diff --git a/drivers/mtd/maps/bcm963xx-flash.c b/drivers/mtd/maps/bcm963xx-flash.c
deleted file mode 100644
index 736ca10ca9f1..000000000000
--- a/drivers/mtd/maps/bcm963xx-flash.c
+++ /dev/null
@@ -1,277 +0,0 @@
-/*
- * Copyright © 2006-2008  Florian Fainelli <florian@openwrt.org>
- *			  Mike Albon <malbon@openwrt.org>
- * Copyright © 2009-2010  Daniel Dickinson <openwrt@cshore.neomailbox.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
- */
-
-#include <linux/init.h>
-#include <linux/kernel.h>
-#include <linux/slab.h>
-#include <linux/module.h>
-#include <linux/mtd/map.h>
-#include <linux/mtd/mtd.h>
-#include <linux/mtd/partitions.h>
-#include <linux/vmalloc.h>
-#include <linux/platform_device.h>
-#include <linux/io.h>
-
-#include <asm/mach-bcm63xx/bcm963xx_tag.h>
-
-#define BCM63XX_BUSWIDTH	2		/* Buswidth */
-#define BCM63XX_EXTENDED_SIZE	0xBFC00000	/* Extended flash address */
-
-#define PFX KBUILD_MODNAME ": "
-
-static struct mtd_partition *parsed_parts;
-
-static struct mtd_info *bcm963xx_mtd_info;
-
-static struct map_info bcm963xx_map = {
-	.name		= "bcm963xx",
-	.bankwidth	= BCM63XX_BUSWIDTH,
-};
-
-static int parse_cfe_partitions(struct mtd_info *master,
-						struct mtd_partition **pparts)
-{
-	/* CFE, NVRAM and global Linux are always present */
-	int nrparts = 3, curpart = 0;
-	struct bcm_tag *buf;
-	struct mtd_partition *parts;
-	int ret;
-	size_t retlen;
-	unsigned int rootfsaddr, kerneladdr, spareaddr;
-	unsigned int rootfslen, kernellen, sparelen, totallen;
-	int namelen = 0;
-	int i;
-	char *boardid;
-	char *tagversion;
-
-	/* Allocate memory for buffer */
-	buf = vmalloc(sizeof(struct bcm_tag));
-	if (!buf)
-		return -ENOMEM;
-
-	/* Get the tag */
-	ret = master->read(master, master->erasesize, sizeof(struct bcm_tag),
-							&retlen, (void *)buf);
-	if (retlen != sizeof(struct bcm_tag)) {
-		vfree(buf);
-		return -EIO;
-	}
-
-	sscanf(buf->kernel_address, "%u", &kerneladdr);
-	sscanf(buf->kernel_length, "%u", &kernellen);
-	sscanf(buf->total_length, "%u", &totallen);
-	tagversion = &(buf->tag_version[0]);
-	boardid = &(buf->board_id[0]);
-
-	printk(KERN_INFO PFX "CFE boot tag found with version %s "
-				"and board type %s\n", tagversion, boardid);
-
-	kerneladdr = kerneladdr - BCM63XX_EXTENDED_SIZE;
-	rootfsaddr = kerneladdr + kernellen;
-	spareaddr = roundup(totallen, master->erasesize) + master->erasesize;
-	sparelen = master->size - spareaddr - master->erasesize;
-	rootfslen = spareaddr - rootfsaddr;
-
-	/* Determine number of partitions */
-	namelen = 8;
-	if (rootfslen > 0) {
-		nrparts++;
-		namelen += 6;
-	};
-	if (kernellen > 0) {
-		nrparts++;
-		namelen += 6;
-	};
-
-	/* Ask kernel for more memory */
-	parts = kzalloc(sizeof(*parts) * nrparts + 10 * nrparts, GFP_KERNEL);
-	if (!parts) {
-		vfree(buf);
-		return -ENOMEM;
-	};
-
-	/* Start building partition list */
-	parts[curpart].name = "CFE";
-	parts[curpart].offset = 0;
-	parts[curpart].size = master->erasesize;
-	curpart++;
-
-	if (kernellen > 0) {
-		parts[curpart].name = "kernel";
-		parts[curpart].offset = kerneladdr;
-		parts[curpart].size = kernellen;
-		curpart++;
-	};
-
-	if (rootfslen > 0) {
-		parts[curpart].name = "rootfs";
-		parts[curpart].offset = rootfsaddr;
-		parts[curpart].size = rootfslen;
-		if (sparelen > 0)
-			parts[curpart].size += sparelen;
-		curpart++;
-	};
-
-	parts[curpart].name = "nvram";
-	parts[curpart].offset = master->size - master->erasesize;
-	parts[curpart].size = master->erasesize;
-
-	/* Global partition "linux" to make easy firmware upgrade */
-	curpart++;
-	parts[curpart].name = "linux";
-	parts[curpart].offset = parts[0].size;
-	parts[curpart].size = master->size - parts[0].size - parts[3].size;
-
-	for (i = 0; i < nrparts; i++)
-		printk(KERN_INFO PFX "Partition %d is %s offset %lx and "
-					"length %lx\n", i, parts[i].name,
-					(long unsigned int)(parts[i].offset),
-					(long unsigned int)(parts[i].size));
-
-	printk(KERN_INFO PFX "Spare partition is %x offset and length %x\n",
-							spareaddr, sparelen);
-	*pparts = parts;
-	vfree(buf);
-
-	return nrparts;
-};
-
-static int bcm963xx_detect_cfe(struct mtd_info *master)
-{
-	int idoffset = 0x4e0;
-	static char idstring[8] = "CFE1CFE1";
-	char buf[9];
-	int ret;
-	size_t retlen;
-
-	ret = master->read(master, idoffset, 8, &retlen, (void *)buf);
-	buf[retlen] = 0;
-	printk(KERN_INFO PFX "Read Signature value of %s\n", buf);
-
-	return strncmp(idstring, buf, 8);
-}
-
-static int bcm963xx_probe(struct platform_device *pdev)
-{
-	int err = 0;
-	int parsed_nr_parts = 0;
-	char *part_type;
-	struct resource *r;
-
-	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!r) {
-		dev_err(&pdev->dev, "no resource supplied\n");
-		return -ENODEV;
-	}
-
-	bcm963xx_map.phys = r->start;
-	bcm963xx_map.size = resource_size(r);
-	bcm963xx_map.virt = ioremap(r->start, resource_size(r));
-	if (!bcm963xx_map.virt) {
-		dev_err(&pdev->dev, "failed to ioremap\n");
-		return -EIO;
-	}
-
-	dev_info(&pdev->dev, "0x%08lx at 0x%08x\n",
-					bcm963xx_map.size, bcm963xx_map.phys);
-
-	simple_map_init(&bcm963xx_map);
-
-	bcm963xx_mtd_info = do_map_probe("cfi_probe", &bcm963xx_map);
-	if (!bcm963xx_mtd_info) {
-		dev_err(&pdev->dev, "failed to probe using CFI\n");
-		bcm963xx_mtd_info = do_map_probe("jedec_probe", &bcm963xx_map);
-		if (bcm963xx_mtd_info)
-			goto probe_ok;
-		dev_err(&pdev->dev, "failed to probe using JEDEC\n");
-		err = -EIO;
-		goto err_probe;
-	}
-
-probe_ok:
-	bcm963xx_mtd_info->owner = THIS_MODULE;
-
-	/* This is mutually exclusive */
-	if (bcm963xx_detect_cfe(bcm963xx_mtd_info) == 0) {
-		dev_info(&pdev->dev, "CFE bootloader detected\n");
-		if (parsed_nr_parts == 0) {
-			int ret = parse_cfe_partitions(bcm963xx_mtd_info,
-							&parsed_parts);
-			if (ret > 0) {
-				part_type = "CFE";
-				parsed_nr_parts = ret;
-			}
-		}
-	} else {
-		dev_info(&pdev->dev, "unsupported bootloader\n");
-		err = -ENODEV;
-		goto err_probe;
-	}
-
-	return mtd_device_register(bcm963xx_mtd_info, parsed_parts,
-				   parsed_nr_parts);
-
-err_probe:
-	iounmap(bcm963xx_map.virt);
-	return err;
-}
-
-static int bcm963xx_remove(struct platform_device *pdev)
-{
-	if (bcm963xx_mtd_info) {
-		mtd_device_unregister(bcm963xx_mtd_info);
-		map_destroy(bcm963xx_mtd_info);
-	}
-
-	if (bcm963xx_map.virt) {
-		iounmap(bcm963xx_map.virt);
-		bcm963xx_map.virt = 0;
-	}
-
-	return 0;
-}
-
-static struct platform_driver bcm63xx_mtd_dev = {
-	.probe	= bcm963xx_probe,
-	.remove = bcm963xx_remove,
-	.driver = {
-		.name	= "bcm963xx-flash",
-		.owner	= THIS_MODULE,
-	},
-};
-
-static int __init bcm963xx_mtd_init(void)
-{
-	return platform_driver_register(&bcm63xx_mtd_dev);
-}
-
-static void __exit bcm963xx_mtd_exit(void)
-{
-	platform_driver_unregister(&bcm63xx_mtd_dev);
-}
-
-module_init(bcm963xx_mtd_init);
-module_exit(bcm963xx_mtd_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("Broadcom BCM63xx MTD driver for CFE and RedBoot");
-MODULE_AUTHOR("Daniel Dickinson <openwrt@cshore.neomailbox.net>");
-MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
-MODULE_AUTHOR("Mike Albon <malbon@openwrt.org>");
diff --git a/drivers/mtd/maps/bfin-async-flash.c b/drivers/mtd/maps/bfin-async-flash.c
index 6d6b2b5674ee..650126c361f1 100644
--- a/drivers/mtd/maps/bfin-async-flash.c
+++ b/drivers/mtd/maps/bfin-async-flash.c
@@ -190,17 +190,7 @@ static struct platform_driver bfin_flash_driver = {
 	},
 };
 
-static int __init bfin_flash_init(void)
-{
-	return platform_driver_register(&bfin_flash_driver);
-}
-module_init(bfin_flash_init);
-
-static void __exit bfin_flash_exit(void)
-{
-	platform_driver_unregister(&bfin_flash_driver);
-}
-module_exit(bfin_flash_exit);
+module_platform_driver(bfin_flash_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("MTD map driver for Blackfins with flash/ethernet on same async bank");
diff --git a/drivers/mtd/maps/gpio-addr-flash.c b/drivers/mtd/maps/gpio-addr-flash.c
index 1ec66f031c51..33cce895859f 100644
--- a/drivers/mtd/maps/gpio-addr-flash.c
+++ b/drivers/mtd/maps/gpio-addr-flash.c
@@ -279,17 +279,7 @@ static struct platform_driver gpio_flash_driver = {
 	},
 };
 
-static int __init gpio_flash_init(void)
-{
-	return platform_driver_register(&gpio_flash_driver);
-}
-module_init(gpio_flash_init);
-
-static void __exit gpio_flash_exit(void)
-{
-	platform_driver_unregister(&gpio_flash_driver);
-}
-module_exit(gpio_flash_exit);
+module_platform_driver(gpio_flash_driver);
 
 MODULE_AUTHOR("Mike Frysinger <vapier@gentoo.org>");
 MODULE_DESCRIPTION("MTD map driver for flashes addressed physically and with gpios");
diff --git a/drivers/mtd/maps/ixp2000.c b/drivers/mtd/maps/ixp2000.c
index 437fcd2f352f..fc7d4d0d9a4e 100644
--- a/drivers/mtd/maps/ixp2000.c
+++ b/drivers/mtd/maps/ixp2000.c
@@ -246,18 +246,8 @@ static struct platform_driver ixp2000_flash_driver = {
 	},
 };
 
-static int __init ixp2000_flash_init(void)
-{
-	return platform_driver_register(&ixp2000_flash_driver);
-}
-
-static void __exit ixp2000_flash_exit(void)
-{
-	platform_driver_unregister(&ixp2000_flash_driver);
-}
+module_platform_driver(ixp2000_flash_driver);
 
-module_init(ixp2000_flash_init);
-module_exit(ixp2000_flash_exit);
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Deepak Saxena <dsaxena@plexity.net>");
 MODULE_ALIAS("platform:IXP2000-Flash");
diff --git a/drivers/mtd/maps/ixp4xx.c b/drivers/mtd/maps/ixp4xx.c
index 30409015a3de..8b5410162d70 100644
--- a/drivers/mtd/maps/ixp4xx.c
+++ b/drivers/mtd/maps/ixp4xx.c
@@ -270,19 +270,7 @@ static struct platform_driver ixp4xx_flash_driver = {
 	},
 };
 
-static int __init ixp4xx_flash_init(void)
-{
-	return platform_driver_register(&ixp4xx_flash_driver);
-}
-
-static void __exit ixp4xx_flash_exit(void)
-{
-	platform_driver_unregister(&ixp4xx_flash_driver);
-}
-
-
-module_init(ixp4xx_flash_init);
-module_exit(ixp4xx_flash_exit);
+module_platform_driver(ixp4xx_flash_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("MTD map driver for Intel IXP4xx systems");
diff --git a/drivers/mtd/maps/lantiq-flash.c b/drivers/mtd/maps/lantiq-flash.c
index 4f10e27ada55..7b889de9477b 100644
--- a/drivers/mtd/maps/lantiq-flash.c
+++ b/drivers/mtd/maps/lantiq-flash.c
@@ -159,7 +159,7 @@ ltq_mtd_probe(struct platform_device *pdev)
 	if (!ltq_mtd->mtd) {
 		dev_err(&pdev->dev, "probing failed\n");
 		err = -ENXIO;
-		goto err_unmap;
+		goto err_free;
 	}
 
 	ltq_mtd->mtd->owner = THIS_MODULE;
@@ -179,8 +179,6 @@ ltq_mtd_probe(struct platform_device *pdev)
 
 err_destroy:
 	map_destroy(ltq_mtd->mtd);
-err_unmap:
-	iounmap(ltq_mtd->map->virt);
 err_free:
 	kfree(ltq_mtd->map);
 err_out:
@@ -198,8 +196,6 @@ ltq_mtd_remove(struct platform_device *pdev)
 			mtd_device_unregister(ltq_mtd->mtd);
 			map_destroy(ltq_mtd->mtd);
 		}
-		if (ltq_mtd->map->virt)
-			iounmap(ltq_mtd->map->virt);
 		kfree(ltq_mtd->map);
 		kfree(ltq_mtd);
 	}
diff --git a/drivers/mtd/maps/latch-addr-flash.c b/drivers/mtd/maps/latch-addr-flash.c
index 119baa7d7477..8fed58e3a4a8 100644
--- a/drivers/mtd/maps/latch-addr-flash.c
+++ b/drivers/mtd/maps/latch-addr-flash.c
@@ -223,17 +223,7 @@ static struct platform_driver latch_addr_flash_driver = {
 	},
 };
 
-static int __init latch_addr_flash_init(void)
-{
-	return platform_driver_register(&latch_addr_flash_driver);
-}
-module_init(latch_addr_flash_init);
-
-static void __exit latch_addr_flash_exit(void)
-{
-	platform_driver_unregister(&latch_addr_flash_driver);
-}
-module_exit(latch_addr_flash_exit);
+module_platform_driver(latch_addr_flash_driver);
 
 MODULE_AUTHOR("David Griego <dgriego@mvista.com>");
 MODULE_DESCRIPTION("MTD map driver for flashes addressed physically with upper "
diff --git a/drivers/mtd/maps/physmap.c b/drivers/mtd/maps/physmap.c
index 66e8200079c2..abc562653b31 100644
--- a/drivers/mtd/maps/physmap.c
+++ b/drivers/mtd/maps/physmap.c
@@ -85,6 +85,7 @@ static int physmap_flash_probe(struct platform_device *dev)
 	struct physmap_flash_data *physmap_data;
 	struct physmap_flash_info *info;
 	const char **probe_type;
+	const char **part_types;
 	int err = 0;
 	int i;
 	int devices_found = 0;
@@ -171,7 +172,9 @@ static int physmap_flash_probe(struct platform_device *dev)
 	if (err)
 		goto err_out;
 
-	mtd_device_parse_register(info->cmtd, part_probe_types, 0,
+	part_types = physmap_data->part_probe_types ? : part_probe_types;
+
+	mtd_device_parse_register(info->cmtd, part_types, 0,
 				  physmap_data->parts, physmap_data->nr_parts);
 	return 0;
 
@@ -187,9 +190,8 @@ static void physmap_flash_shutdown(struct platform_device *dev)
 	int i;
 
 	for (i = 0; i < MAX_RESOURCES && info->mtd[i]; i++)
-		if (info->mtd[i]->suspend && info->mtd[i]->resume)
-			if (info->mtd[i]->suspend(info->mtd[i]) == 0)
-				info->mtd[i]->resume(info->mtd[i]);
+		if (mtd_suspend(info->mtd[i]) == 0)
+			mtd_resume(info->mtd[i]);
 }
 #else
 #define physmap_flash_shutdown NULL
diff --git a/drivers/mtd/maps/physmap_of.c b/drivers/mtd/maps/physmap_of.c
index 7d65f9d3e690..2e6fb6831d55 100644
--- a/drivers/mtd/maps/physmap_of.c
+++ b/drivers/mtd/maps/physmap_of.c
@@ -338,18 +338,7 @@ static struct platform_driver of_flash_driver = {
 	.remove		= of_flash_remove,
 };
 
-static int __init of_flash_init(void)
-{
-	return platform_driver_register(&of_flash_driver);
-}
-
-static void __exit of_flash_exit(void)
-{
-	platform_driver_unregister(&of_flash_driver);
-}
-
-module_init(of_flash_init);
-module_exit(of_flash_exit);
+module_platform_driver(of_flash_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Vitaly Wool <vwool@ru.mvista.com>");
diff --git a/drivers/mtd/maps/pxa2xx-flash.c b/drivers/mtd/maps/pxa2xx-flash.c
index 2a25b6789af4..436d121185b1 100644
--- a/drivers/mtd/maps/pxa2xx-flash.c
+++ b/drivers/mtd/maps/pxa2xx-flash.c
@@ -125,8 +125,8 @@ static void pxa2xx_flash_shutdown(struct platform_device *dev)
 {
 	struct pxa2xx_flash_info *info = platform_get_drvdata(dev);
 
-	if (info && info->mtd->suspend(info->mtd) == 0)
-		info->mtd->resume(info->mtd);
+	if (info && mtd_suspend(info->mtd) == 0)
+		mtd_resume(info->mtd);
 }
 #else
 #define pxa2xx_flash_shutdown NULL
@@ -142,18 +142,7 @@ static struct platform_driver pxa2xx_flash_driver = {
 	.shutdown	= pxa2xx_flash_shutdown,
 };
 
-static int __init init_pxa2xx_flash(void)
-{
-	return platform_driver_register(&pxa2xx_flash_driver);
-}
-
-static void __exit cleanup_pxa2xx_flash(void)
-{
-	platform_driver_unregister(&pxa2xx_flash_driver);
-}
-
-module_init(init_pxa2xx_flash);
-module_exit(cleanup_pxa2xx_flash);
+module_platform_driver(pxa2xx_flash_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Nicolas Pitre <nico@fluxnic.net>");
diff --git a/drivers/mtd/maps/rbtx4939-flash.c b/drivers/mtd/maps/rbtx4939-flash.c
index 0237f197fd12..3da63fc6f16e 100644
--- a/drivers/mtd/maps/rbtx4939-flash.c
+++ b/drivers/mtd/maps/rbtx4939-flash.c
@@ -119,9 +119,8 @@ static void rbtx4939_flash_shutdown(struct platform_device *dev)
 {
 	struct rbtx4939_flash_info *info = platform_get_drvdata(dev);
 
-	if (info->mtd->suspend && info->mtd->resume)
-		if (info->mtd->suspend(info->mtd) == 0)
-			info->mtd->resume(info->mtd);
+	if (mtd_suspend(info->mtd) == 0)
+		mtd_resume(info->mtd);
 }
 #else
 #define rbtx4939_flash_shutdown NULL
@@ -137,18 +136,7 @@ static struct platform_driver rbtx4939_flash_driver = {
 	},
 };
 
-static int __init rbtx4939_flash_init(void)
-{
-	return platform_driver_register(&rbtx4939_flash_driver);
-}
-
-static void __exit rbtx4939_flash_exit(void)
-{
-	platform_driver_unregister(&rbtx4939_flash_driver);
-}
-
-module_init(rbtx4939_flash_init);
-module_exit(rbtx4939_flash_exit);
+module_platform_driver(rbtx4939_flash_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("RBTX4939 MTD map driver");
diff --git a/drivers/mtd/maps/sa1100-flash.c b/drivers/mtd/maps/sa1100-flash.c
index fa9c0a9670cd..502821997707 100644
--- a/drivers/mtd/maps/sa1100-flash.c
+++ b/drivers/mtd/maps/sa1100-flash.c
@@ -377,8 +377,8 @@ static int __exit sa1100_mtd_remove(struct platform_device *pdev)
 static void sa1100_mtd_shutdown(struct platform_device *dev)
 {
 	struct sa_info *info = platform_get_drvdata(dev);
-	if (info && info->mtd->suspend(info->mtd) == 0)
-		info->mtd->resume(info->mtd);
+	if (info && mtd_suspend(info->mtd) == 0)
+		mtd_resume(info->mtd);
 }
 #else
 #define sa1100_mtd_shutdown NULL
@@ -394,18 +394,7 @@ static struct platform_driver sa1100_mtd_driver = {
 	},
 };
 
-static int __init sa1100_mtd_init(void)
-{
-	return platform_driver_register(&sa1100_mtd_driver);
-}
-
-static void __exit sa1100_mtd_exit(void)
-{
-	platform_driver_unregister(&sa1100_mtd_driver);
-}
-
-module_init(sa1100_mtd_init);
-module_exit(sa1100_mtd_exit);
+module_platform_driver(sa1100_mtd_driver);
 
 MODULE_AUTHOR("Nicolas Pitre");
 MODULE_DESCRIPTION("SA1100 CFI map driver");
diff --git a/drivers/mtd/maps/scb2_flash.c b/drivers/mtd/maps/scb2_flash.c
index d88c8426bb0f..934a72c80078 100644
--- a/drivers/mtd/maps/scb2_flash.c
+++ b/drivers/mtd/maps/scb2_flash.c
@@ -204,8 +204,7 @@ scb2_flash_remove(struct pci_dev *dev)
 		return;
 
 	/* disable flash writes */
-	if (scb2_mtd->lock)
-		scb2_mtd->lock(scb2_mtd, 0, scb2_mtd->size);
+	mtd_lock(scb2_mtd, 0, scb2_mtd->size);
 
 	mtd_device_unregister(scb2_mtd);
 	map_destroy(scb2_mtd);
diff --git a/drivers/mtd/maps/sun_uflash.c b/drivers/mtd/maps/sun_uflash.c
index 2d66234f57cb..175e537b444f 100644
--- a/drivers/mtd/maps/sun_uflash.c
+++ b/drivers/mtd/maps/sun_uflash.c
@@ -158,15 +158,4 @@ static struct platform_driver uflash_driver = {
 	.remove		= __devexit_p(uflash_remove),
 };
 
-static int __init uflash_init(void)
-{
-	return platform_driver_register(&uflash_driver);
-}
-
-static void __exit uflash_exit(void)
-{
-	platform_driver_unregister(&uflash_driver);
-}
-
-module_init(uflash_init);
-module_exit(uflash_exit);
+module_platform_driver(uflash_driver);
diff --git a/drivers/mtd/mtd_blkdevs.c b/drivers/mtd/mtd_blkdevs.c
index ed8b5e744b12..424ca5f93c6c 100644
--- a/drivers/mtd/mtd_blkdevs.c
+++ b/drivers/mtd/mtd_blkdevs.c
@@ -215,7 +215,7 @@ static int blktrans_open(struct block_device *bdev, fmode_t mode)
 
 	mutex_lock(&dev->lock);
 
-	if (dev->open++)
+	if (dev->open)
 		goto unlock;
 
 	kref_get(&dev->ref);
@@ -235,6 +235,7 @@ static int blktrans_open(struct block_device *bdev, fmode_t mode)
 		goto error_release;
 
 unlock:
+	dev->open++;
 	mutex_unlock(&dev->lock);
 	blktrans_dev_put(dev);
 	return ret;
diff --git a/drivers/mtd/mtdblock.c b/drivers/mtd/mtdblock.c
index 7c1dc908a174..af6591237b9b 100644
--- a/drivers/mtd/mtdblock.c
+++ b/drivers/mtd/mtdblock.c
@@ -85,7 +85,7 @@ static int erase_write (struct mtd_info *mtd, unsigned long pos,
 	set_current_state(TASK_INTERRUPTIBLE);
 	add_wait_queue(&wait_q, &wait);
 
-	ret = mtd->erase(mtd, &erase);
+	ret = mtd_erase(mtd, &erase);
 	if (ret) {
 		set_current_state(TASK_RUNNING);
 		remove_wait_queue(&wait_q, &wait);
@@ -102,7 +102,7 @@ static int erase_write (struct mtd_info *mtd, unsigned long pos,
 	 * Next, write the data to flash.
 	 */
 
-	ret = mtd->write(mtd, pos, len, &retlen, buf);
+	ret = mtd_write(mtd, pos, len, &retlen, buf);
 	if (ret)
 		return ret;
 	if (retlen != len)
@@ -152,7 +152,7 @@ static int do_cached_write (struct mtdblk_dev *mtdblk, unsigned long pos,
 		mtd->name, pos, len);
 
 	if (!sect_size)
-		return mtd->write(mtd, pos, len, &retlen, buf);
+		return mtd_write(mtd, pos, len, &retlen, buf);
 
 	while (len > 0) {
 		unsigned long sect_start = (pos/sect_size)*sect_size;
@@ -184,8 +184,8 @@ static int do_cached_write (struct mtdblk_dev *mtdblk, unsigned long pos,
 			    mtdblk->cache_offset != sect_start) {
 				/* fill the cache with the current sector */
 				mtdblk->cache_state = STATE_EMPTY;
-				ret = mtd->read(mtd, sect_start, sect_size,
-						&retlen, mtdblk->cache_data);
+				ret = mtd_read(mtd, sect_start, sect_size,
+					       &retlen, mtdblk->cache_data);
 				if (ret)
 					return ret;
 				if (retlen != sect_size)
@@ -222,7 +222,7 @@ static int do_cached_read (struct mtdblk_dev *mtdblk, unsigned long pos,
 			mtd->name, pos, len);
 
 	if (!sect_size)
-		return mtd->read(mtd, pos, len, &retlen, buf);
+		return mtd_read(mtd, pos, len, &retlen, buf);
 
 	while (len > 0) {
 		unsigned long sect_start = (pos/sect_size)*sect_size;
@@ -241,7 +241,7 @@ static int do_cached_read (struct mtdblk_dev *mtdblk, unsigned long pos,
 		    mtdblk->cache_offset == sect_start) {
 			memcpy (buf, mtdblk->cache_data + offset, size);
 		} else {
-			ret = mtd->read(mtd, pos, size, &retlen, buf);
+			ret = mtd_read(mtd, pos, size, &retlen, buf);
 			if (ret)
 				return ret;
 			if (retlen != size)
@@ -322,8 +322,7 @@ static int mtdblock_release(struct mtd_blktrans_dev *mbd)
 
 	if (!--mtdblk->count) {
 		/* It was the last usage. Free the cache */
-		if (mbd->mtd->sync)
-			mbd->mtd->sync(mbd->mtd);
+		mtd_sync(mbd->mtd);
 		vfree(mtdblk->cache_data);
 	}
 
@@ -341,9 +340,7 @@ static int mtdblock_flush(struct mtd_blktrans_dev *dev)
 	mutex_lock(&mtdblk->cache_mutex);
 	write_cached_data(mtdblk);
 	mutex_unlock(&mtdblk->cache_mutex);
-
-	if (dev->mtd->sync)
-		dev->mtd->sync(dev->mtd);
+	mtd_sync(dev->mtd);
 	return 0;
 }
 
diff --git a/drivers/mtd/mtdblock_ro.c b/drivers/mtd/mtdblock_ro.c
index 0470a6e86309..92759a9d2985 100644
--- a/drivers/mtd/mtdblock_ro.c
+++ b/drivers/mtd/mtdblock_ro.c
@@ -30,7 +30,7 @@ static int mtdblock_readsect(struct mtd_blktrans_dev *dev,
 {
 	size_t retlen;
 
-	if (dev->mtd->read(dev->mtd, (block * 512), 512, &retlen, buf))
+	if (mtd_read(dev->mtd, (block * 512), 512, &retlen, buf))
 		return 1;
 	return 0;
 }
@@ -40,7 +40,7 @@ static int mtdblock_writesect(struct mtd_blktrans_dev *dev,
 {
 	size_t retlen;
 
-	if (dev->mtd->write(dev->mtd, (block * 512), 512, &retlen, buf))
+	if (mtd_write(dev->mtd, (block * 512), 512, &retlen, buf))
 		return 1;
 	return 0;
 }
diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c
index e7dc732ddabc..50c6a1e7f675 100644
--- a/drivers/mtd/mtdchar.c
+++ b/drivers/mtd/mtdchar.c
@@ -51,7 +51,7 @@ struct mtd_file_info {
 	enum mtd_file_modes mode;
 };
 
-static loff_t mtd_lseek (struct file *file, loff_t offset, int orig)
+static loff_t mtdchar_lseek(struct file *file, loff_t offset, int orig)
 {
 	struct mtd_file_info *mfi = file->private_data;
 	struct mtd_info *mtd = mfi->mtd;
@@ -77,7 +77,7 @@ static loff_t mtd_lseek (struct file *file, loff_t offset, int orig)
 
 
 
-static int mtd_open(struct inode *inode, struct file *file)
+static int mtdchar_open(struct inode *inode, struct file *file)
 {
 	int minor = iminor(inode);
 	int devnum = minor >> 1;
@@ -142,11 +142,11 @@ static int mtd_open(struct inode *inode, struct file *file)
 out:
 	mutex_unlock(&mtd_mutex);
 	return ret;
-} /* mtd_open */
+} /* mtdchar_open */
 
 /*====================================================================*/
 
-static int mtd_close(struct inode *inode, struct file *file)
+static int mtdchar_close(struct inode *inode, struct file *file)
 {
 	struct mtd_file_info *mfi = file->private_data;
 	struct mtd_info *mtd = mfi->mtd;
@@ -154,8 +154,8 @@ static int mtd_close(struct inode *inode, struct file *file)
 	pr_debug("MTD_close\n");
 
 	/* Only sync if opened RW */
-	if ((file->f_mode & FMODE_WRITE) && mtd->sync)
-		mtd->sync(mtd);
+	if ((file->f_mode & FMODE_WRITE))
+		mtd_sync(mtd);
 
 	iput(mfi->ino);
 
@@ -164,7 +164,7 @@ static int mtd_close(struct inode *inode, struct file *file)
 	kfree(mfi);
 
 	return 0;
-} /* mtd_close */
+} /* mtdchar_close */
 
 /* Back in June 2001, dwmw2 wrote:
  *
@@ -184,11 +184,12 @@ static int mtd_close(struct inode *inode, struct file *file)
  * alignment requirements are not met in the NAND subdriver.
  */
 
-static ssize_t mtd_read(struct file *file, char __user *buf, size_t count,loff_t *ppos)
+static ssize_t mtdchar_read(struct file *file, char __user *buf, size_t count,
+			loff_t *ppos)
 {
 	struct mtd_file_info *mfi = file->private_data;
 	struct mtd_info *mtd = mfi->mtd;
-	size_t retlen=0;
+	size_t retlen;
 	size_t total_retlen=0;
 	int ret=0;
 	int len;
@@ -212,10 +213,12 @@ static ssize_t mtd_read(struct file *file, char __user *buf, size_t count,loff_t
 
 		switch (mfi->mode) {
 		case MTD_FILE_MODE_OTP_FACTORY:
-			ret = mtd->read_fact_prot_reg(mtd, *ppos, len, &retlen, kbuf);
+			ret = mtd_read_fact_prot_reg(mtd, *ppos, len,
+						     &retlen, kbuf);
 			break;
 		case MTD_FILE_MODE_OTP_USER:
-			ret = mtd->read_user_prot_reg(mtd, *ppos, len, &retlen, kbuf);
+			ret = mtd_read_user_prot_reg(mtd, *ppos, len,
+						     &retlen, kbuf);
 			break;
 		case MTD_FILE_MODE_RAW:
 		{
@@ -226,12 +229,12 @@ static ssize_t mtd_read(struct file *file, char __user *buf, size_t count,loff_t
 			ops.oobbuf = NULL;
 			ops.len = len;
 
-			ret = mtd->read_oob(mtd, *ppos, &ops);
+			ret = mtd_read_oob(mtd, *ppos, &ops);
 			retlen = ops.retlen;
 			break;
 		}
 		default:
-			ret = mtd->read(mtd, *ppos, len, &retlen, kbuf);
+			ret = mtd_read(mtd, *ppos, len, &retlen, kbuf);
 		}
 		/* Nand returns -EBADMSG on ECC errors, but it returns
 		 * the data. For our userspace tools it is important
@@ -265,9 +268,10 @@ static ssize_t mtd_read(struct file *file, char __user *buf, size_t count,loff_t
 
 	kfree(kbuf);
 	return total_retlen;
-} /* mtd_read */
+} /* mtdchar_read */
 
-static ssize_t mtd_write(struct file *file, const char __user *buf, size_t count,loff_t *ppos)
+static ssize_t mtdchar_write(struct file *file, const char __user *buf, size_t count,
+			loff_t *ppos)
 {
 	struct mtd_file_info *mfi = file->private_data;
 	struct mtd_info *mtd = mfi->mtd;
@@ -306,11 +310,8 @@ static ssize_t mtd_write(struct file *file, const char __user *buf, size_t count
 			ret = -EROFS;
 			break;
 		case MTD_FILE_MODE_OTP_USER:
-			if (!mtd->write_user_prot_reg) {
-				ret = -EOPNOTSUPP;
-				break;
-			}
-			ret = mtd->write_user_prot_reg(mtd, *ppos, len, &retlen, kbuf);
+			ret = mtd_write_user_prot_reg(mtd, *ppos, len,
+						      &retlen, kbuf);
 			break;
 
 		case MTD_FILE_MODE_RAW:
@@ -323,13 +324,13 @@ static ssize_t mtd_write(struct file *file, const char __user *buf, size_t count
 			ops.ooboffs = 0;
 			ops.len = len;
 
-			ret = mtd->write_oob(mtd, *ppos, &ops);
+			ret = mtd_write_oob(mtd, *ppos, &ops);
 			retlen = ops.retlen;
 			break;
 		}
 
 		default:
-			ret = (*(mtd->write))(mtd, *ppos, len, &retlen, kbuf);
+			ret = mtd_write(mtd, *ppos, len, &retlen, kbuf);
 		}
 		if (!ret) {
 			*ppos += retlen;
@@ -345,7 +346,7 @@ static ssize_t mtd_write(struct file *file, const char __user *buf, size_t count
 
 	kfree(kbuf);
 	return total_retlen;
-} /* mtd_write */
+} /* mtdchar_write */
 
 /*======================================================================
 
@@ -361,20 +362,22 @@ static void mtdchar_erase_callback (struct erase_info *instr)
 static int otp_select_filemode(struct mtd_file_info *mfi, int mode)
 {
 	struct mtd_info *mtd = mfi->mtd;
+	size_t retlen;
 	int ret = 0;
 
+	/*
+	 * Make a fake call to mtd_read_fact_prot_reg() to check if OTP
+	 * operations are supported.
+	 */
+	if (mtd_read_fact_prot_reg(mtd, -1, -1, &retlen, NULL) == -EOPNOTSUPP)
+		return -EOPNOTSUPP;
+
 	switch (mode) {
 	case MTD_OTP_FACTORY:
-		if (!mtd->read_fact_prot_reg)
-			ret = -EOPNOTSUPP;
-		else
-			mfi->mode = MTD_FILE_MODE_OTP_FACTORY;
+		mfi->mode = MTD_FILE_MODE_OTP_FACTORY;
 		break;
 	case MTD_OTP_USER:
-		if (!mtd->read_fact_prot_reg)
-			ret = -EOPNOTSUPP;
-		else
-			mfi->mode = MTD_FILE_MODE_OTP_USER;
+		mfi->mode = MTD_FILE_MODE_OTP_USER;
 		break;
 	default:
 		ret = -EINVAL;
@@ -387,7 +390,7 @@ static int otp_select_filemode(struct mtd_file_info *mfi, int mode)
 # define otp_select_filemode(f,m)	-EOPNOTSUPP
 #endif
 
-static int mtd_do_writeoob(struct file *file, struct mtd_info *mtd,
+static int mtdchar_writeoob(struct file *file, struct mtd_info *mtd,
 	uint64_t start, uint32_t length, void __user *ptr,
 	uint32_t __user *retp)
 {
@@ -424,7 +427,7 @@ static int mtd_do_writeoob(struct file *file, struct mtd_info *mtd,
 		return PTR_ERR(ops.oobbuf);
 
 	start &= ~((uint64_t)mtd->writesize - 1);
-	ret = mtd->write_oob(mtd, start, &ops);
+	ret = mtd_write_oob(mtd, start, &ops);
 
 	if (ops.oobretlen > 0xFFFFFFFFU)
 		ret = -EOVERFLOW;
@@ -436,7 +439,7 @@ static int mtd_do_writeoob(struct file *file, struct mtd_info *mtd,
 	return ret;
 }
 
-static int mtd_do_readoob(struct file *file, struct mtd_info *mtd,
+static int mtdchar_readoob(struct file *file, struct mtd_info *mtd,
 	uint64_t start, uint32_t length, void __user *ptr,
 	uint32_t __user *retp)
 {
@@ -447,13 +450,8 @@ static int mtd_do_readoob(struct file *file, struct mtd_info *mtd,
 	if (length > 4096)
 		return -EINVAL;
 
-	if (!mtd->read_oob)
-		ret = -EOPNOTSUPP;
-	else
-		ret = access_ok(VERIFY_WRITE, ptr,
-				length) ? 0 : -EFAULT;
-	if (ret)
-		return ret;
+	if (!access_ok(VERIFY_WRITE, ptr, length))
+		return -EFAULT;
 
 	ops.ooblen = length;
 	ops.ooboffs = start & (mtd->writesize - 1);
@@ -469,7 +467,7 @@ static int mtd_do_readoob(struct file *file, struct mtd_info *mtd,
 		return -ENOMEM;
 
 	start &= ~((uint64_t)mtd->writesize - 1);
-	ret = mtd->read_oob(mtd, start, &ops);
+	ret = mtd_read_oob(mtd, start, &ops);
 
 	if (put_user(ops.oobretlen, retp))
 		ret = -EFAULT;
@@ -530,7 +528,7 @@ static int shrink_ecclayout(const struct nand_ecclayout *from,
 	return 0;
 }
 
-static int mtd_blkpg_ioctl(struct mtd_info *mtd,
+static int mtdchar_blkpg_ioctl(struct mtd_info *mtd,
 			   struct blkpg_ioctl_arg __user *arg)
 {
 	struct blkpg_ioctl_arg a;
@@ -566,7 +564,7 @@ static int mtd_blkpg_ioctl(struct mtd_info *mtd,
 	}
 }
 
-static int mtd_write_ioctl(struct mtd_info *mtd,
+static int mtdchar_write_ioctl(struct mtd_info *mtd,
 		struct mtd_write_req __user *argp)
 {
 	struct mtd_write_req req;
@@ -607,7 +605,7 @@ static int mtd_write_ioctl(struct mtd_info *mtd,
 		ops.oobbuf = NULL;
 	}
 
-	ret = mtd->write_oob(mtd, (loff_t)req.start, &ops);
+	ret = mtd_write_oob(mtd, (loff_t)req.start, &ops);
 
 	kfree(ops.datbuf);
 	kfree(ops.oobbuf);
@@ -615,7 +613,7 @@ static int mtd_write_ioctl(struct mtd_info *mtd,
 	return ret;
 }
 
-static int mtd_ioctl(struct file *file, u_int cmd, u_long arg)
+static int mtdchar_ioctl(struct file *file, u_int cmd, u_long arg)
 {
 	struct mtd_file_info *mfi = file->private_data;
 	struct mtd_info *mtd = mfi->mtd;
@@ -729,7 +727,7 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg)
 			  wq_head is no longer there when the
 			  callback routine tries to wake us up.
 			*/
-			ret = mtd->erase(mtd, erase);
+			ret = mtd_erase(mtd, erase);
 			if (!ret) {
 				set_current_state(TASK_UNINTERRUPTIBLE);
 				add_wait_queue(&waitq, &wait);
@@ -755,7 +753,7 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg)
 		if (copy_from_user(&buf, argp, sizeof(buf)))
 			ret = -EFAULT;
 		else
-			ret = mtd_do_writeoob(file, mtd, buf.start, buf.length,
+			ret = mtdchar_writeoob(file, mtd, buf.start, buf.length,
 				buf.ptr, &buf_user->length);
 		break;
 	}
@@ -769,7 +767,7 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg)
 		if (copy_from_user(&buf, argp, sizeof(buf)))
 			ret = -EFAULT;
 		else
-			ret = mtd_do_readoob(file, mtd, buf.start, buf.length,
+			ret = mtdchar_readoob(file, mtd, buf.start, buf.length,
 				buf.ptr, &buf_user->start);
 		break;
 	}
@@ -782,7 +780,7 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg)
 		if (copy_from_user(&buf, argp, sizeof(buf)))
 			ret = -EFAULT;
 		else
-			ret = mtd_do_writeoob(file, mtd, buf.start, buf.length,
+			ret = mtdchar_writeoob(file, mtd, buf.start, buf.length,
 				(void __user *)(uintptr_t)buf.usr_ptr,
 				&buf_user->length);
 		break;
@@ -796,7 +794,7 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg)
 		if (copy_from_user(&buf, argp, sizeof(buf)))
 			ret = -EFAULT;
 		else
-			ret = mtd_do_readoob(file, mtd, buf.start, buf.length,
+			ret = mtdchar_readoob(file, mtd, buf.start, buf.length,
 				(void __user *)(uintptr_t)buf.usr_ptr,
 				&buf_user->length);
 		break;
@@ -804,7 +802,7 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg)
 
 	case MEMWRITE:
 	{
-		ret = mtd_write_ioctl(mtd,
+		ret = mtdchar_write_ioctl(mtd,
 		      (struct mtd_write_req __user *)arg);
 		break;
 	}
@@ -816,10 +814,7 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg)
 		if (copy_from_user(&einfo, argp, sizeof(einfo)))
 			return -EFAULT;
 
-		if (!mtd->lock)
-			ret = -EOPNOTSUPP;
-		else
-			ret = mtd->lock(mtd, einfo.start, einfo.length);
+		ret = mtd_lock(mtd, einfo.start, einfo.length);
 		break;
 	}
 
@@ -830,10 +825,7 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg)
 		if (copy_from_user(&einfo, argp, sizeof(einfo)))
 			return -EFAULT;
 
-		if (!mtd->unlock)
-			ret = -EOPNOTSUPP;
-		else
-			ret = mtd->unlock(mtd, einfo.start, einfo.length);
+		ret = mtd_unlock(mtd, einfo.start, einfo.length);
 		break;
 	}
 
@@ -844,10 +836,7 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg)
 		if (copy_from_user(&einfo, argp, sizeof(einfo)))
 			return -EFAULT;
 
-		if (!mtd->is_locked)
-			ret = -EOPNOTSUPP;
-		else
-			ret = mtd->is_locked(mtd, einfo.start, einfo.length);
+		ret = mtd_is_locked(mtd, einfo.start, einfo.length);
 		break;
 	}
 
@@ -878,10 +867,7 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg)
 
 		if (copy_from_user(&offs, argp, sizeof(loff_t)))
 			return -EFAULT;
-		if (!mtd->block_isbad)
-			ret = -EOPNOTSUPP;
-		else
-			return mtd->block_isbad(mtd, offs);
+		return mtd_block_isbad(mtd, offs);
 		break;
 	}
 
@@ -891,10 +877,7 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg)
 
 		if (copy_from_user(&offs, argp, sizeof(loff_t)))
 			return -EFAULT;
-		if (!mtd->block_markbad)
-			ret = -EOPNOTSUPP;
-		else
-			return mtd->block_markbad(mtd, offs);
+		return mtd_block_markbad(mtd, offs);
 		break;
 	}
 
@@ -919,17 +902,15 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg)
 		struct otp_info *buf = kmalloc(4096, GFP_KERNEL);
 		if (!buf)
 			return -ENOMEM;
-		ret = -EOPNOTSUPP;
 		switch (mfi->mode) {
 		case MTD_FILE_MODE_OTP_FACTORY:
-			if (mtd->get_fact_prot_info)
-				ret = mtd->get_fact_prot_info(mtd, buf, 4096);
+			ret = mtd_get_fact_prot_info(mtd, buf, 4096);
 			break;
 		case MTD_FILE_MODE_OTP_USER:
-			if (mtd->get_user_prot_info)
-				ret = mtd->get_user_prot_info(mtd, buf, 4096);
+			ret = mtd_get_user_prot_info(mtd, buf, 4096);
 			break;
 		default:
+			ret = -EINVAL;
 			break;
 		}
 		if (ret >= 0) {
@@ -953,9 +934,7 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg)
 			return -EINVAL;
 		if (copy_from_user(&oinfo, argp, sizeof(oinfo)))
 			return -EFAULT;
-		if (!mtd->lock_user_prot_reg)
-			return -EOPNOTSUPP;
-		ret = mtd->lock_user_prot_reg(mtd, oinfo.start, oinfo.length);
+		ret = mtd_lock_user_prot_reg(mtd, oinfo.start, oinfo.length);
 		break;
 	}
 #endif
@@ -999,7 +978,7 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg)
 			break;
 
 		case MTD_FILE_MODE_RAW:
-			if (!mtd->read_oob || !mtd->write_oob)
+			if (!mtd_has_oob(mtd))
 				return -EOPNOTSUPP;
 			mfi->mode = arg;
 
@@ -1014,7 +993,7 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg)
 
 	case BLKPG:
 	{
-		ret = mtd_blkpg_ioctl(mtd,
+		ret = mtdchar_blkpg_ioctl(mtd,
 		      (struct blkpg_ioctl_arg __user *)arg);
 		break;
 	}
@@ -1033,12 +1012,12 @@ static int mtd_ioctl(struct file *file, u_int cmd, u_long arg)
 	return ret;
 } /* memory_ioctl */
 
-static long mtd_unlocked_ioctl(struct file *file, u_int cmd, u_long arg)
+static long mtdchar_unlocked_ioctl(struct file *file, u_int cmd, u_long arg)
 {
 	int ret;
 
 	mutex_lock(&mtd_mutex);
-	ret = mtd_ioctl(file, cmd, arg);
+	ret = mtdchar_ioctl(file, cmd, arg);
 	mutex_unlock(&mtd_mutex);
 
 	return ret;
@@ -1055,7 +1034,7 @@ struct mtd_oob_buf32 {
 #define MEMWRITEOOB32		_IOWR('M', 3, struct mtd_oob_buf32)
 #define MEMREADOOB32		_IOWR('M', 4, struct mtd_oob_buf32)
 
-static long mtd_compat_ioctl(struct file *file, unsigned int cmd,
+static long mtdchar_compat_ioctl(struct file *file, unsigned int cmd,
 	unsigned long arg)
 {
 	struct mtd_file_info *mfi = file->private_data;
@@ -1074,7 +1053,7 @@ static long mtd_compat_ioctl(struct file *file, unsigned int cmd,
 		if (copy_from_user(&buf, argp, sizeof(buf)))
 			ret = -EFAULT;
 		else
-			ret = mtd_do_writeoob(file, mtd, buf.start,
+			ret = mtdchar_writeoob(file, mtd, buf.start,
 				buf.length, compat_ptr(buf.ptr),
 				&buf_user->length);
 		break;
@@ -1089,13 +1068,13 @@ static long mtd_compat_ioctl(struct file *file, unsigned int cmd,
 		if (copy_from_user(&buf, argp, sizeof(buf)))
 			ret = -EFAULT;
 		else
-			ret = mtd_do_readoob(file, mtd, buf.start,
+			ret = mtdchar_readoob(file, mtd, buf.start,
 				buf.length, compat_ptr(buf.ptr),
 				&buf_user->start);
 		break;
 	}
 	default:
-		ret = mtd_ioctl(file, cmd, (unsigned long)argp);
+		ret = mtdchar_ioctl(file, cmd, (unsigned long)argp);
 	}
 
 	mutex_unlock(&mtd_mutex);
@@ -1111,7 +1090,7 @@ static long mtd_compat_ioctl(struct file *file, unsigned int cmd,
  *   mappings)
  */
 #ifndef CONFIG_MMU
-static unsigned long mtd_get_unmapped_area(struct file *file,
+static unsigned long mtdchar_get_unmapped_area(struct file *file,
 					   unsigned long addr,
 					   unsigned long len,
 					   unsigned long pgoff,
@@ -1119,32 +1098,28 @@ static unsigned long mtd_get_unmapped_area(struct file *file,
 {
 	struct mtd_file_info *mfi = file->private_data;
 	struct mtd_info *mtd = mfi->mtd;
+	unsigned long offset;
+	int ret;
 
-	if (mtd->get_unmapped_area) {
-		unsigned long offset;
-
-		if (addr != 0)
-			return (unsigned long) -EINVAL;
-
-		if (len > mtd->size || pgoff >= (mtd->size >> PAGE_SHIFT))
-			return (unsigned long) -EINVAL;
+	if (addr != 0)
+		return (unsigned long) -EINVAL;
 
-		offset = pgoff << PAGE_SHIFT;
-		if (offset > mtd->size - len)
-			return (unsigned long) -EINVAL;
+	if (len > mtd->size || pgoff >= (mtd->size >> PAGE_SHIFT))
+		return (unsigned long) -EINVAL;
 
-		return mtd->get_unmapped_area(mtd, len, offset, flags);
-	}
+	offset = pgoff << PAGE_SHIFT;
+	if (offset > mtd->size - len)
+		return (unsigned long) -EINVAL;
 
-	/* can't map directly */
-	return (unsigned long) -ENOSYS;
+	ret = mtd_get_unmapped_area(mtd, len, offset, flags);
+	return ret == -EOPNOTSUPP ? -ENOSYS : ret;
 }
 #endif
 
 /*
  * set up a mapping for shared memory segments
  */
-static int mtd_mmap(struct file *file, struct vm_area_struct *vma)
+static int mtdchar_mmap(struct file *file, struct vm_area_struct *vma)
 {
 #ifdef CONFIG_MMU
 	struct mtd_file_info *mfi = file->private_data;
@@ -1185,18 +1160,18 @@ static int mtd_mmap(struct file *file, struct vm_area_struct *vma)
 
 static const struct file_operations mtd_fops = {
 	.owner		= THIS_MODULE,
-	.llseek		= mtd_lseek,
-	.read		= mtd_read,
-	.write		= mtd_write,
-	.unlocked_ioctl	= mtd_unlocked_ioctl,
+	.llseek		= mtdchar_lseek,
+	.read		= mtdchar_read,
+	.write		= mtdchar_write,
+	.unlocked_ioctl	= mtdchar_unlocked_ioctl,
 #ifdef CONFIG_COMPAT
-	.compat_ioctl	= mtd_compat_ioctl,
+	.compat_ioctl	= mtdchar_compat_ioctl,
 #endif
-	.open		= mtd_open,
-	.release	= mtd_close,
-	.mmap		= mtd_mmap,
+	.open		= mtdchar_open,
+	.release	= mtdchar_close,
+	.mmap		= mtdchar_mmap,
 #ifndef CONFIG_MMU
-	.get_unmapped_area = mtd_get_unmapped_area,
+	.get_unmapped_area = mtdchar_get_unmapped_area,
 #endif
 };
 
diff --git a/drivers/mtd/mtdconcat.c b/drivers/mtd/mtdconcat.c
index 6df4d4d4eb92..1ed5103b219b 100644
--- a/drivers/mtd/mtdconcat.c
+++ b/drivers/mtd/mtdconcat.c
@@ -91,7 +91,7 @@ concat_read(struct mtd_info *mtd, loff_t from, size_t len,
 			/* Entire transaction goes into this subdev */
 			size = len;
 
-		err = subdev->read(subdev, from, size, &retsize, buf);
+		err = mtd_read(subdev, from, size, &retsize, buf);
 
 		/* Save information about bitflips! */
 		if (unlikely(err)) {
@@ -148,7 +148,7 @@ concat_write(struct mtd_info *mtd, loff_t to, size_t len,
 		if (!(subdev->flags & MTD_WRITEABLE))
 			err = -EROFS;
 		else
-			err = subdev->write(subdev, to, size, &retsize, buf);
+			err = mtd_write(subdev, to, size, &retsize, buf);
 
 		if (err)
 			break;
@@ -227,8 +227,9 @@ concat_writev(struct mtd_info *mtd, const struct kvec *vecs,
 		if (!(subdev->flags & MTD_WRITEABLE))
 			err = -EROFS;
 		else
-			err = subdev->writev(subdev, &vecs_copy[entry_low],
-				entry_high - entry_low + 1, to, &retsize);
+			err = mtd_writev(subdev, &vecs_copy[entry_low],
+					 entry_high - entry_low + 1, to,
+					 &retsize);
 
 		vecs_copy[entry_high].iov_len = old_iov_len - size;
 		vecs_copy[entry_high].iov_base += size;
@@ -273,7 +274,7 @@ concat_read_oob(struct mtd_info *mtd, loff_t from, struct mtd_oob_ops *ops)
 		if (from + devops.len > subdev->size)
 			devops.len = subdev->size - from;
 
-		err = subdev->read_oob(subdev, from, &devops);
+		err = mtd_read_oob(subdev, from, &devops);
 		ops->retlen += devops.retlen;
 		ops->oobretlen += devops.oobretlen;
 
@@ -333,7 +334,7 @@ concat_write_oob(struct mtd_info *mtd, loff_t to, struct mtd_oob_ops *ops)
 		if (to + devops.len > subdev->size)
 			devops.len = subdev->size - to;
 
-		err = subdev->write_oob(subdev, to, &devops);
+		err = mtd_write_oob(subdev, to, &devops);
 		ops->retlen += devops.oobretlen;
 		if (err)
 			return err;
@@ -379,7 +380,7 @@ static int concat_dev_erase(struct mtd_info *mtd, struct erase_info *erase)
 	 * FIXME: Allow INTERRUPTIBLE. Which means
 	 * not having the wait_queue head on the stack.
 	 */
-	err = mtd->erase(mtd, erase);
+	err = mtd_erase(mtd, erase);
 	if (!err) {
 		set_current_state(TASK_UNINTERRUPTIBLE);
 		add_wait_queue(&waitq, &wait);
@@ -554,12 +555,9 @@ static int concat_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
 		else
 			size = len;
 
-		if (subdev->lock) {
-			err = subdev->lock(subdev, ofs, size);
-			if (err)
-				break;
-		} else
-			err = -EOPNOTSUPP;
+		err = mtd_lock(subdev, ofs, size);
+		if (err)
+			break;
 
 		len -= size;
 		if (len == 0)
@@ -594,12 +592,9 @@ static int concat_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
 		else
 			size = len;
 
-		if (subdev->unlock) {
-			err = subdev->unlock(subdev, ofs, size);
-			if (err)
-				break;
-		} else
-			err = -EOPNOTSUPP;
+		err = mtd_unlock(subdev, ofs, size);
+		if (err)
+			break;
 
 		len -= size;
 		if (len == 0)
@@ -619,7 +614,7 @@ static void concat_sync(struct mtd_info *mtd)
 
 	for (i = 0; i < concat->num_subdev; i++) {
 		struct mtd_info *subdev = concat->subdev[i];
-		subdev->sync(subdev);
+		mtd_sync(subdev);
 	}
 }
 
@@ -630,7 +625,7 @@ static int concat_suspend(struct mtd_info *mtd)
 
 	for (i = 0; i < concat->num_subdev; i++) {
 		struct mtd_info *subdev = concat->subdev[i];
-		if ((rc = subdev->suspend(subdev)) < 0)
+		if ((rc = mtd_suspend(subdev)) < 0)
 			return rc;
 	}
 	return rc;
@@ -643,7 +638,7 @@ static void concat_resume(struct mtd_info *mtd)
 
 	for (i = 0; i < concat->num_subdev; i++) {
 		struct mtd_info *subdev = concat->subdev[i];
-		subdev->resume(subdev);
+		mtd_resume(subdev);
 	}
 }
 
@@ -652,7 +647,7 @@ static int concat_block_isbad(struct mtd_info *mtd, loff_t ofs)
 	struct mtd_concat *concat = CONCAT(mtd);
 	int i, res = 0;
 
-	if (!concat->subdev[0]->block_isbad)
+	if (!mtd_can_have_bb(concat->subdev[0]))
 		return res;
 
 	if (ofs > mtd->size)
@@ -666,7 +661,7 @@ static int concat_block_isbad(struct mtd_info *mtd, loff_t ofs)
 			continue;
 		}
 
-		res = subdev->block_isbad(subdev, ofs);
+		res = mtd_block_isbad(subdev, ofs);
 		break;
 	}
 
@@ -678,7 +673,7 @@ static int concat_block_markbad(struct mtd_info *mtd, loff_t ofs)
 	struct mtd_concat *concat = CONCAT(mtd);
 	int i, err = -EINVAL;
 
-	if (!concat->subdev[0]->block_markbad)
+	if (!mtd_can_have_bb(concat->subdev[0]))
 		return 0;
 
 	if (ofs > mtd->size)
@@ -692,7 +687,7 @@ static int concat_block_markbad(struct mtd_info *mtd, loff_t ofs)
 			continue;
 		}
 
-		err = subdev->block_markbad(subdev, ofs);
+		err = mtd_block_markbad(subdev, ofs);
 		if (!err)
 			mtd->ecc_stats.badblocks++;
 		break;
@@ -725,11 +720,7 @@ static unsigned long concat_get_unmapped_area(struct mtd_info *mtd,
 		if (offset + len > subdev->size)
 			return (unsigned long) -EINVAL;
 
-		if (subdev->get_unmapped_area)
-			return subdev->get_unmapped_area(subdev, len, offset,
-							 flags);
-
-		break;
+		return mtd_get_unmapped_area(subdev, len, offset, flags);
 	}
 
 	return (unsigned long) -ENOSYS;
diff --git a/drivers/mtd/mtdcore.c b/drivers/mtd/mtdcore.c
index b01993ea260e..6ae9ca01388b 100644
--- a/drivers/mtd/mtdcore.c
+++ b/drivers/mtd/mtdcore.c
@@ -107,7 +107,8 @@ static LIST_HEAD(mtd_notifiers);
  */
 static void mtd_release(struct device *dev)
 {
-	dev_t index = MTD_DEVT(dev_to_mtd(dev)->index);
+	struct mtd_info *mtd = dev_get_drvdata(dev);
+	dev_t index = MTD_DEVT(mtd->index);
 
 	/* remove /dev/mtdXro node if needed */
 	if (index)
@@ -116,27 +117,24 @@ static void mtd_release(struct device *dev)
 
 static int mtd_cls_suspend(struct device *dev, pm_message_t state)
 {
-	struct mtd_info *mtd = dev_to_mtd(dev);
+	struct mtd_info *mtd = dev_get_drvdata(dev);
 
-	if (mtd && mtd->suspend)
-		return mtd->suspend(mtd);
-	else
-		return 0;
+	return mtd_suspend(mtd);
 }
 
 static int mtd_cls_resume(struct device *dev)
 {
-	struct mtd_info *mtd = dev_to_mtd(dev);
-	
+	struct mtd_info *mtd = dev_get_drvdata(dev);
+
 	if (mtd && mtd->resume)
-		mtd->resume(mtd);
+		mtd_resume(mtd);
 	return 0;
 }
 
 static ssize_t mtd_type_show(struct device *dev,
 		struct device_attribute *attr, char *buf)
 {
-	struct mtd_info *mtd = dev_to_mtd(dev);
+	struct mtd_info *mtd = dev_get_drvdata(dev);
 	char *type;
 
 	switch (mtd->type) {
@@ -172,7 +170,7 @@ static DEVICE_ATTR(type, S_IRUGO, mtd_type_show, NULL);
 static ssize_t mtd_flags_show(struct device *dev,
 		struct device_attribute *attr, char *buf)
 {
-	struct mtd_info *mtd = dev_to_mtd(dev);
+	struct mtd_info *mtd = dev_get_drvdata(dev);
 
 	return snprintf(buf, PAGE_SIZE, "0x%lx\n", (unsigned long)mtd->flags);
 
@@ -182,7 +180,7 @@ static DEVICE_ATTR(flags, S_IRUGO, mtd_flags_show, NULL);
 static ssize_t mtd_size_show(struct device *dev,
 		struct device_attribute *attr, char *buf)
 {
-	struct mtd_info *mtd = dev_to_mtd(dev);
+	struct mtd_info *mtd = dev_get_drvdata(dev);
 
 	return snprintf(buf, PAGE_SIZE, "%llu\n",
 		(unsigned long long)mtd->size);
@@ -193,7 +191,7 @@ static DEVICE_ATTR(size, S_IRUGO, mtd_size_show, NULL);
 static ssize_t mtd_erasesize_show(struct device *dev,
 		struct device_attribute *attr, char *buf)
 {
-	struct mtd_info *mtd = dev_to_mtd(dev);
+	struct mtd_info *mtd = dev_get_drvdata(dev);
 
 	return snprintf(buf, PAGE_SIZE, "%lu\n", (unsigned long)mtd->erasesize);
 
@@ -203,7 +201,7 @@ static DEVICE_ATTR(erasesize, S_IRUGO, mtd_erasesize_show, NULL);
 static ssize_t mtd_writesize_show(struct device *dev,
 		struct device_attribute *attr, char *buf)
 {
-	struct mtd_info *mtd = dev_to_mtd(dev);
+	struct mtd_info *mtd = dev_get_drvdata(dev);
 
 	return snprintf(buf, PAGE_SIZE, "%lu\n", (unsigned long)mtd->writesize);
 
@@ -213,7 +211,7 @@ static DEVICE_ATTR(writesize, S_IRUGO, mtd_writesize_show, NULL);
 static ssize_t mtd_subpagesize_show(struct device *dev,
 		struct device_attribute *attr, char *buf)
 {
-	struct mtd_info *mtd = dev_to_mtd(dev);
+	struct mtd_info *mtd = dev_get_drvdata(dev);
 	unsigned int subpagesize = mtd->writesize >> mtd->subpage_sft;
 
 	return snprintf(buf, PAGE_SIZE, "%u\n", subpagesize);
@@ -224,7 +222,7 @@ static DEVICE_ATTR(subpagesize, S_IRUGO, mtd_subpagesize_show, NULL);
 static ssize_t mtd_oobsize_show(struct device *dev,
 		struct device_attribute *attr, char *buf)
 {
-	struct mtd_info *mtd = dev_to_mtd(dev);
+	struct mtd_info *mtd = dev_get_drvdata(dev);
 
 	return snprintf(buf, PAGE_SIZE, "%lu\n", (unsigned long)mtd->oobsize);
 
@@ -234,7 +232,7 @@ static DEVICE_ATTR(oobsize, S_IRUGO, mtd_oobsize_show, NULL);
 static ssize_t mtd_numeraseregions_show(struct device *dev,
 		struct device_attribute *attr, char *buf)
 {
-	struct mtd_info *mtd = dev_to_mtd(dev);
+	struct mtd_info *mtd = dev_get_drvdata(dev);
 
 	return snprintf(buf, PAGE_SIZE, "%u\n", mtd->numeraseregions);
 
@@ -245,7 +243,7 @@ static DEVICE_ATTR(numeraseregions, S_IRUGO, mtd_numeraseregions_show,
 static ssize_t mtd_name_show(struct device *dev,
 		struct device_attribute *attr, char *buf)
 {
-	struct mtd_info *mtd = dev_to_mtd(dev);
+	struct mtd_info *mtd = dev_get_drvdata(dev);
 
 	return snprintf(buf, PAGE_SIZE, "%s\n", mtd->name);
 
@@ -338,9 +336,9 @@ int add_mtd_device(struct mtd_info *mtd)
 	mtd->writesize_mask = (1 << mtd->writesize_shift) - 1;
 
 	/* Some chips always power up locked. Unlock them now */
-	if ((mtd->flags & MTD_WRITEABLE)
-	    && (mtd->flags & MTD_POWERUP_LOCK) && mtd->unlock) {
-		if (mtd->unlock(mtd, 0, mtd->size))
+	if ((mtd->flags & MTD_WRITEABLE) && (mtd->flags & MTD_POWERUP_LOCK)) {
+		error = mtd_unlock(mtd, 0, mtd->size);
+		if (error && error != -EOPNOTSUPP)
 			printk(KERN_WARNING
 			       "%s: unlock failed, writes may not work\n",
 			       mtd->name);
@@ -516,7 +514,6 @@ EXPORT_SYMBOL_GPL(mtd_device_unregister);
  *	or removal of MTD devices. Causes the 'add' callback to be immediately
  *	invoked for each MTD device currently present in the system.
  */
-
 void register_mtd_user (struct mtd_notifier *new)
 {
 	struct mtd_info *mtd;
@@ -532,6 +529,7 @@ void register_mtd_user (struct mtd_notifier *new)
 
 	mutex_unlock(&mtd_table_mutex);
 }
+EXPORT_SYMBOL_GPL(register_mtd_user);
 
 /**
  *	unregister_mtd_user - unregister a 'user' of MTD devices.
@@ -542,7 +540,6 @@ void register_mtd_user (struct mtd_notifier *new)
  *	'remove' callback to be immediately invoked for each MTD device
  *	currently present in the system.
  */
-
 int unregister_mtd_user (struct mtd_notifier *old)
 {
 	struct mtd_info *mtd;
@@ -558,7 +555,7 @@ int unregister_mtd_user (struct mtd_notifier *old)
 	mutex_unlock(&mtd_table_mutex);
 	return 0;
 }
-
+EXPORT_SYMBOL_GPL(unregister_mtd_user);
 
 /**
  *	get_mtd_device - obtain a validated handle for an MTD device
@@ -571,7 +568,6 @@ int unregister_mtd_user (struct mtd_notifier *old)
  *	both, return the num'th driver only if its address matches. Return
  *	error code if not.
  */
-
 struct mtd_info *get_mtd_device(struct mtd_info *mtd, int num)
 {
 	struct mtd_info *ret = NULL, *other;
@@ -604,6 +600,7 @@ out:
 	mutex_unlock(&mtd_table_mutex);
 	return ret;
 }
+EXPORT_SYMBOL_GPL(get_mtd_device);
 
 
 int __get_mtd_device(struct mtd_info *mtd)
@@ -624,6 +621,7 @@ int __get_mtd_device(struct mtd_info *mtd)
 	mtd->usecount++;
 	return 0;
 }
+EXPORT_SYMBOL_GPL(__get_mtd_device);
 
 /**
  *	get_mtd_device_nm - obtain a validated handle for an MTD device by
@@ -633,7 +631,6 @@ int __get_mtd_device(struct mtd_info *mtd)
  * 	This function returns MTD device description structure in case of
  * 	success and an error code in case of failure.
  */
-
 struct mtd_info *get_mtd_device_nm(const char *name)
 {
 	int err = -ENODEV;
@@ -662,6 +659,7 @@ out_unlock:
 	mutex_unlock(&mtd_table_mutex);
 	return ERR_PTR(err);
 }
+EXPORT_SYMBOL_GPL(get_mtd_device_nm);
 
 void put_mtd_device(struct mtd_info *mtd)
 {
@@ -670,6 +668,7 @@ void put_mtd_device(struct mtd_info *mtd)
 	mutex_unlock(&mtd_table_mutex);
 
 }
+EXPORT_SYMBOL_GPL(put_mtd_device);
 
 void __put_mtd_device(struct mtd_info *mtd)
 {
@@ -681,39 +680,65 @@ void __put_mtd_device(struct mtd_info *mtd)
 
 	module_put(mtd->owner);
 }
+EXPORT_SYMBOL_GPL(__put_mtd_device);
 
-/* default_mtd_writev - default mtd writev method for MTD devices that
- *			don't implement their own
+/*
+ * default_mtd_writev - the default writev method
+ * @mtd: mtd device description object pointer
+ * @vecs: the vectors to write
+ * @count: count of vectors in @vecs
+ * @to: the MTD device offset to write to
+ * @retlen: on exit contains the count of bytes written to the MTD device.
+ *
+ * This function returns zero in case of success and a negative error code in
+ * case of failure.
  */
-
-int default_mtd_writev(struct mtd_info *mtd, const struct kvec *vecs,
-		       unsigned long count, loff_t to, size_t *retlen)
+static int default_mtd_writev(struct mtd_info *mtd, const struct kvec *vecs,
+			      unsigned long count, loff_t to, size_t *retlen)
 {
 	unsigned long i;
 	size_t totlen = 0, thislen;
 	int ret = 0;
 
-	if(!mtd->write) {
-		ret = -EROFS;
-	} else {
-		for (i=0; i<count; i++) {
-			if (!vecs[i].iov_len)
-				continue;
-			ret = mtd->write(mtd, to, vecs[i].iov_len, &thislen, vecs[i].iov_base);
-			totlen += thislen;
-			if (ret || thislen != vecs[i].iov_len)
-				break;
-			to += vecs[i].iov_len;
-		}
+	for (i = 0; i < count; i++) {
+		if (!vecs[i].iov_len)
+			continue;
+		ret = mtd_write(mtd, to, vecs[i].iov_len, &thislen,
+				vecs[i].iov_base);
+		totlen += thislen;
+		if (ret || thislen != vecs[i].iov_len)
+			break;
+		to += vecs[i].iov_len;
 	}
-	if (retlen)
-		*retlen = totlen;
+	*retlen = totlen;
 	return ret;
 }
 
+/*
+ * mtd_writev - the vector-based MTD write method
+ * @mtd: mtd device description object pointer
+ * @vecs: the vectors to write
+ * @count: count of vectors in @vecs
+ * @to: the MTD device offset to write to
+ * @retlen: on exit contains the count of bytes written to the MTD device.
+ *
+ * This function returns zero in case of success and a negative error code in
+ * case of failure.
+ */
+int mtd_writev(struct mtd_info *mtd, const struct kvec *vecs,
+	       unsigned long count, loff_t to, size_t *retlen)
+{
+	*retlen = 0;
+	if (!mtd->writev)
+		return default_mtd_writev(mtd, vecs, count, to, retlen);
+	return mtd->writev(mtd, vecs, count, to, retlen);
+}
+EXPORT_SYMBOL_GPL(mtd_writev);
+
 /**
  * mtd_kmalloc_up_to - allocate a contiguous buffer up to the specified size
- * @size: A pointer to the ideal or maximum size of the allocation. Points
+ * @mtd: mtd device description object pointer
+ * @size: a pointer to the ideal or maximum size of the allocation, points
  *        to the actual allocation size on success.
  *
  * This routine attempts to allocate a contiguous kernel buffer up to
@@ -758,15 +783,6 @@ void *mtd_kmalloc_up_to(const struct mtd_info *mtd, size_t *size)
 	 */
 	return kmalloc(*size, GFP_KERNEL);
 }
-
-EXPORT_SYMBOL_GPL(get_mtd_device);
-EXPORT_SYMBOL_GPL(get_mtd_device_nm);
-EXPORT_SYMBOL_GPL(__get_mtd_device);
-EXPORT_SYMBOL_GPL(put_mtd_device);
-EXPORT_SYMBOL_GPL(__put_mtd_device);
-EXPORT_SYMBOL_GPL(register_mtd_user);
-EXPORT_SYMBOL_GPL(unregister_mtd_user);
-EXPORT_SYMBOL_GPL(default_mtd_writev);
 EXPORT_SYMBOL_GPL(mtd_kmalloc_up_to);
 
 #ifdef CONFIG_PROC_FS
diff --git a/drivers/mtd/mtdoops.c b/drivers/mtd/mtdoops.c
index 1e2fa6236705..db8e8272d69b 100644
--- a/drivers/mtd/mtdoops.c
+++ b/drivers/mtd/mtdoops.c
@@ -112,7 +112,7 @@ static int mtdoops_erase_block(struct mtdoops_context *cxt, int offset)
 	set_current_state(TASK_INTERRUPTIBLE);
 	add_wait_queue(&wait_q, &wait);
 
-	ret = mtd->erase(mtd, &erase);
+	ret = mtd_erase(mtd, &erase);
 	if (ret) {
 		set_current_state(TASK_RUNNING);
 		remove_wait_queue(&wait_q, &wait);
@@ -169,8 +169,8 @@ static void mtdoops_workfunc_erase(struct work_struct *work)
 			cxt->nextpage = 0;
 	}
 
-	while (mtd->block_isbad) {
-		ret = mtd->block_isbad(mtd, cxt->nextpage * record_size);
+	while (mtd_can_have_bb(mtd)) {
+		ret = mtd_block_isbad(mtd, cxt->nextpage * record_size);
 		if (!ret)
 			break;
 		if (ret < 0) {
@@ -199,8 +199,8 @@ badblock:
 		return;
 	}
 
-	if (mtd->block_markbad && ret == -EIO) {
-		ret = mtd->block_markbad(mtd, cxt->nextpage * record_size);
+	if (mtd_can_have_bb(mtd) && ret == -EIO) {
+		ret = mtd_block_markbad(mtd, cxt->nextpage * record_size);
 		if (ret < 0) {
 			printk(KERN_ERR "mtdoops: block_markbad failed, aborting\n");
 			return;
@@ -221,12 +221,16 @@ static void mtdoops_write(struct mtdoops_context *cxt, int panic)
 	hdr[0] = cxt->nextcount;
 	hdr[1] = MTDOOPS_KERNMSG_MAGIC;
 
-	if (panic)
-		ret = mtd->panic_write(mtd, cxt->nextpage * record_size,
-					record_size, &retlen, cxt->oops_buf);
-	else
-		ret = mtd->write(mtd, cxt->nextpage * record_size,
-					record_size, &retlen, cxt->oops_buf);
+	if (panic) {
+		ret = mtd_panic_write(mtd, cxt->nextpage * record_size,
+				      record_size, &retlen, cxt->oops_buf);
+		if (ret == -EOPNOTSUPP) {
+			printk(KERN_ERR "mtdoops: Cannot write from panic without panic_write\n");
+			return;
+		}
+	} else
+		ret = mtd_write(mtd, cxt->nextpage * record_size,
+				record_size, &retlen, cxt->oops_buf);
 
 	if (retlen != record_size || ret < 0)
 		printk(KERN_ERR "mtdoops: write failure at %ld (%td of %ld written), error %d\n",
@@ -253,10 +257,13 @@ static void find_next_position(struct mtdoops_context *cxt)
 	size_t retlen;
 
 	for (page = 0; page < cxt->oops_pages; page++) {
+		if (mtd_can_have_bb(mtd) &&
+		    mtd_block_isbad(mtd, page * record_size))
+			continue;
 		/* Assume the page is used */
 		mark_page_used(cxt, page);
-		ret = mtd->read(mtd, page * record_size, MTDOOPS_HEADER_SIZE,
-				&retlen, (u_char *) &count[0]);
+		ret = mtd_read(mtd, page * record_size, MTDOOPS_HEADER_SIZE,
+			       &retlen, (u_char *)&count[0]);
 		if (retlen != MTDOOPS_HEADER_SIZE ||
 				(ret < 0 && !mtd_is_bitflip(ret))) {
 			printk(KERN_ERR "mtdoops: read failure at %ld (%td of %d read), err %d\n",
@@ -327,13 +334,8 @@ static void mtdoops_do_dump(struct kmsg_dumper *dumper,
 	memcpy(dst + l1_cpy, s2 + s2_start, l2_cpy);
 
 	/* Panics must be written immediately */
-	if (reason != KMSG_DUMP_OOPS) {
-		if (!cxt->mtd->panic_write)
-			printk(KERN_ERR "mtdoops: Cannot write from panic without panic_write\n");
-		else
-			mtdoops_write(cxt, 1);
-		return;
-	}
+	if (reason != KMSG_DUMP_OOPS)
+		mtdoops_write(cxt, 1);
 
 	/* For other cases, schedule work to write it "nicely" */
 	schedule_work(&cxt->work_write);
@@ -369,7 +371,7 @@ static void mtdoops_notify_add(struct mtd_info *mtd)
 
 	/* oops_page_used is a bit field */
 	cxt->oops_page_used = vmalloc(DIV_ROUND_UP(mtdoops_pages,
-			BITS_PER_LONG));
+			BITS_PER_LONG) * sizeof(unsigned long));
 	if (!cxt->oops_page_used) {
 		printk(KERN_ERR "mtdoops: could not allocate page array\n");
 		return;
diff --git a/drivers/mtd/mtdpart.c b/drivers/mtd/mtdpart.c
index a0bd2de4752b..a3d44c3416b4 100644
--- a/drivers/mtd/mtdpart.c
+++ b/drivers/mtd/mtdpart.c
@@ -70,8 +70,7 @@ static int part_read(struct mtd_info *mtd, loff_t from, size_t len,
 		len = 0;
 	else if (from + len > mtd->size)
 		len = mtd->size - from;
-	res = part->master->read(part->master, from + part->offset,
-				   len, retlen, buf);
+	res = mtd_read(part->master, from + part->offset, len, retlen, buf);
 	if (unlikely(res)) {
 		if (mtd_is_bitflip(res))
 			mtd->ecc_stats.corrected += part->master->ecc_stats.corrected - stats.corrected;
@@ -89,15 +88,15 @@ static int part_point(struct mtd_info *mtd, loff_t from, size_t len,
 		len = 0;
 	else if (from + len > mtd->size)
 		len = mtd->size - from;
-	return part->master->point (part->master, from + part->offset,
-				    len, retlen, virt, phys);
+	return mtd_point(part->master, from + part->offset, len, retlen,
+			 virt, phys);
 }
 
 static void part_unpoint(struct mtd_info *mtd, loff_t from, size_t len)
 {
 	struct mtd_part *part = PART(mtd);
 
-	part->master->unpoint(part->master, from + part->offset, len);
+	mtd_unpoint(part->master, from + part->offset, len);
 }
 
 static unsigned long part_get_unmapped_area(struct mtd_info *mtd,
@@ -108,8 +107,7 @@ static unsigned long part_get_unmapped_area(struct mtd_info *mtd,
 	struct mtd_part *part = PART(mtd);
 
 	offset += part->offset;
-	return part->master->get_unmapped_area(part->master, len, offset,
-					       flags);
+	return mtd_get_unmapped_area(part->master, len, offset, flags);
 }
 
 static int part_read_oob(struct mtd_info *mtd, loff_t from,
@@ -140,7 +138,7 @@ static int part_read_oob(struct mtd_info *mtd, loff_t from,
 			return -EINVAL;
 	}
 
-	res = part->master->read_oob(part->master, from + part->offset, ops);
+	res = mtd_read_oob(part->master, from + part->offset, ops);
 	if (unlikely(res)) {
 		if (mtd_is_bitflip(res))
 			mtd->ecc_stats.corrected++;
@@ -154,30 +152,28 @@ static int part_read_user_prot_reg(struct mtd_info *mtd, loff_t from,
 		size_t len, size_t *retlen, u_char *buf)
 {
 	struct mtd_part *part = PART(mtd);
-	return part->master->read_user_prot_reg(part->master, from,
-					len, retlen, buf);
+	return mtd_read_user_prot_reg(part->master, from, len, retlen, buf);
 }
 
 static int part_get_user_prot_info(struct mtd_info *mtd,
 		struct otp_info *buf, size_t len)
 {
 	struct mtd_part *part = PART(mtd);
-	return part->master->get_user_prot_info(part->master, buf, len);
+	return mtd_get_user_prot_info(part->master, buf, len);
 }
 
 static int part_read_fact_prot_reg(struct mtd_info *mtd, loff_t from,
 		size_t len, size_t *retlen, u_char *buf)
 {
 	struct mtd_part *part = PART(mtd);
-	return part->master->read_fact_prot_reg(part->master, from,
-					len, retlen, buf);
+	return mtd_read_fact_prot_reg(part->master, from, len, retlen, buf);
 }
 
 static int part_get_fact_prot_info(struct mtd_info *mtd, struct otp_info *buf,
 		size_t len)
 {
 	struct mtd_part *part = PART(mtd);
-	return part->master->get_fact_prot_info(part->master, buf, len);
+	return mtd_get_fact_prot_info(part->master, buf, len);
 }
 
 static int part_write(struct mtd_info *mtd, loff_t to, size_t len,
@@ -190,8 +186,7 @@ static int part_write(struct mtd_info *mtd, loff_t to, size_t len,
 		len = 0;
 	else if (to + len > mtd->size)
 		len = mtd->size - to;
-	return part->master->write(part->master, to + part->offset,
-				    len, retlen, buf);
+	return mtd_write(part->master, to + part->offset, len, retlen, buf);
 }
 
 static int part_panic_write(struct mtd_info *mtd, loff_t to, size_t len,
@@ -204,8 +199,8 @@ static int part_panic_write(struct mtd_info *mtd, loff_t to, size_t len,
 		len = 0;
 	else if (to + len > mtd->size)
 		len = mtd->size - to;
-	return part->master->panic_write(part->master, to + part->offset,
-				    len, retlen, buf);
+	return mtd_panic_write(part->master, to + part->offset, len, retlen,
+			       buf);
 }
 
 static int part_write_oob(struct mtd_info *mtd, loff_t to,
@@ -220,22 +215,21 @@ static int part_write_oob(struct mtd_info *mtd, loff_t to,
 		return -EINVAL;
 	if (ops->datbuf && to + ops->len > mtd->size)
 		return -EINVAL;
-	return part->master->write_oob(part->master, to + part->offset, ops);
+	return mtd_write_oob(part->master, to + part->offset, ops);
 }
 
 static int part_write_user_prot_reg(struct mtd_info *mtd, loff_t from,
 		size_t len, size_t *retlen, u_char *buf)
 {
 	struct mtd_part *part = PART(mtd);
-	return part->master->write_user_prot_reg(part->master, from,
-					len, retlen, buf);
+	return mtd_write_user_prot_reg(part->master, from, len, retlen, buf);
 }
 
 static int part_lock_user_prot_reg(struct mtd_info *mtd, loff_t from,
 		size_t len)
 {
 	struct mtd_part *part = PART(mtd);
-	return part->master->lock_user_prot_reg(part->master, from, len);
+	return mtd_lock_user_prot_reg(part->master, from, len);
 }
 
 static int part_writev(struct mtd_info *mtd, const struct kvec *vecs,
@@ -244,8 +238,8 @@ static int part_writev(struct mtd_info *mtd, const struct kvec *vecs,
 	struct mtd_part *part = PART(mtd);
 	if (!(mtd->flags & MTD_WRITEABLE))
 		return -EROFS;
-	return part->master->writev(part->master, vecs, count,
-					to + part->offset, retlen);
+	return mtd_writev(part->master, vecs, count, to + part->offset,
+			  retlen);
 }
 
 static int part_erase(struct mtd_info *mtd, struct erase_info *instr)
@@ -257,7 +251,7 @@ static int part_erase(struct mtd_info *mtd, struct erase_info *instr)
 	if (instr->addr >= mtd->size)
 		return -EINVAL;
 	instr->addr += part->offset;
-	ret = part->master->erase(part->master, instr);
+	ret = mtd_erase(part->master, instr);
 	if (ret) {
 		if (instr->fail_addr != MTD_FAIL_ADDR_UNKNOWN)
 			instr->fail_addr -= part->offset;
@@ -285,7 +279,7 @@ static int part_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
 	struct mtd_part *part = PART(mtd);
 	if ((len + ofs) > mtd->size)
 		return -EINVAL;
-	return part->master->lock(part->master, ofs + part->offset, len);
+	return mtd_lock(part->master, ofs + part->offset, len);
 }
 
 static int part_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
@@ -293,7 +287,7 @@ static int part_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
 	struct mtd_part *part = PART(mtd);
 	if ((len + ofs) > mtd->size)
 		return -EINVAL;
-	return part->master->unlock(part->master, ofs + part->offset, len);
+	return mtd_unlock(part->master, ofs + part->offset, len);
 }
 
 static int part_is_locked(struct mtd_info *mtd, loff_t ofs, uint64_t len)
@@ -301,25 +295,25 @@ static int part_is_locked(struct mtd_info *mtd, loff_t ofs, uint64_t len)
 	struct mtd_part *part = PART(mtd);
 	if ((len + ofs) > mtd->size)
 		return -EINVAL;
-	return part->master->is_locked(part->master, ofs + part->offset, len);
+	return mtd_is_locked(part->master, ofs + part->offset, len);
 }
 
 static void part_sync(struct mtd_info *mtd)
 {
 	struct mtd_part *part = PART(mtd);
-	part->master->sync(part->master);
+	mtd_sync(part->master);
 }
 
 static int part_suspend(struct mtd_info *mtd)
 {
 	struct mtd_part *part = PART(mtd);
-	return part->master->suspend(part->master);
+	return mtd_suspend(part->master);
 }
 
 static void part_resume(struct mtd_info *mtd)
 {
 	struct mtd_part *part = PART(mtd);
-	part->master->resume(part->master);
+	mtd_resume(part->master);
 }
 
 static int part_block_isbad(struct mtd_info *mtd, loff_t ofs)
@@ -328,7 +322,7 @@ static int part_block_isbad(struct mtd_info *mtd, loff_t ofs)
 	if (ofs >= mtd->size)
 		return -EINVAL;
 	ofs += part->offset;
-	return part->master->block_isbad(part->master, ofs);
+	return mtd_block_isbad(part->master, ofs);
 }
 
 static int part_block_markbad(struct mtd_info *mtd, loff_t ofs)
@@ -341,7 +335,7 @@ static int part_block_markbad(struct mtd_info *mtd, loff_t ofs)
 	if (ofs >= mtd->size)
 		return -EINVAL;
 	ofs += part->offset;
-	res = part->master->block_markbad(part->master, ofs);
+	res = mtd_block_markbad(part->master, ofs);
 	if (!res)
 		mtd->ecc_stats.badblocks++;
 	return res;
@@ -559,8 +553,7 @@ static struct mtd_part *allocate_partition(struct mtd_info *master,
 		uint64_t offs = 0;
 
 		while (offs < slave->mtd.size) {
-			if (master->block_isbad(master,
-						offs + slave->offset))
+			if (mtd_block_isbad(master, offs + slave->offset))
 				slave->mtd.ecc_stats.badblocks++;
 			offs += slave->mtd.erasesize;
 		}
diff --git a/drivers/mtd/mtdswap.c b/drivers/mtd/mtdswap.c
index bd9590c723e4..c92f0f6bc130 100644
--- a/drivers/mtd/mtdswap.c
+++ b/drivers/mtd/mtdswap.c
@@ -274,12 +274,12 @@ static int mtdswap_handle_badblock(struct mtdswap_dev *d, struct swap_eb *eb)
 	eb->root = NULL;
 
 	/* badblocks not supported */
-	if (!d->mtd->block_markbad)
+	if (!mtd_can_have_bb(d->mtd))
 		return 1;
 
 	offset = mtdswap_eb_offset(d, eb);
 	dev_warn(d->dev, "Marking bad block at %08llx\n", offset);
-	ret = d->mtd->block_markbad(d->mtd, offset);
+	ret = mtd_block_markbad(d->mtd, offset);
 
 	if (ret) {
 		dev_warn(d->dev, "Mark block bad failed for block at %08llx "
@@ -312,7 +312,7 @@ static int mtdswap_handle_write_error(struct mtdswap_dev *d, struct swap_eb *eb)
 static int mtdswap_read_oob(struct mtdswap_dev *d, loff_t from,
 			struct mtd_oob_ops *ops)
 {
-	int ret = d->mtd->read_oob(d->mtd, from, ops);
+	int ret = mtd_read_oob(d->mtd, from, ops);
 
 	if (mtd_is_bitflip(ret))
 		return ret;
@@ -343,7 +343,7 @@ static int mtdswap_read_markers(struct mtdswap_dev *d, struct swap_eb *eb)
 	offset = mtdswap_eb_offset(d, eb);
 
 	/* Check first if the block is bad. */
-	if (d->mtd->block_isbad && d->mtd->block_isbad(d->mtd, offset))
+	if (mtd_can_have_bb(d->mtd) && mtd_block_isbad(d->mtd, offset))
 		return MTDSWAP_SCANNED_BAD;
 
 	ops.ooblen = 2 * d->mtd->ecclayout->oobavail;
@@ -403,7 +403,7 @@ static int mtdswap_write_marker(struct mtdswap_dev *d, struct swap_eb *eb,
 		offset = mtdswap_eb_offset(d, eb) + d->mtd->writesize;
 	}
 
-	ret = d->mtd->write_oob(d->mtd, offset , &ops);
+	ret = mtd_write_oob(d->mtd, offset, &ops);
 
 	if (ret) {
 		dev_warn(d->dev, "Write OOB failed for block at %08llx "
@@ -567,7 +567,7 @@ retry:
 	erase.len	= mtd->erasesize;
 	erase.priv	= (u_long)&wq;
 
-	ret = mtd->erase(mtd, &erase);
+	ret = mtd_erase(mtd, &erase);
 	if (ret) {
 		if (retries++ < MTDSWAP_ERASE_RETRIES) {
 			dev_warn(d->dev,
@@ -689,7 +689,7 @@ retry:
 		return ret;
 
 	writepos = (loff_t)*bp << PAGE_SHIFT;
-	ret =  mtd->write(mtd, writepos, PAGE_SIZE, &retlen, buf);
+	ret =  mtd_write(mtd, writepos, PAGE_SIZE, &retlen, buf);
 	if (ret == -EIO || mtd_is_eccerr(ret)) {
 		d->curr_write_pos--;
 		eb->active_count--;
@@ -736,7 +736,7 @@ static int mtdswap_move_block(struct mtdswap_dev *d, unsigned int oldblock,
 	retries = 0;
 
 retry:
-	ret = mtd->read(mtd, readpos, PAGE_SIZE, &retlen, d->page_buf);
+	ret = mtd_read(mtd, readpos, PAGE_SIZE, &retlen, d->page_buf);
 
 	if (ret < 0 && !mtd_is_bitflip(ret)) {
 		oldeb = d->eb_data + oldblock / d->pages_per_eblk;
@@ -946,7 +946,7 @@ static unsigned int mtdswap_eblk_passes(struct mtdswap_dev *d,
 			patt = mtdswap_test_patt(test + i);
 			memset(d->page_buf, patt, mtd->writesize);
 			memset(d->oob_buf, patt, mtd->ecclayout->oobavail);
-			ret = mtd->write_oob(mtd, pos, &ops);
+			ret = mtd_write_oob(mtd, pos, &ops);
 			if (ret)
 				goto error;
 
@@ -955,7 +955,7 @@ static unsigned int mtdswap_eblk_passes(struct mtdswap_dev *d,
 
 		pos = base;
 		for (i = 0; i < mtd_pages; i++) {
-			ret = mtd->read_oob(mtd, pos, &ops);
+			ret = mtd_read_oob(mtd, pos, &ops);
 			if (ret)
 				goto error;
 
@@ -1047,8 +1047,7 @@ static int mtdswap_flush(struct mtd_blktrans_dev *dev)
 {
 	struct mtdswap_dev *d = MTDSWAP_MBD_TO_MTDSWAP(dev);
 
-	if (d->mtd->sync)
-		d->mtd->sync(d->mtd);
+	mtd_sync(d->mtd);
 	return 0;
 }
 
@@ -1059,9 +1058,9 @@ static unsigned int mtdswap_badblocks(struct mtd_info *mtd, uint64_t size)
 
 	badcnt = 0;
 
-	if (mtd->block_isbad)
+	if (mtd_can_have_bb(mtd))
 		for (offset = 0; offset < size; offset += mtd->erasesize)
-			if (mtd->block_isbad(mtd, offset))
+			if (mtd_block_isbad(mtd, offset))
 				badcnt++;
 
 	return badcnt;
@@ -1161,7 +1160,7 @@ static int mtdswap_readsect(struct mtd_blktrans_dev *dev,
 	retries = 0;
 
 retry:
-	ret = mtd->read(mtd, readpos, PAGE_SIZE, &retlen, buf);
+	ret = mtd_read(mtd, readpos, PAGE_SIZE, &retlen, buf);
 
 	d->mtd_read_count++;
 	if (mtd_is_bitflip(ret)) {
diff --git a/drivers/mtd/nand/Kconfig b/drivers/mtd/nand/Kconfig
index dd0279249bf4..31b034b7eba3 100644
--- a/drivers/mtd/nand/Kconfig
+++ b/drivers/mtd/nand/Kconfig
@@ -110,7 +110,7 @@ config MTD_NAND_AMS_DELTA
 
 config MTD_NAND_OMAP2
 	tristate "NAND Flash device on OMAP2, OMAP3 and OMAP4"
-	depends on ARM && (ARCH_OMAP2 || ARCH_OMAP3 || ARCH_OMAP4)
+	depends on ARCH_OMAP2PLUS
 	help
           Support for NAND flash on Texas Instruments OMAP2, OMAP3 and OMAP4
 	  platforms.
diff --git a/drivers/mtd/nand/ams-delta.c b/drivers/mtd/nand/ams-delta.c
index 9e6b498c9beb..3197e9764fcd 100644
--- a/drivers/mtd/nand/ams-delta.c
+++ b/drivers/mtd/nand/ams-delta.c
@@ -280,17 +280,7 @@ static struct platform_driver ams_delta_nand_driver = {
 	},
 };
 
-static int __init ams_delta_nand_init(void)
-{
-	return platform_driver_register(&ams_delta_nand_driver);
-}
-module_init(ams_delta_nand_init);
-
-static void __exit ams_delta_nand_exit(void)
-{
-	platform_driver_unregister(&ams_delta_nand_driver);
-}
-module_exit(ams_delta_nand_exit);
+module_platform_driver(ams_delta_nand_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Jonathan McDowell <noodles@earth.li>");
diff --git a/drivers/mtd/nand/atmel_nand.c b/drivers/mtd/nand/atmel_nand.c
index 23e5d77c39fc..4dd056e2e16a 100644
--- a/drivers/mtd/nand/atmel_nand.c
+++ b/drivers/mtd/nand/atmel_nand.c
@@ -113,7 +113,7 @@ static int cpu_has_dma(void)
  */
 static void atmel_nand_enable(struct atmel_nand_host *host)
 {
-	if (host->board->enable_pin)
+	if (gpio_is_valid(host->board->enable_pin))
 		gpio_set_value(host->board->enable_pin, 0);
 }
 
@@ -122,7 +122,7 @@ static void atmel_nand_enable(struct atmel_nand_host *host)
  */
 static void atmel_nand_disable(struct atmel_nand_host *host)
 {
-	if (host->board->enable_pin)
+	if (gpio_is_valid(host->board->enable_pin))
 		gpio_set_value(host->board->enable_pin, 1);
 }
 
@@ -492,7 +492,7 @@ static int __init atmel_nand_probe(struct platform_device *pdev)
 	nand_chip->IO_ADDR_W = host->io_base;
 	nand_chip->cmd_ctrl = atmel_nand_cmd_ctrl;
 
-	if (host->board->rdy_pin)
+	if (gpio_is_valid(host->board->rdy_pin))
 		nand_chip->dev_ready = atmel_nand_device_ready;
 
 	regs = platform_get_resource(pdev, IORESOURCE_MEM, 1);
@@ -530,7 +530,7 @@ static int __init atmel_nand_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, host);
 	atmel_nand_enable(host);
 
-	if (host->board->det_pin) {
+	if (gpio_is_valid(host->board->det_pin)) {
 		if (gpio_get_value(host->board->det_pin)) {
 			printk(KERN_INFO "No SmartMedia card inserted.\n");
 			res = -ENXIO;
diff --git a/drivers/mtd/nand/bcm_umi_nand.c b/drivers/mtd/nand/bcm_umi_nand.c
index 46b58d672847..50387fd4009b 100644
--- a/drivers/mtd/nand/bcm_umi_nand.c
+++ b/drivers/mtd/nand/bcm_umi_nand.c
@@ -546,18 +546,7 @@ static struct platform_driver nand_driver = {
 	.resume = bcm_umi_nand_resume,
 };
 
-static int __init nand_init(void)
-{
-	return platform_driver_register(&nand_driver);
-}
-
-static void __exit nand_exit(void)
-{
-	platform_driver_unregister(&nand_driver);
-}
-
-module_init(nand_init);
-module_exit(nand_exit);
+module_platform_driver(nand_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Broadcom");
diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c
index c153e1f77f90..6e566156956f 100644
--- a/drivers/mtd/nand/davinci_nand.c
+++ b/drivers/mtd/nand/davinci_nand.c
@@ -675,7 +675,9 @@ static int __init nand_davinci_probe(struct platform_device *pdev)
 
 	davinci_nand_writel(info, A1CR_OFFSET + info->core_chipsel * 4, val);
 
-	ret = davinci_aemif_setup_timing(info->timing, info->base,
+	ret = 0;
+	if (info->timing)
+		ret = davinci_aemif_setup_timing(info->timing, info->base,
 							info->core_chipsel);
 	if (ret < 0) {
 		dev_dbg(&pdev->dev, "NAND timing values setup fail\n");
diff --git a/drivers/mtd/nand/diskonchip.c b/drivers/mtd/nand/diskonchip.c
index 5780dbab6113..df921e7a496c 100644
--- a/drivers/mtd/nand/diskonchip.c
+++ b/drivers/mtd/nand/diskonchip.c
@@ -1072,7 +1072,7 @@ static int __init find_media_headers(struct mtd_info *mtd, u_char *buf, const ch
 	size_t retlen;
 
 	for (offs = 0; offs < mtd->size; offs += mtd->erasesize) {
-		ret = mtd->read(mtd, offs, mtd->writesize, &retlen, buf);
+		ret = mtd_read(mtd, offs, mtd->writesize, &retlen, buf);
 		if (retlen != mtd->writesize)
 			continue;
 		if (ret) {
@@ -1097,7 +1097,7 @@ static int __init find_media_headers(struct mtd_info *mtd, u_char *buf, const ch
 	/* Only one mediaheader was found.  We want buf to contain a
 	   mediaheader on return, so we'll have to re-read the one we found. */
 	offs = doc->mh0_page << this->page_shift;
-	ret = mtd->read(mtd, offs, mtd->writesize, &retlen, buf);
+	ret = mtd_read(mtd, offs, mtd->writesize, &retlen, buf);
 	if (retlen != mtd->writesize) {
 		/* Insanity.  Give up. */
 		printk(KERN_ERR "Read DiskOnChip Media Header once, but can't reread it???\n");
diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c
index eedd8ee2c9ac..7195ee6efe12 100644
--- a/drivers/mtd/nand/fsl_elbc_nand.c
+++ b/drivers/mtd/nand/fsl_elbc_nand.c
@@ -166,15 +166,22 @@ static void set_addr(struct mtd_info *mtd, int column, int page_addr, int oob)
 
 	elbc_fcm_ctrl->page = page_addr;
 
-	out_be32(&lbc->fbar,
-	         page_addr >> (chip->phys_erase_shift - chip->page_shift));
-
 	if (priv->page_size) {
+		/*
+		 * large page size chip : FPAR[PI] save the lowest 6 bits,
+		 *                        FBAR[BLK] save the other bits.
+		 */
+		out_be32(&lbc->fbar, page_addr >> 6);
 		out_be32(&lbc->fpar,
 		         ((page_addr << FPAR_LP_PI_SHIFT) & FPAR_LP_PI) |
 		         (oob ? FPAR_LP_MS : 0) | column);
 		buf_num = (page_addr & 1) << 2;
 	} else {
+		/*
+		 * small page size chip : FPAR[PI] save the lowest 5 bits,
+		 *                        FBAR[BLK] save the other bits.
+		 */
+		out_be32(&lbc->fbar, page_addr >> 5);
 		out_be32(&lbc->fpar,
 		         ((page_addr << FPAR_SP_PI_SHIFT) & FPAR_SP_PI) |
 		         (oob ? FPAR_SP_MS : 0) | column);
@@ -349,20 +356,22 @@ static void fsl_elbc_cmdfunc(struct mtd_info *mtd, unsigned int command,
 		fsl_elbc_run_command(mtd);
 		return;
 
-	/* READID must read all 5 possible bytes while CEB is active */
 	case NAND_CMD_READID:
-		dev_vdbg(priv->dev, "fsl_elbc_cmdfunc: NAND_CMD_READID.\n");
+	case NAND_CMD_PARAM:
+		dev_vdbg(priv->dev, "fsl_elbc_cmdfunc: NAND_CMD %x\n", command);
 
 		out_be32(&lbc->fir, (FIR_OP_CM0 << FIR_OP0_SHIFT) |
 		                    (FIR_OP_UA  << FIR_OP1_SHIFT) |
 		                    (FIR_OP_RBW << FIR_OP2_SHIFT));
-		out_be32(&lbc->fcr, NAND_CMD_READID << FCR_CMD0_SHIFT);
-		/* nand_get_flash_type() reads 8 bytes of entire ID string */
-		out_be32(&lbc->fbcr, 8);
-		elbc_fcm_ctrl->read_bytes = 8;
+		out_be32(&lbc->fcr, command << FCR_CMD0_SHIFT);
+		/*
+		 * although currently it's 8 bytes for READID, we always read
+		 * the maximum 256 bytes(for PARAM)
+		 */
+		out_be32(&lbc->fbcr, 256);
+		elbc_fcm_ctrl->read_bytes = 256;
 		elbc_fcm_ctrl->use_mdr = 1;
-		elbc_fcm_ctrl->mdr = 0;
-
+		elbc_fcm_ctrl->mdr = column;
 		set_addr(mtd, 0, 0, 0);
 		fsl_elbc_run_command(mtd);
 		return;
@@ -407,9 +416,17 @@ static void fsl_elbc_cmdfunc(struct mtd_info *mtd, unsigned int command,
 		         page_addr, column);
 
 		elbc_fcm_ctrl->column = column;
-		elbc_fcm_ctrl->oob = 0;
 		elbc_fcm_ctrl->use_mdr = 1;
 
+		if (column >= mtd->writesize) {
+			/* OOB area */
+			column -= mtd->writesize;
+			elbc_fcm_ctrl->oob = 1;
+		} else {
+			WARN_ON(column != 0);
+			elbc_fcm_ctrl->oob = 0;
+		}
+
 		fcr = (NAND_CMD_STATUS   << FCR_CMD1_SHIFT) |
 		      (NAND_CMD_SEQIN    << FCR_CMD2_SHIFT) |
 		      (NAND_CMD_PAGEPROG << FCR_CMD3_SHIFT);
@@ -434,16 +451,12 @@ static void fsl_elbc_cmdfunc(struct mtd_info *mtd, unsigned int command,
 			         (FIR_OP_CW1 << FIR_OP6_SHIFT) |
 			         (FIR_OP_RS  << FIR_OP7_SHIFT));
 
-			if (column >= mtd->writesize) {
+			if (elbc_fcm_ctrl->oob)
 				/* OOB area --> READOOB */
-				column -= mtd->writesize;
 				fcr |= NAND_CMD_READOOB << FCR_CMD0_SHIFT;
-				elbc_fcm_ctrl->oob = 1;
-			} else {
-				WARN_ON(column != 0);
+			else
 				/* First 256 bytes --> READ0 */
 				fcr |= NAND_CMD_READ0 << FCR_CMD0_SHIFT;
-			}
 		}
 
 		out_be32(&lbc->fcr, fcr);
@@ -463,7 +476,8 @@ static void fsl_elbc_cmdfunc(struct mtd_info *mtd, unsigned int command,
 		 */
 		if (elbc_fcm_ctrl->oob || elbc_fcm_ctrl->column != 0 ||
 		    elbc_fcm_ctrl->index != mtd->writesize + mtd->oobsize)
-			out_be32(&lbc->fbcr, elbc_fcm_ctrl->index);
+			out_be32(&lbc->fbcr,
+				elbc_fcm_ctrl->index - elbc_fcm_ctrl->column);
 		else
 			out_be32(&lbc->fbcr, 0);
 
@@ -659,9 +673,7 @@ static int fsl_elbc_chip_init_tail(struct mtd_info *mtd)
 	if (chip->pagemask & 0xff000000)
 		al++;
 
-	/* add to ECCM mode set in fsl_elbc_init */
-	priv->fmr |= (12 << FMR_CWTO_SHIFT) |  /* Timeout > 12 ms */
-	             (al << FMR_AL_SHIFT);
+	priv->fmr |= al << FMR_AL_SHIFT;
 
 	dev_dbg(priv->dev, "fsl_elbc_init: nand->numchips = %d\n",
 	        chip->numchips);
@@ -764,8 +776,10 @@ static int fsl_elbc_chip_init(struct fsl_elbc_mtd *priv)
 	priv->mtd.priv = chip;
 	priv->mtd.owner = THIS_MODULE;
 
-	/* Set the ECCM according to the settings in bootloader.*/
-	priv->fmr = in_be32(&lbc->fmr) & FMR_ECCM;
+	/* set timeout to maximum */
+	priv->fmr = 15 << FMR_CWTO_SHIFT;
+	if (in_be32(&lbc->bank[priv->bank].or) & OR_FCM_PGS)
+		priv->fmr |= FMR_ECCM;
 
 	/* fill in nand_chip structure */
 	/* set up function call table */
@@ -971,18 +985,7 @@ static struct platform_driver fsl_elbc_nand_driver = {
 	.remove = fsl_elbc_nand_remove,
 };
 
-static int __init fsl_elbc_nand_init(void)
-{
-	return platform_driver_register(&fsl_elbc_nand_driver);
-}
-
-static void __exit fsl_elbc_nand_exit(void)
-{
-	platform_driver_unregister(&fsl_elbc_nand_driver);
-}
-
-module_init(fsl_elbc_nand_init);
-module_exit(fsl_elbc_nand_exit);
+module_platform_driver(fsl_elbc_nand_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Freescale");
diff --git a/drivers/mtd/nand/fsl_upm.c b/drivers/mtd/nand/fsl_upm.c
index b4f3cc9f32fb..45df542b9c61 100644
--- a/drivers/mtd/nand/fsl_upm.c
+++ b/drivers/mtd/nand/fsl_upm.c
@@ -353,17 +353,7 @@ static struct platform_driver of_fun_driver = {
 	.remove		= __devexit_p(fun_remove),
 };
 
-static int __init fun_module_init(void)
-{
-	return platform_driver_register(&of_fun_driver);
-}
-module_init(fun_module_init);
-
-static void __exit fun_module_exit(void)
-{
-	platform_driver_unregister(&of_fun_driver);
-}
-module_exit(fun_module_exit);
+module_platform_driver(of_fun_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Anton Vorontsov <avorontsov@ru.mvista.com>");
diff --git a/drivers/mtd/nand/gpio.c b/drivers/mtd/nand/gpio.c
index 2c2060b2800e..27000a5f5f47 100644
--- a/drivers/mtd/nand/gpio.c
+++ b/drivers/mtd/nand/gpio.c
@@ -27,6 +27,9 @@
 #include <linux/mtd/nand.h>
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/nand-gpio.h>
+#include <linux/of.h>
+#include <linux/of_address.h>
+#include <linux/of_gpio.h>
 
 struct gpiomtd {
 	void __iomem		*io_sync;
@@ -171,6 +174,96 @@ static int gpio_nand_devready(struct mtd_info *mtd)
 	return gpio_get_value(gpiomtd->plat.gpio_rdy);
 }
 
+#ifdef CONFIG_OF
+static const struct of_device_id gpio_nand_id_table[] = {
+	{ .compatible = "gpio-control-nand" },
+	{}
+};
+MODULE_DEVICE_TABLE(of, gpio_nand_id_table);
+
+static int gpio_nand_get_config_of(const struct device *dev,
+				   struct gpio_nand_platdata *plat)
+{
+	u32 val;
+
+	if (!of_property_read_u32(dev->of_node, "bank-width", &val)) {
+		if (val == 2) {
+			plat->options |= NAND_BUSWIDTH_16;
+		} else if (val != 1) {
+			dev_err(dev, "invalid bank-width %u\n", val);
+			return -EINVAL;
+		}
+	}
+
+	plat->gpio_rdy = of_get_gpio(dev->of_node, 0);
+	plat->gpio_nce = of_get_gpio(dev->of_node, 1);
+	plat->gpio_ale = of_get_gpio(dev->of_node, 2);
+	plat->gpio_cle = of_get_gpio(dev->of_node, 3);
+	plat->gpio_nwp = of_get_gpio(dev->of_node, 4);
+
+	if (!of_property_read_u32(dev->of_node, "chip-delay", &val))
+		plat->chip_delay = val;
+
+	return 0;
+}
+
+static struct resource *gpio_nand_get_io_sync_of(struct platform_device *pdev)
+{
+	struct resource *r = devm_kzalloc(&pdev->dev, sizeof(*r), GFP_KERNEL);
+	u64 addr;
+
+	if (!r || of_property_read_u64(pdev->dev.of_node,
+				       "gpio-control-nand,io-sync-reg", &addr))
+		return NULL;
+
+	r->start = addr;
+	r->end = r->start + 0x3;
+	r->flags = IORESOURCE_MEM;
+
+	return r;
+}
+#else /* CONFIG_OF */
+#define gpio_nand_id_table NULL
+static inline int gpio_nand_get_config_of(const struct device *dev,
+					  struct gpio_nand_platdata *plat)
+{
+	return -ENOSYS;
+}
+
+static inline struct resource *
+gpio_nand_get_io_sync_of(struct platform_device *pdev)
+{
+	return NULL;
+}
+#endif /* CONFIG_OF */
+
+static inline int gpio_nand_get_config(const struct device *dev,
+				       struct gpio_nand_platdata *plat)
+{
+	int ret = gpio_nand_get_config_of(dev, plat);
+
+	if (!ret)
+		return ret;
+
+	if (dev->platform_data) {
+		memcpy(plat, dev->platform_data, sizeof(*plat));
+		return 0;
+	}
+
+	return -EINVAL;
+}
+
+static inline struct resource *
+gpio_nand_get_io_sync(struct platform_device *pdev)
+{
+	struct resource *r = gpio_nand_get_io_sync_of(pdev);
+
+	if (r)
+		return r;
+
+	return platform_get_resource(pdev, IORESOURCE_MEM, 1);
+}
+
 static int __devexit gpio_nand_remove(struct platform_device *dev)
 {
 	struct gpiomtd *gpiomtd = platform_get_drvdata(dev);
@@ -178,7 +271,7 @@ static int __devexit gpio_nand_remove(struct platform_device *dev)
 
 	nand_release(&gpiomtd->mtd_info);
 
-	res = platform_get_resource(dev, IORESOURCE_MEM, 1);
+	res = gpio_nand_get_io_sync(dev);
 	iounmap(gpiomtd->io_sync);
 	if (res)
 		release_mem_region(res->start, resource_size(res));
@@ -226,9 +319,10 @@ static int __devinit gpio_nand_probe(struct platform_device *dev)
 	struct gpiomtd *gpiomtd;
 	struct nand_chip *this;
 	struct resource *res0, *res1;
-	int ret;
+	struct mtd_part_parser_data ppdata = {};
+	int ret = 0;
 
-	if (!dev->dev.platform_data)
+	if (!dev->dev.of_node && !dev->dev.platform_data)
 		return -EINVAL;
 
 	res0 = platform_get_resource(dev, IORESOURCE_MEM, 0);
@@ -248,7 +342,7 @@ static int __devinit gpio_nand_probe(struct platform_device *dev)
 		goto err_map;
 	}
 
-	res1 = platform_get_resource(dev, IORESOURCE_MEM, 1);
+	res1 = gpio_nand_get_io_sync(dev);
 	if (res1) {
 		gpiomtd->io_sync = request_and_remap(res1, 4, "NAND sync", &ret);
 		if (!gpiomtd->io_sync) {
@@ -257,7 +351,9 @@ static int __devinit gpio_nand_probe(struct platform_device *dev)
 		}
 	}
 
-	memcpy(&gpiomtd->plat, dev->dev.platform_data, sizeof(gpiomtd->plat));
+	ret = gpio_nand_get_config(&dev->dev, &gpiomtd->plat);
+	if (ret)
+		goto err_nce;
 
 	ret = gpio_request(gpiomtd->plat.gpio_nce, "NAND NCE");
 	if (ret)
@@ -316,8 +412,12 @@ static int __devinit gpio_nand_probe(struct platform_device *dev)
 		gpiomtd->plat.adjust_parts(&gpiomtd->plat,
 					   gpiomtd->mtd_info.size);
 
-	mtd_device_register(&gpiomtd->mtd_info, gpiomtd->plat.parts,
-			    gpiomtd->plat.num_parts);
+	ppdata.of_node = dev->dev.of_node;
+	ret = mtd_device_parse_register(&gpiomtd->mtd_info, NULL, &ppdata,
+					gpiomtd->plat.parts,
+					gpiomtd->plat.num_parts);
+	if (ret)
+		goto err_wp;
 	platform_set_drvdata(dev, gpiomtd);
 
 	return 0;
@@ -352,6 +452,7 @@ static struct platform_driver gpio_nand_driver = {
 	.remove		= gpio_nand_remove,
 	.driver		= {
 		.name	= "gpio-nand",
+		.of_match_table = gpio_nand_id_table,
 	},
 };
 
diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
index de4db7604a3f..2a56fc6f399a 100644
--- a/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
+++ b/drivers/mtd/nand/gpmi-nand/gpmi-lib.c
@@ -126,7 +126,7 @@ int gpmi_init(struct gpmi_nand_data *this)
 	struct resources *r = &this->resources;
 	int ret;
 
-	ret = clk_enable(r->clock);
+	ret = clk_prepare_enable(r->clock);
 	if (ret)
 		goto err_out;
 	ret = gpmi_reset_block(r->gpmi_regs, false);
@@ -146,7 +146,7 @@ int gpmi_init(struct gpmi_nand_data *this)
 	/* Select BCH ECC. */
 	writel(BM_GPMI_CTRL1_BCH_MODE, r->gpmi_regs + HW_GPMI_CTRL1_SET);
 
-	clk_disable(r->clock);
+	clk_disable_unprepare(r->clock);
 	return 0;
 err_out:
 	return ret;
@@ -202,7 +202,7 @@ int bch_set_geometry(struct gpmi_nand_data *this)
 	ecc_strength  = bch_geo->ecc_strength >> 1;
 	page_size     = bch_geo->page_size;
 
-	ret = clk_enable(r->clock);
+	ret = clk_prepare_enable(r->clock);
 	if (ret)
 		goto err_out;
 
@@ -229,7 +229,7 @@ int bch_set_geometry(struct gpmi_nand_data *this)
 	writel(BM_BCH_CTRL_COMPLETE_IRQ_EN,
 				r->bch_regs + HW_BCH_CTRL_SET);
 
-	clk_disable(r->clock);
+	clk_disable_unprepare(r->clock);
 	return 0;
 err_out:
 	return ret;
@@ -704,7 +704,7 @@ void gpmi_begin(struct gpmi_nand_data *this)
 	int ret;
 
 	/* Enable the clock. */
-	ret = clk_enable(r->clock);
+	ret = clk_prepare_enable(r->clock);
 	if (ret) {
 		pr_err("We failed in enable the clk\n");
 		goto err_out;
@@ -773,7 +773,7 @@ err_out:
 void gpmi_end(struct gpmi_nand_data *this)
 {
 	struct resources *r = &this->resources;
-	clk_disable(r->clock);
+	clk_disable_unprepare(r->clock);
 }
 
 /* Clears a BCH interrupt. */
diff --git a/drivers/mtd/nand/jz4740_nand.c b/drivers/mtd/nand/jz4740_nand.c
index e2664073a89b..ac3b9f255e00 100644
--- a/drivers/mtd/nand/jz4740_nand.c
+++ b/drivers/mtd/nand/jz4740_nand.c
@@ -423,17 +423,7 @@ static struct platform_driver jz_nand_driver = {
 	},
 };
 
-static int __init jz_nand_init(void)
-{
-	return platform_driver_register(&jz_nand_driver);
-}
-module_init(jz_nand_init);
-
-static void __exit jz_nand_exit(void)
-{
-	platform_driver_unregister(&jz_nand_driver);
-}
-module_exit(jz_nand_exit);
+module_platform_driver(jz_nand_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
diff --git a/drivers/mtd/nand/mpc5121_nfc.c b/drivers/mtd/nand/mpc5121_nfc.c
index 5ede64706346..c240cf1af961 100644
--- a/drivers/mtd/nand/mpc5121_nfc.c
+++ b/drivers/mtd/nand/mpc5121_nfc.c
@@ -879,19 +879,7 @@ static struct platform_driver mpc5121_nfc_driver = {
 	},
 };
 
-static int __init mpc5121_nfc_init(void)
-{
-	return platform_driver_register(&mpc5121_nfc_driver);
-}
-
-module_init(mpc5121_nfc_init);
-
-static void __exit mpc5121_nfc_cleanup(void)
-{
-	platform_driver_unregister(&mpc5121_nfc_driver);
-}
-
-module_exit(mpc5121_nfc_cleanup);
+module_platform_driver(mpc5121_nfc_driver);
 
 MODULE_AUTHOR("Freescale Semiconductor, Inc.");
 MODULE_DESCRIPTION("MPC5121 NAND MTD driver");
diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c
index 3ed9c5e4d34e..35b4565050f1 100644
--- a/drivers/mtd/nand/nand_base.c
+++ b/drivers/mtd/nand/nand_base.c
@@ -3132,8 +3132,8 @@ ident_done:
 	 * Bad block marker is stored in the last page of each block
 	 * on Samsung and Hynix MLC devices; stored in first two pages
 	 * of each block on Micron devices with 2KiB pages and on
-	 * SLC Samsung, Hynix, Toshiba and AMD/Spansion. All others scan
-	 * only the first page.
+	 * SLC Samsung, Hynix, Toshiba, AMD/Spansion, and Macronix.
+	 * All others scan only the first page.
 	 */
 	if ((chip->cellinfo & NAND_CI_CELLTYPE_MSK) &&
 			(*maf_id == NAND_MFR_SAMSUNG ||
@@ -3143,7 +3143,8 @@ ident_done:
 				(*maf_id == NAND_MFR_SAMSUNG ||
 				 *maf_id == NAND_MFR_HYNIX ||
 				 *maf_id == NAND_MFR_TOSHIBA ||
-				 *maf_id == NAND_MFR_AMD)) ||
+				 *maf_id == NAND_MFR_AMD ||
+				 *maf_id == NAND_MFR_MACRONIX)) ||
 			(mtd->writesize == 2048 &&
 			 *maf_id == NAND_MFR_MICRON))
 		chip->bbt_options |= NAND_BBT_SCAN2NDPAGE;
diff --git a/drivers/mtd/nand/nand_bbt.c b/drivers/mtd/nand/nand_bbt.c
index 69148ae3bf58..20a112f591fe 100644
--- a/drivers/mtd/nand/nand_bbt.c
+++ b/drivers/mtd/nand/nand_bbt.c
@@ -201,7 +201,7 @@ static int read_bbt(struct mtd_info *mtd, uint8_t *buf, int page, int num,
 			from += marker_len;
 			marker_len = 0;
 		}
-		res = mtd->read(mtd, from, len, &retlen, buf);
+		res = mtd_read(mtd, from, len, &retlen, buf);
 		if (res < 0) {
 			if (mtd_is_eccerr(res)) {
 				pr_info("nand_bbt: ECC error in BBT at "
@@ -298,7 +298,7 @@ static int scan_read_raw_data(struct mtd_info *mtd, uint8_t *buf, loff_t offs,
 	if (td->options & NAND_BBT_VERSION)
 		len++;
 
-	return mtd->read(mtd, offs, len, &retlen, buf);
+	return mtd_read(mtd, offs, len, &retlen, buf);
 }
 
 /* Scan read raw data from flash */
@@ -317,7 +317,7 @@ static int scan_read_raw_oob(struct mtd_info *mtd, uint8_t *buf, loff_t offs,
 		ops.len = min(len, (size_t)mtd->writesize);
 		ops.oobbuf = buf + ops.len;
 
-		res = mtd->read_oob(mtd, offs, &ops);
+		res = mtd_read_oob(mtd, offs, &ops);
 
 		if (res)
 			return res;
@@ -350,7 +350,7 @@ static int scan_write_bbt(struct mtd_info *mtd, loff_t offs, size_t len,
 	ops.oobbuf = oob;
 	ops.len = len;
 
-	return mtd->write_oob(mtd, offs, &ops);
+	return mtd_write_oob(mtd, offs, &ops);
 }
 
 static u32 bbt_get_ver_offs(struct mtd_info *mtd, struct nand_bbt_descr *td)
@@ -434,7 +434,7 @@ static int scan_block_fast(struct mtd_info *mtd, struct nand_bbt_descr *bd,
 		 * Read the full oob until read_oob is fixed to handle single
 		 * byte reads for 16 bit buswidth.
 		 */
-		ret = mtd->read_oob(mtd, offs, &ops);
+		ret = mtd_read_oob(mtd, offs, &ops);
 		/* Ignore ECC errors when checking for BBM */
 		if (ret && !mtd_is_bitflip_or_eccerr(ret))
 			return ret;
@@ -756,7 +756,7 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
 			/* Make it block aligned */
 			to &= ~((loff_t)((1 << this->bbt_erase_shift) - 1));
 			len = 1 << this->bbt_erase_shift;
-			res = mtd->read(mtd, to, len, &retlen, buf);
+			res = mtd_read(mtd, to, len, &retlen, buf);
 			if (res < 0) {
 				if (retlen != len) {
 					pr_info("nand_bbt: error reading block "
@@ -769,7 +769,7 @@ static int write_bbt(struct mtd_info *mtd, uint8_t *buf,
 			/* Read oob data */
 			ops.ooblen = (len >> this->page_shift) * mtd->oobsize;
 			ops.oobbuf = &buf[len];
-			res = mtd->read_oob(mtd, to + mtd->writesize, &ops);
+			res = mtd_read_oob(mtd, to + mtd->writesize, &ops);
 			if (res < 0 || ops.oobretlen != ops.ooblen)
 				goto outerr;
 
diff --git a/drivers/mtd/nand/nand_ids.c b/drivers/mtd/nand/nand_ids.c
index 00cf1b0d6053..af4fe8ca7b5e 100644
--- a/drivers/mtd/nand/nand_ids.c
+++ b/drivers/mtd/nand/nand_ids.c
@@ -73,11 +73,12 @@ struct nand_flash_dev nand_flash_ids[] = {
 #define LP_OPTIONS (NAND_SAMSUNG_LP_OPTIONS | NAND_NO_READRDY | NAND_NO_AUTOINCR)
 #define LP_OPTIONS16 (LP_OPTIONS | NAND_BUSWIDTH_16)
 
-	/*512 Megabit */
+	/* 512 Megabit */
 	{"NAND 64MiB 1,8V 8-bit",	0xA2, 0,  64, 0, LP_OPTIONS},
 	{"NAND 64MiB 1,8V 8-bit",	0xA0, 0,  64, 0, LP_OPTIONS},
 	{"NAND 64MiB 3,3V 8-bit",	0xF2, 0,  64, 0, LP_OPTIONS},
 	{"NAND 64MiB 3,3V 8-bit",	0xD0, 0,  64, 0, LP_OPTIONS},
+	{"NAND 64MiB 3,3V 8-bit",	0xF0, 0,  64, 0, LP_OPTIONS},
 	{"NAND 64MiB 1,8V 16-bit",	0xB2, 0,  64, 0, LP_OPTIONS16},
 	{"NAND 64MiB 1,8V 16-bit",	0xB0, 0,  64, 0, LP_OPTIONS16},
 	{"NAND 64MiB 3,3V 16-bit",	0xC2, 0,  64, 0, LP_OPTIONS16},
@@ -176,6 +177,7 @@ struct nand_manufacturers nand_manuf_ids[] = {
 	{NAND_MFR_HYNIX, "Hynix"},
 	{NAND_MFR_MICRON, "Micron"},
 	{NAND_MFR_AMD, "AMD"},
+	{NAND_MFR_MACRONIX, "Macronix"},
 	{0x0, "Unknown"}
 };
 
diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c
index 34c03be77301..261f478f8cc3 100644
--- a/drivers/mtd/nand/nandsim.c
+++ b/drivers/mtd/nand/nandsim.c
@@ -737,7 +737,7 @@ static int parse_badblocks(struct nandsim *ns, struct mtd_info *mtd)
 			return -EINVAL;
 		}
 		offset = erase_block_no * ns->geom.secsz;
-		if (mtd->block_markbad(mtd, offset)) {
+		if (mtd_block_markbad(mtd, offset)) {
 			NS_ERR("invalid badblocks.\n");
 			return -EINVAL;
 		}
diff --git a/drivers/mtd/nand/ndfc.c b/drivers/mtd/nand/ndfc.c
index f8aacf48ecdd..ec688548c880 100644
--- a/drivers/mtd/nand/ndfc.c
+++ b/drivers/mtd/nand/ndfc.c
@@ -294,18 +294,7 @@ static struct platform_driver ndfc_driver = {
 	.remove = __devexit_p(ndfc_remove),
 };
 
-static int __init ndfc_nand_init(void)
-{
-	return platform_driver_register(&ndfc_driver);
-}
-
-static void __exit ndfc_nand_exit(void)
-{
-	platform_driver_unregister(&ndfc_driver);
-}
-
-module_init(ndfc_nand_init);
-module_exit(ndfc_nand_exit);
+module_platform_driver(ndfc_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Thomas Gleixner <tglx@linutronix.de>");
diff --git a/drivers/mtd/nand/nomadik_nand.c b/drivers/mtd/nand/nomadik_nand.c
index b463ecfb4c1a..a86aa812ca13 100644
--- a/drivers/mtd/nand/nomadik_nand.c
+++ b/drivers/mtd/nand/nomadik_nand.c
@@ -201,7 +201,7 @@ static int nomadik_nand_suspend(struct device *dev)
 	struct nomadik_nand_host *host = dev_get_drvdata(dev);
 	int ret = 0;
 	if (host)
-		ret = host->mtd.suspend(&host->mtd);
+		ret = mtd_suspend(&host->mtd);
 	return ret;
 }
 
@@ -209,7 +209,7 @@ static int nomadik_nand_resume(struct device *dev)
 {
 	struct nomadik_nand_host *host = dev_get_drvdata(dev);
 	if (host)
-		host->mtd.resume(&host->mtd);
+		mtd_resume(&host->mtd);
 	return 0;
 }
 
@@ -228,19 +228,7 @@ static struct platform_driver nomadik_nand_driver = {
 	},
 };
 
-static int __init nand_nomadik_init(void)
-{
-	pr_info("Nomadik NAND driver\n");
-	return platform_driver_register(&nomadik_nand_driver);
-}
-
-static void __exit nand_nomadik_exit(void)
-{
-	platform_driver_unregister(&nomadik_nand_driver);
-}
-
-module_init(nand_nomadik_init);
-module_exit(nand_nomadik_exit);
+module_platform_driver(nomadik_nand_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("ST Microelectronics (sachin.verma@st.com)");
diff --git a/drivers/mtd/nand/nuc900_nand.c b/drivers/mtd/nand/nuc900_nand.c
index fa8faedfad6e..8febe46e1105 100644
--- a/drivers/mtd/nand/nuc900_nand.c
+++ b/drivers/mtd/nand/nuc900_nand.c
@@ -364,18 +364,7 @@ static struct platform_driver nuc900_nand_driver = {
 	},
 };
 
-static int __init nuc900_nand_init(void)
-{
-	return platform_driver_register(&nuc900_nand_driver);
-}
-
-static void __exit nuc900_nand_exit(void)
-{
-	platform_driver_unregister(&nuc900_nand_driver);
-}
-
-module_init(nuc900_nand_init);
-module_exit(nuc900_nand_exit);
+module_platform_driver(nuc900_nand_driver);
 
 MODULE_AUTHOR("Wan ZongShun <mcuos.com@gmail.com>");
 MODULE_DESCRIPTION("w90p910/NUC9xx nand driver!");
diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c
index f745f00f3167..b3a883e2a22f 100644
--- a/drivers/mtd/nand/omap2.c
+++ b/drivers/mtd/nand/omap2.c
@@ -1145,20 +1145,7 @@ static struct platform_driver omap_nand_driver = {
 	},
 };
 
-static int __init omap_nand_init(void)
-{
-	pr_info("%s driver initializing\n", DRIVER_NAME);
-
-	return platform_driver_register(&omap_nand_driver);
-}
-
-static void __exit omap_nand_exit(void)
-{
-	platform_driver_unregister(&omap_nand_driver);
-}
-
-module_init(omap_nand_init);
-module_exit(omap_nand_exit);
+module_platform_driver(omap_nand_driver);
 
 MODULE_ALIAS("platform:" DRIVER_NAME);
 MODULE_LICENSE("GPL");
diff --git a/drivers/mtd/nand/pasemi_nand.c b/drivers/mtd/nand/pasemi_nand.c
index a97264ececdb..974dbf8251c9 100644
--- a/drivers/mtd/nand/pasemi_nand.c
+++ b/drivers/mtd/nand/pasemi_nand.c
@@ -230,17 +230,7 @@ static struct platform_driver pasemi_nand_driver =
 	.remove		= pasemi_nand_remove,
 };
 
-static int __init pasemi_nand_init(void)
-{
-	return platform_driver_register(&pasemi_nand_driver);
-}
-module_init(pasemi_nand_init);
-
-static void __exit pasemi_nand_exit(void)
-{
-	platform_driver_unregister(&pasemi_nand_driver);
-}
-module_exit(pasemi_nand_exit);
+module_platform_driver(pasemi_nand_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Egor Martovetsky <egor@pasemi.com>");
diff --git a/drivers/mtd/nand/plat_nand.c b/drivers/mtd/nand/plat_nand.c
index ea8e1234e0e2..7f2da6953357 100644
--- a/drivers/mtd/nand/plat_nand.c
+++ b/drivers/mtd/nand/plat_nand.c
@@ -148,18 +148,7 @@ static struct platform_driver plat_nand_driver = {
 	},
 };
 
-static int __init plat_nand_init(void)
-{
-	return platform_driver_register(&plat_nand_driver);
-}
-
-static void __exit plat_nand_exit(void)
-{
-	platform_driver_unregister(&plat_nand_driver);
-}
-
-module_init(plat_nand_init);
-module_exit(plat_nand_exit);
+module_platform_driver(plat_nand_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Vitaly Wool");
diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c
index 9eb7f879969e..8544d6bf50a0 100644
--- a/drivers/mtd/nand/pxa3xx_nand.c
+++ b/drivers/mtd/nand/pxa3xx_nand.c
@@ -1258,7 +1258,7 @@ static int pxa3xx_nand_suspend(struct platform_device *pdev, pm_message_t state)
 
 	for (cs = 0; cs < pdata->num_cs; cs++) {
 		mtd = info->host[cs]->mtd;
-		mtd->suspend(mtd);
+		mtd_suspend(mtd);
 	}
 
 	return 0;
@@ -1291,7 +1291,7 @@ static int pxa3xx_nand_resume(struct platform_device *pdev)
 	nand_writel(info, NDSR, NDSR_MASK);
 	for (cs = 0; cs < pdata->num_cs; cs++) {
 		mtd = info->host[cs]->mtd;
-		mtd->resume(mtd);
+		mtd_resume(mtd);
 	}
 
 	return 0;
@@ -1311,17 +1311,7 @@ static struct platform_driver pxa3xx_nand_driver = {
 	.resume		= pxa3xx_nand_resume,
 };
 
-static int __init pxa3xx_nand_init(void)
-{
-	return platform_driver_register(&pxa3xx_nand_driver);
-}
-module_init(pxa3xx_nand_init);
-
-static void __exit pxa3xx_nand_exit(void)
-{
-	platform_driver_unregister(&pxa3xx_nand_driver);
-}
-module_exit(pxa3xx_nand_exit);
+module_platform_driver(pxa3xx_nand_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("PXA3xx NAND controller driver");
diff --git a/drivers/mtd/nand/sharpsl.c b/drivers/mtd/nand/sharpsl.c
index 619d2a504788..b175c0fd8b93 100644
--- a/drivers/mtd/nand/sharpsl.c
+++ b/drivers/mtd/nand/sharpsl.c
@@ -230,17 +230,7 @@ static struct platform_driver sharpsl_nand_driver = {
 	.remove		= __devexit_p(sharpsl_nand_remove),
 };
 
-static int __init sharpsl_nand_init(void)
-{
-	return platform_driver_register(&sharpsl_nand_driver);
-}
-module_init(sharpsl_nand_init);
-
-static void __exit sharpsl_nand_exit(void)
-{
-	platform_driver_unregister(&sharpsl_nand_driver);
-}
-module_exit(sharpsl_nand_exit);
+module_platform_driver(sharpsl_nand_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Richard Purdie <rpurdie@rpsys.net>");
diff --git a/drivers/mtd/nand/sm_common.c b/drivers/mtd/nand/sm_common.c
index 32ae5af7444f..774c3c266713 100644
--- a/drivers/mtd/nand/sm_common.c
+++ b/drivers/mtd/nand/sm_common.c
@@ -55,7 +55,7 @@ static int sm_block_markbad(struct mtd_info *mtd, loff_t ofs)
 	ops.datbuf = NULL;
 
 
-	ret = mtd->write_oob(mtd, ofs, &ops);
+	ret = mtd_write_oob(mtd, ofs, &ops);
 	if (ret < 0 || ops.oobretlen != SM_OOB_SIZE) {
 		printk(KERN_NOTICE
 			"sm_common: can't mark sector at %i as bad\n",
diff --git a/drivers/mtd/nand/socrates_nand.c b/drivers/mtd/nand/socrates_nand.c
index 0fb24f9c2327..e02b08bcf0c0 100644
--- a/drivers/mtd/nand/socrates_nand.c
+++ b/drivers/mtd/nand/socrates_nand.c
@@ -273,18 +273,7 @@ static struct platform_driver socrates_nand_driver = {
 	.remove		= __devexit_p(socrates_nand_remove),
 };
 
-static int __init socrates_nand_init(void)
-{
-	return platform_driver_register(&socrates_nand_driver);
-}
-
-static void __exit socrates_nand_exit(void)
-{
-	platform_driver_unregister(&socrates_nand_driver);
-}
-
-module_init(socrates_nand_init);
-module_exit(socrates_nand_exit);
+module_platform_driver(socrates_nand_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Ilya Yanok");
diff --git a/drivers/mtd/nand/tmio_nand.c b/drivers/mtd/nand/tmio_nand.c
index beebd95f7690..6caa0cd9d6a7 100644
--- a/drivers/mtd/nand/tmio_nand.c
+++ b/drivers/mtd/nand/tmio_nand.c
@@ -533,18 +533,7 @@ static struct platform_driver tmio_driver = {
 	.resume		= tmio_resume,
 };
 
-static int __init tmio_init(void)
-{
-	return platform_driver_register(&tmio_driver);
-}
-
-static void __exit tmio_exit(void)
-{
-	platform_driver_unregister(&tmio_driver);
-}
-
-module_init(tmio_init);
-module_exit(tmio_exit);
+module_platform_driver(tmio_driver);
 
 MODULE_LICENSE("GPL v2");
 MODULE_AUTHOR("Ian Molton, Dirk Opfer, Chris Humbert, Dmitry Baryshkov");
diff --git a/drivers/mtd/nand/txx9ndfmc.c b/drivers/mtd/nand/txx9ndfmc.c
index ace46fdaef58..c7c4f1d11c77 100644
--- a/drivers/mtd/nand/txx9ndfmc.c
+++ b/drivers/mtd/nand/txx9ndfmc.c
@@ -298,11 +298,7 @@ static int __init txx9ndfmc_probe(struct platform_device *dev)
 	drvdata = devm_kzalloc(&dev->dev, sizeof(*drvdata), GFP_KERNEL);
 	if (!drvdata)
 		return -ENOMEM;
-	if (!devm_request_mem_region(&dev->dev, res->start,
-				     resource_size(res), dev_name(&dev->dev)))
-		return -EBUSY;
-	drvdata->base = devm_ioremap(&dev->dev, res->start,
-				     resource_size(res));
+	drvdata->base = devm_request_and_ioremap(&dev->dev, res);
 	if (!drvdata->base)
 		return -EBUSY;
 
diff --git a/drivers/mtd/nftlcore.c b/drivers/mtd/nftlcore.c
index cda77b562ad4..a75382aff5f6 100644
--- a/drivers/mtd/nftlcore.c
+++ b/drivers/mtd/nftlcore.c
@@ -56,7 +56,7 @@ static void nftl_add_mtd(struct mtd_blktrans_ops *tr, struct mtd_info *mtd)
 	if (memcmp(mtd->name, "DiskOnChip", 10))
 		return;
 
-	if (!mtd->block_isbad) {
+	if (!mtd_can_have_bb(mtd)) {
 		printk(KERN_ERR
 "NFTL no longer supports the old DiskOnChip drivers loaded via docprobe.\n"
 "Please use the new diskonchip driver under the NAND subsystem.\n");
@@ -153,7 +153,7 @@ int nftl_read_oob(struct mtd_info *mtd, loff_t offs, size_t len,
 	ops.oobbuf = buf;
 	ops.datbuf = NULL;
 
-	res = mtd->read_oob(mtd, offs & ~mask, &ops);
+	res = mtd_read_oob(mtd, offs & ~mask, &ops);
 	*retlen = ops.oobretlen;
 	return res;
 }
@@ -174,7 +174,7 @@ int nftl_write_oob(struct mtd_info *mtd, loff_t offs, size_t len,
 	ops.oobbuf = buf;
 	ops.datbuf = NULL;
 
-	res = mtd->write_oob(mtd, offs & ~mask, &ops);
+	res = mtd_write_oob(mtd, offs & ~mask, &ops);
 	*retlen = ops.oobretlen;
 	return res;
 }
@@ -198,7 +198,7 @@ static int nftl_write(struct mtd_info *mtd, loff_t offs, size_t len,
 	ops.datbuf = buf;
 	ops.len = len;
 
-	res = mtd->write_oob(mtd, offs & ~mask, &ops);
+	res = mtd_write_oob(mtd, offs & ~mask, &ops);
 	*retlen = ops.retlen;
 	return res;
 }
@@ -423,12 +423,17 @@ static u16 NFTL_foldchain (struct NFTLrecord *nftl, unsigned thisVUC, unsigned p
 		if (BlockMap[block] == BLOCK_NIL)
 			continue;
 
-		ret = mtd->read(mtd, (nftl->EraseSize * BlockMap[block]) + (block * 512),
-				512, &retlen, movebuf);
+		ret = mtd_read(mtd,
+			       (nftl->EraseSize * BlockMap[block]) + (block * 512),
+			       512,
+			       &retlen,
+			       movebuf);
 		if (ret < 0 && !mtd_is_bitflip(ret)) {
-			ret = mtd->read(mtd, (nftl->EraseSize * BlockMap[block])
-					+ (block * 512), 512, &retlen,
-					movebuf);
+			ret = mtd_read(mtd,
+				       (nftl->EraseSize * BlockMap[block]) + (block * 512),
+				       512,
+				       &retlen,
+				       movebuf);
 			if (ret != -EIO)
 				printk("Error went away on retry.\n");
 		}
@@ -771,7 +776,7 @@ static int nftl_readblock(struct mtd_blktrans_dev *mbd, unsigned long block,
 	} else {
 		loff_t ptr = (lastgoodEUN * nftl->EraseSize) + blockofs;
 		size_t retlen;
-		int res = mtd->read(mtd, ptr, 512, &retlen, buffer);
+		int res = mtd_read(mtd, ptr, 512, &retlen, buffer);
 
 		if (res < 0 && !mtd_is_bitflip(res))
 			return -EIO;
diff --git a/drivers/mtd/nftlmount.c b/drivers/mtd/nftlmount.c
index ac4092591aea..51b9d6af307f 100644
--- a/drivers/mtd/nftlmount.c
+++ b/drivers/mtd/nftlmount.c
@@ -63,8 +63,8 @@ static int find_boot_record(struct NFTLrecord *nftl)
 
 		/* Check for ANAND header first. Then can whinge if it's found but later
 		   checks fail */
-		ret = mtd->read(mtd, block * nftl->EraseSize, SECTORSIZE,
-				&retlen, buf);
+		ret = mtd_read(mtd, block * nftl->EraseSize, SECTORSIZE,
+			       &retlen, buf);
 		/* We ignore ret in case the ECC of the MediaHeader is invalid
 		   (which is apparently acceptable) */
 		if (retlen != SECTORSIZE) {
@@ -242,7 +242,8 @@ The new DiskOnChip driver already scanned the bad block table.  Just query it.
 			if (buf[i & (SECTORSIZE - 1)] != 0xff)
 				nftl->ReplUnitTable[i] = BLOCK_RESERVED;
 #endif
-			if (nftl->mbd.mtd->block_isbad(nftl->mbd.mtd, i * nftl->EraseSize))
+			if (mtd_block_isbad(nftl->mbd.mtd,
+					    i * nftl->EraseSize))
 				nftl->ReplUnitTable[i] = BLOCK_RESERVED;
 		}
 
@@ -274,7 +275,7 @@ static int check_free_sectors(struct NFTLrecord *nftl, unsigned int address, int
 	int i;
 
 	for (i = 0; i < len; i += SECTORSIZE) {
-		if (mtd->read(mtd, address, SECTORSIZE, &retlen, buf))
+		if (mtd_read(mtd, address, SECTORSIZE, &retlen, buf))
 			return -1;
 		if (memcmpb(buf, 0xff, SECTORSIZE) != 0)
 			return -1;
@@ -326,7 +327,7 @@ int NFTL_formatblock(struct NFTLrecord *nftl, int block)
 	instr->mtd = nftl->mbd.mtd;
 	instr->addr = block * nftl->EraseSize;
 	instr->len = nftl->EraseSize;
-	mtd->erase(mtd, instr);
+	mtd_erase(mtd, instr);
 
 	if (instr->state == MTD_ERASE_FAILED) {
 		printk("Error while formatting block %d\n", block);
@@ -355,7 +356,7 @@ int NFTL_formatblock(struct NFTLrecord *nftl, int block)
 fail:
 	/* could not format, update the bad block table (caller is responsible
 	   for setting the ReplUnitTable to BLOCK_RESERVED on failure) */
-	nftl->mbd.mtd->block_markbad(nftl->mbd.mtd, instr->addr);
+	mtd_block_markbad(nftl->mbd.mtd, instr->addr);
 	return -1;
 }
 
diff --git a/drivers/mtd/onenand/generic.c b/drivers/mtd/onenand/generic.c
index 7813095264a5..0ccd5bff2544 100644
--- a/drivers/mtd/onenand/generic.c
+++ b/drivers/mtd/onenand/generic.c
@@ -115,21 +115,9 @@ static struct platform_driver generic_onenand_driver = {
 	.remove		= __devexit_p(generic_onenand_remove),
 };
 
-MODULE_ALIAS("platform:" DRIVER_NAME);
-
-static int __init generic_onenand_init(void)
-{
-	return platform_driver_register(&generic_onenand_driver);
-}
-
-static void __exit generic_onenand_exit(void)
-{
-	platform_driver_unregister(&generic_onenand_driver);
-}
-
-module_init(generic_onenand_init);
-module_exit(generic_onenand_exit);
+module_platform_driver(generic_onenand_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Kyungmin Park <kyungmin.park@samsung.com>");
 MODULE_DESCRIPTION("Glue layer for OneNAND flash on generic boards");
+MODULE_ALIAS("platform:" DRIVER_NAME);
diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c
index a8394730b4b6..a061bc163da2 100644
--- a/drivers/mtd/onenand/onenand_base.c
+++ b/drivers/mtd/onenand/onenand_base.c
@@ -2633,7 +2633,6 @@ static int onenand_default_block_markbad(struct mtd_info *mtd, loff_t ofs)
  */
 static int onenand_block_markbad(struct mtd_info *mtd, loff_t ofs)
 {
-	struct onenand_chip *this = mtd->priv;
 	int ret;
 
 	ret = onenand_block_isbad(mtd, ofs);
@@ -2645,7 +2644,7 @@ static int onenand_block_markbad(struct mtd_info *mtd, loff_t ofs)
 	}
 
 	onenand_get_device(mtd, FL_WRITING);
-	ret = this->block_markbad(mtd, ofs);
+	ret = mtd_block_markbad(mtd, ofs);
 	onenand_release_device(mtd);
 	return ret;
 }
diff --git a/drivers/mtd/onenand/samsung.c b/drivers/mtd/onenand/samsung.c
index 5474547eafc2..fa1ee43f735b 100644
--- a/drivers/mtd/onenand/samsung.c
+++ b/drivers/mtd/onenand/samsung.c
@@ -1133,18 +1133,7 @@ static struct platform_driver s3c_onenand_driver = {
 	.remove         = __devexit_p(s3c_onenand_remove),
 };
 
-static int __init s3c_onenand_init(void)
-{
-	return platform_driver_register(&s3c_onenand_driver);
-}
-
-static void __exit s3c_onenand_exit(void)
-{
-	platform_driver_unregister(&s3c_onenand_driver);
-}
-
-module_init(s3c_onenand_init);
-module_exit(s3c_onenand_exit);
+module_platform_driver(s3c_onenand_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Kyungmin Park <kyungmin.park@samsung.com>");
diff --git a/drivers/mtd/redboot.c b/drivers/mtd/redboot.c
index e366b1d84ead..48970c14beff 100644
--- a/drivers/mtd/redboot.c
+++ b/drivers/mtd/redboot.c
@@ -78,8 +78,8 @@ static int parse_redboot_partitions(struct mtd_info *master,
 
 	if ( directory < 0 ) {
 		offset = master->size + directory * master->erasesize;
-		while (master->block_isbad && 
-		       master->block_isbad(master, offset)) {
+		while (mtd_can_have_bb(master) &&
+		       mtd_block_isbad(master, offset)) {
 			if (!offset) {
 			nogood:
 				printk(KERN_NOTICE "Failed to find a non-bad block to check for RedBoot partition table\n");
@@ -89,8 +89,8 @@ static int parse_redboot_partitions(struct mtd_info *master,
 		}
 	} else {
 		offset = directory * master->erasesize;
-		while (master->block_isbad && 
-		       master->block_isbad(master, offset)) {
+		while (mtd_can_have_bb(master) &&
+		       mtd_block_isbad(master, offset)) {
 			offset += master->erasesize;
 			if (offset == master->size)
 				goto nogood;
@@ -104,8 +104,8 @@ static int parse_redboot_partitions(struct mtd_info *master,
 	printk(KERN_NOTICE "Searching for RedBoot partition table in %s at offset 0x%lx\n",
 	       master->name, offset);
 
-	ret = master->read(master, offset,
-			   master->erasesize, &retlen, (void *)buf);
+	ret = mtd_read(master, offset, master->erasesize, &retlen,
+		       (void *)buf);
 
 	if (ret)
 		goto out;
diff --git a/drivers/mtd/rfd_ftl.c b/drivers/mtd/rfd_ftl.c
index 73ae217a4252..233b946e5d66 100644
--- a/drivers/mtd/rfd_ftl.c
+++ b/drivers/mtd/rfd_ftl.c
@@ -200,9 +200,9 @@ static int scan_header(struct partition *part)
 		part->sector_map[i] = -1;
 
 	for (i=0, blocks_found=0; i<part->total_blocks; i++) {
-		rc = part->mbd.mtd->read(part->mbd.mtd,
-				i * part->block_size, part->header_size,
-				&retlen, (u_char*)part->header_cache);
+		rc = mtd_read(part->mbd.mtd, i * part->block_size,
+			      part->header_size, &retlen,
+			      (u_char *)part->header_cache);
 
 		if (!rc && retlen != part->header_size)
 			rc = -EIO;
@@ -250,8 +250,8 @@ static int rfd_ftl_readsect(struct mtd_blktrans_dev *dev, u_long sector, char *b
 
 	addr = part->sector_map[sector];
 	if (addr != -1) {
-		rc = part->mbd.mtd->read(part->mbd.mtd, addr, SECTOR_SIZE,
-						&retlen, (u_char*)buf);
+		rc = mtd_read(part->mbd.mtd, addr, SECTOR_SIZE, &retlen,
+			      (u_char *)buf);
 		if (!rc && retlen != SECTOR_SIZE)
 			rc = -EIO;
 
@@ -304,9 +304,8 @@ static void erase_callback(struct erase_info *erase)
 	part->blocks[i].used_sectors = 0;
 	part->blocks[i].erases++;
 
-	rc = part->mbd.mtd->write(part->mbd.mtd,
-		part->blocks[i].offset, sizeof(magic), &retlen,
-		(u_char*)&magic);
+	rc = mtd_write(part->mbd.mtd, part->blocks[i].offset, sizeof(magic),
+		       &retlen, (u_char *)&magic);
 
 	if (!rc && retlen != sizeof(magic))
 		rc = -EIO;
@@ -342,7 +341,7 @@ static int erase_block(struct partition *part, int block)
 	part->blocks[block].state = BLOCK_ERASING;
 	part->blocks[block].free_sectors = 0;
 
-	rc = part->mbd.mtd->erase(part->mbd.mtd, erase);
+	rc = mtd_erase(part->mbd.mtd, erase);
 
 	if (rc) {
 		printk(KERN_ERR PREFIX "erase of region %llx,%llx on '%s' "
@@ -372,9 +371,8 @@ static int move_block_contents(struct partition *part, int block_no, u_long *old
 	if (!map)
 		goto err2;
 
-	rc = part->mbd.mtd->read(part->mbd.mtd,
-		part->blocks[block_no].offset, part->header_size,
-		&retlen, (u_char*)map);
+	rc = mtd_read(part->mbd.mtd, part->blocks[block_no].offset,
+		      part->header_size, &retlen, (u_char *)map);
 
 	if (!rc && retlen != part->header_size)
 		rc = -EIO;
@@ -413,8 +411,8 @@ static int move_block_contents(struct partition *part, int block_no, u_long *old
 			}
 			continue;
 		}
-		rc = part->mbd.mtd->read(part->mbd.mtd, addr,
-			SECTOR_SIZE, &retlen, sector_data);
+		rc = mtd_read(part->mbd.mtd, addr, SECTOR_SIZE, &retlen,
+			      sector_data);
 
 		if (!rc && retlen != SECTOR_SIZE)
 			rc = -EIO;
@@ -450,8 +448,7 @@ static int reclaim_block(struct partition *part, u_long *old_sector)
 	int rc;
 
 	/* we have a race if sync doesn't exist */
-	if (part->mbd.mtd->sync)
-		part->mbd.mtd->sync(part->mbd.mtd);
+	mtd_sync(part->mbd.mtd);
 
 	score = 0x7fffffff; /* MAX_INT */
 	best_block = -1;
@@ -563,8 +560,9 @@ static int find_writable_block(struct partition *part, u_long *old_sector)
 		}
 	}
 
-	rc = part->mbd.mtd->read(part->mbd.mtd, part->blocks[block].offset,
-		part->header_size, &retlen, (u_char*)part->header_cache);
+	rc = mtd_read(part->mbd.mtd, part->blocks[block].offset,
+		      part->header_size, &retlen,
+		      (u_char *)part->header_cache);
 
 	if (!rc && retlen != part->header_size)
 		rc = -EIO;
@@ -595,8 +593,8 @@ static int mark_sector_deleted(struct partition *part, u_long old_addr)
 
 	addr = part->blocks[block].offset +
 			(HEADER_MAP_OFFSET + offset) * sizeof(u16);
-	rc = part->mbd.mtd->write(part->mbd.mtd, addr,
-		sizeof(del), &retlen, (u_char*)&del);
+	rc = mtd_write(part->mbd.mtd, addr, sizeof(del), &retlen,
+		       (u_char *)&del);
 
 	if (!rc && retlen != sizeof(del))
 		rc = -EIO;
@@ -668,8 +666,8 @@ static int do_writesect(struct mtd_blktrans_dev *dev, u_long sector, char *buf,
 
 	addr = (i + part->header_sectors_per_block) * SECTOR_SIZE +
 		block->offset;
-	rc = part->mbd.mtd->write(part->mbd.mtd,
-		addr, SECTOR_SIZE, &retlen, (u_char*)buf);
+	rc = mtd_write(part->mbd.mtd, addr, SECTOR_SIZE, &retlen,
+		       (u_char *)buf);
 
 	if (!rc && retlen != SECTOR_SIZE)
 		rc = -EIO;
@@ -688,8 +686,8 @@ static int do_writesect(struct mtd_blktrans_dev *dev, u_long sector, char *buf,
 	part->header_cache[i + HEADER_MAP_OFFSET] = entry;
 
 	addr = block->offset + (HEADER_MAP_OFFSET + i) * sizeof(u16);
-	rc = part->mbd.mtd->write(part->mbd.mtd, addr,
-			sizeof(entry), &retlen, (u_char*)&entry);
+	rc = mtd_write(part->mbd.mtd, addr, sizeof(entry), &retlen,
+		       (u_char *)&entry);
 
 	if (!rc && retlen != sizeof(entry))
 		rc = -EIO;
diff --git a/drivers/mtd/sm_ftl.c b/drivers/mtd/sm_ftl.c
index fddb714e323c..072ed5970e2f 100644
--- a/drivers/mtd/sm_ftl.c
+++ b/drivers/mtd/sm_ftl.c
@@ -25,7 +25,7 @@
 struct workqueue_struct *cache_flush_workqueue;
 
 static int cache_timeout = 1000;
-module_param(cache_timeout, bool, S_IRUGO);
+module_param(cache_timeout, int, S_IRUGO);
 MODULE_PARM_DESC(cache_timeout,
 	"Timeout (in ms) for cache flush (1000 ms default");
 
@@ -278,7 +278,7 @@ again:
 
 	/* Unfortunately, oob read will _always_ succeed,
 		despite card removal..... */
-	ret = mtd->read_oob(mtd, sm_mkoffset(ftl, zone, block, boffset), &ops);
+	ret = mtd_read_oob(mtd, sm_mkoffset(ftl, zone, block, boffset), &ops);
 
 	/* Test for unknown errors */
 	if (ret != 0 && !mtd_is_bitflip_or_eccerr(ret)) {
@@ -343,7 +343,7 @@ static int sm_write_sector(struct sm_ftl *ftl,
 	ops.ooblen = SM_OOB_SIZE;
 	ops.oobbuf = (void *)oob;
 
-	ret = mtd->write_oob(mtd, sm_mkoffset(ftl, zone, block, boffset), &ops);
+	ret = mtd_write_oob(mtd, sm_mkoffset(ftl, zone, block, boffset), &ops);
 
 	/* Now we assume that hardware will catch write bitflip errors */
 	/* If you are paranoid, use CONFIG_MTD_NAND_VERIFY_WRITE */
@@ -479,7 +479,7 @@ static int sm_erase_block(struct sm_ftl *ftl, int zone_num, uint16_t block,
 		return -EIO;
 	}
 
-	if (mtd->erase(mtd, &erase)) {
+	if (mtd_erase(mtd, &erase)) {
 		sm_printk("erase of block %d in zone %d failed",
 							block, zone_num);
 		goto error;
@@ -645,8 +645,8 @@ int sm_get_media_info(struct sm_ftl *ftl, struct mtd_info *mtd)
 	if (!ftl->smallpagenand && mtd->oobsize < SM_OOB_SIZE)
 		return -ENODEV;
 
-	/* We use these functions for IO */
-	if (!mtd->read_oob || !mtd->write_oob)
+	/* We use OOB */
+	if (!mtd_has_oob(mtd))
 		return -ENODEV;
 
 	/* Find geometry information */
diff --git a/drivers/mtd/ssfdc.c b/drivers/mtd/ssfdc.c
index 976e3d28b962..ab2a52a039c3 100644
--- a/drivers/mtd/ssfdc.c
+++ b/drivers/mtd/ssfdc.c
@@ -122,9 +122,9 @@ static int get_valid_cis_sector(struct mtd_info *mtd)
 	 * is not SSFDC formatted
 	 */
 	for (k = 0, offset = 0; k < 4; k++, offset += mtd->erasesize) {
-		if (!mtd->block_isbad(mtd, offset)) {
-			ret = mtd->read(mtd, offset, SECTOR_SIZE, &retlen,
-				sect_buf);
+		if (mtd_block_isbad(mtd, offset)) {
+			ret = mtd_read(mtd, offset, SECTOR_SIZE, &retlen,
+				       sect_buf);
 
 			/* CIS pattern match on the sector buffer */
 			if (ret < 0 || retlen != SECTOR_SIZE) {
@@ -156,7 +156,7 @@ static int read_physical_sector(struct mtd_info *mtd, uint8_t *sect_buf,
 	size_t retlen;
 	loff_t offset = (loff_t)sect_no << SECTOR_SHIFT;
 
-	ret = mtd->read(mtd, offset, SECTOR_SIZE, &retlen, sect_buf);
+	ret = mtd_read(mtd, offset, SECTOR_SIZE, &retlen, sect_buf);
 	if (ret < 0 || retlen != SECTOR_SIZE)
 		return -1;
 
@@ -175,7 +175,7 @@ static int read_raw_oob(struct mtd_info *mtd, loff_t offs, uint8_t *buf)
 	ops.oobbuf = buf;
 	ops.datbuf = NULL;
 
-	ret = mtd->read_oob(mtd, offs, &ops);
+	ret = mtd_read_oob(mtd, offs, &ops);
 	if (ret < 0 || ops.oobretlen != OOB_SIZE)
 		return -1;
 
@@ -255,7 +255,7 @@ static int build_logical_block_map(struct ssfdcr_record *ssfdc)
 	for (phys_block = ssfdc->cis_block + 1; phys_block < ssfdc->map_len;
 			phys_block++) {
 		offset = (unsigned long)phys_block * ssfdc->erase_size;
-		if (mtd->block_isbad(mtd, offset))
+		if (mtd_block_isbad(mtd, offset))
 			continue;	/* skip bad blocks */
 
 		ret = read_raw_oob(mtd, offset, oob_buf);
diff --git a/drivers/mtd/tests/mtd_oobtest.c b/drivers/mtd/tests/mtd_oobtest.c
index 933f7e5f32d3..ed9b62827f1b 100644
--- a/drivers/mtd/tests/mtd_oobtest.c
+++ b/drivers/mtd/tests/mtd_oobtest.c
@@ -78,7 +78,7 @@ static int erase_eraseblock(int ebnum)
 	ei.addr = addr;
 	ei.len  = mtd->erasesize;
 
-	err = mtd->erase(mtd, &ei);
+	err = mtd_erase(mtd, &ei);
 	if (err) {
 		printk(PRINT_PREF "error %d while erasing EB %d\n", err, ebnum);
 		return err;
@@ -139,7 +139,7 @@ static int write_eraseblock(int ebnum)
 		ops.ooboffs   = use_offset;
 		ops.datbuf    = NULL;
 		ops.oobbuf    = writebuf;
-		err = mtd->write_oob(mtd, addr, &ops);
+		err = mtd_write_oob(mtd, addr, &ops);
 		if (err || ops.oobretlen != use_len) {
 			printk(PRINT_PREF "error: writeoob failed at %#llx\n",
 			       (long long)addr);
@@ -192,7 +192,7 @@ static int verify_eraseblock(int ebnum)
 		ops.ooboffs   = use_offset;
 		ops.datbuf    = NULL;
 		ops.oobbuf    = readbuf;
-		err = mtd->read_oob(mtd, addr, &ops);
+		err = mtd_read_oob(mtd, addr, &ops);
 		if (err || ops.oobretlen != use_len) {
 			printk(PRINT_PREF "error: readoob failed at %#llx\n",
 			       (long long)addr);
@@ -219,7 +219,7 @@ static int verify_eraseblock(int ebnum)
 			ops.ooboffs   = 0;
 			ops.datbuf    = NULL;
 			ops.oobbuf    = readbuf;
-			err = mtd->read_oob(mtd, addr, &ops);
+			err = mtd_read_oob(mtd, addr, &ops);
 			if (err || ops.oobretlen != mtd->ecclayout->oobavail) {
 				printk(PRINT_PREF "error: readoob failed at "
 				       "%#llx\n", (long long)addr);
@@ -284,7 +284,7 @@ static int verify_eraseblock_in_one_go(int ebnum)
 	ops.ooboffs   = 0;
 	ops.datbuf    = NULL;
 	ops.oobbuf    = readbuf;
-	err = mtd->read_oob(mtd, addr, &ops);
+	err = mtd_read_oob(mtd, addr, &ops);
 	if (err || ops.oobretlen != len) {
 		printk(PRINT_PREF "error: readoob failed at %#llx\n",
 		       (long long)addr);
@@ -329,7 +329,7 @@ static int is_block_bad(int ebnum)
 	int ret;
 	loff_t addr = ebnum * mtd->erasesize;
 
-	ret = mtd->block_isbad(mtd, addr);
+	ret = mtd_block_isbad(mtd, addr);
 	if (ret)
 		printk(PRINT_PREF "block %d is bad\n", ebnum);
 	return ret;
@@ -524,7 +524,7 @@ static int __init mtd_oobtest_init(void)
 	ops.oobbuf    = writebuf;
 	printk(PRINT_PREF "attempting to start write past end of OOB\n");
 	printk(PRINT_PREF "an error is expected...\n");
-	err = mtd->write_oob(mtd, addr0, &ops);
+	err = mtd_write_oob(mtd, addr0, &ops);
 	if (err) {
 		printk(PRINT_PREF "error occurred as expected\n");
 		err = 0;
@@ -544,7 +544,7 @@ static int __init mtd_oobtest_init(void)
 	ops.oobbuf    = readbuf;
 	printk(PRINT_PREF "attempting to start read past end of OOB\n");
 	printk(PRINT_PREF "an error is expected...\n");
-	err = mtd->read_oob(mtd, addr0, &ops);
+	err = mtd_read_oob(mtd, addr0, &ops);
 	if (err) {
 		printk(PRINT_PREF "error occurred as expected\n");
 		err = 0;
@@ -568,7 +568,7 @@ static int __init mtd_oobtest_init(void)
 		ops.oobbuf    = writebuf;
 		printk(PRINT_PREF "attempting to write past end of device\n");
 		printk(PRINT_PREF "an error is expected...\n");
-		err = mtd->write_oob(mtd, mtd->size - mtd->writesize, &ops);
+		err = mtd_write_oob(mtd, mtd->size - mtd->writesize, &ops);
 		if (err) {
 			printk(PRINT_PREF "error occurred as expected\n");
 			err = 0;
@@ -588,7 +588,7 @@ static int __init mtd_oobtest_init(void)
 		ops.oobbuf    = readbuf;
 		printk(PRINT_PREF "attempting to read past end of device\n");
 		printk(PRINT_PREF "an error is expected...\n");
-		err = mtd->read_oob(mtd, mtd->size - mtd->writesize, &ops);
+		err = mtd_read_oob(mtd, mtd->size - mtd->writesize, &ops);
 		if (err) {
 			printk(PRINT_PREF "error occurred as expected\n");
 			err = 0;
@@ -612,7 +612,7 @@ static int __init mtd_oobtest_init(void)
 		ops.oobbuf    = writebuf;
 		printk(PRINT_PREF "attempting to write past end of device\n");
 		printk(PRINT_PREF "an error is expected...\n");
-		err = mtd->write_oob(mtd, mtd->size - mtd->writesize, &ops);
+		err = mtd_write_oob(mtd, mtd->size - mtd->writesize, &ops);
 		if (err) {
 			printk(PRINT_PREF "error occurred as expected\n");
 			err = 0;
@@ -632,7 +632,7 @@ static int __init mtd_oobtest_init(void)
 		ops.oobbuf    = readbuf;
 		printk(PRINT_PREF "attempting to read past end of device\n");
 		printk(PRINT_PREF "an error is expected...\n");
-		err = mtd->read_oob(mtd, mtd->size - mtd->writesize, &ops);
+		err = mtd_read_oob(mtd, mtd->size - mtd->writesize, &ops);
 		if (err) {
 			printk(PRINT_PREF "error occurred as expected\n");
 			err = 0;
@@ -670,7 +670,7 @@ static int __init mtd_oobtest_init(void)
 			ops.ooboffs   = 0;
 			ops.datbuf    = NULL;
 			ops.oobbuf    = writebuf;
-			err = mtd->write_oob(mtd, addr, &ops);
+			err = mtd_write_oob(mtd, addr, &ops);
 			if (err)
 				goto out;
 			if (i % 256 == 0)
@@ -698,7 +698,7 @@ static int __init mtd_oobtest_init(void)
 		ops.ooboffs   = 0;
 		ops.datbuf    = NULL;
 		ops.oobbuf    = readbuf;
-		err = mtd->read_oob(mtd, addr, &ops);
+		err = mtd_read_oob(mtd, addr, &ops);
 		if (err)
 			goto out;
 		if (memcmp(readbuf, writebuf, mtd->ecclayout->oobavail * 2)) {
diff --git a/drivers/mtd/tests/mtd_pagetest.c b/drivers/mtd/tests/mtd_pagetest.c
index afafb6935fd0..252ddb092fb2 100644
--- a/drivers/mtd/tests/mtd_pagetest.c
+++ b/drivers/mtd/tests/mtd_pagetest.c
@@ -77,7 +77,7 @@ static int erase_eraseblock(int ebnum)
 	ei.addr = addr;
 	ei.len  = mtd->erasesize;
 
-	err = mtd->erase(mtd, &ei);
+	err = mtd_erase(mtd, &ei);
 	if (err) {
 		printk(PRINT_PREF "error %d while erasing EB %d\n", err, ebnum);
 		return err;
@@ -95,12 +95,12 @@ static int erase_eraseblock(int ebnum)
 static int write_eraseblock(int ebnum)
 {
 	int err = 0;
-	size_t written = 0;
+	size_t written;
 	loff_t addr = ebnum * mtd->erasesize;
 
 	set_random_data(writebuf, mtd->erasesize);
 	cond_resched();
-	err = mtd->write(mtd, addr, mtd->erasesize, &written, writebuf);
+	err = mtd_write(mtd, addr, mtd->erasesize, &written, writebuf);
 	if (err || written != mtd->erasesize)
 		printk(PRINT_PREF "error: write failed at %#llx\n",
 		       (long long)addr);
@@ -111,7 +111,7 @@ static int write_eraseblock(int ebnum)
 static int verify_eraseblock(int ebnum)
 {
 	uint32_t j;
-	size_t read = 0;
+	size_t read;
 	int err = 0, i;
 	loff_t addr0, addrn;
 	loff_t addr = ebnum * mtd->erasesize;
@@ -127,7 +127,7 @@ static int verify_eraseblock(int ebnum)
 	set_random_data(writebuf, mtd->erasesize);
 	for (j = 0; j < pgcnt - 1; ++j, addr += pgsize) {
 		/* Do a read to set the internal dataRAMs to different data */
-		err = mtd->read(mtd, addr0, bufsize, &read, twopages);
+		err = mtd_read(mtd, addr0, bufsize, &read, twopages);
 		if (mtd_is_bitflip(err))
 			err = 0;
 		if (err || read != bufsize) {
@@ -135,7 +135,7 @@ static int verify_eraseblock(int ebnum)
 			       (long long)addr0);
 			return err;
 		}
-		err = mtd->read(mtd, addrn - bufsize, bufsize, &read, twopages);
+		err = mtd_read(mtd, addrn - bufsize, bufsize, &read, twopages);
 		if (mtd_is_bitflip(err))
 			err = 0;
 		if (err || read != bufsize) {
@@ -144,8 +144,7 @@ static int verify_eraseblock(int ebnum)
 			return err;
 		}
 		memset(twopages, 0, bufsize);
-		read = 0;
-		err = mtd->read(mtd, addr, bufsize, &read, twopages);
+		err = mtd_read(mtd, addr, bufsize, &read, twopages);
 		if (mtd_is_bitflip(err))
 			err = 0;
 		if (err || read != bufsize) {
@@ -163,7 +162,7 @@ static int verify_eraseblock(int ebnum)
 	if (addr <= addrn - pgsize - pgsize && !bbt[ebnum + 1]) {
 		unsigned long oldnext = next;
 		/* Do a read to set the internal dataRAMs to different data */
-		err = mtd->read(mtd, addr0, bufsize, &read, twopages);
+		err = mtd_read(mtd, addr0, bufsize, &read, twopages);
 		if (mtd_is_bitflip(err))
 			err = 0;
 		if (err || read != bufsize) {
@@ -171,7 +170,7 @@ static int verify_eraseblock(int ebnum)
 			       (long long)addr0);
 			return err;
 		}
-		err = mtd->read(mtd, addrn - bufsize, bufsize, &read, twopages);
+		err = mtd_read(mtd, addrn - bufsize, bufsize, &read, twopages);
 		if (mtd_is_bitflip(err))
 			err = 0;
 		if (err || read != bufsize) {
@@ -180,8 +179,7 @@ static int verify_eraseblock(int ebnum)
 			return err;
 		}
 		memset(twopages, 0, bufsize);
-		read = 0;
-		err = mtd->read(mtd, addr, bufsize, &read, twopages);
+		err = mtd_read(mtd, addr, bufsize, &read, twopages);
 		if (mtd_is_bitflip(err))
 			err = 0;
 		if (err || read != bufsize) {
@@ -203,7 +201,7 @@ static int verify_eraseblock(int ebnum)
 
 static int crosstest(void)
 {
-	size_t read = 0;
+	size_t read;
 	int err = 0, i;
 	loff_t addr, addr0, addrn;
 	unsigned char *pp1, *pp2, *pp3, *pp4;
@@ -228,9 +226,8 @@ static int crosstest(void)
 		addrn -= mtd->erasesize;
 
 	/* Read 2nd-to-last page to pp1 */
-	read = 0;
 	addr = addrn - pgsize - pgsize;
-	err = mtd->read(mtd, addr, pgsize, &read, pp1);
+	err = mtd_read(mtd, addr, pgsize, &read, pp1);
 	if (mtd_is_bitflip(err))
 		err = 0;
 	if (err || read != pgsize) {
@@ -241,9 +238,8 @@ static int crosstest(void)
 	}
 
 	/* Read 3rd-to-last page to pp1 */
-	read = 0;
 	addr = addrn - pgsize - pgsize - pgsize;
-	err = mtd->read(mtd, addr, pgsize, &read, pp1);
+	err = mtd_read(mtd, addr, pgsize, &read, pp1);
 	if (mtd_is_bitflip(err))
 		err = 0;
 	if (err || read != pgsize) {
@@ -254,10 +250,9 @@ static int crosstest(void)
 	}
 
 	/* Read first page to pp2 */
-	read = 0;
 	addr = addr0;
 	printk(PRINT_PREF "reading page at %#llx\n", (long long)addr);
-	err = mtd->read(mtd, addr, pgsize, &read, pp2);
+	err = mtd_read(mtd, addr, pgsize, &read, pp2);
 	if (mtd_is_bitflip(err))
 		err = 0;
 	if (err || read != pgsize) {
@@ -268,10 +263,9 @@ static int crosstest(void)
 	}
 
 	/* Read last page to pp3 */
-	read = 0;
 	addr = addrn - pgsize;
 	printk(PRINT_PREF "reading page at %#llx\n", (long long)addr);
-	err = mtd->read(mtd, addr, pgsize, &read, pp3);
+	err = mtd_read(mtd, addr, pgsize, &read, pp3);
 	if (mtd_is_bitflip(err))
 		err = 0;
 	if (err || read != pgsize) {
@@ -282,10 +276,9 @@ static int crosstest(void)
 	}
 
 	/* Read first page again to pp4 */
-	read = 0;
 	addr = addr0;
 	printk(PRINT_PREF "reading page at %#llx\n", (long long)addr);
-	err = mtd->read(mtd, addr, pgsize, &read, pp4);
+	err = mtd_read(mtd, addr, pgsize, &read, pp4);
 	if (mtd_is_bitflip(err))
 		err = 0;
 	if (err || read != pgsize) {
@@ -309,7 +302,7 @@ static int crosstest(void)
 
 static int erasecrosstest(void)
 {
-	size_t read = 0, written = 0;
+	size_t read, written;
 	int err = 0, i, ebnum, ebnum2;
 	loff_t addr0;
 	char *readbuf = twopages;
@@ -335,7 +328,7 @@ static int erasecrosstest(void)
 	printk(PRINT_PREF "writing 1st page of block %d\n", ebnum);
 	set_random_data(writebuf, pgsize);
 	strcpy(writebuf, "There is no data like this!");
-	err = mtd->write(mtd, addr0, pgsize, &written, writebuf);
+	err = mtd_write(mtd, addr0, pgsize, &written, writebuf);
 	if (err || written != pgsize) {
 		printk(PRINT_PREF "error: write failed at %#llx\n",
 		       (long long)addr0);
@@ -344,7 +337,7 @@ static int erasecrosstest(void)
 
 	printk(PRINT_PREF "reading 1st page of block %d\n", ebnum);
 	memset(readbuf, 0, pgsize);
-	err = mtd->read(mtd, addr0, pgsize, &read, readbuf);
+	err = mtd_read(mtd, addr0, pgsize, &read, readbuf);
 	if (mtd_is_bitflip(err))
 		err = 0;
 	if (err || read != pgsize) {
@@ -368,7 +361,7 @@ static int erasecrosstest(void)
 	printk(PRINT_PREF "writing 1st page of block %d\n", ebnum);
 	set_random_data(writebuf, pgsize);
 	strcpy(writebuf, "There is no data like this!");
-	err = mtd->write(mtd, addr0, pgsize, &written, writebuf);
+	err = mtd_write(mtd, addr0, pgsize, &written, writebuf);
 	if (err || written != pgsize) {
 		printk(PRINT_PREF "error: write failed at %#llx\n",
 		       (long long)addr0);
@@ -382,7 +375,7 @@ static int erasecrosstest(void)
 
 	printk(PRINT_PREF "reading 1st page of block %d\n", ebnum);
 	memset(readbuf, 0, pgsize);
-	err = mtd->read(mtd, addr0, pgsize, &read, readbuf);
+	err = mtd_read(mtd, addr0, pgsize, &read, readbuf);
 	if (mtd_is_bitflip(err))
 		err = 0;
 	if (err || read != pgsize) {
@@ -405,7 +398,7 @@ static int erasecrosstest(void)
 
 static int erasetest(void)
 {
-	size_t read = 0, written = 0;
+	size_t read, written;
 	int err = 0, i, ebnum, ok = 1;
 	loff_t addr0;
 
@@ -425,7 +418,7 @@ static int erasetest(void)
 
 	printk(PRINT_PREF "writing 1st page of block %d\n", ebnum);
 	set_random_data(writebuf, pgsize);
-	err = mtd->write(mtd, addr0, pgsize, &written, writebuf);
+	err = mtd_write(mtd, addr0, pgsize, &written, writebuf);
 	if (err || written != pgsize) {
 		printk(PRINT_PREF "error: write failed at %#llx\n",
 		       (long long)addr0);
@@ -438,7 +431,7 @@ static int erasetest(void)
 		return err;
 
 	printk(PRINT_PREF "reading 1st page of block %d\n", ebnum);
-	err = mtd->read(mtd, addr0, pgsize, &read, twopages);
+	err = mtd_read(mtd, addr0, pgsize, &read, twopages);
 	if (mtd_is_bitflip(err))
 		err = 0;
 	if (err || read != pgsize) {
@@ -469,7 +462,7 @@ static int is_block_bad(int ebnum)
 	loff_t addr = ebnum * mtd->erasesize;
 	int ret;
 
-	ret = mtd->block_isbad(mtd, addr);
+	ret = mtd_block_isbad(mtd, addr);
 	if (ret)
 		printk(PRINT_PREF "block %d is bad\n", ebnum);
 	return ret;
diff --git a/drivers/mtd/tests/mtd_readtest.c b/drivers/mtd/tests/mtd_readtest.c
index 550fe51225a7..121aba189cec 100644
--- a/drivers/mtd/tests/mtd_readtest.c
+++ b/drivers/mtd/tests/mtd_readtest.c
@@ -44,7 +44,7 @@ static int pgcnt;
 
 static int read_eraseblock_by_page(int ebnum)
 {
-	size_t read = 0;
+	size_t read;
 	int i, ret, err = 0;
 	loff_t addr = ebnum * mtd->erasesize;
 	void *buf = iobuf;
@@ -52,7 +52,7 @@ static int read_eraseblock_by_page(int ebnum)
 
 	for (i = 0; i < pgcnt; i++) {
 		memset(buf, 0 , pgcnt);
-		ret = mtd->read(mtd, addr, pgsize, &read, buf);
+		ret = mtd_read(mtd, addr, pgsize, &read, buf);
 		if (ret == -EUCLEAN)
 			ret = 0;
 		if (ret || read != pgsize) {
@@ -74,7 +74,7 @@ static int read_eraseblock_by_page(int ebnum)
 			ops.ooboffs   = 0;
 			ops.datbuf    = NULL;
 			ops.oobbuf    = oobbuf;
-			ret = mtd->read_oob(mtd, addr, &ops);
+			ret = mtd_read_oob(mtd, addr, &ops);
 			if ((ret && !mtd_is_bitflip(ret)) ||
 					ops.oobretlen != mtd->oobsize) {
 				printk(PRINT_PREF "error: read oob failed at "
@@ -132,7 +132,7 @@ static int is_block_bad(int ebnum)
 	loff_t addr = ebnum * mtd->erasesize;
 	int ret;
 
-	ret = mtd->block_isbad(mtd, addr);
+	ret = mtd_block_isbad(mtd, addr);
 	if (ret)
 		printk(PRINT_PREF "block %d is bad\n", ebnum);
 	return ret;
@@ -148,8 +148,7 @@ static int scan_for_bad_eraseblocks(void)
 		return -ENOMEM;
 	}
 
-	/* NOR flash does not implement block_isbad */
-	if (mtd->block_isbad == NULL)
+	if (!mtd_can_have_bb(mtd))
 		return 0;
 
 	printk(PRINT_PREF "scanning for bad eraseblocks\n");
diff --git a/drivers/mtd/tests/mtd_speedtest.c b/drivers/mtd/tests/mtd_speedtest.c
index 493b367bdd35..2aec4f3b72be 100644
--- a/drivers/mtd/tests/mtd_speedtest.c
+++ b/drivers/mtd/tests/mtd_speedtest.c
@@ -79,7 +79,7 @@ static int erase_eraseblock(int ebnum)
 	ei.addr = addr;
 	ei.len  = mtd->erasesize;
 
-	err = mtd->erase(mtd, &ei);
+	err = mtd_erase(mtd, &ei);
 	if (err) {
 		printk(PRINT_PREF "error %d while erasing EB %d\n", err, ebnum);
 		return err;
@@ -105,7 +105,7 @@ static int multiblock_erase(int ebnum, int blocks)
 	ei.addr = addr;
 	ei.len  = mtd->erasesize * blocks;
 
-	err = mtd->erase(mtd, &ei);
+	err = mtd_erase(mtd, &ei);
 	if (err) {
 		printk(PRINT_PREF "error %d while erasing EB %d, blocks %d\n",
 		       err, ebnum, blocks);
@@ -139,11 +139,11 @@ static int erase_whole_device(void)
 
 static int write_eraseblock(int ebnum)
 {
-	size_t written = 0;
+	size_t written;
 	int err = 0;
 	loff_t addr = ebnum * mtd->erasesize;
 
-	err = mtd->write(mtd, addr, mtd->erasesize, &written, iobuf);
+	err = mtd_write(mtd, addr, mtd->erasesize, &written, iobuf);
 	if (err || written != mtd->erasesize) {
 		printk(PRINT_PREF "error: write failed at %#llx\n", addr);
 		if (!err)
@@ -155,13 +155,13 @@ static int write_eraseblock(int ebnum)
 
 static int write_eraseblock_by_page(int ebnum)
 {
-	size_t written = 0;
+	size_t written;
 	int i, err = 0;
 	loff_t addr = ebnum * mtd->erasesize;
 	void *buf = iobuf;
 
 	for (i = 0; i < pgcnt; i++) {
-		err = mtd->write(mtd, addr, pgsize, &written, buf);
+		err = mtd_write(mtd, addr, pgsize, &written, buf);
 		if (err || written != pgsize) {
 			printk(PRINT_PREF "error: write failed at %#llx\n",
 			       addr);
@@ -178,13 +178,13 @@ static int write_eraseblock_by_page(int ebnum)
 
 static int write_eraseblock_by_2pages(int ebnum)
 {
-	size_t written = 0, sz = pgsize * 2;
+	size_t written, sz = pgsize * 2;
 	int i, n = pgcnt / 2, err = 0;
 	loff_t addr = ebnum * mtd->erasesize;
 	void *buf = iobuf;
 
 	for (i = 0; i < n; i++) {
-		err = mtd->write(mtd, addr, sz, &written, buf);
+		err = mtd_write(mtd, addr, sz, &written, buf);
 		if (err || written != sz) {
 			printk(PRINT_PREF "error: write failed at %#llx\n",
 			       addr);
@@ -196,7 +196,7 @@ static int write_eraseblock_by_2pages(int ebnum)
 		buf += sz;
 	}
 	if (pgcnt % 2) {
-		err = mtd->write(mtd, addr, pgsize, &written, buf);
+		err = mtd_write(mtd, addr, pgsize, &written, buf);
 		if (err || written != pgsize) {
 			printk(PRINT_PREF "error: write failed at %#llx\n",
 			       addr);
@@ -210,11 +210,11 @@ static int write_eraseblock_by_2pages(int ebnum)
 
 static int read_eraseblock(int ebnum)
 {
-	size_t read = 0;
+	size_t read;
 	int err = 0;
 	loff_t addr = ebnum * mtd->erasesize;
 
-	err = mtd->read(mtd, addr, mtd->erasesize, &read, iobuf);
+	err = mtd_read(mtd, addr, mtd->erasesize, &read, iobuf);
 	/* Ignore corrected ECC errors */
 	if (mtd_is_bitflip(err))
 		err = 0;
@@ -229,13 +229,13 @@ static int read_eraseblock(int ebnum)
 
 static int read_eraseblock_by_page(int ebnum)
 {
-	size_t read = 0;
+	size_t read;
 	int i, err = 0;
 	loff_t addr = ebnum * mtd->erasesize;
 	void *buf = iobuf;
 
 	for (i = 0; i < pgcnt; i++) {
-		err = mtd->read(mtd, addr, pgsize, &read, buf);
+		err = mtd_read(mtd, addr, pgsize, &read, buf);
 		/* Ignore corrected ECC errors */
 		if (mtd_is_bitflip(err))
 			err = 0;
@@ -255,13 +255,13 @@ static int read_eraseblock_by_page(int ebnum)
 
 static int read_eraseblock_by_2pages(int ebnum)
 {
-	size_t read = 0, sz = pgsize * 2;
+	size_t read, sz = pgsize * 2;
 	int i, n = pgcnt / 2, err = 0;
 	loff_t addr = ebnum * mtd->erasesize;
 	void *buf = iobuf;
 
 	for (i = 0; i < n; i++) {
-		err = mtd->read(mtd, addr, sz, &read, buf);
+		err = mtd_read(mtd, addr, sz, &read, buf);
 		/* Ignore corrected ECC errors */
 		if (mtd_is_bitflip(err))
 			err = 0;
@@ -276,7 +276,7 @@ static int read_eraseblock_by_2pages(int ebnum)
 		buf += sz;
 	}
 	if (pgcnt % 2) {
-		err = mtd->read(mtd, addr, pgsize, &read, buf);
+		err = mtd_read(mtd, addr, pgsize, &read, buf);
 		/* Ignore corrected ECC errors */
 		if (mtd_is_bitflip(err))
 			err = 0;
@@ -296,7 +296,7 @@ static int is_block_bad(int ebnum)
 	loff_t addr = ebnum * mtd->erasesize;
 	int ret;
 
-	ret = mtd->block_isbad(mtd, addr);
+	ret = mtd_block_isbad(mtd, addr);
 	if (ret)
 		printk(PRINT_PREF "block %d is bad\n", ebnum);
 	return ret;
@@ -336,8 +336,7 @@ static int scan_for_bad_eraseblocks(void)
 		return -ENOMEM;
 	}
 
-	/* NOR flash does not implement block_isbad */
-	if (mtd->block_isbad == NULL)
+	if (!mtd_can_have_bb(mtd))
 		goto out;
 
 	printk(PRINT_PREF "scanning for bad eraseblocks\n");
diff --git a/drivers/mtd/tests/mtd_stresstest.c b/drivers/mtd/tests/mtd_stresstest.c
index 52ffd9120e0d..7b33f22d0b58 100644
--- a/drivers/mtd/tests/mtd_stresstest.c
+++ b/drivers/mtd/tests/mtd_stresstest.c
@@ -112,7 +112,7 @@ static int erase_eraseblock(int ebnum)
 	ei.addr = addr;
 	ei.len  = mtd->erasesize;
 
-	err = mtd->erase(mtd, &ei);
+	err = mtd_erase(mtd, &ei);
 	if (unlikely(err)) {
 		printk(PRINT_PREF "error %d while erasing EB %d\n", err, ebnum);
 		return err;
@@ -132,7 +132,7 @@ static int is_block_bad(int ebnum)
 	loff_t addr = ebnum * mtd->erasesize;
 	int ret;
 
-	ret = mtd->block_isbad(mtd, addr);
+	ret = mtd_block_isbad(mtd, addr);
 	if (ret)
 		printk(PRINT_PREF "block %d is bad\n", ebnum);
 	return ret;
@@ -140,7 +140,7 @@ static int is_block_bad(int ebnum)
 
 static int do_read(void)
 {
-	size_t read = 0;
+	size_t read;
 	int eb = rand_eb();
 	int offs = rand_offs();
 	int len = rand_len(offs), err;
@@ -153,7 +153,7 @@ static int do_read(void)
 			len = mtd->erasesize - offs;
 	}
 	addr = eb * mtd->erasesize + offs;
-	err = mtd->read(mtd, addr, len, &read, readbuf);
+	err = mtd_read(mtd, addr, len, &read, readbuf);
 	if (mtd_is_bitflip(err))
 		err = 0;
 	if (unlikely(err || read != len)) {
@@ -169,7 +169,7 @@ static int do_read(void)
 static int do_write(void)
 {
 	int eb = rand_eb(), offs, err, len;
-	size_t written = 0;
+	size_t written;
 	loff_t addr;
 
 	offs = offsets[eb];
@@ -192,7 +192,7 @@ static int do_write(void)
 		}
 	}
 	addr = eb * mtd->erasesize + offs;
-	err = mtd->write(mtd, addr, len, &written, writebuf);
+	err = mtd_write(mtd, addr, len, &written, writebuf);
 	if (unlikely(err || written != len)) {
 		printk(PRINT_PREF "error: write failed at 0x%llx\n",
 		       (long long)addr);
@@ -227,8 +227,7 @@ static int scan_for_bad_eraseblocks(void)
 		return -ENOMEM;
 	}
 
-	/* NOR flash does not implement block_isbad */
-	if (mtd->block_isbad == NULL)
+	if (!mtd_can_have_bb(mtd))
 		return 0;
 
 	printk(PRINT_PREF "scanning for bad eraseblocks\n");
@@ -284,6 +283,12 @@ static int __init mtd_stresstest_init(void)
 	       (unsigned long long)mtd->size, mtd->erasesize,
 	       pgsize, ebcnt, pgcnt, mtd->oobsize);
 
+	if (ebcnt < 2) {
+		printk(PRINT_PREF "error: need at least 2 eraseblocks\n");
+		err = -ENOSPC;
+		goto out_put_mtd;
+	}
+
 	/* Read or write up 2 eraseblocks at a time */
 	bufsize = mtd->erasesize * 2;
 
@@ -322,6 +327,7 @@ out:
 	kfree(bbt);
 	vfree(writebuf);
 	vfree(readbuf);
+out_put_mtd:
 	put_mtd_device(mtd);
 	if (err)
 		printk(PRINT_PREF "error %d occurred\n", err);
diff --git a/drivers/mtd/tests/mtd_subpagetest.c b/drivers/mtd/tests/mtd_subpagetest.c
index 1a05bfac4eee..9667bf535282 100644
--- a/drivers/mtd/tests/mtd_subpagetest.c
+++ b/drivers/mtd/tests/mtd_subpagetest.c
@@ -80,7 +80,7 @@ static int erase_eraseblock(int ebnum)
 	ei.addr = addr;
 	ei.len  = mtd->erasesize;
 
-	err = mtd->erase(mtd, &ei);
+	err = mtd_erase(mtd, &ei);
 	if (err) {
 		printk(PRINT_PREF "error %d while erasing EB %d\n", err, ebnum);
 		return err;
@@ -115,12 +115,12 @@ static int erase_whole_device(void)
 
 static int write_eraseblock(int ebnum)
 {
-	size_t written = 0;
+	size_t written;
 	int err = 0;
 	loff_t addr = ebnum * mtd->erasesize;
 
 	set_random_data(writebuf, subpgsize);
-	err = mtd->write(mtd, addr, subpgsize, &written, writebuf);
+	err = mtd_write(mtd, addr, subpgsize, &written, writebuf);
 	if (unlikely(err || written != subpgsize)) {
 		printk(PRINT_PREF "error: write failed at %#llx\n",
 		       (long long)addr);
@@ -134,7 +134,7 @@ static int write_eraseblock(int ebnum)
 	addr += subpgsize;
 
 	set_random_data(writebuf, subpgsize);
-	err = mtd->write(mtd, addr, subpgsize, &written, writebuf);
+	err = mtd_write(mtd, addr, subpgsize, &written, writebuf);
 	if (unlikely(err || written != subpgsize)) {
 		printk(PRINT_PREF "error: write failed at %#llx\n",
 		       (long long)addr);
@@ -150,7 +150,7 @@ static int write_eraseblock(int ebnum)
 
 static int write_eraseblock2(int ebnum)
 {
-	size_t written = 0;
+	size_t written;
 	int err = 0, k;
 	loff_t addr = ebnum * mtd->erasesize;
 
@@ -158,7 +158,7 @@ static int write_eraseblock2(int ebnum)
 		if (addr + (subpgsize * k) > (ebnum + 1) * mtd->erasesize)
 			break;
 		set_random_data(writebuf, subpgsize * k);
-		err = mtd->write(mtd, addr, subpgsize * k, &written, writebuf);
+		err = mtd_write(mtd, addr, subpgsize * k, &written, writebuf);
 		if (unlikely(err || written != subpgsize * k)) {
 			printk(PRINT_PREF "error: write failed at %#llx\n",
 			       (long long)addr);
@@ -189,14 +189,13 @@ static void print_subpage(unsigned char *p)
 
 static int verify_eraseblock(int ebnum)
 {
-	size_t read = 0;
+	size_t read;
 	int err = 0;
 	loff_t addr = ebnum * mtd->erasesize;
 
 	set_random_data(writebuf, subpgsize);
 	clear_data(readbuf, subpgsize);
-	read = 0;
-	err = mtd->read(mtd, addr, subpgsize, &read, readbuf);
+	err = mtd_read(mtd, addr, subpgsize, &read, readbuf);
 	if (unlikely(err || read != subpgsize)) {
 		if (mtd_is_bitflip(err) && read == subpgsize) {
 			printk(PRINT_PREF "ECC correction at %#llx\n",
@@ -223,8 +222,7 @@ static int verify_eraseblock(int ebnum)
 
 	set_random_data(writebuf, subpgsize);
 	clear_data(readbuf, subpgsize);
-	read = 0;
-	err = mtd->read(mtd, addr, subpgsize, &read, readbuf);
+	err = mtd_read(mtd, addr, subpgsize, &read, readbuf);
 	if (unlikely(err || read != subpgsize)) {
 		if (mtd_is_bitflip(err) && read == subpgsize) {
 			printk(PRINT_PREF "ECC correction at %#llx\n",
@@ -252,7 +250,7 @@ static int verify_eraseblock(int ebnum)
 
 static int verify_eraseblock2(int ebnum)
 {
-	size_t read = 0;
+	size_t read;
 	int err = 0, k;
 	loff_t addr = ebnum * mtd->erasesize;
 
@@ -261,8 +259,7 @@ static int verify_eraseblock2(int ebnum)
 			break;
 		set_random_data(writebuf, subpgsize * k);
 		clear_data(readbuf, subpgsize * k);
-		read = 0;
-		err = mtd->read(mtd, addr, subpgsize * k, &read, readbuf);
+		err = mtd_read(mtd, addr, subpgsize * k, &read, readbuf);
 		if (unlikely(err || read != subpgsize * k)) {
 			if (mtd_is_bitflip(err) && read == subpgsize * k) {
 				printk(PRINT_PREF "ECC correction at %#llx\n",
@@ -288,15 +285,14 @@ static int verify_eraseblock2(int ebnum)
 static int verify_eraseblock_ff(int ebnum)
 {
 	uint32_t j;
-	size_t read = 0;
+	size_t read;
 	int err = 0;
 	loff_t addr = ebnum * mtd->erasesize;
 
 	memset(writebuf, 0xff, subpgsize);
 	for (j = 0; j < mtd->erasesize / subpgsize; ++j) {
 		clear_data(readbuf, subpgsize);
-		read = 0;
-		err = mtd->read(mtd, addr, subpgsize, &read, readbuf);
+		err = mtd_read(mtd, addr, subpgsize, &read, readbuf);
 		if (unlikely(err || read != subpgsize)) {
 			if (mtd_is_bitflip(err) && read == subpgsize) {
 				printk(PRINT_PREF "ECC correction at %#llx\n",
@@ -344,7 +340,7 @@ static int is_block_bad(int ebnum)
 	loff_t addr = ebnum * mtd->erasesize;
 	int ret;
 
-	ret = mtd->block_isbad(mtd, addr);
+	ret = mtd_block_isbad(mtd, addr);
 	if (ret)
 		printk(PRINT_PREF "block %d is bad\n", ebnum);
 	return ret;
diff --git a/drivers/mtd/tests/mtd_torturetest.c b/drivers/mtd/tests/mtd_torturetest.c
index 03ab649a6964..b65861bc7b8e 100644
--- a/drivers/mtd/tests/mtd_torturetest.c
+++ b/drivers/mtd/tests/mtd_torturetest.c
@@ -105,7 +105,7 @@ static inline int erase_eraseblock(int ebnum)
 	ei.addr = addr;
 	ei.len  = mtd->erasesize;
 
-	err = mtd->erase(mtd, &ei);
+	err = mtd_erase(mtd, &ei);
 	if (err) {
 		printk(PRINT_PREF "error %d while erasing EB %d\n", err, ebnum);
 		return err;
@@ -127,7 +127,7 @@ static inline int erase_eraseblock(int ebnum)
 static inline int check_eraseblock(int ebnum, unsigned char *buf)
 {
 	int err, retries = 0;
-	size_t read = 0;
+	size_t read;
 	loff_t addr = ebnum * mtd->erasesize;
 	size_t len = mtd->erasesize;
 
@@ -137,7 +137,7 @@ static inline int check_eraseblock(int ebnum, unsigned char *buf)
 	}
 
 retry:
-	err = mtd->read(mtd, addr, len, &read, check_buf);
+	err = mtd_read(mtd, addr, len, &read, check_buf);
 	if (mtd_is_bitflip(err))
 		printk(PRINT_PREF "single bit flip occurred at EB %d "
 		       "MTD reported that it was fixed.\n", ebnum);
@@ -181,7 +181,7 @@ retry:
 static inline int write_pattern(int ebnum, void *buf)
 {
 	int err;
-	size_t written = 0;
+	size_t written;
 	loff_t addr = ebnum * mtd->erasesize;
 	size_t len = mtd->erasesize;
 
@@ -189,7 +189,7 @@ static inline int write_pattern(int ebnum, void *buf)
 		addr = (ebnum + 1) * mtd->erasesize - pgcnt * pgsize;
 		len = pgcnt * pgsize;
 	}
-	err = mtd->write(mtd, addr, len, &written, buf);
+	err = mtd_write(mtd, addr, len, &written, buf);
 	if (err) {
 		printk(PRINT_PREF "error %d while writing EB %d, written %zd"
 		      " bytes\n", err, ebnum, written);
@@ -290,10 +290,9 @@ static int __init tort_init(void)
 	 * Check if there is a bad eraseblock among those we are going to test.
 	 */
 	memset(&bad_ebs[0], 0, sizeof(int) * ebcnt);
-	if (mtd->block_isbad) {
+	if (mtd_can_have_bb(mtd)) {
 		for (i = eb; i < eb + ebcnt; i++) {
-			err = mtd->block_isbad(mtd,
-					       (loff_t)i * mtd->erasesize);
+			err = mtd_block_isbad(mtd, (loff_t)i * mtd->erasesize);
 
 			if (err < 0) {
 				printk(PRINT_PREF "block_isbad() returned %d "
diff --git a/drivers/mtd/ubi/build.c b/drivers/mtd/ubi/build.c
index 6c3fb5ab20f5..115749f20f9e 100644
--- a/drivers/mtd/ubi/build.c
+++ b/drivers/mtd/ubi/build.c
@@ -664,7 +664,7 @@ static int io_init(struct ubi_device *ubi)
 	ubi->peb_count  = mtd_div_by_eb(ubi->mtd->size, ubi->mtd);
 	ubi->flash_size = ubi->mtd->size;
 
-	if (ubi->mtd->block_isbad && ubi->mtd->block_markbad)
+	if (mtd_can_have_bb(ubi->mtd))
 		ubi->bad_allowed = 1;
 
 	if (ubi->mtd->type == MTD_NORFLASH) {
diff --git a/drivers/mtd/ubi/debug.c b/drivers/mtd/ubi/debug.c
index ab80c0debac8..e2cdebf40840 100644
--- a/drivers/mtd/ubi/debug.c
+++ b/drivers/mtd/ubi/debug.c
@@ -216,7 +216,7 @@ void ubi_dbg_dump_flash(struct ubi_device *ubi, int pnum, int offset, int len)
 	buf = vmalloc(len);
 	if (!buf)
 		return;
-	err = ubi->mtd->read(ubi->mtd, addr, len, &read, buf);
+	err = mtd_read(ubi->mtd, addr, len, &read, buf);
 	if (err && err != -EUCLEAN) {
 		ubi_err("error %d while reading %d bytes from PEB %d:%d, "
 			"read %zd bytes", err, len, pnum, offset, read);
diff --git a/drivers/mtd/ubi/eba.c b/drivers/mtd/ubi/eba.c
index fb7f19b62d91..cd26da8ad225 100644
--- a/drivers/mtd/ubi/eba.c
+++ b/drivers/mtd/ubi/eba.c
@@ -1028,12 +1028,14 @@ int ubi_eba_copy_leb(struct ubi_device *ubi, int from, int to,
 	 * 'ubi_wl_put_peb()' function on the @ubi->move_mutex. In turn, we are
 	 * holding @ubi->move_mutex and go sleep on the LEB lock. So, if the
 	 * LEB is already locked, we just do not move it and return
-	 * %MOVE_CANCEL_RACE, which means that UBI will re-try, but later.
+	 * %MOVE_RETRY. Note, we do not return %MOVE_CANCEL_RACE here because
+	 * we do not know the reasons of the contention - it may be just a
+	 * normal I/O on this LEB, so we want to re-try.
 	 */
 	err = leb_write_trylock(ubi, vol_id, lnum);
 	if (err) {
 		dbg_wl("contention on LEB %d:%d, cancel", vol_id, lnum);
-		return MOVE_CANCEL_RACE;
+		return MOVE_RETRY;
 	}
 
 	/*
diff --git a/drivers/mtd/ubi/io.c b/drivers/mtd/ubi/io.c
index f20b6f22f240..5cde4e5ca3e5 100644
--- a/drivers/mtd/ubi/io.c
+++ b/drivers/mtd/ubi/io.c
@@ -170,7 +170,7 @@ int ubi_io_read(const struct ubi_device *ubi, void *buf, int pnum, int offset,
 
 	addr = (loff_t)pnum * ubi->peb_size + offset;
 retry:
-	err = ubi->mtd->read(ubi->mtd, addr, len, &read, buf);
+	err = mtd_read(ubi->mtd, addr, len, &read, buf);
 	if (err) {
 		const char *errstr = mtd_is_eccerr(err) ? " (ECC error)" : "";
 
@@ -289,7 +289,7 @@ int ubi_io_write(struct ubi_device *ubi, const void *buf, int pnum, int offset,
 	}
 
 	addr = (loff_t)pnum * ubi->peb_size + offset;
-	err = ubi->mtd->write(ubi->mtd, addr, len, &written, buf);
+	err = mtd_write(ubi->mtd, addr, len, &written, buf);
 	if (err) {
 		ubi_err("error %d while writing %d bytes to PEB %d:%d, written "
 			"%zd bytes", err, len, pnum, offset, written);
@@ -361,7 +361,7 @@ retry:
 	ei.callback = erase_callback;
 	ei.priv     = (unsigned long)&wq;
 
-	err = ubi->mtd->erase(ubi->mtd, &ei);
+	err = mtd_erase(ubi->mtd, &ei);
 	if (err) {
 		if (retries++ < UBI_IO_RETRIES) {
 			dbg_io("error %d while erasing PEB %d, retry",
@@ -525,11 +525,10 @@ static int nor_erase_prepare(struct ubi_device *ubi, int pnum)
 	 * the header comment in scan.c for more information).
 	 */
 	addr = (loff_t)pnum * ubi->peb_size;
-	err = ubi->mtd->write(ubi->mtd, addr, 4, &written, (void *)&data);
+	err = mtd_write(ubi->mtd, addr, 4, &written, (void *)&data);
 	if (!err) {
 		addr += ubi->vid_hdr_aloffset;
-		err = ubi->mtd->write(ubi->mtd, addr, 4, &written,
-				      (void *)&data);
+		err = mtd_write(ubi->mtd, addr, 4, &written, (void *)&data);
 		if (!err)
 			return 0;
 	}
@@ -635,7 +634,7 @@ int ubi_io_is_bad(const struct ubi_device *ubi, int pnum)
 	if (ubi->bad_allowed) {
 		int ret;
 
-		ret = mtd->block_isbad(mtd, (loff_t)pnum * ubi->peb_size);
+		ret = mtd_block_isbad(mtd, (loff_t)pnum * ubi->peb_size);
 		if (ret < 0)
 			ubi_err("error %d while checking if PEB %d is bad",
 				ret, pnum);
@@ -670,7 +669,7 @@ int ubi_io_mark_bad(const struct ubi_device *ubi, int pnum)
 	if (!ubi->bad_allowed)
 		return 0;
 
-	err = mtd->block_markbad(mtd, (loff_t)pnum * ubi->peb_size);
+	err = mtd_block_markbad(mtd, (loff_t)pnum * ubi->peb_size);
 	if (err)
 		ubi_err("cannot mark PEB %d bad, error %d", pnum, err);
 	return err;
@@ -1357,7 +1356,7 @@ int ubi_dbg_check_write(struct ubi_device *ubi, const void *buf, int pnum,
 		return 0;
 	}
 
-	err = ubi->mtd->read(ubi->mtd, addr, len, &read, buf1);
+	err = mtd_read(ubi->mtd, addr, len, &read, buf1);
 	if (err && !mtd_is_bitflip(err))
 		goto out_free;
 
@@ -1421,7 +1420,7 @@ int ubi_dbg_check_all_ff(struct ubi_device *ubi, int pnum, int offset, int len)
 		return 0;
 	}
 
-	err = ubi->mtd->read(ubi->mtd, addr, len, &read, buf);
+	err = mtd_read(ubi->mtd, addr, len, &read, buf);
 	if (err && !mtd_is_bitflip(err)) {
 		ubi_err("error %d while reading %d bytes from PEB %d:%d, "
 			"read %zd bytes", err, len, pnum, offset, read);
diff --git a/drivers/mtd/ubi/kapi.c b/drivers/mtd/ubi/kapi.c
index 1a35fc5e3b40..9fdb35367fe0 100644
--- a/drivers/mtd/ubi/kapi.c
+++ b/drivers/mtd/ubi/kapi.c
@@ -714,9 +714,7 @@ int ubi_sync(int ubi_num)
 	if (!ubi)
 		return -ENODEV;
 
-	if (ubi->mtd->sync)
-		ubi->mtd->sync(ubi->mtd);
-
+	mtd_sync(ubi->mtd);
 	ubi_put_device(ubi);
 	return 0;
 }
diff --git a/drivers/mtd/ubi/ubi.h b/drivers/mtd/ubi/ubi.h
index dc64c767fd21..d51d75d34446 100644
--- a/drivers/mtd/ubi/ubi.h
+++ b/drivers/mtd/ubi/ubi.h
@@ -120,6 +120,7 @@ enum {
  *                     PEB
  * MOVE_CANCEL_BITFLIPS: canceled because a bit-flip was detected in the
  *                       target PEB
+ * MOVE_RETRY: retry scrubbing the PEB
  */
 enum {
 	MOVE_CANCEL_RACE = 1,
@@ -127,6 +128,7 @@ enum {
 	MOVE_TARGET_RD_ERR,
 	MOVE_TARGET_WR_ERR,
 	MOVE_CANCEL_BITFLIPS,
+	MOVE_RETRY,
 };
 
 /**
diff --git a/drivers/mtd/ubi/wl.c b/drivers/mtd/ubi/wl.c
index 42c684cf3688..0696e36b0539 100644
--- a/drivers/mtd/ubi/wl.c
+++ b/drivers/mtd/ubi/wl.c
@@ -795,7 +795,10 @@ static int wear_leveling_worker(struct ubi_device *ubi, struct ubi_work *wrk,
 			protect = 1;
 			goto out_not_moved;
 		}
-
+		if (err == MOVE_RETRY) {
+			scrubbing = 1;
+			goto out_not_moved;
+		}
 		if (err == MOVE_CANCEL_BITFLIPS || err == MOVE_TARGET_WR_ERR ||
 		    err == MOVE_TARGET_RD_ERR) {
 			/*
@@ -1049,7 +1052,6 @@ static int erase_worker(struct ubi_device *ubi, struct ubi_work *wl_wrk,
 
 	ubi_err("failed to erase PEB %d, error %d", pnum, err);
 	kfree(wl_wrk);
-	kmem_cache_free(ubi_wl_entry_slab, e);
 
 	if (err == -EINTR || err == -ENOMEM || err == -EAGAIN ||
 	    err == -EBUSY) {
@@ -1062,14 +1064,16 @@ static int erase_worker(struct ubi_device *ubi, struct ubi_work *wl_wrk,
 			goto out_ro;
 		}
 		return err;
-	} else if (err != -EIO) {
+	}
+
+	kmem_cache_free(ubi_wl_entry_slab, e);
+	if (err != -EIO)
 		/*
 		 * If this is not %-EIO, we have no idea what to do. Scheduling
 		 * this physical eraseblock for erasure again would cause
 		 * errors again and again. Well, lets switch to R/O mode.
 		 */
 		goto out_ro;
-	}
 
 	/* It is %-EIO, the PEB went bad */
 
diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 9845afb37cc8..b98285446a5a 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -342,4 +342,6 @@ config VMXNET3
 	  To compile this driver as a module, choose M here: the
 	  module will be called vmxnet3.
 
+source "drivers/net/hyperv/Kconfig"
+
 endif # NETDEVICES
diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index 1988881853ab..a6b8ce11a22f 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -68,3 +68,5 @@ obj-$(CONFIG_USB_USBNET)        += usb/
 obj-$(CONFIG_USB_ZD1201)        += usb/
 obj-$(CONFIG_USB_IPHETH)        += usb/
 obj-$(CONFIG_USB_CDC_PHONET)   += usb/
+
+obj-$(CONFIG_HYPERV_NET) += hyperv/
diff --git a/drivers/net/can/flexcan.c b/drivers/net/can/flexcan.c
index 165a4c798025..7fd8089946fb 100644
--- a/drivers/net/can/flexcan.c
+++ b/drivers/net/can/flexcan.c
@@ -802,7 +802,7 @@ static int flexcan_open(struct net_device *dev)
 	struct flexcan_priv *priv = netdev_priv(dev);
 	int err;
 
-	clk_enable(priv->clk);
+	clk_prepare_enable(priv->clk);
 
 	err = open_candev(dev);
 	if (err)
@@ -824,7 +824,7 @@ static int flexcan_open(struct net_device *dev)
  out_close:
 	close_candev(dev);
  out:
-	clk_disable(priv->clk);
+	clk_disable_unprepare(priv->clk);
 
 	return err;
 }
@@ -838,7 +838,7 @@ static int flexcan_close(struct net_device *dev)
 	flexcan_chip_stop(dev);
 
 	free_irq(dev->irq, dev);
-	clk_disable(priv->clk);
+	clk_disable_unprepare(priv->clk);
 
 	close_candev(dev);
 
@@ -877,7 +877,7 @@ static int __devinit register_flexcandev(struct net_device *dev)
 	struct flexcan_regs __iomem *regs = priv->base;
 	u32 reg, err;
 
-	clk_enable(priv->clk);
+	clk_prepare_enable(priv->clk);
 
 	/* select "bus clock", chip must be disabled */
 	flexcan_chip_disable(priv);
@@ -911,7 +911,7 @@ static int __devinit register_flexcandev(struct net_device *dev)
  out:
 	/* disable core and turn off clocks */
 	flexcan_chip_disable(priv);
-	clk_disable(priv->clk);
+	clk_disable_unprepare(priv->clk);
 
 	return err;
 }
diff --git a/drivers/net/ethernet/Makefile b/drivers/net/ethernet/Makefile
index cd6d69a6a7d2..08d5f0388877 100644
--- a/drivers/net/ethernet/Makefile
+++ b/drivers/net/ethernet/Makefile
@@ -10,7 +10,7 @@ obj-$(CONFIG_NET_VENDOR_ALTEON) += alteon/
 obj-$(CONFIG_NET_VENDOR_AMD) += amd/
 obj-$(CONFIG_NET_VENDOR_APPLE) += apple/
 obj-$(CONFIG_NET_VENDOR_ATHEROS) += atheros/
-obj-$(CONFIG_NET_ATMEL) += cadence/
+obj-$(CONFIG_NET_CADENCE) += cadence/
 obj-$(CONFIG_NET_BFIN) += adi/
 obj-$(CONFIG_NET_VENDOR_BROADCOM) += broadcom/
 obj-$(CONFIG_NET_VENDOR_BROCADE) += brocade/
diff --git a/drivers/net/ethernet/broadcom/bcm63xx_enet.c b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
index a11a8ad94226..d44331eb07fe 100644
--- a/drivers/net/ethernet/broadcom/bcm63xx_enet.c
+++ b/drivers/net/ethernet/broadcom/bcm63xx_enet.c
@@ -1469,7 +1469,7 @@ static int bcm_enet_set_pauseparam(struct net_device *dev,
 	return 0;
 }
 
-static struct ethtool_ops bcm_enet_ethtool_ops = {
+static const struct ethtool_ops bcm_enet_ethtool_ops = {
 	.get_strings		= bcm_enet_get_strings,
 	.get_sset_count		= bcm_enet_get_sset_count,
 	.get_ethtool_stats      = bcm_enet_get_ethtool_stats,
diff --git a/drivers/net/ethernet/cadence/Kconfig b/drivers/net/ethernet/cadence/Kconfig
index b48378a41e49..db931916da08 100644
--- a/drivers/net/ethernet/cadence/Kconfig
+++ b/drivers/net/ethernet/cadence/Kconfig
@@ -5,8 +5,8 @@
 config HAVE_NET_MACB
 	bool
 
-config NET_ATMEL
-	bool "Atmel devices"
+config NET_CADENCE
+	bool "Cadence devices"
 	default y
 	depends on HAVE_NET_MACB || (ARM && ARCH_AT91RM9200)
 	---help---
@@ -21,7 +21,7 @@ config NET_ATMEL
 	  the remaining Atmel network card questions. If you say Y, you will be
 	  asked for your specific card in the following questions.
 
-if NET_ATMEL
+if NET_CADENCE
 
 config ARM_AT91_ETHER
 	tristate "AT91RM9200 Ethernet support"
@@ -33,14 +33,16 @@ config ARM_AT91_ETHER
 	  ethernet support, then you should always answer Y to this.
 
 config MACB
-	tristate "Atmel MACB support"
+	tristate "Cadence MACB/GEM support"
 	depends on HAVE_NET_MACB
 	select PHYLIB
 	---help---
-	  The Atmel MACB ethernet interface is found on many AT32 and AT91
-	  parts. Say Y to include support for the MACB chip.
+	  The Cadence MACB ethernet interface is found on many Atmel AT32 and
+	  AT91 parts.  This driver also supports the Cadence GEM (Gigabit
+	  Ethernet MAC found in some ARM SoC devices).  Note: the Gigabit mode
+	  is not yet supported.  Say Y to include support for the MACB/GEM chip.
 
 	  To compile this driver as a module, choose M here: the module
 	  will be called macb.
 
-endif # NET_ATMEL
+endif # NET_CADENCE
diff --git a/drivers/net/ethernet/cadence/at91_ether.c b/drivers/net/ethernet/cadence/at91_ether.c
index 56624d303487..1a5b6efa0120 100644
--- a/drivers/net/ethernet/cadence/at91_ether.c
+++ b/drivers/net/ethernet/cadence/at91_ether.c
@@ -26,6 +26,7 @@
 #include <linux/skbuff.h>
 #include <linux/dma-mapping.h>
 #include <linux/ethtool.h>
+#include <linux/platform_data/macb.h>
 #include <linux/platform_device.h>
 #include <linux/clk.h>
 #include <linux/gfp.h>
@@ -255,8 +256,7 @@ static void enable_phyirq(struct net_device *dev)
 	unsigned int dsintr, irq_number;
 	int status;
 
-	irq_number = lp->board_data.phy_irq_pin;
-	if (!irq_number) {
+	if (!gpio_is_valid(lp->board_data.phy_irq_pin)) {
 		/*
 		 * PHY doesn't have an IRQ pin (RTL8201, DP83847, AC101L),
 		 * or board does not have it connected.
@@ -265,6 +265,7 @@ static void enable_phyirq(struct net_device *dev)
 		return;
 	}
 
+	irq_number = lp->board_data.phy_irq_pin;
 	status = request_irq(irq_number, at91ether_phy_interrupt, 0, dev->name, dev);
 	if (status) {
 		printk(KERN_ERR "at91_ether: PHY IRQ %d request failed - status %d!\n", irq_number, status);
@@ -319,8 +320,7 @@ static void disable_phyirq(struct net_device *dev)
 	unsigned int dsintr;
 	unsigned int irq_number;
 
-	irq_number = lp->board_data.phy_irq_pin;
-	if (!irq_number) {
+	if (!gpio_is_valid(lp->board_data.phy_irq_pin)) {
 		del_timer_sync(&lp->check_timer);
 		return;
 	}
@@ -365,6 +365,7 @@ static void disable_phyirq(struct net_device *dev)
 	disable_mdi();
 	spin_unlock_irq(&lp->lock);
 
+	irq_number = lp->board_data.phy_irq_pin;
 	free_irq(irq_number, dev);			/* Free interrupt handler */
 }
 
@@ -984,7 +985,7 @@ static const struct net_device_ops at91ether_netdev_ops = {
 static int __init at91ether_setup(unsigned long phy_type, unsigned short phy_address,
 			struct platform_device *pdev, struct clk *ether_clk)
 {
-	struct at91_eth_data *board_data = pdev->dev.platform_data;
+	struct macb_platform_data *board_data = pdev->dev.platform_data;
 	struct net_device *dev;
 	struct at91_private *lp;
 	unsigned int val;
@@ -1077,7 +1078,7 @@ static int __init at91ether_setup(unsigned long phy_type, unsigned short phy_add
 	netif_carrier_off(dev);		/* will be enabled in open() */
 
 	/* If board has no PHY IRQ, use a timer to poll the PHY */
-	if (!lp->board_data.phy_irq_pin) {
+	if (!gpio_is_valid(lp->board_data.phy_irq_pin)) {
 		init_timer(&lp->check_timer);
 		lp->check_timer.data = (unsigned long)dev;
 		lp->check_timer.function = at91ether_check_link;
@@ -1169,7 +1170,8 @@ static int __devexit at91ether_remove(struct platform_device *pdev)
 	struct net_device *dev = platform_get_drvdata(pdev);
 	struct at91_private *lp = netdev_priv(dev);
 
-	if (lp->board_data.phy_irq_pin >= 32)
+	if (gpio_is_valid(lp->board_data.phy_irq_pin) &&
+	    lp->board_data.phy_irq_pin >= 32)
 		gpio_free(lp->board_data.phy_irq_pin);
 
 	unregister_netdev(dev);
@@ -1188,11 +1190,12 @@ static int at91ether_suspend(struct platform_device *pdev, pm_message_t mesg)
 {
 	struct net_device *net_dev = platform_get_drvdata(pdev);
 	struct at91_private *lp = netdev_priv(net_dev);
-	int phy_irq = lp->board_data.phy_irq_pin;
 
 	if (netif_running(net_dev)) {
-		if (phy_irq)
+		if (gpio_is_valid(lp->board_data.phy_irq_pin)) {
+			int phy_irq = lp->board_data.phy_irq_pin;
 			disable_irq(phy_irq);
+		}
 
 		netif_stop_queue(net_dev);
 		netif_device_detach(net_dev);
@@ -1206,7 +1209,6 @@ static int at91ether_resume(struct platform_device *pdev)
 {
 	struct net_device *net_dev = platform_get_drvdata(pdev);
 	struct at91_private *lp = netdev_priv(net_dev);
-	int phy_irq = lp->board_data.phy_irq_pin;
 
 	if (netif_running(net_dev)) {
 		clk_enable(lp->ether_clk);
@@ -1214,8 +1216,10 @@ static int at91ether_resume(struct platform_device *pdev)
 		netif_device_attach(net_dev);
 		netif_start_queue(net_dev);
 
-		if (phy_irq)
+		if (gpio_is_valid(lp->board_data.phy_irq_pin)) {
+			int phy_irq = lp->board_data.phy_irq_pin;
 			enable_irq(phy_irq);
+		}
 	}
 	return 0;
 }
diff --git a/drivers/net/ethernet/cadence/at91_ether.h b/drivers/net/ethernet/cadence/at91_ether.h
index 353f4dab62be..3725fbb0defe 100644
--- a/drivers/net/ethernet/cadence/at91_ether.h
+++ b/drivers/net/ethernet/cadence/at91_ether.h
@@ -85,7 +85,9 @@ struct recv_desc_bufs
 struct at91_private
 {
 	struct mii_if_info mii;			/* ethtool support */
-	struct at91_eth_data board_data;	/* board-specific configuration */
+	struct macb_platform_data board_data;	/* board-specific
+						 * configuration (shared with
+						 * macb for common data */
 	struct clk *ether_clk;			/* clock */
 
 	/* PHY */
diff --git a/drivers/net/ethernet/cadence/macb.c b/drivers/net/ethernet/cadence/macb.c
index a437b46e5490..f3d5c65d99cf 100644
--- a/drivers/net/ethernet/cadence/macb.c
+++ b/drivers/net/ethernet/cadence/macb.c
@@ -1,5 +1,5 @@
 /*
- * Atmel MACB Ethernet Controller driver
+ * Cadence MACB/GEM Ethernet Controller driver
  *
  * Copyright (C) 2004-2006 Atmel Corporation
  *
@@ -8,6 +8,7 @@
  * published by the Free Software Foundation.
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 #include <linux/clk.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
@@ -19,11 +20,12 @@
 #include <linux/netdevice.h>
 #include <linux/etherdevice.h>
 #include <linux/dma-mapping.h>
+#include <linux/platform_data/macb.h>
 #include <linux/platform_device.h>
 #include <linux/phy.h>
-
-#include <mach/board.h>
-#include <mach/cpu.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/of_net.h>
 
 #include "macb.h"
 
@@ -60,9 +62,9 @@ static void __macb_set_hwaddr(struct macb *bp)
 	u16 top;
 
 	bottom = cpu_to_le32(*((u32 *)bp->dev->dev_addr));
-	macb_writel(bp, SA1B, bottom);
+	macb_or_gem_writel(bp, SA1B, bottom);
 	top = cpu_to_le16(*((u16 *)(bp->dev->dev_addr + 4)));
-	macb_writel(bp, SA1T, top);
+	macb_or_gem_writel(bp, SA1T, top);
 }
 
 static void __init macb_get_hwaddr(struct macb *bp)
@@ -71,8 +73,8 @@ static void __init macb_get_hwaddr(struct macb *bp)
 	u16 top;
 	u8 addr[6];
 
-	bottom = macb_readl(bp, SA1B);
-	top = macb_readl(bp, SA1T);
+	bottom = macb_or_gem_readl(bp, SA1B);
+	top = macb_or_gem_readl(bp, SA1T);
 
 	addr[0] = bottom & 0xff;
 	addr[1] = (bottom >> 8) & 0xff;
@@ -84,7 +86,7 @@ static void __init macb_get_hwaddr(struct macb *bp)
 	if (is_valid_ether_addr(addr)) {
 		memcpy(bp->dev->dev_addr, addr, sizeof(addr));
 	} else {
-		dev_info(&bp->pdev->dev, "invalid hw address, using random\n");
+		netdev_info(bp->dev, "invalid hw address, using random\n");
 		random_ether_addr(bp->dev->dev_addr);
 	}
 }
@@ -178,11 +180,12 @@ static void macb_handle_link_change(struct net_device *dev)
 
 	if (status_change) {
 		if (phydev->link)
-			printk(KERN_INFO "%s: link up (%d/%s)\n",
-			       dev->name, phydev->speed,
-			       DUPLEX_FULL == phydev->duplex ? "Full":"Half");
+			netdev_info(dev, "link up (%d/%s)\n",
+				    phydev->speed,
+				    phydev->duplex == DUPLEX_FULL ?
+				    "Full" : "Half");
 		else
-			printk(KERN_INFO "%s: link down\n", dev->name);
+			netdev_info(dev, "link down\n");
 	}
 }
 
@@ -191,25 +194,21 @@ static int macb_mii_probe(struct net_device *dev)
 {
 	struct macb *bp = netdev_priv(dev);
 	struct phy_device *phydev;
-	struct eth_platform_data *pdata;
 	int ret;
 
 	phydev = phy_find_first(bp->mii_bus);
 	if (!phydev) {
-		printk (KERN_ERR "%s: no PHY found\n", dev->name);
+		netdev_err(dev, "no PHY found\n");
 		return -1;
 	}
 
-	pdata = bp->pdev->dev.platform_data;
 	/* TODO : add pin_irq */
 
 	/* attach the mac to the phy */
 	ret = phy_connect_direct(dev, phydev, &macb_handle_link_change, 0,
-				 pdata && pdata->is_rmii ?
-				 PHY_INTERFACE_MODE_RMII :
-				 PHY_INTERFACE_MODE_MII);
+				 bp->phy_interface);
 	if (ret) {
-		printk(KERN_ERR "%s: Could not attach to PHY\n", dev->name);
+		netdev_err(dev, "Could not attach to PHY\n");
 		return ret;
 	}
 
@@ -228,7 +227,7 @@ static int macb_mii_probe(struct net_device *dev)
 
 static int macb_mii_init(struct macb *bp)
 {
-	struct eth_platform_data *pdata;
+	struct macb_platform_data *pdata;
 	int err = -ENXIO, i;
 
 	/* Enable management port */
@@ -285,8 +284,8 @@ err_out:
 static void macb_update_stats(struct macb *bp)
 {
 	u32 __iomem *reg = bp->regs + MACB_PFR;
-	u32 *p = &bp->hw_stats.rx_pause_frames;
-	u32 *end = &bp->hw_stats.tx_pause_frames + 1;
+	u32 *p = &bp->hw_stats.macb.rx_pause_frames;
+	u32 *end = &bp->hw_stats.macb.tx_pause_frames + 1;
 
 	WARN_ON((unsigned long)(end - p - 1) != (MACB_TPF - MACB_PFR) / 4);
 
@@ -303,14 +302,13 @@ static void macb_tx(struct macb *bp)
 	status = macb_readl(bp, TSR);
 	macb_writel(bp, TSR, status);
 
-	dev_dbg(&bp->pdev->dev, "macb_tx status = %02lx\n",
-		(unsigned long)status);
+	netdev_dbg(bp->dev, "macb_tx status = %02lx\n", (unsigned long)status);
 
 	if (status & (MACB_BIT(UND) | MACB_BIT(TSR_RLE))) {
 		int i;
-		printk(KERN_ERR "%s: TX %s, resetting buffers\n",
-			bp->dev->name, status & MACB_BIT(UND) ?
-			"underrun" : "retry limit exceeded");
+		netdev_err(bp->dev, "TX %s, resetting buffers\n",
+			   status & MACB_BIT(UND) ?
+			   "underrun" : "retry limit exceeded");
 
 		/* Transfer ongoing, disable transmitter, to avoid confusion */
 		if (status & MACB_BIT(TGO))
@@ -369,8 +367,8 @@ static void macb_tx(struct macb *bp)
 		if (!(bufstat & MACB_BIT(TX_USED)))
 			break;
 
-		dev_dbg(&bp->pdev->dev, "skb %u (data %p) TX complete\n",
-			tail, skb->data);
+		netdev_dbg(bp->dev, "skb %u (data %p) TX complete\n",
+			   tail, skb->data);
 		dma_unmap_single(&bp->pdev->dev, rp->mapping, skb->len,
 				 DMA_TO_DEVICE);
 		bp->stats.tx_packets++;
@@ -395,8 +393,8 @@ static int macb_rx_frame(struct macb *bp, unsigned int first_frag,
 
 	len = MACB_BFEXT(RX_FRMLEN, bp->rx_ring[last_frag].ctrl);
 
-	dev_dbg(&bp->pdev->dev, "macb_rx_frame frags %u - %u (len %u)\n",
-		first_frag, last_frag, len);
+	netdev_dbg(bp->dev, "macb_rx_frame frags %u - %u (len %u)\n",
+		   first_frag, last_frag, len);
 
 	skb = dev_alloc_skb(len + RX_OFFSET);
 	if (!skb) {
@@ -437,8 +435,8 @@ static int macb_rx_frame(struct macb *bp, unsigned int first_frag,
 
 	bp->stats.rx_packets++;
 	bp->stats.rx_bytes += len;
-	dev_dbg(&bp->pdev->dev, "received skb of length %u, csum: %08x\n",
-		skb->len, skb->csum);
+	netdev_dbg(bp->dev, "received skb of length %u, csum: %08x\n",
+		   skb->len, skb->csum);
 	netif_receive_skb(skb);
 
 	return 0;
@@ -515,8 +513,8 @@ static int macb_poll(struct napi_struct *napi, int budget)
 
 	work_done = 0;
 
-	dev_dbg(&bp->pdev->dev, "poll: status = %08lx, budget = %d\n",
-		(unsigned long)status, budget);
+	netdev_dbg(bp->dev, "poll: status = %08lx, budget = %d\n",
+		   (unsigned long)status, budget);
 
 	work_done = macb_rx(bp, budget);
 	if (work_done < budget) {
@@ -565,8 +563,7 @@ static irqreturn_t macb_interrupt(int irq, void *dev_id)
 			macb_writel(bp, IDR, MACB_RX_INT_FLAGS);
 
 			if (napi_schedule_prep(&bp->napi)) {
-				dev_dbg(&bp->pdev->dev,
-					"scheduling RX softirq\n");
+				netdev_dbg(bp->dev, "scheduling RX softirq\n");
 				__napi_schedule(&bp->napi);
 			}
 		}
@@ -582,16 +579,19 @@ static irqreturn_t macb_interrupt(int irq, void *dev_id)
 
 		if (status & MACB_BIT(ISR_ROVR)) {
 			/* We missed at least one packet */
-			bp->hw_stats.rx_overruns++;
+			if (macb_is_gem(bp))
+				bp->hw_stats.gem.rx_overruns++;
+			else
+				bp->hw_stats.macb.rx_overruns++;
 		}
 
 		if (status & MACB_BIT(HRESP)) {
 			/*
-			 * TODO: Reset the hardware, and maybe move the printk
-			 * to a lower-priority context as well (work queue?)
+			 * TODO: Reset the hardware, and maybe move the
+			 * netdev_err to a lower-priority context as well
+			 * (work queue?)
 			 */
-			printk(KERN_ERR "%s: DMA bus error: HRESP not OK\n",
-			       dev->name);
+			netdev_err(dev, "DMA bus error: HRESP not OK\n");
 		}
 
 		status = macb_readl(bp, ISR);
@@ -626,16 +626,12 @@ static int macb_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	unsigned long flags;
 
 #ifdef DEBUG
-	int i;
-	dev_dbg(&bp->pdev->dev,
-		"start_xmit: len %u head %p data %p tail %p end %p\n",
-		skb->len, skb->head, skb->data,
-		skb_tail_pointer(skb), skb_end_pointer(skb));
-	dev_dbg(&bp->pdev->dev,
-		"data:");
-	for (i = 0; i < 16; i++)
-		printk(" %02x", (unsigned int)skb->data[i]);
-	printk("\n");
+	netdev_dbg(bp->dev,
+		   "start_xmit: len %u head %p data %p tail %p end %p\n",
+		   skb->len, skb->head, skb->data,
+		   skb_tail_pointer(skb), skb_end_pointer(skb));
+	print_hex_dump(KERN_DEBUG, "data: ", DUMP_PREFIX_OFFSET, 16, 1,
+		       skb->data, 16, true);
 #endif
 
 	len = skb->len;
@@ -645,21 +641,20 @@ static int macb_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	if (TX_BUFFS_AVAIL(bp) < 1) {
 		netif_stop_queue(dev);
 		spin_unlock_irqrestore(&bp->lock, flags);
-		dev_err(&bp->pdev->dev,
-			"BUG! Tx Ring full when queue awake!\n");
-		dev_dbg(&bp->pdev->dev, "tx_head = %u, tx_tail = %u\n",
-			bp->tx_head, bp->tx_tail);
+		netdev_err(bp->dev, "BUG! Tx Ring full when queue awake!\n");
+		netdev_dbg(bp->dev, "tx_head = %u, tx_tail = %u\n",
+			   bp->tx_head, bp->tx_tail);
 		return NETDEV_TX_BUSY;
 	}
 
 	entry = bp->tx_head;
-	dev_dbg(&bp->pdev->dev, "Allocated ring entry %u\n", entry);
+	netdev_dbg(bp->dev, "Allocated ring entry %u\n", entry);
 	mapping = dma_map_single(&bp->pdev->dev, skb->data,
 				 len, DMA_TO_DEVICE);
 	bp->tx_skb[entry].skb = skb;
 	bp->tx_skb[entry].mapping = mapping;
-	dev_dbg(&bp->pdev->dev, "Mapped skb data %p to DMA addr %08lx\n",
-		skb->data, (unsigned long)mapping);
+	netdev_dbg(bp->dev, "Mapped skb data %p to DMA addr %08lx\n",
+		   skb->data, (unsigned long)mapping);
 
 	ctrl = MACB_BF(TX_FRMLEN, len);
 	ctrl |= MACB_BIT(TX_LAST);
@@ -723,27 +718,27 @@ static int macb_alloc_consistent(struct macb *bp)
 					 &bp->rx_ring_dma, GFP_KERNEL);
 	if (!bp->rx_ring)
 		goto out_err;
-	dev_dbg(&bp->pdev->dev,
-		"Allocated RX ring of %d bytes at %08lx (mapped %p)\n",
-		size, (unsigned long)bp->rx_ring_dma, bp->rx_ring);
+	netdev_dbg(bp->dev,
+		   "Allocated RX ring of %d bytes at %08lx (mapped %p)\n",
+		   size, (unsigned long)bp->rx_ring_dma, bp->rx_ring);
 
 	size = TX_RING_BYTES;
 	bp->tx_ring = dma_alloc_coherent(&bp->pdev->dev, size,
 					 &bp->tx_ring_dma, GFP_KERNEL);
 	if (!bp->tx_ring)
 		goto out_err;
-	dev_dbg(&bp->pdev->dev,
-		"Allocated TX ring of %d bytes at %08lx (mapped %p)\n",
-		size, (unsigned long)bp->tx_ring_dma, bp->tx_ring);
+	netdev_dbg(bp->dev,
+		   "Allocated TX ring of %d bytes at %08lx (mapped %p)\n",
+		   size, (unsigned long)bp->tx_ring_dma, bp->tx_ring);
 
 	size = RX_RING_SIZE * RX_BUFFER_SIZE;
 	bp->rx_buffers = dma_alloc_coherent(&bp->pdev->dev, size,
 					    &bp->rx_buffers_dma, GFP_KERNEL);
 	if (!bp->rx_buffers)
 		goto out_err;
-	dev_dbg(&bp->pdev->dev,
-		"Allocated RX buffers of %d bytes at %08lx (mapped %p)\n",
-		size, (unsigned long)bp->rx_buffers_dma, bp->rx_buffers);
+	netdev_dbg(bp->dev,
+		   "Allocated RX buffers of %d bytes at %08lx (mapped %p)\n",
+		   size, (unsigned long)bp->rx_buffers_dma, bp->rx_buffers);
 
 	return 0;
 
@@ -797,6 +792,84 @@ static void macb_reset_hw(struct macb *bp)
 	macb_readl(bp, ISR);
 }
 
+static u32 gem_mdc_clk_div(struct macb *bp)
+{
+	u32 config;
+	unsigned long pclk_hz = clk_get_rate(bp->pclk);
+
+	if (pclk_hz <= 20000000)
+		config = GEM_BF(CLK, GEM_CLK_DIV8);
+	else if (pclk_hz <= 40000000)
+		config = GEM_BF(CLK, GEM_CLK_DIV16);
+	else if (pclk_hz <= 80000000)
+		config = GEM_BF(CLK, GEM_CLK_DIV32);
+	else if (pclk_hz <= 120000000)
+		config = GEM_BF(CLK, GEM_CLK_DIV48);
+	else if (pclk_hz <= 160000000)
+		config = GEM_BF(CLK, GEM_CLK_DIV64);
+	else
+		config = GEM_BF(CLK, GEM_CLK_DIV96);
+
+	return config;
+}
+
+static u32 macb_mdc_clk_div(struct macb *bp)
+{
+	u32 config;
+	unsigned long pclk_hz;
+
+	if (macb_is_gem(bp))
+		return gem_mdc_clk_div(bp);
+
+	pclk_hz = clk_get_rate(bp->pclk);
+	if (pclk_hz <= 20000000)
+		config = MACB_BF(CLK, MACB_CLK_DIV8);
+	else if (pclk_hz <= 40000000)
+		config = MACB_BF(CLK, MACB_CLK_DIV16);
+	else if (pclk_hz <= 80000000)
+		config = MACB_BF(CLK, MACB_CLK_DIV32);
+	else
+		config = MACB_BF(CLK, MACB_CLK_DIV64);
+
+	return config;
+}
+
+/*
+ * Get the DMA bus width field of the network configuration register that we
+ * should program.  We find the width from decoding the design configuration
+ * register to find the maximum supported data bus width.
+ */
+static u32 macb_dbw(struct macb *bp)
+{
+	if (!macb_is_gem(bp))
+		return 0;
+
+	switch (GEM_BFEXT(DBWDEF, gem_readl(bp, DCFG1))) {
+	case 4:
+		return GEM_BF(DBW, GEM_DBW128);
+	case 2:
+		return GEM_BF(DBW, GEM_DBW64);
+	case 1:
+	default:
+		return GEM_BF(DBW, GEM_DBW32);
+	}
+}
+
+/*
+ * Configure the receive DMA engine to use the correct receive buffer size.
+ * This is a configurable parameter for GEM.
+ */
+static void macb_configure_dma(struct macb *bp)
+{
+	u32 dmacfg;
+
+	if (macb_is_gem(bp)) {
+		dmacfg = gem_readl(bp, DMACFG) & ~GEM_BF(RXBS, -1L);
+		dmacfg |= GEM_BF(RXBS, RX_BUFFER_SIZE / 64);
+		gem_writel(bp, DMACFG, dmacfg);
+	}
+}
+
 static void macb_init_hw(struct macb *bp)
 {
 	u32 config;
@@ -804,7 +877,7 @@ static void macb_init_hw(struct macb *bp)
 	macb_reset_hw(bp);
 	__macb_set_hwaddr(bp);
 
-	config = macb_readl(bp, NCFGR) & MACB_BF(CLK, -1L);
+	config = macb_mdc_clk_div(bp);
 	config |= MACB_BIT(PAE);		/* PAuse Enable */
 	config |= MACB_BIT(DRFCS);		/* Discard Rx FCS */
 	config |= MACB_BIT(BIG);		/* Receive oversized frames */
@@ -812,8 +885,11 @@ static void macb_init_hw(struct macb *bp)
 		config |= MACB_BIT(CAF);	/* Copy All Frames */
 	if (!(bp->dev->flags & IFF_BROADCAST))
 		config |= MACB_BIT(NBC);	/* No BroadCast */
+	config |= macb_dbw(bp);
 	macb_writel(bp, NCFGR, config);
 
+	macb_configure_dma(bp);
+
 	/* Initialize TX and RX buffers */
 	macb_writel(bp, RBQP, bp->rx_ring_dma);
 	macb_writel(bp, TBQP, bp->tx_ring_dma);
@@ -909,8 +985,8 @@ static void macb_sethashtable(struct net_device *dev)
 		mc_filter[bitnr >> 5] |= 1 << (bitnr & 31);
 	}
 
-	macb_writel(bp, HRB, mc_filter[0]);
-	macb_writel(bp, HRT, mc_filter[1]);
+	macb_or_gem_writel(bp, HRB, mc_filter[0]);
+	macb_or_gem_writel(bp, HRT, mc_filter[1]);
 }
 
 /*
@@ -932,8 +1008,8 @@ static void macb_set_rx_mode(struct net_device *dev)
 
 	if (dev->flags & IFF_ALLMULTI) {
 		/* Enable all multicast mode */
-		macb_writel(bp, HRB, -1);
-		macb_writel(bp, HRT, -1);
+		macb_or_gem_writel(bp, HRB, -1);
+		macb_or_gem_writel(bp, HRT, -1);
 		cfg |= MACB_BIT(NCFGR_MTI);
 	} else if (!netdev_mc_empty(dev)) {
 		/* Enable specific multicasts */
@@ -941,8 +1017,8 @@ static void macb_set_rx_mode(struct net_device *dev)
 		cfg |= MACB_BIT(NCFGR_MTI);
 	} else if (dev->flags & (~IFF_ALLMULTI)) {
 		/* Disable all multicast mode */
-		macb_writel(bp, HRB, 0);
-		macb_writel(bp, HRT, 0);
+		macb_or_gem_writel(bp, HRB, 0);
+		macb_or_gem_writel(bp, HRT, 0);
 		cfg &= ~MACB_BIT(NCFGR_MTI);
 	}
 
@@ -954,7 +1030,7 @@ static int macb_open(struct net_device *dev)
 	struct macb *bp = netdev_priv(dev);
 	int err;
 
-	dev_dbg(&bp->pdev->dev, "open\n");
+	netdev_dbg(bp->dev, "open\n");
 
 	/* if the phy is not yet register, retry later*/
 	if (!bp->phy_dev)
@@ -965,9 +1041,8 @@ static int macb_open(struct net_device *dev)
 
 	err = macb_alloc_consistent(bp);
 	if (err) {
-		printk(KERN_ERR
-		       "%s: Unable to allocate DMA memory (error %d)\n",
-		       dev->name, err);
+		netdev_err(dev, "Unable to allocate DMA memory (error %d)\n",
+			   err);
 		return err;
 	}
 
@@ -1005,11 +1080,62 @@ static int macb_close(struct net_device *dev)
 	return 0;
 }
 
+static void gem_update_stats(struct macb *bp)
+{
+	u32 __iomem *reg = bp->regs + GEM_OTX;
+	u32 *p = &bp->hw_stats.gem.tx_octets_31_0;
+	u32 *end = &bp->hw_stats.gem.rx_udp_checksum_errors + 1;
+
+	for (; p < end; p++, reg++)
+		*p += __raw_readl(reg);
+}
+
+static struct net_device_stats *gem_get_stats(struct macb *bp)
+{
+	struct gem_stats *hwstat = &bp->hw_stats.gem;
+	struct net_device_stats *nstat = &bp->stats;
+
+	gem_update_stats(bp);
+
+	nstat->rx_errors = (hwstat->rx_frame_check_sequence_errors +
+			    hwstat->rx_alignment_errors +
+			    hwstat->rx_resource_errors +
+			    hwstat->rx_overruns +
+			    hwstat->rx_oversize_frames +
+			    hwstat->rx_jabbers +
+			    hwstat->rx_undersized_frames +
+			    hwstat->rx_length_field_frame_errors);
+	nstat->tx_errors = (hwstat->tx_late_collisions +
+			    hwstat->tx_excessive_collisions +
+			    hwstat->tx_underrun +
+			    hwstat->tx_carrier_sense_errors);
+	nstat->multicast = hwstat->rx_multicast_frames;
+	nstat->collisions = (hwstat->tx_single_collision_frames +
+			     hwstat->tx_multiple_collision_frames +
+			     hwstat->tx_excessive_collisions);
+	nstat->rx_length_errors = (hwstat->rx_oversize_frames +
+				   hwstat->rx_jabbers +
+				   hwstat->rx_undersized_frames +
+				   hwstat->rx_length_field_frame_errors);
+	nstat->rx_over_errors = hwstat->rx_resource_errors;
+	nstat->rx_crc_errors = hwstat->rx_frame_check_sequence_errors;
+	nstat->rx_frame_errors = hwstat->rx_alignment_errors;
+	nstat->rx_fifo_errors = hwstat->rx_overruns;
+	nstat->tx_aborted_errors = hwstat->tx_excessive_collisions;
+	nstat->tx_carrier_errors = hwstat->tx_carrier_sense_errors;
+	nstat->tx_fifo_errors = hwstat->tx_underrun;
+
+	return nstat;
+}
+
 static struct net_device_stats *macb_get_stats(struct net_device *dev)
 {
 	struct macb *bp = netdev_priv(dev);
 	struct net_device_stats *nstat = &bp->stats;
-	struct macb_stats *hwstat = &bp->hw_stats;
+	struct macb_stats *hwstat = &bp->hw_stats.macb;
+
+	if (macb_is_gem(bp))
+		return gem_get_stats(bp);
 
 	/* read stats from hardware */
 	macb_update_stats(bp);
@@ -1117,14 +1243,59 @@ static const struct net_device_ops macb_netdev_ops = {
 #endif
 };
 
+#if defined(CONFIG_OF)
+static const struct of_device_id macb_dt_ids[] = {
+	{ .compatible = "cdns,at32ap7000-macb" },
+	{ .compatible = "cdns,at91sam9260-macb" },
+	{ .compatible = "cdns,macb" },
+	{ .compatible = "cdns,pc302-gem" },
+	{ .compatible = "cdns,gem" },
+	{ /* sentinel */ }
+};
+
+MODULE_DEVICE_TABLE(of, macb_dt_ids);
+
+static int __devinit macb_get_phy_mode_dt(struct platform_device *pdev)
+{
+	struct device_node *np = pdev->dev.of_node;
+
+	if (np)
+		return of_get_phy_mode(np);
+
+	return -ENODEV;
+}
+
+static int __devinit macb_get_hwaddr_dt(struct macb *bp)
+{
+	struct device_node *np = bp->pdev->dev.of_node;
+	if (np) {
+		const char *mac = of_get_mac_address(np);
+		if (mac) {
+			memcpy(bp->dev->dev_addr, mac, ETH_ALEN);
+			return 0;
+		}
+	}
+
+	return -ENODEV;
+}
+#else
+static int __devinit macb_get_phy_mode_dt(struct platform_device *pdev)
+{
+	return -ENODEV;
+}
+static int __devinit macb_get_hwaddr_dt(struct macb *bp)
+{
+	return -ENODEV;
+}
+#endif
+
 static int __init macb_probe(struct platform_device *pdev)
 {
-	struct eth_platform_data *pdata;
+	struct macb_platform_data *pdata;
 	struct resource *regs;
 	struct net_device *dev;
 	struct macb *bp;
 	struct phy_device *phydev;
-	unsigned long pclk_hz;
 	u32 config;
 	int err = -ENXIO;
 
@@ -1152,28 +1323,19 @@ static int __init macb_probe(struct platform_device *pdev)
 
 	spin_lock_init(&bp->lock);
 
-#if defined(CONFIG_ARCH_AT91)
-	bp->pclk = clk_get(&pdev->dev, "macb_clk");
+	bp->pclk = clk_get(&pdev->dev, "pclk");
 	if (IS_ERR(bp->pclk)) {
 		dev_err(&pdev->dev, "failed to get macb_clk\n");
 		goto err_out_free_dev;
 	}
 	clk_enable(bp->pclk);
-#else
-	bp->pclk = clk_get(&pdev->dev, "pclk");
-	if (IS_ERR(bp->pclk)) {
-		dev_err(&pdev->dev, "failed to get pclk\n");
-		goto err_out_free_dev;
-	}
+
 	bp->hclk = clk_get(&pdev->dev, "hclk");
 	if (IS_ERR(bp->hclk)) {
 		dev_err(&pdev->dev, "failed to get hclk\n");
 		goto err_out_put_pclk;
 	}
-
-	clk_enable(bp->pclk);
 	clk_enable(bp->hclk);
-#endif
 
 	bp->regs = ioremap(regs->start, resource_size(regs));
 	if (!bp->regs) {
@@ -1185,9 +1347,8 @@ static int __init macb_probe(struct platform_device *pdev)
 	dev->irq = platform_get_irq(pdev, 0);
 	err = request_irq(dev->irq, macb_interrupt, 0, dev->name, dev);
 	if (err) {
-		printk(KERN_ERR
-		       "%s: Unable to request IRQ %d (error %d)\n",
-		       dev->name, dev->irq, err);
+		dev_err(&pdev->dev, "Unable to request IRQ %d (error %d)\n",
+			dev->irq, err);
 		goto err_out_iounmap;
 	}
 
@@ -1198,31 +1359,37 @@ static int __init macb_probe(struct platform_device *pdev)
 	dev->base_addr = regs->start;
 
 	/* Set MII management clock divider */
-	pclk_hz = clk_get_rate(bp->pclk);
-	if (pclk_hz <= 20000000)
-		config = MACB_BF(CLK, MACB_CLK_DIV8);
-	else if (pclk_hz <= 40000000)
-		config = MACB_BF(CLK, MACB_CLK_DIV16);
-	else if (pclk_hz <= 80000000)
-		config = MACB_BF(CLK, MACB_CLK_DIV32);
-	else
-		config = MACB_BF(CLK, MACB_CLK_DIV64);
+	config = macb_mdc_clk_div(bp);
+	config |= macb_dbw(bp);
 	macb_writel(bp, NCFGR, config);
 
-	macb_get_hwaddr(bp);
-	pdata = pdev->dev.platform_data;
+	err = macb_get_hwaddr_dt(bp);
+	if (err < 0)
+		macb_get_hwaddr(bp);
+
+	err = macb_get_phy_mode_dt(pdev);
+	if (err < 0) {
+		pdata = pdev->dev.platform_data;
+		if (pdata && pdata->is_rmii)
+			bp->phy_interface = PHY_INTERFACE_MODE_RMII;
+		else
+			bp->phy_interface = PHY_INTERFACE_MODE_MII;
+	} else {
+		bp->phy_interface = err;
+	}
 
-	if (pdata && pdata->is_rmii)
+	if (bp->phy_interface == PHY_INTERFACE_MODE_RMII)
 #if defined(CONFIG_ARCH_AT91)
-		macb_writel(bp, USRIO, (MACB_BIT(RMII) | MACB_BIT(CLKEN)) );
+		macb_or_gem_writel(bp, USRIO, (MACB_BIT(RMII) |
+					       MACB_BIT(CLKEN)));
 #else
-		macb_writel(bp, USRIO, 0);
+		macb_or_gem_writel(bp, USRIO, 0);
 #endif
 	else
 #if defined(CONFIG_ARCH_AT91)
-		macb_writel(bp, USRIO, MACB_BIT(CLKEN));
+		macb_or_gem_writel(bp, USRIO, MACB_BIT(CLKEN));
 #else
-		macb_writel(bp, USRIO, MACB_BIT(MII));
+		macb_or_gem_writel(bp, USRIO, MACB_BIT(MII));
 #endif
 
 	bp->tx_pending = DEF_TX_RING_PENDING;
@@ -1239,13 +1406,13 @@ static int __init macb_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, dev);
 
-	printk(KERN_INFO "%s: Atmel MACB at 0x%08lx irq %d (%pM)\n",
-	       dev->name, dev->base_addr, dev->irq, dev->dev_addr);
+	netdev_info(dev, "Cadence %s at 0x%08lx irq %d (%pM)\n",
+		    macb_is_gem(bp) ? "GEM" : "MACB", dev->base_addr,
+		    dev->irq, dev->dev_addr);
 
 	phydev = bp->phy_dev;
-	printk(KERN_INFO "%s: attached PHY driver [%s] "
-		"(mii_bus:phy_addr=%s, irq=%d)\n", dev->name,
-		phydev->drv->name, dev_name(&phydev->dev), phydev->irq);
+	netdev_info(dev, "attached PHY driver [%s] (mii_bus:phy_addr=%s, irq=%d)\n",
+		    phydev->drv->name, dev_name(&phydev->dev), phydev->irq);
 
 	return 0;
 
@@ -1256,14 +1423,10 @@ err_out_free_irq:
 err_out_iounmap:
 	iounmap(bp->regs);
 err_out_disable_clocks:
-#ifndef CONFIG_ARCH_AT91
 	clk_disable(bp->hclk);
 	clk_put(bp->hclk);
-#endif
 	clk_disable(bp->pclk);
-#ifndef CONFIG_ARCH_AT91
 err_out_put_pclk:
-#endif
 	clk_put(bp->pclk);
 err_out_free_dev:
 	free_netdev(dev);
@@ -1289,10 +1452,8 @@ static int __exit macb_remove(struct platform_device *pdev)
 		unregister_netdev(dev);
 		free_irq(dev->irq, dev);
 		iounmap(bp->regs);
-#ifndef CONFIG_ARCH_AT91
 		clk_disable(bp->hclk);
 		clk_put(bp->hclk);
-#endif
 		clk_disable(bp->pclk);
 		clk_put(bp->pclk);
 		free_netdev(dev);
@@ -1310,9 +1471,7 @@ static int macb_suspend(struct platform_device *pdev, pm_message_t state)
 
 	netif_device_detach(netdev);
 
-#ifndef CONFIG_ARCH_AT91
 	clk_disable(bp->hclk);
-#endif
 	clk_disable(bp->pclk);
 
 	return 0;
@@ -1324,9 +1483,7 @@ static int macb_resume(struct platform_device *pdev)
 	struct macb *bp = netdev_priv(netdev);
 
 	clk_enable(bp->pclk);
-#ifndef CONFIG_ARCH_AT91
 	clk_enable(bp->hclk);
-#endif
 
 	netif_device_attach(netdev);
 
@@ -1344,6 +1501,7 @@ static struct platform_driver macb_driver = {
 	.driver		= {
 		.name		= "macb",
 		.owner	= THIS_MODULE,
+		.of_match_table	= of_match_ptr(macb_dt_ids),
 	},
 };
 
@@ -1361,6 +1519,6 @@ module_init(macb_init);
 module_exit(macb_exit);
 
 MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("Atmel MACB Ethernet driver");
+MODULE_DESCRIPTION("Cadence MACB/GEM Ethernet driver");
 MODULE_AUTHOR("Haavard Skinnemoen (Atmel)");
 MODULE_ALIAS("platform:macb");
diff --git a/drivers/net/ethernet/cadence/macb.h b/drivers/net/ethernet/cadence/macb.h
index d3212f6db703..335e288f5314 100644
--- a/drivers/net/ethernet/cadence/macb.h
+++ b/drivers/net/ethernet/cadence/macb.h
@@ -59,6 +59,24 @@
 #define MACB_TPQ				0x00bc
 #define MACB_USRIO				0x00c0
 #define MACB_WOL				0x00c4
+#define MACB_MID				0x00fc
+
+/* GEM register offsets. */
+#define GEM_NCFGR				0x0004
+#define GEM_USRIO				0x000c
+#define GEM_DMACFG				0x0010
+#define GEM_HRB					0x0080
+#define GEM_HRT					0x0084
+#define GEM_SA1B				0x0088
+#define GEM_SA1T				0x008C
+#define GEM_OTX					0x0100
+#define GEM_DCFG1				0x0280
+#define GEM_DCFG2				0x0284
+#define GEM_DCFG3				0x0288
+#define GEM_DCFG4				0x028c
+#define GEM_DCFG5				0x0290
+#define GEM_DCFG6				0x0294
+#define GEM_DCFG7				0x0298
 
 /* Bitfields in NCR */
 #define MACB_LB_OFFSET				0
@@ -126,6 +144,21 @@
 #define MACB_IRXFCS_OFFSET			19
 #define MACB_IRXFCS_SIZE			1
 
+/* GEM specific NCFGR bitfields. */
+#define GEM_CLK_OFFSET				18
+#define GEM_CLK_SIZE				3
+#define GEM_DBW_OFFSET				21
+#define GEM_DBW_SIZE				2
+
+/* Constants for data bus width. */
+#define GEM_DBW32				0
+#define GEM_DBW64				1
+#define GEM_DBW128				2
+
+/* Bitfields in DMACFG. */
+#define GEM_RXBS_OFFSET				16
+#define GEM_RXBS_SIZE				8
+
 /* Bitfields in NSR */
 #define MACB_NSR_LINK_OFFSET			0
 #define MACB_NSR_LINK_SIZE			1
@@ -228,12 +261,30 @@
 #define MACB_WOL_MTI_OFFSET			19
 #define MACB_WOL_MTI_SIZE			1
 
+/* Bitfields in MID */
+#define MACB_IDNUM_OFFSET			16
+#define MACB_IDNUM_SIZE				16
+#define MACB_REV_OFFSET				0
+#define MACB_REV_SIZE				16
+
+/* Bitfields in DCFG1. */
+#define GEM_DBWDEF_OFFSET			25
+#define GEM_DBWDEF_SIZE				3
+
 /* Constants for CLK */
 #define MACB_CLK_DIV8				0
 #define MACB_CLK_DIV16				1
 #define MACB_CLK_DIV32				2
 #define MACB_CLK_DIV64				3
 
+/* GEM specific constants for CLK. */
+#define GEM_CLK_DIV8				0
+#define GEM_CLK_DIV16				1
+#define GEM_CLK_DIV32				2
+#define GEM_CLK_DIV48				3
+#define GEM_CLK_DIV64				4
+#define GEM_CLK_DIV96				5
+
 /* Constants for MAN register */
 #define MACB_MAN_SOF				1
 #define MACB_MAN_WRITE				1
@@ -254,11 +305,52 @@
 		    << MACB_##name##_OFFSET))		\
 	 | MACB_BF(name,value))
 
+#define GEM_BIT(name)					\
+	(1 << GEM_##name##_OFFSET)
+#define GEM_BF(name, value)				\
+	(((value) & ((1 << GEM_##name##_SIZE) - 1))	\
+	 << GEM_##name##_OFFSET)
+#define GEM_BFEXT(name, value)\
+	(((value) >> GEM_##name##_OFFSET)		\
+	 & ((1 << GEM_##name##_SIZE) - 1))
+#define GEM_BFINS(name, value, old)			\
+	(((old) & ~(((1 << GEM_##name##_SIZE) - 1)	\
+		    << GEM_##name##_OFFSET))		\
+	 | GEM_BF(name, value))
+
 /* Register access macros */
 #define macb_readl(port,reg)				\
 	__raw_readl((port)->regs + MACB_##reg)
 #define macb_writel(port,reg,value)			\
 	__raw_writel((value), (port)->regs + MACB_##reg)
+#define gem_readl(port, reg)				\
+	__raw_readl((port)->regs + GEM_##reg)
+#define gem_writel(port, reg, value)			\
+	__raw_writel((value), (port)->regs + GEM_##reg)
+
+/*
+ * Conditional GEM/MACB macros.  These perform the operation to the correct
+ * register dependent on whether the device is a GEM or a MACB.  For registers
+ * and bitfields that are common across both devices, use macb_{read,write}l
+ * to avoid the cost of the conditional.
+ */
+#define macb_or_gem_writel(__bp, __reg, __value) \
+	({ \
+		if (macb_is_gem((__bp))) \
+			gem_writel((__bp), __reg, __value); \
+		else \
+			macb_writel((__bp), __reg, __value); \
+	})
+
+#define macb_or_gem_readl(__bp, __reg) \
+	({ \
+		u32 __v; \
+		if (macb_is_gem((__bp))) \
+			__v = gem_readl((__bp), __reg); \
+		else \
+			__v = macb_readl((__bp), __reg); \
+		__v; \
+	})
 
 struct dma_desc {
 	u32	addr;
@@ -358,6 +450,54 @@ struct macb_stats {
 	u32	tx_pause_frames;
 };
 
+struct gem_stats {
+	u32	tx_octets_31_0;
+	u32	tx_octets_47_32;
+	u32	tx_frames;
+	u32	tx_broadcast_frames;
+	u32	tx_multicast_frames;
+	u32	tx_pause_frames;
+	u32	tx_64_byte_frames;
+	u32	tx_65_127_byte_frames;
+	u32	tx_128_255_byte_frames;
+	u32	tx_256_511_byte_frames;
+	u32	tx_512_1023_byte_frames;
+	u32	tx_1024_1518_byte_frames;
+	u32	tx_greater_than_1518_byte_frames;
+	u32	tx_underrun;
+	u32	tx_single_collision_frames;
+	u32	tx_multiple_collision_frames;
+	u32	tx_excessive_collisions;
+	u32	tx_late_collisions;
+	u32	tx_deferred_frames;
+	u32	tx_carrier_sense_errors;
+	u32	rx_octets_31_0;
+	u32	rx_octets_47_32;
+	u32	rx_frames;
+	u32	rx_broadcast_frames;
+	u32	rx_multicast_frames;
+	u32	rx_pause_frames;
+	u32	rx_64_byte_frames;
+	u32	rx_65_127_byte_frames;
+	u32	rx_128_255_byte_frames;
+	u32	rx_256_511_byte_frames;
+	u32	rx_512_1023_byte_frames;
+	u32	rx_1024_1518_byte_frames;
+	u32	rx_greater_than_1518_byte_frames;
+	u32	rx_undersized_frames;
+	u32	rx_oversize_frames;
+	u32	rx_jabbers;
+	u32	rx_frame_check_sequence_errors;
+	u32	rx_length_field_frame_errors;
+	u32	rx_symbol_errors;
+	u32	rx_alignment_errors;
+	u32	rx_resource_errors;
+	u32	rx_overruns;
+	u32	rx_ip_header_checksum_errors;
+	u32	rx_tcp_checksum_errors;
+	u32	rx_udp_checksum_errors;
+};
+
 struct macb {
 	void __iomem		*regs;
 
@@ -376,7 +516,10 @@ struct macb {
 	struct net_device	*dev;
 	struct napi_struct	napi;
 	struct net_device_stats	stats;
-	struct macb_stats	hw_stats;
+	union {
+		struct macb_stats	macb;
+		struct gem_stats	gem;
+	}			hw_stats;
 
 	dma_addr_t		rx_ring_dma;
 	dma_addr_t		tx_ring_dma;
@@ -389,6 +532,13 @@ struct macb {
 	unsigned int 		link;
 	unsigned int 		speed;
 	unsigned int 		duplex;
+
+	phy_interface_t		phy_interface;
 };
 
+static inline bool macb_is_gem(struct macb *bp)
+{
+	return MACB_BFEXT(IDNUM, macb_readl(bp, MID)) == 0x2;
+}
+
 #endif /* _MACB_H */
diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 6c46753aeb43..a6bcdb5cd2be 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -3080,7 +3080,7 @@ fw_exit:
 	return status;
 }
 
-static struct net_device_ops be_netdev_ops = {
+static const struct net_device_ops be_netdev_ops = {
 	.ndo_open		= be_open,
 	.ndo_stop		= be_close,
 	.ndo_start_xmit		= be_xmit,
diff --git a/drivers/net/ethernet/freescale/fec.c b/drivers/net/ethernet/freescale/fec.c
index 20c2e3f3e18a..ddcbbb34d1b9 100644
--- a/drivers/net/ethernet/freescale/fec.c
+++ b/drivers/net/ethernet/freescale/fec.c
@@ -1610,7 +1610,7 @@ fec_probe(struct platform_device *pdev)
 		ret = PTR_ERR(fep->clk);
 		goto failed_clk;
 	}
-	clk_enable(fep->clk);
+	clk_prepare_enable(fep->clk);
 
 	ret = fec_enet_init(ndev);
 	if (ret)
@@ -1633,7 +1633,7 @@ failed_register:
 	fec_enet_mii_remove(fep);
 failed_mii_init:
 failed_init:
-	clk_disable(fep->clk);
+	clk_disable_unprepare(fep->clk);
 	clk_put(fep->clk);
 failed_clk:
 	for (i = 0; i < FEC_IRQ_NUM; i++) {
@@ -1666,7 +1666,7 @@ fec_drv_remove(struct platform_device *pdev)
 		if (irq > 0)
 			free_irq(irq, ndev);
 	}
-	clk_disable(fep->clk);
+	clk_disable_unprepare(fep->clk);
 	clk_put(fep->clk);
 	iounmap(fep->hwp);
 	free_netdev(ndev);
@@ -1691,7 +1691,7 @@ fec_suspend(struct device *dev)
 		fec_stop(ndev);
 		netif_device_detach(ndev);
 	}
-	clk_disable(fep->clk);
+	clk_disable_unprepare(fep->clk);
 
 	return 0;
 }
@@ -1702,7 +1702,7 @@ fec_resume(struct device *dev)
 	struct net_device *ndev = dev_get_drvdata(dev);
 	struct fec_enet_private *fep = netdev_priv(ndev);
 
-	clk_enable(fep->clk);
+	clk_prepare_enable(fep->clk);
 	if (netif_running(ndev)) {
 		fec_restart(ndev, fep->full_duplex);
 		netif_device_attach(ndev);
diff --git a/drivers/net/ethernet/marvell/mv643xx_eth.c b/drivers/net/ethernet/marvell/mv643xx_eth.c
index e87847e32ddb..80aab4e5d695 100644
--- a/drivers/net/ethernet/marvell/mv643xx_eth.c
+++ b/drivers/net/ethernet/marvell/mv643xx_eth.c
@@ -2511,7 +2511,7 @@ static void mv643xx_eth_netpoll(struct net_device *dev)
 /* platform glue ************************************************************/
 static void
 mv643xx_eth_conf_mbus_windows(struct mv643xx_eth_shared_private *msp,
-			      struct mbus_dram_target_info *dram)
+			      const struct mbus_dram_target_info *dram)
 {
 	void __iomem *base = msp->base;
 	u32 win_enable;
@@ -2529,7 +2529,7 @@ mv643xx_eth_conf_mbus_windows(struct mv643xx_eth_shared_private *msp,
 	win_protect = 0;
 
 	for (i = 0; i < dram->num_cs; i++) {
-		struct mbus_dram_window *cs = dram->cs + i;
+		const struct mbus_dram_window *cs = dram->cs + i;
 
 		writel((cs->base & 0xffff0000) |
 			(cs->mbus_attr << 8) |
@@ -2579,6 +2579,7 @@ static int mv643xx_eth_shared_probe(struct platform_device *pdev)
 	static int mv643xx_eth_version_printed;
 	struct mv643xx_eth_shared_platform_data *pd = pdev->dev.platform_data;
 	struct mv643xx_eth_shared_private *msp;
+	const struct mbus_dram_target_info *dram;
 	struct resource *res;
 	int ret;
 
@@ -2643,8 +2644,9 @@ static int mv643xx_eth_shared_probe(struct platform_device *pdev)
 	/*
 	 * (Re-)program MBUS remapping windows if we are asked to.
 	 */
-	if (pd != NULL && pd->dram != NULL)
-		mv643xx_eth_conf_mbus_windows(msp, pd->dram);
+	dram = mv_mbus_dram_info();
+	if (dram)
+		mv643xx_eth_conf_mbus_windows(msp, dram);
 
 	/*
 	 * Detect hardware parameters.
diff --git a/drivers/net/ethernet/rdc/r6040.c b/drivers/net/ethernet/rdc/r6040.c
index 87aa43935070..cb0eca807852 100644
--- a/drivers/net/ethernet/rdc/r6040.c
+++ b/drivers/net/ethernet/rdc/r6040.c
@@ -1160,7 +1160,7 @@ static int __devinit r6040_init_one(struct pci_dev *pdev,
 	lp->dev = dev;
 
 	/* Init RDC private data */
-	lp->mcr0 = MCR0_XMTEN | MCR0;
+	lp->mcr0 = MCR0_XMTEN | MCR0_RCVEN;
 
 	/* The RDC-specific entries in the device structure. */
 	dev->netdev_ops = &r6040_netdev_ops;
diff --git a/drivers/net/ethernet/realtek/8139cp.c b/drivers/net/ethernet/realtek/8139cp.c
index cc6b391479ca..abc79076f867 100644
--- a/drivers/net/ethernet/realtek/8139cp.c
+++ b/drivers/net/ethernet/realtek/8139cp.c
@@ -563,6 +563,7 @@ rx_next:
 		if (cpr16(IntrStatus) & cp_rx_intr_mask)
 			goto rx_status_loop;
 
+		napi_gro_flush(napi);
 		spin_lock_irqsave(&cp->lock, flags);
 		__napi_complete(napi);
 		cpw16_f(IntrMask, cp_intr_mask);
diff --git a/drivers/net/ethernet/smsc/smsc911x.h b/drivers/net/ethernet/smsc/smsc911x.h
index 938ecf290813..9ad5e5d39a03 100644
--- a/drivers/net/ethernet/smsc/smsc911x.h
+++ b/drivers/net/ethernet/smsc/smsc911x.h
@@ -401,8 +401,6 @@
 #include <asm/smsc911x.h>
 #endif
 
-#ifdef CONFIG_SMSC_PHY
 #include <linux/smscphy.h>
-#endif
 
 #endif				/* __SMSC911X_H__ */
diff --git a/drivers/net/ethernet/tile/tilepro.c b/drivers/net/ethernet/tile/tilepro.c
index 6b75063988ec..d9951afb9269 100644
--- a/drivers/net/ethernet/tile/tilepro.c
+++ b/drivers/net/ethernet/tile/tilepro.c
@@ -2260,8 +2260,7 @@ static int tile_net_get_mac(struct net_device *dev)
 	return 0;
 }
 
-
-static struct net_device_ops tile_net_ops = {
+static const struct net_device_ops tile_net_ops = {
 	.ndo_open = tile_net_open,
 	.ndo_stop = tile_net_stop,
 	.ndo_start_xmit = tile_net_tx,
diff --git a/drivers/net/hyperv/Kconfig b/drivers/net/hyperv/Kconfig
new file mode 100644
index 000000000000..936968d23559
--- /dev/null
+++ b/drivers/net/hyperv/Kconfig
@@ -0,0 +1,5 @@
+config HYPERV_NET
+	tristate "Microsoft Hyper-V virtual network driver"
+	depends on HYPERV
+	help
+	  Select this option to enable the Hyper-V virtual network driver.
diff --git a/drivers/net/hyperv/Makefile b/drivers/net/hyperv/Makefile
new file mode 100644
index 000000000000..c8a66827100c
--- /dev/null
+++ b/drivers/net/hyperv/Makefile
@@ -0,0 +1,3 @@
+obj-$(CONFIG_HYPERV_NET) += hv_netvsc.o
+
+hv_netvsc-y := netvsc_drv.o netvsc.o rndis_filter.o
diff --git a/drivers/staging/hv/hyperv_net.h b/drivers/net/hyperv/hyperv_net.h
index ac1ec8405124..dec5836ae075 100644
--- a/drivers/staging/hv/hyperv_net.h
+++ b/drivers/net/hyperv/hyperv_net.h
@@ -39,9 +39,6 @@ struct xferpage_packet {
 	u32 count;
 };
 
-/* The number of pages which are enough to cover jumbo frame buffer. */
-#define NETVSC_PACKET_MAXPAGE		4
-
 /*
  * Represent netvsc packet which contains 1 RNDIS and 1 ethernet frame
  * within the RNDIS
@@ -77,8 +74,9 @@ struct hv_netvsc_packet {
 
 	u32 total_data_buflen;
 	/* Points to the send/receive buffer where the ethernet frame is */
+	void *data;
 	u32 page_buf_cnt;
-	struct hv_page_buffer page_buf[NETVSC_PACKET_MAXPAGE];
+	struct hv_page_buffer page_buf[0];
 };
 
 struct netvsc_device_info {
@@ -87,6 +85,27 @@ struct netvsc_device_info {
 	int  ring_size;
 };
 
+enum rndis_device_state {
+	RNDIS_DEV_UNINITIALIZED = 0,
+	RNDIS_DEV_INITIALIZING,
+	RNDIS_DEV_INITIALIZED,
+	RNDIS_DEV_DATAINITIALIZED,
+};
+
+struct rndis_device {
+	struct netvsc_device *net_dev;
+
+	enum rndis_device_state state;
+	bool link_state;
+	atomic_t new_req_id;
+
+	spinlock_t request_lock;
+	struct list_head req_list;
+
+	unsigned char hw_mac_adr[ETH_ALEN];
+};
+
+
 /* Interface */
 int netvsc_device_add(struct hv_device *device, void *additional_info);
 int netvsc_device_remove(struct hv_device *device);
@@ -109,11 +128,13 @@ int rndis_filter_receive(struct hv_device *dev,
 int rndis_filter_send(struct hv_device *dev,
 			struct hv_netvsc_packet *pkt);
 
+int rndis_filter_set_packet_filter(struct rndis_device *dev, u32 new_filter);
+
+
 #define NVSP_INVALID_PROTOCOL_VERSION	((u32)0xFFFFFFFF)
 
 #define NVSP_PROTOCOL_VERSION_1		2
-#define NVSP_MIN_PROTOCOL_VERSION	NVSP_PROTOCOL_VERSION_1
-#define NVSP_MAX_PROTOCOL_VERSION	NVSP_PROTOCOL_VERSION_1
+#define NVSP_PROTOCOL_VERSION_2		0x30002
 
 enum {
 	NVSP_MSG_TYPE_NONE = 0,
@@ -138,11 +159,36 @@ enum {
 	NVSP_MSG1_TYPE_SEND_RNDIS_PKT,
 	NVSP_MSG1_TYPE_SEND_RNDIS_PKT_COMPLETE,
 
-	/*
-	 * This should be set to the number of messages for the version with
-	 * the maximum number of messages.
-	 */
-	NVSP_NUM_MSG_PER_VERSION		= 9,
+	/* Version 2 messages */
+	NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF,
+	NVSP_MSG2_TYPE_SEND_CHIMNEY_DELEGATED_BUF_COMP,
+	NVSP_MSG2_TYPE_REVOKE_CHIMNEY_DELEGATED_BUF,
+
+	NVSP_MSG2_TYPE_RESUME_CHIMNEY_RX_INDICATION,
+
+	NVSP_MSG2_TYPE_TERMINATE_CHIMNEY,
+	NVSP_MSG2_TYPE_TERMINATE_CHIMNEY_COMP,
+
+	NVSP_MSG2_TYPE_INDICATE_CHIMNEY_EVENT,
+
+	NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT,
+	NVSP_MSG2_TYPE_SEND_CHIMNEY_PKT_COMP,
+
+	NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ,
+	NVSP_MSG2_TYPE_POST_CHIMNEY_RECV_REQ_COMP,
+
+	NVSP_MSG2_TYPE_ALLOC_RXBUF,
+	NVSP_MSG2_TYPE_ALLOC_RXBUF_COMP,
+
+	NVSP_MSG2_TYPE_FREE_RXBUF,
+
+	NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT,
+	NVSP_MSG2_TYPE_SEND_VMQ_RNDIS_PKT_COMP,
+
+	NVSP_MSG2_TYPE_SEND_NDIS_CONFIG,
+
+	NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE,
+	NVSP_MSG2_TYPE_ALLOC_CHIMNEY_HANDLE_COMP,
 };
 
 enum {
@@ -153,6 +199,7 @@ enum {
 	NVSP_STAT_PROTOCOL_TOO_OLD,
 	NVSP_STAT_INVALID_RNDIS_PKT,
 	NVSP_STAT_BUSY,
+	NVSP_STAT_PROTOCOL_UNSUPPORTED,
 	NVSP_STAT_MAX,
 };
 
@@ -337,9 +384,69 @@ union nvsp_1_message_uber {
 						send_rndis_pkt_complete;
 } __packed;
 
+
+/*
+ * Network VSP protocol version 2 messages:
+ */
+struct nvsp_2_vsc_capability {
+	union {
+		u64 data;
+		struct {
+			u64 vmq:1;
+			u64 chimney:1;
+			u64 sriov:1;
+			u64 ieee8021q:1;
+			u64 correlation_id:1;
+		};
+	};
+} __packed;
+
+struct nvsp_2_send_ndis_config {
+	u32 mtu;
+	u32 reserved;
+	struct nvsp_2_vsc_capability capability;
+} __packed;
+
+/* Allocate receive buffer */
+struct nvsp_2_alloc_rxbuf {
+	/* Allocation ID to match the allocation request and response */
+	u32 alloc_id;
+
+	/* Length of the VM shared memory receive buffer that needs to
+	 * be allocated
+	 */
+	u32 len;
+} __packed;
+
+/* Allocate receive buffer complete */
+struct nvsp_2_alloc_rxbuf_comp {
+	/* The NDIS_STATUS code for buffer allocation */
+	u32 status;
+
+	u32 alloc_id;
+
+	/* GPADL handle for the allocated receive buffer */
+	u32 gpadl_handle;
+
+	/* Receive buffer ID */
+	u64 recv_buf_id;
+} __packed;
+
+struct nvsp_2_free_rxbuf {
+	u64 recv_buf_id;
+} __packed;
+
+union nvsp_2_message_uber {
+	struct nvsp_2_send_ndis_config send_ndis_config;
+	struct nvsp_2_alloc_rxbuf alloc_rxbuf;
+	struct nvsp_2_alloc_rxbuf_comp alloc_rxbuf_comp;
+	struct nvsp_2_free_rxbuf free_rxbuf;
+} __packed;
+
 union nvsp_all_messages {
 	union nvsp_message_init_uber init_msg;
 	union nvsp_1_message_uber v1_msg;
+	union nvsp_2_message_uber v2_msg;
 } __packed;
 
 /* ALL Messages */
@@ -349,12 +456,9 @@ struct nvsp_message {
 } __packed;
 
 
+#define NETVSC_MTU 65536
 
-
-/* #define NVSC_MIN_PROTOCOL_VERSION		1 */
-/* #define NVSC_MAX_PROTOCOL_VERSION		1 */
-
-#define NETVSC_RECEIVE_BUFFER_SIZE		(1024*1024)	/* 1MB */
+#define NETVSC_RECEIVE_BUFFER_SIZE		(1024*1024*2)	/* 2MB */
 
 #define NETVSC_RECEIVE_BUFFER_ID		0xcafe
 
@@ -369,7 +473,10 @@ struct nvsp_message {
 struct netvsc_device {
 	struct hv_device *dev;
 
+	u32 nvsp_version;
+
 	atomic_t num_outstanding_sends;
+	bool start_remove;
 	bool destroy;
 	/*
 	 * List of free preallocated hv_netvsc_packet to represent receive
diff --git a/drivers/staging/hv/netvsc.c b/drivers/net/hyperv/netvsc.c
index b902579c7fe6..8965b45ce5a5 100644
--- a/drivers/staging/hv/netvsc.c
+++ b/drivers/net/hyperv/netvsc.c
@@ -28,6 +28,7 @@
 #include <linux/io.h>
 #include <linux/slab.h>
 #include <linux/netdevice.h>
+#include <linux/if_ether.h>
 
 #include "hyperv_net.h"
 
@@ -41,7 +42,7 @@ static struct netvsc_device *alloc_net_device(struct hv_device *device)
 	if (!net_device)
 		return NULL;
 
-
+	net_device->start_remove = false;
 	net_device->destroy = false;
 	net_device->dev = device;
 	net_device->ndev = ndev;
@@ -230,19 +231,16 @@ static int netvsc_init_recv_buf(struct hv_device *device)
 	net_device->recv_section_cnt = init_packet->msg.
 		v1_msg.send_recv_buf_complete.num_sections;
 
-	net_device->recv_section = kmalloc(net_device->recv_section_cnt
-		* sizeof(struct nvsp_1_receive_buffer_section), GFP_KERNEL);
+	net_device->recv_section = kmemdup(
+		init_packet->msg.v1_msg.send_recv_buf_complete.sections,
+		net_device->recv_section_cnt *
+		sizeof(struct nvsp_1_receive_buffer_section),
+		GFP_KERNEL);
 	if (net_device->recv_section == NULL) {
 		ret = -EINVAL;
 		goto cleanup;
 	}
 
-	memcpy(net_device->recv_section,
-		init_packet->msg.v1_msg.
-	       send_recv_buf_complete.sections,
-		net_device->recv_section_cnt *
-	       sizeof(struct nvsp_1_receive_buffer_section));
-
 	/*
 	 * For 1st release, there should only be 1 section that represents the
 	 * entire receive buffer
@@ -263,27 +261,18 @@ exit:
 }
 
 
-static int netvsc_connect_vsp(struct hv_device *device)
+/* Negotiate NVSP protocol version */
+static int negotiate_nvsp_ver(struct hv_device *device,
+			      struct netvsc_device *net_device,
+			      struct nvsp_message *init_packet,
+			      u32 nvsp_ver)
 {
 	int ret, t;
-	struct netvsc_device *net_device;
-	struct nvsp_message *init_packet;
-	int ndis_version;
-	struct net_device *ndev;
-
-	net_device = get_outbound_net_device(device);
-	if (!net_device)
-		return -ENODEV;
-	ndev = net_device->ndev;
-
-	init_packet = &net_device->channel_init_pkt;
 
 	memset(init_packet, 0, sizeof(struct nvsp_message));
 	init_packet->hdr.msg_type = NVSP_MSG_TYPE_INIT;
-	init_packet->msg.init_msg.init.min_protocol_ver =
-		NVSP_MIN_PROTOCOL_VERSION;
-	init_packet->msg.init_msg.init.max_protocol_ver =
-		NVSP_MAX_PROTOCOL_VERSION;
+	init_packet->msg.init_msg.init.min_protocol_ver = nvsp_ver;
+	init_packet->msg.init_msg.init.max_protocol_ver = nvsp_ver;
 
 	/* Send the init request */
 	ret = vmbus_sendpacket(device->channel, init_packet,
@@ -293,26 +282,62 @@ static int netvsc_connect_vsp(struct hv_device *device)
 			       VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
 
 	if (ret != 0)
-		goto cleanup;
+		return ret;
 
 	t = wait_for_completion_timeout(&net_device->channel_init_wait, 5*HZ);
 
-	if (t == 0) {
-		ret = -ETIMEDOUT;
-		goto cleanup;
-	}
+	if (t == 0)
+		return -ETIMEDOUT;
 
 	if (init_packet->msg.init_msg.init_complete.status !=
-	    NVSP_STAT_SUCCESS) {
-		ret = -EINVAL;
-		goto cleanup;
-	}
+	    NVSP_STAT_SUCCESS)
+		return -EINVAL;
 
-	if (init_packet->msg.init_msg.init_complete.
-	    negotiated_protocol_ver != NVSP_PROTOCOL_VERSION_1) {
+	if (nvsp_ver != NVSP_PROTOCOL_VERSION_2)
+		return 0;
+
+	/* NVSPv2 only: Send NDIS config */
+	memset(init_packet, 0, sizeof(struct nvsp_message));
+	init_packet->hdr.msg_type = NVSP_MSG2_TYPE_SEND_NDIS_CONFIG;
+	init_packet->msg.v2_msg.send_ndis_config.mtu = net_device->ndev->mtu;
+
+	ret = vmbus_sendpacket(device->channel, init_packet,
+				sizeof(struct nvsp_message),
+				(unsigned long)init_packet,
+				VM_PKT_DATA_INBAND, 0);
+
+	return ret;
+}
+
+static int netvsc_connect_vsp(struct hv_device *device)
+{
+	int ret;
+	struct netvsc_device *net_device;
+	struct nvsp_message *init_packet;
+	int ndis_version;
+	struct net_device *ndev;
+
+	net_device = get_outbound_net_device(device);
+	if (!net_device)
+		return -ENODEV;
+	ndev = net_device->ndev;
+
+	init_packet = &net_device->channel_init_pkt;
+
+	/* Negotiate the latest NVSP protocol supported */
+	if (negotiate_nvsp_ver(device, net_device, init_packet,
+			       NVSP_PROTOCOL_VERSION_2) == 0) {
+		net_device->nvsp_version = NVSP_PROTOCOL_VERSION_2;
+	} else if (negotiate_nvsp_ver(device, net_device, init_packet,
+				    NVSP_PROTOCOL_VERSION_1) == 0) {
+		net_device->nvsp_version = NVSP_PROTOCOL_VERSION_1;
+	} else {
 		ret = -EPROTO;
 		goto cleanup;
 	}
+
+	pr_debug("Negotiated NVSP version:%x\n", net_device->nvsp_version);
+
 	/* Send the ndis version */
 	memset(init_packet, 0, sizeof(struct nvsp_message));
 
@@ -438,6 +463,9 @@ static void netvsc_send_completion(struct hv_device *device,
 			nvsc_packet->completion.send.send_completion_ctx);
 
 		atomic_dec(&net_device->num_outstanding_sends);
+
+		if (netif_queue_stopped(ndev) && !net_device->start_remove)
+			netif_wake_queue(ndev);
 	} else {
 		netdev_err(ndev, "Unknown send completion packet type- "
 			   "%d received!!\n", nvsp_packet->hdr.msg_type);
@@ -488,11 +516,16 @@ int netvsc_send(struct hv_device *device,
 
 	}
 
-	if (ret != 0)
+	if (ret == 0) {
+		atomic_inc(&net_device->num_outstanding_sends);
+	} else if (ret == -EAGAIN) {
+		netif_stop_queue(ndev);
+		if (atomic_read(&net_device->num_outstanding_sends) < 1)
+			netif_wake_queue(ndev);
+	} else {
 		netdev_err(ndev, "Unable to send packet %p ret %d\n",
 			   packet, ret);
-	else
-		atomic_inc(&net_device->num_outstanding_sends);
+	}
 
 	return ret;
 }
@@ -598,12 +631,10 @@ static void netvsc_receive(struct hv_device *device,
 	struct vmtransfer_page_packet_header *vmxferpage_packet;
 	struct nvsp_message *nvsp_packet;
 	struct hv_netvsc_packet *netvsc_packet = NULL;
-	unsigned long start;
-	unsigned long end, end_virtual;
 	/* struct netvsc_driver *netvscDriver; */
 	struct xferpage_packet *xferpage_packet = NULL;
-	int i, j;
-	int count = 0, bytes_remain = 0;
+	int i;
+	int count = 0;
 	unsigned long flags;
 	struct net_device *ndev;
 
@@ -712,53 +743,10 @@ static void netvsc_receive(struct hv_device *device,
 		netvsc_packet->completion.recv.recv_completion_tid =
 					vmxferpage_packet->d.trans_id;
 
+		netvsc_packet->data = (void *)((unsigned long)net_device->
+			recv_buf + vmxferpage_packet->ranges[i].byte_offset);
 		netvsc_packet->total_data_buflen =
 					vmxferpage_packet->ranges[i].byte_count;
-		netvsc_packet->page_buf_cnt = 1;
-
-		netvsc_packet->page_buf[0].len =
-					vmxferpage_packet->ranges[i].byte_count;
-
-		start = virt_to_phys((void *)((unsigned long)net_device->
-		recv_buf + vmxferpage_packet->ranges[i].byte_offset));
-
-		netvsc_packet->page_buf[0].pfn = start >> PAGE_SHIFT;
-		end_virtual = (unsigned long)net_device->recv_buf
-		    + vmxferpage_packet->ranges[i].byte_offset
-		    + vmxferpage_packet->ranges[i].byte_count - 1;
-		end = virt_to_phys((void *)end_virtual);
-
-		/* Calculate the page relative offset */
-		netvsc_packet->page_buf[0].offset =
-			vmxferpage_packet->ranges[i].byte_offset &
-			(PAGE_SIZE - 1);
-		if ((end >> PAGE_SHIFT) != (start >> PAGE_SHIFT)) {
-			/* Handle frame across multiple pages: */
-			netvsc_packet->page_buf[0].len =
-				(netvsc_packet->page_buf[0].pfn <<
-				 PAGE_SHIFT)
-				+ PAGE_SIZE - start;
-			bytes_remain = netvsc_packet->total_data_buflen -
-					netvsc_packet->page_buf[0].len;
-			for (j = 1; j < NETVSC_PACKET_MAXPAGE; j++) {
-				netvsc_packet->page_buf[j].offset = 0;
-				if (bytes_remain <= PAGE_SIZE) {
-					netvsc_packet->page_buf[j].len =
-						bytes_remain;
-					bytes_remain = 0;
-				} else {
-					netvsc_packet->page_buf[j].len =
-						PAGE_SIZE;
-					bytes_remain -= PAGE_SIZE;
-				}
-				netvsc_packet->page_buf[j].pfn =
-				    virt_to_phys((void *)(end_virtual -
-						bytes_remain)) >> PAGE_SHIFT;
-				netvsc_packet->page_buf_cnt++;
-				if (bytes_remain == 0)
-					break;
-			}
-		}
 
 		/* Pass it to the upper layer */
 		rndis_filter_receive(device, netvsc_packet);
diff --git a/drivers/staging/hv/netvsc_drv.c b/drivers/net/hyperv/netvsc_drv.c
index 93b0e91cbf98..462d05f05e84 100644
--- a/drivers/staging/hv/netvsc_drv.c
+++ b/drivers/net/hyperv/netvsc_drv.c
@@ -43,24 +43,59 @@
 struct net_device_context {
 	/* point back to our device context */
 	struct hv_device *device_ctx;
-	atomic_t avail;
 	struct delayed_work dwork;
 };
 
 
-#define PACKET_PAGES_LOWATER  8
-/* Need this many pages to handle worst case fragmented packet */
-#define PACKET_PAGES_HIWATER  (MAX_SKB_FRAGS + 2)
-
 static int ring_size = 128;
 module_param(ring_size, int, S_IRUGO);
 MODULE_PARM_DESC(ring_size, "Ring buffer size (# of pages)");
 
-/* no-op so the netdev core doesn't return -EINVAL when modifying the the
- * multicast address list in SIOCADDMULTI. hv is setup to get all multicast
- * when it calls RndisFilterOnOpen() */
+struct set_multicast_work {
+	struct work_struct work;
+	struct net_device *net;
+};
+
+static void do_set_multicast(struct work_struct *w)
+{
+	struct set_multicast_work *swk =
+		container_of(w, struct set_multicast_work, work);
+	struct net_device *net = swk->net;
+
+	struct net_device_context *ndevctx = netdev_priv(net);
+	struct netvsc_device *nvdev;
+	struct rndis_device *rdev;
+
+	nvdev = hv_get_drvdata(ndevctx->device_ctx);
+	if (nvdev == NULL)
+		return;
+
+	rdev = nvdev->extension;
+	if (rdev == NULL)
+		return;
+
+	if (net->flags & IFF_PROMISC)
+		rndis_filter_set_packet_filter(rdev,
+			NDIS_PACKET_TYPE_PROMISCUOUS);
+	else
+		rndis_filter_set_packet_filter(rdev,
+			NDIS_PACKET_TYPE_BROADCAST |
+			NDIS_PACKET_TYPE_ALL_MULTICAST |
+			NDIS_PACKET_TYPE_DIRECTED);
+
+	kfree(w);
+}
+
 static void netvsc_set_multicast_list(struct net_device *net)
 {
+	struct set_multicast_work *swk =
+		kmalloc(sizeof(struct set_multicast_work), GFP_ATOMIC);
+	if (swk == NULL)
+		return;
+
+	swk->net = net;
+	INIT_WORK(&swk->work, do_set_multicast);
+	schedule_work(&swk->work);
 }
 
 static int netvsc_open(struct net_device *net)
@@ -104,18 +139,8 @@ static void netvsc_xmit_completion(void *context)
 
 	kfree(packet);
 
-	if (skb) {
-		struct net_device *net = skb->dev;
-		struct net_device_context *net_device_ctx = netdev_priv(net);
-		unsigned int num_pages = skb_shinfo(skb)->nr_frags + 2;
-
+	if (skb)
 		dev_kfree_skb_any(skb);
-
-		atomic_add(num_pages, &net_device_ctx->avail);
-		if (atomic_read(&net_device_ctx->avail) >=
-				PACKET_PAGES_HIWATER)
-			netif_wake_queue(net);
-	}
 }
 
 static int netvsc_start_xmit(struct sk_buff *skb, struct net_device *net)
@@ -123,12 +148,12 @@ static int netvsc_start_xmit(struct sk_buff *skb, struct net_device *net)
 	struct net_device_context *net_device_ctx = netdev_priv(net);
 	struct hv_netvsc_packet *packet;
 	int ret;
-	unsigned int i, num_pages;
+	unsigned int i, num_pages, npg_data;
 
-	/* Add 1 for skb->data and additional one for RNDIS */
-	num_pages = skb_shinfo(skb)->nr_frags + 1 + 1;
-	if (num_pages > atomic_read(&net_device_ctx->avail))
-		return NETDEV_TX_BUSY;
+	/* Add multipage for skb->data and additional one for RNDIS */
+	npg_data = (((unsigned long)skb->data + skb_headlen(skb) - 1)
+		>> PAGE_SHIFT) - ((unsigned long)skb->data >> PAGE_SHIFT) + 1;
+	num_pages = skb_shinfo(skb)->nr_frags + npg_data + 1;
 
 	/* Allocate a netvsc packet based on # of frags. */
 	packet = kzalloc(sizeof(struct hv_netvsc_packet) +
@@ -151,21 +176,36 @@ static int netvsc_start_xmit(struct sk_buff *skb, struct net_device *net)
 	packet->page_buf_cnt = num_pages;
 
 	/* Initialize it from the skb */
-	packet->total_data_buflen	= skb->len;
+	packet->total_data_buflen = skb->len;
 
 	/* Start filling in the page buffers starting after RNDIS buffer. */
 	packet->page_buf[1].pfn = virt_to_phys(skb->data) >> PAGE_SHIFT;
 	packet->page_buf[1].offset
 		= (unsigned long)skb->data & (PAGE_SIZE - 1);
-	packet->page_buf[1].len = skb_headlen(skb);
+	if (npg_data == 1)
+		packet->page_buf[1].len = skb_headlen(skb);
+	else
+		packet->page_buf[1].len = PAGE_SIZE
+			- packet->page_buf[1].offset;
+
+	for (i = 2; i <= npg_data; i++) {
+		packet->page_buf[i].pfn = virt_to_phys(skb->data
+			+ PAGE_SIZE * (i-1)) >> PAGE_SHIFT;
+		packet->page_buf[i].offset = 0;
+		packet->page_buf[i].len = PAGE_SIZE;
+	}
+	if (npg_data > 1)
+		packet->page_buf[npg_data].len = (((unsigned long)skb->data
+			+ skb_headlen(skb) - 1) & (PAGE_SIZE - 1)) + 1;
 
 	/* Additional fragments are after SKB data */
 	for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
 		const skb_frag_t *f = &skb_shinfo(skb)->frags[i];
 
-		packet->page_buf[i+2].pfn = page_to_pfn(skb_frag_page(f));
-		packet->page_buf[i+2].offset = f->page_offset;
-		packet->page_buf[i+2].len = skb_frag_size(f);
+		packet->page_buf[i+npg_data+1].pfn =
+			page_to_pfn(skb_frag_page(f));
+		packet->page_buf[i+npg_data+1].offset = f->page_offset;
+		packet->page_buf[i+npg_data+1].len = skb_frag_size(f);
 	}
 
 	/* Set the completion routine */
@@ -178,10 +218,6 @@ static int netvsc_start_xmit(struct sk_buff *skb, struct net_device *net)
 	if (ret == 0) {
 		net->stats.tx_bytes += skb->len;
 		net->stats.tx_packets++;
-
-		atomic_sub(num_pages, &net_device_ctx->avail);
-		if (atomic_read(&net_device_ctx->avail) < PACKET_PAGES_LOWATER)
-			netif_stop_queue(net);
 	} else {
 		/* we are shutting down or bus overloaded, just drop packet */
 		net->stats.tx_dropped++;
@@ -232,9 +268,6 @@ int netvsc_recv_callback(struct hv_device *device_obj,
 {
 	struct net_device *net = dev_get_drvdata(&device_obj->device);
 	struct sk_buff *skb;
-	void *data;
-	int i;
-	unsigned long flags;
 	struct netvsc_device *net_device;
 
 	net_device = hv_get_drvdata(device_obj);
@@ -253,27 +286,12 @@ int netvsc_recv_callback(struct hv_device *device_obj,
 		return 0;
 	}
 
-	/* for kmap_atomic */
-	local_irq_save(flags);
-
 	/*
 	 * Copy to skb. This copy is needed here since the memory pointed by
 	 * hv_netvsc_packet cannot be deallocated
 	 */
-	for (i = 0; i < packet->page_buf_cnt; i++) {
-		data = kmap_atomic(pfn_to_page(packet->page_buf[i].pfn),
-					       KM_IRQ1);
-		data = (void *)(unsigned long)data +
-				packet->page_buf[i].offset;
-
-		memcpy(skb_put(skb, packet->page_buf[i].len), data,
-		       packet->page_buf[i].len);
-
-		kunmap_atomic((void *)((unsigned long)data -
-				       packet->page_buf[i].offset), KM_IRQ1);
-	}
-
-	local_irq_restore(flags);
+	memcpy(skb_put(skb, packet->total_data_buflen), packet->data,
+		packet->total_data_buflen);
 
 	skb->protocol = eth_type_trans(skb, net);
 	skb->ip_summed = CHECKSUM_NONE;
@@ -299,6 +317,39 @@ static void netvsc_get_drvinfo(struct net_device *net,
 	strcpy(info->fw_version, "N/A");
 }
 
+static int netvsc_change_mtu(struct net_device *ndev, int mtu)
+{
+	struct net_device_context *ndevctx = netdev_priv(ndev);
+	struct hv_device *hdev =  ndevctx->device_ctx;
+	struct netvsc_device *nvdev = hv_get_drvdata(hdev);
+	struct netvsc_device_info device_info;
+	int limit = ETH_DATA_LEN;
+
+	if (nvdev == NULL || nvdev->destroy)
+		return -ENODEV;
+
+	if (nvdev->nvsp_version == NVSP_PROTOCOL_VERSION_2)
+		limit = NETVSC_MTU;
+
+	if (mtu < 68 || mtu > limit)
+		return -EINVAL;
+
+	nvdev->start_remove = true;
+	cancel_delayed_work_sync(&ndevctx->dwork);
+	netif_stop_queue(ndev);
+	rndis_filter_device_remove(hdev);
+
+	ndev->mtu = mtu;
+
+	ndevctx->device_ctx = hdev;
+	hv_set_drvdata(hdev, ndev);
+	device_info.ring_size = ring_size;
+	rndis_filter_device_add(hdev, &device_info);
+	netif_wake_queue(ndev);
+
+	return 0;
+}
+
 static const struct ethtool_ops ethtool_ops = {
 	.get_drvinfo	= netvsc_get_drvinfo,
 	.get_link	= ethtool_op_get_link,
@@ -309,7 +360,7 @@ static const struct net_device_ops device_ops = {
 	.ndo_stop =			netvsc_close,
 	.ndo_start_xmit =		netvsc_start_xmit,
 	.ndo_set_rx_mode =		netvsc_set_multicast_list,
-	.ndo_change_mtu =		eth_change_mtu,
+	.ndo_change_mtu =		netvsc_change_mtu,
 	.ndo_validate_addr =		eth_validate_addr,
 	.ndo_set_mac_address =		eth_mac_addr,
 };
@@ -351,7 +402,6 @@ static int netvsc_probe(struct hv_device *dev,
 
 	net_device_ctx = netdev_priv(net);
 	net_device_ctx->device_ctx = dev;
-	atomic_set(&net_device_ctx->avail, ring_size);
 	hv_set_drvdata(dev, net);
 	INIT_DELAYED_WORK(&net_device_ctx->dwork, netvsc_send_garp);
 
@@ -403,6 +453,8 @@ static int netvsc_remove(struct hv_device *dev)
 		return 0;
 	}
 
+	net_device->start_remove = true;
+
 	ndev_ctx = netdev_priv(net);
 	cancel_delayed_work_sync(&ndev_ctx->dwork);
 
diff --git a/drivers/staging/hv/rndis_filter.c b/drivers/net/hyperv/rndis_filter.c
index bafccb360041..da181f9a49d1 100644
--- a/drivers/staging/hv/rndis_filter.c
+++ b/drivers/net/hyperv/rndis_filter.c
@@ -30,26 +30,6 @@
 #include "hyperv_net.h"
 
 
-enum rndis_device_state {
-	RNDIS_DEV_UNINITIALIZED = 0,
-	RNDIS_DEV_INITIALIZING,
-	RNDIS_DEV_INITIALIZED,
-	RNDIS_DEV_DATAINITIALIZED,
-};
-
-struct rndis_device {
-	struct netvsc_device *net_dev;
-
-	enum rndis_device_state state;
-	bool link_state;
-	atomic_t new_req_id;
-
-	spinlock_t request_lock;
-	struct list_head req_list;
-
-	unsigned char hw_mac_adr[ETH_ALEN];
-};
-
 struct rndis_request {
 	struct list_head list_ent;
 	struct completion  wait_event;
@@ -329,7 +309,6 @@ static void rndis_filter_receive_data(struct rndis_device *dev,
 {
 	struct rndis_packet *rndis_pkt;
 	u32 data_offset;
-	int i;
 
 	rndis_pkt = &msg->msg.pkt;
 
@@ -342,17 +321,7 @@ static void rndis_filter_receive_data(struct rndis_device *dev,
 	data_offset = RNDIS_HEADER_SIZE + rndis_pkt->data_offset;
 
 	pkt->total_data_buflen -= data_offset;
-	pkt->page_buf[0].offset += data_offset;
-	pkt->page_buf[0].len -= data_offset;
-
-	/* Drop the 0th page, if rndis data go beyond page boundary */
-	if (pkt->page_buf[0].offset >= PAGE_SIZE) {
-		pkt->page_buf[1].offset = pkt->page_buf[0].offset - PAGE_SIZE;
-		pkt->page_buf[1].len -= pkt->page_buf[1].offset;
-		pkt->page_buf_cnt--;
-		for (i = 0; i < pkt->page_buf_cnt; i++)
-			pkt->page_buf[i] = pkt->page_buf[i+1];
-	}
+	pkt->data = (void *)((unsigned long)pkt->data + data_offset);
 
 	pkt->is_data_pkt = true;
 
@@ -387,11 +356,7 @@ int rndis_filter_receive(struct hv_device *dev,
 		return -ENODEV;
 	}
 
-	rndis_hdr = (struct rndis_message *)kmap_atomic(
-			pfn_to_page(pkt->page_buf[0].pfn), KM_IRQ0);
-
-	rndis_hdr = (void *)((unsigned long)rndis_hdr +
-			pkt->page_buf[0].offset);
+	rndis_hdr = pkt->data;
 
 	/* Make sure we got a valid rndis message */
 	if ((rndis_hdr->ndis_msg_type != REMOTE_NDIS_PACKET_MSG) &&
@@ -407,8 +372,6 @@ int rndis_filter_receive(struct hv_device *dev,
 			sizeof(struct rndis_message) :
 			rndis_hdr->msg_len);
 
-	kunmap_atomic(rndis_hdr - pkt->page_buf[0].offset, KM_IRQ0);
-
 	dump_rndis_message(dev, &rndis_msg);
 
 	switch (rndis_msg.ndis_msg_type) {
@@ -522,8 +485,7 @@ static int rndis_filter_query_device_link_status(struct rndis_device *dev)
 	return ret;
 }
 
-static int rndis_filter_set_packet_filter(struct rndis_device *dev,
-				      u32 new_filter)
+int rndis_filter_set_packet_filter(struct rndis_device *dev, u32 new_filter)
 {
 	struct rndis_request *request;
 	struct rndis_set_request *set;
diff --git a/drivers/net/usb/asix.c b/drivers/net/usb/asix.c
index 1ff7163bc348..d0937c4634c9 100644
--- a/drivers/net/usb/asix.c
+++ b/drivers/net/usb/asix.c
@@ -376,7 +376,7 @@ static int asix_rx_fixup(struct usbnet *dev, struct sk_buff *skb)
 
 		skb_pull(skb, (size + 1) & 0xfffe);
 
-		if (skb->len == 0)
+		if (skb->len < sizeof(header))
 			break;
 
 		head = (u8 *) skb->data;
@@ -1152,7 +1152,7 @@ static int ax88772_bind(struct usbnet *dev, struct usb_interface *intf)
 	return 0;
 }
 
-static struct ethtool_ops ax88178_ethtool_ops = {
+static const struct ethtool_ops ax88178_ethtool_ops = {
 	.get_drvinfo		= asix_get_drvinfo,
 	.get_link		= asix_get_link,
 	.get_msglevel		= usbnet_get_msglevel,
diff --git a/drivers/net/usb/cdc_ncm.c b/drivers/net/usb/cdc_ncm.c
index cb8e595c5021..3a539a9cac54 100644
--- a/drivers/net/usb/cdc_ncm.c
+++ b/drivers/net/usb/cdc_ncm.c
@@ -138,7 +138,7 @@ struct cdc_ncm_ctx {
 static void cdc_ncm_tx_timeout(unsigned long arg);
 static const struct driver_info cdc_ncm_info;
 static struct usb_driver cdc_ncm_driver;
-static struct ethtool_ops cdc_ncm_ethtool_ops;
+static const struct ethtool_ops cdc_ncm_ethtool_ops;
 
 static const struct usb_device_id cdc_devs[] = {
 	{ USB_INTERFACE_INFO(USB_CLASS_COMM,
@@ -1220,7 +1220,7 @@ static struct usb_driver cdc_ncm_driver = {
 	.supports_autosuspend = 1,
 };
 
-static struct ethtool_ops cdc_ncm_ethtool_ops = {
+static const struct ethtool_ops cdc_ncm_ethtool_ops = {
 	.get_drvinfo = cdc_ncm_get_drvinfo,
 	.get_link = usbnet_get_link,
 	.get_msglevel = usbnet_get_msglevel,
diff --git a/drivers/net/usb/ipheth.c b/drivers/net/usb/ipheth.c
index 08a4df238796..e84662db51cc 100644
--- a/drivers/net/usb/ipheth.c
+++ b/drivers/net/usb/ipheth.c
@@ -420,7 +420,7 @@ static u32 ipheth_ethtool_op_get_link(struct net_device *net)
 	return netif_carrier_ok(dev->net);
 }
 
-static struct ethtool_ops ops = {
+static const struct ethtool_ops ops = {
 	.get_link = ipheth_ethtool_op_get_link
 };
 
diff --git a/drivers/net/usb/sierra_net.c b/drivers/net/usb/sierra_net.c
index e45dfdcb8718..b59cf20c7817 100644
--- a/drivers/net/usb/sierra_net.c
+++ b/drivers/net/usb/sierra_net.c
@@ -618,7 +618,7 @@ static u32 sierra_net_get_link(struct net_device *net)
 	return sierra_net_get_private(dev)->link_up && netif_running(net);
 }
 
-static struct ethtool_ops sierra_net_ethtool_ops = {
+static const struct ethtool_ops sierra_net_ethtool_ops = {
 	.get_drvinfo = sierra_net_get_drvinfo,
 	.get_link = sierra_net_get_link,
 	.get_msglevel = usbnet_get_msglevel,
diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index 639cf8ab62ba..59effac15f36 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -1634,7 +1634,7 @@ static int __init netback_init(void)
 	int rc = 0;
 	int group;
 
-	if (!xen_pv_domain())
+	if (!xen_domain())
 		return -ENODEV;
 
 	xen_netbk_group_nr = num_online_cpus();
diff --git a/drivers/net/xen-netback/xenbus.c b/drivers/net/xen-netback/xenbus.c
index 1ce729d6af75..410018c4c528 100644
--- a/drivers/net/xen-netback/xenbus.c
+++ b/drivers/net/xen-netback/xenbus.c
@@ -474,17 +474,14 @@ static const struct xenbus_device_id netback_ids[] = {
 };
 
 
-static struct xenbus_driver netback = {
-	.name = "vif",
-	.owner = THIS_MODULE,
-	.ids = netback_ids,
+static DEFINE_XENBUS_DRIVER(netback, ,
 	.probe = netback_probe,
 	.remove = netback_remove,
 	.uevent = netback_uevent,
 	.otherend_changed = frontend_changed,
-};
+);
 
 int xenvif_xenbus_init(void)
 {
-	return xenbus_register_backend(&netback);
+	return xenbus_register_backend(&netback_driver);
 }
diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index 0a59c57864f5..fa679057630f 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -1914,7 +1914,7 @@ static void xennet_sysfs_delif(struct net_device *netdev)
 
 #endif /* CONFIG_SYSFS */
 
-static struct xenbus_device_id netfront_ids[] = {
+static const struct xenbus_device_id netfront_ids[] = {
 	{ "vif" },
 	{ "" }
 };
@@ -1941,15 +1941,12 @@ static int __devexit xennet_remove(struct xenbus_device *dev)
 	return 0;
 }
 
-static struct xenbus_driver netfront_driver = {
-	.name = "vif",
-	.owner = THIS_MODULE,
-	.ids = netfront_ids,
+static DEFINE_XENBUS_DRIVER(netfront, ,
 	.probe = netfront_probe,
 	.remove = __devexit_p(xennet_remove),
 	.resume = netfront_resume,
 	.otherend_changed = netback_changed,
-};
+);
 
 static int __init netif_init(void)
 {
diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c
index 91a375fb6ae6..ea2bd1be2640 100644
--- a/drivers/of/fdt.c
+++ b/drivers/of/fdt.c
@@ -23,6 +23,7 @@
 #include <asm/machdep.h>
 #endif /* CONFIG_PPC */
 
+#include <asm/setup.h>
 #include <asm/page.h>
 
 char *of_fdt_get_string(struct boot_param_header *blob, u32 offset)
diff --git a/drivers/parport/parport_ax88796.c b/drivers/parport/parport_ax88796.c
index 844f6137970a..7c5d86696eed 100644
--- a/drivers/parport/parport_ax88796.c
+++ b/drivers/parport/parport_ax88796.c
@@ -420,18 +420,7 @@ static struct platform_driver axdrv = {
 	.resume		= parport_ax88796_resume,
 };
 
-static int __init parport_ax88796_init(void)
-{
-	return platform_driver_register(&axdrv);
-}
-
-static void __exit parport_ax88796_exit(void)
-{
-	platform_driver_unregister(&axdrv);
-}
-
-module_init(parport_ax88796_init)
-module_exit(parport_ax88796_exit)
+module_platform_driver(axdrv);
 
 MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
 MODULE_DESCRIPTION("AX88796 Parport parallel port driver");
diff --git a/drivers/parport/parport_sunbpp.c b/drivers/parport/parport_sunbpp.c
index 910c5a26e347..9390a534a2b2 100644
--- a/drivers/parport/parport_sunbpp.c
+++ b/drivers/parport/parport_sunbpp.c
@@ -391,21 +391,10 @@ static struct platform_driver bpp_sbus_driver = {
 	.remove		= __devexit_p(bpp_remove),
 };
 
-static int __init parport_sunbpp_init(void)
-{
-	return platform_driver_register(&bpp_sbus_driver);
-}
-
-static void __exit parport_sunbpp_exit(void)
-{
-	platform_driver_unregister(&bpp_sbus_driver);
-}
+module_platform_driver(bpp_sbus_driver);
 
 MODULE_AUTHOR("Derrick J Brashear");
 MODULE_DESCRIPTION("Parport Driver for Sparc bidirectional Port");
 MODULE_SUPPORTED_DEVICE("Sparc Bidirectional Parallel Port");
 MODULE_VERSION("2.0");
 MODULE_LICENSE("GPL");
-
-module_init(parport_sunbpp_init)
-module_exit(parport_sunbpp_exit)
diff --git a/drivers/pci/ats.c b/drivers/pci/ats.c
index b0dd08e6a9da..9dd90b30f91a 100644
--- a/drivers/pci/ats.c
+++ b/drivers/pci/ats.c
@@ -175,21 +175,22 @@ int pci_enable_pri(struct pci_dev *pdev, u32 reqs)
 	u32 max_requests;
 	int pos;
 
-	pos = pci_find_ext_capability(pdev, PCI_PRI_CAP);
+	pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PRI);
 	if (!pos)
 		return -EINVAL;
 
-	pci_read_config_word(pdev, pos + PCI_PRI_CONTROL_OFF, &control);
-	pci_read_config_word(pdev, pos + PCI_PRI_STATUS_OFF,  &status);
-	if ((control & PCI_PRI_ENABLE) || !(status & PCI_PRI_STATUS_STOPPED))
+	pci_read_config_word(pdev, pos + PCI_PRI_CTRL, &control);
+	pci_read_config_word(pdev, pos + PCI_PRI_STATUS, &status);
+	if ((control & PCI_PRI_CTRL_ENABLE) ||
+	    !(status & PCI_PRI_STATUS_STOPPED))
 		return -EBUSY;
 
-	pci_read_config_dword(pdev, pos + PCI_PRI_MAX_REQ_OFF, &max_requests);
+	pci_read_config_dword(pdev, pos + PCI_PRI_MAX_REQ, &max_requests);
 	reqs = min(max_requests, reqs);
-	pci_write_config_dword(pdev, pos + PCI_PRI_ALLOC_REQ_OFF, reqs);
+	pci_write_config_dword(pdev, pos + PCI_PRI_ALLOC_REQ, reqs);
 
-	control |= PCI_PRI_ENABLE;
-	pci_write_config_word(pdev, pos + PCI_PRI_CONTROL_OFF, control);
+	control |= PCI_PRI_CTRL_ENABLE;
+	pci_write_config_word(pdev, pos + PCI_PRI_CTRL, control);
 
 	return 0;
 }
@@ -206,13 +207,13 @@ void pci_disable_pri(struct pci_dev *pdev)
 	u16 control;
 	int pos;
 
-	pos = pci_find_ext_capability(pdev, PCI_PRI_CAP);
+	pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PRI);
 	if (!pos)
 		return;
 
-	pci_read_config_word(pdev, pos + PCI_PRI_CONTROL_OFF, &control);
-	control &= ~PCI_PRI_ENABLE;
-	pci_write_config_word(pdev, pos + PCI_PRI_CONTROL_OFF, control);
+	pci_read_config_word(pdev, pos + PCI_PRI_CTRL, &control);
+	control &= ~PCI_PRI_CTRL_ENABLE;
+	pci_write_config_word(pdev, pos + PCI_PRI_CTRL, control);
 }
 EXPORT_SYMBOL_GPL(pci_disable_pri);
 
@@ -227,13 +228,13 @@ bool pci_pri_enabled(struct pci_dev *pdev)
 	u16 control;
 	int pos;
 
-	pos = pci_find_ext_capability(pdev, PCI_PRI_CAP);
+	pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PRI);
 	if (!pos)
 		return false;
 
-	pci_read_config_word(pdev, pos + PCI_PRI_CONTROL_OFF, &control);
+	pci_read_config_word(pdev, pos + PCI_PRI_CTRL, &control);
 
-	return (control & PCI_PRI_ENABLE) ? true : false;
+	return (control & PCI_PRI_CTRL_ENABLE) ? true : false;
 }
 EXPORT_SYMBOL_GPL(pci_pri_enabled);
 
@@ -249,17 +250,17 @@ int pci_reset_pri(struct pci_dev *pdev)
 	u16 control;
 	int pos;
 
-	pos = pci_find_ext_capability(pdev, PCI_PRI_CAP);
+	pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PRI);
 	if (!pos)
 		return -EINVAL;
 
-	pci_read_config_word(pdev, pos + PCI_PRI_CONTROL_OFF, &control);
-	if (control & PCI_PRI_ENABLE)
+	pci_read_config_word(pdev, pos + PCI_PRI_CTRL, &control);
+	if (control & PCI_PRI_CTRL_ENABLE)
 		return -EBUSY;
 
-	control |= PCI_PRI_RESET;
+	control |= PCI_PRI_CTRL_RESET;
 
-	pci_write_config_word(pdev, pos + PCI_PRI_CONTROL_OFF, control);
+	pci_write_config_word(pdev, pos + PCI_PRI_CTRL, control);
 
 	return 0;
 }
@@ -282,14 +283,14 @@ bool pci_pri_stopped(struct pci_dev *pdev)
 	u16 control, status;
 	int pos;
 
-	pos = pci_find_ext_capability(pdev, PCI_PRI_CAP);
+	pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PRI);
 	if (!pos)
 		return true;
 
-	pci_read_config_word(pdev, pos + PCI_PRI_CONTROL_OFF, &control);
-	pci_read_config_word(pdev, pos + PCI_PRI_STATUS_OFF,  &status);
+	pci_read_config_word(pdev, pos + PCI_PRI_CTRL, &control);
+	pci_read_config_word(pdev, pos + PCI_PRI_STATUS, &status);
 
-	if (control & PCI_PRI_ENABLE)
+	if (control & PCI_PRI_CTRL_ENABLE)
 		return false;
 
 	return (status & PCI_PRI_STATUS_STOPPED) ? true : false;
@@ -311,15 +312,15 @@ int pci_pri_status(struct pci_dev *pdev)
 	u16 status, control;
 	int pos;
 
-	pos = pci_find_ext_capability(pdev, PCI_PRI_CAP);
+	pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PRI);
 	if (!pos)
 		return -EINVAL;
 
-	pci_read_config_word(pdev, pos + PCI_PRI_CONTROL_OFF, &control);
-	pci_read_config_word(pdev, pos + PCI_PRI_STATUS_OFF,  &status);
+	pci_read_config_word(pdev, pos + PCI_PRI_CTRL, &control);
+	pci_read_config_word(pdev, pos + PCI_PRI_STATUS, &status);
 
 	/* Stopped bit is undefined when enable == 1, so clear it */
-	if (control & PCI_PRI_ENABLE)
+	if (control & PCI_PRI_CTRL_ENABLE)
 		status &= ~PCI_PRI_STATUS_STOPPED;
 
 	return status;
@@ -342,25 +343,25 @@ int pci_enable_pasid(struct pci_dev *pdev, int features)
 	u16 control, supported;
 	int pos;
 
-	pos = pci_find_ext_capability(pdev, PCI_PASID_CAP);
+	pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PASID);
 	if (!pos)
 		return -EINVAL;
 
-	pci_read_config_word(pdev, pos + PCI_PASID_CONTROL_OFF, &control);
-	pci_read_config_word(pdev, pos + PCI_PASID_CAP_OFF,     &supported);
+	pci_read_config_word(pdev, pos + PCI_PASID_CTRL, &control);
+	pci_read_config_word(pdev, pos + PCI_PASID_CAP, &supported);
 
-	if (!(supported & PCI_PASID_ENABLE))
+	if (control & PCI_PASID_CTRL_ENABLE)
 		return -EINVAL;
 
-	supported &= PCI_PASID_EXEC | PCI_PASID_PRIV;
+	supported &= PCI_PASID_CAP_EXEC | PCI_PASID_CAP_PRIV;
 
 	/* User wants to enable anything unsupported? */
 	if ((supported & features) != features)
 		return -EINVAL;
 
-	control = PCI_PASID_ENABLE | features;
+	control = PCI_PASID_CTRL_ENABLE | features;
 
-	pci_write_config_word(pdev, pos + PCI_PASID_CONTROL_OFF, control);
+	pci_write_config_word(pdev, pos + PCI_PASID_CTRL, control);
 
 	return 0;
 }
@@ -376,11 +377,11 @@ void pci_disable_pasid(struct pci_dev *pdev)
 	u16 control = 0;
 	int pos;
 
-	pos = pci_find_ext_capability(pdev, PCI_PASID_CAP);
+	pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PASID);
 	if (!pos)
 		return;
 
-	pci_write_config_word(pdev, pos + PCI_PASID_CONTROL_OFF, control);
+	pci_write_config_word(pdev, pos + PCI_PASID_CTRL, control);
 }
 EXPORT_SYMBOL_GPL(pci_disable_pasid);
 
@@ -391,22 +392,21 @@ EXPORT_SYMBOL_GPL(pci_disable_pasid);
  * Returns a negative value when no PASI capability is present.
  * Otherwise is returns a bitmask with supported features. Current
  * features reported are:
- * PCI_PASID_ENABLE - PASID capability can be enabled
- * PCI_PASID_EXEC - Execute permission supported
- * PCI_PASID_PRIV - Priviledged mode supported
+ * PCI_PASID_CAP_EXEC - Execute permission supported
+ * PCI_PASID_CAP_PRIV - Priviledged mode supported
  */
 int pci_pasid_features(struct pci_dev *pdev)
 {
 	u16 supported;
 	int pos;
 
-	pos = pci_find_ext_capability(pdev, PCI_PASID_CAP);
+	pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PASID);
 	if (!pos)
 		return -EINVAL;
 
-	pci_read_config_word(pdev, pos + PCI_PASID_CAP_OFF, &supported);
+	pci_read_config_word(pdev, pos + PCI_PASID_CAP, &supported);
 
-	supported &= PCI_PASID_ENABLE | PCI_PASID_EXEC | PCI_PASID_PRIV;
+	supported &= PCI_PASID_CAP_EXEC | PCI_PASID_CAP_PRIV;
 
 	return supported;
 }
@@ -426,11 +426,11 @@ int pci_max_pasids(struct pci_dev *pdev)
 	u16 supported;
 	int pos;
 
-	pos = pci_find_ext_capability(pdev, PCI_PASID_CAP);
+	pos = pci_find_ext_capability(pdev, PCI_EXT_CAP_ID_PASID);
 	if (!pos)
 		return -EINVAL;
 
-	pci_read_config_word(pdev, pos + PCI_PASID_CAP_OFF, &supported);
+	pci_read_config_word(pdev, pos + PCI_PASID_CAP, &supported);
 
 	supported = (supported & PASID_NUMBER_MASK) >> PASID_NUMBER_SHIFT;
 
diff --git a/drivers/pci/hotplug/pciehp.h b/drivers/pci/hotplug/pciehp.h
index 838f571027b7..9a33fdde2d16 100644
--- a/drivers/pci/hotplug/pciehp.h
+++ b/drivers/pci/hotplug/pciehp.h
@@ -45,7 +45,6 @@ extern int pciehp_poll_time;
 extern int pciehp_debug;
 extern int pciehp_force;
 extern struct workqueue_struct *pciehp_wq;
-extern struct workqueue_struct *pciehp_ordered_wq;
 
 #define dbg(format, arg...)						\
 do {									\
diff --git a/drivers/pci/hotplug/pciehp_core.c b/drivers/pci/hotplug/pciehp_core.c
index 7ac8358df8fd..b8c99d35ac97 100644
--- a/drivers/pci/hotplug/pciehp_core.c
+++ b/drivers/pci/hotplug/pciehp_core.c
@@ -43,7 +43,6 @@ int pciehp_poll_mode;
 int pciehp_poll_time;
 int pciehp_force;
 struct workqueue_struct *pciehp_wq;
-struct workqueue_struct *pciehp_ordered_wq;
 
 #define DRIVER_VERSION	"0.4"
 #define DRIVER_AUTHOR	"Dan Zink <dan.zink@compaq.com>, Greg Kroah-Hartman <greg@kroah.com>, Dely Sy <dely.l.sy@intel.com>"
@@ -345,18 +344,11 @@ static int __init pcied_init(void)
 	if (!pciehp_wq)
 		return -ENOMEM;
 
-	pciehp_ordered_wq = alloc_ordered_workqueue("pciehp_ordered", 0);
-	if (!pciehp_ordered_wq) {
-		destroy_workqueue(pciehp_wq);
-		return -ENOMEM;
-	}
-
 	pciehp_firmware_init();
 	retval = pcie_port_service_register(&hpdriver_portdrv);
  	dbg("pcie_port_service_register = %d\n", retval);
   	info(DRIVER_DESC " version: " DRIVER_VERSION "\n");
  	if (retval) {
-		destroy_workqueue(pciehp_ordered_wq);
 		destroy_workqueue(pciehp_wq);
 		dbg("Failure to register service\n");
 	}
@@ -366,9 +358,8 @@ static int __init pcied_init(void)
 static void __exit pcied_cleanup(void)
 {
 	dbg("unload_pciehpd()\n");
-	destroy_workqueue(pciehp_ordered_wq);
-	destroy_workqueue(pciehp_wq);
 	pcie_port_service_unregister(&hpdriver_portdrv);
+	destroy_workqueue(pciehp_wq);
 	info(DRIVER_DESC " version: " DRIVER_VERSION " unloaded\n");
 }
 
diff --git a/drivers/pci/hotplug/pciehp_ctrl.c b/drivers/pci/hotplug/pciehp_ctrl.c
index 085dbb5fc168..27f44295a657 100644
--- a/drivers/pci/hotplug/pciehp_ctrl.c
+++ b/drivers/pci/hotplug/pciehp_ctrl.c
@@ -344,7 +344,7 @@ void pciehp_queue_pushbutton_work(struct work_struct *work)
 		kfree(info);
 		goto out;
 	}
-	queue_work(pciehp_ordered_wq, &info->work);
+	queue_work(pciehp_wq, &info->work);
  out:
 	mutex_unlock(&p_slot->lock);
 }
@@ -439,7 +439,7 @@ static void handle_surprise_event(struct slot *p_slot)
 	else
 		p_slot->state = POWERON_STATE;
 
-	queue_work(pciehp_ordered_wq, &info->work);
+	queue_work(pciehp_wq, &info->work);
 }
 
 static void interrupt_event_handler(struct work_struct *work)
diff --git a/drivers/pci/hotplug/pciehp_hpc.c b/drivers/pci/hotplug/pciehp_hpc.c
index 7b1414810ae3..bcdbb1643621 100644
--- a/drivers/pci/hotplug/pciehp_hpc.c
+++ b/drivers/pci/hotplug/pciehp_hpc.c
@@ -806,7 +806,6 @@ static void pcie_cleanup_slot(struct controller *ctrl)
 	struct slot *slot = ctrl->slot;
 	cancel_delayed_work(&slot->work);
 	flush_workqueue(pciehp_wq);
-	flush_workqueue(pciehp_ordered_wq);
 	kfree(slot);
 }
 
diff --git a/drivers/pci/msi.c b/drivers/pci/msi.c
index 0e6d04d7ba4f..337e16ab4a92 100644
--- a/drivers/pci/msi.c
+++ b/drivers/pci/msi.c
@@ -323,6 +323,8 @@ static void free_msi_irqs(struct pci_dev *dev)
 			if (list_is_last(&entry->list, &dev->msi_list))
 				iounmap(entry->mask_base);
 		}
+		kobject_del(&entry->kobj);
+		kobject_put(&entry->kobj);
 		list_del(&entry->list);
 		kfree(entry);
 	}
@@ -403,6 +405,98 @@ void pci_restore_msi_state(struct pci_dev *dev)
 }
 EXPORT_SYMBOL_GPL(pci_restore_msi_state);
 
+
+#define to_msi_attr(obj) container_of(obj, struct msi_attribute, attr)
+#define to_msi_desc(obj) container_of(obj, struct msi_desc, kobj)
+
+struct msi_attribute {
+	struct attribute        attr;
+	ssize_t (*show)(struct msi_desc *entry, struct msi_attribute *attr,
+			char *buf);
+	ssize_t (*store)(struct msi_desc *entry, struct msi_attribute *attr,
+			 const char *buf, size_t count);
+};
+
+static ssize_t show_msi_mode(struct msi_desc *entry, struct msi_attribute *atr,
+			     char *buf)
+{
+	return sprintf(buf, "%s\n", entry->msi_attrib.is_msix ? "msix" : "msi");
+}
+
+static ssize_t msi_irq_attr_show(struct kobject *kobj,
+				 struct attribute *attr, char *buf)
+{
+	struct msi_attribute *attribute = to_msi_attr(attr);
+	struct msi_desc *entry = to_msi_desc(kobj);
+
+	if (!attribute->show)
+		return -EIO;
+
+	return attribute->show(entry, attribute, buf);
+}
+
+static const struct sysfs_ops msi_irq_sysfs_ops = {
+	.show = msi_irq_attr_show,
+};
+
+static struct msi_attribute mode_attribute =
+	__ATTR(mode, S_IRUGO, show_msi_mode, NULL);
+
+
+struct attribute *msi_irq_default_attrs[] = {
+	&mode_attribute.attr,
+	NULL
+};
+
+void msi_kobj_release(struct kobject *kobj)
+{
+	struct msi_desc *entry = to_msi_desc(kobj);
+
+	pci_dev_put(entry->dev);
+}
+
+static struct kobj_type msi_irq_ktype = {
+	.release = msi_kobj_release,
+	.sysfs_ops = &msi_irq_sysfs_ops,
+	.default_attrs = msi_irq_default_attrs,
+};
+
+static int populate_msi_sysfs(struct pci_dev *pdev)
+{
+	struct msi_desc *entry;
+	struct kobject *kobj;
+	int ret;
+	int count = 0;
+
+	pdev->msi_kset = kset_create_and_add("msi_irqs", NULL, &pdev->dev.kobj);
+	if (!pdev->msi_kset)
+		return -ENOMEM;
+
+	list_for_each_entry(entry, &pdev->msi_list, list) {
+		kobj = &entry->kobj;
+		kobj->kset = pdev->msi_kset;
+		pci_dev_get(pdev);
+		ret = kobject_init_and_add(kobj, &msi_irq_ktype, NULL,
+				     "%u", entry->irq);
+		if (ret)
+			goto out_unroll;
+
+		count++;
+	}
+
+	return 0;
+
+out_unroll:
+	list_for_each_entry(entry, &pdev->msi_list, list) {
+		if (!count)
+			break;
+		kobject_del(&entry->kobj);
+		kobject_put(&entry->kobj);
+		count--;
+	}
+	return ret;
+}
+
 /**
  * msi_capability_init - configure device's MSI capability structure
  * @dev: pointer to the pci_dev data structure of MSI device function
@@ -454,6 +548,13 @@ static int msi_capability_init(struct pci_dev *dev, int nvec)
 		return ret;
 	}
 
+	ret = populate_msi_sysfs(dev);
+	if (ret) {
+		msi_mask_irq(entry, mask, ~mask);
+		free_msi_irqs(dev);
+		return ret;
+	}
+
 	/* Set MSI enabled bits	 */
 	pci_intx_for_msi(dev, 0);
 	msi_set_enable(dev, pos, 1);
@@ -574,6 +675,12 @@ static int msix_capability_init(struct pci_dev *dev,
 
 	msix_program_entries(dev, entries);
 
+	ret = populate_msi_sysfs(dev);
+	if (ret) {
+		ret = 0;
+		goto error;
+	}
+
 	/* Set MSI-X enabled bits and unmask the function */
 	pci_intx_for_msi(dev, 0);
 	dev->msix_enabled = 1;
@@ -732,6 +839,8 @@ void pci_disable_msi(struct pci_dev *dev)
 
 	pci_msi_shutdown(dev);
 	free_msi_irqs(dev);
+	kset_unregister(dev->msi_kset);
+	dev->msi_kset = NULL;
 }
 EXPORT_SYMBOL(pci_disable_msi);
 
@@ -830,6 +939,8 @@ void pci_disable_msix(struct pci_dev *dev)
 
 	pci_msix_shutdown(dev);
 	free_msi_irqs(dev);
+	kset_unregister(dev->msi_kset);
+	dev->msi_kset = NULL;
 }
 EXPORT_SYMBOL(pci_disable_msix);
 
@@ -870,5 +981,15 @@ EXPORT_SYMBOL(pci_msi_enabled);
 
 void pci_msi_init_pci_dev(struct pci_dev *dev)
 {
+	int pos;
 	INIT_LIST_HEAD(&dev->msi_list);
+
+	/* Disable the msi hardware to avoid screaming interrupts
+	 * during boot.  This is the power on reset default so
+	 * usually this should be a noop.
+	 */
+	pos = pci_find_capability(dev, PCI_CAP_ID_MSI);
+	if (pos)
+		msi_set_enable(dev, pos, 0);
+	msix_set_enable(dev, 0);
 }
diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c
index 4ecb6408b0d6..060fd22a1103 100644
--- a/drivers/pci/pci-acpi.c
+++ b/drivers/pci/pci-acpi.c
@@ -45,16 +45,20 @@ static void pci_acpi_wake_dev(acpi_handle handle, u32 event, void *context)
 {
 	struct pci_dev *pci_dev = context;
 
-	if (event == ACPI_NOTIFY_DEVICE_WAKE && pci_dev) {
+	if (event != ACPI_NOTIFY_DEVICE_WAKE || !pci_dev)
+		return;
+
+	if (!pci_dev->pm_cap || !pci_dev->pme_support
+	     || pci_check_pme_status(pci_dev)) {
 		if (pci_dev->pme_poll)
 			pci_dev->pme_poll = false;
 
 		pci_wakeup_event(pci_dev);
-		pci_check_pme_status(pci_dev);
 		pm_runtime_resume(&pci_dev->dev);
-		if (pci_dev->subordinate)
-			pci_pme_wakeup_bus(pci_dev->subordinate);
 	}
+
+	if (pci_dev->subordinate)
+		pci_pme_wakeup_bus(pci_dev->subordinate);
 }
 
 /**
@@ -395,7 +399,6 @@ static int __init acpi_pci_init(void)
 
 	if (acpi_gbl_FADT.boot_flags & ACPI_FADT_NO_ASPM) {
 		printk(KERN_INFO"ACPI FADT declares the system doesn't support PCIe ASPM, so disable it\n");
-		pcie_clear_aspm();
 		pcie_no_aspm();
 	}
 
diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c
index cbfbab18be91..1cfbf228fbb1 100644
--- a/drivers/pci/pcie/aspm.c
+++ b/drivers/pci/pcie/aspm.c
@@ -68,7 +68,7 @@ struct pcie_link_state {
 	struct aspm_latency acceptable[8];
 };
 
-static int aspm_disabled, aspm_force, aspm_clear_state;
+static int aspm_disabled, aspm_force;
 static bool aspm_support_enabled = true;
 static DEFINE_MUTEX(aspm_lock);
 static LIST_HEAD(link_list);
@@ -500,9 +500,6 @@ static int pcie_aspm_sanity_check(struct pci_dev *pdev)
 	int pos;
 	u32 reg32;
 
-	if (aspm_clear_state)
-		return -EINVAL;
-
 	/*
 	 * Some functions in a slot might not all be PCIe functions,
 	 * very strange. Disable ASPM for the whole slot
@@ -574,9 +571,6 @@ void pcie_aspm_init_link_state(struct pci_dev *pdev)
 	    pdev->pcie_type != PCI_EXP_TYPE_DOWNSTREAM)
 		return;
 
-	if (aspm_disabled && !aspm_clear_state)
-		return;
-
 	/* VIA has a strange chipset, root port is under a bridge */
 	if (pdev->pcie_type == PCI_EXP_TYPE_ROOT_PORT &&
 	    pdev->bus->self)
@@ -608,7 +602,7 @@ void pcie_aspm_init_link_state(struct pci_dev *pdev)
 	 * the BIOS's expectation, we'll do so once pci_enable_device() is
 	 * called.
 	 */
-	if (aspm_policy != POLICY_POWERSAVE || aspm_clear_state) {
+	if (aspm_policy != POLICY_POWERSAVE) {
 		pcie_config_aspm_path(link);
 		pcie_set_clkpm(link, policy_to_clkpm_state(link));
 	}
@@ -649,8 +643,7 @@ void pcie_aspm_exit_link_state(struct pci_dev *pdev)
 	struct pci_dev *parent = pdev->bus->self;
 	struct pcie_link_state *link, *root, *parent_link;
 
-	if ((aspm_disabled && !aspm_clear_state) || !pci_is_pcie(pdev) ||
-	    !parent || !parent->link_state)
+	if (!pci_is_pcie(pdev) || !parent || !parent->link_state)
 		return;
 	if ((parent->pcie_type != PCI_EXP_TYPE_ROOT_PORT) &&
 	    (parent->pcie_type != PCI_EXP_TYPE_DOWNSTREAM))
@@ -734,13 +727,18 @@ void pcie_aspm_powersave_config_link(struct pci_dev *pdev)
  * pci_disable_link_state - disable pci device's link state, so the link will
  * never enter specific states
  */
-static void __pci_disable_link_state(struct pci_dev *pdev, int state, bool sem)
+static void __pci_disable_link_state(struct pci_dev *pdev, int state, bool sem,
+				     bool force)
 {
 	struct pci_dev *parent = pdev->bus->self;
 	struct pcie_link_state *link;
 
-	if (aspm_disabled || !pci_is_pcie(pdev))
+	if (aspm_disabled && !force)
+		return;
+
+	if (!pci_is_pcie(pdev))
 		return;
+
 	if (pdev->pcie_type == PCI_EXP_TYPE_ROOT_PORT ||
 	    pdev->pcie_type == PCI_EXP_TYPE_DOWNSTREAM)
 		parent = pdev;
@@ -768,16 +766,31 @@ static void __pci_disable_link_state(struct pci_dev *pdev, int state, bool sem)
 
 void pci_disable_link_state_locked(struct pci_dev *pdev, int state)
 {
-	__pci_disable_link_state(pdev, state, false);
+	__pci_disable_link_state(pdev, state, false, false);
 }
 EXPORT_SYMBOL(pci_disable_link_state_locked);
 
 void pci_disable_link_state(struct pci_dev *pdev, int state)
 {
-	__pci_disable_link_state(pdev, state, true);
+	__pci_disable_link_state(pdev, state, true, false);
 }
 EXPORT_SYMBOL(pci_disable_link_state);
 
+void pcie_clear_aspm(struct pci_bus *bus)
+{
+	struct pci_dev *child;
+
+	/*
+	 * Clear any ASPM setup that the firmware has carried out on this bus
+	 */
+	list_for_each_entry(child, &bus->devices, bus_list) {
+		__pci_disable_link_state(child, PCIE_LINK_STATE_L0S |
+					 PCIE_LINK_STATE_L1 |
+					 PCIE_LINK_STATE_CLKPM,
+					 false, true);
+	}
+}
+
 static int pcie_aspm_set_policy(const char *val, struct kernel_param *kp)
 {
 	int i;
@@ -935,6 +948,7 @@ void pcie_aspm_remove_sysfs_dev_files(struct pci_dev *pdev)
 static int __init pcie_aspm_disable(char *str)
 {
 	if (!strcmp(str, "off")) {
+		aspm_policy = POLICY_DEFAULT;
 		aspm_disabled = 1;
 		aspm_support_enabled = false;
 		printk(KERN_INFO "PCIe ASPM is disabled\n");
@@ -947,16 +961,18 @@ static int __init pcie_aspm_disable(char *str)
 
 __setup("pcie_aspm=", pcie_aspm_disable);
 
-void pcie_clear_aspm(void)
-{
-	if (!aspm_force)
-		aspm_clear_state = 1;
-}
-
 void pcie_no_aspm(void)
 {
-	if (!aspm_force)
+	/*
+	 * Disabling ASPM is intended to prevent the kernel from modifying
+	 * existing hardware state, not to clear existing state. To that end:
+	 * (a) set policy to POLICY_DEFAULT in order to avoid changing state
+	 * (b) prevent userspace from changing policy
+	 */
+	if (!aspm_force) {
+		aspm_policy = POLICY_DEFAULT;
 		aspm_disabled = 1;
+	}
 }
 
 /**
diff --git a/drivers/pci/xen-pcifront.c b/drivers/pci/xen-pcifront.c
index 90832a955991..7cf3d2fcf56a 100644
--- a/drivers/pci/xen-pcifront.c
+++ b/drivers/pci/xen-pcifront.c
@@ -1126,14 +1126,11 @@ static const struct xenbus_device_id xenpci_ids[] = {
 	{""},
 };
 
-static struct xenbus_driver xenbus_pcifront_driver = {
-	.name			= "pcifront",
-	.owner			= THIS_MODULE,
-	.ids			= xenpci_ids,
+static DEFINE_XENBUS_DRIVER(xenpci, "pcifront",
 	.probe			= pcifront_xenbus_probe,
 	.remove			= pcifront_xenbus_remove,
 	.otherend_changed	= pcifront_backend_changed,
-};
+);
 
 static int __init pcifront_init(void)
 {
@@ -1142,12 +1139,12 @@ static int __init pcifront_init(void)
 
 	pci_frontend_registrar(1 /* enable */);
 
-	return xenbus_register_frontend(&xenbus_pcifront_driver);
+	return xenbus_register_frontend(&xenpci_driver);
 }
 
 static void __exit pcifront_cleanup(void)
 {
-	xenbus_unregister_driver(&xenbus_pcifront_driver);
+	xenbus_unregister_driver(&xenpci_driver);
 	pci_frontend_registrar(0 /* disable */);
 }
 module_init(pcifront_init);
diff --git a/drivers/pcmcia/pxa2xx_cm_x255.c b/drivers/pcmcia/pxa2xx_cm_x255.c
index 0b4f946cf13a..31ab6ddf52c9 100644
--- a/drivers/pcmcia/pxa2xx_cm_x255.c
+++ b/drivers/pcmcia/pxa2xx_cm_x255.c
@@ -16,8 +16,6 @@
 #include <linux/gpio.h>
 #include <linux/export.h>
 
-#include <asm/mach-types.h>
-
 #include "soc_common.h"
 
 #define GPIO_PCMCIA_SKTSEL	(54)
@@ -27,15 +25,15 @@
 #define GPIO_PCMCIA_S1_RDYINT	(8)
 #define GPIO_PCMCIA_RESET	(9)
 
-#define PCMCIA_S0_CD_VALID	IRQ_GPIO(GPIO_PCMCIA_S0_CD_VALID)
-#define PCMCIA_S1_CD_VALID	IRQ_GPIO(GPIO_PCMCIA_S1_CD_VALID)
-#define PCMCIA_S0_RDYINT	IRQ_GPIO(GPIO_PCMCIA_S0_RDYINT)
-#define PCMCIA_S1_RDYINT	IRQ_GPIO(GPIO_PCMCIA_S1_RDYINT)
+#define PCMCIA_S0_CD_VALID	gpio_to_irq(GPIO_PCMCIA_S0_CD_VALID)
+#define PCMCIA_S1_CD_VALID	gpio_to_irq(GPIO_PCMCIA_S1_CD_VALID)
+#define PCMCIA_S0_RDYINT	gpio_to_irq(GPIO_PCMCIA_S0_RDYINT)
+#define PCMCIA_S1_RDYINT	gpio_to_irq(GPIO_PCMCIA_S1_RDYINT)
 
 
 static struct pcmcia_irqs irqs[] = {
-	{ 0, PCMCIA_S0_CD_VALID, "PCMCIA0 CD" },
-	{ 1, PCMCIA_S1_CD_VALID, "PCMCIA1 CD" },
+	{ .sock = 0, .str = "PCMCIA0 CD" },
+	{ .sock = 1, .str = "PCMCIA1 CD" },
 };
 
 static int cmx255_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
@@ -46,6 +44,8 @@ static int cmx255_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
 	gpio_direction_output(GPIO_PCMCIA_RESET, 0);
 
 	skt->socket.pci_irq = skt->nr == 0 ? PCMCIA_S0_RDYINT : PCMCIA_S1_RDYINT;
+	irqs[0].irq = PCMCIA_S0_CD_VALID;
+	irqs[1].irq = PCMCIA_S1_CD_VALID;
 	ret = soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs));
 	if (!ret)
 		gpio_free(GPIO_PCMCIA_RESET);
diff --git a/drivers/pcmcia/pxa2xx_cm_x270.c b/drivers/pcmcia/pxa2xx_cm_x270.c
index 923f315926ef..3dc7621a0767 100644
--- a/drivers/pcmcia/pxa2xx_cm_x270.c
+++ b/drivers/pcmcia/pxa2xx_cm_x270.c
@@ -16,20 +16,18 @@
 #include <linux/gpio.h>
 #include <linux/export.h>
 
-#include <asm/mach-types.h>
-
 #include "soc_common.h"
 
 #define GPIO_PCMCIA_S0_CD_VALID	(84)
 #define GPIO_PCMCIA_S0_RDYINT	(82)
 #define GPIO_PCMCIA_RESET	(53)
 
-#define PCMCIA_S0_CD_VALID	IRQ_GPIO(GPIO_PCMCIA_S0_CD_VALID)
-#define PCMCIA_S0_RDYINT	IRQ_GPIO(GPIO_PCMCIA_S0_RDYINT)
+#define PCMCIA_S0_CD_VALID	gpio_to_irq(GPIO_PCMCIA_S0_CD_VALID)
+#define PCMCIA_S0_RDYINT	gpio_to_irq(GPIO_PCMCIA_S0_RDYINT)
 
 
 static struct pcmcia_irqs irqs[] = {
-	{ 0, PCMCIA_S0_CD_VALID, "PCMCIA0 CD" },
+	{ .sock = 0, .str = "PCMCIA0 CD" },
 };
 
 static int cmx270_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
@@ -40,6 +38,7 @@ static int cmx270_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
 	gpio_direction_output(GPIO_PCMCIA_RESET, 0);
 
 	skt->socket.pci_irq = PCMCIA_S0_RDYINT;
+	irqs[0].irq = PCMCIA_S0_CD_VALID;
 	ret = soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs));
 	if (!ret)
 		gpio_free(GPIO_PCMCIA_RESET);
diff --git a/drivers/pcmcia/pxa2xx_e740.c b/drivers/pcmcia/pxa2xx_e740.c
index 8bfbd4dca131..17cd2ce7428f 100644
--- a/drivers/pcmcia/pxa2xx_e740.c
+++ b/drivers/pcmcia/pxa2xx_e740.c
@@ -26,20 +26,23 @@
 static struct pcmcia_irqs cd_irqs[] = {
 	{
 		.sock = 0,
-		.irq  = IRQ_GPIO(GPIO_E740_PCMCIA_CD0),
 		.str  = "CF card detect"
 	},
 	{
 		.sock = 1,
-		.irq  = IRQ_GPIO(GPIO_E740_PCMCIA_CD1),
 		.str  = "Wifi switch"
 	},
 };
 
 static int e740_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
 {
-	skt->socket.pci_irq = skt->nr == 0 ? IRQ_GPIO(GPIO_E740_PCMCIA_RDY0) :
-				IRQ_GPIO(GPIO_E740_PCMCIA_RDY1);
+	if (skt->nr == 0)
+		skt->socket.pci_irq = gpio_to_irq(GPIO_E740_PCMCIA_RDY0);
+	else
+		skt->socket.pci_irq = gpio_to_irq(GPIO_E740_PCMCIA_RDY1);
+
+	cd_irqs[0].irq = gpio_to_irq(GPIO_E740_PCMCIA_CD0);
+	cd_irqs[1].irq = gpio_to_irq(GPIO_E740_PCMCIA_CD1);
 
 	return soc_pcmcia_request_irqs(skt, &cd_irqs[skt->nr], 1);
 }
diff --git a/drivers/pcmcia/pxa2xx_palmld.c b/drivers/pcmcia/pxa2xx_palmld.c
index d589ad1dcd4c..6a8e011a8c13 100644
--- a/drivers/pcmcia/pxa2xx_palmld.c
+++ b/drivers/pcmcia/pxa2xx_palmld.c
@@ -33,7 +33,7 @@ static int palmld_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
 	ret = gpio_request_array(palmld_pcmcia_gpios,
 				ARRAY_SIZE(palmld_pcmcia_gpios));
 
-	skt->socket.pci_irq = IRQ_GPIO(GPIO_NR_PALMLD_PCMCIA_READY);
+	skt->socket.pci_irq = gpio_to_irq(GPIO_NR_PALMLD_PCMCIA_READY);
 
 	return ret;
 }
diff --git a/drivers/pcmcia/pxa2xx_palmtc.c b/drivers/pcmcia/pxa2xx_palmtc.c
index 9c6a04b2f71b..9e38de769ba3 100644
--- a/drivers/pcmcia/pxa2xx_palmtc.c
+++ b/drivers/pcmcia/pxa2xx_palmtc.c
@@ -37,7 +37,7 @@ static int palmtc_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
 	ret = gpio_request_array(palmtc_pcmcia_gpios,
 				ARRAY_SIZE(palmtc_pcmcia_gpios));
 
-	skt->socket.pci_irq = IRQ_GPIO(GPIO_NR_PALMTC_PCMCIA_READY);
+	skt->socket.pci_irq = gpio_to_irq(GPIO_NR_PALMTC_PCMCIA_READY);
 
 	return ret;
 }
diff --git a/drivers/pcmcia/pxa2xx_stargate2.c b/drivers/pcmcia/pxa2xx_stargate2.c
index 939622251dfb..6c2366b74a35 100644
--- a/drivers/pcmcia/pxa2xx_stargate2.c
+++ b/drivers/pcmcia/pxa2xx_stargate2.c
@@ -34,7 +34,7 @@
 #define SG2_S0_GPIO_READY	81
 
 static struct pcmcia_irqs irqs[] = {
-	{ 0, IRQ_GPIO(SG2_S0_GPIO_DETECT), "PCMCIA0 CD" },
+	{.sock = 0, .str = "PCMCIA0 CD" },
 };
 
 static struct gpio sg2_pcmcia_gpios[] = {
@@ -44,7 +44,9 @@ static struct gpio sg2_pcmcia_gpios[] = {
 
 static int sg2_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
 {
-	skt->socket.pci_irq = IRQ_GPIO(SG2_S0_GPIO_READY);
+	skt->socket.pci_irq = gpio_to_irq(SG2_S0_GPIO_READY);
+	irqs[0].irq = gpio_to_irq(SG2_S0_GPIO_DETECT);
+
 	return soc_pcmcia_request_irqs(skt, irqs, ARRAY_SIZE(irqs));
 }
 
diff --git a/drivers/pcmcia/pxa2xx_trizeps4.c b/drivers/pcmcia/pxa2xx_trizeps4.c
index 57ddb969d888..7c33f898135a 100644
--- a/drivers/pcmcia/pxa2xx_trizeps4.c
+++ b/drivers/pcmcia/pxa2xx_trizeps4.c
@@ -30,7 +30,7 @@
 extern void board_pcmcia_power(int power);
 
 static struct pcmcia_irqs irqs[] = {
-	{ 0, IRQ_GPIO(GPIO_PCD), "cs0_cd" }
+	{ .sock = 0, .str = "cs0_cd" }
 	/* on other baseboards we can have more inputs */
 };
 
@@ -53,7 +53,8 @@ static int trizeps_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
 			gpio_free(GPIO_PRDY);
 			return -EINVAL;
 		}
-		skt->socket.pci_irq = IRQ_GPIO(GPIO_PRDY);
+		skt->socket.pci_irq = gpio_to_irq(GPIO_PRDY);
+		irqs[0].irq = gpio_to_irq(GPIO_PCD);
 		break;
 	default:
 		break;
diff --git a/drivers/pcmcia/pxa2xx_vpac270.c b/drivers/pcmcia/pxa2xx_vpac270.c
index 66ab92cf3105..61b17d235dbe 100644
--- a/drivers/pcmcia/pxa2xx_vpac270.c
+++ b/drivers/pcmcia/pxa2xx_vpac270.c
@@ -38,12 +38,10 @@ static struct gpio vpac270_cf_gpios[] = {
 static struct pcmcia_irqs cd_irqs[] = {
 	{
 		.sock = 0,
-		.irq  = IRQ_GPIO(GPIO84_VPAC270_PCMCIA_CD),
 		.str  = "PCMCIA CD"
 	},
 	{
 		.sock = 1,
-		.irq  = IRQ_GPIO(GPIO17_VPAC270_CF_CD),
 		.str  = "CF CD"
 	},
 };
@@ -57,6 +55,7 @@ static int vpac270_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
 				ARRAY_SIZE(vpac270_pcmcia_gpios));
 
 		skt->socket.pci_irq = gpio_to_irq(GPIO35_VPAC270_PCMCIA_RDY);
+		cd_irqs[0].irq = gpio_to_irq(GPIO84_VPAC270_PCMCIA_CD);
 
 		if (!ret)
 			ret = soc_pcmcia_request_irqs(skt, &cd_irqs[0], 1);
@@ -65,6 +64,7 @@ static int vpac270_pcmcia_hw_init(struct soc_pcmcia_socket *skt)
 				ARRAY_SIZE(vpac270_cf_gpios));
 
 		skt->socket.pci_irq = gpio_to_irq(GPIO12_VPAC270_CF_RDY);
+		cd_irqs[1].irq = gpio_to_irq(GPIO17_VPAC270_CF_CD);
 
 		if (!ret)
 			ret = soc_pcmcia_request_irqs(skt, &cd_irqs[1], 1);
diff --git a/drivers/pinctrl/Kconfig b/drivers/pinctrl/Kconfig
index e17e2f8001d2..afaf88558125 100644
--- a/drivers/pinctrl/Kconfig
+++ b/drivers/pinctrl/Kconfig
@@ -12,7 +12,10 @@ menu "Pin controllers"
 	depends on PINCTRL
 
 config PINMUX
-	bool "Support pinmux controllers"
+	bool "Support pin multiplexing controllers"
+
+config PINCONF
+	bool "Support pin configuration controllers"
 
 config DEBUG_PINCTRL
 	bool "Debug PINCTRL calls"
@@ -20,16 +23,25 @@ config DEBUG_PINCTRL
 	help
 	  Say Y here to add some extra checks and diagnostics to PINCTRL calls.
 
-config PINMUX_SIRF
-	bool "CSR SiRFprimaII pinmux driver"
+config PINCTRL_SIRF
+	bool "CSR SiRFprimaII pin controller driver"
 	depends on ARCH_PRIMA2
 	select PINMUX
 
-config PINMUX_U300
-	bool "U300 pinmux driver"
+config PINCTRL_U300
+	bool "U300 pin controller driver"
 	depends on ARCH_U300
 	select PINMUX
 
+config PINCTRL_COH901
+	bool "ST-Ericsson U300 COH 901 335/571 GPIO"
+	depends on GPIOLIB && ARCH_U300 && PINMUX_U300
+	help
+	  Say yes here to support GPIO interface on ST-Ericsson U300.
+	  The names of the two IP block variants supported are
+	  COH 901 335 and COH 901 571/3. They contain 3, 5 or 7
+	  ports of 8 GPIO pins each.
+
 endmenu
 
 endif
diff --git a/drivers/pinctrl/Makefile b/drivers/pinctrl/Makefile
index bdc548a6b7e9..827601cc68f6 100644
--- a/drivers/pinctrl/Makefile
+++ b/drivers/pinctrl/Makefile
@@ -1,8 +1,10 @@
 # generic pinmux support
 
-ccflags-$(CONFIG_DEBUG_PINMUX)	+= -DDEBUG
+ccflags-$(CONFIG_DEBUG_PINCTRL)	+= -DDEBUG
 
 obj-$(CONFIG_PINCTRL)		+= core.o
 obj-$(CONFIG_PINMUX)		+= pinmux.o
-obj-$(CONFIG_PINMUX_SIRF)	+= pinmux-sirf.o
-obj-$(CONFIG_PINMUX_U300)	+= pinmux-u300.o
+obj-$(CONFIG_PINCONF)		+= pinconf.o
+obj-$(CONFIG_PINCTRL_SIRF)	+= pinctrl-sirf.o
+obj-$(CONFIG_PINCTRL_U300)	+= pinctrl-u300.o
+obj-$(CONFIG_PINCTRL_COH901)	+= pinctrl-coh901.o
diff --git a/drivers/pinctrl/core.c b/drivers/pinctrl/core.c
index eadef9e191ea..569bdb3ef104 100644
--- a/drivers/pinctrl/core.c
+++ b/drivers/pinctrl/core.c
@@ -28,17 +28,12 @@
 #include <linux/pinctrl/machine.h>
 #include "core.h"
 #include "pinmux.h"
+#include "pinconf.h"
 
 /* Global list of pin control devices */
 static DEFINE_MUTEX(pinctrldev_list_mutex);
 static LIST_HEAD(pinctrldev_list);
 
-static void pinctrl_dev_release(struct device *dev)
-{
-	struct pinctrl_dev *pctldev = dev_get_drvdata(dev);
-	kfree(pctldev);
-}
-
 const char *pinctrl_dev_get_name(struct pinctrl_dev *pctldev)
 {
 	/* We're not allowed to register devices without name */
@@ -70,14 +65,14 @@ struct pinctrl_dev *get_pinctrl_dev_from_dev(struct device *dev,
 
 	mutex_lock(&pinctrldev_list_mutex);
 	list_for_each_entry(pctldev, &pinctrldev_list, node) {
-		if (dev &&  &pctldev->dev == dev) {
+		if (dev && pctldev->dev == dev) {
 			/* Matched on device pointer */
 			found = true;
 			break;
 		}
 
 		if (devname &&
-		    !strcmp(dev_name(&pctldev->dev), devname)) {
+		    !strcmp(dev_name(pctldev->dev), devname)) {
 			/* Matched on device name */
 			found = true;
 			break;
@@ -88,7 +83,7 @@ struct pinctrl_dev *get_pinctrl_dev_from_dev(struct device *dev,
 	return found ? pctldev : NULL;
 }
 
-struct pin_desc *pin_desc_get(struct pinctrl_dev *pctldev, int pin)
+struct pin_desc *pin_desc_get(struct pinctrl_dev *pctldev, unsigned int pin)
 {
 	struct pin_desc *pindesc;
 	unsigned long flags;
@@ -101,6 +96,31 @@ struct pin_desc *pin_desc_get(struct pinctrl_dev *pctldev, int pin)
 }
 
 /**
+ * pin_get_from_name() - look up a pin number from a name
+ * @pctldev: the pin control device to lookup the pin on
+ * @name: the name of the pin to look up
+ */
+int pin_get_from_name(struct pinctrl_dev *pctldev, const char *name)
+{
+	unsigned i, pin;
+
+	/* The pin number can be retrived from the pin controller descriptor */
+	for (i = 0; i < pctldev->desc->npins; i++) {
+		struct pin_desc *desc;
+
+		pin = pctldev->desc->pins[i].number;
+		desc = pin_desc_get(pctldev, pin);
+		/* Pin space may be sparse */
+		if (desc == NULL)
+			continue;
+		if (desc->name && !strcmp(name, desc->name))
+			return pin;
+	}
+
+	return -EINVAL;
+}
+
+/**
  * pin_is_valid() - check if pin exists on controller
  * @pctldev: the pin control device to check the pin on
  * @pin: pin to check, use the local pin controller index number
@@ -139,6 +159,8 @@ static void pinctrl_free_pindescs(struct pinctrl_dev *pctldev,
 		if (pindesc != NULL) {
 			radix_tree_delete(&pctldev->pin_desc_tree,
 					  pins[i].number);
+			if (pindesc->dynamic_name)
+				kfree(pindesc->name);
 		}
 		kfree(pindesc);
 	}
@@ -160,19 +182,27 @@ static int pinctrl_register_one_pin(struct pinctrl_dev *pctldev,
 	pindesc = kzalloc(sizeof(*pindesc), GFP_KERNEL);
 	if (pindesc == NULL)
 		return -ENOMEM;
+
 	spin_lock_init(&pindesc->lock);
 
 	/* Set owner */
 	pindesc->pctldev = pctldev;
 
 	/* Copy basic pin info */
-	pindesc->name = name;
+	if (pindesc->name) {
+		pindesc->name = name;
+	} else {
+		pindesc->name = kasprintf(GFP_KERNEL, "PIN%u", number);
+		if (pindesc->name == NULL)
+			return -ENOMEM;
+		pindesc->dynamic_name = true;
+	}
 
 	spin_lock(&pctldev->pin_desc_tree_lock);
 	radix_tree_insert(&pctldev->pin_desc_tree, number, pindesc);
 	spin_unlock(&pctldev->pin_desc_tree_lock);
 	pr_debug("registered pin %d (%s) on %s\n",
-		 number, name ? name : "(unnamed)", pctldev->desc->name);
+		 number, pindesc->name, pctldev->desc->name);
 	return 0;
 }
 
@@ -284,21 +314,52 @@ void pinctrl_remove_gpio_range(struct pinctrl_dev *pctldev,
 	mutex_unlock(&pctldev->gpio_ranges_lock);
 }
 
+/**
+ * pinctrl_get_group_selector() - returns the group selector for a group
+ * @pctldev: the pin controller handling the group
+ * @pin_group: the pin group to look up
+ */
+int pinctrl_get_group_selector(struct pinctrl_dev *pctldev,
+			       const char *pin_group)
+{
+	const struct pinctrl_ops *pctlops = pctldev->desc->pctlops;
+	unsigned group_selector = 0;
+
+	while (pctlops->list_groups(pctldev, group_selector) >= 0) {
+		const char *gname = pctlops->get_group_name(pctldev,
+							    group_selector);
+		if (!strcmp(gname, pin_group)) {
+			dev_dbg(pctldev->dev,
+				"found group selector %u for %s\n",
+				group_selector,
+				pin_group);
+			return group_selector;
+		}
+
+		group_selector++;
+	}
+
+	dev_err(pctldev->dev, "does not have pin group %s\n",
+		pin_group);
+
+	return -EINVAL;
+}
+
 #ifdef CONFIG_DEBUG_FS
 
 static int pinctrl_pins_show(struct seq_file *s, void *what)
 {
 	struct pinctrl_dev *pctldev = s->private;
 	const struct pinctrl_ops *ops = pctldev->desc->pctlops;
-	unsigned pin;
+	unsigned i, pin;
 
 	seq_printf(s, "registered pins: %d\n", pctldev->desc->npins);
-	seq_printf(s, "max pin number: %d\n", pctldev->desc->maxpin);
 
-	/* The highest pin number need to be included in the loop, thus <= */
-	for (pin = 0; pin <= pctldev->desc->maxpin; pin++) {
+	/* The pin number can be retrived from the pin controller descriptor */
+	for (i = 0; i < pctldev->desc->npins; i++) {
 		struct pin_desc *desc;
 
+		pin = pctldev->desc->pins[i].number;
 		desc = pin_desc_get(pctldev, pin);
 		/* Pin space may be sparse */
 		if (desc == NULL)
@@ -363,8 +424,11 @@ static int pinctrl_gpioranges_show(struct seq_file *s, void *what)
 	/* Loop over the ranges */
 	mutex_lock(&pctldev->gpio_ranges_lock);
 	list_for_each_entry(range, &pctldev->gpio_ranges, node) {
-		seq_printf(s, "%u: %s [%u - %u]\n", range->id, range->name,
-			   range->base, (range->base + range->npins - 1));
+		seq_printf(s, "%u: %s GPIOS [%u - %u] PINS [%u - %u]\n",
+			   range->id, range->name,
+			   range->base, (range->base + range->npins - 1),
+			   range->pin_base,
+			   (range->pin_base + range->npins - 1));
 	}
 	mutex_unlock(&pctldev->gpio_ranges_lock);
 
@@ -375,11 +439,15 @@ static int pinctrl_devices_show(struct seq_file *s, void *what)
 {
 	struct pinctrl_dev *pctldev;
 
-	seq_puts(s, "name [pinmux]\n");
+	seq_puts(s, "name [pinmux] [pinconf]\n");
 	mutex_lock(&pinctrldev_list_mutex);
 	list_for_each_entry(pctldev, &pinctrldev_list, node) {
 		seq_printf(s, "%s ", pctldev->desc->name);
 		if (pctldev->desc->pmxops)
+			seq_puts(s, "yes ");
+		else
+			seq_puts(s, "no ");
+		if (pctldev->desc->confops)
 			seq_puts(s, "yes");
 		else
 			seq_puts(s, "no");
@@ -444,11 +512,11 @@ static void pinctrl_init_device_debugfs(struct pinctrl_dev *pctldev)
 {
 	static struct dentry *device_root;
 
-	device_root = debugfs_create_dir(dev_name(&pctldev->dev),
+	device_root = debugfs_create_dir(dev_name(pctldev->dev),
 					 debugfs_root);
 	if (IS_ERR(device_root) || !device_root) {
 		pr_warn("failed to create debugfs directory for %s\n",
-			dev_name(&pctldev->dev));
+			dev_name(pctldev->dev));
 		return;
 	}
 	debugfs_create_file("pins", S_IFREG | S_IRUGO,
@@ -458,6 +526,7 @@ static void pinctrl_init_device_debugfs(struct pinctrl_dev *pctldev)
 	debugfs_create_file("gpio-ranges", S_IFREG | S_IRUGO,
 			    device_root, pctldev, &pinctrl_gpioranges_ops);
 	pinmux_init_device_debugfs(device_root, pctldev);
+	pinconf_init_device_debugfs(device_root, pctldev);
 }
 
 static void pinctrl_init_debugfs(void)
@@ -495,7 +564,6 @@ static void pinctrl_init_debugfs(void)
 struct pinctrl_dev *pinctrl_register(struct pinctrl_desc *pctldesc,
 				    struct device *dev, void *driver_data)
 {
-	static atomic_t pinmux_no = ATOMIC_INIT(0);
 	struct pinctrl_dev *pctldev;
 	int ret;
 
@@ -514,6 +582,16 @@ struct pinctrl_dev *pinctrl_register(struct pinctrl_desc *pctldesc,
 		}
 	}
 
+	/* If we're implementing pinconfig, check the ops for sanity */
+	if (pctldesc->confops) {
+		ret = pinconf_check_ops(pctldesc->confops);
+		if (ret) {
+			pr_err("%s pin config ops lacks necessary functions\n",
+			       pctldesc->name);
+			return NULL;
+		}
+	}
+
 	pctldev = kzalloc(sizeof(struct pinctrl_dev), GFP_KERNEL);
 	if (pctldev == NULL)
 		return NULL;
@@ -526,18 +604,7 @@ struct pinctrl_dev *pinctrl_register(struct pinctrl_desc *pctldesc,
 	spin_lock_init(&pctldev->pin_desc_tree_lock);
 	INIT_LIST_HEAD(&pctldev->gpio_ranges);
 	mutex_init(&pctldev->gpio_ranges_lock);
-
-	/* Register device */
-	pctldev->dev.parent = dev;
-	dev_set_name(&pctldev->dev, "pinctrl.%d",
-		     atomic_inc_return(&pinmux_no) - 1);
-	pctldev->dev.release = pinctrl_dev_release;
-	ret = device_register(&pctldev->dev);
-	if (ret != 0) {
-		pr_err("error in device registration\n");
-		goto out_reg_dev_err;
-	}
-	dev_set_drvdata(&pctldev->dev, pctldev);
+	pctldev->dev = dev;
 
 	/* Register all the pins */
 	pr_debug("try to register %d pins on %s...\n",
@@ -547,7 +614,7 @@ struct pinctrl_dev *pinctrl_register(struct pinctrl_desc *pctldesc,
 		pr_err("error during pin registration\n");
 		pinctrl_free_pindescs(pctldev, pctldesc->pins,
 				      pctldesc->npins);
-		goto out_reg_pins_err;
+		goto out_err;
 	}
 
 	pinctrl_init_device_debugfs(pctldev);
@@ -557,10 +624,8 @@ struct pinctrl_dev *pinctrl_register(struct pinctrl_desc *pctldesc,
 	pinmux_hog_maps(pctldev);
 	return pctldev;
 
-out_reg_pins_err:
-	device_del(&pctldev->dev);
-out_reg_dev_err:
-	put_device(&pctldev->dev);
+out_err:
+	kfree(pctldev);
 	return NULL;
 }
 EXPORT_SYMBOL_GPL(pinctrl_register);
@@ -584,7 +649,7 @@ void pinctrl_unregister(struct pinctrl_dev *pctldev)
 	/* Destroy descriptor tree */
 	pinctrl_free_pindescs(pctldev, pctldev->desc->pins,
 			      pctldev->desc->npins);
-	device_unregister(&pctldev->dev);
+	kfree(pctldev);
 }
 EXPORT_SYMBOL_GPL(pinctrl_unregister);
 
diff --git a/drivers/pinctrl/core.h b/drivers/pinctrl/core.h
index 472fa1341cc0..177a3310547f 100644
--- a/drivers/pinctrl/core.h
+++ b/drivers/pinctrl/core.h
@@ -9,6 +9,10 @@
  * License terms: GNU General Public License (GPL) version 2
  */
 
+#include <linux/pinctrl/pinconf.h>
+
+struct pinctrl_gpio_range;
+
 /**
  * struct pinctrl_dev - pin control class device
  * @node: node to include this pin controller in the global pin controller list
@@ -34,7 +38,7 @@ struct pinctrl_dev {
 	spinlock_t pin_desc_tree_lock;
 	struct list_head gpio_ranges;
 	struct mutex gpio_ranges_lock;
-	struct device dev;
+	struct device *dev;
 	struct module *owner;
 	void *driver_data;
 #ifdef CONFIG_PINMUX
@@ -48,6 +52,7 @@ struct pinctrl_dev {
  * @pctldev: corresponding pin control device
  * @name: a name for the pin, e.g. the name of the pin/pad/finger on a
  *	datasheet or such
+ * @dynamic_name: if the name of this pin was dynamically allocated
  * @lock: a lock to protect the descriptor structure
  * @mux_requested: whether the pin is already requested by pinmux or not
  * @mux_function: a named muxing function for the pin that will be passed to
@@ -56,6 +61,7 @@ struct pinctrl_dev {
 struct pin_desc {
 	struct pinctrl_dev *pctldev;
 	const char *name;
+	bool dynamic_name;
 	spinlock_t lock;
 	/* These fields only added when supporting pinmux drivers */
 #ifdef CONFIG_PINMUX
@@ -65,7 +71,10 @@ struct pin_desc {
 
 struct pinctrl_dev *get_pinctrl_dev_from_dev(struct device *dev,
 					     const char *dev_name);
-struct pin_desc *pin_desc_get(struct pinctrl_dev *pctldev, int pin);
+struct pin_desc *pin_desc_get(struct pinctrl_dev *pctldev, unsigned int pin);
+int pin_get_from_name(struct pinctrl_dev *pctldev, const char *name);
 int pinctrl_get_device_gpio_range(unsigned gpio,
 				  struct pinctrl_dev **outdev,
 				  struct pinctrl_gpio_range **outrange);
+int pinctrl_get_group_selector(struct pinctrl_dev *pctldev,
+			       const char *pin_group);
diff --git a/drivers/pinctrl/pinconf.c b/drivers/pinctrl/pinconf.c
new file mode 100644
index 000000000000..1259872b0a1d
--- /dev/null
+++ b/drivers/pinctrl/pinconf.c
@@ -0,0 +1,326 @@
+/*
+ * Core driver for the pin config portions of the pin control subsystem
+ *
+ * Copyright (C) 2011 ST-Ericsson SA
+ * Written on behalf of Linaro for ST-Ericsson
+ *
+ * Author: Linus Walleij <linus.walleij@linaro.org>
+ *
+ * License terms: GNU General Public License (GPL) version 2
+ */
+#define pr_fmt(fmt) "pinconfig core: " fmt
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/slab.h>
+#include <linux/debugfs.h>
+#include <linux/seq_file.h>
+#include <linux/pinctrl/machine.h>
+#include <linux/pinctrl/pinctrl.h>
+#include <linux/pinctrl/pinconf.h>
+#include "core.h"
+#include "pinconf.h"
+
+int pin_config_get_for_pin(struct pinctrl_dev *pctldev, unsigned pin,
+			   unsigned long *config)
+{
+	const struct pinconf_ops *ops = pctldev->desc->confops;
+
+	if (!ops || !ops->pin_config_get) {
+		dev_err(pctldev->dev, "cannot get pin configuration, missing "
+			"pin_config_get() function in driver\n");
+		return -EINVAL;
+	}
+
+	return ops->pin_config_get(pctldev, pin, config);
+}
+
+/**
+ * pin_config_get() - get the configuration of a single pin parameter
+ * @dev_name: name of the pin controller device for this pin
+ * @name: name of the pin to get the config for
+ * @config: the config pointed to by this argument will be filled in with the
+ *	current pin state, it can be used directly by drivers as a numeral, or
+ *	it can be dereferenced to any struct.
+ */
+int pin_config_get(const char *dev_name, const char *name,
+			  unsigned long *config)
+{
+	struct pinctrl_dev *pctldev;
+	int pin;
+
+	pctldev = get_pinctrl_dev_from_dev(NULL, dev_name);
+	if (!pctldev)
+		return -EINVAL;
+
+	pin = pin_get_from_name(pctldev, name);
+	if (pin < 0)
+		return pin;
+
+	return pin_config_get_for_pin(pctldev, pin, config);
+}
+EXPORT_SYMBOL(pin_config_get);
+
+int pin_config_set_for_pin(struct pinctrl_dev *pctldev, unsigned pin,
+			   unsigned long config)
+{
+	const struct pinconf_ops *ops = pctldev->desc->confops;
+	int ret;
+
+	if (!ops || !ops->pin_config_set) {
+		dev_err(pctldev->dev, "cannot configure pin, missing "
+			"config function in driver\n");
+		return -EINVAL;
+	}
+
+	ret = ops->pin_config_set(pctldev, pin, config);
+	if (ret) {
+		dev_err(pctldev->dev,
+			"unable to set pin configuration on pin %d\n", pin);
+		return ret;
+	}
+
+	return 0;
+}
+
+/**
+ * pin_config_set() - set the configuration of a single pin parameter
+ * @dev_name: name of pin controller device for this pin
+ * @name: name of the pin to set the config for
+ * @config: the config in this argument will contain the desired pin state, it
+ *	can be used directly by drivers as a numeral, or it can be dereferenced
+ *	to any struct.
+ */
+int pin_config_set(const char *dev_name, const char *name,
+		   unsigned long config)
+{
+	struct pinctrl_dev *pctldev;
+	int pin;
+
+	pctldev = get_pinctrl_dev_from_dev(NULL, dev_name);
+	if (!pctldev)
+		return -EINVAL;
+
+	pin = pin_get_from_name(pctldev, name);
+	if (pin < 0)
+		return pin;
+
+	return pin_config_set_for_pin(pctldev, pin, config);
+}
+EXPORT_SYMBOL(pin_config_set);
+
+int pin_config_group_get(const char *dev_name, const char *pin_group,
+			 unsigned long *config)
+{
+	struct pinctrl_dev *pctldev;
+	const struct pinconf_ops *ops;
+	int selector;
+
+	pctldev = get_pinctrl_dev_from_dev(NULL, dev_name);
+	if (!pctldev)
+		return -EINVAL;
+	ops = pctldev->desc->confops;
+
+	if (!ops || !ops->pin_config_group_get) {
+		dev_err(pctldev->dev, "cannot get configuration for pin "
+			"group, missing group config get function in "
+			"driver\n");
+		return -EINVAL;
+	}
+
+	selector = pinctrl_get_group_selector(pctldev, pin_group);
+	if (selector < 0)
+		return selector;
+
+	return ops->pin_config_group_get(pctldev, selector, config);
+}
+EXPORT_SYMBOL(pin_config_group_get);
+
+
+int pin_config_group_set(const char *dev_name, const char *pin_group,
+			 unsigned long config)
+{
+	struct pinctrl_dev *pctldev;
+	const struct pinconf_ops *ops;
+	const struct pinctrl_ops *pctlops;
+	int selector;
+	const unsigned *pins;
+	unsigned num_pins;
+	int ret;
+	int i;
+
+	pctldev = get_pinctrl_dev_from_dev(NULL, dev_name);
+	if (!pctldev)
+		return -EINVAL;
+	ops = pctldev->desc->confops;
+	pctlops = pctldev->desc->pctlops;
+
+	if (!ops || (!ops->pin_config_group_set && !ops->pin_config_set)) {
+		dev_err(pctldev->dev, "cannot configure pin group, missing "
+			"config function in driver\n");
+		return -EINVAL;
+	}
+
+	selector = pinctrl_get_group_selector(pctldev, pin_group);
+	if (selector < 0)
+		return selector;
+
+	ret = pctlops->get_group_pins(pctldev, selector, &pins, &num_pins);
+	if (ret) {
+		dev_err(pctldev->dev, "cannot configure pin group, error "
+			"getting pins\n");
+		return ret;
+	}
+
+	/*
+	 * If the pin controller supports handling entire groups we use that
+	 * capability.
+	 */
+	if (ops->pin_config_group_set) {
+		ret = ops->pin_config_group_set(pctldev, selector, config);
+		/*
+		 * If the pin controller prefer that a certain group be handled
+		 * pin-by-pin as well, it returns -EAGAIN.
+		 */
+		if (ret != -EAGAIN)
+			return ret;
+	}
+
+	/*
+	 * If the controller cannot handle entire groups, we configure each pin
+	 * individually.
+	 */
+	if (!ops->pin_config_set)
+		return 0;
+
+	for (i = 0; i < num_pins; i++) {
+		ret = ops->pin_config_set(pctldev, pins[i], config);
+		if (ret < 0)
+			return ret;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL(pin_config_group_set);
+
+int pinconf_check_ops(const struct pinconf_ops *ops)
+{
+	/* We must be able to read out pin status */
+	if (!ops->pin_config_get && !ops->pin_config_group_get)
+		return -EINVAL;
+	/* We have to be able to config the pins in SOME way */
+	if (!ops->pin_config_set && !ops->pin_config_group_set)
+		return -EINVAL;
+	return 0;
+}
+
+#ifdef CONFIG_DEBUG_FS
+
+static void pinconf_dump_pin(struct pinctrl_dev *pctldev,
+			     struct seq_file *s, int pin)
+{
+	const struct pinconf_ops *ops = pctldev->desc->confops;
+
+	if (ops && ops->pin_config_dbg_show)
+		ops->pin_config_dbg_show(pctldev, s, pin);
+}
+
+static int pinconf_pins_show(struct seq_file *s, void *what)
+{
+	struct pinctrl_dev *pctldev = s->private;
+	unsigned i, pin;
+
+	seq_puts(s, "Pin config settings per pin\n");
+	seq_puts(s, "Format: pin (name): pinmux setting array\n");
+
+	/* The pin number can be retrived from the pin controller descriptor */
+	for (i = 0; pin < pctldev->desc->npins; i++) {
+		struct pin_desc *desc;
+
+		pin = pctldev->desc->pins[i].number;
+		desc = pin_desc_get(pctldev, pin);
+		/* Skip if we cannot search the pin */
+		if (desc == NULL)
+			continue;
+
+		seq_printf(s, "pin %d (%s):", pin,
+			   desc->name ? desc->name : "unnamed");
+
+		pinconf_dump_pin(pctldev, s, pin);
+
+		seq_printf(s, "\n");
+	}
+
+	return 0;
+}
+
+static void pinconf_dump_group(struct pinctrl_dev *pctldev,
+			       struct seq_file *s, unsigned selector,
+			       const char *gname)
+{
+	const struct pinconf_ops *ops = pctldev->desc->confops;
+
+	if (ops && ops->pin_config_group_dbg_show)
+		ops->pin_config_group_dbg_show(pctldev, s, selector);
+}
+
+static int pinconf_groups_show(struct seq_file *s, void *what)
+{
+	struct pinctrl_dev *pctldev = s->private;
+	const struct pinctrl_ops *pctlops = pctldev->desc->pctlops;
+	const struct pinconf_ops *ops = pctldev->desc->confops;
+	unsigned selector = 0;
+
+	if (!ops || !ops->pin_config_group_get)
+		return 0;
+
+	seq_puts(s, "Pin config settings per pin group\n");
+	seq_puts(s, "Format: group (name): pinmux setting array\n");
+
+	while (pctlops->list_groups(pctldev, selector) >= 0) {
+		const char *gname = pctlops->get_group_name(pctldev, selector);
+
+		seq_printf(s, "%u (%s):", selector, gname);
+		pinconf_dump_group(pctldev, s, selector, gname);
+		selector++;
+	}
+
+	return 0;
+}
+
+static int pinconf_pins_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, pinconf_pins_show, inode->i_private);
+}
+
+static int pinconf_groups_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, pinconf_groups_show, inode->i_private);
+}
+
+static const struct file_operations pinconf_pins_ops = {
+	.open		= pinconf_pins_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+static const struct file_operations pinconf_groups_ops = {
+	.open		= pinconf_groups_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
+void pinconf_init_device_debugfs(struct dentry *devroot,
+			 struct pinctrl_dev *pctldev)
+{
+	debugfs_create_file("pinconf-pins", S_IFREG | S_IRUGO,
+			    devroot, pctldev, &pinconf_pins_ops);
+	debugfs_create_file("pinconf-groups", S_IFREG | S_IRUGO,
+			    devroot, pctldev, &pinconf_groups_ops);
+}
+
+#endif
diff --git a/drivers/pinctrl/pinconf.h b/drivers/pinctrl/pinconf.h
new file mode 100644
index 000000000000..e7dc6165032a
--- /dev/null
+++ b/drivers/pinctrl/pinconf.h
@@ -0,0 +1,36 @@
+/*
+ * Internal interface between the core pin control system and the
+ * pin config portions
+ *
+ * Copyright (C) 2011 ST-Ericsson SA
+ * Written on behalf of Linaro for ST-Ericsson
+ * Based on bits of regulator core, gpio core and clk core
+ *
+ * Author: Linus Walleij <linus.walleij@linaro.org>
+ *
+ * License terms: GNU General Public License (GPL) version 2
+ */
+
+#ifdef CONFIG_PINCONF
+
+int pinconf_check_ops(const struct pinconf_ops *ops);
+void pinconf_init_device_debugfs(struct dentry *devroot,
+				 struct pinctrl_dev *pctldev);
+int pin_config_get_for_pin(struct pinctrl_dev *pctldev, unsigned pin,
+			   unsigned long *config);
+int pin_config_set_for_pin(struct pinctrl_dev *pctldev, unsigned pin,
+			   unsigned long config);
+
+#else
+
+static inline int pinconf_check_ops(const struct pinconf_ops *ops)
+{
+	return 0;
+}
+
+static inline void pinconf_init_device_debugfs(struct dentry *devroot,
+					       struct pinctrl_dev *pctldev)
+{
+}
+
+#endif
diff --git a/drivers/gpio/gpio-u300.c b/drivers/pinctrl/pinctrl-coh901.c
index 4035778852b0..69fb7072a23e 100644
--- a/drivers/gpio/gpio-u300.c
+++ b/drivers/pinctrl/pinctrl-coh901.c
@@ -22,6 +22,7 @@
 #include <linux/gpio.h>
 #include <linux/list.h>
 #include <linux/slab.h>
+#include <linux/pinctrl/pinmux.h>
 #include <mach/gpio-u300.h>
 
 /*
@@ -351,6 +352,24 @@ static inline struct u300_gpio *to_u300_gpio(struct gpio_chip *chip)
 	return container_of(chip, struct u300_gpio, chip);
 }
 
+static int u300_gpio_request(struct gpio_chip *chip, unsigned offset)
+{
+	/*
+	 * Map back to global GPIO space and request muxing, the direction
+	 * parameter does not matter for this controller.
+	 */
+	int gpio = chip->base + offset;
+
+	return pinmux_request_gpio(gpio);
+}
+
+static void u300_gpio_free(struct gpio_chip *chip, unsigned offset)
+{
+	int gpio = chip->base + offset;
+
+	pinmux_free_gpio(gpio);
+}
+
 static int u300_gpio_get(struct gpio_chip *chip, unsigned offset)
 {
 	struct u300_gpio *gpio = to_u300_gpio(chip);
@@ -483,6 +502,8 @@ static int u300_gpio_config(struct gpio_chip *chip, unsigned offset,
 static struct gpio_chip u300_gpio_chip = {
 	.label			= "u300-gpio-chip",
 	.owner			= THIS_MODULE,
+	.request		= u300_gpio_request,
+	.free			= u300_gpio_free,
 	.get			= u300_gpio_get,
 	.set			= u300_gpio_set,
 	.direction_input	= u300_gpio_direction_input,
diff --git a/drivers/pinctrl/pinmux-sirf.c b/drivers/pinctrl/pinctrl-sirf.c
index d76cae620956..6b3534cc051a 100644
--- a/drivers/pinctrl/pinmux-sirf.c
+++ b/drivers/pinctrl/pinctrl-sirf.c
@@ -463,7 +463,7 @@ static const struct sirfsoc_padmux spi1_padmux = {
 	.funcval = BIT(8),
 };
 
-static const unsigned spi1_pins[] = { 33, 34, 35, 36 };
+static const unsigned spi1_pins[] = { 43, 44, 45, 46 };
 
 static const struct sirfsoc_muxmask sdmmc1_muxmask[] = {
 	{
@@ -1067,7 +1067,7 @@ static int sirfsoc_pinmux_request_gpio(struct pinctrl_dev *pmxdev,
 	spmx = pinctrl_dev_get_drvdata(pmxdev);
 
 	muxval = readl(spmx->gpio_virtbase + SIRFSOC_GPIO_PAD_EN(group));
-	muxval = muxval | (1 << offset);
+	muxval = muxval | (1 << (offset - range->pin_base));
 	writel(muxval, spmx->gpio_virtbase + SIRFSOC_GPIO_PAD_EN(group));
 
 	return 0;
@@ -1086,7 +1086,6 @@ static struct pinctrl_desc sirfsoc_pinmux_desc = {
 	.name = DRIVER_NAME,
 	.pins = sirfsoc_pads,
 	.npins = ARRAY_SIZE(sirfsoc_pads),
-	.maxpin = SIRFSOC_NUM_PADS - 1,
 	.pctlops = &sirfsoc_pctrl_ops,
 	.pmxops = &sirfsoc_pinmux_ops,
 	.owner = THIS_MODULE,
@@ -1100,21 +1099,25 @@ static struct pinctrl_gpio_range sirfsoc_gpio_ranges[] = {
 		.name = "sirfsoc-gpio*",
 		.id = 0,
 		.base = 0,
+		.pin_base = 0,
 		.npins = 32,
 	}, {
 		.name = "sirfsoc-gpio*",
 		.id = 1,
 		.base = 32,
+		.pin_base = 32,
 		.npins = 32,
 	}, {
 		.name = "sirfsoc-gpio*",
 		.id = 2,
 		.base = 64,
+		.pin_base = 64,
 		.npins = 32,
 	}, {
 		.name = "sirfsoc-gpio*",
 		.id = 3,
 		.base = 96,
+		.pin_base = 96,
 		.npins = 19,
 	},
 };
diff --git a/drivers/pinctrl/pinmux-u300.c b/drivers/pinctrl/pinctrl-u300.c
index 4858a64131f8..c8d02f1c2b5e 100644
--- a/drivers/pinctrl/pinmux-u300.c
+++ b/drivers/pinctrl/pinctrl-u300.c
@@ -940,20 +940,23 @@ static void u300_pmx_endisable(struct u300_pmx *upmx, unsigned selector,
 {
 	u16 regval, val, mask;
 	int i;
+	const struct u300_pmx_mask *upmx_mask;
 
+	upmx_mask = u300_pmx_functions[selector].mask;
 	for (i = 0; i < ARRAY_SIZE(u300_pmx_registers); i++) {
 		if (enable)
-			val = u300_pmx_functions[selector].mask->bits;
+			val = upmx_mask->bits;
 		else
 			val = 0;
 
-		mask = u300_pmx_functions[selector].mask->mask;
+		mask = upmx_mask->mask;
 		if (mask != 0) {
 			regval = readw(upmx->virtbase + u300_pmx_registers[i]);
 			regval &= ~mask;
 			regval |= val;
 			writew(regval, upmx->virtbase + u300_pmx_registers[i]);
 		}
+		upmx_mask++;
 	}
 }
 
@@ -1016,21 +1019,35 @@ static struct pinmux_ops u300_pmx_ops = {
 };
 
 /*
- * FIXME: this will be set to sane values as this driver engulfs
- * drivers/gpio/gpio-u300.c and we really know this stuff.
+ * GPIO ranges handled by the application-side COH901XXX GPIO controller
+ * Very many pins can be converted into GPIO pins, but we only list those
+ * that are useful in practice to cut down on tables.
  */
-static struct pinctrl_gpio_range u300_gpio_range = {
-	.name = "COH901*",
-	.id = 0,
-	.base = 0,
-	.npins = 64,
+#define U300_GPIO_RANGE(a, b, c) { .name = "COH901XXX", .id = a, .base= a, \
+			.pin_base = b, .npins = c }
+
+static struct pinctrl_gpio_range u300_gpio_ranges[] = {
+	U300_GPIO_RANGE(10, 426, 1),
+	U300_GPIO_RANGE(11, 180, 1),
+	U300_GPIO_RANGE(12, 165, 1), /* MS/MMC card insertion */
+	U300_GPIO_RANGE(13, 179, 1),
+	U300_GPIO_RANGE(14, 178, 1),
+	U300_GPIO_RANGE(16, 194, 1),
+	U300_GPIO_RANGE(17, 193, 1),
+	U300_GPIO_RANGE(18, 192, 1),
+	U300_GPIO_RANGE(19, 191, 1),
+	U300_GPIO_RANGE(20, 186, 1),
+	U300_GPIO_RANGE(21, 185, 1),
+	U300_GPIO_RANGE(22, 184, 1),
+	U300_GPIO_RANGE(23, 183, 1),
+	U300_GPIO_RANGE(24, 182, 1),
+	U300_GPIO_RANGE(25, 181, 1),
 };
 
 static struct pinctrl_desc u300_pmx_desc = {
 	.name = DRIVER_NAME,
 	.pins = u300_pads,
 	.npins = ARRAY_SIZE(u300_pads),
-	.maxpin = U300_NUM_PADS-1,
 	.pctlops = &u300_pctrl_ops,
 	.pmxops = &u300_pmx_ops,
 	.owner = THIS_MODULE,
@@ -1038,9 +1055,10 @@ static struct pinctrl_desc u300_pmx_desc = {
 
 static int __init u300_pmx_probe(struct platform_device *pdev)
 {
-	int ret;
 	struct u300_pmx *upmx;
 	struct resource *res;
+	int ret;
+	int i;
 
 	/* Create state holders etc for this driver */
 	upmx = devm_kzalloc(&pdev->dev, sizeof(*upmx), GFP_KERNEL);
@@ -1077,7 +1095,8 @@ static int __init u300_pmx_probe(struct platform_device *pdev)
 	}
 
 	/* We will handle a range of GPIO pins */
-	pinctrl_add_gpio_range(upmx->pctl, &u300_gpio_range);
+	for (i = 0; i < ARRAY_SIZE(u300_gpio_ranges); i++)
+		pinctrl_add_gpio_range(upmx->pctl, &u300_gpio_ranges[i]);
 
 	platform_set_drvdata(pdev, upmx);
 
@@ -1099,8 +1118,10 @@ out_no_resource:
 static int __exit u300_pmx_remove(struct platform_device *pdev)
 {
 	struct u300_pmx *upmx = platform_get_drvdata(pdev);
+	int i;
 
-	pinctrl_remove_gpio_range(upmx->pctl, &u300_gpio_range);
+	for (i = 0; i < ARRAY_SIZE(u300_gpio_ranges); i++)
+		pinctrl_remove_gpio_range(upmx->pctl, &u300_gpio_ranges[i]);
 	pinctrl_unregister(upmx->pctl);
 	iounmap(upmx->virtbase);
 	release_mem_region(upmx->phybase, upmx->physize);
diff --git a/drivers/pinctrl/pinmux.c b/drivers/pinctrl/pinmux.c
index a5467f8709e9..a76a348321bb 100644
--- a/drivers/pinctrl/pinmux.c
+++ b/drivers/pinctrl/pinmux.c
@@ -21,6 +21,7 @@
 #include <linux/list.h>
 #include <linux/mutex.h>
 #include <linux/spinlock.h>
+#include <linux/string.h>
 #include <linux/sysfs.h>
 #include <linux/debugfs.h>
 #include <linux/seq_file.h>
@@ -32,12 +33,8 @@
 static DEFINE_MUTEX(pinmux_list_mutex);
 static LIST_HEAD(pinmux_list);
 
-/* List of pinmux hogs */
-static DEFINE_MUTEX(pinmux_hoglist_mutex);
-static LIST_HEAD(pinmux_hoglist);
-
-/* Global pinmux maps, we allow one set only */
-static struct pinmux_map const *pinmux_maps;
+/* Global pinmux maps */
+static struct pinmux_map *pinmux_maps;
 static unsigned pinmux_maps_num;
 
 /**
@@ -98,41 +95,35 @@ struct pinmux_hog {
  * @function: a functional name to give to this pin, passed to the driver
  *	so it knows what function to mux in, e.g. the string "gpioNN"
  *	means that you want to mux in the pin for use as GPIO number NN
- * @gpio: if this request concerns a single GPIO pin
  * @gpio_range: the range matching the GPIO pin if this is a request for a
  *	single GPIO pin
  */
 static int pin_request(struct pinctrl_dev *pctldev,
-		       int pin, const char *function, bool gpio,
+		       int pin, const char *function,
 		       struct pinctrl_gpio_range *gpio_range)
 {
 	struct pin_desc *desc;
 	const struct pinmux_ops *ops = pctldev->desc->pmxops;
 	int status = -EINVAL;
 
-	dev_dbg(&pctldev->dev, "request pin %d for %s\n", pin, function);
-
-	if (!pin_is_valid(pctldev, pin)) {
-		dev_err(&pctldev->dev, "pin is invalid\n");
-		return -EINVAL;
-	}
-
-	if (!function) {
-		dev_err(&pctldev->dev, "no function name given\n");
-		return -EINVAL;
-	}
+	dev_dbg(pctldev->dev, "request pin %d for %s\n", pin, function);
 
 	desc = pin_desc_get(pctldev, pin);
 	if (desc == NULL) {
-		dev_err(&pctldev->dev,
+		dev_err(pctldev->dev,
 			"pin is not registered so it cannot be requested\n");
 		goto out;
 	}
 
+	if (!function) {
+		dev_err(pctldev->dev, "no function name given\n");
+		return -EINVAL;
+	}
+
 	spin_lock(&desc->lock);
 	if (desc->mux_function) {
 		spin_unlock(&desc->lock);
-		dev_err(&pctldev->dev,
+		dev_err(pctldev->dev,
 			"pin already requested\n");
 		goto out;
 	}
@@ -141,7 +132,7 @@ static int pin_request(struct pinctrl_dev *pctldev,
 
 	/* Let each pin increase references to this module */
 	if (!try_module_get(pctldev->owner)) {
-		dev_err(&pctldev->dev,
+		dev_err(pctldev->dev,
 			"could not increase module refcount for pin %d\n",
 			pin);
 		status = -EINVAL;
@@ -152,7 +143,7 @@ static int pin_request(struct pinctrl_dev *pctldev,
 	 * If there is no kind of request function for the pin we just assume
 	 * we got it by default and proceed.
 	 */
-	if (gpio && ops->gpio_request_enable)
+	if (gpio_range && ops->gpio_request_enable)
 		/* This requests and enables a single GPIO pin */
 		status = ops->gpio_request_enable(pctldev, gpio_range, pin);
 	else if (ops->request)
@@ -161,7 +152,7 @@ static int pin_request(struct pinctrl_dev *pctldev,
 		status = 0;
 
 	if (status)
-		dev_err(&pctldev->dev, "->request on device %s failed "
+		dev_err(pctldev->dev, "->request on device %s failed "
 		       "for pin %d\n",
 		       pctldev->desc->name, pin);
 out_free_pin:
@@ -172,7 +163,7 @@ out_free_pin:
 	}
 out:
 	if (status)
-		dev_err(&pctldev->dev, "pin-%d (%s) status %d\n",
+		dev_err(pctldev->dev, "pin-%d (%s) status %d\n",
 		       pin, function ? : "?", status);
 
 	return status;
@@ -182,34 +173,52 @@ out:
  * pin_free() - release a single muxed in pin so something else can be muxed
  * @pctldev: pin controller device handling this pin
  * @pin: the pin to free
- * @free_func: whether to free the pin's assigned function name string
+ * @gpio_range: the range matching the GPIO pin if this is a request for a
+ *	single GPIO pin
+ *
+ * This function returns a pointer to the function name in use. This is used
+ * for callers that dynamically allocate a function name so it can be freed
+ * once the pin is free. This is done for GPIO request functions.
  */
-static void pin_free(struct pinctrl_dev *pctldev, int pin, int free_func)
+static const char *pin_free(struct pinctrl_dev *pctldev, int pin,
+			    struct pinctrl_gpio_range *gpio_range)
 {
 	const struct pinmux_ops *ops = pctldev->desc->pmxops;
 	struct pin_desc *desc;
+	const char *func;
 
 	desc = pin_desc_get(pctldev, pin);
 	if (desc == NULL) {
-		dev_err(&pctldev->dev,
+		dev_err(pctldev->dev,
 			"pin is not registered so it cannot be freed\n");
-		return;
+		return NULL;
 	}
 
-	if (ops->free)
+	/*
+	 * If there is no kind of request function for the pin we just assume
+	 * we got it by default and proceed.
+	 */
+	if (gpio_range && ops->gpio_disable_free)
+		ops->gpio_disable_free(pctldev, gpio_range, pin);
+	else if (ops->free)
 		ops->free(pctldev, pin);
 
 	spin_lock(&desc->lock);
-	if (free_func)
-		kfree(desc->mux_function);
+	func = desc->mux_function;
 	desc->mux_function = NULL;
 	spin_unlock(&desc->lock);
 	module_put(pctldev->owner);
+
+	return func;
 }
 
 /**
  * pinmux_request_gpio() - request a single pin to be muxed in as GPIO
  * @gpio: the GPIO pin number from the GPIO subsystem number space
+ *
+ * This function should *ONLY* be used from gpiolib-based GPIO drivers,
+ * as part of their gpio_request() semantics, platforms and individual drivers
+ * shall *NOT* request GPIO pins to be muxed in.
  */
 int pinmux_request_gpio(unsigned gpio)
 {
@@ -225,7 +234,7 @@ int pinmux_request_gpio(unsigned gpio)
 		return -EINVAL;
 
 	/* Convert to the pin controllers number space */
-	pin = gpio - range->base;
+	pin = gpio - range->base + range->pin_base;
 
 	/* Conjure some name stating what chip and pin this is taken by */
 	snprintf(gpiostr, 15, "%s:%d", range->name, gpio);
@@ -234,7 +243,7 @@ int pinmux_request_gpio(unsigned gpio)
 	if (!function)
 		return -EINVAL;
 
-	ret = pin_request(pctldev, pin, function, true, range);
+	ret = pin_request(pctldev, pin, function, range);
 	if (ret < 0)
 		kfree(function);
 
@@ -245,6 +254,10 @@ EXPORT_SYMBOL_GPL(pinmux_request_gpio);
 /**
  * pinmux_free_gpio() - free a single pin, currently used as GPIO
  * @gpio: the GPIO pin number from the GPIO subsystem number space
+ *
+ * This function should *ONLY* be used from gpiolib-based GPIO drivers,
+ * as part of their gpio_free() semantics, platforms and individual drivers
+ * shall *NOT* request GPIO pins to be muxed out.
  */
 void pinmux_free_gpio(unsigned gpio)
 {
@@ -252,53 +265,108 @@ void pinmux_free_gpio(unsigned gpio)
 	struct pinctrl_gpio_range *range;
 	int ret;
 	int pin;
+	const char *func;
 
 	ret = pinctrl_get_device_gpio_range(gpio, &pctldev, &range);
 	if (ret)
 		return;
 
 	/* Convert to the pin controllers number space */
-	pin = gpio - range->base;
+	pin = gpio - range->base + range->pin_base;
 
-	pin_free(pctldev, pin, true);
+	func = pin_free(pctldev, pin, range);
+	kfree(func);
 }
 EXPORT_SYMBOL_GPL(pinmux_free_gpio);
 
+static int pinmux_gpio_direction(unsigned gpio, bool input)
+{
+	struct pinctrl_dev *pctldev;
+	struct pinctrl_gpio_range *range;
+	const struct pinmux_ops *ops;
+	int ret;
+	int pin;
+
+	ret = pinctrl_get_device_gpio_range(gpio, &pctldev, &range);
+	if (ret)
+		return ret;
+
+	ops = pctldev->desc->pmxops;
+
+	/* Convert to the pin controllers number space */
+	pin = gpio - range->base + range->pin_base;
+
+	if (ops->gpio_set_direction)
+		ret = ops->gpio_set_direction(pctldev, range, pin, input);
+	else
+		ret = 0;
+
+	return ret;
+}
+
+/**
+ * pinmux_gpio_direction_input() - request a GPIO pin to go into input mode
+ * @gpio: the GPIO pin number from the GPIO subsystem number space
+ *
+ * This function should *ONLY* be used from gpiolib-based GPIO drivers,
+ * as part of their gpio_direction_input() semantics, platforms and individual
+ * drivers shall *NOT* touch pinmux GPIO calls.
+ */
+int pinmux_gpio_direction_input(unsigned gpio)
+{
+	return pinmux_gpio_direction(gpio, true);
+}
+EXPORT_SYMBOL_GPL(pinmux_gpio_direction_input);
+
+/**
+ * pinmux_gpio_direction_output() - request a GPIO pin to go into output mode
+ * @gpio: the GPIO pin number from the GPIO subsystem number space
+ *
+ * This function should *ONLY* be used from gpiolib-based GPIO drivers,
+ * as part of their gpio_direction_output() semantics, platforms and individual
+ * drivers shall *NOT* touch pinmux GPIO calls.
+ */
+int pinmux_gpio_direction_output(unsigned gpio)
+{
+	return pinmux_gpio_direction(gpio, false);
+}
+EXPORT_SYMBOL_GPL(pinmux_gpio_direction_output);
+
 /**
  * pinmux_register_mappings() - register a set of pinmux mappings
- * @maps: the pinmux mappings table to register
+ * @maps: the pinmux mappings table to register, this should be marked with
+ *	__initdata so it can be discarded after boot, this function will
+ *	perform a shallow copy for the mapping entries.
  * @num_maps: the number of maps in the mapping table
  *
  * Only call this once during initialization of your machine, the function is
  * tagged as __init and won't be callable after init has completed. The map
  * passed into this function will be owned by the pinmux core and cannot be
- * free:d.
+ * freed.
  */
 int __init pinmux_register_mappings(struct pinmux_map const *maps,
 				    unsigned num_maps)
 {
+	void *tmp_maps;
 	int i;
 
-	if (pinmux_maps != NULL) {
-		pr_err("pinmux mappings already registered, you can only "
-		       "register one set of maps\n");
-		return -EINVAL;
-	}
-
 	pr_debug("add %d pinmux maps\n", num_maps);
+
+	/* First sanity check the new mapping */
 	for (i = 0; i < num_maps; i++) {
-		/* Sanity check the mapping */
 		if (!maps[i].name) {
 			pr_err("failed to register map %d: "
 			       "no map name given\n", i);
 			return -EINVAL;
 		}
+
 		if (!maps[i].ctrl_dev && !maps[i].ctrl_dev_name) {
 			pr_err("failed to register map %s (%d): "
 			       "no pin control device given\n",
 			       maps[i].name, i);
 			return -EINVAL;
 		}
+
 		if (!maps[i].function) {
 			pr_err("failed to register map %s (%d): "
 			       "no function ID given\n", maps[i].name, i);
@@ -315,9 +383,30 @@ int __init pinmux_register_mappings(struct pinmux_map const *maps,
 				 maps[i].function);
 	}
 
-	pinmux_maps = maps;
-	pinmux_maps_num = num_maps;
+	/*
+	 * Make a copy of the map array - string pointers will end up in the
+	 * kernel const section anyway so these do not need to be deep copied.
+	 */
+	if (!pinmux_maps_num) {
+		/* On first call, just copy them */
+		tmp_maps = kmemdup(maps,
+				   sizeof(struct pinmux_map) * num_maps,
+				   GFP_KERNEL);
+		if (!tmp_maps)
+			return -ENOMEM;
+	} else {
+		/* Subsequent calls, reallocate array to new size */
+		size_t oldsize = sizeof(struct pinmux_map) * pinmux_maps_num;
+		size_t newsize = sizeof(struct pinmux_map) * num_maps;
+
+		tmp_maps = krealloc(pinmux_maps, oldsize + newsize, GFP_KERNEL);
+		if (!tmp_maps)
+			return -ENOMEM;
+		memcpy((tmp_maps + oldsize), maps, newsize);
+	}
 
+	pinmux_maps = tmp_maps;
+	pinmux_maps_num += num_maps;
 	return 0;
 }
 
@@ -345,14 +434,14 @@ static int acquire_pins(struct pinctrl_dev *pctldev,
 	if (ret)
 		return ret;
 
-	dev_dbg(&pctldev->dev, "requesting the %u pins from group %u\n",
+	dev_dbg(pctldev->dev, "requesting the %u pins from group %u\n",
 		num_pins, group_selector);
 
 	/* Try to allocate all pins in this group, one by one */
 	for (i = 0; i < num_pins; i++) {
-		ret = pin_request(pctldev, pins[i], func, false, NULL);
+		ret = pin_request(pctldev, pins[i], func, NULL);
 		if (ret) {
-			dev_err(&pctldev->dev,
+			dev_err(pctldev->dev,
 				"could not get pin %d for function %s "
 				"on device %s - conflicting mux mappings?\n",
 				pins[i], func ? : "(undefined)",
@@ -360,7 +449,7 @@ static int acquire_pins(struct pinctrl_dev *pctldev,
 			/* On error release all taken pins */
 			i--; /* this pin just failed */
 			for (; i >= 0; i--)
-				pin_free(pctldev, pins[i], false);
+				pin_free(pctldev, pins[i], NULL);
 			return -ENODEV;
 		}
 	}
@@ -384,44 +473,13 @@ static void release_pins(struct pinctrl_dev *pctldev,
 	ret = pctlops->get_group_pins(pctldev, group_selector,
 				      &pins, &num_pins);
 	if (ret) {
-		dev_err(&pctldev->dev, "could not get pins to release for "
+		dev_err(pctldev->dev, "could not get pins to release for "
 			"group selector %d\n",
 			group_selector);
 		return;
 	}
 	for (i = 0; i < num_pins; i++)
-		pin_free(pctldev, pins[i], false);
-}
-
-/**
- * pinmux_get_group_selector() - returns the group selector for a group
- * @pctldev: the pin controller handling the group
- * @pin_group: the pin group to look up
- */
-static int pinmux_get_group_selector(struct pinctrl_dev *pctldev,
-				     const char *pin_group)
-{
-	const struct pinctrl_ops *pctlops = pctldev->desc->pctlops;
-	unsigned group_selector = 0;
-
-	while (pctlops->list_groups(pctldev, group_selector) >= 0) {
-		const char *gname = pctlops->get_group_name(pctldev,
-							    group_selector);
-		if (!strcmp(gname, pin_group)) {
-			dev_dbg(&pctldev->dev,
-				"found group selector %u for %s\n",
-				group_selector,
-				pin_group);
-			return group_selector;
-		}
-
-		group_selector++;
-	}
-
-	dev_err(&pctldev->dev, "does not have pin group %s\n",
-		pin_group);
-
-	return -EINVAL;
+		pin_free(pctldev, pins[i], NULL);
 }
 
 /**
@@ -465,9 +523,9 @@ static int pinmux_check_pin_group(struct pinctrl_dev *pctldev,
 			return ret;
 		if (num_groups < 1)
 			return -EINVAL;
-		ret = pinmux_get_group_selector(pctldev, groups[0]);
+		ret = pinctrl_get_group_selector(pctldev, groups[0]);
 		if (ret < 0) {
-			dev_err(&pctldev->dev,
+			dev_err(pctldev->dev,
 				"function %s wants group %s but the pin "
 				"controller does not seem to have that group\n",
 				pmxops->get_function_name(pctldev, func_selector),
@@ -476,7 +534,7 @@ static int pinmux_check_pin_group(struct pinctrl_dev *pctldev,
 		}
 
 		if (num_groups > 1)
-			dev_dbg(&pctldev->dev,
+			dev_dbg(pctldev->dev,
 				"function %s support more than one group, "
 				"default-selecting first group %s (%d)\n",
 				pmxops->get_function_name(pctldev, func_selector),
@@ -486,13 +544,13 @@ static int pinmux_check_pin_group(struct pinctrl_dev *pctldev,
 		return ret;
 	}
 
-	dev_dbg(&pctldev->dev,
+	dev_dbg(pctldev->dev,
 		"check if we have pin group %s on controller %s\n",
 		pin_group, pinctrl_dev_get_name(pctldev));
 
-	ret = pinmux_get_group_selector(pctldev, pin_group);
+	ret = pinctrl_get_group_selector(pctldev, pin_group);
 	if (ret < 0) {
-		dev_dbg(&pctldev->dev,
+		dev_dbg(pctldev->dev,
 			"%s does not support pin group %s with function %s\n",
 			pinctrl_dev_get_name(pctldev),
 			pin_group,
@@ -569,7 +627,7 @@ static int pinmux_enable_muxmap(struct pinctrl_dev *pctldev,
 	 */
 
 	if (pmx->pctldev && pmx->pctldev != pctldev) {
-		dev_err(&pctldev->dev,
+		dev_err(pctldev->dev,
 			"different pin control devices given for device %s, "
 			"function %s\n",
 			devname,
@@ -592,7 +650,7 @@ static int pinmux_enable_muxmap(struct pinctrl_dev *pctldev,
 	 */
 	if (pmx->func_selector != UINT_MAX &&
 	    pmx->func_selector != func_selector) {
-		dev_err(&pctldev->dev,
+		dev_err(pctldev->dev,
 			"dual function defines in the map for device %s\n",
 		       devname);
 		return -EINVAL;
@@ -698,7 +756,7 @@ struct pinmux *pinmux_get(struct device *dev, const char *name)
 		}
 
 		pr_debug("in map, found pctldev %s to handle function %s",
-			 dev_name(&pctldev->dev), map->function);
+			 dev_name(pctldev->dev), map->function);
 
 
 		/*
@@ -874,7 +932,7 @@ static int pinmux_hog_map(struct pinctrl_dev *pctldev,
 		 * without any problems, so then we can hog pinmuxes for
 		 * all devices that just want a static pin mux at this point.
 		 */
-		dev_err(&pctldev->dev, "map %s wants to hog a non-system "
+		dev_err(pctldev->dev, "map %s wants to hog a non-system "
 			"pinmux, this is not going to work\n", map->name);
 		return -EINVAL;
 	}
@@ -886,7 +944,7 @@ static int pinmux_hog_map(struct pinctrl_dev *pctldev,
 	pmx = pinmux_get(NULL, map->name);
 	if (IS_ERR(pmx)) {
 		kfree(hog);
-		dev_err(&pctldev->dev,
+		dev_err(pctldev->dev,
 			"could not get the %s pinmux mapping for hogging\n",
 			map->name);
 		return PTR_ERR(pmx);
@@ -896,7 +954,7 @@ static int pinmux_hog_map(struct pinctrl_dev *pctldev,
 	if (ret) {
 		pinmux_put(pmx);
 		kfree(hog);
-		dev_err(&pctldev->dev,
+		dev_err(pctldev->dev,
 			"could not enable the %s pinmux mapping for hogging\n",
 			map->name);
 		return ret;
@@ -905,7 +963,7 @@ static int pinmux_hog_map(struct pinctrl_dev *pctldev,
 	hog->map = map;
 	hog->pmx = pmx;
 
-	dev_info(&pctldev->dev, "hogged map %s, function %s\n", map->name,
+	dev_info(pctldev->dev, "hogged map %s, function %s\n", map->name,
 		 map->function);
 	mutex_lock(&pctldev->pinmux_hogs_lock);
 	list_add(&hog->node, &pctldev->pinmux_hogs);
@@ -924,7 +982,7 @@ static int pinmux_hog_map(struct pinctrl_dev *pctldev,
  */
 int pinmux_hog_maps(struct pinctrl_dev *pctldev)
 {
-	struct device *dev = &pctldev->dev;
+	struct device *dev = pctldev->dev;
 	const char *devname = dev_name(dev);
 	int ret;
 	int i;
@@ -948,7 +1006,7 @@ int pinmux_hog_maps(struct pinctrl_dev *pctldev)
 }
 
 /**
- * pinmux_hog_maps() - unhog specific map entries on controller device
+ * pinmux_unhog_maps() - unhog specific map entries on controller device
  * @pctldev: the pin control device to unhog entries on
  */
 void pinmux_unhog_maps(struct pinctrl_dev *pctldev)
@@ -1005,18 +1063,19 @@ static int pinmux_functions_show(struct seq_file *s, void *what)
 static int pinmux_pins_show(struct seq_file *s, void *what)
 {
 	struct pinctrl_dev *pctldev = s->private;
-	unsigned pin;
+	unsigned i, pin;
 
 	seq_puts(s, "Pinmux settings per pin\n");
 	seq_puts(s, "Format: pin (name): pinmuxfunction\n");
 
-	/* The highest pin number need to be included in the loop, thus <= */
-	for (pin = 0; pin <= pctldev->desc->maxpin; pin++) {
+	/* The pin number can be retrived from the pin controller descriptor */
+	for (i = 0; i < pctldev->desc->npins; i++) {
 
 		struct pin_desc *desc;
 
+		pin = pctldev->desc->pins[i].number;
 		desc = pin_desc_get(pctldev, pin);
-		/* Pin space may be sparse */
+		/* Skip if we cannot search the pin */
 		if (desc == NULL)
 			continue;
 
diff --git a/drivers/regulator/88pm8607.c b/drivers/regulator/88pm8607.c
index ca0d608f8248..df33530cec4a 100644
--- a/drivers/regulator/88pm8607.c
+++ b/drivers/regulator/88pm8607.c
@@ -427,7 +427,7 @@ static int __devinit pm8607_regulator_probe(struct platform_device *pdev)
 
 	/* replace driver_data with info */
 	info->regulator = regulator_register(&info->desc, &pdev->dev,
-					     pdata, info);
+					     pdata, info, NULL);
 	if (IS_ERR(info->regulator)) {
 		dev_err(&pdev->dev, "failed to register regulator %s\n",
 			info->desc.name);
diff --git a/drivers/regulator/Kconfig b/drivers/regulator/Kconfig
index 9713b1b860cb..7a61b17ddd04 100644
--- a/drivers/regulator/Kconfig
+++ b/drivers/regulator/Kconfig
@@ -93,6 +93,7 @@ config REGULATOR_MAX1586
 config REGULATOR_MAX8649
 	tristate "Maxim 8649 voltage regulator"
 	depends on I2C
+	select REGMAP_I2C
 	help
 	  This driver controls a Maxim 8649 voltage output regulator via
 	  I2C bus.
@@ -177,6 +178,13 @@ config REGULATOR_DA903X
 	  Say y here to support the BUCKs and LDOs regulators found on
 	  Dialog Semiconductor DA9030/DA9034 PMIC.
 
+config REGULATOR_DA9052
+	tristate "Dialog DA9052/DA9053 regulators"
+	depends on PMIC_DA9052
+	help
+	  This driver supports the voltage regulators of DA9052-BC and
+	  DA9053-AA/Bx PMIC.
+
 config REGULATOR_PCF50633
 	tristate "PCF50633 regulator driver"
         depends on MFD_PCF50633
diff --git a/drivers/regulator/Makefile b/drivers/regulator/Makefile
index 93a6318f5328..503bac87715e 100644
--- a/drivers/regulator/Makefile
+++ b/drivers/regulator/Makefile
@@ -4,6 +4,7 @@
 
 
 obj-$(CONFIG_REGULATOR) += core.o dummy.o
+obj-$(CONFIG_OF) += of_regulator.o
 obj-$(CONFIG_REGULATOR_FIXED_VOLTAGE) += fixed.o
 obj-$(CONFIG_REGULATOR_VIRTUAL_CONSUMER) += virtual.o
 obj-$(CONFIG_REGULATOR_USERSPACE_CONSUMER) += userspace-consumer.o
@@ -29,6 +30,7 @@ obj-$(CONFIG_REGULATOR_WM8400) += wm8400-regulator.o
 obj-$(CONFIG_REGULATOR_WM8994) += wm8994-regulator.o
 obj-$(CONFIG_REGULATOR_TPS6586X) += tps6586x-regulator.o
 obj-$(CONFIG_REGULATOR_DA903X)	+= da903x.o
+obj-$(CONFIG_REGULATOR_DA9052)	+= da9052-regulator.o
 obj-$(CONFIG_REGULATOR_PCF50633) += pcf50633-regulator.o
 obj-$(CONFIG_REGULATOR_PCAP) += pcap-regulator.o
 obj-$(CONFIG_REGULATOR_MC13783) += mc13783-regulator.o
diff --git a/drivers/regulator/aat2870-regulator.c b/drivers/regulator/aat2870-regulator.c
index 298c6c6a2795..685ad43b0749 100644
--- a/drivers/regulator/aat2870-regulator.c
+++ b/drivers/regulator/aat2870-regulator.c
@@ -63,7 +63,7 @@ static int aat2870_ldo_set_voltage_sel(struct regulator_dev *rdev,
 	struct aat2870_data *aat2870 = dev_get_drvdata(ri->pdev->dev.parent);
 
 	return aat2870->update(aat2870, ri->voltage_addr, ri->voltage_mask,
-			(selector << ri->voltage_shift) & ri->voltage_mask);
+			       selector << ri->voltage_shift);
 }
 
 static int aat2870_ldo_get_voltage_sel(struct regulator_dev *rdev)
@@ -188,7 +188,7 @@ static int aat2870_regulator_probe(struct platform_device *pdev)
 	ri->pdev = pdev;
 
 	rdev = regulator_register(&ri->desc, &pdev->dev,
-				  pdev->dev.platform_data, ri);
+				  pdev->dev.platform_data, ri, NULL);
 	if (IS_ERR(rdev)) {
 		dev_err(&pdev->dev, "Failed to register regulator %s\n",
 			ri->desc.name);
diff --git a/drivers/regulator/ab3100.c b/drivers/regulator/ab3100.c
index 585e4946fe0a..042271aace6a 100644
--- a/drivers/regulator/ab3100.c
+++ b/drivers/regulator/ab3100.c
@@ -634,7 +634,7 @@ static int __devinit ab3100_regulators_probe(struct platform_device *pdev)
 		rdev = regulator_register(&ab3100_regulator_desc[i],
 					  &pdev->dev,
 					  &plfdata->reg_constraints[i],
-					  reg);
+					  reg, NULL);
 
 		if (IS_ERR(rdev)) {
 			err = PTR_ERR(rdev);
diff --git a/drivers/regulator/ab8500.c b/drivers/regulator/ab8500.c
index 6e1ae69646b3..e91b8ddc2793 100644
--- a/drivers/regulator/ab8500.c
+++ b/drivers/regulator/ab8500.c
@@ -822,7 +822,7 @@ static __devinit int ab8500_regulator_probe(struct platform_device *pdev)
 
 		/* register regulator with framework */
 		info->regulator = regulator_register(&info->desc, &pdev->dev,
-				&pdata->regulator[i], info);
+				&pdata->regulator[i], info, NULL);
 		if (IS_ERR(info->regulator)) {
 			err = PTR_ERR(info->regulator);
 			dev_err(&pdev->dev, "failed to register regulator %s\n",
diff --git a/drivers/regulator/ad5398.c b/drivers/regulator/ad5398.c
index a4be41614eeb..483c80930852 100644
--- a/drivers/regulator/ad5398.c
+++ b/drivers/regulator/ad5398.c
@@ -233,7 +233,7 @@ static int __devinit ad5398_probe(struct i2c_client *client,
 	chip->current_mask = (chip->current_level - 1) << chip->current_offset;
 
 	chip->rdev = regulator_register(&ad5398_reg, &client->dev,
-					init_data, chip);
+					init_data, chip, NULL);
 	if (IS_ERR(chip->rdev)) {
 		ret = PTR_ERR(chip->rdev);
 		dev_err(&client->dev, "failed to register %s %s\n",
diff --git a/drivers/regulator/bq24022.c b/drivers/regulator/bq24022.c
index e24d1b7d97a8..9fab6d1bbe80 100644
--- a/drivers/regulator/bq24022.c
+++ b/drivers/regulator/bq24022.c
@@ -107,7 +107,7 @@ static int __init bq24022_probe(struct platform_device *pdev)
 	ret = gpio_direction_output(pdata->gpio_nce, 1);
 
 	bq24022 = regulator_register(&bq24022_desc, &pdev->dev,
-				     pdata->init_data, pdata);
+				     pdata->init_data, pdata, NULL);
 	if (IS_ERR(bq24022)) {
 		dev_dbg(&pdev->dev, "couldn't register regulator\n");
 		ret = PTR_ERR(bq24022);
diff --git a/drivers/regulator/core.c b/drivers/regulator/core.c
index 938398f3e869..ca86f39a0fdc 100644
--- a/drivers/regulator/core.c
+++ b/drivers/regulator/core.c
@@ -25,6 +25,8 @@
 #include <linux/mutex.h>
 #include <linux/suspend.h>
 #include <linux/delay.h>
+#include <linux/of.h>
+#include <linux/regulator/of_regulator.h>
 #include <linux/regulator/consumer.h>
 #include <linux/regulator/driver.h>
 #include <linux/regulator/machine.h>
@@ -132,6 +134,33 @@ static struct regulator *get_device_regulator(struct device *dev)
 	return NULL;
 }
 
+/**
+ * of_get_regulator - get a regulator device node based on supply name
+ * @dev: Device pointer for the consumer (of regulator) device
+ * @supply: regulator supply name
+ *
+ * Extract the regulator device node corresponding to the supply name.
+ * retruns the device node corresponding to the regulator if found, else
+ * returns NULL.
+ */
+static struct device_node *of_get_regulator(struct device *dev, const char *supply)
+{
+	struct device_node *regnode = NULL;
+	char prop_name[32]; /* 32 is max size of property name */
+
+	dev_dbg(dev, "Looking up %s-supply from device tree\n", supply);
+
+	snprintf(prop_name, 32, "%s-supply", supply);
+	regnode = of_parse_phandle(dev->of_node, prop_name, 0);
+
+	if (!regnode) {
+		dev_warn(dev, "%s property in node %s references invalid phandle",
+				prop_name, dev->of_node->full_name);
+		return NULL;
+	}
+	return regnode;
+}
+
 /* Platform voltage constraint check */
 static int regulator_check_voltage(struct regulator_dev *rdev,
 				   int *min_uV, int *max_uV)
@@ -883,8 +912,12 @@ static int set_machine_constraints(struct regulator_dev *rdev,
 	int ret = 0;
 	struct regulator_ops *ops = rdev->desc->ops;
 
-	rdev->constraints = kmemdup(constraints, sizeof(*constraints),
-				    GFP_KERNEL);
+	if (constraints)
+		rdev->constraints = kmemdup(constraints, sizeof(*constraints),
+					    GFP_KERNEL);
+	else
+		rdev->constraints = kzalloc(sizeof(*constraints),
+					    GFP_KERNEL);
 	if (!rdev->constraints)
 		return -ENOMEM;
 
@@ -893,7 +926,7 @@ static int set_machine_constraints(struct regulator_dev *rdev,
 		goto out;
 
 	/* do we need to setup our suspend state */
-	if (constraints->initial_state) {
+	if (rdev->constraints->initial_state) {
 		ret = suspend_prepare(rdev, rdev->constraints->initial_state);
 		if (ret < 0) {
 			rdev_err(rdev, "failed to set suspend state\n");
@@ -901,7 +934,7 @@ static int set_machine_constraints(struct regulator_dev *rdev,
 		}
 	}
 
-	if (constraints->initial_mode) {
+	if (rdev->constraints->initial_mode) {
 		if (!ops->set_mode) {
 			rdev_err(rdev, "no set_mode operation\n");
 			ret = -EINVAL;
@@ -952,9 +985,8 @@ static int set_supply(struct regulator_dev *rdev,
 	rdev_info(rdev, "supplied by %s\n", rdev_get_name(supply_rdev));
 
 	rdev->supply = create_regulator(supply_rdev, &rdev->dev, "SUPPLY");
-	if (IS_ERR(rdev->supply)) {
-		err = PTR_ERR(rdev->supply);
-		rdev->supply = NULL;
+	if (rdev->supply == NULL) {
+		err = -ENOMEM;
 		return err;
 	}
 
@@ -1148,6 +1180,30 @@ static int _regulator_get_enable_time(struct regulator_dev *rdev)
 	return rdev->desc->ops->enable_time(rdev);
 }
 
+static struct regulator_dev *regulator_dev_lookup(struct device *dev,
+							 const char *supply)
+{
+	struct regulator_dev *r;
+	struct device_node *node;
+
+	/* first do a dt based lookup */
+	if (dev && dev->of_node) {
+		node = of_get_regulator(dev, supply);
+		if (node)
+			list_for_each_entry(r, &regulator_list, list)
+				if (r->dev.parent &&
+					node == r->dev.of_node)
+					return r;
+	}
+
+	/* if not found, try doing it non-dt way */
+	list_for_each_entry(r, &regulator_list, list)
+		if (strcmp(rdev_get_name(r), supply) == 0)
+			return r;
+
+	return NULL;
+}
+
 /* Internal regulator request function */
 static struct regulator *_regulator_get(struct device *dev, const char *id,
 					int exclusive)
@@ -1168,6 +1224,10 @@ static struct regulator *_regulator_get(struct device *dev, const char *id,
 
 	mutex_lock(&regulator_list_mutex);
 
+	rdev = regulator_dev_lookup(dev, id);
+	if (rdev)
+		goto found;
+
 	list_for_each_entry(map, &regulator_map_list, list) {
 		/* If the mapping has a device set up it must match */
 		if (map->dev_name &&
@@ -1221,6 +1281,7 @@ found:
 	if (regulator == NULL) {
 		regulator = ERR_PTR(-ENOMEM);
 		module_put(rdev->owner);
+		goto out;
 	}
 
 	rdev->open_count++;
@@ -1726,6 +1787,7 @@ int regulator_is_supported_voltage(struct regulator *regulator,
 
 	return 0;
 }
+EXPORT_SYMBOL_GPL(regulator_is_supported_voltage);
 
 static int _regulator_do_set_voltage(struct regulator_dev *rdev,
 				     int min_uV, int max_uV)
@@ -2429,6 +2491,43 @@ err:
 EXPORT_SYMBOL_GPL(regulator_bulk_disable);
 
 /**
+ * regulator_bulk_force_disable - force disable multiple regulator consumers
+ *
+ * @num_consumers: Number of consumers
+ * @consumers:     Consumer data; clients are stored here.
+ * @return         0 on success, an errno on failure
+ *
+ * This convenience API allows consumers to forcibly disable multiple regulator
+ * clients in a single API call.
+ * NOTE: This should be used for situations when device damage will
+ * likely occur if the regulators are not disabled (e.g. over temp).
+ * Although regulator_force_disable function call for some consumers can
+ * return error numbers, the function is called for all consumers.
+ */
+int regulator_bulk_force_disable(int num_consumers,
+			   struct regulator_bulk_data *consumers)
+{
+	int i;
+	int ret;
+
+	for (i = 0; i < num_consumers; i++)
+		consumers[i].ret =
+			    regulator_force_disable(consumers[i].consumer);
+
+	for (i = 0; i < num_consumers; i++) {
+		if (consumers[i].ret != 0) {
+			ret = consumers[i].ret;
+			goto out;
+		}
+	}
+
+	return 0;
+out:
+	return ret;
+}
+EXPORT_SYMBOL_GPL(regulator_bulk_force_disable);
+
+/**
  * regulator_bulk_free - free multiple regulator consumers
  *
  * @num_consumers: Number of consumers
@@ -2503,7 +2602,8 @@ static int add_regulator_attributes(struct regulator_dev *rdev)
 	int			status = 0;
 
 	/* some attributes need specific methods to be displayed */
-	if (ops->get_voltage || ops->get_voltage_sel) {
+	if ((ops->get_voltage && ops->get_voltage(rdev) >= 0) ||
+	    (ops->get_voltage_sel && ops->get_voltage_sel(rdev) >= 0)) {
 		status = device_create_file(dev, &dev_attr_microvolts);
 		if (status < 0)
 			return status;
@@ -2637,11 +2737,13 @@ static void rdev_init_debugfs(struct regulator_dev *rdev)
  */
 struct regulator_dev *regulator_register(struct regulator_desc *regulator_desc,
 	struct device *dev, const struct regulator_init_data *init_data,
-	void *driver_data)
+	void *driver_data, struct device_node *of_node)
 {
+	const struct regulation_constraints *constraints = NULL;
 	static atomic_t regulator_no = ATOMIC_INIT(0);
 	struct regulator_dev *rdev;
 	int ret, i;
+	const char *supply = NULL;
 
 	if (regulator_desc == NULL)
 		return ERR_PTR(-EINVAL);
@@ -2653,9 +2755,6 @@ struct regulator_dev *regulator_register(struct regulator_desc *regulator_desc,
 	    regulator_desc->type != REGULATOR_CURRENT)
 		return ERR_PTR(-EINVAL);
 
-	if (!init_data)
-		return ERR_PTR(-EINVAL);
-
 	/* Only one of each should be implemented */
 	WARN_ON(regulator_desc->ops->get_voltage &&
 		regulator_desc->ops->get_voltage_sel);
@@ -2688,7 +2787,7 @@ struct regulator_dev *regulator_register(struct regulator_desc *regulator_desc,
 	INIT_DELAYED_WORK(&rdev->disable_work, regulator_disable_work);
 
 	/* preform any regulator specific init */
-	if (init_data->regulator_init) {
+	if (init_data && init_data->regulator_init) {
 		ret = init_data->regulator_init(rdev->reg_data);
 		if (ret < 0)
 			goto clean;
@@ -2696,6 +2795,7 @@ struct regulator_dev *regulator_register(struct regulator_desc *regulator_desc,
 
 	/* register with sysfs */
 	rdev->dev.class = &regulator_class;
+	rdev->dev.of_node = of_node;
 	rdev->dev.parent = dev;
 	dev_set_name(&rdev->dev, "regulator.%d",
 		     atomic_inc_return(&regulator_no) - 1);
@@ -2708,7 +2808,10 @@ struct regulator_dev *regulator_register(struct regulator_desc *regulator_desc,
 	dev_set_drvdata(&rdev->dev, rdev);
 
 	/* set regulator constraints */
-	ret = set_machine_constraints(rdev, &init_data->constraints);
+	if (init_data)
+		constraints = &init_data->constraints;
+
+	ret = set_machine_constraints(rdev, constraints);
 	if (ret < 0)
 		goto scrub;
 
@@ -2717,21 +2820,18 @@ struct regulator_dev *regulator_register(struct regulator_desc *regulator_desc,
 	if (ret < 0)
 		goto scrub;
 
-	if (init_data->supply_regulator) {
+	if (init_data && init_data->supply_regulator)
+		supply = init_data->supply_regulator;
+	else if (regulator_desc->supply_name)
+		supply = regulator_desc->supply_name;
+
+	if (supply) {
 		struct regulator_dev *r;
-		int found = 0;
 
-		list_for_each_entry(r, &regulator_list, list) {
-			if (strcmp(rdev_get_name(r),
-				   init_data->supply_regulator) == 0) {
-				found = 1;
-				break;
-			}
-		}
+		r = regulator_dev_lookup(dev, supply);
 
-		if (!found) {
-			dev_err(dev, "Failed to find supply %s\n",
-				init_data->supply_regulator);
+		if (!r) {
+			dev_err(dev, "Failed to find supply %s\n", supply);
 			ret = -ENODEV;
 			goto scrub;
 		}
@@ -2739,18 +2839,28 @@ struct regulator_dev *regulator_register(struct regulator_desc *regulator_desc,
 		ret = set_supply(rdev, r);
 		if (ret < 0)
 			goto scrub;
+
+		/* Enable supply if rail is enabled */
+		if (rdev->desc->ops->is_enabled &&
+				rdev->desc->ops->is_enabled(rdev)) {
+			ret = regulator_enable(rdev->supply);
+			if (ret < 0)
+				goto scrub;
+		}
 	}
 
 	/* add consumers devices */
-	for (i = 0; i < init_data->num_consumer_supplies; i++) {
-		ret = set_consumer_device_supply(rdev,
-			init_data->consumer_supplies[i].dev,
-			init_data->consumer_supplies[i].dev_name,
-			init_data->consumer_supplies[i].supply);
-		if (ret < 0) {
-			dev_err(dev, "Failed to set supply %s\n",
+	if (init_data) {
+		for (i = 0; i < init_data->num_consumer_supplies; i++) {
+			ret = set_consumer_device_supply(rdev,
+				init_data->consumer_supplies[i].dev,
+				init_data->consumer_supplies[i].dev_name,
 				init_data->consumer_supplies[i].supply);
-			goto unset_supplies;
+			if (ret < 0) {
+				dev_err(dev, "Failed to set supply %s\n",
+					init_data->consumer_supplies[i].supply);
+				goto unset_supplies;
+			}
 		}
 	}
 
diff --git a/drivers/regulator/da903x.c b/drivers/regulator/da903x.c
index e23ddfa8b2c6..8dbc54da7d70 100644
--- a/drivers/regulator/da903x.c
+++ b/drivers/regulator/da903x.c
@@ -537,7 +537,7 @@ static int __devinit da903x_regulator_probe(struct platform_device *pdev)
 		ri->desc.ops = &da9030_regulator_ldo1_15_ops;
 
 	rdev = regulator_register(&ri->desc, &pdev->dev,
-				  pdev->dev.platform_data, ri);
+				  pdev->dev.platform_data, ri, NULL);
 	if (IS_ERR(rdev)) {
 		dev_err(&pdev->dev, "failed to register regulator %s\n",
 				ri->desc.name);
diff --git a/drivers/regulator/da9052-regulator.c b/drivers/regulator/da9052-regulator.c
new file mode 100644
index 000000000000..3767364452fd
--- /dev/null
+++ b/drivers/regulator/da9052-regulator.c
@@ -0,0 +1,606 @@
+/*
+* da9052-regulator.c: Regulator driver for DA9052
+*
+* Copyright(c) 2011 Dialog Semiconductor Ltd.
+*
+* Author: David Dajun Chen <dchen@diasemi.com>
+*
+* This program is free software; you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation; either version 2 of the License, or
+* (at your option) any later version.
+*
+*/
+
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/init.h>
+#include <linux/err.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/driver.h>
+#include <linux/regulator/machine.h>
+
+#include <linux/mfd/da9052/da9052.h>
+#include <linux/mfd/da9052/reg.h>
+#include <linux/mfd/da9052/pdata.h>
+
+/* Buck step size */
+#define DA9052_BUCK_PERI_3uV_STEP		100000
+#define DA9052_BUCK_PERI_REG_MAP_UPTO_3uV	24
+#define DA9052_CONST_3uV			3000000
+
+#define DA9052_MIN_UA		0
+#define DA9052_MAX_UA		3
+#define DA9052_CURRENT_RANGE	4
+
+/* Bit masks */
+#define DA9052_BUCK_ILIM_MASK_EVEN	0x0c
+#define DA9052_BUCK_ILIM_MASK_ODD	0xc0
+
+static const u32 da9052_current_limits[3][4] = {
+	{700000, 800000, 1000000, 1200000},	/* DA9052-BC BUCKs */
+	{1600000, 2000000, 2400000, 3000000},	/* DA9053-AA/Bx BUCK-CORE */
+	{800000, 1000000, 1200000, 1500000},	/* DA9053-AA/Bx BUCK-PRO,
+						 * BUCK-MEM and BUCK-PERI
+						*/
+};
+
+struct da9052_regulator_info {
+	struct regulator_desc reg_desc;
+	int step_uV;
+	int min_uV;
+	int max_uV;
+	unsigned char volt_shift;
+	unsigned char en_bit;
+	unsigned char activate_bit;
+};
+
+struct da9052_regulator {
+	struct da9052 *da9052;
+	struct da9052_regulator_info *info;
+	struct regulator_dev *rdev;
+};
+
+static int verify_range(struct da9052_regulator_info *info,
+			 int min_uV, int max_uV)
+{
+	if (min_uV > info->max_uV || max_uV < info->min_uV)
+		return -EINVAL;
+
+	return 0;
+}
+
+static int da9052_regulator_enable(struct regulator_dev *rdev)
+{
+	struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
+	struct da9052_regulator_info *info = regulator->info;
+	int offset = rdev_get_id(rdev);
+
+	return da9052_reg_update(regulator->da9052,
+				 DA9052_BUCKCORE_REG + offset,
+				 1 << info->en_bit, 1 << info->en_bit);
+}
+
+static int da9052_regulator_disable(struct regulator_dev *rdev)
+{
+	struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
+	struct da9052_regulator_info *info = regulator->info;
+	int offset = rdev_get_id(rdev);
+
+	return da9052_reg_update(regulator->da9052,
+				 DA9052_BUCKCORE_REG + offset,
+				 1 << info->en_bit, 0);
+}
+
+static int da9052_regulator_is_enabled(struct regulator_dev *rdev)
+{
+	struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
+	struct da9052_regulator_info *info = regulator->info;
+	int offset = rdev_get_id(rdev);
+	int ret;
+
+	ret = da9052_reg_read(regulator->da9052, DA9052_BUCKCORE_REG + offset);
+	if (ret < 0)
+		return ret;
+
+	return ret & (1 << info->en_bit);
+}
+
+static int da9052_dcdc_get_current_limit(struct regulator_dev *rdev)
+{
+	struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
+	int offset = rdev_get_id(rdev);
+	int ret, row = 2;
+
+	ret = da9052_reg_read(regulator->da9052, DA9052_BUCKA_REG + offset/2);
+	if (ret < 0)
+		return ret;
+
+	/* Determine the even or odd position of the buck current limit
+	 * register field
+	*/
+	if (offset % 2 == 0)
+		ret = (ret & DA9052_BUCK_ILIM_MASK_EVEN) >> 2;
+	else
+		ret = (ret & DA9052_BUCK_ILIM_MASK_ODD) >> 6;
+
+	/* Select the appropriate current limit range */
+	if (regulator->da9052->chip_id == DA9052)
+		row = 0;
+	else if (offset == 0)
+		row = 1;
+
+	return da9052_current_limits[row][ret];
+}
+
+static int da9052_dcdc_set_current_limit(struct regulator_dev *rdev, int min_uA,
+					  int max_uA)
+{
+	struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
+	int offset = rdev_get_id(rdev);
+	int reg_val = 0;
+	int i, row = 2;
+
+	/* Select the appropriate current limit range */
+	if (regulator->da9052->chip_id == DA9052)
+		row = 0;
+	else if (offset == 0)
+		row = 1;
+
+	if (min_uA > da9052_current_limits[row][DA9052_MAX_UA] ||
+	    max_uA < da9052_current_limits[row][DA9052_MIN_UA])
+		return -EINVAL;
+
+	for (i = 0; i < DA9052_CURRENT_RANGE; i++) {
+		if (min_uA <= da9052_current_limits[row][i]) {
+			reg_val = i;
+			break;
+		}
+	}
+
+	/* Determine the even or odd position of the buck current limit
+	 * register field
+	*/
+	if (offset % 2 == 0)
+		return da9052_reg_update(regulator->da9052,
+					 DA9052_BUCKA_REG + offset/2,
+					 DA9052_BUCK_ILIM_MASK_EVEN,
+					 reg_val << 2);
+	else
+		return da9052_reg_update(regulator->da9052,
+					 DA9052_BUCKA_REG + offset/2,
+					 DA9052_BUCK_ILIM_MASK_ODD,
+					 reg_val << 6);
+}
+
+static int da9052_list_buckperi_voltage(struct regulator_dev *rdev,
+					 unsigned int selector)
+{
+	struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
+	struct da9052_regulator_info *info = regulator->info;
+	int volt_uV;
+
+	if ((regulator->da9052->chip_id == DA9052) &&
+	    (selector >= DA9052_BUCK_PERI_REG_MAP_UPTO_3uV)) {
+		volt_uV = ((DA9052_BUCK_PERI_REG_MAP_UPTO_3uV * info->step_uV)
+			    + info->min_uV);
+		volt_uV += (selector - DA9052_BUCK_PERI_REG_MAP_UPTO_3uV)
+			    * (DA9052_BUCK_PERI_3uV_STEP);
+	} else
+			volt_uV = (selector * info->step_uV) + info->min_uV;
+
+	if (volt_uV > info->max_uV)
+		return -EINVAL;
+
+	return volt_uV;
+}
+
+static int da9052_list_voltage(struct regulator_dev *rdev,
+				unsigned int selector)
+{
+	struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
+	struct da9052_regulator_info *info = regulator->info;
+	int volt_uV;
+
+	volt_uV = info->min_uV + info->step_uV * selector;
+
+	if (volt_uV > info->max_uV)
+		return -EINVAL;
+
+	return volt_uV;
+}
+
+static int da9052_regulator_set_voltage_int(struct regulator_dev *rdev,
+					     int min_uV, int max_uV,
+					     unsigned int *selector)
+{
+	struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
+	struct da9052_regulator_info *info = regulator->info;
+	int offset = rdev_get_id(rdev);
+	int ret;
+
+	ret = verify_range(info, min_uV, max_uV);
+	if (ret < 0)
+		return ret;
+
+	if (min_uV < info->min_uV)
+		min_uV = info->min_uV;
+
+	*selector = (min_uV - info->min_uV) / info->step_uV;
+
+	ret = da9052_list_voltage(rdev, *selector);
+	if (ret < 0)
+		return ret;
+
+	return da9052_reg_update(regulator->da9052,
+				 DA9052_BUCKCORE_REG + offset,
+				 (1 << info->volt_shift) - 1, *selector);
+}
+
+static int da9052_set_ldo_voltage(struct regulator_dev *rdev,
+				   int min_uV, int max_uV,
+				   unsigned int *selector)
+{
+	return da9052_regulator_set_voltage_int(rdev, min_uV, max_uV, selector);
+}
+
+static int da9052_set_ldo5_6_voltage(struct regulator_dev *rdev,
+				      int min_uV, int max_uV,
+				      unsigned int *selector)
+{
+	struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
+	struct da9052_regulator_info *info = regulator->info;
+	int ret;
+
+	ret = da9052_regulator_set_voltage_int(rdev, min_uV, max_uV, selector);
+	if (ret < 0)
+		return ret;
+
+	/* Some LDOs are DVC controlled which requires enabling of
+	 * the LDO activate bit to implment the changes on the
+	 * LDO output.
+	*/
+	return da9052_reg_update(regulator->da9052, DA9052_SUPPLY_REG, 0,
+				 info->activate_bit);
+}
+
+static int da9052_set_dcdc_voltage(struct regulator_dev *rdev,
+				    int min_uV, int max_uV,
+				    unsigned int *selector)
+{
+	struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
+	struct da9052_regulator_info *info = regulator->info;
+	int ret;
+
+	ret = da9052_regulator_set_voltage_int(rdev, min_uV, max_uV, selector);
+	if (ret < 0)
+		return ret;
+
+	/* Some DCDCs are DVC controlled which requires enabling of
+	 * the DCDC activate bit to implment the changes on the
+	 * DCDC output.
+	*/
+	return da9052_reg_update(regulator->da9052, DA9052_SUPPLY_REG, 0,
+				 info->activate_bit);
+}
+
+static int da9052_get_regulator_voltage_sel(struct regulator_dev *rdev)
+{
+	struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
+	struct da9052_regulator_info *info = regulator->info;
+	int offset = rdev_get_id(rdev);
+	int ret;
+
+	ret = da9052_reg_read(regulator->da9052, DA9052_BUCKCORE_REG + offset);
+	if (ret < 0)
+		return ret;
+
+	ret &= ((1 << info->volt_shift) - 1);
+
+	return ret;
+}
+
+static int da9052_set_buckperi_voltage(struct regulator_dev *rdev, int min_uV,
+					int max_uV, unsigned int *selector)
+{
+	struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
+	struct da9052_regulator_info *info = regulator->info;
+	int offset = rdev_get_id(rdev);
+	int ret;
+
+	ret = verify_range(info, min_uV, max_uV);
+	if (ret < 0)
+		return ret;
+
+	if (min_uV < info->min_uV)
+		min_uV = info->min_uV;
+
+	if ((regulator->da9052->chip_id == DA9052) &&
+	    (min_uV >= DA9052_CONST_3uV))
+		*selector = DA9052_BUCK_PERI_REG_MAP_UPTO_3uV +
+			    ((min_uV - DA9052_CONST_3uV) /
+			    (DA9052_BUCK_PERI_3uV_STEP));
+	else
+		*selector = (min_uV - info->min_uV) / info->step_uV;
+
+	ret = da9052_list_buckperi_voltage(rdev, *selector);
+	if (ret < 0)
+		return ret;
+
+	return da9052_reg_update(regulator->da9052,
+				 DA9052_BUCKCORE_REG + offset,
+				 (1 << info->volt_shift) - 1, *selector);
+}
+
+static int da9052_get_buckperi_voltage_sel(struct regulator_dev *rdev)
+{
+	struct da9052_regulator *regulator = rdev_get_drvdata(rdev);
+	struct da9052_regulator_info *info = regulator->info;
+	int offset = rdev_get_id(rdev);
+	int ret;
+
+	ret = da9052_reg_read(regulator->da9052, DA9052_BUCKCORE_REG + offset);
+	if (ret < 0)
+		return ret;
+
+	ret &= ((1 << info->volt_shift) - 1);
+
+	return ret;
+}
+
+static struct regulator_ops da9052_buckperi_ops = {
+	.list_voltage = da9052_list_buckperi_voltage,
+	.get_voltage_sel = da9052_get_buckperi_voltage_sel,
+	.set_voltage = da9052_set_buckperi_voltage,
+
+	.get_current_limit = da9052_dcdc_get_current_limit,
+	.set_current_limit = da9052_dcdc_set_current_limit,
+
+	.is_enabled = da9052_regulator_is_enabled,
+	.enable = da9052_regulator_enable,
+	.disable = da9052_regulator_disable,
+};
+
+static struct regulator_ops da9052_dcdc_ops = {
+	.set_voltage = da9052_set_dcdc_voltage,
+	.get_current_limit = da9052_dcdc_get_current_limit,
+	.set_current_limit = da9052_dcdc_set_current_limit,
+
+	.list_voltage = da9052_list_voltage,
+	.get_voltage_sel = da9052_get_regulator_voltage_sel,
+	.is_enabled = da9052_regulator_is_enabled,
+	.enable = da9052_regulator_enable,
+	.disable = da9052_regulator_disable,
+};
+
+static struct regulator_ops da9052_ldo5_6_ops = {
+	.set_voltage = da9052_set_ldo5_6_voltage,
+
+	.list_voltage = da9052_list_voltage,
+	.get_voltage_sel = da9052_get_regulator_voltage_sel,
+	.is_enabled = da9052_regulator_is_enabled,
+	.enable = da9052_regulator_enable,
+	.disable = da9052_regulator_disable,
+};
+
+static struct regulator_ops da9052_ldo_ops = {
+	.set_voltage = da9052_set_ldo_voltage,
+
+	.list_voltage = da9052_list_voltage,
+	.get_voltage_sel = da9052_get_regulator_voltage_sel,
+	.is_enabled = da9052_regulator_is_enabled,
+	.enable = da9052_regulator_enable,
+	.disable = da9052_regulator_disable,
+};
+
+#define DA9052_LDO5_6(_id, step, min, max, sbits, ebits, abits) \
+{\
+	.reg_desc = {\
+		.name = "LDO" #_id,\
+		.ops = &da9052_ldo5_6_ops,\
+		.type = REGULATOR_VOLTAGE,\
+		.id = _id,\
+		.owner = THIS_MODULE,\
+	},\
+	.min_uV = (min) * 1000,\
+	.max_uV = (max) * 1000,\
+	.step_uV = (step) * 1000,\
+	.volt_shift = (sbits),\
+	.en_bit = (ebits),\
+	.activate_bit = (abits),\
+}
+
+#define DA9052_LDO(_id, step, min, max, sbits, ebits, abits) \
+{\
+	.reg_desc = {\
+		.name = "LDO" #_id,\
+		.ops = &da9052_ldo_ops,\
+		.type = REGULATOR_VOLTAGE,\
+		.id = _id,\
+		.owner = THIS_MODULE,\
+	},\
+	.min_uV = (min) * 1000,\
+	.max_uV = (max) * 1000,\
+	.step_uV = (step) * 1000,\
+	.volt_shift = (sbits),\
+	.en_bit = (ebits),\
+	.activate_bit = (abits),\
+}
+
+#define DA9052_DCDC(_id, step, min, max, sbits, ebits, abits) \
+{\
+	.reg_desc = {\
+		.name = "BUCK" #_id,\
+		.ops = &da9052_dcdc_ops,\
+		.type = REGULATOR_VOLTAGE,\
+		.id = _id,\
+		.owner = THIS_MODULE,\
+	},\
+	.min_uV = (min) * 1000,\
+	.max_uV = (max) * 1000,\
+	.step_uV = (step) * 1000,\
+	.volt_shift = (sbits),\
+	.en_bit = (ebits),\
+	.activate_bit = (abits),\
+}
+
+#define DA9052_BUCKPERI(_id, step, min, max, sbits, ebits, abits) \
+{\
+	.reg_desc = {\
+		.name = "BUCK" #_id,\
+		.ops = &da9052_buckperi_ops,\
+		.type = REGULATOR_VOLTAGE,\
+		.id = _id,\
+		.owner = THIS_MODULE,\
+	},\
+	.min_uV = (min) * 1000,\
+	.max_uV = (max) * 1000,\
+	.step_uV = (step) * 1000,\
+	.volt_shift = (sbits),\
+	.en_bit = (ebits),\
+	.activate_bit = (abits),\
+}
+
+static struct da9052_regulator_info da9052_regulator_info[] = {
+	/* Buck1 - 4 */
+	DA9052_DCDC(0, 25, 500, 2075, 6, 6, DA9052_SUPPLY_VBCOREGO),
+	DA9052_DCDC(1, 25, 500, 2075, 6, 6, DA9052_SUPPLY_VBPROGO),
+	DA9052_DCDC(2, 25, 925, 2500, 6, 6, DA9052_SUPPLY_VBMEMGO),
+	DA9052_BUCKPERI(3, 50, 1800, 3600, 5, 6, 0),
+	/* LD01 - LDO10 */
+	DA9052_LDO(4, 50, 600, 1800, 5, 6, 0),
+	DA9052_LDO5_6(5, 25, 600, 1800, 6, 6, DA9052_SUPPLY_VLDO2GO),
+	DA9052_LDO5_6(6, 25, 1725, 3300, 6, 6, DA9052_SUPPLY_VLDO3GO),
+	DA9052_LDO(7, 25, 1725, 3300, 6, 6, 0),
+	DA9052_LDO(8, 50, 1200, 3600, 6, 6, 0),
+	DA9052_LDO(9, 50, 1200, 3600, 6, 6, 0),
+	DA9052_LDO(10, 50, 1200, 3600, 6, 6, 0),
+	DA9052_LDO(11, 50, 1200, 3600, 6, 6, 0),
+	DA9052_LDO(12, 50, 1250, 3650, 6, 6, 0),
+	DA9052_LDO(13, 50, 1200, 3600, 6, 6, 0),
+};
+
+static struct da9052_regulator_info da9053_regulator_info[] = {
+	/* Buck1 - 4 */
+	DA9052_DCDC(0, 25, 500, 2075, 6, 6, DA9052_SUPPLY_VBCOREGO),
+	DA9052_DCDC(1, 25, 500, 2075, 6, 6, DA9052_SUPPLY_VBPROGO),
+	DA9052_DCDC(2, 25, 925, 2500, 6, 6, DA9052_SUPPLY_VBMEMGO),
+	DA9052_BUCKPERI(3, 25, 925, 2500, 6, 6, 0),
+	/* LD01 - LDO10 */
+	DA9052_LDO(4, 50, 600, 1800, 5, 6, 0),
+	DA9052_LDO5_6(5, 25, 600, 1800, 6, 6, DA9052_SUPPLY_VLDO2GO),
+	DA9052_LDO5_6(6, 25, 1725, 3300, 6, 6, DA9052_SUPPLY_VLDO3GO),
+	DA9052_LDO(7, 25, 1725, 3300, 6, 6, 0),
+	DA9052_LDO(8, 50, 1200, 3600, 6, 6, 0),
+	DA9052_LDO(9, 50, 1200, 3600, 6, 6, 0),
+	DA9052_LDO(10, 50, 1200, 3600, 6, 6, 0),
+	DA9052_LDO(11, 50, 1200, 3600, 6, 6, 0),
+	DA9052_LDO(12, 50, 1250, 3650, 6, 6, 0),
+	DA9052_LDO(13, 50, 1200, 3600, 6, 6, 0),
+};
+
+static inline struct da9052_regulator_info *find_regulator_info(u8 chip_id,
+								 int id)
+{
+	struct da9052_regulator_info *info;
+	int i;
+
+	switch (chip_id) {
+	case DA9052:
+		for (i = 0; i < ARRAY_SIZE(da9052_regulator_info); i++) {
+			info = &da9052_regulator_info[i];
+			if (info->reg_desc.id == id)
+				return info;
+		}
+		break;
+	case DA9053_AA:
+	case DA9053_BA:
+	case DA9053_BB:
+		for (i = 0; i < ARRAY_SIZE(da9053_regulator_info); i++) {
+			info = &da9053_regulator_info[i];
+			if (info->reg_desc.id == id)
+				return info;
+		}
+		break;
+	}
+
+	return NULL;
+}
+
+static int __devinit da9052_regulator_probe(struct platform_device *pdev)
+{
+	struct da9052_regulator *regulator;
+	struct da9052 *da9052;
+	struct da9052_pdata *pdata;
+	int ret;
+
+	regulator = devm_kzalloc(&pdev->dev, sizeof(struct da9052_regulator),
+				 GFP_KERNEL);
+	if (!regulator)
+		return -ENOMEM;
+
+	da9052 = dev_get_drvdata(pdev->dev.parent);
+	pdata = da9052->dev->platform_data;
+	regulator->da9052 = da9052;
+
+	regulator->info = find_regulator_info(regulator->da9052->chip_id,
+					      pdev->id);
+	if (regulator->info == NULL) {
+		dev_err(&pdev->dev, "invalid regulator ID specified\n");
+		ret = -EINVAL;
+		goto err;
+	}
+	regulator->rdev = regulator_register(&regulator->info->reg_desc,
+					     &pdev->dev,
+					     pdata->regulators[pdev->id],
+					     regulator, NULL);
+	if (IS_ERR(regulator->rdev)) {
+		dev_err(&pdev->dev, "failed to register regulator %s\n",
+			regulator->info->reg_desc.name);
+		ret = PTR_ERR(regulator->rdev);
+		goto err;
+	}
+
+	platform_set_drvdata(pdev, regulator);
+
+	return 0;
+err:
+	devm_kfree(&pdev->dev, regulator);
+	return ret;
+}
+
+static int __devexit da9052_regulator_remove(struct platform_device *pdev)
+{
+	struct da9052_regulator *regulator = platform_get_drvdata(pdev);
+
+	regulator_unregister(regulator->rdev);
+	devm_kfree(&pdev->dev, regulator);
+
+	return 0;
+}
+
+static struct platform_driver da9052_regulator_driver = {
+	.probe = da9052_regulator_probe,
+	.remove = __devexit_p(da9052_regulator_remove),
+	.driver = {
+		.name = "da9052-regulator",
+		.owner = THIS_MODULE,
+	},
+};
+
+static int __init da9052_regulator_init(void)
+{
+	return platform_driver_register(&da9052_regulator_driver);
+}
+subsys_initcall(da9052_regulator_init);
+
+static void __exit da9052_regulator_exit(void)
+{
+	platform_driver_unregister(&da9052_regulator_driver);
+}
+module_exit(da9052_regulator_exit);
+
+MODULE_AUTHOR("David Dajun Chen <dchen@diasemi.com>");
+MODULE_DESCRIPTION("Power Regulator driver for Dialog DA9052 PMIC");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:da9052-regulator");
diff --git a/drivers/regulator/db8500-prcmu.c b/drivers/regulator/db8500-prcmu.c
index 78329751af54..515443fcd26b 100644
--- a/drivers/regulator/db8500-prcmu.c
+++ b/drivers/regulator/db8500-prcmu.c
@@ -486,7 +486,7 @@ static int __devinit db8500_regulator_probe(struct platform_device *pdev)
 
 		/* register with the regulator framework */
 		info->rdev = regulator_register(&info->desc, &pdev->dev,
-				init_data, info);
+				init_data, info, NULL);
 		if (IS_ERR(info->rdev)) {
 			err = PTR_ERR(info->rdev);
 			dev_err(&pdev->dev, "failed to register %s: err %i\n",
diff --git a/drivers/regulator/dummy.c b/drivers/regulator/dummy.c
index b8f520513ce7..0ee00de4be72 100644
--- a/drivers/regulator/dummy.c
+++ b/drivers/regulator/dummy.c
@@ -42,7 +42,7 @@ static int __devinit dummy_regulator_probe(struct platform_device *pdev)
 	int ret;
 
 	dummy_regulator_rdev = regulator_register(&dummy_desc, NULL,
-						  &dummy_initdata, NULL);
+						  &dummy_initdata, NULL, NULL);
 	if (IS_ERR(dummy_regulator_rdev)) {
 		ret = PTR_ERR(dummy_regulator_rdev);
 		pr_err("Failed to register regulator: %d\n", ret);
diff --git a/drivers/regulator/fixed.c b/drivers/regulator/fixed.c
index 21ecf212a522..e24e3a174c4b 100644
--- a/drivers/regulator/fixed.c
+++ b/drivers/regulator/fixed.c
@@ -27,6 +27,10 @@
 #include <linux/gpio.h>
 #include <linux/delay.h>
 #include <linux/slab.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
+#include <linux/regulator/of_regulator.h>
+#include <linux/regulator/machine.h>
 
 struct fixed_voltage_data {
 	struct regulator_desc desc;
@@ -38,6 +42,58 @@ struct fixed_voltage_data {
 	bool is_enabled;
 };
 
+
+/**
+ * of_get_fixed_voltage_config - extract fixed_voltage_config structure info
+ * @dev: device requesting for fixed_voltage_config
+ *
+ * Populates fixed_voltage_config structure by extracting data from device
+ * tree node, returns a pointer to the populated structure of NULL if memory
+ * alloc fails.
+ */
+static struct fixed_voltage_config *
+of_get_fixed_voltage_config(struct device *dev)
+{
+	struct fixed_voltage_config *config;
+	struct device_node *np = dev->of_node;
+	const __be32 *delay;
+	struct regulator_init_data *init_data;
+
+	config = devm_kzalloc(dev, sizeof(struct fixed_voltage_config),
+								 GFP_KERNEL);
+	if (!config)
+		return NULL;
+
+	config->init_data = of_get_regulator_init_data(dev, dev->of_node);
+	if (!config->init_data)
+		return NULL;
+
+	init_data = config->init_data;
+	init_data->constraints.apply_uV = 0;
+
+	config->supply_name = init_data->constraints.name;
+	if (init_data->constraints.min_uV == init_data->constraints.max_uV) {
+		config->microvolts = init_data->constraints.min_uV;
+	} else {
+		dev_err(dev,
+			 "Fixed regulator specified with variable voltages\n");
+		return NULL;
+	}
+
+	if (init_data->constraints.boot_on)
+		config->enabled_at_boot = true;
+
+	config->gpio = of_get_named_gpio(np, "gpio", 0);
+	delay = of_get_property(np, "startup-delay-us", NULL);
+	if (delay)
+		config->startup_delay = be32_to_cpu(*delay);
+
+	if (of_find_property(np, "enable-active-high", NULL))
+		config->enable_high = true;
+
+	return config;
+}
+
 static int fixed_voltage_is_enabled(struct regulator_dev *dev)
 {
 	struct fixed_voltage_data *data = rdev_get_drvdata(dev);
@@ -80,7 +136,10 @@ static int fixed_voltage_get_voltage(struct regulator_dev *dev)
 {
 	struct fixed_voltage_data *data = rdev_get_drvdata(dev);
 
-	return data->microvolts;
+	if (data->microvolts)
+		return data->microvolts;
+	else
+		return -EINVAL;
 }
 
 static int fixed_voltage_list_voltage(struct regulator_dev *dev,
@@ -105,10 +164,18 @@ static struct regulator_ops fixed_voltage_ops = {
 
 static int __devinit reg_fixed_voltage_probe(struct platform_device *pdev)
 {
-	struct fixed_voltage_config *config = pdev->dev.platform_data;
+	struct fixed_voltage_config *config;
 	struct fixed_voltage_data *drvdata;
 	int ret;
 
+	if (pdev->dev.of_node)
+		config = of_get_fixed_voltage_config(&pdev->dev);
+	else
+		config = pdev->dev.platform_data;
+
+	if (!config)
+		return -ENOMEM;
+
 	drvdata = kzalloc(sizeof(struct fixed_voltage_data), GFP_KERNEL);
 	if (drvdata == NULL) {
 		dev_err(&pdev->dev, "Failed to allocate device data\n");
@@ -180,7 +247,8 @@ static int __devinit reg_fixed_voltage_probe(struct platform_device *pdev)
 	}
 
 	drvdata->dev = regulator_register(&drvdata->desc, &pdev->dev,
-					  config->init_data, drvdata);
+					  config->init_data, drvdata,
+					  pdev->dev.of_node);
 	if (IS_ERR(drvdata->dev)) {
 		ret = PTR_ERR(drvdata->dev);
 		dev_err(&pdev->dev, "Failed to register regulator: %d\n", ret);
@@ -217,12 +285,23 @@ static int __devexit reg_fixed_voltage_remove(struct platform_device *pdev)
 	return 0;
 }
 
+#if defined(CONFIG_OF)
+static const struct of_device_id fixed_of_match[] __devinitconst = {
+	{ .compatible = "regulator-fixed", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, fixed_of_match);
+#else
+#define fixed_of_match NULL
+#endif
+
 static struct platform_driver regulator_fixed_voltage_driver = {
 	.probe		= reg_fixed_voltage_probe,
 	.remove		= __devexit_p(reg_fixed_voltage_remove),
 	.driver		= {
 		.name		= "reg-fixed-voltage",
 		.owner		= THIS_MODULE,
+		.of_match_table = fixed_of_match,
 	},
 };
 
diff --git a/drivers/regulator/gpio-regulator.c b/drivers/regulator/gpio-regulator.c
index f0acf52498bd..42e1cb1835e5 100644
--- a/drivers/regulator/gpio-regulator.c
+++ b/drivers/regulator/gpio-regulator.c
@@ -284,7 +284,7 @@ static int __devinit gpio_regulator_probe(struct platform_device *pdev)
 	drvdata->state = state;
 
 	drvdata->dev = regulator_register(&drvdata->desc, &pdev->dev,
-					  config->init_data, drvdata);
+					  config->init_data, drvdata, NULL);
 	if (IS_ERR(drvdata->dev)) {
 		ret = PTR_ERR(drvdata->dev);
 		dev_err(&pdev->dev, "Failed to register regulator: %d\n", ret);
diff --git a/drivers/regulator/isl6271a-regulator.c b/drivers/regulator/isl6271a-regulator.c
index e4b3592e8176..c1a456c4257c 100644
--- a/drivers/regulator/isl6271a-regulator.c
+++ b/drivers/regulator/isl6271a-regulator.c
@@ -170,7 +170,7 @@ static int __devinit isl6271a_probe(struct i2c_client *i2c,
 
 	for (i = 0; i < 3; i++) {
 		pmic->rdev[i] = regulator_register(&isl_rd[i], &i2c->dev,
-						init_data, pmic);
+						init_data, pmic, NULL);
 		if (IS_ERR(pmic->rdev[i])) {
 			dev_err(&i2c->dev, "failed to register %s\n", id->name);
 			err = PTR_ERR(pmic->rdev[i]);
diff --git a/drivers/regulator/lp3971.c b/drivers/regulator/lp3971.c
index 72b16b5f3db6..0cfabd318a59 100644
--- a/drivers/regulator/lp3971.c
+++ b/drivers/regulator/lp3971.c
@@ -451,7 +451,7 @@ static int __devinit setup_regulators(struct lp3971 *lp3971,
 	for (i = 0; i < pdata->num_regulators; i++) {
 		struct lp3971_regulator_subdev *reg = &pdata->regulators[i];
 		lp3971->rdev[i] = regulator_register(&regulators[reg->id],
-					lp3971->dev, reg->initdata, lp3971);
+				lp3971->dev, reg->initdata, lp3971, NULL);
 
 		if (IS_ERR(lp3971->rdev[i])) {
 			err = PTR_ERR(lp3971->rdev[i]);
diff --git a/drivers/regulator/lp3972.c b/drivers/regulator/lp3972.c
index fbc5e3741bef..49a15eefe5fe 100644
--- a/drivers/regulator/lp3972.c
+++ b/drivers/regulator/lp3972.c
@@ -555,7 +555,7 @@ static int __devinit setup_regulators(struct lp3972 *lp3972,
 	for (i = 0; i < pdata->num_regulators; i++) {
 		struct lp3972_regulator_subdev *reg = &pdata->regulators[i];
 		lp3972->rdev[i] = regulator_register(&regulators[reg->id],
-					lp3972->dev, reg->initdata, lp3972);
+				lp3972->dev, reg->initdata, lp3972, NULL);
 
 		if (IS_ERR(lp3972->rdev[i])) {
 			err = PTR_ERR(lp3972->rdev[i]);
diff --git a/drivers/regulator/max1586.c b/drivers/regulator/max1586.c
index 3f49512c5134..40e7a4db2853 100644
--- a/drivers/regulator/max1586.c
+++ b/drivers/regulator/max1586.c
@@ -214,7 +214,7 @@ static int __devinit max1586_pmic_probe(struct i2c_client *client,
 		}
 		rdev[i] = regulator_register(&max1586_reg[id], &client->dev,
 					     pdata->subdevs[i].platform_data,
-					     max1586);
+					     max1586, NULL);
 		if (IS_ERR(rdev[i])) {
 			ret = PTR_ERR(rdev[i]);
 			dev_err(&client->dev, "failed to register %s\n",
diff --git a/drivers/regulator/max8649.c b/drivers/regulator/max8649.c
index 1062cf9f02dc..b06a2399587c 100644
--- a/drivers/regulator/max8649.c
+++ b/drivers/regulator/max8649.c
@@ -16,6 +16,7 @@
 #include <linux/regulator/driver.h>
 #include <linux/slab.h>
 #include <linux/regulator/max8649.h>
+#include <linux/regmap.h>
 
 #define MAX8649_DCDC_VMIN	750000		/* uV */
 #define MAX8649_DCDC_VMAX	1380000		/* uV */
@@ -49,9 +50,8 @@
 
 struct max8649_regulator_info {
 	struct regulator_dev	*regulator;
-	struct i2c_client	*i2c;
 	struct device		*dev;
-	struct mutex		io_lock;
+	struct regmap		*regmap;
 
 	int		vol_reg;
 	unsigned	mode:2;	/* bit[1:0] = VID1, VID0 */
@@ -63,71 +63,6 @@ struct max8649_regulator_info {
 
 /* I2C operations */
 
-static inline int max8649_read_device(struct i2c_client *i2c,
-				      int reg, int bytes, void *dest)
-{
-	unsigned char data;
-	int ret;
-
-	data = (unsigned char)reg;
-	ret = i2c_master_send(i2c, &data, 1);
-	if (ret < 0)
-		return ret;
-	ret = i2c_master_recv(i2c, dest, bytes);
-	if (ret < 0)
-		return ret;
-	return 0;
-}
-
-static inline int max8649_write_device(struct i2c_client *i2c,
-				       int reg, int bytes, void *src)
-{
-	unsigned char buf[bytes + 1];
-	int ret;
-
-	buf[0] = (unsigned char)reg;
-	memcpy(&buf[1], src, bytes);
-
-	ret = i2c_master_send(i2c, buf, bytes + 1);
-	if (ret < 0)
-		return ret;
-	return 0;
-}
-
-static int max8649_reg_read(struct i2c_client *i2c, int reg)
-{
-	struct max8649_regulator_info *info = i2c_get_clientdata(i2c);
-	unsigned char data;
-	int ret;
-
-	mutex_lock(&info->io_lock);
-	ret = max8649_read_device(i2c, reg, 1, &data);
-	mutex_unlock(&info->io_lock);
-
-	if (ret < 0)
-		return ret;
-	return (int)data;
-}
-
-static int max8649_set_bits(struct i2c_client *i2c, int reg,
-			    unsigned char mask, unsigned char data)
-{
-	struct max8649_regulator_info *info = i2c_get_clientdata(i2c);
-	unsigned char value;
-	int ret;
-
-	mutex_lock(&info->io_lock);
-	ret = max8649_read_device(i2c, reg, 1, &value);
-	if (ret < 0)
-		goto out;
-	value &= ~mask;
-	value |= data;
-	ret = max8649_write_device(i2c, reg, 1, &value);
-out:
-	mutex_unlock(&info->io_lock);
-	return ret;
-}
-
 static inline int check_range(int min_uV, int max_uV)
 {
 	if ((min_uV < MAX8649_DCDC_VMIN) || (max_uV > MAX8649_DCDC_VMAX)
@@ -144,13 +79,14 @@ static int max8649_list_voltage(struct regulator_dev *rdev, unsigned index)
 static int max8649_get_voltage(struct regulator_dev *rdev)
 {
 	struct max8649_regulator_info *info = rdev_get_drvdata(rdev);
+	unsigned int val;
 	unsigned char data;
 	int ret;
 
-	ret = max8649_reg_read(info->i2c, info->vol_reg);
-	if (ret < 0)
+	ret = regmap_read(info->regmap, info->vol_reg, &val);
+	if (ret != 0)
 		return ret;
-	data = (unsigned char)ret & MAX8649_VOL_MASK;
+	data = (unsigned char)val & MAX8649_VOL_MASK;
 	return max8649_list_voltage(rdev, data);
 }
 
@@ -170,14 +106,14 @@ static int max8649_set_voltage(struct regulator_dev *rdev,
 	mask = MAX8649_VOL_MASK;
 	*selector = data & mask;
 
-	return max8649_set_bits(info->i2c, info->vol_reg, mask, data);
+	return regmap_update_bits(info->regmap, info->vol_reg, mask, data);
 }
 
 /* EN_PD means pulldown on EN input */
 static int max8649_enable(struct regulator_dev *rdev)
 {
 	struct max8649_regulator_info *info = rdev_get_drvdata(rdev);
-	return max8649_set_bits(info->i2c, MAX8649_CONTROL, MAX8649_EN_PD, 0);
+	return regmap_update_bits(info->regmap, MAX8649_CONTROL, MAX8649_EN_PD, 0);
 }
 
 /*
@@ -187,38 +123,40 @@ static int max8649_enable(struct regulator_dev *rdev)
 static int max8649_disable(struct regulator_dev *rdev)
 {
 	struct max8649_regulator_info *info = rdev_get_drvdata(rdev);
-	return max8649_set_bits(info->i2c, MAX8649_CONTROL, MAX8649_EN_PD,
+	return regmap_update_bits(info->regmap, MAX8649_CONTROL, MAX8649_EN_PD,
 				MAX8649_EN_PD);
 }
 
 static int max8649_is_enabled(struct regulator_dev *rdev)
 {
 	struct max8649_regulator_info *info = rdev_get_drvdata(rdev);
+	unsigned int val;
 	int ret;
 
-	ret = max8649_reg_read(info->i2c, MAX8649_CONTROL);
-	if (ret < 0)
+	ret = regmap_read(info->regmap, MAX8649_CONTROL, &val);
+	if (ret != 0)
 		return ret;
-	return !((unsigned char)ret & MAX8649_EN_PD);
+	return !((unsigned char)val & MAX8649_EN_PD);
 }
 
 static int max8649_enable_time(struct regulator_dev *rdev)
 {
 	struct max8649_regulator_info *info = rdev_get_drvdata(rdev);
 	int voltage, rate, ret;
+	unsigned int val;
 
 	/* get voltage */
-	ret = max8649_reg_read(info->i2c, info->vol_reg);
-	if (ret < 0)
+	ret = regmap_read(info->regmap, info->vol_reg, &val);
+	if (ret != 0)
 		return ret;
-	ret &= MAX8649_VOL_MASK;
+	val &= MAX8649_VOL_MASK;
 	voltage = max8649_list_voltage(rdev, (unsigned char)ret); /* uV */
 
 	/* get rate */
-	ret = max8649_reg_read(info->i2c, MAX8649_RAMP);
-	if (ret < 0)
+	ret = regmap_read(info->regmap, MAX8649_RAMP, &val);
+	if (ret != 0)
 		return ret;
-	ret = (ret & MAX8649_RAMP_MASK) >> 5;
+	ret = (val & MAX8649_RAMP_MASK) >> 5;
 	rate = (32 * 1000) >> ret;	/* uV/uS */
 
 	return DIV_ROUND_UP(voltage, rate);
@@ -230,12 +168,12 @@ static int max8649_set_mode(struct regulator_dev *rdev, unsigned int mode)
 
 	switch (mode) {
 	case REGULATOR_MODE_FAST:
-		max8649_set_bits(info->i2c, info->vol_reg, MAX8649_FORCE_PWM,
-				 MAX8649_FORCE_PWM);
+		regmap_update_bits(info->regmap, info->vol_reg, MAX8649_FORCE_PWM,
+				   MAX8649_FORCE_PWM);
 		break;
 	case REGULATOR_MODE_NORMAL:
-		max8649_set_bits(info->i2c, info->vol_reg,
-				 MAX8649_FORCE_PWM, 0);
+		regmap_update_bits(info->regmap, info->vol_reg,
+				   MAX8649_FORCE_PWM, 0);
 		break;
 	default:
 		return -EINVAL;
@@ -246,10 +184,13 @@ static int max8649_set_mode(struct regulator_dev *rdev, unsigned int mode)
 static unsigned int max8649_get_mode(struct regulator_dev *rdev)
 {
 	struct max8649_regulator_info *info = rdev_get_drvdata(rdev);
+	unsigned int val;
 	int ret;
 
-	ret = max8649_reg_read(info->i2c, info->vol_reg);
-	if (ret & MAX8649_FORCE_PWM)
+	ret = regmap_read(info->regmap, info->vol_reg, &val);
+	if (ret != 0)
+		return ret;
+	if (val & MAX8649_FORCE_PWM)
 		return REGULATOR_MODE_FAST;
 	return REGULATOR_MODE_NORMAL;
 }
@@ -275,11 +216,17 @@ static struct regulator_desc dcdc_desc = {
 	.owner		= THIS_MODULE,
 };
 
+static struct regmap_config max8649_regmap_config = {
+	.reg_bits = 8,
+	.val_bits = 8,
+};
+
 static int __devinit max8649_regulator_probe(struct i2c_client *client,
 					     const struct i2c_device_id *id)
 {
 	struct max8649_platform_data *pdata = client->dev.platform_data;
 	struct max8649_regulator_info *info = NULL;
+	unsigned int val;
 	unsigned char data;
 	int ret;
 
@@ -289,9 +236,14 @@ static int __devinit max8649_regulator_probe(struct i2c_client *client,
 		return -ENOMEM;
 	}
 
-	info->i2c = client;
+	info->regmap = regmap_init_i2c(client, &max8649_regmap_config);
+	if (IS_ERR(info->regmap)) {
+		ret = PTR_ERR(info->regmap);
+		dev_err(&client->dev, "Failed to allocate register map: %d\n", ret);
+		goto fail;
+	}
+
 	info->dev = &client->dev;
-	mutex_init(&info->io_lock);
 	i2c_set_clientdata(client, info);
 
 	info->mode = pdata->mode;
@@ -312,8 +264,8 @@ static int __devinit max8649_regulator_probe(struct i2c_client *client,
 		break;
 	}
 
-	ret = max8649_reg_read(info->i2c, MAX8649_CHIP_ID1);
-	if (ret < 0) {
+	ret = regmap_read(info->regmap, MAX8649_CHIP_ID1, &val);
+	if (ret != 0) {
 		dev_err(info->dev, "Failed to detect ID of MAX8649:%d\n",
 			ret);
 		goto out;
@@ -321,33 +273,33 @@ static int __devinit max8649_regulator_probe(struct i2c_client *client,
 	dev_info(info->dev, "Detected MAX8649 (ID:%x)\n", ret);
 
 	/* enable VID0 & VID1 */
-	max8649_set_bits(info->i2c, MAX8649_CONTROL, MAX8649_VID_MASK, 0);
+	regmap_update_bits(info->regmap, MAX8649_CONTROL, MAX8649_VID_MASK, 0);
 
 	/* enable/disable external clock synchronization */
 	info->extclk = pdata->extclk;
 	data = (info->extclk) ? MAX8649_SYNC_EXTCLK : 0;
-	max8649_set_bits(info->i2c, info->vol_reg, MAX8649_SYNC_EXTCLK, data);
+	regmap_update_bits(info->regmap, info->vol_reg, MAX8649_SYNC_EXTCLK, data);
 	if (info->extclk) {
 		/* set external clock frequency */
 		info->extclk_freq = pdata->extclk_freq;
-		max8649_set_bits(info->i2c, MAX8649_SYNC, MAX8649_EXT_MASK,
-				 info->extclk_freq << 6);
+		regmap_update_bits(info->regmap, MAX8649_SYNC, MAX8649_EXT_MASK,
+				   info->extclk_freq << 6);
 	}
 
 	if (pdata->ramp_timing) {
 		info->ramp_timing = pdata->ramp_timing;
-		max8649_set_bits(info->i2c, MAX8649_RAMP, MAX8649_RAMP_MASK,
-				 info->ramp_timing << 5);
+		regmap_update_bits(info->regmap, MAX8649_RAMP, MAX8649_RAMP_MASK,
+				   info->ramp_timing << 5);
 	}
 
 	info->ramp_down = pdata->ramp_down;
 	if (info->ramp_down) {
-		max8649_set_bits(info->i2c, MAX8649_RAMP, MAX8649_RAMP_DOWN,
-				 MAX8649_RAMP_DOWN);
+		regmap_update_bits(info->regmap, MAX8649_RAMP, MAX8649_RAMP_DOWN,
+				   MAX8649_RAMP_DOWN);
 	}
 
 	info->regulator = regulator_register(&dcdc_desc, &client->dev,
-					     pdata->regulator, info);
+					     pdata->regulator, info, NULL);
 	if (IS_ERR(info->regulator)) {
 		dev_err(info->dev, "failed to register regulator %s\n",
 			dcdc_desc.name);
@@ -358,6 +310,8 @@ static int __devinit max8649_regulator_probe(struct i2c_client *client,
 	dev_info(info->dev, "Max8649 regulator device is detected.\n");
 	return 0;
 out:
+	regmap_exit(info->regmap);
+fail:
 	kfree(info);
 	return ret;
 }
@@ -369,6 +323,7 @@ static int __devexit max8649_regulator_remove(struct i2c_client *client)
 	if (info) {
 		if (info->regulator)
 			regulator_unregister(info->regulator);
+		regmap_exit(info->regmap);
 		kfree(info);
 	}
 
diff --git a/drivers/regulator/max8660.c b/drivers/regulator/max8660.c
index 33f5d9a492ef..a838e664569f 100644
--- a/drivers/regulator/max8660.c
+++ b/drivers/regulator/max8660.c
@@ -449,7 +449,7 @@ static int __devinit max8660_probe(struct i2c_client *client,
 
 		rdev[i] = regulator_register(&max8660_reg[id], &client->dev,
 					     pdata->subdevs[i].platform_data,
-					     max8660);
+					     max8660, NULL);
 		if (IS_ERR(rdev[i])) {
 			ret = PTR_ERR(rdev[i]);
 			dev_err(&client->dev, "failed to register %s\n",
diff --git a/drivers/regulator/max8925-regulator.c b/drivers/regulator/max8925-regulator.c
index cc9ec0e03271..cc290d37c463 100644
--- a/drivers/regulator/max8925-regulator.c
+++ b/drivers/regulator/max8925-regulator.c
@@ -24,9 +24,13 @@
 #define SD1_DVM_SHIFT		5		/* SDCTL1 bit5 */
 #define SD1_DVM_EN		6		/* SDV1 bit 6 */
 
-/* bit definitions in SD & LDO control registers */
-#define OUT_ENABLE   		0x1f		/* Power U/D sequence as I2C */
-#define OUT_DISABLE		0x1e		/* Power U/D sequence as I2C */
+/* bit definitions in LDO control registers */
+#define LDO_SEQ_I2C		0x7		/* Power U/D by i2c */
+#define LDO_SEQ_MASK		0x7		/* Power U/D sequence mask */
+#define LDO_SEQ_SHIFT		2		/* Power U/D sequence offset */
+#define LDO_I2C_EN		0x1		/* Enable by i2c */
+#define LDO_I2C_EN_MASK		0x1		/* Enable mask by i2c */
+#define LDO_I2C_EN_SHIFT	0		/* Enable offset by i2c */
 
 struct max8925_regulator_info {
 	struct regulator_desc	desc;
@@ -40,7 +44,6 @@ struct max8925_regulator_info {
 	int	vol_reg;
 	int	vol_shift;
 	int	vol_nbits;
-	int	enable_bit;
 	int	enable_reg;
 };
 
@@ -98,8 +101,10 @@ static int max8925_enable(struct regulator_dev *rdev)
 	struct max8925_regulator_info *info = rdev_get_drvdata(rdev);
 
 	return max8925_set_bits(info->i2c, info->enable_reg,
-				OUT_ENABLE << info->enable_bit,
-				OUT_ENABLE << info->enable_bit);
+				LDO_SEQ_MASK << LDO_SEQ_SHIFT |
+				LDO_I2C_EN_MASK << LDO_I2C_EN_SHIFT,
+				LDO_SEQ_I2C << LDO_SEQ_SHIFT |
+				LDO_I2C_EN << LDO_I2C_EN_SHIFT);
 }
 
 static int max8925_disable(struct regulator_dev *rdev)
@@ -107,20 +112,24 @@ static int max8925_disable(struct regulator_dev *rdev)
 	struct max8925_regulator_info *info = rdev_get_drvdata(rdev);
 
 	return max8925_set_bits(info->i2c, info->enable_reg,
-				OUT_ENABLE << info->enable_bit,
-				OUT_DISABLE << info->enable_bit);
+				LDO_SEQ_MASK << LDO_SEQ_SHIFT |
+				LDO_I2C_EN_MASK << LDO_I2C_EN_SHIFT,
+				LDO_SEQ_I2C << LDO_SEQ_SHIFT);
 }
 
 static int max8925_is_enabled(struct regulator_dev *rdev)
 {
 	struct max8925_regulator_info *info = rdev_get_drvdata(rdev);
-	int ret;
+	int ldo_seq, ret;
 
 	ret = max8925_reg_read(info->i2c, info->enable_reg);
 	if (ret < 0)
 		return ret;
-
-	return ret & (1 << info->enable_bit);
+	ldo_seq = (ret >> LDO_SEQ_SHIFT) & LDO_SEQ_MASK;
+	if (ldo_seq != LDO_SEQ_I2C)
+		return 1;
+	else
+		return ret & (LDO_I2C_EN_MASK << LDO_I2C_EN_SHIFT);
 }
 
 static int max8925_set_dvm_voltage(struct regulator_dev *rdev, int uV)
@@ -188,7 +197,6 @@ static struct regulator_ops max8925_regulator_ldo_ops = {
 	.vol_shift	= 0,					\
 	.vol_nbits	= 6,					\
 	.enable_reg	= MAX8925_SDCTL##_id,			\
-	.enable_bit	= 0,					\
 }
 
 #define MAX8925_LDO(_id, min, max, step)			\
@@ -207,7 +215,6 @@ static struct regulator_ops max8925_regulator_ldo_ops = {
 	.vol_shift	= 0,					\
 	.vol_nbits	= 6,					\
 	.enable_reg	= MAX8925_LDOCTL##_id,			\
-	.enable_bit	= 0,					\
 }
 
 static struct max8925_regulator_info max8925_regulator_info[] = {
@@ -266,7 +273,7 @@ static int __devinit max8925_regulator_probe(struct platform_device *pdev)
 	ri->chip = chip;
 
 	rdev = regulator_register(&ri->desc, &pdev->dev,
-				  pdata->regulator[pdev->id], ri);
+				  pdata->regulator[pdev->id], ri, NULL);
 	if (IS_ERR(rdev)) {
 		dev_err(&pdev->dev, "failed to register regulator %s\n",
 				ri->desc.name);
diff --git a/drivers/regulator/max8952.c b/drivers/regulator/max8952.c
index 3883d85c5b88..75d89400c123 100644
--- a/drivers/regulator/max8952.c
+++ b/drivers/regulator/max8952.c
@@ -208,7 +208,7 @@ static int __devinit max8952_pmic_probe(struct i2c_client *client,
 	max8952->pdata = pdata;
 
 	max8952->rdev = regulator_register(&regulator, max8952->dev,
-			&pdata->reg_data, max8952);
+			&pdata->reg_data, max8952, NULL);
 
 	if (IS_ERR(max8952->rdev)) {
 		ret = PTR_ERR(max8952->rdev);
diff --git a/drivers/regulator/max8997.c b/drivers/regulator/max8997.c
index 6176129a27e5..d26e8646277b 100644
--- a/drivers/regulator/max8997.c
+++ b/drivers/regulator/max8997.c
@@ -1146,7 +1146,7 @@ static __devinit int max8997_pmic_probe(struct platform_device *pdev)
 			regulators[id].n_voltages = 16;
 
 		rdev[i] = regulator_register(&regulators[id], max8997->dev,
-				pdata->regulators[i].initdata, max8997);
+				pdata->regulators[i].initdata, max8997, NULL);
 		if (IS_ERR(rdev[i])) {
 			ret = PTR_ERR(rdev[i]);
 			dev_err(max8997->dev, "regulator init failed for %d\n",
diff --git a/drivers/regulator/max8998.c b/drivers/regulator/max8998.c
index 41a1495eec2b..2d38c2493a07 100644
--- a/drivers/regulator/max8998.c
+++ b/drivers/regulator/max8998.c
@@ -847,7 +847,7 @@ static __devinit int max8998_pmic_probe(struct platform_device *pdev)
 			regulators[index].n_voltages = count;
 		}
 		rdev[i] = regulator_register(&regulators[index], max8998->dev,
-				pdata->regulators[i].initdata, max8998);
+				pdata->regulators[i].initdata, max8998, NULL);
 		if (IS_ERR(rdev[i])) {
 			ret = PTR_ERR(rdev[i]);
 			dev_err(max8998->dev, "regulator init failed\n");
diff --git a/drivers/regulator/mc13783-regulator.c b/drivers/regulator/mc13783-regulator.c
index 8479082e1aea..8e9b90ad88ae 100644
--- a/drivers/regulator/mc13783-regulator.c
+++ b/drivers/regulator/mc13783-regulator.c
@@ -344,7 +344,7 @@ static int __devinit mc13783_regulator_probe(struct platform_device *pdev)
 
 	dev_dbg(&pdev->dev, "%s id %d\n", __func__, pdev->id);
 
-	priv = kzalloc(sizeof(*priv) +
+	priv = devm_kzalloc(&pdev->dev, sizeof(*priv) +
 			pdata->num_regulators * sizeof(priv->regulators[0]),
 			GFP_KERNEL);
 	if (!priv)
@@ -357,7 +357,7 @@ static int __devinit mc13783_regulator_probe(struct platform_device *pdev)
 		init_data = &pdata->regulators[i];
 		priv->regulators[i] = regulator_register(
 				&mc13783_regulators[init_data->id].desc,
-				&pdev->dev, init_data->init_data, priv);
+				&pdev->dev, init_data->init_data, priv, NULL);
 
 		if (IS_ERR(priv->regulators[i])) {
 			dev_err(&pdev->dev, "failed to register regulator %s\n",
@@ -374,8 +374,6 @@ err:
 	while (--i >= 0)
 		regulator_unregister(priv->regulators[i]);
 
-	kfree(priv);
-
 	return ret;
 }
 
@@ -391,7 +389,6 @@ static int __devexit mc13783_regulator_remove(struct platform_device *pdev)
 	for (i = 0; i < pdata->num_regulators; i++)
 		regulator_unregister(priv->regulators[i]);
 
-	kfree(priv);
 	return 0;
 }
 
diff --git a/drivers/regulator/mc13892-regulator.c b/drivers/regulator/mc13892-regulator.c
index 023d17d022cf..e8cfc99dd8f0 100644
--- a/drivers/regulator/mc13892-regulator.c
+++ b/drivers/regulator/mc13892-regulator.c
@@ -527,18 +527,27 @@ static int __devinit mc13892_regulator_probe(struct platform_device *pdev)
 	struct mc13xxx *mc13892 = dev_get_drvdata(pdev->dev.parent);
 	struct mc13xxx_regulator_platform_data *pdata =
 		dev_get_platdata(&pdev->dev);
-	struct mc13xxx_regulator_init_data *init_data;
+	struct mc13xxx_regulator_init_data *mc13xxx_data;
 	int i, ret;
+	int num_regulators = 0;
 	u32 val;
 
-	priv = kzalloc(sizeof(*priv) +
-		pdata->num_regulators * sizeof(priv->regulators[0]),
+	num_regulators = mc13xxx_get_num_regulators_dt(pdev);
+	if (num_regulators <= 0 && pdata)
+		num_regulators = pdata->num_regulators;
+	if (num_regulators <= 0)
+		return -EINVAL;
+
+	priv = devm_kzalloc(&pdev->dev, sizeof(*priv) +
+		num_regulators * sizeof(priv->regulators[0]),
 		GFP_KERNEL);
 	if (!priv)
 		return -ENOMEM;
 
+	priv->num_regulators = num_regulators;
 	priv->mc13xxx_regulators = mc13892_regulators;
 	priv->mc13xxx = mc13892;
+	platform_set_drvdata(pdev, priv);
 
 	mc13xxx_lock(mc13892);
 	ret = mc13xxx_reg_read(mc13892, MC13892_REVISION, &val);
@@ -569,11 +578,27 @@ static int __devinit mc13892_regulator_probe(struct platform_device *pdev)
 		= mc13892_vcam_set_mode;
 	mc13892_regulators[MC13892_VCAM].desc.ops->get_mode
 		= mc13892_vcam_get_mode;
-	for (i = 0; i < pdata->num_regulators; i++) {
-		init_data = &pdata->regulators[i];
+
+	mc13xxx_data = mc13xxx_parse_regulators_dt(pdev, mc13892_regulators,
+					ARRAY_SIZE(mc13892_regulators));
+	for (i = 0; i < num_regulators; i++) {
+		struct regulator_init_data *init_data;
+		struct regulator_desc *desc;
+		struct device_node *node = NULL;
+		int id;
+
+		if (mc13xxx_data) {
+			id = mc13xxx_data[i].id;
+			init_data = mc13xxx_data[i].init_data;
+			node = mc13xxx_data[i].node;
+		} else {
+			id = pdata->regulators[i].id;
+			init_data = pdata->regulators[i].init_data;
+		}
+		desc = &mc13892_regulators[id].desc;
+
 		priv->regulators[i] = regulator_register(
-			&mc13892_regulators[init_data->id].desc,
-			&pdev->dev, init_data->init_data, priv);
+			desc, &pdev->dev, init_data, priv, node);
 
 		if (IS_ERR(priv->regulators[i])) {
 			dev_err(&pdev->dev, "failed to register regulator %s\n",
@@ -583,8 +608,6 @@ static int __devinit mc13892_regulator_probe(struct platform_device *pdev)
 		}
 	}
 
-	platform_set_drvdata(pdev, priv);
-
 	return 0;
 err:
 	while (--i >= 0)
@@ -592,7 +615,6 @@ err:
 
 err_free:
 	mc13xxx_unlock(mc13892);
-	kfree(priv);
 
 	return ret;
 }
@@ -600,16 +622,13 @@ err_free:
 static int __devexit mc13892_regulator_remove(struct platform_device *pdev)
 {
 	struct mc13xxx_regulator_priv *priv = platform_get_drvdata(pdev);
-	struct mc13xxx_regulator_platform_data *pdata =
-		dev_get_platdata(&pdev->dev);
 	int i;
 
 	platform_set_drvdata(pdev, NULL);
 
-	for (i = 0; i < pdata->num_regulators; i++)
+	for (i = 0; i < priv->num_regulators; i++)
 		regulator_unregister(priv->regulators[i]);
 
-	kfree(priv);
 	return 0;
 }
 
diff --git a/drivers/regulator/mc13xxx-regulator-core.c b/drivers/regulator/mc13xxx-regulator-core.c
index 6532853a6ef5..80ecafef1bc3 100644
--- a/drivers/regulator/mc13xxx-regulator-core.c
+++ b/drivers/regulator/mc13xxx-regulator-core.c
@@ -18,12 +18,14 @@
 #include <linux/mfd/mc13xxx.h>
 #include <linux/regulator/machine.h>
 #include <linux/regulator/driver.h>
+#include <linux/regulator/of_regulator.h>
 #include <linux/platform_device.h>
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/err.h>
 #include <linux/module.h>
+#include <linux/of.h>
 #include "mc13xxx.h"
 
 static int mc13xxx_regulator_enable(struct regulator_dev *rdev)
@@ -236,6 +238,61 @@ int mc13xxx_sw_regulator_is_enabled(struct regulator_dev *rdev)
 }
 EXPORT_SYMBOL_GPL(mc13xxx_sw_regulator_is_enabled);
 
+#ifdef CONFIG_OF
+int __devinit mc13xxx_get_num_regulators_dt(struct platform_device *pdev)
+{
+	struct device_node *parent, *child;
+	int num = 0;
+
+	of_node_get(pdev->dev.parent->of_node);
+	parent = of_find_node_by_name(pdev->dev.parent->of_node, "regulators");
+	if (!parent)
+		return -ENODEV;
+
+	for_each_child_of_node(parent, child)
+		num++;
+
+	return num;
+}
+
+struct mc13xxx_regulator_init_data * __devinit mc13xxx_parse_regulators_dt(
+	struct platform_device *pdev, struct mc13xxx_regulator *regulators,
+	int num_regulators)
+{
+	struct mc13xxx_regulator_priv *priv = platform_get_drvdata(pdev);
+	struct mc13xxx_regulator_init_data *data, *p;
+	struct device_node *parent, *child;
+	int i;
+
+	of_node_get(pdev->dev.parent->of_node);
+	parent = of_find_node_by_name(pdev->dev.parent->of_node, "regulators");
+	if (!parent)
+		return NULL;
+
+	data = devm_kzalloc(&pdev->dev, sizeof(*data) * priv->num_regulators,
+			    GFP_KERNEL);
+	if (!data)
+		return NULL;
+	p = data;
+
+	for_each_child_of_node(parent, child) {
+		for (i = 0; i < num_regulators; i++) {
+			if (!of_node_cmp(child->name,
+					 regulators[i].desc.name)) {
+				p->id = i;
+				p->init_data = of_get_regulator_init_data(
+							&pdev->dev, child);
+				p->node = child;
+				p++;
+				break;
+			}
+		}
+	}
+
+	return data;
+}
+#endif
+
 MODULE_LICENSE("GPL v2");
 MODULE_AUTHOR("Yong Shen <yong.shen@linaro.org>");
 MODULE_DESCRIPTION("Regulator Driver for Freescale MC13xxx PMIC");
diff --git a/drivers/regulator/mc13xxx.h b/drivers/regulator/mc13xxx.h
index 27758267e122..b3961c658b05 100644
--- a/drivers/regulator/mc13xxx.h
+++ b/drivers/regulator/mc13xxx.h
@@ -29,6 +29,7 @@ struct mc13xxx_regulator_priv {
 	struct mc13xxx *mc13xxx;
 	u32 powermisc_pwgt_state;
 	struct mc13xxx_regulator *mc13xxx_regulators;
+	int num_regulators;
 	struct regulator_dev *regulators[];
 };
 
@@ -42,13 +43,32 @@ extern int mc13xxx_fixed_regulator_set_voltage(struct regulator_dev *rdev,
 		int min_uV, int max_uV, unsigned *selector);
 extern int mc13xxx_fixed_regulator_get_voltage(struct regulator_dev *rdev);
 
+#ifdef CONFIG_OF
+extern int mc13xxx_get_num_regulators_dt(struct platform_device *pdev);
+extern struct mc13xxx_regulator_init_data *mc13xxx_parse_regulators_dt(
+	struct platform_device *pdev, struct mc13xxx_regulator *regulators,
+	int num_regulators);
+#else
+static inline int mc13xxx_get_num_regulators_dt(struct platform_device *pdev)
+{
+	return -ENODEV;
+}
+
+static inline struct mc13xxx_regulator_init_data *mc13xxx_parse_regulators_dt(
+	struct platform_device *pdev, struct mc13xxx_regulator *regulators,
+	int num_regulators)
+{
+	return NULL;
+}
+#endif
+
 extern struct regulator_ops mc13xxx_regulator_ops;
 extern struct regulator_ops mc13xxx_fixed_regulator_ops;
 
 #define MC13xxx_DEFINE(prefix, _name, _reg, _vsel_reg, _voltages, _ops)	\
 	[prefix ## _name] = {				\
 		.desc = {						\
-			.name = #prefix "_" #_name,			\
+			.name = #_name,					\
 			.n_voltages = ARRAY_SIZE(_voltages),		\
 			.ops = &_ops,			\
 			.type = REGULATOR_VOLTAGE,			\
@@ -66,7 +86,7 @@ extern struct regulator_ops mc13xxx_fixed_regulator_ops;
 #define MC13xxx_FIXED_DEFINE(prefix, _name, _reg, _voltages, _ops)	\
 	[prefix ## _name] = {				\
 		.desc = {						\
-			.name = #prefix "_" #_name,			\
+			.name = #_name,					\
 			.n_voltages = ARRAY_SIZE(_voltages),		\
 			.ops = &_ops,		\
 			.type = REGULATOR_VOLTAGE,			\
@@ -81,7 +101,7 @@ extern struct regulator_ops mc13xxx_fixed_regulator_ops;
 #define MC13xxx_GPO_DEFINE(prefix, _name, _reg,  _voltages, _ops)	\
 	[prefix ## _name] = {				\
 		.desc = {						\
-			.name = #prefix "_" #_name,			\
+			.name = #_name,					\
 			.n_voltages = ARRAY_SIZE(_voltages),		\
 			.ops = &_ops,		\
 			.type = REGULATOR_VOLTAGE,			\
diff --git a/drivers/regulator/of_regulator.c b/drivers/regulator/of_regulator.c
new file mode 100644
index 000000000000..f1651eb69648
--- /dev/null
+++ b/drivers/regulator/of_regulator.c
@@ -0,0 +1,87 @@
+/*
+ * OF helpers for regulator framework
+ *
+ * Copyright (C) 2011 Texas Instruments, Inc.
+ * Rajendra Nayak <rnayak@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/slab.h>
+#include <linux/of.h>
+#include <linux/regulator/machine.h>
+
+static void of_get_regulation_constraints(struct device_node *np,
+					struct regulator_init_data **init_data)
+{
+	const __be32 *min_uV, *max_uV, *uV_offset;
+	const __be32 *min_uA, *max_uA;
+	struct regulation_constraints *constraints = &(*init_data)->constraints;
+
+	constraints->name = of_get_property(np, "regulator-name", NULL);
+
+	min_uV = of_get_property(np, "regulator-min-microvolt", NULL);
+	if (min_uV)
+		constraints->min_uV = be32_to_cpu(*min_uV);
+	max_uV = of_get_property(np, "regulator-max-microvolt", NULL);
+	if (max_uV)
+		constraints->max_uV = be32_to_cpu(*max_uV);
+
+	/* Voltage change possible? */
+	if (constraints->min_uV != constraints->max_uV)
+		constraints->valid_ops_mask |= REGULATOR_CHANGE_VOLTAGE;
+	/* Only one voltage?  Then make sure it's set. */
+	if (constraints->min_uV == constraints->max_uV)
+		constraints->apply_uV = true;
+
+	uV_offset = of_get_property(np, "regulator-microvolt-offset", NULL);
+	if (uV_offset)
+		constraints->uV_offset = be32_to_cpu(*uV_offset);
+	min_uA = of_get_property(np, "regulator-min-microamp", NULL);
+	if (min_uA)
+		constraints->min_uA = be32_to_cpu(*min_uA);
+	max_uA = of_get_property(np, "regulator-max-microamp", NULL);
+	if (max_uA)
+		constraints->max_uA = be32_to_cpu(*max_uA);
+
+	/* Current change possible? */
+	if (constraints->min_uA != constraints->max_uA)
+		constraints->valid_ops_mask |= REGULATOR_CHANGE_CURRENT;
+
+	if (of_find_property(np, "regulator-boot-on", NULL))
+		constraints->boot_on = true;
+
+	if (of_find_property(np, "regulator-always-on", NULL))
+		constraints->always_on = true;
+	else /* status change should be possible if not always on. */
+		constraints->valid_ops_mask |= REGULATOR_CHANGE_STATUS;
+}
+
+/**
+ * of_get_regulator_init_data - extract regulator_init_data structure info
+ * @dev: device requesting for regulator_init_data
+ *
+ * Populates regulator_init_data structure by extracting data from device
+ * tree node, returns a pointer to the populated struture or NULL if memory
+ * alloc fails.
+ */
+struct regulator_init_data *of_get_regulator_init_data(struct device *dev,
+						struct device_node *node)
+{
+	struct regulator_init_data *init_data;
+
+	if (!node)
+		return NULL;
+
+	init_data = devm_kzalloc(dev, sizeof(*init_data), GFP_KERNEL);
+	if (!init_data)
+		return NULL; /* Out of memory? */
+
+	of_get_regulation_constraints(node, &init_data);
+	return init_data;
+}
+EXPORT_SYMBOL_GPL(of_get_regulator_init_data);
diff --git a/drivers/regulator/pcap-regulator.c b/drivers/regulator/pcap-regulator.c
index 31f6e11a7f16..a5aab1b08bcf 100644
--- a/drivers/regulator/pcap-regulator.c
+++ b/drivers/regulator/pcap-regulator.c
@@ -277,7 +277,7 @@ static int __devinit pcap_regulator_probe(struct platform_device *pdev)
 	void *pcap = dev_get_drvdata(pdev->dev.parent);
 
 	rdev = regulator_register(&pcap_regulators[pdev->id], &pdev->dev,
-				pdev->dev.platform_data, pcap);
+				pdev->dev.platform_data, pcap, NULL);
 	if (IS_ERR(rdev))
 		return PTR_ERR(rdev);
 
diff --git a/drivers/regulator/pcf50633-regulator.c b/drivers/regulator/pcf50633-regulator.c
index 69a11d9dd87f..1d1c31056297 100644
--- a/drivers/regulator/pcf50633-regulator.c
+++ b/drivers/regulator/pcf50633-regulator.c
@@ -320,7 +320,7 @@ static int __devinit pcf50633_regulator_probe(struct platform_device *pdev)
 	pcf = dev_to_pcf50633(pdev->dev.parent);
 
 	rdev = regulator_register(&regulators[pdev->id], &pdev->dev,
-				  pdev->dev.platform_data, pcf);
+				  pdev->dev.platform_data, pcf, NULL);
 	if (IS_ERR(rdev))
 		return PTR_ERR(rdev);
 
diff --git a/drivers/regulator/tps6105x-regulator.c b/drivers/regulator/tps6105x-regulator.c
index 1011873896dc..d9278da18a9e 100644
--- a/drivers/regulator/tps6105x-regulator.c
+++ b/drivers/regulator/tps6105x-regulator.c
@@ -151,7 +151,8 @@ static int __devinit tps6105x_regulator_probe(struct platform_device *pdev)
 	/* Register regulator with framework */
 	tps6105x->regulator = regulator_register(&tps6105x_regulator_desc,
 					     &tps6105x->client->dev,
-					     pdata->regulator_data, tps6105x);
+					     pdata->regulator_data, tps6105x,
+					     NULL);
 	if (IS_ERR(tps6105x->regulator)) {
 		ret = PTR_ERR(tps6105x->regulator);
 		dev_err(&tps6105x->client->dev,
diff --git a/drivers/regulator/tps65023-regulator.c b/drivers/regulator/tps65023-regulator.c
index 9fb4c7b81753..18d61a0529a9 100644
--- a/drivers/regulator/tps65023-regulator.c
+++ b/drivers/regulator/tps65023-regulator.c
@@ -152,48 +152,21 @@ struct tps_driver_data {
 	u8 core_regulator;
 };
 
-static int tps_65023_set_bits(struct tps_pmic *tps, u8 reg, u8 mask)
-{
-	return regmap_update_bits(tps->regmap, reg, mask, mask);
-}
-
-static int tps_65023_clear_bits(struct tps_pmic *tps, u8 reg, u8 mask)
-{
-	return regmap_update_bits(tps->regmap, reg, mask, 0);
-}
-
-static int tps_65023_reg_read(struct tps_pmic *tps, u8 reg)
-{
-	unsigned int val;
-	int ret;
-
-	ret = regmap_read(tps->regmap, reg, &val);
-
-	if (ret != 0)
-		return ret;
-	else
-		return val;
-}
-
-static int tps_65023_reg_write(struct tps_pmic *tps, u8 reg, u8 val)
-{
-	return regmap_write(tps->regmap, reg, val);
-}
-
 static int tps65023_dcdc_is_enabled(struct regulator_dev *dev)
 {
 	struct tps_pmic *tps = rdev_get_drvdata(dev);
 	int data, dcdc = rdev_get_id(dev);
+	int ret;
 	u8 shift;
 
 	if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3)
 		return -EINVAL;
 
 	shift = TPS65023_NUM_REGULATOR - dcdc;
-	data = tps_65023_reg_read(tps, TPS65023_REG_REG_CTRL);
+	ret = regmap_read(tps->regmap, TPS65023_REG_REG_CTRL, &data);
 
-	if (data < 0)
-		return data;
+	if (ret != 0)
+		return ret;
 	else
 		return (data & 1<<shift) ? 1 : 0;
 }
@@ -202,16 +175,17 @@ static int tps65023_ldo_is_enabled(struct regulator_dev *dev)
 {
 	struct tps_pmic *tps = rdev_get_drvdata(dev);
 	int data, ldo = rdev_get_id(dev);
+	int ret;
 	u8 shift;
 
 	if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2)
 		return -EINVAL;
 
 	shift = (ldo == TPS65023_LDO_1 ? 1 : 2);
-	data = tps_65023_reg_read(tps, TPS65023_REG_REG_CTRL);
+	ret = regmap_read(tps->regmap, TPS65023_REG_REG_CTRL, &data);
 
-	if (data < 0)
-		return data;
+	if (ret != 0)
+		return ret;
 	else
 		return (data & 1<<shift) ? 1 : 0;
 }
@@ -226,7 +200,7 @@ static int tps65023_dcdc_enable(struct regulator_dev *dev)
 		return -EINVAL;
 
 	shift = TPS65023_NUM_REGULATOR - dcdc;
-	return tps_65023_set_bits(tps, TPS65023_REG_REG_CTRL, 1 << shift);
+	return regmap_update_bits(tps->regmap, TPS65023_REG_REG_CTRL, 1 << shift, 1 << shift);
 }
 
 static int tps65023_dcdc_disable(struct regulator_dev *dev)
@@ -239,7 +213,7 @@ static int tps65023_dcdc_disable(struct regulator_dev *dev)
 		return -EINVAL;
 
 	shift = TPS65023_NUM_REGULATOR - dcdc;
-	return tps_65023_clear_bits(tps, TPS65023_REG_REG_CTRL, 1 << shift);
+	return regmap_update_bits(tps->regmap, TPS65023_REG_REG_CTRL, 1 << shift, 0);
 }
 
 static int tps65023_ldo_enable(struct regulator_dev *dev)
@@ -252,7 +226,7 @@ static int tps65023_ldo_enable(struct regulator_dev *dev)
 		return -EINVAL;
 
 	shift = (ldo == TPS65023_LDO_1 ? 1 : 2);
-	return tps_65023_set_bits(tps, TPS65023_REG_REG_CTRL, 1 << shift);
+	return regmap_update_bits(tps->regmap, TPS65023_REG_REG_CTRL, 1 << shift, 1 << shift);
 }
 
 static int tps65023_ldo_disable(struct regulator_dev *dev)
@@ -265,21 +239,22 @@ static int tps65023_ldo_disable(struct regulator_dev *dev)
 		return -EINVAL;
 
 	shift = (ldo == TPS65023_LDO_1 ? 1 : 2);
-	return tps_65023_clear_bits(tps, TPS65023_REG_REG_CTRL, 1 << shift);
+	return regmap_update_bits(tps->regmap, TPS65023_REG_REG_CTRL, 1 << shift, 0);
 }
 
 static int tps65023_dcdc_get_voltage(struct regulator_dev *dev)
 {
 	struct tps_pmic *tps = rdev_get_drvdata(dev);
+	int ret;
 	int data, dcdc = rdev_get_id(dev);
 
 	if (dcdc < TPS65023_DCDC_1 || dcdc > TPS65023_DCDC_3)
 		return -EINVAL;
 
 	if (dcdc == tps->core_regulator) {
-		data = tps_65023_reg_read(tps, TPS65023_REG_DEF_CORE);
-		if (data < 0)
-			return data;
+		ret = regmap_read(tps->regmap, TPS65023_REG_DEF_CORE, &data);
+		if (ret != 0)
+			return ret;
 		data &= (tps->info[dcdc]->table_len - 1);
 		return tps->info[dcdc]->table[data] * 1000;
 	} else
@@ -318,13 +293,13 @@ static int tps65023_dcdc_set_voltage(struct regulator_dev *dev,
 	if (vsel == tps->info[dcdc]->table_len)
 		goto failed;
 
-	ret = tps_65023_reg_write(tps, TPS65023_REG_DEF_CORE, vsel);
+	ret = regmap_write(tps->regmap, TPS65023_REG_DEF_CORE, vsel);
 
 	/* Tell the chip that we have changed the value in DEFCORE
 	 * and its time to update the core voltage
 	 */
-	tps_65023_set_bits(tps, TPS65023_REG_CON_CTRL2,
-						TPS65023_REG_CTRL2_GO);
+	regmap_update_bits(tps->regmap, TPS65023_REG_CON_CTRL2,
+			TPS65023_REG_CTRL2_GO, TPS65023_REG_CTRL2_GO);
 
 	return ret;
 
@@ -336,13 +311,14 @@ static int tps65023_ldo_get_voltage(struct regulator_dev *dev)
 {
 	struct tps_pmic *tps = rdev_get_drvdata(dev);
 	int data, ldo = rdev_get_id(dev);
+	int ret;
 
 	if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2)
 		return -EINVAL;
 
-	data = tps_65023_reg_read(tps, TPS65023_REG_LDO_CTRL);
-	if (data < 0)
-		return data;
+	ret = regmap_read(tps->regmap, TPS65023_REG_LDO_CTRL, &data);
+	if (ret != 0)
+		return ret;
 
 	data >>= (TPS65023_LDO_CTRL_LDOx_SHIFT(ldo - TPS65023_LDO_1));
 	data &= (tps->info[ldo]->table_len - 1);
@@ -354,6 +330,7 @@ static int tps65023_ldo_set_voltage(struct regulator_dev *dev,
 {
 	struct tps_pmic *tps = rdev_get_drvdata(dev);
 	int data, vsel, ldo = rdev_get_id(dev);
+	int ret;
 
 	if (ldo < TPS65023_LDO_1 || ldo > TPS65023_LDO_2)
 		return -EINVAL;
@@ -377,13 +354,13 @@ static int tps65023_ldo_set_voltage(struct regulator_dev *dev,
 
 	*selector = vsel;
 
-	data = tps_65023_reg_read(tps, TPS65023_REG_LDO_CTRL);
-	if (data < 0)
-		return data;
+	ret = regmap_read(tps->regmap, TPS65023_REG_LDO_CTRL, &data);
+	if (ret != 0)
+		return ret;
 
 	data &= TPS65023_LDO_CTRL_LDOx_MASK(ldo - TPS65023_LDO_1);
 	data |= (vsel << (TPS65023_LDO_CTRL_LDOx_SHIFT(ldo - TPS65023_LDO_1)));
-	return tps_65023_reg_write(tps, TPS65023_REG_LDO_CTRL, data);
+	return regmap_write(tps->regmap, TPS65023_REG_LDO_CTRL, data);
 }
 
 static int tps65023_dcdc_list_voltage(struct regulator_dev *dev,
@@ -496,7 +473,7 @@ static int __devinit tps_65023_probe(struct i2c_client *client,
 
 		/* Register the regulators */
 		rdev = regulator_register(&tps->desc[i], &client->dev,
-					  init_data, tps);
+					  init_data, tps, NULL);
 		if (IS_ERR(rdev)) {
 			dev_err(&client->dev, "failed to register %s\n",
 				id->name);
@@ -511,12 +488,12 @@ static int __devinit tps_65023_probe(struct i2c_client *client,
 	i2c_set_clientdata(client, tps);
 
 	/* Enable setting output voltage by I2C */
-	tps_65023_clear_bits(tps, TPS65023_REG_CON_CTRL2,
-						TPS65023_REG_CTRL2_CORE_ADJ);
+	regmap_update_bits(tps->regmap, TPS65023_REG_CON_CTRL2,
+			TPS65023_REG_CTRL2_CORE_ADJ, TPS65023_REG_CTRL2_CORE_ADJ);
 
 	/* Enable setting output voltage by I2C */
-	tps_65023_clear_bits(tps, TPS65023_REG_CON_CTRL2,
-						TPS65023_REG_CTRL2_CORE_ADJ);
+	regmap_update_bits(tps->regmap, TPS65023_REG_CON_CTRL2,
+			TPS65023_REG_CTRL2_CORE_ADJ, TPS65023_REG_CTRL2_CORE_ADJ);
 
 	return 0;
 
diff --git a/drivers/regulator/tps6507x-regulator.c b/drivers/regulator/tps6507x-regulator.c
index bdef70365f52..0b63ef71a5fe 100644
--- a/drivers/regulator/tps6507x-regulator.c
+++ b/drivers/regulator/tps6507x-regulator.c
@@ -599,7 +599,7 @@ int tps6507x_pmic_probe(struct platform_device *pdev)
 		tps->desc[i].owner = THIS_MODULE;
 
 		rdev = regulator_register(&tps->desc[i],
-					tps6507x_dev->dev, init_data, tps);
+					tps6507x_dev->dev, init_data, tps, NULL);
 		if (IS_ERR(rdev)) {
 			dev_err(tps6507x_dev->dev,
 				"failed to register %s regulator\n",
diff --git a/drivers/regulator/tps6524x-regulator.c b/drivers/regulator/tps6524x-regulator.c
index 9166aa0a9df7..70b7b1f4f000 100644
--- a/drivers/regulator/tps6524x-regulator.c
+++ b/drivers/regulator/tps6524x-regulator.c
@@ -651,7 +651,7 @@ static int __devinit pmic_probe(struct spi_device *spi)
 			hw->desc[i].n_voltages = 1;
 
 		hw->rdev[i] = regulator_register(&hw->desc[i], dev,
-						 init_data, hw);
+						 init_data, hw, NULL);
 		if (IS_ERR(hw->rdev[i])) {
 			ret = PTR_ERR(hw->rdev[i]);
 			hw->rdev[i] = NULL;
diff --git a/drivers/regulator/tps6586x-regulator.c b/drivers/regulator/tps6586x-regulator.c
index 14b9389dd52a..c75fb20faa57 100644
--- a/drivers/regulator/tps6586x-regulator.c
+++ b/drivers/regulator/tps6586x-regulator.c
@@ -396,7 +396,7 @@ static int __devinit tps6586x_regulator_probe(struct platform_device *pdev)
 		return err;
 
 	rdev = regulator_register(&ri->desc, &pdev->dev,
-				  pdev->dev.platform_data, ri);
+				  pdev->dev.platform_data, ri, NULL);
 	if (IS_ERR(rdev)) {
 		dev_err(&pdev->dev, "failed to register regulator %s\n",
 				ri->desc.name);
diff --git a/drivers/regulator/tps65910-regulator.c b/drivers/regulator/tps65910-regulator.c
index b552aae55b41..5c15ba01e9c7 100644
--- a/drivers/regulator/tps65910-regulator.c
+++ b/drivers/regulator/tps65910-regulator.c
@@ -25,30 +25,6 @@
 #include <linux/gpio.h>
 #include <linux/mfd/tps65910.h>
 
-#define TPS65910_REG_VRTC		0
-#define TPS65910_REG_VIO		1
-#define TPS65910_REG_VDD1		2
-#define TPS65910_REG_VDD2		3
-#define TPS65910_REG_VDD3		4
-#define TPS65910_REG_VDIG1		5
-#define TPS65910_REG_VDIG2		6
-#define TPS65910_REG_VPLL		7
-#define TPS65910_REG_VDAC		8
-#define TPS65910_REG_VAUX1		9
-#define TPS65910_REG_VAUX2		10
-#define TPS65910_REG_VAUX33		11
-#define TPS65910_REG_VMMC		12
-
-#define TPS65911_REG_VDDCTRL		4
-#define TPS65911_REG_LDO1		5
-#define TPS65911_REG_LDO2		6
-#define TPS65911_REG_LDO3		7
-#define TPS65911_REG_LDO4		8
-#define TPS65911_REG_LDO5		9
-#define TPS65911_REG_LDO6		10
-#define TPS65911_REG_LDO7		11
-#define TPS65911_REG_LDO8		12
-
 #define TPS65910_SUPPLY_STATE_ENABLED	0x1
 
 /* supported VIO voltages in milivolts */
@@ -885,8 +861,6 @@ static __devinit int tps65910_probe(struct platform_device *pdev)
 	if (!pmic_plat_data)
 		return -EINVAL;
 
-	reg_data = pmic_plat_data->tps65910_pmic_init_data;
-
 	pmic = kzalloc(sizeof(*pmic), GFP_KERNEL);
 	if (!pmic)
 		return -ENOMEM;
@@ -937,7 +911,16 @@ static __devinit int tps65910_probe(struct platform_device *pdev)
 		goto err_free_info;
 	}
 
-	for (i = 0; i < pmic->num_regulators; i++, info++, reg_data++) {
+	for (i = 0; i < pmic->num_regulators && i < TPS65910_NUM_REGS;
+			i++, info++) {
+
+		reg_data = pmic_plat_data->tps65910_pmic_init_data[i];
+
+		/* Regulator API handles empty constraints but not NULL
+		 * constraints */
+		if (!reg_data)
+			continue;
+
 		/* Register the regulators */
 		pmic->info[i] = info;
 
@@ -965,7 +948,7 @@ static __devinit int tps65910_probe(struct platform_device *pdev)
 		pmic->desc[i].owner = THIS_MODULE;
 
 		rdev = regulator_register(&pmic->desc[i],
-				tps65910->dev, reg_data, pmic);
+				tps65910->dev, reg_data, pmic, NULL);
 		if (IS_ERR(rdev)) {
 			dev_err(tps65910->dev,
 				"failed to register %s regulator\n",
diff --git a/drivers/regulator/tps65912-regulator.c b/drivers/regulator/tps65912-regulator.c
index 39d4a1749e71..da00d88f94b7 100644
--- a/drivers/regulator/tps65912-regulator.c
+++ b/drivers/regulator/tps65912-regulator.c
@@ -727,7 +727,7 @@ static __devinit int tps65912_probe(struct platform_device *pdev)
 		pmic->desc[i].owner = THIS_MODULE;
 		range = tps65912_get_range(pmic, i);
 		rdev = regulator_register(&pmic->desc[i],
-					tps65912->dev, reg_data, pmic);
+					tps65912->dev, reg_data, pmic, NULL);
 		if (IS_ERR(rdev)) {
 			dev_err(tps65912->dev,
 				"failed to register %s regulator\n",
diff --git a/drivers/regulator/twl-regulator.c b/drivers/regulator/twl-regulator.c
index 11cc308d66e9..181a2cfe180c 100644
--- a/drivers/regulator/twl-regulator.c
+++ b/drivers/regulator/twl-regulator.c
@@ -1112,7 +1112,7 @@ static int __devinit twlreg_probe(struct platform_device *pdev)
 		break;
 	}
 
-	rdev = regulator_register(&info->desc, &pdev->dev, initdata, info);
+	rdev = regulator_register(&info->desc, &pdev->dev, initdata, info, NULL);
 	if (IS_ERR(rdev)) {
 		dev_err(&pdev->dev, "can't register %s, %ld\n",
 				info->desc.name, PTR_ERR(rdev));
diff --git a/drivers/regulator/userspace-consumer.c b/drivers/regulator/userspace-consumer.c
index fc6655146999..518667ef9a0d 100644
--- a/drivers/regulator/userspace-consumer.c
+++ b/drivers/regulator/userspace-consumer.c
@@ -185,18 +185,7 @@ static struct platform_driver regulator_userspace_consumer_driver = {
 	},
 };
 
-
-static int __init regulator_userspace_consumer_init(void)
-{
-	return platform_driver_register(&regulator_userspace_consumer_driver);
-}
-module_init(regulator_userspace_consumer_init);
-
-static void __exit regulator_userspace_consumer_exit(void)
-{
-	platform_driver_unregister(&regulator_userspace_consumer_driver);
-}
-module_exit(regulator_userspace_consumer_exit);
+module_platform_driver(regulator_userspace_consumer_driver);
 
 MODULE_AUTHOR("Mike Rapoport <mike@compulab.co.il>");
 MODULE_DESCRIPTION("Userspace consumer for voltage and current regulators");
diff --git a/drivers/regulator/virtual.c b/drivers/regulator/virtual.c
index 858c1f861ba5..ee0b161c998f 100644
--- a/drivers/regulator/virtual.c
+++ b/drivers/regulator/virtual.c
@@ -352,17 +352,7 @@ static struct platform_driver regulator_virtual_consumer_driver = {
 	},
 };
 
-static int __init regulator_virtual_consumer_init(void)
-{
-	return platform_driver_register(&regulator_virtual_consumer_driver);
-}
-module_init(regulator_virtual_consumer_init);
-
-static void __exit regulator_virtual_consumer_exit(void)
-{
-	platform_driver_unregister(&regulator_virtual_consumer_driver);
-}
-module_exit(regulator_virtual_consumer_exit);
+module_platform_driver(regulator_virtual_consumer_driver);
 
 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
 MODULE_DESCRIPTION("Virtual regulator consumer");
diff --git a/drivers/regulator/wm831x-dcdc.c b/drivers/regulator/wm831x-dcdc.c
index bd3531d8b2ac..4904a40b0d46 100644
--- a/drivers/regulator/wm831x-dcdc.c
+++ b/drivers/regulator/wm831x-dcdc.c
@@ -511,7 +511,8 @@ static __devinit int wm831x_buckv_probe(struct platform_device *pdev)
 	if (pdata == NULL || pdata->dcdc[id] == NULL)
 		return -ENODEV;
 
-	dcdc = kzalloc(sizeof(struct wm831x_dcdc), GFP_KERNEL);
+	dcdc = devm_kzalloc(&pdev->dev,  sizeof(struct wm831x_dcdc),
+			    GFP_KERNEL);
 	if (dcdc == NULL) {
 		dev_err(&pdev->dev, "Unable to allocate private data\n");
 		return -ENOMEM;
@@ -553,7 +554,7 @@ static __devinit int wm831x_buckv_probe(struct platform_device *pdev)
 		wm831x_buckv_dvs_init(dcdc, pdata->dcdc[id]->driver_data);
 
 	dcdc->regulator = regulator_register(&dcdc->desc, &pdev->dev,
-					     pdata->dcdc[id], dcdc);
+					     pdata->dcdc[id], dcdc, NULL);
 	if (IS_ERR(dcdc->regulator)) {
 		ret = PTR_ERR(dcdc->regulator);
 		dev_err(wm831x->dev, "Failed to register DCDC%d: %d\n",
@@ -590,7 +591,6 @@ err_regulator:
 err:
 	if (dcdc->dvs_gpio)
 		gpio_free(dcdc->dvs_gpio);
-	kfree(dcdc);
 	return ret;
 }
 
@@ -605,7 +605,6 @@ static __devexit int wm831x_buckv_remove(struct platform_device *pdev)
 	regulator_unregister(dcdc->regulator);
 	if (dcdc->dvs_gpio)
 		gpio_free(dcdc->dvs_gpio);
-	kfree(dcdc);
 
 	return 0;
 }
@@ -722,7 +721,8 @@ static __devinit int wm831x_buckp_probe(struct platform_device *pdev)
 	if (pdata == NULL || pdata->dcdc[id] == NULL)
 		return -ENODEV;
 
-	dcdc = kzalloc(sizeof(struct wm831x_dcdc), GFP_KERNEL);
+	dcdc = devm_kzalloc(&pdev->dev, sizeof(struct wm831x_dcdc),
+			    GFP_KERNEL);
 	if (dcdc == NULL) {
 		dev_err(&pdev->dev, "Unable to allocate private data\n");
 		return -ENOMEM;
@@ -747,7 +747,7 @@ static __devinit int wm831x_buckp_probe(struct platform_device *pdev)
 	dcdc->desc.owner = THIS_MODULE;
 
 	dcdc->regulator = regulator_register(&dcdc->desc, &pdev->dev,
-					     pdata->dcdc[id], dcdc);
+					     pdata->dcdc[id], dcdc, NULL);
 	if (IS_ERR(dcdc->regulator)) {
 		ret = PTR_ERR(dcdc->regulator);
 		dev_err(wm831x->dev, "Failed to register DCDC%d: %d\n",
@@ -771,7 +771,6 @@ static __devinit int wm831x_buckp_probe(struct platform_device *pdev)
 err_regulator:
 	regulator_unregister(dcdc->regulator);
 err:
-	kfree(dcdc);
 	return ret;
 }
 
@@ -783,7 +782,6 @@ static __devexit int wm831x_buckp_remove(struct platform_device *pdev)
 
 	free_irq(platform_get_irq_byname(pdev, "UV"), dcdc);
 	regulator_unregister(dcdc->regulator);
-	kfree(dcdc);
 
 	return 0;
 }
@@ -874,7 +872,7 @@ static __devinit int wm831x_boostp_probe(struct platform_device *pdev)
 	dcdc->desc.owner = THIS_MODULE;
 
 	dcdc->regulator = regulator_register(&dcdc->desc, &pdev->dev,
-					     pdata->dcdc[id], dcdc);
+					     pdata->dcdc[id], dcdc, NULL);
 	if (IS_ERR(dcdc->regulator)) {
 		ret = PTR_ERR(dcdc->regulator);
 		dev_err(wm831x->dev, "Failed to register DCDC%d: %d\n",
@@ -973,7 +971,7 @@ static __devinit int wm831x_epe_probe(struct platform_device *pdev)
 	dcdc->desc.owner = THIS_MODULE;
 
 	dcdc->regulator = regulator_register(&dcdc->desc, &pdev->dev,
-					     pdata->epe[id], dcdc);
+					     pdata->epe[id], dcdc, NULL);
 	if (IS_ERR(dcdc->regulator)) {
 		ret = PTR_ERR(dcdc->regulator);
 		dev_err(wm831x->dev, "Failed to register EPE%d: %d\n",
diff --git a/drivers/regulator/wm831x-isink.c b/drivers/regulator/wm831x-isink.c
index 01f27c7f4236..634aac3f2d5f 100644
--- a/drivers/regulator/wm831x-isink.c
+++ b/drivers/regulator/wm831x-isink.c
@@ -162,7 +162,8 @@ static __devinit int wm831x_isink_probe(struct platform_device *pdev)
 	if (pdata == NULL || pdata->isink[id] == NULL)
 		return -ENODEV;
 
-	isink = kzalloc(sizeof(struct wm831x_isink), GFP_KERNEL);
+	isink = devm_kzalloc(&pdev->dev, sizeof(struct wm831x_isink),
+			     GFP_KERNEL);
 	if (isink == NULL) {
 		dev_err(&pdev->dev, "Unable to allocate private data\n");
 		return -ENOMEM;
@@ -189,7 +190,7 @@ static __devinit int wm831x_isink_probe(struct platform_device *pdev)
 	isink->desc.owner = THIS_MODULE;
 
 	isink->regulator = regulator_register(&isink->desc, &pdev->dev,
-					     pdata->isink[id], isink);
+					     pdata->isink[id], isink, NULL);
 	if (IS_ERR(isink->regulator)) {
 		ret = PTR_ERR(isink->regulator);
 		dev_err(wm831x->dev, "Failed to register ISINK%d: %d\n",
@@ -213,7 +214,6 @@ static __devinit int wm831x_isink_probe(struct platform_device *pdev)
 err_regulator:
 	regulator_unregister(isink->regulator);
 err:
-	kfree(isink);
 	return ret;
 }
 
@@ -226,7 +226,6 @@ static __devexit int wm831x_isink_remove(struct platform_device *pdev)
 	free_irq(platform_get_irq(pdev, 0), isink);
 
 	regulator_unregister(isink->regulator);
-	kfree(isink);
 
 	return 0;
 }
diff --git a/drivers/regulator/wm831x-ldo.c b/drivers/regulator/wm831x-ldo.c
index 6709710a059e..f1e4ab0f9fda 100644
--- a/drivers/regulator/wm831x-ldo.c
+++ b/drivers/regulator/wm831x-ldo.c
@@ -326,7 +326,7 @@ static __devinit int wm831x_gp_ldo_probe(struct platform_device *pdev)
 	if (pdata == NULL || pdata->ldo[id] == NULL)
 		return -ENODEV;
 
-	ldo = kzalloc(sizeof(struct wm831x_ldo), GFP_KERNEL);
+	ldo = devm_kzalloc(&pdev->dev, sizeof(struct wm831x_ldo), GFP_KERNEL);
 	if (ldo == NULL) {
 		dev_err(&pdev->dev, "Unable to allocate private data\n");
 		return -ENOMEM;
@@ -351,7 +351,7 @@ static __devinit int wm831x_gp_ldo_probe(struct platform_device *pdev)
 	ldo->desc.owner = THIS_MODULE;
 
 	ldo->regulator = regulator_register(&ldo->desc, &pdev->dev,
-					     pdata->ldo[id], ldo);
+					     pdata->ldo[id], ldo, NULL);
 	if (IS_ERR(ldo->regulator)) {
 		ret = PTR_ERR(ldo->regulator);
 		dev_err(wm831x->dev, "Failed to register LDO%d: %d\n",
@@ -376,7 +376,6 @@ static __devinit int wm831x_gp_ldo_probe(struct platform_device *pdev)
 err_regulator:
 	regulator_unregister(ldo->regulator);
 err:
-	kfree(ldo);
 	return ret;
 }
 
@@ -388,7 +387,6 @@ static __devexit int wm831x_gp_ldo_remove(struct platform_device *pdev)
 
 	free_irq(platform_get_irq_byname(pdev, "UV"), ldo);
 	regulator_unregister(ldo->regulator);
-	kfree(ldo);
 
 	return 0;
 }
@@ -596,7 +594,7 @@ static __devinit int wm831x_aldo_probe(struct platform_device *pdev)
 	if (pdata == NULL || pdata->ldo[id] == NULL)
 		return -ENODEV;
 
-	ldo = kzalloc(sizeof(struct wm831x_ldo), GFP_KERNEL);
+	ldo = devm_kzalloc(&pdev->dev, sizeof(struct wm831x_ldo), GFP_KERNEL);
 	if (ldo == NULL) {
 		dev_err(&pdev->dev, "Unable to allocate private data\n");
 		return -ENOMEM;
@@ -621,7 +619,7 @@ static __devinit int wm831x_aldo_probe(struct platform_device *pdev)
 	ldo->desc.owner = THIS_MODULE;
 
 	ldo->regulator = regulator_register(&ldo->desc, &pdev->dev,
-					     pdata->ldo[id], ldo);
+					     pdata->ldo[id], ldo, NULL);
 	if (IS_ERR(ldo->regulator)) {
 		ret = PTR_ERR(ldo->regulator);
 		dev_err(wm831x->dev, "Failed to register LDO%d: %d\n",
@@ -645,7 +643,6 @@ static __devinit int wm831x_aldo_probe(struct platform_device *pdev)
 err_regulator:
 	regulator_unregister(ldo->regulator);
 err:
-	kfree(ldo);
 	return ret;
 }
 
@@ -655,7 +652,6 @@ static __devexit int wm831x_aldo_remove(struct platform_device *pdev)
 
 	free_irq(platform_get_irq_byname(pdev, "UV"), ldo);
 	regulator_unregister(ldo->regulator);
-	kfree(ldo);
 
 	return 0;
 }
@@ -793,7 +789,7 @@ static __devinit int wm831x_alive_ldo_probe(struct platform_device *pdev)
 	if (pdata == NULL || pdata->ldo[id] == NULL)
 		return -ENODEV;
 
-	ldo = kzalloc(sizeof(struct wm831x_ldo), GFP_KERNEL);
+	ldo = devm_kzalloc(&pdev->dev, sizeof(struct wm831x_ldo), GFP_KERNEL);
 	if (ldo == NULL) {
 		dev_err(&pdev->dev, "Unable to allocate private data\n");
 		return -ENOMEM;
@@ -818,7 +814,7 @@ static __devinit int wm831x_alive_ldo_probe(struct platform_device *pdev)
 	ldo->desc.owner = THIS_MODULE;
 
 	ldo->regulator = regulator_register(&ldo->desc, &pdev->dev,
-					     pdata->ldo[id], ldo);
+					     pdata->ldo[id], ldo, NULL);
 	if (IS_ERR(ldo->regulator)) {
 		ret = PTR_ERR(ldo->regulator);
 		dev_err(wm831x->dev, "Failed to register LDO%d: %d\n",
@@ -831,7 +827,6 @@ static __devinit int wm831x_alive_ldo_probe(struct platform_device *pdev)
 	return 0;
 
 err:
-	kfree(ldo);
 	return ret;
 }
 
@@ -840,7 +835,6 @@ static __devexit int wm831x_alive_ldo_remove(struct platform_device *pdev)
 	struct wm831x_ldo *ldo = platform_get_drvdata(pdev);
 
 	regulator_unregister(ldo->regulator);
-	kfree(ldo);
 
 	return 0;
 }
diff --git a/drivers/regulator/wm8350-regulator.c b/drivers/regulator/wm8350-regulator.c
index 1bcb22c44095..6894009d815a 100644
--- a/drivers/regulator/wm8350-regulator.c
+++ b/drivers/regulator/wm8350-regulator.c
@@ -1428,7 +1428,7 @@ static int wm8350_regulator_probe(struct platform_device *pdev)
 	/* register regulator */
 	rdev = regulator_register(&wm8350_reg[pdev->id], &pdev->dev,
 				  pdev->dev.platform_data,
-				  dev_get_drvdata(&pdev->dev));
+				  dev_get_drvdata(&pdev->dev), NULL);
 	if (IS_ERR(rdev)) {
 		dev_err(&pdev->dev, "failed to register %s\n",
 			wm8350_reg[pdev->id].name);
diff --git a/drivers/regulator/wm8400-regulator.c b/drivers/regulator/wm8400-regulator.c
index 71632ddc3781..706f39563a7b 100644
--- a/drivers/regulator/wm8400-regulator.c
+++ b/drivers/regulator/wm8400-regulator.c
@@ -326,7 +326,7 @@ static int __devinit wm8400_regulator_probe(struct platform_device *pdev)
 	struct regulator_dev *rdev;
 
 	rdev = regulator_register(&regulators[pdev->id], &pdev->dev,
-				  pdev->dev.platform_data, wm8400);
+				  pdev->dev.platform_data, wm8400, NULL);
 
 	if (IS_ERR(rdev))
 		return PTR_ERR(rdev);
diff --git a/drivers/regulator/wm8994-regulator.c b/drivers/regulator/wm8994-regulator.c
index b87bf5c841f8..435e335d6e67 100644
--- a/drivers/regulator/wm8994-regulator.c
+++ b/drivers/regulator/wm8994-regulator.c
@@ -269,7 +269,7 @@ static __devinit int wm8994_ldo_probe(struct platform_device *pdev)
 		ldo->is_enabled = true;
 
 	ldo->regulator = regulator_register(&wm8994_ldo_desc[id], &pdev->dev,
-					     pdata->ldo[id].init_data, ldo);
+					     pdata->ldo[id].init_data, ldo, NULL);
 	if (IS_ERR(ldo->regulator)) {
 		ret = PTR_ERR(ldo->regulator);
 		dev_err(wm8994->dev, "Failed to register LDO%d: %d\n",
diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index 53eb4e55b289..877cf6fdcf24 100644
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -774,7 +774,7 @@ config RTC_DRV_EP93XX
 
 config RTC_DRV_SA1100
 	tristate "SA11x0/PXA2xx"
-	depends on ARCH_SA1100 || ARCH_PXA
+	depends on ARCH_SA1100 || ARCH_PXA || ARCH_MMP
 	help
 	  If you say Y here you will get access to the real time clock
 	  built into your SA11x0 or PXA2xx CPU.
diff --git a/drivers/rtc/interface.c b/drivers/rtc/interface.c
index 8e286259a007..8a1c031391d6 100644
--- a/drivers/rtc/interface.c
+++ b/drivers/rtc/interface.c
@@ -228,11 +228,11 @@ int __rtc_read_alarm(struct rtc_device *rtc, struct rtc_wkalrm *alarm)
 		alarm->time.tm_hour = now.tm_hour;
 
 	/* For simplicity, only support date rollover for now */
-	if (alarm->time.tm_mday == -1) {
+	if (alarm->time.tm_mday < 1 || alarm->time.tm_mday > 31) {
 		alarm->time.tm_mday = now.tm_mday;
 		missing = day;
 	}
-	if (alarm->time.tm_mon == -1) {
+	if ((unsigned)alarm->time.tm_mon >= 12) {
 		alarm->time.tm_mon = now.tm_mon;
 		if (missing == none)
 			missing = month;
diff --git a/drivers/rtc/rtc-88pm860x.c b/drivers/rtc/rtc-88pm860x.c
index 64b847b7f970..f04761e6622d 100644
--- a/drivers/rtc/rtc-88pm860x.c
+++ b/drivers/rtc/rtc-88pm860x.c
@@ -410,17 +410,7 @@ static struct platform_driver pm860x_rtc_driver = {
 	.remove		= __devexit_p(pm860x_rtc_remove),
 };
 
-static int __init pm860x_rtc_init(void)
-{
-	return platform_driver_register(&pm860x_rtc_driver);
-}
-module_init(pm860x_rtc_init);
-
-static void __exit pm860x_rtc_exit(void)
-{
-	platform_driver_unregister(&pm860x_rtc_driver);
-}
-module_exit(pm860x_rtc_exit);
+module_platform_driver(pm860x_rtc_driver);
 
 MODULE_DESCRIPTION("Marvell 88PM860x RTC driver");
 MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
diff --git a/drivers/rtc/rtc-ab8500.c b/drivers/rtc/rtc-ab8500.c
index e346705aae92..a0a9810adf0b 100644
--- a/drivers/rtc/rtc-ab8500.c
+++ b/drivers/rtc/rtc-ab8500.c
@@ -90,7 +90,7 @@ static int ab8500_rtc_read_time(struct device *dev, struct rtc_time *tm)
 
 	/* Early AB8500 chips will not clear the rtc read request bit */
 	if (abx500_get_chip_id(dev) == 0) {
-		msleep(1);
+		usleep_range(1000, 1000);
 	} else {
 		/* Wait for some cycles after enabling the rtc read in ab8500 */
 		while (time_before(jiffies, timeout)) {
@@ -102,7 +102,7 @@ static int ab8500_rtc_read_time(struct device *dev, struct rtc_time *tm)
 			if (!(value & RTC_READ_REQUEST))
 				break;
 
-			msleep(1);
+			usleep_range(1000, 5000);
 		}
 	}
 
@@ -258,6 +258,109 @@ static int ab8500_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alarm)
 	return ab8500_rtc_irq_enable(dev, alarm->enabled);
 }
 
+
+static int ab8500_rtc_set_calibration(struct device *dev, int calibration)
+{
+	int retval;
+	u8  rtccal = 0;
+
+	/*
+	 * Check that the calibration value (which is in units of 0.5
+	 * parts-per-million) is in the AB8500's range for RtcCalibration
+	 * register. -128 (0x80) is not permitted because the AB8500 uses
+	 * a sign-bit rather than two's complement, so 0x80 is just another
+	 * representation of zero.
+	 */
+	if ((calibration < -127) || (calibration > 127)) {
+		dev_err(dev, "RtcCalibration value outside permitted range\n");
+		return -EINVAL;
+	}
+
+	/*
+	 * The AB8500 uses sign (in bit7) and magnitude (in bits0-7)
+	 * so need to convert to this sort of representation before writing
+	 * into RtcCalibration register...
+	 */
+	if (calibration >= 0)
+		rtccal = 0x7F & calibration;
+	else
+		rtccal = ~(calibration - 1) | 0x80;
+
+	retval = abx500_set_register_interruptible(dev, AB8500_RTC,
+			AB8500_RTC_CALIB_REG, rtccal);
+
+	return retval;
+}
+
+static int ab8500_rtc_get_calibration(struct device *dev, int *calibration)
+{
+	int retval;
+	u8  rtccal = 0;
+
+	retval =  abx500_get_register_interruptible(dev, AB8500_RTC,
+			AB8500_RTC_CALIB_REG, &rtccal);
+	if (retval >= 0) {
+		/*
+		 * The AB8500 uses sign (in bit7) and magnitude (in bits0-7)
+		 * so need to convert value from RtcCalibration register into
+		 * a two's complement signed value...
+		 */
+		if (rtccal & 0x80)
+			*calibration = 0 - (rtccal & 0x7F);
+		else
+			*calibration = 0x7F & rtccal;
+	}
+
+	return retval;
+}
+
+static ssize_t ab8500_sysfs_store_rtc_calibration(struct device *dev,
+				struct device_attribute *attr,
+				const char *buf, size_t count)
+{
+	int retval;
+	int calibration = 0;
+
+	if (sscanf(buf, " %i ", &calibration) != 1) {
+		dev_err(dev, "Failed to store RTC calibration attribute\n");
+		return -EINVAL;
+	}
+
+	retval = ab8500_rtc_set_calibration(dev, calibration);
+
+	return retval ? retval : count;
+}
+
+static ssize_t ab8500_sysfs_show_rtc_calibration(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	int  retval = 0;
+	int  calibration = 0;
+
+	retval = ab8500_rtc_get_calibration(dev, &calibration);
+	if (retval < 0) {
+		dev_err(dev, "Failed to read RTC calibration attribute\n");
+		sprintf(buf, "0\n");
+		return retval;
+	}
+
+	return sprintf(buf, "%d\n", calibration);
+}
+
+static DEVICE_ATTR(rtc_calibration, S_IRUGO | S_IWUSR,
+		   ab8500_sysfs_show_rtc_calibration,
+		   ab8500_sysfs_store_rtc_calibration);
+
+static int ab8500_sysfs_rtc_register(struct device *dev)
+{
+	return device_create_file(dev, &dev_attr_rtc_calibration);
+}
+
+static void ab8500_sysfs_rtc_unregister(struct device *dev)
+{
+	device_remove_file(dev, &dev_attr_rtc_calibration);
+}
+
 static irqreturn_t rtc_alarm_handler(int irq, void *data)
 {
 	struct rtc_device *rtc = data;
@@ -295,7 +398,7 @@ static int __devinit ab8500_rtc_probe(struct platform_device *pdev)
 		return err;
 
 	/* Wait for reset by the PorRtc */
-	msleep(1);
+	usleep_range(1000, 5000);
 
 	err = abx500_get_register_interruptible(&pdev->dev, AB8500_RTC,
 		AB8500_RTC_STAT_REG, &rtc_ctrl);
@@ -308,6 +411,8 @@ static int __devinit ab8500_rtc_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
+	device_init_wakeup(&pdev->dev, true);
+
 	rtc = rtc_device_register("ab8500-rtc", &pdev->dev, &ab8500_rtc_ops,
 			THIS_MODULE);
 	if (IS_ERR(rtc)) {
@@ -316,8 +421,8 @@ static int __devinit ab8500_rtc_probe(struct platform_device *pdev)
 		return err;
 	}
 
-	err = request_threaded_irq(irq, NULL, rtc_alarm_handler, 0,
-				   "ab8500-rtc", rtc);
+	err = request_threaded_irq(irq, NULL, rtc_alarm_handler,
+		IRQF_NO_SUSPEND, "ab8500-rtc", rtc);
 	if (err < 0) {
 		rtc_device_unregister(rtc);
 		return err;
@@ -325,6 +430,13 @@ static int __devinit ab8500_rtc_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, rtc);
 
+
+	err = ab8500_sysfs_rtc_register(&pdev->dev);
+	if (err) {
+		dev_err(&pdev->dev, "sysfs RTC failed to register\n");
+		return err;
+	}
+
 	return 0;
 }
 
@@ -333,6 +445,8 @@ static int __devexit ab8500_rtc_remove(struct platform_device *pdev)
 	struct rtc_device *rtc = platform_get_drvdata(pdev);
 	int irq = platform_get_irq_byname(pdev, "ALARM");
 
+	ab8500_sysfs_rtc_unregister(&pdev->dev);
+
 	free_irq(irq, rtc);
 	rtc_device_unregister(rtc);
 	platform_set_drvdata(pdev, NULL);
@@ -349,18 +463,8 @@ static struct platform_driver ab8500_rtc_driver = {
 	.remove = __devexit_p(ab8500_rtc_remove),
 };
 
-static int __init ab8500_rtc_init(void)
-{
-	return platform_driver_register(&ab8500_rtc_driver);
-}
-
-static void __exit ab8500_rtc_exit(void)
-{
-	platform_driver_unregister(&ab8500_rtc_driver);
-}
+module_platform_driver(ab8500_rtc_driver);
 
-module_init(ab8500_rtc_init);
-module_exit(ab8500_rtc_exit);
 MODULE_AUTHOR("Virupax Sadashivpetimath <virupax.sadashivpetimath@stericsson.com>");
 MODULE_DESCRIPTION("AB8500 RTC Driver");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/rtc/rtc-at91rm9200.c b/drivers/rtc/rtc-at91rm9200.c
index e39b77a4609a..dc474bc6522d 100644
--- a/drivers/rtc/rtc-at91rm9200.c
+++ b/drivers/rtc/rtc-at91rm9200.c
@@ -32,11 +32,17 @@
 
 #include <mach/at91_rtc.h>
 
+#define at91_rtc_read(field) \
+	__raw_readl(at91_rtc_regs + field)
+#define at91_rtc_write(field, val) \
+	__raw_writel((val), at91_rtc_regs + field)
 
 #define AT91_RTC_EPOCH		1900UL	/* just like arch/arm/common/rtctime.c */
 
 static DECLARE_COMPLETION(at91_rtc_updated);
 static unsigned int at91_alarm_year = AT91_RTC_EPOCH;
+static void __iomem *at91_rtc_regs;
+static int irq;
 
 /*
  * Decode time/date into rtc_time structure
@@ -48,10 +54,10 @@ static void at91_rtc_decodetime(unsigned int timereg, unsigned int calreg,
 
 	/* must read twice in case it changes */
 	do {
-		time = at91_sys_read(timereg);
-		date = at91_sys_read(calreg);
-	} while ((time != at91_sys_read(timereg)) ||
-			(date != at91_sys_read(calreg)));
+		time = at91_rtc_read(timereg);
+		date = at91_rtc_read(calreg);
+	} while ((time != at91_rtc_read(timereg)) ||
+			(date != at91_rtc_read(calreg)));
 
 	tm->tm_sec  = bcd2bin((time & AT91_RTC_SEC) >> 0);
 	tm->tm_min  = bcd2bin((time & AT91_RTC_MIN) >> 8);
@@ -98,19 +104,19 @@ static int at91_rtc_settime(struct device *dev, struct rtc_time *tm)
 		tm->tm_hour, tm->tm_min, tm->tm_sec);
 
 	/* Stop Time/Calendar from counting */
-	cr = at91_sys_read(AT91_RTC_CR);
-	at91_sys_write(AT91_RTC_CR, cr | AT91_RTC_UPDCAL | AT91_RTC_UPDTIM);
+	cr = at91_rtc_read(AT91_RTC_CR);
+	at91_rtc_write(AT91_RTC_CR, cr | AT91_RTC_UPDCAL | AT91_RTC_UPDTIM);
 
-	at91_sys_write(AT91_RTC_IER, AT91_RTC_ACKUPD);
+	at91_rtc_write(AT91_RTC_IER, AT91_RTC_ACKUPD);
 	wait_for_completion(&at91_rtc_updated);	/* wait for ACKUPD interrupt */
-	at91_sys_write(AT91_RTC_IDR, AT91_RTC_ACKUPD);
+	at91_rtc_write(AT91_RTC_IDR, AT91_RTC_ACKUPD);
 
-	at91_sys_write(AT91_RTC_TIMR,
+	at91_rtc_write(AT91_RTC_TIMR,
 			  bin2bcd(tm->tm_sec) << 0
 			| bin2bcd(tm->tm_min) << 8
 			| bin2bcd(tm->tm_hour) << 16);
 
-	at91_sys_write(AT91_RTC_CALR,
+	at91_rtc_write(AT91_RTC_CALR,
 			  bin2bcd((tm->tm_year + 1900) / 100)	/* century */
 			| bin2bcd(tm->tm_year % 100) << 8	/* year */
 			| bin2bcd(tm->tm_mon + 1) << 16		/* tm_mon starts at zero */
@@ -118,8 +124,8 @@ static int at91_rtc_settime(struct device *dev, struct rtc_time *tm)
 			| bin2bcd(tm->tm_mday) << 24);
 
 	/* Restart Time/Calendar */
-	cr = at91_sys_read(AT91_RTC_CR);
-	at91_sys_write(AT91_RTC_CR, cr & ~(AT91_RTC_UPDCAL | AT91_RTC_UPDTIM));
+	cr = at91_rtc_read(AT91_RTC_CR);
+	at91_rtc_write(AT91_RTC_CR, cr & ~(AT91_RTC_UPDCAL | AT91_RTC_UPDTIM));
 
 	return 0;
 }
@@ -135,7 +141,7 @@ static int at91_rtc_readalarm(struct device *dev, struct rtc_wkalrm *alrm)
 	tm->tm_yday = rtc_year_days(tm->tm_mday, tm->tm_mon, tm->tm_year);
 	tm->tm_year = at91_alarm_year - 1900;
 
-	alrm->enabled = (at91_sys_read(AT91_RTC_IMR) & AT91_RTC_ALARM)
+	alrm->enabled = (at91_rtc_read(AT91_RTC_IMR) & AT91_RTC_ALARM)
 			? 1 : 0;
 
 	pr_debug("%s(): %4d-%02d-%02d %02d:%02d:%02d\n", __func__,
@@ -160,20 +166,20 @@ static int at91_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm)
 	tm.tm_min = alrm->time.tm_min;
 	tm.tm_sec = alrm->time.tm_sec;
 
-	at91_sys_write(AT91_RTC_IDR, AT91_RTC_ALARM);
-	at91_sys_write(AT91_RTC_TIMALR,
+	at91_rtc_write(AT91_RTC_IDR, AT91_RTC_ALARM);
+	at91_rtc_write(AT91_RTC_TIMALR,
 		  bin2bcd(tm.tm_sec) << 0
 		| bin2bcd(tm.tm_min) << 8
 		| bin2bcd(tm.tm_hour) << 16
 		| AT91_RTC_HOUREN | AT91_RTC_MINEN | AT91_RTC_SECEN);
-	at91_sys_write(AT91_RTC_CALALR,
+	at91_rtc_write(AT91_RTC_CALALR,
 		  bin2bcd(tm.tm_mon + 1) << 16		/* tm_mon starts at zero */
 		| bin2bcd(tm.tm_mday) << 24
 		| AT91_RTC_DATEEN | AT91_RTC_MTHEN);
 
 	if (alrm->enabled) {
-		at91_sys_write(AT91_RTC_SCCR, AT91_RTC_ALARM);
-		at91_sys_write(AT91_RTC_IER, AT91_RTC_ALARM);
+		at91_rtc_write(AT91_RTC_SCCR, AT91_RTC_ALARM);
+		at91_rtc_write(AT91_RTC_IER, AT91_RTC_ALARM);
 	}
 
 	pr_debug("%s(): %4d-%02d-%02d %02d:%02d:%02d\n", __func__,
@@ -188,10 +194,10 @@ static int at91_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled)
 	pr_debug("%s(): cmd=%08x\n", __func__, enabled);
 
 	if (enabled) {
-		at91_sys_write(AT91_RTC_SCCR, AT91_RTC_ALARM);
-		at91_sys_write(AT91_RTC_IER, AT91_RTC_ALARM);
+		at91_rtc_write(AT91_RTC_SCCR, AT91_RTC_ALARM);
+		at91_rtc_write(AT91_RTC_IER, AT91_RTC_ALARM);
 	} else
-		at91_sys_write(AT91_RTC_IDR, AT91_RTC_ALARM);
+		at91_rtc_write(AT91_RTC_IDR, AT91_RTC_ALARM);
 
 	return 0;
 }
@@ -200,7 +206,7 @@ static int at91_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled)
  */
 static int at91_rtc_proc(struct device *dev, struct seq_file *seq)
 {
-	unsigned long imr = at91_sys_read(AT91_RTC_IMR);
+	unsigned long imr = at91_rtc_read(AT91_RTC_IMR);
 
 	seq_printf(seq, "update_IRQ\t: %s\n",
 			(imr & AT91_RTC_ACKUPD) ? "yes" : "no");
@@ -220,7 +226,7 @@ static irqreturn_t at91_rtc_interrupt(int irq, void *dev_id)
 	unsigned int rtsr;
 	unsigned long events = 0;
 
-	rtsr = at91_sys_read(AT91_RTC_SR) & at91_sys_read(AT91_RTC_IMR);
+	rtsr = at91_rtc_read(AT91_RTC_SR) & at91_rtc_read(AT91_RTC_IMR);
 	if (rtsr) {		/* this interrupt is shared!  Is it ours? */
 		if (rtsr & AT91_RTC_ALARM)
 			events |= (RTC_AF | RTC_IRQF);
@@ -229,7 +235,7 @@ static irqreturn_t at91_rtc_interrupt(int irq, void *dev_id)
 		if (rtsr & AT91_RTC_ACKUPD)
 			complete(&at91_rtc_updated);
 
-		at91_sys_write(AT91_RTC_SCCR, rtsr);	/* clear status reg */
+		at91_rtc_write(AT91_RTC_SCCR, rtsr);	/* clear status reg */
 
 		rtc_update_irq(rtc, 1, events);
 
@@ -256,22 +262,41 @@ static const struct rtc_class_ops at91_rtc_ops = {
 static int __init at91_rtc_probe(struct platform_device *pdev)
 {
 	struct rtc_device *rtc;
-	int ret;
+	struct resource *regs;
+	int ret = 0;
 
-	at91_sys_write(AT91_RTC_CR, 0);
-	at91_sys_write(AT91_RTC_MR, 0);		/* 24 hour mode */
+	regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!regs) {
+		dev_err(&pdev->dev, "no mmio resource defined\n");
+		return -ENXIO;
+	}
+
+	irq = platform_get_irq(pdev, 0);
+	if (irq < 0) {
+		dev_err(&pdev->dev, "no irq resource defined\n");
+		return -ENXIO;
+	}
+
+	at91_rtc_regs = ioremap(regs->start, resource_size(regs));
+	if (!at91_rtc_regs) {
+		dev_err(&pdev->dev, "failed to map registers, aborting.\n");
+		return -ENOMEM;
+	}
+
+	at91_rtc_write(AT91_RTC_CR, 0);
+	at91_rtc_write(AT91_RTC_MR, 0);		/* 24 hour mode */
 
 	/* Disable all interrupts */
-	at91_sys_write(AT91_RTC_IDR, AT91_RTC_ACKUPD | AT91_RTC_ALARM |
+	at91_rtc_write(AT91_RTC_IDR, AT91_RTC_ACKUPD | AT91_RTC_ALARM |
 					AT91_RTC_SECEV | AT91_RTC_TIMEV |
 					AT91_RTC_CALEV);
 
-	ret = request_irq(AT91_ID_SYS, at91_rtc_interrupt,
+	ret = request_irq(irq, at91_rtc_interrupt,
 				IRQF_SHARED,
 				"at91_rtc", pdev);
 	if (ret) {
 		printk(KERN_ERR "at91_rtc: IRQ %d already in use.\n",
-				AT91_ID_SYS);
+				irq);
 		return ret;
 	}
 
@@ -284,7 +309,7 @@ static int __init at91_rtc_probe(struct platform_device *pdev)
 	rtc = rtc_device_register(pdev->name, &pdev->dev,
 				&at91_rtc_ops, THIS_MODULE);
 	if (IS_ERR(rtc)) {
-		free_irq(AT91_ID_SYS, pdev);
+		free_irq(irq, pdev);
 		return PTR_ERR(rtc);
 	}
 	platform_set_drvdata(pdev, rtc);
@@ -301,10 +326,10 @@ static int __exit at91_rtc_remove(struct platform_device *pdev)
 	struct rtc_device *rtc = platform_get_drvdata(pdev);
 
 	/* Disable all interrupts */
-	at91_sys_write(AT91_RTC_IDR, AT91_RTC_ACKUPD | AT91_RTC_ALARM |
+	at91_rtc_write(AT91_RTC_IDR, AT91_RTC_ACKUPD | AT91_RTC_ALARM |
 					AT91_RTC_SECEV | AT91_RTC_TIMEV |
 					AT91_RTC_CALEV);
-	free_irq(AT91_ID_SYS, pdev);
+	free_irq(irq, pdev);
 
 	rtc_device_unregister(rtc);
 	platform_set_drvdata(pdev, NULL);
@@ -323,13 +348,13 @@ static int at91_rtc_suspend(struct device *dev)
 	/* this IRQ is shared with DBGU and other hardware which isn't
 	 * necessarily doing PM like we are...
 	 */
-	at91_rtc_imr = at91_sys_read(AT91_RTC_IMR)
+	at91_rtc_imr = at91_rtc_read(AT91_RTC_IMR)
 			& (AT91_RTC_ALARM|AT91_RTC_SECEV);
 	if (at91_rtc_imr) {
 		if (device_may_wakeup(dev))
-			enable_irq_wake(AT91_ID_SYS);
+			enable_irq_wake(irq);
 		else
-			at91_sys_write(AT91_RTC_IDR, at91_rtc_imr);
+			at91_rtc_write(AT91_RTC_IDR, at91_rtc_imr);
 	}
 	return 0;
 }
@@ -338,9 +363,9 @@ static int at91_rtc_resume(struct device *dev)
 {
 	if (at91_rtc_imr) {
 		if (device_may_wakeup(dev))
-			disable_irq_wake(AT91_ID_SYS);
+			disable_irq_wake(irq);
 		else
-			at91_sys_write(AT91_RTC_IER, at91_rtc_imr);
+			at91_rtc_write(AT91_RTC_IER, at91_rtc_imr);
 	}
 	return 0;
 }
diff --git a/drivers/rtc/rtc-bfin.c b/drivers/rtc/rtc-bfin.c
index 90d866272c8e..abfc1a0c07d9 100644
--- a/drivers/rtc/rtc-bfin.c
+++ b/drivers/rtc/rtc-bfin.c
@@ -456,18 +456,7 @@ static struct platform_driver bfin_rtc_driver = {
 	.resume		= bfin_rtc_resume,
 };
 
-static int __init bfin_rtc_init(void)
-{
-	return platform_driver_register(&bfin_rtc_driver);
-}
-
-static void __exit bfin_rtc_exit(void)
-{
-	platform_driver_unregister(&bfin_rtc_driver);
-}
-
-module_init(bfin_rtc_init);
-module_exit(bfin_rtc_exit);
+module_platform_driver(bfin_rtc_driver);
 
 MODULE_DESCRIPTION("Blackfin On-Chip Real Time Clock Driver");
 MODULE_AUTHOR("Mike Frysinger <vapier@gentoo.org>");
diff --git a/drivers/rtc/rtc-bq4802.c b/drivers/rtc/rtc-bq4802.c
index 128270ce355d..bf612ef22941 100644
--- a/drivers/rtc/rtc-bq4802.c
+++ b/drivers/rtc/rtc-bq4802.c
@@ -218,15 +218,4 @@ static struct platform_driver bq4802_driver = {
 	.remove		= __devexit_p(bq4802_remove),
 };
 
-static int __init bq4802_init(void)
-{
-	return platform_driver_register(&bq4802_driver);
-}
-
-static void __exit bq4802_exit(void)
-{
-	platform_driver_unregister(&bq4802_driver);
-}
-
-module_init(bq4802_init);
-module_exit(bq4802_exit);
+module_platform_driver(bq4802_driver);
diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
index 05beb6c1ca79..d7782aa09943 100644
--- a/drivers/rtc/rtc-cmos.c
+++ b/drivers/rtc/rtc-cmos.c
@@ -164,7 +164,7 @@ static inline unsigned char cmos_read_bank2(unsigned char addr)
 static inline void cmos_write_bank2(unsigned char val, unsigned char addr)
 {
 	outb(addr, RTC_PORT(2));
-	outb(val, RTC_PORT(2));
+	outb(val, RTC_PORT(3));
 }
 
 #else
diff --git a/drivers/rtc/rtc-dm355evm.c b/drivers/rtc/rtc-dm355evm.c
index 2322c43af201..d4457afcba89 100644
--- a/drivers/rtc/rtc-dm355evm.c
+++ b/drivers/rtc/rtc-dm355evm.c
@@ -161,16 +161,6 @@ static struct platform_driver rtc_dm355evm_driver = {
 	},
 };
 
-static int __init dm355evm_rtc_init(void)
-{
-	return platform_driver_register(&rtc_dm355evm_driver);
-}
-module_init(dm355evm_rtc_init);
-
-static void __exit dm355evm_rtc_exit(void)
-{
-	platform_driver_unregister(&rtc_dm355evm_driver);
-}
-module_exit(dm355evm_rtc_exit);
+module_platform_driver(rtc_dm355evm_driver);
 
 MODULE_LICENSE("GPL");
diff --git a/drivers/rtc/rtc-ds1286.c b/drivers/rtc/rtc-ds1286.c
index 68e6caf25496..990c3ff489bf 100644
--- a/drivers/rtc/rtc-ds1286.c
+++ b/drivers/rtc/rtc-ds1286.c
@@ -396,21 +396,10 @@ static struct platform_driver ds1286_platform_driver = {
 	.remove		= __devexit_p(ds1286_remove),
 };
 
-static int __init ds1286_init(void)
-{
-	return platform_driver_register(&ds1286_platform_driver);
-}
-
-static void __exit ds1286_exit(void)
-{
-	platform_driver_unregister(&ds1286_platform_driver);
-}
+module_platform_driver(ds1286_platform_driver);
 
 MODULE_AUTHOR("Thomas Bogendoerfer <tsbogend@alpha.franken.de>");
 MODULE_DESCRIPTION("DS1286 RTC driver");
 MODULE_LICENSE("GPL");
 MODULE_VERSION(DRV_VERSION);
 MODULE_ALIAS("platform:rtc-ds1286");
-
-module_init(ds1286_init);
-module_exit(ds1286_exit);
diff --git a/drivers/rtc/rtc-ds1511.c b/drivers/rtc/rtc-ds1511.c
index 586c244a05d8..761f36bc83a9 100644
--- a/drivers/rtc/rtc-ds1511.c
+++ b/drivers/rtc/rtc-ds1511.c
@@ -580,20 +580,7 @@ static struct platform_driver ds1511_rtc_driver = {
 	},
 };
 
- static int __init
-ds1511_rtc_init(void)
-{
-	return platform_driver_register(&ds1511_rtc_driver);
-}
-
- static void __exit
-ds1511_rtc_exit(void)
-{
-	platform_driver_unregister(&ds1511_rtc_driver);
-}
-
-module_init(ds1511_rtc_init);
-module_exit(ds1511_rtc_exit);
+module_platform_driver(ds1511_rtc_driver);
 
 MODULE_AUTHOR("Andrew Sharp <andy.sharp@lsi.com>");
 MODULE_DESCRIPTION("Dallas DS1511 RTC driver");
diff --git a/drivers/rtc/rtc-ds1553.c b/drivers/rtc/rtc-ds1553.c
index 1350029044e6..6f0a1b530f2e 100644
--- a/drivers/rtc/rtc-ds1553.c
+++ b/drivers/rtc/rtc-ds1553.c
@@ -361,18 +361,7 @@ static struct platform_driver ds1553_rtc_driver = {
 	},
 };
 
-static __init int ds1553_init(void)
-{
-	return platform_driver_register(&ds1553_rtc_driver);
-}
-
-static __exit void ds1553_exit(void)
-{
-	platform_driver_unregister(&ds1553_rtc_driver);
-}
-
-module_init(ds1553_init);
-module_exit(ds1553_exit);
+module_platform_driver(ds1553_rtc_driver);
 
 MODULE_AUTHOR("Atsushi Nemoto <anemo@mba.ocn.ne.jp>");
 MODULE_DESCRIPTION("Dallas DS1553 RTC driver");
diff --git a/drivers/rtc/rtc-ds1742.c b/drivers/rtc/rtc-ds1742.c
index e3e0f92b60f0..76112667c507 100644
--- a/drivers/rtc/rtc-ds1742.c
+++ b/drivers/rtc/rtc-ds1742.c
@@ -240,18 +240,7 @@ static struct platform_driver ds1742_rtc_driver = {
 	},
 };
 
-static __init int ds1742_init(void)
-{
-	return platform_driver_register(&ds1742_rtc_driver);
-}
-
-static __exit void ds1742_exit(void)
-{
-	platform_driver_unregister(&ds1742_rtc_driver);
-}
-
-module_init(ds1742_init);
-module_exit(ds1742_exit);
+module_platform_driver(ds1742_rtc_driver);
 
 MODULE_AUTHOR("Atsushi Nemoto <anemo@mba.ocn.ne.jp>");
 MODULE_DESCRIPTION("Dallas DS1742 RTC driver");
diff --git a/drivers/rtc/rtc-jz4740.c b/drivers/rtc/rtc-jz4740.c
index b6473631d182..05ab227eeff7 100644
--- a/drivers/rtc/rtc-jz4740.c
+++ b/drivers/rtc/rtc-jz4740.c
@@ -345,7 +345,7 @@ static const struct dev_pm_ops jz4740_pm_ops = {
 #define JZ4740_RTC_PM_OPS NULL
 #endif  /* CONFIG_PM */
 
-struct platform_driver jz4740_rtc_driver = {
+static struct platform_driver jz4740_rtc_driver = {
 	.probe	 = jz4740_rtc_probe,
 	.remove	 = __devexit_p(jz4740_rtc_remove),
 	.driver	 = {
@@ -355,17 +355,7 @@ struct platform_driver jz4740_rtc_driver = {
 	},
 };
 
-static int __init jz4740_rtc_init(void)
-{
-	return platform_driver_register(&jz4740_rtc_driver);
-}
-module_init(jz4740_rtc_init);
-
-static void __exit jz4740_rtc_exit(void)
-{
-	platform_driver_unregister(&jz4740_rtc_driver);
-}
-module_exit(jz4740_rtc_exit);
+module_platform_driver(jz4740_rtc_driver);
 
 MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
 MODULE_LICENSE("GPL");
diff --git a/drivers/rtc/rtc-lpc32xx.c b/drivers/rtc/rtc-lpc32xx.c
index ae16250c762f..ecc1713b2b4f 100644
--- a/drivers/rtc/rtc-lpc32xx.c
+++ b/drivers/rtc/rtc-lpc32xx.c
@@ -396,17 +396,7 @@ static struct platform_driver lpc32xx_rtc_driver = {
 	},
 };
 
-static int __init lpc32xx_rtc_init(void)
-{
-	return platform_driver_register(&lpc32xx_rtc_driver);
-}
-module_init(lpc32xx_rtc_init);
-
-static void __exit lpc32xx_rtc_exit(void)
-{
-	platform_driver_unregister(&lpc32xx_rtc_driver);
-}
-module_exit(lpc32xx_rtc_exit);
+module_platform_driver(lpc32xx_rtc_driver);
 
 MODULE_AUTHOR("Kevin Wells <wellsk40@gmail.com");
 MODULE_DESCRIPTION("RTC driver for the LPC32xx SoC");
diff --git a/drivers/rtc/rtc-m41t93.c b/drivers/rtc/rtc-m41t93.c
index 7317d3b9a3d5..ef71132ff205 100644
--- a/drivers/rtc/rtc-m41t93.c
+++ b/drivers/rtc/rtc-m41t93.c
@@ -200,7 +200,6 @@ static int __devexit m41t93_remove(struct spi_device *spi)
 static struct spi_driver m41t93_driver = {
 	.driver = {
 		.name	= "rtc-m41t93",
-		.bus	= &spi_bus_type,
 		.owner	= THIS_MODULE,
 	},
 	.probe	= m41t93_probe,
diff --git a/drivers/rtc/rtc-m41t94.c b/drivers/rtc/rtc-m41t94.c
index e259ed76ae85..2a4721f61797 100644
--- a/drivers/rtc/rtc-m41t94.c
+++ b/drivers/rtc/rtc-m41t94.c
@@ -147,7 +147,6 @@ static int __devexit m41t94_remove(struct spi_device *spi)
 static struct spi_driver m41t94_driver = {
 	.driver = {
 		.name	= "rtc-m41t94",
-		.bus	= &spi_bus_type,
 		.owner	= THIS_MODULE,
 	},
 	.probe	= m41t94_probe,
diff --git a/drivers/rtc/rtc-m48t35.c b/drivers/rtc/rtc-m48t35.c
index 8e2a24e33ed6..f9e3b3583733 100644
--- a/drivers/rtc/rtc-m48t35.c
+++ b/drivers/rtc/rtc-m48t35.c
@@ -216,21 +216,10 @@ static struct platform_driver m48t35_platform_driver = {
 	.remove		= __devexit_p(m48t35_remove),
 };
 
-static int __init m48t35_init(void)
-{
-	return platform_driver_register(&m48t35_platform_driver);
-}
-
-static void __exit m48t35_exit(void)
-{
-	platform_driver_unregister(&m48t35_platform_driver);
-}
+module_platform_driver(m48t35_platform_driver);
 
 MODULE_AUTHOR("Thomas Bogendoerfer <tsbogend@alpha.franken.de>");
 MODULE_DESCRIPTION("M48T35 RTC driver");
 MODULE_LICENSE("GPL");
 MODULE_VERSION(DRV_VERSION);
 MODULE_ALIAS("platform:rtc-m48t35");
-
-module_init(m48t35_init);
-module_exit(m48t35_exit);
diff --git a/drivers/rtc/rtc-m48t59.c b/drivers/rtc/rtc-m48t59.c
index 28365388fb6c..30ebfec9fd2b 100644
--- a/drivers/rtc/rtc-m48t59.c
+++ b/drivers/rtc/rtc-m48t59.c
@@ -530,18 +530,7 @@ static struct platform_driver m48t59_rtc_driver = {
 	.remove		= __devexit_p(m48t59_rtc_remove),
 };
 
-static int __init m48t59_rtc_init(void)
-{
-	return platform_driver_register(&m48t59_rtc_driver);
-}
-
-static void __exit m48t59_rtc_exit(void)
-{
-	platform_driver_unregister(&m48t59_rtc_driver);
-}
-
-module_init(m48t59_rtc_init);
-module_exit(m48t59_rtc_exit);
+module_platform_driver(m48t59_rtc_driver);
 
 MODULE_AUTHOR("Mark Zhan <rongkai.zhan@windriver.com>");
 MODULE_DESCRIPTION("M48T59/M48T02/M48T08 RTC driver");
diff --git a/drivers/rtc/rtc-m48t86.c b/drivers/rtc/rtc-m48t86.c
index f981287d582b..863fb3363aa6 100644
--- a/drivers/rtc/rtc-m48t86.c
+++ b/drivers/rtc/rtc-m48t86.c
@@ -185,21 +185,10 @@ static struct platform_driver m48t86_rtc_platform_driver = {
 	.remove		= __devexit_p(m48t86_rtc_remove),
 };
 
-static int __init m48t86_rtc_init(void)
-{
-	return platform_driver_register(&m48t86_rtc_platform_driver);
-}
-
-static void __exit m48t86_rtc_exit(void)
-{
-	platform_driver_unregister(&m48t86_rtc_platform_driver);
-}
+module_platform_driver(m48t86_rtc_platform_driver);
 
 MODULE_AUTHOR("Alessandro Zummo <a.zummo@towertech.it>");
 MODULE_DESCRIPTION("M48T86 RTC driver");
 MODULE_LICENSE("GPL");
 MODULE_VERSION(DRV_VERSION);
 MODULE_ALIAS("platform:rtc-m48t86");
-
-module_init(m48t86_rtc_init);
-module_exit(m48t86_rtc_exit);
diff --git a/drivers/rtc/rtc-max6902.c b/drivers/rtc/rtc-max6902.c
index 0ec3f588a255..1f6b3cc58e8a 100644
--- a/drivers/rtc/rtc-max6902.c
+++ b/drivers/rtc/rtc-max6902.c
@@ -154,7 +154,6 @@ static int __devexit max6902_remove(struct spi_device *spi)
 static struct spi_driver max6902_driver = {
 	.driver = {
 		.name	= "rtc-max6902",
-		.bus	= &spi_bus_type,
 		.owner	= THIS_MODULE,
 	},
 	.probe	= max6902_probe,
diff --git a/drivers/rtc/rtc-max8925.c b/drivers/rtc/rtc-max8925.c
index 3bc046f427e0..4a5529346b47 100644
--- a/drivers/rtc/rtc-max8925.c
+++ b/drivers/rtc/rtc-max8925.c
@@ -299,17 +299,7 @@ static struct platform_driver max8925_rtc_driver = {
 	.remove		= __devexit_p(max8925_rtc_remove),
 };
 
-static int __init max8925_rtc_init(void)
-{
-	return platform_driver_register(&max8925_rtc_driver);
-}
-module_init(max8925_rtc_init);
-
-static void __exit max8925_rtc_exit(void)
-{
-	platform_driver_unregister(&max8925_rtc_driver);
-}
-module_exit(max8925_rtc_exit);
+module_platform_driver(max8925_rtc_driver);
 
 MODULE_DESCRIPTION("Maxim MAX8925 RTC driver");
 MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
diff --git a/drivers/rtc/rtc-max8998.c b/drivers/rtc/rtc-max8998.c
index 2e48aa604273..7196f438c089 100644
--- a/drivers/rtc/rtc-max8998.c
+++ b/drivers/rtc/rtc-max8998.c
@@ -327,17 +327,7 @@ static struct platform_driver max8998_rtc_driver = {
 	.id_table	= max8998_rtc_id,
 };
 
-static int __init max8998_rtc_init(void)
-{
-	return platform_driver_register(&max8998_rtc_driver);
-}
-module_init(max8998_rtc_init);
-
-static void __exit max8998_rtc_exit(void)
-{
-	platform_driver_unregister(&max8998_rtc_driver);
-}
-module_exit(max8998_rtc_exit);
+module_platform_driver(max8998_rtc_driver);
 
 MODULE_AUTHOR("Minkyu Kang <mk7.kang@samsung.com>");
 MODULE_AUTHOR("Joonyoung Shim <jy0922.shim@samsung.com>");
diff --git a/drivers/rtc/rtc-mc13xxx.c b/drivers/rtc/rtc-mc13xxx.c
index 9d0c3b478d55..546f6850bffb 100644
--- a/drivers/rtc/rtc-mc13xxx.c
+++ b/drivers/rtc/rtc-mc13xxx.c
@@ -399,7 +399,7 @@ static int __exit mc13xxx_rtc_remove(struct platform_device *pdev)
 	return 0;
 }
 
-const struct platform_device_id mc13xxx_rtc_idtable[] = {
+static const struct platform_device_id mc13xxx_rtc_idtable[] = {
 	{
 		.name = "mc13783-rtc",
 	}, {
diff --git a/drivers/rtc/rtc-mpc5121.c b/drivers/rtc/rtc-mpc5121.c
index da60915818b6..9d3caccfc250 100644
--- a/drivers/rtc/rtc-mpc5121.c
+++ b/drivers/rtc/rtc-mpc5121.c
@@ -418,17 +418,7 @@ static struct platform_driver mpc5121_rtc_driver = {
 	.remove = __devexit_p(mpc5121_rtc_remove),
 };
 
-static int __init mpc5121_rtc_init(void)
-{
-	return platform_driver_register(&mpc5121_rtc_driver);
-}
-module_init(mpc5121_rtc_init);
-
-static void __exit mpc5121_rtc_exit(void)
-{
-	platform_driver_unregister(&mpc5121_rtc_driver);
-}
-module_exit(mpc5121_rtc_exit);
+module_platform_driver(mpc5121_rtc_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("John Rigby <jcrigby@gmail.com>");
diff --git a/drivers/rtc/rtc-mrst.c b/drivers/rtc/rtc-mrst.c
index bb21f443fb70..6cd6c7235344 100644
--- a/drivers/rtc/rtc-mrst.c
+++ b/drivers/rtc/rtc-mrst.c
@@ -537,18 +537,7 @@ static struct platform_driver vrtc_mrst_platform_driver = {
 	}
 };
 
-static int __init vrtc_mrst_init(void)
-{
-	return platform_driver_register(&vrtc_mrst_platform_driver);
-}
-
-static void __exit vrtc_mrst_exit(void)
-{
-	platform_driver_unregister(&vrtc_mrst_platform_driver);
-}
-
-module_init(vrtc_mrst_init);
-module_exit(vrtc_mrst_exit);
+module_platform_driver(vrtc_mrst_platform_driver);
 
 MODULE_AUTHOR("Jacob Pan; Feng Tang");
 MODULE_DESCRIPTION("Driver for Moorestown virtual RTC");
diff --git a/drivers/rtc/rtc-mxc.c b/drivers/rtc/rtc-mxc.c
index 39e41fbdf08b..5e1d64ee5228 100644
--- a/drivers/rtc/rtc-mxc.c
+++ b/drivers/rtc/rtc-mxc.c
@@ -155,7 +155,6 @@ static int rtc_update_alarm(struct device *dev, struct rtc_time *alrm)
 {
 	struct rtc_time alarm_tm, now_tm;
 	unsigned long now, time;
-	int ret;
 	struct platform_device *pdev = to_platform_device(dev);
 	struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
 	void __iomem *ioaddr = pdata->ioaddr;
@@ -168,21 +167,33 @@ static int rtc_update_alarm(struct device *dev, struct rtc_time *alrm)
 	alarm_tm.tm_hour = alrm->tm_hour;
 	alarm_tm.tm_min = alrm->tm_min;
 	alarm_tm.tm_sec = alrm->tm_sec;
-	rtc_tm_to_time(&now_tm, &now);
 	rtc_tm_to_time(&alarm_tm, &time);
 
-	if (time < now) {
-		time += 60 * 60 * 24;
-		rtc_time_to_tm(time, &alarm_tm);
-	}
-
-	ret = rtc_tm_to_time(&alarm_tm, &time);
-
 	/* clear all the interrupt status bits */
 	writew(readw(ioaddr + RTC_RTCISR), ioaddr + RTC_RTCISR);
 	set_alarm_or_time(dev, MXC_RTC_ALARM, time);
 
-	return ret;
+	return 0;
+}
+
+static void mxc_rtc_irq_enable(struct device *dev, unsigned int bit,
+				unsigned int enabled)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
+	void __iomem *ioaddr = pdata->ioaddr;
+	u32 reg;
+
+	spin_lock_irq(&pdata->rtc->irq_lock);
+	reg = readw(ioaddr + RTC_RTCIENR);
+
+	if (enabled)
+		reg |= bit;
+	else
+		reg &= ~bit;
+
+	writew(reg, ioaddr + RTC_RTCIENR);
+	spin_unlock_irq(&pdata->rtc->irq_lock);
 }
 
 /* This function is the RTC interrupt service routine. */
@@ -199,13 +210,12 @@ static irqreturn_t mxc_rtc_interrupt(int irq, void *dev_id)
 	/* clear interrupt sources */
 	writew(status, ioaddr + RTC_RTCISR);
 
-	/* clear alarm interrupt if it has occurred */
-	if (status & RTC_ALM_BIT)
-		status &= ~RTC_ALM_BIT;
-
 	/* update irq data & counter */
-	if (status & RTC_ALM_BIT)
+	if (status & RTC_ALM_BIT) {
 		events |= (RTC_AF | RTC_IRQF);
+		/* RTC alarm should be one-shot */
+		mxc_rtc_irq_enable(&pdev->dev, RTC_ALM_BIT, 0);
+	}
 
 	if (status & RTC_1HZ_BIT)
 		events |= (RTC_UF | RTC_IRQF);
@@ -213,9 +223,6 @@ static irqreturn_t mxc_rtc_interrupt(int irq, void *dev_id)
 	if (status & PIT_ALL_ON)
 		events |= (RTC_PF | RTC_IRQF);
 
-	if ((status & RTC_ALM_BIT) && rtc_valid_tm(&pdata->g_rtc_alarm))
-		rtc_update_alarm(&pdev->dev, &pdata->g_rtc_alarm);
-
 	rtc_update_irq(pdata->rtc, 1, events);
 	spin_unlock_irq(&pdata->rtc->irq_lock);
 
@@ -242,26 +249,6 @@ static void mxc_rtc_release(struct device *dev)
 	spin_unlock_irq(&pdata->rtc->irq_lock);
 }
 
-static void mxc_rtc_irq_enable(struct device *dev, unsigned int bit,
-				unsigned int enabled)
-{
-	struct platform_device *pdev = to_platform_device(dev);
-	struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
-	void __iomem *ioaddr = pdata->ioaddr;
-	u32 reg;
-
-	spin_lock_irq(&pdata->rtc->irq_lock);
-	reg = readw(ioaddr + RTC_RTCIENR);
-
-	if (enabled)
-		reg |= bit;
-	else
-		reg &= ~bit;
-
-	writew(reg, ioaddr + RTC_RTCIENR);
-	spin_unlock_irq(&pdata->rtc->irq_lock);
-}
-
 static int mxc_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled)
 {
 	mxc_rtc_irq_enable(dev, RTC_ALM_BIT, enabled);
@@ -290,6 +277,17 @@ static int mxc_rtc_read_time(struct device *dev, struct rtc_time *tm)
  */
 static int mxc_rtc_set_mmss(struct device *dev, unsigned long time)
 {
+	/*
+	 * TTC_DAYR register is 9-bit in MX1 SoC, save time and day of year only
+	 */
+	if (cpu_is_mx1()) {
+		struct rtc_time tm;
+
+		rtc_time_to_tm(time, &tm);
+		tm.tm_year = 70;
+		rtc_tm_to_time(&tm, &time);
+	}
+
 	/* Avoid roll-over from reading the different registers */
 	do {
 		set_alarm_or_time(dev, MXC_RTC_TIME, time);
@@ -324,21 +322,7 @@ static int mxc_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 	struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
 	int ret;
 
-	if (rtc_valid_tm(&alrm->time)) {
-		if (alrm->time.tm_sec > 59 ||
-		    alrm->time.tm_hour > 23 ||
-		    alrm->time.tm_min > 59)
-			return -EINVAL;
-
-		ret = rtc_update_alarm(dev, &alrm->time);
-	} else {
-		ret = rtc_valid_tm(&alrm->time);
-		if (ret)
-			return ret;
-
-		ret = rtc_update_alarm(dev, &alrm->time);
-	}
-
+	ret = rtc_update_alarm(dev, &alrm->time);
 	if (ret)
 		return ret;
 
@@ -424,6 +408,9 @@ static int __init mxc_rtc_probe(struct platform_device *pdev)
 		pdata->irq = -1;
 	}
 
+	if (pdata->irq >=0)
+		device_init_wakeup(&pdev->dev, 1);
+
 	rtc = rtc_device_register(pdev->name, &pdev->dev, &mxc_rtc_ops,
 				  THIS_MODULE);
 	if (IS_ERR(rtc)) {
@@ -459,9 +446,39 @@ static int __exit mxc_rtc_remove(struct platform_device *pdev)
 	return 0;
 }
 
+#ifdef CONFIG_PM
+static int mxc_rtc_suspend(struct device *dev)
+{
+	struct rtc_plat_data *pdata = dev_get_drvdata(dev);
+
+	if (device_may_wakeup(dev))
+		enable_irq_wake(pdata->irq);
+
+	return 0;
+}
+
+static int mxc_rtc_resume(struct device *dev)
+{
+	struct rtc_plat_data *pdata = dev_get_drvdata(dev);
+
+	if (device_may_wakeup(dev))
+		disable_irq_wake(pdata->irq);
+
+	return 0;
+}
+
+static struct dev_pm_ops mxc_rtc_pm_ops = {
+	.suspend	= mxc_rtc_suspend,
+	.resume		= mxc_rtc_resume,
+};
+#endif
+
 static struct platform_driver mxc_rtc_driver = {
 	.driver = {
 		   .name	= "mxc_rtc",
+#ifdef CONFIG_PM
+		   .pm		= &mxc_rtc_pm_ops,
+#endif
 		   .owner	= THIS_MODULE,
 	},
 	.remove		= __exit_p(mxc_rtc_remove),
diff --git a/drivers/rtc/rtc-pcf2123.c b/drivers/rtc/rtc-pcf2123.c
index 2ee3bbf7e5ea..b46c4004d8fe 100644
--- a/drivers/rtc/rtc-pcf2123.c
+++ b/drivers/rtc/rtc-pcf2123.c
@@ -340,7 +340,6 @@ static int __devexit pcf2123_remove(struct spi_device *spi)
 static struct spi_driver pcf2123_driver = {
 	.driver	= {
 			.name	= "rtc-pcf2123",
-			.bus	= &spi_bus_type,
 			.owner	= THIS_MODULE,
 	},
 	.probe	= pcf2123_probe,
diff --git a/drivers/rtc/rtc-pcf50633.c b/drivers/rtc/rtc-pcf50633.c
index 0c423892923c..a20202f9ee57 100644
--- a/drivers/rtc/rtc-pcf50633.c
+++ b/drivers/rtc/rtc-pcf50633.c
@@ -294,17 +294,7 @@ static struct platform_driver pcf50633_rtc_driver = {
 	.remove = __devexit_p(pcf50633_rtc_remove),
 };
 
-static int __init pcf50633_rtc_init(void)
-{
-	return platform_driver_register(&pcf50633_rtc_driver);
-}
-module_init(pcf50633_rtc_init);
-
-static void __exit pcf50633_rtc_exit(void)
-{
-	platform_driver_unregister(&pcf50633_rtc_driver);
-}
-module_exit(pcf50633_rtc_exit);
+module_platform_driver(pcf50633_rtc_driver);
 
 MODULE_DESCRIPTION("PCF50633 RTC driver");
 MODULE_AUTHOR("Balaji Rao <balajirrao@openmoko.org>");
diff --git a/drivers/rtc/rtc-pm8xxx.c b/drivers/rtc/rtc-pm8xxx.c
index d420e9d877e8..9f1d6bcbdf6c 100644
--- a/drivers/rtc/rtc-pm8xxx.c
+++ b/drivers/rtc/rtc-pm8xxx.c
@@ -532,17 +532,7 @@ static struct platform_driver pm8xxx_rtc_driver = {
 	},
 };
 
-static int __init pm8xxx_rtc_init(void)
-{
-	return platform_driver_register(&pm8xxx_rtc_driver);
-}
-module_init(pm8xxx_rtc_init);
-
-static void __exit pm8xxx_rtc_exit(void)
-{
-	platform_driver_unregister(&pm8xxx_rtc_driver);
-}
-module_exit(pm8xxx_rtc_exit);
+module_platform_driver(pm8xxx_rtc_driver);
 
 MODULE_ALIAS("platform:rtc-pm8xxx");
 MODULE_DESCRIPTION("PMIC8xxx RTC driver");
diff --git a/drivers/rtc/rtc-puv3.c b/drivers/rtc/rtc-puv3.c
index e4b6880aabd0..ab0acaeb2371 100644
--- a/drivers/rtc/rtc-puv3.c
+++ b/drivers/rtc/rtc-puv3.c
@@ -164,7 +164,7 @@ static int puv3_rtc_open(struct device *dev)
 	int ret;
 
 	ret = request_irq(puv3_rtc_alarmno, puv3_rtc_alarmirq,
-			  IRQF_DISABLED,  "pkunity-rtc alarm", rtc_dev);
+			0, "pkunity-rtc alarm", rtc_dev);
 
 	if (ret) {
 		dev_err(dev, "IRQ%d error %d\n", puv3_rtc_alarmno, ret);
@@ -172,7 +172,7 @@ static int puv3_rtc_open(struct device *dev)
 	}
 
 	ret = request_irq(puv3_rtc_tickno, puv3_rtc_tickirq,
-			  IRQF_DISABLED,  "pkunity-rtc tick", rtc_dev);
+			0, "pkunity-rtc tick", rtc_dev);
 
 	if (ret) {
 		dev_err(dev, "IRQ%d error %d\n", puv3_rtc_tickno, ret);
@@ -326,7 +326,7 @@ static int puv3_rtc_resume(struct platform_device *pdev)
 #define puv3_rtc_resume  NULL
 #endif
 
-static struct platform_driver puv3_rtcdrv = {
+static struct platform_driver puv3_rtc_driver = {
 	.probe		= puv3_rtc_probe,
 	.remove		= __devexit_p(puv3_rtc_remove),
 	.suspend	= puv3_rtc_suspend,
@@ -337,21 +337,7 @@ static struct platform_driver puv3_rtcdrv = {
 	}
 };
 
-static char __initdata banner[] = "PKUnity-v3 RTC, (c) 2009 PKUnity Co.\n";
-
-static int __init puv3_rtc_init(void)
-{
-	printk(banner);
-	return platform_driver_register(&puv3_rtcdrv);
-}
-
-static void __exit puv3_rtc_exit(void)
-{
-	platform_driver_unregister(&puv3_rtcdrv);
-}
-
-module_init(puv3_rtc_init);
-module_exit(puv3_rtc_exit);
+module_platform_driver(puv3_rtc_driver);
 
 MODULE_DESCRIPTION("RTC Driver for the PKUnity v3 chip");
 MODULE_AUTHOR("Hu Dongliang");
diff --git a/drivers/rtc/rtc-rs5c348.c b/drivers/rtc/rtc-rs5c348.c
index 971bc8e08da6..ce2ca8523ddd 100644
--- a/drivers/rtc/rtc-rs5c348.c
+++ b/drivers/rtc/rtc-rs5c348.c
@@ -229,7 +229,6 @@ static int __devexit rs5c348_remove(struct spi_device *spi)
 static struct spi_driver rs5c348_driver = {
 	.driver = {
 		.name	= "rtc-rs5c348",
-		.bus	= &spi_bus_type,
 		.owner	= THIS_MODULE,
 	},
 	.probe	= rs5c348_probe,
diff --git a/drivers/rtc/rtc-s3c.c b/drivers/rtc/rtc-s3c.c
index 5b979d9cc332..aef40bd2957b 100644
--- a/drivers/rtc/rtc-s3c.c
+++ b/drivers/rtc/rtc-s3c.c
@@ -25,6 +25,7 @@
 #include <linux/clk.h>
 #include <linux/log2.h>
 #include <linux/slab.h>
+#include <linux/of.h>
 
 #include <mach/hardware.h>
 #include <asm/uaccess.h>
@@ -507,7 +508,13 @@ static int __devinit s3c_rtc_probe(struct platform_device *pdev)
 		goto err_nortc;
 	}
 
-	s3c_rtc_cpu_type = platform_get_device_id(pdev)->driver_data;
+#ifdef CONFIG_OF
+	if (pdev->dev.of_node)
+		s3c_rtc_cpu_type = of_device_is_compatible(pdev->dev.of_node,
+			"samsung,s3c6410-rtc") ? TYPE_S3C64XX : TYPE_S3C2410;
+	else
+#endif
+		s3c_rtc_cpu_type = platform_get_device_id(pdev)->driver_data;
 
 	/* Check RTC Time */
 
@@ -629,6 +636,17 @@ static int s3c_rtc_resume(struct platform_device *pdev)
 #define s3c_rtc_resume  NULL
 #endif
 
+#ifdef CONFIG_OF
+static const struct of_device_id s3c_rtc_dt_match[] = {
+	{ .compatible = "samsung,s3c2410-rtc" },
+	{ .compatible = "samsung,s3c6410-rtc" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, s3c_rtc_dt_match);
+#else
+#define s3c_rtc_dt_match NULL
+#endif
+
 static struct platform_device_id s3c_rtc_driver_ids[] = {
 	{
 		.name		= "s3c2410-rtc",
@@ -651,24 +669,11 @@ static struct platform_driver s3c_rtc_driver = {
 	.driver		= {
 		.name	= "s3c-rtc",
 		.owner	= THIS_MODULE,
+		.of_match_table	= s3c_rtc_dt_match,
 	},
 };
 
-static char __initdata banner[] = "S3C24XX RTC, (c) 2004,2006 Simtec Electronics\n";
-
-static int __init s3c_rtc_init(void)
-{
-	printk(banner);
-	return platform_driver_register(&s3c_rtc_driver);
-}
-
-static void __exit s3c_rtc_exit(void)
-{
-	platform_driver_unregister(&s3c_rtc_driver);
-}
-
-module_init(s3c_rtc_init);
-module_exit(s3c_rtc_exit);
+module_platform_driver(s3c_rtc_driver);
 
 MODULE_DESCRIPTION("Samsung S3C RTC Driver");
 MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
diff --git a/drivers/rtc/rtc-sa1100.c b/drivers/rtc/rtc-sa1100.c
index 0b40bb88a884..4595d3e645a7 100644
--- a/drivers/rtc/rtc-sa1100.c
+++ b/drivers/rtc/rtc-sa1100.c
@@ -27,35 +27,42 @@
 #include <linux/init.h>
 #include <linux/fs.h>
 #include <linux/interrupt.h>
-#include <linux/string.h>
 #include <linux/pm.h>
-#include <linux/bitops.h>
+#include <linux/slab.h>
+#include <linux/clk.h>
+#include <linux/io.h>
 
 #include <mach/hardware.h>
 #include <asm/irq.h>
 
-#ifdef CONFIG_ARCH_PXA
-#include <mach/regs-rtc.h>
-#include <mach/regs-ost.h>
-#endif
-
 #define RTC_DEF_DIVIDER		(32768 - 1)
 #define RTC_DEF_TRIM		0
-
-static const unsigned long RTC_FREQ = 1024;
-static struct rtc_time rtc_alarm;
-static DEFINE_SPINLOCK(sa1100_rtc_lock);
-
-static inline int rtc_periodic_alarm(struct rtc_time *tm)
-{
-	return  (tm->tm_year == -1) ||
-		((unsigned)tm->tm_mon >= 12) ||
-		((unsigned)(tm->tm_mday - 1) >= 31) ||
-		((unsigned)tm->tm_hour > 23) ||
-		((unsigned)tm->tm_min > 59) ||
-		((unsigned)tm->tm_sec > 59);
-}
-
+#define RTC_FREQ		1024
+
+#define RCNR		0x00	/* RTC Count Register */
+#define RTAR		0x04	/* RTC Alarm Register */
+#define RTSR		0x08	/* RTC Status Register */
+#define RTTR		0x0c	/* RTC Timer Trim Register */
+
+#define RTSR_HZE	(1 << 3)	/* HZ interrupt enable */
+#define RTSR_ALE	(1 << 2)	/* RTC alarm interrupt enable */
+#define RTSR_HZ		(1 << 1)	/* HZ rising-edge detected */
+#define RTSR_AL		(1 << 0)	/* RTC alarm detected */
+
+#define rtc_readl(sa1100_rtc, reg)	\
+	readl_relaxed((sa1100_rtc)->base + (reg))
+#define rtc_writel(sa1100_rtc, reg, value)	\
+	writel_relaxed((value), (sa1100_rtc)->base + (reg))
+
+struct sa1100_rtc {
+	struct resource		*ress;
+	void __iomem		*base;
+	struct clk		*clk;
+	int			irq_1Hz;
+	int			irq_Alrm;
+	struct rtc_device	*rtc;
+	spinlock_t		lock;		/* Protects this structure */
+};
 /*
  * Calculate the next alarm time given the requested alarm time mask
  * and the current time.
@@ -83,46 +90,26 @@ static void rtc_next_alarm_time(struct rtc_time *next, struct rtc_time *now,
 	}
 }
 
-static int rtc_update_alarm(struct rtc_time *alrm)
-{
-	struct rtc_time alarm_tm, now_tm;
-	unsigned long now, time;
-	int ret;
-
-	do {
-		now = RCNR;
-		rtc_time_to_tm(now, &now_tm);
-		rtc_next_alarm_time(&alarm_tm, &now_tm, alrm);
-		ret = rtc_tm_to_time(&alarm_tm, &time);
-		if (ret != 0)
-			break;
-
-		RTSR = RTSR & (RTSR_HZE|RTSR_ALE|RTSR_AL);
-		RTAR = time;
-	} while (now != RCNR);
-
-	return ret;
-}
-
 static irqreturn_t sa1100_rtc_interrupt(int irq, void *dev_id)
 {
 	struct platform_device *pdev = to_platform_device(dev_id);
-	struct rtc_device *rtc = platform_get_drvdata(pdev);
+	struct sa1100_rtc *sa1100_rtc = platform_get_drvdata(pdev);
 	unsigned int rtsr;
 	unsigned long events = 0;
 
-	spin_lock(&sa1100_rtc_lock);
+	spin_lock(&sa1100_rtc->lock);
 
-	rtsr = RTSR;
 	/* clear interrupt sources */
-	RTSR = 0;
+	rtsr = rtc_readl(sa1100_rtc, RTSR);
+	rtc_writel(sa1100_rtc, RTSR, 0);
+
 	/* Fix for a nasty initialization problem the in SA11xx RTSR register.
 	 * See also the comments in sa1100_rtc_probe(). */
 	if (rtsr & (RTSR_ALE | RTSR_HZE)) {
 		/* This is the original code, before there was the if test
 		 * above. This code does not clear interrupts that were not
 		 * enabled. */
-		RTSR = (RTSR_AL | RTSR_HZ) & (rtsr >> 2);
+		rtc_writel(sa1100_rtc, RTSR, (RTSR_AL | RTSR_HZ) & (rtsr >> 2));
 	} else {
 		/* For some reason, it is possible to enter this routine
 		 * without interruptions enabled, it has been tested with
@@ -131,13 +118,13 @@ static irqreturn_t sa1100_rtc_interrupt(int irq, void *dev_id)
 		 * This situation leads to an infinite "loop" of interrupt
 		 * routine calling and as a result the processor seems to
 		 * lock on its first call to open(). */
-		RTSR = RTSR_AL | RTSR_HZ;
+		rtc_writel(sa1100_rtc, RTSR, (RTSR_AL | RTSR_HZ));
 	}
 
 	/* clear alarm interrupt if it has occurred */
 	if (rtsr & RTSR_AL)
 		rtsr &= ~RTSR_ALE;
-	RTSR = rtsr & (RTSR_ALE | RTSR_HZE);
+	rtc_writel(sa1100_rtc, RTSR, rtsr & (RTSR_ALE | RTSR_HZE));
 
 	/* update irq data & counter */
 	if (rtsr & RTSR_AL)
@@ -145,91 +132,100 @@ static irqreturn_t sa1100_rtc_interrupt(int irq, void *dev_id)
 	if (rtsr & RTSR_HZ)
 		events |= RTC_UF | RTC_IRQF;
 
-	rtc_update_irq(rtc, 1, events);
+	rtc_update_irq(sa1100_rtc->rtc, 1, events);
 
-	if (rtsr & RTSR_AL && rtc_periodic_alarm(&rtc_alarm))
-		rtc_update_alarm(&rtc_alarm);
-
-	spin_unlock(&sa1100_rtc_lock);
+	spin_unlock(&sa1100_rtc->lock);
 
 	return IRQ_HANDLED;
 }
 
 static int sa1100_rtc_open(struct device *dev)
 {
+	struct sa1100_rtc *sa1100_rtc = dev_get_drvdata(dev);
 	int ret;
-	struct platform_device *plat_dev = to_platform_device(dev);
-	struct rtc_device *rtc = platform_get_drvdata(plat_dev);
 
-	ret = request_irq(IRQ_RTC1Hz, sa1100_rtc_interrupt, IRQF_DISABLED,
-		"rtc 1Hz", dev);
+	ret = request_irq(sa1100_rtc->irq_1Hz, sa1100_rtc_interrupt,
+				IRQF_DISABLED, "rtc 1Hz", dev);
 	if (ret) {
-		dev_err(dev, "IRQ %d already in use.\n", IRQ_RTC1Hz);
+		dev_err(dev, "IRQ %d already in use.\n", sa1100_rtc->irq_1Hz);
 		goto fail_ui;
 	}
-	ret = request_irq(IRQ_RTCAlrm, sa1100_rtc_interrupt, IRQF_DISABLED,
-		"rtc Alrm", dev);
+	ret = request_irq(sa1100_rtc->irq_Alrm, sa1100_rtc_interrupt,
+				IRQF_DISABLED, "rtc Alrm", dev);
 	if (ret) {
-		dev_err(dev, "IRQ %d already in use.\n", IRQ_RTCAlrm);
+		dev_err(dev, "IRQ %d already in use.\n", sa1100_rtc->irq_Alrm);
 		goto fail_ai;
 	}
-	rtc->max_user_freq = RTC_FREQ;
-	rtc_irq_set_freq(rtc, NULL, RTC_FREQ);
+	sa1100_rtc->rtc->max_user_freq = RTC_FREQ;
+	rtc_irq_set_freq(sa1100_rtc->rtc, NULL, RTC_FREQ);
 
 	return 0;
 
  fail_ai:
-	free_irq(IRQ_RTC1Hz, dev);
+	free_irq(sa1100_rtc->irq_1Hz, dev);
  fail_ui:
 	return ret;
 }
 
 static void sa1100_rtc_release(struct device *dev)
 {
-	spin_lock_irq(&sa1100_rtc_lock);
-	RTSR = 0;
-	OIER &= ~OIER_E1;
-	OSSR = OSSR_M1;
-	spin_unlock_irq(&sa1100_rtc_lock);
-
-	free_irq(IRQ_RTCAlrm, dev);
-	free_irq(IRQ_RTC1Hz, dev);
+	struct sa1100_rtc *sa1100_rtc = dev_get_drvdata(dev);
+
+	spin_lock_irq(&sa1100_rtc->lock);
+	rtc_writel(sa1100_rtc, RTSR, 0);
+	spin_unlock_irq(&sa1100_rtc->lock);
+
+	free_irq(sa1100_rtc->irq_Alrm, dev);
+	free_irq(sa1100_rtc->irq_1Hz, dev);
 }
 
 static int sa1100_rtc_alarm_irq_enable(struct device *dev, unsigned int enabled)
 {
-	spin_lock_irq(&sa1100_rtc_lock);
+	struct sa1100_rtc *sa1100_rtc = dev_get_drvdata(dev);
+	unsigned int rtsr;
+
+	spin_lock_irq(&sa1100_rtc->lock);
+
+	rtsr = rtc_readl(sa1100_rtc, RTSR);
 	if (enabled)
-		RTSR |= RTSR_ALE;
+		rtsr |= RTSR_ALE;
 	else
-		RTSR &= ~RTSR_ALE;
-	spin_unlock_irq(&sa1100_rtc_lock);
+		rtsr &= ~RTSR_ALE;
+	rtc_writel(sa1100_rtc, RTSR, rtsr);
+
+	spin_unlock_irq(&sa1100_rtc->lock);
 	return 0;
 }
 
 static int sa1100_rtc_read_time(struct device *dev, struct rtc_time *tm)
 {
-	rtc_time_to_tm(RCNR, tm);
+	struct sa1100_rtc *sa1100_rtc = dev_get_drvdata(dev);
+
+	rtc_time_to_tm(rtc_readl(sa1100_rtc, RCNR), tm);
 	return 0;
 }
 
 static int sa1100_rtc_set_time(struct device *dev, struct rtc_time *tm)
 {
+	struct sa1100_rtc *sa1100_rtc = dev_get_drvdata(dev);
 	unsigned long time;
 	int ret;
 
 	ret = rtc_tm_to_time(tm, &time);
 	if (ret == 0)
-		RCNR = time;
+		rtc_writel(sa1100_rtc, RCNR, time);
 	return ret;
 }
 
 static int sa1100_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 {
-	u32	rtsr;
+	struct sa1100_rtc *sa1100_rtc = dev_get_drvdata(dev);
+	unsigned long time;
+	unsigned int rtsr;
 
-	memcpy(&alrm->time, &rtc_alarm, sizeof(struct rtc_time));
-	rtsr = RTSR;
+	time = rtc_readl(sa1100_rtc, RCNR);
+	rtc_time_to_tm(time, &alrm->time);
+	rtsr = rtc_readl(sa1100_rtc, RTSR);
 	alrm->enabled = (rtsr & RTSR_ALE) ? 1 : 0;
 	alrm->pending = (rtsr & RTSR_AL) ? 1 : 0;
 	return 0;
@@ -237,26 +233,39 @@ static int sa1100_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 
 static int sa1100_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alrm)
 {
-	int ret;
+	struct sa1100_rtc *sa1100_rtc = dev_get_drvdata(dev);
+	struct rtc_time now_tm, alarm_tm;
+	unsigned long time, alarm;
+	unsigned int rtsr;
 
-	spin_lock_irq(&sa1100_rtc_lock);
-	ret = rtc_update_alarm(&alrm->time);
-	if (ret == 0) {
-		if (alrm->enabled)
-			RTSR |= RTSR_ALE;
-		else
-			RTSR &= ~RTSR_ALE;
-	}
-	spin_unlock_irq(&sa1100_rtc_lock);
+	spin_lock_irq(&sa1100_rtc->lock);
 
-	return ret;
+	time = rtc_readl(sa1100_rtc, RCNR);
+	rtc_time_to_tm(time, &now_tm);
+	rtc_next_alarm_time(&alarm_tm, &now_tm, &alrm->time);
+	rtc_tm_to_time(&alarm_tm, &alarm);
+	rtc_writel(sa1100_rtc, RTAR, alarm);
+
+	rtsr = rtc_readl(sa1100_rtc, RTSR);
+	if (alrm->enabled)
+		rtsr |= RTSR_ALE;
+	else
+		rtsr &= ~RTSR_ALE;
+	rtc_writel(sa1100_rtc, RTSR, rtsr);
+
+	spin_unlock_irq(&sa1100_rtc->lock);
+
+	return 0;
 }
 
 static int sa1100_rtc_proc(struct device *dev, struct seq_file *seq)
 {
-	seq_printf(seq, "trim/divider\t\t: 0x%08x\n", (u32) RTTR);
-	seq_printf(seq, "RTSR\t\t\t: 0x%08x\n", (u32)RTSR);
+	struct sa1100_rtc *sa1100_rtc = dev_get_drvdata(dev);
 
+	seq_printf(seq, "trim/divider\t\t: 0x%08x\n",
+			rtc_readl(sa1100_rtc, RTTR));
+	seq_printf(seq, "RTSR\t\t\t: 0x%08x\n",
+			rtc_readl(sa1100_rtc, RTSR));
 	return 0;
 }
 
@@ -273,7 +282,51 @@ static const struct rtc_class_ops sa1100_rtc_ops = {
 
 static int sa1100_rtc_probe(struct platform_device *pdev)
 {
-	struct rtc_device *rtc;
+	struct sa1100_rtc *sa1100_rtc;
+	unsigned int rttr;
+	int ret;
+
+	sa1100_rtc = kzalloc(sizeof(struct sa1100_rtc), GFP_KERNEL);
+	if (!sa1100_rtc)
+		return -ENOMEM;
+
+	spin_lock_init(&sa1100_rtc->lock);
+	platform_set_drvdata(pdev, sa1100_rtc);
+
+	ret = -ENXIO;
+	sa1100_rtc->ress = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!sa1100_rtc->ress) {
+		dev_err(&pdev->dev, "No I/O memory resource defined\n");
+		goto err_ress;
+	}
+
+	sa1100_rtc->irq_1Hz = platform_get_irq(pdev, 0);
+	if (sa1100_rtc->irq_1Hz < 0) {
+		dev_err(&pdev->dev, "No 1Hz IRQ resource defined\n");
+		goto err_ress;
+	}
+	sa1100_rtc->irq_Alrm = platform_get_irq(pdev, 1);
+	if (sa1100_rtc->irq_Alrm < 0) {
+		dev_err(&pdev->dev, "No alarm IRQ resource defined\n");
+		goto err_ress;
+	}
+
+	ret = -ENOMEM;
+	sa1100_rtc->base = ioremap(sa1100_rtc->ress->start,
+				resource_size(sa1100_rtc->ress));
+	if (!sa1100_rtc->base) {
+		dev_err(&pdev->dev, "Unable to map pxa RTC I/O memory\n");
+		goto err_map;
+	}
+
+	sa1100_rtc->clk = clk_get(&pdev->dev, NULL);
+	if (IS_ERR(sa1100_rtc->clk)) {
+		dev_err(&pdev->dev, "failed to find rtc clock source\n");
+		ret = PTR_ERR(sa1100_rtc->clk);
+		goto err_clk;
+	}
+	clk_prepare(sa1100_rtc->clk);
+	clk_enable(sa1100_rtc->clk);
 
 	/*
 	 * According to the manual we should be able to let RTTR be zero
@@ -282,24 +335,24 @@ static int sa1100_rtc_probe(struct platform_device *pdev)
 	 * If the clock divider is uninitialized then reset it to the
 	 * default value to get the 1Hz clock.
 	 */
-	if (RTTR == 0) {
-		RTTR = RTC_DEF_DIVIDER + (RTC_DEF_TRIM << 16);
-		dev_warn(&pdev->dev, "warning: "
-			"initializing default clock divider/trim value\n");
+	if (rtc_readl(sa1100_rtc, RTTR) == 0) {
+		rttr = RTC_DEF_DIVIDER + (RTC_DEF_TRIM << 16);
+		rtc_writel(sa1100_rtc, RTTR, rttr);
+		dev_warn(&pdev->dev, "warning: initializing default clock"
+			 " divider/trim value\n");
 		/* The current RTC value probably doesn't make sense either */
-		RCNR = 0;
+		rtc_writel(sa1100_rtc, RCNR, 0);
 	}
 
 	device_init_wakeup(&pdev->dev, 1);
 
-	rtc = rtc_device_register(pdev->name, &pdev->dev, &sa1100_rtc_ops,
-		THIS_MODULE);
-
-	if (IS_ERR(rtc))
-		return PTR_ERR(rtc);
-
-	platform_set_drvdata(pdev, rtc);
-
+	sa1100_rtc->rtc = rtc_device_register(pdev->name, &pdev->dev,
+						&sa1100_rtc_ops, THIS_MODULE);
+	if (IS_ERR(sa1100_rtc->rtc)) {
+		dev_err(&pdev->dev, "Failed to register RTC device -> %d\n",
+			ret);
+		goto err_rtc_reg;
+	}
 	/* Fix for a nasty initialization problem the in SA11xx RTSR register.
 	 * See also the comments in sa1100_rtc_interrupt().
 	 *
@@ -322,33 +375,46 @@ static int sa1100_rtc_probe(struct platform_device *pdev)
 	 *
 	 * Notice that clearing bit 1 and 0 is accomplished by writting ONES to
 	 * the corresponding bits in RTSR. */
-	RTSR = RTSR_AL | RTSR_HZ;
+	rtc_writel(sa1100_rtc, RTSR, (RTSR_AL | RTSR_HZ));
 
 	return 0;
+
+err_rtc_reg:
+err_clk:
+	iounmap(sa1100_rtc->base);
+err_ress:
+err_map:
+	kfree(sa1100_rtc);
+	return ret;
 }
 
 static int sa1100_rtc_remove(struct platform_device *pdev)
 {
-	struct rtc_device *rtc = platform_get_drvdata(pdev);
-
-	if (rtc)
-		rtc_device_unregister(rtc);
+	struct sa1100_rtc *sa1100_rtc = platform_get_drvdata(pdev);
 
+	rtc_device_unregister(sa1100_rtc->rtc);
+	clk_disable(sa1100_rtc->clk);
+	clk_unprepare(sa1100_rtc->clk);
+	iounmap(sa1100_rtc->base);
 	return 0;
 }
 
 #ifdef CONFIG_PM
 static int sa1100_rtc_suspend(struct device *dev)
 {
+	struct sa1100_rtc *sa1100_rtc = dev_get_drvdata(dev);
+
 	if (device_may_wakeup(dev))
-		enable_irq_wake(IRQ_RTCAlrm);
+		enable_irq_wake(sa1100_rtc->irq_Alrm);
 	return 0;
 }
 
 static int sa1100_rtc_resume(struct device *dev)
 {
+	struct sa1100_rtc *sa1100_rtc = dev_get_drvdata(dev);
+
 	if (device_may_wakeup(dev))
-		disable_irq_wake(IRQ_RTCAlrm);
+		disable_irq_wake(sa1100_rtc->irq_Alrm);
 	return 0;
 }
 
@@ -369,18 +435,7 @@ static struct platform_driver sa1100_rtc_driver = {
 	},
 };
 
-static int __init sa1100_rtc_init(void)
-{
-	return platform_driver_register(&sa1100_rtc_driver);
-}
-
-static void __exit sa1100_rtc_exit(void)
-{
-	platform_driver_unregister(&sa1100_rtc_driver);
-}
-
-module_init(sa1100_rtc_init);
-module_exit(sa1100_rtc_exit);
+module_platform_driver(sa1100_rtc_driver);
 
 MODULE_AUTHOR("Richard Purdie <rpurdie@rpsys.net>");
 MODULE_DESCRIPTION("SA11x0/PXA2xx Realtime Clock Driver (RTC)");
diff --git a/drivers/rtc/rtc-spear.c b/drivers/rtc/rtc-spear.c
index 893bac2bb21b..19a28a671a8e 100644
--- a/drivers/rtc/rtc-spear.c
+++ b/drivers/rtc/rtc-spear.c
@@ -516,17 +516,7 @@ static struct platform_driver spear_rtc_driver = {
 	},
 };
 
-static int __init rtc_init(void)
-{
-	return platform_driver_register(&spear_rtc_driver);
-}
-module_init(rtc_init);
-
-static void __exit rtc_exit(void)
-{
-	platform_driver_unregister(&spear_rtc_driver);
-}
-module_exit(rtc_exit);
+module_platform_driver(spear_rtc_driver);
 
 MODULE_ALIAS("platform:rtc-spear");
 MODULE_AUTHOR("Rajeev Kumar <rajeev-dlh.kumar@st.com>");
diff --git a/drivers/rtc/rtc-stk17ta8.c b/drivers/rtc/rtc-stk17ta8.c
index ed3e9b599031..7621116bd20d 100644
--- a/drivers/rtc/rtc-stk17ta8.c
+++ b/drivers/rtc/rtc-stk17ta8.c
@@ -370,18 +370,7 @@ static struct platform_driver stk17ta8_rtc_driver = {
 	},
 };
 
-static __init int stk17ta8_init(void)
-{
-	return platform_driver_register(&stk17ta8_rtc_driver);
-}
-
-static __exit void stk17ta8_exit(void)
-{
-	platform_driver_unregister(&stk17ta8_rtc_driver);
-}
-
-module_init(stk17ta8_init);
-module_exit(stk17ta8_exit);
+module_platform_driver(stk17ta8_rtc_driver);
 
 MODULE_AUTHOR("Thomas Hommel <thomas.hommel@ge.com>");
 MODULE_DESCRIPTION("Simtek STK17TA8 RTC driver");
diff --git a/drivers/rtc/rtc-stmp3xxx.c b/drivers/rtc/rtc-stmp3xxx.c
index 7315068daa59..10287865e330 100644
--- a/drivers/rtc/rtc-stmp3xxx.c
+++ b/drivers/rtc/rtc-stmp3xxx.c
@@ -276,18 +276,7 @@ static struct platform_driver stmp3xxx_rtcdrv = {
 	},
 };
 
-static int __init stmp3xxx_rtc_init(void)
-{
-	return platform_driver_register(&stmp3xxx_rtcdrv);
-}
-
-static void __exit stmp3xxx_rtc_exit(void)
-{
-	platform_driver_unregister(&stmp3xxx_rtcdrv);
-}
-
-module_init(stmp3xxx_rtc_init);
-module_exit(stmp3xxx_rtc_exit);
+module_platform_driver(stmp3xxx_rtcdrv);
 
 MODULE_DESCRIPTION("STMP3xxx RTC Driver");
 MODULE_AUTHOR("dmitry pervushin <dpervushin@embeddedalley.com> and "
diff --git a/drivers/rtc/rtc-twl.c b/drivers/rtc/rtc-twl.c
index 20687d55e7a7..d43b4f6eb4e4 100644
--- a/drivers/rtc/rtc-twl.c
+++ b/drivers/rtc/rtc-twl.c
@@ -550,6 +550,11 @@ static int twl_rtc_resume(struct platform_device *pdev)
 #define twl_rtc_resume  NULL
 #endif
 
+static const struct of_device_id twl_rtc_of_match[] = {
+	{.compatible = "ti,twl4030-rtc", },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, twl_rtc_of_match);
 MODULE_ALIAS("platform:twl_rtc");
 
 static struct platform_driver twl4030rtc_driver = {
@@ -559,8 +564,9 @@ static struct platform_driver twl4030rtc_driver = {
 	.suspend	= twl_rtc_suspend,
 	.resume		= twl_rtc_resume,
 	.driver		= {
-		.owner	= THIS_MODULE,
-		.name	= "twl_rtc",
+		.owner		= THIS_MODULE,
+		.name		= "twl_rtc",
+		.of_match_table = twl_rtc_of_match,
 	},
 };
 
diff --git a/drivers/rtc/rtc-v3020.c b/drivers/rtc/rtc-v3020.c
index f71c3ce18036..bca5d677bc85 100644
--- a/drivers/rtc/rtc-v3020.c
+++ b/drivers/rtc/rtc-v3020.c
@@ -393,18 +393,7 @@ static struct platform_driver rtc_device_driver = {
 	},
 };
 
-static __init int v3020_init(void)
-{
-	return platform_driver_register(&rtc_device_driver);
-}
-
-static __exit void v3020_exit(void)
-{
-	platform_driver_unregister(&rtc_device_driver);
-}
-
-module_init(v3020_init);
-module_exit(v3020_exit);
+module_platform_driver(rtc_device_driver);
 
 MODULE_DESCRIPTION("V3020 RTC");
 MODULE_AUTHOR("Raphael Assenat");
diff --git a/drivers/rtc/rtc-vr41xx.c b/drivers/rtc/rtc-vr41xx.c
index c5698cda366a..fcbfdda2993b 100644
--- a/drivers/rtc/rtc-vr41xx.c
+++ b/drivers/rtc/rtc-vr41xx.c
@@ -405,15 +405,4 @@ static struct platform_driver rtc_platform_driver = {
 	},
 };
 
-static int __init vr41xx_rtc_init(void)
-{
-	return platform_driver_register(&rtc_platform_driver);
-}
-
-static void __exit vr41xx_rtc_exit(void)
-{
-	platform_driver_unregister(&rtc_platform_driver);
-}
-
-module_init(vr41xx_rtc_init);
-module_exit(vr41xx_rtc_exit);
+module_platform_driver(rtc_platform_driver);
diff --git a/drivers/rtc/rtc-vt8500.c b/drivers/rtc/rtc-vt8500.c
index f93f412423c6..9e94fb147c26 100644
--- a/drivers/rtc/rtc-vt8500.c
+++ b/drivers/rtc/rtc-vt8500.c
@@ -311,17 +311,7 @@ static struct platform_driver vt8500_rtc_driver = {
 	},
 };
 
-static int __init vt8500_rtc_init(void)
-{
-	return platform_driver_register(&vt8500_rtc_driver);
-}
-module_init(vt8500_rtc_init);
-
-static void __exit vt8500_rtc_exit(void)
-{
-	platform_driver_unregister(&vt8500_rtc_driver);
-}
-module_exit(vt8500_rtc_exit);
+module_platform_driver(vt8500_rtc_driver);
 
 MODULE_AUTHOR("Alexey Charkov <alchark@gmail.com>");
 MODULE_DESCRIPTION("VIA VT8500 SoC Realtime Clock Driver (RTC)");
diff --git a/drivers/rtc/rtc-wm831x.c b/drivers/rtc/rtc-wm831x.c
index bdc909bd56da..3b6e6a67e765 100644
--- a/drivers/rtc/rtc-wm831x.c
+++ b/drivers/rtc/rtc-wm831x.c
@@ -324,15 +324,6 @@ static irqreturn_t wm831x_alm_irq(int irq, void *data)
 	return IRQ_HANDLED;
 }
 
-static irqreturn_t wm831x_per_irq(int irq, void *data)
-{
-	struct wm831x_rtc *wm831x_rtc = data;
-
-	rtc_update_irq(wm831x_rtc->rtc, 1, RTC_IRQF | RTC_UF);
-
-	return IRQ_HANDLED;
-}
-
 static const struct rtc_class_ops wm831x_rtc_ops = {
 	.read_time = wm831x_rtc_readtime,
 	.set_mmss = wm831x_rtc_set_mmss,
@@ -405,11 +396,10 @@ static int wm831x_rtc_probe(struct platform_device *pdev)
 {
 	struct wm831x *wm831x = dev_get_drvdata(pdev->dev.parent);
 	struct wm831x_rtc *wm831x_rtc;
-	int per_irq = platform_get_irq_byname(pdev, "PER");
 	int alm_irq = platform_get_irq_byname(pdev, "ALM");
 	int ret = 0;
 
-	wm831x_rtc = kzalloc(sizeof(*wm831x_rtc), GFP_KERNEL);
+	wm831x_rtc = devm_kzalloc(&pdev->dev, sizeof(*wm831x_rtc), GFP_KERNEL);
 	if (wm831x_rtc == NULL)
 		return -ENOMEM;
 
@@ -433,14 +423,6 @@ static int wm831x_rtc_probe(struct platform_device *pdev)
 		goto err;
 	}
 
-	ret = request_threaded_irq(per_irq, NULL, wm831x_per_irq,
-				   IRQF_TRIGGER_RISING, "RTC period",
-				   wm831x_rtc);
-	if (ret != 0) {
-		dev_err(&pdev->dev, "Failed to request periodic IRQ %d: %d\n",
-			per_irq, ret);
-	}
-
 	ret = request_threaded_irq(alm_irq, NULL, wm831x_alm_irq,
 				   IRQF_TRIGGER_RISING, "RTC alarm",
 				   wm831x_rtc);
@@ -452,20 +434,16 @@ static int wm831x_rtc_probe(struct platform_device *pdev)
 	return 0;
 
 err:
-	kfree(wm831x_rtc);
 	return ret;
 }
 
 static int __devexit wm831x_rtc_remove(struct platform_device *pdev)
 {
 	struct wm831x_rtc *wm831x_rtc = platform_get_drvdata(pdev);
-	int per_irq = platform_get_irq_byname(pdev, "PER");
 	int alm_irq = platform_get_irq_byname(pdev, "ALM");
 
 	free_irq(alm_irq, wm831x_rtc);
-	free_irq(per_irq, wm831x_rtc);
 	rtc_device_unregister(wm831x_rtc->rtc);
-	kfree(wm831x_rtc);
 
 	return 0;
 }
@@ -490,17 +468,7 @@ static struct platform_driver wm831x_rtc_driver = {
 	},
 };
 
-static int __init wm831x_rtc_init(void)
-{
-	return platform_driver_register(&wm831x_rtc_driver);
-}
-module_init(wm831x_rtc_init);
-
-static void __exit wm831x_rtc_exit(void)
-{
-	platform_driver_unregister(&wm831x_rtc_driver);
-}
-module_exit(wm831x_rtc_exit);
+module_platform_driver(wm831x_rtc_driver);
 
 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
 MODULE_DESCRIPTION("RTC driver for the WM831x series PMICs");
diff --git a/drivers/rtc/rtc-wm8350.c b/drivers/rtc/rtc-wm8350.c
index 66421426e404..c2e52d15abb2 100644
--- a/drivers/rtc/rtc-wm8350.c
+++ b/drivers/rtc/rtc-wm8350.c
@@ -486,17 +486,7 @@ static struct platform_driver wm8350_rtc_driver = {
 	},
 };
 
-static int __init wm8350_rtc_init(void)
-{
-	return platform_driver_register(&wm8350_rtc_driver);
-}
-module_init(wm8350_rtc_init);
-
-static void __exit wm8350_rtc_exit(void)
-{
-	platform_driver_unregister(&wm8350_rtc_driver);
-}
-module_exit(wm8350_rtc_exit);
+module_platform_driver(wm8350_rtc_driver);
 
 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
 MODULE_DESCRIPTION("RTC driver for the WM8350");
diff --git a/drivers/s390/block/dasd_3990_erp.c b/drivers/s390/block/dasd_3990_erp.c
index 87a0cf160fe5..0326571e7ffa 100644
--- a/drivers/s390/block/dasd_3990_erp.c
+++ b/drivers/s390/block/dasd_3990_erp.c
@@ -1718,7 +1718,7 @@ dasd_3990_erp_action_1B_32(struct dasd_ccw_req * default_erp, char *sense)
 	erp->startdev = device;
 	erp->memdev = device;
 	erp->magic = default_erp->magic;
-	erp->expires = 0;
+	erp->expires = default_erp->expires;
 	erp->retries = 256;
 	erp->buildclk = get_clock();
 	erp->status = DASD_CQR_FILLED;
@@ -2363,7 +2363,7 @@ static struct dasd_ccw_req *dasd_3990_erp_add_erp(struct dasd_ccw_req *cqr)
 	erp->memdev   = device;
 	erp->block    = cqr->block;
 	erp->magic    = cqr->magic;
-	erp->expires  = 0;
+	erp->expires  = cqr->expires;
 	erp->retries  = 256;
 	erp->buildclk = get_clock();
 	erp->status = DASD_CQR_FILLED;
diff --git a/drivers/s390/block/dasd_alias.c b/drivers/s390/block/dasd_alias.c
index c388eda1e2b1..553b3c5abb0a 100644
--- a/drivers/s390/block/dasd_alias.c
+++ b/drivers/s390/block/dasd_alias.c
@@ -705,6 +705,16 @@ struct dasd_device *dasd_alias_get_start_dev(struct dasd_device *base_device)
 	if (lcu->pav == NO_PAV ||
 	    lcu->flags & (NEED_UAC_UPDATE | UPDATE_PENDING))
 		return NULL;
+	if (unlikely(!(private->features.feature[8] & 0x01))) {
+		/*
+		 * PAV enabled but prefix not, very unlikely
+		 * seems to be a lost pathgroup
+		 * use base device to do IO
+		 */
+		DBF_DEV_EVENT(DBF_ERR, base_device, "%s",
+			      "Prefix not enabled with PAV enabled\n");
+		return NULL;
+	}
 
 	spin_lock_irqsave(&lcu->lock, flags);
 	alias_device = group->next;
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c
index 6ab29680586a..bbcd5e9206ee 100644
--- a/drivers/s390/block/dasd_eckd.c
+++ b/drivers/s390/block/dasd_eckd.c
@@ -752,24 +752,13 @@ dasd_eckd_cdl_reclen(int recid)
 		return sizes_trk0[recid];
 	return LABEL_SIZE;
 }
-
-/*
- * Generate device unique id that specifies the physical device.
- */
-static int dasd_eckd_generate_uid(struct dasd_device *device)
+/* create unique id from private structure. */
+static void create_uid(struct dasd_eckd_private *private)
 {
-	struct dasd_eckd_private *private;
-	struct dasd_uid *uid;
 	int count;
-	unsigned long flags;
+	struct dasd_uid *uid;
 
-	private = (struct dasd_eckd_private *) device->private;
-	if (!private)
-		return -ENODEV;
-	if (!private->ned || !private->gneq)
-		return -ENODEV;
 	uid = &private->uid;
-	spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags);
 	memset(uid, 0, sizeof(struct dasd_uid));
 	memcpy(uid->vendor, private->ned->HDA_manufacturer,
 	       sizeof(uid->vendor) - 1);
@@ -792,6 +781,23 @@ static int dasd_eckd_generate_uid(struct dasd_device *device)
 				private->vdsneq->uit[count]);
 		}
 	}
+}
+
+/*
+ * Generate device unique id that specifies the physical device.
+ */
+static int dasd_eckd_generate_uid(struct dasd_device *device)
+{
+	struct dasd_eckd_private *private;
+	unsigned long flags;
+
+	private = (struct dasd_eckd_private *) device->private;
+	if (!private)
+		return -ENODEV;
+	if (!private->ned || !private->gneq)
+		return -ENODEV;
+	spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags);
+	create_uid(private);
 	spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags);
 	return 0;
 }
@@ -811,6 +817,21 @@ static int dasd_eckd_get_uid(struct dasd_device *device, struct dasd_uid *uid)
 	return -EINVAL;
 }
 
+/*
+ * compare device UID with data of a given dasd_eckd_private structure
+ * return 0 for match
+ */
+static int dasd_eckd_compare_path_uid(struct dasd_device *device,
+				      struct dasd_eckd_private *private)
+{
+	struct dasd_uid device_uid;
+
+	create_uid(private);
+	dasd_eckd_get_uid(device, &device_uid);
+
+	return memcmp(&device_uid, &private->uid, sizeof(struct dasd_uid));
+}
+
 static void dasd_eckd_fill_rcd_cqr(struct dasd_device *device,
 				   struct dasd_ccw_req *cqr,
 				   __u8 *rcd_buffer,
@@ -1005,59 +1026,120 @@ static int dasd_eckd_read_conf(struct dasd_device *device)
 	int conf_len, conf_data_saved;
 	int rc;
 	__u8 lpm, opm;
-	struct dasd_eckd_private *private;
+	struct dasd_eckd_private *private, path_private;
 	struct dasd_path *path_data;
+	struct dasd_uid *uid;
+	char print_path_uid[60], print_device_uid[60];
 
 	private = (struct dasd_eckd_private *) device->private;
 	path_data = &device->path_data;
 	opm = ccw_device_get_path_mask(device->cdev);
-	lpm = 0x80;
 	conf_data_saved = 0;
 	/* get configuration data per operational path */
 	for (lpm = 0x80; lpm; lpm>>= 1) {
-		if (lpm & opm) {
-			rc = dasd_eckd_read_conf_lpm(device, &conf_data,
-						     &conf_len, lpm);
-			if (rc && rc != -EOPNOTSUPP) {	/* -EOPNOTSUPP is ok */
-				DBF_EVENT_DEVID(DBF_WARNING, device->cdev,
-					  "Read configuration data returned "
-					  "error %d", rc);
-				return rc;
-			}
-			if (conf_data == NULL) {
-				DBF_EVENT_DEVID(DBF_WARNING, device->cdev, "%s",
-						"No configuration data "
-						"retrieved");
-				/* no further analysis possible */
-				path_data->opm |= lpm;
-				continue;	/* no error */
+		if (!(lpm & opm))
+			continue;
+		rc = dasd_eckd_read_conf_lpm(device, &conf_data,
+					     &conf_len, lpm);
+		if (rc && rc != -EOPNOTSUPP) {	/* -EOPNOTSUPP is ok */
+			DBF_EVENT_DEVID(DBF_WARNING, device->cdev,
+					"Read configuration data returned "
+					"error %d", rc);
+			return rc;
+		}
+		if (conf_data == NULL) {
+			DBF_EVENT_DEVID(DBF_WARNING, device->cdev, "%s",
+					"No configuration data "
+					"retrieved");
+			/* no further analysis possible */
+			path_data->opm |= lpm;
+			continue;	/* no error */
+		}
+		/* save first valid configuration data */
+		if (!conf_data_saved) {
+			kfree(private->conf_data);
+			private->conf_data = conf_data;
+			private->conf_len = conf_len;
+			if (dasd_eckd_identify_conf_parts(private)) {
+				private->conf_data = NULL;
+				private->conf_len = 0;
+				kfree(conf_data);
+				continue;
 			}
-			/* save first valid configuration data */
-			if (!conf_data_saved) {
-				kfree(private->conf_data);
-				private->conf_data = conf_data;
-				private->conf_len = conf_len;
-				if (dasd_eckd_identify_conf_parts(private)) {
-					private->conf_data = NULL;
-					private->conf_len = 0;
-					kfree(conf_data);
-					continue;
-				}
-				conf_data_saved++;
+			/*
+			 * build device UID that other path data
+			 * can be compared to it
+			 */
+			dasd_eckd_generate_uid(device);
+			conf_data_saved++;
+		} else {
+			path_private.conf_data = conf_data;
+			path_private.conf_len = DASD_ECKD_RCD_DATA_SIZE;
+			if (dasd_eckd_identify_conf_parts(
+				    &path_private)) {
+				path_private.conf_data = NULL;
+				path_private.conf_len = 0;
+				kfree(conf_data);
+				continue;
 			}
-			switch (dasd_eckd_path_access(conf_data, conf_len)) {
-			case 0x02:
-				path_data->npm |= lpm;
-				break;
-			case 0x03:
-				path_data->ppm |= lpm;
-				break;
+
+			if (dasd_eckd_compare_path_uid(
+				    device, &path_private)) {
+				uid = &path_private.uid;
+				if (strlen(uid->vduit) > 0)
+					snprintf(print_path_uid,
+						 sizeof(print_path_uid),
+						 "%s.%s.%04x.%02x.%s",
+						 uid->vendor, uid->serial,
+						 uid->ssid, uid->real_unit_addr,
+						 uid->vduit);
+				else
+					snprintf(print_path_uid,
+						 sizeof(print_path_uid),
+						 "%s.%s.%04x.%02x",
+						 uid->vendor, uid->serial,
+						 uid->ssid,
+						 uid->real_unit_addr);
+				uid = &private->uid;
+				if (strlen(uid->vduit) > 0)
+					snprintf(print_device_uid,
+						 sizeof(print_device_uid),
+						 "%s.%s.%04x.%02x.%s",
+						 uid->vendor, uid->serial,
+						 uid->ssid, uid->real_unit_addr,
+						 uid->vduit);
+				else
+					snprintf(print_device_uid,
+						 sizeof(print_device_uid),
+						 "%s.%s.%04x.%02x",
+						 uid->vendor, uid->serial,
+						 uid->ssid,
+						 uid->real_unit_addr);
+				dev_err(&device->cdev->dev,
+					"Not all channel paths lead to "
+					"the same device, path %02X leads to "
+					"device %s instead of %s\n", lpm,
+					print_path_uid, print_device_uid);
+				return -EINVAL;
 			}
-			path_data->opm |= lpm;
-			if (conf_data != private->conf_data)
-				kfree(conf_data);
+
+			path_private.conf_data = NULL;
+			path_private.conf_len = 0;
 		}
+		switch (dasd_eckd_path_access(conf_data, conf_len)) {
+		case 0x02:
+			path_data->npm |= lpm;
+			break;
+		case 0x03:
+			path_data->ppm |= lpm;
+			break;
+		}
+		path_data->opm |= lpm;
+
+		if (conf_data != private->conf_data)
+			kfree(conf_data);
 	}
+
 	return 0;
 }
 
@@ -1090,12 +1172,61 @@ static int verify_fcx_max_data(struct dasd_device *device, __u8 lpm)
 	return 0;
 }
 
+static int rebuild_device_uid(struct dasd_device *device,
+			      struct path_verification_work_data *data)
+{
+	struct dasd_eckd_private *private;
+	struct dasd_path *path_data;
+	__u8 lpm, opm;
+	int rc;
+
+	rc = -ENODEV;
+	private = (struct dasd_eckd_private *) device->private;
+	path_data = &device->path_data;
+	opm = device->path_data.opm;
+
+	for (lpm = 0x80; lpm; lpm >>= 1) {
+		if (!(lpm & opm))
+			continue;
+		memset(&data->rcd_buffer, 0, sizeof(data->rcd_buffer));
+		memset(&data->cqr, 0, sizeof(data->cqr));
+		data->cqr.cpaddr = &data->ccw;
+		rc = dasd_eckd_read_conf_immediately(device, &data->cqr,
+						     data->rcd_buffer,
+						     lpm);
+
+		if (rc) {
+			if (rc == -EOPNOTSUPP) /* -EOPNOTSUPP is ok */
+				continue;
+			DBF_EVENT_DEVID(DBF_WARNING, device->cdev,
+					"Read configuration data "
+					"returned error %d", rc);
+			break;
+		}
+		memcpy(private->conf_data, data->rcd_buffer,
+		       DASD_ECKD_RCD_DATA_SIZE);
+		if (dasd_eckd_identify_conf_parts(private)) {
+			rc = -ENODEV;
+		} else /* first valid path is enough */
+			break;
+	}
+
+	if (!rc)
+		rc = dasd_eckd_generate_uid(device);
+
+	return rc;
+}
+
 static void do_path_verification_work(struct work_struct *work)
 {
 	struct path_verification_work_data *data;
 	struct dasd_device *device;
+	struct dasd_eckd_private path_private;
+	struct dasd_uid *uid;
+	__u8 path_rcd_buf[DASD_ECKD_RCD_DATA_SIZE];
 	__u8 lpm, opm, npm, ppm, epm;
 	unsigned long flags;
+	char print_uid[60];
 	int rc;
 
 	data = container_of(work, struct path_verification_work_data, worker);
@@ -1112,64 +1243,129 @@ static void do_path_verification_work(struct work_struct *work)
 	ppm = 0;
 	epm = 0;
 	for (lpm = 0x80; lpm; lpm >>= 1) {
-		if (lpm & data->tbvpm) {
-			memset(data->rcd_buffer, 0, sizeof(data->rcd_buffer));
-			memset(&data->cqr, 0, sizeof(data->cqr));
-			data->cqr.cpaddr = &data->ccw;
-			rc = dasd_eckd_read_conf_immediately(device, &data->cqr,
-							     data->rcd_buffer,
-							     lpm);
-			if (!rc) {
-				switch (dasd_eckd_path_access(data->rcd_buffer,
-						     DASD_ECKD_RCD_DATA_SIZE)) {
-				case 0x02:
-					npm |= lpm;
-					break;
-				case 0x03:
-					ppm |= lpm;
-					break;
-				}
-				opm |= lpm;
-			} else if (rc == -EOPNOTSUPP) {
-				DBF_EVENT_DEVID(DBF_WARNING, device->cdev, "%s",
-				       "path verification: No configuration "
-				       "data retrieved");
-				opm |= lpm;
-			} else if (rc == -EAGAIN) {
-				DBF_EVENT_DEVID(DBF_WARNING, device->cdev, "%s",
+		if (!(lpm & data->tbvpm))
+			continue;
+		memset(&data->rcd_buffer, 0, sizeof(data->rcd_buffer));
+		memset(&data->cqr, 0, sizeof(data->cqr));
+		data->cqr.cpaddr = &data->ccw;
+		rc = dasd_eckd_read_conf_immediately(device, &data->cqr,
+						     data->rcd_buffer,
+						     lpm);
+		if (!rc) {
+			switch (dasd_eckd_path_access(data->rcd_buffer,
+						      DASD_ECKD_RCD_DATA_SIZE)
+				) {
+			case 0x02:
+				npm |= lpm;
+				break;
+			case 0x03:
+				ppm |= lpm;
+				break;
+			}
+			opm |= lpm;
+		} else if (rc == -EOPNOTSUPP) {
+			DBF_EVENT_DEVID(DBF_WARNING, device->cdev, "%s",
+					"path verification: No configuration "
+					"data retrieved");
+			opm |= lpm;
+		} else if (rc == -EAGAIN) {
+			DBF_EVENT_DEVID(DBF_WARNING, device->cdev, "%s",
 					"path verification: device is stopped,"
 					" try again later");
-				epm |= lpm;
-			} else {
-				dev_warn(&device->cdev->dev,
-					 "Reading device feature codes failed "
-					 "(rc=%d) for new path %x\n", rc, lpm);
-				continue;
-			}
-			if (verify_fcx_max_data(device, lpm)) {
+			epm |= lpm;
+		} else {
+			dev_warn(&device->cdev->dev,
+				 "Reading device feature codes failed "
+				 "(rc=%d) for new path %x\n", rc, lpm);
+			continue;
+		}
+		if (verify_fcx_max_data(device, lpm)) {
+			opm &= ~lpm;
+			npm &= ~lpm;
+			ppm &= ~lpm;
+			continue;
+		}
+
+		/*
+		 * save conf_data for comparison after
+		 * rebuild_device_uid may have changed
+		 * the original data
+		 */
+		memcpy(&path_rcd_buf, data->rcd_buffer,
+		       DASD_ECKD_RCD_DATA_SIZE);
+		path_private.conf_data = (void *) &path_rcd_buf;
+		path_private.conf_len = DASD_ECKD_RCD_DATA_SIZE;
+		if (dasd_eckd_identify_conf_parts(&path_private)) {
+			path_private.conf_data = NULL;
+			path_private.conf_len = 0;
+			continue;
+		}
+
+		/*
+		 * compare path UID with device UID only if at least
+		 * one valid path is left
+		 * in other case the device UID may have changed and
+		 * the first working path UID will be used as device UID
+		 */
+		if (device->path_data.opm &&
+		    dasd_eckd_compare_path_uid(device, &path_private)) {
+			/*
+			 * the comparison was not successful
+			 * rebuild the device UID with at least one
+			 * known path in case a z/VM hyperswap command
+			 * has changed the device
+			 *
+			 * after this compare again
+			 *
+			 * if either the rebuild or the recompare fails
+			 * the path can not be used
+			 */
+			if (rebuild_device_uid(device, data) ||
+			    dasd_eckd_compare_path_uid(
+				    device, &path_private)) {
+				uid = &path_private.uid;
+				if (strlen(uid->vduit) > 0)
+					snprintf(print_uid, sizeof(print_uid),
+						 "%s.%s.%04x.%02x.%s",
+						 uid->vendor, uid->serial,
+						 uid->ssid, uid->real_unit_addr,
+						 uid->vduit);
+				else
+					snprintf(print_uid, sizeof(print_uid),
+						 "%s.%s.%04x.%02x",
+						 uid->vendor, uid->serial,
+						 uid->ssid,
+						 uid->real_unit_addr);
+				dev_err(&device->cdev->dev,
+					"The newly added channel path %02X "
+					"will not be used because it leads "
+					"to a different device %s\n",
+					lpm, print_uid);
 				opm &= ~lpm;
 				npm &= ~lpm;
 				ppm &= ~lpm;
+				continue;
 			}
 		}
+
+		/*
+		 * There is a small chance that a path is lost again between
+		 * above path verification and the following modification of
+		 * the device opm mask. We could avoid that race here by using
+		 * yet another path mask, but we rather deal with this unlikely
+		 * situation in dasd_start_IO.
+		 */
+		spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags);
+		if (!device->path_data.opm && opm) {
+			device->path_data.opm = opm;
+			dasd_generic_path_operational(device);
+		} else
+			device->path_data.opm |= opm;
+		device->path_data.npm |= npm;
+		device->path_data.ppm |= ppm;
+		device->path_data.tbvpm |= epm;
+		spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags);
 	}
-	/*
-	 * There is a small chance that a path is lost again between
-	 * above path verification and the following modification of
-	 * the device opm mask. We could avoid that race here by using
-	 * yet another path mask, but we rather deal with this unlikely
-	 * situation in dasd_start_IO.
-	 */
-	spin_lock_irqsave(get_ccwdev_lock(device->cdev), flags);
-	if (!device->path_data.opm && opm) {
-		device->path_data.opm = opm;
-		dasd_generic_path_operational(device);
-	} else
-		device->path_data.opm |= opm;
-	device->path_data.npm |= npm;
-	device->path_data.ppm |= ppm;
-	device->path_data.tbvpm |= epm;
-	spin_unlock_irqrestore(get_ccwdev_lock(device->cdev), flags);
 
 	dasd_put_device(device);
 	if (data->isglobal)
@@ -1441,11 +1637,6 @@ dasd_eckd_check_characteristics(struct dasd_device *device)
 			device->default_expires = value;
 	}
 
-	/* Generate device unique id */
-	rc = dasd_eckd_generate_uid(device);
-	if (rc)
-		goto out_err1;
-
 	dasd_eckd_get_uid(device, &temp_uid);
 	if (temp_uid.type == UA_BASE_DEVICE) {
 		block = dasd_alloc_block();
@@ -2206,7 +2397,7 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_cmd_single(
 					   sizeof(struct PFX_eckd_data));
 	} else {
 		if (define_extent(ccw++, cqr->data, first_trk,
-				  last_trk, cmd, startdev) == -EAGAIN) {
+				  last_trk, cmd, basedev) == -EAGAIN) {
 			/* Clock not in sync and XRC is enabled.
 			 * Try again later.
 			 */
diff --git a/drivers/s390/char/tape_class.h b/drivers/s390/char/tape_class.h
index 9e32780c317f..ba2092f741d5 100644
--- a/drivers/s390/char/tape_class.h
+++ b/drivers/s390/char/tape_class.h
@@ -14,7 +14,6 @@
 #include <linux/module.h>
 #include <linux/fs.h>
 #include <linux/major.h>
-#include <linux/kobj_map.h>
 #include <linux/cdev.h>
 
 #include <linux/device.h>
diff --git a/drivers/s390/cio/qdio_setup.c b/drivers/s390/cio/qdio_setup.c
index 2acc01f90a6a..452989a7ec13 100644
--- a/drivers/s390/cio/qdio_setup.c
+++ b/drivers/s390/cio/qdio_setup.c
@@ -22,12 +22,9 @@
 static struct kmem_cache *qdio_q_cache;
 static struct kmem_cache *qdio_aob_cache;
 
-struct qaob *qdio_allocate_aob()
+struct qaob *qdio_allocate_aob(void)
 {
-	struct qaob *aob;
-
-	aob = kmem_cache_zalloc(qdio_aob_cache, GFP_ATOMIC);
-	return aob;
+	return kmem_cache_zalloc(qdio_aob_cache, GFP_ATOMIC);
 }
 EXPORT_SYMBOL_GPL(qdio_allocate_aob);
 
@@ -180,7 +177,8 @@ static void setup_queues(struct qdio_irq *irq_ptr,
 		setup_queues_misc(q, irq_ptr, qdio_init->input_handler, i);
 
 		q->is_input_q = 1;
-		q->u.in.queue_start_poll = qdio_init->queue_start_poll[i];
+		q->u.in.queue_start_poll = qdio_init->queue_start_poll_array ?
+				qdio_init->queue_start_poll_array[i] : NULL;
 
 		setup_storage_lists(q, irq_ptr, input_sbal_array, i);
 		input_sbal_array += QDIO_MAX_BUFFERS_PER_Q;
diff --git a/drivers/s390/crypto/zcrypt_pcixcc.c b/drivers/s390/crypto/zcrypt_pcixcc.c
index dd4737808e06..077b7d109fde 100644
--- a/drivers/s390/crypto/zcrypt_pcixcc.c
+++ b/drivers/s390/crypto/zcrypt_pcixcc.c
@@ -56,11 +56,6 @@
 #define PCIXCC_MAX_ICA_RESPONSE_SIZE 0x77c /* max size type86 v2 reply	    */
 
 #define PCIXCC_MAX_XCRB_MESSAGE_SIZE (12*1024)
-#define PCIXCC_MAX_XCRB_RESPONSE_SIZE PCIXCC_MAX_XCRB_MESSAGE_SIZE
-#define PCIXCC_MAX_XCRB_DATA_SIZE (11*1024)
-#define PCIXCC_MAX_XCRB_REPLY_SIZE (5*1024)
-
-#define PCIXCC_MAX_RESPONSE_SIZE PCIXCC_MAX_XCRB_RESPONSE_SIZE
 
 #define PCIXCC_CLEANUP_TIME	(15*HZ)
 
@@ -265,7 +260,7 @@ static int ICACRT_msg_to_type6CRT_msgX(struct zcrypt_device *zdev,
  * @ap_msg: pointer to AP message
  * @xcRB: pointer to user input data
  *
- * Returns 0 on success or -EFAULT.
+ * Returns 0 on success or -EFAULT, -EINVAL.
  */
 struct type86_fmt2_msg {
 	struct type86_hdr hdr;
@@ -295,19 +290,12 @@ static int XCRB_msg_to_type6CPRB_msgX(struct zcrypt_device *zdev,
 		CEIL4(xcRB->request_control_blk_length) +
 		xcRB->request_data_length;
 	if (ap_msg->length > PCIXCC_MAX_XCRB_MESSAGE_SIZE)
-		return -EFAULT;
-	if (CEIL4(xcRB->reply_control_blk_length) > PCIXCC_MAX_XCRB_REPLY_SIZE)
-		return -EFAULT;
-	if (CEIL4(xcRB->reply_data_length) > PCIXCC_MAX_XCRB_DATA_SIZE)
-		return -EFAULT;
-	replylen = CEIL4(xcRB->reply_control_blk_length) +
-		CEIL4(xcRB->reply_data_length) +
-		sizeof(struct type86_fmt2_msg);
-	if (replylen > PCIXCC_MAX_XCRB_RESPONSE_SIZE) {
-		xcRB->reply_control_blk_length = PCIXCC_MAX_XCRB_RESPONSE_SIZE -
-			(sizeof(struct type86_fmt2_msg) +
-			    CEIL4(xcRB->reply_data_length));
-	}
+		return -EINVAL;
+	replylen = sizeof(struct type86_fmt2_msg) +
+		CEIL4(xcRB->reply_control_blk_length) +
+		xcRB->reply_data_length;
+	if (replylen > PCIXCC_MAX_XCRB_MESSAGE_SIZE)
+		return -EINVAL;
 
 	/* prepare type6 header */
 	msg->hdr = static_type6_hdrX;
@@ -326,7 +314,7 @@ static int XCRB_msg_to_type6CPRB_msgX(struct zcrypt_device *zdev,
 		return -EFAULT;
 	if (msg->cprbx.cprb_len + sizeof(msg->hdr.function_code) >
 	    xcRB->request_control_blk_length)
-		return -EFAULT;
+		return -EINVAL;
 	function_code = ((unsigned char *)&msg->cprbx) + msg->cprbx.cprb_len;
 	memcpy(msg->hdr.function_code, function_code, sizeof(msg->hdr.function_code));
 
@@ -678,7 +666,7 @@ static void zcrypt_pcixcc_receive(struct ap_device *ap_dev,
 			break;
 		case PCIXCC_RESPONSE_TYPE_XCRB:
 			length = t86r->fmt2.offset2 + t86r->fmt2.count2;
-			length = min(PCIXCC_MAX_XCRB_RESPONSE_SIZE, length);
+			length = min(PCIXCC_MAX_XCRB_MESSAGE_SIZE, length);
 			memcpy(msg->message, reply->message, length);
 			break;
 		default:
@@ -1043,7 +1031,7 @@ static int zcrypt_pcixcc_probe(struct ap_device *ap_dev)
 	struct zcrypt_device *zdev;
 	int rc = 0;
 
-	zdev = zcrypt_device_alloc(PCIXCC_MAX_RESPONSE_SIZE);
+	zdev = zcrypt_device_alloc(PCIXCC_MAX_XCRB_MESSAGE_SIZE);
 	if (!zdev)
 		return -ENOMEM;
 	zdev->ap_dev = ap_dev;
diff --git a/drivers/s390/net/qeth_core_main.c b/drivers/s390/net/qeth_core_main.c
index 4fae1dc19951..9c3f38da4c01 100644
--- a/drivers/s390/net/qeth_core_main.c
+++ b/drivers/s390/net/qeth_core_main.c
@@ -4552,7 +4552,7 @@ static int qeth_qdio_establish(struct qeth_card *card)
 	init_data.no_output_qs           = card->qdio.no_out_queues;
 	init_data.input_handler          = card->discipline.input_handler;
 	init_data.output_handler         = card->discipline.output_handler;
-	init_data.queue_start_poll       = queue_start_poll;
+	init_data.queue_start_poll_array = queue_start_poll;
 	init_data.int_parm               = (unsigned long) card;
 	init_data.input_sbal_addr_array  = (void **) in_sbal_ptrs;
 	init_data.output_sbal_addr_array = (void **) out_sbal_ptrs;
diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c
index 797a43994b55..375756fa95cf 100644
--- a/drivers/scsi/be2iscsi/be_main.c
+++ b/drivers/scsi/be2iscsi/be_main.c
@@ -1105,7 +1105,6 @@ be_complete_io(struct beiscsi_conn *beiscsi_conn,
 	struct be_status_bhs *sts_bhs =
 				(struct be_status_bhs *)io_task->cmd_bhs;
 	struct iscsi_conn *conn = beiscsi_conn->conn;
-	unsigned int sense_len;
 	unsigned char *sense;
 	u32 resid = 0, exp_cmdsn, max_cmdsn;
 	u8 rsp, status, flags;
@@ -1153,9 +1152,11 @@ be_complete_io(struct beiscsi_conn *beiscsi_conn,
 	}
 
 	if (status == SAM_STAT_CHECK_CONDITION) {
+		u16 sense_len;
 		unsigned short *slen = (unsigned short *)sts_bhs->sense_info;
+
 		sense = sts_bhs->sense_info + sizeof(unsigned short);
-		sense_len =  cpu_to_be16(*slen);
+		sense_len = be16_to_cpu(*slen);
 		memcpy(task->sc->sense_buffer, sense,
 		       min_t(u16, sense_len, SCSI_SENSE_BUFFERSIZE));
 	}
diff --git a/drivers/scsi/bfa/bfa_defs.h b/drivers/scsi/bfa/bfa_defs.h
index 7b3d235d20b4..b5a1595cc0a5 100644
--- a/drivers/scsi/bfa/bfa_defs.h
+++ b/drivers/scsi/bfa/bfa_defs.h
@@ -902,7 +902,7 @@ struct sfp_mem_s {
 union sfp_xcvr_e10g_code_u {
 	u8		b;
 	struct {
-#ifdef __BIGENDIAN
+#ifdef __BIG_ENDIAN
 		u8	e10g_unall:1;   /* 10G Ethernet compliance */
 		u8	e10g_lrm:1;
 		u8	e10g_lr:1;
@@ -982,7 +982,7 @@ union sfp_xcvr_fc2_code_u {
 union sfp_xcvr_fc3_code_u {
 	u8		b;
 	struct {
-#ifdef __BIGENDIAN
+#ifdef __BIG_ENDIAN
 		u8	rsv4:1;
 		u8	mb800:1;    /* 800 Mbytes/sec */
 		u8	mb1600:1;   /* 1600 Mbytes/sec */
diff --git a/drivers/scsi/bfa/bfa_defs_svc.h b/drivers/scsi/bfa/bfa_defs_svc.h
index 863c6ba7d5eb..78963be2c4fb 100644
--- a/drivers/scsi/bfa/bfa_defs_svc.h
+++ b/drivers/scsi/bfa/bfa_defs_svc.h
@@ -34,22 +34,22 @@
 struct bfa_iocfc_intr_attr_s {
 	u8		coalesce;	/*  enable/disable coalescing */
 	u8		rsvd[3];
-	__be16	latency;	/*  latency in microseconds   */
-	__be16	delay;		/*  delay in microseconds     */
+	__be16		latency;	/*  latency in microseconds   */
+	__be16		delay;		/*  delay in microseconds     */
 };
 
 /*
  * IOC firmware configuraton
  */
 struct bfa_iocfc_fwcfg_s {
-	u16        num_fabrics;	/*  number of fabrics		*/
-	u16        num_lports;	/*  number of local lports	*/
-	u16        num_rports;	/*  number of remote ports	*/
-	u16        num_ioim_reqs;	/*  number of IO reqs		*/
-	u16        num_tskim_reqs;	/*  task management requests	*/
-	u16	   num_fwtio_reqs;	/* number of TM IO reqs in FW */
-	u16        num_fcxp_reqs;	/*  unassisted FC exchanges	*/
-	u16        num_uf_bufs;	/*  unsolicited recv buffers	*/
+	u16		num_fabrics;	/*  number of fabrics		*/
+	u16		num_lports;	/*  number of local lports	*/
+	u16		num_rports;	/*  number of remote ports	*/
+	u16		num_ioim_reqs;	/*  number of IO reqs		*/
+	u16		num_tskim_reqs;	/*  task management requests	*/
+	u16		num_fwtio_reqs;	/* number of TM IO reqs in FW   */
+	u16		num_fcxp_reqs;	/*  unassisted FC exchanges	*/
+	u16		num_uf_bufs;	/*  unsolicited recv buffers	*/
 	u8		num_cqs;
 	u8		fw_tick_res;	/*  FW clock resolution in ms */
 	u8		rsvd[2];
@@ -57,19 +57,19 @@ struct bfa_iocfc_fwcfg_s {
 #pragma pack()
 
 struct bfa_iocfc_drvcfg_s {
-	u16        num_reqq_elems;	/*  number of req queue elements */
-	u16        num_rspq_elems;	/*  number of rsp queue elements */
-	u16        num_sgpgs;	/*  number of total SG pages	  */
-	u16        num_sboot_tgts;	/*  number of SAN boot targets	  */
-	u16        num_sboot_luns;	/*  number of SAN boot luns	  */
-	u16	    ioc_recover;	/*  IOC recovery mode		  */
-	u16	    min_cfg;	/*  minimum configuration	  */
-	u16        path_tov;	/*  device path timeout	  */
-	u16		num_tio_reqs;   /*!< number of TM IO reqs	*/
+	u16		num_reqq_elems;	/*  number of req queue elements */
+	u16		num_rspq_elems;	/*  number of rsp queue elements */
+	u16		num_sgpgs;	/*  number of total SG pages	 */
+	u16		num_sboot_tgts;	/*  number of SAN boot targets	 */
+	u16		num_sboot_luns;	/*  number of SAN boot luns	 */
+	u16		ioc_recover;	/*  IOC recovery mode		 */
+	u16		min_cfg;	/*  minimum configuration	 */
+	u16		path_tov;	/*  device path timeout		*/
+	u16		num_tio_reqs;	/* number of TM IO reqs	*/
 	u8		port_mode;
 	u8		rsvd_a;
-	bfa_boolean_t   delay_comp; /*  delay completion of
-							failed inflight IOs */
+	bfa_boolean_t	delay_comp;	/* delay completion of failed
+					 * inflight IOs */
 	u16		num_ttsk_reqs;	 /* TM task management requests */
 	u32		rsvd;
 };
@@ -101,8 +101,8 @@ struct bfa_fw_ioim_stats_s {
 	u32	fw_frm_drop;		/*  f/w drop the frame */
 
 	u32	rec_timeout;		/*  FW rec timed out */
-	u32	error_rec;			/*  FW sending rec on
-							* an error condition*/
+	u32	error_rec;		/*  FW sending rec on
+					 *  an error condition*/
 	u32	wait_for_si;		/*  FW wait for SI */
 	u32	rec_rsp_inval;		/*  REC rsp invalid */
 	u32	seqr_io_abort;		/*  target does not know cmd so abort */
@@ -124,9 +124,9 @@ struct bfa_fw_ioim_stats_s {
 	u32	unexp_fcp_rsp;		/*  fcp response in wrong state */
 
 	u32	fcp_rsp_under_run;	/*  fcp rsp IO underrun */
-	u32        fcp_rsp_under_run_wr;   /*  fcp rsp IO underrun for write */
+	u32     fcp_rsp_under_run_wr;   /*  fcp rsp IO underrun for write */
 	u32	fcp_rsp_under_run_err;	/*  fcp rsp IO underrun error */
-	u32        fcp_rsp_resid_inval;    /*  invalid residue */
+	u32     fcp_rsp_resid_inval;    /*  invalid residue */
 	u32	fcp_rsp_over_run;	/*  fcp rsp IO overrun */
 	u32	fcp_rsp_over_run_err;	/*  fcp rsp IO overrun error */
 	u32	fcp_rsp_proto_err;	/*  protocol error in fcp rsp */
@@ -142,21 +142,20 @@ struct bfa_fw_ioim_stats_s {
 	u32	ioh_hit_class2_event;	/*  IOH hit class2 */
 	u32	ioh_miss_other_event;	/*  IOH miss other */
 	u32	ioh_seq_cnt_err_event;	/*  IOH seq cnt error */
-	u32	ioh_len_err_event;		/*  IOH len error - fcp_dl !=
-							* bytes xfered */
+	u32	ioh_len_err_event;	/*  IOH len error - fcp_dl !=
+					 *  bytes xfered */
 	u32	ioh_seq_len_err_event;	/*  IOH seq len error */
 	u32	ioh_data_oor_event;	/*  Data out of range */
 	u32	ioh_ro_ooo_event;	/*  Relative offset out of range */
 	u32	ioh_cpu_owned_event;	/*  IOH hit -iost owned by f/w */
 	u32	ioh_unexp_frame_event;	/*  unexpected frame received
-						 *   count */
+					 *  count */
 	u32	ioh_err_int;		/*  IOH error int during data-phase
-						 *   for scsi write
-						 */
+					 *  for scsi write */
 };
 
 struct bfa_fw_tio_stats_s {
-	u32	tio_conf_proc;	/* TIO CONF processed */
+	u32	tio_conf_proc;	    /* TIO CONF processed */
 	u32	tio_conf_drop;      /* TIO CONF dropped */
 	u32	tio_cleanup_req;    /* TIO cleanup requested */
 	u32	tio_cleanup_comp;   /* TIO cleanup completed */
@@ -164,34 +163,36 @@ struct bfa_fw_tio_stats_s {
 	u32	tio_abort_rsp_comp; /* TIO abort rsp completed */
 	u32	tio_abts_req;       /* TIO ABTS requested */
 	u32	tio_abts_ack;       /* TIO ABTS ack-ed */
-	u32	tio_abts_ack_nocomp; /* TIO ABTS ack-ed but not completed */
+	u32	tio_abts_ack_nocomp;/* TIO ABTS ack-ed but not completed */
 	u32	tio_abts_tmo;       /* TIO ABTS timeout */
 	u32	tio_snsdata_dma;    /* TIO sense data DMA */
-	u32	tio_rxwchan_wait; /* TIO waiting for RX wait channel */
-	u32	tio_rxwchan_avail; /* TIO RX wait channel available */
+	u32	tio_rxwchan_wait;   /* TIO waiting for RX wait channel */
+	u32	tio_rxwchan_avail;  /* TIO RX wait channel available */
 	u32	tio_hit_bls;        /* TIO IOH BLS event */
 	u32	tio_uf_recv;        /* TIO received UF */
-	u32	tio_rd_invalid_sm; /* TIO read reqst in wrong state machine */
-	u32	tio_wr_invalid_sm;/* TIO write reqst in wrong state machine */
+	u32	tio_rd_invalid_sm;  /* TIO read reqst in wrong state machine */
+	u32	tio_wr_invalid_sm;  /* TIO write reqst in wrong state machine */
 
-	u32	ds_rxwchan_wait; /* DS waiting for RX wait channel */
-	u32	ds_rxwchan_avail; /* DS RX wait channel available */
+	u32	ds_rxwchan_wait;    /* DS waiting for RX wait channel */
+	u32	ds_rxwchan_avail;   /* DS RX wait channel available */
 	u32	ds_unaligned_rd;    /* DS unaligned read */
-	u32	ds_rdcomp_invalid_sm; /* DS read completed in wrong state machine */
-	u32	ds_wrcomp_invalid_sm; /* DS write completed in wrong state machine */
+	u32	ds_rdcomp_invalid_sm; /* DS read completed in wrong state
+				       * machine */
+	u32	ds_wrcomp_invalid_sm; /* DS write completed in wrong state
+				       * machine */
 	u32	ds_flush_req;       /* DS flush requested */
 	u32	ds_flush_comp;      /* DS flush completed */
 	u32	ds_xfrdy_exp;       /* DS XFER_RDY expired */
 	u32	ds_seq_cnt_err;     /* DS seq cnt error */
 	u32	ds_seq_len_err;     /* DS seq len error */
 	u32	ds_data_oor;        /* DS data out of order */
-	u32	ds_hit_bls;     /* DS hit BLS */
+	u32	ds_hit_bls;	    /* DS hit BLS */
 	u32	ds_edtov_timer_exp; /* DS edtov expired */
 	u32	ds_cpu_owned;       /* DS cpu owned */
 	u32	ds_hit_class2;      /* DS hit class2 */
 	u32	ds_length_err;      /* DS length error */
 	u32	ds_ro_ooo_err;      /* DS relative offset out-of-order error */
-	u32	ds_rectov_timer_exp;    /* DS rectov expired */
+	u32	ds_rectov_timer_exp;/* DS rectov expired */
 	u32	ds_unexp_fr_err;    /* DS unexp frame error */
 };
 
@@ -208,119 +209,119 @@ struct bfa_fw_io_stats_s {
  */
 
 struct bfa_fw_port_fpg_stats_s {
-    u32    intr_evt;
-    u32    intr;
-    u32    intr_excess;
-    u32    intr_cause0;
-    u32    intr_other;
-    u32    intr_other_ign;
-    u32    sig_lost;
-    u32    sig_regained;
-    u32    sync_lost;
-    u32    sync_to;
-    u32    sync_regained;
-    u32    div2_overflow;
-    u32    div2_underflow;
-    u32    efifo_overflow;
-    u32    efifo_underflow;
-    u32    idle_rx;
-    u32    lrr_rx;
-    u32    lr_rx;
-    u32    ols_rx;
-    u32    nos_rx;
-    u32    lip_rx;
-    u32    arbf0_rx;
-    u32    arb_rx;
-    u32    mrk_rx;
-    u32    const_mrk_rx;
-    u32    prim_unknown;
+	u32    intr_evt;
+	u32    intr;
+	u32    intr_excess;
+	u32    intr_cause0;
+	u32    intr_other;
+	u32    intr_other_ign;
+	u32    sig_lost;
+	u32    sig_regained;
+	u32    sync_lost;
+	u32    sync_to;
+	u32    sync_regained;
+	u32    div2_overflow;
+	u32    div2_underflow;
+	u32    efifo_overflow;
+	u32    efifo_underflow;
+	u32    idle_rx;
+	u32    lrr_rx;
+	u32    lr_rx;
+	u32    ols_rx;
+	u32    nos_rx;
+	u32    lip_rx;
+	u32    arbf0_rx;
+	u32    arb_rx;
+	u32    mrk_rx;
+	u32    const_mrk_rx;
+	u32    prim_unknown;
 };
 
 
 struct bfa_fw_port_lksm_stats_s {
-    u32    hwsm_success;       /*  hwsm state machine success          */
-    u32    hwsm_fails;         /*  hwsm fails                          */
-    u32    hwsm_wdtov;         /*  hwsm timed out                      */
-    u32    swsm_success;       /*  swsm success                        */
-    u32    swsm_fails;         /*  swsm fails                          */
-    u32    swsm_wdtov;         /*  swsm timed out                      */
-    u32    busybufs;           /*  link init failed due to busybuf     */
-    u32    buf_waits;          /*  bufwait state entries               */
-    u32    link_fails;         /*  link failures                       */
-    u32    psp_errors;         /*  primitive sequence protocol errors  */
-    u32    lr_unexp;           /*  No. of times LR rx-ed unexpectedly  */
-    u32    lrr_unexp;          /*  No. of times LRR rx-ed unexpectedly */
-    u32    lr_tx;              /*  No. of times LR tx started          */
-    u32    lrr_tx;             /*  No. of times LRR tx started         */
-    u32    ols_tx;             /*  No. of times OLS tx started         */
-    u32    nos_tx;             /*  No. of times NOS tx started         */
-    u32    hwsm_lrr_rx;        /*  No. of times LRR rx-ed by HWSM      */
-    u32    hwsm_lr_rx;         /*  No. of times LR rx-ed by HWSM      */
-	u32	bbsc_lr;	/* LKSM LR tx for credit recovery	*/
+	u32    hwsm_success;       /*  hwsm state machine success          */
+	u32    hwsm_fails;         /*  hwsm fails                          */
+	u32    hwsm_wdtov;         /*  hwsm timed out                      */
+	u32    swsm_success;       /*  swsm success                        */
+	u32    swsm_fails;         /*  swsm fails                          */
+	u32    swsm_wdtov;         /*  swsm timed out                      */
+	u32    busybufs;           /*  link init failed due to busybuf     */
+	u32    buf_waits;          /*  bufwait state entries               */
+	u32    link_fails;         /*  link failures                       */
+	u32    psp_errors;         /*  primitive sequence protocol errors  */
+	u32    lr_unexp;           /*  No. of times LR rx-ed unexpectedly  */
+	u32    lrr_unexp;          /*  No. of times LRR rx-ed unexpectedly */
+	u32    lr_tx;              /*  No. of times LR tx started          */
+	u32    lrr_tx;             /*  No. of times LRR tx started         */
+	u32    ols_tx;             /*  No. of times OLS tx started         */
+	u32    nos_tx;             /*  No. of times NOS tx started         */
+	u32    hwsm_lrr_rx;        /*  No. of times LRR rx-ed by HWSM      */
+	u32    hwsm_lr_rx;         /*  No. of times LR rx-ed by HWSM       */
+	u32    bbsc_lr;		   /* LKSM LR tx for credit recovery       */
 };
 
 struct bfa_fw_port_snsm_stats_s {
-    u32    hwsm_success;       /*  Successful hwsm terminations        */
-    u32    hwsm_fails;         /*  hwsm fail count                     */
-    u32    hwsm_wdtov;         /*  hwsm timed out                      */
-    u32    swsm_success;       /*  swsm success                        */
-    u32    swsm_wdtov;         /*  swsm timed out                      */
-    u32    error_resets;       /*  error resets initiated by upsm      */
-    u32    sync_lost;          /*  Sync loss count                     */
-    u32    sig_lost;           /*  Signal loss count                   */
-	u32	asn8g_attempts;	/* SNSM HWSM at 8Gbps attempts */
+	u32    hwsm_success;       /*  Successful hwsm terminations        */
+	u32    hwsm_fails;         /*  hwsm fail count                     */
+	u32    hwsm_wdtov;         /*  hwsm timed out                      */
+	u32    swsm_success;       /*  swsm success                        */
+	u32    swsm_wdtov;         /*  swsm timed out                      */
+	u32    error_resets;       /*  error resets initiated by upsm      */
+	u32    sync_lost;          /*  Sync loss count                     */
+	u32    sig_lost;           /*  Signal loss count                   */
+	u32    asn8g_attempts;	   /* SNSM HWSM at 8Gbps attempts	   */
 };
 
 struct bfa_fw_port_physm_stats_s {
-    u32    module_inserts;     /*  Module insert count                 */
-    u32    module_xtracts;     /*  Module extracts count               */
-    u32    module_invalids;    /*  Invalid module inserted count       */
-    u32    module_read_ign;    /*  Module validation status ignored    */
-    u32    laser_faults;       /*  Laser fault count                   */
-    u32    rsvd;
+	u32    module_inserts;     /*  Module insert count                 */
+	u32    module_xtracts;     /*  Module extracts count               */
+	u32    module_invalids;    /*  Invalid module inserted count       */
+	u32    module_read_ign;    /*  Module validation status ignored    */
+	u32    laser_faults;       /*  Laser fault count                   */
+	u32    rsvd;
 };
 
 struct bfa_fw_fip_stats_s {
-    u32    vlan_req;           /*  vlan discovery requests             */
-    u32    vlan_notify;        /*  vlan notifications                  */
-    u32    vlan_err;           /*  vlan response error                 */
-    u32    vlan_timeouts;      /*  vlan disvoery timeouts              */
-    u32    vlan_invalids;      /*  invalid vlan in discovery advert.   */
-    u32    disc_req;           /*  Discovery solicit requests          */
-    u32    disc_rsp;           /*  Discovery solicit response          */
-    u32    disc_err;           /*  Discovery advt. parse errors        */
-    u32    disc_unsol;         /*  Discovery unsolicited               */
-    u32    disc_timeouts;      /*  Discovery timeouts                  */
-    u32    disc_fcf_unavail;   /*  Discovery FCF Not Avail.            */
-    u32    linksvc_unsupp;     /*  Unsupported link service req        */
-    u32    linksvc_err;        /*  Parse error in link service req     */
-    u32    logo_req;           /*  FIP logos received                  */
-    u32    clrvlink_req;       /*  Clear virtual link req              */
-    u32    op_unsupp;          /*  Unsupported FIP operation           */
-    u32    untagged;           /*  Untagged frames (ignored)           */
-    u32    invalid_version;    /*  Invalid FIP version                 */
+	u32    vlan_req;           /*  vlan discovery requests             */
+	u32    vlan_notify;        /*  vlan notifications                  */
+	u32    vlan_err;           /*  vlan response error                 */
+	u32    vlan_timeouts;      /*  vlan disvoery timeouts              */
+	u32    vlan_invalids;      /*  invalid vlan in discovery advert.   */
+	u32    disc_req;           /*  Discovery solicit requests          */
+	u32    disc_rsp;           /*  Discovery solicit response          */
+	u32    disc_err;           /*  Discovery advt. parse errors        */
+	u32    disc_unsol;         /*  Discovery unsolicited               */
+	u32    disc_timeouts;      /*  Discovery timeouts                  */
+	u32    disc_fcf_unavail;   /*  Discovery FCF Not Avail.            */
+	u32    linksvc_unsupp;     /*  Unsupported link service req        */
+	u32    linksvc_err;        /*  Parse error in link service req     */
+	u32    logo_req;           /*  FIP logos received                  */
+	u32    clrvlink_req;       /*  Clear virtual link req              */
+	u32    op_unsupp;          /*  Unsupported FIP operation           */
+	u32    untagged;           /*  Untagged frames (ignored)           */
+	u32    invalid_version;    /*  Invalid FIP version                 */
 };
 
 struct bfa_fw_lps_stats_s {
-    u32    mac_invalids;       /*  Invalid mac assigned                */
-    u32    rsvd;
+	u32    mac_invalids;       /*  Invalid mac assigned                */
+	u32    rsvd;
 };
 
 struct bfa_fw_fcoe_stats_s {
-    u32    cee_linkups;        /*  CEE link up count                   */
-    u32    cee_linkdns;        /*  CEE link down count                 */
-    u32    fip_linkups;        /*  FIP link up count                   */
-    u32    fip_linkdns;        /*  FIP link up count                   */
-    u32    fip_fails;          /*  FIP fail count                      */
-    u32    mac_invalids;       /*  Invalid mac assigned                */
+	u32    cee_linkups;        /*  CEE link up count                   */
+	u32    cee_linkdns;        /*  CEE link down count                 */
+	u32    fip_linkups;        /*  FIP link up count                   */
+	u32    fip_linkdns;        /*  FIP link up count                   */
+	u32    fip_fails;          /*  FIP fail count                      */
+	u32    mac_invalids;       /*  Invalid mac assigned                */
 };
 
 /*
  * IOC firmware FCoE port stats
  */
 struct bfa_fw_fcoe_port_stats_s {
-	struct bfa_fw_fcoe_stats_s  fcoe_stats;
-	struct bfa_fw_fip_stats_s   fip_stats;
+	struct bfa_fw_fcoe_stats_s		fcoe_stats;
+	struct bfa_fw_fip_stats_s		fip_stats;
 };
 
 /*
@@ -335,8 +336,8 @@ struct bfa_fw_fc_uport_stats_s {
  * IOC firmware FC port stats
  */
 union bfa_fw_fc_port_stats_s {
-	struct bfa_fw_fc_uport_stats_s	fc_stats;
-	struct bfa_fw_fcoe_port_stats_s	fcoe_stats;
+	struct bfa_fw_fc_uport_stats_s		fc_stats;
+	struct bfa_fw_fcoe_port_stats_s		fcoe_stats;
 };
 
 /*
@@ -366,25 +367,25 @@ struct bfa_fw_lpsm_stats_s {
  */
 struct bfa_fw_trunk_stats_s {
 	u32 emt_recvd;		/*  Trunk EMT received		*/
-	u32 emt_accepted;		/*  Trunk EMT Accepted		*/
-	u32 emt_rejected;		/*  Trunk EMT rejected		*/
+	u32 emt_accepted;	/*  Trunk EMT Accepted		*/
+	u32 emt_rejected;	/*  Trunk EMT rejected		*/
 	u32 etp_recvd;		/*  Trunk ETP received		*/
-	u32 etp_accepted;		/*  Trunk ETP Accepted		*/
-	u32 etp_rejected;		/*  Trunk ETP rejected		*/
+	u32 etp_accepted;	/*  Trunk ETP Accepted		*/
+	u32 etp_rejected;	/*  Trunk ETP rejected		*/
 	u32 lr_recvd;		/*  Trunk LR received		*/
-	u32 rsvd;			/*  padding for 64 bit alignment */
+	u32 rsvd;		/*  padding for 64 bit alignment */
 };
 
 struct bfa_fw_advsm_stats_s {
 	u32 flogi_sent;		/*  Flogi sent			*/
 	u32 flogi_acc_recvd;	/*  Flogi Acc received		*/
 	u32 flogi_rjt_recvd;	/*  Flogi rejects received	*/
-	u32 flogi_retries;		/*  Flogi retries		*/
+	u32 flogi_retries;	/*  Flogi retries		*/
 
 	u32 elp_recvd;		/*  ELP received		*/
-	u32 elp_accepted;		/*  ELP Accepted		*/
-	u32 elp_rejected;		/*  ELP rejected		*/
-	u32 elp_dropped;		/*  ELP dropped		*/
+	u32 elp_accepted;	/*  ELP Accepted		*/
+	u32 elp_rejected;	/*  ELP rejected		*/
+	u32 elp_dropped;	/*  ELP dropped			*/
 };
 
 /*
@@ -521,7 +522,7 @@ struct bfa_qos_vc_attr_s {
 	u16  total_vc_count;                    /*  Total VC Count */
 	u16  shared_credit;
 	u32  elp_opmode_flags;
-	struct bfa_qos_vc_info_s vc_info[BFA_QOS_MAX_VC];  /*   as many as
+	struct bfa_qos_vc_info_s vc_info[BFA_QOS_MAX_VC];  /* as many as
 							    * total_vc_count */
 };
 
@@ -531,16 +532,16 @@ struct bfa_qos_vc_attr_s {
 struct bfa_qos_stats_s {
 	u32	flogi_sent;		/*  QoS Flogi sent */
 	u32	flogi_acc_recvd;	/*  QoS Flogi Acc received */
-	u32	flogi_rjt_recvd; /*  QoS Flogi rejects received */
+	u32	flogi_rjt_recvd;	/*  QoS Flogi rejects received */
 	u32	flogi_retries;		/*  QoS Flogi retries */
 
 	u32	elp_recvd;		/*  QoS ELP received */
 	u32	elp_accepted;		/*  QoS ELP Accepted */
-	u32	elp_rejected;       /*  QoS ELP rejected */
-	u32	elp_dropped;        /*  QoS ELP dropped  */
+	u32	elp_rejected;		/*  QoS ELP rejected */
+	u32	elp_dropped;		/*  QoS ELP dropped  */
 
-	u32	qos_rscn_recvd;     /*  QoS RSCN received */
-	u32	rsvd;		    /* padding for 64 bit alignment */
+	u32	qos_rscn_recvd;		/*  QoS RSCN received */
+	u32	rsvd;			/* padding for 64 bit alignment */
 };
 
 /*
@@ -548,9 +549,9 @@ struct bfa_qos_stats_s {
  */
 struct bfa_fcoe_stats_s {
 	u64	secs_reset;	/*  Seconds since stats reset	     */
-	u64	cee_linkups;	/*  CEE link up		     */
+	u64	cee_linkups;	/*  CEE link up			     */
 	u64	cee_linkdns;	/*  CEE link down		     */
-	u64	fip_linkups;	/*  FIP link up		     */
+	u64	fip_linkups;	/*  FIP link up			     */
 	u64	fip_linkdns;	/*  FIP link down		     */
 	u64	fip_fails;	/*  FIP failures		     */
 	u64	mac_invalids;	/*  Invalid mac assignments	     */
@@ -560,38 +561,38 @@ struct bfa_fcoe_stats_s {
 	u64	vlan_timeouts;	/*  Vlan request timeouts	     */
 	u64	vlan_invalids;	/*  Vlan invalids		     */
 	u64	disc_req;	/*  Discovery requests		     */
-	u64	disc_rsp;	/*  Discovery responses	     */
+	u64	disc_rsp;	/*  Discovery responses		     */
 	u64	disc_err;	/*  Discovery error frames	     */
 	u64	disc_unsol;	/*  Discovery unsolicited	     */
 	u64	disc_timeouts;	/*  Discovery timeouts		     */
 	u64	disc_fcf_unavail; /*  Discovery FCF not avail	     */
-	u64	linksvc_unsupp;	/*  FIP link service req unsupp.    */
-	u64	linksvc_err;	/*  FIP link service req errors     */
+	u64	linksvc_unsupp;	/*  FIP link service req unsupp	     */
+	u64	linksvc_err;	/*  FIP link service req errors	     */
 	u64	logo_req;	/*  FIP logos received		     */
-	u64	clrvlink_req;	/*  Clear virtual link requests     */
+	u64	clrvlink_req;	/*  Clear virtual link requests	     */
 	u64	op_unsupp;	/*  FIP operation unsupp.	     */
-	u64	untagged;	/*  FIP untagged frames	     */
+	u64	untagged;	/*  FIP untagged frames		     */
 	u64	txf_ucast;	/*  Tx FCoE unicast frames	     */
-	u64	txf_ucast_vlan;	/*  Tx FCoE unicast vlan frames     */
+	u64	txf_ucast_vlan;	/*  Tx FCoE unicast vlan frames      */
 	u64	txf_ucast_octets; /*  Tx FCoE unicast octets	     */
 	u64	txf_mcast;	/*  Tx FCoE multicast frames	     */
-	u64	txf_mcast_vlan;	/*  Tx FCoE multicast vlan frames   */
+	u64	txf_mcast_vlan;	/*  Tx FCoE multicast vlan frames    */
 	u64	txf_mcast_octets; /*  Tx FCoE multicast octets	     */
 	u64	txf_bcast;	/*  Tx FCoE broadcast frames	     */
-	u64	txf_bcast_vlan;	/*  Tx FCoE broadcast vlan frames   */
+	u64	txf_bcast_vlan;	/*  Tx FCoE broadcast vlan frames    */
 	u64	txf_bcast_octets; /*  Tx FCoE broadcast octets	     */
-	u64	txf_timeout;	/*  Tx timeouts		     */
+	u64	txf_timeout;	  /*  Tx timeouts		     */
 	u64	txf_parity_errors; /*  Transmit parity err	     */
-	u64	txf_fid_parity_errors; /*  Transmit FID parity err  */
+	u64	txf_fid_parity_errors; /*  Transmit FID parity err   */
 	u64	rxf_ucast_octets; /*  Rx FCoE unicast octets	     */
 	u64	rxf_ucast;	/*  Rx FCoE unicast frames	     */
-	u64	rxf_ucast_vlan;	/*  Rx FCoE unicast vlan frames     */
+	u64	rxf_ucast_vlan;	/*  Rx FCoE unicast vlan frames	     */
 	u64	rxf_mcast_octets; /*  Rx FCoE multicast octets	     */
 	u64	rxf_mcast;	/*  Rx FCoE multicast frames	     */
-	u64	rxf_mcast_vlan;	/*  Rx FCoE multicast vlan frames   */
+	u64	rxf_mcast_vlan;	/*  Rx FCoE multicast vlan frames    */
 	u64	rxf_bcast_octets; /*  Rx FCoE broadcast octets	     */
 	u64	rxf_bcast;	/*  Rx FCoE broadcast frames	     */
-	u64	rxf_bcast_vlan;	/*  Rx FCoE broadcast vlan frames   */
+	u64	rxf_bcast_vlan;	/*  Rx FCoE broadcast vlan frames    */
 };
 
 /*
@@ -852,12 +853,12 @@ struct bfa_port_cfg_s {
 	u8	 tx_bbcredit;	/*  transmit buffer credits	*/
 	u8	 ratelimit;	/*  ratelimit enabled or not	*/
 	u8	 trl_def_speed;	/*  ratelimit default speed	*/
-	u8	bb_scn;		/*  BB_SCN value from FLOGI Exchg */
-	u8	bb_scn_state;	/*  Config state of BB_SCN */
-	u8	faa_state;	/*  FAA enabled/disabled        */
-	u8	rsvd[1];
-	u16 path_tov;	/*  device path timeout	*/
-	u16 q_depth;	/*  SCSI Queue depth		*/
+	u8	 bb_scn;	/*  BB_SCN value from FLOGI Exchg */
+	u8	 bb_scn_state;	/*  Config state of BB_SCN */
+	u8	 faa_state;	/*  FAA enabled/disabled        */
+	u8	 rsvd[1];
+	u16	 path_tov;	/*  device path timeout	*/
+	u16	 q_depth;	/*  SCSI Queue depth		*/
 };
 #pragma pack()
 
@@ -868,20 +869,21 @@ struct bfa_port_attr_s {
 	/*
 	 * Static fields
 	 */
-	wwn_t	   nwwn;		/*  node wwn */
-	wwn_t	   pwwn;		/*  port wwn */
-	wwn_t	   factorynwwn;	/*  factory node wwn */
-	wwn_t	   factorypwwn;	/*  factory port wwn */
-	enum fc_cos	cos_supported;	/*  supported class of services */
-	u32	rsvd;
+	wwn_t			nwwn;		/*  node wwn */
+	wwn_t			pwwn;		/*  port wwn */
+	wwn_t			factorynwwn;	/*  factory node wwn */
+	wwn_t			factorypwwn;	/*  factory port wwn */
+	enum fc_cos		cos_supported;	/*  supported class of
+						 *  services */
+	u32			rsvd;
 	struct fc_symname_s	port_symname;	/*  port symbolic name */
-	enum bfa_port_speed speed_supported; /*  supported speeds */
-	bfa_boolean_t   pbind_enabled;
+	enum bfa_port_speed	speed_supported; /* supported speeds */
+	bfa_boolean_t		pbind_enabled;
 
 	/*
 	 * Configured values
 	 */
-	struct bfa_port_cfg_s pport_cfg;	/*  pport cfg */
+	struct bfa_port_cfg_s	pport_cfg;	/*  pport cfg */
 
 	/*
 	 * Dynamic field - info from BFA
@@ -890,19 +892,20 @@ struct bfa_port_attr_s {
 	enum bfa_port_speed	speed;		/*  current speed */
 	enum bfa_port_topology	topology;	/*  current topology */
 	bfa_boolean_t		beacon;		/*  current beacon status */
-	bfa_boolean_t		link_e2e_beacon; /*  link beacon is on */
-	bfa_boolean_t	bbsc_op_status;	/* fc credit recovery oper state */
+	bfa_boolean_t		link_e2e_beacon; /* link beacon is on */
+	bfa_boolean_t		bbsc_op_status;	/* fc credit recovery oper
+						 * state */
 
 	/*
 	 * Dynamic field - info from FCS
 	 */
-	u32		pid;		/*  port ID */
+	u32			pid;		/*  port ID */
 	enum bfa_port_type	port_type;	/*  current topology */
-	u32		loopback;	/*  external loopback */
-	u32		authfail;	/*  auth fail state */
+	u32			loopback;	/*  external loopback */
+	u32			authfail;	/*  auth fail state */
 
 	/* FCoE specific  */
-	u16		fcoe_vlan;
+	u16			fcoe_vlan;
 	u8			rsvd1[2];
 };
 
@@ -910,48 +913,48 @@ struct bfa_port_attr_s {
  *	      Port FCP mappings.
  */
 struct bfa_port_fcpmap_s {
-	char		osdevname[256];
+	char	osdevname[256];
 	u32	bus;
 	u32	target;
 	u32	oslun;
 	u32	fcid;
-	wwn_t	   nwwn;
-	wwn_t	   pwwn;
+	wwn_t	nwwn;
+	wwn_t	pwwn;
 	u64	fcplun;
-	char		luid[256];
+	char	luid[256];
 };
 
 /*
  *	      Port RNID info.
  */
 struct bfa_port_rnid_s {
-	wwn_t	     wwn;
+	wwn_t	  wwn;
 	u32	  unittype;
 	u32	  portid;
 	u32	  attached_nodes_num;
 	u16	  ip_version;
 	u16	  udp_port;
-	u8	   ipaddr[16];
+	u8	  ipaddr[16];
 	u16	  rsvd;
 	u16	  topologydiscoveryflags;
 };
 
 #pragma pack(1)
 struct bfa_fcport_fcf_s {
-	wwn_t	   name;	   /*  FCF name		 */
-	wwn_t	   fabric_name;    /*  Fabric Name	      */
-	u8		fipenabled;	/*  FIP enabled or not */
-	u8		fipfailed;	/*  FIP failed or not	*/
-	u8		resv[2];
-	u8	 pri;	    /*  FCF priority	     */
-	u8	 version;	/*  FIP version used	 */
-	u8	 available;      /*  Available  for  login    */
-	u8	 fka_disabled;   /*  FKA is disabled	  */
-	u8	 maxsz_verified; /*  FCoE max size verified   */
-	u8	 fc_map[3];      /*  FC map		   */
-	__be16	 vlan;	   /*  FCoE vlan tag/priority   */
-	u32	fka_adv_per;    /*  FIP  ka advert. period   */
-	mac_t	   mac;	    /*  FCF mac		  */
+	wwn_t	name;		/*  FCF name		   */
+	wwn_t	fabric_name;    /*  Fabric Name		   */
+	u8	fipenabled;	/*  FIP enabled or not	   */
+	u8	fipfailed;	/*  FIP failed or not	   */
+	u8	resv[2];
+	u8	pri;		/*  FCF priority	   */
+	u8	version;	/*  FIP version used	   */
+	u8	available;      /*  Available for login    */
+	u8	fka_disabled;   /*  FKA is disabled	   */
+	u8	maxsz_verified; /*  FCoE max size verified */
+	u8	fc_map[3];      /*  FC map		   */
+	__be16	vlan;		/*  FCoE vlan tag/priority */
+	u32	fka_adv_per;    /*  FIP  ka advert. period */
+	mac_t	mac;		/*  FCF mac		   */
 };
 
 /*
@@ -981,7 +984,7 @@ struct bfa_port_link_s {
 	u8	 linkstate_rsn;	/*  bfa_port_linkstate_rsn_t */
 	u8	 topology;	/*  P2P/LOOP bfa_port_topology */
 	u8	 speed;		/*  Link speed (1/2/4/8 G) */
-	u32	linkstate_opt;  /*  Linkstate optional data (debug) */
+	u32	 linkstate_opt; /*  Linkstate optional data (debug) */
 	u8	 trunked;	/*  Trunked or not (1 or 0) */
 	u8	 resvd[3];
 	struct bfa_qos_attr_s  qos_attr;   /* QoS Attributes */
@@ -1035,7 +1038,7 @@ struct bfa_rport_hal_stats_s {
 	u32        sm_fwc_del;	    /*  fw create: delete events   */
 	u32        sm_fwc_off;	    /*  fw create: offline events  */
 	u32        sm_fwc_hwf;	    /*  fw create: IOC down        */
-	u32        sm_fwc_unexp;	    /*  fw create: exception events*/
+	u32        sm_fwc_unexp;    /*  fw create: exception events*/
 	u32        sm_on_off;	    /*  online: offline events     */
 	u32        sm_on_del;	    /*  online: delete events      */
 	u32        sm_on_hwf;	    /*  online: IOC down events    */
@@ -1043,25 +1046,25 @@ struct bfa_rport_hal_stats_s {
 	u32        sm_fwd_rsp;	    /*  fw delete: fw responses    */
 	u32        sm_fwd_del;	    /*  fw delete: delete events   */
 	u32        sm_fwd_hwf;	    /*  fw delete: IOC down events */
-	u32        sm_fwd_unexp;	    /*  fw delete: exception events*/
+	u32        sm_fwd_unexp;    /*  fw delete: exception events*/
 	u32        sm_off_del;	    /*  offline: delete events     */
 	u32        sm_off_on;	    /*  offline: online events     */
 	u32        sm_off_hwf;	    /*  offline: IOC down events   */
-	u32        sm_off_unexp;	    /*  offline: exception events  */
-	u32        sm_del_fwrsp;	    /*  delete: fw responses       */
+	u32        sm_off_unexp;    /*  offline: exception events  */
+	u32        sm_del_fwrsp;    /*  delete: fw responses       */
 	u32        sm_del_hwf;	    /*  delete: IOC down events    */
-	u32        sm_del_unexp;	    /*  delete: exception events   */
-	u32        sm_delp_fwrsp;	    /*  delete pend: fw responses  */
+	u32        sm_del_unexp;    /*  delete: exception events   */
+	u32        sm_delp_fwrsp;   /*  delete pend: fw responses  */
 	u32        sm_delp_hwf;	    /*  delete pend: IOC downs     */
-	u32        sm_delp_unexp;	    /*  delete pend: exceptions    */
-	u32        sm_offp_fwrsp;	    /*  off-pending: fw responses  */
+	u32        sm_delp_unexp;   /*  delete pend: exceptions    */
+	u32        sm_offp_fwrsp;   /*  off-pending: fw responses  */
 	u32        sm_offp_del;	    /*  off-pending: deletes       */
 	u32        sm_offp_hwf;	    /*  off-pending: IOC downs     */
-	u32        sm_offp_unexp;	    /*  off-pending: exceptions    */
+	u32        sm_offp_unexp;   /*  off-pending: exceptions    */
 	u32        sm_iocd_off;	    /*  IOC down: offline events   */
 	u32        sm_iocd_del;	    /*  IOC down: delete events    */
 	u32        sm_iocd_on;	    /*  IOC down: online events    */
-	u32        sm_iocd_unexp;	    /*  IOC down: exceptions       */
+	u32        sm_iocd_unexp;   /*  IOC down: exceptions       */
 	u32        rsvd;
 };
 #pragma pack(1)
@@ -1069,9 +1072,9 @@ struct bfa_rport_hal_stats_s {
  *  Rport's QoS attributes
  */
 struct bfa_rport_qos_attr_s {
-	u8			qos_priority;  /*  rport's QoS priority   */
-	u8			rsvd[3];
-	u32	       qos_flow_id;	  /*  QoS flow Id	 */
+	u8		qos_priority;	/*  rport's QoS priority   */
+	u8		rsvd[3];
+	u32		qos_flow_id;	/*  QoS flow Id	 */
 };
 #pragma pack()
 
diff --git a/drivers/scsi/bfa/bfa_ioc.c b/drivers/scsi/bfa/bfa_ioc.c
index 1ac5aecf25a6..eca7ab78085b 100644
--- a/drivers/scsi/bfa/bfa_ioc.c
+++ b/drivers/scsi/bfa/bfa_ioc.c
@@ -3727,11 +3727,11 @@ bfa_sfp_media_get(struct bfa_sfp_s *sfp)
 			 (xmtr_tech & SFP_XMTR_TECH_SA))
 			*media = BFA_SFP_MEDIA_SW;
 		/* Check 10G Ethernet Compilance code */
-		else if (e10g.b & 0x10)
+		else if (e10g.r.e10g_sr)
 			*media = BFA_SFP_MEDIA_SW;
-		else if (e10g.b & 0x60)
+		else if (e10g.r.e10g_lrm && e10g.r.e10g_lr)
 			*media = BFA_SFP_MEDIA_LW;
-		else if (e10g.r.e10g_unall & 0x80)
+		else if (e10g.r.e10g_unall)
 			*media = BFA_SFP_MEDIA_UNKNOWN;
 		else
 			bfa_trc(sfp, 0);
diff --git a/drivers/scsi/bfa/bfad_debugfs.c b/drivers/scsi/bfa/bfad_debugfs.c
index caca9b7c8309..439c012be763 100644
--- a/drivers/scsi/bfa/bfad_debugfs.c
+++ b/drivers/scsi/bfa/bfad_debugfs.c
@@ -557,8 +557,7 @@ bfad_debugfs_exit(struct bfad_port_s *port)
 		}
 	}
 
-	/*
-	 * Remove the pci_dev debugfs directory for the port */
+	/* Remove the pci_dev debugfs directory for the port */
 	if (port->port_debugfs_root) {
 		debugfs_remove(port->port_debugfs_root);
 		port->port_debugfs_root = NULL;
diff --git a/drivers/scsi/device_handler/scsi_dh.c b/drivers/scsi/device_handler/scsi_dh.c
index 23149b9e297c..48e46f5b77cc 100644
--- a/drivers/scsi/device_handler/scsi_dh.c
+++ b/drivers/scsi/device_handler/scsi_dh.c
@@ -28,7 +28,6 @@
 
 static DEFINE_SPINLOCK(list_lock);
 static LIST_HEAD(scsi_dh_list);
-static int scsi_dh_list_idx = 1;
 
 static struct scsi_device_handler *get_device_handler(const char *name)
 {
@@ -45,21 +44,6 @@ static struct scsi_device_handler *get_device_handler(const char *name)
 	return found;
 }
 
-static struct scsi_device_handler *get_device_handler_by_idx(int idx)
-{
-	struct scsi_device_handler *tmp, *found = NULL;
-
-	spin_lock(&list_lock);
-	list_for_each_entry(tmp, &scsi_dh_list, list) {
-		if (tmp->idx == idx) {
-			found = tmp;
-			break;
-		}
-	}
-	spin_unlock(&list_lock);
-	return found;
-}
-
 /*
  * device_handler_match_function - Match a device handler to a device
  * @sdev - SCSI device to be tested
@@ -84,23 +68,6 @@ device_handler_match_function(struct scsi_device *sdev)
 }
 
 /*
- * device_handler_match_devlist - Match a device handler to a device
- * @sdev - SCSI device to be tested
- *
- * Tests @sdev against all device_handler registered in the devlist.
- * Returns the found device handler or NULL if not found.
- */
-static struct scsi_device_handler *
-device_handler_match_devlist(struct scsi_device *sdev)
-{
-	int idx;
-
-	idx = scsi_get_device_flags_keyed(sdev, sdev->vendor, sdev->model,
-					  SCSI_DEVINFO_DH);
-	return get_device_handler_by_idx(idx);
-}
-
-/*
  * device_handler_match - Attach a device handler to a device
  * @scsi_dh - The device handler to match against or NULL
  * @sdev - SCSI device to be tested against @scsi_dh
@@ -116,8 +83,6 @@ device_handler_match(struct scsi_device_handler *scsi_dh,
 	struct scsi_device_handler *found_dh;
 
 	found_dh = device_handler_match_function(sdev);
-	if (!found_dh)
-		found_dh = device_handler_match_devlist(sdev);
 
 	if (scsi_dh && found_dh != scsi_dh)
 		found_dh = NULL;
@@ -361,25 +326,14 @@ static int scsi_dh_notifier_remove(struct device *dev, void *data)
  */
 int scsi_register_device_handler(struct scsi_device_handler *scsi_dh)
 {
-	int i;
 
 	if (get_device_handler(scsi_dh->name))
 		return -EBUSY;
 
 	spin_lock(&list_lock);
-	scsi_dh->idx = scsi_dh_list_idx++;
 	list_add(&scsi_dh->list, &scsi_dh_list);
 	spin_unlock(&list_lock);
 
-	for (i = 0; scsi_dh->devlist && scsi_dh->devlist[i].vendor; i++) {
-		scsi_dev_info_list_add_keyed(0,
-					scsi_dh->devlist[i].vendor,
-					scsi_dh->devlist[i].model,
-					NULL,
-					scsi_dh->idx,
-					SCSI_DEVINFO_DH);
-	}
-
 	bus_for_each_dev(&scsi_bus_type, NULL, scsi_dh, scsi_dh_notifier_add);
 	printk(KERN_INFO "%s: device handler registered\n", scsi_dh->name);
 
@@ -396,7 +350,6 @@ EXPORT_SYMBOL_GPL(scsi_register_device_handler);
  */
 int scsi_unregister_device_handler(struct scsi_device_handler *scsi_dh)
 {
-	int i;
 
 	if (!get_device_handler(scsi_dh->name))
 		return -ENODEV;
@@ -404,12 +357,6 @@ int scsi_unregister_device_handler(struct scsi_device_handler *scsi_dh)
 	bus_for_each_dev(&scsi_bus_type, NULL, scsi_dh,
 			 scsi_dh_notifier_remove);
 
-	for (i = 0; scsi_dh->devlist && scsi_dh->devlist[i].vendor; i++) {
-		scsi_dev_info_list_del_keyed(scsi_dh->devlist[i].vendor,
-					     scsi_dh->devlist[i].model,
-					     SCSI_DEVINFO_DH);
-	}
-
 	spin_lock(&list_lock);
 	list_del(&scsi_dh->list);
 	spin_unlock(&list_lock);
@@ -588,10 +535,6 @@ static int __init scsi_dh_init(void)
 {
 	int r;
 
-	r = scsi_dev_info_add_list(SCSI_DEVINFO_DH, "SCSI Device Handler");
-	if (r)
-		return r;
-
 	r = bus_register_notifier(&scsi_bus_type, &scsi_dh_nb);
 
 	if (!r)
@@ -606,7 +549,6 @@ static void __exit scsi_dh_exit(void)
 	bus_for_each_dev(&scsi_bus_type, NULL, NULL,
 			 scsi_dh_sysfs_attr_remove);
 	bus_unregister_notifier(&scsi_bus_type, &scsi_dh_nb);
-	scsi_dev_info_remove_list(SCSI_DEVINFO_DH);
 }
 
 module_init(scsi_dh_init);
diff --git a/drivers/scsi/device_handler/scsi_dh_emc.c b/drivers/scsi/device_handler/scsi_dh_emc.c
index 591186cf1896..e1c8be06de9d 100644
--- a/drivers/scsi/device_handler/scsi_dh_emc.c
+++ b/drivers/scsi/device_handler/scsi_dh_emc.c
@@ -629,6 +629,24 @@ static const struct scsi_dh_devlist clariion_dev_list[] = {
 	{NULL, NULL},
 };
 
+static bool clariion_match(struct scsi_device *sdev)
+{
+	int i;
+
+	if (scsi_device_tpgs(sdev))
+		return false;
+
+	for (i = 0; clariion_dev_list[i].vendor; i++) {
+		if (!strncmp(sdev->vendor, clariion_dev_list[i].vendor,
+			strlen(clariion_dev_list[i].vendor)) &&
+		    !strncmp(sdev->model, clariion_dev_list[i].model,
+			strlen(clariion_dev_list[i].model))) {
+			return true;
+		}
+	}
+	return false;
+}
+
 static int clariion_bus_attach(struct scsi_device *sdev);
 static void clariion_bus_detach(struct scsi_device *sdev);
 
@@ -642,6 +660,7 @@ static struct scsi_device_handler clariion_dh = {
 	.activate	= clariion_activate,
 	.prep_fn	= clariion_prep_fn,
 	.set_params	= clariion_set_params,
+	.match		= clariion_match,
 };
 
 static int clariion_bus_attach(struct scsi_device *sdev)
diff --git a/drivers/scsi/device_handler/scsi_dh_hp_sw.c b/drivers/scsi/device_handler/scsi_dh_hp_sw.c
index 0f86a18b157d..084062bb8ee9 100644
--- a/drivers/scsi/device_handler/scsi_dh_hp_sw.c
+++ b/drivers/scsi/device_handler/scsi_dh_hp_sw.c
@@ -320,6 +320,24 @@ static const struct scsi_dh_devlist hp_sw_dh_data_list[] = {
 	{NULL, NULL},
 };
 
+static bool hp_sw_match(struct scsi_device *sdev)
+{
+	int i;
+
+	if (scsi_device_tpgs(sdev))
+		return false;
+
+	for (i = 0; hp_sw_dh_data_list[i].vendor; i++) {
+		if (!strncmp(sdev->vendor, hp_sw_dh_data_list[i].vendor,
+			strlen(hp_sw_dh_data_list[i].vendor)) &&
+		    !strncmp(sdev->model, hp_sw_dh_data_list[i].model,
+			strlen(hp_sw_dh_data_list[i].model))) {
+			return true;
+		}
+	}
+	return false;
+}
+
 static int hp_sw_bus_attach(struct scsi_device *sdev);
 static void hp_sw_bus_detach(struct scsi_device *sdev);
 
@@ -331,6 +349,7 @@ static struct scsi_device_handler hp_sw_dh = {
 	.detach		= hp_sw_bus_detach,
 	.activate	= hp_sw_activate,
 	.prep_fn	= hp_sw_prep_fn,
+	.match		= hp_sw_match,
 };
 
 static int hp_sw_bus_attach(struct scsi_device *sdev)
diff --git a/drivers/scsi/device_handler/scsi_dh_rdac.c b/drivers/scsi/device_handler/scsi_dh_rdac.c
index 1d3127920063..841ebf4a6788 100644
--- a/drivers/scsi/device_handler/scsi_dh_rdac.c
+++ b/drivers/scsi/device_handler/scsi_dh_rdac.c
@@ -820,6 +820,24 @@ static const struct scsi_dh_devlist rdac_dev_list[] = {
 	{NULL, NULL},
 };
 
+static bool rdac_match(struct scsi_device *sdev)
+{
+	int i;
+
+	if (scsi_device_tpgs(sdev))
+		return false;
+
+	for (i = 0; rdac_dev_list[i].vendor; i++) {
+		if (!strncmp(sdev->vendor, rdac_dev_list[i].vendor,
+			strlen(rdac_dev_list[i].vendor)) &&
+		    !strncmp(sdev->model, rdac_dev_list[i].model,
+			strlen(rdac_dev_list[i].model))) {
+			return true;
+		}
+	}
+	return false;
+}
+
 static int rdac_bus_attach(struct scsi_device *sdev);
 static void rdac_bus_detach(struct scsi_device *sdev);
 
@@ -832,6 +850,7 @@ static struct scsi_device_handler rdac_dh = {
 	.attach = rdac_bus_attach,
 	.detach = rdac_bus_detach,
 	.activate = rdac_activate,
+	.match = rdac_match,
 };
 
 static int rdac_bus_attach(struct scsi_device *sdev)
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index 865d452542be..5140f5d0fd6b 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -293,12 +293,14 @@ static u32 unresettable_controller[] = {
 	0x3215103C, /* Smart Array E200i */
 	0x3237103C, /* Smart Array E500 */
 	0x323D103C, /* Smart Array P700m */
+	0x40800E11, /* Smart Array 5i */
 	0x409C0E11, /* Smart Array 6400 */
 	0x409D0E11, /* Smart Array 6400 EM */
 };
 
 /* List of controllers which cannot even be soft reset */
 static u32 soft_unresettable_controller[] = {
+	0x40800E11, /* Smart Array 5i */
 	/* Exclude 640x boards.  These are two pci devices in one slot
 	 * which share a battery backed cache module.  One controls the
 	 * cache, the other accesses the cache through the one that controls
@@ -4072,10 +4074,10 @@ static int hpsa_request_irq(struct ctlr_info *h,
 
 	if (h->msix_vector || h->msi_vector)
 		rc = request_irq(h->intr[h->intr_mode], msixhandler,
-				IRQF_DISABLED, h->devname, h);
+				0, h->devname, h);
 	else
 		rc = request_irq(h->intr[h->intr_mode], intxhandler,
-				IRQF_DISABLED, h->devname, h);
+				IRQF_SHARED, h->devname, h);
 	if (rc) {
 		dev_err(&h->pdev->dev, "unable to get irq %d for %s\n",
 		       h->intr[h->intr_mode], h->devname);
diff --git a/drivers/scsi/lpfc/lpfc.h b/drivers/scsi/lpfc/lpfc.h
index bb4c8e0584e2..825f9307417a 100644
--- a/drivers/scsi/lpfc/lpfc.h
+++ b/drivers/scsi/lpfc/lpfc.h
@@ -247,18 +247,6 @@ struct lpfc_stats {
 	uint32_t fcpLocalErr;
 };
 
-enum sysfs_mbox_state {
-	SMBOX_IDLE,
-	SMBOX_WRITING,
-	SMBOX_READING
-};
-
-struct lpfc_sysfs_mbox {
-	enum sysfs_mbox_state state;
-	size_t                offset;
-	struct lpfcMboxq *    mbox;
-};
-
 struct lpfc_hba;
 
 
@@ -783,8 +771,6 @@ struct lpfc_hba {
 	uint64_t bg_apptag_err_cnt;
 	uint64_t bg_reftag_err_cnt;
 
-	struct lpfc_sysfs_mbox sysfs_mbox;
-
 	/* fastpath list. */
 	spinlock_t scsi_buf_list_lock;
 	struct list_head lpfc_scsi_buf_list;
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index d0ebaeb7ef60..f6697cb0e216 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -351,10 +351,23 @@ lpfc_fwrev_show(struct device *dev, struct device_attribute *attr,
 	struct Scsi_Host  *shost = class_to_shost(dev);
 	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 	struct lpfc_hba   *phba = vport->phba;
+	uint32_t if_type;
+	uint8_t sli_family;
 	char fwrev[32];
+	int len;
 
 	lpfc_decode_firmware_rev(phba, fwrev, 1);
-	return snprintf(buf, PAGE_SIZE, "%s, sli-%d\n", fwrev, phba->sli_rev);
+	if_type = phba->sli4_hba.pc_sli4_params.if_type;
+	sli_family = phba->sli4_hba.pc_sli4_params.sli_family;
+
+	if (phba->sli_rev < LPFC_SLI_REV4)
+		len = snprintf(buf, PAGE_SIZE, "%s, sli-%d\n",
+			       fwrev, phba->sli_rev);
+	else
+		len = snprintf(buf, PAGE_SIZE, "%s, sli-%d:%d:%x\n",
+			       fwrev, phba->sli_rev, if_type, sli_family);
+
+	return len;
 }
 
 /**
@@ -488,6 +501,34 @@ lpfc_link_state_show(struct device *dev, struct device_attribute *attr,
 }
 
 /**
+ * lpfc_sli4_protocol_show - Return the fip mode of the HBA
+ * @dev: class unused variable.
+ * @attr: device attribute, not used.
+ * @buf: on return contains the module description text.
+ *
+ * Returns: size of formatted string.
+ **/
+static ssize_t
+lpfc_sli4_protocol_show(struct device *dev, struct device_attribute *attr,
+			char *buf)
+{
+	struct Scsi_Host *shost = class_to_shost(dev);
+	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
+	struct lpfc_hba *phba = vport->phba;
+
+	if (phba->sli_rev < LPFC_SLI_REV4)
+		return snprintf(buf, PAGE_SIZE, "fc\n");
+
+	if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL) {
+		if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_GE)
+			return snprintf(buf, PAGE_SIZE, "fcoe\n");
+		if (phba->sli4_hba.lnk_info.lnk_tp == LPFC_LNK_TYPE_FC)
+			return snprintf(buf, PAGE_SIZE, "fc\n");
+	}
+	return snprintf(buf, PAGE_SIZE, "unknown\n");
+}
+
+/**
  * lpfc_link_state_store - Transition the link_state on an HBA port
  * @dev: class device that is converted into a Scsi_host.
  * @attr: device attribute, not used.
@@ -773,7 +814,12 @@ lpfc_issue_reset(struct device *dev, struct device_attribute *attr,
  * the readyness after performing a firmware reset.
  *
  * Returns:
- * zero for success
+ * zero for success, -EPERM when port does not have privilage to perform the
+ * reset, -EIO when port timeout from recovering from the reset.
+ *
+ * Note:
+ * As the caller will interpret the return code by value, be careful in making
+ * change or addition to return codes.
  **/
 int
 lpfc_sli4_pdev_status_reg_wait(struct lpfc_hba *phba)
@@ -826,9 +872,11 @@ lpfc_sli4_pdev_reg_request(struct lpfc_hba *phba, uint32_t opcode)
 {
 	struct completion online_compl;
 	struct pci_dev *pdev = phba->pcidev;
+	uint32_t before_fc_flag;
+	uint32_t sriov_nr_virtfn;
 	uint32_t reg_val;
-	int status = 0;
-	int rc;
+	int status = 0, rc = 0;
+	int job_posted = 1, sriov_err;
 
 	if (!phba->cfg_enable_hba_reset)
 		return -EACCES;
@@ -838,6 +886,10 @@ lpfc_sli4_pdev_reg_request(struct lpfc_hba *phba, uint32_t opcode)
 	     LPFC_SLI_INTF_IF_TYPE_2))
 		return -EPERM;
 
+	/* Keep state if we need to restore back */
+	before_fc_flag = phba->pport->fc_flag;
+	sriov_nr_virtfn = phba->cfg_sriov_nr_virtfn;
+
 	/* Disable SR-IOV virtual functions if enabled */
 	if (phba->cfg_sriov_nr_virtfn) {
 		pci_disable_sriov(pdev);
@@ -869,21 +921,44 @@ lpfc_sli4_pdev_reg_request(struct lpfc_hba *phba, uint32_t opcode)
 	/* delay driver action following IF_TYPE_2 reset */
 	rc = lpfc_sli4_pdev_status_reg_wait(phba);
 
-	if (rc)
+	if (rc == -EPERM) {
+		/* no privilage for reset, restore if needed */
+		if (before_fc_flag & FC_OFFLINE_MODE)
+			goto out;
+	} else if (rc == -EIO) {
+		/* reset failed, there is nothing more we can do */
 		return rc;
+	}
+
+	/* keep the original port state */
+	if (before_fc_flag & FC_OFFLINE_MODE)
+		goto out;
 
 	init_completion(&online_compl);
-	rc = lpfc_workq_post_event(phba, &status, &online_compl,
-				   LPFC_EVT_ONLINE);
-	if (rc == 0)
-		return -ENOMEM;
+	job_posted = lpfc_workq_post_event(phba, &status, &online_compl,
+					   LPFC_EVT_ONLINE);
+	if (!job_posted)
+		goto out;
 
 	wait_for_completion(&online_compl);
 
-	if (status != 0)
-		return -EIO;
+out:
+	/* in any case, restore the virtual functions enabled as before */
+	if (sriov_nr_virtfn) {
+		sriov_err =
+			lpfc_sli_probe_sriov_nr_virtfn(phba, sriov_nr_virtfn);
+		if (!sriov_err)
+			phba->cfg_sriov_nr_virtfn = sriov_nr_virtfn;
+	}
 
-	return 0;
+	/* return proper error code */
+	if (!rc) {
+		if (!job_posted)
+			rc = -ENOMEM;
+		else if (status)
+			rc = -EIO;
+	}
+	return rc;
 }
 
 /**
@@ -955,33 +1030,38 @@ lpfc_board_mode_store(struct device *dev, struct device_attribute *attr,
 	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
 	struct lpfc_hba   *phba = vport->phba;
 	struct completion online_compl;
-	int status=0;
+	char *board_mode_str = NULL;
+	int status = 0;
 	int rc;
 
-	if (!phba->cfg_enable_hba_reset)
-		return -EACCES;
+	if (!phba->cfg_enable_hba_reset) {
+		status = -EACCES;
+		goto board_mode_out;
+	}
 
 	lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
-		"3050 lpfc_board_mode set to %s\n", buf);
+			 "3050 lpfc_board_mode set to %s\n", buf);
 
 	init_completion(&online_compl);
 
 	if(strncmp(buf, "online", sizeof("online") - 1) == 0) {
 		rc = lpfc_workq_post_event(phba, &status, &online_compl,
 				      LPFC_EVT_ONLINE);
-		if (rc == 0)
-			return -ENOMEM;
+		if (rc == 0) {
+			status = -ENOMEM;
+			goto board_mode_out;
+		}
 		wait_for_completion(&online_compl);
 	} else if (strncmp(buf, "offline", sizeof("offline") - 1) == 0)
 		status = lpfc_do_offline(phba, LPFC_EVT_OFFLINE);
 	else if (strncmp(buf, "warm", sizeof("warm") - 1) == 0)
 		if (phba->sli_rev == LPFC_SLI_REV4)
-			return -EINVAL;
+			status = -EINVAL;
 		else
 			status = lpfc_do_offline(phba, LPFC_EVT_WARM_START);
 	else if (strncmp(buf, "error", sizeof("error") - 1) == 0)
 		if (phba->sli_rev == LPFC_SLI_REV4)
-			return -EINVAL;
+			status = -EINVAL;
 		else
 			status = lpfc_do_offline(phba, LPFC_EVT_KILL);
 	else if (strncmp(buf, "dump", sizeof("dump") - 1) == 0)
@@ -991,12 +1071,21 @@ lpfc_board_mode_store(struct device *dev, struct device_attribute *attr,
 	else if (strncmp(buf, "dv_reset", sizeof("dv_reset") - 1) == 0)
 		status = lpfc_sli4_pdev_reg_request(phba, LPFC_DV_RESET);
 	else
-		return -EINVAL;
+		status = -EINVAL;
 
+board_mode_out:
 	if (!status)
 		return strlen(buf);
-	else
+	else {
+		board_mode_str = strchr(buf, '\n');
+		if (board_mode_str)
+			*board_mode_str = '\0';
+		lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+				 "3097 Failed \"%s\", status(%d), "
+				 "fc_flag(x%x)\n",
+				 buf, status, phba->pport->fc_flag);
 		return status;
+	}
 }
 
 /**
@@ -1942,6 +2031,7 @@ static DEVICE_ATTR(lpfc_fips_rev, S_IRUGO, lpfc_fips_rev_show, NULL);
 static DEVICE_ATTR(lpfc_dss, S_IRUGO, lpfc_dss_show, NULL);
 static DEVICE_ATTR(lpfc_sriov_hw_max_virtfn, S_IRUGO,
 		   lpfc_sriov_hw_max_virtfn_show, NULL);
+static DEVICE_ATTR(protocol, S_IRUGO, lpfc_sli4_protocol_show, NULL);
 
 static char *lpfc_soft_wwn_key = "C99G71SL8032A";
 
@@ -2687,6 +2777,14 @@ lpfc_topology_store(struct device *dev, struct device_attribute *attr,
 	if (val >= 0 && val <= 6) {
 		prev_val = phba->cfg_topology;
 		phba->cfg_topology = val;
+		if (phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G &&
+			val == 4) {
+			lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT,
+				"3113 Loop mode not supported at speed %d\n",
+				phba->cfg_link_speed);
+			phba->cfg_topology = prev_val;
+			return -EINVAL;
+		}
 		if (nolip)
 			return strlen(buf);
 
@@ -3132,6 +3230,14 @@ lpfc_link_speed_store(struct device *dev, struct device_attribute *attr,
 				val);
 		return -EINVAL;
 	}
+	if (val == LPFC_USER_LINK_SPEED_16G &&
+		 phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
+		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+				"3112 lpfc_link_speed attribute cannot be set "
+				"to %d. Speed is not supported in loop mode.\n",
+				val);
+		return -EINVAL;
+	}
 	if ((val >= 0) && (val <= LPFC_USER_LINK_SPEED_MAX) &&
 	    (LPFC_USER_LINK_SPEED_BITMAP & (1 << val))) {
 		prev_val = phba->cfg_link_speed;
@@ -3176,6 +3282,13 @@ lpfc_param_show(link_speed)
 static int
 lpfc_link_speed_init(struct lpfc_hba *phba, int val)
 {
+	if (val == LPFC_USER_LINK_SPEED_16G && phba->cfg_topology == 4) {
+		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+			"3111 lpfc_link_speed of %d cannot "
+			"support loop mode, setting topology to default.\n",
+			 val);
+		phba->cfg_topology = 0;
+	}
 	if ((val >= 0) && (val <= LPFC_USER_LINK_SPEED_MAX) &&
 	    (LPFC_USER_LINK_SPEED_BITMAP & (1 << val))) {
 		phba->cfg_link_speed = val;
@@ -3830,6 +3943,7 @@ struct device_attribute *lpfc_hba_attrs[] = {
 	&dev_attr_lpfc_fips_rev,
 	&dev_attr_lpfc_dss,
 	&dev_attr_lpfc_sriov_hw_max_virtfn,
+	&dev_attr_protocol,
 	NULL,
 };
 
@@ -3988,23 +4102,6 @@ static struct bin_attribute sysfs_ctlreg_attr = {
 };
 
 /**
- * sysfs_mbox_idle - frees the sysfs mailbox
- * @phba: lpfc_hba pointer
- **/
-static void
-sysfs_mbox_idle(struct lpfc_hba *phba)
-{
-	phba->sysfs_mbox.state = SMBOX_IDLE;
-	phba->sysfs_mbox.offset = 0;
-
-	if (phba->sysfs_mbox.mbox) {
-		mempool_free(phba->sysfs_mbox.mbox,
-			     phba->mbox_mem_pool);
-		phba->sysfs_mbox.mbox = NULL;
-	}
-}
-
-/**
  * sysfs_mbox_write - Write method for writing information via mbox
  * @filp: open sysfs file
  * @kobj: kernel kobject that contains the kernel class device.
@@ -4014,71 +4111,18 @@ sysfs_mbox_idle(struct lpfc_hba *phba)
  * @count: bytes to transfer.
  *
  * Description:
- * Accessed via /sys/class/scsi_host/hostxxx/mbox.
- * Uses the sysfs mbox to send buf contents to the adapter.
+ * Deprecated function. All mailbox access from user space is performed via the
+ * bsg interface.
  *
  * Returns:
- * -ERANGE off and count combo out of range
- * -EINVAL off, count or buff address invalid
- * zero if count is zero
- * -EPERM adapter is offline
- * -ENOMEM failed to allocate memory for the mail box
- * -EAGAIN offset, state or mbox is NULL
- * count number of bytes transferred
+ * -EPERM operation not permitted
  **/
 static ssize_t
 sysfs_mbox_write(struct file *filp, struct kobject *kobj,
 		 struct bin_attribute *bin_attr,
 		 char *buf, loff_t off, size_t count)
 {
-	struct device *dev = container_of(kobj, struct device, kobj);
-	struct Scsi_Host  *shost = class_to_shost(dev);
-	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
-	struct lpfc_hba   *phba = vport->phba;
-	struct lpfcMboxq  *mbox = NULL;
-
-	if ((count + off) > MAILBOX_CMD_SIZE)
-		return -ERANGE;
-
-	if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
-		return -EINVAL;
-
-	if (count == 0)
-		return 0;
-
-	if (off == 0) {
-		mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
-		if (!mbox)
-			return -ENOMEM;
-		memset(mbox, 0, sizeof (LPFC_MBOXQ_t));
-	}
-
-	spin_lock_irq(&phba->hbalock);
-
-	if (off == 0) {
-		if (phba->sysfs_mbox.mbox)
-			mempool_free(mbox, phba->mbox_mem_pool);
-		else
-			phba->sysfs_mbox.mbox = mbox;
-		phba->sysfs_mbox.state = SMBOX_WRITING;
-	} else {
-		if (phba->sysfs_mbox.state  != SMBOX_WRITING ||
-		    phba->sysfs_mbox.offset != off           ||
-		    phba->sysfs_mbox.mbox   == NULL) {
-			sysfs_mbox_idle(phba);
-			spin_unlock_irq(&phba->hbalock);
-			return -EAGAIN;
-		}
-	}
-
-	memcpy((uint8_t *) &phba->sysfs_mbox.mbox->u.mb + off,
-	       buf, count);
-
-	phba->sysfs_mbox.offset = off + count;
-
-	spin_unlock_irq(&phba->hbalock);
-
-	return count;
+	return -EPERM;
 }
 
 /**
@@ -4091,201 +4135,18 @@ sysfs_mbox_write(struct file *filp, struct kobject *kobj,
  * @count: bytes to transfer.
  *
  * Description:
- * Accessed via /sys/class/scsi_host/hostxxx/mbox.
- * Uses the sysfs mbox to receive data from to the adapter.
+ * Deprecated function. All mailbox access from user space is performed via the
+ * bsg interface.
  *
  * Returns:
- * -ERANGE off greater than mailbox command size
- * -EINVAL off, count or buff address invalid
- * zero if off and count are zero
- * -EACCES adapter over temp
- * -EPERM garbage can value to catch a multitude of errors
- * -EAGAIN management IO not permitted, state or off error
- * -ETIME mailbox timeout
- * -ENODEV mailbox error
- * count number of bytes transferred
+ * -EPERM operation not permitted
  **/
 static ssize_t
 sysfs_mbox_read(struct file *filp, struct kobject *kobj,
 		struct bin_attribute *bin_attr,
 		char *buf, loff_t off, size_t count)
 {
-	struct device *dev = container_of(kobj, struct device, kobj);
-	struct Scsi_Host  *shost = class_to_shost(dev);
-	struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata;
-	struct lpfc_hba   *phba = vport->phba;
-	LPFC_MBOXQ_t *mboxq;
-	MAILBOX_t *pmb;
-	uint32_t mbox_tmo;
-	int rc;
-
-	if (off > MAILBOX_CMD_SIZE)
-		return -ERANGE;
-
-	if ((count + off) > MAILBOX_CMD_SIZE)
-		count = MAILBOX_CMD_SIZE - off;
-
-	if (off % 4 ||  count % 4 || (unsigned long)buf % 4)
-		return -EINVAL;
-
-	if (off && count == 0)
-		return 0;
-
-	spin_lock_irq(&phba->hbalock);
-
-	if (phba->over_temp_state == HBA_OVER_TEMP) {
-		sysfs_mbox_idle(phba);
-		spin_unlock_irq(&phba->hbalock);
-		return  -EACCES;
-	}
-
-	if (off == 0 &&
-	    phba->sysfs_mbox.state  == SMBOX_WRITING &&
-	    phba->sysfs_mbox.offset >= 2 * sizeof(uint32_t)) {
-		mboxq = (LPFC_MBOXQ_t *)&phba->sysfs_mbox.mbox;
-		pmb = &mboxq->u.mb;
-		switch (pmb->mbxCommand) {
-			/* Offline only */
-		case MBX_INIT_LINK:
-		case MBX_DOWN_LINK:
-		case MBX_CONFIG_LINK:
-		case MBX_CONFIG_RING:
-		case MBX_RESET_RING:
-		case MBX_UNREG_LOGIN:
-		case MBX_CLEAR_LA:
-		case MBX_DUMP_CONTEXT:
-		case MBX_RUN_DIAGS:
-		case MBX_RESTART:
-		case MBX_SET_MASK:
-		case MBX_SET_DEBUG:
-			if (!(vport->fc_flag & FC_OFFLINE_MODE)) {
-				printk(KERN_WARNING "mbox_read:Command 0x%x "
-				       "is illegal in on-line state\n",
-				       pmb->mbxCommand);
-				sysfs_mbox_idle(phba);
-				spin_unlock_irq(&phba->hbalock);
-				return -EPERM;
-			}
-		case MBX_WRITE_NV:
-		case MBX_WRITE_VPARMS:
-		case MBX_LOAD_SM:
-		case MBX_READ_NV:
-		case MBX_READ_CONFIG:
-		case MBX_READ_RCONFIG:
-		case MBX_READ_STATUS:
-		case MBX_READ_XRI:
-		case MBX_READ_REV:
-		case MBX_READ_LNK_STAT:
-		case MBX_DUMP_MEMORY:
-		case MBX_DOWN_LOAD:
-		case MBX_UPDATE_CFG:
-		case MBX_KILL_BOARD:
-		case MBX_LOAD_AREA:
-		case MBX_LOAD_EXP_ROM:
-		case MBX_BEACON:
-		case MBX_DEL_LD_ENTRY:
-		case MBX_SET_VARIABLE:
-		case MBX_WRITE_WWN:
-		case MBX_PORT_CAPABILITIES:
-		case MBX_PORT_IOV_CONTROL:
-			break;
-		case MBX_SECURITY_MGMT:
-		case MBX_AUTH_PORT:
-			if (phba->pci_dev_grp == LPFC_PCI_DEV_OC) {
-				printk(KERN_WARNING "mbox_read:Command 0x%x "
-				       "is not permitted\n", pmb->mbxCommand);
-				sysfs_mbox_idle(phba);
-				spin_unlock_irq(&phba->hbalock);
-				return -EPERM;
-			}
-			break;
-		case MBX_READ_SPARM64:
-		case MBX_READ_TOPOLOGY:
-		case MBX_REG_LOGIN:
-		case MBX_REG_LOGIN64:
-		case MBX_CONFIG_PORT:
-		case MBX_RUN_BIU_DIAG:
-			printk(KERN_WARNING "mbox_read: Illegal Command 0x%x\n",
-			       pmb->mbxCommand);
-			sysfs_mbox_idle(phba);
-			spin_unlock_irq(&phba->hbalock);
-			return -EPERM;
-		default:
-			printk(KERN_WARNING "mbox_read: Unknown Command 0x%x\n",
-			       pmb->mbxCommand);
-			sysfs_mbox_idle(phba);
-			spin_unlock_irq(&phba->hbalock);
-			return -EPERM;
-		}
-
-		/* If HBA encountered an error attention, allow only DUMP
-		 * or RESTART mailbox commands until the HBA is restarted.
-		 */
-		if (phba->pport->stopped &&
-		    pmb->mbxCommand != MBX_DUMP_MEMORY &&
-		    pmb->mbxCommand != MBX_RESTART &&
-		    pmb->mbxCommand != MBX_WRITE_VPARMS &&
-		    pmb->mbxCommand != MBX_WRITE_WWN)
-			lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
-					"1259 mbox: Issued mailbox cmd "
-					"0x%x while in stopped state.\n",
-					pmb->mbxCommand);
-
-		phba->sysfs_mbox.mbox->vport = vport;
-
-		/* Don't allow mailbox commands to be sent when blocked
-		 * or when in the middle of discovery
-		 */
-		if (phba->sli.sli_flag & LPFC_BLOCK_MGMT_IO) {
-			sysfs_mbox_idle(phba);
-			spin_unlock_irq(&phba->hbalock);
-			return  -EAGAIN;
-		}
-
-		if ((vport->fc_flag & FC_OFFLINE_MODE) ||
-		    (!(phba->sli.sli_flag & LPFC_SLI_ACTIVE))) {
-
-			spin_unlock_irq(&phba->hbalock);
-			rc = lpfc_sli_issue_mbox (phba,
-						  phba->sysfs_mbox.mbox,
-						  MBX_POLL);
-			spin_lock_irq(&phba->hbalock);
-
-		} else {
-			spin_unlock_irq(&phba->hbalock);
-			mbox_tmo = lpfc_mbox_tmo_val(phba, mboxq);
-			rc = lpfc_sli_issue_mbox_wait(phba, mboxq, mbox_tmo);
-			spin_lock_irq(&phba->hbalock);
-		}
-
-		if (rc != MBX_SUCCESS) {
-			if (rc == MBX_TIMEOUT) {
-				phba->sysfs_mbox.mbox = NULL;
-			}
-			sysfs_mbox_idle(phba);
-			spin_unlock_irq(&phba->hbalock);
-			return  (rc == MBX_TIMEOUT) ? -ETIME : -ENODEV;
-		}
-		phba->sysfs_mbox.state = SMBOX_READING;
-	}
-	else if (phba->sysfs_mbox.offset != off ||
-		 phba->sysfs_mbox.state  != SMBOX_READING) {
-		printk(KERN_WARNING  "mbox_read: Bad State\n");
-		sysfs_mbox_idle(phba);
-		spin_unlock_irq(&phba->hbalock);
-		return -EAGAIN;
-	}
-
-	memcpy(buf, (uint8_t *) &pmb + off, count);
-
-	phba->sysfs_mbox.offset = off + count;
-
-	if (phba->sysfs_mbox.offset == MAILBOX_CMD_SIZE)
-		sysfs_mbox_idle(phba);
-
-	spin_unlock_irq(&phba->hbalock);
-
-	return count;
+	return -EPERM;
 }
 
 static struct bin_attribute sysfs_mbox_attr = {
@@ -4429,8 +4290,13 @@ lpfc_get_host_port_state(struct Scsi_Host *shost)
 		case LPFC_LINK_UP:
 		case LPFC_CLEAR_LA:
 		case LPFC_HBA_READY:
-			/* Links up, beyond this port_type reports state */
-			fc_host_port_state(shost) = FC_PORTSTATE_ONLINE;
+			/* Links up, reports port state accordingly */
+			if (vport->port_state < LPFC_VPORT_READY)
+				fc_host_port_state(shost) =
+							FC_PORTSTATE_BYPASSED;
+			else
+				fc_host_port_state(shost) =
+							FC_PORTSTATE_ONLINE;
 			break;
 		case LPFC_HBA_ERROR:
 			fc_host_port_state(shost) = FC_PORTSTATE_ERROR;
diff --git a/drivers/scsi/lpfc/lpfc_bsg.c b/drivers/scsi/lpfc/lpfc_bsg.c
index 6760c69f5253..56a86baece5b 100644
--- a/drivers/scsi/lpfc/lpfc_bsg.c
+++ b/drivers/scsi/lpfc/lpfc_bsg.c
@@ -916,9 +916,11 @@ lpfc_bsg_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
 				} else {
 					switch (cmd) {
 					case ELX_LOOPBACK_DATA:
-						diag_cmd_data_free(phba,
-						(struct lpfc_dmabufext *)
-							dmabuf);
+						if (phba->sli_rev <
+						    LPFC_SLI_REV4)
+							diag_cmd_data_free(phba,
+							(struct lpfc_dmabufext
+							 *)dmabuf);
 						break;
 					case ELX_LOOPBACK_XRI_SETUP:
 						if ((phba->sli_rev ==
@@ -1000,7 +1002,8 @@ lpfc_bsg_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
 error_ct_unsol_exit:
 	if (!list_empty(&head))
 		list_del(&head);
-	if (evt_req_id == SLI_CT_ELX_LOOPBACK)
+	if ((phba->sli_rev < LPFC_SLI_REV4) &&
+	    (evt_req_id == SLI_CT_ELX_LOOPBACK))
 		return 0;
 	return 1;
 }
@@ -1566,7 +1569,7 @@ lpfc_sli3_bsg_diag_loopback_mode(struct lpfc_hba *phba, struct fc_bsg_job *job)
 	struct diag_mode_set *loopback_mode;
 	uint32_t link_flags;
 	uint32_t timeout;
-	LPFC_MBOXQ_t *pmboxq;
+	LPFC_MBOXQ_t *pmboxq  = NULL;
 	int mbxstatus = MBX_SUCCESS;
 	int i = 0;
 	int rc = 0;
@@ -1615,7 +1618,6 @@ lpfc_sli3_bsg_diag_loopback_mode(struct lpfc_hba *phba, struct fc_bsg_job *job)
 				rc = -ETIMEDOUT;
 				goto loopback_mode_exit;
 			}
-
 			msleep(10);
 		}
 
@@ -1635,7 +1637,9 @@ lpfc_sli3_bsg_diag_loopback_mode(struct lpfc_hba *phba, struct fc_bsg_job *job)
 		if ((mbxstatus != MBX_SUCCESS) || (pmboxq->u.mb.mbxStatus))
 			rc = -ENODEV;
 		else {
+			spin_lock_irq(&phba->hbalock);
 			phba->link_flag |= LS_LOOPBACK_MODE;
+			spin_unlock_irq(&phba->hbalock);
 			/* wait for the link attention interrupt */
 			msleep(100);
 
@@ -1659,7 +1663,7 @@ loopback_mode_exit:
 	/*
 	 * Let SLI layer release mboxq if mbox command completed after timeout.
 	 */
-	if (mbxstatus != MBX_TIMEOUT)
+	if (pmboxq && mbxstatus != MBX_TIMEOUT)
 		mempool_free(pmboxq, phba->mbox_mem_pool);
 
 job_error:
@@ -1700,11 +1704,16 @@ lpfc_sli4_bsg_set_link_diag_state(struct lpfc_hba *phba, uint32_t diag)
 		rc = -ENOMEM;
 		goto link_diag_state_set_out;
 	}
+	lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
+			"3128 Set link to diagnostic state:x%x (x%x/x%x)\n",
+			diag, phba->sli4_hba.lnk_info.lnk_tp,
+			phba->sli4_hba.lnk_info.lnk_no);
+
 	link_diag_state = &pmboxq->u.mqe.un.link_diag_state;
 	bf_set(lpfc_mbx_set_diag_state_link_num, &link_diag_state->u.req,
-	       phba->sli4_hba.link_state.number);
+	       phba->sli4_hba.lnk_info.lnk_no);
 	bf_set(lpfc_mbx_set_diag_state_link_type, &link_diag_state->u.req,
-	       phba->sli4_hba.link_state.type);
+	       phba->sli4_hba.lnk_info.lnk_tp);
 	if (diag)
 		bf_set(lpfc_mbx_set_diag_state_diag,
 		       &link_diag_state->u.req, 1);
@@ -1727,6 +1736,79 @@ link_diag_state_set_out:
 }
 
 /**
+ * lpfc_sli4_bsg_set_internal_loopback - set sli4 internal loopback diagnostic
+ * @phba: Pointer to HBA context object.
+ *
+ * This function is responsible for issuing a sli4 mailbox command for setting
+ * up internal loopback diagnostic.
+ */
+static int
+lpfc_sli4_bsg_set_internal_loopback(struct lpfc_hba *phba)
+{
+	LPFC_MBOXQ_t *pmboxq;
+	uint32_t req_len, alloc_len;
+	struct lpfc_mbx_set_link_diag_loopback *link_diag_loopback;
+	int mbxstatus = MBX_SUCCESS, rc = 0;
+
+	pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+	if (!pmboxq)
+		return -ENOMEM;
+	req_len = (sizeof(struct lpfc_mbx_set_link_diag_loopback) -
+		   sizeof(struct lpfc_sli4_cfg_mhdr));
+	alloc_len = lpfc_sli4_config(phba, pmboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
+				LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_LOOPBACK,
+				req_len, LPFC_SLI4_MBX_EMBED);
+	if (alloc_len != req_len) {
+		mempool_free(pmboxq, phba->mbox_mem_pool);
+		return -ENOMEM;
+	}
+	link_diag_loopback = &pmboxq->u.mqe.un.link_diag_loopback;
+	bf_set(lpfc_mbx_set_diag_state_link_num,
+	       &link_diag_loopback->u.req, phba->sli4_hba.lnk_info.lnk_no);
+	bf_set(lpfc_mbx_set_diag_state_link_type,
+	       &link_diag_loopback->u.req, phba->sli4_hba.lnk_info.lnk_tp);
+	bf_set(lpfc_mbx_set_diag_lpbk_type, &link_diag_loopback->u.req,
+	       LPFC_DIAG_LOOPBACK_TYPE_SERDES);
+
+	mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO);
+	if ((mbxstatus != MBX_SUCCESS) || (pmboxq->u.mb.mbxStatus)) {
+		lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
+				"3127 Failed setup loopback mode mailbox "
+				"command, rc:x%x, status:x%x\n", mbxstatus,
+				pmboxq->u.mb.mbxStatus);
+		rc = -ENODEV;
+	}
+	if (pmboxq && (mbxstatus != MBX_TIMEOUT))
+		mempool_free(pmboxq, phba->mbox_mem_pool);
+	return rc;
+}
+
+/**
+ * lpfc_sli4_diag_fcport_reg_setup - setup port registrations for diagnostic
+ * @phba: Pointer to HBA context object.
+ *
+ * This function set up SLI4 FC port registrations for diagnostic run, which
+ * includes all the rpis, vfi, and also vpi.
+ */
+static int
+lpfc_sli4_diag_fcport_reg_setup(struct lpfc_hba *phba)
+{
+	int rc;
+
+	if (phba->pport->fc_flag & FC_VFI_REGISTERED) {
+		lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
+				"3136 Port still had vfi registered: "
+				"mydid:x%x, fcfi:%d, vfi:%d, vpi:%d\n",
+				phba->pport->fc_myDID, phba->fcf.fcfi,
+				phba->sli4_hba.vfi_ids[phba->pport->vfi],
+				phba->vpi_ids[phba->pport->vpi]);
+		return -EINVAL;
+	}
+	rc = lpfc_issue_reg_vfi(phba->pport);
+	return rc;
+}
+
+/**
  * lpfc_sli4_bsg_diag_loopback_mode - process an sli4 bsg vendor command
  * @phba: Pointer to HBA context object.
  * @job: LPFC_BSG_VENDOR_DIAG_MODE
@@ -1738,10 +1820,8 @@ static int
 lpfc_sli4_bsg_diag_loopback_mode(struct lpfc_hba *phba, struct fc_bsg_job *job)
 {
 	struct diag_mode_set *loopback_mode;
-	uint32_t link_flags, timeout, req_len, alloc_len;
-	struct lpfc_mbx_set_link_diag_loopback *link_diag_loopback;
-	LPFC_MBOXQ_t *pmboxq = NULL;
-	int mbxstatus = MBX_SUCCESS, i, rc = 0;
+	uint32_t link_flags, timeout;
+	int i, rc = 0;
 
 	/* no data to return just the return code */
 	job->reply->reply_payload_rcv_len = 0;
@@ -1762,65 +1842,100 @@ lpfc_sli4_bsg_diag_loopback_mode(struct lpfc_hba *phba, struct fc_bsg_job *job)
 	if (rc)
 		goto job_error;
 
+	/* indicate we are in loobpack diagnostic mode */
+	spin_lock_irq(&phba->hbalock);
+	phba->link_flag |= LS_LOOPBACK_MODE;
+	spin_unlock_irq(&phba->hbalock);
+
+	/* reset port to start frome scratch */
+	rc = lpfc_selective_reset(phba);
+	if (rc)
+		goto job_error;
+
 	/* bring the link to diagnostic mode */
+	lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
+			"3129 Bring link to diagnostic state.\n");
 	loopback_mode = (struct diag_mode_set *)
 		job->request->rqst_data.h_vendor.vendor_cmd;
 	link_flags = loopback_mode->type;
 	timeout = loopback_mode->timeout * 100;
 
 	rc = lpfc_sli4_bsg_set_link_diag_state(phba, 1);
-	if (rc)
+	if (rc) {
+		lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
+				"3130 Failed to bring link to diagnostic "
+				"state, rc:x%x\n", rc);
 		goto loopback_mode_exit;
+	}
 
 	/* wait for link down before proceeding */
 	i = 0;
 	while (phba->link_state != LPFC_LINK_DOWN) {
 		if (i++ > timeout) {
 			rc = -ETIMEDOUT;
+			lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
+					"3131 Timeout waiting for link to "
+					"diagnostic mode, timeout:%d ms\n",
+					timeout * 10);
 			goto loopback_mode_exit;
 		}
 		msleep(10);
 	}
+
 	/* set up loopback mode */
-	pmboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
-	if (!pmboxq) {
-		rc = -ENOMEM;
-		goto loopback_mode_exit;
-	}
-	req_len = (sizeof(struct lpfc_mbx_set_link_diag_loopback) -
-		   sizeof(struct lpfc_sli4_cfg_mhdr));
-	alloc_len = lpfc_sli4_config(phba, pmboxq, LPFC_MBOX_SUBSYSTEM_FCOE,
-				LPFC_MBOX_OPCODE_FCOE_LINK_DIAG_LOOPBACK,
-				req_len, LPFC_SLI4_MBX_EMBED);
-	if (alloc_len != req_len) {
-		rc = -ENOMEM;
+	lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
+			"3132 Set up loopback mode:x%x\n", link_flags);
+
+	if (link_flags == INTERNAL_LOOP_BACK)
+		rc = lpfc_sli4_bsg_set_internal_loopback(phba);
+	else if (link_flags == EXTERNAL_LOOP_BACK)
+		rc = lpfc_hba_init_link_fc_topology(phba,
+						    FLAGS_TOPOLOGY_MODE_PT_PT,
+						    MBX_NOWAIT);
+	else {
+		rc = -EINVAL;
+		lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
+				"3141 Loopback mode:x%x not supported\n",
+				link_flags);
 		goto loopback_mode_exit;
 	}
-	link_diag_loopback = &pmboxq->u.mqe.un.link_diag_loopback;
-	bf_set(lpfc_mbx_set_diag_state_link_num,
-	       &link_diag_loopback->u.req, phba->sli4_hba.link_state.number);
-	bf_set(lpfc_mbx_set_diag_state_link_type,
-	       &link_diag_loopback->u.req, phba->sli4_hba.link_state.type);
-	if (link_flags == INTERNAL_LOOP_BACK)
-		bf_set(lpfc_mbx_set_diag_lpbk_type,
-		       &link_diag_loopback->u.req,
-		       LPFC_DIAG_LOOPBACK_TYPE_INTERNAL);
-	else
-		bf_set(lpfc_mbx_set_diag_lpbk_type,
-		       &link_diag_loopback->u.req,
-		       LPFC_DIAG_LOOPBACK_TYPE_EXTERNAL);
 
-	mbxstatus = lpfc_sli_issue_mbox_wait(phba, pmboxq, LPFC_MBOX_TMO);
-	if ((mbxstatus != MBX_SUCCESS) || (pmboxq->u.mb.mbxStatus))
-		rc = -ENODEV;
-	else {
-		phba->link_flag |= LS_LOOPBACK_MODE;
+	if (!rc) {
 		/* wait for the link attention interrupt */
 		msleep(100);
 		i = 0;
+		while (phba->link_state < LPFC_LINK_UP) {
+			if (i++ > timeout) {
+				rc = -ETIMEDOUT;
+				lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
+					"3137 Timeout waiting for link up "
+					"in loopback mode, timeout:%d ms\n",
+					timeout * 10);
+				break;
+			}
+			msleep(10);
+		}
+	}
+
+	/* port resource registration setup for loopback diagnostic */
+	if (!rc) {
+		/* set up a none zero myDID for loopback test */
+		phba->pport->fc_myDID = 1;
+		rc = lpfc_sli4_diag_fcport_reg_setup(phba);
+	} else
+		goto loopback_mode_exit;
+
+	if (!rc) {
+		/* wait for the port ready */
+		msleep(100);
+		i = 0;
 		while (phba->link_state != LPFC_HBA_READY) {
 			if (i++ > timeout) {
 				rc = -ETIMEDOUT;
+				lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
+					"3133 Timeout waiting for port "
+					"loopback mode ready, timeout:%d ms\n",
+					timeout * 10);
 				break;
 			}
 			msleep(10);
@@ -1828,14 +1943,14 @@ lpfc_sli4_bsg_diag_loopback_mode(struct lpfc_hba *phba, struct fc_bsg_job *job)
 	}
 
 loopback_mode_exit:
+	/* clear loopback diagnostic mode */
+	if (rc) {
+		spin_lock_irq(&phba->hbalock);
+		phba->link_flag &= ~LS_LOOPBACK_MODE;
+		spin_unlock_irq(&phba->hbalock);
+	}
 	lpfc_bsg_diag_mode_exit(phba);
 
-	/*
-	 * Let SLI layer release mboxq if mbox command completed after timeout.
-	 */
-	if (pmboxq && (mbxstatus != MBX_TIMEOUT))
-		mempool_free(pmboxq, phba->mbox_mem_pool);
-
 job_error:
 	/* make error code available to userspace */
 	job->reply->result = rc;
@@ -1879,7 +1994,6 @@ lpfc_bsg_diag_loopback_mode(struct fc_bsg_job *job)
 		rc = -ENODEV;
 
 	return rc;
-
 }
 
 /**
@@ -1895,7 +2009,9 @@ lpfc_sli4_bsg_diag_mode_end(struct fc_bsg_job *job)
 	struct Scsi_Host *shost;
 	struct lpfc_vport *vport;
 	struct lpfc_hba *phba;
-	int rc;
+	struct diag_mode_set *loopback_mode_end_cmd;
+	uint32_t timeout;
+	int rc, i;
 
 	shost = job->shost;
 	if (!shost)
@@ -1913,11 +2029,47 @@ lpfc_sli4_bsg_diag_mode_end(struct fc_bsg_job *job)
 	    LPFC_SLI_INTF_IF_TYPE_2)
 		return -ENODEV;
 
+	/* clear loopback diagnostic mode */
+	spin_lock_irq(&phba->hbalock);
+	phba->link_flag &= ~LS_LOOPBACK_MODE;
+	spin_unlock_irq(&phba->hbalock);
+	loopback_mode_end_cmd = (struct diag_mode_set *)
+			job->request->rqst_data.h_vendor.vendor_cmd;
+	timeout = loopback_mode_end_cmd->timeout * 100;
+
 	rc = lpfc_sli4_bsg_set_link_diag_state(phba, 0);
+	if (rc) {
+		lpfc_printf_log(phba, KERN_WARNING, LOG_LIBDFC,
+				"3139 Failed to bring link to diagnostic "
+				"state, rc:x%x\n", rc);
+		goto loopback_mode_end_exit;
+	}
 
-	if (!rc)
-		rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
+	/* wait for link down before proceeding */
+	i = 0;
+	while (phba->link_state != LPFC_LINK_DOWN) {
+		if (i++ > timeout) {
+			rc = -ETIMEDOUT;
+			lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
+					"3140 Timeout waiting for link to "
+					"diagnostic mode_end, timeout:%d ms\n",
+					timeout * 10);
+			/* there is nothing much we can do here */
+			break;
+		}
+		msleep(10);
+	}
+
+	/* reset port resource registrations */
+	rc = lpfc_selective_reset(phba);
+	phba->pport->fc_myDID = 0;
 
+loopback_mode_end_exit:
+	/* make return code available to userspace */
+	job->reply->result = rc;
+	/* complete the job back to userspace if no error */
+	if (rc == 0)
+		job->job_done(job);
 	return rc;
 }
 
@@ -2012,9 +2164,9 @@ lpfc_sli4_bsg_link_diag_test(struct fc_bsg_job *job)
 	}
 	run_link_diag_test = &pmboxq->u.mqe.un.link_diag_test;
 	bf_set(lpfc_mbx_run_diag_test_link_num, &run_link_diag_test->u.req,
-	       phba->sli4_hba.link_state.number);
+	       phba->sli4_hba.lnk_info.lnk_no);
 	bf_set(lpfc_mbx_run_diag_test_link_type, &run_link_diag_test->u.req,
-	       phba->sli4_hba.link_state.type);
+	       phba->sli4_hba.lnk_info.lnk_tp);
 	bf_set(lpfc_mbx_run_diag_test_test_id, &run_link_diag_test->u.req,
 	       link_diag_test_cmd->test_id);
 	bf_set(lpfc_mbx_run_diag_test_loops, &run_link_diag_test->u.req,
@@ -2091,10 +2243,18 @@ static int lpfcdiag_loop_self_reg(struct lpfc_hba *phba, uint16_t *rpi)
 	if (!mbox)
 		return -ENOMEM;
 
-	if (phba->sli_rev == LPFC_SLI_REV4)
+	if (phba->sli_rev < LPFC_SLI_REV4)
+		status = lpfc_reg_rpi(phba, 0, phba->pport->fc_myDID,
+				(uint8_t *)&phba->pport->fc_sparam,
+				mbox, *rpi);
+	else {
 		*rpi = lpfc_sli4_alloc_rpi(phba);
-	status = lpfc_reg_rpi(phba, 0, phba->pport->fc_myDID,
-			      (uint8_t *)&phba->pport->fc_sparam, mbox, *rpi);
+		status = lpfc_reg_rpi(phba, phba->pport->vpi,
+				phba->pport->fc_myDID,
+				(uint8_t *)&phba->pport->fc_sparam,
+				mbox, *rpi);
+	}
+
 	if (status) {
 		mempool_free(mbox, phba->mbox_mem_pool);
 		if (phba->sli_rev == LPFC_SLI_REV4)
@@ -2117,7 +2277,8 @@ static int lpfcdiag_loop_self_reg(struct lpfc_hba *phba, uint16_t *rpi)
 		return -ENODEV;
 	}
 
-	*rpi = mbox->u.mb.un.varWords[0];
+	if (phba->sli_rev < LPFC_SLI_REV4)
+		*rpi = mbox->u.mb.un.varWords[0];
 
 	lpfc_mbuf_free(phba, dmabuff->virt, dmabuff->phys);
 	kfree(dmabuff);
@@ -2142,7 +2303,12 @@ static int lpfcdiag_loop_self_unreg(struct lpfc_hba *phba, uint16_t rpi)
 	if (mbox == NULL)
 		return -ENOMEM;
 
-	lpfc_unreg_login(phba, 0, rpi, mbox);
+	if (phba->sli_rev < LPFC_SLI_REV4)
+		lpfc_unreg_login(phba, 0, rpi, mbox);
+	else
+		lpfc_unreg_login(phba, phba->pport->vpi,
+				 phba->sli4_hba.rpi_ids[rpi], mbox);
+
 	status = lpfc_sli_issue_mbox_wait(phba, mbox, LPFC_MBOX_TMO);
 
 	if ((status != MBX_SUCCESS) || (mbox->u.mb.mbxStatus)) {
@@ -2630,15 +2796,15 @@ lpfc_bsg_diag_loopback_run(struct fc_bsg_job *job)
 	uint32_t full_size;
 	size_t segment_len = 0, segment_offset = 0, current_offset = 0;
 	uint16_t rpi = 0;
-	struct lpfc_iocbq *cmdiocbq, *rspiocbq;
-	IOCB_t *cmd, *rsp;
+	struct lpfc_iocbq *cmdiocbq, *rspiocbq = NULL;
+	IOCB_t *cmd, *rsp = NULL;
 	struct lpfc_sli_ct_request *ctreq;
 	struct lpfc_dmabuf *txbmp;
 	struct ulp_bde64 *txbpl = NULL;
 	struct lpfc_dmabufext *txbuffer = NULL;
 	struct list_head head;
 	struct lpfc_dmabuf  *curr;
-	uint16_t txxri, rxxri;
+	uint16_t txxri = 0, rxxri;
 	uint32_t num_bde;
 	uint8_t *ptr = NULL, *rx_databuf = NULL;
 	int rc = 0;
@@ -2665,7 +2831,6 @@ lpfc_bsg_diag_loopback_run(struct fc_bsg_job *job)
 		rc = -EINVAL;
 		goto loopback_test_exit;
 	}
-
 	diag_mode = (struct diag_mode_test *)
 		job->request->rqst_data.h_vendor.vendor_cmd;
 
@@ -2720,18 +2885,19 @@ lpfc_bsg_diag_loopback_run(struct fc_bsg_job *job)
 	if (rc)
 		goto loopback_test_exit;
 
-	rc = lpfcdiag_loop_get_xri(phba, rpi, &txxri, &rxxri);
-	if (rc) {
-		lpfcdiag_loop_self_unreg(phba, rpi);
-		goto loopback_test_exit;
-	}
+	if (phba->sli_rev < LPFC_SLI_REV4) {
+		rc = lpfcdiag_loop_get_xri(phba, rpi, &txxri, &rxxri);
+		if (rc) {
+			lpfcdiag_loop_self_unreg(phba, rpi);
+			goto loopback_test_exit;
+		}
 
-	rc = lpfcdiag_loop_post_rxbufs(phba, rxxri, full_size);
-	if (rc) {
-		lpfcdiag_loop_self_unreg(phba, rpi);
-		goto loopback_test_exit;
+		rc = lpfcdiag_loop_post_rxbufs(phba, rxxri, full_size);
+		if (rc) {
+			lpfcdiag_loop_self_unreg(phba, rpi);
+			goto loopback_test_exit;
+		}
 	}
-
 	evt = lpfc_bsg_event_new(FC_REG_CT_EVENT, current->pid,
 				SLI_CT_ELX_LOOPBACK);
 	if (!evt) {
@@ -2746,7 +2912,8 @@ lpfc_bsg_diag_loopback_run(struct fc_bsg_job *job)
 	spin_unlock_irqrestore(&phba->ct_ev_lock, flags);
 
 	cmdiocbq = lpfc_sli_get_iocbq(phba);
-	rspiocbq = lpfc_sli_get_iocbq(phba);
+	if (phba->sli_rev < LPFC_SLI_REV4)
+		rspiocbq = lpfc_sli_get_iocbq(phba);
 	txbmp = kmalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
 
 	if (txbmp) {
@@ -2759,14 +2926,18 @@ lpfc_bsg_diag_loopback_run(struct fc_bsg_job *job)
 		}
 	}
 
-	if (!cmdiocbq || !rspiocbq || !txbmp || !txbpl || !txbuffer ||
-		!txbmp->virt) {
+	if (!cmdiocbq || !txbmp || !txbpl || !txbuffer || !txbmp->virt) {
+		rc = -ENOMEM;
+		goto err_loopback_test_exit;
+	}
+	if ((phba->sli_rev < LPFC_SLI_REV4) && !rspiocbq) {
 		rc = -ENOMEM;
 		goto err_loopback_test_exit;
 	}
 
 	cmd = &cmdiocbq->iocb;
-	rsp = &rspiocbq->iocb;
+	if (phba->sli_rev < LPFC_SLI_REV4)
+		rsp = &rspiocbq->iocb;
 
 	INIT_LIST_HEAD(&head);
 	list_add_tail(&head, &txbuffer->dma.list);
@@ -2796,7 +2967,6 @@ lpfc_bsg_diag_loopback_run(struct fc_bsg_job *job)
 	list_del(&head);
 
 	/* Build the XMIT_SEQUENCE iocb */
-
 	num_bde = (uint32_t)txbuffer->flag;
 
 	cmd->un.xseq64.bdl.addrHigh = putPaddrHigh(txbmp->phys);
@@ -2813,16 +2983,27 @@ lpfc_bsg_diag_loopback_run(struct fc_bsg_job *job)
 	cmd->ulpBdeCount = 1;
 	cmd->ulpLe = 1;
 	cmd->ulpClass = CLASS3;
-	cmd->ulpContext = txxri;
 
+	if (phba->sli_rev < LPFC_SLI_REV4) {
+		cmd->ulpContext = txxri;
+	} else {
+		cmd->un.xseq64.bdl.ulpIoTag32 = 0;
+		cmd->un.ulpWord[3] = phba->sli4_hba.rpi_ids[rpi];
+		cmdiocbq->context3 = txbmp;
+		cmdiocbq->sli4_xritag = NO_XRI;
+		cmd->unsli3.rcvsli3.ox_id = 0xffff;
+	}
 	cmdiocbq->iocb_flag |= LPFC_IO_LIBDFC;
 	cmdiocbq->vport = phba->pport;
-
 	iocb_stat = lpfc_sli_issue_iocb_wait(phba, LPFC_ELS_RING, cmdiocbq,
 					     rspiocbq, (phba->fc_ratov * 2) +
 					     LPFC_DRVR_TIMEOUT);
 
-	if ((iocb_stat != IOCB_SUCCESS) || (rsp->ulpStatus != IOCB_SUCCESS)) {
+	if ((iocb_stat != IOCB_SUCCESS) || ((phba->sli_rev < LPFC_SLI_REV4) &&
+					   (rsp->ulpStatus != IOCB_SUCCESS))) {
+		lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
+				"3126 Failed loopback test issue iocb: "
+				"iocb_stat:x%x\n", iocb_stat);
 		rc = -EIO;
 		goto err_loopback_test_exit;
 	}
@@ -2832,9 +3013,12 @@ lpfc_bsg_diag_loopback_run(struct fc_bsg_job *job)
 		evt->wq, !list_empty(&evt->events_to_see),
 		((phba->fc_ratov * 2) + LPFC_DRVR_TIMEOUT) * HZ);
 	evt->waiting = 0;
-	if (list_empty(&evt->events_to_see))
+	if (list_empty(&evt->events_to_see)) {
 		rc = (time_left) ? -EINTR : -ETIMEDOUT;
-	else {
+		lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
+				"3125 Not receiving unsolicited event, "
+				"rc:x%x\n", rc);
+	} else {
 		spin_lock_irqsave(&phba->ct_ev_lock, flags);
 		list_move(evt->events_to_see.prev, &evt->events_to_get);
 		evdat = list_entry(evt->events_to_get.prev,
@@ -2891,7 +3075,7 @@ loopback_test_exit:
 	job->reply->result = rc;
 	job->dd_data = NULL;
 	/* complete the job back to userspace if no error */
-	if (rc == 0)
+	if (rc == IOCB_SUCCESS)
 		job->job_done(job);
 	return rc;
 }
@@ -3078,7 +3262,9 @@ static int lpfc_bsg_check_cmd_access(struct lpfc_hba *phba,
 			&& (mb->un.varWords[1] == 1)) {
 			phba->wait_4_mlo_maint_flg = 1;
 		} else if (mb->un.varWords[0] == SETVAR_MLORST) {
+			spin_lock_irq(&phba->hbalock);
 			phba->link_flag &= ~LS_LOOPBACK_MODE;
+			spin_unlock_irq(&phba->hbalock);
 			phba->fc_topology = LPFC_TOPOLOGY_PT_PT;
 		}
 		break;
@@ -3140,6 +3326,9 @@ lpfc_bsg_issue_mbox_ext_handle_job(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 	unsigned long flags;
 	uint32_t size;
 	int rc = 0;
+	struct lpfc_dmabuf *dmabuf;
+	struct lpfc_sli_config_mbox *sli_cfg_mbx;
+	uint8_t *pmbx;
 
 	spin_lock_irqsave(&phba->ct_ev_lock, flags);
 	dd_data = pmboxq->context1;
@@ -3156,7 +3345,19 @@ lpfc_bsg_issue_mbox_ext_handle_job(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmboxq)
 	 */
 	pmb = (uint8_t *)&pmboxq->u.mb;
 	pmb_buf = (uint8_t *)dd_data->context_un.mbox.mb;
+	/* Copy the byte swapped response mailbox back to the user */
 	memcpy(pmb_buf, pmb, sizeof(MAILBOX_t));
+	/* if there is any non-embedded extended data copy that too */
+	dmabuf = phba->mbox_ext_buf_ctx.mbx_dmabuf;
+	sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt;
+	if (!bsg_bf_get(lpfc_mbox_hdr_emb,
+	    &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr)) {
+		pmbx = (uint8_t *)dmabuf->virt;
+		/* byte swap the extended data following the mailbox command */
+		lpfc_sli_pcimem_bcopy(&pmbx[sizeof(MAILBOX_t)],
+			&pmbx[sizeof(MAILBOX_t)],
+			sli_cfg_mbx->un.sli_config_emb0_subsys.mse[0].buf_len);
+	}
 
 	job = dd_data->context_un.mbox.set_job;
 	if (job) {
@@ -3519,6 +3720,18 @@ lpfc_bsg_sli_cfg_read_cmd_ext(struct lpfc_hba *phba, struct fc_bsg_job *job,
 	/* state change */
 	phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_PORT;
 
+	/*
+	 * Non-embedded mailbox subcommand data gets byte swapped here because
+	 * the lower level driver code only does the first 64 mailbox words.
+	 */
+	if ((!bsg_bf_get(lpfc_mbox_hdr_emb,
+	    &sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr)) &&
+		(nemb_tp == nemb_mse))
+		lpfc_sli_pcimem_bcopy(&pmbx[sizeof(MAILBOX_t)],
+			&pmbx[sizeof(MAILBOX_t)],
+				sli_cfg_mbx->un.sli_config_emb0_subsys.
+					mse[0].buf_len);
+
 	rc = lpfc_sli_issue_mbox(phba, pmboxq, MBX_NOWAIT);
 	if ((rc == MBX_SUCCESS) || (rc == MBX_BUSY)) {
 		lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
@@ -3575,7 +3788,7 @@ lpfc_bsg_sli_cfg_write_cmd_ext(struct lpfc_hba *phba, struct fc_bsg_job *job,
 			&sli_cfg_mbx->un.sli_config_emb0_subsys.sli_config_hdr);
 		if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_MSE) {
 			lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
-					"2953 Handled SLI_CONFIG(mse) wr, "
+					"2953 Failed SLI_CONFIG(mse) wr, "
 					"ext_buf_cnt(%d) out of range(%d)\n",
 					ext_buf_cnt,
 					LPFC_MBX_SLI_CONFIG_MAX_MSE);
@@ -3593,7 +3806,7 @@ lpfc_bsg_sli_cfg_write_cmd_ext(struct lpfc_hba *phba, struct fc_bsg_job *job,
 		ext_buf_cnt = sli_cfg_mbx->un.sli_config_emb1_subsys.hbd_count;
 		if (ext_buf_cnt > LPFC_MBX_SLI_CONFIG_MAX_HBD) {
 			lpfc_printf_log(phba, KERN_ERR, LOG_LIBDFC,
-					"2954 Handled SLI_CONFIG(hbd) wr, "
+					"2954 Failed SLI_CONFIG(hbd) wr, "
 					"ext_buf_cnt(%d) out of range(%d)\n",
 					ext_buf_cnt,
 					LPFC_MBX_SLI_CONFIG_MAX_HBD);
@@ -3687,6 +3900,7 @@ lpfc_bsg_sli_cfg_write_cmd_ext(struct lpfc_hba *phba, struct fc_bsg_job *job,
 				"2956 Failed to issue SLI_CONFIG ext-buffer "
 				"maibox command, rc:x%x\n", rc);
 		rc = -EPIPE;
+		goto job_error;
 	}
 
 	/* wait for additoinal external buffers */
@@ -3721,7 +3935,7 @@ lpfc_bsg_handle_sli_cfg_mbox(struct lpfc_hba *phba, struct fc_bsg_job *job,
 	uint32_t opcode;
 	int rc = SLI_CONFIG_NOT_HANDLED;
 
-	/* state change */
+	/* state change on new multi-buffer pass-through mailbox command */
 	phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_HOST;
 
 	sli_cfg_mbx = (struct lpfc_sli_config_mbox *)dmabuf->virt;
@@ -3752,18 +3966,36 @@ lpfc_bsg_handle_sli_cfg_mbox(struct lpfc_hba *phba, struct fc_bsg_job *job,
 				break;
 			default:
 				lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
-						"2959 Not handled SLI_CONFIG "
+						"2959 Reject SLI_CONFIG "
 						"subsys_fcoe, opcode:x%x\n",
 						opcode);
-				rc = SLI_CONFIG_NOT_HANDLED;
+				rc = -EPERM;
+				break;
+			}
+		} else if (subsys == SLI_CONFIG_SUBSYS_COMN) {
+			switch (opcode) {
+			case COMN_OPCODE_GET_CNTL_ADDL_ATTRIBUTES:
+				lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
+						"3106 Handled SLI_CONFIG "
+						"subsys_fcoe, opcode:x%x\n",
+						opcode);
+				rc = lpfc_bsg_sli_cfg_read_cmd_ext(phba, job,
+							nemb_mse, dmabuf);
+				break;
+			default:
+				lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
+						"3107 Reject SLI_CONFIG "
+						"subsys_fcoe, opcode:x%x\n",
+						opcode);
+				rc = -EPERM;
 				break;
 			}
 		} else {
 			lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
-					"2977 Handled SLI_CONFIG "
+					"2977 Reject SLI_CONFIG "
 					"subsys:x%d, opcode:x%x\n",
 					subsys, opcode);
-			rc = SLI_CONFIG_NOT_HANDLED;
+			rc = -EPERM;
 		}
 	} else {
 		subsys = bsg_bf_get(lpfc_emb1_subcmnd_subsys,
@@ -3799,12 +4031,17 @@ lpfc_bsg_handle_sli_cfg_mbox(struct lpfc_hba *phba, struct fc_bsg_job *job,
 			}
 		} else {
 			lpfc_printf_log(phba, KERN_INFO, LOG_LIBDFC,
-					"2978 Handled SLI_CONFIG "
+					"2978 Not handled SLI_CONFIG "
 					"subsys:x%d, opcode:x%x\n",
 					subsys, opcode);
 			rc = SLI_CONFIG_NOT_HANDLED;
 		}
 	}
+
+	/* state reset on not handled new multi-buffer mailbox command */
+	if (rc != SLI_CONFIG_HANDLED)
+		phba->mbox_ext_buf_ctx.state = LPFC_BSG_MBOX_IDLE;
+
 	return rc;
 }
 
@@ -4262,11 +4499,8 @@ lpfc_bsg_issue_mbox(struct lpfc_hba *phba, struct fc_bsg_job *job,
 
 	/* extended mailbox commands will need an extended buffer */
 	if (mbox_req->inExtWLen || mbox_req->outExtWLen) {
-		/* any data for the device? */
-		if (mbox_req->inExtWLen) {
-			from = pmbx;
-			ext = from + sizeof(MAILBOX_t);
-		}
+		from = pmbx;
+		ext = from + sizeof(MAILBOX_t);
 		pmboxq->context2 = ext;
 		pmboxq->in_ext_byte_len =
 			mbox_req->inExtWLen * sizeof(uint32_t);
diff --git a/drivers/scsi/lpfc/lpfc_bsg.h b/drivers/scsi/lpfc/lpfc_bsg.h
index c8c2b47ea886..edfe61fc52b1 100644
--- a/drivers/scsi/lpfc/lpfc_bsg.h
+++ b/drivers/scsi/lpfc/lpfc_bsg.h
@@ -96,7 +96,7 @@ struct get_mgmt_rev {
 };
 
 #define MANAGEMENT_MAJOR_REV   1
-#define MANAGEMENT_MINOR_REV   0
+#define MANAGEMENT_MINOR_REV   1
 
 /* the MgmtRevInfo structure */
 struct MgmtRevInfo {
@@ -248,6 +248,7 @@ struct lpfc_sli_config_emb1_subsys {
 #define COMN_OPCODE_WRITE_OBJECT	0xAC
 #define COMN_OPCODE_READ_OBJECT_LIST	0xAD
 #define COMN_OPCODE_DELETE_OBJECT	0xAE
+#define COMN_OPCODE_GET_CNTL_ADDL_ATTRIBUTES	0x79
 	uint32_t timeout;
 	uint32_t request_length;
 	uint32_t word9;
diff --git a/drivers/scsi/lpfc/lpfc_compat.h b/drivers/scsi/lpfc/lpfc_compat.h
index 75e2e569dede..c88e556ea62e 100644
--- a/drivers/scsi/lpfc/lpfc_compat.h
+++ b/drivers/scsi/lpfc/lpfc_compat.h
@@ -1,7 +1,7 @@
 /*******************************************************************
  * This file is part of the Emulex Linux Device Driver for         *
  * Fibre Channel Host Bus Adapters.                                *
- * Copyright (C) 2004-2005 Emulex.  All rights reserved.           *
+ * Copyright (C) 2004-2011 Emulex.  All rights reserved.           *
  * EMULEX and SLI are trademarks of Emulex.                        *
  * www.emulex.com                                                  *
  *                                                                 *
@@ -82,7 +82,8 @@ lpfc_memcpy_from_slim( void *dest, void __iomem *src, unsigned int bytes)
 static inline void
 lpfc_memcpy_to_slim( void __iomem *dest, void *src, unsigned int bytes)
 {
-	__iowrite32_copy(dest, src, bytes);
+	/* convert bytes in argument list to word count for copy function */
+	__iowrite32_copy(dest, src, bytes / sizeof(uint32_t));
 }
 
 static inline void
diff --git a/drivers/scsi/lpfc/lpfc_crtn.h b/drivers/scsi/lpfc/lpfc_crtn.h
index 60f95347babf..26924b7a6cde 100644
--- a/drivers/scsi/lpfc/lpfc_crtn.h
+++ b/drivers/scsi/lpfc/lpfc_crtn.h
@@ -26,7 +26,7 @@ void lpfc_sli_read_link_ste(struct lpfc_hba *);
 void lpfc_dump_mem(struct lpfc_hba *, LPFC_MBOXQ_t *, uint16_t, uint16_t);
 void lpfc_dump_wakeup_param(struct lpfc_hba *, LPFC_MBOXQ_t *);
 int lpfc_dump_static_vport(struct lpfc_hba *, LPFC_MBOXQ_t *, uint16_t);
-int lpfc_dump_fcoe_param(struct lpfc_hba *, struct lpfcMboxq *);
+int lpfc_sli4_dump_cfg_rg23(struct lpfc_hba *, struct lpfcMboxq *);
 void lpfc_read_nv(struct lpfc_hba *, LPFC_MBOXQ_t *);
 void lpfc_config_async(struct lpfc_hba *, LPFC_MBOXQ_t *, uint32_t);
 
@@ -78,6 +78,7 @@ void lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *, LPFC_MBOXQ_t *);
 void lpfc_mbx_cmpl_ns_reg_login(struct lpfc_hba *, LPFC_MBOXQ_t *);
 void lpfc_mbx_cmpl_fdmi_reg_login(struct lpfc_hba *, LPFC_MBOXQ_t *);
 void lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *, LPFC_MBOXQ_t *);
+void lpfc_unregister_vfi_cmpl(struct lpfc_hba *, LPFC_MBOXQ_t *);
 void lpfc_enqueue_node(struct lpfc_vport *, struct lpfc_nodelist *);
 void lpfc_dequeue_node(struct lpfc_vport *, struct lpfc_nodelist *);
 struct lpfc_nodelist *lpfc_enable_node(struct lpfc_vport *,
@@ -106,7 +107,7 @@ void lpfc_cleanup(struct lpfc_vport *);
 void lpfc_disc_timeout(unsigned long);
 
 struct lpfc_nodelist *__lpfc_findnode_rpi(struct lpfc_vport *, uint16_t);
-
+struct lpfc_nodelist *lpfc_findnode_rpi(struct lpfc_vport *, uint16_t);
 void lpfc_worker_wake_up(struct lpfc_hba *);
 int lpfc_workq_post_event(struct lpfc_hba *, void *, void *, uint32_t);
 int lpfc_do_work(void *);
@@ -453,3 +454,11 @@ int lpfc_sli_probe_sriov_nr_virtfn(struct lpfc_hba *, int);
 uint16_t lpfc_sli_sriov_nr_virtfn_get(struct lpfc_hba *);
 int lpfc_sli4_queue_create(struct lpfc_hba *);
 void lpfc_sli4_queue_destroy(struct lpfc_hba *);
+void lpfc_sli4_abts_err_handler(struct lpfc_hba *, struct lpfc_nodelist *,
+				struct sli4_wcqe_xri_aborted *);
+int lpfc_hba_init_link_fc_topology(struct lpfc_hba *, uint32_t, uint32_t);
+int lpfc_issue_reg_vfi(struct lpfc_vport *);
+int lpfc_issue_unreg_vfi(struct lpfc_vport *);
+int lpfc_selective_reset(struct lpfc_hba *);
+int lpfc_sli4_read_config(struct lpfc_hba *phba);
+int lpfc_scsi_buf_update(struct lpfc_hba *phba);
diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c
index 28382596fb9a..3587a3fe8fcb 100644
--- a/drivers/scsi/lpfc/lpfc_debugfs.c
+++ b/drivers/scsi/lpfc/lpfc_debugfs.c
@@ -1997,7 +1997,8 @@ lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes,
 	/* Get slow-path event queue information */
 	len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
 			"Slow-path EQ information:\n");
-	len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+	if (phba->sli4_hba.sp_eq) {
+		len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
 			"\tEQID[%02d], "
 			"QE-COUNT[%04d], QE-SIZE[%04d], "
 			"HOST-INDEX[%04d], PORT-INDEX[%04d]\n\n",
@@ -2006,12 +2007,17 @@ lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes,
 			phba->sli4_hba.sp_eq->entry_size,
 			phba->sli4_hba.sp_eq->host_index,
 			phba->sli4_hba.sp_eq->hba_index);
+	}
 
 	/* Get fast-path event queue information */
 	len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
 			"Fast-path EQ information:\n");
-	for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++) {
-		len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+	if (phba->sli4_hba.fp_eq) {
+		for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count;
+		     fcp_qidx++) {
+			if (phba->sli4_hba.fp_eq[fcp_qidx]) {
+				len += snprintf(pbuffer+len,
+					LPFC_QUE_INFO_GET_BUF_SIZE-len,
 				"\tEQID[%02d], "
 				"QE-COUNT[%04d], QE-SIZE[%04d], "
 				"HOST-INDEX[%04d], PORT-INDEX[%04d]\n",
@@ -2020,16 +2026,19 @@ lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes,
 				phba->sli4_hba.fp_eq[fcp_qidx]->entry_size,
 				phba->sli4_hba.fp_eq[fcp_qidx]->host_index,
 				phba->sli4_hba.fp_eq[fcp_qidx]->hba_index);
+			}
+		}
 	}
 	len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
 
 	/* Get mailbox complete queue information */
 	len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
 			"Slow-path MBX CQ information:\n");
-	len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+	if (phba->sli4_hba.mbx_cq) {
+		len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
 			"Associated EQID[%02d]:\n",
 			phba->sli4_hba.mbx_cq->assoc_qid);
-	len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+		len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
 			"\tCQID[%02d], "
 			"QE-COUNT[%04d], QE-SIZE[%04d], "
 			"HOST-INDEX[%04d], PORT-INDEX[%04d]\n\n",
@@ -2038,14 +2047,16 @@ lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes,
 			phba->sli4_hba.mbx_cq->entry_size,
 			phba->sli4_hba.mbx_cq->host_index,
 			phba->sli4_hba.mbx_cq->hba_index);
+	}
 
 	/* Get slow-path complete queue information */
 	len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
 			"Slow-path ELS CQ information:\n");
-	len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+	if (phba->sli4_hba.els_cq) {
+		len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
 			"Associated EQID[%02d]:\n",
 			phba->sli4_hba.els_cq->assoc_qid);
-	len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+		len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
 			"\tCQID [%02d], "
 			"QE-COUNT[%04d], QE-SIZE[%04d], "
 			"HOST-INDEX[%04d], PORT-INDEX[%04d]\n\n",
@@ -2054,16 +2065,21 @@ lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes,
 			phba->sli4_hba.els_cq->entry_size,
 			phba->sli4_hba.els_cq->host_index,
 			phba->sli4_hba.els_cq->hba_index);
+	}
 
 	/* Get fast-path complete queue information */
 	len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
 			"Fast-path FCP CQ information:\n");
 	fcp_qidx = 0;
-	do {
-		len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+	if (phba->sli4_hba.fcp_cq) {
+		do {
+			if (phba->sli4_hba.fcp_cq[fcp_qidx]) {
+				len += snprintf(pbuffer+len,
+					LPFC_QUE_INFO_GET_BUF_SIZE-len,
 				"Associated EQID[%02d]:\n",
 				phba->sli4_hba.fcp_cq[fcp_qidx]->assoc_qid);
-		len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+				len += snprintf(pbuffer+len,
+					LPFC_QUE_INFO_GET_BUF_SIZE-len,
 				"\tCQID[%02d], "
 				"QE-COUNT[%04d], QE-SIZE[%04d], "
 				"HOST-INDEX[%04d], PORT-INDEX[%04d]\n",
@@ -2072,16 +2088,20 @@ lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes,
 				phba->sli4_hba.fcp_cq[fcp_qidx]->entry_size,
 				phba->sli4_hba.fcp_cq[fcp_qidx]->host_index,
 				phba->sli4_hba.fcp_cq[fcp_qidx]->hba_index);
-	} while (++fcp_qidx < phba->cfg_fcp_eq_count);
-	len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
+			}
+		} while (++fcp_qidx < phba->cfg_fcp_eq_count);
+		len += snprintf(pbuffer+len,
+				LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
+	}
 
 	/* Get mailbox queue information */
 	len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
 			"Slow-path MBX MQ information:\n");
-	len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+	if (phba->sli4_hba.mbx_wq) {
+		len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
 			"Associated CQID[%02d]:\n",
 			phba->sli4_hba.mbx_wq->assoc_qid);
-	len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+		len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
 			"\tWQID[%02d], "
 			"QE-COUNT[%04d], QE-SIZE[%04d], "
 			"HOST-INDEX[%04d], PORT-INDEX[%04d]\n\n",
@@ -2090,14 +2110,16 @@ lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes,
 			phba->sli4_hba.mbx_wq->entry_size,
 			phba->sli4_hba.mbx_wq->host_index,
 			phba->sli4_hba.mbx_wq->hba_index);
+	}
 
 	/* Get slow-path work queue information */
 	len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
 			"Slow-path ELS WQ information:\n");
-	len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+	if (phba->sli4_hba.els_wq) {
+		len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
 			"Associated CQID[%02d]:\n",
 			phba->sli4_hba.els_wq->assoc_qid);
-	len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+		len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
 			"\tWQID[%02d], "
 			"QE-COUNT[%04d], QE-SIZE[%04d], "
 			"HOST-INDEX[%04d], PORT-INDEX[%04d]\n\n",
@@ -2106,15 +2128,22 @@ lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes,
 			phba->sli4_hba.els_wq->entry_size,
 			phba->sli4_hba.els_wq->host_index,
 			phba->sli4_hba.els_wq->hba_index);
+	}
 
 	/* Get fast-path work queue information */
 	len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
 			"Fast-path FCP WQ information:\n");
-	for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++) {
-		len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+	if (phba->sli4_hba.fcp_wq) {
+		for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count;
+		     fcp_qidx++) {
+			if (!phba->sli4_hba.fcp_wq[fcp_qidx])
+				continue;
+			len += snprintf(pbuffer+len,
+					LPFC_QUE_INFO_GET_BUF_SIZE-len,
 				"Associated CQID[%02d]:\n",
 				phba->sli4_hba.fcp_wq[fcp_qidx]->assoc_qid);
-		len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+			len += snprintf(pbuffer+len,
+					LPFC_QUE_INFO_GET_BUF_SIZE-len,
 				"\tWQID[%02d], "
 				"QE-COUNT[%04d], WQE-SIZE[%04d], "
 				"HOST-INDEX[%04d], PORT-INDEX[%04d]\n",
@@ -2123,16 +2152,19 @@ lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes,
 				phba->sli4_hba.fcp_wq[fcp_qidx]->entry_size,
 				phba->sli4_hba.fcp_wq[fcp_qidx]->host_index,
 				phba->sli4_hba.fcp_wq[fcp_qidx]->hba_index);
+		}
+		len += snprintf(pbuffer+len,
+				LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
 	}
-	len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len, "\n");
 
 	/* Get receive queue information */
 	len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
 			"Slow-path RQ information:\n");
-	len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+	if (phba->sli4_hba.hdr_rq && phba->sli4_hba.dat_rq) {
+		len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
 			"Associated CQID[%02d]:\n",
 			phba->sli4_hba.hdr_rq->assoc_qid);
-	len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+		len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
 			"\tHQID[%02d], "
 			"QE-COUNT[%04d], QE-SIZE[%04d], "
 			"HOST-INDEX[%04d], PORT-INDEX[%04d]\n",
@@ -2141,7 +2173,7 @@ lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes,
 			phba->sli4_hba.hdr_rq->entry_size,
 			phba->sli4_hba.hdr_rq->host_index,
 			phba->sli4_hba.hdr_rq->hba_index);
-	len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
+		len += snprintf(pbuffer+len, LPFC_QUE_INFO_GET_BUF_SIZE-len,
 			"\tDQID[%02d], "
 			"QE-COUNT[%04d], QE-SIZE[%04d], "
 			"HOST-INDEX[%04d], PORT-INDEX[%04d]\n",
@@ -2150,7 +2182,7 @@ lpfc_idiag_queinfo_read(struct file *file, char __user *buf, size_t nbytes,
 			phba->sli4_hba.dat_rq->entry_size,
 			phba->sli4_hba.dat_rq->host_index,
 			phba->sli4_hba.dat_rq->hba_index);
-
+	}
 	return simple_read_from_buffer(buf, nbytes, ppos, pbuffer, len);
 }
 
@@ -2360,7 +2392,8 @@ lpfc_idiag_queacc_write(struct file *file, const char __user *buf,
 	switch (quetp) {
 	case LPFC_IDIAG_EQ:
 		/* Slow-path event queue */
-		if (phba->sli4_hba.sp_eq->queue_id == queid) {
+		if (phba->sli4_hba.sp_eq &&
+		    phba->sli4_hba.sp_eq->queue_id == queid) {
 			/* Sanity check */
 			rc = lpfc_idiag_que_param_check(
 					phba->sli4_hba.sp_eq, index, count);
@@ -2370,23 +2403,29 @@ lpfc_idiag_queacc_write(struct file *file, const char __user *buf,
 			goto pass_check;
 		}
 		/* Fast-path event queue */
-		for (qidx = 0; qidx < phba->cfg_fcp_eq_count; qidx++) {
-			if (phba->sli4_hba.fp_eq[qidx]->queue_id == queid) {
-				/* Sanity check */
-				rc = lpfc_idiag_que_param_check(
+		if (phba->sli4_hba.fp_eq) {
+			for (qidx = 0; qidx < phba->cfg_fcp_eq_count; qidx++) {
+				if (phba->sli4_hba.fp_eq[qidx] &&
+				    phba->sli4_hba.fp_eq[qidx]->queue_id ==
+				    queid) {
+					/* Sanity check */
+					rc = lpfc_idiag_que_param_check(
 						phba->sli4_hba.fp_eq[qidx],
 						index, count);
-				if (rc)
-					goto error_out;
-				idiag.ptr_private = phba->sli4_hba.fp_eq[qidx];
-				goto pass_check;
+					if (rc)
+						goto error_out;
+					idiag.ptr_private =
+						phba->sli4_hba.fp_eq[qidx];
+					goto pass_check;
+				}
 			}
 		}
 		goto error_out;
 		break;
 	case LPFC_IDIAG_CQ:
 		/* MBX complete queue */
-		if (phba->sli4_hba.mbx_cq->queue_id == queid) {
+		if (phba->sli4_hba.mbx_cq &&
+		    phba->sli4_hba.mbx_cq->queue_id == queid) {
 			/* Sanity check */
 			rc = lpfc_idiag_que_param_check(
 					phba->sli4_hba.mbx_cq, index, count);
@@ -2396,7 +2435,8 @@ lpfc_idiag_queacc_write(struct file *file, const char __user *buf,
 			goto pass_check;
 		}
 		/* ELS complete queue */
-		if (phba->sli4_hba.els_cq->queue_id == queid) {
+		if (phba->sli4_hba.els_cq &&
+		    phba->sli4_hba.els_cq->queue_id == queid) {
 			/* Sanity check */
 			rc = lpfc_idiag_que_param_check(
 					phba->sli4_hba.els_cq, index, count);
@@ -2406,25 +2446,30 @@ lpfc_idiag_queacc_write(struct file *file, const char __user *buf,
 			goto pass_check;
 		}
 		/* FCP complete queue */
-		qidx = 0;
-		do {
-			if (phba->sli4_hba.fcp_cq[qidx]->queue_id == queid) {
-				/* Sanity check */
-				rc = lpfc_idiag_que_param_check(
+		if (phba->sli4_hba.fcp_cq) {
+			qidx = 0;
+			do {
+				if (phba->sli4_hba.fcp_cq[qidx] &&
+				    phba->sli4_hba.fcp_cq[qidx]->queue_id ==
+				    queid) {
+					/* Sanity check */
+					rc = lpfc_idiag_que_param_check(
 						phba->sli4_hba.fcp_cq[qidx],
 						index, count);
-				if (rc)
-					goto error_out;
-				idiag.ptr_private =
+					if (rc)
+						goto error_out;
+					idiag.ptr_private =
 						phba->sli4_hba.fcp_cq[qidx];
-				goto pass_check;
-			}
-		} while (++qidx < phba->cfg_fcp_eq_count);
+					goto pass_check;
+				}
+			} while (++qidx < phba->cfg_fcp_eq_count);
+		}
 		goto error_out;
 		break;
 	case LPFC_IDIAG_MQ:
 		/* MBX work queue */
-		if (phba->sli4_hba.mbx_wq->queue_id == queid) {
+		if (phba->sli4_hba.mbx_wq &&
+		    phba->sli4_hba.mbx_wq->queue_id == queid) {
 			/* Sanity check */
 			rc = lpfc_idiag_que_param_check(
 					phba->sli4_hba.mbx_wq, index, count);
@@ -2433,10 +2478,12 @@ lpfc_idiag_queacc_write(struct file *file, const char __user *buf,
 			idiag.ptr_private = phba->sli4_hba.mbx_wq;
 			goto pass_check;
 		}
+		goto error_out;
 		break;
 	case LPFC_IDIAG_WQ:
 		/* ELS work queue */
-		if (phba->sli4_hba.els_wq->queue_id == queid) {
+		if (phba->sli4_hba.els_wq &&
+		    phba->sli4_hba.els_wq->queue_id == queid) {
 			/* Sanity check */
 			rc = lpfc_idiag_que_param_check(
 					phba->sli4_hba.els_wq, index, count);
@@ -2446,24 +2493,30 @@ lpfc_idiag_queacc_write(struct file *file, const char __user *buf,
 			goto pass_check;
 		}
 		/* FCP work queue */
-		for (qidx = 0; qidx < phba->cfg_fcp_wq_count; qidx++) {
-			if (phba->sli4_hba.fcp_wq[qidx]->queue_id == queid) {
-				/* Sanity check */
-				rc = lpfc_idiag_que_param_check(
+		if (phba->sli4_hba.fcp_wq) {
+			for (qidx = 0; qidx < phba->cfg_fcp_wq_count; qidx++) {
+				if (!phba->sli4_hba.fcp_wq[qidx])
+					continue;
+				if (phba->sli4_hba.fcp_wq[qidx]->queue_id ==
+				    queid) {
+					/* Sanity check */
+					rc = lpfc_idiag_que_param_check(
 						phba->sli4_hba.fcp_wq[qidx],
 						index, count);
-				if (rc)
-					goto error_out;
-				idiag.ptr_private =
-					phba->sli4_hba.fcp_wq[qidx];
-				goto pass_check;
+					if (rc)
+						goto error_out;
+					idiag.ptr_private =
+						phba->sli4_hba.fcp_wq[qidx];
+					goto pass_check;
+				}
 			}
 		}
 		goto error_out;
 		break;
 	case LPFC_IDIAG_RQ:
 		/* HDR queue */
-		if (phba->sli4_hba.hdr_rq->queue_id == queid) {
+		if (phba->sli4_hba.hdr_rq &&
+		    phba->sli4_hba.hdr_rq->queue_id == queid) {
 			/* Sanity check */
 			rc = lpfc_idiag_que_param_check(
 					phba->sli4_hba.hdr_rq, index, count);
@@ -2473,7 +2526,8 @@ lpfc_idiag_queacc_write(struct file *file, const char __user *buf,
 			goto pass_check;
 		}
 		/* DAT queue */
-		if (phba->sli4_hba.dat_rq->queue_id == queid) {
+		if (phba->sli4_hba.dat_rq &&
+		    phba->sli4_hba.dat_rq->queue_id == queid) {
 			/* Sanity check */
 			rc = lpfc_idiag_que_param_check(
 					phba->sli4_hba.dat_rq, index, count);
diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index 445826a4c981..7afc757338de 100644
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -421,13 +421,13 @@ fail:
  * @vport: pointer to a host virtual N_Port data structure.
  *
  * This routine issues a REG_VFI mailbox for the vfi, vpi, fcfi triplet for
- * the @vport. This mailbox command is necessary for FCoE only.
+ * the @vport. This mailbox command is necessary for SLI4 port only.
  *
  * Return code
  *   0 - successfully issued REG_VFI for @vport
  *   A failure code otherwise.
  **/
-static int
+int
 lpfc_issue_reg_vfi(struct lpfc_vport *vport)
 {
 	struct lpfc_hba  *phba = vport->phba;
@@ -438,10 +438,14 @@ lpfc_issue_reg_vfi(struct lpfc_vport *vport)
 	int rc = 0;
 
 	sp = &phba->fc_fabparam;
-	ndlp = lpfc_findnode_did(vport, Fabric_DID);
-	if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
-		rc = -ENODEV;
-		goto fail;
+	/* move forward in case of SLI4 FC port loopback test */
+	if ((phba->sli_rev == LPFC_SLI_REV4) &&
+	    !(phba->link_flag & LS_LOOPBACK_MODE)) {
+		ndlp = lpfc_findnode_did(vport, Fabric_DID);
+		if (!ndlp || !NLP_CHK_NODE_ACT(ndlp)) {
+			rc = -ENODEV;
+			goto fail;
+		}
 	}
 
 	dmabuf = kzalloc(sizeof(struct lpfc_dmabuf), GFP_KERNEL);
@@ -487,6 +491,54 @@ fail:
 }
 
 /**
+ * lpfc_issue_unreg_vfi - Unregister VFI for this vport's fabric login
+ * @vport: pointer to a host virtual N_Port data structure.
+ *
+ * This routine issues a UNREG_VFI mailbox with the vfi, vpi, fcfi triplet for
+ * the @vport. This mailbox command is necessary for SLI4 port only.
+ *
+ * Return code
+ *   0 - successfully issued REG_VFI for @vport
+ *   A failure code otherwise.
+ **/
+int
+lpfc_issue_unreg_vfi(struct lpfc_vport *vport)
+{
+	struct lpfc_hba *phba = vport->phba;
+	struct Scsi_Host *shost;
+	LPFC_MBOXQ_t *mboxq;
+	int rc;
+
+	mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+	if (!mboxq) {
+		lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
+				"2556 UNREG_VFI mbox allocation failed"
+				"HBA state x%x\n", phba->pport->port_state);
+		return -ENOMEM;
+	}
+
+	lpfc_unreg_vfi(mboxq, vport);
+	mboxq->vport = vport;
+	mboxq->mbox_cmpl = lpfc_unregister_vfi_cmpl;
+
+	rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_NOWAIT);
+	if (rc == MBX_NOT_FINISHED) {
+		lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
+				"2557 UNREG_VFI issue mbox failed rc x%x "
+				"HBA state x%x\n",
+				rc, phba->pport->port_state);
+		mempool_free(mboxq, phba->mbox_mem_pool);
+		return -EIO;
+	}
+
+	shost = lpfc_shost_from_vport(vport);
+	spin_lock_irq(shost->host_lock);
+	vport->fc_flag &= ~FC_VFI_REGISTERED;
+	spin_unlock_irq(shost->host_lock);
+	return 0;
+}
+
+/**
  * lpfc_check_clean_addr_bit - Check whether assigned FCID is clean.
  * @vport: pointer to a host virtual N_Port data structure.
  * @sp: pointer to service parameter data structure.
@@ -615,7 +667,9 @@ lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 					 "1816 FLOGI NPIV supported, "
 					 "response data 0x%x\n",
 					 sp->cmn.response_multiple_NPort);
+			spin_lock_irq(&phba->hbalock);
 			phba->link_flag |= LS_NPIV_FAB_SUPPORTED;
+			spin_unlock_irq(&phba->hbalock);
 		} else {
 			/* Because we asked f/w for NPIV it still expects us
 			to call reg_vnpid atleast for the physcial host */
@@ -623,7 +677,9 @@ lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 					 LOG_ELS | LOG_VPORT,
 					 "1817 Fabric does not support NPIV "
 					 "- configuring single port mode.\n");
+			spin_lock_irq(&phba->hbalock);
 			phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
+			spin_unlock_irq(&phba->hbalock);
 		}
 	}
 
@@ -686,11 +742,16 @@ lpfc_cmpl_els_flogi_fabric(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 			lpfc_do_scr_ns_plogi(phba, vport);
 		} else if (vport->fc_flag & FC_VFI_REGISTERED)
 			lpfc_issue_init_vpi(vport);
-		else
+		else {
+			lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
+					"3135 Need register VFI: (x%x/%x)\n",
+					vport->fc_prevDID, vport->fc_myDID);
 			lpfc_issue_reg_vfi(vport);
+		}
 	}
 	return 0;
 }
+
 /**
  * lpfc_cmpl_els_flogi_nport - Completion function for flogi to an N_Port
  * @vport: pointer to a host virtual N_Port data structure.
@@ -907,17 +968,16 @@ lpfc_cmpl_els_flogi(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 		 * LPFC_MAX_DISC_THREADS (32). Scanning in the case of no
 		 * alpa map would take too long otherwise.
 		 */
-		if (phba->alpa_map[0] == 0) {
+		if (phba->alpa_map[0] == 0)
 			vport->cfg_discovery_threads = LPFC_MAX_DISC_THREADS;
-			if ((phba->sli_rev == LPFC_SLI_REV4) &&
-			    (!(vport->fc_flag & FC_VFI_REGISTERED) ||
-			     (vport->fc_prevDID != vport->fc_myDID))) {
-				if (vport->fc_flag & FC_VFI_REGISTERED)
-					lpfc_sli4_unreg_all_rpis(vport);
-				lpfc_issue_reg_vfi(vport);
-				lpfc_nlp_put(ndlp);
-				goto out;
-			}
+		if ((phba->sli_rev == LPFC_SLI_REV4) &&
+		    (!(vport->fc_flag & FC_VFI_REGISTERED) ||
+		     (vport->fc_prevDID != vport->fc_myDID))) {
+			if (vport->fc_flag & FC_VFI_REGISTERED)
+				lpfc_sli4_unreg_all_rpis(vport);
+			lpfc_issue_reg_vfi(vport);
+			lpfc_nlp_put(ndlp);
+			goto out;
 		}
 		goto flogifail;
 	}
@@ -1075,6 +1135,7 @@ lpfc_issue_els_flogi(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 	/* Setup CSPs accordingly for Fabric */
 	sp->cmn.e_d_tov = 0;
 	sp->cmn.w2.r_a_tov = 0;
+	sp->cmn.virtual_fabric_support = 0;
 	sp->cls1.classValid = 0;
 	sp->cls2.seqDelivery = 1;
 	sp->cls3.seqDelivery = 1;
@@ -1163,8 +1224,7 @@ lpfc_els_abort_flogi(struct lpfc_hba *phba)
 	spin_lock_irq(&phba->hbalock);
 	list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
 		icmd = &iocb->iocb;
-		if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR &&
-		    icmd->un.elsreq64.bdl.ulpIoTag32) {
+		if (icmd->ulpCommand == CMD_ELS_REQUEST64_CR) {
 			ndlp = (struct lpfc_nodelist *)(iocb->context1);
 			if (ndlp && NLP_CHK_NODE_ACT(ndlp) &&
 			    (ndlp->nlp_DID == Fabric_DID))
@@ -3066,17 +3126,22 @@ lpfc_els_retry(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 	if (did == FDMI_DID)
 		retry = 1;
 
-	if (((cmd == ELS_CMD_FLOGI) || (cmd == ELS_CMD_FDISC)) &&
+	if ((cmd == ELS_CMD_FLOGI) &&
 	    (phba->fc_topology != LPFC_TOPOLOGY_LOOP) &&
 	    !lpfc_error_lost_link(irsp)) {
 		/* FLOGI retry policy */
 		retry = 1;
-		/* retry forever */
+		/* retry FLOGI forever */
 		maxretry = 0;
 		if (cmdiocb->retry >= 100)
 			delay = 5000;
 		else if (cmdiocb->retry >= 32)
 			delay = 1000;
+	} else if ((cmd == ELS_CMD_FDISC) && !lpfc_error_lost_link(irsp)) {
+		/* retry FDISCs every second up to devloss */
+		retry = 1;
+		maxretry = vport->cfg_devloss_tmo;
+		delay = 1000;
 	}
 
 	cmdiocb->retry++;
@@ -3389,11 +3454,17 @@ lpfc_cmpl_els_logo_acc(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 
 	/*
 	 * The driver received a LOGO from the rport and has ACK'd it.
-	 * At this point, the driver is done so release the IOCB and
-	 * remove the ndlp reference.
+	 * At this point, the driver is done so release the IOCB
 	 */
 	lpfc_els_free_iocb(phba, cmdiocb);
-	lpfc_nlp_put(ndlp);
+
+	/*
+	 * Remove the ndlp reference if it's a fabric node that has
+	 * sent us an unsolicted LOGO.
+	 */
+	if (ndlp->nlp_type & NLP_FABRIC)
+		lpfc_nlp_put(ndlp);
+
 	return;
 }
 
@@ -4867,23 +4938,31 @@ lpfc_els_rcv_flogi(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
 			    sizeof(struct lpfc_name));
 
 		if (!rc) {
-			mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
-			if (!mbox)
+			if (phba->sli_rev < LPFC_SLI_REV4) {
+				mbox = mempool_alloc(phba->mbox_mem_pool,
+						     GFP_KERNEL);
+				if (!mbox)
+					return 1;
+				lpfc_linkdown(phba);
+				lpfc_init_link(phba, mbox,
+					       phba->cfg_topology,
+					       phba->cfg_link_speed);
+				mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
+				mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
+				mbox->vport = vport;
+				rc = lpfc_sli_issue_mbox(phba, mbox,
+							 MBX_NOWAIT);
+				lpfc_set_loopback_flag(phba);
+				if (rc == MBX_NOT_FINISHED)
+					mempool_free(mbox, phba->mbox_mem_pool);
 				return 1;
-
-			lpfc_linkdown(phba);
-			lpfc_init_link(phba, mbox,
-				       phba->cfg_topology,
-				       phba->cfg_link_speed);
-			mbox->u.mb.un.varInitLnk.lipsr_AL_PA = 0;
-			mbox->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
-			mbox->vport = vport;
-			rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
-			lpfc_set_loopback_flag(phba);
-			if (rc == MBX_NOT_FINISHED) {
-				mempool_free(mbox, phba->mbox_mem_pool);
+			} else {
+				/* abort the flogi coming back to ourselves
+				 * due to external loopback on the port.
+				 */
+				lpfc_els_abort_flogi(phba);
+				return 0;
 			}
-			return 1;
 		} else if (rc > 0) {	/* greater than */
 			spin_lock_irq(shost->host_lock);
 			vport->fc_flag |= FC_PT2PT_PLOGI;
@@ -5838,8 +5917,12 @@ lpfc_els_rcv_fan(struct lpfc_vport *vport, struct lpfc_iocbq *cmdiocb,
 			vport->fc_myDID = vport->fc_prevDID;
 			if (phba->sli_rev < LPFC_SLI_REV4)
 				lpfc_issue_fabric_reglogin(vport);
-			else
+			else {
+				lpfc_printf_vlog(vport, KERN_INFO, LOG_ELS,
+					"3138 Need register VFI: (x%x/%x)\n",
+					vport->fc_prevDID, vport->fc_myDID);
 				lpfc_issue_reg_vfi(vport);
+			}
 		}
 	}
 	return 0;
@@ -6596,56 +6679,6 @@ dropit:
 }
 
 /**
- * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier
- * @phba: pointer to lpfc hba data structure.
- * @vpi: host virtual N_Port identifier.
- *
- * This routine finds a vport on a HBA (referred by @phba) through a
- * @vpi. The function walks the HBA's vport list and returns the address
- * of the vport with the matching @vpi.
- *
- * Return code
- *    NULL - No vport with the matching @vpi found
- *    Otherwise - Address to the vport with the matching @vpi.
- **/
-struct lpfc_vport *
-lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi)
-{
-	struct lpfc_vport *vport;
-	unsigned long flags;
-	int i = 0;
-
-	/* The physical ports are always vpi 0 - translate is unnecessary. */
-	if (vpi > 0) {
-		/*
-		 * Translate the physical vpi to the logical vpi.  The
-		 * vport stores the logical vpi.
-		 */
-		for (i = 0; i < phba->max_vpi; i++) {
-			if (vpi == phba->vpi_ids[i])
-				break;
-		}
-
-		if (i >= phba->max_vpi) {
-			lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
-					 "2936 Could not find Vport mapped "
-					 "to vpi %d\n", vpi);
-			return NULL;
-		}
-	}
-
-	spin_lock_irqsave(&phba->hbalock, flags);
-	list_for_each_entry(vport, &phba->port_list, listentry) {
-		if (vport->vpi == i) {
-			spin_unlock_irqrestore(&phba->hbalock, flags);
-			return vport;
-		}
-	}
-	spin_unlock_irqrestore(&phba->hbalock, flags);
-	return NULL;
-}
-
-/**
  * lpfc_els_unsol_event - Process an unsolicited event from an els sli ring
  * @phba: pointer to lpfc hba data structure.
  * @pring: pointer to a SLI ring.
@@ -7281,6 +7314,7 @@ lpfc_issue_els_fdisc(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 	/* Setup CSPs accordingly for Fabric */
 	sp->cmn.e_d_tov = 0;
 	sp->cmn.w2.r_a_tov = 0;
+	sp->cmn.virtual_fabric_support = 0;
 	sp->cls1.classValid = 0;
 	sp->cls2.seqDelivery = 1;
 	sp->cls3.seqDelivery = 1;
diff --git a/drivers/scsi/lpfc/lpfc_hbadisc.c b/drivers/scsi/lpfc/lpfc_hbadisc.c
index 091f68e5cb70..678a4b11059c 100644
--- a/drivers/scsi/lpfc/lpfc_hbadisc.c
+++ b/drivers/scsi/lpfc/lpfc_hbadisc.c
@@ -1074,6 +1074,12 @@ lpfc_mbx_cmpl_local_config_link(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 
 	mempool_free(pmb, phba->mbox_mem_pool);
 
+	/* don't perform discovery for SLI4 loopback diagnostic test */
+	if ((phba->sli_rev == LPFC_SLI_REV4) &&
+	    !(phba->hba_flag & HBA_FCOE_MODE) &&
+	    (phba->link_flag & LS_LOOPBACK_MODE))
+		return;
+
 	if (phba->fc_topology == LPFC_TOPOLOGY_LOOP &&
 	    vport->fc_flag & FC_PUBLIC_LOOP &&
 	    !(vport->fc_flag & FC_LBIT)) {
@@ -2646,9 +2652,14 @@ lpfc_init_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
 {
 	struct lpfc_vport *vport = mboxq->vport;
 
-	/* VFI not supported on interface type 0, just do the flogi */
-	if (mboxq->u.mb.mbxStatus && (bf_get(lpfc_sli_intf_if_type,
-	    &phba->sli4_hba.sli_intf) != LPFC_SLI_INTF_IF_TYPE_0)) {
+	/*
+	 * VFI not supported on interface type 0, just do the flogi
+	 * Also continue if the VFI is in use - just use the same one.
+	 */
+	if (mboxq->u.mb.mbxStatus &&
+	    (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) !=
+			LPFC_SLI_INTF_IF_TYPE_0) &&
+	    mboxq->u.mb.mbxStatus != MBX_VFI_IN_USE) {
 		lpfc_printf_vlog(vport, KERN_ERR,
 				LOG_MBOX,
 				"2891 Init VFI mailbox failed 0x%x\n",
@@ -2842,10 +2853,10 @@ lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
 			lpfc_disc_list_loopmap(vport);
 			/* Start discovery */
 			lpfc_disc_start(vport);
-			goto fail_free_mem;
+			goto out_free_mem;
 		}
 		lpfc_vport_set_state(vport, FC_VPORT_FAILED);
-		goto fail_free_mem;
+		goto out_free_mem;
 	}
 	/* The VPI is implicitly registered when the VFI is registered */
 	spin_lock_irq(shost->host_lock);
@@ -2855,10 +2866,16 @@ lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
 	vport->fc_flag &= ~FC_VPORT_NEEDS_INIT_VPI;
 	spin_unlock_irq(shost->host_lock);
 
+	/* In case SLI4 FC loopback test, we are ready */
+	if ((phba->sli_rev == LPFC_SLI_REV4) &&
+	    (phba->link_flag & LS_LOOPBACK_MODE)) {
+		phba->link_state = LPFC_HBA_READY;
+		goto out_free_mem;
+	}
+
 	if (vport->port_state == LPFC_FABRIC_CFG_LINK) {
 		/* For private loop just start discovery and we are done. */
 		if ((phba->fc_topology == LPFC_TOPOLOGY_LOOP) &&
-		    (phba->alpa_map[0] == 0) &&
 		    !(vport->fc_flag & FC_PUBLIC_LOOP)) {
 			/* Use loop map to make discovery list */
 			lpfc_disc_list_loopmap(vport);
@@ -2870,7 +2887,7 @@ lpfc_mbx_cmpl_reg_vfi(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
 		}
 	}
 
-fail_free_mem:
+out_free_mem:
 	mempool_free(mboxq, phba->mbox_mem_pool);
 	lpfc_mbuf_free(phba, dmabuf->virt, dmabuf->phys);
 	kfree(dmabuf);
@@ -2923,6 +2940,7 @@ lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la)
 {
 	struct lpfc_vport *vport = phba->pport;
 	LPFC_MBOXQ_t *sparam_mbox, *cfglink_mbox = NULL;
+	struct Scsi_Host *shost;
 	int i;
 	struct lpfc_dmabuf *mp;
 	int rc;
@@ -2946,6 +2964,7 @@ lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la)
 	phba->fc_topology = bf_get(lpfc_mbx_read_top_topology, la);
 	phba->link_flag &= ~LS_NPIV_FAB_SUPPORTED;
 
+	shost = lpfc_shost_from_vport(vport);
 	if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
 		phba->sli3_options &= ~LPFC_SLI3_NPIV_ENABLED;
 
@@ -2957,8 +2976,11 @@ lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la)
 				"1309 Link Up Event npiv not supported in loop "
 				"topology\n");
 				/* Get Loop Map information */
-		if (bf_get(lpfc_mbx_read_top_il, la))
+		if (bf_get(lpfc_mbx_read_top_il, la)) {
+			spin_lock_irq(shost->host_lock);
 			vport->fc_flag |= FC_LBIT;
+			spin_unlock_irq(shost->host_lock);
+		}
 
 		vport->fc_myDID = bf_get(lpfc_mbx_read_top_alpa_granted, la);
 		i = la->lilpBde64.tus.f.bdeSize;
@@ -3003,11 +3025,13 @@ lpfc_mbx_process_link_up(struct lpfc_hba *phba, struct lpfc_mbx_read_top *la)
 	} else {
 		if (!(phba->sli3_options & LPFC_SLI3_NPIV_ENABLED)) {
 			if (phba->max_vpi && phba->cfg_enable_npiv &&
-			   (phba->sli_rev == 3))
+			   (phba->sli_rev >= LPFC_SLI_REV3))
 				phba->sli3_options |= LPFC_SLI3_NPIV_ENABLED;
 		}
 		vport->fc_myDID = phba->fc_pref_DID;
+		spin_lock_irq(shost->host_lock);
 		vport->fc_flag |= FC_LBIT;
+		spin_unlock_irq(shost->host_lock);
 	}
 	spin_unlock_irq(&phba->hbalock);
 
@@ -3224,15 +3248,14 @@ lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 	} else if (bf_get(lpfc_mbx_read_top_att_type, la) ==
 		   LPFC_ATT_LINK_DOWN) {
 		phba->fc_stat.LinkDown++;
-		if (phba->link_flag & LS_LOOPBACK_MODE) {
+		if (phba->link_flag & LS_LOOPBACK_MODE)
 			lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 				"1308 Link Down Event in loop back mode "
 				"x%x received "
 				"Data: x%x x%x x%x\n",
 				la->eventTag, phba->fc_eventTag,
 				phba->pport->port_state, vport->fc_flag);
-		}
-		else {
+		else
 			lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
 				"1305 Link Down Event x%x received "
 				"Data: x%x x%x x%x x%x x%x\n",
@@ -3240,7 +3263,6 @@ lpfc_mbx_cmpl_read_topology(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 				phba->pport->port_state, vport->fc_flag,
 				bf_get(lpfc_mbx_read_top_mm, la),
 				bf_get(lpfc_mbx_read_top_fa, la));
-		}
 		lpfc_mbx_issue_link_down(phba);
 	}
 	if ((bf_get(lpfc_mbx_read_top_mm, la)) &&
@@ -3594,6 +3616,7 @@ lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 	MAILBOX_t *mb = &pmb->u.mb;
 	struct lpfc_dmabuf *mp = (struct lpfc_dmabuf *) (pmb->context1);
 	struct lpfc_nodelist *ndlp;
+	struct Scsi_Host *shost;
 
 	ndlp = (struct lpfc_nodelist *) pmb->context2;
 	pmb->context1 = NULL;
@@ -3639,8 +3662,12 @@ lpfc_mbx_cmpl_fabric_reg_login(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 		 * vport discovery */
 		if (!(vport->fc_flag & FC_LOGO_RCVD_DID_CHNG))
 			lpfc_start_fdiscs(phba);
-		else
+		else {
+			shost = lpfc_shost_from_vport(vport);
+			spin_lock_irq(shost->host_lock);
 			vport->fc_flag &= ~FC_LOGO_RCVD_DID_CHNG ;
+			spin_unlock_irq(shost->host_lock);
+		}
 		lpfc_do_scr_ns_plogi(phba, vport);
 	}
 
@@ -5353,6 +5380,73 @@ lpfc_findnode_wwpn(struct lpfc_vport *vport, struct lpfc_name *wwpn)
 	return ndlp;
 }
 
+/*
+ * This routine looks up the ndlp lists for the given RPI. If the rpi
+ * is found, the routine returns the node element list pointer else
+ * return NULL.
+ */
+struct lpfc_nodelist *
+lpfc_findnode_rpi(struct lpfc_vport *vport, uint16_t rpi)
+{
+	struct Scsi_Host *shost = lpfc_shost_from_vport(vport);
+	struct lpfc_nodelist *ndlp;
+
+	spin_lock_irq(shost->host_lock);
+	ndlp = __lpfc_findnode_rpi(vport, rpi);
+	spin_unlock_irq(shost->host_lock);
+	return ndlp;
+}
+
+/**
+ * lpfc_find_vport_by_vpid - Find a vport on a HBA through vport identifier
+ * @phba: pointer to lpfc hba data structure.
+ * @vpi: the physical host virtual N_Port identifier.
+ *
+ * This routine finds a vport on a HBA (referred by @phba) through a
+ * @vpi. The function walks the HBA's vport list and returns the address
+ * of the vport with the matching @vpi.
+ *
+ * Return code
+ *    NULL - No vport with the matching @vpi found
+ *    Otherwise - Address to the vport with the matching @vpi.
+ **/
+struct lpfc_vport *
+lpfc_find_vport_by_vpid(struct lpfc_hba *phba, uint16_t vpi)
+{
+	struct lpfc_vport *vport;
+	unsigned long flags;
+	int i = 0;
+
+	/* The physical ports are always vpi 0 - translate is unnecessary. */
+	if (vpi > 0) {
+		/*
+		 * Translate the physical vpi to the logical vpi.  The
+		 * vport stores the logical vpi.
+		 */
+		for (i = 0; i < phba->max_vpi; i++) {
+			if (vpi == phba->vpi_ids[i])
+				break;
+		}
+
+		if (i >= phba->max_vpi) {
+			lpfc_printf_log(phba, KERN_ERR, LOG_ELS,
+					 "2936 Could not find Vport mapped "
+					 "to vpi %d\n", vpi);
+			return NULL;
+		}
+	}
+
+	spin_lock_irqsave(&phba->hbalock, flags);
+	list_for_each_entry(vport, &phba->port_list, listentry) {
+		if (vport->vpi == i) {
+			spin_unlock_irqrestore(&phba->hbalock, flags);
+			return vport;
+		}
+	}
+	spin_unlock_irqrestore(&phba->hbalock, flags);
+	return NULL;
+}
+
 void
 lpfc_nlp_init(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 	      uint32_t did)
@@ -5599,7 +5693,7 @@ out:
  *
  * This function frees memory associated with the mailbox command.
  */
-static void
+void
 lpfc_unregister_vfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
 {
 	struct lpfc_vport *vport = mboxq->vport;
@@ -5651,7 +5745,6 @@ lpfc_unregister_fcfi_cmpl(struct lpfc_hba *phba, LPFC_MBOXQ_t *mboxq)
 int
 lpfc_unregister_fcf_prep(struct lpfc_hba *phba)
 {
-	LPFC_MBOXQ_t *mbox;
 	struct lpfc_vport **vports;
 	struct lpfc_nodelist *ndlp;
 	struct Scsi_Host *shost;
@@ -5687,35 +5780,9 @@ lpfc_unregister_fcf_prep(struct lpfc_hba *phba)
 	/* Cleanup any outstanding ELS commands */
 	lpfc_els_flush_all_cmd(phba);
 
-	/* Unregister VFI */
-	mbox = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
-	if (!mbox) {
-		lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
-				"2556 UNREG_VFI mbox allocation failed"
-				"HBA state x%x\n", phba->pport->port_state);
-		return -ENOMEM;
-	}
-
-	lpfc_unreg_vfi(mbox, phba->pport);
-	mbox->vport = phba->pport;
-	mbox->mbox_cmpl = lpfc_unregister_vfi_cmpl;
-
-	rc = lpfc_sli_issue_mbox(phba, mbox, MBX_NOWAIT);
-	if (rc == MBX_NOT_FINISHED) {
-		lpfc_printf_log(phba, KERN_ERR, LOG_DISCOVERY|LOG_MBOX,
-				"2557 UNREG_VFI issue mbox failed rc x%x "
-				"HBA state x%x\n",
-				rc, phba->pport->port_state);
-		mempool_free(mbox, phba->mbox_mem_pool);
-		return -EIO;
-	}
-
-	shost = lpfc_shost_from_vport(phba->pport);
-	spin_lock_irq(shost->host_lock);
-	phba->pport->fc_flag &= ~FC_VFI_REGISTERED;
-	spin_unlock_irq(shost->host_lock);
-
-	return 0;
+	/* Unregister the physical port VFI */
+	rc = lpfc_issue_unreg_vfi(phba->pport);
+	return rc;
 }
 
 /**
diff --git a/drivers/scsi/lpfc/lpfc_hw.h b/drivers/scsi/lpfc/lpfc_hw.h
index 046edc4ab35f..7245bead3755 100644
--- a/drivers/scsi/lpfc/lpfc_hw.h
+++ b/drivers/scsi/lpfc/lpfc_hw.h
@@ -349,6 +349,12 @@ struct csp {
  * Word 1 Bit 31 in FLOGI response is clean address bit
  */
 #define clean_address_bit request_multiple_Nport /* Word 1, bit 31 */
+/*
+ * Word 1 Bit 30 in common service parameter is overloaded.
+ * Word 1 Bit 30 in FLOGI request is Virtual Fabrics
+ * Word 1 Bit 30 in PLOGI request is random offset
+ */
+#define virtual_fabric_support randomOffset /* Word 1, bit 30 */
 #ifdef __BIG_ENDIAN_BITFIELD
 	uint16_t request_multiple_Nport:1;	/* FC Word 1, bit 31 */
 	uint16_t randomOffset:1;	/* FC Word 1, bit 30 */
@@ -1852,8 +1858,8 @@ typedef struct {
 	uint8_t fabric_AL_PA;	/* If using a Fabric Assigned AL_PA */
 #endif
 
-#define FLAGS_LOCAL_LB               0x01 /* link_flags (=1) ENDEC loopback */
 #define FLAGS_TOPOLOGY_MODE_LOOP_PT  0x00 /* Attempt loop then pt-pt */
+#define FLAGS_LOCAL_LB               0x01 /* link_flags (=1) ENDEC loopback */
 #define FLAGS_TOPOLOGY_MODE_PT_PT    0x02 /* Attempt pt-pt only */
 #define FLAGS_TOPOLOGY_MODE_LOOP     0x04 /* Attempt loop only */
 #define FLAGS_TOPOLOGY_MODE_PT_LOOP  0x06 /* Attempt pt-pt then loop */
@@ -2819,7 +2825,8 @@ typedef struct {
 #ifdef __BIG_ENDIAN_BITFIELD
 	uint32_t rsvd1     : 19;  /* Reserved                             */
 	uint32_t cdss      :  1;  /* Configure Data Security SLI          */
-	uint32_t rsvd2     :  3;  /* Reserved                             */
+	uint32_t casabt    :  1;  /* Configure async abts status notice   */
+	uint32_t rsvd2     :  2;  /* Reserved                             */
 	uint32_t cbg       :  1;  /* Configure BlockGuard                 */
 	uint32_t cmv       :  1;  /* Configure Max VPIs                   */
 	uint32_t ccrp      :  1;  /* Config Command Ring Polling          */
@@ -2839,14 +2846,16 @@ typedef struct {
 	uint32_t ccrp      :  1;  /* Config Command Ring Polling          */
 	uint32_t cmv	   :  1;  /* Configure Max VPIs                   */
 	uint32_t cbg       :  1;  /* Configure BlockGuard                 */
-	uint32_t rsvd2     :  3;  /* Reserved                             */
+	uint32_t rsvd2     :  2;  /* Reserved                             */
+	uint32_t casabt    :  1;  /* Configure async abts status notice   */
 	uint32_t cdss      :  1;  /* Configure Data Security SLI          */
 	uint32_t rsvd1     : 19;  /* Reserved                             */
 #endif
 #ifdef __BIG_ENDIAN_BITFIELD
 	uint32_t rsvd3     : 19;  /* Reserved                             */
 	uint32_t gdss      :  1;  /* Configure Data Security SLI          */
-	uint32_t rsvd4     :  3;  /* Reserved                             */
+	uint32_t gasabt    :  1;  /* Grant async abts status notice       */
+	uint32_t rsvd4     :  2;  /* Reserved                             */
 	uint32_t gbg       :  1;  /* Grant BlockGuard                     */
 	uint32_t gmv	   :  1;  /* Grant Max VPIs                       */
 	uint32_t gcrp	   :  1;  /* Grant Command Ring Polling           */
@@ -2866,7 +2875,8 @@ typedef struct {
 	uint32_t gcrp	   :  1;  /* Grant Command Ring Polling           */
 	uint32_t gmv	   :  1;  /* Grant Max VPIs                       */
 	uint32_t gbg       :  1;  /* Grant BlockGuard                     */
-	uint32_t rsvd4     :  3;  /* Reserved                             */
+	uint32_t rsvd4     :  2;  /* Reserved                             */
+	uint32_t gasabt    :  1;  /* Grant async abts status notice       */
 	uint32_t gdss      :  1;  /* Configure Data Security SLI          */
 	uint32_t rsvd3     : 19;  /* Reserved                             */
 #endif
@@ -3465,6 +3475,7 @@ typedef struct {
 } ASYNCSTAT_FIELDS;
 #define ASYNC_TEMP_WARN		0x100
 #define ASYNC_TEMP_SAFE		0x101
+#define ASYNC_STATUS_CN		0x102
 
 /* IOCB Command template for CMD_IOCB_RCV_ELS64_CX (0xB7)
    or CMD_IOCB_RCV_SEQ64_CX (0xB5) */
diff --git a/drivers/scsi/lpfc/lpfc_hw4.h b/drivers/scsi/lpfc/lpfc_hw4.h
index 98d21521f539..e5bfa7f334e3 100644
--- a/drivers/scsi/lpfc/lpfc_hw4.h
+++ b/drivers/scsi/lpfc/lpfc_hw4.h
@@ -1351,11 +1351,11 @@ struct lpfc_mbx_set_link_diag_loopback {
 		struct {
 			uint32_t word0;
 #define lpfc_mbx_set_diag_lpbk_type_SHIFT	0
-#define lpfc_mbx_set_diag_lpbk_type_MASK	0x00000001
+#define lpfc_mbx_set_diag_lpbk_type_MASK	0x00000003
 #define lpfc_mbx_set_diag_lpbk_type_WORD	word0
 #define LPFC_DIAG_LOOPBACK_TYPE_DISABLE		0x0
 #define LPFC_DIAG_LOOPBACK_TYPE_INTERNAL	0x1
-#define LPFC_DIAG_LOOPBACK_TYPE_EXTERNAL	0x2
+#define LPFC_DIAG_LOOPBACK_TYPE_SERDES		0x2
 #define lpfc_mbx_set_diag_lpbk_link_num_SHIFT	16
 #define lpfc_mbx_set_diag_lpbk_link_num_MASK	0x0000003F
 #define lpfc_mbx_set_diag_lpbk_link_num_WORD	word0
@@ -1830,6 +1830,8 @@ struct lpfc_mbx_init_vfi {
 #define lpfc_init_vfi_hop_count_MASK	0x000000FF
 #define lpfc_init_vfi_hop_count_WORD	word4
 };
+#define MBX_VFI_IN_USE			0x9F02
+
 
 struct lpfc_mbx_reg_vfi {
 	uint32_t word1;
@@ -2104,6 +2106,8 @@ struct lpfc_mbx_read_config {
 #define lpfc_mbx_rd_conf_lnk_type_SHIFT		6
 #define lpfc_mbx_rd_conf_lnk_type_MASK		0x00000003
 #define lpfc_mbx_rd_conf_lnk_type_WORD		word2
+#define LPFC_LNK_TYPE_GE	0
+#define LPFC_LNK_TYPE_FC	1
 #define lpfc_mbx_rd_conf_lnk_ldv_SHIFT		8
 #define lpfc_mbx_rd_conf_lnk_ldv_MASK		0x00000001
 #define lpfc_mbx_rd_conf_lnk_ldv_WORD		word2
@@ -3320,6 +3324,9 @@ struct wqe_rctl_dfctl {
 #define wqe_la_SHIFT 3
 #define wqe_la_MASK  0x000000001
 #define wqe_la_WORD  word5
+#define wqe_xo_SHIFT	6
+#define wqe_xo_MASK	0x000000001
+#define wqe_xo_WORD	word5
 #define wqe_ls_SHIFT 7
 #define wqe_ls_MASK  0x000000001
 #define wqe_ls_WORD  word5
diff --git a/drivers/scsi/lpfc/lpfc_init.c b/drivers/scsi/lpfc/lpfc_init.c
index 55bc4fc7376f..dfea2dada02c 100644
--- a/drivers/scsi/lpfc/lpfc_init.c
+++ b/drivers/scsi/lpfc/lpfc_init.c
@@ -62,7 +62,6 @@ static int lpfc_post_rcv_buf(struct lpfc_hba *);
 static int lpfc_sli4_queue_verify(struct lpfc_hba *);
 static int lpfc_create_bootstrap_mbox(struct lpfc_hba *);
 static int lpfc_setup_endian_order(struct lpfc_hba *);
-static int lpfc_sli4_read_config(struct lpfc_hba *);
 static void lpfc_destroy_bootstrap_mbox(struct lpfc_hba *);
 static void lpfc_free_sgl_list(struct lpfc_hba *);
 static int lpfc_init_sgl_list(struct lpfc_hba *);
@@ -475,27 +474,6 @@ lpfc_config_port_post(struct lpfc_hba *phba)
 	/* Get the default values for Model Name and Description */
 	lpfc_get_hba_model_desc(phba, phba->ModelName, phba->ModelDesc);
 
-	if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_16G)
-	    || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G)
-		&& !(phba->lmt & LMT_1Gb))
-	    || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G)
-		&& !(phba->lmt & LMT_2Gb))
-	    || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G)
-		&& !(phba->lmt & LMT_4Gb))
-	    || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G)
-		&& !(phba->lmt & LMT_8Gb))
-	    || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G)
-		&& !(phba->lmt & LMT_10Gb))
-	    || ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G)
-		&& !(phba->lmt & LMT_16Gb))) {
-		/* Reset link speed to auto */
-		lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
-			"1302 Invalid speed for this board: "
-			"Reset link speed to auto: x%x\n",
-			phba->cfg_link_speed);
-			phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
-	}
-
 	phba->link_state = LPFC_LINK_DOWN;
 
 	/* Only process IOCBs on ELS ring till hba_state is READY */
@@ -585,28 +563,10 @@ lpfc_config_port_post(struct lpfc_hba *phba)
 			return -EIO;
 		}
 	} else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
-		lpfc_init_link(phba, pmb, phba->cfg_topology,
-			phba->cfg_link_speed);
-		pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
-		lpfc_set_loopback_flag(phba);
-		rc = lpfc_sli_issue_mbox(phba, pmb, MBX_NOWAIT);
-		if (rc != MBX_SUCCESS) {
-			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
-				"0454 Adapter failed to init, mbxCmd x%x "
-				"INIT_LINK, mbxStatus x%x\n",
-				mb->mbxCommand, mb->mbxStatus);
-
-			/* Clear all interrupt enable conditions */
-			writel(0, phba->HCregaddr);
-			readl(phba->HCregaddr); /* flush */
-			/* Clear all pending interrupts */
-			writel(0xffffffff, phba->HAregaddr);
-			readl(phba->HAregaddr); /* flush */
-			phba->link_state = LPFC_HBA_ERROR;
-			if (rc != MBX_BUSY)
-				mempool_free(pmb, phba->mbox_mem_pool);
-			return -EIO;
-		}
+		mempool_free(pmb, phba->mbox_mem_pool);
+		rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
+		if (rc)
+			return rc;
 	}
 	/* MBOX buffer will be freed in mbox compl */
 	pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
@@ -668,6 +628,28 @@ lpfc_config_port_post(struct lpfc_hba *phba)
 int
 lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 {
+	return lpfc_hba_init_link_fc_topology(phba, phba->cfg_topology, flag);
+}
+
+/**
+ * lpfc_hba_init_link_fc_topology - Initialize FC link with desired topology
+ * @phba: pointer to lpfc hba data structure.
+ * @fc_topology: desired fc topology.
+ * @flag: mailbox command issue mode - either MBX_POLL or MBX_NOWAIT
+ *
+ * This routine will issue the INIT_LINK mailbox command call.
+ * It is available to other drivers through the lpfc_hba data
+ * structure for use as a delayed link up mechanism with the
+ * module parameter lpfc_suppress_link_up.
+ *
+ * Return code
+ *              0 - success
+ *              Any other value - error
+ **/
+int
+lpfc_hba_init_link_fc_topology(struct lpfc_hba *phba, uint32_t fc_topology,
+			       uint32_t flag)
+{
 	struct lpfc_vport *vport = phba->pport;
 	LPFC_MBOXQ_t *pmb;
 	MAILBOX_t *mb;
@@ -681,9 +663,30 @@ lpfc_hba_init_link(struct lpfc_hba *phba, uint32_t flag)
 	mb = &pmb->u.mb;
 	pmb->vport = vport;
 
-	lpfc_init_link(phba, pmb, phba->cfg_topology, phba->cfg_link_speed);
+	if ((phba->cfg_link_speed > LPFC_USER_LINK_SPEED_MAX) ||
+	    ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_1G) &&
+	     !(phba->lmt & LMT_1Gb)) ||
+	    ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_2G) &&
+	     !(phba->lmt & LMT_2Gb)) ||
+	    ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_4G) &&
+	     !(phba->lmt & LMT_4Gb)) ||
+	    ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_8G) &&
+	     !(phba->lmt & LMT_8Gb)) ||
+	    ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_10G) &&
+	     !(phba->lmt & LMT_10Gb)) ||
+	    ((phba->cfg_link_speed == LPFC_USER_LINK_SPEED_16G) &&
+	     !(phba->lmt & LMT_16Gb))) {
+		/* Reset link speed to auto */
+		lpfc_printf_log(phba, KERN_ERR, LOG_LINK_EVENT,
+			"1302 Invalid speed for this board:%d "
+			"Reset link speed to auto.\n",
+			phba->cfg_link_speed);
+			phba->cfg_link_speed = LPFC_USER_LINK_SPEED_AUTO;
+	}
+	lpfc_init_link(phba, pmb, fc_topology, phba->cfg_link_speed);
 	pmb->mbox_cmpl = lpfc_sli_def_mbox_cmpl;
-	lpfc_set_loopback_flag(phba);
+	if (phba->sli_rev < LPFC_SLI_REV4)
+		lpfc_set_loopback_flag(phba);
 	rc = lpfc_sli_issue_mbox(phba, pmb, flag);
 	if ((rc != MBX_BUSY) && (rc != MBX_SUCCESS)) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
@@ -1437,7 +1440,10 @@ lpfc_handle_eratt_s4(struct lpfc_hba *phba)
 	uint32_t event_data;
 	struct Scsi_Host *shost;
 	uint32_t if_type;
-	struct lpfc_register portstat_reg;
+	struct lpfc_register portstat_reg = {0};
+	uint32_t reg_err1, reg_err2;
+	uint32_t uerrlo_reg, uemasklo_reg;
+	uint32_t pci_rd_rc1, pci_rd_rc2;
 	int rc;
 
 	/* If the pci channel is offline, ignore possible errors, since
@@ -1449,38 +1455,52 @@ lpfc_handle_eratt_s4(struct lpfc_hba *phba)
 	if (!phba->cfg_enable_hba_reset)
 		return;
 
-	/* Send an internal error event to mgmt application */
-	lpfc_board_errevt_to_mgmt(phba);
-
-	/* For now, the actual action for SLI4 device handling is not
-	 * specified yet, just treated it as adaptor hardware failure
-	 */
-	event_data = FC_REG_DUMP_EVENT;
-	shost = lpfc_shost_from_vport(vport);
-	fc_host_post_vendor_event(shost, fc_get_event_number(),
-				  sizeof(event_data), (char *) &event_data,
-				  SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
-
 	if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
 	switch (if_type) {
 	case LPFC_SLI_INTF_IF_TYPE_0:
+		pci_rd_rc1 = lpfc_readl(
+				phba->sli4_hba.u.if_type0.UERRLOregaddr,
+				&uerrlo_reg);
+		pci_rd_rc2 = lpfc_readl(
+				phba->sli4_hba.u.if_type0.UEMASKLOregaddr,
+				&uemasklo_reg);
+		/* consider PCI bus read error as pci_channel_offline */
+		if (pci_rd_rc1 == -EIO && pci_rd_rc2 == -EIO)
+			return;
 		lpfc_sli4_offline_eratt(phba);
 		break;
 	case LPFC_SLI_INTF_IF_TYPE_2:
-		portstat_reg.word0 =
-			readl(phba->sli4_hba.u.if_type2.STATUSregaddr);
-
+		pci_rd_rc1 = lpfc_readl(
+				phba->sli4_hba.u.if_type2.STATUSregaddr,
+				&portstat_reg.word0);
+		/* consider PCI bus read error as pci_channel_offline */
+		if (pci_rd_rc1 == -EIO)
+			return;
+		reg_err1 = readl(phba->sli4_hba.u.if_type2.ERR1regaddr);
+		reg_err2 = readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
 		if (bf_get(lpfc_sliport_status_oti, &portstat_reg)) {
 			/* TODO: Register for Overtemp async events. */
 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 				"2889 Port Overtemperature event, "
-				"taking port\n");
+				"taking port offline\n");
 			spin_lock_irq(&phba->hbalock);
 			phba->over_temp_state = HBA_OVER_TEMP;
 			spin_unlock_irq(&phba->hbalock);
 			lpfc_sli4_offline_eratt(phba);
-			return;
+			break;
 		}
+		if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
+		    reg_err2 == SLIPORT_ERR2_REG_FW_RESTART)
+			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+					"3143 Port Down: Firmware Restarted\n");
+		else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
+			 reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
+			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+					"3144 Port Down: Debug Dump\n");
+		else if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
+			 reg_err2 == SLIPORT_ERR2_REG_FUNC_PROVISON)
+			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+					"3145 Port Down: Provisioning\n");
 		/*
 		 * On error status condition, driver need to wait for port
 		 * ready before performing reset.
@@ -1489,14 +1509,19 @@ lpfc_handle_eratt_s4(struct lpfc_hba *phba)
 		if (!rc) {
 			/* need reset: attempt for port recovery */
 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
-					"2887 Port Error: Attempting "
-					"Port Recovery\n");
+					"2887 Reset Needed: Attempting Port "
+					"Recovery...\n");
 			lpfc_offline_prep(phba);
 			lpfc_offline(phba);
 			lpfc_sli_brdrestart(phba);
 			if (lpfc_online(phba) == 0) {
 				lpfc_unblock_mgmt_io(phba);
-				return;
+				/* don't report event on forced debug dump */
+				if (reg_err1 == SLIPORT_ERR1_REG_ERR_CODE_2 &&
+				    reg_err2 == SLIPORT_ERR2_REG_FORCED_DUMP)
+					return;
+				else
+					break;
 			}
 			/* fall through for not able to recover */
 		}
@@ -1506,6 +1531,16 @@ lpfc_handle_eratt_s4(struct lpfc_hba *phba)
 	default:
 		break;
 	}
+	lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+			"3123 Report dump event to upper layer\n");
+	/* Send an internal error event to mgmt application */
+	lpfc_board_errevt_to_mgmt(phba);
+
+	event_data = FC_REG_DUMP_EVENT;
+	shost = lpfc_shost_from_vport(vport);
+	fc_host_post_vendor_event(shost, fc_get_event_number(),
+				  sizeof(event_data), (char *) &event_data,
+				  SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_EMULEX);
 }
 
 /**
@@ -2674,6 +2709,32 @@ lpfc_offline(struct lpfc_hba *phba)
 }
 
 /**
+ * lpfc_scsi_buf_update - Update the scsi_buffers that are already allocated.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This routine goes through all the scsi buffers in the system and updates the
+ * Physical XRIs assigned to the SCSI buffer because these may change after any
+ * firmware reset
+ *
+ * Return codes
+ *   0 - successful (for now, it always returns 0)
+ **/
+int
+lpfc_scsi_buf_update(struct lpfc_hba *phba)
+{
+	struct lpfc_scsi_buf *sb, *sb_next;
+
+	spin_lock_irq(&phba->hbalock);
+	spin_lock(&phba->scsi_buf_list_lock);
+	list_for_each_entry_safe(sb, sb_next, &phba->lpfc_scsi_buf_list, list)
+		sb->cur_iocbq.sli4_xritag =
+			phba->sli4_hba.xri_ids[sb->cur_iocbq.sli4_lxritag];
+	spin_unlock(&phba->scsi_buf_list_lock);
+	spin_unlock_irq(&phba->hbalock);
+	return 0;
+}
+
+/**
  * lpfc_scsi_free - Free all the SCSI buffers and IOCBs from driver lists
  * @phba: pointer to lpfc hba data structure.
  *
@@ -5040,15 +5101,8 @@ lpfc_sli4_init_rpi_hdrs(struct lpfc_hba *phba)
 	struct lpfc_rpi_hdr *rpi_hdr;
 
 	INIT_LIST_HEAD(&phba->sli4_hba.lpfc_rpi_hdr_list);
-	/*
-	 * If the SLI4 port supports extents, posting the rpi header isn't
-	 * required.  Set the expected maximum count and let the actual value
-	 * get set when extents are fully allocated.
-	 */
-	if (!phba->sli4_hba.rpi_hdrs_in_use) {
-		phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
+	if (!phba->sli4_hba.rpi_hdrs_in_use)
 		return rc;
-	}
 	if (phba->sli4_hba.extents_in_use)
 		return -EIO;
 
@@ -5942,7 +5996,7 @@ lpfc_destroy_bootstrap_mbox(struct lpfc_hba *phba)
  * 	-ENOMEM - No available memory
  *      -EIO - The mailbox failed to complete successfully.
  **/
-static int
+int
 lpfc_sli4_read_config(struct lpfc_hba *phba)
 {
 	LPFC_MBOXQ_t *pmb;
@@ -5974,6 +6028,20 @@ lpfc_sli4_read_config(struct lpfc_hba *phba)
 		rc = -EIO;
 	} else {
 		rd_config = &pmb->u.mqe.un.rd_config;
+		if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
+			phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
+			phba->sli4_hba.lnk_info.lnk_tp =
+				bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
+			phba->sli4_hba.lnk_info.lnk_no =
+				bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
+			lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+					"3081 lnk_type:%d, lnk_numb:%d\n",
+					phba->sli4_hba.lnk_info.lnk_tp,
+					phba->sli4_hba.lnk_info.lnk_no);
+		} else
+			lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
+					"3082 Mailbox (x%x) returned ldv:x0\n",
+					bf_get(lpfc_mqe_command, &pmb->u.mqe));
 		phba->sli4_hba.extents_in_use =
 			bf_get(lpfc_mbx_rd_conf_extnts_inuse, rd_config);
 		phba->sli4_hba.max_cfg_param.max_xri =
@@ -6462,6 +6530,7 @@ out_free_fcp_wq:
 		phba->sli4_hba.fcp_wq[fcp_wqidx] = NULL;
 	}
 	kfree(phba->sli4_hba.fcp_wq);
+	phba->sli4_hba.fcp_wq = NULL;
 out_free_els_wq:
 	lpfc_sli4_queue_free(phba->sli4_hba.els_wq);
 	phba->sli4_hba.els_wq = NULL;
@@ -6474,6 +6543,7 @@ out_free_fcp_cq:
 		phba->sli4_hba.fcp_cq[fcp_cqidx] = NULL;
 	}
 	kfree(phba->sli4_hba.fcp_cq);
+	phba->sli4_hba.fcp_cq = NULL;
 out_free_els_cq:
 	lpfc_sli4_queue_free(phba->sli4_hba.els_cq);
 	phba->sli4_hba.els_cq = NULL;
@@ -6486,6 +6556,7 @@ out_free_fp_eq:
 		phba->sli4_hba.fp_eq[fcp_eqidx] = NULL;
 	}
 	kfree(phba->sli4_hba.fp_eq);
+	phba->sli4_hba.fp_eq = NULL;
 out_free_sp_eq:
 	lpfc_sli4_queue_free(phba->sli4_hba.sp_eq);
 	phba->sli4_hba.sp_eq = NULL;
@@ -6519,8 +6590,10 @@ lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
 	phba->sli4_hba.els_wq = NULL;
 
 	/* Release FCP work queue */
-	for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count; fcp_qidx++)
-		lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
+	if (phba->sli4_hba.fcp_wq != NULL)
+		for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_wq_count;
+		     fcp_qidx++)
+			lpfc_sli4_queue_free(phba->sli4_hba.fcp_wq[fcp_qidx]);
 	kfree(phba->sli4_hba.fcp_wq);
 	phba->sli4_hba.fcp_wq = NULL;
 
@@ -6540,15 +6613,18 @@ lpfc_sli4_queue_destroy(struct lpfc_hba *phba)
 
 	/* Release FCP response complete queue */
 	fcp_qidx = 0;
-	do
-		lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
-	while (++fcp_qidx < phba->cfg_fcp_eq_count);
+	if (phba->sli4_hba.fcp_cq != NULL)
+		do
+			lpfc_sli4_queue_free(phba->sli4_hba.fcp_cq[fcp_qidx]);
+		while (++fcp_qidx < phba->cfg_fcp_eq_count);
 	kfree(phba->sli4_hba.fcp_cq);
 	phba->sli4_hba.fcp_cq = NULL;
 
 	/* Release fast-path event queue */
-	for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
-		lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
+	if (phba->sli4_hba.fp_eq != NULL)
+		for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count;
+		     fcp_qidx++)
+			lpfc_sli4_queue_free(phba->sli4_hba.fp_eq[fcp_qidx]);
 	kfree(phba->sli4_hba.fp_eq);
 	phba->sli4_hba.fp_eq = NULL;
 
@@ -6601,11 +6677,18 @@ lpfc_sli4_queue_setup(struct lpfc_hba *phba)
 			phba->sli4_hba.sp_eq->queue_id);
 
 	/* Set up fast-path event queue */
+	if (phba->cfg_fcp_eq_count && !phba->sli4_hba.fp_eq) {
+		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+				"3147 Fast-path EQs not allocated\n");
+		rc = -ENOMEM;
+		goto out_destroy_sp_eq;
+	}
 	for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++) {
 		if (!phba->sli4_hba.fp_eq[fcp_eqidx]) {
 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 					"0522 Fast-path EQ (%d) not "
 					"allocated\n", fcp_eqidx);
+			rc = -ENOMEM;
 			goto out_destroy_fp_eq;
 		}
 		rc = lpfc_eq_create(phba, phba->sli4_hba.fp_eq[fcp_eqidx],
@@ -6630,6 +6713,7 @@ lpfc_sli4_queue_setup(struct lpfc_hba *phba)
 	if (!phba->sli4_hba.mbx_cq) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 				"0528 Mailbox CQ not allocated\n");
+		rc = -ENOMEM;
 		goto out_destroy_fp_eq;
 	}
 	rc = lpfc_cq_create(phba, phba->sli4_hba.mbx_cq, phba->sli4_hba.sp_eq,
@@ -6649,6 +6733,7 @@ lpfc_sli4_queue_setup(struct lpfc_hba *phba)
 	if (!phba->sli4_hba.els_cq) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 				"0530 ELS CQ not allocated\n");
+		rc = -ENOMEM;
 		goto out_destroy_mbx_cq;
 	}
 	rc = lpfc_cq_create(phba, phba->sli4_hba.els_cq, phba->sli4_hba.sp_eq,
@@ -6665,12 +6750,20 @@ lpfc_sli4_queue_setup(struct lpfc_hba *phba)
 			phba->sli4_hba.sp_eq->queue_id);
 
 	/* Set up fast-path FCP Response Complete Queue */
+	if (!phba->sli4_hba.fcp_cq) {
+		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+				"3148 Fast-path FCP CQ array not "
+				"allocated\n");
+		rc = -ENOMEM;
+		goto out_destroy_els_cq;
+	}
 	fcp_cqidx = 0;
 	do {
 		if (!phba->sli4_hba.fcp_cq[fcp_cqidx]) {
 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 					"0526 Fast-path FCP CQ (%d) not "
 					"allocated\n", fcp_cqidx);
+			rc = -ENOMEM;
 			goto out_destroy_fcp_cq;
 		}
 		if (phba->cfg_fcp_eq_count)
@@ -6709,6 +6802,7 @@ lpfc_sli4_queue_setup(struct lpfc_hba *phba)
 	if (!phba->sli4_hba.mbx_wq) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 				"0538 Slow-path MQ not allocated\n");
+		rc = -ENOMEM;
 		goto out_destroy_fcp_cq;
 	}
 	rc = lpfc_mq_create(phba, phba->sli4_hba.mbx_wq,
@@ -6728,6 +6822,7 @@ lpfc_sli4_queue_setup(struct lpfc_hba *phba)
 	if (!phba->sli4_hba.els_wq) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 				"0536 Slow-path ELS WQ not allocated\n");
+		rc = -ENOMEM;
 		goto out_destroy_mbx_wq;
 	}
 	rc = lpfc_wq_create(phba, phba->sli4_hba.els_wq,
@@ -6744,11 +6839,19 @@ lpfc_sli4_queue_setup(struct lpfc_hba *phba)
 			phba->sli4_hba.els_cq->queue_id);
 
 	/* Set up fast-path FCP Work Queue */
+	if (!phba->sli4_hba.fcp_wq) {
+		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+				"3149 Fast-path FCP WQ array not "
+				"allocated\n");
+		rc = -ENOMEM;
+		goto out_destroy_els_wq;
+	}
 	for (fcp_wqidx = 0; fcp_wqidx < phba->cfg_fcp_wq_count; fcp_wqidx++) {
 		if (!phba->sli4_hba.fcp_wq[fcp_wqidx]) {
 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 					"0534 Fast-path FCP WQ (%d) not "
 					"allocated\n", fcp_wqidx);
+			rc = -ENOMEM;
 			goto out_destroy_fcp_wq;
 		}
 		rc = lpfc_wq_create(phba, phba->sli4_hba.fcp_wq[fcp_wqidx],
@@ -6779,6 +6882,7 @@ lpfc_sli4_queue_setup(struct lpfc_hba *phba)
 	if (!phba->sli4_hba.hdr_rq || !phba->sli4_hba.dat_rq) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
 				"0540 Receive Queue not allocated\n");
+		rc = -ENOMEM;
 		goto out_destroy_fcp_wq;
 	}
 
@@ -6805,18 +6909,21 @@ lpfc_sli4_queue_setup(struct lpfc_hba *phba)
 out_destroy_fcp_wq:
 	for (--fcp_wqidx; fcp_wqidx >= 0; fcp_wqidx--)
 		lpfc_wq_destroy(phba, phba->sli4_hba.fcp_wq[fcp_wqidx]);
+out_destroy_els_wq:
 	lpfc_wq_destroy(phba, phba->sli4_hba.els_wq);
 out_destroy_mbx_wq:
 	lpfc_mq_destroy(phba, phba->sli4_hba.mbx_wq);
 out_destroy_fcp_cq:
 	for (--fcp_cqidx; fcp_cqidx >= 0; fcp_cqidx--)
 		lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_cqidx]);
+out_destroy_els_cq:
 	lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
 out_destroy_mbx_cq:
 	lpfc_cq_destroy(phba, phba->sli4_hba.mbx_cq);
 out_destroy_fp_eq:
 	for (--fcp_eqidx; fcp_eqidx >= 0; fcp_eqidx--)
 		lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_eqidx]);
+out_destroy_sp_eq:
 	lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
 out_error:
 	return rc;
@@ -6853,13 +6960,18 @@ lpfc_sli4_queue_unset(struct lpfc_hba *phba)
 	/* Unset ELS complete queue */
 	lpfc_cq_destroy(phba, phba->sli4_hba.els_cq);
 	/* Unset FCP response complete queue */
-	fcp_qidx = 0;
-	do {
-		lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
-	} while (++fcp_qidx < phba->cfg_fcp_eq_count);
+	if (phba->sli4_hba.fcp_cq) {
+		fcp_qidx = 0;
+		do {
+			lpfc_cq_destroy(phba, phba->sli4_hba.fcp_cq[fcp_qidx]);
+		} while (++fcp_qidx < phba->cfg_fcp_eq_count);
+	}
 	/* Unset fast-path event queue */
-	for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count; fcp_qidx++)
-		lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
+	if (phba->sli4_hba.fp_eq) {
+		for (fcp_qidx = 0; fcp_qidx < phba->cfg_fcp_eq_count;
+		     fcp_qidx++)
+			lpfc_eq_destroy(phba, phba->sli4_hba.fp_eq[fcp_qidx]);
+	}
 	/* Unset slow-path event queue */
 	lpfc_eq_destroy(phba, phba->sli4_hba.sp_eq);
 }
@@ -7398,22 +7510,25 @@ out:
 static void
 lpfc_sli4_pci_mem_unset(struct lpfc_hba *phba)
 {
-	struct pci_dev *pdev;
-
-	/* Obtain PCI device reference */
-	if (!phba->pcidev)
-		return;
-	else
-		pdev = phba->pcidev;
-
-	/* Free coherent DMA memory allocated */
-
-	/* Unmap I/O memory space */
-	iounmap(phba->sli4_hba.drbl_regs_memmap_p);
-	iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
-	iounmap(phba->sli4_hba.conf_regs_memmap_p);
+	uint32_t if_type;
+	if_type = bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf);
 
-	return;
+	switch (if_type) {
+	case LPFC_SLI_INTF_IF_TYPE_0:
+		iounmap(phba->sli4_hba.drbl_regs_memmap_p);
+		iounmap(phba->sli4_hba.ctrl_regs_memmap_p);
+		iounmap(phba->sli4_hba.conf_regs_memmap_p);
+		break;
+	case LPFC_SLI_INTF_IF_TYPE_2:
+		iounmap(phba->sli4_hba.conf_regs_memmap_p);
+		break;
+	case LPFC_SLI_INTF_IF_TYPE_1:
+	default:
+		dev_printk(KERN_ERR, &phba->pcidev->dev,
+			   "FATAL - unsupported SLI4 interface type - %d\n",
+			   if_type);
+		break;
+	}
 }
 
 /**
@@ -9198,12 +9313,15 @@ lpfc_pci_probe_one_s4(struct pci_dev *pdev, const struct pci_device_id *pid)
 	/* Perform post initialization setup */
 	lpfc_post_init_setup(phba);
 
-	/* check for firmware upgrade or downgrade */
-	snprintf(file_name, 16, "%s.grp", phba->ModelName);
-	error = request_firmware(&fw, file_name, &phba->pcidev->dev);
-	if (!error) {
-		lpfc_write_firmware(phba, fw);
-		release_firmware(fw);
+	/* check for firmware upgrade or downgrade (if_type 2 only) */
+	if (bf_get(lpfc_sli_intf_if_type, &phba->sli4_hba.sli_intf) ==
+	    LPFC_SLI_INTF_IF_TYPE_2) {
+		snprintf(file_name, 16, "%s.grp", phba->ModelName);
+		error = request_firmware(&fw, file_name, &phba->pcidev->dev);
+		if (!error) {
+			lpfc_write_firmware(phba, fw);
+			release_firmware(fw);
+		}
 	}
 
 	/* Check if there are static vports to be created. */
diff --git a/drivers/scsi/lpfc/lpfc_mbox.c b/drivers/scsi/lpfc/lpfc_mbox.c
index 2ebc7d2540c0..20336f09fb3c 100644
--- a/drivers/scsi/lpfc/lpfc_mbox.c
+++ b/drivers/scsi/lpfc/lpfc_mbox.c
@@ -1293,6 +1293,10 @@ lpfc_config_port(struct lpfc_hba *phba, LPFC_MBOXQ_t *pmb)
 		phba->sli_rev = LPFC_SLI_REV2;
 	mb->un.varCfgPort.sli_mode = phba->sli_rev;
 
+	/* If this is an SLI3 port, configure async status notification. */
+	if (phba->sli_rev == LPFC_SLI_REV3)
+		mb->un.varCfgPort.casabt = 1;
+
 	/* Now setup pcb */
 	phba->pcb->type = TYPE_NATIVE_SLI2;
 	phba->pcb->feature = FEATURE_INITIAL_SLI2;
@@ -2129,6 +2133,14 @@ lpfc_reg_vfi(struct lpfcMboxq *mbox, struct lpfc_vport *vport, dma_addr_t phys)
 	reg_vfi->bde.tus.f.bdeSize = sizeof(vport->fc_sparam);
 	reg_vfi->bde.tus.f.bdeFlags = BUFF_TYPE_BDE_64;
 	bf_set(lpfc_reg_vfi_nport_id, reg_vfi, vport->fc_myDID);
+	lpfc_printf_vlog(vport, KERN_INFO, LOG_MBOX,
+			"3134 Register VFI, mydid:x%x, fcfi:%d, "
+			" vfi:%d, vpi:%d, fc_pname:%x%x\n",
+			vport->fc_myDID,
+			vport->phba->fcf.fcfi,
+			vport->phba->sli4_hba.vfi_ids[vport->vfi],
+			vport->phba->vpi_ids[vport->vpi],
+			reg_vfi->wwn[0], reg_vfi->wwn[1]);
 }
 
 /**
@@ -2175,16 +2187,15 @@ lpfc_unreg_vfi(struct lpfcMboxq *mbox, struct lpfc_vport *vport)
 }
 
 /**
- * lpfc_dump_fcoe_param - Dump config region 23 to get FCoe parameters.
+ * lpfc_sli4_dump_cfg_rg23 - Dump sli4 port config region 23
  * @phba: pointer to the hba structure containing.
  * @mbox: pointer to lpfc mbox command to initialize.
  *
- * This function create a SLI4 dump mailbox command to dump FCoE
- * parameters stored in region 23.
+ * This function create a SLI4 dump mailbox command to dump configure
+ * region 23.
  **/
 int
-lpfc_dump_fcoe_param(struct lpfc_hba *phba,
-		struct lpfcMboxq *mbox)
+lpfc_sli4_dump_cfg_rg23(struct lpfc_hba *phba, struct lpfcMboxq *mbox)
 {
 	struct lpfc_dmabuf *mp = NULL;
 	MAILBOX_t *mb;
@@ -2198,9 +2209,9 @@ lpfc_dump_fcoe_param(struct lpfc_hba *phba,
 
 	if (!mp || !mp->virt) {
 		kfree(mp);
-		/* dump_fcoe_param failed to allocate memory */
+		/* dump config region 23 failed to allocate memory */
 		lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX,
-			"2569 lpfc_dump_fcoe_param: memory"
+			"2569 lpfc dump config region 23: memory"
 			" allocation failed\n");
 		return 1;
 	}
diff --git a/drivers/scsi/lpfc/lpfc_mem.c b/drivers/scsi/lpfc/lpfc_mem.c
index 10d5b5e41499..ade763d3930a 100644
--- a/drivers/scsi/lpfc/lpfc_mem.c
+++ b/drivers/scsi/lpfc/lpfc_mem.c
@@ -389,7 +389,7 @@ lpfc_els_hbq_alloc(struct lpfc_hba *phba)
 {
 	struct hbq_dmabuf *hbqbp;
 
-	hbqbp = kmalloc(sizeof(struct hbq_dmabuf), GFP_KERNEL);
+	hbqbp = kzalloc(sizeof(struct hbq_dmabuf), GFP_KERNEL);
 	if (!hbqbp)
 		return NULL;
 
@@ -441,7 +441,7 @@ lpfc_sli4_rb_alloc(struct lpfc_hba *phba)
 {
 	struct hbq_dmabuf *dma_buf;
 
-	dma_buf = kmalloc(sizeof(struct hbq_dmabuf), GFP_KERNEL);
+	dma_buf = kzalloc(sizeof(struct hbq_dmabuf), GFP_KERNEL);
 	if (!dma_buf)
 		return NULL;
 
diff --git a/drivers/scsi/lpfc/lpfc_nportdisc.c b/drivers/scsi/lpfc/lpfc_nportdisc.c
index 2ddd02f7c603..e8bb00559943 100644
--- a/drivers/scsi/lpfc/lpfc_nportdisc.c
+++ b/drivers/scsi/lpfc/lpfc_nportdisc.c
@@ -783,6 +783,14 @@ lpfc_device_rm_unused_node(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 }
 
 static uint32_t
+lpfc_device_recov_unused_node(struct lpfc_vport *vport,
+			struct lpfc_nodelist *ndlp,
+			   void *arg, uint32_t evt)
+{
+	return ndlp->nlp_state;
+}
+
+static uint32_t
 lpfc_rcv_plogi_plogi_issue(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp,
 			   void *arg, uint32_t evt)
 {
@@ -2147,7 +2155,7 @@ static uint32_t (*lpfc_disc_action[NLP_STE_MAX_STATE * NLP_EVT_MAX_EVENT])
 	lpfc_disc_illegal,		/* CMPL_ADISC      */
 	lpfc_disc_illegal,		/* CMPL_REG_LOGIN  */
 	lpfc_device_rm_unused_node,	/* DEVICE_RM       */
-	lpfc_disc_illegal,		/* DEVICE_RECOVERY */
+	lpfc_device_recov_unused_node,	/* DEVICE_RECOVERY */
 
 	lpfc_rcv_plogi_plogi_issue,	/* RCV_PLOGI   PLOGI_ISSUE    */
 	lpfc_rcv_prli_plogi_issue,	/* RCV_PRLI        */
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index 2e1e54e5c3ae..c60f5d0b3869 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -681,8 +681,10 @@ lpfc_sli4_fcp_xri_aborted(struct lpfc_hba *phba,
 
 			rrq_empty = list_empty(&phba->active_rrq_list);
 			spin_unlock_irqrestore(&phba->hbalock, iflag);
-			if (ndlp)
+			if (ndlp) {
 				lpfc_set_rrq_active(phba, ndlp, xri, rxid, 1);
+				lpfc_sli4_abts_err_handler(phba, ndlp, axri);
+			}
 			lpfc_release_scsi_buf_s4(phba, psb);
 			if (rrq_empty)
 				lpfc_worker_wake_up(phba);
@@ -2911,8 +2913,8 @@ lpfc_scsi_prep_cmnd(struct lpfc_vport *vport, struct lpfc_scsi_buf *lpfc_cmd,
 	int_to_scsilun(lpfc_cmd->pCmd->device->lun,
 			&lpfc_cmd->fcp_cmnd->fcp_lun);
 
-	memcpy(&fcp_cmnd->fcpCdb[0], scsi_cmnd->cmnd, 16);
-
+	memset(&fcp_cmnd->fcpCdb[0], 0, LPFC_FCP_CDB_LEN);
+	memcpy(&fcp_cmnd->fcpCdb[0], scsi_cmnd->cmnd, scsi_cmnd->cmd_len);
 	if (scsi_populate_tag_msg(scsi_cmnd, tag)) {
 		switch (tag[0]) {
 		case HEAD_OF_QUEUE_TAG:
@@ -3236,6 +3238,15 @@ lpfc_queuecommand_lck(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *))
 		cmnd->result = err;
 		goto out_fail_command;
 	}
+	/*
+	 * Do not let the mid-layer retry I/O too fast. If an I/O is retried
+	 * without waiting a bit then indicate that the device is busy.
+	 */
+	if (cmnd->retries &&
+	    time_before(jiffies, (cmnd->jiffies_at_alloc +
+				  msecs_to_jiffies(LPFC_RETRY_PAUSE *
+						   cmnd->retries))))
+		return SCSI_MLQUEUE_DEVICE_BUSY;
 	ndlp = rdata->pnode;
 
 	if ((scsi_get_prot_op(cmnd) != SCSI_PROT_NORMAL) &&
diff --git a/drivers/scsi/lpfc/lpfc_scsi.h b/drivers/scsi/lpfc/lpfc_scsi.h
index ce645b20a6ad..9075a08cf781 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.h
+++ b/drivers/scsi/lpfc/lpfc_scsi.h
@@ -21,6 +21,7 @@
 #include <asm/byteorder.h>
 
 struct lpfc_hba;
+#define LPFC_FCP_CDB_LEN 16
 
 #define list_remove_head(list, entry, type, member)		\
 	do {							\
@@ -102,7 +103,7 @@ struct fcp_cmnd {
 #define  WRITE_DATA      0x01	/* Bit 0 */
 #define  READ_DATA       0x02	/* Bit 1 */
 
-	uint8_t fcpCdb[16];	/* SRB cdb field is copied here */
+	uint8_t fcpCdb[LPFC_FCP_CDB_LEN]; /* SRB cdb field is copied here */
 	uint32_t fcpDl;		/* Total transfer length */
 
 };
@@ -153,5 +154,5 @@ struct lpfc_scsi_buf {
 
 #define LPFC_SCSI_DMA_EXT_SIZE 264
 #define LPFC_BPL_SIZE          1024
-
+#define LPFC_RETRY_PAUSE       300
 #define MDAC_DIRECT_CMD                  0x22
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 4d4104f38c98..23a27592388c 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -89,15 +89,20 @@ lpfc_get_iocb_from_iocbq(struct lpfc_iocbq *iocbq)
 static uint32_t
 lpfc_sli4_wq_put(struct lpfc_queue *q, union lpfc_wqe *wqe)
 {
-	union lpfc_wqe *temp_wqe = q->qe[q->host_index].wqe;
+	union lpfc_wqe *temp_wqe;
 	struct lpfc_register doorbell;
 	uint32_t host_index;
 
+	/* sanity check on queue memory */
+	if (unlikely(!q))
+		return -ENOMEM;
+	temp_wqe = q->qe[q->host_index].wqe;
+
 	/* If the host has not yet processed the next entry then we are done */
 	if (((q->host_index + 1) % q->entry_count) == q->hba_index)
 		return -ENOMEM;
 	/* set consumption flag every once in a while */
-	if (!((q->host_index + 1) % LPFC_RELEASE_NOTIFICATION_INTERVAL))
+	if (!((q->host_index + 1) % q->entry_repost))
 		bf_set(wqe_wqec, &wqe->generic.wqe_com, 1);
 	if (q->phba->sli3_options & LPFC_SLI4_PHWQ_ENABLED)
 		bf_set(wqe_wqid, &wqe->generic.wqe_com, q->queue_id);
@@ -134,6 +139,10 @@ lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index)
 {
 	uint32_t released = 0;
 
+	/* sanity check on queue memory */
+	if (unlikely(!q))
+		return 0;
+
 	if (q->hba_index == index)
 		return 0;
 	do {
@@ -158,10 +167,15 @@ lpfc_sli4_wq_release(struct lpfc_queue *q, uint32_t index)
 static uint32_t
 lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe)
 {
-	struct lpfc_mqe *temp_mqe = q->qe[q->host_index].mqe;
+	struct lpfc_mqe *temp_mqe;
 	struct lpfc_register doorbell;
 	uint32_t host_index;
 
+	/* sanity check on queue memory */
+	if (unlikely(!q))
+		return -ENOMEM;
+	temp_mqe = q->qe[q->host_index].mqe;
+
 	/* If the host has not yet processed the next entry then we are done */
 	if (((q->host_index + 1) % q->entry_count) == q->hba_index)
 		return -ENOMEM;
@@ -195,6 +209,10 @@ lpfc_sli4_mq_put(struct lpfc_queue *q, struct lpfc_mqe *mqe)
 static uint32_t
 lpfc_sli4_mq_release(struct lpfc_queue *q)
 {
+	/* sanity check on queue memory */
+	if (unlikely(!q))
+		return 0;
+
 	/* Clear the mailbox pointer for completion */
 	q->phba->mbox = NULL;
 	q->hba_index = ((q->hba_index + 1) % q->entry_count);
@@ -213,7 +231,12 @@ lpfc_sli4_mq_release(struct lpfc_queue *q)
 static struct lpfc_eqe *
 lpfc_sli4_eq_get(struct lpfc_queue *q)
 {
-	struct lpfc_eqe *eqe = q->qe[q->hba_index].eqe;
+	struct lpfc_eqe *eqe;
+
+	/* sanity check on queue memory */
+	if (unlikely(!q))
+		return NULL;
+	eqe = q->qe[q->hba_index].eqe;
 
 	/* If the next EQE is not valid then we are done */
 	if (!bf_get_le32(lpfc_eqe_valid, eqe))
@@ -248,6 +271,10 @@ lpfc_sli4_eq_release(struct lpfc_queue *q, bool arm)
 	struct lpfc_eqe *temp_eqe;
 	struct lpfc_register doorbell;
 
+	/* sanity check on queue memory */
+	if (unlikely(!q))
+		return 0;
+
 	/* while there are valid entries */
 	while (q->hba_index != q->host_index) {
 		temp_eqe = q->qe[q->host_index].eqe;
@@ -288,6 +315,10 @@ lpfc_sli4_cq_get(struct lpfc_queue *q)
 {
 	struct lpfc_cqe *cqe;
 
+	/* sanity check on queue memory */
+	if (unlikely(!q))
+		return NULL;
+
 	/* If the next CQE is not valid then we are done */
 	if (!bf_get_le32(lpfc_cqe_valid, q->qe[q->hba_index].cqe))
 		return NULL;
@@ -322,6 +353,9 @@ lpfc_sli4_cq_release(struct lpfc_queue *q, bool arm)
 	struct lpfc_cqe *temp_qe;
 	struct lpfc_register doorbell;
 
+	/* sanity check on queue memory */
+	if (unlikely(!q))
+		return 0;
 	/* while there are valid entries */
 	while (q->hba_index != q->host_index) {
 		temp_qe = q->qe[q->host_index].cqe;
@@ -359,11 +393,17 @@ static int
 lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq,
 		 struct lpfc_rqe *hrqe, struct lpfc_rqe *drqe)
 {
-	struct lpfc_rqe *temp_hrqe = hq->qe[hq->host_index].rqe;
-	struct lpfc_rqe *temp_drqe = dq->qe[dq->host_index].rqe;
+	struct lpfc_rqe *temp_hrqe;
+	struct lpfc_rqe *temp_drqe;
 	struct lpfc_register doorbell;
 	int put_index = hq->host_index;
 
+	/* sanity check on queue memory */
+	if (unlikely(!hq) || unlikely(!dq))
+		return -ENOMEM;
+	temp_hrqe = hq->qe[hq->host_index].rqe;
+	temp_drqe = dq->qe[dq->host_index].rqe;
+
 	if (hq->type != LPFC_HRQ || dq->type != LPFC_DRQ)
 		return -EINVAL;
 	if (hq->host_index != dq->host_index)
@@ -402,6 +442,10 @@ lpfc_sli4_rq_put(struct lpfc_queue *hq, struct lpfc_queue *dq,
 static uint32_t
 lpfc_sli4_rq_release(struct lpfc_queue *hq, struct lpfc_queue *dq)
 {
+	/* sanity check on queue memory */
+	if (unlikely(!hq) || unlikely(!dq))
+		return 0;
+
 	if ((hq->type != LPFC_HRQ) || (dq->type != LPFC_DRQ))
 		return 0;
 	hq->hba_index = ((hq->hba_index + 1) % hq->entry_count);
@@ -3575,8 +3619,8 @@ lpfc_sli_brdready(struct lpfc_hba *phba, uint32_t mask)
  * lpfc_reset_barrier - Make HBA ready for HBA reset
  * @phba: Pointer to HBA context object.
  *
- * This function is called before resetting an HBA. This
- * function requests HBA to quiesce DMAs before a reset.
+ * This function is called before resetting an HBA. This function is called
+ * with hbalock held and requests HBA to quiesce DMAs before a reset.
  **/
 void lpfc_reset_barrier(struct lpfc_hba *phba)
 {
@@ -3851,7 +3895,6 @@ lpfc_sli4_brdreset(struct lpfc_hba *phba)
 {
 	struct lpfc_sli *psli = &phba->sli;
 	uint16_t cfg_value;
-	uint8_t qindx;
 
 	/* Reset HBA */
 	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
@@ -3867,19 +3910,6 @@ lpfc_sli4_brdreset(struct lpfc_hba *phba)
 	spin_lock_irq(&phba->hbalock);
 	psli->sli_flag &= ~(LPFC_PROCESS_LA);
 	phba->fcf.fcf_flag = 0;
-	/* Clean up the child queue list for the CQs */
-	list_del_init(&phba->sli4_hba.mbx_wq->list);
-	list_del_init(&phba->sli4_hba.els_wq->list);
-	list_del_init(&phba->sli4_hba.hdr_rq->list);
-	list_del_init(&phba->sli4_hba.dat_rq->list);
-	list_del_init(&phba->sli4_hba.mbx_cq->list);
-	list_del_init(&phba->sli4_hba.els_cq->list);
-	for (qindx = 0; qindx < phba->cfg_fcp_wq_count; qindx++)
-		list_del_init(&phba->sli4_hba.fcp_wq[qindx]->list);
-	qindx = 0;
-	do
-		list_del_init(&phba->sli4_hba.fcp_cq[qindx]->list);
-	while (++qindx < phba->cfg_fcp_eq_count);
 	spin_unlock_irq(&phba->hbalock);
 
 	/* Now physically reset the device */
@@ -3892,6 +3922,7 @@ lpfc_sli4_brdreset(struct lpfc_hba *phba)
 			      ~(PCI_COMMAND_PARITY | PCI_COMMAND_SERR)));
 
 	/* Perform FCoE PCI function reset */
+	lpfc_sli4_queue_destroy(phba);
 	lpfc_pci_function_reset(phba);
 
 	/* Restore PCI cmd register */
@@ -4339,6 +4370,11 @@ lpfc_sli_config_port(struct lpfc_hba *phba, int sli_mode)
 			phba->sli.sli_flag &= ~LPFC_SLI_ASYNC_MBX_BLK;
 			spin_unlock_irq(&phba->hbalock);
 			done = 1;
+
+			if ((pmb->u.mb.un.varCfgPort.casabt == 1) &&
+			    (pmb->u.mb.un.varCfgPort.gasabt == 0))
+				lpfc_printf_log(phba, KERN_WARNING, LOG_INIT,
+					"3110 Port did not grant ASABT\n");
 		}
 	}
 	if (!done) {
@@ -4551,9 +4587,9 @@ lpfc_sli_hba_setup_error:
  * data structure.
  **/
 static int
-lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba,
-		LPFC_MBOXQ_t *mboxq)
+lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba)
 {
+	LPFC_MBOXQ_t *mboxq;
 	struct lpfc_dmabuf *mp;
 	struct lpfc_mqe *mqe;
 	uint32_t data_length;
@@ -4565,10 +4601,16 @@ lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba,
 	phba->fc_map[1] = LPFC_FCOE_FCF_MAP1;
 	phba->fc_map[2] = LPFC_FCOE_FCF_MAP2;
 
-	mqe = &mboxq->u.mqe;
-	if (lpfc_dump_fcoe_param(phba, mboxq))
+	mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+	if (!mboxq)
 		return -ENOMEM;
 
+	mqe = &mboxq->u.mqe;
+	if (lpfc_sli4_dump_cfg_rg23(phba, mboxq)) {
+		rc = -ENOMEM;
+		goto out_free_mboxq;
+	}
+
 	mp = (struct lpfc_dmabuf *) mboxq->context1;
 	rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
 
@@ -4596,19 +4638,25 @@ lpfc_sli4_read_fcoe_params(struct lpfc_hba *phba,
 	if (rc) {
 		lpfc_mbuf_free(phba, mp->virt, mp->phys);
 		kfree(mp);
-		return -EIO;
+		rc = -EIO;
+		goto out_free_mboxq;
 	}
 	data_length = mqe->un.mb_words[5];
 	if (data_length > DMP_RGN23_SIZE) {
 		lpfc_mbuf_free(phba, mp->virt, mp->phys);
 		kfree(mp);
-		return -EIO;
+		rc = -EIO;
+		goto out_free_mboxq;
 	}
 
 	lpfc_parse_fcoe_conf(phba, mp->virt, data_length);
 	lpfc_mbuf_free(phba, mp->virt, mp->phys);
 	kfree(mp);
-	return 0;
+	rc = 0;
+
+out_free_mboxq:
+	mempool_free(mboxq, phba->mbox_mem_pool);
+	return rc;
 }
 
 /**
@@ -4706,7 +4754,6 @@ static int
 lpfc_sli4_retrieve_pport_name(struct lpfc_hba *phba)
 {
 	LPFC_MBOXQ_t *mboxq;
-	struct lpfc_mbx_read_config *rd_config;
 	struct lpfc_mbx_get_cntl_attributes *mbx_cntl_attr;
 	struct lpfc_controller_attribute *cntl_attr;
 	struct lpfc_mbx_get_port_name *get_port_name;
@@ -4724,33 +4771,11 @@ lpfc_sli4_retrieve_pport_name(struct lpfc_hba *phba)
 	mboxq = (LPFC_MBOXQ_t *)mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 	if (!mboxq)
 		return -ENOMEM;
-
 	/* obtain link type and link number via READ_CONFIG */
-	lpfc_read_config(phba, mboxq);
-	rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
-	if (rc == MBX_SUCCESS) {
-		rd_config = &mboxq->u.mqe.un.rd_config;
-		if (bf_get(lpfc_mbx_rd_conf_lnk_ldv, rd_config)) {
-			phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_VAL;
-			phba->sli4_hba.lnk_info.lnk_tp =
-				bf_get(lpfc_mbx_rd_conf_lnk_type, rd_config);
-			phba->sli4_hba.lnk_info.lnk_no =
-				bf_get(lpfc_mbx_rd_conf_lnk_numb, rd_config);
-			lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
-					"3081 lnk_type:%d, lnk_numb:%d\n",
-					phba->sli4_hba.lnk_info.lnk_tp,
-					phba->sli4_hba.lnk_info.lnk_no);
-			goto retrieve_ppname;
-		} else
-			lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
-					"3082 Mailbox (x%x) returned ldv:x0\n",
-					bf_get(lpfc_mqe_command,
-					       &mboxq->u.mqe));
-	} else
-		lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
-				"3083 Mailbox (x%x) failed, status:x%x\n",
-				bf_get(lpfc_mqe_command, &mboxq->u.mqe),
-				bf_get(lpfc_mqe_status, &mboxq->u.mqe));
+	phba->sli4_hba.lnk_info.lnk_dv = LPFC_LNK_DAT_INVAL;
+	lpfc_sli4_read_config(phba);
+	if (phba->sli4_hba.lnk_info.lnk_dv == LPFC_LNK_DAT_VAL)
+		goto retrieve_ppname;
 
 	/* obtain link type and link number via COMMON_GET_CNTL_ATTRIBUTES */
 	reqlen = sizeof(struct lpfc_mbx_get_cntl_attributes);
@@ -4875,14 +4900,19 @@ lpfc_sli4_arm_cqeq_intr(struct lpfc_hba *phba)
 	lpfc_sli4_cq_release(phba->sli4_hba.mbx_cq, LPFC_QUEUE_REARM);
 	lpfc_sli4_cq_release(phba->sli4_hba.els_cq, LPFC_QUEUE_REARM);
 	fcp_eqidx = 0;
-	do
-		lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[fcp_eqidx],
-				     LPFC_QUEUE_REARM);
-	while (++fcp_eqidx < phba->cfg_fcp_eq_count);
+	if (phba->sli4_hba.fcp_cq) {
+		do
+			lpfc_sli4_cq_release(phba->sli4_hba.fcp_cq[fcp_eqidx],
+					     LPFC_QUEUE_REARM);
+		while (++fcp_eqidx < phba->cfg_fcp_eq_count);
+	}
 	lpfc_sli4_eq_release(phba->sli4_hba.sp_eq, LPFC_QUEUE_REARM);
-	for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count; fcp_eqidx++)
-		lpfc_sli4_eq_release(phba->sli4_hba.fp_eq[fcp_eqidx],
-				     LPFC_QUEUE_REARM);
+	if (phba->sli4_hba.fp_eq) {
+		for (fcp_eqidx = 0; fcp_eqidx < phba->cfg_fcp_eq_count;
+		     fcp_eqidx++)
+			lpfc_sli4_eq_release(phba->sli4_hba.fp_eq[fcp_eqidx],
+					     LPFC_QUEUE_REARM);
+	}
 }
 
 /**
@@ -5457,6 +5487,8 @@ lpfc_sli4_alloc_resource_identifiers(struct lpfc_hba *phba)
 	uint16_t count, base;
 	unsigned long longs;
 
+	if (!phba->sli4_hba.rpi_hdrs_in_use)
+		phba->sli4_hba.next_rpi = phba->sli4_hba.max_cfg_param.max_rpi;
 	if (phba->sli4_hba.extents_in_use) {
 		/*
 		 * The port supports resource extents. The XRI, VPI, VFI, RPI
@@ -5538,9 +5570,10 @@ lpfc_sli4_alloc_resource_identifiers(struct lpfc_hba *phba)
 		 * need any action - just exit.
 		 */
 		if (bf_get(lpfc_idx_rsrc_rdy, &phba->sli4_hba.sli4_flags) ==
-		    LPFC_IDX_RSRC_RDY)
-			return 0;
-
+		    LPFC_IDX_RSRC_RDY) {
+			lpfc_sli4_dealloc_resource_identifiers(phba);
+			lpfc_sli4_remove_rpis(phba);
+		}
 		/* RPIs. */
 		count = phba->sli4_hba.max_cfg_param.max_rpi;
 		base = phba->sli4_hba.max_cfg_param.rpi_base;
@@ -5880,14 +5913,6 @@ lpfc_sli4_hba_setup(struct lpfc_hba *phba)
 	if (!mboxq)
 		return -ENOMEM;
 
-	/*
-	 * Continue initialization with default values even if driver failed
-	 * to read FCoE param config regions
-	 */
-	if (lpfc_sli4_read_fcoe_params(phba, mboxq))
-		lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_INIT,
-			"2570 Failed to read FCoE parameters\n");
-
 	/* Issue READ_REV to collect vpd and FW information. */
 	vpd_size = SLI4_PAGE_SIZE;
 	vpd = kzalloc(vpd_size, GFP_KERNEL);
@@ -5925,6 +5950,16 @@ lpfc_sli4_hba_setup(struct lpfc_hba *phba)
 	}
 
 	/*
+	 * Continue initialization with default values even if driver failed
+	 * to read FCoE param config regions, only read parameters if the
+	 * board is FCoE
+	 */
+	if (phba->hba_flag & HBA_FCOE_MODE &&
+	    lpfc_sli4_read_fcoe_params(phba))
+		lpfc_printf_log(phba, KERN_WARNING, LOG_MBOX | LOG_INIT,
+			"2570 Failed to read FCoE parameters\n");
+
+	/*
 	 * Retrieve sli4 device physical port name, failure of doing it
 	 * is considered as non-fatal.
 	 */
@@ -6044,6 +6079,8 @@ lpfc_sli4_hba_setup(struct lpfc_hba *phba)
 				"rc = x%x\n", rc);
 		goto out_free_mbox;
 	}
+	/* update physical xri mappings in the scsi buffers */
+	lpfc_scsi_buf_update(phba);
 
 	/* Read the port's service parameters. */
 	rc = lpfc_read_sparam(phba, mboxq, vport->vpi);
@@ -6205,7 +6242,11 @@ lpfc_sli4_hba_setup(struct lpfc_hba *phba)
 		rc = 0;
 		phba->fcf.fcfi = bf_get(lpfc_reg_fcfi_fcfi,
 					&mboxq->u.mqe.un.reg_fcfi);
+
+		/* Check if the port is configured to be disabled */
+		lpfc_sli_read_link_ste(phba);
 	}
+
 	/*
 	 * The port is ready, set the host's link state to LINK_DOWN
 	 * in preparation for link interrupts.
@@ -6213,10 +6254,25 @@ lpfc_sli4_hba_setup(struct lpfc_hba *phba)
 	spin_lock_irq(&phba->hbalock);
 	phba->link_state = LPFC_LINK_DOWN;
 	spin_unlock_irq(&phba->hbalock);
-	if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
-		rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
-		if (rc)
+	if (!(phba->hba_flag & HBA_FCOE_MODE) &&
+	    (phba->hba_flag & LINK_DISABLED)) {
+		lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
+				"3103 Adapter Link is disabled.\n");
+		lpfc_down_link(phba, mboxq);
+		rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
+		if (rc != MBX_SUCCESS) {
+			lpfc_printf_log(phba, KERN_ERR, LOG_INIT | LOG_SLI,
+					"3104 Adapter failed to issue "
+					"DOWN_LINK mbox cmd, rc:x%x\n", rc);
 			goto out_unset_queue;
+		}
+	} else if (phba->cfg_suppress_link_up == LPFC_INITIALIZE_LINK) {
+		/* don't perform init_link on SLI4 FC port loopback test */
+		if (!(phba->link_flag & LS_LOOPBACK_MODE)) {
+			rc = phba->lpfc_hba_init_link(phba, MBX_NOWAIT);
+			if (rc)
+				goto out_unset_queue;
+		}
 	}
 	mempool_free(mboxq, phba->mbox_mem_pool);
 	return rc;
@@ -7487,6 +7543,7 @@ lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
 	struct ulp_bde64 *bpl = NULL;
 	struct ulp_bde64 bde;
 	struct sli4_sge *sgl  = NULL;
+	struct lpfc_dmabuf *dmabuf;
 	IOCB_t *icmd;
 	int numBdes = 0;
 	int i = 0;
@@ -7505,9 +7562,12 @@ lpfc_sli4_bpl2sgl(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
 		 * have not been byteswapped yet so there is no
 		 * need to swap them back.
 		 */
-		bpl  = (struct ulp_bde64 *)
-			((struct lpfc_dmabuf *)piocbq->context3)->virt;
+		if (piocbq->context3)
+			dmabuf = (struct lpfc_dmabuf *)piocbq->context3;
+		else
+			return xritag;
 
+		bpl  = (struct ulp_bde64 *)dmabuf->virt;
 		if (!bpl)
 			return xritag;
 
@@ -7616,6 +7676,8 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
 	int numBdes, i;
 	struct ulp_bde64 bde;
 	struct lpfc_nodelist *ndlp;
+	uint32_t *pcmd;
+	uint32_t if_type;
 
 	fip = phba->hba_flag & HBA_FIP_SUPPORT;
 	/* The fcp commands will set command type */
@@ -7669,6 +7731,7 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
 				iocbq->iocb.ulpCommand);
 			return IOCB_ERROR;
 		}
+
 		wqe->els_req.payload_len = xmit_len;
 		/* Els_reguest64 has a TMO */
 		bf_set(wqe_tmo, &wqe->els_req.wqe_com,
@@ -7683,9 +7746,28 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
 		bf_set(wqe_ct, &wqe->els_req.wqe_com, ct);
 		bf_set(wqe_pu, &wqe->els_req.wqe_com, 0);
 		/* CCP CCPE PV PRI in word10 were set in the memcpy */
-		if (command_type == ELS_COMMAND_FIP) {
+		if (command_type == ELS_COMMAND_FIP)
 			els_id = ((iocbq->iocb_flag & LPFC_FIP_ELS_ID_MASK)
 					>> LPFC_FIP_ELS_ID_SHIFT);
+		pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
+					iocbq->context2)->virt);
+		if_type = bf_get(lpfc_sli_intf_if_type,
+					&phba->sli4_hba.sli_intf);
+		if (if_type == LPFC_SLI_INTF_IF_TYPE_2) {
+			if (pcmd && (*pcmd == ELS_CMD_FLOGI ||
+				*pcmd == ELS_CMD_SCR ||
+				*pcmd == ELS_CMD_PLOGI)) {
+				bf_set(els_req64_sp, &wqe->els_req, 1);
+				bf_set(els_req64_sid, &wqe->els_req,
+					iocbq->vport->fc_myDID);
+				bf_set(wqe_ct, &wqe->els_req.wqe_com, 1);
+				bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
+					phba->vpi_ids[phba->pport->vpi]);
+			} else if (iocbq->context1) {
+				bf_set(wqe_ct, &wqe->els_req.wqe_com, 0);
+				bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
+					phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
+			}
 		}
 		bf_set(wqe_temp_rpi, &wqe->els_req.wqe_com,
 		       phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
@@ -7704,6 +7786,8 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
 		/* The entire sequence is transmitted for this IOCB */
 		xmit_len = total_len;
 		cmnd = CMD_XMIT_SEQUENCE64_CR;
+		if (phba->link_flag & LS_LOOPBACK_MODE)
+			bf_set(wqe_xo, &wqe->xmit_sequence.wge_ctl, 1);
 	case CMD_XMIT_SEQUENCE64_CR:
 		/* word3 iocb=io_tag32 wqe=reserved */
 		wqe->xmit_sequence.rsvd3 = 0;
@@ -7846,6 +7930,16 @@ lpfc_sli4_iocb2wqe(struct lpfc_hba *phba, struct lpfc_iocbq *iocbq,
 		bf_set(wqe_ebde_cnt, &wqe->xmit_els_rsp.wqe_com, 0);
 		bf_set(wqe_rsp_temp_rpi, &wqe->xmit_els_rsp,
 		       phba->sli4_hba.rpi_ids[ndlp->nlp_rpi]);
+		pcmd = (uint32_t *) (((struct lpfc_dmabuf *)
+					iocbq->context2)->virt);
+		if (phba->fc_topology == LPFC_TOPOLOGY_LOOP) {
+				bf_set(els_req64_sp, &wqe->els_req, 1);
+				bf_set(els_req64_sid, &wqe->els_req,
+					iocbq->vport->fc_myDID);
+				bf_set(wqe_ct, &wqe->els_req.wqe_com, 1);
+				bf_set(wqe_ctxt_tag, &wqe->els_req.wqe_com,
+					phba->vpi_ids[phba->pport->vpi]);
+		}
 		command_type = OTHER_COMMAND;
 		break;
 	case CMD_CLOSE_XRI_CN:
@@ -8037,6 +8131,8 @@ __lpfc_sli_issue_iocb_s4(struct lpfc_hba *phba, uint32_t ring_number,
 		 */
 		if (piocb->iocb_flag & LPFC_IO_FCP)
 			piocb->fcp_wqidx = lpfc_sli4_scmd_to_wqidx_distr(phba);
+		if (unlikely(!phba->sli4_hba.fcp_wq))
+			return IOCB_ERROR;
 		if (lpfc_sli4_wq_put(phba->sli4_hba.fcp_wq[piocb->fcp_wqidx],
 				     &wqe))
 			return IOCB_ERROR;
@@ -8173,6 +8269,137 @@ lpfc_extra_ring_setup( struct lpfc_hba *phba)
 	return 0;
 }
 
+/* lpfc_sli_abts_recover_port - Recover a port that failed an ABTS.
+ * @vport: pointer to virtual port object.
+ * @ndlp: nodelist pointer for the impacted rport.
+ *
+ * The driver calls this routine in response to a XRI ABORT CQE
+ * event from the port.  In this event, the driver is required to
+ * recover its login to the rport even though its login may be valid
+ * from the driver's perspective.  The failed ABTS notice from the
+ * port indicates the rport is not responding.
+ */
+static void
+lpfc_sli_abts_recover_port(struct lpfc_vport *vport,
+			   struct lpfc_nodelist *ndlp)
+{
+	struct Scsi_Host *shost;
+	struct lpfc_hba *phba;
+	unsigned long flags = 0;
+
+	shost = lpfc_shost_from_vport(vport);
+	phba = vport->phba;
+	if (ndlp->nlp_state != NLP_STE_MAPPED_NODE) {
+		lpfc_printf_log(phba, KERN_INFO,
+			LOG_SLI, "3093 No rport recovery needed. "
+			"rport in state 0x%x\n",
+			ndlp->nlp_state);
+		return;
+	}
+	lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+			"3094 Start rport recovery on shost id 0x%x "
+			"fc_id 0x%06x vpi 0x%x rpi 0x%x state 0x%x "
+			"flags 0x%x\n",
+			shost->host_no, ndlp->nlp_DID,
+			vport->vpi, ndlp->nlp_rpi, ndlp->nlp_state,
+			ndlp->nlp_flag);
+	/*
+	 * The rport is not responding.  Don't attempt ADISC recovery.
+	 * Remove the FCP-2 flag to force a PLOGI.
+	 */
+	spin_lock_irqsave(shost->host_lock, flags);
+	ndlp->nlp_fcp_info &= ~NLP_FCP_2_DEVICE;
+	spin_unlock_irqrestore(shost->host_lock, flags);
+	lpfc_disc_state_machine(vport, ndlp, NULL,
+				NLP_EVT_DEVICE_RECOVERY);
+	lpfc_cancel_retry_delay_tmo(vport, ndlp);
+	spin_lock_irqsave(shost->host_lock, flags);
+	ndlp->nlp_flag |= NLP_NPR_2B_DISC;
+	spin_unlock_irqrestore(shost->host_lock, flags);
+	lpfc_disc_start(vport);
+}
+
+/* lpfc_sli_abts_err_handler - handle a failed ABTS request from an SLI3 port.
+ * @phba: Pointer to HBA context object.
+ * @iocbq: Pointer to iocb object.
+ *
+ * The async_event handler calls this routine when it receives
+ * an ASYNC_STATUS_CN event from the port.  The port generates
+ * this event when an Abort Sequence request to an rport fails
+ * twice in succession.  The abort could be originated by the
+ * driver or by the port.  The ABTS could have been for an ELS
+ * or FCP IO.  The port only generates this event when an ABTS
+ * fails to complete after one retry.
+ */
+static void
+lpfc_sli_abts_err_handler(struct lpfc_hba *phba,
+			  struct lpfc_iocbq *iocbq)
+{
+	struct lpfc_nodelist *ndlp = NULL;
+	uint16_t rpi = 0, vpi = 0;
+	struct lpfc_vport *vport = NULL;
+
+	/* The rpi in the ulpContext is vport-sensitive. */
+	vpi = iocbq->iocb.un.asyncstat.sub_ctxt_tag;
+	rpi = iocbq->iocb.ulpContext;
+
+	lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
+			"3092 Port generated ABTS async event "
+			"on vpi %d rpi %d status 0x%x\n",
+			vpi, rpi, iocbq->iocb.ulpStatus);
+
+	vport = lpfc_find_vport_by_vpid(phba, vpi);
+	if (!vport)
+		goto err_exit;
+	ndlp = lpfc_findnode_rpi(vport, rpi);
+	if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
+		goto err_exit;
+
+	if (iocbq->iocb.ulpStatus == IOSTAT_LOCAL_REJECT)
+		lpfc_sli_abts_recover_port(vport, ndlp);
+	return;
+
+ err_exit:
+	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+			"3095 Event Context not found, no "
+			"action on vpi %d rpi %d status 0x%x, reason 0x%x\n",
+			iocbq->iocb.ulpContext, iocbq->iocb.ulpStatus,
+			vpi, rpi);
+}
+
+/* lpfc_sli4_abts_err_handler - handle a failed ABTS request from an SLI4 port.
+ * @phba: pointer to HBA context object.
+ * @ndlp: nodelist pointer for the impacted rport.
+ * @axri: pointer to the wcqe containing the failed exchange.
+ *
+ * The driver calls this routine when it receives an ABORT_XRI_FCP CQE from the
+ * port.  The port generates this event when an abort exchange request to an
+ * rport fails twice in succession with no reply.  The abort could be originated
+ * by the driver or by the port.  The ABTS could have been for an ELS or FCP IO.
+ */
+void
+lpfc_sli4_abts_err_handler(struct lpfc_hba *phba,
+			   struct lpfc_nodelist *ndlp,
+			   struct sli4_wcqe_xri_aborted *axri)
+{
+	struct lpfc_vport *vport;
+
+	if (!ndlp || !NLP_CHK_NODE_ACT(ndlp))
+		lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+				"3115 Node Context not found, driver "
+				"ignoring abts err event\n");
+	vport = ndlp->vport;
+	lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
+			"3116 Port generated FCP XRI ABORT event on "
+			"vpi %d rpi %d xri x%x status 0x%x\n",
+			ndlp->vport->vpi, ndlp->nlp_rpi,
+			bf_get(lpfc_wcqe_xa_xri, axri),
+			bf_get(lpfc_wcqe_xa_status, axri));
+
+	if (bf_get(lpfc_wcqe_xa_status, axri) == IOSTAT_LOCAL_REJECT)
+		lpfc_sli_abts_recover_port(vport, ndlp);
+}
+
 /**
  * lpfc_sli_async_event_handler - ASYNC iocb handler function
  * @phba: Pointer to HBA context object.
@@ -8192,63 +8419,58 @@ lpfc_sli_async_event_handler(struct lpfc_hba * phba,
 {
 	IOCB_t *icmd;
 	uint16_t evt_code;
-	uint16_t temp;
 	struct temp_event temp_event_data;
 	struct Scsi_Host *shost;
 	uint32_t *iocb_w;
 
 	icmd = &iocbq->iocb;
 	evt_code = icmd->un.asyncstat.evt_code;
-	temp = icmd->ulpContext;
 
-	if ((evt_code != ASYNC_TEMP_WARN) &&
-		(evt_code != ASYNC_TEMP_SAFE)) {
+	switch (evt_code) {
+	case ASYNC_TEMP_WARN:
+	case ASYNC_TEMP_SAFE:
+		temp_event_data.data = (uint32_t) icmd->ulpContext;
+		temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
+		if (evt_code == ASYNC_TEMP_WARN) {
+			temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
+			lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
+				"0347 Adapter is very hot, please take "
+				"corrective action. temperature : %d Celsius\n",
+				(uint32_t) icmd->ulpContext);
+		} else {
+			temp_event_data.event_code = LPFC_NORMAL_TEMP;
+			lpfc_printf_log(phba, KERN_ERR, LOG_TEMP,
+				"0340 Adapter temperature is OK now. "
+				"temperature : %d Celsius\n",
+				(uint32_t) icmd->ulpContext);
+		}
+
+		/* Send temperature change event to applications */
+		shost = lpfc_shost_from_vport(phba->pport);
+		fc_host_post_vendor_event(shost, fc_get_event_number(),
+			sizeof(temp_event_data), (char *) &temp_event_data,
+			LPFC_NL_VENDOR_ID);
+		break;
+	case ASYNC_STATUS_CN:
+		lpfc_sli_abts_err_handler(phba, iocbq);
+		break;
+	default:
 		iocb_w = (uint32_t *) icmd;
-		lpfc_printf_log(phba,
-			KERN_ERR,
-			LOG_SLI,
+		lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
 			"0346 Ring %d handler: unexpected ASYNC_STATUS"
 			" evt_code 0x%x\n"
 			"W0  0x%08x W1  0x%08x W2  0x%08x W3  0x%08x\n"
 			"W4  0x%08x W5  0x%08x W6  0x%08x W7  0x%08x\n"
 			"W8  0x%08x W9  0x%08x W10 0x%08x W11 0x%08x\n"
 			"W12 0x%08x W13 0x%08x W14 0x%08x W15 0x%08x\n",
-			pring->ringno,
-			icmd->un.asyncstat.evt_code,
+			pring->ringno, icmd->un.asyncstat.evt_code,
 			iocb_w[0], iocb_w[1], iocb_w[2], iocb_w[3],
 			iocb_w[4], iocb_w[5], iocb_w[6], iocb_w[7],
 			iocb_w[8], iocb_w[9], iocb_w[10], iocb_w[11],
 			iocb_w[12], iocb_w[13], iocb_w[14], iocb_w[15]);
 
-		return;
-	}
-	temp_event_data.data = (uint32_t)temp;
-	temp_event_data.event_type = FC_REG_TEMPERATURE_EVENT;
-	if (evt_code == ASYNC_TEMP_WARN) {
-		temp_event_data.event_code = LPFC_THRESHOLD_TEMP;
-		lpfc_printf_log(phba,
-				KERN_ERR,
-				LOG_TEMP,
-				"0347 Adapter is very hot, please take "
-				"corrective action. temperature : %d Celsius\n",
-				temp);
-	}
-	if (evt_code == ASYNC_TEMP_SAFE) {
-		temp_event_data.event_code = LPFC_NORMAL_TEMP;
-		lpfc_printf_log(phba,
-				KERN_ERR,
-				LOG_TEMP,
-				"0340 Adapter temperature is OK now. "
-				"temperature : %d Celsius\n",
-				temp);
+		break;
 	}
-
-	/* Send temperature change event to applications */
-	shost = lpfc_shost_from_vport(phba->pport);
-	fc_host_post_vendor_event(shost, fc_get_event_number(),
-		sizeof(temp_event_data), (char *) &temp_event_data,
-		LPFC_NL_VENDOR_ID);
-
 }
 
 
@@ -8823,12 +9045,14 @@ lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 {
 	IOCB_t *irsp = &rspiocb->iocb;
 	uint16_t abort_iotag, abort_context;
-	struct lpfc_iocbq *abort_iocb;
-	struct lpfc_sli_ring *pring = &phba->sli.ring[LPFC_ELS_RING];
-
-	abort_iocb = NULL;
+	struct lpfc_iocbq *abort_iocb = NULL;
 
 	if (irsp->ulpStatus) {
+
+		/*
+		 * Assume that the port already completed and returned, or
+		 * will return the iocb. Just Log the message.
+		 */
 		abort_context = cmdiocb->iocb.un.acxri.abortContextTag;
 		abort_iotag = cmdiocb->iocb.un.acxri.abortIoTag;
 
@@ -8846,68 +9070,15 @@ lpfc_sli_abort_els_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 			 */
 			abort_iocb = phba->sli.iocbq_lookup[abort_context];
 
-		/*
-		 *  If the iocb is not found in Firmware queue the iocb
-		 *  might have completed already. Do not free it again.
-		 */
-		if (irsp->ulpStatus == IOSTAT_LOCAL_REJECT) {
-			if (irsp->un.ulpWord[4] != IOERR_NO_XRI) {
-				spin_unlock_irq(&phba->hbalock);
-				lpfc_sli_release_iocbq(phba, cmdiocb);
-				return;
-			}
-			/* For SLI4 the ulpContext field for abort IOCB
-			 * holds the iotag of the IOCB being aborted so
-			 * the local abort_context needs to be reset to
-			 * match the aborted IOCBs ulpContext.
-			 */
-			if (abort_iocb && phba->sli_rev == LPFC_SLI_REV4)
-				abort_context = abort_iocb->iocb.ulpContext;
-		}
-
 		lpfc_printf_log(phba, KERN_WARNING, LOG_ELS | LOG_SLI,
 				"0327 Cannot abort els iocb %p "
 				"with tag %x context %x, abort status %x, "
 				"abort code %x\n",
 				abort_iocb, abort_iotag, abort_context,
 				irsp->ulpStatus, irsp->un.ulpWord[4]);
-		/*
-		 * make sure we have the right iocbq before taking it
-		 * off the txcmplq and try to call completion routine.
-		 */
-		if (!abort_iocb ||
-		    abort_iocb->iocb.ulpContext != abort_context ||
-		    (abort_iocb->iocb_flag & LPFC_DRIVER_ABORTED) == 0)
-			spin_unlock_irq(&phba->hbalock);
-		else if (phba->sli_rev < LPFC_SLI_REV4) {
-			/*
-			 * leave the SLI4 aborted command on the txcmplq
-			 * list and the command complete WCQE's XB bit
-			 * will tell whether the SGL (XRI) can be released
-			 * immediately or to the aborted SGL list for the
-			 * following abort XRI from the HBA.
-			 */
-			list_del_init(&abort_iocb->list);
-			if (abort_iocb->iocb_flag & LPFC_IO_ON_Q) {
-				abort_iocb->iocb_flag &= ~LPFC_IO_ON_Q;
-				pring->txcmplq_cnt--;
-			}
 
-			/* Firmware could still be in progress of DMAing
-			 * payload, so don't free data buffer till after
-			 * a hbeat.
-			 */
-			abort_iocb->iocb_flag |= LPFC_DELAY_MEM_FREE;
-			abort_iocb->iocb_flag &= ~LPFC_DRIVER_ABORTED;
-			spin_unlock_irq(&phba->hbalock);
-
-			abort_iocb->iocb.ulpStatus = IOSTAT_LOCAL_REJECT;
-			abort_iocb->iocb.un.ulpWord[4] = IOERR_ABORT_REQUESTED;
-			(abort_iocb->iocb_cmpl)(phba, abort_iocb, abort_iocb);
-		} else
-			spin_unlock_irq(&phba->hbalock);
+		spin_unlock_irq(&phba->hbalock);
 	}
-
 	lpfc_sli_release_iocbq(phba, cmdiocb);
 	return;
 }
@@ -9258,6 +9429,14 @@ void
 lpfc_sli_abort_fcp_cmpl(struct lpfc_hba *phba, struct lpfc_iocbq *cmdiocb,
 			struct lpfc_iocbq *rspiocb)
 {
+	lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+			"3096 ABORT_XRI_CN completing on xri x%x "
+			"original iotag x%x, abort cmd iotag x%x "
+			"status 0x%x, reason 0x%x\n",
+			cmdiocb->iocb.un.acxri.abortContextTag,
+			cmdiocb->iocb.un.acxri.abortIoTag,
+			cmdiocb->iotag, rspiocb->iocb.ulpStatus,
+			rspiocb->iocb.un.ulpWord[4]);
 	lpfc_sli_release_iocbq(phba, cmdiocb);
 	return;
 }
@@ -9771,7 +9950,7 @@ lpfc_sli4_eratt_read(struct lpfc_hba *phba)
 			phba->work_status[1] =
 				readl(phba->sli4_hba.u.if_type2.ERR2regaddr);
 			lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
-					"2885 Port Error Detected: "
+					"2885 Port Status Event: "
 					"port status reg 0x%x, "
 					"port smphr reg 0x%x, "
 					"error 1=0x%x, error 2=0x%x\n",
@@ -10777,6 +10956,9 @@ static void
 lpfc_sli4_sp_handle_rel_wcqe(struct lpfc_hba *phba,
 			     struct lpfc_wcqe_release *wcqe)
 {
+	/* sanity check on queue memory */
+	if (unlikely(!phba->sli4_hba.els_wq))
+		return;
 	/* Check for the slow-path ELS work queue */
 	if (bf_get(lpfc_wcqe_r_wq_id, wcqe) == phba->sli4_hba.els_wq->queue_id)
 		lpfc_sli4_wq_release(phba->sli4_hba.els_wq,
@@ -10866,6 +11048,10 @@ lpfc_sli4_sp_handle_rcqe(struct lpfc_hba *phba, struct lpfc_rcqe *rcqe)
 	uint32_t status, rq_id;
 	unsigned long iflags;
 
+	/* sanity check on queue memory */
+	if (unlikely(!hrq) || unlikely(!drq))
+		return workposted;
+
 	if (bf_get(lpfc_cqe_code, rcqe) == CQE_CODE_RECEIVE_V1)
 		rq_id = bf_get(lpfc_rcqe_rq_id_v1, rcqe);
 	else
@@ -11000,6 +11186,9 @@ lpfc_sli4_sp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe)
 
 	/* Search for completion queue pointer matching this cqid */
 	speq = phba->sli4_hba.sp_eq;
+	/* sanity check on queue memory */
+	if (unlikely(!speq))
+		return;
 	list_for_each_entry(childq, &speq->child_list, list) {
 		if (childq->queue_id == cqid) {
 			cq = childq;
@@ -11241,12 +11430,18 @@ lpfc_sli4_fp_handle_eqe(struct lpfc_hba *phba, struct lpfc_eqe *eqe,
 		return;
 	}
 
+	if (unlikely(!phba->sli4_hba.fcp_cq)) {
+		lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
+				"3146 Fast-path completion queues "
+				"does not exist\n");
+		return;
+	}
 	cq = phba->sli4_hba.fcp_cq[fcp_cqidx];
 	if (unlikely(!cq)) {
 		if (phba->sli.sli_flag & LPFC_SLI_ACTIVE)
 			lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
 					"0367 Fast-path completion queue "
-					"does not exist\n");
+					"(%d) does not exist\n", fcp_cqidx);
 		return;
 	}
 
@@ -11417,6 +11612,8 @@ lpfc_sli4_fp_intr_handler(int irq, void *dev_id)
 
 	/* Get to the EQ struct associated with this vector */
 	fpeq = phba->sli4_hba.fp_eq[fcp_eqidx];
+	if (unlikely(!fpeq))
+		return IRQ_NONE;
 
 	/* Check device state for handling interrupt */
 	if (unlikely(lpfc_intr_state_check(phba))) {
@@ -11635,6 +11832,9 @@ lpfc_eq_create(struct lpfc_hba *phba, struct lpfc_queue *eq, uint16_t imax)
 	uint16_t dmult;
 	uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
 
+	/* sanity check on queue memory */
+	if (!eq)
+		return -ENODEV;
 	if (!phba->sli4_hba.pc_sli4_params.supported)
 		hw_page_size = SLI4_PAGE_SIZE;
 
@@ -11751,6 +11951,9 @@ lpfc_cq_create(struct lpfc_hba *phba, struct lpfc_queue *cq,
 	union lpfc_sli4_cfg_shdr *shdr;
 	uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
 
+	/* sanity check on queue memory */
+	if (!cq || !eq)
+		return -ENODEV;
 	if (!phba->sli4_hba.pc_sli4_params.supported)
 		hw_page_size = SLI4_PAGE_SIZE;
 
@@ -11933,6 +12136,9 @@ lpfc_mq_create(struct lpfc_hba *phba, struct lpfc_queue *mq,
 	union lpfc_sli4_cfg_shdr *shdr;
 	uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
 
+	/* sanity check on queue memory */
+	if (!mq || !cq)
+		return -ENODEV;
 	if (!phba->sli4_hba.pc_sli4_params.supported)
 		hw_page_size = SLI4_PAGE_SIZE;
 
@@ -12083,6 +12289,9 @@ lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
 	uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
 	struct dma_address *page;
 
+	/* sanity check on queue memory */
+	if (!wq || !cq)
+		return -ENODEV;
 	if (!phba->sli4_hba.pc_sli4_params.supported)
 		hw_page_size = SLI4_PAGE_SIZE;
 
@@ -12151,6 +12360,7 @@ lpfc_wq_create(struct lpfc_hba *phba, struct lpfc_queue *wq,
 	wq->subtype = subtype;
 	wq->host_index = 0;
 	wq->hba_index = 0;
+	wq->entry_repost = LPFC_RELEASE_NOTIFICATION_INTERVAL;
 
 	/* link the wq onto the parent cq child list */
 	list_add_tail(&wq->list, &cq->child_list);
@@ -12174,6 +12384,9 @@ lpfc_rq_adjust_repost(struct lpfc_hba *phba, struct lpfc_queue *rq, int qno)
 {
 	uint32_t cnt;
 
+	/* sanity check on queue memory */
+	if (!rq)
+		return;
 	cnt = lpfc_hbq_defs[qno]->entry_count;
 
 	/* Recalc repost for RQs based on buffers initially posted */
@@ -12219,6 +12432,9 @@ lpfc_rq_create(struct lpfc_hba *phba, struct lpfc_queue *hrq,
 	union lpfc_sli4_cfg_shdr *shdr;
 	uint32_t hw_page_size = phba->sli4_hba.pc_sli4_params.if_page_sz;
 
+	/* sanity check on queue memory */
+	if (!hrq || !drq || !cq)
+		return -ENODEV;
 	if (!phba->sli4_hba.pc_sli4_params.supported)
 		hw_page_size = SLI4_PAGE_SIZE;
 
@@ -12420,6 +12636,7 @@ lpfc_eq_destroy(struct lpfc_hba *phba, struct lpfc_queue *eq)
 	uint32_t shdr_status, shdr_add_status;
 	union lpfc_sli4_cfg_shdr *shdr;
 
+	/* sanity check on queue memory */
 	if (!eq)
 		return -ENODEV;
 	mbox = mempool_alloc(eq->phba->mbox_mem_pool, GFP_KERNEL);
@@ -12475,6 +12692,7 @@ lpfc_cq_destroy(struct lpfc_hba *phba, struct lpfc_queue *cq)
 	uint32_t shdr_status, shdr_add_status;
 	union lpfc_sli4_cfg_shdr *shdr;
 
+	/* sanity check on queue memory */
 	if (!cq)
 		return -ENODEV;
 	mbox = mempool_alloc(cq->phba->mbox_mem_pool, GFP_KERNEL);
@@ -12528,6 +12746,7 @@ lpfc_mq_destroy(struct lpfc_hba *phba, struct lpfc_queue *mq)
 	uint32_t shdr_status, shdr_add_status;
 	union lpfc_sli4_cfg_shdr *shdr;
 
+	/* sanity check on queue memory */
 	if (!mq)
 		return -ENODEV;
 	mbox = mempool_alloc(mq->phba->mbox_mem_pool, GFP_KERNEL);
@@ -12581,6 +12800,7 @@ lpfc_wq_destroy(struct lpfc_hba *phba, struct lpfc_queue *wq)
 	uint32_t shdr_status, shdr_add_status;
 	union lpfc_sli4_cfg_shdr *shdr;
 
+	/* sanity check on queue memory */
 	if (!wq)
 		return -ENODEV;
 	mbox = mempool_alloc(wq->phba->mbox_mem_pool, GFP_KERNEL);
@@ -12634,6 +12854,7 @@ lpfc_rq_destroy(struct lpfc_hba *phba, struct lpfc_queue *hrq,
 	uint32_t shdr_status, shdr_add_status;
 	union lpfc_sli4_cfg_shdr *shdr;
 
+	/* sanity check on queue memory */
 	if (!hrq || !drq)
 		return -ENODEV;
 	mbox = mempool_alloc(hrq->phba->mbox_mem_pool, GFP_KERNEL);
@@ -15252,45 +15473,42 @@ lpfc_sli4_fcf_dead_failthrough(struct lpfc_hba *phba)
 }
 
 /**
- * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
+ * lpfc_sli_get_config_region23 - Get sli3 port region 23 data.
  * @phba: pointer to lpfc hba data structure.
+ * @rgn23_data: pointer to configure region 23 data.
  *
- * This function read region 23 and parse TLV for port status to
- * decide if the user disaled the port. If the TLV indicates the
- * port is disabled, the hba_flag is set accordingly.
+ * This function gets SLI3 port configure region 23 data through memory dump
+ * mailbox command. When it successfully retrieves data, the size of the data
+ * will be returned, otherwise, 0 will be returned.
  **/
-void
-lpfc_sli_read_link_ste(struct lpfc_hba *phba)
+static uint32_t
+lpfc_sli_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
 {
 	LPFC_MBOXQ_t *pmb = NULL;
 	MAILBOX_t *mb;
-	uint8_t *rgn23_data = NULL;
-	uint32_t offset = 0, data_size, sub_tlv_len, tlv_offset;
+	uint32_t offset = 0;
 	int rc;
 
+	if (!rgn23_data)
+		return 0;
+
 	pmb = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
 	if (!pmb) {
 		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
-			"2600 lpfc_sli_read_serdes_param failed to"
-			" allocate mailbox memory\n");
-		goto out;
+				"2600 failed to allocate mailbox memory\n");
+		return 0;
 	}
 	mb = &pmb->u.mb;
 
-	/* Get adapter Region 23 data */
-	rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
-	if (!rgn23_data)
-		goto out;
-
 	do {
 		lpfc_dump_mem(phba, pmb, offset, DMP_REGION_23);
 		rc = lpfc_sli_issue_mbox(phba, pmb, MBX_POLL);
 
 		if (rc != MBX_SUCCESS) {
 			lpfc_printf_log(phba, KERN_INFO, LOG_INIT,
-				"2601 lpfc_sli_read_link_ste failed to"
-				" read config region 23 rc 0x%x Status 0x%x\n",
-				rc, mb->mbxStatus);
+					"2601 failed to read config "
+					"region 23, rc 0x%x Status 0x%x\n",
+					rc, mb->mbxStatus);
 			mb->un.varDmp.word_cnt = 0;
 		}
 		/*
@@ -15303,13 +15521,96 @@ lpfc_sli_read_link_ste(struct lpfc_hba *phba)
 			mb->un.varDmp.word_cnt = DMP_RGN23_SIZE - offset;
 
 		lpfc_sli_pcimem_bcopy(((uint8_t *)mb) + DMP_RSP_OFFSET,
-			rgn23_data + offset,
-			mb->un.varDmp.word_cnt);
+				       rgn23_data + offset,
+				       mb->un.varDmp.word_cnt);
 		offset += mb->un.varDmp.word_cnt;
 	} while (mb->un.varDmp.word_cnt && offset < DMP_RGN23_SIZE);
 
-	data_size = offset;
-	offset = 0;
+	mempool_free(pmb, phba->mbox_mem_pool);
+	return offset;
+}
+
+/**
+ * lpfc_sli4_get_config_region23 - Get sli4 port region 23 data.
+ * @phba: pointer to lpfc hba data structure.
+ * @rgn23_data: pointer to configure region 23 data.
+ *
+ * This function gets SLI4 port configure region 23 data through memory dump
+ * mailbox command. When it successfully retrieves data, the size of the data
+ * will be returned, otherwise, 0 will be returned.
+ **/
+static uint32_t
+lpfc_sli4_get_config_region23(struct lpfc_hba *phba, char *rgn23_data)
+{
+	LPFC_MBOXQ_t *mboxq = NULL;
+	struct lpfc_dmabuf *mp = NULL;
+	struct lpfc_mqe *mqe;
+	uint32_t data_length = 0;
+	int rc;
+
+	if (!rgn23_data)
+		return 0;
+
+	mboxq = mempool_alloc(phba->mbox_mem_pool, GFP_KERNEL);
+	if (!mboxq) {
+		lpfc_printf_log(phba, KERN_ERR, LOG_INIT,
+				"3105 failed to allocate mailbox memory\n");
+		return 0;
+	}
+
+	if (lpfc_sli4_dump_cfg_rg23(phba, mboxq))
+		goto out;
+	mqe = &mboxq->u.mqe;
+	mp = (struct lpfc_dmabuf *) mboxq->context1;
+	rc = lpfc_sli_issue_mbox(phba, mboxq, MBX_POLL);
+	if (rc)
+		goto out;
+	data_length = mqe->un.mb_words[5];
+	if (data_length == 0)
+		goto out;
+	if (data_length > DMP_RGN23_SIZE) {
+		data_length = 0;
+		goto out;
+	}
+	lpfc_sli_pcimem_bcopy((char *)mp->virt, rgn23_data, data_length);
+out:
+	mempool_free(mboxq, phba->mbox_mem_pool);
+	if (mp) {
+		lpfc_mbuf_free(phba, mp->virt, mp->phys);
+		kfree(mp);
+	}
+	return data_length;
+}
+
+/**
+ * lpfc_sli_read_link_ste - Read region 23 to decide if link is disabled.
+ * @phba: pointer to lpfc hba data structure.
+ *
+ * This function read region 23 and parse TLV for port status to
+ * decide if the user disaled the port. If the TLV indicates the
+ * port is disabled, the hba_flag is set accordingly.
+ **/
+void
+lpfc_sli_read_link_ste(struct lpfc_hba *phba)
+{
+	uint8_t *rgn23_data = NULL;
+	uint32_t if_type, data_size, sub_tlv_len, tlv_offset;
+	uint32_t offset = 0;
+
+	/* Get adapter Region 23 data */
+	rgn23_data = kzalloc(DMP_RGN23_SIZE, GFP_KERNEL);
+	if (!rgn23_data)
+		goto out;
+
+	if (phba->sli_rev < LPFC_SLI_REV4)
+		data_size = lpfc_sli_get_config_region23(phba, rgn23_data);
+	else {
+		if_type = bf_get(lpfc_sli_intf_if_type,
+				 &phba->sli4_hba.sli_intf);
+		if (if_type == LPFC_SLI_INTF_IF_TYPE_0)
+			goto out;
+		data_size = lpfc_sli4_get_config_region23(phba, rgn23_data);
+	}
 
 	if (!data_size)
 		goto out;
@@ -15373,9 +15674,8 @@ lpfc_sli_read_link_ste(struct lpfc_hba *phba)
 			goto out;
 		}
 	}
+
 out:
-	if (pmb)
-		mempool_free(pmb, phba->mbox_mem_pool);
 	kfree(rgn23_data);
 	return;
 }
diff --git a/drivers/scsi/lpfc/lpfc_sli4.h b/drivers/scsi/lpfc/lpfc_sli4.h
index d5cffd8af340..3f266e2c54e0 100644
--- a/drivers/scsi/lpfc/lpfc_sli4.h
+++ b/drivers/scsi/lpfc/lpfc_sli4.h
@@ -291,7 +291,7 @@ struct lpfc_bmbx {
 #define LPFC_RQE_SIZE		8
 
 #define LPFC_EQE_DEF_COUNT	1024
-#define LPFC_CQE_DEF_COUNT      256
+#define LPFC_CQE_DEF_COUNT      1024
 #define LPFC_WQE_DEF_COUNT      256
 #define LPFC_MQE_DEF_COUNT      16
 #define LPFC_RQE_DEF_COUNT	512
@@ -420,7 +420,16 @@ struct lpfc_sli4_hba {
 			void __iomem *STATUSregaddr;
 			void __iomem *CTRLregaddr;
 			void __iomem *ERR1regaddr;
+#define SLIPORT_ERR1_REG_ERR_CODE_1		0x1
+#define SLIPORT_ERR1_REG_ERR_CODE_2		0x2
 			void __iomem *ERR2regaddr;
+#define SLIPORT_ERR2_REG_FW_RESTART		0x0
+#define SLIPORT_ERR2_REG_FUNC_PROVISON		0x1
+#define SLIPORT_ERR2_REG_FORCED_DUMP		0x2
+#define SLIPORT_ERR2_REG_FAILURE_EQ		0x3
+#define SLIPORT_ERR2_REG_FAILURE_CQ		0x4
+#define SLIPORT_ERR2_REG_FAILURE_BUS		0x5
+#define SLIPORT_ERR2_REG_FAILURE_RQ		0x6
 		} if_type2;
 	} u;
 
diff --git a/drivers/scsi/lpfc/lpfc_version.h b/drivers/scsi/lpfc/lpfc_version.h
index b0630e37f1ef..dd044d01a07f 100644
--- a/drivers/scsi/lpfc/lpfc_version.h
+++ b/drivers/scsi/lpfc/lpfc_version.h
@@ -18,7 +18,7 @@
  * included with this package.                                     *
  *******************************************************************/
 
-#define LPFC_DRIVER_VERSION "8.3.27"
+#define LPFC_DRIVER_VERSION "8.3.28"
 #define LPFC_DRIVER_NAME		"lpfc"
 #define LPFC_SP_DRIVER_HANDLER_NAME	"lpfc:sp"
 #define LPFC_FP_DRIVER_HANDLER_NAME	"lpfc:fp"
diff --git a/drivers/scsi/lpfc/lpfc_vport.c b/drivers/scsi/lpfc/lpfc_vport.c
index cff6ca67415c..0fe188e66000 100644
--- a/drivers/scsi/lpfc/lpfc_vport.c
+++ b/drivers/scsi/lpfc/lpfc_vport.c
@@ -774,10 +774,10 @@ lpfc_create_vport_work_array(struct lpfc_hba *phba)
 		return NULL;
 	spin_lock_irq(&phba->hbalock);
 	list_for_each_entry(port_iterator, &phba->port_list, listentry) {
+		if (port_iterator->load_flag & FC_UNLOADING)
+			continue;
 		if (!scsi_host_get(lpfc_shost_from_vport(port_iterator))) {
-			if (!(port_iterator->load_flag & FC_UNLOADING))
-				lpfc_printf_vlog(port_iterator, KERN_ERR,
-					 LOG_VPORT,
+			lpfc_printf_vlog(port_iterator, KERN_ERR, LOG_VPORT,
 					 "1801 Create vport work array FAILED: "
 					 "cannot do scsi_host_get\n");
 			continue;
diff --git a/drivers/scsi/mac_scsi.c b/drivers/scsi/mac_scsi.c
index af3a6af97cc7..ea2bde206f7f 100644
--- a/drivers/scsi/mac_scsi.c
+++ b/drivers/scsi/mac_scsi.c
@@ -291,8 +291,7 @@ int __init macscsi_detect(struct scsi_host_template * tpnt)
     ((struct NCR5380_hostdata *)instance->hostdata)->ctrl = 0;
 
     if (instance->irq != SCSI_IRQ_NONE)
-	if (request_irq(instance->irq, NCR5380_intr, IRQ_FLG_SLOW, 
-			"ncr5380", instance)) {
+	if (request_irq(instance->irq, NCR5380_intr, 0, "ncr5380", instance)) {
 	    printk(KERN_WARNING "scsi%d: IRQ%d not free, interrupts disabled\n",
 		   instance->host_no, instance->irq);
 	    instance->irq = SCSI_IRQ_NONE;
diff --git a/drivers/scsi/mpt2sas/mpi/mpi2.h b/drivers/scsi/mpt2sas/mpi/mpi2.h
index 8dc1b32918dd..a01f0aa66f20 100644
--- a/drivers/scsi/mpt2sas/mpi/mpi2.h
+++ b/drivers/scsi/mpt2sas/mpi/mpi2.h
@@ -8,7 +8,7 @@
  *                  scatter/gather formats.
  *  Creation Date:  June 21, 2006
  *
- *  mpi2.h Version:  02.00.20
+ *  mpi2.h Version:  02.00.22
  *
  *  Version History
  *  ---------------
@@ -69,6 +69,8 @@
  *  02-23-11  02.00.19  Bumped MPI2_HEADER_VERSION_UNIT.
  *                      Added MPI2_FUNCTION_SEND_HOST_MESSAGE.
  *  03-09-11  02.00.20  Bumped MPI2_HEADER_VERSION_UNIT.
+ *  05-25-11  02.00.21  Bumped MPI2_HEADER_VERSION_UNIT.
+ *  08-24-11  02.00.22  Bumped MPI2_HEADER_VERSION_UNIT.
  *  --------------------------------------------------------------------------
  */
 
@@ -94,7 +96,7 @@
 #define MPI2_VERSION_02_00                  (0x0200)
 
 /* versioning for this MPI header set */
-#define MPI2_HEADER_VERSION_UNIT            (0x14)
+#define MPI2_HEADER_VERSION_UNIT            (0x16)
 #define MPI2_HEADER_VERSION_DEV             (0x00)
 #define MPI2_HEADER_VERSION_UNIT_MASK       (0xFF00)
 #define MPI2_HEADER_VERSION_UNIT_SHIFT      (8)
@@ -1073,8 +1075,10 @@ typedef struct _MPI2_IEEE_SGE_UNION
 #define MPI2_IEEE_SGE_FLAGS_IOCPLB_ADDR         (0x02)
 #define MPI2_IEEE_SGE_FLAGS_IOCPLBNTA_ADDR      (0x03)
 						/* IEEE Simple Element only */
-#define MPI2_IEEE_SGE_FLAGS_SYSTEMPLBCPI_ADDR   (0x03)
+#define MPI2_IEEE_SGE_FLAGS_SYSTEMPLBPCI_ADDR   (0x03)
 						/* IEEE Chain Element only */
+#define MPI2_IEEE_SGE_FLAGS_SYSTEMPLBCPI_ADDR   \
+	(MPI2_IEEE_SGE_FLAGS_SYSTEMPLBPCI_ADDR) /* typo in name */
 
 /****************************************************************************
 *  IEEE SGE operation Macros
diff --git a/drivers/scsi/mpt2sas/mpi/mpi2_cnfg.h b/drivers/scsi/mpt2sas/mpi/mpi2_cnfg.h
index cfd95b4e3004..3a023dad77a1 100644
--- a/drivers/scsi/mpt2sas/mpi/mpi2_cnfg.h
+++ b/drivers/scsi/mpt2sas/mpi/mpi2_cnfg.h
@@ -6,7 +6,7 @@
  *          Title:  MPI Configuration messages and pages
  *  Creation Date:  November 10, 2006
  *
- *    mpi2_cnfg.h Version:  02.00.19
+ *    mpi2_cnfg.h Version:  02.00.21
  *
  *  Version History
  *  ---------------
@@ -140,6 +140,13 @@
  *                      Added SASNotifyPrimitiveMasks field to
  *                      MPI2_CONFIG_PAGE_IOC_7.
  *  03-09-11  02.00.19  Fixed IO Unit Page 10 (to match the spec).
+ *  05-25-11  02.00.20  Cleaned up a few comments.
+ *  08-24-11  02.00.21  Marked the IO Unit Page 7 PowerManagementCapabilities
+ *                      for PCIe link as obsolete.
+ *                      Added SpinupFlags field containing a Disable Spin-up
+ *                      bit to the MPI2_SAS_IOUNIT4_SPINUP_GROUP fields of
+ *                      SAS IO Unit Page 4.
+
  *  --------------------------------------------------------------------------
  */
 
@@ -904,8 +911,8 @@ typedef struct _MPI2_CONFIG_PAGE_IO_UNIT_7 {
 #define MPI2_IOUNITPAGE7_PMCAP_12_5_PCT_IOCSPEED    (0x00000400)
 #define MPI2_IOUNITPAGE7_PMCAP_25_0_PCT_IOCSPEED    (0x00000200)
 #define MPI2_IOUNITPAGE7_PMCAP_50_0_PCT_IOCSPEED    (0x00000100)
-#define MPI2_IOUNITPAGE7_PMCAP_PCIE_WIDTH_CHANGE    (0x00000008)
-#define MPI2_IOUNITPAGE7_PMCAP_PCIE_SPEED_CHANGE    (0x00000004)
+#define MPI2_IOUNITPAGE7_PMCAP_PCIE_WIDTH_CHANGE    (0x00000008) /* obsolete */
+#define MPI2_IOUNITPAGE7_PMCAP_PCIE_SPEED_CHANGE    (0x00000004) /* obsolete */
 
 /* defines for IO Unit Page 7 IOCTemperatureUnits field */
 #define MPI2_IOUNITPAGE7_IOC_TEMP_NOT_PRESENT       (0x00)
@@ -1970,10 +1977,14 @@ typedef struct _MPI2_SAS_IOUNIT4_SPINUP_GROUP
 {
     U8          MaxTargetSpinup;            /* 0x00 */
     U8          SpinupDelay;                /* 0x01 */
-    U16         Reserved1;                  /* 0x02 */
+	U8          SpinupFlags;                /* 0x02 */
+	U8          Reserved1;                  /* 0x03 */
 } MPI2_SAS_IOUNIT4_SPINUP_GROUP, MPI2_POINTER PTR_MPI2_SAS_IOUNIT4_SPINUP_GROUP,
   Mpi2SasIOUnit4SpinupGroup_t, MPI2_POINTER pMpi2SasIOUnit4SpinupGroup_t;
 
+/* defines for SAS IO Unit Page 4 SpinupFlags */
+#define MPI2_SASIOUNIT4_SPINUP_DISABLE_FLAG         (0x01)
+
 /*
  * Host code (drivers, BIOS, utilities, etc.) should leave this define set to
  * one and check the value returned for NumPhys at runtime.
@@ -2321,13 +2332,12 @@ typedef struct _MPI2_CONFIG_PAGE_EXPANDER_1
 
 /* use MPI2_SAS_NEG_LINK_RATE_ defines for the NegotiatedLinkRate field */
 
-/* use MPI2_SAS_APHYINFO_ defines for AttachedPhyInfo field */
-
 /* values for SAS Expander Page 1 DiscoveryInfo field */
 #define MPI2_SAS_EXPANDER1_DISCINFO_BAD_PHY_DISABLED    (0x04)
 #define MPI2_SAS_EXPANDER1_DISCINFO_LINK_STATUS_CHANGE  (0x02)
 #define MPI2_SAS_EXPANDER1_DISCINFO_NO_ROUTING_ENTRIES  (0x01)
 
+/* use MPI2_SAS_APHYINFO_ defines for AttachedPhyInfo field */
 
 /****************************************************************************
 *   SAS Device Config Pages
@@ -2447,6 +2457,8 @@ typedef struct _MPI2_CONFIG_PAGE_SAS_PHY_0
 
 #define MPI2_SASPHY0_PAGEVERSION            (0x03)
 
+/* use MPI2_SAS_APHYINFO_ defines for AttachedPhyInfo field */
+
 /* use MPI2_SAS_PRATE_ defines for the ProgrammedLinkRate field */
 
 /* use MPI2_SAS_HWRATE_ defines for the HwLinkRate field */
@@ -2454,12 +2466,10 @@ typedef struct _MPI2_CONFIG_PAGE_SAS_PHY_0
 /* values for SAS PHY Page 0 Flags field */
 #define MPI2_SAS_PHY0_FLAGS_SGPIO_DIRECT_ATTACH_ENC             (0x01)
 
-/* use MPI2_SAS_APHYINFO_ defines for AttachedPhyInfo field */
+/* use MPI2_SAS_PHYINFO_ for the PhyInfo field */
 
 /* use MPI2_SAS_NEG_LINK_RATE_ defines for the NegotiatedLinkRate field */
 
-/* use MPI2_SAS_PHYINFO_ for the PhyInfo field */
-
 
 /* SAS PHY Page 1 */
 
diff --git a/drivers/scsi/mpt2sas/mpi/mpi2_ioc.h b/drivers/scsi/mpt2sas/mpi/mpi2_ioc.h
index 93d9b6956d05..9a925c07a9ec 100644
--- a/drivers/scsi/mpt2sas/mpi/mpi2_ioc.h
+++ b/drivers/scsi/mpt2sas/mpi/mpi2_ioc.h
@@ -6,7 +6,7 @@
  *          Title:  MPI IOC, Port, Event, FW Download, and FW Upload messages
  *  Creation Date:  October 11, 2006
  *
- *  mpi2_ioc.h Version:  02.00.17
+ *  mpi2_ioc.h Version:  02.00.19
  *
  *  Version History
  *  ---------------
@@ -110,6 +110,13 @@
  *                      Added Temperature Threshold Event.
  *                      Added Host Message Event.
  *                      Added Send Host Message request and reply.
+ *  05-25-11  02.00.18  For Extended Image Header, added
+ *                      MPI2_EXT_IMAGE_TYPE_MIN_PRODUCT_SPECIFIC and
+ *                      MPI2_EXT_IMAGE_TYPE_MAX_PRODUCT_SPECIFIC defines.
+ *                      Deprecated MPI2_EXT_IMAGE_TYPE_MAX define.
+ *  08-24-11  02.00.19  Added PhysicalPort field to
+ *                      MPI2_EVENT_DATA_SAS_DEVICE_STATUS_CHANGE structure.
+ *                      Marked MPI2_PM_CONTROL_FEATURE_PCIE_LINK as obsolete.
  *  --------------------------------------------------------------------------
  */
 
@@ -578,7 +585,7 @@ typedef struct _MPI2_EVENT_DATA_SAS_DEVICE_STATUS_CHANGE
 {
     U16                     TaskTag;                        /* 0x00 */
     U8                      ReasonCode;                     /* 0x02 */
-    U8                      Reserved1;                      /* 0x03 */
+	U8                      PhysicalPort;                   /* 0x03 */
     U8                      ASC;                            /* 0x04 */
     U8                      ASCQ;                           /* 0x05 */
     U16                     DevHandle;                      /* 0x06 */
@@ -1366,16 +1373,18 @@ typedef struct _MPI2_EXT_IMAGE_HEADER
 #define MPI2_EXT_IMAGE_HEADER_SIZE              (0x40)
 
 /* defines for the ImageType field */
-#define MPI2_EXT_IMAGE_TYPE_UNSPECIFIED         (0x00)
-#define MPI2_EXT_IMAGE_TYPE_FW                  (0x01)
-#define MPI2_EXT_IMAGE_TYPE_NVDATA              (0x03)
-#define MPI2_EXT_IMAGE_TYPE_BOOTLOADER          (0x04)
-#define MPI2_EXT_IMAGE_TYPE_INITIALIZATION      (0x05)
-#define MPI2_EXT_IMAGE_TYPE_FLASH_LAYOUT        (0x06)
-#define MPI2_EXT_IMAGE_TYPE_SUPPORTED_DEVICES   (0x07)
-#define MPI2_EXT_IMAGE_TYPE_MEGARAID            (0x08)
-
-#define MPI2_EXT_IMAGE_TYPE_MAX                 (MPI2_EXT_IMAGE_TYPE_MEGARAID)
+#define MPI2_EXT_IMAGE_TYPE_UNSPECIFIED				(0x00)
+#define MPI2_EXT_IMAGE_TYPE_FW						(0x01)
+#define MPI2_EXT_IMAGE_TYPE_NVDATA					(0x03)
+#define MPI2_EXT_IMAGE_TYPE_BOOTLOADER				(0x04)
+#define MPI2_EXT_IMAGE_TYPE_INITIALIZATION			(0x05)
+#define MPI2_EXT_IMAGE_TYPE_FLASH_LAYOUT			(0x06)
+#define MPI2_EXT_IMAGE_TYPE_SUPPORTED_DEVICES		(0x07)
+#define MPI2_EXT_IMAGE_TYPE_MEGARAID				(0x08)
+#define MPI2_EXT_IMAGE_TYPE_MIN_PRODUCT_SPECIFIC    (0x80)
+#define MPI2_EXT_IMAGE_TYPE_MAX_PRODUCT_SPECIFIC    (0xFF)
+#define MPI2_EXT_IMAGE_TYPE_MAX                   \
+	(MPI2_EXT_IMAGE_TYPE_MAX_PRODUCT_SPECIFIC)	/* deprecated */
 
 
 
@@ -1568,7 +1577,7 @@ typedef struct _MPI2_PWR_MGMT_CONTROL_REQUEST {
 /* defines for the Feature field */
 #define MPI2_PM_CONTROL_FEATURE_DA_PHY_POWER_COND       (0x01)
 #define MPI2_PM_CONTROL_FEATURE_PORT_WIDTH_MODULATION   (0x02)
-#define MPI2_PM_CONTROL_FEATURE_PCIE_LINK               (0x03)
+#define MPI2_PM_CONTROL_FEATURE_PCIE_LINK               (0x03) /* obsolete */
 #define MPI2_PM_CONTROL_FEATURE_IOC_SPEED               (0x04)
 #define MPI2_PM_CONTROL_FEATURE_MIN_PRODUCT_SPECIFIC    (0x80)
 #define MPI2_PM_CONTROL_FEATURE_MAX_PRODUCT_SPECIFIC    (0xFF)
@@ -1597,14 +1606,14 @@ typedef struct _MPI2_PWR_MGMT_CONTROL_REQUEST {
 
 /* parameter usage for the MPI2_PM_CONTROL_FEATURE_PCIE_LINK Feature */
 /* Parameter1 indicates desired PCIe link speed using these defines */
-#define MPI2_PM_CONTROL_PARAM1_PCIE_2_5_GBPS            (0x00)
-#define MPI2_PM_CONTROL_PARAM1_PCIE_5_0_GBPS            (0x01)
-#define MPI2_PM_CONTROL_PARAM1_PCIE_8_0_GBPS            (0x02)
+#define MPI2_PM_CONTROL_PARAM1_PCIE_2_5_GBPS            (0x00) /* obsolete */
+#define MPI2_PM_CONTROL_PARAM1_PCIE_5_0_GBPS            (0x01) /* obsolete */
+#define MPI2_PM_CONTROL_PARAM1_PCIE_8_0_GBPS            (0x02) /* obsolete */
 /* Parameter2 indicates desired PCIe link width using these defines */
-#define MPI2_PM_CONTROL_PARAM2_WIDTH_X1                 (0x01)
-#define MPI2_PM_CONTROL_PARAM2_WIDTH_X2                 (0x02)
-#define MPI2_PM_CONTROL_PARAM2_WIDTH_X4                 (0x04)
-#define MPI2_PM_CONTROL_PARAM2_WIDTH_X8                 (0x08)
+#define MPI2_PM_CONTROL_PARAM2_WIDTH_X1                 (0x01) /* obsolete */
+#define MPI2_PM_CONTROL_PARAM2_WIDTH_X2                 (0x02) /* obsolete */
+#define MPI2_PM_CONTROL_PARAM2_WIDTH_X4                 (0x04) /* obsolete */
+#define MPI2_PM_CONTROL_PARAM2_WIDTH_X8                 (0x08) /* obsolete */
 /* Parameter3 and Parameter4 are reserved */
 
 /* parameter usage for the MPI2_PM_CONTROL_FEATURE_IOC_SPEED Feature */
diff --git a/drivers/scsi/mpt2sas/mpi/mpi2_raid.h b/drivers/scsi/mpt2sas/mpi/mpi2_raid.h
index bd61a7b60a2b..0601612b875a 100644
--- a/drivers/scsi/mpt2sas/mpi/mpi2_raid.h
+++ b/drivers/scsi/mpt2sas/mpi/mpi2_raid.h
@@ -6,7 +6,7 @@
  *          Title:  MPI Integrated RAID messages and structures
  *  Creation Date:  April 26, 2007
  *
- *    mpi2_raid.h Version:  02.00.05
+ *    mpi2_raid.h Version:  02.00.06
  *
  *  Version History
  *  ---------------
@@ -23,6 +23,10 @@
  *  07-30-09  02.00.04  Added proper define for the Use Default Settings bit of
  *                      VolumeCreationFlags and marked the old one as obsolete.
  *  05-12-10  02.00.05  Added MPI2_RAID_VOL_FLAGS_OP_MDC define.
+ *  08-24-10  02.00.06  Added MPI2_RAID_ACTION_COMPATIBILITY_CHECK along with
+ *                      related structures and defines.
+ *                      Added product-specific range to RAID Action values.
+
  *  --------------------------------------------------------------------------
  */
 
@@ -176,7 +180,9 @@ typedef struct _MPI2_RAID_ACTION_REQUEST
 #define MPI2_RAID_ACTION_SYSTEM_SHUTDOWN_INITIATED  (0x20)
 #define MPI2_RAID_ACTION_START_RAID_FUNCTION        (0x21)
 #define MPI2_RAID_ACTION_STOP_RAID_FUNCTION         (0x22)
-
+#define MPI2_RAID_ACTION_COMPATIBILITY_CHECK        (0x23)
+#define MPI2_RAID_ACTION_MIN_PRODUCT_SPECIFIC       (0x80)
+#define MPI2_RAID_ACTION_MAX_PRODUCT_SPECIFIC       (0xFF)
 
 /* RAID Volume Creation Structure */
 
@@ -244,6 +250,23 @@ typedef struct _MPI2_RAID_ONLINE_CAPACITY_EXPANSION
   Mpi2RaidOnlineCapacityExpansion_t,
   MPI2_POINTER pMpi2RaidOnlineCapacityExpansion_t;
 
+/* RAID Compatibility Input Structure */
+
+typedef struct _MPI2_RAID_COMPATIBILITY_INPUT_STRUCT {
+	U16                     SourceDevHandle;               /* 0x00 */
+	U16                     CandidateDevHandle;             /* 0x02 */
+	U32                     Flags;                          /* 0x04 */
+	U32                     Reserved1;                      /* 0x08 */
+	U32                     Reserved2;                      /* 0x0C */
+} MPI2_RAID_COMPATIBILITY_INPUT_STRUCT,
+MPI2_POINTER PTR_MPI2_RAID_COMPATIBILITY_INPUT_STRUCT,
+Mpi2RaidCompatibilityInputStruct_t,
+MPI2_POINTER pMpi2RaidCompatibilityInputStruct_t;
+
+/* defines for RAID Compatibility Structure Flags field */
+#define MPI2_RAID_COMPAT_SOURCE_IS_VOLUME_FLAG      (0x00000002)
+#define MPI2_RAID_COMPAT_REPORT_SOURCE_INFO_FLAG    (0x00000001)
+
 
 /* RAID Volume Indicator Structure */
 
@@ -263,15 +286,45 @@ typedef struct _MPI2_RAID_VOL_INDICATOR
 #define MPI2_RAID_VOL_FLAGS_OP_RESYNC               (0x00000003)
 #define MPI2_RAID_VOL_FLAGS_OP_MDC                  (0x00000004)
 
+/* RAID Compatibility Result Structure */
+
+typedef struct _MPI2_RAID_COMPATIBILITY_RESULT_STRUCT {
+	U8                      State;                          /* 0x00 */
+	U8                      Reserved1;                      /* 0x01 */
+	U16                     Reserved2;                      /* 0x02 */
+	U32                     GenericAttributes;              /* 0x04 */
+	U32                     OEMSpecificAttributes;          /* 0x08 */
+	U32                     Reserved3;                      /* 0x0C */
+	U32                     Reserved4;                      /* 0x10 */
+} MPI2_RAID_COMPATIBILITY_RESULT_STRUCT,
+MPI2_POINTER PTR_MPI2_RAID_COMPATIBILITY_RESULT_STRUCT,
+Mpi2RaidCompatibilityResultStruct_t,
+MPI2_POINTER pMpi2RaidCompatibilityResultStruct_t;
+
+/* defines for RAID Compatibility Result Structure State field */
+#define MPI2_RAID_COMPAT_STATE_COMPATIBLE           (0x00)
+#define MPI2_RAID_COMPAT_STATE_NOT_COMPATIBLE       (0x01)
+
+/* defines for RAID Compatibility Result Structure GenericAttributes field */
+#define MPI2_RAID_COMPAT_GENATTRIB_4K_SECTOR            (0x00000010)
+
+#define MPI2_RAID_COMPAT_GENATTRIB_MEDIA_MASK           (0x0000000C)
+#define MPI2_RAID_COMPAT_GENATTRIB_SOLID_STATE_DRIVE    (0x00000008)
+#define MPI2_RAID_COMPAT_GENATTRIB_HARD_DISK_DRIVE      (0x00000004)
+
+#define MPI2_RAID_COMPAT_GENATTRIB_PROTOCOL_MASK        (0x00000003)
+#define MPI2_RAID_COMPAT_GENATTRIB_SAS_PROTOCOL         (0x00000002)
+#define MPI2_RAID_COMPAT_GENATTRIB_SATA_PROTOCOL        (0x00000001)
 
 /* RAID Action Reply ActionData union */
 typedef union _MPI2_RAID_ACTION_REPLY_DATA
 {
-    U32                     Word[5];
-    MPI2_RAID_VOL_INDICATOR RaidVolumeIndicator;
-    U16                     VolDevHandle;
-    U8                      VolumeState;
-    U8                      PhysDiskNum;
+	U32                                     Word[5];
+	MPI2_RAID_VOL_INDICATOR                 RaidVolumeIndicator;
+	U16                                     VolDevHandle;
+	U8                                      VolumeState;
+	U8                                      PhysDiskNum;
+	MPI2_RAID_COMPATIBILITY_RESULT_STRUCT   RaidCompatibilityResult;
 } MPI2_RAID_ACTION_REPLY_DATA, MPI2_POINTER PTR_MPI2_RAID_ACTION_REPLY_DATA,
   Mpi2RaidActionReplyData_t, MPI2_POINTER pMpi2RaidActionReplyData_t;
 
diff --git a/drivers/scsi/mpt2sas/mpi/mpi2_tool.h b/drivers/scsi/mpt2sas/mpi/mpi2_tool.h
index 2a4bceda364b..3cbe677c6886 100644
--- a/drivers/scsi/mpt2sas/mpi/mpi2_tool.h
+++ b/drivers/scsi/mpt2sas/mpi/mpi2_tool.h
@@ -6,7 +6,7 @@
  *          Title:  MPI diagnostic tool structures and definitions
  *  Creation Date:  March 26, 2007
  *
- *    mpi2_tool.h Version:  02.00.06
+ *    mpi2_tool.h Version:  02.00.07
  *
  *  Version History
  *  ---------------
@@ -25,6 +25,8 @@
  *  05-12-10  02.00.05  Added Diagnostic Data Upload tool.
  *  08-11-10  02.00.06  Added defines that were missing for Diagnostic Buffer
  *                      Post Request.
+ *  05-25-11  02.00.07  Added Flags field and related defines to
+ *                      MPI2_TOOLBOX_ISTWI_READ_WRITE_REQUEST.
  *  --------------------------------------------------------------------------
  */
 
@@ -181,7 +183,7 @@ typedef struct _MPI2_TOOLBOX_ISTWI_READ_WRITE_REQUEST {
     U8                      DevIndex;                   /* 0x14 */
     U8                      Action;                     /* 0x15 */
     U8                      SGLFlags;                   /* 0x16 */
-    U8                      Reserved7;                  /* 0x17 */
+	 U8                      Flags;                      /* 0x17 */
     U16                     TxDataLength;               /* 0x18 */
     U16                     RxDataLength;               /* 0x1A */
     U32                     Reserved8;                  /* 0x1C */
@@ -205,6 +207,9 @@ typedef struct _MPI2_TOOLBOX_ISTWI_READ_WRITE_REQUEST {
 
 /* use MPI2_SGLFLAGS_ defines from mpi2.h for the SGLFlags field */
 
+/* values for the Flags field */
+#define MPI2_TOOL_ISTWI_FLAG_AUTO_RESERVE_RELEASE   (0x80)
+#define MPI2_TOOL_ISTWI_FLAG_PAGE_ADDR_MASK         (0x07)
 
 /* Toolbox ISTWI Read Write Tool reply message */
 typedef struct _MPI2_TOOLBOX_ISTWI_REPLY {
diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.c b/drivers/scsi/mpt2sas/mpt2sas_base.c
index beda04a8404b..0b2c95583660 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_base.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_base.c
@@ -57,6 +57,7 @@
 #include <linux/sort.h>
 #include <linux/io.h>
 #include <linux/time.h>
+#include <linux/kthread.h>
 #include <linux/aer.h>
 
 #include "mpt2sas_base.h"
@@ -65,6 +66,8 @@ static MPT_CALLBACK	mpt_callbacks[MPT_MAX_CALLBACKS];
 
 #define FAULT_POLLING_INTERVAL 1000 /* in milliseconds */
 
+#define MAX_HBA_QUEUE_DEPTH	30000
+#define MAX_CHAIN_DEPTH		100000
 static int max_queue_depth = -1;
 module_param(max_queue_depth, int, 0);
 MODULE_PARM_DESC(max_queue_depth, " max controller queue depth ");
@@ -89,19 +92,6 @@ static int disable_discovery = -1;
 module_param(disable_discovery, int, 0);
 MODULE_PARM_DESC(disable_discovery, " disable discovery ");
 
-
-/* diag_buffer_enable is bitwise
- * bit 0 set = TRACE
- * bit 1 set = SNAPSHOT
- * bit 2 set = EXTENDED
- *
- * Either bit can be set, or both
- */
-static int diag_buffer_enable;
-module_param(diag_buffer_enable, int, 0);
-MODULE_PARM_DESC(diag_buffer_enable, " post diag buffers "
-    "(TRACE=1/SNAPSHOT=2/EXTENDED=4/default=0)");
-
 /**
  * _scsih_set_fwfault_debug - global setting of ioc->fwfault_debug.
  *
@@ -120,10 +110,34 @@ _scsih_set_fwfault_debug(const char *val, struct kernel_param *kp)
 		ioc->fwfault_debug = mpt2sas_fwfault_debug;
 	return 0;
 }
+
 module_param_call(mpt2sas_fwfault_debug, _scsih_set_fwfault_debug,
     param_get_int, &mpt2sas_fwfault_debug, 0644);
 
 /**
+ *  mpt2sas_remove_dead_ioc_func - kthread context to remove dead ioc
+ * @arg: input argument, used to derive ioc
+ *
+ * Return 0 if controller is removed from pci subsystem.
+ * Return -1 for other case.
+ */
+static int mpt2sas_remove_dead_ioc_func(void *arg)
+{
+		struct MPT2SAS_ADAPTER *ioc = (struct MPT2SAS_ADAPTER *)arg;
+		struct pci_dev *pdev;
+
+		if ((ioc == NULL))
+			return -1;
+
+		pdev = ioc->pdev;
+		if ((pdev == NULL))
+			return -1;
+		pci_remove_bus_device(pdev);
+		return 0;
+}
+
+
+/**
  * _base_fault_reset_work - workq handling ioc fault conditions
  * @work: input argument, used to derive ioc
  * Context: sleep.
@@ -138,6 +152,7 @@ _base_fault_reset_work(struct work_struct *work)
 	unsigned long	 flags;
 	u32 doorbell;
 	int rc;
+	struct task_struct *p;
 
 	spin_lock_irqsave(&ioc->ioc_reset_in_progress_lock, flags);
 	if (ioc->shost_recovery)
@@ -145,6 +160,39 @@ _base_fault_reset_work(struct work_struct *work)
 	spin_unlock_irqrestore(&ioc->ioc_reset_in_progress_lock, flags);
 
 	doorbell = mpt2sas_base_get_iocstate(ioc, 0);
+	if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_MASK) {
+		printk(MPT2SAS_INFO_FMT "%s : SAS host is non-operational !!!!\n",
+			ioc->name, __func__);
+
+		/*
+		 * Call _scsih_flush_pending_cmds callback so that we flush all
+		 * pending commands back to OS. This call is required to aovid
+		 * deadlock at block layer. Dead IOC will fail to do diag reset,
+		 * and this call is safe since dead ioc will never return any
+		 * command back from HW.
+		 */
+		ioc->schedule_dead_ioc_flush_running_cmds(ioc);
+		/*
+		 * Set remove_host flag early since kernel thread will
+		 * take some time to execute.
+		 */
+		ioc->remove_host = 1;
+		/*Remove the Dead Host */
+		p = kthread_run(mpt2sas_remove_dead_ioc_func, ioc,
+		    "mpt2sas_dead_ioc_%d", ioc->id);
+		if (IS_ERR(p)) {
+			printk(MPT2SAS_ERR_FMT
+			"%s: Running mpt2sas_dead_ioc thread failed !!!!\n",
+			ioc->name, __func__);
+		} else {
+		    printk(MPT2SAS_ERR_FMT
+			"%s: Running mpt2sas_dead_ioc thread success !!!!\n",
+			ioc->name, __func__);
+		}
+
+		return; /* don't rearm timer */
+	}
+
 	if ((doorbell & MPI2_IOC_STATE_MASK) == MPI2_IOC_STATE_FAULT) {
 		rc = mpt2sas_base_hard_reset_handler(ioc, CAN_SLEEP,
 		    FORCE_BIG_HAMMER);
@@ -1346,7 +1394,7 @@ _base_enable_msix(struct MPT2SAS_ADAPTER *ioc)
 	if (_base_check_enable_msix(ioc) != 0)
 		goto try_ioapic;
 
-	ioc->reply_queue_count = min_t(u8, ioc->cpu_count,
+	ioc->reply_queue_count = min_t(int, ioc->cpu_count,
 	    ioc->msix_vector_count);
 
 	entries = kcalloc(ioc->reply_queue_count, sizeof(struct msix_entry),
@@ -1916,6 +1964,10 @@ _base_display_intel_branding(struct MPT2SAS_ADAPTER *ioc)
 			printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
 			    MPT2SAS_INTEL_RMS2LL040_BRANDING);
 			break;
+		case MPT2SAS_INTEL_RAMSDALE_SSDID:
+			printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
+			    MPT2SAS_INTEL_RAMSDALE_BRANDING);
+			break;
 		default:
 			break;
 		}
@@ -1925,6 +1977,22 @@ _base_display_intel_branding(struct MPT2SAS_ADAPTER *ioc)
 			printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
 			    MPT2SAS_INTEL_RS25GB008_BRANDING);
 			break;
+		case MPT2SAS_INTEL_RMS25JB080_SSDID:
+			printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
+			    MPT2SAS_INTEL_RMS25JB080_BRANDING);
+			break;
+		case MPT2SAS_INTEL_RMS25JB040_SSDID:
+			printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
+			    MPT2SAS_INTEL_RMS25JB040_BRANDING);
+			break;
+		case MPT2SAS_INTEL_RMS25KB080_SSDID:
+			printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
+			    MPT2SAS_INTEL_RMS25KB080_BRANDING);
+			break;
+		case MPT2SAS_INTEL_RMS25KB040_SSDID:
+			printk(MPT2SAS_INFO_FMT "%s\n", ioc->name,
+			    MPT2SAS_INTEL_RMS25KB040_BRANDING);
+			break;
 		default:
 			break;
 		}
@@ -2311,8 +2379,6 @@ _base_release_memory_pools(struct MPT2SAS_ADAPTER *ioc)
 		}
 		if (ioc->chain_dma_pool)
 			pci_pool_destroy(ioc->chain_dma_pool);
-	}
-	if (ioc->chain_lookup) {
 		free_pages((ulong)ioc->chain_lookup, ioc->chain_pages);
 		ioc->chain_lookup = NULL;
 	}
@@ -2330,9 +2396,7 @@ static int
 _base_allocate_memory_pools(struct MPT2SAS_ADAPTER *ioc,  int sleep_flag)
 {
 	struct mpt2sas_facts *facts;
-	u32 queue_size, queue_diff;
 	u16 max_sge_elements;
-	u16 num_of_reply_frames;
 	u16 chains_needed_per_io;
 	u32 sz, total_sz, reply_post_free_sz;
 	u32 retry_sz;
@@ -2359,7 +2423,8 @@ _base_allocate_memory_pools(struct MPT2SAS_ADAPTER *ioc,  int sleep_flag)
 		max_request_credit = (max_queue_depth < facts->RequestCredit)
 		    ? max_queue_depth : facts->RequestCredit;
 	else
-		max_request_credit = facts->RequestCredit;
+		max_request_credit = min_t(u16, facts->RequestCredit,
+		    MAX_HBA_QUEUE_DEPTH);
 
 	ioc->hba_queue_depth = max_request_credit;
 	ioc->hi_priority_depth = facts->HighPriorityCredit;
@@ -2400,50 +2465,25 @@ _base_allocate_memory_pools(struct MPT2SAS_ADAPTER *ioc,  int sleep_flag)
 	}
 	ioc->chains_needed_per_io = chains_needed_per_io;
 
-	/* reply free queue sizing - taking into account for events */
-	num_of_reply_frames = ioc->hba_queue_depth + 32;
-
-	/* number of replies frames can't be a multiple of 16 */
-	/* decrease number of reply frames by 1 */
-	if (!(num_of_reply_frames % 16))
-		num_of_reply_frames--;
-
-	/* calculate number of reply free queue entries
-	 *  (must be multiple of 16)
-	 */
-
-	/* (we know reply_free_queue_depth is not a multiple of 16) */
-	queue_size = num_of_reply_frames;
-	queue_size += 16 - (queue_size % 16);
-	ioc->reply_free_queue_depth = queue_size;
-
-	/* reply descriptor post queue sizing */
-	/* this size should be the number of request frames + number of reply
-	 * frames
-	 */
-
-	queue_size = ioc->hba_queue_depth + num_of_reply_frames + 1;
-	/* round up to 16 byte boundary */
-	if (queue_size % 16)
-		queue_size += 16 - (queue_size % 16);
-
-	/* check against IOC maximum reply post queue depth */
-	if (queue_size > facts->MaxReplyDescriptorPostQueueDepth) {
-		queue_diff = queue_size -
-		    facts->MaxReplyDescriptorPostQueueDepth;
+	/* reply free queue sizing - taking into account for 64 FW events */
+	ioc->reply_free_queue_depth = ioc->hba_queue_depth + 64;
 
-		/* round queue_diff up to multiple of 16 */
-		if (queue_diff % 16)
-			queue_diff += 16 - (queue_diff % 16);
-
-		/* adjust hba_queue_depth, reply_free_queue_depth,
-		 * and queue_size
-		 */
-		ioc->hba_queue_depth -= (queue_diff / 2);
-		ioc->reply_free_queue_depth -= (queue_diff / 2);
-		queue_size = facts->MaxReplyDescriptorPostQueueDepth;
+	/* align the reply post queue on the next 16 count boundary */
+	if (!ioc->reply_free_queue_depth % 16)
+		ioc->reply_post_queue_depth = ioc->reply_free_queue_depth + 16;
+	else
+		ioc->reply_post_queue_depth = ioc->reply_free_queue_depth +
+				32 - (ioc->reply_free_queue_depth % 16);
+	if (ioc->reply_post_queue_depth >
+	    facts->MaxReplyDescriptorPostQueueDepth) {
+		ioc->reply_post_queue_depth = min_t(u16,
+		    (facts->MaxReplyDescriptorPostQueueDepth -
+		    (facts->MaxReplyDescriptorPostQueueDepth % 16)),
+		    (ioc->hba_queue_depth - (ioc->hba_queue_depth % 16)));
+		ioc->reply_free_queue_depth = ioc->reply_post_queue_depth - 16;
+		ioc->hba_queue_depth = ioc->reply_free_queue_depth - 64;
 	}
-	ioc->reply_post_queue_depth = queue_size;
+
 
 	dinitprintk(ioc, printk(MPT2SAS_INFO_FMT "scatter gather: "
 	    "sge_in_main_msg(%d), sge_per_chain(%d), sge_per_io(%d), "
@@ -2529,15 +2569,12 @@ _base_allocate_memory_pools(struct MPT2SAS_ADAPTER *ioc,  int sleep_flag)
 	    "depth(%d)\n", ioc->name, ioc->request,
 	    ioc->scsiio_depth));
 
-	/* loop till the allocation succeeds */
-	do {
-		sz = ioc->chain_depth * sizeof(struct chain_tracker);
-		ioc->chain_pages = get_order(sz);
-		ioc->chain_lookup = (struct chain_tracker *)__get_free_pages(
-		    GFP_KERNEL, ioc->chain_pages);
-		if (ioc->chain_lookup == NULL)
-			ioc->chain_depth -= 100;
-	} while (ioc->chain_lookup == NULL);
+	ioc->chain_depth = min_t(u32, ioc->chain_depth, MAX_CHAIN_DEPTH);
+	sz = ioc->chain_depth * sizeof(struct chain_tracker);
+	ioc->chain_pages = get_order(sz);
+
+	ioc->chain_lookup = (struct chain_tracker *)__get_free_pages(
+	    GFP_KERNEL, ioc->chain_pages);
 	ioc->chain_dma_pool = pci_pool_create("chain pool", ioc->pdev,
 	    ioc->request_sz, 16, 0);
 	if (!ioc->chain_dma_pool) {
@@ -3136,8 +3173,8 @@ mpt2sas_base_sas_iounit_control(struct MPT2SAS_ADAPTER *ioc,
 	if (mpi_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET ||
 	    mpi_request->Operation == MPI2_SAS_OP_PHY_LINK_RESET)
 		ioc->ioc_link_reset_in_progress = 1;
-	mpt2sas_base_put_smid_default(ioc, smid);
 	init_completion(&ioc->base_cmds.done);
+	mpt2sas_base_put_smid_default(ioc, smid);
 	timeleft = wait_for_completion_timeout(&ioc->base_cmds.done,
 	    msecs_to_jiffies(10000));
 	if ((mpi_request->Operation == MPI2_SAS_OP_PHY_HARD_RESET ||
@@ -3238,8 +3275,8 @@ mpt2sas_base_scsi_enclosure_processor(struct MPT2SAS_ADAPTER *ioc,
 	request = mpt2sas_base_get_msg_frame(ioc, smid);
 	ioc->base_cmds.smid = smid;
 	memcpy(request, mpi_request, sizeof(Mpi2SepReply_t));
-	mpt2sas_base_put_smid_default(ioc, smid);
 	init_completion(&ioc->base_cmds.done);
+	mpt2sas_base_put_smid_default(ioc, smid);
 	timeleft = wait_for_completion_timeout(&ioc->base_cmds.done,
 	    msecs_to_jiffies(10000));
 	if (!(ioc->base_cmds.status & MPT2_CMD_COMPLETE)) {
@@ -3746,8 +3783,8 @@ _base_event_notification(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
 	for (i = 0; i < MPI2_EVENT_NOTIFY_EVENTMASK_WORDS; i++)
 		mpi_request->EventMasks[i] =
 		    cpu_to_le32(ioc->event_masks[i]);
-	mpt2sas_base_put_smid_default(ioc, smid);
 	init_completion(&ioc->base_cmds.done);
+	mpt2sas_base_put_smid_default(ioc, smid);
 	timeleft = wait_for_completion_timeout(&ioc->base_cmds.done, 30*HZ);
 	if (!(ioc->base_cmds.status & MPT2_CMD_COMPLETE)) {
 		printk(MPT2SAS_ERR_FMT "%s: timeout\n",
@@ -4062,7 +4099,8 @@ _base_make_ioc_operational(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
 		ioc->reply_free[i] = cpu_to_le32(reply_address);
 
 	/* initialize reply queues */
-	_base_assign_reply_queues(ioc);
+	if (ioc->is_driver_loading)
+		_base_assign_reply_queues(ioc);
 
 	/* initialize Reply Post Free Queue */
 	reply_post_free = (long)ioc->reply_post_free;
@@ -4110,24 +4148,17 @@ _base_make_ioc_operational(struct MPT2SAS_ADAPTER *ioc, int sleep_flag)
 
 
 	if (ioc->is_driver_loading) {
-
-
-
-		ioc->wait_for_discovery_to_complete =
-		    _base_determine_wait_on_discovery(ioc);
-		return r; /* scan_start and scan_finished support */
-	}
-
-
-	if (ioc->wait_for_discovery_to_complete && ioc->is_warpdrive) {
-		if (ioc->manu_pg10.OEMIdentifier  == 0x80) {
+		if (ioc->is_warpdrive && ioc->manu_pg10.OEMIdentifier
+		    == 0x80) {
 			hide_flag = (u8) (ioc->manu_pg10.OEMSpecificFlags0 &
 			    MFG_PAGE10_HIDE_SSDS_MASK);
 			if (hide_flag != MFG_PAGE10_HIDE_SSDS_MASK)
 				ioc->mfg_pg10_hide_flag = hide_flag;
 		}
+		ioc->wait_for_discovery_to_complete =
+		    _base_determine_wait_on_discovery(ioc);
+		return r; /* scan_start and scan_finished support */
 	}
-
 	r = _base_send_port_enable(ioc, sleep_flag);
 	if (r)
 		return r;
@@ -4206,7 +4237,7 @@ mpt2sas_base_attach(struct MPT2SAS_ADAPTER *ioc)
 
 	r = mpt2sas_base_map_resources(ioc);
 	if (r)
-		return r;
+		goto out_free_resources;
 
 	if (ioc->is_warpdrive) {
 		ioc->reply_post_host_index[0] =
diff --git a/drivers/scsi/mpt2sas/mpt2sas_base.h b/drivers/scsi/mpt2sas/mpt2sas_base.h
index 3c3babc7d260..c7459fdc06cc 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_base.h
+++ b/drivers/scsi/mpt2sas/mpt2sas_base.h
@@ -69,8 +69,8 @@
 #define MPT2SAS_DRIVER_NAME		"mpt2sas"
 #define MPT2SAS_AUTHOR	"LSI Corporation <DL-MPTFusionLinux@lsi.com>"
 #define MPT2SAS_DESCRIPTION	"LSI MPT Fusion SAS 2.0 Device Driver"
-#define MPT2SAS_DRIVER_VERSION		"10.100.00.00"
-#define MPT2SAS_MAJOR_VERSION		10
+#define MPT2SAS_DRIVER_VERSION		"12.100.00.00"
+#define MPT2SAS_MAJOR_VERSION		12
 #define MPT2SAS_MINOR_VERSION		100
 #define MPT2SAS_BUILD_VERSION		00
 #define MPT2SAS_RELEASE_VERSION		00
@@ -157,20 +157,33 @@
 /*
  * Intel HBA branding
  */
+#define MPT2SAS_INTEL_RMS25JB080_BRANDING    \
+				"Intel(R) Integrated RAID Module RMS25JB080"
+#define MPT2SAS_INTEL_RMS25JB040_BRANDING    \
+				"Intel(R) Integrated RAID Module RMS25JB040"
+#define MPT2SAS_INTEL_RMS25KB080_BRANDING    \
+				"Intel(R) Integrated RAID Module RMS25KB080"
+#define MPT2SAS_INTEL_RMS25KB040_BRANDING    \
+				"Intel(R) Integrated RAID Module RMS25KB040"
 #define MPT2SAS_INTEL_RMS2LL080_BRANDING	\
 				"Intel Integrated RAID Module RMS2LL080"
 #define MPT2SAS_INTEL_RMS2LL040_BRANDING	\
 				"Intel Integrated RAID Module RMS2LL040"
 #define MPT2SAS_INTEL_RS25GB008_BRANDING       \
 				"Intel(R) RAID Controller RS25GB008"
-
+#define MPT2SAS_INTEL_RAMSDALE_BRANDING        \
+				"Intel 720 Series SSD"
 /*
  * Intel HBA SSDIDs
  */
+#define MPT2SAS_INTEL_RMS25JB080_SSDID         0x3516
+#define MPT2SAS_INTEL_RMS25JB040_SSDID         0x3517
+#define MPT2SAS_INTEL_RMS25KB080_SSDID         0x3518
+#define MPT2SAS_INTEL_RMS25KB040_SSDID         0x3519
 #define MPT2SAS_INTEL_RMS2LL080_SSDID          0x350E
 #define MPT2SAS_INTEL_RMS2LL040_SSDID          0x350F
 #define MPT2SAS_INTEL_RS25GB008_SSDID          0x3000
-
+#define MPT2SAS_INTEL_RAMSDALE_SSDID           0x3700
 
 /*
  * HP HBA branding
@@ -373,6 +386,7 @@ struct _sas_device {
  * @percent_complete: resync percent complete
  * @direct_io_enabled: Whether direct io to PDs are allowed or not
  * @stripe_exponent: X where 2powX is the stripe sz in blocks
+ * @block_exponent: X where 2powX is the block sz in bytes
  * @max_lba: Maximum number of LBA in the volume
  * @stripe_sz: Stripe Size of the volume
  * @device_info: Device info of the volume member disk
@@ -394,6 +408,7 @@ struct _raid_device {
 	u8	percent_complete;
 	u8	direct_io_enabled;
 	u8	stripe_exponent;
+	u8	block_exponent;
 	u64	max_lba;
 	u32	stripe_sz;
 	u32	device_info;
@@ -623,6 +638,7 @@ enum mutex_type {
 	TM_MUTEX_ON = 1,
 };
 
+typedef void (*MPT2SAS_FLUSH_RUNNING_CMDS)(struct MPT2SAS_ADAPTER *ioc);
 /**
  * struct MPT2SAS_ADAPTER - per adapter struct
  * @list: ioc_list
@@ -665,6 +681,7 @@ enum mutex_type {
  * @msix_vector_count: number msix vectors
  * @cpu_msix_table: table for mapping cpus to msix index
  * @cpu_msix_table_sz: table size
+ * @schedule_dead_ioc_flush_running_cmds: callback to flush pending commands
  * @scsi_io_cb_idx: shost generated commands
  * @tm_cb_idx: task management commands
  * @scsih_cb_idx: scsih internal commands
@@ -816,6 +833,7 @@ struct MPT2SAS_ADAPTER {
 	resource_size_t	**reply_post_host_index;
 	u16		cpu_msix_table_sz;
 	u32		ioc_reset_count;
+	MPT2SAS_FLUSH_RUNNING_CMDS schedule_dead_ioc_flush_running_cmds;
 
 	/* internal commands, callback index */
 	u8		scsi_io_cb_idx;
diff --git a/drivers/scsi/mpt2sas/mpt2sas_ctl.c b/drivers/scsi/mpt2sas/mpt2sas_ctl.c
index aabcb911706e..7fceb899029e 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_ctl.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_ctl.c
@@ -818,6 +818,7 @@ _ctl_do_mpt_command(struct MPT2SAS_ADAPTER *ioc,
 	_ctl_display_some_debug(ioc, smid, "ctl_request", NULL);
 #endif
 
+	init_completion(&ioc->ctl_cmds.done);
 	switch (mpi_request->Function) {
 	case MPI2_FUNCTION_SCSI_IO_REQUEST:
 	case MPI2_FUNCTION_RAID_SCSI_IO_PASSTHROUGH:
@@ -903,7 +904,6 @@ _ctl_do_mpt_command(struct MPT2SAS_ADAPTER *ioc,
 		timeout = MPT2_IOCTL_DEFAULT_TIMEOUT;
 	else
 		timeout = karg.timeout;
-	init_completion(&ioc->ctl_cmds.done);
 	timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
 	    timeout*HZ);
 	if (mpi_request->Function == MPI2_FUNCTION_SCSI_TASK_MGMT) {
@@ -1477,8 +1477,8 @@ _ctl_diag_register_2(struct MPT2SAS_ADAPTER *ioc,
 		mpi_request->ProductSpecific[i] =
 			cpu_to_le32(ioc->product_specific[buffer_type][i]);
 
-	mpt2sas_base_put_smid_default(ioc, smid);
 	init_completion(&ioc->ctl_cmds.done);
+	mpt2sas_base_put_smid_default(ioc, smid);
 	timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
 	    MPT2_IOCTL_DEFAULT_TIMEOUT*HZ);
 
@@ -1821,8 +1821,8 @@ _ctl_send_release(struct MPT2SAS_ADAPTER *ioc, u8 buffer_type, u8 *issue_reset)
 	mpi_request->VF_ID = 0; /* TODO */
 	mpi_request->VP_ID = 0;
 
-	mpt2sas_base_put_smid_default(ioc, smid);
 	init_completion(&ioc->ctl_cmds.done);
+	mpt2sas_base_put_smid_default(ioc, smid);
 	timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
 	    MPT2_IOCTL_DEFAULT_TIMEOUT*HZ);
 
@@ -2095,8 +2095,8 @@ _ctl_diag_read_buffer(void __user *arg, enum block_state state)
 	mpi_request->VF_ID = 0; /* TODO */
 	mpi_request->VP_ID = 0;
 
-	mpt2sas_base_put_smid_default(ioc, smid);
 	init_completion(&ioc->ctl_cmds.done);
+	mpt2sas_base_put_smid_default(ioc, smid);
 	timeleft = wait_for_completion_timeout(&ioc->ctl_cmds.done,
 	    MPT2_IOCTL_DEFAULT_TIMEOUT*HZ);
 
diff --git a/drivers/scsi/mpt2sas/mpt2sas_scsih.c b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
index d570573b7963..193e33e28e49 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_scsih.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_scsih.c
@@ -99,7 +99,7 @@ MODULE_PARM_DESC(logging_level, " bits for enabling additional logging info "
 
 static ushort max_sectors = 0xFFFF;
 module_param(max_sectors, ushort, 0);
-MODULE_PARM_DESC(max_sectors, "max sectors, range 64 to 8192  default=8192");
+MODULE_PARM_DESC(max_sectors, "max sectors, range 64 to 32767  default=32767");
 
 /* scsi-mid layer global parmeter is max_report_luns, which is 511 */
 #define MPT2SAS_MAX_LUN (16895)
@@ -612,13 +612,17 @@ _scsih_sas_device_add(struct MPT2SAS_ADAPTER *ioc,
 	if (!mpt2sas_transport_port_add(ioc, sas_device->handle,
 	     sas_device->sas_address_parent)) {
 		_scsih_sas_device_remove(ioc, sas_device);
-		} else if (!sas_device->starget) {
-			if (!ioc->is_driver_loading)
-				mpt2sas_transport_port_remove(ioc,
-				sas_device->sas_address,
-			    sas_device->sas_address_parent);
-			_scsih_sas_device_remove(ioc, sas_device);
-		}
+	} else if (!sas_device->starget) {
+		/* When asyn scanning is enabled, its not possible to remove
+		 * devices while scanning is turned on due to an oops in
+		 * scsi_sysfs_add_sdev()->add_device()->sysfs_addrm_start()
+		 */
+		if (!ioc->is_driver_loading)
+			mpt2sas_transport_port_remove(ioc,
+			sas_device->sas_address,
+			sas_device->sas_address_parent);
+		_scsih_sas_device_remove(ioc, sas_device);
+	}
 }
 
 /**
@@ -1007,8 +1011,8 @@ _scsih_get_chain_buffer_tracker(struct MPT2SAS_ADAPTER *ioc, u16 smid)
 	spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
 	if (list_empty(&ioc->free_chain_list)) {
 		spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
-		printk(MPT2SAS_WARN_FMT "chain buffers not available\n",
-		    ioc->name);
+		dfailprintk(ioc, printk(MPT2SAS_WARN_FMT "chain buffers not "
+			"available\n", ioc->name));
 		return NULL;
 	}
 	chain_req = list_entry(ioc->free_chain_list.next,
@@ -1449,7 +1453,7 @@ _scsih_slave_destroy(struct scsi_device *sdev)
 		spin_lock_irqsave(&ioc->sas_device_lock, flags);
 		sas_device = mpt2sas_scsih_sas_device_find_by_sas_address(ioc,
 		   sas_target_priv_data->sas_address);
-		if (sas_device)
+		if (sas_device && !sas_target_priv_data->num_luns)
 			sas_device->starget = NULL;
 		spin_unlock_irqrestore(&ioc->sas_device_lock, flags);
 	}
@@ -1776,11 +1780,9 @@ _scsih_init_warpdrive_properties(struct MPT2SAS_ADAPTER *ioc,
 	Mpi2ConfigReply_t mpi_reply;
 	u16 sz;
 	u8 num_pds, count;
-	u64 mb = 1024 * 1024;
-	u64 tb_2 = 2 * mb * mb;
-	u64 capacity;
-	u32 stripe_sz;
-	u8 i, stripe_exp;
+	unsigned long stripe_sz, block_sz;
+	u8 stripe_exp, block_exp;
+	u64 dev_max_lba;
 
 	if (!ioc->is_warpdrive)
 		return;
@@ -1844,51 +1846,57 @@ _scsih_init_warpdrive_properties(struct MPT2SAS_ADAPTER *ioc,
 			    vol_pg0->PhysDisk[count].PhysDiskNum);
 			goto out_error;
 		}
+		/* Disable direct I/O if member drive lba exceeds 4 bytes */
+		dev_max_lba = le64_to_cpu(pd_pg0.DeviceMaxLBA);
+		if (dev_max_lba >> 32) {
+			printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is "
+			    "disabled for the drive with handle(0x%04x) member"
+			    "handle (0x%04x) unsupported max lba 0x%016llx\n",
+			    ioc->name, raid_device->handle,
+			    le16_to_cpu(pd_pg0.DevHandle),
+			    (unsigned long long)dev_max_lba);
+			goto out_error;
+		}
+
 		raid_device->pd_handle[count] = le16_to_cpu(pd_pg0.DevHandle);
 	}
 
 	/*
 	 * Assumption for WD: Direct I/O is not supported if the volume is
-	 * not RAID0, if the stripe size is not 64KB, if the block size is
-	 * not 512 and if the volume size is >2TB
+	 * not RAID0
 	 */
-	if (raid_device->volume_type != MPI2_RAID_VOL_TYPE_RAID0 ||
-	    le16_to_cpu(vol_pg0->BlockSize) != 512) {
+	if (raid_device->volume_type != MPI2_RAID_VOL_TYPE_RAID0) {
 		printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
 		    "for the drive with handle(0x%04x): type=%d, "
 		    "s_sz=%uK, blk_size=%u\n", ioc->name,
 		    raid_device->handle, raid_device->volume_type,
-		    le32_to_cpu(vol_pg0->StripeSize)/2,
+		    (le32_to_cpu(vol_pg0->StripeSize) *
+		    le16_to_cpu(vol_pg0->BlockSize)) / 1024,
 		    le16_to_cpu(vol_pg0->BlockSize));
 		goto out_error;
 	}
 
-	capacity = (u64) le16_to_cpu(vol_pg0->BlockSize) *
-	    (le64_to_cpu(vol_pg0->MaxLBA) + 1);
-
-	if (capacity > tb_2) {
+	stripe_sz = le32_to_cpu(vol_pg0->StripeSize);
+	stripe_exp = find_first_bit(&stripe_sz, 32);
+	if (stripe_exp == 32) {
 		printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
-		"for the drive with handle(0x%04x) since drive sz > 2TB\n",
-		ioc->name, raid_device->handle);
+		"for the drive with handle(0x%04x) invalid stripe sz %uK\n",
+		    ioc->name, raid_device->handle,
+		    (le32_to_cpu(vol_pg0->StripeSize) *
+		    le16_to_cpu(vol_pg0->BlockSize)) / 1024);
 		goto out_error;
 	}
-
-	stripe_sz = le32_to_cpu(vol_pg0->StripeSize);
-	stripe_exp = 0;
-	for (i = 0; i < 32; i++) {
-		if (stripe_sz & 1)
-			break;
-		stripe_exp++;
-		stripe_sz >>= 1;
-	}
-	if (i == 32) {
+	raid_device->stripe_exponent = stripe_exp;
+	block_sz = le16_to_cpu(vol_pg0->BlockSize);
+	block_exp = find_first_bit(&block_sz, 16);
+	if (block_exp == 16) {
 		printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is disabled "
-		    "for the drive with handle(0x%04x) invalid stripe sz %uK\n",
+		    "for the drive with handle(0x%04x) invalid block sz %u\n",
 		    ioc->name, raid_device->handle,
-		    le32_to_cpu(vol_pg0->StripeSize)/2);
+		    le16_to_cpu(vol_pg0->BlockSize));
 		goto out_error;
 	}
-	raid_device->stripe_exponent = stripe_exp;
+	raid_device->block_exponent = block_exp;
 	raid_device->direct_io_enabled = 1;
 
 	printk(MPT2SAS_INFO_FMT "WarpDrive : Direct IO is Enabled for the drive"
@@ -3804,8 +3812,9 @@ _scsih_setup_direct_io(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
 {
 	u32 v_lba, p_lba, stripe_off, stripe_unit, column, io_size;
 	u32 stripe_sz, stripe_exp;
-	u8 num_pds, *cdb_ptr, *tmp_ptr, *lba_ptr1, *lba_ptr2;
+	u8 num_pds, *cdb_ptr, i;
 	u8 cdb0 = scmd->cmnd[0];
+	u64 v_llba;
 
 	/*
 	 * Try Direct I/O to RAID memeber disks
@@ -3816,15 +3825,11 @@ _scsih_setup_direct_io(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
 
 		if ((cdb0 < READ_16) || !(cdb_ptr[2] | cdb_ptr[3] | cdb_ptr[4]
 			| cdb_ptr[5])) {
-			io_size = scsi_bufflen(scmd) >> 9;
+			io_size = scsi_bufflen(scmd) >>
+			    raid_device->block_exponent;
+			i = (cdb0 < READ_16) ? 2 : 6;
 			/* get virtual lba */
-			lba_ptr1 = lba_ptr2 = (cdb0 < READ_16) ? &cdb_ptr[2] :
-			    &cdb_ptr[6];
-			tmp_ptr = (u8 *)&v_lba + 3;
-			*tmp_ptr-- = *lba_ptr1++;
-			*tmp_ptr-- = *lba_ptr1++;
-			*tmp_ptr-- = *lba_ptr1++;
-			*tmp_ptr = *lba_ptr1;
+			v_lba = be32_to_cpu(*(__be32 *)(&cdb_ptr[i]));
 
 			if (((u64)v_lba + (u64)io_size - 1) <=
 			    (u32)raid_device->max_lba) {
@@ -3843,11 +3848,39 @@ _scsih_setup_direct_io(struct MPT2SAS_ADAPTER *ioc, struct scsi_cmnd *scmd,
 					mpi_request->DevHandle =
 						cpu_to_le16(raid_device->
 						    pd_handle[column]);
-					tmp_ptr = (u8 *)&p_lba + 3;
-					*lba_ptr2++ = *tmp_ptr--;
-					*lba_ptr2++ = *tmp_ptr--;
-					*lba_ptr2++ = *tmp_ptr--;
-					*lba_ptr2 = *tmp_ptr;
+					(*(__be32 *)(&cdb_ptr[i])) =
+						cpu_to_be32(p_lba);
+					/*
+					* WD: To indicate this I/O is directI/O
+					*/
+					_scsih_scsi_direct_io_set(ioc, smid, 1);
+				}
+			}
+		} else {
+			io_size = scsi_bufflen(scmd) >>
+			    raid_device->block_exponent;
+			/* get virtual lba */
+			v_llba = be64_to_cpu(*(__be64 *)(&cdb_ptr[2]));
+
+			if ((v_llba + (u64)io_size - 1) <=
+			    raid_device->max_lba) {
+				stripe_sz = raid_device->stripe_sz;
+				stripe_exp = raid_device->stripe_exponent;
+				stripe_off = (u32) (v_llba & (stripe_sz - 1));
+
+				/* Check whether IO falls within a stripe */
+				if ((stripe_off + io_size) <= stripe_sz) {
+					num_pds = raid_device->num_pds;
+					p_lba = (u32)(v_llba >> stripe_exp);
+					stripe_unit = p_lba / num_pds;
+					column = p_lba % num_pds;
+					p_lba = (stripe_unit << stripe_exp) +
+					    stripe_off;
+					mpi_request->DevHandle =
+						cpu_to_le16(raid_device->
+						    pd_handle[column]);
+					(*(__be64 *)(&cdb_ptr[2])) =
+					    cpu_to_be64((u64)p_lba);
 					/*
 					* WD: To indicate this I/O is directI/O
 					*/
@@ -4403,11 +4436,14 @@ _scsih_io_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
 		scmd->result = DID_NO_CONNECT << 16;
 		goto out;
 	}
+	ioc_status = le16_to_cpu(mpi_reply->IOCStatus);
 	/*
 	 * WARPDRIVE: If direct_io is set then it is directIO,
 	 * the failed direct I/O should be redirected to volume
 	 */
-	if (_scsih_scsi_direct_io_get(ioc, smid)) {
+	if (_scsih_scsi_direct_io_get(ioc, smid) &&
+	    ((ioc_status & MPI2_IOCSTATUS_MASK)
+	    != MPI2_IOCSTATUS_SCSI_TASK_TERMINATED)) {
 		spin_lock_irqsave(&ioc->scsi_lookup_lock, flags);
 		ioc->scsi_lookup[smid - 1].scmd = scmd;
 		spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags);
@@ -4441,7 +4477,6 @@ _scsih_io_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
 
 	xfer_cnt = le32_to_cpu(mpi_reply->TransferCount);
 	scsi_set_resid(scmd, scsi_bufflen(scmd) - xfer_cnt);
-	ioc_status = le16_to_cpu(mpi_reply->IOCStatus);
 	if (ioc_status & MPI2_IOCSTATUS_FLAG_LOG_INFO_AVAILABLE)
 		log_info =  le32_to_cpu(mpi_reply->IOCLogInfo);
 	else
@@ -4485,6 +4520,8 @@ _scsih_io_done(struct MPT2SAS_ADAPTER *ioc, u16 smid, u8 msix_index, u32 reply)
 			scmd->result = DID_TRANSPORT_DISRUPTED << 16;
 			goto out;
 		}
+		scmd->result = DID_SOFT_ERROR << 16;
+		break;
 	case MPI2_IOCSTATUS_SCSI_TASK_TERMINATED:
 	case MPI2_IOCSTATUS_SCSI_EXT_TERMINATED:
 		scmd->result = DID_RESET << 16;
@@ -6714,6 +6751,7 @@ _scsih_mark_responding_raid_device(struct MPT2SAS_ADAPTER *ioc, u64 wwid,
 			} else
 				sas_target_priv_data = NULL;
 			raid_device->responding = 1;
+			spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
 			starget_printk(KERN_INFO, raid_device->starget,
 			    "handle(0x%04x), wwid(0x%016llx)\n", handle,
 			    (unsigned long long)raid_device->wwid);
@@ -6724,16 +6762,16 @@ _scsih_mark_responding_raid_device(struct MPT2SAS_ADAPTER *ioc, u64 wwid,
 			 */
 			_scsih_init_warpdrive_properties(ioc, raid_device);
 			if (raid_device->handle == handle)
-				goto out;
+				return;
 			printk(KERN_INFO "\thandle changed from(0x%04x)!!!\n",
 			    raid_device->handle);
 			raid_device->handle = handle;
 			if (sas_target_priv_data)
 				sas_target_priv_data->handle = handle;
-			goto out;
+			return;
 		}
 	}
- out:
+
 	spin_unlock_irqrestore(&ioc->raid_device_lock, flags);
 }
 
@@ -7418,7 +7456,7 @@ static struct scsi_host_template scsih_driver_template = {
 	.can_queue			= 1,
 	.this_id			= -1,
 	.sg_tablesize			= MPT2SAS_SG_DEPTH,
-	.max_sectors			= 8192,
+	.max_sectors			= 32767,
 	.cmd_per_lun			= 7,
 	.use_clustering			= ENABLE_CLUSTERING,
 	.shost_attrs			= mpt2sas_host_attrs,
@@ -7928,6 +7966,7 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	ioc->tm_tr_volume_cb_idx = tm_tr_volume_cb_idx;
 	ioc->tm_sas_control_cb_idx = tm_sas_control_cb_idx;
 	ioc->logging_level = logging_level;
+	ioc->schedule_dead_ioc_flush_running_cmds = &_scsih_flush_running_cmds;
 	/* misc semaphores and spin locks */
 	mutex_init(&ioc->reset_in_progress_mutex);
 	spin_lock_init(&ioc->ioc_reset_in_progress_lock);
@@ -7958,11 +7997,11 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 			printk(MPT2SAS_WARN_FMT "Invalid value %d passed "
 			    "for max_sectors, range is 64 to 8192. Assigning "
 			    "value of 64.\n", ioc->name, max_sectors);
-		} else if (max_sectors > 8192) {
-			shost->max_sectors = 8192;
+		} else if (max_sectors > 32767) {
+			shost->max_sectors = 32767;
 			printk(MPT2SAS_WARN_FMT "Invalid value %d passed "
 			    "for max_sectors, range is 64 to 8192. Assigning "
-			    "default value of 8192.\n", ioc->name,
+			    "default value of 32767.\n", ioc->name,
 			    max_sectors);
 		} else {
 			shost->max_sectors = max_sectors & 0xFFFE;
@@ -8000,7 +8039,6 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		goto out_attach_fail;
 	}
 
-	scsi_scan_host(shost);
 	if (ioc->is_warpdrive) {
 		if (ioc->mfg_pg10_hide_flag ==  MFG_PAGE10_EXPOSE_ALL_DISKS)
 			ioc->hide_drives = 0;
@@ -8014,8 +8052,8 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 		}
 	} else
 		ioc->hide_drives = 0;
+	scsi_scan_host(shost);
 
-	_scsih_probe_devices(ioc);
 	return 0;
 
  out_attach_fail:
diff --git a/drivers/scsi/mpt2sas/mpt2sas_transport.c b/drivers/scsi/mpt2sas/mpt2sas_transport.c
index 230732241aa2..831047466a5a 100644
--- a/drivers/scsi/mpt2sas/mpt2sas_transport.c
+++ b/drivers/scsi/mpt2sas/mpt2sas_transport.c
@@ -398,8 +398,8 @@ _transport_expander_report_manufacture(struct MPT2SAS_ADAPTER *ioc,
 	dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT "report_manufacture - "
 	    "send to sas_addr(0x%016llx)\n", ioc->name,
 	    (unsigned long long)sas_address));
-	mpt2sas_base_put_smid_default(ioc, smid);
 	init_completion(&ioc->transport_cmds.done);
+	mpt2sas_base_put_smid_default(ioc, smid);
 	timeleft = wait_for_completion_timeout(&ioc->transport_cmds.done,
 	    10*HZ);
 
@@ -1184,8 +1184,8 @@ _transport_get_expander_phy_error_log(struct MPT2SAS_ADAPTER *ioc,
 	dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT "phy_error_log - "
 	    "send to sas_addr(0x%016llx), phy(%d)\n", ioc->name,
 	    (unsigned long long)phy->identify.sas_address, phy->number));
-	mpt2sas_base_put_smid_default(ioc, smid);
 	init_completion(&ioc->transport_cmds.done);
+	mpt2sas_base_put_smid_default(ioc, smid);
 	timeleft = wait_for_completion_timeout(&ioc->transport_cmds.done,
 	    10*HZ);
 
@@ -1509,8 +1509,9 @@ _transport_expander_phy_control(struct MPT2SAS_ADAPTER *ioc,
 	    "send to sas_addr(0x%016llx), phy(%d), opcode(%d)\n", ioc->name,
 	    (unsigned long long)phy->identify.sas_address, phy->number,
 	    phy_operation));
-	mpt2sas_base_put_smid_default(ioc, smid);
+
 	init_completion(&ioc->transport_cmds.done);
+	mpt2sas_base_put_smid_default(ioc, smid);
 	timeleft = wait_for_completion_timeout(&ioc->transport_cmds.done,
 	    10*HZ);
 
@@ -1949,8 +1950,8 @@ _transport_smp_handler(struct Scsi_Host *shost, struct sas_rphy *rphy,
 	dtransportprintk(ioc, printk(MPT2SAS_INFO_FMT "%s - "
 	    "sending smp request\n", ioc->name, __func__));
 
-	mpt2sas_base_put_smid_default(ioc, smid);
 	init_completion(&ioc->transport_cmds.done);
+	mpt2sas_base_put_smid_default(ioc, smid);
 	timeleft = wait_for_completion_timeout(&ioc->transport_cmds.done,
 	    10*HZ);
 
diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index 6465dae5883a..a2f1b3043dfb 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -107,7 +107,7 @@ qla2x00_sysfs_write_fw_dump(struct file *filp, struct kobject *kobj,
 			set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags);
 		break;
 	}
-	return -EINVAL;
+	return count;
 }
 
 static struct bin_attribute sysfs_fw_dump_attr = {
@@ -387,7 +387,7 @@ qla2x00_sysfs_write_optrom_ctl(struct file *filp, struct kobject *kobj,
 		break;
 	case 3:
 		if (ha->optrom_state != QLA_SWRITING)
-			return -ENOMEM;
+			return -EINVAL;
 
 		if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
 			ql_log(ql_log_warn, vha, 0x7068,
@@ -667,7 +667,7 @@ qla2x00_sysfs_write_edc(struct file *filp, struct kobject *kobj,
 	    dev, adr, len, opt);
 	if (rval != QLA_SUCCESS) {
 		ql_log(ql_log_warn, vha, 0x7074,
-		    "Unable to write EDC (%x) %02x:%04x:%02x:%02hhx\n",
+		    "Unable to write EDC (%x) %02x:%04x:%02x:%02x:%02hhx\n",
 		    rval, dev, adr, opt, len, buf[8]);
 		return -EIO;
 	}
@@ -724,7 +724,7 @@ qla2x00_sysfs_write_edc_status(struct file *filp, struct kobject *kobj,
 			dev, adr, len, opt);
 	if (rval != QLA_SUCCESS) {
 		ql_log(ql_log_info, vha, 0x7075,
-		    "Unable to write EDC status (%x) %02x:%04x:%02x.\n",
+		    "Unable to write EDC status (%x) %02x:%04x:%02x:%02x.\n",
 		    rval, dev, adr, opt, len);
 		return -EIO;
 	}
@@ -1971,8 +1971,8 @@ qla24xx_vport_delete(struct fc_vport *fc_vport)
 			    "Queue delete failed.\n");
 	}
 
-	scsi_host_put(vha->host);
 	ql_log(ql_log_info, vha, 0x7088, "VP[%d] deleted.\n", id);
+	scsi_host_put(vha->host);
 	return 0;
 }
 
diff --git a/drivers/scsi/qla2xxx/qla_bsg.c b/drivers/scsi/qla2xxx/qla_bsg.c
index 8b641a8a0c74..b1d0f936bf2d 100644
--- a/drivers/scsi/qla2xxx/qla_bsg.c
+++ b/drivers/scsi/qla2xxx/qla_bsg.c
@@ -31,6 +31,7 @@ qla2x00_get_ctx_bsg_sp(scsi_qla_host_t *vha, fc_port_t *fcport, size_t size)
 	memset(sp, 0, sizeof(*sp));
 	sp->fcport = fcport;
 	sp->ctx = ctx;
+	ctx->iocbs = 1;
 done:
 	return sp;
 }
@@ -102,7 +103,7 @@ qla24xx_proc_fcp_prio_cfg_cmd(struct fc_bsg_job *bsg_job)
 
 	bsg_job->reply->reply_payload_rcv_len = 0;
 
-	if (!(IS_QLA24XX_TYPE(ha) || IS_QLA25XX(ha))) {
+	if (!(IS_QLA24XX_TYPE(ha) || IS_QLA25XX(ha) || IS_QLA82XX(ha))) {
 		ret = -EINVAL;
 		goto exit_fcp_prio_cfg;
 	}
@@ -389,6 +390,20 @@ done:
 	return rval;
 }
 
+inline uint16_t
+qla24xx_calc_ct_iocbs(uint16_t dsds)
+{
+	uint16_t iocbs;
+
+	iocbs = 1;
+	if (dsds > 2) {
+		iocbs += (dsds - 2) / 5;
+		if ((dsds - 2) % 5)
+			iocbs++;
+	}
+	return iocbs;
+}
+
 static int
 qla2x00_process_ct(struct fc_bsg_job *bsg_job)
 {
@@ -489,6 +504,7 @@ qla2x00_process_ct(struct fc_bsg_job *bsg_job)
 	ct = sp->ctx;
 	ct->type = SRB_CT_CMD;
 	ct->name = "bsg_ct";
+	ct->iocbs = qla24xx_calc_ct_iocbs(req_sg_cnt + rsp_sg_cnt);
 	ct->u.bsg_job = bsg_job;
 
 	ql_dbg(ql_dbg_user, vha, 0x7016,
@@ -1653,7 +1669,7 @@ qla24xx_bsg_request(struct fc_bsg_job *bsg_job)
 	}
 
 	ql_dbg(ql_dbg_user, vha, 0x7000,
-	    "Entered %s msgcode=%d.\n", __func__, bsg_job->request->msgcode);
+	    "Entered %s msgcode=0x%x.\n", __func__, bsg_job->request->msgcode);
 
 	switch (bsg_job->request->msgcode) {
 	case FC_BSG_RPT_ELS:
diff --git a/drivers/scsi/qla2xxx/qla_dbg.c b/drivers/scsi/qla2xxx/qla_dbg.c
index f3cddd5800c3..7c54624b5b13 100644
--- a/drivers/scsi/qla2xxx/qla_dbg.c
+++ b/drivers/scsi/qla2xxx/qla_dbg.c
@@ -11,15 +11,17 @@
  * ----------------------------------------------------------------------
  * |             Level            |   Last Value Used  |     Holes	|
  * ----------------------------------------------------------------------
- * | Module Init and Probe        |       0x0116       |  		|
+ * | Module Init and Probe        |       0x0116       | 0xfa           |
  * | Mailbox commands             |       0x112b       |		|
- * | Device Discovery             |       0x2083       |		|
- * | Queue Command and IO tracing |       0x302e       |     0x3008     |
+ * | Device Discovery             |       0x2084       |		|
+ * | Queue Command and IO tracing |       0x302f       | 0x3008,0x302d, |
+ * |                              |                    | 0x302e         |
  * | DPC Thread                   |       0x401c       |		|
- * | Async Events                 |       0x5059       |		|
- * | Timer Routines               |       0x6010       | 0x600e,0x600f  |
- * | User Space Interactions      |       0x709d       |		|
- * | Task Management              |       0x8041       | 0x800b         |
+ * | Async Events                 |       0x5057       | 0x5052		|
+ * | Timer Routines               |       0x6011       | 0x600e,0x600f  |
+ * | User Space Interactions      |       0x709e       |		|
+ * | Task Management              |       0x803c       | 0x8025-0x8026  |
+ * |                              |                    | 0x800b,0x8039  |
  * | AER/EEH                      |       0x900f       |		|
  * | Virtual Port                 |       0xa007       |		|
  * | ISP82XX Specific             |       0xb052       |    		|
@@ -368,7 +370,7 @@ qla25xx_copy_fce(struct qla_hw_data *ha, void *ptr, uint32_t **last_chain)
 
 	memcpy(iter_reg, ha->fce, ntohl(fcec->size));
 
-	return iter_reg;
+	return (char *)iter_reg + ntohl(fcec->size);
 }
 
 static inline void *
@@ -1650,6 +1652,15 @@ qla81xx_fw_dump_failed:
 /****************************************************************************/
 /*                         Driver Debug Functions.                          */
 /****************************************************************************/
+
+static inline int
+ql_mask_match(uint32_t level)
+{
+	if (ql2xextended_error_logging == 1)
+		ql2xextended_error_logging = QL_DBG_DEFAULT1_MASK;
+	return (level & ql2xextended_error_logging) == level;
+}
+
 /*
  * This function is for formatting and logging debug information.
  * It is to be used when vha is available. It formats the message
@@ -1664,34 +1675,31 @@ qla81xx_fw_dump_failed:
  * msg:   The message to be displayed.
  */
 void
-ql_dbg(uint32_t level, scsi_qla_host_t *vha, int32_t id, char *msg, ...) {
-
-	char pbuf[QL_DBG_BUF_LEN];
-	va_list ap;
-	uint32_t len;
-	struct pci_dev *pdev = NULL;
-
-	memset(pbuf, 0, QL_DBG_BUF_LEN);
-
-	va_start(ap, msg);
-
-	if ((level & ql2xextended_error_logging) == level) {
-		if (vha != NULL) {
-			pdev = vha->hw->pdev;
-			/* <module-name> <pci-name> <msg-id>:<host> Message */
-			sprintf(pbuf, "%s [%s]-%04x:%ld: ", QL_MSGHDR,
-			    dev_name(&(pdev->dev)), id + ql_dbg_offset,
-			    vha->host_no);
-		} else
-			sprintf(pbuf, "%s [%s]-%04x: : ", QL_MSGHDR,
-			    "0000:00:00.0", id + ql_dbg_offset);
-
-		len = strlen(pbuf);
-		vsprintf(pbuf+len, msg, ap);
-		pr_warning("%s", pbuf);
+ql_dbg(uint32_t level, scsi_qla_host_t *vha, int32_t id, const char *fmt, ...)
+{
+	va_list va;
+	struct va_format vaf;
+
+	if (!ql_mask_match(level))
+		return;
+
+	va_start(va, fmt);
+
+	vaf.fmt = fmt;
+	vaf.va = &va;
+
+	if (vha != NULL) {
+		const struct pci_dev *pdev = vha->hw->pdev;
+		/* <module-name> <pci-name> <msg-id>:<host> Message */
+		pr_warn("%s [%s]-%04x:%ld: %pV",
+			QL_MSGHDR, dev_name(&(pdev->dev)), id + ql_dbg_offset,
+			vha->host_no, &vaf);
+	} else {
+		pr_warn("%s [%s]-%04x: : %pV",
+			QL_MSGHDR, "0000:00:00.0", id + ql_dbg_offset, &vaf);
 	}
 
-	va_end(ap);
+	va_end(va);
 
 }
 
@@ -1710,31 +1718,27 @@ ql_dbg(uint32_t level, scsi_qla_host_t *vha, int32_t id, char *msg, ...) {
  * msg:   The message to be displayed.
  */
 void
-ql_dbg_pci(uint32_t level, struct pci_dev *pdev, int32_t id, char *msg, ...) {
-
-	char pbuf[QL_DBG_BUF_LEN];
-	va_list ap;
-	uint32_t len;
+ql_dbg_pci(uint32_t level, struct pci_dev *pdev, int32_t id,
+	   const char *fmt, ...)
+{
+	va_list va;
+	struct va_format vaf;
 
 	if (pdev == NULL)
 		return;
+	if (!ql_mask_match(level))
+		return;
 
-	memset(pbuf, 0, QL_DBG_BUF_LEN);
-
-	va_start(ap, msg);
-
-	if ((level & ql2xextended_error_logging) == level) {
-		/* <module-name> <dev-name>:<msg-id> Message */
-		sprintf(pbuf, "%s [%s]-%04x: : ", QL_MSGHDR,
-		    dev_name(&(pdev->dev)), id + ql_dbg_offset);
+	va_start(va, fmt);
 
-		len = strlen(pbuf);
-		vsprintf(pbuf+len, msg, ap);
-		pr_warning("%s", pbuf);
-	}
+	vaf.fmt = fmt;
+	vaf.va = &va;
 
-	va_end(ap);
+	/* <module-name> <dev-name>:<msg-id> Message */
+	pr_warn("%s [%s]-%04x: : %pV",
+		QL_MSGHDR, dev_name(&(pdev->dev)), id + ql_dbg_offset, &vaf);
 
+	va_end(va);
 }
 
 /*
@@ -1751,47 +1755,47 @@ ql_dbg_pci(uint32_t level, struct pci_dev *pdev, int32_t id, char *msg, ...) {
  * msg:   The message to be displayed.
  */
 void
-ql_log(uint32_t level, scsi_qla_host_t *vha, int32_t id, char *msg, ...) {
-
-	char pbuf[QL_DBG_BUF_LEN];
-	va_list ap;
-	uint32_t len;
-	struct pci_dev *pdev = NULL;
-
-	memset(pbuf, 0, QL_DBG_BUF_LEN);
-
-	va_start(ap, msg);
-
-	if (level <= ql_errlev) {
-		if (vha != NULL) {
-			pdev = vha->hw->pdev;
-			/* <module-name> <msg-id>:<host> Message */
-			sprintf(pbuf, "%s [%s]-%04x:%ld: ", QL_MSGHDR,
-			    dev_name(&(pdev->dev)), id, vha->host_no);
-		} else
-			sprintf(pbuf, "%s [%s]-%04x: : ", QL_MSGHDR,
-			    "0000:00:00.0", id);
+ql_log(uint32_t level, scsi_qla_host_t *vha, int32_t id, const char *fmt, ...)
+{
+	va_list va;
+	struct va_format vaf;
+	char pbuf[128];
 
-		len = strlen(pbuf);
-			vsprintf(pbuf+len, msg, ap);
+	if (level > ql_errlev)
+		return;
 
-		switch (level) {
-		case 0: /* FATAL LOG */
-			pr_crit("%s", pbuf);
-			break;
-		case 1:
-			pr_err("%s", pbuf);
-			break;
-		case 2:
-			pr_warn("%s", pbuf);
-			break;
-		default:
-			pr_info("%s", pbuf);
-			break;
-		}
+	if (vha != NULL) {
+		const struct pci_dev *pdev = vha->hw->pdev;
+		/* <module-name> <msg-id>:<host> Message */
+		snprintf(pbuf, sizeof(pbuf), "%s [%s]-%04x:%ld: ",
+			QL_MSGHDR, dev_name(&(pdev->dev)), id, vha->host_no);
+	} else {
+		snprintf(pbuf, sizeof(pbuf), "%s [%s]-%04x: : ",
+			QL_MSGHDR, "0000:00:00.0", id);
+	}
+	pbuf[sizeof(pbuf) - 1] = 0;
+
+	va_start(va, fmt);
+
+	vaf.fmt = fmt;
+	vaf.va = &va;
+
+	switch (level) {
+	case 0: /* FATAL LOG */
+		pr_crit("%s%pV", pbuf, &vaf);
+		break;
+	case 1:
+		pr_err("%s%pV", pbuf, &vaf);
+		break;
+	case 2:
+		pr_warn("%s%pV", pbuf, &vaf);
+		break;
+	default:
+		pr_info("%s%pV", pbuf, &vaf);
+		break;
 	}
 
-	va_end(ap);
+	va_end(va);
 }
 
 /*
@@ -1809,43 +1813,44 @@ ql_log(uint32_t level, scsi_qla_host_t *vha, int32_t id, char *msg, ...) {
  * msg:   The message to be displayed.
  */
 void
-ql_log_pci(uint32_t level, struct pci_dev *pdev, int32_t id, char *msg, ...) {
-
-	char pbuf[QL_DBG_BUF_LEN];
-	va_list ap;
-	uint32_t len;
+ql_log_pci(uint32_t level, struct pci_dev *pdev, int32_t id,
+	   const char *fmt, ...)
+{
+	va_list va;
+	struct va_format vaf;
+	char pbuf[128];
 
 	if (pdev == NULL)
 		return;
+	if (level > ql_errlev)
+		return;
 
-	memset(pbuf, 0, QL_DBG_BUF_LEN);
-
-	va_start(ap, msg);
-
-	if (level <= ql_errlev) {
-		/* <module-name> <dev-name>:<msg-id> Message */
-		sprintf(pbuf, "%s [%s]-%04x: : ", QL_MSGHDR,
-		    dev_name(&(pdev->dev)), id);
-
-		len = strlen(pbuf);
-		vsprintf(pbuf+len, msg, ap);
-		switch (level) {
-		case 0: /* FATAL LOG */
-			pr_crit("%s", pbuf);
-			break;
-		case 1:
-			pr_err("%s", pbuf);
-			break;
-		case 2:
-			pr_warn("%s", pbuf);
-			break;
-		default:
-			pr_info("%s", pbuf);
-			break;
-		}
+	/* <module-name> <dev-name>:<msg-id> Message */
+	snprintf(pbuf, sizeof(pbuf), "%s [%s]-%04x: : ",
+		 QL_MSGHDR, dev_name(&(pdev->dev)), id);
+	pbuf[sizeof(pbuf) - 1] = 0;
+
+	va_start(va, fmt);
+
+	vaf.fmt = fmt;
+	vaf.va = &va;
+
+	switch (level) {
+	case 0: /* FATAL LOG */
+		pr_crit("%s%pV", pbuf, &vaf);
+		break;
+	case 1:
+		pr_err("%s%pV", pbuf, &vaf);
+		break;
+	case 2:
+		pr_warn("%s%pV", pbuf, &vaf);
+		break;
+	default:
+		pr_info("%s%pV", pbuf, &vaf);
+		break;
 	}
 
-	va_end(ap);
+	va_end(va);
 }
 
 void
@@ -1858,20 +1863,20 @@ ql_dump_regs(uint32_t level, scsi_qla_host_t *vha, int32_t id)
 	struct device_reg_82xx __iomem *reg82 = &ha->iobase->isp82;
 	uint16_t __iomem *mbx_reg;
 
-	if ((level & ql2xextended_error_logging) == level) {
-
-		if (IS_QLA82XX(ha))
-			mbx_reg = &reg82->mailbox_in[0];
-		else if (IS_FWI2_CAPABLE(ha))
-			mbx_reg = &reg24->mailbox0;
-		else
-			mbx_reg = MAILBOX_REG(ha, reg, 0);
+	if (!ql_mask_match(level))
+		return;
 
-		ql_dbg(level, vha, id, "Mailbox registers:\n");
-		for (i = 0; i < 6; i++)
-			ql_dbg(level, vha, id,
-			    "mbox[%d] 0x%04x\n", i, RD_REG_WORD(mbx_reg++));
-	}
+	if (IS_QLA82XX(ha))
+		mbx_reg = &reg82->mailbox_in[0];
+	else if (IS_FWI2_CAPABLE(ha))
+		mbx_reg = &reg24->mailbox0;
+	else
+		mbx_reg = MAILBOX_REG(ha, reg, 0);
+
+	ql_dbg(level, vha, id, "Mailbox registers:\n");
+	for (i = 0; i < 6; i++)
+		ql_dbg(level, vha, id,
+		    "mbox[%d] 0x%04x\n", i, RD_REG_WORD(mbx_reg++));
 }
 
 
@@ -1881,24 +1886,25 @@ ql_dump_buffer(uint32_t level, scsi_qla_host_t *vha, int32_t id,
 {
 	uint32_t cnt;
 	uint8_t c;
-	if ((level & ql2xextended_error_logging) == level) {
-
-		ql_dbg(level, vha, id, " 0   1   2   3   4   5   6   7   8   "
-		    "9  Ah  Bh  Ch  Dh  Eh  Fh\n");
-		ql_dbg(level, vha, id, "----------------------------------"
-		    "----------------------------\n");
-
-		ql_dbg(level, vha, id, "");
-		for (cnt = 0; cnt < size;) {
-			c = *b++;
-			printk("%02x", (uint32_t) c);
-			cnt++;
-			if (!(cnt % 16))
-				printk("\n");
-			else
-				printk("  ");
-		}
-		if (cnt % 16)
-			ql_dbg(level, vha, id, "\n");
+
+	if (!ql_mask_match(level))
+		return;
+
+	ql_dbg(level, vha, id, " 0   1   2   3   4   5   6   7   8   "
+	    "9  Ah  Bh  Ch  Dh  Eh  Fh\n");
+	ql_dbg(level, vha, id, "----------------------------------"
+	    "----------------------------\n");
+
+	ql_dbg(level, vha, id, " ");
+	for (cnt = 0; cnt < size;) {
+		c = *b++;
+		printk("%02x", (uint32_t) c);
+		cnt++;
+		if (!(cnt % 16))
+			printk("\n");
+		else
+			printk("  ");
 	}
+	if (cnt % 16)
+		ql_dbg(level, vha, id, "\n");
 }
diff --git a/drivers/scsi/qla2xxx/qla_dbg.h b/drivers/scsi/qla2xxx/qla_dbg.h
index 98a377b99017..5f1b6d9c3dcb 100644
--- a/drivers/scsi/qla2xxx/qla_dbg.h
+++ b/drivers/scsi/qla2xxx/qla_dbg.h
@@ -232,6 +232,7 @@ struct qla2xxx_fw_dump {
 };
 
 #define QL_MSGHDR "qla2xxx"
+#define QL_DBG_DEFAULT1_MASK    0x1e400000
 
 #define ql_log_fatal		0 /* display fatal errors */
 #define ql_log_warn		1 /* display critical errors */
@@ -244,15 +245,15 @@ struct qla2xxx_fw_dump {
 
 extern int ql_errlev;
 
-void
-ql_dbg(uint32_t, scsi_qla_host_t *vha, int32_t, char *, ...);
-void
-ql_dbg_pci(uint32_t, struct pci_dev *pdev, int32_t, char *, ...);
+void __attribute__((format (printf, 4, 5)))
+ql_dbg(uint32_t, scsi_qla_host_t *vha, int32_t, const char *fmt, ...);
+void __attribute__((format (printf, 4, 5)))
+ql_dbg_pci(uint32_t, struct pci_dev *pdev, int32_t, const char *fmt, ...);
 
-void
-ql_log(uint32_t, scsi_qla_host_t *vha, int32_t, char *, ...);
-void
-ql_log_pci(uint32_t, struct pci_dev *pdev, int32_t, char *, ...);
+void __attribute__((format (printf, 4, 5)))
+ql_log(uint32_t, scsi_qla_host_t *vha, int32_t, const char *fmt, ...);
+void __attribute__((format (printf, 4, 5)))
+ql_log_pci(uint32_t, struct pci_dev *pdev, int32_t, const char *fmt, ...);
 
 /* Debug Levels */
 /* The 0x40000000 is the max value any debug level can have
@@ -275,5 +276,3 @@ ql_log_pci(uint32_t, struct pci_dev *pdev, int32_t, char *, ...);
 #define ql_dbg_misc	0x00010000 /* For dumping everything that is not
 				    * not covered by upper categories
 				    */
-
-#define QL_DBG_BUF_LEN	512
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index fcf052c50bf5..a6a4eebce4a8 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -271,6 +271,7 @@ struct srb_iocb {
 struct srb_ctx {
 	uint16_t type;
 	char *name;
+	int iocbs;
 	union {
 		struct srb_iocb *iocb_cmd;
 		struct fc_bsg_job *bsg_job;
@@ -2244,6 +2245,7 @@ struct isp_operations {
 	int (*get_flash_version) (struct scsi_qla_host *, void *);
 	int (*start_scsi) (srb_t *);
 	int (*abort_isp) (struct scsi_qla_host *);
+	int (*iospace_config)(struct qla_hw_data*);
 };
 
 /* MSI-X Support *************************************************************/
@@ -2978,10 +2980,6 @@ typedef struct scsi_qla_host {
 	atomic_dec(&__vha->vref_count);			     \
 } while (0)
 
-
-#define qla_printk(level, ha, format, arg...) \
-	dev_printk(level , &((ha)->pdev->dev) , format , ## arg)
-
 /*
  * qla2x00 local function return status codes
  */
diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h
index c0c11afb685c..408679be8fdf 100644
--- a/drivers/scsi/qla2xxx/qla_gbl.h
+++ b/drivers/scsi/qla2xxx/qla_gbl.h
@@ -572,7 +572,7 @@ extern void qla2x00_set_model_info(scsi_qla_host_t *, uint8_t *,
     size_t, char *);
 extern int qla82xx_mbx_intr_enable(scsi_qla_host_t *);
 extern int qla82xx_mbx_intr_disable(scsi_qla_host_t *);
-extern void qla82xx_start_iocbs(srb_t *);
+extern void qla82xx_start_iocbs(scsi_qla_host_t *);
 extern int qla82xx_fcoe_ctx_reset(scsi_qla_host_t *);
 extern int qla82xx_check_md_needed(scsi_qla_host_t *);
 extern void qla82xx_chip_reset_cleanup(scsi_qla_host_t *);
diff --git a/drivers/scsi/qla2xxx/qla_gs.c b/drivers/scsi/qla2xxx/qla_gs.c
index 37937aa3c3b8..4aea4ae23300 100644
--- a/drivers/scsi/qla2xxx/qla_gs.c
+++ b/drivers/scsi/qla2xxx/qla_gs.c
@@ -758,7 +758,7 @@ qla2x00_sns_ga_nxt(scsi_qla_host_t *vha, fc_port_t *fcport)
 		    "GA_NXT Send SNS failed (%d).\n", rval);
 	} else if (sns_cmd->p.gan_data[8] != 0x80 ||
 	    sns_cmd->p.gan_data[9] != 0x02) {
-		ql_dbg(ql_dbg_disc + ql_dbg_buffer, vha, 0x207d,
+		ql_dbg(ql_dbg_disc + ql_dbg_buffer, vha, 0x2084,
 		    "GA_NXT failed, rejected request ga_nxt_rsp:\n");
 		ql_dump_buffer(ql_dbg_disc + ql_dbg_buffer, vha, 0x2074,
 		    sns_cmd->p.gan_data, 16);
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 54ea68cec4c5..1fa067e053d2 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -111,6 +111,7 @@ qla2x00_get_ctx_sp(scsi_qla_host_t *vha, fc_port_t *fcport, size_t size,
 	memset(sp, 0, sizeof(*sp));
 	sp->fcport = fcport;
 	sp->ctx = ctx;
+	ctx->iocbs = 1;
 	ctx->u.iocb_cmd = iocb;
 	iocb->free = qla2x00_ctx_sp_free;
 
@@ -154,8 +155,8 @@ qla2x00_async_iocb_timeout(srb_t *sp)
 	struct srb_ctx *ctx = sp->ctx;
 
 	ql_dbg(ql_dbg_disc, fcport->vha, 0x2071,
-	    "Async-%s timeout - portid=%02x%02x%02x.\n",
-	    ctx->name, fcport->d_id.b.domain, fcport->d_id.b.area,
+	    "Async-%s timeout - hdl=%x portid=%02x%02x%02x.\n",
+	    ctx->name, sp->handle, fcport->d_id.b.domain, fcport->d_id.b.area,
 	    fcport->d_id.b.al_pa);
 
 	fcport->flags &= ~FCF_ASYNC_SENT;
@@ -211,9 +212,10 @@ qla2x00_async_login(struct scsi_qla_host *vha, fc_port_t *fcport,
 		goto done_free_sp;
 
 	ql_dbg(ql_dbg_disc, vha, 0x2072,
-	    "Async-login - loopid=%x portid=%02x%02x%02x retries=%d.\n",
-	    fcport->loop_id, fcport->d_id.b.domain, fcport->d_id.b.area,
-	    fcport->d_id.b.al_pa, fcport->login_retry);
+	    "Async-login - hdl=%x, loopid=%x portid=%02x%02x%02x "
+	    "retries=%d.\n", sp->handle, fcport->loop_id,
+	    fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
+	    fcport->login_retry);
 	return rval;
 
 done_free_sp:
@@ -258,9 +260,9 @@ qla2x00_async_logout(struct scsi_qla_host *vha, fc_port_t *fcport)
 		goto done_free_sp;
 
 	ql_dbg(ql_dbg_disc, vha, 0x2070,
-	    "Async-logout - loop-id=%x portid=%02x%02x%02x.\n",
-	    fcport->loop_id, fcport->d_id.b.domain, fcport->d_id.b.area,
-	    fcport->d_id.b.al_pa);
+	    "Async-logout - hdl=%x loop-id=%x portid=%02x%02x%02x.\n",
+	    sp->handle, fcport->loop_id, fcport->d_id.b.domain,
+	    fcport->d_id.b.area, fcport->d_id.b.al_pa);
 	return rval;
 
 done_free_sp:
@@ -308,9 +310,9 @@ qla2x00_async_adisc(struct scsi_qla_host *vha, fc_port_t *fcport,
 		goto done_free_sp;
 
 	ql_dbg(ql_dbg_disc, vha, 0x206f,
-	    "Async-adisc - loopid=%x portid=%02x%02x%02x.\n",
-	    fcport->loop_id, fcport->d_id.b.domain, fcport->d_id.b.area,
-	    fcport->d_id.b.al_pa);
+	    "Async-adisc - hdl=%x loopid=%x portid=%02x%02x%02x.\n",
+	    sp->handle, fcport->loop_id, fcport->d_id.b.domain,
+	    fcport->d_id.b.area, fcport->d_id.b.al_pa);
 	return rval;
 
 done_free_sp:
@@ -360,9 +362,9 @@ qla2x00_async_tm_cmd(fc_port_t *fcport, uint32_t flags, uint32_t lun,
 		goto done_free_sp;
 
 	ql_dbg(ql_dbg_taskm, vha, 0x802f,
-	    "Async-tmf loop-id=%x portid=%02x%02x%02x.\n",
-	    fcport->loop_id, fcport->d_id.b.domain, fcport->d_id.b.area,
-	    fcport->d_id.b.al_pa);
+	    "Async-tmf hdl=%x loop-id=%x portid=%02x%02x%02x.\n",
+	    sp->handle, fcport->loop_id, fcport->d_id.b.domain,
+	    fcport->d_id.b.area, fcport->d_id.b.al_pa);
 	return rval;
 
 done_free_sp:
@@ -514,7 +516,7 @@ qla2x00_initialize_adapter(scsi_qla_host_t *vha)
 	set_bit(0, ha->req_qid_map);
 	set_bit(0, ha->rsp_qid_map);
 
-	ql_log(ql_log_info, vha, 0x0040,
+	ql_dbg(ql_dbg_init, vha, 0x0040,
 	    "Configuring PCI space...\n");
 	rval = ha->isp_ops->pci_config(vha);
 	if (rval) {
@@ -533,7 +535,7 @@ qla2x00_initialize_adapter(scsi_qla_host_t *vha)
 	}
 
 	ha->isp_ops->get_flash_version(vha, req->ring);
-	ql_log(ql_log_info, vha, 0x0061,
+	ql_dbg(ql_dbg_init, vha, 0x0061,
 	    "Configure NVRAM parameters...\n");
 
 	ha->isp_ops->nvram_config(vha);
@@ -550,7 +552,7 @@ qla2x00_initialize_adapter(scsi_qla_host_t *vha)
 		return QLA_FUNCTION_FAILED;
 	}
 
-	ql_log(ql_log_info, vha, 0x0078,
+	ql_dbg(ql_dbg_init, vha, 0x0078,
 	    "Verifying loaded RISC code...\n");
 
 	if (qla2x00_isp_firmware(vha) != QLA_SUCCESS) {
@@ -1294,7 +1296,7 @@ qla2x00_alloc_fw_dump(scsi_qla_host_t *vha)
 			ha->flags.fce_enabled = 0;
 			goto try_eft;
 		}
-		ql_log(ql_log_info, vha, 0x00c0,
+		ql_dbg(ql_dbg_init, vha, 0x00c0,
 		    "Allocate (%d KB) for FCE...\n", FCE_SIZE / 1024);
 
 		fce_size = sizeof(struct qla2xxx_fce_chain) + FCE_SIZE;
@@ -1321,7 +1323,7 @@ try_eft:
 			    tc_dma);
 			goto cont_alloc;
 		}
-		ql_log(ql_log_info, vha, 0x00c3,
+		ql_dbg(ql_dbg_init, vha, 0x00c3,
 		    "Allocated (%d KB) EFT ...\n", EFT_SIZE / 1024);
 
 		eft_size = EFT_SIZE;
@@ -1358,7 +1360,7 @@ cont_alloc:
 		}
 		return;
 	}
-	ql_log(ql_log_info, vha, 0x00c5,
+	ql_dbg(ql_dbg_init, vha, 0x00c5,
 	    "Allocated (%d KB) for firmware dump.\n", dump_size / 1024);
 
 	ha->fw_dump_len = dump_size;
@@ -1929,7 +1931,7 @@ qla2x00_fw_ready(scsi_qla_host_t *vha)
 					rval = qla84xx_init_chip(vha);
 					if (rval != QLA_SUCCESS) {
 						ql_log(ql_log_warn,
-						    vha, 0x8026,
+						    vha, 0x8007,
 						    "Init chip failed.\n");
 						break;
 					}
@@ -1938,7 +1940,7 @@ qla2x00_fw_ready(scsi_qla_host_t *vha)
 					cs84xx_time = jiffies - cs84xx_time;
 					wtime += cs84xx_time;
 					mtime += cs84xx_time;
-					ql_dbg(ql_dbg_taskm, vha, 0x8025,
+					ql_dbg(ql_dbg_taskm, vha, 0x8008,
 					    "Increasing wait time by %ld. "
 					    "New time %ld.\n", cs84xx_time,
 					    wtime);
@@ -1981,16 +1983,13 @@ qla2x00_fw_ready(scsi_qla_host_t *vha)
 
 		/* Delay for a while */
 		msleep(500);
-
-		ql_dbg(ql_dbg_taskm, vha, 0x8039,
-		    "fw_state=%x curr time=%lx.\n", state[0], jiffies);
 	} while (1);
 
 	ql_dbg(ql_dbg_taskm, vha, 0x803a,
 	    "fw_state=%x (%x, %x, %x, %x) " "curr time=%lx.\n", state[0],
 	    state[1], state[2], state[3], state[4], jiffies);
 
-	if (rval) {
+	if (rval && !(vha->device_flags & DFLG_NO_CABLE)) {
 		ql_log(ql_log_warn, vha, 0x803b,
 		    "Firmware ready **** FAILED ****.\n");
 	}
@@ -2386,7 +2385,7 @@ qla2x00_nvram_config(scsi_qla_host_t *vha)
 	 * internal driver logging.
 	 */
 	if (nv->host_p[0] & BIT_7)
-		ql2xextended_error_logging = 0x7fffffff;
+		ql2xextended_error_logging = QL_DBG_DEFAULT1_MASK;
 	ha->flags.disable_risc_code_load = ((nv->host_p[0] & BIT_4) ? 1 : 0);
 	/* Always load RISC code on non ISP2[12]00 chips. */
 	if (!IS_QLA2100(ha) && !IS_QLA2200(ha))
@@ -4188,7 +4187,8 @@ qla2x00_abort_isp(scsi_qla_host_t *vha)
 		spin_unlock_irqrestore(&ha->vport_slock, flags);
 
 	} else {
-		ql_log(ql_log_warn, vha, 0x8023, "%s **** FAILED ****.\n");
+		ql_log(ql_log_warn, vha, 0x8023, "%s **** FAILED ****.\n",
+		       __func__);
 	}
 
 	return(status);
@@ -4638,7 +4638,7 @@ qla24xx_load_risc_flash(scsi_qla_host_t *vha, uint32_t *srisc_addr,
 	struct req_que *req = ha->req_q_map[0];
 
 	ql_dbg(ql_dbg_init, vha, 0x008b,
-	    "Loading firmware from flash (%x).\n", faddr);
+	    "FW: Loading firmware from flash (%x).\n", faddr);
 
 	rval = QLA_SUCCESS;
 
@@ -4836,8 +4836,8 @@ qla24xx_load_risc_blob(scsi_qla_host_t *vha, uint32_t *srisc_addr)
 		return QLA_FUNCTION_FAILED;
 	}
 
-	ql_log(ql_log_info, vha, 0x0092,
-	    "Loading via request-firmware.\n");
+	ql_dbg(ql_dbg_init, vha, 0x0092,
+	    "FW: Loading via request-firmware.\n");
 
 	rval = QLA_SUCCESS;
 
@@ -5425,7 +5425,7 @@ qla82xx_restart_isp(scsi_qla_host_t *vha)
 		if ((vha->device_flags & DFLG_NO_CABLE))
 			status = 0;
 
-		ql_log(ql_log_info, vha, 0x803d,
+		ql_log(ql_log_info, vha, 0x8000,
 		    "Configure loop done, status = 0x%x.\n", status);
 	}
 
@@ -5458,7 +5458,7 @@ qla82xx_restart_isp(scsi_qla_host_t *vha)
 			    ha->fce_dma, ha->fce_bufs, ha->fce_mb,
 			    &ha->fce_bufs);
 			if (rval) {
-				ql_log(ql_log_warn, vha, 0x803e,
+				ql_log(ql_log_warn, vha, 0x8001,
 				    "Unable to reinitialize FCE (%d).\n",
 				    rval);
 				ha->flags.fce_enabled = 0;
@@ -5470,7 +5470,7 @@ qla82xx_restart_isp(scsi_qla_host_t *vha)
 			rval = qla2x00_enable_eft_trace(vha,
 			    ha->eft_dma, EFT_NUM_BUFFERS);
 			if (rval) {
-				ql_log(ql_log_warn, vha, 0x803f,
+				ql_log(ql_log_warn, vha, 0x8010,
 				    "Unable to reinitialize EFT (%d).\n",
 				    rval);
 			}
@@ -5478,7 +5478,7 @@ qla82xx_restart_isp(scsi_qla_host_t *vha)
 	}
 
 	if (!status) {
-		ql_dbg(ql_dbg_taskm, vha, 0x8040,
+		ql_dbg(ql_dbg_taskm, vha, 0x8011,
 		    "qla82xx_restart_isp succeeded.\n");
 
 		spin_lock_irqsave(&ha->vport_slock, flags);
@@ -5496,7 +5496,7 @@ qla82xx_restart_isp(scsi_qla_host_t *vha)
 		spin_unlock_irqrestore(&ha->vport_slock, flags);
 
 	} else {
-		ql_log(ql_log_warn, vha, 0x8041,
+		ql_log(ql_log_warn, vha, 0x8016,
 		    "qla82xx_restart_isp **** FAILED ****.\n");
 	}
 
@@ -5643,13 +5643,26 @@ qla24xx_update_fcport_fcp_prio(scsi_qla_host_t *vha, fc_port_t *fcport)
 	if (priority < 0)
 		return QLA_FUNCTION_FAILED;
 
+	if (IS_QLA82XX(vha->hw)) {
+		fcport->fcp_prio = priority & 0xf;
+		return QLA_SUCCESS;
+	}
+
 	ret = qla24xx_set_fcp_prio(vha, fcport->loop_id, priority, mb);
-	if (ret == QLA_SUCCESS)
-		fcport->fcp_prio = priority;
-	else
+	if (ret == QLA_SUCCESS) {
+		if (fcport->fcp_prio != priority)
+			ql_dbg(ql_dbg_user, vha, 0x709e,
+			    "Updated FCP_CMND priority - value=%d loop_id=%d "
+			    "port_id=%02x%02x%02x.\n", priority,
+			    fcport->loop_id, fcport->d_id.b.domain,
+			    fcport->d_id.b.area, fcport->d_id.b.al_pa);
+		fcport->fcp_prio = priority & 0xf;
+	} else
 		ql_dbg(ql_dbg_user, vha, 0x704f,
-		    "Unable to activate fcp priority, ret=0x%x.\n", ret);
-
+		    "Unable to update FCP_CMND priority - ret=0x%x for "
+		    "loop_id=%d port_id=%02x%02x%02x.\n", ret, fcport->loop_id,
+		    fcport->d_id.b.domain, fcport->d_id.b.area,
+		    fcport->d_id.b.al_pa);
 	return  ret;
 }
 
diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c
index a4b267e60a35..55a96761b5a4 100644
--- a/drivers/scsi/qla2xxx/qla_iocb.c
+++ b/drivers/scsi/qla2xxx/qla_iocb.c
@@ -11,8 +11,6 @@
 
 #include <scsi/scsi_tcq.h>
 
-static void qla2x00_isp_cmd(struct scsi_qla_host *, struct req_que *);
-
 static void qla25xx_set_que(srb_t *, struct rsp_que **);
 /**
  * qla2x00_get_cmd_direction() - Determine control_flag data direction.
@@ -468,6 +466,42 @@ queuing_error:
 }
 
 /**
+ * qla2x00_start_iocbs() - Execute the IOCB command
+ */
+static void
+qla2x00_start_iocbs(struct scsi_qla_host *vha, struct req_que *req)
+{
+	struct qla_hw_data *ha = vha->hw;
+	device_reg_t __iomem *reg = ISP_QUE_REG(ha, req->id);
+	struct device_reg_2xxx __iomem *ioreg = &ha->iobase->isp;
+
+	if (IS_QLA82XX(ha)) {
+		qla82xx_start_iocbs(vha);
+	} else {
+		/* Adjust ring index. */
+		req->ring_index++;
+		if (req->ring_index == req->length) {
+			req->ring_index = 0;
+			req->ring_ptr = req->ring;
+		} else
+			req->ring_ptr++;
+
+		/* Set chip new ring index. */
+		if (ha->mqenable) {
+			WRT_REG_DWORD(&reg->isp25mq.req_q_in, req->ring_index);
+			RD_REG_DWORD(&ioreg->hccr);
+		} else if (IS_FWI2_CAPABLE(ha)) {
+			WRT_REG_DWORD(&reg->isp24.req_q_in, req->ring_index);
+			RD_REG_DWORD_RELAXED(&reg->isp24.req_q_in);
+		} else {
+			WRT_REG_WORD(ISP_REQ_Q_IN(ha, &reg->isp),
+				req->ring_index);
+			RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, &reg->isp));
+		}
+	}
+}
+
+/**
  * qla2x00_marker() - Send a marker IOCB to the firmware.
  * @ha: HA context
  * @loop_id: loop ID
@@ -489,6 +523,7 @@ __qla2x00_marker(struct scsi_qla_host *vha, struct req_que *req,
 	scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
 
 	mrk24 = NULL;
+	req = ha->req_q_map[0];
 	mrk = (mrk_entry_t *)qla2x00_alloc_iocbs(vha, 0);
 	if (mrk == NULL) {
 		ql_log(ql_log_warn, base_vha, 0x3026,
@@ -515,7 +550,7 @@ __qla2x00_marker(struct scsi_qla_host *vha, struct req_que *req,
 	}
 	wmb();
 
-	qla2x00_isp_cmd(vha, req);
+	qla2x00_start_iocbs(vha, req);
 
 	return (QLA_SUCCESS);
 }
@@ -536,89 +571,140 @@ qla2x00_marker(struct scsi_qla_host *vha, struct req_que *req,
 }
 
 /**
- * qla2x00_isp_cmd() - Modify the request ring pointer.
- * @ha: HA context
+ * qla24xx_calc_iocbs() - Determine number of Command Type 3 and
+ * Continuation Type 1 IOCBs to allocate.
+ *
+ * @dsds: number of data segment decriptors needed
  *
- * Note: The caller must hold the hardware lock before calling this routine.
+ * Returns the number of IOCB entries needed to store @dsds.
  */
-static void
-qla2x00_isp_cmd(struct scsi_qla_host *vha, struct req_que *req)
+inline uint16_t
+qla24xx_calc_iocbs(scsi_qla_host_t *vha, uint16_t dsds)
 {
-	struct qla_hw_data *ha = vha->hw;
-	device_reg_t __iomem *reg = ISP_QUE_REG(ha, req->id);
-	struct device_reg_2xxx __iomem *ioreg = &ha->iobase->isp;
+	uint16_t iocbs;
 
-	ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x302d,
-	    "IOCB data:\n");
-	ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302e,
-	    (uint8_t *)req->ring_ptr, REQUEST_ENTRY_SIZE);
+	iocbs = 1;
+	if (dsds > 1) {
+		iocbs += (dsds - 1) / 5;
+		if ((dsds - 1) % 5)
+			iocbs++;
+	}
+	return iocbs;
+}
 
-	/* Adjust ring index. */
-	req->ring_index++;
-	if (req->ring_index == req->length) {
-		req->ring_index = 0;
-		req->ring_ptr = req->ring;
-	} else
-		req->ring_ptr++;
+static inline int
+qla24xx_build_scsi_type_6_iocbs(srb_t *sp, struct cmd_type_6 *cmd_pkt,
+	uint16_t tot_dsds)
+{
+	uint32_t *cur_dsd = NULL;
+	scsi_qla_host_t	*vha;
+	struct qla_hw_data *ha;
+	struct scsi_cmnd *cmd;
+	struct	scatterlist *cur_seg;
+	uint32_t *dsd_seg;
+	void *next_dsd;
+	uint8_t avail_dsds;
+	uint8_t first_iocb = 1;
+	uint32_t dsd_list_len;
+	struct dsd_dma *dsd_ptr;
+	struct ct6_dsd *ctx;
 
-	/* Set chip new ring index. */
-	if (IS_QLA82XX(ha)) {
-		uint32_t dbval = 0x04 | (ha->portnum << 5);
+	cmd = sp->cmd;
 
-		/* write, read and verify logic */
-		dbval = dbval | (req->id << 8) | (req->ring_index << 16);
-		if (ql2xdbwr)
-			qla82xx_wr_32(ha, ha->nxdb_wr_ptr, dbval);
-		else {
-			WRT_REG_DWORD(
-				(unsigned long __iomem *)ha->nxdb_wr_ptr,
-				dbval);
-			wmb();
-			while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) {
-				WRT_REG_DWORD((unsigned long __iomem *)
-					ha->nxdb_wr_ptr, dbval);
-				wmb();
-			}
-		}
-	} else if (ha->mqenable) {
-		/* Set chip new ring index. */
-		WRT_REG_DWORD(&reg->isp25mq.req_q_in, req->ring_index);
-		RD_REG_DWORD(&ioreg->hccr);
-	} else {
-		if (IS_FWI2_CAPABLE(ha)) {
-			WRT_REG_DWORD(&reg->isp24.req_q_in, req->ring_index);
-			RD_REG_DWORD_RELAXED(&reg->isp24.req_q_in);
+	/* Update entry type to indicate Command Type 3 IOCB */
+	*((uint32_t *)(&cmd_pkt->entry_type)) =
+		__constant_cpu_to_le32(COMMAND_TYPE_6);
+
+	/* No data transfer */
+	if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
+		cmd_pkt->byte_count = __constant_cpu_to_le32(0);
+		return 0;
+	}
+
+	vha = sp->fcport->vha;
+	ha = vha->hw;
+
+	/* Set transfer direction */
+	if (cmd->sc_data_direction == DMA_TO_DEVICE) {
+		cmd_pkt->control_flags =
+		    __constant_cpu_to_le16(CF_WRITE_DATA);
+		ha->qla_stats.output_bytes += scsi_bufflen(cmd);
+	} else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
+		cmd_pkt->control_flags =
+		    __constant_cpu_to_le16(CF_READ_DATA);
+		ha->qla_stats.input_bytes += scsi_bufflen(cmd);
+	}
+
+	cur_seg = scsi_sglist(cmd);
+	ctx = sp->ctx;
+
+	while (tot_dsds) {
+		avail_dsds = (tot_dsds > QLA_DSDS_PER_IOCB) ?
+		    QLA_DSDS_PER_IOCB : tot_dsds;
+		tot_dsds -= avail_dsds;
+		dsd_list_len = (avail_dsds + 1) * QLA_DSD_SIZE;
+
+		dsd_ptr = list_first_entry(&ha->gbl_dsd_list,
+		    struct dsd_dma, list);
+		next_dsd = dsd_ptr->dsd_addr;
+		list_del(&dsd_ptr->list);
+		ha->gbl_dsd_avail--;
+		list_add_tail(&dsd_ptr->list, &ctx->dsd_list);
+		ctx->dsd_use_cnt++;
+		ha->gbl_dsd_inuse++;
+
+		if (first_iocb) {
+			first_iocb = 0;
+			dsd_seg = (uint32_t *)&cmd_pkt->fcp_data_dseg_address;
+			*dsd_seg++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma));
+			*dsd_seg++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma));
+			cmd_pkt->fcp_data_dseg_len = cpu_to_le32(dsd_list_len);
 		} else {
-			WRT_REG_WORD(ISP_REQ_Q_IN(ha, &reg->isp),
-				req->ring_index);
-			RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, &reg->isp));
+			*cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma));
+			*cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma));
+			*cur_dsd++ = cpu_to_le32(dsd_list_len);
+		}
+		cur_dsd = (uint32_t *)next_dsd;
+		while (avail_dsds) {
+			dma_addr_t	sle_dma;
+
+			sle_dma = sg_dma_address(cur_seg);
+			*cur_dsd++ = cpu_to_le32(LSD(sle_dma));
+			*cur_dsd++ = cpu_to_le32(MSD(sle_dma));
+			*cur_dsd++ = cpu_to_le32(sg_dma_len(cur_seg));
+			cur_seg = sg_next(cur_seg);
+			avail_dsds--;
 		}
 	}
 
+	/* Null termination */
+	*cur_dsd++ =  0;
+	*cur_dsd++ = 0;
+	*cur_dsd++ = 0;
+	cmd_pkt->control_flags |= CF_DATA_SEG_DESCR_ENABLE;
+	return 0;
 }
 
-/**
- * qla24xx_calc_iocbs() - Determine number of Command Type 3 and
- * Continuation Type 1 IOCBs to allocate.
+/*
+ * qla24xx_calc_dsd_lists() - Determine number of DSD list required
+ * for Command Type 6.
  *
  * @dsds: number of data segment decriptors needed
  *
- * Returns the number of IOCB entries needed to store @dsds.
+ * Returns the number of dsd list needed to store @dsds.
  */
 inline uint16_t
-qla24xx_calc_iocbs(scsi_qla_host_t *vha, uint16_t dsds)
+qla24xx_calc_dsd_lists(uint16_t dsds)
 {
-	uint16_t iocbs;
+	uint16_t dsd_lists = 0;
 
-	iocbs = 1;
-	if (dsds > 1) {
-		iocbs += (dsds - 1) / 5;
-		if ((dsds - 1) % 5)
-			iocbs++;
-	}
-	return iocbs;
+	dsd_lists = (dsds/QLA_DSDS_PER_IOCB);
+	if (dsds % QLA_DSDS_PER_IOCB)
+		dsd_lists++;
+	return dsd_lists;
 }
 
+
 /**
  * qla24xx_build_scsi_iocbs() - Build IOCB command utilizing Command Type 7
  * IOCB types.
@@ -945,6 +1031,7 @@ alloc_and_fill:
 	*cur_dsd++ = 0;
 	return 0;
 }
+
 static int
 qla24xx_walk_and_build_sglist(struct qla_hw_data *ha, srb_t *sp, uint32_t *dsd,
 	uint16_t tot_dsds)
@@ -1004,7 +1091,7 @@ qla24xx_walk_and_build_sglist(struct qla_hw_data *ha, srb_t *sp, uint32_t *dsd,
 		sle_dma = sg_dma_address(sg);
 		ql_dbg(ql_dbg_io, vha, 0x300a,
 		    "sg entry %d - addr=0x%x 0x%x, " "len=%d for cmd=%p.\n",
-		    cur_dsd, i, LSD(sle_dma), MSD(sle_dma), sg_dma_len(sg),
+		    i, LSD(sle_dma), MSD(sle_dma), sg_dma_len(sg),
 		    sp->cmd);
 		*cur_dsd++ = cpu_to_le32(LSD(sle_dma));
 		*cur_dsd++ = cpu_to_le32(MSD(sle_dma));
@@ -1731,6 +1818,7 @@ qla2x00_alloc_iocbs(scsi_qla_host_t *vha, srb_t *sp)
 	uint32_t index, handle;
 	request_t *pkt;
 	uint16_t cnt, req_cnt;
+	struct srb_ctx *ctx;
 
 	pkt = NULL;
 	req_cnt = 1;
@@ -1759,6 +1847,12 @@ qla2x00_alloc_iocbs(scsi_qla_host_t *vha, srb_t *sp)
 	req->outstanding_cmds[handle] = sp;
 	sp->handle = handle;
 
+	/* Adjust entry-counts as needed. */
+	if (sp->ctx) {
+		ctx = sp->ctx;
+		req_cnt = ctx->iocbs;
+	}
+
 skip_cmd_array:
 	/* Check for room on request queue. */
 	if (req->cnt < req_cnt) {
@@ -1793,42 +1887,6 @@ queuing_error:
 }
 
 static void
-qla2x00_start_iocbs(srb_t *sp)
-{
-	struct qla_hw_data *ha = sp->fcport->vha->hw;
-	struct req_que *req = ha->req_q_map[0];
-	device_reg_t __iomem *reg = ISP_QUE_REG(ha, req->id);
-	struct device_reg_2xxx __iomem *ioreg = &ha->iobase->isp;
-
-	if (IS_QLA82XX(ha)) {
-		qla82xx_start_iocbs(sp);
-	} else {
-		/* Adjust ring index. */
-		req->ring_index++;
-		if (req->ring_index == req->length) {
-			req->ring_index = 0;
-			req->ring_ptr = req->ring;
-		} else
-			req->ring_ptr++;
-
-		/* Set chip new ring index. */
-		if (ha->mqenable) {
-			WRT_REG_DWORD(&reg->isp25mq.req_q_in, req->ring_index);
-			RD_REG_DWORD(&ioreg->hccr);
-		} else if (IS_QLA82XX(ha)) {
-			qla82xx_start_iocbs(sp);
-		} else if (IS_FWI2_CAPABLE(ha)) {
-			WRT_REG_DWORD(&reg->isp24.req_q_in, req->ring_index);
-			RD_REG_DWORD_RELAXED(&reg->isp24.req_q_in);
-		} else {
-			WRT_REG_WORD(ISP_REQ_Q_IN(ha, &reg->isp),
-				req->ring_index);
-			RD_REG_WORD_RELAXED(ISP_REQ_Q_IN(ha, &reg->isp));
-		}
-	}
-}
-
-static void
 qla24xx_login_iocb(srb_t *sp, struct logio_entry_24xx *logio)
 {
 	struct srb_ctx *ctx = sp->ctx;
@@ -2160,6 +2218,381 @@ qla24xx_ct_iocb(srb_t *sp, struct ct_entry_24xx *ct_iocb)
         ct_iocb->entry_count = entry_count;
 }
 
+/*
+ * qla82xx_start_scsi() - Send a SCSI command to the ISP
+ * @sp: command to send to the ISP
+ *
+ * Returns non-zero if a failure occurred, else zero.
+ */
+int
+qla82xx_start_scsi(srb_t *sp)
+{
+	int		ret, nseg;
+	unsigned long   flags;
+	struct scsi_cmnd *cmd;
+	uint32_t	*clr_ptr;
+	uint32_t        index;
+	uint32_t	handle;
+	uint16_t	cnt;
+	uint16_t	req_cnt;
+	uint16_t	tot_dsds;
+	struct device_reg_82xx __iomem *reg;
+	uint32_t dbval;
+	uint32_t *fcp_dl;
+	uint8_t additional_cdb_len;
+	struct ct6_dsd *ctx;
+	struct scsi_qla_host *vha = sp->fcport->vha;
+	struct qla_hw_data *ha = vha->hw;
+	struct req_que *req = NULL;
+	struct rsp_que *rsp = NULL;
+	char		tag[2];
+
+	/* Setup device pointers. */
+	ret = 0;
+	reg = &ha->iobase->isp82;
+	cmd = sp->cmd;
+	req = vha->req;
+	rsp = ha->rsp_q_map[0];
+
+	/* So we know we haven't pci_map'ed anything yet */
+	tot_dsds = 0;
+
+	dbval = 0x04 | (ha->portnum << 5);
+
+	/* Send marker if required */
+	if (vha->marker_needed != 0) {
+		if (qla2x00_marker(vha, req,
+			rsp, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) {
+			ql_log(ql_log_warn, vha, 0x300c,
+			    "qla2x00_marker failed for cmd=%p.\n", cmd);
+			return QLA_FUNCTION_FAILED;
+		}
+		vha->marker_needed = 0;
+	}
+
+	/* Acquire ring specific lock */
+	spin_lock_irqsave(&ha->hardware_lock, flags);
+
+	/* Check for room in outstanding command list. */
+	handle = req->current_outstanding_cmd;
+	for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) {
+		handle++;
+		if (handle == MAX_OUTSTANDING_COMMANDS)
+			handle = 1;
+		if (!req->outstanding_cmds[handle])
+			break;
+	}
+	if (index == MAX_OUTSTANDING_COMMANDS)
+		goto queuing_error;
+
+	/* Map the sg table so we have an accurate count of sg entries needed */
+	if (scsi_sg_count(cmd)) {
+		nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
+		    scsi_sg_count(cmd), cmd->sc_data_direction);
+		if (unlikely(!nseg))
+			goto queuing_error;
+	} else
+		nseg = 0;
+
+	tot_dsds = nseg;
+
+	if (tot_dsds > ql2xshiftctondsd) {
+		struct cmd_type_6 *cmd_pkt;
+		uint16_t more_dsd_lists = 0;
+		struct dsd_dma *dsd_ptr;
+		uint16_t i;
+
+		more_dsd_lists = qla24xx_calc_dsd_lists(tot_dsds);
+		if ((more_dsd_lists + ha->gbl_dsd_inuse) >= NUM_DSD_CHAIN) {
+			ql_dbg(ql_dbg_io, vha, 0x300d,
+			    "Num of DSD list %d is than %d for cmd=%p.\n",
+			    more_dsd_lists + ha->gbl_dsd_inuse, NUM_DSD_CHAIN,
+			    cmd);
+			goto queuing_error;
+		}
+
+		if (more_dsd_lists <= ha->gbl_dsd_avail)
+			goto sufficient_dsds;
+		else
+			more_dsd_lists -= ha->gbl_dsd_avail;
+
+		for (i = 0; i < more_dsd_lists; i++) {
+			dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC);
+			if (!dsd_ptr) {
+				ql_log(ql_log_fatal, vha, 0x300e,
+				    "Failed to allocate memory for dsd_dma "
+				    "for cmd=%p.\n", cmd);
+				goto queuing_error;
+			}
+
+			dsd_ptr->dsd_addr = dma_pool_alloc(ha->dl_dma_pool,
+				GFP_ATOMIC, &dsd_ptr->dsd_list_dma);
+			if (!dsd_ptr->dsd_addr) {
+				kfree(dsd_ptr);
+				ql_log(ql_log_fatal, vha, 0x300f,
+				    "Failed to allocate memory for dsd_addr "
+				    "for cmd=%p.\n", cmd);
+				goto queuing_error;
+			}
+			list_add_tail(&dsd_ptr->list, &ha->gbl_dsd_list);
+			ha->gbl_dsd_avail++;
+		}
+
+sufficient_dsds:
+		req_cnt = 1;
+
+		if (req->cnt < (req_cnt + 2)) {
+			cnt = (uint16_t)RD_REG_DWORD_RELAXED(
+				&reg->req_q_out[0]);
+			if (req->ring_index < cnt)
+				req->cnt = cnt - req->ring_index;
+			else
+				req->cnt = req->length -
+					(req->ring_index - cnt);
+		}
+
+		if (req->cnt < (req_cnt + 2))
+			goto queuing_error;
+
+		ctx = sp->ctx = mempool_alloc(ha->ctx_mempool, GFP_ATOMIC);
+		if (!sp->ctx) {
+			ql_log(ql_log_fatal, vha, 0x3010,
+			    "Failed to allocate ctx for cmd=%p.\n", cmd);
+			goto queuing_error;
+		}
+		memset(ctx, 0, sizeof(struct ct6_dsd));
+		ctx->fcp_cmnd = dma_pool_alloc(ha->fcp_cmnd_dma_pool,
+			GFP_ATOMIC, &ctx->fcp_cmnd_dma);
+		if (!ctx->fcp_cmnd) {
+			ql_log(ql_log_fatal, vha, 0x3011,
+			    "Failed to allocate fcp_cmnd for cmd=%p.\n", cmd);
+			goto queuing_error_fcp_cmnd;
+		}
+
+		/* Initialize the DSD list and dma handle */
+		INIT_LIST_HEAD(&ctx->dsd_list);
+		ctx->dsd_use_cnt = 0;
+
+		if (cmd->cmd_len > 16) {
+			additional_cdb_len = cmd->cmd_len - 16;
+			if ((cmd->cmd_len % 4) != 0) {
+				/* SCSI command bigger than 16 bytes must be
+				 * multiple of 4
+				 */
+				ql_log(ql_log_warn, vha, 0x3012,
+				    "scsi cmd len %d not multiple of 4 "
+				    "for cmd=%p.\n", cmd->cmd_len, cmd);
+				goto queuing_error_fcp_cmnd;
+			}
+			ctx->fcp_cmnd_len = 12 + cmd->cmd_len + 4;
+		} else {
+			additional_cdb_len = 0;
+			ctx->fcp_cmnd_len = 12 + 16 + 4;
+		}
+
+		cmd_pkt = (struct cmd_type_6 *)req->ring_ptr;
+		cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
+
+		/* Zero out remaining portion of packet. */
+		/*    tagged queuing modifier -- default is TSK_SIMPLE (0). */
+		clr_ptr = (uint32_t *)cmd_pkt + 2;
+		memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
+		cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
+
+		/* Set NPORT-ID and LUN number*/
+		cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
+		cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
+		cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
+		cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
+		cmd_pkt->vp_index = sp->fcport->vp_idx;
+
+		/* Build IOCB segments */
+		if (qla24xx_build_scsi_type_6_iocbs(sp, cmd_pkt, tot_dsds))
+			goto queuing_error_fcp_cmnd;
+
+		int_to_scsilun(sp->cmd->device->lun, &cmd_pkt->lun);
+		host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
+
+		/* build FCP_CMND IU */
+		memset(ctx->fcp_cmnd, 0, sizeof(struct fcp_cmnd));
+		int_to_scsilun(sp->cmd->device->lun, &ctx->fcp_cmnd->lun);
+		ctx->fcp_cmnd->additional_cdb_len = additional_cdb_len;
+
+		if (cmd->sc_data_direction == DMA_TO_DEVICE)
+			ctx->fcp_cmnd->additional_cdb_len |= 1;
+		else if (cmd->sc_data_direction == DMA_FROM_DEVICE)
+			ctx->fcp_cmnd->additional_cdb_len |= 2;
+
+		/*
+		 * Update tagged queuing modifier -- default is TSK_SIMPLE (0).
+		 */
+		if (scsi_populate_tag_msg(cmd, tag)) {
+			switch (tag[0]) {
+			case HEAD_OF_QUEUE_TAG:
+				ctx->fcp_cmnd->task_attribute =
+				    TSK_HEAD_OF_QUEUE;
+				break;
+			case ORDERED_QUEUE_TAG:
+				ctx->fcp_cmnd->task_attribute =
+				    TSK_ORDERED;
+				break;
+			}
+		}
+
+		/* Populate the FCP_PRIO. */
+		if (ha->flags.fcp_prio_enabled)
+			ctx->fcp_cmnd->task_attribute |=
+			    sp->fcport->fcp_prio << 3;
+
+		memcpy(ctx->fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len);
+
+		fcp_dl = (uint32_t *)(ctx->fcp_cmnd->cdb + 16 +
+		    additional_cdb_len);
+		*fcp_dl = htonl((uint32_t)scsi_bufflen(cmd));
+
+		cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(ctx->fcp_cmnd_len);
+		cmd_pkt->fcp_cmnd_dseg_address[0] =
+		    cpu_to_le32(LSD(ctx->fcp_cmnd_dma));
+		cmd_pkt->fcp_cmnd_dseg_address[1] =
+		    cpu_to_le32(MSD(ctx->fcp_cmnd_dma));
+
+		sp->flags |= SRB_FCP_CMND_DMA_VALID;
+		cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
+		/* Set total data segment count. */
+		cmd_pkt->entry_count = (uint8_t)req_cnt;
+		/* Specify response queue number where
+		 * completion should happen
+		 */
+		cmd_pkt->entry_status = (uint8_t) rsp->id;
+	} else {
+		struct cmd_type_7 *cmd_pkt;
+		req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
+		if (req->cnt < (req_cnt + 2)) {
+			cnt = (uint16_t)RD_REG_DWORD_RELAXED(
+			    &reg->req_q_out[0]);
+			if (req->ring_index < cnt)
+				req->cnt = cnt - req->ring_index;
+			else
+				req->cnt = req->length -
+					(req->ring_index - cnt);
+		}
+		if (req->cnt < (req_cnt + 2))
+			goto queuing_error;
+
+		cmd_pkt = (struct cmd_type_7 *)req->ring_ptr;
+		cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
+
+		/* Zero out remaining portion of packet. */
+		/* tagged queuing modifier -- default is TSK_SIMPLE (0).*/
+		clr_ptr = (uint32_t *)cmd_pkt + 2;
+		memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
+		cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
+
+		/* Set NPORT-ID and LUN number*/
+		cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
+		cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
+		cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
+		cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
+		cmd_pkt->vp_index = sp->fcport->vp_idx;
+
+		int_to_scsilun(sp->cmd->device->lun, &cmd_pkt->lun);
+		host_to_fcp_swap((uint8_t *)&cmd_pkt->lun,
+			sizeof(cmd_pkt->lun));
+
+		/*
+		 * Update tagged queuing modifier -- default is TSK_SIMPLE (0).
+		 */
+		if (scsi_populate_tag_msg(cmd, tag)) {
+			switch (tag[0]) {
+			case HEAD_OF_QUEUE_TAG:
+				cmd_pkt->task = TSK_HEAD_OF_QUEUE;
+				break;
+			case ORDERED_QUEUE_TAG:
+				cmd_pkt->task = TSK_ORDERED;
+				break;
+			}
+		}
+
+		/* Populate the FCP_PRIO. */
+		if (ha->flags.fcp_prio_enabled)
+			cmd_pkt->task |= sp->fcport->fcp_prio << 3;
+
+		/* Load SCSI command packet. */
+		memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len);
+		host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb));
+
+		cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
+
+		/* Build IOCB segments */
+		qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds);
+
+		/* Set total data segment count. */
+		cmd_pkt->entry_count = (uint8_t)req_cnt;
+		/* Specify response queue number where
+		 * completion should happen.
+		 */
+		cmd_pkt->entry_status = (uint8_t) rsp->id;
+
+	}
+	/* Build command packet. */
+	req->current_outstanding_cmd = handle;
+	req->outstanding_cmds[handle] = sp;
+	sp->handle = handle;
+	sp->cmd->host_scribble = (unsigned char *)(unsigned long)handle;
+	req->cnt -= req_cnt;
+	wmb();
+
+	/* Adjust ring index. */
+	req->ring_index++;
+	if (req->ring_index == req->length) {
+		req->ring_index = 0;
+		req->ring_ptr = req->ring;
+	} else
+		req->ring_ptr++;
+
+	sp->flags |= SRB_DMA_VALID;
+
+	/* Set chip new ring index. */
+	/* write, read and verify logic */
+	dbval = dbval | (req->id << 8) | (req->ring_index << 16);
+	if (ql2xdbwr)
+		qla82xx_wr_32(ha, ha->nxdb_wr_ptr, dbval);
+	else {
+		WRT_REG_DWORD(
+			(unsigned long __iomem *)ha->nxdb_wr_ptr,
+			dbval);
+		wmb();
+		while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) {
+			WRT_REG_DWORD(
+				(unsigned long __iomem *)ha->nxdb_wr_ptr,
+				dbval);
+			wmb();
+		}
+	}
+
+	/* Manage unprocessed RIO/ZIO commands in response queue. */
+	if (vha->flags.process_response_queue &&
+	    rsp->ring_ptr->signature != RESPONSE_PROCESSED)
+		qla24xx_process_response_queue(vha, rsp);
+
+	spin_unlock_irqrestore(&ha->hardware_lock, flags);
+	return QLA_SUCCESS;
+
+queuing_error_fcp_cmnd:
+	dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd, ctx->fcp_cmnd_dma);
+queuing_error:
+	if (tot_dsds)
+		scsi_dma_unmap(cmd);
+
+	if (sp->ctx) {
+		mempool_free(sp->ctx, ha->ctx_mempool);
+		sp->ctx = NULL;
+	}
+	spin_unlock_irqrestore(&ha->hardware_lock, flags);
+
+	return QLA_FUNCTION_FAILED;
+}
+
 int
 qla2x00_start_sp(srb_t *sp)
 {
@@ -2196,8 +2629,8 @@ qla2x00_start_sp(srb_t *sp)
 		break;
 	case SRB_CT_CMD:
 		IS_FWI2_CAPABLE(ha) ?
-		qla24xx_ct_iocb(sp, pkt) :
-		qla2x00_ct_iocb(sp, pkt);
+		    qla24xx_ct_iocb(sp, pkt) :
+		    qla2x00_ct_iocb(sp, pkt);
 		break;
 	case SRB_ADISC_CMD:
 		IS_FWI2_CAPABLE(ha) ?
@@ -2212,7 +2645,7 @@ qla2x00_start_sp(srb_t *sp)
 	}
 
 	wmb();
-	qla2x00_start_iocbs(sp);
+	qla2x00_start_iocbs(sp->fcport->vha, ha->req_q_map[0]);
 done:
 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
 	return rval;
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index 7b91b290ffd6..e804585cc59c 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -242,32 +242,34 @@ static void
 qla2x00_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
 {
 	uint16_t	cnt;
+	uint32_t	mboxes;
 	uint16_t __iomem *wptr;
 	struct qla_hw_data *ha = vha->hw;
 	struct device_reg_2xxx __iomem *reg = &ha->iobase->isp;
 
+	/* Read all mbox registers? */
+	mboxes = (1 << ha->mbx_count) - 1;
+	if (!ha->mcp)
+		ql_dbg(ql_dbg_async, vha, 0x5001, "MBX pointer ERRROR.\n");
+	else
+		mboxes = ha->mcp->in_mb;
+
 	/* Load return mailbox registers. */
 	ha->flags.mbox_int = 1;
 	ha->mailbox_out[0] = mb0;
+	mboxes >>= 1;
 	wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 1);
 
 	for (cnt = 1; cnt < ha->mbx_count; cnt++) {
 		if (IS_QLA2200(ha) && cnt == 8)
 			wptr = (uint16_t __iomem *)MAILBOX_REG(ha, reg, 8);
-		if (cnt == 4 || cnt == 5)
+		if ((cnt == 4 || cnt == 5) && (mboxes & BIT_0))
 			ha->mailbox_out[cnt] = qla2x00_debounce_register(wptr);
-		else
+		else if (mboxes & BIT_0)
 			ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
 
 		wptr++;
-	}
-
-	if (ha->mcp) {
-		ql_dbg(ql_dbg_async, vha, 0x5000,
-		    "Got mbx completion. cmd=%x.\n", ha->mcp->mb[0]);
-	} else {
-		ql_dbg(ql_dbg_async, vha, 0x5001,
-		    "MBX pointer ERROR.\n");
+		mboxes >>= 1;
 	}
 }
 
@@ -298,7 +300,7 @@ qla81xx_idc_event(scsi_qla_host_t *vha, uint16_t aen, uint16_t descr)
 		return;
 
 	ql_dbg(ql_dbg_async, vha, 0x5022,
-	    "Inter-Driver Commucation %s -- ACK timeout=%d.\n",
+	    "%lu Inter-Driver Communication %s -- ACK timeout=%d.\n",
 	    vha->host_no, event[aen & 0xff], timeout);
 
 	rval = qla2x00_post_idc_ack_work(vha, mb);
@@ -453,7 +455,7 @@ skip_rio:
 		break;
 
 	case MBA_LIP_OCCURRED:		/* Loop Initialization Procedure */
-		ql_log(ql_log_info, vha, 0x5009,
+		ql_dbg(ql_dbg_async, vha, 0x5009,
 		    "LIP occurred (%x).\n", mb[1]);
 
 		if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
@@ -487,7 +489,7 @@ skip_rio:
 			ha->link_data_rate = mb[1];
 		}
 
-		ql_log(ql_log_info, vha, 0x500a,
+		ql_dbg(ql_dbg_async, vha, 0x500a,
 		    "LOOP UP detected (%s Gbps).\n", link_speed);
 
 		vha->flags.management_server_logged_in = 0;
@@ -497,7 +499,7 @@ skip_rio:
 	case MBA_LOOP_DOWN:		/* Loop Down Event */
 		mbx = IS_QLA81XX(ha) ? RD_REG_WORD(&reg24->mailbox4) : 0;
 		mbx = IS_QLA82XX(ha) ? RD_REG_WORD(&reg82->mailbox_out[4]) : mbx;
-		ql_log(ql_log_info, vha, 0x500b,
+		ql_dbg(ql_dbg_async, vha, 0x500b,
 		    "LOOP DOWN detected (%x %x %x %x).\n",
 		    mb[1], mb[2], mb[3], mbx);
 
@@ -519,7 +521,7 @@ skip_rio:
 		break;
 
 	case MBA_LIP_RESET:		/* LIP reset occurred */
-		ql_log(ql_log_info, vha, 0x500c,
+		ql_dbg(ql_dbg_async, vha, 0x500c,
 		    "LIP reset occurred (%x).\n", mb[1]);
 
 		if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
@@ -587,7 +589,7 @@ skip_rio:
 		if (IS_QLA2100(ha))
 			break;
 
-		ql_log(ql_log_info, vha, 0x500f,
+		ql_dbg(ql_dbg_async, vha, 0x500f,
 		    "Configuration change detected: value=%x.\n", mb[1]);
 
 		if (atomic_read(&vha->loop_state) != LOOP_DOWN) {
@@ -920,15 +922,15 @@ qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
 	    QLA_LOGIO_LOGIN_RETRIED : 0;
 	if (mbx->entry_status) {
 		ql_dbg(ql_dbg_async, vha, 0x5043,
-		    "Async-%s error entry - portid=%02x%02x%02x "
+		    "Async-%s error entry - hdl=%x portid=%02x%02x%02x "
 		    "entry-status=%x status=%x state-flag=%x "
-		    "status-flags=%x.\n",
-		    type, fcport->d_id.b.domain, fcport->d_id.b.area,
+		    "status-flags=%x.\n", type, sp->handle,
+		    fcport->d_id.b.domain, fcport->d_id.b.area,
 		    fcport->d_id.b.al_pa, mbx->entry_status,
 		    le16_to_cpu(mbx->status), le16_to_cpu(mbx->state_flags),
 		    le16_to_cpu(mbx->status_flags));
 
-		ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5057,
+		ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5029,
 		    (uint8_t *)mbx, sizeof(*mbx));
 
 		goto logio_done;
@@ -940,9 +942,10 @@ qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
 		status = 0;
 	if (!status && le16_to_cpu(mbx->mb0) == MBS_COMMAND_COMPLETE) {
 		ql_dbg(ql_dbg_async, vha, 0x5045,
-		    "Async-%s complete - portid=%02x%02x%02x mbx1=%x.\n",
-		    type, fcport->d_id.b.domain, fcport->d_id.b.area,
-		    fcport->d_id.b.al_pa, le16_to_cpu(mbx->mb1));
+		    "Async-%s complete - hdl=%x portid=%02x%02x%02x mbx1=%x.\n",
+		    type, sp->handle, fcport->d_id.b.domain,
+		    fcport->d_id.b.area, fcport->d_id.b.al_pa,
+		    le16_to_cpu(mbx->mb1));
 
 		data[0] = MBS_COMMAND_COMPLETE;
 		if (ctx->type == SRB_LOGIN_CMD) {
@@ -968,11 +971,10 @@ qla2x00_mbx_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
 	}
 
 	ql_log(ql_log_warn, vha, 0x5046,
-	    "Async-%s failed - portid=%02x%02x%02x status=%x "
-	    "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n",
-	    type, fcport->d_id.b.domain,
-	    fcport->d_id.b.area, fcport->d_id.b.al_pa, status,
-	    le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
+	    "Async-%s failed - hdl=%x portid=%02x%02x%02x status=%x "
+	    "mb0=%x mb1=%x mb2=%x mb6=%x mb7=%x.\n", type, sp->handle,
+	    fcport->d_id.b.domain, fcport->d_id.b.area, fcport->d_id.b.al_pa,
+	    status, le16_to_cpu(mbx->mb0), le16_to_cpu(mbx->mb1),
 	    le16_to_cpu(mbx->mb2), le16_to_cpu(mbx->mb6),
 	    le16_to_cpu(mbx->mb7));
 
@@ -1036,7 +1038,7 @@ qla2x00_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
 			bsg_job->reply->result = DID_ERROR << 16;
 			bsg_job->reply->reply_payload_rcv_len = 0;
 		}
-		ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5058,
+		ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5035,
 		    (uint8_t *)pkt, sizeof(*pkt));
 	} else {
 		bsg_job->reply->result =  DID_OK << 16;
@@ -1111,9 +1113,9 @@ qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
 				le16_to_cpu(((struct els_sts_entry_24xx*)pkt)->total_byte_count);
 
 			ql_log(ql_log_info, vha, 0x503f,
-			    "ELS-CT pass-through-%s error comp_status-status=0x%x "
+			    "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
 			    "error subcode 1=0x%x error subcode 2=0x%x total_byte = 0x%x.\n",
-			    type, comp_status, fw_status[1], fw_status[2],
+			    type, sp->handle, comp_status, fw_status[1], fw_status[2],
 			    le16_to_cpu(((struct els_sts_entry_24xx *)
 				pkt)->total_byte_count));
 			fw_sts_ptr = ((uint8_t*)bsg_job->req->sense) + sizeof(struct fc_bsg_reply);
@@ -1121,9 +1123,9 @@ qla24xx_els_ct_entry(scsi_qla_host_t *vha, struct req_que *req,
 		}
 		else {
 			ql_log(ql_log_info, vha, 0x5040,
-			    "ELS-CT pass-through-%s error comp_status-status=0x%x "
+			    "ELS-CT pass-through-%s error hdl=%x comp_status-status=0x%x "
 			    "error subcode 1=0x%x error subcode 2=0x%x.\n",
-			    type, comp_status,
+			    type, sp->handle, comp_status,
 			    le16_to_cpu(((struct els_sts_entry_24xx *)
 				pkt)->error_subcode_1),
 			    le16_to_cpu(((struct els_sts_entry_24xx *)
@@ -1184,11 +1186,12 @@ qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
 		QLA_LOGIO_LOGIN_RETRIED : 0;
 	if (logio->entry_status) {
 		ql_log(ql_log_warn, vha, 0x5034,
-		    "Async-%s error entry - "
+		    "Async-%s error entry - hdl=%x"
 		    "portid=%02x%02x%02x entry-status=%x.\n",
-		    type, fcport->d_id.b.domain, fcport->d_id.b.area,
-		    fcport->d_id.b.al_pa, logio->entry_status);
-		ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x5059,
+		    type, sp->handle, fcport->d_id.b.domain,
+		    fcport->d_id.b.area, fcport->d_id.b.al_pa,
+		    logio->entry_status);
+		ql_dump_buffer(ql_dbg_async + ql_dbg_buffer, vha, 0x504d,
 		    (uint8_t *)logio, sizeof(*logio));
 
 		goto logio_done;
@@ -1196,10 +1199,9 @@ qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
 
 	if (le16_to_cpu(logio->comp_status) == CS_COMPLETE) {
 		ql_dbg(ql_dbg_async, vha, 0x5036,
-		    "Async-%s complete - portid=%02x%02x%02x "
-		    "iop0=%x.\n",
-		    type, fcport->d_id.b.domain, fcport->d_id.b.area,
-		    fcport->d_id.b.al_pa,
+		    "Async-%s complete - hdl=%x portid=%02x%02x%02x "
+		    "iop0=%x.\n", type, sp->handle, fcport->d_id.b.domain,
+		    fcport->d_id.b.area, fcport->d_id.b.al_pa,
 		    le32_to_cpu(logio->io_parameter[0]));
 
 		data[0] = MBS_COMMAND_COMPLETE;
@@ -1238,9 +1240,8 @@ qla24xx_logio_entry(scsi_qla_host_t *vha, struct req_que *req,
 	}
 
 	ql_dbg(ql_dbg_async, vha, 0x5037,
-	    "Async-%s failed - portid=%02x%02x%02x comp=%x "
-	    "iop0=%x iop1=%x.\n",
-	    type, fcport->d_id.b.domain,
+	    "Async-%s failed - hdl=%x portid=%02x%02x%02x comp=%x "
+	    "iop0=%x iop1=%x.\n", type, sp->handle, fcport->d_id.b.domain,
 	    fcport->d_id.b.area, fcport->d_id.b.al_pa,
 	    le16_to_cpu(logio->comp_status),
 	    le32_to_cpu(logio->io_parameter[0]),
@@ -1274,25 +1275,25 @@ qla24xx_tm_iocb_entry(scsi_qla_host_t *vha, struct req_que *req,
 
 	if (sts->entry_status) {
 		ql_log(ql_log_warn, vha, 0x5038,
-		    "Async-%s error - entry-status(%x).\n",
-		    type, sts->entry_status);
+		    "Async-%s error - hdl=%x entry-status(%x).\n",
+		    type, sp->handle, sts->entry_status);
 	} else if (sts->comp_status != __constant_cpu_to_le16(CS_COMPLETE)) {
 		ql_log(ql_log_warn, vha, 0x5039,
-		    "Async-%s error - completion status(%x).\n",
-		    type, sts->comp_status);
+		    "Async-%s error - hdl=%x completion status(%x).\n",
+		    type, sp->handle, sts->comp_status);
 	} else if (!(le16_to_cpu(sts->scsi_status) &
 	    SS_RESPONSE_INFO_LEN_VALID)) {
 		ql_log(ql_log_warn, vha, 0x503a,
-		    "Async-%s error - no response info(%x).\n",
-		    type, sts->scsi_status);
+		    "Async-%s error - hdl=%x no response info(%x).\n",
+		    type, sp->handle, sts->scsi_status);
 	} else if (le32_to_cpu(sts->rsp_data_len) < 4) {
 		ql_log(ql_log_warn, vha, 0x503b,
-		    "Async-%s error - not enough response(%d).\n",
-		    type, sts->rsp_data_len);
+		    "Async-%s error - hdl=%x not enough response(%d).\n",
+		    type, sp->handle, sts->rsp_data_len);
 	} else if (sts->data[3]) {
 		ql_log(ql_log_warn, vha, 0x503c,
-		    "Async-%s error - response(%x).\n",
-		    type, sts->data[3]);
+		    "Async-%s error - hdl=%x response(%x).\n",
+		    type, sp->handle, sts->data[3]);
 	} else {
 		error = 0;
 	}
@@ -1337,9 +1338,6 @@ qla2x00_process_response_queue(struct rsp_que *rsp)
 		}
 
 		if (pkt->entry_status != 0) {
-			ql_log(ql_log_warn, vha, 0x5035,
-			    "Process error entry.\n");
-
 			qla2x00_error_entry(vha, rsp, pkt);
 			((response_t *)pkt)->signature = RESPONSE_PROCESSED;
 			wmb();
@@ -1391,7 +1389,6 @@ qla2x00_process_response_queue(struct rsp_que *rsp)
 }
 
 static inline void
-
 qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
     uint32_t sense_len, struct rsp_que *rsp)
 {
@@ -1413,13 +1410,14 @@ qla2x00_handle_sense(srb_t *sp, uint8_t *sense_data, uint32_t par_sense_len,
 	if (sp->request_sense_length != 0)
 		rsp->status_srb = sp;
 
-	ql_dbg(ql_dbg_io, vha, 0x301c,
-	    "Check condition Sense data, scsi(%ld:%d:%d:%d) cmd=%p.\n",
-	    sp->fcport->vha->host_no, cp->device->channel, cp->device->id,
-	    cp->device->lun, cp);
-	if (sense_len)
+	if (sense_len) {
+		ql_dbg(ql_dbg_io + ql_dbg_buffer, vha, 0x301c,
+		    "Check condition Sense data, nexus%ld:%d:%d cmd=%p.\n",
+		    sp->fcport->vha->host_no, cp->device->id, cp->device->lun,
+		    cp);
 		ql_dump_buffer(ql_dbg_io + ql_dbg_buffer, vha, 0x302b,
 		    cp->sense_buffer, sense_len);
+	}
 }
 
 struct scsi_dif_tuple {
@@ -1506,7 +1504,7 @@ qla2x00_handle_dif_error(srb_t *sp, struct sts_entry_24xx *sts24)
 			}
 
 			if (k != blocks_done) {
-				qla_printk(KERN_WARNING, sp->fcport->vha->hw,
+				ql_log(ql_log_warn, vha, 0x302f,
 				    "unexpected tag values tag:lba=%x:%llx)\n",
 				    e_ref_tag, (unsigned long long)lba_s);
 				return 1;
@@ -1611,7 +1609,7 @@ qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
 		sp = NULL;
 
 	if (sp == NULL) {
-		ql_log(ql_log_warn, vha, 0x3017,
+		ql_dbg(ql_dbg_io, vha, 0x3017,
 		    "Invalid status handle (0x%x).\n", sts->handle);
 
 		if (IS_QLA82XX(ha))
@@ -1623,7 +1621,7 @@ qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
 	}
 	cp = sp->cmd;
 	if (cp == NULL) {
-		ql_log(ql_log_warn, vha, 0x3018,
+		ql_dbg(ql_dbg_io, vha, 0x3018,
 		    "Command already returned (0x%x/%p).\n",
 		    sts->handle, sp);
 
@@ -1670,7 +1668,7 @@ qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
 			par_sense_len -= rsp_info_len;
 		}
 		if (rsp_info_len > 3 && rsp_info[3]) {
-			ql_log(ql_log_warn, vha, 0x3019,
+			ql_dbg(ql_dbg_io, vha, 0x3019,
 			    "FCP I/O protocol failure (0x%x/0x%x).\n",
 			    rsp_info_len, rsp_info[3]);
 
@@ -1701,7 +1699,7 @@ qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
 			if (!lscsi_status &&
 			    ((unsigned)(scsi_bufflen(cp) - resid) <
 			     cp->underflow)) {
-				ql_log(ql_log_warn, vha, 0x301a,
+				ql_dbg(ql_dbg_io, vha, 0x301a,
 				    "Mid-layer underflow "
 				    "detected (0x%x of 0x%x bytes).\n",
 				    resid, scsi_bufflen(cp));
@@ -1713,7 +1711,7 @@ qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
 		cp->result = DID_OK << 16 | lscsi_status;
 
 		if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
-			ql_log(ql_log_warn, vha, 0x301b,
+			ql_dbg(ql_dbg_io, vha, 0x301b,
 			    "QUEUE FULL detected.\n");
 			break;
 		}
@@ -1735,7 +1733,7 @@ qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
 		scsi_set_resid(cp, resid);
 		if (scsi_status & SS_RESIDUAL_UNDER) {
 			if (IS_FWI2_CAPABLE(ha) && fw_resid_len != resid_len) {
-				ql_log(ql_log_warn, vha, 0x301d,
+				ql_dbg(ql_dbg_io, vha, 0x301d,
 				    "Dropped frame(s) detected "
 				    "(0x%x of 0x%x bytes).\n",
 				    resid, scsi_bufflen(cp));
@@ -1747,7 +1745,7 @@ qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
 			if (!lscsi_status &&
 			    ((unsigned)(scsi_bufflen(cp) - resid) <
 			    cp->underflow)) {
-				ql_log(ql_log_warn, vha, 0x301e,
+				ql_dbg(ql_dbg_io, vha, 0x301e,
 				    "Mid-layer underflow "
 				    "detected (0x%x of 0x%x bytes).\n",
 				    resid, scsi_bufflen(cp));
@@ -1756,7 +1754,7 @@ qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt)
 				break;
 			}
 		} else {
-			ql_log(ql_log_warn, vha, 0x301f,
+			ql_dbg(ql_dbg_io, vha, 0x301f,
 			    "Dropped frame(s) detected (0x%x "
 			    "of 0x%x bytes).\n", resid, scsi_bufflen(cp));
 
@@ -1774,7 +1772,7 @@ check_scsi_status:
 		 */
 		if (lscsi_status != 0) {
 			if (lscsi_status == SAM_STAT_TASK_SET_FULL) {
-				ql_log(ql_log_warn, vha, 0x3020,
+				ql_dbg(ql_dbg_io, vha, 0x3020,
 				    "QUEUE FULL detected.\n");
 				logit = 1;
 				break;
@@ -1838,10 +1836,15 @@ out:
 	if (logit)
 		ql_dbg(ql_dbg_io, vha, 0x3022,
 		    "FCP command status: 0x%x-0x%x (0x%x) "
-		    "oxid=0x%x cdb=%02x%02x%02x len=0x%x "
+		    "nexus=%ld:%d:%d portid=%02x%02x%02x oxid=0x%x "
+		    "cdb=%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x len=0x%x "
 		    "rsp_info=0x%x resid=0x%x fw_resid=0x%x.\n",
-		    comp_status, scsi_status, cp->result, ox_id, cp->cmnd[0],
-		    cp->cmnd[1], cp->cmnd[2], scsi_bufflen(cp), rsp_info_len,
+		    comp_status, scsi_status, cp->result, vha->host_no,
+		    cp->device->id, cp->device->lun, fcport->d_id.b.domain,
+		    fcport->d_id.b.area, fcport->d_id.b.al_pa, ox_id,
+		    cp->cmnd[0], cp->cmnd[1], cp->cmnd[2], cp->cmnd[3],
+		    cp->cmnd[4], cp->cmnd[5], cp->cmnd[6], cp->cmnd[7],
+		    cp->cmnd[8], cp->cmnd[9], scsi_bufflen(cp), rsp_info_len,
 		    resid_len, fw_resid_len);
 
 	if (rsp->status_srb == NULL)
@@ -1899,6 +1902,45 @@ qla2x00_status_cont_entry(struct rsp_que *rsp, sts_cont_entry_t *pkt)
 	}
 }
 
+static int
+qla2x00_free_sp_ctx(scsi_qla_host_t *vha, srb_t *sp)
+{
+	struct qla_hw_data *ha = vha->hw;
+	struct srb_ctx *ctx;
+
+	if (!sp->ctx)
+		return 1;
+
+	ctx = sp->ctx;
+
+	if (ctx->type == SRB_LOGIN_CMD ||
+	    ctx->type == SRB_LOGOUT_CMD ||
+	    ctx->type == SRB_TM_CMD) {
+		ctx->u.iocb_cmd->done(sp);
+		return 0;
+	} else if (ctx->type == SRB_ADISC_CMD) {
+		ctx->u.iocb_cmd->free(sp);
+		return 0;
+	} else {
+		struct fc_bsg_job *bsg_job;
+
+		bsg_job = ctx->u.bsg_job;
+		if (ctx->type == SRB_ELS_CMD_HST ||
+		    ctx->type == SRB_CT_CMD)
+			kfree(sp->fcport);
+
+		bsg_job->reply->reply_data.ctels_reply.status =
+		    FC_CTELS_STATUS_OK;
+		bsg_job->reply->result = DID_ERROR << 16;
+		bsg_job->reply->reply_payload_rcv_len = 0;
+		kfree(sp->ctx);
+		mempool_free(sp, ha->srb_mempool);
+		bsg_job->job_done(bsg_job);
+		return 0;
+	}
+	return 1;
+}
+
 /**
  * qla2x00_error_entry() - Process an error entry.
  * @ha: SCSI driver HA context
@@ -1909,7 +1951,7 @@ qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
 {
 	srb_t *sp;
 	struct qla_hw_data *ha = vha->hw;
-	uint32_t handle = LSW(pkt->handle);
+	const char func[] = "ERROR-IOCB";
 	uint16_t que = MSW(pkt->handle);
 	struct req_que *req = ha->req_q_map[que];
 
@@ -1932,28 +1974,20 @@ qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt)
 		ql_dbg(ql_dbg_async, vha, 0x502f,
 		    "UNKNOWN flag error.\n");
 
-	/* Validate handle. */
-	if (handle < MAX_OUTSTANDING_COMMANDS)
-		sp = req->outstanding_cmds[handle];
-	else
-		sp = NULL;
-
+	sp = qla2x00_get_sp_from_handle(vha, func, req, pkt);
 	if (sp) {
-		/* Free outstanding command slot. */
-		req->outstanding_cmds[handle] = NULL;
-
-		/* Bad payload or header */
-		if (pkt->entry_status &
-		    (RF_INV_E_ORDER | RF_INV_E_COUNT |
-		     RF_INV_E_PARAM | RF_INV_E_TYPE)) {
-			sp->cmd->result = DID_ERROR << 16;
-		} else if (pkt->entry_status & RF_BUSY) {
-			sp->cmd->result = DID_BUS_BUSY << 16;
-		} else {
-			sp->cmd->result = DID_ERROR << 16;
+		if (qla2x00_free_sp_ctx(vha, sp)) {
+			if (pkt->entry_status &
+			    (RF_INV_E_ORDER | RF_INV_E_COUNT |
+			     RF_INV_E_PARAM | RF_INV_E_TYPE)) {
+				sp->cmd->result = DID_ERROR << 16;
+			} else if (pkt->entry_status & RF_BUSY) {
+				sp->cmd->result = DID_BUS_BUSY << 16;
+			} else {
+				sp->cmd->result = DID_ERROR << 16;
+			}
+			qla2x00_sp_compl(ha, sp);
 		}
-		qla2x00_sp_compl(ha, sp);
-
 	} else if (pkt->entry_type == COMMAND_A64_TYPE || pkt->entry_type ==
 		COMMAND_TYPE || pkt->entry_type == COMMAND_TYPE_7
 		|| pkt->entry_type == COMMAND_TYPE_6) {
@@ -1977,26 +2011,30 @@ static void
 qla24xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
 {
 	uint16_t	cnt;
+	uint32_t	mboxes;
 	uint16_t __iomem *wptr;
 	struct qla_hw_data *ha = vha->hw;
 	struct device_reg_24xx __iomem *reg = &ha->iobase->isp24;
 
+	/* Read all mbox registers? */
+	mboxes = (1 << ha->mbx_count) - 1;
+	if (!ha->mcp)
+		ql_dbg(ql_dbg_async, vha, 0x504e, "MBX pointer ERRROR.\n");
+	else
+		mboxes = ha->mcp->in_mb;
+
 	/* Load return mailbox registers. */
 	ha->flags.mbox_int = 1;
 	ha->mailbox_out[0] = mb0;
+	mboxes >>= 1;
 	wptr = (uint16_t __iomem *)&reg->mailbox1;
 
 	for (cnt = 1; cnt < ha->mbx_count; cnt++) {
-		ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
-		wptr++;
-	}
+		if (mboxes & BIT_0)
+			ha->mailbox_out[cnt] = RD_REG_WORD(wptr);
 
-	if (ha->mcp) {
-		ql_dbg(ql_dbg_async, vha, 0x504d,
-		    "Got mailbox completion. cmd=%x.\n", ha->mcp->mb[0]);
-	} else {
-		ql_dbg(ql_dbg_async, vha, 0x504e,
-		    "MBX pointer ERROR.\n");
+		mboxes >>= 1;
+		wptr++;
 	}
 }
 
@@ -2025,9 +2063,6 @@ void qla24xx_process_response_queue(struct scsi_qla_host *vha,
 		}
 
 		if (pkt->entry_status != 0) {
-			ql_dbg(ql_dbg_async, vha, 0x5029,
-			    "Process error entry.\n");
-
 			qla2x00_error_entry(vha, rsp, (sts_entry_t *) pkt);
 			((response_t *)pkt)->signature = RESPONSE_PROCESSED;
 			wmb();
diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c
index 82a33533ed26..34344d3f8658 100644
--- a/drivers/scsi/qla2xxx/qla_mbx.c
+++ b/drivers/scsi/qla2xxx/qla_mbx.c
@@ -2887,7 +2887,7 @@ qla24xx_report_id_acquisition(scsi_qla_host_t *vha,
 		if (vp_idx == 0 && (MSB(stat) != 1))
 			goto reg_needed;
 
-		if (MSB(stat) == 1) {
+		if (MSB(stat) != 0) {
 			ql_dbg(ql_dbg_mbx, vha, 0x10ba,
 			    "Could not acquire ID for VP[%d].\n", vp_idx);
 			return;
diff --git a/drivers/scsi/qla2xxx/qla_nx.c b/drivers/scsi/qla2xxx/qla_nx.c
index 1873940a7ccb..1cd46cd7ff90 100644
--- a/drivers/scsi/qla2xxx/qla_nx.c
+++ b/drivers/scsi/qla2xxx/qla_nx.c
@@ -369,7 +369,7 @@ qla82xx_pci_set_crbwindow_2M(struct qla_hw_data *ha, ulong *off)
 		ql_dbg(ql_dbg_p3p, vha, 0xb000,
 		    "%s: Written crbwin (0x%x) "
 		    "!= Read crbwin (0x%x), off=0x%lx.\n",
-		    ha->crb_win, win_read, *off);
+		    __func__, ha->crb_win, win_read, *off);
 	}
 	*off = (*off & MASK(16)) + CRB_INDIRECT_2M + ha->nx_pcibase;
 }
@@ -409,7 +409,7 @@ qla82xx_pci_set_crbwindow(struct qla_hw_data *ha, u64 off)
 	}
 	/* strange address given */
 	ql_dbg(ql_dbg_p3p, vha, 0xb001,
-	    "%x: Warning: unm_nic_pci_set_crbwindow "
+	    "%s: Warning: unm_nic_pci_set_crbwindow "
 	    "called with an unknown address(%llx).\n",
 	    QLA2XXX_DRIVER_NAME, off);
 	return off;
@@ -1711,12 +1711,12 @@ qla82xx_iospace_config(struct qla_hw_data *ha)
 	ql_dbg_pci(ql_dbg_multiq, ha->pdev, 0xc006,
 	    "nx_pci_base=%p iobase=%p "
 	    "max_req_queues=%d msix_count=%d.\n",
-	    ha->nx_pcibase, ha->iobase,
+	    (void *)ha->nx_pcibase, ha->iobase,
 	    ha->max_req_queues, ha->msix_count);
 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0010,
 	    "nx_pci_base=%p iobase=%p "
 	    "max_req_queues=%d msix_count=%d.\n",
-	    ha->nx_pcibase, ha->iobase,
+	    (void *)ha->nx_pcibase, ha->iobase,
 	    ha->max_req_queues, ha->msix_count);
 	return 0;
 
@@ -1744,7 +1744,7 @@ qla82xx_pci_config(scsi_qla_host_t *vha)
 	ret = pci_set_mwi(ha->pdev);
 	ha->chip_revision = ha->pdev->revision;
 	ql_dbg(ql_dbg_init, vha, 0x0043,
-	    "Chip revision:%ld.\n",
+	    "Chip revision:%d.\n",
 	    ha->chip_revision);
 	return 0;
 }
@@ -2023,13 +2023,9 @@ qla82xx_mbx_completion(scsi_qla_host_t *vha, uint16_t mb0)
 		wptr++;
 	}
 
-	if (ha->mcp) {
-		ql_dbg(ql_dbg_async, vha, 0x5052,
-		    "Got mailbox completion. cmd=%x.\n", ha->mcp->mb[0]);
-	} else {
+	if (!ha->mcp)
 		ql_dbg(ql_dbg_async, vha, 0x5053,
 		    "MBX pointer ERROR.\n");
-	}
 }
 
 /*
@@ -2543,484 +2539,6 @@ qla82xx_start_firmware(scsi_qla_host_t *vha)
 	return qla82xx_check_rcvpeg_state(ha);
 }
 
-static inline int
-qla2xx_build_scsi_type_6_iocbs(srb_t *sp, struct cmd_type_6 *cmd_pkt,
-	uint16_t tot_dsds)
-{
-	uint32_t *cur_dsd = NULL;
-	scsi_qla_host_t	*vha;
-	struct qla_hw_data *ha;
-	struct scsi_cmnd *cmd;
-	struct	scatterlist *cur_seg;
-	uint32_t *dsd_seg;
-	void *next_dsd;
-	uint8_t avail_dsds;
-	uint8_t first_iocb = 1;
-	uint32_t dsd_list_len;
-	struct dsd_dma *dsd_ptr;
-	struct ct6_dsd *ctx;
-
-	cmd = sp->cmd;
-
-	/* Update entry type to indicate Command Type 3 IOCB */
-	*((uint32_t *)(&cmd_pkt->entry_type)) =
-		__constant_cpu_to_le32(COMMAND_TYPE_6);
-
-	/* No data transfer */
-	if (!scsi_bufflen(cmd) || cmd->sc_data_direction == DMA_NONE) {
-		cmd_pkt->byte_count = __constant_cpu_to_le32(0);
-		return 0;
-	}
-
-	vha = sp->fcport->vha;
-	ha = vha->hw;
-
-	/* Set transfer direction */
-	if (cmd->sc_data_direction == DMA_TO_DEVICE) {
-		cmd_pkt->control_flags =
-		    __constant_cpu_to_le16(CF_WRITE_DATA);
-		ha->qla_stats.output_bytes += scsi_bufflen(cmd);
-	} else if (cmd->sc_data_direction == DMA_FROM_DEVICE) {
-		cmd_pkt->control_flags =
-		    __constant_cpu_to_le16(CF_READ_DATA);
-		ha->qla_stats.input_bytes += scsi_bufflen(cmd);
-	}
-
-	cur_seg = scsi_sglist(cmd);
-	ctx = sp->ctx;
-
-	while (tot_dsds) {
-		avail_dsds = (tot_dsds > QLA_DSDS_PER_IOCB) ?
-		    QLA_DSDS_PER_IOCB : tot_dsds;
-		tot_dsds -= avail_dsds;
-		dsd_list_len = (avail_dsds + 1) * QLA_DSD_SIZE;
-
-		dsd_ptr = list_first_entry(&ha->gbl_dsd_list,
-		    struct dsd_dma, list);
-		next_dsd = dsd_ptr->dsd_addr;
-		list_del(&dsd_ptr->list);
-		ha->gbl_dsd_avail--;
-		list_add_tail(&dsd_ptr->list, &ctx->dsd_list);
-		ctx->dsd_use_cnt++;
-		ha->gbl_dsd_inuse++;
-
-		if (first_iocb) {
-			first_iocb = 0;
-			dsd_seg = (uint32_t *)&cmd_pkt->fcp_data_dseg_address;
-			*dsd_seg++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma));
-			*dsd_seg++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma));
-			cmd_pkt->fcp_data_dseg_len = cpu_to_le32(dsd_list_len);
-		} else {
-			*cur_dsd++ = cpu_to_le32(LSD(dsd_ptr->dsd_list_dma));
-			*cur_dsd++ = cpu_to_le32(MSD(dsd_ptr->dsd_list_dma));
-			*cur_dsd++ = cpu_to_le32(dsd_list_len);
-		}
-		cur_dsd = (uint32_t *)next_dsd;
-		while (avail_dsds) {
-			dma_addr_t	sle_dma;
-
-			sle_dma = sg_dma_address(cur_seg);
-			*cur_dsd++ = cpu_to_le32(LSD(sle_dma));
-			*cur_dsd++ = cpu_to_le32(MSD(sle_dma));
-			*cur_dsd++ = cpu_to_le32(sg_dma_len(cur_seg));
-			cur_seg = sg_next(cur_seg);
-			avail_dsds--;
-		}
-	}
-
-	/* Null termination */
-	*cur_dsd++ =  0;
-	*cur_dsd++ = 0;
-	*cur_dsd++ = 0;
-	cmd_pkt->control_flags |= CF_DATA_SEG_DESCR_ENABLE;
-	return 0;
-}
-
-/*
- * qla82xx_calc_dsd_lists() - Determine number of DSD list required
- * for Command Type 6.
- *
- * @dsds: number of data segment decriptors needed
- *
- * Returns the number of dsd list needed to store @dsds.
- */
-inline uint16_t
-qla82xx_calc_dsd_lists(uint16_t dsds)
-{
-	uint16_t dsd_lists = 0;
-
-	dsd_lists = (dsds/QLA_DSDS_PER_IOCB);
-	if (dsds % QLA_DSDS_PER_IOCB)
-		dsd_lists++;
-	return dsd_lists;
-}
-
-/*
- * qla82xx_start_scsi() - Send a SCSI command to the ISP
- * @sp: command to send to the ISP
- *
- * Returns non-zero if a failure occurred, else zero.
- */
-int
-qla82xx_start_scsi(srb_t *sp)
-{
-	int		ret, nseg;
-	unsigned long   flags;
-	struct scsi_cmnd *cmd;
-	uint32_t	*clr_ptr;
-	uint32_t        index;
-	uint32_t	handle;
-	uint16_t	cnt;
-	uint16_t	req_cnt;
-	uint16_t	tot_dsds;
-	struct device_reg_82xx __iomem *reg;
-	uint32_t dbval;
-	uint32_t *fcp_dl;
-	uint8_t additional_cdb_len;
-	struct ct6_dsd *ctx;
-	struct scsi_qla_host *vha = sp->fcport->vha;
-	struct qla_hw_data *ha = vha->hw;
-	struct req_que *req = NULL;
-	struct rsp_que *rsp = NULL;
-	char		tag[2];
-
-	/* Setup device pointers. */
-	ret = 0;
-	reg = &ha->iobase->isp82;
-	cmd = sp->cmd;
-	req = vha->req;
-	rsp = ha->rsp_q_map[0];
-
-	/* So we know we haven't pci_map'ed anything yet */
-	tot_dsds = 0;
-
-	dbval = 0x04 | (ha->portnum << 5);
-
-	/* Send marker if required */
-	if (vha->marker_needed != 0) {
-		if (qla2x00_marker(vha, req,
-			rsp, 0, 0, MK_SYNC_ALL) != QLA_SUCCESS) {
-			ql_log(ql_log_warn, vha, 0x300c,
-			    "qla2x00_marker failed for cmd=%p.\n", cmd);
-			return QLA_FUNCTION_FAILED;
-		}
-		vha->marker_needed = 0;
-	}
-
-	/* Acquire ring specific lock */
-	spin_lock_irqsave(&ha->hardware_lock, flags);
-
-	/* Check for room in outstanding command list. */
-	handle = req->current_outstanding_cmd;
-	for (index = 1; index < MAX_OUTSTANDING_COMMANDS; index++) {
-		handle++;
-		if (handle == MAX_OUTSTANDING_COMMANDS)
-			handle = 1;
-		if (!req->outstanding_cmds[handle])
-			break;
-	}
-	if (index == MAX_OUTSTANDING_COMMANDS)
-		goto queuing_error;
-
-	/* Map the sg table so we have an accurate count of sg entries needed */
-	if (scsi_sg_count(cmd)) {
-		nseg = dma_map_sg(&ha->pdev->dev, scsi_sglist(cmd),
-		    scsi_sg_count(cmd), cmd->sc_data_direction);
-		if (unlikely(!nseg))
-			goto queuing_error;
-	} else
-		nseg = 0;
-
-	tot_dsds = nseg;
-
-	if (tot_dsds > ql2xshiftctondsd) {
-		struct cmd_type_6 *cmd_pkt;
-		uint16_t more_dsd_lists = 0;
-		struct dsd_dma *dsd_ptr;
-		uint16_t i;
-
-		more_dsd_lists = qla82xx_calc_dsd_lists(tot_dsds);
-		if ((more_dsd_lists + ha->gbl_dsd_inuse) >= NUM_DSD_CHAIN) {
-			ql_dbg(ql_dbg_io, vha, 0x300d,
-			    "Num of DSD list %d is than %d for cmd=%p.\n",
-			    more_dsd_lists + ha->gbl_dsd_inuse, NUM_DSD_CHAIN,
-			    cmd);
-			goto queuing_error;
-		}
-
-		if (more_dsd_lists <= ha->gbl_dsd_avail)
-			goto sufficient_dsds;
-		else
-			more_dsd_lists -= ha->gbl_dsd_avail;
-
-		for (i = 0; i < more_dsd_lists; i++) {
-			dsd_ptr = kzalloc(sizeof(struct dsd_dma), GFP_ATOMIC);
-			if (!dsd_ptr) {
-				ql_log(ql_log_fatal, vha, 0x300e,
-				    "Failed to allocate memory for dsd_dma "
-				    "for cmd=%p.\n", cmd);
-				goto queuing_error;
-			}
-
-			dsd_ptr->dsd_addr = dma_pool_alloc(ha->dl_dma_pool,
-				GFP_ATOMIC, &dsd_ptr->dsd_list_dma);
-			if (!dsd_ptr->dsd_addr) {
-				kfree(dsd_ptr);
-				ql_log(ql_log_fatal, vha, 0x300f,
-				    "Failed to allocate memory for dsd_addr "
-				    "for cmd=%p.\n", cmd);
-				goto queuing_error;
-			}
-			list_add_tail(&dsd_ptr->list, &ha->gbl_dsd_list);
-			ha->gbl_dsd_avail++;
-		}
-
-sufficient_dsds:
-		req_cnt = 1;
-
-		if (req->cnt < (req_cnt + 2)) {
-			cnt = (uint16_t)RD_REG_DWORD_RELAXED(
-				&reg->req_q_out[0]);
-			if (req->ring_index < cnt)
-				req->cnt = cnt - req->ring_index;
-			else
-				req->cnt = req->length -
-					(req->ring_index - cnt);
-		}
-
-		if (req->cnt < (req_cnt + 2))
-			goto queuing_error;
-
-		ctx = sp->ctx = mempool_alloc(ha->ctx_mempool, GFP_ATOMIC);
-		if (!sp->ctx) {
-			ql_log(ql_log_fatal, vha, 0x3010,
-			    "Failed to allocate ctx for cmd=%p.\n", cmd);
-			goto queuing_error;
-		}
-		memset(ctx, 0, sizeof(struct ct6_dsd));
-		ctx->fcp_cmnd = dma_pool_alloc(ha->fcp_cmnd_dma_pool,
-			GFP_ATOMIC, &ctx->fcp_cmnd_dma);
-		if (!ctx->fcp_cmnd) {
-			ql_log(ql_log_fatal, vha, 0x3011,
-			    "Failed to allocate fcp_cmnd for cmd=%p.\n", cmd);
-			goto queuing_error_fcp_cmnd;
-		}
-
-		/* Initialize the DSD list and dma handle */
-		INIT_LIST_HEAD(&ctx->dsd_list);
-		ctx->dsd_use_cnt = 0;
-
-		if (cmd->cmd_len > 16) {
-			additional_cdb_len = cmd->cmd_len - 16;
-			if ((cmd->cmd_len % 4) != 0) {
-				/* SCSI command bigger than 16 bytes must be
-				 * multiple of 4
-				 */
-				ql_log(ql_log_warn, vha, 0x3012,
-				    "scsi cmd len %d not multiple of 4 "
-				    "for cmd=%p.\n", cmd->cmd_len, cmd);
-				goto queuing_error_fcp_cmnd;
-			}
-			ctx->fcp_cmnd_len = 12 + cmd->cmd_len + 4;
-		} else {
-			additional_cdb_len = 0;
-			ctx->fcp_cmnd_len = 12 + 16 + 4;
-		}
-
-		cmd_pkt = (struct cmd_type_6 *)req->ring_ptr;
-		cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
-
-		/* Zero out remaining portion of packet. */
-		/*    tagged queuing modifier -- default is TSK_SIMPLE (0). */
-		clr_ptr = (uint32_t *)cmd_pkt + 2;
-		memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
-		cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
-
-		/* Set NPORT-ID and LUN number*/
-		cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
-		cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
-		cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
-		cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
-		cmd_pkt->vp_index = sp->fcport->vp_idx;
-
-		/* Build IOCB segments */
-		if (qla2xx_build_scsi_type_6_iocbs(sp, cmd_pkt, tot_dsds))
-			goto queuing_error_fcp_cmnd;
-
-		int_to_scsilun(sp->cmd->device->lun, &cmd_pkt->lun);
-		host_to_fcp_swap((uint8_t *)&cmd_pkt->lun, sizeof(cmd_pkt->lun));
-
-		/* build FCP_CMND IU */
-		memset(ctx->fcp_cmnd, 0, sizeof(struct fcp_cmnd));
-		int_to_scsilun(sp->cmd->device->lun, &ctx->fcp_cmnd->lun);
-		ctx->fcp_cmnd->additional_cdb_len = additional_cdb_len;
-
-		if (cmd->sc_data_direction == DMA_TO_DEVICE)
-			ctx->fcp_cmnd->additional_cdb_len |= 1;
-		else if (cmd->sc_data_direction == DMA_FROM_DEVICE)
-			ctx->fcp_cmnd->additional_cdb_len |= 2;
-
-		/*
-		 * Update tagged queuing modifier -- default is TSK_SIMPLE (0).
-		 */
-		if (scsi_populate_tag_msg(cmd, tag)) {
-			switch (tag[0]) {
-			case HEAD_OF_QUEUE_TAG:
-				ctx->fcp_cmnd->task_attribute =
-				    TSK_HEAD_OF_QUEUE;
-				break;
-			case ORDERED_QUEUE_TAG:
-				ctx->fcp_cmnd->task_attribute =
-				    TSK_ORDERED;
-				break;
-			}
-		}
-
-		memcpy(ctx->fcp_cmnd->cdb, cmd->cmnd, cmd->cmd_len);
-
-		fcp_dl = (uint32_t *)(ctx->fcp_cmnd->cdb + 16 +
-		    additional_cdb_len);
-		*fcp_dl = htonl((uint32_t)scsi_bufflen(cmd));
-
-		cmd_pkt->fcp_cmnd_dseg_len = cpu_to_le16(ctx->fcp_cmnd_len);
-		cmd_pkt->fcp_cmnd_dseg_address[0] =
-		    cpu_to_le32(LSD(ctx->fcp_cmnd_dma));
-		cmd_pkt->fcp_cmnd_dseg_address[1] =
-		    cpu_to_le32(MSD(ctx->fcp_cmnd_dma));
-
-		sp->flags |= SRB_FCP_CMND_DMA_VALID;
-		cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
-		/* Set total data segment count. */
-		cmd_pkt->entry_count = (uint8_t)req_cnt;
-		/* Specify response queue number where
-		 * completion should happen
-		 */
-		cmd_pkt->entry_status = (uint8_t) rsp->id;
-	} else {
-		struct cmd_type_7 *cmd_pkt;
-		req_cnt = qla24xx_calc_iocbs(vha, tot_dsds);
-		if (req->cnt < (req_cnt + 2)) {
-			cnt = (uint16_t)RD_REG_DWORD_RELAXED(
-			    &reg->req_q_out[0]);
-			if (req->ring_index < cnt)
-				req->cnt = cnt - req->ring_index;
-			else
-				req->cnt = req->length -
-					(req->ring_index - cnt);
-		}
-		if (req->cnt < (req_cnt + 2))
-			goto queuing_error;
-
-		cmd_pkt = (struct cmd_type_7 *)req->ring_ptr;
-		cmd_pkt->handle = MAKE_HANDLE(req->id, handle);
-
-		/* Zero out remaining portion of packet. */
-		/* tagged queuing modifier -- default is TSK_SIMPLE (0).*/
-		clr_ptr = (uint32_t *)cmd_pkt + 2;
-		memset(clr_ptr, 0, REQUEST_ENTRY_SIZE - 8);
-		cmd_pkt->dseg_count = cpu_to_le16(tot_dsds);
-
-		/* Set NPORT-ID and LUN number*/
-		cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id);
-		cmd_pkt->port_id[0] = sp->fcport->d_id.b.al_pa;
-		cmd_pkt->port_id[1] = sp->fcport->d_id.b.area;
-		cmd_pkt->port_id[2] = sp->fcport->d_id.b.domain;
-		cmd_pkt->vp_index = sp->fcport->vp_idx;
-
-		int_to_scsilun(sp->cmd->device->lun, &cmd_pkt->lun);
-		host_to_fcp_swap((uint8_t *)&cmd_pkt->lun,
-			sizeof(cmd_pkt->lun));
-
-		/*
-		 * Update tagged queuing modifier -- default is TSK_SIMPLE (0).
-		 */
-		if (scsi_populate_tag_msg(cmd, tag)) {
-			switch (tag[0]) {
-			case HEAD_OF_QUEUE_TAG:
-				cmd_pkt->task = TSK_HEAD_OF_QUEUE;
-				break;
-			case ORDERED_QUEUE_TAG:
-				cmd_pkt->task = TSK_ORDERED;
-				break;
-			}
-		}
-
-		/* Load SCSI command packet. */
-		memcpy(cmd_pkt->fcp_cdb, cmd->cmnd, cmd->cmd_len);
-		host_to_fcp_swap(cmd_pkt->fcp_cdb, sizeof(cmd_pkt->fcp_cdb));
-
-		cmd_pkt->byte_count = cpu_to_le32((uint32_t)scsi_bufflen(cmd));
-
-		/* Build IOCB segments */
-		qla24xx_build_scsi_iocbs(sp, cmd_pkt, tot_dsds);
-
-		/* Set total data segment count. */
-		cmd_pkt->entry_count = (uint8_t)req_cnt;
-		/* Specify response queue number where
-		 * completion should happen.
-		 */
-		cmd_pkt->entry_status = (uint8_t) rsp->id;
-
-	}
-	/* Build command packet. */
-	req->current_outstanding_cmd = handle;
-	req->outstanding_cmds[handle] = sp;
-	sp->handle = handle;
-	sp->cmd->host_scribble = (unsigned char *)(unsigned long)handle;
-	req->cnt -= req_cnt;
-	wmb();
-
-	/* Adjust ring index. */
-	req->ring_index++;
-	if (req->ring_index == req->length) {
-		req->ring_index = 0;
-		req->ring_ptr = req->ring;
-	} else
-		req->ring_ptr++;
-
-	sp->flags |= SRB_DMA_VALID;
-
-	/* Set chip new ring index. */
-	/* write, read and verify logic */
-	dbval = dbval | (req->id << 8) | (req->ring_index << 16);
-	if (ql2xdbwr)
-		qla82xx_wr_32(ha, ha->nxdb_wr_ptr, dbval);
-	else {
-		WRT_REG_DWORD(
-			(unsigned long __iomem *)ha->nxdb_wr_ptr,
-			dbval);
-		wmb();
-		while (RD_REG_DWORD(ha->nxdb_rd_ptr) != dbval) {
-			WRT_REG_DWORD(
-				(unsigned long __iomem *)ha->nxdb_wr_ptr,
-				dbval);
-			wmb();
-		}
-	}
-
-	/* Manage unprocessed RIO/ZIO commands in response queue. */
-	if (vha->flags.process_response_queue &&
-	    rsp->ring_ptr->signature != RESPONSE_PROCESSED)
-		qla24xx_process_response_queue(vha, rsp);
-
-	spin_unlock_irqrestore(&ha->hardware_lock, flags);
-	return QLA_SUCCESS;
-
-queuing_error_fcp_cmnd:
-	dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd, ctx->fcp_cmnd_dma);
-queuing_error:
-	if (tot_dsds)
-		scsi_dma_unmap(cmd);
-
-	if (sp->ctx) {
-		mempool_free(sp->ctx, ha->ctx_mempool);
-		sp->ctx = NULL;
-	}
-	spin_unlock_irqrestore(&ha->hardware_lock, flags);
-
-	return QLA_FUNCTION_FAILED;
-}
-
 static uint32_t *
 qla82xx_read_flash_data(scsi_qla_host_t *vha, uint32_t *dwptr, uint32_t faddr,
 	uint32_t length)
@@ -3272,9 +2790,9 @@ qla82xx_write_optrom_data(struct scsi_qla_host *vha, uint8_t *buf,
 }
 
 void
-qla82xx_start_iocbs(srb_t *sp)
+qla82xx_start_iocbs(scsi_qla_host_t *vha)
 {
-	struct qla_hw_data *ha = sp->fcport->vha->hw;
+	struct qla_hw_data *ha = vha->hw;
 	struct req_que *req = ha->req_q_map[0];
 	struct device_reg_82xx __iomem *reg;
 	uint32_t dbval;
@@ -3659,11 +3177,10 @@ qla82xx_check_md_needed(scsi_qla_host_t *vha)
 				qla82xx_md_free(vha);
 				/* ALlocate MiniDump resources */
 				qla82xx_md_prep(vha);
-			} else
-				ql_log(ql_log_info, vha, 0xb02e,
-				    "Firmware dump available to retrieve\n",
-				    vha->host_no);
-		}
+			}
+		} else
+			ql_log(ql_log_info, vha, 0xb02e,
+			    "Firmware dump available to retrieve\n");
 	}
 	return rval;
 }
@@ -3758,7 +3275,6 @@ qla82xx_device_state_handler(scsi_qla_host_t *vha)
 
 		switch (dev_state) {
 		case QLA82XX_DEV_READY:
-			qla82xx_check_md_needed(vha);
 			ha->flags.isp82xx_reset_owner = 0;
 			goto exit;
 		case QLA82XX_DEV_COLD:
@@ -4067,7 +3583,7 @@ int qla2x00_wait_for_fcoe_ctx_reset(scsi_qla_host_t *vha)
 		}
 	}
 	ql_dbg(ql_dbg_p3p, vha, 0xb027,
-	    "%s status=%d.\n", status);
+	       "%s: status=%d.\n", __func__, status);
 
 	return status;
 }
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index f9e5b85e84d8..4ed1e4a96b95 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -83,6 +83,9 @@ MODULE_PARM_DESC(ql2xextended_error_logging,
 		"\t\t0x00080000 - P3P Specific.  0x00040000 - Virtual Port.\n"
 		"\t\t0x00020000 - Buffer Dump.   0x00010000 - Misc.\n"
 		"\t\t0x7fffffff - For enabling all logs, can be too many logs.\n"
+		"\t\t0x1e400000 - Preferred value for capturing essential "
+		"debug information (equivalent to old "
+		"ql2xextended_error_logging=1).\n"
 		"\t\tDo LOGICAL OR of the value to enable more than one level");
 
 int ql2xshiftctondsd = 6;
@@ -199,7 +202,7 @@ int ql2xmdcapmask = 0x1F;
 module_param(ql2xmdcapmask, int, S_IRUGO);
 MODULE_PARM_DESC(ql2xmdcapmask,
 		"Set the Minidump driver capture mask level. "
-		"Default is 0x7F - Can be set to 0x3, 0x7, 0xF, 0x1F, 0x7F.");
+		"Default is 0x1F - Can be set to 0x3, 0x7, 0xF, 0x1F, 0x7F.");
 
 int ql2xmdenable = 1;
 module_param(ql2xmdenable, int, S_IRUGO);
@@ -847,14 +850,10 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 	int wait = 0;
 	struct qla_hw_data *ha = vha->hw;
 
-	ql_dbg(ql_dbg_taskm, vha, 0x8000,
-	    "Entered %s for cmd=%p.\n", __func__, cmd);
 	if (!CMD_SP(cmd))
 		return SUCCESS;
 
 	ret = fc_block_scsi_eh(cmd);
-	ql_dbg(ql_dbg_taskm, vha, 0x8001,
-	    "Return value of fc_block_scsi_eh=%d.\n", ret);
 	if (ret != 0)
 		return ret;
 	ret = SUCCESS;
@@ -870,7 +869,8 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 	}
 
 	ql_dbg(ql_dbg_taskm, vha, 0x8002,
-	    "Aborting sp=%p cmd=%p from RISC ", sp, cmd);
+	    "Aborting from RISC nexus=%ld:%d:%d sp=%p cmd=%p\n",
+	    vha->host_no, id, lun, sp, cmd);
 
 	/* Get a reference to the sp and drop the lock.*/
 	sp_get(sp);
@@ -878,10 +878,10 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
 	if (ha->isp_ops->abort_command(sp)) {
 		ql_dbg(ql_dbg_taskm, vha, 0x8003,
-		    "Abort command mbx failed for cmd=%p.\n", cmd);
+		    "Abort command mbx failed cmd=%p.\n", cmd);
 	} else {
 		ql_dbg(ql_dbg_taskm, vha, 0x8004,
-		    "Abort command mbx success.\n");
+		    "Abort command mbx success cmd=%p.\n", cmd);
 		wait = 1;
 	}
 
@@ -897,13 +897,14 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd)
 	if (wait) {
 		if (qla2x00_eh_wait_on_command(cmd) != QLA_SUCCESS) {
 			ql_log(ql_log_warn, vha, 0x8006,
-			    "Abort handler timed out for cmd=%p.\n", cmd);
+			    "Abort handler timed out cmd=%p.\n", cmd);
 			ret = FAILED;
 		}
 	}
 
 	ql_log(ql_log_info, vha, 0x801c,
-	    "Abort command issued --  %d %x.\n", wait, ret);
+	    "Abort command issued nexus=%ld:%d:%d --  %d %x.\n",
+	    vha->host_no, id, lun, wait, ret);
 
 	return ret;
 }
@@ -972,19 +973,15 @@ __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
 	int err;
 
 	if (!fcport) {
-		ql_log(ql_log_warn, vha, 0x8007,
-		    "fcport is NULL.\n");
 		return FAILED;
 	}
 
 	err = fc_block_scsi_eh(cmd);
-	ql_dbg(ql_dbg_taskm, vha, 0x8008,
-	    "fc_block_scsi_eh ret=%d.\n", err);
 	if (err != 0)
 		return err;
 
 	ql_log(ql_log_info, vha, 0x8009,
-	    "%s RESET ISSUED for id %d lun %d cmd=%p.\n", name,
+	    "%s RESET ISSUED nexus=%ld:%d:%d cmd=%p.\n", name, vha->host_no,
 	    cmd->device->id, cmd->device->lun, cmd);
 
 	err = 0;
@@ -1009,15 +1006,16 @@ __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
 	}
 
 	ql_log(ql_log_info, vha, 0x800e,
-	    "%s RESET SUCCEEDED for id %d lun %d cmd=%p.\n", name,
-	    cmd->device->id, cmd->device->lun, cmd);
+	    "%s RESET SUCCEEDED nexus:%ld:%d:%d cmd=%p.\n", name,
+	    vha->host_no, cmd->device->id, cmd->device->lun, cmd);
 
 	return SUCCESS;
 
 eh_reset_failed:
 	ql_log(ql_log_info, vha, 0x800f,
-	    "%s RESET FAILED: %s for id %d lun %d cmd=%p.\n", name,
-	    reset_errors[err], cmd->device->id, cmd->device->lun);
+	    "%s RESET FAILED: %s nexus=%ld:%d:%d cmd=%p.\n", name,
+	    reset_errors[err], vha->host_no, cmd->device->id, cmd->device->lun,
+	    cmd);
 	return FAILED;
 }
 
@@ -1068,20 +1066,16 @@ qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
 	lun = cmd->device->lun;
 
 	if (!fcport) {
-		ql_log(ql_log_warn, vha, 0x8010,
-		    "fcport is NULL.\n");
 		return ret;
 	}
 
 	ret = fc_block_scsi_eh(cmd);
-	ql_dbg(ql_dbg_taskm, vha, 0x8011,
-	    "fc_block_scsi_eh ret=%d.\n", ret);
 	if (ret != 0)
 		return ret;
 	ret = FAILED;
 
 	ql_log(ql_log_info, vha, 0x8012,
-	    "BUS RESET ISSUED for id %d lun %d.\n", id, lun);
+	    "BUS RESET ISSUED nexus=%ld:%d%d.\n", vha->host_no, id, lun);
 
 	if (qla2x00_wait_for_hba_online(vha) != QLA_SUCCESS) {
 		ql_log(ql_log_fatal, vha, 0x8013,
@@ -1105,7 +1099,8 @@ qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
 
 eh_bus_reset_done:
 	ql_log(ql_log_warn, vha, 0x802b,
-	    "BUS RESET %s.\n", (ret == FAILED) ? "FAILED" : "SUCCEDED");
+	    "BUS RESET %s nexus=%ld:%d:%d.\n",
+	    (ret == FAILED) ? "FAILED" : "SUCCEDED", vha->host_no, id, lun);
 
 	return ret;
 }
@@ -1139,20 +1134,16 @@ qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
 	lun = cmd->device->lun;
 
 	if (!fcport) {
-		ql_log(ql_log_warn, vha, 0x8016,
-		    "fcport is NULL.\n");
 		return ret;
 	}
 
 	ret = fc_block_scsi_eh(cmd);
-	ql_dbg(ql_dbg_taskm, vha, 0x8017,
-	    "fc_block_scsi_eh ret=%d.\n", ret);
 	if (ret != 0)
 		return ret;
 	ret = FAILED;
 
 	ql_log(ql_log_info, vha, 0x8018,
-	    "ADAPTER RESET ISSUED for id %d lun %d.\n", id, lun);
+	    "ADAPTER RESET ISSUED nexus=%ld:%d:%d.\n", vha->host_no, id, lun);
 
 	if (qla2x00_wait_for_reset_ready(vha) != QLA_SUCCESS)
 		goto eh_host_reset_lock;
@@ -1193,8 +1184,9 @@ qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
 		ret = SUCCESS;
 
 eh_host_reset_lock:
-	qla_printk(KERN_INFO, ha, "%s: reset %s.\n", __func__,
-	    (ret == FAILED) ? "failed" : "succeeded");
+	ql_log(ql_log_info, vha, 0x8017,
+	    "ADAPTER RESET %s nexus=%ld:%d:%d.\n",
+	    (ret == FAILED) ? "FAILED" : "SUCCEEDED", vha->host_no, id, lun);
 
 	return ret;
 }
@@ -1344,10 +1336,8 @@ static void qla2x00_handle_queue_full(struct scsi_device *sdev, int qdepth)
 		return;
 
 	ql_dbg(ql_dbg_io, fcport->vha, 0x3029,
-	    "Queue depth adjusted-down "
-	    "to %d for scsi(%ld:%d:%d:%d).\n",
-	    sdev->queue_depth, fcport->vha->host_no,
-	    sdev->channel, sdev->id, sdev->lun);
+	    "Queue depth adjusted-down to %d for nexus=%ld:%d:%d.\n",
+	    sdev->queue_depth, fcport->vha->host_no, sdev->id, sdev->lun);
 }
 
 static void qla2x00_adjust_sdev_qdepth_up(struct scsi_device *sdev, int qdepth)
@@ -1369,10 +1359,8 @@ static void qla2x00_adjust_sdev_qdepth_up(struct scsi_device *sdev, int qdepth)
 		scsi_adjust_queue_depth(sdev, MSG_SIMPLE_TAG, qdepth);
 
 	ql_dbg(ql_dbg_io, vha, 0x302a,
-	    "Queue depth adjusted-up to %d for "
-	    "scsi(%ld:%d:%d:%d).\n",
-	    sdev->queue_depth, fcport->vha->host_no,
-	    sdev->channel, sdev->id, sdev->lun);
+	    "Queue depth adjusted-up to %d for nexus=%ld:%d:%d.\n",
+	    sdev->queue_depth, fcport->vha->host_no, sdev->id, sdev->lun);
 }
 
 static int
@@ -1496,6 +1484,118 @@ qla24xx_disable_intrs(struct qla_hw_data *ha)
 	spin_unlock_irqrestore(&ha->hardware_lock, flags);
 }
 
+static int
+qla2x00_iospace_config(struct qla_hw_data *ha)
+{
+	resource_size_t pio;
+	uint16_t msix;
+	int cpus;
+
+	if (IS_QLA82XX(ha))
+		return qla82xx_iospace_config(ha);
+
+	if (pci_request_selected_regions(ha->pdev, ha->bars,
+	    QLA2XXX_DRIVER_NAME)) {
+		ql_log_pci(ql_log_fatal, ha->pdev, 0x0011,
+		    "Failed to reserve PIO/MMIO regions (%s), aborting.\n",
+		    pci_name(ha->pdev));
+		goto iospace_error_exit;
+	}
+	if (!(ha->bars & 1))
+		goto skip_pio;
+
+	/* We only need PIO for Flash operations on ISP2312 v2 chips. */
+	pio = pci_resource_start(ha->pdev, 0);
+	if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
+		if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
+			ql_log_pci(ql_log_warn, ha->pdev, 0x0012,
+			    "Invalid pci I/O region size (%s).\n",
+			    pci_name(ha->pdev));
+			pio = 0;
+		}
+	} else {
+		ql_log_pci(ql_log_warn, ha->pdev, 0x0013,
+		    "Region #0 no a PIO resource (%s).\n",
+		    pci_name(ha->pdev));
+		pio = 0;
+	}
+	ha->pio_address = pio;
+	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0014,
+	    "PIO address=%llu.\n",
+	    (unsigned long long)ha->pio_address);
+
+skip_pio:
+	/* Use MMIO operations for all accesses. */
+	if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
+		ql_log_pci(ql_log_fatal, ha->pdev, 0x0015,
+		    "Region #1 not an MMIO resource (%s), aborting.\n",
+		    pci_name(ha->pdev));
+		goto iospace_error_exit;
+	}
+	if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
+		ql_log_pci(ql_log_fatal, ha->pdev, 0x0016,
+		    "Invalid PCI mem region size (%s), aborting.\n",
+		    pci_name(ha->pdev));
+		goto iospace_error_exit;
+	}
+
+	ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
+	if (!ha->iobase) {
+		ql_log_pci(ql_log_fatal, ha->pdev, 0x0017,
+		    "Cannot remap MMIO (%s), aborting.\n",
+		    pci_name(ha->pdev));
+		goto iospace_error_exit;
+	}
+
+	/* Determine queue resources */
+	ha->max_req_queues = ha->max_rsp_queues = 1;
+	if ((ql2xmaxqueues <= 1 && !ql2xmultique_tag) ||
+		(ql2xmaxqueues > 1 && ql2xmultique_tag) ||
+		(!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
+		goto mqiobase_exit;
+
+	ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
+			pci_resource_len(ha->pdev, 3));
+	if (ha->mqiobase) {
+		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0018,
+		    "MQIO Base=%p.\n", ha->mqiobase);
+		/* Read MSIX vector size of the board */
+		pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
+		ha->msix_count = msix;
+		/* Max queues are bounded by available msix vectors */
+		/* queue 0 uses two msix vectors */
+		if (ql2xmultique_tag) {
+			cpus = num_online_cpus();
+			ha->max_rsp_queues = (ha->msix_count - 1 > cpus) ?
+				(cpus + 1) : (ha->msix_count - 1);
+			ha->max_req_queues = 2;
+		} else if (ql2xmaxqueues > 1) {
+			ha->max_req_queues = ql2xmaxqueues > QLA_MQ_SIZE ?
+			    QLA_MQ_SIZE : ql2xmaxqueues;
+			ql_dbg_pci(ql_dbg_multiq, ha->pdev, 0xc008,
+			    "QoS mode set, max no of request queues:%d.\n",
+			    ha->max_req_queues);
+			ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0019,
+			    "QoS mode set, max no of request queues:%d.\n",
+			    ha->max_req_queues);
+		}
+		ql_log_pci(ql_log_info, ha->pdev, 0x001a,
+		    "MSI-X vector count: %d.\n", msix);
+	} else
+		ql_log_pci(ql_log_info, ha->pdev, 0x001b,
+		    "BAR 3 not enabled.\n");
+
+mqiobase_exit:
+	ha->msix_count = ha->max_rsp_queues + 1;
+	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x001c,
+	    "MSIX Count:%d.\n", ha->msix_count);
+	return (0);
+
+iospace_error_exit:
+	return (-ENOMEM);
+}
+
+
 static struct isp_operations qla2100_isp_ops = {
 	.pci_config		= qla2100_pci_config,
 	.reset_chip		= qla2x00_reset_chip,
@@ -1530,6 +1630,7 @@ static struct isp_operations qla2100_isp_ops = {
 	.get_flash_version	= qla2x00_get_flash_version,
 	.start_scsi		= qla2x00_start_scsi,
 	.abort_isp		= qla2x00_abort_isp,
+	.iospace_config     	= qla2x00_iospace_config,
 };
 
 static struct isp_operations qla2300_isp_ops = {
@@ -1566,6 +1667,7 @@ static struct isp_operations qla2300_isp_ops = {
 	.get_flash_version	= qla2x00_get_flash_version,
 	.start_scsi		= qla2x00_start_scsi,
 	.abort_isp		= qla2x00_abort_isp,
+	.iospace_config     	= qla2x00_iospace_config,
 };
 
 static struct isp_operations qla24xx_isp_ops = {
@@ -1602,6 +1704,7 @@ static struct isp_operations qla24xx_isp_ops = {
 	.get_flash_version	= qla24xx_get_flash_version,
 	.start_scsi		= qla24xx_start_scsi,
 	.abort_isp		= qla2x00_abort_isp,
+	.iospace_config     	= qla2x00_iospace_config,
 };
 
 static struct isp_operations qla25xx_isp_ops = {
@@ -1638,6 +1741,7 @@ static struct isp_operations qla25xx_isp_ops = {
 	.get_flash_version	= qla24xx_get_flash_version,
 	.start_scsi		= qla24xx_dif_start_scsi,
 	.abort_isp		= qla2x00_abort_isp,
+	.iospace_config     	= qla2x00_iospace_config,
 };
 
 static struct isp_operations qla81xx_isp_ops = {
@@ -1674,6 +1778,7 @@ static struct isp_operations qla81xx_isp_ops = {
 	.get_flash_version	= qla24xx_get_flash_version,
 	.start_scsi		= qla24xx_dif_start_scsi,
 	.abort_isp		= qla2x00_abort_isp,
+	.iospace_config     	= qla2x00_iospace_config,
 };
 
 static struct isp_operations qla82xx_isp_ops = {
@@ -1710,6 +1815,7 @@ static struct isp_operations qla82xx_isp_ops = {
 	.get_flash_version	= qla24xx_get_flash_version,
 	.start_scsi             = qla82xx_start_scsi,
 	.abort_isp		= qla82xx_abort_isp,
+	.iospace_config     	= qla82xx_iospace_config,
 };
 
 static inline void
@@ -1819,121 +1925,10 @@ qla2x00_set_isp_flags(struct qla_hw_data *ha)
 	else
 		ha->flags.port0 = 0;
 	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x000b,
-	    "device_type=0x%x port=%d fw_srisc_address=%p.\n",
+	    "device_type=0x%x port=%d fw_srisc_address=0x%x.\n",
 	    ha->device_type, ha->flags.port0, ha->fw_srisc_address);
 }
 
-static int
-qla2x00_iospace_config(struct qla_hw_data *ha)
-{
-	resource_size_t pio;
-	uint16_t msix;
-	int cpus;
-
-	if (IS_QLA82XX(ha))
-		return qla82xx_iospace_config(ha);
-
-	if (pci_request_selected_regions(ha->pdev, ha->bars,
-	    QLA2XXX_DRIVER_NAME)) {
-		ql_log_pci(ql_log_fatal, ha->pdev, 0x0011,
-		    "Failed to reserve PIO/MMIO regions (%s), aborting.\n",
-		    pci_name(ha->pdev));
-		goto iospace_error_exit;
-	}
-	if (!(ha->bars & 1))
-		goto skip_pio;
-
-	/* We only need PIO for Flash operations on ISP2312 v2 chips. */
-	pio = pci_resource_start(ha->pdev, 0);
-	if (pci_resource_flags(ha->pdev, 0) & IORESOURCE_IO) {
-		if (pci_resource_len(ha->pdev, 0) < MIN_IOBASE_LEN) {
-			ql_log_pci(ql_log_warn, ha->pdev, 0x0012,
-			    "Invalid pci I/O region size (%s).\n",
-			    pci_name(ha->pdev));
-			pio = 0;
-		}
-	} else {
-		ql_log_pci(ql_log_warn, ha->pdev, 0x0013,
-		    "Region #0 no a PIO resource (%s).\n",
-		    pci_name(ha->pdev));
-		pio = 0;
-	}
-	ha->pio_address = pio;
-	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0014,
-	    "PIO address=%p.\n",
-	    ha->pio_address);
-
-skip_pio:
-	/* Use MMIO operations for all accesses. */
-	if (!(pci_resource_flags(ha->pdev, 1) & IORESOURCE_MEM)) {
-		ql_log_pci(ql_log_fatal, ha->pdev, 0x0015,
-		    "Region #1 not an MMIO resource (%s), aborting.\n",
-		    pci_name(ha->pdev));
-		goto iospace_error_exit;
-	}
-	if (pci_resource_len(ha->pdev, 1) < MIN_IOBASE_LEN) {
-		ql_log_pci(ql_log_fatal, ha->pdev, 0x0016,
-		    "Invalid PCI mem region size (%s), aborting.\n",
-		    pci_name(ha->pdev));
-		goto iospace_error_exit;
-	}
-
-	ha->iobase = ioremap(pci_resource_start(ha->pdev, 1), MIN_IOBASE_LEN);
-	if (!ha->iobase) {
-		ql_log_pci(ql_log_fatal, ha->pdev, 0x0017,
-		    "Cannot remap MMIO (%s), aborting.\n",
-		    pci_name(ha->pdev));
-		goto iospace_error_exit;
-	}
-
-	/* Determine queue resources */
-	ha->max_req_queues = ha->max_rsp_queues = 1;
-	if ((ql2xmaxqueues <= 1 && !ql2xmultique_tag) ||
-		(ql2xmaxqueues > 1 && ql2xmultique_tag) ||
-		(!IS_QLA25XX(ha) && !IS_QLA81XX(ha)))
-		goto mqiobase_exit;
-
-	ha->mqiobase = ioremap(pci_resource_start(ha->pdev, 3),
-			pci_resource_len(ha->pdev, 3));
-	if (ha->mqiobase) {
-		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0018,
-		    "MQIO Base=%p.\n", ha->mqiobase);
-		/* Read MSIX vector size of the board */
-		pci_read_config_word(ha->pdev, QLA_PCI_MSIX_CONTROL, &msix);
-		ha->msix_count = msix;
-		/* Max queues are bounded by available msix vectors */
-		/* queue 0 uses two msix vectors */
-		if (ql2xmultique_tag) {
-			cpus = num_online_cpus();
-			ha->max_rsp_queues = (ha->msix_count - 1 > cpus) ?
-				(cpus + 1) : (ha->msix_count - 1);
-			ha->max_req_queues = 2;
-		} else if (ql2xmaxqueues > 1) {
-			ha->max_req_queues = ql2xmaxqueues > QLA_MQ_SIZE ?
-			    QLA_MQ_SIZE : ql2xmaxqueues;
-			ql_dbg_pci(ql_dbg_multiq, ha->pdev, 0xc008,
-			    "QoS mode set, max no of request queues:%d.\n",
-			    ha->max_req_queues);
-			ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0019,
-			    "QoS mode set, max no of request queues:%d.\n",
-			    ha->max_req_queues);
-		}
-		ql_log_pci(ql_log_info, ha->pdev, 0x001a,
-		    "MSI-X vector count: %d.\n", msix);
-	} else
-		ql_log_pci(ql_log_info, ha->pdev, 0x001b,
-		    "BAR 3 not enabled.\n");
-
-mqiobase_exit:
-	ha->msix_count = ha->max_rsp_queues + 1;
-	ql_dbg_pci(ql_dbg_init, ha->pdev, 0x001c,
-	    "MSIX Count:%d.\n", ha->msix_count);
-	return (0);
-
-iospace_error_exit:
-	return (-ENOMEM);
-}
-
 static void
 qla2xxx_scan_start(struct Scsi_Host *shost)
 {
@@ -2032,14 +2027,6 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 		pdev->needs_freset = 1;
 	}
 
-	/* Configure PCI I/O space */
-	ret = qla2x00_iospace_config(ha);
-	if (ret)
-		goto probe_hw_failed;
-
-	ql_log_pci(ql_log_info, pdev, 0x001d,
-	    "Found an ISP%04X irq %d iobase 0x%p.\n",
-	    pdev->device, pdev->irq, ha->iobase);
 	ha->prev_topology = 0;
 	ha->init_cb_size = sizeof(init_cb_t);
 	ha->link_data_rate = PORT_SPEED_UNKNOWN;
@@ -2152,6 +2139,15 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	    "flash_data_off=%d, nvram_conf_off=%d, nvram_data_off=%d.\n",
 	    ha->isp_ops, ha->flash_conf_off, ha->flash_data_off,
 	    ha->nvram_conf_off, ha->nvram_data_off);
+
+	/* Configure PCI I/O space */
+	ret = ha->isp_ops->iospace_config(ha);
+	if (ret)
+		goto probe_hw_failed;
+
+	ql_log_pci(ql_log_info, pdev, 0x001d,
+	    "Found an ISP%04X irq %d iobase 0x%p.\n",
+	    pdev->device, pdev->irq, ha->iobase);
 	mutex_init(&ha->vport_lock);
 	init_completion(&ha->mbx_cmd_comp);
 	complete(&ha->mbx_cmd_comp);
@@ -2227,7 +2223,7 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
 	ql_dbg(ql_dbg_init, base_vha, 0x0033,
 	    "max_id=%d this_id=%d "
 	    "cmd_per_len=%d unique_id=%d max_cmd_len=%d max_channel=%d "
-	    "max_lun=%d transportt=%p, vendor_id=%d.\n", host->max_id,
+	    "max_lun=%d transportt=%p, vendor_id=%llu.\n", host->max_id,
 	    host->this_id, host->cmd_per_lun, host->unique_id,
 	    host->max_cmd_len, host->max_channel, host->max_lun,
 	    host->transportt, sht->vendor_id);
@@ -2382,9 +2378,6 @@ skip_dpc:
 
 	qla2x00_dfs_setup(base_vha);
 
-	ql_log(ql_log_info, base_vha, 0x00fa,
-	    "QLogic Fibre Channed HBA Driver: %s.\n",
-	    qla2x00_version_str);
 	ql_log(ql_log_info, base_vha, 0x00fb,
 	    "QLogic %s - %s.\n",
 	    ha->model_number, ha->model_desc ? ha->model_desc : "");
@@ -2833,7 +2826,7 @@ qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len,
 		if (!ha->sns_cmd)
 			goto fail_dma_pool;
 		ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0026,
-		    "sns_cmd.\n", ha->sns_cmd);
+		    "sns_cmd: %p.\n", ha->sns_cmd);
 	} else {
 	/* Get consistent memory allocated for MS IOCB */
 		ha->ms_iocb = dma_pool_alloc(ha->s_dma_pool, GFP_KERNEL,
@@ -3460,27 +3453,21 @@ qla2x00_do_dpc(void *data)
 		schedule();
 		__set_current_state(TASK_RUNNING);
 
-		ql_dbg(ql_dbg_dpc, base_vha, 0x4001,
-		    "DPC handler waking up.\n");
-		ql_dbg(ql_dbg_dpc, base_vha, 0x4002,
-		    "dpc_flags=0x%lx.\n", base_vha->dpc_flags);
-
-		/* Initialization not yet finished. Don't do anything yet. */
-		if (!base_vha->flags.init_done)
-			continue;
+		if (!base_vha->flags.init_done || ha->flags.mbox_busy)
+			goto end_loop;
 
 		if (ha->flags.eeh_busy) {
 			ql_dbg(ql_dbg_dpc, base_vha, 0x4003,
 			    "eeh_busy=%d.\n", ha->flags.eeh_busy);
-			continue;
+			goto end_loop;
 		}
 
 		ha->dpc_active = 1;
 
-		if (ha->flags.mbox_busy) {
-			ha->dpc_active = 0;
-			continue;
-		}
+		ql_dbg(ql_dbg_dpc, base_vha, 0x4001,
+		    "DPC handler waking up.\n");
+		ql_dbg(ql_dbg_dpc, base_vha, 0x4002,
+		    "dpc_flags=0x%lx.\n", base_vha->dpc_flags);
 
 		qla2x00_do_work(base_vha);
 
@@ -3622,6 +3609,7 @@ qla2x00_do_dpc(void *data)
 		qla2x00_do_dpc_all_vps(base_vha);
 
 		ha->dpc_active = 0;
+end_loop:
 		set_current_state(TASK_INTERRUPTIBLE);
 	} /* End of while(1) */
 	__set_current_state(TASK_RUNNING);
@@ -3705,16 +3693,6 @@ qla2x00_sp_free_dma(srb_t *sp)
 		sp->flags &= ~SRB_CRC_CTX_DMA_VALID;
 	}
 
-	CMD_SP(cmd) = NULL;
-}
-
-static void
-qla2x00_sp_final_compl(struct qla_hw_data *ha, srb_t *sp)
-{
-	struct scsi_cmnd *cmd = sp->cmd;
-
-	qla2x00_sp_free_dma(sp);
-
 	if (sp->flags & SRB_FCP_CMND_DMA_VALID) {
 		struct ct6_dsd *ctx = sp->ctx;
 		dma_pool_free(ha->fcp_cmnd_dma_pool, ctx->fcp_cmnd,
@@ -3726,6 +3704,15 @@ qla2x00_sp_final_compl(struct qla_hw_data *ha, srb_t *sp)
 		sp->ctx = NULL;
 	}
 
+	CMD_SP(cmd) = NULL;
+}
+
+static void
+qla2x00_sp_final_compl(struct qla_hw_data *ha, srb_t *sp)
+{
+	struct scsi_cmnd *cmd = sp->cmd;
+
+	qla2x00_sp_free_dma(sp);
 	mempool_free(sp, ha->srb_mempool);
 	cmd->scsi_done(cmd);
 }
diff --git a/drivers/scsi/qla2xxx/qla_sup.c b/drivers/scsi/qla2xxx/qla_sup.c
index eff13563c82d..16bc72844a97 100644
--- a/drivers/scsi/qla2xxx/qla_sup.c
+++ b/drivers/scsi/qla2xxx/qla_sup.c
@@ -904,8 +904,9 @@ no_flash_data:
 	}
 done:
 	ql_dbg(ql_dbg_init, vha, 0x004d,
-	    "FDT[%x]: (0x%x/0x%x) erase=0x%x "
-	    "pr=%x upro=%x wrtd=0x%x blk=0x%x.\n", loc, mid, fid,
+	    "FDT[%s]: (0x%x/0x%x) erase=0x%x "
+	    "pr=%x wrtd=0x%x blk=0x%x.\n",
+	    loc, mid, fid,
 	    ha->fdt_erase_cmd, ha->fdt_protect_sec_cmd,
 	    ha->fdt_wrt_disable, ha->fdt_block_size);
 
diff --git a/drivers/scsi/qla4xxx/ql4_dbg.c b/drivers/scsi/qla4xxx/ql4_dbg.c
index af62c3cf8752..8d58ae274829 100644
--- a/drivers/scsi/qla4xxx/ql4_dbg.c
+++ b/drivers/scsi/qla4xxx/ql4_dbg.c
@@ -20,12 +20,12 @@ void qla4xxx_dump_buffer(void *b, uint32_t size)
 	printk("------------------------------------------------------------"
 	       "--\n");
 	for (cnt = 0; cnt < size; c++) {
-		printk(KERN_INFO "%02x", *c);
+		printk("%02x", *c);
 		if (!(++cnt % 16))
-			printk(KERN_INFO "\n");
+			printk("\n");
 
 		else
-			printk(KERN_INFO "  ");
+			printk("  ");
 	}
 	printk(KERN_INFO "\n");
 }
diff --git a/drivers/scsi/qla4xxx/ql4_def.h b/drivers/scsi/qla4xxx/ql4_def.h
index fd5edc6e166d..22a3ff02e48a 100644
--- a/drivers/scsi/qla4xxx/ql4_def.h
+++ b/drivers/scsi/qla4xxx/ql4_def.h
@@ -177,6 +177,7 @@
 #define LOGIN_TOV			12
 
 #define MAX_RESET_HA_RETRIES		2
+#define FW_ALIVE_WAIT_TOV		3
 
 #define CMD_SP(Cmnd)			((Cmnd)->SCp.ptr)
 
diff --git a/drivers/scsi/qla4xxx/ql4_isr.c b/drivers/scsi/qla4xxx/ql4_isr.c
index 827e93078b94..95828862eea0 100644
--- a/drivers/scsi/qla4xxx/ql4_isr.c
+++ b/drivers/scsi/qla4xxx/ql4_isr.c
@@ -123,13 +123,13 @@ static void qla4xxx_status_entry(struct scsi_qla_host *ha,
 
 	srb = qla4xxx_del_from_active_array(ha, le32_to_cpu(sts_entry->handle));
 	if (!srb) {
-		DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Status Entry invalid "
-			      "handle 0x%x, sp=%p. This cmd may have already "
-			      "been completed.\n", ha->host_no, __func__,
-			      le32_to_cpu(sts_entry->handle), srb));
-		ql4_printk(KERN_WARNING, ha, "%s invalid status entry:"
-		    " handle=0x%0x\n", __func__, sts_entry->handle);
-		set_bit(DPC_RESET_HA, &ha->dpc_flags);
+		ql4_printk(KERN_WARNING, ha, "%s invalid status entry: "
+			   "handle=0x%0x, srb=%p\n", __func__,
+			   sts_entry->handle, srb);
+		if (is_qla8022(ha))
+			set_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags);
+		else
+			set_bit(DPC_RESET_HA, &ha->dpc_flags);
 		return;
 	}
 
@@ -563,7 +563,11 @@ static void qla4xxx_isr_decode_mailbox(struct scsi_qla_host * ha,
 		case MBOX_ASTS_DHCP_LEASE_EXPIRED:
 			DEBUG2(printk("scsi%ld: AEN %04x, ERROR Status, "
 				      "Reset HA\n", ha->host_no, mbox_status));
-			set_bit(DPC_RESET_HA, &ha->dpc_flags);
+			if (is_qla8022(ha))
+				set_bit(DPC_RESET_HA_FW_CONTEXT,
+					&ha->dpc_flags);
+			else
+				set_bit(DPC_RESET_HA, &ha->dpc_flags);
 			break;
 
 		case MBOX_ASTS_LINK_UP:
@@ -617,9 +621,13 @@ static void qla4xxx_isr_decode_mailbox(struct scsi_qla_host * ha,
 			    (mbox_sts[2] == ACB_STATE_ACQUIRING)))
 				set_bit(DPC_GET_DHCP_IP_ADDR, &ha->dpc_flags);
 			else if ((mbox_sts[3] == ACB_STATE_ACQUIRING) &&
-			    (mbox_sts[2] == ACB_STATE_VALID))
-				set_bit(DPC_RESET_HA, &ha->dpc_flags);
-			else if ((mbox_sts[3] == ACB_STATE_UNCONFIGURED))
+				 (mbox_sts[2] == ACB_STATE_VALID)) {
+				if (is_qla8022(ha))
+					set_bit(DPC_RESET_HA_FW_CONTEXT,
+						&ha->dpc_flags);
+				else
+					set_bit(DPC_RESET_HA, &ha->dpc_flags);
+			} else if ((mbox_sts[3] == ACB_STATE_UNCONFIGURED))
 				complete(&ha->disable_acb_comp);
 			break;
 
diff --git a/drivers/scsi/qla4xxx/ql4_nx.c b/drivers/scsi/qla4xxx/ql4_nx.c
index f484ff438199..8d6bc1b2ff17 100644
--- a/drivers/scsi/qla4xxx/ql4_nx.c
+++ b/drivers/scsi/qla4xxx/ql4_nx.c
@@ -1792,8 +1792,11 @@ int qla4_8xxx_device_state_handler(struct scsi_qla_host *ha)
 	int rval = QLA_SUCCESS;
 	unsigned long dev_init_timeout;
 
-	if (!test_bit(AF_INIT_DONE, &ha->flags))
+	if (!test_bit(AF_INIT_DONE, &ha->flags)) {
+		qla4_8xxx_idc_lock(ha);
 		qla4_8xxx_set_drv_active(ha);
+		qla4_8xxx_idc_unlock(ha);
+	}
 
 	dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
 	ql4_printk(KERN_INFO, ha, "1:Device state is 0x%x = %s\n", dev_state,
@@ -1802,8 +1805,8 @@ int qla4_8xxx_device_state_handler(struct scsi_qla_host *ha)
 	/* wait for 30 seconds for device to go ready */
 	dev_init_timeout = jiffies + (ha->nx_dev_init_timeout * HZ);
 
+	qla4_8xxx_idc_lock(ha);
 	while (1) {
-		qla4_8xxx_idc_lock(ha);
 
 		if (time_after_eq(jiffies, dev_init_timeout)) {
 			ql4_printk(KERN_WARNING, ha, "Device init failed!\n");
@@ -1819,15 +1822,14 @@ int qla4_8xxx_device_state_handler(struct scsi_qla_host *ha)
 		/* NOTE: Make sure idc unlocked upon exit of switch statement */
 		switch (dev_state) {
 		case QLA82XX_DEV_READY:
-			qla4_8xxx_idc_unlock(ha);
 			goto exit;
 		case QLA82XX_DEV_COLD:
 			rval = qla4_8xxx_device_bootstrap(ha);
-			qla4_8xxx_idc_unlock(ha);
 			goto exit;
 		case QLA82XX_DEV_INITIALIZING:
 			qla4_8xxx_idc_unlock(ha);
 			msleep(1000);
+			qla4_8xxx_idc_lock(ha);
 			break;
 		case QLA82XX_DEV_NEED_RESET:
 			if (!ql4xdontresethba) {
@@ -1836,32 +1838,37 @@ int qla4_8xxx_device_state_handler(struct scsi_qla_host *ha)
 				 * reset handler */
 				dev_init_timeout = jiffies +
 					(ha->nx_dev_init_timeout * HZ);
+			} else {
+				qla4_8xxx_idc_unlock(ha);
+				msleep(1000);
+				qla4_8xxx_idc_lock(ha);
 			}
-			qla4_8xxx_idc_unlock(ha);
 			break;
 		case QLA82XX_DEV_NEED_QUIESCENT:
-			qla4_8xxx_idc_unlock(ha);
 			/* idc locked/unlocked in handler */
 			qla4_8xxx_need_qsnt_handler(ha);
-			qla4_8xxx_idc_lock(ha);
-			/* fall thru needs idc_locked */
+			break;
 		case QLA82XX_DEV_QUIESCENT:
 			qla4_8xxx_idc_unlock(ha);
 			msleep(1000);
+			qla4_8xxx_idc_lock(ha);
 			break;
 		case QLA82XX_DEV_FAILED:
 			qla4_8xxx_idc_unlock(ha);
 			qla4xxx_dead_adapter_cleanup(ha);
 			rval = QLA_ERROR;
+			qla4_8xxx_idc_lock(ha);
 			goto exit;
 		default:
 			qla4_8xxx_idc_unlock(ha);
 			qla4xxx_dead_adapter_cleanup(ha);
 			rval = QLA_ERROR;
+			qla4_8xxx_idc_lock(ha);
 			goto exit;
 		}
 	}
 exit:
+	qla4_8xxx_idc_unlock(ha);
 	return rval;
 }
 
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index 78bf700b365f..ec393a00c038 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -935,7 +935,16 @@ qla4xxx_iface_set_param(struct Scsi_Host *shost, void *data, uint32_t len)
 		goto exit_init_fw_cb;
 	}
 
-	qla4xxx_disable_acb(ha);
+	rval = qla4xxx_disable_acb(ha);
+	if (rval != QLA_SUCCESS) {
+		ql4_printk(KERN_ERR, ha, "%s: disable acb mbx failed\n",
+			   __func__);
+		rval = -EIO;
+		goto exit_init_fw_cb;
+	}
+
+	wait_for_completion_timeout(&ha->disable_acb_comp,
+				    DISABLE_ACB_TOV * HZ);
 
 	qla4xxx_initcb_to_acb(init_fw_cb);
 
@@ -1966,9 +1975,10 @@ mem_alloc_error_exit:
  *
  * Context: Interrupt
  **/
-static void qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha)
+static int qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha)
 {
-	uint32_t fw_heartbeat_counter, halt_status;
+	uint32_t fw_heartbeat_counter;
+	int status = QLA_SUCCESS;
 
 	fw_heartbeat_counter = qla4_8xxx_rd_32(ha, QLA82XX_PEG_ALIVE_COUNTER);
 	/* If PEG_ALIVE_COUNTER is 0xffffffff, AER/EEH is in progress, ignore */
@@ -1976,7 +1986,7 @@ static void qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha)
 		DEBUG2(printk(KERN_WARNING "scsi%ld: %s: Device in frozen "
 		    "state, QLA82XX_PEG_ALIVE_COUNTER is 0xffffffff\n",
 		    ha->host_no, __func__));
-		return;
+		return status;
 	}
 
 	if (ha->fw_heartbeat_counter == fw_heartbeat_counter) {
@@ -1984,8 +1994,6 @@ static void qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha)
 		/* FW not alive after 2 seconds */
 		if (ha->seconds_since_last_heartbeat == 2) {
 			ha->seconds_since_last_heartbeat = 0;
-			halt_status = qla4_8xxx_rd_32(ha,
-						      QLA82XX_PEG_HALT_STATUS1);
 
 			ql4_printk(KERN_INFO, ha,
 				   "scsi(%ld): %s, Dumping hw/fw registers:\n "
@@ -1993,7 +2001,9 @@ static void qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha)
 				   " 0x%x,\n PEG_NET_0_PC: 0x%x, PEG_NET_1_PC:"
 				   " 0x%x,\n PEG_NET_2_PC: 0x%x, PEG_NET_3_PC:"
 				   " 0x%x,\n PEG_NET_4_PC: 0x%x\n",
-				   ha->host_no, __func__, halt_status,
+				   ha->host_no, __func__,
+				   qla4_8xxx_rd_32(ha,
+						   QLA82XX_PEG_HALT_STATUS1),
 				   qla4_8xxx_rd_32(ha,
 						   QLA82XX_PEG_HALT_STATUS2),
 				   qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_0 +
@@ -2006,24 +2016,13 @@ static void qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha)
 						   0x3c),
 				   qla4_8xxx_rd_32(ha, QLA82XX_CRB_PEG_NET_4 +
 						   0x3c));
-
-			/* Since we cannot change dev_state in interrupt
-			 * context, set appropriate DPC flag then wakeup
-			 * DPC */
-			if (halt_status & HALT_STATUS_UNRECOVERABLE)
-				set_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
-			else {
-				printk("scsi%ld: %s: detect abort needed!\n",
-				    ha->host_no, __func__);
-				set_bit(DPC_RESET_HA, &ha->dpc_flags);
-			}
-			qla4xxx_wake_dpc(ha);
-			qla4xxx_mailbox_premature_completion(ha);
+			status = QLA_ERROR;
 		}
 	} else
 		ha->seconds_since_last_heartbeat = 0;
 
 	ha->fw_heartbeat_counter = fw_heartbeat_counter;
+	return status;
 }
 
 /**
@@ -2034,14 +2033,13 @@ static void qla4_8xxx_check_fw_alive(struct scsi_qla_host *ha)
  **/
 void qla4_8xxx_watchdog(struct scsi_qla_host *ha)
 {
-	uint32_t dev_state;
-
-	dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
+	uint32_t dev_state, halt_status;
 
 	/* don't poll if reset is going on */
 	if (!(test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
 	    test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
 	    test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags))) {
+		dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
 		if (dev_state == QLA82XX_DEV_NEED_RESET &&
 		    !test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
 			if (!ql4xdontresethba) {
@@ -2049,7 +2047,6 @@ void qla4_8xxx_watchdog(struct scsi_qla_host *ha)
 				    "NEED RESET!\n", __func__);
 				set_bit(DPC_RESET_HA, &ha->dpc_flags);
 				qla4xxx_wake_dpc(ha);
-				qla4xxx_mailbox_premature_completion(ha);
 			}
 		} else if (dev_state == QLA82XX_DEV_NEED_QUIESCENT &&
 		    !test_bit(DPC_HA_NEED_QUIESCENT, &ha->dpc_flags)) {
@@ -2059,7 +2056,24 @@ void qla4_8xxx_watchdog(struct scsi_qla_host *ha)
 			qla4xxx_wake_dpc(ha);
 		} else  {
 			/* Check firmware health */
-			qla4_8xxx_check_fw_alive(ha);
+			if (qla4_8xxx_check_fw_alive(ha)) {
+				halt_status = qla4_8xxx_rd_32(ha,
+						QLA82XX_PEG_HALT_STATUS1);
+
+				/* Since we cannot change dev_state in interrupt
+				 * context, set appropriate DPC flag then wakeup
+				 * DPC */
+				if (halt_status & HALT_STATUS_UNRECOVERABLE)
+					set_bit(DPC_HA_UNRECOVERABLE,
+						&ha->dpc_flags);
+				else {
+					ql4_printk(KERN_INFO, ha, "%s: detect "
+						   "abort needed!\n", __func__);
+					set_bit(DPC_RESET_HA, &ha->dpc_flags);
+				}
+				qla4xxx_mailbox_premature_completion(ha);
+				qla4xxx_wake_dpc(ha);
+			}
 		}
 	}
 }
@@ -2414,6 +2428,8 @@ static int qla4xxx_recover_adapter(struct scsi_qla_host *ha)
 {
 	int status = QLA_ERROR;
 	uint8_t reset_chip = 0;
+	uint32_t dev_state;
+	unsigned long wait;
 
 	/* Stall incoming I/O until we are done */
 	scsi_block_requests(ha->host);
@@ -2464,8 +2480,29 @@ static int qla4xxx_recover_adapter(struct scsi_qla_host *ha)
 	 * or if stop_firmware fails for ISP-82xx.
 	 * This is the default case for ISP-4xxx */
 	if (!is_qla8022(ha) || reset_chip) {
+		if (!is_qla8022(ha))
+			goto chip_reset;
+
+		/* Check if 82XX firmware is alive or not
+		 * We may have arrived here from NEED_RESET
+		 * detection only */
+		if (test_bit(AF_FW_RECOVERY, &ha->flags))
+			goto chip_reset;
+
+		wait = jiffies + (FW_ALIVE_WAIT_TOV * HZ);
+		while (time_before(jiffies, wait)) {
+			if (qla4_8xxx_check_fw_alive(ha)) {
+				qla4xxx_mailbox_premature_completion(ha);
+				break;
+			}
+
+			set_current_state(TASK_UNINTERRUPTIBLE);
+			schedule_timeout(HZ);
+		}
+
 		if (!test_bit(AF_FW_RECOVERY, &ha->flags))
 			qla4xxx_cmd_wait(ha);
+chip_reset:
 		qla4xxx_process_aen(ha, FLUSH_DDB_CHANGED_AENS);
 		qla4xxx_abort_active_cmds(ha, DID_RESET << 16);
 		DEBUG2(ql4_printk(KERN_INFO, ha,
@@ -2501,6 +2538,25 @@ recover_ha_init_adapter:
 		 * Since we don't want to block the DPC for too long
 		 * with multiple resets in the same thread,
 		 * utilize DPC to retry */
+		if (is_qla8022(ha)) {
+			qla4_8xxx_idc_lock(ha);
+			dev_state = qla4_8xxx_rd_32(ha, QLA82XX_CRB_DEV_STATE);
+			qla4_8xxx_idc_unlock(ha);
+			if (dev_state == QLA82XX_DEV_FAILED) {
+				ql4_printk(KERN_INFO, ha, "%s: don't retry "
+					   "recover adapter. H/W is in Failed "
+					   "state\n", __func__);
+				qla4xxx_dead_adapter_cleanup(ha);
+				clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
+				clear_bit(DPC_RESET_HA, &ha->dpc_flags);
+				clear_bit(DPC_RESET_HA_FW_CONTEXT,
+						&ha->dpc_flags);
+				status = QLA_ERROR;
+
+				goto exit_recover;
+			}
+		}
+
 		if (!test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags)) {
 			ha->retry_reset_ha_cnt = MAX_RESET_HA_RETRIES;
 			DEBUG2(printk("scsi%ld: recover adapter - retrying "
@@ -2539,6 +2595,7 @@ recover_ha_init_adapter:
 		clear_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags);
 	}
 
+exit_recover:
 	ha->adapter_error_count++;
 
 	if (test_bit(AF_ONLINE, &ha->flags))
@@ -2806,6 +2863,7 @@ dpc_post_reset_ha:
  **/
 static void qla4xxx_free_adapter(struct scsi_qla_host *ha)
 {
+	qla4xxx_abort_active_cmds(ha, DID_NO_CONNECT << 16);
 
 	if (test_bit(AF_INTERRUPTS_ON, &ha->flags)) {
 		/* Turn-off interrupts on the card. */
@@ -4816,6 +4874,20 @@ static int qla4xxx_eh_target_reset(struct scsi_cmnd *cmd)
 }
 
 /**
+ * qla4xxx_is_eh_active - check if error handler is running
+ * @shost: Pointer to SCSI Host struct
+ *
+ * This routine finds that if reset host is called in EH
+ * scenario or from some application like sg_reset
+ **/
+static int qla4xxx_is_eh_active(struct Scsi_Host *shost)
+{
+	if (shost->shost_state == SHOST_RECOVERY)
+		return 1;
+	return 0;
+}
+
+/**
  * qla4xxx_eh_host_reset - kernel callback
  * @cmd: Pointer to Linux's SCSI command structure
  *
@@ -4832,6 +4904,11 @@ static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd)
 	if (ql4xdontresethba) {
 		DEBUG2(printk("scsi%ld: %s: Don't Reset HBA\n",
 		     ha->host_no, __func__));
+
+		/* Clear outstanding srb in queues */
+		if (qla4xxx_is_eh_active(cmd->device->host))
+			qla4xxx_abort_active_cmds(ha, DID_ABORT << 16);
+
 		return FAILED;
 	}
 
diff --git a/drivers/scsi/qla4xxx/ql4_version.h b/drivers/scsi/qla4xxx/ql4_version.h
index 5254e57968f5..26a3fa34a33c 100644
--- a/drivers/scsi/qla4xxx/ql4_version.h
+++ b/drivers/scsi/qla4xxx/ql4_version.h
@@ -5,4 +5,4 @@
  * See LICENSE.qla4xxx for copyright and licensing details.
  */
 
-#define QLA4XXX_DRIVER_VERSION	"5.02.00-k9"
+#define QLA4XXX_DRIVER_VERSION	"5.02.00-k10"
diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c
index dc6131e6a1ba..5f84a148eb14 100644
--- a/drivers/scsi/scsi_error.c
+++ b/drivers/scsi/scsi_error.c
@@ -1812,7 +1812,7 @@ int scsi_error_handler(void *data)
 		 * what we need to do to get it up and online again (if we can).
 		 * If we fail, we end up taking the thing offline.
 		 */
-		if (scsi_autopm_get_host(shost) != 0) {
+		if (!shost->eh_noresume && scsi_autopm_get_host(shost) != 0) {
 			SCSI_LOG_ERROR_RECOVERY(1,
 				printk(KERN_ERR "Error handler scsi_eh_%d "
 						"unable to autoresume\n",
@@ -1833,7 +1833,8 @@ int scsi_error_handler(void *data)
 		 * which are still online.
 		 */
 		scsi_restart_operations(shost);
-		scsi_autopm_put_host(shost);
+		if (!shost->eh_noresume)
+			scsi_autopm_put_host(shost);
 		set_current_state(TASK_INTERRUPTIBLE);
 	}
 	__set_current_state(TASK_RUNNING);
diff --git a/drivers/scsi/scsi_pm.c b/drivers/scsi/scsi_pm.c
index d329f8b12e2b..bf8bf79e6a1f 100644
--- a/drivers/scsi/scsi_pm.c
+++ b/drivers/scsi/scsi_pm.c
@@ -49,8 +49,22 @@ static int scsi_bus_suspend_common(struct device *dev, pm_message_t msg)
 {
 	int err = 0;
 
-	if (scsi_is_sdev_device(dev))
+	if (scsi_is_sdev_device(dev)) {
+		/*
+		 * sd is the only high-level SCSI driver to implement runtime
+		 * PM, and sd treats runtime suspend, system suspend, and
+		 * system hibernate identically (but not system freeze).
+		 */
+		if (pm_runtime_suspended(dev)) {
+			if (msg.event == PM_EVENT_SUSPEND ||
+			    msg.event == PM_EVENT_HIBERNATE)
+				return 0;	/* already suspended */
+
+			/* wake up device so that FREEZE will succeed */
+			pm_runtime_resume(dev);
+		}
 		err = scsi_dev_type_suspend(dev, msg);
+	}
 	return err;
 }
 
@@ -58,8 +72,17 @@ static int scsi_bus_resume_common(struct device *dev)
 {
 	int err = 0;
 
-	if (scsi_is_sdev_device(dev))
+	if (scsi_is_sdev_device(dev)) {
+		/*
+		 * Parent device may have runtime suspended as soon as
+		 * it is woken up during the system resume.
+		 *
+		 * Resume it on behalf of child.
+		 */
+		pm_runtime_get_sync(dev->parent);
 		err = scsi_dev_type_resume(dev);
+		pm_runtime_put_sync(dev->parent);
+	}
 
 	if (err == 0) {
 		pm_runtime_disable(dev);
diff --git a/drivers/scsi/scsi_priv.h b/drivers/scsi/scsi_priv.h
index 2a588955423a..68eadd1c67fd 100644
--- a/drivers/scsi/scsi_priv.h
+++ b/drivers/scsi/scsi_priv.h
@@ -45,7 +45,6 @@ static inline void scsi_log_completion(struct scsi_cmnd *cmd, int disposition)
 enum {
 	SCSI_DEVINFO_GLOBAL = 0,
 	SCSI_DEVINFO_SPI,
-	SCSI_DEVINFO_DH,
 };
 
 extern int scsi_get_device_flags(struct scsi_device *sdev,
diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
index e8447fbc31f3..cfd491437239 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -1030,6 +1030,7 @@ iscsi_alloc_session(struct Scsi_Host *shost, struct iscsi_transport *transport,
 		return NULL;
 
 	session->transport = transport;
+	session->creator = -1;
 	session->recovery_tmo = 120;
 	session->state = ISCSI_SESSION_FREE;
 	INIT_DELAYED_WORK(&session->recovery_work, session_recovery_timedout);
@@ -1634,8 +1635,9 @@ EXPORT_SYMBOL_GPL(iscsi_session_event);
 
 static int
 iscsi_if_create_session(struct iscsi_internal *priv, struct iscsi_endpoint *ep,
-			struct iscsi_uevent *ev, uint32_t initial_cmdsn,
-			uint16_t cmds_max, uint16_t queue_depth)
+			struct iscsi_uevent *ev, pid_t pid,
+			uint32_t initial_cmdsn,	uint16_t cmds_max,
+			uint16_t queue_depth)
 {
 	struct iscsi_transport *transport = priv->iscsi_transport;
 	struct iscsi_cls_session *session;
@@ -1646,6 +1648,7 @@ iscsi_if_create_session(struct iscsi_internal *priv, struct iscsi_endpoint *ep,
 	if (!session)
 		return -ENOMEM;
 
+	session->creator = pid;
 	shost = iscsi_session_to_shost(session);
 	ev->r.c_session_ret.host_no = shost->host_no;
 	ev->r.c_session_ret.sid = session->sid;
@@ -1938,6 +1941,7 @@ iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, uint32_t *group)
 	switch (nlh->nlmsg_type) {
 	case ISCSI_UEVENT_CREATE_SESSION:
 		err = iscsi_if_create_session(priv, ep, ev,
+					      NETLINK_CREDS(skb)->pid,
 					      ev->u.c_session.initial_cmdsn,
 					      ev->u.c_session.cmds_max,
 					      ev->u.c_session.queue_depth);
@@ -1950,6 +1954,7 @@ iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, uint32_t *group)
 		}
 
 		err = iscsi_if_create_session(priv, ep, ev,
+					NETLINK_CREDS(skb)->pid,
 					ev->u.c_bound_session.initial_cmdsn,
 					ev->u.c_bound_session.cmds_max,
 					ev->u.c_bound_session.queue_depth);
@@ -2298,6 +2303,15 @@ show_priv_session_state(struct device *dev, struct device_attribute *attr,
 }
 static ISCSI_CLASS_ATTR(priv_sess, state, S_IRUGO, show_priv_session_state,
 			NULL);
+static ssize_t
+show_priv_session_creator(struct device *dev, struct device_attribute *attr,
+			char *buf)
+{
+	struct iscsi_cls_session *session = iscsi_dev_to_session(dev->parent);
+	return sprintf(buf, "%d\n", session->creator);
+}
+static ISCSI_CLASS_ATTR(priv_sess, creator, S_IRUGO, show_priv_session_creator,
+			NULL);
 
 #define iscsi_priv_session_attr_show(field, format)			\
 static ssize_t								\
@@ -2367,6 +2381,7 @@ static struct attribute *iscsi_session_attrs[] = {
 	&dev_attr_sess_targetalias.attr,
 	&dev_attr_priv_sess_recovery_tmo.attr,
 	&dev_attr_priv_sess_state.attr,
+	&dev_attr_priv_sess_creator.attr,
 	NULL,
 };
 
@@ -2424,6 +2439,8 @@ static umode_t iscsi_session_attr_is_visible(struct kobject *kobj,
 		return S_IRUGO | S_IWUSR;
 	else if (attr == &dev_attr_priv_sess_state.attr)
 		return S_IRUGO;
+	else if (attr == &dev_attr_priv_sess_creator.attr)
+		return S_IRUGO;
 	else {
 		WARN_ONCE(1, "Invalid session attr");
 		return 0;
diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c
index fa3a5918009c..7b3f8075e2a5 100644
--- a/drivers/scsi/sd.c
+++ b/drivers/scsi/sd.c
@@ -50,6 +50,7 @@
 #include <linux/string_helpers.h>
 #include <linux/async.h>
 #include <linux/slab.h>
+#include <linux/pm_runtime.h>
 #include <asm/uaccess.h>
 #include <asm/unaligned.h>
 
@@ -2741,6 +2742,9 @@ static void sd_shutdown(struct device *dev)
 	if (!sdkp)
 		return;         /* this can happen */
 
+	if (pm_runtime_suspended(dev))
+		goto exit;
+
 	if (sdkp->WCE) {
 		sd_printk(KERN_NOTICE, sdkp, "Synchronizing SCSI cache\n");
 		sd_sync_cache(sdkp);
@@ -2751,6 +2755,7 @@ static void sd_shutdown(struct device *dev)
 		sd_start_stop_device(sdkp, 0);
 	}
 
+exit:
 	scsi_disk_put(sdkp);
 }
 
diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index 019a7163572f..dcf7e1006426 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -971,6 +971,7 @@ static int __init s3c64xx_spi_probe(struct platform_device *pdev)
 	struct s3c64xx_spi_info *sci;
 	struct spi_master *master;
 	int ret;
+	char clk_name[16];
 
 	if (pdev->id < 0) {
 		dev_err(&pdev->dev,
@@ -984,11 +985,6 @@ static int __init s3c64xx_spi_probe(struct platform_device *pdev)
 	}
 
 	sci = pdev->dev.platform_data;
-	if (!sci->src_clk_name) {
-		dev_err(&pdev->dev,
-			"Board init must call s3c64xx_spi_set_info()\n");
-		return -EINVAL;
-	}
 
 	/* Check for availability of necessary resource */
 
@@ -1073,17 +1069,17 @@ static int __init s3c64xx_spi_probe(struct platform_device *pdev)
 		goto err4;
 	}
 
-	sdd->src_clk = clk_get(&pdev->dev, sci->src_clk_name);
+	sprintf(clk_name, "spi_busclk%d", sci->src_clk_nr);
+	sdd->src_clk = clk_get(&pdev->dev, clk_name);
 	if (IS_ERR(sdd->src_clk)) {
 		dev_err(&pdev->dev,
-			"Unable to acquire clock '%s'\n", sci->src_clk_name);
+			"Unable to acquire clock '%s'\n", clk_name);
 		ret = PTR_ERR(sdd->src_clk);
 		goto err5;
 	}
 
 	if (clk_enable(sdd->src_clk)) {
-		dev_err(&pdev->dev, "Couldn't enable clock '%s'\n",
-							sci->src_clk_name);
+		dev_err(&pdev->dev, "Couldn't enable clock '%s'\n", clk_name);
 		ret = -EBUSY;
 		goto err6;
 	}
diff --git a/drivers/staging/Kconfig b/drivers/staging/Kconfig
index 25cdff36a78a..21e2f4b87f14 100644
--- a/drivers/staging/Kconfig
+++ b/drivers/staging/Kconfig
@@ -72,8 +72,6 @@ source "drivers/staging/octeon/Kconfig"
 
 source "drivers/staging/serqt_usb2/Kconfig"
 
-source "drivers/staging/spectra/Kconfig"
-
 source "drivers/staging/quatech_usb2/Kconfig"
 
 source "drivers/staging/vt6655/Kconfig"
@@ -116,8 +114,6 @@ source "drivers/staging/bcm/Kconfig"
 
 source "drivers/staging/ft1000/Kconfig"
 
-source "drivers/staging/intel_sst/Kconfig"
-
 source "drivers/staging/speakup/Kconfig"
 
 source "drivers/staging/cptm1217/Kconfig"
@@ -132,4 +128,8 @@ source "drivers/staging/nvec/Kconfig"
 
 source "drivers/staging/media/Kconfig"
 
+source "drivers/staging/omapdrm/Kconfig"
+
+source "drivers/staging/android/Kconfig"
+
 endif # STAGING
diff --git a/drivers/staging/Makefile b/drivers/staging/Makefile
index a25f3f26c7ff..7c5808d7212d 100644
--- a/drivers/staging/Makefile
+++ b/drivers/staging/Makefile
@@ -21,7 +21,6 @@ obj-$(CONFIG_RTL8192E)		+= rtl8192e/
 obj-$(CONFIG_R8712U)		+= rtl8712/
 obj-$(CONFIG_RTS_PSTOR)		+= rts_pstor/
 obj-$(CONFIG_RTS5139)		+= rts5139/
-obj-$(CONFIG_SPECTRA)		+= spectra/
 obj-$(CONFIG_TRANZPORT)		+= frontier/
 obj-$(CONFIG_POHMELFS)		+= pohmelfs/
 obj-$(CONFIG_IDE_PHISON)	+= phison/
@@ -50,10 +49,11 @@ obj-$(CONFIG_SBE_2T3E3)		+= sbe-2t3e3/
 obj-$(CONFIG_USB_ENESTORAGE)	+= keucr/
 obj-$(CONFIG_BCM_WIMAX)		+= bcm/
 obj-$(CONFIG_FT1000)		+= ft1000/
-obj-$(CONFIG_SND_INTEL_SST)	+= intel_sst/
 obj-$(CONFIG_SPEAKUP)		+= speakup/
 obj-$(CONFIG_TOUCHSCREEN_CLEARPAD_TM1217)	+= cptm1217/
 obj-$(CONFIG_TOUCHSCREEN_SYNAPTICS_I2C_RMI4)	+= ste_rmi4/
 obj-$(CONFIG_DRM_PSB)		+= gma500/
 obj-$(CONFIG_INTEL_MEI)		+= mei/
 obj-$(CONFIG_MFD_NVEC)		+= nvec/
+obj-$(CONFIG_DRM_OMAP)		+= omapdrm/
+obj-$(CONFIG_ANDROID)		+= android/
diff --git a/drivers/staging/android/Kconfig b/drivers/staging/android/Kconfig
new file mode 100644
index 000000000000..becf711117ef
--- /dev/null
+++ b/drivers/staging/android/Kconfig
@@ -0,0 +1,110 @@
+menu "Android"
+
+config ANDROID
+	bool "Android Drivers"
+	default N
+	---help---
+	  Enable support for various drivers needed on the Android platform
+
+if ANDROID
+
+config ANDROID_BINDER_IPC
+	bool "Android Binder IPC Driver"
+	default n
+
+config ASHMEM
+	bool "Enable the Anonymous Shared Memory Subsystem"
+	default n
+	depends on SHMEM || TINY_SHMEM
+	help
+	  The ashmem subsystem is a new shared memory allocator, similar to
+	  POSIX SHM but with different behavior and sporting a simpler
+	  file-based API.
+
+config ANDROID_LOGGER
+	tristate "Android log driver"
+	default n
+
+config ANDROID_RAM_CONSOLE
+	bool "Android RAM buffer console"
+	default n
+
+config ANDROID_RAM_CONSOLE_ENABLE_VERBOSE
+	bool "Enable verbose console messages on Android RAM console"
+	default y
+	depends on ANDROID_RAM_CONSOLE
+
+menuconfig ANDROID_RAM_CONSOLE_ERROR_CORRECTION
+	bool "Android RAM Console Enable error correction"
+	default n
+	depends on ANDROID_RAM_CONSOLE
+	depends on !ANDROID_RAM_CONSOLE_EARLY_INIT
+	select REED_SOLOMON
+	select REED_SOLOMON_ENC8
+	select REED_SOLOMON_DEC8
+
+if ANDROID_RAM_CONSOLE_ERROR_CORRECTION
+
+config ANDROID_RAM_CONSOLE_ERROR_CORRECTION_DATA_SIZE
+	int "Android RAM Console Data data size"
+	default 128
+	help
+	  Must be a power of 2.
+
+config ANDROID_RAM_CONSOLE_ERROR_CORRECTION_ECC_SIZE
+	int "Android RAM Console ECC size"
+	default 16
+
+config ANDROID_RAM_CONSOLE_ERROR_CORRECTION_SYMBOL_SIZE
+	int "Android RAM Console Symbol size"
+	default 8
+
+config ANDROID_RAM_CONSOLE_ERROR_CORRECTION_POLYNOMIAL
+	hex "Android RAM Console Polynomial"
+	default 0x19 if (ANDROID_RAM_CONSOLE_ERROR_CORRECTION_SYMBOL_SIZE = 4)
+	default 0x29 if (ANDROID_RAM_CONSOLE_ERROR_CORRECTION_SYMBOL_SIZE = 5)
+	default 0x61 if (ANDROID_RAM_CONSOLE_ERROR_CORRECTION_SYMBOL_SIZE = 6)
+	default 0x89 if (ANDROID_RAM_CONSOLE_ERROR_CORRECTION_SYMBOL_SIZE = 7)
+	default 0x11d if (ANDROID_RAM_CONSOLE_ERROR_CORRECTION_SYMBOL_SIZE = 8)
+
+endif # ANDROID_RAM_CONSOLE_ERROR_CORRECTION
+
+config ANDROID_RAM_CONSOLE_EARLY_INIT
+	bool "Start Android RAM console early"
+	default n
+	depends on ANDROID_RAM_CONSOLE
+
+config ANDROID_RAM_CONSOLE_EARLY_ADDR
+	hex "Android RAM console virtual address"
+	default 0
+	depends on ANDROID_RAM_CONSOLE_EARLY_INIT
+
+config ANDROID_RAM_CONSOLE_EARLY_SIZE
+	hex "Android RAM console buffer size"
+	default 0
+	depends on ANDROID_RAM_CONSOLE_EARLY_INIT
+
+config ANDROID_TIMED_OUTPUT
+	bool "Timed output class driver"
+	default y
+
+config ANDROID_TIMED_GPIO
+	tristate "Android timed gpio driver"
+	depends on GENERIC_GPIO && ANDROID_TIMED_OUTPUT
+	default n
+
+config ANDROID_LOW_MEMORY_KILLER
+	bool "Android Low Memory Killer"
+	default N
+	---help---
+	  Register processes to be killed when memory is low
+
+config ANDROID_PMEM
+	bool "Android pmem allocator"
+	depends on ARM
+
+source "drivers/staging/android/switch/Kconfig"
+
+endif # if ANDROID
+
+endmenu
diff --git a/drivers/staging/android/Makefile b/drivers/staging/android/Makefile
new file mode 100644
index 000000000000..eaed1ff64f0f
--- /dev/null
+++ b/drivers/staging/android/Makefile
@@ -0,0 +1,9 @@
+obj-$(CONFIG_ANDROID_BINDER_IPC)	+= binder.o
+obj-$(CONFIG_ASHMEM)			+= ashmem.o
+obj-$(CONFIG_ANDROID_LOGGER)		+= logger.o
+obj-$(CONFIG_ANDROID_RAM_CONSOLE)	+= ram_console.o
+obj-$(CONFIG_ANDROID_TIMED_OUTPUT)	+= timed_output.o
+obj-$(CONFIG_ANDROID_TIMED_GPIO)	+= timed_gpio.o
+obj-$(CONFIG_ANDROID_LOW_MEMORY_KILLER)	+= lowmemorykiller.o
+obj-$(CONFIG_ANDROID_PMEM)		+= pmem.o
+obj-$(CONFIG_ANDROID_SWITCH)		+= switch/
diff --git a/drivers/staging/android/TODO b/drivers/staging/android/TODO
new file mode 100644
index 000000000000..e59c5be4be2b
--- /dev/null
+++ b/drivers/staging/android/TODO
@@ -0,0 +1,10 @@
+TODO:
+	- checkpatch.pl cleanups
+	- sparse fixes
+	- rename files to be not so "generic"
+	- make sure things build as modules properly
+	- add proper arch dependancies as needed
+	- audit userspace interfaces to make sure they are sane
+
+Please send patches to Greg Kroah-Hartman <greg@kroah.com> and Cc:
+Brian Swetland <swetland@google.com>
diff --git a/drivers/staging/android/android_pmem.h b/drivers/staging/android/android_pmem.h
new file mode 100644
index 000000000000..f633621f5be3
--- /dev/null
+++ b/drivers/staging/android/android_pmem.h
@@ -0,0 +1,93 @@
+/* include/linux/android_pmem.h
+ *
+ * Copyright (C) 2007 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of 
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef _ANDROID_PMEM_H_
+#define _ANDROID_PMEM_H_
+
+#define PMEM_IOCTL_MAGIC 'p'
+#define PMEM_GET_PHYS		_IOW(PMEM_IOCTL_MAGIC, 1, unsigned int)
+#define PMEM_MAP		_IOW(PMEM_IOCTL_MAGIC, 2, unsigned int)
+#define PMEM_GET_SIZE		_IOW(PMEM_IOCTL_MAGIC, 3, unsigned int)
+#define PMEM_UNMAP		_IOW(PMEM_IOCTL_MAGIC, 4, unsigned int)
+/* This ioctl will allocate pmem space, backing the file, it will fail
+ * if the file already has an allocation, pass it the len as the argument
+ * to the ioctl */
+#define PMEM_ALLOCATE		_IOW(PMEM_IOCTL_MAGIC, 5, unsigned int)
+/* This will connect a one pmem file to another, pass the file that is already
+ * backed in memory as the argument to the ioctl
+ */
+#define PMEM_CONNECT		_IOW(PMEM_IOCTL_MAGIC, 6, unsigned int)
+/* Returns the total size of the pmem region it is sent to as a pmem_region
+ * struct (with offset set to 0). 
+ */
+#define PMEM_GET_TOTAL_SIZE	_IOW(PMEM_IOCTL_MAGIC, 7, unsigned int)
+#define PMEM_CACHE_FLUSH	_IOW(PMEM_IOCTL_MAGIC, 8, unsigned int)
+
+struct android_pmem_platform_data
+{
+	const char* name;
+	/* starting physical address of memory region */
+	unsigned long start;
+	/* size of memory region */
+	unsigned long size;
+	/* set to indicate the region should not be managed with an allocator */
+	unsigned no_allocator;
+	/* set to indicate maps of this region should be cached, if a mix of
+	 * cached and uncached is desired, set this and open the device with
+	 * O_SYNC to get an uncached region */
+	unsigned cached;
+	/* The MSM7k has bits to enable a write buffer in the bus controller*/
+	unsigned buffered;
+};
+
+struct pmem_region {
+	unsigned long offset;
+	unsigned long len;
+};
+
+#ifdef CONFIG_ANDROID_PMEM
+int is_pmem_file(struct file *file);
+int get_pmem_file(int fd, unsigned long *start, unsigned long *vstart,
+		  unsigned long *end, struct file **filp);
+int get_pmem_user_addr(struct file *file, unsigned long *start,
+		       unsigned long *end);
+void put_pmem_file(struct file* file);
+void flush_pmem_file(struct file *file, unsigned long start, unsigned long len);
+int pmem_setup(struct android_pmem_platform_data *pdata,
+	       long (*ioctl)(struct file *, unsigned int, unsigned long),
+	       int (*release)(struct inode *, struct file *));
+int pmem_remap(struct pmem_region *region, struct file *file,
+	       unsigned operation);
+
+#else
+static inline int is_pmem_file(struct file *file) { return 0; }
+static inline int get_pmem_file(int fd, unsigned long *start,
+				unsigned long *vstart, unsigned long *end,
+				struct file **filp) { return -ENOSYS; }
+static inline int get_pmem_user_addr(struct file *file, unsigned long *start,
+				     unsigned long *end) { return -ENOSYS; }
+static inline void put_pmem_file(struct file* file) { return; }
+static inline void flush_pmem_file(struct file *file, unsigned long start,
+				   unsigned long len) { return; }
+static inline int pmem_setup(struct android_pmem_platform_data *pdata,
+	      long (*ioctl)(struct file *, unsigned int, unsigned long),
+	      int (*release)(struct inode *, struct file *)) { return -ENOSYS; }
+
+static inline int pmem_remap(struct pmem_region *region, struct file *file,
+			     unsigned operation) { return -ENOSYS; }
+#endif
+
+#endif //_ANDROID_PPP_H_
+
diff --git a/drivers/staging/android/ashmem.c b/drivers/staging/android/ashmem.c
new file mode 100644
index 000000000000..99052bfd3a2d
--- /dev/null
+++ b/drivers/staging/android/ashmem.c
@@ -0,0 +1,752 @@
+/* mm/ashmem.c
+**
+** Anonymous Shared Memory Subsystem, ashmem
+**
+** Copyright (C) 2008 Google, Inc.
+**
+** Robert Love <rlove@google.com>
+**
+** This software is licensed under the terms of the GNU General Public
+** License version 2, as published by the Free Software Foundation, and
+** may be copied, distributed, and modified under those terms.
+**
+** This program is distributed in the hope that it will be useful,
+** but WITHOUT ANY WARRANTY; without even the implied warranty of
+** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+** GNU General Public License for more details.
+*/
+
+#include <linux/module.h>
+#include <linux/file.h>
+#include <linux/fs.h>
+#include <linux/miscdevice.h>
+#include <linux/security.h>
+#include <linux/mm.h>
+#include <linux/mman.h>
+#include <linux/uaccess.h>
+#include <linux/personality.h>
+#include <linux/bitops.h>
+#include <linux/mutex.h>
+#include <linux/shmem_fs.h>
+#include "ashmem.h"
+
+#define ASHMEM_NAME_PREFIX "dev/ashmem/"
+#define ASHMEM_NAME_PREFIX_LEN (sizeof(ASHMEM_NAME_PREFIX) - 1)
+#define ASHMEM_FULL_NAME_LEN (ASHMEM_NAME_LEN + ASHMEM_NAME_PREFIX_LEN)
+
+/*
+ * ashmem_area - anonymous shared memory area
+ * Lifecycle: From our parent file's open() until its release()
+ * Locking: Protected by `ashmem_mutex'
+ * Big Note: Mappings do NOT pin this structure; it dies on close()
+ */
+struct ashmem_area {
+	char name[ASHMEM_FULL_NAME_LEN]; /* optional name in /proc/pid/maps */
+	struct list_head unpinned_list;	 /* list of all ashmem areas */
+	struct file *file;		 /* the shmem-based backing file */
+	size_t size;			 /* size of the mapping, in bytes */
+	unsigned long prot_mask;	 /* allowed prot bits, as vm_flags */
+};
+
+/*
+ * ashmem_range - represents an interval of unpinned (evictable) pages
+ * Lifecycle: From unpin to pin
+ * Locking: Protected by `ashmem_mutex'
+ */
+struct ashmem_range {
+	struct list_head lru;		/* entry in LRU list */
+	struct list_head unpinned;	/* entry in its area's unpinned list */
+	struct ashmem_area *asma;	/* associated area */
+	size_t pgstart;			/* starting page, inclusive */
+	size_t pgend;			/* ending page, inclusive */
+	unsigned int purged;		/* ASHMEM_NOT or ASHMEM_WAS_PURGED */
+};
+
+/* LRU list of unpinned pages, protected by ashmem_mutex */
+static LIST_HEAD(ashmem_lru_list);
+
+/* Count of pages on our LRU list, protected by ashmem_mutex */
+static unsigned long lru_count;
+
+/*
+ * ashmem_mutex - protects the list of and each individual ashmem_area
+ *
+ * Lock Ordering: ashmex_mutex -> i_mutex -> i_alloc_sem
+ */
+static DEFINE_MUTEX(ashmem_mutex);
+
+static struct kmem_cache *ashmem_area_cachep __read_mostly;
+static struct kmem_cache *ashmem_range_cachep __read_mostly;
+
+#define range_size(range) \
+	((range)->pgend - (range)->pgstart + 1)
+
+#define range_on_lru(range) \
+	((range)->purged == ASHMEM_NOT_PURGED)
+
+#define page_range_subsumes_range(range, start, end) \
+	(((range)->pgstart >= (start)) && ((range)->pgend <= (end)))
+
+#define page_range_subsumed_by_range(range, start, end) \
+	(((range)->pgstart <= (start)) && ((range)->pgend >= (end)))
+
+#define page_in_range(range, page) \
+	(((range)->pgstart <= (page)) && ((range)->pgend >= (page)))
+
+#define page_range_in_range(range, start, end) \
+	(page_in_range(range, start) || page_in_range(range, end) || \
+		page_range_subsumes_range(range, start, end))
+
+#define range_before_page(range, page) \
+	((range)->pgend < (page))
+
+#define PROT_MASK		(PROT_EXEC | PROT_READ | PROT_WRITE)
+
+static inline void lru_add(struct ashmem_range *range)
+{
+	list_add_tail(&range->lru, &ashmem_lru_list);
+	lru_count += range_size(range);
+}
+
+static inline void lru_del(struct ashmem_range *range)
+{
+	list_del(&range->lru);
+	lru_count -= range_size(range);
+}
+
+/*
+ * range_alloc - allocate and initialize a new ashmem_range structure
+ *
+ * 'asma' - associated ashmem_area
+ * 'prev_range' - the previous ashmem_range in the sorted asma->unpinned list
+ * 'purged' - initial purge value (ASMEM_NOT_PURGED or ASHMEM_WAS_PURGED)
+ * 'start' - starting page, inclusive
+ * 'end' - ending page, inclusive
+ *
+ * Caller must hold ashmem_mutex.
+ */
+static int range_alloc(struct ashmem_area *asma,
+		       struct ashmem_range *prev_range, unsigned int purged,
+		       size_t start, size_t end)
+{
+	struct ashmem_range *range;
+
+	range = kmem_cache_zalloc(ashmem_range_cachep, GFP_KERNEL);
+	if (unlikely(!range))
+		return -ENOMEM;
+
+	range->asma = asma;
+	range->pgstart = start;
+	range->pgend = end;
+	range->purged = purged;
+
+	list_add_tail(&range->unpinned, &prev_range->unpinned);
+
+	if (range_on_lru(range))
+		lru_add(range);
+
+	return 0;
+}
+
+static void range_del(struct ashmem_range *range)
+{
+	list_del(&range->unpinned);
+	if (range_on_lru(range))
+		lru_del(range);
+	kmem_cache_free(ashmem_range_cachep, range);
+}
+
+/*
+ * range_shrink - shrinks a range
+ *
+ * Caller must hold ashmem_mutex.
+ */
+static inline void range_shrink(struct ashmem_range *range,
+				size_t start, size_t end)
+{
+	size_t pre = range_size(range);
+
+	range->pgstart = start;
+	range->pgend = end;
+
+	if (range_on_lru(range))
+		lru_count -= pre - range_size(range);
+}
+
+static int ashmem_open(struct inode *inode, struct file *file)
+{
+	struct ashmem_area *asma;
+	int ret;
+
+	ret = generic_file_open(inode, file);
+	if (unlikely(ret))
+		return ret;
+
+	asma = kmem_cache_zalloc(ashmem_area_cachep, GFP_KERNEL);
+	if (unlikely(!asma))
+		return -ENOMEM;
+
+	INIT_LIST_HEAD(&asma->unpinned_list);
+	memcpy(asma->name, ASHMEM_NAME_PREFIX, ASHMEM_NAME_PREFIX_LEN);
+	asma->prot_mask = PROT_MASK;
+	file->private_data = asma;
+
+	return 0;
+}
+
+static int ashmem_release(struct inode *ignored, struct file *file)
+{
+	struct ashmem_area *asma = file->private_data;
+	struct ashmem_range *range, *next;
+
+	mutex_lock(&ashmem_mutex);
+	list_for_each_entry_safe(range, next, &asma->unpinned_list, unpinned)
+		range_del(range);
+	mutex_unlock(&ashmem_mutex);
+
+	if (asma->file)
+		fput(asma->file);
+	kmem_cache_free(ashmem_area_cachep, asma);
+
+	return 0;
+}
+
+static ssize_t ashmem_read(struct file *file, char __user *buf,
+			   size_t len, loff_t *pos)
+{
+	struct ashmem_area *asma = file->private_data;
+	int ret = 0;
+
+	mutex_lock(&ashmem_mutex);
+
+	/* If size is not set, or set to 0, always return EOF. */
+	if (asma->size == 0)
+		goto out;
+
+	if (!asma->file) {
+		ret = -EBADF;
+		goto out;
+	}
+
+	ret = asma->file->f_op->read(asma->file, buf, len, pos);
+	if (ret < 0)
+		goto out;
+
+	/** Update backing file pos, since f_ops->read() doesn't */
+	asma->file->f_pos = *pos;
+
+out:
+	mutex_unlock(&ashmem_mutex);
+	return ret;
+}
+
+static loff_t ashmem_llseek(struct file *file, loff_t offset, int origin)
+{
+	struct ashmem_area *asma = file->private_data;
+	int ret;
+
+	mutex_lock(&ashmem_mutex);
+
+	if (asma->size == 0) {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	if (!asma->file) {
+		ret = -EBADF;
+		goto out;
+	}
+
+	ret = asma->file->f_op->llseek(asma->file, offset, origin);
+	if (ret < 0)
+		goto out;
+
+	/** Copy f_pos from backing file, since f_ops->llseek() sets it */
+	file->f_pos = asma->file->f_pos;
+
+out:
+	mutex_unlock(&ashmem_mutex);
+	return ret;
+}
+
+static inline unsigned long calc_vm_may_flags(unsigned long prot)
+{
+	return _calc_vm_trans(prot, PROT_READ,  VM_MAYREAD) |
+	       _calc_vm_trans(prot, PROT_WRITE, VM_MAYWRITE) |
+	       _calc_vm_trans(prot, PROT_EXEC,  VM_MAYEXEC);
+}
+
+static int ashmem_mmap(struct file *file, struct vm_area_struct *vma)
+{
+	struct ashmem_area *asma = file->private_data;
+	int ret = 0;
+
+	mutex_lock(&ashmem_mutex);
+
+	/* user needs to SET_SIZE before mapping */
+	if (unlikely(!asma->size)) {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	/* requested protection bits must match our allowed protection mask */
+	if (unlikely((vma->vm_flags & ~calc_vm_prot_bits(asma->prot_mask)) &
+		     calc_vm_prot_bits(PROT_MASK))) {
+		ret = -EPERM;
+		goto out;
+	}
+	vma->vm_flags &= ~calc_vm_may_flags(~asma->prot_mask);
+
+	if (!asma->file) {
+		char *name = ASHMEM_NAME_DEF;
+		struct file *vmfile;
+
+		if (asma->name[ASHMEM_NAME_PREFIX_LEN] != '\0')
+			name = asma->name;
+
+		/* ... and allocate the backing shmem file */
+		vmfile = shmem_file_setup(name, asma->size, vma->vm_flags);
+		if (unlikely(IS_ERR(vmfile))) {
+			ret = PTR_ERR(vmfile);
+			goto out;
+		}
+		asma->file = vmfile;
+	}
+	get_file(asma->file);
+
+	/*
+	 * XXX - Reworked to use shmem_zero_setup() instead of 
+	 * shmem_set_file while we're in staging. -jstultz
+	 */
+	if (vma->vm_flags & VM_SHARED) {
+		ret = shmem_zero_setup(vma);
+		if (ret) {
+			fput(asma->file);
+			goto out;
+		}
+	}
+
+	if (vma->vm_file)
+		fput(vma->vm_file);
+	vma->vm_file = asma->file;
+	vma->vm_flags |= VM_CAN_NONLINEAR;
+
+out:
+	mutex_unlock(&ashmem_mutex);
+	return ret;
+}
+
+/*
+ * ashmem_shrink - our cache shrinker, called from mm/vmscan.c :: shrink_slab
+ *
+ * 'nr_to_scan' is the number of objects (pages) to prune, or 0 to query how
+ * many objects (pages) we have in total.
+ *
+ * 'gfp_mask' is the mask of the allocation that got us into this mess.
+ *
+ * Return value is the number of objects (pages) remaining, or -1 if we cannot
+ * proceed without risk of deadlock (due to gfp_mask).
+ *
+ * We approximate LRU via least-recently-unpinned, jettisoning unpinned partial
+ * chunks of ashmem regions LRU-wise one-at-a-time until we hit 'nr_to_scan'
+ * pages freed.
+ */
+static int ashmem_shrink(struct shrinker *s, struct shrink_control *sc)
+{
+	struct ashmem_range *range, *next;
+
+	/* We might recurse into filesystem code, so bail out if necessary */
+	if (sc->nr_to_scan && !(sc->gfp_mask & __GFP_FS))
+		return -1;
+	if (!sc->nr_to_scan)
+		return lru_count;
+
+	mutex_lock(&ashmem_mutex);
+	list_for_each_entry_safe(range, next, &ashmem_lru_list, lru) {
+		struct inode *inode = range->asma->file->f_dentry->d_inode;
+		loff_t start = range->pgstart * PAGE_SIZE;
+		loff_t end = (range->pgend + 1) * PAGE_SIZE - 1;
+
+		vmtruncate_range(inode, start, end);
+		range->purged = ASHMEM_WAS_PURGED;
+		lru_del(range);
+
+		sc->nr_to_scan -= range_size(range);
+		if (sc->nr_to_scan <= 0)
+			break;
+	}
+	mutex_unlock(&ashmem_mutex);
+
+	return lru_count;
+}
+
+static struct shrinker ashmem_shrinker = {
+	.shrink = ashmem_shrink,
+	.seeks = DEFAULT_SEEKS * 4,
+};
+
+static int set_prot_mask(struct ashmem_area *asma, unsigned long prot)
+{
+	int ret = 0;
+
+	mutex_lock(&ashmem_mutex);
+
+	/* the user can only remove, not add, protection bits */
+	if (unlikely((asma->prot_mask & prot) != prot)) {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	/* does the application expect PROT_READ to imply PROT_EXEC? */
+	if ((prot & PROT_READ) && (current->personality & READ_IMPLIES_EXEC))
+		prot |= PROT_EXEC;
+
+	asma->prot_mask = prot;
+
+out:
+	mutex_unlock(&ashmem_mutex);
+	return ret;
+}
+
+static int set_name(struct ashmem_area *asma, void __user *name)
+{
+	int ret = 0;
+
+	mutex_lock(&ashmem_mutex);
+
+	/* cannot change an existing mapping's name */
+	if (unlikely(asma->file)) {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	if (unlikely(copy_from_user(asma->name + ASHMEM_NAME_PREFIX_LEN,
+				    name, ASHMEM_NAME_LEN)))
+		ret = -EFAULT;
+	asma->name[ASHMEM_FULL_NAME_LEN-1] = '\0';
+
+out:
+	mutex_unlock(&ashmem_mutex);
+
+	return ret;
+}
+
+static int get_name(struct ashmem_area *asma, void __user *name)
+{
+	int ret = 0;
+
+	mutex_lock(&ashmem_mutex);
+	if (asma->name[ASHMEM_NAME_PREFIX_LEN] != '\0') {
+		size_t len;
+
+		/*
+		 * Copying only `len', instead of ASHMEM_NAME_LEN, bytes
+		 * prevents us from revealing one user's stack to another.
+		 */
+		len = strlen(asma->name + ASHMEM_NAME_PREFIX_LEN) + 1;
+		if (unlikely(copy_to_user(name,
+				asma->name + ASHMEM_NAME_PREFIX_LEN, len)))
+			ret = -EFAULT;
+	} else {
+		if (unlikely(copy_to_user(name, ASHMEM_NAME_DEF,
+					  sizeof(ASHMEM_NAME_DEF))))
+			ret = -EFAULT;
+	}
+	mutex_unlock(&ashmem_mutex);
+
+	return ret;
+}
+
+/*
+ * ashmem_pin - pin the given ashmem region, returning whether it was
+ * previously purged (ASHMEM_WAS_PURGED) or not (ASHMEM_NOT_PURGED).
+ *
+ * Caller must hold ashmem_mutex.
+ */
+static int ashmem_pin(struct ashmem_area *asma, size_t pgstart, size_t pgend)
+{
+	struct ashmem_range *range, *next;
+	int ret = ASHMEM_NOT_PURGED;
+
+	list_for_each_entry_safe(range, next, &asma->unpinned_list, unpinned) {
+		/* moved past last applicable page; we can short circuit */
+		if (range_before_page(range, pgstart))
+			break;
+
+		/*
+		 * The user can ask us to pin pages that span multiple ranges,
+		 * or to pin pages that aren't even unpinned, so this is messy.
+		 *
+		 * Four cases:
+		 * 1. The requested range subsumes an existing range, so we
+		 *    just remove the entire matching range.
+		 * 2. The requested range overlaps the start of an existing
+		 *    range, so we just update that range.
+		 * 3. The requested range overlaps the end of an existing
+		 *    range, so we just update that range.
+		 * 4. The requested range punches a hole in an existing range,
+		 *    so we have to update one side of the range and then
+		 *    create a new range for the other side.
+		 */
+		if (page_range_in_range(range, pgstart, pgend)) {
+			ret |= range->purged;
+
+			/* Case #1: Easy. Just nuke the whole thing. */
+			if (page_range_subsumes_range(range, pgstart, pgend)) {
+				range_del(range);
+				continue;
+			}
+
+			/* Case #2: We overlap from the start, so adjust it */
+			if (range->pgstart >= pgstart) {
+				range_shrink(range, pgend + 1, range->pgend);
+				continue;
+			}
+
+			/* Case #3: We overlap from the rear, so adjust it */
+			if (range->pgend <= pgend) {
+				range_shrink(range, range->pgstart, pgstart-1);
+				continue;
+			}
+
+			/*
+			 * Case #4: We eat a chunk out of the middle. A bit
+			 * more complicated, we allocate a new range for the
+			 * second half and adjust the first chunk's endpoint.
+			 */
+			range_alloc(asma, range, range->purged,
+				    pgend + 1, range->pgend);
+			range_shrink(range, range->pgstart, pgstart - 1);
+			break;
+		}
+	}
+
+	return ret;
+}
+
+/*
+ * ashmem_unpin - unpin the given range of pages. Returns zero on success.
+ *
+ * Caller must hold ashmem_mutex.
+ */
+static int ashmem_unpin(struct ashmem_area *asma, size_t pgstart, size_t pgend)
+{
+	struct ashmem_range *range, *next;
+	unsigned int purged = ASHMEM_NOT_PURGED;
+
+restart:
+	list_for_each_entry_safe(range, next, &asma->unpinned_list, unpinned) {
+		/* short circuit: this is our insertion point */
+		if (range_before_page(range, pgstart))
+			break;
+
+		/*
+		 * The user can ask us to unpin pages that are already entirely
+		 * or partially pinned. We handle those two cases here.
+		 */
+		if (page_range_subsumed_by_range(range, pgstart, pgend))
+			return 0;
+		if (page_range_in_range(range, pgstart, pgend)) {
+			pgstart = min_t(size_t, range->pgstart, pgstart),
+			pgend = max_t(size_t, range->pgend, pgend);
+			purged |= range->purged;
+			range_del(range);
+			goto restart;
+		}
+	}
+
+	return range_alloc(asma, range, purged, pgstart, pgend);
+}
+
+/*
+ * ashmem_get_pin_status - Returns ASHMEM_IS_UNPINNED if _any_ pages in the
+ * given interval are unpinned and ASHMEM_IS_PINNED otherwise.
+ *
+ * Caller must hold ashmem_mutex.
+ */
+static int ashmem_get_pin_status(struct ashmem_area *asma, size_t pgstart,
+				 size_t pgend)
+{
+	struct ashmem_range *range;
+	int ret = ASHMEM_IS_PINNED;
+
+	list_for_each_entry(range, &asma->unpinned_list, unpinned) {
+		if (range_before_page(range, pgstart))
+			break;
+		if (page_range_in_range(range, pgstart, pgend)) {
+			ret = ASHMEM_IS_UNPINNED;
+			break;
+		}
+	}
+
+	return ret;
+}
+
+static int ashmem_pin_unpin(struct ashmem_area *asma, unsigned long cmd,
+			    void __user *p)
+{
+	struct ashmem_pin pin;
+	size_t pgstart, pgend;
+	int ret = -EINVAL;
+
+	if (unlikely(!asma->file))
+		return -EINVAL;
+
+	if (unlikely(copy_from_user(&pin, p, sizeof(pin))))
+		return -EFAULT;
+
+	/* per custom, you can pass zero for len to mean "everything onward" */
+	if (!pin.len)
+		pin.len = PAGE_ALIGN(asma->size) - pin.offset;
+
+	if (unlikely((pin.offset | pin.len) & ~PAGE_MASK))
+		return -EINVAL;
+
+	if (unlikely(((__u32) -1) - pin.offset < pin.len))
+		return -EINVAL;
+
+	if (unlikely(PAGE_ALIGN(asma->size) < pin.offset + pin.len))
+		return -EINVAL;
+
+	pgstart = pin.offset / PAGE_SIZE;
+	pgend = pgstart + (pin.len / PAGE_SIZE) - 1;
+
+	mutex_lock(&ashmem_mutex);
+
+	switch (cmd) {
+	case ASHMEM_PIN:
+		ret = ashmem_pin(asma, pgstart, pgend);
+		break;
+	case ASHMEM_UNPIN:
+		ret = ashmem_unpin(asma, pgstart, pgend);
+		break;
+	case ASHMEM_GET_PIN_STATUS:
+		ret = ashmem_get_pin_status(asma, pgstart, pgend);
+		break;
+	}
+
+	mutex_unlock(&ashmem_mutex);
+
+	return ret;
+}
+
+static long ashmem_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+	struct ashmem_area *asma = file->private_data;
+	long ret = -ENOTTY;
+
+	switch (cmd) {
+	case ASHMEM_SET_NAME:
+		ret = set_name(asma, (void __user *) arg);
+		break;
+	case ASHMEM_GET_NAME:
+		ret = get_name(asma, (void __user *) arg);
+		break;
+	case ASHMEM_SET_SIZE:
+		ret = -EINVAL;
+		if (!asma->file) {
+			ret = 0;
+			asma->size = (size_t) arg;
+		}
+		break;
+	case ASHMEM_GET_SIZE:
+		ret = asma->size;
+		break;
+	case ASHMEM_SET_PROT_MASK:
+		ret = set_prot_mask(asma, arg);
+		break;
+	case ASHMEM_GET_PROT_MASK:
+		ret = asma->prot_mask;
+		break;
+	case ASHMEM_PIN:
+	case ASHMEM_UNPIN:
+	case ASHMEM_GET_PIN_STATUS:
+		ret = ashmem_pin_unpin(asma, cmd, (void __user *) arg);
+		break;
+	case ASHMEM_PURGE_ALL_CACHES:
+		ret = -EPERM;
+		if (capable(CAP_SYS_ADMIN)) {
+			struct shrink_control sc = {
+				.gfp_mask = GFP_KERNEL,
+				.nr_to_scan = 0,
+			};
+			ret = ashmem_shrink(&ashmem_shrinker, &sc);
+			sc.nr_to_scan = ret;
+			ashmem_shrink(&ashmem_shrinker, &sc);
+		}
+		break;
+	}
+
+	return ret;
+}
+
+static struct file_operations ashmem_fops = {
+	.owner = THIS_MODULE,
+	.open = ashmem_open,
+	.release = ashmem_release,
+	.read = ashmem_read,
+	.llseek = ashmem_llseek,
+	.mmap = ashmem_mmap,
+	.unlocked_ioctl = ashmem_ioctl,
+	.compat_ioctl = ashmem_ioctl,
+};
+
+static struct miscdevice ashmem_misc = {
+	.minor = MISC_DYNAMIC_MINOR,
+	.name = "ashmem",
+	.fops = &ashmem_fops,
+};
+
+static int __init ashmem_init(void)
+{
+	int ret;
+
+	ashmem_area_cachep = kmem_cache_create("ashmem_area_cache",
+					  sizeof(struct ashmem_area),
+					  0, 0, NULL);
+	if (unlikely(!ashmem_area_cachep)) {
+		printk(KERN_ERR "ashmem: failed to create slab cache\n");
+		return -ENOMEM;
+	}
+
+	ashmem_range_cachep = kmem_cache_create("ashmem_range_cache",
+					  sizeof(struct ashmem_range),
+					  0, 0, NULL);
+	if (unlikely(!ashmem_range_cachep)) {
+		printk(KERN_ERR "ashmem: failed to create slab cache\n");
+		return -ENOMEM;
+	}
+
+	ret = misc_register(&ashmem_misc);
+	if (unlikely(ret)) {
+		printk(KERN_ERR "ashmem: failed to register misc device!\n");
+		return ret;
+	}
+
+	register_shrinker(&ashmem_shrinker);
+
+	printk(KERN_INFO "ashmem: initialized\n");
+
+	return 0;
+}
+
+static void __exit ashmem_exit(void)
+{
+	int ret;
+
+	unregister_shrinker(&ashmem_shrinker);
+
+	ret = misc_deregister(&ashmem_misc);
+	if (unlikely(ret))
+		printk(KERN_ERR "ashmem: failed to unregister misc device!\n");
+
+	kmem_cache_destroy(ashmem_range_cachep);
+	kmem_cache_destroy(ashmem_area_cachep);
+
+	printk(KERN_INFO "ashmem: unloaded\n");
+}
+
+module_init(ashmem_init);
+module_exit(ashmem_exit);
+
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/android/ashmem.h b/drivers/staging/android/ashmem.h
new file mode 100644
index 000000000000..1976b10ef93e
--- /dev/null
+++ b/drivers/staging/android/ashmem.h
@@ -0,0 +1,48 @@
+/*
+ * include/linux/ashmem.h
+ *
+ * Copyright 2008 Google Inc.
+ * Author: Robert Love
+ *
+ * This file is dual licensed.  It may be redistributed and/or modified
+ * under the terms of the Apache 2.0 License OR version 2 of the GNU
+ * General Public License.
+ */
+
+#ifndef _LINUX_ASHMEM_H
+#define _LINUX_ASHMEM_H
+
+#include <linux/limits.h>
+#include <linux/ioctl.h>
+
+#define ASHMEM_NAME_LEN		256
+
+#define ASHMEM_NAME_DEF		"dev/ashmem"
+
+/* Return values from ASHMEM_PIN: Was the mapping purged while unpinned? */
+#define ASHMEM_NOT_PURGED	0
+#define ASHMEM_WAS_PURGED	1
+
+/* Return values from ASHMEM_GET_PIN_STATUS: Is the mapping pinned? */
+#define ASHMEM_IS_UNPINNED	0
+#define ASHMEM_IS_PINNED	1
+
+struct ashmem_pin {
+	__u32 offset;	/* offset into region, in bytes, page-aligned */
+	__u32 len;	/* length forward from offset, in bytes, page-aligned */
+};
+
+#define __ASHMEMIOC		0x77
+
+#define ASHMEM_SET_NAME		_IOW(__ASHMEMIOC, 1, char[ASHMEM_NAME_LEN])
+#define ASHMEM_GET_NAME		_IOR(__ASHMEMIOC, 2, char[ASHMEM_NAME_LEN])
+#define ASHMEM_SET_SIZE		_IOW(__ASHMEMIOC, 3, size_t)
+#define ASHMEM_GET_SIZE		_IO(__ASHMEMIOC, 4)
+#define ASHMEM_SET_PROT_MASK	_IOW(__ASHMEMIOC, 5, unsigned long)
+#define ASHMEM_GET_PROT_MASK	_IO(__ASHMEMIOC, 6)
+#define ASHMEM_PIN		_IOW(__ASHMEMIOC, 7, struct ashmem_pin)
+#define ASHMEM_UNPIN		_IOW(__ASHMEMIOC, 8, struct ashmem_pin)
+#define ASHMEM_GET_PIN_STATUS	_IO(__ASHMEMIOC, 9)
+#define ASHMEM_PURGE_ALL_CACHES	_IO(__ASHMEMIOC, 10)
+
+#endif	/* _LINUX_ASHMEM_H */
diff --git a/drivers/staging/android/binder.c b/drivers/staging/android/binder.c
new file mode 100644
index 000000000000..7491801a661c
--- /dev/null
+++ b/drivers/staging/android/binder.c
@@ -0,0 +1,3600 @@
+/* binder.c
+ *
+ * Android IPC Subsystem
+ *
+ * Copyright (C) 2007-2008 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <asm/cacheflush.h>
+#include <linux/fdtable.h>
+#include <linux/file.h>
+#include <linux/fs.h>
+#include <linux/list.h>
+#include <linux/miscdevice.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+#include <linux/nsproxy.h>
+#include <linux/poll.h>
+#include <linux/debugfs.h>
+#include <linux/rbtree.h>
+#include <linux/sched.h>
+#include <linux/seq_file.h>
+#include <linux/uaccess.h>
+#include <linux/vmalloc.h>
+#include <linux/slab.h>
+
+#include "binder.h"
+
+static DEFINE_MUTEX(binder_lock);
+static DEFINE_MUTEX(binder_deferred_lock);
+
+static HLIST_HEAD(binder_procs);
+static HLIST_HEAD(binder_deferred_list);
+static HLIST_HEAD(binder_dead_nodes);
+
+static struct dentry *binder_debugfs_dir_entry_root;
+static struct dentry *binder_debugfs_dir_entry_proc;
+static struct binder_node *binder_context_mgr_node;
+static uid_t binder_context_mgr_uid = -1;
+static int binder_last_id;
+static struct workqueue_struct *binder_deferred_workqueue;
+
+#define BINDER_DEBUG_ENTRY(name) \
+static int binder_##name##_open(struct inode *inode, struct file *file) \
+{ \
+	return single_open(file, binder_##name##_show, inode->i_private); \
+} \
+\
+static const struct file_operations binder_##name##_fops = { \
+	.owner = THIS_MODULE, \
+	.open = binder_##name##_open, \
+	.read = seq_read, \
+	.llseek = seq_lseek, \
+	.release = single_release, \
+}
+
+static int binder_proc_show(struct seq_file *m, void *unused);
+BINDER_DEBUG_ENTRY(proc);
+
+/* This is only defined in include/asm-arm/sizes.h */
+#ifndef SZ_1K
+#define SZ_1K                               0x400
+#endif
+
+#ifndef SZ_4M
+#define SZ_4M                               0x400000
+#endif
+
+#define FORBIDDEN_MMAP_FLAGS                (VM_WRITE)
+
+#define BINDER_SMALL_BUF_SIZE (PAGE_SIZE * 64)
+
+enum {
+	BINDER_DEBUG_USER_ERROR             = 1U << 0,
+	BINDER_DEBUG_FAILED_TRANSACTION     = 1U << 1,
+	BINDER_DEBUG_DEAD_TRANSACTION       = 1U << 2,
+	BINDER_DEBUG_OPEN_CLOSE             = 1U << 3,
+	BINDER_DEBUG_DEAD_BINDER            = 1U << 4,
+	BINDER_DEBUG_DEATH_NOTIFICATION     = 1U << 5,
+	BINDER_DEBUG_READ_WRITE             = 1U << 6,
+	BINDER_DEBUG_USER_REFS              = 1U << 7,
+	BINDER_DEBUG_THREADS                = 1U << 8,
+	BINDER_DEBUG_TRANSACTION            = 1U << 9,
+	BINDER_DEBUG_TRANSACTION_COMPLETE   = 1U << 10,
+	BINDER_DEBUG_FREE_BUFFER            = 1U << 11,
+	BINDER_DEBUG_INTERNAL_REFS          = 1U << 12,
+	BINDER_DEBUG_BUFFER_ALLOC           = 1U << 13,
+	BINDER_DEBUG_PRIORITY_CAP           = 1U << 14,
+	BINDER_DEBUG_BUFFER_ALLOC_ASYNC     = 1U << 15,
+};
+static uint32_t binder_debug_mask = BINDER_DEBUG_USER_ERROR |
+	BINDER_DEBUG_FAILED_TRANSACTION | BINDER_DEBUG_DEAD_TRANSACTION;
+module_param_named(debug_mask, binder_debug_mask, uint, S_IWUSR | S_IRUGO);
+
+static int binder_debug_no_lock;
+module_param_named(proc_no_lock, binder_debug_no_lock, bool, S_IWUSR | S_IRUGO);
+
+static DECLARE_WAIT_QUEUE_HEAD(binder_user_error_wait);
+static int binder_stop_on_user_error;
+
+static int binder_set_stop_on_user_error(const char *val,
+					 struct kernel_param *kp)
+{
+	int ret;
+	ret = param_set_int(val, kp);
+	if (binder_stop_on_user_error < 2)
+		wake_up(&binder_user_error_wait);
+	return ret;
+}
+module_param_call(stop_on_user_error, binder_set_stop_on_user_error,
+	param_get_int, &binder_stop_on_user_error, S_IWUSR | S_IRUGO);
+
+#define binder_debug(mask, x...) \
+	do { \
+		if (binder_debug_mask & mask) \
+			printk(KERN_INFO x); \
+	} while (0)
+
+#define binder_user_error(x...) \
+	do { \
+		if (binder_debug_mask & BINDER_DEBUG_USER_ERROR) \
+			printk(KERN_INFO x); \
+		if (binder_stop_on_user_error) \
+			binder_stop_on_user_error = 2; \
+	} while (0)
+
+enum binder_stat_types {
+	BINDER_STAT_PROC,
+	BINDER_STAT_THREAD,
+	BINDER_STAT_NODE,
+	BINDER_STAT_REF,
+	BINDER_STAT_DEATH,
+	BINDER_STAT_TRANSACTION,
+	BINDER_STAT_TRANSACTION_COMPLETE,
+	BINDER_STAT_COUNT
+};
+
+struct binder_stats {
+	int br[_IOC_NR(BR_FAILED_REPLY) + 1];
+	int bc[_IOC_NR(BC_DEAD_BINDER_DONE) + 1];
+	int obj_created[BINDER_STAT_COUNT];
+	int obj_deleted[BINDER_STAT_COUNT];
+};
+
+static struct binder_stats binder_stats;
+
+static inline void binder_stats_deleted(enum binder_stat_types type)
+{
+	binder_stats.obj_deleted[type]++;
+}
+
+static inline void binder_stats_created(enum binder_stat_types type)
+{
+	binder_stats.obj_created[type]++;
+}
+
+struct binder_transaction_log_entry {
+	int debug_id;
+	int call_type;
+	int from_proc;
+	int from_thread;
+	int target_handle;
+	int to_proc;
+	int to_thread;
+	int to_node;
+	int data_size;
+	int offsets_size;
+};
+struct binder_transaction_log {
+	int next;
+	int full;
+	struct binder_transaction_log_entry entry[32];
+};
+static struct binder_transaction_log binder_transaction_log;
+static struct binder_transaction_log binder_transaction_log_failed;
+
+static struct binder_transaction_log_entry *binder_transaction_log_add(
+	struct binder_transaction_log *log)
+{
+	struct binder_transaction_log_entry *e;
+	e = &log->entry[log->next];
+	memset(e, 0, sizeof(*e));
+	log->next++;
+	if (log->next == ARRAY_SIZE(log->entry)) {
+		log->next = 0;
+		log->full = 1;
+	}
+	return e;
+}
+
+struct binder_work {
+	struct list_head entry;
+	enum {
+		BINDER_WORK_TRANSACTION = 1,
+		BINDER_WORK_TRANSACTION_COMPLETE,
+		BINDER_WORK_NODE,
+		BINDER_WORK_DEAD_BINDER,
+		BINDER_WORK_DEAD_BINDER_AND_CLEAR,
+		BINDER_WORK_CLEAR_DEATH_NOTIFICATION,
+	} type;
+};
+
+struct binder_node {
+	int debug_id;
+	struct binder_work work;
+	union {
+		struct rb_node rb_node;
+		struct hlist_node dead_node;
+	};
+	struct binder_proc *proc;
+	struct hlist_head refs;
+	int internal_strong_refs;
+	int local_weak_refs;
+	int local_strong_refs;
+	void __user *ptr;
+	void __user *cookie;
+	unsigned has_strong_ref:1;
+	unsigned pending_strong_ref:1;
+	unsigned has_weak_ref:1;
+	unsigned pending_weak_ref:1;
+	unsigned has_async_transaction:1;
+	unsigned accept_fds:1;
+	unsigned min_priority:8;
+	struct list_head async_todo;
+};
+
+struct binder_ref_death {
+	struct binder_work work;
+	void __user *cookie;
+};
+
+struct binder_ref {
+	/* Lookups needed: */
+	/*   node + proc => ref (transaction) */
+	/*   desc + proc => ref (transaction, inc/dec ref) */
+	/*   node => refs + procs (proc exit) */
+	int debug_id;
+	struct rb_node rb_node_desc;
+	struct rb_node rb_node_node;
+	struct hlist_node node_entry;
+	struct binder_proc *proc;
+	struct binder_node *node;
+	uint32_t desc;
+	int strong;
+	int weak;
+	struct binder_ref_death *death;
+};
+
+struct binder_buffer {
+	struct list_head entry; /* free and allocated entries by addesss */
+	struct rb_node rb_node; /* free entry by size or allocated entry */
+				/* by address */
+	unsigned free:1;
+	unsigned allow_user_free:1;
+	unsigned async_transaction:1;
+	unsigned debug_id:29;
+
+	struct binder_transaction *transaction;
+
+	struct binder_node *target_node;
+	size_t data_size;
+	size_t offsets_size;
+	uint8_t data[0];
+};
+
+enum binder_deferred_state {
+	BINDER_DEFERRED_PUT_FILES    = 0x01,
+	BINDER_DEFERRED_FLUSH        = 0x02,
+	BINDER_DEFERRED_RELEASE      = 0x04,
+};
+
+struct binder_proc {
+	struct hlist_node proc_node;
+	struct rb_root threads;
+	struct rb_root nodes;
+	struct rb_root refs_by_desc;
+	struct rb_root refs_by_node;
+	int pid;
+	struct vm_area_struct *vma;
+	struct task_struct *tsk;
+	struct files_struct *files;
+	struct hlist_node deferred_work_node;
+	int deferred_work;
+	void *buffer;
+	ptrdiff_t user_buffer_offset;
+
+	struct list_head buffers;
+	struct rb_root free_buffers;
+	struct rb_root allocated_buffers;
+	size_t free_async_space;
+
+	struct page **pages;
+	size_t buffer_size;
+	uint32_t buffer_free;
+	struct list_head todo;
+	wait_queue_head_t wait;
+	struct binder_stats stats;
+	struct list_head delivered_death;
+	int max_threads;
+	int requested_threads;
+	int requested_threads_started;
+	int ready_threads;
+	long default_priority;
+	struct dentry *debugfs_entry;
+};
+
+enum {
+	BINDER_LOOPER_STATE_REGISTERED  = 0x01,
+	BINDER_LOOPER_STATE_ENTERED     = 0x02,
+	BINDER_LOOPER_STATE_EXITED      = 0x04,
+	BINDER_LOOPER_STATE_INVALID     = 0x08,
+	BINDER_LOOPER_STATE_WAITING     = 0x10,
+	BINDER_LOOPER_STATE_NEED_RETURN = 0x20
+};
+
+struct binder_thread {
+	struct binder_proc *proc;
+	struct rb_node rb_node;
+	int pid;
+	int looper;
+	struct binder_transaction *transaction_stack;
+	struct list_head todo;
+	uint32_t return_error; /* Write failed, return error code in read buf */
+	uint32_t return_error2; /* Write failed, return error code in read */
+		/* buffer. Used when sending a reply to a dead process that */
+		/* we are also waiting on */
+	wait_queue_head_t wait;
+	struct binder_stats stats;
+};
+
+struct binder_transaction {
+	int debug_id;
+	struct binder_work work;
+	struct binder_thread *from;
+	struct binder_transaction *from_parent;
+	struct binder_proc *to_proc;
+	struct binder_thread *to_thread;
+	struct binder_transaction *to_parent;
+	unsigned need_reply:1;
+	/* unsigned is_dead:1; */	/* not used at the moment */
+
+	struct binder_buffer *buffer;
+	unsigned int	code;
+	unsigned int	flags;
+	long	priority;
+	long	saved_priority;
+	uid_t	sender_euid;
+};
+
+static void
+binder_defer_work(struct binder_proc *proc, enum binder_deferred_state defer);
+
+/*
+ * copied from get_unused_fd_flags
+ */
+int task_get_unused_fd_flags(struct binder_proc *proc, int flags)
+{
+	struct files_struct *files = proc->files;
+	int fd, error;
+	struct fdtable *fdt;
+	unsigned long rlim_cur;
+	unsigned long irqs;
+
+	if (files == NULL)
+		return -ESRCH;
+
+	error = -EMFILE;
+	spin_lock(&files->file_lock);
+
+repeat:
+	fdt = files_fdtable(files);
+	fd = find_next_zero_bit(fdt->open_fds->fds_bits, fdt->max_fds,
+				files->next_fd);
+
+	/*
+	 * N.B. For clone tasks sharing a files structure, this test
+	 * will limit the total number of files that can be opened.
+	 */
+	rlim_cur = 0;
+	if (lock_task_sighand(proc->tsk, &irqs)) {
+		rlim_cur = proc->tsk->signal->rlim[RLIMIT_NOFILE].rlim_cur;
+		unlock_task_sighand(proc->tsk, &irqs);
+	}
+	if (fd >= rlim_cur)
+		goto out;
+
+	/* Do we need to expand the fd array or fd set?  */
+	error = expand_files(files, fd);
+	if (error < 0)
+		goto out;
+
+	if (error) {
+		/*
+		 * If we needed to expand the fs array we
+		 * might have blocked - try again.
+		 */
+		error = -EMFILE;
+		goto repeat;
+	}
+
+	FD_SET(fd, fdt->open_fds);
+	if (flags & O_CLOEXEC)
+		FD_SET(fd, fdt->close_on_exec);
+	else
+		FD_CLR(fd, fdt->close_on_exec);
+	files->next_fd = fd + 1;
+#if 1
+	/* Sanity check */
+	if (fdt->fd[fd] != NULL) {
+		printk(KERN_WARNING "get_unused_fd: slot %d not NULL!\n", fd);
+		fdt->fd[fd] = NULL;
+	}
+#endif
+	error = fd;
+
+out:
+	spin_unlock(&files->file_lock);
+	return error;
+}
+
+/*
+ * copied from fd_install
+ */
+static void task_fd_install(
+	struct binder_proc *proc, unsigned int fd, struct file *file)
+{
+	struct files_struct *files = proc->files;
+	struct fdtable *fdt;
+
+	if (files == NULL)
+		return;
+
+	spin_lock(&files->file_lock);
+	fdt = files_fdtable(files);
+	BUG_ON(fdt->fd[fd] != NULL);
+	rcu_assign_pointer(fdt->fd[fd], file);
+	spin_unlock(&files->file_lock);
+}
+
+/*
+ * copied from __put_unused_fd in open.c
+ */
+static void __put_unused_fd(struct files_struct *files, unsigned int fd)
+{
+	struct fdtable *fdt = files_fdtable(files);
+	__FD_CLR(fd, fdt->open_fds);
+	if (fd < files->next_fd)
+		files->next_fd = fd;
+}
+
+/*
+ * copied from sys_close
+ */
+static long task_close_fd(struct binder_proc *proc, unsigned int fd)
+{
+	struct file *filp;
+	struct files_struct *files = proc->files;
+	struct fdtable *fdt;
+	int retval;
+
+	if (files == NULL)
+		return -ESRCH;
+
+	spin_lock(&files->file_lock);
+	fdt = files_fdtable(files);
+	if (fd >= fdt->max_fds)
+		goto out_unlock;
+	filp = fdt->fd[fd];
+	if (!filp)
+		goto out_unlock;
+	rcu_assign_pointer(fdt->fd[fd], NULL);
+	FD_CLR(fd, fdt->close_on_exec);
+	__put_unused_fd(files, fd);
+	spin_unlock(&files->file_lock);
+	retval = filp_close(filp, files);
+
+	/* can't restart close syscall because file table entry was cleared */
+	if (unlikely(retval == -ERESTARTSYS ||
+		     retval == -ERESTARTNOINTR ||
+		     retval == -ERESTARTNOHAND ||
+		     retval == -ERESTART_RESTARTBLOCK))
+		retval = -EINTR;
+
+	return retval;
+
+out_unlock:
+	spin_unlock(&files->file_lock);
+	return -EBADF;
+}
+
+static void binder_set_nice(long nice)
+{
+	long min_nice;
+	if (can_nice(current, nice)) {
+		set_user_nice(current, nice);
+		return;
+	}
+	min_nice = 20 - current->signal->rlim[RLIMIT_NICE].rlim_cur;
+	binder_debug(BINDER_DEBUG_PRIORITY_CAP,
+		     "binder: %d: nice value %ld not allowed use "
+		     "%ld instead\n", current->pid, nice, min_nice);
+	set_user_nice(current, min_nice);
+	if (min_nice < 20)
+		return;
+	binder_user_error("binder: %d RLIMIT_NICE not set\n", current->pid);
+}
+
+static size_t binder_buffer_size(struct binder_proc *proc,
+				 struct binder_buffer *buffer)
+{
+	if (list_is_last(&buffer->entry, &proc->buffers))
+		return proc->buffer + proc->buffer_size - (void *)buffer->data;
+	else
+		return (size_t)list_entry(buffer->entry.next,
+			struct binder_buffer, entry) - (size_t)buffer->data;
+}
+
+static void binder_insert_free_buffer(struct binder_proc *proc,
+				      struct binder_buffer *new_buffer)
+{
+	struct rb_node **p = &proc->free_buffers.rb_node;
+	struct rb_node *parent = NULL;
+	struct binder_buffer *buffer;
+	size_t buffer_size;
+	size_t new_buffer_size;
+
+	BUG_ON(!new_buffer->free);
+
+	new_buffer_size = binder_buffer_size(proc, new_buffer);
+
+	binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
+		     "binder: %d: add free buffer, size %zd, "
+		     "at %p\n", proc->pid, new_buffer_size, new_buffer);
+
+	while (*p) {
+		parent = *p;
+		buffer = rb_entry(parent, struct binder_buffer, rb_node);
+		BUG_ON(!buffer->free);
+
+		buffer_size = binder_buffer_size(proc, buffer);
+
+		if (new_buffer_size < buffer_size)
+			p = &parent->rb_left;
+		else
+			p = &parent->rb_right;
+	}
+	rb_link_node(&new_buffer->rb_node, parent, p);
+	rb_insert_color(&new_buffer->rb_node, &proc->free_buffers);
+}
+
+static void binder_insert_allocated_buffer(struct binder_proc *proc,
+					   struct binder_buffer *new_buffer)
+{
+	struct rb_node **p = &proc->allocated_buffers.rb_node;
+	struct rb_node *parent = NULL;
+	struct binder_buffer *buffer;
+
+	BUG_ON(new_buffer->free);
+
+	while (*p) {
+		parent = *p;
+		buffer = rb_entry(parent, struct binder_buffer, rb_node);
+		BUG_ON(buffer->free);
+
+		if (new_buffer < buffer)
+			p = &parent->rb_left;
+		else if (new_buffer > buffer)
+			p = &parent->rb_right;
+		else
+			BUG();
+	}
+	rb_link_node(&new_buffer->rb_node, parent, p);
+	rb_insert_color(&new_buffer->rb_node, &proc->allocated_buffers);
+}
+
+static struct binder_buffer *binder_buffer_lookup(struct binder_proc *proc,
+						  void __user *user_ptr)
+{
+	struct rb_node *n = proc->allocated_buffers.rb_node;
+	struct binder_buffer *buffer;
+	struct binder_buffer *kern_ptr;
+
+	kern_ptr = user_ptr - proc->user_buffer_offset
+		- offsetof(struct binder_buffer, data);
+
+	while (n) {
+		buffer = rb_entry(n, struct binder_buffer, rb_node);
+		BUG_ON(buffer->free);
+
+		if (kern_ptr < buffer)
+			n = n->rb_left;
+		else if (kern_ptr > buffer)
+			n = n->rb_right;
+		else
+			return buffer;
+	}
+	return NULL;
+}
+
+static int binder_update_page_range(struct binder_proc *proc, int allocate,
+				    void *start, void *end,
+				    struct vm_area_struct *vma)
+{
+	void *page_addr;
+	unsigned long user_page_addr;
+	struct vm_struct tmp_area;
+	struct page **page;
+	struct mm_struct *mm;
+
+	binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
+		     "binder: %d: %s pages %p-%p\n", proc->pid,
+		     allocate ? "allocate" : "free", start, end);
+
+	if (end <= start)
+		return 0;
+
+	if (vma)
+		mm = NULL;
+	else
+		mm = get_task_mm(proc->tsk);
+
+	if (mm) {
+		down_write(&mm->mmap_sem);
+		vma = proc->vma;
+	}
+
+	if (allocate == 0)
+		goto free_range;
+
+	if (vma == NULL) {
+		printk(KERN_ERR "binder: %d: binder_alloc_buf failed to "
+		       "map pages in userspace, no vma\n", proc->pid);
+		goto err_no_vma;
+	}
+
+	for (page_addr = start; page_addr < end; page_addr += PAGE_SIZE) {
+		int ret;
+		struct page **page_array_ptr;
+		page = &proc->pages[(page_addr - proc->buffer) / PAGE_SIZE];
+
+		BUG_ON(*page);
+		*page = alloc_page(GFP_KERNEL | __GFP_ZERO);
+		if (*page == NULL) {
+			printk(KERN_ERR "binder: %d: binder_alloc_buf failed "
+			       "for page at %p\n", proc->pid, page_addr);
+			goto err_alloc_page_failed;
+		}
+		tmp_area.addr = page_addr;
+		tmp_area.size = PAGE_SIZE + PAGE_SIZE /* guard page? */;
+		page_array_ptr = page;
+		ret = map_vm_area(&tmp_area, PAGE_KERNEL, &page_array_ptr);
+		if (ret) {
+			printk(KERN_ERR "binder: %d: binder_alloc_buf failed "
+			       "to map page at %p in kernel\n",
+			       proc->pid, page_addr);
+			goto err_map_kernel_failed;
+		}
+		user_page_addr =
+			(uintptr_t)page_addr + proc->user_buffer_offset;
+		ret = vm_insert_page(vma, user_page_addr, page[0]);
+		if (ret) {
+			printk(KERN_ERR "binder: %d: binder_alloc_buf failed "
+			       "to map page at %lx in userspace\n",
+			       proc->pid, user_page_addr);
+			goto err_vm_insert_page_failed;
+		}
+		/* vm_insert_page does not seem to increment the refcount */
+	}
+	if (mm) {
+		up_write(&mm->mmap_sem);
+		mmput(mm);
+	}
+	return 0;
+
+free_range:
+	for (page_addr = end - PAGE_SIZE; page_addr >= start;
+	     page_addr -= PAGE_SIZE) {
+		page = &proc->pages[(page_addr - proc->buffer) / PAGE_SIZE];
+		if (vma)
+			zap_page_range(vma, (uintptr_t)page_addr +
+				proc->user_buffer_offset, PAGE_SIZE, NULL);
+err_vm_insert_page_failed:
+		unmap_kernel_range((unsigned long)page_addr, PAGE_SIZE);
+err_map_kernel_failed:
+		__free_page(*page);
+		*page = NULL;
+err_alloc_page_failed:
+		;
+	}
+err_no_vma:
+	if (mm) {
+		up_write(&mm->mmap_sem);
+		mmput(mm);
+	}
+	return -ENOMEM;
+}
+
+static struct binder_buffer *binder_alloc_buf(struct binder_proc *proc,
+					      size_t data_size,
+					      size_t offsets_size, int is_async)
+{
+	struct rb_node *n = proc->free_buffers.rb_node;
+	struct binder_buffer *buffer;
+	size_t buffer_size;
+	struct rb_node *best_fit = NULL;
+	void *has_page_addr;
+	void *end_page_addr;
+	size_t size;
+
+	if (proc->vma == NULL) {
+		printk(KERN_ERR "binder: %d: binder_alloc_buf, no vma\n",
+		       proc->pid);
+		return NULL;
+	}
+
+	size = ALIGN(data_size, sizeof(void *)) +
+		ALIGN(offsets_size, sizeof(void *));
+
+	if (size < data_size || size < offsets_size) {
+		binder_user_error("binder: %d: got transaction with invalid "
+			"size %zd-%zd\n", proc->pid, data_size, offsets_size);
+		return NULL;
+	}
+
+	if (is_async &&
+	    proc->free_async_space < size + sizeof(struct binder_buffer)) {
+		binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
+			     "binder: %d: binder_alloc_buf size %zd"
+			     "failed, no async space left\n", proc->pid, size);
+		return NULL;
+	}
+
+	while (n) {
+		buffer = rb_entry(n, struct binder_buffer, rb_node);
+		BUG_ON(!buffer->free);
+		buffer_size = binder_buffer_size(proc, buffer);
+
+		if (size < buffer_size) {
+			best_fit = n;
+			n = n->rb_left;
+		} else if (size > buffer_size)
+			n = n->rb_right;
+		else {
+			best_fit = n;
+			break;
+		}
+	}
+	if (best_fit == NULL) {
+		printk(KERN_ERR "binder: %d: binder_alloc_buf size %zd failed, "
+		       "no address space\n", proc->pid, size);
+		return NULL;
+	}
+	if (n == NULL) {
+		buffer = rb_entry(best_fit, struct binder_buffer, rb_node);
+		buffer_size = binder_buffer_size(proc, buffer);
+	}
+
+	binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
+		     "binder: %d: binder_alloc_buf size %zd got buff"
+		     "er %p size %zd\n", proc->pid, size, buffer, buffer_size);
+
+	has_page_addr =
+		(void *)(((uintptr_t)buffer->data + buffer_size) & PAGE_MASK);
+	if (n == NULL) {
+		if (size + sizeof(struct binder_buffer) + 4 >= buffer_size)
+			buffer_size = size; /* no room for other buffers */
+		else
+			buffer_size = size + sizeof(struct binder_buffer);
+	}
+	end_page_addr =
+		(void *)PAGE_ALIGN((uintptr_t)buffer->data + buffer_size);
+	if (end_page_addr > has_page_addr)
+		end_page_addr = has_page_addr;
+	if (binder_update_page_range(proc, 1,
+	    (void *)PAGE_ALIGN((uintptr_t)buffer->data), end_page_addr, NULL))
+		return NULL;
+
+	rb_erase(best_fit, &proc->free_buffers);
+	buffer->free = 0;
+	binder_insert_allocated_buffer(proc, buffer);
+	if (buffer_size != size) {
+		struct binder_buffer *new_buffer = (void *)buffer->data + size;
+		list_add(&new_buffer->entry, &buffer->entry);
+		new_buffer->free = 1;
+		binder_insert_free_buffer(proc, new_buffer);
+	}
+	binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
+		     "binder: %d: binder_alloc_buf size %zd got "
+		     "%p\n", proc->pid, size, buffer);
+	buffer->data_size = data_size;
+	buffer->offsets_size = offsets_size;
+	buffer->async_transaction = is_async;
+	if (is_async) {
+		proc->free_async_space -= size + sizeof(struct binder_buffer);
+		binder_debug(BINDER_DEBUG_BUFFER_ALLOC_ASYNC,
+			     "binder: %d: binder_alloc_buf size %zd "
+			     "async free %zd\n", proc->pid, size,
+			     proc->free_async_space);
+	}
+
+	return buffer;
+}
+
+static void *buffer_start_page(struct binder_buffer *buffer)
+{
+	return (void *)((uintptr_t)buffer & PAGE_MASK);
+}
+
+static void *buffer_end_page(struct binder_buffer *buffer)
+{
+	return (void *)(((uintptr_t)(buffer + 1) - 1) & PAGE_MASK);
+}
+
+static void binder_delete_free_buffer(struct binder_proc *proc,
+				      struct binder_buffer *buffer)
+{
+	struct binder_buffer *prev, *next = NULL;
+	int free_page_end = 1;
+	int free_page_start = 1;
+
+	BUG_ON(proc->buffers.next == &buffer->entry);
+	prev = list_entry(buffer->entry.prev, struct binder_buffer, entry);
+	BUG_ON(!prev->free);
+	if (buffer_end_page(prev) == buffer_start_page(buffer)) {
+		free_page_start = 0;
+		if (buffer_end_page(prev) == buffer_end_page(buffer))
+			free_page_end = 0;
+		binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
+			     "binder: %d: merge free, buffer %p "
+			     "share page with %p\n", proc->pid, buffer, prev);
+	}
+
+	if (!list_is_last(&buffer->entry, &proc->buffers)) {
+		next = list_entry(buffer->entry.next,
+				  struct binder_buffer, entry);
+		if (buffer_start_page(next) == buffer_end_page(buffer)) {
+			free_page_end = 0;
+			if (buffer_start_page(next) ==
+			    buffer_start_page(buffer))
+				free_page_start = 0;
+			binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
+				     "binder: %d: merge free, buffer"
+				     " %p share page with %p\n", proc->pid,
+				     buffer, prev);
+		}
+	}
+	list_del(&buffer->entry);
+	if (free_page_start || free_page_end) {
+		binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
+			     "binder: %d: merge free, buffer %p do "
+			     "not share page%s%s with with %p or %p\n",
+			     proc->pid, buffer, free_page_start ? "" : " end",
+			     free_page_end ? "" : " start", prev, next);
+		binder_update_page_range(proc, 0, free_page_start ?
+			buffer_start_page(buffer) : buffer_end_page(buffer),
+			(free_page_end ? buffer_end_page(buffer) :
+			buffer_start_page(buffer)) + PAGE_SIZE, NULL);
+	}
+}
+
+static void binder_free_buf(struct binder_proc *proc,
+			    struct binder_buffer *buffer)
+{
+	size_t size, buffer_size;
+
+	buffer_size = binder_buffer_size(proc, buffer);
+
+	size = ALIGN(buffer->data_size, sizeof(void *)) +
+		ALIGN(buffer->offsets_size, sizeof(void *));
+
+	binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
+		     "binder: %d: binder_free_buf %p size %zd buffer"
+		     "_size %zd\n", proc->pid, buffer, size, buffer_size);
+
+	BUG_ON(buffer->free);
+	BUG_ON(size > buffer_size);
+	BUG_ON(buffer->transaction != NULL);
+	BUG_ON((void *)buffer < proc->buffer);
+	BUG_ON((void *)buffer > proc->buffer + proc->buffer_size);
+
+	if (buffer->async_transaction) {
+		proc->free_async_space += size + sizeof(struct binder_buffer);
+
+		binder_debug(BINDER_DEBUG_BUFFER_ALLOC_ASYNC,
+			     "binder: %d: binder_free_buf size %zd "
+			     "async free %zd\n", proc->pid, size,
+			     proc->free_async_space);
+	}
+
+	binder_update_page_range(proc, 0,
+		(void *)PAGE_ALIGN((uintptr_t)buffer->data),
+		(void *)(((uintptr_t)buffer->data + buffer_size) & PAGE_MASK),
+		NULL);
+	rb_erase(&buffer->rb_node, &proc->allocated_buffers);
+	buffer->free = 1;
+	if (!list_is_last(&buffer->entry, &proc->buffers)) {
+		struct binder_buffer *next = list_entry(buffer->entry.next,
+						struct binder_buffer, entry);
+		if (next->free) {
+			rb_erase(&next->rb_node, &proc->free_buffers);
+			binder_delete_free_buffer(proc, next);
+		}
+	}
+	if (proc->buffers.next != &buffer->entry) {
+		struct binder_buffer *prev = list_entry(buffer->entry.prev,
+						struct binder_buffer, entry);
+		if (prev->free) {
+			binder_delete_free_buffer(proc, buffer);
+			rb_erase(&prev->rb_node, &proc->free_buffers);
+			buffer = prev;
+		}
+	}
+	binder_insert_free_buffer(proc, buffer);
+}
+
+static struct binder_node *binder_get_node(struct binder_proc *proc,
+					   void __user *ptr)
+{
+	struct rb_node *n = proc->nodes.rb_node;
+	struct binder_node *node;
+
+	while (n) {
+		node = rb_entry(n, struct binder_node, rb_node);
+
+		if (ptr < node->ptr)
+			n = n->rb_left;
+		else if (ptr > node->ptr)
+			n = n->rb_right;
+		else
+			return node;
+	}
+	return NULL;
+}
+
+static struct binder_node *binder_new_node(struct binder_proc *proc,
+					   void __user *ptr,
+					   void __user *cookie)
+{
+	struct rb_node **p = &proc->nodes.rb_node;
+	struct rb_node *parent = NULL;
+	struct binder_node *node;
+
+	while (*p) {
+		parent = *p;
+		node = rb_entry(parent, struct binder_node, rb_node);
+
+		if (ptr < node->ptr)
+			p = &(*p)->rb_left;
+		else if (ptr > node->ptr)
+			p = &(*p)->rb_right;
+		else
+			return NULL;
+	}
+
+	node = kzalloc(sizeof(*node), GFP_KERNEL);
+	if (node == NULL)
+		return NULL;
+	binder_stats_created(BINDER_STAT_NODE);
+	rb_link_node(&node->rb_node, parent, p);
+	rb_insert_color(&node->rb_node, &proc->nodes);
+	node->debug_id = ++binder_last_id;
+	node->proc = proc;
+	node->ptr = ptr;
+	node->cookie = cookie;
+	node->work.type = BINDER_WORK_NODE;
+	INIT_LIST_HEAD(&node->work.entry);
+	INIT_LIST_HEAD(&node->async_todo);
+	binder_debug(BINDER_DEBUG_INTERNAL_REFS,
+		     "binder: %d:%d node %d u%p c%p created\n",
+		     proc->pid, current->pid, node->debug_id,
+		     node->ptr, node->cookie);
+	return node;
+}
+
+static int binder_inc_node(struct binder_node *node, int strong, int internal,
+			   struct list_head *target_list)
+{
+	if (strong) {
+		if (internal) {
+			if (target_list == NULL &&
+			    node->internal_strong_refs == 0 &&
+			    !(node == binder_context_mgr_node &&
+			    node->has_strong_ref)) {
+				printk(KERN_ERR "binder: invalid inc strong "
+					"node for %d\n", node->debug_id);
+				return -EINVAL;
+			}
+			node->internal_strong_refs++;
+		} else
+			node->local_strong_refs++;
+		if (!node->has_strong_ref && target_list) {
+			list_del_init(&node->work.entry);
+			list_add_tail(&node->work.entry, target_list);
+		}
+	} else {
+		if (!internal)
+			node->local_weak_refs++;
+		if (!node->has_weak_ref && list_empty(&node->work.entry)) {
+			if (target_list == NULL) {
+				printk(KERN_ERR "binder: invalid inc weak node "
+					"for %d\n", node->debug_id);
+				return -EINVAL;
+			}
+			list_add_tail(&node->work.entry, target_list);
+		}
+	}
+	return 0;
+}
+
+static int binder_dec_node(struct binder_node *node, int strong, int internal)
+{
+	if (strong) {
+		if (internal)
+			node->internal_strong_refs--;
+		else
+			node->local_strong_refs--;
+		if (node->local_strong_refs || node->internal_strong_refs)
+			return 0;
+	} else {
+		if (!internal)
+			node->local_weak_refs--;
+		if (node->local_weak_refs || !hlist_empty(&node->refs))
+			return 0;
+	}
+	if (node->proc && (node->has_strong_ref || node->has_weak_ref)) {
+		if (list_empty(&node->work.entry)) {
+			list_add_tail(&node->work.entry, &node->proc->todo);
+			wake_up_interruptible(&node->proc->wait);
+		}
+	} else {
+		if (hlist_empty(&node->refs) && !node->local_strong_refs &&
+		    !node->local_weak_refs) {
+			list_del_init(&node->work.entry);
+			if (node->proc) {
+				rb_erase(&node->rb_node, &node->proc->nodes);
+				binder_debug(BINDER_DEBUG_INTERNAL_REFS,
+					     "binder: refless node %d deleted\n",
+					     node->debug_id);
+			} else {
+				hlist_del(&node->dead_node);
+				binder_debug(BINDER_DEBUG_INTERNAL_REFS,
+					     "binder: dead node %d deleted\n",
+					     node->debug_id);
+			}
+			kfree(node);
+			binder_stats_deleted(BINDER_STAT_NODE);
+		}
+	}
+
+	return 0;
+}
+
+
+static struct binder_ref *binder_get_ref(struct binder_proc *proc,
+					 uint32_t desc)
+{
+	struct rb_node *n = proc->refs_by_desc.rb_node;
+	struct binder_ref *ref;
+
+	while (n) {
+		ref = rb_entry(n, struct binder_ref, rb_node_desc);
+
+		if (desc < ref->desc)
+			n = n->rb_left;
+		else if (desc > ref->desc)
+			n = n->rb_right;
+		else
+			return ref;
+	}
+	return NULL;
+}
+
+static struct binder_ref *binder_get_ref_for_node(struct binder_proc *proc,
+						  struct binder_node *node)
+{
+	struct rb_node *n;
+	struct rb_node **p = &proc->refs_by_node.rb_node;
+	struct rb_node *parent = NULL;
+	struct binder_ref *ref, *new_ref;
+
+	while (*p) {
+		parent = *p;
+		ref = rb_entry(parent, struct binder_ref, rb_node_node);
+
+		if (node < ref->node)
+			p = &(*p)->rb_left;
+		else if (node > ref->node)
+			p = &(*p)->rb_right;
+		else
+			return ref;
+	}
+	new_ref = kzalloc(sizeof(*ref), GFP_KERNEL);
+	if (new_ref == NULL)
+		return NULL;
+	binder_stats_created(BINDER_STAT_REF);
+	new_ref->debug_id = ++binder_last_id;
+	new_ref->proc = proc;
+	new_ref->node = node;
+	rb_link_node(&new_ref->rb_node_node, parent, p);
+	rb_insert_color(&new_ref->rb_node_node, &proc->refs_by_node);
+
+	new_ref->desc = (node == binder_context_mgr_node) ? 0 : 1;
+	for (n = rb_first(&proc->refs_by_desc); n != NULL; n = rb_next(n)) {
+		ref = rb_entry(n, struct binder_ref, rb_node_desc);
+		if (ref->desc > new_ref->desc)
+			break;
+		new_ref->desc = ref->desc + 1;
+	}
+
+	p = &proc->refs_by_desc.rb_node;
+	while (*p) {
+		parent = *p;
+		ref = rb_entry(parent, struct binder_ref, rb_node_desc);
+
+		if (new_ref->desc < ref->desc)
+			p = &(*p)->rb_left;
+		else if (new_ref->desc > ref->desc)
+			p = &(*p)->rb_right;
+		else
+			BUG();
+	}
+	rb_link_node(&new_ref->rb_node_desc, parent, p);
+	rb_insert_color(&new_ref->rb_node_desc, &proc->refs_by_desc);
+	if (node) {
+		hlist_add_head(&new_ref->node_entry, &node->refs);
+
+		binder_debug(BINDER_DEBUG_INTERNAL_REFS,
+			     "binder: %d new ref %d desc %d for "
+			     "node %d\n", proc->pid, new_ref->debug_id,
+			     new_ref->desc, node->debug_id);
+	} else {
+		binder_debug(BINDER_DEBUG_INTERNAL_REFS,
+			     "binder: %d new ref %d desc %d for "
+			     "dead node\n", proc->pid, new_ref->debug_id,
+			      new_ref->desc);
+	}
+	return new_ref;
+}
+
+static void binder_delete_ref(struct binder_ref *ref)
+{
+	binder_debug(BINDER_DEBUG_INTERNAL_REFS,
+		     "binder: %d delete ref %d desc %d for "
+		     "node %d\n", ref->proc->pid, ref->debug_id,
+		     ref->desc, ref->node->debug_id);
+
+	rb_erase(&ref->rb_node_desc, &ref->proc->refs_by_desc);
+	rb_erase(&ref->rb_node_node, &ref->proc->refs_by_node);
+	if (ref->strong)
+		binder_dec_node(ref->node, 1, 1);
+	hlist_del(&ref->node_entry);
+	binder_dec_node(ref->node, 0, 1);
+	if (ref->death) {
+		binder_debug(BINDER_DEBUG_DEAD_BINDER,
+			     "binder: %d delete ref %d desc %d "
+			     "has death notification\n", ref->proc->pid,
+			     ref->debug_id, ref->desc);
+		list_del(&ref->death->work.entry);
+		kfree(ref->death);
+		binder_stats_deleted(BINDER_STAT_DEATH);
+	}
+	kfree(ref);
+	binder_stats_deleted(BINDER_STAT_REF);
+}
+
+static int binder_inc_ref(struct binder_ref *ref, int strong,
+			  struct list_head *target_list)
+{
+	int ret;
+	if (strong) {
+		if (ref->strong == 0) {
+			ret = binder_inc_node(ref->node, 1, 1, target_list);
+			if (ret)
+				return ret;
+		}
+		ref->strong++;
+	} else {
+		if (ref->weak == 0) {
+			ret = binder_inc_node(ref->node, 0, 1, target_list);
+			if (ret)
+				return ret;
+		}
+		ref->weak++;
+	}
+	return 0;
+}
+
+
+static int binder_dec_ref(struct binder_ref *ref, int strong)
+{
+	if (strong) {
+		if (ref->strong == 0) {
+			binder_user_error("binder: %d invalid dec strong, "
+					  "ref %d desc %d s %d w %d\n",
+					  ref->proc->pid, ref->debug_id,
+					  ref->desc, ref->strong, ref->weak);
+			return -EINVAL;
+		}
+		ref->strong--;
+		if (ref->strong == 0) {
+			int ret;
+			ret = binder_dec_node(ref->node, strong, 1);
+			if (ret)
+				return ret;
+		}
+	} else {
+		if (ref->weak == 0) {
+			binder_user_error("binder: %d invalid dec weak, "
+					  "ref %d desc %d s %d w %d\n",
+					  ref->proc->pid, ref->debug_id,
+					  ref->desc, ref->strong, ref->weak);
+			return -EINVAL;
+		}
+		ref->weak--;
+	}
+	if (ref->strong == 0 && ref->weak == 0)
+		binder_delete_ref(ref);
+	return 0;
+}
+
+static void binder_pop_transaction(struct binder_thread *target_thread,
+				   struct binder_transaction *t)
+{
+	if (target_thread) {
+		BUG_ON(target_thread->transaction_stack != t);
+		BUG_ON(target_thread->transaction_stack->from != target_thread);
+		target_thread->transaction_stack =
+			target_thread->transaction_stack->from_parent;
+		t->from = NULL;
+	}
+	t->need_reply = 0;
+	if (t->buffer)
+		t->buffer->transaction = NULL;
+	kfree(t);
+	binder_stats_deleted(BINDER_STAT_TRANSACTION);
+}
+
+static void binder_send_failed_reply(struct binder_transaction *t,
+				     uint32_t error_code)
+{
+	struct binder_thread *target_thread;
+	BUG_ON(t->flags & TF_ONE_WAY);
+	while (1) {
+		target_thread = t->from;
+		if (target_thread) {
+			if (target_thread->return_error != BR_OK &&
+			   target_thread->return_error2 == BR_OK) {
+				target_thread->return_error2 =
+					target_thread->return_error;
+				target_thread->return_error = BR_OK;
+			}
+			if (target_thread->return_error == BR_OK) {
+				binder_debug(BINDER_DEBUG_FAILED_TRANSACTION,
+					     "binder: send failed reply for "
+					     "transaction %d to %d:%d\n",
+					      t->debug_id, target_thread->proc->pid,
+					      target_thread->pid);
+
+				binder_pop_transaction(target_thread, t);
+				target_thread->return_error = error_code;
+				wake_up_interruptible(&target_thread->wait);
+			} else {
+				printk(KERN_ERR "binder: reply failed, target "
+					"thread, %d:%d, has error code %d "
+					"already\n", target_thread->proc->pid,
+					target_thread->pid,
+					target_thread->return_error);
+			}
+			return;
+		} else {
+			struct binder_transaction *next = t->from_parent;
+
+			binder_debug(BINDER_DEBUG_FAILED_TRANSACTION,
+				     "binder: send failed reply "
+				     "for transaction %d, target dead\n",
+				     t->debug_id);
+
+			binder_pop_transaction(target_thread, t);
+			if (next == NULL) {
+				binder_debug(BINDER_DEBUG_DEAD_BINDER,
+					     "binder: reply failed,"
+					     " no target thread at root\n");
+				return;
+			}
+			t = next;
+			binder_debug(BINDER_DEBUG_DEAD_BINDER,
+				     "binder: reply failed, no target "
+				     "thread -- retry %d\n", t->debug_id);
+		}
+	}
+}
+
+static void binder_transaction_buffer_release(struct binder_proc *proc,
+					      struct binder_buffer *buffer,
+					      size_t *failed_at)
+{
+	size_t *offp, *off_end;
+	int debug_id = buffer->debug_id;
+
+	binder_debug(BINDER_DEBUG_TRANSACTION,
+		     "binder: %d buffer release %d, size %zd-%zd, failed at %p\n",
+		     proc->pid, buffer->debug_id,
+		     buffer->data_size, buffer->offsets_size, failed_at);
+
+	if (buffer->target_node)
+		binder_dec_node(buffer->target_node, 1, 0);
+
+	offp = (size_t *)(buffer->data + ALIGN(buffer->data_size, sizeof(void *)));
+	if (failed_at)
+		off_end = failed_at;
+	else
+		off_end = (void *)offp + buffer->offsets_size;
+	for (; offp < off_end; offp++) {
+		struct flat_binder_object *fp;
+		if (*offp > buffer->data_size - sizeof(*fp) ||
+		    buffer->data_size < sizeof(*fp) ||
+		    !IS_ALIGNED(*offp, sizeof(void *))) {
+			printk(KERN_ERR "binder: transaction release %d bad"
+					"offset %zd, size %zd\n", debug_id,
+					*offp, buffer->data_size);
+			continue;
+		}
+		fp = (struct flat_binder_object *)(buffer->data + *offp);
+		switch (fp->type) {
+		case BINDER_TYPE_BINDER:
+		case BINDER_TYPE_WEAK_BINDER: {
+			struct binder_node *node = binder_get_node(proc, fp->binder);
+			if (node == NULL) {
+				printk(KERN_ERR "binder: transaction release %d"
+				       " bad node %p\n", debug_id, fp->binder);
+				break;
+			}
+			binder_debug(BINDER_DEBUG_TRANSACTION,
+				     "        node %d u%p\n",
+				     node->debug_id, node->ptr);
+			binder_dec_node(node, fp->type == BINDER_TYPE_BINDER, 0);
+		} break;
+		case BINDER_TYPE_HANDLE:
+		case BINDER_TYPE_WEAK_HANDLE: {
+			struct binder_ref *ref = binder_get_ref(proc, fp->handle);
+			if (ref == NULL) {
+				printk(KERN_ERR "binder: transaction release %d"
+				       " bad handle %ld\n", debug_id,
+				       fp->handle);
+				break;
+			}
+			binder_debug(BINDER_DEBUG_TRANSACTION,
+				     "        ref %d desc %d (node %d)\n",
+				     ref->debug_id, ref->desc, ref->node->debug_id);
+			binder_dec_ref(ref, fp->type == BINDER_TYPE_HANDLE);
+		} break;
+
+		case BINDER_TYPE_FD:
+			binder_debug(BINDER_DEBUG_TRANSACTION,
+				     "        fd %ld\n", fp->handle);
+			if (failed_at)
+				task_close_fd(proc, fp->handle);
+			break;
+
+		default:
+			printk(KERN_ERR "binder: transaction release %d bad "
+			       "object type %lx\n", debug_id, fp->type);
+			break;
+		}
+	}
+}
+
+static void binder_transaction(struct binder_proc *proc,
+			       struct binder_thread *thread,
+			       struct binder_transaction_data *tr, int reply)
+{
+	struct binder_transaction *t;
+	struct binder_work *tcomplete;
+	size_t *offp, *off_end;
+	struct binder_proc *target_proc;
+	struct binder_thread *target_thread = NULL;
+	struct binder_node *target_node = NULL;
+	struct list_head *target_list;
+	wait_queue_head_t *target_wait;
+	struct binder_transaction *in_reply_to = NULL;
+	struct binder_transaction_log_entry *e;
+	uint32_t return_error;
+
+	e = binder_transaction_log_add(&binder_transaction_log);
+	e->call_type = reply ? 2 : !!(tr->flags & TF_ONE_WAY);
+	e->from_proc = proc->pid;
+	e->from_thread = thread->pid;
+	e->target_handle = tr->target.handle;
+	e->data_size = tr->data_size;
+	e->offsets_size = tr->offsets_size;
+
+	if (reply) {
+		in_reply_to = thread->transaction_stack;
+		if (in_reply_to == NULL) {
+			binder_user_error("binder: %d:%d got reply transaction "
+					  "with no transaction stack\n",
+					  proc->pid, thread->pid);
+			return_error = BR_FAILED_REPLY;
+			goto err_empty_call_stack;
+		}
+		binder_set_nice(in_reply_to->saved_priority);
+		if (in_reply_to->to_thread != thread) {
+			binder_user_error("binder: %d:%d got reply transaction "
+				"with bad transaction stack,"
+				" transaction %d has target %d:%d\n",
+				proc->pid, thread->pid, in_reply_to->debug_id,
+				in_reply_to->to_proc ?
+				in_reply_to->to_proc->pid : 0,
+				in_reply_to->to_thread ?
+				in_reply_to->to_thread->pid : 0);
+			return_error = BR_FAILED_REPLY;
+			in_reply_to = NULL;
+			goto err_bad_call_stack;
+		}
+		thread->transaction_stack = in_reply_to->to_parent;
+		target_thread = in_reply_to->from;
+		if (target_thread == NULL) {
+			return_error = BR_DEAD_REPLY;
+			goto err_dead_binder;
+		}
+		if (target_thread->transaction_stack != in_reply_to) {
+			binder_user_error("binder: %d:%d got reply transaction "
+				"with bad target transaction stack %d, "
+				"expected %d\n",
+				proc->pid, thread->pid,
+				target_thread->transaction_stack ?
+				target_thread->transaction_stack->debug_id : 0,
+				in_reply_to->debug_id);
+			return_error = BR_FAILED_REPLY;
+			in_reply_to = NULL;
+			target_thread = NULL;
+			goto err_dead_binder;
+		}
+		target_proc = target_thread->proc;
+	} else {
+		if (tr->target.handle) {
+			struct binder_ref *ref;
+			ref = binder_get_ref(proc, tr->target.handle);
+			if (ref == NULL) {
+				binder_user_error("binder: %d:%d got "
+					"transaction to invalid handle\n",
+					proc->pid, thread->pid);
+				return_error = BR_FAILED_REPLY;
+				goto err_invalid_target_handle;
+			}
+			target_node = ref->node;
+		} else {
+			target_node = binder_context_mgr_node;
+			if (target_node == NULL) {
+				return_error = BR_DEAD_REPLY;
+				goto err_no_context_mgr_node;
+			}
+		}
+		e->to_node = target_node->debug_id;
+		target_proc = target_node->proc;
+		if (target_proc == NULL) {
+			return_error = BR_DEAD_REPLY;
+			goto err_dead_binder;
+		}
+		if (!(tr->flags & TF_ONE_WAY) && thread->transaction_stack) {
+			struct binder_transaction *tmp;
+			tmp = thread->transaction_stack;
+			if (tmp->to_thread != thread) {
+				binder_user_error("binder: %d:%d got new "
+					"transaction with bad transaction stack"
+					", transaction %d has target %d:%d\n",
+					proc->pid, thread->pid, tmp->debug_id,
+					tmp->to_proc ? tmp->to_proc->pid : 0,
+					tmp->to_thread ?
+					tmp->to_thread->pid : 0);
+				return_error = BR_FAILED_REPLY;
+				goto err_bad_call_stack;
+			}
+			while (tmp) {
+				if (tmp->from && tmp->from->proc == target_proc)
+					target_thread = tmp->from;
+				tmp = tmp->from_parent;
+			}
+		}
+	}
+	if (target_thread) {
+		e->to_thread = target_thread->pid;
+		target_list = &target_thread->todo;
+		target_wait = &target_thread->wait;
+	} else {
+		target_list = &target_proc->todo;
+		target_wait = &target_proc->wait;
+	}
+	e->to_proc = target_proc->pid;
+
+	/* TODO: reuse incoming transaction for reply */
+	t = kzalloc(sizeof(*t), GFP_KERNEL);
+	if (t == NULL) {
+		return_error = BR_FAILED_REPLY;
+		goto err_alloc_t_failed;
+	}
+	binder_stats_created(BINDER_STAT_TRANSACTION);
+
+	tcomplete = kzalloc(sizeof(*tcomplete), GFP_KERNEL);
+	if (tcomplete == NULL) {
+		return_error = BR_FAILED_REPLY;
+		goto err_alloc_tcomplete_failed;
+	}
+	binder_stats_created(BINDER_STAT_TRANSACTION_COMPLETE);
+
+	t->debug_id = ++binder_last_id;
+	e->debug_id = t->debug_id;
+
+	if (reply)
+		binder_debug(BINDER_DEBUG_TRANSACTION,
+			     "binder: %d:%d BC_REPLY %d -> %d:%d, "
+			     "data %p-%p size %zd-%zd\n",
+			     proc->pid, thread->pid, t->debug_id,
+			     target_proc->pid, target_thread->pid,
+			     tr->data.ptr.buffer, tr->data.ptr.offsets,
+			     tr->data_size, tr->offsets_size);
+	else
+		binder_debug(BINDER_DEBUG_TRANSACTION,
+			     "binder: %d:%d BC_TRANSACTION %d -> "
+			     "%d - node %d, data %p-%p size %zd-%zd\n",
+			     proc->pid, thread->pid, t->debug_id,
+			     target_proc->pid, target_node->debug_id,
+			     tr->data.ptr.buffer, tr->data.ptr.offsets,
+			     tr->data_size, tr->offsets_size);
+
+	if (!reply && !(tr->flags & TF_ONE_WAY))
+		t->from = thread;
+	else
+		t->from = NULL;
+	t->sender_euid = proc->tsk->cred->euid;
+	t->to_proc = target_proc;
+	t->to_thread = target_thread;
+	t->code = tr->code;
+	t->flags = tr->flags;
+	t->priority = task_nice(current);
+	t->buffer = binder_alloc_buf(target_proc, tr->data_size,
+		tr->offsets_size, !reply && (t->flags & TF_ONE_WAY));
+	if (t->buffer == NULL) {
+		return_error = BR_FAILED_REPLY;
+		goto err_binder_alloc_buf_failed;
+	}
+	t->buffer->allow_user_free = 0;
+	t->buffer->debug_id = t->debug_id;
+	t->buffer->transaction = t;
+	t->buffer->target_node = target_node;
+	if (target_node)
+		binder_inc_node(target_node, 1, 0, NULL);
+
+	offp = (size_t *)(t->buffer->data + ALIGN(tr->data_size, sizeof(void *)));
+
+	if (copy_from_user(t->buffer->data, tr->data.ptr.buffer, tr->data_size)) {
+		binder_user_error("binder: %d:%d got transaction with invalid "
+			"data ptr\n", proc->pid, thread->pid);
+		return_error = BR_FAILED_REPLY;
+		goto err_copy_data_failed;
+	}
+	if (copy_from_user(offp, tr->data.ptr.offsets, tr->offsets_size)) {
+		binder_user_error("binder: %d:%d got transaction with invalid "
+			"offsets ptr\n", proc->pid, thread->pid);
+		return_error = BR_FAILED_REPLY;
+		goto err_copy_data_failed;
+	}
+	if (!IS_ALIGNED(tr->offsets_size, sizeof(size_t))) {
+		binder_user_error("binder: %d:%d got transaction with "
+			"invalid offsets size, %zd\n",
+			proc->pid, thread->pid, tr->offsets_size);
+		return_error = BR_FAILED_REPLY;
+		goto err_bad_offset;
+	}
+	off_end = (void *)offp + tr->offsets_size;
+	for (; offp < off_end; offp++) {
+		struct flat_binder_object *fp;
+		if (*offp > t->buffer->data_size - sizeof(*fp) ||
+		    t->buffer->data_size < sizeof(*fp) ||
+		    !IS_ALIGNED(*offp, sizeof(void *))) {
+			binder_user_error("binder: %d:%d got transaction with "
+				"invalid offset, %zd\n",
+				proc->pid, thread->pid, *offp);
+			return_error = BR_FAILED_REPLY;
+			goto err_bad_offset;
+		}
+		fp = (struct flat_binder_object *)(t->buffer->data + *offp);
+		switch (fp->type) {
+		case BINDER_TYPE_BINDER:
+		case BINDER_TYPE_WEAK_BINDER: {
+			struct binder_ref *ref;
+			struct binder_node *node = binder_get_node(proc, fp->binder);
+			if (node == NULL) {
+				node = binder_new_node(proc, fp->binder, fp->cookie);
+				if (node == NULL) {
+					return_error = BR_FAILED_REPLY;
+					goto err_binder_new_node_failed;
+				}
+				node->min_priority = fp->flags & FLAT_BINDER_FLAG_PRIORITY_MASK;
+				node->accept_fds = !!(fp->flags & FLAT_BINDER_FLAG_ACCEPTS_FDS);
+			}
+			if (fp->cookie != node->cookie) {
+				binder_user_error("binder: %d:%d sending u%p "
+					"node %d, cookie mismatch %p != %p\n",
+					proc->pid, thread->pid,
+					fp->binder, node->debug_id,
+					fp->cookie, node->cookie);
+				goto err_binder_get_ref_for_node_failed;
+			}
+			ref = binder_get_ref_for_node(target_proc, node);
+			if (ref == NULL) {
+				return_error = BR_FAILED_REPLY;
+				goto err_binder_get_ref_for_node_failed;
+			}
+			if (fp->type == BINDER_TYPE_BINDER)
+				fp->type = BINDER_TYPE_HANDLE;
+			else
+				fp->type = BINDER_TYPE_WEAK_HANDLE;
+			fp->handle = ref->desc;
+			binder_inc_ref(ref, fp->type == BINDER_TYPE_HANDLE,
+				       &thread->todo);
+
+			binder_debug(BINDER_DEBUG_TRANSACTION,
+				     "        node %d u%p -> ref %d desc %d\n",
+				     node->debug_id, node->ptr, ref->debug_id,
+				     ref->desc);
+		} break;
+		case BINDER_TYPE_HANDLE:
+		case BINDER_TYPE_WEAK_HANDLE: {
+			struct binder_ref *ref = binder_get_ref(proc, fp->handle);
+			if (ref == NULL) {
+				binder_user_error("binder: %d:%d got "
+					"transaction with invalid "
+					"handle, %ld\n", proc->pid,
+					thread->pid, fp->handle);
+				return_error = BR_FAILED_REPLY;
+				goto err_binder_get_ref_failed;
+			}
+			if (ref->node->proc == target_proc) {
+				if (fp->type == BINDER_TYPE_HANDLE)
+					fp->type = BINDER_TYPE_BINDER;
+				else
+					fp->type = BINDER_TYPE_WEAK_BINDER;
+				fp->binder = ref->node->ptr;
+				fp->cookie = ref->node->cookie;
+				binder_inc_node(ref->node, fp->type == BINDER_TYPE_BINDER, 0, NULL);
+				binder_debug(BINDER_DEBUG_TRANSACTION,
+					     "        ref %d desc %d -> node %d u%p\n",
+					     ref->debug_id, ref->desc, ref->node->debug_id,
+					     ref->node->ptr);
+			} else {
+				struct binder_ref *new_ref;
+				new_ref = binder_get_ref_for_node(target_proc, ref->node);
+				if (new_ref == NULL) {
+					return_error = BR_FAILED_REPLY;
+					goto err_binder_get_ref_for_node_failed;
+				}
+				fp->handle = new_ref->desc;
+				binder_inc_ref(new_ref, fp->type == BINDER_TYPE_HANDLE, NULL);
+				binder_debug(BINDER_DEBUG_TRANSACTION,
+					     "        ref %d desc %d -> ref %d desc %d (node %d)\n",
+					     ref->debug_id, ref->desc, new_ref->debug_id,
+					     new_ref->desc, ref->node->debug_id);
+			}
+		} break;
+
+		case BINDER_TYPE_FD: {
+			int target_fd;
+			struct file *file;
+
+			if (reply) {
+				if (!(in_reply_to->flags & TF_ACCEPT_FDS)) {
+					binder_user_error("binder: %d:%d got reply with fd, %ld, but target does not allow fds\n",
+						proc->pid, thread->pid, fp->handle);
+					return_error = BR_FAILED_REPLY;
+					goto err_fd_not_allowed;
+				}
+			} else if (!target_node->accept_fds) {
+				binder_user_error("binder: %d:%d got transaction with fd, %ld, but target does not allow fds\n",
+					proc->pid, thread->pid, fp->handle);
+				return_error = BR_FAILED_REPLY;
+				goto err_fd_not_allowed;
+			}
+
+			file = fget(fp->handle);
+			if (file == NULL) {
+				binder_user_error("binder: %d:%d got transaction with invalid fd, %ld\n",
+					proc->pid, thread->pid, fp->handle);
+				return_error = BR_FAILED_REPLY;
+				goto err_fget_failed;
+			}
+			target_fd = task_get_unused_fd_flags(target_proc, O_CLOEXEC);
+			if (target_fd < 0) {
+				fput(file);
+				return_error = BR_FAILED_REPLY;
+				goto err_get_unused_fd_failed;
+			}
+			task_fd_install(target_proc, target_fd, file);
+			binder_debug(BINDER_DEBUG_TRANSACTION,
+				     "        fd %ld -> %d\n", fp->handle, target_fd);
+			/* TODO: fput? */
+			fp->handle = target_fd;
+		} break;
+
+		default:
+			binder_user_error("binder: %d:%d got transactio"
+				"n with invalid object type, %lx\n",
+				proc->pid, thread->pid, fp->type);
+			return_error = BR_FAILED_REPLY;
+			goto err_bad_object_type;
+		}
+	}
+	if (reply) {
+		BUG_ON(t->buffer->async_transaction != 0);
+		binder_pop_transaction(target_thread, in_reply_to);
+	} else if (!(t->flags & TF_ONE_WAY)) {
+		BUG_ON(t->buffer->async_transaction != 0);
+		t->need_reply = 1;
+		t->from_parent = thread->transaction_stack;
+		thread->transaction_stack = t;
+	} else {
+		BUG_ON(target_node == NULL);
+		BUG_ON(t->buffer->async_transaction != 1);
+		if (target_node->has_async_transaction) {
+			target_list = &target_node->async_todo;
+			target_wait = NULL;
+		} else
+			target_node->has_async_transaction = 1;
+	}
+	t->work.type = BINDER_WORK_TRANSACTION;
+	list_add_tail(&t->work.entry, target_list);
+	tcomplete->type = BINDER_WORK_TRANSACTION_COMPLETE;
+	list_add_tail(&tcomplete->entry, &thread->todo);
+	if (target_wait)
+		wake_up_interruptible(target_wait);
+	return;
+
+err_get_unused_fd_failed:
+err_fget_failed:
+err_fd_not_allowed:
+err_binder_get_ref_for_node_failed:
+err_binder_get_ref_failed:
+err_binder_new_node_failed:
+err_bad_object_type:
+err_bad_offset:
+err_copy_data_failed:
+	binder_transaction_buffer_release(target_proc, t->buffer, offp);
+	t->buffer->transaction = NULL;
+	binder_free_buf(target_proc, t->buffer);
+err_binder_alloc_buf_failed:
+	kfree(tcomplete);
+	binder_stats_deleted(BINDER_STAT_TRANSACTION_COMPLETE);
+err_alloc_tcomplete_failed:
+	kfree(t);
+	binder_stats_deleted(BINDER_STAT_TRANSACTION);
+err_alloc_t_failed:
+err_bad_call_stack:
+err_empty_call_stack:
+err_dead_binder:
+err_invalid_target_handle:
+err_no_context_mgr_node:
+	binder_debug(BINDER_DEBUG_FAILED_TRANSACTION,
+		     "binder: %d:%d transaction failed %d, size %zd-%zd\n",
+		     proc->pid, thread->pid, return_error,
+		     tr->data_size, tr->offsets_size);
+
+	{
+		struct binder_transaction_log_entry *fe;
+		fe = binder_transaction_log_add(&binder_transaction_log_failed);
+		*fe = *e;
+	}
+
+	BUG_ON(thread->return_error != BR_OK);
+	if (in_reply_to) {
+		thread->return_error = BR_TRANSACTION_COMPLETE;
+		binder_send_failed_reply(in_reply_to, return_error);
+	} else
+		thread->return_error = return_error;
+}
+
+int binder_thread_write(struct binder_proc *proc, struct binder_thread *thread,
+			void __user *buffer, int size, signed long *consumed)
+{
+	uint32_t cmd;
+	void __user *ptr = buffer + *consumed;
+	void __user *end = buffer + size;
+
+	while (ptr < end && thread->return_error == BR_OK) {
+		if (get_user(cmd, (uint32_t __user *)ptr))
+			return -EFAULT;
+		ptr += sizeof(uint32_t);
+		if (_IOC_NR(cmd) < ARRAY_SIZE(binder_stats.bc)) {
+			binder_stats.bc[_IOC_NR(cmd)]++;
+			proc->stats.bc[_IOC_NR(cmd)]++;
+			thread->stats.bc[_IOC_NR(cmd)]++;
+		}
+		switch (cmd) {
+		case BC_INCREFS:
+		case BC_ACQUIRE:
+		case BC_RELEASE:
+		case BC_DECREFS: {
+			uint32_t target;
+			struct binder_ref *ref;
+			const char *debug_string;
+
+			if (get_user(target, (uint32_t __user *)ptr))
+				return -EFAULT;
+			ptr += sizeof(uint32_t);
+			if (target == 0 && binder_context_mgr_node &&
+			    (cmd == BC_INCREFS || cmd == BC_ACQUIRE)) {
+				ref = binder_get_ref_for_node(proc,
+					       binder_context_mgr_node);
+				if (ref->desc != target) {
+					binder_user_error("binder: %d:"
+						"%d tried to acquire "
+						"reference to desc 0, "
+						"got %d instead\n",
+						proc->pid, thread->pid,
+						ref->desc);
+				}
+			} else
+				ref = binder_get_ref(proc, target);
+			if (ref == NULL) {
+				binder_user_error("binder: %d:%d refcou"
+					"nt change on invalid ref %d\n",
+					proc->pid, thread->pid, target);
+				break;
+			}
+			switch (cmd) {
+			case BC_INCREFS:
+				debug_string = "IncRefs";
+				binder_inc_ref(ref, 0, NULL);
+				break;
+			case BC_ACQUIRE:
+				debug_string = "Acquire";
+				binder_inc_ref(ref, 1, NULL);
+				break;
+			case BC_RELEASE:
+				debug_string = "Release";
+				binder_dec_ref(ref, 1);
+				break;
+			case BC_DECREFS:
+			default:
+				debug_string = "DecRefs";
+				binder_dec_ref(ref, 0);
+				break;
+			}
+			binder_debug(BINDER_DEBUG_USER_REFS,
+				     "binder: %d:%d %s ref %d desc %d s %d w %d for node %d\n",
+				     proc->pid, thread->pid, debug_string, ref->debug_id,
+				     ref->desc, ref->strong, ref->weak, ref->node->debug_id);
+			break;
+		}
+		case BC_INCREFS_DONE:
+		case BC_ACQUIRE_DONE: {
+			void __user *node_ptr;
+			void *cookie;
+			struct binder_node *node;
+
+			if (get_user(node_ptr, (void * __user *)ptr))
+				return -EFAULT;
+			ptr += sizeof(void *);
+			if (get_user(cookie, (void * __user *)ptr))
+				return -EFAULT;
+			ptr += sizeof(void *);
+			node = binder_get_node(proc, node_ptr);
+			if (node == NULL) {
+				binder_user_error("binder: %d:%d "
+					"%s u%p no match\n",
+					proc->pid, thread->pid,
+					cmd == BC_INCREFS_DONE ?
+					"BC_INCREFS_DONE" :
+					"BC_ACQUIRE_DONE",
+					node_ptr);
+				break;
+			}
+			if (cookie != node->cookie) {
+				binder_user_error("binder: %d:%d %s u%p node %d"
+					" cookie mismatch %p != %p\n",
+					proc->pid, thread->pid,
+					cmd == BC_INCREFS_DONE ?
+					"BC_INCREFS_DONE" : "BC_ACQUIRE_DONE",
+					node_ptr, node->debug_id,
+					cookie, node->cookie);
+				break;
+			}
+			if (cmd == BC_ACQUIRE_DONE) {
+				if (node->pending_strong_ref == 0) {
+					binder_user_error("binder: %d:%d "
+						"BC_ACQUIRE_DONE node %d has "
+						"no pending acquire request\n",
+						proc->pid, thread->pid,
+						node->debug_id);
+					break;
+				}
+				node->pending_strong_ref = 0;
+			} else {
+				if (node->pending_weak_ref == 0) {
+					binder_user_error("binder: %d:%d "
+						"BC_INCREFS_DONE node %d has "
+						"no pending increfs request\n",
+						proc->pid, thread->pid,
+						node->debug_id);
+					break;
+				}
+				node->pending_weak_ref = 0;
+			}
+			binder_dec_node(node, cmd == BC_ACQUIRE_DONE, 0);
+			binder_debug(BINDER_DEBUG_USER_REFS,
+				     "binder: %d:%d %s node %d ls %d lw %d\n",
+				     proc->pid, thread->pid,
+				     cmd == BC_INCREFS_DONE ? "BC_INCREFS_DONE" : "BC_ACQUIRE_DONE",
+				     node->debug_id, node->local_strong_refs, node->local_weak_refs);
+			break;
+		}
+		case BC_ATTEMPT_ACQUIRE:
+			printk(KERN_ERR "binder: BC_ATTEMPT_ACQUIRE not supported\n");
+			return -EINVAL;
+		case BC_ACQUIRE_RESULT:
+			printk(KERN_ERR "binder: BC_ACQUIRE_RESULT not supported\n");
+			return -EINVAL;
+
+		case BC_FREE_BUFFER: {
+			void __user *data_ptr;
+			struct binder_buffer *buffer;
+
+			if (get_user(data_ptr, (void * __user *)ptr))
+				return -EFAULT;
+			ptr += sizeof(void *);
+
+			buffer = binder_buffer_lookup(proc, data_ptr);
+			if (buffer == NULL) {
+				binder_user_error("binder: %d:%d "
+					"BC_FREE_BUFFER u%p no match\n",
+					proc->pid, thread->pid, data_ptr);
+				break;
+			}
+			if (!buffer->allow_user_free) {
+				binder_user_error("binder: %d:%d "
+					"BC_FREE_BUFFER u%p matched "
+					"unreturned buffer\n",
+					proc->pid, thread->pid, data_ptr);
+				break;
+			}
+			binder_debug(BINDER_DEBUG_FREE_BUFFER,
+				     "binder: %d:%d BC_FREE_BUFFER u%p found buffer %d for %s transaction\n",
+				     proc->pid, thread->pid, data_ptr, buffer->debug_id,
+				     buffer->transaction ? "active" : "finished");
+
+			if (buffer->transaction) {
+				buffer->transaction->buffer = NULL;
+				buffer->transaction = NULL;
+			}
+			if (buffer->async_transaction && buffer->target_node) {
+				BUG_ON(!buffer->target_node->has_async_transaction);
+				if (list_empty(&buffer->target_node->async_todo))
+					buffer->target_node->has_async_transaction = 0;
+				else
+					list_move_tail(buffer->target_node->async_todo.next, &thread->todo);
+			}
+			binder_transaction_buffer_release(proc, buffer, NULL);
+			binder_free_buf(proc, buffer);
+			break;
+		}
+
+		case BC_TRANSACTION:
+		case BC_REPLY: {
+			struct binder_transaction_data tr;
+
+			if (copy_from_user(&tr, ptr, sizeof(tr)))
+				return -EFAULT;
+			ptr += sizeof(tr);
+			binder_transaction(proc, thread, &tr, cmd == BC_REPLY);
+			break;
+		}
+
+		case BC_REGISTER_LOOPER:
+			binder_debug(BINDER_DEBUG_THREADS,
+				     "binder: %d:%d BC_REGISTER_LOOPER\n",
+				     proc->pid, thread->pid);
+			if (thread->looper & BINDER_LOOPER_STATE_ENTERED) {
+				thread->looper |= BINDER_LOOPER_STATE_INVALID;
+				binder_user_error("binder: %d:%d ERROR:"
+					" BC_REGISTER_LOOPER called "
+					"after BC_ENTER_LOOPER\n",
+					proc->pid, thread->pid);
+			} else if (proc->requested_threads == 0) {
+				thread->looper |= BINDER_LOOPER_STATE_INVALID;
+				binder_user_error("binder: %d:%d ERROR:"
+					" BC_REGISTER_LOOPER called "
+					"without request\n",
+					proc->pid, thread->pid);
+			} else {
+				proc->requested_threads--;
+				proc->requested_threads_started++;
+			}
+			thread->looper |= BINDER_LOOPER_STATE_REGISTERED;
+			break;
+		case BC_ENTER_LOOPER:
+			binder_debug(BINDER_DEBUG_THREADS,
+				     "binder: %d:%d BC_ENTER_LOOPER\n",
+				     proc->pid, thread->pid);
+			if (thread->looper & BINDER_LOOPER_STATE_REGISTERED) {
+				thread->looper |= BINDER_LOOPER_STATE_INVALID;
+				binder_user_error("binder: %d:%d ERROR:"
+					" BC_ENTER_LOOPER called after "
+					"BC_REGISTER_LOOPER\n",
+					proc->pid, thread->pid);
+			}
+			thread->looper |= BINDER_LOOPER_STATE_ENTERED;
+			break;
+		case BC_EXIT_LOOPER:
+			binder_debug(BINDER_DEBUG_THREADS,
+				     "binder: %d:%d BC_EXIT_LOOPER\n",
+				     proc->pid, thread->pid);
+			thread->looper |= BINDER_LOOPER_STATE_EXITED;
+			break;
+
+		case BC_REQUEST_DEATH_NOTIFICATION:
+		case BC_CLEAR_DEATH_NOTIFICATION: {
+			uint32_t target;
+			void __user *cookie;
+			struct binder_ref *ref;
+			struct binder_ref_death *death;
+
+			if (get_user(target, (uint32_t __user *)ptr))
+				return -EFAULT;
+			ptr += sizeof(uint32_t);
+			if (get_user(cookie, (void __user * __user *)ptr))
+				return -EFAULT;
+			ptr += sizeof(void *);
+			ref = binder_get_ref(proc, target);
+			if (ref == NULL) {
+				binder_user_error("binder: %d:%d %s "
+					"invalid ref %d\n",
+					proc->pid, thread->pid,
+					cmd == BC_REQUEST_DEATH_NOTIFICATION ?
+					"BC_REQUEST_DEATH_NOTIFICATION" :
+					"BC_CLEAR_DEATH_NOTIFICATION",
+					target);
+				break;
+			}
+
+			binder_debug(BINDER_DEBUG_DEATH_NOTIFICATION,
+				     "binder: %d:%d %s %p ref %d desc %d s %d w %d for node %d\n",
+				     proc->pid, thread->pid,
+				     cmd == BC_REQUEST_DEATH_NOTIFICATION ?
+				     "BC_REQUEST_DEATH_NOTIFICATION" :
+				     "BC_CLEAR_DEATH_NOTIFICATION",
+				     cookie, ref->debug_id, ref->desc,
+				     ref->strong, ref->weak, ref->node->debug_id);
+
+			if (cmd == BC_REQUEST_DEATH_NOTIFICATION) {
+				if (ref->death) {
+					binder_user_error("binder: %d:%"
+						"d BC_REQUEST_DEATH_NOTI"
+						"FICATION death notific"
+						"ation already set\n",
+						proc->pid, thread->pid);
+					break;
+				}
+				death = kzalloc(sizeof(*death), GFP_KERNEL);
+				if (death == NULL) {
+					thread->return_error = BR_ERROR;
+					binder_debug(BINDER_DEBUG_FAILED_TRANSACTION,
+						     "binder: %d:%d "
+						     "BC_REQUEST_DEATH_NOTIFICATION failed\n",
+						     proc->pid, thread->pid);
+					break;
+				}
+				binder_stats_created(BINDER_STAT_DEATH);
+				INIT_LIST_HEAD(&death->work.entry);
+				death->cookie = cookie;
+				ref->death = death;
+				if (ref->node->proc == NULL) {
+					ref->death->work.type = BINDER_WORK_DEAD_BINDER;
+					if (thread->looper & (BINDER_LOOPER_STATE_REGISTERED | BINDER_LOOPER_STATE_ENTERED)) {
+						list_add_tail(&ref->death->work.entry, &thread->todo);
+					} else {
+						list_add_tail(&ref->death->work.entry, &proc->todo);
+						wake_up_interruptible(&proc->wait);
+					}
+				}
+			} else {
+				if (ref->death == NULL) {
+					binder_user_error("binder: %d:%"
+						"d BC_CLEAR_DEATH_NOTIFI"
+						"CATION death notificat"
+						"ion not active\n",
+						proc->pid, thread->pid);
+					break;
+				}
+				death = ref->death;
+				if (death->cookie != cookie) {
+					binder_user_error("binder: %d:%"
+						"d BC_CLEAR_DEATH_NOTIFI"
+						"CATION death notificat"
+						"ion cookie mismatch "
+						"%p != %p\n",
+						proc->pid, thread->pid,
+						death->cookie, cookie);
+					break;
+				}
+				ref->death = NULL;
+				if (list_empty(&death->work.entry)) {
+					death->work.type = BINDER_WORK_CLEAR_DEATH_NOTIFICATION;
+					if (thread->looper & (BINDER_LOOPER_STATE_REGISTERED | BINDER_LOOPER_STATE_ENTERED)) {
+						list_add_tail(&death->work.entry, &thread->todo);
+					} else {
+						list_add_tail(&death->work.entry, &proc->todo);
+						wake_up_interruptible(&proc->wait);
+					}
+				} else {
+					BUG_ON(death->work.type != BINDER_WORK_DEAD_BINDER);
+					death->work.type = BINDER_WORK_DEAD_BINDER_AND_CLEAR;
+				}
+			}
+		} break;
+		case BC_DEAD_BINDER_DONE: {
+			struct binder_work *w;
+			void __user *cookie;
+			struct binder_ref_death *death = NULL;
+			if (get_user(cookie, (void __user * __user *)ptr))
+				return -EFAULT;
+
+			ptr += sizeof(void *);
+			list_for_each_entry(w, &proc->delivered_death, entry) {
+				struct binder_ref_death *tmp_death = container_of(w, struct binder_ref_death, work);
+				if (tmp_death->cookie == cookie) {
+					death = tmp_death;
+					break;
+				}
+			}
+			binder_debug(BINDER_DEBUG_DEAD_BINDER,
+				     "binder: %d:%d BC_DEAD_BINDER_DONE %p found %p\n",
+				     proc->pid, thread->pid, cookie, death);
+			if (death == NULL) {
+				binder_user_error("binder: %d:%d BC_DEAD"
+					"_BINDER_DONE %p not found\n",
+					proc->pid, thread->pid, cookie);
+				break;
+			}
+
+			list_del_init(&death->work.entry);
+			if (death->work.type == BINDER_WORK_DEAD_BINDER_AND_CLEAR) {
+				death->work.type = BINDER_WORK_CLEAR_DEATH_NOTIFICATION;
+				if (thread->looper & (BINDER_LOOPER_STATE_REGISTERED | BINDER_LOOPER_STATE_ENTERED)) {
+					list_add_tail(&death->work.entry, &thread->todo);
+				} else {
+					list_add_tail(&death->work.entry, &proc->todo);
+					wake_up_interruptible(&proc->wait);
+				}
+			}
+		} break;
+
+		default:
+			printk(KERN_ERR "binder: %d:%d unknown command %d\n",
+			       proc->pid, thread->pid, cmd);
+			return -EINVAL;
+		}
+		*consumed = ptr - buffer;
+	}
+	return 0;
+}
+
+void binder_stat_br(struct binder_proc *proc, struct binder_thread *thread,
+		    uint32_t cmd)
+{
+	if (_IOC_NR(cmd) < ARRAY_SIZE(binder_stats.br)) {
+		binder_stats.br[_IOC_NR(cmd)]++;
+		proc->stats.br[_IOC_NR(cmd)]++;
+		thread->stats.br[_IOC_NR(cmd)]++;
+	}
+}
+
+static int binder_has_proc_work(struct binder_proc *proc,
+				struct binder_thread *thread)
+{
+	return !list_empty(&proc->todo) ||
+		(thread->looper & BINDER_LOOPER_STATE_NEED_RETURN);
+}
+
+static int binder_has_thread_work(struct binder_thread *thread)
+{
+	return !list_empty(&thread->todo) || thread->return_error != BR_OK ||
+		(thread->looper & BINDER_LOOPER_STATE_NEED_RETURN);
+}
+
+static int binder_thread_read(struct binder_proc *proc,
+			      struct binder_thread *thread,
+			      void  __user *buffer, int size,
+			      signed long *consumed, int non_block)
+{
+	void __user *ptr = buffer + *consumed;
+	void __user *end = buffer + size;
+
+	int ret = 0;
+	int wait_for_proc_work;
+
+	if (*consumed == 0) {
+		if (put_user(BR_NOOP, (uint32_t __user *)ptr))
+			return -EFAULT;
+		ptr += sizeof(uint32_t);
+	}
+
+retry:
+	wait_for_proc_work = thread->transaction_stack == NULL &&
+				list_empty(&thread->todo);
+
+	if (thread->return_error != BR_OK && ptr < end) {
+		if (thread->return_error2 != BR_OK) {
+			if (put_user(thread->return_error2, (uint32_t __user *)ptr))
+				return -EFAULT;
+			ptr += sizeof(uint32_t);
+			if (ptr == end)
+				goto done;
+			thread->return_error2 = BR_OK;
+		}
+		if (put_user(thread->return_error, (uint32_t __user *)ptr))
+			return -EFAULT;
+		ptr += sizeof(uint32_t);
+		thread->return_error = BR_OK;
+		goto done;
+	}
+
+
+	thread->looper |= BINDER_LOOPER_STATE_WAITING;
+	if (wait_for_proc_work)
+		proc->ready_threads++;
+	mutex_unlock(&binder_lock);
+	if (wait_for_proc_work) {
+		if (!(thread->looper & (BINDER_LOOPER_STATE_REGISTERED |
+					BINDER_LOOPER_STATE_ENTERED))) {
+			binder_user_error("binder: %d:%d ERROR: Thread waiting "
+				"for process work before calling BC_REGISTER_"
+				"LOOPER or BC_ENTER_LOOPER (state %x)\n",
+				proc->pid, thread->pid, thread->looper);
+			wait_event_interruptible(binder_user_error_wait,
+						 binder_stop_on_user_error < 2);
+		}
+		binder_set_nice(proc->default_priority);
+		if (non_block) {
+			if (!binder_has_proc_work(proc, thread))
+				ret = -EAGAIN;
+		} else
+			ret = wait_event_interruptible_exclusive(proc->wait, binder_has_proc_work(proc, thread));
+	} else {
+		if (non_block) {
+			if (!binder_has_thread_work(thread))
+				ret = -EAGAIN;
+		} else
+			ret = wait_event_interruptible(thread->wait, binder_has_thread_work(thread));
+	}
+	mutex_lock(&binder_lock);
+	if (wait_for_proc_work)
+		proc->ready_threads--;
+	thread->looper &= ~BINDER_LOOPER_STATE_WAITING;
+
+	if (ret)
+		return ret;
+
+	while (1) {
+		uint32_t cmd;
+		struct binder_transaction_data tr;
+		struct binder_work *w;
+		struct binder_transaction *t = NULL;
+
+		if (!list_empty(&thread->todo))
+			w = list_first_entry(&thread->todo, struct binder_work, entry);
+		else if (!list_empty(&proc->todo) && wait_for_proc_work)
+			w = list_first_entry(&proc->todo, struct binder_work, entry);
+		else {
+			if (ptr - buffer == 4 && !(thread->looper & BINDER_LOOPER_STATE_NEED_RETURN)) /* no data added */
+				goto retry;
+			break;
+		}
+
+		if (end - ptr < sizeof(tr) + 4)
+			break;
+
+		switch (w->type) {
+		case BINDER_WORK_TRANSACTION: {
+			t = container_of(w, struct binder_transaction, work);
+		} break;
+		case BINDER_WORK_TRANSACTION_COMPLETE: {
+			cmd = BR_TRANSACTION_COMPLETE;
+			if (put_user(cmd, (uint32_t __user *)ptr))
+				return -EFAULT;
+			ptr += sizeof(uint32_t);
+
+			binder_stat_br(proc, thread, cmd);
+			binder_debug(BINDER_DEBUG_TRANSACTION_COMPLETE,
+				     "binder: %d:%d BR_TRANSACTION_COMPLETE\n",
+				     proc->pid, thread->pid);
+
+			list_del(&w->entry);
+			kfree(w);
+			binder_stats_deleted(BINDER_STAT_TRANSACTION_COMPLETE);
+		} break;
+		case BINDER_WORK_NODE: {
+			struct binder_node *node = container_of(w, struct binder_node, work);
+			uint32_t cmd = BR_NOOP;
+			const char *cmd_name;
+			int strong = node->internal_strong_refs || node->local_strong_refs;
+			int weak = !hlist_empty(&node->refs) || node->local_weak_refs || strong;
+			if (weak && !node->has_weak_ref) {
+				cmd = BR_INCREFS;
+				cmd_name = "BR_INCREFS";
+				node->has_weak_ref = 1;
+				node->pending_weak_ref = 1;
+				node->local_weak_refs++;
+			} else if (strong && !node->has_strong_ref) {
+				cmd = BR_ACQUIRE;
+				cmd_name = "BR_ACQUIRE";
+				node->has_strong_ref = 1;
+				node->pending_strong_ref = 1;
+				node->local_strong_refs++;
+			} else if (!strong && node->has_strong_ref) {
+				cmd = BR_RELEASE;
+				cmd_name = "BR_RELEASE";
+				node->has_strong_ref = 0;
+			} else if (!weak && node->has_weak_ref) {
+				cmd = BR_DECREFS;
+				cmd_name = "BR_DECREFS";
+				node->has_weak_ref = 0;
+			}
+			if (cmd != BR_NOOP) {
+				if (put_user(cmd, (uint32_t __user *)ptr))
+					return -EFAULT;
+				ptr += sizeof(uint32_t);
+				if (put_user(node->ptr, (void * __user *)ptr))
+					return -EFAULT;
+				ptr += sizeof(void *);
+				if (put_user(node->cookie, (void * __user *)ptr))
+					return -EFAULT;
+				ptr += sizeof(void *);
+
+				binder_stat_br(proc, thread, cmd);
+				binder_debug(BINDER_DEBUG_USER_REFS,
+					     "binder: %d:%d %s %d u%p c%p\n",
+					     proc->pid, thread->pid, cmd_name, node->debug_id, node->ptr, node->cookie);
+			} else {
+				list_del_init(&w->entry);
+				if (!weak && !strong) {
+					binder_debug(BINDER_DEBUG_INTERNAL_REFS,
+						     "binder: %d:%d node %d u%p c%p deleted\n",
+						     proc->pid, thread->pid, node->debug_id,
+						     node->ptr, node->cookie);
+					rb_erase(&node->rb_node, &proc->nodes);
+					kfree(node);
+					binder_stats_deleted(BINDER_STAT_NODE);
+				} else {
+					binder_debug(BINDER_DEBUG_INTERNAL_REFS,
+						     "binder: %d:%d node %d u%p c%p state unchanged\n",
+						     proc->pid, thread->pid, node->debug_id, node->ptr,
+						     node->cookie);
+				}
+			}
+		} break;
+		case BINDER_WORK_DEAD_BINDER:
+		case BINDER_WORK_DEAD_BINDER_AND_CLEAR:
+		case BINDER_WORK_CLEAR_DEATH_NOTIFICATION: {
+			struct binder_ref_death *death;
+			uint32_t cmd;
+
+			death = container_of(w, struct binder_ref_death, work);
+			if (w->type == BINDER_WORK_CLEAR_DEATH_NOTIFICATION)
+				cmd = BR_CLEAR_DEATH_NOTIFICATION_DONE;
+			else
+				cmd = BR_DEAD_BINDER;
+			if (put_user(cmd, (uint32_t __user *)ptr))
+				return -EFAULT;
+			ptr += sizeof(uint32_t);
+			if (put_user(death->cookie, (void * __user *)ptr))
+				return -EFAULT;
+			ptr += sizeof(void *);
+			binder_debug(BINDER_DEBUG_DEATH_NOTIFICATION,
+				     "binder: %d:%d %s %p\n",
+				      proc->pid, thread->pid,
+				      cmd == BR_DEAD_BINDER ?
+				      "BR_DEAD_BINDER" :
+				      "BR_CLEAR_DEATH_NOTIFICATION_DONE",
+				      death->cookie);
+
+			if (w->type == BINDER_WORK_CLEAR_DEATH_NOTIFICATION) {
+				list_del(&w->entry);
+				kfree(death);
+				binder_stats_deleted(BINDER_STAT_DEATH);
+			} else
+				list_move(&w->entry, &proc->delivered_death);
+			if (cmd == BR_DEAD_BINDER)
+				goto done; /* DEAD_BINDER notifications can cause transactions */
+		} break;
+		}
+
+		if (!t)
+			continue;
+
+		BUG_ON(t->buffer == NULL);
+		if (t->buffer->target_node) {
+			struct binder_node *target_node = t->buffer->target_node;
+			tr.target.ptr = target_node->ptr;
+			tr.cookie =  target_node->cookie;
+			t->saved_priority = task_nice(current);
+			if (t->priority < target_node->min_priority &&
+			    !(t->flags & TF_ONE_WAY))
+				binder_set_nice(t->priority);
+			else if (!(t->flags & TF_ONE_WAY) ||
+				 t->saved_priority > target_node->min_priority)
+				binder_set_nice(target_node->min_priority);
+			cmd = BR_TRANSACTION;
+		} else {
+			tr.target.ptr = NULL;
+			tr.cookie = NULL;
+			cmd = BR_REPLY;
+		}
+		tr.code = t->code;
+		tr.flags = t->flags;
+		tr.sender_euid = t->sender_euid;
+
+		if (t->from) {
+			struct task_struct *sender = t->from->proc->tsk;
+			tr.sender_pid = task_tgid_nr_ns(sender,
+							current->nsproxy->pid_ns);
+		} else {
+			tr.sender_pid = 0;
+		}
+
+		tr.data_size = t->buffer->data_size;
+		tr.offsets_size = t->buffer->offsets_size;
+		tr.data.ptr.buffer = (void *)t->buffer->data +
+					proc->user_buffer_offset;
+		tr.data.ptr.offsets = tr.data.ptr.buffer +
+					ALIGN(t->buffer->data_size,
+					    sizeof(void *));
+
+		if (put_user(cmd, (uint32_t __user *)ptr))
+			return -EFAULT;
+		ptr += sizeof(uint32_t);
+		if (copy_to_user(ptr, &tr, sizeof(tr)))
+			return -EFAULT;
+		ptr += sizeof(tr);
+
+		binder_stat_br(proc, thread, cmd);
+		binder_debug(BINDER_DEBUG_TRANSACTION,
+			     "binder: %d:%d %s %d %d:%d, cmd %d"
+			     "size %zd-%zd ptr %p-%p\n",
+			     proc->pid, thread->pid,
+			     (cmd == BR_TRANSACTION) ? "BR_TRANSACTION" :
+			     "BR_REPLY",
+			     t->debug_id, t->from ? t->from->proc->pid : 0,
+			     t->from ? t->from->pid : 0, cmd,
+			     t->buffer->data_size, t->buffer->offsets_size,
+			     tr.data.ptr.buffer, tr.data.ptr.offsets);
+
+		list_del(&t->work.entry);
+		t->buffer->allow_user_free = 1;
+		if (cmd == BR_TRANSACTION && !(t->flags & TF_ONE_WAY)) {
+			t->to_parent = thread->transaction_stack;
+			t->to_thread = thread;
+			thread->transaction_stack = t;
+		} else {
+			t->buffer->transaction = NULL;
+			kfree(t);
+			binder_stats_deleted(BINDER_STAT_TRANSACTION);
+		}
+		break;
+	}
+
+done:
+
+	*consumed = ptr - buffer;
+	if (proc->requested_threads + proc->ready_threads == 0 &&
+	    proc->requested_threads_started < proc->max_threads &&
+	    (thread->looper & (BINDER_LOOPER_STATE_REGISTERED |
+	     BINDER_LOOPER_STATE_ENTERED)) /* the user-space code fails to */
+	     /*spawn a new thread if we leave this out */) {
+		proc->requested_threads++;
+		binder_debug(BINDER_DEBUG_THREADS,
+			     "binder: %d:%d BR_SPAWN_LOOPER\n",
+			     proc->pid, thread->pid);
+		if (put_user(BR_SPAWN_LOOPER, (uint32_t __user *)buffer))
+			return -EFAULT;
+	}
+	return 0;
+}
+
+static void binder_release_work(struct list_head *list)
+{
+	struct binder_work *w;
+	while (!list_empty(list)) {
+		w = list_first_entry(list, struct binder_work, entry);
+		list_del_init(&w->entry);
+		switch (w->type) {
+		case BINDER_WORK_TRANSACTION: {
+			struct binder_transaction *t;
+
+			t = container_of(w, struct binder_transaction, work);
+			if (t->buffer->target_node && !(t->flags & TF_ONE_WAY))
+				binder_send_failed_reply(t, BR_DEAD_REPLY);
+		} break;
+		case BINDER_WORK_TRANSACTION_COMPLETE: {
+			kfree(w);
+			binder_stats_deleted(BINDER_STAT_TRANSACTION_COMPLETE);
+		} break;
+		default:
+			break;
+		}
+	}
+
+}
+
+static struct binder_thread *binder_get_thread(struct binder_proc *proc)
+{
+	struct binder_thread *thread = NULL;
+	struct rb_node *parent = NULL;
+	struct rb_node **p = &proc->threads.rb_node;
+
+	while (*p) {
+		parent = *p;
+		thread = rb_entry(parent, struct binder_thread, rb_node);
+
+		if (current->pid < thread->pid)
+			p = &(*p)->rb_left;
+		else if (current->pid > thread->pid)
+			p = &(*p)->rb_right;
+		else
+			break;
+	}
+	if (*p == NULL) {
+		thread = kzalloc(sizeof(*thread), GFP_KERNEL);
+		if (thread == NULL)
+			return NULL;
+		binder_stats_created(BINDER_STAT_THREAD);
+		thread->proc = proc;
+		thread->pid = current->pid;
+		init_waitqueue_head(&thread->wait);
+		INIT_LIST_HEAD(&thread->todo);
+		rb_link_node(&thread->rb_node, parent, p);
+		rb_insert_color(&thread->rb_node, &proc->threads);
+		thread->looper |= BINDER_LOOPER_STATE_NEED_RETURN;
+		thread->return_error = BR_OK;
+		thread->return_error2 = BR_OK;
+	}
+	return thread;
+}
+
+static int binder_free_thread(struct binder_proc *proc,
+			      struct binder_thread *thread)
+{
+	struct binder_transaction *t;
+	struct binder_transaction *send_reply = NULL;
+	int active_transactions = 0;
+
+	rb_erase(&thread->rb_node, &proc->threads);
+	t = thread->transaction_stack;
+	if (t && t->to_thread == thread)
+		send_reply = t;
+	while (t) {
+		active_transactions++;
+		binder_debug(BINDER_DEBUG_DEAD_TRANSACTION,
+			     "binder: release %d:%d transaction %d "
+			     "%s, still active\n", proc->pid, thread->pid,
+			     t->debug_id,
+			     (t->to_thread == thread) ? "in" : "out");
+
+		if (t->to_thread == thread) {
+			t->to_proc = NULL;
+			t->to_thread = NULL;
+			if (t->buffer) {
+				t->buffer->transaction = NULL;
+				t->buffer = NULL;
+			}
+			t = t->to_parent;
+		} else if (t->from == thread) {
+			t->from = NULL;
+			t = t->from_parent;
+		} else
+			BUG();
+	}
+	if (send_reply)
+		binder_send_failed_reply(send_reply, BR_DEAD_REPLY);
+	binder_release_work(&thread->todo);
+	kfree(thread);
+	binder_stats_deleted(BINDER_STAT_THREAD);
+	return active_transactions;
+}
+
+static unsigned int binder_poll(struct file *filp,
+				struct poll_table_struct *wait)
+{
+	struct binder_proc *proc = filp->private_data;
+	struct binder_thread *thread = NULL;
+	int wait_for_proc_work;
+
+	mutex_lock(&binder_lock);
+	thread = binder_get_thread(proc);
+
+	wait_for_proc_work = thread->transaction_stack == NULL &&
+		list_empty(&thread->todo) && thread->return_error == BR_OK;
+	mutex_unlock(&binder_lock);
+
+	if (wait_for_proc_work) {
+		if (binder_has_proc_work(proc, thread))
+			return POLLIN;
+		poll_wait(filp, &proc->wait, wait);
+		if (binder_has_proc_work(proc, thread))
+			return POLLIN;
+	} else {
+		if (binder_has_thread_work(thread))
+			return POLLIN;
+		poll_wait(filp, &thread->wait, wait);
+		if (binder_has_thread_work(thread))
+			return POLLIN;
+	}
+	return 0;
+}
+
+static long binder_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+{
+	int ret;
+	struct binder_proc *proc = filp->private_data;
+	struct binder_thread *thread;
+	unsigned int size = _IOC_SIZE(cmd);
+	void __user *ubuf = (void __user *)arg;
+
+	/*printk(KERN_INFO "binder_ioctl: %d:%d %x %lx\n", proc->pid, current->pid, cmd, arg);*/
+
+	ret = wait_event_interruptible(binder_user_error_wait, binder_stop_on_user_error < 2);
+	if (ret)
+		return ret;
+
+	mutex_lock(&binder_lock);
+	thread = binder_get_thread(proc);
+	if (thread == NULL) {
+		ret = -ENOMEM;
+		goto err;
+	}
+
+	switch (cmd) {
+	case BINDER_WRITE_READ: {
+		struct binder_write_read bwr;
+		if (size != sizeof(struct binder_write_read)) {
+			ret = -EINVAL;
+			goto err;
+		}
+		if (copy_from_user(&bwr, ubuf, sizeof(bwr))) {
+			ret = -EFAULT;
+			goto err;
+		}
+		binder_debug(BINDER_DEBUG_READ_WRITE,
+			     "binder: %d:%d write %ld at %08lx, read %ld at %08lx\n",
+			     proc->pid, thread->pid, bwr.write_size, bwr.write_buffer,
+			     bwr.read_size, bwr.read_buffer);
+
+		if (bwr.write_size > 0) {
+			ret = binder_thread_write(proc, thread, (void __user *)bwr.write_buffer, bwr.write_size, &bwr.write_consumed);
+			if (ret < 0) {
+				bwr.read_consumed = 0;
+				if (copy_to_user(ubuf, &bwr, sizeof(bwr)))
+					ret = -EFAULT;
+				goto err;
+			}
+		}
+		if (bwr.read_size > 0) {
+			ret = binder_thread_read(proc, thread, (void __user *)bwr.read_buffer, bwr.read_size, &bwr.read_consumed, filp->f_flags & O_NONBLOCK);
+			if (!list_empty(&proc->todo))
+				wake_up_interruptible(&proc->wait);
+			if (ret < 0) {
+				if (copy_to_user(ubuf, &bwr, sizeof(bwr)))
+					ret = -EFAULT;
+				goto err;
+			}
+		}
+		binder_debug(BINDER_DEBUG_READ_WRITE,
+			     "binder: %d:%d wrote %ld of %ld, read return %ld of %ld\n",
+			     proc->pid, thread->pid, bwr.write_consumed, bwr.write_size,
+			     bwr.read_consumed, bwr.read_size);
+		if (copy_to_user(ubuf, &bwr, sizeof(bwr))) {
+			ret = -EFAULT;
+			goto err;
+		}
+		break;
+	}
+	case BINDER_SET_MAX_THREADS:
+		if (copy_from_user(&proc->max_threads, ubuf, sizeof(proc->max_threads))) {
+			ret = -EINVAL;
+			goto err;
+		}
+		break;
+	case BINDER_SET_CONTEXT_MGR:
+		if (binder_context_mgr_node != NULL) {
+			printk(KERN_ERR "binder: BINDER_SET_CONTEXT_MGR already set\n");
+			ret = -EBUSY;
+			goto err;
+		}
+		if (binder_context_mgr_uid != -1) {
+			if (binder_context_mgr_uid != current->cred->euid) {
+				printk(KERN_ERR "binder: BINDER_SET_"
+				       "CONTEXT_MGR bad uid %d != %d\n",
+				       current->cred->euid,
+				       binder_context_mgr_uid);
+				ret = -EPERM;
+				goto err;
+			}
+		} else
+			binder_context_mgr_uid = current->cred->euid;
+		binder_context_mgr_node = binder_new_node(proc, NULL, NULL);
+		if (binder_context_mgr_node == NULL) {
+			ret = -ENOMEM;
+			goto err;
+		}
+		binder_context_mgr_node->local_weak_refs++;
+		binder_context_mgr_node->local_strong_refs++;
+		binder_context_mgr_node->has_strong_ref = 1;
+		binder_context_mgr_node->has_weak_ref = 1;
+		break;
+	case BINDER_THREAD_EXIT:
+		binder_debug(BINDER_DEBUG_THREADS, "binder: %d:%d exit\n",
+			     proc->pid, thread->pid);
+		binder_free_thread(proc, thread);
+		thread = NULL;
+		break;
+	case BINDER_VERSION:
+		if (size != sizeof(struct binder_version)) {
+			ret = -EINVAL;
+			goto err;
+		}
+		if (put_user(BINDER_CURRENT_PROTOCOL_VERSION, &((struct binder_version *)ubuf)->protocol_version)) {
+			ret = -EINVAL;
+			goto err;
+		}
+		break;
+	default:
+		ret = -EINVAL;
+		goto err;
+	}
+	ret = 0;
+err:
+	if (thread)
+		thread->looper &= ~BINDER_LOOPER_STATE_NEED_RETURN;
+	mutex_unlock(&binder_lock);
+	wait_event_interruptible(binder_user_error_wait, binder_stop_on_user_error < 2);
+	if (ret && ret != -ERESTARTSYS)
+		printk(KERN_INFO "binder: %d:%d ioctl %x %lx returned %d\n", proc->pid, current->pid, cmd, arg, ret);
+	return ret;
+}
+
+static void binder_vma_open(struct vm_area_struct *vma)
+{
+	struct binder_proc *proc = vma->vm_private_data;
+	binder_debug(BINDER_DEBUG_OPEN_CLOSE,
+		     "binder: %d open vm area %lx-%lx (%ld K) vma %lx pagep %lx\n",
+		     proc->pid, vma->vm_start, vma->vm_end,
+		     (vma->vm_end - vma->vm_start) / SZ_1K, vma->vm_flags,
+		     (unsigned long)pgprot_val(vma->vm_page_prot));
+	dump_stack();
+}
+
+static void binder_vma_close(struct vm_area_struct *vma)
+{
+	struct binder_proc *proc = vma->vm_private_data;
+	binder_debug(BINDER_DEBUG_OPEN_CLOSE,
+		     "binder: %d close vm area %lx-%lx (%ld K) vma %lx pagep %lx\n",
+		     proc->pid, vma->vm_start, vma->vm_end,
+		     (vma->vm_end - vma->vm_start) / SZ_1K, vma->vm_flags,
+		     (unsigned long)pgprot_val(vma->vm_page_prot));
+	proc->vma = NULL;
+	binder_defer_work(proc, BINDER_DEFERRED_PUT_FILES);
+}
+
+static struct vm_operations_struct binder_vm_ops = {
+	.open = binder_vma_open,
+	.close = binder_vma_close,
+};
+
+static int binder_mmap(struct file *filp, struct vm_area_struct *vma)
+{
+	int ret;
+	struct vm_struct *area;
+	struct binder_proc *proc = filp->private_data;
+	const char *failure_string;
+	struct binder_buffer *buffer;
+
+	if ((vma->vm_end - vma->vm_start) > SZ_4M)
+		vma->vm_end = vma->vm_start + SZ_4M;
+
+	binder_debug(BINDER_DEBUG_OPEN_CLOSE,
+		     "binder_mmap: %d %lx-%lx (%ld K) vma %lx pagep %lx\n",
+		     proc->pid, vma->vm_start, vma->vm_end,
+		     (vma->vm_end - vma->vm_start) / SZ_1K, vma->vm_flags,
+		     (unsigned long)pgprot_val(vma->vm_page_prot));
+
+	if (vma->vm_flags & FORBIDDEN_MMAP_FLAGS) {
+		ret = -EPERM;
+		failure_string = "bad vm_flags";
+		goto err_bad_arg;
+	}
+	vma->vm_flags = (vma->vm_flags | VM_DONTCOPY) & ~VM_MAYWRITE;
+
+	if (proc->buffer) {
+		ret = -EBUSY;
+		failure_string = "already mapped";
+		goto err_already_mapped;
+	}
+
+	area = get_vm_area(vma->vm_end - vma->vm_start, VM_IOREMAP);
+	if (area == NULL) {
+		ret = -ENOMEM;
+		failure_string = "get_vm_area";
+		goto err_get_vm_area_failed;
+	}
+	proc->buffer = area->addr;
+	proc->user_buffer_offset = vma->vm_start - (uintptr_t)proc->buffer;
+
+#ifdef CONFIG_CPU_CACHE_VIPT
+	if (cache_is_vipt_aliasing()) {
+		while (CACHE_COLOUR((vma->vm_start ^ (uint32_t)proc->buffer))) {
+			printk(KERN_INFO "binder_mmap: %d %lx-%lx maps %p bad alignment\n", proc->pid, vma->vm_start, vma->vm_end, proc->buffer);
+			vma->vm_start += PAGE_SIZE;
+		}
+	}
+#endif
+	proc->pages = kzalloc(sizeof(proc->pages[0]) * ((vma->vm_end - vma->vm_start) / PAGE_SIZE), GFP_KERNEL);
+	if (proc->pages == NULL) {
+		ret = -ENOMEM;
+		failure_string = "alloc page array";
+		goto err_alloc_pages_failed;
+	}
+	proc->buffer_size = vma->vm_end - vma->vm_start;
+
+	vma->vm_ops = &binder_vm_ops;
+	vma->vm_private_data = proc;
+
+	if (binder_update_page_range(proc, 1, proc->buffer, proc->buffer + PAGE_SIZE, vma)) {
+		ret = -ENOMEM;
+		failure_string = "alloc small buf";
+		goto err_alloc_small_buf_failed;
+	}
+	buffer = proc->buffer;
+	INIT_LIST_HEAD(&proc->buffers);
+	list_add(&buffer->entry, &proc->buffers);
+	buffer->free = 1;
+	binder_insert_free_buffer(proc, buffer);
+	proc->free_async_space = proc->buffer_size / 2;
+	barrier();
+	proc->files = get_files_struct(current);
+	proc->vma = vma;
+
+	/*printk(KERN_INFO "binder_mmap: %d %lx-%lx maps %p\n",
+		 proc->pid, vma->vm_start, vma->vm_end, proc->buffer);*/
+	return 0;
+
+err_alloc_small_buf_failed:
+	kfree(proc->pages);
+	proc->pages = NULL;
+err_alloc_pages_failed:
+	vfree(proc->buffer);
+	proc->buffer = NULL;
+err_get_vm_area_failed:
+err_already_mapped:
+err_bad_arg:
+	printk(KERN_ERR "binder_mmap: %d %lx-%lx %s failed %d\n",
+	       proc->pid, vma->vm_start, vma->vm_end, failure_string, ret);
+	return ret;
+}
+
+static int binder_open(struct inode *nodp, struct file *filp)
+{
+	struct binder_proc *proc;
+
+	binder_debug(BINDER_DEBUG_OPEN_CLOSE, "binder_open: %d:%d\n",
+		     current->group_leader->pid, current->pid);
+
+	proc = kzalloc(sizeof(*proc), GFP_KERNEL);
+	if (proc == NULL)
+		return -ENOMEM;
+	get_task_struct(current);
+	proc->tsk = current;
+	INIT_LIST_HEAD(&proc->todo);
+	init_waitqueue_head(&proc->wait);
+	proc->default_priority = task_nice(current);
+	mutex_lock(&binder_lock);
+	binder_stats_created(BINDER_STAT_PROC);
+	hlist_add_head(&proc->proc_node, &binder_procs);
+	proc->pid = current->group_leader->pid;
+	INIT_LIST_HEAD(&proc->delivered_death);
+	filp->private_data = proc;
+	mutex_unlock(&binder_lock);
+
+	if (binder_debugfs_dir_entry_proc) {
+		char strbuf[11];
+		snprintf(strbuf, sizeof(strbuf), "%u", proc->pid);
+		proc->debugfs_entry = debugfs_create_file(strbuf, S_IRUGO,
+			binder_debugfs_dir_entry_proc, proc, &binder_proc_fops);
+	}
+
+	return 0;
+}
+
+static int binder_flush(struct file *filp, fl_owner_t id)
+{
+	struct binder_proc *proc = filp->private_data;
+
+	binder_defer_work(proc, BINDER_DEFERRED_FLUSH);
+
+	return 0;
+}
+
+static void binder_deferred_flush(struct binder_proc *proc)
+{
+	struct rb_node *n;
+	int wake_count = 0;
+	for (n = rb_first(&proc->threads); n != NULL; n = rb_next(n)) {
+		struct binder_thread *thread = rb_entry(n, struct binder_thread, rb_node);
+		thread->looper |= BINDER_LOOPER_STATE_NEED_RETURN;
+		if (thread->looper & BINDER_LOOPER_STATE_WAITING) {
+			wake_up_interruptible(&thread->wait);
+			wake_count++;
+		}
+	}
+	wake_up_interruptible_all(&proc->wait);
+
+	binder_debug(BINDER_DEBUG_OPEN_CLOSE,
+		     "binder_flush: %d woke %d threads\n", proc->pid,
+		     wake_count);
+}
+
+static int binder_release(struct inode *nodp, struct file *filp)
+{
+	struct binder_proc *proc = filp->private_data;
+	debugfs_remove(proc->debugfs_entry);
+	binder_defer_work(proc, BINDER_DEFERRED_RELEASE);
+
+	return 0;
+}
+
+static void binder_deferred_release(struct binder_proc *proc)
+{
+	struct hlist_node *pos;
+	struct binder_transaction *t;
+	struct rb_node *n;
+	int threads, nodes, incoming_refs, outgoing_refs, buffers, active_transactions, page_count;
+
+	BUG_ON(proc->vma);
+	BUG_ON(proc->files);
+
+	hlist_del(&proc->proc_node);
+	if (binder_context_mgr_node && binder_context_mgr_node->proc == proc) {
+		binder_debug(BINDER_DEBUG_DEAD_BINDER,
+			     "binder_release: %d context_mgr_node gone\n",
+			     proc->pid);
+		binder_context_mgr_node = NULL;
+	}
+
+	threads = 0;
+	active_transactions = 0;
+	while ((n = rb_first(&proc->threads))) {
+		struct binder_thread *thread = rb_entry(n, struct binder_thread, rb_node);
+		threads++;
+		active_transactions += binder_free_thread(proc, thread);
+	}
+	nodes = 0;
+	incoming_refs = 0;
+	while ((n = rb_first(&proc->nodes))) {
+		struct binder_node *node = rb_entry(n, struct binder_node, rb_node);
+
+		nodes++;
+		rb_erase(&node->rb_node, &proc->nodes);
+		list_del_init(&node->work.entry);
+		if (hlist_empty(&node->refs)) {
+			kfree(node);
+			binder_stats_deleted(BINDER_STAT_NODE);
+		} else {
+			struct binder_ref *ref;
+			int death = 0;
+
+			node->proc = NULL;
+			node->local_strong_refs = 0;
+			node->local_weak_refs = 0;
+			hlist_add_head(&node->dead_node, &binder_dead_nodes);
+
+			hlist_for_each_entry(ref, pos, &node->refs, node_entry) {
+				incoming_refs++;
+				if (ref->death) {
+					death++;
+					if (list_empty(&ref->death->work.entry)) {
+						ref->death->work.type = BINDER_WORK_DEAD_BINDER;
+						list_add_tail(&ref->death->work.entry, &ref->proc->todo);
+						wake_up_interruptible(&ref->proc->wait);
+					} else
+						BUG();
+				}
+			}
+			binder_debug(BINDER_DEBUG_DEAD_BINDER,
+				     "binder: node %d now dead, "
+				     "refs %d, death %d\n", node->debug_id,
+				     incoming_refs, death);
+		}
+	}
+	outgoing_refs = 0;
+	while ((n = rb_first(&proc->refs_by_desc))) {
+		struct binder_ref *ref = rb_entry(n, struct binder_ref,
+						  rb_node_desc);
+		outgoing_refs++;
+		binder_delete_ref(ref);
+	}
+	binder_release_work(&proc->todo);
+	buffers = 0;
+
+	while ((n = rb_first(&proc->allocated_buffers))) {
+		struct binder_buffer *buffer = rb_entry(n, struct binder_buffer,
+							rb_node);
+		t = buffer->transaction;
+		if (t) {
+			t->buffer = NULL;
+			buffer->transaction = NULL;
+			printk(KERN_ERR "binder: release proc %d, "
+			       "transaction %d, not freed\n",
+			       proc->pid, t->debug_id);
+			/*BUG();*/
+		}
+		binder_free_buf(proc, buffer);
+		buffers++;
+	}
+
+	binder_stats_deleted(BINDER_STAT_PROC);
+
+	page_count = 0;
+	if (proc->pages) {
+		int i;
+		for (i = 0; i < proc->buffer_size / PAGE_SIZE; i++) {
+			if (proc->pages[i]) {
+				void *page_addr = proc->buffer + i * PAGE_SIZE;
+				binder_debug(BINDER_DEBUG_BUFFER_ALLOC,
+					     "binder_release: %d: "
+					     "page %d at %p not freed\n",
+					     proc->pid, i,
+					     page_addr);
+				unmap_kernel_range((unsigned long)page_addr,
+					PAGE_SIZE);
+				__free_page(proc->pages[i]);
+				page_count++;
+			}
+		}
+		kfree(proc->pages);
+		vfree(proc->buffer);
+	}
+
+	put_task_struct(proc->tsk);
+
+	binder_debug(BINDER_DEBUG_OPEN_CLOSE,
+		     "binder_release: %d threads %d, nodes %d (ref %d), "
+		     "refs %d, active transactions %d, buffers %d, "
+		     "pages %d\n",
+		     proc->pid, threads, nodes, incoming_refs, outgoing_refs,
+		     active_transactions, buffers, page_count);
+
+	kfree(proc);
+}
+
+static void binder_deferred_func(struct work_struct *work)
+{
+	struct binder_proc *proc;
+	struct files_struct *files;
+
+	int defer;
+	do {
+		mutex_lock(&binder_lock);
+		mutex_lock(&binder_deferred_lock);
+		if (!hlist_empty(&binder_deferred_list)) {
+			proc = hlist_entry(binder_deferred_list.first,
+					struct binder_proc, deferred_work_node);
+			hlist_del_init(&proc->deferred_work_node);
+			defer = proc->deferred_work;
+			proc->deferred_work = 0;
+		} else {
+			proc = NULL;
+			defer = 0;
+		}
+		mutex_unlock(&binder_deferred_lock);
+
+		files = NULL;
+		if (defer & BINDER_DEFERRED_PUT_FILES) {
+			files = proc->files;
+			if (files)
+				proc->files = NULL;
+		}
+
+		if (defer & BINDER_DEFERRED_FLUSH)
+			binder_deferred_flush(proc);
+
+		if (defer & BINDER_DEFERRED_RELEASE)
+			binder_deferred_release(proc); /* frees proc */
+
+		mutex_unlock(&binder_lock);
+		if (files)
+			put_files_struct(files);
+	} while (proc);
+}
+static DECLARE_WORK(binder_deferred_work, binder_deferred_func);
+
+static void
+binder_defer_work(struct binder_proc *proc, enum binder_deferred_state defer)
+{
+	mutex_lock(&binder_deferred_lock);
+	proc->deferred_work |= defer;
+	if (hlist_unhashed(&proc->deferred_work_node)) {
+		hlist_add_head(&proc->deferred_work_node,
+				&binder_deferred_list);
+		queue_work(binder_deferred_workqueue, &binder_deferred_work);
+	}
+	mutex_unlock(&binder_deferred_lock);
+}
+
+static void print_binder_transaction(struct seq_file *m, const char *prefix,
+				     struct binder_transaction *t)
+{
+	seq_printf(m,
+		   "%s %d: %p from %d:%d to %d:%d code %x flags %x pri %ld r%d",
+		   prefix, t->debug_id, t,
+		   t->from ? t->from->proc->pid : 0,
+		   t->from ? t->from->pid : 0,
+		   t->to_proc ? t->to_proc->pid : 0,
+		   t->to_thread ? t->to_thread->pid : 0,
+		   t->code, t->flags, t->priority, t->need_reply);
+	if (t->buffer == NULL) {
+		seq_puts(m, " buffer free\n");
+		return;
+	}
+	if (t->buffer->target_node)
+		seq_printf(m, " node %d",
+			   t->buffer->target_node->debug_id);
+	seq_printf(m, " size %zd:%zd data %p\n",
+		   t->buffer->data_size, t->buffer->offsets_size,
+		   t->buffer->data);
+}
+
+static void print_binder_buffer(struct seq_file *m, const char *prefix,
+				struct binder_buffer *buffer)
+{
+	seq_printf(m, "%s %d: %p size %zd:%zd %s\n",
+		   prefix, buffer->debug_id, buffer->data,
+		   buffer->data_size, buffer->offsets_size,
+		   buffer->transaction ? "active" : "delivered");
+}
+
+static void print_binder_work(struct seq_file *m, const char *prefix,
+			      const char *transaction_prefix,
+			      struct binder_work *w)
+{
+	struct binder_node *node;
+	struct binder_transaction *t;
+
+	switch (w->type) {
+	case BINDER_WORK_TRANSACTION:
+		t = container_of(w, struct binder_transaction, work);
+		print_binder_transaction(m, transaction_prefix, t);
+		break;
+	case BINDER_WORK_TRANSACTION_COMPLETE:
+		seq_printf(m, "%stransaction complete\n", prefix);
+		break;
+	case BINDER_WORK_NODE:
+		node = container_of(w, struct binder_node, work);
+		seq_printf(m, "%snode work %d: u%p c%p\n",
+			   prefix, node->debug_id, node->ptr, node->cookie);
+		break;
+	case BINDER_WORK_DEAD_BINDER:
+		seq_printf(m, "%shas dead binder\n", prefix);
+		break;
+	case BINDER_WORK_DEAD_BINDER_AND_CLEAR:
+		seq_printf(m, "%shas cleared dead binder\n", prefix);
+		break;
+	case BINDER_WORK_CLEAR_DEATH_NOTIFICATION:
+		seq_printf(m, "%shas cleared death notification\n", prefix);
+		break;
+	default:
+		seq_printf(m, "%sunknown work: type %d\n", prefix, w->type);
+		break;
+	}
+}
+
+static void print_binder_thread(struct seq_file *m,
+				struct binder_thread *thread,
+				int print_always)
+{
+	struct binder_transaction *t;
+	struct binder_work *w;
+	size_t start_pos = m->count;
+	size_t header_pos;
+
+	seq_printf(m, "  thread %d: l %02x\n", thread->pid, thread->looper);
+	header_pos = m->count;
+	t = thread->transaction_stack;
+	while (t) {
+		if (t->from == thread) {
+			print_binder_transaction(m,
+						 "    outgoing transaction", t);
+			t = t->from_parent;
+		} else if (t->to_thread == thread) {
+			print_binder_transaction(m,
+						 "    incoming transaction", t);
+			t = t->to_parent;
+		} else {
+			print_binder_transaction(m, "    bad transaction", t);
+			t = NULL;
+		}
+	}
+	list_for_each_entry(w, &thread->todo, entry) {
+		print_binder_work(m, "    ", "    pending transaction", w);
+	}
+	if (!print_always && m->count == header_pos)
+		m->count = start_pos;
+}
+
+static void print_binder_node(struct seq_file *m, struct binder_node *node)
+{
+	struct binder_ref *ref;
+	struct hlist_node *pos;
+	struct binder_work *w;
+	int count;
+
+	count = 0;
+	hlist_for_each_entry(ref, pos, &node->refs, node_entry)
+		count++;
+
+	seq_printf(m, "  node %d: u%p c%p hs %d hw %d ls %d lw %d is %d iw %d",
+		   node->debug_id, node->ptr, node->cookie,
+		   node->has_strong_ref, node->has_weak_ref,
+		   node->local_strong_refs, node->local_weak_refs,
+		   node->internal_strong_refs, count);
+	if (count) {
+		seq_puts(m, " proc");
+		hlist_for_each_entry(ref, pos, &node->refs, node_entry)
+			seq_printf(m, " %d", ref->proc->pid);
+	}
+	seq_puts(m, "\n");
+	list_for_each_entry(w, &node->async_todo, entry)
+		print_binder_work(m, "    ",
+				  "    pending async transaction", w);
+}
+
+static void print_binder_ref(struct seq_file *m, struct binder_ref *ref)
+{
+	seq_printf(m, "  ref %d: desc %d %snode %d s %d w %d d %p\n",
+		   ref->debug_id, ref->desc, ref->node->proc ? "" : "dead ",
+		   ref->node->debug_id, ref->strong, ref->weak, ref->death);
+}
+
+static void print_binder_proc(struct seq_file *m,
+			      struct binder_proc *proc, int print_all)
+{
+	struct binder_work *w;
+	struct rb_node *n;
+	size_t start_pos = m->count;
+	size_t header_pos;
+
+	seq_printf(m, "proc %d\n", proc->pid);
+	header_pos = m->count;
+
+	for (n = rb_first(&proc->threads); n != NULL; n = rb_next(n))
+		print_binder_thread(m, rb_entry(n, struct binder_thread,
+						rb_node), print_all);
+	for (n = rb_first(&proc->nodes); n != NULL; n = rb_next(n)) {
+		struct binder_node *node = rb_entry(n, struct binder_node,
+						    rb_node);
+		if (print_all || node->has_async_transaction)
+			print_binder_node(m, node);
+	}
+	if (print_all) {
+		for (n = rb_first(&proc->refs_by_desc);
+		     n != NULL;
+		     n = rb_next(n))
+			print_binder_ref(m, rb_entry(n, struct binder_ref,
+						     rb_node_desc));
+	}
+	for (n = rb_first(&proc->allocated_buffers); n != NULL; n = rb_next(n))
+		print_binder_buffer(m, "  buffer",
+				    rb_entry(n, struct binder_buffer, rb_node));
+	list_for_each_entry(w, &proc->todo, entry)
+		print_binder_work(m, "  ", "  pending transaction", w);
+	list_for_each_entry(w, &proc->delivered_death, entry) {
+		seq_puts(m, "  has delivered dead binder\n");
+		break;
+	}
+	if (!print_all && m->count == header_pos)
+		m->count = start_pos;
+}
+
+static const char *binder_return_strings[] = {
+	"BR_ERROR",
+	"BR_OK",
+	"BR_TRANSACTION",
+	"BR_REPLY",
+	"BR_ACQUIRE_RESULT",
+	"BR_DEAD_REPLY",
+	"BR_TRANSACTION_COMPLETE",
+	"BR_INCREFS",
+	"BR_ACQUIRE",
+	"BR_RELEASE",
+	"BR_DECREFS",
+	"BR_ATTEMPT_ACQUIRE",
+	"BR_NOOP",
+	"BR_SPAWN_LOOPER",
+	"BR_FINISHED",
+	"BR_DEAD_BINDER",
+	"BR_CLEAR_DEATH_NOTIFICATION_DONE",
+	"BR_FAILED_REPLY"
+};
+
+static const char *binder_command_strings[] = {
+	"BC_TRANSACTION",
+	"BC_REPLY",
+	"BC_ACQUIRE_RESULT",
+	"BC_FREE_BUFFER",
+	"BC_INCREFS",
+	"BC_ACQUIRE",
+	"BC_RELEASE",
+	"BC_DECREFS",
+	"BC_INCREFS_DONE",
+	"BC_ACQUIRE_DONE",
+	"BC_ATTEMPT_ACQUIRE",
+	"BC_REGISTER_LOOPER",
+	"BC_ENTER_LOOPER",
+	"BC_EXIT_LOOPER",
+	"BC_REQUEST_DEATH_NOTIFICATION",
+	"BC_CLEAR_DEATH_NOTIFICATION",
+	"BC_DEAD_BINDER_DONE"
+};
+
+static const char *binder_objstat_strings[] = {
+	"proc",
+	"thread",
+	"node",
+	"ref",
+	"death",
+	"transaction",
+	"transaction_complete"
+};
+
+static void print_binder_stats(struct seq_file *m, const char *prefix,
+			       struct binder_stats *stats)
+{
+	int i;
+
+	BUILD_BUG_ON(ARRAY_SIZE(stats->bc) !=
+		     ARRAY_SIZE(binder_command_strings));
+	for (i = 0; i < ARRAY_SIZE(stats->bc); i++) {
+		if (stats->bc[i])
+			seq_printf(m, "%s%s: %d\n", prefix,
+				   binder_command_strings[i], stats->bc[i]);
+	}
+
+	BUILD_BUG_ON(ARRAY_SIZE(stats->br) !=
+		     ARRAY_SIZE(binder_return_strings));
+	for (i = 0; i < ARRAY_SIZE(stats->br); i++) {
+		if (stats->br[i])
+			seq_printf(m, "%s%s: %d\n", prefix,
+				   binder_return_strings[i], stats->br[i]);
+	}
+
+	BUILD_BUG_ON(ARRAY_SIZE(stats->obj_created) !=
+		     ARRAY_SIZE(binder_objstat_strings));
+	BUILD_BUG_ON(ARRAY_SIZE(stats->obj_created) !=
+		     ARRAY_SIZE(stats->obj_deleted));
+	for (i = 0; i < ARRAY_SIZE(stats->obj_created); i++) {
+		if (stats->obj_created[i] || stats->obj_deleted[i])
+			seq_printf(m, "%s%s: active %d total %d\n", prefix,
+				binder_objstat_strings[i],
+				stats->obj_created[i] - stats->obj_deleted[i],
+				stats->obj_created[i]);
+	}
+}
+
+static void print_binder_proc_stats(struct seq_file *m,
+				    struct binder_proc *proc)
+{
+	struct binder_work *w;
+	struct rb_node *n;
+	int count, strong, weak;
+
+	seq_printf(m, "proc %d\n", proc->pid);
+	count = 0;
+	for (n = rb_first(&proc->threads); n != NULL; n = rb_next(n))
+		count++;
+	seq_printf(m, "  threads: %d\n", count);
+	seq_printf(m, "  requested threads: %d+%d/%d\n"
+			"  ready threads %d\n"
+			"  free async space %zd\n", proc->requested_threads,
+			proc->requested_threads_started, proc->max_threads,
+			proc->ready_threads, proc->free_async_space);
+	count = 0;
+	for (n = rb_first(&proc->nodes); n != NULL; n = rb_next(n))
+		count++;
+	seq_printf(m, "  nodes: %d\n", count);
+	count = 0;
+	strong = 0;
+	weak = 0;
+	for (n = rb_first(&proc->refs_by_desc); n != NULL; n = rb_next(n)) {
+		struct binder_ref *ref = rb_entry(n, struct binder_ref,
+						  rb_node_desc);
+		count++;
+		strong += ref->strong;
+		weak += ref->weak;
+	}
+	seq_printf(m, "  refs: %d s %d w %d\n", count, strong, weak);
+
+	count = 0;
+	for (n = rb_first(&proc->allocated_buffers); n != NULL; n = rb_next(n))
+		count++;
+	seq_printf(m, "  buffers: %d\n", count);
+
+	count = 0;
+	list_for_each_entry(w, &proc->todo, entry) {
+		switch (w->type) {
+		case BINDER_WORK_TRANSACTION:
+			count++;
+			break;
+		default:
+			break;
+		}
+	}
+	seq_printf(m, "  pending transactions: %d\n", count);
+
+	print_binder_stats(m, "  ", &proc->stats);
+}
+
+
+static int binder_state_show(struct seq_file *m, void *unused)
+{
+	struct binder_proc *proc;
+	struct hlist_node *pos;
+	struct binder_node *node;
+	int do_lock = !binder_debug_no_lock;
+
+	if (do_lock)
+		mutex_lock(&binder_lock);
+
+	seq_puts(m, "binder state:\n");
+
+	if (!hlist_empty(&binder_dead_nodes))
+		seq_puts(m, "dead nodes:\n");
+	hlist_for_each_entry(node, pos, &binder_dead_nodes, dead_node)
+		print_binder_node(m, node);
+
+	hlist_for_each_entry(proc, pos, &binder_procs, proc_node)
+		print_binder_proc(m, proc, 1);
+	if (do_lock)
+		mutex_unlock(&binder_lock);
+	return 0;
+}
+
+static int binder_stats_show(struct seq_file *m, void *unused)
+{
+	struct binder_proc *proc;
+	struct hlist_node *pos;
+	int do_lock = !binder_debug_no_lock;
+
+	if (do_lock)
+		mutex_lock(&binder_lock);
+
+	seq_puts(m, "binder stats:\n");
+
+	print_binder_stats(m, "", &binder_stats);
+
+	hlist_for_each_entry(proc, pos, &binder_procs, proc_node)
+		print_binder_proc_stats(m, proc);
+	if (do_lock)
+		mutex_unlock(&binder_lock);
+	return 0;
+}
+
+static int binder_transactions_show(struct seq_file *m, void *unused)
+{
+	struct binder_proc *proc;
+	struct hlist_node *pos;
+	int do_lock = !binder_debug_no_lock;
+
+	if (do_lock)
+		mutex_lock(&binder_lock);
+
+	seq_puts(m, "binder transactions:\n");
+	hlist_for_each_entry(proc, pos, &binder_procs, proc_node)
+		print_binder_proc(m, proc, 0);
+	if (do_lock)
+		mutex_unlock(&binder_lock);
+	return 0;
+}
+
+static int binder_proc_show(struct seq_file *m, void *unused)
+{
+	struct binder_proc *proc = m->private;
+	int do_lock = !binder_debug_no_lock;
+
+	if (do_lock)
+		mutex_lock(&binder_lock);
+	seq_puts(m, "binder proc state:\n");
+	print_binder_proc(m, proc, 1);
+	if (do_lock)
+		mutex_unlock(&binder_lock);
+	return 0;
+}
+
+static void print_binder_transaction_log_entry(struct seq_file *m,
+					struct binder_transaction_log_entry *e)
+{
+	seq_printf(m,
+		   "%d: %s from %d:%d to %d:%d node %d handle %d size %d:%d\n",
+		   e->debug_id, (e->call_type == 2) ? "reply" :
+		   ((e->call_type == 1) ? "async" : "call "), e->from_proc,
+		   e->from_thread, e->to_proc, e->to_thread, e->to_node,
+		   e->target_handle, e->data_size, e->offsets_size);
+}
+
+static int binder_transaction_log_show(struct seq_file *m, void *unused)
+{
+	struct binder_transaction_log *log = m->private;
+	int i;
+
+	if (log->full) {
+		for (i = log->next; i < ARRAY_SIZE(log->entry); i++)
+			print_binder_transaction_log_entry(m, &log->entry[i]);
+	}
+	for (i = 0; i < log->next; i++)
+		print_binder_transaction_log_entry(m, &log->entry[i]);
+	return 0;
+}
+
+static const struct file_operations binder_fops = {
+	.owner = THIS_MODULE,
+	.poll = binder_poll,
+	.unlocked_ioctl = binder_ioctl,
+	.mmap = binder_mmap,
+	.open = binder_open,
+	.flush = binder_flush,
+	.release = binder_release,
+};
+
+static struct miscdevice binder_miscdev = {
+	.minor = MISC_DYNAMIC_MINOR,
+	.name = "binder",
+	.fops = &binder_fops
+};
+
+BINDER_DEBUG_ENTRY(state);
+BINDER_DEBUG_ENTRY(stats);
+BINDER_DEBUG_ENTRY(transactions);
+BINDER_DEBUG_ENTRY(transaction_log);
+
+static int __init binder_init(void)
+{
+	int ret;
+
+	binder_deferred_workqueue = create_singlethread_workqueue("binder");
+	if (!binder_deferred_workqueue)
+		return -ENOMEM;
+
+	binder_debugfs_dir_entry_root = debugfs_create_dir("binder", NULL);
+	if (binder_debugfs_dir_entry_root)
+		binder_debugfs_dir_entry_proc = debugfs_create_dir("proc",
+						 binder_debugfs_dir_entry_root);
+	ret = misc_register(&binder_miscdev);
+	if (binder_debugfs_dir_entry_root) {
+		debugfs_create_file("state",
+				    S_IRUGO,
+				    binder_debugfs_dir_entry_root,
+				    NULL,
+				    &binder_state_fops);
+		debugfs_create_file("stats",
+				    S_IRUGO,
+				    binder_debugfs_dir_entry_root,
+				    NULL,
+				    &binder_stats_fops);
+		debugfs_create_file("transactions",
+				    S_IRUGO,
+				    binder_debugfs_dir_entry_root,
+				    NULL,
+				    &binder_transactions_fops);
+		debugfs_create_file("transaction_log",
+				    S_IRUGO,
+				    binder_debugfs_dir_entry_root,
+				    &binder_transaction_log,
+				    &binder_transaction_log_fops);
+		debugfs_create_file("failed_transaction_log",
+				    S_IRUGO,
+				    binder_debugfs_dir_entry_root,
+				    &binder_transaction_log_failed,
+				    &binder_transaction_log_fops);
+	}
+	return ret;
+}
+
+device_initcall(binder_init);
+
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/android/binder.h b/drivers/staging/android/binder.h
new file mode 100644
index 000000000000..25ab6f2759e9
--- /dev/null
+++ b/drivers/staging/android/binder.h
@@ -0,0 +1,330 @@
+/*
+ * Copyright (C) 2008 Google, Inc.
+ *
+ * Based on, but no longer compatible with, the original
+ * OpenBinder.org binder driver interface, which is:
+ *
+ * Copyright (c) 2005 Palmsource, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef _LINUX_BINDER_H
+#define _LINUX_BINDER_H
+
+#include <linux/ioctl.h>
+
+#define B_PACK_CHARS(c1, c2, c3, c4) \
+	((((c1)<<24)) | (((c2)<<16)) | (((c3)<<8)) | (c4))
+#define B_TYPE_LARGE 0x85
+
+enum {
+	BINDER_TYPE_BINDER	= B_PACK_CHARS('s', 'b', '*', B_TYPE_LARGE),
+	BINDER_TYPE_WEAK_BINDER	= B_PACK_CHARS('w', 'b', '*', B_TYPE_LARGE),
+	BINDER_TYPE_HANDLE	= B_PACK_CHARS('s', 'h', '*', B_TYPE_LARGE),
+	BINDER_TYPE_WEAK_HANDLE	= B_PACK_CHARS('w', 'h', '*', B_TYPE_LARGE),
+	BINDER_TYPE_FD		= B_PACK_CHARS('f', 'd', '*', B_TYPE_LARGE),
+};
+
+enum {
+	FLAT_BINDER_FLAG_PRIORITY_MASK = 0xff,
+	FLAT_BINDER_FLAG_ACCEPTS_FDS = 0x100,
+};
+
+/*
+ * This is the flattened representation of a Binder object for transfer
+ * between processes.  The 'offsets' supplied as part of a binder transaction
+ * contains offsets into the data where these structures occur.  The Binder
+ * driver takes care of re-writing the structure type and data as it moves
+ * between processes.
+ */
+struct flat_binder_object {
+	/* 8 bytes for large_flat_header. */
+	unsigned long		type;
+	unsigned long		flags;
+
+	/* 8 bytes of data. */
+	union {
+		void		*binder;	/* local object */
+		signed long	handle;		/* remote object */
+	};
+
+	/* extra data associated with local object */
+	void			*cookie;
+};
+
+/*
+ * On 64-bit platforms where user code may run in 32-bits the driver must
+ * translate the buffer (and local binder) addresses apropriately.
+ */
+
+struct binder_write_read {
+	signed long	write_size;	/* bytes to write */
+	signed long	write_consumed;	/* bytes consumed by driver */
+	unsigned long	write_buffer;
+	signed long	read_size;	/* bytes to read */
+	signed long	read_consumed;	/* bytes consumed by driver */
+	unsigned long	read_buffer;
+};
+
+/* Use with BINDER_VERSION, driver fills in fields. */
+struct binder_version {
+	/* driver protocol version -- increment with incompatible change */
+	signed long	protocol_version;
+};
+
+/* This is the current protocol version. */
+#define BINDER_CURRENT_PROTOCOL_VERSION 7
+
+#define BINDER_WRITE_READ		_IOWR('b', 1, struct binder_write_read)
+#define	BINDER_SET_IDLE_TIMEOUT		_IOW('b', 3, int64_t)
+#define	BINDER_SET_MAX_THREADS		_IOW('b', 5, size_t)
+#define	BINDER_SET_IDLE_PRIORITY	_IOW('b', 6, int)
+#define	BINDER_SET_CONTEXT_MGR		_IOW('b', 7, int)
+#define	BINDER_THREAD_EXIT		_IOW('b', 8, int)
+#define BINDER_VERSION			_IOWR('b', 9, struct binder_version)
+
+/*
+ * NOTE: Two special error codes you should check for when calling
+ * in to the driver are:
+ *
+ * EINTR -- The operation has been interupted.  This should be
+ * handled by retrying the ioctl() until a different error code
+ * is returned.
+ *
+ * ECONNREFUSED -- The driver is no longer accepting operations
+ * from your process.  That is, the process is being destroyed.
+ * You should handle this by exiting from your process.  Note
+ * that once this error code is returned, all further calls to
+ * the driver from any thread will return this same code.
+ */
+
+enum transaction_flags {
+	TF_ONE_WAY	= 0x01,	/* this is a one-way call: async, no return */
+	TF_ROOT_OBJECT	= 0x04,	/* contents are the component's root object */
+	TF_STATUS_CODE	= 0x08,	/* contents are a 32-bit status code */
+	TF_ACCEPT_FDS	= 0x10,	/* allow replies with file descriptors */
+};
+
+struct binder_transaction_data {
+	/* The first two are only used for bcTRANSACTION and brTRANSACTION,
+	 * identifying the target and contents of the transaction.
+	 */
+	union {
+		size_t	handle;	/* target descriptor of command transaction */
+		void	*ptr;	/* target descriptor of return transaction */
+	} target;
+	void		*cookie;	/* target object cookie */
+	unsigned int	code;		/* transaction command */
+
+	/* General information about the transaction. */
+	unsigned int	flags;
+	pid_t		sender_pid;
+	uid_t		sender_euid;
+	size_t		data_size;	/* number of bytes of data */
+	size_t		offsets_size;	/* number of bytes of offsets */
+
+	/* If this transaction is inline, the data immediately
+	 * follows here; otherwise, it ends with a pointer to
+	 * the data buffer.
+	 */
+	union {
+		struct {
+			/* transaction data */
+			const void	*buffer;
+			/* offsets from buffer to flat_binder_object structs */
+			const void	*offsets;
+		} ptr;
+		uint8_t	buf[8];
+	} data;
+};
+
+struct binder_ptr_cookie {
+	void *ptr;
+	void *cookie;
+};
+
+struct binder_pri_desc {
+	int priority;
+	int desc;
+};
+
+struct binder_pri_ptr_cookie {
+	int priority;
+	void *ptr;
+	void *cookie;
+};
+
+enum BinderDriverReturnProtocol {
+	BR_ERROR = _IOR('r', 0, int),
+	/*
+	 * int: error code
+	 */
+
+	BR_OK = _IO('r', 1),
+	/* No parameters! */
+
+	BR_TRANSACTION = _IOR('r', 2, struct binder_transaction_data),
+	BR_REPLY = _IOR('r', 3, struct binder_transaction_data),
+	/*
+	 * binder_transaction_data: the received command.
+	 */
+
+	BR_ACQUIRE_RESULT = _IOR('r', 4, int),
+	/*
+	 * not currently supported
+	 * int: 0 if the last bcATTEMPT_ACQUIRE was not successful.
+	 * Else the remote object has acquired a primary reference.
+	 */
+
+	BR_DEAD_REPLY = _IO('r', 5),
+	/*
+	 * The target of the last transaction (either a bcTRANSACTION or
+	 * a bcATTEMPT_ACQUIRE) is no longer with us.  No parameters.
+	 */
+
+	BR_TRANSACTION_COMPLETE = _IO('r', 6),
+	/*
+	 * No parameters... always refers to the last transaction requested
+	 * (including replies).  Note that this will be sent even for
+	 * asynchronous transactions.
+	 */
+
+	BR_INCREFS = _IOR('r', 7, struct binder_ptr_cookie),
+	BR_ACQUIRE = _IOR('r', 8, struct binder_ptr_cookie),
+	BR_RELEASE = _IOR('r', 9, struct binder_ptr_cookie),
+	BR_DECREFS = _IOR('r', 10, struct binder_ptr_cookie),
+	/*
+	 * void *:	ptr to binder
+	 * void *: cookie for binder
+	 */
+
+	BR_ATTEMPT_ACQUIRE = _IOR('r', 11, struct binder_pri_ptr_cookie),
+	/*
+	 * not currently supported
+	 * int:	priority
+	 * void *: ptr to binder
+	 * void *: cookie for binder
+	 */
+
+	BR_NOOP = _IO('r', 12),
+	/*
+	 * No parameters.  Do nothing and examine the next command.  It exists
+	 * primarily so that we can replace it with a BR_SPAWN_LOOPER command.
+	 */
+
+	BR_SPAWN_LOOPER = _IO('r', 13),
+	/*
+	 * No parameters.  The driver has determined that a process has no
+	 * threads waiting to service incomming transactions.  When a process
+	 * receives this command, it must spawn a new service thread and
+	 * register it via bcENTER_LOOPER.
+	 */
+
+	BR_FINISHED = _IO('r', 14),
+	/*
+	 * not currently supported
+	 * stop threadpool thread
+	 */
+
+	BR_DEAD_BINDER = _IOR('r', 15, void *),
+	/*
+	 * void *: cookie
+	 */
+	BR_CLEAR_DEATH_NOTIFICATION_DONE = _IOR('r', 16, void *),
+	/*
+	 * void *: cookie
+	 */
+
+	BR_FAILED_REPLY = _IO('r', 17),
+	/*
+	 * The the last transaction (either a bcTRANSACTION or
+	 * a bcATTEMPT_ACQUIRE) failed (e.g. out of memory).  No parameters.
+	 */
+};
+
+enum BinderDriverCommandProtocol {
+	BC_TRANSACTION = _IOW('c', 0, struct binder_transaction_data),
+	BC_REPLY = _IOW('c', 1, struct binder_transaction_data),
+	/*
+	 * binder_transaction_data: the sent command.
+	 */
+
+	BC_ACQUIRE_RESULT = _IOW('c', 2, int),
+	/*
+	 * not currently supported
+	 * int:  0 if the last BR_ATTEMPT_ACQUIRE was not successful.
+	 * Else you have acquired a primary reference on the object.
+	 */
+
+	BC_FREE_BUFFER = _IOW('c', 3, int),
+	/*
+	 * void *: ptr to transaction data received on a read
+	 */
+
+	BC_INCREFS = _IOW('c', 4, int),
+	BC_ACQUIRE = _IOW('c', 5, int),
+	BC_RELEASE = _IOW('c', 6, int),
+	BC_DECREFS = _IOW('c', 7, int),
+	/*
+	 * int:	descriptor
+	 */
+
+	BC_INCREFS_DONE = _IOW('c', 8, struct binder_ptr_cookie),
+	BC_ACQUIRE_DONE = _IOW('c', 9, struct binder_ptr_cookie),
+	/*
+	 * void *: ptr to binder
+	 * void *: cookie for binder
+	 */
+
+	BC_ATTEMPT_ACQUIRE = _IOW('c', 10, struct binder_pri_desc),
+	/*
+	 * not currently supported
+	 * int: priority
+	 * int: descriptor
+	 */
+
+	BC_REGISTER_LOOPER = _IO('c', 11),
+	/*
+	 * No parameters.
+	 * Register a spawned looper thread with the device.
+	 */
+
+	BC_ENTER_LOOPER = _IO('c', 12),
+	BC_EXIT_LOOPER = _IO('c', 13),
+	/*
+	 * No parameters.
+	 * These two commands are sent as an application-level thread
+	 * enters and exits the binder loop, respectively.  They are
+	 * used so the binder can have an accurate count of the number
+	 * of looping threads it has available.
+	 */
+
+	BC_REQUEST_DEATH_NOTIFICATION = _IOW('c', 14, struct binder_ptr_cookie),
+	/*
+	 * void *: ptr to binder
+	 * void *: cookie
+	 */
+
+	BC_CLEAR_DEATH_NOTIFICATION = _IOW('c', 15, struct binder_ptr_cookie),
+	/*
+	 * void *: ptr to binder
+	 * void *: cookie
+	 */
+
+	BC_DEAD_BINDER_DONE = _IOW('c', 16, void *),
+	/*
+	 * void *: cookie
+	 */
+};
+
+#endif /* _LINUX_BINDER_H */
+
diff --git a/drivers/staging/android/logger.c b/drivers/staging/android/logger.c
new file mode 100644
index 000000000000..ffc2d043dd8e
--- /dev/null
+++ b/drivers/staging/android/logger.c
@@ -0,0 +1,616 @@
+/*
+ * drivers/misc/logger.c
+ *
+ * A Logging Subsystem
+ *
+ * Copyright (C) 2007-2008 Google, Inc.
+ *
+ * Robert Love <rlove@google.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
+#include <linux/sched.h>
+#include <linux/module.h>
+#include <linux/fs.h>
+#include <linux/miscdevice.h>
+#include <linux/uaccess.h>
+#include <linux/poll.h>
+#include <linux/slab.h>
+#include <linux/time.h>
+#include "logger.h"
+
+#include <asm/ioctls.h>
+
+/*
+ * struct logger_log - represents a specific log, such as 'main' or 'radio'
+ *
+ * This structure lives from module insertion until module removal, so it does
+ * not need additional reference counting. The structure is protected by the
+ * mutex 'mutex'.
+ */
+struct logger_log {
+	unsigned char		*buffer;/* the ring buffer itself */
+	struct miscdevice	misc;	/* misc device representing the log */
+	wait_queue_head_t	wq;	/* wait queue for readers */
+	struct list_head	readers; /* this log's readers */
+	struct mutex		mutex;	/* mutex protecting buffer */
+	size_t			w_off;	/* current write head offset */
+	size_t			head;	/* new readers start here */
+	size_t			size;	/* size of the log */
+};
+
+/*
+ * struct logger_reader - a logging device open for reading
+ *
+ * This object lives from open to release, so we don't need additional
+ * reference counting. The structure is protected by log->mutex.
+ */
+struct logger_reader {
+	struct logger_log	*log;	/* associated log */
+	struct list_head	list;	/* entry in logger_log's list */
+	size_t			r_off;	/* current read head offset */
+};
+
+/* logger_offset - returns index 'n' into the log via (optimized) modulus */
+#define logger_offset(n)	((n) & (log->size - 1))
+
+/*
+ * file_get_log - Given a file structure, return the associated log
+ *
+ * This isn't aesthetic. We have several goals:
+ *
+ *	1) Need to quickly obtain the associated log during an I/O operation
+ *	2) Readers need to maintain state (logger_reader)
+ *	3) Writers need to be very fast (open() should be a near no-op)
+ *
+ * In the reader case, we can trivially go file->logger_reader->logger_log.
+ * For a writer, we don't want to maintain a logger_reader, so we just go
+ * file->logger_log. Thus what file->private_data points at depends on whether
+ * or not the file was opened for reading. This function hides that dirtiness.
+ */
+static inline struct logger_log *file_get_log(struct file *file)
+{
+	if (file->f_mode & FMODE_READ) {
+		struct logger_reader *reader = file->private_data;
+		return reader->log;
+	} else
+		return file->private_data;
+}
+
+/*
+ * get_entry_len - Grabs the length of the payload of the next entry starting
+ * from 'off'.
+ *
+ * Caller needs to hold log->mutex.
+ */
+static __u32 get_entry_len(struct logger_log *log, size_t off)
+{
+	__u16 val;
+
+	switch (log->size - off) {
+	case 1:
+		memcpy(&val, log->buffer + off, 1);
+		memcpy(((char *) &val) + 1, log->buffer, 1);
+		break;
+	default:
+		memcpy(&val, log->buffer + off, 2);
+	}
+
+	return sizeof(struct logger_entry) + val;
+}
+
+/*
+ * do_read_log_to_user - reads exactly 'count' bytes from 'log' into the
+ * user-space buffer 'buf'. Returns 'count' on success.
+ *
+ * Caller must hold log->mutex.
+ */
+static ssize_t do_read_log_to_user(struct logger_log *log,
+				   struct logger_reader *reader,
+				   char __user *buf,
+				   size_t count)
+{
+	size_t len;
+
+	/*
+	 * We read from the log in two disjoint operations. First, we read from
+	 * the current read head offset up to 'count' bytes or to the end of
+	 * the log, whichever comes first.
+	 */
+	len = min(count, log->size - reader->r_off);
+	if (copy_to_user(buf, log->buffer + reader->r_off, len))
+		return -EFAULT;
+
+	/*
+	 * Second, we read any remaining bytes, starting back at the head of
+	 * the log.
+	 */
+	if (count != len)
+		if (copy_to_user(buf + len, log->buffer, count - len))
+			return -EFAULT;
+
+	reader->r_off = logger_offset(reader->r_off + count);
+
+	return count;
+}
+
+/*
+ * logger_read - our log's read() method
+ *
+ * Behavior:
+ *
+ *	- O_NONBLOCK works
+ *	- If there are no log entries to read, blocks until log is written to
+ *	- Atomically reads exactly one log entry
+ *
+ * Optimal read size is LOGGER_ENTRY_MAX_LEN. Will set errno to EINVAL if read
+ * buffer is insufficient to hold next entry.
+ */
+static ssize_t logger_read(struct file *file, char __user *buf,
+			   size_t count, loff_t *pos)
+{
+	struct logger_reader *reader = file->private_data;
+	struct logger_log *log = reader->log;
+	ssize_t ret;
+	DEFINE_WAIT(wait);
+
+start:
+	while (1) {
+		prepare_to_wait(&log->wq, &wait, TASK_INTERRUPTIBLE);
+
+		mutex_lock(&log->mutex);
+		ret = (log->w_off == reader->r_off);
+		mutex_unlock(&log->mutex);
+		if (!ret)
+			break;
+
+		if (file->f_flags & O_NONBLOCK) {
+			ret = -EAGAIN;
+			break;
+		}
+
+		if (signal_pending(current)) {
+			ret = -EINTR;
+			break;
+		}
+
+		schedule();
+	}
+
+	finish_wait(&log->wq, &wait);
+	if (ret)
+		return ret;
+
+	mutex_lock(&log->mutex);
+
+	/* is there still something to read or did we race? */
+	if (unlikely(log->w_off == reader->r_off)) {
+		mutex_unlock(&log->mutex);
+		goto start;
+	}
+
+	/* get the size of the next entry */
+	ret = get_entry_len(log, reader->r_off);
+	if (count < ret) {
+		ret = -EINVAL;
+		goto out;
+	}
+
+	/* get exactly one entry from the log */
+	ret = do_read_log_to_user(log, reader, buf, ret);
+
+out:
+	mutex_unlock(&log->mutex);
+
+	return ret;
+}
+
+/*
+ * get_next_entry - return the offset of the first valid entry at least 'len'
+ * bytes after 'off'.
+ *
+ * Caller must hold log->mutex.
+ */
+static size_t get_next_entry(struct logger_log *log, size_t off, size_t len)
+{
+	size_t count = 0;
+
+	do {
+		size_t nr = get_entry_len(log, off);
+		off = logger_offset(off + nr);
+		count += nr;
+	} while (count < len);
+
+	return off;
+}
+
+/*
+ * clock_interval - is a < c < b in mod-space? Put another way, does the line
+ * from a to b cross c?
+ */
+static inline int clock_interval(size_t a, size_t b, size_t c)
+{
+	if (b < a) {
+		if (a < c || b >= c)
+			return 1;
+	} else {
+		if (a < c && b >= c)
+			return 1;
+	}
+
+	return 0;
+}
+
+/*
+ * fix_up_readers - walk the list of all readers and "fix up" any who were
+ * lapped by the writer; also do the same for the default "start head".
+ * We do this by "pulling forward" the readers and start head to the first
+ * entry after the new write head.
+ *
+ * The caller needs to hold log->mutex.
+ */
+static void fix_up_readers(struct logger_log *log, size_t len)
+{
+	size_t old = log->w_off;
+	size_t new = logger_offset(old + len);
+	struct logger_reader *reader;
+
+	if (clock_interval(old, new, log->head))
+		log->head = get_next_entry(log, log->head, len);
+
+	list_for_each_entry(reader, &log->readers, list)
+		if (clock_interval(old, new, reader->r_off))
+			reader->r_off = get_next_entry(log, reader->r_off, len);
+}
+
+/*
+ * do_write_log - writes 'len' bytes from 'buf' to 'log'
+ *
+ * The caller needs to hold log->mutex.
+ */
+static void do_write_log(struct logger_log *log, const void *buf, size_t count)
+{
+	size_t len;
+
+	len = min(count, log->size - log->w_off);
+	memcpy(log->buffer + log->w_off, buf, len);
+
+	if (count != len)
+		memcpy(log->buffer, buf + len, count - len);
+
+	log->w_off = logger_offset(log->w_off + count);
+
+}
+
+/*
+ * do_write_log_user - writes 'len' bytes from the user-space buffer 'buf' to
+ * the log 'log'
+ *
+ * The caller needs to hold log->mutex.
+ *
+ * Returns 'count' on success, negative error code on failure.
+ */
+static ssize_t do_write_log_from_user(struct logger_log *log,
+				      const void __user *buf, size_t count)
+{
+	size_t len;
+
+	len = min(count, log->size - log->w_off);
+	if (len && copy_from_user(log->buffer + log->w_off, buf, len))
+		return -EFAULT;
+
+	if (count != len)
+		if (copy_from_user(log->buffer, buf + len, count - len))
+			return -EFAULT;
+
+	log->w_off = logger_offset(log->w_off + count);
+
+	return count;
+}
+
+/*
+ * logger_aio_write - our write method, implementing support for write(),
+ * writev(), and aio_write(). Writes are our fast path, and we try to optimize
+ * them above all else.
+ */
+ssize_t logger_aio_write(struct kiocb *iocb, const struct iovec *iov,
+			 unsigned long nr_segs, loff_t ppos)
+{
+	struct logger_log *log = file_get_log(iocb->ki_filp);
+	size_t orig = log->w_off;
+	struct logger_entry header;
+	struct timespec now;
+	ssize_t ret = 0;
+
+	now = current_kernel_time();
+
+	header.pid = current->tgid;
+	header.tid = current->pid;
+	header.sec = now.tv_sec;
+	header.nsec = now.tv_nsec;
+	header.len = min_t(size_t, iocb->ki_left, LOGGER_ENTRY_MAX_PAYLOAD);
+
+	/* null writes succeed, return zero */
+	if (unlikely(!header.len))
+		return 0;
+
+	mutex_lock(&log->mutex);
+
+	/*
+	 * Fix up any readers, pulling them forward to the first readable
+	 * entry after (what will be) the new write offset. We do this now
+	 * because if we partially fail, we can end up with clobbered log
+	 * entries that encroach on readable buffer.
+	 */
+	fix_up_readers(log, sizeof(struct logger_entry) + header.len);
+
+	do_write_log(log, &header, sizeof(struct logger_entry));
+
+	while (nr_segs-- > 0) {
+		size_t len;
+		ssize_t nr;
+
+		/* figure out how much of this vector we can keep */
+		len = min_t(size_t, iov->iov_len, header.len - ret);
+
+		/* write out this segment's payload */
+		nr = do_write_log_from_user(log, iov->iov_base, len);
+		if (unlikely(nr < 0)) {
+			log->w_off = orig;
+			mutex_unlock(&log->mutex);
+			return nr;
+		}
+
+		iov++;
+		ret += nr;
+	}
+
+	mutex_unlock(&log->mutex);
+
+	/* wake up any blocked readers */
+	wake_up_interruptible(&log->wq);
+
+	return ret;
+}
+
+static struct logger_log *get_log_from_minor(int);
+
+/*
+ * logger_open - the log's open() file operation
+ *
+ * Note how near a no-op this is in the write-only case. Keep it that way!
+ */
+static int logger_open(struct inode *inode, struct file *file)
+{
+	struct logger_log *log;
+	int ret;
+
+	ret = nonseekable_open(inode, file);
+	if (ret)
+		return ret;
+
+	log = get_log_from_minor(MINOR(inode->i_rdev));
+	if (!log)
+		return -ENODEV;
+
+	if (file->f_mode & FMODE_READ) {
+		struct logger_reader *reader;
+
+		reader = kmalloc(sizeof(struct logger_reader), GFP_KERNEL);
+		if (!reader)
+			return -ENOMEM;
+
+		reader->log = log;
+		INIT_LIST_HEAD(&reader->list);
+
+		mutex_lock(&log->mutex);
+		reader->r_off = log->head;
+		list_add_tail(&reader->list, &log->readers);
+		mutex_unlock(&log->mutex);
+
+		file->private_data = reader;
+	} else
+		file->private_data = log;
+
+	return 0;
+}
+
+/*
+ * logger_release - the log's release file operation
+ *
+ * Note this is a total no-op in the write-only case. Keep it that way!
+ */
+static int logger_release(struct inode *ignored, struct file *file)
+{
+	if (file->f_mode & FMODE_READ) {
+		struct logger_reader *reader = file->private_data;
+		list_del(&reader->list);
+		kfree(reader);
+	}
+
+	return 0;
+}
+
+/*
+ * logger_poll - the log's poll file operation, for poll/select/epoll
+ *
+ * Note we always return POLLOUT, because you can always write() to the log.
+ * Note also that, strictly speaking, a return value of POLLIN does not
+ * guarantee that the log is readable without blocking, as there is a small
+ * chance that the writer can lap the reader in the interim between poll()
+ * returning and the read() request.
+ */
+static unsigned int logger_poll(struct file *file, poll_table *wait)
+{
+	struct logger_reader *reader;
+	struct logger_log *log;
+	unsigned int ret = POLLOUT | POLLWRNORM;
+
+	if (!(file->f_mode & FMODE_READ))
+		return ret;
+
+	reader = file->private_data;
+	log = reader->log;
+
+	poll_wait(file, &log->wq, wait);
+
+	mutex_lock(&log->mutex);
+	if (log->w_off != reader->r_off)
+		ret |= POLLIN | POLLRDNORM;
+	mutex_unlock(&log->mutex);
+
+	return ret;
+}
+
+static long logger_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+	struct logger_log *log = file_get_log(file);
+	struct logger_reader *reader;
+	long ret = -ENOTTY;
+
+	mutex_lock(&log->mutex);
+
+	switch (cmd) {
+	case LOGGER_GET_LOG_BUF_SIZE:
+		ret = log->size;
+		break;
+	case LOGGER_GET_LOG_LEN:
+		if (!(file->f_mode & FMODE_READ)) {
+			ret = -EBADF;
+			break;
+		}
+		reader = file->private_data;
+		if (log->w_off >= reader->r_off)
+			ret = log->w_off - reader->r_off;
+		else
+			ret = (log->size - reader->r_off) + log->w_off;
+		break;
+	case LOGGER_GET_NEXT_ENTRY_LEN:
+		if (!(file->f_mode & FMODE_READ)) {
+			ret = -EBADF;
+			break;
+		}
+		reader = file->private_data;
+		if (log->w_off != reader->r_off)
+			ret = get_entry_len(log, reader->r_off);
+		else
+			ret = 0;
+		break;
+	case LOGGER_FLUSH_LOG:
+		if (!(file->f_mode & FMODE_WRITE)) {
+			ret = -EBADF;
+			break;
+		}
+		list_for_each_entry(reader, &log->readers, list)
+			reader->r_off = log->w_off;
+		log->head = log->w_off;
+		ret = 0;
+		break;
+	}
+
+	mutex_unlock(&log->mutex);
+
+	return ret;
+}
+
+static const struct file_operations logger_fops = {
+	.owner = THIS_MODULE,
+	.read = logger_read,
+	.aio_write = logger_aio_write,
+	.poll = logger_poll,
+	.unlocked_ioctl = logger_ioctl,
+	.compat_ioctl = logger_ioctl,
+	.open = logger_open,
+	.release = logger_release,
+};
+
+/*
+ * Defines a log structure with name 'NAME' and a size of 'SIZE' bytes, which
+ * must be a power of two, greater than LOGGER_ENTRY_MAX_LEN, and less than
+ * LONG_MAX minus LOGGER_ENTRY_MAX_LEN.
+ */
+#define DEFINE_LOGGER_DEVICE(VAR, NAME, SIZE) \
+static unsigned char _buf_ ## VAR[SIZE]; \
+static struct logger_log VAR = { \
+	.buffer = _buf_ ## VAR, \
+	.misc = { \
+		.minor = MISC_DYNAMIC_MINOR, \
+		.name = NAME, \
+		.fops = &logger_fops, \
+		.parent = NULL, \
+	}, \
+	.wq = __WAIT_QUEUE_HEAD_INITIALIZER(VAR .wq), \
+	.readers = LIST_HEAD_INIT(VAR .readers), \
+	.mutex = __MUTEX_INITIALIZER(VAR .mutex), \
+	.w_off = 0, \
+	.head = 0, \
+	.size = SIZE, \
+};
+
+DEFINE_LOGGER_DEVICE(log_main, LOGGER_LOG_MAIN, 256*1024)
+DEFINE_LOGGER_DEVICE(log_events, LOGGER_LOG_EVENTS, 256*1024)
+DEFINE_LOGGER_DEVICE(log_radio, LOGGER_LOG_RADIO, 256*1024)
+DEFINE_LOGGER_DEVICE(log_system, LOGGER_LOG_SYSTEM, 256*1024)
+
+static struct logger_log *get_log_from_minor(int minor)
+{
+	if (log_main.misc.minor == minor)
+		return &log_main;
+	if (log_events.misc.minor == minor)
+		return &log_events;
+	if (log_radio.misc.minor == minor)
+		return &log_radio;
+	if (log_system.misc.minor == minor)
+		return &log_system;
+	return NULL;
+}
+
+static int __init init_log(struct logger_log *log)
+{
+	int ret;
+
+	ret = misc_register(&log->misc);
+	if (unlikely(ret)) {
+		printk(KERN_ERR "logger: failed to register misc "
+		       "device for log '%s'!\n", log->misc.name);
+		return ret;
+	}
+
+	printk(KERN_INFO "logger: created %luK log '%s'\n",
+	       (unsigned long) log->size >> 10, log->misc.name);
+
+	return 0;
+}
+
+static int __init logger_init(void)
+{
+	int ret;
+
+	ret = init_log(&log_main);
+	if (unlikely(ret))
+		goto out;
+
+	ret = init_log(&log_events);
+	if (unlikely(ret))
+		goto out;
+
+	ret = init_log(&log_radio);
+	if (unlikely(ret))
+		goto out;
+
+	ret = init_log(&log_system);
+	if (unlikely(ret))
+		goto out;
+
+out:
+	return ret;
+}
+device_initcall(logger_init);
diff --git a/drivers/staging/android/logger.h b/drivers/staging/android/logger.h
new file mode 100644
index 000000000000..2cb06e9d8f98
--- /dev/null
+++ b/drivers/staging/android/logger.h
@@ -0,0 +1,49 @@
+/* include/linux/logger.h
+ *
+ * Copyright (C) 2007-2008 Google, Inc.
+ * Author: Robert Love <rlove@android.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef _LINUX_LOGGER_H
+#define _LINUX_LOGGER_H
+
+#include <linux/types.h>
+#include <linux/ioctl.h>
+
+struct logger_entry {
+	__u16		len;	/* length of the payload */
+	__u16		__pad;	/* no matter what, we get 2 bytes of padding */
+	__s32		pid;	/* generating process's pid */
+	__s32		tid;	/* generating process's tid */
+	__s32		sec;	/* seconds since Epoch */
+	__s32		nsec;	/* nanoseconds */
+	char		msg[0];	/* the entry's payload */
+};
+
+#define LOGGER_LOG_RADIO	"log_radio"	/* radio-related messages */
+#define LOGGER_LOG_EVENTS	"log_events"	/* system/hardware events */
+#define LOGGER_LOG_SYSTEM	"log_system"	/* system/framework messages */
+#define LOGGER_LOG_MAIN		"log_main"	/* everything else */
+
+#define LOGGER_ENTRY_MAX_LEN		(4*1024)
+#define LOGGER_ENTRY_MAX_PAYLOAD	\
+	(LOGGER_ENTRY_MAX_LEN - sizeof(struct logger_entry))
+
+#define __LOGGERIO	0xAE
+
+#define LOGGER_GET_LOG_BUF_SIZE		_IO(__LOGGERIO, 1) /* size of log */
+#define LOGGER_GET_LOG_LEN		_IO(__LOGGERIO, 2) /* used log len */
+#define LOGGER_GET_NEXT_ENTRY_LEN	_IO(__LOGGERIO, 3) /* next entry len */
+#define LOGGER_FLUSH_LOG		_IO(__LOGGERIO, 4) /* flush log */
+
+#endif /* _LINUX_LOGGER_H */
diff --git a/drivers/staging/android/lowmemorykiller.c b/drivers/staging/android/lowmemorykiller.c
new file mode 100644
index 000000000000..2d8d2b796101
--- /dev/null
+++ b/drivers/staging/android/lowmemorykiller.c
@@ -0,0 +1,219 @@
+/* drivers/misc/lowmemorykiller.c
+ *
+ * The lowmemorykiller driver lets user-space specify a set of memory thresholds
+ * where processes with a range of oom_adj values will get killed. Specify the
+ * minimum oom_adj values in /sys/module/lowmemorykiller/parameters/adj and the
+ * number of free pages in /sys/module/lowmemorykiller/parameters/minfree. Both
+ * files take a comma separated list of numbers in ascending order.
+ *
+ * For example, write "0,8" to /sys/module/lowmemorykiller/parameters/adj and
+ * "1024,4096" to /sys/module/lowmemorykiller/parameters/minfree to kill
+ * processes with a oom_adj value of 8 or higher when the free memory drops
+ * below 4096 pages and kill processes with a oom_adj value of 0 or higher
+ * when the free memory drops below 1024 pages.
+ *
+ * The driver considers memory used for caches to be free, but if a large
+ * percentage of the cached memory is locked this can be very inaccurate
+ * and processes may not get killed until the normal oom killer is triggered.
+ *
+ * Copyright (C) 2007-2008 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/mm.h>
+#include <linux/oom.h>
+#include <linux/sched.h>
+#include <linux/profile.h>
+#include <linux/notifier.h>
+
+static uint32_t lowmem_debug_level = 2;
+static int lowmem_adj[6] = {
+	0,
+	1,
+	6,
+	12,
+};
+static int lowmem_adj_size = 4;
+static size_t lowmem_minfree[6] = {
+	3 * 512,	/* 6MB */
+	2 * 1024,	/* 8MB */
+	4 * 1024,	/* 16MB */
+	16 * 1024,	/* 64MB */
+};
+static int lowmem_minfree_size = 4;
+
+static struct task_struct *lowmem_deathpending;
+
+#define lowmem_print(level, x...)			\
+	do {						\
+		if (lowmem_debug_level >= (level))	\
+			printk(x);			\
+	} while (0)
+
+static int
+task_notify_func(struct notifier_block *self, unsigned long val, void *data);
+
+static struct notifier_block task_nb = {
+	.notifier_call	= task_notify_func,
+};
+
+static int
+task_notify_func(struct notifier_block *self, unsigned long val, void *data)
+{
+	struct task_struct *task = data;
+	if (task == lowmem_deathpending) {
+		lowmem_deathpending = NULL;
+		task_handoff_unregister(&task_nb);
+	}
+	return NOTIFY_OK;
+}
+
+static int lowmem_shrink(struct shrinker *s, struct shrink_control *sc)
+{
+	struct task_struct *p;
+	struct task_struct *selected = NULL;
+	int rem = 0;
+	int tasksize;
+	int i;
+	int min_adj = OOM_ADJUST_MAX + 1;
+	int selected_tasksize = 0;
+	int selected_oom_adj;
+	int array_size = ARRAY_SIZE(lowmem_adj);
+	int other_free = global_page_state(NR_FREE_PAGES);
+	int other_file = global_page_state(NR_FILE_PAGES) -
+						global_page_state(NR_SHMEM);
+
+	/*
+	 * If we already have a death outstanding, then
+	 * bail out right away; indicating to vmscan
+	 * that we have nothing further to offer on
+	 * this pass.
+	 *
+	 * Note: Currently you need CONFIG_PROFILING
+	 * for this to work correctly.
+	 */
+	if (lowmem_deathpending)
+		return 0;
+
+	if (lowmem_adj_size < array_size)
+		array_size = lowmem_adj_size;
+	if (lowmem_minfree_size < array_size)
+		array_size = lowmem_minfree_size;
+	for (i = 0; i < array_size; i++) {
+		if (other_free < lowmem_minfree[i] &&
+		    other_file < lowmem_minfree[i]) {
+			min_adj = lowmem_adj[i];
+			break;
+		}
+	}
+	if (sc->nr_to_scan > 0)
+		lowmem_print(3, "lowmem_shrink %lu, %x, ofree %d %d, ma %d\n",
+				sc->nr_to_scan, sc->gfp_mask, other_free,
+				other_file, min_adj);
+	rem = global_page_state(NR_ACTIVE_ANON) +
+		global_page_state(NR_ACTIVE_FILE) +
+		global_page_state(NR_INACTIVE_ANON) +
+		global_page_state(NR_INACTIVE_FILE);
+	if (sc->nr_to_scan <= 0 || min_adj == OOM_ADJUST_MAX + 1) {
+		lowmem_print(5, "lowmem_shrink %lu, %x, return %d\n",
+			     sc->nr_to_scan, sc->gfp_mask, rem);
+		return rem;
+	}
+	selected_oom_adj = min_adj;
+
+	read_lock(&tasklist_lock);
+	for_each_process(p) {
+		struct mm_struct *mm;
+		struct signal_struct *sig;
+		int oom_adj;
+
+		task_lock(p);
+		mm = p->mm;
+		sig = p->signal;
+		if (!mm || !sig) {
+			task_unlock(p);
+			continue;
+		}
+		oom_adj = sig->oom_adj;
+		if (oom_adj < min_adj) {
+			task_unlock(p);
+			continue;
+		}
+		tasksize = get_mm_rss(mm);
+		task_unlock(p);
+		if (tasksize <= 0)
+			continue;
+		if (selected) {
+			if (oom_adj < selected_oom_adj)
+				continue;
+			if (oom_adj == selected_oom_adj &&
+			    tasksize <= selected_tasksize)
+				continue;
+		}
+		selected = p;
+		selected_tasksize = tasksize;
+		selected_oom_adj = oom_adj;
+		lowmem_print(2, "select %d (%s), adj %d, size %d, to kill\n",
+			     p->pid, p->comm, oom_adj, tasksize);
+	}
+	if (selected) {
+		lowmem_print(1, "send sigkill to %d (%s), adj %d, size %d\n",
+			     selected->pid, selected->comm,
+			     selected_oom_adj, selected_tasksize);
+		/*
+		 * If CONFIG_PROFILING is off, then task_handoff_register()
+		 * is a nop. In that case we don't want to stall the killer
+		 * by setting lowmem_deathpending.
+		 */
+#ifdef CONFIG_PROFILING
+		lowmem_deathpending = selected;
+		task_handoff_register(&task_nb);
+#endif
+		force_sig(SIGKILL, selected);
+		rem -= selected_tasksize;
+	}
+	lowmem_print(4, "lowmem_shrink %lu, %x, return %d\n",
+		     sc->nr_to_scan, sc->gfp_mask, rem);
+	read_unlock(&tasklist_lock);
+	return rem;
+}
+
+static struct shrinker lowmem_shrinker = {
+	.shrink = lowmem_shrink,
+	.seeks = DEFAULT_SEEKS * 16
+};
+
+static int __init lowmem_init(void)
+{
+	register_shrinker(&lowmem_shrinker);
+	return 0;
+}
+
+static void __exit lowmem_exit(void)
+{
+	unregister_shrinker(&lowmem_shrinker);
+}
+
+module_param_named(cost, lowmem_shrinker.seeks, int, S_IRUGO | S_IWUSR);
+module_param_array_named(adj, lowmem_adj, int, &lowmem_adj_size,
+			 S_IRUGO | S_IWUSR);
+module_param_array_named(minfree, lowmem_minfree, uint, &lowmem_minfree_size,
+			 S_IRUGO | S_IWUSR);
+module_param_named(debug_level, lowmem_debug_level, uint, S_IRUGO | S_IWUSR);
+
+module_init(lowmem_init);
+module_exit(lowmem_exit);
+
+MODULE_LICENSE("GPL");
+
diff --git a/drivers/staging/android/pmem.c b/drivers/staging/android/pmem.c
new file mode 100644
index 000000000000..7d97032c6508
--- /dev/null
+++ b/drivers/staging/android/pmem.c
@@ -0,0 +1,1345 @@
+/* pmem.c
+ *
+ * Copyright (C) 2007 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/miscdevice.h>
+#include <linux/platform_device.h>
+#include <linux/fs.h>
+#include <linux/file.h>
+#include <linux/mm.h>
+#include <linux/list.h>
+#include <linux/mutex.h>
+#include <linux/debugfs.h>
+#include <linux/mempolicy.h>
+#include <linux/sched.h>
+#include <asm/io.h>
+#include <asm/uaccess.h>
+#include <asm/cacheflush.h>
+#include "android_pmem.h"
+
+#define PMEM_MAX_DEVICES 10
+#define PMEM_MAX_ORDER 128
+#define PMEM_MIN_ALLOC PAGE_SIZE
+
+#define PMEM_DEBUG 1
+
+/* indicates that a refernce to this file has been taken via get_pmem_file,
+ * the file should not be released until put_pmem_file is called */
+#define PMEM_FLAGS_BUSY 0x1
+/* indicates that this is a suballocation of a larger master range */
+#define PMEM_FLAGS_CONNECTED 0x1 << 1
+/* indicates this is a master and not a sub allocation and that it is mmaped */
+#define PMEM_FLAGS_MASTERMAP 0x1 << 2
+/* submap and unsubmap flags indicate:
+ * 00: subregion has never been mmaped
+ * 10: subregion has been mmaped, reference to the mm was taken
+ * 11: subretion has ben released, refernece to the mm still held
+ * 01: subretion has been released, reference to the mm has been released
+ */
+#define PMEM_FLAGS_SUBMAP 0x1 << 3
+#define PMEM_FLAGS_UNSUBMAP 0x1 << 4
+
+
+struct pmem_data {
+	/* in alloc mode: an index into the bitmap
+	 * in no_alloc mode: the size of the allocation */
+	int index;
+	/* see flags above for descriptions */
+	unsigned int flags;
+	/* protects this data field, if the mm_mmap sem will be held at the
+	 * same time as this sem, the mm sem must be taken first (as this is
+	 * the order for vma_open and vma_close ops */
+	struct rw_semaphore sem;
+	/* info about the mmaping process */
+	struct vm_area_struct *vma;
+	/* task struct of the mapping process */
+	struct task_struct *task;
+	/* process id of teh mapping process */
+	pid_t pid;
+	/* file descriptor of the master */
+	int master_fd;
+	/* file struct of the master */
+	struct file *master_file;
+	/* a list of currently available regions if this is a suballocation */
+	struct list_head region_list;
+	/* a linked list of data so we can access them for debugging */
+	struct list_head list;
+#if PMEM_DEBUG
+	int ref;
+#endif
+};
+
+struct pmem_bits {
+	unsigned allocated:1;		/* 1 if allocated, 0 if free */
+	unsigned order:7;		/* size of the region in pmem space */
+};
+
+struct pmem_region_node {
+	struct pmem_region region;
+	struct list_head list;
+};
+
+#define PMEM_DEBUG_MSGS 0
+#if PMEM_DEBUG_MSGS
+#define DLOG(fmt,args...) \
+	do { printk(KERN_INFO "[%s:%s:%d] "fmt, __FILE__, __func__, __LINE__, \
+		    ##args); } \
+	while (0)
+#else
+#define DLOG(x...) do {} while (0)
+#endif
+
+struct pmem_info {
+	struct miscdevice dev;
+	/* physical start address of the remaped pmem space */
+	unsigned long base;
+	/* vitual start address of the remaped pmem space */
+	unsigned char __iomem *vbase;
+	/* total size of the pmem space */
+	unsigned long size;
+	/* number of entries in the pmem space */
+	unsigned long num_entries;
+	/* pfn of the garbage page in memory */
+	unsigned long garbage_pfn;
+	/* index of the garbage page in the pmem space */
+	int garbage_index;
+	/* the bitmap for the region indicating which entries are allocated
+	 * and which are free */
+	struct pmem_bits *bitmap;
+	/* indicates the region should not be managed with an allocator */
+	unsigned no_allocator;
+	/* indicates maps of this region should be cached, if a mix of
+	 * cached and uncached is desired, set this and open the device with
+	 * O_SYNC to get an uncached region */
+	unsigned cached;
+	unsigned buffered;
+	/* in no_allocator mode the first mapper gets the whole space and sets
+	 * this flag */
+	unsigned allocated;
+	/* for debugging, creates a list of pmem file structs, the
+	 * data_list_lock should be taken before pmem_data->sem if both are
+	 * needed */
+	struct mutex data_list_lock;
+	struct list_head data_list;
+	/* pmem_sem protects the bitmap array
+	 * a write lock should be held when modifying entries in bitmap
+	 * a read lock should be held when reading data from bits or
+	 * dereferencing a pointer into bitmap
+	 *
+	 * pmem_data->sem protects the pmem data of a particular file
+	 * Many of the function that require the pmem_data->sem have a non-
+	 * locking version for when the caller is already holding that sem.
+	 *
+	 * IF YOU TAKE BOTH LOCKS TAKE THEM IN THIS ORDER:
+	 * down(pmem_data->sem) => down(bitmap_sem)
+	 */
+	struct rw_semaphore bitmap_sem;
+
+	long (*ioctl)(struct file *, unsigned int, unsigned long);
+	int (*release)(struct inode *, struct file *);
+};
+
+static struct pmem_info pmem[PMEM_MAX_DEVICES];
+static int id_count;
+
+#define PMEM_IS_FREE(id, index) !(pmem[id].bitmap[index].allocated)
+#define PMEM_ORDER(id, index) pmem[id].bitmap[index].order
+#define PMEM_BUDDY_INDEX(id, index) (index ^ (1 << PMEM_ORDER(id, index)))
+#define PMEM_NEXT_INDEX(id, index) (index + (1 << PMEM_ORDER(id, index)))
+#define PMEM_OFFSET(index) (index * PMEM_MIN_ALLOC)
+#define PMEM_START_ADDR(id, index) (PMEM_OFFSET(index) + pmem[id].base)
+#define PMEM_LEN(id, index) ((1 << PMEM_ORDER(id, index)) * PMEM_MIN_ALLOC)
+#define PMEM_END_ADDR(id, index) (PMEM_START_ADDR(id, index) + \
+	PMEM_LEN(id, index))
+#define PMEM_START_VADDR(id, index) (PMEM_OFFSET(id, index) + pmem[id].vbase)
+#define PMEM_END_VADDR(id, index) (PMEM_START_VADDR(id, index) + \
+	PMEM_LEN(id, index))
+#define PMEM_REVOKED(data) (data->flags & PMEM_FLAGS_REVOKED)
+#define PMEM_IS_PAGE_ALIGNED(addr) (!((addr) & (~PAGE_MASK)))
+#define PMEM_IS_SUBMAP(data) ((data->flags & PMEM_FLAGS_SUBMAP) && \
+	(!(data->flags & PMEM_FLAGS_UNSUBMAP)))
+
+static int pmem_release(struct inode *, struct file *);
+static int pmem_mmap(struct file *, struct vm_area_struct *);
+static int pmem_open(struct inode *, struct file *);
+static long pmem_ioctl(struct file *, unsigned int, unsigned long);
+
+struct file_operations pmem_fops = {
+	.release = pmem_release,
+	.mmap = pmem_mmap,
+	.open = pmem_open,
+	.unlocked_ioctl = pmem_ioctl,
+};
+
+static int get_id(struct file *file)
+{
+	return MINOR(file->f_dentry->d_inode->i_rdev);
+}
+
+int is_pmem_file(struct file *file)
+{
+	int id;
+
+	if (unlikely(!file || !file->f_dentry || !file->f_dentry->d_inode))
+		return 0;
+	id = get_id(file);
+	if (unlikely(id >= PMEM_MAX_DEVICES))
+		return 0;
+	if (unlikely(file->f_dentry->d_inode->i_rdev !=
+	     MKDEV(MISC_MAJOR, pmem[id].dev.minor)))
+		return 0;
+	return 1;
+}
+
+static int has_allocation(struct file *file)
+{
+	struct pmem_data *data;
+	/* check is_pmem_file first if not accessed via pmem_file_ops */
+
+	if (unlikely(!file->private_data))
+		return 0;
+	data = (struct pmem_data *)file->private_data;
+	if (unlikely(data->index < 0))
+		return 0;
+	return 1;
+}
+
+static int is_master_owner(struct file *file)
+{
+	struct file *master_file;
+	struct pmem_data *data;
+	int put_needed, ret = 0;
+
+	if (!is_pmem_file(file) || !has_allocation(file))
+		return 0;
+	data = (struct pmem_data *)file->private_data;
+	if (PMEM_FLAGS_MASTERMAP & data->flags)
+		return 1;
+	master_file = fget_light(data->master_fd, &put_needed);
+	if (master_file && data->master_file == master_file)
+		ret = 1;
+	fput_light(master_file, put_needed);
+	return ret;
+}
+
+static int pmem_free(int id, int index)
+{
+	/* caller should hold the write lock on pmem_sem! */
+	int buddy, curr = index;
+	DLOG("index %d\n", index);
+
+	if (pmem[id].no_allocator) {
+		pmem[id].allocated = 0;
+		return 0;
+	}
+	/* clean up the bitmap, merging any buddies */
+	pmem[id].bitmap[curr].allocated = 0;
+	/* find a slots buddy Buddy# = Slot# ^ (1 << order)
+	 * if the buddy is also free merge them
+	 * repeat until the buddy is not free or end of the bitmap is reached
+	 */
+	do {
+		buddy = PMEM_BUDDY_INDEX(id, curr);
+		if (PMEM_IS_FREE(id, buddy) &&
+				PMEM_ORDER(id, buddy) == PMEM_ORDER(id, curr)) {
+			PMEM_ORDER(id, buddy)++;
+			PMEM_ORDER(id, curr)++;
+			curr = min(buddy, curr);
+		} else {
+			break;
+		}
+	} while (curr < pmem[id].num_entries);
+
+	return 0;
+}
+
+static void pmem_revoke(struct file *file, struct pmem_data *data);
+
+static int pmem_release(struct inode *inode, struct file *file)
+{
+	struct pmem_data *data = (struct pmem_data *)file->private_data;
+	struct pmem_region_node *region_node;
+	struct list_head *elt, *elt2;
+	int id = get_id(file), ret = 0;
+
+
+	mutex_lock(&pmem[id].data_list_lock);
+	/* if this file is a master, revoke all the memory in the connected
+	 *  files */
+	if (PMEM_FLAGS_MASTERMAP & data->flags) {
+		struct pmem_data *sub_data;
+		list_for_each(elt, &pmem[id].data_list) {
+			sub_data = list_entry(elt, struct pmem_data, list);
+			down_read(&sub_data->sem);
+			if (PMEM_IS_SUBMAP(sub_data) &&
+			    file == sub_data->master_file) {
+				up_read(&sub_data->sem);
+				pmem_revoke(file, sub_data);
+			}  else
+				up_read(&sub_data->sem);
+		}
+	}
+	list_del(&data->list);
+	mutex_unlock(&pmem[id].data_list_lock);
+
+
+	down_write(&data->sem);
+
+	/* if its not a conencted file and it has an allocation, free it */
+	if (!(PMEM_FLAGS_CONNECTED & data->flags) && has_allocation(file)) {
+		down_write(&pmem[id].bitmap_sem);
+		ret = pmem_free(id, data->index);
+		up_write(&pmem[id].bitmap_sem);
+	}
+
+	/* if this file is a submap (mapped, connected file), downref the
+	 * task struct */
+	if (PMEM_FLAGS_SUBMAP & data->flags)
+		if (data->task) {
+			put_task_struct(data->task);
+			data->task = NULL;
+		}
+
+	file->private_data = NULL;
+
+	list_for_each_safe(elt, elt2, &data->region_list) {
+		region_node = list_entry(elt, struct pmem_region_node, list);
+		list_del(elt);
+		kfree(region_node);
+	}
+	BUG_ON(!list_empty(&data->region_list));
+
+	up_write(&data->sem);
+	kfree(data);
+	if (pmem[id].release)
+		ret = pmem[id].release(inode, file);
+
+	return ret;
+}
+
+static int pmem_open(struct inode *inode, struct file *file)
+{
+	struct pmem_data *data;
+	int id = get_id(file);
+	int ret = 0;
+
+	DLOG("current %u file %p(%d)\n", current->pid, file, file_count(file));
+	/* setup file->private_data to indicate its unmapped */
+	/*  you can only open a pmem device one time */
+	if (file->private_data != NULL)
+		return -1;
+	data = kmalloc(sizeof(struct pmem_data), GFP_KERNEL);
+	if (!data) {
+		printk("pmem: unable to allocate memory for pmem metadata.");
+		return -1;
+	}
+	data->flags = 0;
+	data->index = -1;
+	data->task = NULL;
+	data->vma = NULL;
+	data->pid = 0;
+	data->master_file = NULL;
+#if PMEM_DEBUG
+	data->ref = 0;
+#endif
+	INIT_LIST_HEAD(&data->region_list);
+	init_rwsem(&data->sem);
+
+	file->private_data = data;
+	INIT_LIST_HEAD(&data->list);
+
+	mutex_lock(&pmem[id].data_list_lock);
+	list_add(&data->list, &pmem[id].data_list);
+	mutex_unlock(&pmem[id].data_list_lock);
+	return ret;
+}
+
+static unsigned long pmem_order(unsigned long len)
+{
+	int i;
+
+	len = (len + PMEM_MIN_ALLOC - 1)/PMEM_MIN_ALLOC;
+	len--;
+	for (i = 0; i < sizeof(len)*8; i++)
+		if (len >> i == 0)
+			break;
+	return i;
+}
+
+static int pmem_allocate(int id, unsigned long len)
+{
+	/* caller should hold the write lock on pmem_sem! */
+	/* return the corresponding pdata[] entry */
+	int curr = 0;
+	int end = pmem[id].num_entries;
+	int best_fit = -1;
+	unsigned long order = pmem_order(len);
+
+	if (pmem[id].no_allocator) {
+		DLOG("no allocator");
+		if ((len > pmem[id].size) || pmem[id].allocated)
+			return -1;
+		pmem[id].allocated = 1;
+		return len;
+	}
+
+	if (order > PMEM_MAX_ORDER)
+		return -1;
+	DLOG("order %lx\n", order);
+
+	/* look through the bitmap:
+	 * 	if you find a free slot of the correct order use it
+	 * 	otherwise, use the best fit (smallest with size > order) slot
+	 */
+	while (curr < end) {
+		if (PMEM_IS_FREE(id, curr)) {
+			if (PMEM_ORDER(id, curr) == (unsigned char)order) {
+				/* set the not free bit and clear others */
+				best_fit = curr;
+				break;
+			}
+			if (PMEM_ORDER(id, curr) > (unsigned char)order &&
+			    (best_fit < 0 ||
+			     PMEM_ORDER(id, curr) < PMEM_ORDER(id, best_fit)))
+				best_fit = curr;
+		}
+		curr = PMEM_NEXT_INDEX(id, curr);
+	}
+
+	/* if best_fit < 0, there are no suitable slots,
+	 * return an error
+	 */
+	if (best_fit < 0) {
+		printk("pmem: no space left to allocate!\n");
+		return -1;
+	}
+
+	/* now partition the best fit:
+	 * 	split the slot into 2 buddies of order - 1
+	 * 	repeat until the slot is of the correct order
+	 */
+	while (PMEM_ORDER(id, best_fit) > (unsigned char)order) {
+		int buddy;
+		PMEM_ORDER(id, best_fit) -= 1;
+		buddy = PMEM_BUDDY_INDEX(id, best_fit);
+		PMEM_ORDER(id, buddy) = PMEM_ORDER(id, best_fit);
+	}
+	pmem[id].bitmap[best_fit].allocated = 1;
+	return best_fit;
+}
+
+static pgprot_t pmem_access_prot(struct file *file, pgprot_t vma_prot)
+{
+	int id = get_id(file);
+#ifdef pgprot_noncached
+	if (pmem[id].cached == 0 || file->f_flags & O_SYNC)
+		return pgprot_noncached(vma_prot);
+#endif
+#ifdef pgprot_ext_buffered
+	else if (pmem[id].buffered)
+		return pgprot_ext_buffered(vma_prot);
+#endif
+	return vma_prot;
+}
+
+static unsigned long pmem_start_addr(int id, struct pmem_data *data)
+{
+	if (pmem[id].no_allocator)
+		return PMEM_START_ADDR(id, 0);
+	else
+		return PMEM_START_ADDR(id, data->index);
+
+}
+
+static void *pmem_start_vaddr(int id, struct pmem_data *data)
+{
+	return pmem_start_addr(id, data) - pmem[id].base + pmem[id].vbase;
+}
+
+static unsigned long pmem_len(int id, struct pmem_data *data)
+{
+	if (pmem[id].no_allocator)
+		return data->index;
+	else
+		return PMEM_LEN(id, data->index);
+}
+
+static int pmem_map_garbage(int id, struct vm_area_struct *vma,
+			    struct pmem_data *data, unsigned long offset,
+			    unsigned long len)
+{
+	int i, garbage_pages = len >> PAGE_SHIFT;
+
+	vma->vm_flags |= VM_IO | VM_RESERVED | VM_PFNMAP | VM_SHARED | VM_WRITE;
+	for (i = 0; i < garbage_pages; i++) {
+		if (vm_insert_pfn(vma, vma->vm_start + offset + (i * PAGE_SIZE),
+		    pmem[id].garbage_pfn))
+			return -EAGAIN;
+	}
+	return 0;
+}
+
+static int pmem_unmap_pfn_range(int id, struct vm_area_struct *vma,
+				struct pmem_data *data, unsigned long offset,
+				unsigned long len)
+{
+	int garbage_pages;
+	DLOG("unmap offset %lx len %lx\n", offset, len);
+
+	BUG_ON(!PMEM_IS_PAGE_ALIGNED(len));
+
+	garbage_pages = len >> PAGE_SHIFT;
+	zap_page_range(vma, vma->vm_start + offset, len, NULL);
+	pmem_map_garbage(id, vma, data, offset, len);
+	return 0;
+}
+
+static int pmem_map_pfn_range(int id, struct vm_area_struct *vma,
+			      struct pmem_data *data, unsigned long offset,
+			      unsigned long len)
+{
+	DLOG("map offset %lx len %lx\n", offset, len);
+	BUG_ON(!PMEM_IS_PAGE_ALIGNED(vma->vm_start));
+	BUG_ON(!PMEM_IS_PAGE_ALIGNED(vma->vm_end));
+	BUG_ON(!PMEM_IS_PAGE_ALIGNED(len));
+	BUG_ON(!PMEM_IS_PAGE_ALIGNED(offset));
+
+	if (io_remap_pfn_range(vma, vma->vm_start + offset,
+		(pmem_start_addr(id, data) + offset) >> PAGE_SHIFT,
+		len, vma->vm_page_prot)) {
+		return -EAGAIN;
+	}
+	return 0;
+}
+
+static int pmem_remap_pfn_range(int id, struct vm_area_struct *vma,
+			      struct pmem_data *data, unsigned long offset,
+			      unsigned long len)
+{
+	/* hold the mm semp for the vma you are modifying when you call this */
+	BUG_ON(!vma);
+	zap_page_range(vma, vma->vm_start + offset, len, NULL);
+	return pmem_map_pfn_range(id, vma, data, offset, len);
+}
+
+static void pmem_vma_open(struct vm_area_struct *vma)
+{
+	struct file *file = vma->vm_file;
+	struct pmem_data *data = file->private_data;
+	int id = get_id(file);
+	/* this should never be called as we don't support copying pmem
+	 * ranges via fork */
+	BUG_ON(!has_allocation(file));
+	down_write(&data->sem);
+	/* remap the garbage pages, forkers don't get access to the data */
+	pmem_unmap_pfn_range(id, vma, data, 0, vma->vm_start - vma->vm_end);
+	up_write(&data->sem);
+}
+
+static void pmem_vma_close(struct vm_area_struct *vma)
+{
+	struct file *file = vma->vm_file;
+	struct pmem_data *data = file->private_data;
+
+	DLOG("current %u ppid %u file %p count %d\n", current->pid,
+	     current->parent->pid, file, file_count(file));
+	if (unlikely(!is_pmem_file(file) || !has_allocation(file))) {
+		printk(KERN_WARNING "pmem: something is very wrong, you are "
+		       "closing a vm backing an allocation that doesn't "
+		       "exist!\n");
+		return;
+	}
+	down_write(&data->sem);
+	if (data->vma == vma) {
+		data->vma = NULL;
+		if ((data->flags & PMEM_FLAGS_CONNECTED) &&
+		    (data->flags & PMEM_FLAGS_SUBMAP))
+			data->flags |= PMEM_FLAGS_UNSUBMAP;
+	}
+	/* the kernel is going to free this vma now anyway */
+	up_write(&data->sem);
+}
+
+static struct vm_operations_struct vm_ops = {
+	.open = pmem_vma_open,
+	.close = pmem_vma_close,
+};
+
+static int pmem_mmap(struct file *file, struct vm_area_struct *vma)
+{
+	struct pmem_data *data;
+	int index;
+	unsigned long vma_size =  vma->vm_end - vma->vm_start;
+	int ret = 0, id = get_id(file);
+
+	if (vma->vm_pgoff || !PMEM_IS_PAGE_ALIGNED(vma_size)) {
+#if PMEM_DEBUG
+		printk(KERN_ERR "pmem: mmaps must be at offset zero, aligned"
+				" and a multiple of pages_size.\n");
+#endif
+		return -EINVAL;
+	}
+
+	data = (struct pmem_data *)file->private_data;
+	down_write(&data->sem);
+	/* check this file isn't already mmaped, for submaps check this file
+	 * has never been mmaped */
+	if ((data->flags & PMEM_FLAGS_SUBMAP) ||
+	    (data->flags & PMEM_FLAGS_UNSUBMAP)) {
+#if PMEM_DEBUG
+		printk(KERN_ERR "pmem: you can only mmap a pmem file once, "
+		       "this file is already mmaped. %x\n", data->flags);
+#endif
+		ret = -EINVAL;
+		goto error;
+	}
+	/* if file->private_data == unalloced, alloc*/
+	if (data && data->index == -1) {
+		down_write(&pmem[id].bitmap_sem);
+		index = pmem_allocate(id, vma->vm_end - vma->vm_start);
+		up_write(&pmem[id].bitmap_sem);
+		data->index = index;
+	}
+	/* either no space was available or an error occured */
+	if (!has_allocation(file)) {
+		ret = -EINVAL;
+		printk("pmem: could not find allocation for map.\n");
+		goto error;
+	}
+
+	if (pmem_len(id, data) < vma_size) {
+#if PMEM_DEBUG
+		printk(KERN_WARNING "pmem: mmap size [%lu] does not match"
+		       "size of backing region [%lu].\n", vma_size,
+		       pmem_len(id, data));
+#endif
+		ret = -EINVAL;
+		goto error;
+	}
+
+	vma->vm_pgoff = pmem_start_addr(id, data) >> PAGE_SHIFT;
+	vma->vm_page_prot = pmem_access_prot(file, vma->vm_page_prot);
+
+	if (data->flags & PMEM_FLAGS_CONNECTED) {
+		struct pmem_region_node *region_node;
+		struct list_head *elt;
+		if (pmem_map_garbage(id, vma, data, 0, vma_size)) {
+			printk("pmem: mmap failed in kernel!\n");
+			ret = -EAGAIN;
+			goto error;
+		}
+		list_for_each(elt, &data->region_list) {
+			region_node = list_entry(elt, struct pmem_region_node,
+						 list);
+			DLOG("remapping file: %p %lx %lx\n", file,
+				region_node->region.offset,
+				region_node->region.len);
+			if (pmem_remap_pfn_range(id, vma, data,
+						 region_node->region.offset,
+						 region_node->region.len)) {
+				ret = -EAGAIN;
+				goto error;
+			}
+		}
+		data->flags |= PMEM_FLAGS_SUBMAP;
+		get_task_struct(current->group_leader);
+		data->task = current->group_leader;
+		data->vma = vma;
+#if PMEM_DEBUG
+		data->pid = current->pid;
+#endif
+		DLOG("submmapped file %p vma %p pid %u\n", file, vma,
+		     current->pid);
+	} else {
+		if (pmem_map_pfn_range(id, vma, data, 0, vma_size)) {
+			printk(KERN_INFO "pmem: mmap failed in kernel!\n");
+			ret = -EAGAIN;
+			goto error;
+		}
+		data->flags |= PMEM_FLAGS_MASTERMAP;
+		data->pid = current->pid;
+	}
+	vma->vm_ops = &vm_ops;
+error:
+	up_write(&data->sem);
+	return ret;
+}
+
+/* the following are the api for accessing pmem regions by other drivers
+ * from inside the kernel */
+int get_pmem_user_addr(struct file *file, unsigned long *start,
+		   unsigned long *len)
+{
+	struct pmem_data *data;
+	if (!is_pmem_file(file) || !has_allocation(file)) {
+#if PMEM_DEBUG
+		printk(KERN_INFO "pmem: requested pmem data from invalid"
+				  "file.\n");
+#endif
+		return -1;
+	}
+	data = (struct pmem_data *)file->private_data;
+	down_read(&data->sem);
+	if (data->vma) {
+		*start = data->vma->vm_start;
+		*len = data->vma->vm_end - data->vma->vm_start;
+	} else {
+		*start = 0;
+		*len = 0;
+	}
+	up_read(&data->sem);
+	return 0;
+}
+
+int get_pmem_addr(struct file *file, unsigned long *start,
+		  unsigned long *vstart, unsigned long *len)
+{
+	struct pmem_data *data;
+	int id;
+
+	if (!is_pmem_file(file) || !has_allocation(file)) {
+		return -1;
+	}
+
+	data = (struct pmem_data *)file->private_data;
+	if (data->index == -1) {
+#if PMEM_DEBUG
+		printk(KERN_INFO "pmem: requested pmem data from file with no "
+		       "allocation.\n");
+		return -1;
+#endif
+	}
+	id = get_id(file);
+
+	down_read(&data->sem);
+	*start = pmem_start_addr(id, data);
+	*len = pmem_len(id, data);
+	*vstart = (unsigned long)pmem_start_vaddr(id, data);
+	up_read(&data->sem);
+#if PMEM_DEBUG
+	down_write(&data->sem);
+	data->ref++;
+	up_write(&data->sem);
+#endif
+	return 0;
+}
+
+int get_pmem_file(int fd, unsigned long *start, unsigned long *vstart,
+		  unsigned long *len, struct file **filp)
+{
+	struct file *file;
+
+	file = fget(fd);
+	if (unlikely(file == NULL)) {
+		printk(KERN_INFO "pmem: requested data from file descriptor "
+		       "that doesn't exist.");
+		return -1;
+	}
+
+	if (get_pmem_addr(file, start, vstart, len))
+		goto end;
+
+	if (filp)
+		*filp = file;
+	return 0;
+end:
+	fput(file);
+	return -1;
+}
+
+void put_pmem_file(struct file *file)
+{
+	struct pmem_data *data;
+	int id;
+
+	if (!is_pmem_file(file))
+		return;
+	id = get_id(file);
+	data = (struct pmem_data *)file->private_data;
+#if PMEM_DEBUG
+	down_write(&data->sem);
+	if (data->ref == 0) {
+		printk("pmem: pmem_put > pmem_get %s (pid %d)\n",
+		       pmem[id].dev.name, data->pid);
+		BUG();
+	}
+	data->ref--;
+	up_write(&data->sem);
+#endif
+	fput(file);
+}
+
+void flush_pmem_file(struct file *file, unsigned long offset, unsigned long len)
+{
+	struct pmem_data *data;
+	int id;
+	void *vaddr;
+	struct pmem_region_node *region_node;
+	struct list_head *elt;
+	void *flush_start, *flush_end;
+
+	if (!is_pmem_file(file) || !has_allocation(file)) {
+		return;
+	}
+
+	id = get_id(file);
+	data = (struct pmem_data *)file->private_data;
+	if (!pmem[id].cached || file->f_flags & O_SYNC)
+		return;
+
+	down_read(&data->sem);
+	vaddr = pmem_start_vaddr(id, data);
+	/* if this isn't a submmapped file, flush the whole thing */
+	if (unlikely(!(data->flags & PMEM_FLAGS_CONNECTED))) {
+		dmac_flush_range(vaddr, vaddr + pmem_len(id, data));
+		goto end;
+	}
+	/* otherwise, flush the region of the file we are drawing */
+	list_for_each(elt, &data->region_list) {
+		region_node = list_entry(elt, struct pmem_region_node, list);
+		if ((offset >= region_node->region.offset) &&
+		    ((offset + len) <= (region_node->region.offset +
+			region_node->region.len))) {
+			flush_start = vaddr + region_node->region.offset;
+			flush_end = flush_start + region_node->region.len;
+			dmac_flush_range(flush_start, flush_end);
+			break;
+		}
+	}
+end:
+	up_read(&data->sem);
+}
+
+static int pmem_connect(unsigned long connect, struct file *file)
+{
+	struct pmem_data *data = (struct pmem_data *)file->private_data;
+	struct pmem_data *src_data;
+	struct file *src_file;
+	int ret = 0, put_needed;
+
+	down_write(&data->sem);
+	/* retrieve the src file and check it is a pmem file with an alloc */
+	src_file = fget_light(connect, &put_needed);
+	DLOG("connect %p to %p\n", file, src_file);
+	if (!src_file) {
+		printk("pmem: src file not found!\n");
+		ret = -EINVAL;
+		goto err_no_file;
+	}
+	if (unlikely(!is_pmem_file(src_file) || !has_allocation(src_file))) {
+		printk(KERN_INFO "pmem: src file is not a pmem file or has no "
+		       "alloc!\n");
+		ret = -EINVAL;
+		goto err_bad_file;
+	}
+	src_data = (struct pmem_data *)src_file->private_data;
+
+	if (has_allocation(file) && (data->index != src_data->index)) {
+		printk("pmem: file is already mapped but doesn't match this"
+		       " src_file!\n");
+		ret = -EINVAL;
+		goto err_bad_file;
+	}
+	data->index = src_data->index;
+	data->flags |= PMEM_FLAGS_CONNECTED;
+	data->master_fd = connect;
+	data->master_file = src_file;
+
+err_bad_file:
+	fput_light(src_file, put_needed);
+err_no_file:
+	up_write(&data->sem);
+	return ret;
+}
+
+static void pmem_unlock_data_and_mm(struct pmem_data *data,
+				    struct mm_struct *mm)
+{
+	up_write(&data->sem);
+	if (mm != NULL) {
+		up_write(&mm->mmap_sem);
+		mmput(mm);
+	}
+}
+
+static int pmem_lock_data_and_mm(struct file *file, struct pmem_data *data,
+				 struct mm_struct **locked_mm)
+{
+	int ret = 0;
+	struct mm_struct *mm = NULL;
+	*locked_mm = NULL;
+lock_mm:
+	down_read(&data->sem);
+	if (PMEM_IS_SUBMAP(data)) {
+		mm = get_task_mm(data->task);
+		if (!mm) {
+#if PMEM_DEBUG
+			printk("pmem: can't remap task is gone!\n");
+#endif
+			up_read(&data->sem);
+			return -1;
+		}
+	}
+	up_read(&data->sem);
+
+	if (mm)
+		down_write(&mm->mmap_sem);
+
+	down_write(&data->sem);
+	/* check that the file didn't get mmaped before we could take the
+	 * data sem, this should be safe b/c you can only submap each file
+	 * once */
+	if (PMEM_IS_SUBMAP(data) && !mm) {
+		pmem_unlock_data_and_mm(data, mm);
+		up_write(&data->sem);
+		goto lock_mm;
+	}
+	/* now check that vma.mm is still there, it could have been
+	 * deleted by vma_close before we could get the data->sem */
+	if ((data->flags & PMEM_FLAGS_UNSUBMAP) && (mm != NULL)) {
+		/* might as well release this */
+		if (data->flags & PMEM_FLAGS_SUBMAP) {
+			put_task_struct(data->task);
+			data->task = NULL;
+			/* lower the submap flag to show the mm is gone */
+			data->flags &= ~(PMEM_FLAGS_SUBMAP);
+		}
+		pmem_unlock_data_and_mm(data, mm);
+		return -1;
+	}
+	*locked_mm = mm;
+	return ret;
+}
+
+int pmem_remap(struct pmem_region *region, struct file *file,
+		      unsigned operation)
+{
+	int ret;
+	struct pmem_region_node *region_node;
+	struct mm_struct *mm = NULL;
+	struct list_head *elt, *elt2;
+	int id = get_id(file);
+	struct pmem_data *data = (struct pmem_data *)file->private_data;
+
+	/* pmem region must be aligned on a page boundry */
+	if (unlikely(!PMEM_IS_PAGE_ALIGNED(region->offset) ||
+		 !PMEM_IS_PAGE_ALIGNED(region->len))) {
+#if PMEM_DEBUG
+		printk("pmem: request for unaligned pmem suballocation "
+		       "%lx %lx\n", region->offset, region->len);
+#endif
+		return -EINVAL;
+	}
+
+	/* if userspace requests a region of len 0, there's nothing to do */
+	if (region->len == 0)
+		return 0;
+
+	/* lock the mm and data */
+	ret = pmem_lock_data_and_mm(file, data, &mm);
+	if (ret)
+		return 0;
+
+	/* only the owner of the master file can remap the client fds
+	 * that back in it */
+	if (!is_master_owner(file)) {
+#if PMEM_DEBUG
+		printk("pmem: remap requested from non-master process\n");
+#endif
+		ret = -EINVAL;
+		goto err;
+	}
+
+	/* check that the requested range is within the src allocation */
+	if (unlikely((region->offset > pmem_len(id, data)) ||
+		     (region->len > pmem_len(id, data)) ||
+		     (region->offset + region->len > pmem_len(id, data)))) {
+#if PMEM_DEBUG
+		printk(KERN_INFO "pmem: suballoc doesn't fit in src_file!\n");
+#endif
+		ret = -EINVAL;
+		goto err;
+	}
+
+	if (operation == PMEM_MAP) {
+		region_node = kmalloc(sizeof(struct pmem_region_node),
+			      GFP_KERNEL);
+		if (!region_node) {
+			ret = -ENOMEM;
+#if PMEM_DEBUG
+			printk(KERN_INFO "No space to allocate metadata!");
+#endif
+			goto err;
+		}
+		region_node->region = *region;
+		list_add(&region_node->list, &data->region_list);
+	} else if (operation == PMEM_UNMAP) {
+		int found = 0;
+		list_for_each_safe(elt, elt2, &data->region_list) {
+			region_node = list_entry(elt, struct pmem_region_node,
+				      list);
+			if (region->len == 0 ||
+			    (region_node->region.offset == region->offset &&
+			    region_node->region.len == region->len)) {
+				list_del(elt);
+				kfree(region_node);
+				found = 1;
+			}
+		}
+		if (!found) {
+#if PMEM_DEBUG
+			printk("pmem: Unmap region does not map any mapped "
+				"region!");
+#endif
+			ret = -EINVAL;
+			goto err;
+		}
+	}
+
+	if (data->vma && PMEM_IS_SUBMAP(data)) {
+		if (operation == PMEM_MAP)
+			ret = pmem_remap_pfn_range(id, data->vma, data,
+						   region->offset, region->len);
+		else if (operation == PMEM_UNMAP)
+			ret = pmem_unmap_pfn_range(id, data->vma, data,
+						   region->offset, region->len);
+	}
+
+err:
+	pmem_unlock_data_and_mm(data, mm);
+	return ret;
+}
+
+static void pmem_revoke(struct file *file, struct pmem_data *data)
+{
+	struct pmem_region_node *region_node;
+	struct list_head *elt, *elt2;
+	struct mm_struct *mm = NULL;
+	int id = get_id(file);
+	int ret = 0;
+
+	data->master_file = NULL;
+	ret = pmem_lock_data_and_mm(file, data, &mm);
+	/* if lock_data_and_mm fails either the task that mapped the fd, or
+	 * the vma that mapped it have already gone away, nothing more
+	 * needs to be done */
+	if (ret)
+		return;
+	/* unmap everything */
+	/* delete the regions and region list nothing is mapped any more */
+	if (data->vma)
+		list_for_each_safe(elt, elt2, &data->region_list) {
+			region_node = list_entry(elt, struct pmem_region_node,
+						 list);
+			pmem_unmap_pfn_range(id, data->vma, data,
+					     region_node->region.offset,
+					     region_node->region.len);
+			list_del(elt);
+			kfree(region_node);
+	}
+	/* delete the master file */
+	pmem_unlock_data_and_mm(data, mm);
+}
+
+static void pmem_get_size(struct pmem_region *region, struct file *file)
+{
+	struct pmem_data *data = (struct pmem_data *)file->private_data;
+	int id = get_id(file);
+
+	if (!has_allocation(file)) {
+		region->offset = 0;
+		region->len = 0;
+		return;
+	} else {
+		region->offset = pmem_start_addr(id, data);
+		region->len = pmem_len(id, data);
+	}
+	DLOG("offset %lx len %lx\n", region->offset, region->len);
+}
+
+
+static long pmem_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+	struct pmem_data *data;
+	int id = get_id(file);
+
+	switch (cmd) {
+	case PMEM_GET_PHYS:
+		{
+			struct pmem_region region;
+			DLOG("get_phys\n");
+			if (!has_allocation(file)) {
+				region.offset = 0;
+				region.len = 0;
+			} else {
+				data = (struct pmem_data *)file->private_data;
+				region.offset = pmem_start_addr(id, data);
+				region.len = pmem_len(id, data);
+			}
+			printk(KERN_INFO "pmem: request for physical address of pmem region "
+					"from process %d.\n", current->pid);
+			if (copy_to_user((void __user *)arg, &region,
+						sizeof(struct pmem_region)))
+				return -EFAULT;
+			break;
+		}
+	case PMEM_MAP:
+		{
+			struct pmem_region region;
+			if (copy_from_user(&region, (void __user *)arg,
+						sizeof(struct pmem_region)))
+				return -EFAULT;
+			data = (struct pmem_data *)file->private_data;
+			return pmem_remap(&region, file, PMEM_MAP);
+		}
+		break;
+	case PMEM_UNMAP:
+		{
+			struct pmem_region region;
+			if (copy_from_user(&region, (void __user *)arg,
+						sizeof(struct pmem_region)))
+				return -EFAULT;
+			data = (struct pmem_data *)file->private_data;
+			return pmem_remap(&region, file, PMEM_UNMAP);
+			break;
+		}
+	case PMEM_GET_SIZE:
+		{
+			struct pmem_region region;
+			DLOG("get_size\n");
+			pmem_get_size(&region, file);
+			if (copy_to_user((void __user *)arg, &region,
+						sizeof(struct pmem_region)))
+				return -EFAULT;
+			break;
+		}
+	case PMEM_GET_TOTAL_SIZE:
+		{
+			struct pmem_region region;
+			DLOG("get total size\n");
+			region.offset = 0;
+			get_id(file);
+			region.len = pmem[id].size;
+			if (copy_to_user((void __user *)arg, &region,
+						sizeof(struct pmem_region)))
+				return -EFAULT;
+			break;
+		}
+	case PMEM_ALLOCATE:
+		{
+			if (has_allocation(file))
+				return -EINVAL;
+			data = (struct pmem_data *)file->private_data;
+			data->index = pmem_allocate(id, arg);
+			break;
+		}
+	case PMEM_CONNECT:
+		DLOG("connect\n");
+		return pmem_connect(arg, file);
+		break;
+	case PMEM_CACHE_FLUSH:
+		{
+			struct pmem_region region;
+			DLOG("flush\n");
+			if (copy_from_user(&region, (void __user *)arg,
+					   sizeof(struct pmem_region)))
+				return -EFAULT;
+			flush_pmem_file(file, region.offset, region.len);
+			break;
+		}
+	default:
+		if (pmem[id].ioctl)
+			return pmem[id].ioctl(file, cmd, arg);
+		return -EINVAL;
+	}
+	return 0;
+}
+
+#if PMEM_DEBUG
+static ssize_t debug_open(struct inode *inode, struct file *file)
+{
+	file->private_data = inode->i_private;
+	return 0;
+}
+
+static ssize_t debug_read(struct file *file, char __user *buf, size_t count,
+			  loff_t *ppos)
+{
+	struct list_head *elt, *elt2;
+	struct pmem_data *data;
+	struct pmem_region_node *region_node;
+	int id = (int)file->private_data;
+	const int debug_bufmax = 4096;
+	static char buffer[4096];
+	int n = 0;
+
+	DLOG("debug open\n");
+	n = scnprintf(buffer, debug_bufmax,
+		      "pid #: mapped regions (offset, len) (offset,len)...\n");
+
+	mutex_lock(&pmem[id].data_list_lock);
+	list_for_each(elt, &pmem[id].data_list) {
+		data = list_entry(elt, struct pmem_data, list);
+		down_read(&data->sem);
+		n += scnprintf(buffer + n, debug_bufmax - n, "pid %u:",
+				data->pid);
+		list_for_each(elt2, &data->region_list) {
+			region_node = list_entry(elt2, struct pmem_region_node,
+				      list);
+			n += scnprintf(buffer + n, debug_bufmax - n,
+					"(%lx,%lx) ",
+					region_node->region.offset,
+					region_node->region.len);
+		}
+		n += scnprintf(buffer + n, debug_bufmax - n, "\n");
+		up_read(&data->sem);
+	}
+	mutex_unlock(&pmem[id].data_list_lock);
+
+	n++;
+	buffer[n] = 0;
+	return simple_read_from_buffer(buf, count, ppos, buffer, n);
+}
+
+static struct file_operations debug_fops = {
+	.read = debug_read,
+	.open = debug_open,
+};
+#endif
+
+#if 0
+static struct miscdevice pmem_dev = {
+	.name = "pmem",
+	.fops = &pmem_fops,
+};
+#endif
+
+int pmem_setup(struct android_pmem_platform_data *pdata,
+	       long (*ioctl)(struct file *, unsigned int, unsigned long),
+	       int (*release)(struct inode *, struct file *))
+{
+	int err = 0;
+	int i, index = 0;
+	int id = id_count;
+	id_count++;
+
+	pmem[id].no_allocator = pdata->no_allocator;
+	pmem[id].cached = pdata->cached;
+	pmem[id].buffered = pdata->buffered;
+	pmem[id].base = pdata->start;
+	pmem[id].size = pdata->size;
+	pmem[id].ioctl = ioctl;
+	pmem[id].release = release;
+	init_rwsem(&pmem[id].bitmap_sem);
+	mutex_init(&pmem[id].data_list_lock);
+	INIT_LIST_HEAD(&pmem[id].data_list);
+	pmem[id].dev.name = pdata->name;
+	pmem[id].dev.minor = id;
+	pmem[id].dev.fops = &pmem_fops;
+	printk(KERN_INFO "%s: %d init\n", pdata->name, pdata->cached);
+
+	err = misc_register(&pmem[id].dev);
+	if (err) {
+		printk(KERN_ALERT "Unable to register pmem driver!\n");
+		goto err_cant_register_device;
+	}
+	pmem[id].num_entries = pmem[id].size / PMEM_MIN_ALLOC;
+
+	pmem[id].bitmap = kmalloc(pmem[id].num_entries *
+				  sizeof(struct pmem_bits), GFP_KERNEL);
+	if (!pmem[id].bitmap)
+		goto err_no_mem_for_metadata;
+
+	memset(pmem[id].bitmap, 0, sizeof(struct pmem_bits) *
+					  pmem[id].num_entries);
+
+	for (i = sizeof(pmem[id].num_entries) * 8 - 1; i >= 0; i--) {
+		if ((pmem[id].num_entries) &  1<<i) {
+			PMEM_ORDER(id, index) = i;
+			index = PMEM_NEXT_INDEX(id, index);
+		}
+	}
+
+	if (pmem[id].cached)
+		pmem[id].vbase = ioremap_cached(pmem[id].base,
+						pmem[id].size);
+#ifdef ioremap_ext_buffered
+	else if (pmem[id].buffered)
+		pmem[id].vbase = ioremap_ext_buffered(pmem[id].base,
+						      pmem[id].size);
+#endif
+	else
+		pmem[id].vbase = ioremap(pmem[id].base, pmem[id].size);
+
+	if (pmem[id].vbase == 0)
+		goto error_cant_remap;
+
+	pmem[id].garbage_pfn = page_to_pfn(alloc_page(GFP_KERNEL));
+	if (pmem[id].no_allocator)
+		pmem[id].allocated = 0;
+
+#if PMEM_DEBUG
+	debugfs_create_file(pdata->name, S_IFREG | S_IRUGO, NULL, (void *)id,
+			    &debug_fops);
+#endif
+	return 0;
+error_cant_remap:
+	kfree(pmem[id].bitmap);
+err_no_mem_for_metadata:
+	misc_deregister(&pmem[id].dev);
+err_cant_register_device:
+	return -1;
+}
+
+static int pmem_probe(struct platform_device *pdev)
+{
+	struct android_pmem_platform_data *pdata;
+
+	if (!pdev || !pdev->dev.platform_data) {
+		printk(KERN_ALERT "Unable to probe pmem!\n");
+		return -1;
+	}
+	pdata = pdev->dev.platform_data;
+	return pmem_setup(pdata, NULL, NULL);
+}
+
+
+static int pmem_remove(struct platform_device *pdev)
+{
+	int id = pdev->id;
+	__free_page(pfn_to_page(pmem[id].garbage_pfn));
+	misc_deregister(&pmem[id].dev);
+	return 0;
+}
+
+static struct platform_driver pmem_driver = {
+	.probe = pmem_probe,
+	.remove = pmem_remove,
+	.driver = { .name = "android_pmem" }
+};
+
+
+static int __init pmem_init(void)
+{
+	return platform_driver_register(&pmem_driver);
+}
+
+static void __exit pmem_exit(void)
+{
+	platform_driver_unregister(&pmem_driver);
+}
+
+module_init(pmem_init);
+module_exit(pmem_exit);
+
diff --git a/drivers/staging/android/ram_console.c b/drivers/staging/android/ram_console.c
new file mode 100644
index 000000000000..6d4d67924f22
--- /dev/null
+++ b/drivers/staging/android/ram_console.c
@@ -0,0 +1,443 @@
+/* drivers/android/ram_console.c
+ *
+ * Copyright (C) 2007-2008 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/console.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/proc_fs.h>
+#include <linux/string.h>
+#include <linux/uaccess.h>
+#include <linux/io.h>
+#include "ram_console.h"
+
+#ifdef CONFIG_ANDROID_RAM_CONSOLE_ERROR_CORRECTION
+#include <linux/rslib.h>
+#endif
+
+struct ram_console_buffer {
+	uint32_t    sig;
+	uint32_t    start;
+	uint32_t    size;
+	uint8_t     data[0];
+};
+
+#define RAM_CONSOLE_SIG (0x43474244) /* DBGC */
+
+#ifdef CONFIG_ANDROID_RAM_CONSOLE_EARLY_INIT
+static char __initdata
+	ram_console_old_log_init_buffer[CONFIG_ANDROID_RAM_CONSOLE_EARLY_SIZE];
+#endif
+static char *ram_console_old_log;
+static size_t ram_console_old_log_size;
+
+static struct ram_console_buffer *ram_console_buffer;
+static size_t ram_console_buffer_size;
+#ifdef CONFIG_ANDROID_RAM_CONSOLE_ERROR_CORRECTION
+static char *ram_console_par_buffer;
+static struct rs_control *ram_console_rs_decoder;
+static int ram_console_corrected_bytes;
+static int ram_console_bad_blocks;
+#define ECC_BLOCK_SIZE CONFIG_ANDROID_RAM_CONSOLE_ERROR_CORRECTION_DATA_SIZE
+#define ECC_SIZE CONFIG_ANDROID_RAM_CONSOLE_ERROR_CORRECTION_ECC_SIZE
+#define ECC_SYMSIZE CONFIG_ANDROID_RAM_CONSOLE_ERROR_CORRECTION_SYMBOL_SIZE
+#define ECC_POLY CONFIG_ANDROID_RAM_CONSOLE_ERROR_CORRECTION_POLYNOMIAL
+#endif
+
+#ifdef CONFIG_ANDROID_RAM_CONSOLE_ERROR_CORRECTION
+static void ram_console_encode_rs8(uint8_t *data, size_t len, uint8_t *ecc)
+{
+	int i;
+	uint16_t par[ECC_SIZE];
+	/* Initialize the parity buffer */
+	memset(par, 0, sizeof(par));
+	encode_rs8(ram_console_rs_decoder, data, len, par, 0);
+	for (i = 0; i < ECC_SIZE; i++)
+		ecc[i] = par[i];
+}
+
+static int ram_console_decode_rs8(void *data, size_t len, uint8_t *ecc)
+{
+	int i;
+	uint16_t par[ECC_SIZE];
+	for (i = 0; i < ECC_SIZE; i++)
+		par[i] = ecc[i];
+	return decode_rs8(ram_console_rs_decoder, data, par, len,
+				NULL, 0, NULL, 0, NULL);
+}
+#endif
+
+static void ram_console_update(const char *s, unsigned int count)
+{
+	struct ram_console_buffer *buffer = ram_console_buffer;
+#ifdef CONFIG_ANDROID_RAM_CONSOLE_ERROR_CORRECTION
+	uint8_t *buffer_end = buffer->data + ram_console_buffer_size;
+	uint8_t *block;
+	uint8_t *par;
+	int size = ECC_BLOCK_SIZE;
+#endif
+	memcpy(buffer->data + buffer->start, s, count);
+#ifdef CONFIG_ANDROID_RAM_CONSOLE_ERROR_CORRECTION
+	block = buffer->data + (buffer->start & ~(ECC_BLOCK_SIZE - 1));
+	par = ram_console_par_buffer +
+	      (buffer->start / ECC_BLOCK_SIZE) * ECC_SIZE;
+	do {
+		if (block + ECC_BLOCK_SIZE > buffer_end)
+			size = buffer_end - block;
+		ram_console_encode_rs8(block, size, par);
+		block += ECC_BLOCK_SIZE;
+		par += ECC_SIZE;
+	} while (block < buffer->data + buffer->start + count);
+#endif
+}
+
+static void ram_console_update_header(void)
+{
+#ifdef CONFIG_ANDROID_RAM_CONSOLE_ERROR_CORRECTION
+	struct ram_console_buffer *buffer = ram_console_buffer;
+	uint8_t *par;
+	par = ram_console_par_buffer +
+	      DIV_ROUND_UP(ram_console_buffer_size, ECC_BLOCK_SIZE) * ECC_SIZE;
+	ram_console_encode_rs8((uint8_t *)buffer, sizeof(*buffer), par);
+#endif
+}
+
+static void
+ram_console_write(struct console *console, const char *s, unsigned int count)
+{
+	int rem;
+	struct ram_console_buffer *buffer = ram_console_buffer;
+
+	if (count > ram_console_buffer_size) {
+		s += count - ram_console_buffer_size;
+		count = ram_console_buffer_size;
+	}
+	rem = ram_console_buffer_size - buffer->start;
+	if (rem < count) {
+		ram_console_update(s, rem);
+		s += rem;
+		count -= rem;
+		buffer->start = 0;
+		buffer->size = ram_console_buffer_size;
+	}
+	ram_console_update(s, count);
+
+	buffer->start += count;
+	if (buffer->size < ram_console_buffer_size)
+		buffer->size += count;
+	ram_console_update_header();
+}
+
+static struct console ram_console = {
+	.name	= "ram",
+	.write	= ram_console_write,
+	.flags	= CON_PRINTBUFFER | CON_ENABLED,
+	.index	= -1,
+};
+
+void ram_console_enable_console(int enabled)
+{
+	if (enabled)
+		ram_console.flags |= CON_ENABLED;
+	else
+		ram_console.flags &= ~CON_ENABLED;
+}
+
+static void __init
+ram_console_save_old(struct ram_console_buffer *buffer, const char *bootinfo,
+	char *dest)
+{
+	size_t old_log_size = buffer->size;
+	size_t bootinfo_size = 0;
+	size_t total_size = old_log_size;
+	char *ptr;
+	const char *bootinfo_label = "Boot info:\n";
+
+#ifdef CONFIG_ANDROID_RAM_CONSOLE_ERROR_CORRECTION
+	uint8_t *block;
+	uint8_t *par;
+	char strbuf[80];
+	int strbuf_len = 0;
+
+	block = buffer->data;
+	par = ram_console_par_buffer;
+	while (block < buffer->data + buffer->size) {
+		int numerr;
+		int size = ECC_BLOCK_SIZE;
+		if (block + size > buffer->data + ram_console_buffer_size)
+			size = buffer->data + ram_console_buffer_size - block;
+		numerr = ram_console_decode_rs8(block, size, par);
+		if (numerr > 0) {
+#if 0
+			printk(KERN_INFO "ram_console: error in block %p, %d\n",
+			       block, numerr);
+#endif
+			ram_console_corrected_bytes += numerr;
+		} else if (numerr < 0) {
+#if 0
+			printk(KERN_INFO "ram_console: uncorrectable error in "
+			       "block %p\n", block);
+#endif
+			ram_console_bad_blocks++;
+		}
+		block += ECC_BLOCK_SIZE;
+		par += ECC_SIZE;
+	}
+	if (ram_console_corrected_bytes || ram_console_bad_blocks)
+		strbuf_len = snprintf(strbuf, sizeof(strbuf),
+			"\n%d Corrected bytes, %d unrecoverable blocks\n",
+			ram_console_corrected_bytes, ram_console_bad_blocks);
+	else
+		strbuf_len = snprintf(strbuf, sizeof(strbuf),
+				      "\nNo errors detected\n");
+	if (strbuf_len >= sizeof(strbuf))
+		strbuf_len = sizeof(strbuf) - 1;
+	total_size += strbuf_len;
+#endif
+
+	if (bootinfo)
+		bootinfo_size = strlen(bootinfo) + strlen(bootinfo_label);
+	total_size += bootinfo_size;
+
+	if (dest == NULL) {
+		dest = kmalloc(total_size, GFP_KERNEL);
+		if (dest == NULL) {
+			printk(KERN_ERR
+			       "ram_console: failed to allocate buffer\n");
+			return;
+		}
+	}
+
+	ram_console_old_log = dest;
+	ram_console_old_log_size = total_size;
+	memcpy(ram_console_old_log,
+	       &buffer->data[buffer->start], buffer->size - buffer->start);
+	memcpy(ram_console_old_log + buffer->size - buffer->start,
+	       &buffer->data[0], buffer->start);
+	ptr = ram_console_old_log + old_log_size;
+#ifdef CONFIG_ANDROID_RAM_CONSOLE_ERROR_CORRECTION
+	memcpy(ptr, strbuf, strbuf_len);
+	ptr += strbuf_len;
+#endif
+	if (bootinfo) {
+		memcpy(ptr, bootinfo_label, strlen(bootinfo_label));
+		ptr += strlen(bootinfo_label);
+		memcpy(ptr, bootinfo, bootinfo_size);
+		ptr += bootinfo_size;
+	}
+}
+
+static int __init ram_console_init(struct ram_console_buffer *buffer,
+				   size_t buffer_size, const char *bootinfo,
+				   char *old_buf)
+{
+#ifdef CONFIG_ANDROID_RAM_CONSOLE_ERROR_CORRECTION
+	int numerr;
+	uint8_t *par;
+#endif
+	ram_console_buffer = buffer;
+	ram_console_buffer_size =
+		buffer_size - sizeof(struct ram_console_buffer);
+
+	if (ram_console_buffer_size > buffer_size) {
+		pr_err("ram_console: buffer %p, invalid size %zu, "
+		       "datasize %zu\n", buffer, buffer_size,
+		       ram_console_buffer_size);
+		return 0;
+	}
+
+#ifdef CONFIG_ANDROID_RAM_CONSOLE_ERROR_CORRECTION
+	ram_console_buffer_size -= (DIV_ROUND_UP(ram_console_buffer_size,
+						ECC_BLOCK_SIZE) + 1) * ECC_SIZE;
+
+	if (ram_console_buffer_size > buffer_size) {
+		pr_err("ram_console: buffer %p, invalid size %zu, "
+		       "non-ecc datasize %zu\n",
+		       buffer, buffer_size, ram_console_buffer_size);
+		return 0;
+	}
+
+	ram_console_par_buffer = buffer->data + ram_console_buffer_size;
+
+
+	/* first consecutive root is 0
+	 * primitive element to generate roots = 1
+	 */
+	ram_console_rs_decoder = init_rs(ECC_SYMSIZE, ECC_POLY, 0, 1, ECC_SIZE);
+	if (ram_console_rs_decoder == NULL) {
+		printk(KERN_INFO "ram_console: init_rs failed\n");
+		return 0;
+	}
+
+	ram_console_corrected_bytes = 0;
+	ram_console_bad_blocks = 0;
+
+	par = ram_console_par_buffer +
+	      DIV_ROUND_UP(ram_console_buffer_size, ECC_BLOCK_SIZE) * ECC_SIZE;
+
+	numerr = ram_console_decode_rs8(buffer, sizeof(*buffer), par);
+	if (numerr > 0) {
+		printk(KERN_INFO "ram_console: error in header, %d\n", numerr);
+		ram_console_corrected_bytes += numerr;
+	} else if (numerr < 0) {
+		printk(KERN_INFO
+		       "ram_console: uncorrectable error in header\n");
+		ram_console_bad_blocks++;
+	}
+#endif
+
+	if (buffer->sig == RAM_CONSOLE_SIG) {
+		if (buffer->size > ram_console_buffer_size
+		    || buffer->start > buffer->size)
+			printk(KERN_INFO "ram_console: found existing invalid "
+			       "buffer, size %d, start %d\n",
+			       buffer->size, buffer->start);
+		else {
+			printk(KERN_INFO "ram_console: found existing buffer, "
+			       "size %d, start %d\n",
+			       buffer->size, buffer->start);
+			ram_console_save_old(buffer, bootinfo, old_buf);
+		}
+	} else {
+		printk(KERN_INFO "ram_console: no valid data in buffer "
+		       "(sig = 0x%08x)\n", buffer->sig);
+	}
+
+	buffer->sig = RAM_CONSOLE_SIG;
+	buffer->start = 0;
+	buffer->size = 0;
+
+	register_console(&ram_console);
+#ifdef CONFIG_ANDROID_RAM_CONSOLE_ENABLE_VERBOSE
+	console_verbose();
+#endif
+	return 0;
+}
+
+#ifdef CONFIG_ANDROID_RAM_CONSOLE_EARLY_INIT
+static int __init ram_console_early_init(void)
+{
+	return ram_console_init((struct ram_console_buffer *)
+		CONFIG_ANDROID_RAM_CONSOLE_EARLY_ADDR,
+		CONFIG_ANDROID_RAM_CONSOLE_EARLY_SIZE,
+		NULL,
+		ram_console_old_log_init_buffer);
+}
+#else
+static int ram_console_driver_probe(struct platform_device *pdev)
+{
+	struct resource *res = pdev->resource;
+	size_t start;
+	size_t buffer_size;
+	void *buffer;
+	const char *bootinfo = NULL;
+	struct ram_console_platform_data *pdata = pdev->dev.platform_data;
+
+	if (res == NULL || pdev->num_resources != 1 ||
+	    !(res->flags & IORESOURCE_MEM)) {
+		printk(KERN_ERR "ram_console: invalid resource, %p %d flags "
+		       "%lx\n", res, pdev->num_resources, res ? res->flags : 0);
+		return -ENXIO;
+	}
+	buffer_size = res->end - res->start + 1;
+	start = res->start;
+	printk(KERN_INFO "ram_console: got buffer at %zx, size %zx\n",
+	       start, buffer_size);
+	buffer = ioremap(res->start, buffer_size);
+	if (buffer == NULL) {
+		printk(KERN_ERR "ram_console: failed to map memory\n");
+		return -ENOMEM;
+	}
+
+	if (pdata)
+		bootinfo = pdata->bootinfo;
+
+	return ram_console_init(buffer, buffer_size, bootinfo, NULL/* allocate */);
+}
+
+static struct platform_driver ram_console_driver = {
+	.probe = ram_console_driver_probe,
+	.driver		= {
+		.name	= "ram_console",
+	},
+};
+
+static int __init ram_console_module_init(void)
+{
+	int err;
+	err = platform_driver_register(&ram_console_driver);
+	return err;
+}
+#endif
+
+static ssize_t ram_console_read_old(struct file *file, char __user *buf,
+				    size_t len, loff_t *offset)
+{
+	loff_t pos = *offset;
+	ssize_t count;
+
+	if (pos >= ram_console_old_log_size)
+		return 0;
+
+	count = min(len, (size_t)(ram_console_old_log_size - pos));
+	if (copy_to_user(buf, ram_console_old_log + pos, count))
+		return -EFAULT;
+
+	*offset += count;
+	return count;
+}
+
+static const struct file_operations ram_console_file_ops = {
+	.owner = THIS_MODULE,
+	.read = ram_console_read_old,
+};
+
+static int __init ram_console_late_init(void)
+{
+	struct proc_dir_entry *entry;
+
+	if (ram_console_old_log == NULL)
+		return 0;
+#ifdef CONFIG_ANDROID_RAM_CONSOLE_EARLY_INIT
+	ram_console_old_log = kmalloc(ram_console_old_log_size, GFP_KERNEL);
+	if (ram_console_old_log == NULL) {
+		printk(KERN_ERR
+		       "ram_console: failed to allocate buffer for old log\n");
+		ram_console_old_log_size = 0;
+		return 0;
+	}
+	memcpy(ram_console_old_log,
+	       ram_console_old_log_init_buffer, ram_console_old_log_size);
+#endif
+	entry = create_proc_entry("last_kmsg", S_IFREG | S_IRUGO, NULL);
+	if (!entry) {
+		printk(KERN_ERR "ram_console: failed to create proc entry\n");
+		kfree(ram_console_old_log);
+		ram_console_old_log = NULL;
+		return 0;
+	}
+
+	entry->proc_fops = &ram_console_file_ops;
+	entry->size = ram_console_old_log_size;
+	return 0;
+}
+
+#ifdef CONFIG_ANDROID_RAM_CONSOLE_EARLY_INIT
+console_initcall(ram_console_early_init);
+#else
+postcore_initcall(ram_console_module_init);
+#endif
+late_initcall(ram_console_late_init);
+
diff --git a/drivers/staging/android/ram_console.h b/drivers/staging/android/ram_console.h
new file mode 100644
index 000000000000..9f1125c11066
--- /dev/null
+++ b/drivers/staging/android/ram_console.h
@@ -0,0 +1,22 @@
+/*
+ * Copyright (C) 2010 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef _INCLUDE_LINUX_PLATFORM_DATA_RAM_CONSOLE_H_
+#define _INCLUDE_LINUX_PLATFORM_DATA_RAM_CONSOLE_H_
+
+struct ram_console_platform_data {
+	const char *bootinfo;
+};
+
+#endif /* _INCLUDE_LINUX_PLATFORM_DATA_RAM_CONSOLE_H_ */
diff --git a/drivers/staging/android/switch/Kconfig b/drivers/staging/android/switch/Kconfig
new file mode 100644
index 000000000000..36846f62f4bc
--- /dev/null
+++ b/drivers/staging/android/switch/Kconfig
@@ -0,0 +1,11 @@
+menuconfig ANDROID_SWITCH
+	tristate "Android Switch class support"
+	help
+	  Say Y here to enable Android switch class support. This allows
+	  monitoring switches by userspace via sysfs and uevent.
+
+config ANDROID_SWITCH_GPIO
+	tristate "Android GPIO Switch support"
+	depends on GENERIC_GPIO && ANDROID_SWITCH
+	help
+	  Say Y here to enable GPIO based switch support.
diff --git a/drivers/staging/android/switch/Makefile b/drivers/staging/android/switch/Makefile
new file mode 100644
index 000000000000..d76bfdcedfaf
--- /dev/null
+++ b/drivers/staging/android/switch/Makefile
@@ -0,0 +1,4 @@
+# Android Switch Class Driver
+obj-$(CONFIG_ANDROID_SWITCH)		+= switch_class.o
+obj-$(CONFIG_ANDROID_SWITCH_GPIO)	+= switch_gpio.o
+
diff --git a/drivers/staging/android/switch/switch.h b/drivers/staging/android/switch/switch.h
new file mode 100644
index 000000000000..4fcb3109875a
--- /dev/null
+++ b/drivers/staging/android/switch/switch.h
@@ -0,0 +1,53 @@
+/*
+ *  Switch class driver
+ *
+ * Copyright (C) 2008 Google, Inc.
+ * Author: Mike Lockwood <lockwood@android.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+*/
+
+#ifndef __LINUX_SWITCH_H__
+#define __LINUX_SWITCH_H__
+
+struct switch_dev {
+	const char	*name;
+	struct device	*dev;
+	int		index;
+	int		state;
+
+	ssize_t	(*print_name)(struct switch_dev *sdev, char *buf);
+	ssize_t	(*print_state)(struct switch_dev *sdev, char *buf);
+};
+
+struct gpio_switch_platform_data {
+	const char *name;
+	unsigned	gpio;
+
+	/* if NULL, switch_dev.name will be printed */
+	const char *name_on;
+	const char *name_off;
+	/* if NULL, "0" or "1" will be printed */
+	const char *state_on;
+	const char *state_off;
+};
+
+extern int switch_dev_register(struct switch_dev *sdev);
+extern void switch_dev_unregister(struct switch_dev *sdev);
+
+static inline int switch_get_state(struct switch_dev *sdev)
+{
+	return sdev->state;
+}
+
+extern void switch_set_state(struct switch_dev *sdev, int state);
+
+#endif /* __LINUX_SWITCH_H__ */
diff --git a/drivers/staging/android/switch/switch_class.c b/drivers/staging/android/switch/switch_class.c
new file mode 100644
index 000000000000..74680446fc66
--- /dev/null
+++ b/drivers/staging/android/switch/switch_class.c
@@ -0,0 +1,174 @@
+/*
+ * switch_class.c
+ *
+ * Copyright (C) 2008 Google, Inc.
+ * Author: Mike Lockwood <lockwood@android.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+*/
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/init.h>
+#include <linux/device.h>
+#include <linux/fs.h>
+#include <linux/err.h>
+#include "switch.h"
+
+struct class *switch_class;
+static atomic_t device_count;
+
+static ssize_t state_show(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct switch_dev *sdev = (struct switch_dev *)
+		dev_get_drvdata(dev);
+
+	if (sdev->print_state) {
+		int ret = sdev->print_state(sdev, buf);
+		if (ret >= 0)
+			return ret;
+	}
+	return sprintf(buf, "%d\n", sdev->state);
+}
+
+static ssize_t name_show(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct switch_dev *sdev = (struct switch_dev *)
+		dev_get_drvdata(dev);
+
+	if (sdev->print_name) {
+		int ret = sdev->print_name(sdev, buf);
+		if (ret >= 0)
+			return ret;
+	}
+	return sprintf(buf, "%s\n", sdev->name);
+}
+
+static DEVICE_ATTR(state, S_IRUGO | S_IWUSR, state_show, NULL);
+static DEVICE_ATTR(name, S_IRUGO | S_IWUSR, name_show, NULL);
+
+void switch_set_state(struct switch_dev *sdev, int state)
+{
+	char name_buf[120];
+	char state_buf[120];
+	char *prop_buf;
+	char *envp[3];
+	int env_offset = 0;
+	int length;
+
+	if (sdev->state != state) {
+		sdev->state = state;
+
+		prop_buf = (char *)get_zeroed_page(GFP_KERNEL);
+		if (prop_buf) {
+			length = name_show(sdev->dev, NULL, prop_buf);
+			if (length > 0) {
+				if (prop_buf[length - 1] == '\n')
+					prop_buf[length - 1] = 0;
+				snprintf(name_buf, sizeof(name_buf),
+					"SWITCH_NAME=%s", prop_buf);
+				envp[env_offset++] = name_buf;
+			}
+			length = state_show(sdev->dev, NULL, prop_buf);
+			if (length > 0) {
+				if (prop_buf[length - 1] == '\n')
+					prop_buf[length - 1] = 0;
+				snprintf(state_buf, sizeof(state_buf),
+					"SWITCH_STATE=%s", prop_buf);
+				envp[env_offset++] = state_buf;
+			}
+			envp[env_offset] = NULL;
+			kobject_uevent_env(&sdev->dev->kobj, KOBJ_CHANGE, envp);
+			free_page((unsigned long)prop_buf);
+		} else {
+			printk(KERN_ERR "out of memory in switch_set_state\n");
+			kobject_uevent(&sdev->dev->kobj, KOBJ_CHANGE);
+		}
+	}
+}
+EXPORT_SYMBOL_GPL(switch_set_state);
+
+static int create_switch_class(void)
+{
+	if (!switch_class) {
+		switch_class = class_create(THIS_MODULE, "switch");
+		if (IS_ERR(switch_class))
+			return PTR_ERR(switch_class);
+		atomic_set(&device_count, 0);
+	}
+
+	return 0;
+}
+
+int switch_dev_register(struct switch_dev *sdev)
+{
+	int ret;
+
+	if (!switch_class) {
+		ret = create_switch_class();
+		if (ret < 0)
+			return ret;
+	}
+
+	sdev->index = atomic_inc_return(&device_count);
+	sdev->dev = device_create(switch_class, NULL,
+		MKDEV(0, sdev->index), NULL, sdev->name);
+	if (IS_ERR(sdev->dev))
+		return PTR_ERR(sdev->dev);
+
+	ret = device_create_file(sdev->dev, &dev_attr_state);
+	if (ret < 0)
+		goto err_create_file_1;
+	ret = device_create_file(sdev->dev, &dev_attr_name);
+	if (ret < 0)
+		goto err_create_file_2;
+
+	dev_set_drvdata(sdev->dev, sdev);
+	sdev->state = 0;
+	return 0;
+
+err_create_file_2:
+	device_remove_file(sdev->dev, &dev_attr_state);
+err_create_file_1:
+	device_destroy(switch_class, MKDEV(0, sdev->index));
+	printk(KERN_ERR "switch: Failed to register driver %s\n", sdev->name);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(switch_dev_register);
+
+void switch_dev_unregister(struct switch_dev *sdev)
+{
+	device_remove_file(sdev->dev, &dev_attr_name);
+	device_remove_file(sdev->dev, &dev_attr_state);
+	device_destroy(switch_class, MKDEV(0, sdev->index));
+	dev_set_drvdata(sdev->dev, NULL);
+}
+EXPORT_SYMBOL_GPL(switch_dev_unregister);
+
+static int __init switch_class_init(void)
+{
+	return create_switch_class();
+}
+
+static void __exit switch_class_exit(void)
+{
+	class_destroy(switch_class);
+}
+
+module_init(switch_class_init);
+module_exit(switch_class_exit);
+
+MODULE_AUTHOR("Mike Lockwood <lockwood@android.com>");
+MODULE_DESCRIPTION("Switch class driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/android/switch/switch_gpio.c b/drivers/staging/android/switch/switch_gpio.c
new file mode 100644
index 000000000000..38b2c2f6004e
--- /dev/null
+++ b/drivers/staging/android/switch/switch_gpio.c
@@ -0,0 +1,172 @@
+/*
+ * switch_gpio.c
+ *
+ * Copyright (C) 2008 Google, Inc.
+ * Author: Mike Lockwood <lockwood@android.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+*/
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/interrupt.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/workqueue.h>
+#include <linux/gpio.h>
+#include "switch.h"
+
+struct gpio_switch_data {
+	struct switch_dev sdev;
+	unsigned gpio;
+	const char *name_on;
+	const char *name_off;
+	const char *state_on;
+	const char *state_off;
+	int irq;
+	struct work_struct work;
+};
+
+static void gpio_switch_work(struct work_struct *work)
+{
+	int state;
+	struct gpio_switch_data	*data =
+		container_of(work, struct gpio_switch_data, work);
+
+	state = gpio_get_value(data->gpio);
+	switch_set_state(&data->sdev, state);
+}
+
+static irqreturn_t gpio_irq_handler(int irq, void *dev_id)
+{
+	struct gpio_switch_data *switch_data =
+	    (struct gpio_switch_data *)dev_id;
+
+	schedule_work(&switch_data->work);
+	return IRQ_HANDLED;
+}
+
+static ssize_t switch_gpio_print_state(struct switch_dev *sdev, char *buf)
+{
+	struct gpio_switch_data	*switch_data =
+		container_of(sdev, struct gpio_switch_data, sdev);
+	const char *state;
+	if (switch_get_state(sdev))
+		state = switch_data->state_on;
+	else
+		state = switch_data->state_off;
+
+	if (state)
+		return sprintf(buf, "%s\n", state);
+	return -1;
+}
+
+static int gpio_switch_probe(struct platform_device *pdev)
+{
+	struct gpio_switch_platform_data *pdata = pdev->dev.platform_data;
+	struct gpio_switch_data *switch_data;
+	int ret = 0;
+
+	if (!pdata)
+		return -EBUSY;
+
+	switch_data = kzalloc(sizeof(struct gpio_switch_data), GFP_KERNEL);
+	if (!switch_data)
+		return -ENOMEM;
+
+	switch_data->sdev.name = pdata->name;
+	switch_data->gpio = pdata->gpio;
+	switch_data->name_on = pdata->name_on;
+	switch_data->name_off = pdata->name_off;
+	switch_data->state_on = pdata->state_on;
+	switch_data->state_off = pdata->state_off;
+	switch_data->sdev.print_state = switch_gpio_print_state;
+
+	ret = switch_dev_register(&switch_data->sdev);
+	if (ret < 0)
+		goto err_switch_dev_register;
+
+	ret = gpio_request(switch_data->gpio, pdev->name);
+	if (ret < 0)
+		goto err_request_gpio;
+
+	ret = gpio_direction_input(switch_data->gpio);
+	if (ret < 0)
+		goto err_set_gpio_input;
+
+	INIT_WORK(&switch_data->work, gpio_switch_work);
+
+	switch_data->irq = gpio_to_irq(switch_data->gpio);
+	if (switch_data->irq < 0) {
+		ret = switch_data->irq;
+		goto err_detect_irq_num_failed;
+	}
+
+	ret = request_irq(switch_data->irq, gpio_irq_handler,
+			  IRQF_TRIGGER_LOW, pdev->name, switch_data);
+	if (ret < 0)
+		goto err_request_irq;
+
+	/* Perform initial detection */
+	gpio_switch_work(&switch_data->work);
+
+	return 0;
+
+err_request_irq:
+err_detect_irq_num_failed:
+err_set_gpio_input:
+	gpio_free(switch_data->gpio);
+err_request_gpio:
+	switch_dev_unregister(&switch_data->sdev);
+err_switch_dev_register:
+	kfree(switch_data);
+
+	return ret;
+}
+
+static int __devexit gpio_switch_remove(struct platform_device *pdev)
+{
+	struct gpio_switch_data *switch_data = platform_get_drvdata(pdev);
+
+	cancel_work_sync(&switch_data->work);
+	gpio_free(switch_data->gpio);
+	switch_dev_unregister(&switch_data->sdev);
+	kfree(switch_data);
+
+	return 0;
+}
+
+static struct platform_driver gpio_switch_driver = {
+	.probe		= gpio_switch_probe,
+	.remove		= __devexit_p(gpio_switch_remove),
+	.driver		= {
+		.name	= "switch-gpio",
+		.owner	= THIS_MODULE,
+	},
+};
+
+static int __init gpio_switch_init(void)
+{
+	return platform_driver_register(&gpio_switch_driver);
+}
+
+static void __exit gpio_switch_exit(void)
+{
+	platform_driver_unregister(&gpio_switch_driver);
+}
+
+module_init(gpio_switch_init);
+module_exit(gpio_switch_exit);
+
+MODULE_AUTHOR("Mike Lockwood <lockwood@android.com>");
+MODULE_DESCRIPTION("GPIO Switch driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/android/timed_gpio.c b/drivers/staging/android/timed_gpio.c
new file mode 100644
index 000000000000..a64481c3e86d
--- /dev/null
+++ b/drivers/staging/android/timed_gpio.c
@@ -0,0 +1,176 @@
+/* drivers/misc/timed_gpio.c
+ *
+ * Copyright (C) 2008 Google, Inc.
+ * Author: Mike Lockwood <lockwood@android.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/hrtimer.h>
+#include <linux/err.h>
+#include <linux/gpio.h>
+
+#include "timed_output.h"
+#include "timed_gpio.h"
+
+
+struct timed_gpio_data {
+	struct timed_output_dev dev;
+	struct hrtimer timer;
+	spinlock_t lock;
+	unsigned 	gpio;
+	int 		max_timeout;
+	u8 		active_low;
+};
+
+static enum hrtimer_restart gpio_timer_func(struct hrtimer *timer)
+{
+	struct timed_gpio_data *data =
+		container_of(timer, struct timed_gpio_data, timer);
+
+	gpio_direction_output(data->gpio, data->active_low ? 1 : 0);
+	return HRTIMER_NORESTART;
+}
+
+static int gpio_get_time(struct timed_output_dev *dev)
+{
+	struct timed_gpio_data	*data =
+		container_of(dev, struct timed_gpio_data, dev);
+
+	if (hrtimer_active(&data->timer)) {
+		ktime_t r = hrtimer_get_remaining(&data->timer);
+		struct timeval t = ktime_to_timeval(r);
+		return t.tv_sec * 1000 + t.tv_usec / 1000;
+	} else
+		return 0;
+}
+
+static void gpio_enable(struct timed_output_dev *dev, int value)
+{
+	struct timed_gpio_data	*data =
+		container_of(dev, struct timed_gpio_data, dev);
+	unsigned long	flags;
+
+	spin_lock_irqsave(&data->lock, flags);
+
+	/* cancel previous timer and set GPIO according to value */
+	hrtimer_cancel(&data->timer);
+	gpio_direction_output(data->gpio, data->active_low ? !value : !!value);
+
+	if (value > 0) {
+		if (value > data->max_timeout)
+			value = data->max_timeout;
+
+		hrtimer_start(&data->timer,
+			ktime_set(value / 1000, (value % 1000) * 1000000),
+			HRTIMER_MODE_REL);
+	}
+
+	spin_unlock_irqrestore(&data->lock, flags);
+}
+
+static int timed_gpio_probe(struct platform_device *pdev)
+{
+	struct timed_gpio_platform_data *pdata = pdev->dev.platform_data;
+	struct timed_gpio *cur_gpio;
+	struct timed_gpio_data *gpio_data, *gpio_dat;
+	int i, j, ret = 0;
+
+	if (!pdata)
+		return -EBUSY;
+
+	gpio_data = kzalloc(sizeof(struct timed_gpio_data) * pdata->num_gpios,
+			GFP_KERNEL);
+	if (!gpio_data)
+		return -ENOMEM;
+
+	for (i = 0; i < pdata->num_gpios; i++) {
+		cur_gpio = &pdata->gpios[i];
+		gpio_dat = &gpio_data[i];
+
+		hrtimer_init(&gpio_dat->timer, CLOCK_MONOTONIC,
+				HRTIMER_MODE_REL);
+		gpio_dat->timer.function = gpio_timer_func;
+		spin_lock_init(&gpio_dat->lock);
+
+		gpio_dat->dev.name = cur_gpio->name;
+		gpio_dat->dev.get_time = gpio_get_time;
+		gpio_dat->dev.enable = gpio_enable;
+		ret = gpio_request(cur_gpio->gpio, cur_gpio->name);
+		if (ret >= 0) {
+			ret = timed_output_dev_register(&gpio_dat->dev);
+			if (ret < 0)
+				gpio_free(cur_gpio->gpio);
+		}
+		if (ret < 0) {
+			for (j = 0; j < i; j++) {
+				timed_output_dev_unregister(&gpio_data[i].dev);
+				gpio_free(gpio_data[i].gpio);
+			}
+			kfree(gpio_data);
+			return ret;
+		}
+
+		gpio_dat->gpio = cur_gpio->gpio;
+		gpio_dat->max_timeout = cur_gpio->max_timeout;
+		gpio_dat->active_low = cur_gpio->active_low;
+		gpio_direction_output(gpio_dat->gpio, gpio_dat->active_low);
+	}
+
+	platform_set_drvdata(pdev, gpio_data);
+
+	return 0;
+}
+
+static int timed_gpio_remove(struct platform_device *pdev)
+{
+	struct timed_gpio_platform_data *pdata = pdev->dev.platform_data;
+	struct timed_gpio_data *gpio_data = platform_get_drvdata(pdev);
+	int i;
+
+	for (i = 0; i < pdata->num_gpios; i++) {
+		timed_output_dev_unregister(&gpio_data[i].dev);
+		gpio_free(gpio_data[i].gpio);
+	}
+
+	kfree(gpio_data);
+
+	return 0;
+}
+
+static struct platform_driver timed_gpio_driver = {
+	.probe		= timed_gpio_probe,
+	.remove		= timed_gpio_remove,
+	.driver		= {
+		.name		= TIMED_GPIO_NAME,
+		.owner		= THIS_MODULE,
+	},
+};
+
+static int __init timed_gpio_init(void)
+{
+	return platform_driver_register(&timed_gpio_driver);
+}
+
+static void __exit timed_gpio_exit(void)
+{
+	platform_driver_unregister(&timed_gpio_driver);
+}
+
+module_init(timed_gpio_init);
+module_exit(timed_gpio_exit);
+
+MODULE_AUTHOR("Mike Lockwood <lockwood@android.com>");
+MODULE_DESCRIPTION("timed gpio driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/android/timed_gpio.h b/drivers/staging/android/timed_gpio.h
new file mode 100644
index 000000000000..a0e15f8be3f7
--- /dev/null
+++ b/drivers/staging/android/timed_gpio.h
@@ -0,0 +1,33 @@
+/* include/linux/timed_gpio.h
+ *
+ * Copyright (C) 2008 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+*/
+
+#ifndef _LINUX_TIMED_GPIO_H
+#define _LINUX_TIMED_GPIO_H
+
+#define TIMED_GPIO_NAME "timed-gpio"
+
+struct timed_gpio {
+	const char *name;
+	unsigned 	gpio;
+	int		max_timeout;
+	u8 		active_low;
+};
+
+struct timed_gpio_platform_data {
+	int 		num_gpios;
+	struct timed_gpio *gpios;
+};
+
+#endif
diff --git a/drivers/staging/android/timed_output.c b/drivers/staging/android/timed_output.c
new file mode 100644
index 000000000000..f373422308e0
--- /dev/null
+++ b/drivers/staging/android/timed_output.c
@@ -0,0 +1,123 @@
+/* drivers/misc/timed_output.c
+ *
+ * Copyright (C) 2009 Google, Inc.
+ * Author: Mike Lockwood <lockwood@android.com>
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/device.h>
+#include <linux/fs.h>
+#include <linux/err.h>
+
+#include "timed_output.h"
+
+static struct class *timed_output_class;
+static atomic_t device_count;
+
+static ssize_t enable_show(struct device *dev, struct device_attribute *attr,
+		char *buf)
+{
+	struct timed_output_dev *tdev = dev_get_drvdata(dev);
+	int remaining = tdev->get_time(tdev);
+
+	return sprintf(buf, "%d\n", remaining);
+}
+
+static ssize_t enable_store(
+		struct device *dev, struct device_attribute *attr,
+		const char *buf, size_t size)
+{
+	struct timed_output_dev *tdev = dev_get_drvdata(dev);
+	int value;
+
+	if (sscanf(buf, "%d", &value) != 1)
+		return -EINVAL;
+
+	tdev->enable(tdev, value);
+
+	return size;
+}
+
+static DEVICE_ATTR(enable, S_IRUGO | S_IWUSR, enable_show, enable_store);
+
+static int create_timed_output_class(void)
+{
+	if (!timed_output_class) {
+		timed_output_class = class_create(THIS_MODULE, "timed_output");
+		if (IS_ERR(timed_output_class))
+			return PTR_ERR(timed_output_class);
+		atomic_set(&device_count, 0);
+	}
+
+	return 0;
+}
+
+int timed_output_dev_register(struct timed_output_dev *tdev)
+{
+	int ret;
+
+	if (!tdev || !tdev->name || !tdev->enable || !tdev->get_time)
+		return -EINVAL;
+
+	ret = create_timed_output_class();
+	if (ret < 0)
+		return ret;
+
+	tdev->index = atomic_inc_return(&device_count);
+	tdev->dev = device_create(timed_output_class, NULL,
+		MKDEV(0, tdev->index), NULL, tdev->name);
+	if (IS_ERR(tdev->dev))
+		return PTR_ERR(tdev->dev);
+
+	ret = device_create_file(tdev->dev, &dev_attr_enable);
+	if (ret < 0)
+		goto err_create_file;
+
+	dev_set_drvdata(tdev->dev, tdev);
+	tdev->state = 0;
+	return 0;
+
+err_create_file:
+	device_destroy(timed_output_class, MKDEV(0, tdev->index));
+	printk(KERN_ERR "timed_output: Failed to register driver %s\n",
+			tdev->name);
+
+	return ret;
+}
+EXPORT_SYMBOL_GPL(timed_output_dev_register);
+
+void timed_output_dev_unregister(struct timed_output_dev *tdev)
+{
+	device_remove_file(tdev->dev, &dev_attr_enable);
+	device_destroy(timed_output_class, MKDEV(0, tdev->index));
+	dev_set_drvdata(tdev->dev, NULL);
+}
+EXPORT_SYMBOL_GPL(timed_output_dev_unregister);
+
+static int __init timed_output_init(void)
+{
+	return create_timed_output_class();
+}
+
+static void __exit timed_output_exit(void)
+{
+	class_destroy(timed_output_class);
+}
+
+module_init(timed_output_init);
+module_exit(timed_output_exit);
+
+MODULE_AUTHOR("Mike Lockwood <lockwood@android.com>");
+MODULE_DESCRIPTION("timed output class driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/android/timed_output.h b/drivers/staging/android/timed_output.h
new file mode 100644
index 000000000000..ec907ab2ff54
--- /dev/null
+++ b/drivers/staging/android/timed_output.h
@@ -0,0 +1,37 @@
+/* include/linux/timed_output.h
+ *
+ * Copyright (C) 2008 Google, Inc.
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+*/
+
+#ifndef _LINUX_TIMED_OUTPUT_H
+#define _LINUX_TIMED_OUTPUT_H
+
+struct timed_output_dev {
+	const char	*name;
+
+	/* enable the output and set the timer */
+	void	(*enable)(struct timed_output_dev *sdev, int timeout);
+
+	/* returns the current number of milliseconds remaining on the timer */
+	int		(*get_time)(struct timed_output_dev *sdev);
+
+	/* private data */
+	struct device	*dev;
+	int		index;
+	int		state;
+};
+
+extern int timed_output_dev_register(struct timed_output_dev *dev);
+extern void timed_output_dev_unregister(struct timed_output_dev *dev);
+
+#endif
diff --git a/drivers/staging/asus_oled/asus_oled.c b/drivers/staging/asus_oled/asus_oled.c
index 7bb7da7959a2..e77e4e0396cf 100644
--- a/drivers/staging/asus_oled/asus_oled.c
+++ b/drivers/staging/asus_oled/asus_oled.c
@@ -201,7 +201,7 @@ static ssize_t set_enabled(struct device *dev, struct device_attribute *attr,
 	struct usb_interface *intf = to_usb_interface(dev);
 	struct asus_oled_dev *odev = usb_get_intfdata(intf);
 	unsigned long value;
-	if (strict_strtoul(buf, 10, &value))
+	if (kstrtoul(buf, 10, &value))
 		return -EINVAL;
 
 	enable_oled(odev, value);
@@ -217,7 +217,7 @@ static ssize_t class_set_enabled(struct device *device,
 		(struct asus_oled_dev *) dev_get_drvdata(device);
 	unsigned long value;
 
-	if (strict_strtoul(buf, 10, &value))
+	if (kstrtoul(buf, 10, &value))
 		return -EINVAL;
 
 	enable_oled(odev, value);
diff --git a/drivers/staging/bcm/Bcmchar.c b/drivers/staging/bcm/Bcmchar.c
index 2fa658eb74dc..179707b5e7c7 100644
--- a/drivers/staging/bcm/Bcmchar.c
+++ b/drivers/staging/bcm/Bcmchar.c
@@ -161,6 +161,7 @@ static long bcm_char_ioctl(struct file *filp, UINT cmd, ULONG arg)
 	INT Status = STATUS_FAILURE;
 	int timeout = 0;
 	IOCTL_BUFFER IoBuffer;
+	int bytes;
 
 	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL, "Parameters Passed to control IOCTL cmd=0x%X arg=0x%lX", cmd, arg);
 
@@ -230,11 +231,16 @@ static long bcm_char_ioctl(struct file *filp, UINT cmd, ULONG arg)
 		if (!temp_buff)
 			return -ENOMEM;
 
-		Status = rdmalt(Adapter, (UINT)sRdmBuffer.Register,
+		bytes = rdmalt(Adapter, (UINT)sRdmBuffer.Register,
 				(PUINT)temp_buff, Bufflen);
-		if (Status == STATUS_SUCCESS) {
-			if (copy_to_user(IoBuffer.OutputBuffer, temp_buff, IoBuffer.OutputLength))
-				Status = -EFAULT;
+		if (bytes > 0) {
+			Status = STATUS_SUCCESS;
+			if (copy_to_user(IoBuffer.OutputBuffer, temp_buff, bytes)) {
+				kfree(temp_buff);
+				return -EFAULT;
+			}
+		} else {
+			Status = bytes;
 		}
 
 		kfree(temp_buff);
@@ -302,7 +308,11 @@ static long bcm_char_ioctl(struct file *filp, UINT cmd, ULONG arg)
 		if (copy_from_user(&sRdmBuffer, IoBuffer.InputBuffer, IoBuffer.InputLength))
 			return -EFAULT;
 
-		/* FIXME: don't trust user supplied length */
+		if (IoBuffer.OutputLength > USHRT_MAX ||
+			IoBuffer.OutputLength == 0) {
+			return -EINVAL;
+		}
+
 		temp_buff = kmalloc(IoBuffer.OutputLength, GFP_KERNEL);
 		if (!temp_buff)
 			return STATUS_FAILURE;
@@ -318,11 +328,17 @@ static long bcm_char_ioctl(struct file *filp, UINT cmd, ULONG arg)
 		}
 
 		uiTempVar = sRdmBuffer.Register & EEPROM_REJECT_MASK;
-		Status = rdmaltWithLock(Adapter, (UINT)sRdmBuffer.Register, (PUINT)temp_buff, IoBuffer.OutputLength);
+		bytes = rdmaltWithLock(Adapter, (UINT)sRdmBuffer.Register, (PUINT)temp_buff, IoBuffer.OutputLength);
 
-		if (Status == STATUS_SUCCESS)
-			if (copy_to_user(IoBuffer.OutputBuffer, temp_buff, IoBuffer.OutputLength))
-				Status = -EFAULT;
+		if (bytes > 0) {
+			Status = STATUS_SUCCESS;
+			if (copy_to_user(IoBuffer.OutputBuffer, temp_buff, bytes)) {
+				kfree(temp_buff);
+				return -EFAULT;
+			}
+		} else {
+			Status = bytes;
+		}
 
 		kfree(temp_buff);
 		break;
@@ -437,12 +453,14 @@ static long bcm_char_ioctl(struct file *filp, UINT cmd, ULONG arg)
 			}
 		}
 
-		Status = rdmaltWithLock(Adapter, (UINT)GPIO_MODE_REGISTER, (PUINT)ucResetValue, sizeof(UINT));
-
-		if (STATUS_SUCCESS != Status) {
+		bytes = rdmaltWithLock(Adapter, (UINT)GPIO_MODE_REGISTER, (PUINT)ucResetValue, sizeof(UINT));
+		if (bytes < 0) {
+			Status = bytes;
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL,
 					"GPIO_MODE_REGISTER read failed");
 			break;
+		} else {
+			Status = STATUS_SUCCESS;
 		}
 
 		/* Set the gpio mode register to output */
@@ -519,12 +537,15 @@ static long bcm_char_ioctl(struct file *filp, UINT cmd, ULONG arg)
 		uiBit = gpio_info.uiGpioNumber;
 
 		/* Set the gpio output register */
-		Status = rdmaltWithLock(Adapter, (UINT)GPIO_PIN_STATE_REGISTER,
+		bytes = rdmaltWithLock(Adapter, (UINT)GPIO_PIN_STATE_REGISTER,
 					(PUINT)ucRead, sizeof(UINT));
 
-		if (Status != STATUS_SUCCESS) {
+		if (bytes < 0) {
+			Status = bytes;
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "RDM Failed\n");
 			return Status;
+		} else {
+			Status = STATUS_SUCCESS;
 		}
 	}
 	break;
@@ -590,11 +611,14 @@ static long bcm_char_ioctl(struct file *filp, UINT cmd, ULONG arg)
 		}
 
 		if (pgpio_multi_info[WIMAX_IDX].uiGPIOMask) {
-			Status = rdmaltWithLock(Adapter, (UINT)GPIO_PIN_STATE_REGISTER, (PUINT)ucResetValue, sizeof(UINT));
+			bytes = rdmaltWithLock(Adapter, (UINT)GPIO_PIN_STATE_REGISTER, (PUINT)ucResetValue, sizeof(UINT));
 
-			if (Status != STATUS_SUCCESS) {
+			if (bytes < 0) {
+				Status = bytes;
 				BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "RDM to GPIO_PIN_STATE_REGISTER Failed.");
 				return Status;
+			} else {
+				Status = STATUS_SUCCESS;
 			}
 
 			pgpio_multi_info[WIMAX_IDX].uiGPIOValue = (*(UINT *)ucResetValue &
@@ -605,7 +629,7 @@ static long bcm_char_ioctl(struct file *filp, UINT cmd, ULONG arg)
 		if (Status) {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0,
 					"Failed while copying Content to IOBufer for user space err:%d", Status);
-			break;
+			return -EFAULT;
 		}
 	}
 	break;
@@ -629,11 +653,14 @@ static long bcm_char_ioctl(struct file *filp, UINT cmd, ULONG arg)
 		if (copy_from_user(&gpio_multi_mode, IoBuffer.InputBuffer, IoBuffer.InputLength))
 			return -EFAULT;
 
-		Status = rdmaltWithLock(Adapter, (UINT)GPIO_MODE_REGISTER, (PUINT)ucResetValue, sizeof(UINT));
+		bytes = rdmaltWithLock(Adapter, (UINT)GPIO_MODE_REGISTER, (PUINT)ucResetValue, sizeof(UINT));
 
-		if (STATUS_SUCCESS != Status) {
+		if (bytes < 0) {
+			Status = bytes;
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Read of GPIO_MODE_REGISTER failed");
 			return Status;
+		} else {
+			Status = STATUS_SUCCESS;
 		}
 
 		/* Validating the request */
@@ -678,7 +705,7 @@ static long bcm_char_ioctl(struct file *filp, UINT cmd, ULONG arg)
 		if (Status) {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0,
 					"Failed while copying Content to IOBufer for user space err:%d", Status);
-			break;
+			return -EFAULT;
 		}
 	}
 	break;
@@ -706,9 +733,8 @@ static long bcm_char_ioctl(struct file *filp, UINT cmd, ULONG arg)
 			return -ENOMEM;
 
 		if (copy_from_user(pvBuffer, IoBuffer.InputBuffer, IoBuffer.InputLength)) {
-			Status = -EFAULT;
 			kfree(pvBuffer);
-			break;
+			return -EFAULT;
 		}
 
 		down(&Adapter->LowPowerModeSync);
@@ -733,8 +759,7 @@ cntrlEnd:
 	}
 
 	case IOCTL_BCM_BUFFER_DOWNLOAD_START: {
-		INT NVMAccess = down_trylock(&Adapter->NVMRdmWrmLock);
-		if (NVMAccess) {
+		if (down_trylock(&Adapter->NVMRdmWrmLock)) {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL,
 					"IOCTL_BCM_CHIP_RESET not allowed as EEPROM Read/Write is in progress\n");
 			return -EACCES;
@@ -743,157 +768,162 @@ cntrlEnd:
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0,
 				"Starting the firmware download PID =0x%x!!!!\n", current->pid);
 
-		if (!down_trylock(&Adapter->fw_download_sema)) {
-			Adapter->bBinDownloaded = FALSE;
-			Adapter->fw_download_process_pid = current->pid;
-			Adapter->bCfgDownloaded = FALSE;
-			Adapter->fw_download_done = FALSE;
-			netif_carrier_off(Adapter->dev);
-			netif_stop_queue(Adapter->dev);
-			Status = reset_card_proc(Adapter);
-			if (Status) {
-				pr_err(PFX "%s: reset_card_proc Failed!\n", Adapter->dev->name);
-				up(&Adapter->fw_download_sema);
-				up(&Adapter->NVMRdmWrmLock);
-				break;
-			}
-			mdelay(10);
-		} else {
-			Status = -EBUSY;
+		if (down_trylock(&Adapter->fw_download_sema))
+			return -EBUSY;
+
+		Adapter->bBinDownloaded = FALSE;
+		Adapter->fw_download_process_pid = current->pid;
+		Adapter->bCfgDownloaded = FALSE;
+		Adapter->fw_download_done = FALSE;
+		netif_carrier_off(Adapter->dev);
+		netif_stop_queue(Adapter->dev);
+		Status = reset_card_proc(Adapter);
+		if (Status) {
+			pr_err(PFX "%s: reset_card_proc Failed!\n", Adapter->dev->name);
+			up(&Adapter->fw_download_sema);
+			up(&Adapter->NVMRdmWrmLock);
+			return Status;
 		}
+		mdelay(10);
 
 		up(&Adapter->NVMRdmWrmLock);
-		break;
+		return Status;
 	}
 
 	case IOCTL_BCM_BUFFER_DOWNLOAD: {
 		FIRMWARE_INFO *psFwInfo = NULL;
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Starting the firmware download PID =0x%x!!!!\n", current->pid);
-		do {
-			if (!down_trylock(&Adapter->fw_download_sema)) {
-				BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0,
-						"Invalid way to download buffer. Use Start and then call this!!!\n");
-				Status = -EINVAL;
-				break;
-			}
-
-			/* Copy Ioctl Buffer structure */
-			if (copy_from_user(&IoBuffer, argp, sizeof(IOCTL_BUFFER)))
-				return -EFAULT;
 
+		if (!down_trylock(&Adapter->fw_download_sema)) {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0,
-					"Length for FW DLD is : %lx\n", IoBuffer.InputLength);
+					"Invalid way to download buffer. Use Start and then call this!!!\n");
+			up(&Adapter->fw_download_sema);
+			Status = -EINVAL;
+			return Status;
+		}
 
-			if (IoBuffer.InputLength > sizeof(FIRMWARE_INFO))
-				return -EINVAL;
+		/* Copy Ioctl Buffer structure */
+		if (copy_from_user(&IoBuffer, argp, sizeof(IOCTL_BUFFER))) {
+			up(&Adapter->fw_download_sema);
+			return -EFAULT;
+		}
 
-			psFwInfo = kmalloc(sizeof(*psFwInfo), GFP_KERNEL);
-			if (!psFwInfo)
-				return -ENOMEM;
+		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0,
+				"Length for FW DLD is : %lx\n", IoBuffer.InputLength);
 
-			if (copy_from_user(psFwInfo, IoBuffer.InputBuffer, IoBuffer.InputLength))
-				return -EFAULT;
+		if (IoBuffer.InputLength > sizeof(FIRMWARE_INFO)) {
+			up(&Adapter->fw_download_sema);
+			return -EINVAL;
+		}
 
-			if (!psFwInfo->pvMappedFirmwareAddress ||
-				(psFwInfo->u32FirmwareLength == 0)) {
+		psFwInfo = kmalloc(sizeof(*psFwInfo), GFP_KERNEL);
+		if (!psFwInfo) {
+			up(&Adapter->fw_download_sema);
+			return -ENOMEM;
+		}
 
-				BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Something else is wrong %lu\n",
-						psFwInfo->u32FirmwareLength);
-				Status = -EINVAL;
-				break;
-			}
+		if (copy_from_user(psFwInfo, IoBuffer.InputBuffer, IoBuffer.InputLength)) {
+			up(&Adapter->fw_download_sema);
+			return -EFAULT;
+		}
 
-			Status = bcm_ioctl_fw_download(Adapter, psFwInfo);
+		if (!psFwInfo->pvMappedFirmwareAddress ||
+			(psFwInfo->u32FirmwareLength == 0)) {
 
-			if (Status != STATUS_SUCCESS) {
-				if (psFwInfo->u32StartingAddress == CONFIG_BEGIN_ADDR)
-					BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "IOCTL: Configuration File Upload Failed\n");
-				else
-					BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0,	"IOCTL: Firmware File Upload Failed\n");
+			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Something else is wrong %lu\n",
+					psFwInfo->u32FirmwareLength);
+			up(&Adapter->fw_download_sema);
+			Status = -EINVAL;
+			return Status;
+		}
 
-				/* up(&Adapter->fw_download_sema); */
+		Status = bcm_ioctl_fw_download(Adapter, psFwInfo);
 
-				if (Adapter->LEDInfo.led_thread_running & BCM_LED_THREAD_RUNNING_ACTIVELY) {
-					Adapter->DriverState = DRIVER_INIT;
-					Adapter->LEDInfo.bLedInitDone = FALSE;
-					wake_up(&Adapter->LEDInfo.notify_led_event);
-				}
-			}
-			break;
+		if (Status != STATUS_SUCCESS) {
+			if (psFwInfo->u32StartingAddress == CONFIG_BEGIN_ADDR)
+				BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "IOCTL: Configuration File Upload Failed\n");
+			else
+				BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0,	"IOCTL: Firmware File Upload Failed\n");
+
+			/* up(&Adapter->fw_download_sema); */
 
-		} while (0);
+			if (Adapter->LEDInfo.led_thread_running & BCM_LED_THREAD_RUNNING_ACTIVELY) {
+				Adapter->DriverState = DRIVER_INIT;
+				Adapter->LEDInfo.bLedInitDone = FALSE;
+				wake_up(&Adapter->LEDInfo.notify_led_event);
+			}
+		}
 
 		if (Status != STATUS_SUCCESS)
 			up(&Adapter->fw_download_sema);
 
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, OSAL_DBG, DBG_LVL_ALL, "IOCTL: Firmware File Uploaded\n");
 		kfree(psFwInfo);
-		break;
+		return Status;
 	}
 
 	case IOCTL_BCM_BUFFER_DOWNLOAD_STOP: {
-		INT NVMAccess = down_trylock(&Adapter->NVMRdmWrmLock);
+		if (!down_trylock(&Adapter->fw_download_sema)) {
+			up(&Adapter->fw_download_sema);
+			return -EINVAL;
+		}
 
-		if (NVMAccess) {
+		if (down_trylock(&Adapter->NVMRdmWrmLock)) {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0,
 					"FW download blocked as EEPROM Read/Write is in progress\n");
 			up(&Adapter->fw_download_sema);
 			return -EACCES;
 		}
 
-		if (down_trylock(&Adapter->fw_download_sema)) {
-			Adapter->bBinDownloaded = TRUE;
-			Adapter->bCfgDownloaded = TRUE;
-			atomic_set(&Adapter->CurrNumFreeTxDesc, 0);
-			Adapter->CurrNumRecvDescs = 0;
-			Adapter->downloadDDR = 0;
-
-			/* setting the Mips to Run */
-			Status = run_card_proc(Adapter);
+		Adapter->bBinDownloaded = TRUE;
+		Adapter->bCfgDownloaded = TRUE;
+		atomic_set(&Adapter->CurrNumFreeTxDesc, 0);
+		Adapter->CurrNumRecvDescs = 0;
+		Adapter->downloadDDR = 0;
 
-			if (Status) {
-				BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Firm Download Failed\n");
-				up(&Adapter->fw_download_sema);
-				up(&Adapter->NVMRdmWrmLock);
-				break;
-			} else {
-				BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, OSAL_DBG,
-						DBG_LVL_ALL, "Firm Download Over...\n");
-			}
-
-			mdelay(10);
-
-			/* Wait for MailBox Interrupt */
-			if (StartInterruptUrb((PS_INTERFACE_ADAPTER)Adapter->pvInterfaceAdapter))
-				BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Unable to send interrupt...\n");
-
-			timeout = 5*HZ;
-			Adapter->waiting_to_fw_download_done = FALSE;
-			wait_event_timeout(Adapter->ioctl_fw_dnld_wait_queue,
-					Adapter->waiting_to_fw_download_done, timeout);
-			Adapter->fw_download_process_pid = INVALID_PID;
-			Adapter->fw_download_done = TRUE;
-			atomic_set(&Adapter->CurrNumFreeTxDesc, 0);
-			Adapter->CurrNumRecvDescs = 0;
-			Adapter->PrevNumRecvDescs = 0;
-			atomic_set(&Adapter->cntrlpktCnt, 0);
-			Adapter->LinkUpStatus = 0;
-			Adapter->LinkStatus = 0;
+		/* setting the Mips to Run */
+		Status = run_card_proc(Adapter);
 
-			if (Adapter->LEDInfo.led_thread_running & BCM_LED_THREAD_RUNNING_ACTIVELY) {
-				Adapter->DriverState = FW_DOWNLOAD_DONE;
-				wake_up(&Adapter->LEDInfo.notify_led_event);
-			}
-
-			if (!timeout)
-				Status = -ENODEV;
+		if (Status) {
+			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Firm Download Failed\n");
+			up(&Adapter->fw_download_sema);
+			up(&Adapter->NVMRdmWrmLock);
+			return Status;
 		} else {
-			Status = -EINVAL;
+			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, OSAL_DBG,
+					DBG_LVL_ALL, "Firm Download Over...\n");
+		}
+
+		mdelay(10);
+
+		/* Wait for MailBox Interrupt */
+		if (StartInterruptUrb((PS_INTERFACE_ADAPTER)Adapter->pvInterfaceAdapter))
+			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Unable to send interrupt...\n");
+
+		timeout = 5*HZ;
+		Adapter->waiting_to_fw_download_done = FALSE;
+		wait_event_timeout(Adapter->ioctl_fw_dnld_wait_queue,
+				Adapter->waiting_to_fw_download_done, timeout);
+		Adapter->fw_download_process_pid = INVALID_PID;
+		Adapter->fw_download_done = TRUE;
+		atomic_set(&Adapter->CurrNumFreeTxDesc, 0);
+		Adapter->CurrNumRecvDescs = 0;
+		Adapter->PrevNumRecvDescs = 0;
+		atomic_set(&Adapter->cntrlpktCnt, 0);
+		Adapter->LinkUpStatus = 0;
+		Adapter->LinkStatus = 0;
+
+		if (Adapter->LEDInfo.led_thread_running & BCM_LED_THREAD_RUNNING_ACTIVELY) {
+			Adapter->DriverState = FW_DOWNLOAD_DONE;
+			wake_up(&Adapter->LEDInfo.notify_led_event);
 		}
 
+		if (!timeout)
+			Status = -ENODEV;
+
 		up(&Adapter->fw_download_sema);
 		up(&Adapter->NVMRdmWrmLock);
-		break;
+		return Status;
 	}
 
 	case IOCTL_BE_BUCKET_SIZE:
@@ -969,11 +999,15 @@ cntrlEnd:
 	}
 
 	case IOCTL_BCM_GET_DRIVER_VERSION: {
+		ulong len;
+
 		/* Copy Ioctl Buffer structure */
 		if (copy_from_user(&IoBuffer, argp, sizeof(IOCTL_BUFFER)))
 			return -EFAULT;
 
-		if (copy_to_user(IoBuffer.OutputBuffer, VER_FILEVERSION_STR, IoBuffer.OutputLength))
+		len = min_t(ulong, IoBuffer.OutputLength, strlen(VER_FILEVERSION_STR) + 1);
+
+		if (copy_to_user(IoBuffer.OutputBuffer, VER_FILEVERSION_STR, len))
 			return -EFAULT;
 		Status = STATUS_SUCCESS;
 		break;
@@ -985,8 +1019,7 @@ cntrlEnd:
 		/* Copy Ioctl Buffer structure */
 		if (copy_from_user(&IoBuffer, argp, sizeof(IOCTL_BUFFER))) {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "copy_from_user failed..\n");
-			Status = -EFAULT;
-			break;
+			return -EFAULT;
 		}
 
 		if (IoBuffer.OutputLength != sizeof(link_state)) {
@@ -1001,8 +1034,7 @@ cntrlEnd:
 
 		if (copy_to_user(IoBuffer.OutputBuffer, &link_state, min_t(size_t, sizeof(link_state), IoBuffer.OutputLength))) {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Copy_to_user Failed..\n");
-			Status = -EFAULT;
-			break;
+			return -EFAULT;
 		}
 		Status = STATUS_SUCCESS;
 		break;
@@ -1068,8 +1100,10 @@ cntrlEnd:
 		GetDroppedAppCntrlPktMibs(temp_buff, pTarang);
 
 		if (Status != STATUS_FAILURE)
-			if (copy_to_user(IoBuffer.OutputBuffer, temp_buff, sizeof(S_MIBS_HOST_STATS_MIBS)))
-				Status = -EFAULT;
+			if (copy_to_user(IoBuffer.OutputBuffer, temp_buff, sizeof(S_MIBS_HOST_STATS_MIBS))) {
+				kfree(temp_buff);
+				return -EFAULT;
+			}
 
 		kfree(temp_buff);
 		break;
@@ -1103,7 +1137,9 @@ cntrlEnd:
 		if (copy_from_user(&IoBuffer, argp, sizeof(IOCTL_BUFFER)))
 			return -EFAULT;
 
-		/* FIXME: restrict length */
+		if (IoBuffer.InputLength < sizeof(ULONG) * 2)
+			return -EINVAL;
+
 		pvBuffer = kmalloc(IoBuffer.InputLength, GFP_KERNEL);
 		if (!pvBuffer)
 			return -ENOMEM;
@@ -1111,8 +1147,7 @@ cntrlEnd:
 		/* Get WrmBuffer structure */
 		if (copy_from_user(pvBuffer, IoBuffer.InputBuffer, IoBuffer.InputLength)) {
 			kfree(pvBuffer);
-			Status = -EFAULT;
-			break;
+			return -EFAULT;
 		}
 
 		pBulkBuffer = (PBULKWRM_BUFFER)pvBuffer;
@@ -1242,8 +1277,7 @@ cntrlEnd:
 		memset(&tv1, 0, sizeof(struct timeval));
 		if ((Adapter->eNVMType == NVM_FLASH) && (Adapter->uiFlashLayoutMajorVersion == 0)) {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "The Flash Control Section is Corrupted. Hence Rejection on NVM Read/Write\n");
-			Status = -EFAULT;
-			break;
+			return -EFAULT;
 		}
 
 		if (IsFlash2x(Adapter)) {
@@ -1252,7 +1286,7 @@ cntrlEnd:
 				(Adapter->eActiveDSD != DSD2)) {
 
 				BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "No DSD is active..hence NVM Command is blocked");
-				return STATUS_FAILURE ;
+				return STATUS_FAILURE;
 			}
 		}
 
@@ -1271,8 +1305,7 @@ cntrlEnd:
 
 		if ((stNVMReadWrite.uiOffset + stNVMReadWrite.uiNumBytes) > Adapter->uiNVMDSDSize) {
 			/* BCM_DEBUG_PRINT(Adapter,DBG_TYPE_PRINTK, 0, 0,"Can't allow access beyond NVM Size: 0x%x 0x%x\n", stNVMReadWrite.uiOffset, stNVMReadWrite.uiNumBytes); */
-			Status = STATUS_FAILURE;
-			break;
+			return STATUS_FAILURE;
 		}
 
 		pReadData = kzalloc(stNVMReadWrite.uiNumBytes, GFP_KERNEL);
@@ -1280,9 +1313,8 @@ cntrlEnd:
 			return -ENOMEM;
 
 		if (copy_from_user(pReadData, stNVMReadWrite.pBuffer, stNVMReadWrite.uiNumBytes)) {
-			Status = -EFAULT;
 			kfree(pReadData);
-			break;
+			return -EFAULT;
 		}
 
 		do_gettimeofday(&tv0);
@@ -1309,7 +1341,7 @@ cntrlEnd:
 
 			if (copy_to_user(stNVMReadWrite.pBuffer, pReadData, stNVMReadWrite.uiNumBytes)) {
 				kfree(pReadData);
-				Status = -EFAULT;
+				return -EFAULT;
 			}
 		} else {
 			down(&Adapter->NVMRdmWrmLock);
@@ -1377,9 +1409,8 @@ cntrlEnd:
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL, " timetaken by Write/read :%ld msec\n", (tv1.tv_sec - tv0.tv_sec)*1000 + (tv1.tv_usec - tv0.tv_usec)/1000);
 
 		kfree(pReadData);
-		Status = STATUS_SUCCESS;
+		return STATUS_SUCCESS;
 	}
-	break;
 
 	case IOCTL_BCM_FLASH2X_SECTION_READ: {
 		FLASH2X_READWRITE sFlash2xRead = {0};
@@ -1456,7 +1487,9 @@ cntrlEnd:
 			Status = copy_to_user(OutPutBuff, pReadBuff, ReadBytes);
 			if (Status) {
 				BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL, "Copy to use failed with status :%d", Status);
-				break;
+				up(&Adapter->NVMRdmWrmLock);
+				kfree(pReadBuff);
+				return -EFAULT;
 			}
 			NOB = NOB - ReadBytes;
 			if (NOB) {
@@ -1548,7 +1581,9 @@ cntrlEnd:
 			Status = copy_from_user(pWriteBuff, InputAddr, WriteBytes);
 			if (Status) {
 				BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Copy to user failed with status :%d", Status);
-				break;
+				up(&Adapter->NVMRdmWrmLock);
+				kfree(pWriteBuff);
+				return -EFAULT;
 			}
 			BCM_DEBUG_PRINT_BUFFER(Adapter, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL, pWriteBuff, WriteBytes);
 
@@ -1608,8 +1643,10 @@ cntrlEnd:
 
 		BcmGetFlash2xSectionalBitMap(Adapter, psFlash2xBitMap);
 		up(&Adapter->NVMRdmWrmLock);
-		if (copy_to_user(IoBuffer.OutputBuffer, psFlash2xBitMap, sizeof(FLASH2X_BITMAP)))
-			Status = -EFAULT;
+		if (copy_to_user(IoBuffer.OutputBuffer, psFlash2xBitMap, sizeof(FLASH2X_BITMAP))) {
+			kfree(psFlash2xBitMap);
+			return -EFAULT;
+		}
 
 		kfree(psFlash2xBitMap);
 	}
@@ -1627,13 +1664,13 @@ cntrlEnd:
 		Status = copy_from_user(&IoBuffer, argp, sizeof(IOCTL_BUFFER));
 		if (Status) {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Copy of IOCTL BUFFER failed");
-			return Status;
+			return -EFAULT;
 		}
 
 		Status = copy_from_user(&eFlash2xSectionVal, IoBuffer.InputBuffer, sizeof(INT));
 		if (Status) {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Copy of flash section val failed");
-			return Status;
+			return -EFAULT;
 		}
 
 		down(&Adapter->NVMRdmWrmLock);
@@ -1677,13 +1714,13 @@ cntrlEnd:
 		Status = copy_from_user(&IoBuffer, argp, sizeof(IOCTL_BUFFER));
 		if (Status) {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Copy of IOCTL BUFFER failed Status :%d", Status);
-			return Status;
+			return -EFAULT;
 		}
 
 		Status = copy_from_user(&sCopySectStrut, IoBuffer.InputBuffer, sizeof(FLASH2X_COPY_SECTION));
 		if (Status) {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Copy of Copy_Section_Struct failed with Status :%d", Status);
-			return Status;
+			return -EFAULT;
 		}
 
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL, "Source SEction :%x", sCopySectStrut.SrcSection);
@@ -1744,7 +1781,7 @@ cntrlEnd:
 		Status = copy_from_user(&IoBuffer, argp, sizeof(IOCTL_BUFFER));
 		if (Status) {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Copy of IOCTL BUFFER failed");
-			break;
+			return -EFAULT;
 		}
 
 		if (Adapter->eNVMType != NVM_FLASH) {
@@ -1783,12 +1820,12 @@ cntrlEnd:
 		Status = copy_from_user(&IoBuffer, argp, sizeof(IOCTL_BUFFER));
 		if (Status) {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Copy of IOCTL BUFFER failed");
-			return Status;
+			return -EFAULT;
 		}
 		Status = copy_from_user(&eFlash2xSectionVal, IoBuffer.InputBuffer, sizeof(INT));
 		if (Status) {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Copy of flash section val failed");
-			return Status;
+			return -EFAULT;
 		}
 
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL, "Read Section :%d", eFlash2xSectionVal);
@@ -1830,8 +1867,7 @@ cntrlEnd:
 		/* Copy Ioctl Buffer structure */
 		if (copy_from_user(&IoBuffer, argp, sizeof(IOCTL_BUFFER))) {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "copy_from_user 1 failed\n");
-			Status = -EFAULT;
-			break;
+			return -EFAULT;
 		}
 
 		if (copy_from_user(&stNVMRead, IoBuffer.OutputBuffer, sizeof(NVM_READWRITE)))
@@ -1886,7 +1922,9 @@ cntrlEnd:
 			Status = copy_to_user(OutPutBuff, pReadBuff, ReadBytes);
 			if (Status) {
 				BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Copy to use failed with status :%d", Status);
-				break;
+				up(&Adapter->NVMRdmWrmLock);
+				kfree(pReadBuff);
+				return -EFAULT;
 			}
 			NOB = NOB - ReadBytes;
 			if (NOB) {
@@ -1907,8 +1945,7 @@ cntrlEnd:
 		Status = copy_from_user(&IoBuffer, argp, sizeof(IOCTL_BUFFER));
 		if (Status) {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL, "copy of Ioctl buffer is failed from user space");
-			Status = -EFAULT;
-			break;
+			return -EFAULT;
 		}
 
 		if (IoBuffer.InputLength != sizeof(unsigned long)) {
@@ -1919,8 +1956,7 @@ cntrlEnd:
 		Status = copy_from_user(&RxCntrlMsgBitMask, IoBuffer.InputBuffer, IoBuffer.InputLength);
 		if (Status) {
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL, "copy of control bit mask failed from user space");
-			Status = -EFAULT;
-			break;
+			return -EFAULT;
 		}
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, OSAL_DBG, DBG_LVL_ALL, "\n Got user defined cntrl msg bit mask :%lx", RxCntrlMsgBitMask);
 		pTarang->RxCntrlMsgBitMask = RxCntrlMsgBitMask;
diff --git a/drivers/staging/bcm/HandleControlPacket.c b/drivers/staging/bcm/HandleControlPacket.c
index 2b1e9e17e11c..b058e30b2ca6 100644
--- a/drivers/staging/bcm/HandleControlPacket.c
+++ b/drivers/staging/bcm/HandleControlPacket.c
@@ -1,195 +1,208 @@
 /**
-@file HandleControlPacket.c
-This file contains the routines to deal with
-sending and receiving of control packets.
-*/
+ * @file HandleControlPacket.c
+ * This file contains the routines to deal with
+ * sending and receiving of control packets.
+ */
 #include "headers.h"
 
 /**
-When a control packet is received, analyze the
-"status" and call appropriate response function.
-Enqueue the control packet for Application.
-@return None
-*/
+ * When a control packet is received, analyze the
+ * "status" and call appropriate response function.
+ * Enqueue the control packet for Application.
+ * @return None
+ */
 static VOID handle_rx_control_packet(PMINI_ADAPTER Adapter, struct sk_buff *skb)
 {
-	PPER_TARANG_DATA	pTarang = NULL;
+	PPER_TARANG_DATA pTarang = NULL;
 	BOOLEAN HighPriorityMessage = FALSE;
-	struct sk_buff * newPacket = NULL;
+	struct sk_buff *newPacket = NULL;
 	CHAR cntrl_msg_mask_bit = 0;
-	BOOLEAN drop_pkt_flag = TRUE ;
+	BOOLEAN drop_pkt_flag = TRUE;
 	USHORT usStatus = *(PUSHORT)(skb->data);
 
 	if (netif_msg_pktdata(Adapter))
 		print_hex_dump(KERN_DEBUG, PFX "rx control: ", DUMP_PREFIX_NONE,
-			       16, 1, skb->data, skb->len, 0);
-
-	switch(usStatus)
-	{
-		case CM_RESPONSES:               // 0xA0
-			BCM_DEBUG_PRINT( Adapter,DBG_TYPE_OTHERS, CP_CTRL_PKT, DBG_LVL_ALL, "MAC Version Seems to be Non Multi-Classifier, rejected by Driver");
-			HighPriorityMessage = TRUE ;
-			break;
-		case CM_CONTROL_NEWDSX_MULTICLASSIFIER_RESP:
-			HighPriorityMessage = TRUE ;
-			if(Adapter->LinkStatus==LINKUP_DONE)
-			{
-				CmControlResponseMessage(Adapter,(skb->data +sizeof(USHORT)));
-			}
-			break;
-		case LINK_CONTROL_RESP:          //0xA2
-		case STATUS_RSP:          //0xA1
-			BCM_DEBUG_PRINT( Adapter,DBG_TYPE_OTHERS, CP_CTRL_PKT, DBG_LVL_ALL,"LINK_CONTROL_RESP");
-			HighPriorityMessage = TRUE ;
-			LinkControlResponseMessage(Adapter,(skb->data + sizeof(USHORT)));
-			break;
-		case STATS_POINTER_RESP:       //0xA6
-			HighPriorityMessage = TRUE ;
-			StatisticsResponse(Adapter, (skb->data + sizeof(USHORT)));
-			break;
-		case IDLE_MODE_STATUS:			//0xA3
-			BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, CP_CTRL_PKT, DBG_LVL_ALL,"IDLE_MODE_STATUS Type Message Got from F/W");
-			InterfaceIdleModeRespond(Adapter, (PUINT)(skb->data +
-						sizeof(USHORT)));
-			HighPriorityMessage = TRUE ;
-			break;
-
-		case AUTH_SS_HOST_MSG:
-			HighPriorityMessage = TRUE ;
-			break;
-
-	 	default:
-			BCM_DEBUG_PRINT( Adapter,DBG_TYPE_OTHERS, CP_CTRL_PKT, DBG_LVL_ALL,"Got Default Response");
-			/* Let the Application Deal with This Packet */
-			break;
+				16, 1, skb->data, skb->len, 0);
+
+	switch (usStatus) {
+	case CM_RESPONSES:               /* 0xA0 */
+		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, CP_CTRL_PKT,
+			DBG_LVL_ALL,
+			"MAC Version Seems to be Non Multi-Classifier, rejected by Driver");
+		HighPriorityMessage = TRUE;
+		break;
+	case CM_CONTROL_NEWDSX_MULTICLASSIFIER_RESP:
+		HighPriorityMessage = TRUE;
+		if (Adapter->LinkStatus == LINKUP_DONE)
+			CmControlResponseMessage(Adapter,
+				(skb->data + sizeof(USHORT)));
+		break;
+	case LINK_CONTROL_RESP:          /* 0xA2 */
+	case STATUS_RSP:                 /* 0xA1 */
+		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, CP_CTRL_PKT,
+			DBG_LVL_ALL, "LINK_CONTROL_RESP");
+		HighPriorityMessage = TRUE;
+		LinkControlResponseMessage(Adapter,
+			(skb->data + sizeof(USHORT)));
+		break;
+	case STATS_POINTER_RESP:         /* 0xA6 */
+		HighPriorityMessage = TRUE;
+		StatisticsResponse(Adapter, (skb->data + sizeof(USHORT)));
+		break;
+	case IDLE_MODE_STATUS:           /* 0xA3 */
+		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, CP_CTRL_PKT,
+			DBG_LVL_ALL,
+			"IDLE_MODE_STATUS Type Message Got from F/W");
+		InterfaceIdleModeRespond(Adapter, (PUINT)(skb->data +
+					sizeof(USHORT)));
+		HighPriorityMessage = TRUE;
+		break;
+
+	case AUTH_SS_HOST_MSG:
+		HighPriorityMessage = TRUE;
+		break;
+
+	default:
+		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, CP_CTRL_PKT,
+			DBG_LVL_ALL, "Got Default Response");
+		/* Let the Application Deal with This Packet */
+		break;
 	}
 
-	//Queue The Control Packet to The Application Queues
+	/* Queue The Control Packet to The Application Queues */
 	down(&Adapter->RxAppControlQueuelock);
 
-	for (pTarang = Adapter->pTarangs; pTarang; pTarang = pTarang->next)
-    {
-       	if(Adapter->device_removed)
-		{
+	for (pTarang = Adapter->pTarangs; pTarang; pTarang = pTarang->next) {
+		if (Adapter->device_removed)
 			break;
-		}
 
-		drop_pkt_flag = TRUE ;
+		drop_pkt_flag = TRUE;
 		/*
-			There are cntrl msg from A0 to AC. It has been mapped to 0 to C bit in the cntrl mask.
-			Also, by default AD to BF has been masked to the rest of the bits... which wil be ON by default.
-			if mask bit is enable to particular pkt status, send it out to app else stop it.
-		*/
+		 * There are cntrl msg from A0 to AC. It has been mapped to 0 to
+		 * C bit in the cntrl mask.
+		 * Also, by default AD to BF has been masked to the rest of the
+		 * bits... which wil be ON by default.
+		 * if mask bit is enable to particular pkt status, send it out
+		 * to app else stop it.
+		 */
 		cntrl_msg_mask_bit = (usStatus & 0x1F);
-		//printk("\ninew  msg  mask bit which is disable in mask:%X", cntrl_msg_mask_bit);
-		if(pTarang->RxCntrlMsgBitMask & (1<<cntrl_msg_mask_bit))
-				drop_pkt_flag = FALSE;
-
-		if ((drop_pkt_flag == TRUE)  || (pTarang->AppCtrlQueueLen > MAX_APP_QUEUE_LEN) ||
-					((pTarang->AppCtrlQueueLen > MAX_APP_QUEUE_LEN/2) && (HighPriorityMessage == FALSE)))
-		{
+		/*
+		 * printk("\ninew  msg  mask bit which is disable in mask:%X",
+		 *	cntrl_msg_mask_bit);
+		 */
+		if (pTarang->RxCntrlMsgBitMask & (1 << cntrl_msg_mask_bit))
+			drop_pkt_flag = FALSE;
+
+		if ((drop_pkt_flag == TRUE) ||
+				(pTarang->AppCtrlQueueLen > MAX_APP_QUEUE_LEN)
+				|| ((pTarang->AppCtrlQueueLen >
+					MAX_APP_QUEUE_LEN / 2) &&
+				    (HighPriorityMessage == FALSE))) {
 			/*
-				Assumption:-
-				1. every tarang manages it own dropped pkt statitistics
-				2. Total packet dropped per tarang will be equal to the sum of all types of dropped
-					pkt by that tarang only.
-
-			*/
-			switch(*(PUSHORT)skb->data)
-			{
-				case CM_RESPONSES:
-					pTarang->stDroppedAppCntrlMsgs.cm_responses++;
-					break;
-				case CM_CONTROL_NEWDSX_MULTICLASSIFIER_RESP:
-				 pTarang->stDroppedAppCntrlMsgs.cm_control_newdsx_multiclassifier_resp++;
-					 break;
-				case LINK_CONTROL_RESP:
-					pTarang->stDroppedAppCntrlMsgs.link_control_resp++;
-					break;
-				case STATUS_RSP:
-					pTarang->stDroppedAppCntrlMsgs.status_rsp++;
-					break;
-				case STATS_POINTER_RESP:
-					pTarang->stDroppedAppCntrlMsgs.stats_pointer_resp++;
-					break;
-				case IDLE_MODE_STATUS:
-					pTarang->stDroppedAppCntrlMsgs.idle_mode_status++ ;
-					break;
-				case AUTH_SS_HOST_MSG:
-					pTarang->stDroppedAppCntrlMsgs.auth_ss_host_msg++ ;
-					break;
+			 * Assumption:-
+			 * 1. every tarang manages it own dropped pkt
+			 *    statitistics
+			 * 2. Total packet dropped per tarang will be equal to
+			 *    the sum of all types of dropped pkt by that
+			 *    tarang only.
+			 */
+			switch (*(PUSHORT)skb->data) {
+			case CM_RESPONSES:
+				pTarang->stDroppedAppCntrlMsgs.cm_responses++;
+				break;
+			case CM_CONTROL_NEWDSX_MULTICLASSIFIER_RESP:
+				pTarang->stDroppedAppCntrlMsgs.cm_control_newdsx_multiclassifier_resp++;
+				break;
+			case LINK_CONTROL_RESP:
+				pTarang->stDroppedAppCntrlMsgs.link_control_resp++;
+				break;
+			case STATUS_RSP:
+				pTarang->stDroppedAppCntrlMsgs.status_rsp++;
+				break;
+			case STATS_POINTER_RESP:
+				pTarang->stDroppedAppCntrlMsgs.stats_pointer_resp++;
+				break;
+			case IDLE_MODE_STATUS:
+				pTarang->stDroppedAppCntrlMsgs.idle_mode_status++;
+				break;
+			case AUTH_SS_HOST_MSG:
+				pTarang->stDroppedAppCntrlMsgs.auth_ss_host_msg++;
+				break;
 			default:
-					pTarang->stDroppedAppCntrlMsgs.low_priority_message++ ;
-					break;
+				pTarang->stDroppedAppCntrlMsgs.low_priority_message++;
+				break;
 			}
 
 			continue;
 		}
 
-        newPacket = skb_clone(skb, GFP_KERNEL);
-        if (!newPacket)
-           break;
-        ENQUEUEPACKET(pTarang->RxAppControlHead,pTarang->RxAppControlTail,
-				newPacket);
-        pTarang->AppCtrlQueueLen++;
-    }
+		newPacket = skb_clone(skb, GFP_KERNEL);
+		if (!newPacket)
+			break;
+		ENQUEUEPACKET(pTarang->RxAppControlHead,
+				pTarang->RxAppControlTail, newPacket);
+		pTarang->AppCtrlQueueLen++;
+	}
 	up(&Adapter->RxAppControlQueuelock);
-    wake_up(&Adapter->process_read_wait_queue);
-    dev_kfree_skb(skb);
-	BCM_DEBUG_PRINT( Adapter,DBG_TYPE_OTHERS, CP_CTRL_PKT, DBG_LVL_ALL, "After wake_up_interruptible");
+	wake_up(&Adapter->process_read_wait_queue);
+	dev_kfree_skb(skb);
+	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, CP_CTRL_PKT, DBG_LVL_ALL,
+			"After wake_up_interruptible");
 }
 
 /**
-@ingroup ctrl_pkt_functions
-Thread to handle control pkt reception
-*/
-int control_packet_handler  (PMINI_ADAPTER Adapter  /**< pointer to adapter object*/
-						)
+ * @ingroup ctrl_pkt_functions
+ * Thread to handle control pkt reception
+ */
+int control_packet_handler(PMINI_ADAPTER Adapter /* pointer to adapter object*/)
 {
-	struct sk_buff *ctrl_packet= NULL;
+	struct sk_buff *ctrl_packet = NULL;
 	unsigned long flags = 0;
-	//struct timeval tv ;
-	//int *puiBuffer = NULL ;
-	BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, CP_CTRL_PKT, DBG_LVL_ALL, "Entering to make thread wait on control packet event!");
-	while(1)
-	{
+	/* struct timeval tv; */
+	/* int *puiBuffer = NULL; */
+	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, CP_CTRL_PKT, DBG_LVL_ALL,
+		"Entering to make thread wait on control packet event!");
+	while (1) {
 		wait_event_interruptible(Adapter->process_rx_cntrlpkt,
-								 atomic_read(&Adapter->cntrlpktCnt) ||
-								 Adapter->bWakeUpDevice ||
-								 kthread_should_stop()
-								);
+			atomic_read(&Adapter->cntrlpktCnt) ||
+			Adapter->bWakeUpDevice ||
+			kthread_should_stop());
 
 
-		if(kthread_should_stop())
-		{
-			BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, CP_CTRL_PKT, DBG_LVL_ALL, "Exiting \n");
+		if (kthread_should_stop()) {
+			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, CP_CTRL_PKT,
+				DBG_LVL_ALL, "Exiting\n");
 			return 0;
 		}
-		if(TRUE == Adapter->bWakeUpDevice)
-		{
+		if (TRUE == Adapter->bWakeUpDevice) {
 			Adapter->bWakeUpDevice = FALSE;
-			if((FALSE == Adapter->bTriedToWakeUpFromlowPowerMode) &&
-				((TRUE == Adapter->IdleMode)|| (TRUE == Adapter->bShutStatus)))
-			{
-				BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, CP_CTRL_PKT, DBG_LVL_ALL, "Calling InterfaceAbortIdlemode\n");
-	//			Adapter->bTriedToWakeUpFromlowPowerMode = TRUE;
-				InterfaceIdleModeWakeup (Adapter);
+			if ((FALSE == Adapter->bTriedToWakeUpFromlowPowerMode)
+					&& ((TRUE == Adapter->IdleMode) ||
+					    (TRUE == Adapter->bShutStatus))) {
+				BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS,
+					CP_CTRL_PKT, DBG_LVL_ALL,
+					"Calling InterfaceAbortIdlemode\n");
+				/*
+				 * Adapter->bTriedToWakeUpFromlowPowerMode
+				 *					= TRUE;
+				 */
+				InterfaceIdleModeWakeup(Adapter);
 			}
 			continue;
 		}
 
-		while(atomic_read(&Adapter->cntrlpktCnt))
-		{
+		while (atomic_read(&Adapter->cntrlpktCnt)) {
 			spin_lock_irqsave(&Adapter->control_queue_lock, flags);
 			ctrl_packet = Adapter->RxControlHead;
-			if(ctrl_packet)
-			{
-				DEQUEUEPACKET(Adapter->RxControlHead,Adapter->RxControlTail);
-//				Adapter->RxControlHead=ctrl_packet->next;
+			if (ctrl_packet) {
+				DEQUEUEPACKET(Adapter->RxControlHead,
+					Adapter->RxControlTail);
+				/* Adapter->RxControlHead=ctrl_packet->next; */
 			}
 
-			spin_unlock_irqrestore (&Adapter->control_queue_lock, flags);
-		 	handle_rx_control_packet(Adapter, ctrl_packet);
+			spin_unlock_irqrestore(&Adapter->control_queue_lock,
+						flags);
+			handle_rx_control_packet(Adapter, ctrl_packet);
 			atomic_dec(&Adapter->cntrlpktCnt);
 		}
 
@@ -201,22 +214,22 @@ int control_packet_handler  (PMINI_ADAPTER Adapter  /**< pointer to adapter obje
 INT flushAllAppQ(void)
 {
 	PMINI_ADAPTER Adapter = GET_BCM_ADAPTER(gblpnetdev);
-	PPER_TARANG_DATA	pTarang = NULL;
+	PPER_TARANG_DATA pTarang = NULL;
 	struct sk_buff *PacketToDrop = NULL;
-	for(pTarang = Adapter->pTarangs; pTarang; pTarang = pTarang->next)
-	{
-		while(pTarang->RxAppControlHead != NULL)
-		{
-			PacketToDrop=pTarang->RxAppControlHead;
-			DEQUEUEPACKET(pTarang->RxAppControlHead,pTarang->RxAppControlTail);
+	for (pTarang = Adapter->pTarangs; pTarang; pTarang = pTarang->next) {
+		while (pTarang->RxAppControlHead != NULL) {
+			PacketToDrop = pTarang->RxAppControlHead;
+			DEQUEUEPACKET(pTarang->RxAppControlHead,
+					pTarang->RxAppControlTail);
 			dev_kfree_skb(PacketToDrop);
 		}
 		pTarang->AppCtrlQueueLen = 0;
-		//dropped contrl packet statistics also should be reset.
-		memset((PVOID)&pTarang->stDroppedAppCntrlMsgs, 0, sizeof(S_MIBS_DROPPED_APP_CNTRL_MESSAGES));
+		/* dropped contrl packet statistics also should be reset. */
+		memset((PVOID)&pTarang->stDroppedAppCntrlMsgs, 0,
+			sizeof(S_MIBS_DROPPED_APP_CNTRL_MESSAGES));
 
 	}
-	return STATUS_SUCCESS ;
+	return STATUS_SUCCESS;
 }
 
 
diff --git a/drivers/staging/bcm/InterfaceDld.c b/drivers/staging/bcm/InterfaceDld.c
index bcd86bbef2fd..65c352f35681 100644
--- a/drivers/staging/bcm/InterfaceDld.c
+++ b/drivers/staging/bcm/InterfaceDld.c
@@ -62,6 +62,7 @@ int InterfaceFileReadbackFromChip(PVOID arg, struct file *flp, unsigned int on_c
 	static int fw_down;
 	INT Status = STATUS_SUCCESS;
 	PS_INTERFACE_ADAPTER psIntfAdapter = (PS_INTERFACE_ADAPTER)arg;
+	int bytes;
 
 	buff = kmalloc(MAX_TRANSFER_CTRL_BYTE_USB, GFP_DMA);
 	buff_readback = kmalloc(MAX_TRANSFER_CTRL_BYTE_USB , GFP_DMA);
@@ -94,8 +95,9 @@ int InterfaceFileReadbackFromChip(PVOID arg, struct file *flp, unsigned int on_c
 			break;
 		}
 
-		Status = InterfaceRDM(psIntfAdapter, on_chip_loc, buff_readback, len);
-		if (Status) {
+		bytes = InterfaceRDM(psIntfAdapter, on_chip_loc, buff_readback, len);
+		if (bytes < 0) {
+			Status = bytes;
 			BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "RDM of len %d Failed! %d", len, reg);
 			goto exit;
 		}
@@ -302,6 +304,7 @@ static INT buffRdbkVerify(PMINI_ADAPTER Adapter, PUCHAR mappedbuffer, UINT u32Fi
 	UINT len = u32FirmwareLength;
 	INT retval = STATUS_SUCCESS;
 	PUCHAR readbackbuff = kzalloc(MAX_TRANSFER_CTRL_BYTE_USB, GFP_KERNEL);
+	int bytes;
 
 	if (NULL == readbackbuff) {
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "MEMORY ALLOCATION FAILED");
@@ -310,9 +313,10 @@ static INT buffRdbkVerify(PMINI_ADAPTER Adapter, PUCHAR mappedbuffer, UINT u32Fi
 
 	while (u32FirmwareLength && !retval) {
 		len = MIN_VAL(u32FirmwareLength, MAX_TRANSFER_CTRL_BYTE_USB);
-		retval = rdm(Adapter, u32StartingAddress, readbackbuff, len);
+		bytes = rdm(Adapter, u32StartingAddress, readbackbuff, len);
 
-		if (retval) {
+		if (bytes < 0) {
+			retval = bytes;
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "rdm failed with status %d", retval);
 			break;
 		}
diff --git a/drivers/staging/bcm/InterfaceIdleMode.c b/drivers/staging/bcm/InterfaceIdleMode.c
index 96fa4ead7930..faeb03e62c06 100644
--- a/drivers/staging/bcm/InterfaceIdleMode.c
+++ b/drivers/staging/bcm/InterfaceIdleMode.c
@@ -46,6 +46,7 @@ int InterfaceIdleModeRespond(PMINI_ADAPTER Adapter, unsigned int* puiBuffer)
 {
 	int	status = STATUS_SUCCESS;
 	unsigned int	uiRegRead = 0;
+	int bytes;
 
 	BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, IDLE_MODE, DBG_LVL_ALL,"SubType of Message :0x%X", ntohl(*puiBuffer));
 
@@ -77,16 +78,16 @@ int InterfaceIdleModeRespond(PMINI_ADAPTER Adapter, unsigned int* puiBuffer)
 			else if(Adapter->ulPowerSaveMode != DEVICE_POWERSAVE_MODE_AS_PROTOCOL_IDLE_MODE)
 			{
 				//clear on read Register
-				status = rdmalt(Adapter, DEVICE_INT_OUT_EP_REG0, &uiRegRead, sizeof(uiRegRead));
-				if(status)
-				{
+				bytes = rdmalt(Adapter, DEVICE_INT_OUT_EP_REG0, &uiRegRead, sizeof(uiRegRead));
+				if (bytes < 0) {
+					status = bytes;
 					BCM_DEBUG_PRINT(Adapter,DBG_TYPE_PRINTK, 0, 0, "rdm failed while clearing H/W Abort Reg0");
 					return status;
 				}
 				//clear on read Register
-				status = rdmalt (Adapter, DEVICE_INT_OUT_EP_REG1, &uiRegRead, sizeof(uiRegRead));
-				if(status)
-				{
+				bytes = rdmalt(Adapter, DEVICE_INT_OUT_EP_REG1, &uiRegRead, sizeof(uiRegRead));
+				if (bytes < 0) {
+					status = bytes;
 					BCM_DEBUG_PRINT(Adapter,DBG_TYPE_PRINTK, 0, 0, "rdm failed while clearing H/W Abort	Reg1");
 					return status;
 				}
@@ -117,9 +118,9 @@ int InterfaceIdleModeRespond(PMINI_ADAPTER Adapter, unsigned int* puiBuffer)
 					Adapter->chip_id== BCS220_3)
 			{
 
-				status = rdmalt(Adapter, HPM_CONFIG_MSW, &uiRegRead, sizeof(uiRegRead));
-				if(status)
-				{
+				bytes = rdmalt(Adapter, HPM_CONFIG_MSW, &uiRegRead, sizeof(uiRegRead));
+				if (bytes < 0) {
+					status = bytes;
 					BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, IDLE_MODE, DBG_LVL_ALL, "rdm failed while Reading HPM_CONFIG_LDO145 Reg 0\n");
 					return status;
 				}
@@ -266,6 +267,8 @@ void InterfaceHandleShutdownModeWakeup(PMINI_ADAPTER Adapter)
 {
 	unsigned int uiRegVal = 0;
 	INT Status = 0;
+	int bytes;
+
 	if(Adapter->ulPowerSaveMode == DEVICE_POWERSAVE_MODE_AS_MANUAL_CLOCK_GATING)
 	{
 		// clear idlemode interrupt.
@@ -282,16 +285,16 @@ void InterfaceHandleShutdownModeWakeup(PMINI_ADAPTER Adapter)
 	{
 
         //clear Interrupt EP registers.
-		Status = rdmalt(Adapter,DEVICE_INT_OUT_EP_REG0, &uiRegVal, sizeof(uiRegVal));
-		if(Status)
-		{
+		bytes = rdmalt(Adapter,DEVICE_INT_OUT_EP_REG0, &uiRegVal, sizeof(uiRegVal));
+		if (bytes < 0) {
+			Status = bytes;
 			BCM_DEBUG_PRINT(Adapter,DBG_TYPE_PRINTK, 0, 0,"RDM of DEVICE_INT_OUT_EP_REG0 failed with Err :%d", Status);
 			return;
 		}
 
-        Status = rdmalt(Adapter,DEVICE_INT_OUT_EP_REG1, &uiRegVal, sizeof(uiRegVal));
-		if(Status)
-		{
+		bytes = rdmalt(Adapter,DEVICE_INT_OUT_EP_REG1, &uiRegVal, sizeof(uiRegVal));
+		if (bytes < 0) {
+			Status = bytes;
 			BCM_DEBUG_PRINT(Adapter,DBG_TYPE_PRINTK, 0, 0,"RDM of DEVICE_INT_OUT_EP_REG1 failed with Err :%d", Status);
 			return;
 		}
diff --git a/drivers/staging/bcm/InterfaceInit.c b/drivers/staging/bcm/InterfaceInit.c
index a09d35108f04..8e3c586a699c 100644
--- a/drivers/staging/bcm/InterfaceInit.c
+++ b/drivers/staging/bcm/InterfaceInit.c
@@ -68,7 +68,7 @@ static void InterfaceAdapterFree(PS_INTERFACE_ADAPTER psIntfAdapter)
 static void ConfigureEndPointTypesThroughEEPROM(PMINI_ADAPTER Adapter)
 {
 	unsigned long ulReg = 0;
-	int ret;
+	int bytes;
 
 	/* Program EP2 MAX_PKT_SIZE */
 	ulReg = ntohl(EP2_MPS_REG);
@@ -94,8 +94,8 @@ static void ConfigureEndPointTypesThroughEEPROM(PMINI_ADAPTER Adapter)
 	BeceemEEPROMBulkWrite(Adapter, (PUCHAR)&ulReg, 0x140, 4, TRUE);
 
 	/* Program TX EP as interrupt(Alternate Setting) */
-	ret = rdmalt(Adapter, 0x0F0110F8, (u32 *)&ulReg, sizeof(u32));
-	if (ret) {
+	bytes = rdmalt(Adapter, 0x0F0110F8, (u32 *)&ulReg, sizeof(u32));
+	if (bytes < 0) {
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_INITEXIT, DRV_ENTRY, DBG_LVL_ALL,
 			"reading of Tx EP failed\n");
 		return;
@@ -430,6 +430,7 @@ static int InterfaceAdapterInit(PS_INTERFACE_ADAPTER psIntfAdapter)
 	int usedIntOutForBulkTransfer = 0 ;
 	BOOLEAN bBcm16 = FALSE;
 	UINT uiData = 0;
+	int bytes;
 
 	/* Store the usb dev into interface adapter */
 	psIntfAdapter->udev = usb_get_dev(interface_to_usbdev(psIntfAdapter->interface));
@@ -438,9 +439,10 @@ static int InterfaceAdapterInit(PS_INTERFACE_ADAPTER psIntfAdapter)
 	psIntfAdapter->psAdapter->interface_rdm = BcmRDM;
 	psIntfAdapter->psAdapter->interface_wrm = BcmWRM;
 
-	retval = rdmalt(psIntfAdapter->psAdapter, CHIP_ID_REG,
+	bytes = rdmalt(psIntfAdapter->psAdapter, CHIP_ID_REG,
 			(u32 *)&(psIntfAdapter->psAdapter->chip_id), sizeof(u32));
-	if (retval) {
+	if (bytes < 0) {
+		retval = bytes;
 		BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_PRINTK, 0, 0, "CHIP ID Read Failed\n");
 		return retval;
 	}
diff --git a/drivers/staging/bcm/InterfaceMisc.c b/drivers/staging/bcm/InterfaceMisc.c
index 61f878b4f56c..2218faeaf8ac 100644
--- a/drivers/staging/bcm/InterfaceMisc.c
+++ b/drivers/staging/bcm/InterfaceMisc.c
@@ -5,7 +5,7 @@ INT InterfaceRDM(PS_INTERFACE_ADAPTER psIntfAdapter,
 		PVOID buff,
 		INT len)
 {
-	int retval = 0;
+	int bytes;
 	USHORT usRetries = 0;
 
 	if (psIntfAdapter == NULL) {
@@ -30,7 +30,7 @@ INT InterfaceRDM(PS_INTERFACE_ADAPTER psIntfAdapter,
 	psIntfAdapter->psAdapter->DeviceAccess = TRUE;
 
 	do {
-		retval = usb_control_msg(psIntfAdapter->udev,
+		bytes = usb_control_msg(psIntfAdapter->udev,
 					usb_rcvctrlpipe(psIntfAdapter->udev, 0),
 					0x02,
 					0xC2,
@@ -41,22 +41,20 @@ INT InterfaceRDM(PS_INTERFACE_ADAPTER psIntfAdapter,
 					5000);
 
 		usRetries++;
-		if (-ENODEV == retval) {
+		if (-ENODEV == bytes) {
 			psIntfAdapter->psAdapter->device_removed = TRUE;
 			break;
 		}
 
-	} while ((retval < 0) && (usRetries < MAX_RDM_WRM_RETIRES));
+	} while ((bytes < 0) && (usRetries < MAX_RDM_WRM_RETIRES));
 
-	if (retval < 0)	{
-		BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_OTHERS, RDM, DBG_LVL_ALL, "RDM failed status :%d, retires :%d", retval, usRetries);
-		psIntfAdapter->psAdapter->DeviceAccess = FALSE;
-		return retval;
-	} else {
-		BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_OTHERS, RDM, DBG_LVL_ALL, "RDM sent %d", retval);
-		psIntfAdapter->psAdapter->DeviceAccess = FALSE;
-		return STATUS_SUCCESS;
-	}
+	if (bytes < 0)
+		BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_OTHERS, RDM, DBG_LVL_ALL, "RDM failed status :%d, retires :%d", bytes, usRetries);
+	else
+		BCM_DEBUG_PRINT(psIntfAdapter->psAdapter, DBG_TYPE_OTHERS, RDM, DBG_LVL_ALL, "RDM sent %d", bytes);
+
+	psIntfAdapter->psAdapter->DeviceAccess = FALSE;
+	return bytes;
 }
 
 INT InterfaceWRM(PS_INTERFACE_ADAPTER psIntfAdapter,
diff --git a/drivers/staging/bcm/Misc.c b/drivers/staging/bcm/Misc.c
index e9f29d597518..c7725e141fd5 100644
--- a/drivers/staging/bcm/Misc.c
+++ b/drivers/staging/bcm/Misc.c
@@ -814,6 +814,7 @@ int reset_card_proc(PMINI_ADAPTER ps_adapter)
 	PMINI_ADAPTER Adapter = GET_BCM_ADAPTER(gblpnetdev);
 	PS_INTERFACE_ADAPTER psIntfAdapter = NULL;
 	unsigned int value = 0, uiResetValue = 0;
+	int bytes;
 
 	psIntfAdapter = ((PS_INTERFACE_ADAPTER)(ps_adapter->pvInterfaceAdapter));
 	ps_adapter->bDDRInitDone = FALSE;
@@ -848,8 +849,9 @@ int reset_card_proc(PMINI_ADAPTER ps_adapter)
 			ps_adapter->chip_id == BCS250_BC ||
 			ps_adapter->chip_id == BCS220_3) {
 
-			retval = rdmalt(ps_adapter, HPM_CONFIG_LDO145, &value, sizeof(value));
-			if (retval < 0) {
+			bytes = rdmalt(ps_adapter, HPM_CONFIG_LDO145, &value, sizeof(value));
+			if (bytes < 0) {
+				retval = bytes;
 				BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "read failed with status :%d", retval);
 				goto err_exit;
 			}
@@ -862,8 +864,9 @@ int reset_card_proc(PMINI_ADAPTER ps_adapter)
 			}
 		}
 	} else {
-		retval = rdmalt(ps_adapter, 0x0f007018, &value, sizeof(value));
-		if (retval < 0) {
+		bytes = rdmalt(ps_adapter, 0x0f007018, &value, sizeof(value));
+		if (bytes < 0) {
+			retval = bytes;
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "read failed with status :%d", retval);
 			goto err_exit;
 		}
@@ -925,11 +928,16 @@ err_exit:
 
 int run_card_proc(PMINI_ADAPTER ps_adapter)
 {
+	int status = STATUS_SUCCESS;
+	int bytes;
+
 	unsigned int value = 0;
 	{
-		if (rdmalt(ps_adapter, CLOCK_RESET_CNTRL_REG_1, &value, sizeof(value)) < 0) {
+		bytes = rdmalt(ps_adapter, CLOCK_RESET_CNTRL_REG_1, &value, sizeof(value));
+		if (bytes < 0) {
+			status = bytes;
 			BCM_DEBUG_PRINT(ps_adapter, DBG_TYPE_INITEXIT, MP_INIT, DBG_LVL_ALL, "%s:%d\n", __func__, __LINE__);
-			return STATUS_FAILURE;
+			return status;
 		}
 
 		if (ps_adapter->bFlashBoot)
@@ -942,7 +950,7 @@ int run_card_proc(PMINI_ADAPTER ps_adapter)
 			return STATUS_FAILURE;
 		}
 	}
-	return STATUS_SUCCESS;
+	return status;
 }
 
 int InitCardAndDownloadFirmware(PMINI_ADAPTER ps_adapter)
@@ -1215,6 +1223,7 @@ static unsigned char *ReadMacAddrEEPROM(PMINI_ADAPTER Adapter, ulong dwAddress)
 	int status = 0, i = 0;
 	unsigned int temp = 0;
 	unsigned char *pucmacaddr = kmalloc(MAC_ADDRESS_SIZE, GFP_KERNEL);
+	int bytes;
 
 	if (!pucmacaddr) {
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "No Buffers to Read the EEPROM Address\n");
@@ -1231,8 +1240,9 @@ static unsigned char *ReadMacAddrEEPROM(PMINI_ADAPTER Adapter, ulong dwAddress)
 	}
 
 	for (i = 0; i < MAC_ADDRESS_SIZE; i++) {
-		status = rdmalt(Adapter, EEPROM_READ_DATA_Q_REG, &temp, sizeof(temp));
-		if (status != STATUS_SUCCESS) {
+		bytes = rdmalt(Adapter, EEPROM_READ_DATA_Q_REG, &temp, sizeof(temp));
+		if (bytes < 0) {
+			status = bytes;
 			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "rdm Failed..\n");
 			kfree(pucmacaddr);
 			pucmacaddr = NULL;
@@ -1574,11 +1584,13 @@ void update_per_sf_desc_cnts(PMINI_ADAPTER Adapter)
 {
 	INT iIndex = 0;
 	u32 uibuff[MAX_TARGET_DSX_BUFFERS];
+	int bytes;
 
 	if (!atomic_read(&Adapter->uiMBupdate))
 		return;
 
-	if (rdmaltWithLock(Adapter, TARGET_SFID_TXDESC_MAP_LOC, (PUINT)uibuff, sizeof(UINT) * MAX_TARGET_DSX_BUFFERS) < 0) {
+	bytes = rdmaltWithLock(Adapter, TARGET_SFID_TXDESC_MAP_LOC, (PUINT)uibuff, sizeof(UINT) * MAX_TARGET_DSX_BUFFERS);
+	if (bytes < 0) {
 		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "rdm failed\n");
 		return;
 	}
diff --git a/drivers/staging/bcm/hostmibs.c b/drivers/staging/bcm/hostmibs.c
index c13ea5c9a2aa..101c4e31249e 100644
--- a/drivers/staging/bcm/hostmibs.c
+++ b/drivers/staging/bcm/hostmibs.c
@@ -1,4 +1,3 @@
-
 /*
  * File Name: hostmibs.c
  *
@@ -6,73 +5,72 @@
  *
  * Abstract: This file contains the routines to copy the statistics used by
  * the driver to the Host MIBS structure and giving the same to Application.
- *
  */
+
 #include "headers.h"
 
-INT  ProcessGetHostMibs(PMINI_ADAPTER Adapter, S_MIBS_HOST_STATS_MIBS *pstHostMibs)
+INT ProcessGetHostMibs(PMINI_ADAPTER Adapter, S_MIBS_HOST_STATS_MIBS *pstHostMibs)
 {
-	S_SERVICEFLOW_ENTRY    *pstServiceFlowEntry = NULL;
-	S_PHS_RULE             *pstPhsRule          = NULL;
-	S_CLASSIFIER_TABLE     *pstClassifierTable  = NULL;
-	S_CLASSIFIER_ENTRY     *pstClassifierRule   = NULL;
-	PPHS_DEVICE_EXTENSION  pDeviceExtension     = (PPHS_DEVICE_EXTENSION)&Adapter->stBCMPhsContext;
+	S_SERVICEFLOW_ENTRY *pstServiceFlowEntry = NULL;
+	S_PHS_RULE *pstPhsRule = NULL;
+	S_CLASSIFIER_TABLE *pstClassifierTable = NULL;
+	S_CLASSIFIER_ENTRY *pstClassifierRule = NULL;
+	PPHS_DEVICE_EXTENSION pDeviceExtension = (PPHS_DEVICE_EXTENSION) &Adapter->stBCMPhsContext;
 
-	UINT nClassifierIndex = 0, nPhsTableIndex = 0,nSfIndex = 0, uiIndex = 0;
+	UINT nClassifierIndex = 0, nPhsTableIndex = 0, nSfIndex = 0, uiIndex = 0;
 
-	if(pDeviceExtension == NULL)
-	{
-		BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, HOST_MIBS, DBG_LVL_ALL, "Invalid Device Extension\n");
+	if (pDeviceExtension == NULL) {
+		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, HOST_MIBS, DBG_LVL_ALL, "Invalid Device Extension\n");
 		return STATUS_FAILURE;
 	}
 
-	//Copy the classifier Table
-	for(nClassifierIndex=0; nClassifierIndex < MAX_CLASSIFIERS;
-			nClassifierIndex++)
-	{
-		if(Adapter->astClassifierTable[nClassifierIndex].bUsed == TRUE)
-			memcpy((PVOID)&pstHostMibs->astClassifierTable[nClassifierIndex],
-				(PVOID)&Adapter->astClassifierTable[nClassifierIndex],
-				sizeof(S_MIBS_CLASSIFIER_RULE));
+	/* Copy the classifier Table */
+	for (nClassifierIndex = 0; nClassifierIndex < MAX_CLASSIFIERS; nClassifierIndex++) {
+		if (Adapter->astClassifierTable[nClassifierIndex].bUsed == TRUE)
+			memcpy((PVOID) & pstHostMibs->
+			       astClassifierTable[nClassifierIndex],
+			       (PVOID) & Adapter->
+			       astClassifierTable[nClassifierIndex],
+			       sizeof(S_MIBS_CLASSIFIER_RULE));
 	}
 
-  //Copy the SF Table
-	for(nSfIndex=0; nSfIndex < NO_OF_QUEUES ; nSfIndex++)
-	{
-	if(Adapter->PackInfo[nSfIndex].bValid)
-	{
-			memcpy((PVOID)&pstHostMibs->astSFtable[nSfIndex],(PVOID)&Adapter->PackInfo[nSfIndex],sizeof(S_MIBS_SERVICEFLOW_TABLE));
-	}
-	else
-	{
-		//if index in not valid, don't process this for the PHS table. Go For the next entry.
-		continue ;
-	}
+	/* Copy the SF Table */
+	for (nSfIndex = 0; nSfIndex < NO_OF_QUEUES; nSfIndex++) {
+		if (Adapter->PackInfo[nSfIndex].bValid) {
+			memcpy((PVOID) & pstHostMibs->astSFtable[nSfIndex],
+			       (PVOID) & Adapter->PackInfo[nSfIndex],
+			       sizeof(S_MIBS_SERVICEFLOW_TABLE));
+		} else {
+			/* If index in not valid,
+			 * don't process this for the PHS table.
+			 * Go For the next entry.
+			 */
+			continue;
+		}
 
-		//Retrieve the SFID Entry Index for requested Service Flow
-		if(PHS_INVALID_TABLE_INDEX == GetServiceFlowEntry(pDeviceExtension->pstServiceFlowPhsRulesTable,
-						  Adapter->PackInfo[nSfIndex].usVCID_Value ,&pstServiceFlowEntry))
-		{
+		/* Retrieve the SFID Entry Index for requested Service Flow */
+		if (PHS_INVALID_TABLE_INDEX ==
+		    GetServiceFlowEntry(pDeviceExtension->
+					pstServiceFlowPhsRulesTable,
+					Adapter->PackInfo[nSfIndex].
+					usVCID_Value, &pstServiceFlowEntry))
 
-		continue;
-		}
+			continue;
 
 		pstClassifierTable = pstServiceFlowEntry->pstClassifierTable;
 
-
-		for(uiIndex = 0; uiIndex < MAX_PHSRULE_PER_SF; uiIndex++)
-		{
+		for (uiIndex = 0; uiIndex < MAX_PHSRULE_PER_SF; uiIndex++) {
 			pstClassifierRule = &pstClassifierTable->stActivePhsRulesList[uiIndex];
 
-		if(pstClassifierRule->bUsed)
-		{
-			pstPhsRule = pstClassifierRule->pstPhsRule;
+			if (pstClassifierRule->bUsed) {
+				pstPhsRule = pstClassifierRule->pstPhsRule;
 
-			pstHostMibs->astPhsRulesTable[nPhsTableIndex].ulSFID = Adapter->PackInfo[nSfIndex].ulSFID;
+				pstHostMibs->astPhsRulesTable[nPhsTableIndex].
+				    ulSFID = Adapter->PackInfo[nSfIndex].ulSFID;
 
-			memcpy(&pstHostMibs->astPhsRulesTable[nPhsTableIndex].u8PHSI,
-						&pstPhsRule->u8PHSI,
-						sizeof(S_PHS_RULE));
+				memcpy(&pstHostMibs->
+				       astPhsRulesTable[nPhsTableIndex].u8PHSI,
+				       &pstPhsRule->u8PHSI, sizeof(S_PHS_RULE));
 				nPhsTableIndex++;
 
 			}
@@ -81,65 +79,63 @@ INT  ProcessGetHostMibs(PMINI_ADAPTER Adapter, S_MIBS_HOST_STATS_MIBS *pstHostMi
 
 	}
 
-
-	//copy other Host Statistics parameters
+	/* Copy other Host Statistics parameters */
 	pstHostMibs->stHostInfo.GoodTransmits = Adapter->dev->stats.tx_packets;
 	pstHostMibs->stHostInfo.GoodReceives = Adapter->dev->stats.rx_packets;
-	pstHostMibs->stHostInfo.CurrNumFreeDesc =
-			atomic_read(&Adapter->CurrNumFreeTxDesc);
+	pstHostMibs->stHostInfo.CurrNumFreeDesc = atomic_read(&Adapter->CurrNumFreeTxDesc);
 	pstHostMibs->stHostInfo.BEBucketSize = Adapter->BEBucketSize;
 	pstHostMibs->stHostInfo.rtPSBucketSize = Adapter->rtPSBucketSize;
 	pstHostMibs->stHostInfo.TimerActive = Adapter->TimerActive;
 	pstHostMibs->stHostInfo.u32TotalDSD = Adapter->u32TotalDSD;
 
-	memcpy(pstHostMibs->stHostInfo.aTxPktSizeHist,Adapter->aTxPktSizeHist,sizeof(UINT32)*MIBS_MAX_HIST_ENTRIES);
-	memcpy(pstHostMibs->stHostInfo.aRxPktSizeHist,Adapter->aRxPktSizeHist,sizeof(UINT32)*MIBS_MAX_HIST_ENTRIES);
+	memcpy(pstHostMibs->stHostInfo.aTxPktSizeHist, Adapter->aTxPktSizeHist, sizeof(UINT32) * MIBS_MAX_HIST_ENTRIES);
+	memcpy(pstHostMibs->stHostInfo.aRxPktSizeHist, Adapter->aRxPktSizeHist, sizeof(UINT32) * MIBS_MAX_HIST_ENTRIES);
 
 	return STATUS_SUCCESS;
 }
 
-
 VOID GetDroppedAppCntrlPktMibs(S_MIBS_HOST_STATS_MIBS *pstHostMibs, const PPER_TARANG_DATA pTarang)
 {
 	memcpy(&(pstHostMibs->stDroppedAppCntrlMsgs),
-	       &(pTarang->stDroppedAppCntrlMsgs),sizeof(S_MIBS_DROPPED_APP_CNTRL_MESSAGES));
+	       &(pTarang->stDroppedAppCntrlMsgs),
+	       sizeof(S_MIBS_DROPPED_APP_CNTRL_MESSAGES));
 }
 
-
-VOID CopyMIBSExtendedSFParameters(PMINI_ADAPTER Adapter,
-		CServiceFlowParamSI *psfLocalSet, UINT uiSearchRuleIndex)
+VOID CopyMIBSExtendedSFParameters(PMINI_ADAPTER Adapter, CServiceFlowParamSI *psfLocalSet, UINT uiSearchRuleIndex)
 {
-	Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfSfid = psfLocalSet->u32SFID;
-	Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsMaxSustainedRate = psfLocalSet->u32MaxSustainedTrafficRate;
-	Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsMaxTrafficBurst = psfLocalSet->u32MaxTrafficBurst;
-	Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsMinReservedRate = psfLocalSet->u32MinReservedTrafficRate;
-	Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsToleratedJitter = psfLocalSet->u32ToleratedJitter;
-	Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsMaxLatency = psfLocalSet->u32MaximumLatency;
-	Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsFixedVsVariableSduInd = psfLocalSet->u8FixedLengthVSVariableLengthSDUIndicator;
-	Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsFixedVsVariableSduInd = ntohl(Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsFixedVsVariableSduInd);
-	Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsSduSize = psfLocalSet->u8SDUSize;
-	Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsSduSize = ntohl(Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsSduSize);
-	Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsSfSchedulingType = psfLocalSet->u8ServiceFlowSchedulingType;
-	Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsSfSchedulingType = ntohl(Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsSfSchedulingType);
-	Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsArqEnable = psfLocalSet->u8ARQEnable;
-	Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsArqEnable = ntohl(Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsArqEnable);
-	Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsArqWindowSize = ntohs(psfLocalSet->u16ARQWindowSize);
-	Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsArqWindowSize = ntohl(Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsArqWindowSize);
-	Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsArqBlockLifetime = ntohs(psfLocalSet->u16ARQBlockLifeTime);
-	Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsArqBlockLifetime = ntohl(Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsArqBlockLifetime);
-	Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsArqSyncLossTimeout = ntohs(psfLocalSet->u16ARQSyncLossTimeOut);
-	Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsArqSyncLossTimeout = ntohl(Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsArqSyncLossTimeout);
-	Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsArqDeliverInOrder = psfLocalSet->u8ARQDeliverInOrder;
-	Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsArqDeliverInOrder = ntohl(Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsArqDeliverInOrder);
-	Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsArqRxPurgeTimeout = ntohs(psfLocalSet->u16ARQRxPurgeTimeOut);
-	Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsArqRxPurgeTimeout = ntohl(Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsArqRxPurgeTimeout);
-	Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsArqBlockSize = ntohs(psfLocalSet->u16ARQBlockSize);
-	Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsArqBlockSize = ntohl(Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsArqBlockSize);
-	Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsReqTxPolicy = psfLocalSet->u8RequesttransmissionPolicy;
-	Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsReqTxPolicy = ntohl(Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsReqTxPolicy);
-	Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnSfCsSpecification = psfLocalSet->u8CSSpecification;
-	Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnSfCsSpecification = ntohl(Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnSfCsSpecification);
-	Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsTargetSaid = ntohs(psfLocalSet->u16TargetSAID);
-	Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsTargetSaid = ntohl(Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable.wmanIfCmnCpsTargetSaid);
+	S_MIBS_EXTSERVICEFLOW_PARAMETERS *t = &Adapter->PackInfo[uiSearchRuleIndex].stMibsExtServiceFlowTable;
+
+	t->wmanIfSfid = psfLocalSet->u32SFID;
+	t->wmanIfCmnCpsMaxSustainedRate = psfLocalSet->u32MaxSustainedTrafficRate;
+	t->wmanIfCmnCpsMaxTrafficBurst = psfLocalSet->u32MaxTrafficBurst;
+	t->wmanIfCmnCpsMinReservedRate = psfLocalSet->u32MinReservedTrafficRate;
+	t->wmanIfCmnCpsToleratedJitter = psfLocalSet->u32ToleratedJitter;
+	t->wmanIfCmnCpsMaxLatency = psfLocalSet->u32MaximumLatency;
+	t->wmanIfCmnCpsFixedVsVariableSduInd = psfLocalSet->u8FixedLengthVSVariableLengthSDUIndicator;
+	t->wmanIfCmnCpsFixedVsVariableSduInd = ntohl(t->wmanIfCmnCpsFixedVsVariableSduInd);
+	t->wmanIfCmnCpsSduSize = psfLocalSet->u8SDUSize;
+	t->wmanIfCmnCpsSduSize = ntohl(t->wmanIfCmnCpsSduSize);
+	t->wmanIfCmnCpsSfSchedulingType = psfLocalSet->u8ServiceFlowSchedulingType;
+	t->wmanIfCmnCpsSfSchedulingType = ntohl(t->wmanIfCmnCpsSfSchedulingType);
+	t->wmanIfCmnCpsArqEnable = psfLocalSet->u8ARQEnable;
+	t->wmanIfCmnCpsArqEnable = ntohl(t->wmanIfCmnCpsArqEnable);
+	t->wmanIfCmnCpsArqWindowSize = ntohs(psfLocalSet->u16ARQWindowSize);
+	t->wmanIfCmnCpsArqWindowSize = ntohl(t->wmanIfCmnCpsArqWindowSize);
+	t->wmanIfCmnCpsArqBlockLifetime = ntohs(psfLocalSet->u16ARQBlockLifeTime);
+	t->wmanIfCmnCpsArqBlockLifetime = ntohl(t->wmanIfCmnCpsArqBlockLifetime);
+	t->wmanIfCmnCpsArqSyncLossTimeout = ntohs(psfLocalSet->u16ARQSyncLossTimeOut);
+	t->wmanIfCmnCpsArqSyncLossTimeout = ntohl(t->wmanIfCmnCpsArqSyncLossTimeout);
+	t->wmanIfCmnCpsArqDeliverInOrder = psfLocalSet->u8ARQDeliverInOrder;
+	t->wmanIfCmnCpsArqDeliverInOrder = ntohl(t->wmanIfCmnCpsArqDeliverInOrder);
+	t->wmanIfCmnCpsArqRxPurgeTimeout = ntohs(psfLocalSet->u16ARQRxPurgeTimeOut);
+	t->wmanIfCmnCpsArqRxPurgeTimeout = ntohl(t->wmanIfCmnCpsArqRxPurgeTimeout);
+	t->wmanIfCmnCpsArqBlockSize = ntohs(psfLocalSet->u16ARQBlockSize);
+	t->wmanIfCmnCpsArqBlockSize = ntohl(t->wmanIfCmnCpsArqBlockSize);
+	t->wmanIfCmnCpsReqTxPolicy = psfLocalSet->u8RequesttransmissionPolicy;
+	t->wmanIfCmnCpsReqTxPolicy = ntohl(t->wmanIfCmnCpsReqTxPolicy);
+	t->wmanIfCmnSfCsSpecification = psfLocalSet->u8CSSpecification;
+	t->wmanIfCmnSfCsSpecification = ntohl(t->wmanIfCmnSfCsSpecification);
+	t->wmanIfCmnCpsTargetSaid = ntohs(psfLocalSet->u16TargetSAID);
+	t->wmanIfCmnCpsTargetSaid = ntohl(t->wmanIfCmnCpsTargetSaid);
 
 }
diff --git a/drivers/staging/bcm/led_control.c b/drivers/staging/bcm/led_control.c
index 16e939fa15d6..c7f488629722 100644
--- a/drivers/staging/bcm/led_control.c
+++ b/drivers/staging/bcm/led_control.c
@@ -5,65 +5,69 @@
 
 static B_UINT16 CFG_CalculateChecksum(B_UINT8 *pu8Buffer, B_UINT32 u32Size)
 {
-	B_UINT16 	u16CheckSum=0;
-	while(u32Size--) {
+	B_UINT16 u16CheckSum = 0;
+	while (u32Size--) {
 		u16CheckSum += (B_UINT8)~(*pu8Buffer);
-	    pu8Buffer++;
+		pu8Buffer++;
 	}
 	return u16CheckSum;
 }
+
 BOOLEAN IsReqGpioIsLedInNVM(PMINI_ADAPTER Adapter, UINT gpios)
 {
-	INT Status ;
-	Status = (Adapter->gpioBitMap & gpios) ^ gpios ;
-	if(Status)
+	INT Status;
+	Status = (Adapter->gpioBitMap & gpios) ^ gpios;
+	if (Status)
 		return FALSE;
 	else
 		return TRUE;
 }
 
-static INT LED_Blink(PMINI_ADAPTER Adapter, UINT GPIO_Num, UCHAR uiLedIndex, ULONG timeout, INT num_of_time, LedEventInfo_t currdriverstate)
+static INT LED_Blink(PMINI_ADAPTER Adapter, UINT GPIO_Num, UCHAR uiLedIndex,
+		ULONG timeout, INT num_of_time, LedEventInfo_t currdriverstate)
 {
 	int Status = STATUS_SUCCESS;
 	BOOLEAN bInfinite = FALSE;
 
-	/*Check if num_of_time is -ve. If yes, blink led in infinite loop*/
-	if(num_of_time < 0)
-	{
+	/* Check if num_of_time is -ve. If yes, blink led in infinite loop */
+	if (num_of_time < 0) {
 		bInfinite = TRUE;
 		num_of_time = 1;
 	}
-	while(num_of_time)
-	{
-
-		if(currdriverstate == Adapter->DriverState)
+	while (num_of_time) {
+		if (currdriverstate == Adapter->DriverState)
 			TURN_ON_LED(GPIO_Num, uiLedIndex);
 
-		/*Wait for timeout after setting on the LED*/
-		Status = wait_event_interruptible_timeout(Adapter->LEDInfo.notify_led_event,
-					currdriverstate != Adapter->DriverState || kthread_should_stop(),
-					msecs_to_jiffies(timeout));
-
-		if(kthread_should_stop())
-		{
-			BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, LED_DUMP_INFO, DBG_LVL_ALL, "Led thread got signal to exit..hence exiting");
-			Adapter->LEDInfo.led_thread_running= BCM_LED_THREAD_DISABLED;
+		/* Wait for timeout after setting on the LED */
+		Status = wait_event_interruptible_timeout(
+				Adapter->LEDInfo.notify_led_event,
+				currdriverstate != Adapter->DriverState ||
+					kthread_should_stop(),
+				msecs_to_jiffies(timeout));
+
+		if (kthread_should_stop()) {
+			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, LED_DUMP_INFO,
+				DBG_LVL_ALL,
+				"Led thread got signal to exit..hence exiting");
+			Adapter->LEDInfo.led_thread_running =
+					BCM_LED_THREAD_DISABLED;
 			TURN_OFF_LED(GPIO_Num, uiLedIndex);
-			Status=EVENT_SIGNALED;
+			Status = EVENT_SIGNALED;
 			break;
 		}
-		if(Status)
-		{
+		if (Status) {
 			TURN_OFF_LED(GPIO_Num, uiLedIndex);
-			Status=EVENT_SIGNALED;
+			Status = EVENT_SIGNALED;
 			break;
 		}
 
 		TURN_OFF_LED(GPIO_Num, uiLedIndex);
-		Status = wait_event_interruptible_timeout(Adapter->LEDInfo.notify_led_event,
-					currdriverstate!= Adapter->DriverState || kthread_should_stop(),
-					msecs_to_jiffies(timeout));
-		if(bInfinite == FALSE)
+		Status = wait_event_interruptible_timeout(
+				Adapter->LEDInfo.notify_led_event,
+				currdriverstate != Adapter->DriverState ||
+					kthread_should_stop(),
+				msecs_to_jiffies(timeout));
+		if (bInfinite == FALSE)
 			num_of_time--;
 	}
 	return Status;
@@ -71,19 +75,19 @@ static INT LED_Blink(PMINI_ADAPTER Adapter, UINT GPIO_Num, UCHAR uiLedIndex, ULO
 
 static INT ScaleRateofTransfer(ULONG rate)
 {
-	if(rate <= 3)
+	if (rate <= 3)
 		return rate;
-	else if((rate > 3) && (rate <= 100))
+	else if ((rate > 3) && (rate <= 100))
 		return 5;
-	else if((rate > 100) && (rate <= 200))
+	else if ((rate > 100) && (rate <= 200))
 		return 6;
-	else if((rate > 200) && (rate <= 300))
+	else if ((rate > 200) && (rate <= 300))
 		return 7;
-	else if((rate > 300) && (rate <= 400))
+	else if ((rate > 300) && (rate <= 400))
 		return 8;
-	else if((rate > 400) && (rate <= 500))
+	else if ((rate > 400) && (rate <= 500))
 		return 9;
-	else if((rate > 500) && (rate <= 600))
+	else if ((rate > 500) && (rate <= 600))
 		return 10;
 	else
 		return MAX_NUM_OF_BLINKS;
@@ -92,215 +96,232 @@ static INT ScaleRateofTransfer(ULONG rate)
 
 
 static INT LED_Proportional_Blink(PMINI_ADAPTER Adapter, UCHAR GPIO_Num_tx,
-		UCHAR uiTxLedIndex, UCHAR GPIO_Num_rx, UCHAR uiRxLedIndex, LedEventInfo_t currdriverstate)
+		UCHAR uiTxLedIndex, UCHAR GPIO_Num_rx, UCHAR uiRxLedIndex,
+		LedEventInfo_t currdriverstate)
 {
-	/* Initial values of TX and RX packets*/
+	/* Initial values of TX and RX packets */
 	ULONG64 Initial_num_of_packts_tx = 0, Initial_num_of_packts_rx = 0;
-	/*values of TX and RX packets after 1 sec*/
+	/* values of TX and RX packets after 1 sec */
 	ULONG64 Final_num_of_packts_tx = 0, Final_num_of_packts_rx = 0;
-	/*Rate of transfer of Tx and Rx in 1 sec*/
+	/* Rate of transfer of Tx and Rx in 1 sec */
 	ULONG64 rate_of_transfer_tx = 0, rate_of_transfer_rx = 0;
 	int Status = STATUS_SUCCESS;
 	INT num_of_time = 0, num_of_time_tx = 0, num_of_time_rx = 0;
 	UINT remDelay = 0;
 	BOOLEAN bBlinkBothLED = TRUE;
-	//UINT GPIO_num = DISABLE_GPIO_NUM;
+	/* UINT GPIO_num = DISABLE_GPIO_NUM; */
 	ulong timeout = 0;
 
-	/*Read initial value of packets sent/received */
+	/* Read initial value of packets sent/received */
 	Initial_num_of_packts_tx = Adapter->dev->stats.tx_packets;
 	Initial_num_of_packts_rx = Adapter->dev->stats.rx_packets;
 
-	/*Scale the rate of transfer to no of blinks.*/
-	num_of_time_tx= ScaleRateofTransfer((ULONG)rate_of_transfer_tx);
-	num_of_time_rx= ScaleRateofTransfer((ULONG)rate_of_transfer_rx);
+	/* Scale the rate of transfer to no of blinks. */
+	num_of_time_tx = ScaleRateofTransfer((ULONG)rate_of_transfer_tx);
+	num_of_time_rx = ScaleRateofTransfer((ULONG)rate_of_transfer_rx);
 
-	while((Adapter->device_removed == FALSE))
-	{
+	while ((Adapter->device_removed == FALSE)) {
 		timeout = 50;
-		/*Blink Tx and Rx LED when both Tx and Rx is in normal bandwidth*/
-		if(bBlinkBothLED)
-		{
-			/*Assign minimum number of blinks of either Tx or Rx.*/
-			if(num_of_time_tx > num_of_time_rx)
+		/*
+		 * Blink Tx and Rx LED when both Tx and Rx is
+		 * in normal bandwidth
+		 */
+		if (bBlinkBothLED) {
+			/*
+			 * Assign minimum number of blinks of
+			 * either Tx or Rx.
+			 */
+			if (num_of_time_tx > num_of_time_rx)
 				num_of_time = num_of_time_rx;
 			else
 				num_of_time = num_of_time_tx;
-			if(num_of_time > 0)
-			{
-				/*Blink both Tx and Rx LEDs*/
-				if(LED_Blink(Adapter, 1<<GPIO_Num_tx, uiTxLedIndex, timeout, num_of_time,currdriverstate)
+			if (num_of_time > 0) {
+				/* Blink both Tx and Rx LEDs */
+				if (LED_Blink(Adapter, 1 << GPIO_Num_tx,
+						uiTxLedIndex, timeout,
+						num_of_time, currdriverstate)
 							== EVENT_SIGNALED)
-				{
 					return EVENT_SIGNALED;
-				}
-				if(LED_Blink(Adapter, 1<<GPIO_Num_rx, uiRxLedIndex, timeout, num_of_time,currdriverstate)
+
+				if (LED_Blink(Adapter, 1 << GPIO_Num_rx,
+						uiRxLedIndex, timeout,
+						num_of_time, currdriverstate)
 							== EVENT_SIGNALED)
-				{
 					return EVENT_SIGNALED;
-				}
 
 			}
 
-			if(num_of_time == num_of_time_tx)
-			{
-				/*Blink pending rate of Rx*/
-				if(LED_Blink(Adapter, (1 << GPIO_Num_rx), uiRxLedIndex, timeout,
-						num_of_time_rx-num_of_time,currdriverstate) == EVENT_SIGNALED)
-				{
+			if (num_of_time == num_of_time_tx) {
+				/* Blink pending rate of Rx */
+				if (LED_Blink(Adapter, (1 << GPIO_Num_rx),
+						uiRxLedIndex, timeout,
+						num_of_time_rx-num_of_time,
+						currdriverstate)
+							== EVENT_SIGNALED)
 					return EVENT_SIGNALED;
-				}
+
 				num_of_time = num_of_time_rx;
-			}
-			else
-			{
-				/*Blink pending rate of Tx*/
-				if(LED_Blink(Adapter, 1<<GPIO_Num_tx, uiTxLedIndex, timeout,
-					num_of_time_tx-num_of_time,currdriverstate) == EVENT_SIGNALED)
-				{
+			} else {
+				/* Blink pending rate of Tx */
+				if (LED_Blink(Adapter, 1 << GPIO_Num_tx,
+						uiTxLedIndex, timeout,
+						num_of_time_tx-num_of_time,
+						currdriverstate)
+							== EVENT_SIGNALED)
 					return EVENT_SIGNALED;
-				}
+
 				num_of_time = num_of_time_tx;
 			}
-		}
-		else
-		{
-			if(num_of_time == num_of_time_tx)
-			{
-				/*Blink pending rate of Rx*/
-				if(LED_Blink(Adapter, 1<<GPIO_Num_tx, uiTxLedIndex, timeout, num_of_time,currdriverstate)
+		} else {
+			if (num_of_time == num_of_time_tx) {
+				/* Blink pending rate of Rx */
+				if (LED_Blink(Adapter, 1 << GPIO_Num_tx,
+						uiTxLedIndex, timeout,
+						num_of_time, currdriverstate)
 							== EVENT_SIGNALED)
-				{
 					return EVENT_SIGNALED;
-				}
-			}
-			else
-			{
-				/*Blink pending rate of Tx*/
-				if(LED_Blink(Adapter, 1<<GPIO_Num_rx, uiRxLedIndex, timeout,
-						num_of_time,currdriverstate) == EVENT_SIGNALED)
-				{
+			} else {
+				/* Blink pending rate of Tx */
+				if (LED_Blink(Adapter, 1 << GPIO_Num_rx,
+						uiRxLedIndex, timeout,
+						num_of_time, currdriverstate)
+							== EVENT_SIGNALED)
 					return EVENT_SIGNALED;
-				}
 			}
 		}
-		/* If Tx/Rx rate is less than maximum blinks per second,
-			 * wait till delay completes to 1 second
-			 */
+
+		/*
+		 * If Tx/Rx rate is less than maximum blinks per second,
+		 * wait till delay completes to 1 second
+		 */
 		remDelay = MAX_NUM_OF_BLINKS - num_of_time;
-		if(remDelay > 0)
-		{
-			timeout= 100 * remDelay;
-			Status = wait_event_interruptible_timeout(Adapter->LEDInfo.notify_led_event,
-						currdriverstate!= Adapter->DriverState ||kthread_should_stop() ,
-						msecs_to_jiffies (timeout));
-
-			if(kthread_should_stop())
-			{
-				BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, LED_DUMP_INFO, DBG_LVL_ALL, "Led thread got signal to exit..hence exiting");
-				Adapter->LEDInfo.led_thread_running= BCM_LED_THREAD_DISABLED;
+		if (remDelay > 0) {
+			timeout = 100 * remDelay;
+			Status = wait_event_interruptible_timeout(
+					Adapter->LEDInfo.notify_led_event,
+					currdriverstate != Adapter->DriverState
+						|| kthread_should_stop(),
+					msecs_to_jiffies(timeout));
+
+			if (kthread_should_stop()) {
+				BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS,
+					LED_DUMP_INFO, DBG_LVL_ALL,
+					"Led thread got signal to exit..hence exiting");
+				Adapter->LEDInfo.led_thread_running =
+						BCM_LED_THREAD_DISABLED;
 				return EVENT_SIGNALED;
 			}
-			if(Status)
+			if (Status)
 				return EVENT_SIGNALED;
 		}
 
-		/*Turn off both Tx and Rx LEDs before next second*/
-		TURN_OFF_LED(1<<GPIO_Num_tx, uiTxLedIndex);
-		TURN_OFF_LED(1<<GPIO_Num_rx, uiTxLedIndex);
+		/* Turn off both Tx and Rx LEDs before next second */
+		TURN_OFF_LED(1 << GPIO_Num_tx, uiTxLedIndex);
+		TURN_OFF_LED(1 << GPIO_Num_rx, uiTxLedIndex);
 
 		/*
- 		 * Read the Tx & Rx packets transmission after 1 second and
- 		 * calculate rate of transfer
- 		 */
+		 * Read the Tx & Rx packets transmission after 1 second and
+		 * calculate rate of transfer
+		 */
 		Final_num_of_packts_tx = Adapter->dev->stats.tx_packets;
 		Final_num_of_packts_rx = Adapter->dev->stats.rx_packets;
 
-		rate_of_transfer_tx = Final_num_of_packts_tx - Initial_num_of_packts_tx;
-		rate_of_transfer_rx = Final_num_of_packts_rx - Initial_num_of_packts_rx;
+		rate_of_transfer_tx = Final_num_of_packts_tx -
+						Initial_num_of_packts_tx;
+		rate_of_transfer_rx = Final_num_of_packts_rx -
+						Initial_num_of_packts_rx;
 
-		/*Read initial value of packets sent/received */
+		/* Read initial value of packets sent/received */
 		Initial_num_of_packts_tx = Final_num_of_packts_tx;
-		Initial_num_of_packts_rx = Final_num_of_packts_rx ;
+		Initial_num_of_packts_rx = Final_num_of_packts_rx;
 
-		/*Scale the rate of transfer to no of blinks.*/
-		num_of_time_tx= ScaleRateofTransfer((ULONG)rate_of_transfer_tx);
-		num_of_time_rx= ScaleRateofTransfer((ULONG)rate_of_transfer_rx);
+		/* Scale the rate of transfer to no of blinks. */
+		num_of_time_tx =
+			ScaleRateofTransfer((ULONG)rate_of_transfer_tx);
+		num_of_time_rx =
+			ScaleRateofTransfer((ULONG)rate_of_transfer_rx);
 
 	}
 	return Status;
 }
 
-
-//-----------------------------------------------------------------------------
-// Procedure:   ValidateDSDParamsChecksum
-//
-// Description: Reads DSD Params and validates checkusm.
-//
-// Arguments:
-//      Adapter - Pointer to Adapter structure.
-//      ulParamOffset - Start offset of the DSD parameter to be read and validated.
-//      usParamLen - Length of the DSD Parameter.
-//
-// Returns:
-//  <OSAL_STATUS_CODE>
-//-----------------------------------------------------------------------------
-
-static INT ValidateDSDParamsChecksum(
-													PMINI_ADAPTER Adapter,
-													ULONG  ulParamOffset,
-													USHORT usParamLen )
+/*
+ * -----------------------------------------------------------------------------
+ * Procedure:   ValidateDSDParamsChecksum
+ *
+ * Description: Reads DSD Params and validates checkusm.
+ *
+ * Arguments:
+ *      Adapter - Pointer to Adapter structure.
+ *      ulParamOffset - Start offset of the DSD parameter to be read and
+ *			validated.
+ *      usParamLen - Length of the DSD Parameter.
+ *
+ * Returns:
+ *  <OSAL_STATUS_CODE>
+ * -----------------------------------------------------------------------------
+ */
+static INT ValidateDSDParamsChecksum(PMINI_ADAPTER Adapter, ULONG ulParamOffset,
+					USHORT usParamLen)
 {
 	INT Status = STATUS_SUCCESS;
-	PUCHAR puBuffer 		    = NULL;
-	USHORT usChksmOrg		    = 0;
+	PUCHAR puBuffer = NULL;
+	USHORT usChksmOrg = 0;
 	USHORT usChecksumCalculated = 0;
 
-	BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, LED_DUMP_INFO, DBG_LVL_ALL,"LED Thread:ValidateDSDParamsChecksum: 0x%lx 0x%X",ulParamOffset, usParamLen);
+	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, LED_DUMP_INFO, DBG_LVL_ALL,
+		"LED Thread:ValidateDSDParamsChecksum: 0x%lx 0x%X",
+		ulParamOffset, usParamLen);
 
 	puBuffer = kmalloc(usParamLen, GFP_KERNEL);
-	if(!puBuffer)
-	{
-		BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, LED_DUMP_INFO, DBG_LVL_ALL,"LED Thread: ValidateDSDParamsChecksum Allocation failed");
+	if (!puBuffer) {
+		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, LED_DUMP_INFO,
+			DBG_LVL_ALL,
+			"LED Thread: ValidateDSDParamsChecksum Allocation failed");
 		return -ENOMEM;
 
 	}
 
-    //
-    //	Read the DSD data from the parameter offset.
-    //
-	if(STATUS_SUCCESS != BeceemNVMRead(Adapter,(PUINT)puBuffer,ulParamOffset,usParamLen))
-	{
-		BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, LED_DUMP_INFO, DBG_LVL_ALL,"LED Thread: ValidateDSDParamsChecksum BeceemNVMRead failed");
-		Status=STATUS_IMAGE_CHECKSUM_MISMATCH;
+	/* Read the DSD data from the parameter offset. */
+	if (STATUS_SUCCESS != BeceemNVMRead(Adapter, (PUINT)puBuffer,
+			ulParamOffset, usParamLen)) {
+		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, LED_DUMP_INFO,
+			DBG_LVL_ALL,
+			"LED Thread: ValidateDSDParamsChecksum BeceemNVMRead failed");
+		Status = STATUS_IMAGE_CHECKSUM_MISMATCH;
 		goto exit;
 	}
 
-	//
-	//	Calculate the checksum of the data read from the DSD parameter.
-	//
-	usChecksumCalculated = CFG_CalculateChecksum(puBuffer,usParamLen);
-	BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, LED_DUMP_INFO, DBG_LVL_ALL,"LED Thread: usCheckSumCalculated = 0x%x\n", usChecksumCalculated);
-
-	//
-	//	End of the DSD parameter will have a TWO bytes checksum stored in it. Read it and compare with the calculated
-	//	Checksum.
-	//
-	if(STATUS_SUCCESS != BeceemNVMRead(Adapter,(PUINT)&usChksmOrg,ulParamOffset+usParamLen,2))
-	{
-		BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, LED_DUMP_INFO, DBG_LVL_ALL,"LED Thread: ValidateDSDParamsChecksum BeceemNVMRead failed");
-		Status=STATUS_IMAGE_CHECKSUM_MISMATCH;
+	/* Calculate the checksum of the data read from the DSD parameter. */
+	usChecksumCalculated = CFG_CalculateChecksum(puBuffer, usParamLen);
+	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, LED_DUMP_INFO, DBG_LVL_ALL,
+		"LED Thread: usCheckSumCalculated = 0x%x\n",
+		usChecksumCalculated);
+
+	/*
+	 * End of the DSD parameter will have a TWO bytes checksum stored in it.
+	 * Read it and compare with the calculated Checksum.
+	 */
+	if (STATUS_SUCCESS != BeceemNVMRead(Adapter, (PUINT)&usChksmOrg,
+			ulParamOffset+usParamLen, 2)) {
+		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, LED_DUMP_INFO,
+			DBG_LVL_ALL,
+			"LED Thread: ValidateDSDParamsChecksum BeceemNVMRead failed");
+		Status = STATUS_IMAGE_CHECKSUM_MISMATCH;
 		goto exit;
 	}
 	usChksmOrg = ntohs(usChksmOrg);
-	BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, LED_DUMP_INFO, DBG_LVL_ALL,"LED Thread: usChksmOrg = 0x%x", usChksmOrg);
-
-	//
-	//  	Compare the checksum calculated with the checksum read from DSD section
-	//
-	if(usChecksumCalculated ^ usChksmOrg)
-	{
-		BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, LED_DUMP_INFO, DBG_LVL_ALL,"LED Thread: ValidateDSDParamsChecksum: Checksums don't match");
+	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, LED_DUMP_INFO, DBG_LVL_ALL,
+		"LED Thread: usChksmOrg = 0x%x", usChksmOrg);
+
+	/*
+	 * Compare the checksum calculated with the checksum read
+	 * from DSD section
+	 */
+	if (usChecksumCalculated ^ usChksmOrg) {
+		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, LED_DUMP_INFO,
+			DBG_LVL_ALL,
+			"LED Thread: ValidateDSDParamsChecksum: Checksums don't match");
 		Status = STATUS_IMAGE_CHECKSUM_MISMATCH;
 		goto exit;
 	}
@@ -311,523 +332,526 @@ exit:
 }
 
 
-//-----------------------------------------------------------------------------
-// Procedure:   ValidateHWParmStructure
-//
-// Description: Validates HW Parameters.
-//
-// Arguments:
-//      Adapter - Pointer to Adapter structure.
-//      ulHwParamOffset - Start offset of the HW parameter Section to be read and validated.
-//
-// Returns:
-//  <OSAL_STATUS_CODE>
-//-----------------------------------------------------------------------------
-
+/*
+ * -----------------------------------------------------------------------------
+ * Procedure:   ValidateHWParmStructure
+ *
+ * Description: Validates HW Parameters.
+ *
+ * Arguments:
+ *      Adapter - Pointer to Adapter structure.
+ *      ulHwParamOffset - Start offset of the HW parameter Section to be read
+ *				and validated.
+ *
+ * Returns:
+ *  <OSAL_STATUS_CODE>
+ * -----------------------------------------------------------------------------
+ */
 static INT ValidateHWParmStructure(PMINI_ADAPTER Adapter, ULONG ulHwParamOffset)
 {
 
-	INT Status = STATUS_SUCCESS ;
+	INT Status = STATUS_SUCCESS;
 	USHORT HwParamLen = 0;
-	// Add DSD start offset to the hwParamOffset to get the actual address.
+	/*
+	 * Add DSD start offset to the hwParamOffset to get
+	 * the actual address.
+	 */
 	ulHwParamOffset += DSD_START_OFFSET;
 
-	/*Read the Length of HW_PARAM structure*/
-	BeceemNVMRead(Adapter,(PUINT)&HwParamLen,ulHwParamOffset,2);
+	/* Read the Length of HW_PARAM structure */
+	BeceemNVMRead(Adapter, (PUINT)&HwParamLen, ulHwParamOffset, 2);
 	HwParamLen = ntohs(HwParamLen);
-	if(0==HwParamLen || HwParamLen > Adapter->uiNVMDSDSize)
-	{
+	if (0 == HwParamLen || HwParamLen > Adapter->uiNVMDSDSize)
 		return STATUS_IMAGE_CHECKSUM_MISMATCH;
-	}
 
-	BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, LED_DUMP_INFO, DBG_LVL_ALL, "LED Thread:HwParamLen = 0x%x", HwParamLen);
-	Status =ValidateDSDParamsChecksum(Adapter,ulHwParamOffset,HwParamLen);
+	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, LED_DUMP_INFO, DBG_LVL_ALL,
+		"LED Thread:HwParamLen = 0x%x", HwParamLen);
+	Status = ValidateDSDParamsChecksum(Adapter, ulHwParamOffset,
+						HwParamLen);
 	return Status;
 } /* ValidateHWParmStructure() */
 
-static int ReadLEDInformationFromEEPROM(PMINI_ADAPTER Adapter, UCHAR GPIO_Array[])
+static int ReadLEDInformationFromEEPROM(PMINI_ADAPTER Adapter,
+					UCHAR GPIO_Array[])
 {
 	int Status = STATUS_SUCCESS;
 
-	ULONG  dwReadValue 		= 0;
-	USHORT usHwParamData 	= 0;
-	USHORT usEEPROMVersion  = 0;
-	UCHAR  ucIndex 			= 0;
-	UCHAR  ucGPIOInfo[32] 	= {0};
+	ULONG  dwReadValue	= 0;
+	USHORT usHwParamData	= 0;
+	USHORT usEEPROMVersion	= 0;
+	UCHAR  ucIndex		= 0;
+	UCHAR  ucGPIOInfo[32]	= {0};
 
-	BeceemNVMRead(Adapter,(PUINT)&usEEPROMVersion,EEPROM_VERSION_OFFSET,2);
+	BeceemNVMRead(Adapter, (PUINT)&usEEPROMVersion,
+			EEPROM_VERSION_OFFSET, 2);
 
-	BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, LED_DUMP_INFO, DBG_LVL_ALL,"usEEPROMVersion: Minor:0x%X Major:0x%x",usEEPROMVersion&0xFF, ((usEEPROMVersion>>8)&0xFF));
+	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, LED_DUMP_INFO, DBG_LVL_ALL,
+		"usEEPROMVersion: Minor:0x%X Major:0x%x",
+		usEEPROMVersion&0xFF, ((usEEPROMVersion>>8)&0xFF));
 
 
-	if(((usEEPROMVersion>>8)&0xFF) < EEPROM_MAP5_MAJORVERSION)
-	{
-		BeceemNVMRead(Adapter,(PUINT)&usHwParamData,EEPROM_HW_PARAM_POINTER_ADDRESS,2);
+	if (((usEEPROMVersion>>8)&0xFF) < EEPROM_MAP5_MAJORVERSION) {
+		BeceemNVMRead(Adapter, (PUINT)&usHwParamData,
+			EEPROM_HW_PARAM_POINTER_ADDRESS, 2);
 		usHwParamData = ntohs(usHwParamData);
 		dwReadValue   = usHwParamData;
-	}
-	else
-	{
-		//
-		// Validate Compatibility section and then read HW param if compatibility section is valid.
-		//
+	} else {
+		/*
+		 * Validate Compatibility section and then read HW param
+		 * if compatibility section is valid.
+		 */
 		Status = ValidateDSDParamsChecksum(Adapter,
-			                   DSD_START_OFFSET,
-			                   COMPATIBILITY_SECTION_LENGTH_MAP5);
+				DSD_START_OFFSET,
+				COMPATIBILITY_SECTION_LENGTH_MAP5);
 
-		if(Status != STATUS_SUCCESS)
-		{
+		if (Status != STATUS_SUCCESS)
 			return Status;
-		}
-		BeceemNVMRead(Adapter,(PUINT)&dwReadValue,EEPROM_HW_PARAM_POINTER_ADDRRES_MAP5,4);
+
+		BeceemNVMRead(Adapter, (PUINT)&dwReadValue,
+			EEPROM_HW_PARAM_POINTER_ADDRRES_MAP5, 4);
 		dwReadValue = ntohl(dwReadValue);
 	}
 
 
-	BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, LED_DUMP_INFO, DBG_LVL_ALL,"LED Thread: Start address of HW_PARAM structure = 0x%lx",dwReadValue);
+	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, LED_DUMP_INFO, DBG_LVL_ALL,
+		"LED Thread: Start address of HW_PARAM structure = 0x%lx",
+		dwReadValue);
 
-	//
-	// Validate if the address read out is within the DSD.
-	// Adapter->uiNVMDSDSize gives whole DSD size inclusive of Autoinit.
-	// lower limit should be above DSD_START_OFFSET and
-	// upper limit should be below (Adapter->uiNVMDSDSize-DSD_START_OFFSET)
-	//
-	if(dwReadValue < DSD_START_OFFSET ||
-	   dwReadValue > (Adapter->uiNVMDSDSize-DSD_START_OFFSET))
-	{
+	/*
+	 * Validate if the address read out is within the DSD.
+	 * Adapter->uiNVMDSDSize gives whole DSD size inclusive of Autoinit.
+	 * lower limit should be above DSD_START_OFFSET and
+	 * upper limit should be below (Adapter->uiNVMDSDSize-DSD_START_OFFSET)
+	 */
+	if (dwReadValue < DSD_START_OFFSET ||
+			dwReadValue > (Adapter->uiNVMDSDSize-DSD_START_OFFSET))
 		return STATUS_IMAGE_CHECKSUM_MISMATCH;
-	}
 
 	Status = ValidateHWParmStructure(Adapter, dwReadValue);
-	if(Status){
+	if (Status)
 		return Status;
-	}
 
 	/*
-	  Add DSD_START_OFFSET to the offset read from the EEPROM.
-	  This will give the actual start HW Parameters start address.
-	  To read GPIO section, add GPIO offset further.
-	*/
-
-	dwReadValue += DSD_START_OFFSET; // = start address of hw param section.
-	dwReadValue += GPIO_SECTION_START_OFFSET; // = GPIO start offset within HW Param section.
-
-	/* Read the GPIO values for 32 GPIOs from EEPROM and map the function
- 	 * number to GPIO pin number to GPIO_Array
- 	 */
-	BeceemNVMRead(Adapter, (UINT *)ucGPIOInfo,dwReadValue,32);
-	for(ucIndex = 0; ucIndex < 32; ucIndex++)
-	 {
-
-		 switch(ucGPIOInfo[ucIndex])
-			{
-				case RED_LED:
-				{
-				 	GPIO_Array[RED_LED] = ucIndex;
-				 	Adapter->gpioBitMap |= (1<<ucIndex);
-					break;
-				}
-				case BLUE_LED:
-				{
-					GPIO_Array[BLUE_LED] = ucIndex;
-					Adapter->gpioBitMap |= (1<<ucIndex);
-					break;
-				}
-				case YELLOW_LED:
-				{
-					 GPIO_Array[YELLOW_LED] = ucIndex;
-					 Adapter->gpioBitMap |= (1<<ucIndex);
-					 break;
-				}
-				case GREEN_LED:
-				{
-					GPIO_Array[GREEN_LED] = ucIndex;
-				 	Adapter->gpioBitMap |= (1<<ucIndex);
-					break;
-				}
-				default:
-					break;
-			}
+	 * Add DSD_START_OFFSET to the offset read from the EEPROM.
+	 * This will give the actual start HW Parameters start address.
+	 * To read GPIO section, add GPIO offset further.
+	 */
+
+	dwReadValue +=
+		DSD_START_OFFSET; /* = start address of hw param section. */
+	dwReadValue += GPIO_SECTION_START_OFFSET;
+			/* = GPIO start offset within HW Param section. */
 
+	/*
+	 * Read the GPIO values for 32 GPIOs from EEPROM and map the function
+	 * number to GPIO pin number to GPIO_Array
+	 */
+	BeceemNVMRead(Adapter, (UINT *)ucGPIOInfo, dwReadValue, 32);
+	for (ucIndex = 0; ucIndex < 32; ucIndex++) {
+
+		switch (ucGPIOInfo[ucIndex]) {
+		case RED_LED:
+			GPIO_Array[RED_LED] = ucIndex;
+			Adapter->gpioBitMap |= (1 << ucIndex);
+			break;
+		case BLUE_LED:
+			GPIO_Array[BLUE_LED] = ucIndex;
+			Adapter->gpioBitMap |= (1 << ucIndex);
+			break;
+		case YELLOW_LED:
+			GPIO_Array[YELLOW_LED] = ucIndex;
+			Adapter->gpioBitMap |= (1 << ucIndex);
+			break;
+		case GREEN_LED:
+			GPIO_Array[GREEN_LED] = ucIndex;
+			Adapter->gpioBitMap |= (1 << ucIndex);
+			break;
+		default:
+			break;
 		}
-		BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, LED_DUMP_INFO, DBG_LVL_ALL,"GPIO's bit map correspond to LED :0x%X",Adapter->gpioBitMap);
-	 return Status;
+
+	}
+	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, LED_DUMP_INFO, DBG_LVL_ALL,
+		"GPIO's bit map correspond to LED :0x%X", Adapter->gpioBitMap);
+	return Status;
 }
 
 
-static int ReadConfigFileStructure(PMINI_ADAPTER Adapter, BOOLEAN *bEnableThread)
+static int ReadConfigFileStructure(PMINI_ADAPTER Adapter,
+					BOOLEAN *bEnableThread)
 {
 	int Status = STATUS_SUCCESS;
-	UCHAR GPIO_Array[NUM_OF_LEDS+1]; /*Array to store GPIO numbers from EEPROM*/
+	/* Array to store GPIO numbers from EEPROM */
+	UCHAR GPIO_Array[NUM_OF_LEDS+1];
 	UINT uiIndex = 0;
 	UINT uiNum_of_LED_Type = 0;
 	PUCHAR puCFGData	= NULL;
 	UCHAR bData = 0;
 	memset(GPIO_Array, DISABLE_GPIO_NUM, NUM_OF_LEDS+1);
 
-	if(!Adapter->pstargetparams || IS_ERR(Adapter->pstargetparams))
-	{
-		BCM_DEBUG_PRINT (Adapter,DBG_TYPE_OTHERS, LED_DUMP_INFO, DBG_LVL_ALL, "Target Params not Avail.\n");
+	if (!Adapter->pstargetparams || IS_ERR(Adapter->pstargetparams)) {
+		BCM_DEBUG_PRINT (Adapter, DBG_TYPE_OTHERS, LED_DUMP_INFO,
+			DBG_LVL_ALL, "Target Params not Avail.\n");
 		return -ENOENT;
 	}
 
-	/*Populate GPIO_Array with GPIO numbers for LED functions*/
-	/*Read the GPIO numbers from EEPROM*/
+	/* Populate GPIO_Array with GPIO numbers for LED functions */
+	/* Read the GPIO numbers from EEPROM */
 	Status = ReadLEDInformationFromEEPROM(Adapter, GPIO_Array);
-	if(Status == STATUS_IMAGE_CHECKSUM_MISMATCH)
-	{
+	if (Status == STATUS_IMAGE_CHECKSUM_MISMATCH) {
 		*bEnableThread = FALSE;
 		return STATUS_SUCCESS;
-	}
-	else if(Status)
-	{
+	} else if (Status) {
 		*bEnableThread = FALSE;
 		return Status;
 	}
-  /*
-     * CONFIG file read successfully. Deallocate the memory of
-     * uiFileNameBufferSize
-     */
-	BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, LED_DUMP_INFO, DBG_LVL_ALL,"LED Thread: Config file read successfully\n");
+
+	/*
+	 * CONFIG file read successfully. Deallocate the memory of
+	 * uiFileNameBufferSize
+	 */
+	BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, LED_DUMP_INFO, DBG_LVL_ALL,
+		"LED Thread: Config file read successfully\n");
 	puCFGData = (PUCHAR) &Adapter->pstargetparams->HostDrvrConfig1;
 
 	/*
- 	 * Offset for HostDrvConfig1, HostDrvConfig2, HostDrvConfig3 which
- 	 * will have the information of LED type, LED on state for different
- 	 * driver state and LED blink state.
- 	 */
+	 * Offset for HostDrvConfig1, HostDrvConfig2, HostDrvConfig3 which
+	 * will have the information of LED type, LED on state for different
+	 * driver state and LED blink state.
+	 */
 
-	for(uiIndex = 0; uiIndex < NUM_OF_LEDS; uiIndex++)
-	{
+	for (uiIndex = 0; uiIndex < NUM_OF_LEDS; uiIndex++) {
 		bData = *puCFGData;
 
-		/*Check Bit 8 for polarity. If it is set, polarity is reverse polarity*/
-		if(bData & 0x80)
-		{
+		/*
+		 * Check Bit 8 for polarity. If it is set,
+		 * polarity is reverse polarity
+		 */
+		if (bData & 0x80) {
 			Adapter->LEDInfo.LEDState[uiIndex].BitPolarity = 0;
-			/*unset the bit 8*/
+			/* unset the bit 8 */
 			bData = bData & 0x7f;
 		}
 
 		Adapter->LEDInfo.LEDState[uiIndex].LED_Type = bData;
-		if(bData <= NUM_OF_LEDS)
-			Adapter->LEDInfo.LEDState[uiIndex].GPIO_Num = GPIO_Array[bData];
+		if (bData <= NUM_OF_LEDS)
+			Adapter->LEDInfo.LEDState[uiIndex].GPIO_Num =
+							GPIO_Array[bData];
 		else
-			Adapter->LEDInfo.LEDState[uiIndex].GPIO_Num = DISABLE_GPIO_NUM;
+			Adapter->LEDInfo.LEDState[uiIndex].GPIO_Num =
+							DISABLE_GPIO_NUM;
 
 		puCFGData++;
 		bData = *puCFGData;
 		Adapter->LEDInfo.LEDState[uiIndex].LED_On_State = bData;
 		puCFGData++;
 		bData = *puCFGData;
-		Adapter->LEDInfo.LEDState[uiIndex].LED_Blink_State= bData;
+		Adapter->LEDInfo.LEDState[uiIndex].LED_Blink_State = bData;
 		puCFGData++;
 	}
 
-	/*Check if all the LED settings are disabled. If it is disabled, dont launch the LED control thread.*/
-	for(uiIndex = 0; uiIndex<NUM_OF_LEDS; uiIndex++)
-	{
-		if((Adapter->LEDInfo.LEDState[uiIndex].LED_Type == DISABLE_GPIO_NUM) ||
-	 		(Adapter->LEDInfo.LEDState[uiIndex].LED_Type == 0x7f) ||
+	/*
+	 * Check if all the LED settings are disabled. If it is disabled,
+	 * dont launch the LED control thread.
+	 */
+	for (uiIndex = 0; uiIndex < NUM_OF_LEDS; uiIndex++) {
+		if ((Adapter->LEDInfo.LEDState[uiIndex].LED_Type == DISABLE_GPIO_NUM) ||
+			(Adapter->LEDInfo.LEDState[uiIndex].LED_Type == 0x7f) ||
 			(Adapter->LEDInfo.LEDState[uiIndex].LED_Type == 0))
 			uiNum_of_LED_Type++;
 	}
-	if(uiNum_of_LED_Type >= NUM_OF_LEDS)
+	if (uiNum_of_LED_Type >= NUM_OF_LEDS)
 		*bEnableThread = FALSE;
 
 	return Status;
 }
-//--------------------------------------------------------------------------
-// Procedure:   LedGpioInit
-//
-// Description: Initializes LED GPIOs. Makes the LED GPIOs to OUTPUT mode and make the
-//			  initial state to be OFF.
-//
-// Arguments:
-//      Adapter - Pointer to MINI_ADAPTER structure.
-//
-// Returns: VOID
-//
-//-----------------------------------------------------------------------------
 
+/*
+ * -----------------------------------------------------------------------------
+ * Procedure:   LedGpioInit
+ *
+ * Description: Initializes LED GPIOs. Makes the LED GPIOs to OUTPUT mode
+ *			  and make the initial state to be OFF.
+ *
+ * Arguments:
+ *      Adapter - Pointer to MINI_ADAPTER structure.
+ *
+ * Returns: VOID
+ *
+ * -----------------------------------------------------------------------------
+ */
 static VOID LedGpioInit(PMINI_ADAPTER Adapter)
 {
 	UINT uiResetValue = 0;
 	UINT uiIndex      = 0;
 
 	/* Set all LED GPIO Mode to output mode */
-	if(rdmalt(Adapter, GPIO_MODE_REGISTER, &uiResetValue, sizeof(uiResetValue)) <0)
-		BCM_DEBUG_PRINT (Adapter,DBG_TYPE_OTHERS, LED_DUMP_INFO, DBG_LVL_ALL,"LED Thread: RDM Failed\n");
-	for(uiIndex = 0; uiIndex < NUM_OF_LEDS; uiIndex++)
-	{
-		if(Adapter->LEDInfo.LEDState[uiIndex].GPIO_Num != DISABLE_GPIO_NUM)
+	if (rdmalt(Adapter, GPIO_MODE_REGISTER, &uiResetValue,
+			sizeof(uiResetValue)) < 0)
+		BCM_DEBUG_PRINT (Adapter, DBG_TYPE_OTHERS, LED_DUMP_INFO,
+			DBG_LVL_ALL, "LED Thread: RDM Failed\n");
+	for (uiIndex = 0; uiIndex < NUM_OF_LEDS; uiIndex++) {
+		if (Adapter->LEDInfo.LEDState[uiIndex].GPIO_Num !=
+				DISABLE_GPIO_NUM)
 			uiResetValue |= (1 << Adapter->LEDInfo.LEDState[uiIndex].GPIO_Num);
-		TURN_OFF_LED(1<<Adapter->LEDInfo.LEDState[uiIndex].GPIO_Num,uiIndex);
+		TURN_OFF_LED(1 << Adapter->LEDInfo.LEDState[uiIndex].GPIO_Num,
+				uiIndex);
 	}
-	if(wrmalt(Adapter, GPIO_MODE_REGISTER, &uiResetValue, sizeof(uiResetValue)) < 0)
-		BCM_DEBUG_PRINT (Adapter,DBG_TYPE_OTHERS, LED_DUMP_INFO, DBG_LVL_ALL,"LED Thread: WRM Failed\n");
+	if (wrmalt(Adapter, GPIO_MODE_REGISTER, &uiResetValue,
+			sizeof(uiResetValue)) < 0)
+		BCM_DEBUG_PRINT (Adapter, DBG_TYPE_OTHERS, LED_DUMP_INFO,
+			DBG_LVL_ALL, "LED Thread: WRM Failed\n");
 
-	Adapter->LEDInfo.bIdle_led_off =  FALSE;
+	Adapter->LEDInfo.bIdle_led_off = FALSE;
 }
-//-----------------------------------------------------------------------------
 
-static INT BcmGetGPIOPinInfo(PMINI_ADAPTER Adapter, UCHAR *GPIO_num_tx, UCHAR *GPIO_num_rx ,UCHAR *uiLedTxIndex, UCHAR *uiLedRxIndex,LedEventInfo_t currdriverstate)
+static INT BcmGetGPIOPinInfo(PMINI_ADAPTER Adapter, UCHAR *GPIO_num_tx,
+		UCHAR *GPIO_num_rx, UCHAR *uiLedTxIndex, UCHAR *uiLedRxIndex,
+		LedEventInfo_t currdriverstate)
 {
 	UINT uiIndex = 0;
 
 	*GPIO_num_tx = DISABLE_GPIO_NUM;
 	*GPIO_num_rx = DISABLE_GPIO_NUM;
 
-	for(uiIndex = 0; uiIndex < NUM_OF_LEDS; uiIndex++)
-	{
+	for (uiIndex = 0; uiIndex < NUM_OF_LEDS; uiIndex++) {
 
-		if((currdriverstate == NORMAL_OPERATION)||
-			(currdriverstate == IDLEMODE_EXIT)||
-			(currdriverstate == FW_DOWNLOAD))
-		{
-			if(Adapter->LEDInfo.LEDState[uiIndex].LED_Blink_State & currdriverstate)
-			{
-				if(Adapter->LEDInfo.LEDState[uiIndex].GPIO_Num != DISABLE_GPIO_NUM)
-				{
-					if(*GPIO_num_tx == DISABLE_GPIO_NUM)
-					{
+		if ((currdriverstate == NORMAL_OPERATION) ||
+				(currdriverstate == IDLEMODE_EXIT) ||
+				(currdriverstate == FW_DOWNLOAD)) {
+			if (Adapter->LEDInfo.LEDState[uiIndex].LED_Blink_State &
+					currdriverstate) {
+				if (Adapter->LEDInfo.LEDState[uiIndex].GPIO_Num
+						!= DISABLE_GPIO_NUM) {
+					if (*GPIO_num_tx == DISABLE_GPIO_NUM) {
 						*GPIO_num_tx = Adapter->LEDInfo.LEDState[uiIndex].GPIO_Num;
 						*uiLedTxIndex = uiIndex;
-					}
-					else
-					{
+					} else {
 						*GPIO_num_rx = Adapter->LEDInfo.LEDState[uiIndex].GPIO_Num;
 						*uiLedRxIndex = uiIndex;
 					}
 				}
 			}
-		}
-		else
-		{
-			if(Adapter->LEDInfo.LEDState[uiIndex].LED_On_State & currdriverstate)
-			{
-				if(Adapter->LEDInfo.LEDState[uiIndex].GPIO_Num != DISABLE_GPIO_NUM)
-				{
+		} else {
+			if (Adapter->LEDInfo.LEDState[uiIndex].LED_On_State
+					& currdriverstate) {
+				if (Adapter->LEDInfo.LEDState[uiIndex].GPIO_Num
+						!= DISABLE_GPIO_NUM) {
 					*GPIO_num_tx = Adapter->LEDInfo.LEDState[uiIndex].GPIO_Num;
 					*uiLedTxIndex = uiIndex;
 				}
 			}
 		}
 	}
-	return STATUS_SUCCESS ;
+	return STATUS_SUCCESS;
 }
 static VOID LEDControlThread(PMINI_ADAPTER Adapter)
 {
 	UINT uiIndex = 0;
 	UCHAR GPIO_num = 0;
-	UCHAR uiLedIndex = 0 ;
+	UCHAR uiLedIndex = 0;
 	UINT uiResetValue = 0;
 	LedEventInfo_t currdriverstate = 0;
 	ulong timeout = 0;
 
 	INT Status = 0;
 
-	UCHAR  dummyGPIONum = 0;
-	UCHAR  dummyIndex = 0;
+	UCHAR dummyGPIONum = 0;
+	UCHAR dummyIndex = 0;
 
-	//currdriverstate = Adapter->DriverState;
+	/* currdriverstate = Adapter->DriverState; */
 	Adapter->LEDInfo.bIdleMode_tx_from_host = FALSE;
 
-	/*Wait till event is triggered*/
-	//wait_event(Adapter->LEDInfo.notify_led_event,
-			//	currdriverstate!= Adapter->DriverState);
+	/*
+	 * Wait till event is triggered
+	 *
+	 * wait_event(Adapter->LEDInfo.notify_led_event,
+	 *	currdriverstate!= Adapter->DriverState);
+	 */
 
-	GPIO_num = DISABLE_GPIO_NUM ;
+	GPIO_num = DISABLE_GPIO_NUM;
 
-	while(TRUE)
-	{
-		/*Wait till event is triggered*/
-		if( (GPIO_num == DISABLE_GPIO_NUM)
+	while (TRUE) {
+		/* Wait till event is triggered */
+		if ((GPIO_num == DISABLE_GPIO_NUM)
 						||
-			((currdriverstate != FW_DOWNLOAD) &&
-			 (currdriverstate != NORMAL_OPERATION) &&
-			 (currdriverstate != LOWPOWER_MODE_ENTER))
-			 			||
-			 (currdriverstate == LED_THREAD_INACTIVE)	)
-		{
-			Status = wait_event_interruptible(Adapter->LEDInfo.notify_led_event,
-				currdriverstate != Adapter->DriverState || kthread_should_stop());
-		}
-
-		if(kthread_should_stop() || Adapter->device_removed )
-		{
-			BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, LED_DUMP_INFO, DBG_LVL_ALL, "Led thread got signal to exit..hence exiting");
-			Adapter->LEDInfo.led_thread_running = BCM_LED_THREAD_DISABLED;
-			TURN_OFF_LED(1<<GPIO_num, uiLedIndex);
-			return ;//STATUS_FAILURE;
+				((currdriverstate != FW_DOWNLOAD) &&
+				 (currdriverstate != NORMAL_OPERATION) &&
+				 (currdriverstate != LOWPOWER_MODE_ENTER))
+						||
+				(currdriverstate == LED_THREAD_INACTIVE))
+			Status = wait_event_interruptible(
+					Adapter->LEDInfo.notify_led_event,
+					currdriverstate != Adapter->DriverState
+						|| kthread_should_stop());
+
+		if (kthread_should_stop() || Adapter->device_removed) {
+			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, LED_DUMP_INFO,
+				DBG_LVL_ALL,
+				"Led thread got signal to exit..hence exiting");
+			Adapter->LEDInfo.led_thread_running =
+						BCM_LED_THREAD_DISABLED;
+			TURN_OFF_LED(1 << GPIO_num, uiLedIndex);
+			return; /* STATUS_FAILURE; */
 		}
 
-		if(GPIO_num != DISABLE_GPIO_NUM)
-		{
-			TURN_OFF_LED(1<<GPIO_num, uiLedIndex);
-		}
+		if (GPIO_num != DISABLE_GPIO_NUM)
+			TURN_OFF_LED(1 << GPIO_num, uiLedIndex);
 
-		if(Adapter->LEDInfo.bLedInitDone == FALSE)
-		{
+		if (Adapter->LEDInfo.bLedInitDone == FALSE) {
 			LedGpioInit(Adapter);
 			Adapter->LEDInfo.bLedInitDone = TRUE;
 		}
 
-		switch(Adapter->DriverState)
-		{
-			case DRIVER_INIT:
-			{
-				currdriverstate = DRIVER_INIT;//Adapter->DriverState;
-				BcmGetGPIOPinInfo(Adapter, &GPIO_num, &dummyGPIONum, &uiLedIndex, &dummyIndex, currdriverstate);
+		switch (Adapter->DriverState) {
+		case DRIVER_INIT:
+			currdriverstate = DRIVER_INIT;
+					/* Adapter->DriverState; */
+			BcmGetGPIOPinInfo(Adapter, &GPIO_num, &dummyGPIONum,
+				&uiLedIndex, &dummyIndex, currdriverstate);
+
+			if (GPIO_num != DISABLE_GPIO_NUM)
+				TURN_ON_LED(1 << GPIO_num, uiLedIndex);
 
-				if(GPIO_num  != DISABLE_GPIO_NUM)
-				{
-					TURN_ON_LED(1<<GPIO_num, uiLedIndex);
-				}
-			}
 			break;
-			case FW_DOWNLOAD:
-			{
-				//BCM_DEBUG_PRINT (Adapter,DBG_TYPE_OTHERS, LED_DUMP_INFO, DBG_LVL_ALL,"LED Thread: FW_DN_DONE called\n");
-				currdriverstate = FW_DOWNLOAD;
-				BcmGetGPIOPinInfo(Adapter, &GPIO_num, &dummyGPIONum,  &uiLedIndex, &dummyIndex, currdriverstate);
-
-				if(GPIO_num != DISABLE_GPIO_NUM)
-				{
-					timeout = 50;
-					LED_Blink(Adapter, 1<<GPIO_num, uiLedIndex, timeout, -1,currdriverstate);
-				}
+		case FW_DOWNLOAD:
+			/*
+			 * BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS,
+			 *	LED_DUMP_INFO, DBG_LVL_ALL,
+			 *	"LED Thread: FW_DN_DONE called\n");
+			 */
+			currdriverstate = FW_DOWNLOAD;
+			BcmGetGPIOPinInfo(Adapter, &GPIO_num, &dummyGPIONum,
+				&uiLedIndex, &dummyIndex, currdriverstate);
+
+			if (GPIO_num != DISABLE_GPIO_NUM) {
+				timeout = 50;
+				LED_Blink(Adapter, 1 << GPIO_num, uiLedIndex,
+					timeout, -1, currdriverstate);
 			}
 			break;
-			case FW_DOWNLOAD_DONE:
-			{
-				currdriverstate = FW_DOWNLOAD_DONE;
-				BcmGetGPIOPinInfo(Adapter, &GPIO_num, &dummyGPIONum, &uiLedIndex, &dummyIndex,currdriverstate);
-				if(GPIO_num != DISABLE_GPIO_NUM)
-				{
-					TURN_ON_LED(1<<GPIO_num, uiLedIndex);
-				}
-			}
+		case FW_DOWNLOAD_DONE:
+			currdriverstate = FW_DOWNLOAD_DONE;
+			BcmGetGPIOPinInfo(Adapter, &GPIO_num, &dummyGPIONum,
+				&uiLedIndex, &dummyIndex, currdriverstate);
+			if (GPIO_num != DISABLE_GPIO_NUM)
+				TURN_ON_LED(1 << GPIO_num, uiLedIndex);
 			break;
 
-			case SHUTDOWN_EXIT:
-			//no break, continue to NO_NETWORK_ENTRY state as well.
-
-			case NO_NETWORK_ENTRY:
-			{
-				currdriverstate = NO_NETWORK_ENTRY;
-				BcmGetGPIOPinInfo(Adapter, &GPIO_num, &dummyGPIONum, &uiLedIndex,&dummyGPIONum,currdriverstate);
-				if(GPIO_num != DISABLE_GPIO_NUM)
-				{
-					TURN_ON_LED(1<<GPIO_num, uiLedIndex);
-				}
-			}
+		case SHUTDOWN_EXIT:
+			/*
+			 * no break, continue to NO_NETWORK_ENTRY
+			 * state as well.
+			 */
+		case NO_NETWORK_ENTRY:
+			currdriverstate = NO_NETWORK_ENTRY;
+			BcmGetGPIOPinInfo(Adapter, &GPIO_num, &dummyGPIONum,
+				&uiLedIndex, &dummyGPIONum, currdriverstate);
+			if (GPIO_num != DISABLE_GPIO_NUM)
+				TURN_ON_LED(1 << GPIO_num, uiLedIndex);
 			break;
-			case NORMAL_OPERATION:
+		case NORMAL_OPERATION:
 			{
 				UCHAR GPIO_num_tx = DISABLE_GPIO_NUM;
 				UCHAR GPIO_num_rx = DISABLE_GPIO_NUM;
 				UCHAR uiLEDTx = 0;
 				UCHAR uiLEDRx = 0;
 				currdriverstate = NORMAL_OPERATION;
-				Adapter->LEDInfo.bIdle_led_off =  FALSE;
-
-				BcmGetGPIOPinInfo(Adapter, &GPIO_num_tx, &GPIO_num_rx, &uiLEDTx,&uiLEDRx,currdriverstate);
-				if((GPIO_num_tx == DISABLE_GPIO_NUM) && (GPIO_num_rx == DISABLE_GPIO_NUM))
-				{
-					GPIO_num = DISABLE_GPIO_NUM ;
-				}
-				else
-				{
-					/*If single LED is selected, use same for both Tx and Rx*/
-					if(GPIO_num_tx == DISABLE_GPIO_NUM)
-					{
+				Adapter->LEDInfo.bIdle_led_off = FALSE;
+
+				BcmGetGPIOPinInfo(Adapter, &GPIO_num_tx,
+					&GPIO_num_rx, &uiLEDTx, &uiLEDRx,
+					currdriverstate);
+				if ((GPIO_num_tx == DISABLE_GPIO_NUM) &&
+						(GPIO_num_rx ==
+						 DISABLE_GPIO_NUM)) {
+					GPIO_num = DISABLE_GPIO_NUM;
+				} else {
+					/*
+					 * If single LED is selected, use same
+					 * for both Tx and Rx
+					 */
+					if (GPIO_num_tx == DISABLE_GPIO_NUM) {
 						GPIO_num_tx = GPIO_num_rx;
 						uiLEDTx = uiLEDRx;
-					}
-					else if(GPIO_num_rx == DISABLE_GPIO_NUM)
-					{
+					} else if (GPIO_num_rx ==
+							DISABLE_GPIO_NUM) {
 						GPIO_num_rx = GPIO_num_tx;
 						uiLEDRx = uiLEDTx;
 					}
-				/*Blink the LED in proportionate to Tx and Rx transmissions.*/
-					LED_Proportional_Blink(Adapter, GPIO_num_tx, uiLEDTx, GPIO_num_rx, uiLEDRx,currdriverstate);
+					/*
+					 * Blink the LED in proportionate
+					 * to Tx and Rx transmissions.
+					 */
+					LED_Proportional_Blink(Adapter,
+						GPIO_num_tx, uiLEDTx,
+						GPIO_num_rx, uiLEDRx,
+						currdriverstate);
 				}
 			}
 			break;
-			case LOWPOWER_MODE_ENTER:
-			{
-				currdriverstate  = LOWPOWER_MODE_ENTER;
-				if( DEVICE_POWERSAVE_MODE_AS_MANUAL_CLOCK_GATING == Adapter->ulPowerSaveMode)
-				{
-					/* Turn OFF all the LED */
-					uiResetValue = 0;
-					for(uiIndex =0; uiIndex < NUM_OF_LEDS; uiIndex++)
-					{
-						if(Adapter->LEDInfo.LEDState[uiIndex].GPIO_Num != DISABLE_GPIO_NUM)
-						TURN_OFF_LED((1<<Adapter->LEDInfo.LEDState[uiIndex].GPIO_Num),uiIndex);
-					}
-
+		case LOWPOWER_MODE_ENTER:
+			currdriverstate = LOWPOWER_MODE_ENTER;
+			if (DEVICE_POWERSAVE_MODE_AS_MANUAL_CLOCK_GATING ==
+					Adapter->ulPowerSaveMode) {
+				/* Turn OFF all the LED */
+				uiResetValue = 0;
+				for (uiIndex = 0; uiIndex < NUM_OF_LEDS; uiIndex++) {
+					if (Adapter->LEDInfo.LEDState[uiIndex].GPIO_Num != DISABLE_GPIO_NUM)
+						TURN_OFF_LED((1 << Adapter->LEDInfo.LEDState[uiIndex].GPIO_Num), uiIndex);
 				}
-				/* Turn off LED And WAKE-UP for Sendinf IDLE mode ACK */
-				Adapter->LEDInfo.bLedInitDone = FALSE;
-				Adapter->LEDInfo.bIdle_led_off =  TRUE;
-				wake_up(&Adapter->LEDInfo.idleModeSyncEvent);
-				GPIO_num = DISABLE_GPIO_NUM;
-				break;
-			}
-			case IDLEMODE_CONTINUE:
-			{
-				currdriverstate = IDLEMODE_CONTINUE;
-				GPIO_num = DISABLE_GPIO_NUM;
+
 			}
+			/* Turn off LED And WAKE-UP for Sendinf IDLE mode ACK */
+			Adapter->LEDInfo.bLedInitDone = FALSE;
+			Adapter->LEDInfo.bIdle_led_off = TRUE;
+			wake_up(&Adapter->LEDInfo.idleModeSyncEvent);
+			GPIO_num = DISABLE_GPIO_NUM;
 			break;
-			case IDLEMODE_EXIT:
-			{
-			}
+		case IDLEMODE_CONTINUE:
+			currdriverstate = IDLEMODE_CONTINUE;
+			GPIO_num = DISABLE_GPIO_NUM;
 			break;
-			case DRIVER_HALT:
-			{
-				currdriverstate = DRIVER_HALT;
-				GPIO_num = DISABLE_GPIO_NUM;
-				for(uiIndex = 0; uiIndex < NUM_OF_LEDS; uiIndex++)
-				{
-					if(Adapter->LEDInfo.LEDState[uiIndex].GPIO_Num !=
-						DISABLE_GPIO_NUM)
-						TURN_OFF_LED((1<<Adapter->LEDInfo.LEDState[uiIndex].GPIO_Num),uiIndex);
-				}
-				//Adapter->DriverState = DRIVER_INIT;
+		case IDLEMODE_EXIT:
+			break;
+		case DRIVER_HALT:
+			currdriverstate = DRIVER_HALT;
+			GPIO_num = DISABLE_GPIO_NUM;
+			for (uiIndex = 0; uiIndex < NUM_OF_LEDS; uiIndex++) {
+				if (Adapter->LEDInfo.LEDState[uiIndex].GPIO_Num
+						!= DISABLE_GPIO_NUM)
+					TURN_OFF_LED((1 << Adapter->LEDInfo.LEDState[uiIndex].GPIO_Num), uiIndex);
 			}
+			/* Adapter->DriverState = DRIVER_INIT; */
 			break;
-			case LED_THREAD_INACTIVE :
-			{
-				BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, LED_DUMP_INFO, DBG_LVL_ALL,"InActivating LED thread...");
-				currdriverstate = LED_THREAD_INACTIVE;
-				Adapter->LEDInfo.led_thread_running = BCM_LED_THREAD_RUNNING_INACTIVELY ;
-				Adapter->LEDInfo.bLedInitDone = FALSE ;
-				//disable ALL LED
-				for(uiIndex = 0; uiIndex < NUM_OF_LEDS; uiIndex++)
-				{
-					if(Adapter->LEDInfo.LEDState[uiIndex].GPIO_Num !=
-						DISABLE_GPIO_NUM)
-						TURN_OFF_LED((1<<Adapter->LEDInfo.LEDState[uiIndex].GPIO_Num),uiIndex);
-				}
+		case LED_THREAD_INACTIVE:
+			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, LED_DUMP_INFO,
+				DBG_LVL_ALL, "InActivating LED thread...");
+			currdriverstate = LED_THREAD_INACTIVE;
+			Adapter->LEDInfo.led_thread_running =
+					BCM_LED_THREAD_RUNNING_INACTIVELY;
+			Adapter->LEDInfo.bLedInitDone = FALSE;
+			/* disable ALL LED */
+			for (uiIndex = 0; uiIndex < NUM_OF_LEDS; uiIndex++) {
+				if (Adapter->LEDInfo.LEDState[uiIndex].GPIO_Num
+						!= DISABLE_GPIO_NUM)
+					TURN_OFF_LED((1 << Adapter->LEDInfo.LEDState[uiIndex].GPIO_Num), uiIndex);
 			}
 			break;
-			case LED_THREAD_ACTIVE :
-			{
-				BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, LED_DUMP_INFO, DBG_LVL_ALL,"Activating LED thread again...");
-				if(Adapter->LinkUpStatus == FALSE)
-					Adapter->DriverState = NO_NETWORK_ENTRY;
-				else
-					Adapter->DriverState = NORMAL_OPERATION;
+		case LED_THREAD_ACTIVE:
+			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, LED_DUMP_INFO,
+				DBG_LVL_ALL, "Activating LED thread again...");
+			if (Adapter->LinkUpStatus == FALSE)
+				Adapter->DriverState = NO_NETWORK_ENTRY;
+			else
+				Adapter->DriverState = NORMAL_OPERATION;
 
-				Adapter->LEDInfo.led_thread_running = BCM_LED_THREAD_RUNNING_ACTIVELY ;
-			}
+			Adapter->LEDInfo.led_thread_running =
+					BCM_LED_THREAD_RUNNING_ACTIVELY;
+			break;
+			/* return; */
+		default:
 			break;
-			//return;
-			default:
-				break;
 		}
 	}
 	Adapter->LEDInfo.led_thread_running = BCM_LED_THREAD_DISABLED;
@@ -839,49 +863,54 @@ int InitLedSettings(PMINI_ADAPTER Adapter)
 	BOOLEAN bEnableThread = TRUE;
 	UCHAR uiIndex = 0;
 
-	/*Initially set BitPolarity to normal polarity. The bit 8 of LED type
- * 	  is used to change the polarity of the LED.*/
+	/*
+	 * Initially set BitPolarity to normal polarity. The bit 8 of LED type
+	 * is used to change the polarity of the LED.
+	 */
 
-	for(uiIndex = 0; uiIndex < NUM_OF_LEDS; uiIndex++) {
+	for (uiIndex = 0; uiIndex < NUM_OF_LEDS; uiIndex++)
 		Adapter->LEDInfo.LEDState[uiIndex].BitPolarity = 1;
-	}
 
-	/*Read the LED settings of CONFIG file and map it to GPIO numbers in EEPROM*/
+	/*
+	 * Read the LED settings of CONFIG file and map it
+	 * to GPIO numbers in EEPROM
+	 */
 	Status = ReadConfigFileStructure(Adapter, &bEnableThread);
-	if(STATUS_SUCCESS != Status)
-	{
-		BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, LED_DUMP_INFO, DBG_LVL_ALL,"LED Thread: FAILED in ReadConfigFileStructure\n");
+	if (STATUS_SUCCESS != Status) {
+		BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, LED_DUMP_INFO,
+			DBG_LVL_ALL,
+			"LED Thread: FAILED in ReadConfigFileStructure\n");
 		return Status;
 	}
 
-	if(Adapter->LEDInfo.led_thread_running)
-	{
-		if(bEnableThread)
+	if (Adapter->LEDInfo.led_thread_running) {
+		if (bEnableThread) {
 			;
-		else
-		{
+		} else {
 			Adapter->DriverState = DRIVER_HALT;
 			wake_up(&Adapter->LEDInfo.notify_led_event);
-			Adapter->LEDInfo.led_thread_running = BCM_LED_THREAD_DISABLED;
+			Adapter->LEDInfo.led_thread_running =
+						BCM_LED_THREAD_DISABLED;
 		}
 
-	}
-
-	else if(bEnableThread)
-	{
-		/*Create secondary thread to handle the LEDs*/
+	} else if (bEnableThread) {
+		/* Create secondary thread to handle the LEDs */
 		init_waitqueue_head(&Adapter->LEDInfo.notify_led_event);
 		init_waitqueue_head(&Adapter->LEDInfo.idleModeSyncEvent);
-		Adapter->LEDInfo.led_thread_running = BCM_LED_THREAD_RUNNING_ACTIVELY;
-		Adapter->LEDInfo.bIdle_led_off =  FALSE;
-		Adapter->LEDInfo.led_cntrl_threadid = kthread_run((int (*)(void *))
-            LEDControlThread, Adapter, "led_control_thread");
-		if(IS_ERR(Adapter->LEDInfo.led_cntrl_threadid))
-    	{
-        	BCM_DEBUG_PRINT(Adapter,DBG_TYPE_OTHERS, LED_DUMP_INFO, DBG_LVL_ALL, "Not able to spawn Kernel Thread\n");
-			Adapter->LEDInfo.led_thread_running = BCM_LED_THREAD_DISABLED;
-        	return PTR_ERR(Adapter->LEDInfo.led_cntrl_threadid);
-    	}
+		Adapter->LEDInfo.led_thread_running =
+					BCM_LED_THREAD_RUNNING_ACTIVELY;
+		Adapter->LEDInfo.bIdle_led_off = FALSE;
+		Adapter->LEDInfo.led_cntrl_threadid =
+			kthread_run((int (*)(void *)) LEDControlThread,
+			Adapter, "led_control_thread");
+		if (IS_ERR(Adapter->LEDInfo.led_cntrl_threadid)) {
+			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_OTHERS, LED_DUMP_INFO,
+				DBG_LVL_ALL,
+				"Not able to spawn Kernel Thread\n");
+			Adapter->LEDInfo.led_thread_running =
+				BCM_LED_THREAD_DISABLED;
+			return PTR_ERR(Adapter->LEDInfo.led_cntrl_threadid);
+		}
 	}
 	return Status;
 }
diff --git a/drivers/staging/bcm/nvm.c b/drivers/staging/bcm/nvm.c
index 3de0daf5edb2..7d703cb3c5e0 100644
--- a/drivers/staging/bcm/nvm.c
+++ b/drivers/staging/bcm/nvm.c
@@ -78,7 +78,7 @@ static UCHAR ReadEEPROMStatusRegister( PMINI_ADAPTER Adapter )
 	{
 		value=0;
 		uiStatus = 0 ;
-		rdmalt( Adapter, EEPROM_SPI_Q_STATUS1_REG,&uiStatus, sizeof(uiStatus));
+		rdmalt(Adapter, EEPROM_SPI_Q_STATUS1_REG, &uiStatus, sizeof(uiStatus));
 		if(Adapter->device_removed == TRUE)
 		{
 			BCM_DEBUG_PRINT(Adapter,DBG_TYPE_PRINTK, 0, 0,"Modem has got removed hence exiting....");
@@ -93,7 +93,7 @@ static UCHAR ReadEEPROMStatusRegister( PMINI_ADAPTER Adapter )
 			wrmalt( Adapter, EEPROM_SPI_Q_STATUS1_REG, &value, sizeof(value));
 
 			value =0;
-			rdmalt(Adapter, EEPROM_READ_DATAQ_REG,&value, sizeof(value));
+			rdmalt(Adapter, EEPROM_READ_DATAQ_REG, &value, sizeof(value));
 			uiData = (UCHAR)value;
 
 			break;
@@ -102,8 +102,8 @@ static UCHAR ReadEEPROMStatusRegister( PMINI_ADAPTER Adapter )
 		dwRetries-- ;
 		if ( dwRetries == 0 )
 		{
-			 rdmalt(Adapter, EEPROM_SPI_Q_STATUS1_REG,&value, sizeof(value));
-			 rdmalt(Adapter, EEPROM_SPI_Q_STATUS_REG,&value1, sizeof(value1));
+			 rdmalt(Adapter, EEPROM_SPI_Q_STATUS1_REG, &value, sizeof(value));
+			 rdmalt(Adapter, EEPROM_SPI_Q_STATUS_REG, &value1, sizeof(value1));
 			 BCM_DEBUG_PRINT(Adapter,DBG_TYPE_PRINTK, 0, 0,"0x3004 = %x 0x3008 = %x, retries = %d failed.\n",value,value1,  MAX_EEPROM_RETRIES*RETRIES_PER_DELAY);
 			return uiData;
 		}
@@ -158,7 +158,7 @@ INT ReadBeceemEEPROMBulk( PMINI_ADAPTER Adapter,
 		{
 
 		uiStatus = 0;
-		rdmalt( Adapter, EEPROM_SPI_Q_STATUS1_REG, &uiStatus, sizeof(uiStatus));
+		rdmalt(Adapter, EEPROM_SPI_Q_STATUS1_REG, &uiStatus, sizeof(uiStatus));
 		if(Adapter->device_removed == TRUE)
 		{
 			BCM_DEBUG_PRINT(Adapter,DBG_TYPE_PRINTK, 0, 0,"Modem has got Removed.hence exiting from loop...");
@@ -202,8 +202,8 @@ INT ReadBeceemEEPROMBulk( PMINI_ADAPTER Adapter,
 		{
 			value=0;
 			value1=0;
-			rdmalt(Adapter, EEPROM_SPI_Q_STATUS1_REG,&value, sizeof(value));
-			rdmalt(Adapter, EEPROM_SPI_Q_STATUS_REG,&value1, sizeof(value1));
+			rdmalt(Adapter, EEPROM_SPI_Q_STATUS1_REG, &value, sizeof(value));
+			rdmalt(Adapter, EEPROM_SPI_Q_STATUS_REG, &value1, sizeof(value1));
 			BCM_DEBUG_PRINT(Adapter,DBG_TYPE_PRINTK, 0, 0, "dwNumWords %d 0x3004 = %x 0x3008 = %x  retries = %d failed.\n", dwNumWords, value,  value1,  MAX_EEPROM_RETRIES*RETRIES_PER_DELAY);
 			return STATUS_FAILURE;
 		}
@@ -217,22 +217,22 @@ INT ReadBeceemEEPROMBulk( PMINI_ADAPTER Adapter,
 		pvalue = (PUCHAR)(pdwData + dwIndex);
 
 		value =0;
-		rdmalt(Adapter, EEPROM_READ_DATAQ_REG,&value, sizeof(value));
+		rdmalt(Adapter, EEPROM_READ_DATAQ_REG, &value, sizeof(value));
 
 		pvalue[0] = value;
 
 		value = 0;
-		rdmalt(Adapter, EEPROM_READ_DATAQ_REG,&value, sizeof(value));
+		rdmalt(Adapter, EEPROM_READ_DATAQ_REG, &value, sizeof(value));
 
 		pvalue[1] = value;
 
 		value =0;
-		rdmalt(Adapter, EEPROM_READ_DATAQ_REG,&value, sizeof(value));
+		rdmalt(Adapter, EEPROM_READ_DATAQ_REG, &value, sizeof(value));
 
 		pvalue[2] = value;
 
 		value = 0;
-		rdmalt(Adapter, EEPROM_READ_DATAQ_REG,&value, sizeof(value));
+		rdmalt(Adapter, EEPROM_READ_DATAQ_REG, &value, sizeof(value));
 
 		pvalue[3] = value;
 	}
@@ -445,6 +445,7 @@ static INT BeceemFlashBulkRead(
 	UINT uiBytesToRead = uiNumBytes;
 	INT Status = 0;
 	UINT uiPartOffset = 0;
+	int bytes;
 
 	if(Adapter->device_removed )
 	{
@@ -469,9 +470,9 @@ static INT BeceemFlashBulkRead(
 		uiBytesToRead = MAX_RW_SIZE - (uiOffset%MAX_RW_SIZE);
 		uiBytesToRead = MIN(uiNumBytes,uiBytesToRead);
 
-		if(rdm(Adapter,uiPartOffset, (PCHAR)pBuffer+uiIndex,uiBytesToRead))
-		{
-			Status = -1;
+		bytes = rdm(Adapter, uiPartOffset, (PCHAR)pBuffer+uiIndex, uiBytesToRead);
+		if (bytes < 0) {
+			Status = bytes;
 			Adapter->SelectedChip = RESET_CHIP_SELECT;
 			return Status;
 		}
@@ -488,9 +489,9 @@ static INT BeceemFlashBulkRead(
 
 		uiBytesToRead = MIN(uiNumBytes,MAX_RW_SIZE);
 
-		if(rdm(Adapter,uiPartOffset, (PCHAR)pBuffer+uiIndex,uiBytesToRead))
-		{
-			Status = -1;
+		bytes = rdm(Adapter, uiPartOffset, (PCHAR)pBuffer+uiIndex, uiBytesToRead);
+		if (bytes < 0) {
+			Status = bytes;
 			break;
 		}
 
@@ -613,6 +614,7 @@ static INT FlashSectorErase(PMINI_ADAPTER Adapter,
 	UINT iIndex = 0, iRetries = 0;
 	UINT uiStatus = 0;
 	UINT value;
+	int bytes;
 
 	for(iIndex=0;iIndex<numOfSectors;iIndex++)
 	{
@@ -632,10 +634,11 @@ static INT FlashSectorErase(PMINI_ADAPTER Adapter,
 				return STATUS_FAILURE;
 			}
 
-			if(rdmalt(Adapter, FLASH_SPI_READQ_REG, &uiStatus, sizeof(uiStatus)) < 0 )
-			{
-				BCM_DEBUG_PRINT(Adapter,DBG_TYPE_PRINTK, 0, 0,"Reading status of FLASH_SPI_READQ_REG fails");
-				return STATUS_FAILURE;
+			bytes = rdmalt(Adapter, FLASH_SPI_READQ_REG, &uiStatus, sizeof(uiStatus));
+			if (bytes < 0) {
+				uiStatus = bytes;
+				BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Reading status of FLASH_SPI_READQ_REG fails");
+				return uiStatus;
 			}
 			iRetries++;
 			//After every try lets make the CPU free for 10 ms. generally time taken by the
@@ -679,6 +682,7 @@ static INT flashByteWrite(
 
 	UINT value;
 	ULONG ulData = *(PUCHAR)pData;
+	int bytes;
 
 //
 // need not write 0xFF because write requires an erase and erase will
@@ -720,10 +724,11 @@ static INT flashByteWrite(
 			return STATUS_FAILURE;
 	  	}
 	  	//__udelay(1);
-	  	if(rdmalt(Adapter, FLASH_SPI_READQ_REG, &uiStatus, sizeof(uiStatus)) < 0)
-	  	{
-	  		BCM_DEBUG_PRINT(Adapter,DBG_TYPE_PRINTK, 0, 0,"Reading status of FLASH_SPI_READQ_REG fails");
-			return STATUS_FAILURE;
+		bytes = rdmalt(Adapter, FLASH_SPI_READQ_REG, &uiStatus, sizeof(uiStatus));
+		if (bytes < 0) {
+			uiStatus = bytes;
+			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Reading status of FLASH_SPI_READQ_REG fails");
+			return uiStatus;
 		}
 	  	iRetries--;
 		if( iRetries && ((iRetries % FLASH_PER_RETRIES_DELAY) == 0))
@@ -771,6 +776,7 @@ static INT flashWrite(
 
 	UINT value;
 	UINT uiErasePattern[4] = {0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF};
+	int bytes;
 //
 // need not write 0xFFFFFFFF because write requires an erase and erase will
 // make whole sector 0xFFFFFFFF.
@@ -803,10 +809,11 @@ static INT flashWrite(
 			return STATUS_FAILURE;
 	  	}
 	  	//__udelay(1);
-	  	if(rdmalt(Adapter, FLASH_SPI_READQ_REG, &uiStatus, sizeof(uiStatus)) < 0 )
-	  	{
-	  		BCM_DEBUG_PRINT(Adapter,DBG_TYPE_PRINTK, 0, 0,"Reading status of FLASH_SPI_READQ_REG fails");
-			return STATUS_FAILURE;
+		bytes = rdmalt(Adapter, FLASH_SPI_READQ_REG, &uiStatus, sizeof(uiStatus));
+		if (bytes < 0) {
+			uiStatus = bytes;
+			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Reading status of FLASH_SPI_READQ_REG fails");
+			return uiStatus;
 		}
 
 		iRetries--;
@@ -849,6 +856,7 @@ static INT flashByteWriteStatus(
 	INT  iRetries = MAX_FLASH_RETRIES * FLASH_PER_RETRIES_DELAY; //3
 	ULONG ulData  = *(PUCHAR)pData;
 	UINT value;
+	int bytes;
 
 //
 // need not write 0xFFFFFFFF because write requires an erase and erase will
@@ -891,10 +899,11 @@ static INT flashByteWriteStatus(
 			return STATUS_FAILURE;
 		}
 		//__udelay(1);
-		if(rdmalt(Adapter, FLASH_SPI_READQ_REG, &uiStatus, sizeof(uiStatus)) < 0)
-		{
-			BCM_DEBUG_PRINT(Adapter,DBG_TYPE_PRINTK, 0, 0,"Reading status of FLASH_SPI_READQ_REG fails");
-			return STATUS_FAILURE;
+		bytes = rdmalt(Adapter, FLASH_SPI_READQ_REG, &uiStatus, sizeof(uiStatus));
+		if (bytes < 0) {
+			uiStatus = bytes;
+			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Reading status of FLASH_SPI_READQ_REG fails");
+			return uiStatus;
 		}
 
 		iRetries--;
@@ -935,6 +944,7 @@ static INT flashWriteStatus(
 	//UINT uiReadBack = 0;
 	UINT value;
 	UINT uiErasePattern[4] = {0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF,0xFFFFFFFF};
+	int bytes;
 
 //
 // need not write 0xFFFFFFFF because write requires an erase and erase will
@@ -967,10 +977,11 @@ static INT flashWriteStatus(
 			return STATUS_FAILURE;
 	  	}
 	  	//__udelay(1);
-	  	if(rdmalt(Adapter, FLASH_SPI_READQ_REG, &uiStatus, sizeof(uiStatus)) < 0)
-	  	{
-	  		BCM_DEBUG_PRINT(Adapter,DBG_TYPE_PRINTK, 0, 0,"Reading status of FLASH_SPI_READQ_REG fails");
-			return STATUS_FAILURE;
+		bytes = rdmalt(Adapter, FLASH_SPI_READQ_REG, &uiStatus, sizeof(uiStatus));
+		if (bytes < 0) {
+			uiStatus = bytes;
+			BCM_DEBUG_PRINT(Adapter, DBG_TYPE_PRINTK, 0, 0, "Reading status of FLASH_SPI_READQ_REG fails");
+			return uiStatus;
 		}
 	  	iRetries--;
 		//this will ensure that in there will be no changes in the current path.
@@ -1841,7 +1852,7 @@ static INT BeceemEEPROMWritePage( PMINI_ADAPTER Adapter, UINT uiData[], UINT uiO
 	 * What we are checking if the previous write has completed, and this
 	 * may take time. We should wait till the Empty bit is set. */
 	uiStatus = 0;
-	rdmalt( Adapter, EEPROM_SPI_Q_STATUS1_REG,&uiStatus, sizeof(uiStatus)) ;
+	rdmalt(Adapter, EEPROM_SPI_Q_STATUS1_REG, &uiStatus, sizeof(uiStatus));
 	while ( ( uiStatus & EEPROM_WRITE_QUEUE_EMPTY ) == 0 )
 	{
 		uiRetries--;
@@ -1855,7 +1866,7 @@ static INT BeceemEEPROMWritePage( PMINI_ADAPTER Adapter, UINT uiData[], UINT uiO
 					msleep(1);
 
 		uiStatus = 0;
-		rdmalt( Adapter, EEPROM_SPI_Q_STATUS1_REG,&uiStatus, sizeof(uiStatus)) ;
+		rdmalt(Adapter, EEPROM_SPI_Q_STATUS1_REG, &uiStatus, sizeof(uiStatus));
 		if(Adapter->device_removed == TRUE)
 		{
 			BCM_DEBUG_PRINT(Adapter,DBG_TYPE_PRINTK, 0, 0,"Modem got removed hence exiting from loop....");
@@ -2500,7 +2511,7 @@ static ULONG BcmReadFlashRDID(PMINI_ADAPTER Adapter)
 // Read SPI READQ REG. The output will be WWXXYYZZ.
 // The ID is 3Bytes long and is WWXXYY. ZZ needs to be Ignored.
 //
-	rdmalt(Adapter, FLASH_SPI_READQ_REG,(PUINT)&ulRDID, sizeof(ulRDID));
+	rdmalt(Adapter, FLASH_SPI_READQ_REG, (PUINT)&ulRDID, sizeof(ulRDID));
 
 	return (ulRDID >>8);
 
@@ -4735,8 +4746,8 @@ static INT BcmDoChipSelect(PMINI_ADAPTER Adapter, UINT offset)
 	Adapter->SelectedChip = ChipNum ;
 
 	//bit[13..12]  will select the appropriate chip
-	rdmalt(Adapter,FLASH_CONFIG_REG, &FlashConfig, 4);
-	rdmalt(Adapter,FLASH_GPIO_CONFIG_REG, &GPIOConfig, 4);
+	rdmalt(Adapter, FLASH_CONFIG_REG, &FlashConfig, 4);
+	rdmalt(Adapter, FLASH_GPIO_CONFIG_REG, &GPIOConfig, 4);
 
 	{
 		switch(ChipNum)
diff --git a/drivers/staging/comedi/comedi_fops.c b/drivers/staging/comedi/comedi_fops.c
index 5e78c77d5a08..0d18d80bcd25 100644
--- a/drivers/staging/comedi/comedi_fops.c
+++ b/drivers/staging/comedi/comedi_fops.c
@@ -1479,10 +1479,10 @@ static int comedi_mmap(struct file *file, struct vm_area_struct *vma)
 
 	dev_file_info = comedi_get_device_file_info(minor);
 	if (dev_file_info == NULL)
-	        return -ENODEV;
+		return -ENODEV;
 	dev = dev_file_info->device;
 	if (dev == NULL)
-	        return -ENODEV;
+		return -ENODEV;
 
 	mutex_lock(&dev->mutex);
 	if (!dev->attached) {
@@ -1556,10 +1556,10 @@ static unsigned int comedi_poll(struct file *file, poll_table * wait)
 	dev_file_info = comedi_get_device_file_info(minor);
 
 	if (dev_file_info == NULL)
-	        return -ENODEV;
+		return -ENODEV;
 	dev = dev_file_info->device;
 	if (dev == NULL)
-	        return -ENODEV;
+		return -ENODEV;
 
 	mutex_lock(&dev->mutex);
 	if (!dev->attached) {
@@ -1610,10 +1610,10 @@ static ssize_t comedi_write(struct file *file, const char __user *buf,
 	dev_file_info = comedi_get_device_file_info(minor);
 
 	if (dev_file_info == NULL)
-	        return -ENODEV;
+		return -ENODEV;
 	dev = dev_file_info->device;
 	if (dev == NULL)
-	        return -ENODEV;
+		return -ENODEV;
 
 	if (!dev->attached) {
 		DPRINTK("no driver configured on comedi%i\n", dev->minor);
@@ -1721,10 +1721,10 @@ static ssize_t comedi_read(struct file *file, char __user *buf, size_t nbytes,
 	dev_file_info = comedi_get_device_file_info(minor);
 
 	if (dev_file_info == NULL)
-	        return -ENODEV;
+		return -ENODEV;
 	dev = dev_file_info->device;
 	if (dev == NULL)
-	        return -ENODEV;
+		return -ENODEV;
 
 	if (!dev->attached) {
 		DPRINTK("no driver configured on comedi%i\n", dev->minor);
@@ -1931,10 +1931,10 @@ static int comedi_close(struct inode *inode, struct file *file)
 	dev_file_info = comedi_get_device_file_info(minor);
 
 	if (dev_file_info == NULL)
-	        return -ENODEV;
+		return -ENODEV;
 	dev = dev_file_info->device;
 	if (dev == NULL)
-	        return -ENODEV;
+		return -ENODEV;
 
 	mutex_lock(&dev->mutex);
 
@@ -1973,10 +1973,10 @@ static int comedi_fasync(int fd, struct file *file, int on)
 	dev_file_info = comedi_get_device_file_info(minor);
 
 	if (dev_file_info == NULL)
-	        return -ENODEV;
+		return -ENODEV;
 	dev = dev_file_info->device;
 	if (dev == NULL)
-	        return -ENODEV;
+		return -ENODEV;
 
 	return fasync_helper(fd, file, on, &dev->async_queue);
 }
@@ -2479,18 +2479,18 @@ static ssize_t store_max_read_buffer_kb(struct device *dev,
 					const char *buf, size_t count)
 {
 	struct comedi_device_file_info *info = dev_get_drvdata(dev);
-	unsigned long new_max_size_kb;
-	uint64_t new_max_size;
+	unsigned int new_max_size_kb;
+	unsigned int new_max_size;
+	int ret;
 	struct comedi_subdevice *const read_subdevice =
 	    comedi_get_read_subdevice(info);
 
-	if (strict_strtoul(buf, 10, &new_max_size_kb))
-		return -EINVAL;
-	if (new_max_size_kb != (uint32_t) new_max_size_kb)
-		return -EINVAL;
-	new_max_size = ((uint64_t) new_max_size_kb) * bytes_per_kibi;
-	if (new_max_size != (uint32_t) new_max_size)
+	ret = kstrtouint(buf, 10, &new_max_size_kb);
+	if (ret)
+		return ret;
+	if (new_max_size_kb > (UINT_MAX / bytes_per_kibi))
 		return -EINVAL;
+	new_max_size = new_max_size_kb * bytes_per_kibi;
 
 	mutex_lock(&info->device->mutex);
 	if (read_subdevice == NULL ||
@@ -2540,19 +2540,19 @@ static ssize_t store_read_buffer_kb(struct device *dev,
 				    const char *buf, size_t count)
 {
 	struct comedi_device_file_info *info = dev_get_drvdata(dev);
-	unsigned long new_size_kb;
-	uint64_t new_size;
+	unsigned int new_size_kb;
+	unsigned int new_size;
 	int retval;
+	int ret;
 	struct comedi_subdevice *const read_subdevice =
 	    comedi_get_read_subdevice(info);
 
-	if (strict_strtoul(buf, 10, &new_size_kb))
-		return -EINVAL;
-	if (new_size_kb != (uint32_t) new_size_kb)
-		return -EINVAL;
-	new_size = ((uint64_t) new_size_kb) * bytes_per_kibi;
-	if (new_size != (uint32_t) new_size)
+	ret = kstrtouint(buf, 10, &new_size_kb);
+	if (ret)
+		return ret;
+	if (new_size_kb > (UINT_MAX / bytes_per_kibi))
 		return -EINVAL;
+	new_size = new_size_kb * bytes_per_kibi;
 
 	mutex_lock(&info->device->mutex);
 	if (read_subdevice == NULL ||
@@ -2606,18 +2606,18 @@ static ssize_t store_max_write_buffer_kb(struct device *dev,
 					 const char *buf, size_t count)
 {
 	struct comedi_device_file_info *info = dev_get_drvdata(dev);
-	unsigned long new_max_size_kb;
-	uint64_t new_max_size;
+	unsigned int new_max_size_kb;
+	unsigned int new_max_size;
+	int ret;
 	struct comedi_subdevice *const write_subdevice =
 	    comedi_get_write_subdevice(info);
 
-	if (strict_strtoul(buf, 10, &new_max_size_kb))
-		return -EINVAL;
-	if (new_max_size_kb != (uint32_t) new_max_size_kb)
-		return -EINVAL;
-	new_max_size = ((uint64_t) new_max_size_kb) * bytes_per_kibi;
-	if (new_max_size != (uint32_t) new_max_size)
+	ret = kstrtouint(buf, 10, &new_max_size_kb);
+	if (ret)
+		return ret;
+	if (new_max_size_kb > (UINT_MAX / bytes_per_kibi))
 		return -EINVAL;
+	new_max_size = new_max_size_kb * bytes_per_kibi;
 
 	mutex_lock(&info->device->mutex);
 	if (write_subdevice == NULL ||
@@ -2667,19 +2667,19 @@ static ssize_t store_write_buffer_kb(struct device *dev,
 				     const char *buf, size_t count)
 {
 	struct comedi_device_file_info *info = dev_get_drvdata(dev);
-	unsigned long new_size_kb;
-	uint64_t new_size;
+	unsigned int new_size_kb;
+	unsigned int new_size;
 	int retval;
+	int ret;
 	struct comedi_subdevice *const write_subdevice =
 	    comedi_get_write_subdevice(info);
 
-	if (strict_strtoul(buf, 10, &new_size_kb))
-		return -EINVAL;
-	if (new_size_kb != (uint32_t) new_size_kb)
+	ret = kstrtouint(buf, 10, &new_size_kb);
+	if (ret)
+		return ret;
+	if (new_size_kb > (UINT_MAX / bytes_per_kibi))
 		return -EINVAL;
 	new_size = ((uint64_t) new_size_kb) * bytes_per_kibi;
-	if (new_size != (uint32_t) new_size)
-		return -EINVAL;
 
 	mutex_lock(&info->device->mutex);
 	if (write_subdevice == NULL ||
diff --git a/drivers/staging/comedi/drivers/addi-data/addi_common.c b/drivers/staging/comedi/drivers/addi-data/addi_common.c
index 6fb7594319c6..ca5bd9b8704a 100644
--- a/drivers/staging/comedi/drivers/addi-data/addi_common.c
+++ b/drivers/staging/comedi/drivers/addi-data/addi_common.c
@@ -145,78 +145,77 @@ void fpu_end(void)
 
 static DEFINE_PCI_DEVICE_TABLE(addi_apci_tbl) = {
 #ifdef CONFIG_APCI_3120
-	{APCI3120_BOARD_VENDOR_ID, 0x818D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+	{PCI_DEVICE(APCI3120_BOARD_VENDOR_ID, 0x818D)},
 #endif
 #ifdef CONFIG_APCI_1032
-	{APCI1032_BOARD_VENDOR_ID, 0x1003, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+	{PCI_DEVICE(APCI1032_BOARD_VENDOR_ID, 0x1003)},
 #endif
 #ifdef CONFIG_APCI_1516
-	{APCI1516_BOARD_VENDOR_ID, 0x1001, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+	{PCI_DEVICE(APCI1516_BOARD_VENDOR_ID, 0x1001)},
 #endif
 #ifdef CONFIG_APCI_2016
-	{APCI2016_BOARD_VENDOR_ID, 0x1002, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+	{PCI_DEVICE(APCI2016_BOARD_VENDOR_ID, 0x1002)},
 #endif
 #ifdef CONFIG_APCI_2032
-	{APCI2032_BOARD_VENDOR_ID, 0x1004, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+	{PCI_DEVICE(APCI2032_BOARD_VENDOR_ID, 0x1004)},
 #endif
 #ifdef CONFIG_APCI_2200
-	{APCI2200_BOARD_VENDOR_ID, 0x1005, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+	{PCI_DEVICE(APCI2200_BOARD_VENDOR_ID, 0x1005)},
 #endif
 #ifdef CONFIG_APCI_1564
-	{APCI1564_BOARD_VENDOR_ID, 0x1006, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+	{PCI_DEVICE(APCI1564_BOARD_VENDOR_ID, 0x1006)},
 #endif
 #ifdef CONFIG_APCI_1500
-	{APCI1500_BOARD_VENDOR_ID, 0x80fc, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+	{PCI_DEVICE(APCI1500_BOARD_VENDOR_ID, 0x80fc)},
 #endif
 #ifdef CONFIG_APCI_3001
-	{APCI3120_BOARD_VENDOR_ID, 0x828D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+	{PCI_DEVICE(APCI3120_BOARD_VENDOR_ID, 0x828D)},
 #endif
 #ifdef CONFIG_APCI_3501
-	{APCI3501_BOARD_VENDOR_ID, 0x3001, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+	{PCI_DEVICE(APCI3501_BOARD_VENDOR_ID, 0x3001)},
 #endif
 #ifdef CONFIG_APCI_035
-	{APCI035_BOARD_VENDOR_ID, 0x0300, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+	{PCI_DEVICE(APCI035_BOARD_VENDOR_ID,  0x0300)},
 #endif
 #ifdef CONFIG_APCI_3200
-	{APCI3200_BOARD_VENDOR_ID, 0x3000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+	{PCI_DEVICE(APCI3200_BOARD_VENDOR_ID, 0x3000)},
 #endif
 #ifdef CONFIG_APCI_3300
-	{APCI3200_BOARD_VENDOR_ID, 0x3007, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+	{PCI_DEVICE(APCI3200_BOARD_VENDOR_ID, 0x3007)},
 #endif
 #ifdef CONFIG_APCI_1710
-	{APCI1710_BOARD_VENDOR_ID, APCI1710_BOARD_DEVICE_ID,
-		PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+	{PCI_DEVICE(APCI1710_BOARD_VENDOR_ID, APCI1710_BOARD_DEVICE_ID)},
 #endif
 #ifdef CONFIG_APCI_16XX
-	{0x15B8, 0x1009, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
-	{0x15B8, 0x100A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+	{PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x1009)},
+	{PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x100A)},
 #endif
 #ifdef CONFIG_APCI_3XXX
-	{0x15B8, 0x3010, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
-	{0x15B8, 0x300F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
-	{0x15B8, 0x300E, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
-	{0x15B8, 0x3013, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
-	{0x15B8, 0x3014, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
-	{0x15B8, 0x3015, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
-	{0x15B8, 0x3016, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
-	{0x15B8, 0x3017, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
-	{0x15B8, 0x3018, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
-	{0x15B8, 0x3019, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
-	{0x15B8, 0x301A, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
-	{0x15B8, 0x301B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
-	{0x15B8, 0x301C, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
-	{0x15B8, 0x301D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
-	{0x15B8, 0x301E, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
-	{0x15B8, 0x301F, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
-	{0x15B8, 0x3020, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
-	{0x15B8, 0x3021, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
-	{0x15B8, 0x3022, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
-	{0x15B8, 0x3023, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
-	{0x15B8, 0x300B, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
-	{0x15B8, 0x3002, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
-	{0x15B8, 0x3003, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
-	{0x15B8, 0x3004, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
-	{0x15B8, 0x3024, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+	{PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x3010)},
+	{PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x300F)},
+	{PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x300E)},
+	{PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x3013)},
+	{PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x3014)},
+	{PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x3015)},
+	{PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x3016)},
+	{PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x3017)},
+	{PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x3018)},
+	{PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x3019)},
+	{PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x301A)},
+	{PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x301B)},
+	{PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x301C)},
+	{PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x301D)},
+	{PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x301E)},
+	{PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x301F)},
+	{PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x3020)},
+	{PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x3021)},
+	{PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x3022)},
+	{PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x3023)},
+	{PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x300B)},
+	{PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x3002)},
+	{PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x3003)},
+	{PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x3004)},
+	{PCI_DEVICE(PCI_VENDOR_ID_ADDIDATA, 0x3024)},
 #endif
 	{0}
 };
@@ -1019,7 +1018,7 @@ static const struct addi_board boardtypes[] = {
 #endif
 #ifdef CONFIG_APCI_16XX
 	{"apci1648",
-			0x15B8,
+			PCI_VENDOR_ID_ADDIDATA,
 			0x1009,
 			128,
 			0,
@@ -1075,7 +1074,7 @@ static const struct addi_board boardtypes[] = {
 		i_APCI16XX_InsnBitsWriteTTLIO},
 
 	{"apci1696",
-			0x15B8,
+			PCI_VENDOR_ID_ADDIDATA,
 			0x100A,
 			128,
 			0,
@@ -1132,7 +1131,7 @@ static const struct addi_board boardtypes[] = {
 #endif
 #ifdef CONFIG_APCI_3XXX
 	{"apci3000-16",
-			0x15B8,
+			PCI_VENDOR_ID_ADDIDATA,
 			0x3010,
 			256,
 			256,
@@ -1188,7 +1187,7 @@ static const struct addi_board boardtypes[] = {
 		i_APCI3XXX_InsnWriteTTLIO},
 
 	{"apci3000-8",
-			0x15B8,
+			PCI_VENDOR_ID_ADDIDATA,
 			0x300F,
 			256,
 			256,
@@ -1244,7 +1243,7 @@ static const struct addi_board boardtypes[] = {
 		i_APCI3XXX_InsnWriteTTLIO},
 
 	{"apci3000-4",
-			0x15B8,
+			PCI_VENDOR_ID_ADDIDATA,
 			0x300E,
 			256,
 			256,
@@ -1300,7 +1299,7 @@ static const struct addi_board boardtypes[] = {
 		i_APCI3XXX_InsnWriteTTLIO},
 
 	{"apci3006-16",
-			0x15B8,
+			PCI_VENDOR_ID_ADDIDATA,
 			0x3013,
 			256,
 			256,
@@ -1356,7 +1355,7 @@ static const struct addi_board boardtypes[] = {
 		i_APCI3XXX_InsnWriteTTLIO},
 
 	{"apci3006-8",
-			0x15B8,
+			PCI_VENDOR_ID_ADDIDATA,
 			0x3014,
 			256,
 			256,
@@ -1412,7 +1411,7 @@ static const struct addi_board boardtypes[] = {
 		i_APCI3XXX_InsnWriteTTLIO},
 
 	{"apci3006-4",
-			0x15B8,
+			PCI_VENDOR_ID_ADDIDATA,
 			0x3015,
 			256,
 			256,
@@ -1468,7 +1467,7 @@ static const struct addi_board boardtypes[] = {
 		i_APCI3XXX_InsnWriteTTLIO},
 
 	{"apci3010-16",
-			0x15B8,
+			PCI_VENDOR_ID_ADDIDATA,
 			0x3016,
 			256,
 			256,
@@ -1524,7 +1523,7 @@ static const struct addi_board boardtypes[] = {
 		i_APCI3XXX_InsnWriteTTLIO},
 
 	{"apci3010-8",
-			0x15B8,
+			PCI_VENDOR_ID_ADDIDATA,
 			0x3017,
 			256,
 			256,
@@ -1580,7 +1579,7 @@ static const struct addi_board boardtypes[] = {
 		i_APCI3XXX_InsnWriteTTLIO},
 
 	{"apci3010-4",
-			0x15B8,
+			PCI_VENDOR_ID_ADDIDATA,
 			0x3018,
 			256,
 			256,
@@ -1636,7 +1635,7 @@ static const struct addi_board boardtypes[] = {
 		i_APCI3XXX_InsnWriteTTLIO},
 
 	{"apci3016-16",
-			0x15B8,
+			PCI_VENDOR_ID_ADDIDATA,
 			0x3019,
 			256,
 			256,
@@ -1692,7 +1691,7 @@ static const struct addi_board boardtypes[] = {
 		i_APCI3XXX_InsnWriteTTLIO},
 
 	{"apci3016-8",
-			0x15B8,
+			PCI_VENDOR_ID_ADDIDATA,
 			0x301A,
 			256,
 			256,
@@ -1748,7 +1747,7 @@ static const struct addi_board boardtypes[] = {
 		i_APCI3XXX_InsnWriteTTLIO},
 
 	{"apci3016-4",
-			0x15B8,
+			PCI_VENDOR_ID_ADDIDATA,
 			0x301B,
 			256,
 			256,
@@ -1804,7 +1803,7 @@ static const struct addi_board boardtypes[] = {
 		i_APCI3XXX_InsnWriteTTLIO},
 
 	{"apci3100-16-4",
-			0x15B8,
+			PCI_VENDOR_ID_ADDIDATA,
 			0x301C,
 			256,
 			256,
@@ -1860,7 +1859,7 @@ static const struct addi_board boardtypes[] = {
 		i_APCI3XXX_InsnWriteTTLIO},
 
 	{"apci3100-8-4",
-			0x15B8,
+			PCI_VENDOR_ID_ADDIDATA,
 			0x301D,
 			256,
 			256,
@@ -1916,7 +1915,7 @@ static const struct addi_board boardtypes[] = {
 		i_APCI3XXX_InsnWriteTTLIO},
 
 	{"apci3106-16-4",
-			0x15B8,
+			PCI_VENDOR_ID_ADDIDATA,
 			0x301E,
 			256,
 			256,
@@ -1972,7 +1971,7 @@ static const struct addi_board boardtypes[] = {
 		i_APCI3XXX_InsnWriteTTLIO},
 
 	{"apci3106-8-4",
-			0x15B8,
+			PCI_VENDOR_ID_ADDIDATA,
 			0x301F,
 			256,
 			256,
@@ -2028,7 +2027,7 @@ static const struct addi_board boardtypes[] = {
 		i_APCI3XXX_InsnWriteTTLIO},
 
 	{"apci3110-16-4",
-			0x15B8,
+			PCI_VENDOR_ID_ADDIDATA,
 			0x3020,
 			256,
 			256,
@@ -2084,7 +2083,7 @@ static const struct addi_board boardtypes[] = {
 		i_APCI3XXX_InsnWriteTTLIO},
 
 	{"apci3110-8-4",
-			0x15B8,
+			PCI_VENDOR_ID_ADDIDATA,
 			0x3021,
 			256,
 			256,
@@ -2140,7 +2139,7 @@ static const struct addi_board boardtypes[] = {
 		i_APCI3XXX_InsnWriteTTLIO},
 
 	{"apci3116-16-4",
-			0x15B8,
+			PCI_VENDOR_ID_ADDIDATA,
 			0x3022,
 			256,
 			256,
@@ -2196,7 +2195,7 @@ static const struct addi_board boardtypes[] = {
 		i_APCI3XXX_InsnWriteTTLIO},
 
 	{"apci3116-8-4",
-			0x15B8,
+			PCI_VENDOR_ID_ADDIDATA,
 			0x3023,
 			256,
 			256,
@@ -2252,7 +2251,7 @@ static const struct addi_board boardtypes[] = {
 		i_APCI3XXX_InsnWriteTTLIO},
 
 	{"apci3003",
-			0x15B8,
+			PCI_VENDOR_ID_ADDIDATA,
 			0x300B,
 			256,
 			256,
@@ -2307,7 +2306,7 @@ static const struct addi_board boardtypes[] = {
 		NULL},
 
 	{"apci3002-16",
-			0x15B8,
+			PCI_VENDOR_ID_ADDIDATA,
 			0x3002,
 			256,
 			256,
@@ -2362,7 +2361,7 @@ static const struct addi_board boardtypes[] = {
 		NULL},
 
 	{"apci3002-8",
-			0x15B8,
+			PCI_VENDOR_ID_ADDIDATA,
 			0x3003,
 			256,
 			256,
@@ -2417,7 +2416,7 @@ static const struct addi_board boardtypes[] = {
 		NULL},
 
 	{"apci3002-4",
-			0x15B8,
+			PCI_VENDOR_ID_ADDIDATA,
 			0x3004,
 			256,
 			256,
@@ -2472,7 +2471,7 @@ static const struct addi_board boardtypes[] = {
 		NULL},
 
 	{"apci3500",
-			0x15B8,
+			PCI_VENDOR_ID_ADDIDATA,
 			0x3024,
 			256,
 			256,
diff --git a/drivers/staging/comedi/drivers/adl_pci7230.c b/drivers/staging/comedi/drivers/adl_pci7230.c
index 72a7258b5b92..20d570554fa4 100644
--- a/drivers/staging/comedi/drivers/adl_pci7230.c
+++ b/drivers/staging/comedi/drivers/adl_pci7230.c
@@ -44,15 +44,7 @@ Configuration Options:
 #define PCI_DEVICE_ID_PCI7230 0x7230
 
 static DEFINE_PCI_DEVICE_TABLE(adl_pci7230_pci_table) = {
-	{
-		PCI_VENDOR_ID_ADLINK,
-		PCI_DEVICE_ID_PCI7230,
-		PCI_ANY_ID,
-		PCI_ANY_ID,
-		0,
-		0,
-		0
-	},
+	{ PCI_DEVICE(PCI_VENDOR_ID_ADLINK, PCI_DEVICE_ID_PCI7230) },
 	{0}
 };
 
diff --git a/drivers/staging/comedi/drivers/adl_pci7296.c b/drivers/staging/comedi/drivers/adl_pci7296.c
index f28fe6bec050..9a2320537bdb 100644
--- a/drivers/staging/comedi/drivers/adl_pci7296.c
+++ b/drivers/staging/comedi/drivers/adl_pci7296.c
@@ -49,10 +49,8 @@ Configuration Options:
 #define PCI_DEVICE_ID_PCI7296 0x7296
 
 static DEFINE_PCI_DEVICE_TABLE(adl_pci7296_pci_table) = {
-	{
-	PCI_VENDOR_ID_ADLINK, PCI_DEVICE_ID_PCI7296, PCI_ANY_ID,
-		    PCI_ANY_ID, 0, 0, 0}, {
-	0}
+	{ PCI_DEVICE(PCI_VENDOR_ID_ADLINK, PCI_DEVICE_ID_PCI7296) },
+	{0}
 };
 
 MODULE_DEVICE_TABLE(pci, adl_pci7296_pci_table);
diff --git a/drivers/staging/comedi/drivers/adl_pci7432.c b/drivers/staging/comedi/drivers/adl_pci7432.c
index 262da7b29b28..86ee21976041 100644
--- a/drivers/staging/comedi/drivers/adl_pci7432.c
+++ b/drivers/staging/comedi/drivers/adl_pci7432.c
@@ -44,10 +44,8 @@ Configuration Options:
 #define PCI_DEVICE_ID_PCI7432 0x7432
 
 static DEFINE_PCI_DEVICE_TABLE(adl_pci7432_pci_table) = {
-	{
-	PCI_VENDOR_ID_ADLINK, PCI_DEVICE_ID_PCI7432, PCI_ANY_ID,
-		    PCI_ANY_ID, 0, 0, 0}, {
-	0}
+	{ PCI_DEVICE(PCI_VENDOR_ID_ADLINK, PCI_DEVICE_ID_PCI7432) },
+	{0}
 };
 
 MODULE_DEVICE_TABLE(pci, adl_pci7432_pci_table);
diff --git a/drivers/staging/comedi/drivers/adl_pci8164.c b/drivers/staging/comedi/drivers/adl_pci8164.c
index 767a594935c7..3b83d65bc1bc 100644
--- a/drivers/staging/comedi/drivers/adl_pci8164.c
+++ b/drivers/staging/comedi/drivers/adl_pci8164.c
@@ -57,10 +57,8 @@ Configuration Options:
 #define PCI_DEVICE_ID_PCI8164 0x8164
 
 static DEFINE_PCI_DEVICE_TABLE(adl_pci8164_pci_table) = {
-	{
-	PCI_VENDOR_ID_ADLINK, PCI_DEVICE_ID_PCI8164, PCI_ANY_ID,
-		    PCI_ANY_ID, 0, 0, 0}, {
-	0}
+	{ PCI_DEVICE(PCI_VENDOR_ID_ADLINK, PCI_DEVICE_ID_PCI8164) },
+	{0}
 };
 
 MODULE_DEVICE_TABLE(pci, adl_pci8164_pci_table);
diff --git a/drivers/staging/comedi/drivers/adl_pci9111.c b/drivers/staging/comedi/drivers/adl_pci9111.c
index fc48bae42ab7..2a9bd88a4abb 100644
--- a/drivers/staging/comedi/drivers/adl_pci9111.c
+++ b/drivers/staging/comedi/drivers/adl_pci9111.c
@@ -311,10 +311,8 @@ static const struct comedi_lrange pci9111_hr_ai_range = {
 };
 
 static DEFINE_PCI_DEVICE_TABLE(pci9111_pci_table) = {
-	{ PCI_VENDOR_ID_ADLINK, PCI9111_HR_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,
-	  0, 0, 0 },
-	/* { PCI_VENDOR_ID_ADLINK, PCI9111_HG_DEVICE_ID, PCI_ANY_ID, PCI_ANY_ID,
-	 *   0, 0, 0 }, */
+	{ PCI_DEVICE(PCI_VENDOR_ID_ADLINK, PCI9111_HR_DEVICE_ID) },
+	/* { PCI_DEVICE(PCI_VENDOR_ID_ADLINK, PCI9111_HG_DEVICE_ID) }, */
 	{ 0 }
 };
 
diff --git a/drivers/staging/comedi/drivers/adv_pci1710.c b/drivers/staging/comedi/drivers/adv_pci1710.c
index da2b75b15d4e..8318c82a555a 100644
--- a/drivers/staging/comedi/drivers/adv_pci1710.c
+++ b/drivers/staging/comedi/drivers/adv_pci1710.c
@@ -1382,16 +1382,14 @@ static int pci1710_attach(struct comedi_device *dev,
 	int i;
 	int board_index;
 
-	printk("comedi%d: adv_pci1710: ", dev->minor);
+	dev_info(dev->hw_dev, "comedi%d: adv_pci1710:\n", dev->minor);
 
 	opt_bus = it->options[0];
 	opt_slot = it->options[1];
 
 	ret = alloc_private(dev, sizeof(struct pci1710_private));
-	if (ret < 0) {
-		printk(" - Allocation failed!\n");
+	if (ret < 0)
 		return -ENOMEM;
-	}
 
 	/* Look for matching PCI device */
 	errstr = "not found!";
@@ -1436,10 +1434,10 @@ static int pci1710_attach(struct comedi_device *dev,
 
 	if (!pcidev) {
 		if (opt_bus || opt_slot) {
-			printk(" - Card at b:s %d:%d %s\n",
-			       opt_bus, opt_slot, errstr);
+			dev_err(dev->hw_dev, "- Card at b:s %d:%d %s\n",
+				opt_bus, opt_slot, errstr);
 		} else {
-			printk(" - Card %s\n", errstr);
+			dev_err(dev->hw_dev, "- Card %s\n", errstr);
 		}
 		return -EIO;
 	}
@@ -1450,8 +1448,8 @@ static int pci1710_attach(struct comedi_device *dev,
 	irq = pcidev->irq;
 	iobase = pci_resource_start(pcidev, 2);
 
-	printk(", b:s:f=%d:%d:%d, io=0x%4lx", pci_bus, pci_slot, pci_func,
-	       iobase);
+	dev_dbg(dev->hw_dev, "b:s:f=%d:%d:%d, io=0x%4lx\n", pci_bus, pci_slot,
+		pci_func, iobase);
 
 	dev->iobase = iobase;
 
@@ -1471,10 +1469,8 @@ static int pci1710_attach(struct comedi_device *dev,
 		n_subdevices++;
 
 	ret = alloc_subdevices(dev, n_subdevices);
-	if (ret < 0) {
-		printk(" - Allocation failed!\n");
+	if (ret < 0)
 		return ret;
-	}
 
 	pci1710_reset(dev);
 
@@ -1483,24 +1479,20 @@ static int pci1710_attach(struct comedi_device *dev,
 			if (request_irq(irq, interrupt_service_pci1710,
 					IRQF_SHARED, "Advantech PCI-1710",
 					dev)) {
-				printk
-				    (", unable to allocate IRQ %d, DISABLING IT",
-				     irq);
+				dev_dbg(dev->hw_dev, "unable to allocate IRQ %d, DISABLING IT",
+					irq);
 				irq = 0;	/* Can't use IRQ */
 			} else {
-				printk(", irq=%u", irq);
+				dev_dbg(dev->hw_dev, "irq=%u", irq);
 			}
 		} else {
-			printk(", IRQ disabled");
+			dev_dbg(dev->hw_dev, "IRQ disabled");
 		}
 	} else {
 		irq = 0;
 	}
 
 	dev->irq = irq;
-
-	printk(".\n");
-
 	subdev = 0;
 
 	if (this_board->n_aichan) {
diff --git a/drivers/staging/comedi/drivers/adv_pci_dio.c b/drivers/staging/comedi/drivers/adv_pci_dio.c
index 69334f6f64e8..537e58534275 100644
--- a/drivers/staging/comedi/drivers/adv_pci_dio.c
+++ b/drivers/staging/comedi/drivers/adv_pci_dio.c
@@ -1106,13 +1106,10 @@ static int pci_dio_attach(struct comedi_device *dev,
 	unsigned long iobase;
 	struct pci_dev *pcidev = NULL;
 
-	printk("comedi%d: adv_pci_dio: ", dev->minor);
 
 	ret = alloc_private(dev, sizeof(struct pci_dio_private));
-	if (ret < 0) {
-		printk(", Error: Cann't allocate private memory!\n");
+	if (ret < 0)
 		return -ENOMEM;
-	}
 
 	for_each_pci_dev(pcidev) {
 		/*  loop through cards supported by this driver */
@@ -1140,19 +1137,18 @@ static int pci_dio_attach(struct comedi_device *dev,
 	}
 
 	if (!dev->board_ptr) {
-		printk(", Error: Requested type of the card was not found!\n");
+		dev_err(dev->hw_dev, "Error: Requested type of the card was not found!\n");
 		return -EIO;
 	}
 
 	if (comedi_pci_enable(pcidev, driver_pci_dio.driver_name)) {
-		printk
-		    (", Error: Can't enable PCI device and request regions!\n");
+		dev_err(dev->hw_dev, "Error: Can't enable PCI device and request regions!\n");
 		return -EIO;
 	}
 	iobase = pci_resource_start(pcidev, this_board->main_pci_region);
-	printk(", b:s:f=%d:%d:%d, io=0x%4lx",
-	       pcidev->bus->number, PCI_SLOT(pcidev->devfn),
-	       PCI_FUNC(pcidev->devfn), iobase);
+	dev_dbg(dev->hw_dev, "b:s:f=%d:%d:%d, io=0x%4lx\n",
+		pcidev->bus->number, PCI_SLOT(pcidev->devfn),
+		PCI_FUNC(pcidev->devfn), iobase);
 
 	dev->iobase = iobase;
 	dev->board_name = this_board->name;
@@ -1177,15 +1173,10 @@ static int pci_dio_attach(struct comedi_device *dev,
 	}
 
 	ret = alloc_subdevices(dev, n_subdevices);
-	if (ret < 0) {
-		printk(", Error: Cann't allocate subdevice memory!\n");
+	if (ret < 0)
 		return ret;
-	}
-
-	printk(".\n");
 
 	subdev = 0;
-
 	for (i = 0; i < MAX_DI_SUBDEVS; i++)
 		if (this_board->sdi[i].chans) {
 			s = dev->subdevices + subdev;
diff --git a/drivers/staging/comedi/drivers/amplc_dio200.c b/drivers/staging/comedi/drivers/amplc_dio200.c
index 93bbe4ec318d..566cc4411452 100644
--- a/drivers/staging/comedi/drivers/amplc_dio200.c
+++ b/drivers/staging/comedi/drivers/amplc_dio200.c
@@ -421,12 +421,9 @@ static const struct dio200_layout_struct dio200_layouts[] = {
 
 #ifdef CONFIG_COMEDI_PCI
 static DEFINE_PCI_DEVICE_TABLE(dio200_pci_table) = {
-	{
-	PCI_VENDOR_ID_AMPLICON, PCI_DEVICE_ID_AMPLICON_PCI215,
-		    PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, {
-	PCI_VENDOR_ID_AMPLICON, PCI_DEVICE_ID_AMPLICON_PCI272,
-		    PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, {
-	0}
+	{ PCI_DEVICE(PCI_VENDOR_ID_AMPLICON, PCI_DEVICE_ID_AMPLICON_PCI215) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_AMPLICON, PCI_DEVICE_ID_AMPLICON_PCI272) },
+	{0}
 };
 
 MODULE_DEVICE_TABLE(pci, dio200_pci_table);
diff --git a/drivers/staging/comedi/drivers/amplc_pc236.c b/drivers/staging/comedi/drivers/amplc_pc236.c
index 48246cd50d47..7972cadd403e 100644
--- a/drivers/staging/comedi/drivers/amplc_pc236.c
+++ b/drivers/staging/comedi/drivers/amplc_pc236.c
@@ -134,10 +134,8 @@ static const struct pc236_board pc236_boards[] = {
 
 #ifdef CONFIG_COMEDI_PCI
 static DEFINE_PCI_DEVICE_TABLE(pc236_pci_table) = {
-	{
-	PCI_VENDOR_ID_AMPLICON, PCI_DEVICE_ID_AMPLICON_PCI236,
-		    PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, {
-	0}
+	{ PCI_DEVICE(PCI_VENDOR_ID_AMPLICON, PCI_DEVICE_ID_AMPLICON_PCI236) },
+	{0}
 };
 
 MODULE_DEVICE_TABLE(pci, pc236_pci_table);
diff --git a/drivers/staging/comedi/drivers/amplc_pc263.c b/drivers/staging/comedi/drivers/amplc_pc263.c
index 8a3388079094..191ac0d23ce7 100644
--- a/drivers/staging/comedi/drivers/amplc_pc263.c
+++ b/drivers/staging/comedi/drivers/amplc_pc263.c
@@ -101,10 +101,8 @@ static const struct pc263_board pc263_boards[] = {
 
 #ifdef CONFIG_COMEDI_PCI
 static DEFINE_PCI_DEVICE_TABLE(pc263_pci_table) = {
-	{
-	PCI_VENDOR_ID_AMPLICON, PCI_DEVICE_ID_AMPLICON_PCI263,
-		    PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, {
-	0}
+	{ PCI_DEVICE(PCI_VENDOR_ID_AMPLICON, PCI_DEVICE_ID_AMPLICON_PCI263) },
+	{0}
 };
 
 MODULE_DEVICE_TABLE(pci, pc263_pci_table);
diff --git a/drivers/staging/comedi/drivers/amplc_pci224.c b/drivers/staging/comedi/drivers/amplc_pci224.c
index 1b5ba1c27259..b278917cec25 100644
--- a/drivers/staging/comedi/drivers/amplc_pci224.c
+++ b/drivers/staging/comedi/drivers/amplc_pci224.c
@@ -384,12 +384,9 @@ static const struct pci224_board pci224_boards[] = {
  */
 
 static DEFINE_PCI_DEVICE_TABLE(pci224_pci_table) = {
-	{
-	PCI_VENDOR_ID_AMPLICON, PCI_DEVICE_ID_AMPLICON_PCI224,
-		    PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, {
-	PCI_VENDOR_ID_AMPLICON, PCI_DEVICE_ID_AMPLICON_PCI234,
-		    PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, {
-	0}
+	{ PCI_DEVICE(PCI_VENDOR_ID_AMPLICON, PCI_DEVICE_ID_AMPLICON_PCI224) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_AMPLICON, PCI_DEVICE_ID_AMPLICON_PCI234) },
+	{0}
 };
 
 MODULE_DEVICE_TABLE(pci, pci224_pci_table);
diff --git a/drivers/staging/comedi/drivers/amplc_pci230.c b/drivers/staging/comedi/drivers/amplc_pci230.c
index 7edeb1103dc8..538979551c8e 100644
--- a/drivers/staging/comedi/drivers/amplc_pci230.c
+++ b/drivers/staging/comedi/drivers/amplc_pci230.c
@@ -501,12 +501,9 @@ static const struct pci230_board pci230_boards[] = {
 };
 
 static DEFINE_PCI_DEVICE_TABLE(pci230_pci_table) = {
-	{
-	PCI_VENDOR_ID_AMPLICON, PCI_DEVICE_ID_PCI230, PCI_ANY_ID,
-		    PCI_ANY_ID, 0, 0, 0}, {
-	PCI_VENDOR_ID_AMPLICON, PCI_DEVICE_ID_PCI260, PCI_ANY_ID,
-		    PCI_ANY_ID, 0, 0, 0}, {
-	0}
+	{ PCI_DEVICE(PCI_VENDOR_ID_AMPLICON, PCI_DEVICE_ID_PCI230) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_AMPLICON, PCI_DEVICE_ID_PCI260) },
+	{0}
 };
 
 MODULE_DEVICE_TABLE(pci, pci230_pci_table);
diff --git a/drivers/staging/comedi/drivers/cb_das16_cs.c b/drivers/staging/comedi/drivers/cb_das16_cs.c
index e171c56112d8..49404f49f7b7 100644
--- a/drivers/staging/comedi/drivers/cb_das16_cs.c
+++ b/drivers/staging/comedi/drivers/cb_das16_cs.c
@@ -99,7 +99,7 @@ static struct comedi_driver driver_das16cs = {
 	.detach = das16cs_detach,
 };
 
-static struct pcmcia_device *cur_dev = NULL;
+static struct pcmcia_device *cur_dev;
 
 static const struct comedi_lrange das16cs_ai_range = { 4, {
 							   RANGE(-10, 10),
@@ -150,7 +150,7 @@ static const struct das16cs_board *das16cs_probe(struct comedi_device *dev,
 			return das16cs_boards + i;
 	}
 
-	printk("unknown board!\n");
+	dev_dbg(dev->hw_dev, "unknown board!\n");
 
 	return NULL;
 }
@@ -163,20 +163,19 @@ static int das16cs_attach(struct comedi_device *dev,
 	int ret;
 	int i;
 
-	printk("comedi%d: cb_das16_cs: ", dev->minor);
+	dev_dbg(dev->hw_dev, "comedi%d: cb_das16_cs: attached\n", dev->minor);
 
 	link = cur_dev;		/* XXX hack */
 	if (!link)
 		return -EIO;
 
 	dev->iobase = link->resource[0]->start;
-	printk("I/O base=0x%04lx ", dev->iobase);
+	dev_dbg(dev->hw_dev, "I/O base=0x%04lx\n", dev->iobase);
 
-	printk("fingerprint:\n");
+	dev_dbg(dev->hw_dev, "fingerprint:\n");
 	for (i = 0; i < 48; i += 2)
-		printk("%04x ", inw(dev->iobase + i));
+		dev_dbg(dev->hw_dev, "%04x\n", inw(dev->iobase + i));
 
-	printk("\n");
 
 	ret = request_irq(link->irq, das16cs_interrupt,
 			  IRQF_SHARED, "cb_das16_cs", dev);
@@ -185,7 +184,7 @@ static int das16cs_attach(struct comedi_device *dev,
 
 	dev->irq = link->irq;
 
-	printk("irq=%u ", dev->irq);
+	dev_dbg(dev->hw_dev, "irq=%u\n", dev->irq);
 
 	dev->board_ptr = das16cs_probe(dev, link);
 	if (!dev->board_ptr)
@@ -252,14 +251,13 @@ static int das16cs_attach(struct comedi_device *dev,
 		s->type = COMEDI_SUBD_UNUSED;
 	}
 
-	printk("attached\n");
 
 	return 1;
 }
 
 static int das16cs_detach(struct comedi_device *dev)
 {
-	printk("comedi%d: das16cs: remove\n", dev->minor);
+	dev_dbg(dev->hw_dev, "comedi%d: das16cs: remove\n", dev->minor);
 
 	if (dev->irq)
 		free_irq(dev->irq, dev);
@@ -312,7 +310,7 @@ static int das16cs_ai_rinsn(struct comedi_device *dev,
 				break;
 		}
 		if (to == TIMEOUT) {
-			printk("cb_das16_cs: ai timeout\n");
+			dev_dbg(dev->hw_dev, "cb_das16_cs: ai timeout\n");
 			return -ETIME;
 		}
 		data[i] = (unsigned short)inw(dev->iobase + 0);
diff --git a/drivers/staging/comedi/drivers/cb_pcidas.c b/drivers/staging/comedi/drivers/cb_pcidas.c
index 61968a505f24..7e4ffcfdac62 100644
--- a/drivers/staging/comedi/drivers/cb_pcidas.c
+++ b/drivers/staging/comedi/drivers/cb_pcidas.c
@@ -565,8 +565,6 @@ static int cb_pcidas_attach(struct comedi_device *dev,
 	int index;
 	int i;
 
-	printk("comedi%d: cb_pcidas: ", dev->minor);
-
 /*
  * Allocate the private structure area.
  */
@@ -576,7 +574,6 @@ static int cb_pcidas_attach(struct comedi_device *dev,
 /*
  * Probe the device to determine what device in the series it is.
  */
-	printk("\n");
 
 	for_each_pci_dev(pcidev) {
 		/*  is it not a computer boards card? */
@@ -600,20 +597,20 @@ static int cb_pcidas_attach(struct comedi_device *dev,
 		}
 	}
 
-	printk("No supported ComputerBoards/MeasurementComputing card found on "
-	       "requested position\n");
+	dev_err(dev->hw_dev, "No supported ComputerBoards/MeasurementComputing card found on requested position\n");
 	return -EIO;
 
 found:
 
-	printk("Found %s on bus %i, slot %i\n", cb_pcidas_boards[index].name,
-	       pcidev->bus->number, PCI_SLOT(pcidev->devfn));
+	dev_dbg(dev->hw_dev, "Found %s on bus %i, slot %i\n",
+		cb_pcidas_boards[index].name, pcidev->bus->number,
+		PCI_SLOT(pcidev->devfn));
 
 	/*
 	 * Enable PCI device and reserve I/O ports.
 	 */
 	if (comedi_pci_enable(pcidev, "cb_pcidas")) {
-		printk(" Failed to enable PCI device and request regions\n");
+		dev_err(dev->hw_dev, "Failed to enable PCI device and request regions\n");
 		return -EIO;
 	}
 	/*
@@ -639,7 +636,8 @@ found:
 	/*  get irq */
 	if (request_irq(devpriv->pci_dev->irq, cb_pcidas_interrupt,
 			IRQF_SHARED, "cb_pcidas", dev)) {
-		printk(" unable to allocate irq %d\n", devpriv->pci_dev->irq);
+		dev_dbg(dev->hw_dev, "unable to allocate irq %d\n",
+			devpriv->pci_dev->irq);
 		return -EINVAL;
 	}
 	dev->irq = devpriv->pci_dev->irq;
@@ -768,7 +766,6 @@ found:
  */
 static int cb_pcidas_detach(struct comedi_device *dev)
 {
-	printk("comedi%d: cb_pcidas: remove\n", dev->minor);
 
 	if (devpriv) {
 		if (devpriv->s5933_config) {
@@ -776,8 +773,8 @@ static int cb_pcidas_detach(struct comedi_device *dev)
 			outl(INTCSR_INBOX_INTR_STATUS,
 			     devpriv->s5933_config + AMCC_OP_REG_INTCSR);
 #ifdef CB_PCIDAS_DEBUG
-			printk("detaching, incsr is 0x%x\n",
-			       inl(devpriv->s5933_config + AMCC_OP_REG_INTCSR));
+			dev_dbg(dev->hw_dev, "detaching, incsr is 0x%x\n",
+				inl(devpriv->s5933_config + AMCC_OP_REG_INTCSR));
 #endif
 		}
 	}
@@ -858,7 +855,8 @@ static int ai_config_calibration_source(struct comedi_device *dev,
 	unsigned int source = data[1];
 
 	if (source >= num_calibration_sources) {
-		printk("invalid calibration source: %i\n", source);
+		dev_err(dev->hw_dev, "invalid calibration source: %i\n",
+			source);
 		return -EINVAL;
 	}
 
@@ -1279,7 +1277,7 @@ static int cb_pcidas_ai_cmd(struct comedi_device *dev,
 	outw(bits, devpriv->control_status + ADCMUX_CONT);
 
 #ifdef CB_PCIDAS_DEBUG
-	printk("comedi: sent 0x%x to adcmux control\n", bits);
+	dev_dbg(dev->hw_dev, "comedi: sent 0x%x to adcmux control\n", bits);
 #endif
 
 	/*  load counters */
@@ -1306,7 +1304,8 @@ static int cb_pcidas_ai_cmd(struct comedi_device *dev,
 		devpriv->adc_fifo_bits |= INT_FHF;	/* interrupt fifo half full */
 	}
 #ifdef CB_PCIDAS_DEBUG
-	printk("comedi: adc_fifo_bits are 0x%x\n", devpriv->adc_fifo_bits);
+	dev_dbg(dev->hw_dev, "comedi: adc_fifo_bits are 0x%x\n",
+		devpriv->adc_fifo_bits);
 #endif
 	/*  enable (and clear) interrupts */
 	outw(devpriv->adc_fifo_bits | EOAI | INT | LADFUL,
@@ -1332,7 +1331,7 @@ static int cb_pcidas_ai_cmd(struct comedi_device *dev,
 		bits |= BURSTE;
 	outw(bits, devpriv->control_status + TRIG_CONTSTAT);
 #ifdef CB_PCIDAS_DEBUG
-	printk("comedi: sent 0x%x to trig control\n", bits);
+	dev_dbg(dev->hw_dev, "comedi: sent 0x%x to trig control\n", bits);
 #endif
 
 	return 0;
@@ -1549,7 +1548,8 @@ static int cb_pcidas_ao_inttrig(struct comedi_device *dev,
 	spin_lock_irqsave(&dev->spinlock, flags);
 	devpriv->adc_fifo_bits |= DAEMIE | DAHFIE;
 #ifdef CB_PCIDAS_DEBUG
-	printk("comedi: adc_fifo_bits are 0x%x\n", devpriv->adc_fifo_bits);
+	dev_dbg(dev->hw_dev, "comedi: adc_fifo_bits are 0x%x\n",
+		devpriv->adc_fifo_bits);
 #endif
 	/*  enable and clear interrupts */
 	outw(devpriv->adc_fifo_bits | DAEMI | DAHFI,
@@ -1559,7 +1559,8 @@ static int cb_pcidas_ao_inttrig(struct comedi_device *dev,
 	devpriv->ao_control_bits |= DAC_START | DACEN | DAC_EMPTY;
 	outw(devpriv->ao_control_bits, devpriv->control_status + DAC_CSR);
 #ifdef CB_PCIDAS_DEBUG
-	printk("comedi: sent 0x%x to dac control\n", devpriv->ao_control_bits);
+	dev_dbg(dev->hw_dev, "comedi: sent 0x%x to dac control\n",
+		devpriv->ao_control_bits);
 #endif
 	spin_unlock_irqrestore(&dev->spinlock, flags);
 
@@ -1587,8 +1588,9 @@ static irqreturn_t cb_pcidas_interrupt(int irq, void *d)
 
 	s5933_status = inl(devpriv->s5933_config + AMCC_OP_REG_INTCSR);
 #ifdef CB_PCIDAS_DEBUG
-	printk("intcsr 0x%x\n", s5933_status);
-	printk("mbef 0x%x\n", inl(devpriv->s5933_config + AMCC_OP_REG_MBEF));
+	dev_dbg(dev->hw_dev, "intcsr 0x%x\n", s5933_status);
+	dev_dbg(dev->hw_dev, "mbef 0x%x\n",
+		inl(devpriv->s5933_config + AMCC_OP_REG_MBEF));
 #endif
 
 	if ((INTCSR_INTR_ASSERTED & s5933_status) == 0)
diff --git a/drivers/staging/comedi/drivers/cb_pcidas64.c b/drivers/staging/comedi/drivers/cb_pcidas64.c
index 1e324198996c..c9e8c4785768 100644
--- a/drivers/staging/comedi/drivers/cb_pcidas64.c
+++ b/drivers/staging/comedi/drivers/cb_pcidas64.c
@@ -1739,8 +1739,6 @@ static int attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	uint32_t local_range, local_decode;
 	int retval;
 
-	printk("comedi%d: cb_pcidas64\n", dev->minor);
-
 /*
  * Allocate the private structure area.
  */
@@ -1781,12 +1779,11 @@ static int attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		return -EIO;
 	}
 
-	printk("Found %s on bus %i, slot %i\n", board(dev)->name,
-	       pcidev->bus->number, PCI_SLOT(pcidev->devfn));
+	dev_dbg(dev->hw_dev, "Found %s on bus %i, slot %i\n", board(dev)->name,
+		pcidev->bus->number, PCI_SLOT(pcidev->devfn));
 
 	if (comedi_pci_enable(pcidev, driver_cb_pcidas.driver_name)) {
-		printk(KERN_WARNING
-		       " failed to enable PCI device and request regions\n");
+		dev_warn(dev->hw_dev, "failed to enable PCI device and request regions\n");
 		return -EIO;
 	}
 	pci_set_master(pcidev);
@@ -1814,7 +1811,7 @@ static int attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	if (!priv(dev)->plx9080_iobase || !priv(dev)->main_iobase
 	    || !priv(dev)->dio_counter_iobase) {
-		printk(" failed to remap io memory\n");
+		dev_warn(dev->hw_dev, "failed to remap io memory\n");
 		return -ENOMEM;
 	}
 
@@ -1850,17 +1847,19 @@ static int attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	priv(dev)->hw_revision =
 	    hw_revision(dev, readw(priv(dev)->main_iobase + HW_STATUS_REG));
-	printk(" stc hardware revision %i\n", priv(dev)->hw_revision);
+	dev_dbg(dev->hw_dev, "stc hardware revision %i\n",
+		priv(dev)->hw_revision);
 	init_plx9080(dev);
 	init_stc_registers(dev);
 	/*  get irq */
 	if (request_irq(pcidev->irq, handle_interrupt, IRQF_SHARED,
 			"cb_pcidas64", dev)) {
-		printk(" unable to allocate irq %u\n", pcidev->irq);
+		dev_dbg(dev->hw_dev, "unable to allocate irq %u\n",
+			pcidev->irq);
 		return -EINVAL;
 	}
 	dev->irq = pcidev->irq;
-	printk(" irq %u\n", dev->irq);
+	dev_dbg(dev->hw_dev, "irq %u\n", dev->irq);
 
 	retval = setup_subdevices(dev);
 	if (retval < 0)
@@ -1882,8 +1881,6 @@ static int detach(struct comedi_device *dev)
 {
 	unsigned int i;
 
-	printk("comedi%d: cb_pcidas: remove\n", dev->minor);
-
 	if (dev->irq)
 		free_irq(dev->irq, dev);
 	if (priv(dev)) {
@@ -2093,7 +2090,8 @@ static int ai_config_calibration_source(struct comedi_device *dev,
 	else
 		num_calibration_sources = 8;
 	if (source >= num_calibration_sources) {
-		printk("invalid calibration source: %i\n", source);
+		dev_dbg(dev->hw_dev, "invalid calibration source: %i\n",
+			source);
 		return -EINVAL;
 	}
 
@@ -2924,7 +2922,7 @@ static void pio_drain_ai_fifo_16(struct comedi_device *dev)
 		}
 
 		if (num_samples < 0) {
-			printk(" cb_pcidas64: bug! num_samples < 0\n");
+			dev_err(dev->hw_dev, "cb_pcidas64: bug! num_samples < 0\n");
 			break;
 		}
 
diff --git a/drivers/staging/comedi/drivers/cb_pcidda.c b/drivers/staging/comedi/drivers/cb_pcidda.c
index 49102b3a6c4a..abba220a767f 100644
--- a/drivers/staging/comedi/drivers/cb_pcidda.c
+++ b/drivers/staging/comedi/drivers/cb_pcidda.c
@@ -282,7 +282,6 @@ static int cb_pcidda_attach(struct comedi_device *dev,
 	struct pci_dev *pcidev = NULL;
 	int index;
 
-	printk("comedi%d: cb_pcidda: ", dev->minor);
 
 /*
  * Allocate the private structure area.
@@ -293,7 +292,6 @@ static int cb_pcidda_attach(struct comedi_device *dev,
 /*
  * Probe the device to determine what device in the series it is.
  */
-	printk("\n");
 
 	for_each_pci_dev(pcidev) {
 		if (pcidev->vendor == PCI_VENDOR_ID_CB) {
@@ -312,22 +310,21 @@ static int cb_pcidda_attach(struct comedi_device *dev,
 		}
 	}
 	if (!pcidev) {
-		printk
-		    ("Not a ComputerBoards/MeasurementComputing card on requested position\n");
+		dev_err(dev->hw_dev, "Not a ComputerBoards/MeasurementComputing card on requested position\n");
 		return -EIO;
 	}
 found:
 	devpriv->pci_dev = pcidev;
 	dev->board_ptr = cb_pcidda_boards + index;
 	/*  "thisboard" macro can be used from here. */
-	printk("Found %s at requested position\n", thisboard->name);
+	dev_dbg(dev->hw_dev, "Found %s at requested position\n",
+		thisboard->name);
 
 	/*
 	 * Enable PCI device and request regions.
 	 */
 	if (comedi_pci_enable(pcidev, thisboard->name)) {
-		printk
-		    ("cb_pcidda: failed to enable PCI device and request regions\n");
+		dev_err(dev->hw_dev, "cb_pcidda: failed to enable PCI device and request regions\n");
 		return -EIO;
 	}
 
@@ -377,12 +374,11 @@ found:
 	s = dev->subdevices + 2;
 	subdev_8255_init(dev, s, NULL, devpriv->digitalio + PORT2A);
 
-	printk(" eeprom:");
+	dev_dbg(dev->hw_dev, "eeprom:\n");
 	for (index = 0; index < EEPROM_SIZE; index++) {
 		devpriv->eeprom_data[index] = cb_pcidda_read_eeprom(dev, index);
-		printk(" %i:0x%x ", index, devpriv->eeprom_data[index]);
+		dev_dbg(dev->hw_dev, "%i:0x%x\n", index, devpriv->eeprom_data[index]);
 	}
-	printk("\n");
 
 	/*  set calibrations dacs */
 	for (index = 0; index < thisboard->ao_chans; index++)
@@ -417,8 +413,6 @@ static int cb_pcidda_detach(struct comedi_device *dev)
 		subdev_8255_cleanup(dev, dev->subdevices + 2);
 	}
 
-	printk("comedi%d: cb_pcidda: remove\n", dev->minor);
-
 	return 0;
 }
 
diff --git a/drivers/staging/comedi/drivers/cb_pcidio.c b/drivers/staging/comedi/drivers/cb_pcidio.c
index 79477a595ef9..8f3215239a15 100644
--- a/drivers/staging/comedi/drivers/cb_pcidio.c
+++ b/drivers/staging/comedi/drivers/cb_pcidio.c
@@ -184,8 +184,6 @@ static int pcidio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	int index;
 	int i;
 
-	printk("comedi%d: cb_pcidio: \n", dev->minor);
-
 /*
  * Allocate the private structure area.  alloc_private() is a
  * convenient macro defined in comedidev.h.
@@ -223,8 +221,7 @@ static int pcidio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		}
 	}
 
-	printk("No supported ComputerBoards/MeasurementComputing card found on "
-	       "requested position\n");
+	dev_err(dev->hw_dev, "No supported ComputerBoards/MeasurementComputing card found on requested position\n");
 	return -EIO;
 
 found:
@@ -236,14 +233,12 @@ found:
 	dev->board_name = thisboard->name;
 
 	devpriv->pci_dev = pcidev;
-	printk("Found %s on bus %i, slot %i\n", thisboard->name,
-	       devpriv->pci_dev->bus->number,
-	       PCI_SLOT(devpriv->pci_dev->devfn));
-	if (comedi_pci_enable(pcidev, thisboard->name)) {
-		printk
-		    ("cb_pcidio: failed to enable PCI device and request regions\n");
+	dev_dbg(dev->hw_dev, "Found %s on bus %i, slot %i\n", thisboard->name,
+		devpriv->pci_dev->bus->number,
+		PCI_SLOT(devpriv->pci_dev->devfn));
+	if (comedi_pci_enable(pcidev, thisboard->name))
 		return -EIO;
-	}
+
 	devpriv->dio_reg_base
 	    =
 	    pci_resource_start(devpriv->pci_dev,
@@ -259,11 +254,10 @@ found:
 	for (i = 0; i < thisboard->n_8255; i++) {
 		subdev_8255_init(dev, dev->subdevices + i,
 				 NULL, devpriv->dio_reg_base + i * 4);
-		printk(" subdev %d: base = 0x%lx\n", i,
-		       devpriv->dio_reg_base + i * 4);
+		dev_dbg(dev->hw_dev, "subdev %d: base = 0x%lx\n", i,
+			devpriv->dio_reg_base + i * 4);
 	}
 
-	printk("attached\n");
 	return 1;
 }
 
@@ -277,7 +271,6 @@ found:
  */
 static int pcidio_detach(struct comedi_device *dev)
 {
-	printk("comedi%d: cb_pcidio: remove\n", dev->minor);
 	if (devpriv) {
 		if (devpriv->pci_dev) {
 			if (devpriv->dio_reg_base)
diff --git a/drivers/staging/comedi/drivers/cb_pcimdas.c b/drivers/staging/comedi/drivers/cb_pcimdas.c
index b1b832b65bc1..8ba694263bd3 100644
--- a/drivers/staging/comedi/drivers/cb_pcimdas.c
+++ b/drivers/staging/comedi/drivers/cb_pcimdas.c
@@ -212,8 +212,6 @@ static int cb_pcimdas_attach(struct comedi_device *dev,
 	int index;
 	/* int i; */
 
-	printk("comedi%d: cb_pcimdas: ", dev->minor);
-
 /*
  * Allocate the private structure area.
  */
@@ -223,7 +221,6 @@ static int cb_pcimdas_attach(struct comedi_device *dev,
 /*
  * Probe the device to determine what device in the series it is.
  */
-	printk("\n");
 
 	for_each_pci_dev(pcidev) {
 		/*  is it not a computer boards card? */
@@ -248,26 +245,26 @@ static int cb_pcimdas_attach(struct comedi_device *dev,
 		}
 	}
 
-	printk("No supported ComputerBoards/MeasurementComputing card found on "
-	       "requested position\n");
+	dev_err(dev->hw_dev, "No supported ComputerBoards/MeasurementComputing card found on requested position\n");
 	return -EIO;
 
 found:
 
-	printk("Found %s on bus %i, slot %i\n", cb_pcimdas_boards[index].name,
-	       pcidev->bus->number, PCI_SLOT(pcidev->devfn));
+	dev_dbg(dev->hw_dev, "Found %s on bus %i, slot %i\n",
+		cb_pcimdas_boards[index].name, pcidev->bus->number,
+		PCI_SLOT(pcidev->devfn));
 
 	/*  Warn about non-tested features */
 	switch (thisboard->device_id) {
 	case 0x56:
 		break;
 	default:
-		printk("THIS CARD IS UNSUPPORTED.\n"
-		       "PLEASE REPORT USAGE TO <mocelet@sucs.org>\n");
+		dev_dbg(dev->hw_dev, "THIS CARD IS UNSUPPORTED.\n"
+			"PLEASE REPORT USAGE TO <mocelet@sucs.org>\n");
 	}
 
 	if (comedi_pci_enable(pcidev, "cb_pcimdas")) {
-		printk(" Failed to enable PCI device and request regions\n");
+		dev_err(dev->hw_dev, "Failed to enable PCI device and request regions\n");
 		return -EIO;
 	}
 
@@ -277,13 +274,11 @@ found:
 	devpriv->BADR3 = pci_resource_start(devpriv->pci_dev, 3);
 	devpriv->BADR4 = pci_resource_start(devpriv->pci_dev, 4);
 
-#ifdef CBPCIMDAS_DEBUG
-	printk("devpriv->BADR0 = 0x%lx\n", devpriv->BADR0);
-	printk("devpriv->BADR1 = 0x%lx\n", devpriv->BADR1);
-	printk("devpriv->BADR2 = 0x%lx\n", devpriv->BADR2);
-	printk("devpriv->BADR3 = 0x%lx\n", devpriv->BADR3);
-	printk("devpriv->BADR4 = 0x%lx\n", devpriv->BADR4);
-#endif
+	dev_dbg(dev->hw_dev, "devpriv->BADR0 = 0x%lx\n", devpriv->BADR0);
+	dev_dbg(dev->hw_dev, "devpriv->BADR1 = 0x%lx\n", devpriv->BADR1);
+	dev_dbg(dev->hw_dev, "devpriv->BADR2 = 0x%lx\n", devpriv->BADR2);
+	dev_dbg(dev->hw_dev, "devpriv->BADR3 = 0x%lx\n", devpriv->BADR3);
+	dev_dbg(dev->hw_dev, "devpriv->BADR4 = 0x%lx\n", devpriv->BADR4);
 
 /* Dont support IRQ yet */
 /*  get irq */
@@ -333,8 +328,6 @@ found:
 	else
 		s->type = COMEDI_SUBD_UNUSED;
 
-	printk("attached\n");
-
 	return 1;
 }
 
@@ -348,16 +341,19 @@ found:
  */
 static int cb_pcimdas_detach(struct comedi_device *dev)
 {
-#ifdef CBPCIMDAS_DEBUG
 	if (devpriv) {
-		printk("devpriv->BADR0 = 0x%lx\n", devpriv->BADR0);
-		printk("devpriv->BADR1 = 0x%lx\n", devpriv->BADR1);
-		printk("devpriv->BADR2 = 0x%lx\n", devpriv->BADR2);
-		printk("devpriv->BADR3 = 0x%lx\n", devpriv->BADR3);
-		printk("devpriv->BADR4 = 0x%lx\n", devpriv->BADR4);
+		dev_dbg(dev->hw_dev, "devpriv->BADR0 = 0x%lx\n",
+			devpriv->BADR0);
+		dev_dbg(dev->hw_dev, "devpriv->BADR1 = 0x%lx\n",
+			devpriv->BADR1);
+		dev_dbg(dev->hw_dev, "devpriv->BADR2 = 0x%lx\n",
+			devpriv->BADR2);
+		dev_dbg(dev->hw_dev, "devpriv->BADR3 = 0x%lx\n",
+			devpriv->BADR3);
+		dev_dbg(dev->hw_dev, "devpriv->BADR4 = 0x%lx\n",
+			devpriv->BADR4);
 	}
-#endif
-	printk("comedi%d: cb_pcimdas: remove\n", dev->minor);
+
 	if (dev->irq)
 		free_irq(dev->irq, dev);
 	if (devpriv) {
diff --git a/drivers/staging/comedi/drivers/cb_pcimdda.c b/drivers/staging/comedi/drivers/cb_pcimdda.c
index 8c981a89ab63..40bddfa22220 100644
--- a/drivers/staging/comedi/drivers/cb_pcimdda.c
+++ b/drivers/staging/comedi/drivers/cb_pcimdda.c
@@ -105,7 +105,8 @@ struct board_struct {
 	int ao_bits;
 	int dio_chans;
 	int dio_method;
-	int dio_offset;		/* how many bytes into the BADR are the DIO ports */
+	/* how many bytes into the BADR are the DIO ports */
+	int dio_offset;
 	int regs_badrindex;	/* IO Region for the control, analog output,
 				   and DIO registers */
 	int reg_sz;		/* number of bytes of registers in io region */
@@ -144,17 +145,18 @@ static const struct board_struct boards[] = {
 /* Please add your PCI vendor ID to comedidev.h, and it will be forwarded
  * upstream. */
 static DEFINE_PCI_DEVICE_TABLE(pci_table) = {
-	{
-	PCI_VENDOR_ID_COMPUTERBOARDS, PCI_ID_PCIM_DDA06_16, PCI_ANY_ID,
-		    PCI_ANY_ID, 0, 0, 0}, {
-	0}
+	{ PCI_DEVICE(PCI_VENDOR_ID_COMPUTERBOARDS, PCI_ID_PCIM_DDA06_16) },
+	{0}
 };
 
 MODULE_DEVICE_TABLE(pci, pci_table);
 
-/* this structure is for data unique to this hardware driver.  If
-   several hardware drivers keep similar information in this structure,
-   feel free to suggest moving the variable to the struct comedi_device struct.  */
+/*
+ * this structure is for data unique to this hardware driver.  If
+ * several hardware drivers keep similar information in this structure,
+ * feel free to suggest moving the variable to the struct comedi_device
+ * struct.
+ */
 struct board_private_struct {
 	unsigned long registers;	/* set by probe */
 	unsigned long dio_registers;
@@ -335,7 +337,10 @@ static int attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (thisboard->dio_chans) {
 		switch (thisboard->dio_method) {
 		case DIO_8255:
-			/* this is a straight 8255, so register us with the 8255 driver */
+			/*
+			 * this is a straight 8255, so register us with
+			 * the 8255 driver
+			 */
 			subdev_8255_init(dev, s, NULL, devpriv->dio_registers);
 			devpriv->attached_to_8255 = 1;
 			break;
@@ -436,8 +441,11 @@ static int ao_rinsn(struct comedi_device *dev, struct comedi_subdevice *s,
 
 	for (i = 0; i < insn->n; i++) {
 		inw(devpriv->registers + chan * 2);
-		/* should I set data[i] to the result of the actual read on the register
-		   or the cached unsigned int in devpriv->ao_readback[]? */
+		/*
+		 * should I set data[i] to the result of the actual read
+		 * on the register or the cached unsigned int in
+		 * devpriv->ao_readback[]?
+		 */
 		data[i] = devpriv->ao_readback[chan];
 	}
 
diff --git a/drivers/staging/comedi/drivers/contec_pci_dio.c b/drivers/staging/comedi/drivers/contec_pci_dio.c
index 871f109bcfa3..e3659bd6e85e 100644
--- a/drivers/staging/comedi/drivers/contec_pci_dio.c
+++ b/drivers/staging/comedi/drivers/contec_pci_dio.c
@@ -57,10 +57,9 @@ static const struct contec_board contec_boards[] = {
 
 #define PCI_DEVICE_ID_PIO1616L 0x8172
 static DEFINE_PCI_DEVICE_TABLE(contec_pci_table) = {
-	{
-	PCI_VENDOR_ID_CONTEC, PCI_DEVICE_ID_PIO1616L, PCI_ANY_ID,
-		    PCI_ANY_ID, 0, 0, PIO1616L}, {
-	0}
+	{ PCI_DEVICE(PCI_VENDOR_ID_CONTEC, PCI_DEVICE_ID_PIO1616L),
+		.driver_data = PIO1616L },
+	{0}
 };
 
 MODULE_DEVICE_TABLE(pci, contec_pci_table);
@@ -197,8 +196,8 @@ static int contec_do_insn_bits(struct comedi_device *dev,
 			       struct comedi_insn *insn, unsigned int *data)
 {
 
-	printk("contec_do_insn_bits called\n");
-	printk(" data: %d %d\n", data[0], data[1]);
+	dev_dbg(dev->hw_dev, "contec_do_insn_bits called\n");
+	dev_dbg(dev->hw_dev, "data: %d %d\n", data[0], data[1]);
 
 	if (insn->n != 2)
 		return -EINVAL;
@@ -206,8 +205,8 @@ static int contec_do_insn_bits(struct comedi_device *dev,
 	if (data[0]) {
 		s->state &= ~data[0];
 		s->state |= data[0] & data[1];
-		printk("  out: %d on %lx\n", s->state,
-		       dev->iobase + thisboard->out_offs);
+		dev_dbg(dev->hw_dev, "out: %d on %lx\n", s->state,
+			dev->iobase + thisboard->out_offs);
 		outw(s->state, dev->iobase + thisboard->out_offs);
 	}
 	return 2;
@@ -218,8 +217,8 @@ static int contec_di_insn_bits(struct comedi_device *dev,
 			       struct comedi_insn *insn, unsigned int *data)
 {
 
-	printk("contec_di_insn_bits called\n");
-	printk(" data: %d %d\n", data[0], data[1]);
+	dev_dbg(dev->hw_dev, "contec_di_insn_bits called\n");
+	dev_dbg(dev->hw_dev, "data: %d %d\n", data[0], data[1]);
 
 	if (insn->n != 2)
 		return -EINVAL;
diff --git a/drivers/staging/comedi/drivers/daqboard2000.c b/drivers/staging/comedi/drivers/daqboard2000.c
index 82be77daa7d7..e61c6a8f2857 100644
--- a/drivers/staging/comedi/drivers/daqboard2000.c
+++ b/drivers/staging/comedi/drivers/daqboard2000.c
@@ -325,9 +325,8 @@ static const struct daq200_boardtype boardtypes[] = {
 #define this_board ((const struct daq200_boardtype *)dev->board_ptr)
 
 static DEFINE_PCI_DEVICE_TABLE(daqboard2000_pci_table) = {
-	{
-	0x1616, 0x0409, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, {
-	0}
+	{ PCI_DEVICE(0x1616, 0x0409) },
+	{0}
 };
 
 MODULE_DEVICE_TABLE(pci, daqboard2000_pci_table);
@@ -430,16 +429,14 @@ static int daqboard2000_ai_insn_read(struct comedi_device *dev,
 		/* Enable reading from the scanlist FIFO */
 		fpga->acqControl = DAQBOARD2000_SeqStartScanList;
 		for (timeout = 0; timeout < 20; timeout++) {
-			if (fpga->acqControl & DAQBOARD2000_AcqConfigPipeFull) {
+			if (fpga->acqControl & DAQBOARD2000_AcqConfigPipeFull)
 				break;
-			}
 			/* udelay(2); */
 		}
 		fpga->acqControl = DAQBOARD2000_AdcPacerEnable;
 		for (timeout = 0; timeout < 20; timeout++) {
-			if (fpga->acqControl & DAQBOARD2000_AcqLogicScanning) {
+			if (fpga->acqControl & DAQBOARD2000_AcqLogicScanning)
 				break;
-			}
 			/* udelay(2); */
 		}
 		for (timeout = 0; timeout < 20; timeout++) {
@@ -465,9 +462,8 @@ static int daqboard2000_ao_insn_read(struct comedi_device *dev,
 	int i;
 	int chan = CR_CHAN(insn->chanspec);
 
-	for (i = 0; i < insn->n; i++) {
+	for (i = 0; i < insn->n; i++)
 		data[i] = devpriv->ao_readback[chan];
-	}
 
 	return i;
 }
@@ -490,9 +486,8 @@ static int daqboard2000_ao_insn_write(struct comedi_device *dev,
 		/* fpga->dacControl = (chan + 2) * 0x0010 | 0x0001; udelay(1000); */
 		fpga->dacSetting[chan] = data[i];
 		for (timeout = 0; timeout < 20; timeout++) {
-			if ((fpga->dacControl & ((chan + 1) * 0x0010)) == 0) {
+			if ((fpga->dacControl & ((chan + 1) * 0x0010)) == 0)
 				break;
-			}
 			/* udelay(2); */
 		}
 		devpriv->ao_readback[chan] = data[i];
@@ -507,7 +502,7 @@ static int daqboard2000_ao_insn_write(struct comedi_device *dev,
 
 static void daqboard2000_resetLocalBus(struct comedi_device *dev)
 {
-	printk("daqboard2000_resetLocalBus\n");
+	dev_dbg(dev->hw_dev, "daqboard2000_resetLocalBus\n");
 	writel(DAQBOARD2000_SECRLocalBusHi, devpriv->plx + 0x6c);
 	udelay(10000);
 	writel(DAQBOARD2000_SECRLocalBusLo, devpriv->plx + 0x6c);
@@ -516,7 +511,7 @@ static void daqboard2000_resetLocalBus(struct comedi_device *dev)
 
 static void daqboard2000_reloadPLX(struct comedi_device *dev)
 {
-	printk("daqboard2000_reloadPLX\n");
+	dev_dbg(dev->hw_dev, "daqboard2000_reloadPLX\n");
 	writel(DAQBOARD2000_SECRReloadLo, devpriv->plx + 0x6c);
 	udelay(10000);
 	writel(DAQBOARD2000_SECRReloadHi, devpriv->plx + 0x6c);
@@ -527,7 +522,7 @@ static void daqboard2000_reloadPLX(struct comedi_device *dev)
 
 static void daqboard2000_pulseProgPin(struct comedi_device *dev)
 {
-	printk("daqboard2000_pulseProgPin 1\n");
+	dev_dbg(dev->hw_dev, "daqboard2000_pulseProgPin 1\n");
 	writel(DAQBOARD2000_SECRProgPinHi, devpriv->plx + 0x6c);
 	udelay(10000);
 	writel(DAQBOARD2000_SECRProgPinLo, devpriv->plx + 0x6c);
@@ -579,14 +574,14 @@ static int initialize_daqboard2000(struct comedi_device *dev,
 	secr = readl(devpriv->plx + 0x6c);
 	if (!(secr & DAQBOARD2000_EEPROM_PRESENT)) {
 #ifdef DEBUG_EEPROM
-		printk("no serial eeprom\n");
+		dev_dbg(dev->hw_dev, "no serial eeprom\n");
 #endif
 		return -EIO;
 	}
 
 	for (retry = 0; retry < 3; retry++) {
 #ifdef DEBUG_EEPROM
-		printk("Programming EEPROM try %x\n", retry);
+		dev_dbg(dev->hw_dev, "Programming EEPROM try %x\n", retry);
 #endif
 
 		daqboard2000_resetLocalBus(dev);
@@ -597,7 +592,8 @@ static int initialize_daqboard2000(struct comedi_device *dev,
 				if (cpld_array[i] == 0xff
 				    && cpld_array[i + 1] == 0x20) {
 #ifdef DEBUG_EEPROM
-					printk("Preamble found at %d\n", i);
+					dev_dbg(dev->hw_dev, "Preamble found at %d\n",
+						i);
 #endif
 					break;
 				}
@@ -605,13 +601,12 @@ static int initialize_daqboard2000(struct comedi_device *dev,
 			for (; i < len; i += 2) {
 				int data =
 				    (cpld_array[i] << 8) + cpld_array[i + 1];
-				if (!daqboard2000_writeCPLD(dev, data)) {
+				if (!daqboard2000_writeCPLD(dev, data))
 					break;
-				}
 			}
 			if (i >= len) {
 #ifdef DEBUG_EEPROM
-				printk("Programmed\n");
+				dev_dbg(dev->hw_dev, "Programmed\n");
 #endif
 				daqboard2000_resetLocalBus(dev);
 				daqboard2000_reloadPLX(dev);
@@ -658,9 +653,8 @@ static void daqboard2000_activateReferenceDacs(struct comedi_device *dev)
 	/*  Set the + reference dac value in the FPGA */
 	fpga->refDacs = 0x80 | DAQBOARD2000_PosRefDacSelect;
 	for (timeout = 0; timeout < 20; timeout++) {
-		if ((fpga->dacControl & DAQBOARD2000_RefBusy) == 0) {
+		if ((fpga->dacControl & DAQBOARD2000_RefBusy) == 0)
 			break;
-		}
 		udelay(2);
 	}
 /*  printk("DAQBOARD2000_PosRefDacSelect %d\n", timeout);*/
@@ -668,9 +662,8 @@ static void daqboard2000_activateReferenceDacs(struct comedi_device *dev)
 	/*  Set the - reference dac value in the FPGA */
 	fpga->refDacs = 0x80 | DAQBOARD2000_NegRefDacSelect;
 	for (timeout = 0; timeout < 20; timeout++) {
-		if ((fpga->dacControl & DAQBOARD2000_RefBusy) == 0) {
+		if ((fpga->dacControl & DAQBOARD2000_RefBusy) == 0)
 			break;
-		}
 		udelay(2);
 	}
 /*  printk("DAQBOARD2000_NegRefDacSelect %d\n", timeout);*/
@@ -737,15 +730,13 @@ static int daqboard2000_attach(struct comedi_device *dev,
 	unsigned int aux_len;
 	int bus, slot;
 
-	printk("comedi%d: daqboard2000:", dev->minor);
-
 	bus = it->options[0];
 	slot = it->options[1];
 
 	result = alloc_private(dev, sizeof(struct daqboard2000_private));
-	if (result < 0) {
+	if (result < 0)
 		return -ENOMEM;
-	}
+
 	for (card = pci_get_device(0x1616, 0x0409, NULL);
 	     card != NULL; card = pci_get_device(0x1616, 0x0409, card)) {
 		if (bus || slot) {
@@ -759,10 +750,10 @@ static int daqboard2000_attach(struct comedi_device *dev,
 	}
 	if (!card) {
 		if (bus || slot)
-			printk(" no daqboard2000 found at bus/slot: %d/%d\n",
-			       bus, slot);
+			dev_err(dev->hw_dev, "no daqboard2000 found at bus/slot: %d/%d\n",
+				bus, slot);
 		else
-			printk(" no daqboard2000 found\n");
+			dev_err(dev->hw_dev, "no daqboard2000 found\n");
 		return -EIO;
 	} else {
 		u32 id;
@@ -772,7 +763,8 @@ static int daqboard2000_attach(struct comedi_device *dev,
 		      subsystem_device << 16) | card->subsystem_vendor;
 		for (i = 0; i < n_boardtypes; i++) {
 			if (boardtypes[i].id == id) {
-				printk(" %s", boardtypes[i].name);
+				dev_dbg(dev->hw_dev, "%s\n",
+					boardtypes[i].name);
 				dev->board_ptr = boardtypes + i;
 			}
 		}
@@ -786,7 +778,7 @@ static int daqboard2000_attach(struct comedi_device *dev,
 
 	result = comedi_pci_enable(card, "daqboard2000");
 	if (result < 0) {
-		printk(" failed to enable PCI device and request regions\n");
+		dev_err(dev->hw_dev, "failed to enable PCI device and request regions\n");
 		return -EIO;
 	}
 	devpriv->got_regions = 1;
@@ -794,9 +786,8 @@ static int daqboard2000_attach(struct comedi_device *dev,
 	    ioremap(pci_resource_start(card, 0), DAQBOARD2000_PLX_SIZE);
 	devpriv->daq =
 	    ioremap(pci_resource_start(card, 2), DAQBOARD2000_DAQ_SIZE);
-	if (!devpriv->plx || !devpriv->daq) {
+	if (!devpriv->plx || !devpriv->daq)
 		return -ENOMEM;
-	}
 
 	result = alloc_subdevices(dev, 3);
 	if (result < 0)
@@ -817,7 +808,7 @@ static int daqboard2000_attach(struct comedi_device *dev,
 	if (aux_data && aux_len) {
 		result = initialize_daqboard2000(dev, aux_data, aux_len);
 	} else {
-		printk("no FPGA initialization code, aborting\n");
+		dev_dbg(dev->hw_dev, "no FPGA initialization code, aborting\n");
 		result = -EIO;
 	}
 	if (result < 0)
@@ -857,30 +848,26 @@ static int daqboard2000_attach(struct comedi_device *dev,
 	result = subdev_8255_init(dev, s, daqboard2000_8255_cb,
 				  (unsigned long)(dev->iobase + 0x40));
 
-	printk("\n");
 out:
 	return result;
 }
 
 static int daqboard2000_detach(struct comedi_device *dev)
 {
-	printk("comedi%d: daqboard2000: remove\n", dev->minor);
-
 	if (dev->subdevices)
 		subdev_8255_cleanup(dev, dev->subdevices + 2);
 
-	if (dev->irq) {
+	if (dev->irq)
 		free_irq(dev->irq, dev);
-	}
+
 	if (devpriv) {
 		if (devpriv->daq)
 			iounmap(devpriv->daq);
 		if (devpriv->plx)
 			iounmap(devpriv->plx);
 		if (devpriv->pci_dev) {
-			if (devpriv->got_regions) {
+			if (devpriv->got_regions)
 				comedi_pci_disable(devpriv->pci_dev);
-			}
 			pci_dev_put(devpriv->pci_dev);
 		}
 	}
diff --git a/drivers/staging/comedi/drivers/das08.c b/drivers/staging/comedi/drivers/das08.c
index 3141dc80fe74..c2dd0ed36a73 100644
--- a/drivers/staging/comedi/drivers/das08.c
+++ b/drivers/staging/comedi/drivers/das08.c
@@ -506,10 +506,8 @@ struct das08_board_struct das08_cs_boards[NUM_DAS08_CS_BOARDS] = {
 
 #ifdef CONFIG_COMEDI_PCI
 static DEFINE_PCI_DEVICE_TABLE(das08_pci_table) = {
-	{
-	PCI_VENDOR_ID_COMPUTERBOARDS, PCI_DEVICE_ID_PCIDAS08,
-		    PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, {
-	0}
+	{ PCI_DEVICE(PCI_VENDOR_ID_COMPUTERBOARDS, PCI_DEVICE_ID_PCIDAS08) },
+	{0}
 };
 
 MODULE_DEVICE_TABLE(pci, das08_pci_table);
diff --git a/drivers/staging/comedi/drivers/das08_cs.c b/drivers/staging/comedi/drivers/das08_cs.c
index 6d91d3028178..4ad398aad72c 100644
--- a/drivers/staging/comedi/drivers/das08_cs.c
+++ b/drivers/staging/comedi/drivers/das08_cs.c
@@ -79,22 +79,20 @@ static int das08_cs_attach(struct comedi_device *dev,
 	if (ret < 0)
 		return ret;
 
-	printk("comedi%d: das08_cs: ", dev->minor);
+	dev_info(dev->hw_dev, "comedi%d: das08_cs:\n", dev->minor);
 	/*  deal with a pci board */
 
 	if (thisboard->bustype == pcmcia) {
 		if (link == NULL) {
-			printk(" no pcmcia cards found\n");
+			dev_err(dev->hw_dev, "no pcmcia cards found\n");
 			return -EIO;
 		}
 		iobase = link->resource[0]->start;
 	} else {
-		printk(" bug! board does not have PCMCIA bustype\n");
+		dev_err(dev->hw_dev, "bug! board does not have PCMCIA bustype\n");
 		return -EINVAL;
 	}
 
-	printk("\n");
-
 	return das08_common_attach(dev, iobase);
 }
 
diff --git a/drivers/staging/comedi/drivers/das16m1.c b/drivers/staging/comedi/drivers/das16m1.c
index a5ce3b2abe4a..5376e718e3d7 100644
--- a/drivers/staging/comedi/drivers/das16m1.c
+++ b/drivers/staging/comedi/drivers/das16m1.c
@@ -384,20 +384,20 @@ static int das16m1_cmd_exec(struct comedi_device *dev,
 	byte = 0;
 	/* if we are using external start trigger (also board dislikes having
 	 * both start and conversion triggers external simultaneously) */
-	if (cmd->start_src == TRIG_EXT && cmd->convert_src != TRIG_EXT) {
+	if (cmd->start_src == TRIG_EXT && cmd->convert_src != TRIG_EXT)
 		byte |= EXT_TRIG_BIT;
-	}
+
 	outb(byte, dev->iobase + DAS16M1_CS);
 	/* clear interrupt bit */
 	outb(0, dev->iobase + DAS16M1_CLEAR_INTR);
 
 	/* enable interrupts and internal pacer */
 	devpriv->control_state &= ~PACER_MASK;
-	if (cmd->convert_src == TRIG_TIMER) {
+	if (cmd->convert_src == TRIG_TIMER)
 		devpriv->control_state |= INT_PACER;
-	} else {
+	else
 		devpriv->control_state |= EXT_PACER;
-	}
+
 	devpriv->control_state |= INTE;
 	outb(devpriv->control_state, dev->iobase + DAS16M1_INTR_CONTROL);
 
@@ -531,9 +531,8 @@ static void munge_sample_array(short *array, unsigned int num_elements)
 {
 	unsigned int i;
 
-	for (i = 0; i < num_elements; i++) {
+	for (i = 0; i < num_elements; i++)
 		array[i] = munge_sample(array[i]);
-	}
 }
 
 static void das16m1_handler(struct comedi_device *dev, unsigned int status)
@@ -668,25 +667,20 @@ static int das16m1_attach(struct comedi_device *dev,
 
 	iobase = it->options[0];
 
-	printk("comedi%d: das16m1:", dev->minor);
-
 	ret = alloc_private(dev, sizeof(struct das16m1_private_struct));
 	if (ret < 0)
 		return ret;
 
 	dev->board_name = thisboard->name;
 
-	printk(" io 0x%lx-0x%lx 0x%lx-0x%lx",
-	       iobase, iobase + DAS16M1_SIZE,
-	       iobase + DAS16M1_82C55, iobase + DAS16M1_82C55 + DAS16M1_SIZE2);
 	if (!request_region(iobase, DAS16M1_SIZE, driver_das16m1.driver_name)) {
-		printk(" I/O port conflict\n");
+		comedi_error(dev, "I/O port conflict\n");
 		return -EIO;
 	}
 	if (!request_region(iobase + DAS16M1_82C55, DAS16M1_SIZE2,
 			    driver_das16m1.driver_name)) {
 		release_region(iobase, DAS16M1_SIZE);
-		printk(" I/O port conflict\n");
+		comedi_error(dev, "I/O port conflict\n");
 		return -EIO;
 	}
 	dev->iobase = iobase;
@@ -697,17 +691,17 @@ static int das16m1_attach(struct comedi_device *dev,
 	if (das16m1_irq_bits(irq) >= 0) {
 		ret = request_irq(irq, das16m1_interrupt, 0,
 				  driver_das16m1.driver_name, dev);
-		if (ret < 0) {
-			printk(", irq unavailable\n");
+		if (ret < 0)
 			return ret;
-		}
 		dev->irq = irq;
-		printk(", irq %u\n", irq);
+		printk
+		    ("irq %u\n", irq);
 	} else if (irq == 0) {
-		printk(", no irq\n");
+		printk
+		    (", no irq\n");
 	} else {
-		printk(", invalid irq\n"
-		       " valid irqs are 2, 3, 5, 7, 10, 11, 12, or 15\n");
+		comedi_error(dev, "invalid irq\n"
+			     " valid irqs are 2, 3, 5, 7, 10, 11, 12, or 15\n");
 		return -EINVAL;
 	}
 
@@ -771,7 +765,6 @@ static int das16m1_attach(struct comedi_device *dev,
 
 static int das16m1_detach(struct comedi_device *dev)
 {
-	printk("comedi%d: das16m1: remove\n", dev->minor);
 
 /* das16m1_reset(dev); */
 
diff --git a/drivers/staging/comedi/drivers/das1800.c b/drivers/staging/comedi/drivers/das1800.c
index a6df30b7fd7c..99ada5a53b9e 100644
--- a/drivers/staging/comedi/drivers/das1800.c
+++ b/drivers/staging/comedi/drivers/das1800.c
@@ -573,22 +573,23 @@ static int das1800_init_dma(struct comedi_device *dev, unsigned int dma0,
 			devpriv->dma_bits |= DMA_CH7_CH5;
 			break;
 		default:
-			printk(" only supports dma channels 5 through 7\n"
-			       " Dual dma only allows the following combinations:\n"
-			       " dma 5,6 / 6,7 / or 7,5\n");
+			dev_err(dev->hw_dev, " only supports dma channels 5 through 7\n"
+				" Dual dma only allows the following combinations:\n"
+				" dma 5,6 / 6,7 / or 7,5\n");
 			return -EINVAL;
 			break;
 		}
 		if (request_dma(dma0, driver_das1800.driver_name)) {
-			printk(" failed to allocate dma channel %i\n", dma0);
+			dev_err(dev->hw_dev, "failed to allocate dma channel %i\n",
+				dma0);
 			return -EINVAL;
 		}
 		devpriv->dma0 = dma0;
 		devpriv->dma_current = dma0;
 		if (dma1) {
 			if (request_dma(dma1, driver_das1800.driver_name)) {
-				printk(" failed to allocate dma channel %i\n",
-				       dma1);
+				dev_err(dev->hw_dev, "failed to allocate dma channel %i\n",
+					dma1);
 				return -EINVAL;
 			}
 			devpriv->dma1 = dma1;
@@ -631,20 +632,20 @@ static int das1800_attach(struct comedi_device *dev,
 	if (alloc_private(dev, sizeof(struct das1800_private)) < 0)
 		return -ENOMEM;
 
-	printk("comedi%d: %s: io 0x%lx", dev->minor, driver_das1800.driver_name,
-	       iobase);
+	printk(KERN_DEBUG "comedi%d: %s: io 0x%lx", dev->minor,
+	       driver_das1800.driver_name, iobase);
 	if (irq) {
-		printk(", irq %u", irq);
+		printk(KERN_CONT ", irq %u", irq);
 		if (dma0) {
-			printk(", dma %u", dma0);
+			printk(KERN_CONT ", dma %u", dma0);
 			if (dma1)
-				printk(" and %u", dma1);
+				printk(KERN_CONT " and %u", dma1);
 		}
 	}
-	printk("\n");
+	printk(KERN_CONT "\n");
 
 	if (iobase == 0) {
-		printk(" io base address required\n");
+		dev_err(dev->hw_dev, "io base address required\n");
 		return -EINVAL;
 	}
 
@@ -659,7 +660,7 @@ static int das1800_attach(struct comedi_device *dev,
 
 	board = das1800_probe(dev);
 	if (board < 0) {
-		printk(" unable to determine board type\n");
+		dev_err(dev->hw_dev, "unable to determine board type\n");
 		return -ENODEV;
 	}
 
@@ -683,7 +684,8 @@ static int das1800_attach(struct comedi_device *dev,
 	if (irq) {
 		if (request_irq(irq, das1800_interrupt, 0,
 				driver_das1800.driver_name, dev)) {
-			printk(" unable to allocate irq %u\n", irq);
+			dev_dbg(dev->hw_dev, "unable to allocate irq %u\n",
+				irq);
 			return -EINVAL;
 		}
 	}
@@ -712,7 +714,7 @@ static int das1800_attach(struct comedi_device *dev,
 		devpriv->irq_dma_bits |= 0x38;
 		break;
 	default:
-		printk(" irq out of range\n");
+		dev_err(dev->hw_dev, "irq out of range\n");
 		return -EINVAL;
 		break;
 	}
@@ -813,8 +815,8 @@ static int das1800_detach(struct comedi_device *dev)
 		kfree(devpriv->ai_buf1);
 	}
 
-	printk("comedi%d: %s: remove\n", dev->minor,
-	       driver_das1800.driver_name);
+	dev_dbg(dev->hw_dev, "comedi%d: %s: remove\n", dev->minor,
+		driver_das1800.driver_name);
 
 	return 0;
 };
@@ -833,8 +835,8 @@ static int das1800_probe(struct comedi_device *dev)
 	case 0x3:
 		if (board == das1801st_da || board == das1802st_da ||
 		    board == das1701st_da || board == das1702st_da) {
-			printk(" Board model: %s\n",
-			       das1800_boards[board].name);
+			dev_dbg(dev->hw_dev, "Board model: %s\n",
+				das1800_boards[board].name);
 			return board;
 		}
 		printk
@@ -843,8 +845,8 @@ static int das1800_probe(struct comedi_device *dev)
 		break;
 	case 0x4:
 		if (board == das1802hr_da || board == das1702hr_da) {
-			printk(" Board model: %s\n",
-			       das1800_boards[board].name);
+			dev_dbg(dev->hw_dev, "Board model: %s\n",
+				das1800_boards[board].name);
 			return board;
 		}
 		printk
@@ -854,8 +856,8 @@ static int das1800_probe(struct comedi_device *dev)
 	case 0x5:
 		if (board == das1801ao || board == das1802ao ||
 		    board == das1701ao || board == das1702ao) {
-			printk(" Board model: %s\n",
-			       das1800_boards[board].name);
+			dev_dbg(dev->hw_dev, "Board model: %s\n",
+				das1800_boards[board].name);
 			return board;
 		}
 		printk
@@ -864,18 +866,19 @@ static int das1800_probe(struct comedi_device *dev)
 		break;
 	case 0x6:
 		if (board == das1802hr || board == das1702hr) {
-			printk(" Board model: %s\n",
-			       das1800_boards[board].name);
+			dev_dbg(dev->hw_dev, "Board model: %s\n",
+				das1800_boards[board].name);
 			return board;
 		}
-		printk(" Board model (probed, not recommended): das-1802hr\n");
+		printk
+		    (" Board model (probed, not recommended): das-1802hr\n");
 		return das1802hr;
 		break;
 	case 0x7:
 		if (board == das1801st || board == das1802st ||
 		    board == das1701st || board == das1702st) {
-			printk(" Board model: %s\n",
-			       das1800_boards[board].name);
+			dev_dbg(dev->hw_dev, "Board model: %s\n",
+				das1800_boards[board].name);
 			return board;
 		}
 		printk
@@ -884,8 +887,8 @@ static int das1800_probe(struct comedi_device *dev)
 		break;
 	case 0x8:
 		if (board == das1801hc || board == das1802hc) {
-			printk(" Board model: %s\n",
-			       das1800_boards[board].name);
+			dev_dbg(dev->hw_dev, "Board model: %s\n",
+				das1800_boards[board].name);
 			return board;
 		}
 		printk
diff --git a/drivers/staging/comedi/drivers/das6402.c b/drivers/staging/comedi/drivers/das6402.c
index 6328f5280b66..f25684145e84 100644
--- a/drivers/staging/comedi/drivers/das6402.c
+++ b/drivers/staging/comedi/drivers/das6402.c
@@ -171,7 +171,7 @@ static irqreturn_t intr_handler(int irq, void *d)
 	struct comedi_subdevice *s = dev->subdevices;
 
 	if (!dev->attached || devpriv->das6402_ignoreirq) {
-		printk("das6402: BUG: spurious interrupt\n");
+		dev_warn(dev->hw_dev, "BUG: spurious interrupt\n");
 		return IRQ_HANDLED;
 	}
 #ifdef DEBUG
@@ -228,9 +228,7 @@ static int das6402_ai_cancel(struct comedi_device *dev,
 	 */
 
 	devpriv->das6402_ignoreirq = 1;
-#ifdef DEBUG
-	printk("das6402: Stopping acquisition\n");
-#endif
+	dev_dbg(dev->hw_dev, "Stopping acquisition\n");
 	devpriv->das6402_ignoreirq = 1;
 	outb_p(0x02, dev->iobase + 10);	/* disable external trigging */
 	outw_p(SCANL, dev->iobase + 2);	/* resets the card fifo */
@@ -246,10 +244,7 @@ static int das6402_ai_mode2(struct comedi_device *dev,
 			    struct comedi_subdevice *s, comedi_trig * it)
 {
 	devpriv->das6402_ignoreirq = 1;
-
-#ifdef DEBUG
-	printk("das6402: Starting acquisition\n");
-#endif
+	dev_dbg(dev->hw_dev, "Starting acquisition\n");
 	outb_p(0x03, dev->iobase + 10);	/* enable external trigging */
 	outw_p(SCANL, dev->iobase + 2);	/* resets the card fifo */
 	outb_p(IRQ | CONVSRC | BURSTEN | INTE, dev->iobase + 9);
@@ -329,10 +324,8 @@ static int das6402_attach(struct comedi_device *dev,
 	if (iobase == 0)
 		iobase = 0x300;
 
-	printk("comedi%d: das6402: 0x%04lx", dev->minor, iobase);
-
 	if (!request_region(iobase, DAS6402_SIZE, "das6402")) {
-		printk(" I/O port conflict\n");
+		dev_err(dev->hw_dev, "I/O port conflict\n");
 		return -EIO;
 	}
 	dev->iobase = iobase;
@@ -340,14 +333,12 @@ static int das6402_attach(struct comedi_device *dev,
 	/* should do a probe here */
 
 	irq = it->options[0];
-	printk(" ( irq = %u )", irq);
+	dev_dbg(dev->hw_dev, "( irq = %u )\n", irq);
 	ret = request_irq(irq, intr_handler, 0, "das6402", dev);
-	if (ret < 0) {
-		printk("irq conflict\n");
+	if (ret < 0)
 		return ret;
-	}
-	dev->irq = irq;
 
+	dev->irq = irq;
 	ret = alloc_private(dev, sizeof(struct das6402_private));
 	if (ret < 0)
 		return ret;
diff --git a/drivers/staging/comedi/drivers/das800.c b/drivers/staging/comedi/drivers/das800.c
index 96d41ad76956..6e347b40fe61 100644
--- a/drivers/staging/comedi/drivers/das800.c
+++ b/drivers/staging/comedi/drivers/das800.c
@@ -296,47 +296,47 @@ static int das800_probe(struct comedi_device *dev)
 	switch (id_bits) {
 	case 0x0:
 		if (board == das800) {
-			printk(" Board model: DAS-800\n");
+			dev_dbg(dev->hw_dev, "Board model: DAS-800\n");
 			return board;
 		}
 		if (board == ciodas800) {
-			printk(" Board model: CIO-DAS800\n");
+			dev_dbg(dev->hw_dev, "Board model: CIO-DAS800\n");
 			return board;
 		}
-		printk(" Board model (probed): DAS-800\n");
+		dev_dbg(dev->hw_dev, "Board model (probed): DAS-800\n");
 		return das800;
 		break;
 	case 0x2:
 		if (board == das801) {
-			printk(" Board model: DAS-801\n");
+			dev_dbg(dev->hw_dev, "Board model: DAS-801\n");
 			return board;
 		}
 		if (board == ciodas801) {
-			printk(" Board model: CIO-DAS801\n");
+			dev_dbg(dev->hw_dev, "Board model: CIO-DAS801\n");
 			return board;
 		}
-		printk(" Board model (probed): DAS-801\n");
+		dev_dbg(dev->hw_dev, "Board model (probed): DAS-801\n");
 		return das801;
 		break;
 	case 0x3:
 		if (board == das802) {
-			printk(" Board model: DAS-802\n");
+			dev_dbg(dev->hw_dev, "Board model: DAS-802\n");
 			return board;
 		}
 		if (board == ciodas802) {
-			printk(" Board model: CIO-DAS802\n");
+			dev_dbg(dev->hw_dev, "Board model: CIO-DAS802\n");
 			return board;
 		}
 		if (board == ciodas80216) {
-			printk(" Board model: CIO-DAS802/16\n");
+			dev_dbg(dev->hw_dev, "Board model: CIO-DAS802/16\n");
 			return board;
 		}
-		printk(" Board model (probed): DAS-802\n");
+		dev_dbg(dev->hw_dev, "Board model (probed): DAS-802\n");
 		return das802;
 		break;
 	default:
-		printk(" Board model: probe returned 0x%x (unknown)\n",
-		       id_bits);
+		dev_dbg(dev->hw_dev, "Board model: probe returned 0x%x (unknown)\n",
+			id_bits);
 		return board;
 		break;
 	}
@@ -466,42 +466,43 @@ static int das800_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	unsigned long irq_flags;
 	int board;
 
-	printk("comedi%d: das800: io 0x%lx", dev->minor, iobase);
+	dev_info(dev->hw_dev, "comedi%d: das800: io 0x%lx\n", dev->minor,
+		 iobase);
 	if (irq)
-		printk(", irq %u", irq);
-	printk("\n");
+		dev_dbg(dev->hw_dev, "irq %u\n", irq);
 
 	/* allocate and initialize dev->private */
 	if (alloc_private(dev, sizeof(struct das800_private)) < 0)
 		return -ENOMEM;
 
 	if (iobase == 0) {
-		printk("io base address required for das800\n");
+		dev_err(dev->hw_dev, "io base address required for das800\n");
 		return -EINVAL;
 	}
 
 	/* check if io addresses are available */
 	if (!request_region(iobase, DAS800_SIZE, "das800")) {
-		printk("I/O port conflict\n");
+		dev_err(dev->hw_dev, "I/O port conflict\n");
 		return -EIO;
 	}
 	dev->iobase = iobase;
 
 	board = das800_probe(dev);
 	if (board < 0) {
-		printk("unable to determine board type\n");
+		dev_dbg(dev->hw_dev, "unable to determine board type\n");
 		return -ENODEV;
 	}
 	dev->board_ptr = das800_boards + board;
 
 	/* grab our IRQ */
 	if (irq == 1 || irq > 7) {
-		printk("irq out of range\n");
+		dev_err(dev->hw_dev, "irq out of range\n");
 		return -EINVAL;
 	}
 	if (irq) {
 		if (request_irq(irq, das800_interrupt, 0, "das800", dev)) {
-			printk("unable to allocate irq %u\n", irq);
+			dev_err(dev->hw_dev, "unable to allocate irq %u\n",
+				irq);
 			return -EINVAL;
 		}
 	}
@@ -557,7 +558,7 @@ static int das800_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 static int das800_detach(struct comedi_device *dev)
 {
-	printk("comedi%d: das800: remove\n", dev->minor);
+	dev_info(dev->hw_dev, "comedi%d: das800: remove\n", dev->minor);
 
 	/* only free stuff if it has been allocated by _attach */
 	if (dev->iobase)
diff --git a/drivers/staging/comedi/drivers/dt3000.c b/drivers/staging/comedi/drivers/dt3000.c
index 6170f7bac46e..0a7979e52999 100644
--- a/drivers/staging/comedi/drivers/dt3000.c
+++ b/drivers/staging/comedi/drivers/dt3000.c
@@ -352,7 +352,8 @@ static int dt3k_send_cmd(struct comedi_device *dev, unsigned int cmd)
 	if ((status & DT3000_COMPLETION_MASK) == DT3000_NOERROR)
 		return 0;
 
-	printk("dt3k_send_cmd() timeout/error status=0x%04x\n", status);
+	dev_dbg(dev->hw_dev, "dt3k_send_cmd() timeout/error status=0x%04x\n",
+		status);
 
 	return -ETIME;
 }
@@ -383,7 +384,7 @@ static void dt3k_writesingle(struct comedi_device *dev, unsigned int subsys,
 	dt3k_send_cmd(dev, CMD_WRITESINGLE);
 }
 
-static int debug_n_ints = 0;
+static int debug_n_ints;
 
 /* FIXME! Assumes shared interrupt is for this card. */
 /* What's this debug_n_ints stuff? Obviously needs some work... */
@@ -429,12 +430,12 @@ static char *intr_flags[] = {
 static void debug_intr_flags(unsigned int flags)
 {
 	int i;
-	printk("dt3k: intr_flags:");
+	printk(KERN_DEBUG "dt3k: intr_flags:");
 	for (i = 0; i < 8; i++) {
 		if (flags & (1 << i))
-			printk(" %s", intr_flags[i]);
+			printk(KERN_CONT " %s", intr_flags[i]);
 	}
-	printk("\n");
+	printk(KERN_CONT "\n");
 }
 #endif
 
@@ -452,7 +453,7 @@ static void dt3k_ai_empty_fifo(struct comedi_device *dev,
 	if (count < 0)
 		count += AI_FIFO_DEPTH;
 
-	printk("reading %d samples\n", count);
+	dev_dbg(dev->hw_dev, "reading %d samples\n", count);
 
 	rear = devpriv->ai_rear;
 
@@ -640,7 +641,7 @@ static int dt3k_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	int ret;
 	unsigned int mode;
 
-	printk("dt3k_ai_cmd:\n");
+	dev_dbg(dev->hw_dev, "dt3k_ai_cmd:\n");
 	for (i = 0; i < cmd->chanlist_len; i++) {
 		chan = CR_CHAN(cmd->chanlist[i]);
 		range = CR_RANGE(cmd->chanlist[i]);
@@ -651,15 +652,15 @@ static int dt3k_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	aref = CR_AREF(cmd->chanlist[0]);
 
 	writew(cmd->scan_end_arg, devpriv->io_addr + DPR_Params(0));
-	printk("param[0]=0x%04x\n", cmd->scan_end_arg);
+	dev_dbg(dev->hw_dev, "param[0]=0x%04x\n", cmd->scan_end_arg);
 
 	if (cmd->convert_src == TRIG_TIMER) {
 		divider = dt3k_ns_to_timer(50, &cmd->convert_arg,
 					   cmd->flags & TRIG_ROUND_MASK);
 		writew((divider >> 16), devpriv->io_addr + DPR_Params(1));
-		printk("param[1]=0x%04x\n", divider >> 16);
+		dev_dbg(dev->hw_dev, "param[1]=0x%04x\n", divider >> 16);
 		writew((divider & 0xffff), devpriv->io_addr + DPR_Params(2));
-		printk("param[2]=0x%04x\n", divider & 0xffff);
+		dev_dbg(dev->hw_dev, "param[2]=0x%04x\n", divider & 0xffff);
 	} else {
 		/* not supported */
 	}
@@ -668,21 +669,21 @@ static int dt3k_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 		tscandiv = dt3k_ns_to_timer(100, &cmd->scan_begin_arg,
 					    cmd->flags & TRIG_ROUND_MASK);
 		writew((tscandiv >> 16), devpriv->io_addr + DPR_Params(3));
-		printk("param[3]=0x%04x\n", tscandiv >> 16);
+		dev_dbg(dev->hw_dev, "param[3]=0x%04x\n", tscandiv >> 16);
 		writew((tscandiv & 0xffff), devpriv->io_addr + DPR_Params(4));
-		printk("param[4]=0x%04x\n", tscandiv & 0xffff);
+		dev_dbg(dev->hw_dev, "param[4]=0x%04x\n", tscandiv & 0xffff);
 	} else {
 		/* not supported */
 	}
 
 	mode = DT3000_AD_RETRIG_INTERNAL | 0 | 0;
 	writew(mode, devpriv->io_addr + DPR_Params(5));
-	printk("param[5]=0x%04x\n", mode);
+	dev_dbg(dev->hw_dev, "param[5]=0x%04x\n", mode);
 	writew(aref == AREF_DIFF, devpriv->io_addr + DPR_Params(6));
-	printk("param[6]=0x%04x\n", aref == AREF_DIFF);
+	dev_dbg(dev->hw_dev, "param[6]=0x%04x\n", aref == AREF_DIFF);
 
 	writew(AI_FIFO_DEPTH / 2, devpriv->io_addr + DPR_Params(7));
-	printk("param[7]=0x%04x\n", AI_FIFO_DEPTH / 2);
+	dev_dbg(dev->hw_dev, "param[7]=0x%04x\n", AI_FIFO_DEPTH / 2);
 
 	writew(SUBS_AI, devpriv->io_addr + DPR_SubSys);
 	ret = dt3k_send_cmd(dev, CMD_CONFIG);
@@ -848,7 +849,7 @@ static int dt3000_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	int bus, slot;
 	int ret = 0;
 
-	printk("dt3000:");
+	dev_dbg(dev->hw_dev, "dt3000:\n");
 	bus = it->options[0];
 	slot = it->options[1];
 
@@ -860,7 +861,7 @@ static int dt3000_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (ret < 0)
 		return ret;
 	if (ret == 0) {
-		printk(" no DT board found\n");
+		dev_warn(dev->hw_dev, "no DT board found\n");
 		return -ENODEV;
 	}
 
@@ -868,7 +869,8 @@ static int dt3000_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	if (request_irq(devpriv->pci_dev->irq, dt3k_interrupt, IRQF_SHARED,
 			"dt3000", dev)) {
-		printk(" unable to allocate IRQ %u\n", devpriv->pci_dev->irq);
+		dev_err(dev->hw_dev, "unable to allocate IRQ %u\n",
+			devpriv->pci_dev->irq);
 		return -EINVAL;
 	}
 	dev->irq = devpriv->pci_dev->irq;
diff --git a/drivers/staging/comedi/drivers/jr3_pci.c b/drivers/staging/comedi/drivers/jr3_pci.c
index 8d98cf412709..6a79ba10630d 100644
--- a/drivers/staging/comedi/drivers/jr3_pci.c
+++ b/drivers/staging/comedi/drivers/jr3_pci.c
@@ -71,18 +71,12 @@ static struct comedi_driver driver_jr3_pci = {
 };
 
 static DEFINE_PCI_DEVICE_TABLE(jr3_pci_pci_table) = {
-	{
-	PCI_VENDOR_ID_JR3, PCI_DEVICE_ID_JR3_1_CHANNEL,
-		    PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, {
-	PCI_VENDOR_ID_JR3, PCI_DEVICE_ID_JR3_1_CHANNEL_NEW,
-		    PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, {
-	PCI_VENDOR_ID_JR3, PCI_DEVICE_ID_JR3_2_CHANNEL,
-		    PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, {
-	PCI_VENDOR_ID_JR3, PCI_DEVICE_ID_JR3_3_CHANNEL,
-		    PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, {
-	PCI_VENDOR_ID_JR3, PCI_DEVICE_ID_JR3_4_CHANNEL,
-		    PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, {
-	0}
+	{ PCI_DEVICE(PCI_VENDOR_ID_JR3, PCI_DEVICE_ID_JR3_1_CHANNEL) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_JR3, PCI_DEVICE_ID_JR3_1_CHANNEL_NEW) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_JR3, PCI_DEVICE_ID_JR3_2_CHANNEL) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_JR3, PCI_DEVICE_ID_JR3_3_CHANNEL) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_JR3, PCI_DEVICE_ID_JR3_4_CHANNEL) },
+	{0}
 };
 
 MODULE_DEVICE_TABLE(pci, jr3_pci_pci_table);
@@ -378,14 +372,14 @@ static int jr3_pci_open(struct comedi_device *dev)
 	int i;
 	struct jr3_pci_dev_private *devpriv = dev->private;
 
-	printk("jr3_pci_open\n");
+	dev_dbg(dev->hw_dev, "jr3_pci_open\n");
 	for (i = 0; i < devpriv->n_channels; i++) {
 		struct jr3_pci_subdev_private *p;
 
 		p = dev->subdevices[i].private;
 		if (p) {
-			printk("serial: %p %d (%d)\n", p, p->serial_no,
-			       p->channel_no);
+			dev_dbg(dev->hw_dev, "serial: %p %d (%d)\n", p,
+				p->serial_no, p->channel_no);
 		}
 	}
 	return 0;
@@ -463,8 +457,8 @@ static int jr3_download_firmware(struct comedi_device *dev, const u8 * data,
 					break;
 				more = more
 				    && read_idm_word(data, size, &pos, &addr);
-				printk("Loading#%d %4.4x bytes at %4.4x\n", i,
-				       count, addr);
+				dev_dbg(dev->hw_dev, "Loading#%d %4.4x bytes at %4.4x\n",
+					i, count, addr);
 				while (more && count > 0) {
 					if (addr & 0x4000) {
 						/*  16 bit data, never seen in real life!! */
@@ -599,24 +593,24 @@ static struct poll_delay_t jr3_pci_poll_subdevice(struct comedi_subdevice *s)
 					min_full_scale =
 					    get_min_full_scales(channel);
 					printk("Obtained Min. Full Scales:\n");
-					printk("%i   ", (min_full_scale).fx);
-					printk("%i   ", (min_full_scale).fy);
-					printk("%i   ", (min_full_scale).fz);
-					printk("%i   ", (min_full_scale).mx);
-					printk("%i   ", (min_full_scale).my);
-					printk("%i   ", (min_full_scale).mz);
-					printk("\n");
+					printk(KERN_DEBUG "%i ", (min_full_scale).fx);
+					printk(KERN_CONT "%i ", (min_full_scale).fy);
+					printk(KERN_CONT "%i ", (min_full_scale).fz);
+					printk(KERN_CONT "%i ", (min_full_scale).mx);
+					printk(KERN_CONT "%i ", (min_full_scale).my);
+					printk(KERN_CONT "%i ", (min_full_scale).mz);
+					printk(KERN_CONT "\n");
 
 					max_full_scale =
 					    get_max_full_scales(channel);
 					printk("Obtained Max. Full Scales:\n");
-					printk("%i   ", (max_full_scale).fx);
-					printk("%i   ", (max_full_scale).fy);
-					printk("%i   ", (max_full_scale).fz);
-					printk("%i   ", (max_full_scale).mx);
-					printk("%i   ", (max_full_scale).my);
-					printk("%i   ", (max_full_scale).mz);
-					printk("\n");
+					printk(KERN_DEBUG "%i ", (max_full_scale).fx);
+					printk(KERN_CONT "%i ", (max_full_scale).fy);
+					printk(KERN_CONT "%i ", (max_full_scale).fz);
+					printk(KERN_CONT "%i ", (max_full_scale).mx);
+					printk(KERN_CONT "%i ", (max_full_scale).my);
+					printk(KERN_CONT "%i ", (max_full_scale).mz);
+					printk(KERN_CONT "\n");
 
 					set_full_scales(channel,
 							max_full_scale);
@@ -779,14 +773,12 @@ static int jr3_pci_attach(struct comedi_device *dev,
 	int opt_bus, opt_slot, i;
 	struct jr3_pci_dev_private *devpriv;
 
-	printk("comedi%d: jr3_pci\n", dev->minor);
-
 	opt_bus = it->options[0];
 	opt_slot = it->options[1];
 
 	if (sizeof(struct jr3_channel) != 0xc00) {
-		printk("sizeof(struct jr3_channel) = %x [expected %x]\n",
-		       (unsigned)sizeof(struct jr3_channel), 0xc00);
+		dev_err(dev->hw_dev, "sizeof(struct jr3_channel) = %x [expected %x]\n",
+			(unsigned)sizeof(struct jr3_channel), 0xc00);
 		return -EINVAL;
 	}
 
@@ -840,7 +832,7 @@ static int jr3_pci_attach(struct comedi_device *dev,
 		}
 	}
 	if (!card) {
-		printk(" no jr3_pci found\n");
+		dev_err(dev->hw_dev, "no jr3_pci found\n");
 		return -EIO;
 	} else {
 		devpriv->pci_dev = card;
@@ -875,10 +867,10 @@ static int jr3_pci_attach(struct comedi_device *dev,
 
 			p = dev->subdevices[i].private;
 			p->channel = &devpriv->iobase->channel[i].data;
-			printk("p->channel %p %p (%tx)\n",
-			       p->channel, devpriv->iobase,
-			       ((char *)(p->channel) -
-				(char *)(devpriv->iobase)));
+			dev_dbg(dev->hw_dev, "p->channel %p %p (%tx)\n",
+				p->channel, devpriv->iobase,
+				((char *)(p->channel) -
+				 (char *)(devpriv->iobase)));
 			p->channel_no = i;
 			for (j = 0; j < 8; j++) {
 				int k;
@@ -916,7 +908,7 @@ static int jr3_pci_attach(struct comedi_device *dev,
 	devpriv->iobase->channel[0].reset = 0;
 
 	result = comedi_load_firmware(dev, "jr3pci.idm", jr3_download_firmware);
-	printk("Firmare load %d\n", result);
+	dev_dbg(dev->hw_dev, "Firmare load %d\n", result);
 
 	if (result < 0)
 		goto out;
@@ -934,9 +926,9 @@ static int jr3_pci_attach(struct comedi_device *dev,
  */
 	msleep_interruptible(25);
 	for (i = 0; i < 0x18; i++) {
-		printk("%c",
-		       get_u16(&devpriv->iobase->channel[0].
-			       data.copyright[i]) >> 8);
+		dev_dbg(dev->hw_dev, "%c\n",
+			get_u16(&devpriv->iobase->channel[0].
+				data.copyright[i]) >> 8);
 	}
 
 	/*  Start card timer */
@@ -963,7 +955,6 @@ static int jr3_pci_detach(struct comedi_device *dev)
 	int i;
 	struct jr3_pci_dev_private *devpriv = dev->private;
 
-	printk("comedi%d: jr3_pci: remove\n", dev->minor);
 	if (devpriv) {
 		del_timer_sync(&devpriv->timer);
 
diff --git a/drivers/staging/comedi/drivers/ke_counter.c b/drivers/staging/comedi/drivers/ke_counter.c
index 286093bca3fb..4e9e9a078652 100644
--- a/drivers/staging/comedi/drivers/ke_counter.c
+++ b/drivers/staging/comedi/drivers/ke_counter.c
@@ -52,10 +52,8 @@ static int cnt_attach(struct comedi_device *dev, struct comedi_devconfig *it);
 static int cnt_detach(struct comedi_device *dev);
 
 static DEFINE_PCI_DEVICE_TABLE(cnt_pci_table) = {
-	{
-	PCI_VENDOR_ID_KOLTER, CNT_CARD_DEVICE_ID, PCI_ANY_ID,
-		    PCI_ANY_ID, 0, 0, 0}, {
-	0}
+	{ PCI_DEVICE(PCI_VENDOR_ID_KOLTER, CNT_CARD_DEVICE_ID) },
+	{0}
 };
 
 MODULE_DEVICE_TABLE(pci, cnt_pci_table);
diff --git a/drivers/staging/comedi/drivers/me_daq.c b/drivers/staging/comedi/drivers/me_daq.c
index cda4b224b30f..8b812e41c52b 100644
--- a/drivers/staging/comedi/drivers/me_daq.c
+++ b/drivers/staging/comedi/drivers/me_daq.c
@@ -188,12 +188,9 @@ static const struct comedi_lrange me2600_ao_range = {
 };
 
 static DEFINE_PCI_DEVICE_TABLE(me_pci_table) = {
-	{
-	PCI_VENDOR_ID_MEILHAUS, ME2600_DEVICE_ID, PCI_ANY_ID,
-		    PCI_ANY_ID, 0, 0, 0}, {
-	PCI_VENDOR_ID_MEILHAUS, ME2000_DEVICE_ID, PCI_ANY_ID,
-		    PCI_ANY_ID, 0, 0, 0}, {
-	0}
+	{ PCI_DEVICE(PCI_VENDOR_ID_MEILHAUS, ME2600_DEVICE_ID) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_MEILHAUS, ME2000_DEVICE_ID) },
+	{0}
 };
 
 MODULE_DEVICE_TABLE(pci, me_pci_table);
diff --git a/drivers/staging/comedi/drivers/ni_at_a2150.c b/drivers/staging/comedi/drivers/ni_at_a2150.c
index 32e675e3f0b9..c25e44c1905e 100644
--- a/drivers/staging/comedi/drivers/ni_at_a2150.c
+++ b/drivers/staging/comedi/drivers/ni_at_a2150.c
@@ -731,9 +731,8 @@ static int a2150_ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	outw(trigger_bits, dev->iobase + TRIGGER_REG);
 
 	/*  start acquisition for soft trigger */
-	if (cmd->start_src == TRIG_NOW) {
+	if (cmd->start_src == TRIG_NOW)
 		outw(0, dev->iobase + FIFO_START_REG);
-	}
 #ifdef A2150_DEBUG
 	ni_dump_regs(dev);
 #endif
@@ -860,11 +859,10 @@ static int a2150_get_timing(struct comedi_device *dev, unsigned int *period,
 	case TRIG_ROUND_NEAREST:
 	default:
 		/*  if least upper bound is better approximation */
-		if (lub - *period < *period - glb) {
+		if (lub - *period < *period - glb)
 			*period = lub;
-		} else {
+		else
 			*period = glb;
-		}
 		break;
 	case TRIG_ROUND_UP:
 		*period = lub;
diff --git a/drivers/staging/comedi/drivers/ni_daq_dio24.c b/drivers/staging/comedi/drivers/ni_daq_dio24.c
index 49b824c7bd2e..c0423a8c3e36 100644
--- a/drivers/staging/comedi/drivers/ni_daq_dio24.c
+++ b/drivers/staging/comedi/drivers/ni_daq_dio24.c
@@ -52,7 +52,7 @@ the PCMCIA interface.
 #include <pcmcia/cisreg.h>
 #include <pcmcia/ds.h>
 
-static struct pcmcia_device *pcmcia_cur_dev = NULL;
+static struct pcmcia_device *pcmcia_cur_dev;
 
 #define DIO24_SIZE 4		/*  size of io region used by board */
 
@@ -133,22 +133,19 @@ static int dio24_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 #endif
 		break;
 	default:
-		printk("bug! couldn't determine board type\n");
+		pr_err("bug! couldn't determine board type\n");
 		return -EINVAL;
 		break;
 	}
-	printk("comedi%d: ni_daq_dio24: %s, io 0x%lx", dev->minor,
-	       thisboard->name, iobase);
+	pr_debug("comedi%d: ni_daq_dio24: %s, io 0x%lx", dev->minor,
+		 thisboard->name, iobase);
 #ifdef incomplete
-	if (irq) {
-		printk(", irq %u", irq);
-	}
+	if (irq)
+		pr_debug("irq %u\n", irq);
 #endif
 
-	printk("\n");
-
 	if (iobase == 0) {
-		printk("io base address is zero!\n");
+		pr_err("io base address is zero!\n");
 		return -EINVAL;
 	}
 
@@ -173,7 +170,7 @@ static int dio24_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 static int dio24_detach(struct comedi_device *dev)
 {
-	printk("comedi%d: ni_daq_dio24: remove\n", dev->minor);
+	dev_info(dev->hw_dev, "comedi%d: ni_daq_dio24: remove\n", dev->minor);
 
 	if (dev->subdevices)
 		subdev_8255_cleanup(dev, dev->subdevices + 0);
diff --git a/drivers/staging/comedi/drivers/ni_labpc_cs.c b/drivers/staging/comedi/drivers/ni_labpc_cs.c
index 832a5178b638..ff3840544dd4 100644
--- a/drivers/staging/comedi/drivers/ni_labpc_cs.c
+++ b/drivers/staging/comedi/drivers/ni_labpc_cs.c
@@ -145,7 +145,7 @@ static int labpc_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 		irq = link->irq;
 		break;
 	default:
-		printk("bug! couldn't determine board type\n");
+		pr_err("bug! couldn't determine board type\n");
 		return -EINVAL;
 		break;
 	}
diff --git a/drivers/staging/comedi/drivers/ni_pcimio.c b/drivers/staging/comedi/drivers/ni_pcimio.c
index 9148abdad074..0f0d995f137c 100644
--- a/drivers/staging/comedi/drivers/ni_pcimio.c
+++ b/drivers/staging/comedi/drivers/ni_pcimio.c
@@ -1470,7 +1470,7 @@ static void m_series_stc_writew(struct comedi_device *dev, uint16_t data,
 		/* FIXME: DIO_Output_Register (16 bit reg) is replaced by M_Offset_Static_Digital_Output (32 bit)
 		   and M_Offset_SCXI_Serial_Data_Out (8 bit) */
 	default:
-		printk("%s: bug! unhandled register=0x%x in switch.\n",
+		printk(KERN_WARNING "%s: bug! unhandled register=0x%x in switch.\n",
 		       __func__, reg);
 		BUG();
 		return;
@@ -1505,7 +1505,7 @@ static uint16_t m_series_stc_readw(struct comedi_device *dev, int reg)
 		offset = M_Offset_G01_Status;
 		break;
 	default:
-		printk("%s: bug! unhandled register=0x%x in switch.\n",
+		printk(KERN_WARNING "%s: bug! unhandled register=0x%x in switch.\n",
 		       __func__, reg);
 		BUG();
 		return 0;
@@ -1547,7 +1547,7 @@ static void m_series_stc_writel(struct comedi_device *dev, uint32_t data,
 		offset = M_Offset_G1_Load_B;
 		break;
 	default:
-		printk("%s: bug! unhandled register=0x%x in switch.\n",
+		printk(KERN_WARNING "%s: bug! unhandled register=0x%x in switch.\n",
 		       __func__, reg);
 		BUG();
 		return;
@@ -1573,7 +1573,7 @@ static uint32_t m_series_stc_readl(struct comedi_device *dev, int reg)
 		offset = M_Offset_G1_Save;
 		break;
 	default:
-		printk("%s: bug! unhandled register=0x%x in switch.\n",
+		printk(KERN_WARNING "%s: bug! unhandled register=0x%x in switch.\n",
 		       __func__, reg);
 		BUG();
 		return 0;
@@ -1632,9 +1632,8 @@ static void m_series_init_eeprom_buffer(struct comedi_device *dev)
 	}
 	devpriv->serial_number = be32_to_cpu(devpriv->serial_number);
 
-	for (i = 0; i < M_SERIES_EEPROM_SIZE; ++i) {
+	for (i = 0; i < M_SERIES_EEPROM_SIZE; ++i)
 		devpriv->eeprom_buffer[i] = ni_readb(Start_Cal_EEPROM + i);
-	}
 
 	writel(old_iodwbsr1_bits, devpriv->mite->mite_io_addr + MITE_IODWBSR_1);
 	writel(old_iodwbsr_bits, devpriv->mite->mite_io_addr + MITE_IODWBSR);
@@ -1665,9 +1664,9 @@ static void init_6143(struct comedi_device *dev)
 static int pcimio_detach(struct comedi_device *dev)
 {
 	mio_common_detach(dev);
-	if (dev->irq) {
+	if (dev->irq)
 		free_irq(dev->irq, dev);
-	}
+
 	if (dev->private) {
 		mite_free_ring(devpriv->ai_mite_ring);
 		mite_free_ring(devpriv->ao_mite_ring);
@@ -1685,7 +1684,7 @@ static int pcimio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 {
 	int ret;
 
-	printk("comedi%d: ni_pcimio:", dev->minor);
+	dev_info(dev->hw_dev, "comedi%d: ni_pcimio:\n", dev->minor);
 
 	ret = ni_alloc_private(dev);
 	if (ret < 0)
@@ -1695,7 +1694,7 @@ static int pcimio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	if (ret < 0)
 		return ret;
 
-	printk(" %s", boardtype.name);
+	dev_dbg(dev->hw_dev, "%s\n", boardtype.name);
 	dev->board_name = boardtype.name;
 
 	if (boardtype.reg_type & ni_reg_m_series_mask) {
@@ -1712,7 +1711,7 @@ static int pcimio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	ret = mite_setup(devpriv->mite);
 	if (ret < 0) {
-		printk(" error setting up mite\n");
+		pr_warn("error setting up mite\n");
 		return ret;
 	}
 	comedi_set_hw_dev(dev, &devpriv->mite->pcidev->dev);
@@ -1740,13 +1739,13 @@ static int pcimio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	dev->irq = mite_irq(devpriv->mite);
 
 	if (dev->irq == 0) {
-		printk(" unknown irq (bad)\n");
+		pr_warn("unknown irq (bad)\n");
 	} else {
-		printk(" ( irq = %u )", dev->irq);
+		pr_debug("( irq = %u )\n", dev->irq);
 		ret = request_irq(dev->irq, ni_E_interrupt, NI_E_IRQ_FLAGS,
 				  DRV_NAME, dev);
 		if (ret < 0) {
-			printk(" irq not available\n");
+			pr_warn("irq not available\n");
 			dev->irq = 0;
 		}
 	}
@@ -1787,7 +1786,7 @@ static int pcimio_find_device(struct comedi_device *dev, int bus, int slot)
 			}
 		}
 	}
-	printk("no device found\n");
+	pr_warn("no device found\n");
 	mite_list_devices();
 	return -EIO;
 }
diff --git a/drivers/staging/comedi/drivers/pcl816.c b/drivers/staging/comedi/drivers/pcl816.c
index 0b9bee36eb5f..96cd7ec2ad53 100644
--- a/drivers/staging/comedi/drivers/pcl816.c
+++ b/drivers/staging/comedi/drivers/pcl816.c
@@ -155,8 +155,8 @@ static int pcl816_attach(struct comedi_device *dev,
 static int pcl816_detach(struct comedi_device *dev);
 
 #ifdef unused
-static int RTC_lock = 0;	/* RTC lock */
-static int RTC_timer_lock = 0;	/* RTC int lock */
+static int RTC_lock;	/* RTC lock */
+static int RTC_timer_lock;	/* RTC int lock */
 #endif
 
 static struct comedi_driver driver_pcl816 = {
diff --git a/drivers/staging/comedi/drivers/pcl818.c b/drivers/staging/comedi/drivers/pcl818.c
index b45a9bd8b489..7344a53a81c4 100644
--- a/drivers/staging/comedi/drivers/pcl818.c
+++ b/drivers/staging/comedi/drivers/pcl818.c
@@ -252,8 +252,8 @@ static int pcl818_attach(struct comedi_device *dev,
 static int pcl818_detach(struct comedi_device *dev);
 
 #ifdef unused
-static int RTC_lock = 0;	/* RTC lock */
-static int RTC_timer_lock = 0;	/* RTC int lock */
+static int RTC_lock;	/* RTC lock */
+static int RTC_timer_lock;	/* RTC int lock */
 #endif
 
 struct pcl818_board {
@@ -463,9 +463,8 @@ static int pcl818_ao_insn_read(struct comedi_device *dev,
 	int n;
 	int chan = CR_CHAN(insn->chanspec);
 
-	for (n = 0; n < insn->n; n++) {
+	for (n = 0; n < insn->n; n++)
 		data[n] = devpriv->ao_readback[chan];
-	}
 
 	return n;
 }
@@ -571,9 +570,9 @@ conv_finish:
 		return IRQ_HANDLED;
 	}
 	devpriv->act_chanlist_pos++;
-	if (devpriv->act_chanlist_pos >= devpriv->act_chanlist_len) {
+	if (devpriv->act_chanlist_pos >= devpriv->act_chanlist_len)
 		devpriv->act_chanlist_pos = 0;
-	}
+
 	s->async->cur_chan++;
 	if (s->async->cur_chan >= devpriv->ai_n_chan) {
 		/*  printk("E"); */
@@ -645,9 +644,9 @@ static irqreturn_t interrupt_pcl818_ai_mode13_dma(int irq, void *d)
 		comedi_buf_put(s->async, ptr[bufptr++] >> 4);	/*  get one sample */
 
 		devpriv->act_chanlist_pos++;
-		if (devpriv->act_chanlist_pos >= devpriv->act_chanlist_len) {
+		if (devpriv->act_chanlist_pos >= devpriv->act_chanlist_len)
 			devpriv->act_chanlist_pos = 0;
-		}
+
 		s->async->cur_chan++;
 		if (s->async->cur_chan >= devpriv->ai_n_chan) {
 			s->async->cur_chan = 0;
@@ -805,11 +804,10 @@ static irqreturn_t interrupt_pcl818_ai_mode13_fifo(int irq, void *d)
 		return IRQ_HANDLED;
 	}
 
-	if (lo & 2) {
+	if (lo & 2)
 		len = 512;
-	} else {
+	else
 		len = 0;
-	}
 
 	for (i = 0; i < len; i++) {
 		lo = inb(dev->iobase + PCL818_FI_DATALO);
@@ -827,9 +825,9 @@ static irqreturn_t interrupt_pcl818_ai_mode13_fifo(int irq, void *d)
 		comedi_buf_put(s->async, (lo >> 4) | (inb(dev->iobase + PCL818_FI_DATAHI) << 4));	/*  get one sample */
 
 		devpriv->act_chanlist_pos++;
-		if (devpriv->act_chanlist_pos >= devpriv->act_chanlist_len) {
+		if (devpriv->act_chanlist_pos >= devpriv->act_chanlist_len)
 			devpriv->act_chanlist_pos = 0;
-		}
+
 		s->async->cur_chan++;
 		if (s->async->cur_chan >= devpriv->ai_n_chan) {
 			s->async->cur_chan = 0;
@@ -1009,7 +1007,7 @@ static int pcl818_ai_cmd_mode(int mode, struct comedi_device *dev,
 	int divisor1 = 0, divisor2 = 0;
 	unsigned int seglen;
 
-	printk("pcl818_ai_cmd_mode()\n");
+	dev_dbg(dev->hw_dev, "pcl818_ai_cmd_mode()\n");
 	if ((!dev->irq) && (!devpriv->dma_rtc)) {
 		comedi_error(dev, "IRQ not defined!");
 		return -EINVAL;
@@ -1112,7 +1110,7 @@ static int pcl818_ai_cmd_mode(int mode, struct comedi_device *dev,
 		break;
 	}
 #endif
-	printk("pcl818_ai_cmd_mode() end\n");
+	dev_dbg(dev->hw_dev, "pcl818_ai_cmd_mode() end\n");
 	return 0;
 }
 
@@ -1309,11 +1307,9 @@ static void setup_channel_list(struct comedi_device *dev,
 */
 static int check_single_ended(unsigned int port)
 {
-	if (inb(port + PCL818_STATUS) & 0x20) {
+	if (inb(port + PCL818_STATUS) & 0x20)
 		return 1;
-	} else {
-		return 0;
-	}
+	return 0;
 }
 
 /*
@@ -1352,9 +1348,8 @@ static int ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
 	if (!cmd->stop_src || tmp != cmd->stop_src)
 		err++;
 
-	if (err) {
+	if (err)
 		return 1;
-	}
 
 	/* step 2: make sure trigger sources are unique and mutually compatible */
 
@@ -1377,9 +1372,8 @@ static int ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
 	if (cmd->stop_src != TRIG_NONE && cmd->stop_src != TRIG_COUNT)
 		err++;
 
-	if (err) {
+	if (err)
 		return 2;
-	}
 
 	/* step 3: make sure arguments are trivially compatible */
 
@@ -1421,9 +1415,8 @@ static int ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
 		}
 	}
 
-	if (err) {
+	if (err)
 		return 3;
-	}
 
 	/* step 4: fix up any arguments */
 
@@ -1438,9 +1431,8 @@ static int ai_cmdtest(struct comedi_device *dev, struct comedi_subdevice *s,
 			err++;
 	}
 
-	if (err) {
+	if (err)
 		return 4;
-	}
 
 	/* step 5: complain about special chanlist considerations */
 
@@ -1461,7 +1453,7 @@ static int ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	struct comedi_cmd *cmd = &s->async->cmd;
 	int retval;
 
-	printk("pcl818_ai_cmd()\n");
+	dev_dbg(dev->hw_dev, "pcl818_ai_cmd()\n");
 	devpriv->ai_n_chan = cmd->chanlist_len;
 	devpriv->ai_chanlist = cmd->chanlist;
 	devpriv->ai_flags = cmd->flags;
@@ -1470,17 +1462,16 @@ static int ai_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	devpriv->ai_timer1 = 0;
 	devpriv->ai_timer2 = 0;
 
-	if (cmd->stop_src == TRIG_COUNT) {
+	if (cmd->stop_src == TRIG_COUNT)
 		devpriv->ai_scans = cmd->stop_arg;
-	} else {
+	else
 		devpriv->ai_scans = 0;
-	}
 
 	if (cmd->scan_begin_src == TRIG_FOLLOW) {	/*  mode 1, 3 */
 		if (cmd->convert_src == TRIG_TIMER) {	/*  mode 1 */
 			devpriv->ai_timer1 = cmd->convert_arg;
 			retval = pcl818_ai_cmd_mode(1, dev, s);
-			printk("pcl818_ai_cmd() end\n");
+			dev_dbg(dev->hw_dev, "pcl818_ai_cmd() end\n");
 			return retval;
 		}
 		if (cmd->convert_src == TRIG_EXT) {	/*  mode 3 */
@@ -1499,7 +1490,7 @@ static int pcl818_ai_cancel(struct comedi_device *dev,
 			    struct comedi_subdevice *s)
 {
 	if (devpriv->irq_blocked > 0) {
-		printk("pcl818_ai_cancel()\n");
+		dev_dbg(dev->hw_dev, "pcl818_ai_cancel()\n");
 		devpriv->irq_was_now_closed = 1;
 
 		switch (devpriv->ai_mode) {
@@ -1549,7 +1540,7 @@ static int pcl818_ai_cancel(struct comedi_device *dev,
 	}
 
 end:
-	printk("pcl818_ai_cancel() end\n");
+	dev_dbg(dev->hw_dev, "pcl818_ai_cancel() end\n");
 	return 0;
 }
 
@@ -1633,11 +1624,11 @@ static int set_rtc_irq_bit(unsigned char bit)
 	save_flags(flags);
 	cli();
 	val = CMOS_READ(RTC_CONTROL);
-	if (bit) {
+	if (bit)
 		val |= RTC_PIE;
-	} else {
+	else
 		val &= ~RTC_PIE;
-	}
+
 	CMOS_WRITE(val, RTC_CONTROL);
 	CMOS_READ(RTC_INTR_FLAGS);
 	restore_flags(flags);
@@ -1754,22 +1745,23 @@ static int pcl818_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 
 	/* claim our I/O space */
 	iobase = it->options[0];
-	printk("comedi%d: pcl818:  board=%s, ioport=0x%03lx",
-	       dev->minor, this_board->name, iobase);
+	printk
+	    ("comedi%d: pcl818:  board=%s, ioport=0x%03lx",
+	     dev->minor, this_board->name, iobase);
 	devpriv->io_range = this_board->io_range;
 	if ((this_board->fifo) && (it->options[2] == -1)) {	/*  we've board with FIFO and we want to use FIFO */
 		devpriv->io_range = PCLx1xFIFO_RANGE;
 		devpriv->usefifo = 1;
 	}
 	if (!request_region(iobase, devpriv->io_range, "pcl818")) {
-		printk("I/O port conflict\n");
+		comedi_error(dev, "I/O port conflict\n");
 		return -EIO;
 	}
 
 	dev->iobase = iobase;
 
 	if (pcl818_check(iobase)) {
-		printk(", I can't detect board. FAIL!\n");
+		comedi_error(dev, "I can't detect board. FAIL!\n");
 		return -EIO;
 	}
 
@@ -1793,19 +1785,18 @@ static int pcl818_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 					     irq);
 					irq = 0;	/* Can't use IRQ */
 				} else {
-					printk(", irq=%u", irq);
+					printk(KERN_DEBUG "irq=%u", irq);
 				}
 			}
 		}
 	}
 
 	dev->irq = irq;
-	if (irq) {
-		devpriv->irq_free = 1;
-	} /* 1=we have allocated irq */
-	else {
+	if (irq)
+		devpriv->irq_free = 1;   /* 1=we have allocated irq */
+	else
 		devpriv->irq_free = 0;
-	}
+
 	devpriv->irq_blocked = 0;	/* number of subdevice which use IRQ */
 	devpriv->ai_mode = 0;	/* mode of irq */
 
@@ -1825,7 +1816,7 @@ static int pcl818_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 				 "pcl818 DMA (RTC)", dev)) {
 			devpriv->dma_rtc = 1;
 			devpriv->rtc_irq = RTC_IRQ;
-			printk(", dma_irq=%u", devpriv->rtc_irq);
+			printk(KERN_DEBUG "dma_irq=%u", devpriv->rtc_irq);
 		} else {
 			RTC_lock--;
 			if (RTC_lock == 0) {
@@ -1850,34 +1841,26 @@ no_rtc:
 		if (dma < 1)
 			goto no_dma;	/* DMA disabled */
 		if (((1 << dma) & this_board->DMAbits) == 0) {
-			printk(", DMA is out of allowed range, FAIL!\n");
+			printk(KERN_ERR "DMA is out of allowed range, FAIL!\n");
 			return -EINVAL;	/* Bad DMA */
 		}
 		ret = request_dma(dma, "pcl818");
-		if (ret) {
-			printk(", unable to allocate DMA %u, FAIL!\n", dma);
+		if (ret)
 			return -EBUSY;	/* DMA isn't free */
-		}
 		devpriv->dma = dma;
-		printk(", dma=%u", dma);
 		pages = 2;	/* we need 16KB */
 		devpriv->dmabuf[0] = __get_dma_pages(GFP_KERNEL, pages);
-		if (!devpriv->dmabuf[0]) {
-			printk(", unable to allocate DMA buffer, FAIL!\n");
+		if (!devpriv->dmabuf[0])
 			/* maybe experiment with try_to_free_pages() will help .... */
 			return -EBUSY;	/* no buffer :-( */
-		}
 		devpriv->dmapages[0] = pages;
 		devpriv->hwdmaptr[0] = virt_to_bus((void *)devpriv->dmabuf[0]);
 		devpriv->hwdmasize[0] = (1 << pages) * PAGE_SIZE;
 		/* printk("%d %d %ld, ",devpriv->dmapages[0],devpriv->hwdmasize[0],PAGE_SIZE); */
 		if (devpriv->dma_rtc == 0) {	/*  we must do duble buff :-( */
 			devpriv->dmabuf[1] = __get_dma_pages(GFP_KERNEL, pages);
-			if (!devpriv->dmabuf[1]) {
-				printk
-				    (", unable to allocate DMA buffer, FAIL!\n");
+			if (!devpriv->dmabuf[1])
 				return -EBUSY;
-			}
 			devpriv->dmapages[1] = pages;
 			devpriv->hwdmaptr[1] =
 			    virt_to_bus((void *)devpriv->dmabuf[1]);
@@ -2017,11 +2000,10 @@ no_dma:
 	}
 
 	/* select 1/10MHz oscilator */
-	if ((it->options[3] == 0) || (it->options[3] == 10)) {
+	if ((it->options[3] == 0) || (it->options[3] == 10))
 		devpriv->i8253_osc_base = 100;
-	} else {
+	else
 		devpriv->i8253_osc_base = 1000;
-	}
 
 	/* max sampling speed */
 	devpriv->ns_min = this_board->ns_min;
diff --git a/drivers/staging/comedi/drivers/pcmmio.c b/drivers/staging/comedi/drivers/pcmmio.c
index 3ad04aaa1e3c..eddac00e4e29 100644
--- a/drivers/staging/comedi/drivers/pcmmio.c
+++ b/drivers/staging/comedi/drivers/pcmmio.c
@@ -371,15 +371,15 @@ static int pcmmio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	iobase = it->options[0];
 	irq[0] = it->options[1];
 
-	printk(KERN_INFO "comedi%d: %s: io: %lx ", dev->minor, driver.driver_name,
-	       iobase);
+	printk(KERN_INFO "comedi%d: %s: io: %lx attaching...\n", dev->minor,
+			driver.driver_name, iobase);
 
 	dev->iobase = iobase;
 
 	if (!iobase || !request_region(iobase,
 				       thisboard->total_iosize,
 				       driver.driver_name)) {
-		printk(KERN_ERR "I/O port conflict\n");
+		printk(KERN_ERR "comedi%d: I/O port conflict\n", dev->minor);
 		return -EIO;
 	}
 
@@ -394,7 +394,8 @@ static int pcmmio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
  * convenient macro defined in comedidev.h.
  */
 	if (alloc_private(dev, sizeof(struct pcmmio_private)) < 0) {
-		printk(KERN_ERR "cannot allocate private data structure\n");
+		printk(KERN_ERR "comedi%d: cannot allocate private data structure\n",
+				dev->minor);
 		return -ENOMEM;
 	}
 
@@ -417,7 +418,8 @@ static int pcmmio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	    kcalloc(n_subdevs, sizeof(struct pcmmio_subdev_private),
 		    GFP_KERNEL);
 	if (!devpriv->sprivs) {
-		printk(KERN_ERR "cannot allocate subdevice private data structures\n");
+		printk(KERN_ERR "comedi%d: cannot allocate subdevice private data structures\n",
+				dev->minor);
 		return -ENOMEM;
 	}
 	/*
@@ -427,7 +429,8 @@ static int pcmmio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	 * Allocate 1 AI + 1 AO + 2 DIO subdevs (24 lines per DIO)
 	 */
 	if (alloc_subdevices(dev, n_subdevs) < 0) {
-		printk(KERN_ERR "cannot allocate subdevice data structures\n");
+		printk(KERN_ERR "comedi%d: cannot allocate subdevice data structures\n",
+				dev->minor);
 		return -ENOMEM;
 	}
 
@@ -557,14 +560,15 @@ static int pcmmio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 				 */
 
 	if (irq[0]) {
-		printk(KERN_DEBUG "irq: %u ", irq[0]);
+		printk(KERN_DEBUG "comedi%d: irq: %u\n", dev->minor, irq[0]);
 		if (thisboard->dio_num_asics == 2 && irq[1])
-			printk(KERN_DEBUG "second ASIC irq: %u ", irq[1]);
+			printk(KERN_DEBUG "comedi%d: second ASIC irq: %u\n",
+					dev->minor, irq[1]);
 	} else {
-		printk(KERN_INFO "(IRQ mode disabled) ");
+		printk(KERN_INFO "comedi%d: (IRQ mode disabled)\n", dev->minor);
 	}
 
-	printk(KERN_INFO "attached\n");
+	printk(KERN_INFO "comedi%d: attached\n", dev->minor);
 
 	return 1;
 }
@@ -663,7 +667,7 @@ static int pcmmio_dio_insn_bits(struct comedi_device *dev,
 		}
 #ifdef DAMMIT_ITS_BROKEN
 		/* DEBUG */
-		printk(KERN_DEBUG "data_out_byte %02x\n", (unsigned)byte);
+		printk("data_out_byte %02x\n", (unsigned)byte);
 #endif
 		/* save the digital input lines for this byte.. */
 		s->state |= ((unsigned int)byte) << offset;
diff --git a/drivers/staging/comedi/drivers/pcmuio.c b/drivers/staging/comedi/drivers/pcmuio.c
index b2c2c8971a32..661ba2e03892 100644
--- a/drivers/staging/comedi/drivers/pcmuio.c
+++ b/drivers/staging/comedi/drivers/pcmuio.c
@@ -295,15 +295,15 @@ static int pcmuio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	irq[0] = it->options[1];
 	irq[1] = it->options[2];
 
-	printk("comedi%d: %s: io: %lx ", dev->minor, driver.driver_name,
-	       iobase);
+	dev_dbg(dev->hw_dev, "comedi%d: %s: io: %lx attached\n", dev->minor,
+		driver.driver_name, iobase);
 
 	dev->iobase = iobase;
 
 	if (!iobase || !request_region(iobase,
 				       thisboard->num_asics * ASIC_IOSIZE,
 				       driver.driver_name)) {
-		printk("I/O port conflict\n");
+		dev_err(dev->hw_dev, "I/O port conflict\n");
 		return -EIO;
 	}
 
@@ -318,7 +318,7 @@ static int pcmuio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
  * convenient macro defined in comedidev.h.
  */
 	if (alloc_private(dev, sizeof(struct pcmuio_private)) < 0) {
-		printk("cannot allocate private data structure\n");
+		dev_warn(dev->hw_dev, "cannot allocate private data structure\n");
 		return -ENOMEM;
 	}
 
@@ -337,7 +337,7 @@ static int pcmuio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	    kcalloc(n_subdevs, sizeof(struct pcmuio_subdev_private),
 		    GFP_KERNEL);
 	if (!devpriv->sprivs) {
-		printk("cannot allocate subdevice private data structures\n");
+		dev_warn(dev->hw_dev, "cannot allocate subdevice private data structures\n");
 		return -ENOMEM;
 	}
 	/*
@@ -348,7 +348,7 @@ static int pcmuio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 	 * 96-channel version of the board.
 	 */
 	if (alloc_subdevices(dev, n_subdevs) < 0) {
-		printk("cannot allocate subdevice data structures\n");
+		dev_dbg(dev->hw_dev, "cannot allocate subdevice data structures\n");
 		return -ENOMEM;
 	}
 
@@ -436,14 +436,13 @@ static int pcmuio_attach(struct comedi_device *dev, struct comedi_devconfig *it)
 				   irqs.. */
 
 	if (irq[0]) {
-		printk("irq: %u ", irq[0]);
+		dev_dbg(dev->hw_dev, "irq: %u\n", irq[0]);
 		if (irq[1] && thisboard->num_asics == 2)
-			printk("second ASIC irq: %u ", irq[1]);
+			dev_dbg(dev->hw_dev, "second ASIC irq: %u\n", irq[1]);
 	} else {
-		printk("(IRQ mode disabled) ");
+		dev_dbg(dev->hw_dev, "(IRQ mode disabled)\n");
 	}
 
-	printk("attached\n");
 
 	return 1;
 }
@@ -460,7 +459,8 @@ static int pcmuio_detach(struct comedi_device *dev)
 {
 	int i;
 
-	printk("comedi%d: %s: remove\n", dev->minor, driver.driver_name);
+	dev_dbg(dev->hw_dev, "comedi%d: %s: remove\n", dev->minor,
+		driver.driver_name);
 	if (dev->iobase)
 		release_region(dev->iobase, ASIC_IOSIZE * thisboard->num_asics);
 
@@ -501,7 +501,8 @@ static int pcmuio_dio_insn_bits(struct comedi_device *dev,
 
 #ifdef DAMMIT_ITS_BROKEN
 	/* DEBUG */
-	printk("write mask: %08x  data: %08x\n", data[0], data[1]);
+	dev_dbg(dev->hw_dev, "write mask: %08x  data: %08x\n", data[0],
+		data[1]);
 #endif
 
 	s->state = 0;
@@ -537,7 +538,7 @@ static int pcmuio_dio_insn_bits(struct comedi_device *dev,
 		}
 #ifdef DAMMIT_ITS_BROKEN
 		/* DEBUG */
-		printk("data_out_byte %02x\n", (unsigned)byte);
+		dev_dbg(dev->hw_dev, "data_out_byte %02x\n", (unsigned)byte);
 #endif
 		/* save the digital input lines for this byte.. */
 		s->state |= ((unsigned int)byte) << offset;
@@ -548,7 +549,8 @@ static int pcmuio_dio_insn_bits(struct comedi_device *dev,
 
 #ifdef DAMMIT_ITS_BROKEN
 	/* DEBUG */
-	printk("s->state %08x data_out %08x\n", s->state, data[1]);
+	dev_dbg(dev->hw_dev, "s->state %08x data_out %08x\n", s->state,
+		data[1]);
 #endif
 
 	return 2;
@@ -951,14 +953,13 @@ pcmuio_inttrig_start_intr(struct comedi_device *dev, struct comedi_subdevice *s,
 
 	spin_lock_irqsave(&subpriv->intr.spinlock, flags);
 	s->async->inttrig = 0;
-	if (subpriv->intr.active) {
+	if (subpriv->intr.active)
 		event = pcmuio_start_intr(dev, s);
-	}
+
 	spin_unlock_irqrestore(&subpriv->intr.spinlock, flags);
 
-	if (event) {
+	if (event)
 		comedi_event(dev, s);
-	}
 
 	return 1;
 }
@@ -1000,9 +1001,8 @@ static int pcmuio_cmd(struct comedi_device *dev, struct comedi_subdevice *s)
 	}
 	spin_unlock_irqrestore(&subpriv->intr.spinlock, flags);
 
-	if (event) {
+	if (event)
 		comedi_event(dev, s);
-	}
 
 	return 0;
 }
diff --git a/drivers/staging/comedi/drivers/serial2002.c b/drivers/staging/comedi/drivers/serial2002.c
index ade2202b6231..d880c2f6fbc1 100644
--- a/drivers/staging/comedi/drivers/serial2002.c
+++ b/drivers/staging/comedi/drivers/serial2002.c
@@ -824,7 +824,7 @@ static int serial2002_attach(struct comedi_device *dev,
 {
 	struct comedi_subdevice *s;
 
-	printk("comedi%d: serial2002: ", dev->minor);
+	dev_dbg(dev->hw_dev, "comedi%d: attached\n", dev->minor);
 	dev->board_name = thisboard->name;
 	if (alloc_private(dev, sizeof(struct serial2002_private)) < 0)
 		return -ENOMEM;
@@ -832,7 +832,8 @@ static int serial2002_attach(struct comedi_device *dev,
 	dev->close = serial_2002_close;
 	devpriv->port = it->options[0];
 	devpriv->speed = it->options[1];
-	printk("/dev/ttyS%d @ %d\n", devpriv->port, devpriv->speed);
+	dev_dbg(dev->hw_dev, "/dev/ttyS%d @ %d\n", devpriv->port,
+		devpriv->speed);
 
 	if (alloc_subdevices(dev, 5) < 0)
 		return -ENOMEM;
@@ -891,7 +892,7 @@ static int serial2002_detach(struct comedi_device *dev)
 	struct comedi_subdevice *s;
 	int i;
 
-	printk("comedi%d: serial2002: remove\n", dev->minor);
+	dev_dbg(dev->hw_dev, "comedi%d: remove\n", dev->minor);
 	for (i = 0; i < 5; i++) {
 		s = &dev->subdevices[i];
 		kfree(s->maxdata_list);
diff --git a/drivers/staging/comedi/drivers/usbduxsigma.c b/drivers/staging/comedi/drivers/usbduxsigma.c
index 6144afb8cbaa..ca6bcf8b0231 100644
--- a/drivers/staging/comedi/drivers/usbduxsigma.c
+++ b/drivers/staging/comedi/drivers/usbduxsigma.c
@@ -1524,15 +1524,17 @@ static int usbdux_ao_inttrig(struct comedi_device *dev,
 		return -EFAULT;
 
 	down(&this_usbduxsub->sem);
+
 	if (!(this_usbduxsub->probed)) {
-		up(&this_usbduxsub->sem);
-		return -ENODEV;
+		ret = -ENODEV;
+		goto out;
 	}
 	if (trignum != 0) {
 		dev_err(&this_usbduxsub->interface->dev,
 			"comedi%d: usbdux_ao_inttrig: invalid trignum\n",
 			dev->minor);
-		return -EINVAL;
+		ret = -EINVAL;
+		goto out;
 	}
 	if (!(this_usbduxsub->ao_cmd_running)) {
 		this_usbduxsub->ao_cmd_running = 1;
@@ -1542,8 +1544,7 @@ static int usbdux_ao_inttrig(struct comedi_device *dev,
 				"comedi%d: usbdux_ao_inttrig: submitURB: "
 				"err=%d\n", dev->minor, ret);
 			this_usbduxsub->ao_cmd_running = 0;
-			up(&this_usbduxsub->sem);
-			return ret;
+			goto out;
 		}
 		s->async->inttrig = NULL;
 	} else {
@@ -1551,8 +1552,10 @@ static int usbdux_ao_inttrig(struct comedi_device *dev,
 			"comedi%d: ao_inttrig but acqu is already running.\n",
 			dev->minor);
 	}
+	ret = 1;
+out:
 	up(&this_usbduxsub->sem);
-	return 1;
+	return ret;
 }
 
 static int usbdux_ao_cmdtest(struct comedi_device *dev,
@@ -2689,6 +2692,7 @@ static int usbduxsigma_attach(struct comedi_device *dev,
 	if (ret < 0) {
 		dev_err(&udev->interface->dev,
 			"comedi%d: no space for subdev\n", dev->minor);
+		up(&udev->sem);
 		up(&start_stop_sem);
 		return ret;
 	}
diff --git a/drivers/staging/crystalhd/bc_dts_defs.h b/drivers/staging/crystalhd/bc_dts_defs.h
index fde5b0627f6b..8cd51a7aad8e 100644
--- a/drivers/staging/crystalhd/bc_dts_defs.h
+++ b/drivers/staging/crystalhd/bc_dts_defs.h
@@ -296,43 +296,79 @@ enum {
 	vdecColourPrimariesSMPTE240M,
 	vdecColourPrimariesGenericFilm,
 };
-
+/**
+ * @vdecRESOLUTION_CUSTOM: custom
+ * @vdecRESOLUTION_480i: 480i
+ * @vdecRESOLUTION_1080i: 1080i (1920x1080, 60i)
+ * @vdecRESOLUTION_NTSC: NTSC (720x483, 60i)
+ * @vdecRESOLUTION_480p: 480p (720x480, 60p)
+ * @vdecRESOLUTION_720p: 720p (1280x720, 60p)
+ * @vdecRESOLUTION_PAL1: PAL_1 (720x576, 50i)
+ * @vdecRESOLUTION_1080i25: 1080i25 (1920x1080, 50i)
+ * @vdecRESOLUTION_720p50: 720p50 (1280x720, 50p)
+ * @vdecRESOLUTION_576p: 576p (720x576, 50p)
+ * @vdecRESOLUTION_1080i29_97: 1080i (1920x1080, 59.94i)
+ * @vdecRESOLUTION_720p59_94: 720p (1280x720, 59.94p)
+ * @vdecRESOLUTION_SD_DVD: SD DVD (720x483, 60i)
+ * @vdecRESOLUTION_480p656: 480p (720x480, 60p),
+ *	output bus width 8 bit, clock 74.25MHz
+ * @vdecRESOLUTION_1080p23_976: 1080p23_976 (1920x1080, 23.976p)
+ * @vdecRESOLUTION_720p23_976: 720p23_976 (1280x720p, 23.976p)
+ * @vdecRESOLUTION_240p29_97: 240p (1440x240, 29.97p )
+ * @vdecRESOLUTION_240p30: 240p (1440x240, 30p)
+ * @vdecRESOLUTION_288p25: 288p (1440x288p, 25p)
+ * @vdecRESOLUTION_1080p29_97: 1080p29_97 (1920x1080, 29.97p)
+ * @vdecRESOLUTION_1080p30: 1080p30 (1920x1080, 30p)
+ * @vdecRESOLUTION_1080p24: 1080p24 (1920x1080, 24p)
+ * @vdecRESOLUTION_1080p25: 1080p25 (1920x1080, 25p)
+ * @vdecRESOLUTION_720p24: 720p24 (1280x720, 25p)
+ * @vdecRESOLUTION_720p29_97: 720p29.97 (1280x720, 29.97p)
+ * @vdecRESOLUTION_480p23_976: 480p23.976 (720*480, 23.976)
+ * @vdecRESOLUTION_480p29_97: 480p29.976 (720*480, 29.97p)
+ * @vdecRESOLUTION_576p25: 576p25 (720*576, 25p)
+ * @vdecRESOLUTION_480p0: 480p (720x480, 0p)
+ * @vdecRESOLUTION_480i0: 480i (720x480, 0i)
+ * @vdecRESOLUTION_576p0: 576p (720x576, 0p)
+ * @vdecRESOLUTION_720p0: 720p (1280x720, 0p)
+ * @vdecRESOLUTION_1080p0: 1080p (1920x1080, 0p)
+ * @vdecRESOLUTION_1080i0: 1080i (1920x1080, 0i)
+ */
 enum {
-	vdecRESOLUTION_CUSTOM	= 0x00000000, /* custom */
-	vdecRESOLUTION_480i	= 0x00000001, /* 480i */
-	vdecRESOLUTION_1080i	= 0x00000002, /* 1080i (1920x1080, 60i) */
-	vdecRESOLUTION_NTSC	= 0x00000003, /* NTSC (720x483, 60i) */
-	vdecRESOLUTION_480p	= 0x00000004, /* 480p (720x480, 60p) */
-	vdecRESOLUTION_720p	= 0x00000005, /* 720p (1280x720, 60p) */
-	vdecRESOLUTION_PAL1	= 0x00000006, /* PAL_1 (720x576, 50i) */
-	vdecRESOLUTION_1080i25	= 0x00000007, /* 1080i25 (1920x1080, 50i) */
-	vdecRESOLUTION_720p50	= 0x00000008, /* 720p50 (1280x720, 50p) */
-	vdecRESOLUTION_576p	= 0x00000009, /* 576p (720x576, 50p) */
-	vdecRESOLUTION_1080i29_97 = 0x0000000A, /* 1080i (1920x1080, 59.94i) */
-	vdecRESOLUTION_720p59_94  = 0x0000000B, /* 720p (1280x720, 59.94p) */
-	vdecRESOLUTION_SD_DVD	= 0x0000000C, /* SD DVD (720x483, 60i) */
-	vdecRESOLUTION_480p656	= 0x0000000D, /* 480p (720x480, 60p), output bus width 8 bit, clock 74.25MHz */
-	vdecRESOLUTION_1080p23_976 = 0x0000000E, /* 1080p23_976 (1920x1080, 23.976p) */
-	vdecRESOLUTION_720p23_976  = 0x0000000F, /* 720p23_976 (1280x720p, 23.976p) */
-	vdecRESOLUTION_240p29_97   = 0x00000010, /* 240p (1440x240, 29.97p ) */
-	vdecRESOLUTION_240p30	= 0x00000011, /* 240p (1440x240, 30p) */
-	vdecRESOLUTION_288p25	= 0x00000012, /* 288p (1440x288p, 25p) */
-	vdecRESOLUTION_1080p29_97 = 0x00000013, /* 1080p29_97 (1920x1080, 29.97p) */
-	vdecRESOLUTION_1080p30	= 0x00000014, /* 1080p30 (1920x1080, 30p) */
-	vdecRESOLUTION_1080p24	= 0x00000015, /* 1080p24 (1920x1080, 24p) */
-	vdecRESOLUTION_1080p25	= 0x00000016, /* 1080p25 (1920x1080, 25p) */
-	vdecRESOLUTION_720p24	= 0x00000017, /* 720p24 (1280x720, 25p) */
-	vdecRESOLUTION_720p29_97  = 0x00000018, /* 720p29.97 (1280x720, 29.97p) */
-	vdecRESOLUTION_480p23_976 = 0x00000019, /* 480p23.976 (720*480, 23.976) */
-	vdecRESOLUTION_480p29_97  = 0x0000001A, /* 480p29.976 (720*480, 29.97p) */
-	vdecRESOLUTION_576p25	= 0x0000001B, /* 576p25 (720*576, 25p) */
+	vdecRESOLUTION_CUSTOM	= 0x00000000,
+	vdecRESOLUTION_480i	= 0x00000001,
+	vdecRESOLUTION_1080i	= 0x00000002,
+	vdecRESOLUTION_NTSC	= 0x00000003,
+	vdecRESOLUTION_480p	= 0x00000004,
+	vdecRESOLUTION_720p	= 0x00000005,
+	vdecRESOLUTION_PAL1	= 0x00000006,
+	vdecRESOLUTION_1080i25	= 0x00000007,
+	vdecRESOLUTION_720p50	= 0x00000008,
+	vdecRESOLUTION_576p	= 0x00000009,
+	vdecRESOLUTION_1080i29_97 = 0x0000000A,
+	vdecRESOLUTION_720p59_94  = 0x0000000B,
+	vdecRESOLUTION_SD_DVD	= 0x0000000C,
+	vdecRESOLUTION_480p656	= 0x0000000D,
+	vdecRESOLUTION_1080p23_976 = 0x0000000E,
+	vdecRESOLUTION_720p23_976  = 0x0000000F,
+	vdecRESOLUTION_240p29_97   = 0x00000010,
+	vdecRESOLUTION_240p30	= 0x00000011,
+	vdecRESOLUTION_288p25	= 0x00000012,
+	vdecRESOLUTION_1080p29_97 = 0x00000013,
+	vdecRESOLUTION_1080p30	= 0x00000014,
+	vdecRESOLUTION_1080p24	= 0x00000015,
+	vdecRESOLUTION_1080p25	= 0x00000016,
+	vdecRESOLUTION_720p24	= 0x00000017,
+	vdecRESOLUTION_720p29_97  = 0x00000018,
+	vdecRESOLUTION_480p23_976 = 0x00000019,
+	vdecRESOLUTION_480p29_97  = 0x0000001A,
+	vdecRESOLUTION_576p25	= 0x0000001B,
 	/* For Zero Frame Rate */
-	vdecRESOLUTION_480p0	= 0x0000001C, /* 480p (720x480, 0p) */
-	vdecRESOLUTION_480i0	= 0x0000001D, /* 480i (720x480, 0i) */
-	vdecRESOLUTION_576p0	= 0x0000001E, /* 576p (720x576, 0p) */
-	vdecRESOLUTION_720p0	= 0x0000001F, /* 720p (1280x720, 0p) */
-	vdecRESOLUTION_1080p0	= 0x00000020, /* 1080p (1920x1080, 0p) */
-	vdecRESOLUTION_1080i0	= 0x00000021, /* 1080i (1920x1080, 0i) */
+	vdecRESOLUTION_480p0	= 0x0000001C,
+	vdecRESOLUTION_480i0	= 0x0000001D,
+	vdecRESOLUTION_576p0	= 0x0000001E,
+	vdecRESOLUTION_720p0	= 0x0000001F,
+	vdecRESOLUTION_1080p0	= 0x00000020,
+	vdecRESOLUTION_1080i0	= 0x00000021,
 };
 
 /* Bit definitions for 'flags' field */
@@ -359,14 +395,23 @@ enum _BC_OUTPUT_FORMAT {
 	MODE422_YUY2			= 0x1,
 	MODE422_UYVY			= 0x2,
 };
-
+/**
+ * struct BC_PIC_INFO_BLOCK
+ * @timeStam;: Timestamp
+ * @picture_number: Ordinal display number
+ * @width:  pixels
+ * @height:  pixels
+ * @chroma_format:  0x420, 0x422 or 0x444
+ * @n_drop;:  number of non-reference frames
+ *	remaining to be dropped
+ */
 struct BC_PIC_INFO_BLOCK {
 	/* Common fields. */
-	uint64_t	timeStamp;	/* Timestamp */
-	uint32_t	picture_number;	/* Ordinal display number  */
-	uint32_t	width;		/* pixels	    */
-	uint32_t	height;		/* pixels	    */
-	uint32_t	chroma_format;	/* 0x420, 0x422 or 0x444 */
+	uint64_t	timeStamp;
+	uint32_t	picture_number;
+	uint32_t	width;
+	uint32_t	height;
+	uint32_t	chroma_format;
 	uint32_t	pulldown;
 	uint32_t	flags;
 	uint32_t	frame_rate;
@@ -376,7 +421,8 @@ struct BC_PIC_INFO_BLOCK {
 	uint32_t	sess_num;
 	uint32_t	ycom;
 	uint32_t	custom_aspect_ratio_width_height;
-	uint32_t	n_drop;	/* number of non-reference frames remaining to be dropped */
+	uint32_t	n_drop;	/* number of non-reference frames
+					remaining to be dropped */
 
 	/* Protocol-specific extensions. */
 	union {
@@ -390,43 +436,71 @@ struct BC_PIC_INFO_BLOCK {
 /*------------------------------------------------------*
  *    ProcOut Info					*
  *------------------------------------------------------*/
-/* Optional flags for ProcOut Interface.*/
+
+/**
+ * enum POUT_OPTIONAL_IN_FLAGS - Optional flags for ProcOut Interface.
+ * @BC_POUT_FLAGS_YV12:  Copy Data in YV12 format
+ * @BC_POUT_FLAGS_STRIDE:  Stride size is valid.
+ * @BC_POUT_FLAGS_SIZE:  Take size information from Application
+ * @BC_POUT_FLAGS_INTERLACED:  copy only half the bytes
+ * @BC_POUT_FLAGS_INTERLEAVED:  interleaved frame
+ * @:  * @BC_POUT_FLAGS_FMT_CHANGE:  Data is not VALID when this flag is set
+ * @BC_POUT_FLAGS_PIB_VALID:  PIB Information valid
+ * @BC_POUT_FLAGS_ENCRYPTED:  Data is encrypted.
+ * @BC_POUT_FLAGS_FLD_BOT:  Bottom Field data
+ */
 enum POUT_OPTIONAL_IN_FLAGS_ {
 	/* Flags from App to Device */
-	BC_POUT_FLAGS_YV12	  = 0x01,	/* Copy Data in YV12 format */
-	BC_POUT_FLAGS_STRIDE	  = 0x02,	/* Stride size is valid. */
-	BC_POUT_FLAGS_SIZE	  = 0x04,	/* Take size information from Application */
-	BC_POUT_FLAGS_INTERLACED  = 0x08,	/* copy only half the bytes */
-	BC_POUT_FLAGS_INTERLEAVED = 0x10,	/* interleaved frame */
+	BC_POUT_FLAGS_YV12	  = 0x01,
+	BC_POUT_FLAGS_STRIDE	  = 0x02,
+	BC_POUT_FLAGS_SIZE	  = 0x04,
+	BC_POUT_FLAGS_INTERLACED  = 0x08,
+	BC_POUT_FLAGS_INTERLEAVED = 0x10,
 
 	/* Flags from Device to APP */
-	BC_POUT_FLAGS_FMT_CHANGE  = 0x10000,	/* Data is not VALID when this flag is set */
-	BC_POUT_FLAGS_PIB_VALID	  = 0x20000,	/* PIB Information valid */
-	BC_POUT_FLAGS_ENCRYPTED	  = 0x40000,	/* Data is encrypted. */
-	BC_POUT_FLAGS_FLD_BOT	  = 0x80000,	/* Bottom Field data */
+	BC_POUT_FLAGS_FMT_CHANGE  = 0x10000,
+	BC_POUT_FLAGS_PIB_VALID	  = 0x20000,
+	BC_POUT_FLAGS_ENCRYPTED	  = 0x40000,
+	BC_POUT_FLAGS_FLD_BOT	  = 0x80000,
 };
 
-typedef enum BC_STATUS(*dts_pout_callback)(void  *shnd, uint32_t width, uint32_t height, uint32_t stride, void *pOut);
+typedef enum BC_STATUS(*dts_pout_callback)(void  *shnd, uint32_t width,
+			uint32_t height, uint32_t stride, void *pOut);
 
 /* Line 21 Closed Caption */
 /* User Data */
 #define MAX_UD_SIZE		1792	/* 1920 - 128 */
 
+/**
+ * struct BC_DTS_PROC_OUT
+ * @Ybuff: Caller Supplied buffer for Y data
+ * @YbuffSz: Caller Supplied Y buffer size
+ * @YBuffDoneSz: Transferred Y datasize
+ * @*UVbuff: Caller Supplied buffer for UV data
+ * @UVbuffSz: Caller Supplied UV buffer size
+ * @UVBuffDoneSz: Transferred UV data size
+ * @StrideSz: Caller supplied Stride Size
+ * @PoutFlags: Call IN Flags
+ * @discCnt: Picture discontinuity count
+ * @PicInfo: Picture Information Block Data
+ * @b422Mode: Picture output Mode
+ * @bPibEnc: PIB encrypted
+ */
 struct BC_DTS_PROC_OUT {
-	uint8_t		*Ybuff;			/* Caller Supplied buffer for Y data */
-	uint32_t	YbuffSz;		/* Caller Supplied Y buffer size */
-	uint32_t	YBuffDoneSz;		/* Transferred Y datasize */
+	uint8_t		*Ybuff;
+	uint32_t	YbuffSz;
+	uint32_t	YBuffDoneSz;
 
-	uint8_t		*UVbuff;		/* Caller Supplied buffer for UV data */
-	uint32_t	UVbuffSz;		/* Caller Supplied UV buffer size */
-	uint32_t	UVBuffDoneSz;		/* Transferred UV data size */
+	uint8_t		*UVbuff;
+	uint32_t	UVbuffSz;
+	uint32_t	UVBuffDoneSz;
 
-	uint32_t	StrideSz;		/* Caller supplied Stride Size */
-	uint32_t	PoutFlags;		/* Call IN Flags */
+	uint32_t	StrideSz;
+	uint32_t	PoutFlags;
 
-	uint32_t	discCnt;		/* Picture discontinuity count */
+	uint32_t	discCnt;
 
-	struct BC_PIC_INFO_BLOCK PicInfo;		/* Picture Information Block Data */
+	struct BC_PIC_INFO_BLOCK PicInfo;
 
 	/* Line 21 Closed Caption */
 	/* User Data */
@@ -436,39 +510,47 @@ struct BC_DTS_PROC_OUT {
 	void		*hnd;
 	dts_pout_callback AppCallBack;
 	uint8_t		DropFrames;
-	uint8_t		b422Mode;		/* Picture output Mode */
-	uint8_t		bPibEnc;		/* PIB encrypted */
+	uint8_t		b422Mode;
+	uint8_t		bPibEnc;
 	uint8_t		bRevertScramble;
 
 };
-
+/**
+ * struct BC_DTS_STATUS
+ * @ReadyListCount: Number of frames in ready list (reported by driver)
+ * @PowerStateChange: Number of active state power
+ *	transitions (reported by driver)
+ * @FramesDropped:  Number of frames dropped.  (reported by DIL)
+ * @FramesCaptured: Number of frames captured. (reported by DIL)
+ * @FramesRepeated: Number of frames repeated. (reported by DIL)
+ * @InputCount:	Times compressed video has been sent to the HW.
+ *	i.e. Successful DtsProcInput() calls (reported by DIL)
+ * @InputTotalSize: Amount of compressed video that has been sent to the HW.
+ *	(reported by DIL)
+ * @InputBusyCount: Times compressed video has attempted to be sent to the HW
+ *	but the input FIFO was full. (reported by DIL)
+ * @PIBMissCount: Amount of times a PIB is invalid. (reported by DIL)
+ * @cpbEmptySize: supported only for H.264, specifically changed for
+ *	Adobe. Report size of CPB buffer available. (reported by DIL)
+ * @NextTimeStamp: TimeStamp of the next picture that will be returned
+ *	by a call to ProcOutput. Added for Adobe. Reported
+ *	back from the driver
+ */
 struct BC_DTS_STATUS {
-	uint8_t		ReadyListCount;	/* Number of frames in ready list (reported by driver) */
-	uint8_t		FreeListCount;	/* Number of frame buffers free.  (reported by driver) */
-	uint8_t		PowerStateChange; /* Number of active state power transitions (reported by driver) */
+	uint8_t		ReadyListCount;
+	uint8_t		FreeListCount;
+	uint8_t		PowerStateChange;
 	uint8_t		reserved_[1];
-
-	uint32_t	FramesDropped;	/* Number of frames dropped.  (reported by DIL) */
-	uint32_t	FramesCaptured;	/* Number of frames captured. (reported by DIL) */
-	uint32_t	FramesRepeated;	/* Number of frames repeated. (reported by DIL) */
-
-	uint32_t	InputCount;	/* Times compressed video has been sent to the HW.
-					 * i.e. Successful DtsProcInput() calls (reported by DIL) */
-	uint64_t	InputTotalSize;	/* Amount of compressed video that has been sent to the HW.
-					 * (reported by DIL) */
-	uint32_t	InputBusyCount;	/* Times compressed video has attempted to be sent to the HW
-					 * but the input FIFO was full. (reported by DIL) */
-
-	uint32_t	PIBMissCount;	/* Amount of times a PIB is invalid. (reported by DIL) */
-
-	uint32_t	cpbEmptySize;	/* supported only for H.264, specifically changed for
-					 * Adobe. Report size of CPB buffer available.
-					 * Reported by DIL */
-	uint64_t	NextTimeStamp;	/* TimeStamp of the next picture that will be returned
-					 * by a call to ProcOutput. Added for Adobe. Reported
-					 * back from the driver */
+	uint32_t	FramesDropped;
+	uint32_t	FramesCaptured;
+	uint32_t	FramesRepeated;
+	uint32_t	InputCount;
+	uint64_t	InputTotalSize;
+	uint32_t	InputBusyCount;
+	uint32_t	PIBMissCount;
+	uint32_t	cpbEmptySize;
+	uint64_t	NextTimeStamp;
 	uint8_t		reserved__[16];
-
 };
 
 #define BC_SWAP32(_v)			\
diff --git a/drivers/staging/cxt1e1/comet.h b/drivers/staging/cxt1e1/comet.h
index 5cb3afda0112..e06da4a6f6f6 100644
--- a/drivers/staging/cxt1e1/comet.h
+++ b/drivers/staging/cxt1e1/comet.h
@@ -1,7 +1,3 @@
-/*
- * $Id: comet.h,v 1.3 2005/09/28 00:10:07 rickd PMCC4_3_1B $
- */
-
 #ifndef _INC_COMET_H_
 #define _INC_COMET_H_
 
@@ -23,27 +19,9 @@
  * For further information, contact via email: support@sbei.com
  * SBE, Inc.  San Ramon, California  U.S.A.
  *-----------------------------------------------------------------------------
- * RCS info:
- * RCS revision: $Revision: 1.3 $
- * Last changed on $Date: 2005/09/28 00:10:07 $
- * Changed by $Author: rickd $
- *-----------------------------------------------------------------------------
- * $Log: comet.h,v $
- * Revision 1.3  2005/09/28 00:10:07  rickd
- * Add RCS header. Switch to structure usage.
- *
- * Revision 1.2  2005/04/28 23:43:03  rickd
- * Add RCS tracking heading.
- *
- *-----------------------------------------------------------------------------
  */
 
-#if defined(__FreeBSD__) || defined (__NetBSD__)
-#include <sys/types.h>
-#else
 #include <linux/types.h>
-#endif
-
 
 #define VINT32  volatile u_int32_t
 
diff --git a/drivers/staging/cxt1e1/comet_tables.c b/drivers/staging/cxt1e1/comet_tables.c
index db1293c71a6d..84931117da35 100644
--- a/drivers/staging/cxt1e1/comet_tables.c
+++ b/drivers/staging/cxt1e1/comet_tables.c
@@ -1,7 +1,3 @@
-/*
- * $Id: comet_tables.c,v 1.2 2005/10/17 23:55:27 rickd PMCC4_3_1B $
- */
-
 /*-----------------------------------------------------------------------------
  * comet_tables.c - waveform tables for the PM4351 'COMET'
  *
@@ -20,28 +16,8 @@
  * For further information, contact via email: support@sbei.com
  * SBE, Inc.  San Ramon, California  U.S.A.
  *-----------------------------------------------------------------------------
- * RCS info:
- * RCS revision: $Revision: 1.2 $
- * Last changed on $Date: 2005/10/17 23:55:27 $
- * Changed by $Author: rickd $
- *-----------------------------------------------------------------------------
- * $Log: comet_tables.c,v $
- * Revision 1.2  2005/10/17 23:55:27  rickd
- * Note that 75 Ohm transmit waveform is not supported on PMCC4.
- *
- * Revision 1.1  2005/09/28 00:10:05  rickd
- * Cosmetic alignment of tables for readability.
- *
- * Revision 1.0  2005/05/10 22:47:53  rickd
- * Initial revision
- *
- *-----------------------------------------------------------------------------
  */
 
-char SBEid_pmcc4_comet_tblc[] =
-  "@(#)comet_tables.c - $Revision: 1.2 $      (c) Copyright 2004-2005 SBE, Inc.";
-
-
 #include <linux/types.h>
 
 /*****************************************************************************
diff --git a/drivers/staging/cxt1e1/comet_tables.h b/drivers/staging/cxt1e1/comet_tables.h
index 80424a26a169..3e2e5badf787 100644
--- a/drivers/staging/cxt1e1/comet_tables.h
+++ b/drivers/staging/cxt1e1/comet_tables.h
@@ -1,7 +1,3 @@
-/*
- * $Id: comet_tables.h,v 1.5 2006/01/02 22:37:31 rickd PMCC4_3_1B $
- */
-
 #ifndef _INC_COMET_TBLS_H_
 #define _INC_COMET_TBLS_H_
 
@@ -23,26 +19,6 @@
  * For further information, contact via email: support@sbei.com
  * SBE, Inc.  San Ramon, California  U.S.A.
  *-----------------------------------------------------------------------------
- * RCS info:
- * RCS revision: $Revision: 1.5 $
- * Last changed on $Date: 2006/01/02 22:37:31 $
- * Changed by $Author: rickd $
- *-----------------------------------------------------------------------------
- * $Log: comet_tables.h,v $
- * Revision 1.5  2006/01/02 22:37:31  rickd
- * Double indexed arrays need sizings to avoid CC errors under
- * gcc 4.0.0
- *
- * Revision 1.4  2005/10/17 23:55:28  rickd
- * The 75 Ohm transmit waveform is not supported on PMCC4.
- *
- * Revision 1.3  2005/09/28 00:10:08  rickd
- * Add GNU License info. Structures moved to -C- file.
- *
- * Revision 1.2  2005/04/28 23:43:04  rickd
- * Add RCS tracking heading.
- *
- *-----------------------------------------------------------------------------
  */
 
 
diff --git a/drivers/staging/cxt1e1/libsbew.h b/drivers/staging/cxt1e1/libsbew.h
index ae8f06d05bed..4254c0426db9 100644
--- a/drivers/staging/cxt1e1/libsbew.h
+++ b/drivers/staging/cxt1e1/libsbew.h
@@ -1,7 +1,3 @@
-/*
- * $Id: libsbew.h,v 2.1 2005/10/27 18:54:19 rickd PMCC4_3_1B $
- */
-
 #ifndef _INC_LIBSBEW_H_
 #define _INC_LIBSBEW_H_
 
@@ -25,32 +21,8 @@
  * For further information, contact via email: support@sbei.com
  * SBE, Inc.  San Ramon, California  U.S.A.
  *-----------------------------------------------------------------------------
- * RCS info:
- * RCS revision: $Revision: 2.1 $
- * Last changed on $Date: 2005/10/27 18:54:19 $
- * Changed by $Author: rickd $
- *-----------------------------------------------------------------------------
- * $Log: libsbew.h,v $
- * Revision 2.1  2005/10/27 18:54:19  rickd
- * Add E1PLAIN support.
- *
- * Revision 2.0  2005/09/28 00:10:08  rickd
- * Customized for PMCC4 comet-per-port design.
- *
- * Revision 1.15  2005/03/29 00:51:31  rickd
- * File imported from C1T3 port, Revision 1.15
- *-----------------------------------------------------------------------------
  */
 
-#ifndef __KERNEL__
-#include <sys/types.h>
-#endif
-
-#ifdef __cplusplus
-extern      "C"
-{
-#endif
-
 /********************************/
 /**  set driver logging level  **/
 /********************************/
@@ -574,8 +546,4 @@ struct sbecom_port_param
     extern int  wancfg_set_tsioc (wcfg_t *, struct wanc1t3_ts_param *);
 #endif
 
-#ifdef __cplusplus
-}
-#endif
-
 #endif                          /*** _INC_LIBSBEW_H_ ***/
diff --git a/drivers/staging/cxt1e1/musycc.c b/drivers/staging/cxt1e1/musycc.c
index 5cc3423a6646..90c0f1e30f65 100644
--- a/drivers/staging/cxt1e1/musycc.c
+++ b/drivers/staging/cxt1e1/musycc.c
@@ -1,7 +1,3 @@
-/*
- * $Id: musycc.c,v 2.1 2007/08/15 23:32:17 rickd PMCC4_3_1B $
- */
-
 unsigned int max_intcnt = 0;
 unsigned int max_bh = 0;
 
@@ -24,53 +20,8 @@ unsigned int max_bh = 0;
  * For further information, contact via email: support@onestopsystems.com
  * One Stop Systems, Inc.  Escondido, California  U.S.A.
  *-----------------------------------------------------------------------------
- * RCS info:
- * RCS revision: $Revision: 2.1 $
- * Last changed on $Date: 2007/08/15 23:32:17 $
- * Changed by $Author: rickd $
- *-----------------------------------------------------------------------------
- * $Log: musycc.c,v $
- * Revision 2.1  2007/08/15 23:32:17  rickd
- * Use 'if 0' instead of GNU comment delimeter to avoid line wrap induced compiler errors.
- *
- * Revision 2.0  2007/08/15 22:13:20  rickd
- * Update to printf pointer %p usage and correct some UINT to ULONG for
- * 64bit comptibility.
- *
- * Revision 1.7  2006/04/21 00:56:40  rickd
- * workqueue files now prefixed with <sbecom> prefix.
- *
- * Revision 1.6  2005/10/27 18:54:19  rickd
- * Clean out old code.  Default to HDLC_FCS16, not TRANS.
- *
- * Revision 1.5  2005/10/17 23:55:28  rickd
- * Initial port of NCOMM support patches from original work found
- * in pmc_c4t1e1 as updated by NCOMM.  Ref: CONFIG_SBE_PMCC4_NCOMM.
- *
- * Revision 1.4  2005/10/13 20:35:25  rickd
- * Cleanup warning for unused <flags> variable.
- *
- * Revision 1.3  2005/10/13 19:19:22  rickd
- * Disable redundant driver removal cleanup code.
- *
- * Revision 1.2  2005/10/11 18:36:16  rickd
- * Clean up warning messages caused by de-implemented some <flags> associated
- * with spin_lock() removals.
- *
- * Revision 1.1  2005/10/05 00:45:28  rickd
- * Re-enable xmit on flow-controlled and full channel to fix restart hang.
- * Add some temp spin-lock debug code (rld_spin_owner).
- *
- * Revision 1.0  2005/09/28 00:10:06  rickd
- * Initial release for C4T1E1 support. Lots of transparent
- * mode updates.
- *
- *-----------------------------------------------------------------------------
  */
 
-char        SBEid_pmcc4_musyccc[] =
-"@(#)musycc.c - $Revision: 2.1 $      (c) Copyright 2004-2006 SBE, Inc.";
-
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
 #include <linux/types.h>
diff --git a/drivers/staging/cxt1e1/musycc.h b/drivers/staging/cxt1e1/musycc.h
index 68f3660f4477..cf6b54e15689 100644
--- a/drivers/staging/cxt1e1/musycc.h
+++ b/drivers/staging/cxt1e1/musycc.h
@@ -1,7 +1,3 @@
-/*
- * $Id: musycc.h,v 1.3 2005/09/28 00:10:08 rickd PMCC4_3_1B $
- */
-
 #ifndef _INC_MUSYCC_H_
 #define _INC_MUSYCC_H_
 
@@ -24,36 +20,13 @@
  * For further information, contact via email: support@sbei.com
  * SBE, Inc.  San Ramon, California  U.S.A.
  *-----------------------------------------------------------------------------
- * RCS info:
- * RCS revision: $Revision: 1.3 $
- * Last changed on $Date: 2005/09/28 00:10:08 $
- * Changed by $Author: rickd $
- *-----------------------------------------------------------------------------
- * $Log: musycc.h,v $
- * Revision 1.3  2005/09/28 00:10:08  rickd
- * Add GNU license info. Add PMCC4 PCI/DevIDs.  Implement new
- * musycc reg&bits namings. Use PORTMAP_0 GCD grouping.
- *
- * Revision 1.2  2005/04/28 23:43:04  rickd
- * Add RCS tracking heading.
- *
- *-----------------------------------------------------------------------------
  */
 
-#if defined (__FreeBSD__) || defined (__NetBSD__)
-#include <sys/types.h>
-#else
 #include <linux/types.h>
-#endif
 
 #define VINT8   volatile u_int8_t
 #define VINT32  volatile u_int32_t
 
-#ifdef __cplusplus
-extern      "C"
-{
-#endif
-
 #include "pmcc4_defs.h"
 
 
@@ -448,10 +421,6 @@ extern      "C"
 /*  This must be defined on an entire channel group (Port) basis */
 #define SUERM_THRESHOLD     0x1f
 
-#ifdef __cplusplus
-}
-#endif
-
 #undef VINT32
 #undef VINT8
 
diff --git a/drivers/staging/cxt1e1/ossiRelease.c b/drivers/staging/cxt1e1/ossiRelease.c
index a56029866c2d..f17a902e95e3 100644
--- a/drivers/staging/cxt1e1/ossiRelease.c
+++ b/drivers/staging/cxt1e1/ossiRelease.c
@@ -1,7 +1,3 @@
-/*
- * $Id: ossiRelease.c,v 1.2 2008/05/08 20:14:03 rdobbs PMCC4_3_1B $
- */
-
 /*-----------------------------------------------------------------------------
  * ossiRelease.c -
  *
@@ -26,14 +22,8 @@
  * One Stop Systems, Inc.  Escondido, California  U.S.A.
  *
  *-----------------------------------------------------------------------------
- * RCS info:
- * RCS revision: $Revision: 1.2 $
- * Last changed on $Date: 2008/05/08 20:14:03 $
- * Changed by $Author: rdobbs $
- *-----------------------------------------------------------------------------
  */
 
-
 char pmcc4_OSSI_release[] = "$Release: PMCC4_3_1B,  Copyright (c) 2008 One Stop Systems$";
 
 /***  End-of-File  ***/
diff --git a/drivers/staging/cxt1e1/pmc93x6_eeprom.h b/drivers/staging/cxt1e1/pmc93x6_eeprom.h
index c3ada87efd26..96c48cb83260 100644
--- a/drivers/staging/cxt1e1/pmc93x6_eeprom.h
+++ b/drivers/staging/cxt1e1/pmc93x6_eeprom.h
@@ -1,7 +1,3 @@
-/*
- * $Id: pmc93x6_eeprom.h,v 1.1 2005/09/28 00:10:08 rickd PMCC4_3_1B $
- */
-
 #ifndef _INC_PMC93X6_EEPROM_H_
 #define _INC_PMC93X6_EEPROM_H_
 
@@ -23,26 +19,9 @@
  * For further information, contact via email: support@sbei.com
  * SBE, Inc.  San Ramon, California  U.S.A.
  *-----------------------------------------------------------------------------
- * RCS info:
- *-----------------------------------------------------------------------------
- * $Log: pmc93x6_eeprom.h,v $
- * Revision 1.1  2005/09/28 00:10:08  rickd
- * pmc_verify_cksum return value is char.
- *
- * Revision 1.0  2005/05/04 17:20:51  rickd
- * Initial revision
- *
- * Revision 1.0  2005/04/22 23:48:48  rickd
- * Initial revision
- *
- *-----------------------------------------------------------------------------
  */
 
-#if defined (__FreeBSD__) || defined (__NetBSD__)
-#include <sys/types.h>
-#else
 #include <linux/types.h>
-#endif
 
 #ifdef __KERNEL__
 
diff --git a/drivers/staging/cxt1e1/pmcc4.h b/drivers/staging/cxt1e1/pmcc4.h
index e046b87763a2..b0ed4ad13011 100644
--- a/drivers/staging/cxt1e1/pmcc4.h
+++ b/drivers/staging/cxt1e1/pmcc4.h
@@ -1,7 +1,3 @@
-/*
- * $Id: pmcc4.h,v 1.4 2005/11/01 19:24:48 rickd PMCC4_3_1B $
- */
-
 #ifndef _INC_PMCC4_H_
 #define _INC_PMCC4_H_
 
@@ -23,49 +19,15 @@
  * For further information, contact via email: support@sbei.com
  * SBE, Inc.  San Ramon, California  U.S.A.
  *-----------------------------------------------------------------------------
- * RCS info:
- * RCS revision: $Revision: 1.4 $
- * Last changed on $Date: 2005/11/01 19:24:48 $
- * Changed by $Author: rickd $
- *-----------------------------------------------------------------------------
- * $Log: pmcc4.h,v $
- * Revision 1.4  2005/11/01 19:24:48  rickd
- * Remove de-implement function prototypes.  Several <int> to
- * <status_t> changes for consistent usage of same.
- *
- * Revision 1.3  2005/09/28 00:10:08  rickd
- * Add GNU license info. Use config params from libsbew.h
- *
- * Revision 1.2  2005/04/28 23:43:03  rickd
- * Add RCS tracking heading.
- *
- *-----------------------------------------------------------------------------
  */
 
-
-#if defined(__FreeBSD__) || defined(__NetBSD__)
-#include <sys/types.h>
-#else
-#ifndef __KERNEL__
-#include <sys/types.h>
-#else
 #include <linux/types.h>
-#endif
-#endif
-
-
 
 typedef int status_t;
 
 #define SBE_DRVR_FAIL     0
 #define SBE_DRVR_SUCCESS  1
 
-#ifdef __cplusplus
-extern      "C"
-{
-#endif
-
-
 /********************/
 /* PMCC4 memory Map */
 /********************/
@@ -105,10 +67,6 @@ extern      "C"
 #define sbeE1errSMF    0x02
 #define sbeE1CRC       0x01
 
-#ifdef __cplusplus
-}
-#endif
-
 #ifdef __KERNEL__
 
 /*
diff --git a/drivers/staging/cxt1e1/pmcc4_cpld.h b/drivers/staging/cxt1e1/pmcc4_cpld.h
index 6d8f0337aa3e..a51209bc5274 100644
--- a/drivers/staging/cxt1e1/pmcc4_cpld.h
+++ b/drivers/staging/cxt1e1/pmcc4_cpld.h
@@ -1,7 +1,3 @@
-/*
- * $Id: pmcc4_cpld.h,v 1.0 2005/09/28 00:10:08 rickd PMCC4_3_1B $
- */
-
 #ifndef _INC_PMCC4_CPLD_H_
 #define _INC_PMCC4_CPLD_H_
 
@@ -23,34 +19,9 @@
  * For further information, contact via email: support@sbei.com
  * SBE, Inc.  San Ramon, California  U.S.A.
  *-----------------------------------------------------------------------------
- * RCS info:
- * RCS revision: $Revision: 1.0 $
- * Last changed on $Date: 2005/09/28 00:10:08 $
- * Changed by $Author: rickd $
- *-----------------------------------------------------------------------------
- * $Log: pmcc4_cpld.h,v $
- * Revision 1.0  2005/09/28 00:10:08  rickd
- * Initial revision
- *
- *-----------------------------------------------------------------------------
  */
 
-
-#if defined(__FreeBSD__) || defined(__NetBSD__)
-#include <sys/types.h>
-#else
-#ifndef __KERNEL__
-#include <sys/types.h>
-#else
 #include <linux/types.h>
-#endif
-#endif
-
-#ifdef __cplusplus
-extern      "C"
-{
-#endif
-
 
 /********************************/
 /* iSPLD control chip registers */
@@ -117,8 +88,4 @@ extern      "C"
 #define PMCC4_CPLD_INTR_CMT_3   0x04
 #define PMCC4_CPLD_INTR_CMT_4   0x08
 
-#ifdef __cplusplus
-}
-#endif
-
 #endif                          /* _INC_PMCC4_CPLD_H_ */
diff --git a/drivers/staging/cxt1e1/pmcc4_defs.h b/drivers/staging/cxt1e1/pmcc4_defs.h
index a39505f45c29..83ceae4324b2 100644
--- a/drivers/staging/cxt1e1/pmcc4_defs.h
+++ b/drivers/staging/cxt1e1/pmcc4_defs.h
@@ -1,7 +1,3 @@
-/*
- * $Id: pmcc4_defs.h,v 1.0 2005/09/28 00:10:09 rickd PMCC4_3_1B $
- */
-
 #ifndef _INC_PMCC4_DEFS_H_
 #define _INC_PMCC4_DEFS_H_
 
@@ -25,16 +21,6 @@
  * For further information, contact via email: support@sbei.com
  * SBE, Inc.  San Ramon, California  U.S.A.
  *-----------------------------------------------------------------------------
- * RCS info:
- * RCS revision: $Revision: 1.0 $
- * Last changed on $Date: 2005/09/28 00:10:09 $
- * Changed by $Author: rickd $
- *-----------------------------------------------------------------------------
- * $Log: pmcc4_defs.h,v $
- * Revision 1.0  2005/09/28 00:10:09  rickd
- * Initial revision
- *
- *-----------------------------------------------------------------------------
  */
 
 
diff --git a/drivers/staging/cxt1e1/pmcc4_drv.c b/drivers/staging/cxt1e1/pmcc4_drv.c
index e1f07fabd22d..8a7b3a646451 100644
--- a/drivers/staging/cxt1e1/pmcc4_drv.c
+++ b/drivers/staging/cxt1e1/pmcc4_drv.c
@@ -1,8 +1,3 @@
-/*
- * $Id: pmcc4_drv.c,v 3.1 2007/08/15 23:32:17 rickd PMCC4_3_1B $
- */
-
-
 /*-----------------------------------------------------------------------------
  * pmcc4_drv.c -
  *
@@ -22,74 +17,10 @@
  * For further information, contact via email: support@onestopsystems.com
  * One Stop Systems, Inc.  Escondido, California  U.S.A.
  *-----------------------------------------------------------------------------
- * RCS info:
- * RCS revision: $Revision: 3.1 $
- * Last changed on $Date: 2007/08/15 23:32:17 $
- * Changed by $Author: rickd $
- *-----------------------------------------------------------------------------
- * $Log: pmcc4_drv.c,v $
- * Revision 3.1  2007/08/15 23:32:17  rickd
- * Use 'if 0' instead of GNU comment delimeter to avoid line wrap induced compiler errors.
- *
- * Revision 3.0  2007/08/15 22:19:55  rickd
- * Correct sizeof() castings and pi->regram to support 64bit compatibility.
- *
- * Revision 2.10  2006/04/21 00:56:40  rickd
- * workqueue files now prefixed with <sbecom> prefix.
- *
- * Revision 2.9  2005/11/01 19:22:49  rickd
- * Add sanity checks against max_port for ioctl functions.
- *
- * Revision 2.8  2005/10/27 18:59:25  rickd
- * Code cleanup.  Default channel config to HDLC_FCS16.
- *
- * Revision 2.7  2005/10/18 18:16:30  rickd
- * Further NCOMM code repairs - (1) interrupt matrix usage inconsistent
- * for indexing into nciInterrupt[][], code missing double parameters.
- * (2) check input of ncomm interrupt registration cardID for correct
- * boundary values.
- *
- * Revision 2.6  2005/10/17 23:55:28  rickd
- * Initial port of NCOMM support patches from original work found
- * in pmc_c4t1e1 as updated by NCOMM.  Ref: CONFIG_SBE_PMCC4_NCOMM.
- * Corrected NCOMMs wanpmcC4T1E1_getBaseAddress() to correctly handle
- * multiple boards.
- *
- * Revision 2.5  2005/10/13 23:01:28  rickd
- * Correct panic for illegal address reference w/in get_brdinfo on
- * first_if/last_if name acquistion under Linux 2.6
- *
- * Revision 2.4  2005/10/13 21:20:19  rickd
- * Correction of c4_cleanup() wherein next should be acquired before
- * ci_t structure is free'd.
- *
- * Revision 2.3  2005/10/13 19:20:10  rickd
- * Correct driver removal cleanup code for multiple boards.
- *
- * Revision 2.2  2005/10/11 18:34:04  rickd
- * New routine added to determine number of ports (comets) on board.
- *
- * Revision 2.1  2005/10/05 00:48:13  rickd
- * Add some RX activation trace code.
- *
- * Revision 2.0  2005/09/28 00:10:06  rickd
- * Implement 2.6 workqueue for TX/RX restart.  Correction to
- * hardware register boundary checks allows expanded access of MUSYCC.
- * Implement new musycc reg&bits namings.
- *
- *-----------------------------------------------------------------------------
  */
 
-char        OSSIid_pmcc4_drvc[] =
-"@(#)pmcc4_drv.c - $Revision: 3.1 $   (c) Copyright 2002-2007 One Stop Systems, Inc.";
-
 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
 
-#if defined (__FreeBSD__) || defined (__NetBSD__)
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/errno.h>
-#else
 #include <linux/types.h>
 #include "pmcc4_sysdep.h"
 #include <linux/errno.h>
@@ -98,7 +29,6 @@ char        OSSIid_pmcc4_drvc[] =
 #include <linux/timer.h>        /* include for timer */
 #include <linux/hdlc.h>
 #include <asm/io.h>
-#endif
 
 #include "sbecom_inline_linux.h"
 #include "libsbew.h"
diff --git a/drivers/staging/cxt1e1/pmcc4_ioctls.h b/drivers/staging/cxt1e1/pmcc4_ioctls.h
index 6b8d65673c78..56a1ee39be18 100644
--- a/drivers/staging/cxt1e1/pmcc4_ioctls.h
+++ b/drivers/staging/cxt1e1/pmcc4_ioctls.h
@@ -1,6 +1,3 @@
-/* RCSid: $Header: /home/rickd/projects/pmcc4/include/pmcc4_ioctls.h,v 2.0 2005/09/28 00:10:09 rickd PMCC4_3_1B $
- */
-
 #ifndef _INC_PMCC4_IOCTLS_H_
 #define _INC_PMCC4_IOCTLS_H_
 
@@ -22,19 +19,6 @@
  * For further information, contact via email: support@sbei.com
  * SBE, Inc.  San Ramon, California  U.S.A.
  *-----------------------------------------------------------------------------
- * RCS info:
- * RCS revision: $Revision: 2.0 $
- * Last changed on $Date: 2005/09/28 00:10:09 $
- * Changed by $Author: rickd $
- *-----------------------------------------------------------------------------
- * $Log: pmcc4_ioctls.h,v $
- * Revision 2.0  2005/09/28 00:10:09  rickd
- * Add GNU license info. Switch Ioctls to sbe_ioc.h usage.
- *
- * Revision 1.2  2005/04/28 23:43:03  rickd
- * Add RCS tracking heading.
- *
- *-----------------------------------------------------------------------------
  */
 
 #include "sbew_ioc.h"
diff --git a/drivers/staging/cxt1e1/sbe_bid.h b/drivers/staging/cxt1e1/sbe_bid.h
index 1f49b4061fb7..abc2e55f62fc 100644
--- a/drivers/staging/cxt1e1/sbe_bid.h
+++ b/drivers/staging/cxt1e1/sbe_bid.h
@@ -1,7 +1,3 @@
-/*
- * $Id: sbe_bid.h,v 1.0 2005/09/28 00:10:09 rickd PMCC4_3_1B $
- */
-
 #ifndef _INC_SBEBID_H_
 #define _INC_SBEBID_H_
 
@@ -24,16 +20,6 @@
  * SBE, Inc.  San Ramon, California  U.S.A.
  *
  *-----------------------------------------------------------------------------
- * RCS info:
- * RCS revision: $Revision: 1.0 $
- * Last changed on $Date: 2005/09/28 00:10:09 $
- * Changed by $Author: rickd $
- *-----------------------------------------------------------------------------
- * $Log: sbe_bid.h,v $
- * Revision 1.0  2005/09/28 00:10:09  rickd
- * Initial revision
- *
- *-----------------------------------------------------------------------------
  */
 
 #define SBE_BID_REG        0x00000000   /* Board ID Register */
diff --git a/drivers/staging/cxt1e1/sbe_promformat.h b/drivers/staging/cxt1e1/sbe_promformat.h
index 746f81b15c73..aad411d185f5 100644
--- a/drivers/staging/cxt1e1/sbe_promformat.h
+++ b/drivers/staging/cxt1e1/sbe_promformat.h
@@ -1,7 +1,3 @@
-/*
- * $Id: sbe_promformat.h,v 2.2 2005/09/28 00:10:09 rickd PMCC4_3_1B $
- */
-
 #ifndef _INC_SBE_PROMFORMAT_H_
 #define _INC_SBE_PROMFORMAT_H_
 
@@ -24,19 +20,6 @@
  * SBE, Inc.  San Ramon, California  U.S.A.
  *
  *-----------------------------------------------------------------------------
- * RCS info:
- * RCS revision: $Revision: 2.2 $
- * Last changed on $Date: 2005/09/28 00:10:09 $
- * Changed by $Author: rickd $
- *-----------------------------------------------------------------------------
- * $Log: sbe_promformat.h,v $
- * Revision 2.2  2005/09/28 00:10:09  rickd
- * Add EEPROM sample from C4T1E1 board.
- *
- * Revision 2.1  2005/05/04 17:18:24  rickd
- * Initial CI.
- *
- *-----------------------------------------------------------------------------
  */
 
 
@@ -85,12 +68,6 @@
  *
  */
 
-#ifdef __cplusplus
-extern      "C"
-{
-#endif
-
-
 #define STRUCT_OFFSET(type, symbol)  ((long)&(((type *)0)->symbol))
 
 /*------------------------------------------------------------------------
@@ -150,8 +127,4 @@ extern      "C"
         FLD_TYPE2   fldType2;
     }           PROMFORMAT;
 
-#ifdef __cplusplus
-}
-#endif
-
 #endif                          /*** _INC_SBE_PROMFORMAT_H_ ***/
diff --git a/drivers/staging/cxt1e1/sbecom_inline_linux.h b/drivers/staging/cxt1e1/sbecom_inline_linux.h
index 9ea2c0c2061f..68ed445ab0cb 100644
--- a/drivers/staging/cxt1e1/sbecom_inline_linux.h
+++ b/drivers/staging/cxt1e1/sbecom_inline_linux.h
@@ -1,7 +1,3 @@
-/*
- * $Id: sbecom_inline_linux.h,v 1.2 2007/08/15 22:51:35 rickd PMCC4_3_1B $
- */
-
 #ifndef _INC_SBECOM_INLNX_H_
 #define _INC_SBECOM_INLNX_H_
 
@@ -24,22 +20,6 @@
  * For further information, contact via email: support@onestopsystems.com
  * One Stop Systems, Inc.  Escondido, California  U.S.A.
  *-----------------------------------------------------------------------------
- * RCS info:
- * RCS revision: $Revision: 1.2 $
- * Last changed on $Date: 2007/08/15 22:51:35 $
- * Changed by $Author: rickd $
- *-----------------------------------------------------------------------------
- * $Log: sbecom_inline_linux.h,v $
- * Revision 1.2  2007/08/15 22:51:35  rickd
- * Remove duplicate version.h entry.
- *
- * Revision 1.1  2007/08/15 22:50:29  rickd
- * Update linux/config for 2.6.18 and later.
- *
- * Revision 1.0  2005/09/28 00:10:09  rickd
- * Initial revision
- *
- *-----------------------------------------------------------------------------
  */
 
 
diff --git a/drivers/staging/cxt1e1/sbeproc.h b/drivers/staging/cxt1e1/sbeproc.h
index 4aa53f44ec0b..e82be6afd1e8 100644
--- a/drivers/staging/cxt1e1/sbeproc.h
+++ b/drivers/staging/cxt1e1/sbeproc.h
@@ -1,7 +1,3 @@
-/*
- * $Id: sbeproc.h,v 1.2 2005/10/17 23:55:28 rickd PMCC4_3_1B $
- */
-
 #ifndef _INC_SBEPROC_H_
 #define _INC_SBEPROC_H_
 
@@ -23,22 +19,6 @@
  * For further information, contact via email: support@sbei.com
  * SBE, Inc.  San Ramon, California  U.S.A.
  *-----------------------------------------------------------------------------
- * RCS info:
- * RCS revision: $Revision: 1.2 $
- * Last changed on $Date: 2005/10/17 23:55:28 $
- * Changed by $Author: rickd $
- *-----------------------------------------------------------------------------
- * $Log: sbeproc.h,v $
- * Revision 1.2  2005/10/17 23:55:28  rickd
- * sbecom_proc_brd_init() is an declared an __init function.
- *
- * Revision 1.1  2005/09/28 00:10:09  rickd
- * Remove unneeded inclusion of c4_private.h.
- *
- * Revision 1.0  2005/05/10 22:21:46  rickd
- * Initial check-in.
- *
- *-----------------------------------------------------------------------------
  */
 
 
diff --git a/drivers/staging/cxt1e1/sbew_ioc.h b/drivers/staging/cxt1e1/sbew_ioc.h
index 14d371904d1f..ce9b15c71894 100644
--- a/drivers/staging/cxt1e1/sbew_ioc.h
+++ b/drivers/staging/cxt1e1/sbew_ioc.h
@@ -1,7 +1,3 @@
-/*
- * $Id: sbew_ioc.h,v 1.0 2005/09/28 00:10:10 rickd PMCC4_3_1B $
- */
-
 #ifndef _INC_SBEWIOC_H_
 #define _INC_SBEWIOC_H_
 
@@ -24,55 +20,9 @@
  * SBE, Inc.  San Ramon, California  U.S.A.
  *
  *-----------------------------------------------------------------------------
- * RCS info:
- * RCS revision: $Revision: 1.0 $
- * Last changed on $Date: 2005/09/28 00:10:10 $
- * Changed by $Author: rickd $
- *-----------------------------------------------------------------------------
- * $Log: sbew_ioc.h,v $
- * Revision 1.0  2005/09/28 00:10:10  rickd
- * Initial revision
- *
- * Revision 1.6  2005/01/11 18:41:01  rickd
- * Add BRDADDR_GET Ioctl.
- *
- * Revision 1.5  2004/09/16 18:55:59  rickd
- * Start setting up for generic framer configuration Ioctl by switch
- * from tect3_framer_param[] to sbecom_framer_param[].
- *
- * Revision 1.4  2004/06/28 17:58:15  rickd
- * Rename IOC_TSMAP_[GS] to IOC_TSIOC_[GS] to support need for
- * multiple formats of data when setting up TimeSlots.
- *
- * Revision 1.3  2004/06/22 21:18:13  rickd
- * read_vec now() ONLY handles a single common wrt_vec array.
- *
- * Revision 1.1  2004/06/10 18:11:34  rickd
- * Add IID_GET Ioctl reference.
- *
- * Revision 1.0  2004/06/08 22:59:38  rickd
- * Initial revision
- *
- * Revision 2.0  2004/06/07 17:49:47  rickd
- * Initial library release following merge of wanc1t3/wan256 into
- * common elements for lib.
- *
- *-----------------------------------------------------------------------------
  */
 
-#ifndef __KERNEL__
-#include <sys/types.h>
-#endif
-#ifdef SunOS
-#include <sys/ioccom.h>
-#else
 #include <linux/ioctl.h>
-#endif
-
-#ifdef __cplusplus
-extern      "C"
-{
-#endif
 
 #define SBE_LOCKFILE   "/tmp/.sbewan.LCK"
 
@@ -128,9 +78,4 @@ extern      "C"
 
 #define SBE_IOC_MAXVEC    1
 
-
-#ifdef __cplusplus
-}
-#endif
-
 #endif                          /*** _INC_SBEWIOC_H_ ***/
diff --git a/drivers/staging/et131x/et131x.c b/drivers/staging/et131x/et131x.c
index 0c1c6ca8c379..2c4069fcd981 100644
--- a/drivers/staging/et131x/et131x.c
+++ b/drivers/staging/et131x/et131x.c
@@ -155,7 +155,6 @@ MODULE_DESCRIPTION("10/100/1000 Base-T Ethernet Driver "
 #define fMP_ADAPTER_FAIL_SEND_MASK	0x3ff00000
 
 /* Some offsets in PCI config space that are actually used. */
-#define ET1310_PCI_MAX_PYLD		0x4C
 #define ET1310_PCI_MAC_ADDRESS		0xA4
 #define ET1310_PCI_EEPROM_STATUS	0xB2
 #define ET1310_PCI_ACK_NACK		0xC0
@@ -178,9 +177,7 @@ MODULE_DESCRIPTION("10/100/1000 Base-T Ethernet Driver "
 
 /* RX defines */
 #define USE_FBR0 1
-
 #define FBR_CHUNKS 32
-
 #define MAX_DESC_PER_RING_RX         1024
 
 /* number of RFDs - default and min */
@@ -195,7 +192,6 @@ MODULE_DESCRIPTION("10/100/1000 Base-T Ethernet Driver "
 #endif
 
 #define NIC_MIN_NUM_RFD		64
-
 #define NUM_PACKETS_HANDLED	256
 
 #define ALCATEL_MULTICAST_PKT	0x01000000
@@ -303,8 +299,8 @@ struct fbr_lookup {
 	dma_addr_t	 ring_physaddr;
 	void		*mem_virtaddrs[MAX_DESC_PER_RING_RX / FBR_CHUNKS];
 	dma_addr_t	 mem_physaddrs[MAX_DESC_PER_RING_RX / FBR_CHUNKS];
-	uint64_t	 real_physaddr;
-	uint64_t	 offset;
+	u64		 real_physaddr;
+	u64		 offset;
 	u32		 local_full;
 	u32		 num_entries;
 	u32		 buffsize;
@@ -427,7 +423,6 @@ struct tx_ring {
 	int since_irq;
 };
 
-/* ADAPTER defines */
 /*
  * Do not change these values: if changed, then change also in respective
  * TXdma and Rxdma engines
@@ -576,8 +571,6 @@ struct et131x_adapter {
 	struct net_device_stats net_stats;
 };
 
-/* EEPROM functions */
-
 static int eeprom_wait_ready(struct pci_dev *pdev, u32 *status)
 {
 	u32 reg;
@@ -795,7 +788,7 @@ static int eeprom_read(struct et131x_adapter *adapter, u32 addr, u8 *pdata)
 	return (status & LBCIF_STATUS_ACK_ERROR) ? -EIO : 0;
 }
 
-int et131x_init_eeprom(struct et131x_adapter *adapter)
+static int et131x_init_eeprom(struct et131x_adapter *adapter)
 {
 	struct pci_dev *pdev = adapter->pdev;
 	u8 eestatus;
@@ -868,7 +861,7 @@ int et131x_init_eeprom(struct et131x_adapter *adapter)
  * et131x_rx_dma_enable - re-start of Rx_DMA on the ET1310.
  * @adapter: pointer to our adapter structure
  */
-void et131x_rx_dma_enable(struct et131x_adapter *adapter)
+static void et131x_rx_dma_enable(struct et131x_adapter *adapter)
 {
 	/* Setup the receive dma configuration register for normal operation */
 	u32 csr =  0x2000;	/* FBR1 enable */
@@ -906,7 +899,7 @@ void et131x_rx_dma_enable(struct et131x_adapter *adapter)
  * et131x_rx_dma_disable - Stop of Rx_DMA on the ET1310
  * @adapter: pointer to our adapter structure
  */
-void et131x_rx_dma_disable(struct et131x_adapter *adapter)
+static void et131x_rx_dma_disable(struct et131x_adapter *adapter)
 {
 	u32 csr;
 	/* Setup the receive dma configuration register */
@@ -928,7 +921,7 @@ void et131x_rx_dma_disable(struct et131x_adapter *adapter)
  *
  * Mainly used after a return to the D0 (full-power) state from a lower state.
  */
-void et131x_tx_dma_enable(struct et131x_adapter *adapter)
+static void et131x_tx_dma_enable(struct et131x_adapter *adapter)
 {
 	/* Setup the transmit dma configuration register for normal
 	 * operation
@@ -948,23 +941,10 @@ static inline void add_12bit(u32 *v, int n)
 }
 
 /**
- * nic_rx_pkts - Checks the hardware for available packets
- * @adapter: pointer to our adapter
- *
- * Returns rfd, a pointer to our MPRFD.
- *
- * Checks the hardware for available packets, using completion ring
- * If packets are available, it gets an RFD from the recv_list, attaches
- * the packet to it, puts the RFD in the RecvPendList, and also returns
- * the pointer to the RFD.
- */
-/* MAC functions */
-
-/**
  * et1310_config_mac_regs1 - Initialize the first part of MAC regs
  * @adapter: pointer to our adapter structure
  */
-void et1310_config_mac_regs1(struct et131x_adapter *adapter)
+static void et1310_config_mac_regs1(struct et131x_adapter *adapter)
 {
 	struct mac_regs __iomem *macregs = &adapter->regs->mac;
 	u32 station1;
@@ -1024,7 +1004,7 @@ void et1310_config_mac_regs1(struct et131x_adapter *adapter)
  * et1310_config_mac_regs2 - Initialize the second part of MAC regs
  * @adapter: pointer to our adapter structure
  */
-void et1310_config_mac_regs2(struct et131x_adapter *adapter)
+static void et1310_config_mac_regs2(struct et131x_adapter *adapter)
 {
 	int32_t delay = 0;
 	struct mac_regs __iomem *mac = &adapter->regs->mac;
@@ -1105,7 +1085,7 @@ void et1310_config_mac_regs2(struct et131x_adapter *adapter)
  *
  * Returns 0 if the device is not in phy coma, 1 if it is in phy coma
  */
-int et1310_in_phy_coma(struct et131x_adapter *adapter)
+static int et1310_in_phy_coma(struct et131x_adapter *adapter)
 {
 	u32 pmcsr;
 
@@ -1114,15 +1094,13 @@ int et1310_in_phy_coma(struct et131x_adapter *adapter)
 	return ET_PM_PHY_SW_COMA & pmcsr ? 1 : 0;
 }
 
-void et1310_setup_device_for_multicast(struct et131x_adapter *adapter)
+static void et1310_setup_device_for_multicast(struct et131x_adapter *adapter)
 {
 	struct rxmac_regs __iomem *rxmac = &adapter->regs->rxmac;
-	uint32_t nIndex;
-	uint32_t result;
-	uint32_t hash1 = 0;
-	uint32_t hash2 = 0;
-	uint32_t hash3 = 0;
-	uint32_t hash4 = 0;
+	u32 hash1 = 0;
+	u32 hash2 = 0;
+	u32 hash3 = 0;
+	u32 hash4 = 0;
 	u32 pm_csr;
 
 	/* If ET131X_PACKET_TYPE_MULTICAST is specified, then we provision
@@ -1131,10 +1109,13 @@ void et1310_setup_device_for_multicast(struct et131x_adapter *adapter)
 	 * driver.
 	 */
 	if (adapter->packet_filter & ET131X_PACKET_TYPE_MULTICAST) {
+		int i;
+
 		/* Loop through our multicast array and set up the device */
-		for (nIndex = 0; nIndex < adapter->multicast_addr_count;
-		     nIndex++) {
-			result = ether_crc(6, adapter->multicast_list[nIndex]);
+		for (i = 0; i < adapter->multicast_addr_count; i++) {
+			u32 result;
+
+			result = ether_crc(6, adapter->multicast_list[i]);
 
 			result = (result & 0x3F800000) >> 23;
 
@@ -1163,7 +1144,7 @@ void et1310_setup_device_for_multicast(struct et131x_adapter *adapter)
 	}
 }
 
-void et1310_setup_device_for_unicast(struct et131x_adapter *adapter)
+static void et1310_setup_device_for_unicast(struct et131x_adapter *adapter)
 {
 	struct rxmac_regs __iomem *rxmac = &adapter->regs->rxmac;
 	u32 uni_pf1;
@@ -1203,7 +1184,7 @@ void et1310_setup_device_for_unicast(struct et131x_adapter *adapter)
 	}
 }
 
-void et1310_config_rxmac_regs(struct et131x_adapter *adapter)
+static void et1310_config_rxmac_regs(struct et131x_adapter *adapter)
 {
 	struct rxmac_regs __iomem *rxmac = &adapter->regs->rxmac;
 	struct phy_device *phydev = adapter->phydev;
@@ -1334,7 +1315,7 @@ void et1310_config_rxmac_regs(struct et131x_adapter *adapter)
 	writel(0x9, &rxmac->ctrl);
 }
 
-void et1310_config_txmac_regs(struct et131x_adapter *adapter)
+static void et1310_config_txmac_regs(struct et131x_adapter *adapter)
 {
 	struct txmac_regs __iomem *txmac = &adapter->regs->txmac;
 
@@ -1348,7 +1329,7 @@ void et1310_config_txmac_regs(struct et131x_adapter *adapter)
 		writel(0x40, &txmac->cf_param);
 }
 
-void et1310_config_macstat_regs(struct et131x_adapter *adapter)
+static void et1310_config_macstat_regs(struct et131x_adapter *adapter)
 {
 	struct macstat_regs __iomem *macstat =
 		&adapter->regs->macstat;
@@ -1422,7 +1403,7 @@ void et1310_config_macstat_regs(struct et131x_adapter *adapter)
  *
  * Returns 0 on success, errno on failure (as defined in errno.h)
  */
-int et131x_phy_mii_read(struct et131x_adapter *adapter, u8 addr,
+static int et131x_phy_mii_read(struct et131x_adapter *adapter, u8 addr,
 	      u8 reg, u16 *value)
 {
 	struct mac_regs __iomem *mac = &adapter->regs->mac;
@@ -1478,7 +1459,7 @@ int et131x_phy_mii_read(struct et131x_adapter *adapter, u8 addr,
 	return status;
 }
 
-int et131x_mii_read(struct et131x_adapter *adapter, u8 reg, u16 *value)
+static int et131x_mii_read(struct et131x_adapter *adapter, u8 reg, u16 *value)
 {
 	struct phy_device *phydev = adapter->phydev;
 
@@ -1498,7 +1479,7 @@ int et131x_mii_read(struct et131x_adapter *adapter, u8 reg, u16 *value)
  *
  * Return 0 on success, errno on failure (as defined in errno.h)
  */
-int et131x_mii_write(struct et131x_adapter *adapter, u8 reg, u16 value)
+static int et131x_mii_write(struct et131x_adapter *adapter, u8 reg, u16 value)
 {
 	struct mac_regs __iomem *mac = &adapter->regs->mac;
 	struct phy_device *phydev = adapter->phydev;
@@ -1564,8 +1545,9 @@ int et131x_mii_write(struct et131x_adapter *adapter, u8 reg, u16 value)
 }
 
 /* Still used from _mac for BIT_READ */
-void et1310_phy_access_mii_bit(struct et131x_adapter *adapter, u16 action,
-			       u16 regnum, u16 bitnum, u8 *value)
+static void et1310_phy_access_mii_bit(struct et131x_adapter *adapter,
+				      u16 action, u16 regnum, u16 bitnum,
+				      u8 *value)
 {
 	u16 reg;
 	u16 mask = 0x0001 << bitnum;
@@ -1591,7 +1573,7 @@ void et1310_phy_access_mii_bit(struct et131x_adapter *adapter, u16 action,
 	}
 }
 
-void et1310_config_flow_control(struct et131x_adapter *adapter)
+static void et1310_config_flow_control(struct et131x_adapter *adapter)
 {
 	struct phy_device *phydev = adapter->phydev;
 
@@ -1632,7 +1614,7 @@ void et1310_config_flow_control(struct et131x_adapter *adapter)
  * et1310_update_macstat_host_counters - Update the local copy of the statistics
  * @adapter: pointer to the adapter structure
  */
-void et1310_update_macstat_host_counters(struct et131x_adapter *adapter)
+static void et1310_update_macstat_host_counters(struct et131x_adapter *adapter)
 {
 	struct ce_stats *stats = &adapter->stats;
 	struct macstat_regs __iomem *macstat =
@@ -1664,7 +1646,7 @@ void et1310_update_macstat_host_counters(struct et131x_adapter *adapter)
  * the statistics held in the adapter structure, checking the "wrap"
  * bit for each counter.
  */
-void et1310_handle_macstat_interrupt(struct et131x_adapter *adapter)
+static void et1310_handle_macstat_interrupt(struct et131x_adapter *adapter)
 {
 	u32 carry_reg1;
 	u32 carry_reg2;
@@ -1714,9 +1696,7 @@ void et1310_handle_macstat_interrupt(struct et131x_adapter *adapter)
 		adapter->stats.tx_collisions	+= COUNTER_WRAP_12_BIT;
 }
 
-/* PHY functions */
-
-int et131x_mdio_read(struct mii_bus *bus, int phy_addr, int reg)
+static int et131x_mdio_read(struct mii_bus *bus, int phy_addr, int reg)
 {
 	struct net_device *netdev = bus->priv;
 	struct et131x_adapter *adapter = netdev_priv(netdev);
@@ -1731,7 +1711,7 @@ int et131x_mdio_read(struct mii_bus *bus, int phy_addr, int reg)
 		return value;
 }
 
-int et131x_mdio_write(struct mii_bus *bus, int phy_addr, int reg, u16 value)
+static int et131x_mdio_write(struct mii_bus *bus, int phy_addr, int reg, u16 value)
 {
 	struct net_device *netdev = bus->priv;
 	struct et131x_adapter *adapter = netdev_priv(netdev);
@@ -1739,7 +1719,7 @@ int et131x_mdio_write(struct mii_bus *bus, int phy_addr, int reg, u16 value)
 	return et131x_mii_write(adapter, reg, value);
 }
 
-int et131x_mdio_reset(struct mii_bus *bus)
+static int et131x_mdio_reset(struct mii_bus *bus)
 {
 	struct net_device *netdev = bus->priv;
 	struct et131x_adapter *adapter = netdev_priv(netdev);
@@ -1759,7 +1739,7 @@ int et131x_mdio_reset(struct mii_bus *bus)
  *	Can't you see that this code processed
  *	Phy power, phy power..
  */
-void et1310_phy_power_down(struct et131x_adapter *adapter, bool down)
+static void et1310_phy_power_down(struct et131x_adapter *adapter, bool down)
 {
 	u16 data;
 
@@ -1775,7 +1755,7 @@ void et1310_phy_power_down(struct et131x_adapter *adapter, bool down)
  * @adapter: pointer to our private adapter structure
  *
  */
-void et131x_xcvr_init(struct et131x_adapter *adapter)
+static void et131x_xcvr_init(struct et131x_adapter *adapter)
 {
 	u16 imr;
 	u16 isr;
@@ -1822,7 +1802,7 @@ void et131x_xcvr_init(struct et131x_adapter *adapter)
  *
  * Used to configure the global registers on the JAGCore
  */
-void et131x_configure_global_regs(struct et131x_adapter *adapter)
+static void et131x_configure_global_regs(struct et131x_adapter *adapter)
 {
 	struct global_regs __iomem *regs = &adapter->regs->global;
 
@@ -1863,13 +1843,11 @@ void et131x_configure_global_regs(struct et131x_adapter *adapter)
 	writel(0, &regs->watchdog_timer);
 }
 
-/* PM functions */
-
 /**
  * et131x_config_rx_dma_regs - Start of Rx_DMA init sequence
  * @adapter: pointer to our adapter structure
  */
-void et131x_config_rx_dma_regs(struct et131x_adapter *adapter)
+static void et131x_config_rx_dma_regs(struct et131x_adapter *adapter)
 {
 	struct rxdma_regs __iomem *rx_dma = &adapter->regs->rxdma;
 	struct rx_ring *rx_local = &adapter->rx_ring;
@@ -1987,7 +1965,7 @@ void et131x_config_rx_dma_regs(struct et131x_adapter *adapter)
  * Configure the transmit engine with the ring buffers we have created
  * and prepare it for use.
  */
-void et131x_config_tx_dma_regs(struct et131x_adapter *adapter)
+static void et131x_config_tx_dma_regs(struct et131x_adapter *adapter)
 {
 	struct txdma_regs __iomem *txdma = &adapter->regs->txdma;
 
@@ -2017,7 +1995,7 @@ void et131x_config_tx_dma_regs(struct et131x_adapter *adapter)
  *
  * Returns 0 on success, errno on failure (as defined in errno.h)
  */
-void et131x_adapter_setup(struct et131x_adapter *adapter)
+static void et131x_adapter_setup(struct et131x_adapter *adapter)
 {
 	/* Configure the JAGCore */
 	et131x_configure_global_regs(adapter);
@@ -2044,7 +2022,7 @@ void et131x_adapter_setup(struct et131x_adapter *adapter)
  * et131x_soft_reset - Issue a soft reset to the hardware, complete for ET1310
  * @adapter: pointer to our private adapter structure
  */
-void et131x_soft_reset(struct et131x_adapter *adapter)
+static void et131x_soft_reset(struct et131x_adapter *adapter)
 {
 	/* Disable MAC Core */
 	writel(0xc00f0000, &adapter->regs->mac.cfg1);
@@ -2062,7 +2040,7 @@ void et131x_soft_reset(struct et131x_adapter *adapter)
  *	Enable the appropriate interrupts on the ET131x according to our
  *	configuration
  */
-void et131x_enable_interrupts(struct et131x_adapter *adapter)
+static void et131x_enable_interrupts(struct et131x_adapter *adapter)
 {
 	u32 mask;
 
@@ -2082,7 +2060,7 @@ void et131x_enable_interrupts(struct et131x_adapter *adapter)
  *
  *	Block all interrupts from the et131x device at the device itself
  */
-void et131x_disable_interrupts(struct et131x_adapter *adapter)
+static void et131x_disable_interrupts(struct et131x_adapter *adapter)
 {
 	/* Disable all global interrupts */
 	writel(INT_MASK_DISABLE, &adapter->regs->global.int_mask);
@@ -2092,7 +2070,7 @@ void et131x_disable_interrupts(struct et131x_adapter *adapter)
  * et131x_tx_dma_disable - Stop of Tx_DMA on the ET1310
  * @adapter: pointer to our adapter structure
  */
-void et131x_tx_dma_disable(struct et131x_adapter *adapter)
+static void et131x_tx_dma_disable(struct et131x_adapter *adapter)
 {
 	/* Setup the tramsmit dma configuration register */
 	writel(ET_TXDMA_CSR_HALT|ET_TXDMA_SNGL_EPKT,
@@ -2103,7 +2081,7 @@ void et131x_tx_dma_disable(struct et131x_adapter *adapter)
  * et131x_enable_txrx - Enable tx/rx queues
  * @netdev: device to be enabled
  */
-void et131x_enable_txrx(struct net_device *netdev)
+static void et131x_enable_txrx(struct net_device *netdev)
 {
 	struct et131x_adapter *adapter = netdev_priv(netdev);
 
@@ -2123,7 +2101,7 @@ void et131x_enable_txrx(struct net_device *netdev)
  * et131x_disable_txrx - Disable tx/rx queues
  * @netdev: device to be disabled
  */
-void et131x_disable_txrx(struct net_device *netdev)
+static void et131x_disable_txrx(struct net_device *netdev)
 {
 	struct et131x_adapter *adapter = netdev_priv(netdev);
 
@@ -2142,7 +2120,7 @@ void et131x_disable_txrx(struct net_device *netdev)
  * et131x_init_send - Initialize send data structures
  * @adapter: pointer to our private adapter structure
  */
-void et131x_init_send(struct et131x_adapter *adapter)
+static void et131x_init_send(struct et131x_adapter *adapter)
 {
 	struct tcb *tcb;
 	u32 ct;
@@ -2192,7 +2170,7 @@ void et131x_init_send(struct et131x_adapter *adapter)
  *       indicating linkup status, call the MPDisablePhyComa routine to
  *             restore JAGCore and gigE PHY
  */
-void et1310_enable_phy_coma(struct et131x_adapter *adapter)
+static void et1310_enable_phy_coma(struct et131x_adapter *adapter)
 {
 	unsigned long flags;
 	u32 pmcsr;
@@ -2231,7 +2209,7 @@ void et1310_enable_phy_coma(struct et131x_adapter *adapter)
  * et1310_disable_phy_coma - Disable the Phy Coma Mode
  * @adapter: pointer to our adapter structure
  */
-void et1310_disable_phy_coma(struct et131x_adapter *adapter)
+static void et1310_disable_phy_coma(struct et131x_adapter *adapter)
 {
 	u32 pmcsr;
 
@@ -2269,8 +2247,6 @@ void et1310_disable_phy_coma(struct et131x_adapter *adapter)
 	et131x_enable_txrx(adapter->netdev);
 }
 
-/* RX functions */
-
 static inline u32 bump_free_buff_ring(u32 *free_buff_ring, u32 limit)
 {
 	u32 tmp_free_buff_ring = *free_buff_ring;
@@ -2296,16 +2272,14 @@ static inline u32 bump_free_buff_ring(u32 *free_buff_ring, u32 limit)
  * @offset: pointer to the offset variable
  * @mask: correct mask
  */
-void et131x_align_allocated_memory(struct et131x_adapter *adapter,
-				   uint64_t *phys_addr,
-				   uint64_t *offset, uint64_t mask)
+static void et131x_align_allocated_memory(struct et131x_adapter *adapter,
+					  u64 *phys_addr, u64 *offset,
+					  u64 mask)
 {
-	uint64_t new_addr;
+	u64 new_addr = *phys_addr & ~mask;
 
 	*offset = 0;
 
-	new_addr = *phys_addr & ~mask;
-
 	if (new_addr != *phys_addr) {
 		/* Move to next aligned block */
 		new_addr += mask + 1;
@@ -2325,7 +2299,7 @@ void et131x_align_allocated_memory(struct et131x_adapter *adapter,
  * Allocates Free buffer ring 1 for sure, free buffer ring 0 if required,
  * and the Packet Status Ring.
  */
-int et131x_rx_dma_memory_alloc(struct et131x_adapter *adapter)
+static int et131x_rx_dma_memory_alloc(struct et131x_adapter *adapter)
 {
 	u32 i, j;
 	u32 bufsize;
@@ -2454,8 +2428,8 @@ int et131x_rx_dma_memory_alloc(struct et131x_adapter *adapter)
 			rx_ring->fbr[1]->offset);
 #endif
 	for (i = 0; i < (rx_ring->fbr[0]->num_entries / FBR_CHUNKS); i++) {
-		u64 fbr1_offset;
 		u64 fbr1_tmp_physaddr;
+		u64 fbr1_offset;
 		u32 fbr1_align;
 
 		/* This code allocates an area of memory big enough for N
@@ -2520,8 +2494,8 @@ int et131x_rx_dma_memory_alloc(struct et131x_adapter *adapter)
 #ifdef USE_FBR0
 	/* Same for FBR0 (if in use) */
 	for (i = 0; i < (rx_ring->fbr[1]->num_entries / FBR_CHUNKS); i++) {
-		u64 fbr0_offset;
 		u64 fbr0_tmp_physaddr;
+		u64 fbr0_offset;
 
 		fbr_chunksize =
 		    ((FBR_CHUNKS + 1) * rx_ring->fbr[1]->buffsize) - 1;
@@ -2629,7 +2603,7 @@ int et131x_rx_dma_memory_alloc(struct et131x_adapter *adapter)
  * et131x_rx_dma_memory_free - Free all memory allocated within this module.
  * @adapter: pointer to our private adapter structure
  */
-void et131x_rx_dma_memory_free(struct et131x_adapter *adapter)
+static void et131x_rx_dma_memory_free(struct et131x_adapter *adapter)
 {
 	u32 index;
 	u32 bufsize;
@@ -2774,7 +2748,7 @@ void et131x_rx_dma_memory_free(struct et131x_adapter *adapter)
  *
  * Returns 0 on success and errno on failure (as defined in errno.h)
  */
-int et131x_init_recv(struct et131x_adapter *adapter)
+static int et131x_init_recv(struct et131x_adapter *adapter)
 {
 	int status = -ENOMEM;
 	struct rfd *rfd = NULL;
@@ -2824,7 +2798,7 @@ int et131x_init_recv(struct et131x_adapter *adapter)
  * et131x_set_rx_dma_timer - Set the heartbeat timer according to line rate.
  * @adapter: pointer to our adapter structure
  */
-void et131x_set_rx_dma_timer(struct et131x_adapter *adapter)
+static void et131x_set_rx_dma_timer(struct et131x_adapter *adapter)
 {
 	struct phy_device *phydev = adapter->phydev;
 
@@ -2918,6 +2892,17 @@ static void nic_return_rfd(struct et131x_adapter *adapter, struct rfd *rfd)
 	WARN_ON(rx_local->num_ready_recv > rx_local->num_rfd);
 }
 
+/**
+ * nic_rx_pkts - Checks the hardware for available packets
+ * @adapter: pointer to our adapter
+ *
+ * Returns rfd, a pointer to our MPRFD.
+ *
+ * Checks the hardware for available packets, using completion ring
+ * If packets are available, it gets an RFD from the recv_list, attaches
+ * the packet to it, puts the RFD in the RecvPendList, and also returns
+ * the pointer to the RFD.
+ */
 static struct rfd *nic_rx_pkts(struct et131x_adapter *adapter)
 {
 	struct rx_ring *rx_local = &adapter->rx_ring;
@@ -3139,7 +3124,7 @@ static struct rfd *nic_rx_pkts(struct et131x_adapter *adapter)
  *
  * Assumption, Rcv spinlock has been acquired.
  */
-void et131x_handle_recv_interrupt(struct et131x_adapter *adapter)
+static void et131x_handle_recv_interrupt(struct et131x_adapter *adapter)
 {
 	struct rfd *rfd = NULL;
 	u32 count = 0;
@@ -3188,8 +3173,6 @@ void et131x_handle_recv_interrupt(struct et131x_adapter *adapter)
 		adapter->rx_ring.unfinished_receives = false;
 }
 
-/* TX functions */
-
 /**
  * et131x_tx_dma_memory_alloc
  * @adapter: pointer to our private adapter structure
@@ -3202,7 +3185,7 @@ void et131x_handle_recv_interrupt(struct et131x_adapter *adapter)
  * memory. The device will update the "status" in memory each time it xmits a
  * packet.
  */
-int et131x_tx_dma_memory_alloc(struct et131x_adapter *adapter)
+static int et131x_tx_dma_memory_alloc(struct et131x_adapter *adapter)
 {
 	int desc_size = 0;
 	struct tx_ring *tx_ring = &adapter->tx_ring;
@@ -3256,7 +3239,7 @@ int et131x_tx_dma_memory_alloc(struct et131x_adapter *adapter)
  *
  * Returns 0 on success and errno on failure (as defined in errno.h).
  */
-void et131x_tx_dma_memory_free(struct et131x_adapter *adapter)
+static void et131x_tx_dma_memory_free(struct et131x_adapter *adapter)
 {
 	int desc_size = 0;
 
@@ -3578,7 +3561,7 @@ static int send_packet(struct sk_buff *skb, struct et131x_adapter *adapter)
  *
  * Return 0 in almost all cases; non-zero value in extreme hard failure only
  */
-int et131x_send_packets(struct sk_buff *skb, struct net_device *netdev)
+static int et131x_send_packets(struct sk_buff *skb, struct net_device *netdev)
 {
 	int status = 0;
 	struct et131x_adapter *adapter = netdev_priv(netdev);
@@ -3696,7 +3679,7 @@ static inline void free_send_packet(struct et131x_adapter *adapter,
  *
  * Assumption - Send spinlock has been acquired
  */
-void et131x_free_busy_send_packets(struct et131x_adapter *adapter)
+static void et131x_free_busy_send_packets(struct et131x_adapter *adapter)
 {
 	struct tcb *tcb;
 	unsigned long flags;
@@ -3743,7 +3726,7 @@ void et131x_free_busy_send_packets(struct et131x_adapter *adapter)
  *
  * Assumption - Send spinlock has been acquired
  */
-void et131x_handle_send_interrupt(struct et131x_adapter *adapter)
+static void et131x_handle_send_interrupt(struct et131x_adapter *adapter)
 {
 	unsigned long flags;
 	u32 serviced;
@@ -3798,8 +3781,6 @@ void et131x_handle_send_interrupt(struct et131x_adapter *adapter)
 	spin_unlock_irqrestore(&adapter->tcb_send_qlock, flags);
 }
 
-/* ETHTOOL functions */
-
 static int et131x_get_settings(struct net_device *netdev,
 			       struct ethtool_cmd *cmd)
 {
@@ -3965,18 +3946,16 @@ static struct ethtool_ops et131x_ethtool_ops = {
 	.get_link = ethtool_op_get_link,
 };
 
-void et131x_set_ethtool_ops(struct net_device *netdev)
+static void et131x_set_ethtool_ops(struct net_device *netdev)
 {
 	SET_ETHTOOL_OPS(netdev, &et131x_ethtool_ops);
 }
 
-/* PCI functions */
-
 /**
  * et131x_hwaddr_init - set up the MAC Address on the ET1310
  * @adapter: pointer to our private adapter structure
  */
-void et131x_hwaddr_init(struct et131x_adapter *adapter)
+static void et131x_hwaddr_init(struct et131x_adapter *adapter)
 {
 	/* If have our default mac from init and no mac address from
 	 * EEPROM then we need to generate the last octet and set it on the
@@ -4022,24 +4001,31 @@ void et131x_hwaddr_init(struct et131x_adapter *adapter)
 static int et131x_pci_init(struct et131x_adapter *adapter,
 						struct pci_dev *pdev)
 {
-	int i;
-	u8 max_payload;
-	u8 read_size_reg;
+	int cap = pci_pcie_cap(pdev);
+	u16 max_payload;
+	u16 ctl;
+	int i, rc;
 
-	if (et131x_init_eeprom(adapter) < 0)
-		return -EIO;
+	rc = et131x_init_eeprom(adapter);
+	if (rc < 0)
+		goto out;
 
+	if (!cap) {
+		dev_err(&pdev->dev, "Missing PCIe capabilities\n");
+		goto err_out;
+	}
+		
 	/* Let's set up the PORT LOGIC Register.  First we need to know what
 	 * the max_payload_size is
 	 */
-	if (pci_read_config_byte(pdev, ET1310_PCI_MAX_PYLD, &max_payload)) {
+	if (pci_read_config_word(pdev, cap + PCI_EXP_DEVCAP, &max_payload)) {
 		dev_err(&pdev->dev,
 		    "Could not read PCI config space for Max Payload Size\n");
-		return -EIO;
+		goto err_out;
 	}
 
 	/* Program the Ack/Nak latency and replay timers */
-	max_payload &= 0x07;	/* Only the lower 3 bits are valid */
+	max_payload &= 0x07;
 
 	if (max_payload < 2) {
 		static const u16 acknak[2] = { 0x76, 0xD0 };
@@ -4049,13 +4035,13 @@ static int et131x_pci_init(struct et131x_adapter *adapter,
 					       acknak[max_payload])) {
 			dev_err(&pdev->dev,
 			  "Could not write PCI config space for ACK/NAK\n");
-			return -EIO;
+			goto err_out;
 		}
 		if (pci_write_config_word(pdev, ET1310_PCI_REPLAY,
 					       replay[max_payload])) {
 			dev_err(&pdev->dev,
 			  "Could not write PCI config space for Replay Timer\n");
-			return -EIO;
+			goto err_out;
 		}
 	}
 
@@ -4065,23 +4051,22 @@ static int et131x_pci_init(struct et131x_adapter *adapter,
 	if (pci_write_config_byte(pdev, ET1310_PCI_L0L1LATENCY, 0x11)) {
 		dev_err(&pdev->dev,
 		  "Could not write PCI config space for Latency Timers\n");
-		return -EIO;
+		goto err_out;
 	}
 
 	/* Change the max read size to 2k */
-	if (pci_read_config_byte(pdev, 0x51, &read_size_reg)) {
+	if (pci_read_config_word(pdev, cap + PCI_EXP_DEVCTL, &ctl)) {
 		dev_err(&pdev->dev,
 			"Could not read PCI config space for Max read size\n");
-		return -EIO;
+		goto err_out;
 	}
 
-	read_size_reg &= 0x8f;
-	read_size_reg |= 0x40;
+	ctl = (ctl & ~PCI_EXP_DEVCTL_READRQ) | ( 0x04 << 12);
 
-	if (pci_write_config_byte(pdev, 0x51, read_size_reg)) {
+	if (pci_write_config_word(pdev, cap + PCI_EXP_DEVCTL, ctl)) {
 		dev_err(&pdev->dev,
 		      "Could not write PCI config space for Max read size\n");
-		return -EIO;
+		goto err_out;
 	}
 
 	/* Get MAC address from config space if an eeprom exists, otherwise
@@ -4096,11 +4081,15 @@ static int et131x_pci_init(struct et131x_adapter *adapter,
 		if (pci_read_config_byte(pdev, ET1310_PCI_MAC_ADDRESS + i,
 					adapter->rom_addr + i)) {
 			dev_err(&pdev->dev, "Could not read PCI config space for MAC address\n");
-			return -EIO;
+			goto err_out;
 		}
 	}
 	memcpy(adapter->addr, adapter->rom_addr, ETH_ALEN);
-	return 0;
+out:
+	return rc;
+err_out:
+	rc = -EIO;
+	goto out;
 }
 
 /**
@@ -4110,7 +4099,7 @@ static int et131x_pci_init(struct et131x_adapter *adapter,
  * The routine called when the error timer expires, to track the number of
  * recurring errors.
  */
-void et131x_error_timer_handler(unsigned long data)
+static void et131x_error_timer_handler(unsigned long data)
 {
 	struct et131x_adapter *adapter = (struct et131x_adapter *) data;
 	struct phy_device *phydev = adapter->phydev;
@@ -4153,7 +4142,7 @@ void et131x_error_timer_handler(unsigned long data)
  *
  * Allocate all the memory blocks for send, receive and others.
  */
-int et131x_adapter_memory_alloc(struct et131x_adapter *adapter)
+static int et131x_adapter_memory_alloc(struct et131x_adapter *adapter)
 {
 	int status;
 
@@ -4188,7 +4177,7 @@ int et131x_adapter_memory_alloc(struct et131x_adapter *adapter)
  * et131x_adapter_memory_free - Free all memory allocated for use by Tx & Rx
  * @adapter: pointer to our private adapter structure
  */
-void et131x_adapter_memory_free(struct et131x_adapter *adapter)
+static void et131x_adapter_memory_free(struct et131x_adapter *adapter)
 {
 	/* Free DMA memory */
 	et131x_tx_dma_memory_free(adapter);
@@ -4364,10 +4353,6 @@ static struct et131x_adapter *et131x_adapter_init(struct net_device *netdev,
 	adapter->pdev = pci_dev_get(pdev);
 	adapter->netdev = netdev;
 
-	/* Do the same for the netdev struct */
-	netdev->irq = pdev->irq;
-	netdev->base_addr = pci_resource_start(pdev, 0);
-
 	/* Initialize spinlocks here */
 	spin_lock_init(&adapter->lock);
 	spin_lock_init(&adapter->tcb_send_qlock);
@@ -4400,6 +4385,7 @@ static void __devexit et131x_pci_remove(struct pci_dev *pdev)
 	struct et131x_adapter *adapter = netdev_priv(netdev);
 
 	unregister_netdev(netdev);
+	phy_disconnect(adapter->phydev);
 	mdiobus_unregister(adapter->mii_bus);
 	kfree(adapter->mii_bus->irq);
 	mdiobus_free(adapter->mii_bus);
@@ -4417,7 +4403,7 @@ static void __devexit et131x_pci_remove(struct pci_dev *pdev)
  * et131x_up - Bring up a device for use.
  * @netdev: device to be opened
  */
-void et131x_up(struct net_device *netdev)
+static void et131x_up(struct net_device *netdev)
 {
 	struct et131x_adapter *adapter = netdev_priv(netdev);
 
@@ -4429,7 +4415,7 @@ void et131x_up(struct net_device *netdev)
  * et131x_down - Bring down the device
  * @netdev: device to be broght down
  */
-void et131x_down(struct net_device *netdev)
+static void et131x_down(struct net_device *netdev)
 {
 	struct et131x_adapter *adapter = netdev_priv(netdev);
 
@@ -4475,8 +4461,6 @@ static SIMPLE_DEV_PM_OPS(et131x_pm_ops, et131x_suspend, et131x_resume);
 #define ET131X_PM_OPS NULL
 #endif
 
-/* ISR functions */
-
 /**
  * et131x_isr - The Interrupt Service Routine for the driver.
  * @irq: the IRQ on which the interrupt was received.
@@ -4573,7 +4557,7 @@ out:
  * scheduled to run in a deferred context by the ISR. This is where the ISR's
  * work actually gets done.
  */
-void et131x_isr_handler(struct work_struct *work)
+static void et131x_isr_handler(struct work_struct *work)
 {
 	struct et131x_adapter *adapter =
 		container_of(work, struct et131x_adapter, task);
@@ -4774,8 +4758,6 @@ void et131x_isr_handler(struct work_struct *work)
 	et131x_enable_interrupts(adapter);
 }
 
-/* NETDEV functions */
-
 /**
  * et131x_stats - Return the current device statistics.
  * @netdev: device whose stats are being queried
@@ -4829,10 +4811,12 @@ static struct net_device_stats *et131x_stats(struct net_device *netdev)
  *
  * Returns 0 on success, errno on failure (as defined in errno.h)
  */
-int et131x_open(struct net_device *netdev)
+static int et131x_open(struct net_device *netdev)
 {
-	int result = 0;
 	struct et131x_adapter *adapter = netdev_priv(netdev);
+	struct pci_dev *pdev = adapter->pdev;
+	unsigned int irq = pdev->irq;
+	int result;
 
 	/* Start the timer to track NIC errors */
 	init_timer(&adapter->error_timer);
@@ -4841,12 +4825,9 @@ int et131x_open(struct net_device *netdev)
 	adapter->error_timer.data = (unsigned long)adapter;
 	add_timer(&adapter->error_timer);
 
-	/* Register our IRQ */
-	result = request_irq(netdev->irq, et131x_isr, IRQF_SHARED,
-					netdev->name, netdev);
+	result = request_irq(irq, et131x_isr, IRQF_SHARED, netdev->name, netdev);
 	if (result) {
-		dev_err(&adapter->pdev->dev, "could not register IRQ %d\n",
-			netdev->irq);
+		dev_err(&pdev->dev, "could not register IRQ %d\n", irq);
 		return result;
 	}
 
@@ -4863,14 +4844,14 @@ int et131x_open(struct net_device *netdev)
  *
  * Returns 0 on success, errno on failure (as defined in errno.h)
  */
-int et131x_close(struct net_device *netdev)
+static int et131x_close(struct net_device *netdev)
 {
 	struct et131x_adapter *adapter = netdev_priv(netdev);
 
 	et131x_down(netdev);
 
 	adapter->flags &= ~fMP_ADAPTER_INTERRUPT_IN_USE;
-	free_irq(netdev->irq, netdev);
+	free_irq(adapter->pdev->irq, netdev);
 
 	/* Stop the error timer */
 	return del_timer_sync(&adapter->error_timer);
@@ -4905,8 +4886,8 @@ static int et131x_ioctl(struct net_device *netdev, struct ifreq *reqbuf,
  */
 static int et131x_set_packet_filter(struct et131x_adapter *adapter)
 {
+	int filter = adapter->packet_filter;
 	int status = 0;
-	uint32_t filter = adapter->packet_filter;
 	u32 ctrl;
 	u32 pf_ctrl;
 
@@ -4968,7 +4949,7 @@ static int et131x_set_packet_filter(struct et131x_adapter *adapter)
 static void et131x_multicast(struct net_device *netdev)
 {
 	struct et131x_adapter *adapter = netdev_priv(netdev);
-	uint32_t packet_filter = 0;
+	int packet_filter;
 	unsigned long flags;
 	struct netdev_hw_addr *ha;
 	int i;
@@ -5249,40 +5230,6 @@ static const struct net_device_ops et131x_netdev_ops = {
 };
 
 /**
- * et131x_device_alloc
- *
- * Returns pointer to the allocated and initialized net_device struct for
- * this device.
- *
- * Create instances of net_device and wl_private for the new adapter and
- * register the device's entry points in the net_device structure.
- */
-struct net_device *et131x_device_alloc(void)
-{
-	struct net_device *netdev;
-
-	/* Alloc net_device and adapter structs */
-	netdev = alloc_etherdev(sizeof(struct et131x_adapter));
-
-	if (!netdev) {
-		printk(KERN_ERR "et131x: Alloc of net_device struct failed\n");
-		return NULL;
-	}
-
-	/*
-	 * Setup the function registration table (and other data) for a
-	 * net_device
-	 */
-	netdev->watchdog_timeo = ET131X_TX_TIMEOUT;
-	netdev->netdev_ops     = &et131x_netdev_ops;
-
-	/* Poll? */
-	/* netdev->poll               = &et131x_poll; */
-	/* netdev->poll_controller    = &et131x_poll_controller; */
-	return netdev;
-}
-
-/**
  * et131x_pci_setup - Perform device initialization
  * @pdev: a pointer to the device's pci_dev structure
  * @ent: this device's entry in the pci_device_id table
@@ -5297,24 +5244,26 @@ struct net_device *et131x_device_alloc(void)
 static int __devinit et131x_pci_setup(struct pci_dev *pdev,
 			       const struct pci_device_id *ent)
 {
-	int result;
 	struct net_device *netdev;
 	struct et131x_adapter *adapter;
+	int rc;
 	int ii;
 
-	result = pci_enable_device(pdev);
-	if (result) {
+	rc = pci_enable_device(pdev);
+	if (rc < 0) {
 		dev_err(&pdev->dev, "pci_enable_device() failed\n");
-		goto err_out;
+		goto out;
 	}
 
 	/* Perform some basic PCI checks */
 	if (!(pci_resource_flags(pdev, 0) & IORESOURCE_MEM)) {
 		dev_err(&pdev->dev, "Can't find PCI device's base address\n");
+		rc = -ENODEV;
 		goto err_disable;
 	}
 
-	if (pci_request_regions(pdev, DRIVER_NAME)) {
+	rc = pci_request_regions(pdev, DRIVER_NAME);
+	if (rc < 0) {
 		dev_err(&pdev->dev, "Can't get PCI resources\n");
 		goto err_disable;
 	}
@@ -5323,46 +5272,50 @@ static int __devinit et131x_pci_setup(struct pci_dev *pdev,
 
 	/* Check the DMA addressing support of this device */
 	if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(64))) {
-		result = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
-		if (result) {
+		rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
+		if (rc < 0) {
 			dev_err(&pdev->dev,
 			  "Unable to obtain 64 bit DMA for consistent allocations\n");
 			goto err_release_res;
 		}
 	} else if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(32))) {
-		result = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
-		if (result) {
+		rc = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32));
+		if (rc < 0) {
 			dev_err(&pdev->dev,
 			  "Unable to obtain 32 bit DMA for consistent allocations\n");
 			goto err_release_res;
 		}
 	} else {
 		dev_err(&pdev->dev, "No usable DMA addressing method\n");
-		result = -EIO;
+		rc = -EIO;
 		goto err_release_res;
 	}
 
 	/* Allocate netdev and private adapter structs */
-	netdev = et131x_device_alloc();
+	netdev = alloc_etherdev(sizeof(struct et131x_adapter));
 	if (!netdev) {
 		dev_err(&pdev->dev, "Couldn't alloc netdev struct\n");
-		result = -ENOMEM;
+		rc = -ENOMEM;
 		goto err_release_res;
 	}
 
+	netdev->watchdog_timeo = ET131X_TX_TIMEOUT;
+	netdev->netdev_ops     = &et131x_netdev_ops;
+
 	SET_NETDEV_DEV(netdev, &pdev->dev);
 	et131x_set_ethtool_ops(netdev);
 
 	adapter = et131x_adapter_init(netdev, pdev);
 
-	/* Initialise the PCI setup for the device */
-	et131x_pci_init(adapter, pdev);
+	rc = et131x_pci_init(adapter, pdev);
+	if (rc < 0)
+		goto err_free_dev;
 
 	/* Map the bus-relative registers to system virtual memory */
 	adapter->regs = pci_ioremap_bar(pdev, 0);
 	if (!adapter->regs) {
 		dev_err(&pdev->dev, "Cannot map device registers\n");
-		result = -ENOMEM;
+		rc = -ENOMEM;
 		goto err_free_dev;
 	}
 
@@ -5376,8 +5329,8 @@ static int __devinit et131x_pci_setup(struct pci_dev *pdev,
 	et131x_disable_interrupts(adapter);
 
 	/* Allocate DMA memory */
-	result = et131x_adapter_memory_alloc(adapter);
-	if (result) {
+	rc = et131x_adapter_memory_alloc(adapter);
+	if (rc < 0) {
 		dev_err(&pdev->dev, "Could not alloc adapater memory (DMA)\n");
 		goto err_iounmap;
 	}
@@ -5395,6 +5348,8 @@ static int __devinit et131x_pci_setup(struct pci_dev *pdev,
 	adapter->boot_coma = 0;
 	et1310_disable_phy_coma(adapter);
 
+	rc = -ENOMEM;
+
 	/* Setup the mii_bus struct */
 	adapter->mii_bus = mdiobus_alloc();
 	if (!adapter->mii_bus) {
@@ -5418,13 +5373,14 @@ static int __devinit et131x_pci_setup(struct pci_dev *pdev,
 	for (ii = 0; ii < PHY_MAX_ADDR; ii++)
 		adapter->mii_bus->irq[ii] = PHY_POLL;
 
-	if (mdiobus_register(adapter->mii_bus)) {
+	rc = mdiobus_register(adapter->mii_bus);
+	if (rc < 0) {
 		dev_err(&pdev->dev, "failed to register MII bus\n");
-		mdiobus_free(adapter->mii_bus);
 		goto err_mdio_free_irq;
 	}
 
-	if (et131x_mii_probe(netdev)) {
+	rc = et131x_mii_probe(netdev);
+	if (rc < 0) {
 		dev_err(&pdev->dev, "failed to probe MII bus\n");
 		goto err_mdio_unregister;
 	}
@@ -5440,10 +5396,10 @@ static int __devinit et131x_pci_setup(struct pci_dev *pdev,
 	 */
 
 	/* Register the net_device struct with the Linux network layer */
-	result = register_netdev(netdev);
-	if (result != 0) {
+	rc = register_netdev(netdev);
+	if (rc < 0) {
 		dev_err(&pdev->dev, "register_netdev() failed\n");
-		goto err_mdio_unregister;
+		goto err_phy_disconnect;
 	}
 
 	/* Register the net_device struct with the PCI subsystem. Save a copy
@@ -5451,10 +5407,11 @@ static int __devinit et131x_pci_setup(struct pci_dev *pdev,
 	 * been initialized, just in case it needs to be quickly restored.
 	 */
 	pci_set_drvdata(pdev, netdev);
-	pci_save_state(adapter->pdev);
-
-	return result;
+out:
+	return rc;
 
+err_phy_disconnect:
+	phy_disconnect(adapter->phydev);
 err_mdio_unregister:
 	mdiobus_unregister(adapter->mii_bus);
 err_mdio_free_irq:
@@ -5472,8 +5429,7 @@ err_release_res:
 	pci_release_regions(pdev);
 err_disable:
 	pci_disable_device(pdev);
-err_out:
-	return result;
+	goto out;
 }
 
 static DEFINE_PCI_DEVICE_TABLE(et131x_pci_table) = {
diff --git a/drivers/staging/frontier/tranzport.c b/drivers/staging/frontier/tranzport.c
index c263284ddc0e..cf47a5d191fc 100644
--- a/drivers/staging/frontier/tranzport.c
+++ b/drivers/staging/frontier/tranzport.c
@@ -199,7 +199,7 @@ static void usb_tranzport_abort_transfers(struct usb_tranzport *dev)
 		struct usb_interface *intf = to_usb_interface(dev);	\
 		struct usb_tranzport *t = usb_get_intfdata(intf);	\
 		unsigned long temp;	\
-		if (strict_strtoul(buf, 10, &temp))	\
+		if (kstrtoul(buf, 10, &temp))	\
 			return -EINVAL;	\
 		t->value = temp;	\
 		return count;	\
diff --git a/drivers/staging/gma500/Kconfig b/drivers/staging/gma500/Kconfig
index bfe2166acda6..c7a2b3bc0a18 100644
--- a/drivers/staging/gma500/Kconfig
+++ b/drivers/staging/gma500/Kconfig
@@ -1,6 +1,6 @@
 config DRM_PSB
 	tristate "Intel GMA5/600 KMS Framebuffer"
-	depends on DRM && PCI && X86
+	depends on DRM && PCI && X86 && BROKEN
 	select FB_CFB_COPYAREA
         select FB_CFB_FILLRECT
         select FB_CFB_IMAGEBLIT
diff --git a/drivers/staging/gma500/accel_2d.c b/drivers/staging/gma500/accel_2d.c
index 114b99a1ce19..b8f78ebbb145 100644
--- a/drivers/staging/gma500/accel_2d.c
+++ b/drivers/staging/gma500/accel_2d.c
@@ -253,7 +253,7 @@ static void psbfb_copyarea_accel(struct fb_info *info,
 		return;
 
 	offset = psbfb->gtt->offset;
-	stride = fb->pitch;
+	stride = fb->pitches[0];
 
 	switch (fb->depth) {
 	case 8:
diff --git a/drivers/staging/gma500/cdv_intel_display.c b/drivers/staging/gma500/cdv_intel_display.c
index 7b97c600eff0..c63a32776a9e 100644
--- a/drivers/staging/gma500/cdv_intel_display.c
+++ b/drivers/staging/gma500/cdv_intel_display.c
@@ -507,9 +507,9 @@ int cdv_intel_pipe_set_base(struct drm_crtc *crtc,
 	if (ret < 0)
 		goto psb_intel_pipe_set_base_exit;
 	start = psbfb->gtt->offset;
-	offset = y * crtc->fb->pitch + x * (crtc->fb->bits_per_pixel / 8);
+	offset = y * crtc->fb->pitches[0] + x * (crtc->fb->bits_per_pixel / 8);
 
-	REG_WRITE(dspstride, crtc->fb->pitch);
+	REG_WRITE(dspstride, crtc->fb->pitches[0]);
 
 	dspcntr = REG_READ(dspcntr_reg);
 	dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
diff --git a/drivers/staging/gma500/framebuffer.c b/drivers/staging/gma500/framebuffer.c
index 3f39a37456fc..b00761cba144 100644
--- a/drivers/staging/gma500/framebuffer.c
+++ b/drivers/staging/gma500/framebuffer.c
@@ -32,6 +32,7 @@
 #include <drm/drmP.h>
 #include <drm/drm.h>
 #include <drm/drm_crtc.h>
+#include <drm/drm_fb_helper.h>
 
 #include "psb_drv.h"
 #include "psb_intel_reg.h"
@@ -273,14 +274,17 @@ static struct fb_ops psbfb_unaccel_ops = {
  */
 static int psb_framebuffer_init(struct drm_device *dev,
 					struct psb_framebuffer *fb,
-					struct drm_mode_fb_cmd *mode_cmd,
+					struct drm_mode_fb_cmd2 *mode_cmd,
 					struct gtt_range *gt)
 {
+	u32 bpp, depth;
 	int ret;
 
-	if (mode_cmd->pitch & 63)
+	drm_fb_get_bpp_depth(mode_cmd->pixel_format, &depth, &bpp);
+
+	if (mode_cmd->pitches[0] & 63)
 		return -EINVAL;
-	switch (mode_cmd->bpp) {
+	switch (bpp) {
 	case 8:
 	case 16:
 	case 24:
@@ -313,7 +317,7 @@ static int psb_framebuffer_init(struct drm_device *dev,
 
 static struct drm_framebuffer *psb_framebuffer_create
 			(struct drm_device *dev,
-			 struct drm_mode_fb_cmd *mode_cmd,
+			 struct drm_mode_fb_cmd2 *mode_cmd,
 			 struct gtt_range *gt)
 {
 	struct psb_framebuffer *fb;
@@ -387,27 +391,28 @@ static int psbfb_create(struct psb_fbdev *fbdev,
 	struct fb_info *info;
 	struct drm_framebuffer *fb;
 	struct psb_framebuffer *psbfb = &fbdev->pfb;
-	struct drm_mode_fb_cmd mode_cmd;
+	struct drm_mode_fb_cmd2 mode_cmd;
 	struct device *device = &dev->pdev->dev;
 	int size;
 	int ret;
 	struct gtt_range *backing;
 	int gtt_roll = 1;
+	u32 bpp, depth;
 
 	mode_cmd.width = sizes->surface_width;
 	mode_cmd.height = sizes->surface_height;
-	mode_cmd.bpp = sizes->surface_bpp;
+	bpp = sizes->surface_bpp;
 
 	/* No 24bit packed */
-	if (mode_cmd.bpp == 24)
-		mode_cmd.bpp = 32;
+	if (bpp == 24)
+		bpp = 32;
 
 	/* Acceleration via the GTT requires pitch to be 4096 byte aligned 
 	   (ie 1024 or 2048 pixels in normal use) */
-	mode_cmd.pitch =  ALIGN(mode_cmd.width * ((mode_cmd.bpp + 7) / 8), 4096);
-	mode_cmd.depth = sizes->surface_depth;
+	mode_cmd.pitches[0] =  ALIGN(mode_cmd.width * ((bpp + 7) / 8), 4096);
+	depth = sizes->surface_depth;
 
-	size = mode_cmd.pitch * mode_cmd.height;
+	size = mode_cmd.pitches[0] * mode_cmd.height;
 	size = ALIGN(size, PAGE_SIZE);
 
 	/* Allocate the framebuffer in the GTT with stolen page backing */
@@ -421,10 +426,10 @@ static int psbfb_create(struct psb_fbdev *fbdev,
 
 		gtt_roll = 0;	/* Don't use GTT accelerated scrolling */
 
-		mode_cmd.pitch =  ALIGN(mode_cmd.width * ((mode_cmd.bpp + 7) / 8), 64);
-		mode_cmd.depth = sizes->surface_depth;
+		mode_cmd.pitches[0] =  ALIGN(mode_cmd.width * ((bpp + 7) / 8), 64);
+		depth = sizes->surface_depth;
 
-		size = mode_cmd.pitch * mode_cmd.height;
+		size = mode_cmd.pitches[0] * mode_cmd.height;
 		size = ALIGN(size, PAGE_SIZE);
 
 		/* Allocate the framebuffer in the GTT with stolen page
@@ -443,6 +448,8 @@ static int psbfb_create(struct psb_fbdev *fbdev,
 	}
 	info->par = fbdev;
 
+	mode_cmd.pixel_format = drm_mode_legacy_fb_format(bpp, depth);
+
 	ret = psb_framebuffer_init(dev, psbfb, &mode_cmd, backing);
 	if (ret)
 		goto out_unref;
@@ -504,7 +511,7 @@ static int psbfb_create(struct psb_fbdev *fbdev,
 		info->apertures->ranges[0].size = dev_priv->gtt.stolen_size;
 	}
 
-	drm_fb_helper_fill_fix(info, fb->pitch, fb->depth);
+	drm_fb_helper_fill_fix(info, fb->pitches[0], fb->depth);
 	drm_fb_helper_fill_var(info, &fbdev->psb_fb_helper,
 				sizes->fb_width, sizes->fb_height);
 
@@ -546,7 +553,7 @@ out_err1:
  */
 static struct drm_framebuffer *psb_user_framebuffer_create
 			(struct drm_device *dev, struct drm_file *filp,
-			 struct drm_mode_fb_cmd *cmd)
+			 struct drm_mode_fb_cmd2 *cmd)
 {
 	struct gtt_range *r;
 	struct drm_gem_object *obj;
@@ -555,7 +562,7 @@ static struct drm_framebuffer *psb_user_framebuffer_create
 	 *	Find the GEM object and thus the gtt range object that is
 	 *	to back this space
 	 */
-	obj = drm_gem_object_lookup(dev, filp, cmd->handle);
+	obj = drm_gem_object_lookup(dev, filp, cmd->handles[0]);
 	if (obj == NULL)
 		return ERR_PTR(-ENOENT);
 
diff --git a/drivers/staging/gma500/mdfld_intel_display.c b/drivers/staging/gma500/mdfld_intel_display.c
index 8eb827ecc3d3..0b37b7b6b02a 100644
--- a/drivers/staging/gma500/mdfld_intel_display.c
+++ b/drivers/staging/gma500/mdfld_intel_display.c
@@ -390,9 +390,9 @@ int mdfld__intel_pipe_set_base(struct drm_crtc *crtc, int x, int y, struct drm_f
 	        goto psb_intel_pipe_set_base_exit;
 
 	start = psbfb->gtt->offset;
-	offset = y * crtc->fb->pitch + x * (crtc->fb->bits_per_pixel / 8);
+	offset = y * crtc->fb->pitches[0] + x * (crtc->fb->bits_per_pixel / 8);
 
-	REG_WRITE(dspstride, crtc->fb->pitch);
+	REG_WRITE(dspstride, crtc->fb->pitches[0]);
 	dspcntr = REG_READ(dspcntr_reg);
 	dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
 
diff --git a/drivers/staging/gma500/mrst_crtc.c b/drivers/staging/gma500/mrst_crtc.c
index c9311a573c28..980837e37d80 100644
--- a/drivers/staging/gma500/mrst_crtc.c
+++ b/drivers/staging/gma500/mrst_crtc.c
@@ -543,9 +543,9 @@ int mrst_pipe_set_base(struct drm_crtc *crtc,
 		return 0;
 
 	start = psbfb->gtt->offset;
-	offset = y * crtc->fb->pitch + x * (crtc->fb->bits_per_pixel / 8);
+	offset = y * crtc->fb->pitches[0] + x * (crtc->fb->bits_per_pixel / 8);
 
-	REG_WRITE(dspstride, crtc->fb->pitch);
+	REG_WRITE(dspstride, crtc->fb->pitches[0]);
 
 	dspcntr = REG_READ(dspcntr_reg);
 	dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
diff --git a/drivers/staging/gma500/power.c b/drivers/staging/gma500/power.c
index 436fe9733b16..408257038335 100644
--- a/drivers/staging/gma500/power.c
+++ b/drivers/staging/gma500/power.c
@@ -266,7 +266,7 @@ bool gma_power_begin(struct drm_device *dev, bool force_on)
 	ret = gma_resume_pci(dev->pdev);
 	if (ret == 0) {
 		/* FIXME: we want to defer this for Medfield/Oaktrail */
-		gma_resume_display(dev);
+		gma_resume_display(dev->pdev);
 		psb_irq_preinstall(dev);
 		psb_irq_postinstall(dev);
 		pm_runtime_get(&dev->pdev->dev);
diff --git a/drivers/staging/gma500/psb_drv.c b/drivers/staging/gma500/psb_drv.c
index 986a04d16ba8..95816808f867 100644
--- a/drivers/staging/gma500/psb_drv.c
+++ b/drivers/staging/gma500/psb_drv.c
@@ -1151,6 +1151,17 @@ static struct vm_operations_struct psb_gem_vm_ops = {
 	.close = drm_gem_vm_close,
 };
 
+static const struct file_operations gma500_driver_fops = {
+	.owner = THIS_MODULE,
+	.open = drm_open,
+	.release = drm_release,
+	.unlocked_ioctl = psb_unlocked_ioctl,
+	.mmap = drm_gem_mmap,
+	.poll = drm_poll,
+	.fasync = drm_fasync,
+	.read = drm_read,
+};
+
 static struct drm_driver driver = {
 	.driver_features = DRIVER_HAVE_IRQ | DRIVER_IRQ_SHARED | \
 			   DRIVER_IRQ_VBL | DRIVER_MODESET | DRIVER_GEM ,
@@ -1179,17 +1190,7 @@ static struct drm_driver driver = {
 	.dumb_create = psb_gem_dumb_create,
 	.dumb_map_offset = psb_gem_dumb_map_gtt,
 	.dumb_destroy = psb_gem_dumb_destroy,
-
-	.fops = {
-		 .owner = THIS_MODULE,
-		 .open = drm_open,
-		 .release = drm_release,
-		 .unlocked_ioctl = psb_unlocked_ioctl,
-		 .mmap = drm_gem_mmap,
-		 .poll = drm_poll,
-		 .fasync = drm_fasync,
-		 .read = drm_read,
-	 },
+	.fops = &gma500_driver_fops,
 	.name = DRIVER_NAME,
 	.desc = DRIVER_DESC,
 	.date = PSB_DRM_DRIVER_DATE,
diff --git a/drivers/staging/gma500/psb_intel_display.c b/drivers/staging/gma500/psb_intel_display.c
index caa9d86f26d8..85659613ae62 100644
--- a/drivers/staging/gma500/psb_intel_display.c
+++ b/drivers/staging/gma500/psb_intel_display.c
@@ -367,9 +367,9 @@ int psb_intel_pipe_set_base(struct drm_crtc *crtc,
 		goto psb_intel_pipe_set_base_exit;
 	start = psbfb->gtt->offset;
 
-	offset = y * crtc->fb->pitch + x * (crtc->fb->bits_per_pixel / 8);
+	offset = y * crtc->fb->pitches[0] + x * (crtc->fb->bits_per_pixel / 8);
 
-	REG_WRITE(dspstride, crtc->fb->pitch);
+	REG_WRITE(dspstride, crtc->fb->pitches[0]);
 
 	dspcntr = REG_READ(dspcntr_reg);
 	dspcntr &= ~DISPPLANE_PIXFORMAT_MASK;
diff --git a/drivers/staging/hv/Kconfig b/drivers/staging/hv/Kconfig
index 072185ebe95b..60ac479a2909 100644
--- a/drivers/staging/hv/Kconfig
+++ b/drivers/staging/hv/Kconfig
@@ -3,15 +3,3 @@ config HYPERV_STORAGE
 	depends on HYPERV && SCSI
 	help
 	 Select this option to enable the Hyper-V virtual storage driver.
-
-config HYPERV_NET
-	tristate "Microsoft Hyper-V virtual network driver"
-	depends on HYPERV && NET
-	help
-	  Select this option to enable the Hyper-V virtual network driver.
-
-config HYPERV_MOUSE
-	tristate "Microsoft Hyper-V mouse driver"
-	depends on HYPERV && HID
-	help
-	  Select this option to enable the Hyper-V mouse driver.
diff --git a/drivers/staging/hv/Makefile b/drivers/staging/hv/Makefile
index 0f55ceee919b..af95a6b7e436 100644
--- a/drivers/staging/hv/Makefile
+++ b/drivers/staging/hv/Makefile
@@ -1,6 +1,3 @@
 obj-$(CONFIG_HYPERV_STORAGE)	+= hv_storvsc.o
-obj-$(CONFIG_HYPERV_NET)	+= hv_netvsc.o
-obj-$(CONFIG_HYPERV_MOUSE)	+= hv_mouse.o
 
 hv_storvsc-y := storvsc_drv.o
-hv_netvsc-y := netvsc_drv.o netvsc.o rndis_filter.o
diff --git a/drivers/staging/hv/TODO b/drivers/staging/hv/TODO
index ed4d63619df2..dea7d92dfdc1 100644
--- a/drivers/staging/hv/TODO
+++ b/drivers/staging/hv/TODO
@@ -1,7 +1,5 @@
 TODO:
-	- audit the network driver
 	- audit the scsi driver
 
 Please send patches for this code to Greg Kroah-Hartman <gregkh@suse.de>,
-Hank Janssen <hjanssen@microsoft.com>, Haiyang Zhang <haiyangz@microsoft.com>,
-K. Y. Srinivasan <kys@microsoft.com>
+Haiyang Zhang <haiyangz@microsoft.com>, and K. Y. Srinivasan <kys@microsoft.com>
diff --git a/drivers/staging/hv/storvsc_drv.c b/drivers/staging/hv/storvsc_drv.c
index ae8c33e7849c..eb853f71089a 100644
--- a/drivers/staging/hv/storvsc_drv.c
+++ b/drivers/staging/hv/storvsc_drv.c
@@ -32,6 +32,7 @@
 #include <linux/module.h>
 #include <linux/device.h>
 #include <linux/hyperv.h>
+#include <linux/mempool.h>
 #include <scsi/scsi.h>
 #include <scsi/scsi_cmnd.h>
 #include <scsi/scsi_host.h>
@@ -42,6 +43,7 @@
 #include <scsi/scsi_dbg.h>
 
 
+#define STORVSC_MIN_BUF_NR				64
 #define STORVSC_RING_BUFFER_SIZE			(20*PAGE_SIZE)
 static int storvsc_ringbuffer_size = STORVSC_RING_BUFFER_SIZE;
 
@@ -78,7 +80,7 @@ MODULE_PARM_DESC(storvsc_ringbuffer_size, "Ring buffer size (bytes)");
 /* V1 Beta                    0.1 */
 /* V1 RC < 2008/1/31          1.0 */
 /* V1 RC > 2008/1/31          2.0 */
-#define VMSTOR_PROTOCOL_VERSION_CURRENT VMSTOR_PROTOCOL_VERSION(2, 0)
+#define VMSTOR_PROTOCOL_VERSION_CURRENT VMSTOR_PROTOCOL_VERSION(4, 2)
 
 
 
@@ -104,7 +106,8 @@ enum vstor_packet_operation {
 	VSTOR_OPERATION_END_INITIALIZATION	= 8,
 	VSTOR_OPERATION_QUERY_PROTOCOL_VERSION	= 9,
 	VSTOR_OPERATION_QUERY_PROPERTIES	= 10,
-	VSTOR_OPERATION_MAXIMUM			= 10
+	VSTOR_OPERATION_ENUMERATE_BUS		= 11,
+	VSTOR_OPERATION_MAXIMUM			= 11
 };
 
 /*
@@ -234,8 +237,6 @@ struct vstor_packet {
 #define STORVSC_MAX_CHANNELS				1
 #define STORVSC_MAX_CMD_LEN				16
 
-struct hv_storvsc_request;
-
 /* Matches Windows-end */
 enum storvsc_request_type {
 	WRITE_TYPE,
@@ -284,9 +285,13 @@ struct storvsc_device {
 	struct hv_storvsc_request reset_request;
 };
 
+struct stor_mem_pools {
+	struct kmem_cache *request_pool;
+	mempool_t *request_mempool;
+};
+
 struct hv_host_device {
 	struct hv_device *dev;
-	struct kmem_cache *request_pool;
 	unsigned int port;
 	unsigned char path;
 	unsigned char target;
@@ -302,6 +307,51 @@ struct storvsc_cmd_request {
 	struct hv_storvsc_request request;
 };
 
+struct storvsc_scan_work {
+	struct work_struct work;
+	struct Scsi_Host *host;
+	uint lun;
+};
+
+static void storvsc_bus_scan(struct work_struct *work)
+{
+	struct storvsc_scan_work *wrk;
+	int id, order_id;
+
+	wrk = container_of(work, struct storvsc_scan_work, work);
+	for (id = 0; id < wrk->host->max_id; ++id) {
+		if (wrk->host->reverse_ordering)
+			order_id = wrk->host->max_id - id - 1;
+		else
+			order_id = id;
+
+		scsi_scan_target(&wrk->host->shost_gendev, 0,
+				order_id, SCAN_WILD_CARD, 1);
+	}
+	kfree(wrk);
+}
+
+static void storvsc_remove_lun(struct work_struct *work)
+{
+	struct storvsc_scan_work *wrk;
+	struct scsi_device *sdev;
+
+	wrk = container_of(work, struct storvsc_scan_work, work);
+	if (!scsi_host_get(wrk->host))
+		goto done;
+
+	sdev = scsi_device_lookup(wrk->host, 0, 0, wrk->lun);
+
+	if (sdev) {
+		scsi_remove_device(sdev);
+		scsi_device_put(sdev);
+	}
+	scsi_host_put(wrk->host);
+
+done:
+	kfree(wrk);
+}
+
 static inline struct storvsc_device *get_out_stor_device(
 					struct hv_device *device)
 {
@@ -549,11 +599,25 @@ static void storvsc_on_receive(struct hv_device *device,
 			     struct vstor_packet *vstor_packet,
 			     struct hv_storvsc_request *request)
 {
+	struct storvsc_scan_work *work;
+	struct storvsc_device *stor_device;
+
 	switch (vstor_packet->operation) {
 	case VSTOR_OPERATION_COMPLETE_IO:
 		storvsc_on_io_completion(device, vstor_packet, request);
 		break;
+
 	case VSTOR_OPERATION_REMOVE_DEVICE:
+	case VSTOR_OPERATION_ENUMERATE_BUS:
+		stor_device = get_in_stor_device(device);
+		work = kmalloc(sizeof(struct storvsc_scan_work), GFP_ATOMIC);
+		if (!work)
+			return;
+
+		INIT_WORK(&work->work, storvsc_bus_scan);
+		work->host = stor_device->host;
+		schedule_work(&work->work);
+		break;
 
 	default:
 		break;
@@ -729,19 +793,48 @@ static void storvsc_get_ide_info(struct hv_device *dev, int *target, int *path)
 
 static int storvsc_device_alloc(struct scsi_device *sdevice)
 {
-	/*
-	 * This enables luns to be located sparsely. Otherwise, we may not
-	 * discovered them.
-	 */
-	sdevice->sdev_bflags |= BLIST_SPARSELUN | BLIST_LARGELUN;
+	struct stor_mem_pools *memp;
+	int number = STORVSC_MIN_BUF_NR;
+
+	memp = kzalloc(sizeof(struct stor_mem_pools), GFP_KERNEL);
+	if (!memp)
+		return -ENOMEM;
+
+	memp->request_pool =
+		kmem_cache_create(dev_name(&sdevice->sdev_dev),
+				sizeof(struct storvsc_cmd_request), 0,
+				SLAB_HWCACHE_ALIGN, NULL);
+
+	if (!memp->request_pool)
+		goto err0;
+
+	memp->request_mempool = mempool_create(number, mempool_alloc_slab,
+						mempool_free_slab,
+						memp->request_pool);
+
+	if (!memp->request_mempool)
+		goto err1;
+
+	sdevice->hostdata = memp;
+
 	return 0;
+
+err1:
+	kmem_cache_destroy(memp->request_pool);
+
+err0:
+	kfree(memp);
+	return -ENOMEM;
 }
 
-static int storvsc_merge_bvec(struct request_queue *q,
-			      struct bvec_merge_data *bmd, struct bio_vec *bvec)
+static void storvsc_device_destroy(struct scsi_device *sdevice)
 {
-	/* checking done by caller. */
-	return bvec->bv_len;
+	struct stor_mem_pools *memp = sdevice->hostdata;
+
+	mempool_destroy(memp->request_mempool);
+	kmem_cache_destroy(memp->request_pool);
+	kfree(memp);
+	sdevice->hostdata = NULL;
 }
 
 static int storvsc_device_configure(struct scsi_device *sdevice)
@@ -751,8 +844,6 @@ static int storvsc_device_configure(struct scsi_device *sdevice)
 
 	blk_queue_max_segment_size(sdevice->request_queue, PAGE_SIZE);
 
-	blk_queue_merge_bvec(sdevice->request_queue, storvsc_merge_bvec);
-
 	blk_queue_bounce_limit(sdevice->request_queue, BLK_BOUNCE_ANY);
 
 	return 0;
@@ -802,12 +893,14 @@ static int do_bounce_buffer(struct scatterlist *sgl, unsigned int sg_count)
 
 static struct scatterlist *create_bounce_buffer(struct scatterlist *sgl,
 						unsigned int sg_count,
-						unsigned int len)
+						unsigned int len,
+						int write)
 {
 	int i;
 	int num_pages;
 	struct scatterlist *bounce_sgl;
 	struct page *page_buf;
+	unsigned int buf_len = ((write == WRITE_TYPE) ? 0 : PAGE_SIZE);
 
 	num_pages = ALIGN(len, PAGE_SIZE) >> PAGE_SHIFT;
 
@@ -819,7 +912,7 @@ static struct scatterlist *create_bounce_buffer(struct scatterlist *sgl,
 		page_buf = alloc_page(GFP_ATOMIC);
 		if (!page_buf)
 			goto cleanup;
-		sg_set_page(&bounce_sgl[i], page_buf, 0, 0);
+		sg_set_page(&bounce_sgl[i], page_buf, buf_len, 0);
 	}
 
 	return bounce_sgl;
@@ -833,7 +926,8 @@ cleanup:
 /* Assume the original sgl has enough room */
 static unsigned int copy_from_bounce_buffer(struct scatterlist *orig_sgl,
 					    struct scatterlist *bounce_sgl,
-					    unsigned int orig_sgl_count)
+					    unsigned int orig_sgl_count,
+					    unsigned int bounce_sgl_count)
 {
 	int i;
 	int j = 0;
@@ -874,6 +968,24 @@ static unsigned int copy_from_bounce_buffer(struct scatterlist *orig_sgl,
 				kunmap_atomic((void *)bounce_addr, KM_IRQ0);
 				j++;
 
+				/*
+				 * It is possible that the number of elements
+				 * in the bounce buffer may not be equal to
+				 * the number of elements in the original
+				 * scatter list. Handle this correctly.
+				 */
+
+				if (j == bounce_sgl_count) {
+					/*
+					 * We are done; cleanup and return.
+					 */
+					kunmap_atomic((void *)(dest_addr -
+							orig_sgl[i].offset),
+							KM_IRQ0);
+					local_irq_restore(flags);
+					return total_copied;
+				}
+
 				/* if we need to use another bounce buffer */
 				if (destlen || i != orig_sgl_count - 1)
 					bounce_addr =
@@ -965,18 +1077,13 @@ static int storvsc_remove(struct hv_device *dev)
 {
 	struct storvsc_device *stor_device = hv_get_drvdata(dev);
 	struct Scsi_Host *host = stor_device->host;
-	struct hv_host_device *host_dev =
-			(struct hv_host_device *)host->hostdata;
 
 	scsi_remove_host(host);
 
 	scsi_host_put(host);
 
 	storvsc_dev_remove(dev);
-	if (host_dev->request_pool) {
-		kmem_cache_destroy(host_dev->request_pool);
-		host_dev->request_pool = NULL;
-	}
+
 	return 0;
 }
 
@@ -1014,7 +1121,7 @@ static int storvsc_host_reset(struct hv_device *device)
 
 	stor_device = get_out_stor_device(device);
 	if (!stor_device)
-		return -ENODEV;
+		return FAILED;
 
 	request = &stor_device->reset_request;
 	vstor_packet = &request->vstor_packet;
@@ -1031,13 +1138,11 @@ static int storvsc_host_reset(struct hv_device *device)
 			       VM_PKT_DATA_INBAND,
 			       VMBUS_DATA_PACKET_FLAG_COMPLETION_REQUESTED);
 	if (ret != 0)
-		goto cleanup;
+		return FAILED;
 
 	t = wait_for_completion_timeout(&request->wait_event, 5*HZ);
-	if (t == 0) {
-		ret = -ETIMEDOUT;
-		goto cleanup;
-	}
+	if (t == 0)
+		return TIMEOUT_ERROR;
 
 
 	/*
@@ -1045,8 +1150,7 @@ static int storvsc_host_reset(struct hv_device *device)
 	 * should have been flushed out and return to us
 	 */
 
-cleanup:
-	return ret;
+	return SUCCESS;
 }
 
 
@@ -1055,16 +1159,10 @@ cleanup:
  */
 static int storvsc_host_reset_handler(struct scsi_cmnd *scmnd)
 {
-	int ret;
-	struct hv_host_device *host_dev =
-		(struct hv_host_device *)scmnd->device->host->hostdata;
+	struct hv_host_device *host_dev = shost_priv(scmnd->device->host);
 	struct hv_device *dev = host_dev->dev;
 
-	ret = storvsc_host_reset(dev);
-	if (ret != 0)
-		return ret;
-
-	return ret;
+	return storvsc_host_reset(dev);
 }
 
 
@@ -1076,21 +1174,22 @@ static void storvsc_command_completion(struct hv_storvsc_request *request)
 	struct storvsc_cmd_request *cmd_request =
 		(struct storvsc_cmd_request *)request->context;
 	struct scsi_cmnd *scmnd = cmd_request->cmd;
-	struct hv_host_device *host_dev =
-		(struct hv_host_device *)scmnd->device->host->hostdata;
+	struct hv_host_device *host_dev = shost_priv(scmnd->device->host);
 	void (*scsi_done_fn)(struct scsi_cmnd *);
 	struct scsi_sense_hdr sense_hdr;
 	struct vmscsi_request *vm_srb;
+	struct storvsc_scan_work *wrk;
+	struct stor_mem_pools *memp = scmnd->device->hostdata;
 
 	vm_srb = &request->vstor_packet.vm_srb;
 	if (cmd_request->bounce_sgl_count) {
-		if (vm_srb->data_in == READ_TYPE) {
+		if (vm_srb->data_in == READ_TYPE)
 			copy_from_bounce_buffer(scsi_sglist(scmnd),
 					cmd_request->bounce_sgl,
-					scsi_sg_count(scmnd));
-			destroy_bounce_buffer(cmd_request->bounce_sgl,
+					scsi_sg_count(scmnd),
+					cmd_request->bounce_sgl_count);
+		destroy_bounce_buffer(cmd_request->bounce_sgl,
 					cmd_request->bounce_sgl_count);
-		}
 	}
 
 	/*
@@ -1103,6 +1202,29 @@ static void storvsc_command_completion(struct hv_storvsc_request *request)
 	else
 		scmnd->result = vm_srb->scsi_status;
 
+	/*
+	 * If the LUN is invalid; remove the device.
+	 */
+	if (vm_srb->srb_status == 0x20) {
+		struct storvsc_device *stor_dev;
+		struct hv_device *dev = host_dev->dev;
+		struct Scsi_Host *host;
+
+		stor_dev = get_in_stor_device(dev);
+		host = stor_dev->host;
+
+		wrk = kmalloc(sizeof(struct storvsc_scan_work),
+				GFP_ATOMIC);
+		if (!wrk) {
+			scmnd->result = DID_TARGET_FAILURE << 16;
+		} else {
+			wrk->host = host;
+			wrk->lun = vm_srb->lun;
+			INIT_WORK(&wrk->work, storvsc_remove_lun);
+			schedule_work(&wrk->work);
+		}
+	}
+
 	if (scmnd->result) {
 		if (scsi_normalize_sense(scmnd->sense_buffer,
 				SCSI_SENSE_BUFFERSIZE, &sense_hdr))
@@ -1120,7 +1242,7 @@ static void storvsc_command_completion(struct hv_storvsc_request *request)
 
 	scsi_done_fn(scmnd);
 
-	kmem_cache_free(host_dev->request_pool, cmd_request);
+	mempool_free(cmd_request, memp->request_mempool);
 }
 
 static bool storvsc_check_scsi_cmd(struct scsi_cmnd *scmnd)
@@ -1131,7 +1253,7 @@ static bool storvsc_check_scsi_cmd(struct scsi_cmnd *scmnd)
 	switch (scsi_op) {
 	/* smartd sends this command, which will offline the device */
 	case SET_WINDOW:
-		scmnd->result = DID_ERROR << 16;
+		scmnd->result = ILLEGAL_REQUEST << 16;
 		allowed = false;
 		break;
 	default:
@@ -1143,12 +1265,10 @@ static bool storvsc_check_scsi_cmd(struct scsi_cmnd *scmnd)
 /*
  * storvsc_queuecommand - Initiate command processing
  */
-static int storvsc_queuecommand_lck(struct scsi_cmnd *scmnd,
-				void (*done)(struct scsi_cmnd *))
+static int storvsc_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *scmnd)
 {
 	int ret;
-	struct hv_host_device *host_dev =
-		(struct hv_host_device *)scmnd->device->host->hostdata;
+	struct hv_host_device *host_dev = shost_priv(host);
 	struct hv_device *dev = host_dev->dev;
 	struct hv_storvsc_request *request;
 	struct storvsc_cmd_request *cmd_request;
@@ -1157,9 +1277,10 @@ static int storvsc_queuecommand_lck(struct scsi_cmnd *scmnd,
 	struct scatterlist *sgl;
 	unsigned int sg_count = 0;
 	struct vmscsi_request *vm_srb;
+	struct stor_mem_pools *memp = scmnd->device->hostdata;
 
 	if (storvsc_check_scsi_cmd(scmnd) == false) {
-		done(scmnd);
+		scmnd->scsi_done(scmnd);
 		return 0;
 	}
 
@@ -1172,16 +1293,14 @@ static int storvsc_queuecommand_lck(struct scsi_cmnd *scmnd,
 		goto retry_request;
 	}
 
-	scmnd->scsi_done = done;
-
 	request_size = sizeof(struct storvsc_cmd_request);
 
-	cmd_request = kmem_cache_zalloc(host_dev->request_pool,
+	cmd_request = mempool_alloc(memp->request_mempool,
 				       GFP_ATOMIC);
-	if (!cmd_request) {
-		scmnd->scsi_done = NULL;
+	if (!cmd_request)
 		return SCSI_MLQUEUE_DEVICE_BUSY;
-	}
+
+	memset(cmd_request, 0, sizeof(struct storvsc_cmd_request));
 
 	/* Setup the cmd request */
 	cmd_request->bounce_sgl_count = 0;
@@ -1231,12 +1350,12 @@ static int storvsc_queuecommand_lck(struct scsi_cmnd *scmnd,
 		if (do_bounce_buffer(sgl, scsi_sg_count(scmnd)) != -1) {
 			cmd_request->bounce_sgl =
 				create_bounce_buffer(sgl, scsi_sg_count(scmnd),
-						     scsi_bufflen(scmnd));
+						     scsi_bufflen(scmnd),
+						     vm_srb->data_in);
 			if (!cmd_request->bounce_sgl) {
-				scmnd->scsi_done = NULL;
 				scmnd->host_scribble = NULL;
-				kmem_cache_free(host_dev->request_pool,
-						cmd_request);
+				mempool_free(cmd_request,
+						memp->request_mempool);
 
 				return SCSI_MLQUEUE_HOST_BUSY;
 			}
@@ -1278,9 +1397,8 @@ retry_request:
 			destroy_bounce_buffer(cmd_request->bounce_sgl,
 					cmd_request->bounce_sgl_count);
 
-		kmem_cache_free(host_dev->request_pool, cmd_request);
+		mempool_free(cmd_request, memp->request_mempool);
 
-		scmnd->scsi_done = NULL;
 		scmnd->host_scribble = NULL;
 
 		ret = SCSI_MLQUEUE_DEVICE_BUSY;
@@ -1289,9 +1407,6 @@ retry_request:
 	return ret;
 }
 
-static DEF_SCSI_QCMD(storvsc_queuecommand)
-
-
 /* Scsi driver */
 static struct scsi_host_template scsi_driver = {
 	.module	=		THIS_MODULE,
@@ -1300,6 +1415,7 @@ static struct scsi_host_template scsi_driver = {
 	.queuecommand =		storvsc_queuecommand,
 	.eh_host_reset_handler =	storvsc_host_reset_handler,
 	.slave_alloc =		storvsc_device_alloc,
+	.slave_destroy =	storvsc_device_destroy,
 	.slave_configure =	storvsc_device_configure,
 	.cmd_per_lun =		1,
 	/* 64 max_queue * 1 target */
@@ -1308,14 +1424,7 @@ static struct scsi_host_template scsi_driver = {
 	/* no use setting to 0 since ll_blk_rw reset it to 1 */
 	/* currently 32 */
 	.sg_tablesize =		MAX_MULTIPAGE_BUFFER_COUNT,
-	/*
-	 * ENABLE_CLUSTERING allows mutiple physically contig bio_vecs to merge
-	 * into 1 sg element. If set, we must limit the max_segment_size to
-	 * PAGE_SIZE, otherwise we may get 1 sg element that represents
-	 * multiple
-	 */
-	/* physically contig pfns (ie sg[x].length > PAGE_SIZE). */
-	.use_clustering =	ENABLE_CLUSTERING,
+	.use_clustering =	DISABLE_CLUSTERING,
 	/* Make sure we dont get a sg segment crosses a page boundary */
 	.dma_boundary =		PAGE_SIZE-1,
 };
@@ -1360,27 +1469,17 @@ static int storvsc_probe(struct hv_device *device,
 	if (!host)
 		return -ENOMEM;
 
-	host_dev = (struct hv_host_device *)host->hostdata;
+	host_dev = shost_priv(host);
 	memset(host_dev, 0, sizeof(struct hv_host_device));
 
 	host_dev->port = host->host_no;
 	host_dev->dev = device;
 
-	host_dev->request_pool =
-				kmem_cache_create(dev_name(&device->device),
-					sizeof(struct storvsc_cmd_request), 0,
-					SLAB_HWCACHE_ALIGN, NULL);
-
-	if (!host_dev->request_pool) {
-		scsi_host_put(host);
-		return -ENOMEM;
-	}
 
 	stor_device = kzalloc(sizeof(struct storvsc_device), GFP_KERNEL);
 	if (!stor_device) {
-		kmem_cache_destroy(host_dev->request_pool);
-		scsi_host_put(host);
-		return -ENOMEM;
+		ret = -ENOMEM;
+		goto err_out0;
 	}
 
 	stor_device->destroy = false;
@@ -1391,12 +1490,8 @@ static int storvsc_probe(struct hv_device *device,
 
 	stor_device->port_number = host->host_no;
 	ret = storvsc_connect_to_vsp(device, storvsc_ringbuffer_size);
-	if (ret) {
-		kmem_cache_destroy(host_dev->request_pool);
-		scsi_host_put(host);
-		kfree(stor_device);
-		return ret;
-	}
+	if (ret)
+		goto err_out1;
 
 	if (dev_is_ide)
 		storvsc_get_ide_info(device, &target, &path);
@@ -1416,7 +1511,7 @@ static int storvsc_probe(struct hv_device *device,
 	/* Register the HBA and start the scsi bus scan */
 	ret = scsi_add_host(host, &device->device);
 	if (ret != 0)
-		goto err_out;
+		goto err_out2;
 
 	if (!dev_is_ide) {
 		scsi_scan_host(host);
@@ -1425,21 +1520,32 @@ static int storvsc_probe(struct hv_device *device,
 	ret = scsi_add_device(host, 0, target, 0);
 	if (ret) {
 		scsi_remove_host(host);
-		goto err_out;
+		goto err_out2;
 	}
 	return 0;
 
-err_out:
+err_out2:
+	/*
+	 * Once we have connected with the host, we would need to
+	 * to invoke storvsc_dev_remove() to rollback this state and
+	 * this call also frees up the stor_device; hence the jump around
+	 * err_out1 label.
+	 */
 	storvsc_dev_remove(device);
-	kmem_cache_destroy(host_dev->request_pool);
+	goto err_out0;
+
+err_out1:
+	kfree(stor_device);
+
+err_out0:
 	scsi_host_put(host);
-	return -ENODEV;
+	return ret;
 }
 
 /* The one and only one */
 
 static struct hv_driver storvsc_drv = {
-	.name = "storvsc",
+	.name = KBUILD_MODNAME,
 	.id_table = id_table,
 	.probe = storvsc_probe,
 	.remove = storvsc_remove,
diff --git a/drivers/staging/iio/Documentation/generic_buffer.c b/drivers/staging/iio/Documentation/generic_buffer.c
index d58095321491..69a05b9456d6 100644
--- a/drivers/staging/iio/Documentation/generic_buffer.c
+++ b/drivers/staging/iio/Documentation/generic_buffer.c
@@ -28,6 +28,7 @@
 #include <linux/types.h>
 #include <string.h>
 #include <poll.h>
+#include <endian.h>
 #include "iio_utils.h"
 
 /**
@@ -56,6 +57,13 @@ int size_from_channelarray(struct iio_channel_info *channels, int num_channels)
 
 void print2byte(int input, struct iio_channel_info *info)
 {
+	/* First swap if incorrect endian */
+
+	if (info->be)
+		input = be16toh((uint_16t)input);
+	else
+		input = le16toh((uint_16t)input);
+
 	/* shift before conversion to avoid sign extension
 	   of left aligned data */
 	input = input >> info->shift;
diff --git a/drivers/staging/iio/Documentation/iio_utils.h b/drivers/staging/iio/Documentation/iio_utils.h
index 75938b2412ff..6f3a392297ec 100644
--- a/drivers/staging/iio/Documentation/iio_utils.h
+++ b/drivers/staging/iio/Documentation/iio_utils.h
@@ -13,6 +13,7 @@
 #include <ctype.h>
 #include <stdio.h>
 #include <stdint.h>
+#include <dirent.h>
 
 #define IIO_MAX_NAME_LENGTH 30
 
@@ -73,6 +74,7 @@ struct iio_channel_info {
 	unsigned bits_used;
 	unsigned shift;
 	uint64_t mask;
+	unsigned be;
 	unsigned is_signed;
 	unsigned enabled;
 	unsigned location;
@@ -83,6 +85,7 @@ struct iio_channel_info {
  * @is_signed: output whether channel is signed
  * @bytes: output how many bytes the channel storage occupies
  * @mask: output a bit mask for the raw data
+ * @be: big endian
  * @device_dir: the iio device directory
  * @name: the channel name
  * @generic_name: the channel type name
@@ -92,6 +95,7 @@ inline int iioutils_get_type(unsigned *is_signed,
 			     unsigned *bits_used,
 			     unsigned *shift,
 			     uint64_t *mask,
+			     unsigned *be,
 			     const char *device_dir,
 			     const char *name,
 			     const char *generic_name)
@@ -100,7 +104,7 @@ inline int iioutils_get_type(unsigned *is_signed,
 	int ret;
 	DIR *dp;
 	char *scan_el_dir, *builtname, *builtname_generic, *filename = 0;
-	char signchar;
+	char signchar, endianchar;
 	unsigned padint;
 	const struct dirent *ent;
 
@@ -144,9 +148,18 @@ inline int iioutils_get_type(unsigned *is_signed,
 				ret = -errno;
 				goto error_free_filename;
 			}
-			fscanf(sysfsfp,
-			       "%c%u/%u>>%u", &signchar, bits_used,
-			       &padint, shift);
+
+			ret = fscanf(sysfsfp,
+				     "%ce:%c%u/%u>>%u",
+				     &endianchar,
+				     &signchar,
+				     bits_used,
+				     &padint, shift);
+			if (ret < 0) {
+				printf("failed to pass scan type description\n");
+				return ret;
+			}
+			*be = (endianchar == 'b');
 			*bytes = padint / 8;
 			if (*bits_used == 64)
 				*mask = ~0;
@@ -156,6 +169,10 @@ inline int iioutils_get_type(unsigned *is_signed,
 				*is_signed = 1;
 			else
 				*is_signed = 0;
+			fclose(sysfsfp);
+			free(filename);
+
+			filename = 0;
 		}
 error_free_filename:
 	if (filename)
@@ -386,6 +403,7 @@ inline int build_channel_array(const char *device_dir,
 						&current->bits_used,
 						&current->shift,
 						&current->mask,
+						&current->be,
 						device_dir,
 						current->name,
 						current->generic_name);
diff --git a/drivers/staging/iio/Documentation/ring.txt b/drivers/staging/iio/Documentation/ring.txt
index 7e99ef2b7bc0..e33807761cd7 100644
--- a/drivers/staging/iio/Documentation/ring.txt
+++ b/drivers/staging/iio/Documentation/ring.txt
@@ -23,10 +23,6 @@ The function pointers within here are used to allow the core to handle
 as much buffer functionality as possible. Note almost all of these
 are optional.
 
-mark_in_use, unmark_in_use
-  Basically indicate that not changes should be made to the buffer state that
-  will effect the form of the data being captures (e.g. scan elements or length)
-
 store_to
   If possible, push data to the buffer.
 
@@ -39,8 +35,6 @@ rip_first_n
   The primary buffer reading function. Note that it may well not return
   as much data as requested.
 
-mark_param_changed
-  Used to indicate that something has changed. Used in conjunction with
 request_update
   If parameters have changed that require reinitialization or configuration of
   the buffer this will trigger it.
@@ -51,7 +45,3 @@ get_bytes_per_datum, set_bytes_per_datum
 get_length / set_length
   Get/set the number of complete scans that may be held by the buffer.
 
-is_enabled
-  Query if ring buffer is in use
-enable
-  Start the ring buffer.
diff --git a/drivers/staging/iio/Documentation/sysfs-bus-iio b/drivers/staging/iio/Documentation/sysfs-bus-iio
index 0d6823d19b61..46a995d6d261 100644
--- a/drivers/staging/iio/Documentation/sysfs-bus-iio
+++ b/drivers/staging/iio/Documentation/sysfs-bus-iio
@@ -276,6 +276,16 @@ Description:
 		If a discrete set of scale values are available, they
 		are listed in this attribute.
 
+What:		/sys/.../in_accel_filter_low_pass_3db_frequency
+What:		/sys/.../in_magn_filter_low_pass_3db_frequency
+What:		/sys/.../in_anglvel_filter_low_pass_3db_frequency
+KernelVersion:	3.2
+Contact:	linux-iio@vger.kernel.org
+Description:
+		If a known or controllable low pass filter is applied
+		to the underlying data channel, then this parameter
+		gives the 3dB frequency of the filter in Hz.
+
 What:		/sys/bus/iio/devices/iio:deviceX/out_voltageY_raw
 KernelVersion:	2.6.37
 Contact:	linux-iio@vger.kernel.org
diff --git a/drivers/staging/iio/Kconfig b/drivers/staging/iio/Kconfig
index 4ec9118955f9..90162aa8b2df 100644
--- a/drivers/staging/iio/Kconfig
+++ b/drivers/staging/iio/Kconfig
@@ -76,7 +76,6 @@ config IIO_DUMMY_EVGEN
 
 config IIO_SIMPLE_DUMMY
        tristate "An example driver with no hardware requirements"
-       select IIO_SIMPLE_DUMMY_EVGEN if IIO_SIMPLE_DUMMY_EVENTS
        help
 	 Driver intended mainly as documentation for how to write
 	 a driver. May also be useful for testing userspace code
diff --git a/drivers/staging/iio/accel/adis16201_core.c b/drivers/staging/iio/accel/adis16201_core.c
index 97f747eac647..d439e45d07fa 100644
--- a/drivers/staging/iio/accel/adis16201_core.c
+++ b/drivers/staging/iio/accel/adis16201_core.c
@@ -17,7 +17,7 @@
 
 #include "../iio.h"
 #include "../sysfs.h"
-#include "../buffer_generic.h"
+#include "../buffer.h"
 
 #include "adis16201.h"
 
@@ -322,8 +322,7 @@ static int adis16201_read_raw(struct iio_dev *indio_dev,
 		*val = val16;
 		mutex_unlock(&indio_dev->mlock);
 		return IIO_VAL_INT;
-	case (1 << IIO_CHAN_INFO_SCALE_SEPARATE):
-	case (1 << IIO_CHAN_INFO_SCALE_SHARED):
+	case IIO_CHAN_INFO_SCALE:
 		switch (chan->type) {
 		case IIO_VOLTAGE:
 			*val = 0;
@@ -348,10 +347,10 @@ static int adis16201_read_raw(struct iio_dev *indio_dev,
 			return -EINVAL;
 		}
 		break;
-	case (1 << IIO_CHAN_INFO_OFFSET_SEPARATE):
+	case IIO_CHAN_INFO_OFFSET:
 		*val = 25;
 		return IIO_VAL_INT;
-	case (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE):
+	case IIO_CHAN_INFO_CALIBBIAS:
 		switch (chan->type) {
 		case IIO_ACCEL:
 			bits = 12;
@@ -388,7 +387,7 @@ static int adis16201_write_raw(struct iio_dev *indio_dev,
 	s16 val16;
 	u8 addr;
 	switch (mask) {
-	case (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE):
+	case IIO_CHAN_INFO_CALIBBIAS:
 		switch (chan->type) {
 		case IIO_ACCEL:
 			bits = 12;
@@ -408,36 +407,36 @@ static int adis16201_write_raw(struct iio_dev *indio_dev,
 
 static struct iio_chan_spec adis16201_channels[] = {
 	IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, "supply", 0, 0,
-		 (1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+		 IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 		 in_supply, ADIS16201_SCAN_SUPPLY,
 		 IIO_ST('u', 12, 16, 0), 0),
 	IIO_CHAN(IIO_TEMP, 0, 1, 0, NULL, 0, 0,
-		 (1 << IIO_CHAN_INFO_SCALE_SEPARATE) |
-		 (1 << IIO_CHAN_INFO_OFFSET_SEPARATE),
+		 IIO_CHAN_INFO_SCALE_SEPARATE_BIT |
+		 IIO_CHAN_INFO_OFFSET_SEPARATE_BIT,
 		 temp, ADIS16201_SCAN_TEMP,
 		 IIO_ST('u', 12, 16, 0), 0),
 	IIO_CHAN(IIO_ACCEL, 1, 0, 0, NULL, 0, IIO_MOD_X,
-		 (1 << IIO_CHAN_INFO_SCALE_SHARED) |
-		 (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE),
+		 IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		 IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT,
 		 accel_x, ADIS16201_SCAN_ACC_X,
 		 IIO_ST('s', 14, 16, 0), 0),
 	IIO_CHAN(IIO_ACCEL, 1, 0, 0, NULL, 0, IIO_MOD_Y,
-		 (1 << IIO_CHAN_INFO_SCALE_SHARED) |
-		 (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE),
+		 IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		 IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT,
 		 accel_y, ADIS16201_SCAN_ACC_Y,
 		 IIO_ST('s', 14, 16, 0), 0),
 	IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 1, 0,
-		 (1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+		 IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 		 in_aux, ADIS16201_SCAN_AUX_ADC,
 		 IIO_ST('u', 12, 16, 0), 0),
 	IIO_CHAN(IIO_INCLI, 1, 0, 0, NULL, 0, IIO_MOD_X,
-		 (1 << IIO_CHAN_INFO_SCALE_SHARED) |
-		 (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE),
+		 IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		 IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT,
 		 incli_x, ADIS16201_SCAN_INCLI_X,
 		 IIO_ST('s', 14, 16, 0), 0),
 	IIO_CHAN(IIO_INCLI, 1, 0, 0, NULL, 0, IIO_MOD_Y,
-		 (1 << IIO_CHAN_INFO_SCALE_SHARED) |
-		 (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE),
+		 IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		 IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT,
 		 incli_y, ADIS16201_SCAN_INCLI_Y,
 		 IIO_ST('s', 14, 16, 0), 0),
 	IIO_CHAN_SOFT_TIMESTAMP(7)
@@ -554,3 +553,4 @@ module_spi_driver(adis16201_driver);
 MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
 MODULE_DESCRIPTION("Analog Devices ADIS16201 Programmable Digital Vibration Sensor driver");
 MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("spi:adis16201");
diff --git a/drivers/staging/iio/accel/adis16201_ring.c b/drivers/staging/iio/accel/adis16201_ring.c
index 0016ed378e3a..26c610faee3f 100644
--- a/drivers/staging/iio/accel/adis16201_ring.c
+++ b/drivers/staging/iio/accel/adis16201_ring.c
@@ -74,11 +74,11 @@ static irqreturn_t adis16201_trigger_handler(int irq, void *p)
 		return -ENOMEM;
 	}
 
-	if (ring->scan_count)
-		if (adis16201_read_ring_data(indio_dev, st->rx) >= 0)
-			for (; i < ring->scan_count; i++)
-				data[i] = be16_to_cpup(
-					(__be16 *)&(st->rx[i*2]));
+	if (!bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength)
+	    && adis16201_read_ring_data(indio_dev, st->rx) >= 0)
+		for (; i < bitmap_weight(indio_dev->active_scan_mask,
+					 indio_dev->masklength); i++)
+			data[i] = be16_to_cpup((__be16 *)&(st->rx[i*2]));
 
 	/* Guaranteed to be aligned with 8 byte boundary */
 	if (ring->scan_timestamp)
@@ -116,11 +116,9 @@ int adis16201_configure_ring(struct iio_dev *indio_dev)
 	}
 	indio_dev->buffer = ring;
 	/* Effectively select the ring buffer implementation */
-	ring->bpe = 2;
 	ring->scan_timestamp = true;
 	ring->access = &ring_sw_access_funcs;
-	ring->setup_ops = &adis16201_ring_setup_ops;
-	ring->owner = THIS_MODULE;
+	indio_dev->setup_ops = &adis16201_ring_setup_ops;
 
 	indio_dev->pollfunc = iio_alloc_pollfunc(&iio_pollfunc_store_time,
 						 &adis16201_trigger_handler,
diff --git a/drivers/staging/iio/accel/adis16203_core.c b/drivers/staging/iio/accel/adis16203_core.c
index a6d6d27f3c97..1a5140f9e3f4 100644
--- a/drivers/staging/iio/accel/adis16203_core.c
+++ b/drivers/staging/iio/accel/adis16203_core.c
@@ -17,7 +17,7 @@
 
 #include "../iio.h"
 #include "../sysfs.h"
-#include "../buffer_generic.h"
+#include "../buffer.h"
 
 #include "adis16203.h"
 
@@ -329,8 +329,7 @@ static int adis16203_read_raw(struct iio_dev *indio_dev,
 		*val = val16;
 		mutex_unlock(&indio_dev->mlock);
 		return IIO_VAL_INT;
-	case (1 << IIO_CHAN_INFO_SCALE_SEPARATE):
-	case (1 << IIO_CHAN_INFO_SCALE_SHARED):
+	case IIO_CHAN_INFO_SCALE:
 		switch (chan->type) {
 		case IIO_VOLTAGE:
 			*val = 0;
@@ -350,10 +349,10 @@ static int adis16203_read_raw(struct iio_dev *indio_dev,
 		default:
 			return -EINVAL;
 		}
-	case (1 << IIO_CHAN_INFO_OFFSET_SEPARATE):
+	case IIO_CHAN_INFO_OFFSET:
 		*val = 25;
 		return IIO_VAL_INT;
-	case (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE):
+	case IIO_CHAN_INFO_CALIBBIAS:
 		bits = 14;
 		mutex_lock(&indio_dev->mlock);
 		addr = adis16203_addresses[chan->address][1];
@@ -374,26 +373,26 @@ static int adis16203_read_raw(struct iio_dev *indio_dev,
 
 static struct iio_chan_spec adis16203_channels[] = {
 	IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, "supply", 0, 0,
-		 (1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+		 IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 		 in_supply, ADIS16203_SCAN_SUPPLY,
 		 IIO_ST('u', 12, 16, 0), 0),
 	IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 1, 0,
-		 (1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+		 IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 		 in_aux, ADIS16203_SCAN_AUX_ADC,
 		 IIO_ST('u', 12, 16, 0), 0),
 	IIO_CHAN(IIO_INCLI, 1, 0, 0, NULL, 0, IIO_MOD_X,
-		 (1 << IIO_CHAN_INFO_SCALE_SHARED) |
-		 (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE),
+		 IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		 IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT,
 		 incli_x, ADIS16203_SCAN_INCLI_X,
 		 IIO_ST('s', 14, 16, 0), 0),
 	/* Fixme: Not what it appears to be - see data sheet */
 	IIO_CHAN(IIO_INCLI, 1, 0, 0, NULL, 0, IIO_MOD_Y,
-		 (1 << IIO_CHAN_INFO_SCALE_SHARED),
+		 IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		 incli_y, ADIS16203_SCAN_INCLI_Y,
 		 IIO_ST('s', 14, 16, 0), 0),
 	IIO_CHAN(IIO_TEMP, 0, 1, 0, NULL, 0, 0,
-		 (1 << IIO_CHAN_INFO_SCALE_SEPARATE) |
-		 (1 << IIO_CHAN_INFO_OFFSET_SEPARATE),
+		 IIO_CHAN_INFO_SCALE_SEPARATE_BIT |
+		 IIO_CHAN_INFO_OFFSET_SEPARATE_BIT,
 		 temp, ADIS16203_SCAN_TEMP,
 		 IIO_ST('u', 12, 16, 0), 0),
 	IIO_CHAN_SOFT_TIMESTAMP(5),
@@ -509,3 +508,4 @@ module_spi_driver(adis16203_driver);
 MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
 MODULE_DESCRIPTION("Analog Devices ADIS16203 Programmable Digital Vibration Sensor driver");
 MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("spi:adis16203");
diff --git a/drivers/staging/iio/accel/adis16203_ring.c b/drivers/staging/iio/accel/adis16203_ring.c
index 1fdfe6f6ac6e..064640d15e41 100644
--- a/drivers/staging/iio/accel/adis16203_ring.c
+++ b/drivers/staging/iio/accel/adis16203_ring.c
@@ -74,11 +74,11 @@ static irqreturn_t adis16203_trigger_handler(int irq, void *p)
 		return -ENOMEM;
 	}
 
-	if (ring->scan_count)
-		if (adis16203_read_ring_data(&indio_dev->dev, st->rx) >= 0)
-			for (; i < ring->scan_count; i++)
-				data[i] = be16_to_cpup(
-					(__be16 *)&(st->rx[i*2]));
+	if (!bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength) &&
+	    adis16203_read_ring_data(&indio_dev->dev, st->rx) >= 0)
+		for (; i < bitmap_weight(indio_dev->active_scan_mask,
+					 indio_dev->masklength); i++)
+			data[i] = be16_to_cpup((__be16 *)&(st->rx[i*2]));
 
 	/* Guaranteed to be aligned with 8 byte boundary */
 	if (ring->scan_timestamp)
@@ -118,11 +118,9 @@ int adis16203_configure_ring(struct iio_dev *indio_dev)
 	}
 	indio_dev->buffer = ring;
 	/* Effectively select the ring buffer implementation */
-	ring->bpe = 2;
 	ring->scan_timestamp = true;
 	ring->access = &ring_sw_access_funcs;
-	ring->setup_ops = &adis16203_ring_setup_ops;
-	ring->owner = THIS_MODULE;
+	indio_dev->setup_ops = &adis16203_ring_setup_ops;
 
 	indio_dev->pollfunc = iio_alloc_pollfunc(&iio_pollfunc_store_time,
 						 &adis16203_trigger_handler,
diff --git a/drivers/staging/iio/accel/adis16204_core.c b/drivers/staging/iio/accel/adis16204_core.c
index 7ac5b4c533d8..fa89364b841e 100644
--- a/drivers/staging/iio/accel/adis16204_core.c
+++ b/drivers/staging/iio/accel/adis16204_core.c
@@ -20,7 +20,7 @@
 
 #include "../iio.h"
 #include "../sysfs.h"
-#include "../buffer_generic.h"
+#include "../buffer.h"
 
 #include "adis16204.h"
 
@@ -366,7 +366,7 @@ static int adis16204_read_raw(struct iio_dev *indio_dev,
 		*val = val16;
 		mutex_unlock(&indio_dev->mlock);
 		return IIO_VAL_INT;
-	case (1 << IIO_CHAN_INFO_SCALE_SEPARATE):
+	case IIO_CHAN_INFO_SCALE:
 		switch (chan->type) {
 		case IIO_VOLTAGE:
 			*val = 0;
@@ -390,12 +390,12 @@ static int adis16204_read_raw(struct iio_dev *indio_dev,
 			return -EINVAL;
 		}
 		break;
-	case (1 << IIO_CHAN_INFO_OFFSET_SEPARATE):
+	case IIO_CHAN_INFO_OFFSET:
 		*val = 25;
 		return IIO_VAL_INT;
-	case (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE):
-	case (1 << IIO_CHAN_INFO_PEAK_SEPARATE):
-		if (mask == (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE)) {
+	case IIO_CHAN_INFO_CALIBBIAS:
+	case IIO_CHAN_INFO_PEAK:
+		if (mask == IIO_CHAN_INFO_CALIBBIAS) {
 			bits = 12;
 			addrind = 1;
 		} else { /* PEAK_SEPARATE */
@@ -428,7 +428,7 @@ static int adis16204_write_raw(struct iio_dev *indio_dev,
 	s16 val16;
 	u8 addr;
 	switch (mask) {
-	case (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE):
+	case IIO_CHAN_INFO_CALIBBIAS:
 		switch (chan->type) {
 		case IIO_ACCEL:
 			bits = 12;
@@ -445,28 +445,28 @@ static int adis16204_write_raw(struct iio_dev *indio_dev,
 
 static struct iio_chan_spec adis16204_channels[] = {
 	IIO_CHAN(IIO_VOLTAGE, 0, 0, 0, "supply", 0, 0,
-		 (1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+		 IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 		 in_supply, ADIS16204_SCAN_SUPPLY,
 		 IIO_ST('u', 12, 16, 0), 0),
 	IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 1, 0,
-		 (1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+		 IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 		 in_aux, ADIS16204_SCAN_AUX_ADC,
 		 IIO_ST('u', 12, 16, 0), 0),
 	IIO_CHAN(IIO_TEMP, 0, 1, 0, NULL, 0, 0,
-		 (1 << IIO_CHAN_INFO_SCALE_SEPARATE) |
-		 (1 << IIO_CHAN_INFO_OFFSET_SEPARATE),
+		 IIO_CHAN_INFO_SCALE_SEPARATE_BIT |
+		 IIO_CHAN_INFO_OFFSET_SEPARATE_BIT,
 		 temp, ADIS16204_SCAN_TEMP,
 		 IIO_ST('u', 12, 16, 0), 0),
 	IIO_CHAN(IIO_ACCEL, 1, 0, 0, NULL, 0, IIO_MOD_X,
-		 (1 << IIO_CHAN_INFO_SCALE_SEPARATE) |
-		 (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE) |
-		 (1 << IIO_CHAN_INFO_PEAK_SEPARATE),
+		 IIO_CHAN_INFO_SCALE_SEPARATE_BIT |
+		 IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT |
+		 IIO_CHAN_INFO_PEAK_SEPARATE_BIT,
 		 accel_x, ADIS16204_SCAN_ACC_X,
 		 IIO_ST('s', 14, 16, 0), 0),
 	IIO_CHAN(IIO_ACCEL, 1, 0, 0, NULL, 0, IIO_MOD_Y,
-		 (1 << IIO_CHAN_INFO_SCALE_SEPARATE) |
-		 (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE) |
-		 (1 << IIO_CHAN_INFO_PEAK_SEPARATE),
+		 IIO_CHAN_INFO_SCALE_SEPARATE_BIT |
+		 IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT |
+		 IIO_CHAN_INFO_PEAK_SEPARATE_BIT,
 		 accel_y, ADIS16204_SCAN_ACC_Y,
 		 IIO_ST('s', 14, 16, 0), 0),
 	IIO_CHAN_SOFT_TIMESTAMP(5),
@@ -582,3 +582,4 @@ module_spi_driver(adis16204_driver);
 MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
 MODULE_DESCRIPTION("ADIS16204 High-g Digital Impact Sensor and Recorder");
 MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("spi:adis16204");
diff --git a/drivers/staging/iio/accel/adis16204_ring.c b/drivers/staging/iio/accel/adis16204_ring.c
index 6fd3d8f51f2c..4081179dfa5c 100644
--- a/drivers/staging/iio/accel/adis16204_ring.c
+++ b/drivers/staging/iio/accel/adis16204_ring.c
@@ -71,11 +71,11 @@ static irqreturn_t adis16204_trigger_handler(int irq, void *p)
 		return -ENOMEM;
 	}
 
-	if (ring->scan_count)
-		if (adis16204_read_ring_data(&indio_dev->dev, st->rx) >= 0)
-			for (; i < ring->scan_count; i++)
-				data[i] = be16_to_cpup(
-					(__be16 *)&(st->rx[i*2]));
+	if (!bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength) &&
+	    adis16204_read_ring_data(&indio_dev->dev, st->rx) >= 0)
+		for (; i < bitmap_weight(indio_dev->active_scan_mask,
+					 indio_dev->masklength); i++)
+			data[i] = be16_to_cpup((__be16 *)&(st->rx[i*2]));
 
 	/* Guaranteed to be aligned with 8 byte boundary */
 	if (ring->scan_timestamp)
@@ -114,10 +114,8 @@ int adis16204_configure_ring(struct iio_dev *indio_dev)
 	indio_dev->buffer = ring;
 	/* Effectively select the ring buffer implementation */
 	ring->access = &ring_sw_access_funcs;
-	ring->bpe = 2;
 	ring->scan_timestamp = true;
-	ring->setup_ops = &adis16204_ring_setup_ops;
-	ring->owner = THIS_MODULE;
+	indio_dev->setup_ops = &adis16204_ring_setup_ops;
 
 	indio_dev->pollfunc = iio_alloc_pollfunc(&iio_pollfunc_store_time,
 						 &adis16204_trigger_handler,
diff --git a/drivers/staging/iio/accel/adis16209_core.c b/drivers/staging/iio/accel/adis16209_core.c
index c03afbf5bbdc..a98715f6bd6d 100644
--- a/drivers/staging/iio/accel/adis16209_core.c
+++ b/drivers/staging/iio/accel/adis16209_core.c
@@ -18,7 +18,7 @@
 
 #include "../iio.h"
 #include "../sysfs.h"
-#include "../buffer_generic.h"
+#include "../buffer.h"
 
 #include "adis16209.h"
 
@@ -304,7 +304,7 @@ static int adis16209_write_raw(struct iio_dev *indio_dev,
 	s16 val16;
 	u8 addr;
 	switch (mask) {
-	case (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE):
+	case IIO_CHAN_INFO_CALIBBIAS:
 		switch (chan->type) {
 		case IIO_ACCEL:
 		case IIO_INCLI:
@@ -355,8 +355,7 @@ static int adis16209_read_raw(struct iio_dev *indio_dev,
 		*val = val16;
 		mutex_unlock(&indio_dev->mlock);
 		return IIO_VAL_INT;
-	case (1 << IIO_CHAN_INFO_SCALE_SEPARATE):
-	case (1 << IIO_CHAN_INFO_SCALE_SHARED):
+	case IIO_CHAN_INFO_SCALE:
 		switch (chan->type) {
 		case IIO_VOLTAGE:
 			*val = 0;
@@ -381,10 +380,10 @@ static int adis16209_read_raw(struct iio_dev *indio_dev,
 			return -EINVAL;
 		}
 		break;
-	case (1 << IIO_CHAN_INFO_OFFSET_SEPARATE):
+	case IIO_CHAN_INFO_OFFSET:
 		*val = 25;
 		return IIO_VAL_INT;
-	case (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE):
+	case IIO_CHAN_INFO_CALIBBIAS:
 		switch (chan->type) {
 		case IIO_ACCEL:
 			bits = 14;
@@ -410,34 +409,34 @@ static int adis16209_read_raw(struct iio_dev *indio_dev,
 
 static struct iio_chan_spec adis16209_channels[] = {
 	IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 0, 0,
-		 (1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+		 IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 		 in_supply, ADIS16209_SCAN_SUPPLY,
 		 IIO_ST('u', 14, 16, 0), 0),
 	IIO_CHAN(IIO_TEMP, 0, 1, 0, NULL, 0, 0,
-		 (1 << IIO_CHAN_INFO_SCALE_SEPARATE) |
-		 (1 << IIO_CHAN_INFO_OFFSET_SEPARATE),
+		 IIO_CHAN_INFO_SCALE_SEPARATE_BIT |
+		 IIO_CHAN_INFO_OFFSET_SEPARATE_BIT,
 		 temp, ADIS16209_SCAN_TEMP,
 		 IIO_ST('u', 12, 16, 0), 0),
 	IIO_CHAN(IIO_ACCEL, 1, 0, 0, NULL, 0, IIO_MOD_X,
-		 (1 << IIO_CHAN_INFO_SCALE_SHARED) |
-		 (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE),
+		 IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		 IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT,
 		 accel_x, ADIS16209_SCAN_ACC_X,
 		 IIO_ST('s', 14, 16, 0), 0),
 	IIO_CHAN(IIO_ACCEL, 1, 0, 0, NULL, 0, IIO_MOD_Y,
-		 (1 << IIO_CHAN_INFO_SCALE_SHARED) |
-		 (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE),
+		 IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		 IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT,
 		 accel_y, ADIS16209_SCAN_ACC_Y,
 		 IIO_ST('s', 14, 16, 0), 0),
 	IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 1, 0,
-		 (1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+		 IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 		 in_aux, ADIS16209_SCAN_AUX_ADC,
 		 IIO_ST('u', 12, 16, 0), 0),
 	IIO_CHAN(IIO_INCLI, 1, 0, 0, NULL, 0, IIO_MOD_X,
-		 (1 << IIO_CHAN_INFO_SCALE_SHARED),
+		 IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		 incli_x, ADIS16209_SCAN_INCLI_X,
 		 IIO_ST('s', 14, 16, 0), 0),
 	IIO_CHAN(IIO_INCLI, 1, 0, 0, NULL, 0, IIO_MOD_Y,
-		 (1 << IIO_CHAN_INFO_SCALE_SHARED),
+		 IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		 incli_y, ADIS16209_SCAN_INCLI_Y,
 		 IIO_ST('s', 14, 16, 0), 0),
 	IIO_CHAN(IIO_ROT, 0, 1, 0, NULL, 0, IIO_MOD_X,
@@ -558,3 +557,4 @@ module_spi_driver(adis16209_driver);
 MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
 MODULE_DESCRIPTION("Analog Devices ADIS16209 Digital Vibration Sensor driver");
 MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("spi:adis16209");
diff --git a/drivers/staging/iio/accel/adis16209_ring.c b/drivers/staging/iio/accel/adis16209_ring.c
index d17e39d95459..2a6fd334f5f1 100644
--- a/drivers/staging/iio/accel/adis16209_ring.c
+++ b/drivers/staging/iio/accel/adis16209_ring.c
@@ -72,9 +72,10 @@ static irqreturn_t adis16209_trigger_handler(int irq, void *p)
 		return -ENOMEM;
 	}
 
-	if (ring->scan_count &&
+	if (!bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength) &&
 	    adis16209_read_ring_data(&indio_dev->dev, st->rx) >= 0)
-		for (; i < ring->scan_count; i++)
+		for (; i < bitmap_weight(indio_dev->active_scan_mask,
+					 indio_dev->masklength); i++)
 			data[i] = be16_to_cpup((__be16 *)&(st->rx[i*2]));
 
 	/* Guaranteed to be aligned with 8 byte boundary */
@@ -114,10 +115,8 @@ int adis16209_configure_ring(struct iio_dev *indio_dev)
 	indio_dev->buffer = ring;
 	/* Effectively select the ring buffer implementation */
 	ring->access = &ring_sw_access_funcs;
-	ring->bpe = 2;
 	ring->scan_timestamp = true;
-	ring->setup_ops = &adis16209_ring_setup_ops;
-	ring->owner = THIS_MODULE;
+	indio_dev->setup_ops = &adis16209_ring_setup_ops;
 
 	indio_dev->pollfunc = iio_alloc_pollfunc(&iio_pollfunc_store_time,
 						 &adis16209_trigger_handler,
diff --git a/drivers/staging/iio/accel/adis16220_core.c b/drivers/staging/iio/accel/adis16220_core.c
index 73298e7849e6..51a852d45482 100644
--- a/drivers/staging/iio/accel/adis16220_core.c
+++ b/drivers/staging/iio/accel/adis16220_core.c
@@ -167,9 +167,9 @@ static ssize_t adis16220_write_16bit(struct device *dev,
 	struct iio_dev *indio_dev = dev_get_drvdata(dev);
 	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
 	int ret;
-	long val;
+	u16 val;
 
-	ret = strict_strtol(buf, 10, &val);
+	ret = kstrtou16(buf, 10, &val);
 	if (ret)
 		goto error_ret;
 	ret = adis16220_spi_write_reg_16(indio_dev, this_attr->address, val);
@@ -510,17 +510,17 @@ static int adis16220_read_raw(struct iio_dev *indio_dev,
 	case 0:
 		addrind = 0;
 		break;
-	case (1 << IIO_CHAN_INFO_OFFSET_SEPARATE):
+	case IIO_CHAN_INFO_OFFSET:
 		if (chan->type == IIO_TEMP) {
 			*val = 25;
 			return IIO_VAL_INT;
 		}
 		addrind = 1;
 		break;
-	case (1 << IIO_CHAN_INFO_PEAK_SEPARATE):
+	case IIO_CHAN_INFO_PEAK:
 		addrind = 2;
 		break;
-	case (1 << IIO_CHAN_INFO_SCALE_SEPARATE):
+	case IIO_CHAN_INFO_SCALE:
 		*val = 0;
 		switch (chan->type) {
 		case IIO_TEMP:
@@ -575,27 +575,27 @@ static const struct iio_chan_spec adis16220_channels[] = {
 		.indexed = 1,
 		.channel = 0,
 		.extend_name = "supply",
-		.info_mask = (1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+		.info_mask = IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 		.address = in_supply,
 	}, {
 		.type = IIO_ACCEL,
-		.info_mask = (1 << IIO_CHAN_INFO_OFFSET_SEPARATE) |
-			     (1 << IIO_CHAN_INFO_SCALE_SEPARATE) |
-			     (1 << IIO_CHAN_INFO_PEAK_SEPARATE),
+		.info_mask = IIO_CHAN_INFO_OFFSET_SEPARATE_BIT |
+			     IIO_CHAN_INFO_SCALE_SEPARATE_BIT |
+			     IIO_CHAN_INFO_PEAK_SEPARATE_BIT,
 		.address = accel,
 	}, {
 		.type = IIO_TEMP,
 		.indexed = 1,
 		.channel = 0,
-		.info_mask = (1 << IIO_CHAN_INFO_OFFSET_SEPARATE) |
-			     (1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+		.info_mask = IIO_CHAN_INFO_OFFSET_SEPARATE_BIT |
+			     IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 		.address = temp,
 	}, {
 		.type = IIO_VOLTAGE,
 		.indexed = 1,
 		.channel = 1,
-		.info_mask = (1 << IIO_CHAN_INFO_OFFSET_SEPARATE) |
-			     (1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+		.info_mask = IIO_CHAN_INFO_OFFSET_SEPARATE_BIT |
+			     IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 		.address = in_1,
 	}, {
 		.type = IIO_VOLTAGE,
@@ -713,3 +713,4 @@ module_spi_driver(adis16220_driver);
 MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
 MODULE_DESCRIPTION("Analog Devices ADIS16220 Digital Vibration Sensor");
 MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("spi:adis16220");
diff --git a/drivers/staging/iio/accel/adis16240_core.c b/drivers/staging/iio/accel/adis16240_core.c
index 88881b9919ef..17f77fef7f2b 100644
--- a/drivers/staging/iio/accel/adis16240_core.c
+++ b/drivers/staging/iio/accel/adis16240_core.c
@@ -21,7 +21,7 @@
 
 #include "../iio.h"
 #include "../sysfs.h"
-#include "../buffer_generic.h"
+#include "../buffer.h"
 
 #include "adis16240.h"
 
@@ -389,8 +389,7 @@ static int adis16240_read_raw(struct iio_dev *indio_dev,
 		*val = val16;
 		mutex_unlock(&indio_dev->mlock);
 		return IIO_VAL_INT;
-	case (1 << IIO_CHAN_INFO_SCALE_SEPARATE):
-	case (1 << IIO_CHAN_INFO_SCALE_SHARED):
+	case IIO_CHAN_INFO_SCALE:
 		switch (chan->type) {
 		case IIO_VOLTAGE:
 			*val = 0;
@@ -411,14 +410,14 @@ static int adis16240_read_raw(struct iio_dev *indio_dev,
 			return -EINVAL;
 		}
 		break;
-	case (1 << IIO_CHAN_INFO_PEAK_SCALE_SHARED):
+	case IIO_CHAN_INFO_PEAK_SCALE:
 		*val = 6;
 		*val2 = 629295;
 		return IIO_VAL_INT_PLUS_MICRO;
-	case (1 << IIO_CHAN_INFO_OFFSET_SEPARATE):
+	case IIO_CHAN_INFO_OFFSET:
 		*val = 25;
 		return IIO_VAL_INT;
-	case (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE):
+	case IIO_CHAN_INFO_CALIBBIAS:
 		bits = 10;
 		mutex_lock(&indio_dev->mlock);
 		addr = adis16240_addresses[chan->address][1];
@@ -432,7 +431,7 @@ static int adis16240_read_raw(struct iio_dev *indio_dev,
 		*val = val16;
 		mutex_unlock(&indio_dev->mlock);
 		return IIO_VAL_INT;
-	case (1 << IIO_CHAN_INFO_PEAK_SEPARATE):
+	case IIO_CHAN_INFO_PEAK:
 		bits = 10;
 		mutex_lock(&indio_dev->mlock);
 		addr = adis16240_addresses[chan->address][2];
@@ -460,7 +459,7 @@ static int adis16240_write_raw(struct iio_dev *indio_dev,
 	s16 val16;
 	u8 addr;
 	switch (mask) {
-	case (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE):
+	case IIO_CHAN_INFO_CALIBBIAS:
 		val16 = val & ((1 << bits) - 1);
 		addr = adis16240_addresses[chan->address][1];
 		return adis16240_spi_write_reg_16(indio_dev, addr, val16);
@@ -470,7 +469,7 @@ static int adis16240_write_raw(struct iio_dev *indio_dev,
 
 static struct iio_chan_spec adis16240_channels[] = {
 	IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, "supply", 0, 0,
-		 (1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+		 IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 		 in_supply, ADIS16240_SCAN_SUPPLY,
 		 IIO_ST('u', 10, 16, 0), 0),
 	IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 1, 0,
@@ -478,22 +477,22 @@ static struct iio_chan_spec adis16240_channels[] = {
 		 in_aux, ADIS16240_SCAN_AUX_ADC,
 		 IIO_ST('u', 10, 16, 0), 0),
 	IIO_CHAN(IIO_ACCEL, 1, 0, 0, NULL, 0, IIO_MOD_X,
-		 (1 << IIO_CHAN_INFO_SCALE_SHARED) |
-		 (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE),
+		 IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		 IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT,
 		 accel_x, ADIS16240_SCAN_ACC_X,
 		 IIO_ST('s', 10, 16, 0), 0),
 	IIO_CHAN(IIO_ACCEL, 1, 0, 0, NULL, 0, IIO_MOD_Y,
-		 (1 << IIO_CHAN_INFO_SCALE_SHARED) |
-		 (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE),
+		 IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		 IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT,
 		 accel_y, ADIS16240_SCAN_ACC_Y,
 		 IIO_ST('s', 10, 16, 0), 0),
 	IIO_CHAN(IIO_ACCEL, 1, 0, 0, NULL, 0, IIO_MOD_Z,
-		 (1 << IIO_CHAN_INFO_SCALE_SHARED) |
-		 (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE),
+		 IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		 IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT,
 		 accel_z, ADIS16240_SCAN_ACC_Z,
 		 IIO_ST('s', 10, 16, 0), 0),
 	IIO_CHAN(IIO_TEMP, 0, 1, 0, NULL, 0, 0,
-		 (1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+		 IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 		 temp, ADIS16240_SCAN_TEMP,
 		 IIO_ST('u', 10, 16, 0), 0),
 	IIO_CHAN_SOFT_TIMESTAMP(6)
@@ -611,3 +610,4 @@ module_spi_driver(adis16240_driver);
 MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
 MODULE_DESCRIPTION("Analog Devices Programmable Impact Sensor and Recorder");
 MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("spi:adis16240");
diff --git a/drivers/staging/iio/accel/adis16240_ring.c b/drivers/staging/iio/accel/adis16240_ring.c
index b907ca3f4fdf..e23622d96f9f 100644
--- a/drivers/staging/iio/accel/adis16240_ring.c
+++ b/drivers/staging/iio/accel/adis16240_ring.c
@@ -69,9 +69,10 @@ static irqreturn_t adis16240_trigger_handler(int irq, void *p)
 		return -ENOMEM;
 	}
 
-	if (ring->scan_count &&
+	if (!bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength) &&
 	    adis16240_read_ring_data(&indio_dev->dev, st->rx) >= 0)
-		for (; i < ring->scan_count; i++)
+		for (; i < bitmap_weight(indio_dev->active_scan_mask,
+					 indio_dev->masklength); i++)
 			data[i] = be16_to_cpup((__be16 *)&(st->rx[i*2]));
 
 	/* Guaranteed to be aligned with 8 byte boundary */
@@ -111,10 +112,8 @@ int adis16240_configure_ring(struct iio_dev *indio_dev)
 	indio_dev->buffer = ring;
 	/* Effectively select the ring buffer implementation */
 	ring->access = &ring_sw_access_funcs;
-	ring->bpe = 2;
 	ring->scan_timestamp = true;
-	ring->setup_ops = &adis16240_ring_setup_ops;
-	ring->owner = THIS_MODULE;
+	indio_dev->setup_ops = &adis16240_ring_setup_ops;
 
 	indio_dev->pollfunc = iio_alloc_pollfunc(&iio_pollfunc_store_time,
 						 &adis16240_trigger_handler,
diff --git a/drivers/staging/iio/accel/kxsd9.c b/drivers/staging/iio/accel/kxsd9.c
index cfce21c2eddc..d13d7215ff6e 100644
--- a/drivers/staging/iio/accel/kxsd9.c
+++ b/drivers/staging/iio/accel/kxsd9.c
@@ -140,7 +140,7 @@ static int kxsd9_write_raw(struct iio_dev *indio_dev,
 {
 	int ret = -EINVAL;
 
-	if (mask == (1 << IIO_CHAN_INFO_SCALE_SHARED)) {
+	if (mask == IIO_CHAN_INFO_SCALE) {
 		/* Check no integer component */
 		if (val)
 			return -EINVAL;
@@ -164,7 +164,7 @@ static int kxsd9_read_raw(struct iio_dev *indio_dev,
 			goto error_ret;
 		*val = ret;
 		break;
-	case (1 << IIO_CHAN_INFO_SCALE_SHARED):
+	case IIO_CHAN_INFO_SCALE:
 		ret = spi_w8r8(st->us, KXSD9_READ(KXSD9_REG_CTRL_C));
 		if (ret)
 			goto error_ret;
@@ -181,7 +181,7 @@ error_ret:
 		.type = IIO_ACCEL,					\
 		.modified = 1,						\
 		.channel2 = IIO_MOD_##axis,				\
-		.info_mask = 1 << IIO_CHAN_INFO_SCALE_SHARED,		\
+		.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,		\
 		.address = KXSD9_REG_##axis,				\
 	}
 
@@ -268,8 +268,10 @@ static int __devexit kxsd9_remove(struct spi_device *spi)
 }
 
 static const struct spi_device_id kxsd9_id[] = {
-	{"kxsd9", 0}
+	{"kxsd9", 0},
+	{ },
 };
+MODULE_DEVICE_TABLE(spi, kxsd9_id);
 
 static struct spi_driver kxsd9_driver = {
 	.driver = {
diff --git a/drivers/staging/iio/accel/lis3l02dq.h b/drivers/staging/iio/accel/lis3l02dq.h
index 7237a9ab61a8..2db383fc2743 100644
--- a/drivers/staging/iio/accel/lis3l02dq.h
+++ b/drivers/staging/iio/accel/lis3l02dq.h
@@ -181,11 +181,6 @@ int lis3l02dq_disable_all_events(struct iio_dev *indio_dev);
 void lis3l02dq_remove_trigger(struct iio_dev *indio_dev);
 int lis3l02dq_probe_trigger(struct iio_dev *indio_dev);
 
-ssize_t lis3l02dq_read_accel_from_buffer(struct iio_buffer *buffer,
-				       int index,
-				       int *val);
-
-
 int lis3l02dq_configure_buffer(struct iio_dev *indio_dev);
 void lis3l02dq_unconfigure_buffer(struct iio_dev *indio_dev);
 
@@ -212,13 +207,6 @@ static inline int lis3l02dq_probe_trigger(struct iio_dev *indio_dev)
 {
 	return 0;
 }
-static inline ssize_t
-lis3l02dq_read_accel_from_buffer(struct iio_buffer *buffer,
-				 int index,
-				 int *val)
-{
-	return 0;
-}
 
 static int lis3l02dq_configure_buffer(struct iio_dev *indio_dev)
 {
diff --git a/drivers/staging/iio/accel/lis3l02dq_core.c b/drivers/staging/iio/accel/lis3l02dq_core.c
index 6877521ec173..376da5137967 100644
--- a/drivers/staging/iio/accel/lis3l02dq_core.c
+++ b/drivers/staging/iio/accel/lis3l02dq_core.c
@@ -25,7 +25,8 @@
 
 #include "../iio.h"
 #include "../sysfs.h"
-#include "../buffer_generic.h"
+#include "../events.h"
+#include "../buffer.h"
 
 #include "lis3l02dq.h"
 
@@ -226,14 +227,14 @@ static int lis3l02dq_write_raw(struct iio_dev *indio_dev,
 	u8 uval;
 	s8 sval;
 	switch (mask) {
-	case (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE):
+	case IIO_CHAN_INFO_CALIBBIAS:
 		if (val > 255 || val < -256)
 			return -EINVAL;
 		sval = val;
 		reg = lis3l02dq_axis_map[LIS3L02DQ_BIAS][chan->address];
 		ret = lis3l02dq_spi_write_reg_8(indio_dev, reg, sval);
 		break;
-	case (1 << IIO_CHAN_INFO_CALIBSCALE_SEPARATE):
+	case IIO_CHAN_INFO_CALIBSCALE:
 		if (val & ~0xFF)
 			return -EINVAL;
 		uval = val;
@@ -259,23 +260,20 @@ static int lis3l02dq_read_raw(struct iio_dev *indio_dev,
 	case 0:
 		/* Take the iio_dev status lock */
 		mutex_lock(&indio_dev->mlock);
-		if (indio_dev->currentmode == INDIO_BUFFER_TRIGGERED)
-			ret = lis3l02dq_read_accel_from_buffer(indio_dev->
-							       buffer,
-							       chan->scan_index,
-							       val);
-		else {
+		if (indio_dev->currentmode == INDIO_BUFFER_TRIGGERED) {
+			ret = -EBUSY;
+		} else {
 			reg = lis3l02dq_axis_map
 				[LIS3L02DQ_ACCEL][chan->address];
 			ret = lis3l02dq_read_reg_s16(indio_dev, reg, val);
 		}
 		mutex_unlock(&indio_dev->mlock);
 		return IIO_VAL_INT;
-	case (1 << IIO_CHAN_INFO_SCALE_SHARED):
+	case IIO_CHAN_INFO_SCALE:
 		*val = 0;
 		*val2 = 9580;
 		return IIO_VAL_INT_PLUS_MICRO;
-	case (1 << IIO_CHAN_INFO_CALIBSCALE_SEPARATE):
+	case IIO_CHAN_INFO_CALIBSCALE:
 		reg = lis3l02dq_axis_map[LIS3L02DQ_GAIN][chan->address];
 		ret = lis3l02dq_spi_read_reg_8(indio_dev, reg, &utemp);
 		if (ret)
@@ -284,7 +282,7 @@ static int lis3l02dq_read_raw(struct iio_dev *indio_dev,
 		*val = utemp;
 		return IIO_VAL_INT;
 
-	case (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE):
+	case IIO_CHAN_INFO_CALIBBIAS:
 		reg = lis3l02dq_axis_map[LIS3L02DQ_BIAS][chan->address];
 		ret = lis3l02dq_spi_read_reg_8(indio_dev, reg, (u8 *)&stemp);
 		/* to match with what previous code does */
@@ -331,11 +329,11 @@ static ssize_t lis3l02dq_write_frequency(struct device *dev,
 					 size_t len)
 {
 	struct iio_dev *indio_dev = dev_get_drvdata(dev);
-	long val;
+	unsigned long val;
 	int ret;
 	u8 t;
 
-	ret = strict_strtol(buf, 10, &val);
+	ret = kstrtoul(buf, 10, &val);
 	if (ret)
 		return ret;
 
@@ -515,9 +513,9 @@ static irqreturn_t lis3l02dq_event_handler(int irq, void *private)
 }
 
 #define LIS3L02DQ_INFO_MASK				\
-	((1 << IIO_CHAN_INFO_SCALE_SHARED) |		\
-	 (1 << IIO_CHAN_INFO_CALIBSCALE_SEPARATE) |	\
-	 (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE))
+	(IIO_CHAN_INFO_SCALE_SHARED_BIT |		\
+	 IIO_CHAN_INFO_CALIBSCALE_SEPARATE_BIT |	\
+	 IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT)
 
 #define LIS3L02DQ_EVENT_MASK					\
 	(IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING) |	\
@@ -534,7 +532,7 @@ static struct iio_chan_spec lis3l02dq_channels[] = {
 };
 
 
-static ssize_t lis3l02dq_read_event_config(struct iio_dev *indio_dev,
+static int lis3l02dq_read_event_config(struct iio_dev *indio_dev,
 					   u64 event_code)
 {
 
@@ -809,3 +807,4 @@ module_spi_driver(lis3l02dq_driver);
 MODULE_AUTHOR("Jonathan Cameron <jic23@cam.ac.uk>");
 MODULE_DESCRIPTION("ST LIS3L02DQ Accelerometer SPI driver");
 MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("spi:lis3l02dq");
diff --git a/drivers/staging/iio/accel/lis3l02dq_ring.c b/drivers/staging/iio/accel/lis3l02dq_ring.c
index 89527af8f4c5..98c5c92d3450 100644
--- a/drivers/staging/iio/accel/lis3l02dq_ring.c
+++ b/drivers/staging/iio/accel/lis3l02dq_ring.c
@@ -38,38 +38,6 @@ irqreturn_t lis3l02dq_data_rdy_trig_poll(int irq, void *private)
 		return IRQ_WAKE_THREAD;
 }
 
-/**
- * lis3l02dq_read_accel_from_buffer() individual acceleration read from buffer
- **/
-ssize_t lis3l02dq_read_accel_from_buffer(struct iio_buffer *buffer,
-					 int index,
-					 int *val)
-{
-	int ret;
-	s16 *data;
-
-	if (!iio_scan_mask_query(buffer, index))
-		return -EINVAL;
-
-	if (!buffer->access->read_last)
-		return -EBUSY;
-
-	data = kmalloc(buffer->access->get_bytes_per_datum(buffer),
-		       GFP_KERNEL);
-	if (data == NULL)
-		return -ENOMEM;
-
-	ret = buffer->access->read_last(buffer, (u8 *)data);
-	if (ret)
-		goto error_free_data;
-	*val = data[bitmap_weight(buffer->scan_mask, index)];
-error_free_data:
-
-	kfree(data);
-
-	return ret;
-}
-
 static const u8 read_all_tx_array[] = {
 	LIS3L02DQ_READ_REG(LIS3L02DQ_REG_OUT_X_L_ADDR), 0,
 	LIS3L02DQ_READ_REG(LIS3L02DQ_REG_OUT_X_H_ADDR), 0,
@@ -87,21 +55,21 @@ static const u8 read_all_tx_array[] = {
  **/
 static int lis3l02dq_read_all(struct iio_dev *indio_dev, u8 *rx_array)
 {
-	struct iio_buffer *buffer = indio_dev->buffer;
 	struct lis3l02dq_state *st = iio_priv(indio_dev);
 	struct spi_transfer *xfers;
 	struct spi_message msg;
 	int ret, i, j = 0;
 
-	xfers = kzalloc((buffer->scan_count) * 2
-			* sizeof(*xfers), GFP_KERNEL);
+	xfers = kcalloc(bitmap_weight(indio_dev->active_scan_mask,
+				      indio_dev->masklength) * 2,
+			sizeof(*xfers), GFP_KERNEL);
 	if (!xfers)
 		return -ENOMEM;
 
 	mutex_lock(&st->buf_lock);
 
 	for (i = 0; i < ARRAY_SIZE(read_all_tx_array)/4; i++)
-		if (test_bit(i, buffer->scan_mask)) {
+		if (test_bit(i, indio_dev->active_scan_mask)) {
 			/* lower byte */
 			xfers[j].tx_buf = st->tx + 2*j;
 			st->tx[2*j] = read_all_tx_array[i*4];
@@ -129,7 +97,8 @@ static int lis3l02dq_read_all(struct iio_dev *indio_dev, u8 *rx_array)
 	 * values in alternate bytes
 	 */
 	spi_message_init(&msg);
-	for (j = 0; j < buffer->scan_count * 2; j++)
+	for (j = 0; j < bitmap_weight(indio_dev->active_scan_mask,
+				      indio_dev->masklength) * 2; j++)
 		spi_message_add_tail(&xfers[j], &msg);
 
 	ret = spi_sync(st->us, &msg);
@@ -145,14 +114,16 @@ static int lis3l02dq_get_buffer_element(struct iio_dev *indio_dev,
 	int ret, i;
 	u8 *rx_array ;
 	s16 *data = (s16 *)buf;
+	int scan_count = bitmap_weight(indio_dev->active_scan_mask,
+				       indio_dev->masklength);
 
-	rx_array = kzalloc(4 * (indio_dev->buffer->scan_count), GFP_KERNEL);
+	rx_array = kzalloc(4 * scan_count, GFP_KERNEL);
 	if (rx_array == NULL)
 		return -ENOMEM;
 	ret = lis3l02dq_read_all(indio_dev, rx_array);
 	if (ret < 0)
 		return ret;
-	for (i = 0; i < indio_dev->buffer->scan_count; i++)
+	for (i = 0; i < scan_count; i++)
 		data[i] = combine_8_to_16(rx_array[i*4+1],
 					rx_array[i*4+3]);
 	kfree(rx_array);
@@ -175,7 +146,7 @@ static irqreturn_t lis3l02dq_trigger_handler(int irq, void *p)
 		return -ENOMEM;
 	}
 
-	if (buffer->scan_count)
+	if (!bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength))
 		len = lis3l02dq_get_buffer_element(indio_dev, data);
 
 	  /* Guaranteed to be aligned with 8 byte boundary */
@@ -363,17 +334,17 @@ static int lis3l02dq_buffer_postenable(struct iio_dev *indio_dev)
 	if (ret)
 		goto error_ret;
 
-	if (iio_scan_mask_query(indio_dev->buffer, 0)) {
+	if (test_bit(0, indio_dev->active_scan_mask)) {
 		t |= LIS3L02DQ_REG_CTRL_1_AXES_X_ENABLE;
 		oneenabled = true;
 	} else
 		t &= ~LIS3L02DQ_REG_CTRL_1_AXES_X_ENABLE;
-	if (iio_scan_mask_query(indio_dev->buffer, 1)) {
+	if (test_bit(1, indio_dev->active_scan_mask)) {
 		t |= LIS3L02DQ_REG_CTRL_1_AXES_Y_ENABLE;
 		oneenabled = true;
 	} else
 		t &= ~LIS3L02DQ_REG_CTRL_1_AXES_Y_ENABLE;
-	if (iio_scan_mask_query(indio_dev->buffer, 2)) {
+	if (test_bit(2, indio_dev->active_scan_mask)) {
 		t |= LIS3L02DQ_REG_CTRL_1_AXES_Z_ENABLE;
 		oneenabled = true;
 	} else
@@ -437,11 +408,9 @@ int lis3l02dq_configure_buffer(struct iio_dev *indio_dev)
 	indio_dev->buffer = buffer;
 	/* Effectively select the buffer implementation */
 	indio_dev->buffer->access = &lis3l02dq_access_funcs;
-	buffer->bpe = 2;
 
 	buffer->scan_timestamp = true;
-	buffer->setup_ops = &lis3l02dq_buffer_setup_ops;
-	buffer->owner = THIS_MODULE;
+	indio_dev->setup_ops = &lis3l02dq_buffer_setup_ops;
 
 	/* Functions are NULL as we set handler below */
 	indio_dev->pollfunc = iio_alloc_pollfunc(&iio_pollfunc_store_time,
diff --git a/drivers/staging/iio/accel/sca3000_core.c b/drivers/staging/iio/accel/sca3000_core.c
index 6c359074a06d..49764fb7181c 100644
--- a/drivers/staging/iio/accel/sca3000_core.c
+++ b/drivers/staging/iio/accel/sca3000_core.c
@@ -20,7 +20,8 @@
 #include <linux/module.h>
 #include "../iio.h"
 #include "../sysfs.h"
-#include "../buffer_generic.h"
+#include "../events.h"
+#include "../buffer.h"
 
 #include "sca3000.h"
 
@@ -381,13 +382,17 @@ sca3000_store_measurement_mode(struct device *dev,
 	struct iio_dev *indio_dev = dev_get_drvdata(dev);
 	struct sca3000_state *st = iio_priv(indio_dev);
 	int ret;
-	int mask = 0x03;
-	long val;
+	u8 mask = 0x03;
+	u8 val;
 
 	mutex_lock(&st->lock);
-	ret = strict_strtol(buf, 10, &val);
+	ret = kstrtou8(buf, 10, &val);
 	if (ret)
 		goto error_ret;
+	if (val > 3) {
+		ret = -EINVAL;
+		goto error_ret;
+	}
 	ret = sca3000_read_data_short(st, SCA3000_REG_ADDR_MODE, 1);
 	if (ret)
 		goto error_ret;
@@ -424,7 +429,7 @@ static IIO_DEVICE_ATTR(measurement_mode, S_IRUGO | S_IWUSR,
 static IIO_DEVICE_ATTR(revision, S_IRUGO, sca3000_show_rev, NULL, 0);
 
 #define SCA3000_INFO_MASK			\
-	(1 << IIO_CHAN_INFO_SCALE_SHARED)
+	IIO_CHAN_INFO_SCALE_SHARED_BIT
 #define SCA3000_EVENT_MASK					\
 	(IIO_EV_BIT(IIO_EV_TYPE_MAG, IIO_EV_DIR_RISING))
 
@@ -474,7 +479,7 @@ static int sca3000_read_raw(struct iio_dev *indio_dev,
 			(sizeof(*val)*8 - 13);
 		mutex_unlock(&st->lock);
 		return IIO_VAL_INT;
-	case (1 << IIO_CHAN_INFO_SCALE_SHARED):
+	case IIO_CHAN_INFO_SCALE:
 		*val = 0;
 		if (chan->type == IIO_ACCEL)
 			*val2 = st->info->scale;
@@ -1161,9 +1166,9 @@ static int __devinit sca3000_probe(struct spi_device *spi)
 	if (ret < 0)
 		goto error_unregister_dev;
 	if (indio_dev->buffer) {
-		iio_scan_mask_set(indio_dev->buffer, 0);
-		iio_scan_mask_set(indio_dev->buffer, 1);
-		iio_scan_mask_set(indio_dev->buffer, 2);
+		iio_scan_mask_set(indio_dev, indio_dev->buffer, 0);
+		iio_scan_mask_set(indio_dev, indio_dev->buffer, 1);
+		iio_scan_mask_set(indio_dev, indio_dev->buffer, 2);
 	}
 
 	if (spi->irq) {
@@ -1240,6 +1245,7 @@ static const struct spi_device_id sca3000_id[] = {
 	{"sca3000_e05", e05},
 	{}
 };
+MODULE_DEVICE_TABLE(spi, sca3000_id);
 
 static struct spi_driver sca3000_driver = {
 	.driver = {
diff --git a/drivers/staging/iio/accel/sca3000_ring.c b/drivers/staging/iio/accel/sca3000_ring.c
index 4a9a01dccd0c..6b824a11f7f4 100644
--- a/drivers/staging/iio/accel/sca3000_ring.c
+++ b/drivers/staging/iio/accel/sca3000_ring.c
@@ -20,7 +20,7 @@
 
 #include "../iio.h"
 #include "../sysfs.h"
-#include "../buffer_generic.h"
+#include "../buffer.h"
 #include "../ring_hw.h"
 #include "sca3000.h"
 
@@ -146,7 +146,6 @@ static int sca3000_ring_get_bytes_per_datum(struct iio_buffer *r)
 }
 
 static IIO_BUFFER_ENABLE_ATTR;
-static IIO_BUFFER_BYTES_PER_DATUM_ATTR;
 static IIO_BUFFER_LENGTH_ATTR;
 
 /**
@@ -158,8 +157,7 @@ static ssize_t sca3000_query_ring_int(struct device *dev,
 {
 	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
 	int ret, val;
-	struct iio_buffer *ring = dev_get_drvdata(dev);
-	struct iio_dev *indio_dev = ring->indio_dev;
+	struct iio_dev *indio_dev = dev_get_drvdata(dev);
 	struct sca3000_state *st = iio_priv(indio_dev);
 
 	mutex_lock(&st->lock);
@@ -180,8 +178,7 @@ static ssize_t sca3000_set_ring_int(struct device *dev,
 				      const char *buf,
 				      size_t len)
 {
-	struct iio_buffer *ring = dev_get_drvdata(dev);
-	struct iio_dev *indio_dev = ring->indio_dev;
+	struct iio_dev *indio_dev = dev_get_drvdata(dev);
 	struct sca3000_state *st = iio_priv(indio_dev);
 	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
 	long val;
@@ -222,8 +219,7 @@ static ssize_t sca3000_show_buffer_scale(struct device *dev,
 					 struct device_attribute *attr,
 					 char *buf)
 {
-	struct iio_buffer *ring = dev_get_drvdata(dev);
-	struct iio_dev *indio_dev = ring->indio_dev;
+	struct iio_dev *indio_dev = dev_get_drvdata(dev);
 	struct sca3000_state *st = iio_priv(indio_dev);
 
 	return sprintf(buf, "0.%06d\n", 4*st->info->scale);
@@ -243,7 +239,6 @@ static IIO_DEVICE_ATTR(in_accel_scale,
  */
 static struct attribute *sca3000_ring_attributes[] = {
 	&dev_attr_length.attr,
-	&dev_attr_bytes_per_datum.attr,
 	&dev_attr_enable.attr,
 	&iio_dev_attr_50_percent.dev_attr.attr,
 	&iio_dev_attr_75_percent.dev_attr.attr,
@@ -269,7 +264,7 @@ static struct iio_buffer *sca3000_rb_allocate(struct iio_dev *indio_dev)
 	buf = &ring->buf;
 	buf->stufftoread = 0;
 	buf->attrs = &sca3000_ring_attr;
-	iio_buffer_init(buf, indio_dev);
+	iio_buffer_init(buf);
 
 	return buf;
 }
@@ -350,7 +345,7 @@ static const struct iio_buffer_setup_ops sca3000_ring_setup_ops = {
 
 void sca3000_register_ring_funcs(struct iio_dev *indio_dev)
 {
-	indio_dev->buffer->setup_ops = &sca3000_ring_setup_ops;
+	indio_dev->setup_ops = &sca3000_ring_setup_ops;
 }
 
 /**
diff --git a/drivers/staging/iio/adc/ad7192.c b/drivers/staging/iio/adc/ad7192.c
index 797e65cd03e8..45f4504ed927 100644
--- a/drivers/staging/iio/adc/ad7192.c
+++ b/drivers/staging/iio/adc/ad7192.c
@@ -19,7 +19,7 @@
 
 #include "../iio.h"
 #include "../sysfs.h"
-#include "../buffer_generic.h"
+#include "../buffer.h"
 #include "../ring_sw.h"
 #include "../trigger.h"
 #include "../trigger_consumer.h"
@@ -453,25 +453,6 @@ out:
 	return ret;
 }
 
-static int ad7192_scan_from_ring(struct ad7192_state *st, unsigned ch, int *val)
-{
-	struct iio_buffer *ring = iio_priv_to_dev(st)->buffer;
-	int ret;
-	s64 dat64[2];
-	u32 *dat32 = (u32 *)dat64;
-
-	if (!(test_bit(ch, ring->scan_mask)))
-		return  -EBUSY;
-
-	ret = ring->access->read_last(ring, (u8 *) &dat64);
-	if (ret)
-		return ret;
-
-	*val = *dat32;
-
-	return 0;
-}
-
 static int ad7192_ring_preenable(struct iio_dev *indio_dev)
 {
 	struct ad7192_state *st = iio_priv(indio_dev);
@@ -479,12 +460,14 @@ static int ad7192_ring_preenable(struct iio_dev *indio_dev)
 	size_t d_size;
 	unsigned channel;
 
-	if (!ring->scan_count)
+	if (bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength))
 		return -EINVAL;
 
-	channel = find_first_bit(ring->scan_mask, indio_dev->masklength);
+	channel = find_first_bit(indio_dev->active_scan_mask,
+				 indio_dev->masklength);
 
-	d_size = ring->scan_count *
+	d_size = bitmap_weight(indio_dev->active_scan_mask,
+			       indio_dev->masklength) *
 		 indio_dev->channels[0].scan_type.storagebits / 8;
 
 	if (ring->scan_timestamp) {
@@ -544,7 +527,7 @@ static irqreturn_t ad7192_trigger_handler(int irq, void *p)
 	s64 dat64[2];
 	s32 *dat32 = (s32 *)dat64;
 
-	if (ring->scan_count)
+	if (!bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength))
 		__ad7192_read_reg(st, 1, 1, AD7192_REG_DATA,
 				  dat32,
 				  indio_dev->channels[0].scan_type.realbits/8);
@@ -592,7 +575,7 @@ static int ad7192_register_ring_funcs_and_init(struct iio_dev *indio_dev)
 	}
 
 	/* Ring buffer functions - here trigger setup related */
-	indio_dev->buffer->setup_ops = &ad7192_ring_setup_ops;
+	indio_dev->setup_ops = &ad7192_ring_setup_ops;
 
 	/* Flag that polled ring buffering is possible */
 	indio_dev->modes |= INDIO_BUFFER_TRIGGERED;
@@ -626,6 +609,10 @@ static irqreturn_t ad7192_data_rdy_trig_poll(int irq, void *private)
 	return IRQ_HANDLED;
 }
 
+static struct iio_trigger_ops ad7192_trigger_ops = {
+	.owner = THIS_MODULE,
+};
+
 static int ad7192_probe_trigger(struct iio_dev *indio_dev)
 {
 	struct ad7192_state *st = iio_priv(indio_dev);
@@ -638,7 +625,7 @@ static int ad7192_probe_trigger(struct iio_dev *indio_dev)
 		ret = -ENOMEM;
 		goto error_ret;
 	}
-
+	st->trig->ops = &ad7192_trigger_ops;
 	ret = request_irq(st->spi->irq,
 			  ad7192_data_rdy_trig_poll,
 			  IRQF_TRIGGER_LOW,
@@ -650,7 +637,6 @@ static int ad7192_probe_trigger(struct iio_dev *indio_dev)
 	disable_irq_nosync(st->spi->irq);
 	st->irq_dis = true;
 	st->trig->dev.parent = &st->spi->dev;
-	st->trig->owner = THIS_MODULE;
 	st->trig->private_data = indio_dev;
 
 	ret = iio_trigger_register(st->trig);
@@ -795,7 +781,7 @@ static ssize_t ad7192_set(struct device *dev,
 		return -EBUSY;
 	}
 
-	switch (this_attr->address) {
+	switch ((u32) this_attr->address) {
 	case AD7192_REG_GPOCON:
 		if (val)
 			st->gpocon |= AD7192_GPOCON_BPDSW;
@@ -873,8 +859,7 @@ static int ad7192_read_raw(struct iio_dev *indio_dev,
 	case 0:
 		mutex_lock(&indio_dev->mlock);
 		if (iio_buffer_enabled(indio_dev))
-			ret = ad7192_scan_from_ring(st,
-					chan->scan_index, &smpl);
+			ret = -EBUSY;
 		else
 			ret = ad7192_read(st, chan->address,
 					chan->scan_type.realbits / 8, &smpl);
@@ -901,18 +886,20 @@ static int ad7192_read_raw(struct iio_dev *indio_dev,
 		}
 		return IIO_VAL_INT;
 
-	case (1 << IIO_CHAN_INFO_SCALE_SHARED):
-		mutex_lock(&indio_dev->mlock);
-		*val = st->scale_avail[AD7192_CONF_GAIN(st->conf)][0];
-		*val2 = st->scale_avail[AD7192_CONF_GAIN(st->conf)][1];
-		mutex_unlock(&indio_dev->mlock);
-
-		return IIO_VAL_INT_PLUS_NANO;
-
-	case (1 << IIO_CHAN_INFO_SCALE_SEPARATE):
-		*val =  1000;
-
-		return IIO_VAL_INT;
+	case IIO_CHAN_INFO_SCALE:
+		switch (chan->type) {
+		case IIO_VOLTAGE:
+			mutex_lock(&indio_dev->mlock);
+			*val = st->scale_avail[AD7192_CONF_GAIN(st->conf)][0];
+			*val2 = st->scale_avail[AD7192_CONF_GAIN(st->conf)][1];
+			mutex_unlock(&indio_dev->mlock);
+			return IIO_VAL_INT_PLUS_NANO;
+		case IIO_TEMP:
+			*val =  1000;
+			return IIO_VAL_INT;
+		default:
+			return -EINVAL;
+		}
 	}
 
 	return -EINVAL;
@@ -935,7 +922,7 @@ static int ad7192_write_raw(struct iio_dev *indio_dev,
 	}
 
 	switch (mask) {
-	case (1 << IIO_CHAN_INFO_SCALE_SHARED):
+	case IIO_CHAN_INFO_SCALE:
 		ret = -EINVAL;
 		for (i = 0; i < ARRAY_SIZE(st->scale_avail); i++)
 			if (val2 == st->scale_avail[i][1]) {
@@ -992,7 +979,7 @@ static const struct iio_info ad7192_info = {
 	  .extend_name = _name,						\
 	  .channel = _chan,						\
 	  .channel2 = _chan2,						\
-	  .info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),		\
+	  .info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,		\
 	  .address = _address,						\
 	  .scan_index = _si,						\
 	  .scan_type =  IIO_ST('s', 24, 32, 0)}
@@ -1001,7 +988,7 @@ static const struct iio_info ad7192_info = {
 	{ .type = IIO_VOLTAGE,						\
 	  .indexed = 1,							\
 	  .channel = _chan,						\
-	  .info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),		\
+	  .info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,		\
 	  .address = _address,						\
 	  .scan_index = _si,						\
 	  .scan_type =  IIO_ST('s', 24, 32, 0)}
@@ -1010,7 +997,7 @@ static const struct iio_info ad7192_info = {
 	{ .type = IIO_TEMP,						\
 	  .indexed = 1,							\
 	  .channel = _chan,						\
-	  .info_mask = (1 << IIO_CHAN_INFO_SCALE_SEPARATE),		\
+	  .info_mask = IIO_CHAN_INFO_SCALE_SEPARATE_BIT,		\
 	  .address = _address,						\
 	  .scan_index = _si,						\
 	  .scan_type =  IIO_ST('s', 24, 32, 0)}
@@ -1151,6 +1138,7 @@ static const struct spi_device_id ad7192_id[] = {
 	{"ad7195", ID_AD7195},
 	{}
 };
+MODULE_DEVICE_TABLE(spi, ad7192_id);
 
 static struct spi_driver ad7192_driver = {
 	.driver = {
diff --git a/drivers/staging/iio/adc/ad7280a.c b/drivers/staging/iio/adc/ad7280a.c
index dbaeae81e873..7dbd6812c240 100644
--- a/drivers/staging/iio/adc/ad7280a.c
+++ b/drivers/staging/iio/adc/ad7280a.c
@@ -18,6 +18,7 @@
 
 #include "../iio.h"
 #include "../sysfs.h"
+#include "../events.h"
 
 #include "ad7280a.h"
 
@@ -455,10 +456,10 @@ static ssize_t ad7280_store_balance_timer(struct device *dev,
 	struct iio_dev *indio_dev = dev_get_drvdata(dev);
 	struct ad7280_state *st = iio_priv(indio_dev);
 	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	long val;
+	unsigned long val;
 	int ret;
 
-	ret = strict_strtoul(buf, 10, &val);
+	ret = kstrtoul(buf, 10, &val);
 	if (ret)
 		return ret;
 
@@ -487,8 +488,8 @@ static int ad7280_channel_init(struct ad7280_state *st)
 {
 	int dev, ch, cnt;
 
-	st->channels = kzalloc(sizeof(*st->channels) *
-				((st->slave_num + 1) * 12 + 2), GFP_KERNEL);
+	st->channels = kcalloc((st->slave_num + 1) * 12 + 2,
+			       sizeof(*st->channels), GFP_KERNEL);
 	if (st->channels == NULL)
 		return -ENOMEM;
 
@@ -507,7 +508,7 @@ static int ad7280_channel_init(struct ad7280_state *st)
 			}
 			st->channels[cnt].indexed = 1;
 			st->channels[cnt].info_mask =
-				(1 << IIO_CHAN_INFO_SCALE_SHARED);
+				IIO_CHAN_INFO_SCALE_SHARED_BIT;
 			st->channels[cnt].address =
 				AD7280A_DEVADDR(dev) << 8 | ch;
 			st->channels[cnt].scan_index = cnt;
@@ -523,7 +524,7 @@ static int ad7280_channel_init(struct ad7280_state *st)
 	st->channels[cnt].channel2 = dev * 6;
 	st->channels[cnt].address = AD7280A_ALL_CELLS;
 	st->channels[cnt].indexed = 1;
-	st->channels[cnt].info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED);
+	st->channels[cnt].info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT;
 	st->channels[cnt].scan_index = cnt;
 	st->channels[cnt].scan_type.sign = 'u';
 	st->channels[cnt].scan_type.realbits = 32;
@@ -600,7 +601,7 @@ static ssize_t ad7280_read_channel_config(struct device *dev,
 	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
 	unsigned val;
 
-	switch (this_attr->address) {
+	switch ((u32) this_attr->address) {
 	case AD7280A_CELL_OVERVOLTAGE:
 		val = 1000 + (st->cell_threshhigh * 1568) / 100;
 		break;
@@ -636,7 +637,7 @@ static ssize_t ad7280_write_channel_config(struct device *dev,
 	if (ret)
 		return ret;
 
-	switch (this_attr->address) {
+	switch ((u32) this_attr->address) {
 	case AD7280A_CELL_OVERVOLTAGE:
 	case AD7280A_CELL_UNDERVOLTAGE:
 		val = ((val - 1000) * 100) / 1568; /* LSB 15.68mV */
@@ -652,7 +653,7 @@ static ssize_t ad7280_write_channel_config(struct device *dev,
 	val = clamp(val, 0L, 0xFFL);
 
 	mutex_lock(&indio_dev->mlock);
-	switch (this_attr->address) {
+	switch ((u32) this_attr->address) {
 	case AD7280A_CELL_OVERVOLTAGE:
 		st->cell_threshhigh = val;
 		break;
@@ -682,13 +683,13 @@ static irqreturn_t ad7280_event_handler(int irq, void *private)
 	unsigned *channels;
 	int i, ret;
 
-	channels = kzalloc(sizeof(*channels) * st->scan_cnt, GFP_KERNEL);
+	channels = kcalloc(st->scan_cnt, sizeof(*channels), GFP_KERNEL);
 	if (channels == NULL)
 		return IRQ_HANDLED;
 
 	ret = ad7280_read_all_channels(st, st->scan_cnt, channels);
 	if (ret < 0)
-		return IRQ_HANDLED;
+		goto out;
 
 	for (i = 0; i < st->scan_cnt; i++) {
 		if (((channels[i] >> 23) & 0xF) <= AD7280A_CELL_VOLTAGE_6) {
@@ -731,6 +732,7 @@ static irqreturn_t ad7280_event_handler(int irq, void *private)
 		}
 	}
 
+out:
 	kfree(channels);
 
 	return IRQ_HANDLED;
@@ -801,7 +803,7 @@ static int ad7280_read_raw(struct iio_dev *indio_dev,
 		*val = ret;
 
 		return IIO_VAL_INT;
-	case (1 << IIO_CHAN_INFO_SCALE_SHARED):
+	case IIO_CHAN_INFO_SCALE:
 		if ((chan->address & 0xFF) <= AD7280A_CELL_VOLTAGE_6)
 			scale_uv = (4000 * 1000) >> AD7280A_BITS;
 		else
@@ -968,11 +970,11 @@ static const struct spi_device_id ad7280_id[] = {
 	{"ad7280a", 0},
 	{}
 };
+MODULE_DEVICE_TABLE(spi, ad7280_id);
 
 static struct spi_driver ad7280_driver = {
 	.driver = {
 		.name	= "ad7280",
-		.bus	= &spi_bus_type,
 		.owner	= THIS_MODULE,
 	},
 	.probe		= ad7280_probe,
diff --git a/drivers/staging/iio/adc/ad7291.c b/drivers/staging/iio/adc/ad7291.c
index aa44a52a7adb..0a13616e3db9 100644
--- a/drivers/staging/iio/adc/ad7291.c
+++ b/drivers/staging/iio/adc/ad7291.c
@@ -19,6 +19,7 @@
 
 #include "../iio.h"
 #include "../sysfs.h"
+#include "../events.h"
 
 /*
  * Simplified handling
@@ -500,7 +501,7 @@ static int ad7291_read_raw(struct iio_dev *indio_dev,
 		default:
 			return -EINVAL;
 		}
-	case (1 << IIO_CHAN_INFO_AVERAGE_RAW_SEPARATE):
+	case IIO_CHAN_INFO_AVERAGE_RAW:
 		ret = i2c_smbus_read_word_data(chip->client,
 					       AD7291_T_AVERAGE);
 			if (ret < 0)
@@ -509,18 +510,24 @@ static int ad7291_read_raw(struct iio_dev *indio_dev,
 				AD7291_VALUE_MASK) << 4) >> 4;
 			*val = signval;
 			return IIO_VAL_INT;
-	case (1 << IIO_CHAN_INFO_SCALE_SHARED):
-		scale_uv = (chip->int_vref_mv * 1000) >> AD7291_BITS;
-		*val =  scale_uv / 1000;
-		*val2 = (scale_uv % 1000) * 1000;
-		return IIO_VAL_INT_PLUS_MICRO;
-	case (1 << IIO_CHAN_INFO_SCALE_SEPARATE):
-		/*
-		* One LSB of the ADC corresponds to 0.25 deg C.
-		* The temperature reading is in 12-bit twos complement format
-		*/
-		*val = 250;
-		return IIO_VAL_INT;
+	case IIO_CHAN_INFO_SCALE:
+		switch (chan->type) {
+		case IIO_VOLTAGE:
+			scale_uv = (chip->int_vref_mv * 1000) >> AD7291_BITS;
+			*val =  scale_uv / 1000;
+			*val2 = (scale_uv % 1000) * 1000;
+			return IIO_VAL_INT_PLUS_MICRO;
+		case IIO_TEMP:
+			/*
+			 * One LSB of the ADC corresponds to 0.25 deg C.
+			 * The temperature reading is in 12-bit twos
+			 * complement format
+			 */
+			*val = 250;
+			return IIO_VAL_INT;
+		default:
+			return -EINVAL;
+		}
 	default:
 		return -EINVAL;
 	}
@@ -529,7 +536,7 @@ static int ad7291_read_raw(struct iio_dev *indio_dev,
 #define AD7291_VOLTAGE_CHAN(_chan)					\
 {									\
 	.type = IIO_VOLTAGE,						\
-	.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),			\
+	.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,			\
 	.indexed = 1,							\
 	.channel = _chan,						\
 	.event_mask = IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING)|\
@@ -547,8 +554,8 @@ static const struct iio_chan_spec ad7291_channels[] = {
 	AD7291_VOLTAGE_CHAN(7),
 	{
 		.type = IIO_TEMP,
-		.info_mask = (1 << IIO_CHAN_INFO_AVERAGE_RAW_SEPARATE) |
-				(1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+		.info_mask = IIO_CHAN_INFO_AVERAGE_RAW_SEPARATE_BIT |
+				IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 		.indexed = 1,
 		.channel = 0,
 		.event_mask =
diff --git a/drivers/staging/iio/adc/ad7298.h b/drivers/staging/iio/adc/ad7298.h
index 9ddf5cf0e519..a0e5dea415ef 100644
--- a/drivers/staging/iio/adc/ad7298.h
+++ b/drivers/staging/iio/adc/ad7298.h
@@ -54,14 +54,9 @@ struct ad7298_state {
 };
 
 #ifdef CONFIG_IIO_BUFFER
-int ad7298_scan_from_ring(struct iio_dev *indio_dev, long ch);
 int ad7298_register_ring_funcs_and_init(struct iio_dev *indio_dev);
 void ad7298_ring_cleanup(struct iio_dev *indio_dev);
 #else /* CONFIG_IIO_BUFFER */
-static inline int ad7298_scan_from_ring(struct iio_dev *indio_dev, long ch)
-{
-	return 0;
-}
 
 static inline int
 ad7298_register_ring_funcs_and_init(struct iio_dev *indio_dev)
diff --git a/drivers/staging/iio/adc/ad7298_core.c b/drivers/staging/iio/adc/ad7298_core.c
index a799bd1922dc..8dd6aa9cf928 100644
--- a/drivers/staging/iio/adc/ad7298_core.c
+++ b/drivers/staging/iio/adc/ad7298_core.c
@@ -18,37 +18,37 @@
 
 #include "../iio.h"
 #include "../sysfs.h"
-#include "../buffer_generic.h"
+#include "../buffer.h"
 
 #include "ad7298.h"
 
 static struct iio_chan_spec ad7298_channels[] = {
 	IIO_CHAN(IIO_TEMP, 0, 1, 0, NULL, 0, 0,
-		 (1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+		 IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 		 9, AD7298_CH_TEMP, IIO_ST('s', 32, 32, 0), 0),
 	IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 0, 0,
-		 (1 << IIO_CHAN_INFO_SCALE_SHARED),
+		 IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		 0, 0, IIO_ST('u', 12, 16, 0), 0),
 	IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 1, 0,
-		 (1 << IIO_CHAN_INFO_SCALE_SHARED),
+		 IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		 1, 1, IIO_ST('u', 12, 16, 0), 0),
 	IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 2, 0,
-		 (1 << IIO_CHAN_INFO_SCALE_SHARED),
+		 IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		 2, 2, IIO_ST('u', 12, 16, 0), 0),
 	IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 3, 0,
-		 (1 << IIO_CHAN_INFO_SCALE_SHARED),
+		 IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		 3, 3, IIO_ST('u', 12, 16, 0), 0),
 	IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 4, 0,
-		 (1 << IIO_CHAN_INFO_SCALE_SHARED),
+		 IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		 4, 4, IIO_ST('u', 12, 16, 0), 0),
 	IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 5, 0,
-		 (1 << IIO_CHAN_INFO_SCALE_SHARED),
+		 IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		 5, 5, IIO_ST('u', 12, 16, 0), 0),
 	IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 6, 0,
-		 (1 << IIO_CHAN_INFO_SCALE_SHARED),
+		 IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		 6, 6, IIO_ST('u', 12, 16, 0), 0),
 	IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 7, 0,
-		 (1 << IIO_CHAN_INFO_SCALE_SHARED),
+		 IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		 7, 7, IIO_ST('u', 12, 16, 0), 0),
 	IIO_CHAN_SOFT_TIMESTAMP(8),
 };
@@ -69,27 +69,28 @@ static int ad7298_scan_direct(struct ad7298_state *st, unsigned ch)
 static int ad7298_scan_temp(struct ad7298_state *st, int *val)
 {
 	int tmp, ret;
+	__be16 buf;
 
-	tmp = cpu_to_be16(AD7298_WRITE | AD7298_TSENSE |
+	buf = cpu_to_be16(AD7298_WRITE | AD7298_TSENSE |
 			  AD7298_TAVG | st->ext_ref);
 
-	ret = spi_write(st->spi, (u8 *)&tmp, 2);
+	ret = spi_write(st->spi, (u8 *)&buf, 2);
 	if (ret)
 		return ret;
 
-	tmp = 0;
+	buf = cpu_to_be16(0);
 
-	ret = spi_write(st->spi, (u8 *)&tmp, 2);
+	ret = spi_write(st->spi, (u8 *)&buf, 2);
 	if (ret)
 		return ret;
 
 	usleep_range(101, 1000); /* sleep > 100us */
 
-	ret = spi_read(st->spi, (u8 *)&tmp, 2);
+	ret = spi_read(st->spi, (u8 *)&buf, 2);
 	if (ret)
 		return ret;
 
-	tmp = be16_to_cpu(tmp) & RES_MASK(AD7298_BITS);
+	tmp = be16_to_cpu(buf) & RES_MASK(AD7298_BITS);
 
 	/*
 	 * One LSB of the ADC corresponds to 0.25 deg C.
@@ -122,12 +123,8 @@ static int ad7298_read_raw(struct iio_dev *indio_dev,
 	switch (m) {
 	case 0:
 		mutex_lock(&indio_dev->mlock);
-		if (iio_buffer_enabled(indio_dev)) {
-			if (chan->address == AD7298_CH_TEMP)
-				ret = -ENODEV;
-			else
-				ret = ad7298_scan_from_ring(indio_dev,
-							    chan->address);
+		if (indio_dev->currentmode == INDIO_BUFFER_TRIGGERED) {
+			ret = -EBUSY;
 		} else {
 			if (chan->address == AD7298_CH_TEMP)
 				ret = ad7298_scan_temp(st, val);
@@ -143,15 +140,20 @@ static int ad7298_read_raw(struct iio_dev *indio_dev,
 			*val = ret & RES_MASK(AD7298_BITS);
 
 		return IIO_VAL_INT;
-	case (1 << IIO_CHAN_INFO_SCALE_SHARED):
-		scale_uv = (st->int_vref_mv * 1000) >> AD7298_BITS;
-		*val =  scale_uv / 1000;
-		*val2 = (scale_uv % 1000) * 1000;
-		return IIO_VAL_INT_PLUS_MICRO;
-	case (1 << IIO_CHAN_INFO_SCALE_SEPARATE):
-		*val =  1;
-		*val2 = 0;
-		return IIO_VAL_INT_PLUS_MICRO;
+	case IIO_CHAN_INFO_SCALE:
+		switch (chan->type) {
+		case IIO_VOLTAGE:
+			scale_uv = (st->int_vref_mv * 1000) >> AD7298_BITS;
+			*val =  scale_uv / 1000;
+			*val2 = (scale_uv % 1000) * 1000;
+			return IIO_VAL_INT_PLUS_MICRO;
+		case IIO_TEMP:
+			*val =  1;
+			*val2 = 0;
+			return IIO_VAL_INT_PLUS_MICRO;
+		default:
+			return -EINVAL;
+		}
 	}
 	return -EINVAL;
 }
@@ -265,11 +267,11 @@ static const struct spi_device_id ad7298_id[] = {
 	{"ad7298", 0},
 	{}
 };
+MODULE_DEVICE_TABLE(spi, ad7298_id);
 
 static struct spi_driver ad7298_driver = {
 	.driver = {
 		.name	= "ad7298",
-		.bus	= &spi_bus_type,
 		.owner	= THIS_MODULE,
 	},
 	.probe		= ad7298_probe,
@@ -281,4 +283,3 @@ module_spi_driver(ad7298_driver);
 MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
 MODULE_DESCRIPTION("Analog Devices AD7298 ADC");
 MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("spi:ad7298");
diff --git a/drivers/staging/iio/adc/ad7298_ring.c b/drivers/staging/iio/adc/ad7298_ring.c
index 47630d506a63..d1a12dd015e2 100644
--- a/drivers/staging/iio/adc/ad7298_ring.c
+++ b/drivers/staging/iio/adc/ad7298_ring.c
@@ -12,41 +12,12 @@
 #include <linux/spi/spi.h>
 
 #include "../iio.h"
-#include "../buffer_generic.h"
+#include "../buffer.h"
 #include "../ring_sw.h"
 #include "../trigger_consumer.h"
 
 #include "ad7298.h"
 
-int ad7298_scan_from_ring(struct iio_dev *indio_dev, long ch)
-{
-	struct iio_buffer *ring = indio_dev->buffer;
-	int ret;
-	u16 *ring_data;
-
-	if (!(test_bit(ch, ring->scan_mask))) {
-		ret = -EBUSY;
-		goto error_ret;
-	}
-
-	ring_data = kmalloc(ring->access->get_bytes_per_datum(ring),
-			    GFP_KERNEL);
-	if (ring_data == NULL) {
-		ret = -ENOMEM;
-		goto error_ret;
-	}
-	ret = ring->access->read_last(ring, (u8 *) ring_data);
-	if (ret)
-		goto error_free_ring_data;
-
-	ret = be16_to_cpu(ring_data[ch]);
-
-error_free_ring_data:
-	kfree(ring_data);
-error_ret:
-	return ret;
-}
-
 /**
  * ad7298_ring_preenable() setup the parameters of the ring before enabling
  *
@@ -61,8 +32,9 @@ static int ad7298_ring_preenable(struct iio_dev *indio_dev)
 	size_t d_size;
 	int i, m;
 	unsigned short command;
-
-	d_size = ring->scan_count * (AD7298_STORAGE_BITS / 8);
+	int scan_count = bitmap_weight(indio_dev->active_scan_mask,
+				       indio_dev->masklength);
+	d_size = scan_count * (AD7298_STORAGE_BITS / 8);
 
 	if (ring->scan_timestamp) {
 		d_size += sizeof(s64);
@@ -79,7 +51,7 @@ static int ad7298_ring_preenable(struct iio_dev *indio_dev)
 	command = AD7298_WRITE | st->ext_ref;
 
 	for (i = 0, m = AD7298_CH(0); i < AD7298_MAX_CHAN; i++, m >>= 1)
-		if (test_bit(i, ring->scan_mask))
+		if (test_bit(i, indio_dev->active_scan_mask))
 			command |= m;
 
 	st->tx_buf[0] = cpu_to_be16(command);
@@ -96,7 +68,7 @@ static int ad7298_ring_preenable(struct iio_dev *indio_dev)
 	spi_message_add_tail(&st->ring_xfer[0], &st->ring_msg);
 	spi_message_add_tail(&st->ring_xfer[1], &st->ring_msg);
 
-	for (i = 0; i < ring->scan_count; i++) {
+	for (i = 0; i < scan_count; i++) {
 		st->ring_xfer[i + 2].rx_buf = &st->rx_buf[i];
 		st->ring_xfer[i + 2].len = 2;
 		st->ring_xfer[i + 2].cs_change = 1;
@@ -134,7 +106,8 @@ static irqreturn_t ad7298_trigger_handler(int irq, void *p)
 			&time_ns, sizeof(time_ns));
 	}
 
-	for (i = 0; i < ring->scan_count; i++)
+	for (i = 0; i < bitmap_weight(indio_dev->active_scan_mask,
+						 indio_dev->masklength); i++)
 		buf[i] = be16_to_cpu(st->rx_buf[i]);
 
 	indio_dev->buffer->access->store_to(ring, (u8 *)buf, time_ns);
@@ -174,7 +147,7 @@ int ad7298_register_ring_funcs_and_init(struct iio_dev *indio_dev)
 	}
 
 	/* Ring buffer functions - here trigger setup related */
-	indio_dev->buffer->setup_ops = &ad7298_ring_setup_ops;
+	indio_dev->setup_ops = &ad7298_ring_setup_ops;
 	indio_dev->buffer->scan_timestamp = true;
 
 	/* Flag that polled ring buffering is possible */
diff --git a/drivers/staging/iio/adc/ad7476.h b/drivers/staging/iio/adc/ad7476.h
index 60142926565f..27f696c75cc4 100644
--- a/drivers/staging/iio/adc/ad7476.h
+++ b/drivers/staging/iio/adc/ad7476.h
@@ -50,14 +50,9 @@ enum ad7476_supported_device_ids {
 };
 
 #ifdef CONFIG_IIO_BUFFER
-int ad7476_scan_from_ring(struct iio_dev *indio_dev);
 int ad7476_register_ring_funcs_and_init(struct iio_dev *indio_dev);
 void ad7476_ring_cleanup(struct iio_dev *indio_dev);
 #else /* CONFIG_IIO_BUFFER */
-static inline int ad7476_scan_from_ring(struct iio_dev *indio_dev)
-{
-	return 0;
-}
 
 static inline int
 ad7476_register_ring_funcs_and_init(struct iio_dev *indio_dev)
diff --git a/drivers/staging/iio/adc/ad7476_core.c b/drivers/staging/iio/adc/ad7476_core.c
index 0b5852030ab6..0c064d1c3927 100644
--- a/drivers/staging/iio/adc/ad7476_core.c
+++ b/drivers/staging/iio/adc/ad7476_core.c
@@ -17,7 +17,7 @@
 
 #include "../iio.h"
 #include "../sysfs.h"
-#include "../buffer_generic.h"
+#include "../buffer.h"
 
 #include "ad7476.h"
 
@@ -46,7 +46,7 @@ static int ad7476_read_raw(struct iio_dev *indio_dev,
 	case 0:
 		mutex_lock(&indio_dev->mlock);
 		if (iio_buffer_enabled(indio_dev))
-			ret = ad7476_scan_from_ring(indio_dev);
+			ret = -EBUSY;
 		else
 			ret = ad7476_scan_direct(st);
 		mutex_unlock(&indio_dev->mlock);
@@ -56,7 +56,7 @@ static int ad7476_read_raw(struct iio_dev *indio_dev,
 		*val = (ret >> st->chip_info->channel[0].scan_type.shift) &
 			RES_MASK(st->chip_info->channel[0].scan_type.realbits);
 		return IIO_VAL_INT;
-	case (1 << IIO_CHAN_INFO_SCALE_SHARED):
+	case IIO_CHAN_INFO_SCALE:
 		scale_uv = (st->int_vref_mv * 1000)
 			>> st->chip_info->channel[0].scan_type.realbits;
 		*val =  scale_uv/1000;
@@ -69,49 +69,49 @@ static int ad7476_read_raw(struct iio_dev *indio_dev,
 static const struct ad7476_chip_info ad7476_chip_info_tbl[] = {
 	[ID_AD7466] = {
 		.channel[0] = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 0, 0,
-				       (1 << IIO_CHAN_INFO_SCALE_SHARED),
+				       IIO_CHAN_INFO_SCALE_SHARED_BIT,
 				       0, 0, IIO_ST('u', 12, 16, 0), 0),
 		.channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
 	},
 	[ID_AD7467] = {
 		.channel[0] = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 0, 0,
-				       (1 << IIO_CHAN_INFO_SCALE_SHARED),
+				       IIO_CHAN_INFO_SCALE_SHARED_BIT,
 				       0, 0, IIO_ST('u', 10, 16, 2), 0),
 		.channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
 	},
 	[ID_AD7468] = {
 		.channel[0] = IIO_CHAN(IIO_VOLTAGE, 0, 1 , 0, NULL, 0, 0,
-				       (1 << IIO_CHAN_INFO_SCALE_SHARED),
+				       IIO_CHAN_INFO_SCALE_SHARED_BIT,
 				       0, 0, IIO_ST('u', 8, 16, 4), 0),
 		.channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
 	},
 	[ID_AD7475] = {
 		.channel[0] = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 0, 0,
-				       (1 << IIO_CHAN_INFO_SCALE_SHARED),
+				       IIO_CHAN_INFO_SCALE_SHARED_BIT,
 				       0, 0, IIO_ST('u', 12, 16, 0), 0),
 		.channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
 	},
 	[ID_AD7476] = {
 		.channel[0] = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 0, 0,
-				       (1 << IIO_CHAN_INFO_SCALE_SHARED),
+				       IIO_CHAN_INFO_SCALE_SHARED_BIT,
 				       0, 0, IIO_ST('u', 12, 16, 0), 0),
 		.channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
 	},
 	[ID_AD7477] = {
 		.channel[0] = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 0, 0,
-				       (1 << IIO_CHAN_INFO_SCALE_SHARED),
+				       IIO_CHAN_INFO_SCALE_SHARED_BIT,
 				       0, 0, IIO_ST('u', 10, 16, 2), 0),
 		.channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
 	},
 	[ID_AD7478] = {
 		.channel[0] = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 0, 0,
-				       (1 << IIO_CHAN_INFO_SCALE_SHARED),
+				       IIO_CHAN_INFO_SCALE_SHARED_BIT,
 				       0, 0, IIO_ST('u', 8, 16, 4), 0),
 		.channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
 	},
 	[ID_AD7495] = {
 		.channel[0] = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 0, 0,
-				       (1 << IIO_CHAN_INFO_SCALE_SHARED),
+				       IIO_CHAN_INFO_SCALE_SHARED_BIT,
 				       0, 0, IIO_ST('u', 12, 16, 0), 0),
 		.channel[1] = IIO_CHAN_SOFT_TIMESTAMP(1),
 		.int_vref_mv = 2500,
@@ -237,11 +237,11 @@ static const struct spi_device_id ad7476_id[] = {
 	{"ad7495", ID_AD7495},
 	{}
 };
+MODULE_DEVICE_TABLE(spi, ad7476_id);
 
 static struct spi_driver ad7476_driver = {
 	.driver = {
 		.name	= "ad7476",
-		.bus	= &spi_bus_type,
 		.owner	= THIS_MODULE,
 	},
 	.probe		= ad7476_probe,
@@ -253,4 +253,3 @@ module_spi_driver(ad7476_driver);
 MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
 MODULE_DESCRIPTION("Analog Devices AD7475/6/7/8(A) AD7466/7/8 ADC");
 MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("spi:ad7476");
diff --git a/drivers/staging/iio/adc/ad7476_ring.c b/drivers/staging/iio/adc/ad7476_ring.c
index e82c1a433f4f..4e298b2a05b2 100644
--- a/drivers/staging/iio/adc/ad7476_ring.c
+++ b/drivers/staging/iio/adc/ad7476_ring.c
@@ -14,36 +14,12 @@
 #include <linux/spi/spi.h>
 
 #include "../iio.h"
-#include "../buffer_generic.h"
+#include "../buffer.h"
 #include "../ring_sw.h"
 #include "../trigger_consumer.h"
 
 #include "ad7476.h"
 
-int ad7476_scan_from_ring(struct iio_dev *indio_dev)
-{
-	struct iio_buffer *ring = indio_dev->buffer;
-	int ret;
-	u8 *ring_data;
-
-	ring_data = kmalloc(ring->access->get_bytes_per_datum(ring),
-			    GFP_KERNEL);
-	if (ring_data == NULL) {
-		ret = -ENOMEM;
-		goto error_ret;
-	}
-	ret = ring->access->read_last(ring, ring_data);
-	if (ret)
-		goto error_free_ring_data;
-
-	ret = (ring_data[0] << 8) | ring_data[1];
-
-error_free_ring_data:
-	kfree(ring_data);
-error_ret:
-	return ret;
-}
-
 /**
  * ad7476_ring_preenable() setup the parameters of the ring before enabling
  *
@@ -56,7 +32,8 @@ static int ad7476_ring_preenable(struct iio_dev *indio_dev)
 	struct ad7476_state *st = iio_priv(indio_dev);
 	struct iio_buffer *ring = indio_dev->buffer;
 
-	st->d_size = ring->scan_count *
+	st->d_size = bitmap_weight(indio_dev->active_scan_mask,
+				   indio_dev->masklength) *
 		st->chip_info->channel[0].scan_type.storagebits / 8;
 
 	if (ring->scan_timestamp) {
@@ -137,7 +114,7 @@ int ad7476_register_ring_funcs_and_init(struct iio_dev *indio_dev)
 	}
 
 	/* Ring buffer functions - here trigger setup related */
-	indio_dev->buffer->setup_ops = &ad7476_ring_setup_ops;
+	indio_dev->setup_ops = &ad7476_ring_setup_ops;
 	indio_dev->buffer->scan_timestamp = true;
 
 	/* Flag that polled ring buffering is possible */
diff --git a/drivers/staging/iio/adc/ad7606.h b/drivers/staging/iio/adc/ad7606.h
index 35018c3f518e..10f59896597f 100644
--- a/drivers/staging/iio/adc/ad7606.h
+++ b/drivers/staging/iio/adc/ad7606.h
@@ -99,7 +99,6 @@ enum ad7606_supported_device_ids {
 	ID_AD7606_4
 };
 
-int ad7606_scan_from_ring(struct iio_dev *indio_dev, unsigned ch);
 int ad7606_register_ring_funcs_and_init(struct iio_dev *indio_dev);
 void ad7606_ring_cleanup(struct iio_dev *indio_dev);
 #endif /* IIO_ADC_AD7606_H_ */
diff --git a/drivers/staging/iio/adc/ad7606_core.c b/drivers/staging/iio/adc/ad7606_core.c
index e3ecd3d2ef3a..ddb7ef92f5c1 100644
--- a/drivers/staging/iio/adc/ad7606_core.c
+++ b/drivers/staging/iio/adc/ad7606_core.c
@@ -20,7 +20,7 @@
 
 #include "../iio.h"
 #include "../sysfs.h"
-#include "../buffer_generic.h"
+#include "../buffer.h"
 
 #include "ad7606.h"
 
@@ -91,7 +91,7 @@ static int ad7606_read_raw(struct iio_dev *indio_dev,
 	case 0:
 		mutex_lock(&indio_dev->mlock);
 		if (iio_buffer_enabled(indio_dev))
-			ret = ad7606_scan_from_ring(indio_dev, chan->address);
+			ret = -EBUSY;
 		else
 			ret = ad7606_scan_direct(indio_dev, chan->address);
 		mutex_unlock(&indio_dev->mlock);
@@ -100,7 +100,7 @@ static int ad7606_read_raw(struct iio_dev *indio_dev,
 			return ret;
 		*val = (short) ret;
 		return IIO_VAL_INT;
-	case (1 << IIO_CHAN_INFO_SCALE_SHARED):
+	case IIO_CHAN_INFO_SCALE:
 		scale_uv = (st->range * 1000 * 2)
 			>> st->chip_info->channels[0].scan_type.realbits;
 		*val =  scale_uv / 1000;
diff --git a/drivers/staging/iio/adc/ad7606_par.c b/drivers/staging/iio/adc/ad7606_par.c
index 688632edd3d7..cff97568189e 100644
--- a/drivers/staging/iio/adc/ad7606_par.c
+++ b/drivers/staging/iio/adc/ad7606_par.c
@@ -189,4 +189,3 @@ module_exit(ad7606_cleanup);
 MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
 MODULE_DESCRIPTION("Analog Devices AD7606 ADC");
 MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("platform:ad7606_par");
diff --git a/drivers/staging/iio/adc/ad7606_ring.c b/drivers/staging/iio/adc/ad7606_ring.c
index 20927fd53728..e8f94a18a943 100644
--- a/drivers/staging/iio/adc/ad7606_ring.c
+++ b/drivers/staging/iio/adc/ad7606_ring.c
@@ -12,36 +12,12 @@
 #include <linux/slab.h>
 
 #include "../iio.h"
-#include "../buffer_generic.h"
+#include "../buffer.h"
 #include "../ring_sw.h"
 #include "../trigger_consumer.h"
 
 #include "ad7606.h"
 
-int ad7606_scan_from_ring(struct iio_dev *indio_dev, unsigned ch)
-{
-	struct iio_buffer *ring = indio_dev->buffer;
-	int ret;
-	u16 *ring_data;
-
-	ring_data = kmalloc(ring->access->get_bytes_per_datum(ring),
-			    GFP_KERNEL);
-	if (ring_data == NULL) {
-		ret = -ENOMEM;
-		goto error_ret;
-	}
-	ret = ring->access->read_last(ring, (u8 *) ring_data);
-	if (ret)
-		goto error_free_ring_data;
-
-	ret = ring_data[ch];
-
-error_free_ring_data:
-	kfree(ring_data);
-error_ret:
-	return ret;
-}
-
 /**
  * ad7606_trigger_handler_th() th/bh of trigger launched polling to ring buffer
  *
@@ -136,8 +112,6 @@ int ad7606_register_ring_funcs_and_init(struct iio_dev *indio_dev)
 
 	/* Effectively select the ring buffer implementation */
 	indio_dev->buffer->access = &ring_sw_access_funcs;
-	indio_dev->buffer->bpe =
-		st->chip_info->channels[0].scan_type.storagebits / 8;
 	indio_dev->pollfunc = iio_alloc_pollfunc(&ad7606_trigger_handler_th_bh,
 						 &ad7606_trigger_handler_th_bh,
 						 0,
@@ -152,7 +126,7 @@ int ad7606_register_ring_funcs_and_init(struct iio_dev *indio_dev)
 
 	/* Ring buffer functions - here trigger setup related */
 
-	indio_dev->buffer->setup_ops = &ad7606_ring_setup_ops;
+	indio_dev->setup_ops = &ad7606_ring_setup_ops;
 	indio_dev->buffer->scan_timestamp = true ;
 
 	INIT_WORK(&st->poll_work, &ad7606_poll_bh_to_ring);
diff --git a/drivers/staging/iio/adc/ad7606_spi.c b/drivers/staging/iio/adc/ad7606_spi.c
index b984bd2048b6..237f1c44d296 100644
--- a/drivers/staging/iio/adc/ad7606_spi.c
+++ b/drivers/staging/iio/adc/ad7606_spi.c
@@ -97,11 +97,11 @@ static const struct spi_device_id ad7606_id[] = {
 	{"ad7606-4", ID_AD7606_4},
 	{}
 };
+MODULE_DEVICE_TABLE(spi, ad7606_id);
 
 static struct spi_driver ad7606_driver = {
 	.driver = {
 		.name = "ad7606",
-		.bus = &spi_bus_type,
 		.owner = THIS_MODULE,
 		.pm    = AD7606_SPI_PM_OPS,
 	},
@@ -114,4 +114,3 @@ module_spi_driver(ad7606_driver);
 MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
 MODULE_DESCRIPTION("Analog Devices AD7606 ADC");
 MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("spi:ad7606_spi");
diff --git a/drivers/staging/iio/adc/ad7780.c b/drivers/staging/iio/adc/ad7780.c
index ec90261cbc3c..a13e58c814e6 100644
--- a/drivers/staging/iio/adc/ad7780.c
+++ b/drivers/staging/iio/adc/ad7780.c
@@ -114,7 +114,7 @@ static int ad7780_read_raw(struct iio_dev *indio_dev,
 			*val *= 128;
 
 		return IIO_VAL_INT;
-	case (1 << IIO_CHAN_INFO_SCALE_SHARED):
+	case IIO_CHAN_INFO_SCALE:
 		scale_uv = (st->int_vref_mv * 100000)
 			>> (channel.scan_type.realbits - 1);
 		*val =  scale_uv / 100000;
@@ -127,12 +127,12 @@ static int ad7780_read_raw(struct iio_dev *indio_dev,
 static const struct ad7780_chip_info ad7780_chip_info_tbl[] = {
 	[ID_AD7780] = {
 		.channel = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 0, 0,
-				    (1 << IIO_CHAN_INFO_SCALE_SHARED),
+				    IIO_CHAN_INFO_SCALE_SHARED_BIT,
 				    0, 0, IIO_ST('s', 24, 32, 8), 0),
 	},
 	[ID_AD7781] = {
 		.channel = IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 0, 0,
-				    (1 << IIO_CHAN_INFO_SCALE_SHARED),
+				    IIO_CHAN_INFO_SCALE_SHARED_BIT,
 				    0, 0, IIO_ST('s', 20, 32, 12), 0),
 	},
 };
@@ -272,11 +272,11 @@ static const struct spi_device_id ad7780_id[] = {
 	{"ad7781", ID_AD7781},
 	{}
 };
+MODULE_DEVICE_TABLE(spi, ad7780_id);
 
 static struct spi_driver ad7780_driver = {
 	.driver = {
 		.name	= "ad7780",
-		.bus	= &spi_bus_type,
 		.owner	= THIS_MODULE,
 	},
 	.probe		= ad7780_probe,
diff --git a/drivers/staging/iio/adc/ad7793.c b/drivers/staging/iio/adc/ad7793.c
index 1c5588e88cdf..6a058b19c49a 100644
--- a/drivers/staging/iio/adc/ad7793.c
+++ b/drivers/staging/iio/adc/ad7793.c
@@ -20,7 +20,7 @@
 
 #include "../iio.h"
 #include "../sysfs.h"
-#include "../buffer_generic.h"
+#include "../buffer.h"
 #include "../ring_sw.h"
 #include "../trigger.h"
 #include "../trigger_consumer.h"
@@ -316,25 +316,6 @@ out:
 	return ret;
 }
 
-static int ad7793_scan_from_ring(struct ad7793_state *st, unsigned ch, int *val)
-{
-	struct iio_buffer *ring = iio_priv_to_dev(st)->buffer;
-	int ret;
-	s64 dat64[2];
-	u32 *dat32 = (u32 *)dat64;
-
-	if (!(test_bit(ch, ring->scan_mask)))
-		return  -EBUSY;
-
-	ret = ring->access->read_last(ring, (u8 *) &dat64);
-	if (ret)
-		return ret;
-
-	*val = *dat32;
-
-	return 0;
-}
-
 static int ad7793_ring_preenable(struct iio_dev *indio_dev)
 {
 	struct ad7793_state *st = iio_priv(indio_dev);
@@ -342,14 +323,15 @@ static int ad7793_ring_preenable(struct iio_dev *indio_dev)
 	size_t d_size;
 	unsigned channel;
 
-	if (!ring->scan_count)
+	if (bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength))
 		return -EINVAL;
 
-	channel = find_first_bit(ring->scan_mask,
+	channel = find_first_bit(indio_dev->active_scan_mask,
 				 indio_dev->masklength);
 
-	d_size = ring->scan_count *
-		 indio_dev->channels[0].scan_type.storagebits / 8;
+	d_size = bitmap_weight(indio_dev->active_scan_mask,
+			       indio_dev->masklength) *
+		indio_dev->channels[0].scan_type.storagebits / 8;
 
 	if (ring->scan_timestamp) {
 		d_size += sizeof(s64);
@@ -411,7 +393,7 @@ static irqreturn_t ad7793_trigger_handler(int irq, void *p)
 	s64 dat64[2];
 	s32 *dat32 = (s32 *)dat64;
 
-	if (ring->scan_count)
+	if (!bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength))
 		__ad7793_read_reg(st, 1, 1, AD7793_REG_DATA,
 				  dat32,
 				  indio_dev->channels[0].scan_type.realbits/8);
@@ -459,7 +441,7 @@ static int ad7793_register_ring_funcs_and_init(struct iio_dev *indio_dev)
 	}
 
 	/* Ring buffer functions - here trigger setup related */
-	indio_dev->buffer->setup_ops = &ad7793_ring_setup_ops;
+	indio_dev->setup_ops = &ad7793_ring_setup_ops;
 
 	/* Flag that polled ring buffering is possible */
 	indio_dev->modes |= INDIO_BUFFER_TRIGGERED;
@@ -493,6 +475,10 @@ static irqreturn_t ad7793_data_rdy_trig_poll(int irq, void *private)
 	return IRQ_HANDLED;
 }
 
+static struct iio_trigger_ops ad7793_trigger_ops = {
+	.owner = THIS_MODULE,
+};
+
 static int ad7793_probe_trigger(struct iio_dev *indio_dev)
 {
 	struct ad7793_state *st = iio_priv(indio_dev);
@@ -505,6 +491,7 @@ static int ad7793_probe_trigger(struct iio_dev *indio_dev)
 		ret = -ENOMEM;
 		goto error_ret;
 	}
+	st->trig->ops = &ad7793_trigger_ops;
 
 	ret = request_irq(st->spi->irq,
 			  ad7793_data_rdy_trig_poll,
@@ -517,7 +504,6 @@ static int ad7793_probe_trigger(struct iio_dev *indio_dev)
 	disable_irq_nosync(st->spi->irq);
 	st->irq_dis = true;
 	st->trig->dev.parent = &st->spi->dev;
-	st->trig->owner = THIS_MODULE;
 	st->trig->private_data = indio_dev;
 
 	ret = iio_trigger_register(st->trig);
@@ -649,8 +635,7 @@ static int ad7793_read_raw(struct iio_dev *indio_dev,
 	case 0:
 		mutex_lock(&indio_dev->mlock);
 		if (iio_buffer_enabled(indio_dev))
-			ret = ad7793_scan_from_ring(st,
-					chan->scan_index, &smpl);
+			ret = -EBUSY;
 		else
 			ret = ad7793_read(st, chan->address,
 					chan->scan_type.realbits / 8, &smpl);
@@ -667,19 +652,21 @@ static int ad7793_read_raw(struct iio_dev *indio_dev,
 
 		return IIO_VAL_INT;
 
-	case (1 << IIO_CHAN_INFO_SCALE_SHARED):
-		*val = st->scale_avail[(st->conf >> 8) & 0x7][0];
-		*val2 = st->scale_avail[(st->conf >> 8) & 0x7][1];
-
-		return IIO_VAL_INT_PLUS_NANO;
-
-	case (1 << IIO_CHAN_INFO_SCALE_SEPARATE):
+	case IIO_CHAN_INFO_SCALE:
 		switch (chan->type) {
 		case IIO_VOLTAGE:
-			/* 1170mV / 2^23 * 6 */
-			scale_uv = (1170ULL * 100000000ULL * 6ULL)
-				>> (chan->scan_type.realbits -
-				(unipolar ? 0 : 1));
+			if (chan->differential) {
+				*val = st->
+					scale_avail[(st->conf >> 8) & 0x7][0];
+				*val2 = st->
+					scale_avail[(st->conf >> 8) & 0x7][1];
+				return IIO_VAL_INT_PLUS_NANO;
+			} else {
+				/* 1170mV / 2^23 * 6 */
+				scale_uv = (1170ULL * 100000000ULL * 6ULL)
+					>> (chan->scan_type.realbits -
+					    (unipolar ? 0 : 1));
+			}
 			break;
 		case IIO_TEMP:
 			/* Always uses unity gain and internal ref */
@@ -716,7 +703,7 @@ static int ad7793_write_raw(struct iio_dev *indio_dev,
 	}
 
 	switch (mask) {
-	case (1 << IIO_CHAN_INFO_SCALE_SHARED):
+	case IIO_CHAN_INFO_SCALE:
 		ret = -EINVAL;
 		for (i = 0; i < ARRAY_SIZE(st->scale_avail); i++)
 			if (val2 == st->scale_avail[i][1]) {
@@ -775,7 +762,7 @@ static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
 			.channel = 0,
 			.channel2 = 0,
 			.address = AD7793_CH_AIN1P_AIN1M,
-			.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),
+			.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,
 			.scan_index = 0,
 			.scan_type = IIO_ST('s', 24, 32, 0)
 		},
@@ -786,7 +773,7 @@ static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
 			.channel = 1,
 			.channel2 = 1,
 			.address = AD7793_CH_AIN2P_AIN2M,
-			.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),
+			.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,
 			.scan_index = 1,
 			.scan_type = IIO_ST('s', 24, 32, 0)
 		},
@@ -797,7 +784,7 @@ static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
 			.channel = 2,
 			.channel2 = 2,
 			.address = AD7793_CH_AIN3P_AIN3M,
-			.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),
+			.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,
 			.scan_index = 2,
 			.scan_type = IIO_ST('s', 24, 32, 0)
 		},
@@ -809,7 +796,7 @@ static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
 			.channel = 2,
 			.channel2 = 2,
 			.address = AD7793_CH_AIN1M_AIN1M,
-			.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),
+			.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,
 			.scan_index = 2,
 			.scan_type = IIO_ST('s', 24, 32, 0)
 		},
@@ -818,7 +805,7 @@ static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
 			.indexed = 1,
 			.channel = 0,
 			.address = AD7793_CH_TEMP,
-			.info_mask = (1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+			.info_mask = IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 			.scan_index = 4,
 			.scan_type = IIO_ST('s', 24, 32, 0),
 		},
@@ -828,7 +815,7 @@ static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
 			.indexed = 1,
 			.channel = 4,
 			.address = AD7793_CH_AVDD_MONITOR,
-			.info_mask = (1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+			.info_mask = IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 			.scan_index = 5,
 			.scan_type = IIO_ST('s', 24, 32, 0),
 		},
@@ -842,7 +829,7 @@ static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
 			.channel = 0,
 			.channel2 = 0,
 			.address = AD7793_CH_AIN1P_AIN1M,
-			.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),
+			.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,
 			.scan_index = 0,
 			.scan_type = IIO_ST('s', 16, 32, 0)
 		},
@@ -853,7 +840,7 @@ static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
 			.channel = 1,
 			.channel2 = 1,
 			.address = AD7793_CH_AIN2P_AIN2M,
-			.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),
+			.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,
 			.scan_index = 1,
 			.scan_type = IIO_ST('s', 16, 32, 0)
 		},
@@ -864,7 +851,7 @@ static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
 			.channel = 2,
 			.channel2 = 2,
 			.address = AD7793_CH_AIN3P_AIN3M,
-			.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),
+			.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,
 			.scan_index = 2,
 			.scan_type = IIO_ST('s', 16, 32, 0)
 		},
@@ -876,7 +863,7 @@ static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
 			.channel = 2,
 			.channel2 = 2,
 			.address = AD7793_CH_AIN1M_AIN1M,
-			.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),
+			.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,
 			.scan_index = 2,
 			.scan_type = IIO_ST('s', 16, 32, 0)
 		},
@@ -885,7 +872,7 @@ static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
 			.indexed = 1,
 			.channel = 0,
 			.address = AD7793_CH_TEMP,
-			.info_mask = (1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+			.info_mask = IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 			.scan_index = 4,
 			.scan_type = IIO_ST('s', 16, 32, 0),
 		},
@@ -895,7 +882,7 @@ static const struct ad7793_chip_info ad7793_chip_info_tbl[] = {
 			.indexed = 1,
 			.channel = 4,
 			.address = AD7793_CH_AVDD_MONITOR,
-			.info_mask = (1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+			.info_mask = IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 			.scan_index = 5,
 			.scan_type = IIO_ST('s', 16, 32, 0),
 		},
@@ -1034,11 +1021,11 @@ static const struct spi_device_id ad7793_id[] = {
 	{"ad7793", ID_AD7793},
 	{}
 };
+MODULE_DEVICE_TABLE(spi, ad7793_id);
 
 static struct spi_driver ad7793_driver = {
 	.driver = {
 		.name	= "ad7793",
-		.bus	= &spi_bus_type,
 		.owner	= THIS_MODULE,
 	},
 	.probe		= ad7793_probe,
diff --git a/drivers/staging/iio/adc/ad7816.c b/drivers/staging/iio/adc/ad7816.c
index acbf9363132b..52b720e2b03a 100644
--- a/drivers/staging/iio/adc/ad7816.c
+++ b/drivers/staging/iio/adc/ad7816.c
@@ -18,6 +18,7 @@
 
 #include "../iio.h"
 #include "../sysfs.h"
+#include "../events.h"
 
 /*
  * AD7816 config masks
@@ -459,7 +460,6 @@ MODULE_DEVICE_TABLE(spi, ad7816_id);
 static struct spi_driver ad7816_driver = {
 	.driver = {
 		.name = "ad7816",
-		.bus = &spi_bus_type,
 		.owner = THIS_MODULE,
 	},
 	.probe = ad7816_probe,
diff --git a/drivers/staging/iio/adc/ad7887.h b/drivers/staging/iio/adc/ad7887.h
index 3452d1819077..bc53b6532121 100644
--- a/drivers/staging/iio/adc/ad7887.h
+++ b/drivers/staging/iio/adc/ad7887.h
@@ -83,14 +83,9 @@ enum ad7887_supported_device_ids {
 };
 
 #ifdef CONFIG_IIO_BUFFER
-int ad7887_scan_from_ring(struct ad7887_state *st, int channum);
 int ad7887_register_ring_funcs_and_init(struct iio_dev *indio_dev);
 void ad7887_ring_cleanup(struct iio_dev *indio_dev);
 #else /* CONFIG_IIO_BUFFER */
-static inline int ad7887_scan_from_ring(struct ad7887_state *st, int channum)
-{
-	return 0;
-}
 
 static inline int
 ad7887_register_ring_funcs_and_init(struct iio_dev *indio_dev)
diff --git a/drivers/staging/iio/adc/ad7887_core.c b/drivers/staging/iio/adc/ad7887_core.c
index 91b8fb09d92b..e9bbc3eed15d 100644
--- a/drivers/staging/iio/adc/ad7887_core.c
+++ b/drivers/staging/iio/adc/ad7887_core.c
@@ -17,7 +17,7 @@
 
 #include "../iio.h"
 #include "../sysfs.h"
-#include "../buffer_generic.h"
+#include "../buffer.h"
 
 
 #include "ad7887.h"
@@ -45,7 +45,7 @@ static int ad7887_read_raw(struct iio_dev *indio_dev,
 	case 0:
 		mutex_lock(&indio_dev->mlock);
 		if (iio_buffer_enabled(indio_dev))
-			ret = ad7887_scan_from_ring(st, 1 << chan->address);
+			ret = -EBUSY;
 		else
 			ret = ad7887_scan_direct(st, chan->address);
 		mutex_unlock(&indio_dev->mlock);
@@ -55,7 +55,7 @@ static int ad7887_read_raw(struct iio_dev *indio_dev,
 		*val = (ret >> st->chip_info->channel[0].scan_type.shift) &
 			RES_MASK(st->chip_info->channel[0].scan_type.realbits);
 		return IIO_VAL_INT;
-	case (1 << IIO_CHAN_INFO_SCALE_SHARED):
+	case IIO_CHAN_INFO_SCALE:
 		scale_uv = (st->int_vref_mv * 1000)
 			>> st->chip_info->channel[0].scan_type.realbits;
 		*val =  scale_uv/1000;
@@ -75,7 +75,7 @@ static const struct ad7887_chip_info ad7887_chip_info_tbl[] = {
 			.type = IIO_VOLTAGE,
 			.indexed = 1,
 			.channel = 1,
-			.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),
+			.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,
 			.address = 1,
 			.scan_index = 1,
 			.scan_type = IIO_ST('u', 12, 16, 0),
@@ -84,7 +84,7 @@ static const struct ad7887_chip_info ad7887_chip_info_tbl[] = {
 			.type = IIO_VOLTAGE,
 			.indexed = 1,
 			.channel = 0,
-			.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),
+			.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,
 			.address = 0,
 			.scan_index = 0,
 			.scan_type = IIO_ST('u', 12, 16, 0),
@@ -246,11 +246,11 @@ static const struct spi_device_id ad7887_id[] = {
 	{"ad7887", ID_AD7887},
 	{}
 };
+MODULE_DEVICE_TABLE(spi, ad7887_id);
 
 static struct spi_driver ad7887_driver = {
 	.driver = {
 		.name	= "ad7887",
-		.bus	= &spi_bus_type,
 		.owner	= THIS_MODULE,
 	},
 	.probe		= ad7887_probe,
@@ -262,4 +262,3 @@ module_spi_driver(ad7887_driver);
 MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
 MODULE_DESCRIPTION("Analog Devices AD7887 ADC");
 MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("spi:ad7887");
diff --git a/drivers/staging/iio/adc/ad7887_ring.c b/drivers/staging/iio/adc/ad7887_ring.c
index cb74cada5611..85076cd962e7 100644
--- a/drivers/staging/iio/adc/ad7887_ring.c
+++ b/drivers/staging/iio/adc/ad7887_ring.c
@@ -13,46 +13,12 @@
 #include <linux/spi/spi.h>
 
 #include "../iio.h"
-#include "../buffer_generic.h"
+#include "../buffer.h"
 #include "../ring_sw.h"
 #include "../trigger_consumer.h"
 
 #include "ad7887.h"
 
-int ad7887_scan_from_ring(struct ad7887_state *st, int channum)
-{
-	struct iio_buffer *ring = iio_priv_to_dev(st)->buffer;
-	int count = 0, ret;
-	u16 *ring_data;
-
-	if (!(test_bit(channum, ring->scan_mask))) {
-		ret = -EBUSY;
-		goto error_ret;
-	}
-
-	ring_data = kmalloc(ring->access->get_bytes_per_datum(ring),
-			    GFP_KERNEL);
-	if (ring_data == NULL) {
-		ret = -ENOMEM;
-		goto error_ret;
-	}
-	ret = ring->access->read_last(ring, (u8 *) ring_data);
-	if (ret)
-		goto error_free_ring_data;
-
-	/* for single channel scan the result is stored with zero offset */
-	if ((test_bit(1, ring->scan_mask) || test_bit(0, ring->scan_mask)) &&
-	    (channum == 1))
-		count = 1;
-
-	ret = be16_to_cpu(ring_data[count]);
-
-error_free_ring_data:
-	kfree(ring_data);
-error_ret:
-	return ret;
-}
-
 /**
  * ad7887_ring_preenable() setup the parameters of the ring before enabling
  *
@@ -65,7 +31,8 @@ static int ad7887_ring_preenable(struct iio_dev *indio_dev)
 	struct ad7887_state *st = iio_priv(indio_dev);
 	struct iio_buffer *ring = indio_dev->buffer;
 
-	st->d_size = ring->scan_count *
+	st->d_size = bitmap_weight(indio_dev->active_scan_mask,
+				   indio_dev->masklength) *
 		st->chip_info->channel[0].scan_type.storagebits / 8;
 
 	if (ring->scan_timestamp) {
@@ -80,7 +47,7 @@ static int ad7887_ring_preenable(struct iio_dev *indio_dev)
 			set_bytes_per_datum(indio_dev->buffer, st->d_size);
 
 	/* We know this is a single long so can 'cheat' */
-	switch (*ring->scan_mask) {
+	switch (*indio_dev->active_scan_mask) {
 	case (1 << 0):
 		st->ring_msg = &st->msg[AD7887_CH0];
 		break;
@@ -121,7 +88,8 @@ static irqreturn_t ad7887_trigger_handler(int irq, void *p)
 	__u8 *buf;
 	int b_sent;
 
-	unsigned int bytes = ring->scan_count *
+	unsigned int bytes = bitmap_weight(indio_dev->active_scan_mask,
+					   indio_dev->masklength) *
 		st->chip_info->channel[0].scan_type.storagebits / 8;
 
 	buf = kzalloc(st->d_size, GFP_KERNEL);
@@ -176,7 +144,7 @@ int ad7887_register_ring_funcs_and_init(struct iio_dev *indio_dev)
 		goto error_deallocate_sw_rb;
 	}
 	/* Ring buffer functions - here trigger setup related */
-	indio_dev->buffer->setup_ops = &ad7887_ring_setup_ops;
+	indio_dev->setup_ops = &ad7887_ring_setup_ops;
 
 	/* Flag that polled ring buffering is possible */
 	indio_dev->modes |= INDIO_BUFFER_TRIGGERED;
diff --git a/drivers/staging/iio/adc/ad799x.h b/drivers/staging/iio/adc/ad799x.h
index eda01d5bab7d..356f690a76fb 100644
--- a/drivers/staging/iio/adc/ad799x.h
+++ b/drivers/staging/iio/adc/ad799x.h
@@ -124,15 +124,9 @@ struct ad799x_platform_data {
 int ad7997_8_set_scan_mode(struct ad799x_state *st, unsigned mask);
 
 #ifdef CONFIG_AD799X_RING_BUFFER
-int ad799x_single_channel_from_ring(struct iio_dev *indio_dev, int channum);
 int ad799x_register_ring_funcs_and_init(struct iio_dev *indio_dev);
 void ad799x_ring_cleanup(struct iio_dev *indio_dev);
 #else /* CONFIG_AD799X_RING_BUFFER */
-int ad799x_single_channel_from_ring(struct iio_dev *indio_dev, int channum)
-{
-	return -EINVAL;
-}
-
 
 static inline int
 ad799x_register_ring_funcs_and_init(struct iio_dev *indio_dev)
diff --git a/drivers/staging/iio/adc/ad799x_core.c b/drivers/staging/iio/adc/ad799x_core.c
index c0d2f886ea2c..d5b581d8bc2b 100644
--- a/drivers/staging/iio/adc/ad799x_core.c
+++ b/drivers/staging/iio/adc/ad799x_core.c
@@ -35,7 +35,8 @@
 
 #include "../iio.h"
 #include "../sysfs.h"
-#include "../buffer_generic.h"
+#include "../events.h"
+#include "../buffer.h"
 
 #include "ad799x.h"
 
@@ -150,8 +151,7 @@ static int ad799x_read_raw(struct iio_dev *indio_dev,
 	case 0:
 		mutex_lock(&indio_dev->mlock);
 		if (iio_buffer_enabled(indio_dev))
-			ret = ad799x_single_channel_from_ring(indio_dev,
-							      chan->scan_index);
+			ret = -EBUSY;
 		else
 			ret = ad799x_scan_direct(st, chan->scan_index);
 		mutex_unlock(&indio_dev->mlock);
@@ -161,7 +161,7 @@ static int ad799x_read_raw(struct iio_dev *indio_dev,
 		*val = (ret >> chan->scan_type.shift) &
 			RES_MASK(chan->scan_type.realbits);
 		return IIO_VAL_INT;
-	case (1 << IIO_CHAN_INFO_SCALE_SHARED):
+	case IIO_CHAN_INFO_SCALE:
 		scale_uv = (st->int_vref_mv * 1000) >> chan->scan_type.realbits;
 		*val =  scale_uv / 1000;
 		*val2 = (scale_uv % 1000) * 1000;
@@ -934,4 +934,3 @@ module_i2c_driver(ad799x_driver);
 MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
 MODULE_DESCRIPTION("Analog Devices AD799x ADC");
 MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("i2c:ad799x");
diff --git a/drivers/staging/iio/adc/ad799x_ring.c b/drivers/staging/iio/adc/ad799x_ring.c
index e3f4698d7815..5dded9e7820a 100644
--- a/drivers/staging/iio/adc/ad799x_ring.c
+++ b/drivers/staging/iio/adc/ad799x_ring.c
@@ -17,42 +17,12 @@
 #include <linux/bitops.h>
 
 #include "../iio.h"
-#include "../buffer_generic.h"
+#include "../buffer.h"
 #include "../ring_sw.h"
 #include "../trigger_consumer.h"
 
 #include "ad799x.h"
 
-int ad799x_single_channel_from_ring(struct iio_dev *indio_dev, int channum)
-{
-	struct iio_buffer *ring = indio_dev->buffer;
-	int count = 0, ret;
-	u16 *ring_data;
-
-	if (!(test_bit(channum, ring->scan_mask))) {
-		ret = -EBUSY;
-		goto error_ret;
-	}
-
-	ring_data = kmalloc(ring->access->get_bytes_per_datum(ring),
-			    GFP_KERNEL);
-	if (ring_data == NULL) {
-		ret = -ENOMEM;
-		goto error_ret;
-	}
-	ret = ring->access->read_last(ring, (u8 *) ring_data);
-	if (ret)
-		goto error_free_ring_data;
-	/* Need a count of channels prior to this one */
-	count = bitmap_weight(ring->scan_mask, channum);
-	ret = be16_to_cpu(ring_data[count]);
-
-error_free_ring_data:
-	kfree(ring_data);
-error_ret:
-	return ret;
-}
-
 /**
  * ad799x_ring_preenable() setup the parameters of the ring before enabling
  *
@@ -71,9 +41,10 @@ static int ad799x_ring_preenable(struct iio_dev *indio_dev)
 	 */
 
 	if (st->id == ad7997 || st->id == ad7998)
-		ad7997_8_set_scan_mode(st, *ring->scan_mask);
+		ad7997_8_set_scan_mode(st, *indio_dev->active_scan_mask);
 
-	st->d_size = ring->scan_count * 2;
+	st->d_size = bitmap_weight(indio_dev->active_scan_mask,
+				   indio_dev->masklength) * 2;
 
 	if (ring->scan_timestamp) {
 		st->d_size += sizeof(s64);
@@ -115,12 +86,13 @@ static irqreturn_t ad799x_trigger_handler(int irq, void *p)
 	case ad7991:
 	case ad7995:
 	case ad7999:
-		cmd = st->config | (*ring->scan_mask << AD799X_CHANNEL_SHIFT);
+		cmd = st->config |
+			(*indio_dev->active_scan_mask << AD799X_CHANNEL_SHIFT);
 		break;
 	case ad7992:
 	case ad7993:
 	case ad7994:
-		cmd = (*ring->scan_mask << AD799X_CHANNEL_SHIFT) |
+		cmd = (*indio_dev->active_scan_mask << AD799X_CHANNEL_SHIFT) |
 			AD7998_CONV_RES_REG;
 		break;
 	case ad7997:
@@ -132,7 +104,8 @@ static irqreturn_t ad799x_trigger_handler(int irq, void *p)
 	}
 
 	b_sent = i2c_smbus_read_i2c_block_data(st->client,
-			cmd, ring->scan_count * 2, rxbuf);
+			cmd, bitmap_weight(indio_dev->active_scan_mask,
+					   indio_dev->masklength) * 2, rxbuf);
 	if (b_sent < 0)
 		goto done;
 
@@ -183,7 +156,7 @@ int ad799x_register_ring_funcs_and_init(struct iio_dev *indio_dev)
 	}
 
 	/* Ring buffer functions - here trigger setup related */
-	indio_dev->buffer->setup_ops = &ad799x_buf_setup_ops;
+	indio_dev->setup_ops = &ad799x_buf_setup_ops;
 	indio_dev->buffer->scan_timestamp = true;
 
 	/* Flag that polled ring buffering is possible */
diff --git a/drivers/staging/iio/adc/adt7310.c b/drivers/staging/iio/adc/adt7310.c
index bc307f3b024e..eec2f325d549 100644
--- a/drivers/staging/iio/adc/adt7310.c
+++ b/drivers/staging/iio/adc/adt7310.c
@@ -17,7 +17,7 @@
 
 #include "../iio.h"
 #include "../sysfs.h"
-
+#include "../events.h"
 /*
  * ADT7310 registers definition
  */
@@ -877,7 +877,6 @@ MODULE_DEVICE_TABLE(spi, adt7310_id);
 static struct spi_driver adt7310_driver = {
 	.driver = {
 		.name = "adt7310",
-		.bus = &spi_bus_type,
 		.owner = THIS_MODULE,
 	},
 	.probe = adt7310_probe,
diff --git a/drivers/staging/iio/adc/adt7410.c b/drivers/staging/iio/adc/adt7410.c
index 3481cf6f7574..c62248ceb37a 100644
--- a/drivers/staging/iio/adc/adt7410.c
+++ b/drivers/staging/iio/adc/adt7410.c
@@ -17,6 +17,7 @@
 
 #include "../iio.h"
 #include "../sysfs.h"
+#include "../events.h"
 
 /*
  * ADT7410 registers definition
diff --git a/drivers/staging/iio/adc/max1363.h b/drivers/staging/iio/adc/max1363.h
index cbcb08a2cb50..2cd0112067b2 100644
--- a/drivers/staging/iio/adc/max1363.h
+++ b/drivers/staging/iio/adc/max1363.h
@@ -146,22 +146,22 @@ struct max1363_state {
 };
 
 const struct max1363_mode
-*max1363_match_mode(unsigned long *mask, const struct max1363_chip_info *ci);
+*max1363_match_mode(const unsigned long *mask,
+		    const struct max1363_chip_info *ci);
 
 int max1363_set_scan_mode(struct max1363_state *st);
 
 #ifdef CONFIG_MAX1363_RING_BUFFER
-
-int max1363_single_channel_from_ring(const long *mask,
-				     struct max1363_state *st);
+int max1363_update_scan_mode(struct iio_dev *indio_dev,
+			     const unsigned long *scan_mask);
 int max1363_register_ring_funcs_and_init(struct iio_dev *indio_dev);
 void max1363_ring_cleanup(struct iio_dev *indio_dev);
 
 #else /* CONFIG_MAX1363_RING_BUFFER */
-
-int max1363_single_channel_from_ring(long mask, struct max1363_state *st)
+int max1363_update_scan_mode(struct iio_dev *indio_dev,
+			     const long *scan_mask)
 {
-	return -EINVAL;
+	return 0;
 }
 
 static inline int
diff --git a/drivers/staging/iio/adc/max1363_core.c b/drivers/staging/iio/adc/max1363_core.c
index 3f28f1ab52a2..b92cb4af18ce 100644
--- a/drivers/staging/iio/adc/max1363_core.c
+++ b/drivers/staging/iio/adc/max1363_core.c
@@ -34,7 +34,8 @@
 
 #include "../iio.h"
 #include "../sysfs.h"
-#include "../buffer_generic.h"
+#include "../events.h"
+#include "../buffer.h"
 
 #include "max1363.h"
 
@@ -147,7 +148,8 @@ static const struct max1363_mode max1363_mode_table[] = {
 };
 
 const struct max1363_mode
-*max1363_match_mode(unsigned long *mask, const struct max1363_chip_info *ci)
+*max1363_match_mode(const unsigned long *mask,
+const struct max1363_chip_info *ci)
 {
 	int i;
 	if (mask)
@@ -189,7 +191,6 @@ static int max1363_read_single_chan(struct iio_dev *indio_dev,
 	int ret = 0;
 	s32 data;
 	char rxbuf[2];
-	const unsigned long *mask;
 	struct max1363_state *st = iio_priv(indio_dev);
 	struct i2c_client *client = st->client;
 
@@ -198,46 +199,38 @@ static int max1363_read_single_chan(struct iio_dev *indio_dev,
 	 * If monitor mode is enabled, the method for reading a single
 	 * channel will have to be rather different and has not yet
 	 * been implemented.
+	 *
+	 * Also, cannot read directly if buffered capture enabled.
 	 */
-	if (st->monitor_on) {
+	if (st->monitor_on || iio_buffer_enabled(indio_dev)) {
 		ret = -EBUSY;
 		goto error_ret;
 	}
 
-	/* If ring buffer capture is occurring, query the buffer */
-	if (iio_buffer_enabled(indio_dev)) {
-		mask = max1363_mode_table[chan->address].modemask;
-		data = max1363_single_channel_from_ring(mask, st);
+	/* Check to see if current scan mode is correct */
+	if (st->current_mode != &max1363_mode_table[chan->address]) {
+		/* Update scan mode if needed */
+		st->current_mode = &max1363_mode_table[chan->address];
+		ret = max1363_set_scan_mode(st);
+		if (ret < 0)
+			goto error_ret;
+	}
+	if (st->chip_info->bits != 8) {
+		/* Get reading */
+		data = i2c_master_recv(client, rxbuf, 2);
 		if (data < 0) {
 			ret = data;
 			goto error_ret;
 		}
+		data = (s32)(rxbuf[1]) | ((s32)(rxbuf[0] & 0x0F)) << 8;
 	} else {
-		/* Check to see if current scan mode is correct */
-		if (st->current_mode != &max1363_mode_table[chan->address]) {
-			/* Update scan mode if needed */
-			st->current_mode = &max1363_mode_table[chan->address];
-			ret = max1363_set_scan_mode(st);
-			if (ret < 0)
-				goto error_ret;
-		}
-		if (st->chip_info->bits != 8) {
-			/* Get reading */
-			data = i2c_master_recv(client, rxbuf, 2);
-			if (data < 0) {
-				ret = data;
-				goto error_ret;
-			}
-			data = (s32)(rxbuf[1]) | ((s32)(rxbuf[0] & 0x0F)) << 8;
-		} else {
-			/* Get reading */
-			data = i2c_master_recv(client, rxbuf, 1);
-			if (data < 0) {
-				ret = data;
-				goto error_ret;
-			}
-			data = rxbuf[0];
+		/* Get reading */
+		data = i2c_master_recv(client, rxbuf, 1);
+		if (data < 0) {
+			ret = data;
+			goto error_ret;
 		}
+		data = rxbuf[0];
 	}
 	*val = data;
 error_ret:
@@ -260,7 +253,7 @@ static int max1363_read_raw(struct iio_dev *indio_dev,
 		if (ret < 0)
 			return ret;
 		return IIO_VAL_INT;
-	case (1 << IIO_CHAN_INFO_SCALE_SHARED):
+	case IIO_CHAN_INFO_SCALE:
 		if ((1 << (st->chip_info->bits + 1)) >
 		    st->chip_info->int_vref_mv) {
 			*val = 0;
@@ -288,7 +281,7 @@ static const enum max1363_modes max1363_mode_list[] = {
 #define MAX1363_EV_M						\
 	(IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING)	\
 	 | IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING))
-#define MAX1363_INFO_MASK (1 << IIO_CHAN_INFO_SCALE_SHARED)
+#define MAX1363_INFO_MASK IIO_CHAN_INFO_SCALE_SHARED_BIT
 #define MAX1363_CHAN_U(num, addr, si, bits, evmask)			\
 	{								\
 		.type = IIO_VOLTAGE,					\
@@ -296,7 +289,13 @@ static const enum max1363_modes max1363_mode_list[] = {
 		.channel = num,						\
 		.address = addr,					\
 		.info_mask = MAX1363_INFO_MASK,				\
-		.scan_type = IIO_ST('u', bits, (bits > 8) ? 16 : 8, 0), \
+		.datasheet_name = "AIN"#num,				\
+		.scan_type = {						\
+			.sign = 'u',					\
+			.realbits = bits,				\
+			.storagebits = (bits > 8) ? 16 : 8,		\
+			.endianness = IIO_BE,				\
+		},							\
 		.scan_index = si,					\
 		.event_mask = evmask,					\
 	}
@@ -311,7 +310,13 @@ static const enum max1363_modes max1363_mode_list[] = {
 		.channel2 = num2,					\
 		.address = addr,					\
 		.info_mask = MAX1363_INFO_MASK,				\
-		.scan_type = IIO_ST('u', bits, (bits > 8) ? 16 : 8, 0), \
+		.datasheet_name = "AIN"#num"-AIN"#num2,			\
+		.scan_type = {						\
+			.sign = 's',					\
+			.realbits = bits,				\
+			.storagebits = (bits > 8) ? 16 : 8,		\
+			.endianness = IIO_BE,				\
+		},							\
 		.scan_index = si,					\
 		.event_mask = evmask,					\
 	}
@@ -833,6 +838,7 @@ static const struct iio_info max1363_info = {
 	.read_event_config = &max1363_read_event_config,
 	.write_event_config = &max1363_write_event_config,
 	.read_raw = &max1363_read_raw,
+	.update_scan_mode = &max1363_update_scan_mode,
 	.driver_module = THIS_MODULE,
 	.event_attrs = &max1363_event_attribute_group,
 };
diff --git a/drivers/staging/iio/adc/max1363_ring.c b/drivers/staging/iio/adc/max1363_ring.c
index df6893e058cc..f730b3fb971a 100644
--- a/drivers/staging/iio/adc/max1363_ring.c
+++ b/drivers/staging/iio/adc/max1363_ring.c
@@ -15,88 +15,25 @@
 #include <linux/bitops.h>
 
 #include "../iio.h"
-#include "../buffer_generic.h"
+#include "../buffer.h"
 #include "../ring_sw.h"
 #include "../trigger_consumer.h"
 
 #include "max1363.h"
 
-int max1363_single_channel_from_ring(const long *mask, struct max1363_state *st)
-{
-	struct iio_buffer *ring = iio_priv_to_dev(st)->buffer;
-	int count = 0, ret, index;
-	u8 *ring_data;
-	index = find_first_bit(mask, MAX1363_MAX_CHANNELS);
-
-	if (!(test_bit(index, st->current_mode->modemask))) {
-		ret = -EBUSY;
-		goto error_ret;
-	}
-
-	ring_data = kmalloc(ring->access->get_bytes_per_datum(ring),
-			    GFP_KERNEL);
-	if (ring_data == NULL) {
-		ret = -ENOMEM;
-		goto error_ret;
-	}
-	ret = ring->access->read_last(ring, ring_data);
-	if (ret)
-		goto error_free_ring_data;
-	/* Need a count of channels prior to this one */
-
-	count = bitmap_weight(mask, index - 1);
-	if (st->chip_info->bits != 8)
-		ret = ((int)(ring_data[count*2 + 0] & 0x0F) << 8)
-			+ (int)(ring_data[count*2 + 1]);
-	else
-		ret = ring_data[count];
-
-error_free_ring_data:
-	kfree(ring_data);
-error_ret:
-	return ret;
-}
-
-
-/**
- * max1363_ring_preenable() - setup the parameters of the ring before enabling
- *
- * The complex nature of the setting of the nuber of bytes per datum is due
- * to this driver currently ensuring that the timestamp is stored at an 8
- * byte boundary.
- **/
-static int max1363_ring_preenable(struct iio_dev *indio_dev)
+int max1363_update_scan_mode(struct iio_dev *indio_dev,
+			     const unsigned long *scan_mask)
 {
 	struct max1363_state *st = iio_priv(indio_dev);
-	struct iio_buffer *ring = indio_dev->buffer;
-	size_t d_size = 0;
-	unsigned long numvals;
 
 	/*
 	 * Need to figure out the current mode based upon the requested
 	 * scan mask in iio_dev
 	 */
-	st->current_mode = max1363_match_mode(ring->scan_mask,
-					st->chip_info);
+	st->current_mode = max1363_match_mode(scan_mask, st->chip_info);
 	if (!st->current_mode)
 		return -EINVAL;
-
 	max1363_set_scan_mode(st);
-
-	numvals = bitmap_weight(st->current_mode->modemask,
-				indio_dev->masklength);
-	if (ring->access->set_bytes_per_datum) {
-		if (ring->scan_timestamp)
-			d_size += sizeof(s64);
-		if (st->chip_info->bits != 8)
-			d_size += numvals*2;
-		else
-			d_size += numvals;
-		if (ring->scan_timestamp && (d_size % 8))
-			d_size += 8 - (d_size % 8);
-		ring->access->set_bytes_per_datum(ring, d_size);
-	}
-
 	return 0;
 }
 
@@ -114,12 +51,14 @@ static irqreturn_t max1363_trigger_handler(int irq, void *p)
 
 	/* Ensure the timestamp is 8 byte aligned */
 	if (st->chip_info->bits != 8)
-		d_size = numvals*2 + sizeof(s64);
+		d_size = numvals*2;
 	else
-		d_size = numvals + sizeof(s64);
-	if (d_size % sizeof(s64))
-		d_size += sizeof(s64) - (d_size % sizeof(s64));
-
+		d_size = numvals;
+	if (indio_dev->buffer->scan_timestamp) {
+		d_size += sizeof(s64);
+		if (d_size % sizeof(s64))
+			d_size += sizeof(s64) - (d_size % sizeof(s64));
+	}
 	/* Monitor mode prevents reading. Whilst not currently implemented
 	 * might as well have this test in here in the meantime as it does
 	 * no harm.
@@ -139,9 +78,10 @@ static irqreturn_t max1363_trigger_handler(int irq, void *p)
 
 	time_ns = iio_get_time_ns();
 
-	memcpy(rxbuf + d_size - sizeof(s64), &time_ns, sizeof(time_ns));
+	if (indio_dev->buffer->scan_timestamp)
+		memcpy(rxbuf + d_size - sizeof(s64), &time_ns, sizeof(time_ns));
+	iio_push_to_buffer(indio_dev->buffer, rxbuf, time_ns);
 
-	indio_dev->buffer->access->store_to(indio_dev->buffer, rxbuf, time_ns);
 done:
 	iio_trigger_notify_done(indio_dev->trig);
 	kfree(rxbuf);
@@ -151,7 +91,7 @@ done:
 
 static const struct iio_buffer_setup_ops max1363_ring_setup_ops = {
 	.postenable = &iio_triggered_buffer_postenable,
-	.preenable = &max1363_ring_preenable,
+	.preenable = &iio_sw_buffer_preenable,
 	.predisable = &iio_triggered_buffer_predisable,
 };
 
@@ -179,7 +119,7 @@ int max1363_register_ring_funcs_and_init(struct iio_dev *indio_dev)
 	/* Effectively select the ring buffer implementation */
 	indio_dev->buffer->access = &ring_sw_access_funcs;
 	/* Ring buffer functions - here trigger setup related */
-	indio_dev->buffer->setup_ops = &max1363_ring_setup_ops;
+	indio_dev->setup_ops = &max1363_ring_setup_ops;
 
 	/* Flag that polled ring buffering is possible */
 	indio_dev->modes |= INDIO_BUFFER_TRIGGERED;
diff --git a/drivers/staging/iio/addac/adt7316-spi.c b/drivers/staging/iio/addac/adt7316-spi.c
index 1e93c7b7aed9..1ea3cd06299d 100644
--- a/drivers/staging/iio/addac/adt7316-spi.c
+++ b/drivers/staging/iio/addac/adt7316-spi.c
@@ -151,7 +151,6 @@ static int adt7316_spi_resume(struct spi_device *spi_dev)
 static struct spi_driver adt7316_driver = {
 	.driver = {
 		.name = "adt7316",
-		.bus = &spi_bus_type,
 		.owner = THIS_MODULE,
 	},
 	.probe = adt7316_spi_probe,
diff --git a/drivers/staging/iio/addac/adt7316.c b/drivers/staging/iio/addac/adt7316.c
index 8df24704ff26..13c39292d3f2 100644
--- a/drivers/staging/iio/addac/adt7316.c
+++ b/drivers/staging/iio/addac/adt7316.c
@@ -20,6 +20,7 @@
 #include <linux/module.h>
 
 #include "../iio.h"
+#include "../events.h"
 #include "../sysfs.h"
 #include "adt7316.h"
 
diff --git a/drivers/staging/iio/buffer_generic.h b/drivers/staging/iio/buffer.h
index 9e8f01009979..6fb6e64181a5 100644
--- a/drivers/staging/iio/buffer_generic.h
+++ b/drivers/staging/iio/buffer.h
@@ -11,7 +11,6 @@
 #define _IIO_BUFFER_GENERIC_H_
 #include <linux/sysfs.h>
 #include "iio.h"
-#include "chrdev.h"
 
 #ifdef CONFIG_IIO_BUFFER
 
@@ -19,22 +18,14 @@ struct iio_buffer;
 
 /**
  * struct iio_buffer_access_funcs - access functions for buffers.
- * @mark_in_use:	reference counting, typically to prevent module removal
- * @unmark_in_use:	reduce reference count when no longer using buffer
  * @store_to:		actually store stuff to the buffer
- * @read_last:		get the last element stored
- * @read_first_n:	try to get a specified number of elements (must exist)
- * @mark_param_change:	notify buffer that some relevant parameter has changed
- *			Often this means the underlying storage may need to
- *			change.
+ * @read_first_n:	try to get a specified number of bytes (must exist)
  * @request_update:	if a parameter change has been marked, update underlying
  *			storage.
  * @get_bytes_per_datum:get current bytes per datum
  * @set_bytes_per_datum:set number of bytes per datum
  * @get_length:		get number of datums in buffer
  * @set_length:		set number of datums in buffer
- * @is_enabled:		query if buffer is currently being used
- * @enable:		enable the buffer
  *
  * The purpose of this structure is to make the buffer element
  * modular as event for a given driver, different usecases may require
@@ -45,85 +36,60 @@ struct iio_buffer;
  * any of them not existing.
  **/
 struct iio_buffer_access_funcs {
-	void (*mark_in_use)(struct iio_buffer *buffer);
-	void (*unmark_in_use)(struct iio_buffer *buffer);
-
 	int (*store_to)(struct iio_buffer *buffer, u8 *data, s64 timestamp);
-	int (*read_last)(struct iio_buffer *buffer, u8 *data);
 	int (*read_first_n)(struct iio_buffer *buffer,
 			    size_t n,
 			    char __user *buf);
 
-	int (*mark_param_change)(struct iio_buffer *buffer);
 	int (*request_update)(struct iio_buffer *buffer);
 
 	int (*get_bytes_per_datum)(struct iio_buffer *buffer);
 	int (*set_bytes_per_datum)(struct iio_buffer *buffer, size_t bpd);
 	int (*get_length)(struct iio_buffer *buffer);
 	int (*set_length)(struct iio_buffer *buffer, int length);
-
-	int (*is_enabled)(struct iio_buffer *buffer);
-	int (*enable)(struct iio_buffer *buffer);
-};
-
-/**
- * struct iio_buffer_setup_ops - buffer setup related callbacks
- * @preenable:		[DRIVER] function to run prior to marking buffer enabled
- * @postenable:		[DRIVER] function to run after marking buffer enabled
- * @predisable:		[DRIVER] function to run prior to marking buffer
- *			disabled
- * @postdisable:	[DRIVER] function to run after marking buffer disabled
- */
-struct iio_buffer_setup_ops {
-	int				(*preenable)(struct iio_dev *);
-	int				(*postenable)(struct iio_dev *);
-	int				(*predisable)(struct iio_dev *);
-	int				(*postdisable)(struct iio_dev *);
 };
 
 /**
  * struct iio_buffer - general buffer structure
- * @indio_dev:		industrial I/O device structure
- * @owner:		module that owns the buffer (for ref counting)
  * @length:		[DEVICE] number of datums in buffer
  * @bytes_per_datum:	[DEVICE] size of individual datum including timestamp
- * @bpe:		[DEVICE] size of individual channel value
  * @scan_el_attrs:	[DRIVER] control of scan elements if that scan mode
  *			control method is used
- * @scan_count:	[INTERN] the number of elements in the current scan mode
  * @scan_mask:		[INTERN] bitmask used in masking scan mode elements
+ * @scan_index_timestamp:[INTERN] cache of the index to the timestamp
  * @scan_timestamp:	[INTERN] does the scan mode include a timestamp
  * @access:		[DRIVER] buffer access functions associated with the
  *			implementation.
- * @flags:		[INTERN] file ops related flags including busy flag.
+ * @scan_el_dev_attr_list:[INTERN] list of scan element related attributes.
+ * @scan_el_group:	[DRIVER] attribute group for those attributes not
+ *			created from the iio_chan_info array.
+ * @pollq:		[INTERN] wait queue to allow for polling on the buffer.
+ * @stufftoread:	[INTERN] flag to indicate new data.
+ * @demux_list:		[INTERN] list of operations required to demux the scan.
+ * @demux_bounce:	[INTERN] buffer for doing gather from incoming scan.
  **/
 struct iio_buffer {
-	struct iio_dev				*indio_dev;
-	struct module				*owner;
 	int					length;
 	int					bytes_per_datum;
-	int					bpe;
 	struct attribute_group			*scan_el_attrs;
-	int					scan_count;
 	long					*scan_mask;
 	bool					scan_timestamp;
+	unsigned				scan_index_timestamp;
 	const struct iio_buffer_access_funcs	*access;
-	const struct iio_buffer_setup_ops		*setup_ops;
 	struct list_head			scan_el_dev_attr_list;
 	struct attribute_group			scan_el_group;
 	wait_queue_head_t			pollq;
 	bool					stufftoread;
-	unsigned long				flags;
 	const struct attribute_group *attrs;
+	struct list_head			demux_list;
+	unsigned char				*demux_bounce;
 };
 
 /**
  * iio_buffer_init() - Initialize the buffer structure
  * @buffer: buffer to be initialized
- * @indio_dev: the iio device the buffer is assocated with
  **/
-void iio_buffer_init(struct iio_buffer *buffer,
-			  struct iio_dev *indio_dev);
+void iio_buffer_init(struct iio_buffer *buffer);
 
 void iio_buffer_deinit(struct iio_buffer *buffer);
 
@@ -140,17 +106,27 @@ static inline void __iio_update_buffer(struct iio_buffer *buffer,
 	buffer->length = length;
 }
 
-int iio_scan_mask_query(struct iio_buffer *buffer, int bit);
+int iio_scan_mask_query(struct iio_dev *indio_dev,
+			struct iio_buffer *buffer, int bit);
 
 /**
  * iio_scan_mask_set() - set particular bit in the scan mask
  * @buffer: the buffer whose scan mask we are interested in
  * @bit: the bit to be set.
  **/
-int iio_scan_mask_set(struct iio_buffer *buffer, int bit);
+int iio_scan_mask_set(struct iio_dev *indio_dev,
+		      struct iio_buffer *buffer, int bit);
 
-#define to_iio_buffer(d)				\
-	container_of(d, struct iio_buffer, dev)
+/**
+ * iio_push_to_buffer() - push to a registered buffer.
+ * @buffer:		IIO buffer structure for device
+ * @scan:		Full scan.
+ * @timestamp:
+ */
+int iio_push_to_buffer(struct iio_buffer *buffer, unsigned char *data,
+		       s64 timestamp);
+
+int iio_update_demux(struct iio_dev *indio_dev);
 
 /**
  * iio_buffer_register() - register the buffer with IIO core
@@ -180,12 +156,6 @@ ssize_t iio_buffer_write_length(struct device *dev,
 			      const char *buf,
 			      size_t len);
 /**
- * iio_buffer_read_bytes_per_datum() - attr for number of bytes in whole datum
- **/
-ssize_t iio_buffer_read_bytes_per_datum(struct device *dev,
-					struct device_attribute *attr,
-					char *buf);
-/**
  * iio_buffer_store_enable() - attr to turn the buffer on
  **/
 ssize_t iio_buffer_store_enable(struct device *dev,
@@ -201,9 +171,6 @@ ssize_t iio_buffer_show_enable(struct device *dev,
 #define IIO_BUFFER_LENGTH_ATTR DEVICE_ATTR(length, S_IRUGO | S_IWUSR,	\
 					   iio_buffer_read_length,	\
 					   iio_buffer_write_length)
-#define IIO_BUFFER_BYTES_PER_DATUM_ATTR					\
-	DEVICE_ATTR(bytes_per_datum, S_IRUGO | S_IWUSR,			\
-		    iio_buffer_read_bytes_per_datum, NULL)
 
 #define IIO_BUFFER_ENABLE_ATTR DEVICE_ATTR(enable, S_IRUGO | S_IWUSR,	\
 					   iio_buffer_show_enable,	\
diff --git a/drivers/staging/iio/cdc/ad7150.c b/drivers/staging/iio/cdc/ad7150.c
index 47181875e113..b73007dcf4b3 100644
--- a/drivers/staging/iio/cdc/ad7150.c
+++ b/drivers/staging/iio/cdc/ad7150.c
@@ -15,7 +15,7 @@
 
 #include "../iio.h"
 #include "../sysfs.h"
-
+#include "../events.h"
 /*
  * AD7150 registers definition
  */
@@ -111,7 +111,7 @@ static int ad7150_read_raw(struct iio_dev *indio_dev,
 			return ret;
 		*val = swab16(ret);
 		return IIO_VAL_INT;
-	case (1 << IIO_CHAN_INFO_AVERAGE_RAW_SEPARATE):
+	case IIO_CHAN_INFO_AVERAGE_RAW:
 		ret = i2c_smbus_read_word_data(chip->client,
 					ad7150_addresses[chan->channel][1]);
 		if (ret < 0)
@@ -429,7 +429,7 @@ static const struct iio_chan_spec ad7150_channels[] = {
 		.type = IIO_CAPACITANCE,
 		.indexed = 1,
 		.channel = 0,
-		.info_mask = (1 << IIO_CHAN_INFO_AVERAGE_RAW_SEPARATE),
+		.info_mask = IIO_CHAN_INFO_AVERAGE_RAW_SEPARATE_BIT,
 		.event_mask =
 		IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING) |
 		IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING) |
@@ -441,7 +441,7 @@ static const struct iio_chan_spec ad7150_channels[] = {
 		.type = IIO_CAPACITANCE,
 		.indexed = 1,
 		.channel = 1,
-		.info_mask = (1 << IIO_CHAN_INFO_AVERAGE_RAW_SEPARATE),
+		.info_mask = IIO_CHAN_INFO_AVERAGE_RAW_SEPARATE_BIT,
 		.event_mask =
 		IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING) |
 		IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING) |
diff --git a/drivers/staging/iio/cdc/ad7152.c b/drivers/staging/iio/cdc/ad7152.c
index 152d3be6d97d..fdb83c35e6dd 100644
--- a/drivers/staging/iio/cdc/ad7152.c
+++ b/drivers/staging/iio/cdc/ad7152.c
@@ -259,7 +259,7 @@ static int ad7152_write_raw(struct iio_dev *indio_dev,
 	mutex_lock(&indio_dev->mlock);
 
 	switch (mask) {
-	case (1 << IIO_CHAN_INFO_CALIBSCALE_SEPARATE):
+	case IIO_CHAN_INFO_CALIBSCALE:
 		if (val != 1) {
 			ret = -EINVAL;
 			goto out;
@@ -276,7 +276,7 @@ static int ad7152_write_raw(struct iio_dev *indio_dev,
 		ret = 0;
 		break;
 
-	case (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE):
+	case IIO_CHAN_INFO_CALIBBIAS:
 		if ((val < 0) | (val > 0xFFFF)) {
 			ret = -EINVAL;
 			goto out;
@@ -289,7 +289,7 @@ static int ad7152_write_raw(struct iio_dev *indio_dev,
 
 		ret = 0;
 		break;
-	case (1 << IIO_CHAN_INFO_SCALE_SEPARATE):
+	case IIO_CHAN_INFO_SCALE:
 		if (val != 0) {
 			ret = -EINVAL;
 			goto out;
@@ -372,7 +372,7 @@ static int ad7152_read_raw(struct iio_dev *indio_dev,
 
 		ret = IIO_VAL_INT;
 		break;
-	case (1 << IIO_CHAN_INFO_CALIBSCALE_SEPARATE):
+	case IIO_CHAN_INFO_CALIBSCALE:
 
 		ret = i2c_smbus_read_word_data(chip->client,
 				ad7152_addresses[chan->channel][AD7152_GAIN]);
@@ -384,7 +384,7 @@ static int ad7152_read_raw(struct iio_dev *indio_dev,
 
 		ret = IIO_VAL_INT_PLUS_MICRO;
 		break;
-	case (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE):
+	case IIO_CHAN_INFO_CALIBBIAS:
 		ret = i2c_smbus_read_word_data(chip->client,
 				ad7152_addresses[chan->channel][AD7152_OFFS]);
 		if (ret < 0)
@@ -393,7 +393,7 @@ static int ad7152_read_raw(struct iio_dev *indio_dev,
 
 		ret = IIO_VAL_INT;
 		break;
-	case (1 << IIO_CHAN_INFO_SCALE_SEPARATE):
+	case IIO_CHAN_INFO_SCALE:
 		ret = i2c_smbus_read_byte_data(chip->client,
 				ad7152_addresses[chan->channel][AD7152_SETUP]);
 		if (ret < 0)
@@ -416,7 +416,7 @@ static int ad7152_write_raw_get_fmt(struct iio_dev *indio_dev,
 			       long mask)
 {
 	switch (mask) {
-	case (1 << IIO_CHAN_INFO_SCALE_SEPARATE):
+	case IIO_CHAN_INFO_SCALE:
 		return IIO_VAL_INT_PLUS_NANO;
 	default:
 		return IIO_VAL_INT_PLUS_MICRO;
@@ -436,34 +436,34 @@ static const struct iio_chan_spec ad7152_channels[] = {
 		.type = IIO_CAPACITANCE,
 		.indexed = 1,
 		.channel = 0,
-		.info_mask = (1 << IIO_CHAN_INFO_CALIBSCALE_SEPARATE) |
-		(1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE) |
-		(1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+		.info_mask = IIO_CHAN_INFO_CALIBSCALE_SEPARATE_BIT |
+		IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT |
+		IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 	}, {
 		.type = IIO_CAPACITANCE,
 		.differential = 1,
 		.indexed = 1,
 		.channel = 0,
 		.channel2 = 2,
-		.info_mask = (1 << IIO_CHAN_INFO_CALIBSCALE_SEPARATE) |
-		(1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE) |
-		(1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+		.info_mask = IIO_CHAN_INFO_CALIBSCALE_SEPARATE_BIT |
+		IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT |
+		IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 	}, {
 		.type = IIO_CAPACITANCE,
 		.indexed = 1,
 		.channel = 1,
-		.info_mask = (1 << IIO_CHAN_INFO_CALIBSCALE_SEPARATE) |
-		(1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE) |
-		(1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+		.info_mask = IIO_CHAN_INFO_CALIBSCALE_SEPARATE_BIT |
+		IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT |
+		IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 	}, {
 		.type = IIO_CAPACITANCE,
 		.differential = 1,
 		.indexed = 1,
 		.channel = 1,
 		.channel2 = 3,
-		.info_mask = (1 << IIO_CHAN_INFO_CALIBSCALE_SEPARATE) |
-		(1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE) |
-		(1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+		.info_mask = IIO_CHAN_INFO_CALIBSCALE_SEPARATE_BIT |
+		IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT |
+		IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 	}
 };
 /*
diff --git a/drivers/staging/iio/cdc/ad7746.c b/drivers/staging/iio/cdc/ad7746.c
index 9df590891a69..40b8512cbc32 100644
--- a/drivers/staging/iio/cdc/ad7746.c
+++ b/drivers/staging/iio/cdc/ad7746.c
@@ -123,7 +123,7 @@ static const struct iio_chan_spec ad7746_channels[] = {
 		.type = IIO_VOLTAGE,
 		.indexed = 1,
 		.channel = 0,
-		.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),
+		.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		.address = AD7746_REG_VT_DATA_HIGH << 8 |
 			AD7746_VTSETUP_VTMD_EXT_VIN,
 	},
@@ -132,7 +132,7 @@ static const struct iio_chan_spec ad7746_channels[] = {
 		.indexed = 1,
 		.channel = 1,
 		.extend_name = "supply",
-		.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),
+		.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		.address = AD7746_REG_VT_DATA_HIGH << 8 |
 			AD7746_VTSETUP_VTMD_VDD_MON,
 	},
@@ -156,10 +156,10 @@ static const struct iio_chan_spec ad7746_channels[] = {
 		.type = IIO_CAPACITANCE,
 		.indexed = 1,
 		.channel = 0,
-		.info_mask = (1 << IIO_CHAN_INFO_CALIBSCALE_SEPARATE) |
-		(1 << IIO_CHAN_INFO_CALIBBIAS_SHARED) |
-		(1 << IIO_CHAN_INFO_OFFSET_SEPARATE) |
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		.info_mask = IIO_CHAN_INFO_CALIBSCALE_SEPARATE_BIT |
+		IIO_CHAN_INFO_CALIBBIAS_SHARED_BIT |
+		IIO_CHAN_INFO_OFFSET_SEPARATE_BIT |
+		IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		.address = AD7746_REG_CAP_DATA_HIGH << 8,
 	},
 	[CIN1_DIFF] = {
@@ -168,10 +168,10 @@ static const struct iio_chan_spec ad7746_channels[] = {
 		.indexed = 1,
 		.channel = 0,
 		.channel2 = 2,
-		.info_mask = (1 << IIO_CHAN_INFO_CALIBSCALE_SEPARATE) |
-		(1 << IIO_CHAN_INFO_CALIBBIAS_SHARED) |
-		(1 << IIO_CHAN_INFO_OFFSET_SEPARATE) |
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		.info_mask = IIO_CHAN_INFO_CALIBSCALE_SEPARATE_BIT |
+		IIO_CHAN_INFO_CALIBBIAS_SHARED_BIT |
+		IIO_CHAN_INFO_OFFSET_SEPARATE_BIT |
+		IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		.address = AD7746_REG_CAP_DATA_HIGH << 8 |
 			AD7746_CAPSETUP_CAPDIFF
 	},
@@ -179,10 +179,10 @@ static const struct iio_chan_spec ad7746_channels[] = {
 		.type = IIO_CAPACITANCE,
 		.indexed = 1,
 		.channel = 1,
-		.info_mask = (1 << IIO_CHAN_INFO_CALIBSCALE_SEPARATE) |
-		(1 << IIO_CHAN_INFO_CALIBBIAS_SHARED) |
-		(1 << IIO_CHAN_INFO_OFFSET_SEPARATE) |
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		.info_mask = IIO_CHAN_INFO_CALIBSCALE_SEPARATE_BIT |
+		IIO_CHAN_INFO_CALIBBIAS_SHARED_BIT |
+		IIO_CHAN_INFO_OFFSET_SEPARATE_BIT |
+		IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		.address = AD7746_REG_CAP_DATA_HIGH << 8 |
 			AD7746_CAPSETUP_CIN2,
 	},
@@ -192,10 +192,10 @@ static const struct iio_chan_spec ad7746_channels[] = {
 		.indexed = 1,
 		.channel = 1,
 		.channel2 = 3,
-		.info_mask = (1 << IIO_CHAN_INFO_CALIBSCALE_SEPARATE) |
-		(1 << IIO_CHAN_INFO_CALIBBIAS_SHARED) |
-		(1 << IIO_CHAN_INFO_OFFSET_SEPARATE) |
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		.info_mask = IIO_CHAN_INFO_CALIBSCALE_SEPARATE_BIT |
+		IIO_CHAN_INFO_CALIBBIAS_SHARED_BIT |
+		IIO_CHAN_INFO_OFFSET_SEPARATE_BIT |
+		IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		.address = AD7746_REG_CAP_DATA_HIGH << 8 |
 			AD7746_CAPSETUP_CAPDIFF | AD7746_CAPSETUP_CIN2,
 	}
@@ -477,7 +477,7 @@ static int ad7746_write_raw(struct iio_dev *indio_dev,
 	mutex_lock(&indio_dev->mlock);
 
 	switch (mask) {
-	case (1 << IIO_CHAN_INFO_CALIBSCALE_SEPARATE):
+	case IIO_CHAN_INFO_CALIBSCALE:
 		if (val != 1) {
 			ret = -EINVAL;
 			goto out;
@@ -503,7 +503,7 @@ static int ad7746_write_raw(struct iio_dev *indio_dev,
 
 		ret = 0;
 		break;
-	case (1 << IIO_CHAN_INFO_CALIBBIAS_SHARED):
+	case IIO_CHAN_INFO_CALIBBIAS:
 		if ((val < 0) | (val > 0xFFFF)) {
 			ret = -EINVAL;
 			goto out;
@@ -515,7 +515,7 @@ static int ad7746_write_raw(struct iio_dev *indio_dev,
 
 		ret = 0;
 		break;
-	case (1 << IIO_CHAN_INFO_OFFSET_SEPARATE):
+	case IIO_CHAN_INFO_OFFSET:
 		if ((val < 0) | (val > 43008000)) { /* 21pF */
 			ret = -EINVAL;
 			goto out;
@@ -612,7 +612,7 @@ static int ad7746_read_raw(struct iio_dev *indio_dev,
 
 		ret = IIO_VAL_INT;
 		break;
-	case (1 << IIO_CHAN_INFO_CALIBSCALE_SEPARATE):
+	case IIO_CHAN_INFO_CALIBSCALE:
 		switch (chan->type) {
 		case IIO_CAPACITANCE:
 			reg = AD7746_REG_CAP_GAINH;
@@ -634,7 +634,7 @@ static int ad7746_read_raw(struct iio_dev *indio_dev,
 
 		ret = IIO_VAL_INT_PLUS_MICRO;
 		break;
-	case (1 << IIO_CHAN_INFO_CALIBBIAS_SHARED):
+	case IIO_CHAN_INFO_CALIBBIAS:
 		ret = i2c_smbus_read_word_data(chip->client,
 					       AD7746_REG_CAP_OFFH);
 		if (ret < 0)
@@ -643,13 +643,13 @@ static int ad7746_read_raw(struct iio_dev *indio_dev,
 
 		ret = IIO_VAL_INT;
 		break;
-	case (1 << IIO_CHAN_INFO_OFFSET_SEPARATE):
+	case IIO_CHAN_INFO_OFFSET:
 		*val = AD7746_CAPDAC_DACP(chip->capdac[chan->channel]
 			[chan->differential]) * 338646;
 
 		ret = IIO_VAL_INT;
 		break;
-	case (1 << IIO_CHAN_INFO_SCALE_SHARED):
+	case IIO_CHAN_INFO_SCALE:
 		switch (chan->type) {
 		case IIO_CAPACITANCE:
 			/* 8.192pf / 2^24 */
diff --git a/drivers/staging/iio/chrdev.h b/drivers/staging/iio/chrdev.h
deleted file mode 100644
index d8e736f60522..000000000000
--- a/drivers/staging/iio/chrdev.h
+++ /dev/null
@@ -1,25 +0,0 @@
-/* The industrial I/O core - character device related
- *
- * Copyright (c) 2008 Jonathan Cameron
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License version 2 as published by
- * the Free Software Foundation.
- */
-
-#ifndef _IIO_CHRDEV_H_
-#define _IIO_CHRDEV_H_
-
-/**
- * struct iio_event_data - The actual event being pushed to userspace
- * @id:		event identifier
- * @timestamp:	best estimate of time of event occurrence (often from
- *		the interrupt handler)
- */
-struct iio_event_data {
-	u64	id;
-	s64	timestamp;
-};
-
-#define IIO_GET_EVENT_FD_IOCTL _IOR('i', 0x90, int)
-#endif
diff --git a/drivers/staging/iio/dac/Kconfig b/drivers/staging/iio/dac/Kconfig
index fac8549dc8e7..13e27979df24 100644
--- a/drivers/staging/iio/dac/Kconfig
+++ b/drivers/staging/iio/dac/Kconfig
@@ -24,6 +24,29 @@ config AD5360
 	  To compile this driver as module choose M here: the module will be called
 	  ad5360.
 
+config AD5380
+	tristate "Analog Devices AD5380/81/82/83/84/90/91/92 DAC driver"
+	depends on (SPI_MASTER || I2C)
+	select REGMAP_I2C if I2C
+	select REGMAP_SPI if SPI_MASTER
+	help
+	  Say yes here to build support for Analog Devices AD5380, AD5381,
+	  AD5382, AD5383, AD5384, AD5390, AD5391, AD5392 multi-channel
+	  Digital to Analog Converters (DAC).
+
+	  To compile this driver as module choose M here: the module will be called
+	  ad5380.
+
+config AD5421
+	tristate "Analog Devices AD5421 DAC driver"
+	depends on SPI
+	help
+	  Say yes here to build support for Analog Devices AD5421 loop-powered
+	  digital-to-analog convertors (DAC).
+
+	  To compile this driver as module choose M here: the module will be called
+	  ad5421.
+
 config AD5624R_SPI
 	tristate "Analog Devices AD5624/44/64R DAC spi driver"
 	depends on SPI
@@ -37,7 +60,7 @@ config AD5446
 	help
 	  Say yes here to build support for Analog Devices AD5444, AD5446,
 	  AD5512A, AD5542A, AD5543, AD5553, AD5601, AD5611, AD5620, AD5621,
-	  AD5640, AD5660 DACs.
+	  AD5640, AD5660, AD5662 DACs.
 
 	  To compile this driver as a module, choose M here: the
 	  module will be called ad5446.
@@ -52,12 +75,22 @@ config AD5504
 	  To compile this driver as a module, choose M here: the
 	  module will be called ad5504.
 
+config AD5764
+	tristate "Analog Devices AD5764/64R/44/44R DAC driver"
+	depends on SPI_MASTER
+	help
+	  Say yes here to build support for Analog Devices AD5764, AD5764R, AD5744,
+	  AD5744R Digital to Analog Converter.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called ad5764.
+
 config AD5791
-	tristate "Analog Devices AD5760/AD5780/AD5781/AD5791 DAC SPI driver"
+	tristate "Analog Devices AD5760/AD5780/AD5781/AD5790/AD5791 DAC SPI driver"
 	depends on SPI
 	help
 	  Say yes here to build support for Analog Devices AD5760, AD5780,
-	  AD5781, AD5791 High Resolution Voltage Output Digital to
+	  AD5781, AD5790, AD5791 High Resolution Voltage Output Digital to
 	  Analog Converter.
 
 	  To compile this driver as a module, choose M here: the
diff --git a/drivers/staging/iio/dac/Makefile b/drivers/staging/iio/dac/Makefile
index 07b6f5ebdb52..8ab1d264aab7 100644
--- a/drivers/staging/iio/dac/Makefile
+++ b/drivers/staging/iio/dac/Makefile
@@ -3,10 +3,13 @@
 #
 
 obj-$(CONFIG_AD5360) += ad5360.o
+obj-$(CONFIG_AD5380) += ad5380.o
+obj-$(CONFIG_AD5421) += ad5421.o
 obj-$(CONFIG_AD5624R_SPI) += ad5624r_spi.o
 obj-$(CONFIG_AD5064) += ad5064.o
 obj-$(CONFIG_AD5504) += ad5504.o
 obj-$(CONFIG_AD5446) += ad5446.o
+obj-$(CONFIG_AD5764) += ad5764.o
 obj-$(CONFIG_AD5791) += ad5791.o
 obj-$(CONFIG_AD5686) += ad5686.o
 obj-$(CONFIG_MAX517) += max517.o
diff --git a/drivers/staging/iio/dac/ad5064.c b/drivers/staging/iio/dac/ad5064.c
index 39cfe6cb02a2..049a855039c2 100644
--- a/drivers/staging/iio/dac/ad5064.c
+++ b/drivers/staging/iio/dac/ad5064.c
@@ -91,7 +91,7 @@ enum ad5064_type {
 	.indexed = 1,						\
 	.output = 1,						\
 	.channel = (chan),					\
-	.info_mask = (1 << IIO_CHAN_INFO_SCALE_SEPARATE),	\
+	.info_mask = IIO_CHAN_INFO_SCALE_SEPARATE_BIT,	\
 	.address = AD5064_ADDR_DAC(chan),			\
 	.scan_type = IIO_ST('u', (bits), 16, 20 - (bits))	\
 }
@@ -280,14 +280,14 @@ static int ad5064_read_raw(struct iio_dev *indio_dev,
 			   long m)
 {
 	struct ad5064_state *st = iio_priv(indio_dev);
-	unsigned long scale_uv;
 	unsigned int vref;
+	int scale_uv;
 
 	switch (m) {
 	case 0:
 		*val = st->dac_cache[chan->channel];
 		return IIO_VAL_INT;
-	case (1 << IIO_CHAN_INFO_SCALE_SEPARATE):
+	case IIO_CHAN_INFO_SCALE:
 		vref = st->chip_info->shared_vref ? 0 : chan->channel;
 		scale_uv = regulator_get_voltage(st->vref_reg[vref].consumer);
 		if (scale_uv < 0)
diff --git a/drivers/staging/iio/dac/ad5360.c b/drivers/staging/iio/dac/ad5360.c
index bc0459e32d04..710b256affcc 100644
--- a/drivers/staging/iio/dac/ad5360.c
+++ b/drivers/staging/iio/dac/ad5360.c
@@ -103,10 +103,10 @@ enum ad5360_type {
 	.type = IIO_VOLTAGE,					\
 	.indexed = 1,						\
 	.output = 1,						\
-	.info_mask = (1 << IIO_CHAN_INFO_SCALE_SEPARATE) |	\
-		(1 << IIO_CHAN_INFO_OFFSET_SEPARATE) |		\
-		(1 << IIO_CHAN_INFO_CALIBSCALE_SEPARATE) |	\
-		(1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE),	\
+	.info_mask = IIO_CHAN_INFO_SCALE_SEPARATE_BIT |	\
+		IIO_CHAN_INFO_OFFSET_SEPARATE_BIT |		\
+		IIO_CHAN_INFO_CALIBSCALE_SEPARATE_BIT |	\
+		IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT,	\
 	.scan_type = IIO_ST('u', (bits), 16, 16 - (bits))	\
 }
 
@@ -326,21 +326,21 @@ static int ad5360_write_raw(struct iio_dev *indio_dev,
 		return ad5360_write(indio_dev, AD5360_CMD_WRITE_DATA,
 				 chan->address, val, chan->scan_type.shift);
 
-	case (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE):
+	case IIO_CHAN_INFO_CALIBBIAS:
 		if (val >= max_val || val < 0)
 			return -EINVAL;
 
 		return ad5360_write(indio_dev, AD5360_CMD_WRITE_OFFSET,
 				 chan->address, val, chan->scan_type.shift);
 
-	case (1 << IIO_CHAN_INFO_CALIBSCALE_SEPARATE):
+	case IIO_CHAN_INFO_CALIBSCALE:
 		if (val >= max_val || val < 0)
 			return -EINVAL;
 
 		return ad5360_write(indio_dev, AD5360_CMD_WRITE_GAIN,
 				 chan->address, val, chan->scan_type.shift);
 
-	case (1 << IIO_CHAN_INFO_OFFSET_SEPARATE):
+	case IIO_CHAN_INFO_OFFSET:
 		if (val <= -max_val || val > 0)
 			return -EINVAL;
 
@@ -371,8 +371,8 @@ static int ad5360_read_raw(struct iio_dev *indio_dev,
 			   long m)
 {
 	struct ad5360_state *st = iio_priv(indio_dev);
-	unsigned long scale_uv;
 	unsigned int ofs_index;
+	int scale_uv;
 	int ret;
 
 	switch (m) {
@@ -383,7 +383,7 @@ static int ad5360_read_raw(struct iio_dev *indio_dev,
 			return ret;
 		*val = ret >> chan->scan_type.shift;
 		return IIO_VAL_INT;
-	case (1 << IIO_CHAN_INFO_SCALE_SEPARATE):
+	case IIO_CHAN_INFO_SCALE:
 		/* vout = 4 * vref * dac_code */
 		scale_uv = ad5360_get_channel_vref(st, chan->channel) * 4 * 100;
 		if (scale_uv < 0)
@@ -393,21 +393,21 @@ static int ad5360_read_raw(struct iio_dev *indio_dev,
 		*val =  scale_uv / 100000;
 		*val2 = (scale_uv % 100000) * 10;
 		return IIO_VAL_INT_PLUS_MICRO;
-	case (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE):
+	case IIO_CHAN_INFO_CALIBBIAS:
 		ret = ad5360_read(indio_dev, AD5360_READBACK_OFFSET,
 			chan->address);
 		if (ret < 0)
 			return ret;
 		*val = ret;
 		return IIO_VAL_INT;
-	case (1 << IIO_CHAN_INFO_CALIBSCALE_SEPARATE):
+	case IIO_CHAN_INFO_CALIBSCALE:
 		ret = ad5360_read(indio_dev, AD5360_READBACK_GAIN,
 			chan->address);
 		if (ret < 0)
 			return ret;
 		*val = ret;
 		return IIO_VAL_INT;
-	case (1 << IIO_CHAN_INFO_OFFSET_SEPARATE):
+	case IIO_CHAN_INFO_OFFSET:
 		ofs_index = ad5360_get_channel_vref_index(st, chan->channel);
 		ret = ad5360_read(indio_dev, AD5360_READBACK_SF,
 			AD5360_REG_SF_OFS(ofs_index));
diff --git a/drivers/staging/iio/dac/ad5380.c b/drivers/staging/iio/dac/ad5380.c
new file mode 100644
index 000000000000..eff97ae05c4b
--- /dev/null
+++ b/drivers/staging/iio/dac/ad5380.c
@@ -0,0 +1,676 @@
+/*
+ * Analog devices AD5380, AD5381, AD5382, AD5383, AD5390, AD5391, AD5392
+ * multi-channel Digital to Analog Converters driver
+ *
+ * Copyright 2011 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2.
+ */
+
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/spi/spi.h>
+#include <linux/slab.h>
+#include <linux/sysfs.h>
+#include <linux/regmap.h>
+#include <linux/regulator/consumer.h>
+
+#include "../iio.h"
+#include "../sysfs.h"
+#include "dac.h"
+
+
+#define AD5380_REG_DATA(x)	(((x) << 2) | 3)
+#define AD5380_REG_OFFSET(x)	(((x) << 2) | 2)
+#define AD5380_REG_GAIN(x)	(((x) << 2) | 1)
+#define AD5380_REG_SF_PWR_DOWN	(8 << 2)
+#define AD5380_REG_SF_PWR_UP	(9 << 2)
+#define AD5380_REG_SF_CTRL	(12 << 2)
+
+#define AD5380_CTRL_PWR_DOWN_MODE_OFFSET	13
+#define AD5380_CTRL_INT_VREF_2V5		BIT(12)
+#define AD5380_CTRL_INT_VREF_EN			BIT(10)
+
+/**
+ * struct ad5380_chip_info - chip specific information
+ * @channel_template:	channel specification template
+ * @num_channels:	number of channels
+ * @int_vref:		internal vref in uV
+*/
+
+struct ad5380_chip_info {
+	struct iio_chan_spec	channel_template;
+	unsigned int		num_channels;
+	unsigned int		int_vref;
+};
+
+/**
+ * struct ad5380_state - driver instance specific data
+ * @regmap:		regmap instance used by the device
+ * @chip_info:		chip model specific constants, available modes etc
+ * @vref_reg:		vref supply regulator
+ * @vref:		actual reference voltage used in uA
+ * @pwr_down:		whether the chip is currently in power down mode
+ */
+
+struct ad5380_state {
+	struct regmap			*regmap;
+	const struct ad5380_chip_info	*chip_info;
+	struct regulator		*vref_reg;
+	int				vref;
+	bool				pwr_down;
+};
+
+enum ad5380_type {
+	ID_AD5380_3,
+	ID_AD5380_5,
+	ID_AD5381_3,
+	ID_AD5381_5,
+	ID_AD5382_3,
+	ID_AD5382_5,
+	ID_AD5383_3,
+	ID_AD5383_5,
+	ID_AD5390_3,
+	ID_AD5390_5,
+	ID_AD5391_3,
+	ID_AD5391_5,
+	ID_AD5392_3,
+	ID_AD5392_5,
+};
+
+#define AD5380_CHANNEL(_bits) {					\
+	.type = IIO_VOLTAGE,					\
+	.indexed = 1,						\
+	.output = 1,						\
+	.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT |		\
+		IIO_CHAN_INFO_CALIBSCALE_SEPARATE_BIT |		\
+		IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT,		\
+	.scan_type = IIO_ST('u', (_bits), 16, 14 - (_bits))	\
+}
+
+static const struct ad5380_chip_info ad5380_chip_info_tbl[] = {
+	[ID_AD5380_3] = {
+		.channel_template = AD5380_CHANNEL(14),
+		.num_channels = 40,
+		.int_vref = 1250000,
+	},
+	[ID_AD5380_5] = {
+		.channel_template = AD5380_CHANNEL(14),
+		.num_channels = 40,
+		.int_vref = 2500000,
+	},
+	[ID_AD5381_3] = {
+		.channel_template = AD5380_CHANNEL(12),
+		.num_channels = 16,
+		.int_vref = 1250000,
+	},
+	[ID_AD5381_5] = {
+		.channel_template = AD5380_CHANNEL(12),
+		.num_channels = 16,
+		.int_vref = 2500000,
+	},
+	[ID_AD5382_3] = {
+		.channel_template = AD5380_CHANNEL(14),
+		.num_channels = 32,
+		.int_vref = 1250000,
+	},
+	[ID_AD5382_5] = {
+		.channel_template = AD5380_CHANNEL(14),
+		.num_channels = 32,
+		.int_vref = 2500000,
+	},
+	[ID_AD5383_3] = {
+		.channel_template = AD5380_CHANNEL(12),
+		.num_channels = 32,
+		.int_vref = 1250000,
+	},
+	[ID_AD5383_5] = {
+		.channel_template = AD5380_CHANNEL(12),
+		.num_channels = 32,
+		.int_vref = 2500000,
+	},
+	[ID_AD5390_3] = {
+		.channel_template = AD5380_CHANNEL(14),
+		.num_channels = 16,
+		.int_vref = 1250000,
+	},
+	[ID_AD5390_5] = {
+		.channel_template = AD5380_CHANNEL(14),
+		.num_channels = 16,
+		.int_vref = 2500000,
+	},
+	[ID_AD5391_3] = {
+		.channel_template = AD5380_CHANNEL(12),
+		.num_channels = 16,
+		.int_vref = 1250000,
+	},
+	[ID_AD5391_5] = {
+		.channel_template = AD5380_CHANNEL(12),
+		.num_channels = 16,
+		.int_vref = 2500000,
+	},
+	[ID_AD5392_3] = {
+		.channel_template = AD5380_CHANNEL(14),
+		.num_channels = 8,
+		.int_vref = 1250000,
+	},
+	[ID_AD5392_5] = {
+		.channel_template = AD5380_CHANNEL(14),
+		.num_channels = 8,
+		.int_vref = 2500000,
+	},
+};
+
+static ssize_t ad5380_read_dac_powerdown(struct device *dev,
+	struct device_attribute *attr, char *buf)
+{
+	struct iio_dev *indio_dev = dev_get_drvdata(dev);
+	struct ad5380_state *st = iio_priv(indio_dev);
+
+	return sprintf(buf, "%d\n", st->pwr_down);
+}
+
+static ssize_t ad5380_write_dac_powerdown(struct device *dev,
+	struct device_attribute *attr, const char *buf, size_t len)
+{
+	struct iio_dev *indio_dev = dev_get_drvdata(dev);
+	struct ad5380_state *st = iio_priv(indio_dev);
+	bool pwr_down;
+	int ret;
+
+	ret = strtobool(buf, &pwr_down);
+	if (ret)
+		return ret;
+
+	mutex_lock(&indio_dev->mlock);
+
+	if (pwr_down)
+		ret = regmap_write(st->regmap, AD5380_REG_SF_PWR_DOWN, 0);
+	else
+		ret = regmap_write(st->regmap, AD5380_REG_SF_PWR_UP, 0);
+
+	st->pwr_down = pwr_down;
+
+	mutex_unlock(&indio_dev->mlock);
+
+	return ret ? ret : len;
+}
+
+static IIO_DEVICE_ATTR(out_voltage_powerdown,
+			S_IRUGO | S_IWUSR,
+			ad5380_read_dac_powerdown,
+			ad5380_write_dac_powerdown, 0);
+
+static const char ad5380_powerdown_modes[][15] = {
+	[0]	= "100kohm_to_gnd",
+	[1]	= "three_state",
+};
+
+static ssize_t ad5380_read_powerdown_mode(struct device *dev,
+	struct device_attribute *attr, char *buf)
+{
+	struct iio_dev *indio_dev = dev_get_drvdata(dev);
+	struct ad5380_state *st = iio_priv(indio_dev);
+	unsigned int mode;
+	int ret;
+
+	ret = regmap_read(st->regmap, AD5380_REG_SF_CTRL, &mode);
+	if (ret)
+		return ret;
+
+	mode = (mode >> AD5380_CTRL_PWR_DOWN_MODE_OFFSET) & 1;
+
+	return sprintf(buf, "%s\n", ad5380_powerdown_modes[mode]);
+}
+
+static ssize_t ad5380_write_powerdown_mode(struct device *dev,
+	struct device_attribute *attr, const char *buf, size_t len)
+{
+	struct iio_dev *indio_dev = dev_get_drvdata(dev);
+	struct ad5380_state *st = iio_priv(indio_dev);
+	unsigned int i;
+	int ret;
+
+	for (i = 0; i < ARRAY_SIZE(ad5380_powerdown_modes); ++i) {
+		if (sysfs_streq(buf, ad5380_powerdown_modes[i]))
+			break;
+	}
+
+	if (i == ARRAY_SIZE(ad5380_powerdown_modes))
+		return -EINVAL;
+
+	ret = regmap_update_bits(st->regmap, AD5380_REG_SF_CTRL,
+		1 << AD5380_CTRL_PWR_DOWN_MODE_OFFSET,
+		i << AD5380_CTRL_PWR_DOWN_MODE_OFFSET);
+
+	return ret ? ret : len;
+}
+
+static IIO_DEVICE_ATTR(out_voltage_powerdown_mode,
+			S_IRUGO | S_IWUSR,
+			ad5380_read_powerdown_mode,
+			ad5380_write_powerdown_mode, 0);
+
+static IIO_CONST_ATTR(out_voltage_powerdown_mode_available,
+			"100kohm_to_gnd three_state");
+
+static struct attribute *ad5380_attributes[] = {
+	&iio_dev_attr_out_voltage_powerdown.dev_attr.attr,
+	&iio_dev_attr_out_voltage_powerdown_mode.dev_attr.attr,
+	&iio_const_attr_out_voltage_powerdown_mode_available.dev_attr.attr,
+	NULL,
+};
+
+static const struct attribute_group ad5380_attribute_group = {
+	.attrs = ad5380_attributes,
+};
+
+static unsigned int ad5380_info_to_reg(struct iio_chan_spec const *chan,
+	long info)
+{
+	switch (info) {
+	case 0:
+		return AD5380_REG_DATA(chan->address);
+	case IIO_CHAN_INFO_CALIBBIAS:
+		return AD5380_REG_OFFSET(chan->address);
+	case IIO_CHAN_INFO_CALIBSCALE:
+		return AD5380_REG_GAIN(chan->address);
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+static int ad5380_write_raw(struct iio_dev *indio_dev,
+	struct iio_chan_spec const *chan, int val, int val2, long info)
+{
+	const unsigned int max_val = (1 << chan->scan_type.realbits);
+	struct ad5380_state *st = iio_priv(indio_dev);
+
+	switch (info) {
+	case 0:
+	case IIO_CHAN_INFO_CALIBSCALE:
+		if (val >= max_val || val < 0)
+			return -EINVAL;
+
+		return regmap_write(st->regmap,
+			ad5380_info_to_reg(chan, info),
+			val << chan->scan_type.shift);
+	case IIO_CHAN_INFO_CALIBBIAS:
+		val += (1 << chan->scan_type.realbits) / 2;
+		if (val >= max_val || val < 0)
+			return -EINVAL;
+
+		return regmap_write(st->regmap,
+			AD5380_REG_OFFSET(chan->address),
+			val << chan->scan_type.shift);
+	default:
+		break;
+	}
+	return -EINVAL;
+}
+
+static int ad5380_read_raw(struct iio_dev *indio_dev,
+	struct iio_chan_spec const *chan, int *val, int *val2, long info)
+{
+	struct ad5380_state *st = iio_priv(indio_dev);
+	unsigned long scale_uv;
+	int ret;
+
+	switch (info) {
+	case 0:
+	case IIO_CHAN_INFO_CALIBSCALE:
+		ret = regmap_read(st->regmap, ad5380_info_to_reg(chan, info),
+					val);
+		if (ret)
+			return ret;
+		*val >>= chan->scan_type.shift;
+		return IIO_VAL_INT;
+	case IIO_CHAN_INFO_CALIBBIAS:
+		ret = regmap_read(st->regmap, AD5380_REG_OFFSET(chan->address),
+					val);
+		if (ret)
+			return ret;
+		*val >>= chan->scan_type.shift;
+		val -= (1 << chan->scan_type.realbits) / 2;
+		return IIO_VAL_INT;
+	case IIO_CHAN_INFO_SCALE:
+		scale_uv = ((2 * st->vref) >> chan->scan_type.realbits) * 100;
+		*val =  scale_uv / 100000;
+		*val2 = (scale_uv % 100000) * 10;
+		return IIO_VAL_INT_PLUS_MICRO;
+	default:
+		break;
+	}
+
+	return -EINVAL;
+}
+
+static const struct iio_info ad5380_info = {
+	.read_raw = ad5380_read_raw,
+	.write_raw = ad5380_write_raw,
+	.attrs = &ad5380_attribute_group,
+	.driver_module = THIS_MODULE,
+};
+
+static int __devinit ad5380_alloc_channels(struct iio_dev *indio_dev)
+{
+	struct ad5380_state *st = iio_priv(indio_dev);
+	struct iio_chan_spec *channels;
+	unsigned int i;
+
+	channels = kcalloc(sizeof(struct iio_chan_spec),
+			st->chip_info->num_channels, GFP_KERNEL);
+
+	if (!channels)
+		return -ENOMEM;
+
+	for (i = 0; i < st->chip_info->num_channels; ++i) {
+		channels[i] = st->chip_info->channel_template;
+		channels[i].channel = i;
+		channels[i].address = i;
+	}
+
+	indio_dev->channels = channels;
+
+	return 0;
+}
+
+static int __devinit ad5380_probe(struct device *dev, struct regmap *regmap,
+	enum ad5380_type type, const char *name)
+{
+	struct iio_dev *indio_dev;
+	struct ad5380_state *st;
+	unsigned int ctrl = 0;
+	int ret;
+
+	indio_dev = iio_allocate_device(sizeof(*st));
+	if (indio_dev == NULL) {
+		dev_err(dev, "Failed to allocate iio device\n");
+		ret = -ENOMEM;
+		goto error_regmap_exit;
+	}
+
+	st = iio_priv(indio_dev);
+	dev_set_drvdata(dev, indio_dev);
+
+	st->chip_info = &ad5380_chip_info_tbl[type];
+	st->regmap = regmap;
+
+	indio_dev->dev.parent = dev;
+	indio_dev->name = name;
+	indio_dev->info = &ad5380_info;
+	indio_dev->modes = INDIO_DIRECT_MODE;
+	indio_dev->num_channels = st->chip_info->num_channels;
+
+	ret = ad5380_alloc_channels(indio_dev);
+	if (ret) {
+		dev_err(dev, "Failed to allocate channel spec: %d\n", ret);
+		goto error_free;
+	}
+
+	if (st->chip_info->int_vref == 2500000)
+		ctrl |= AD5380_CTRL_INT_VREF_2V5;
+
+	st->vref_reg = regulator_get(dev, "vref");
+	if (!IS_ERR(st->vref_reg)) {
+		ret = regulator_enable(st->vref_reg);
+		if (ret) {
+			dev_err(dev, "Failed to enable vref regulators: %d\n",
+				ret);
+			goto error_free_reg;
+		}
+
+		st->vref = regulator_get_voltage(st->vref_reg);
+	} else {
+		st->vref = st->chip_info->int_vref;
+		ctrl |= AD5380_CTRL_INT_VREF_EN;
+	}
+
+	ret = regmap_write(st->regmap, AD5380_REG_SF_CTRL, ctrl);
+	if (ret) {
+		dev_err(dev, "Failed to write to device: %d\n", ret);
+		goto error_disable_reg;
+	}
+
+	ret = iio_device_register(indio_dev);
+	if (ret) {
+		dev_err(dev, "Failed to register iio device: %d\n", ret);
+		goto error_disable_reg;
+	}
+
+	return 0;
+
+error_disable_reg:
+	if (!IS_ERR(st->vref_reg))
+		regulator_disable(st->vref_reg);
+error_free_reg:
+	if (!IS_ERR(st->vref_reg))
+		regulator_put(st->vref_reg);
+
+	kfree(indio_dev->channels);
+error_free:
+	iio_free_device(indio_dev);
+error_regmap_exit:
+	regmap_exit(regmap);
+
+	return ret;
+}
+
+static int __devexit ad5380_remove(struct device *dev)
+{
+	struct iio_dev *indio_dev = dev_get_drvdata(dev);
+	struct ad5380_state *st = iio_priv(indio_dev);
+
+	iio_device_unregister(indio_dev);
+
+	kfree(indio_dev->channels);
+
+	if (!IS_ERR(st->vref_reg)) {
+		regulator_disable(st->vref_reg);
+		regulator_put(st->vref_reg);
+	}
+
+	regmap_exit(st->regmap);
+	iio_free_device(indio_dev);
+
+	return 0;
+}
+
+static bool ad5380_reg_false(struct device *dev, unsigned int reg)
+{
+	return false;
+}
+
+static const struct regmap_config ad5380_regmap_config = {
+	.reg_bits = 10,
+	.val_bits = 14,
+
+	.max_register = AD5380_REG_DATA(40),
+	.cache_type = REGCACHE_RBTREE,
+
+	.volatile_reg = ad5380_reg_false,
+	.readable_reg = ad5380_reg_false,
+};
+
+#if IS_ENABLED(CONFIG_SPI_MASTER)
+
+static int __devinit ad5380_spi_probe(struct spi_device *spi)
+{
+	const struct spi_device_id *id = spi_get_device_id(spi);
+	struct regmap *regmap;
+
+	regmap = regmap_init_spi(spi, &ad5380_regmap_config);
+
+	if (IS_ERR(regmap))
+		return PTR_ERR(regmap);
+
+	return ad5380_probe(&spi->dev, regmap, id->driver_data, id->name);
+}
+
+static int __devexit ad5380_spi_remove(struct spi_device *spi)
+{
+	return ad5380_remove(&spi->dev);
+}
+
+static const struct spi_device_id ad5380_spi_ids[] = {
+	{ "ad5380-3", ID_AD5380_3 },
+	{ "ad5380-5", ID_AD5380_5 },
+	{ "ad5381-3", ID_AD5381_3 },
+	{ "ad5381-5", ID_AD5381_5 },
+	{ "ad5382-3", ID_AD5382_3 },
+	{ "ad5382-5", ID_AD5382_5 },
+	{ "ad5383-3", ID_AD5383_3 },
+	{ "ad5383-5", ID_AD5383_5 },
+	{ "ad5384-3", ID_AD5380_3 },
+	{ "ad5384-5", ID_AD5380_5 },
+	{ "ad5390-3", ID_AD5390_3 },
+	{ "ad5390-5", ID_AD5390_5 },
+	{ "ad5391-3", ID_AD5391_3 },
+	{ "ad5391-5", ID_AD5391_5 },
+	{ "ad5392-3", ID_AD5392_3 },
+	{ "ad5392-5", ID_AD5392_5 },
+	{ }
+};
+MODULE_DEVICE_TABLE(spi, ad5380_spi_ids);
+
+static struct spi_driver ad5380_spi_driver = {
+	.driver = {
+		   .name = "ad5380",
+		   .owner = THIS_MODULE,
+	},
+	.probe = ad5380_spi_probe,
+	.remove = __devexit_p(ad5380_spi_remove),
+	.id_table = ad5380_spi_ids,
+};
+
+static inline int ad5380_spi_register_driver(void)
+{
+	return spi_register_driver(&ad5380_spi_driver);
+}
+
+static inline void ad5380_spi_unregister_driver(void)
+{
+	spi_unregister_driver(&ad5380_spi_driver);
+}
+
+#else
+
+static inline int ad5380_spi_register_driver(void)
+{
+	return 0;
+}
+
+static inline void ad5380_spi_unregister_driver(void)
+{
+}
+
+#endif
+
+#if IS_ENABLED(CONFIG_I2C)
+
+static int __devinit ad5380_i2c_probe(struct i2c_client *i2c,
+	const struct i2c_device_id *id)
+{
+	struct regmap *regmap;
+
+	regmap = regmap_init_i2c(i2c, &ad5380_regmap_config);
+
+	if (IS_ERR(regmap))
+		return PTR_ERR(regmap);
+
+	return ad5380_probe(&i2c->dev, regmap, id->driver_data, id->name);
+}
+
+static int __devexit ad5380_i2c_remove(struct i2c_client *i2c)
+{
+	return ad5380_remove(&i2c->dev);
+}
+
+static const struct i2c_device_id ad5380_i2c_ids[] = {
+	{ "ad5380-3", ID_AD5380_3 },
+	{ "ad5380-5", ID_AD5380_5 },
+	{ "ad5381-3", ID_AD5381_3 },
+	{ "ad5381-5", ID_AD5381_5 },
+	{ "ad5382-3", ID_AD5382_3 },
+	{ "ad5382-5", ID_AD5382_5 },
+	{ "ad5383-3", ID_AD5383_3 },
+	{ "ad5383-5", ID_AD5383_5 },
+	{ "ad5384-3", ID_AD5380_3 },
+	{ "ad5384-5", ID_AD5380_5 },
+	{ "ad5390-3", ID_AD5390_3 },
+	{ "ad5390-5", ID_AD5390_5 },
+	{ "ad5391-3", ID_AD5391_3 },
+	{ "ad5391-5", ID_AD5391_5 },
+	{ "ad5392-3", ID_AD5392_3 },
+	{ "ad5392-5", ID_AD5392_5 },
+	{ }
+};
+MODULE_DEVICE_TABLE(i2c, ad5380_i2c_ids);
+
+static struct i2c_driver ad5380_i2c_driver = {
+	.driver = {
+		   .name = "ad5380",
+		   .owner = THIS_MODULE,
+	},
+	.probe = ad5380_i2c_probe,
+	.remove = __devexit_p(ad5380_i2c_remove),
+	.id_table = ad5380_i2c_ids,
+};
+
+static inline int ad5380_i2c_register_driver(void)
+{
+	return i2c_add_driver(&ad5380_i2c_driver);
+}
+
+static inline void ad5380_i2c_unregister_driver(void)
+{
+	i2c_del_driver(&ad5380_i2c_driver);
+}
+
+#else
+
+static inline int ad5380_i2c_register_driver(void)
+{
+	return 0;
+}
+
+static inline void ad5380_i2c_unregister_driver(void)
+{
+}
+
+#endif
+
+static int __init ad5380_spi_init(void)
+{
+	int ret;
+
+	ret = ad5380_spi_register_driver();
+	if (ret)
+		return ret;
+
+	ret = ad5380_i2c_register_driver();
+	if (ret) {
+		ad5380_spi_unregister_driver();
+		return ret;
+	}
+
+	return 0;
+}
+module_init(ad5380_spi_init);
+
+static void __exit ad5380_spi_exit(void)
+{
+	ad5380_i2c_unregister_driver();
+	ad5380_spi_unregister_driver();
+
+}
+module_exit(ad5380_spi_exit);
+
+MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
+MODULE_DESCRIPTION("Analog Devices AD5380/81/82/83/84/90/91/92 DAC");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/dac/ad5421.c b/drivers/staging/iio/dac/ad5421.c
new file mode 100644
index 000000000000..71ee86824763
--- /dev/null
+++ b/drivers/staging/iio/dac/ad5421.c
@@ -0,0 +1,555 @@
+/*
+ * AD5421 Digital to analog converters  driver
+ *
+ * Copyright 2011 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2.
+ */
+
+#include <linux/device.h>
+#include <linux/delay.h>
+#include <linux/err.h>
+#include <linux/module.h>
+#include <linux/interrupt.h>
+#include <linux/kernel.h>
+#include <linux/spi/spi.h>
+#include <linux/slab.h>
+#include <linux/sysfs.h>
+
+#include "../iio.h"
+#include "../sysfs.h"
+#include "../events.h"
+#include "dac.h"
+#include "ad5421.h"
+
+
+#define AD5421_REG_DAC_DATA		0x1
+#define AD5421_REG_CTRL			0x2
+#define AD5421_REG_OFFSET		0x3
+#define AD5421_REG_GAIN			0x4
+/* load dac and fault shared the same register number. Writing to it will cause
+ * a dac load command, reading from it will return the fault status register */
+#define AD5421_REG_LOAD_DAC		0x5
+#define AD5421_REG_FAULT		0x5
+#define AD5421_REG_FORCE_ALARM_CURRENT	0x6
+#define AD5421_REG_RESET		0x7
+#define AD5421_REG_START_CONVERSION	0x8
+#define AD5421_REG_NOOP			0x9
+
+#define AD5421_CTRL_WATCHDOG_DISABLE	BIT(12)
+#define AD5421_CTRL_AUTO_FAULT_READBACK	BIT(11)
+#define AD5421_CTRL_MIN_CURRENT		BIT(9)
+#define AD5421_CTRL_ADC_SOURCE_TEMP	BIT(8)
+#define AD5421_CTRL_ADC_ENABLE		BIT(7)
+#define AD5421_CTRL_PWR_DOWN_INT_VREF	BIT(6)
+
+#define AD5421_FAULT_SPI			BIT(15)
+#define AD5421_FAULT_PEC			BIT(14)
+#define AD5421_FAULT_OVER_CURRENT		BIT(13)
+#define AD5421_FAULT_UNDER_CURRENT		BIT(12)
+#define AD5421_FAULT_TEMP_OVER_140		BIT(11)
+#define AD5421_FAULT_TEMP_OVER_100		BIT(10)
+#define AD5421_FAULT_UNDER_VOLTAGE_6V		BIT(9)
+#define AD5421_FAULT_UNDER_VOLTAGE_12V		BIT(8)
+
+/* These bits will cause the fault pin to go high */
+#define AD5421_FAULT_TRIGGER_IRQ \
+	(AD5421_FAULT_SPI | AD5421_FAULT_PEC | AD5421_FAULT_OVER_CURRENT | \
+	AD5421_FAULT_UNDER_CURRENT | AD5421_FAULT_TEMP_OVER_140)
+
+/**
+ * struct ad5421_state - driver instance specific data
+ * @spi:		spi_device
+ * @ctrl:		control register cache
+ * @current_range:	current range which the device is configured for
+ * @data:		spi transfer buffers
+ * @fault_mask:		software masking of events
+ */
+struct ad5421_state {
+	struct spi_device		*spi;
+	unsigned int			ctrl;
+	enum ad5421_current_range	current_range;
+	unsigned int			fault_mask;
+
+	/*
+	 * DMA (thus cache coherency maintenance) requires the
+	 * transfer buffers to live in their own cache lines.
+	 */
+	union {
+		u32 d32;
+		u8 d8[4];
+	} data[2] ____cacheline_aligned;
+};
+
+static const struct iio_chan_spec ad5421_channels[] = {
+	{
+		.type = IIO_CURRENT,
+		.indexed = 1,
+		.output = 1,
+		.channel = 0,
+		.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT |
+			IIO_CHAN_INFO_OFFSET_SHARED_BIT |
+			IIO_CHAN_INFO_CALIBSCALE_SEPARATE_BIT |
+			IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT,
+		.scan_type = IIO_ST('u', 16, 16, 0),
+		.event_mask = IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING) |
+			IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_FALLING),
+	},
+	{
+		.type = IIO_TEMP,
+		.channel = -1,
+		.event_mask = IIO_EV_BIT(IIO_EV_TYPE_THRESH, IIO_EV_DIR_RISING),
+	},
+};
+
+static int ad5421_write_unlocked(struct iio_dev *indio_dev,
+	unsigned int reg, unsigned int val)
+{
+	struct ad5421_state *st = iio_priv(indio_dev);
+
+	st->data[0].d32 = cpu_to_be32((reg << 16) | val);
+
+	return spi_write(st->spi, &st->data[0].d8[1], 3);
+}
+
+static int ad5421_write(struct iio_dev *indio_dev, unsigned int reg,
+	unsigned int val)
+{
+	int ret;
+
+	mutex_lock(&indio_dev->mlock);
+	ret = ad5421_write_unlocked(indio_dev, reg, val);
+	mutex_unlock(&indio_dev->mlock);
+
+	return ret;
+}
+
+static int ad5421_read(struct iio_dev *indio_dev, unsigned int reg)
+{
+	struct ad5421_state *st = iio_priv(indio_dev);
+	struct spi_message m;
+	int ret;
+	struct spi_transfer t[] = {
+		{
+			.tx_buf = &st->data[0].d8[1],
+			.len = 3,
+			.cs_change = 1,
+		}, {
+			.rx_buf = &st->data[1].d8[1],
+			.len = 3,
+		},
+	};
+
+	spi_message_init(&m);
+	spi_message_add_tail(&t[0], &m);
+	spi_message_add_tail(&t[1], &m);
+
+	mutex_lock(&indio_dev->mlock);
+
+	st->data[0].d32 = cpu_to_be32((1 << 23) | (reg << 16));
+
+	ret = spi_sync(st->spi, &m);
+	if (ret >= 0)
+		ret = be32_to_cpu(st->data[1].d32) & 0xffff;
+
+	mutex_unlock(&indio_dev->mlock);
+
+	return ret;
+}
+
+static int ad5421_update_ctrl(struct iio_dev *indio_dev, unsigned int set,
+	unsigned int clr)
+{
+	struct ad5421_state *st = iio_priv(indio_dev);
+	unsigned int ret;
+
+	mutex_lock(&indio_dev->mlock);
+
+	st->ctrl &= ~clr;
+	st->ctrl |= set;
+
+	ret = ad5421_write_unlocked(indio_dev, AD5421_REG_CTRL, st->ctrl);
+
+	mutex_unlock(&indio_dev->mlock);
+
+	return ret;
+}
+
+static irqreturn_t ad5421_fault_handler(int irq, void *data)
+{
+	struct iio_dev *indio_dev = data;
+	struct ad5421_state *st = iio_priv(indio_dev);
+	unsigned int fault;
+	unsigned int old_fault = 0;
+	unsigned int events;
+
+	fault = ad5421_read(indio_dev, AD5421_REG_FAULT);
+	if (!fault)
+		return IRQ_NONE;
+
+	/* If we had a fault, this might mean that the DAC has lost its state
+	 * and has been reset. Make sure that the control register actually
+	 * contains what we expect it to contain. Otherwise the watchdog might
+	 * be enabled and we get watchdog timeout faults, which will render the
+	 * DAC unusable. */
+	ad5421_update_ctrl(indio_dev, 0, 0);
+
+
+	/* The fault pin stays high as long as a fault condition is present and
+	 * it is not possible to mask fault conditions. For certain fault
+	 * conditions for example like over-temperature it takes some time
+	 * until the fault condition disappears. If we would exit the interrupt
+	 * handler immediately after handling the event it would be entered
+	 * again instantly. Thus we fall back to polling in case we detect that
+	 * a interrupt condition is still present.
+	 */
+	do {
+		/* 0xffff is a invalid value for the register and will only be
+		 * read if there has been a communication error */
+		if (fault == 0xffff)
+			fault = 0;
+
+		/* we are only interested in new events */
+		events = (old_fault ^ fault) & fault;
+		events &= st->fault_mask;
+
+		if (events & AD5421_FAULT_OVER_CURRENT) {
+			iio_push_event(indio_dev,
+				IIO_UNMOD_EVENT_CODE(IIO_CURRENT,
+					0,
+					IIO_EV_TYPE_THRESH,
+					IIO_EV_DIR_RISING),
+			iio_get_time_ns());
+		}
+
+		if (events & AD5421_FAULT_UNDER_CURRENT) {
+			iio_push_event(indio_dev,
+				IIO_UNMOD_EVENT_CODE(IIO_CURRENT,
+					0,
+					IIO_EV_TYPE_THRESH,
+					IIO_EV_DIR_FALLING),
+				iio_get_time_ns());
+		}
+
+		if (events & AD5421_FAULT_TEMP_OVER_140) {
+			iio_push_event(indio_dev,
+				IIO_UNMOD_EVENT_CODE(IIO_TEMP,
+					0,
+					IIO_EV_TYPE_MAG,
+					IIO_EV_DIR_RISING),
+				iio_get_time_ns());
+		}
+
+		old_fault = fault;
+		fault = ad5421_read(indio_dev, AD5421_REG_FAULT);
+
+		/* still active? go to sleep for some time */
+		if (fault & AD5421_FAULT_TRIGGER_IRQ)
+			msleep(1000);
+
+	} while (fault & AD5421_FAULT_TRIGGER_IRQ);
+
+
+	return IRQ_HANDLED;
+}
+
+static void ad5421_get_current_min_max(struct ad5421_state *st,
+	unsigned int *min, unsigned int *max)
+{
+	/* The current range is configured using external pins, which are
+	 * usually hard-wired and not run-time switchable. */
+	switch (st->current_range) {
+	case AD5421_CURRENT_RANGE_4mA_20mA:
+		*min = 4000;
+		*max = 20000;
+		break;
+	case AD5421_CURRENT_RANGE_3mA8_21mA:
+		*min = 3800;
+		*max = 21000;
+		break;
+	case AD5421_CURRENT_RANGE_3mA2_24mA:
+		*min = 3200;
+		*max = 24000;
+		break;
+	default:
+		*min = 0;
+		*max = 1;
+		break;
+	}
+}
+
+static inline unsigned int ad5421_get_offset(struct ad5421_state *st)
+{
+	unsigned int min, max;
+
+	ad5421_get_current_min_max(st, &min, &max);
+	return (min * (1 << 16)) / (max - min);
+}
+
+static inline unsigned int ad5421_get_scale(struct ad5421_state *st)
+{
+	unsigned int min, max;
+
+	ad5421_get_current_min_max(st, &min, &max);
+	return ((max - min) * 1000) / (1 << 16);
+}
+
+static int ad5421_read_raw(struct iio_dev *indio_dev,
+	struct iio_chan_spec const *chan, int *val, int *val2, long m)
+{
+	struct ad5421_state *st = iio_priv(indio_dev);
+	int ret;
+
+	if (chan->type != IIO_CURRENT)
+		return -EINVAL;
+
+	switch (m) {
+	case 0:
+		ret = ad5421_read(indio_dev, AD5421_REG_DAC_DATA);
+		if (ret < 0)
+			return ret;
+		*val = ret;
+		return IIO_VAL_INT;
+	case IIO_CHAN_INFO_SCALE:
+		*val = 0;
+		*val2 = ad5421_get_scale(st);
+		return IIO_VAL_INT_PLUS_MICRO;
+	case IIO_CHAN_INFO_OFFSET:
+		*val = ad5421_get_offset(st);
+		return IIO_VAL_INT;
+	case IIO_CHAN_INFO_CALIBBIAS:
+		ret = ad5421_read(indio_dev, AD5421_REG_OFFSET);
+		if (ret < 0)
+			return ret;
+		*val = ret - 32768;
+		return IIO_VAL_INT;
+	case IIO_CHAN_INFO_CALIBSCALE:
+		ret = ad5421_read(indio_dev, AD5421_REG_GAIN);
+		if (ret < 0)
+			return ret;
+		*val = ret;
+		return IIO_VAL_INT;
+	}
+
+	return -EINVAL;
+}
+
+static int ad5421_write_raw(struct iio_dev *indio_dev,
+	struct iio_chan_spec const *chan, int val, int val2, long mask)
+{
+	const unsigned int max_val = 1 << 16;
+
+	switch (mask) {
+	case 0:
+		if (val >= max_val || val < 0)
+			return -EINVAL;
+
+		return ad5421_write(indio_dev, AD5421_REG_DAC_DATA, val);
+	case IIO_CHAN_INFO_CALIBBIAS:
+		val += 32768;
+		if (val >= max_val || val < 0)
+			return -EINVAL;
+
+		return ad5421_write(indio_dev, AD5421_REG_OFFSET, val);
+	case IIO_CHAN_INFO_CALIBSCALE:
+		if (val >= max_val || val < 0)
+			return -EINVAL;
+
+		return ad5421_write(indio_dev, AD5421_REG_GAIN, val);
+	default:
+		break;
+	}
+
+	return -EINVAL;
+}
+
+static int ad5421_write_event_config(struct iio_dev *indio_dev,
+	u64 event_code, int state)
+{
+	struct ad5421_state *st = iio_priv(indio_dev);
+	unsigned int mask;
+
+	switch (IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(event_code)) {
+	case IIO_CURRENT:
+		if (IIO_EVENT_CODE_EXTRACT_DIR(event_code) ==
+			IIO_EV_DIR_RISING)
+			mask = AD5421_FAULT_OVER_CURRENT;
+		else
+			mask = AD5421_FAULT_UNDER_CURRENT;
+		break;
+	case IIO_TEMP:
+		mask = AD5421_FAULT_TEMP_OVER_140;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	mutex_lock(&indio_dev->mlock);
+	if (state)
+		st->fault_mask |= mask;
+	else
+		st->fault_mask &= ~mask;
+	mutex_unlock(&indio_dev->mlock);
+
+	return 0;
+}
+
+static int ad5421_read_event_config(struct iio_dev *indio_dev,
+	u64 event_code)
+{
+	struct ad5421_state *st = iio_priv(indio_dev);
+	unsigned int mask;
+
+	switch (IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(event_code)) {
+	case IIO_CURRENT:
+		if (IIO_EVENT_CODE_EXTRACT_DIR(event_code) ==
+			IIO_EV_DIR_RISING)
+			mask = AD5421_FAULT_OVER_CURRENT;
+		else
+			mask = AD5421_FAULT_UNDER_CURRENT;
+		break;
+	case IIO_TEMP:
+		mask = AD5421_FAULT_TEMP_OVER_140;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return (bool)(st->fault_mask & mask);
+}
+
+static int ad5421_read_event_value(struct iio_dev *indio_dev, u64 event_code,
+	int *val)
+{
+	int ret;
+
+	switch (IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(event_code)) {
+	case IIO_CURRENT:
+		ret = ad5421_read(indio_dev, AD5421_REG_DAC_DATA);
+		if (ret < 0)
+			return ret;
+		*val = ret;
+		break;
+	case IIO_TEMP:
+		*val = 140000;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static const struct iio_info ad5421_info = {
+	.read_raw =		ad5421_read_raw,
+	.write_raw =		ad5421_write_raw,
+	.read_event_config =	ad5421_read_event_config,
+	.write_event_config =	ad5421_write_event_config,
+	.read_event_value =	ad5421_read_event_value,
+	.driver_module =	THIS_MODULE,
+};
+
+static int __devinit ad5421_probe(struct spi_device *spi)
+{
+	struct ad5421_platform_data *pdata = dev_get_platdata(&spi->dev);
+	struct iio_dev *indio_dev;
+	struct ad5421_state *st;
+	int ret;
+
+	indio_dev = iio_allocate_device(sizeof(*st));
+	if (indio_dev == NULL) {
+		dev_err(&spi->dev, "Failed to allocate iio device\n");
+		return  -ENOMEM;
+	}
+
+	st = iio_priv(indio_dev);
+	spi_set_drvdata(spi, indio_dev);
+
+	st->spi = spi;
+
+	indio_dev->dev.parent = &spi->dev;
+	indio_dev->name = "ad5421";
+	indio_dev->info = &ad5421_info;
+	indio_dev->modes = INDIO_DIRECT_MODE;
+	indio_dev->channels = ad5421_channels;
+	indio_dev->num_channels = ARRAY_SIZE(ad5421_channels);
+
+	st->ctrl = AD5421_CTRL_WATCHDOG_DISABLE |
+			AD5421_CTRL_AUTO_FAULT_READBACK;
+
+	if (pdata) {
+		st->current_range = pdata->current_range;
+		if (pdata->external_vref)
+			st->ctrl |= AD5421_CTRL_PWR_DOWN_INT_VREF;
+	} else {
+		st->current_range = AD5421_CURRENT_RANGE_4mA_20mA;
+	}
+
+	/* write initial ctrl register value */
+	ad5421_update_ctrl(indio_dev, 0, 0);
+
+	if (spi->irq) {
+		ret = request_threaded_irq(spi->irq,
+					   NULL,
+					   ad5421_fault_handler,
+					   IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
+					   "ad5421 fault",
+					   indio_dev);
+		if (ret)
+			goto error_free;
+	}
+
+	ret = iio_device_register(indio_dev);
+	if (ret) {
+		dev_err(&spi->dev, "Failed to register iio device: %d\n", ret);
+		goto error_free_irq;
+	}
+
+	return 0;
+
+error_free_irq:
+	if (spi->irq)
+		free_irq(spi->irq, indio_dev);
+error_free:
+	iio_free_device(indio_dev);
+
+	return ret;
+}
+
+static int __devexit ad5421_remove(struct spi_device *spi)
+{
+	struct iio_dev *indio_dev = spi_get_drvdata(spi);
+
+	iio_device_unregister(indio_dev);
+	if (spi->irq)
+		free_irq(spi->irq, indio_dev);
+	iio_free_device(indio_dev);
+
+	return 0;
+}
+
+static struct spi_driver ad5421_driver = {
+	.driver = {
+		   .name = "ad5421",
+		   .owner = THIS_MODULE,
+	},
+	.probe = ad5421_probe,
+	.remove = __devexit_p(ad5421_remove),
+};
+
+static __init int ad5421_init(void)
+{
+	return spi_register_driver(&ad5421_driver);
+}
+module_init(ad5421_init);
+
+static __exit void ad5421_exit(void)
+{
+	spi_unregister_driver(&ad5421_driver);
+}
+module_exit(ad5421_exit);
+
+MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
+MODULE_DESCRIPTION("Analog Devices AD5421 DAC");
+MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("spi:ad5421");
diff --git a/drivers/staging/iio/dac/ad5421.h b/drivers/staging/iio/dac/ad5421.h
new file mode 100644
index 000000000000..cd2bb84ff1b0
--- /dev/null
+++ b/drivers/staging/iio/dac/ad5421.h
@@ -0,0 +1,32 @@
+#ifndef __IIO_DAC_AD5421_H__
+#define __IIO_DAC_AD5421_H__
+
+/*
+ * TODO: This file needs to go into include/linux/iio
+ */
+
+/**
+ * enum ad5421_current_range - Current range the AD5421 is configured for.
+ * @AD5421_CURRENT_RANGE_4mA_20mA: 4 mA to 20 mA (RANGE1,0 pins = 00)
+ * @AD5421_CURRENT_RANGE_3mA8_21mA: 3.8 mA to 21 mA (RANGE1,0 pins = x1)
+ * @AD5421_CURRENT_RANGE_3mA2_24mA: 3.2 mA to 24 mA (RANGE1,0 pins = 10)
+ */
+
+enum ad5421_current_range {
+	AD5421_CURRENT_RANGE_4mA_20mA,
+	AD5421_CURRENT_RANGE_3mA8_21mA,
+	AD5421_CURRENT_RANGE_3mA2_24mA,
+};
+
+/**
+ * struct ad5421_platform_data - AD5421 DAC driver platform data
+ * @external_vref: whether an external reference voltage is used or not
+ * @current_range: Current range the AD5421 is configured for
+ */
+
+struct ad5421_platform_data {
+	bool external_vref;
+	enum ad5421_current_range current_range;
+};
+
+#endif
diff --git a/drivers/staging/iio/dac/ad5446.c b/drivers/staging/iio/dac/ad5446.c
index ec701e939b6b..693e7482524c 100644
--- a/drivers/staging/iio/dac/ad5446.c
+++ b/drivers/staging/iio/dac/ad5446.c
@@ -26,19 +26,17 @@
 
 static void ad5446_store_sample(struct ad5446_state *st, unsigned val)
 {
-	st->data.d16 = cpu_to_be16(AD5446_LOAD |
-					(val << st->chip_info->left_shift));
+	st->data.d16 = cpu_to_be16(AD5446_LOAD | val);
 }
 
 static void ad5542_store_sample(struct ad5446_state *st, unsigned val)
 {
-	st->data.d16 = cpu_to_be16(val << st->chip_info->left_shift);
+	st->data.d16 = cpu_to_be16(val);
 }
 
 static void ad5620_store_sample(struct ad5446_state *st, unsigned val)
 {
-	st->data.d16 = cpu_to_be16(AD5620_LOAD |
-					(val << st->chip_info->left_shift));
+	st->data.d16 = cpu_to_be16(AD5620_LOAD | val);
 }
 
 static void ad5660_store_sample(struct ad5446_state *st, unsigned val)
@@ -63,50 +61,6 @@ static void ad5660_store_pwr_down(struct ad5446_state *st, unsigned mode)
 	st->data.d24[2] = val & 0xFF;
 }
 
-static ssize_t ad5446_write(struct device *dev,
-		struct device_attribute *attr,
-		const char *buf,
-		size_t len)
-{
-	struct iio_dev *indio_dev = dev_get_drvdata(dev);
-	struct ad5446_state *st = iio_priv(indio_dev);
-	int ret;
-	long val;
-
-	ret = strict_strtol(buf, 10, &val);
-	if (ret)
-		goto error_ret;
-
-	if (val > RES_MASK(st->chip_info->bits)) {
-		ret = -EINVAL;
-		goto error_ret;
-	}
-
-	mutex_lock(&indio_dev->mlock);
-	st->cached_val = val;
-	st->chip_info->store_sample(st, val);
-	ret = spi_sync(st->spi, &st->msg);
-	mutex_unlock(&indio_dev->mlock);
-
-error_ret:
-	return ret ? ret : len;
-}
-
-static IIO_DEV_ATTR_OUT_RAW(0, ad5446_write, 0);
-
-static ssize_t ad5446_show_scale(struct device *dev,
-				struct device_attribute *attr,
-				char *buf)
-{
-	struct iio_dev *indio_dev = dev_get_drvdata(dev);
-	struct ad5446_state *st = iio_priv(indio_dev);
-	/* Corresponds to Vref / 2^(bits) */
-	unsigned int scale_uv = (st->vref_mv * 1000) >> st->chip_info->bits;
-
-	return sprintf(buf, "%d.%03d\n", scale_uv / 1000, scale_uv % 1000);
-}
-static IIO_DEVICE_ATTR(out_voltage_scale, S_IRUGO, ad5446_show_scale, NULL, 0);
-
 static ssize_t ad5446_write_powerdown_mode(struct device *dev,
 				       struct device_attribute *attr,
 				       const char *buf, size_t len)
@@ -189,8 +143,6 @@ static IIO_DEVICE_ATTR(out_voltage0_powerdown, S_IRUGO | S_IWUSR,
 			ad5446_write_dac_powerdown, 0);
 
 static struct attribute *ad5446_attributes[] = {
-	&iio_dev_attr_out_voltage0_raw.dev_attr.attr,
-	&iio_dev_attr_out_voltage_scale.dev_attr.attr,
 	&iio_dev_attr_out_voltage0_powerdown.dev_attr.attr,
 	&iio_dev_attr_out_voltage_powerdown_mode.dev_attr.attr,
 	&iio_const_attr_out_voltage_powerdown_mode_available.dev_attr.attr,
@@ -223,121 +175,148 @@ static const struct attribute_group ad5446_attribute_group = {
 	.is_visible = ad5446_attr_is_visible,
 };
 
+#define AD5446_CHANNEL(bits, storage, shift) { \
+	.type = IIO_VOLTAGE, \
+	.indexed = 1, \
+	.output = 1, \
+	.channel = 0, \
+	.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT, \
+	.scan_type = IIO_ST('u', (bits), (storage), (shift)) \
+}
+
 static const struct ad5446_chip_info ad5446_chip_info_tbl[] = {
 	[ID_AD5444] = {
-		.bits = 12,
-		.storagebits = 16,
-		.left_shift = 2,
+		.channel = AD5446_CHANNEL(12, 16, 2),
 		.store_sample = ad5446_store_sample,
 	},
 	[ID_AD5446] = {
-		.bits = 14,
-		.storagebits = 16,
-		.left_shift = 0,
+		.channel = AD5446_CHANNEL(14, 16, 0),
 		.store_sample = ad5446_store_sample,
 	},
 	[ID_AD5541A] = {
-		.bits = 16,
-		.storagebits = 16,
-		.left_shift = 0,
+		.channel = AD5446_CHANNEL(16, 16, 0),
 		.store_sample = ad5542_store_sample,
 	},
 	[ID_AD5542A] = {
-		.bits = 16,
-		.storagebits = 16,
-		.left_shift = 0,
+		.channel = AD5446_CHANNEL(16, 16, 0),
 		.store_sample = ad5542_store_sample,
 	},
 	[ID_AD5543] = {
-		.bits = 16,
-		.storagebits = 16,
-		.left_shift = 0,
+		.channel = AD5446_CHANNEL(16, 16, 0),
 		.store_sample = ad5542_store_sample,
 	},
 	[ID_AD5512A] = {
-		.bits = 12,
-		.storagebits = 16,
-		.left_shift = 4,
+		.channel = AD5446_CHANNEL(12, 16, 4),
 		.store_sample = ad5542_store_sample,
 	},
 	[ID_AD5553] = {
-		.bits = 14,
-		.storagebits = 16,
-		.left_shift = 0,
+		.channel = AD5446_CHANNEL(14, 16, 0),
 		.store_sample = ad5542_store_sample,
 	},
 	[ID_AD5601] = {
-		.bits = 8,
-		.storagebits = 16,
-		.left_shift = 6,
+		.channel = AD5446_CHANNEL(8, 16, 6),
 		.store_sample = ad5542_store_sample,
 		.store_pwr_down = ad5620_store_pwr_down,
 	},
 	[ID_AD5611] = {
-		.bits = 10,
-		.storagebits = 16,
-		.left_shift = 4,
+		.channel = AD5446_CHANNEL(10, 16, 4),
 		.store_sample = ad5542_store_sample,
 		.store_pwr_down = ad5620_store_pwr_down,
 	},
 	[ID_AD5621] = {
-		.bits = 12,
-		.storagebits = 16,
-		.left_shift = 2,
+		.channel = AD5446_CHANNEL(12, 16, 2),
 		.store_sample = ad5542_store_sample,
 		.store_pwr_down = ad5620_store_pwr_down,
 	},
 	[ID_AD5620_2500] = {
-		.bits = 12,
-		.storagebits = 16,
-		.left_shift = 2,
+		.channel = AD5446_CHANNEL(12, 16, 2),
 		.int_vref_mv = 2500,
 		.store_sample = ad5620_store_sample,
 		.store_pwr_down = ad5620_store_pwr_down,
 	},
 	[ID_AD5620_1250] = {
-		.bits = 12,
-		.storagebits = 16,
-		.left_shift = 2,
+		.channel = AD5446_CHANNEL(12, 16, 2),
 		.int_vref_mv = 1250,
 		.store_sample = ad5620_store_sample,
 		.store_pwr_down = ad5620_store_pwr_down,
 	},
 	[ID_AD5640_2500] = {
-		.bits = 14,
-		.storagebits = 16,
-		.left_shift = 0,
+		.channel = AD5446_CHANNEL(14, 16, 0),
 		.int_vref_mv = 2500,
 		.store_sample = ad5620_store_sample,
 		.store_pwr_down = ad5620_store_pwr_down,
 	},
 	[ID_AD5640_1250] = {
-		.bits = 14,
-		.storagebits = 16,
-		.left_shift = 0,
+		.channel = AD5446_CHANNEL(14, 16, 0),
 		.int_vref_mv = 1250,
 		.store_sample = ad5620_store_sample,
 		.store_pwr_down = ad5620_store_pwr_down,
 	},
 	[ID_AD5660_2500] = {
-		.bits = 16,
-		.storagebits = 24,
-		.left_shift = 0,
+		.channel = AD5446_CHANNEL(16, 16, 0),
 		.int_vref_mv = 2500,
 		.store_sample = ad5660_store_sample,
 		.store_pwr_down = ad5660_store_pwr_down,
 	},
 	[ID_AD5660_1250] = {
-		.bits = 16,
-		.storagebits = 24,
-		.left_shift = 0,
+		.channel = AD5446_CHANNEL(16, 16, 0),
 		.int_vref_mv = 1250,
 		.store_sample = ad5660_store_sample,
 		.store_pwr_down = ad5660_store_pwr_down,
 	},
 };
 
+static int ad5446_read_raw(struct iio_dev *indio_dev,
+			   struct iio_chan_spec const *chan,
+			   int *val,
+			   int *val2,
+			   long m)
+{
+	struct ad5446_state *st = iio_priv(indio_dev);
+	unsigned long scale_uv;
+
+	switch (m) {
+	case IIO_CHAN_INFO_SCALE:
+		scale_uv = (st->vref_mv * 1000) >> chan->scan_type.realbits;
+		*val =  scale_uv / 1000;
+		*val2 = (scale_uv % 1000) * 1000;
+		return IIO_VAL_INT_PLUS_MICRO;
+
+	}
+	return -EINVAL;
+}
+
+static int ad5446_write_raw(struct iio_dev *indio_dev,
+			       struct iio_chan_spec const *chan,
+			       int val,
+			       int val2,
+			       long mask)
+{
+	struct ad5446_state *st = iio_priv(indio_dev);
+	int ret;
+
+	switch (mask) {
+	case 0:
+		if (val >= (1 << chan->scan_type.realbits) || val < 0)
+			return -EINVAL;
+
+		val <<= chan->scan_type.shift;
+		mutex_lock(&indio_dev->mlock);
+		st->cached_val = val;
+		st->chip_info->store_sample(st, val);
+		ret = spi_sync(st->spi, &st->msg);
+		mutex_unlock(&indio_dev->mlock);
+		break;
+	default:
+		ret = -EINVAL;
+	}
+
+	return ret;
+}
+
 static const struct iio_info ad5446_info = {
+	.read_raw = ad5446_read_raw,
+	.write_raw = ad5446_write_raw,
 	.attrs = &ad5446_attribute_group,
 	.driver_module = THIS_MODULE,
 };
@@ -376,11 +355,13 @@ static int __devinit ad5446_probe(struct spi_device *spi)
 	indio_dev->name = spi_get_device_id(spi)->name;
 	indio_dev->info = &ad5446_info;
 	indio_dev->modes = INDIO_DIRECT_MODE;
+	indio_dev->channels = &st->chip_info->channel;
+	indio_dev->num_channels = 1;
 
 	/* Setup default message */
 
 	st->xfer.tx_buf = &st->data;
-	st->xfer.len = st->chip_info->storagebits / 8;
+	st->xfer.len = st->chip_info->channel.scan_type.storagebits / 8;
 
 	spi_message_init(&st->msg);
 	spi_message_add_tail(&st->xfer, &st->msg);
@@ -454,11 +435,11 @@ static const struct spi_device_id ad5446_id[] = {
 	{"ad5660-1250", ID_AD5660_1250},
 	{}
 };
+MODULE_DEVICE_TABLE(spi, ad5446_id);
 
 static struct spi_driver ad5446_driver = {
 	.driver = {
 		.name	= "ad5446",
-		.bus	= &spi_bus_type,
 		.owner	= THIS_MODULE,
 	},
 	.probe		= ad5446_probe,
@@ -470,4 +451,3 @@ module_spi_driver(ad5446_driver);
 MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
 MODULE_DESCRIPTION("Analog Devices AD5444/AD5446 DAC");
 MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("spi:ad5446");
diff --git a/drivers/staging/iio/dac/ad5446.h b/drivers/staging/iio/dac/ad5446.h
index 7118d653ac3e..4ea3476fb065 100644
--- a/drivers/staging/iio/dac/ad5446.h
+++ b/drivers/staging/iio/dac/ad5446.h
@@ -25,8 +25,6 @@
 #define AD5660_PWRDWN_100k	(0x2 << 16) /* Power-down: 100kOhm to GND */
 #define AD5660_PWRDWN_TRISTATE	(0x3 << 16) /* Power-down: Three-state */
 
-#define RES_MASK(bits)	((1 << (bits)) - 1)
-
 #define MODE_PWRDWN_1k		0x1
 #define MODE_PWRDWN_100k	0x2
 #define MODE_PWRDWN_TRISTATE	0x3
@@ -62,18 +60,14 @@ struct ad5446_state {
 
 /**
  * struct ad5446_chip_info - chip specific information
- * @bits:		accuracy of the DAC in bits
- * @storagebits:	number of bits written to the DAC
- * @left_shift:		number of bits the datum must be shifted
+ * @channel:		channel spec for the DAC
  * @int_vref_mv:	AD5620/40/60: the internal reference voltage
  * @store_sample:	chip specific helper function to store the datum
  * @store_sample:	chip specific helper function to store the powerpown cmd
  */
 
 struct ad5446_chip_info {
-	u8			bits;
-	u8			storagebits;
-	u8			left_shift;
+	struct iio_chan_spec	channel;
 	u16			int_vref_mv;
 	void (*store_sample)	(struct ad5446_state *st, unsigned val);
 	void (*store_pwr_down)	(struct ad5446_state *st, unsigned mode);
diff --git a/drivers/staging/iio/dac/ad5504.c b/drivers/staging/iio/dac/ad5504.c
index 57539ce8e6cf..bc17205fe722 100644
--- a/drivers/staging/iio/dac/ad5504.c
+++ b/drivers/staging/iio/dac/ad5504.c
@@ -18,9 +18,27 @@
 
 #include "../iio.h"
 #include "../sysfs.h"
+#include "../events.h"
 #include "dac.h"
 #include "ad5504.h"
 
+#define AD5504_CHANNEL(_chan) { \
+	.type = IIO_VOLTAGE, \
+	.indexed = 1, \
+	.output = 1, \
+	.channel = (_chan), \
+	.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT, \
+	.address = AD5504_ADDR_DAC(_chan), \
+	.scan_type = IIO_ST('u', 12, 16, 0), \
+}
+
+static const struct iio_chan_spec ad5504_channels[] = {
+	AD5504_CHANNEL(0),
+	AD5504_CHANNEL(1),
+	AD5504_CHANNEL(2),
+	AD5504_CHANNEL(3),
+};
+
 static int ad5504_spi_write(struct spi_device *spi, u8 addr, u16 val)
 {
 	u16 tmp = cpu_to_be16(AD5504_CMD_WRITE |
@@ -30,13 +48,14 @@ static int ad5504_spi_write(struct spi_device *spi, u8 addr, u16 val)
 	return spi_write(spi, (u8 *)&tmp, 2);
 }
 
-static int ad5504_spi_read(struct spi_device *spi, u8 addr, u16 *val)
+static int ad5504_spi_read(struct spi_device *spi, u8 addr)
 {
 	u16 tmp = cpu_to_be16(AD5504_CMD_READ | AD5504_ADDR(addr));
+	u16 val;
 	int ret;
 	struct spi_transfer	t = {
 			.tx_buf		= &tmp,
-			.rx_buf		= val,
+			.rx_buf		= &val,
 			.len		= 2,
 		};
 	struct spi_message	m;
@@ -45,44 +64,61 @@ static int ad5504_spi_read(struct spi_device *spi, u8 addr, u16 *val)
 	spi_message_add_tail(&t, &m);
 	ret = spi_sync(spi, &m);
 
-	*val = be16_to_cpu(*val) & AD5504_RES_MASK;
+	if (ret < 0)
+		return ret;
 
-	return ret;
+	return be16_to_cpu(val) & AD5504_RES_MASK;
 }
 
-static ssize_t ad5504_write_dac(struct device *dev,
-				 struct device_attribute *attr,
-				 const char *buf, size_t len)
+static int ad5504_read_raw(struct iio_dev *indio_dev,
+			   struct iio_chan_spec const *chan,
+			   int *val,
+			   int *val2,
+			   long m)
 {
-	struct iio_dev *indio_dev = dev_get_drvdata(dev);
 	struct ad5504_state *st = iio_priv(indio_dev);
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
-	long readin;
+	unsigned long scale_uv;
 	int ret;
 
-	ret = strict_strtol(buf, 10, &readin);
-	if (ret)
-		return ret;
+	switch (m) {
+	case 0:
+		ret = ad5504_spi_read(st->spi, chan->address);
+		if (ret < 0)
+			return ret;
 
-	ret = ad5504_spi_write(st->spi, this_attr->address, readin);
-	return ret ? ret : len;
+		*val = ret;
+
+		return IIO_VAL_INT;
+	case IIO_CHAN_INFO_SCALE:
+		scale_uv = (st->vref_mv * 1000) >> chan->scan_type.realbits;
+		*val =  scale_uv / 1000;
+		*val2 = (scale_uv % 1000) * 1000;
+		return IIO_VAL_INT_PLUS_MICRO;
+
+	}
+	return -EINVAL;
 }
 
-static ssize_t ad5504_read_dac(struct device *dev,
-					   struct device_attribute *attr,
-					   char *buf)
+static int ad5504_write_raw(struct iio_dev *indio_dev,
+			       struct iio_chan_spec const *chan,
+			       int val,
+			       int val2,
+			       long mask)
 {
-	struct iio_dev *indio_dev = dev_get_drvdata(dev);
 	struct ad5504_state *st = iio_priv(indio_dev);
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
 	int ret;
-	u16 val;
 
-	ret = ad5504_spi_read(st->spi, this_attr->address, &val);
-	if (ret)
-		return ret;
+	switch (mask) {
+	case 0:
+		if (val >= (1 << chan->scan_type.realbits) || val < 0)
+			return -EINVAL;
 
-	return sprintf(buf, "%d\n", val);
+		return ad5504_spi_write(st->spi, chan->address, val);
+	default:
+		ret = -EINVAL;
+	}
+
+	return -EINVAL;
 }
 
 static ssize_t ad5504_read_powerdown_mode(struct device *dev,
@@ -157,32 +193,6 @@ static ssize_t ad5504_write_dac_powerdown(struct device *dev,
 	return ret ? ret : len;
 }
 
-static ssize_t ad5504_show_scale(struct device *dev,
-				struct device_attribute *attr,
-				char *buf)
-{
-	struct iio_dev *indio_dev = dev_get_drvdata(dev);
-	struct ad5504_state *st = iio_priv(indio_dev);
-	/* Corresponds to Vref / 2^(bits) */
-	unsigned int scale_uv = (st->vref_mv * 1000) >> AD5505_BITS;
-
-	return sprintf(buf, "%d.%03d\n", scale_uv / 1000, scale_uv % 1000);
-}
-static IIO_DEVICE_ATTR(out_voltage_scale, S_IRUGO, ad5504_show_scale, NULL, 0);
-
-#define IIO_DEV_ATTR_OUT_RW_RAW(_num, _show, _store, _addr)		\
-	IIO_DEVICE_ATTR(out_voltage##_num##_raw,			\
-			S_IRUGO | S_IWUSR, _show, _store, _addr)
-
-static IIO_DEV_ATTR_OUT_RW_RAW(0, ad5504_read_dac,
-	ad5504_write_dac, AD5504_ADDR_DAC0);
-static IIO_DEV_ATTR_OUT_RW_RAW(1, ad5504_read_dac,
-	ad5504_write_dac, AD5504_ADDR_DAC1);
-static IIO_DEV_ATTR_OUT_RW_RAW(2, ad5504_read_dac,
-	ad5504_write_dac, AD5504_ADDR_DAC2);
-static IIO_DEV_ATTR_OUT_RW_RAW(3, ad5504_read_dac,
-	ad5504_write_dac, AD5504_ADDR_DAC3);
-
 static IIO_DEVICE_ATTR(out_voltage_powerdown_mode, S_IRUGO |
 			S_IWUSR, ad5504_read_powerdown_mode,
 			ad5504_write_powerdown_mode, 0);
@@ -203,17 +213,12 @@ static IIO_DEV_ATTR_DAC_POWERDOWN(3, ad5504_read_dac_powerdown,
 				   ad5504_write_dac_powerdown, 3);
 
 static struct attribute *ad5504_attributes[] = {
-	&iio_dev_attr_out_voltage0_raw.dev_attr.attr,
-	&iio_dev_attr_out_voltage1_raw.dev_attr.attr,
-	&iio_dev_attr_out_voltage2_raw.dev_attr.attr,
-	&iio_dev_attr_out_voltage3_raw.dev_attr.attr,
 	&iio_dev_attr_out_voltage0_powerdown.dev_attr.attr,
 	&iio_dev_attr_out_voltage1_powerdown.dev_attr.attr,
 	&iio_dev_attr_out_voltage2_powerdown.dev_attr.attr,
 	&iio_dev_attr_out_voltage3_powerdown.dev_attr.attr,
 	&iio_dev_attr_out_voltage_powerdown_mode.dev_attr.attr,
 	&iio_const_attr_out_voltage_powerdown_mode_available.dev_attr.attr,
-	&iio_dev_attr_out_voltage_scale.dev_attr.attr,
 	NULL,
 };
 
@@ -222,11 +227,9 @@ static const struct attribute_group ad5504_attribute_group = {
 };
 
 static struct attribute *ad5501_attributes[] = {
-	&iio_dev_attr_out_voltage0_raw.dev_attr.attr,
 	&iio_dev_attr_out_voltage0_powerdown.dev_attr.attr,
 	&iio_dev_attr_out_voltage_powerdown_mode.dev_attr.attr,
 	&iio_const_attr_out_voltage_powerdown_mode_available.dev_attr.attr,
-	&iio_dev_attr_out_voltage_scale.dev_attr.attr,
 	NULL,
 };
 
@@ -261,12 +264,16 @@ static irqreturn_t ad5504_event_handler(int irq, void *private)
 }
 
 static const struct iio_info ad5504_info = {
+	.write_raw = ad5504_write_raw,
+	.read_raw = ad5504_read_raw,
 	.attrs = &ad5504_attribute_group,
 	.event_attrs = &ad5504_ev_attribute_group,
 	.driver_module = THIS_MODULE,
 };
 
 static const struct iio_info ad5501_info = {
+	.write_raw = ad5504_write_raw,
+	.read_raw = ad5504_read_raw,
 	.attrs = &ad5501_attribute_group,
 	.event_attrs = &ad5504_ev_attribute_group,
 	.driver_module = THIS_MODULE,
@@ -307,10 +314,14 @@ static int __devinit ad5504_probe(struct spi_device *spi)
 	st->spi = spi;
 	indio_dev->dev.parent = &spi->dev;
 	indio_dev->name = spi_get_device_id(st->spi)->name;
-	if (spi_get_device_id(st->spi)->driver_data == ID_AD5501)
+	if (spi_get_device_id(st->spi)->driver_data == ID_AD5501) {
 		indio_dev->info = &ad5501_info;
-	else
+		indio_dev->num_channels = 1;
+	} else {
 		indio_dev->info = &ad5504_info;
+		indio_dev->num_channels = 4;
+	}
+	indio_dev->channels = ad5504_channels;
 	indio_dev->modes = INDIO_DIRECT_MODE;
 
 	if (spi->irq) {
@@ -367,6 +378,7 @@ static const struct spi_device_id ad5504_id[] = {
 	{"ad5501", ID_AD5501},
 	{}
 };
+MODULE_DEVICE_TABLE(spi, ad5504_id);
 
 static struct spi_driver ad5504_driver = {
 	.driver = {
diff --git a/drivers/staging/iio/dac/ad5504.h b/drivers/staging/iio/dac/ad5504.h
index 85beb1dd29b9..afe09522f53c 100644
--- a/drivers/staging/iio/dac/ad5504.h
+++ b/drivers/staging/iio/dac/ad5504.h
@@ -18,10 +18,7 @@
 
 /* Registers */
 #define AD5504_ADDR_NOOP		0
-#define AD5504_ADDR_DAC0		1
-#define AD5504_ADDR_DAC1		2
-#define AD5504_ADDR_DAC2		3
-#define AD5504_ADDR_DAC3		4
+#define AD5504_ADDR_DAC(x)		((x) + 1)
 #define AD5504_ADDR_ALL_DAC		5
 #define AD5504_ADDR_CTRL		7
 
diff --git a/drivers/staging/iio/dac/ad5624r.h b/drivers/staging/iio/dac/ad5624r.h
index b71c6a03e780..5dca3028cdfd 100644
--- a/drivers/staging/iio/dac/ad5624r.h
+++ b/drivers/staging/iio/dac/ad5624r.h
@@ -32,12 +32,12 @@
 
 /**
  * struct ad5624r_chip_info - chip specific information
- * @bits:		accuracy of the DAC in bits
+ * @channels:		channel spec for the DAC
  * @int_vref_mv:	AD5620/40/60: the internal reference voltage
  */
 
 struct ad5624r_chip_info {
-	u8				bits;
+	const struct iio_chan_spec	*channels;
 	u16				int_vref_mv;
 };
 
diff --git a/drivers/staging/iio/dac/ad5624r_spi.c b/drivers/staging/iio/dac/ad5624r_spi.c
index 6e05f0dbae0b..10c7484366ef 100644
--- a/drivers/staging/iio/dac/ad5624r_spi.c
+++ b/drivers/staging/iio/dac/ad5624r_spi.c
@@ -21,29 +21,51 @@
 #include "dac.h"
 #include "ad5624r.h"
 
+#define AD5624R_CHANNEL(_chan, _bits) { \
+	.type = IIO_VOLTAGE, \
+	.indexed = 1, \
+	.output = 1, \
+	.channel = (_chan), \
+	.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT, \
+	.address = (_chan), \
+	.scan_type = IIO_ST('u', (_bits), 16, 16 - (_bits)), \
+}
+
+#define DECLARE_AD5624R_CHANNELS(_name, _bits) \
+	const struct iio_chan_spec _name##_channels[] = { \
+		AD5624R_CHANNEL(0, _bits), \
+		AD5624R_CHANNEL(1, _bits), \
+		AD5624R_CHANNEL(2, _bits), \
+		AD5624R_CHANNEL(3, _bits), \
+}
+
+static DECLARE_AD5624R_CHANNELS(ad5624r, 12);
+static DECLARE_AD5624R_CHANNELS(ad5644r, 14);
+static DECLARE_AD5624R_CHANNELS(ad5664r, 16);
+
 static const struct ad5624r_chip_info ad5624r_chip_info_tbl[] = {
 	[ID_AD5624R3] = {
-		.bits = 12,
-		.int_vref_mv = 1250,
-	},
-	[ID_AD5644R3] = {
-		.bits = 14,
-		.int_vref_mv = 1250,
-	},
-	[ID_AD5664R3] = {
-		.bits = 16,
+		.channels = ad5624r_channels,
 		.int_vref_mv = 1250,
 	},
 	[ID_AD5624R5] = {
-		.bits = 12,
+		.channels = ad5624r_channels,
 		.int_vref_mv = 2500,
 	},
+	[ID_AD5644R3] = {
+		.channels = ad5644r_channels,
+		.int_vref_mv = 1250,
+	},
 	[ID_AD5644R5] = {
-		.bits = 14,
+		.channels = ad5644r_channels,
 		.int_vref_mv = 2500,
 	},
+	[ID_AD5664R3] = {
+		.channels = ad5664r_channels,
+		.int_vref_mv = 1250,
+	},
 	[ID_AD5664R5] = {
-		.bits = 16,
+		.channels = ad5664r_channels,
 		.int_vref_mv = 2500,
 	},
 };
@@ -70,24 +92,49 @@ static int ad5624r_spi_write(struct spi_device *spi,
 	return spi_write(spi, msg, 3);
 }
 
-static ssize_t ad5624r_write_dac(struct device *dev,
-				 struct device_attribute *attr,
-				 const char *buf, size_t len)
+static int ad5624r_read_raw(struct iio_dev *indio_dev,
+			   struct iio_chan_spec const *chan,
+			   int *val,
+			   int *val2,
+			   long m)
 {
-	long readin;
-	int ret;
-	struct iio_dev *indio_dev = dev_get_drvdata(dev);
 	struct ad5624r_state *st = iio_priv(indio_dev);
-	struct iio_dev_attr *this_attr = to_iio_dev_attr(attr);
+	unsigned long scale_uv;
 
-	ret = strict_strtol(buf, 10, &readin);
-	if (ret)
-		return ret;
+	switch (m) {
+	case IIO_CHAN_INFO_SCALE:
+		scale_uv = (st->vref_mv * 1000) >> chan->scan_type.realbits;
+		*val =  scale_uv / 1000;
+		*val2 = (scale_uv % 1000) * 1000;
+		return IIO_VAL_INT_PLUS_MICRO;
 
-	ret = ad5624r_spi_write(st->us, AD5624R_CMD_WRITE_INPUT_N_UPDATE_N,
-				this_attr->address, readin,
-				st->chip_info->bits);
-	return ret ? ret : len;
+	}
+	return -EINVAL;
+}
+
+static int ad5624r_write_raw(struct iio_dev *indio_dev,
+			       struct iio_chan_spec const *chan,
+			       int val,
+			       int val2,
+			       long mask)
+{
+	struct ad5624r_state *st = iio_priv(indio_dev);
+	int ret;
+
+	switch (mask) {
+	case 0:
+		if (val >= (1 << chan->scan_type.realbits) || val < 0)
+			return -EINVAL;
+
+		return ad5624r_spi_write(st->us,
+				AD5624R_CMD_WRITE_INPUT_N_UPDATE_N,
+				chan->address, val,
+				chan->scan_type.shift);
+	default:
+		ret = -EINVAL;
+	}
+
+	return -EINVAL;
 }
 
 static ssize_t ad5624r_read_powerdown_mode(struct device *dev,
@@ -161,24 +208,6 @@ static ssize_t ad5624r_write_dac_powerdown(struct device *dev,
 	return ret ? ret : len;
 }
 
-static ssize_t ad5624r_show_scale(struct device *dev,
-				struct device_attribute *attr,
-				char *buf)
-{
-	struct iio_dev *indio_dev = dev_get_drvdata(dev);
-	struct ad5624r_state *st = iio_priv(indio_dev);
-	/* Corresponds to Vref / 2^(bits) */
-	unsigned int scale_uv = (st->vref_mv * 1000) >> st->chip_info->bits;
-
-	return sprintf(buf, "%d.%03d\n", scale_uv / 1000, scale_uv % 1000);
-}
-static IIO_DEVICE_ATTR(out_voltage_scale, S_IRUGO, ad5624r_show_scale, NULL, 0);
-
-static IIO_DEV_ATTR_OUT_RAW(0, ad5624r_write_dac, AD5624R_ADDR_DAC0);
-static IIO_DEV_ATTR_OUT_RAW(1, ad5624r_write_dac, AD5624R_ADDR_DAC1);
-static IIO_DEV_ATTR_OUT_RAW(2, ad5624r_write_dac, AD5624R_ADDR_DAC2);
-static IIO_DEV_ATTR_OUT_RAW(3, ad5624r_write_dac, AD5624R_ADDR_DAC3);
-
 static IIO_DEVICE_ATTR(out_voltage_powerdown_mode, S_IRUGO |
 			S_IWUSR, ad5624r_read_powerdown_mode,
 			ad5624r_write_powerdown_mode, 0);
@@ -200,17 +229,12 @@ static IIO_DEV_ATTR_DAC_POWERDOWN(3, ad5624r_read_dac_powerdown,
 				   ad5624r_write_dac_powerdown, 3);
 
 static struct attribute *ad5624r_attributes[] = {
-	&iio_dev_attr_out_voltage0_raw.dev_attr.attr,
-	&iio_dev_attr_out_voltage1_raw.dev_attr.attr,
-	&iio_dev_attr_out_voltage2_raw.dev_attr.attr,
-	&iio_dev_attr_out_voltage3_raw.dev_attr.attr,
 	&iio_dev_attr_out_voltage0_powerdown.dev_attr.attr,
 	&iio_dev_attr_out_voltage1_powerdown.dev_attr.attr,
 	&iio_dev_attr_out_voltage2_powerdown.dev_attr.attr,
 	&iio_dev_attr_out_voltage3_powerdown.dev_attr.attr,
 	&iio_dev_attr_out_voltage_powerdown_mode.dev_attr.attr,
 	&iio_const_attr_out_voltage_powerdown_mode_available.dev_attr.attr,
-	&iio_dev_attr_out_voltage_scale.dev_attr.attr,
 	NULL,
 };
 
@@ -219,6 +243,8 @@ static const struct attribute_group ad5624r_attribute_group = {
 };
 
 static const struct iio_info ad5624r_info = {
+	.write_raw = ad5624r_write_raw,
+	.read_raw = ad5624r_read_raw,
 	.attrs = &ad5624r_attribute_group,
 	.driver_module = THIS_MODULE,
 };
@@ -259,6 +285,8 @@ static int __devinit ad5624r_probe(struct spi_device *spi)
 	indio_dev->name = spi_get_device_id(spi)->name;
 	indio_dev->info = &ad5624r_info;
 	indio_dev->modes = INDIO_DIRECT_MODE;
+	indio_dev->channels = st->chip_info->channels;
+	indio_dev->num_channels = AD5624R_DAC_CHANNELS;
 
 	ret = ad5624r_spi_write(spi, AD5624R_CMD_INTERNAL_REFER_SETUP, 0,
 				!!voltage_uv, 16);
@@ -307,6 +335,7 @@ static const struct spi_device_id ad5624r_id[] = {
 	{"ad5664r5", ID_AD5664R5},
 	{}
 };
+MODULE_DEVICE_TABLE(spi, ad5624r_id);
 
 static struct spi_driver ad5624r_driver = {
 	.driver = {
diff --git a/drivers/staging/iio/dac/ad5686.c b/drivers/staging/iio/dac/ad5686.c
index e72db2fbfedf..ce2d6193dd89 100644
--- a/drivers/staging/iio/dac/ad5686.c
+++ b/drivers/staging/iio/dac/ad5686.c
@@ -99,7 +99,7 @@ enum ad5686_supported_device_ids {
 		.indexed = 1,					\
 		.output = 1,					\
 		.channel = chan,				\
-		.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),	\
+		.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,	\
 		.address = AD5686_ADDR_DAC(chan),			\
 		.scan_type = IIO_ST('u', bits, 16, shift)	\
 }
@@ -306,7 +306,7 @@ static int ad5686_read_raw(struct iio_dev *indio_dev,
 		*val = ret;
 		return IIO_VAL_INT;
 		break;
-	case (1 << IIO_CHAN_INFO_SCALE_SHARED):
+	case IIO_CHAN_INFO_SCALE:
 		scale_uv = (st->vref_mv * 100000)
 			>> (chan->scan_type.realbits);
 		*val =  scale_uv / 100000;
@@ -437,6 +437,7 @@ static const struct spi_device_id ad5686_id[] = {
 	{"ad5686", ID_AD5686},
 	{}
 };
+MODULE_DEVICE_TABLE(spi, ad5686_id);
 
 static struct spi_driver ad5686_driver = {
 	.driver = {
diff --git a/drivers/staging/iio/dac/ad5764.c b/drivers/staging/iio/dac/ad5764.c
new file mode 100644
index 000000000000..ff91480ae65c
--- /dev/null
+++ b/drivers/staging/iio/dac/ad5764.c
@@ -0,0 +1,393 @@
+/*
+ * Analog devices AD5764, AD5764R, AD5744, AD5744R quad-channel
+ * Digital to Analog Converters driver
+ *
+ * Copyright 2011 Analog Devices Inc.
+ *
+ * Licensed under the GPL-2.
+ */
+
+#include <linux/device.h>
+#include <linux/err.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/spi/spi.h>
+#include <linux/slab.h>
+#include <linux/sysfs.h>
+#include <linux/regulator/consumer.h>
+
+#include "../iio.h"
+#include "../sysfs.h"
+#include "dac.h"
+
+#define AD5764_REG_SF_NOP			0x0
+#define AD5764_REG_SF_CONFIG			0x1
+#define AD5764_REG_SF_CLEAR			0x4
+#define AD5764_REG_SF_LOAD			0x5
+#define AD5764_REG_DATA(x)			((2 << 3) | (x))
+#define AD5764_REG_COARSE_GAIN(x)		((3 << 3) | (x))
+#define AD5764_REG_FINE_GAIN(x)			((4 << 3) | (x))
+#define AD5764_REG_OFFSET(x)			((5 << 3) | (x))
+
+#define AD5764_NUM_CHANNELS 4
+
+/**
+ * struct ad5764_chip_info - chip specific information
+ * @int_vref:	Value of the internal reference voltage in uV - 0 if external
+ *		reference voltage is used
+ * @channel	channel specification
+*/
+
+struct ad5764_chip_info {
+	unsigned long int_vref;
+	const struct iio_chan_spec *channels;
+};
+
+/**
+ * struct ad5764_state - driver instance specific data
+ * @spi:		spi_device
+ * @chip_info:		chip info
+ * @vref_reg:		vref supply regulators
+ * @data:		spi transfer buffers
+ */
+
+struct ad5764_state {
+	struct spi_device		*spi;
+	const struct ad5764_chip_info	*chip_info;
+	struct regulator_bulk_data	vref_reg[2];
+
+	/*
+	 * DMA (thus cache coherency maintenance) requires the
+	 * transfer buffers to live in their own cache lines.
+	 */
+	union {
+		__be32 d32;
+		u8 d8[4];
+	} data[2] ____cacheline_aligned;
+};
+
+enum ad5764_type {
+	ID_AD5744,
+	ID_AD5744R,
+	ID_AD5764,
+	ID_AD5764R,
+};
+
+#define AD5764_CHANNEL(_chan, _bits) {				\
+	.type = IIO_VOLTAGE,					\
+	.indexed = 1,						\
+	.output = 1,						\
+	.channel = (_chan),					\
+	.address = (_chan),					\
+	.info_mask = IIO_CHAN_INFO_OFFSET_SHARED_BIT |		\
+		IIO_CHAN_INFO_SCALE_SEPARATE_BIT |		\
+		IIO_CHAN_INFO_CALIBSCALE_SEPARATE_BIT |		\
+		IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT,		\
+	.scan_type = IIO_ST('u', (_bits), 16, 16 - (_bits))	\
+}
+
+#define DECLARE_AD5764_CHANNELS(_name, _bits) \
+const struct iio_chan_spec _name##_channels[] = { \
+	AD5764_CHANNEL(0, (_bits)), \
+	AD5764_CHANNEL(1, (_bits)), \
+	AD5764_CHANNEL(2, (_bits)), \
+	AD5764_CHANNEL(3, (_bits)), \
+};
+
+static DECLARE_AD5764_CHANNELS(ad5764, 16);
+static DECLARE_AD5764_CHANNELS(ad5744, 14);
+
+static const struct ad5764_chip_info ad5764_chip_infos[] = {
+	[ID_AD5744] = {
+		.int_vref = 0,
+		.channels = ad5744_channels,
+	},
+	[ID_AD5744R] = {
+		.int_vref = 5000000,
+		.channels = ad5744_channels,
+	},
+	[ID_AD5764] = {
+		.int_vref = 0,
+		.channels = ad5764_channels,
+	},
+	[ID_AD5764R] = {
+		.int_vref = 5000000,
+		.channels = ad5764_channels,
+	},
+};
+
+static int ad5764_write(struct iio_dev *indio_dev, unsigned int reg,
+	unsigned int val)
+{
+	struct ad5764_state *st = iio_priv(indio_dev);
+	int ret;
+
+	mutex_lock(&indio_dev->mlock);
+	st->data[0].d32 = cpu_to_be32((reg << 16) | val);
+
+	ret = spi_write(st->spi, &st->data[0].d8[1], 3);
+	mutex_unlock(&indio_dev->mlock);
+
+	return ret;
+}
+
+static int ad5764_read(struct iio_dev *indio_dev, unsigned int reg,
+	unsigned int *val)
+{
+	struct ad5764_state *st = iio_priv(indio_dev);
+	struct spi_message m;
+	int ret;
+	struct spi_transfer t[] = {
+		{
+			.tx_buf = &st->data[0].d8[1],
+			.len = 3,
+			.cs_change = 1,
+		}, {
+			.rx_buf = &st->data[1].d8[1],
+			.len = 3,
+		},
+	};
+
+	spi_message_init(&m);
+	spi_message_add_tail(&t[0], &m);
+	spi_message_add_tail(&t[1], &m);
+
+	mutex_lock(&indio_dev->mlock);
+
+	st->data[0].d32 = cpu_to_be32((1 << 23) | (reg << 16));
+
+	ret = spi_sync(st->spi, &m);
+	if (ret >= 0)
+		*val = be32_to_cpu(st->data[1].d32) & 0xffff;
+
+	mutex_unlock(&indio_dev->mlock);
+
+	return ret;
+}
+
+static int ad5764_chan_info_to_reg(struct iio_chan_spec const *chan, long info)
+{
+	switch (info) {
+	case 0:
+		return AD5764_REG_DATA(chan->address);
+	case IIO_CHAN_INFO_CALIBBIAS:
+		return AD5764_REG_OFFSET(chan->address);
+	case IIO_CHAN_INFO_CALIBSCALE:
+		return AD5764_REG_FINE_GAIN(chan->address);
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+static int ad5764_write_raw(struct iio_dev *indio_dev,
+	struct iio_chan_spec const *chan, int val, int val2, long info)
+{
+	const int max_val = (1 << chan->scan_type.realbits);
+	unsigned int reg;
+
+	switch (info) {
+	case 0:
+		if (val >= max_val || val < 0)
+			return -EINVAL;
+		val <<= chan->scan_type.shift;
+		break;
+	case IIO_CHAN_INFO_CALIBBIAS:
+		if (val >= 128 || val < -128)
+			return -EINVAL;
+		break;
+	case IIO_CHAN_INFO_CALIBSCALE:
+		if (val >= 32 || val < -32)
+			return -EINVAL;
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	reg = ad5764_chan_info_to_reg(chan, info);
+	return ad5764_write(indio_dev, reg, (u16)val);
+}
+
+static int ad5764_get_channel_vref(struct ad5764_state *st,
+	unsigned int channel)
+{
+	if (st->chip_info->int_vref)
+		return st->chip_info->int_vref;
+	else
+		return regulator_get_voltage(st->vref_reg[channel / 2].consumer);
+}
+
+static int ad5764_read_raw(struct iio_dev *indio_dev,
+	struct iio_chan_spec const *chan, int *val, int *val2, long info)
+{
+	struct ad5764_state *st = iio_priv(indio_dev);
+	unsigned long scale_uv;
+	unsigned int reg;
+	int vref;
+	int ret;
+
+	switch (info) {
+	case 0:
+		reg = AD5764_REG_DATA(chan->address);
+		ret = ad5764_read(indio_dev, reg, val);
+		if (ret < 0)
+			return ret;
+		*val >>= chan->scan_type.shift;
+		return IIO_VAL_INT;
+	case IIO_CHAN_INFO_CALIBBIAS:
+		reg = AD5764_REG_OFFSET(chan->address);
+		ret = ad5764_read(indio_dev, reg, val);
+		if (ret < 0)
+			return ret;
+		*val = sign_extend32(*val, 7);
+		return IIO_VAL_INT;
+	case IIO_CHAN_INFO_CALIBSCALE:
+		reg = AD5764_REG_FINE_GAIN(chan->address);
+		ret = ad5764_read(indio_dev, reg, val);
+		if (ret < 0)
+			return ret;
+		*val = sign_extend32(*val, 5);
+		return IIO_VAL_INT;
+	case IIO_CHAN_INFO_SCALE:
+		/* vout = 4 * vref + ((dac_code / 65535) - 0.5) */
+		vref = ad5764_get_channel_vref(st, chan->channel);
+		if (vref < 0)
+			return vref;
+
+		scale_uv = (vref * 4 * 100) >> chan->scan_type.realbits;
+		*val = scale_uv / 100000;
+		*val2 = (scale_uv % 100000) * 10;
+		return IIO_VAL_INT_PLUS_MICRO;
+	case IIO_CHAN_INFO_OFFSET:
+		*val = -(1 << chan->scan_type.realbits) / 2;
+		return IIO_VAL_INT;
+	}
+
+	return -EINVAL;
+}
+
+static const struct iio_info ad5764_info = {
+	.read_raw = ad5764_read_raw,
+	.write_raw = ad5764_write_raw,
+	.driver_module = THIS_MODULE,
+};
+
+static int __devinit ad5764_probe(struct spi_device *spi)
+{
+	enum ad5764_type type = spi_get_device_id(spi)->driver_data;
+	struct iio_dev *indio_dev;
+	struct ad5764_state *st;
+	int ret;
+
+	indio_dev = iio_allocate_device(sizeof(*st));
+	if (indio_dev == NULL) {
+		dev_err(&spi->dev, "Failed to allocate iio device\n");
+		return -ENOMEM;
+	}
+
+	st = iio_priv(indio_dev);
+	spi_set_drvdata(spi, indio_dev);
+
+	st->spi = spi;
+	st->chip_info = &ad5764_chip_infos[type];
+
+	indio_dev->dev.parent = &spi->dev;
+	indio_dev->name = spi_get_device_id(spi)->name;
+	indio_dev->info = &ad5764_info;
+	indio_dev->modes = INDIO_DIRECT_MODE;
+	indio_dev->num_channels = AD5764_NUM_CHANNELS;
+	indio_dev->channels = st->chip_info->channels;
+
+	if (st->chip_info->int_vref == 0) {
+		st->vref_reg[0].supply = "vrefAB";
+		st->vref_reg[1].supply = "vrefCD";
+
+		ret = regulator_bulk_get(&st->spi->dev,
+			ARRAY_SIZE(st->vref_reg), st->vref_reg);
+		if (ret) {
+			dev_err(&spi->dev, "Failed to request vref regulators: %d\n",
+				ret);
+			goto error_free;
+		}
+
+		ret = regulator_bulk_enable(ARRAY_SIZE(st->vref_reg),
+			st->vref_reg);
+		if (ret) {
+			dev_err(&spi->dev, "Failed to enable vref regulators: %d\n",
+				ret);
+			goto error_free_reg;
+		}
+	}
+
+	ret = iio_device_register(indio_dev);
+	if (ret) {
+		dev_err(&spi->dev, "Failed to register iio device: %d\n", ret);
+		goto error_disable_reg;
+	}
+
+	return 0;
+
+error_disable_reg:
+	if (st->chip_info->int_vref == 0)
+		regulator_bulk_disable(ARRAY_SIZE(st->vref_reg), st->vref_reg);
+error_free_reg:
+	if (st->chip_info->int_vref == 0)
+		regulator_bulk_free(ARRAY_SIZE(st->vref_reg), st->vref_reg);
+error_free:
+	iio_free_device(indio_dev);
+
+	return ret;
+}
+
+static int __devexit ad5764_remove(struct spi_device *spi)
+{
+	struct iio_dev *indio_dev = spi_get_drvdata(spi);
+	struct ad5764_state *st = iio_priv(indio_dev);
+
+	iio_device_unregister(indio_dev);
+
+	if (st->chip_info->int_vref == 0) {
+		regulator_bulk_disable(ARRAY_SIZE(st->vref_reg), st->vref_reg);
+		regulator_bulk_free(ARRAY_SIZE(st->vref_reg), st->vref_reg);
+	}
+
+	iio_free_device(indio_dev);
+
+	return 0;
+}
+
+static const struct spi_device_id ad5764_ids[] = {
+	{ "ad5744", ID_AD5744 },
+	{ "ad5744r", ID_AD5744R },
+	{ "ad5764", ID_AD5764 },
+	{ "ad5764r", ID_AD5764R },
+	{ }
+};
+MODULE_DEVICE_TABLE(spi, ad5764_ids);
+
+static struct spi_driver ad5764_driver = {
+	.driver = {
+		.name = "ad5764",
+		.owner = THIS_MODULE,
+	},
+	.probe = ad5764_probe,
+	.remove = __devexit_p(ad5764_remove),
+	.id_table = ad5764_ids,
+};
+
+static int __init ad5764_spi_init(void)
+{
+	return spi_register_driver(&ad5764_driver);
+}
+module_init(ad5764_spi_init);
+
+static void __exit ad5764_spi_exit(void)
+{
+	spi_unregister_driver(&ad5764_driver);
+}
+module_exit(ad5764_spi_exit);
+
+MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
+MODULE_DESCRIPTION("Analog Devices AD5744/AD5744R/AD5764/AD5764R DAC");
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/dac/ad5791.c b/drivers/staging/iio/dac/ad5791.c
index 4a80fd822231..ac45636a8d72 100644
--- a/drivers/staging/iio/dac/ad5791.c
+++ b/drivers/staging/iio/dac/ad5791.c
@@ -1,5 +1,6 @@
 /*
- * AD5760, AD5780, AD5781, AD5791 Voltage Output Digital to Analog Converter
+ * AD5760, AD5780, AD5781, AD5790, AD5791 Voltage Output Digital to Analog
+ * Converter
  *
  * Copyright 2011 Analog Devices Inc.
  *
@@ -77,8 +78,8 @@ static int ad5791_spi_read(struct spi_device *spi, u8 addr, u32 *val)
 	.indexed = 1,					\
 	.address = AD5791_ADDR_DAC0,			\
 	.channel = 0,					\
-	.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED) | \
-		(1 << IIO_CHAN_INFO_OFFSET_SHARED),	\
+	.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT | \
+		IIO_CHAN_INFO_OFFSET_SHARED_BIT,	\
 	.scan_type = IIO_ST('u', bits, 24, shift)	\
 }
 
@@ -237,11 +238,11 @@ static int ad5791_read_raw(struct iio_dev *indio_dev,
 		*val &= AD5791_DAC_MASK;
 		*val >>= chan->scan_type.shift;
 		return IIO_VAL_INT;
-	case (1 << IIO_CHAN_INFO_SCALE_SHARED):
+	case IIO_CHAN_INFO_SCALE:
 		*val = 0;
 		*val2 = (((u64)st->vref_mv) * 1000000ULL) >> chan->scan_type.realbits;
 		return IIO_VAL_INT_PLUS_MICRO;
-	case (1 << IIO_CHAN_INFO_OFFSET_SHARED):
+	case IIO_CHAN_INFO_OFFSET:
 		val64 = (((u64)st->vref_neg_mv) << chan->scan_type.realbits);
 		do_div(val64, st->vref_mv);
 		*val = -val64;
@@ -397,9 +398,11 @@ static const struct spi_device_id ad5791_id[] = {
 	{"ad5760", ID_AD5760},
 	{"ad5780", ID_AD5780},
 	{"ad5781", ID_AD5781},
+	{"ad5790", ID_AD5791},
 	{"ad5791", ID_AD5791},
 	{}
 };
+MODULE_DEVICE_TABLE(spi, ad5791_id);
 
 static struct spi_driver ad5791_driver = {
 	.driver = {
@@ -413,5 +416,5 @@ static struct spi_driver ad5791_driver = {
 module_spi_driver(ad5791_driver);
 
 MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
-MODULE_DESCRIPTION("Analog Devices AD5760/AD5780/AD5781/AD5791 DAC");
+MODULE_DESCRIPTION("Analog Devices AD5760/AD5780/AD5781/AD5790/AD5791 DAC");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/dds/ad5930.c b/drivers/staging/iio/dds/ad5930.c
index 4a360d044a36..9c32d1beae25 100644
--- a/drivers/staging/iio/dds/ad5930.c
+++ b/drivers/staging/iio/dds/ad5930.c
@@ -148,3 +148,4 @@ module_spi_driver(ad5930_driver);
 MODULE_AUTHOR("Cliff Cai");
 MODULE_DESCRIPTION("Analog Devices ad5930 driver");
 MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("spi:" DRV_NAME);
diff --git a/drivers/staging/iio/dds/ad9832.c b/drivers/staging/iio/dds/ad9832.c
index cc32fd65b8b3..2ccf25dd9289 100644
--- a/drivers/staging/iio/dds/ad9832.c
+++ b/drivers/staging/iio/dds/ad9832.c
@@ -88,7 +88,7 @@ static ssize_t ad9832_write(struct device *dev,
 		goto error_ret;
 
 	mutex_lock(&indio_dev->mlock);
-	switch (this_attr->address) {
+	switch ((u32) this_attr->address) {
 	case AD9832_FREQ0HM:
 	case AD9832_FREQ1HM:
 		ret = ad9832_write_frequency(st, this_attr->address, val);
@@ -344,11 +344,11 @@ static const struct spi_device_id ad9832_id[] = {
 	{"ad9835", 0},
 	{}
 };
+MODULE_DEVICE_TABLE(spi, ad9832_id);
 
 static struct spi_driver ad9832_driver = {
 	.driver = {
 		.name	= "ad9832",
-		.bus	= &spi_bus_type,
 		.owner	= THIS_MODULE,
 	},
 	.probe		= ad9832_probe,
@@ -360,4 +360,3 @@ module_spi_driver(ad9832_driver);
 MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
 MODULE_DESCRIPTION("Analog Devices AD9832/AD9835 DDS");
 MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("spi:ad9832");
diff --git a/drivers/staging/iio/dds/ad9834.c b/drivers/staging/iio/dds/ad9834.c
index 51fda6f69815..5e67104fea18 100644
--- a/drivers/staging/iio/dds/ad9834.c
+++ b/drivers/staging/iio/dds/ad9834.c
@@ -77,7 +77,7 @@ static ssize_t ad9834_write(struct device *dev,
 		goto error_ret;
 
 	mutex_lock(&indio_dev->mlock);
-	switch (this_attr->address) {
+	switch ((u32) this_attr->address) {
 	case AD9834_REG_FREQ0:
 	case AD9834_REG_FREQ1:
 		ret = ad9834_write_frequency(st, this_attr->address, val);
@@ -153,7 +153,7 @@ static ssize_t ad9834_store_wavetype(struct device *dev,
 
 	mutex_lock(&indio_dev->mlock);
 
-	switch (this_attr->address) {
+	switch ((u32) this_attr->address) {
 	case 0:
 		if (sysfs_streq(buf, "sine")) {
 			st->control &= ~AD9834_MODE;
@@ -435,11 +435,11 @@ static const struct spi_device_id ad9834_id[] = {
 	{"ad9838", ID_AD9838},
 	{}
 };
+MODULE_DEVICE_TABLE(spi, ad9834_id);
 
 static struct spi_driver ad9834_driver = {
 	.driver = {
 		.name	= "ad9834",
-		.bus	= &spi_bus_type,
 		.owner	= THIS_MODULE,
 	},
 	.probe		= ad9834_probe,
@@ -451,4 +451,3 @@ module_spi_driver(ad9834_driver);
 MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
 MODULE_DESCRIPTION("Analog Devices AD9833/AD9834/AD9837/AD9838 DDS");
 MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("spi:ad9834");
diff --git a/drivers/staging/iio/dds/ad9850.c b/drivers/staging/iio/dds/ad9850.c
index f9c96afcb996..f4f731bb2191 100644
--- a/drivers/staging/iio/dds/ad9850.c
+++ b/drivers/staging/iio/dds/ad9850.c
@@ -134,3 +134,4 @@ module_spi_driver(ad9850_driver);
 MODULE_AUTHOR("Cliff Cai");
 MODULE_DESCRIPTION("Analog Devices ad9850 driver");
 MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("spi:" DRV_NAME);
diff --git a/drivers/staging/iio/dds/ad9852.c b/drivers/staging/iio/dds/ad9852.c
index 9fc73fdc9c3b..554266c615a8 100644
--- a/drivers/staging/iio/dds/ad9852.c
+++ b/drivers/staging/iio/dds/ad9852.c
@@ -285,3 +285,4 @@ module_spi_driver(ad9852_driver);
 MODULE_AUTHOR("Cliff Cai");
 MODULE_DESCRIPTION("Analog Devices ad9852 driver");
 MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("spi:" DRV_NAME);
diff --git a/drivers/staging/iio/dds/ad9910.c b/drivers/staging/iio/dds/ad9910.c
index 57046b03121f..3985766d6f87 100644
--- a/drivers/staging/iio/dds/ad9910.c
+++ b/drivers/staging/iio/dds/ad9910.c
@@ -418,3 +418,4 @@ module_spi_driver(ad9910_driver);
 MODULE_AUTHOR("Cliff Cai");
 MODULE_DESCRIPTION("Analog Devices ad9910 driver");
 MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("spi:" DRV_NAME);
diff --git a/drivers/staging/iio/dds/ad9951.c b/drivers/staging/iio/dds/ad9951.c
index d29130e9acdf..4d150048002a 100644
--- a/drivers/staging/iio/dds/ad9951.c
+++ b/drivers/staging/iio/dds/ad9951.c
@@ -229,3 +229,4 @@ module_spi_driver(ad9951_driver);
 MODULE_AUTHOR("Cliff Cai");
 MODULE_DESCRIPTION("Analog Devices ad9951 driver");
 MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("spi:" DRV_NAME);
diff --git a/drivers/staging/iio/events.h b/drivers/staging/iio/events.h
new file mode 100644
index 000000000000..bfb63400fa60
--- /dev/null
+++ b/drivers/staging/iio/events.h
@@ -0,0 +1,103 @@
+/* The industrial I/O - event passing to userspace
+ *
+ * Copyright (c) 2008-2011 Jonathan Cameron
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+#ifndef _IIO_EVENTS_H_
+#define _IIO_EVENTS_H_
+
+#include <linux/ioctl.h>
+#include <linux/types.h>
+#include "types.h"
+
+/**
+ * struct iio_event_data - The actual event being pushed to userspace
+ * @id:		event identifier
+ * @timestamp:	best estimate of time of event occurrence (often from
+ *		the interrupt handler)
+ */
+struct iio_event_data {
+	__u64	id;
+	__s64	timestamp;
+};
+
+#define IIO_GET_EVENT_FD_IOCTL _IOR('i', 0x90, int)
+
+enum iio_event_type {
+	IIO_EV_TYPE_THRESH,
+	IIO_EV_TYPE_MAG,
+	IIO_EV_TYPE_ROC,
+	IIO_EV_TYPE_THRESH_ADAPTIVE,
+	IIO_EV_TYPE_MAG_ADAPTIVE,
+};
+
+enum iio_event_direction {
+	IIO_EV_DIR_EITHER,
+	IIO_EV_DIR_RISING,
+	IIO_EV_DIR_FALLING,
+};
+
+/**
+ * IIO_EVENT_CODE() - create event identifier
+ * @chan_type:	Type of the channel. Should be one of enum iio_chan_type.
+ * @diff:	Whether the event is for an differential channel or not.
+ * @modifier:	Modifier for the channel. Should be one of enum iio_modifier.
+ * @direction:	Direction of the event. One of enum iio_event_direction.
+ * @type:	Type of the event. Should be one enum iio_event_type.
+ * @chan:	Channel number for non-differential channels.
+ * @chan1:	First channel number for differential channels.
+ * @chan2:	Second channel number for differential channels.
+ */
+
+#define IIO_EVENT_CODE(chan_type, diff, modifier, direction,		\
+		       type, chan, chan1, chan2)			\
+	(((u64)type << 56) | ((u64)diff << 55) |			\
+	 ((u64)direction << 48) | ((u64)modifier << 40) |		\
+	 ((u64)chan_type << 32) | (((u16)chan2) << 16) | ((u16)chan1) | \
+	 ((u16)chan))
+
+
+#define IIO_EV_DIR_MAX 4
+#define IIO_EV_BIT(type, direction)			\
+	(1 << (type*IIO_EV_DIR_MAX + direction))
+
+/**
+ * IIO_MOD_EVENT_CODE() - create event identifier for modified channels
+ * @chan_type:	Type of the channel. Should be one of enum iio_chan_type.
+ * @number:	Channel number.
+ * @modifier:	Modifier for the channel. Should be one of enum iio_modifier.
+ * @type:	Type of the event. Should be one enum iio_event_type.
+ * @direction:	Direction of the event. One of enum iio_event_direction.
+ */
+
+#define IIO_MOD_EVENT_CODE(chan_type, number, modifier,		\
+			   type, direction)				\
+	IIO_EVENT_CODE(chan_type, 0, modifier, direction, type, number, 0, 0)
+
+/**
+ * IIO_UNMOD_EVENT_CODE() - create event identifier for unmodified channels
+ * @chan_type:	Type of the channel. Should be one of enum iio_chan_type.
+ * @number:	Channel number.
+ * @type:	Type of the event. Should be one enum iio_event_type.
+ * @direction:	Direction of the event. One of enum iio_event_direction.
+ */
+
+#define IIO_UNMOD_EVENT_CODE(chan_type, number, type, direction)	\
+	IIO_EVENT_CODE(chan_type, 0, 0, direction, type, number, 0, 0)
+
+#define IIO_EVENT_CODE_EXTRACT_TYPE(mask) ((mask >> 56) & 0xFF)
+
+#define IIO_EVENT_CODE_EXTRACT_DIR(mask) ((mask >> 48) & 0xCF)
+
+#define IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(mask) ((mask >> 32) & 0xFF)
+
+/* Event code number extraction depends on which type of event we have.
+ * Perhaps review this function in the future*/
+#define IIO_EVENT_CODE_EXTRACT_NUM(mask) ((__s16)(mask & 0xFFFF))
+
+#define IIO_EVENT_CODE_EXTRACT_MODIFIER(mask) ((mask >> 40) & 0xFF)
+
+#endif
diff --git a/drivers/staging/iio/gyro/Kconfig b/drivers/staging/iio/gyro/Kconfig
index 22aea5b4e61d..ea295b25308c 100644
--- a/drivers/staging/iio/gyro/Kconfig
+++ b/drivers/staging/iio/gyro/Kconfig
@@ -37,11 +37,11 @@ config ADIS16260
 	  will be called adis16260.
 
 config ADXRS450
-	tristate "Analog Devices ADXRS450 Digital Output Gyroscope SPI driver"
+	tristate "Analog Devices ADXRS450/3 Digital Output Gyroscope SPI driver"
 	depends on SPI
 	help
-	  Say yes here to build support for Analog Devices ADXRS450 programmable
-	  digital output gyroscope.
+	  Say yes here to build support for Analog Devices ADXRS450 and ADXRS453
+	  programmable digital output gyroscope.
 
 	  This driver can also be built as a module.  If so, the module
 	  will be called adxrs450.
diff --git a/drivers/staging/iio/gyro/adis16060_core.c b/drivers/staging/iio/gyro/adis16060_core.c
index ff1b5a82b3d6..c0ca7093e0ed 100644
--- a/drivers/staging/iio/gyro/adis16060_core.c
+++ b/drivers/staging/iio/gyro/adis16060_core.c
@@ -98,11 +98,11 @@ static int adis16060_read_raw(struct iio_dev *indio_dev,
 		mutex_unlock(&indio_dev->mlock);
 		*val = tval;
 		return IIO_VAL_INT;
-	case (1 << IIO_CHAN_INFO_OFFSET_SEPARATE):
+	case IIO_CHAN_INFO_OFFSET:
 		*val = -7;
 		*val2 = 461117;
 		return IIO_VAL_INT_PLUS_MICRO;
-	case (1 << IIO_CHAN_INFO_SCALE_SEPARATE):
+	case IIO_CHAN_INFO_SCALE:
 		*val = 0;
 		*val2 = 34000;
 		return IIO_VAL_INT_PLUS_MICRO;
@@ -136,8 +136,8 @@ static const struct iio_chan_spec adis16060_channels[] = {
 		.type = IIO_TEMP,
 		.indexed = 1,
 		.channel = 0,
-		.info_mask = (1 << IIO_CHAN_INFO_OFFSET_SEPARATE) |
-		(1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+		.info_mask = IIO_CHAN_INFO_OFFSET_SEPARATE_BIT |
+		IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 		.address = ADIS16060_TEMP_OUT,
 	}
 };
diff --git a/drivers/staging/iio/gyro/adis16080_core.c b/drivers/staging/iio/gyro/adis16080_core.c
index 9405f2d368ee..1815490db8b4 100644
--- a/drivers/staging/iio/gyro/adis16080_core.c
+++ b/drivers/staging/iio/gyro/adis16080_core.c
@@ -194,3 +194,4 @@ module_spi_driver(adis16080_driver);
 MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
 MODULE_DESCRIPTION("Analog Devices ADIS16080/100 Yaw Rate Gyroscope Driver");
 MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("spi:adis16080");
diff --git a/drivers/staging/iio/gyro/adis16130_core.c b/drivers/staging/iio/gyro/adis16130_core.c
index c9aaca9631f4..947eb86f05d8 100644
--- a/drivers/staging/iio/gyro/adis16130_core.c
+++ b/drivers/staging/iio/gyro/adis16130_core.c
@@ -173,3 +173,4 @@ module_spi_driver(adis16130_driver);
 MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
 MODULE_DESCRIPTION("Analog Devices ADIS16130 High Precision Angular Rate");
 MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("spi:adis16130");
diff --git a/drivers/staging/iio/gyro/adis16260_core.c b/drivers/staging/iio/gyro/adis16260_core.c
index 886dddf867ef..8f6af47e9559 100644
--- a/drivers/staging/iio/gyro/adis16260_core.c
+++ b/drivers/staging/iio/gyro/adis16260_core.c
@@ -20,7 +20,7 @@
 
 #include "../iio.h"
 #include "../sysfs.h"
-#include "../buffer_generic.h"
+#include "../buffer.h"
 
 #include "adis16260.h"
 
@@ -390,9 +390,9 @@ enum adis16260_channel {
 #define ADIS16260_GYRO_CHANNEL_SET(axis, mod)				\
 	struct iio_chan_spec adis16260_channels_##axis[] = {		\
 		IIO_CHAN(IIO_ANGL_VEL, 1, 0, 0, NULL, 0, mod,		\
-			 (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE) |	\
-			 (1 << IIO_CHAN_INFO_CALIBSCALE_SEPARATE) |	\
-			 (1 << IIO_CHAN_INFO_SCALE_SEPARATE),		\
+			 IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT |	\
+			 IIO_CHAN_INFO_CALIBSCALE_SEPARATE_BIT |	\
+			 IIO_CHAN_INFO_SCALE_SEPARATE_BIT,		\
 			 gyro, ADIS16260_SCAN_GYRO,			\
 			 IIO_ST('s', 14, 16, 0), 0),			\
 		IIO_CHAN(IIO_ANGL, 1, 0, 0, NULL, 0, mod,		\
@@ -400,16 +400,16 @@ enum adis16260_channel {
 			 angle, ADIS16260_SCAN_ANGL,			\
 			 IIO_ST('u', 14, 16, 0), 0),			\
 		IIO_CHAN(IIO_TEMP, 0, 1, 0, NULL, 0, 0,			\
-			 (1 << IIO_CHAN_INFO_OFFSET_SEPARATE) |		\
-			 (1 << IIO_CHAN_INFO_SCALE_SEPARATE),		\
+			 IIO_CHAN_INFO_OFFSET_SEPARATE_BIT |		\
+			 IIO_CHAN_INFO_SCALE_SEPARATE_BIT,		\
 			 temp, ADIS16260_SCAN_TEMP,			\
 			 IIO_ST('u', 12, 16, 0), 0),			\
 		IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, "supply", 0, 0,		\
-			 (1 << IIO_CHAN_INFO_SCALE_SEPARATE),		\
+			 IIO_CHAN_INFO_SCALE_SEPARATE_BIT,		\
 			 in_supply, ADIS16260_SCAN_SUPPLY,		\
 			 IIO_ST('u', 12, 16, 0), 0),			\
 		IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, NULL, 1, 0,		\
-			 (1 << IIO_CHAN_INFO_SCALE_SEPARATE),		\
+			 IIO_CHAN_INFO_SCALE_SEPARATE_BIT,		\
 			 in_aux, ADIS16260_SCAN_AUX_ADC,		\
 			 IIO_ST('u', 12, 16, 0), 0),			\
 		IIO_CHAN_SOFT_TIMESTAMP(5)				\
@@ -464,8 +464,7 @@ static int adis16260_read_raw(struct iio_dev *indio_dev,
 		*val = val16;
 		mutex_unlock(&indio_dev->mlock);
 		return IIO_VAL_INT;
-	case (1 << IIO_CHAN_INFO_SCALE_SEPARATE):
-	case (1 << IIO_CHAN_INFO_SCALE_SHARED):
+	case IIO_CHAN_INFO_SCALE:
 		switch (chan->type) {
 		case IIO_ANGL_VEL:
 			*val = 0;
@@ -489,10 +488,10 @@ static int adis16260_read_raw(struct iio_dev *indio_dev,
 			return -EINVAL;
 		}
 		break;
-	case (1 << IIO_CHAN_INFO_OFFSET_SEPARATE):
+	case IIO_CHAN_INFO_OFFSET:
 		*val = 25;
 		return IIO_VAL_INT;
-	case (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE):
+	case IIO_CHAN_INFO_CALIBBIAS:
 		switch (chan->type) {
 		case IIO_ANGL_VEL:
 			bits = 12;
@@ -512,7 +511,7 @@ static int adis16260_read_raw(struct iio_dev *indio_dev,
 		*val = val16;
 		mutex_unlock(&indio_dev->mlock);
 		return IIO_VAL_INT;
-	case (1 << IIO_CHAN_INFO_CALIBSCALE_SEPARATE):
+	case IIO_CHAN_INFO_CALIBSCALE:
 		switch (chan->type) {
 		case IIO_ANGL_VEL:
 			bits = 12;
@@ -544,11 +543,11 @@ static int adis16260_write_raw(struct iio_dev *indio_dev,
 	s16 val16;
 	u8 addr;
 	switch (mask) {
-	case (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE):
+	case IIO_CHAN_INFO_CALIBBIAS:
 		val16 = val & ((1 << bits) - 1);
 		addr = adis16260_addresses[chan->address][1];
 		return adis16260_spi_write_reg_16(indio_dev, addr, val16);
-	case (1 << IIO_CHAN_INFO_CALIBSCALE_SEPARATE):
+	case IIO_CHAN_INFO_CALIBSCALE:
 		val16 = val & ((1 << bits) - 1);
 		addr = adis16260_addresses[chan->address][2];
 		return adis16260_spi_write_reg_16(indio_dev, addr, val16);
@@ -633,11 +632,16 @@ static int __devinit adis16260_probe(struct spi_device *spi)
 	}
 	if (indio_dev->buffer) {
 		/* Set default scan mode */
-		iio_scan_mask_set(indio_dev->buffer, ADIS16260_SCAN_SUPPLY);
-		iio_scan_mask_set(indio_dev->buffer, ADIS16260_SCAN_GYRO);
-		iio_scan_mask_set(indio_dev->buffer, ADIS16260_SCAN_AUX_ADC);
-		iio_scan_mask_set(indio_dev->buffer, ADIS16260_SCAN_TEMP);
-		iio_scan_mask_set(indio_dev->buffer, ADIS16260_SCAN_ANGL);
+		iio_scan_mask_set(indio_dev, indio_dev->buffer,
+				  ADIS16260_SCAN_SUPPLY);
+		iio_scan_mask_set(indio_dev, indio_dev->buffer,
+				  ADIS16260_SCAN_GYRO);
+		iio_scan_mask_set(indio_dev, indio_dev->buffer,
+				  ADIS16260_SCAN_AUX_ADC);
+		iio_scan_mask_set(indio_dev, indio_dev->buffer,
+				  ADIS16260_SCAN_TEMP);
+		iio_scan_mask_set(indio_dev, indio_dev->buffer,
+				  ADIS16260_SCAN_ANGL);
 	}
 	if (spi->irq) {
 		ret = adis16260_probe_trigger(indio_dev);
@@ -701,6 +705,7 @@ static const struct spi_device_id adis16260_id[] = {
 	{"adis16251", 1},
 	{}
 };
+MODULE_DEVICE_TABLE(spi, adis16260_id);
 
 static struct spi_driver adis16260_driver = {
 	.driver = {
diff --git a/drivers/staging/iio/gyro/adis16260_ring.c b/drivers/staging/iio/gyro/adis16260_ring.c
index 52a9e784e7c8..699a6152c409 100644
--- a/drivers/staging/iio/gyro/adis16260_ring.c
+++ b/drivers/staging/iio/gyro/adis16260_ring.c
@@ -74,9 +74,10 @@ static irqreturn_t adis16260_trigger_handler(int irq, void *p)
 		return -ENOMEM;
 	}
 
-	if (ring->scan_count &&
+	if (!bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength) &&
 	    adis16260_read_ring_data(&indio_dev->dev, st->rx) >= 0)
-		for (; i < ring->scan_count; i++)
+		for (; i < bitmap_weight(indio_dev->active_scan_mask,
+					 indio_dev->masklength); i++)
 			data[i] = be16_to_cpup((__be16 *)&(st->rx[i*2]));
 
 	/* Guaranteed to be aligned with 8 byte boundary */
@@ -116,10 +117,8 @@ int adis16260_configure_ring(struct iio_dev *indio_dev)
 	indio_dev->buffer = ring;
 	/* Effectively select the ring buffer implementation */
 	ring->access = &ring_sw_access_funcs;
-	ring->bpe = 2;
 	ring->scan_timestamp = true;
-	ring->setup_ops = &adis16260_ring_setup_ops;
-	ring->owner = THIS_MODULE;
+	indio_dev->setup_ops = &adis16260_ring_setup_ops;
 
 	indio_dev->pollfunc = iio_alloc_pollfunc(&iio_pollfunc_store_time,
 						 &adis16260_trigger_handler,
diff --git a/drivers/staging/iio/gyro/adxrs450.h b/drivers/staging/iio/gyro/adxrs450.h
index b6b682876406..af0c870100b6 100644
--- a/drivers/staging/iio/gyro/adxrs450.h
+++ b/drivers/staging/iio/gyro/adxrs450.h
@@ -39,6 +39,11 @@
 
 #define ADXRS450_GET_ST(a)	((a >> 26) & 0x3)
 
+enum {
+	ID_ADXRS450,
+	ID_ADXRS453,
+};
+
 /**
  * struct adxrs450_state - device instance specific data
  * @us:			actual spi_device
diff --git a/drivers/staging/iio/gyro/adxrs450_core.c b/drivers/staging/iio/gyro/adxrs450_core.c
index 70fd468b6850..15e2496f70c8 100644
--- a/drivers/staging/iio/gyro/adxrs450_core.c
+++ b/drivers/staging/iio/gyro/adxrs450_core.c
@@ -1,5 +1,5 @@
 /*
- * ADXRS450 Digital Output Gyroscope Driver
+ * ADXRS450/ADXRS453 Digital Output Gyroscope Driver
  *
  * Copyright 2011 Analog Devices Inc.
  *
@@ -243,7 +243,7 @@ static int adxrs450_write_raw(struct iio_dev *indio_dev,
 {
 	int ret;
 	switch (mask) {
-	case (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE):
+	case IIO_CHAN_INFO_CALIBBIAS:
 		ret = adxrs450_spi_write_reg_16(indio_dev,
 						ADXRS450_DNC1,
 						val & 0x3FF);
@@ -263,7 +263,7 @@ static int adxrs450_read_raw(struct iio_dev *indio_dev,
 {
 	int ret;
 	s16 t;
-	u16 ut;
+
 	switch (mask) {
 	case 0:
 		switch (chan->type) {
@@ -276,10 +276,10 @@ static int adxrs450_read_raw(struct iio_dev *indio_dev,
 			break;
 		case IIO_TEMP:
 			ret = adxrs450_spi_read_reg_16(indio_dev,
-						       ADXRS450_TEMP1, &ut);
+						       ADXRS450_TEMP1, &t);
 			if (ret)
 				break;
-			*val = ut;
+			*val = (t >> 6) + 225;
 			ret = IIO_VAL_INT;
 			break;
 		default:
@@ -287,13 +287,34 @@ static int adxrs450_read_raw(struct iio_dev *indio_dev,
 			break;
 		}
 		break;
-	case (1 << IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW_SEPARATE):
+	case IIO_CHAN_INFO_SCALE:
+		switch (chan->type) {
+		case IIO_ANGL_VEL:
+			*val = 0;
+			*val2 = 218166;
+			return IIO_VAL_INT_PLUS_NANO;
+		case IIO_TEMP:
+			*val = 200;
+			*val2 = 0;
+			return IIO_VAL_INT;
+		default:
+			return -EINVAL;
+		}
+		break;
+	case IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW:
 		ret = adxrs450_spi_read_reg_16(indio_dev, ADXRS450_QUAD1, &t);
 		if (ret)
 			break;
 		*val = t;
 		ret = IIO_VAL_INT;
 		break;
+	case IIO_CHAN_INFO_CALIBBIAS:
+		ret = adxrs450_spi_read_reg_16(indio_dev, ADXRS450_DNC1, &t);
+		if (ret)
+			break;
+		*val = t;
+		ret = IIO_VAL_INT;
+		break;
 	default:
 		ret = -EINVAL;
 		break;
@@ -302,18 +323,36 @@ static int adxrs450_read_raw(struct iio_dev *indio_dev,
 	return ret;
 }
 
-static const struct iio_chan_spec adxrs450_channels[] = {
-	{
-		.type = IIO_ANGL_VEL,
-		.modified = 1,
-		.channel2 = IIO_MOD_Z,
-		.info_mask = (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE) |
-		(1 << IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW_SEPARATE)
-	}, {
-		.type = IIO_TEMP,
-		.indexed = 1,
-		.channel = 0,
-	}
+static const struct iio_chan_spec adxrs450_channels[2][2] = {
+	[ID_ADXRS450] = {
+		{
+			.type = IIO_ANGL_VEL,
+			.modified = 1,
+			.channel2 = IIO_MOD_Z,
+			.info_mask = IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT |
+			IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW_SEPARATE_BIT |
+			IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
+		}, {
+			.type = IIO_TEMP,
+			.indexed = 1,
+			.channel = 0,
+			.info_mask = IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
+		}
+	},
+	[ID_ADXRS453] = {
+		{
+			.type = IIO_ANGL_VEL,
+			.modified = 1,
+			.channel2 = IIO_MOD_Z,
+			.info_mask = IIO_CHAN_INFO_SCALE_SEPARATE_BIT |
+			IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW_SEPARATE_BIT,
+		}, {
+			.type = IIO_TEMP,
+			.indexed = 1,
+			.channel = 0,
+			.info_mask = IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
+		}
+	},
 };
 
 static const struct iio_info adxrs450_info = {
@@ -343,7 +382,8 @@ static int __devinit adxrs450_probe(struct spi_device *spi)
 	indio_dev->dev.parent = &spi->dev;
 	indio_dev->info = &adxrs450_info;
 	indio_dev->modes = INDIO_DIRECT_MODE;
-	indio_dev->channels = adxrs450_channels;
+	indio_dev->channels =
+		adxrs450_channels[spi_get_device_id(spi)->driver_data];
 	indio_dev->num_channels = ARRAY_SIZE(adxrs450_channels);
 	indio_dev->name = spi->dev.driver->name;
 
@@ -373,6 +413,13 @@ static int adxrs450_remove(struct spi_device *spi)
 	return 0;
 }
 
+static const struct spi_device_id adxrs450_id[] = {
+	{"adxrs450", ID_ADXRS450},
+	{"adxrs453", ID_ADXRS453},
+	{}
+};
+MODULE_DEVICE_TABLE(spi, adxrs450_id);
+
 static struct spi_driver adxrs450_driver = {
 	.driver = {
 		.name = "adxrs450",
@@ -380,9 +427,10 @@ static struct spi_driver adxrs450_driver = {
 	},
 	.probe = adxrs450_probe,
 	.remove = __devexit_p(adxrs450_remove),
+	.id_table	= adxrs450_id,
 };
 module_spi_driver(adxrs450_driver);
 
 MODULE_AUTHOR("Cliff Cai <cliff.cai@xxxxxxxxxx>");
-MODULE_DESCRIPTION("Analog Devices ADXRS450 Gyroscope SPI driver");
+MODULE_DESCRIPTION("Analog Devices ADXRS450/ADXRS453 Gyroscope SPI driver");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/iio/iio.h b/drivers/staging/iio/iio.h
index f3d88cd7e8a0..be6ced31f65e 100644
--- a/drivers/staging/iio/iio.h
+++ b/drivers/staging/iio/iio.h
@@ -7,13 +7,12 @@
  * under the terms of the GNU General Public License version 2 as published by
  * the Free Software Foundation.
  */
-
 #ifndef _INDUSTRIAL_IO_H_
 #define _INDUSTRIAL_IO_H_
 
 #include <linux/device.h>
 #include <linux/cdev.h>
-
+#include "types.h"
 /* IIO TODO LIST */
 /*
  * Provide means of adjusting timer accuracy.
@@ -25,62 +24,64 @@ enum iio_data_type {
 	IIO_PROCESSED,
 };
 
-enum iio_chan_type {
-	/* real channel types */
-	IIO_VOLTAGE,
-	IIO_CURRENT,
-	IIO_POWER,
-	IIO_ACCEL,
-	IIO_ANGL_VEL,
-	IIO_MAGN,
-	IIO_LIGHT,
-	IIO_INTENSITY,
-	IIO_PROXIMITY,
-	IIO_TEMP,
-	IIO_INCLI,
-	IIO_ROT,
-	IIO_ANGL,
-	IIO_TIMESTAMP,
-	IIO_CAPACITANCE,
-};
-
-enum iio_modifier {
-	IIO_NO_MOD,
-	IIO_MOD_X,
-	IIO_MOD_Y,
-	IIO_MOD_Z,
-	IIO_MOD_X_AND_Y,
-	IIO_MOD_X_ANX_Z,
-	IIO_MOD_Y_AND_Z,
-	IIO_MOD_X_AND_Y_AND_Z,
-	IIO_MOD_X_OR_Y,
-	IIO_MOD_X_OR_Z,
-	IIO_MOD_Y_OR_Z,
-	IIO_MOD_X_OR_Y_OR_Z,
-	IIO_MOD_LIGHT_BOTH,
-	IIO_MOD_LIGHT_IR,
-};
-
 /* Could add the raw attributes as well - allowing buffer only devices */
 enum iio_chan_info_enum {
-	IIO_CHAN_INFO_SCALE_SHARED,
-	IIO_CHAN_INFO_SCALE_SEPARATE,
-	IIO_CHAN_INFO_OFFSET_SHARED,
-	IIO_CHAN_INFO_OFFSET_SEPARATE,
-	IIO_CHAN_INFO_CALIBSCALE_SHARED,
-	IIO_CHAN_INFO_CALIBSCALE_SEPARATE,
-	IIO_CHAN_INFO_CALIBBIAS_SHARED,
-	IIO_CHAN_INFO_CALIBBIAS_SEPARATE,
-	IIO_CHAN_INFO_PEAK_SHARED,
-	IIO_CHAN_INFO_PEAK_SEPARATE,
-	IIO_CHAN_INFO_PEAK_SCALE_SHARED,
-	IIO_CHAN_INFO_PEAK_SCALE_SEPARATE,
-	IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW_SHARED,
-	IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW_SEPARATE,
-	IIO_CHAN_INFO_AVERAGE_RAW_SHARED,
-	IIO_CHAN_INFO_AVERAGE_RAW_SEPARATE,
+	/* 0 is reserverd for raw attributes */
+	IIO_CHAN_INFO_SCALE = 1,
+	IIO_CHAN_INFO_OFFSET,
+	IIO_CHAN_INFO_CALIBSCALE,
+	IIO_CHAN_INFO_CALIBBIAS,
+	IIO_CHAN_INFO_PEAK,
+	IIO_CHAN_INFO_PEAK_SCALE,
+	IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW,
+	IIO_CHAN_INFO_AVERAGE_RAW,
+	IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY,
 };
 
+#define IIO_CHAN_INFO_SHARED_BIT(type) BIT(type*2)
+#define IIO_CHAN_INFO_SEPARATE_BIT(type) BIT(type*2 + 1)
+
+#define IIO_CHAN_INFO_SCALE_SEPARATE_BIT		\
+	IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_SCALE)
+#define IIO_CHAN_INFO_SCALE_SHARED_BIT			\
+	IIO_CHAN_INFO_SHARED_BIT(IIO_CHAN_INFO_SCALE)
+#define IIO_CHAN_INFO_OFFSET_SEPARATE_BIT			\
+	IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_OFFSET)
+#define IIO_CHAN_INFO_OFFSET_SHARED_BIT			\
+	IIO_CHAN_INFO_SHARED_BIT(IIO_CHAN_INFO_OFFSET)
+#define IIO_CHAN_INFO_CALIBSCALE_SEPARATE_BIT			\
+	IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_CALIBSCALE)
+#define IIO_CHAN_INFO_CALIBSCALE_SHARED_BIT			\
+	IIO_CHAN_INFO_SHARED_BIT(IIO_CHAN_INFO_CALIBSCALE)
+#define IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT			\
+	IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_CALIBBIAS)
+#define IIO_CHAN_INFO_CALIBBIAS_SHARED_BIT			\
+	IIO_CHAN_INFO_SHARED_BIT(IIO_CHAN_INFO_CALIBBIAS)
+#define IIO_CHAN_INFO_PEAK_SEPARATE_BIT			\
+	IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_PEAK)
+#define IIO_CHAN_INFO_PEAK_SHARED_BIT			\
+	IIO_CHAN_INFO_SHARED_BIT(IIO_CHAN_INFO_PEAK)
+#define IIO_CHAN_INFO_PEAKSCALE_SEPARATE_BIT			\
+	IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_PEAKSCALE)
+#define IIO_CHAN_INFO_PEAKSCALE_SHARED_BIT			\
+	IIO_CHAN_INFO_SHARED_BIT(IIO_CHAN_INFO_PEAKSCALE)
+#define IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW_SEPARATE_BIT	\
+	IIO_CHAN_INFO_SEPARATE_BIT(				\
+		IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW)
+#define IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW_SHARED_BIT	\
+	IIO_CHAN_INFO_SHARED_BIT(				\
+		IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW)
+#define IIO_CHAN_INFO_AVERAGE_RAW_SEPARATE_BIT			\
+	IIO_CHAN_INFO_SEPARATE_BIT(IIO_CHAN_INFO_AVERAGE_RAW)
+#define IIO_CHAN_INFO_AVERAGE_RAW_SHARED_BIT			\
+	IIO_CHAN_INFO_SHARED_BIT(IIO_CHAN_INFO_AVERAGE_RAW)
+#define IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY_SHARED_BIT \
+	IIO_CHAN_INFO_SHARED_BIT(			       \
+		IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY)
+#define IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY_SEPARATE_BIT \
+	IIO_CHAN_INFO_SEPARATE_BIT(			       \
+		IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY)
+
 enum iio_endian {
 	IIO_CPU,
 	IIO_BE,
@@ -109,6 +110,10 @@ enum iio_endian {
  * @extend_name:	Allows labeling of channel attributes with an
  *			informative name. Note this has no effect codes etc,
  *			unlike modifiers.
+ * @datasheet_name:	A name used in in kernel mapping of channels. It should
+ *			corrspond to the first name that the channel is referred
+ *			to by in the datasheet (e.g. IND), or the nearest
+ *			possible compound name (e.g. IND-INC).
  * @processed_val:	Flag to specify the data access attribute should be
  *			*_input rather than *_raw.
  * @modified:		Does a modifier apply to this channel. What these are
@@ -137,6 +142,7 @@ struct iio_chan_spec {
 	long			info_mask;
 	long			event_mask;
 	char			*extend_name;
+	const char		*datasheet_name;
 	unsigned		processed_val:1;
 	unsigned		modified:1;
 	unsigned		indexed:1;
@@ -261,7 +267,23 @@ struct iio_info {
 				 int val);
 	int (*validate_trigger)(struct iio_dev *indio_dev,
 				struct iio_trigger *trig);
+	int (*update_scan_mode)(struct iio_dev *indio_dev,
+				const unsigned long *scan_mask);
+};
 
+/**
+ * struct iio_buffer_setup_ops - buffer setup related callbacks
+ * @preenable:		[DRIVER] function to run prior to marking buffer enabled
+ * @postenable:		[DRIVER] function to run after marking buffer enabled
+ * @predisable:		[DRIVER] function to run prior to marking buffer
+ *			disabled
+ * @postdisable:	[DRIVER] function to run after marking buffer disabled
+ */
+struct iio_buffer_setup_ops {
+	int				(*preenable)(struct iio_dev *);
+	int				(*postenable)(struct iio_dev *);
+	int				(*predisable)(struct iio_dev *);
+	int				(*postdisable)(struct iio_dev *);
 };
 
 /**
@@ -278,6 +300,7 @@ struct iio_info {
  * @available_scan_masks: [DRIVER] optional array of allowed bitmasks
  * @masklength:		[INTERN] the length of the mask established from
  *			channels
+ * @active_scan_mask:	[INTERN] union of all scan masks requested by buffers
  * @trig:		[INTERN] current device trigger (buffer modes)
  * @pollfunc:		[DRIVER] function run on trigger being received
  * @channels:		[DRIVER] channel specification structure table
@@ -290,6 +313,7 @@ struct iio_info {
  * @chrdev:		[INTERN] associated character device
  * @groups:		[INTERN] attribute groups
  * @groupcounter:	[INTERN] index of next attribute group
+ * @flags:		[INTERN] file ops related flags including busy flag.
  **/
 struct iio_dev {
 	int				id;
@@ -305,6 +329,7 @@ struct iio_dev {
 
 	unsigned long			*available_scan_masks;
 	unsigned			masklength;
+	unsigned long			*active_scan_mask;
 	struct iio_trigger		*trig;
 	struct iio_poll_func		*pollfunc;
 
@@ -315,13 +340,24 @@ struct iio_dev {
 	struct attribute_group		chan_attr_group;
 	const char			*name;
 	const struct iio_info		*info;
+	const struct iio_buffer_setup_ops	*setup_ops;
 	struct cdev			chrdev;
 #define IIO_MAX_GROUPS 6
 	const struct attribute_group	*groups[IIO_MAX_GROUPS + 1];
 	int				groupcounter;
+
+	unsigned long			flags;
 };
 
 /**
+ * iio_find_channel_from_si() - get channel from its scan index
+ * @indio_dev:		device
+ * @si:			scan index to match
+ */
+const struct iio_chan_spec
+*iio_find_channel_from_si(struct iio_dev *indio_dev, int si);
+
+/**
  * iio_device_register() - register a device with the IIO subsystem
  * @indio_dev:		Device structure filled by the device driver
  **/
diff --git a/drivers/staging/iio/iio_core.h b/drivers/staging/iio/iio_core.h
index 36159e0dbfc3..107cfb1cbb01 100644
--- a/drivers/staging/iio/iio_core.h
+++ b/drivers/staging/iio/iio_core.h
@@ -33,9 +33,6 @@ int __iio_add_chan_devattr(const char *postfix,
 #ifdef CONFIG_IIO_BUFFER
 struct poll_table_struct;
 
-int iio_chrdev_buffer_open(struct iio_dev *indio_dev);
-void iio_chrdev_buffer_release(struct iio_dev *indio_dev);
-
 unsigned int iio_buffer_poll(struct file *filp,
 			     struct poll_table_struct *wait);
 ssize_t iio_buffer_read_first_n_outer(struct file *filp, char __user *buf,
@@ -47,14 +44,6 @@ ssize_t iio_buffer_read_first_n_outer(struct file *filp, char __user *buf,
 
 #else
 
-static inline int iio_chrdev_buffer_open(struct iio_dev *indio_dev)
-{
-	return -EINVAL;
-}
-
-static inline void iio_chrdev_buffer_release(struct iio_dev *indio_dev)
-{}
-
 #define iio_buffer_poll_addr NULL
 #define iio_buffer_read_first_n_outer_addr NULL
 
diff --git a/drivers/staging/iio/iio_core_trigger.h b/drivers/staging/iio/iio_core_trigger.h
index 523c288b776b..6f7c56fcbe78 100644
--- a/drivers/staging/iio/iio_core_trigger.h
+++ b/drivers/staging/iio/iio_core_trigger.h
@@ -13,8 +13,7 @@
  * iio_device_register_trigger_consumer() - set up an iio_dev to use triggers
  * @indio_dev: iio_dev associated with the device that will consume the trigger
  **/
-
-int iio_device_register_trigger_consumer(struct iio_dev *indio_dev);
+void iio_device_register_trigger_consumer(struct iio_dev *indio_dev);
 
 /**
  * iio_device_unregister_trigger_consumer() - reverse the registration process
diff --git a/drivers/staging/iio/iio_dummy_evgen.c b/drivers/staging/iio/iio_dummy_evgen.c
index da657d10471d..cdbf289bfe2d 100644
--- a/drivers/staging/iio/iio_dummy_evgen.c
+++ b/drivers/staging/iio/iio_dummy_evgen.c
@@ -102,6 +102,10 @@ static int iio_dummy_evgen_create(void)
 int iio_dummy_evgen_get_irq(void)
 {
 	int i, ret = 0;
+
+	if (iio_evgen == NULL)
+		return -ENODEV;
+
 	mutex_lock(&iio_evgen->lock);
 	for (i = 0; i < IIO_EVENTGEN_NO; i++)
 		if (iio_evgen->inuse[i] == false) {
diff --git a/drivers/staging/iio/iio_simple_dummy.c b/drivers/staging/iio/iio_simple_dummy.c
index af0c99236d4f..e3a94572bb40 100644
--- a/drivers/staging/iio/iio_simple_dummy.c
+++ b/drivers/staging/iio/iio_simple_dummy.c
@@ -21,7 +21,8 @@
 
 #include "iio.h"
 #include "sysfs.h"
-#include "buffer_generic.h"
+#include "events.h"
+#include "buffer.h"
 #include "iio_simple_dummy.h"
 
 /*
@@ -76,13 +77,13 @@ static struct iio_chan_spec iio_dummy_channels[] = {
 		 * Offset for userspace to apply prior to scale
 		 * when converting to standard units (microvolts)
 		 */
-		(1 << IIO_CHAN_INFO_OFFSET_SEPARATE) |
+		IIO_CHAN_INFO_OFFSET_SEPARATE_BIT |
 		/*
 		 * in_voltage0_scale
 		 * Multipler for userspace to apply post offset
 		 * when converting to standard units (microvolts)
 		 */
-		(1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+		IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 		/* The ordering of elements in the buffer via an enum */
 		.scan_index = voltage0,
 		.scan_type = { /* Description of storage in buffer */
@@ -117,7 +118,7 @@ static struct iio_chan_spec iio_dummy_channels[] = {
 		 * Shared version of scale - shared by differential
 		 * input channels of type IIO_VOLTAGE.
 		 */
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		.scan_index = diffvoltage1m2,
 		.scan_type = { /* Description of storage in buffer */
 			.sign = 's', /* signed */
@@ -134,7 +135,7 @@ static struct iio_chan_spec iio_dummy_channels[] = {
 		.channel = 3,
 		.channel2 = 4,
 		.info_mask =
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		.scan_index = diffvoltage3m4,
 		.scan_type = {
 			.sign = 's',
@@ -159,7 +160,7 @@ static struct iio_chan_spec iio_dummy_channels[] = {
 		 * seeing the readings. Typically part of hardware
 		 * calibration.
 		 */
-		(1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE),
+		IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT,
 		.scan_index = accelx,
 		.scan_type = { /* Description of storage in buffer */
 			.sign = 's', /* signed */
@@ -228,29 +229,32 @@ static int iio_dummy_read_raw(struct iio_dev *indio_dev,
 			break;
 		}
 		break;
-	case (1 << IIO_CHAN_INFO_OFFSET_SEPARATE):
+	case IIO_CHAN_INFO_OFFSET:
 		/* only single ended adc -> 7 */
 		*val = 7;
 		ret = IIO_VAL_INT;
 		break;
-	case (1 << IIO_CHAN_INFO_SCALE_SEPARATE):
-		/* only single ended adc -> 0.001333 */
-		*val = 0;
-		*val2 = 1333;
-		ret = IIO_VAL_INT_PLUS_MICRO;
-		break;
-	case (1 << IIO_CHAN_INFO_SCALE_SHARED):
-		/* all differential adc channels -> 0.000001344 */
-		*val = 0;
-		*val2 = 1344;
-		ret = IIO_VAL_INT_PLUS_NANO;
+	case IIO_CHAN_INFO_SCALE:
+		switch (chan->differential) {
+		case 0:
+			/* only single ended adc -> 0.001333 */
+			*val = 0;
+			*val2 = 1333;
+			ret = IIO_VAL_INT_PLUS_MICRO;
+			break;
+		case 1:
+			/* all differential adc channels -> 0.000001344 */
+			*val = 0;
+			*val2 = 1344;
+			ret = IIO_VAL_INT_PLUS_NANO;
+		}
 		break;
-	case (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE):
+	case IIO_CHAN_INFO_CALIBBIAS:
 		/* only the acceleration axis - read from cache */
 		*val = st->accel_calibbias;
 		ret = IIO_VAL_INT;
 		break;
-	case (1 << IIO_CHAN_INFO_CALIBSCALE_SEPARATE):
+	case IIO_CHAN_INFO_CALIBSCALE:
 		*val = st->accel_calibscale->val;
 		*val2 = st->accel_calibscale->val2;
 		ret = IIO_VAL_INT_PLUS_MICRO;
@@ -295,7 +299,7 @@ static int iio_dummy_write_raw(struct iio_dev *indio_dev,
 		st->dac_val = val;
 		mutex_unlock(&st->lock);
 		return 0;
-	case (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE):
+	case IIO_CHAN_INFO_CALIBBIAS:
 		mutex_lock(&st->lock);
 		/* Compare against table - hard matching here */
 		for (i = 0; i < ARRAY_SIZE(dummy_scales); i++)
@@ -514,7 +518,8 @@ static __init int iio_dummy_init(void)
 		return -EINVAL;
 	}
 	/* Fake a bus */
-	iio_dummy_devs = kzalloc(sizeof(*iio_dummy_devs)*instances, GFP_KERNEL);
+	iio_dummy_devs = kcalloc(instances, sizeof(*iio_dummy_devs),
+				 GFP_KERNEL);
 	/* Here we have no actual device so call probe */
 	for (i = 0; i < instances; i++) {
 		ret = iio_dummy_probe(i);
diff --git a/drivers/staging/iio/iio_simple_dummy_buffer.c b/drivers/staging/iio/iio_simple_dummy_buffer.c
index edad0e7b4f4d..d6a1c0e82a5b 100644
--- a/drivers/staging/iio/iio_simple_dummy_buffer.c
+++ b/drivers/staging/iio/iio_simple_dummy_buffer.c
@@ -57,7 +57,7 @@ static irqreturn_t iio_simple_dummy_trigger_h(int irq, void *p)
 	if (data == NULL)
 		return -ENOMEM;
 
-	if (buffer->scan_count) {
+	if (!bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength)) {
 		/*
 		 * Three common options here:
 		 * hardware scans: certain combinations of channels make
@@ -75,7 +75,10 @@ static irqreturn_t iio_simple_dummy_trigger_h(int irq, void *p)
 		 * in the constant table fakedata.
 		 */
 		int i, j;
-		for (i = 0, j = 0; i < buffer->scan_count; i++) {
+		for (i = 0, j = 0;
+		     i < bitmap_weight(indio_dev->active_scan_mask,
+				       indio_dev->masklength);
+		     i++) {
 			j = find_next_bit(buffer->scan_mask,
 					  indio_dev->masklength, j + 1);
 			/* random access read form the 'device' */
@@ -142,8 +145,6 @@ int iio_simple_dummy_configure_buffer(struct iio_dev *indio_dev)
 	/* Tell the core how to access the buffer */
 	buffer->access = &kfifo_access_funcs;
 
-	/* Number of bytes per element */
-	buffer->bpe = 2;
 	/* Enable timestamps by default */
 	buffer->scan_timestamp = true;
 
@@ -151,8 +152,7 @@ int iio_simple_dummy_configure_buffer(struct iio_dev *indio_dev)
 	 * Tell the core what device type specific functions should
 	 * be run on either side of buffer capture enable / disable.
 	 */
-	buffer->setup_ops = &iio_simple_dummy_buffer_setup_ops;
-	buffer->owner = THIS_MODULE;
+	indio_dev->setup_ops = &iio_simple_dummy_buffer_setup_ops;
 
 	/*
 	 * Configure a polling function.
diff --git a/drivers/staging/iio/iio_simple_dummy_events.c b/drivers/staging/iio/iio_simple_dummy_events.c
index 9f00cff7ddd5..449c7a5ece80 100644
--- a/drivers/staging/iio/iio_simple_dummy_events.c
+++ b/drivers/staging/iio/iio_simple_dummy_events.c
@@ -14,6 +14,7 @@
 
 #include "iio.h"
 #include "sysfs.h"
+#include "events.h"
 #include "iio_simple_dummy.h"
 
 /* Evgen 'fakes' interrupt events for this example */
diff --git a/drivers/staging/iio/impedance-analyzer/ad5933.c b/drivers/staging/iio/impedance-analyzer/ad5933.c
index 454d131455de..9a2ca55625f4 100644
--- a/drivers/staging/iio/impedance-analyzer/ad5933.c
+++ b/drivers/staging/iio/impedance-analyzer/ad5933.c
@@ -21,7 +21,7 @@
 
 #include "../iio.h"
 #include "../sysfs.h"
-#include "../buffer_generic.h"
+#include "../buffer.h"
 #include "../ring_sw.h"
 
 #include "ad5933.h"
@@ -113,10 +113,10 @@ static struct iio_chan_spec ad5933_channels[] = {
 		 0, AD5933_REG_TEMP_DATA, IIO_ST('s', 14, 16, 0), 0),
 	/* Ring Channels */
 	IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, "real_raw", 0, 0,
-		 (1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+		 IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 		 AD5933_REG_REAL_DATA, 0, IIO_ST('s', 16, 16, 0), 0),
 	IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, "imag_raw", 0, 0,
-		 (1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+		 IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 		 AD5933_REG_IMAG_DATA, 1, IIO_ST('s', 16, 16, 0), 0),
 };
 
@@ -329,7 +329,7 @@ static ssize_t ad5933_show(struct device *dev,
 	int ret = 0, len = 0;
 
 	mutex_lock(&indio_dev->mlock);
-	switch (this_attr->address) {
+	switch ((u32) this_attr->address) {
 	case AD5933_OUT_RANGE:
 		len = sprintf(buf, "%d\n",
 			      st->range_avail[(st->ctrl_hb >> 1) & 0x3]);
@@ -380,7 +380,7 @@ static ssize_t ad5933_store(struct device *dev,
 	}
 
 	mutex_lock(&indio_dev->mlock);
-	switch (this_attr->address) {
+	switch ((u32) this_attr->address) {
 	case AD5933_OUT_RANGE:
 		for (i = 0; i < 4; i++)
 			if (val == st->range_avail[i]) {
@@ -537,14 +537,14 @@ static const struct iio_info ad5933_info = {
 static int ad5933_ring_preenable(struct iio_dev *indio_dev)
 {
 	struct ad5933_state *st = iio_priv(indio_dev);
-	struct iio_buffer *ring = indio_dev->buffer;
 	size_t d_size;
 	int ret;
 
-	if (!ring->scan_count)
+	if (bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength))
 		return -EINVAL;
 
-	d_size = ring->scan_count *
+	d_size = bitmap_weight(indio_dev->active_scan_mask,
+			       indio_dev->masklength) *
 		 ad5933_channels[1].scan_type.storagebits / 8;
 
 	if (indio_dev->buffer->access->set_bytes_per_datum)
@@ -611,7 +611,7 @@ static int ad5933_register_ring_funcs_and_init(struct iio_dev *indio_dev)
 	indio_dev->buffer->access = &ring_sw_access_funcs;
 
 	/* Ring buffer functions - here trigger setup related */
-	indio_dev->buffer->setup_ops = &ad5933_ring_setup_ops;
+	indio_dev->setup_ops = &ad5933_ring_setup_ops;
 
 	indio_dev->modes |= INDIO_BUFFER_HARDWARE;
 
@@ -640,12 +640,14 @@ static void ad5933_work(struct work_struct *work)
 	ad5933_i2c_read(st->client, AD5933_REG_STATUS, 1, &status);
 
 	if (status & AD5933_STAT_DATA_VALID) {
+		int scan_count = bitmap_weight(indio_dev->active_scan_mask,
+					       indio_dev->masklength);
 		ad5933_i2c_read(st->client,
-				test_bit(1, ring->scan_mask) ?
+				test_bit(1, indio_dev->active_scan_mask) ?
 				AD5933_REG_REAL_DATA : AD5933_REG_IMAG_DATA,
-				ring->scan_count * 2, (u8 *)buf);
+				scan_count * 2, (u8 *)buf);
 
-		if (ring->scan_count == 2) {
+		if (scan_count == 2) {
 			buf[0] = be16_to_cpu(buf[0]);
 			buf[1] = be16_to_cpu(buf[1]);
 		} else {
@@ -734,8 +736,8 @@ static int __devinit ad5933_probe(struct i2c_client *client,
 		goto error_unreg_ring;
 
 	/* enable both REAL and IMAG channels by default */
-	iio_scan_mask_set(indio_dev->buffer, 0);
-	iio_scan_mask_set(indio_dev->buffer, 1);
+	iio_scan_mask_set(indio_dev, indio_dev->buffer, 0);
+	iio_scan_mask_set(indio_dev, indio_dev->buffer, 1);
 
 	ret = ad5933_setup(st);
 	if (ret)
diff --git a/drivers/staging/iio/imu/adis16400.h b/drivers/staging/iio/imu/adis16400.h
index f3546ee910a2..83d133efaac6 100644
--- a/drivers/staging/iio/imu/adis16400.h
+++ b/drivers/staging/iio/imu/adis16400.h
@@ -148,12 +148,14 @@ struct adis16400_chip_info {
  * @tx:			transmit buffer
  * @rx:			receive buffer
  * @buf_lock:		mutex to protect tx and rx
+ * @filt_int:		integer part of requested filter frequency
  **/
 struct adis16400_state {
 	struct spi_device		*us;
 	struct iio_trigger		*trig;
 	struct mutex			buf_lock;
 	struct adis16400_chip_info	*variant;
+	int				filt_int;
 
 	u8	tx[ADIS16400_MAX_TX] ____cacheline_aligned;
 	u8	rx[ADIS16400_MAX_RX] ____cacheline_aligned;
diff --git a/drivers/staging/iio/imu/adis16400_core.c b/drivers/staging/iio/imu/adis16400_core.c
index efc0f6529008..e73ad7818d85 100644
--- a/drivers/staging/iio/imu/adis16400_core.c
+++ b/drivers/staging/iio/imu/adis16400_core.c
@@ -28,7 +28,7 @@
 
 #include "../iio.h"
 #include "../sysfs.h"
-#include "../buffer_generic.h"
+#include "../buffer.h"
 #include "adis16400.h"
 
 enum adis16400_chip_variant {
@@ -161,25 +161,65 @@ error_ret:
 	return ret;
 }
 
+static int adis16400_get_freq(struct iio_dev *indio_dev)
+{
+	u16 t;
+	int sps, ret;
+
+	ret = adis16400_spi_read_reg_16(indio_dev, ADIS16400_SMPL_PRD, &t);
+	if (ret < 0)
+		return ret;
+	sps =  (t & ADIS16400_SMPL_PRD_TIME_BASE) ? 53 : 1638;
+	sps /= (t & ADIS16400_SMPL_PRD_DIV_MASK) + 1;
+
+	return sps;
+}
+
 static ssize_t adis16400_read_frequency(struct device *dev,
 		struct device_attribute *attr,
 		char *buf)
 {
 	struct iio_dev *indio_dev = dev_get_drvdata(dev);
 	int ret, len = 0;
-	u16 t;
-	int sps;
-	ret = adis16400_spi_read_reg_16(indio_dev,
-			ADIS16400_SMPL_PRD,
-			&t);
-	if (ret)
+	ret = adis16400_get_freq(indio_dev);
+	if (ret < 0)
 		return ret;
-	sps =  (t & ADIS16400_SMPL_PRD_TIME_BASE) ? 53 : 1638;
-	sps /= (t & ADIS16400_SMPL_PRD_DIV_MASK) + 1;
-	len = sprintf(buf, "%d SPS\n", sps);
+	len = sprintf(buf, "%d SPS\n", ret);
 	return len;
 }
 
+static const unsigned adis16400_3db_divisors[] = {
+	[0] = 2, /* Special case */
+	[1] = 5,
+	[2] = 10,
+	[3] = 50,
+	[4] = 200,
+};
+
+static int adis16400_set_filter(struct iio_dev *indio_dev, int sps, int val)
+{
+	int i, ret;
+	u16 val16;
+	for (i = ARRAY_SIZE(adis16400_3db_divisors) - 1; i >= 0; i--)
+		if (sps/adis16400_3db_divisors[i] > val)
+			break;
+	if (i == -1)
+		ret = -EINVAL;
+	else {
+		ret = adis16400_spi_read_reg_16(indio_dev,
+						ADIS16400_SENS_AVG,
+						&val16);
+		if (ret < 0)
+			goto error_ret;
+
+		ret = adis16400_spi_write_reg_16(indio_dev,
+						 ADIS16400_SENS_AVG,
+						 (val16 & ~0x03) | i);
+	}
+error_ret:
+	return ret;
+}
+
 static ssize_t adis16400_write_frequency(struct device *dev,
 		struct device_attribute *attr,
 		const char *buf,
@@ -210,6 +250,7 @@ static ssize_t adis16400_write_frequency(struct device *dev,
 			ADIS16400_SMPL_PRD,
 			t);
 
+	/* Also update the filter */
 	mutex_unlock(&indio_dev->mlock);
 
 	return ret ? ret : len;
@@ -455,22 +496,39 @@ static u8 adis16400_addresses[17][2] = {
 	[incli_y] = { ADIS16300_ROLL_OUT }
 };
 
+
 static int adis16400_write_raw(struct iio_dev *indio_dev,
 			       struct iio_chan_spec const *chan,
 			       int val,
 			       int val2,
 			       long mask)
 {
-	int ret;
+	struct adis16400_state *st = iio_priv(indio_dev);
+	int ret, sps;
 
 	switch (mask) {
-	case (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE):
+	case IIO_CHAN_INFO_CALIBBIAS:
 		mutex_lock(&indio_dev->mlock);
 		ret = adis16400_spi_write_reg_16(indio_dev,
 				adis16400_addresses[chan->address][1],
 				val);
 		mutex_unlock(&indio_dev->mlock);
 		return ret;
+	case IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY:
+		/* Need to cache values so we can update if the frequency
+		   changes */
+		mutex_lock(&indio_dev->mlock);
+		st->filt_int = val;
+		/* Work out update to current value */
+		sps = adis16400_get_freq(indio_dev);
+		if (sps < 0) {
+			mutex_unlock(&indio_dev->mlock);
+			return sps;
+		}
+
+		ret = adis16400_set_filter(indio_dev, sps, val);
+		mutex_unlock(&indio_dev->mlock);
+		return ret;
 	default:
 		return -EINVAL;
 	}
@@ -504,8 +562,7 @@ static int adis16400_read_raw(struct iio_dev *indio_dev,
 		*val = val16;
 		mutex_unlock(&indio_dev->mlock);
 		return IIO_VAL_INT;
-	case (1 << IIO_CHAN_INFO_SCALE_SHARED):
-	case (1 << IIO_CHAN_INFO_SCALE_SEPARATE):
+	case IIO_CHAN_INFO_SCALE:
 		switch (chan->type) {
 		case IIO_ANGL_VEL:
 			*val = 0;
@@ -533,7 +590,7 @@ static int adis16400_read_raw(struct iio_dev *indio_dev,
 		default:
 			return -EINVAL;
 		}
-	case (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE):
+	case IIO_CHAN_INFO_CALIBBIAS:
 		mutex_lock(&indio_dev->mlock);
 		ret = adis16400_spi_read_reg_16(indio_dev,
 				adis16400_addresses[chan->address][1],
@@ -544,11 +601,29 @@ static int adis16400_read_raw(struct iio_dev *indio_dev,
 		val16 = ((val16 & 0xFFF) << 4) >> 4;
 		*val = val16;
 		return IIO_VAL_INT;
-	case (1 << IIO_CHAN_INFO_OFFSET_SEPARATE):
+	case IIO_CHAN_INFO_OFFSET:
 		/* currently only temperature */
 		*val = 198;
 		*val2 = 160000;
 		return IIO_VAL_INT_PLUS_MICRO;
+	case IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY:
+		mutex_lock(&indio_dev->mlock);
+		/* Need both the number of taps and the sampling frequency */
+		ret = adis16400_spi_read_reg_16(indio_dev,
+						ADIS16400_SENS_AVG,
+						&val16);
+		if (ret < 0) {
+			mutex_unlock(&indio_dev->mlock);
+			return ret;
+		}
+		ret = adis16400_get_freq(indio_dev);
+		if (ret > 0)
+			*val = ret/adis16400_3db_divisors[val16 & 0x03];
+		*val2 = 0;
+		mutex_unlock(&indio_dev->mlock);
+		if (ret < 0)
+			return ret;
+		return IIO_VAL_INT_PLUS_MICRO;
 	default:
 		return -EINVAL;
 	}
@@ -560,7 +635,7 @@ static struct iio_chan_spec adis16400_channels[] = {
 		.indexed = 1,
 		.channel = 0,
 		.extend_name = "supply",
-		.info_mask = (1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+		.info_mask = IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 		.address = in_supply,
 		.scan_index = ADIS16400_SCAN_SUPPLY,
 		.scan_type = IIO_ST('u', 14, 16, 0)
@@ -568,8 +643,9 @@ static struct iio_chan_spec adis16400_channels[] = {
 		.type = IIO_ANGL_VEL,
 		.modified = 1,
 		.channel2 = IIO_MOD_X,
-		.info_mask = (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE) |
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		.info_mask = IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT |
+		IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY_SHARED_BIT,
 		.address = gyro_x,
 		.scan_index = ADIS16400_SCAN_GYRO_X,
 		.scan_type = IIO_ST('s', 14, 16, 0)
@@ -577,8 +653,9 @@ static struct iio_chan_spec adis16400_channels[] = {
 		.type = IIO_ANGL_VEL,
 		.modified = 1,
 		.channel2 = IIO_MOD_Y,
-		.info_mask = (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE) |
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		.info_mask = IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT |
+		IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY_SHARED_BIT,
 		.address = gyro_y,
 		.scan_index = ADIS16400_SCAN_GYRO_Y,
 		.scan_type = IIO_ST('s', 14, 16, 0),
@@ -586,8 +663,9 @@ static struct iio_chan_spec adis16400_channels[] = {
 		.type = IIO_ANGL_VEL,
 		.modified = 1,
 		.channel2 = IIO_MOD_Z,
-		.info_mask = (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE) |
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		.info_mask = IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT |
+		IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY_SHARED_BIT,
 		.address = gyro_z,
 		.scan_index = ADIS16400_SCAN_GYRO_Z,
 		.scan_type = IIO_ST('s', 14, 16, 0),
@@ -595,8 +673,9 @@ static struct iio_chan_spec adis16400_channels[] = {
 		.type = IIO_ACCEL,
 		.modified = 1,
 		.channel2 = IIO_MOD_X,
-		.info_mask = (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE) |
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		.info_mask = IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT |
+		IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY_SHARED_BIT,
 		.address = accel_x,
 		.scan_index = ADIS16400_SCAN_ACC_X,
 		.scan_type = IIO_ST('s', 14, 16, 0),
@@ -604,8 +683,9 @@ static struct iio_chan_spec adis16400_channels[] = {
 		.type = IIO_ACCEL,
 		.modified = 1,
 		.channel2 = IIO_MOD_Y,
-		.info_mask = (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE) |
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		.info_mask = IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT |
+		IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY_SHARED_BIT,
 		.address = accel_y,
 		.scan_index = ADIS16400_SCAN_ACC_Y,
 		.scan_type = IIO_ST('s', 14, 16, 0),
@@ -613,8 +693,9 @@ static struct iio_chan_spec adis16400_channels[] = {
 		.type = IIO_ACCEL,
 		.modified = 1,
 		.channel2 = IIO_MOD_Z,
-		.info_mask = (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE) |
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		.info_mask = IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT |
+		IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY_SHARED_BIT,
 		.address = accel_z,
 		.scan_index = ADIS16400_SCAN_ACC_Z,
 		.scan_type = IIO_ST('s', 14, 16, 0),
@@ -622,7 +703,8 @@ static struct iio_chan_spec adis16400_channels[] = {
 		.type = IIO_MAGN,
 		.modified = 1,
 		.channel2 = IIO_MOD_X,
-		.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),
+		.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY_SHARED_BIT,
 		.address = magn_x,
 		.scan_index = ADIS16400_SCAN_MAGN_X,
 		.scan_type = IIO_ST('s', 14, 16, 0),
@@ -630,7 +712,8 @@ static struct iio_chan_spec adis16400_channels[] = {
 		.type = IIO_MAGN,
 		.modified = 1,
 		.channel2 = IIO_MOD_Y,
-		.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),
+		.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY_SHARED_BIT,
 		.address = magn_y,
 		.scan_index = ADIS16400_SCAN_MAGN_Y,
 		.scan_type = IIO_ST('s', 14, 16, 0),
@@ -638,7 +721,8 @@ static struct iio_chan_spec adis16400_channels[] = {
 		.type = IIO_MAGN,
 		.modified = 1,
 		.channel2 = IIO_MOD_Z,
-		.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),
+		.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY_SHARED_BIT,
 		.address = magn_z,
 		.scan_index = ADIS16400_SCAN_MAGN_Z,
 		.scan_type = IIO_ST('s', 14, 16, 0),
@@ -646,8 +730,8 @@ static struct iio_chan_spec adis16400_channels[] = {
 		.type = IIO_TEMP,
 		.indexed = 1,
 		.channel = 0,
-		.info_mask = (1 << IIO_CHAN_INFO_OFFSET_SEPARATE) |
-		(1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+		.info_mask = IIO_CHAN_INFO_OFFSET_SEPARATE_BIT |
+		IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 		.address = temp,
 		.scan_index = ADIS16400_SCAN_TEMP,
 		.scan_type = IIO_ST('s', 12, 16, 0),
@@ -655,7 +739,7 @@ static struct iio_chan_spec adis16400_channels[] = {
 		.type = IIO_VOLTAGE,
 		.indexed = 1,
 		.channel = 1,
-		.info_mask = (1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+		.info_mask = IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 		.address = in1,
 		.scan_index = ADIS16400_SCAN_ADC_0,
 		.scan_type = IIO_ST('s', 12, 16, 0),
@@ -669,7 +753,7 @@ static struct iio_chan_spec adis16350_channels[] = {
 		.indexed = 1,
 		.channel = 0,
 		.extend_name = "supply",
-		.info_mask = (1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+		.info_mask = IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 		.address = in_supply,
 		.scan_index = ADIS16400_SCAN_SUPPLY,
 		.scan_type = IIO_ST('u', 12, 16, 0)
@@ -677,8 +761,9 @@ static struct iio_chan_spec adis16350_channels[] = {
 		.type = IIO_ANGL_VEL,
 		.modified = 1,
 		.channel2 = IIO_MOD_X,
-		.info_mask = (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE) |
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		.info_mask = IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT |
+		IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY_SHARED_BIT,
 		.address = gyro_x,
 		.scan_index = ADIS16400_SCAN_GYRO_X,
 		.scan_type = IIO_ST('s', 14, 16, 0)
@@ -686,8 +771,9 @@ static struct iio_chan_spec adis16350_channels[] = {
 		.type = IIO_ANGL_VEL,
 		.modified = 1,
 		.channel2 = IIO_MOD_Y,
-		.info_mask = (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE) |
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		.info_mask = IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT |
+		IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY_SHARED_BIT,
 		.address = gyro_y,
 		.scan_index = ADIS16400_SCAN_GYRO_Y,
 		.scan_type = IIO_ST('s', 14, 16, 0),
@@ -695,8 +781,9 @@ static struct iio_chan_spec adis16350_channels[] = {
 		.type = IIO_ANGL_VEL,
 		.modified = 1,
 		.channel2 = IIO_MOD_Z,
-		.info_mask = (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE) |
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		.info_mask = IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT |
+		IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY_SHARED_BIT,
 		.address = gyro_z,
 		.scan_index = ADIS16400_SCAN_GYRO_Z,
 		.scan_type = IIO_ST('s', 14, 16, 0),
@@ -704,8 +791,9 @@ static struct iio_chan_spec adis16350_channels[] = {
 	.type = IIO_ACCEL,
 		.modified = 1,
 		.channel2 = IIO_MOD_X,
-		.info_mask = (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE) |
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		.info_mask = IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT |
+		IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY_SHARED_BIT,
 		.address = accel_x,
 		.scan_index = ADIS16400_SCAN_ACC_X,
 		.scan_type = IIO_ST('s', 14, 16, 0),
@@ -713,8 +801,9 @@ static struct iio_chan_spec adis16350_channels[] = {
 		.type = IIO_ACCEL,
 		.modified = 1,
 		.channel2 = IIO_MOD_Y,
-		.info_mask = (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE) |
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		.info_mask = IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT |
+		IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY_SHARED_BIT,
 		.address = accel_y,
 		.scan_index = ADIS16400_SCAN_ACC_Y,
 		.scan_type = IIO_ST('s', 14, 16, 0),
@@ -722,8 +811,9 @@ static struct iio_chan_spec adis16350_channels[] = {
 		.type = IIO_ACCEL,
 		.modified = 1,
 		.channel2 = IIO_MOD_Z,
-		.info_mask = (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE) |
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		.info_mask = IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT |
+		IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY_SHARED_BIT,
 		.address = accel_z,
 		.scan_index = ADIS16400_SCAN_ACC_Z,
 		.scan_type = IIO_ST('s', 14, 16, 0),
@@ -732,8 +822,9 @@ static struct iio_chan_spec adis16350_channels[] = {
 		.indexed = 1,
 		.channel = 0,
 		.extend_name = "x",
-		.info_mask = (1 << IIO_CHAN_INFO_OFFSET_SEPARATE) |
-		(1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+		.info_mask = IIO_CHAN_INFO_OFFSET_SEPARATE_BIT |
+		IIO_CHAN_INFO_SCALE_SEPARATE_BIT |
+		IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY_SHARED_BIT,
 		.address = temp0,
 		.scan_index = ADIS16350_SCAN_TEMP_X,
 		.scan_type = IIO_ST('s', 12, 16, 0),
@@ -742,8 +833,9 @@ static struct iio_chan_spec adis16350_channels[] = {
 		.indexed = 1,
 		.channel = 1,
 		.extend_name = "y",
-		.info_mask = (1 << IIO_CHAN_INFO_OFFSET_SEPARATE) |
-		(1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+		.info_mask = IIO_CHAN_INFO_OFFSET_SEPARATE_BIT |
+		IIO_CHAN_INFO_SCALE_SEPARATE_BIT |
+		IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY_SHARED_BIT,
 		.address = temp1,
 		.scan_index = ADIS16350_SCAN_TEMP_Y,
 		.scan_type = IIO_ST('s', 12, 16, 0),
@@ -752,8 +844,8 @@ static struct iio_chan_spec adis16350_channels[] = {
 		.indexed = 1,
 		.channel = 2,
 		.extend_name = "z",
-		.info_mask = (1 << IIO_CHAN_INFO_OFFSET_SEPARATE) |
-		(1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+		.info_mask = IIO_CHAN_INFO_OFFSET_SEPARATE_BIT |
+		IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 		.address = temp2,
 		.scan_index = ADIS16350_SCAN_TEMP_Z,
 		.scan_type = IIO_ST('s', 12, 16, 0),
@@ -761,7 +853,7 @@ static struct iio_chan_spec adis16350_channels[] = {
 		.type = IIO_VOLTAGE,
 		.indexed = 1,
 		.channel = 1,
-		.info_mask = (1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+		.info_mask = IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 		.address = in1,
 		.scan_index = ADIS16350_SCAN_ADC_0,
 		.scan_type = IIO_ST('s', 12, 16, 0),
@@ -775,7 +867,7 @@ static struct iio_chan_spec adis16300_channels[] = {
 		.indexed = 1,
 		.channel = 0,
 		.extend_name = "supply",
-		.info_mask = (1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+		.info_mask = IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 		.address = in_supply,
 		.scan_index = ADIS16400_SCAN_SUPPLY,
 		.scan_type = IIO_ST('u', 12, 16, 0)
@@ -783,8 +875,9 @@ static struct iio_chan_spec adis16300_channels[] = {
 		.type = IIO_ANGL_VEL,
 		.modified = 1,
 		.channel2 = IIO_MOD_X,
-		.info_mask = (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE) |
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		.info_mask = IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT |
+		IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY_SHARED_BIT,
 		.address = gyro_x,
 		.scan_index = ADIS16400_SCAN_GYRO_X,
 		.scan_type = IIO_ST('s', 14, 16, 0),
@@ -792,8 +885,9 @@ static struct iio_chan_spec adis16300_channels[] = {
 		.type = IIO_ACCEL,
 		.modified = 1,
 		.channel2 = IIO_MOD_X,
-		.info_mask = (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE) |
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		.info_mask = IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT |
+		IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY_SHARED_BIT,
 		.address = accel_x,
 		.scan_index = ADIS16400_SCAN_ACC_X,
 		.scan_type = IIO_ST('s', 14, 16, 0),
@@ -801,8 +895,9 @@ static struct iio_chan_spec adis16300_channels[] = {
 		.type = IIO_ACCEL,
 		.modified = 1,
 		.channel2 = IIO_MOD_Y,
-		.info_mask = (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE) |
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		.info_mask = IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT |
+		IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY_SHARED_BIT,
 		.address = accel_y,
 		.scan_index = ADIS16400_SCAN_ACC_Y,
 		.scan_type = IIO_ST('s', 14, 16, 0),
@@ -810,8 +905,9 @@ static struct iio_chan_spec adis16300_channels[] = {
 		.type = IIO_ACCEL,
 		.modified = 1,
 		.channel2 = IIO_MOD_Z,
-		.info_mask = (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE) |
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		.info_mask = IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT |
+		IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY_SHARED_BIT,
 		.address = accel_z,
 		.scan_index = ADIS16400_SCAN_ACC_Z,
 		.scan_type = IIO_ST('s', 14, 16, 0),
@@ -819,8 +915,8 @@ static struct iio_chan_spec adis16300_channels[] = {
 		.type = IIO_TEMP,
 		.indexed = 1,
 		.channel = 0,
-		.info_mask = (1 << IIO_CHAN_INFO_OFFSET_SEPARATE) |
-		(1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+		.info_mask = IIO_CHAN_INFO_OFFSET_SEPARATE_BIT |
+		IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 		.address = temp,
 		.scan_index = ADIS16400_SCAN_TEMP,
 		.scan_type = IIO_ST('s', 12, 16, 0),
@@ -828,7 +924,7 @@ static struct iio_chan_spec adis16300_channels[] = {
 		.type = IIO_VOLTAGE,
 		.indexed = 1,
 		.channel = 1,
-		.info_mask = (1 << IIO_CHAN_INFO_SCALE_SEPARATE),
+		.info_mask = IIO_CHAN_INFO_SCALE_SEPARATE_BIT,
 		.address = in1,
 		.scan_index = ADIS16350_SCAN_ADC_0,
 		.scan_type = IIO_ST('s', 12, 16, 0),
@@ -836,7 +932,7 @@ static struct iio_chan_spec adis16300_channels[] = {
 		.type = IIO_INCLI,
 		.modified = 1,
 		.channel2 = IIO_MOD_X,
-		.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),
+		.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		.address = incli_x,
 		.scan_index = ADIS16300_SCAN_INCLI_X,
 		.scan_type = IIO_ST('s', 13, 16, 0),
@@ -844,7 +940,7 @@ static struct iio_chan_spec adis16300_channels[] = {
 		.type = IIO_INCLI,
 		.modified = 1,
 		.channel2 = IIO_MOD_Y,
-		.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),
+		.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		.address = incli_y,
 		.scan_index = ADIS16300_SCAN_INCLI_Y,
 		.scan_type = IIO_ST('s', 13, 16, 0),
@@ -857,8 +953,9 @@ static const struct iio_chan_spec adis16334_channels[] = {
 		.type = IIO_ANGL_VEL,
 		.modified = 1,
 		.channel2 = IIO_MOD_X,
-		.info_mask = (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE) |
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		.info_mask = IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT |
+		IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY_SHARED_BIT,
 		.address = gyro_x,
 		.scan_index = ADIS16400_SCAN_GYRO_X,
 		.scan_type = IIO_ST('s', 14, 16, 0),
@@ -866,8 +963,9 @@ static const struct iio_chan_spec adis16334_channels[] = {
 		.type = IIO_ANGL_VEL,
 		.modified = 1,
 		.channel2 = IIO_MOD_Y,
-		.info_mask = (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE) |
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		.info_mask = IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT |
+		IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY_SHARED_BIT,
 		.address = gyro_y,
 		.scan_index = ADIS16400_SCAN_GYRO_Y,
 		.scan_type = IIO_ST('s', 14, 16, 0),
@@ -875,8 +973,9 @@ static const struct iio_chan_spec adis16334_channels[] = {
 		.type = IIO_ANGL_VEL,
 		.modified = 1,
 		.channel2 = IIO_MOD_Z,
-		.info_mask = (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE) |
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		.info_mask = IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT |
+		IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY_SHARED_BIT,
 		.address = gyro_z,
 		.scan_index = ADIS16400_SCAN_GYRO_Z,
 		.scan_type = IIO_ST('s', 14, 16, 0),
@@ -884,8 +983,9 @@ static const struct iio_chan_spec adis16334_channels[] = {
 		.type = IIO_ACCEL,
 		.modified = 1,
 		.channel2 = IIO_MOD_X,
-		.info_mask = (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE) |
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		.info_mask = IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT |
+		IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY_SHARED_BIT,
 		.address = accel_x,
 		.scan_index = ADIS16400_SCAN_ACC_X,
 		.scan_type = IIO_ST('s', 14, 16, 0),
@@ -893,8 +993,9 @@ static const struct iio_chan_spec adis16334_channels[] = {
 		.type = IIO_ACCEL,
 		.modified = 1,
 		.channel2 = IIO_MOD_Y,
-		.info_mask = (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE) |
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		.info_mask = IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT |
+		IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY_SHARED_BIT,
 		.address = accel_y,
 		.scan_index = ADIS16400_SCAN_ACC_Y,
 		.scan_type = IIO_ST('s', 14, 16, 0),
@@ -902,8 +1003,9 @@ static const struct iio_chan_spec adis16334_channels[] = {
 		.type = IIO_ACCEL,
 		.modified = 1,
 		.channel2 = IIO_MOD_Z,
-		.info_mask = (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE) |
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		.info_mask = IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT |
+		IIO_CHAN_INFO_SCALE_SHARED_BIT |
+		IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY_SHARED_BIT,
 		.address = accel_z,
 		.scan_index = ADIS16400_SCAN_ACC_Z,
 		.scan_type = IIO_ST('s', 14, 16, 0),
@@ -911,8 +1013,8 @@ static const struct iio_chan_spec adis16334_channels[] = {
 		.type = IIO_TEMP,
 		.indexed = 1,
 		.channel = 0,
-		.info_mask = (1 << IIO_CHAN_INFO_CALIBBIAS_SEPARATE) |
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		.info_mask = IIO_CHAN_INFO_CALIBBIAS_SEPARATE_BIT |
+		IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		.address = accel_z,
 		.scan_index = ADIS16400_SCAN_ACC_Z,
 		.scan_type = IIO_ST('s', 14, 16, 0),
@@ -1118,6 +1220,7 @@ static const struct spi_device_id adis16400_id[] = {
 	{"adis16405", ADIS16400},
 	{}
 };
+MODULE_DEVICE_TABLE(spi, adis16400_id);
 
 static struct spi_driver adis16400_driver = {
 	.driver = {
diff --git a/drivers/staging/iio/imu/adis16400_ring.c b/drivers/staging/iio/imu/adis16400_ring.c
index fd886bf51a6d..ac22de573f3e 100644
--- a/drivers/staging/iio/imu/adis16400_ring.c
+++ b/drivers/staging/iio/imu/adis16400_ring.c
@@ -79,14 +79,16 @@ static int adis16350_spi_read_all(struct device *dev, u8 *rx)
 	struct spi_message msg;
 	int i, j = 0, ret;
 	struct spi_transfer *xfers;
+	int scan_count = bitmap_weight(indio_dev->active_scan_mask,
+				       indio_dev->masklength);
 
-	xfers = kzalloc(sizeof(*xfers)*indio_dev->buffer->scan_count + 1,
+	xfers = kzalloc(sizeof(*xfers)*(scan_count + 1),
 			GFP_KERNEL);
 	if (xfers == NULL)
 		return -ENOMEM;
 
 	for (i = 0; i < ARRAY_SIZE(read_all_tx_array); i++)
-		if (test_bit(i, indio_dev->buffer->scan_mask)) {
+		if (test_bit(i, indio_dev->active_scan_mask)) {
 			xfers[j].tx_buf = &read_all_tx_array[i];
 			xfers[j].bits_per_word = 16;
 			xfers[j].len = 2;
@@ -97,7 +99,7 @@ static int adis16350_spi_read_all(struct device *dev, u8 *rx)
 	xfers[j].len = 2;
 
 	spi_message_init(&msg);
-	for (j = 0; j < indio_dev->buffer->scan_count + 1; j++)
+	for (j = 0; j < scan_count + 1; j++)
 		spi_message_add_tail(&xfers[j], &msg);
 
 	ret = spi_sync(st->us, &msg);
@@ -119,26 +121,27 @@ static irqreturn_t adis16400_trigger_handler(int irq, void *p)
 	s16 *data;
 	size_t datasize = ring->access->get_bytes_per_datum(ring);
 	/* Asumption that long is enough for maximum channels */
-	unsigned long mask = *ring->scan_mask;
-
+	unsigned long mask = *indio_dev->active_scan_mask;
+	int scan_count = bitmap_weight(indio_dev->active_scan_mask,
+				       indio_dev->masklength);
 	data = kmalloc(datasize , GFP_KERNEL);
 	if (data == NULL) {
 		dev_err(&st->us->dev, "memory alloc failed in ring bh");
 		return -ENOMEM;
 	}
 
-	if (ring->scan_count) {
+	if (scan_count) {
 		if (st->variant->flags & ADIS16400_NO_BURST) {
 			ret = adis16350_spi_read_all(&indio_dev->dev, st->rx);
 			if (ret < 0)
 				goto err;
-			for (; i < ring->scan_count; i++)
+			for (; i < scan_count; i++)
 				data[i]	= *(s16 *)(st->rx + i*2);
 		} else {
 			ret = adis16400_spi_read_burst(&indio_dev->dev, st->rx);
 			if (ret < 0)
 				goto err;
-			for (; i < indio_dev->buffer->scan_count; i++) {
+			for (; i < scan_count; i++) {
 				j = __ffs(mask);
 				mask &= ~(1 << j);
 				data[i] = be16_to_cpup(
@@ -186,10 +189,8 @@ int adis16400_configure_ring(struct iio_dev *indio_dev)
 	indio_dev->buffer = ring;
 	/* Effectively select the ring buffer implementation */
 	ring->access = &ring_sw_access_funcs;
-	ring->bpe = 2;
 	ring->scan_timestamp = true;
-	ring->setup_ops = &adis16400_ring_setup_ops;
-	ring->owner = THIS_MODULE;
+	indio_dev->setup_ops = &adis16400_ring_setup_ops;
 
 	indio_dev->pollfunc = iio_alloc_pollfunc(&iio_pollfunc_store_time,
 						 &adis16400_trigger_handler,
diff --git a/drivers/staging/iio/industrialio-buffer.c b/drivers/staging/iio/industrialio-buffer.c
index 9df0ce81dade..d7b1e9e435ae 100644
--- a/drivers/staging/iio/industrialio-buffer.c
+++ b/drivers/staging/iio/industrialio-buffer.c
@@ -24,7 +24,7 @@
 #include "iio.h"
 #include "iio_core.h"
 #include "sysfs.h"
-#include "buffer_generic.h"
+#include "buffer.h"
 
 static const char * const iio_endian_prefix[] = {
 	[IIO_BE] = "be",
@@ -43,7 +43,7 @@ ssize_t iio_buffer_read_first_n_outer(struct file *filp, char __user *buf,
 	struct iio_dev *indio_dev = filp->private_data;
 	struct iio_buffer *rb = indio_dev->buffer;
 
-	if (!rb->access->read_first_n)
+	if (!rb || !rb->access->read_first_n)
 		return -EINVAL;
 	return rb->access->read_first_n(rb, n, buf);
 }
@@ -64,28 +64,9 @@ unsigned int iio_buffer_poll(struct file *filp,
 	return 0;
 }
 
-int iio_chrdev_buffer_open(struct iio_dev *indio_dev)
+void iio_buffer_init(struct iio_buffer *buffer)
 {
-	struct iio_buffer *rb = indio_dev->buffer;
-	if (!rb)
-		return -EINVAL;
-	if (rb->access->mark_in_use)
-		rb->access->mark_in_use(rb);
-	return 0;
-}
-
-void iio_chrdev_buffer_release(struct iio_dev *indio_dev)
-{
-	struct iio_buffer *rb = indio_dev->buffer;
-
-	clear_bit(IIO_BUSY_BIT_POS, &rb->flags);
-	if (rb->access->unmark_in_use)
-		rb->access->unmark_in_use(rb);
-}
-
-void iio_buffer_init(struct iio_buffer *buffer, struct iio_dev *indio_dev)
-{
-	buffer->indio_dev = indio_dev;
+	INIT_LIST_HEAD(&buffer->demux_list);
 	init_waitqueue_head(&buffer->pollq);
 }
 EXPORT_SYMBOL(iio_buffer_init);
@@ -126,17 +107,15 @@ static ssize_t iio_scan_el_show(struct device *dev,
 	int ret;
 	struct iio_dev *indio_dev = dev_get_drvdata(dev);
 
-	ret = iio_scan_mask_query(indio_dev->buffer,
-				  to_iio_dev_attr(attr)->address);
-	if (ret < 0)
-		return ret;
+	ret = test_bit(to_iio_dev_attr(attr)->address,
+		       indio_dev->buffer->scan_mask);
+
 	return sprintf(buf, "%d\n", ret);
 }
 
 static int iio_scan_mask_clear(struct iio_buffer *buffer, int bit)
 {
 	clear_bit(bit, buffer->scan_mask);
-	buffer->scan_count--;
 	return 0;
 }
 
@@ -153,11 +132,11 @@ static ssize_t iio_scan_el_store(struct device *dev,
 
 	state = !(buf[0] == '0');
 	mutex_lock(&indio_dev->mlock);
-	if (indio_dev->currentmode == INDIO_BUFFER_TRIGGERED) {
+	if (iio_buffer_enabled(indio_dev)) {
 		ret = -EBUSY;
 		goto error_ret;
 	}
-	ret = iio_scan_mask_query(buffer, this_attr->address);
+	ret = iio_scan_mask_query(indio_dev, buffer, this_attr->address);
 	if (ret < 0)
 		goto error_ret;
 	if (!state && ret) {
@@ -165,7 +144,7 @@ static ssize_t iio_scan_el_store(struct device *dev,
 		if (ret)
 			goto error_ret;
 	} else if (state && !ret) {
-		ret = iio_scan_mask_set(buffer, this_attr->address);
+		ret = iio_scan_mask_set(indio_dev, buffer, this_attr->address);
 		if (ret)
 			goto error_ret;
 	}
@@ -173,7 +152,7 @@ static ssize_t iio_scan_el_store(struct device *dev,
 error_ret:
 	mutex_unlock(&indio_dev->mlock);
 
-	return ret ? ret : len;
+	return ret < 0 ? ret : len;
 
 }
 
@@ -196,7 +175,7 @@ static ssize_t iio_scan_el_ts_store(struct device *dev,
 
 	state = !(buf[0] == '0');
 	mutex_lock(&indio_dev->mlock);
-	if (indio_dev->currentmode == INDIO_BUFFER_TRIGGERED) {
+	if (iio_buffer_enabled(indio_dev)) {
 		ret = -EBUSY;
 		goto error_ret;
 	}
@@ -311,12 +290,14 @@ int iio_buffer_register(struct iio_dev *indio_dev,
 			if (ret < 0)
 				goto error_cleanup_dynamic;
 			attrcount += ret;
+			if (channels[i].type == IIO_TIMESTAMP)
+				buffer->scan_index_timestamp =
+					channels[i].scan_index;
 		}
 		if (indio_dev->masklength && buffer->scan_mask == NULL) {
-			buffer->scan_mask
-				= kzalloc(sizeof(*buffer->scan_mask)*
-					  BITS_TO_LONGS(indio_dev->masklength),
-					  GFP_KERNEL);
+			buffer->scan_mask = kcalloc(BITS_TO_LONGS(indio_dev->masklength),
+						    sizeof(*buffer->scan_mask),
+						    GFP_KERNEL);
 			if (buffer->scan_mask == NULL) {
 				ret = -ENOMEM;
 				goto error_cleanup_dynamic;
@@ -326,10 +307,9 @@ int iio_buffer_register(struct iio_dev *indio_dev,
 
 	buffer->scan_el_group.name = iio_scan_elements_group_name;
 
-	buffer->scan_el_group.attrs
-		= kzalloc(sizeof(buffer->scan_el_group.attrs[0])*
-			  (attrcount + 1),
-			  GFP_KERNEL);
+	buffer->scan_el_group.attrs = kcalloc(attrcount + 1,
+					      sizeof(buffer->scan_el_group.attrs[0]),
+					      GFP_KERNEL);
 	if (buffer->scan_el_group.attrs == NULL) {
 		ret = -ENOMEM;
 		goto error_free_scan_mask;
@@ -395,31 +375,20 @@ ssize_t iio_buffer_write_length(struct device *dev,
 		if (val == buffer->access->get_length(buffer))
 			return len;
 
-	if (buffer->access->set_length) {
-		buffer->access->set_length(buffer, val);
-		if (buffer->access->mark_param_change)
-			buffer->access->mark_param_change(buffer);
+	mutex_lock(&indio_dev->mlock);
+	if (iio_buffer_enabled(indio_dev)) {
+		ret = -EBUSY;
+	} else {
+		if (buffer->access->set_length)
+			buffer->access->set_length(buffer, val);
+		ret = 0;
 	}
+	mutex_unlock(&indio_dev->mlock);
 
-	return len;
+	return ret ? ret : len;
 }
 EXPORT_SYMBOL(iio_buffer_write_length);
 
-ssize_t iio_buffer_read_bytes_per_datum(struct device *dev,
-					struct device_attribute *attr,
-					char *buf)
-{
-	struct iio_dev *indio_dev = dev_get_drvdata(dev);
-	struct iio_buffer *buffer = indio_dev->buffer;
-
-	if (buffer->access->get_bytes_per_datum)
-		return sprintf(buf, "%d\n",
-			       buffer->access->get_bytes_per_datum(buffer));
-
-	return 0;
-}
-EXPORT_SYMBOL(iio_buffer_read_bytes_per_datum);
-
 ssize_t iio_buffer_store_enable(struct device *dev,
 				struct device_attribute *attr,
 				const char *buf,
@@ -434,14 +403,14 @@ ssize_t iio_buffer_store_enable(struct device *dev,
 	mutex_lock(&indio_dev->mlock);
 	previous_mode = indio_dev->currentmode;
 	requested_state = !(buf[0] == '0');
-	current_state = !!(previous_mode & INDIO_ALL_BUFFER_MODES);
+	current_state = iio_buffer_enabled(indio_dev);
 	if (current_state == requested_state) {
 		printk(KERN_INFO "iio-buffer, current state requested again\n");
 		goto done;
 	}
 	if (requested_state) {
-		if (buffer->setup_ops->preenable) {
-			ret = buffer->setup_ops->preenable(indio_dev);
+		if (indio_dev->setup_ops->preenable) {
+			ret = indio_dev->setup_ops->preenable(indio_dev);
 			if (ret) {
 				printk(KERN_ERR
 				       "Buffer not started:"
@@ -458,16 +427,12 @@ ssize_t iio_buffer_store_enable(struct device *dev,
 				goto error_ret;
 			}
 		}
-		if (buffer->access->mark_in_use)
-			buffer->access->mark_in_use(buffer);
 		/* Definitely possible for devices to support both of these.*/
 		if (indio_dev->modes & INDIO_BUFFER_TRIGGERED) {
 			if (!indio_dev->trig) {
 				printk(KERN_INFO
 				       "Buffer not started: no trigger\n");
 				ret = -EINVAL;
-				if (buffer->access->unmark_in_use)
-					buffer->access->unmark_in_use(buffer);
 				goto error_ret;
 			}
 			indio_dev->currentmode = INDIO_BUFFER_TRIGGERED;
@@ -478,32 +443,28 @@ ssize_t iio_buffer_store_enable(struct device *dev,
 			goto error_ret;
 		}
 
-		if (buffer->setup_ops->postenable) {
-			ret = buffer->setup_ops->postenable(indio_dev);
+		if (indio_dev->setup_ops->postenable) {
+			ret = indio_dev->setup_ops->postenable(indio_dev);
 			if (ret) {
 				printk(KERN_INFO
 				       "Buffer not started:"
 				       "postenable failed\n");
-				if (buffer->access->unmark_in_use)
-					buffer->access->unmark_in_use(buffer);
 				indio_dev->currentmode = previous_mode;
-				if (buffer->setup_ops->postdisable)
-					buffer->setup_ops->
+				if (indio_dev->setup_ops->postdisable)
+					indio_dev->setup_ops->
 						postdisable(indio_dev);
 				goto error_ret;
 			}
 		}
 	} else {
-		if (buffer->setup_ops->predisable) {
-			ret = buffer->setup_ops->predisable(indio_dev);
+		if (indio_dev->setup_ops->predisable) {
+			ret = indio_dev->setup_ops->predisable(indio_dev);
 			if (ret)
 				goto error_ret;
 		}
-		if (buffer->access->unmark_in_use)
-			buffer->access->unmark_in_use(buffer);
 		indio_dev->currentmode = INDIO_DIRECT_MODE;
-		if (buffer->setup_ops->postdisable) {
-			ret = buffer->setup_ops->postdisable(indio_dev);
+		if (indio_dev->setup_ops->postdisable) {
+			ret = indio_dev->setup_ops->postdisable(indio_dev);
 			if (ret)
 				goto error_ret;
 		}
@@ -523,37 +484,10 @@ ssize_t iio_buffer_show_enable(struct device *dev,
 			       char *buf)
 {
 	struct iio_dev *indio_dev = dev_get_drvdata(dev);
-	return sprintf(buf, "%d\n", !!(indio_dev->currentmode
-				       & INDIO_ALL_BUFFER_MODES));
+	return sprintf(buf, "%d\n", iio_buffer_enabled(indio_dev));
 }
 EXPORT_SYMBOL(iio_buffer_show_enable);
 
-int iio_sw_buffer_preenable(struct iio_dev *indio_dev)
-{
-	struct iio_buffer *buffer = indio_dev->buffer;
-	size_t size;
-	dev_dbg(&indio_dev->dev, "%s\n", __func__);
-	/* Check if there are any scan elements enabled, if not fail*/
-	if (!(buffer->scan_count || buffer->scan_timestamp))
-		return -EINVAL;
-	if (buffer->scan_timestamp)
-		if (buffer->scan_count)
-			/* Timestamp (aligned to s64) and data */
-			size = (((buffer->scan_count * buffer->bpe)
-					+ sizeof(s64) - 1)
-				& ~(sizeof(s64) - 1))
-				+ sizeof(s64);
-		else /* Timestamp only  */
-			size = sizeof(s64);
-	else /* Data only */
-		size = buffer->scan_count * buffer->bpe;
-	buffer->access->set_bytes_per_datum(buffer, size);
-
-	return 0;
-}
-EXPORT_SYMBOL(iio_sw_buffer_preenable);
-
-
 /* note NULL used as error indicator as it doesn't make sense. */
 static unsigned long *iio_scan_mask_match(unsigned long *av_masks,
 					  unsigned int masklength,
@@ -569,14 +503,57 @@ static unsigned long *iio_scan_mask_match(unsigned long *av_masks,
 	return NULL;
 }
 
+int iio_sw_buffer_preenable(struct iio_dev *indio_dev)
+{
+	struct iio_buffer *buffer = indio_dev->buffer;
+	const struct iio_chan_spec *ch;
+	unsigned bytes = 0;
+	int length, i;
+	dev_dbg(&indio_dev->dev, "%s\n", __func__);
+
+	/* How much space will the demuxed element take? */
+	for_each_set_bit(i, buffer->scan_mask,
+			 indio_dev->masklength) {
+		ch = iio_find_channel_from_si(indio_dev, i);
+		length = ch->scan_type.storagebits/8;
+		bytes = ALIGN(bytes, length);
+		bytes += length;
+	}
+	if (buffer->scan_timestamp) {
+		ch = iio_find_channel_from_si(indio_dev,
+					      buffer->scan_index_timestamp);
+		length = ch->scan_type.storagebits/8;
+		bytes = ALIGN(bytes, length);
+		bytes += length;
+	}
+	buffer->access->set_bytes_per_datum(buffer, bytes);
+
+	/* What scan mask do we actually have ?*/
+	if (indio_dev->available_scan_masks)
+		indio_dev->active_scan_mask =
+			iio_scan_mask_match(indio_dev->available_scan_masks,
+					    indio_dev->masklength,
+					    buffer->scan_mask);
+	else
+		indio_dev->active_scan_mask = buffer->scan_mask;
+	iio_update_demux(indio_dev);
+
+	if (indio_dev->info->update_scan_mode)
+		return indio_dev->info
+			->update_scan_mode(indio_dev,
+					   indio_dev->active_scan_mask);
+	return 0;
+}
+EXPORT_SYMBOL(iio_sw_buffer_preenable);
+
 /**
  * iio_scan_mask_set() - set particular bit in the scan mask
  * @buffer: the buffer whose scan mask we are interested in
  * @bit: the bit to be set.
  **/
-int iio_scan_mask_set(struct iio_buffer *buffer, int bit)
+int iio_scan_mask_set(struct iio_dev *indio_dev,
+		      struct iio_buffer *buffer, int bit)
 {
-	struct iio_dev *indio_dev = buffer->indio_dev;
 	unsigned long *mask;
 	unsigned long *trialmask;
 
@@ -604,7 +581,6 @@ int iio_scan_mask_set(struct iio_buffer *buffer, int bit)
 		}
 	}
 	bitmap_copy(buffer->scan_mask, trialmask, indio_dev->masklength);
-	buffer->scan_count++;
 
 	kfree(trialmask);
 
@@ -612,25 +588,147 @@ int iio_scan_mask_set(struct iio_buffer *buffer, int bit)
 };
 EXPORT_SYMBOL_GPL(iio_scan_mask_set);
 
-int iio_scan_mask_query(struct iio_buffer *buffer, int bit)
+int iio_scan_mask_query(struct iio_dev *indio_dev,
+			struct iio_buffer *buffer, int bit)
 {
-	struct iio_dev *indio_dev = buffer->indio_dev;
-	long *mask;
-
 	if (bit > indio_dev->masklength)
 		return -EINVAL;
 
 	if (!buffer->scan_mask)
 		return 0;
-	if (indio_dev->available_scan_masks)
-		mask = iio_scan_mask_match(indio_dev->available_scan_masks,
-					   indio_dev->masklength,
-					   buffer->scan_mask);
-	else
-		mask = buffer->scan_mask;
-	if (!mask)
-		return 0;
 
-	return test_bit(bit, mask);
+	return test_bit(bit, buffer->scan_mask);
 };
 EXPORT_SYMBOL_GPL(iio_scan_mask_query);
+
+/**
+ * struct iio_demux_table() - table describing demux memcpy ops
+ * @from:	index to copy from
+ * @to:	index to copy to
+ * @length:	how many bytes to copy
+ * @l:		list head used for management
+ */
+struct iio_demux_table {
+	unsigned from;
+	unsigned to;
+	unsigned length;
+	struct list_head l;
+};
+
+static unsigned char *iio_demux(struct iio_buffer *buffer,
+				 unsigned char *datain)
+{
+	struct iio_demux_table *t;
+
+	if (list_empty(&buffer->demux_list))
+		return datain;
+	list_for_each_entry(t, &buffer->demux_list, l)
+		memcpy(buffer->demux_bounce + t->to,
+		       datain + t->from, t->length);
+
+	return buffer->demux_bounce;
+}
+
+int iio_push_to_buffer(struct iio_buffer *buffer, unsigned char *data,
+		       s64 timestamp)
+{
+	unsigned char *dataout = iio_demux(buffer, data);
+
+	return buffer->access->store_to(buffer, dataout, timestamp);
+}
+EXPORT_SYMBOL_GPL(iio_push_to_buffer);
+
+int iio_update_demux(struct iio_dev *indio_dev)
+{
+	const struct iio_chan_spec *ch;
+	struct iio_buffer *buffer = indio_dev->buffer;
+	int ret, in_ind = -1, out_ind, length;
+	unsigned in_loc = 0, out_loc = 0;
+	struct iio_demux_table *p, *q;
+
+	/* Clear out any old demux */
+	list_for_each_entry_safe(p, q, &buffer->demux_list, l) {
+		list_del(&p->l);
+		kfree(p);
+	}
+	kfree(buffer->demux_bounce);
+	buffer->demux_bounce = NULL;
+
+	/* First work out which scan mode we will actually have */
+	if (bitmap_equal(indio_dev->active_scan_mask,
+			 buffer->scan_mask,
+			 indio_dev->masklength))
+		return 0;
+
+	/* Now we have the two masks, work from least sig and build up sizes */
+	for_each_set_bit(out_ind,
+			 indio_dev->active_scan_mask,
+			 indio_dev->masklength) {
+		in_ind = find_next_bit(indio_dev->active_scan_mask,
+				       indio_dev->masklength,
+				       in_ind + 1);
+		while (in_ind != out_ind) {
+			in_ind = find_next_bit(indio_dev->active_scan_mask,
+					       indio_dev->masklength,
+					       in_ind + 1);
+			ch = iio_find_channel_from_si(indio_dev, in_ind);
+			length = ch->scan_type.storagebits/8;
+			/* Make sure we are aligned */
+			in_loc += length;
+			if (in_loc % length)
+				in_loc += length - in_loc % length;
+		}
+		p = kmalloc(sizeof(*p), GFP_KERNEL);
+		if (p == NULL) {
+			ret = -ENOMEM;
+			goto error_clear_mux_table;
+		}
+		ch = iio_find_channel_from_si(indio_dev, in_ind);
+		length = ch->scan_type.storagebits/8;
+		if (out_loc % length)
+			out_loc += length - out_loc % length;
+		if (in_loc % length)
+			in_loc += length - in_loc % length;
+		p->from = in_loc;
+		p->to = out_loc;
+		p->length = length;
+		list_add_tail(&p->l, &buffer->demux_list);
+		out_loc += length;
+		in_loc += length;
+	}
+	/* Relies on scan_timestamp being last */
+	if (buffer->scan_timestamp) {
+		p = kmalloc(sizeof(*p), GFP_KERNEL);
+		if (p == NULL) {
+			ret = -ENOMEM;
+			goto error_clear_mux_table;
+		}
+		ch = iio_find_channel_from_si(indio_dev,
+			buffer->scan_index_timestamp);
+		length = ch->scan_type.storagebits/8;
+		if (out_loc % length)
+			out_loc += length - out_loc % length;
+		if (in_loc % length)
+			in_loc += length - in_loc % length;
+		p->from = in_loc;
+		p->to = out_loc;
+		p->length = length;
+		list_add_tail(&p->l, &buffer->demux_list);
+		out_loc += length;
+		in_loc += length;
+	}
+	buffer->demux_bounce = kzalloc(out_loc, GFP_KERNEL);
+	if (buffer->demux_bounce == NULL) {
+		ret = -ENOMEM;
+		goto error_clear_mux_table;
+	}
+	return 0;
+
+error_clear_mux_table:
+	list_for_each_entry_safe(p, q, &buffer->demux_list, l) {
+		list_del(&p->l);
+		kfree(p);
+	}
+	return ret;
+}
+EXPORT_SYMBOL_GPL(iio_update_demux);
diff --git a/drivers/staging/iio/industrialio-core.c b/drivers/staging/iio/industrialio-core.c
index aec9311b108c..19f897f3c85e 100644
--- a/drivers/staging/iio/industrialio-core.c
+++ b/drivers/staging/iio/industrialio-core.c
@@ -25,8 +25,8 @@
 #include "iio.h"
 #include "iio_core.h"
 #include "iio_core_trigger.h"
-#include "chrdev.h"
 #include "sysfs.h"
+#include "events.h"
 
 /* IDA to assign each registered device a unique id*/
 static DEFINE_IDA(iio_ida);
@@ -77,17 +77,29 @@ static const char * const iio_modifier_names[] = {
 
 /* relies on pairs of these shared then separate */
 static const char * const iio_chan_info_postfix[] = {
-	[IIO_CHAN_INFO_SCALE_SHARED/2] = "scale",
-	[IIO_CHAN_INFO_OFFSET_SHARED/2] = "offset",
-	[IIO_CHAN_INFO_CALIBSCALE_SHARED/2] = "calibscale",
-	[IIO_CHAN_INFO_CALIBBIAS_SHARED/2] = "calibbias",
-	[IIO_CHAN_INFO_PEAK_SHARED/2] = "peak_raw",
-	[IIO_CHAN_INFO_PEAK_SCALE_SHARED/2] = "peak_scale",
-	[IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW_SHARED/2]
-	= "quadrature_correction_raw",
-	[IIO_CHAN_INFO_AVERAGE_RAW_SHARED/2] = "mean_raw",
+	[IIO_CHAN_INFO_SCALE] = "scale",
+	[IIO_CHAN_INFO_OFFSET] = "offset",
+	[IIO_CHAN_INFO_CALIBSCALE] = "calibscale",
+	[IIO_CHAN_INFO_CALIBBIAS] = "calibbias",
+	[IIO_CHAN_INFO_PEAK] = "peak_raw",
+	[IIO_CHAN_INFO_PEAK_SCALE] = "peak_scale",
+	[IIO_CHAN_INFO_QUADRATURE_CORRECTION_RAW] = "quadrature_correction_raw",
+	[IIO_CHAN_INFO_AVERAGE_RAW] = "mean_raw",
+	[IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY]
+	= "filter_low_pass_3db_frequency",
 };
 
+const struct iio_chan_spec
+*iio_find_channel_from_si(struct iio_dev *indio_dev, int si)
+{
+	int i;
+
+	for (i = 0; i < indio_dev->num_channels; i++)
+		if (indio_dev->channels[i].scan_index == si)
+			return &indio_dev->channels[i];
+	return NULL;
+}
+
 /**
  * struct iio_detected_event_list - list element for events that have occurred
  * @list:		linked list header
@@ -169,8 +181,11 @@ static ssize_t iio_event_chrdev_read(struct file *filep,
 {
 	struct iio_event_interface *ev_int = filep->private_data;
 	struct iio_detected_event_list *el;
+	size_t len = sizeof(el->ev);
 	int ret;
-	size_t len;
+
+	if (count < len)
+		return -EINVAL;
 
 	mutex_lock(&ev_int->event_list_lock);
 	if (list_empty(&ev_int->det_events)) {
@@ -192,7 +207,6 @@ static ssize_t iio_event_chrdev_read(struct file *filep,
 	el = list_first_entry(&ev_int->det_events,
 			      struct iio_detected_event_list,
 			      list);
-	len = sizeof el->ev;
 	if (copy_to_user(buf, &(el->ev), len)) {
 		ret = -EFAULT;
 		goto error_mutex_unlock;
@@ -415,7 +429,7 @@ int __iio_device_attr_init(struct device_attribute *dev_attr,
 	sysfs_attr_init(&dev_attr->attr);
 
 	/* Build up postfix of <extend_name>_<modifier>_postfix */
-	if (chan->modified) {
+	if (chan->modified && !generic) {
 		if (chan->extend_name)
 			full_postfix = kasprintf(GFP_KERNEL, "%s_%s_%s",
 						 iio_modifier_names[chan
@@ -600,7 +614,7 @@ static int iio_device_add_channel_sysfs(struct iio_dev *indio_dev,
 					     chan,
 					     &iio_read_channel_info,
 					     &iio_write_channel_info,
-					     (1 << i),
+					     i/2,
 					     !(i%2),
 					     &indio_dev->dev,
 					     &indio_dev->channel_attr_list);
@@ -665,10 +679,9 @@ static int iio_device_register_sysfs(struct iio_dev *indio_dev)
 	if (indio_dev->name)
 		attrcount++;
 
-	indio_dev->chan_attr_group.attrs
-		= kzalloc(sizeof(indio_dev->chan_attr_group.attrs[0])*
-			  (attrcount + 1),
-			  GFP_KERNEL);
+	indio_dev->chan_attr_group.attrs = kcalloc(attrcount + 1,
+						   sizeof(indio_dev->chan_attr_group.attrs[0]),
+						   GFP_KERNEL);
 	if (indio_dev->chan_attr_group.attrs == NULL) {
 		ret = -ENOMEM;
 		goto error_clear_attrs;
@@ -788,6 +801,9 @@ static ssize_t iio_ev_value_store(struct device *dev,
 	unsigned long val;
 	int ret;
 
+	if (!indio_dev->info->write_event_value)
+		return -EINVAL;
+
 	ret = strict_strtoul(buf, 10, &val);
 	if (ret)
 		return ret;
@@ -958,10 +974,9 @@ static int iio_device_register_eventset(struct iio_dev *indio_dev)
 	}
 
 	indio_dev->event_interface->group.name = iio_event_group_name;
-	indio_dev->event_interface->group.attrs =
-		kzalloc(sizeof(indio_dev->event_interface->group.attrs[0])
-			*(attrcount + 1),
-			GFP_KERNEL);
+	indio_dev->event_interface->group.attrs = kcalloc(attrcount + 1,
+							  sizeof(indio_dev->event_interface->group.attrs[0]),
+							  GFP_KERNEL);
 	if (indio_dev->event_interface->group.attrs == NULL) {
 		ret = -ENOMEM;
 		goto error_free_setup_event_lines;
@@ -1068,9 +1083,13 @@ static int iio_chrdev_open(struct inode *inode, struct file *filp)
 {
 	struct iio_dev *indio_dev = container_of(inode->i_cdev,
 						struct iio_dev, chrdev);
+
+	if (test_and_set_bit(IIO_BUSY_BIT_POS, &indio_dev->flags))
+		return -EBUSY;
+
 	filp->private_data = indio_dev;
 
-	return iio_chrdev_buffer_open(indio_dev);
+	return 0;
 }
 
 /**
@@ -1078,8 +1097,9 @@ static int iio_chrdev_open(struct inode *inode, struct file *filp)
  **/
 static int iio_chrdev_release(struct inode *inode, struct file *filp)
 {
-	iio_chrdev_buffer_release(container_of(inode->i_cdev,
-					     struct iio_dev, chrdev));
+	struct iio_dev *indio_dev = container_of(inode->i_cdev,
+						struct iio_dev, chrdev);
+	clear_bit(IIO_BUSY_BIT_POS, &indio_dev->flags);
 	return 0;
 }
 
diff --git a/drivers/staging/iio/industrialio-trigger.c b/drivers/staging/iio/industrialio-trigger.c
index 68a4d4e8c635..47ecadd4818d 100644
--- a/drivers/staging/iio/industrialio-trigger.c
+++ b/drivers/staging/iio/industrialio-trigger.c
@@ -159,13 +159,12 @@ EXPORT_SYMBOL(iio_trigger_generic_data_rdy_poll);
 void iio_trigger_poll_chained(struct iio_trigger *trig, s64 time)
 {
 	int i;
-	if (!trig->use_count) {
+	if (!trig->use_count)
 		for (i = 0; i < CONFIG_IIO_CONSUMERS_PER_TRIGGER; i++)
 			if (trig->subirqs[i].enabled) {
 				trig->use_count++;
 				handle_nested_irq(trig->subirq_base + i);
 			}
-	}
 }
 EXPORT_SYMBOL(iio_trigger_poll_chained);
 
@@ -173,10 +172,9 @@ void iio_trigger_notify_done(struct iio_trigger *trig)
 {
 	trig->use_count--;
 	if (trig->use_count == 0 && trig->ops && trig->ops->try_reenable)
-		if (trig->ops->try_reenable(trig)) {
+		if (trig->ops->try_reenable(trig))
 			/* Missed and interrupt so launch new poll now */
 			iio_trigger_poll(trig, 0);
-		}
 }
 EXPORT_SYMBOL(iio_trigger_notify_done);
 
@@ -222,8 +220,16 @@ static int iio_trigger_attach_poll_func(struct iio_trigger *trig,
 	ret = request_threaded_irq(pf->irq, pf->h, pf->thread,
 				   pf->type, pf->name,
 				   pf);
-	if (trig->ops && trig->ops->set_trigger_state && notinuse)
+	if (ret < 0) {
+		module_put(pf->indio_dev->info->driver_module);
+		return ret;
+	}
+
+	if (trig->ops && trig->ops->set_trigger_state && notinuse) {
 		ret = trig->ops->set_trigger_state(trig, true);
+		if (ret < 0)
+			module_put(pf->indio_dev->info->driver_module);
+	}
 
 	return ret;
 }
@@ -336,6 +342,8 @@ static ssize_t iio_trigger_write_current(struct device *dev,
 	mutex_unlock(&indio_dev->mlock);
 
 	trig = iio_trigger_find_by_name(buf, len);
+	if (oldtrig == trig)
+		return len;
 
 	if (trig && indio_dev->info->validate_trigger) {
 		ret = indio_dev->info->validate_trigger(indio_dev, trig);
@@ -473,12 +481,10 @@ void iio_free_trigger(struct iio_trigger *trig)
 }
 EXPORT_SYMBOL(iio_free_trigger);
 
-int iio_device_register_trigger_consumer(struct iio_dev *indio_dev)
+void iio_device_register_trigger_consumer(struct iio_dev *indio_dev)
 {
 	indio_dev->groups[indio_dev->groupcounter++] =
 		&iio_trigger_consumer_attr_group;
-
-	return 0;
 }
 
 void iio_device_unregister_trigger_consumer(struct iio_dev *indio_dev)
@@ -490,18 +496,14 @@ void iio_device_unregister_trigger_consumer(struct iio_dev *indio_dev)
 
 int iio_triggered_buffer_postenable(struct iio_dev *indio_dev)
 {
-	return indio_dev->trig
-		? iio_trigger_attach_poll_func(indio_dev->trig,
-					       indio_dev->pollfunc)
-		: 0;
+	return iio_trigger_attach_poll_func(indio_dev->trig,
+					    indio_dev->pollfunc);
 }
 EXPORT_SYMBOL(iio_triggered_buffer_postenable);
 
 int iio_triggered_buffer_predisable(struct iio_dev *indio_dev)
 {
-	return indio_dev->trig
-		? iio_trigger_dettach_poll_func(indio_dev->trig,
-						indio_dev->pollfunc)
-		: 0;
+	return iio_trigger_dettach_poll_func(indio_dev->trig,
+					     indio_dev->pollfunc);
 }
 EXPORT_SYMBOL(iio_triggered_buffer_predisable);
diff --git a/drivers/staging/iio/kfifo_buf.c b/drivers/staging/iio/kfifo_buf.c
index e8c234bb18f0..e1e9c06cde4a 100644
--- a/drivers/staging/iio/kfifo_buf.c
+++ b/drivers/staging/iio/kfifo_buf.c
@@ -11,9 +11,7 @@
 struct iio_kfifo {
 	struct iio_buffer buffer;
 	struct kfifo kf;
-	int use_count;
 	int update_needed;
-	struct mutex use_lock;
 };
 
 #define iio_to_kfifo(r) container_of(r, struct iio_kfifo, buffer)
@@ -33,54 +31,25 @@ static int iio_request_update_kfifo(struct iio_buffer *r)
 	int ret = 0;
 	struct iio_kfifo *buf = iio_to_kfifo(r);
 
-	mutex_lock(&buf->use_lock);
 	if (!buf->update_needed)
 		goto error_ret;
-	if (buf->use_count) {
-		ret = -EAGAIN;
-		goto error_ret;
-	}
 	kfifo_free(&buf->kf);
 	ret = __iio_allocate_kfifo(buf, buf->buffer.bytes_per_datum,
 				   buf->buffer.length);
 error_ret:
-	mutex_unlock(&buf->use_lock);
 	return ret;
 }
 
-static void iio_mark_kfifo_in_use(struct iio_buffer *r)
-{
-	struct iio_kfifo *buf = iio_to_kfifo(r);
-	mutex_lock(&buf->use_lock);
-	buf->use_count++;
-	mutex_unlock(&buf->use_lock);
-}
-
-static void iio_unmark_kfifo_in_use(struct iio_buffer *r)
-{
-	struct iio_kfifo *buf = iio_to_kfifo(r);
-	mutex_lock(&buf->use_lock);
-	buf->use_count--;
-	mutex_unlock(&buf->use_lock);
-}
-
 static int iio_get_length_kfifo(struct iio_buffer *r)
 {
 	return r->length;
 }
 
-static inline void __iio_init_kfifo(struct iio_kfifo *kf)
-{
-	mutex_init(&kf->use_lock);
-}
-
 static IIO_BUFFER_ENABLE_ATTR;
-static IIO_BUFFER_BYTES_PER_DATUM_ATTR;
 static IIO_BUFFER_LENGTH_ATTR;
 
 static struct attribute *iio_kfifo_attributes[] = {
 	&dev_attr_length.attr,
-	&dev_attr_bytes_per_datum.attr,
 	&dev_attr_enable.attr,
 	NULL,
 };
@@ -98,9 +67,8 @@ struct iio_buffer *iio_kfifo_allocate(struct iio_dev *indio_dev)
 	if (!kf)
 		return NULL;
 	kf->update_needed = true;
-	iio_buffer_init(&kf->buffer, indio_dev);
+	iio_buffer_init(&kf->buffer);
 	kf->buffer.attrs = &iio_kfifo_attribute_group;
-	__iio_init_kfifo(kf);
 
 	return &kf->buffer;
 }
@@ -111,20 +79,19 @@ static int iio_get_bytes_per_datum_kfifo(struct iio_buffer *r)
 	return r->bytes_per_datum;
 }
 
-static int iio_set_bytes_per_datum_kfifo(struct iio_buffer *r, size_t bpd)
+static int iio_mark_update_needed_kfifo(struct iio_buffer *r)
 {
-	if (r->bytes_per_datum != bpd) {
-		r->bytes_per_datum = bpd;
-		if (r->access->mark_param_change)
-			r->access->mark_param_change(r);
-	}
+	struct iio_kfifo *kf = iio_to_kfifo(r);
+	kf->update_needed = true;
 	return 0;
 }
 
-static int iio_mark_update_needed_kfifo(struct iio_buffer *r)
+static int iio_set_bytes_per_datum_kfifo(struct iio_buffer *r, size_t bpd)
 {
-	struct iio_kfifo *kf = iio_to_kfifo(r);
-	kf->update_needed = true;
+	if (r->bytes_per_datum != bpd) {
+		r->bytes_per_datum = bpd;
+		iio_mark_update_needed_kfifo(r);
+	}
 	return 0;
 }
 
@@ -132,8 +99,7 @@ static int iio_set_length_kfifo(struct iio_buffer *r, int length)
 {
 	if (r->length != length) {
 		r->length = length;
-		if (r->access->mark_param_change)
-			r->access->mark_param_change(r);
+		iio_mark_update_needed_kfifo(r);
 	}
 	return 0;
 }
@@ -150,16 +116,9 @@ static int iio_store_to_kfifo(struct iio_buffer *r,
 {
 	int ret;
 	struct iio_kfifo *kf = iio_to_kfifo(r);
-	u8 *datal = kmalloc(r->bytes_per_datum, GFP_KERNEL);
-	memcpy(datal, data, r->bytes_per_datum - sizeof(timestamp));
-	memcpy(datal + r->bytes_per_datum - sizeof(timestamp),
-		&timestamp, sizeof(timestamp));
 	ret = kfifo_in(&kf->kf, data, r->bytes_per_datum);
-	if (ret != r->bytes_per_datum) {
-		kfree(datal);
+	if (ret != r->bytes_per_datum)
 		return -EBUSY;
-	}
-	kfree(datal);
 	return 0;
 }
 
@@ -169,17 +128,18 @@ static int iio_read_first_n_kfifo(struct iio_buffer *r,
 	int ret, copied;
 	struct iio_kfifo *kf = iio_to_kfifo(r);
 
-	ret = kfifo_to_user(&kf->kf, buf, r->bytes_per_datum*n, &copied);
+	if (n < r->bytes_per_datum)
+		return -EINVAL;
+
+	n = rounddown(n, r->bytes_per_datum);
+	ret = kfifo_to_user(&kf->kf, buf, n, &copied);
 
 	return copied;
 }
 
 const struct iio_buffer_access_funcs kfifo_access_funcs = {
-	.mark_in_use = &iio_mark_kfifo_in_use,
-	.unmark_in_use = &iio_unmark_kfifo_in_use,
 	.store_to = &iio_store_to_kfifo,
 	.read_first_n = &iio_read_first_n_kfifo,
-	.mark_param_change = &iio_mark_update_needed_kfifo,
 	.request_update = &iio_request_update_kfifo,
 	.get_bytes_per_datum = &iio_get_bytes_per_datum_kfifo,
 	.set_bytes_per_datum = &iio_set_bytes_per_datum_kfifo,
diff --git a/drivers/staging/iio/kfifo_buf.h b/drivers/staging/iio/kfifo_buf.h
index a15598bb9fdb..cc2bd9a1ccfe 100644
--- a/drivers/staging/iio/kfifo_buf.h
+++ b/drivers/staging/iio/kfifo_buf.h
@@ -1,7 +1,7 @@
 
 #include <linux/kfifo.h>
 #include "iio.h"
-#include "buffer_generic.h"
+#include "buffer.h"
 
 extern const struct iio_buffer_access_funcs kfifo_access_funcs;
 
diff --git a/drivers/staging/iio/light/isl29018.c b/drivers/staging/iio/light/isl29018.c
index 47638362224b..849d6a564afa 100644
--- a/drivers/staging/iio/light/isl29018.c
+++ b/drivers/staging/iio/light/isl29018.c
@@ -362,8 +362,7 @@ static int isl29018_write_raw(struct iio_dev *indio_dev,
 	int ret = -EINVAL;
 
 	mutex_lock(&chip->lock);
-	if (mask == (1 << IIO_CHAN_INFO_CALIBSCALE_SEPARATE) &&
-	    chan->type == IIO_LIGHT) {
+	if (mask == IIO_CHAN_INFO_CALIBSCALE && chan->type == IIO_LIGHT) {
 		chip->lux_scale = val;
 		ret = 0;
 	}
@@ -402,7 +401,7 @@ static int isl29018_read_raw(struct iio_dev *indio_dev,
 		if (!ret)
 			ret = IIO_VAL_INT;
 		break;
-	case (1 << IIO_CHAN_INFO_CALIBSCALE_SEPARATE):
+	case IIO_CHAN_INFO_CALIBSCALE:
 		if (chan->type == IIO_LIGHT) {
 			*val = chip->lux_scale;
 			ret = IIO_VAL_INT;
@@ -421,7 +420,7 @@ static const struct iio_chan_spec isl29018_channels[] = {
 		.indexed = 1,
 		.channel = 0,
 		.processed_val = IIO_PROCESSED,
-		.info_mask = (1 << IIO_CHAN_INFO_CALIBSCALE_SEPARATE),
+		.info_mask = IIO_CHAN_INFO_CALIBSCALE_SEPARATE_BIT,
 	}, {
 		.type = IIO_INTENSITY,
 		.modified = 1,
diff --git a/drivers/staging/iio/light/tsl2563.c b/drivers/staging/iio/light/tsl2563.c
index 1942db13b03b..ffca85e81ef5 100644
--- a/drivers/staging/iio/light/tsl2563.c
+++ b/drivers/staging/iio/light/tsl2563.c
@@ -37,6 +37,7 @@
 
 #include "../iio.h"
 #include "../sysfs.h"
+#include "../events.h"
 #include "tsl2563.h"
 
 /* Use this many bits for fraction part. */
@@ -226,6 +227,8 @@ static int tsl2563_read_id(struct tsl2563_chip *chip, u8 *id)
 	if (ret < 0)
 		return ret;
 
+	*id = ret;
+
 	return 0;
 }
 
@@ -510,7 +513,7 @@ static int tsl2563_read_raw(struct iio_dev *indio_dev,
 		}
 		break;
 
-	case (1 << IIO_CHAN_INFO_CALIBSCALE_SEPARATE):
+	case IIO_CHAN_INFO_CALIBSCALE:
 		if (chan->channel == 0)
 			*val = calib_to_sysfs(chip->calib0);
 		else
@@ -536,7 +539,7 @@ static const struct iio_chan_spec tsl2563_channels[] = {
 		.type = IIO_INTENSITY,
 		.modified = 1,
 		.channel2 = IIO_MOD_LIGHT_BOTH,
-		.info_mask = (1 << IIO_CHAN_INFO_CALIBSCALE_SEPARATE),
+		.info_mask = IIO_CHAN_INFO_CALIBSCALE_SEPARATE_BIT,
 		.event_mask = (IIO_EV_BIT(IIO_EV_TYPE_THRESH,
 					  IIO_EV_DIR_RISING) |
 			       IIO_EV_BIT(IIO_EV_TYPE_THRESH,
@@ -544,8 +547,8 @@ static const struct iio_chan_spec tsl2563_channels[] = {
 	}, {
 		.type = IIO_INTENSITY,
 		.modified = 1,
-		.channel2 = IIO_MOD_LIGHT_BOTH,
-		.info_mask = (1 << IIO_CHAN_INFO_CALIBSCALE_SEPARATE),
+		.channel2 = IIO_MOD_LIGHT_IR,
+		.info_mask = IIO_CHAN_INFO_CALIBSCALE_SEPARATE_BIT,
 	}
 };
 
diff --git a/drivers/staging/iio/light/tsl2583.c b/drivers/staging/iio/light/tsl2583.c
index 3836f73a5296..5b6455a238d8 100644
--- a/drivers/staging/iio/light/tsl2583.c
+++ b/drivers/staging/iio/light/tsl2583.c
@@ -194,6 +194,7 @@ static int taos_get_lux(struct iio_dev *indio_dev)
 {
 	u16 ch0, ch1; /* separated ch0/ch1 data from device */
 	u32 lux; /* raw lux calculated from device data */
+	u64 lux64;
 	u32 ratio;
 	u8 buf[5];
 	struct taos_lux *p;
@@ -297,9 +298,19 @@ static int taos_get_lux(struct iio_dev *indio_dev)
 		lux = (lux + (chip->als_time_scale >> 1)) /
 			chip->als_time_scale;
 
-	/* adjust for active gain scale */
-	lux >>= 13; /* tables have factor of 8192 builtin for accuracy */
-	lux = (lux * chip->taos_settings.als_gain_trim + 500) / 1000;
+	/* Adjust for active gain scale.
+	 * The taos_device_lux tables above have a factor of 8192 built in,
+	 * so we need to shift right.
+	 * User-specified gain provides a multiplier.
+	 * Apply user-specified gain before shifting right to retain precision.
+	 * Use 64 bits to avoid overflow on multiplication.
+	 * Then go back to 32 bits before division to avoid using div_u64().
+	 */
+	lux64 = lux;
+	lux64 = lux64 * chip->taos_settings.als_gain_trim;
+	lux64 >>= 13;
+	lux = lux64;
+	lux = (lux + 500) / 1000;
 	if (lux > TSL258X_LUX_CALC_OVER_FLOW) { /* check for overflow */
 return_max:
 		lux = TSL258X_LUX_CALC_OVER_FLOW;
diff --git a/drivers/staging/iio/magnetometer/ak8975.c b/drivers/staging/iio/magnetometer/ak8975.c
index db31d6d0e5b6..3158f12cb051 100644
--- a/drivers/staging/iio/magnetometer/ak8975.c
+++ b/drivers/staging/iio/magnetometer/ak8975.c
@@ -431,7 +431,7 @@ static int ak8975_read_raw(struct iio_dev *indio_dev,
 	switch (mask) {
 	case 0:
 		return ak8975_read_axis(indio_dev, chan->address, val);
-	case (1 << IIO_CHAN_INFO_SCALE_SEPARATE):
+	case IIO_CHAN_INFO_SCALE:
 		*val = data->raw_to_gauss[chan->address];
 		return IIO_VAL_INT;
 	}
@@ -443,7 +443,7 @@ static int ak8975_read_raw(struct iio_dev *indio_dev,
 		.type = IIO_MAGN,					\
 		.modified = 1,						\
 		.channel2 = IIO_MOD_##axis,				\
-		.info_mask = (1 << IIO_CHAN_INFO_SCALE_SEPARATE),	\
+		.info_mask = IIO_CHAN_INFO_SCALE_SEPARATE_BIT,	\
 		.address = index,					\
 	}
 
diff --git a/drivers/staging/iio/magnetometer/hmc5843.c b/drivers/staging/iio/magnetometer/hmc5843.c
index 7bb1bc605136..f2e85a9cf196 100644
--- a/drivers/staging/iio/magnetometer/hmc5843.c
+++ b/drivers/staging/iio/magnetometer/hmc5843.c
@@ -463,7 +463,7 @@ static int hmc5843_read_raw(struct iio_dev *indio_dev,
 		return hmc5843_read_measurement(indio_dev,
 						chan->address,
 						val);
-	case (1 << IIO_CHAN_INFO_SCALE_SHARED):
+	case IIO_CHAN_INFO_SCALE:
 		*val = 0;
 		*val2 = hmc5843_regval_to_nanoscale[data->range];
 		return IIO_VAL_INT_PLUS_NANO;
@@ -476,7 +476,7 @@ static int hmc5843_read_raw(struct iio_dev *indio_dev,
 		.type = IIO_MAGN,					\
 		.modified = 1,						\
 		.channel2 = IIO_MOD_##axis,				\
-		.info_mask = (1 << IIO_CHAN_INFO_SCALE_SHARED),		\
+		.info_mask = IIO_CHAN_INFO_SCALE_SHARED_BIT,		\
 		.address = add						\
 	}
 
@@ -605,6 +605,7 @@ static const struct i2c_device_id hmc5843_id[] = {
 	{ "hmc5843", 0 },
 	{ }
 };
+MODULE_DEVICE_TABLE(i2c, hmc5843_id);
 
 static struct i2c_driver hmc5843_driver = {
 	.driver = {
diff --git a/drivers/staging/iio/meter/ade7753.c b/drivers/staging/iio/meter/ade7753.c
index 4c7b0cbf49fa..57baac6c0d40 100644
--- a/drivers/staging/iio/meter/ade7753.c
+++ b/drivers/staging/iio/meter/ade7753.c
@@ -582,3 +582,4 @@ module_spi_driver(ade7753_driver);
 MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
 MODULE_DESCRIPTION("Analog Devices ADE7753/6 Single-Phase Multifunction Meter");
 MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("spi:ade7753");
diff --git a/drivers/staging/iio/meter/ade7754.c b/drivers/staging/iio/meter/ade7754.c
index 15c98cde76d1..8d81c92007e9 100644
--- a/drivers/staging/iio/meter/ade7754.c
+++ b/drivers/staging/iio/meter/ade7754.c
@@ -605,3 +605,4 @@ module_spi_driver(ade7754_driver);
 MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
 MODULE_DESCRIPTION("Analog Devices ADE7754 Polyphase Multifunction Energy Metering IC Driver");
 MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("spi:ad7754");
diff --git a/drivers/staging/iio/meter/ade7758_core.c b/drivers/staging/iio/meter/ade7758_core.c
index 39338bcb1872..dcb20294dfe8 100644
--- a/drivers/staging/iio/meter/ade7758_core.c
+++ b/drivers/staging/iio/meter/ade7758_core.c
@@ -20,7 +20,7 @@
 
 #include "../iio.h"
 #include "../sysfs.h"
-#include "../buffer_generic.h"
+#include "../buffer.h"
 #include "meter.h"
 #include "ade7758.h"
 
@@ -663,63 +663,63 @@ static const struct attribute_group ade7758_attribute_group = {
 
 static struct iio_chan_spec ade7758_channels[] = {
 	IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, "raw", 0, 0,
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		AD7758_WT(AD7758_PHASE_A, AD7758_VOLTAGE),
 		0, IIO_ST('s', 24, 32, 0), 0),
 	IIO_CHAN(IIO_CURRENT, 0, 1, 0, "raw", 0, 0,
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		AD7758_WT(AD7758_PHASE_A, AD7758_CURRENT),
 		1, IIO_ST('s', 24, 32, 0), 0),
 	IIO_CHAN(IIO_POWER, 0, 1, 0, "apparent_raw", 0, 0,
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		AD7758_WT(AD7758_PHASE_A, AD7758_APP_PWR),
 		2, IIO_ST('s', 24, 32, 0), 0),
 	IIO_CHAN(IIO_POWER, 0, 1, 0, "active_raw", 0, 0,
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		AD7758_WT(AD7758_PHASE_A, AD7758_ACT_PWR),
 		3, IIO_ST('s', 24, 32, 0), 0),
 	IIO_CHAN(IIO_POWER, 0, 1, 0, "reactive_raw", 0, 0,
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		AD7758_WT(AD7758_PHASE_A, AD7758_REACT_PWR),
 		4, IIO_ST('s', 24, 32, 0), 0),
 	IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, "raw", 1, 0,
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		AD7758_WT(AD7758_PHASE_B, AD7758_VOLTAGE),
 		5, IIO_ST('s', 24, 32, 0), 0),
 	IIO_CHAN(IIO_CURRENT, 0, 1, 0, "raw", 1, 0,
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		AD7758_WT(AD7758_PHASE_B, AD7758_CURRENT),
 		6, IIO_ST('s', 24, 32, 0), 0),
 	IIO_CHAN(IIO_POWER, 0, 1, 0, "apparent_raw", 1, 0,
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		AD7758_WT(AD7758_PHASE_B, AD7758_APP_PWR),
 		7, IIO_ST('s', 24, 32, 0), 0),
 	IIO_CHAN(IIO_POWER, 0, 1, 0, "active_raw", 1, 0,
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		AD7758_WT(AD7758_PHASE_B, AD7758_ACT_PWR),
 		8, IIO_ST('s', 24, 32, 0), 0),
 	IIO_CHAN(IIO_POWER, 0, 1, 0, "reactive_raw", 1, 0,
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		AD7758_WT(AD7758_PHASE_B, AD7758_REACT_PWR),
 		9, IIO_ST('s', 24, 32, 0), 0),
 	IIO_CHAN(IIO_VOLTAGE, 0, 1, 0, "raw", 2, 0,
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		AD7758_WT(AD7758_PHASE_C, AD7758_VOLTAGE),
 		10, IIO_ST('s', 24, 32, 0), 0),
 	IIO_CHAN(IIO_CURRENT, 0, 1, 0, "raw", 2, 0,
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		AD7758_WT(AD7758_PHASE_C, AD7758_CURRENT),
 		11, IIO_ST('s', 24, 32, 0), 0),
 	IIO_CHAN(IIO_POWER, 0, 1, 0, "apparent_raw", 2, 0,
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		AD7758_WT(AD7758_PHASE_C, AD7758_APP_PWR),
 		12, IIO_ST('s', 24, 32, 0), 0),
 	IIO_CHAN(IIO_POWER, 0, 1, 0, "active_raw", 2, 0,
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		AD7758_WT(AD7758_PHASE_C, AD7758_ACT_PWR),
 		13, IIO_ST('s', 24, 32, 0), 0),
 	IIO_CHAN(IIO_POWER, 0, 1, 0, "reactive_raw", 2, 0,
-		(1 << IIO_CHAN_INFO_SCALE_SHARED),
+		IIO_CHAN_INFO_SCALE_SHARED_BIT,
 		AD7758_WT(AD7758_PHASE_C, AD7758_REACT_PWR),
 		14, IIO_ST('s', 24, 32, 0), 0),
 	IIO_CHAN_SOFT_TIMESTAMP(15),
@@ -746,12 +746,12 @@ static int __devinit ade7758_probe(struct spi_device *spi)
 	spi_set_drvdata(spi, indio_dev);
 
 	/* Allocate the comms buffers */
-	st->rx = kzalloc(sizeof(*st->rx)*ADE7758_MAX_RX, GFP_KERNEL);
+	st->rx = kcalloc(ADE7758_MAX_RX, sizeof(*st->rx), GFP_KERNEL);
 	if (st->rx == NULL) {
 		ret = -ENOMEM;
 		goto error_free_dev;
 	}
-	st->tx = kzalloc(sizeof(*st->tx)*ADE7758_MAX_TX, GFP_KERNEL);
+	st->tx = kcalloc(ADE7758_MAX_TX, sizeof(*st->tx), GFP_KERNEL);
 	if (st->tx == NULL) {
 		ret = -ENOMEM;
 		goto error_free_rx;
@@ -843,6 +843,7 @@ static const struct spi_device_id ade7758_id[] = {
 	{"ade7758", 0},
 	{}
 };
+MODULE_DEVICE_TABLE(spi, ade7758_id);
 
 static struct spi_driver ade7758_driver = {
 	.driver = {
diff --git a/drivers/staging/iio/meter/ade7758_ring.c b/drivers/staging/iio/meter/ade7758_ring.c
index 00fa2ac5c459..f29f2b278fe4 100644
--- a/drivers/staging/iio/meter/ade7758_ring.c
+++ b/drivers/staging/iio/meter/ade7758_ring.c
@@ -67,7 +67,7 @@ static irqreturn_t ade7758_trigger_handler(int irq, void *p)
 	s64 dat64[2];
 	u32 *dat32 = (u32 *)dat64;
 
-	if (ring->scan_count)
+	if (!bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength))
 		if (ade7758_spi_read_burst(&indio_dev->dev) >= 0)
 			*dat32 = get_unaligned_be32(&st->rx_buf[5]) & 0xFFFFFF;
 
@@ -96,10 +96,11 @@ static int ade7758_ring_preenable(struct iio_dev *indio_dev)
 	size_t d_size;
 	unsigned channel;
 
-	if (!ring->scan_count)
+	if (!bitmap_empty(indio_dev->active_scan_mask, indio_dev->masklength))
 		return -EINVAL;
 
-	channel = find_first_bit(ring->scan_mask, indio_dev->masklength);
+	channel = find_first_bit(indio_dev->active_scan_mask,
+				 indio_dev->masklength);
 
 	d_size = st->ade7758_ring_channels[channel].scan_type.storagebits / 8;
 
@@ -145,8 +146,7 @@ int ade7758_configure_ring(struct iio_dev *indio_dev)
 
 	/* Effectively select the ring buffer implementation */
 	indio_dev->buffer->access = &ring_sw_access_funcs;
-	indio_dev->buffer->setup_ops = &ade7758_ring_setup_ops;
-	indio_dev->buffer->owner = THIS_MODULE;
+	indio_dev->setup_ops = &ade7758_ring_setup_ops;
 
 	indio_dev->pollfunc = iio_alloc_pollfunc(&iio_pollfunc_store_time,
 						 &ade7758_trigger_handler,
diff --git a/drivers/staging/iio/meter/ade7759.c b/drivers/staging/iio/meter/ade7759.c
index cfa2a5eff122..0beab478dcd9 100644
--- a/drivers/staging/iio/meter/ade7759.c
+++ b/drivers/staging/iio/meter/ade7759.c
@@ -526,3 +526,4 @@ module_spi_driver(ade7759_driver);
 MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
 MODULE_DESCRIPTION("Analog Devices ADE7759 Active Energy Metering IC Driver");
 MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("spi:ad7759");
diff --git a/drivers/staging/iio/meter/ade7854-spi.c b/drivers/staging/iio/meter/ade7854-spi.c
index c485a79aeec3..81121862c1bd 100644
--- a/drivers/staging/iio/meter/ade7854-spi.c
+++ b/drivers/staging/iio/meter/ade7854-spi.c
@@ -343,6 +343,7 @@ static const struct spi_device_id ade7854_id[] = {
 	{ "ade7878", 0 },
 	{ }
 };
+MODULE_DEVICE_TABLE(spi, ade7854_id);
 
 static struct spi_driver ade7854_driver = {
 	.driver = {
diff --git a/drivers/staging/iio/resolver/ad2s1200.c b/drivers/staging/iio/resolver/ad2s1200.c
index 1c6a02bfd45d..d8ce854c1897 100644
--- a/drivers/staging/iio/resolver/ad2s1200.c
+++ b/drivers/staging/iio/resolver/ad2s1200.c
@@ -160,6 +160,7 @@ static const struct spi_device_id ad2s1200_id[] = {
 	{ "ad2s1205" },
 	{}
 };
+MODULE_DEVICE_TABLE(spi, ad2s1200_id);
 
 static struct spi_driver ad2s1200_driver = {
 	.driver = {
diff --git a/drivers/staging/iio/resolver/ad2s1210.c b/drivers/staging/iio/resolver/ad2s1210.c
index ff1b3316d016..c439fcf72be7 100644
--- a/drivers/staging/iio/resolver/ad2s1210.c
+++ b/drivers/staging/iio/resolver/ad2s1210.c
@@ -749,6 +749,7 @@ static const struct spi_device_id ad2s1210_id[] = {
 	{ "ad2s1210" },
 	{}
 };
+MODULE_DEVICE_TABLE(spi, ad2s1210_id);
 
 static struct spi_driver ad2s1210_driver = {
 	.driver = {
diff --git a/drivers/staging/iio/resolver/ad2s90.c b/drivers/staging/iio/resolver/ad2s90.c
index 6d0794389e74..2a86f582ddf1 100644
--- a/drivers/staging/iio/resolver/ad2s90.c
+++ b/drivers/staging/iio/resolver/ad2s90.c
@@ -109,6 +109,7 @@ static const struct spi_device_id ad2s90_id[] = {
 	{ "ad2s90" },
 	{}
 };
+MODULE_DEVICE_TABLE(spi, ad2s90_id);
 
 static struct spi_driver ad2s90_driver = {
 	.driver = {
diff --git a/drivers/staging/iio/ring_sw.c b/drivers/staging/iio/ring_sw.c
index 66a34addb75f..3e24ec455854 100644
--- a/drivers/staging/iio/ring_sw.c
+++ b/drivers/staging/iio/ring_sw.c
@@ -23,11 +23,8 @@
  * @data:		the ring buffer memory
  * @read_p:		read pointer (oldest available)
  * @write_p:		write pointer
- * @last_written_p:	read pointer (newest available)
  * @half_p:		half buffer length behind write_p (event generation)
- * @use_count:		reference count to prevent resizing when in use
  * @update_needed:	flag to indicated change in size requested
- * @use_lock:		lock to prevent change in size when in use
  *
  * Note that the first element of all ring buffers must be a
  * struct iio_buffer.
@@ -37,12 +34,9 @@ struct iio_sw_ring_buffer {
 	unsigned char		*data;
 	unsigned char		*read_p;
 	unsigned char		*write_p;
-	unsigned char		*last_written_p;
 	/* used to act as a point at which to signal an event */
 	unsigned char		*half_p;
-	int			use_count;
 	int			update_needed;
-	spinlock_t		use_lock;
 };
 
 #define iio_to_sw_ring(r) container_of(r, struct iio_sw_ring_buffer, buf)
@@ -56,38 +50,15 @@ static inline int __iio_allocate_sw_ring_buffer(struct iio_sw_ring_buffer *ring,
 	ring->data = kmalloc(length*ring->buf.bytes_per_datum, GFP_ATOMIC);
 	ring->read_p = NULL;
 	ring->write_p = NULL;
-	ring->last_written_p = NULL;
 	ring->half_p = NULL;
 	return ring->data ? 0 : -ENOMEM;
 }
 
-static inline void __iio_init_sw_ring_buffer(struct iio_sw_ring_buffer *ring)
-{
-	spin_lock_init(&ring->use_lock);
-}
-
 static inline void __iio_free_sw_ring_buffer(struct iio_sw_ring_buffer *ring)
 {
 	kfree(ring->data);
 }
 
-static void iio_mark_sw_rb_in_use(struct iio_buffer *r)
-{
-	struct iio_sw_ring_buffer *ring = iio_to_sw_ring(r);
-	spin_lock(&ring->use_lock);
-	ring->use_count++;
-	spin_unlock(&ring->use_lock);
-}
-
-static void iio_unmark_sw_rb_in_use(struct iio_buffer *r)
-{
-	struct iio_sw_ring_buffer *ring = iio_to_sw_ring(r);
-	spin_lock(&ring->use_lock);
-	ring->use_count--;
-	spin_unlock(&ring->use_lock);
-}
-
-
 /* Ring buffer related functionality */
 /* Store to ring is typically called in the bh of a data ready interrupt handler
  * in the device driver */
@@ -115,7 +86,6 @@ static int iio_store_to_sw_ring(struct iio_sw_ring_buffer *ring,
 	 * Always valid as either points to latest or second latest value.
 	 * Before this runs it is null and read attempts fail with -EAGAIN.
 	 */
-	ring->last_written_p = ring->write_p;
 	barrier();
 	/* temp_ptr used to ensure we never have an invalid pointer
 	 * it may be slightly lagging, but never invalid
@@ -174,6 +144,7 @@ static int iio_read_first_n_sw_rb(struct iio_buffer *r,
 	u8 *initial_read_p, *initial_write_p, *current_read_p, *end_read_p;
 	u8 *data;
 	int ret, max_copied, bytes_to_rip, dead_offset;
+	size_t data_available, buffer_size;
 
 	/* A userspace program has probably made an error if it tries to
 	 *  read something that is not a whole number of bpds.
@@ -186,9 +157,11 @@ static int iio_read_first_n_sw_rb(struct iio_buffer *r,
 		       n, ring->buf.bytes_per_datum);
 		goto error_ret;
 	}
+
+	buffer_size = ring->buf.bytes_per_datum*ring->buf.length;
+
 	/* Limit size to whole of ring buffer */
-	bytes_to_rip = min((size_t)(ring->buf.bytes_per_datum*ring->buf.length),
-			   n);
+	bytes_to_rip = min_t(size_t, buffer_size, n);
 
 	data = kmalloc(bytes_to_rip, GFP_KERNEL);
 	if (data == NULL) {
@@ -217,38 +190,24 @@ static int iio_read_first_n_sw_rb(struct iio_buffer *r,
 		goto error_free_data_cpy;
 	}
 
-	if (initial_write_p >= initial_read_p + bytes_to_rip) {
-		/* write_p is greater than necessary, all is easy */
-		max_copied = bytes_to_rip;
-		memcpy(data, initial_read_p, max_copied);
-		end_read_p = initial_read_p + max_copied;
-	} else if (initial_write_p > initial_read_p) {
-		/*not enough data to cpy */
-		max_copied = initial_write_p - initial_read_p;
+	if (initial_write_p >= initial_read_p)
+		data_available = initial_write_p - initial_read_p;
+	else
+		data_available = buffer_size - (initial_read_p - initial_write_p);
+
+	if (data_available < bytes_to_rip)
+		bytes_to_rip = data_available;
+
+	if (initial_read_p + bytes_to_rip >= ring->data + buffer_size) {
+		max_copied = ring->data + buffer_size - initial_read_p;
 		memcpy(data, initial_read_p, max_copied);
-		end_read_p = initial_write_p;
+		memcpy(data + max_copied, ring->data, bytes_to_rip - max_copied);
+		end_read_p = ring->data + bytes_to_rip - max_copied;
 	} else {
-		/* going through 'end' of ring buffer */
-		max_copied = ring->data
-			+ ring->buf.length*ring->buf.bytes_per_datum - initial_read_p;
-		memcpy(data, initial_read_p, max_copied);
-		/* possible we are done if we align precisely with end */
-		if (max_copied == bytes_to_rip)
-			end_read_p = ring->data;
-		else if (initial_write_p
-			 > ring->data + bytes_to_rip - max_copied) {
-			/* enough data to finish */
-			memcpy(data + max_copied, ring->data,
-			       bytes_to_rip - max_copied);
-			max_copied = bytes_to_rip;
-			end_read_p = ring->data + (bytes_to_rip - max_copied);
-		} else {  /* not enough data */
-			memcpy(data + max_copied, ring->data,
-			       initial_write_p - ring->data);
-			max_copied += initial_write_p - ring->data;
-			end_read_p = initial_write_p;
-		}
+		memcpy(data, initial_read_p, bytes_to_rip);
+		end_read_p = initial_read_p + bytes_to_rip;
 	}
+
 	/* Now to verify which section was cleanly copied - i.e. how far
 	 * read pointer has been pushed */
 	current_read_p = ring->read_p;
@@ -256,15 +215,14 @@ static int iio_read_first_n_sw_rb(struct iio_buffer *r,
 	if (initial_read_p <= current_read_p)
 		dead_offset = current_read_p - initial_read_p;
 	else
-		dead_offset = ring->buf.length*ring->buf.bytes_per_datum
-			- (initial_read_p - current_read_p);
+		dead_offset = buffer_size - (initial_read_p - current_read_p);
 
 	/* possible issue if the initial write has been lapped or indeed
 	 * the point we were reading to has been passed */
 	/* No valid data read.
 	 * In this case the read pointer is already correct having been
 	 * pushed further than we would look. */
-	if (max_copied - dead_offset < 0) {
+	if (bytes_to_rip - dead_offset < 0) {
 		ret = 0;
 		goto error_free_data_cpy;
 	}
@@ -280,7 +238,7 @@ static int iio_read_first_n_sw_rb(struct iio_buffer *r,
 	while (ring->read_p != end_read_p)
 		ring->read_p = end_read_p;
 
-	ret = max_copied - dead_offset;
+	ret = bytes_to_rip - dead_offset;
 
 	if (copy_to_user(buf, data + dead_offset, ret))  {
 		ret =  -EFAULT;
@@ -305,52 +263,18 @@ static int iio_store_to_sw_rb(struct iio_buffer *r,
 	return iio_store_to_sw_ring(ring, data, timestamp);
 }
 
-static int iio_read_last_from_sw_ring(struct iio_sw_ring_buffer *ring,
-				      unsigned char *data)
-{
-	unsigned char *last_written_p_copy;
-
-	iio_mark_sw_rb_in_use(&ring->buf);
-again:
-	barrier();
-	last_written_p_copy = ring->last_written_p;
-	barrier(); /*unnessecary? */
-	/* Check there is anything here */
-	if (last_written_p_copy == NULL)
-		return -EAGAIN;
-	memcpy(data, last_written_p_copy, ring->buf.bytes_per_datum);
-
-	if (unlikely(ring->last_written_p != last_written_p_copy))
-		goto again;
-
-	iio_unmark_sw_rb_in_use(&ring->buf);
-	return 0;
-}
-
-static int iio_read_last_from_sw_rb(struct iio_buffer *r,
-			     unsigned char *data)
-{
-	return iio_read_last_from_sw_ring(iio_to_sw_ring(r), data);
-}
-
 static int iio_request_update_sw_rb(struct iio_buffer *r)
 {
 	int ret = 0;
 	struct iio_sw_ring_buffer *ring = iio_to_sw_ring(r);
 
 	r->stufftoread = false;
-	spin_lock(&ring->use_lock);
 	if (!ring->update_needed)
 		goto error_ret;
-	if (ring->use_count) {
-		ret = -EAGAIN;
-		goto error_ret;
-	}
 	__iio_free_sw_ring_buffer(ring);
 	ret = __iio_allocate_sw_ring_buffer(ring, ring->buf.bytes_per_datum,
 					    ring->buf.length);
 error_ret:
-	spin_unlock(&ring->use_lock);
 	return ret;
 }
 
@@ -360,12 +284,18 @@ static int iio_get_bytes_per_datum_sw_rb(struct iio_buffer *r)
 	return ring->buf.bytes_per_datum;
 }
 
+static int iio_mark_update_needed_sw_rb(struct iio_buffer *r)
+{
+	struct iio_sw_ring_buffer *ring = iio_to_sw_ring(r);
+	ring->update_needed = true;
+	return 0;
+}
+
 static int iio_set_bytes_per_datum_sw_rb(struct iio_buffer *r, size_t bpd)
 {
 	if (r->bytes_per_datum != bpd) {
 		r->bytes_per_datum = bpd;
-		if (r->access->mark_param_change)
-			r->access->mark_param_change(r);
+		iio_mark_update_needed_sw_rb(r);
 	}
 	return 0;
 }
@@ -379,27 +309,17 @@ static int iio_set_length_sw_rb(struct iio_buffer *r, int length)
 {
 	if (r->length != length) {
 		r->length = length;
-		if (r->access->mark_param_change)
-			r->access->mark_param_change(r);
+		iio_mark_update_needed_sw_rb(r);
 	}
 	return 0;
 }
 
-static int iio_mark_update_needed_sw_rb(struct iio_buffer *r)
-{
-	struct iio_sw_ring_buffer *ring = iio_to_sw_ring(r);
-	ring->update_needed = true;
-	return 0;
-}
-
 static IIO_BUFFER_ENABLE_ATTR;
-static IIO_BUFFER_BYTES_PER_DATUM_ATTR;
 static IIO_BUFFER_LENGTH_ATTR;
 
 /* Standard set of ring buffer attributes */
 static struct attribute *iio_ring_attributes[] = {
 	&dev_attr_length.attr,
-	&dev_attr_bytes_per_datum.attr,
 	&dev_attr_enable.attr,
 	NULL,
 };
@@ -419,8 +339,7 @@ struct iio_buffer *iio_sw_rb_allocate(struct iio_dev *indio_dev)
 		return NULL;
 	ring->update_needed = true;
 	buf = &ring->buf;
-	iio_buffer_init(buf, indio_dev);
-	__iio_init_sw_ring_buffer(ring);
+	iio_buffer_init(buf);
 	buf->attrs = &iio_ring_attribute_group;
 
 	return buf;
@@ -434,12 +353,8 @@ void iio_sw_rb_free(struct iio_buffer *r)
 EXPORT_SYMBOL(iio_sw_rb_free);
 
 const struct iio_buffer_access_funcs ring_sw_access_funcs = {
-	.mark_in_use = &iio_mark_sw_rb_in_use,
-	.unmark_in_use = &iio_unmark_sw_rb_in_use,
 	.store_to = &iio_store_to_sw_rb,
-	.read_last = &iio_read_last_from_sw_rb,
 	.read_first_n = &iio_read_first_n_sw_rb,
-	.mark_param_change = &iio_mark_update_needed_sw_rb,
 	.request_update = &iio_request_update_sw_rb,
 	.get_bytes_per_datum = &iio_get_bytes_per_datum_sw_rb,
 	.set_bytes_per_datum = &iio_set_bytes_per_datum_sw_rb,
diff --git a/drivers/staging/iio/ring_sw.h b/drivers/staging/iio/ring_sw.h
index a3e15784c225..e6a6e2c40960 100644
--- a/drivers/staging/iio/ring_sw.h
+++ b/drivers/staging/iio/ring_sw.h
@@ -23,7 +23,7 @@
 
 #ifndef _IIO_RING_SW_H_
 #define _IIO_RING_SW_H_
-#include "buffer_generic.h"
+#include "buffer.h"
 
 /**
  * ring_sw_access_funcs - access functions for a software ring buffer
diff --git a/drivers/staging/iio/sysfs.h b/drivers/staging/iio/sysfs.h
index 868952b5ba63..bfedb73b850e 100644
--- a/drivers/staging/iio/sysfs.h
+++ b/drivers/staging/iio/sysfs.h
@@ -114,47 +114,4 @@ struct iio_const_attr {
 #define IIO_CONST_ATTR_TEMP_SCALE(_string)		\
 	IIO_CONST_ATTR(in_temp_scale, _string)
 
-enum iio_event_type {
-	IIO_EV_TYPE_THRESH,
-	IIO_EV_TYPE_MAG,
-	IIO_EV_TYPE_ROC,
-	IIO_EV_TYPE_THRESH_ADAPTIVE,
-	IIO_EV_TYPE_MAG_ADAPTIVE,
-};
-
-enum iio_event_direction {
-	IIO_EV_DIR_EITHER,
-	IIO_EV_DIR_RISING,
-	IIO_EV_DIR_FALLING,
-};
-
-#define IIO_EVENT_CODE(chan_type, diff, modifier, direction,		\
-		       type, chan, chan1, chan2)			\
-	(((u64)type << 56) | ((u64)diff << 55) |			\
-	 ((u64)direction << 48) | ((u64)modifier << 40) |		\
-	 ((u64)chan_type << 32) | (chan2 << 16) | chan1 | chan)
-
-#define IIO_EV_DIR_MAX 4
-#define IIO_EV_BIT(type, direction)			\
-	(1 << (type*IIO_EV_DIR_MAX + direction))
-
-#define IIO_MOD_EVENT_CODE(channelclass, number, modifier,		\
-			   type, direction)				\
-	IIO_EVENT_CODE(channelclass, 0, modifier, direction, type, number, 0, 0)
-
-#define IIO_UNMOD_EVENT_CODE(channelclass, number, type, direction)	\
-	IIO_EVENT_CODE(channelclass, 0, 0, direction, type, number, 0, 0)
-
-#define IIO_EVENT_CODE_EXTRACT_TYPE(mask) ((mask >> 56) & 0xFF)
-
-#define IIO_EVENT_CODE_EXTRACT_DIR(mask) ((mask >> 48) & 0xCF)
-
-#define IIO_EVENT_CODE_EXTRACT_CHAN_TYPE(mask) ((mask >> 32) & 0xFF)
-
-/* Event code number extraction depends on which type of event we have.
- * Perhaps review this function in the future*/
-#define IIO_EVENT_CODE_EXTRACT_NUM(mask) (mask & 0xFFFF)
-
-#define IIO_EVENT_CODE_EXTRACT_MODIFIER(mask) ((mask >> 40) & 0xFF)
-
 #endif /* _INDUSTRIAL_IO_SYSFS_H_ */
diff --git a/drivers/staging/iio/trigger.h b/drivers/staging/iio/trigger.h
index 5cc42a655c88..1cfca231db8f 100644
--- a/drivers/staging/iio/trigger.h
+++ b/drivers/staging/iio/trigger.h
@@ -46,7 +46,6 @@ struct iio_trigger_ops {
  * @private_data:	[DRIVER] device specific data
  * @list:		[INTERN] used in maintenance of global trigger list
  * @alloc_list:		[DRIVER] used for driver specific trigger list
- * @owner:		[DRIVER] used to monitor usage count of the trigger.
  * @use_count:		use count for the trigger
  * @subirq_chip:	[INTERN] associate 'virtual' irq chip.
  * @subirq_base:	[INTERN] base number for irqs provided by trigger.
@@ -63,7 +62,6 @@ struct iio_trigger {
 	void				*private_data;
 	struct list_head		list;
 	struct list_head		alloc_list;
-	struct module			*owner;
 	int use_count;
 
 	struct irq_chip			subirq_chip;
diff --git a/drivers/staging/iio/trigger/iio-trig-periodic-rtc.c b/drivers/staging/iio/trigger/iio-trig-periodic-rtc.c
index d35d085da949..bd7416b2c561 100644
--- a/drivers/staging/iio/trigger/iio-trig-periodic-rtc.c
+++ b/drivers/staging/iio/trigger/iio-trig-periodic-rtc.c
@@ -125,7 +125,6 @@ static int iio_trig_periodic_rtc_probe(struct platform_device *dev)
 			goto error_put_trigger_and_remove_from_list;
 		}
 		trig->private_data = trig_info;
-		trig->owner = THIS_MODULE;
 		trig->ops = &iio_prtc_trigger_ops;
 		/* RTC access */
 		trig_info->rtc
diff --git a/drivers/staging/iio/types.h b/drivers/staging/iio/types.h
new file mode 100644
index 000000000000..b7d26474ad06
--- /dev/null
+++ b/drivers/staging/iio/types.h
@@ -0,0 +1,49 @@
+/* industrial I/O data types needed both in and out of kernel
+ *
+ * Copyright (c) 2008 Jonathan Cameron
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ */
+
+#ifndef _IIO_TYPES_H_
+#define _IIO_TYPES_H_
+
+enum iio_chan_type {
+	/* real channel types */
+	IIO_VOLTAGE,
+	IIO_CURRENT,
+	IIO_POWER,
+	IIO_ACCEL,
+	IIO_ANGL_VEL,
+	IIO_MAGN,
+	IIO_LIGHT,
+	IIO_INTENSITY,
+	IIO_PROXIMITY,
+	IIO_TEMP,
+	IIO_INCLI,
+	IIO_ROT,
+	IIO_ANGL,
+	IIO_TIMESTAMP,
+	IIO_CAPACITANCE,
+};
+
+enum iio_modifier {
+	IIO_NO_MOD,
+	IIO_MOD_X,
+	IIO_MOD_Y,
+	IIO_MOD_Z,
+	IIO_MOD_X_AND_Y,
+	IIO_MOD_X_AND_Z,
+	IIO_MOD_Y_AND_Z,
+	IIO_MOD_X_AND_Y_AND_Z,
+	IIO_MOD_X_OR_Y,
+	IIO_MOD_X_OR_Z,
+	IIO_MOD_Y_OR_Z,
+	IIO_MOD_X_OR_Y_OR_Z,
+	IIO_MOD_LIGHT_BOTH,
+	IIO_MOD_LIGHT_IR,
+};
+
+#endif /* _IIO_TYPES_H_ */
diff --git a/drivers/staging/intel_sst/Kconfig b/drivers/staging/intel_sst/Kconfig
deleted file mode 100644
index 82391077b384..000000000000
--- a/drivers/staging/intel_sst/Kconfig
+++ /dev/null
@@ -1,19 +0,0 @@
-config SND_INTEL_SST
-	tristate "Intel SST (LPE) Driver"
-	depends on X86 && INTEL_SCU_IPC
-	default n
-	help
-	  Say Y here to include support for the Intel(R) MID SST DSP driver
-	  On other PC platforms if you are unsure answer 'N'
-
-config SND_INTELMID
-	tristate "Intel MID sound card driver"
-	depends on SOUND && SND
-	select SND_PCM
-	select SND_SEQUENCER
-	select SND_JACK
-	depends on SND_INTEL_SST
-	default n
-	help
-	  Say Y here to include support for the Intel(R) MID sound card driver
-	  On other PC platforms if you are unsure answer 'N'
diff --git a/drivers/staging/intel_sst/Makefile b/drivers/staging/intel_sst/Makefile
deleted file mode 100644
index 9eb7c158bb65..000000000000
--- a/drivers/staging/intel_sst/Makefile
+++ /dev/null
@@ -1,7 +0,0 @@
-#
-# Makefile for Intel MID Audio drivers
-#
-snd-intel-sst-y := intel_sst.o intel_sst_ipc.o intel_sst_stream.o intel_sst_drv_interface.o intel_sst_dsp.o intel_sst_pvt.o intel_sst_stream_encoded.o intel_sst_app_interface.o
-snd-intelmid-y := intelmid.o intelmid_msic_control.o intelmid_ctrl.o intelmid_pvt.o intelmid_v0_control.o intelmid_v1_control.o intelmid_v2_control.o
-obj-$(CONFIG_SND_INTEL_SST) += snd-intel-sst.o
-obj-$(CONFIG_SND_INTELMID) += snd-intelmid.o
diff --git a/drivers/staging/intel_sst/TODO b/drivers/staging/intel_sst/TODO
deleted file mode 100644
index c733d7011091..000000000000
--- a/drivers/staging/intel_sst/TODO
+++ /dev/null
@@ -1,13 +0,0 @@
-TODO
-----
-
-Get the memrar driver cleaned up and upstream (dependency blocking SST)
-Replace long/short press with two virtual buttons
-Review the printks and kill off any left over ST_ERR: messages
-Review the misc device ioctls for 32/64bit safety and sanity
-Review the misc device ioctls for size safety depending on config and decide
-	if space/unused areas should be left
-What the sound folks turn up on full review
-Using the ALSA frameworks properly
-
-
diff --git a/drivers/staging/intel_sst/intel_sst.c b/drivers/staging/intel_sst/intel_sst.c
deleted file mode 100644
index ff9aaec0557f..000000000000
--- a/drivers/staging/intel_sst/intel_sst.c
+++ /dev/null
@@ -1,649 +0,0 @@
-/*
- *  intel_sst.c - Intel SST Driver for audio engine
- *
- *  Copyright (C) 2008-10	Intel Corp
- *  Authors:	Vinod Koul <vinod.koul@intel.com>
- *		Harsha Priya <priya.harsha@intel.com>
- *		Dharageswari R <dharageswari.r@intel.com>
- *		KP Jeeja <jeeja.kp@intel.com>
- *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; version 2 of the License.
- *
- *  This program is distributed in the hope that it will be useful, but
- *  WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This driver exposes the audio engine functionalities to the ALSA
- *	 and middleware.
- *
- *  This file contains all init functions
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/pci.h>
-#include <linux/fs.h>
-#include <linux/interrupt.h>
-#include <linux/firmware.h>
-#include <linux/miscdevice.h>
-#include <linux/pm_runtime.h>
-#include <linux/module.h>
-#include <asm/mrst.h>
-#include "intel_sst.h"
-#include "intel_sst_ioctl.h"
-#include "intel_sst_fw_ipc.h"
-#include "intel_sst_common.h"
-
-
-MODULE_AUTHOR("Vinod Koul <vinod.koul@intel.com>");
-MODULE_AUTHOR("Harsha Priya <priya.harsha@intel.com>");
-MODULE_AUTHOR("Dharageswari R <dharageswari.r@intel.com>");
-MODULE_AUTHOR("KP Jeeja <jeeja.kp@intel.com>");
-MODULE_DESCRIPTION("Intel (R) SST(R) Audio Engine Driver");
-MODULE_LICENSE("GPL v2");
-MODULE_VERSION(SST_DRIVER_VERSION);
-
-struct intel_sst_drv *sst_drv_ctx;
-static struct mutex drv_ctx_lock;
-struct class *sst_class;
-
-/* fops Routines */
-static const struct file_operations intel_sst_fops = {
-	.owner = THIS_MODULE,
-	.open = intel_sst_open,
-	.release = intel_sst_release,
-	.read = intel_sst_read,
-	.write = intel_sst_write,
-	.unlocked_ioctl = intel_sst_ioctl,
-	.mmap = intel_sst_mmap,
-	.aio_read = intel_sst_aio_read,
-	.aio_write = intel_sst_aio_write,
-};
-static const struct file_operations intel_sst_fops_cntrl = {
-	.owner = THIS_MODULE,
-	.open = intel_sst_open_cntrl,
-	.release = intel_sst_release_cntrl,
-	.unlocked_ioctl = intel_sst_ioctl,
-};
-
-static struct miscdevice lpe_dev = {
-	.minor = MISC_DYNAMIC_MINOR,/* dynamic allocation */
-	.name = "intel_sst",/* /dev/intel_sst */
-	.fops = &intel_sst_fops
-};
-
-
-static struct miscdevice lpe_ctrl = {
-	.minor = MISC_DYNAMIC_MINOR,/* dynamic allocation */
-	.name = "intel_sst_ctrl",/* /dev/intel_sst_ctrl */
-	.fops = &intel_sst_fops_cntrl
-};
-
-/**
-* intel_sst_interrupt - Interrupt service routine for SST
-*
-* @irq:	irq number of interrupt
-* @context: pointer to device structre
-*
-* This function is called by OS when SST device raises
-* an interrupt. This will be result of write in IPC register
-* Source can be busy or done interrupt
-*/
-static irqreturn_t intel_sst_interrupt(int irq, void *context)
-{
-	union interrupt_reg isr;
-	union ipc_header header;
-	union interrupt_reg imr;
-	struct intel_sst_drv *drv = (struct intel_sst_drv *) context;
-	unsigned int size = 0, str_id;
-	struct stream_info *stream ;
-
-	/* Do not handle interrupt in suspended state */
-	if (drv->sst_state == SST_SUSPENDED)
-		return IRQ_NONE;
-	/* Interrupt arrived, check src */
-	isr.full = sst_shim_read(drv->shim, SST_ISRX);
-
-	if (isr.part.busy_interrupt) {
-		header.full = sst_shim_read(drv->shim, SST_IPCD);
-		if (header.part.msg_id == IPC_SST_PERIOD_ELAPSED) {
-			sst_clear_interrupt();
-			str_id = header.part.str_id;
-			stream = &sst_drv_ctx->streams[str_id];
-			if (stream->period_elapsed)
-				stream->period_elapsed(stream->pcm_substream);
-			return IRQ_HANDLED;
-		}
-		if (header.part.large)
-			size = header.part.data;
-		if (header.part.msg_id & REPLY_MSG) {
-			sst_drv_ctx->ipc_process_msg.header = header;
-			memcpy_fromio(sst_drv_ctx->ipc_process_msg.mailbox,
-				drv->mailbox + SST_MAILBOX_RCV, size);
-			queue_work(sst_drv_ctx->process_msg_wq,
-					&sst_drv_ctx->ipc_process_msg.wq);
-		} else {
-			sst_drv_ctx->ipc_process_reply.header = header;
-			memcpy_fromio(sst_drv_ctx->ipc_process_reply.mailbox,
-				drv->mailbox + SST_MAILBOX_RCV, size);
-			queue_work(sst_drv_ctx->process_reply_wq,
-					&sst_drv_ctx->ipc_process_reply.wq);
-		}
-		/* mask busy inetrrupt */
-		imr.full = sst_shim_read(drv->shim, SST_IMRX);
-		imr.part.busy_interrupt = 1;
-		sst_shim_write(sst_drv_ctx->shim, SST_IMRX, imr.full);
-		return IRQ_HANDLED;
-	} else if (isr.part.done_interrupt) {
-		/* Clear done bit */
-		header.full = sst_shim_read(drv->shim, SST_IPCX);
-		header.part.done = 0;
-		sst_shim_write(sst_drv_ctx->shim, SST_IPCX, header.full);
-		/* write 1 to clear status register */;
-		isr.part.done_interrupt = 1;
-		/* dummy register for shim workaround */
-		sst_shim_write(sst_drv_ctx->shim, SST_ISRX, isr.full);
-		queue_work(sst_drv_ctx->post_msg_wq,
-			&sst_drv_ctx->ipc_post_msg.wq);
-		return IRQ_HANDLED;
-	} else
-		return IRQ_NONE;
-
-}
-
-
-/*
-* intel_sst_probe - PCI probe function
-*
-* @pci:	PCI device structure
-* @pci_id: PCI device ID structure
-*
-* This function is called by OS when a device is found
-* This enables the device, interrupt etc
-*/
-static int __devinit intel_sst_probe(struct pci_dev *pci,
-			const struct pci_device_id *pci_id)
-{
-	int i, ret = 0;
-
-	pr_debug("Probe for DID %x\n", pci->device);
-	mutex_lock(&drv_ctx_lock);
-	if (sst_drv_ctx) {
-		pr_err("Only one sst handle is supported\n");
-		mutex_unlock(&drv_ctx_lock);
-		return -EBUSY;
-	}
-
-	sst_drv_ctx = kzalloc(sizeof(*sst_drv_ctx), GFP_KERNEL);
-	if (!sst_drv_ctx) {
-		pr_err("malloc fail\n");
-		mutex_unlock(&drv_ctx_lock);
-		return -ENOMEM;
-	}
-	mutex_unlock(&drv_ctx_lock);
-
-	sst_drv_ctx->pci_id = pci->device;
-
-	mutex_init(&sst_drv_ctx->stream_lock);
-	mutex_init(&sst_drv_ctx->sst_lock);
-	sst_drv_ctx->pmic_state = SND_MAD_UN_INIT;
-
-	sst_drv_ctx->stream_cnt = 0;
-	sst_drv_ctx->encoded_cnt = 0;
-	sst_drv_ctx->am_cnt = 0;
-	sst_drv_ctx->pb_streams = 0;
-	sst_drv_ctx->cp_streams = 0;
-	sst_drv_ctx->unique_id = 0;
-	sst_drv_ctx->pmic_port_instance = SST_DEFAULT_PMIC_PORT;
-
-	INIT_LIST_HEAD(&sst_drv_ctx->ipc_dispatch_list);
-	INIT_WORK(&sst_drv_ctx->ipc_post_msg.wq, sst_post_message);
-	INIT_WORK(&sst_drv_ctx->ipc_process_msg.wq, sst_process_message);
-	INIT_WORK(&sst_drv_ctx->ipc_process_reply.wq, sst_process_reply);
-	INIT_WORK(&sst_drv_ctx->mad_ops.wq, sst_process_mad_ops);
-	init_waitqueue_head(&sst_drv_ctx->wait_queue);
-
-	sst_drv_ctx->mad_wq = create_workqueue("sst_mad_wq");
-	if (!sst_drv_ctx->mad_wq)
-		goto do_free_drv_ctx;
-	sst_drv_ctx->post_msg_wq = create_workqueue("sst_post_msg_wq");
-	if (!sst_drv_ctx->post_msg_wq)
-		goto free_mad_wq;
-	sst_drv_ctx->process_msg_wq = create_workqueue("sst_process_msg_wqq");
-	if (!sst_drv_ctx->process_msg_wq)
-		goto free_post_msg_wq;
-	sst_drv_ctx->process_reply_wq = create_workqueue("sst_proces_reply_wq");
-	if (!sst_drv_ctx->process_reply_wq)
-		goto free_process_msg_wq;
-
-	for (i = 0; i < MAX_ACTIVE_STREAM; i++) {
-		sst_drv_ctx->alloc_block[i].sst_id = BLOCK_UNINIT;
-		sst_drv_ctx->alloc_block[i].ops_block.condition = false;
-	}
-	spin_lock_init(&sst_drv_ctx->list_spin_lock);
-
-	sst_drv_ctx->max_streams = pci_id->driver_data;
-	pr_debug("Got drv data max stream %d\n",
-				sst_drv_ctx->max_streams);
-	for (i = 1; i <= sst_drv_ctx->max_streams; i++) {
-		struct stream_info *stream = &sst_drv_ctx->streams[i];
-		INIT_LIST_HEAD(&stream->bufs);
-		mutex_init(&stream->lock);
-		spin_lock_init(&stream->pcm_lock);
-	}
-	if (sst_drv_ctx->pci_id == SST_MRST_PCI_ID) {
-		sst_drv_ctx->mmap_mem = NULL;
-		sst_drv_ctx->mmap_len = SST_MMAP_PAGES * PAGE_SIZE;
-		while (sst_drv_ctx->mmap_len > 0) {
-			sst_drv_ctx->mmap_mem =
-				kzalloc(sst_drv_ctx->mmap_len, GFP_KERNEL);
-			if (sst_drv_ctx->mmap_mem) {
-				pr_debug("Got memory %p size 0x%x\n",
-					sst_drv_ctx->mmap_mem,
-					sst_drv_ctx->mmap_len);
-				break;
-			}
-			if (sst_drv_ctx->mmap_len < (SST_MMAP_STEP*PAGE_SIZE)) {
-				pr_err("mem alloc fail...abort!!\n");
-				ret = -ENOMEM;
-				goto free_process_reply_wq;
-			}
-			sst_drv_ctx->mmap_len -= (SST_MMAP_STEP * PAGE_SIZE);
-			pr_debug("mem alloc failed...trying %d\n",
-						sst_drv_ctx->mmap_len);
-		}
-	}
-
-	/* Init the device */
-	ret = pci_enable_device(pci);
-	if (ret) {
-		pr_err("device can't be enabled\n");
-		goto do_free_mem;
-	}
-	sst_drv_ctx->pci = pci_dev_get(pci);
-	ret = pci_request_regions(pci, SST_DRV_NAME);
-	if (ret)
-		goto do_disable_device;
-	/* map registers */
-	/* SST Shim */
-	sst_drv_ctx->shim_phy_add = pci_resource_start(pci, 1);
-	sst_drv_ctx->shim = pci_ioremap_bar(pci, 1);
-	if (!sst_drv_ctx->shim)
-		goto do_release_regions;
-	pr_debug("SST Shim Ptr %p\n", sst_drv_ctx->shim);
-
-	/* Shared SRAM */
-	sst_drv_ctx->mailbox = pci_ioremap_bar(pci, 2);
-	if (!sst_drv_ctx->mailbox)
-		goto do_unmap_shim;
-	pr_debug("SRAM Ptr %p\n", sst_drv_ctx->mailbox);
-
-	/* IRAM */
-	sst_drv_ctx->iram = pci_ioremap_bar(pci, 3);
-	if (!sst_drv_ctx->iram)
-		goto do_unmap_sram;
-	pr_debug("IRAM Ptr %p\n", sst_drv_ctx->iram);
-
-	/* DRAM */
-	sst_drv_ctx->dram = pci_ioremap_bar(pci, 4);
-	if (!sst_drv_ctx->dram)
-		goto do_unmap_iram;
-	pr_debug("DRAM Ptr %p\n", sst_drv_ctx->dram);
-
-	mutex_lock(&sst_drv_ctx->sst_lock);
-	sst_drv_ctx->sst_state = SST_UN_INIT;
-	mutex_unlock(&sst_drv_ctx->sst_lock);
-	/* Register the ISR */
-	ret = request_irq(pci->irq, intel_sst_interrupt,
-		IRQF_SHARED, SST_DRV_NAME, sst_drv_ctx);
-	if (ret)
-		goto do_unmap_dram;
-	pr_debug("Registered IRQ 0x%x\n", pci->irq);
-
-	/*Register LPE Control as misc driver*/
-	ret = misc_register(&lpe_ctrl);
-	if (ret) {
-		pr_err("couldn't register control device\n");
-		goto do_free_irq;
-	}
-
-	if (sst_drv_ctx->pci_id == SST_MRST_PCI_ID) {
-		ret = misc_register(&lpe_dev);
-		if (ret) {
-			pr_err("couldn't register LPE device\n");
-			goto do_free_misc;
-		}
-	} else if (sst_drv_ctx->pci_id == SST_MFLD_PCI_ID) {
-		u32 csr;
-
-		/*allocate mem for fw context save during suspend*/
-		sst_drv_ctx->fw_cntx = kzalloc(FW_CONTEXT_MEM, GFP_KERNEL);
-		if (!sst_drv_ctx->fw_cntx) {
-			ret = -ENOMEM;
-			goto do_free_misc;
-		}
-		/*setting zero as that is valid mem to restore*/
-		sst_drv_ctx->fw_cntx_size = 0;
-
-		/*set lpe start clock and ram size*/
-		csr = sst_shim_read(sst_drv_ctx->shim, SST_CSR);
-		csr |= 0x30060; /*remove the clock ratio after fw fix*/
-		sst_shim_write(sst_drv_ctx->shim, SST_CSR, csr);
-	}
-	sst_drv_ctx->lpe_stalled = 0;
-	pci_set_drvdata(pci, sst_drv_ctx);
-	pm_runtime_allow(&pci->dev);
-	pm_runtime_put_noidle(&pci->dev);
-	pr_debug("...successfully done!!!\n");
-	return ret;
-
-do_free_misc:
-	misc_deregister(&lpe_ctrl);
-do_free_irq:
-	free_irq(pci->irq, sst_drv_ctx);
-do_unmap_dram:
-	iounmap(sst_drv_ctx->dram);
-do_unmap_iram:
-	iounmap(sst_drv_ctx->iram);
-do_unmap_sram:
-	iounmap(sst_drv_ctx->mailbox);
-do_unmap_shim:
-	iounmap(sst_drv_ctx->shim);
-do_release_regions:
-	pci_release_regions(pci);
-do_disable_device:
-	pci_disable_device(pci);
-do_free_mem:
-	kfree(sst_drv_ctx->mmap_mem);
-free_process_reply_wq:
-	destroy_workqueue(sst_drv_ctx->process_reply_wq);
-free_process_msg_wq:
-	destroy_workqueue(sst_drv_ctx->process_msg_wq);
-free_post_msg_wq:
-	destroy_workqueue(sst_drv_ctx->post_msg_wq);
-free_mad_wq:
-	destroy_workqueue(sst_drv_ctx->mad_wq);
-do_free_drv_ctx:
-	kfree(sst_drv_ctx);
-	sst_drv_ctx = NULL;
-	pr_err("Probe failed with %d\n", ret);
-	return ret;
-}
-
-/**
-* intel_sst_remove - PCI remove function
-*
-* @pci:	PCI device structure
-*
-* This function is called by OS when a device is unloaded
-* This frees the interrupt etc
-*/
-static void __devexit intel_sst_remove(struct pci_dev *pci)
-{
-	pm_runtime_get_noresume(&pci->dev);
-	pm_runtime_forbid(&pci->dev);
-	pci_dev_put(sst_drv_ctx->pci);
-	mutex_lock(&sst_drv_ctx->sst_lock);
-	sst_drv_ctx->sst_state = SST_UN_INIT;
-	mutex_unlock(&sst_drv_ctx->sst_lock);
-	misc_deregister(&lpe_ctrl);
-	free_irq(pci->irq, sst_drv_ctx);
-	iounmap(sst_drv_ctx->dram);
-	iounmap(sst_drv_ctx->iram);
-	iounmap(sst_drv_ctx->mailbox);
-	iounmap(sst_drv_ctx->shim);
-	sst_drv_ctx->pmic_state = SND_MAD_UN_INIT;
-	if (sst_drv_ctx->pci_id == SST_MRST_PCI_ID) {
-		misc_deregister(&lpe_dev);
-		kfree(sst_drv_ctx->mmap_mem);
-	} else
-		kfree(sst_drv_ctx->fw_cntx);
-	flush_scheduled_work();
-	destroy_workqueue(sst_drv_ctx->process_reply_wq);
-	destroy_workqueue(sst_drv_ctx->process_msg_wq);
-	destroy_workqueue(sst_drv_ctx->post_msg_wq);
-	destroy_workqueue(sst_drv_ctx->mad_wq);
-	kfree(pci_get_drvdata(pci));
-	sst_drv_ctx = NULL;
-	pci_release_regions(pci);
-	pci_disable_device(pci);
-	pci_set_drvdata(pci, NULL);
-}
-
-void sst_save_dsp_context(void)
-{
-	struct snd_sst_ctxt_params fw_context;
-	unsigned int pvt_id, i;
-	struct ipc_post *msg = NULL;
-
-	/*check cpu type*/
-	if (sst_drv_ctx->pci_id != SST_MFLD_PCI_ID)
-		return;
-		/*not supported for rest*/
-	if (sst_drv_ctx->sst_state != SST_FW_RUNNING) {
-		pr_debug("fw not running no context save ...\n");
-		return;
-	}
-
-	/*send msg to fw*/
-	if (sst_create_large_msg(&msg))
-		return;
-	pvt_id = sst_assign_pvt_id(sst_drv_ctx);
-	i = sst_get_block_stream(sst_drv_ctx);
-	sst_drv_ctx->alloc_block[i].sst_id = pvt_id;
-	sst_fill_header(&msg->header, IPC_IA_GET_FW_CTXT, 1, pvt_id);
-	msg->header.part.data = sizeof(fw_context) + sizeof(u32);
-	fw_context.address = virt_to_phys((void *)sst_drv_ctx->fw_cntx);
-	fw_context.size = FW_CONTEXT_MEM;
-	memcpy(msg->mailbox_data, &msg->header, sizeof(u32));
-	memcpy(msg->mailbox_data + sizeof(u32),
-				&fw_context, sizeof(fw_context));
-	spin_lock(&sst_drv_ctx->list_spin_lock);
-	list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list);
-	spin_unlock(&sst_drv_ctx->list_spin_lock);
-	sst_post_message(&sst_drv_ctx->ipc_post_msg_wq);
-	/*wait for reply*/
-	if (sst_wait_timeout(sst_drv_ctx, &sst_drv_ctx->alloc_block[i]))
-		pr_debug("err fw context save timeout  ...\n");
-	sst_drv_ctx->alloc_block[i].sst_id = BLOCK_UNINIT;
-	pr_debug("fw context saved  ...\n");
-	return;
-}
-
-/* Power Management */
-/*
-* intel_sst_suspend - PCI suspend function
-*
-* @pci: PCI device structure
-* @state: PM message
-*
-* This function is called by OS when a power event occurs
-*/
-int intel_sst_suspend(struct pci_dev *pci, pm_message_t state)
-{
-	union config_status_reg csr;
-
-	pr_debug("intel_sst_suspend called\n");
-
-	if (sst_drv_ctx->stream_cnt) {
-		pr_err("active streams,not able to suspend\n");
-		return -EBUSY;
-	}
-	/*save fw context*/
-	sst_save_dsp_context();
-	/*Assert RESET on LPE Processor*/
-	csr.full = sst_shim_read(sst_drv_ctx->shim, SST_CSR);
-	csr.full = csr.full | 0x2;
-	/* Move the SST state to Suspended */
-	mutex_lock(&sst_drv_ctx->sst_lock);
-	sst_drv_ctx->sst_state = SST_SUSPENDED;
-	sst_shim_write(sst_drv_ctx->shim, SST_CSR, csr.full);
-	mutex_unlock(&sst_drv_ctx->sst_lock);
-	pci_set_drvdata(pci, sst_drv_ctx);
-	pci_save_state(pci);
-	pci_disable_device(pci);
-	pci_set_power_state(pci, PCI_D3hot);
-	return 0;
-}
-
-/**
-* intel_sst_resume - PCI resume function
-*
-* @pci:	PCI device structure
-*
-* This function is called by OS when a power event occurs
-*/
-int intel_sst_resume(struct pci_dev *pci)
-{
-	int ret = 0;
-
-	pr_debug("intel_sst_resume called\n");
-	if (sst_drv_ctx->sst_state != SST_SUSPENDED) {
-		pr_err("SST is not in suspended state\n");
-		return 0;
-	}
-	sst_drv_ctx = pci_get_drvdata(pci);
-	pci_set_power_state(pci, PCI_D0);
-	pci_restore_state(pci);
-	ret = pci_enable_device(pci);
-	if (ret)
-		pr_err("device can't be enabled\n");
-
-	mutex_lock(&sst_drv_ctx->sst_lock);
-	sst_drv_ctx->sst_state = SST_UN_INIT;
-	mutex_unlock(&sst_drv_ctx->sst_lock);
-	return 0;
-}
-
-/* The runtime_suspend/resume is pretty much similar to the legacy
- * suspend/resume with the noted exception below:
- * The PCI core takes care of taking the system through D3hot and
- * restoring it back to D0 and so there is no need to duplicate
- * that here.
- */
-static int intel_sst_runtime_suspend(struct device *dev)
-{
-	union config_status_reg csr;
-
-	pr_debug("intel_sst_runtime_suspend called\n");
-	if (sst_drv_ctx->stream_cnt) {
-		pr_err("active streams,not able to suspend\n");
-		return -EBUSY;
-	}
-	/*save fw context*/
-	sst_save_dsp_context();
-	/*Assert RESET on LPE Processor*/
-	csr.full = sst_shim_read(sst_drv_ctx->shim, SST_CSR);
-	csr.full = csr.full | 0x2;
-	/* Move the SST state to Suspended */
-	mutex_lock(&sst_drv_ctx->sst_lock);
-	sst_drv_ctx->sst_state = SST_SUSPENDED;
-
-	/* Only needed by Medfield */
-	if (sst_drv_ctx->pci_id != SST_MRST_PCI_ID)
-		sst_shim_write(sst_drv_ctx->shim, SST_CSR, csr.full);
-	mutex_unlock(&sst_drv_ctx->sst_lock);
-	return 0;
-}
-
-static int intel_sst_runtime_resume(struct device *dev)
-{
-
-	pr_debug("intel_sst_runtime_resume called\n");
-	if (sst_drv_ctx->sst_state != SST_SUSPENDED) {
-		pr_err("SST is not in suspended state\n");
-		return 0;
-	}
-
-	mutex_lock(&sst_drv_ctx->sst_lock);
-	sst_drv_ctx->sst_state = SST_UN_INIT;
-	mutex_unlock(&sst_drv_ctx->sst_lock);
-	return 0;
-}
-
-static int intel_sst_runtime_idle(struct device *dev)
-{
-	pr_debug("runtime_idle called\n");
-	if (sst_drv_ctx->stream_cnt == 0 && sst_drv_ctx->am_cnt == 0)
-		pm_schedule_suspend(dev, SST_SUSPEND_DELAY);
-	return -EBUSY;
-}
-
-static const struct dev_pm_ops intel_sst_pm = {
-	.runtime_suspend = intel_sst_runtime_suspend,
-	.runtime_resume = intel_sst_runtime_resume,
-	.runtime_idle = intel_sst_runtime_idle,
-};
-
-/* PCI Routines */
-static struct pci_device_id intel_sst_ids[] = {
-	{ PCI_VDEVICE(INTEL, SST_MRST_PCI_ID), 3},
-	{ PCI_VDEVICE(INTEL, SST_MFLD_PCI_ID), 6},
-	{ 0, }
-};
-MODULE_DEVICE_TABLE(pci, intel_sst_ids);
-
-static struct pci_driver driver = {
-	.name = SST_DRV_NAME,
-	.id_table = intel_sst_ids,
-	.probe = intel_sst_probe,
-	.remove = __devexit_p(intel_sst_remove),
-#ifdef CONFIG_PM
-	.suspend = intel_sst_suspend,
-	.resume = intel_sst_resume,
-	.driver = {
-		.pm = &intel_sst_pm,
-	},
-#endif
-};
-
-/**
-* intel_sst_init - Module init function
-*
-* Registers with PCI
-* Registers with /dev
-* Init all data strutures
-*/
-static int __init intel_sst_init(void)
-{
-	/* Init all variables, data structure etc....*/
-	int ret = 0;
-	pr_debug("INFO: ******** SST DRIVER loading.. Ver: %s\n",
-				       SST_DRIVER_VERSION);
-
-	mutex_init(&drv_ctx_lock);
-	/* Register with PCI */
-	ret = pci_register_driver(&driver);
-	if (ret)
-		pr_err("PCI register failed\n");
-	return ret;
-}
-
-/**
-* intel_sst_exit - Module exit function
-*
-* Unregisters with PCI
-* Unregisters with /dev
-* Frees all data strutures
-*/
-static void __exit intel_sst_exit(void)
-{
-	pci_unregister_driver(&driver);
-
-	pr_debug("driver unloaded\n");
-	sst_drv_ctx = NULL;
-	return;
-}
-
-module_init(intel_sst_init);
-module_exit(intel_sst_exit);
diff --git a/drivers/staging/intel_sst/intel_sst.h b/drivers/staging/intel_sst/intel_sst.h
deleted file mode 100644
index 4ad2829105a7..000000000000
--- a/drivers/staging/intel_sst/intel_sst.h
+++ /dev/null
@@ -1,162 +0,0 @@
-#ifndef __INTEL_SST_H__
-#define __INTEL_SST_H__
-/*
- *  intel_sst.h - Intel SST Driver for audio engine
- *
- *  Copyright (C) 2008-10 Intel Corporation
- *  Authors:	Vinod Koul <vinod.koul@intel.com>
- *		Harsha Priya <priya.harsha@intel.com>
- *		Dharageswari R <dharageswari.r@intel.com>
- *		KP Jeeja <jeeja.kp@intel.com>
- *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; version 2 of the License.
- *
- *  This program is distributed in the hope that it will be useful, but
- *  WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This driver exposes the audio engine functionalities to the ALSA
- *	and middleware.
- *  This file is shared between the SST and MAD drivers
- */
-#include "intel_sst_ioctl.h"
-#include <sound/jack.h>
-
-#define SST_CARD_NAMES "intel_mid_card"
-
-#define MFLD_MAX_HW_CH 4
-/* control list Pmic & Lpe */
-/* Input controls */
-enum port_status {
-	ACTIVATE = 1,
-	DEACTIVATE,
-};
-
-/* Card states */
-enum sst_card_states {
-	SND_CARD_UN_INIT = 0,
-	SND_CARD_INIT_DONE,
-};
-
-enum sst_controls {
-	SST_SND_ALLOC =			0x1000,
-	SST_SND_PAUSE =			0x1001,
-	SST_SND_RESUME =		0x1002,
-	SST_SND_DROP =			0x1003,
-	SST_SND_FREE =			0x1004,
-	SST_SND_BUFFER_POINTER =	0x1005,
-	SST_SND_STREAM_INIT =		0x1006,
-	SST_SND_START	 =		0x1007,
-	SST_SND_STREAM_PROCESS =	0x1008,
-	SST_MAX_CONTROLS =		0x1008,
-	SST_CONTROL_BASE =		0x1000,
-	SST_ENABLE_RX_TIME_SLOT =	0x1009,
-};
-
-enum SND_CARDS {
-	SND_FS = 0,
-	SND_MX,
-	SND_NC,
-	SND_MSIC
-};
-
-struct pcm_stream_info {
-	int str_id;
-	void *mad_substream;
-	void (*period_elapsed) (void *mad_substream);
-	unsigned long long buffer_ptr;
-	int sfreq;
-};
-
-struct snd_pmic_ops {
-	int card_status;
-	int master_mute;
-	int num_channel;
-	int input_dev_id;
-	int mute_status;
-	struct mutex lock;
-	int pb_on, pbhs_on;
-	int cap_on;
-	int output_dev_id;
-	int lineout_dev_id, line_out_names_cnt;
-	int prev_lineout_dev_id;
-	bool jack_interrupt_status;
-	int (*set_input_dev) (u8 value);
-	int (*set_output_dev) (u8 value);
-	int (*set_lineout_dev) (u8 value);
-	int (*set_mute) (int dev_id, u8 value);
-	int (*get_mute) (int dev_id, u8 *value);
-
-	int (*set_vol) (int dev_id, int value);
-	int (*get_vol) (int dev_id, int *value);
-
-	int (*init_card) (void);
-	int (*set_pcm_audio_params)
-		(int sfreq, int word_size , int num_channel);
-	int (*set_pcm_voice_params) (void);
-	int (*set_voice_port) (int status);
-	int (*set_audio_port) (int status);
-
-	int (*power_up_pmic_pb) (unsigned int port);
-	int (*power_up_pmic_cp) (unsigned int port);
-	int (*power_down_pmic_pb) (unsigned int device);
-	int (*power_down_pmic_cp) (unsigned int device);
-	int (*power_down_pmic) (void);
-	void (*pmic_irq_cb) (void *cb_data, u8 value);
-	void (*pmic_irq_enable)(void *data);
-	int (*pmic_jack_enable) (void);
-	int (*pmic_get_mic_bias)(void *intelmaddata);
-	int (*pmic_set_headset_state)(int state);
-
-	unsigned int hw_dmic_map[MFLD_MAX_HW_CH];
-	unsigned int available_dmics;
-	int (*set_hw_dmic_route) (u8 index);
-
-	int gpio_amp;
-};
-
-extern void sst_mad_send_jack_report(struct snd_jack *jack,
-				     int buttonpressevent,
-				     int status);
-
-
-int intemad_set_headset_state(int state);
-int intelmad_get_mic_bias(void);
-
-struct intel_sst_pcm_control {
-	int (*open) (struct snd_sst_params *str_param);
-	int (*device_control) (int cmd, void *arg);
-	int (*close) (unsigned int str_id);
-};
-struct intel_sst_card_ops {
-	char *module_name;
-	unsigned int  vendor_id;
-	struct intel_sst_pcm_control *pcm_control;
-	struct snd_pmic_ops *scard_ops;
-};
-
-/* modified for generic access */
-struct sc_reg_access {
-	u16 reg_addr;
-	u8 value;
-	u8 mask;
-};
-enum sc_reg_access_type {
-	PMIC_READ = 0,
-	PMIC_WRITE,
-	PMIC_READ_MODIFY,
-};
-
-int register_sst_card(struct intel_sst_card_ops *card);
-void unregister_sst_card(struct intel_sst_card_ops *card);
-#endif /* __INTEL_SST_H__ */
diff --git a/drivers/staging/intel_sst/intel_sst_app_interface.c b/drivers/staging/intel_sst/intel_sst_app_interface.c
deleted file mode 100644
index 93b41a284d83..000000000000
--- a/drivers/staging/intel_sst/intel_sst_app_interface.c
+++ /dev/null
@@ -1,1460 +0,0 @@
-/*
- *  intel_sst_interface.c - Intel SST Driver for audio engine
- *
- *  Copyright (C) 2008-10 Intel Corp
- *  Authors:	Vinod Koul <vinod.koul@intel.com>
- *  Harsha Priya <priya.harsha@intel.com>
- *  Dharageswari R <dharageswari.r@intel.com>
- *  Jeeja KP <jeeja.kp@intel.com>
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; version 2 of the License.
- *
- *  This program is distributed in the hope that it will be useful, but
- *  WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *  This driver exposes the audio engine functionalities to the ALSA
- *	and middleware.
- *  Upper layer interfaces (MAD driver, MMF) to SST driver
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/pci.h>
-#include <linux/fs.h>
-#include <linux/uio.h>
-#include <linux/aio.h>
-#include <linux/uaccess.h>
-#include <linux/firmware.h>
-#include <linux/pm_runtime.h>
-#include <linux/ioctl.h>
-#ifdef CONFIG_MRST_RAR_HANDLER
-#include <linux/rar_register.h>
-#include "../../../drivers/staging/memrar/memrar.h"
-#endif
-#include "intel_sst.h"
-#include "intel_sst_ioctl.h"
-#include "intel_sst_fw_ipc.h"
-#include "intel_sst_common.h"
-
-#define AM_MODULE 1
-#define STREAM_MODULE 0
-
-
-/**
-* intel_sst_check_device - checks SST device
-*
-* This utility function checks the state of SST device and downlaods FW if
-* not done, or resumes the device if suspended
-*/
-
-static int intel_sst_check_device(void)
-{
-	int retval = 0;
-	if (sst_drv_ctx->pmic_state != SND_MAD_INIT_DONE) {
-		pr_warn("Sound card not available\n");
-		return -EIO;
-	}
-	if (sst_drv_ctx->sst_state == SST_SUSPENDED) {
-		pr_debug("Resuming from Suspended state\n");
-		retval = intel_sst_resume(sst_drv_ctx->pci);
-		if (retval) {
-			pr_debug("Resume Failed= %#x,abort\n", retval);
-			return retval;
-		}
-	}
-
-	if (sst_drv_ctx->sst_state == SST_UN_INIT) {
-		/* FW is not downloaded */
-		retval = sst_download_fw();
-		if (retval)
-			return -ENODEV;
-		if (sst_drv_ctx->pci_id == SST_MRST_PCI_ID) {
-			retval = sst_drv_ctx->rx_time_slot_status;
-			if (retval != RX_TIMESLOT_UNINIT
-					&& sst_drv_ctx->pmic_vendor != SND_NC)
-				sst_enable_rx_timeslot(retval);
-		}
-	}
-	return 0;
-}
-
-/**
- * intel_sst_open - opens a handle to driver
- *
- * @i_node:	inode structure
- * @file_ptr:pointer to file
- *
- * This function is called by OS when a user space component
- * tries to get a driver handle. Only one handle at a time
- * will be allowed
- */
-int intel_sst_open(struct inode *i_node, struct file *file_ptr)
-{
-	unsigned int retval;
-
-	mutex_lock(&sst_drv_ctx->stream_lock);
-	pm_runtime_get_sync(&sst_drv_ctx->pci->dev);
-	retval = intel_sst_check_device();
-	if (retval) {
-		pm_runtime_put(&sst_drv_ctx->pci->dev);
-		mutex_unlock(&sst_drv_ctx->stream_lock);
-		return retval;
-	}
-
-	if (sst_drv_ctx->encoded_cnt < MAX_ENC_STREAM) {
-		struct ioctl_pvt_data *data =
-			kzalloc(sizeof(struct ioctl_pvt_data), GFP_KERNEL);
-		if (!data) {
-			pm_runtime_put(&sst_drv_ctx->pci->dev);
-			mutex_unlock(&sst_drv_ctx->stream_lock);
-			return -ENOMEM;
-		}
-
-		sst_drv_ctx->encoded_cnt++;
-		mutex_unlock(&sst_drv_ctx->stream_lock);
-		data->pvt_id = sst_assign_pvt_id(sst_drv_ctx);
-		data->str_id = 0;
-		file_ptr->private_data = (void *)data;
-		pr_debug("pvt_id handle = %d!\n", data->pvt_id);
-	} else {
-		retval = -EUSERS;
-		pm_runtime_put(&sst_drv_ctx->pci->dev);
-		mutex_unlock(&sst_drv_ctx->stream_lock);
-	}
-	return retval;
-}
-
-/**
- * intel_sst_open_cntrl - opens a handle to driver
- *
- * @i_node:	inode structure
- * @file_ptr:pointer to file
- *
- * This function is called by OS when a user space component
- * tries to get a driver handle to /dev/intel_sst_control.
- * Only one handle at a time will be allowed
- * This is for control operations only
- */
-int intel_sst_open_cntrl(struct inode *i_node, struct file *file_ptr)
-{
-	unsigned int retval;
-
-	/* audio manager open */
-	mutex_lock(&sst_drv_ctx->stream_lock);
-	pm_runtime_get_sync(&sst_drv_ctx->pci->dev);
-	retval = intel_sst_check_device();
-	if (retval) {
-		pm_runtime_put(&sst_drv_ctx->pci->dev);
-		mutex_unlock(&sst_drv_ctx->stream_lock);
-		return retval;
-	}
-
-	if (sst_drv_ctx->am_cnt < MAX_AM_HANDLES) {
-		sst_drv_ctx->am_cnt++;
-		pr_debug("AM handle opened...\n");
-		file_ptr->private_data = NULL;
-	} else {
-		retval = -EACCES;
-		pm_runtime_put(&sst_drv_ctx->pci->dev);
-	}
-
-	mutex_unlock(&sst_drv_ctx->stream_lock);
-	return retval;
-}
-
-/**
- * intel_sst_release - releases a handle to driver
- *
- * @i_node:	inode structure
- * @file_ptr:	pointer to file
- *
- * This function is called by OS when a user space component
- * tries to release a driver handle.
- */
-int intel_sst_release(struct inode *i_node, struct file *file_ptr)
-{
-	struct ioctl_pvt_data *data = file_ptr->private_data;
-
-	pr_debug("Release called, closing app handle\n");
-	mutex_lock(&sst_drv_ctx->stream_lock);
-	sst_drv_ctx->encoded_cnt--;
-	sst_drv_ctx->stream_cnt--;
-	pm_runtime_put(&sst_drv_ctx->pci->dev);
-	mutex_unlock(&sst_drv_ctx->stream_lock);
-	free_stream_context(data->str_id);
-	kfree(data);
-	return 0;
-}
-
-int intel_sst_release_cntrl(struct inode *i_node, struct file *file_ptr)
-{
-	/* audio manager close */
-	mutex_lock(&sst_drv_ctx->stream_lock);
-	sst_drv_ctx->am_cnt--;
-	pm_runtime_put(&sst_drv_ctx->pci->dev);
-	mutex_unlock(&sst_drv_ctx->stream_lock);
-	pr_debug("AM handle closed\n");
-	return 0;
-}
-
-/**
-* intel_sst_mmap - mmaps a kernel buffer to user space for copying data
-*
-* @vma:		vm area structure instance
-* @file_ptr:	pointer to file
-*
-* This function is called by OS when a user space component
-* tries to get mmap memory from driver
-*/
-int intel_sst_mmap(struct file *file_ptr, struct vm_area_struct *vma)
-{
-	int retval, length;
-	struct ioctl_pvt_data *data =
-		(struct ioctl_pvt_data *)file_ptr->private_data;
-	int str_id = data->str_id;
-	void *mem_area;
-
-	retval = sst_validate_strid(str_id);
-	if (retval)
-		return -EINVAL;
-
-	length = vma->vm_end - vma->vm_start;
-	pr_debug("called for stream %d length 0x%x\n", str_id, length);
-
-	if (length > sst_drv_ctx->mmap_len)
-		return -ENOMEM;
-	if (!sst_drv_ctx->mmap_mem)
-		return -EIO;
-
-	/* round it up to the page boundary  */
-	/*mem_area = (void *)((((unsigned long)sst_drv_ctx->mmap_mem)
-				+ PAGE_SIZE - 1) & PAGE_MASK);*/
-	mem_area = (void *) PAGE_ALIGN((unsigned int) sst_drv_ctx->mmap_mem);
-
-	/* map the whole physically contiguous area in one piece  */
-	retval = remap_pfn_range(vma,
-			vma->vm_start,
-			virt_to_phys((void *)mem_area) >> PAGE_SHIFT,
-			length,
-			vma->vm_page_prot);
-	if (retval)
-		sst_drv_ctx->streams[str_id].mmapped = false;
-	else
-		sst_drv_ctx->streams[str_id].mmapped = true;
-
-	pr_debug("mmap ret 0x%x\n", retval);
-	return retval;
-}
-
-/* sets mmap data buffers to play/capture*/
-static int intel_sst_mmap_play_capture(u32 str_id,
-		struct snd_sst_mmap_buffs *mmap_buf)
-{
-	struct sst_stream_bufs *bufs;
-	int retval, i;
-	struct stream_info *stream;
-	struct snd_sst_mmap_buff_entry *buf_entry;
-	struct snd_sst_mmap_buff_entry *tmp_buf;
-
-	pr_debug("called for str_id %d\n", str_id);
-	retval = sst_validate_strid(str_id);
-	if (retval)
-		return -EINVAL;
-
-	stream = &sst_drv_ctx->streams[str_id];
-	if (stream->mmapped != true)
-		return -EIO;
-
-	if (stream->status == STREAM_UN_INIT ||
-		stream->status == STREAM_DECODE) {
-		return -EBADRQC;
-	}
-	stream->curr_bytes = 0;
-	stream->cumm_bytes = 0;
-
-	tmp_buf = kcalloc(mmap_buf->entries, sizeof(*tmp_buf), GFP_KERNEL);
-	if (!tmp_buf)
-		return -ENOMEM;
-	if (copy_from_user(tmp_buf, (void __user *)mmap_buf->buff,
-			mmap_buf->entries * sizeof(*tmp_buf))) {
-		retval = -EFAULT;
-		goto out_free;
-	}
-
-	pr_debug("new buffers count %d status %d\n",
-			mmap_buf->entries, stream->status);
-	buf_entry = tmp_buf;
-	for (i = 0; i < mmap_buf->entries; i++) {
-		bufs = kzalloc(sizeof(*bufs), GFP_KERNEL);
-		if (!bufs) {
-			retval = -ENOMEM;
-			goto out_free;
-		}
-		bufs->size = buf_entry->size;
-		bufs->offset = buf_entry->offset;
-		bufs->addr = sst_drv_ctx->mmap_mem;
-		bufs->in_use = false;
-		buf_entry++;
-		/* locking here */
-		mutex_lock(&stream->lock);
-		list_add_tail(&bufs->node, &stream->bufs);
-		mutex_unlock(&stream->lock);
-	}
-
-	mutex_lock(&stream->lock);
-	stream->data_blk.condition = false;
-	stream->data_blk.ret_code = 0;
-	if (stream->status == STREAM_INIT &&
-			stream->prev != STREAM_UN_INIT &&
-			stream->need_draining != true) {
-		stream->prev = stream->status;
-		stream->status = STREAM_RUNNING;
-		if (stream->ops == STREAM_OPS_PLAYBACK) {
-			if (sst_play_frame(str_id) < 0) {
-				pr_warn("play frames fail\n");
-				mutex_unlock(&stream->lock);
-				retval = -EIO;
-				goto out_free;
-			}
-		} else if (stream->ops == STREAM_OPS_CAPTURE) {
-			if (sst_capture_frame(str_id) < 0) {
-				pr_warn("capture frame fail\n");
-				mutex_unlock(&stream->lock);
-				retval = -EIO;
-				goto out_free;
-			}
-		}
-	}
-	mutex_unlock(&stream->lock);
-	/* Block the call for reply */
-	if (!list_empty(&stream->bufs)) {
-		stream->data_blk.on = true;
-		retval = sst_wait_interruptible(sst_drv_ctx,
-					&stream->data_blk);
-	}
-
-	if (retval >= 0)
-		retval = stream->cumm_bytes;
-	pr_debug("end of play/rec ioctl bytes = %d!!\n", retval);
-
-out_free:
-	kfree(tmp_buf);
-	return retval;
-}
-
-/*sets user data buffers to play/capture*/
-static int intel_sst_play_capture(struct stream_info *stream, int str_id)
-{
-	int retval;
-
-	stream->data_blk.ret_code = 0;
-	stream->data_blk.on = true;
-	stream->data_blk.condition = false;
-
-	mutex_lock(&stream->lock);
-	if (stream->status == STREAM_INIT && stream->prev != STREAM_UN_INIT) {
-		/* stream is started */
-		stream->prev = stream->status;
-		stream->status = STREAM_RUNNING;
-	}
-
-	if (stream->status == STREAM_INIT && stream->prev == STREAM_UN_INIT) {
-		/* stream is not started yet */
-		pr_debug("Stream isn't in started state %d, prev %d\n",
-			stream->status, stream->prev);
-	} else if ((stream->status == STREAM_RUNNING ||
-			stream->status == STREAM_PAUSED) &&
-			stream->need_draining != true) {
-		/* stream is started */
-		if (stream->ops == STREAM_OPS_PLAYBACK ||
-				stream->ops == STREAM_OPS_PLAYBACK_DRM) {
-			if (sst_play_frame(str_id) < 0) {
-				pr_warn("play frames failed\n");
-				mutex_unlock(&stream->lock);
-				return -EIO;
-			}
-		} else if (stream->ops == STREAM_OPS_CAPTURE) {
-			if (sst_capture_frame(str_id) < 0) {
-				pr_warn("capture frames failed\n");
-				mutex_unlock(&stream->lock);
-				return -EIO;
-			}
-		}
-	} else {
-		mutex_unlock(&stream->lock);
-		return -EIO;
-	}
-	mutex_unlock(&stream->lock);
-	/* Block the call for reply */
-
-	retval = sst_wait_interruptible(sst_drv_ctx, &stream->data_blk);
-	if (retval) {
-		stream->status = STREAM_INIT;
-		pr_debug("wait returned error...\n");
-	}
-	return retval;
-}
-
-/* fills kernel list with buffer addresses for SST DSP driver to process*/
-static int snd_sst_fill_kernel_list(struct stream_info *stream,
-			const struct iovec *iovec, unsigned long nr_segs,
-			struct list_head *copy_to_list)
-{
-	struct sst_stream_bufs *stream_bufs;
-	unsigned long index, mmap_len;
-	unsigned char __user *bufp;
-	unsigned long size, copied_size;
-	int retval = 0, add_to_list = 0;
-	static int sent_offset;
-	static unsigned long sent_index;
-
-#ifdef CONFIG_MRST_RAR_HANDLER
-	if (stream->ops == STREAM_OPS_PLAYBACK_DRM) {
-		for (index = stream->sg_index; index < nr_segs; index++) {
-			__u32 rar_handle;
-			struct sst_stream_bufs *stream_bufs =
-				kzalloc(sizeof(*stream_bufs), GFP_KERNEL);
-
-			stream->sg_index = index;
-			if (!stream_bufs)
-				return -ENOMEM;
-			if (copy_from_user((void *) &rar_handle,
-					iovec[index].iov_base,
-					sizeof(__u32))) {
-				kfree(stream_bufs);
-				return -EFAULT;
-			}
-			stream_bufs->addr = (char *)rar_handle;
-			stream_bufs->in_use = false;
-			stream_bufs->size = iovec[0].iov_len;
-			/* locking here */
-			mutex_lock(&stream->lock);
-			list_add_tail(&stream_bufs->node, &stream->bufs);
-			mutex_unlock(&stream->lock);
-		}
-		stream->sg_index = index;
-		return retval;
-	}
-#endif
-	stream_bufs = kzalloc(sizeof(*stream_bufs), GFP_KERNEL);
-	if (!stream_bufs)
-		return -ENOMEM;
-	stream_bufs->addr = sst_drv_ctx->mmap_mem;
-	mmap_len = sst_drv_ctx->mmap_len;
-	stream_bufs->addr = sst_drv_ctx->mmap_mem;
-	bufp = stream->cur_ptr;
-
-	copied_size = 0;
-
-	if (!stream->sg_index)
-		sent_index = sent_offset = 0;
-
-	for (index = stream->sg_index; index < nr_segs; index++) {
-		stream->sg_index = index;
-		if (!stream->cur_ptr)
-			bufp = iovec[index].iov_base;
-
-		size = ((unsigned long)iovec[index].iov_base
-			+ iovec[index].iov_len) - (unsigned long) bufp;
-
-		if ((copied_size + size) > mmap_len)
-			size = mmap_len - copied_size;
-
-
-		if (stream->ops == STREAM_OPS_PLAYBACK) {
-			if (copy_from_user((void *)
-					(stream_bufs->addr + copied_size),
-					bufp, size)) {
-				/* Clean up the list and return error code */
-				retval = -EFAULT;
-				break;
-			}
-		} else if (stream->ops == STREAM_OPS_CAPTURE) {
-			struct snd_sst_user_cap_list *entry =
-				kzalloc(sizeof(*entry), GFP_KERNEL);
-
-			if (!entry) {
-				kfree(stream_bufs);
-				return -ENOMEM;
-			}
-			entry->iov_index = index;
-			entry->iov_offset = (unsigned long) bufp -
-					(unsigned long)iovec[index].iov_base;
-			entry->offset = copied_size;
-			entry->size = size;
-			list_add_tail(&entry->node, copy_to_list);
-		}
-
-		stream->cur_ptr = bufp + size;
-
-		if (((unsigned long)iovec[index].iov_base
-				+ iovec[index].iov_len) <
-				((unsigned long)iovec[index].iov_base)) {
-			pr_debug("Buffer overflows\n");
-			kfree(stream_bufs);
-			return -EINVAL;
-		}
-
-		if (((unsigned long)iovec[index].iov_base
-					+ iovec[index].iov_len) ==
-					(unsigned long)stream->cur_ptr) {
-			stream->cur_ptr = NULL;
-			stream->sg_index++;
-		}
-
-		copied_size += size;
-		pr_debug("copied_size - %lx\n", copied_size);
-		if ((copied_size >= mmap_len) ||
-				(stream->sg_index == nr_segs)) {
-			add_to_list = 1;
-		}
-
-		if (add_to_list) {
-			stream_bufs->in_use = false;
-			stream_bufs->size = copied_size;
-			/* locking here */
-			mutex_lock(&stream->lock);
-			list_add_tail(&stream_bufs->node, &stream->bufs);
-			mutex_unlock(&stream->lock);
-			break;
-		}
-	}
-	return retval;
-}
-
-/* This function copies the captured data returned from SST DSP engine
- * to the user buffers*/
-static int snd_sst_copy_userbuf_capture(struct stream_info *stream,
-			const struct iovec *iovec,
-			struct list_head *copy_to_list)
-{
-	struct snd_sst_user_cap_list *entry, *_entry;
-	struct sst_stream_bufs *kbufs = NULL, *_kbufs;
-	int retval = 0;
-
-	/* copy sent buffers */
-	pr_debug("capture stream copying to user now...\n");
-	list_for_each_entry_safe(kbufs, _kbufs, &stream->bufs, node) {
-		if (kbufs->in_use == true) {
-			/* copy to user */
-			list_for_each_entry_safe(entry, _entry,
-						copy_to_list, node) {
-				if (copy_to_user(iovec[entry->iov_index].iov_base + entry->iov_offset,
-					     kbufs->addr + entry->offset,
-					     entry->size)) {
-					/* Clean up the list and return error */
-					retval = -EFAULT;
-					break;
-				}
-				list_del(&entry->node);
-				kfree(entry);
-			}
-		}
-	}
-	pr_debug("end of cap copy\n");
-	return retval;
-}
-
-/*
- * snd_sst_userbufs_play_cap - constructs the list from user buffers
- *
- * @iovec:pointer to iovec structure
- * @nr_segs:number entries in the iovec structure
- * @str_id:stream id
- * @stream:pointer to stream_info structure
- *
- * This function will traverse the user list and copy the data to the kernel
- * space buffers.
- */
-static int snd_sst_userbufs_play_cap(const struct iovec *iovec,
-			unsigned long nr_segs, unsigned int str_id,
-			struct stream_info *stream)
-{
-	int retval;
-	LIST_HEAD(copy_to_list);
-
-
-	retval = snd_sst_fill_kernel_list(stream, iovec, nr_segs,
-		       &copy_to_list);
-
-	retval = intel_sst_play_capture(stream, str_id);
-	if (retval < 0)
-		return retval;
-
-	if (stream->ops == STREAM_OPS_CAPTURE) {
-		retval = snd_sst_copy_userbuf_capture(stream, iovec,
-				&copy_to_list);
-	}
-	return retval;
-}
-
-/* This function is common function across read/write
-  for user buffers called from system calls*/
-static int intel_sst_read_write(unsigned int str_id, char __user *buf,
-					size_t count)
-{
-	int retval;
-	struct stream_info *stream;
-	struct iovec iovec;
-	unsigned long nr_segs;
-
-	retval = sst_validate_strid(str_id);
-	if (retval)
-		return -EINVAL;
-	stream = &sst_drv_ctx->streams[str_id];
-	if (stream->mmapped == true) {
-		pr_warn("user write and stream is mapped\n");
-		return -EIO;
-	}
-	if (!count)
-		return -EINVAL;
-	stream->curr_bytes = 0;
-	stream->cumm_bytes = 0;
-	/* copy user buf details */
-	pr_debug("new buffers %p, copy size %d, status %d\n" ,
-			buf, (int) count, (int) stream->status);
-
-	stream->buf_type = SST_BUF_USER_STATIC;
-	iovec.iov_base = buf;
-	iovec.iov_len  = count;
-	nr_segs = 1;
-
-	do {
-		retval = snd_sst_userbufs_play_cap(
-				&iovec, nr_segs, str_id, stream);
-		if (retval < 0)
-			break;
-
-	} while (stream->sg_index < nr_segs);
-
-	stream->sg_index = 0;
-	stream->cur_ptr = NULL;
-	if (retval >= 0)
-		retval = stream->cumm_bytes;
-	pr_debug("end of play/rec bytes = %d!!\n", retval);
-	return retval;
-}
-
-/***
- * intel_sst_write - This function is called when user tries to play out data
- *
- * @file_ptr:pointer to file
- * @buf:user buffer to be played out
- * @count:size of tthe buffer
- * @offset:offset to start from
- *
- * writes the encoded data into DSP
- */
-int intel_sst_write(struct file *file_ptr, const char __user *buf,
-			size_t count, loff_t *offset)
-{
-	struct ioctl_pvt_data *data = file_ptr->private_data;
-	int str_id = data->str_id;
-	struct stream_info *stream = &sst_drv_ctx->streams[str_id];
-
-	pr_debug("called for %d\n", str_id);
-	if (stream->status == STREAM_UN_INIT ||
-		stream->status == STREAM_DECODE) {
-		return -EBADRQC;
-	}
-	return intel_sst_read_write(str_id, (char __user *)buf, count);
-}
-
-/*
- * intel_sst_aio_write - write buffers
- *
- * @kiocb:pointer to a structure containing file pointer
- * @iov:list of user buffer to be played out
- * @nr_segs:number of entries
- * @offset:offset to start from
- *
- * This function is called when user tries to play out multiple data buffers
- */
-ssize_t intel_sst_aio_write(struct kiocb *kiocb, const struct iovec *iov,
-			unsigned long nr_segs, loff_t  offset)
-{
-	int retval;
-	struct ioctl_pvt_data *data = kiocb->ki_filp->private_data;
-	int str_id = data->str_id;
-	struct stream_info *stream;
-
-	pr_debug("entry - %ld\n", nr_segs);
-
-	if (is_sync_kiocb(kiocb) == false)
-		return -EINVAL;
-
-	pr_debug("called for str_id %d\n", str_id);
-	retval = sst_validate_strid(str_id);
-	if (retval)
-		return -EINVAL;
-	stream = &sst_drv_ctx->streams[str_id];
-	if (stream->mmapped == true)
-		return -EIO;
-	if (stream->status == STREAM_UN_INIT ||
-		stream->status == STREAM_DECODE) {
-		return -EBADRQC;
-	}
-	stream->curr_bytes = 0;
-	stream->cumm_bytes = 0;
-	pr_debug("new segs %ld, offset %d, status %d\n" ,
-			nr_segs, (int) offset, (int) stream->status);
-	stream->buf_type = SST_BUF_USER_STATIC;
-	do {
-		retval = snd_sst_userbufs_play_cap(iov, nr_segs,
-						str_id, stream);
-		if (retval < 0)
-			break;
-
-	} while (stream->sg_index < nr_segs);
-
-	stream->sg_index = 0;
-	stream->cur_ptr = NULL;
-	if (retval >= 0)
-		retval = stream->cumm_bytes;
-	pr_debug("end of play/rec bytes = %d!!\n", retval);
-	return retval;
-}
-
-/*
- * intel_sst_read - read the encoded data
- *
- * @file_ptr: pointer to file
- * @buf: user buffer to be filled with captured data
- * @count: size of tthe buffer
- * @offset: offset to start from
- *
- * This function is called when user tries to capture data
- */
-int intel_sst_read(struct file *file_ptr, char __user *buf,
-			size_t count, loff_t *offset)
-{
-	struct ioctl_pvt_data *data = file_ptr->private_data;
-	int str_id = data->str_id;
-	struct stream_info *stream = &sst_drv_ctx->streams[str_id];
-
-	pr_debug("called for %d\n", str_id);
-	if (stream->status == STREAM_UN_INIT ||
-			stream->status == STREAM_DECODE)
-		return -EBADRQC;
-	return intel_sst_read_write(str_id, buf, count);
-}
-
-/*
- * intel_sst_aio_read - aio read
- *
- * @kiocb: pointer to a structure containing file pointer
- * @iov: list of user buffer to be filled with captured
- * @nr_segs: number of entries
- * @offset: offset to start from
- *
- * This function is called when user tries to capture out multiple data buffers
- */
-ssize_t intel_sst_aio_read(struct kiocb *kiocb, const struct iovec *iov,
-			 unsigned long nr_segs, loff_t offset)
-{
-	int retval;
-	struct ioctl_pvt_data *data = kiocb->ki_filp->private_data;
-	int str_id = data->str_id;
-	struct stream_info *stream;
-
-	pr_debug("entry - %ld\n", nr_segs);
-
-	if (is_sync_kiocb(kiocb) == false) {
-		pr_debug("aio_read from user space is not allowed\n");
-		return -EINVAL;
-	}
-
-	pr_debug("called for str_id %d\n", str_id);
-	retval = sst_validate_strid(str_id);
-	if (retval)
-		return -EINVAL;
-	stream = &sst_drv_ctx->streams[str_id];
-	if (stream->mmapped == true)
-		return -EIO;
-	if (stream->status == STREAM_UN_INIT ||
-			stream->status == STREAM_DECODE)
-		return -EBADRQC;
-	stream->curr_bytes = 0;
-	stream->cumm_bytes = 0;
-
-	pr_debug("new segs %ld, offset %d, status %d\n" ,
-			nr_segs, (int) offset, (int) stream->status);
-	stream->buf_type = SST_BUF_USER_STATIC;
-	do {
-		retval = snd_sst_userbufs_play_cap(iov, nr_segs,
-						str_id, stream);
-		if (retval < 0)
-			break;
-
-	} while (stream->sg_index < nr_segs);
-
-	stream->sg_index = 0;
-	stream->cur_ptr = NULL;
-	if (retval >= 0)
-		retval = stream->cumm_bytes;
-	pr_debug("end of play/rec bytes = %d!!\n", retval);
-	return retval;
-}
-
-/* sst_print_stream_params - prints the stream parameters (debug fn)*/
-static void sst_print_stream_params(struct snd_sst_get_stream_params *get_prm)
-{
-	pr_debug("codec params:result = %d\n",
-				get_prm->codec_params.result);
-	pr_debug("codec params:stream = %d\n",
-				get_prm->codec_params.stream_id);
-	pr_debug("codec params:codec = %d\n",
-				get_prm->codec_params.codec);
-	pr_debug("codec params:ops = %d\n",
-				get_prm->codec_params.ops);
-	pr_debug("codec params:stream_type = %d\n",
-				get_prm->codec_params.stream_type);
-	pr_debug("pcmparams:sfreq = %d\n",
-				get_prm->pcm_params.sfreq);
-	pr_debug("pcmparams:num_chan = %d\n",
-				get_prm->pcm_params.num_chan);
-	pr_debug("pcmparams:pcm_wd_sz = %d\n",
-				get_prm->pcm_params.pcm_wd_sz);
-	return;
-}
-
-/**
- * sst_create_algo_ipc - create ipc msg for algorithm parameters
- *
- * @algo_params: Algorithm parameters
- * @msg: post msg pointer
- *
- * This function is called to create ipc msg
- */
-int sst_create_algo_ipc(struct snd_ppp_params *algo_params,
-					struct ipc_post **msg)
-{
-	if (sst_create_large_msg(msg))
-		return -ENOMEM;
-	sst_fill_header(&(*msg)->header,
-			IPC_IA_ALG_PARAMS, 1, algo_params->str_id);
-	(*msg)->header.part.data = sizeof(u32) +
-			sizeof(*algo_params) + algo_params->size;
-	memcpy((*msg)->mailbox_data, &(*msg)->header, sizeof(u32));
-	memcpy((*msg)->mailbox_data + sizeof(u32),
-				algo_params, sizeof(*algo_params));
-	return 0;
-}
-
-/**
- * sst_send_algo_ipc - send ipc msg for algorithm parameters
- *
- * @msg: post msg pointer
- *
- * This function is called to send ipc msg
- */
-int sst_send_algo_ipc(struct ipc_post **msg)
-{
-	sst_drv_ctx->ppp_params_blk.condition = false;
-	sst_drv_ctx->ppp_params_blk.ret_code = 0;
-	sst_drv_ctx->ppp_params_blk.on = true;
-	sst_drv_ctx->ppp_params_blk.data = NULL;
-	spin_lock(&sst_drv_ctx->list_spin_lock);
-	list_add_tail(&(*msg)->node, &sst_drv_ctx->ipc_dispatch_list);
-	spin_unlock(&sst_drv_ctx->list_spin_lock);
-	sst_post_message(&sst_drv_ctx->ipc_post_msg_wq);
-	return sst_wait_interruptible_timeout(sst_drv_ctx,
-			&sst_drv_ctx->ppp_params_blk, SST_BLOCK_TIMEOUT);
-}
-
-/**
- * intel_sst_ioctl_dsp - receives the device ioctl's
- *
- * @cmd:Ioctl cmd
- * @arg:data
- *
- * This function is called when a user space component
- * sends a DSP Ioctl to SST driver
- */
-long intel_sst_ioctl_dsp(unsigned int cmd, unsigned long arg)
-{
-	int retval = 0;
-	struct snd_ppp_params algo_params;
-	struct snd_ppp_params *algo_params_copied;
-	struct ipc_post *msg;
-
-	switch (_IOC_NR(cmd)) {
-	case _IOC_NR(SNDRV_SST_SET_ALGO):
-		if (copy_from_user(&algo_params, (void __user *)arg,
-							sizeof(algo_params)))
-			return -EFAULT;
-		if (algo_params.size > SST_MAILBOX_SIZE)
-			return -EMSGSIZE;
-
-		pr_debug("Algo ID %d Str id %d Enable %d Size %d\n",
-			algo_params.algo_id, algo_params.str_id,
-			algo_params.enable, algo_params.size);
-		retval = sst_create_algo_ipc(&algo_params, &msg);
-		if (retval)
-			break;
-		algo_params.reserved = 0;
-		if (copy_from_user(msg->mailbox_data + sizeof(algo_params),
-				algo_params.params, algo_params.size))
-			return -EFAULT;
-
-		retval = sst_send_algo_ipc(&msg);
-		if (retval) {
-			pr_debug("Error in sst_set_algo = %d\n", retval);
-			retval = -EIO;
-		}
-		break;
-
-	case _IOC_NR(SNDRV_SST_GET_ALGO):
-		if (copy_from_user(&algo_params, (void __user *)arg,
-							sizeof(algo_params)))
-			return -EFAULT;
-		pr_debug("Algo ID %d Str id %d Enable %d Size %d\n",
-			algo_params.algo_id, algo_params.str_id,
-			algo_params.enable, algo_params.size);
-		retval = sst_create_algo_ipc(&algo_params, &msg);
-		if (retval)
-			break;
-		algo_params.reserved = 1;
-		retval = sst_send_algo_ipc(&msg);
-		if (retval) {
-			pr_debug("Error in sst_get_algo = %d\n", retval);
-			retval = -EIO;
-			break;
-		}
-		algo_params_copied = (struct snd_ppp_params *)
-					sst_drv_ctx->ppp_params_blk.data;
-		if (algo_params_copied->size > algo_params.size) {
-			pr_debug("mem insufficient to copy\n");
-			retval = -EMSGSIZE;
-			goto free_mem;
-		} else {
-			char __user *tmp;
-
-			if (copy_to_user(algo_params.params,
-					algo_params_copied->params,
-					algo_params_copied->size)) {
-				retval = -EFAULT;
-				goto free_mem;
-			}
-			tmp = (char __user *)arg + offsetof(
-					struct snd_ppp_params, size);
-			if (copy_to_user(tmp, &algo_params_copied->size,
-						 sizeof(__u32))) {
-				retval = -EFAULT;
-				goto free_mem;
-			}
-
-		}
-free_mem:
-		kfree(algo_params_copied->params);
-		kfree(algo_params_copied);
-		break;
-	}
-	return retval;
-}
-
-
-int sst_ioctl_tuning_params(unsigned long arg)
-{
-	struct snd_sst_tuning_params params;
-	struct ipc_post *msg;
-
-	if (copy_from_user(&params, (void __user *)arg, sizeof(params)))
-		return -EFAULT;
-	if (params.size > SST_MAILBOX_SIZE)
-		return -ENOMEM;
-	pr_debug("Parameter %d, Stream %d, Size %d\n", params.type,
-			params.str_id, params.size);
-	if (sst_create_large_msg(&msg))
-		return -ENOMEM;
-
-	sst_fill_header(&msg->header, IPC_IA_TUNING_PARAMS, 1, params.str_id);
-	msg->header.part.data = sizeof(u32) + sizeof(params) + params.size;
-	memcpy(msg->mailbox_data, &msg->header.full, sizeof(u32));
-	memcpy(msg->mailbox_data + sizeof(u32), &params, sizeof(params));
-	if (copy_from_user(msg->mailbox_data + sizeof(params),
-			(void __user *)(unsigned long)params.addr,
-			params.size)) {
-		kfree(msg->mailbox_data);
-		kfree(msg);
-		return -EFAULT;
-	}
-	return sst_send_algo_ipc(&msg);
-}
-/**
- * intel_sst_ioctl - receives the device ioctl's
- * @file_ptr:pointer to file
- * @cmd:Ioctl cmd
- * @arg:data
- *
- * This function is called by OS when a user space component
- * sends an Ioctl to SST driver
- */
-long intel_sst_ioctl(struct file *file_ptr, unsigned int cmd, unsigned long arg)
-{
-	int retval = 0;
-	struct ioctl_pvt_data *data = NULL;
-	int str_id = 0, minor = 0;
-
-	data = file_ptr->private_data;
-	if (data) {
-		minor = 0;
-		str_id = data->str_id;
-	} else
-		minor = 1;
-
-	if (sst_drv_ctx->sst_state != SST_FW_RUNNING)
-		return -EBUSY;
-
-	switch (_IOC_NR(cmd)) {
-	case _IOC_NR(SNDRV_SST_STREAM_PAUSE):
-		pr_debug("IOCTL_PAUSE received for %d!\n", str_id);
-		if (minor != STREAM_MODULE) {
-			retval = -EBADRQC;
-			break;
-		}
-		retval = sst_pause_stream(str_id);
-		break;
-
-	case _IOC_NR(SNDRV_SST_STREAM_RESUME):
-		pr_debug("SNDRV_SST_IOCTL_RESUME received!\n");
-		if (minor != STREAM_MODULE) {
-			retval = -EBADRQC;
-			break;
-		}
-		retval = sst_resume_stream(str_id);
-		break;
-
-	case _IOC_NR(SNDRV_SST_STREAM_SET_PARAMS): {
-		struct snd_sst_params str_param;
-
-		pr_debug("IOCTL_SET_PARAMS received!\n");
-		if (minor != STREAM_MODULE) {
-			retval = -EBADRQC;
-			break;
-		}
-
-		if (copy_from_user(&str_param, (void __user *)arg,
-				sizeof(str_param))) {
-			retval = -EFAULT;
-			break;
-		}
-
-		if (!str_id) {
-
-			retval = sst_get_stream(&str_param);
-			if (retval > 0) {
-				struct stream_info *str_info;
-				char __user *dest;
-
-				sst_drv_ctx->stream_cnt++;
-				data->str_id = retval;
-				str_info = &sst_drv_ctx->streams[retval];
-				str_info->src = SST_DRV;
-				dest = (char __user *)arg + offsetof(struct snd_sst_params, stream_id);
-				retval = copy_to_user(dest, &retval, sizeof(__u32));
-				if (retval)
-					retval = -EFAULT;
-			} else {
-				if (retval == -SST_ERR_INVALID_PARAMS)
-					retval = -EINVAL;
-			}
-		} else {
-			pr_debug("SET_STREAM_PARAMS received!\n");
-			/* allocated set params only */
-			retval = sst_set_stream_param(str_id, &str_param);
-			/* Block the call for reply */
-			if (!retval) {
-				int sfreq = 0, word_size = 0, num_channel = 0;
-				sfreq =	str_param.sparams.uc.pcm_params.sfreq;
-				word_size = str_param.sparams.uc.pcm_params.pcm_wd_sz;
-				num_channel = str_param.sparams.uc.pcm_params.num_chan;
-				if (str_param.ops == STREAM_OPS_CAPTURE) {
-					sst_drv_ctx->scard_ops->\
-					set_pcm_audio_params(sfreq,
-						word_size, num_channel);
-				}
-			}
-		}
-		break;
-	}
-	case _IOC_NR(SNDRV_SST_SET_VOL): {
-		struct snd_sst_vol set_vol;
-
-		if (copy_from_user(&set_vol, (void __user *)arg,
-				sizeof(set_vol))) {
-			pr_debug("copy failed\n");
-			retval = -EFAULT;
-			break;
-		}
-		pr_debug("SET_VOLUME received for %d!\n",
-				set_vol.stream_id);
-		if (minor == STREAM_MODULE && set_vol.stream_id == 0) {
-			pr_debug("invalid operation!\n");
-			retval = -EPERM;
-			break;
-		}
-		retval = sst_set_vol(&set_vol);
-		break;
-	}
-	case _IOC_NR(SNDRV_SST_GET_VOL): {
-		struct snd_sst_vol get_vol;
-
-		if (copy_from_user(&get_vol, (void __user *)arg,
-				sizeof(get_vol))) {
-			retval = -EFAULT;
-			break;
-		}
-		pr_debug("IOCTL_GET_VOLUME received for stream = %d!\n",
-				get_vol.stream_id);
-		if (minor == STREAM_MODULE && get_vol.stream_id == 0) {
-			pr_debug("invalid operation!\n");
-			retval = -EPERM;
-			break;
-		}
-		retval = sst_get_vol(&get_vol);
-		if (retval) {
-			retval = -EIO;
-			break;
-		}
-		pr_debug("id:%d\n, vol:%d, ramp_dur:%d, ramp_type:%d\n",
-				get_vol.stream_id, get_vol.volume,
-				get_vol.ramp_duration, get_vol.ramp_type);
-		if (copy_to_user((struct snd_sst_vol __user *)arg,
-				&get_vol, sizeof(get_vol))) {
-			retval = -EFAULT;
-			break;
-		}
-		/*sst_print_get_vol_info(str_id, &get_vol);*/
-		break;
-	}
-
-	case _IOC_NR(SNDRV_SST_MUTE): {
-		struct snd_sst_mute set_mute;
-
-		if (copy_from_user(&set_mute, (void __user *)arg,
-				sizeof(set_mute))) {
-			retval = -EFAULT;
-			break;
-		}
-		pr_debug("SNDRV_SST_SET_VOLUME received for %d!\n",
-			set_mute.stream_id);
-		if (minor == STREAM_MODULE && set_mute.stream_id == 0) {
-			retval = -EPERM;
-			break;
-		}
-		retval = sst_set_mute(&set_mute);
-		break;
-	}
-	case _IOC_NR(SNDRV_SST_STREAM_GET_PARAMS): {
-		struct snd_sst_get_stream_params get_params;
-
-		pr_debug("IOCTL_GET_PARAMS received!\n");
-		if (minor != 0) {
-			retval = -EBADRQC;
-			break;
-		}
-
-		retval = sst_get_stream_params(str_id, &get_params);
-		if (retval) {
-			retval = -EIO;
-			break;
-		}
-		if (copy_to_user((struct snd_sst_get_stream_params __user *)arg,
-					&get_params, sizeof(get_params))) {
-			retval = -EFAULT;
-			break;
-		}
-		sst_print_stream_params(&get_params);
-		break;
-	}
-
-	case _IOC_NR(SNDRV_SST_MMAP_PLAY):
-	case _IOC_NR(SNDRV_SST_MMAP_CAPTURE): {
-		struct snd_sst_mmap_buffs mmap_buf;
-
-		pr_debug("SNDRV_SST_MMAP_PLAY/CAPTURE received!\n");
-		if (minor != STREAM_MODULE) {
-			retval = -EBADRQC;
-			break;
-		}
-		if (copy_from_user(&mmap_buf, (void __user *)arg,
-				sizeof(mmap_buf))) {
-			retval = -EFAULT;
-			break;
-		}
-		retval = intel_sst_mmap_play_capture(str_id, &mmap_buf);
-		break;
-	}
-	case _IOC_NR(SNDRV_SST_STREAM_DROP):
-		pr_debug("SNDRV_SST_IOCTL_DROP received!\n");
-		if (minor != STREAM_MODULE) {
-			retval = -EINVAL;
-			break;
-		}
-		retval = sst_drop_stream(str_id);
-		break;
-
-	case _IOC_NR(SNDRV_SST_STREAM_GET_TSTAMP): {
-		struct snd_sst_tstamp tstamp = {0};
-		unsigned long long time, freq, mod;
-
-		pr_debug("SNDRV_SST_STREAM_GET_TSTAMP received!\n");
-		if (minor != STREAM_MODULE) {
-			retval = -EBADRQC;
-			break;
-		}
-		memcpy_fromio(&tstamp,
-			sst_drv_ctx->mailbox + SST_TIME_STAMP + str_id * sizeof(tstamp),
-			sizeof(tstamp));
-		time = tstamp.samples_rendered;
-		freq = (unsigned long long) tstamp.sampling_frequency;
-		time = time * 1000; /* converting it to ms */
-		mod = do_div(time, freq);
-		if (copy_to_user((void __user *)arg, &time,
-				sizeof(unsigned long long)))
-			retval = -EFAULT;
-		break;
-	}
-
-	case _IOC_NR(SNDRV_SST_STREAM_START):{
-		struct stream_info *stream;
-
-		pr_debug("SNDRV_SST_STREAM_START received!\n");
-		if (minor != STREAM_MODULE) {
-			retval = -EINVAL;
-			break;
-		}
-		retval = sst_validate_strid(str_id);
-		if (retval)
-			break;
-		stream = &sst_drv_ctx->streams[str_id];
-		mutex_lock(&stream->lock);
-		if (stream->status == STREAM_INIT &&
-			stream->need_draining != true) {
-			stream->prev = stream->status;
-			stream->status = STREAM_RUNNING;
-			if (stream->ops == STREAM_OPS_PLAYBACK ||
-				stream->ops == STREAM_OPS_PLAYBACK_DRM) {
-				retval = sst_play_frame(str_id);
-			} else if (stream->ops == STREAM_OPS_CAPTURE)
-				retval = sst_capture_frame(str_id);
-			else {
-				retval = -EINVAL;
-				mutex_unlock(&stream->lock);
-				break;
-			}
-			if (retval < 0) {
-				stream->status = STREAM_INIT;
-				mutex_unlock(&stream->lock);
-				break;
-			}
-		} else {
-			retval = -EINVAL;
-		}
-		mutex_unlock(&stream->lock);
-		break;
-	}
-
-	case _IOC_NR(SNDRV_SST_SET_TARGET_DEVICE): {
-		struct snd_sst_target_device target_device;
-
-		pr_debug("SET_TARGET_DEVICE received!\n");
-		if (copy_from_user(&target_device, (void __user *)arg,
-				sizeof(target_device))) {
-			retval = -EFAULT;
-			break;
-		}
-		if (minor != AM_MODULE) {
-			retval = -EBADRQC;
-			break;
-		}
-		retval = sst_target_device_select(&target_device);
-		break;
-	}
-
-	case _IOC_NR(SNDRV_SST_DRIVER_INFO): {
-		struct snd_sst_driver_info info;
-
-		pr_debug("SNDRV_SST_DRIVER_INFO received\n");
-		info.version = SST_VERSION_NUM;
-		/* hard coding, shud get sumhow later */
-		info.active_pcm_streams = sst_drv_ctx->stream_cnt -
-						sst_drv_ctx->encoded_cnt;
-		info.active_enc_streams = sst_drv_ctx->encoded_cnt;
-		info.max_pcm_streams = MAX_ACTIVE_STREAM - MAX_ENC_STREAM;
-		info.max_enc_streams = MAX_ENC_STREAM;
-		info.buf_per_stream = sst_drv_ctx->mmap_len;
-		if (copy_to_user((void __user *)arg, &info,
-				sizeof(info)))
-			retval = -EFAULT;
-		break;
-	}
-
-	case _IOC_NR(SNDRV_SST_STREAM_DECODE): {
-		struct snd_sst_dbufs param;
-		struct snd_sst_dbufs dbufs_local;
-		struct snd_sst_buffs ibufs, obufs;
-		struct snd_sst_buff_entry *ibuf_tmp, *obuf_tmp;
-		char __user *dest;
-
-		pr_debug("SNDRV_SST_STREAM_DECODE received\n");
-		if (minor != STREAM_MODULE) {
-			retval = -EBADRQC;
-			break;
-		}
-		if (copy_from_user(&param, (void __user *)arg,
-				sizeof(param))) {
-			retval = -EFAULT;
-			break;
-		}
-
-		dbufs_local.input_bytes_consumed = param.input_bytes_consumed;
-		dbufs_local.output_bytes_produced =
-					param.output_bytes_produced;
-
-		if (copy_from_user(&ibufs, (void __user *)param.ibufs, sizeof(ibufs))) {
-			retval = -EFAULT;
-			break;
-		}
-		if (copy_from_user(&obufs, (void __user *)param.obufs, sizeof(obufs))) {
-			retval = -EFAULT;
-			break;
-		}
-
-		ibuf_tmp = kcalloc(ibufs.entries, sizeof(*ibuf_tmp), GFP_KERNEL);
-		obuf_tmp = kcalloc(obufs.entries, sizeof(*obuf_tmp), GFP_KERNEL);
-		if (!ibuf_tmp || !obuf_tmp) {
-			retval = -ENOMEM;
-			goto free_iobufs;
-		}
-
-		if (copy_from_user(ibuf_tmp, (void __user *)ibufs.buff_entry,
-				ibufs.entries * sizeof(*ibuf_tmp))) {
-			retval = -EFAULT;
-			goto free_iobufs;
-		}
-		ibufs.buff_entry = ibuf_tmp;
-		dbufs_local.ibufs = &ibufs;
-
-		if (copy_from_user(obuf_tmp, (void __user *)obufs.buff_entry,
-				obufs.entries * sizeof(*obuf_tmp))) {
-			retval = -EFAULT;
-			goto free_iobufs;
-		}
-		obufs.buff_entry = obuf_tmp;
-		dbufs_local.obufs = &obufs;
-
-		retval = sst_decode(str_id, &dbufs_local);
-		if (retval) {
-			retval = -EAGAIN;
-			goto free_iobufs;
-		}
-
-		dest = (char __user *)arg + offsetof(struct snd_sst_dbufs, input_bytes_consumed);
-		if (copy_to_user(dest,
-				&dbufs_local.input_bytes_consumed,
-				sizeof(unsigned long long))) {
-			retval = -EFAULT;
-			goto free_iobufs;
-		}
-
-		dest = (char __user *)arg + offsetof(struct snd_sst_dbufs, input_bytes_consumed);
-		if (copy_to_user(dest,
-				&dbufs_local.output_bytes_produced,
-				sizeof(unsigned long long))) {
-			retval = -EFAULT;
-			goto free_iobufs;
-		}
-free_iobufs:
-		kfree(ibuf_tmp);
-		kfree(obuf_tmp);
-		break;
-	}
-
-	case _IOC_NR(SNDRV_SST_STREAM_DRAIN):
-		pr_debug("SNDRV_SST_STREAM_DRAIN received\n");
-		if (minor != STREAM_MODULE) {
-			retval = -EINVAL;
-			break;
-		}
-		retval = sst_drain_stream(str_id);
-		break;
-
-	case _IOC_NR(SNDRV_SST_STREAM_BYTES_DECODED): {
-		unsigned long long __user *bytes = (unsigned long long __user *)arg;
-		struct snd_sst_tstamp tstamp = {0};
-
-		pr_debug("STREAM_BYTES_DECODED received!\n");
-		if (minor != STREAM_MODULE) {
-			retval = -EINVAL;
-			break;
-		}
-		memcpy_fromio(&tstamp,
-			sst_drv_ctx->mailbox + SST_TIME_STAMP + str_id * sizeof(tstamp),
-			sizeof(tstamp));
-		if (copy_to_user(bytes, &tstamp.bytes_processed,
-				sizeof(*bytes)))
-			retval = -EFAULT;
-		break;
-	}
-	case _IOC_NR(SNDRV_SST_FW_INFO): {
-		struct snd_sst_fw_info *fw_info;
-
-		pr_debug("SNDRV_SST_FW_INFO received\n");
-
-		fw_info = kzalloc(sizeof(*fw_info), GFP_ATOMIC);
-		if (!fw_info) {
-			retval = -ENOMEM;
-			break;
-		}
-		retval = sst_get_fw_info(fw_info);
-		if (retval) {
-			retval = -EIO;
-			kfree(fw_info);
-			break;
-		}
-		if (copy_to_user((struct snd_sst_dbufs __user *)arg,
-				fw_info, sizeof(*fw_info))) {
-			kfree(fw_info);
-			retval = -EFAULT;
-			break;
-		}
-		/*sst_print_fw_info(fw_info);*/
-		kfree(fw_info);
-		break;
-	}
-	case _IOC_NR(SNDRV_SST_GET_ALGO):
-	case _IOC_NR(SNDRV_SST_SET_ALGO):
-		if (minor != AM_MODULE) {
-			retval = -EBADRQC;
-			break;
-		}
-		retval = intel_sst_ioctl_dsp(cmd, arg);
-		break;
-
-	case _IOC_NR(SNDRV_SST_TUNING_PARAMS):
-		if (minor != AM_MODULE) {
-			retval = -EBADRQC;
-			break;
-		}
-		retval = sst_ioctl_tuning_params(arg);
-		break;
-
-	default:
-		retval = -EINVAL;
-	}
-	pr_debug("intel_sst_ioctl:complete ret code = %d\n", retval);
-	return retval;
-}
-
diff --git a/drivers/staging/intel_sst/intel_sst_common.h b/drivers/staging/intel_sst/intel_sst_common.h
deleted file mode 100644
index 870981ba3c97..000000000000
--- a/drivers/staging/intel_sst/intel_sst_common.h
+++ /dev/null
@@ -1,623 +0,0 @@
-#ifndef __INTEL_SST_COMMON_H__
-#define __INTEL_SST_COMMON_H__
-/*
- *  intel_sst_common.h - Intel SST Driver for audio engine
- *
- *  Copyright (C) 2008-10 Intel Corporation
- *  Authors:	Vinod Koul <vinod.koul@intel.com>
- *		Harsha Priya <priya.harsha@intel.com>
- *		Dharageswari R <dharageswari.r@intel.com>
- *		KP Jeeja <jeeja.kp@intel.com>
- *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; version 2 of the License.
- *
- *  This program is distributed in the hope that it will be useful, but
- *  WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  Common private declarations for SST
- */
-
-#define SST_DRIVER_VERSION "1.2.17"
-#define SST_VERSION_NUM 0x1217
-
-/* driver names */
-#define SST_DRV_NAME "intel_sst_driver"
-#define SST_MRST_PCI_ID 0x080A
-#define SST_MFLD_PCI_ID 0x082F
-#define PCI_ID_LENGTH 4
-#define SST_SUSPEND_DELAY 2000
-#define FW_CONTEXT_MEM (64*1024)
-
-enum sst_states {
-	SST_FW_LOADED = 1,
-	SST_FW_RUNNING,
-	SST_UN_INIT,
-	SST_ERROR,
-	SST_SUSPENDED
-};
-
-#define MAX_ACTIVE_STREAM	3
-#define MAX_ENC_STREAM		1
-#define MAX_AM_HANDLES		1
-#define ALLOC_TIMEOUT		5000
-/* SST numbers */
-#define SST_BLOCK_TIMEOUT	5000
-#define TARGET_DEV_BLOCK_TIMEOUT	5000
-
-#define BLOCK_UNINIT		-1
-#define RX_TIMESLOT_UNINIT	-1
-
-/* SST register map */
-#define SST_CSR			0x00
-#define SST_PISR		0x08
-#define SST_PIMR		0x10
-#define SST_ISRX		0x18
-#define SST_IMRX		0x28
-#define SST_IPCX		0x38 /* IPC IA-SST */
-#define SST_IPCD		0x40 /* IPC SST-IA */
-#define SST_ISRD		0x20 /* dummy register for shim workaround */
-#define SST_SHIM_SIZE		0X44
-
-#define SPI_MODE_ENABLE_BASE_ADDR 0xffae4000
-#define FW_SIGNATURE_SIZE	4
-
-/* PMIC and SST hardware states */
-enum sst_mad_states {
-	SND_MAD_UN_INIT = 0,
-	SND_MAD_INIT_DONE,
-};
-
-/* stream states */
-enum sst_stream_states {
-	STREAM_UN_INIT	= 0,	/* Freed/Not used stream */
-	STREAM_RUNNING	= 1,	/* Running */
-	STREAM_PAUSED	= 2,	/* Paused stream */
-	STREAM_DECODE	= 3,	/* stream is in decoding only state */
-	STREAM_INIT	= 4,	/* stream init, waiting for data */
-};
-
-
-enum sst_ram_type {
-	SST_IRAM	= 1,
-	SST_DRAM	= 2,
-};
-/* SST shim registers to structure mapping  */
-union config_status_reg {
-	struct {
-		u32 mfld_strb:1;
-		u32 sst_reset:1;
-		u32 hw_rsvd:3;
-		u32 sst_clk:2;
-		u32 bypass:3;
-		u32 run_stall:1;
-		u32 rsvd1:2;
-		u32 strb_cntr_rst:1;
-		u32 rsvd:18;
-	} part;
-	u32 full;
-};
-
-union interrupt_reg {
-	struct {
-		u32 done_interrupt:1;
-		u32 busy_interrupt:1;
-		u32 rsvd:30;
-	} part;
-	u32 full;
-};
-
-union sst_pisr_reg {
-	struct {
-		u32 pssp0:1;
-		u32 pssp1:1;
-		u32 rsvd0:3;
-		u32 dmac:1;
-		u32 rsvd1:26;
-	} part;
-	u32 full;
-};
-
-union sst_pimr_reg {
-	struct {
-		u32 ssp0:1;
-		u32 ssp1:1;
-		u32 rsvd0:3;
-		u32 dmac:1;
-		u32 rsvd1:10;
-		u32 ssp0_sc:1;
-		u32 ssp1_sc:1;
-		u32 rsvd2:3;
-		u32 dmac_sc:1;
-		u32 rsvd3:10;
-	} part;
-	u32 full;
-};
-
-
-struct sst_stream_bufs {
-	struct list_head	node;
-	u32			size;
-	const char		*addr;
-	u32			data_copied;
-	bool			in_use;
-	u32			offset;
-};
-
-struct snd_sst_user_cap_list {
-	unsigned int iov_index; /* index of iov */
-	unsigned long iov_offset; /* offset in iov */
-	unsigned long offset; /* offset in kmem */
-	unsigned long size; /* size copied */
-	struct list_head node;
-};
-/*
-This structure is used to block a user/fw data call to another
-fw/user call
-*/
-struct sst_block {
-	bool	condition; /* condition for blocking check */
-	int	ret_code; /* ret code when block is released */
-	void	*data; /* data to be appsed for block if any */
-	bool	on;
-};
-
-enum snd_sst_buf_type {
-	SST_BUF_USER_STATIC = 1,
-	SST_BUF_USER_DYNAMIC,
-	SST_BUF_MMAP_STATIC,
-	SST_BUF_MMAP_DYNAMIC,
-};
-
-enum snd_src {
-	SST_DRV = 1,
-	MAD_DRV = 2
-};
-
-/**
- * struct stream_info - structure that holds the stream information
- *
- * @status : stream current state
- * @prev : stream prev state
- * @codec : stream codec
- * @sst_id : stream id
- * @ops : stream operation pb/cp/drm...
- * @bufs: stream buffer list
- * @lock : stream mutex for protecting state
- * @pcm_lock : spinlock for pcm path only
- * @mmapped : is stream mmapped
- * @sg_index : current stream user buffer index
- * @cur_ptr : stream user buffer pointer
- * @buf_entry : current user buffer
- * @data_blk : stream block for data operations
- * @ctrl_blk : stream block for ctrl operations
- * @buf_type : stream user buffer type
- * @pcm_substream : PCM substream
- * @period_elapsed : PCM period elapsed callback
- * @sfreq : stream sampling freq
- * @decode_ibuf : Decoded i/p buffers pointer
- * @decode_obuf : Decoded o/p buffers pointer
- * @decode_isize : Decoded i/p buffers size
- * @decode_osize : Decoded o/p buffers size
- * @decode_ibuf_type : Decoded i/p buffer type
- * @decode_obuf_type : Decoded o/p buffer type
- * @idecode_alloc : Decode alloc index
- * @need_draining : stream set for drain
- * @str_type : stream type
- * @curr_bytes : current bytes decoded
- * @cumm_bytes : cummulative bytes decoded
- * @str_type : stream type
- * @src : stream source
- * @device : output device type (medfield only)
- * @pcm_slot : pcm slot value
- */
-struct stream_info {
-	unsigned int		status;
-	unsigned int		prev;
-	u8			codec;
-	unsigned int		sst_id;
-	unsigned int		ops;
-	struct list_head	bufs;
-	struct mutex		lock; /* mutex */
-	spinlock_t          pcm_lock;
-	bool			mmapped;
-	unsigned int		sg_index; /*  current buf Index  */
-	unsigned char __user 	*cur_ptr; /*  Current static bufs  */
-	struct snd_sst_buf_entry __user *buf_entry;
-	struct sst_block	data_blk; /* stream ops block */
-	struct sst_block	ctrl_blk; /* stream control cmd block */
-	enum snd_sst_buf_type   buf_type;
-	void			*pcm_substream;
-	void (*period_elapsed) (void *pcm_substream);
-	unsigned int		sfreq;
-	void			*decode_ibuf, *decode_obuf;
-	unsigned int		decode_isize, decode_osize;
-	u8 decode_ibuf_type, decode_obuf_type;
-	unsigned int		idecode_alloc;
-	unsigned int		need_draining;
-	unsigned int		str_type;
-	u32			curr_bytes;
-	u32			cumm_bytes;
-	u32			src;
-	enum snd_sst_audio_device_type device;
-	u8			pcm_slot;
-};
-
-/*
- * struct stream_alloc_bloc - this structure is used for blocking the user's
- * alloc calls to fw's response to alloc calls
- *
- * @sst_id : session id of blocked stream
- * @ops_block : ops block struture
- */
-struct stream_alloc_block {
-	int			sst_id; /* session id of blocked stream */
-	struct sst_block	ops_block; /* ops block struture */
-};
-
-#define SST_FW_SIGN "$SST"
-#define SST_FW_LIB_SIGN "$LIB"
-
-/*
- * struct fw_header - FW file headers
- *
- * @signature : FW signature
- * @modules : # of modules
- * @file_format : version of header format
- * @reserved : reserved fields
- */
-struct fw_header {
-	unsigned char signature[FW_SIGNATURE_SIZE]; /* FW signature */
-	u32 file_size; /* size of fw minus this header */
-	u32 modules; /*  # of modules */
-	u32 file_format; /* version of header format */
-	u32 reserved[4];
-};
-
-struct fw_module_header {
-	unsigned char signature[FW_SIGNATURE_SIZE]; /* module signature */
-	u32 mod_size; /* size of module */
-	u32 blocks; /* # of blocks */
-	u32 type; /* codec type, pp lib */
-	u32 entry_point;
-};
-
-struct dma_block_info {
-	enum sst_ram_type	type;	/* IRAM/DRAM */
-	u32			size;	/* Bytes */
-	u32			ram_offset; /* Offset in I/DRAM */
-	u32			rsvd;	/* Reserved field */
-};
-
-struct ioctl_pvt_data {
-	int			str_id;
-	int			pvt_id;
-};
-
-struct sst_ipc_msg_wq {
-	union ipc_header	header;
-	char mailbox[SST_MAILBOX_SIZE];
-	struct work_struct	wq;
-};
-
-struct mad_ops_wq {
-	int stream_id;
-	enum sst_controls control_op;
-	struct work_struct	wq;
-
-};
-
-#define SST_MMAP_PAGES	(640*1024 / PAGE_SIZE)
-#define SST_MMAP_STEP	(40*1024 / PAGE_SIZE)
-
-/***
- * struct intel_sst_drv - driver ops
- *
- * @pmic_state : pmic state
- * @pmic_vendor : pmic vendor detected
- * @sst_state : current sst device state
- * @pci_id : PCI device id loaded
- * @shim : SST shim pointer
- * @mailbox : SST mailbox pointer
- * @iram : SST IRAM pointer
- * @dram : SST DRAM pointer
- * @shim_phy_add : SST shim phy addr
- * @ipc_dispatch_list : ipc messages dispatched
- * @ipc_post_msg_wq : wq to post IPC messages context
- * @ipc_process_msg : wq to process msgs from FW context
- * @ipc_process_reply : wq to process reply from FW context
- * @ipc_post_msg : wq to post reply from FW context
- * @mad_ops : MAD driver operations registered
- * @mad_wq : MAD driver wq
- * @post_msg_wq : wq to post IPC messages
- * @process_msg_wq : wq to process msgs from FW
- * @process_reply_wq : wq to process reply from FW
- * @streams : sst stream contexts
- * @alloc_block : block structure for alloc
- * @tgt_dev_blk : block structure for target device
- * @fw_info_blk : block structure for fw info block
- * @vol_info_blk : block structure for vol info block
- * @mute_info_blk : block structure for mute info block
- * @hs_info_blk : block structure for hs info block
- * @list_lock : sst driver list lock (deprecated)
- * @list_spin_lock : sst driver spin lock block
- * @scard_ops : sst card ops
- * @pci : sst pci device struture
- * @active_streams : sst active streams
- * @sst_lock : sst device lock
- * @stream_lock : sst stream lock
- * @unique_id : sst unique id
- * @stream_cnt : total sst active stream count
- * @pb_streams : total active pb streams
- * @cp_streams : total active cp streams
- * @lpe_stalled : lpe stall status
- * @pmic_port_instance : active pmic port instance
- * @rx_time_slot_status : active rx slot
- * @lpaudio_start : lpaudio status
- * @audio_start : audio status
- * @devt_d : pointer to /dev/lpe node
- * @devt_c : pointer to /dev/lpe_ctrl node
- * @max_streams : max streams allowed
- */
-struct intel_sst_drv {
-	bool			pmic_state;
-	int			pmic_vendor;
-	int			sst_state;
-	unsigned int		pci_id;
-	void __iomem		*shim;
-	void __iomem		*mailbox;
-	void __iomem		*iram;
-	void __iomem		*dram;
-	unsigned int		shim_phy_add;
-	struct list_head	ipc_dispatch_list;
-	struct work_struct	ipc_post_msg_wq;
-	struct sst_ipc_msg_wq	ipc_process_msg;
-	struct sst_ipc_msg_wq	ipc_process_reply;
-	struct sst_ipc_msg_wq	ipc_post_msg;
-	struct mad_ops_wq	mad_ops;
-	wait_queue_head_t	wait_queue;
-	struct workqueue_struct *mad_wq;
-	struct workqueue_struct *post_msg_wq;
-	struct workqueue_struct *process_msg_wq;
-	struct workqueue_struct *process_reply_wq;
-
-	struct stream_info	streams[MAX_NUM_STREAMS];
-	struct stream_alloc_block alloc_block[MAX_ACTIVE_STREAM];
-	struct sst_block	tgt_dev_blk, fw_info_blk, ppp_params_blk,
-				vol_info_blk, mute_info_blk, hs_info_blk;
-	struct mutex		list_lock;/* mutex for IPC list locking */
-	spinlock_t	list_spin_lock; /* mutex for IPC list locking */
-	struct snd_pmic_ops	*scard_ops;
-	struct pci_dev		*pci;
-	int active_streams[MAX_NUM_STREAMS];
-	void			*mmap_mem;
-	struct mutex            sst_lock;
-	struct mutex		stream_lock;
-	unsigned int		mmap_len;
-	unsigned int		unique_id;
-	unsigned int		stream_cnt;	/* total streams */
-	unsigned int		encoded_cnt;	/* enocded streams only */
-	unsigned int		am_cnt;
-	unsigned int		pb_streams;	/* pb streams active */
-	unsigned int		cp_streams;	/* cp streams active */
-	unsigned int		lpe_stalled; /* LPE is stalled or not */
-	unsigned int		pmic_port_instance; /*pmic port instance*/
-	int			rx_time_slot_status;
-	unsigned int		lpaudio_start;
-		/* 1 - LPA stream(MP3 pb) in progress*/
-	unsigned int		audio_start;
-	dev_t			devt_d, devt_c;
-	unsigned int		max_streams;
-	unsigned int		*fw_cntx;
-	unsigned int		fw_cntx_size;
-
-	unsigned int		fw_downloaded;
-};
-
-extern struct intel_sst_drv *sst_drv_ctx;
-
-#define CHIP_REV_REG 0xff108000
-#define CHIP_REV_ADDR 0x78
-
-/* misc definitions */
-#define FW_DWNL_ID 0xFF
-#define LOOP1 0x11111111
-#define LOOP2 0x22222222
-#define LOOP3 0x33333333
-#define LOOP4 0x44444444
-
-#define SST_DEFAULT_PMIC_PORT 1 /*audio port*/
-/* NOTE: status will have +ve for good cases and -ve for error ones */
-#define MAX_STREAM_FIELD 255
-
-int sst_alloc_stream(char *params, unsigned int stream_ops, u8 codec,
-						unsigned int session_id);
-int sst_alloc_stream_response(unsigned int str_id,
-				struct snd_sst_alloc_response *response);
-int sst_stalled(void);
-int sst_pause_stream(int id);
-int sst_resume_stream(int id);
-int sst_enable_rx_timeslot(int status);
-int sst_drop_stream(int id);
-int sst_free_stream(int id);
-int sst_start_stream(int streamID);
-int sst_play_frame(int streamID);
-int sst_pcm_play_frame(int str_id, struct sst_stream_bufs *sst_buf);
-int sst_capture_frame(int streamID);
-int sst_set_stream_param(int streamID, struct snd_sst_params *str_param);
-int sst_target_device_select(struct snd_sst_target_device *target_device);
-int sst_decode(int str_id, struct snd_sst_dbufs *dbufs);
-int sst_get_decoded_bytes(int str_id, unsigned long long *bytes);
-int sst_get_fw_info(struct snd_sst_fw_info *info);
-int sst_get_stream_params(int str_id,
-		struct snd_sst_get_stream_params *get_params);
-int sst_get_stream(struct snd_sst_params *str_param);
-int sst_get_stream_allocated(struct snd_sst_params *str_param,
-				struct snd_sst_lib_download **lib_dnld);
-int sst_drain_stream(int str_id);
-int sst_get_vol(struct snd_sst_vol *set_vol);
-int sst_set_vol(struct snd_sst_vol *set_vol);
-int sst_set_mute(struct snd_sst_mute *set_mute);
-
-
-void sst_post_message(struct work_struct *work);
-void sst_process_message(struct work_struct *work);
-void sst_process_reply(struct work_struct *work);
-void sst_process_mad_ops(struct work_struct *work);
-void sst_process_mad_jack_detection(struct work_struct *work);
-
-long intel_sst_ioctl(struct file *file_ptr, unsigned int cmd,
-			unsigned long arg);
-int intel_sst_open(struct inode *i_node, struct file *file_ptr);
-int intel_sst_open_cntrl(struct inode *i_node, struct file *file_ptr);
-int intel_sst_release(struct inode *i_node, struct file *file_ptr);
-int intel_sst_release_cntrl(struct inode *i_node, struct file *file_ptr);
-int intel_sst_read(struct file *file_ptr, char __user *buf,
-			size_t count, loff_t *ppos);
-int intel_sst_write(struct file *file_ptr, const char __user *buf,
-			size_t count, loff_t *ppos);
-int intel_sst_mmap(struct file *fp, struct vm_area_struct *vma);
-ssize_t intel_sst_aio_write(struct kiocb *kiocb, const struct iovec *iov,
-			unsigned long nr_segs, loff_t  offset);
-ssize_t intel_sst_aio_read(struct kiocb *kiocb, const struct iovec *iov,
-			unsigned long nr_segs, loff_t offset);
-
-int sst_load_fw(const struct firmware *fw, void *context);
-int sst_load_library(struct snd_sst_lib_download *lib, u8 ops);
-int sst_spi_mode_enable(void);
-int sst_get_block_stream(struct intel_sst_drv *sst_drv_ctx);
-
-int sst_wait_interruptible(struct intel_sst_drv *sst_drv_ctx,
-				struct sst_block *block);
-int sst_wait_interruptible_timeout(struct intel_sst_drv *sst_drv_ctx,
-		struct sst_block *block, int timeout);
-int sst_wait_timeout(struct intel_sst_drv *sst_drv_ctx,
-		struct stream_alloc_block *block);
-int sst_create_large_msg(struct ipc_post **arg);
-int sst_create_short_msg(struct ipc_post **arg);
-void sst_wake_up_alloc_block(struct intel_sst_drv *sst_drv_ctx,
-		u8 sst_id, int status, void *data);
-void sst_clear_interrupt(void);
-int intel_sst_resume(struct pci_dev *pci);
-int sst_download_fw(void);
-void free_stream_context(unsigned int str_id);
-void sst_clean_stream(struct stream_info *stream);
-
-/*
- * sst_fill_header - inline to fill sst header
- *
- * @header : ipc header
- * @msg : IPC message to be sent
- * @large : is ipc large msg
- * @str_id : stream id
- *
- * this function is an inline function that sets the headers before
- * sending a message
- */
-static inline void sst_fill_header(union ipc_header *header,
-				int msg, int large, int str_id)
-{
-	header->part.msg_id = msg;
-	header->part.str_id = str_id;
-	header->part.large = large;
-	header->part.done = 0;
-	header->part.busy = 1;
-	header->part.data = 0;
-}
-
-/*
- * sst_assign_pvt_id - assign a pvt id for stream
- *
- * @sst_drv_ctx : driver context
- *
- * this inline function assigns a private id for calls that dont have stream
- * context yet, should be called with lock held
- */
-static inline unsigned int sst_assign_pvt_id(struct intel_sst_drv *sst_drv_ctx)
-{
-	sst_drv_ctx->unique_id++;
-	if (sst_drv_ctx->unique_id >= MAX_NUM_STREAMS)
-		sst_drv_ctx->unique_id = 1;
-	return sst_drv_ctx->unique_id;
-}
-
-/*
- * sst_init_stream - this function initialzes stream context
- *
- * @stream : stream struture
- * @codec : codec for stream
- * @sst_id : stream id
- * @ops : stream operation
- * @slot : stream pcm slot
- * @device : device type
- *
- * this inline function initialzes stream context for allocated stream
- */
-static inline void sst_init_stream(struct stream_info *stream,
-		int codec, int sst_id, int ops, u8 slot,
-		enum snd_sst_audio_device_type device)
-{
-	stream->status = STREAM_INIT;
-	stream->prev = STREAM_UN_INIT;
-	stream->codec = codec;
-	stream->sst_id = sst_id;
-	stream->str_type = 0;
-	stream->ops = ops;
-	stream->data_blk.on = false;
-	stream->data_blk.condition = false;
-	stream->data_blk.ret_code = 0;
-	stream->data_blk.data = NULL;
-	stream->ctrl_blk.on = false;
-	stream->ctrl_blk.condition = false;
-	stream->ctrl_blk.ret_code = 0;
-	stream->ctrl_blk.data = NULL;
-	stream->need_draining = false;
-	stream->decode_ibuf = NULL;
-	stream->decode_isize = 0;
-	stream->mmapped = false;
-	stream->pcm_slot = slot;
-	stream->device = device;
-}
-
-
-/*
- * sst_validate_strid - this function validates the stream id
- *
- * @str_id : stream id to be validated
- *
- * returns 0 if valid stream
- */
-static inline int sst_validate_strid(int str_id)
-{
-	if (str_id <= 0 || str_id > sst_drv_ctx->max_streams) {
-		pr_err("SST ERR: invalid stream id : %d MAX_STREAMS:%d\n",
-					str_id, sst_drv_ctx->max_streams);
-		return -EINVAL;
-	} else
-		return 0;
-}
-
-static inline int sst_shim_write(void __iomem *addr, int offset, int value)
-{
-
-	if (sst_drv_ctx->pci_id == SST_MRST_PCI_ID)
-		writel(value, addr + SST_ISRD);	/*dummy*/
-	writel(value, addr + offset);
-	return 0;
-}
-
-static inline int sst_shim_read(void __iomem *addr, int offset)
-{
-	return readl(addr + offset);
-}
-#endif /* __INTEL_SST_COMMON_H__ */
diff --git a/drivers/staging/intel_sst/intel_sst_drv_interface.c b/drivers/staging/intel_sst/intel_sst_drv_interface.c
deleted file mode 100644
index 22bd29c0c439..000000000000
--- a/drivers/staging/intel_sst/intel_sst_drv_interface.c
+++ /dev/null
@@ -1,564 +0,0 @@
-/*
- *  intel_sst_interface.c - Intel SST Driver for audio engine
- *
- *  Copyright (C) 2008-10 Intel Corp
- *  Authors:	Vinod Koul <vinod.koul@intel.com>
- *		Harsha Priya <priya.harsha@intel.com>
- *		Dharageswari R <dharageswari.r@intel.com)
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; version 2 of the License.
- *
- *  This program is distributed in the hope that it will be useful, but
- *  WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *  This driver exposes the audio engine functionalities to the ALSA
- *	and middleware.
- *  Upper layer interfaces (MAD driver, MMF) to SST driver
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/delay.h>
-#include <linux/pci.h>
-#include <linux/fs.h>
-#include <linux/firmware.h>
-#include <linux/pm_runtime.h>
-#include <linux/export.h>
-#include "intel_sst.h"
-#include "intel_sst_ioctl.h"
-#include "intel_sst_fw_ipc.h"
-#include "intel_sst_common.h"
-
-
-/*
- * sst_download_fw - download the audio firmware to DSP
- *
- * This function is called when the FW needs to be downloaded to SST DSP engine
- */
-int sst_download_fw(void)
-{
-	int retval;
-	const struct firmware *fw_sst;
-	char name[20];
-
-	if (sst_drv_ctx->sst_state != SST_UN_INIT)
-		return -EPERM;
-
-	/* Reload firmware is not needed for MRST */
-	if ( (sst_drv_ctx->pci_id == SST_MRST_PCI_ID) && sst_drv_ctx->fw_downloaded) {
-		pr_debug("FW already downloaded, skip for MRST platform\n");
-		sst_drv_ctx->sst_state = SST_FW_RUNNING;
-		return 0;
-	}
-
-	snprintf(name, sizeof(name), "%s%04x%s", "fw_sst_",
-					sst_drv_ctx->pci_id, ".bin");
-
-	pr_debug("Downloading %s FW now...\n", name);
-	retval = request_firmware(&fw_sst, name, &sst_drv_ctx->pci->dev);
-	if (retval) {
-		pr_err("request fw failed %d\n", retval);
-		return retval;
-	}
-	sst_drv_ctx->alloc_block[0].sst_id = FW_DWNL_ID;
-	sst_drv_ctx->alloc_block[0].ops_block.condition = false;
-	retval = sst_load_fw(fw_sst, NULL);
-	if (retval)
-		goto end_restore;
-
-	retval = sst_wait_timeout(sst_drv_ctx, &sst_drv_ctx->alloc_block[0]);
-	if (retval)
-		pr_err("fw download failed %d\n" , retval);
-	else
-		sst_drv_ctx->fw_downloaded = 1;
-
-end_restore:
-	release_firmware(fw_sst);
-	sst_drv_ctx->alloc_block[0].sst_id = BLOCK_UNINIT;
-	return retval;
-}
-
-
-/*
- * sst_stalled - this function checks if the lpe is in stalled state
- */
-int sst_stalled(void)
-{
-	int retry = 1000;
-	int retval = -1;
-
-	while (retry) {
-		if (!sst_drv_ctx->lpe_stalled)
-			return 0;
-		/*wait for time and re-check*/
-		msleep(1);
-
-		retry--;
-	}
-	pr_debug("in Stalled State\n");
-	return retval;
-}
-
-void free_stream_context(unsigned int str_id)
-{
-	struct stream_info *stream;
-
-	if (!sst_validate_strid(str_id)) {
-		/* str_id is valid, so stream is alloacted */
-		stream = &sst_drv_ctx->streams[str_id];
-		if (sst_free_stream(str_id))
-			sst_clean_stream(&sst_drv_ctx->streams[str_id]);
-		if (stream->ops == STREAM_OPS_PLAYBACK ||
-				stream->ops == STREAM_OPS_PLAYBACK_DRM) {
-			sst_drv_ctx->pb_streams--;
-			if (sst_drv_ctx->pci_id == SST_MFLD_PCI_ID)
-				sst_drv_ctx->scard_ops->power_down_pmic_pb(
-						stream->device);
-			else {
-				if (sst_drv_ctx->pb_streams == 0)
-					sst_drv_ctx->scard_ops->
-					power_down_pmic_pb(stream->device);
-			}
-		} else if (stream->ops == STREAM_OPS_CAPTURE) {
-			sst_drv_ctx->cp_streams--;
-			if (sst_drv_ctx->cp_streams == 0)
-				sst_drv_ctx->scard_ops->power_down_pmic_cp(
-						stream->device);
-		}
-		if (sst_drv_ctx->pb_streams == 0
-				&& sst_drv_ctx->cp_streams == 0)
-			sst_drv_ctx->scard_ops->power_down_pmic();
-	}
-}
-
-/*
- * sst_get_stream_allocated - this function gets a stream allocated with
- * the given params
- *
- * @str_param : stream params
- * @lib_dnld : pointer to pointer of lib downlaod struct
- *
- * This creates new stream id for a stream, in case lib is to be downloaded to
- * DSP, it downloads that
- */
-int sst_get_stream_allocated(struct snd_sst_params *str_param,
-		struct snd_sst_lib_download **lib_dnld)
-{
-	int retval, str_id;
-	struct stream_info *str_info;
-
-	retval = sst_alloc_stream((char *) &str_param->sparams, str_param->ops,
-				str_param->codec, str_param->device_type);
-	if (retval < 0) {
-		pr_err("sst_alloc_stream failed %d\n", retval);
-		return retval;
-	}
-	pr_debug("Stream allocated %d\n", retval);
-	str_id = retval;
-	str_info = &sst_drv_ctx->streams[str_id];
-	/* Block the call for reply */
-	retval = sst_wait_interruptible_timeout(sst_drv_ctx,
-			&str_info->ctrl_blk, SST_BLOCK_TIMEOUT);
-	if ((retval != 0) || (str_info->ctrl_blk.ret_code != 0)) {
-		pr_debug("FW alloc failed retval %d, ret_code %d\n",
-				retval, str_info->ctrl_blk.ret_code);
-		str_id = -str_info->ctrl_blk.ret_code; /*return error*/
-		*lib_dnld = str_info->ctrl_blk.data;
-		sst_clean_stream(str_info);
-	} else
-		pr_debug("FW Stream allocated success\n");
-	return str_id; /*will ret either error (in above if) or correct str id*/
-}
-
-/*
- * sst_get_sfreq - this function returns the frequency of the stream
- *
- * @str_param : stream params
- */
-static int sst_get_sfreq(struct snd_sst_params *str_param)
-{
-	switch (str_param->codec) {
-	case SST_CODEC_TYPE_PCM:
-		return 48000; /*str_param->sparams.uc.pcm_params.sfreq;*/
-	case SST_CODEC_TYPE_MP3:
-		return str_param->sparams.uc.mp3_params.sfreq;
-	case SST_CODEC_TYPE_AAC:
-		return str_param->sparams.uc.aac_params.sfreq;
-	case SST_CODEC_TYPE_WMA9:
-		return str_param->sparams.uc.wma_params.sfreq;
-	default:
-		return 0;
-	}
-}
-
-/*
- * sst_get_stream - this function prepares for stream allocation
- *
- * @str_param : stream param
- */
-int sst_get_stream(struct snd_sst_params *str_param)
-{
-	int i, retval;
-	struct stream_info *str_info;
-	struct snd_sst_lib_download *lib_dnld;
-
-	/* stream is not allocated, we are allocating */
-	retval = sst_get_stream_allocated(str_param, &lib_dnld);
-	if (retval == -(SST_LIB_ERR_LIB_DNLD_REQUIRED)) {
-		/* codec download is required */
-		struct snd_sst_alloc_response *response;
-
-		pr_debug("Codec is required.... trying that\n");
-		if (lib_dnld == NULL) {
-			pr_err("lib download null!!! abort\n");
-			return -EIO;
-		}
-		i = sst_get_block_stream(sst_drv_ctx);
-		response = sst_drv_ctx->alloc_block[i].ops_block.data;
-		pr_debug("alloc block allocated = %d\n", i);
-		if (i < 0) {
-			kfree(lib_dnld);
-			return -ENOMEM;
-		}
-		retval = sst_load_library(lib_dnld, str_param->ops);
-		kfree(lib_dnld);
-
-		sst_drv_ctx->alloc_block[i].sst_id = BLOCK_UNINIT;
-		if (!retval) {
-			pr_debug("codec was downloaded successfully\n");
-
-			retval = sst_get_stream_allocated(str_param, &lib_dnld);
-			if (retval <= 0)
-				goto err;
-
-			pr_debug("Alloc done stream id %d\n", retval);
-		} else {
-			pr_debug("codec download failed\n");
-			retval = -EIO;
-			goto err;
-		}
-	} else if  (retval <= 0)
-		goto err;
-	/*else
-		set_port_params(str_param, str_param->ops);*/
-
-	/* store sampling freq */
-	str_info = &sst_drv_ctx->streams[retval];
-	str_info->sfreq = sst_get_sfreq(str_param);
-
-	/* power on the analog, if reqd */
-	if (str_param->ops == STREAM_OPS_PLAYBACK ||
-			str_param->ops == STREAM_OPS_PLAYBACK_DRM) {
-		if (sst_drv_ctx->pci_id == SST_MRST_PCI_ID)
-			sst_drv_ctx->scard_ops->power_up_pmic_pb(
-					sst_drv_ctx->pmic_port_instance);
-		else
-			sst_drv_ctx->scard_ops->power_up_pmic_pb(
-							str_info->device);
-		/*Only if the playback is MP3 - Send a message*/
-		sst_drv_ctx->pb_streams++;
-	} else if (str_param->ops == STREAM_OPS_CAPTURE) {
-
-		sst_drv_ctx->scard_ops->power_up_pmic_cp(
-				sst_drv_ctx->pmic_port_instance);
-		/*Send a messageif not sent already*/
-		sst_drv_ctx->cp_streams++;
-	}
-
-err:
-	return retval;
-}
-
-void sst_process_mad_ops(struct work_struct *work)
-{
-
-	struct mad_ops_wq *mad_ops =
-			container_of(work, struct mad_ops_wq, wq);
-	int retval = 0;
-
-	switch (mad_ops->control_op) {
-	case SST_SND_PAUSE:
-		retval = sst_pause_stream(mad_ops->stream_id);
-		break;
-	case SST_SND_RESUME:
-		retval = sst_resume_stream(mad_ops->stream_id);
-		break;
-	case SST_SND_DROP:
-		retval = sst_drop_stream(mad_ops->stream_id);
-		break;
-	case SST_SND_START:
-			pr_debug("SST Debug: start stream\n");
-		retval = sst_start_stream(mad_ops->stream_id);
-		break;
-	case SST_SND_STREAM_PROCESS:
-		pr_debug("play/capt frames...\n");
-		break;
-	default:
-		pr_err(" wrong control_ops reported\n");
-	}
-	return;
-}
-
-void send_intial_rx_timeslot(void)
-{
-	if (sst_drv_ctx->pci_id == SST_MRST_PCI_ID &&
-			sst_drv_ctx->rx_time_slot_status != RX_TIMESLOT_UNINIT
-			&& sst_drv_ctx->pmic_vendor != SND_NC)
-		sst_enable_rx_timeslot(sst_drv_ctx->rx_time_slot_status);
-}
-
-/*
- * sst_open_pcm_stream - Open PCM interface
- *
- * @str_param: parameters of pcm stream
- *
- * This function is called by MID sound card driver to open
- * a new pcm interface
- */
-int sst_open_pcm_stream(struct snd_sst_params *str_param)
-{
-	struct stream_info *str_info;
-	int retval;
-
-	pm_runtime_get_sync(&sst_drv_ctx->pci->dev);
-
-	if (sst_drv_ctx->sst_state == SST_SUSPENDED) {
-		/* LPE is suspended, resume it before proceeding*/
-		pr_debug("Resuming from Suspended state\n");
-		retval = intel_sst_resume(sst_drv_ctx->pci);
-		if (retval) {
-			pr_err("Resume Failed = %#x, abort\n", retval);
-			pm_runtime_put(&sst_drv_ctx->pci->dev);
-			return retval;
-		}
-	}
-	if (sst_drv_ctx->sst_state == SST_UN_INIT) {
-		/* FW is not downloaded */
-		pr_debug("DSP Downloading FW now...\n");
-		retval = sst_download_fw();
-		if (retval) {
-			pr_err("FW download fail %x, abort\n", retval);
-			pm_runtime_put(&sst_drv_ctx->pci->dev);
-			return retval;
-		}
-		send_intial_rx_timeslot();
-	}
-
-	if (!str_param) {
-		pm_runtime_put(&sst_drv_ctx->pci->dev);
-		return -EINVAL;
-	}
-
-	retval = sst_get_stream(str_param);
-	if (retval > 0) {
-		sst_drv_ctx->stream_cnt++;
-		str_info = &sst_drv_ctx->streams[retval];
-		str_info->src = MAD_DRV;
-	} else
-		pm_runtime_put(&sst_drv_ctx->pci->dev);
-
-	return retval;
-}
-
-/*
- * sst_close_pcm_stream - Close PCM interface
- *
- * @str_id: stream id to be closed
- *
- * This function is called by MID sound card driver to close
- * an existing pcm interface
- */
-int sst_close_pcm_stream(unsigned int str_id)
-{
-	struct stream_info *stream;
-
-	pr_debug("sst: stream free called\n");
-	if (sst_validate_strid(str_id))
-		return -EINVAL;
-	stream = &sst_drv_ctx->streams[str_id];
-	free_stream_context(str_id);
-	stream->pcm_substream = NULL;
-	stream->status = STREAM_UN_INIT;
-	stream->period_elapsed = NULL;
-	sst_drv_ctx->stream_cnt--;
-	pr_debug("sst: will call runtime put now\n");
-	pm_runtime_put(&sst_drv_ctx->pci->dev);
-	return 0;
-}
-
-/*
- * sst_device_control - Set Control params
- *
- * @cmd: control cmd to be set
- * @arg: command argument
- *
- * This function is called by MID sound card driver to set
- * SST/Sound card controls for an opened stream.
- * This is registered with MID driver
- */
-int sst_device_control(int cmd, void *arg)
-{
-	int retval = 0, str_id = 0;
-
-	switch (cmd) {
-	case SST_SND_PAUSE:
-	case SST_SND_RESUME:
-	case SST_SND_DROP:
-	case SST_SND_START:
-		sst_drv_ctx->mad_ops.control_op = cmd;
-		sst_drv_ctx->mad_ops.stream_id = *(int *)arg;
-		queue_work(sst_drv_ctx->mad_wq, &sst_drv_ctx->mad_ops.wq);
-		break;
-
-	case SST_SND_STREAM_INIT: {
-		struct pcm_stream_info *str_info;
-		struct stream_info *stream;
-
-		pr_debug("stream init called\n");
-		str_info = (struct pcm_stream_info *)arg;
-		str_id = str_info->str_id;
-		retval = sst_validate_strid(str_id);
-		if (retval)
-			break;
-
-		stream = &sst_drv_ctx->streams[str_id];
-		pr_debug("setting the period ptrs\n");
-		stream->pcm_substream = str_info->mad_substream;
-		stream->period_elapsed = str_info->period_elapsed;
-		stream->sfreq = str_info->sfreq;
-		stream->prev = stream->status;
-		stream->status = STREAM_INIT;
-		break;
-	}
-
-	case SST_SND_BUFFER_POINTER: {
-		struct pcm_stream_info *stream_info;
-		struct snd_sst_tstamp fw_tstamp = {0,};
-		struct stream_info *stream;
-
-
-		stream_info = (struct pcm_stream_info *)arg;
-		str_id = stream_info->str_id;
-		retval = sst_validate_strid(str_id);
-		if (retval)
-			break;
-		stream = &sst_drv_ctx->streams[str_id];
-
-		if (!stream->pcm_substream)
-			break;
-		memcpy_fromio(&fw_tstamp,
-			((void *)(sst_drv_ctx->mailbox + SST_TIME_STAMP)
-			+(str_id * sizeof(fw_tstamp))),
-			sizeof(fw_tstamp));
-
-		pr_debug("Pointer Query on strid = %d ops %d\n",
-						str_id, stream->ops);
-
-		if (stream->ops == STREAM_OPS_PLAYBACK)
-			stream_info->buffer_ptr = fw_tstamp.samples_rendered;
-		else
-			stream_info->buffer_ptr = fw_tstamp.samples_processed;
-		pr_debug("Samples rendered = %llu, buffer ptr %llu\n",
-			fw_tstamp.samples_rendered, stream_info->buffer_ptr);
-		break;
-	}
-	case SST_ENABLE_RX_TIME_SLOT: {
-		int status = *(int *)arg;
-		sst_drv_ctx->rx_time_slot_status = status ;
-		sst_enable_rx_timeslot(status);
-		break;
-	}
-	default:
-		/* Illegal case */
-		pr_warn("illegal req\n");
-		return -EINVAL;
-	}
-
-	return retval;
-}
-
-
-struct intel_sst_pcm_control pcm_ops = {
-	.open = sst_open_pcm_stream,
-	.device_control = sst_device_control,
-	.close = sst_close_pcm_stream,
-};
-
-struct intel_sst_card_ops sst_pmic_ops = {
-	.pcm_control = &pcm_ops,
-};
-
-/*
- * register_sst_card - function for sound card to register
- *
- * @card: pointer to structure of operations
- *
- * This function is called card driver loads and is ready for registration
- */
-int register_sst_card(struct intel_sst_card_ops *card)
-{
-	if (!sst_drv_ctx) {
-		pr_err("No SST driver register card reject\n");
-		return -ENODEV;
-	}
-
-	if (!card || !card->module_name) {
-		pr_err("Null Pointer Passed\n");
-		return -EINVAL;
-	}
-	if (sst_drv_ctx->pmic_state == SND_MAD_UN_INIT) {
-		/* register this driver */
-		if ((strncmp(SST_CARD_NAMES, card->module_name,
-				strlen(SST_CARD_NAMES))) == 0) {
-			sst_drv_ctx->pmic_vendor = card->vendor_id;
-			sst_drv_ctx->scard_ops =  card->scard_ops;
-			sst_pmic_ops.module_name = card->module_name;
-			sst_drv_ctx->pmic_state = SND_MAD_INIT_DONE;
-			sst_drv_ctx->rx_time_slot_status = 0; /*default AMIC*/
-			card->pcm_control = sst_pmic_ops.pcm_control;
-			return 0;
-		} else {
-			pr_err("strcmp fail %s\n", card->module_name);
-			return -EINVAL;
-		}
-
-	} else {
-		/* already registered a driver */
-		pr_err("Repeat for registration..denied\n");
-		return -EBADRQC;
-	}
-	/* The ASoC code doesn't set scard_ops */
-	if (sst_drv_ctx->scard_ops)
-		sst_drv_ctx->scard_ops->card_status = SND_CARD_UN_INIT;
-	return 0;
-}
-EXPORT_SYMBOL_GPL(register_sst_card);
-
-/*
- * unregister_sst_card- function for sound card to un-register
- *
- * @card: pointer to structure of operations
- *
- * This function is called when card driver unloads
- */
-void unregister_sst_card(struct intel_sst_card_ops *card)
-{
-	if (sst_pmic_ops.pcm_control == card->pcm_control) {
-		/* unreg */
-		sst_pmic_ops.module_name = "";
-		sst_drv_ctx->pmic_state = SND_MAD_UN_INIT;
-		pr_debug("Unregistered %s\n", card->module_name);
-	}
-	return;
-}
-EXPORT_SYMBOL_GPL(unregister_sst_card);
diff --git a/drivers/staging/intel_sst/intel_sst_dsp.c b/drivers/staging/intel_sst/intel_sst_dsp.c
deleted file mode 100644
index 426d2b92073a..000000000000
--- a/drivers/staging/intel_sst/intel_sst_dsp.c
+++ /dev/null
@@ -1,496 +0,0 @@
-/*
- *  intel_sst_dsp.c - Intel SST Driver for audio engine
- *
- *  Copyright (C) 2008-10	Intel Corp
- *  Authors:	Vinod Koul <vinod.koul@intel.com>
- *		Harsha Priya <priya.harsha@intel.com>
- *		Dharageswari R <dharageswari.r@intel.com>
- *		KP Jeeja <jeeja.kp@intel.com>
- *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; version 2 of the License.
- *
- *  This program is distributed in the hope that it will be useful, but
- *  WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This driver exposes the audio engine functionalities to the ALSA
- *	and middleware.
- *
- *  This file contains all dsp controlling functions like firmware download,
- * setting/resetting dsp cores, etc
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/pci.h>
-#include <linux/fs.h>
-#include <linux/firmware.h>
-#include "intel_sst.h"
-#include "intel_sst_ioctl.h"
-#include "intel_sst_fw_ipc.h"
-#include "intel_sst_common.h"
-
-
-/**
- * intel_sst_reset_dsp_mrst - Resetting SST DSP
- *
- * This resets DSP in case of MRST platfroms
- */
-static int intel_sst_reset_dsp_mrst(void)
-{
-	union config_status_reg csr;
-
-	pr_debug("Resetting the DSP in mrst\n");
-	csr.full = sst_shim_read(sst_drv_ctx->shim, SST_CSR);
-	csr.full |= 0x382;
-	sst_shim_write(sst_drv_ctx->shim, SST_CSR, csr.full);
-	csr.full = sst_shim_read(sst_drv_ctx->shim, SST_CSR);
-	csr.part.strb_cntr_rst = 0;
-	csr.part.run_stall = 0x1;
-	csr.part.bypass = 0x7;
-	csr.part.sst_reset = 0x1;
-	sst_shim_write(sst_drv_ctx->shim, SST_CSR, csr.full);
-	return 0;
-}
-
-/**
- * intel_sst_reset_dsp_medfield - Resetting SST DSP
- *
- * This resets DSP in case of Medfield platfroms
- */
-static int intel_sst_reset_dsp_medfield(void)
-{
-	union config_status_reg csr;
-
-	pr_debug("Resetting the DSP in medfield\n");
-	csr.full = sst_shim_read(sst_drv_ctx->shim, SST_CSR);
-	csr.full |= 0x382;
-	sst_shim_write(sst_drv_ctx->shim, SST_CSR, csr.full);
-
-	return 0;
-}
-
-/**
- * sst_start_mrst - Start the SST DSP processor
- *
- * This starts the DSP in MRST platfroms
- */
-static int sst_start_mrst(void)
-{
-	union config_status_reg csr;
-
-	csr.full = sst_shim_read(sst_drv_ctx->shim, SST_CSR);
-	csr.part.bypass = 0;
-	sst_shim_write(sst_drv_ctx->shim, SST_CSR, csr.full);
-	csr.part.run_stall = 0;
-	csr.part.sst_reset = 0;
-	csr.part.strb_cntr_rst = 1;
-	pr_debug("Setting SST to execute_mrst 0x%x\n", csr.full);
-	sst_shim_write(sst_drv_ctx->shim, SST_CSR, csr.full);
-
-	return 0;
-}
-
-/**
- * sst_start_medfield - Start the SST DSP processor
- *
- * This starts the DSP in Medfield platfroms
- */
-static int sst_start_medfield(void)
-{
-	union config_status_reg csr;
-
-	csr.full = sst_shim_read(sst_drv_ctx->shim, SST_CSR);
-	csr.part.bypass = 0;
-	sst_shim_write(sst_drv_ctx->shim, SST_CSR, csr.full);
-	csr.full = sst_shim_read(sst_drv_ctx->shim, SST_CSR);
-	csr.part.mfld_strb = 1;
-	sst_shim_write(sst_drv_ctx->shim, SST_CSR, csr.full);
-	csr.full = sst_shim_read(sst_drv_ctx->shim, SST_CSR);
-	csr.part.run_stall = 0;
-	csr.part.sst_reset = 0;
-	pr_debug("Starting the DSP_medfld %x\n", csr.full);
-	sst_shim_write(sst_drv_ctx->shim, SST_CSR, csr.full);
-	pr_debug("Starting the DSP_medfld\n");
-
-	return 0;
-}
-
-/**
- * sst_parse_module - Parse audio FW modules
- *
- * @module: FW module header
- *
- * Parses modules that need to be placed in SST IRAM and DRAM
- * returns error or 0 if module sizes are proper
- */
-static int sst_parse_module(struct fw_module_header *module)
-{
-	struct dma_block_info *block;
-	u32 count;
-	void __iomem *ram;
-
-	pr_debug("module sign %s size %x blocks %x type %x\n",
-			module->signature, module->mod_size,
-			module->blocks, module->type);
-	pr_debug("module entrypoint 0x%x\n", module->entry_point);
-
-	block = (void *)module + sizeof(*module);
-
-	for (count = 0; count < module->blocks; count++) {
-		if (block->size <= 0) {
-			pr_err("block size invalid\n");
-			return -EINVAL;
-		}
-		switch (block->type) {
-		case SST_IRAM:
-			ram = sst_drv_ctx->iram;
-			break;
-		case SST_DRAM:
-			ram = sst_drv_ctx->dram;
-			break;
-		default:
-			pr_err("wrong ram type0x%x in block0x%x\n",
-					block->type, count);
-			return -EINVAL;
-		}
-		memcpy_toio(ram + block->ram_offset,
-				(void *)block + sizeof(*block), block->size);
-		block = (void *)block + sizeof(*block) + block->size;
-	}
-	return 0;
-}
-
-/**
- * sst_parse_fw_image - parse and load FW
- *
- * @sst_fw: pointer to audio fw
- *
- * This function is called to parse and download the FW image
- */
-static int sst_parse_fw_image(const struct firmware *sst_fw)
-{
-	struct fw_header *header;
-	u32 count;
-	int ret_val;
-	struct fw_module_header *module;
-
-	BUG_ON(!sst_fw);
-
-	/* Read the header information from the data pointer */
-	header = (struct fw_header *)sst_fw->data;
-
-	/* verify FW */
-	if ((strncmp(header->signature, SST_FW_SIGN, 4) != 0) ||
-			(sst_fw->size != header->file_size + sizeof(*header))) {
-		/* Invalid FW signature */
-		pr_err("Invalid FW sign/filesize mismatch\n");
-		return -EINVAL;
-	}
-	pr_debug("header sign=%s size=%x modules=%x fmt=%x size=%x\n",
-			header->signature, header->file_size, header->modules,
-			header->file_format, sizeof(*header));
-	module = (void *)sst_fw->data + sizeof(*header);
-	for (count = 0; count < header->modules; count++) {
-		/* module */
-		ret_val = sst_parse_module(module);
-		if (ret_val)
-			return ret_val;
-		module = (void *)module + sizeof(*module) + module->mod_size ;
-	}
-
-	return 0;
-}
-
-/**
- * sst_load_fw - function to load FW into DSP
- *
- * @fw: Pointer to driver loaded FW
- * @context: driver context
- *
- * This function is called by OS when the FW is loaded into kernel
- */
-int sst_load_fw(const struct firmware *fw, void *context)
-{
-	int ret_val;
-
-	pr_debug("load_fw called\n");
-	BUG_ON(!fw);
-
-	if (sst_drv_ctx->pci_id == SST_MRST_PCI_ID)
-		ret_val = intel_sst_reset_dsp_mrst();
-	else if (sst_drv_ctx->pci_id == SST_MFLD_PCI_ID)
-		ret_val = intel_sst_reset_dsp_medfield();
-	if (ret_val)
-		return ret_val;
-
-	ret_val = sst_parse_fw_image(fw);
-	if (ret_val)
-		return ret_val;
-	mutex_lock(&sst_drv_ctx->sst_lock);
-	sst_drv_ctx->sst_state = SST_FW_LOADED;
-	mutex_unlock(&sst_drv_ctx->sst_lock);
-	/*  7. ask scu to reset the bypass bits */
-	/*  8.bring sst out of reset  */
-	if (sst_drv_ctx->pci_id == SST_MRST_PCI_ID)
-		ret_val = sst_start_mrst();
-	else if (sst_drv_ctx->pci_id == SST_MFLD_PCI_ID)
-		ret_val = sst_start_medfield();
-	if (ret_val)
-		return ret_val;
-
-	pr_debug("fw loaded successful!!!\n");
-	return ret_val;
-}
-
-/*This function is called when any codec/post processing library
- needs to be downloaded*/
-static int sst_download_library(const struct firmware *fw_lib,
-				struct snd_sst_lib_download_info *lib)
-{
-	/* send IPC message and wait */
-	int i;
-	u8 pvt_id;
-	struct ipc_post *msg = NULL;
-	union config_status_reg csr;
-	struct snd_sst_str_type str_type = {0};
-	int retval = 0;
-
-	if (sst_create_large_msg(&msg))
-		return -ENOMEM;
-
-	pvt_id = sst_assign_pvt_id(sst_drv_ctx);
-	i = sst_get_block_stream(sst_drv_ctx);
-	pr_debug("alloc block allocated = %d, pvt_id %d\n", i, pvt_id);
-	if (i < 0) {
-		kfree(msg);
-		return -ENOMEM;
-	}
-	sst_drv_ctx->alloc_block[i].sst_id = pvt_id;
-	sst_fill_header(&msg->header, IPC_IA_PREP_LIB_DNLD, 1, pvt_id);
-	msg->header.part.data = sizeof(u32) + sizeof(str_type);
-	str_type.codec_type = lib->dload_lib.lib_info.lib_type;
-	/*str_type.pvt_id = pvt_id;*/
-	memcpy(msg->mailbox_data, &msg->header, sizeof(u32));
-	memcpy(msg->mailbox_data + sizeof(u32), &str_type, sizeof(str_type));
-	spin_lock(&sst_drv_ctx->list_spin_lock);
-	list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list);
-	spin_unlock(&sst_drv_ctx->list_spin_lock);
-	sst_post_message(&sst_drv_ctx->ipc_post_msg_wq);
-	retval = sst_wait_timeout(sst_drv_ctx, &sst_drv_ctx->alloc_block[i]);
-	if (retval) {
-		/* error */
-		sst_drv_ctx->alloc_block[i].sst_id = BLOCK_UNINIT;
-		pr_err("Prep codec downloaded failed %d\n",
-				retval);
-		return -EIO;
-	}
-	pr_debug("FW responded, ready for download now...\n");
-	/* downloading on success */
-	mutex_lock(&sst_drv_ctx->sst_lock);
-	sst_drv_ctx->sst_state = SST_FW_LOADED;
-	mutex_unlock(&sst_drv_ctx->sst_lock);
-	csr.full = readl(sst_drv_ctx->shim + SST_CSR);
-	csr.part.run_stall = 1;
-	sst_shim_write(sst_drv_ctx->shim, SST_CSR, csr.full);
-
-	csr.full = sst_shim_read(sst_drv_ctx->shim, SST_CSR);
-	csr.part.bypass = 0x7;
-	sst_shim_write(sst_drv_ctx->shim, SST_CSR, csr.full);
-
-	sst_parse_fw_image(fw_lib);
-
-	/* set the FW to running again */
-	csr.full = sst_shim_read(sst_drv_ctx->shim, SST_CSR);
-	csr.part.bypass = 0x0;
-	sst_shim_write(sst_drv_ctx->shim, SST_CSR, csr.full);
-
-	csr.full = sst_shim_read(sst_drv_ctx->shim, SST_CSR);
-	csr.part.run_stall = 0;
-	sst_shim_write(sst_drv_ctx->shim, SST_CSR, csr.full);
-
-	/* send download complete and wait */
-	if (sst_create_large_msg(&msg)) {
-		sst_drv_ctx->alloc_block[i].sst_id = BLOCK_UNINIT;
-		return -ENOMEM;
-	}
-
-	sst_fill_header(&msg->header, IPC_IA_LIB_DNLD_CMPLT, 1, pvt_id);
-	sst_drv_ctx->alloc_block[i].sst_id = pvt_id;
-	msg->header.part.data = sizeof(u32) + sizeof(*lib);
-	lib->pvt_id = pvt_id;
-	memcpy(msg->mailbox_data, &msg->header, sizeof(u32));
-	memcpy(msg->mailbox_data + sizeof(u32), lib, sizeof(*lib));
-	spin_lock(&sst_drv_ctx->list_spin_lock);
-	list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list);
-	spin_unlock(&sst_drv_ctx->list_spin_lock);
-	sst_post_message(&sst_drv_ctx->ipc_post_msg_wq);
-	pr_debug("Waiting for FW response Download complete\n");
-	sst_drv_ctx->alloc_block[i].ops_block.condition = false;
-	retval = sst_wait_timeout(sst_drv_ctx, &sst_drv_ctx->alloc_block[i]);
-	if (retval) {
-		/* error */
-		mutex_lock(&sst_drv_ctx->sst_lock);
-		sst_drv_ctx->sst_state = SST_UN_INIT;
-		mutex_unlock(&sst_drv_ctx->sst_lock);
-		sst_drv_ctx->alloc_block[i].sst_id = BLOCK_UNINIT;
-		return -EIO;
-	}
-
-	pr_debug("FW success on Download complete\n");
-	sst_drv_ctx->alloc_block[i].sst_id = BLOCK_UNINIT;
-	mutex_lock(&sst_drv_ctx->sst_lock);
-	sst_drv_ctx->sst_state = SST_FW_RUNNING;
-	mutex_unlock(&sst_drv_ctx->sst_lock);
-	return 0;
-
-}
-
-/* This function is called before downloading the codec/postprocessing
-library is set for download to SST DSP*/
-static int sst_validate_library(const struct firmware *fw_lib,
-		struct lib_slot_info *slot,
-		u32 *entry_point)
-{
-	struct fw_header *header;
-	struct fw_module_header *module;
-	struct dma_block_info *block;
-	unsigned int n_blk, isize = 0, dsize = 0;
-	int err = 0;
-
-	header = (struct fw_header *)fw_lib->data;
-	if (header->modules != 1) {
-		pr_err("Module no mismatch found\n");
-		err = -EINVAL;
-		goto exit;
-	}
-	module = (void *)fw_lib->data + sizeof(*header);
-	*entry_point = module->entry_point;
-	pr_debug("Module entry point 0x%x\n", *entry_point);
-	pr_debug("Module Sign %s, Size 0x%x, Blocks 0x%x Type 0x%x\n",
-			module->signature, module->mod_size,
-			module->blocks, module->type);
-
-	block = (void *)module + sizeof(*module);
-	for (n_blk = 0; n_blk < module->blocks; n_blk++) {
-		switch (block->type) {
-		case SST_IRAM:
-			isize += block->size;
-			break;
-		case SST_DRAM:
-			dsize += block->size;
-			break;
-		default:
-			pr_err("Invalid block type for 0x%x\n", n_blk);
-			err = -EINVAL;
-			goto exit;
-		}
-		block = (void *)block + sizeof(*block) + block->size;
-	}
-	if (isize > slot->iram_size || dsize > slot->dram_size) {
-		pr_err("library exceeds size allocated\n");
-		err = -EINVAL;
-		goto exit;
-	} else
-		pr_debug("Library is safe for download...\n");
-
-	pr_debug("iram 0x%x, dram 0x%x, iram 0x%x, dram 0x%x\n",
-			isize, dsize, slot->iram_size, slot->dram_size);
-exit:
-	return err;
-
-}
-
-/* This function is called when FW requests for a particular library download
-This function prepares the library to download*/
-int sst_load_library(struct snd_sst_lib_download *lib, u8 ops)
-{
-	char buf[20];
-	const char *type, *dir;
-	int len = 0, error = 0;
-	u32 entry_point;
-	const struct firmware *fw_lib;
-	struct snd_sst_lib_download_info dload_info = {{{0},},};
-
-	memset(buf, 0, sizeof(buf));
-
-	pr_debug("Lib Type 0x%x, Slot 0x%x, ops 0x%x\n",
-			lib->lib_info.lib_type, lib->slot_info.slot_num, ops);
-	pr_debug("Version 0x%x, name %s, caps 0x%x media type 0x%x\n",
-		lib->lib_info.lib_version, lib->lib_info.lib_name,
-		lib->lib_info.lib_caps, lib->lib_info.media_type);
-
-	pr_debug("IRAM Size 0x%x, offset 0x%x\n",
-		lib->slot_info.iram_size, lib->slot_info.iram_offset);
-	pr_debug("DRAM Size 0x%x, offset 0x%x\n",
-		lib->slot_info.dram_size, lib->slot_info.dram_offset);
-
-	switch (lib->lib_info.lib_type) {
-	case SST_CODEC_TYPE_MP3:
-		type = "mp3_";
-		break;
-	case SST_CODEC_TYPE_AAC:
-		type = "aac_";
-		break;
-	case SST_CODEC_TYPE_AACP:
-		type = "aac_v1_";
-		break;
-	case SST_CODEC_TYPE_eAACP:
-		type = "aac_v2_";
-		break;
-	case SST_CODEC_TYPE_WMA9:
-		type = "wma9_";
-		break;
-	default:
-		pr_err("Invalid codec type\n");
-		error = -EINVAL;
-		goto wake;
-	}
-
-	if (ops == STREAM_OPS_CAPTURE)
-		dir = "enc_";
-	else
-		dir = "dec_";
-	len = strlen(type) + strlen(dir);
-	strncpy(buf, type, sizeof(buf)-1);
-	strncpy(buf + strlen(type), dir, sizeof(buf)-strlen(type)-1);
-	len += snprintf(buf + len, sizeof(buf) - len, "%d",
-			lib->slot_info.slot_num);
-	len += snprintf(buf + len, sizeof(buf) - len, ".bin");
-
-	pr_debug("Requesting %s\n", buf);
-
-	error = request_firmware(&fw_lib, buf, &sst_drv_ctx->pci->dev);
-	if (error) {
-		pr_err("library load failed %d\n", error);
-		goto wake;
-	}
-	error = sst_validate_library(fw_lib, &lib->slot_info, &entry_point);
-	if (error)
-		goto wake_free;
-
-	lib->mod_entry_pt = entry_point;
-	memcpy(&dload_info.dload_lib, lib, sizeof(*lib));
-	error = sst_download_library(fw_lib, &dload_info);
-	if (error)
-		goto wake_free;
-
-	/* lib is downloaded and init send alloc again */
-	pr_debug("Library is downloaded now...\n");
-wake_free:
-	/* sst_wake_up_alloc_block(sst_drv_ctx, pvt_id, error, NULL); */
-	release_firmware(fw_lib);
-wake:
-	return error;
-}
-
diff --git a/drivers/staging/intel_sst/intel_sst_fw_ipc.h b/drivers/staging/intel_sst/intel_sst_fw_ipc.h
deleted file mode 100644
index 5d0cc56aaef9..000000000000
--- a/drivers/staging/intel_sst/intel_sst_fw_ipc.h
+++ /dev/null
@@ -1,416 +0,0 @@
-#ifndef __INTEL_SST_FW_IPC_H__
-#define __INTEL_SST_FW_IPC_H__
-/*
-*  intel_sst_fw_ipc.h - Intel SST Driver for audio engine
-*
-*  Copyright (C) 2008-10 Intel Corporation
-*  Author:	Vinod Koul <vinod.koul@intel.com>
-*		Harsha Priya <priya.harsha@intel.com>
-*		Dharageswari R <dharageswari.r@intel.com>
-*		KP Jeeja <jeeja.kp@intel.com>
-*  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-*
-*  This program is free software; you can redistribute it and/or modify
-*  it under the terms of the GNU General Public License as published by
-*  the Free Software Foundation; version 2 of the License.
-*
-*  This program is distributed in the hope that it will be useful, but
-*  WITHOUT ANY WARRANTY; without even the implied warranty of
-*  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
-*  General Public License for more details.
-*
-*  You should have received a copy of the GNU General Public License along
-*  with this program; if not, write to the Free Software Foundation, Inc.,
-*  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
-*
-* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-*
-*  This driver exposes the audio engine functionalities to the ALSA
-*	and middleware.
-*  This file has definitions shared between the firmware and driver
-*/
-
-#define MAX_NUM_STREAMS_MRST 3
-#define MAX_NUM_STREAMS_MFLD 6
-#define MAX_NUM_STREAMS 6
-#define MAX_DBG_RW_BYTES 80
-#define MAX_NUM_SCATTER_BUFFERS 8
-#define MAX_LOOP_BACK_DWORDS 8
-/* IPC base address and mailbox, timestamp offsets */
-#define SST_MAILBOX_SIZE 0x0400
-#define SST_MAILBOX_SEND 0x0000
-#define SST_MAILBOX_RCV 0x0804
-#define SST_TIME_STAMP 0x1800
-#define SST_RESERVED_OFFSET 0x1A00
-#define SST_CHEKPOINT_OFFSET 0x1C00
-#define REPLY_MSG 0x80
-
-/* Message ID's for IPC messages */
-/* Bits B7: SST or IA/SC ; B6-B4: Msg Category; B3-B0: Msg Type */
-
-/* I2L Firmware/Codec Download msgs */
-#define IPC_IA_PREP_LIB_DNLD 0x01
-#define IPC_IA_LIB_DNLD_CMPLT 0x02
-
-#define IPC_IA_SET_PMIC_TYPE 0x03
-#define IPC_IA_GET_FW_VERSION 0x04
-#define IPC_IA_GET_FW_BUILD_INF 0x05
-#define IPC_IA_GET_FW_INFO 0x06
-#define IPC_IA_GET_FW_CTXT 0x07
-#define IPC_IA_SET_FW_CTXT 0x08
-
-/* I2L Codec Config/control msgs */
-#define IPC_IA_SET_CODEC_PARAMS 0x10
-#define IPC_IA_GET_CODEC_PARAMS 0x11
-#define IPC_IA_SET_PPP_PARAMS 0x12
-#define IPC_IA_GET_PPP_PARAMS 0x13
-#define IPC_IA_PLAY_FRAMES 0x14
-#define IPC_IA_CAPT_FRAMES 0x15
-#define IPC_IA_PLAY_VOICE 0x16
-#define IPC_IA_CAPT_VOICE 0x17
-#define IPC_IA_DECODE_FRAMES 0x18
-
-#define IPC_IA_ALG_PARAMS 0x1A
-#define IPC_IA_TUNING_PARAMS 0x1B
-
-/* I2L Stream config/control msgs */
-#define IPC_IA_ALLOC_STREAM 0x20 /* Allocate a stream ID */
-#define IPC_IA_FREE_STREAM 0x21 /* Free the stream ID */
-#define IPC_IA_SET_STREAM_PARAMS 0x22
-#define IPC_IA_GET_STREAM_PARAMS 0x23
-#define IPC_IA_PAUSE_STREAM 0x24
-#define IPC_IA_RESUME_STREAM 0x25
-#define IPC_IA_DROP_STREAM 0x26
-#define IPC_IA_DRAIN_STREAM 0x27 /* Short msg with str_id */
-#define IPC_IA_TARGET_DEV_SELECT 0x28
-#define IPC_IA_CONTROL_ROUTING 0x29
-
-#define IPC_IA_SET_STREAM_VOL 0x2A /*Vol for stream, pre mixer */
-#define IPC_IA_GET_STREAM_VOL 0x2B
-#define IPC_IA_SET_STREAM_MUTE 0x2C
-#define IPC_IA_GET_STREAM_MUTE 0x2D
-#define IPC_IA_ENABLE_RX_TIME_SLOT 0x2E /* Enable Rx time slot 0 or 1 */
-
-#define IPC_IA_START_STREAM 0x30 /* Short msg with str_id */
-
-/* Debug msgs */
-#define IPC_IA_DBG_MEM_READ 0x40
-#define IPC_IA_DBG_MEM_WRITE 0x41
-#define IPC_IA_DBG_LOOP_BACK 0x42
-
-/* L2I Firmware/Codec Download msgs */
-#define IPC_IA_FW_INIT_CMPLT 0x81
-#define IPC_IA_LPE_GETTING_STALLED 0x82
-#define IPC_IA_LPE_UNSTALLED 0x83
-
-/* L2I Codec Config/control msgs */
-#define IPC_SST_GET_PLAY_FRAMES 0x90 /* Request IA more data */
-#define IPC_SST_GET_CAPT_FRAMES 0x91 /* Request IA more data */
-#define IPC_SST_BUF_UNDER_RUN 0x92 /* PB Under run and stopped */
-#define IPC_SST_BUF_OVER_RUN 0x93 /* CAP Under run and stopped */
-#define IPC_SST_DRAIN_END 0x94 /* PB Drain complete and stopped */
-#define IPC_SST_CHNGE_SSP_PARAMS 0x95 /* PB SSP parameters changed */
-#define IPC_SST_STREAM_PROCESS_FATAL_ERR 0x96/* error in processing a stream */
-#define IPC_SST_PERIOD_ELAPSED 0x97 /* period elapsed */
-#define IPC_IA_TARGET_DEV_CHNGD 0x98 /* error in processing a stream */
-
-#define IPC_SST_ERROR_EVENT 0x99 /* Buffer over run occurred */
-/* L2S messages */
-#define IPC_SC_DDR_LINK_UP 0xC0
-#define IPC_SC_DDR_LINK_DOWN 0xC1
-#define IPC_SC_SET_LPECLK_REQ 0xC2
-#define IPC_SC_SSP_BIT_BANG 0xC3
-
-/* L2I Error reporting msgs */
-#define IPC_IA_MEM_ALLOC_FAIL 0xE0
-#define IPC_IA_PROC_ERR 0xE1 /* error in processing a
-					stream can be used by playback and
-					capture modules */
-
-/* L2I Debug msgs */
-#define IPC_IA_PRINT_STRING 0xF0
-
-
-
-/* Command Response or Acknowledge message to any IPC message will have
- * same message ID and stream ID information which is sent.
- * There is no specific Ack message ID. The data field is used as response
- * meaning.
- */
-enum ackData {
-	IPC_ACK_SUCCESS = 0,
-	IPC_ACK_FAILURE
-};
-
-
-enum sst_error_codes {
-	/* Error code,response to msgId: Description */
-	/* Common error codes */
-	SST_SUCCESS = 0,	/* Success */
-	SST_ERR_INVALID_STREAM_ID = 1,
-	SST_ERR_INVALID_MSG_ID = 2,
-	SST_ERR_INVALID_STREAM_OP = 3,
-	SST_ERR_INVALID_PARAMS = 4,
-	SST_ERR_INVALID_CODEC = 5,
-	SST_ERR_INVALID_MEDIA_TYPE = 6,
-	SST_ERR_STREAM_ERR = 7,
-
-	/* IPC specific error codes */
-	SST_IPC_ERR_CALL_BACK_NOT_REGD = 8,
-	SST_IPC_ERR_STREAM_NOT_ALLOCATED = 9,
-	SST_IPC_ERR_STREAM_ALLOC_FAILED = 10,
-	SST_IPC_ERR_GET_STREAM_FAILED = 11,
-	SST_ERR_MOD_NOT_AVAIL = 12,
-	SST_ERR_MOD_DNLD_RQD = 13,
-	SST_ERR_STREAM_STOPPED = 14,
-	SST_ERR_STREAM_IN_USE = 15,
-
-	/* Capture specific error codes */
-	SST_CAP_ERR_INCMPLTE_CAPTURE_MSG = 16,
-	SST_CAP_ERR_CAPTURE_FAIL = 17,
-	SST_CAP_ERR_GET_DDR_NEW_SGLIST = 18,
-	SST_CAP_ERR_UNDER_RUN = 19,
-	SST_CAP_ERR_OVERFLOW = 20,
-
-	/* Playback specific error codes*/
-	SST_PB_ERR_INCMPLTE_PLAY_MSG = 21,
-	SST_PB_ERR_PLAY_FAIL = 22,
-	SST_PB_ERR_GET_DDR_NEW_SGLIST = 23,
-
-	/* Codec manager specific error codes */
-	SST_LIB_ERR_LIB_DNLD_REQUIRED = 24,
-	SST_LIB_ERR_LIB_NOT_SUPPORTED = 25,
-
-	/* Library manager specific error codes */
-	SST_SCC_ERR_PREP_DNLD_FAILED = 26,
-	SST_SCC_ERR_LIB_DNLD_RES_FAILED = 27,
-	/* Scheduler specific error codes */
-	SST_SCH_ERR_FAIL = 28,
-
-	/* DMA specific error codes */
-	SST_DMA_ERR_NO_CHNL_AVAILABLE = 29,
-	SST_DMA_ERR_INVALID_INPUT_PARAMS = 30,
-	SST_DMA_ERR_CHNL_ALREADY_SUSPENDED = 31,
-	SST_DMA_ERR_CHNL_ALREADY_STARTED = 32,
-	SST_DMA_ERR_CHNL_NOT_ENABLED = 33,
-	SST_DMA_ERR_TRANSFER_FAILED = 34,
-
-	SST_SSP_ERR_ALREADY_ENABLED = 35,
-	SST_SSP_ERR_ALREADY_DISABLED = 36,
-	SST_SSP_ERR_NOT_INITIALIZED = 37,
-	SST_SSP_ERR_SRAM_NO_DMA_DATA = 38,
-
-	/* Other error codes */
-	SST_ERR_MOD_INIT_FAIL = 39,
-
-	/* FW init error codes */
-	SST_RDR_ERR_IO_DEV_SEL_NOT_ALLOWED = 40,
-	SST_RDR_ERR_ROUTE_ALREADY_STARTED = 41,
-	SST_RDR_ERR_IO_DEV_SEL_FAILED = 42,
-	SST_RDR_PREP_CODEC_DNLD_FAILED = 43,
-
-	/* Memory debug error codes */
-	SST_ERR_DBG_MEM_READ_FAIL = 44,
-	SST_ERR_DBG_MEM_WRITE_FAIL = 45,
-	SST_ERR_INSUFFICIENT_INPUT_SG_LIST = 46,
-	SST_ERR_INSUFFICIENT_OUTPUT_SG_LIST = 47,
-
-	SST_ERR_BUFFER_NOT_AVAILABLE = 48,
-	SST_ERR_BUFFER_NOT_ALLOCATED = 49,
-	SST_ERR_INVALID_REGION_TYPE = 50,
-	SST_ERR_NULL_PTR = 51,
-	SST_ERR_INVALID_BUFFER_SIZE = 52,
-	SST_ERR_INVALID_BUFFER_INDEX = 53,
-
-	/*IIPC specific error codes */
-	SST_IIPC_QUEUE_FULL = 54,
-	SST_IIPC_ERR_MSG_SND_FAILED = 55,
-	SST_PB_ERR_UNDERRUN_OCCURED = 56,
-	SST_RDR_INSUFFICIENT_MIXER_BUFFER = 57,
-	SST_INVALID_TIME_SLOTS = 58,
-};
-
-enum dbg_mem_data_type {
-	/* Data type of debug read/write */
-	DATA_TYPE_U32,
-	DATA_TYPE_U16,
-	DATA_TYPE_U8,
-};
-
-/* CAUTION NOTE: All IPC message body must be multiple of 32 bits.*/
-
-/* IPC Header */
-union ipc_header {
-	struct {
-		u32  msg_id:8; /* Message ID - Max 256 Message Types */
-		u32  str_id:5;
-		u32  large:1;	/* Large Message if large = 1 */
-		u32  reserved:2;	/* Reserved for future use */
-		u32  data:14;	/* Ack/Info for msg, size of msg in Mailbox */
-		u32  done:1; /* bit 30 */
-		u32  busy:1; /* bit 31 */
-	} part;
-	u32 full;
-} __attribute__ ((packed));
-
-/* Firmware build info */
-struct sst_fw_build_info {
-	unsigned char  date[16]; /* Firmware build date */
-	unsigned char  time[16]; /* Firmware build time */
-} __attribute__ ((packed));
-
-struct ipc_header_fw_init {
-	struct snd_sst_fw_version fw_version;/* Firmware version details */
-	struct sst_fw_build_info build_info;
-	u16 result;	/* Fw init result */
-	u8 module_id; /* Module ID in case of error */
-	u8 debug_info; /* Debug info from Module ID in case of fail */
-} __attribute__ ((packed));
-
-/* Address and size info of a frame buffer in DDR */
-struct sst_address_info {
-	u32 addr; /* Address at IA */
-	u32 size; /* Size of the buffer */
-} __attribute__ ((packed));
-
-/* Time stamp */
-struct snd_sst_tstamp {
-	u64 samples_processed;/* capture - data in DDR */
-	u64 samples_rendered;/* playback - data rendered */
-	u64 bytes_processed;/* bytes decoded or encoded */
-	u32 sampling_frequency;/* eg: 48000, 44100 */
-	u32 dma_base_address;/* DMA base address */
-	u16	dma_channel_no;/* DMA Channel used for the data transfer*/
-	u16	reserved;/* 32 bit alignment */
-};
-
-/* Frame info to play or capture */
-struct sst_frame_info {
-	u16  num_entries; /* number of entries to follow */
-	u16  rsrvd;
-	struct sst_address_info  addr[MAX_NUM_SCATTER_BUFFERS];
-} __attribute__ ((packed));
-
-/* Frames info for decode */
-struct snd_sst_decode_info {
-	unsigned long long input_bytes_consumed;
-	unsigned long long output_bytes_produced;
-	struct sst_frame_info frames_in;
-	struct sst_frame_info frames_out;
-} __attribute__ ((packed));
-
-/* SST to IA print debug message*/
-struct ipc_sst_ia_print_params {
-	u32 string_size;/* Max value is 160 */
-	u8 prt_string[160];/* Null terminated Char string */
-} __attribute__ ((packed));
-
-/* Voice data message  */
-struct snd_sst_voice_data {
-	u16 num_bytes;/* Number of valid voice data bytes */
-	u8  pcm_wd_size;/* 0=8 bit, 1=16 bit 2=32 bit */
-	u8  reserved;/* Reserved */
-	u8  voice_data_buf[0];/* Voice data buffer in bytes, little endian */
-} __attribute__ ((packed));
-
-/* SST to IA memory read debug message  */
-struct ipc_sst_ia_dbg_mem_rw  {
-	u16  num_bytes;/* Maximum of MAX_DBG_RW_BYTES */
-	u16  data_type;/* enum: dbg_mem_data_type */
-	u32  address;	/* Memory address of data memory of data_type */
-	u8	rw_bytes[MAX_DBG_RW_BYTES];/* Maximum of 64 bytes can be RW */
-} __attribute__ ((packed));
-
-struct ipc_sst_ia_dbg_loop_back {
-	u16 num_dwords; /* Maximum of MAX_DBG_RW_BYTES */
-	u16 increment_val;/* Increments dwords by this value, 0- no increment */
-	u32 lpbk_dwords[MAX_LOOP_BACK_DWORDS];/* Maximum of 8 dwords loopback */
-} __attribute__ ((packed));
-
-/* Stream type params struture for Alloc stream */
-struct snd_sst_str_type {
-	u8 codec_type;		/* Codec type */
-	u8 str_type;		/* 1 = voice 2 = music */
-	u8 operation;		/* Playback or Capture */
-	u8 protected_str;	/* 0=Non DRM, 1=DRM */
-	u8 time_slots;
-	u8 reserved;		/* Reserved */
-	u16 result;		/* Result used for acknowledgment */
-} __attribute__ ((packed));
-
-/* Library info structure */
-struct module_info {
-	u32 lib_version;
-	u32 lib_type;/*TBD- KLOCKWORK u8 lib_type;*/
-	u32 media_type;
-	u8  lib_name[12];
-	u32 lib_caps;
-	unsigned char  b_date[16]; /* Lib build date */
-	unsigned char  b_time[16]; /* Lib build time */
-} __attribute__ ((packed));
-
-/* Library slot info */
-struct lib_slot_info {
-	u8  slot_num; /* 1 or 2 */
-	u8  reserved1;
-	u16 reserved2;
-	u32 iram_size; /* slot size in IRAM */
-	u32 dram_size; /* slot size in DRAM */
-	u32 iram_offset; /* starting offset of slot in IRAM */
-	u32 dram_offset; /* starting offset of slot in DRAM */
-} __attribute__ ((packed));
-
-struct snd_sst_lib_download {
-	struct module_info lib_info; /* library info type, capabilities etc */
-	struct lib_slot_info slot_info; /* slot info to be downloaded */
-	u32 mod_entry_pt;
-};
-
-struct snd_sst_lib_download_info {
-	struct snd_sst_lib_download dload_lib;
-	u16 result;	/* Result used for acknowledgment */
-	u8 pvt_id; /* Private ID */
-	u8 reserved;  /* for alignment */
-};
-
-/* Alloc stream params structure */
-struct snd_sst_alloc_params {
-	struct snd_sst_str_type str_type;
-	struct snd_sst_stream_params stream_params;
-};
-
-struct snd_sst_fw_get_stream_params {
-	struct snd_sst_stream_params codec_params;
-	struct snd_sst_pmic_config pcm_params;
-};
-
-/* Alloc stream response message */
-struct snd_sst_alloc_response {
-	struct snd_sst_str_type str_type; /* Stream type for allocation */
-	struct snd_sst_lib_download lib_dnld; /* Valid only for codec dnld */
-};
-
-/* Drop response */
-struct snd_sst_drop_response {
-	u32 result;
-	u32 bytes;
-};
-
-/* CSV Voice call routing structure */
-struct snd_sst_control_routing {
-	u8 control; /* 0=start, 1=Stop */
-	u8 reserved[3];	/* Reserved- for 32 bit alignment */
-};
-
-
-struct ipc_post {
-	struct list_head node;
-	union ipc_header header; /* driver specific */
-	char *mailbox_data;
-};
-
-struct snd_sst_ctxt_params {
-	u32 address; /* Physical Address in DDR where the context is stored */
-	u32 size; /* size of the context */
-};
-#endif /* __INTEL_SST_FW_IPC_H__ */
diff --git a/drivers/staging/intel_sst/intel_sst_ioctl.h b/drivers/staging/intel_sst/intel_sst_ioctl.h
deleted file mode 100644
index 5da5ee092c69..000000000000
--- a/drivers/staging/intel_sst/intel_sst_ioctl.h
+++ /dev/null
@@ -1,440 +0,0 @@
-#ifndef __INTEL_SST_IOCTL_H__
-#define __INTEL_SST_IOCTL_H__
-/*
- *  intel_sst_ioctl.h - Intel SST Driver for audio engine
- *
- *  Copyright (C) 2008-10 Intel Corporation
- *  Authors:	Vinod Koul <vinod.koul@intel.com>
- *		Harsha Priya <priya.harsha@intel.com>
- *		Dharageswari R <dharageswari.r@intel.com>
- *		KP Jeeja <jeeja.kp@intel.com>
- *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; version 2 of the License.
- *
- *  This program is distributed in the hope that it will be useful, but
- *  WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This file defines all sst ioctls
- */
-
-/* codec and post/pre processing related info */
-
-#include <linux/types.h>
-
-enum sst_codec_types {
-/*  AUDIO/MUSIC	CODEC Type Definitions */
-	SST_CODEC_TYPE_UNKNOWN = 0,
-	SST_CODEC_TYPE_PCM,	/* Pass through Audio codec */
-	SST_CODEC_TYPE_MP3,
-	SST_CODEC_TYPE_MP24,
-	SST_CODEC_TYPE_AAC,
-	SST_CODEC_TYPE_AACP,
-	SST_CODEC_TYPE_eAACP,
-	SST_CODEC_TYPE_WMA9,
-	SST_CODEC_TYPE_WMA10,
-	SST_CODEC_TYPE_WMA10P,
-	SST_CODEC_TYPE_RA,
-	SST_CODEC_TYPE_DDAC3,
-	SST_CODEC_TYPE_STEREO_TRUE_HD,
-	SST_CODEC_TYPE_STEREO_HD_PLUS,
-
-	/*  VOICE CODEC Type Definitions */
-	SST_CODEC_TYPE_VOICE_PCM = 0x21, /* Pass through voice codec */
-};
-
-enum sst_algo_types {
-	SST_CODEC_SRC = 0x64,
-	SST_CODEC_MIXER = 0x65,
-	SST_CODEC_DOWN_MIXER = 0x66,
-	SST_CODEC_VOLUME_CONTROL = 0x67,
-	SST_CODEC_OEM1 = 0xC8,
-	SST_CODEC_OEM2 = 0xC9,
-};
-
-enum snd_sst_stream_ops {
-	STREAM_OPS_PLAYBACK = 0,	/* Decode */
-	STREAM_OPS_CAPTURE,		/* Encode */
-	STREAM_OPS_PLAYBACK_DRM,	/* Play Audio/Voice */
-	STREAM_OPS_PLAYBACK_ALERT,	/* Play Audio/Voice */
-	STREAM_OPS_CAPTURE_VOICE_CALL,	/* CSV Voice recording */
-};
-
-enum stream_mode {
-	SST_STREAM_MODE_NONE = 0,
-	SST_STREAM_MODE_DNR = 1,
-	SST_STREAM_MODE_FNF = 2,
-	SST_STREAM_MODE_CAPTURE = 3
-};
-
-enum stream_type {
-	SST_STREAM_TYPE_NONE = 0,
-	SST_STREAM_TYPE_MUSIC = 1,
-	SST_STREAM_TYPE_NORMAL = 2,
-	SST_STREAM_TYPE_LONG_PB = 3,
-	SST_STREAM_TYPE_LOW_LATENCY = 4,
-};
-
-enum snd_sst_audio_device_type {
-	SND_SST_DEVICE_HEADSET = 1,
-	SND_SST_DEVICE_IHF,
-	SND_SST_DEVICE_VIBRA,
-	SND_SST_DEVICE_HAPTIC,
-	SND_SST_DEVICE_CAPTURE,
-};
-
-/* Firmware Version info */
-struct snd_sst_fw_version {
-	__u8 build;	/* build number*/
-	__u8 minor;	/* minor number*/
-	__u8 major;	/* major number*/
-	__u8 type; /* build type */
-};
-
-/* Port info structure */
-struct snd_sst_port_info {
-	__u16 port_type;
-	__u16 reserved;
-};
-
-/* Mixer info structure */
-struct snd_sst_mix_info {
-	__u16 max_streams;
-	__u16 reserved;
-};
-
-/* PCM Parameters */
-struct snd_pcm_params {
-	__u16 codec;	/* codec type */
-	__u8 num_chan;	/* 1=Mono, 2=Stereo */
-	__u8 pcm_wd_sz;	/* 16/24 - bit*/
-	__u32 reserved;	/* Bitrate in bits per second */
-	__u32 sfreq;	/* Sampling rate in Hz */
-	__u32 ring_buffer_size;
-	__u32 period_count;	/* period elapsed in samples*/
-	__u32 ring_buffer_addr;
-};
-
-/* MP3 Music Parameters Message */
-struct snd_mp3_params {
-	__u16 codec;
-	__u8  num_chan;	/* 1=Mono, 2=Stereo	*/
-	__u8  pcm_wd_sz; /* 16/24 - bit*/
-	__u32 brate; /* Use the hard coded value. */
-	__u32 sfreq; /* Sampling freq eg. 8000, 441000, 48000 */
-	__u8  crc_check; /* crc_check - disable (0) or enable (1) */
-	__u8  op_align; /* op align 0- 16 bit, 1- MSB, 2 LSB*/
-	__u16 reserved;	/* Unused */
-};
-
-#define AAC_BIT_STREAM_ADTS		0
-#define AAC_BIT_STREAM_ADIF		1
-#define AAC_BIT_STREAM_RAW		2
-
-/* AAC Music Parameters Message */
-struct snd_aac_params {
-	__u16 codec;
-	__u8 num_chan; /* 1=Mono, 2=Stereo*/
-	__u8 pcm_wd_sz; /* 16/24 - bit*/
-	__u32 brate;
-	__u32 sfreq; /* Sampling freq eg. 8000, 441000, 48000 */
-	__u32 aac_srate;	/* Plain AAC decoder operating sample rate */
-	__u8 mpg_id; /* 0=MPEG-2, 1=MPEG-4 */
-	__u8 bs_format; /* input bit stream format adts=0, adif=1, raw=2 */
-	__u8 aac_profile; /* 0=Main Profile, 1=LC profile, 3=SSR profile */
-	__u8 ext_chl; /* No.of external channels */
-	__u8 aot; /* Audio object type. 1=Main , 2=LC , 3=SSR, 4=SBR*/
-	__u8 op_align; /* output alignment 0=16 bit , 1=MSB, 2= LSB align */
-	__u8 brate_type; /* 0=CBR, 1=VBR */
-	__u8 crc_check; /* crc check 0= disable, 1=enable */
-	__s8 bit_stream_format[8]; /* input bit stream format adts/adif/raw */
-	__u8 jstereo; /* Joint stereo Flag */
-	__u8 sbr_present; /* 1 = SBR Present, 0 = SBR absent, for RAW */
-	__u8 downsample;       /* 1 = Downsampling ON, 0 = Downsampling OFF */
-	__u8 num_syntc_elems; /* 1- Mono/stereo, 0 - Dual Mono, 0 - for raw */
-	__s8 syntc_id[2]; /* 0 for ID_SCE(Dula Mono), -1 for raw */
-	__s8 syntc_tag[2]; /* raw - -1 and 0 -16 for rest of the streams */
-	__u8 pce_present; /* Flag. 1- present 0 - not present, for RAW */
-	__u8 sbr_type;		/* sbr_type: 0-plain aac, 1-aac-v1, 2-aac-v2 */
-	__u8 outchmode;  /*0- mono, 1-stereo, 2-dual mono 3-Parametric stereo */
-	__u8 ps_present;
-};
-
-/* WMA Music Parameters Message */
-struct snd_wma_params {
-	__u16 codec;
-	__u8  num_chan;	/* 1=Mono, 2=Stereo */
-	__u8  pcm_wd_sz;	/* 16/24 - bit*/
-	__u32 brate;	/* Use the hard coded value. */
-	__u32 sfreq;	/* Sampling freq eg. 8000, 441000, 48000 */
-	__u32 channel_mask;  /* Channel Mask */
-	__u16 format_tag;	/* Format Tag */
-	__u16 block_align;	/* packet size */
-	__u16 wma_encode_opt;/* Encoder option */
-	__u8 op_align;	/* op align 0- 16 bit, 1- MSB, 2 LSB */
-	__u8 pcm_src;	/* input pcm bit width */
-};
-
-/* Pre processing param structure */
-struct snd_prp_params {
-	__u32 reserved;	/* No pre-processing defined yet */
-};
-
-/* Pre and post processing params structure */
-struct snd_ppp_params {
-	__u8			algo_id;/* Post/Pre processing algorithm ID  */
-	__u8			str_id;	/*Only 5 bits used 0 - 31 are valid*/
-	__u8			enable;	/* 0= disable, 1= enable*/
-	__u8			reserved;
-	__u32			size;	/*Size of parameters for all blocks*/
-	void			*params;
-} __attribute__ ((packed));
-
-struct snd_sst_postproc_info {
-	__u32 src_min;		/* Supported SRC Min sampling freq */
-	__u32 src_max;		/* Supported SRC Max sampling freq */
-	__u8  src;		/* 0=Not supported, 1=Supported */
-	__u8  bass_boost;		/* 0=Not Supported, 1=Supported */
-	__u8  stereo_widening;	/* 0=Not Supported, 1=Supported */
-	__u8  volume_control;	/* 0=Not Supported, 1=Supported */
-	__s16 min_vol;		/* Minimum value of Volume in dB */
-	__s16 max_vol;		/* Maximum value of Volume in dB */
-	__u8 mute_control;	/* 0=No Mute, 1=Mute */
-	__u8 reserved1;
-	__u16 reserved2;
-};
-
-/* pre processing Capability info structure */
-struct snd_sst_prp_info {
-	__s16 min_vol;			/* Minimum value of Volume in dB */
-	__s16 max_vol;			/* Maximum value of Volume in dB */
-	__u8 volume_control;		/* 0=Not Supported, 1=Supported */
-	__u8 reserved1;			/* for 32 bit alignment */
-	__u16 reserved2;		/* for 32 bit alignment */
-} __attribute__ ((packed));
-
-/*Pre / Post processing algorithms support*/
-struct snd_sst_ppp_info {
-	__u32 src:1;		/* 0=Not supported, 1=Supported */
-	__u32 mixer:1;		/* 0=Not supported, 1=Supported */
-	__u32 volume_control:1;	/* 0=Not Supported, 1=Supported */
-	__u32 mute_control:1;	/* 0=Not Supported, 1=Supported */
-	__u32 anc:1;		/* 0=Not Supported, 1=Supported */
-	__u32 side_tone:1;	/* 0=Not Supported, 1=Supported */
-	__u32 dc_removal:1;	/* 0=Not Supported, 1=Supported */
-	__u32 equalizer:1;	/* 0=Not Supported, 1=Supported */
-	__u32 spkr_prot:1;	/* 0=Not Supported, 1=Supported */
-	__u32 bass_boost:1;	/* 0=Not Supported, 1=Supported */
-	__u32 stereo_widening:1;/* 0=Not Supported, 1=Supported */
-	__u32 rsvd1:21;
-	__u32 rsvd2;
-};
-
-/* Firmware capabilities info */
-struct snd_sst_fw_info {
-	struct snd_sst_fw_version fw_version; /* Firmware version */
-	__u8 audio_codecs_supported[8];	/* Codecs supported by FW */
-	__u32 recommend_min_duration; /* Min duration for Lowpower Playback */
-	__u8 max_pcm_streams_supported; /* Max num of PCM streams supported */
-	__u8 max_enc_streams_supported;	/* Max number of Encoded streams  */
-	__u16 reserved;		/* 32 bit alignment*/
-	struct snd_sst_ppp_info ppp_info; /* pre_processing mod cap info */
-	struct snd_sst_postproc_info pop_info; /* Post processing cap info*/
-	struct snd_sst_port_info port_info[3]; /* Port info */
-	struct snd_sst_mix_info mix_info;/* Mixer info */
-	__u32 min_input_buf; /* minmum i/p buffer for decode */
-};
-
-/* Codec params struture */
-union  snd_sst_codec_params {
-	struct snd_pcm_params pcm_params;
-	struct snd_mp3_params mp3_params;
-	struct snd_aac_params aac_params;
-	struct snd_wma_params wma_params;
-};
-
-
-struct snd_sst_stream_params {
-	union snd_sst_codec_params uc;
-} __attribute__ ((packed));
-
-struct snd_sst_params {
-	__u32 result;
-	__u32 stream_id;
-	__u8 codec;
-	__u8 ops;
-	__u8 stream_type;
-	__u8 device_type;
-	struct snd_sst_stream_params sparams;
-};
-
-struct snd_sst_vol {
-	__u32	stream_id;
-	__s32	volume;
-	__u32	ramp_duration;
-	__u32	ramp_type;		/* Ramp type, default=0 */
-};
-
-struct snd_sst_mute {
-	__u32	stream_id;
-	__u32	mute;
-};
-
-/* ioctl related stuff here */
-struct snd_sst_pmic_config {
-	__u32  sfreq;                /* Sampling rate in Hz */
-	__u16  num_chan;             /* Mono =1 or Stereo =2 */
-	__u16  pcm_wd_sz;            /* Number of bits per sample */
-} __attribute__ ((packed));
-
-struct snd_sst_get_stream_params {
-	struct snd_sst_params codec_params;
-	struct snd_sst_pmic_config pcm_params;
-};
-
-enum snd_sst_target_type {
-	SND_SST_TARGET_PMIC = 1,
-	SND_SST_TARGET_LPE,
-	SND_SST_TARGET_MODEM,
-	SND_SST_TARGET_BT,
-	SND_SST_TARGET_FM,
-	SND_SST_TARGET_NONE,
-};
-
-enum snd_sst_device_type {
-	SND_SST_DEVICE_SSP = 1,
-	SND_SST_DEVICE_PCM,
-	SND_SST_DEVICE_OTHER,
-};
-
-enum snd_sst_device_mode {
-
-	SND_SST_DEV_MODE_PCM_MODE1 = 1, /*(16-bit word, bit-length frame sync)*/
-	SND_SST_DEV_MODE_PCM_MODE2,
-	SND_SST_DEV_MODE_PCM_MODE3,
-	SND_SST_DEV_MODE_PCM_MODE4_RIGHT_JUSTIFIED,
-	SND_SST_DEV_MODE_PCM_MODE4_LEFT_JUSTIFIED,
-	SND_SST_DEV_MODE_PCM_MODE4_I2S, /*(I2S mode, 16-bit words)*/
-	SND_SST_DEV_MODE_PCM_MODE5,
-	SND_SST_DEV_MODE_PCM_MODE6,
-};
-
-enum snd_sst_port_action {
-	SND_SST_PORT_PREPARE = 1,
-	SND_SST_PORT_ACTIVATE,
-};
-
-/* Target selection per device structure */
-struct snd_sst_slot_info {
-	__u8 mix_enable;	/* Mixer enable or disable */
-	__u8 device_type;
-	__u8 device_instance;	/* 0, 1, 2 */
-	__u8 target_device;
-	__u16 target_sink;
-	__u8 slot[2];
-	__u8 master;
-	__u8 action;
-	__u8 device_mode;
-	__u8 reserved;
-	struct snd_sst_pmic_config pcm_params;
-} __attribute__ ((packed));
-
-#define SST_MAX_TARGET_DEVICES 3
-/* Target device list structure */
-struct snd_sst_target_device  {
-	__u32 device_route;
-	struct snd_sst_slot_info devices[SST_MAX_TARGET_DEVICES];
-} __attribute__ ((packed));
-
-struct snd_sst_driver_info {
-	__u32 version;	/* Version of the driver */
-	__u32 active_pcm_streams;
-	__u32 active_enc_streams;
-	__u32 max_pcm_streams;
-	__u32 max_enc_streams;
-	__u32 buf_per_stream;
-};
-
-enum snd_sst_buff_type {
-	SST_BUF_USER = 1,
-	SST_BUF_MMAP,
-	SST_BUF_RAR,
-};
-
-struct snd_sst_mmap_buff_entry {
-	unsigned int offset;
-	unsigned int size;
-};
-
-struct snd_sst_mmap_buffs {
-	unsigned int entries;
-	enum snd_sst_buff_type type;
-	struct snd_sst_mmap_buff_entry *buff;
-};
-
-struct snd_sst_buff_entry {
-	void *buffer;
-	unsigned int size;
-};
-
-struct snd_sst_buffs {
-	unsigned int entries;
-	__u8 type;
-	struct snd_sst_buff_entry *buff_entry;
-};
-
-struct snd_sst_dbufs  {
-	unsigned long long input_bytes_consumed;
-	unsigned long long output_bytes_produced;
-	struct snd_sst_buffs *ibufs;
-	struct snd_sst_buffs *obufs;
-};
-
-struct snd_sst_tuning_params {
-	__u8 type;
-	__u8 str_id;
-	__u8 size;
-	__u8 rsvd;
-	__aligned_u64 addr;
-} __attribute__ ((packed));
-/*IOCTL defined here */
-/*SST MMF IOCTLS only */
-#define SNDRV_SST_STREAM_SET_PARAMS _IOR('L', 0x00, \
-					struct snd_sst_stream_params *)
-#define SNDRV_SST_STREAM_GET_PARAMS _IOWR('L', 0x01, \
-					struct snd_sst_get_stream_params *)
-#define SNDRV_SST_STREAM_GET_TSTAMP _IOWR('L', 0x02, __u64 *)
-#define	SNDRV_SST_STREAM_DECODE	_IOWR('L', 0x03, struct snd_sst_dbufs *)
-#define SNDRV_SST_STREAM_BYTES_DECODED _IOWR('L', 0x04, __u64 *)
-#define SNDRV_SST_STREAM_START	_IO('A', 0x42)
-#define SNDRV_SST_STREAM_DROP	_IO('A', 0x43)
-#define SNDRV_SST_STREAM_DRAIN	_IO('A', 0x44)
-#define SNDRV_SST_STREAM_PAUSE	_IOW('A', 0x45, int)
-#define SNDRV_SST_STREAM_RESUME _IO('A', 0x47)
-#define SNDRV_SST_MMAP_PLAY	_IOW('L', 0x05, struct snd_sst_mmap_buffs *)
-#define SNDRV_SST_MMAP_CAPTURE _IOW('L', 0x06, struct snd_sst_mmap_buffs *)
-/*SST common ioctls */
-#define SNDRV_SST_DRIVER_INFO	_IOR('L', 0x10, struct snd_sst_driver_info *)
-#define SNDRV_SST_SET_VOL	_IOW('L', 0x11, struct snd_sst_vol *)
-#define SNDRV_SST_GET_VOL	_IOW('L', 0x12, struct snd_sst_vol *)
-#define SNDRV_SST_MUTE		_IOW('L', 0x13, struct snd_sst_mute *)
-/*AM Ioctly only */
-#define SNDRV_SST_FW_INFO	_IOR('L', 0x20,  struct snd_sst_fw_info *)
-#define SNDRV_SST_SET_TARGET_DEVICE _IOW('L', 0x21, \
-					struct snd_sst_target_device *)
-/*DSP Ioctls on /dev/intel_sst_ctrl only*/
-#define SNDRV_SST_SET_ALGO	_IOW('L', 0x30,  struct snd_ppp_params *)
-#define SNDRV_SST_GET_ALGO	_IOWR('L', 0x31,  struct snd_ppp_params *)
-#define SNDRV_SST_TUNING_PARAMS	_IOW('L', 0x32,  struct snd_sst_tuning_params *)
-
-#endif /* __INTEL_SST_IOCTL_H__ */
diff --git a/drivers/staging/intel_sst/intel_sst_ipc.c b/drivers/staging/intel_sst/intel_sst_ipc.c
deleted file mode 100644
index 5c3444f6ab41..000000000000
--- a/drivers/staging/intel_sst/intel_sst_ipc.c
+++ /dev/null
@@ -1,774 +0,0 @@
-/*
- *  intel_sst_ipc.c - Intel SST Driver for audio engine
- *
- *  Copyright (C) 2008-10 Intel Corporation
- *  Authors:	Vinod Koul <vinod.koul@intel.com>
- *		Harsha Priya <priya.harsha@intel.com>
- *		Dharageswari R <dharageswari.r@intel.com>
- *		KP Jeeja <jeeja.kp@intel.com>
- *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; version 2 of the License.
- *
- *  This program is distributed in the hope that it will be useful, but
- *  WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This file defines all ipc functions
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/pci.h>
-#include <linux/firmware.h>
-#include <linux/sched.h>
-#include "intel_sst.h"
-#include "intel_sst_ioctl.h"
-#include "intel_sst_fw_ipc.h"
-#include "intel_sst_common.h"
-
-/*
- * sst_send_sound_card_type - send sound card type
- *
- * this function sends the sound card type to sst dsp engine
- */
-static void sst_send_sound_card_type(void)
-{
-	struct ipc_post *msg = NULL;
-
-	if (sst_create_short_msg(&msg))
-		return;
-
-	sst_fill_header(&msg->header, IPC_IA_SET_PMIC_TYPE, 0, 0);
-	msg->header.part.data = sst_drv_ctx->pmic_vendor;
-	spin_lock(&sst_drv_ctx->list_spin_lock);
-	list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list);
-	spin_unlock(&sst_drv_ctx->list_spin_lock);
-	sst_post_message(&sst_drv_ctx->ipc_post_msg_wq);
-	return;
-}
-
-/**
-* sst_post_message - Posts message to SST
-*
-* @work: Pointer to work structure
-*
-* This function is called by any component in driver which
-* wants to send an IPC message. This will post message only if
-* busy bit is free
-*/
-void sst_post_message(struct work_struct *work)
-{
-	struct ipc_post *msg;
-	union ipc_header header;
-	union  interrupt_reg imr;
-	int retval = 0;
-	imr.full = 0;
-
-	/*To check if LPE is in stalled state.*/
-	retval = sst_stalled();
-	if (retval < 0) {
-		pr_err("in stalled state\n");
-		return;
-	}
-	pr_debug("post message called\n");
-	spin_lock(&sst_drv_ctx->list_spin_lock);
-
-	/* check list */
-	if (list_empty(&sst_drv_ctx->ipc_dispatch_list)) {
-		/* list is empty, mask imr */
-		pr_debug("Empty msg queue... masking\n");
-		imr.full = readl(sst_drv_ctx->shim + SST_IMRX);
-		imr.part.done_interrupt = 1;
-		/* dummy register for shim workaround */
-		sst_shim_write(sst_drv_ctx->shim, SST_IMRX, imr.full);
-		spin_unlock(&sst_drv_ctx->list_spin_lock);
-		return;
-	}
-
-	/* check busy bit */
-	header.full = sst_shim_read(sst_drv_ctx->shim, SST_IPCX);
-	if (header.part.busy) {
-		/* busy, unmask */
-		pr_debug("Busy not free... unmasking\n");
-		imr.full = readl(sst_drv_ctx->shim + SST_IMRX);
-		imr.part.done_interrupt = 0;
-		/* dummy register for shim workaround */
-		sst_shim_write(sst_drv_ctx->shim, SST_IMRX, imr.full);
-		spin_unlock(&sst_drv_ctx->list_spin_lock);
-		return;
-	}
-	/* copy msg from list */
-	msg = list_entry(sst_drv_ctx->ipc_dispatch_list.next,
-			struct ipc_post, node);
-	list_del(&msg->node);
-	pr_debug("Post message: header = %x\n", msg->header.full);
-	pr_debug("size: = %x\n", msg->header.part.data);
-	if (msg->header.part.large)
-		memcpy_toio(sst_drv_ctx->mailbox + SST_MAILBOX_SEND,
-			msg->mailbox_data, msg->header.part.data);
-	/* dummy register for shim workaround */
-
-	sst_shim_write(sst_drv_ctx->shim, SST_IPCX, msg->header.full);
-	spin_unlock(&sst_drv_ctx->list_spin_lock);
-
-	kfree(msg->mailbox_data);
-	kfree(msg);
-	return;
-}
-
-/*
- * sst_clear_interrupt - clear the SST FW interrupt
- *
- * This function clears the interrupt register after the interrupt
- * bottom half is complete allowing next interrupt to arrive
- */
-void sst_clear_interrupt(void)
-{
-	union interrupt_reg isr;
-	union interrupt_reg imr;
-	union ipc_header clear_ipc;
-
-	imr.full = sst_shim_read(sst_drv_ctx->shim, SST_IMRX);
-	isr.full = sst_shim_read(sst_drv_ctx->shim, SST_ISRX);
-	/*  write 1 to clear  */;
-	isr.part.busy_interrupt = 1;
-	sst_shim_write(sst_drv_ctx->shim, SST_ISRX, isr.full);
-	/* Set IA done bit */
-	clear_ipc.full = sst_shim_read(sst_drv_ctx->shim, SST_IPCD);
-	clear_ipc.part.busy = 0;
-	clear_ipc.part.done = 1;
-	clear_ipc.part.data = IPC_ACK_SUCCESS;
-	sst_shim_write(sst_drv_ctx->shim, SST_IPCD, clear_ipc.full);
-	/* un mask busy interrupt */
-	imr.part.busy_interrupt = 0;
-	sst_shim_write(sst_drv_ctx->shim, SST_IMRX, imr.full);
-}
-
-void sst_restore_fw_context(void)
-{
-	struct snd_sst_ctxt_params fw_context;
-	struct ipc_post *msg = NULL;
-
-	pr_debug("restore_fw_context\n");
-	/*check cpu type*/
-	if (sst_drv_ctx->pci_id != SST_MFLD_PCI_ID)
-		return;
-		/*not supported for rest*/
-	if (!sst_drv_ctx->fw_cntx_size)
-		return;
-		/*nothing to restore*/
-	pr_debug("restoring context......\n");
-	/*send msg to fw*/
-	if (sst_create_large_msg(&msg))
-		return;
-
-	sst_fill_header(&msg->header, IPC_IA_SET_FW_CTXT, 1, 0);
-	msg->header.part.data = sizeof(fw_context) + sizeof(u32);
-	fw_context.address = virt_to_phys((void *)sst_drv_ctx->fw_cntx);
-	fw_context.size = sst_drv_ctx->fw_cntx_size;
-	memcpy(msg->mailbox_data, &msg->header, sizeof(u32));
-	memcpy(msg->mailbox_data + sizeof(u32),
-				&fw_context, sizeof(fw_context));
-	spin_lock(&sst_drv_ctx->list_spin_lock);
-	list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list);
-	spin_unlock(&sst_drv_ctx->list_spin_lock);
-	sst_post_message(&sst_drv_ctx->ipc_post_msg_wq);
-	return;
-}
-/*
- * process_fw_init - process the FW init msg
- *
- * @msg: IPC message from FW
- *
- * This function processes the FW init msg from FW
- * marks FW state and prints debug info of loaded FW
- */
-int process_fw_init(struct sst_ipc_msg_wq *msg)
-{
-	struct ipc_header_fw_init *init =
-		(struct ipc_header_fw_init *)msg->mailbox;
-	int retval = 0;
-
-	pr_debug("*** FW Init msg came***\n");
-	if (init->result) {
-		mutex_lock(&sst_drv_ctx->sst_lock);
-		sst_drv_ctx->sst_state = SST_ERROR;
-		mutex_unlock(&sst_drv_ctx->sst_lock);
-		pr_debug("FW Init failed, Error %x\n", init->result);
-		pr_err("FW Init failed, Error %x\n", init->result);
-		retval = -init->result;
-		return retval;
-	}
-	if (sst_drv_ctx->pci_id == SST_MRST_PCI_ID)
-		sst_send_sound_card_type();
-	mutex_lock(&sst_drv_ctx->sst_lock);
-	sst_drv_ctx->sst_state = SST_FW_RUNNING;
-	sst_drv_ctx->lpe_stalled = 0;
-	mutex_unlock(&sst_drv_ctx->sst_lock);
-	pr_debug("FW Version %02x.%02x.%02x\n", init->fw_version.major,
-			init->fw_version.minor, init->fw_version.build);
-	pr_debug("Build Type %x\n", init->fw_version.type);
-	pr_debug(" Build date %s Time %s\n",
-			init->build_info.date, init->build_info.time);
-	sst_wake_up_alloc_block(sst_drv_ctx, FW_DWNL_ID, retval, NULL);
-	sst_restore_fw_context();
-	return retval;
-}
-/**
-* sst_process_message - Processes message from SST
-*
-* @work:	Pointer to work structure
-*
-* This function is scheduled by ISR
-* It take a msg from process_queue and does action based on msg
-*/
-void sst_process_message(struct work_struct *work)
-{
-	struct sst_ipc_msg_wq *msg =
-			container_of(work, struct sst_ipc_msg_wq, wq);
-	int str_id = msg->header.part.str_id;
-
-	pr_debug("IPC process for %x\n", msg->header.full);
-
-	/* based on msg in list call respective handler */
-	switch (msg->header.part.msg_id) {
-	case IPC_SST_BUF_UNDER_RUN:
-	case IPC_SST_BUF_OVER_RUN:
-		if (sst_validate_strid(str_id)) {
-			pr_err("stream id %d invalid\n", str_id);
-			break;
-		}
-		pr_err("Buffer under/overrun for %d\n",
-				msg->header.part.str_id);
-		pr_err("Got Underrun & not to send data...ignore\n");
-		break;
-
-	case IPC_SST_GET_PLAY_FRAMES:
-		if (sst_drv_ctx->pci_id == SST_MRST_PCI_ID) {
-			struct stream_info *stream ;
-
-			if (sst_validate_strid(str_id)) {
-				pr_err("strid %d invalid\n", str_id);
-				break;
-			}
-			/* call sst_play_frame */
-			stream = &sst_drv_ctx->streams[str_id];
-			pr_debug("sst_play_frames for %d\n",
-					msg->header.part.str_id);
-			mutex_lock(&sst_drv_ctx->streams[str_id].lock);
-			sst_play_frame(msg->header.part.str_id);
-			mutex_unlock(&sst_drv_ctx->streams[str_id].lock);
-			break;
-		} else
-			pr_err("sst_play_frames for Penwell!!\n");
-
-	case IPC_SST_GET_CAPT_FRAMES:
-		if (sst_drv_ctx->pci_id == SST_MRST_PCI_ID) {
-			struct stream_info *stream;
-			/* call sst_capture_frame */
-			if (sst_validate_strid(str_id)) {
-				pr_err("str id %d invalid\n", str_id);
-				break;
-			}
-			stream = &sst_drv_ctx->streams[str_id];
-			pr_debug("sst_capture_frames for %d\n",
-					msg->header.part.str_id);
-			mutex_lock(&stream->lock);
-			if (stream->mmapped == false &&
-					stream->src == SST_DRV) {
-				pr_debug("waking up block for copy.\n");
-				stream->data_blk.ret_code = 0;
-				stream->data_blk.condition = true;
-				stream->data_blk.on = false;
-				wake_up(&sst_drv_ctx->wait_queue);
-			} else
-				sst_capture_frame(msg->header.part.str_id);
-			mutex_unlock(&stream->lock);
-		} else
-			pr_err("sst_play_frames for Penwell!!\n");
-		break;
-
-	case IPC_IA_PRINT_STRING:
-		pr_debug("been asked to print something by fw\n");
-		/* TBD */
-		break;
-
-	case IPC_IA_FW_INIT_CMPLT: {
-		/* send next data to FW */
-		process_fw_init(msg);
-		break;
-	}
-
-	case IPC_SST_STREAM_PROCESS_FATAL_ERR:
-		if (sst_validate_strid(str_id)) {
-			pr_err("stream id %d invalid\n", str_id);
-			break;
-		}
-		pr_err("codec fatal error %x stream %d...\n",
-				msg->header.full, msg->header.part.str_id);
-		pr_err("Dropping the stream\n");
-		sst_drop_stream(msg->header.part.str_id);
-		break;
-	case IPC_IA_LPE_GETTING_STALLED:
-		sst_drv_ctx->lpe_stalled = 1;
-		break;
-	case IPC_IA_LPE_UNSTALLED:
-		sst_drv_ctx->lpe_stalled = 0;
-		break;
-	default:
-		/* Illegal case */
-		pr_err("Unhandled msg %x header %x\n",
-		msg->header.part.msg_id, msg->header.full);
-	}
-	sst_clear_interrupt();
-	return;
-}
-
-/**
-* sst_process_reply - Processes reply message from SST
-*
-* @work:	Pointer to work structure
-*
-* This function is scheduled by ISR
-* It take a reply msg from response_queue and
-* does action based on msg
-*/
-void sst_process_reply(struct work_struct *work)
-{
-	struct sst_ipc_msg_wq *msg =
-			container_of(work, struct sst_ipc_msg_wq, wq);
-
-	int str_id = msg->header.part.str_id;
-	struct stream_info *str_info;
-
-	switch (msg->header.part.msg_id) {
-	case IPC_IA_TARGET_DEV_SELECT:
-		if (!msg->header.part.data) {
-			sst_drv_ctx->tgt_dev_blk.ret_code = 0;
-		} else {
-			pr_err(" Msg %x reply error %x\n",
-			msg->header.part.msg_id, msg->header.part.data);
-			sst_drv_ctx->tgt_dev_blk.ret_code =
-					-msg->header.part.data;
-		}
-
-		if (sst_drv_ctx->tgt_dev_blk.on == true) {
-				sst_drv_ctx->tgt_dev_blk.condition = true;
-				wake_up(&sst_drv_ctx->wait_queue);
-		}
-		break;
-	case IPC_IA_ALG_PARAMS: {
-		pr_debug("sst:IPC_ALG_PARAMS response %x\n", msg->header.full);
-		pr_debug("sst: data value %x\n", msg->header.part.data);
-		pr_debug("sst: large value %x\n", msg->header.part.large);
-
-		if (!msg->header.part.large) {
-			if (!msg->header.part.data) {
-				pr_debug("sst: alg set success\n");
-				sst_drv_ctx->ppp_params_blk.ret_code = 0;
-			} else {
-				pr_debug("sst: alg set failed\n");
-				sst_drv_ctx->ppp_params_blk.ret_code =
-							-msg->header.part.data;
-			}
-
-		} else if (msg->header.part.data) {
-			struct snd_ppp_params *mailbox_params, *get_params;
-			char *params;
-
-			pr_debug("sst: alg get success\n");
-			mailbox_params = (struct snd_ppp_params *)msg->mailbox;
-			get_params = kzalloc(sizeof(*get_params), GFP_KERNEL);
-			if (get_params == NULL) {
-				pr_err("sst: out of memory for ALG PARAMS");
-				break;
-			}
-			memcpy_fromio(get_params, mailbox_params,
-							sizeof(*get_params));
-			get_params->params = kzalloc(mailbox_params->size,
-							GFP_KERNEL);
-			if (get_params->params == NULL) {
-				kfree(get_params);
-				pr_err("sst: out of memory for ALG PARAMS block");
-				break;
-			}
-			params = msg->mailbox;
-			params = params + sizeof(*mailbox_params) - sizeof(u32);
-			memcpy_fromio(get_params->params, params,
-							get_params->size);
-			sst_drv_ctx->ppp_params_blk.ret_code = 0;
-			sst_drv_ctx->ppp_params_blk.data = get_params;
-		}
-
-		if (sst_drv_ctx->ppp_params_blk.on == true) {
-			sst_drv_ctx->ppp_params_blk.condition = true;
-			wake_up(&sst_drv_ctx->wait_queue);
-		}
-		break;
-	}
-
-	case IPC_IA_TUNING_PARAMS: {
-		pr_debug("sst:IPC_TUNING_PARAMS resp: %x\n", msg->header.full);
-		pr_debug("data value %x\n", msg->header.part.data);
-		if (msg->header.part.large) {
-			pr_debug("alg set failed\n");
-			sst_drv_ctx->ppp_params_blk.ret_code =
-							-msg->header.part.data;
-		} else {
-			pr_debug("alg set success\n");
-			sst_drv_ctx->ppp_params_blk.ret_code = 0;
-		}
-		if (sst_drv_ctx->ppp_params_blk.on == true) {
-			sst_drv_ctx->ppp_params_blk.condition = true;
-			wake_up(&sst_drv_ctx->wait_queue);
-		}
-	}
-
-	case IPC_IA_GET_FW_INFO: {
-		struct snd_sst_fw_info *fw_info =
-			(struct snd_sst_fw_info *)msg->mailbox;
-		if (msg->header.part.large) {
-			int major = fw_info->fw_version.major;
-			int minor = fw_info->fw_version.minor;
-			int build = fw_info->fw_version.build;
-			pr_debug("Msg succeeded %x\n",
-				       msg->header.part.msg_id);
-			pr_debug("INFO: ***FW*** = %02d.%02d.%02d\n",
-					major, minor, build);
-			memcpy_fromio(sst_drv_ctx->fw_info_blk.data,
-				((struct snd_sst_fw_info *)(msg->mailbox)),
-				sizeof(struct snd_sst_fw_info));
-			sst_drv_ctx->fw_info_blk.ret_code = 0;
-		} else {
-			pr_err(" Msg %x reply error %x\n",
-			msg->header.part.msg_id, msg->header.part.data);
-			sst_drv_ctx->fw_info_blk.ret_code =
-					-msg->header.part.data;
-		}
-		if (sst_drv_ctx->fw_info_blk.on == true) {
-			pr_debug("Memcopy succeeded\n");
-			sst_drv_ctx->fw_info_blk.on = false;
-			sst_drv_ctx->fw_info_blk.condition = true;
-			wake_up(&sst_drv_ctx->wait_queue);
-		}
-		break;
-	}
-	case IPC_IA_SET_STREAM_MUTE:
-		if (!msg->header.part.data) {
-			pr_debug("Msg succeeded %x\n",
-				       msg->header.part.msg_id);
-			sst_drv_ctx->mute_info_blk.ret_code = 0;
-		} else {
-			pr_err(" Msg %x reply error %x\n",
-			msg->header.part.msg_id, msg->header.part.data);
-			sst_drv_ctx->mute_info_blk.ret_code =
-					-msg->header.part.data;
-
-		}
-		if (sst_drv_ctx->mute_info_blk.on == true) {
-			sst_drv_ctx->mute_info_blk.on = false;
-			sst_drv_ctx->mute_info_blk.condition = true;
-			wake_up(&sst_drv_ctx->wait_queue);
-		}
-		break;
-	case IPC_IA_SET_STREAM_VOL:
-		if (!msg->header.part.data) {
-			pr_debug("Msg succeeded %x\n",
-				       msg->header.part.msg_id);
-			sst_drv_ctx->vol_info_blk.ret_code = 0;
-		} else {
-			pr_err(" Msg %x reply error %x\n",
-					msg->header.part.msg_id,
-			msg->header.part.data);
-			sst_drv_ctx->vol_info_blk.ret_code =
-					-msg->header.part.data;
-
-		}
-
-		if (sst_drv_ctx->vol_info_blk.on == true) {
-			sst_drv_ctx->vol_info_blk.on = false;
-			sst_drv_ctx->vol_info_blk.condition = true;
-			wake_up(&sst_drv_ctx->wait_queue);
-		}
-		break;
-	case IPC_IA_GET_STREAM_VOL:
-		if (msg->header.part.large) {
-			pr_debug("Large Msg Received Successfully\n");
-			pr_debug("Msg succeeded %x\n",
-				       msg->header.part.msg_id);
-			memcpy_fromio(sst_drv_ctx->vol_info_blk.data,
-				(void *) msg->mailbox,
-				sizeof(struct snd_sst_vol));
-			sst_drv_ctx->vol_info_blk.ret_code = 0;
-		} else {
-			pr_err("Msg %x reply error %x\n",
-			msg->header.part.msg_id, msg->header.part.data);
-			sst_drv_ctx->vol_info_blk.ret_code =
-					-msg->header.part.data;
-		}
-		if (sst_drv_ctx->vol_info_blk.on == true) {
-			sst_drv_ctx->vol_info_blk.on = false;
-			sst_drv_ctx->vol_info_blk.condition = true;
-			wake_up(&sst_drv_ctx->wait_queue);
-		}
-		break;
-
-	case IPC_IA_GET_STREAM_PARAMS:
-		if (sst_validate_strid(str_id)) {
-			pr_err("stream id %d invalid\n", str_id);
-			break;
-		}
-		str_info = &sst_drv_ctx->streams[str_id];
-		if (msg->header.part.large) {
-			pr_debug("Get stream large success\n");
-			memcpy_fromio(str_info->ctrl_blk.data,
-				((void *)(msg->mailbox)),
-				sizeof(struct snd_sst_fw_get_stream_params));
-			str_info->ctrl_blk.ret_code = 0;
-		} else {
-			pr_err("Msg %x reply error %x\n",
-				msg->header.part.msg_id, msg->header.part.data);
-			str_info->ctrl_blk.ret_code = -msg->header.part.data;
-		}
-		if (str_info->ctrl_blk.on == true) {
-			str_info->ctrl_blk.on = false;
-			str_info->ctrl_blk.condition = true;
-			wake_up(&sst_drv_ctx->wait_queue);
-		}
-		break;
-	case IPC_IA_DECODE_FRAMES:
-		if (sst_validate_strid(str_id)) {
-			pr_err("stream id %d invalid\n", str_id);
-			break;
-		}
-		str_info = &sst_drv_ctx->streams[str_id];
-		if (msg->header.part.large) {
-			pr_debug("Msg succeeded %x\n",
-				       msg->header.part.msg_id);
-			memcpy_fromio(str_info->data_blk.data,
-					((void *)(msg->mailbox)),
-					sizeof(struct snd_sst_decode_info));
-			str_info->data_blk.ret_code = 0;
-		} else {
-			pr_err("Msg %x reply error %x\n",
-				msg->header.part.msg_id, msg->header.part.data);
-			str_info->data_blk.ret_code = -msg->header.part.data;
-		}
-		if (str_info->data_blk.on == true) {
-			str_info->data_blk.on = false;
-			str_info->data_blk.condition = true;
-			wake_up(&sst_drv_ctx->wait_queue);
-		}
-		break;
-	case IPC_IA_DRAIN_STREAM:
-		if (sst_validate_strid(str_id)) {
-			pr_err("stream id %d invalid\n", str_id);
-			break;
-		}
-		str_info = &sst_drv_ctx->streams[str_id];
-		if (!msg->header.part.data) {
-			pr_debug("Msg succeeded %x\n",
-					msg->header.part.msg_id);
-			str_info->ctrl_blk.ret_code = 0;
-
-		} else {
-			pr_err(" Msg %x reply error %x\n",
-				msg->header.part.msg_id, msg->header.part.data);
-			str_info->ctrl_blk.ret_code = -msg->header.part.data;
-
-		}
-		str_info = &sst_drv_ctx->streams[str_id];
-		if (str_info->data_blk.on == true) {
-			str_info->data_blk.on = false;
-			str_info->data_blk.condition = true;
-			wake_up(&sst_drv_ctx->wait_queue);
-		}
-		break;
-
-	case IPC_IA_DROP_STREAM:
-		if (sst_validate_strid(str_id)) {
-			pr_err("str id %d invalid\n", str_id);
-			break;
-		}
-		str_info = &sst_drv_ctx->streams[str_id];
-		if (msg->header.part.large) {
-			struct snd_sst_drop_response *drop_resp =
-				(struct snd_sst_drop_response *)msg->mailbox;
-
-			pr_debug("Drop ret bytes %x\n", drop_resp->bytes);
-
-			str_info->curr_bytes = drop_resp->bytes;
-			str_info->ctrl_blk.ret_code =  0;
-		} else {
-			pr_err(" Msg %x reply error %x\n",
-				msg->header.part.msg_id, msg->header.part.data);
-			str_info->ctrl_blk.ret_code = -msg->header.part.data;
-		}
-		if (str_info->ctrl_blk.on == true) {
-			str_info->ctrl_blk.on = false;
-			str_info->ctrl_blk.condition = true;
-			wake_up(&sst_drv_ctx->wait_queue);
-		}
-		break;
-	case IPC_IA_ENABLE_RX_TIME_SLOT:
-		if (!msg->header.part.data) {
-			pr_debug("RX_TIME_SLOT success\n");
-			sst_drv_ctx->hs_info_blk.ret_code = 0;
-		} else {
-			pr_err(" Msg %x reply error %x\n",
-				msg->header.part.msg_id,
-				msg->header.part.data);
-			sst_drv_ctx->hs_info_blk.ret_code =
-				-msg->header.part.data;
-		}
-		if (sst_drv_ctx->hs_info_blk.on == true) {
-			sst_drv_ctx->hs_info_blk.on = false;
-			sst_drv_ctx->hs_info_blk.condition = true;
-			wake_up(&sst_drv_ctx->wait_queue);
-		}
-		break;
-	case IPC_IA_PAUSE_STREAM:
-	case IPC_IA_RESUME_STREAM:
-	case IPC_IA_SET_STREAM_PARAMS:
-		str_info = &sst_drv_ctx->streams[str_id];
-		if (!msg->header.part.data) {
-			pr_debug("Msg succeeded %x\n",
-					msg->header.part.msg_id);
-			str_info->ctrl_blk.ret_code = 0;
-		} else {
-			pr_err(" Msg %x reply error %x\n",
-					msg->header.part.msg_id,
-					msg->header.part.data);
-			str_info->ctrl_blk.ret_code = -msg->header.part.data;
-		}
-		if (sst_validate_strid(str_id)) {
-			pr_err(" stream id %d invalid\n", str_id);
-			break;
-		}
-
-		if (str_info->ctrl_blk.on == true) {
-			str_info->ctrl_blk.on = false;
-			str_info->ctrl_blk.condition = true;
-			wake_up(&sst_drv_ctx->wait_queue);
-		}
-		break;
-
-	case IPC_IA_FREE_STREAM:
-		str_info = &sst_drv_ctx->streams[str_id];
-		if (!msg->header.part.data) {
-			pr_debug("Stream %d freed\n", str_id);
-		} else {
-			pr_err("Free for %d ret error %x\n",
-				       str_id, msg->header.part.data);
-		}
-		if (str_info->ctrl_blk.on == true) {
-			str_info->ctrl_blk.on = false;
-			str_info->ctrl_blk.condition = true;
-			wake_up(&sst_drv_ctx->wait_queue);
-		}
-		break;
-	case IPC_IA_ALLOC_STREAM: {
-		/* map to stream, call play */
-		struct snd_sst_alloc_response *resp =
-				(struct snd_sst_alloc_response *)msg->mailbox;
-		if (resp->str_type.result)
-			pr_err("error alloc stream = %x\n",
-				       resp->str_type.result);
-		sst_alloc_stream_response(str_id, resp);
-		break;
-	}
-
-	case IPC_IA_PLAY_FRAMES:
-	case IPC_IA_CAPT_FRAMES:
-		if (sst_validate_strid(str_id)) {
-			pr_err("stream id %d invalid\n", str_id);
-			break;
-		}
-		pr_debug("Ack for play/capt frames received\n");
-		break;
-
-	case IPC_IA_PREP_LIB_DNLD: {
-		struct snd_sst_str_type *str_type =
-			(struct snd_sst_str_type *)msg->mailbox;
-		pr_debug("Prep Lib download %x\n",
-				msg->header.part.msg_id);
-		if (str_type->result)
-			pr_err("Prep lib download %x\n", str_type->result);
-		else
-			pr_debug("Can download codec now...\n");
-		sst_wake_up_alloc_block(sst_drv_ctx, str_id,
-				str_type->result, NULL);
-		break;
-	}
-
-	case IPC_IA_LIB_DNLD_CMPLT: {
-		struct snd_sst_lib_download_info *resp =
-			(struct snd_sst_lib_download_info *)msg->mailbox;
-		int retval = resp->result;
-
-		pr_debug("Lib downloaded %x\n", msg->header.part.msg_id);
-		if (resp->result) {
-			pr_err("err in lib dload %x\n", resp->result);
-		} else {
-			pr_debug("Codec download complete...\n");
-			pr_debug("codec Type %d Ver %d Built %s: %s\n",
-				resp->dload_lib.lib_info.lib_type,
-				resp->dload_lib.lib_info.lib_version,
-				resp->dload_lib.lib_info.b_date,
-				resp->dload_lib.lib_info.b_time);
-		}
-		sst_wake_up_alloc_block(sst_drv_ctx, str_id,
-						retval, NULL);
-		break;
-	}
-
-	case IPC_IA_GET_FW_VERSION: {
-		struct ipc_header_fw_init *version =
-				(struct ipc_header_fw_init *)msg->mailbox;
-		int major = version->fw_version.major;
-		int minor = version->fw_version.minor;
-		int build = version->fw_version.build;
-		dev_info(&sst_drv_ctx->pci->dev,
-			"INFO: ***LOADED SST FW VERSION*** = %02d.%02d.%02d\n",
-		major, minor, build);
-		break;
-	}
-	case IPC_IA_GET_FW_BUILD_INF: {
-		struct sst_fw_build_info *build =
-			(struct sst_fw_build_info *)msg->mailbox;
-		pr_debug("Build date:%sTime:%s", build->date, build->time);
-		break;
-	}
-	case IPC_IA_SET_PMIC_TYPE:
-		break;
-	case IPC_IA_START_STREAM:
-		pr_debug("reply for START STREAM %x\n", msg->header.full);
-		break;
-
-	case IPC_IA_GET_FW_CTXT:
-		pr_debug("reply for get fw ctxt  %x\n", msg->header.full);
-		if (msg->header.part.data)
-			sst_drv_ctx->fw_cntx_size = 0;
-		else
-			sst_drv_ctx->fw_cntx_size = *sst_drv_ctx->fw_cntx;
-		pr_debug("fw copied data %x\n", sst_drv_ctx->fw_cntx_size);
-		sst_wake_up_alloc_block(
-			sst_drv_ctx, str_id, msg->header.part.data, NULL);
-		break;
-	default:
-		/* Illegal case */
-		pr_err("process reply:default = %x\n", msg->header.full);
-	}
-	sst_clear_interrupt();
-	return;
-}
diff --git a/drivers/staging/intel_sst/intel_sst_pvt.c b/drivers/staging/intel_sst/intel_sst_pvt.c
deleted file mode 100644
index e034bea56f14..000000000000
--- a/drivers/staging/intel_sst/intel_sst_pvt.c
+++ /dev/null
@@ -1,313 +0,0 @@
-/*
- *  intel_sst_pvt.c - Intel SST Driver for audio engine
- *
- *  Copyright (C) 2008-10	Intel Corp
- *  Authors:	Vinod Koul <vinod.koul@intel.com>
- *		Harsha Priya <priya.harsha@intel.com>
- *		Dharageswari R <dharageswari.r@intel.com>
- *		KP Jeeja <jeeja.kp@intel.com>
- *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; version 2 of the License.
- *
- *  This program is distributed in the hope that it will be useful, but
- *  WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This driver exposes the audio engine functionalities to the ALSA
- *	and middleware.
- *
- *  This file contains all private functions
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/pci.h>
-#include <linux/fs.h>
-#include <linux/firmware.h>
-#include <linux/sched.h>
-#include "intel_sst.h"
-#include "intel_sst_ioctl.h"
-#include "intel_sst_fw_ipc.h"
-#include "intel_sst_common.h"
-
-/*
- * sst_get_block_stream - get a new block stream
- *
- * @sst_drv_ctx: Driver context structure
- *
- * This function assigns a block for the calls that dont have stream context yet
- * the blocks are used for waiting on Firmware's response for any operation
- * Should be called with stream lock held
- */
-int sst_get_block_stream(struct intel_sst_drv *sst_drv_ctx)
-{
-	int i;
-
-	for (i = 0; i < MAX_ACTIVE_STREAM; i++) {
-		if (sst_drv_ctx->alloc_block[i].sst_id == BLOCK_UNINIT) {
-			sst_drv_ctx->alloc_block[i].ops_block.condition = false;
-			sst_drv_ctx->alloc_block[i].ops_block.ret_code = 0;
-			sst_drv_ctx->alloc_block[i].sst_id = 0;
-			break;
-		}
-	}
-	if (i == MAX_ACTIVE_STREAM) {
-		pr_err("max alloc_stream reached\n");
-		i = -EBUSY; /* active stream limit reached */
-	}
-	return i;
-}
-
-/*
- * sst_wait_interruptible - wait on event
- *
- * @sst_drv_ctx: Driver context
- * @block: Driver block to wait on
- *
- * This function waits without a timeout (and is interruptable) for a
- * given block event
- */
-int sst_wait_interruptible(struct intel_sst_drv *sst_drv_ctx,
-				struct sst_block *block)
-{
-	int retval = 0;
-
-	if (!wait_event_interruptible(sst_drv_ctx->wait_queue,
-				block->condition)) {
-		/* event wake */
-		if (block->ret_code < 0) {
-			pr_err("stream failed %d\n", block->ret_code);
-			retval = -EBUSY;
-		} else {
-			pr_debug("event up\n");
-			retval = 0;
-		}
-	} else {
-		pr_err("signal interrupted\n");
-		retval = -EINTR;
-	}
-	return retval;
-
-}
-
-
-/*
- * sst_wait_interruptible_timeout - wait on event interruptable
- *
- * @sst_drv_ctx: Driver context
- * @block: Driver block to wait on
- * @timeout: time for wait on
- *
- * This function waits with a timeout value (and is interruptible) on a
- * given block event
- */
-int sst_wait_interruptible_timeout(
-			struct intel_sst_drv *sst_drv_ctx,
-			struct sst_block *block, int timeout)
-{
-	int retval = 0;
-
-	pr_debug("sst_wait_interruptible_timeout - waiting....\n");
-	if (wait_event_interruptible_timeout(sst_drv_ctx->wait_queue,
-						block->condition,
-						msecs_to_jiffies(timeout))) {
-		if (block->ret_code < 0)
-			pr_err("stream failed %d\n", block->ret_code);
-		else
-			pr_debug("event up\n");
-		retval = block->ret_code;
-	} else {
-		block->on = false;
-		pr_err("timeout occurred...\n");
-		/*setting firmware state as uninit so that the
-		firmware will get re-downloaded on next request
-		this is because firmare not responding for 5 sec
-		is equalant to some unrecoverable error of FW
-		sst_drv_ctx->sst_state = SST_UN_INIT;*/
-		retval = -EBUSY;
-	}
-	return retval;
-
-}
-
-
-/*
- * sst_wait_timeout - wait on event for timeout
- *
- * @sst_drv_ctx: Driver context
- * @block: Driver block to wait on
- *
- * This function waits with a timeout value (and is not interruptible) on a
- * given block event
- */
-int sst_wait_timeout(struct intel_sst_drv *sst_drv_ctx,
-		struct stream_alloc_block *block)
-{
-	int retval = 0;
-
-	/* NOTE:
-	Observed that FW processes the alloc msg and replies even
-	before the alloc thread has finished execution */
-	pr_debug("waiting for %x, condition %x\n",
-		       block->sst_id, block->ops_block.condition);
-	if (wait_event_interruptible_timeout(sst_drv_ctx->wait_queue,
-				block->ops_block.condition,
-				msecs_to_jiffies(SST_BLOCK_TIMEOUT))) {
-		/* event wake */
-		pr_debug("Event wake %x\n", block->ops_block.condition);
-		pr_debug("message ret: %d\n", block->ops_block.ret_code);
-		retval = block->ops_block.ret_code;
-	} else {
-		block->ops_block.on = false;
-		pr_err("Wait timed-out %x\n", block->ops_block.condition);
-		/* settign firmware state as uninit so that the
-		firmware will get redownloaded on next request
-		this is because firmare not responding for 5 sec
-		is equalant to some unrecoverable error of FW
-		sst_drv_ctx->sst_state = SST_UN_INIT;*/
-		retval = -EBUSY;
-	}
-	return retval;
-
-}
-
-/*
- * sst_create_large_msg - create a large IPC message
- *
- * @arg: ipc message
- *
- * this function allocates structures to send a large message to the firmware
- */
-int sst_create_large_msg(struct ipc_post **arg)
-{
-	struct ipc_post *msg;
-
-	msg = kzalloc(sizeof(struct ipc_post), GFP_ATOMIC);
-	if (!msg) {
-		pr_err("kzalloc msg failed\n");
-		return -ENOMEM;
-	}
-
-	msg->mailbox_data = kzalloc(SST_MAILBOX_SIZE, GFP_ATOMIC);
-	if (!msg->mailbox_data) {
-		kfree(msg);
-		pr_err("kzalloc mailbox_data failed");
-		return -ENOMEM;
-	}
-	*arg = msg;
-	return 0;
-}
-
-/*
- * sst_create_short_msg - create a short IPC message
- *
- * @arg: ipc message
- *
- * this function allocates structures to send a short message to the firmware
- */
-int sst_create_short_msg(struct ipc_post **arg)
-{
-	struct ipc_post *msg;
-
-	msg = kzalloc(sizeof(*msg), GFP_ATOMIC);
-	if (!msg) {
-		pr_err("kzalloc msg failed\n");
-		return -ENOMEM;
-	}
-	msg->mailbox_data = NULL;
-	*arg = msg;
-	return 0;
-}
-
-/*
- * sst_clean_stream - clean the stream context
- *
- * @stream: stream structure
- *
- * this function resets the stream contexts
- * should be called in free
- */
-void sst_clean_stream(struct stream_info *stream)
-{
-	struct sst_stream_bufs *bufs = NULL, *_bufs;
-	stream->status = STREAM_UN_INIT;
-	stream->prev = STREAM_UN_INIT;
-	mutex_lock(&stream->lock);
-	list_for_each_entry_safe(bufs, _bufs, &stream->bufs, node) {
-		list_del(&bufs->node);
-		kfree(bufs);
-	}
-	mutex_unlock(&stream->lock);
-
-	if (stream->ops != STREAM_OPS_PLAYBACK_DRM)
-		kfree(stream->decode_ibuf);
-}
-
-/*
- * sst_wake_up_alloc_block - wake up waiting block
- *
- * @sst_drv_ctx: Driver context
- * @sst_id: stream id
- * @status: status of wakeup
- * @data: data pointer of wakeup
- *
- * This function wakes up a sleeping block event based on the response
- */
-void sst_wake_up_alloc_block(struct intel_sst_drv *sst_drv_ctx,
-		u8 sst_id, int status, void *data)
-{
-	int i;
-
-	/* Unblock with retval code */
-	for (i = 0; i < MAX_ACTIVE_STREAM; i++) {
-		if (sst_id == sst_drv_ctx->alloc_block[i].sst_id) {
-			sst_drv_ctx->alloc_block[i].ops_block.condition = true;
-			sst_drv_ctx->alloc_block[i].ops_block.ret_code = status;
-			sst_drv_ctx->alloc_block[i].ops_block.data = data;
-			wake_up(&sst_drv_ctx->wait_queue);
-			break;
-		}
-	}
-}
-
-/*
- * sst_enable_rx_timeslot - Send msg to query for stream parameters
- * @status: rx timeslot to be enabled
- *
- * This function is called when the RX timeslot is required to be enabled
- */
-int sst_enable_rx_timeslot(int status)
-{
-	int retval = 0;
-	struct ipc_post *msg = NULL;
-
-	if (sst_create_short_msg(&msg)) {
-		pr_err("mem allocation failed\n");
-			return -ENOMEM;
-	}
-	pr_debug("ipc message sending: ENABLE_RX_TIME_SLOT\n");
-	sst_fill_header(&msg->header, IPC_IA_ENABLE_RX_TIME_SLOT, 0, 0);
-	msg->header.part.data = status;
-	sst_drv_ctx->hs_info_blk.condition = false;
-	sst_drv_ctx->hs_info_blk.ret_code = 0;
-	sst_drv_ctx->hs_info_blk.on = true;
-	spin_lock(&sst_drv_ctx->list_spin_lock);
-	list_add_tail(&msg->node,
-			&sst_drv_ctx->ipc_dispatch_list);
-	spin_unlock(&sst_drv_ctx->list_spin_lock);
-	sst_post_message(&sst_drv_ctx->ipc_post_msg_wq);
-	retval = sst_wait_interruptible_timeout(sst_drv_ctx,
-				&sst_drv_ctx->hs_info_blk, SST_BLOCK_TIMEOUT);
-	return retval;
-}
-
diff --git a/drivers/staging/intel_sst/intel_sst_stream.c b/drivers/staging/intel_sst/intel_sst_stream.c
deleted file mode 100644
index be4565e74f8c..000000000000
--- a/drivers/staging/intel_sst/intel_sst_stream.c
+++ /dev/null
@@ -1,583 +0,0 @@
-/*
- *  intel_sst_stream.c - Intel SST Driver for audio engine
- *
- *  Copyright (C) 2008-10 Intel Corp
- *  Authors:	Vinod Koul <vinod.koul@intel.com>
- *		Harsha Priya <priya.harsha@intel.com>
- *		Dharageswari R <dharageswari.r@intel.com>
- *		KP Jeeja <jeeja.kp@intel.com>
- *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; version 2 of the License.
- *
- *  This program is distributed in the hope that it will be useful, but
- *  WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This file contains the stream operations of SST driver
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/pci.h>
-#include <linux/firmware.h>
-#include <linux/sched.h>
-#include <linux/delay.h>
-#include "intel_sst_ioctl.h"
-#include "intel_sst.h"
-#include "intel_sst_fw_ipc.h"
-#include "intel_sst_common.h"
-
-/*
- * sst_check_device_type - Check the medfield device type
- *
- * @device: Device to be checked
- * @num_ch: Number of channels queried
- * @pcm_slot: slot to be enabled for this device
- *
- * This checks the deivce against the map and calculates pcm_slot value
- */
-int sst_check_device_type(u32 device, u32 num_chan, u32 *pcm_slot)
-{
-	if (device >= MAX_NUM_STREAMS_MFLD) {
-		pr_debug("device type invalid %d\n", device);
-		return -EINVAL;
-	}
-	if (sst_drv_ctx->streams[device].status == STREAM_UN_INIT) {
-		if (device == SND_SST_DEVICE_VIBRA && num_chan == 1)
-			*pcm_slot = 0x10;
-		else if (device == SND_SST_DEVICE_HAPTIC && num_chan == 1)
-			*pcm_slot = 0x20;
-		else if (device == SND_SST_DEVICE_IHF && num_chan == 1)
-			*pcm_slot = 0x04;
-		else if (device == SND_SST_DEVICE_IHF && num_chan == 2)
-			*pcm_slot = 0x0C;
-		else if (device == SND_SST_DEVICE_HEADSET && num_chan == 1)
-			*pcm_slot = 0x01;
-		else if (device == SND_SST_DEVICE_HEADSET && num_chan == 2)
-			*pcm_slot = 0x03;
-		else if (device == SND_SST_DEVICE_CAPTURE && num_chan == 1)
-			*pcm_slot = 0x01;
-		else if (device == SND_SST_DEVICE_CAPTURE && num_chan == 2)
-			*pcm_slot = 0x03;
-		else if (device == SND_SST_DEVICE_CAPTURE && num_chan == 3)
-			*pcm_slot = 0x07;
-		else if (device == SND_SST_DEVICE_CAPTURE && num_chan == 4)
-			*pcm_slot = 0x0F;
-		else if (device == SND_SST_DEVICE_CAPTURE && num_chan > 4)
-			*pcm_slot = 0x1F;
-		else {
-			pr_debug("No condition satisfied.. ret err\n");
-			return -EINVAL;
-		}
-	} else {
-		pr_debug("this stream state is not uni-init, is %d\n",
-				sst_drv_ctx->streams[device].status);
-		return -EBADRQC;
-	}
-	pr_debug("returning slot %x\n", *pcm_slot);
-	return 0;
-}
-/**
- * get_mrst_stream_id	-	gets a new stream id for use
- *
- * This functions searches the current streams and allocated an empty stream
- * lock stream_lock required to be held before calling this
- */
-static unsigned int get_mrst_stream_id(void)
-{
-	int i;
-
-	for (i = 1; i <= MAX_NUM_STREAMS_MRST; i++) {
-		if (sst_drv_ctx->streams[i].status == STREAM_UN_INIT)
-			return i;
-	}
-	pr_debug("Didn't find empty stream for mrst\n");
-	return -EBUSY;
-}
-
-/**
- * sst_alloc_stream - Send msg for a new stream ID
- *
- * @params:	stream params
- * @stream_ops:	operation of stream PB/capture
- * @codec:	codec for stream
- * @device:	device stream to be allocated for
- *
- * This function is called by any function which wants to start
- * a new stream. This also check if a stream exists which is idle
- * it initializes idle stream id to this request
- */
-int sst_alloc_stream(char *params, unsigned int stream_ops,
-	       u8 codec, unsigned int device)
-{
-	struct ipc_post *msg = NULL;
-	struct snd_sst_alloc_params alloc_param;
-	unsigned int pcm_slot = 0, num_ch;
-	int str_id;
-	struct snd_sst_stream_params *sparams;
-	struct stream_info *str_info;
-
-	pr_debug("SST DBG:entering sst_alloc_stream\n");
-	pr_debug("SST DBG:%d %d %d\n", stream_ops, codec, device);
-
-	BUG_ON(!params);
-	sparams = (struct snd_sst_stream_params *)params;
-	num_ch = sparams->uc.pcm_params.num_chan;
-	/*check the device type*/
-	if (sst_drv_ctx->pci_id == SST_MFLD_PCI_ID) {
-		if (sst_check_device_type(device, num_ch, &pcm_slot))
-			return -EINVAL;
-		mutex_lock(&sst_drv_ctx->stream_lock);
-		str_id = device;
-		mutex_unlock(&sst_drv_ctx->stream_lock);
-		pr_debug("SST_DBG: slot %x\n", pcm_slot);
-	} else {
-		mutex_lock(&sst_drv_ctx->stream_lock);
-		str_id = get_mrst_stream_id();
-		mutex_unlock(&sst_drv_ctx->stream_lock);
-		if (str_id <= 0)
-			return -EBUSY;
-	}
-	/*allocate device type context*/
-	sst_init_stream(&sst_drv_ctx->streams[str_id], codec,
-			str_id, stream_ops, pcm_slot, device);
-	/* send msg to FW to allocate a stream */
-	if (sst_create_large_msg(&msg))
-		return -ENOMEM;
-
-	sst_fill_header(&msg->header, IPC_IA_ALLOC_STREAM, 1, str_id);
-	msg->header.part.data = sizeof(alloc_param) + sizeof(u32);
-	alloc_param.str_type.codec_type = codec;
-	alloc_param.str_type.str_type = SST_STREAM_TYPE_MUSIC;
-	alloc_param.str_type.operation = stream_ops;
-	alloc_param.str_type.protected_str = 0; /* non drm */
-	alloc_param.str_type.time_slots = pcm_slot;
-	alloc_param.str_type.result = alloc_param.str_type.reserved = 0;
-	memcpy(&alloc_param.stream_params, params,
-			sizeof(struct snd_sst_stream_params));
-
-	memcpy(msg->mailbox_data, &msg->header, sizeof(u32));
-	memcpy(msg->mailbox_data + sizeof(u32), &alloc_param,
-			sizeof(alloc_param));
-	str_info = &sst_drv_ctx->streams[str_id];
-	str_info->ctrl_blk.condition = false;
-	str_info->ctrl_blk.ret_code = 0;
-	str_info->ctrl_blk.on = true;
-	spin_lock(&sst_drv_ctx->list_spin_lock);
-	list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list);
-	spin_unlock(&sst_drv_ctx->list_spin_lock);
-	sst_post_message(&sst_drv_ctx->ipc_post_msg_wq);
-	pr_debug("SST DBG:alloc stream done\n");
-	return str_id;
-}
-
-
-/*
- * sst_alloc_stream_response - process alloc reply
- *
- * @str_id:	stream id for which the stream has been allocated
- * @resp		the stream response from firware
- *
- * This function is called by firmware as a response to stream allcoation
- * request
- */
-int sst_alloc_stream_response(unsigned int str_id,
-				struct snd_sst_alloc_response *resp)
-{
-	int retval = 0;
-	struct stream_info *str_info;
-	struct snd_sst_lib_download *lib_dnld;
-
-	pr_debug("SST DEBUG: stream number given = %d\n", str_id);
-	str_info = &sst_drv_ctx->streams[str_id];
-	if (resp->str_type.result == SST_LIB_ERR_LIB_DNLD_REQUIRED) {
-		lib_dnld = kzalloc(sizeof(*lib_dnld), GFP_KERNEL);
-		memcpy(lib_dnld, &resp->lib_dnld, sizeof(*lib_dnld));
-	} else
-		lib_dnld = NULL;
-	if (str_info->ctrl_blk.on == true) {
-		str_info->ctrl_blk.on = false;
-		str_info->ctrl_blk.data = lib_dnld;
-		str_info->ctrl_blk.condition = true;
-		str_info->ctrl_blk.ret_code = resp->str_type.result;
-		pr_debug("SST DEBUG: sst_alloc_stream_response: waking up.\n");
-		wake_up(&sst_drv_ctx->wait_queue);
-	}
-	return retval;
-}
-
-
-/**
-* sst_get_fw_info - Send msg to query for firmware configurations
-* @info: out param that holds the firmare configurations
-*
-* This function is called when the firmware configurations are queiried for
-*/
-int sst_get_fw_info(struct snd_sst_fw_info *info)
-{
-	int retval = 0;
-	struct ipc_post *msg = NULL;
-
-	pr_debug("SST DBG:sst_get_fw_info called\n");
-
-	if (sst_create_short_msg(&msg)) {
-		pr_err("SST ERR: message creation failed\n");
-		return -ENOMEM;
-	}
-
-	sst_fill_header(&msg->header, IPC_IA_GET_FW_INFO, 0, 0);
-	sst_drv_ctx->fw_info_blk.condition = false;
-	sst_drv_ctx->fw_info_blk.ret_code = 0;
-	sst_drv_ctx->fw_info_blk.on = true;
-	sst_drv_ctx->fw_info_blk.data = info;
-	spin_lock(&sst_drv_ctx->list_spin_lock);
-	list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list);
-	spin_unlock(&sst_drv_ctx->list_spin_lock);
-	sst_post_message(&sst_drv_ctx->ipc_post_msg_wq);
-	retval = sst_wait_interruptible_timeout(sst_drv_ctx,
-			&sst_drv_ctx->fw_info_blk, SST_BLOCK_TIMEOUT);
-	if (retval) {
-		pr_err("SST ERR: error in fw_info = %d\n", retval);
-		retval = -EIO;
-	}
-	return retval;
-}
-
-
-/**
-* sst_pause_stream - Send msg for a pausing stream
-* @str_id:	 stream ID
-*
-* This function is called by any function which wants to pause
-* an already running stream.
-*/
-int sst_start_stream(int str_id)
-{
-	int retval = 0;
-	struct ipc_post *msg = NULL;
-	struct stream_info *str_info;
-
-	pr_debug("sst_start_stream for %d\n", str_id);
-	retval = sst_validate_strid(str_id);
-	if (retval)
-		return retval;
-	str_info = &sst_drv_ctx->streams[str_id];
-	if (str_info->status != STREAM_INIT)
-		return -EBADRQC;
-	if (sst_create_short_msg(&msg))
-		return -ENOMEM;
-
-	sst_fill_header(&msg->header, IPC_IA_START_STREAM, 0, str_id);
-	spin_lock(&sst_drv_ctx->list_spin_lock);
-	list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list);
-	spin_unlock(&sst_drv_ctx->list_spin_lock);
-	sst_post_message(&sst_drv_ctx->ipc_post_msg_wq);
-	return retval;
-}
-
-/*
- * sst_pause_stream - Send msg for a pausing stream
- * @str_id:	 stream ID
- *
- * This function is called by any function which wants to pause
- * an already running stream.
- */
-int sst_pause_stream(int str_id)
-{
-	int retval = 0;
-	struct ipc_post *msg = NULL;
-	struct stream_info *str_info;
-
-	pr_debug("SST DBG:sst_pause_stream for %d\n", str_id);
-	retval = sst_validate_strid(str_id);
-	if (retval)
-		return retval;
-	str_info = &sst_drv_ctx->streams[str_id];
-	if (str_info->status == STREAM_PAUSED)
-		return 0;
-	if (str_info->status == STREAM_RUNNING ||
-		str_info->status == STREAM_INIT) {
-		if (str_info->prev == STREAM_UN_INIT)
-			return -EBADRQC;
-		if (str_info->ctrl_blk.on == true) {
-			pr_err("SST ERR: control path is in use\n");
-			return -EINVAL;
-		}
-		if (sst_create_short_msg(&msg))
-			return -ENOMEM;
-
-		sst_fill_header(&msg->header, IPC_IA_PAUSE_STREAM, 0, str_id);
-		str_info->ctrl_blk.condition = false;
-		str_info->ctrl_blk.ret_code = 0;
-		str_info->ctrl_blk.on = true;
-		spin_lock(&sst_drv_ctx->list_spin_lock);
-		list_add_tail(&msg->node,
-				&sst_drv_ctx->ipc_dispatch_list);
-		spin_unlock(&sst_drv_ctx->list_spin_lock);
-		sst_post_message(&sst_drv_ctx->ipc_post_msg_wq);
-		retval = sst_wait_interruptible_timeout(sst_drv_ctx,
-				&str_info->ctrl_blk, SST_BLOCK_TIMEOUT);
-		if (retval == 0) {
-			str_info->prev = str_info->status;
-			str_info->status = STREAM_PAUSED;
-		} else if (retval == SST_ERR_INVALID_STREAM_ID) {
-			retval = -EINVAL;
-			mutex_lock(&sst_drv_ctx->stream_lock);
-			sst_clean_stream(str_info);
-			mutex_unlock(&sst_drv_ctx->stream_lock);
-		}
-	} else {
-		retval = -EBADRQC;
-		pr_err("SST ERR: BADQRC for stream\n");
-	}
-
-	return retval;
-}
-
-/**
- * sst_resume_stream - Send msg for resuming stream
- * @str_id:		stream ID
- *
- * This function is called by any function which wants to resume
- * an already paused stream.
- */
-int sst_resume_stream(int str_id)
-{
-	int retval = 0;
-	struct ipc_post *msg = NULL;
-	struct stream_info *str_info;
-
-	pr_debug("SST DBG:sst_resume_stream for %d\n", str_id);
-	retval = sst_validate_strid(str_id);
-	if (retval)
-		return retval;
-	str_info = &sst_drv_ctx->streams[str_id];
-	if (str_info->status == STREAM_RUNNING)
-			return 0;
-	if (str_info->status == STREAM_PAUSED) {
-		if (str_info->ctrl_blk.on == true) {
-			pr_err("SST ERR: control path in use\n");
-			return -EINVAL;
-		}
-		if (sst_create_short_msg(&msg)) {
-			pr_err("SST ERR: mem allocation failed\n");
-			return -ENOMEM;
-		}
-		sst_fill_header(&msg->header, IPC_IA_RESUME_STREAM, 0, str_id);
-		str_info->ctrl_blk.condition = false;
-		str_info->ctrl_blk.ret_code = 0;
-		str_info->ctrl_blk.on = true;
-		spin_lock(&sst_drv_ctx->list_spin_lock);
-		list_add_tail(&msg->node,
-				&sst_drv_ctx->ipc_dispatch_list);
-		spin_unlock(&sst_drv_ctx->list_spin_lock);
-		sst_post_message(&sst_drv_ctx->ipc_post_msg_wq);
-		retval = sst_wait_interruptible_timeout(sst_drv_ctx,
-				&str_info->ctrl_blk, SST_BLOCK_TIMEOUT);
-		if (!retval) {
-			if (str_info->prev == STREAM_RUNNING)
-				str_info->status = STREAM_RUNNING;
-			else
-				str_info->status = STREAM_INIT;
-			str_info->prev = STREAM_PAUSED;
-		} else if (retval == -SST_ERR_INVALID_STREAM_ID) {
-			retval = -EINVAL;
-			mutex_lock(&sst_drv_ctx->stream_lock);
-			sst_clean_stream(str_info);
-			mutex_unlock(&sst_drv_ctx->stream_lock);
-		}
-	} else {
-		retval = -EBADRQC;
-		pr_err("SST ERR: BADQRC for stream\n");
-	}
-
-	return retval;
-}
-
-
-/**
- * sst_drop_stream - Send msg for stopping stream
- * @str_id:		stream ID
- *
- * This function is called by any function which wants to stop
- * a stream.
- */
-int sst_drop_stream(int str_id)
-{
-	int retval = 0;
-	struct ipc_post *msg = NULL;
-	struct sst_stream_bufs *bufs = NULL, *_bufs;
-	struct stream_info *str_info;
-
-	pr_debug("SST DBG:sst_drop_stream for %d\n", str_id);
-	retval = sst_validate_strid(str_id);
-	if (retval)
-		return retval;
-	str_info = &sst_drv_ctx->streams[str_id];
-
-	if (str_info->status != STREAM_UN_INIT &&
-		str_info->status != STREAM_DECODE) {
-		if (str_info->ctrl_blk.on == true) {
-			pr_err("SST ERR: control path in use\n");
-			return -EINVAL;
-		}
-		if (sst_create_short_msg(&msg)) {
-			pr_err("SST ERR: mem allocation failed\n");
-			return -ENOMEM;
-		}
-		sst_fill_header(&msg->header, IPC_IA_DROP_STREAM, 0, str_id);
-		str_info->ctrl_blk.condition = false;
-		str_info->ctrl_blk.ret_code = 0;
-		str_info->ctrl_blk.on = true;
-		spin_lock(&sst_drv_ctx->list_spin_lock);
-		list_add_tail(&msg->node,
-				&sst_drv_ctx->ipc_dispatch_list);
-		spin_unlock(&sst_drv_ctx->list_spin_lock);
-		sst_post_message(&sst_drv_ctx->ipc_post_msg_wq);
-		retval = sst_wait_interruptible_timeout(sst_drv_ctx,
-				&str_info->ctrl_blk, SST_BLOCK_TIMEOUT);
-		if (!retval) {
-			pr_debug("SST DBG:drop success\n");
-			str_info->prev = STREAM_UN_INIT;
-			str_info->status = STREAM_INIT;
-			if (str_info->src != MAD_DRV) {
-				mutex_lock(&str_info->lock);
-				list_for_each_entry_safe(bufs, _bufs,
-							&str_info->bufs, node) {
-					list_del(&bufs->node);
-					kfree(bufs);
-				}
-				mutex_unlock(&str_info->lock);
-			}
-			str_info->cumm_bytes += str_info->curr_bytes;
-		} else if (retval == -SST_ERR_INVALID_STREAM_ID) {
-			retval = -EINVAL;
-			mutex_lock(&sst_drv_ctx->stream_lock);
-			sst_clean_stream(str_info);
-			mutex_unlock(&sst_drv_ctx->stream_lock);
-		}
-		if (str_info->data_blk.on == true) {
-			str_info->data_blk.condition = true;
-			str_info->data_blk.ret_code = retval;
-			wake_up(&sst_drv_ctx->wait_queue);
-		}
-	} else {
-		retval = -EBADRQC;
-		pr_err("SST ERR: BADQRC for stream\n");
-	}
-	return retval;
-}
-
-/**
-* sst_drain_stream - Send msg for draining stream
-* @str_id:		stream ID
-*
-* This function is called by any function which wants to drain
-* a stream.
-*/
-int sst_drain_stream(int str_id)
-{
-	int retval = 0;
-	struct ipc_post *msg = NULL;
-	struct stream_info *str_info;
-
-	pr_debug("SST DBG:sst_drain_stream for %d\n", str_id);
-	retval = sst_validate_strid(str_id);
-	if (retval)
-		return retval;
-	str_info = &sst_drv_ctx->streams[str_id];
-
-	if (str_info->status != STREAM_RUNNING &&
-		str_info->status != STREAM_INIT &&
-		str_info->status != STREAM_PAUSED) {
-			pr_err("SST ERR: BADQRC for stream = %d\n",
-				       str_info->status);
-			return -EBADRQC;
-	}
-
-	if (str_info->status == STREAM_INIT) {
-		if (sst_create_short_msg(&msg)) {
-			pr_err("SST ERR: mem allocation failed\n");
-			return -ENOMEM;
-		}
-		sst_fill_header(&msg->header, IPC_IA_DRAIN_STREAM, 0, str_id);
-		spin_lock(&sst_drv_ctx->list_spin_lock);
-		list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list);
-		spin_unlock(&sst_drv_ctx->list_spin_lock);
-		sst_post_message(&sst_drv_ctx->ipc_post_msg_wq);
-	} else
-		str_info->need_draining = true;
-	str_info->data_blk.condition = false;
-	str_info->data_blk.ret_code = 0;
-	str_info->data_blk.on = true;
-	retval = sst_wait_interruptible(sst_drv_ctx, &str_info->data_blk);
-	str_info->need_draining = false;
-	return retval;
-}
-
-/**
- * sst_free_stream - Frees a stream
- * @str_id:		stream ID
- *
- * This function is called by any function which wants to free
- * a stream.
- */
-int sst_free_stream(int str_id)
-{
-	int retval = 0;
-	struct ipc_post *msg = NULL;
-	struct stream_info *str_info;
-
-	pr_debug("SST DBG:sst_free_stream for %d\n", str_id);
-
-	retval = sst_validate_strid(str_id);
-	if (retval)
-		return retval;
-	str_info = &sst_drv_ctx->streams[str_id];
-
-	if (str_info->status != STREAM_UN_INIT) {
-		if (sst_create_short_msg(&msg)) {
-			pr_err("SST ERR: mem allocation failed\n");
-			return -ENOMEM;
-		}
-		sst_fill_header(&msg->header, IPC_IA_FREE_STREAM, 0, str_id);
-		spin_lock(&sst_drv_ctx->list_spin_lock);
-		list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list);
-		spin_unlock(&sst_drv_ctx->list_spin_lock);
-		sst_post_message(&sst_drv_ctx->ipc_post_msg_wq);
-		str_info->prev =  str_info->status;
-		str_info->status = STREAM_UN_INIT;
-		if (str_info->data_blk.on == true) {
-			str_info->data_blk.condition = true;
-			str_info->data_blk.ret_code = 0;
-			wake_up(&sst_drv_ctx->wait_queue);
-		}
-		str_info->data_blk.on = true;
-		str_info->data_blk.condition = false;
-		retval = sst_wait_interruptible_timeout(sst_drv_ctx,
-				&str_info->ctrl_blk, SST_BLOCK_TIMEOUT);
-		pr_debug("wait for free returned %d\n", retval);
-		msleep(100);
-		mutex_lock(&sst_drv_ctx->stream_lock);
-		sst_clean_stream(str_info);
-		mutex_unlock(&sst_drv_ctx->stream_lock);
-		pr_debug("SST DBG:Stream freed\n");
-	} else {
-		retval = -EBADRQC;
-		pr_debug("SST DBG:BADQRC for stream\n");
-	}
-
-	return retval;
-}
-
-
diff --git a/drivers/staging/intel_sst/intel_sst_stream_encoded.c b/drivers/staging/intel_sst/intel_sst_stream_encoded.c
deleted file mode 100644
index 2be58c5cba02..000000000000
--- a/drivers/staging/intel_sst/intel_sst_stream_encoded.c
+++ /dev/null
@@ -1,1273 +0,0 @@
-/*
- *  intel_sst_stream.c - Intel SST Driver for audio engine
- *
- *  Copyright (C) 2008-10 Intel Corp
- *  Authors:	Vinod Koul <vinod.koul@intel.com>
- *		Harsha Priya <priya.harsha@intel.com>
- *		Dharageswari R <dharageswari.r@intel.com>
- *		KP Jeeja <jeeja.kp@intel.com>
- *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; version 2 of the License.
- *
- *  This program is distributed in the hope that it will be useful, but
- *  WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This file contains the stream operations of SST driver
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/pci.h>
-#include <linux/syscalls.h>
-#include <linux/firmware.h>
-#include <linux/sched.h>
-#ifdef CONFIG_MRST_RAR_HANDLER
-#include <linux/rar_register.h>
-#include "../memrar/memrar.h"
-#endif
-#include "intel_sst_ioctl.h"
-#include "intel_sst.h"
-#include "intel_sst_fw_ipc.h"
-#include "intel_sst_common.h"
-/**
-* sst_get_stream_params - Send msg to query for stream parameters
-* @str_id:	stream id for which the parameters are queried for
-* @get_params:	out parameters to which the parameters are copied to
-*
-* This function is called when the stream parameters are queiried for
-*/
-int sst_get_stream_params(int str_id,
-			struct snd_sst_get_stream_params *get_params)
-{
-	int retval = 0;
-	struct ipc_post *msg = NULL;
-	struct stream_info *str_info;
-	struct snd_sst_fw_get_stream_params *fw_params;
-
-	pr_debug("get_stream for %d\n", str_id);
-	retval = sst_validate_strid(str_id);
-	if (retval)
-		return retval;
-
-	str_info = &sst_drv_ctx->streams[str_id];
-	if (str_info->status != STREAM_UN_INIT) {
-		if (str_info->ctrl_blk.on == true) {
-			pr_err("control path in use\n");
-			return -EINVAL;
-		}
-		if (sst_create_short_msg(&msg)) {
-			pr_err("message creation failed\n");
-			return -ENOMEM;
-		}
-		fw_params = kzalloc(sizeof(*fw_params), GFP_ATOMIC);
-		if (!fw_params) {
-			pr_err("mem allocation failed\n");
-			kfree(msg);
-			return -ENOMEM;
-		}
-
-		sst_fill_header(&msg->header, IPC_IA_GET_STREAM_PARAMS,
-					0, str_id);
-		str_info->ctrl_blk.condition = false;
-		str_info->ctrl_blk.ret_code = 0;
-		str_info->ctrl_blk.on = true;
-		str_info->ctrl_blk.data = (void *) fw_params;
-		spin_lock(&sst_drv_ctx->list_spin_lock);
-		list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list);
-		spin_unlock(&sst_drv_ctx->list_spin_lock);
-		sst_post_message(&sst_drv_ctx->ipc_post_msg_wq);
-		retval = sst_wait_interruptible_timeout(sst_drv_ctx,
-				&str_info->ctrl_blk, SST_BLOCK_TIMEOUT);
-		if (retval) {
-			get_params->codec_params.result = retval;
-			kfree(fw_params);
-			return -EIO;
-		}
-		memcpy(&get_params->pcm_params, &fw_params->pcm_params,
-				sizeof(fw_params->pcm_params));
-		memcpy(&get_params->codec_params.sparams,
-				&fw_params->codec_params,
-				sizeof(fw_params->codec_params));
-		get_params->codec_params.result = 0;
-		get_params->codec_params.stream_id = str_id;
-		get_params->codec_params.codec = str_info->codec;
-		get_params->codec_params.ops = str_info->ops;
-		get_params->codec_params.stream_type = str_info->str_type;
-		kfree(fw_params);
-	} else {
-		pr_debug("Stream is not in the init state\n");
-	}
-	return retval;
-}
-
-/**
- * sst_set_stream_param - Send msg for setting stream parameters
- *
- * @str_id: stream id
- * @str_param: stream params
- *
- * This function sets stream params during runtime
- */
-int sst_set_stream_param(int str_id, struct snd_sst_params *str_param)
-{
-	int retval = 0;
-	struct ipc_post *msg = NULL;
-	struct stream_info *str_info;
-
-	BUG_ON(!str_param);
-	if (sst_drv_ctx->streams[str_id].ops != str_param->ops) {
-		pr_err("Invalid operation\n");
-		return -EINVAL;
-	}
-	retval = sst_validate_strid(str_id);
-	if (retval)
-		return retval;
-	pr_debug("set_stream for %d\n", str_id);
-	str_info =  &sst_drv_ctx->streams[str_id];
-	if (sst_drv_ctx->streams[str_id].status == STREAM_INIT) {
-		if (str_info->ctrl_blk.on == true) {
-			pr_err("control path in use\n");
-			return -EAGAIN;
-		}
-		if (sst_create_large_msg(&msg))
-			return -ENOMEM;
-
-		sst_fill_header(&msg->header,
-				IPC_IA_SET_STREAM_PARAMS, 1, str_id);
-		str_info->ctrl_blk.condition = false;
-		str_info->ctrl_blk.ret_code = 0;
-		str_info->ctrl_blk.on = true;
-		msg->header.part.data = sizeof(u32) +
-				sizeof(str_param->sparams);
-		memcpy(msg->mailbox_data, &msg->header, sizeof(u32));
-		memcpy(msg->mailbox_data + sizeof(u32), &str_param->sparams,
-				sizeof(str_param->sparams));
-		spin_lock(&sst_drv_ctx->list_spin_lock);
-		list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list);
-		spin_unlock(&sst_drv_ctx->list_spin_lock);
-		sst_post_message(&sst_drv_ctx->ipc_post_msg_wq);
-		retval = sst_wait_interruptible_timeout(sst_drv_ctx,
-				&str_info->ctrl_blk, SST_BLOCK_TIMEOUT);
-		if (retval < 0) {
-			retval = -EIO;
-			sst_clean_stream(str_info);
-		}
-	} else {
-		retval = -EBADRQC;
-		pr_err("BADQRC for stream\n");
-	}
-	return retval;
-}
-
-/**
-* sst_get_vol - This function allows to get the premix gain or gain of a stream
-*
-* @get_vol: this is an output param through which the volume
-*	structure is passed back to user
-*
-* This function is called when the premix gain or stream gain is queried for
-*/
-int sst_get_vol(struct snd_sst_vol *get_vol)
-{
-	int retval = 0;
-	struct ipc_post *msg = NULL;
-	struct snd_sst_vol *fw_get_vol;
-	int str_id = get_vol->stream_id;
-
-	pr_debug("get vol called\n");
-
-	if (sst_create_short_msg(&msg))
-		return -ENOMEM;
-
-	sst_fill_header(&msg->header,
-				IPC_IA_GET_STREAM_VOL, 0, str_id);
-	sst_drv_ctx->vol_info_blk.condition = false;
-	sst_drv_ctx->vol_info_blk.ret_code = 0;
-	sst_drv_ctx->vol_info_blk.on = true;
-	fw_get_vol = kzalloc(sizeof(*fw_get_vol), GFP_ATOMIC);
-	if (!fw_get_vol) {
-		pr_err("mem allocation failed\n");
-		kfree(msg);
-		return -ENOMEM;
-	}
-	sst_drv_ctx->vol_info_blk.data = (void *)fw_get_vol;
-	spin_lock(&sst_drv_ctx->list_spin_lock);
-	list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list);
-	spin_unlock(&sst_drv_ctx->list_spin_lock);
-	sst_post_message(&sst_drv_ctx->ipc_post_msg_wq);
-	retval = sst_wait_interruptible_timeout(sst_drv_ctx,
-			&sst_drv_ctx->vol_info_blk, SST_BLOCK_TIMEOUT);
-	if (retval)
-		retval = -EIO;
-	else {
-		pr_debug("stream id %d\n", fw_get_vol->stream_id);
-		pr_debug("volume %d\n", fw_get_vol->volume);
-		pr_debug("ramp duration %d\n", fw_get_vol->ramp_duration);
-		pr_debug("ramp_type %d\n", fw_get_vol->ramp_type);
-		memcpy(get_vol, fw_get_vol, sizeof(*fw_get_vol));
-	}
-	return retval;
-}
-
-/**
-* sst_set_vol - This function allows to set the premix gain or gain of a stream
-*
-* @set_vol:	this holds the volume structure that needs to be set
-*
-* This function is called when premix gain or stream gain is requested to be set
-*/
-int sst_set_vol(struct snd_sst_vol *set_vol)
-{
-
-	int retval = 0;
-	struct ipc_post *msg = NULL;
-
-	pr_debug("set vol called\n");
-
-	if (sst_create_large_msg(&msg)) {
-		pr_err("message creation failed\n");
-		return -ENOMEM;
-	}
-	sst_fill_header(&msg->header, IPC_IA_SET_STREAM_VOL, 1,
-				set_vol->stream_id);
-
-	msg->header.part.data = sizeof(u32) + sizeof(*set_vol);
-	memcpy(msg->mailbox_data, &msg->header, sizeof(u32));
-	memcpy(msg->mailbox_data + sizeof(u32), set_vol, sizeof(*set_vol));
-	sst_drv_ctx->vol_info_blk.condition = false;
-	sst_drv_ctx->vol_info_blk.ret_code = 0;
-	sst_drv_ctx->vol_info_blk.on = true;
-	sst_drv_ctx->vol_info_blk.data = set_vol;
-	spin_lock(&sst_drv_ctx->list_spin_lock);
-	list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list);
-	spin_unlock(&sst_drv_ctx->list_spin_lock);
-	sst_post_message(&sst_drv_ctx->ipc_post_msg_wq);
-	retval = sst_wait_interruptible_timeout(sst_drv_ctx,
-			&sst_drv_ctx->vol_info_blk, SST_BLOCK_TIMEOUT);
-	if (retval) {
-		pr_err("error in set_vol = %d\n", retval);
-		retval = -EIO;
-	}
-	return retval;
-}
-
-/**
-* sst_set_mute - This function sets premix mute or soft mute of a stream
-*
-* @set_mute:	this holds the mute structure that needs to be set
-*
-* This function is called when premix mute or stream mute requested to be set
-*/
-int sst_set_mute(struct snd_sst_mute *set_mute)
-{
-
-	int retval = 0;
-	struct ipc_post *msg = NULL;
-
-	pr_debug("set mute called\n");
-
-	if (sst_create_large_msg(&msg)) {
-		pr_err("message creation failed\n");
-		return -ENOMEM;
-	}
-	sst_fill_header(&msg->header, IPC_IA_SET_STREAM_MUTE, 1,
-				set_mute->stream_id);
-	sst_drv_ctx->mute_info_blk.condition = false;
-	sst_drv_ctx->mute_info_blk.ret_code = 0;
-	sst_drv_ctx->mute_info_blk.on = true;
-	sst_drv_ctx->mute_info_blk.data = set_mute;
-
-	msg->header.part.data = sizeof(u32) + sizeof(*set_mute);
-	memcpy(msg->mailbox_data, &msg->header, sizeof(u32));
-	memcpy(msg->mailbox_data + sizeof(u32), set_mute,
-			sizeof(*set_mute));
-	spin_lock(&sst_drv_ctx->list_spin_lock);
-	list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list);
-	spin_unlock(&sst_drv_ctx->list_spin_lock);
-	sst_post_message(&sst_drv_ctx->ipc_post_msg_wq);
-	retval = sst_wait_interruptible_timeout(sst_drv_ctx,
-			&sst_drv_ctx->mute_info_blk, SST_BLOCK_TIMEOUT);
-	if (retval) {
-		pr_err("error in set_mute = %d\n", retval);
-		retval = -EIO;
-	}
-	return retval;
-}
-
-int sst_prepare_target(struct snd_sst_slot_info *slot)
-{
-	if (slot->target_device == SND_SST_TARGET_PMIC
-		&& slot->device_instance == 1) {
-			/*music mode*/
-			if (sst_drv_ctx->pmic_port_instance == 0)
-				sst_drv_ctx->scard_ops->set_voice_port(
-					DEACTIVATE);
-	} else if ((slot->target_device == SND_SST_TARGET_PMIC ||
-			slot->target_device == SND_SST_TARGET_MODEM) &&
-			slot->device_instance == 0) {
-				/*voip mode where pcm0 is active*/
-				if (sst_drv_ctx->pmic_port_instance == 1)
-					sst_drv_ctx->scard_ops->set_audio_port(
-						DEACTIVATE);
-	}
-	return 0;
-}
-
-int sst_activate_target(struct snd_sst_slot_info *slot)
-{
-	if (slot->target_device == SND_SST_TARGET_PMIC &&
-		slot->device_instance == 1) {
-			/*music mode*/
-			sst_drv_ctx->pmic_port_instance = 1;
-			sst_drv_ctx->scard_ops->set_audio_port(ACTIVATE);
-			sst_drv_ctx->scard_ops->set_pcm_audio_params(
-				slot->pcm_params.sfreq,
-				slot->pcm_params.pcm_wd_sz,
-				slot->pcm_params.num_chan);
-			if (sst_drv_ctx->pb_streams)
-				sst_drv_ctx->scard_ops->power_up_pmic_pb(1);
-			if (sst_drv_ctx->cp_streams)
-				sst_drv_ctx->scard_ops->power_up_pmic_cp(1);
-	} else if ((slot->target_device == SND_SST_TARGET_PMIC ||
-			slot->target_device == SND_SST_TARGET_MODEM) &&
-			slot->device_instance == 0) {
-				/*voip mode where pcm0 is active*/
-				sst_drv_ctx->pmic_port_instance = 0;
-				sst_drv_ctx->scard_ops->set_voice_port(
-					ACTIVATE);
-				sst_drv_ctx->scard_ops->power_up_pmic_pb(0);
-				/*sst_drv_ctx->scard_ops->power_up_pmic_cp(0);*/
-	}
-	return 0;
-}
-
-int sst_parse_target(struct snd_sst_slot_info *slot)
-{
-	int retval = 0;
-
-	if (slot->action == SND_SST_PORT_ACTIVATE &&
-		slot->device_type == SND_SST_DEVICE_PCM) {
-			retval = sst_activate_target(slot);
-			if (retval)
-				pr_err("SST_Activate_target_fail\n");
-			else
-				pr_err("SST_Activate_target_pass\n");
-	} else if (slot->action == SND_SST_PORT_PREPARE &&
-			slot->device_type == SND_SST_DEVICE_PCM) {
-				retval = sst_prepare_target(slot);
-			if (retval)
-				pr_err("SST_prepare_target_fail\n");
-			else
-				pr_err("SST_prepare_target_pass\n");
-	} else {
-		pr_err("slot_action : %d, device_type: %d\n",
-				slot->action, slot->device_type);
-	}
-	return retval;
-}
-
-int sst_send_target(struct snd_sst_target_device *target)
-{
-	int retval;
-	struct ipc_post *msg;
-
-	if (sst_create_large_msg(&msg)) {
-		pr_err("message creation failed\n");
-		return -ENOMEM;
-	}
-	sst_fill_header(&msg->header, IPC_IA_TARGET_DEV_SELECT, 1, 0);
-	sst_drv_ctx->tgt_dev_blk.condition = false;
-	sst_drv_ctx->tgt_dev_blk.ret_code = 0;
-	sst_drv_ctx->tgt_dev_blk.on = true;
-
-	msg->header.part.data = sizeof(u32) + sizeof(*target);
-	memcpy(msg->mailbox_data, &msg->header, sizeof(u32));
-	memcpy(msg->mailbox_data + sizeof(u32), target,
-			sizeof(*target));
-	spin_lock(&sst_drv_ctx->list_spin_lock);
-	list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list);
-	spin_unlock(&sst_drv_ctx->list_spin_lock);
-	sst_post_message(&sst_drv_ctx->ipc_post_msg_wq);
-	pr_debug("message sent- waiting\n");
-	retval = sst_wait_interruptible_timeout(sst_drv_ctx,
-			&sst_drv_ctx->tgt_dev_blk, TARGET_DEV_BLOCK_TIMEOUT);
-	if (retval)
-		pr_err("target device ipc failed = 0x%x\n", retval);
-	return retval;
-
-}
-
-int sst_target_device_validate(struct snd_sst_target_device *target)
-{
-	int retval = 0;
-       int i;
-
-	for (i = 0; i < SST_MAX_TARGET_DEVICES; i++) {
-		if (target->devices[i].device_type == SND_SST_DEVICE_PCM) {
-			/*pcm device, check params*/
-			if (target->devices[i].device_instance == 1) {
-				if ((target->devices[i].device_mode !=
-				SND_SST_DEV_MODE_PCM_MODE4_I2S) &&
-				(target->devices[i].device_mode !=
-				SND_SST_DEV_MODE_PCM_MODE4_RIGHT_JUSTIFIED)
-				&& (target->devices[i].device_mode !=
-				SND_SST_DEV_MODE_PCM_MODE1))
-					goto err;
-			} else if (target->devices[i].device_instance == 0) {
-				if ((target->devices[i].device_mode !=
-						SND_SST_DEV_MODE_PCM_MODE2)
-					&& (target->devices[i].device_mode !=
-						SND_SST_DEV_MODE_PCM_MODE4_I2S)
-					&& (target->devices[i].device_mode !=
-						SND_SST_DEV_MODE_PCM_MODE1))
-					goto err;
-				if (target->devices[i].pcm_params.sfreq != 8000
-				|| target->devices[i].pcm_params.num_chan != 1
-				|| target->devices[i].pcm_params.pcm_wd_sz !=
-									16)
-					goto err;
-			} else {
-err:
-				pr_err("i/p params incorrect\n");
-				return -EINVAL;
-			}
-		}
-	}
-    return retval;
-}
-
-/**
- * sst_target_device_select - This function sets the target device configurations
- *
- * @target: this parameter holds the configurations to be set
- *
- * This function is called when the user layer wants to change the target
- * device's configurations
- */
-
-int sst_target_device_select(struct snd_sst_target_device *target)
-{
-	int retval, i, prepare_count = 0;
-
-	pr_debug("Target Device Select\n");
-
-	if (target->device_route < 0 || target->device_route > 2) {
-		pr_err("device route is invalid\n");
-		return -EINVAL;
-	}
-
-	if (target->device_route != 0) {
-		pr_err("Unsupported config\n");
-		return -EIO;
-	}
-	retval = sst_target_device_validate(target);
-	if (retval)
-		return retval;
-
-	retval = sst_send_target(target);
-	if (retval)
-		return retval;
-	for (i = 0; i < SST_MAX_TARGET_DEVICES; i++) {
-		if (target->devices[i].action == SND_SST_PORT_ACTIVATE) {
-			pr_debug("activate called in %d\n", i);
-			retval = sst_parse_target(&target->devices[i]);
-			if (retval)
-				return retval;
-		} else if (target->devices[i].action == SND_SST_PORT_PREPARE) {
-			pr_debug("PREPARE in %d, Forwarding\n", i);
-			retval = sst_parse_target(&target->devices[i]);
-			if (retval) {
-				pr_err("Parse Target fail %d\n", retval);
-				return retval;
-			}
-			pr_debug("Parse Target successful %d\n", retval);
-			if (target->devices[i].device_type ==
-						SND_SST_DEVICE_PCM)
-				prepare_count++;
-		}
-	}
-	if (target->devices[0].action == SND_SST_PORT_PREPARE &&
-		prepare_count == 0)
-			sst_drv_ctx->scard_ops->power_down_pmic();
-
-	return retval;
-}
-#ifdef CONFIG_MRST_RAR_HANDLER
-/*This function gets the physical address of the secure memory from the handle*/
-static inline int sst_get_RAR(struct RAR_buffer *buffers, int count)
-{
-	int retval = 0, rar_status = 0;
-
-	rar_status = rar_handle_to_bus(buffers, count);
-
-	if (count != rar_status) {
-		pr_err("The rar CALL Failed");
-		retval = -EIO;
-	}
-	if (buffers->info.type != RAR_TYPE_AUDIO) {
-		pr_err("Invalid RAR type\n");
-		return -EINVAL;
-	}
-	return retval;
-}
-
-#endif
-
-/* This function creates the scatter gather list to be sent to firmware to
-capture/playback data*/
-static int sst_create_sg_list(struct stream_info *stream,
-		struct sst_frame_info *sg_list)
-{
-	struct sst_stream_bufs *kbufs = NULL;
-#ifdef CONFIG_MRST_RAR_HANDLER
-	struct RAR_buffer rar_buffers;
-	int retval = 0;
-#endif
-	int i = 0;
-	list_for_each_entry(kbufs, &stream->bufs, node) {
-		if (kbufs->in_use == false) {
-#ifdef CONFIG_MRST_RAR_HANDLER
-			if (stream->ops == STREAM_OPS_PLAYBACK_DRM) {
-				pr_debug("DRM playback handling\n");
-				rar_buffers.info.handle = (__u32)kbufs->addr;
-				rar_buffers.info.size = kbufs->size;
-				pr_debug("rar handle 0x%x size=0x%x\n",
-					rar_buffers.info.handle,
-					rar_buffers.info.size);
-				retval =  sst_get_RAR(&rar_buffers, 1);
-
-				if (retval)
-					return retval;
-				sg_list->addr[i].addr = rar_buffers.bus_address;
-				/* rar_buffers.info.size; */
-				sg_list->addr[i].size = (__u32)kbufs->size;
-				pr_debug("phyaddr[%d] 0x%x Size:0x%x\n"
-					, i, sg_list->addr[i].addr,
-					sg_list->addr[i].size);
-			}
-#endif
-			if (stream->ops != STREAM_OPS_PLAYBACK_DRM) {
-				sg_list->addr[i].addr =
-					virt_to_phys((void *)
-						kbufs->addr + kbufs->offset);
-				sg_list->addr[i].size = kbufs->size;
-				pr_debug("phyaddr[%d]:0x%x Size:0x%x\n"
-				, i , sg_list->addr[i].addr, kbufs->size);
-			}
-			stream->curr_bytes += sg_list->addr[i].size;
-			kbufs->in_use = true;
-			i++;
-		}
-		if (i >= MAX_NUM_SCATTER_BUFFERS)
-			break;
-	}
-
-	sg_list->num_entries = i;
-	pr_debug("sg list entries = %d\n", sg_list->num_entries);
-	return i;
-}
-
-
-/**
- * sst_play_frame - Send msg for sending stream frames
- *
- * @str_id:	ID of stream
- *
- * This function is called to send data to be played out
- * to the firmware
- */
-int sst_play_frame(int str_id)
-{
-	int i = 0, retval = 0;
-	struct ipc_post *msg = NULL;
-	struct sst_frame_info sg_list = {0};
-	struct sst_stream_bufs *kbufs = NULL, *_kbufs;
-	struct stream_info *stream;
-
-	pr_debug("play frame for %d\n", str_id);
-	retval = sst_validate_strid(str_id);
-	if (retval)
-		return retval;
-
-	stream = &sst_drv_ctx->streams[str_id];
-	/* clear prev sent buffers */
-	list_for_each_entry_safe(kbufs, _kbufs, &stream->bufs, node) {
-		if (kbufs->in_use == true) {
-			spin_lock(&stream->pcm_lock);
-			list_del(&kbufs->node);
-			spin_unlock(&stream->pcm_lock);
-			kfree(kbufs);
-		}
-	}
-	/* update bytes sent */
-	stream->cumm_bytes += stream->curr_bytes;
-	stream->curr_bytes = 0;
-	if (list_empty(&stream->bufs)) {
-		/* no user buffer available */
-		pr_debug("Null buffer stream status %d\n", stream->status);
-		stream->prev = stream->status;
-		stream->status = STREAM_INIT;
-		pr_debug("new stream status = %d\n", stream->status);
-		if (stream->need_draining == true) {
-			pr_debug("draining stream\n");
-			if (sst_create_short_msg(&msg)) {
-				pr_err("mem allocation failed\n");
-				return -ENOMEM;
-			}
-			sst_fill_header(&msg->header, IPC_IA_DRAIN_STREAM,
-						0, str_id);
-			spin_lock(&sst_drv_ctx->list_spin_lock);
-			list_add_tail(&msg->node,
-					&sst_drv_ctx->ipc_dispatch_list);
-			spin_unlock(&sst_drv_ctx->list_spin_lock);
-			sst_post_message(&sst_drv_ctx->ipc_post_msg_wq);
-		} else if (stream->data_blk.on == true) {
-			pr_debug("user list empty.. wake\n");
-			/* unblock */
-			stream->data_blk.ret_code = 0;
-			stream->data_blk.condition = true;
-			stream->data_blk.on = false;
-			wake_up(&sst_drv_ctx->wait_queue);
-		}
-		return 0;
-	}
-
-	/* create list */
-	i = sst_create_sg_list(stream, &sg_list);
-
-	/* post msg */
-	if (sst_create_large_msg(&msg))
-		return -ENOMEM;
-
-	sst_fill_header(&msg->header, IPC_IA_PLAY_FRAMES, 1, str_id);
-	msg->header.part.data = sizeof(u32) + sizeof(sg_list);
-	memcpy(msg->mailbox_data, &msg->header, sizeof(u32));
-	memcpy(msg->mailbox_data + sizeof(u32), &sg_list, sizeof(sg_list));
-	spin_lock(&sst_drv_ctx->list_spin_lock);
-	list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list);
-	spin_unlock(&sst_drv_ctx->list_spin_lock);
-	sst_post_message(&sst_drv_ctx->ipc_post_msg_wq);
-	return 0;
-
-}
-
-/**
- * sst_capture_frame - Send msg for sending stream frames
- *
- * @str_id:	ID of stream
- *
- * This function is called to capture data from the firmware
- */
-int sst_capture_frame(int str_id)
-{
-	int i = 0, retval = 0;
-	struct ipc_post *msg = NULL;
-	struct sst_frame_info sg_list = {0};
-	struct sst_stream_bufs *kbufs = NULL, *_kbufs;
-	struct stream_info *stream;
-
-
-	pr_debug("capture frame for %d\n", str_id);
-	retval = sst_validate_strid(str_id);
-	if (retval)
-		return retval;
-	stream = &sst_drv_ctx->streams[str_id];
-	/* clear prev sent buffers */
-	list_for_each_entry_safe(kbufs, _kbufs, &stream->bufs, node) {
-		if (kbufs->in_use == true) {
-			list_del(&kbufs->node);
-			kfree(kbufs);
-			pr_debug("del node\n");
-		}
-	}
-	if (list_empty(&stream->bufs)) {
-		/* no user buffer available */
-		pr_debug("Null buffer!!!!stream status %d\n",
-			       stream->status);
-		stream->prev = stream->status;
-		stream->status = STREAM_INIT;
-		pr_debug("new stream status = %d\n",
-			       stream->status);
-		if (stream->data_blk.on == true) {
-			pr_debug("user list empty.. wake\n");
-			/* unblock */
-			stream->data_blk.ret_code = 0;
-			stream->data_blk.condition = true;
-			stream->data_blk.on = false;
-			wake_up(&sst_drv_ctx->wait_queue);
-
-		}
-		return 0;
-	}
-	/* create new sg list */
-	i = sst_create_sg_list(stream, &sg_list);
-
-	/* post msg */
-	if (sst_create_large_msg(&msg))
-		return -ENOMEM;
-
-	sst_fill_header(&msg->header, IPC_IA_CAPT_FRAMES, 1, str_id);
-	msg->header.part.data = sizeof(u32) + sizeof(sg_list);
-	memcpy(msg->mailbox_data, &msg->header, sizeof(u32));
-	memcpy(msg->mailbox_data + sizeof(u32), &sg_list, sizeof(sg_list));
-	spin_lock(&sst_drv_ctx->list_spin_lock);
-	list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list);
-	spin_unlock(&sst_drv_ctx->list_spin_lock);
-	sst_post_message(&sst_drv_ctx->ipc_post_msg_wq);
-
-
-	/*update bytes recevied*/
-	stream->cumm_bytes += stream->curr_bytes;
-	stream->curr_bytes = 0;
-
-    pr_debug("Cum bytes  = %d\n", stream->cumm_bytes);
-	return 0;
-}
-
-/*This function is used to calculate the minimum size of input buffers given*/
-static unsigned int calculate_min_size(struct snd_sst_buffs *bufs)
-{
-	int i, min_val = bufs->buff_entry[0].size;
-	for (i = 1 ; i < bufs->entries; i++) {
-		if (bufs->buff_entry[i].size < min_val)
-			min_val = bufs->buff_entry[i].size;
-	}
-	pr_debug("min_val = %d\n", min_val);
-	return min_val;
-}
-
-static unsigned int calculate_max_size(struct snd_sst_buffs *bufs)
-{
-	int i, max_val = bufs->buff_entry[0].size;
-	for (i = 1 ; i < bufs->entries; i++) {
-		if (bufs->buff_entry[i].size > max_val)
-			max_val = bufs->buff_entry[i].size;
-	}
-	pr_debug("max_val = %d\n", max_val);
-	return max_val;
-}
-
-/*This function is used to allocate input and output buffers to be sent to
-the firmware that will take encoded data and return decoded data*/
-static int sst_allocate_decode_buf(struct stream_info *str_info,
-				struct snd_sst_dbufs *dbufs,
-				unsigned int cum_input_given,
-				unsigned int cum_output_given)
-{
-#ifdef CONFIG_MRST_RAR_HANDLER
-	if (str_info->ops == STREAM_OPS_PLAYBACK_DRM) {
-
-		if (dbufs->ibufs->type == SST_BUF_RAR  &&
-			dbufs->obufs->type == SST_BUF_RAR) {
-			if (dbufs->ibufs->entries == dbufs->obufs->entries)
-				return 0;
-			else {
-				pr_err("RAR entries dont match\n");
-				 return -EINVAL;
-			}
-		} else
-			str_info->decode_osize = cum_output_given;
-		return 0;
-
-	}
-#endif
-	if (!str_info->decode_ibuf) {
-		pr_debug("no i/p buffers, trying full size\n");
-		str_info->decode_isize = cum_input_given;
-		str_info->decode_ibuf = kzalloc(str_info->decode_isize,
-						GFP_KERNEL);
-		str_info->idecode_alloc = str_info->decode_isize;
-	}
-	if (!str_info->decode_ibuf) {
-		pr_debug("buff alloc failed, try max size\n");
-		str_info->decode_isize = calculate_max_size(dbufs->ibufs);
-		str_info->decode_ibuf = kzalloc(
-				str_info->decode_isize, GFP_KERNEL);
-		str_info->idecode_alloc = str_info->decode_isize;
-	}
-	if (!str_info->decode_ibuf) {
-		pr_debug("buff alloc failed, try min size\n");
-		str_info->decode_isize = calculate_min_size(dbufs->ibufs);
-		str_info->decode_ibuf = kzalloc(str_info->decode_isize,
-						GFP_KERNEL);
-		if (!str_info->decode_ibuf) {
-			pr_err("mem allocation failed\n");
-			return -ENOMEM;
-		}
-		str_info->idecode_alloc = str_info->decode_isize;
-	}
-	str_info->decode_osize = cum_output_given;
-	if (str_info->decode_osize > sst_drv_ctx->mmap_len)
-		str_info->decode_osize = sst_drv_ctx->mmap_len;
-	return 0;
-}
-
-/*This function is used to send the message to firmware to decode the data*/
-static int sst_send_decode_mess(int str_id, struct stream_info *str_info,
-				struct snd_sst_decode_info *dec_info)
-{
-	struct ipc_post *msg = NULL;
-	int retval = 0;
-
-	pr_debug("SST DBG:sst_set_mute:called\n");
-
-	if (str_info->decode_ibuf_type == SST_BUF_RAR) {
-#ifdef CONFIG_MRST_RAR_HANDLER
-			dec_info->frames_in.addr[0].addr =
-				(unsigned long)str_info->decode_ibuf;
-			dec_info->frames_in.addr[0].size =
-							str_info->decode_isize;
-#endif
-
-	} else {
-		dec_info->frames_in.addr[0].addr = virt_to_phys((void *)
-					str_info->decode_ibuf);
-		dec_info->frames_in.addr[0].size = str_info->decode_isize;
-	}
-
-
-	if (str_info->decode_obuf_type == SST_BUF_RAR) {
-#ifdef CONFIG_MRST_RAR_HANDLER
-		dec_info->frames_out.addr[0].addr =
-				(unsigned long)str_info->decode_obuf;
-		dec_info->frames_out.addr[0].size = str_info->decode_osize;
-#endif
-
-	} else {
-		dec_info->frames_out.addr[0].addr = virt_to_phys((void *)
-						str_info->decode_obuf) ;
-		dec_info->frames_out.addr[0].size = str_info->decode_osize;
-	}
-
-	dec_info->frames_in.num_entries = 1;
-	dec_info->frames_out.num_entries = 1;
-	dec_info->frames_in.rsrvd = 0;
-	dec_info->frames_out.rsrvd = 0;
-	dec_info->input_bytes_consumed = 0;
-	dec_info->output_bytes_produced = 0;
-	if (sst_create_large_msg(&msg)) {
-		pr_err("message creation failed\n");
-		return -ENOMEM;
-	}
-
-	sst_fill_header(&msg->header, IPC_IA_DECODE_FRAMES, 1, str_id);
-	msg->header.part.data = sizeof(u32) + sizeof(*dec_info);
-	memcpy(msg->mailbox_data, &msg->header, sizeof(u32));
-	memcpy(msg->mailbox_data + sizeof(u32), dec_info,
-			sizeof(*dec_info));
-	spin_lock(&sst_drv_ctx->list_spin_lock);
-	list_add_tail(&msg->node, &sst_drv_ctx->ipc_dispatch_list);
-	spin_unlock(&sst_drv_ctx->list_spin_lock);
-	str_info->data_blk.condition = false;
-	str_info->data_blk.ret_code = 0;
-	str_info->data_blk.on = true;
-	str_info->data_blk.data = dec_info;
-	sst_post_message(&sst_drv_ctx->ipc_post_msg_wq);
-	retval = sst_wait_interruptible(sst_drv_ctx, &str_info->data_blk);
-	return retval;
-}
-
-#ifdef CONFIG_MRST_RAR_HANDLER
-static int sst_prepare_input_buffers_rar(struct stream_info *str_info,
-			struct snd_sst_dbufs *dbufs,
-			int *input_index, int *in_copied,
-			int *input_index_valid_size, int *new_entry_flag)
-{
-	int retval = 0, i;
-
-	if (str_info->ops == STREAM_OPS_PLAYBACK_DRM) {
-		struct RAR_buffer rar_buffers;
-		__u32 info;
-		retval = copy_from_user((void *) &info,
-				dbufs->ibufs->buff_entry[i].buffer,
-				sizeof(__u32));
-		if (retval) {
-			pr_err("cpy from user fail\n");
-			return -EAGAIN;
-		}
-		rar_buffers.info.type = dbufs->ibufs->type;
-		rar_buffers.info.size = dbufs->ibufs->buff_entry[i].size;
-		rar_buffers.info.handle =  info;
-		pr_debug("rar in DnR(input buffer function)=0x%x size=0x%x",
-				rar_buffers.info.handle,
-				rar_buffers.info.size);
-		retval =  sst_get_RAR(&rar_buffers, 1);
-		if (retval) {
-			pr_debug("SST ERR: RAR API failed\n");
-			return retval;
-		}
-		str_info->decode_ibuf =
-		(void *) ((unsigned long) rar_buffers.bus_address);
-		pr_debug("RAR buf addr in DnR (input buffer function)0x%lu",
-				 (unsigned long) str_info->decode_ibuf);
-		pr_debug("rar in DnR decode function/output b_add rar =0x%lu",
-				(unsigned long) rar_buffers.bus_address);
-		*input_index = i + 1;
-		str_info->decode_isize = dbufs->ibufs->buff_entry[i].size;
-		str_info->decode_ibuf_type = dbufs->ibufs->type;
-		*in_copied = str_info->decode_isize;
-	}
-	return retval;
-}
-#endif
-/*This function is used to prepare the kernel input buffers with contents
-before sending for decode*/
-static int sst_prepare_input_buffers(struct stream_info *str_info,
-			struct snd_sst_dbufs *dbufs,
-			int *input_index, int *in_copied,
-			int *input_index_valid_size, int *new_entry_flag)
-{
-	int i, cpy_size, retval = 0;
-
-	pr_debug("input_index = %d, input entries = %d\n",
-			 *input_index, dbufs->ibufs->entries);
-	for (i = *input_index; i < dbufs->ibufs->entries; i++) {
-#ifdef CONFIG_MRST_RAR_HANDLER
-		retval = sst_prepare_input_buffers_rar(str_info,
-			dbufs, input_index, in_copied,
-				input_index_valid_size, new_entry_flag);
-		if (retval) {
-			pr_err("In prepare input buffers for RAR\n");
-			return -EIO;
-		}
-#endif
-		*input_index = i;
-		if (*input_index_valid_size == 0)
-			*input_index_valid_size =
-				dbufs->ibufs->buff_entry[i].size;
-		pr_debug("inout addr = %p, size = %d\n",
-			dbufs->ibufs->buff_entry[i].buffer,
-			*input_index_valid_size);
-		pr_debug("decode_isize = %d, in_copied %d\n",
-			str_info->decode_isize, *in_copied);
-		if (*input_index_valid_size <=
-					(str_info->decode_isize - *in_copied))
-			cpy_size = *input_index_valid_size;
-		else
-			cpy_size = str_info->decode_isize - *in_copied;
-
-		pr_debug("cpy size = %d\n", cpy_size);
-		if (!dbufs->ibufs->buff_entry[i].buffer) {
-			pr_err("i/p buffer is null\n");
-			return -EINVAL;
-		}
-		pr_debug("Try copy To %p, From %p, size %d\n",
-				str_info->decode_ibuf + *in_copied,
-				dbufs->ibufs->buff_entry[i].buffer, cpy_size);
-
-		retval =
-		copy_from_user((void *)(str_info->decode_ibuf + *in_copied),
-				(void *) dbufs->ibufs->buff_entry[i].buffer,
-				cpy_size);
-		if (retval) {
-			pr_err("copy from user failed\n");
-			return -EIO;
-		}
-		*in_copied += cpy_size;
-		*input_index_valid_size -= cpy_size;
-		pr_debug("in buff size = %d, in_copied = %d\n",
-			*input_index_valid_size, *in_copied);
-		if (*input_index_valid_size != 0) {
-			pr_debug("more input buffers left\n");
-			dbufs->ibufs->buff_entry[i].buffer += cpy_size;
-			break;
-		}
-		if (*in_copied == str_info->decode_isize &&
-			*input_index_valid_size == 0 &&
-			(i+1) <= dbufs->ibufs->entries) {
-			pr_debug("all input buffers copied\n");
-			*new_entry_flag = true;
-			*input_index = i + 1;
-			break;
-		}
-	}
-	return retval;
-}
-
-/* This function is used to copy the decoded data from kernel buffers to
-the user output buffers with contents after decode*/
-static int sst_prepare_output_buffers(struct stream_info *str_info,
-			struct snd_sst_dbufs *dbufs,
-			int *output_index, int output_size,
-			int *out_copied)
-
-{
-	int i, cpy_size, retval = 0;
-	pr_debug("output_index = %d, output entries = %d\n",
-				*output_index,
-				dbufs->obufs->entries);
-	for (i = *output_index; i < dbufs->obufs->entries; i++) {
-		*output_index = i;
-		pr_debug("output addr = %p, size = %d\n",
-			dbufs->obufs->buff_entry[i].buffer,
-			dbufs->obufs->buff_entry[i].size);
-		pr_debug("output_size = %d, out_copied = %d\n",
-				output_size, *out_copied);
-		if (dbufs->obufs->buff_entry[i].size <
-				(output_size - *out_copied))
-			cpy_size = dbufs->obufs->buff_entry[i].size;
-		else
-			cpy_size = output_size - *out_copied;
-		pr_debug("cpy size = %d\n", cpy_size);
-		pr_debug("Try copy To: %p, From %p, size %d\n",
-				dbufs->obufs->buff_entry[i].buffer,
-				sst_drv_ctx->mmap_mem + *out_copied,
-				cpy_size);
-		retval = copy_to_user(dbufs->obufs->buff_entry[i].buffer,
-					sst_drv_ctx->mmap_mem + *out_copied,
-					cpy_size);
-		if (retval) {
-			pr_err("copy to user failed\n");
-			return -EIO;
-		} else
-			pr_debug("copy to user passed\n");
-		*out_copied += cpy_size;
-		dbufs->obufs->buff_entry[i].size -= cpy_size;
-		pr_debug("o/p buff size %d, out_copied %d\n",
-			dbufs->obufs->buff_entry[i].size, *out_copied);
-		if (dbufs->obufs->buff_entry[i].size != 0) {
-			*output_index = i;
-			dbufs->obufs->buff_entry[i].buffer += cpy_size;
-			break;
-		} else if (*out_copied == output_size) {
-			*output_index = i + 1;
-			break;
-		}
-	}
-	return retval;
-}
-
-/**
- * sst_decode - Send msg for decoding frames
- *
- * @str_id: ID of stream
- * @dbufs: param that holds the user input and output buffers and size
- *
- * This function is called to decode data from the firmware
- */
-int sst_decode(int str_id, struct snd_sst_dbufs *dbufs)
-{
-	int retval = 0, i;
-	unsigned long long total_input = 0 , total_output = 0;
-	unsigned int cum_input_given = 0 , cum_output_given = 0;
-	int copy_in_done = false, copy_out_done = false;
-	int input_index = 0, output_index = 0;
-	int input_index_valid_size = 0;
-	int in_copied, out_copied;
-	int new_entry_flag;
-	u64 output_size;
-	struct stream_info *str_info;
-	struct snd_sst_decode_info dec_info;
-	unsigned long long input_bytes, output_bytes;
-
-	sst_drv_ctx->scard_ops->power_down_pmic();
-	pr_debug("Powering_down_PMIC...\n");
-
-	retval = sst_validate_strid(str_id);
-	if (retval)
-		return retval;
-
-	str_info = &sst_drv_ctx->streams[str_id];
-	if (str_info->status != STREAM_INIT) {
-		pr_err("invalid stream state = %d\n",
-			       str_info->status);
-		return -EINVAL;
-	}
-
-	str_info->prev = str_info->status;
-	str_info->status = STREAM_DECODE;
-
-	for (i = 0; i < dbufs->ibufs->entries; i++)
-		cum_input_given += dbufs->ibufs->buff_entry[i].size;
-	for (i = 0; i < dbufs->obufs->entries; i++)
-		cum_output_given += dbufs->obufs->buff_entry[i].size;
-
-	/* input and output buffer allocation */
-	retval =  sst_allocate_decode_buf(str_info, dbufs,
-				cum_input_given, cum_output_given);
-	if (retval) {
-		pr_err("mem allocation failed, abort!!!\n");
-		retval = -ENOMEM;
-		goto finish;
-	}
-
-	str_info->decode_isize = str_info->idecode_alloc;
-	str_info->decode_ibuf_type = dbufs->ibufs->type;
-	str_info->decode_obuf_type = dbufs->obufs->type;
-
-	while ((copy_out_done == false) && (copy_in_done == false)) {
-		in_copied = 0;
-		new_entry_flag = false;
-		retval = sst_prepare_input_buffers(str_info,\
-			dbufs, &input_index, &in_copied,
-			&input_index_valid_size, &new_entry_flag);
-		if (retval) {
-			pr_err("prepare in buffers failed\n");
-			goto finish;
-		}
-
-		if (str_info->ops != STREAM_OPS_PLAYBACK_DRM)
-			str_info->decode_obuf = sst_drv_ctx->mmap_mem;
-
-#ifdef CONFIG_MRST_RAR_HANDLER
-		else {
-			if (dbufs->obufs->type == SST_BUF_RAR) {
-				struct RAR_buffer rar_buffers;
-				__u32 info;
-
-				pr_debug("DRM");
-				retval = copy_from_user((void *) &info,
-						dbufs->obufs->
-						buff_entry[output_index].buffer,
-						sizeof(__u32));
-
-				rar_buffers.info.size = dbufs->obufs->
-					buff_entry[output_index].size;
-				rar_buffers.info.handle =  info;
-				retval =  sst_get_RAR(&rar_buffers, 1);
-				if (retval)
-					return retval;
-
-				str_info->decode_obuf = (void *)((unsigned long)
-						rar_buffers.bus_address);
-				str_info->decode_osize = dbufs->obufs->
-					buff_entry[output_index].size;
-				str_info->decode_obuf_type = dbufs->obufs->type;
-				pr_debug("DRM handling\n");
-				pr_debug("o/p_add=0x%lu Size=0x%x\n",
-					(unsigned long) str_info->decode_obuf,
-					str_info->decode_osize);
-			} else {
-				str_info->decode_obuf = sst_drv_ctx->mmap_mem;
-				str_info->decode_osize = dbufs->obufs->
-					buff_entry[output_index].size;
-
-			}
-		}
-#endif
-		if (str_info->ops != STREAM_OPS_PLAYBACK_DRM) {
-			if (str_info->decode_isize > in_copied) {
-				str_info->decode_isize = in_copied;
-				pr_debug("i/p size = %d\n",
-						str_info->decode_isize);
-			}
-		}
-
-
-		retval = sst_send_decode_mess(str_id, str_info, &dec_info);
-		if (retval || dec_info.input_bytes_consumed == 0) {
-			pr_err("SST ERR: mess failed or no input consumed\n");
-			goto finish;
-		}
-		input_bytes = dec_info.input_bytes_consumed;
-		output_bytes = dec_info.output_bytes_produced;
-
-		pr_debug("in_copied=%d, con=%lld, prod=%lld\n",
-			in_copied, input_bytes, output_bytes);
-		if (dbufs->obufs->type == SST_BUF_RAR) {
-			output_index += 1;
-			if (output_index == dbufs->obufs->entries) {
-				copy_in_done = true;
-				pr_debug("all i/p cpy done\n");
-			}
-			total_output += output_bytes;
-		} else {
-			out_copied = 0;
-			output_size = output_bytes;
-			retval = sst_prepare_output_buffers(str_info, dbufs,
-				&output_index, output_size, &out_copied);
-			if (retval) {
-				pr_err("prep out buff fail\n");
-				goto finish;
-			}
-			if (str_info->ops != STREAM_OPS_PLAYBACK_DRM) {
-				if (in_copied != input_bytes) {
-					int bytes_left = in_copied -
-								input_bytes;
-					pr_debug("bytes %d\n",
-							bytes_left);
-					if (new_entry_flag == true)
-						input_index--;
-					while (bytes_left) {
-						struct snd_sst_buffs *ibufs;
-						struct snd_sst_buff_entry
-								*buff_entry;
-						unsigned int size_sent;
-
-						ibufs = dbufs->ibufs;
-						buff_entry =
-						&ibufs->buff_entry[input_index];
-						size_sent = buff_entry->size -\
-							input_index_valid_size;
-						if (bytes_left == size_sent) {
-								bytes_left = 0;
-						} else if (bytes_left <
-								size_sent) {
-							buff_entry->buffer +=
-							 (size_sent -
-								bytes_left);
-							buff_entry->size -=
-							 (size_sent -
-								bytes_left);
-							bytes_left = 0;
-						} else {
-							bytes_left -= size_sent;
-							input_index--;
-							input_index_valid_size =
-									0;
-						}
-					}
-
-				}
-			}
-
-			total_output += out_copied;
-			if (str_info->decode_osize != out_copied) {
-				str_info->decode_osize -= out_copied;
-				pr_debug("output size modified = %d\n",
-						str_info->decode_osize);
-			}
-		}
-		total_input += input_bytes;
-
-		if (str_info->ops == STREAM_OPS_PLAYBACK_DRM) {
-			if (total_input == cum_input_given)
-				copy_in_done = true;
-			copy_out_done = true;
-
-		} else {
-			if (total_output == cum_output_given) {
-				copy_out_done = true;
-				pr_debug("all o/p cpy done\n");
-			}
-
-			if (total_input == cum_input_given) {
-				copy_in_done = true;
-				pr_debug("all i/p cpy done\n");
-			}
-		}
-
-		pr_debug("copy_out = %d, copy_in = %d\n",
-				copy_out_done, copy_in_done);
-	}
-
-finish:
-	dbufs->input_bytes_consumed = total_input;
-	dbufs->output_bytes_produced = total_output;
-	str_info->status = str_info->prev;
-	str_info->prev = STREAM_DECODE;
-	kfree(str_info->decode_ibuf);
-	str_info->decode_ibuf = NULL;
-	return retval;
-}
diff --git a/drivers/staging/intel_sst/intelmid.c b/drivers/staging/intel_sst/intelmid.c
deleted file mode 100644
index 492b660246b4..000000000000
--- a/drivers/staging/intel_sst/intelmid.c
+++ /dev/null
@@ -1,1022 +0,0 @@
-/*
- *   intelmid.c - Intel Sound card driver for MID
- *
- *  Copyright (C) 2008-10 Intel Corp
- *  Authors:	Harsha Priya <priya.harsha@intel.com>
- *		Vinod Koul <vinod.koul@intel.com>
- *		Dharageswari R <dharageswari.r@intel.com>
- *		KP Jeeja <jeeja.kp@intel.com>
- *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; version 2 of the License.
- *
- *  This program is distributed in the hope that it will be useful, but
- *  WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- * ALSA driver for Intel MID sound card chipset
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/io.h>
-#include <linux/platform_device.h>
-#include <linux/interrupt.h>
-#include <linux/sched.h>
-#include <linux/firmware.h>
-#include <linux/input.h>
-#include <sound/control.h>
-#include <asm/mrst.h>
-#include <sound/pcm.h>
-#include <sound/jack.h>
-#include <sound/pcm_params.h>
-#include <sound/initval.h>
-#include <linux/gpio.h>
-#include "intel_sst.h"
-#include "intel_sst_ioctl.h"
-#include "intel_sst_fw_ipc.h"
-#include "intel_sst_common.h"
-#include "intelmid_snd_control.h"
-#include "intelmid_adc_control.h"
-#include "intelmid.h"
-
-MODULE_AUTHOR("Vinod Koul <vinod.koul@intel.com>");
-MODULE_AUTHOR("Harsha Priya <priya.harsha@intel.com>");
-MODULE_AUTHOR("Dharageswari R <dharageswari.r@intel.com>");
-MODULE_AUTHOR("KP Jeeja <jeeja.kp@intel.com>");
-MODULE_DESCRIPTION("Intel MAD Sound card driver");
-MODULE_LICENSE("GPL v2");
-MODULE_SUPPORTED_DEVICE("{Intel,Intel_MAD}");
-
-
-static int card_index = SNDRV_DEFAULT_IDX1;/* Index 0-MAX */
-static char *card_id = SNDRV_DEFAULT_STR1;	/* ID for this card */
-
-module_param(card_index, int, 0444);
-MODULE_PARM_DESC(card_index, "Index value for INTELMAD soundcard.");
-module_param(card_id, charp, 0444);
-MODULE_PARM_DESC(card_id, "ID string for INTELMAD soundcard.");
-
-int	sst_card_vendor_id;
-int intelmid_audio_interrupt_enable;/*checkpatch fix*/
-struct snd_intelmad *intelmad_drv;
-
-#define INFO(_cpu_id, _irq_cache, _size) \
-	((kernel_ulong_t)&(struct snd_intelmad_probe_info) {	\
-		.cpu_id = (_cpu_id),			\
-		.irq_cache = (_irq_cache),			\
-		.size = (_size),				\
-	})
-/* Data path functionalities */
-static struct snd_pcm_hardware snd_intelmad_stream = {
-	.info =	(SNDRV_PCM_INFO_INTERLEAVED |
-			SNDRV_PCM_INFO_DOUBLE |
-			SNDRV_PCM_INFO_PAUSE |
-			SNDRV_PCM_INFO_RESUME |
-			SNDRV_PCM_INFO_MMAP|
-			SNDRV_PCM_INFO_MMAP_VALID |
-			SNDRV_PCM_INFO_BLOCK_TRANSFER |
-			SNDRV_PCM_INFO_SYNC_START),
-	.formats = (SNDRV_PCM_FMTBIT_S16 | SNDRV_PCM_FMTBIT_U16 |
-			SNDRV_PCM_FMTBIT_S24 | SNDRV_PCM_FMTBIT_U24 |
-			SNDRV_PCM_FMTBIT_S32 | SNDRV_PCM_FMTBIT_U32),
-	.rates = (SNDRV_PCM_RATE_8000|
-			SNDRV_PCM_RATE_44100 |
-			SNDRV_PCM_RATE_48000),
-	.rate_min = MIN_RATE,
-
-	.rate_max = MAX_RATE,
-	.channels_min =	MIN_CHANNEL,
-	.channels_max =	MAX_CHANNEL_AMIC,
-	.buffer_bytes_max = MAX_BUFFER,
-	.period_bytes_min = MIN_PERIOD_BYTES,
-	.period_bytes_max = MAX_PERIOD_BYTES,
-	.periods_min = MIN_PERIODS,
-	.periods_max = MAX_PERIODS,
-	.fifo_size = FIFO_SIZE,
-};
-
-
-/**
- * snd_intelmad_pcm_trigger - stream activities are handled here
- *
- * @substream:substream for which the stream function is called
- * @cmd:the stream commamd that requested from upper layer
- *
- * This function is called whenever an a stream activity is invoked
- */
-static int snd_intelmad_pcm_trigger(struct snd_pcm_substream *substream,
-					int cmd)
-{
-	int ret_val = 0, str_id;
-	struct snd_intelmad *intelmaddata;
-	struct mad_stream_pvt *stream;
-	struct intel_sst_pcm_control *sst_ops;
-
-	WARN_ON(!substream);
-
-	intelmaddata = snd_pcm_substream_chip(substream);
-	stream = substream->runtime->private_data;
-
-	WARN_ON(!intelmaddata->sstdrv_ops);
-	WARN_ON(!intelmaddata->sstdrv_ops->scard_ops);
-	sst_ops  = intelmaddata->sstdrv_ops->pcm_control;
-	str_id = stream->stream_info.str_id;
-
-	switch (cmd) {
-	case SNDRV_PCM_TRIGGER_START:
-		pr_debug("Trigger Start\n");
-		ret_val = sst_ops->device_control(SST_SND_START, &str_id);
-		if (ret_val)
-			return ret_val;
-		stream->stream_status = RUNNING;
-		stream->substream = substream;
-		break;
-	case SNDRV_PCM_TRIGGER_STOP:
-		pr_debug("in stop\n");
-		ret_val = sst_ops->device_control(SST_SND_DROP, &str_id);
-		if (ret_val)
-			return ret_val;
-		stream->stream_status = DROPPED;
-		break;
-	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
-		pr_debug("in pause\n");
-		ret_val = sst_ops->device_control(SST_SND_PAUSE, &str_id);
-		if (ret_val)
-			return ret_val;
-		stream->stream_status = PAUSED;
-		break;
-	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
-		pr_debug("in pause release\n");
-		ret_val = sst_ops->device_control(SST_SND_RESUME, &str_id);
-		if (ret_val)
-			return ret_val;
-		stream->stream_status = RUNNING;
-		break;
-	default:
-		return -EINVAL;
-	}
-	return ret_val;
-}
-
-/**
-* snd_intelmad_pcm_prepare- internal preparation before starting a stream
-*
-* @substream:  substream for which the function is called
-*
-* This function is called when a stream is started for internal preparation.
-*/
-static int snd_intelmad_pcm_prepare(struct snd_pcm_substream *substream)
-{
-	struct mad_stream_pvt *stream;
-	int ret_val = 0;
-	struct snd_intelmad *intelmaddata;
-
-	pr_debug("pcm_prepare called\n");
-
-	WARN_ON(!substream);
-	stream = substream->runtime->private_data;
-	intelmaddata = snd_pcm_substream_chip(substream);
-	pr_debug("pb cnt = %d cap cnt = %d\n",\
-		intelmaddata->playback_cnt,
-		intelmaddata->capture_cnt);
-
-	if (stream->stream_info.str_id) {
-		pr_debug("Prepare called for already set stream\n");
-		ret_val = intelmaddata->sstdrv_ops->pcm_control->device_control(
-				SST_SND_DROP, &stream->stream_info.str_id);
-		return ret_val;
-	}
-
-	ret_val = snd_intelmad_alloc_stream(substream);
-	if (ret_val < 0)
-		return ret_val;
-	stream->dbg_cum_bytes = 0;
-	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-			intelmaddata->playback_cnt++;
-	else
-		intelmaddata->capture_cnt++;
-	/* return back the stream id */
-	snprintf(substream->pcm->id, sizeof(substream->pcm->id),
-			"%d", stream->stream_info.str_id);
-	pr_debug("stream id to user = %s\n",
-			substream->pcm->id);
-
-	ret_val = snd_intelmad_init_stream(substream);
-	if (ret_val)
-		return ret_val;
-	substream->runtime->hw.info = SNDRV_PCM_INFO_BLOCK_TRANSFER;
-	return ret_val;
-}
-
-static int snd_intelmad_hw_params(struct snd_pcm_substream *substream,
-				    struct snd_pcm_hw_params *hw_params)
-{
-	int ret_val;
-
-	pr_debug("snd_intelmad_hw_params called\n");
-	ret_val = snd_pcm_lib_malloc_pages(substream,
-			params_buffer_bytes(hw_params));
-	memset(substream->runtime->dma_area, 0,
-			params_buffer_bytes(hw_params));
-
-	return ret_val;
-}
-
-static int snd_intelmad_hw_free(struct snd_pcm_substream *substream)
-{
-	pr_debug("snd_intelmad_hw_free called\n");
-	return snd_pcm_lib_free_pages(substream);
-}
-
-/**
- * snd_intelmad_pcm_pointer- to send the current buffer pointer processed by hw
- *
- * @substream:  substream for which the function is called
- *
- * This function is called by ALSA framework to get the current hw buffer ptr
- * when a period is elapsed
- */
-static snd_pcm_uframes_t snd_intelmad_pcm_pointer
-			(struct snd_pcm_substream *substream)
-{
-	/* struct snd_pcm_runtime *runtime = substream->runtime; */
-	struct mad_stream_pvt *stream;
-	struct snd_intelmad *intelmaddata;
-	int ret_val;
-
-	WARN_ON(!substream);
-
-	intelmaddata = snd_pcm_substream_chip(substream);
-	stream = substream->runtime->private_data;
-	if (stream->stream_status == INIT)
-		return 0;
-
-	ret_val = intelmaddata->sstdrv_ops->pcm_control->device_control(
-			SST_SND_BUFFER_POINTER, &stream->stream_info);
-	if (ret_val) {
-		pr_err("error code = 0x%x\n", ret_val);
-		return ret_val;
-	}
-	pr_debug("samples reported out 0x%llx\n",
-			stream->stream_info.buffer_ptr);
-	pr_debug("Frame bits:: %d period_count :: %d\n",
-			(int)substream->runtime->frame_bits,
-			(int)substream->runtime->period_size);
-
-	return stream->stream_info.buffer_ptr;
-
-}
-
-/**
- * snd_intelmad_close- to free parameteres when stream is stopped
- *
- * @substream:  substream for which the function is called
- *
- * This function is called by ALSA framework when stream is stopped
- */
-static int snd_intelmad_close(struct snd_pcm_substream *substream)
-{
-	struct snd_intelmad *intelmaddata;
-	struct mad_stream_pvt *stream;
-	int ret_val = 0, str_id;
-
-	WARN_ON(!substream);
-
-	stream = substream->runtime->private_data;
-	str_id = stream->stream_info.str_id;
-
-	pr_debug("sst: snd_intelmad_close called for %d\n", str_id);
-	intelmaddata = snd_pcm_substream_chip(substream);
-
-	pr_debug("str id = %d\n", stream->stream_info.str_id);
-	if (stream->stream_info.str_id) {
-		/* SST API to actually stop/free the stream */
-		ret_val = intelmaddata->sstdrv_ops->pcm_control->close(str_id);
-		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
-			intelmaddata->playback_cnt--;
-		else
-			intelmaddata->capture_cnt--;
-	}
-	pr_debug("snd_intelmad_close : pb cnt = %d cap cnt = %d\n",
-		intelmaddata->playback_cnt, intelmaddata->capture_cnt);
-	kfree(substream->runtime->private_data);
-	return ret_val;
-}
-
-/**
- * snd_intelmad_open- to set runtime parameters during stream start
- *
- * @substream:  substream for which the function is called
- * @type: audio device type
- *
- * This function is called by ALSA framework when stream is started
- */
-static int snd_intelmad_open(struct snd_pcm_substream *substream,
-			enum snd_sst_audio_device_type type)
-{
-	struct snd_intelmad *intelmaddata;
-	struct snd_pcm_runtime *runtime;
-	struct mad_stream_pvt *stream;
-
-	WARN_ON(!substream);
-
-	pr_debug("snd_intelmad_open called\n");
-
-	intelmaddata = snd_pcm_substream_chip(substream);
-	runtime = substream->runtime;
-	/* set the runtime hw parameter with local snd_pcm_hardware struct */
-	runtime->hw = snd_intelmad_stream;
-	if (intelmaddata->cpu_id == CPU_CHIP_LINCROFT) {
-		/*
-		 * MRST firmware currently denies stereo recording requests.
-		 */
-		if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
-			runtime->hw.formats = (SNDRV_PCM_FMTBIT_S16 |
-					       SNDRV_PCM_FMTBIT_U16);
-			runtime->hw.channels_max = 1;
-		}
-	}
-	if (intelmaddata->cpu_id == CPU_CHIP_PENWELL) {
-		runtime->hw = snd_intelmad_stream;
-		runtime->hw.rates = SNDRV_PCM_RATE_48000;
-		runtime->hw.rate_min = MAX_RATE;
-		runtime->hw.formats = (SNDRV_PCM_FMTBIT_S24 |
-						SNDRV_PCM_FMTBIT_U24);
-		if (intelmaddata->sstdrv_ops->scard_ops->input_dev_id == AMIC)
-			runtime->hw.channels_max = MAX_CHANNEL_AMIC;
-		else
-			runtime->hw.channels_max = MAX_CHANNEL_DMIC;
-
-	}
-	/* setup the internal datastruture stream pointers based on it being
-	playback or capture stream */
-	stream = kzalloc(sizeof(*stream), GFP_KERNEL);
-	if (!stream)
-		return -ENOMEM;
-	stream->stream_info.str_id = 0;
-	stream->device = type;
-	stream->stream_status = INIT;
-	runtime->private_data = stream;
-	return snd_pcm_hw_constraint_integer(runtime,
-			 SNDRV_PCM_HW_PARAM_PERIODS);
-}
-
-static int snd_intelmad_headset_open(struct snd_pcm_substream *substream)
-{
-	return snd_intelmad_open(substream, SND_SST_DEVICE_HEADSET);
-}
-
-static int snd_intelmad_ihf_open(struct snd_pcm_substream *substream)
-{
-	return snd_intelmad_open(substream, SND_SST_DEVICE_IHF);
-}
-
-static int snd_intelmad_vibra_open(struct snd_pcm_substream *substream)
-{
-	return snd_intelmad_open(substream, SND_SST_DEVICE_VIBRA);
-}
-
-static int snd_intelmad_haptic_open(struct snd_pcm_substream *substream)
-{
-	return snd_intelmad_open(substream, SND_SST_DEVICE_HAPTIC);
-}
-
-static struct snd_pcm_ops snd_intelmad_headset_ops = {
-	.open = snd_intelmad_headset_open,
-	.close = snd_intelmad_close,
-	.ioctl = snd_pcm_lib_ioctl,
-	.hw_params = snd_intelmad_hw_params,
-	.hw_free = snd_intelmad_hw_free,
-	.prepare = snd_intelmad_pcm_prepare,
-	.trigger = snd_intelmad_pcm_trigger,
-	.pointer = snd_intelmad_pcm_pointer,
-};
-
-static struct snd_pcm_ops snd_intelmad_ihf_ops = {
-	.open = snd_intelmad_ihf_open,
-	.close = snd_intelmad_close,
-	.ioctl = snd_pcm_lib_ioctl,
-	.hw_params = snd_intelmad_hw_params,
-	.hw_free = snd_intelmad_hw_free,
-	.prepare = snd_intelmad_pcm_prepare,
-	.trigger = snd_intelmad_pcm_trigger,
-	.pointer = snd_intelmad_pcm_pointer,
-};
-
-static struct snd_pcm_ops snd_intelmad_vibra_ops = {
-	.open = snd_intelmad_vibra_open,
-	.close = snd_intelmad_close,
-	.ioctl = snd_pcm_lib_ioctl,
-	.hw_params = snd_intelmad_hw_params,
-	.hw_free = snd_intelmad_hw_free,
-	.prepare = snd_intelmad_pcm_prepare,
-	.trigger = snd_intelmad_pcm_trigger,
-	.pointer = snd_intelmad_pcm_pointer,
-};
-
-static struct snd_pcm_ops snd_intelmad_haptic_ops = {
-	.open = snd_intelmad_haptic_open,
-	.close = snd_intelmad_close,
-	.ioctl = snd_pcm_lib_ioctl,
-	.hw_params = snd_intelmad_hw_params,
-	.hw_free = snd_intelmad_hw_free,
-	.prepare = snd_intelmad_pcm_prepare,
-	.trigger = snd_intelmad_pcm_trigger,
-	.pointer = snd_intelmad_pcm_pointer,
-};
-
-static struct snd_pcm_ops snd_intelmad_capture_ops = {
-	.open = snd_intelmad_headset_open,
-	.close = snd_intelmad_close,
-	.ioctl = snd_pcm_lib_ioctl,
-	.hw_params = snd_intelmad_hw_params,
-	.hw_free = snd_intelmad_hw_free,
-	.prepare = snd_intelmad_pcm_prepare,
-	.trigger = snd_intelmad_pcm_trigger,
-	.pointer = snd_intelmad_pcm_pointer,
-};
-
-int intelmad_get_mic_bias(void)
-{
-	struct snd_pmic_ops *pmic_ops;
-
-	if (!intelmad_drv || !intelmad_drv->sstdrv_ops)
-		return -ENODEV;
-	pmic_ops = intelmad_drv->sstdrv_ops->scard_ops;
-	if (pmic_ops && pmic_ops->pmic_get_mic_bias)
-		return pmic_ops->pmic_get_mic_bias(intelmad_drv);
-	else
-		return -ENODEV;
-}
-EXPORT_SYMBOL_GPL(intelmad_get_mic_bias);
-
-int intelmad_set_headset_state(int state)
-{
-	struct snd_pmic_ops *pmic_ops;
-
-	if (!intelmad_drv || !intelmad_drv->sstdrv_ops)
-		return -ENODEV;
-	pmic_ops = intelmad_drv->sstdrv_ops->scard_ops;
-	if (pmic_ops && pmic_ops->pmic_set_headset_state)
-		return pmic_ops->pmic_set_headset_state(state);
-	else
-		return -ENODEV;
-}
-EXPORT_SYMBOL_GPL(intelmad_set_headset_state);
-
-void sst_process_mad_jack_detection(struct work_struct *work)
-{
-	u8 interrupt_status;
-	struct mad_jack_msg_wq *mad_jack_detect =
-			container_of(work, struct mad_jack_msg_wq, wq);
-
-	struct snd_intelmad *intelmaddata =
-			mad_jack_detect->intelmaddata;
-
-	if (!intelmaddata)
-		return;
-
-	interrupt_status = mad_jack_detect->intsts;
-	if (intelmaddata->sstdrv_ops && intelmaddata->sstdrv_ops->scard_ops
-			&& intelmaddata->sstdrv_ops->scard_ops->pmic_irq_cb) {
-		intelmaddata->sstdrv_ops->scard_ops->pmic_irq_cb(
-			(void *)intelmaddata, interrupt_status);
-		intelmaddata->sstdrv_ops->scard_ops->pmic_jack_enable();
-	}
-	kfree(mad_jack_detect);
-}
-/**
- * snd_intelmad_intr_handler- interrupt handler
- *
- * @irq :  irq number of the interrupt received
- * @dev: device context
- *
- * This function is called when an interrupt is raised at the sound card
- */
-static irqreturn_t snd_intelmad_intr_handler(int irq, void *dev)
-{
-	struct snd_intelmad *intelmaddata =
-			(struct snd_intelmad *)dev;
-	u8 interrupt_status;
-	struct mad_jack_msg_wq  *mad_jack_msg;
-	memcpy_fromio(&interrupt_status,
-			((void *)(intelmaddata->int_base)),
-			sizeof(u8));
-
-	mad_jack_msg = kzalloc(sizeof(*mad_jack_msg), GFP_ATOMIC);
-	mad_jack_msg->intsts = interrupt_status;
-	mad_jack_msg->intelmaddata = intelmaddata;
-	INIT_WORK(&mad_jack_msg->wq, sst_process_mad_jack_detection);
-	queue_work(intelmaddata->mad_jack_wq, &mad_jack_msg->wq);
-
-	return IRQ_HANDLED;
-}
-
-void sst_mad_send_jack_report(struct snd_jack *jack,
-				int buttonpressevent , int status)
-{
-
-	if (!jack) {
-		pr_debug("MAD error jack empty\n");
-
-	} else {
-		snd_jack_report(jack, status);
-		/* button pressed and released */
-		if (buttonpressevent)
-			snd_jack_report(jack, 0);
-		pr_debug("MAD sending jack report Done !!!\n");
-	}
-}
-
-static int __devinit snd_intelmad_register_irq(
-		struct snd_intelmad *intelmaddata, unsigned int regbase,
-		unsigned int regsize)
-{
-	int ret_val;
-	char *drv_name;
-
-	pr_debug("irq reg regbase 0x%x, regsize 0x%x\n",
-					regbase, regsize);
-	intelmaddata->int_base = ioremap_nocache(regbase, regsize);
-	if (!intelmaddata->int_base)
-		pr_err("Mapping of cache failed\n");
-	pr_debug("irq = 0x%x\n", intelmaddata->irq);
-	if (intelmaddata->cpu_id == CPU_CHIP_PENWELL)
-		drv_name = DRIVER_NAME_MFLD;
-	else
-		drv_name = DRIVER_NAME_MRST;
-	ret_val = request_irq(intelmaddata->irq,
-				snd_intelmad_intr_handler,
-				IRQF_SHARED, drv_name,
-				intelmaddata);
-	if (ret_val)
-		pr_err("cannot register IRQ\n");
-	return ret_val;
-}
-
-static int __devinit snd_intelmad_sst_register(
-			struct snd_intelmad *intelmaddata)
-{
-	int ret_val = 0;
-	struct snd_pmic_ops *intelmad_vendor_ops[MAX_VENDORS] = {
-		&snd_pmic_ops_fs,
-		&snd_pmic_ops_mx,
-		&snd_pmic_ops_nc,
-		&snd_msic_ops
-	};
-
-	struct sc_reg_access vendor_addr = {0x00, 0x00, 0x00};
-
-	if (intelmaddata->cpu_id == CPU_CHIP_LINCROFT) {
-		ret_val = sst_sc_reg_access(&vendor_addr, PMIC_READ, 1);
-		if (ret_val)
-			return ret_val;
-		sst_card_vendor_id = (vendor_addr.value & (MASK2|MASK1|MASK0));
-		pr_debug("original n extrated vendor id = 0x%x %d\n",
-				vendor_addr.value, sst_card_vendor_id);
-		if (sst_card_vendor_id < 0 || sst_card_vendor_id > 2) {
-			pr_err("vendor card not supported!!\n");
-			return -EIO;
-		}
-	} else
-		sst_card_vendor_id = 0x3;
-
-	intelmaddata->sstdrv_ops->module_name = SST_CARD_NAMES;
-	intelmaddata->sstdrv_ops->vendor_id = sst_card_vendor_id;
-	BUG_ON(!intelmad_vendor_ops[sst_card_vendor_id]);
-	intelmaddata->sstdrv_ops->scard_ops =
-			intelmad_vendor_ops[sst_card_vendor_id];
-
-	if (intelmaddata->cpu_id == CPU_CHIP_PENWELL) {
-		intelmaddata->sstdrv_ops->scard_ops->pb_on = 0;
-		intelmaddata->sstdrv_ops->scard_ops->cap_on = 0;
-		intelmaddata->sstdrv_ops->scard_ops->input_dev_id = DMIC;
-		intelmaddata->sstdrv_ops->scard_ops->output_dev_id =
-							STEREO_HEADPHONE;
-		intelmaddata->sstdrv_ops->scard_ops->lineout_dev_id = NONE;
-	}
-
-	/* registering with SST driver to get access to SST APIs to use */
-	ret_val = register_sst_card(intelmaddata->sstdrv_ops);
-	if (ret_val) {
-		pr_err("sst card registration failed\n");
-		return ret_val;
-	}
-	sst_card_vendor_id = intelmaddata->sstdrv_ops->vendor_id;
-	intelmaddata->pmic_status = PMIC_UNINIT;
-	return ret_val;
-}
-
-static void snd_intelmad_page_free(struct snd_pcm *pcm)
-{
-	snd_pcm_lib_preallocate_free_for_all(pcm);
-}
-/* Driver Init/exit functionalities */
-/**
- * snd_intelmad_pcm_new - to setup pcm for the card
- *
- * @card:  pointer to the sound card structure
- * @intelmaddata: pointer to internal context
- * @pb: playback count for this card
- * @cap: capture count for this card
- * @index: device index
- *
- * This function is called from probe function to set up pcm params
- * and functions
- */
-static int __devinit snd_intelmad_pcm_new(struct snd_card *card,
-			struct snd_intelmad *intelmaddata,
-			unsigned int pb, unsigned int cap, unsigned int index)
-{
-	int ret_val = 0;
-	struct snd_pcm *pcm;
-	char name[32] = INTEL_MAD;
-	struct snd_pcm_ops *pb_ops = NULL, *cap_ops = NULL;
-
-	pr_debug("called for pb %d, cp %d, idx %d\n", pb, cap, index);
-	ret_val = snd_pcm_new(card, name, index, pb, cap, &pcm);
-	if (ret_val)
-		return ret_val;
-	/* setup the ops for playback and capture streams */
-	switch (index) {
-	case 0:
-		pb_ops = &snd_intelmad_headset_ops;
-		cap_ops = &snd_intelmad_capture_ops;
-		break;
-	case 1:
-		pb_ops = &snd_intelmad_ihf_ops;
-		cap_ops = &snd_intelmad_capture_ops;
-		break;
-	case 2:
-		pb_ops = &snd_intelmad_vibra_ops;
-		cap_ops = &snd_intelmad_capture_ops;
-		break;
-	case 3:
-		pb_ops = &snd_intelmad_haptic_ops;
-		cap_ops = &snd_intelmad_capture_ops;
-		break;
-	}
-	if (pb)
-		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_PLAYBACK, pb_ops);
-	if (cap)
-		snd_pcm_set_ops(pcm, SNDRV_PCM_STREAM_CAPTURE, cap_ops);
-	/* setup private data which can be retrieved when required */
-	pcm->private_data = intelmaddata;
-	pcm->private_free = snd_intelmad_page_free;
-	pcm->info_flags = 0;
-	strncpy(pcm->name, card->shortname, strlen(card->shortname));
-	/* allocate dma pages for ALSA stream operations */
-	snd_pcm_lib_preallocate_pages_for_all(pcm,
-			SNDRV_DMA_TYPE_CONTINUOUS,
-			snd_dma_continuous_data(GFP_KERNEL),
-			MIN_BUFFER, MAX_BUFFER);
-	return ret_val;
-}
-
-static int __devinit snd_intelmad_pcm(struct snd_card *card,
-				struct snd_intelmad *intelmaddata)
-{
-	int ret_val = 0;
-
-	WARN_ON(!card);
-	WARN_ON(!intelmaddata);
-	pr_debug("snd_intelmad_pcm called\n");
-	ret_val = snd_intelmad_pcm_new(card, intelmaddata, 1, 1, 0);
-	if (intelmaddata->cpu_id == CPU_CHIP_LINCROFT)
-		return ret_val;
-	ret_val = snd_intelmad_pcm_new(card, intelmaddata, 1, 0, 1);
-	if (ret_val)
-		return ret_val;
-	ret_val = snd_intelmad_pcm_new(card, intelmaddata, 1, 0, 2);
-	if (ret_val)
-		return ret_val;
-	return snd_intelmad_pcm_new(card, intelmaddata, 1, 0, 3);
-}
-
-/**
- * snd_intelmad_jack- to setup jack settings of the card
- *
- * @intelmaddata: pointer to internal context
- *
- * This function is called send jack events
- */
-static int snd_intelmad_jack(struct snd_intelmad *intelmaddata)
-{
-	struct snd_jack *jack;
-	int retval;
-
-	pr_debug("snd_intelmad_jack called\n");
-	jack = &intelmaddata->jack[0].jack;
-	snd_jack_set_key(jack, SND_JACK_BTN_0, KEY_PHONE);
-	retval = snd_jack_new(intelmaddata->card, "Intel(R) MID Audio Jack",
-		SND_JACK_HEADPHONE | SND_JACK_HEADSET |
-		SW_JACK_PHYSICAL_INSERT | SND_JACK_BTN_0
-		| SND_JACK_BTN_1, &jack);
-	pr_debug("snd_intelmad_jack called\n");
-	if (retval < 0)
-		return retval;
-	snd_jack_report(jack, 0);
-
-	jack->private_data = jack;
-	intelmaddata->jack[0].jack = *jack;
-
-	return retval;
-}
-
-/**
- * snd_intelmad_mixer- to setup mixer settings of the card
- *
- * @intelmaddata: pointer to internal context
- *
- * This function is called from probe function to set up mixer controls
- */
-static int __devinit snd_intelmad_mixer(struct snd_intelmad *intelmaddata)
-{
-	struct snd_card *card;
-	unsigned int idx;
-	int ret_val = 0, max_controls = 0;
-	char *mixername = "IntelMAD Controls";
-	struct snd_kcontrol_new *controls;
-
-	WARN_ON(!intelmaddata);
-
-	card = intelmaddata->card;
-	strncpy(card->mixername, mixername, sizeof(card->mixername)-1);
-	/* add all widget controls and expose the same */
-	if (intelmaddata->cpu_id == CPU_CHIP_PENWELL) {
-		max_controls = MAX_CTRL_MFLD;
-		controls = snd_intelmad_controls_mfld;
-	} else {
-		max_controls = MAX_CTRL_MRST;
-		controls = snd_intelmad_controls_mrst;
-	}
-	for (idx = 0; idx < max_controls; idx++) {
-		ret_val = snd_ctl_add(card,
-				snd_ctl_new1(&controls[idx],
-				intelmaddata));
-		pr_debug("mixer[idx]=%d added\n", idx);
-		if (ret_val) {
-			pr_err("in adding of control index = %d\n", idx);
-			break;
-		}
-	}
-	return ret_val;
-}
-
-static int snd_intelmad_dev_free(struct snd_device *device)
-{
-	struct snd_intelmad *intelmaddata;
-
-	WARN_ON(!device);
-
-	intelmaddata = device->device_data;
-
-	pr_debug("snd_intelmad_dev_free called\n");
-	unregister_sst_card(intelmaddata->sstdrv_ops);
-
-	/* free allocated memory for internal context */
-	destroy_workqueue(intelmaddata->mad_jack_wq);
-	device->device_data = NULL;
-	kfree(intelmaddata->sstdrv_ops);
-	kfree(intelmaddata);
-
-	return 0;
-}
-
-static int __devinit snd_intelmad_create(
-		struct snd_intelmad *intelmaddata,
-		struct snd_card *card)
-{
-	int ret_val;
-	static struct snd_device_ops ops = {
-		.dev_free =	snd_intelmad_dev_free,
-	};
-
-	WARN_ON(!intelmaddata);
-	WARN_ON(!card);
-	/* ALSA api to register for the device */
-	ret_val = snd_device_new(card, SNDRV_DEV_LOWLEVEL, intelmaddata, &ops);
-	return ret_val;
-}
-
-/**
-* snd_intelmad_probe- function registred for init
-* @pdev :  pointer to the device struture
-* This function is called when the device is initialized
-*/
-int __devinit snd_intelmad_probe(struct platform_device *pdev)
-{
-	struct snd_card *card;
-	int ret_val;
-	struct snd_intelmad *intelmaddata;
-	const struct platform_device_id *id = platform_get_device_id(pdev);
-	struct snd_intelmad_probe_info *info = (void *)id->driver_data;
-
-	pr_debug("probe for %s cpu_id %d\n", pdev->name, info->cpu_id);
-	pr_debug("rq_chache %x of size %x\n", info->irq_cache, info->size);
-	if (!strcmp(pdev->name, DRIVER_NAME_MRST))
-		pr_debug("detected MRST\n");
-	else if (!strcmp(pdev->name, DRIVER_NAME_MFLD))
-		pr_debug("detected MFLD\n");
-	else {
-		pr_err("detected unknown device abort!!\n");
-		return -EIO;
-	}
-	if ((info->cpu_id < CPU_CHIP_LINCROFT) ||
-				(info->cpu_id > CPU_CHIP_PENWELL)) {
-		pr_err("detected unknown cpu_id abort!!\n");
-		return -EIO;
-	}
-	/* allocate memory for saving internal context and working */
-	intelmaddata = kzalloc(sizeof(*intelmaddata), GFP_KERNEL);
-	if (!intelmaddata) {
-		pr_debug("mem alloctn fail\n");
-		return -ENOMEM;
-	}
-	intelmad_drv = intelmaddata;
-
-	/* allocate memory for LPE API set */
-	intelmaddata->sstdrv_ops = kzalloc(sizeof(struct intel_sst_card_ops),
-					GFP_KERNEL);
-	if (!intelmaddata->sstdrv_ops) {
-		pr_err("mem allocation for ops fail\n");
-		kfree(intelmaddata);
-		return -ENOMEM;
-	}
-
-	intelmaddata->cpu_id = info->cpu_id;
-	/* create a card instance with ALSA framework */
-	ret_val = snd_card_create(card_index, card_id, THIS_MODULE, 0, &card);
-	if (ret_val) {
-		pr_err("snd_card_create fail\n");
-		goto free_allocs;
-	}
-
-	intelmaddata->pdev = pdev;
-	intelmaddata->irq = platform_get_irq(pdev, 0);
-	platform_set_drvdata(pdev, intelmaddata);
-	intelmaddata->card = card;
-	intelmaddata->card_id = card_id;
-	intelmaddata->card_index = card_index;
-	intelmaddata->master_mute = UNMUTE;
-	intelmaddata->playback_cnt =  intelmaddata->capture_cnt = 0;
-	strncpy(card->driver, INTEL_MAD, strlen(INTEL_MAD));
-	strncpy(card->shortname, INTEL_MAD, strlen(INTEL_MAD));
-
-	intelmaddata->sstdrv_ops->module_name = SST_CARD_NAMES;
-	/* registering with LPE driver to get access to SST APIs to use */
-	ret_val = snd_intelmad_sst_register(intelmaddata);
-	if (ret_val) {
-		pr_err("snd_intelmad_sst_register failed\n");
-		goto set_null_data;
-	}
-
-	intelmaddata->pmic_status = PMIC_INIT;
-
-	ret_val = snd_intelmad_pcm(card, intelmaddata);
-	if (ret_val) {
-		pr_err("snd_intelmad_pcm failed\n");
-		goto free_sst;
-	}
-
-	ret_val = snd_intelmad_mixer(intelmaddata);
-	if (ret_val) {
-		pr_err("snd_intelmad_mixer failed\n");
-		goto free_card;
-	}
-
-	ret_val = snd_intelmad_jack(intelmaddata);
-	if (ret_val) {
-		pr_err("snd_intelmad_jack failed\n");
-		goto free_card;
-	}
-	intelmaddata->adc_address = mid_initialize_adc();
-
-	/*create work queue for jack interrupt*/
-	INIT_WORK(&intelmaddata->mad_jack_msg.wq,
-		sst_process_mad_jack_detection);
-
-	intelmaddata->mad_jack_wq = create_workqueue("sst_mad_jack_wq");
-	if (!intelmaddata->mad_jack_wq)
-		goto free_card;
-
-	ret_val = snd_intelmad_register_irq(intelmaddata,
-					info->irq_cache, info->size);
-	if (ret_val) {
-		pr_err("snd_intelmad_register_irq fail\n");
-		goto free_mad_jack_wq;
-	}
-
-	/* internal function call to register device with ALSA */
-	ret_val = snd_intelmad_create(intelmaddata, card);
-	if (ret_val) {
-		pr_err("snd_intelmad_create failed\n");
-		goto set_pvt_data;
-	}
-	card->private_data = &intelmaddata;
-	snd_card_set_dev(card, &pdev->dev);
-	ret_val = snd_card_register(card);
-	if (ret_val) {
-		pr_err("snd_card_register failed\n");
-		goto set_pvt_data;
-	}
-	if (pdev->dev.platform_data) {
-		int gpio_amp = *(int *)pdev->dev.platform_data;
-		if (gpio_request_one(gpio_amp, GPIOF_OUT_INIT_LOW, "amp power"))
-			gpio_amp = 0;
-		intelmaddata->sstdrv_ops->scard_ops->gpio_amp = gpio_amp;
-	}
-
-	pr_debug("snd_intelmad_probe complete\n");
-	return ret_val;
-
-set_pvt_data:
-	card->private_data = NULL;
-free_mad_jack_wq:
-	destroy_workqueue(intelmaddata->mad_jack_wq);
-free_card:
-	snd_card_free(intelmaddata->card);
-free_sst:
-	unregister_sst_card(intelmaddata->sstdrv_ops);
-set_null_data:
-	platform_set_drvdata(pdev, NULL);
-free_allocs:
-	pr_err("probe failed\n");
-	snd_card_free(card);
-	kfree(intelmaddata->sstdrv_ops);
-	kfree(intelmaddata);
-	return ret_val;
-}
-
-
-static int snd_intelmad_remove(struct platform_device *pdev)
-{
-	struct snd_intelmad *intelmaddata = platform_get_drvdata(pdev);
-
-	if (intelmaddata) {
-		if (intelmaddata->sstdrv_ops->scard_ops->gpio_amp)
-			gpio_free(intelmaddata->sstdrv_ops->scard_ops->gpio_amp);
-		free_irq(intelmaddata->irq, intelmaddata);
-		snd_card_free(intelmaddata->card);
-	}
-	intelmad_drv = NULL;
-	platform_set_drvdata(pdev, NULL);
-	return 0;
-}
-
-/*********************************************************************
- *		Driver initialization and exit
- *********************************************************************/
-static const struct platform_device_id snd_intelmad_ids[] = {
-	{DRIVER_NAME_MRST, INFO(CPU_CHIP_LINCROFT, AUDINT_BASE, 1)},
-	{DRIVER_NAME_MFLD, INFO(CPU_CHIP_PENWELL, 0xFFFF7FCD, 1)},
-	{"", 0},
-
-};
-
-static struct platform_driver snd_intelmad_driver = {
-	.driver = {
-		.owner = THIS_MODULE,
-		.name = "intel_mid_sound_card",
-	},
-	.id_table = snd_intelmad_ids,
-	.probe = snd_intelmad_probe,
-	.remove = __devexit_p(snd_intelmad_remove),
-};
-
-/*
- * alsa_card_intelmad_init- driver init function
- *
- * This function is called when driver module is inserted
- */
-static int __init alsa_card_intelmad_init(void)
-{
-	pr_debug("mad_init called\n");
-	return platform_driver_register(&snd_intelmad_driver);
-}
-
-/**
- * alsa_card_intelmad_exit- driver exit function
- *
- * This function is called when driver module is removed
- */
-static void __exit alsa_card_intelmad_exit(void)
-{
-	pr_debug("mad_exit called\n");
-	return platform_driver_unregister(&snd_intelmad_driver);
-}
-
-module_init(alsa_card_intelmad_init)
-module_exit(alsa_card_intelmad_exit)
-
diff --git a/drivers/staging/intel_sst/intelmid.h b/drivers/staging/intel_sst/intelmid.h
deleted file mode 100644
index 14a7ba078b7c..000000000000
--- a/drivers/staging/intel_sst/intelmid.h
+++ /dev/null
@@ -1,209 +0,0 @@
-/*
- *  intelmid.h - Intel Sound card driver for MID
- *
- *  Copyright (C) 2008-10 Intel Corp
- *  Authors:	Harsha Priya <priya.harsha@intel.com>
- *		Vinod Koul <vinod.koul@intel.com>
- *		Dharageswari R <dharageswari.r@intel.com>
- *		KP Jeeja <jeeja.kp@intel.com>
- *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation version 2 of the License.
- *
- *  This program is distributed in the hope that it will be useful, but
- *  WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *  ALSA driver header for Intel MAD chipset
- */
-#ifndef __INTELMID_H
-#define __INTELMID_H
-
-#include <linux/time.h>
-#include <sound/jack.h>
-
-#define DRIVER_NAME_MFLD "msic_audio"
-#define DRIVER_NAME_MRST "pmic_audio"
-#define DRIVER_NAME "intelmid_audio"
-#define PMIC_SOUND_IRQ_TYPE_MASK (1 << 15)
-#define AUDINT_BASE (0xFFFFEFF8 + (6 * sizeof(u8)))
-#define REG_IRQ
-/* values #defined   */
-/* will differ for different hw - to be taken from config  */
-#define MAX_DEVICES		1
-#define MIN_RATE		8000
-#define MAX_RATE		48000
-#define MAX_BUFFER		(800*1024) /* for PCM */
-#define MIN_BUFFER		(800*1024)
-#define MAX_PERIODS		(1024*2)
-#define MIN_PERIODS		2
-#define MAX_PERIOD_BYTES MAX_BUFFER
-#define MIN_PERIOD_BYTES 32
-/*#define MIN_PERIOD_BYTES 160*/
-#define MAX_MUTE		1
-#define MIN_MUTE		0
-#define MONO_CNTL		1
-#define STEREO_CNTL		2
-#define MIN_CHANNEL		1
-#define MAX_CHANNEL_AMIC	2
-#define MAX_CHANNEL_DMIC	5
-#define FIFO_SIZE		0 /* fifo not being used */
-#define INTEL_MAD		"Intel MAD"
-#define MAX_CTRL_MRST		8
-#define MAX_CTRL_MFLD		7
-#define MAX_CTRL		8
-#define MAX_VENDORS		4
-/* TODO +6 db */
-#define MAX_VOL		64
-/* TODO -57 db */
-#define MIN_VOL		0
-#define PLAYBACK_COUNT  1
-#define CAPTURE_COUNT	1
-#define ADC_ONE_LSB_MULTIPLIER 2346
-
-#define MID_JACK_HS_LONG_PRESS SND_JACK_BTN_0
-#define MID_JACK_HS_SHORT_PRESS SND_JACK_BTN_1
-
-extern int	sst_card_vendor_id;
-
-struct mad_jack {
-	struct snd_jack jack;
-	int jack_status;
-	int jack_dev_state;
-	struct timeval buttonpressed;
-	struct timeval  buttonreleased;
-};
-
-struct mad_jack_msg_wq {
-	u8 intsts;
-	struct snd_intelmad *intelmaddata;
-	struct work_struct	wq;
-
-};
-
-struct snd_intelmad_probe_info {
-	unsigned int cpu_id;
-	unsigned int irq_cache;
-	unsigned int size;
-};
-
-/**
- * struct snd_intelmad - intelmad driver structure
- *
- * @card: ptr to the card details
- * @card_index: sound card index
- * @card_id: sound card id detected
- * @sstdrv_ops: ptr to sst driver ops
- * @pdev: ptr to platform device
- * @irq: interrupt number detected
- * @pmic_status: Device status of sound card
- * @int_base: ptr to MMIO interrupt region
- * @output_sel: device selected as o/p
- * @input_sel: device selected as i/p
- * @master_mute: master mute status
- * @jack: jack status
- * @playback_cnt: active pb streams
- * @capture_cnt: active cp streams
- * @mad_jack_msg: wq struct for jack interrupt processing
- * @mad_jack_wq: wq for jack interrupt processing
- * @jack_prev_state: Previos state of jack detected
- * @cpu_id: current cpu id loaded for
- */
-struct snd_intelmad {
-	struct snd_card	*card; /* ptr to the card details */
-	int		card_index;/*  card index  */
-	char		*card_id; /* card id */
-	struct intel_sst_card_ops *sstdrv_ops;/* ptr to sst driver ops */
-	struct platform_device *pdev;
-	int irq;
-	int pmic_status;
-	void __iomem *int_base;
-	int output_sel;
-	int input_sel;
-	int lineout_sel;
-	int master_mute;
-	struct mad_jack jack[4];
-	int playback_cnt;
-	int capture_cnt;
-	u16 adc_address;
-	struct mad_jack_msg_wq  mad_jack_msg;
-	struct workqueue_struct *mad_jack_wq;
-	u8 jack_prev_state;
-	unsigned int cpu_id;
-};
-
-struct snd_control_val {
-	int	playback_vol_max;
-	int	playback_vol_min;
-	int	capture_vol_max;
-	int	capture_vol_min;
-	int	master_vol_max;
-	int	master_vol_min;
-};
-
-struct mad_stream_pvt {
-	int			stream_status;
-	int			stream_ops;
-	struct snd_pcm_substream *substream;
-	struct pcm_stream_info stream_info;
-	ssize_t		dbg_cum_bytes;
-	enum snd_sst_device_type device;
-};
-
-enum mad_drv_status {
-    INIT = 1,
-    STARTED,
-    RUNNING,
-    PAUSED,
-    DROPPED,
-};
-
-enum mad_pmic_status {
-	PMIC_UNINIT = 1,
-	PMIC_INIT,
-};
-enum _widget_ctrl {
-	OUTPUT_SEL = 1,
-	INPUT_SEL,
-	PLAYBACK_VOL,
-	PLAYBACK_MUTE,
-	CAPTURE_VOL,
-	CAPTURE_MUTE,
-	MASTER_VOL,
-	MASTER_MUTE
-};
-enum _widget_ctrl_mfld {
-	LINEOUT_SEL_MFLD = 3,
-};
-enum hw_chs {
-	HW_CH0 = 0,
-	HW_CH1,
-	HW_CH2,
-	HW_CH3
-};
-
-void period_elapsed(void *mad_substream);
-int snd_intelmad_alloc_stream(struct snd_pcm_substream *substream);
-int snd_intelmad_init_stream(struct snd_pcm_substream *substream);
-
-int sst_sc_reg_access(struct sc_reg_access *sc_access,
-					int type, int num_val);
-#define CPU_CHIP_LINCROFT       1 /* System running lincroft */
-#define CPU_CHIP_PENWELL        2 /* System running penwell */
-
-extern struct snd_control_val intelmad_ctrl_val[];
-extern struct snd_kcontrol_new snd_intelmad_controls_mrst[];
-extern struct snd_kcontrol_new snd_intelmad_controls_mfld[];
-extern struct snd_pmic_ops *intelmad_vendor_ops[];
-void sst_mad_send_jack_report(struct snd_jack *jack,
-			int buttonpressevent , int status);
-
-#endif /* __INTELMID_H */
diff --git a/drivers/staging/intel_sst/intelmid_adc_control.h b/drivers/staging/intel_sst/intelmid_adc_control.h
deleted file mode 100644
index 65d5c3988762..000000000000
--- a/drivers/staging/intel_sst/intelmid_adc_control.h
+++ /dev/null
@@ -1,193 +0,0 @@
-#ifndef __INTELMID_ADC_CONTROL_H__
-#define __INTELMID_ADC_CONTROL_H_
-/*
- *  intelmid_adc_control.h - Intel SST Driver for audio engine
- *
- *  Copyright (C) 2008-10 Intel Corporation
- *  Authors:	R Durgadadoss <r.durgadoss@intel.com>
- *		Dharageswari R <dharageswari.r@intel.com>
- *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; version 2 of the License.
- *
- *  This program is distributed in the hope that it will be useful, but
- *  WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  Common private ADC declarations for SST
- */
-
-
-#define MSIC_ADC1CNTL1		0x1C0
-#define MSIC_ADC_ENBL		0x10
-#define MSIC_ADC_START		0x08
-
-#define MSIC_ADC1CNTL3		0x1C2
-#define MSIC_ADCTHERM_ENBL	0x04
-#define MSIC_ADCRRDATA_ENBL	0x05
-
-#define MSIC_STOPBIT_MASK	16
-#define MSIC_ADCTHERM_MASK	4
-
-#define ADC_CHANLS_MAX		15 /* Number of ADC channels */
-#define ADC_LOOP_MAX		(ADC_CHANLS_MAX - 1)
-
-/* ADC channel code values */
-#define AUDIO_DETECT_CODE	0x06
-
-/* ADC base addresses */
-#define ADC_CHNL_START_ADDR	0x1C5	/* increments by 1 */
-#define ADC_DATA_START_ADDR     0x1D4   /* increments by 2 */
-
-
-/**
- * configure_adc - enables/disables the ADC for conversion
- * @val: zero: disables the ADC non-zero:enables the ADC
- *
- * Enable/Disable the ADC depending on the argument
- *
- * Can sleep
- */
-static inline int configure_adc(int val)
-{
-	int ret;
-	struct sc_reg_access sc_access = {0,};
-
-
-	sc_access.reg_addr = MSIC_ADC1CNTL1;
-	ret = sst_sc_reg_access(&sc_access, PMIC_READ, 1);
-	if (ret)
-		return ret;
-
-	if (val)
-		/* Enable and start the ADC */
-		sc_access.value |= (MSIC_ADC_ENBL | MSIC_ADC_START);
-	else
-		/* Just stop the ADC */
-		sc_access.value &= (~MSIC_ADC_START);
-	sc_access.reg_addr = MSIC_ADC1CNTL1;
-	return sst_sc_reg_access(&sc_access, PMIC_WRITE, 1);
-}
-
-/**
- * reset_stopbit - sets the stop bit to 0 on the given channel
- * @addr: address of the channel
- *
- * Can sleep
- */
-static inline int reset_stopbit(uint16_t addr)
-{
-	int ret;
-	struct sc_reg_access sc_access = {0,};
-	sc_access.reg_addr = addr;
-	ret = sst_sc_reg_access(&sc_access, PMIC_READ, 1);
-	if (ret)
-		return ret;
-	/* Set the stop bit to zero */
-	sc_access.reg_addr = addr;
-	sc_access.value = (sc_access.value) & 0xEF;
-	return sst_sc_reg_access(&sc_access, PMIC_WRITE, 1);
-}
-
-/**
- * find_free_channel - finds an empty channel for conversion
- *
- * If the ADC is not enabled then start using 0th channel
- * itself. Otherwise find an empty channel by looking for a
- * channel in which the stopbit is set to 1. returns the index
- * of the first free channel if succeeds or an error code.
- *
- * Context: can sleep
- *
- */
-static inline int find_free_channel(void)
-{
-	int ret;
-	int i;
-
-	struct sc_reg_access sc_access = {0,};
-
-	/* check whether ADC is enabled */
-	sc_access.reg_addr = MSIC_ADC1CNTL1;
-	ret = sst_sc_reg_access(&sc_access, PMIC_READ, 1);
-	if (ret)
-		return ret;
-
-	if ((sc_access.value & MSIC_ADC_ENBL) == 0)
-		return 0;
-
-	/* ADC is already enabled; Looking for an empty channel */
-	for (i = 0; i < ADC_CHANLS_MAX; i++) {
-
-		sc_access.reg_addr = ADC_CHNL_START_ADDR + i;
-		ret = sst_sc_reg_access(&sc_access, PMIC_READ, 1);
-		if (ret)
-			return ret;
-
-		if (sc_access.value & MSIC_STOPBIT_MASK) {
-			ret = i;
-			break;
-		}
-	}
-	return (ret > ADC_LOOP_MAX) ? (-EINVAL) : ret;
-}
-
-/**
- * mid_initialize_adc - initializing the ADC
- * @dev: our device structure
- *
- * Initialize the ADC for reading thermistor values. Can sleep.
- */
-static inline int mid_initialize_adc(void)
-{
-	int base_addr, chnl_addr;
-	int ret;
-	static int channel_index;
-	struct sc_reg_access sc_access = {0,};
-
-	/* Index of the first channel in which the stop bit is set */
-	channel_index = find_free_channel();
-	if (channel_index < 0) {
-		pr_err("No free ADC channels");
-		return channel_index;
-	}
-
-	base_addr = ADC_CHNL_START_ADDR + channel_index;
-
-	if (!(channel_index == 0 || channel_index == ADC_LOOP_MAX)) {
-		/* Reset stop bit for channels other than 0 and 12 */
-		ret = reset_stopbit(base_addr);
-		if (ret)
-			return ret;
-
-		/* Index of the first free channel */
-		base_addr++;
-		channel_index++;
-	}
-
-	/* Since this is the last channel, set the stop bit
-	   to 1 by ORing the DIE_SENSOR_CODE with 0x10 */
-	sc_access.reg_addr = base_addr;
-	sc_access.value = AUDIO_DETECT_CODE | 0x10;
-	ret = sst_sc_reg_access(&sc_access, PMIC_WRITE, 1);
-	if (ret) {
-		pr_err("unable to enable ADC");
-		return ret;
-	}
-
-	chnl_addr = ADC_DATA_START_ADDR + 2 * channel_index;
-	pr_debug("mid_initialize : %x", chnl_addr);
-	configure_adc(1);
-	return chnl_addr;
-}
-#endif
-
diff --git a/drivers/staging/intel_sst/intelmid_ctrl.c b/drivers/staging/intel_sst/intelmid_ctrl.c
deleted file mode 100644
index 19ec474b362a..000000000000
--- a/drivers/staging/intel_sst/intelmid_ctrl.c
+++ /dev/null
@@ -1,921 +0,0 @@
-/*
- *  intelmid_ctrl.c - Intel Sound card driver for MID
- *
- *  Copyright (C) 2008-10 Intel Corp
- *  Authors:	Harsha Priya <priya.harsha@intel.com>
- *		Vinod Koul <vinod.koul@intel.com>
- *		Dharageswari R <dharageswari.r@intel.com>
- *		KP Jeeja <jeeja.kp@intel.com>
- *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation version 2 of the License.
- *
- *  This program is distributed in the hope that it will be useful, but
- *  WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *  ALSA driver handling mixer controls for Intel MAD chipset
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <sound/core.h>
-#include <sound/control.h>
-#include "intel_sst.h"
-#include "intel_sst_ioctl.h"
-#include "intelmid_snd_control.h"
-#include "intelmid.h"
-
-#define HW_CH_BASE 4
-
-
-#define HW_CH_0	"Hw1"
-#define HW_CH_1	"Hw2"
-#define HW_CH_2	"Hw3"
-#define HW_CH_3	"Hw4"
-
-static char *router_dmics[] = {	"DMIC1",
-				"DMIC2",
-				"DMIC3",
-				"DMIC4",
-				"DMIC5",
-				"DMIC6"
-				};
-
-static char *out_names_mrst[] = {"Headphones",
-				"Internal speakers"};
-static char *in_names_mrst[] = {"AMIC",
-				"DMIC",
-				"HS_MIC"};
-static char *line_out_names_mfld[] = {"Headset",
-				"IHF    ",
-				"Vibra1 ",
-				"Vibra2 ",
-				"NONE   "};
-static char *out_names_mfld[] = {"Headset ",
-				"EarPiece  "};
-static char *in_names_mfld[] = {"AMIC",
-				"DMIC"};
-
-struct snd_control_val intelmad_ctrl_val[MAX_VENDORS] = {
-	{
-		.playback_vol_max = 63,
-		.playback_vol_min = 0,
-		.capture_vol_max = 63,
-		.capture_vol_min = 0,
-	},
-	{
-		.playback_vol_max = 0,
-		.playback_vol_min = -31,
-		.capture_vol_max = 0,
-		.capture_vol_min = -20,
-	},
-	{
-		.playback_vol_max = 0,
-		.playback_vol_min = -31,
-		.capture_vol_max = 0,
-		.capture_vol_min = -31,
-		.master_vol_max = 0,
-		.master_vol_min = -126,
-	},
-};
-
-/* control path functionalities */
-
-static inline int snd_intelmad_volume_info(struct snd_ctl_elem_info *uinfo,
-					int control_type, int max, int min)
-{
-	WARN_ON(!uinfo);
-
-	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
-	uinfo->count = control_type;
-	uinfo->value.integer.min = min;
-	uinfo->value.integer.max = max;
-	return 0;
-}
-
-/**
-* snd_intelmad_mute_info - provides information about the mute controls
-*
-* @kcontrol:	pointer to the control
-* @uinfo:	pointer to the structure where the control's info need
-*		to be filled
-*
-* This function is called when a mixer application requests for control's info
-*/
-static int snd_intelmad_mute_info(struct snd_kcontrol *kcontrol,
-					struct snd_ctl_elem_info *uinfo)
-{
-	WARN_ON(!uinfo);
-	WARN_ON(!kcontrol);
-
-	/* set up the mute as a boolean mono control with min-max values */
-	uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
-	uinfo->count = MONO_CNTL;
-	uinfo->value.integer.min = MIN_MUTE;
-	uinfo->value.integer.max = MAX_MUTE;
-	return 0;
-}
-
-/**
-* snd_intelmad_capture_volume_info - provides info about the volume control
-*
-* @kcontrol:	pointer to the control
-* @uinfo:	pointer to the structure where the control's info need
-*		to be filled
-*
-* This function is called when a mixer application requests for control's info
-*/
-static int snd_intelmad_capture_volume_info(struct snd_kcontrol *kcontrol,
-					struct snd_ctl_elem_info *uinfo)
-{
-	snd_intelmad_volume_info(uinfo, MONO_CNTL,
-		intelmad_ctrl_val[sst_card_vendor_id].capture_vol_max,
-		intelmad_ctrl_val[sst_card_vendor_id].capture_vol_min);
-	return 0;
-}
-
-/**
-* snd_intelmad_playback_volume_info - provides info about the volume control
-*
-* @kcontrol:	pointer to the control
-* @uinfo:	pointer to the structure where the control's info need
-*		to be filled
-*
-* This function is called when a mixer application requests for control's info
-*/
-static int snd_intelmad_playback_volume_info(struct snd_kcontrol *kcontrol,
-					struct snd_ctl_elem_info *uinfo)
-{
-	snd_intelmad_volume_info(uinfo, STEREO_CNTL,
-		intelmad_ctrl_val[sst_card_vendor_id].playback_vol_max,
-		intelmad_ctrl_val[sst_card_vendor_id].playback_vol_min);
-	return 0;
-}
-
-static int snd_intelmad_master_volume_info(struct snd_kcontrol *kcontrol,
-					struct snd_ctl_elem_info *uinfo)
-{
-	snd_intelmad_volume_info(uinfo, STEREO_CNTL,
-		intelmad_ctrl_val[sst_card_vendor_id].master_vol_max,
-		intelmad_ctrl_val[sst_card_vendor_id].master_vol_min);
-	return 0;
-}
-
-/**
-* snd_intelmad_device_info_mrst - provides information about the devices available
-*
-* @kcontrol:	pointer to the control
-* @uinfo:	pointer to the structure where the devices's info need
-*		to be filled
-*
-* This function is called when a mixer application requests for device's info
-*/
-static int snd_intelmad_device_info_mrst(struct snd_kcontrol *kcontrol,
-					struct snd_ctl_elem_info *uinfo)
-{
-
-	WARN_ON(!kcontrol);
-	WARN_ON(!uinfo);
-
-	/* setup device select as drop down controls with different values */
-	if (kcontrol->id.numid == OUTPUT_SEL)
-		uinfo->value.enumerated.items = ARRAY_SIZE(out_names_mrst);
-	else
-		uinfo->value.enumerated.items = ARRAY_SIZE(in_names_mrst);
-	uinfo->count = MONO_CNTL;
-	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
-
-	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
-		uinfo->value.enumerated.item = 1;
-	if (kcontrol->id.numid == OUTPUT_SEL)
-		strncpy(uinfo->value.enumerated.name,
-			out_names_mrst[uinfo->value.enumerated.item],
-			sizeof(uinfo->value.enumerated.name)-1);
-	else
-		strncpy(uinfo->value.enumerated.name,
-			in_names_mrst[uinfo->value.enumerated.item],
-			sizeof(uinfo->value.enumerated.name)-1);
-	return 0;
-}
-
-static int snd_intelmad_device_info_mfld(struct snd_kcontrol *kcontrol,
-					struct snd_ctl_elem_info *uinfo)
-{
-	struct snd_pmic_ops *scard_ops;
-	struct snd_intelmad *intelmaddata;
-
-	WARN_ON(!kcontrol);
-	WARN_ON(!uinfo);
-
-	intelmaddata = kcontrol->private_data;
-
-	WARN_ON(!intelmaddata->sstdrv_ops);
-
-	scard_ops = intelmaddata->sstdrv_ops->scard_ops;
-	/* setup device select as drop down controls with different values */
-	if (kcontrol->id.numid == OUTPUT_SEL)
-		uinfo->value.enumerated.items = ARRAY_SIZE(out_names_mfld);
-	else if (kcontrol->id.numid == INPUT_SEL)
-		uinfo->value.enumerated.items = ARRAY_SIZE(in_names_mfld);
-	else if (kcontrol->id.numid == LINEOUT_SEL_MFLD) {
-		uinfo->value.enumerated.items = ARRAY_SIZE(line_out_names_mfld);
-		scard_ops->line_out_names_cnt = uinfo->value.enumerated.items;
-	} else
-		return -EINVAL;
-	uinfo->count = MONO_CNTL;
-	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
-
-	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
-		uinfo->value.enumerated.item = 1;
-	if (kcontrol->id.numid == OUTPUT_SEL)
-		strncpy(uinfo->value.enumerated.name,
-			out_names_mfld[uinfo->value.enumerated.item],
-			sizeof(uinfo->value.enumerated.name)-1);
-	else if (kcontrol->id.numid == INPUT_SEL)
-		strncpy(uinfo->value.enumerated.name,
-			in_names_mfld[uinfo->value.enumerated.item],
-			sizeof(uinfo->value.enumerated.name)-1);
-	else if (kcontrol->id.numid == LINEOUT_SEL_MFLD)
-		strncpy(uinfo->value.enumerated.name,
-			line_out_names_mfld[uinfo->value.enumerated.item],
-			sizeof(uinfo->value.enumerated.name)-1);
-	else
-		return -EINVAL;
-	return 0;
-}
-
-/**
-* snd_intelmad_volume_get - gets the current volume for the control
-*
-* @kcontrol:	pointer to the control
-* @uval:	pointer to the structure where the control's info need
-*		to be filled
-*
-* This function is called when .get function of a control is invoked from app
-*/
-static int snd_intelmad_volume_get(struct snd_kcontrol *kcontrol,
-				struct snd_ctl_elem_value *uval)
-{
-	int ret_val = 0, cntl_list[2] = {0,};
-	int value = 0;
-	struct snd_intelmad *intelmaddata;
-	struct snd_pmic_ops *scard_ops;
-
-	pr_debug("snd_intelmad_volume_get called\n");
-
-	WARN_ON(!uval);
-	WARN_ON(!kcontrol);
-
-	intelmaddata = kcontrol->private_data;
-
-	WARN_ON(!intelmaddata->sstdrv_ops);
-
-	scard_ops = intelmaddata->sstdrv_ops->scard_ops;
-
-	WARN_ON(!scard_ops);
-
-	switch (kcontrol->id.numid) {
-	case PLAYBACK_VOL:
-		cntl_list[0] = PMIC_SND_RIGHT_PB_VOL;
-		cntl_list[1] = PMIC_SND_LEFT_PB_VOL;
-		break;
-
-	case CAPTURE_VOL:
-		cntl_list[0] = PMIC_SND_CAPTURE_VOL;
-		break;
-
-	case MASTER_VOL:
-		cntl_list[0] = PMIC_SND_RIGHT_MASTER_VOL;
-		cntl_list[1] = PMIC_SND_LEFT_MASTER_VOL;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	ret_val = scard_ops->get_vol(cntl_list[0], &value);
-	uval->value.integer.value[0] = value;
-
-	if (ret_val)
-		return ret_val;
-
-	if (kcontrol->id.numid == PLAYBACK_VOL ||
-		kcontrol->id.numid == MASTER_VOL) {
-		ret_val = scard_ops->get_vol(cntl_list[1], &value);
-		uval->value.integer.value[1] = value;
-	}
-	return ret_val;
-}
-
-/**
-* snd_intelmad_mute_get - gets the current mute status for the control
-*
-* @kcontrol:	pointer to the control
-* @uval:	pointer to the structure where the control's info need
-*		to be filled
-*
-* This function is called when .get function of a control is invoked from app
-*/
-static int snd_intelmad_mute_get(struct snd_kcontrol *kcontrol,
-					struct snd_ctl_elem_value *uval)
-{
-
-	int cntl_list = 0, ret_val = 0;
-	u8 value = 0;
-	struct snd_intelmad *intelmaddata;
-	struct snd_pmic_ops *scard_ops;
-
-	pr_debug("Mute_get called\n");
-
-	WARN_ON(!uval);
-	WARN_ON(!kcontrol);
-
-	intelmaddata = kcontrol->private_data;
-
-	WARN_ON(!intelmaddata->sstdrv_ops);
-
-	scard_ops = intelmaddata->sstdrv_ops->scard_ops;
-
-	WARN_ON(!scard_ops);
-
-	switch (kcontrol->id.numid) {
-	case PLAYBACK_MUTE:
-		if (intelmaddata->output_sel == STEREO_HEADPHONE)
-			cntl_list = PMIC_SND_LEFT_HP_MUTE;
-		else if ((intelmaddata->output_sel == INTERNAL_SPKR) ||
-			(intelmaddata->output_sel == MONO_EARPIECE))
-			cntl_list = PMIC_SND_LEFT_SPEAKER_MUTE;
-		break;
-
-	case CAPTURE_MUTE:
-		if (intelmaddata->input_sel == DMIC)
-			cntl_list = PMIC_SND_DMIC_MUTE;
-		else if (intelmaddata->input_sel == AMIC)
-			cntl_list = PMIC_SND_AMIC_MUTE;
-		else if (intelmaddata->input_sel == HS_MIC)
-			cntl_list = PMIC_SND_HP_MIC_MUTE;
-		break;
-	case MASTER_MUTE:
-		uval->value.integer.value[0] = intelmaddata->master_mute;
-		return 0;
-	default:
-		return -EINVAL;
-	}
-
-	ret_val = scard_ops->get_mute(cntl_list, &value);
-	uval->value.integer.value[0] = value;
-	return ret_val;
-}
-
-/**
-* snd_intelmad_volume_set - sets the volume control's info
-*
-* @kcontrol:	pointer to the control
-* @uval:	pointer to the structure where the control's info is
-*		available to be set
-*
-* This function is called when .set function of a control is invoked from app
-*/
-static int snd_intelmad_volume_set(struct snd_kcontrol *kcontrol,
-					struct snd_ctl_elem_value *uval)
-{
-
-	int ret_val, cntl_list[2] = {0,};
-	struct snd_intelmad *intelmaddata;
-	struct snd_pmic_ops *scard_ops;
-
-	pr_debug("volume set called:%ld %ld\n",
-			uval->value.integer.value[0],
-			uval->value.integer.value[1]);
-
-	WARN_ON(!uval);
-	WARN_ON(!kcontrol);
-
-	intelmaddata = kcontrol->private_data;
-
-	WARN_ON(!intelmaddata->sstdrv_ops);
-
-	scard_ops = intelmaddata->sstdrv_ops->scard_ops;
-
-	WARN_ON(!scard_ops);
-
-	switch (kcontrol->id.numid) {
-	case PLAYBACK_VOL:
-		cntl_list[0] = PMIC_SND_LEFT_PB_VOL;
-		cntl_list[1] = PMIC_SND_RIGHT_PB_VOL;
-		break;
-
-	case CAPTURE_VOL:
-		cntl_list[0] = PMIC_SND_CAPTURE_VOL;
-		break;
-
-	case MASTER_VOL:
-		cntl_list[0] = PMIC_SND_LEFT_MASTER_VOL;
-		cntl_list[1] = PMIC_SND_RIGHT_MASTER_VOL;
-		break;
-
-	default:
-		return -EINVAL;
-	}
-
-	ret_val = scard_ops->set_vol(cntl_list[0],
-				uval->value.integer.value[0]);
-	if (ret_val)
-		return ret_val;
-
-	if (kcontrol->id.numid == PLAYBACK_VOL ||
-		kcontrol->id.numid == MASTER_VOL)
-		ret_val = scard_ops->set_vol(cntl_list[1],
-				uval->value.integer.value[1]);
-	return ret_val;
-}
-
-/**
-* snd_intelmad_mute_set - sets the mute control's info
-*
-* @kcontrol:	pointer to the control
-* @uval:	pointer to the structure where the control's info is
-*		available to be set
-*
-* This function is called when .set function of a control is invoked from app
-*/
-static int snd_intelmad_mute_set(struct snd_kcontrol *kcontrol,
-					struct snd_ctl_elem_value *uval)
-{
-	int cntl_list[2] = {0,}, ret_val;
-	struct snd_intelmad *intelmaddata;
-	struct snd_pmic_ops *scard_ops;
-
-	pr_debug("snd_intelmad_mute_set called\n");
-
-	WARN_ON(!uval);
-	WARN_ON(!kcontrol);
-
-	intelmaddata = kcontrol->private_data;
-
-	WARN_ON(!intelmaddata->sstdrv_ops);
-
-	scard_ops = intelmaddata->sstdrv_ops->scard_ops;
-
-	WARN_ON(!scard_ops);
-
-	kcontrol->private_value = uval->value.integer.value[0];
-
-	switch (kcontrol->id.numid) {
-	case PLAYBACK_MUTE:
-		if (intelmaddata->output_sel == STEREO_HEADPHONE) {
-			cntl_list[0] = PMIC_SND_LEFT_HP_MUTE;
-			cntl_list[1] = PMIC_SND_RIGHT_HP_MUTE;
-		} else if ((intelmaddata->output_sel == INTERNAL_SPKR) ||
-				(intelmaddata->output_sel == MONO_EARPIECE)) {
-			cntl_list[0] = PMIC_SND_LEFT_SPEAKER_MUTE;
-			cntl_list[1] = PMIC_SND_RIGHT_SPEAKER_MUTE;
-		}
-		break;
-
-	case CAPTURE_MUTE:/*based on sel device mute the i/p dev*/
-		if (intelmaddata->input_sel == DMIC)
-			cntl_list[0] = PMIC_SND_DMIC_MUTE;
-		else if (intelmaddata->input_sel == AMIC)
-			cntl_list[0] = PMIC_SND_AMIC_MUTE;
-		else if (intelmaddata->input_sel == HS_MIC)
-			cntl_list[0] = PMIC_SND_HP_MIC_MUTE;
-		break;
-	case MASTER_MUTE:
-		cntl_list[0] = PMIC_SND_MUTE_ALL;
-		intelmaddata->master_mute = uval->value.integer.value[0];
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	ret_val = scard_ops->set_mute(cntl_list[0],
-				uval->value.integer.value[0]);
-	if (ret_val)
-		return ret_val;
-
-	if (kcontrol->id.numid == PLAYBACK_MUTE)
-		ret_val = scard_ops->set_mute(cntl_list[1],
-					uval->value.integer.value[0]);
-	return ret_val;
-}
-
-/**
-* snd_intelmad_device_get - get the device select control's info
-*
-* @kcontrol:	pointer to the control
-* @uval:	pointer to the structure where the control's info is
-*		to be filled
-*
-* This function is called when .get function of a control is invoked from app
-*/
-static int snd_intelmad_device_get(struct snd_kcontrol *kcontrol,
-					struct snd_ctl_elem_value *uval)
-{
-	struct snd_intelmad *intelmaddata;
-	struct snd_pmic_ops *scard_ops;
-	pr_debug("device_get called\n");
-
-	WARN_ON(!uval);
-	WARN_ON(!kcontrol);
-
-	intelmaddata = kcontrol->private_data;
-	scard_ops = intelmaddata->sstdrv_ops->scard_ops;
-	if (intelmaddata->cpu_id == CPU_CHIP_PENWELL) {
-		if (kcontrol->id.numid == OUTPUT_SEL)
-			uval->value.enumerated.item[0] =
-					scard_ops->output_dev_id;
-		else if (kcontrol->id.numid == INPUT_SEL)
-			uval->value.enumerated.item[0] =
-					scard_ops->input_dev_id;
-		else if (kcontrol->id.numid == LINEOUT_SEL_MFLD)
-			uval->value.enumerated.item[0] =
-					scard_ops->lineout_dev_id;
-		else
-			return -EINVAL;
-	} else if (intelmaddata->cpu_id == CPU_CHIP_LINCROFT) {
-		if (kcontrol->id.numid == OUTPUT_SEL)
-			/* There is a mismatch here.
-			 * ALSA expects 1 for internal speaker.
-			 * But internally, we may give 2 for internal speaker.
-			 */
-			if (scard_ops->output_dev_id == MONO_EARPIECE ||
-			    scard_ops->output_dev_id == INTERNAL_SPKR)
-				uval->value.enumerated.item[0] = MONO_EARPIECE;
-			else if (scard_ops->output_dev_id == STEREO_HEADPHONE)
-				uval->value.enumerated.item[0] =
-					STEREO_HEADPHONE;
-			else
-				return -EINVAL;
-		else if (kcontrol->id.numid == INPUT_SEL)
-			uval->value.enumerated.item[0] =
-					scard_ops->input_dev_id;
-		else
-			return -EINVAL;
-	} else
-	uval->value.enumerated.item[0] = kcontrol->private_value;
-	return 0;
-}
-
-/**
-* snd_intelmad_device_set - set the device select control's info
-*
-* @kcontrol:	pointer to the control
-* @uval:	pointer to the structure where the control's info is
-*		available to be set
-*
-* This function is called when .set function of a control is invoked from app
-*/
-static int snd_intelmad_device_set(struct snd_kcontrol *kcontrol,
-					struct snd_ctl_elem_value *uval)
-{
-	struct snd_intelmad *intelmaddata;
-	struct snd_pmic_ops *scard_ops;
-	int ret_val = 0, vendor, status;
-	struct intel_sst_pcm_control *pcm_control;
-
-	pr_debug("snd_intelmad_device_set called\n");
-
-	WARN_ON(!uval);
-	WARN_ON(!kcontrol);
-	status = -1;
-
-	intelmaddata = kcontrol->private_data;
-
-	WARN_ON(!intelmaddata->sstdrv_ops);
-
-	scard_ops = intelmaddata->sstdrv_ops->scard_ops;
-
-	WARN_ON(!scard_ops);
-
-	/* store value with driver */
-	kcontrol->private_value = uval->value.enumerated.item[0];
-
-	switch (kcontrol->id.numid) {
-	case OUTPUT_SEL:
-		ret_val = scard_ops->set_output_dev(
-				uval->value.enumerated.item[0]);
-		intelmaddata->output_sel = uval->value.enumerated.item[0];
-		break;
-	case INPUT_SEL:
-		vendor = intelmaddata->sstdrv_ops->vendor_id;
-		if ((vendor == SND_MX) || (vendor == SND_FS)) {
-			pcm_control = intelmaddata->sstdrv_ops->pcm_control;
-			if (uval->value.enumerated.item[0] == HS_MIC)
-				status = 1;
-			else
-				status = 0;
-			pcm_control->device_control(
-					SST_ENABLE_RX_TIME_SLOT, &status);
-		}
-		ret_val = scard_ops->set_input_dev(
-				uval->value.enumerated.item[0]);
-		intelmaddata->input_sel = uval->value.enumerated.item[0];
-		break;
-	case LINEOUT_SEL_MFLD:
-		ret_val = scard_ops->set_lineout_dev(
-					uval->value.enumerated.item[0]);
-		intelmaddata->lineout_sel = uval->value.enumerated.item[0];
-		break;
-	default:
-		return -EINVAL;
-	}
-	kcontrol->private_value = uval->value.enumerated.item[0];
-	return ret_val;
-}
-
-static int snd_intelmad_device_dmic_get(struct snd_kcontrol *kcontrol,
-					struct snd_ctl_elem_value *uval)
-{
-	struct snd_intelmad *intelmaddata;
-	struct snd_pmic_ops *scard_ops;
-
-	WARN_ON(!uval);
-	WARN_ON(!kcontrol);
-
-	intelmaddata = kcontrol->private_data;
-	scard_ops = intelmaddata->sstdrv_ops->scard_ops;
-
-	if (scard_ops->input_dev_id != DMIC) {
-		pr_debug("input dev = 0x%x\n", scard_ops->input_dev_id);
-		return 0;
-	}
-
-	if (intelmaddata->cpu_id == CPU_CHIP_PENWELL)
-		uval->value.enumerated.item[0] = kcontrol->private_value;
-	else
-		pr_debug(" CPU id = 0x%xis invalid.\n",
-			intelmaddata->cpu_id);
-	return 0;
-}
-
-void msic_set_bit(u8 index, unsigned int *available_dmics)
-{
-	*available_dmics |= (1 << index);
-}
-
-void msic_clear_bit(u8 index, unsigned int *available_dmics)
-{
-	*available_dmics &= ~(1 << index);
-}
-
-int msic_is_set_bit(u8 index, unsigned int *available_dmics)
-{
-	int ret_val;
-
-	ret_val = (*available_dmics & (1 << index));
-	return ret_val;
-}
-
-static int snd_intelmad_device_dmic_set(struct snd_kcontrol *kcontrol,
-					struct snd_ctl_elem_value *uval)
-{
-	struct snd_intelmad *intelmaddata;
-	struct snd_pmic_ops *scard_ops;
-	int i, dmic_index;
-	unsigned int available_dmics;
-	int jump_count;
-	int max_dmics = ARRAY_SIZE(router_dmics);
-
-	WARN_ON(!uval);
-	WARN_ON(!kcontrol);
-
-	intelmaddata = kcontrol->private_data;
-	WARN_ON(!intelmaddata->sstdrv_ops);
-
-	scard_ops = intelmaddata->sstdrv_ops->scard_ops;
-	WARN_ON(!scard_ops);
-
-	if (scard_ops->input_dev_id != DMIC) {
-		pr_debug("input dev = 0x%x\n", scard_ops->input_dev_id);
-		return 0;
-	}
-
-	available_dmics = scard_ops->available_dmics;
-
-	if (kcontrol->private_value > uval->value.enumerated.item[0]) {
-		pr_debug("jump count -1.\n");
-		jump_count = -1;
-	} else {
-		pr_debug("jump count 1.\n");
-		jump_count = 1;
-	}
-
-	dmic_index =  uval->value.enumerated.item[0];
-	pr_debug("set function. dmic_index = %d, avl_dmic = 0x%x\n",
-			 dmic_index, available_dmics);
-	for (i = 0; i < max_dmics; i++) {
-		pr_debug("set function. loop index = 0x%x.  dmic_index = 0x%x\n",
-			 i, dmic_index);
-		if (!msic_is_set_bit(dmic_index, &available_dmics)) {
-			msic_clear_bit(kcontrol->private_value,
-						&available_dmics);
-			msic_set_bit(dmic_index, &available_dmics);
-			kcontrol->private_value = dmic_index;
-			scard_ops->available_dmics = available_dmics;
-			scard_ops->hw_dmic_map[kcontrol->id.numid-HW_CH_BASE] =
-				kcontrol->private_value;
-			scard_ops->set_hw_dmic_route
-				(kcontrol->id.numid-HW_CH_BASE);
-			return 0;
-		}
-
-		dmic_index += jump_count;
-
-		if (dmic_index > (max_dmics - 1) && jump_count == 1) {
-			pr_debug("Resettingthe dmic index to 0.\n");
-			dmic_index = 0;
-		} else if (dmic_index == -1 && jump_count == -1) {
-			pr_debug("Resetting the dmic index to 5.\n");
-			dmic_index = max_dmics - 1;
-		}
-	}
-
-	return -EINVAL;
-}
-
-static int snd_intelmad_device_dmic_info_mfld(struct snd_kcontrol *kcontrol,
-					struct snd_ctl_elem_info *uinfo)
-{
-	struct snd_intelmad *intelmaddata;
-	struct snd_pmic_ops *scard_ops;
-
-	uinfo->count                  = MONO_CNTL;
-	uinfo->type                   = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
-	uinfo->value.enumerated.items = ARRAY_SIZE(router_dmics);
-
-	intelmaddata = kcontrol->private_data;
-	WARN_ON(!intelmaddata->sstdrv_ops);
-
-	scard_ops = intelmaddata->sstdrv_ops->scard_ops;
-	WARN_ON(!scard_ops);
-
-	if (uinfo->value.enumerated.item >= uinfo->value.enumerated.items)
-		uinfo->value.enumerated.item =
-			uinfo->value.enumerated.items - 1;
-
-	strncpy(uinfo->value.enumerated.name,
-	router_dmics[uinfo->value.enumerated.item],
-	sizeof(uinfo->value.enumerated.name)-1);
-
-
-	msic_set_bit(kcontrol->private_value, &scard_ops->available_dmics);
-	pr_debug("info function. avl_dmic = 0x%x",
-		scard_ops->available_dmics);
-
-	scard_ops->hw_dmic_map[kcontrol->id.numid-HW_CH_BASE] =
-		kcontrol->private_value;
-
-	return 0;
-}
-
-struct snd_kcontrol_new snd_intelmad_controls_mrst[MAX_CTRL] __devinitdata = {
-{
-	.iface		=	SNDRV_CTL_ELEM_IFACE_MIXER,
-	.name		=	"PCM Playback Source",
-	.access		=	SNDRV_CTL_ELEM_ACCESS_READWRITE,
-	.info		=	snd_intelmad_device_info_mrst,
-	.get		=	snd_intelmad_device_get,
-	.put		=	snd_intelmad_device_set,
-	.private_value	=	0,
-},
-{
-	.iface		=	SNDRV_CTL_ELEM_IFACE_MIXER,
-	.name		=	"PCM Capture Source",
-	.access		=	SNDRV_CTL_ELEM_ACCESS_READWRITE,
-	.info		=	snd_intelmad_device_info_mrst,
-	.get		=	snd_intelmad_device_get,
-	.put		=	snd_intelmad_device_set,
-	.private_value	=	0,
-},
-{
-	.iface		=	SNDRV_CTL_ELEM_IFACE_MIXER,
-	.name		=	"PCM Playback Volume",
-	.access		=	SNDRV_CTL_ELEM_ACCESS_READWRITE,
-	.info		=	snd_intelmad_playback_volume_info,
-	.get		=	snd_intelmad_volume_get,
-	.put		=	snd_intelmad_volume_set,
-	.private_value	=	0,
-},
-{
-	.iface		=	SNDRV_CTL_ELEM_IFACE_MIXER,
-	.name		=	"PCM Playback Switch",
-	.access		=	SNDRV_CTL_ELEM_ACCESS_READWRITE,
-	.info		=	snd_intelmad_mute_info,
-	.get		=	snd_intelmad_mute_get,
-	.put		=	snd_intelmad_mute_set,
-	.private_value	=	0,
-},
-{
-	.iface		=	SNDRV_CTL_ELEM_IFACE_MIXER,
-	.name		=	"PCM Capture Volume",
-	.access		=	SNDRV_CTL_ELEM_ACCESS_READWRITE,
-	.info		=	snd_intelmad_capture_volume_info,
-	.get		=	snd_intelmad_volume_get,
-	.put		=	snd_intelmad_volume_set,
-	.private_value	=	0,
-},
-{
-	.iface		=	SNDRV_CTL_ELEM_IFACE_MIXER,
-	.name		=	"PCM Capture Switch",
-	.access		=	SNDRV_CTL_ELEM_ACCESS_READWRITE,
-	.info		=	snd_intelmad_mute_info,
-	.get		=	snd_intelmad_mute_get,
-	.put		=	snd_intelmad_mute_set,
-	.private_value	=	0,
-},
-{
-	.iface		=	SNDRV_CTL_ELEM_IFACE_MIXER,
-	.name		=	"Master Playback Volume",
-	.access		=	SNDRV_CTL_ELEM_ACCESS_READWRITE,
-	.info		=	snd_intelmad_master_volume_info,
-	.get		=	snd_intelmad_volume_get,
-	.put		=	snd_intelmad_volume_set,
-	.private_value	=	0,
-},
-{
-	.iface		=	SNDRV_CTL_ELEM_IFACE_MIXER,
-	.name		=	"Master Playback Switch",
-	.access		=	SNDRV_CTL_ELEM_ACCESS_READWRITE,
-	.info		=	snd_intelmad_mute_info,
-	.get		=	snd_intelmad_mute_get,
-	.put		=	snd_intelmad_mute_set,
-	.private_value	=	0,
-},
-};
-
-struct snd_kcontrol_new
-snd_intelmad_controls_mfld[MAX_CTRL_MFLD] __devinitdata = {
-{
-	.iface		=	SNDRV_CTL_ELEM_IFACE_MIXER,
-	.name		=	"PCM Playback Source",
-	.access		=	SNDRV_CTL_ELEM_ACCESS_READWRITE,
-	.info		=	snd_intelmad_device_info_mfld,
-	.get		=	snd_intelmad_device_get,
-	.put		=	snd_intelmad_device_set,
-	.private_value	=	0,
-},
-{
-	.iface		=	SNDRV_CTL_ELEM_IFACE_MIXER,
-	.name		=	"PCM Capture Source",
-	.access		=	SNDRV_CTL_ELEM_ACCESS_READWRITE,
-	.info		=	snd_intelmad_device_info_mfld,
-	.get		=	snd_intelmad_device_get,
-	.put		=	snd_intelmad_device_set,
-	.private_value	=	0,
-},
-{
-	.iface		=	SNDRV_CTL_ELEM_IFACE_MIXER,
-	.name		=	"Line out",
-	.access		=	SNDRV_CTL_ELEM_ACCESS_READWRITE,
-	.info		=	snd_intelmad_device_info_mfld,
-	.get		=	snd_intelmad_device_get,
-	.put		=	snd_intelmad_device_set,
-	.private_value	=	0,
-},
-{
-	.iface		=	SNDRV_CTL_ELEM_IFACE_MIXER,
-	.name		=	HW_CH_0,
-	.access		=	SNDRV_CTL_ELEM_ACCESS_READWRITE,
-	.info		=	snd_intelmad_device_dmic_info_mfld,
-	.get		=	snd_intelmad_device_dmic_get,
-	.put		=	snd_intelmad_device_dmic_set,
-	.private_value	=	0
-},
-{
-	.iface		=	SNDRV_CTL_ELEM_IFACE_MIXER,
-	.name		=	HW_CH_1,
-	.access		=	SNDRV_CTL_ELEM_ACCESS_READWRITE,
-	.info		=	snd_intelmad_device_dmic_info_mfld,
-	.get		=	snd_intelmad_device_dmic_get,
-	.put		=	snd_intelmad_device_dmic_set,
-	.private_value	=	1
-},
-{
-	.iface		=	SNDRV_CTL_ELEM_IFACE_MIXER,
-	.name		=	HW_CH_2,
-	.access		=	SNDRV_CTL_ELEM_ACCESS_READWRITE,
-	.info		=	snd_intelmad_device_dmic_info_mfld,
-	.get		=	snd_intelmad_device_dmic_get,
-	.put		=	snd_intelmad_device_dmic_set,
-	.private_value	=	2
-},
-{
-	.iface		=	SNDRV_CTL_ELEM_IFACE_MIXER,
-	.name		=	HW_CH_3,
-	.access		=	SNDRV_CTL_ELEM_ACCESS_READWRITE,
-	.info		=	snd_intelmad_device_dmic_info_mfld,
-	.get		=	snd_intelmad_device_dmic_get,
-	.put		=	snd_intelmad_device_dmic_set,
-	.private_value	=	3
-}
-};
-
diff --git a/drivers/staging/intel_sst/intelmid_msic_control.c b/drivers/staging/intel_sst/intelmid_msic_control.c
deleted file mode 100644
index 70cdb1697815..000000000000
--- a/drivers/staging/intel_sst/intelmid_msic_control.c
+++ /dev/null
@@ -1,1047 +0,0 @@
-/*
- *  intelmid_vm_control.c - Intel Sound card driver for MID
- *
- *  Copyright (C) 2010 Intel Corp
- *  Authors:	Vinod Koul <vinod.koul@intel.com>
- *
- *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; version 2 of the License.
- *
- *  This program is distributed in the hope that it will be useful, but
- *  WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- * This file contains the control operations of msic vendors
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/pci.h>
-#include <linux/file.h>
-#include <linux/delay.h>
-#include <sound/control.h>
-#include "intel_sst.h"
-#include <linux/input.h>
-#include "intelmid_snd_control.h"
-#include "intelmid.h"
-
-#define AUDIOMUX12  0x24c
-#define AUDIOMUX34  0x24d
-
-static int msic_init_card(void)
-{
-	struct sc_reg_access sc_access[] = {
-		/* dmic configuration */
-		{0x241, 0x85, 0},
-		{0x242, 0x02, 0},
-		/* audio paths config */
-		{0x24C, 0x10, 0},
-		{0x24D, 0x32, 0},
-		/* PCM2 interface slots */
-		/* preconfigured slots for 0-5 both tx, rx */
-		{0x272, 0x10, 0},
-		{0x273, 0x32, 0},
-		{0x274, 0xFF, 0},
-		{0x275, 0x10, 0},
-		{0x276, 0x32, 0},
-		{0x277, 0x54, 0},
-		/*Sinc5 decimator*/
-		{0x24E, 0x28, 0},
-		/*TI vibra w/a settings*/
-		{0x384, 0x80, 0},
-		{0x385, 0x80, 0},
-		{0x267, 0x00, 0},
-		{0x261, 0x00, 0},
-		/* pcm port setting */
-		{0x278, 0x00, 0},
-		{0x27B, 0x01, 0},
-		{0x27C, 0x0a, 0},
-		/* Set vol HSLRVOLCTRL, IHFVOL */
-		{0x259, 0x08, 0},
-		{0x25A, 0x08, 0},
-		{0x25B, 0x08, 0},
-		{0x25C, 0x08, 0},
-		/* HSEPRXCTRL  Enable the headset left and right FIR filters  */
-		{0x250, 0x30, 0},
-		/* HSMIXER */
-		{0x256, 0x11, 0},
-		/* amic configuration */
-		{0x249, 0x01, 0x0},
-		{0x24A, 0x01, 0x0},
-		/* unmask ocaudio/accdet interrupts */
-		{0x1d, 0x00, 0x00},
-		{0x1e, 0x00, 0x00},
-	};
-	snd_msic_ops.card_status = SND_CARD_INIT_DONE;
-	sst_sc_reg_access(sc_access, PMIC_WRITE, 28);
-	snd_msic_ops.pb_on = 0;
-	snd_msic_ops.pbhs_on = 0;
-	snd_msic_ops.cap_on = 0;
-	snd_msic_ops.input_dev_id = DMIC; /*def dev*/
-	snd_msic_ops.output_dev_id = STEREO_HEADPHONE;
-	snd_msic_ops.jack_interrupt_status = false;
-	pr_debug("msic init complete!!\n");
-	return 0;
-}
-static int msic_line_out_restore(u8 value)
-{
-	struct sc_reg_access hs_drv_en[] = {
-		{0x25d, 0x03, 0x03},
-	};
-	struct sc_reg_access ep_drv_en[] = {
-		{0x25d, 0x40, 0x40},
-	};
-	struct sc_reg_access ihf_drv_en[] = {
-		{0x25d, 0x0c, 0x0c},
-	};
-	struct sc_reg_access vib1_drv_en[] = {
-		{0x25d, 0x10, 0x10},
-	};
-	struct sc_reg_access vib2_drv_en[] = {
-		{0x25d, 0x20, 0x20},
-	};
-	struct sc_reg_access pmode_enable[] = {
-		{0x381, 0x10, 0x10},
-	};
-	int retval = 0;
-
-	pr_debug("msic_lineout_restore_lineout_dev:%d\n", value);
-
-	switch (value) {
-	case HEADSET:
-		pr_debug("Selecting Lineout-HEADSET-restore\n");
-		if (snd_msic_ops.output_dev_id == STEREO_HEADPHONE)
-			retval = sst_sc_reg_access(hs_drv_en,
-							PMIC_READ_MODIFY, 1);
-		else
-			retval = sst_sc_reg_access(ep_drv_en,
-							PMIC_READ_MODIFY, 1);
-		break;
-	case IHF:
-		pr_debug("Selecting Lineout-IHF-restore\n");
-		retval = sst_sc_reg_access(ihf_drv_en, PMIC_READ_MODIFY, 1);
-		if (retval)
-			return retval;
-		retval = sst_sc_reg_access(pmode_enable, PMIC_READ_MODIFY, 1);
-		break;
-	case VIBRA1:
-		pr_debug("Selecting Lineout-Vibra1-restore\n");
-		retval = sst_sc_reg_access(vib1_drv_en, PMIC_READ_MODIFY, 1);
-		break;
-	case VIBRA2:
-		pr_debug("Selecting Lineout-VIBRA2-restore\n");
-		retval = sst_sc_reg_access(vib2_drv_en, PMIC_READ_MODIFY, 1);
-		break;
-	case NONE:
-		pr_debug("Selecting Lineout-NONE-restore\n");
-		break;
-	default:
-		return -EINVAL;
-	}
-	return retval;
-}
-static int msic_get_lineout_prvstate(void)
-{
-	struct sc_reg_access hs_ihf_drv[2] = {
-		{0x257, 0x0, 0x0},
-		{0x25d, 0x0, 0x0},
-	};
-	struct sc_reg_access vib1drv[2] = {
-		{0x264, 0x0, 0x0},
-		{0x25D, 0x0, 0x0},
-	};
-	struct sc_reg_access vib2drv[2] = {
-		{0x26A, 0x0, 0x0},
-		{0x25D, 0x0, 0x0},
-	};
-	int retval = 0, drv_en, dac_en, dev_id, mask;
-	for (dev_id = 0; dev_id < snd_msic_ops.line_out_names_cnt; dev_id++) {
-		switch (dev_id) {
-		case HEADSET:
-			pr_debug("msic_get_lineout_prvs_state: HEADSET\n");
-			sst_sc_reg_access(hs_ihf_drv, PMIC_READ, 2);
-
-			mask = (MASK0|MASK1);
-			dac_en = (hs_ihf_drv[0].value) & mask;
-
-			mask = ((MASK0|MASK1)|MASK6);
-			drv_en = (hs_ihf_drv[1].value) & mask;
-
-			if (dac_en && (!drv_en)) {
-				snd_msic_ops.prev_lineout_dev_id = HEADSET;
-				return retval;
-			}
-			break;
-		case IHF:
-			pr_debug("msic_get_lineout_prvstate: IHF\n");
-			sst_sc_reg_access(hs_ihf_drv, PMIC_READ, 2);
-
-			mask = (MASK2 | MASK3);
-			dac_en = (hs_ihf_drv[0].value) & mask;
-
-			mask = (MASK2 | MASK3);
-			drv_en = (hs_ihf_drv[1].value) & mask;
-
-			if (dac_en && (!drv_en)) {
-				snd_msic_ops.prev_lineout_dev_id = IHF;
-				return retval;
-			}
-			break;
-		case VIBRA1:
-			pr_debug("msic_get_lineout_prvstate: vibra1\n");
-			sst_sc_reg_access(vib1drv, PMIC_READ, 2);
-
-			mask = MASK1;
-			dac_en = (vib1drv[0].value) & mask;
-
-			mask = MASK4;
-			drv_en = (vib1drv[1].value) & mask;
-
-			if (dac_en && (!drv_en)) {
-				snd_msic_ops.prev_lineout_dev_id = VIBRA1;
-				return retval;
-			}
-			break;
-		case VIBRA2:
-			pr_debug("msic_get_lineout_prvstate: vibra2\n");
-			sst_sc_reg_access(vib2drv, PMIC_READ, 2);
-
-			mask = MASK1;
-			dac_en = (vib2drv[0].value) & mask;
-
-			mask = MASK5;
-			drv_en = ((vib2drv[1].value) & mask);
-
-			if (dac_en && (!drv_en)) {
-				snd_msic_ops.prev_lineout_dev_id = VIBRA2;
-				return retval;
-			}
-			break;
-		case NONE:
-			pr_debug("msic_get_lineout_prvstate: NONE\n");
-			snd_msic_ops.prev_lineout_dev_id = NONE;
-			return retval;
-		default:
-			pr_debug("Invalid device id\n");
-			snd_msic_ops.prev_lineout_dev_id = NONE;
-			return -EINVAL;
-		}
-	}
-	return retval;
-}
-static int msic_set_selected_lineout_dev(u8 value)
-{
-	struct sc_reg_access lout_hs[] = {
-		{0x25e, 0x33, 0xFF},
-		{0x25d, 0x0, 0x43},
-	};
-	struct sc_reg_access lout_ihf[] = {
-		{0x25e, 0x55, 0xff},
-		{0x25d, 0x0, 0x0c},
-	};
-	struct sc_reg_access lout_vibra1[] = {
-
-		{0x25e, 0x61, 0xff},
-		{0x25d, 0x0, 0x10},
-	};
-	struct sc_reg_access lout_vibra2[] = {
-
-		{0x25e, 0x16, 0xff},
-		{0x25d, 0x0, 0x20},
-	};
-	struct sc_reg_access lout_def[] = {
-		{0x25e, 0x66, 0x0},
-	};
-	struct sc_reg_access pmode_disable[] = {
-		{0x381, 0x00, 0x10},
-	};
-	struct sc_reg_access pmode_enable[] = {
-		{0x381, 0x10, 0x10},
-	};
-	int retval = 0;
-
-	pr_debug("msic_set_selected_lineout_dev:%d\n", value);
-	msic_get_lineout_prvstate();
-	msic_line_out_restore(snd_msic_ops.prev_lineout_dev_id);
-	snd_msic_ops.lineout_dev_id = value;
-
-	switch (value) {
-	case HEADSET:
-		pr_debug("Selecting Lineout-HEADSET\n");
-		if (snd_msic_ops.pb_on)
-			retval = sst_sc_reg_access(lout_hs,
-					PMIC_READ_MODIFY, 2);
-			if (retval)
-				return retval;
-			retval = sst_sc_reg_access(pmode_disable,
-					PMIC_READ_MODIFY, 1);
-		break;
-	case IHF:
-		pr_debug("Selecting Lineout-IHF\n");
-		if (snd_msic_ops.pb_on)
-			retval = sst_sc_reg_access(lout_ihf,
-							PMIC_READ_MODIFY, 2);
-			if (retval)
-				return retval;
-			retval = sst_sc_reg_access(pmode_enable,
-					PMIC_READ_MODIFY, 1);
-		break;
-	case VIBRA1:
-		pr_debug("Selecting Lineout-Vibra1\n");
-		if (snd_msic_ops.pb_on)
-			retval = sst_sc_reg_access(lout_vibra1,
-							PMIC_READ_MODIFY, 2);
-			if (retval)
-				return retval;
-			retval = sst_sc_reg_access(pmode_disable,
-					PMIC_READ_MODIFY, 1);
-		break;
-	case VIBRA2:
-		pr_debug("Selecting Lineout-VIBRA2\n");
-		if (snd_msic_ops.pb_on)
-			retval = sst_sc_reg_access(lout_vibra2,
-							PMIC_READ_MODIFY, 2);
-			if (retval)
-				return retval;
-			retval = sst_sc_reg_access(pmode_disable,
-					PMIC_READ_MODIFY, 1);
-		break;
-	case NONE:
-		pr_debug("Selecting Lineout-NONE\n");
-			retval = sst_sc_reg_access(lout_def,
-							PMIC_WRITE, 1);
-			if (retval)
-				return retval;
-			retval = sst_sc_reg_access(pmode_disable,
-					PMIC_READ_MODIFY, 1);
-		break;
-	default:
-		return -EINVAL;
-	}
-	return retval;
-}
-
-
-static int msic_power_up_pb(unsigned int device)
-{
-	struct sc_reg_access vaud[] = {
-		/* turn on the audio power supplies */
-		{0x0DB, 0x07, 0},
-	};
-	struct sc_reg_access pll[] = {
-		/* turn on PLL */
-		{0x240, 0x20, 0},
-	};
-	struct sc_reg_access vhs[] = {
-		/*  VHSP */
-		{0x0DC, 0x3D, 0},
-		/*  VHSN */
-		{0x0DD, 0x3F, 0},
-	};
-	struct sc_reg_access hsdac[] = {
-		{0x382, 0x40, 0x40},
-		/*  disable driver */
-		{0x25D, 0x0, 0x43},
-		/* DAC CONFIG ; both HP, LP on */
-		{0x257, 0x03, 0x03},
-	};
-	struct sc_reg_access hs_filter[] = {
-		/* HSEPRXCTRL  Enable the headset left and right FIR filters  */
-		{0x250, 0x30, 0},
-		/* HSMIXER */
-		{0x256, 0x11, 0},
-	};
-	struct sc_reg_access hs_enable[] = {
-		/* enable driver */
-		{0x25D, 0x3, 0x3},
-		{0x26C, 0x0, 0x2},
-		/* unmute the headset */
-		{ 0x259, 0x80, 0x80},
-		{ 0x25A, 0x80, 0x80},
-	};
-	struct sc_reg_access vihf[] = {
-		/*  VIHF ON */
-		{0x0C9, 0x27, 0x00},
-	};
-	struct sc_reg_access ihf_filter[] = {
-		/*  disable driver */
-		{0x25D, 0x00, 0x0C},
-		/*Filer DAC enable*/
-		{0x251, 0x03, 0x03},
-		{0x257, 0x0C, 0x0C},
-	};
-	struct sc_reg_access ihf_en[] = {
-		/*enable drv*/
-		{0x25D, 0x0C, 0x0c},
-	};
-	struct sc_reg_access ihf_unmute[] = {
-		/*unmute headset*/
-		{0x25B, 0x80, 0x80},
-		{0x25C, 0x80, 0x80},
-	};
-	struct sc_reg_access epdac[] = {
-		/*  disable driver */
-		{0x25D, 0x0, 0x43},
-		/* DAC CONFIG ; both HP, LP on */
-		{0x257, 0x03, 0x03},
-	};
-	struct sc_reg_access ep_enable[] = {
-		/* enable driver */
-		{0x25D, 0x40, 0x40},
-		/* unmute the headset */
-		{ 0x259, 0x80, 0x80},
-		{ 0x25A, 0x80, 0x80},
-	};
-	struct sc_reg_access vib1_en[] = {
-		/* enable driver, ADC */
-		{0x25D, 0x10, 0x10},
-		{0x264, 0x02, 0x82},
-	};
-	struct sc_reg_access vib2_en[] = {
-		/* enable driver, ADC */
-		{0x25D, 0x20, 0x20},
-		{0x26A, 0x02, 0x82},
-	};
-	struct sc_reg_access pcm2_en[] = {
-		/* enable pcm 2 */
-		{0x27C, 0x1, 0x1},
-	};
-	int retval = 0;
-
-	if (snd_msic_ops.card_status == SND_CARD_UN_INIT) {
-		retval = msic_init_card();
-		if (retval)
-			return retval;
-	}
-
-	pr_debug("powering up pb.... Device %d\n", device);
-	sst_sc_reg_access(vaud, PMIC_WRITE, 1);
-	msleep(1);
-	sst_sc_reg_access(pll, PMIC_WRITE, 1);
-	msleep(1);
-	switch (device) {
-	case SND_SST_DEVICE_HEADSET:
-		snd_msic_ops.pb_on = 1;
-		snd_msic_ops.pbhs_on = 1;
-		if (snd_msic_ops.output_dev_id == STEREO_HEADPHONE) {
-			sst_sc_reg_access(vhs, PMIC_WRITE, 2);
-			sst_sc_reg_access(hsdac, PMIC_READ_MODIFY, 3);
-			sst_sc_reg_access(hs_filter, PMIC_WRITE, 2);
-			sst_sc_reg_access(hs_enable, PMIC_READ_MODIFY, 4);
-		} else {
-			sst_sc_reg_access(epdac, PMIC_READ_MODIFY, 2);
-			sst_sc_reg_access(hs_filter, PMIC_WRITE, 2);
-			sst_sc_reg_access(ep_enable, PMIC_READ_MODIFY, 3);
-		}
-		if (snd_msic_ops.lineout_dev_id == HEADSET)
-			msic_set_selected_lineout_dev(HEADSET);
-		break;
-	case SND_SST_DEVICE_IHF:
-		snd_msic_ops.pb_on = 1;
-		sst_sc_reg_access(vihf, PMIC_WRITE, 1);
-		sst_sc_reg_access(ihf_filter, PMIC_READ_MODIFY, 3);
-		sst_sc_reg_access(ihf_en, PMIC_READ_MODIFY, 1);
-		sst_sc_reg_access(ihf_unmute, PMIC_READ_MODIFY, 2);
-		if (snd_msic_ops.lineout_dev_id == IHF)
-			msic_set_selected_lineout_dev(IHF);
-		break;
-
-	case SND_SST_DEVICE_VIBRA:
-		snd_msic_ops.pb_on = 1;
-		sst_sc_reg_access(vib1_en, PMIC_READ_MODIFY, 2);
-		if (snd_msic_ops.lineout_dev_id == VIBRA1)
-			msic_set_selected_lineout_dev(VIBRA1);
-		break;
-
-	case SND_SST_DEVICE_HAPTIC:
-		snd_msic_ops.pb_on = 1;
-		sst_sc_reg_access(vib2_en, PMIC_READ_MODIFY, 2);
-		if (snd_msic_ops.lineout_dev_id == VIBRA2)
-			msic_set_selected_lineout_dev(VIBRA2);
-		break;
-
-	default:
-		pr_warn("Wrong Device %d, selected %d\n",
-			       device, snd_msic_ops.output_dev_id);
-	}
-	return sst_sc_reg_access(pcm2_en, PMIC_READ_MODIFY, 1);
-}
-
-static int msic_power_up_cp(unsigned int device)
-{
-	struct sc_reg_access vaud[] = {
-		/* turn on the audio power supplies */
-		{0x0DB, 0x07, 0},
-	};
-	struct sc_reg_access pll[] = {
-		/* turn on PLL */
-		{0x240, 0x20, 0},
-	};
-	struct sc_reg_access dmic_bias[] = {
-		/*  Turn on AMIC supply  */
-		{0x247, 0xA0, 0xA0},
-	};
-	struct sc_reg_access dmic[] = {
-		/* mic demux enable */
-		{0x245, 0x3F, 0x3F},
-		{0x246, 0x07, 0x07},
-
-	};
-	struct sc_reg_access amic_bias[] = {
-		/*  Turn on AMIC supply  */
-		{0x247, 0xFC, 0xFC},
-	};
-	struct sc_reg_access amic[] = {
-		/*MIC EN*/
-		{0x249, 0x01, 0x01},
-		{0x24A, 0x01, 0x01},
-		/*ADC EN*/
-		{0x248, 0x05, 0x0F},
-
-	};
-	struct sc_reg_access pcm2[] = {
-		/* enable pcm 2 */
-		{0x27C, 0x1, 0x1},
-	};
-	struct sc_reg_access tx_on[] = {
-		/*wait for mic to stabalize before turning on audio channels*/
-		{0x24F, 0x3C, 0x0},
-	};
-	int retval = 0;
-
-	if (snd_msic_ops.card_status == SND_CARD_UN_INIT) {
-		retval = msic_init_card();
-		if (retval)
-			return retval;
-	}
-
-	pr_debug("powering up cp....%d\n", snd_msic_ops.input_dev_id);
-	sst_sc_reg_access(vaud, PMIC_WRITE, 1);
-	msleep(500);/*FIXME need optimzed value here*/
-	sst_sc_reg_access(pll, PMIC_WRITE, 1);
-	msleep(1);
-	snd_msic_ops.cap_on = 1;
-	if (snd_msic_ops.input_dev_id == AMIC) {
-		sst_sc_reg_access(amic_bias, PMIC_READ_MODIFY, 1);
-		msleep(1);
-		sst_sc_reg_access(amic, PMIC_READ_MODIFY, 3);
-	} else {
-		sst_sc_reg_access(dmic_bias, PMIC_READ_MODIFY, 1);
-		msleep(1);
-		sst_sc_reg_access(dmic, PMIC_READ_MODIFY, 2);
-	}
-	msleep(1);
-	sst_sc_reg_access(tx_on, PMIC_WRITE, 1);
-	return sst_sc_reg_access(pcm2, PMIC_READ_MODIFY, 1);
-}
-
-static int msic_power_down(void)
-{
-	struct sc_reg_access power_dn[] = {
-		/*  VHSP */
-		{0x0DC, 0xC4, 0},
-		/*  VHSN */
-		{0x0DD, 0x04, 0},
-		/*  VIHF */
-		{0x0C9, 0x24, 0},
-	};
-	struct sc_reg_access pll[] = {
-		/* turn off PLL*/
-		{0x240, 0x00, 0x0},
-	};
-	struct sc_reg_access vaud[] = {
-		/* turn off VAUD*/
-		{0x0DB, 0x04, 0},
-	};
-
-	pr_debug("powering dn msic\n");
-	snd_msic_ops.pbhs_on = 0;
-	snd_msic_ops.pb_on = 0;
-	snd_msic_ops.cap_on = 0;
-	sst_sc_reg_access(power_dn, PMIC_WRITE, 3);
-	msleep(1);
-	sst_sc_reg_access(pll, PMIC_WRITE, 1);
-	msleep(1);
-	sst_sc_reg_access(vaud, PMIC_WRITE, 1);
-	return 0;
-}
-
-static int msic_power_down_pb(unsigned int device)
-{
-	struct sc_reg_access drv_enable[] = {
-		{0x25D, 0x00, 0x00},
-	};
-	struct sc_reg_access hs_mute[] = {
-		{0x259, 0x80, 0x80},
-		{0x25A, 0x80, 0x80},
-		{0x26C, 0x02, 0x02},
-	};
-	struct sc_reg_access hs_off[] = {
-		{0x257, 0x00, 0x03},
-		{0x250, 0x00, 0x30},
-		{0x382, 0x00, 0x40},
-	};
-	struct sc_reg_access ihf_mute[] = {
-		{0x25B, 0x80, 0x80},
-		{0x25C, 0x80, 0x80},
-	};
-	struct sc_reg_access ihf_off[] = {
-		{0x257, 0x00, 0x0C},
-		{0x251, 0x00, 0x03},
-	};
-	struct sc_reg_access vib1_off[] = {
-		{0x264, 0x00, 0x82},
-	};
-	struct sc_reg_access vib2_off[] = {
-		{0x26A, 0x00, 0x82},
-	};
-	struct sc_reg_access lout_off[] = {
-		{0x25e, 0x66, 0x00},
-	};
-	struct sc_reg_access pmode_disable[] = {
-		{0x381, 0x00, 0x10},
-	};
-
-
-
-	pr_debug("powering dn pb for device %d\n", device);
-	switch (device) {
-	case SND_SST_DEVICE_HEADSET:
-		snd_msic_ops.pbhs_on = 0;
-		sst_sc_reg_access(hs_mute, PMIC_READ_MODIFY, 3);
-		drv_enable[0].mask = 0x43;
-		sst_sc_reg_access(drv_enable, PMIC_READ_MODIFY, 1);
-		sst_sc_reg_access(hs_off, PMIC_READ_MODIFY, 3);
-		if (snd_msic_ops.lineout_dev_id == HEADSET)
-			sst_sc_reg_access(lout_off, PMIC_WRITE, 1);
-		break;
-
-	case SND_SST_DEVICE_IHF:
-		sst_sc_reg_access(ihf_mute, PMIC_READ_MODIFY, 2);
-		drv_enable[0].mask = 0x0C;
-		sst_sc_reg_access(drv_enable, PMIC_READ_MODIFY, 1);
-		sst_sc_reg_access(ihf_off, PMIC_READ_MODIFY, 2);
-		if (snd_msic_ops.lineout_dev_id == IHF) {
-			sst_sc_reg_access(lout_off, PMIC_WRITE, 1);
-			sst_sc_reg_access(pmode_disable, PMIC_READ_MODIFY, 1);
-		}
-		break;
-
-	case SND_SST_DEVICE_VIBRA:
-		sst_sc_reg_access(vib1_off, PMIC_READ_MODIFY, 1);
-		drv_enable[0].mask = 0x10;
-		sst_sc_reg_access(drv_enable, PMIC_READ_MODIFY, 1);
-		if (snd_msic_ops.lineout_dev_id == VIBRA1)
-			sst_sc_reg_access(lout_off, PMIC_WRITE, 1);
-		break;
-
-	case SND_SST_DEVICE_HAPTIC:
-		sst_sc_reg_access(vib2_off, PMIC_READ_MODIFY, 1);
-		drv_enable[0].mask = 0x20;
-		sst_sc_reg_access(drv_enable, PMIC_READ_MODIFY, 1);
-		if (snd_msic_ops.lineout_dev_id == VIBRA2)
-			sst_sc_reg_access(lout_off, PMIC_WRITE, 1);
-		break;
-	}
-	return 0;
-}
-
-static int msic_power_down_cp(unsigned int device)
-{
-	struct sc_reg_access dmic[] = {
-		{0x247, 0x00, 0xA0},
-		{0x245, 0x00, 0x38},
-		{0x246, 0x00, 0x07},
-	};
-	struct sc_reg_access amic[] = {
-		{0x248, 0x00, 0x05},
-		{0x249, 0x00, 0x01},
-		{0x24A, 0x00, 0x01},
-		{0x247, 0x00, 0xA3},
-	};
-	struct sc_reg_access tx_off[] = {
-		{0x24F, 0x00, 0x3C},
-	};
-
-	pr_debug("powering dn cp....\n");
-	snd_msic_ops.cap_on = 0;
-	sst_sc_reg_access(tx_off, PMIC_READ_MODIFY, 1);
-	if (snd_msic_ops.input_dev_id == DMIC)
-		sst_sc_reg_access(dmic, PMIC_READ_MODIFY, 3);
-	else
-		sst_sc_reg_access(amic, PMIC_READ_MODIFY, 4);
-	return 0;
-}
-
-static int msic_set_selected_output_dev(u8 value)
-{
-	int retval = 0;
-
-	pr_debug("msic set selected output:%d\n", value);
-	snd_msic_ops.output_dev_id = value;
-	if (snd_msic_ops.pbhs_on)
-		msic_power_up_pb(SND_SST_DEVICE_HEADSET);
-	return retval;
-}
-
-static int msic_set_selected_input_dev(u8 value)
-{
-
-	struct sc_reg_access sc_access_dmic[] = {
-		{0x24C, 0x10, 0x0},
-	};
-	struct sc_reg_access sc_access_amic[] = {
-		{0x24C, 0x76, 0x0},
-
-	};
-	int retval = 0;
-
-	pr_debug("msic_set_selected_input_dev:%d\n", value);
-	snd_msic_ops.input_dev_id = value;
-	switch (value) {
-	case AMIC:
-		pr_debug("Selecting AMIC1\n");
-		retval = sst_sc_reg_access(sc_access_amic, PMIC_WRITE, 1);
-		break;
-	case DMIC:
-		pr_debug("Selecting DMIC1\n");
-		retval = sst_sc_reg_access(sc_access_dmic, PMIC_WRITE, 1);
-		break;
-	default:
-		return -EINVAL;
-
-	}
-	if (snd_msic_ops.cap_on)
-		retval = msic_power_up_cp(SND_SST_DEVICE_CAPTURE);
-	return retval;
-}
-
-static int msic_set_hw_dmic_route(u8 hw_ch_index)
-{
-	struct sc_reg_access sc_access_router;
-	int    retval = -EINVAL;
-
-	switch (hw_ch_index) {
-	case HW_CH0:
-		sc_access_router.reg_addr = AUDIOMUX12;
-		sc_access_router.value    = snd_msic_ops.hw_dmic_map[0];
-		sc_access_router.mask     = (MASK2 | MASK1 | MASK0);
-		pr_debug("hw_ch0.  value = 0x%x\n",
-				sc_access_router.value);
-		retval = sst_sc_reg_access(&sc_access_router,
-				PMIC_READ_MODIFY, 1);
-		break;
-
-	case HW_CH1:
-		sc_access_router.reg_addr = AUDIOMUX12;
-		sc_access_router.value    = (snd_msic_ops.hw_dmic_map[1]) << 4;
-		sc_access_router.mask     = (MASK6 | MASK5 | MASK4);
-		pr_debug("### hw_ch1.  value = 0x%x\n",
-				sc_access_router.value);
-		retval = sst_sc_reg_access(&sc_access_router,
-				PMIC_READ_MODIFY, 1);
-		break;
-
-	case HW_CH2:
-		sc_access_router.reg_addr = AUDIOMUX34;
-		sc_access_router.value    = snd_msic_ops.hw_dmic_map[2];
-		sc_access_router.mask     = (MASK2 | MASK1 | MASK0);
-		pr_debug("hw_ch2.  value = 0x%x\n",
-				sc_access_router.value);
-		retval = sst_sc_reg_access(&sc_access_router,
-				PMIC_READ_MODIFY, 1);
-		break;
-
-	case HW_CH3:
-		sc_access_router.reg_addr = AUDIOMUX34;
-		sc_access_router.value    = (snd_msic_ops.hw_dmic_map[3]) << 4;
-		sc_access_router.mask     = (MASK6 | MASK5 | MASK4);
-		pr_debug("hw_ch3.  value = 0x%x\n",
-				sc_access_router.value);
-		retval = sst_sc_reg_access(&sc_access_router,
-				PMIC_READ_MODIFY, 1);
-		break;
-	}
-
-	return retval;
-}
-
-
-static int msic_set_pcm_voice_params(void)
-{
-	return 0;
-}
-
-static int msic_set_pcm_audio_params(int sfreq, int word_size, int num_channel)
-{
-	return 0;
-}
-
-static int msic_set_audio_port(int status)
-{
-	return 0;
-}
-
-static int msic_set_voice_port(int status)
-{
-	return 0;
-}
-
-static int msic_set_mute(int dev_id, u8 value)
-{
-	return 0;
-}
-
-static int msic_set_vol(int dev_id, int value)
-{
-	return 0;
-}
-
-static int msic_get_mute(int dev_id, u8 *value)
-{
-	return 0;
-}
-
-static int msic_get_vol(int dev_id, int *value)
-{
-	return 0;
-}
-
-static int msic_set_headset_state(int state)
-{
-	struct sc_reg_access hs_enable[] = {
-		{0x25D, 0x03, 0x03},
-	};
-
-	if (state)
-		/*enable*/
-		sst_sc_reg_access(hs_enable, PMIC_READ_MODIFY, 1);
-	else {
-		hs_enable[0].value = 0;
-		sst_sc_reg_access(hs_enable, PMIC_READ_MODIFY, 1);
-	}
-	return 0;
-}
-
-static int msic_enable_mic_bias(void)
-{
-	struct sc_reg_access jack_interrupt_reg[] = {
-		{0x0DB, 0x07, 0x00},
-
-	};
-	struct sc_reg_access jack_bias_reg[] = {
-		{0x247, 0x0C, 0x0C},
-	};
-
-	sst_sc_reg_access(jack_interrupt_reg, PMIC_WRITE, 1);
-	sst_sc_reg_access(jack_bias_reg, PMIC_READ_MODIFY, 1);
-	return 0;
-}
-
-static int msic_disable_mic_bias(void)
-{
-	if (snd_msic_ops.jack_interrupt_status == true)
-		return 0;
-	if (!(snd_msic_ops.pb_on || snd_msic_ops.cap_on))
-		msic_power_down();
-	return 0;
-}
-
-static int msic_disable_jack_btn(void)
-{
-	struct sc_reg_access btn_disable[] = {
-		{0x26C, 0x00, 0x01}
-	};
-
-	if (!(snd_msic_ops.pb_on || snd_msic_ops.cap_on))
-		msic_power_down();
-	snd_msic_ops.jack_interrupt_status = false;
-	return sst_sc_reg_access(btn_disable, PMIC_READ_MODIFY, 1);
-}
-
-static int msic_enable_jack_btn(void)
-{
-	struct sc_reg_access btn_enable[] = {
-			{0x26b, 0x77, 0x00},
-			{0x26C, 0x01, 0x00},
-	};
-	return sst_sc_reg_access(btn_enable, PMIC_WRITE, 2);
-}
-static int msic_convert_adc_to_mvolt(unsigned int mic_bias)
-{
-	return (ADC_ONE_LSB_MULTIPLIER * mic_bias) / 1000;
-}
-int msic_get_headset_state(int mic_bias)
-{
-	struct sc_reg_access msic_hs_toggle[] = {
-		{0x070, 0x00, 0x01},
-	};
-	if (mic_bias >= 0 && mic_bias < 400) {
-
-		pr_debug("Detected Headphone!!!\n");
-		sst_sc_reg_access(msic_hs_toggle, PMIC_READ_MODIFY, 1);
-
-	} else if (mic_bias > 400 && mic_bias < 650) {
-
-		pr_debug("Detected American headset\n");
-		msic_hs_toggle[0].value = 0x01;
-		sst_sc_reg_access(msic_hs_toggle, PMIC_READ_MODIFY, 1);
-
-	} else if (mic_bias >= 650 && mic_bias < 2000) {
-
-		pr_debug("Detected Headset!!!\n");
-		sst_sc_reg_access(msic_hs_toggle, PMIC_READ_MODIFY, 1);
-		/*power on jack and btn*/
-		snd_msic_ops.jack_interrupt_status = true;
-		msic_enable_jack_btn();
-		msic_enable_mic_bias();
-		return SND_JACK_HEADSET;
-
-	} else
-		pr_debug("Detected Open Cable!!!\n");
-
-	return SND_JACK_HEADPHONE;
-}
-
-static int msic_get_mic_bias(void *arg)
-{
-	struct snd_intelmad *intelmad_drv = (struct snd_intelmad *)arg;
-	u16 adc_adr = intelmad_drv->adc_address;
-	u16 adc_val;
-	int ret;
-	struct sc_reg_access adc_ctrl3[2] = {
-			{0x1C2, 0x05, 0x0},
-	};
-
-	struct sc_reg_access audio_adc_reg1 = {0,};
-	struct sc_reg_access audio_adc_reg2 = {0,};
-
-	msic_enable_mic_bias();
-	/* Enable the msic for conversion before reading */
-	ret = sst_sc_reg_access(adc_ctrl3, PMIC_WRITE, 1);
-	if (ret)
-		return ret;
-	adc_ctrl3[0].value = 0x04;
-	/* Re-toggle the RRDATARD bit */
-	ret = sst_sc_reg_access(adc_ctrl3, PMIC_WRITE, 1);
-	if (ret)
-		return ret;
-
-	audio_adc_reg1.reg_addr = adc_adr;
-	/* Read the higher bits of data */
-	msleep(1000);
-	ret = sst_sc_reg_access(&audio_adc_reg1, PMIC_READ, 1);
-	if (ret)
-		return ret;
-	pr_debug("adc read value %x", audio_adc_reg1.value);
-
-	/* Shift bits to accomodate the lower two data bits */
-	adc_val = (audio_adc_reg1.value << 2);
-	adc_adr++;
-	audio_adc_reg2. reg_addr = adc_adr;
-	ret = sst_sc_reg_access(&audio_adc_reg2, PMIC_READ, 1);
-	if (ret)
-		return ret;
-	pr_debug("adc read value %x", audio_adc_reg2.value);
-
-	/* Adding lower two bits to the higher bits */
-	audio_adc_reg2.value &= 03;
-	adc_val += audio_adc_reg2.value;
-
-	pr_debug("ADC value 0x%x", adc_val);
-	msic_disable_mic_bias();
-	return adc_val;
-}
-
-static void msic_pmic_irq_cb(void *cb_data, u8 intsts)
-{
-	struct mad_jack *mjack = NULL;
-	unsigned int present = 0, jack_event_flag = 0, buttonpressflag = 0;
-	struct snd_intelmad *intelmaddata = cb_data;
-	int retval = 0;
-
-	pr_debug("value returned = 0x%x\n", intsts);
-
-	if (snd_msic_ops.card_status == SND_CARD_UN_INIT) {
-		retval = msic_init_card();
-		if (retval)
-			return;
-	  }
-
-	mjack = &intelmaddata->jack[0];
-	if (intsts & 0x1) {
-		pr_debug("MAD short_push detected\n");
-		present = SND_JACK_BTN_0;
-		jack_event_flag = buttonpressflag = 1;
-		mjack->jack.type = SND_JACK_BTN_0;
-		mjack->jack.key[0] = BTN_0 ;
-	}
-
-	if (intsts & 0x2) {
-		pr_debug(":MAD long_push detected\n");
-		jack_event_flag = buttonpressflag = 1;
-		mjack->jack.type = present = SND_JACK_BTN_1;
-		mjack->jack.key[1] = BTN_1;
-	}
-
-	if (intsts & 0x4) {
-		unsigned int mic_bias;
-		jack_event_flag = 1;
-		buttonpressflag = 0;
-		mic_bias = msic_get_mic_bias(intelmaddata);
-		pr_debug("mic_bias = %d\n", mic_bias);
-		mic_bias = msic_convert_adc_to_mvolt(mic_bias);
-		pr_debug("mic_bias after conversion = %d mV\n", mic_bias);
-		mjack->jack_dev_state = msic_get_headset_state(mic_bias);
-		mjack->jack.type = present = mjack->jack_dev_state;
-	}
-
-	if (intsts & 0x8) {
-		mjack->jack.type = mjack->jack_dev_state;
-		present = 0;
-		jack_event_flag = 1;
-		buttonpressflag = 0;
-		msic_disable_jack_btn();
-		msic_disable_mic_bias();
-	}
-	if (jack_event_flag)
-		sst_mad_send_jack_report(&mjack->jack,
-					buttonpressflag, present);
-}
-
-
-
-struct snd_pmic_ops snd_msic_ops = {
-	.set_input_dev	=	msic_set_selected_input_dev,
-	.set_output_dev =	msic_set_selected_output_dev,
-	.set_lineout_dev =	msic_set_selected_lineout_dev,
-	.set_hw_dmic_route =    msic_set_hw_dmic_route,
-	.set_mute	=	msic_set_mute,
-	.get_mute	=	msic_get_mute,
-	.set_vol	=	msic_set_vol,
-	.get_vol	=	msic_get_vol,
-	.init_card	=	msic_init_card,
-	.set_pcm_audio_params	= msic_set_pcm_audio_params,
-	.set_pcm_voice_params	= msic_set_pcm_voice_params,
-	.set_voice_port = msic_set_voice_port,
-	.set_audio_port = msic_set_audio_port,
-	.power_up_pmic_pb =	msic_power_up_pb,
-	.power_up_pmic_cp =	msic_power_up_cp,
-	.power_down_pmic_pb =	msic_power_down_pb,
-	.power_down_pmic_cp =	msic_power_down_cp,
-	.power_down_pmic	=	msic_power_down,
-	.pmic_irq_cb	=	msic_pmic_irq_cb,
-	.pmic_jack_enable = msic_enable_mic_bias,
-	.pmic_get_mic_bias	= msic_get_mic_bias,
-	.pmic_set_headset_state = msic_set_headset_state,
-};
diff --git a/drivers/staging/intel_sst/intelmid_pvt.c b/drivers/staging/intel_sst/intelmid_pvt.c
deleted file mode 100644
index 90e0e64c0ab0..000000000000
--- a/drivers/staging/intel_sst/intelmid_pvt.c
+++ /dev/null
@@ -1,173 +0,0 @@
-/*
- *   intelmid_pvt.h - Intel Sound card driver for MID
- *
- *  Copyright (C) 2008-10 Intel Corp
- *  Authors:	Harsha Priya <priya.harsha@intel.com>
- *		Vinod Koul <vinod.koul@intel.com>
- *		KP Jeeja <jeeja.kp@intel.com>
- *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; version 2 of the License.
- *
- *  This program is distributed in the hope that it will be useful, but
- *  WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- * ALSA driver for Intel MID sound card chipset - holding private functions
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/io.h>
-#include <asm/intel_scu_ipc.h>
-#include <sound/core.h>
-#include <sound/control.h>
-#include <sound/pcm.h>
-#include "intel_sst.h"
-#include "intel_sst_ioctl.h"
-#include "intelmid_snd_control.h"
-#include "intelmid.h"
-
-
-void period_elapsed(void *mad_substream)
-{
-	struct snd_pcm_substream *substream = mad_substream;
-	struct mad_stream_pvt *stream;
-
-
-
-	if (!substream || !substream->runtime)
-		return;
-	stream = substream->runtime->private_data;
-	if (!stream)
-		return;
-
-	if (stream->stream_status != RUNNING)
-		return;
-	pr_debug("calling period elapsed\n");
-	snd_pcm_period_elapsed(substream);
-	return;
-}
-
-
-int snd_intelmad_alloc_stream(struct snd_pcm_substream *substream)
-{
-	struct snd_intelmad *intelmaddata = snd_pcm_substream_chip(substream);
-	struct mad_stream_pvt *stream = substream->runtime->private_data;
-	struct snd_sst_stream_params param = {{{0,},},};
-	struct snd_sst_params str_params = {0};
-	int ret_val;
-
-	/* set codec params and inform SST driver the same */
-
-	param.uc.pcm_params.codec = SST_CODEC_TYPE_PCM;
-	param.uc.pcm_params.num_chan = (u8) substream->runtime->channels;
-	param.uc.pcm_params.pcm_wd_sz = substream->runtime->sample_bits;
-	param.uc.pcm_params.reserved = 0;
-	param.uc.pcm_params.sfreq = substream->runtime->rate;
-	param.uc.pcm_params.ring_buffer_size =
-					snd_pcm_lib_buffer_bytes(substream);
-	param.uc.pcm_params.period_count = substream->runtime->period_size;
-	param.uc.pcm_params.ring_buffer_addr =
-				virt_to_phys(substream->runtime->dma_area);
-	pr_debug("period_cnt = %d\n", param.uc.pcm_params.period_count);
-	pr_debug("sfreq= %d, wd_sz = %d\n",
-		 param.uc.pcm_params.sfreq, param.uc.pcm_params.pcm_wd_sz);
-
-	str_params.sparams = param;
-	str_params.codec = SST_CODEC_TYPE_PCM;
-
-	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
-		str_params.ops = STREAM_OPS_PLAYBACK;
-		pr_debug("Playbck stream,Device %d\n", stream->device);
-	} else {
-		str_params.ops = STREAM_OPS_CAPTURE;
-		stream->device = SND_SST_DEVICE_CAPTURE;
-		pr_debug("Capture stream,Device %d\n", stream->device);
-	}
-	str_params.device_type = stream->device;
-	ret_val = intelmaddata->sstdrv_ops->pcm_control->open(&str_params);
-	pr_debug("sst: SST_SND_PLAY/CAPTURE ret_val = %x\n", ret_val);
-	if (ret_val < 0)
-		return ret_val;
-
-	stream->stream_info.str_id = ret_val;
-	stream->stream_status = INIT;
-	stream->stream_info.buffer_ptr = 0;
-	pr_debug("str id :  %d\n", stream->stream_info.str_id);
-
-	return ret_val;
-}
-
-int snd_intelmad_init_stream(struct snd_pcm_substream *substream)
-{
-	struct mad_stream_pvt *stream = substream->runtime->private_data;
-	struct snd_intelmad *intelmaddata = snd_pcm_substream_chip(substream);
-	int ret_val;
-
-	pr_debug("setting buffer ptr param\n");
-	stream->stream_info.period_elapsed = period_elapsed;
-	stream->stream_info.mad_substream = substream;
-	stream->stream_info.buffer_ptr = 0;
-	stream->stream_info.sfreq = substream->runtime->rate;
-	ret_val = intelmaddata->sstdrv_ops->pcm_control->device_control(
-			SST_SND_STREAM_INIT, &stream->stream_info);
-	if (ret_val)
-		pr_err("control_set ret error %d\n", ret_val);
-	return ret_val;
-
-}
-
-
-/**
- * sst_sc_reg_access - IPC read/write wrapper
- *
- * @sc_access:  array of data, addresses and mask
- * @type: operation type
- * @num_val: number of reg to opertae on
- *
- * Reads/writes/read-modify operations on registers accessed through SCU (sound
- * card and few SST DSP regsisters that are not accissible to IA)
- */
-int sst_sc_reg_access(struct sc_reg_access *sc_access,
-					int type, int num_val)
-{
-	int i, retval = 0;
-	if (type == PMIC_WRITE) {
-		for (i = 0; i < num_val; i++) {
-			retval = intel_scu_ipc_iowrite8(sc_access[i].reg_addr,
-							sc_access[i].value);
-			if (retval)
-				goto err;
-		}
-	} else if (type == PMIC_READ) {
-		for (i = 0; i < num_val; i++) {
-			retval = intel_scu_ipc_ioread8(sc_access[i].reg_addr,
-							&(sc_access[i].value));
-			if (retval)
-				goto err;
-		}
-	} else {
-		for (i = 0; i < num_val; i++) {
-			retval = intel_scu_ipc_update_register(
-				sc_access[i].reg_addr, sc_access[i].value,
-				sc_access[i].mask);
-			if (retval)
-				goto err;
-		}
-	}
-	return 0;
-err:
-	pr_err("IPC failed for cmd %d, %d\n", retval, type);
-	pr_err("reg:0x%2x addr:0x%2x\n",
-		sc_access[i].reg_addr, sc_access[i].value);
- 	return retval;
-}
diff --git a/drivers/staging/intel_sst/intelmid_snd_control.h b/drivers/staging/intel_sst/intelmid_snd_control.h
deleted file mode 100644
index 06ad3a10099c..000000000000
--- a/drivers/staging/intel_sst/intelmid_snd_control.h
+++ /dev/null
@@ -1,123 +0,0 @@
-#ifndef __INTELMID_SND_CTRL_H__
-#define __INTELMID_SND_CTRL_H__
-/*
- *  intelmid_snd_control.h - Intel Sound card driver for MID
- *
- *  Copyright (C) 2008-10 Intel Corporation
- *  Authors:	Vinod Koul <vinod.koul@intel.com>
- *		Harsha Priya <priya.harsha@intel.com>
- *		Dharageswari R <dharageswari.r@intel.com>
- *		KP Jeeja <jeeja.kp@intel.com>
- *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; version 2 of the License.
- *
- *  This program is distributed in the hope that it will be useful, but
- *  WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This file defines all snd control functions
- */
-
-/*
-Mask bits
-*/
-#define MASK0 0x01	/* 0000 0001 */
-#define MASK1 0x02	/* 0000 0010 */
-#define MASK2 0x04	/* 0000 0100 */
-#define MASK3 0x08	/* 0000 1000 */
-#define MASK4 0x10	/* 0001 0000 */
-#define MASK5 0x20	/* 0010 0000 */
-#define MASK6 0x40	/* 0100 0000 */
-#define MASK7 0x80	/* 1000 0000 */
-/*
-value bits
-*/
-#define VALUE0	0x01	/* 0000 0001 */
-#define VALUE1	0x02	/* 0000 0010 */
-#define VALUE2	0x04	/* 0000 0100 */
-#define VALUE3	0x08	/* 0000 1000 */
-#define VALUE4	0x10	/* 0001 0000 */
-#define VALUE5	0x20	/* 0010 0000 */
-#define VALUE6	0x40	/* 0100 0000 */
-#define VALUE7	0x80	/* 1000 0000 */
-
-#define MUTE 0    /* ALSA Passes 0 for mute */
-#define UNMUTE 1  /* ALSA Passes 1 for unmute */
-
-#define MAX_VOL_PMIC_VENDOR0    0x3f /* max vol in dB for stereo & voice DAC */
-#define MIN_VOL_PMIC_VENDOR0    0 /* min vol in dB for stereo & voice DAC */
-/* Head phone volume control  */
-#define MAX_HP_VOL_PMIC_VENDOR1    6 /* max volume in dB for HP */
-#define MIN_HP_VOL_PMIC_VENDOR1    (-84) /* min volume in dB for HP */
-#define MAX_HP_VOL_INDX_PMIC_VENDOR1 40 /* Number of HP volume control values */
-
-/* Mono Earpiece Volume control */
-#define MAX_EP_VOL_PMIC_VENDOR1    0 /* max volume in dB for EP */
-#define MIN_EP_VOL_PMIC_VENDOR1    (-75) /* min volume in dB for EP */
-#define MAX_EP_VOL_INDX_PMIC_VENDOR1 32 /* Number of EP volume control values */
-
-int sst_sc_reg_access(struct sc_reg_access *sc_access,
-					int type, int num_val);
-extern struct snd_pmic_ops snd_pmic_ops_fs;
-extern struct snd_pmic_ops snd_pmic_ops_mx;
-extern struct snd_pmic_ops snd_pmic_ops_nc;
-extern struct snd_pmic_ops snd_msic_ops;
-
-/* device */
-enum SND_INPUT_DEVICE {
-	AMIC,
-	DMIC,
-	HS_MIC,
-	IN_UNDEFINED
-};
-enum SND_LINE_OUT_DEVICE {
-	HEADSET,
-	IHF,
-	VIBRA1,
-	VIBRA2,
-	NONE,
-};
-
-enum SND_OUTPUT_DEVICE {
-	STEREO_HEADPHONE,
-	MONO_EARPIECE,
-
-	INTERNAL_SPKR,
-	RECEIVER,
-	OUT_UNDEFINED
-};
-
-enum pmic_controls {
-	PMIC_SND_HP_MIC_MUTE =			0x0001,
-	PMIC_SND_AMIC_MUTE =			0x0002,
-	PMIC_SND_DMIC_MUTE =			0x0003,
-	PMIC_SND_CAPTURE_VOL =			0x0004,
-/* Output controls */
-	PMIC_SND_LEFT_PB_VOL =			0x0010,
-	PMIC_SND_RIGHT_PB_VOL =			0x0011,
-	PMIC_SND_LEFT_HP_MUTE =			0x0012,
-	PMIC_SND_RIGHT_HP_MUTE =		0x0013,
-	PMIC_SND_LEFT_SPEAKER_MUTE =		0x0014,
-	PMIC_SND_RIGHT_SPEAKER_MUTE =		0x0015,
-	PMIC_SND_RECEIVER_VOL =			0x0016,
-	PMIC_SND_RECEIVER_MUTE =		0x0017,
-	PMIC_SND_LEFT_MASTER_VOL =		0x0018,
-	PMIC_SND_RIGHT_MASTER_VOL =		0x0019,
-/* Other controls */
-	PMIC_SND_MUTE_ALL =			0x0020,
-	PMIC_MAX_CONTROLS =			0x0020,
-};
-
-#endif /* __INTELMID_SND_CTRL_H__ */
-
-
diff --git a/drivers/staging/intel_sst/intelmid_v0_control.c b/drivers/staging/intel_sst/intelmid_v0_control.c
deleted file mode 100644
index b8dfdb9bc1aa..000000000000
--- a/drivers/staging/intel_sst/intelmid_v0_control.c
+++ /dev/null
@@ -1,866 +0,0 @@
-/*
- *  intel_sst_v0_control.c - Intel SST Driver for audio engine
- *
- *  Copyright (C) 2008-10 Intel Corporation
- *  Authors:	Vinod Koul <vinod.koul@intel.com>
- *		Harsha Priya <priya.harsha@intel.com>
- *		Dharageswari R <dharageswari.r@intel.com>
- *		KP Jeeja <jeeja.kp@intel.com>
- *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; version 2 of the License.
- *
- *  This program is distributed in the hope that it will be useful, but
- *  WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This file contains the control operations of vendor 1
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/pci.h>
-#include <linux/file.h>
-#include <sound/control.h>
-#include "intel_sst.h"
-#include "intelmid_snd_control.h"
-#include "intelmid.h"
-
-enum _reg_v1 {
-	VOICEPORT1 = 0x180,
-	VOICEPORT2 = 0x181,
-	AUDIOPORT1 = 0x182,
-	AUDIOPORT2 = 0x183,
-	MISCVOICECTRL = 0x184,
-	MISCAUDCTRL = 0x185,
-	DMICCTRL1 = 0x186,
-	AUDIOBIAS = 0x187,
-	MICCTRL = 0x188,
-	MICLICTRL1 = 0x189,
-	MICLICTRL2 = 0x18A,
-	MICLICTRL3 = 0x18B,
-	VOICEDACCTRL1 = 0x18C,
-	STEREOADCCTRL = 0x18D,
-	AUD15 = 0x18E,
-	AUD16 = 0x18F,
-	AUD17 = 0x190,
-	AUD18 = 0x191,
-	RMIXOUTSEL = 0x192,
-	ANALOGLBR = 0x193,
-	ANALOGLBL = 0x194,
-	POWERCTRL1 = 0x195,
-	POWERCTRL2 = 0x196,
-	HEADSETDETECTINT = 0x197,
-	HEADSETDETECTINTMASK = 0x198,
-	TRIMENABLE = 0x199,
-};
-
-int rev_id = 0x20;
-static bool jack_det_enabled;
-
-/****
- * fs_init_card - initialize the sound card
- *
- * This initializes the audio paths to know values in case of this sound card
- */
-static int fs_init_card(void)
-{
-	struct sc_reg_access sc_access[] = {
-		{0x180, 0x00, 0x0},
-		{0x181, 0x00, 0x0},
-		{0x182, 0xF8, 0x0},
-		{0x183, 0x08, 0x0},
-		{0x184, 0x00, 0x0},
-		{0x185, 0x40, 0x0},
-		{0x186, 0x06, 0x0},
-		{0x187, 0x80, 0x0},
-		{0x188, 0x40, 0x0},
-		{0x189, 0x39, 0x0},
-		{0x18a, 0x39, 0x0},
-		{0x18b, 0x1F, 0x0},
-		{0x18c, 0x00, 0x0},
-		{0x18d, 0x00, 0x0},
-		{0x18e, 0x39, 0x0},
-		{0x18f, 0x39, 0x0},
-		{0x190, 0x39, 0x0},
-		{0x191, 0x11, 0x0},
-		{0x192, 0x0E, 0x0},
-		{0x193, 0x00, 0x0},
-		{0x194, 0x00, 0x0},
-		{0x195, 0x00, 0x0},
-		{0x196, 0x7C, 0x0},
-		{0x197, 0x00, 0x0},
-		{0x198, 0x0B, 0x0},
-		{0x199, 0x00, 0x0},
-		{0x037, 0x3F, 0x0},
-	};
-
-	snd_pmic_ops_fs.card_status = SND_CARD_INIT_DONE;
-	snd_pmic_ops_fs.master_mute = UNMUTE;
-	snd_pmic_ops_fs.mute_status = UNMUTE;
-	snd_pmic_ops_fs.num_channel = 2;
-	return sst_sc_reg_access(sc_access, PMIC_WRITE, 27);
-}
-
-static int fs_enable_audiodac(int value)
-{
-	struct sc_reg_access sc_access[3];
-	sc_access[0].reg_addr = AUD16;
-	sc_access[1].reg_addr = AUD17;
-	sc_access[2].reg_addr = AUD15;
-	sc_access[0].mask = sc_access[1].mask = sc_access[2].mask = MASK7;
-
-	if (snd_pmic_ops_fs.mute_status == MUTE)
-		return 0;
-	if (value == MUTE) {
-			sc_access[0].value = sc_access[1].value =
-				sc_access[2].value = 0x80;
-
-		} else {
-			sc_access[0].value = sc_access[1].value =
-			sc_access[2].value =  0x0;
-		}
-	if (snd_pmic_ops_fs.num_channel == 1)
-		sc_access[1].value = sc_access[2].value = 0x80;
-	return sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 3);
-
-}
-
-static int fs_power_up_pb(unsigned int port)
-{
-	struct sc_reg_access sc_access[] = {
-		{AUDIOBIAS, 0x00, MASK7},
-		{POWERCTRL1, 0xC6, 0xC6},
-		{POWERCTRL2, 0x30, 0x30},
-
-	};
-	int retval = 0;
-
-	if (snd_pmic_ops_fs.card_status == SND_CARD_UN_INIT)
-		retval = fs_init_card();
-	if (retval)
-		return retval;
-	retval = fs_enable_audiodac(MUTE);
-	retval = sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 3);
-
-	if (retval)
-		return retval;
-
-	pr_debug("in fs power up pb\n");
-	return fs_enable_audiodac(UNMUTE);
-}
-
-static int fs_power_down_pb(unsigned int device)
-{
-	struct sc_reg_access sc_access[] = {
-		{POWERCTRL1, 0x00, 0xC6},
-		{POWERCTRL2, 0x00, 0x30},
-	};
-	int retval = 0;
-
-	if (snd_pmic_ops_fs.card_status == SND_CARD_UN_INIT)
-		retval = fs_init_card();
-	if (retval)
-		return retval;
-	retval = fs_enable_audiodac(MUTE);
-	retval = sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 2);
-
-	if (retval)
-		return retval;
-
-	pr_debug("in fsl power down pb\n");
-	return fs_enable_audiodac(UNMUTE);
-}
-
-static int fs_power_up_cp(unsigned int port)
-{
-	struct sc_reg_access sc_access[] = {
-		{POWERCTRL2, 0x32, 0x32}, /*NOTE power up A ADC only as*/
-		{AUDIOBIAS, 0x00, MASK7},
-					/*as turning on V ADC causes noise*/
-	};
-	int retval = 0;
-
-	if (snd_pmic_ops_fs.card_status == SND_CARD_UN_INIT)
-		retval = fs_init_card();
-	if (retval)
-		return retval;
-	return sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 2);
-}
-
-static int fs_power_down_cp(unsigned int device)
-{
-	struct sc_reg_access sc_access[] = {
-		{POWERCTRL2, 0x00, 0x03},
-	};
-	int retval = 0;
-
-	if (snd_pmic_ops_fs.card_status == SND_CARD_UN_INIT)
-		retval = fs_init_card();
-	if (retval)
-		return retval;
-	return sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 1);
-}
-
-static int fs_power_down(void)
-{
-	int retval = 0;
-	struct sc_reg_access sc_access[] = {
-		{AUDIOBIAS, MASK7, MASK7},
-	};
-
-	if (snd_pmic_ops_fs.card_status == SND_CARD_UN_INIT)
-		retval = fs_init_card();
-	if (retval)
-		return retval;
-	return sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 1);
-}
-
-static int fs_set_pcm_voice_params(void)
-{
-	struct sc_reg_access sc_access[] = {
-		{0x180, 0xA0, 0},
-		{0x181, 0x04, 0},
-		{0x182, 0x0, 0},
-		{0x183, 0x0, 0},
-		{0x184, 0x18, 0},
-		{0x185, 0x40, 0},
-		{0x186, 0x06, 0},
-		{0x187, 0x0, 0},
-		{0x188, 0x10, 0},
-		{0x189, 0x39, 0},
-		{0x18a, 0x39, 0},
-		{0x18b, 0x02, 0},
-		{0x18c, 0x0, 0},
-		{0x18d, 0x0, 0},
-		{0x18e, 0x39, 0},
-		{0x18f, 0x0, 0},
-		{0x190, 0x0, 0},
-		{0x191, 0x20, 0},
-		{0x192, 0x20, 0},
-		{0x193, 0x0, 0},
-		{0x194, 0x0, 0},
-		{0x195, 0x06, 0},
-		{0x196, 0x25, 0},
-		{0x197, 0x0, 0},
-		{0x198, 0xF, 0},
-		{0x199, 0x0, 0},
-	};
-	int retval = 0;
-
-	if (snd_pmic_ops_fs.card_status == SND_CARD_UN_INIT)
-		retval = fs_init_card();
-	if (retval)
-		return retval;
-	return sst_sc_reg_access(sc_access, PMIC_WRITE, 26);
-}
-
-static int fs_set_audio_port(int status)
-{
-	struct sc_reg_access sc_access[2];
-	int retval = 0;
-
-	if (snd_pmic_ops_fs.card_status == SND_CARD_UN_INIT)
-		retval = fs_init_card();
-	if (retval)
-		return retval;
-	if (status == DEACTIVATE) {
-		/* Deactivate audio port-tristate and power */
-		sc_access[0].value = 0x00;
-		sc_access[0].mask = MASK6|MASK7;
-		sc_access[0].reg_addr = AUDIOPORT1;
-		sc_access[1].value = 0x00;
-		sc_access[1].mask = MASK4|MASK5;
-		sc_access[1].reg_addr = POWERCTRL2;
-		return sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 2);
-	} else if (status == ACTIVATE) {
-		/* activate audio port */
-		sc_access[0].value = 0xC0;
-		sc_access[0].mask = MASK6|MASK7;
-		sc_access[0].reg_addr = AUDIOPORT1;
-		sc_access[1].value = 0x30;
-		sc_access[1].mask = MASK4|MASK5;
-		sc_access[1].reg_addr = POWERCTRL2;
-		return sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 2);
-	} else
-		return -EINVAL;
-}
-
-static int fs_set_voice_port(int status)
-{
-	struct sc_reg_access sc_access[2];
-	int retval = 0;
-
-	if (snd_pmic_ops_fs.card_status == SND_CARD_UN_INIT)
-		retval = fs_init_card();
-	if (retval)
-		return retval;
-	if (status == DEACTIVATE) {
-		/* Deactivate audio port-tristate and power */
-		sc_access[0].value = 0x00;
-		sc_access[0].mask = MASK6|MASK7;
-		sc_access[0].reg_addr = VOICEPORT1;
-		sc_access[1].value = 0x00;
-		sc_access[1].mask = MASK0|MASK1;
-		sc_access[1].reg_addr = POWERCTRL2;
-		return sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 2);
-	} else if (status == ACTIVATE) {
-		/* activate audio port */
-		sc_access[0].value = 0xC0;
-		sc_access[0].mask = MASK6|MASK7;
-		sc_access[0].reg_addr = VOICEPORT1;
-		sc_access[1].value = 0x03;
-		sc_access[1].mask = MASK0|MASK1;
-		sc_access[1].reg_addr = POWERCTRL2;
-		return sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 2);
-	} else
-		return -EINVAL;
-}
-
-static int fs_set_pcm_audio_params(int sfreq, int word_size, int num_channel)
-{
-	u8 config1 = 0;
-	struct sc_reg_access sc_access[4];
-	int retval = 0, num_value = 0;
-
-	if (snd_pmic_ops_fs.card_status == SND_CARD_UN_INIT)
-		retval = fs_init_card();
-	if (retval)
-		return retval;
-	switch (sfreq) {
-	case 8000:
-		config1 = 0x00;
-		break;
-	case 11025:
-		config1 = 0x01;
-		break;
-	case 12000:
-		config1 = 0x02;
-		break;
-	case 16000:
-		config1 = 0x03;
-		break;
-	case 22050:
-		config1 = 0x04;
-		break;
-	case 24000:
-		config1 = 0x05;
-		break;
-	case 26000:
-		config1 = 0x06;
-		break;
-	case 32000:
-		config1 = 0x07;
-		break;
-	case 44100:
-		config1 = 0x08;
-		break;
-	case 48000:
-		config1 = 0x09;
-		break;
-	}
-	snd_pmic_ops_fs.num_channel = num_channel;
-	if (snd_pmic_ops_fs.num_channel == 1)	{
-		sc_access[0].reg_addr = AUD17;
-		sc_access[1].reg_addr = AUD15;
-		sc_access[0].mask = sc_access[1].mask = MASK7;
-		sc_access[0].value = sc_access[1].value = 0x80;
-		sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 2);
-
-	} else {
-		sc_access[0].reg_addr = AUD17;
-		sc_access[1].reg_addr = AUD15;
-		sc_access[0].mask = sc_access[1].mask = MASK7;
-		sc_access[0].value = sc_access[1].value = 0x00;
-		sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 2);
-
-	}
-	pr_debug("sfreq:%d,Register value = %x\n", sfreq, config1);
-
-	if (word_size == 24) {
-		sc_access[0].reg_addr  = AUDIOPORT1;
-		sc_access[0].mask = MASK0|MASK1|MASK2|MASK3;
-		sc_access[0].value = 0xFB;
-
-
-		sc_access[1].reg_addr  = AUDIOPORT2;
-		sc_access[1].value = config1 | 0x10;
-		sc_access[1].mask = MASK0 | MASK1 | MASK2 | MASK3
-					| MASK4 | MASK5 | MASK6;
-
-		sc_access[2].reg_addr  = MISCAUDCTRL;
-		sc_access[2].value = 0x02;
-		sc_access[2].mask = 0x02;
-
-		num_value = 3 ;
-
-	} else {
-
-		sc_access[0].reg_addr  = AUDIOPORT2;
-		sc_access[0].value = config1;
-		sc_access[0].mask = MASK0|MASK1|MASK2|MASK3;
-
-		sc_access[1].reg_addr  = MISCAUDCTRL;
-		sc_access[1].value = 0x00;
-		sc_access[1].mask = 0x02;
-		num_value = 2;
-	}
-	return sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, num_value);
-
-}
-
-static int fs_set_selected_input_dev(u8 value)
-{
-	struct sc_reg_access sc_access_dmic[] = {
-		{MICCTRL, 0x81, 0xf7},
-		{MICLICTRL3, 0x00, 0xE0},
-	};
-	struct sc_reg_access sc_access_mic[] = {
-		{MICCTRL, 0x40, MASK2|MASK4|MASK5|MASK6|MASK7},
-		{MICLICTRL3, 0x00, 0xE0},
-	};
-	struct sc_reg_access sc_access_hsmic[] = {
-		{MICCTRL, 0x10, MASK2|MASK4|MASK5|MASK6|MASK7},
-		{MICLICTRL3, 0x00, 0xE0},
-	};
-
-	int retval = 0;
-
-	if (snd_pmic_ops_fs.card_status == SND_CARD_UN_INIT)
-		retval = fs_init_card();
-	if (retval)
-		return retval;
-
-	switch (value) {
-	case AMIC:
-		pr_debug("Selecting amic not supported in mono cfg\n");
-		return sst_sc_reg_access(sc_access_mic, PMIC_READ_MODIFY, 2);
-		break;
-
-	case HS_MIC:
-		pr_debug("Selecting hsmic\n");
-		return sst_sc_reg_access(sc_access_hsmic,
-				PMIC_READ_MODIFY, 2);
-		break;
-
-	case DMIC:
-		pr_debug("Selecting dmic\n");
-		return sst_sc_reg_access(sc_access_dmic, PMIC_READ_MODIFY, 2);
-		break;
-
-	default:
-		return -EINVAL;
-
-	}
-}
-
-static int fs_set_selected_output_dev(u8 value)
-{
-	struct sc_reg_access sc_access_hp[] = {
-		{0x191, 0x11, 0x0},
-		{0x192, 0x0E, 0x0},
-	};
-	struct sc_reg_access sc_access_is[] = {
-		{0x191, 0x17, 0xFF},
-		{0x192, 0x08, 0xFF},
-	};
-	int retval = 0;
-
-	if (snd_pmic_ops_fs.card_status == SND_CARD_UN_INIT)
-		retval = fs_init_card();
-	if (retval)
-		return retval;
-
-	switch (value) {
-	case STEREO_HEADPHONE:
-		pr_debug("SST DBG:Selecting headphone\n");
-		return sst_sc_reg_access(sc_access_hp, PMIC_WRITE, 2);
-		break;
-	case MONO_EARPIECE:
-	case INTERNAL_SPKR:
-		pr_debug("SST DBG:Selecting internal spkr\n");
-		return sst_sc_reg_access(sc_access_is, PMIC_READ_MODIFY, 2);
-		break;
-
-	default:
-		return -EINVAL;
-
-	}
-}
-
-static int fs_set_mute(int dev_id, u8 value)
-{
-	struct sc_reg_access sc_access[6] = {{0,},};
-	int reg_num = 0;
-	int retval = 0;
-
-	if (snd_pmic_ops_fs.card_status == SND_CARD_UN_INIT)
-		retval = fs_init_card();
-	if (retval)
-		return retval;
-
-
-	pr_debug("dev_id:0x%x value:0x%x\n", dev_id, value);
-	switch (dev_id) {
-	case PMIC_SND_DMIC_MUTE:
-		sc_access[0].reg_addr = MICCTRL;
-		sc_access[1].reg_addr = MICLICTRL1;
-		sc_access[2].reg_addr = MICLICTRL2;
-		sc_access[0].mask = MASK5;
-		sc_access[1].mask = sc_access[2].mask = MASK6;
-		if (value == MUTE) {
-			sc_access[0].value = 0x20;
-			sc_access[2].value = sc_access[1].value = 0x40;
-		} else
-			sc_access[0].value = sc_access[1].value
-			= sc_access[2].value = 0x0;
-		reg_num = 3;
-		break;
-	case PMIC_SND_HP_MIC_MUTE:
-	case PMIC_SND_AMIC_MUTE:
-		sc_access[0].reg_addr = MICLICTRL1;
-		sc_access[1].reg_addr = MICLICTRL2;
-		sc_access[0].mask = sc_access[1].mask = MASK6;
-		if (value == MUTE)
-			sc_access[0].value = sc_access[1].value = 0x40;
-		else
-			sc_access[0].value = sc_access[1].value = 0x0;
-		reg_num = 2;
-		break;
-	case PMIC_SND_LEFT_SPEAKER_MUTE:
-	case PMIC_SND_LEFT_HP_MUTE:
-		sc_access[0].reg_addr = AUD16;
-		sc_access[1].reg_addr = AUD15;
-
-		sc_access[0].mask = sc_access[1].mask = MASK7;
-		if (value == MUTE)
-			sc_access[0].value = sc_access[1].value = 0x80;
-		else
-			sc_access[0].value = sc_access[1].value = 0x0;
-		reg_num = 2;
-		snd_pmic_ops_fs.mute_status = value;
-		break;
-	case PMIC_SND_RIGHT_HP_MUTE:
-	case PMIC_SND_RIGHT_SPEAKER_MUTE:
-		sc_access[0].reg_addr = AUD17;
-		sc_access[1].reg_addr = AUD15;
-		sc_access[0].mask = sc_access[1].mask = MASK7;
-		if (value == MUTE)
-			sc_access[0].value = sc_access[1].value = 0x80;
-		else
-			sc_access[0].value = sc_access[1].value = 0x0;
-		snd_pmic_ops_fs.mute_status = value;
-		if (snd_pmic_ops_fs.num_channel == 1)
-			sc_access[0].value = sc_access[1].value = 0x80;
-		reg_num = 2;
-		break;
-	case PMIC_SND_MUTE_ALL:
-		sc_access[0].reg_addr = AUD16;
-		sc_access[1].reg_addr = AUD17;
-		sc_access[2].reg_addr = AUD15;
-		sc_access[3].reg_addr = MICCTRL;
-		sc_access[4].reg_addr = MICLICTRL1;
-		sc_access[5].reg_addr = MICLICTRL2;
-		sc_access[0].mask = sc_access[1].mask =
-				sc_access[2].mask = MASK7;
-		sc_access[3].mask = MASK5;
-		sc_access[4].mask = sc_access[5].mask = MASK6;
-
-		if (value == MUTE) {
-			sc_access[0].value =
-			sc_access[1].value = sc_access[2].value = 0x80;
-			sc_access[3].value = 0x20;
-			sc_access[4].value = sc_access[5].value = 0x40;
-
-		} else {
-			sc_access[0].value = sc_access[1].value =
-			sc_access[2].value = sc_access[3].value =
-			sc_access[4].value = sc_access[5].value = 0x0;
-		}
-		if (snd_pmic_ops_fs.num_channel == 1)
-			sc_access[1].value = sc_access[2].value = 0x80;
-		reg_num = 6;
-		snd_pmic_ops_fs.mute_status = value;
-		snd_pmic_ops_fs.master_mute = value;
-		break;
-
-	}
-	return sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, reg_num);
-}
-
-static int fs_set_vol(int dev_id, int value)
-{
-	struct sc_reg_access sc_acces, sc_access[4] = {{0},};
-	int reg_num = 0;
-	int retval = 0;
-
-	if (snd_pmic_ops_fs.card_status == SND_CARD_UN_INIT)
-		retval = fs_init_card();
-	if (retval)
-		return retval;
-
-	switch (dev_id) {
-	case PMIC_SND_LEFT_PB_VOL:
-		pr_debug("PMIC_SND_LEFT_PB_VOL:%d\n", value);
-		sc_access[0].value = sc_access[1].value = value;
-		sc_access[0].reg_addr = AUD16;
-		sc_access[1].reg_addr = AUD15;
-		sc_access[0].mask = sc_access[1].mask =
-			(MASK0|MASK1|MASK2|MASK3|MASK4|MASK5);
-		reg_num = 2;
-		break;
-
-	case PMIC_SND_RIGHT_PB_VOL:
-		pr_debug("PMIC_SND_RIGHT_PB_VOL:%d\n", value);
-		sc_access[0].value = sc_access[1].value = value;
-		sc_access[0].reg_addr = AUD17;
-		sc_access[1].reg_addr = AUD15;
-		sc_access[0].mask = sc_access[1].mask =
-			(MASK0|MASK1|MASK2|MASK3|MASK4|MASK5);
-		if (snd_pmic_ops_fs.num_channel == 1) {
-			sc_access[0].value = sc_access[1].value = 0x80;
-			sc_access[0].mask = sc_access[1].mask = MASK7;
-		}
-		reg_num = 2;
-		break;
-	case PMIC_SND_CAPTURE_VOL:
-		pr_debug("PMIC_SND_CAPTURE_VOL:%d\n", value);
-		sc_access[0].reg_addr = MICLICTRL1;
-		sc_access[1].reg_addr = MICLICTRL2;
-		sc_access[2].reg_addr = DMICCTRL1;
-		sc_access[2].value = value;
-		sc_access[0].value = sc_access[1].value = value;
-		sc_acces.reg_addr = MICLICTRL3;
-		sc_acces.value = value;
-		sc_acces.mask = (MASK0|MASK1|MASK2|MASK3|MASK5|MASK6|MASK7);
-		retval = sst_sc_reg_access(&sc_acces, PMIC_READ_MODIFY, 1);
-		sc_access[0].mask = sc_access[1].mask =
-		sc_access[2].mask = (MASK0|MASK1|MASK2|MASK3|MASK4|MASK5);
-		reg_num = 3;
-		break;
-
-	default:
-		return -EINVAL;
-	}
-
-	return sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, reg_num);
-}
-
-static int fs_get_mute(int dev_id, u8 *value)
-{
-	struct sc_reg_access sc_access[6] = {{0,},};
-
-	int retval = 0, temp_value = 0, mask = 0;
-
-	if (snd_pmic_ops_fs.card_status == SND_CARD_UN_INIT)
-		retval = fs_init_card();
-	if (retval)
-		return retval;
-
-	switch (dev_id) {
-
-	case PMIC_SND_AMIC_MUTE:
-	case PMIC_SND_HP_MIC_MUTE:
-		sc_access[0].reg_addr = MICLICTRL1;
-		mask = MASK6;
-		retval = sst_sc_reg_access(sc_access, PMIC_READ, 1);
-		if (sc_access[0].value & mask)
-			*value = MUTE;
-		else
-			*value = UNMUTE;
-		break;
-	case PMIC_SND_DMIC_MUTE:
-		sc_access[0].reg_addr = MICCTRL;
-		mask = MASK5;
-		retval = sst_sc_reg_access(sc_access, PMIC_READ, 1);
-		temp_value = (sc_access[0].value & mask);
-		if (temp_value == 0)
-			*value = UNMUTE;
-		else
-			*value = MUTE;
-		break;
-
-	case PMIC_SND_LEFT_HP_MUTE:
-	case PMIC_SND_LEFT_SPEAKER_MUTE:
-		sc_access[0].reg_addr = AUD16;
-		mask = MASK7;
-		retval = sst_sc_reg_access(sc_access, PMIC_READ, 1);
-		temp_value = sc_access[0].value & mask;
-		if (temp_value == 0)
-			*value = UNMUTE;
-		else
-			*value = MUTE;
-		break;
-	case PMIC_SND_RIGHT_HP_MUTE:
-	case PMIC_SND_RIGHT_SPEAKER_MUTE:
-		sc_access[0].reg_addr = AUD17;
-		mask = MASK7;
-		retval = sst_sc_reg_access(sc_access, PMIC_READ, 1);
-		temp_value = sc_access[0].value & mask;
-		if (temp_value == 0)
-			*value = UNMUTE;
-		else
-			*value = MUTE;
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	return retval;
-}
-
-static int fs_get_vol(int dev_id, int *value)
-{
-	struct sc_reg_access sc_access = {0,};
-	int retval = 0, mask = 0;
-
-	if (snd_pmic_ops_fs.card_status == SND_CARD_UN_INIT)
-		retval = fs_init_card();
-	if (retval)
-		return retval;
-
-	switch (dev_id) {
-	case PMIC_SND_CAPTURE_VOL:
-		pr_debug("PMIC_SND_CAPTURE_VOL\n");
-		sc_access.reg_addr = MICLICTRL1;
-		mask = (MASK5|MASK4|MASK3|MASK2|MASK1|MASK0);
-		break;
-	case PMIC_SND_LEFT_PB_VOL:
-		pr_debug("PMIC_SND_LEFT_PB_VOL\n");
-		sc_access.reg_addr = AUD16;
-		mask = (MASK5|MASK4|MASK3|MASK2|MASK1|MASK0);
-		break;
-	case PMIC_SND_RIGHT_PB_VOL:
-		pr_debug("PMIC_SND_RT_PB_VOL\n");
-		sc_access.reg_addr = AUD17;
-		mask = (MASK5|MASK4|MASK3|MASK2|MASK1|MASK0);
-		break;
-	default:
-		return -EINVAL;
-	}
-
-	retval = sst_sc_reg_access(&sc_access, PMIC_READ, 1);
-	pr_debug("value read = 0x%x\n", sc_access.value);
-	*value = (int) (sc_access.value & mask);
-	pr_debug("value returned = 0x%x\n", *value);
-	return retval;
-}
-
-static void fs_pmic_irq_enable(void *data)
-{
-	struct snd_intelmad *intelmaddata = data;
-	struct sc_reg_access sc_access[] = {
-				{0x187, 0x00, MASK7},
-				{0x188, 0x10, MASK4},
-				{0x18b, 0x10, MASK4},
-	};
-
-	struct sc_reg_access sc_access_write[] = {
-				{0x198, 0x00, 0x0},
-	};
-	pr_debug("Audio interrupt enable\n");
-	sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 3);
-	sst_sc_reg_access(sc_access_write, PMIC_WRITE, 1);
-
-	intelmaddata->jack[0].jack_status = 0;
-	/*intelmaddata->jack[1].jack_status = 0;*/
-
-	jack_det_enabled = true;
-	return;
-}
-
-static void fs_pmic_irq_cb(void *cb_data, u8 value)
-{
-	struct mad_jack *mjack = NULL;
-	struct snd_intelmad *intelmaddata = cb_data;
-	unsigned int present = 0, jack_event_flag = 0, buttonpressflag = 0;
-
-	mjack = &intelmaddata->jack[0];
-
-	if (value & 0x4) {
-		if (!jack_det_enabled)
-			fs_pmic_irq_enable(intelmaddata);
-
-		/* send headphone detect */
-		pr_debug(":MAD headphone %d\n", value & 0x4);
-		present = !(mjack->jack_status);
-		mjack->jack_status = present;
-		jack_event_flag = 1;
-		mjack->jack.type = SND_JACK_HEADPHONE;
-	}
-
-	if (value & 0x2) {
-		/* send short push */
-		pr_debug(":MAD short push %d\n", value & 0x2);
-		present = 1;
-		jack_event_flag = 1;
-		buttonpressflag = 1;
-		mjack->jack.type = MID_JACK_HS_SHORT_PRESS;
-	}
-
-	if (value & 0x1) {
-		/* send long push */
-		pr_debug(":MAD long push %d\n", value & 0x1);
-		present = 1;
-		jack_event_flag = 1;
-		buttonpressflag = 1;
-		mjack->jack.type = MID_JACK_HS_LONG_PRESS;
-	}
-
-	if (value & 0x8) {
-		if (!jack_det_enabled)
-			fs_pmic_irq_enable(intelmaddata);
-		/* send headset detect */
-		pr_debug(":MAD headset = %d\n", value & 0x8);
-		present = !(mjack->jack_status);
-		mjack->jack_status = present;
-		jack_event_flag = 1;
-		mjack->jack.type = SND_JACK_HEADSET;
-	}
-
-
-	if (jack_event_flag)
-		sst_mad_send_jack_report(&mjack->jack,
-						buttonpressflag, present);
-
-	return;
-}
-static int fs_jack_enable(void)
-{
-	return 0;
-}
-
-struct snd_pmic_ops snd_pmic_ops_fs = {
-	.set_input_dev = fs_set_selected_input_dev,
-	.set_output_dev = fs_set_selected_output_dev,
-	.set_mute = fs_set_mute,
-	.get_mute = fs_get_mute,
-	.set_vol = fs_set_vol,
-	.get_vol = fs_get_vol,
-	.init_card = fs_init_card,
-	.set_pcm_audio_params = fs_set_pcm_audio_params,
-	.set_pcm_voice_params = fs_set_pcm_voice_params,
-	.set_voice_port = fs_set_voice_port,
-	.set_audio_port = fs_set_audio_port,
-	.power_up_pmic_pb =	fs_power_up_pb,
-	.power_up_pmic_cp =	fs_power_up_cp,
-	.power_down_pmic_pb =	fs_power_down_pb,
-	.power_down_pmic_cp =	fs_power_down_cp,
-	.power_down_pmic	=	fs_power_down,
-	.pmic_irq_cb	=	fs_pmic_irq_cb,
-	/*
-	 * Jack detection enabling
-	 * need be delayed till first IRQ happen.
-	 */
-	.pmic_irq_enable =	NULL,
-	.pmic_jack_enable = fs_jack_enable,
-};
diff --git a/drivers/staging/intel_sst/intelmid_v1_control.c b/drivers/staging/intel_sst/intelmid_v1_control.c
deleted file mode 100644
index 9d00728d8deb..000000000000
--- a/drivers/staging/intel_sst/intelmid_v1_control.c
+++ /dev/null
@@ -1,978 +0,0 @@
-/*  intel_sst_v1_control.c - Intel SST Driver for audio engine
- *
- *  Copyright (C) 2008-10 Intel Corp
- *  Authors:	Vinod Koul <vinod.koul@intel.com>
- *	Harsha Priya <priya.harsha@intel.com>
- *	Dharageswari R <dharageswari.r@intel.com>
- *	KP Jeeja <jeeja.kp@intel.com>
- *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; version 2 of the License.
- *
- *  This program is distributed in the hope that it will be useful, but
- *  WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This file contains the control operations of vendor 2
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/pci.h>
-#include <linux/delay.h>
-#include <linux/file.h>
-#include <asm/mrst.h>
-#include <sound/pcm.h>
-#include <sound/pcm_params.h>
-#include <sound/control.h>
-#include <sound/initval.h>
-#include "intel_sst.h"
-#include "intel_sst_ioctl.h"
-#include "intelmid.h"
-#include "intelmid_snd_control.h"
-
-#include <linux/gpio.h>
-#define KOSKI_VOICE_CODEC_ENABLE 46
-
-enum _reg_v2 {
-
-	MASTER_CLOCK_PRESCALAR  = 0x205,
-	SET_MASTER_AND_LR_CLK1	= 0x20b,
-	SET_MASTER_AND_LR_CLK2	= 0x20c,
-	MASTER_MODE_AND_DATA_DELAY = 0x20d,
-	DIGITAL_INTERFACE_TO_DAI2 = 0x20e,
-	CLK_AND_FS1 = 0x208,
-	CLK_AND_FS2 = 0x209,
-	DAI2_TO_DAC_HP = 0x210,
-	HP_OP_SINGLE_ENDED = 0x224,
-	ENABLE_OPDEV_CTRL = 0x226,
-	ENABLE_DEV_AND_USE_XTAL = 0x227,
-
-	/* Max audio subsystem (PQ49) MAX 8921 */
-	AS_IP_MODE_CTL = 0xF9,
-	AS_LEFT_SPKR_VOL_CTL = 0xFA, /* Mono Earpiece volume control */
-	AS_RIGHT_SPKR_VOL_CTL = 0xFB,
-	AS_LEFT_HP_VOL_CTL = 0xFC,
-	AS_RIGHT_HP_VOL_CTL = 0xFD,
-	AS_OP_MIX_CTL = 0xFE,
-	AS_CONFIG = 0xFF,
-
-	/* Headphone volume control & mute registers */
-	VOL_CTRL_LT = 0x21c,
-	VOL_CTRL_RT = 0x21d,
-
-};
-/**
- * mx_init_card - initialize the sound card
- *
- * This initializes the audio paths to know values in case of this sound card
- */
-static int mx_init_card(void)
-{
-	struct sc_reg_access sc_access[] = {
-		{0x200, 0x80, 0x00},
-		{0x201, 0xC0, 0x00},
-		{0x202, 0x00, 0x00},
-		{0x203, 0x00, 0x00},
-		{0x204, 0x02, 0x00},
-		{0x205, 0x10, 0x00},
-		{0x206, 0x60, 0x00},
-		{0x207, 0x00, 0x00},
-		{0x208, 0x90, 0x00},
-		{0x209, 0x51, 0x00},
-		{0x20a, 0x00, 0x00},
-		{0x20b, 0x10, 0x00},
-		{0x20c, 0x00, 0x00},
-		{0x20d, 0x00, 0x00},
-		{0x20e, 0x21, 0x00},
-		{0x20f, 0x00, 0x00},
-		{0x210, 0x84, 0x00},
-		{0x211, 0xB3, 0x00},
-		{0x212, 0x00, 0x00},
-		{0x213, 0x00, 0x00},
-		{0x214, 0x41, 0x00},
-		{0x215, 0x00, 0x00},
-		{0x216, 0x00, 0x00},
-		{0x217, 0x00, 0x00},
-		{0x218, 0x03, 0x00},
-		{0x219, 0x03, 0x00},
-		{0x21a, 0x00, 0x00},
-		{0x21b, 0x00, 0x00},
-		{0x21c, 0x00, 0x00},
-		{0x21d, 0x00, 0x00},
-		{0x21e, 0x00, 0x00},
-		{0x21f, 0x00, 0x00},
-		{0x220, 0x20, 0x00},
-		{0x221, 0x20, 0x00},
-		{0x222, 0x51, 0x00},
-		{0x223, 0x20, 0x00},
-		{0x224, 0x04, 0x00},
-		{0x225, 0x80, 0x00},
-		{0x226, 0x0F, 0x00},
-		{0x227, 0x08, 0x00},
-		{0xf9,  0x40, 0x00},
-		{0xfa,  0x1f, 0x00},
-		{0xfb,  0x1f, 0x00},
-		{0xfc,  0x1f, 0x00},
-		{0xfd,  0x1f, 0x00},
-		{0xfe,  0x00, 0x00},
-		{0xff,  0x0c, 0x00},
-	};
-	snd_pmic_ops_mx.card_status = SND_CARD_INIT_DONE;
-	snd_pmic_ops_mx.num_channel = 2;
-	snd_pmic_ops_mx.master_mute = UNMUTE;
-	snd_pmic_ops_mx.mute_status = UNMUTE;
-	return sst_sc_reg_access(sc_access, PMIC_WRITE, 47);
-}
-
-static int mx_enable_audiodac(int value)
-{
-	struct sc_reg_access sc_access[3];
-	int mute_val = 0;
-	int mute_val1 = 0;
-	int retval = 0;
-
-	sc_access[0].reg_addr = AS_LEFT_HP_VOL_CTL;
-	sc_access[1].reg_addr = AS_RIGHT_HP_VOL_CTL;
-
-	if (value == UNMUTE) {
-		mute_val = 0x1F;
-		mute_val1 = 0x00;
-	} else {
-		mute_val = 0x00;
-		mute_val1 = 0x40;
-	}
-	sc_access[0].mask = sc_access[1].mask = MASK0|MASK1|MASK2|MASK3|MASK4;
-	sc_access[0].value = sc_access[1].value = (u8)mute_val;
-	retval = sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 2);
-	if (retval)
-		return retval;
-	pr_debug("mute status = %d\n", snd_pmic_ops_mx.mute_status);
-	if (snd_pmic_ops_mx.mute_status == MUTE ||
-				snd_pmic_ops_mx.master_mute == MUTE)
-		return retval;
-
-	sc_access[0].reg_addr = VOL_CTRL_LT;
-	sc_access[1].reg_addr = VOL_CTRL_RT;
-	sc_access[0].mask = sc_access[1].mask = MASK6;
-	sc_access[0].value = sc_access[1].value = mute_val1;
-	if (snd_pmic_ops_mx.num_channel == 1)
-		sc_access[1].value = 0x40;
-	return sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 2);
-}
-
-static int mx_power_up_pb(unsigned int port)
-{
-
-	int retval = 0;
-	struct sc_reg_access sc_access[3];
-
-	if (snd_pmic_ops_mx.card_status == SND_CARD_UN_INIT) {
-		retval = mx_init_card();
-		if (retval)
-			return retval;
-	}
-	retval = mx_enable_audiodac(MUTE);
-	if (retval)
-		return retval;
-
-	msleep(10);
-
-	sc_access[0].reg_addr = AS_CONFIG;
-	sc_access[0].mask  = MASK7;
-	sc_access[0].value = 0x80;
-	retval = sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 1);
-	if (retval)
-		return retval;
-
-	sc_access[0].reg_addr = ENABLE_OPDEV_CTRL;
-	sc_access[0].mask  = 0xff;
-	sc_access[0].value = 0x3C;
-	retval = sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 1);
-	if (retval)
-		return retval;
-
-	sc_access[0].reg_addr = ENABLE_DEV_AND_USE_XTAL;
-	sc_access[0].mask  = 0x80;
-	sc_access[0].value = 0x80;
-	retval = sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 1);
-	if (retval)
-		return retval;
-
-	return mx_enable_audiodac(UNMUTE);
-}
-
-static int mx_power_down_pb(unsigned int device)
-{
-	struct sc_reg_access sc_access[3];
-	int retval = 0;
-
-	if (snd_pmic_ops_mx.card_status == SND_CARD_UN_INIT) {
-		retval = mx_init_card();
-		if (retval)
-			return retval;
-	}
-
-	retval = mx_enable_audiodac(MUTE);
-	if (retval)
-		return retval;
-
-	sc_access[0].reg_addr = ENABLE_OPDEV_CTRL;
-	sc_access[0].mask  = MASK3|MASK2;
-	sc_access[0].value = 0x00;
-
-	retval = sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 1);
-	if (retval)
-		return retval;
-
-	return mx_enable_audiodac(UNMUTE);
-}
-
-static int mx_power_up_cp(unsigned int port)
-{
-	int retval = 0;
-	struct sc_reg_access sc_access[] = {
-		{ENABLE_DEV_AND_USE_XTAL, 0x80, MASK7},
-		{ENABLE_OPDEV_CTRL, 0x3, 0x3},
-	};
-
-	if (snd_pmic_ops_mx.card_status == SND_CARD_UN_INIT) {
-		retval = mx_init_card();
-		if (retval)
-			return retval;
-	}
-
-	return sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 2);
-}
-
-static int mx_power_down_cp(unsigned int device)
-{
-	struct sc_reg_access sc_access[] = {
-		{ENABLE_OPDEV_CTRL, 0x00, MASK1|MASK0},
-	};
-	int retval = 0;
-
-	if (snd_pmic_ops_mx.card_status == SND_CARD_UN_INIT) {
-		retval = mx_init_card();
-		if (retval)
-			return retval;
-	}
-
-	return sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 1);
-}
-
-static int mx_power_down(void)
-{
-	int retval = 0;
-	struct sc_reg_access sc_access[3];
-
-	if (snd_pmic_ops_mx.card_status == SND_CARD_UN_INIT) {
-		retval = mx_init_card();
-		if (retval)
-			return retval;
-	}
-
-	retval = mx_enable_audiodac(MUTE);
-	if (retval)
-		return retval;
-
-	sc_access[0].reg_addr = AS_CONFIG;
-	sc_access[0].mask  = MASK7;
-	sc_access[0].value = 0x00;
-	retval = sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 1);
-	if (retval)
-		return retval;
-
-	sc_access[0].reg_addr = ENABLE_DEV_AND_USE_XTAL;
-	sc_access[0].mask  = MASK7;
-	sc_access[0].value = 0x00;
-	retval = sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 1);
-	if (retval)
-		return retval;
-
-	sc_access[0].reg_addr = ENABLE_OPDEV_CTRL;
-	sc_access[0].mask  = MASK3|MASK2;
-	sc_access[0].value = 0x00;
-	retval = sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 1);
-	if (retval)
-		return retval;
-
-	return mx_enable_audiodac(UNMUTE);
-}
-
-static int mx_set_pcm_voice_params(void)
-{
-	int retval = 0;
-	struct sc_reg_access sc_access[] = {
-		{0x200, 0x80, 0x00},
-		{0x201, 0xC0, 0x00},
-		{0x202, 0x00, 0x00},
-		{0x203, 0x00, 0x00},
-		{0x204, 0x0e, 0x00},
-		{0x205, 0x20, 0x00},
-		{0x206, 0x8f, 0x00},
-		{0x207, 0x21, 0x00},
-		{0x208, 0x18, 0x00},
-		{0x209, 0x32, 0x00},
-		{0x20a, 0x00, 0x00},
-		{0x20b, 0x5A, 0x00},
-		{0x20c, 0xBE, 0x00},/* 0x00 -> 0xBE Koski */
-		{0x20d, 0x00, 0x00}, /* DAI2 'off' */
-		{0x20e, 0x40, 0x00},
-		{0x20f, 0x00, 0x00},
-		{0x210, 0x84, 0x00},
-		{0x211, 0x33, 0x00}, /* Voice filter */
-		{0x212, 0x00, 0x00},
-		{0x213, 0x00, 0x00},
-		{0x214, 0x41, 0x00},
-		{0x215, 0x00, 0x00},
-		{0x216, 0x00, 0x00},
-		{0x217, 0x20, 0x00},
-		{0x218, 0x00, 0x00},
-		{0x219, 0x00, 0x00},
-		{0x21a, 0x40, 0x00},
-		{0x21b, 0x40, 0x00},
-		{0x21c, 0x09, 0x00},
-		{0x21d, 0x09, 0x00},
-		{0x21e, 0x00, 0x00},
-		{0x21f, 0x00, 0x00},
-		{0x220, 0x00, 0x00}, /* Microphone configurations */
-		{0x221, 0x00, 0x00}, /* Microphone configurations */
-		{0x222, 0x50, 0x00}, /* Microphone configurations */
-		{0x223, 0x21, 0x00}, /* Microphone configurations */
-		{0x224, 0x00, 0x00},
-		{0x225, 0x80, 0x00},
-		{0xf9, 0x40, 0x00},
-		{0xfa, 0x19, 0x00},
-		{0xfb, 0x19, 0x00},
-		{0xfc, 0x12, 0x00},
-		{0xfd, 0x12, 0x00},
-		{0xfe, 0x00, 0x00},
-	};
-
-	if (snd_pmic_ops_mx.card_status == SND_CARD_UN_INIT) {
-		retval = mx_init_card();
-		if (retval)
-			return retval;
-	}
-	pr_debug("SST DBG:mx_set_pcm_voice_params called\n");
-	return sst_sc_reg_access(sc_access, PMIC_WRITE, 44);
-}
-
-static int mx_set_pcm_audio_params(int sfreq, int word_size, int num_channel)
-{
-	int retval = 0;
-
-	int config1 = 0, config2 = 0, filter = 0xB3;
-	struct sc_reg_access sc_access[5];
-
-	if (snd_pmic_ops_mx.card_status == SND_CARD_UN_INIT) {
-		retval = mx_init_card();
-		if (retval)
-			return retval;
-	}
-
-	switch (sfreq) {
-	case 8000:
-		config1 = 0x10;
-		config2 = 0x00;
-		filter = 0x33;
-		break;
-	case 11025:
-		config1 = 0x16;
-		config2 = 0x0d;
-		break;
-	case 12000:
-		config1 = 0x18;
-		config2 = 0x00;
-		break;
-	case 16000:
-		config1 = 0x20;
-		config2 = 0x00;
-		break;
-	case 22050:
-		config1 = 0x2c;
-		config2 = 0x1a;
-		break;
-	case 24000:
-		config1 = 0x30;
-		config2 = 0x00;
-		break;
-	case 32000:
-		config1 = 0x40;
-		config2 = 0x00;
-		break;
-	case 44100:
-		config1 = 0x58;
-		config2 = 0x33;
-		break;
-	case 48000:
-		config1 = 0x60;
-		config2 = 0x00;
-		break;
-	}
-	snd_pmic_ops_mx.num_channel = num_channel;
-	/*mute the right channel if MONO*/
-	if (snd_pmic_ops_mx.num_channel == 1)	{
-		sc_access[0].reg_addr = VOL_CTRL_RT;
-		sc_access[0].value = 0x40;
-		sc_access[0].mask = MASK6;
-
-		sc_access[1].reg_addr = 0x224;
-		sc_access[1].value = 0x05;
-		sc_access[1].mask = MASK0|MASK1|MASK2;
-
-		retval = sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 2);
-		if (retval)
-			return retval;
-	} else {
-		sc_access[0].reg_addr = VOL_CTRL_RT;
-		sc_access[0].value = 0x00;
-		sc_access[0].mask = MASK6;
-
-		sc_access[1].reg_addr = 0x224;
-		sc_access[1].value = 0x04;
-		sc_access[1].mask = MASK0|MASK1|MASK2;
-
-		retval = sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 2);
-		if (retval)
-			return retval;
-	}
-	sc_access[0].reg_addr =	0x206;
-	sc_access[0].value = config1;
-	sc_access[1].reg_addr = 0x207;
-	sc_access[1].value = config2;
-
-	if (word_size == 16) {
-		sc_access[2].value = 0x51;
-		sc_access[3].value = 0x31;
-	} else if (word_size == 24) {
-		sc_access[2].value = 0x52;
-		sc_access[3].value = 0x92;
-	}
-
-	sc_access[2].reg_addr = 0x209;
-	sc_access[3].reg_addr = 0x20e;
-
-	sc_access[4].reg_addr = 0x211;
-	sc_access[4].value = filter;
-
-	return sst_sc_reg_access(sc_access, PMIC_WRITE, 5);
-}
-
-static int mx_set_selected_output_dev(u8 dev_id)
-{
-	struct sc_reg_access sc_access[2];
-	int num_reg = 0;
-	int retval = 0;
-
-	if (snd_pmic_ops_mx.card_status == SND_CARD_UN_INIT) {
-		retval = mx_init_card();
-		if (retval)
-			return retval;
-	}
-
-	pr_debug("mx_set_selected_output_dev dev_id:0x%x\n", dev_id);
-	snd_pmic_ops_mx.output_dev_id = dev_id;
-	switch (dev_id) {
-	case STEREO_HEADPHONE:
-		sc_access[0].reg_addr = 0xFF;
-		sc_access[0].value = 0x8C;
-		sc_access[0].mask =
-			MASK2|MASK3|MASK5|MASK6|MASK4;
-
-		num_reg = 1;
-		break;
-	case MONO_EARPIECE:
-	case INTERNAL_SPKR:
-		sc_access[0].reg_addr = 0xFF;
-		sc_access[0].value = 0xb0;
-		sc_access[0].mask =  MASK2|MASK3|MASK5|MASK6|MASK4;
-
-		num_reg = 1;
-		break;
-	case RECEIVER:
-		pr_debug("RECEIVER Koski selected\n");
-
-		/* configuration - AS enable, receiver enable */
-		sc_access[0].reg_addr = 0xFF;
-		sc_access[0].value = 0x81;
-		sc_access[0].mask = 0xff;
-
-		num_reg = 1;
-		break;
-	default:
-		pr_err("Not a valid output dev\n");
-		return 0;
-	}
-	return sst_sc_reg_access(sc_access, PMIC_WRITE, num_reg);
-}
-
-
-static int mx_set_voice_port(int status)
-{
-	int retval = 0;
-
-	if (snd_pmic_ops_mx.card_status == SND_CARD_UN_INIT) {
-		retval = mx_init_card();
-		if (retval)
-			return retval;
-	}
-	if (status == ACTIVATE)
-		retval = mx_set_pcm_voice_params();
-
-	return retval;
-}
-
-static int mx_set_audio_port(int status)
-{
-	return 0;
-}
-
-static int mx_set_selected_input_dev(u8 dev_id)
-{
-	struct sc_reg_access sc_access[2];
-	int num_reg = 0;
-	int retval = 0;
-
-	if (snd_pmic_ops_mx.card_status == SND_CARD_UN_INIT) {
-		retval = mx_init_card();
-		if (retval)
-			return retval;
-	}
-	snd_pmic_ops_mx.input_dev_id = dev_id;
-	pr_debug("mx_set_selected_input_dev dev_id:0x%x\n", dev_id);
-
-	switch (dev_id) {
-	case AMIC:
-		sc_access[0].reg_addr = 0x223;
-		sc_access[0].value = 0x00;
-		sc_access[0].mask = MASK7|MASK6|MASK5|MASK4|MASK0;
-		sc_access[1].reg_addr = 0x222;
-		sc_access[1].value = 0x50;
-		sc_access[1].mask = MASK7|MASK6|MASK5|MASK4;
-		num_reg = 2;
-		break;
-
-	case HS_MIC:
-		sc_access[0].reg_addr = 0x223;
-		sc_access[0].value = 0x20;
-		sc_access[0].mask = MASK7|MASK6|MASK5|MASK4|MASK0;
-		sc_access[1].reg_addr = 0x222;
-		sc_access[1].value = 0x51;
-		sc_access[1].mask = MASK7|MASK6|MASK5|MASK4;
-		num_reg = 2;
-		break;
-	case DMIC:
-		sc_access[1].reg_addr = 0x222;
-		sc_access[1].value = 0x00;
-		sc_access[1].mask = MASK7|MASK6|MASK5|MASK4|MASK0;
-		sc_access[0].reg_addr = 0x223;
-		sc_access[0].value = 0x20;
-		sc_access[0].mask = MASK7|MASK6|MASK5|MASK4|MASK0;
-		num_reg = 2;
-		break;
-	}
-	return sst_sc_reg_access(sc_access, PMIC_WRITE, num_reg);
-}
-
-static int mx_set_mute(int dev_id, u8 value)
-{
-	struct sc_reg_access sc_access[5];
-	int num_reg = 0;
-	int retval = 0;
-
-	if (snd_pmic_ops_mx.card_status == SND_CARD_UN_INIT) {
-		retval = mx_init_card();
-		if (retval)
-			return retval;
-	}
-
-
-	pr_debug("set_mute dev_id:0x%x , value:%d\n", dev_id, value);
-
-	switch (dev_id) {
-	case PMIC_SND_DMIC_MUTE:
-	case PMIC_SND_AMIC_MUTE:
-	case PMIC_SND_HP_MIC_MUTE:
-		sc_access[0].reg_addr =	0x220;
-		sc_access[1].reg_addr =	0x221;
-		sc_access[2].reg_addr =	0x223;
-		if (value == MUTE) {
-			sc_access[0].value = 0x00;
-			sc_access[1].value = 0x00;
-			if (snd_pmic_ops_mx.input_dev_id == DMIC)
-				sc_access[2].value = 0x00;
-			else
-				sc_access[2].value = 0x20;
-		} else {
-			sc_access[0].value = 0x20;
-			sc_access[1].value = 0x20;
-			if (snd_pmic_ops_mx.input_dev_id == DMIC)
-				sc_access[2].value = 0x20;
-			else
-				sc_access[2].value = 0x00;
-		}
-		sc_access[0].mask = MASK5|MASK6;
-		sc_access[1].mask = MASK5|MASK6;
-		sc_access[2].mask = MASK5|MASK6;
-		num_reg = 3;
-		break;
-	case PMIC_SND_LEFT_SPEAKER_MUTE:
-	case PMIC_SND_LEFT_HP_MUTE:
-		sc_access[0].reg_addr =	VOL_CTRL_LT;
-		if (value == MUTE)
-			sc_access[0].value = 0x40;
-		else
-			sc_access[0].value = 0x00;
-		sc_access[0].mask = MASK6;
-		num_reg = 1;
-		snd_pmic_ops_mx.mute_status = value;
-		break;
-	case PMIC_SND_RIGHT_SPEAKER_MUTE:
-	case PMIC_SND_RIGHT_HP_MUTE:
-		sc_access[0].reg_addr = VOL_CTRL_RT;
-		if (snd_pmic_ops_mx.num_channel == 1)
-			value = MUTE;
-		if (value == MUTE)
-			sc_access[0].value = 0x40;
-		else
-			sc_access[0].value = 0x00;
-		sc_access[0].mask = MASK6;
-		num_reg = 1;
-		snd_pmic_ops_mx.mute_status = value;
-		break;
-	case PMIC_SND_MUTE_ALL:
-		sc_access[0].reg_addr = VOL_CTRL_RT;
-		sc_access[1].reg_addr = VOL_CTRL_LT;
-		sc_access[2].reg_addr =	0x220;
-		sc_access[3].reg_addr =	0x221;
-		sc_access[4].reg_addr =	0x223;
-		snd_pmic_ops_mx.master_mute = value;
-		if (value == MUTE) {
-			sc_access[0].value = sc_access[1].value = 0x40;
-			sc_access[2].value = 0x00;
-			sc_access[3].value = 0x00;
-			if (snd_pmic_ops_mx.input_dev_id == DMIC)
-				sc_access[4].value = 0x00;
-			else
-				sc_access[4].value = 0x20;
-
-		} else {
-			sc_access[0].value = sc_access[1].value = 0x00;
-			sc_access[2].value = sc_access[3].value = 0x20;
-				sc_access[4].value = 0x20;
-			if (snd_pmic_ops_mx.input_dev_id == DMIC)
-				sc_access[4].value = 0x20;
-			else
-				sc_access[4].value = 0x00;
-
-
-		}
-		if (snd_pmic_ops_mx.num_channel == 1)
-			sc_access[0].value = 0x40;
-		sc_access[0].mask = sc_access[1].mask = MASK6;
-		sc_access[2].mask = MASK5|MASK6;
-		sc_access[3].mask = MASK5|MASK6|MASK2|MASK4;
-		sc_access[4].mask = MASK5|MASK6|MASK4;
-
-		num_reg = 5;
-		break;
-	case PMIC_SND_RECEIVER_MUTE:
-		sc_access[0].reg_addr =  VOL_CTRL_RT;
-		if (value == MUTE)
-			sc_access[0].value = 0x40;
-		else
-			sc_access[0].value = 0x00;
-		sc_access[0].mask = MASK6;
-		num_reg = 1;
-		break;
-	}
-
-	return sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, num_reg);
-}
-
-static int mx_set_vol(int dev_id, int value)
-{
-	struct sc_reg_access sc_access[2] = {{0},};
-	int num_reg = 0;
-	int retval = 0;
-
-	if (snd_pmic_ops_mx.card_status == SND_CARD_UN_INIT) {
-		retval = mx_init_card();
-		if (retval)
-			return retval;
-	}
-	pr_debug("set_vol dev_id:0x%x ,value:%d\n", dev_id, value);
-	switch (dev_id) {
-	case PMIC_SND_RECEIVER_VOL:
-		return 0;
-		break;
-	case PMIC_SND_CAPTURE_VOL:
-		sc_access[0].reg_addr =	0x220;
-		sc_access[1].reg_addr =	0x221;
-		sc_access[0].value = sc_access[1].value = -value;
-		sc_access[0].mask = sc_access[1].mask =
-			(MASK0|MASK1|MASK2|MASK3|MASK4);
-		num_reg = 2;
-		break;
-	case PMIC_SND_LEFT_PB_VOL:
-		sc_access[0].value = -value;
-		sc_access[0].reg_addr = VOL_CTRL_LT;
-		sc_access[0].mask = (MASK0|MASK1|MASK2|MASK3|MASK4|MASK5);
-		num_reg = 1;
-		break;
-	case PMIC_SND_RIGHT_PB_VOL:
-		sc_access[0].value = -value;
-		sc_access[0].reg_addr = VOL_CTRL_RT;
-		sc_access[0].mask = (MASK0|MASK1|MASK2|MASK3|MASK4|MASK5);
-		if (snd_pmic_ops_mx.num_channel == 1) {
-			sc_access[0].value = 0x40;
-			sc_access[0].mask = MASK6;
-			sc_access[0].reg_addr = VOL_CTRL_RT;
-		}
-		num_reg = 1;
-		break;
-	}
-	return sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, num_reg);
-}
-
-static int mx_get_mute(int dev_id, u8 *value)
-{
-	struct sc_reg_access sc_access[4] = {{0},};
-	int retval = 0, num_reg = 0, mask = 0;
-
-	if (snd_pmic_ops_mx.card_status == SND_CARD_UN_INIT) {
-		retval = mx_init_card();
-		if (retval)
-			return retval;
-	}
-	switch (dev_id) {
-	case PMIC_SND_DMIC_MUTE:
-	case PMIC_SND_AMIC_MUTE:
-	case PMIC_SND_HP_MIC_MUTE:
-		sc_access[0].reg_addr = 0x220;
-		mask = MASK5|MASK6;
-		num_reg = 1;
-		retval = sst_sc_reg_access(sc_access, PMIC_READ, num_reg);
-		if (retval)
-			return retval;
-		*value = sc_access[0].value & mask;
-		if (*value)
-			*value = UNMUTE;
-		else
-			*value = MUTE;
-		return retval;
-	case PMIC_SND_LEFT_HP_MUTE:
-	case PMIC_SND_LEFT_SPEAKER_MUTE:
-		sc_access[0].reg_addr = VOL_CTRL_LT;
-		num_reg = 1;
-		mask = MASK6;
-		break;
-	case PMIC_SND_RIGHT_HP_MUTE:
-	case PMIC_SND_RIGHT_SPEAKER_MUTE:
-		sc_access[0].reg_addr = VOL_CTRL_RT;
-		num_reg = 1;
-		mask = MASK6;
-		break;
-	}
-	retval = sst_sc_reg_access(sc_access, PMIC_READ, num_reg);
-	if (retval)
-		return retval;
-	*value = sc_access[0].value & mask;
-	if (*value)
-		*value = MUTE;
-	else
-		*value = UNMUTE;
-	return retval;
-}
-
-static int mx_get_vol(int dev_id, int *value)
-{
-	struct sc_reg_access sc_access = {0,};
-	int retval = 0, mask = 0, num_reg = 0;
-
-	if (snd_pmic_ops_mx.card_status == SND_CARD_UN_INIT) {
-		retval = mx_init_card();
-		if (retval)
-			return retval;
-	}
-	switch (dev_id) {
-	case PMIC_SND_CAPTURE_VOL:
-		sc_access.reg_addr = 0x220;
-		mask = MASK0|MASK1|MASK2|MASK3|MASK4;
-		num_reg = 1;
-		break;
-	case PMIC_SND_LEFT_PB_VOL:
-		sc_access.reg_addr = VOL_CTRL_LT;
-		mask = MASK0|MASK1|MASK2|MASK3|MASK4|MASK5;
-		num_reg = 1;
-		break;
-	case PMIC_SND_RIGHT_PB_VOL:
-		sc_access.reg_addr = VOL_CTRL_RT;
-		mask = MASK0|MASK1|MASK2|MASK3|MASK4|MASK5;
-		num_reg = 1;
-		break;
-	}
-	retval = sst_sc_reg_access(&sc_access, PMIC_READ, num_reg);
-	if (retval)
-		return retval;
-	*value = -(sc_access.value & mask);
-	pr_debug("get volume value extracted %d\n", *value);
-	return retval;
-}
-
-static u8 mx_get_jack_status(void)
-{
-	struct sc_reg_access sc_access_read = {0,};
-
-	sc_access_read.reg_addr = 0x201;
-	sst_sc_reg_access(&sc_access_read, PMIC_READ, 1);
-	pr_debug("value returned = 0x%x\n", sc_access_read.value);
-	return sc_access_read.value;
-}
-
-static void mx_pmic_irq_enable(void *data)
-{
-	struct snd_intelmad *intelmaddata = data;
-
-	intelmaddata->jack_prev_state = 0xc0;
-	return;
-}
-
-static void mx_pmic_irq_cb(void *cb_data, u8 intsts)
-{
-	u8 jack_cur_status, jack_prev_state = 0;
-	struct mad_jack *mjack = NULL;
-	unsigned int present = 0, jack_event_flag = 0, buttonpressflag = 0;
-	time_t  timediff;
-	struct snd_intelmad *intelmaddata = cb_data;
-
-	mjack = &intelmaddata->jack[0];
-	if (intsts & 0x2) {
-		jack_cur_status = mx_get_jack_status();
-		jack_prev_state = intelmaddata->jack_prev_state;
-		if ((jack_prev_state == 0xc0) && (jack_cur_status == 0x40)) {
-			/*headset insert detected. */
-			pr_debug("MAD headset inserted\n");
-			present = 1;
-			jack_event_flag = 1;
-			mjack->jack_status = 1;
-			mjack->jack.type = SND_JACK_HEADSET;
-		}
-
-		if ((jack_prev_state == 0xc0) && (jack_cur_status == 0x00)) {
-			/* headphone insert detected. */
-			pr_debug("MAD headphone inserted\n");
-			present = 1;
-			jack_event_flag = 1;
-			mjack->jack.type = SND_JACK_HEADPHONE;
-		}
-
-		if ((jack_prev_state == 0x40) && (jack_cur_status == 0xc0)) {
-			/* headset remove detected. */
-			pr_debug("MAD headset removed\n");
-
-			present = 0;
-			jack_event_flag = 1;
-			mjack->jack_status = 0;
-			mjack->jack.type = SND_JACK_HEADSET;
-		}
-
-		if ((jack_prev_state == 0x00) && (jack_cur_status == 0xc0)) {
-			/* headphone remove detected. */
-			pr_debug("MAD headphone removed\n");
-			present = 0;
-			jack_event_flag = 1;
-			mjack->jack.type = SND_JACK_HEADPHONE;
-		}
-
-		if ((jack_prev_state == 0x40) && (jack_cur_status == 0x00)) {
-			/* button pressed */
-			do_gettimeofday(&mjack->buttonpressed);
-			pr_debug("MAD button press detected\n");
-		}
-
-		if ((jack_prev_state == 0x00) && (jack_cur_status == 0x40)) {
-			if (mjack->jack_status) {
-				/*button pressed */
-				do_gettimeofday(
-					&mjack->buttonreleased);
-				/*button pressed */
-				pr_debug("MAD Button Released detected\n");
-				timediff = mjack->buttonreleased.tv_sec -
-					mjack->buttonpressed.tv_sec;
-				buttonpressflag = 1;
-
-				if (timediff > 1) {
-					pr_debug("MAD long press dtd\n");
-					/* send headphone detect/undetect */
-					present = 1;
-					jack_event_flag = 1;
-					mjack->jack.type =
-							MID_JACK_HS_LONG_PRESS;
-				} else {
-					pr_debug("MAD short press dtd\n");
-					/* send headphone detect/undetect */
-					present = 1;
-					jack_event_flag = 1;
-					mjack->jack.type =
-						MID_JACK_HS_SHORT_PRESS;
-				}
-			} else {
-				/***workaround for maxim
-				hw issue,0x00 t 0x40 is not
-				a valid transiton for Headset insertion */
-				/*headset insert detected. */
-				pr_debug("MAD headset inserted\n");
-				present = 1;
-				jack_event_flag = 1;
-				mjack->jack_status = 1;
-				mjack->jack.type = SND_JACK_HEADSET;
-			}
-		}
-		intelmaddata->jack_prev_state  = jack_cur_status;
-		pr_debug("mx_pmic_irq_cb prv_state= 0x%x\n",
-					intelmaddata->jack_prev_state);
-	}
-
-	if (jack_event_flag)
-		sst_mad_send_jack_report(&mjack->jack,
-						buttonpressflag, present);
-}
-static int mx_jack_enable(void)
-{
-	return 0;
-}
-
-struct snd_pmic_ops snd_pmic_ops_mx = {
-	.set_input_dev = mx_set_selected_input_dev,
-	.set_output_dev = mx_set_selected_output_dev,
-	.set_mute = mx_set_mute,
-	.get_mute = mx_get_mute,
-	.set_vol = mx_set_vol,
-	.get_vol = mx_get_vol,
-	.init_card = mx_init_card,
-	.set_pcm_audio_params = mx_set_pcm_audio_params,
-	.set_pcm_voice_params = mx_set_pcm_voice_params,
-	.set_voice_port = mx_set_voice_port,
-	.set_audio_port = mx_set_audio_port,
-	.power_up_pmic_pb =	mx_power_up_pb,
-	.power_up_pmic_cp =	mx_power_up_cp,
-	.power_down_pmic_pb =	mx_power_down_pb,
-	.power_down_pmic_cp =	mx_power_down_cp,
-	.power_down_pmic =	mx_power_down,
-	.pmic_irq_cb	 =	mx_pmic_irq_cb,
-	.pmic_irq_enable =	mx_pmic_irq_enable,
-	.pmic_jack_enable =	mx_jack_enable,
-};
-
diff --git a/drivers/staging/intel_sst/intelmid_v2_control.c b/drivers/staging/intel_sst/intelmid_v2_control.c
deleted file mode 100644
index 46ab55eb8097..000000000000
--- a/drivers/staging/intel_sst/intelmid_v2_control.c
+++ /dev/null
@@ -1,1156 +0,0 @@
-/*
- *  intelmid_v2_control.c - Intel Sound card driver for MID
- *
- *  Copyright (C) 2008-10 Intel Corp
- *  Authors:	Vinod Koul <vinod.koul@intel.com>
- *		Harsha Priya <priya.harsha@intel.com>
- *		KP Jeeja <jeeja.kp@intel.com>
- *		Dharageswari R <dharageswari.r@intel.com>
- *  ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This program is free software; you can redistribute it and/or modify
- *  it under the terms of the GNU General Public License as published by
- *  the Free Software Foundation; version 2 of the License.
- *
- *  This program is distributed in the hope that it will be useful, but
- *  WITHOUT ANY WARRANTY; without even the implied warranty of
- *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
- *  General Public License for more details.
- *
- *  You should have received a copy of the GNU General Public License along
- *  with this program; if not, write to the Free Software Foundation, Inc.,
- *  59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
- *
- * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
- *
- *  This file contains the control operations of vendor 3
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <linux/gpio.h>
-#include <linux/pci.h>
-#include <linux/delay.h>
-#include <linux/file.h>
-#include <sound/control.h>
-#include "intel_sst.h"
-#include "intelmid_snd_control.h"
-#include "intelmid.h"
-
-enum reg_v3 {
-	VAUDIOCNT = 0x51,
-	VOICEPORT1 = 0x100,
-	VOICEPORT2 = 0x101,
-	AUDIOPORT1 = 0x102,
-	AUDIOPORT2 = 0x103,
-	ADCSAMPLERATE = 0x104,
-	DMICCTRL1 = 0x105,
-	DMICCTRL2 = 0x106,
-	MICCTRL = 0x107,
-	MICSELVOL = 0x108,
-	LILSEL = 0x109,
-	LIRSEL = 0x10a,
-	VOICEVOL = 0x10b,
-	AUDIOLVOL = 0x10c,
-	AUDIORVOL = 0x10d,
-	LMUTE = 0x10e,
-	RMUTE = 0x10f,
-	POWERCTRL1 = 0x110,
-	POWERCTRL2 = 0x111,
-	DRVPOWERCTRL = 0x112,
-	VREFPLL = 0x113,
-	PCMBUFCTRL = 0x114,
-	SOFTMUTE = 0x115,
-	DTMFPATH = 0x116,
-	DTMFVOL = 0x117,
-	DTMFFREQ = 0x118,
-	DTMFHFREQ = 0x119,
-	DTMFLFREQ = 0x11a,
-	DTMFCTRL = 0x11b,
-	DTMFASON = 0x11c,
-	DTMFASOFF = 0x11d,
-	DTMFASINUM = 0x11e,
-	CLASSDVOL = 0x11f,
-	VOICEDACAVOL = 0x120,
-	AUDDACAVOL = 0x121,
-	LOMUTEVOL = 0x122,
-	HPLVOL = 0x123,
-	HPRVOL = 0x124,
-	MONOVOL = 0x125,
-	LINEOUTMIXVOL = 0x126,
-	EPMIXVOL = 0x127,
-	LINEOUTLSEL = 0x128,
-	LINEOUTRSEL = 0x129,
-	EPMIXOUTSEL = 0x12a,
-	HPLMIXSEL = 0x12b,
-	HPRMIXSEL = 0x12c,
-	LOANTIPOP = 0x12d,
-	AUXDBNC = 0x12f,
-};
-
-static void nc_set_amp_power(int power)
-{
-	if (snd_pmic_ops_nc.gpio_amp)
-		gpio_set_value(snd_pmic_ops_nc.gpio_amp, power);
-}
-
-/****
- * nc_init_card - initialize the sound card
- *
- * This initializes the audio paths to know values in case of this sound card
- */
-static int nc_init_card(void)
-{
-	struct sc_reg_access sc_access[] = {
-		{VAUDIOCNT, 0x25, 0},
-		{VOICEPORT1, 0x00, 0},
-		{VOICEPORT2, 0x00, 0},
-		{AUDIOPORT1, 0x98, 0},
-		{AUDIOPORT2, 0x09, 0},
-		{AUDIOLVOL, 0x00, 0},
-		{AUDIORVOL, 0x00, 0},
-		{LMUTE, 0x03, 0},
-		{RMUTE, 0x03, 0},
-		{POWERCTRL1, 0x00, 0},
-		{POWERCTRL2, 0x00, 0},
-		{DRVPOWERCTRL, 0x00, 0},
-		{VREFPLL, 0x10, 0},
-		{HPLMIXSEL, 0xee, 0},
-		{HPRMIXSEL, 0xf6, 0},
-		{PCMBUFCTRL, 0x0, 0},
-		{VOICEVOL, 0x0e, 0},
-		{HPLVOL, 0x06, 0},
-		{HPRVOL, 0x06, 0},
-		{MICCTRL, 0x51, 0x00},
-		{ADCSAMPLERATE, 0x8B, 0x00},
-		{MICSELVOL, 0x5B, 0x00},
-		{LILSEL, 0x06, 0},
-		{LIRSEL, 0x46, 0},
-		{LOANTIPOP, 0x00, 0},
-		{DMICCTRL1, 0x40, 0},
-		{AUXDBNC, 0xff, 0},
-	};
-	snd_pmic_ops_nc.card_status = SND_CARD_INIT_DONE;
-	snd_pmic_ops_nc.master_mute = UNMUTE;
-	snd_pmic_ops_nc.mute_status = UNMUTE;
-	sst_sc_reg_access(sc_access, PMIC_WRITE, 27);
-	mutex_init(&snd_pmic_ops_nc.lock);
-	pr_debug("init complete!!\n");
-	return 0;
-}
-
-static int nc_enable_audiodac(int value)
-{
-	struct sc_reg_access sc_access[3];
-	int mute_val = 0;
-
-	if (snd_pmic_ops_nc.mute_status == MUTE)
-		return 0;
-
-	if (((snd_pmic_ops_nc.output_dev_id == MONO_EARPIECE) ||
-		(snd_pmic_ops_nc.output_dev_id == INTERNAL_SPKR)) &&
-		(value == UNMUTE))
-		return 0;
-	if (value == UNMUTE) {
-			/* unmute the system, set the 7th bit to zero */
-			mute_val = 0x00;
-		} else {
-			/* MUTE:Set the seventh bit */
-			mute_val = 0x04;
-
-		}
-		sc_access[0].reg_addr = LMUTE;
-		sc_access[1].reg_addr = RMUTE;
-		sc_access[0].mask = sc_access[1].mask = MASK2;
-		sc_access[0].value = sc_access[1].value = mute_val;
-
-		if (snd_pmic_ops_nc.num_channel == 1)
-			sc_access[1].value = 0x04;
-		return sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 2);
-
-}
-
-static int nc_power_up_pb(unsigned int port)
-{
-	struct sc_reg_access sc_access[7];
-	int retval = 0;
-
-	if (snd_pmic_ops_nc.card_status == SND_CARD_UN_INIT)
-		retval = nc_init_card();
-	if (retval)
-		return retval;
-	if (port == 0xFF)
-		return 0;
-	mutex_lock(&snd_pmic_ops_nc.lock);
-	nc_enable_audiodac(MUTE);
-	msleep(30);
-
-	pr_debug("powering up pb....\n");
-
-	sc_access[0].reg_addr = VAUDIOCNT;
-	sc_access[0].value = 0x27;
-	sc_access[0].mask = 0x27;
-	sc_access[1].reg_addr = VREFPLL;
-	if (port == 0) {
-		sc_access[1].value = 0x3A;
-		sc_access[1].mask = 0x3A;
-	} else if (port == 1) {
-		sc_access[1].value = 0x35;
-		sc_access[1].mask = 0x35;
-	}
-	retval =  sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 2);
-
-
-
-	sc_access[0].reg_addr = POWERCTRL1;
-	if (port == 0) {
-		sc_access[0].value = 0x40;
-		sc_access[0].mask = 0x40;
-	} else if (port == 1) {
-		sc_access[0].value = 0x01;
-		sc_access[0].mask = 0x01;
-	}
-	sc_access[1].reg_addr = POWERCTRL2;
-	sc_access[1].value = 0x0C;
-	sc_access[1].mask = 0x0C;
-
-	sc_access[2].reg_addr = DRVPOWERCTRL;
-	sc_access[2].value = 0x86;
-	sc_access[2].mask = 0x86;
-
-	sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 3);
-
-	msleep(30);
-
-	snd_pmic_ops_nc.pb_on = 1;
-
-	/*
-	 * There is a mismatch between Playback Sources and the enumerated
-	 * values of output sources.  This mismatch causes ALSA upper to send
-	 * Item 1 for Internal Speaker, but the expected enumeration is 2!  For
-	 * now, treat MONO_EARPIECE and INTERNAL_SPKR identically and power up
-	 * the needed resources
-	 */
-	if (snd_pmic_ops_nc.output_dev_id == MONO_EARPIECE ||
-	    snd_pmic_ops_nc.output_dev_id == INTERNAL_SPKR)
-		nc_set_amp_power(1);
-	nc_enable_audiodac(UNMUTE);
-	mutex_unlock(&snd_pmic_ops_nc.lock);
-	return 0;
-}
-
-static int nc_power_up_cp(unsigned int port)
-{
-	struct sc_reg_access sc_access[5];
-	int retval = 0;
-
-
-	if (snd_pmic_ops_nc.card_status == SND_CARD_UN_INIT)
-		retval = nc_init_card();
-	if (retval)
-		return retval;
-
-
-	pr_debug("powering up cp....\n");
-
-	if (port == 0xFF)
-		return 0;
-	sc_access[0].reg_addr = VAUDIOCNT;
-	sc_access[0].value = 0x27;
-	sc_access[0].mask = 0x27;
-	sc_access[1].reg_addr = VREFPLL;
-	if (port == 0) {
-		sc_access[1].value = 0x3E;
-		sc_access[1].mask = 0x3E;
-	} else if (port == 1) {
-		sc_access[1].value = 0x35;
-		sc_access[1].mask = 0x35;
-	}
-
-	retval =  sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 2);
-
-
-	sc_access[0].reg_addr = POWERCTRL1;
-	if (port == 0) {
-		sc_access[0].value = 0xB4;
-		sc_access[0].mask = 0xB4;
-	} else if (port == 1) {
-		sc_access[0].value = 0xBF;
-		sc_access[0].mask = 0xBF;
-	}
-	sc_access[1].reg_addr = POWERCTRL2;
-	if (port == 0) {
-		sc_access[1].value = 0x0C;
-		sc_access[1].mask = 0x0C;
-	} else if (port == 1) {
-		sc_access[1].value = 0x02;
-		sc_access[1].mask = 0x02;
-	}
-
-	return  sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 2);
-
-}
-
-static int nc_power_down(void)
-{
-	int retval = 0;
-	struct sc_reg_access sc_access[5];
-
-	if (snd_pmic_ops_nc.card_status == SND_CARD_UN_INIT)
-		retval = nc_init_card();
-	if (retval)
-		return retval;
-	nc_enable_audiodac(MUTE);
-
-
-	pr_debug("powering dn nc_power_down ....\n");
-
-	if (snd_pmic_ops_nc.output_dev_id == MONO_EARPIECE ||
-	    snd_pmic_ops_nc.output_dev_id == INTERNAL_SPKR)
-		nc_set_amp_power(0);
-
-	msleep(30);
-
-	sc_access[0].reg_addr = DRVPOWERCTRL;
-	sc_access[0].value = 0x00;
-	sc_access[0].mask = 0x00;
-
-	sst_sc_reg_access(sc_access, PMIC_WRITE, 1);
-
-	sc_access[0].reg_addr = POWERCTRL1;
-	sc_access[0].value = 0x00;
-	sc_access[0].mask = 0x00;
-
-	sc_access[1].reg_addr = POWERCTRL2;
-	sc_access[1].value = 0x00;
-	sc_access[1].mask = 0x00;
-
-
-
-	sst_sc_reg_access(sc_access, PMIC_WRITE, 2);
-
-	msleep(30);
-	sc_access[0].reg_addr = VREFPLL;
-	sc_access[0].value = 0x10;
-	sc_access[0].mask = 0x10;
-
-	sc_access[1].reg_addr = VAUDIOCNT;
-	sc_access[1].value = 0x25;
-	sc_access[1].mask = 0x25;
-
-
-	retval =  sst_sc_reg_access(sc_access, PMIC_WRITE, 2);
-
-	msleep(30);
-	return nc_enable_audiodac(UNMUTE);
-}
-
-static int nc_power_down_pb(unsigned int device)
-{
-
-	int retval = 0;
-	struct sc_reg_access sc_access[5];
-
-	if (snd_pmic_ops_nc.card_status == SND_CARD_UN_INIT)
-		retval = nc_init_card();
-	if (retval)
-		return retval;
-
-	pr_debug("powering dn pb....\n");
-	mutex_lock(&snd_pmic_ops_nc.lock);
-	nc_enable_audiodac(MUTE);
-
-
-	msleep(30);
-
-
-	sc_access[0].reg_addr = DRVPOWERCTRL;
-	sc_access[0].value = 0x00;
-	sc_access[0].mask = 0x00;
-
-	sst_sc_reg_access(sc_access, PMIC_WRITE, 1);
-
-	msleep(30);
-
-	sc_access[0].reg_addr = POWERCTRL1;
-	sc_access[0].value = 0x00;
-	sc_access[0].mask = 0x41;
-
-	sc_access[1].reg_addr = POWERCTRL2;
-	sc_access[1].value = 0x00;
-	sc_access[1].mask = 0x0C;
-
-	sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 2);
-
-	msleep(30);
-
-	snd_pmic_ops_nc.pb_on = 0;
-
-	nc_enable_audiodac(UNMUTE);
-	mutex_unlock(&snd_pmic_ops_nc.lock);
-	return 0;
-}
-
-static int nc_power_down_cp(unsigned int device)
-{
-	struct sc_reg_access sc_access[] = {
-		{POWERCTRL1, 0x00, 0xBE},
-		{POWERCTRL2, 0x00, 0x02},
-	};
-	int retval = 0;
-
-	if (snd_pmic_ops_nc.card_status == SND_CARD_UN_INIT)
-		retval = nc_init_card();
-	if (retval)
-		return retval;
-
-	pr_debug("powering dn cp....\n");
-	return sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 1);
-}
-
-static int nc_set_pcm_voice_params(void)
-{
-	struct sc_reg_access sc_access[] = {
-			{0x100, 0xD5, 0},
-			{0x101, 0x08, 0},
-			{0x104, 0x03, 0},
-			{0x107, 0x10, 0},
-			{0x10B, 0x0E, 0},
-			{0x10E, 0x03, 0},
-			{0x10F, 0x03, 0},
-			{0x114, 0x13, 0},
-			{0x115, 0x00, 0},
-			{0x128, 0xFE, 0},
-			{0x129, 0xFE, 0},
-			{0x12A, 0xFE, 0},
-			{0x12B, 0xDE, 0},
-			{0x12C, 0xDE, 0},
-	};
-	int retval = 0;
-
-	if (snd_pmic_ops_nc.card_status == SND_CARD_UN_INIT)
-		retval = nc_init_card();
-	if (retval)
-		return retval;
-
-	sst_sc_reg_access(sc_access, PMIC_WRITE, 14);
-	pr_debug("Voice parameters set successfully!!\n");
-	return 0;
-}
-
-
-static int nc_set_pcm_audio_params(int sfreq, int word_size, int num_channel)
-{
-	int config2 = 0;
-	struct sc_reg_access sc_access;
-	int retval = 0;
-
-	if (snd_pmic_ops_nc.card_status == SND_CARD_UN_INIT)
-		retval = nc_init_card();
-	if (retval)
-		return retval;
-
-	switch (sfreq) {
-	case 8000:
-		config2 = 0x00;
-		break;
-	case 11025:
-		config2 = 0x01;
-		break;
-	case 12000:
-		config2 = 0x02;
-		break;
-	case 16000:
-		config2 = 0x03;
-		break;
-	case 22050:
-		config2 = 0x04;
-		break;
-	case 24000:
-		config2 = 0x05;
-		break;
-	case 32000:
-		config2 = 0x07;
-		break;
-	case 44100:
-		config2 = 0x08;
-		break;
-	case 48000:
-		config2 = 0x09;
-		break;
-	}
-
-	snd_pmic_ops_nc.num_channel = num_channel;
-	if (snd_pmic_ops_nc.num_channel == 1)	{
-
-		sc_access.value = 0x07;
-		sc_access.reg_addr = RMUTE;
-		pr_debug("RIGHT_HP_MUTE value%d\n", sc_access.value);
-		sc_access.mask = MASK2;
-		sst_sc_reg_access(&sc_access, PMIC_READ_MODIFY, 1);
-	} else {
-		sc_access.value = 0x00;
-		sc_access.reg_addr = RMUTE;
-		pr_debug("RIGHT_HP_MUTE value %d\n", sc_access.value);
-		sc_access.mask = MASK2;
-		sst_sc_reg_access(&sc_access, PMIC_READ_MODIFY, 1);
-
-
-	}
-
-	pr_debug("word_size = %d\n", word_size);
-
-	if (word_size == 24) {
-		sc_access.reg_addr = AUDIOPORT2;
-		sc_access.value = config2 | 0x10;
-		sc_access.mask = 0x1F;
-	} else {
-		sc_access.value = config2;
-		sc_access.mask = 0x1F;
-		sc_access.reg_addr = AUDIOPORT2;
-	}
-	sst_sc_reg_access(&sc_access, PMIC_READ_MODIFY, 1);
-
-	pr_debug("word_size = %d\n", word_size);
-	sc_access.reg_addr = AUDIOPORT1;
-	sc_access.mask = MASK5|MASK4|MASK1|MASK0;
-	if (word_size == 16)
-		sc_access.value = 0x98;
-	else if (word_size == 24)
-		sc_access.value = 0xAB;
-
-	return sst_sc_reg_access(&sc_access, PMIC_READ_MODIFY, 1);
-
-
-
-}
-
-static int nc_set_selected_output_dev(u8 value)
-{
-	struct sc_reg_access sc_access_HP[] = {
-		{LMUTE, 0x02, 0x06},
-		{RMUTE, 0x02, 0x06},
-		{DRVPOWERCTRL, 0x06, 0x06},
-	};
-	struct sc_reg_access sc_access_IS[] = {
-		{LMUTE, 0x04, 0x06},
-		{RMUTE, 0x04, 0x06},
-		{DRVPOWERCTRL, 0x00, 0x06},
-	};
-	int retval = 0;
-
-	snd_pmic_ops_nc.output_dev_id = value;
-	if (snd_pmic_ops_nc.card_status == SND_CARD_UN_INIT)
-		retval = nc_init_card();
-	if (retval)
-		return retval;
-	pr_debug("nc set selected output:%d\n", value);
-	mutex_lock(&snd_pmic_ops_nc.lock);
-	switch (value) {
-	case STEREO_HEADPHONE:
-		if (snd_pmic_ops_nc.pb_on)
-			sst_sc_reg_access(sc_access_HP+2, PMIC_WRITE, 1);
-		retval = sst_sc_reg_access(sc_access_HP, PMIC_WRITE, 2);
-		nc_set_amp_power(0);
-		break;
-	case MONO_EARPIECE:
-	case INTERNAL_SPKR:
-		retval = sst_sc_reg_access(sc_access_IS, PMIC_WRITE, 3);
-		if (snd_pmic_ops_nc.pb_on)
-			nc_set_amp_power(1);
-		break;
-	default:
-		pr_err("rcvd illegal request: %d\n", value);
-		mutex_unlock(&snd_pmic_ops_nc.lock);
-		return -EINVAL;
-	}
-	mutex_unlock(&snd_pmic_ops_nc.lock);
-	return retval;
-}
-
-static int nc_audio_init(void)
-{
-	struct sc_reg_access sc_acces, sc_access[] = {
-			{0x100, 0x00, 0},
-			{0x101, 0x00, 0},
-			{0x104, 0x8B, 0},
-			{0x107, 0x11, 0},
-			{0x10B, 0x0E, 0},
-			{0x114, 0x00, 0},
-			{0x115, 0x00, 0},
-			{0x128, 0x00, 0},
-			{0x129, 0x00, 0},
-			{0x12A, 0x00, 0},
-			{0x12B, 0xee, 0},
-			{0x12C, 0xf6, 0},
-	};
-
-	sst_sc_reg_access(sc_access, PMIC_WRITE, 12);
-	pr_debug("Audio Init successfully!!\n");
-
-	/*set output device */
-	nc_set_selected_output_dev(snd_pmic_ops_nc.output_dev_id);
-
-	if (snd_pmic_ops_nc.num_channel == 1) {
-		sc_acces.value = 0x07;
-		sc_acces.reg_addr = RMUTE;
-		pr_debug("RIGHT_HP_MUTE value%d\n", sc_acces.value);
-		sc_acces.mask = MASK2;
-		sst_sc_reg_access(&sc_acces, PMIC_READ_MODIFY, 1);
-	} else {
-		sc_acces.value = 0x00;
-		sc_acces.reg_addr = RMUTE;
-		pr_debug("RIGHT_HP_MUTE value%d\n", sc_acces.value);
-		sc_acces.mask = MASK2;
-		sst_sc_reg_access(&sc_acces, PMIC_READ_MODIFY, 1);
-	}
-
-	return 0;
-}
-
-static int nc_set_audio_port(int status)
-{
-	struct sc_reg_access sc_access[2] = {{0,},};
-	int retval = 0;
-
-	if (snd_pmic_ops_nc.card_status == SND_CARD_UN_INIT)
-		retval = nc_init_card();
-	if (retval)
-		return retval;
-
-	if (status == DEACTIVATE) {
-		/* Deactivate audio port-tristate and power */
-		sc_access[0].value = 0x00;
-		sc_access[0].mask = MASK4|MASK5;
-		sc_access[0].reg_addr = AUDIOPORT1;
-		return sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 1);
-	} else if (status == ACTIVATE) {
-		/* activate audio port */
-		nc_audio_init();
-		sc_access[0].value = 0x10;
-		sc_access[0].mask =  MASK4|MASK5 ;
-		sc_access[0].reg_addr = AUDIOPORT1;
-		return sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 1);
-	} else
-		return -EINVAL;
-
-}
-
-static int nc_set_voice_port(int status)
-{
-	struct sc_reg_access sc_access[2] = {{0,},};
-	int retval = 0;
-
-	if (snd_pmic_ops_nc.card_status == SND_CARD_UN_INIT)
-		retval = nc_init_card();
-	if (retval)
-		return retval;
-
-	if (status == DEACTIVATE) {
-		/* Activate Voice port */
-		sc_access[0].value = 0x00;
-		sc_access[0].mask = MASK4;
-		sc_access[0].reg_addr = VOICEPORT1;
-		return sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 1);
-	} else if (status == ACTIVATE) {
-		/* Deactivate voice port */
-		nc_set_pcm_voice_params();
-		sc_access[0].value = 0x10;
-		sc_access[0].mask = MASK4;
-		sc_access[0].reg_addr = VOICEPORT1;
-		return sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 1);
-	} else
-		return -EINVAL;
-}
-
-static int nc_set_mute(int dev_id, u8 value)
-{
-	struct sc_reg_access sc_access[3];
-	u8 mute_val, cap_mute;
-	int retval = 0;
-
-	if (snd_pmic_ops_nc.card_status == SND_CARD_UN_INIT)
-		retval = nc_init_card();
-	if (retval)
-		return retval;
-
-	pr_debug("set device id::%d, value %d\n", dev_id, value);
-
-	switch (dev_id) {
-	case PMIC_SND_MUTE_ALL:
-		pr_debug("PMIC_SND_MUTE_ALL value %d\n", value);
-		snd_pmic_ops_nc.mute_status = value;
-		snd_pmic_ops_nc.master_mute = value;
-		if (value == UNMUTE) {
-			/* unmute the system, set the 7th bit to zero */
-			mute_val = cap_mute = 0x00;
-		} else {
-			/* MUTE:Set the seventh bit */
-			mute_val = 0x80;
-			cap_mute = 0x40;
-		}
-		sc_access[0].reg_addr = AUDIOLVOL;
-		sc_access[1].reg_addr = AUDIORVOL;
-		sc_access[0].mask = sc_access[1].mask = MASK7;
-		sc_access[0].value = sc_access[1].value = mute_val;
-		if (snd_pmic_ops_nc.num_channel == 1)
-				sc_access[1].value = 0x80;
-		if (!sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 2)) {
-			sc_access[0].reg_addr = 0x109;
-			sc_access[1].reg_addr = 0x10a;
-			sc_access[2].reg_addr = 0x105;
-			sc_access[0].mask = sc_access[1].mask =
-				sc_access[2].mask = MASK6;
-			sc_access[0].value = sc_access[1].value =
-				sc_access[2].value = cap_mute;
-
-			if ((snd_pmic_ops_nc.input_dev_id == AMIC) ||
-				(snd_pmic_ops_nc.input_dev_id == DMIC))
-					sc_access[1].value = 0x40;
-			if (snd_pmic_ops_nc.input_dev_id == HS_MIC)
-					sc_access[0].value = 0x40;
-			retval = sst_sc_reg_access(sc_access,
-					PMIC_READ_MODIFY, 3);
-		}
-		break;
-	case PMIC_SND_HP_MIC_MUTE:
-		pr_debug("PMIC_SND_HPMIC_MUTE value %d\n", value);
-		if (value == UNMUTE) {
-			/* unmute the system, set the 6th bit to one */
-			sc_access[0].value = 0x00;
-		} else {
-			/* mute the system, reset the 6th bit to zero */
-			sc_access[0].value = 0x40;
-		}
-		sc_access[0].reg_addr = LIRSEL;
-		sc_access[0].mask = MASK6;
-		retval = sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 1);
-		break;
-	case PMIC_SND_AMIC_MUTE:
-		pr_debug("PMIC_SND_AMIC_MUTE value %d\n", value);
-		if (value == UNMUTE) {
-			/* unmute the system, set the 6th bit to one */
-			sc_access[0].value = 0x00;
-		} else {
-			/* mute the system, reset the 6th bit to zero */
-			sc_access[0].value = 0x40;
-		}
-		sc_access[0].reg_addr = LILSEL;
-		sc_access[0].mask = MASK6;
-		retval = sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 1);
-		break;
-
-	case PMIC_SND_DMIC_MUTE:
-		pr_debug("INPUT_MUTE_DMIC value%d\n", value);
-		if (value == UNMUTE) {
-			/* unmute the system, set the 6th bit to one */
-			sc_access[1].value = 0x00;
-			sc_access[0].value = 0x00;
-		} else {
-			/* mute the system, reset the 6th bit to zero */
-			sc_access[1].value = 0x40;
-			sc_access[0].value = 0x40;
-		}
-		sc_access[0].reg_addr = DMICCTRL1;
-		sc_access[0].mask = MASK6;
-		sc_access[1].reg_addr = LILSEL;
-		sc_access[1].mask = MASK6;
-		retval = sst_sc_reg_access(sc_access,
-					PMIC_READ_MODIFY, 2);
-		break;
-
-	case PMIC_SND_LEFT_HP_MUTE:
-	case PMIC_SND_RIGHT_HP_MUTE:
-		snd_pmic_ops_nc.mute_status = value;
-		if (value == UNMUTE)
-			sc_access[0].value = 0x0;
-		else
-			sc_access[0].value = 0x04;
-
-		if (dev_id == PMIC_SND_LEFT_HP_MUTE) {
-			sc_access[0].reg_addr = LMUTE;
-			pr_debug("LEFT_HP_MUTE value %d\n",
-					sc_access[0].value);
-		} else {
-			if (snd_pmic_ops_nc.num_channel == 1)
-				sc_access[0].value = 0x04;
-			sc_access[0].reg_addr = RMUTE;
-			pr_debug("RIGHT_HP_MUTE value %d\n",
-					sc_access[0].value);
-		}
-		sc_access[0].mask = MASK2;
-		retval = sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 1);
-		break;
-	case PMIC_SND_LEFT_SPEAKER_MUTE:
-	case PMIC_SND_RIGHT_SPEAKER_MUTE:
-		if (value == UNMUTE)
-			sc_access[0].value = 0x00;
-		else
-			sc_access[0].value = 0x03;
-		sc_access[0].reg_addr = LMUTE;
-		pr_debug("SPEAKER_MUTE %d\n", sc_access[0].value);
-		sc_access[0].mask = MASK1;
-		retval = sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, 1);
-		break;
-	default:
-		return -EINVAL;
-	}
-	return retval ;
-
-}
-
-static int nc_set_vol(int dev_id, int value)
-{
-	struct sc_reg_access sc_access[3];
-	int retval = 0, entries = 0;
-
-	if (snd_pmic_ops_nc.card_status == SND_CARD_UN_INIT)
-		retval = nc_init_card();
-	if (retval)
-		return retval;
-
-	pr_debug("set volume:%d\n", dev_id);
-	switch (dev_id) {
-	case PMIC_SND_CAPTURE_VOL:
-		pr_debug("PMIC_SND_CAPTURE_VOL:value::%d\n", value);
-		sc_access[0].value = sc_access[1].value =
-					sc_access[2].value = -value;
-		sc_access[0].mask = sc_access[1].mask = sc_access[2].mask =
-					(MASK0|MASK1|MASK2|MASK3|MASK4|MASK5);
-		sc_access[0].reg_addr = 0x10a;
-		sc_access[1].reg_addr = 0x109;
-		sc_access[2].reg_addr = 0x105;
-		entries = 3;
-		break;
-
-	case PMIC_SND_LEFT_PB_VOL:
-		pr_debug("PMIC_SND_LEFT_HP_VOL %d\n", value);
-		sc_access[0].value = -value;
-		sc_access[0].reg_addr  = HPLVOL;
-		sc_access[0].mask = (MASK0|MASK1|MASK2|MASK3|MASK4);
-		entries = 1;
-		break;
-
-	case PMIC_SND_RIGHT_PB_VOL:
-		pr_debug("PMIC_SND_RIGHT_HP_VOL value %d\n", value);
-		if (snd_pmic_ops_nc.num_channel == 1) {
-			sc_access[0].value = 0x04;
-			sc_access[0].reg_addr = RMUTE;
-			sc_access[0].mask = MASK2;
-		} else {
-			sc_access[0].value = -value;
-			sc_access[0].reg_addr  = HPRVOL;
-			sc_access[0].mask = (MASK0|MASK1|MASK2|MASK3|MASK4);
-		}
-		entries = 1;
-		break;
-
-	case PMIC_SND_LEFT_MASTER_VOL:
-		pr_debug("PMIC_SND_LEFT_MASTER_VOL value %d\n", value);
-		sc_access[0].value = -value;
-		sc_access[0].reg_addr = AUDIOLVOL;
-		sc_access[0].mask =
-			(MASK0|MASK1|MASK2|MASK3|MASK4|MASK5|MASK6);
-		entries = 1;
-		break;
-
-	case PMIC_SND_RIGHT_MASTER_VOL:
-		pr_debug("PMIC_SND_RIGHT_MASTER_VOL value %d\n", value);
-		sc_access[0].value = -value;
-		sc_access[0].reg_addr = AUDIORVOL;
-		sc_access[0].mask =
-				(MASK0|MASK1|MASK2|MASK3|MASK4|MASK5|MASK6);
-		entries = 1;
-		break;
-
-	default:
-		return -EINVAL;
-
-	}
-	return sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, entries);
-}
-
-static int nc_set_selected_input_dev(u8 value)
-{
-	struct sc_reg_access sc_access[6];
-	u8 num_val;
-	int retval = 0;
-
-	if (snd_pmic_ops_nc.card_status == SND_CARD_UN_INIT)
-		retval = nc_init_card();
-	if (retval)
-		return retval;
-	snd_pmic_ops_nc.input_dev_id = value;
-
-	pr_debug("nc set selected input:%d\n", value);
-
-	switch (value) {
-	case AMIC:
-		pr_debug("Selecting AMIC\n");
-		sc_access[0].reg_addr = 0x107;
-		sc_access[0].value = 0x40;
-		sc_access[0].mask =  MASK6|MASK3|MASK1|MASK0;
-		sc_access[1].reg_addr = 0x10a;
-		sc_access[1].value = 0x40;
-		sc_access[1].mask = MASK6;
-		sc_access[2].reg_addr = 0x109;
-		sc_access[2].value = 0x00;
-		sc_access[2].mask = MASK6;
-		sc_access[3].reg_addr = 0x105;
-		sc_access[3].value = 0x40;
-		sc_access[3].mask = MASK6;
-		num_val = 4;
-		break;
-
-	case HS_MIC:
-		pr_debug("Selecting HS_MIC\n");
-		sc_access[0].reg_addr = MICCTRL;
-		sc_access[0].mask =  MASK6|MASK3|MASK1|MASK0;
-		sc_access[0].value = 0x00;
-		sc_access[1].reg_addr = 0x109;
-		sc_access[1].mask = MASK6;
-		sc_access[1].value = 0x40;
-		sc_access[2].reg_addr = 0x10a;
-		sc_access[2].mask = MASK6;
-		sc_access[2].value = 0x00;
-		sc_access[3].reg_addr = 0x105;
-		sc_access[3].value = 0x40;
-		sc_access[3].mask = MASK6;
-		sc_access[4].reg_addr = ADCSAMPLERATE;
-		sc_access[4].mask = MASK7|MASK6|MASK5|MASK4|MASK3;
-		sc_access[4].value = 0xc8;
-		num_val = 5;
-		break;
-
-	case DMIC:
-		pr_debug("DMIC\n");
-		sc_access[0].reg_addr = MICCTRL;
-		sc_access[0].mask = MASK6|MASK3|MASK1|MASK0;
-		sc_access[0].value = 0x0B;
-		sc_access[1].reg_addr = 0x105;
-		sc_access[1].value = 0x80;
-		sc_access[1].mask = MASK7|MASK6;
-		sc_access[2].reg_addr = 0x10a;
-		sc_access[2].value = 0x40;
-		sc_access[2].mask = MASK6;
-		sc_access[3].reg_addr = LILSEL;
-		sc_access[3].mask = MASK6;
-		sc_access[3].value = 0x00;
-		sc_access[4].reg_addr = ADCSAMPLERATE;
-		sc_access[4].mask =  MASK7|MASK6|MASK5|MASK4|MASK3;
-		sc_access[4].value = 0x33;
-		num_val = 5;
-		break;
-	default:
-		return -EINVAL;
-	}
-	return sst_sc_reg_access(sc_access, PMIC_READ_MODIFY, num_val);
-}
-
-static int nc_get_mute(int dev_id, u8 *value)
-{
-	int retval = 0, mask = 0;
-	struct sc_reg_access sc_access = {0,};
-
-	if (snd_pmic_ops_nc.card_status == SND_CARD_UN_INIT)
-		retval = nc_init_card();
-	if (retval)
-		return retval;
-
-	pr_debug("get mute::%d\n", dev_id);
-
-	switch (dev_id) {
-	case PMIC_SND_AMIC_MUTE:
-		pr_debug("PMIC_SND_INPUT_MUTE_MIC1\n");
-		sc_access.reg_addr = LILSEL;
-		mask = MASK6;
-		break;
-	case PMIC_SND_HP_MIC_MUTE:
-		pr_debug("PMIC_SND_INPUT_MUTE_MIC2\n");
-		sc_access.reg_addr = LIRSEL;
-		mask = MASK6;
-		break;
-	case PMIC_SND_LEFT_HP_MUTE:
-	case PMIC_SND_RIGHT_HP_MUTE:
-		mask = MASK2;
-		pr_debug("PMIC_SN_LEFT/RIGHT_HP_MUTE\n");
-		if (dev_id == PMIC_SND_RIGHT_HP_MUTE)
-			sc_access.reg_addr = RMUTE;
-		else
-			sc_access.reg_addr = LMUTE;
-		break;
-
-	case PMIC_SND_LEFT_SPEAKER_MUTE:
-		pr_debug("PMIC_MONO_EARPIECE_MUTE\n");
-		sc_access.reg_addr = RMUTE;
-		mask = MASK1;
-		break;
-	case PMIC_SND_DMIC_MUTE:
-		pr_debug("PMIC_SND_INPUT_MUTE_DMIC\n");
-		sc_access.reg_addr = 0x105;
-		mask = MASK6;
-		break;
-	default:
-		return -EINVAL;
-
-	}
-	retval = sst_sc_reg_access(&sc_access, PMIC_READ, 1);
-	pr_debug("reg value = %d\n", sc_access.value);
-	if (retval)
-		return retval;
-	*value = (sc_access.value) & mask;
-	pr_debug("masked value = %d\n", *value);
-	if (*value)
-		*value = 0;
-	else
-		*value = 1;
-	pr_debug("value returned = 0x%x\n", *value);
-	return retval;
-}
-
-static int nc_get_vol(int dev_id, int *value)
-{
-	int retval = 0, mask = 0;
-	struct sc_reg_access sc_access = {0,};
-
-	if (snd_pmic_ops_nc.card_status == SND_CARD_UN_INIT)
-		retval = nc_init_card();
-	if (retval)
-		return retval;
-
-	switch (dev_id) {
-	case PMIC_SND_CAPTURE_VOL:
-		pr_debug("PMIC_SND_INPUT_CAPTURE_VOL\n");
-		sc_access.reg_addr =  LILSEL;
-		mask = (MASK0|MASK1|MASK2|MASK3|MASK4|MASK5);
-		break;
-
-	case PMIC_SND_LEFT_MASTER_VOL:
-		pr_debug("GET_VOLUME_PMIC_LEFT_MASTER_VOL\n");
-		sc_access.reg_addr = AUDIOLVOL;
-		mask = (MASK0|MASK1|MASK2|MASK3|MASK4|MASK5|MASK6);
-		break;
-
-	case PMIC_SND_RIGHT_MASTER_VOL:
-		pr_debug("GET_VOLUME_PMIC_RIGHT_MASTER_VOL\n");
-		sc_access.reg_addr = AUDIORVOL;
-		mask = (MASK0|MASK1|MASK2|MASK3|MASK4|MASK5|MASK6);
-		break;
-
-	case PMIC_SND_RIGHT_PB_VOL:
-		pr_debug("GET_VOLUME_PMIC_RIGHT_HP_VOL\n");
-		sc_access.reg_addr = HPRVOL;
-		mask = (MASK0|MASK1|MASK2|MASK3|MASK4);
-		break;
-
-	case PMIC_SND_LEFT_PB_VOL:
-		pr_debug("GET_VOLUME_PMIC_LEFT_HP_VOL\n");
-		sc_access.reg_addr = HPLVOL;
-		mask = (MASK0|MASK1|MASK2|MASK3|MASK4);
-		break;
-
-	default:
-		return -EINVAL;
-
-	}
-	retval = sst_sc_reg_access(&sc_access, PMIC_READ, 1);
-	pr_debug("value read = 0x%x\n", sc_access.value);
-	*value = -((sc_access.value) & mask);
-	pr_debug("get vol value returned = %d\n", *value);
-	return retval;
-}
-
-static void hp_automute(enum snd_jack_types type, int present)
-{
-	u8 in = DMIC;
-	u8 out = INTERNAL_SPKR;
-	if (present) {
-		if (type == SND_JACK_HEADSET)
-			in = HS_MIC;
-		out = STEREO_HEADPHONE;
-	}
-	nc_set_selected_input_dev(in);
-	nc_set_selected_output_dev(out);
-}
-
-static void nc_pmic_irq_cb(void *cb_data, u8 intsts)
-{
-	u8 value = 0;
-	struct mad_jack *mjack = NULL;
-	unsigned int present = 0, jack_event_flag = 0, buttonpressflag = 0;
-	struct snd_intelmad *intelmaddata = cb_data;
-	struct sc_reg_access sc_access_read = {0,};
-
-	sc_access_read.reg_addr = 0x132;
-	sst_sc_reg_access(&sc_access_read, PMIC_READ, 1);
-	value = (sc_access_read.value);
-	pr_debug("value returned = 0x%x\n", value);
-
-	mjack = &intelmaddata->jack[0];
-	if (intsts & 0x1) {
-		pr_debug("SST DBG:MAD headset detected\n");
-		/* send headset detect/undetect */
-		present = (value == 0x1) ? 3 : 0;
-		jack_event_flag = 1;
-		mjack->jack.type = SND_JACK_HEADSET;
-		hp_automute(SND_JACK_HEADSET, present);
-	}
-
-	if (intsts & 0x2) {
-		pr_debug(":MAD headphone detected\n");
-		/* send headphone detect/undetect */
-		present = (value == 0x2) ? 1 : 0;
-		jack_event_flag = 1;
-		mjack->jack.type = SND_JACK_HEADPHONE;
-		hp_automute(SND_JACK_HEADPHONE, present);
-	}
-
-	if (intsts & 0x4) {
-		pr_debug("MAD short push detected\n");
-		/* send short push */
-		present = 1;
-		jack_event_flag = 1;
-		buttonpressflag = 1;
-		mjack->jack.type = MID_JACK_HS_SHORT_PRESS;
-	}
-
-	if (intsts & 0x8) {
-		pr_debug(":MAD long push detected\n");
-		/* send long push */
-		present = 1;
-		jack_event_flag = 1;
-		buttonpressflag = 1;
-		mjack->jack.type = MID_JACK_HS_LONG_PRESS;
-	}
-
-	if (jack_event_flag)
-		sst_mad_send_jack_report(&mjack->jack,
-					buttonpressflag, present);
-}
-static int nc_jack_enable(void)
-{
-	return 0;
-}
-
-struct snd_pmic_ops snd_pmic_ops_nc = {
-	.input_dev_id   =       DMIC,
-	.output_dev_id  =       INTERNAL_SPKR,
-	.set_input_dev	=	nc_set_selected_input_dev,
-	.set_output_dev =	nc_set_selected_output_dev,
-	.set_mute	=	nc_set_mute,
-	.get_mute	=	nc_get_mute,
-	.set_vol	=	nc_set_vol,
-	.get_vol	=	nc_get_vol,
-	.init_card	=	nc_init_card,
-	.set_pcm_audio_params	= nc_set_pcm_audio_params,
-	.set_pcm_voice_params	= nc_set_pcm_voice_params,
-	.set_voice_port = nc_set_voice_port,
-	.set_audio_port = nc_set_audio_port,
-	.power_up_pmic_pb =	nc_power_up_pb,
-	.power_up_pmic_cp =	nc_power_up_cp,
-	.power_down_pmic_pb =	nc_power_down_pb,
-	.power_down_pmic_cp =	nc_power_down_cp,
-	.power_down_pmic	=	nc_power_down,
-	.pmic_irq_cb	=	nc_pmic_irq_cb,
-	.pmic_jack_enable =	nc_jack_enable,
-};
diff --git a/drivers/staging/line6/Makefile b/drivers/staging/line6/Makefile
index de6bd12e9736..34a2ddacc7e9 100644
--- a/drivers/staging/line6/Makefile
+++ b/drivers/staging/line6/Makefile
@@ -12,4 +12,5 @@ line6usb-y := 		\
 		playback.o	\
 		pod.o		\
 		toneport.o	\
-		variax.o
+		variax.o	\
+		podhd.o
diff --git a/drivers/staging/line6/capture.c b/drivers/staging/line6/capture.c
index 9647154a4923..127f95247749 100644
--- a/drivers/staging/line6/capture.c
+++ b/drivers/staging/line6/capture.c
@@ -9,6 +9,7 @@
  *
  */
 
+#include <linux/slab.h>
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
@@ -192,6 +193,31 @@ void line6_capture_check_period(struct snd_line6_pcm *line6pcm, int length)
 	}
 }
 
+int line6_alloc_capture_buffer(struct snd_line6_pcm *line6pcm)
+{
+	/* We may be invoked multiple times in a row so allocate once only */
+	if (line6pcm->buffer_in)
+		return 0;
+
+	line6pcm->buffer_in =
+		kmalloc(LINE6_ISO_BUFFERS * LINE6_ISO_PACKETS *
+			line6pcm->max_packet_size, GFP_KERNEL);
+
+	if (!line6pcm->buffer_in) {
+		dev_err(line6pcm->line6->ifcdev,
+			"cannot malloc capture buffer\n");
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+
+void line6_free_capture_buffer(struct snd_line6_pcm *line6pcm)
+{
+	kfree(line6pcm->buffer_in);
+	line6pcm->buffer_in = NULL;
+}
+
 /*
  * Callback for completed capture URB.
  */
@@ -243,11 +269,7 @@ static void audio_in_callback(struct urb *urb)
 		length += fsize;
 
 		/* the following assumes LINE6_ISO_PACKETS == 1: */
-#if LINE6_BACKUP_MONITOR_SIGNAL
-		memcpy(line6pcm->prev_fbuf, fbuf, fsize);
-#else
 		line6pcm->prev_fbuf = fbuf;
-#endif
 		line6pcm->prev_fsize = fsize;
 
 #ifdef CONFIG_LINE6_USB_IMPULSE_RESPONSE
@@ -319,6 +341,13 @@ static int snd_line6_capture_hw_params(struct snd_pcm_substream *substream,
 	}
 	/* -- [FD] end */
 
+	if ((line6pcm->flags & MASK_CAPTURE) == 0) {
+		ret = line6_alloc_capture_buffer(line6pcm);
+
+		if (ret < 0)
+			return ret;
+	}
+
 	ret = snd_pcm_lib_malloc_pages(substream,
 				       params_buffer_bytes(hw_params));
 	if (ret < 0)
@@ -331,6 +360,13 @@ static int snd_line6_capture_hw_params(struct snd_pcm_substream *substream,
 /* hw_free capture callback */
 static int snd_line6_capture_hw_free(struct snd_pcm_substream *substream)
 {
+	struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream);
+
+	if ((line6pcm->flags & MASK_CAPTURE) == 0) {
+		line6_unlink_wait_clear_audio_in_urbs(line6pcm);
+		line6_free_capture_buffer(line6pcm);
+	}
+
 	return snd_pcm_lib_free_pages(substream);
 }
 
diff --git a/drivers/staging/line6/capture.h b/drivers/staging/line6/capture.h
index a7509fbbb954..366cbaa7c88d 100644
--- a/drivers/staging/line6/capture.h
+++ b/drivers/staging/line6/capture.h
@@ -19,11 +19,13 @@
 
 extern struct snd_pcm_ops snd_line6_capture_ops;
 
+extern int line6_alloc_capture_buffer(struct snd_line6_pcm *line6pcm);
 extern void line6_capture_copy(struct snd_line6_pcm *line6pcm, char *fbuf,
 			       int fsize);
 extern void line6_capture_check_period(struct snd_line6_pcm *line6pcm,
 				       int length);
 extern int line6_create_audio_in_urbs(struct snd_line6_pcm *line6pcm);
+extern void line6_free_capture_buffer(struct snd_line6_pcm *line6pcm);
 extern int line6_submit_audio_in_all_urbs(struct snd_line6_pcm *line6pcm);
 extern void line6_unlink_audio_in_urbs(struct snd_line6_pcm *line6pcm);
 extern void line6_unlink_wait_clear_audio_in_urbs(struct snd_line6_pcm
diff --git a/drivers/staging/line6/driver.c b/drivers/staging/line6/driver.c
index 851b762319cf..6a1959e16e00 100644
--- a/drivers/staging/line6/driver.c
+++ b/drivers/staging/line6/driver.c
@@ -21,6 +21,7 @@
 #include "midi.h"
 #include "playback.h"
 #include "pod.h"
+#include "podhd.h"
 #include "revision.h"
 #include "toneport.h"
 #include "usbdefs.h"
@@ -37,6 +38,8 @@ static const struct usb_device_id line6_id_table[] = {
 	{USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_BASSPODXTPRO)},
 	{USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_GUITARPORT)},
 	{USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_POCKETPOD)},
+	{USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_PODHD300)},
+	{USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_PODHD500)},
 	{USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_PODSTUDIO_GX)},
 	{USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_PODSTUDIO_UX1)},
 	{USB_DEVICE(LINE6_VENDOR_ID, LINE6_DEVID_PODSTUDIO_UX2)},
@@ -56,23 +59,25 @@ MODULE_DEVICE_TABLE(usb, line6_id_table);
 
 /* *INDENT-OFF* */
 static struct line6_properties line6_properties_table[] = {
-	{ "BassPODxt",     "BassPODxt",        LINE6_BIT_BASSPODXT,     LINE6_BIT_CONTROL_PCM_HWMON },
-	{ "BassPODxtLive", "BassPODxt Live",   LINE6_BIT_BASSPODXTLIVE, LINE6_BIT_CONTROL_PCM_HWMON },
-	{ "BassPODxtPro",  "BassPODxt Pro",    LINE6_BIT_BASSPODXTPRO,  LINE6_BIT_CONTROL_PCM_HWMON },
-	{ "GuitarPort",    "GuitarPort",       LINE6_BIT_GUITARPORT,    LINE6_BIT_PCM               },
-	{ "PocketPOD",     "Pocket POD",       LINE6_BIT_POCKETPOD,     LINE6_BIT_CONTROL           },
-	{ "PODStudioGX",   "POD Studio GX",    LINE6_BIT_PODSTUDIO_GX,  LINE6_BIT_PCM               },
-	{ "PODStudioUX1",  "POD Studio UX1",   LINE6_BIT_PODSTUDIO_UX1, LINE6_BIT_PCM               },
-	{ "PODStudioUX2",  "POD Studio UX2",   LINE6_BIT_PODSTUDIO_UX2, LINE6_BIT_PCM               },
-	{ "PODX3",         "POD X3",           LINE6_BIT_PODX3,         LINE6_BIT_PCM               },
-	{ "PODX3Live",     "POD X3 Live",      LINE6_BIT_PODX3LIVE,     LINE6_BIT_PCM               },
-	{ "PODxt",         "PODxt",            LINE6_BIT_PODXT,         LINE6_BIT_CONTROL_PCM_HWMON },
-	{ "PODxtLive",     "PODxt Live",       LINE6_BIT_PODXTLIVE,     LINE6_BIT_CONTROL_PCM_HWMON },
-	{ "PODxtPro",      "PODxt Pro",        LINE6_BIT_PODXTPRO,      LINE6_BIT_CONTROL_PCM_HWMON },
-	{ "TonePortGX",    "TonePort GX",      LINE6_BIT_TONEPORT_GX,   LINE6_BIT_PCM               },
-	{ "TonePortUX1",   "TonePort UX1",     LINE6_BIT_TONEPORT_UX1,  LINE6_BIT_PCM               },
-	{ "TonePortUX2",   "TonePort UX2",     LINE6_BIT_TONEPORT_UX2,  LINE6_BIT_PCM               },
-	{ "Variax",        "Variax Workbench", LINE6_BIT_VARIAX,        LINE6_BIT_CONTROL           }
+	{ LINE6_BIT_BASSPODXT,     "BassPODxt",     "BassPODxt",        LINE6_BIT_CONTROL_PCM_HWMON },
+	{ LINE6_BIT_BASSPODXTLIVE, "BassPODxtLive", "BassPODxt Live",   LINE6_BIT_CONTROL_PCM_HWMON },
+	{ LINE6_BIT_BASSPODXTPRO,  "BassPODxtPro",  "BassPODxt Pro",    LINE6_BIT_CONTROL_PCM_HWMON },
+	{ LINE6_BIT_GUITARPORT,    "GuitarPort",    "GuitarPort",       LINE6_BIT_PCM               },
+	{ LINE6_BIT_POCKETPOD,     "PocketPOD",     "Pocket POD",       LINE6_BIT_CONTROL           },
+	{ LINE6_BIT_PODHD300,      "PODHD300",      "POD HD300",        LINE6_BIT_CONTROL_PCM_HWMON },
+	{ LINE6_BIT_PODHD500,      "PODHD500",      "POD HD500",        LINE6_BIT_CONTROL_PCM_HWMON },
+	{ LINE6_BIT_PODSTUDIO_GX,  "PODStudioGX",   "POD Studio GX",    LINE6_BIT_PCM               },
+	{ LINE6_BIT_PODSTUDIO_UX1, "PODStudioUX1",  "POD Studio UX1",   LINE6_BIT_PCM               },
+	{ LINE6_BIT_PODSTUDIO_UX2, "PODStudioUX2",  "POD Studio UX2",   LINE6_BIT_PCM               },
+	{ LINE6_BIT_PODX3,         "PODX3",         "POD X3",           LINE6_BIT_PCM               },
+	{ LINE6_BIT_PODX3LIVE,     "PODX3Live",     "POD X3 Live",      LINE6_BIT_PCM               },
+	{ LINE6_BIT_PODXT,         "PODxt",         "PODxt",            LINE6_BIT_CONTROL_PCM_HWMON },
+	{ LINE6_BIT_PODXTLIVE,     "PODxtLive",     "PODxt Live",       LINE6_BIT_CONTROL_PCM_HWMON },
+	{ LINE6_BIT_PODXTPRO,      "PODxtPro",      "PODxt Pro",        LINE6_BIT_CONTROL_PCM_HWMON },
+	{ LINE6_BIT_TONEPORT_GX,   "TonePortGX",    "TonePort GX",      LINE6_BIT_PCM               },
+	{ LINE6_BIT_TONEPORT_UX1,  "TonePortUX1",   "TonePort UX1",     LINE6_BIT_PCM               },
+	{ LINE6_BIT_TONEPORT_UX2,  "TonePortUX2",   "TonePort UX2",     LINE6_BIT_PCM               },
+	{ LINE6_BIT_VARIAX,        "Variax",        "Variax Workbench", LINE6_BIT_CONTROL           },
 };
 /* *INDENT-ON* */
 
@@ -437,6 +442,10 @@ static void line6_data_received(struct urb *urb)
 						  line6);
 			break;
 
+		case LINE6_DEVID_PODHD300:
+		case LINE6_DEVID_PODHD500:
+			break; /* let userspace handle MIDI */
+
 		case LINE6_DEVID_PODXTLIVE:
 			switch (line6->interface_number) {
 			case PODXTLIVE_INTERFACE_POD:
@@ -720,8 +729,8 @@ static int line6_probe(struct usb_interface *interface,
 		       const struct usb_device_id *id)
 {
 	int devtype;
-	struct usb_device *usbdev = NULL;
-	struct usb_line6 *line6 = NULL;
+	struct usb_device *usbdev;
+	struct usb_line6 *line6;
 	const struct line6_properties *properties;
 	int devnum;
 	int interface_number, alternate = 0;
@@ -794,6 +803,7 @@ static int line6_probe(struct usb_interface *interface,
 		}
 		break;
 
+	case LINE6_DEVID_PODHD500:
 	case LINE6_DEVID_PODX3:
 	case LINE6_DEVID_PODX3LIVE:
 		switch (interface_number) {
@@ -812,6 +822,7 @@ static int line6_probe(struct usb_interface *interface,
 	case LINE6_DEVID_BASSPODXTPRO:
 	case LINE6_DEVID_PODXT:
 	case LINE6_DEVID_PODXTPRO:
+	case LINE6_DEVID_PODHD300:
 		alternate = 5;
 		break;
 
@@ -865,6 +876,18 @@ static int line6_probe(struct usb_interface *interface,
 		ep_write = 0x03;
 		break;
 
+	case LINE6_DEVID_PODHD300:
+		size = sizeof(struct usb_line6_podhd);
+		ep_read = 0x84;
+		ep_write = 0x03;
+		break;
+
+	case LINE6_DEVID_PODHD500:
+		size = sizeof(struct usb_line6_podhd);
+		ep_read = 0x81;
+		ep_write = 0x01;
+		break;
+
 	case LINE6_DEVID_POCKETPOD:
 		size = sizeof(struct usb_line6_pod);
 		ep_read = 0x82;
@@ -923,7 +946,7 @@ static int line6_probe(struct usb_interface *interface,
 	}
 
 	if (size == 0) {
-		dev_err(line6->ifcdev,
+		dev_err(&interface->dev,
 			"driver bug: interface data size not set\n");
 		ret = -ENODEV;
 		goto err_put;
@@ -1017,6 +1040,12 @@ static int line6_probe(struct usb_interface *interface,
 		ret = line6_pod_init(interface, (struct usb_line6_pod *)line6);
 		break;
 
+	case LINE6_DEVID_PODHD300:
+	case LINE6_DEVID_PODHD500:
+		ret = line6_podhd_init(interface,
+				       (struct usb_line6_podhd *)line6);
+		break;
+
 	case LINE6_DEVID_PODXTLIVE:
 		switch (interface_number) {
 		case PODXTLIVE_INTERFACE_POD:
@@ -1139,6 +1168,11 @@ static void line6_disconnect(struct usb_interface *interface)
 			line6_pod_disconnect(interface);
 			break;
 
+		case LINE6_DEVID_PODHD300:
+		case LINE6_DEVID_PODHD500:
+			line6_podhd_disconnect(interface);
+			break;
+
 		case LINE6_DEVID_PODXTLIVE:
 			switch (interface_number) {
 			case PODXTLIVE_INTERFACE_POD:
diff --git a/drivers/staging/line6/driver.h b/drivers/staging/line6/driver.h
index 553192f49317..117bf9943568 100644
--- a/drivers/staging/line6/driver.h
+++ b/drivers/staging/line6/driver.h
@@ -88,6 +88,11 @@ static const int SYSEX_EXTRA_SIZE = sizeof(line6_midi_id) + 4;
 */
 struct line6_properties {
 	/**
+		 Bit identifying this device in the line6usb driver.
+	*/
+	int device_bit;
+
+	/**
 		 Card id string (maximum 16 characters).
 		 This can be used to address the device in ALSA programs as
 		 "default:CARD=<id>"
@@ -100,11 +105,6 @@ struct line6_properties {
 	const char *name;
 
 	/**
-		 Bit identifying this device in the line6usb driver.
-	*/
-	int device_bit;
-
-	/**
 		 Bit vector defining this device's capabilities in the
 		 line6usb driver.
 	*/
diff --git a/drivers/staging/line6/midi.c b/drivers/staging/line6/midi.c
index e554a2da643a..13d02939c3cb 100644
--- a/drivers/staging/line6/midi.c
+++ b/drivers/staging/line6/midi.c
@@ -135,7 +135,7 @@ static int send_midi_async(struct usb_line6 *line6, unsigned char *data,
 	line6_write_hexdump(line6, 'S', data, length);
 #endif
 
-	transfer_buffer = kmalloc(length, GFP_ATOMIC);
+	transfer_buffer = kmemdup(data, length, GFP_ATOMIC);
 
 	if (transfer_buffer == NULL) {
 		usb_free_urb(urb);
@@ -143,7 +143,6 @@ static int send_midi_async(struct usb_line6 *line6, unsigned char *data,
 		return -ENOMEM;
 	}
 
-	memcpy(transfer_buffer, data, length);
 	usb_fill_int_urb(urb, line6->usbdev,
 			 usb_sndbulkpipe(line6->usbdev,
 					 line6->ep_control_write),
@@ -173,6 +172,8 @@ static int send_midi_async(struct usb_line6 *line6, unsigned char *data,
 		break;
 
 	case LINE6_DEVID_VARIAX:
+	case LINE6_DEVID_PODHD300:
+	case LINE6_DEVID_PODHD500:
 		break;
 
 	default:
@@ -307,10 +308,10 @@ static ssize_t midi_set_midi_mask_transmit(struct device *dev,
 {
 	struct usb_interface *interface = to_usb_interface(dev);
 	struct usb_line6 *line6 = usb_get_intfdata(interface);
-	unsigned long value;
+	unsigned short value;
 	int ret;
 
-	ret = strict_strtoul(buf, 10, &value);
+	ret = kstrtou16(buf, 10, &value);
 	if (ret)
 		return ret;
 
@@ -339,10 +340,10 @@ static ssize_t midi_set_midi_mask_receive(struct device *dev,
 {
 	struct usb_interface *interface = to_usb_interface(dev);
 	struct usb_line6 *line6 = usb_get_intfdata(interface);
-	unsigned long value;
+	unsigned short value;
 	int ret;
 
-	ret = strict_strtoul(buf, 10, &value);
+	ret = kstrtou16(buf, 10, &value);
 	if (ret)
 		return ret;
 
@@ -391,16 +392,32 @@ int line6_init_midi(struct usb_line6 *line6)
 		return -ENOMEM;
 
 	err = line6_midibuf_init(&line6midi->midibuf_in, MIDI_BUFFER_SIZE, 0);
-	if (err < 0)
+	if (err < 0) {
+		kfree(line6midi);
 		return err;
+	}
 
 	err = line6_midibuf_init(&line6midi->midibuf_out, MIDI_BUFFER_SIZE, 1);
-	if (err < 0)
+	if (err < 0) {
+		kfree(line6midi->midibuf_in.buf);
+		kfree(line6midi);
 		return err;
+	}
 
 	line6midi->line6 = line6;
-	line6midi->midi_mask_transmit = 1;
-	line6midi->midi_mask_receive = 4;
+
+	switch(line6->product) {
+	case LINE6_DEVID_PODHD300:
+	case LINE6_DEVID_PODHD500:
+		line6midi->midi_mask_transmit = 1;
+		line6midi->midi_mask_receive = 1;
+		break;
+
+	default:
+		line6midi->midi_mask_transmit = 1;
+		line6midi->midi_mask_receive = 4;
+	}
+
 	line6->line6midi = line6midi;
 
 	err = snd_device_new(line6->card, SNDRV_DEV_RAWMIDI, line6midi,
diff --git a/drivers/staging/line6/midi.h b/drivers/staging/line6/midi.h
index b73a025d8be9..4a9e9f947297 100644
--- a/drivers/staging/line6/midi.h
+++ b/drivers/staging/line6/midi.h
@@ -57,12 +57,12 @@ struct snd_line6_midi {
 	/**
 		 Bit mask for output MIDI channels.
 	*/
-	int midi_mask_transmit;
+	unsigned short midi_mask_transmit;
 
 	/**
 		 Bit mask for input MIDI channels.
 	*/
-	int midi_mask_receive;
+	unsigned short midi_mask_receive;
 
 	/**
 		 Buffer for incoming MIDI stream.
diff --git a/drivers/staging/line6/pcm.c b/drivers/staging/line6/pcm.c
index 9d4c8a606eea..37675e66da81 100644
--- a/drivers/staging/line6/pcm.c
+++ b/drivers/staging/line6/pcm.c
@@ -86,31 +86,22 @@ static DEVICE_ATTR(impulse_period, S_IWUSR | S_IRUGO, pcm_get_impulse_period,
 
 #endif
 
+static bool test_flags(unsigned long flags0, unsigned long flags1,
+		       unsigned long mask)
+{
+	return ((flags0 & mask) == 0) && ((flags1 & mask) != 0);
+}
+
 int line6_pcm_start(struct snd_line6_pcm *line6pcm, int channels)
 {
 	unsigned long flags_old =
 	    __sync_fetch_and_or(&line6pcm->flags, channels);
 	unsigned long flags_new = flags_old | channels;
 	int err = 0;
-
-#if LINE6_BACKUP_MONITOR_SIGNAL
-	if (!(line6pcm->line6->properties->capabilities & LINE6_BIT_HWMON)) {
-		line6pcm->prev_fbuf =
-		    kmalloc(LINE6_ISO_PACKETS * line6pcm->max_packet_size,
-			    GFP_KERNEL);
-
-		if (!line6pcm->prev_fbuf) {
-			dev_err(line6pcm->line6->ifcdev,
-				"cannot malloc monitor buffer\n");
-			return -ENOMEM;
-		}
-	}
-#else
+	
 	line6pcm->prev_fbuf = NULL;
-#endif
 
-	if (((flags_old & MASK_CAPTURE) == 0) &&
-	    ((flags_new & MASK_CAPTURE) != 0)) {
+	if (test_flags(flags_old, flags_new, MASK_CAPTURE)) {
 		/*
 		   Waiting for completion of active URBs in the stop handler is
 		   a bug, we therefore report an error if capturing is restarted
@@ -119,54 +110,47 @@ int line6_pcm_start(struct snd_line6_pcm *line6pcm, int channels)
 		if (line6pcm->active_urb_in | line6pcm->unlink_urb_in)
 			return -EBUSY;
 
-		line6pcm->buffer_in =
-		    kmalloc(LINE6_ISO_BUFFERS * LINE6_ISO_PACKETS *
-			    line6pcm->max_packet_size, GFP_KERNEL);
+		if (!(flags_new & MASK_PCM_ALSA_CAPTURE)) {
+			err = line6_alloc_capture_buffer(line6pcm);
 
-		if (!line6pcm->buffer_in) {
-			dev_err(line6pcm->line6->ifcdev,
-				"cannot malloc capture buffer\n");
-			return -ENOMEM;
+			if (err < 0)
+				goto pcm_start_error;
 		}
 
 		line6pcm->count_in = 0;
 		line6pcm->prev_fsize = 0;
 		err = line6_submit_audio_in_all_urbs(line6pcm);
 
-		if (err < 0) {
-			__sync_fetch_and_and(&line6pcm->flags, ~channels);
-			return err;
-		}
+		if (err < 0)
+			goto pcm_start_error;
 	}
 
-	if (((flags_old & MASK_PLAYBACK) == 0) &&
-	    ((flags_new & MASK_PLAYBACK) != 0)) {
+	if (test_flags(flags_old, flags_new, MASK_PLAYBACK)) {
 		/*
 		   See comment above regarding PCM restart.
 		 */
 		if (line6pcm->active_urb_out | line6pcm->unlink_urb_out)
 			return -EBUSY;
 
-		line6pcm->buffer_out =
-		    kmalloc(LINE6_ISO_BUFFERS * LINE6_ISO_PACKETS *
-			    line6pcm->max_packet_size, GFP_KERNEL);
+		if (!(flags_new & MASK_PCM_ALSA_PLAYBACK)) {
+			err = line6_alloc_playback_buffer(line6pcm);
 
-		if (!line6pcm->buffer_out) {
-			dev_err(line6pcm->line6->ifcdev,
-				"cannot malloc playback buffer\n");
-			return -ENOMEM;
+			if (err < 0)
+				goto pcm_start_error;
 		}
 
 		line6pcm->count_out = 0;
 		err = line6_submit_audio_out_all_urbs(line6pcm);
 
-		if (err < 0) {
-			__sync_fetch_and_and(&line6pcm->flags, ~channels);
-			return err;
-		}
+		if (err < 0)
+			goto pcm_start_error;
 	}
 
 	return 0;
+
+pcm_start_error:
+	__sync_fetch_and_and(&line6pcm->flags, ~channels);
+	return err;
 }
 
 int line6_pcm_stop(struct snd_line6_pcm *line6pcm, int channels)
@@ -175,22 +159,19 @@ int line6_pcm_stop(struct snd_line6_pcm *line6pcm, int channels)
 	    __sync_fetch_and_and(&line6pcm->flags, ~channels);
 	unsigned long flags_new = flags_old & ~channels;
 
-	if (((flags_old & MASK_CAPTURE) != 0) &&
-	    ((flags_new & MASK_CAPTURE) == 0)) {
+	if (test_flags(flags_new, flags_old, MASK_CAPTURE)) {
 		line6_unlink_audio_in_urbs(line6pcm);
-		kfree(line6pcm->buffer_in);
-		line6pcm->buffer_in = NULL;
+
+		if (!(flags_old & MASK_PCM_ALSA_CAPTURE))
+			line6_free_capture_buffer(line6pcm);
 	}
 
-	if (((flags_old & MASK_PLAYBACK) != 0) &&
-	    ((flags_new & MASK_PLAYBACK) == 0)) {
+	if (test_flags(flags_new, flags_old, MASK_PLAYBACK)) {
 		line6_unlink_audio_out_urbs(line6pcm);
-		kfree(line6pcm->buffer_out);
-		line6pcm->buffer_out = NULL;
+
+		if (!(flags_old & MASK_PCM_ALSA_PLAYBACK))
+			line6_free_playback_buffer(line6pcm);
 	}
-#if LINE6_BACKUP_MONITOR_SIGNAL
-	kfree(line6pcm->prev_fbuf);
-#endif
 
 	return 0;
 }
@@ -403,10 +384,12 @@ int line6_init_pcm(struct usb_line6 *line6,
 	case LINE6_DEVID_PODXT:
 	case LINE6_DEVID_PODXTLIVE:
 	case LINE6_DEVID_PODXTPRO:
+	case LINE6_DEVID_PODHD300:
 		ep_read = 0x82;
 		ep_write = 0x01;
 		break;
 
+	case LINE6_DEVID_PODHD500:
 	case LINE6_DEVID_PODX3:
 	case LINE6_DEVID_PODX3LIVE:
 		ep_read = 0x86;
@@ -451,9 +434,14 @@ int line6_init_pcm(struct usb_line6 *line6,
 	line6pcm->line6 = line6;
 	line6pcm->ep_audio_read = ep_read;
 	line6pcm->ep_audio_write = ep_write;
-	line6pcm->max_packet_size = usb_maxpacket(line6->usbdev,
-						  usb_rcvintpipe(line6->usbdev,
-								 ep_read), 0);
+
+	/* Read and write buffers are sized identically, so choose minimum */
+	line6pcm->max_packet_size = min(
+			usb_maxpacket(line6->usbdev,
+				usb_rcvisocpipe(line6->usbdev, ep_read), 0),
+			usb_maxpacket(line6->usbdev,
+				usb_sndisocpipe(line6->usbdev, ep_write), 1));
+
 	line6pcm->properties = properties;
 	line6->line6pcm = line6pcm;
 
@@ -508,6 +496,23 @@ int snd_line6_prepare(struct snd_pcm_substream *substream)
 {
 	struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream);
 
+	switch (substream->stream) {
+	case SNDRV_PCM_STREAM_PLAYBACK:
+		if ((line6pcm->flags & MASK_PLAYBACK) == 0)
+			line6_unlink_wait_clear_audio_out_urbs(line6pcm);
+
+		break;
+
+	case SNDRV_PCM_STREAM_CAPTURE:
+		if ((line6pcm->flags & MASK_CAPTURE) == 0)
+			line6_unlink_wait_clear_audio_in_urbs(line6pcm);
+
+		break;
+
+	default:
+		MISSING_CASE;
+	}
+
 	if (!test_and_set_bit(BIT_PREPARED, &line6pcm->flags)) {
 		line6pcm->count_out = 0;
 		line6pcm->pos_out = 0;
diff --git a/drivers/staging/line6/pcm.h b/drivers/staging/line6/pcm.h
index 77055b3724ad..55d8297dd3d9 100644
--- a/drivers/staging/line6/pcm.h
+++ b/drivers/staging/line6/pcm.h
@@ -39,9 +39,6 @@
 #define LINE6_IMPULSE_DEFAULT_PERIOD 100
 #endif
 
-#define LINE6_BACKUP_MONITOR_SIGNAL 0
-#define LINE6_REUSE_DMA_AREA_FOR_PLAYBACK 0
-
 /*
 	Get substream from Line6 PCM data structure
 */
@@ -149,11 +146,6 @@ struct snd_line6_pcm {
 	unsigned char *buffer_in;
 
 	/**
-		 Temporary buffer index for playback.
-	*/
-	int index_out;
-
-	/**
 		 Previously captured frame (for software monitoring).
 	*/
 	unsigned char *prev_fbuf;
diff --git a/drivers/staging/line6/playback.c b/drivers/staging/line6/playback.c
index 10c543836583..4152db2328b7 100644
--- a/drivers/staging/line6/playback.c
+++ b/drivers/staging/line6/playback.c
@@ -9,6 +9,7 @@
  *
  */
 
+#include <linux/slab.h>
 #include <sound/core.h>
 #include <sound/pcm.h>
 #include <sound/pcm_params.h>
@@ -191,13 +192,10 @@ static int submit_audio_out_urb(struct snd_line6_pcm *line6pcm)
 	urb_frames = urb_size / bytes_per_frame;
 	urb_out->transfer_buffer =
 	    line6pcm->buffer_out +
-	    line6pcm->max_packet_size * line6pcm->index_out;
+	    index * LINE6_ISO_PACKETS * line6pcm->max_packet_size;
 	urb_out->transfer_buffer_length = urb_size;
 	urb_out->context = line6pcm;
 
-	if (++line6pcm->index_out == LINE6_ISO_BUFFERS)
-		line6pcm->index_out = 0;
-
 	if (test_bit(BIT_PCM_ALSA_PLAYBACK, &line6pcm->flags) &&
 	    !test_bit(BIT_PAUSE_PLAYBACK, &line6pcm->flags)) {
 		struct snd_pcm_runtime *runtime =
@@ -222,18 +220,10 @@ static int submit_audio_out_urb(struct snd_line6_pcm *line6pcm)
 			} else
 				dev_err(line6pcm->line6->ifcdev, "driver bug: len = %d\n", len);	/* this is somewhat paranoid */
 		} else {
-#if LINE6_REUSE_DMA_AREA_FOR_PLAYBACK
-			/* set the buffer pointer */
-			urb_out->transfer_buffer =
-			    runtime->dma_area +
-			    line6pcm->pos_out * bytes_per_frame;
-#else
-			/* copy data */
 			memcpy(urb_out->transfer_buffer,
 			       runtime->dma_area +
 			       line6pcm->pos_out * bytes_per_frame,
 			       urb_out->transfer_buffer_length);
-#endif
 		}
 
 		line6pcm->pos_out += urb_frames;
@@ -361,6 +351,31 @@ void line6_unlink_wait_clear_audio_out_urbs(struct snd_line6_pcm *line6pcm)
 	wait_clear_audio_out_urbs(line6pcm);
 }
 
+int line6_alloc_playback_buffer(struct snd_line6_pcm *line6pcm)
+{
+	/* We may be invoked multiple times in a row so allocate once only */
+	if (line6pcm->buffer_out)
+		return 0;
+
+	line6pcm->buffer_out =
+		kmalloc(LINE6_ISO_BUFFERS * LINE6_ISO_PACKETS *
+			line6pcm->max_packet_size, GFP_KERNEL);
+
+	if (!line6pcm->buffer_out) {
+		dev_err(line6pcm->line6->ifcdev,
+			"cannot malloc playback buffer\n");
+		return -ENOMEM;
+	}
+
+	return 0;
+}
+
+void line6_free_playback_buffer(struct snd_line6_pcm *line6pcm)
+{
+	kfree(line6pcm->buffer_out);
+	line6pcm->buffer_out = NULL;
+}
+
 /*
 	Callback for completed playback URB.
 */
@@ -469,6 +484,13 @@ static int snd_line6_playback_hw_params(struct snd_pcm_substream *substream,
 	}
 	/* -- [FD] end */
 
+	if ((line6pcm->flags & MASK_PLAYBACK) == 0) {
+		ret = line6_alloc_playback_buffer(line6pcm);
+
+		if (ret < 0)
+			return ret;
+	}
+
 	ret = snd_pcm_lib_malloc_pages(substream,
 				       params_buffer_bytes(hw_params));
 	if (ret < 0)
@@ -481,6 +503,13 @@ static int snd_line6_playback_hw_params(struct snd_pcm_substream *substream,
 /* hw_free playback callback */
 static int snd_line6_playback_hw_free(struct snd_pcm_substream *substream)
 {
+	struct snd_line6_pcm *line6pcm = snd_pcm_substream_chip(substream);
+
+	if ((line6pcm->flags & MASK_PLAYBACK) == 0) {
+		line6_unlink_wait_clear_audio_out_urbs(line6pcm);
+		line6_free_playback_buffer(line6pcm);
+	}
+
 	return snd_pcm_lib_free_pages(substream);
 }
 
diff --git a/drivers/staging/line6/playback.h b/drivers/staging/line6/playback.h
index f2fc8c0526e3..02487ff24538 100644
--- a/drivers/staging/line6/playback.h
+++ b/drivers/staging/line6/playback.h
@@ -29,7 +29,9 @@
 
 extern struct snd_pcm_ops snd_line6_playback_ops;
 
+extern int line6_alloc_playback_buffer(struct snd_line6_pcm *line6pcm);
 extern int line6_create_audio_out_urbs(struct snd_line6_pcm *line6pcm);
+extern void line6_free_playback_buffer(struct snd_line6_pcm *line6pcm);
 extern int line6_submit_audio_out_all_urbs(struct snd_line6_pcm *line6pcm);
 extern void line6_unlink_audio_out_urbs(struct snd_line6_pcm *line6pcm);
 extern void line6_unlink_wait_clear_audio_out_urbs(struct snd_line6_pcm
diff --git a/drivers/staging/line6/pod.c b/drivers/staging/line6/pod.c
index d9b30212585c..4dadc571d961 100644
--- a/drivers/staging/line6/pod.c
+++ b/drivers/staging/line6/pod.c
@@ -1149,14 +1149,10 @@ static struct snd_kcontrol_new pod_control_monitor = {
 static void pod_destruct(struct usb_interface *interface)
 {
 	struct usb_line6_pod *pod = usb_get_intfdata(interface);
-	struct usb_line6 *line6;
 
 	if (pod == NULL)
 		return;
-	line6 = &pod->line6;
-	if (line6 == NULL)
-		return;
-	line6_cleanup_audio(line6);
+	line6_cleanup_audio(&pod->line6);
 
 	del_timer(&pod->startup_timer);
 	cancel_work_sync(&pod->startup_work);
diff --git a/drivers/staging/line6/podhd.c b/drivers/staging/line6/podhd.c
new file mode 100644
index 000000000000..7ef45437b4f2
--- /dev/null
+++ b/drivers/staging/line6/podhd.c
@@ -0,0 +1,154 @@
+/*
+ * Line6 Pod HD
+ *
+ * Copyright (C) 2011 Stefan Hajnoczi <stefanha@gmail.com>
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License as
+ *	published by the Free Software Foundation, version 2.
+ *
+ */
+
+#include <sound/core.h>
+#include <sound/pcm.h>
+
+#include "audio.h"
+#include "driver.h"
+#include "pcm.h"
+#include "podhd.h"
+
+#define PODHD_BYTES_PER_FRAME 6	/* 24bit audio (stereo) */
+
+static struct snd_ratden podhd_ratden = {
+	.num_min = 48000,
+	.num_max = 48000,
+	.num_step = 1,
+	.den = 1,
+};
+
+static struct line6_pcm_properties podhd_pcm_properties = {
+	.snd_line6_playback_hw = {
+				  .info = (SNDRV_PCM_INFO_MMAP |
+					   SNDRV_PCM_INFO_INTERLEAVED |
+					   SNDRV_PCM_INFO_BLOCK_TRANSFER |
+					   SNDRV_PCM_INFO_MMAP_VALID |
+					   SNDRV_PCM_INFO_PAUSE |
+#ifdef CONFIG_PM
+					   SNDRV_PCM_INFO_RESUME |
+#endif
+					   SNDRV_PCM_INFO_SYNC_START),
+				  .formats = SNDRV_PCM_FMTBIT_S24_3LE,
+				  .rates = SNDRV_PCM_RATE_48000,
+				  .rate_min = 48000,
+				  .rate_max = 48000,
+				  .channels_min = 2,
+				  .channels_max = 2,
+				  .buffer_bytes_max = 60000,
+				  .period_bytes_min = 64,
+				  .period_bytes_max = 8192,
+				  .periods_min = 1,
+				  .periods_max = 1024},
+	.snd_line6_capture_hw = {
+				 .info = (SNDRV_PCM_INFO_MMAP |
+					  SNDRV_PCM_INFO_INTERLEAVED |
+					  SNDRV_PCM_INFO_BLOCK_TRANSFER |
+					  SNDRV_PCM_INFO_MMAP_VALID |
+#ifdef CONFIG_PM
+					  SNDRV_PCM_INFO_RESUME |
+#endif
+					  SNDRV_PCM_INFO_SYNC_START),
+				 .formats = SNDRV_PCM_FMTBIT_S24_3LE,
+				 .rates = SNDRV_PCM_RATE_48000,
+				 .rate_min = 48000,
+				 .rate_max = 48000,
+				 .channels_min = 2,
+				 .channels_max = 2,
+				 .buffer_bytes_max = 60000,
+				 .period_bytes_min = 64,
+				 .period_bytes_max = 8192,
+				 .periods_min = 1,
+				 .periods_max = 1024},
+	.snd_line6_rates = {
+			    .nrats = 1,
+			    .rats = &podhd_ratden},
+	.bytes_per_frame = PODHD_BYTES_PER_FRAME
+};
+
+/*
+	POD HD destructor.
+*/
+static void podhd_destruct(struct usb_interface *interface)
+{
+	struct usb_line6_podhd *podhd = usb_get_intfdata(interface);
+
+	if (podhd == NULL)
+		return;
+	line6_cleanup_audio(&podhd->line6);
+}
+
+/*
+	Try to init POD HD device.
+*/
+static int podhd_try_init(struct usb_interface *interface,
+			  struct usb_line6_podhd *podhd)
+{
+	int err;
+	struct usb_line6 *line6 = &podhd->line6;
+
+	if ((interface == NULL) || (podhd == NULL))
+		return -ENODEV;
+
+	/* initialize audio system: */
+	err = line6_init_audio(line6);
+	if (err < 0)
+		return err;
+
+	/* initialize MIDI subsystem: */
+	err = line6_init_midi(line6);
+	if (err < 0)
+		return err;
+
+	/* initialize PCM subsystem: */
+	err = line6_init_pcm(line6, &podhd_pcm_properties);
+	if (err < 0)
+		return err;
+
+	/* register USB audio system: */
+	err = line6_register_audio(line6);
+	return err;
+}
+
+/*
+	Init POD HD device (and clean up in case of failure).
+*/
+int line6_podhd_init(struct usb_interface *interface,
+		     struct usb_line6_podhd *podhd)
+{
+	int err = podhd_try_init(interface, podhd);
+
+	if (err < 0)
+		podhd_destruct(interface);
+
+	return err;
+}
+
+/*
+	POD HD device disconnected.
+*/
+void line6_podhd_disconnect(struct usb_interface *interface)
+{
+	struct usb_line6_podhd *podhd;
+
+	if (interface == NULL)
+		return;
+	podhd = usb_get_intfdata(interface);
+
+	if (podhd != NULL) {
+		struct snd_line6_pcm *line6pcm = podhd->line6.line6pcm;
+
+		if (line6pcm != NULL)
+			line6_pcm_disconnect(line6pcm);
+	}
+
+	podhd_destruct(interface);
+}
diff --git a/drivers/staging/line6/podhd.h b/drivers/staging/line6/podhd.h
new file mode 100644
index 000000000000..652f74056bb9
--- /dev/null
+++ b/drivers/staging/line6/podhd.h
@@ -0,0 +1,30 @@
+/*
+ * Line6 Pod HD
+ *
+ * Copyright (C) 2011 Stefan Hajnoczi <stefanha@gmail.com>
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License as
+ *	published by the Free Software Foundation, version 2.
+ *
+ */
+
+#ifndef PODHD_H
+#define PODHD_H
+
+#include <linux/usb.h>
+
+#include "driver.h"
+
+struct usb_line6_podhd {
+	/**
+		Generic Line6 USB data.
+	*/
+	struct usb_line6 line6;
+};
+
+extern void line6_podhd_disconnect(struct usb_interface *interface);
+extern int line6_podhd_init(struct usb_interface *interface,
+			    struct usb_line6_podhd *podhd);
+
+#endif /* PODHD_H */
diff --git a/drivers/staging/line6/revision.h b/drivers/staging/line6/revision.h
index 350d0dfff8f8..b4eee2b73831 100644
--- a/drivers/staging/line6/revision.h
+++ b/drivers/staging/line6/revision.h
@@ -1,4 +1,4 @@
 #ifndef DRIVER_REVISION
 /* current subversion revision */
-#define DRIVER_REVISION " (revision 690)"
+#define DRIVER_REVISION " (904)"
 #endif
diff --git a/drivers/staging/line6/toneport.c b/drivers/staging/line6/toneport.c
index 879e6992bbc6..f31057830dbc 100644
--- a/drivers/staging/line6/toneport.c
+++ b/drivers/staging/line6/toneport.c
@@ -295,14 +295,10 @@ static struct snd_kcontrol_new toneport_control_source = {
 static void toneport_destruct(struct usb_interface *interface)
 {
 	struct usb_line6_toneport *toneport = usb_get_intfdata(interface);
-	struct usb_line6 *line6;
 
 	if (toneport == NULL)
 		return;
-	line6 = &toneport->line6;
-	if (line6 == NULL)
-		return;
-	line6_cleanup_audio(line6);
+	line6_cleanup_audio(&toneport->line6);
 }
 
 /*
diff --git a/drivers/staging/line6/usbdefs.h b/drivers/staging/line6/usbdefs.h
index c6dffe6bc1a5..aff9e5caea46 100644
--- a/drivers/staging/line6/usbdefs.h
+++ b/drivers/staging/line6/usbdefs.h
@@ -24,6 +24,8 @@
 #define LINE6_DEVID_BASSPODXTPRO  0x4252
 #define LINE6_DEVID_GUITARPORT    0x4750
 #define LINE6_DEVID_POCKETPOD     0x5051
+#define LINE6_DEVID_PODHD300      0x5057
+#define LINE6_DEVID_PODHD500      0x414D
 #define LINE6_DEVID_PODSTUDIO_GX  0x4153
 #define LINE6_DEVID_PODSTUDIO_UX1 0x4150
 #define LINE6_DEVID_PODSTUDIO_UX2 0x4151
@@ -37,48 +39,71 @@
 #define LINE6_DEVID_TONEPORT_UX2  0x4142
 #define LINE6_DEVID_VARIAX        0x534d
 
-#define LINE6_BIT_BASSPODXT       (1 <<  0)
-#define LINE6_BIT_BASSPODXTLIVE   (1 <<  1)
-#define LINE6_BIT_BASSPODXTPRO    (1 <<  2)
-#define LINE6_BIT_GUITARPORT      (1 <<  3)
-#define LINE6_BIT_POCKETPOD       (1 <<  4)
-#define LINE6_BIT_PODSTUDIO_GX    (1 <<  5)
-#define LINE6_BIT_PODSTUDIO_UX1   (1 <<  6)
-#define LINE6_BIT_PODSTUDIO_UX2   (1 <<  7)
-#define LINE6_BIT_PODX3           (1 <<  8)
-#define LINE6_BIT_PODX3LIVE       (1 <<  9)
-#define LINE6_BIT_PODXT           (1 << 10)
-#define LINE6_BIT_PODXTLIVE       (1 << 11)
-#define LINE6_BIT_PODXTPRO        (1 << 12)
-#define LINE6_BIT_TONEPORT_GX     (1 << 13)
-#define LINE6_BIT_TONEPORT_UX1    (1 << 14)
-#define LINE6_BIT_TONEPORT_UX2    (1 << 15)
-#define LINE6_BIT_VARIAX          (1 << 16)
+enum {
+	LINE6_ID_BASSPODXT,
+	LINE6_ID_BASSPODXTLIVE,
+	LINE6_ID_BASSPODXTPRO,
+	LINE6_ID_GUITARPORT,
+	LINE6_ID_POCKETPOD,
+	LINE6_ID_PODHD300,
+	LINE6_ID_PODHD500,
+	LINE6_ID_PODSTUDIO_GX,
+	LINE6_ID_PODSTUDIO_UX1,
+	LINE6_ID_PODSTUDIO_UX2,
+	LINE6_ID_PODX3,
+	LINE6_ID_PODX3LIVE,
+	LINE6_ID_PODXT,
+	LINE6_ID_PODXTLIVE,
+	LINE6_ID_PODXTPRO,
+	LINE6_ID_TONEPORT_GX,
+	LINE6_ID_TONEPORT_UX1,
+	LINE6_ID_TONEPORT_UX2,
+	LINE6_ID_VARIAX
+};
 
-#define LINE6_BITS_PRO		(LINE6_BIT_BASSPODXTPRO | \
-				 LINE6_BIT_PODXTPRO)
-#define LINE6_BITS_LIVE		(LINE6_BIT_BASSPODXTLIVE | \
-				 LINE6_BIT_PODXTLIVE | \
-				 LINE6_BIT_PODX3LIVE)
-#define LINE6_BITS_PODXTALL	(LINE6_BIT_PODXT | \
-				 LINE6_BIT_PODXTLIVE | \
-				 LINE6_BIT_PODXTPRO)
-#define LINE6_BITS_BASSPODXTALL	(LINE6_BIT_BASSPODXT | \
-				 LINE6_BIT_BASSPODXTLIVE | \
-				 LINE6_BIT_BASSPODXTPRO)
+#define LINE6_BIT(x) LINE6_BIT_ ## x = 1 << LINE6_ID_ ## x
+
+enum {
+	LINE6_BIT(BASSPODXT),
+	LINE6_BIT(BASSPODXTLIVE),
+	LINE6_BIT(BASSPODXTPRO),
+	LINE6_BIT(GUITARPORT),
+	LINE6_BIT(POCKETPOD),
+	LINE6_BIT(PODHD300),
+	LINE6_BIT(PODHD500),
+	LINE6_BIT(PODSTUDIO_GX),
+	LINE6_BIT(PODSTUDIO_UX1),
+	LINE6_BIT(PODSTUDIO_UX2),
+	LINE6_BIT(PODX3),
+	LINE6_BIT(PODX3LIVE),
+	LINE6_BIT(PODXT),
+	LINE6_BIT(PODXTLIVE),
+	LINE6_BIT(PODXTPRO),
+	LINE6_BIT(TONEPORT_GX),
+	LINE6_BIT(TONEPORT_UX1),
+	LINE6_BIT(TONEPORT_UX2),
+	LINE6_BIT(VARIAX),
+
+	LINE6_BITS_PRO = LINE6_BIT_BASSPODXTPRO | LINE6_BIT_PODXTPRO,
+	LINE6_BITS_LIVE = LINE6_BIT_BASSPODXTLIVE | LINE6_BIT_PODXTLIVE | LINE6_BIT_PODX3LIVE,
+	LINE6_BITS_PODXTALL = LINE6_BIT_PODXT | LINE6_BIT_PODXTLIVE | LINE6_BIT_PODXTPRO,
+	LINE6_BITS_PODX3ALL = LINE6_BIT_PODX3 | LINE6_BIT_PODX3LIVE,
+	LINE6_BITS_PODHDALL = LINE6_BIT_PODHD300 | LINE6_BIT_PODHD500,
+	LINE6_BITS_BASSPODXTALL	= LINE6_BIT_BASSPODXT |	LINE6_BIT_BASSPODXTLIVE | LINE6_BIT_BASSPODXTPRO
+};
 
 /* device supports settings parameter via USB */
-#define LINE6_BIT_CONTROL	(1 << 0)
+#define LINE6_BIT_CONTROL (1 << 0)
 /* device supports PCM input/output via USB */
-#define LINE6_BIT_PCM		(1 << 1)
+#define LINE6_BIT_PCM (1 << 1)
 /* device support hardware monitoring */
-#define LINE6_BIT_HWMON		(1 << 2)
+#define LINE6_BIT_HWMON (1 << 2)
 
 #define LINE6_BIT_CONTROL_PCM_HWMON	(LINE6_BIT_CONTROL |	\
 					 LINE6_BIT_PCM |	\
 					 LINE6_BIT_HWMON)
 
-#define LINE6_FALLBACK_INTERVAL		10
-#define LINE6_FALLBACK_MAXPACKETSIZE	16
+#define LINE6_FALLBACK_INTERVAL 10
+#define LINE6_FALLBACK_MAXPACKETSIZE 16
 
 #endif
diff --git a/drivers/staging/line6/variax.c b/drivers/staging/line6/variax.c
index 81241cdf1be9..d36622228b2d 100644
--- a/drivers/staging/line6/variax.c
+++ b/drivers/staging/line6/variax.c
@@ -572,14 +572,10 @@ static DEVICE_ATTR(raw2, S_IWUSR, line6_nop_read, variax_set_raw2);
 static void variax_destruct(struct usb_interface *interface)
 {
 	struct usb_line6_variax *variax = usb_get_intfdata(interface);
-	struct usb_line6 *line6;
 
 	if (variax == NULL)
 		return;
-	line6 = &variax->line6;
-	if (line6 == NULL)
-		return;
-	line6_cleanup_audio(line6);
+	line6_cleanup_audio(&variax->line6);
 
 	del_timer(&variax->startup_timer1);
 	del_timer(&variax->startup_timer2);
diff --git a/drivers/staging/mei/init.c b/drivers/staging/mei/init.c
index 8bf34794489c..4ac3696883cb 100644
--- a/drivers/staging/mei/init.c
+++ b/drivers/staging/mei/init.c
@@ -38,7 +38,6 @@ void mei_io_list_init(struct mei_io_list *list)
 {
 	/* initialize our queue list */
 	INIT_LIST_HEAD(&list->mei_cb.cb_list);
-	list->status = 0;
 }
 
 /**
@@ -49,22 +48,15 @@ void mei_io_list_init(struct mei_io_list *list)
  */
 void mei_io_list_flush(struct mei_io_list *list, struct mei_cl *cl)
 {
-	struct mei_cl_cb *cb_pos = NULL;
-	struct mei_cl_cb *cb_next = NULL;
+	struct mei_cl_cb *pos;
+	struct mei_cl_cb *next;
 
-	if (list->status != 0)
-		return;
-
-	if (list_empty(&list->mei_cb.cb_list))
-		return;
-
-	list_for_each_entry_safe(cb_pos, cb_next,
-				 &list->mei_cb.cb_list, cb_list) {
-		if (cb_pos) {
+	list_for_each_entry_safe(pos, next, &list->mei_cb.cb_list, cb_list) {
+		if (pos->file_private) {
 			struct mei_cl *cl_tmp;
-			cl_tmp = (struct mei_cl *)cb_pos->file_private;
+			cl_tmp = (struct mei_cl *)pos->file_private;
 			if (mei_cl_cmp_id(cl, cl_tmp))
-				list_del(&cb_pos->cb_list);
+				list_del(&pos->cb_list);
 		}
 	}
 }
@@ -338,16 +330,10 @@ void mei_reset(struct mei_device *dev, int interrupts_enabled)
 		}
 	}
 	/* remove all waiting requests */
-	if (dev->write_list.status == 0 &&
-		!list_empty(&dev->write_list.mei_cb.cb_list)) {
-		list_for_each_entry_safe(cb_pos, cb_next,
-				&dev->write_list.mei_cb.cb_list, cb_list) {
-			if (cb_pos) {
-				list_del(&cb_pos->cb_list);
-				mei_free_cb_private(cb_pos);
-				cb_pos = NULL;
-			}
-		}
+	list_for_each_entry_safe(cb_pos, cb_next,
+			&dev->write_list.mei_cb.cb_list, cb_list) {
+		list_del(&cb_pos->cb_list);
+		mei_free_cb_private(cb_pos);
 	}
 }
 
@@ -380,8 +366,7 @@ void mei_host_start_message(struct mei_device *dev)
 	host_start_req->host_version.major_version = HBM_MAJOR_VERSION;
 	host_start_req->host_version.minor_version = HBM_MINOR_VERSION;
 	dev->recvd_msg = false;
-	if (!mei_write_message(dev, mei_hdr,
-				       (unsigned char *) (host_start_req),
+	if (!mei_write_message(dev, mei_hdr, (unsigned char *)host_start_req,
 				       mei_hdr->length)) {
 		dev_dbg(&dev->pdev->dev, "write send version message to FW fail.\n");
 		dev->mei_state = MEI_RESETING;
@@ -414,8 +399,7 @@ void mei_host_enum_clients_message(struct mei_device *dev)
 	host_enum_req = (struct hbm_host_enum_request *) &dev->wr_msg_buf[1];
 	memset(host_enum_req, 0, sizeof(struct hbm_host_enum_request));
 	host_enum_req->cmd.cmd = HOST_ENUM_REQ_CMD;
-	if (!mei_write_message(dev, mei_hdr,
-			       (unsigned char *) (host_enum_req),
+	if (!mei_write_message(dev, mei_hdr, (unsigned char *)host_enum_req,
 				mei_hdr->length)) {
 		dev->mei_state = MEI_RESETING;
 		dev_dbg(&dev->pdev->dev, "write send enumeration request message to FW fail.\n");
@@ -605,15 +589,10 @@ void mei_host_init_iamthif(struct mei_device *dev)
 		return;
 	}
 
-	/* Do not render the system unusable when iamthif_mtu is not equal to
-	the value received from ME.
-	Assign iamthif_mtu to the value received from ME in order to solve the
-	hardware macro incompatibility. */
+	/* Assign iamthif_mtu to the value received from ME  */
 
-	dev_dbg(&dev->pdev->dev, "[DEFAULT] IAMTHIF = %d\n", dev->iamthif_mtu);
 	dev->iamthif_mtu = dev->me_clients[i].props.max_msg_length;
-	dev_dbg(&dev->pdev->dev,
-			"IAMTHIF = %d\n",
+	dev_dbg(&dev->pdev->dev, "IAMTHIF_MTU = %d\n",
 			dev->me_clients[i].props.max_msg_length);
 
 	kfree(dev->iamthif_msg_buf);
diff --git a/drivers/staging/mei/interface.c b/drivers/staging/mei/interface.c
index a65dacf00213..eb5df7fc2269 100644
--- a/drivers/staging/mei/interface.c
+++ b/drivers/staging/mei/interface.c
@@ -128,9 +128,9 @@ int mei_count_empty_write_slots(struct mei_device *dev)
  * returns 1 if success, 0 - otherwise.
  */
 int mei_write_message(struct mei_device *dev,
-			     struct mei_msg_hdr *header,
-			     unsigned char *write_buffer,
-			     unsigned long write_length)
+		      struct mei_msg_hdr *header,
+		      unsigned char *write_buffer,
+		      unsigned long write_length)
 {
 	u32 temp_msg = 0;
 	unsigned long bytes_written = 0;
@@ -216,7 +216,7 @@ int mei_count_full_read_slots(struct mei_device *dev)
  * @buffer_length: message size will be read
  */
 void mei_read_slots(struct mei_device *dev,
-		     unsigned char *buffer, unsigned long buffer_length)
+		    unsigned char *buffer, unsigned long buffer_length)
 {
 	u32 i = 0;
 	unsigned char temp_buf[sizeof(u32)];
diff --git a/drivers/staging/mei/interface.h b/drivers/staging/mei/interface.h
index 7bd38ae2c233..aeae511419c7 100644
--- a/drivers/staging/mei/interface.h
+++ b/drivers/staging/mei/interface.h
@@ -52,6 +52,17 @@ int mei_wd_send(struct mei_device *dev);
 int mei_wd_stop(struct mei_device *dev, bool preserve);
 bool mei_wd_host_init(struct mei_device *dev);
 void mei_wd_set_start_timeout(struct mei_device *dev, u16 timeout);
+/*
+ * mei_watchdog_register  - Registering watchdog interface
+ *   once we got connection to the WD Client
+ * @dev - mei device
+ */
+void mei_watchdog_register(struct mei_device *dev);
+/*
+ * mei_watchdog_unregister  - Uegistering watchdog interface
+ * @dev - mei device
+ */
+void mei_watchdog_unregister(struct mei_device *dev);
 
 int mei_flow_ctrl_reduce(struct mei_device *dev, struct mei_cl *cl);
 
diff --git a/drivers/staging/mei/interrupt.c b/drivers/staging/mei/interrupt.c
index 882d106d54e5..3544fee34e48 100644
--- a/drivers/staging/mei/interrupt.c
+++ b/drivers/staging/mei/interrupt.c
@@ -198,8 +198,7 @@ static int mei_irq_thread_read_client_message(struct mei_io_list *complete_list,
 	unsigned char *buffer = NULL;
 
 	dev_dbg(&dev->pdev->dev, "start client msg\n");
-	if (!(dev->read_list.status == 0 &&
-	      !list_empty(&dev->read_list.mei_cb.cb_list)))
+	if (list_empty(&dev->read_list.mei_cb.cb_list))
 		goto quit;
 
 	list_for_each_entry_safe(cb_pos, cb_next,
@@ -210,9 +209,6 @@ static int mei_irq_thread_read_client_message(struct mei_io_list *complete_list,
 			buffer = (unsigned char *)
 				(cb_pos->response_buffer.data +
 				cb_pos->information);
-			BUG_ON(cb_pos->response_buffer.size <
-					mei_hdr->length +
-					cb_pos->information);
 
 			if (cb_pos->response_buffer.size <
 					mei_hdr->length + cb_pos->information) {
@@ -390,24 +386,10 @@ static void mei_client_connect_response(struct mei_device *dev,
 	/* if WD or iamthif client treat specially */
 
 	if (is_treat_specially_client(&(dev->wd_cl), rs)) {
-		dev_dbg(&dev->pdev->dev, "dev->wd_timeout =%d.\n",
-				dev->wd_timeout);
-
-		dev->wd_due_counter = (dev->wd_timeout) ? 1 : 0;
-
 		dev_dbg(&dev->pdev->dev, "successfully connected to WD client.\n");
+		mei_watchdog_register(dev);
 
-		/* Registering watchdog interface device once we got connection
-		   to the WD Client
-		*/
-		if (watchdog_register_device(&amt_wd_dev)) {
-			printk(KERN_ERR "mei: unable to register watchdog device.\n");
-			dev->wd_interface_reg = false;
-		} else {
-			dev_dbg(&dev->pdev->dev, "successfully register watchdog interface.\n");
-			dev->wd_interface_reg = true;
-		}
-
+		/* next step in the state maching */
 		mei_host_init_iamthif(dev);
 		return;
 	}
@@ -416,22 +398,20 @@ static void mei_client_connect_response(struct mei_device *dev,
 		dev->iamthif_state = MEI_IAMTHIF_IDLE;
 		return;
 	}
-	if (!dev->ctrl_rd_list.status &&
-	    !list_empty(&dev->ctrl_rd_list.mei_cb.cb_list)) {
-		list_for_each_entry_safe(cb_pos, cb_next,
-			&dev->ctrl_rd_list.mei_cb.cb_list, cb_list) {
-			cl = (struct mei_cl *)cb_pos->file_private;
-			if (!cl) {
+	list_for_each_entry_safe(cb_pos, cb_next,
+				&dev->ctrl_rd_list.mei_cb.cb_list, cb_list) {
+
+		cl = (struct mei_cl *)cb_pos->file_private;
+		if (!cl) {
+			list_del(&cb_pos->cb_list);
+			return;
+		}
+		if (MEI_IOCTL == cb_pos->major_file_operations) {
+			if (is_treat_specially_client(cl, rs)) {
 				list_del(&cb_pos->cb_list);
-				return;
-			}
-			if (MEI_IOCTL == cb_pos->major_file_operations) {
-				if (is_treat_specially_client(cl, rs)) {
-					list_del(&cb_pos->cb_list);
-					cl->status = 0;
-					cl->timer_count = 0;
-					break;
-				}
+				cl->status = 0;
+				cl->timer_count = 0;
+				break;
 			}
 		}
 	}
@@ -458,29 +438,26 @@ static void mei_client_disconnect_response(struct mei_device *dev,
 			rs->host_addr,
 			rs->status);
 
-	if (!dev->ctrl_rd_list.status &&
-	    !list_empty(&dev->ctrl_rd_list.mei_cb.cb_list)) {
-		list_for_each_entry_safe(cb_pos, cb_next,
-				&dev->ctrl_rd_list.mei_cb.cb_list, cb_list) {
-			cl = (struct mei_cl *)cb_pos->file_private;
+	list_for_each_entry_safe(cb_pos, cb_next,
+			&dev->ctrl_rd_list.mei_cb.cb_list, cb_list) {
+		cl = (struct mei_cl *)cb_pos->file_private;
 
-			if (!cl) {
-				list_del(&cb_pos->cb_list);
-				return;
-			}
+		if (!cl) {
+			list_del(&cb_pos->cb_list);
+			return;
+		}
 
-			dev_dbg(&dev->pdev->dev, "list_for_each_entry_safe in ctrl_rd_list.\n");
-			if (cl->host_client_id == rs->host_addr &&
-			    cl->me_client_id == rs->me_addr) {
+		dev_dbg(&dev->pdev->dev, "list_for_each_entry_safe in ctrl_rd_list.\n");
+		if (cl->host_client_id == rs->host_addr &&
+		    cl->me_client_id == rs->me_addr) {
 
-				list_del(&cb_pos->cb_list);
-				if (!rs->status)
-					cl->state = MEI_FILE_DISCONNECTED;
+			list_del(&cb_pos->cb_list);
+			if (!rs->status)
+				cl->state = MEI_FILE_DISCONNECTED;
 
-				cl->status = 0;
-				cl->timer_count = 0;
-				break;
-			}
+			cl->status = 0;
+			cl->timer_count = 0;
+			break;
 		}
 	}
 }
@@ -718,7 +695,7 @@ static void mei_irq_thread_read_bus_message(struct mei_device *dev,
 	case CLIENT_DISCONNECT_RES_CMD:
 		disconnect_res =
 			(struct hbm_client_connect_response *) mei_msg;
-		mei_client_disconnect_response(dev,	 disconnect_res);
+		mei_client_disconnect_response(dev, disconnect_res);
 		dev_dbg(&dev->pdev->dev, "client disconnect response message received.\n");
 		wake_up(&dev->wait_recvd_msg);
 		break;
@@ -736,7 +713,7 @@ static void mei_irq_thread_read_bus_message(struct mei_device *dev,
 			mei_reset(dev, 1);
 			return;
 		}
-	       if (dev->me_clients[dev->me_client_presentation_num]
+		if (dev->me_clients[dev->me_client_presentation_num]
 					.client_id == props_res->address) {
 
 			dev->me_clients[dev->me_client_presentation_num].props
@@ -1228,7 +1205,7 @@ static int mei_irq_thread_write_handler(struct mei_io_list *cmpl_list,
 {
 
 	struct mei_cl *cl;
-	struct mei_cl_cb *cb_pos = NULL, *cb_next = NULL;
+	struct mei_cl_cb *pos = NULL, *next = NULL;
 	struct mei_io_list *list;
 	int ret;
 
@@ -1241,36 +1218,31 @@ static int mei_irq_thread_write_handler(struct mei_io_list *cmpl_list,
 	dev_dbg(&dev->pdev->dev, "complete all waiting for write cb.\n");
 
 	list = &dev->write_waiting_list;
-	if (!list->status && !list_empty(&list->mei_cb.cb_list)) {
-		list_for_each_entry_safe(cb_pos, cb_next,
-				&list->mei_cb.cb_list, cb_list) {
-			cl = (struct mei_cl *)cb_pos->file_private;
-			if (cl) {
-				cl->status = 0;
-				list_del(&cb_pos->cb_list);
-				if (MEI_WRITING == cl->writing_state &&
-				   (cb_pos->major_file_operations ==
-						MEI_WRITE) &&
-				   (cl != &dev->iamthif_cl)) {
-					dev_dbg(&dev->pdev->dev,
-						"MEI WRITE COMPLETE\n");
-					cl->writing_state =
-							MEI_WRITE_COMPLETE;
-					list_add_tail(&cb_pos->cb_list,
-						&cmpl_list->mei_cb.cb_list);
-				}
-				if (cl == &dev->iamthif_cl) {
-					dev_dbg(&dev->pdev->dev, "check iamthif flow control.\n");
-					if (dev->iamthif_flow_control_pending) {
-						ret =
-						_mei_irq_thread_iamthif_read(
-								dev, slots);
-						if (ret)
-							return ret;
-					}
-				}
+	list_for_each_entry_safe(pos, next,
+			&list->mei_cb.cb_list, cb_list) {
+		cl = (struct mei_cl *)pos->file_private;
+		if (cl == NULL)
+			continue;
+
+		cl->status = 0;
+		list_del(&pos->cb_list);
+		if (MEI_WRITING == cl->writing_state &&
+		   (pos->major_file_operations == MEI_WRITE) &&
+		   (cl != &dev->iamthif_cl)) {
+			dev_dbg(&dev->pdev->dev,
+				"MEI WRITE COMPLETE\n");
+			cl->writing_state = MEI_WRITE_COMPLETE;
+			list_add_tail(&pos->cb_list,
+				&cmpl_list->mei_cb.cb_list);
+		}
+		if (cl == &dev->iamthif_cl) {
+			dev_dbg(&dev->pdev->dev, "check iamthif flow control.\n");
+			if (dev->iamthif_flow_control_pending) {
+				ret = _mei_irq_thread_iamthif_read(
+						dev, slots);
+				if (ret)
+					return ret;
 			}
-
 		}
 	}
 
@@ -1317,101 +1289,88 @@ static int mei_irq_thread_write_handler(struct mei_io_list *cmpl_list,
 		return ~ENODEV;
 
 	/* complete control write list CB */
-	if (!dev->ctrl_wr_list.status) {
-		/* complete control write list CB */
-		dev_dbg(&dev->pdev->dev, "complete control write list cb.\n");
-		list_for_each_entry_safe(cb_pos, cb_next,
+	dev_dbg(&dev->pdev->dev, "complete control write list cb.\n");
+	list_for_each_entry_safe(pos, next,
 				&dev->ctrl_wr_list.mei_cb.cb_list, cb_list) {
-			cl = (struct mei_cl *)
-				cb_pos->file_private;
-			if (!cl) {
-				list_del(&cb_pos->cb_list);
-				return -ENODEV;
-			}
-			switch (cb_pos->major_file_operations) {
-			case MEI_CLOSE:
-				/* send disconnect message */
-				ret = _mei_irq_thread_close(dev, slots,
-						     cb_pos, cl, cmpl_list);
-				if (ret)
-					return ret;
-
-				break;
-			case MEI_READ:
-				/* send flow control message */
-				ret = _mei_irq_thread_read(dev, slots,
-						    cb_pos, cl, cmpl_list);
-				if (ret)
-					return ret;
+		cl = (struct mei_cl *) pos->file_private;
+		if (!cl) {
+			list_del(&pos->cb_list);
+			return -ENODEV;
+		}
+		switch (pos->major_file_operations) {
+		case MEI_CLOSE:
+			/* send disconnect message */
+			ret = _mei_irq_thread_close(dev, slots, pos, cl, cmpl_list);
+			if (ret)
+				return ret;
 
-				break;
-			case MEI_IOCTL:
-				/* connect message */
-				if (!mei_other_client_is_connecting(dev,
-						cl))
-					continue;
-				ret = _mei_irq_thread_ioctl(dev, slots,
-						     cb_pos, cl, cmpl_list);
-				if (ret)
-					return ret;
+			break;
+		case MEI_READ:
+			/* send flow control message */
+			ret = _mei_irq_thread_read(dev, slots, pos, cl, cmpl_list);
+			if (ret)
+				return ret;
 
-				break;
+			break;
+		case MEI_IOCTL:
+			/* connect message */
+			if (mei_other_client_is_connecting(dev, cl))
+				continue;
+			ret = _mei_irq_thread_ioctl(dev, slots, pos, cl, cmpl_list);
+			if (ret)
+				return ret;
 
-			default:
-				BUG();
-			}
+			break;
 
+		default:
+			BUG();
 		}
+
 	}
 	/* complete  write list CB */
-	if (!dev->write_list.status &&
-	    !list_empty(&dev->write_list.mei_cb.cb_list)) {
-		dev_dbg(&dev->pdev->dev, "complete write list cb.\n");
-		list_for_each_entry_safe(cb_pos, cb_next,
-				&dev->write_list.mei_cb.cb_list, cb_list) {
-			cl = (struct mei_cl *)cb_pos->file_private;
-
-			if (cl) {
-				if (cl != &dev->iamthif_cl) {
-					if (!mei_flow_ctrl_creds(dev,
-						cl)) {
-						dev_dbg(&dev->pdev->dev,
-							"No flow control"
-						    " credentials for client"
-						    " %d, not sending.\n",
-						    cl->host_client_id);
-						continue;
-					}
-					ret = _mei_irq_thread_cmpl(dev, slots,
-							    cb_pos,
-							    cl, cmpl_list);
-					if (ret)
-						return ret;
-
-				} else if (cl == &dev->iamthif_cl) {
-					/* IAMTHIF IOCTL */
-					dev_dbg(&dev->pdev->dev, "complete amthi write cb.\n");
-					if (!mei_flow_ctrl_creds(dev,
-							cl)) {
-						dev_dbg(&dev->pdev->dev,
-							"No flow control"
-						    " credentials for amthi"
-						    " client %d.\n",
-						    cl->host_client_id);
-						continue;
-					}
-					ret = _mei_irq_thread_cmpl_iamthif(dev,
-								slots,
-								cb_pos,
-								cl,
-								cmpl_list);
-					if (ret)
-						return ret;
-
-				}
+	dev_dbg(&dev->pdev->dev, "complete write list cb.\n");
+	list_for_each_entry_safe(pos, next,
+			&dev->write_list.mei_cb.cb_list, cb_list) {
+		cl = (struct mei_cl *)pos->file_private;
+		if (cl == NULL)
+			continue;
+
+		if (cl != &dev->iamthif_cl) {
+			if (!mei_flow_ctrl_creds(dev, cl)) {
+				dev_dbg(&dev->pdev->dev,
+					"No flow control"
+				    " credentials for client"
+				    " %d, not sending.\n",
+				    cl->host_client_id);
+				continue;
+			}
+			ret = _mei_irq_thread_cmpl(dev, slots,
+					    pos,
+					    cl, cmpl_list);
+			if (ret)
+				return ret;
+
+		} else if (cl == &dev->iamthif_cl) {
+			/* IAMTHIF IOCTL */
+			dev_dbg(&dev->pdev->dev, "complete amthi write cb.\n");
+			if (!mei_flow_ctrl_creds(dev, cl)) {
+				dev_dbg(&dev->pdev->dev,
+					"No flow control"
+				    " credentials for amthi"
+				    " client %d.\n",
+				    cl->host_client_id);
+				continue;
 			}
+			ret = _mei_irq_thread_cmpl_iamthif(dev,
+						slots,
+						pos,
+						cl,
+						cmpl_list);
+			if (ret)
+				return ret;
 
 		}
+
 	}
 	return 0;
 }
@@ -1502,18 +1461,13 @@ void mei_timer(struct work_struct *work)
 			amthi_complete_list = &dev->amthi_read_complete_list.
 					mei_cb.cb_list;
 
-			if (!list_empty(amthi_complete_list)) {
-
-				list_for_each_entry_safe(cb_pos, cb_next,
-							amthi_complete_list,
-							cb_list) {
+			list_for_each_entry_safe(cb_pos, cb_next, amthi_complete_list, cb_list) {
 
-					cl_pos = cb_pos->file_object->private_data;
+				cl_pos = cb_pos->file_object->private_data;
 
-					/* Finding the AMTHI entry. */
-					if (cl_pos ==	&dev->iamthif_cl)
-						list_del(&cb_pos->cb_list);
-				}
+				/* Finding the AMTHI entry. */
+				if (cl_pos == &dev->iamthif_cl)
+					list_del(&cb_pos->cb_list);
 			}
 			if (dev->iamthif_current_cb)
 				mei_free_cb_private(dev->iamthif_current_cb);
@@ -1527,8 +1481,8 @@ void mei_timer(struct work_struct *work)
 		}
 	}
 out:
-	 schedule_delayed_work(&dev->timer_work, 2 * HZ);
-	 mutex_unlock(&dev->device_lock);
+	schedule_delayed_work(&dev->timer_work, 2 * HZ);
+	mutex_unlock(&dev->device_lock);
 }
 
 /**
@@ -1624,7 +1578,7 @@ end:
 		wake_up_interruptible(&dev->wait_recvd_msg);
 		bus_message_received = false;
 	}
-	if (complete_list.status || list_empty(&complete_list.mei_cb.cb_list))
+	if (list_empty(&complete_list.mei_cb.cb_list))
 		return IRQ_HANDLED;
 
 
diff --git a/drivers/staging/mei/iorw.c b/drivers/staging/mei/iorw.c
index 8a61d1266515..0752ead4269a 100644
--- a/drivers/staging/mei/iorw.c
+++ b/drivers/staging/mei/iorw.c
@@ -228,18 +228,15 @@ struct mei_cl_cb *find_amthi_read_list_entry(
 		struct file *file)
 {
 	struct mei_cl *cl_temp;
-	struct mei_cl_cb *cb_pos = NULL;
-	struct mei_cl_cb *cb_next = NULL;
-
-	if (!dev->amthi_read_complete_list.status &&
-	    !list_empty(&dev->amthi_read_complete_list.mei_cb.cb_list)) {
-		list_for_each_entry_safe(cb_pos, cb_next,
-		    &dev->amthi_read_complete_list.mei_cb.cb_list, cb_list) {
-			cl_temp = (struct mei_cl *)cb_pos->file_private;
-			if (cl_temp && cl_temp == &dev->iamthif_cl &&
-				cb_pos->file_object == file)
-				return cb_pos;
-		}
+	struct mei_cl_cb *pos = NULL;
+	struct mei_cl_cb *next = NULL;
+
+	list_for_each_entry_safe(pos, next,
+	    &dev->amthi_read_complete_list.mei_cb.cb_list, cb_list) {
+		cl_temp = (struct mei_cl *)pos->file_private;
+		if (cl_temp && cl_temp == &dev->iamthif_cl &&
+			pos->file_object == file)
+			return pos;
 	}
 	return NULL;
 }
@@ -262,7 +259,7 @@ struct mei_cl_cb *find_amthi_read_list_entry(
  *  negative on failure.
  */
 int amthi_read(struct mei_device *dev, struct file *file,
-	      char __user *ubuf, size_t length, loff_t *offset)
+	       char __user *ubuf, size_t length, loff_t *offset)
 {
 	int rets;
 	int wait_ret;
@@ -334,8 +331,7 @@ int amthi_read(struct mei_device *dev, struct file *file,
 		}
 	}
 	/* if the whole message will fit remove it from the list */
-	if (cb->information >= *offset &&
-	    length >= (cb->information - *offset))
+	if (cb->information >= *offset && length >= (cb->information - *offset))
 		list_del(&cb->cb_list);
 	else if (cb->information > 0 && cb->information <= *offset) {
 		/* end of the message has been reached */
@@ -356,9 +352,7 @@ int amthi_read(struct mei_device *dev, struct file *file,
 	 * the information may be longer */
 	length = min_t(size_t, length, (cb->information - *offset));
 
-	if (copy_to_user(ubuf,
-			 cb->response_buffer.data + *offset,
-			 length))
+	if (copy_to_user(ubuf, cb->response_buffer.data + *offset, length))
 		rets = -EFAULT;
 	else {
 		rets = length;
@@ -427,7 +421,7 @@ int mei_start_read(struct mei_device *dev, struct mei_cl *cl)
 
 	cb->response_buffer.size = dev->me_clients[i].props.max_msg_length;
 	cb->response_buffer.data =
-	    kmalloc(cb->response_buffer.size, GFP_KERNEL);
+			kmalloc(cb->response_buffer.size, GFP_KERNEL);
 	if (!cb->response_buffer.data) {
 		rets = -ENOMEM;
 		goto unlock;
@@ -448,8 +442,7 @@ int mei_start_read(struct mei_device *dev, struct mei_cl *cl)
 				      &dev->read_list.mei_cb.cb_list);
 		}
 	} else {
-		list_add_tail(&cb->cb_list,
-			      &dev->ctrl_wr_list.mei_cb.cb_list);
+		list_add_tail(&cb->cb_list, &dev->ctrl_wr_list.mei_cb.cb_list);
 	}
 	return rets;
 unlock:
@@ -482,7 +475,7 @@ int amthi_write(struct mei_device *dev, struct mei_cl_cb *cb)
 	dev->iamthif_ioctl = true;
 	dev->iamthif_msg_buf_size = cb->request_buffer.size;
 	memcpy(dev->iamthif_msg_buf, cb->request_buffer.data,
-	    cb->request_buffer.size);
+	       cb->request_buffer.size);
 
 	ret = mei_flow_ctrl_creds(dev, &dev->iamthif_cl);
 	if (ret < 0)
@@ -534,8 +527,7 @@ int amthi_write(struct mei_device *dev, struct mei_cl_cb *cb)
 
 		dev_dbg(&dev->pdev->dev, "No flow control credentials, "
 				"so add iamthif cb to write list.\n");
-		list_add_tail(&cb->cb_list,
-			      &dev->write_list.mei_cb.cb_list);
+		list_add_tail(&cb->cb_list, &dev->write_list.mei_cb.cb_list);
 	}
 	return 0;
 }
@@ -550,8 +542,8 @@ int amthi_write(struct mei_device *dev, struct mei_cl_cb *cb)
 void mei_run_next_iamthif_cmd(struct mei_device *dev)
 {
 	struct mei_cl *cl_tmp;
-	struct mei_cl_cb *cb_pos = NULL;
-	struct mei_cl_cb *cb_next = NULL;
+	struct mei_cl_cb *pos = NULL;
+	struct mei_cl_cb *next = NULL;
 	int status;
 
 	if (!dev)
@@ -565,25 +557,22 @@ void mei_run_next_iamthif_cmd(struct mei_device *dev)
 	dev->iamthif_timer = 0;
 	dev->iamthif_file_object = NULL;
 
-	if (dev->amthi_cmd_list.status == 0 &&
-	    !list_empty(&dev->amthi_cmd_list.mei_cb.cb_list)) {
-		dev_dbg(&dev->pdev->dev, "complete amthi cmd_list cb.\n");
-
-		list_for_each_entry_safe(cb_pos, cb_next,
-		    &dev->amthi_cmd_list.mei_cb.cb_list, cb_list) {
-			list_del(&cb_pos->cb_list);
-			cl_tmp = (struct mei_cl *)cb_pos->file_private;
-
-			if (cl_tmp && cl_tmp == &dev->iamthif_cl) {
-				status = amthi_write(dev, cb_pos);
-				if (status) {
-					dev_dbg(&dev->pdev->dev,
-						"amthi write failed status = %d\n",
-							status);
-					return;
-				}
-				break;
+	dev_dbg(&dev->pdev->dev, "complete amthi cmd_list cb.\n");
+
+	list_for_each_entry_safe(pos, next,
+			&dev->amthi_cmd_list.mei_cb.cb_list, cb_list) {
+		list_del(&pos->cb_list);
+		cl_tmp = (struct mei_cl *)pos->file_private;
+
+		if (cl_tmp && cl_tmp == &dev->iamthif_cl) {
+			status = amthi_write(dev, pos);
+			if (status) {
+				dev_dbg(&dev->pdev->dev,
+					"amthi write failed status = %d\n",
+						status);
+				return;
 			}
+			break;
 		}
 	}
 }
diff --git a/drivers/staging/mei/main.c b/drivers/staging/mei/main.c
index eb05c36f45d4..1e1a9f996e7c 100644
--- a/drivers/staging/mei/main.c
+++ b/drivers/staging/mei/main.c
@@ -33,6 +33,7 @@
 #include <linux/compat.h>
 #include <linux/jiffies.h>
 #include <linux/interrupt.h>
+#include <linux/miscdevice.h>
 
 #include "mei_dev.h"
 #include "mei.h"
@@ -51,18 +52,10 @@ static char mei_driver_name[] = MEI_DRIVER_NAME;
 static const char mei_driver_string[] = "Intel(R) Management Engine Interface";
 static const char mei_driver_version[] = MEI_DRIVER_VERSION;
 
-/* mei char device for registration */
-static struct cdev mei_cdev;
-
-/* major number for device */
-static int mei_major;
 /* The device pointer */
 /* Currently this driver works as long as there is only a single AMT device. */
 struct pci_dev *mei_device;
 
-static struct class *mei_class;
-
-
 /* mei_pci_tbl - PCI Device ID Table */
 static DEFINE_PCI_DEVICE_TABLE(mei_pci_tbl) = {
 	{PCI_DEVICE(PCI_VENDOR_ID_INTEL, MEI_DEV_ID_82946GZ)},
@@ -105,173 +98,6 @@ MODULE_DEVICE_TABLE(pci, mei_pci_tbl);
 
 static DEFINE_MUTEX(mei_mutex);
 
-/**
- * mei_probe - Device Initialization Routine
- *
- * @pdev: PCI device structure
- * @ent: entry in kcs_pci_tbl
- *
- * returns 0 on success, <0 on failure.
- */
-static int __devinit mei_probe(struct pci_dev *pdev,
-				const struct pci_device_id *ent)
-{
-	struct mei_device *dev;
-	int err;
-
-	mutex_lock(&mei_mutex);
-	if (mei_device) {
-		err = -EEXIST;
-		goto end;
-	}
-	/* enable pci dev */
-	err = pci_enable_device(pdev);
-	if (err) {
-		printk(KERN_ERR "mei: Failed to enable pci device.\n");
-		goto end;
-	}
-	/* set PCI host mastering  */
-	pci_set_master(pdev);
-	/* pci request regions for mei driver */
-	err = pci_request_regions(pdev, mei_driver_name);
-	if (err) {
-		printk(KERN_ERR "mei: Failed to get pci regions.\n");
-		goto disable_device;
-	}
-	/* allocates and initializes the mei dev structure */
-	dev = mei_device_init(pdev);
-	if (!dev) {
-		err = -ENOMEM;
-		goto release_regions;
-	}
-	/* mapping  IO device memory */
-	dev->mem_addr = pci_iomap(pdev, 0, 0);
-	if (!dev->mem_addr) {
-		printk(KERN_ERR "mei: mapping I/O device memory failure.\n");
-		err = -ENOMEM;
-		goto free_device;
-	}
-	pci_enable_msi(pdev);
-
-	 /* request and enable interrupt */
-	if (pci_dev_msi_enabled(pdev))
-		err = request_threaded_irq(pdev->irq,
-			NULL,
-			mei_interrupt_thread_handler,
-			0, mei_driver_name, dev);
-	else
-		err = request_threaded_irq(pdev->irq,
-			mei_interrupt_quick_handler,
-			mei_interrupt_thread_handler,
-			IRQF_SHARED, mei_driver_name, dev);
-
-	if (err) {
-		printk(KERN_ERR "mei: request_threaded_irq failure. irq = %d\n",
-		       pdev->irq);
-		goto unmap_memory;
-	}
-	INIT_DELAYED_WORK(&dev->timer_work, mei_timer);
-	if (mei_hw_init(dev)) {
-		printk(KERN_ERR "mei: Init hw failure.\n");
-		err = -ENODEV;
-		goto release_irq;
-	}
-	mei_device = pdev;
-	pci_set_drvdata(pdev, dev);
-	schedule_delayed_work(&dev->timer_work, HZ);
-
-	mutex_unlock(&mei_mutex);
-
-	pr_debug("mei: Driver initialization successful.\n");
-
-	return 0;
-
-release_irq:
-	/* disable interrupts */
-	dev->host_hw_state = mei_hcsr_read(dev);
-	mei_disable_interrupts(dev);
-	flush_scheduled_work();
-	free_irq(pdev->irq, dev);
-	pci_disable_msi(pdev);
-unmap_memory:
-	pci_iounmap(pdev, dev->mem_addr);
-free_device:
-	kfree(dev);
-release_regions:
-	pci_release_regions(pdev);
-disable_device:
-	pci_disable_device(pdev);
-end:
-	mutex_unlock(&mei_mutex);
-	printk(KERN_ERR "mei: Driver initialization failed.\n");
-	return err;
-}
-
-/**
- * mei_remove - Device Removal Routine
- *
- * @pdev: PCI device structure
- *
- * mei_remove is called by the PCI subsystem to alert the driver
- * that it should release a PCI device.
- */
-static void __devexit mei_remove(struct pci_dev *pdev)
-{
-	struct mei_device *dev;
-
-	if (mei_device != pdev)
-		return;
-
-	dev = pci_get_drvdata(pdev);
-	if (!dev)
-		return;
-
-	mutex_lock(&dev->device_lock);
-
-	mei_wd_stop(dev, false);
-
-	mei_device = NULL;
-
-	if (dev->iamthif_cl.state == MEI_FILE_CONNECTED) {
-		dev->iamthif_cl.state = MEI_FILE_DISCONNECTING;
-		mei_disconnect_host_client(dev, &dev->iamthif_cl);
-	}
-	if (dev->wd_cl.state == MEI_FILE_CONNECTED) {
-		dev->wd_cl.state = MEI_FILE_DISCONNECTING;
-		mei_disconnect_host_client(dev, &dev->wd_cl);
-	}
-
-	/* Unregistering watchdog device */
-	if (dev->wd_interface_reg)
-		watchdog_unregister_device(&amt_wd_dev);
-
-	/* remove entry if already in list */
-	dev_dbg(&pdev->dev, "list del iamthif and wd file list.\n");
-	mei_remove_client_from_file_list(dev, dev->wd_cl.host_client_id);
-	mei_remove_client_from_file_list(dev, dev->iamthif_cl.host_client_id);
-
-	dev->iamthif_current_cb = NULL;
-	dev->me_clients_num = 0;
-
-	mutex_unlock(&dev->device_lock);
-
-	flush_scheduled_work();
-
-	/* disable interrupts */
-	mei_disable_interrupts(dev);
-
-	free_irq(pdev->irq, dev);
-	pci_disable_msi(pdev);
-	pci_set_drvdata(pdev, NULL);
-
-	if (dev->mem_addr)
-		pci_iounmap(pdev, dev->mem_addr);
-
-	kfree(dev);
-
-	pci_release_regions(pdev);
-	pci_disable_device(pdev);
-}
 
 /**
  * mei_clear_list - removes all callbacks associated with file
@@ -372,21 +198,17 @@ static struct mei_cl_cb *find_read_list_entry(
 		struct mei_device *dev,
 		struct mei_cl *cl)
 {
-	struct mei_cl_cb *cb_pos = NULL;
-	struct mei_cl_cb *cb_next = NULL;
-
-	if (!dev->read_list.status &&
-	    !list_empty(&dev->read_list.mei_cb.cb_list)) {
+	struct mei_cl_cb *pos = NULL;
+	struct mei_cl_cb *next = NULL;
 
-		dev_dbg(&dev->pdev->dev, "remove read_list CB\n");
-		list_for_each_entry_safe(cb_pos, cb_next,
-				&dev->read_list.mei_cb.cb_list, cb_list) {
-			struct mei_cl *cl_temp;
-			cl_temp = (struct mei_cl *)cb_pos->file_private;
+	dev_dbg(&dev->pdev->dev, "remove read_list CB\n");
+	list_for_each_entry_safe(pos, next,
+			&dev->read_list.mei_cb.cb_list, cb_list) {
+		struct mei_cl *cl_temp;
+		cl_temp = (struct mei_cl *)pos->file_private;
 
-			if (mei_cl_cmp_id(cl, cl_temp))
-				return cb_pos;
-		}
+		if (mei_cl_cmp_id(cl, cl_temp))
+			return pos;
 	}
 	return NULL;
 }
@@ -402,15 +224,16 @@ static struct mei_cl_cb *find_read_list_entry(
 static int mei_open(struct inode *inode, struct file *file)
 {
 	struct mei_cl *cl;
-	int if_num = iminor(inode), err;
 	struct mei_device *dev;
+	unsigned long cl_id;
+	int err;
 
 	err = -ENODEV;
 	if (!mei_device)
 		goto out;
 
 	dev = pci_get_drvdata(mei_device);
-	if (if_num != MEI_MINOR_NUMBER || !dev)
+	if (!dev)
 		goto out;
 
 	mutex_lock(&dev->device_lock);
@@ -429,14 +252,16 @@ static int mei_open(struct inode *inode, struct file *file)
 	if (dev->open_handle_count >= MEI_MAX_OPEN_HANDLE_COUNT)
 		goto out_unlock;
 
-	cl->host_client_id = find_first_zero_bit(dev->host_clients_map,
-							MEI_CLIENTS_MAX);
-	if (cl->host_client_id > MEI_CLIENTS_MAX)
+	cl_id = find_first_zero_bit(dev->host_clients_map, MEI_CLIENTS_MAX);
+	if (cl_id >= MEI_CLIENTS_MAX)
 		goto out_unlock;
 
+	cl->host_client_id  = cl_id;
+
 	dev_dbg(&dev->pdev->dev, "client_id = %d\n", cl->host_client_id);
 
 	dev->open_handle_count++;
+
 	list_add_tail(&cl->link, &dev->file_list);
 
 	set_bit(cl->host_client_id, dev->host_clients_map);
@@ -446,7 +271,7 @@ static int mei_open(struct inode *inode, struct file *file)
 	file->private_data = cl;
 	mutex_unlock(&dev->device_lock);
 
-	return 0;
+	return nonseekable_open(inode, file);
 
 out_unlock:
 	mutex_unlock(&dev->device_lock);
@@ -492,8 +317,7 @@ static int mei_release(struct inode *inode, struct file *file)
 		    cl->me_client_id);
 
 		if (dev->open_handle_count > 0) {
-			clear_bit(cl->host_client_id,
-				  dev->host_clients_map);
+			clear_bit(cl->host_client_id, dev->host_clients_map);
 			dev->open_handle_count--;
 		}
 		mei_remove_client_from_file_list(dev, cl->host_client_id);
@@ -554,7 +378,7 @@ static int mei_release(struct inode *inode, struct file *file)
  * returns >=0 data length on success , <0 on error
  */
 static ssize_t mei_read(struct file *file, char __user *ubuf,
-			 size_t length, loff_t *offset)
+			size_t length, loff_t *offset)
 {
 	struct mei_cl *cl = file->private_data;
 	struct mei_cl_cb *cb_pos = NULL;
@@ -673,9 +497,7 @@ copy_buffer:
 	/* information size may be longer */
 	length = min_t(size_t, length, (cb->information - *offset));
 
-	if (copy_to_user(ubuf,
-			 cb->response_buffer.data + *offset,
-			 length)) {
+	if (copy_to_user(ubuf, cb->response_buffer.data + *offset, length)) {
 		rets = -EFAULT;
 		goto free;
 	}
@@ -711,7 +533,7 @@ out:
  * returns >=0 data length on success , <0 on error
  */
 static ssize_t mei_write(struct file *file, const char __user *ubuf,
-			  size_t length, loff_t *offset)
+			 size_t length, loff_t *offset)
 {
 	struct mei_cl *cl = file->private_data;
 	struct mei_cl_cb *write_cb = NULL;
@@ -762,8 +584,7 @@ static ssize_t mei_write(struct file *file, const char __user *ubuf,
 			cl->read_cb = NULL;
 			cl->read_pending = 0;
 		}
-	} else if (cl->reading_state == MEI_IDLE &&
-		   !cl->read_pending)
+	} else if (cl->reading_state == MEI_IDLE && !cl->read_pending)
 		*offset = 0;
 
 
@@ -1034,7 +855,7 @@ out:
  */
 #ifdef CONFIG_COMPAT
 static long mei_compat_ioctl(struct file *file,
-		      unsigned int cmd, unsigned long data)
+			unsigned int cmd, unsigned long data)
 {
 	return mei_ioctl(file, cmd, (unsigned long)compat_ptr(data));
 }
@@ -1090,6 +911,206 @@ out:
 	return mask;
 }
 
+/*
+ * file operations structure will be used for mei char device.
+ */
+static const struct file_operations mei_fops = {
+	.owner = THIS_MODULE,
+	.read = mei_read,
+	.unlocked_ioctl = mei_ioctl,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl = mei_compat_ioctl,
+#endif
+	.open = mei_open,
+	.release = mei_release,
+	.write = mei_write,
+	.poll = mei_poll,
+	.llseek = no_llseek
+};
+
+
+/*
+ * Misc Device Struct
+ */
+static struct miscdevice  mei_misc_device = {
+		.name = MEI_DRIVER_NAME,
+		.fops = &mei_fops,
+		.minor = MISC_DYNAMIC_MINOR,
+};
+
+/**
+ * mei_probe - Device Initialization Routine
+ *
+ * @pdev: PCI device structure
+ * @ent: entry in kcs_pci_tbl
+ *
+ * returns 0 on success, <0 on failure.
+ */
+static int __devinit mei_probe(struct pci_dev *pdev,
+				const struct pci_device_id *ent)
+{
+	struct mei_device *dev;
+	int err;
+
+	mutex_lock(&mei_mutex);
+	if (mei_device) {
+		err = -EEXIST;
+		goto end;
+	}
+	/* enable pci dev */
+	err = pci_enable_device(pdev);
+	if (err) {
+		printk(KERN_ERR "mei: Failed to enable pci device.\n");
+		goto end;
+	}
+	/* set PCI host mastering  */
+	pci_set_master(pdev);
+	/* pci request regions for mei driver */
+	err = pci_request_regions(pdev, mei_driver_name);
+	if (err) {
+		printk(KERN_ERR "mei: Failed to get pci regions.\n");
+		goto disable_device;
+	}
+	/* allocates and initializes the mei dev structure */
+	dev = mei_device_init(pdev);
+	if (!dev) {
+		err = -ENOMEM;
+		goto release_regions;
+	}
+	/* mapping  IO device memory */
+	dev->mem_addr = pci_iomap(pdev, 0, 0);
+	if (!dev->mem_addr) {
+		printk(KERN_ERR "mei: mapping I/O device memory failure.\n");
+		err = -ENOMEM;
+		goto free_device;
+	}
+	pci_enable_msi(pdev);
+
+	 /* request and enable interrupt */
+	if (pci_dev_msi_enabled(pdev))
+		err = request_threaded_irq(pdev->irq,
+			NULL,
+			mei_interrupt_thread_handler,
+			0, mei_driver_name, dev);
+	else
+		err = request_threaded_irq(pdev->irq,
+			mei_interrupt_quick_handler,
+			mei_interrupt_thread_handler,
+			IRQF_SHARED, mei_driver_name, dev);
+
+	if (err) {
+		printk(KERN_ERR "mei: request_threaded_irq failure. irq = %d\n",
+		       pdev->irq);
+		goto unmap_memory;
+	}
+	INIT_DELAYED_WORK(&dev->timer_work, mei_timer);
+	if (mei_hw_init(dev)) {
+		printk(KERN_ERR "mei: Init hw failure.\n");
+		err = -ENODEV;
+		goto release_irq;
+	}
+
+	err = misc_register(&mei_misc_device);
+	if (err)
+		goto release_irq;
+
+	mei_device = pdev;
+	pci_set_drvdata(pdev, dev);
+
+
+	schedule_delayed_work(&dev->timer_work, HZ);
+
+	mutex_unlock(&mei_mutex);
+
+	pr_debug("mei: Driver initialization successful.\n");
+
+	return 0;
+
+release_irq:
+	/* disable interrupts */
+	dev->host_hw_state = mei_hcsr_read(dev);
+	mei_disable_interrupts(dev);
+	flush_scheduled_work();
+	free_irq(pdev->irq, dev);
+	pci_disable_msi(pdev);
+unmap_memory:
+	pci_iounmap(pdev, dev->mem_addr);
+free_device:
+	kfree(dev);
+release_regions:
+	pci_release_regions(pdev);
+disable_device:
+	pci_disable_device(pdev);
+end:
+	mutex_unlock(&mei_mutex);
+	printk(KERN_ERR "mei: Driver initialization failed.\n");
+	return err;
+}
+
+/**
+ * mei_remove - Device Removal Routine
+ *
+ * @pdev: PCI device structure
+ *
+ * mei_remove is called by the PCI subsystem to alert the driver
+ * that it should release a PCI device.
+ */
+static void __devexit mei_remove(struct pci_dev *pdev)
+{
+	struct mei_device *dev;
+
+	if (mei_device != pdev)
+		return;
+
+	dev = pci_get_drvdata(pdev);
+	if (!dev)
+		return;
+
+	mutex_lock(&dev->device_lock);
+
+	mei_wd_stop(dev, false);
+
+	mei_device = NULL;
+
+	if (dev->iamthif_cl.state == MEI_FILE_CONNECTED) {
+		dev->iamthif_cl.state = MEI_FILE_DISCONNECTING;
+		mei_disconnect_host_client(dev, &dev->iamthif_cl);
+	}
+	if (dev->wd_cl.state == MEI_FILE_CONNECTED) {
+		dev->wd_cl.state = MEI_FILE_DISCONNECTING;
+		mei_disconnect_host_client(dev, &dev->wd_cl);
+	}
+
+	/* Unregistering watchdog device */
+	mei_watchdog_unregister(dev);
+
+	/* remove entry if already in list */
+	dev_dbg(&pdev->dev, "list del iamthif and wd file list.\n");
+	mei_remove_client_from_file_list(dev, dev->wd_cl.host_client_id);
+	mei_remove_client_from_file_list(dev, dev->iamthif_cl.host_client_id);
+
+	dev->iamthif_current_cb = NULL;
+	dev->me_clients_num = 0;
+
+	mutex_unlock(&dev->device_lock);
+
+	flush_scheduled_work();
+
+	/* disable interrupts */
+	mei_disable_interrupts(dev);
+
+	free_irq(pdev->irq, dev);
+	pci_disable_msi(pdev);
+	pci_set_drvdata(pdev, NULL);
+
+	if (dev->mem_addr)
+		pci_iounmap(pdev, dev->mem_addr);
+
+	kfree(dev);
+
+	pci_release_regions(pdev);
+	pci_disable_device(pdev);
+}
 #ifdef CONFIG_PM
 static int mei_pci_suspend(struct device *device)
 {
@@ -1173,131 +1194,6 @@ static struct pci_driver mei_driver = {
 	.driver.pm = MEI_PM_OPS,
 };
 
-/*
- * file operations structure will be used for mei char device.
- */
-static const struct file_operations mei_fops = {
-	.owner = THIS_MODULE,
-	.read = mei_read,
-	.unlocked_ioctl = mei_ioctl,
-#ifdef CONFIG_COMPAT
-	.compat_ioctl = mei_compat_ioctl,
-#endif
-	.open = mei_open,
-	.release = mei_release,
-	.write = mei_write,
-	.poll = mei_poll,
-};
-
-/**
- * mei_registration_cdev - sets up the cdev structure for mei device.
- *
- * @dev: char device struct
- * @hminor: minor number for registration char device
- * @fops: file operations structure
- *
- * returns 0 on success, <0 on failure.
- */
-static int mei_registration_cdev(struct cdev *dev, int hminor,
-				  const struct file_operations *fops)
-{
-	int ret, devno = MKDEV(mei_major, hminor);
-
-	cdev_init(dev, fops);
-	dev->owner = THIS_MODULE;
-	ret = cdev_add(dev, devno, 1);
-	/* Fail gracefully if need be */
-	if (ret)
-		printk(KERN_ERR "mei: Error %d registering mei device %d\n",
-		       ret, hminor);
-	return ret;
-}
-
-/**
- * mei_register_cdev - registers mei char device
- *
- * returns 0 on success, <0 on failure.
- */
-static int mei_register_cdev(void)
-{
-	int ret;
-	dev_t dev;
-
-	/* registration of char devices */
-	ret = alloc_chrdev_region(&dev, MEI_MINORS_BASE, MEI_MINORS_COUNT,
-				  MEI_DRIVER_NAME);
-	if (ret) {
-		printk(KERN_ERR "mei: Error allocating char device region.\n");
-		return ret;
-	}
-
-	mei_major = MAJOR(dev);
-
-	ret = mei_registration_cdev(&mei_cdev, MEI_MINOR_NUMBER,
-				     &mei_fops);
-	if (ret)
-		unregister_chrdev_region(MKDEV(mei_major, MEI_MINORS_BASE),
-					 MEI_MINORS_COUNT);
-
-	return ret;
-}
-
-/**
- * mei_unregister_cdev - unregisters mei char device
- */
-static void mei_unregister_cdev(void)
-{
-	cdev_del(&mei_cdev);
-	unregister_chrdev_region(MKDEV(mei_major, MEI_MINORS_BASE),
-				 MEI_MINORS_COUNT);
-}
-
-/**
- * mei_sysfs_device_create - adds device entry to sysfs
- *
- * returns 0 on success, <0 on failure.
- */
-static int mei_sysfs_device_create(void)
-{
-	struct class *class;
-	void *tmphdev;
-	int err;
-
-	class = class_create(THIS_MODULE, MEI_DRIVER_NAME);
-	if (IS_ERR(class)) {
-		err = PTR_ERR(class);
-		printk(KERN_ERR "mei: Error creating mei class.\n");
-		goto err_out;
-	}
-
-	tmphdev = device_create(class, NULL, mei_cdev.dev, NULL,
-					MEI_DEV_NAME);
-	if (IS_ERR(tmphdev)) {
-		err = PTR_ERR(tmphdev);
-		goto err_destroy;
-	}
-
-	mei_class = class;
-	return 0;
-
-err_destroy:
-	class_destroy(class);
-err_out:
-	return err;
-}
-
-/**
- * mei_sysfs_device_remove - unregisters the device entry on sysfs
- */
-static void mei_sysfs_device_remove(void)
-{
-	if (IS_ERR_OR_NULL(mei_class))
-		return;
-
-	device_destroy(mei_class, mei_cdev.dev);
-	class_destroy(mei_class);
-}
-
 /**
  * mei_init_module - Driver Registration Routine
  *
@@ -1314,26 +1210,9 @@ static int __init mei_init_module(void)
 		mei_driver_string, mei_driver_version);
 	/* init pci module */
 	ret = pci_register_driver(&mei_driver);
-	if (ret < 0) {
+	if (ret < 0)
 		printk(KERN_ERR "mei: Error registering driver.\n");
-		goto end;
-	}
 
-	ret = mei_register_cdev();
-	if (ret)
-		goto unregister_pci;
-
-	ret = mei_sysfs_device_create();
-	if (ret)
-		goto unregister_cdev;
-
-	return ret;
-
-unregister_cdev:
-	mei_unregister_cdev();
-unregister_pci:
-	pci_unregister_driver(&mei_driver);
-end:
 	return ret;
 }
 
@@ -1347,8 +1226,7 @@ module_init(mei_init_module);
  */
 static void __exit mei_exit_module(void)
 {
-	mei_sysfs_device_remove();
-	mei_unregister_cdev();
+	misc_deregister(&mei_misc_device);
 	pci_unregister_driver(&mei_driver);
 
 	pr_debug("mei: Driver unloaded successfully.\n");
diff --git a/drivers/staging/mei/mei.txt b/drivers/staging/mei/mei.txt
index 17302ad2531f..516bfe7319a6 100644
--- a/drivers/staging/mei/mei.txt
+++ b/drivers/staging/mei/mei.txt
@@ -1,78 +1,74 @@
-Intel MEI
+Intel(R) Management Engine Interface (Intel(R) MEI)
 =======================
 
 Introduction
 =======================
 
-The Intel Management Engine (Intel ME) is an isolated and
-protected computing resource (Coprocessor) residing inside
-Intel chipsets. The Intel ME provides support for computer/IT
-management features.
-The Feature set depends on the Intel chipset SKU.
+The Intel Management Engine (Intel ME) is an isolated andprotected computing
+resource (Co-processor) residing inside certain Intel chipsets. The Intel ME
+provides support for computer/IT management features. The feature set
+depends on the Intel chipset SKU.
 
-The Intel Management Engine Interface (Intel MEI, previously known
-as HECI) is the interface between the Host and Intel ME.
-This interface is exposed to the host as a PCI device.
-The Intel MEI Driver is in charge of the communication channel
-between a host application and the ME feature.
+The Intel Management Engine Interface (Intel MEI, previously known as HECI)
+is the interface between the Host and Intel ME. This interface is exposed
+to the host as a PCI device. The Intel MEI Driver is in charge of the
+communication channel between a host application and the Intel ME feature.
 
-Each Intel ME feature (Intel ME Client) is addressed by
-GUID/UUID and each feature defines its own protocol.
-The protocol is message-based with a header and payload up to
-512 bytes.
+Each Intel ME feature (Intel ME Client) is addressed by a GUID/UUID and
+each client has its own protocol. The protocol is message-based with a
+header and payload up to 512 bytes.
 
-[place holder to URL to protocol definitions]
-
-Prominent usage of the Interface is to communicate with
-Intel Active Management Technology (Intel AMT)
-implemented in firmware running on the Intel ME.
+Prominent usage of the Intel ME Interface is to communicate with Intel(R)
+Active Management Technology (Intel AMT)implemented in firmware running on
+the Intel ME.
 
 Intel AMT provides the ability to manage a host remotely out-of-band (OOB)
-even when the host processor has crashed or is in a sleep state.
+even when the operating system running on the host processor has crashed or
+is in a sleep state.
 
 Some examples of Intel AMT usage are:
    - Monitoring hardware state and platform components
-   - Remote power off/on (useful for green computing or overnight IT maintenance)
+   - Remote power off/on (useful for green computing or overnight IT
+     maintenance)
    - OS updates
    - Storage of useful platform information such as software assets
-   - built-in hardware KVM
-   - selective network isolation of Ethernet and IP protocol flows based on
-     policies set by a remote management console
+   - Built-in hardware KVM
+   - Selective network isolation of Ethernet and IP protocol flows based
+     on policies set by a remote management console
    - IDE device redirection from remote management console
 
 Intel AMT (OOB) communication is based on SOAP (deprecated
-starting with Release 6.0) over HTTP/HTTPS or WS-Management protocol
-over HTTP and HTTPS that are received from a remote
-management console application.
+starting with Release 6.0) over HTTP/S or WS-Management protocol over
+HTTP/S that are received from a remote management console application.
 
 For more information about Intel AMT:
-http://software.intel.com/sites/manageability/AMT_Implementation_and_Reference_Guide/WordDocuments/aboutintelamt.htm
-
+http://software.intel.com/sites/manageability/AMT_Implementation_and_Reference_Guide
 
-MEI Driver
+Intel MEI Driver
 =======================
 
-The driver exposes a character device called /dev/mei.
+The driver exposes a misc device called /dev/mei.
 
-An application maintains communication with an ME feature while
-/dev/mei is open. The binding to a specific features is performed
-by calling MEI_CONNECT_CLIENT_IOCTL, which passes the desired UUID.
-The number of instances of an ME feature that can be opened
-at the same time depends on the ME feature, but most of the
+An application maintains communication with an Intel ME feature while
+/dev/mei is open. The binding to a specific features is performed by calling
+MEI_CONNECT_CLIENT_IOCTL, which passes the desired UUID.
+The number of instances of an Intel ME feature that can be opened
+at the same time depends on the Intel ME feature, but most of the
 features allow only a single instance.
 
-
-The Intel AMT Host Interface (AMTHI) feature requires multiple
-simultaneous user applications, therefore the MEI driver handles
+The Intel AMT Host Interface (Intel AMTHI) feature supports multiple
+simultaneous user applications. Therefore, the Intel MEI driver handles
 this internally by maintaining request queues for the applications.
 
-The driver is oblivious to data that are passed between
+The driver is oblivious to data that is passed between firmware feature
+and host application.
 
-Because some of the ME features can change the system
-configuration, the driver by default allows only privileged
+Because some of the Intel ME features can change the system
+configuration, the driver by default allows only a privileged
 user to access it.
 
-A Code snippet for application communicating with AMTHI client:
+A code snippet for an application communicating with
+Intel AMTHI client:
 	struct mei_connect_client_data data;
 	fd = open(MEI_DEVICE);
 
@@ -80,7 +76,7 @@ A Code snippet for application communicating with AMTHI client:
 
 	ioctl(fd, IOCTL_MEI_CONNECT_CLIENT, &data);
 
-	printf(“Ver=%d, MaxLen=%ld\n”,
+	printf("Ver=%d, MaxLen=%ld\n",
 			data.d.in_client_uuid.protocol_version,
 			data.d.in_client_uuid.max_msg_length);
 
@@ -95,76 +91,106 @@ A Code snippet for application communicating with AMTHI client:
 	[...]
 	close(fd);
 
-ME Applications:
+IOCTL:
+======
+The Intel MEI Driver supports the following IOCTL command:
+	IOCTL_MEI_CONNECT_CLIENT	Connect to firmware Feature (client).
+
+	usage:
+		struct mei_connect_client_data clientData;
+		ioctl(fd, IOCTL_MEI_CONNECT_CLIENT, &clientData);
+
+	inputs:
+		mei_connect_client_data struct contain the following
+		input field:
+
+		in_client_uuid -	UUID of the FW Feature that needs
+					to connect to.
+	outputs:
+		out_client_properties - Client Properties: MTU and Protocol Version.
+
+	error returns:
+		EINVAL	Wrong IOCTL Number
+		ENODEV	Device or Connection is not initialized or ready.
+			(e.g. Wrong UUID)
+		ENOMEM	Unable to allocate memory to client internal data.
+		EFAULT	Fatal Error (e.g. Unable to access user input data)
+		EBUSY	Connection Already Open
+
+	Notes:
+        max_msg_length (MTU) in client properties describes the maximum
+        data that can be sent or received. (e.g. if MTU=2K, can send
+        requests up to bytes 2k and received responses upto 2k bytes).
+
+Intel ME Applications:
 ==============
 
 1) Intel Local Management Service (Intel LMS)
-	Applications running locally on the platform communicate with
-	Intel AMT Release 2.0 and later releases in the same way
-	that network applications do via SOAP over HTTP (deprecated
-	starting with Release 6.0) or with WS-Management over SOAP over
-	HTTP. which means that some Intel AMT feature can be access
-	from a local application using same Network interface as for
-	remote application.
-
-	When a local application sends a message addressed to the local
-	Intel AMT host name, the Local Manageability Service (LMS),
-	which listens for traffic directed to the host name, intercepts
-	the message and routes it to the Intel Management Engine Interface.
+
+	Applications running locally on the platform communicate with Intel AMT Release
+	2.0 and later releases in the same way that network applications do via SOAP
+	over HTTP (deprecated starting with Release 6.0) or with WS-Management over
+	SOAP over HTTP. This means that some Intel AMT features can be accessed from a
+	local application using the same network interface as a remote application
+	communicating with Intel AMT over the network.
+
+	When a local application sends a message addressed to the local Intel AMT host
+	name, the Intel LMS, which listens for traffic directed to the host name,
+	intercepts the message and routes it to the Intel MEI.
 	For more information:
-	http://software.intel.com/sites/manageability/AMT_Implementation_and_
-	Reference_Guide/WordDocuments/localaccess1.htm
-
-	The LMS opens a connection using the MEI driver to the LMS
-	FW feature using a defined UUID and then communicates with the
-	feature using a protocol
-	called Intel(R) AMT Port Forwarding Protocol (APF protocol).
-	The protocol is used to maintain multiple sessions with
-	Intel AMT from a single application.
-	See the protocol specification in
-	the Intel(R) AMT Implementation and Reference Guide
-	http://software.intel.com/sites/manageability/AMT_Implementation_and_Reference_Guide/HTMLDocuments/MPSDocuments/Intel%20AMT%20Port%20Forwarding%20Protocol%20Reference%20Manual.pdf
-
-  2) Intel AMT Remote configuration using a Local Agent:
+	http://software.intel.com/sites/manageability/AMT_Implementation_and_Reference_Guide
+	Under "About Intel AMT" => "Local Access"
+
+	For downloading Intel LMS:
+	http://software.intel.com/en-us/articles/download-the-latest-intel-amt-open-source-drivers/
+
+	The Intel LMS opens a connection using the Intel MEI driver to the Intel LMS
+	firmware feature using a defined UUID and then communicates with the feature
+	using a protocol called Intel AMT Port Forwarding Protocol(Intel APF protocol).
+	The protocol is used to maintain multiple sessions with Intel AMT from a
+	single application.
+
+	See the protocol specification in the Intel AMT Software Development Kit(SDK)
+	http://software.intel.com/sites/manageability/AMT_Implementation_and_Reference_Guide
+	Under "SDK Resources" => "Intel(R) vPro(TM) Gateway(MPS)"
+	=> "Information for Intel(R) vPro(TM) Gateway Developers"
+	=> "Description of the Intel AMT Port Forwarding (APF)Protocol"
+
+  2) Intel AMT Remote configuration using a Local Agent
 	A Local Agent enables IT personnel to configure Intel AMT out-of-the-box
-	without requiring installing additional data to enable setup.
-	The remote configuration process may involve an ISV-developed remote
-	configuration agent that runs on the host.
+	without requiring installing additional data to enable setup. The remote
+	configuration process may involve an ISV-developed remote configuration
+	agent that runs on the host.
 	For more information:
-	http://software.intel.com/sites/manageability/AMT_Implementation_and_Reference_Guide/WordDocuments/remoteconfigurationwithalocalagent.htm
+	http://software.intel.com/sites/manageability/AMT_Implementation_and_Reference_Guide
+	Under "Setup and Configuration of Intel AMT" =>
+	"SDK Tools Supporting Setup and Configuration" =>
+	"Using the Local Agent Sample"
+
+	An open source Intel AMT configuration utility,	implementing a local agent
+	that accesses the Intel MEI driver, can be found here:
+	http://software.intel.com/en-us/articles/download-the-latest-intel-amt-open-source-drivers/
 
-	How the Local Agent Works (including Command structs):
-	http://software.intel.com/sites/manageability/AMT_Implementation_and_Reference_Guide/WordDocuments/howthelocalagentsampleworks.htm
 
 Intel AMT OS Health Watchdog:
 =============================
 The Intel AMT Watchdog is an OS Health (Hang/Crash) watchdog.
 Whenever the OS hangs or crashes, Intel AMT will send an event
-to whoever subscribed to this event. This mechanism means that
-IT knows when a platform crashes even when there is a hard failure
-on the host.
-The AMT Watchdog is composed of two parts:
-	1) FW Feature - that receives the heartbeats
-	   and sends an event when the heartbeats stop.
-	2) MEI driver – connects to the watchdog (WD) feature,
-	   configures the watchdog and sends the heartbeats.
-
-The MEI driver configures the Watchdog to expire by default
-every 120sec unless set by the user using module parameters.
-The Driver then sends heartbeats every 2sec.
+to any subsciber to this event. This mechanism means that
+IT knows when a platform crashes even when there is a hard failureon the host.
 
-If WD feature does not exist (i.e. the connection failed),
-the MEI driver will disable the sending of heartbeats.
+The Intel AMT Watchdog is composed of two parts:
+	1) Firmware feature - receives the heartbeats
+	   and sends an event when the heartbeats stop.
+	2) Intel MEI driver - connects to the watchdog feature, configures the
+	   watchdog and sends the heartbeats.
 
-Module Parameters
-=================
-watchdog_timeout - the user can use this module parameter
-to change the watchdog timeout setting.
+The Intel MEI driver uses the kernel watchdog to configure the Intel AMT
+Watchdog and to send heartbeats to it. The default timeout of the
+watchdog is 120 seconds.
 
-This value sets the Intel AMT watchdog timeout interval in seconds;
-the default value is 120sec.
-in order to disable the watchdog activites set the value to 0.
-Normal values should be between 120 and 65535
+If the Intel AMT Watchdog feature does not exist (i.e. the connection failed),
+the Intel MEI driver will disable the sending of heartbeats.
 
 Supported Chipsets:
 ==================
diff --git a/drivers/staging/mei/mei_dev.h b/drivers/staging/mei/mei_dev.h
index af4b1af9eeac..82bacfc624c5 100644
--- a/drivers/staging/mei/mei_dev.h
+++ b/drivers/staging/mei/mei_dev.h
@@ -23,13 +23,6 @@
 #include "hw.h"
 
 /*
- * MEI Char Driver Minors
- */
-#define MEI_MINORS_BASE	1
-#define MEI_MINORS_COUNT	1
-#define MEI_MINOR_NUMBER	1
-
-/*
  * watch dog definition
  */
 #define MEI_WATCHDOG_DATA_SIZE         16
@@ -42,11 +35,6 @@
  */
 extern struct pci_dev *mei_device;
 
-/*
- * AMT Watchdog Device
- */
-#define INTEL_AMT_WATCHDOG_ID "INTCAMT"
-extern struct watchdog_device amt_wd_dev;
 
 /*
  * AMTHI Client UUID
@@ -175,7 +163,6 @@ struct mei_cl {
 
 struct mei_io_list {
 	struct mei_cl_cb mei_cb;
-	int status;
 };
 
 /* MEI private device struct */
diff --git a/drivers/staging/mei/wd.c b/drivers/staging/mei/wd.c
index ffca7ca32658..8094941a98f1 100644
--- a/drivers/staging/mei/wd.c
+++ b/drivers/staging/mei/wd.c
@@ -35,12 +35,16 @@ const u8 mei_wd_state_independence_msg[3][4] = {
 	{0x07, 0x02, 0x01, 0x10}
 };
 
+/*
+ * AMT Watchdog Device
+ */
+#define INTEL_AMT_WATCHDOG_ID "INTCAMT"
+
 /* UUIDs for AMT F/W clients */
 const uuid_le mei_wd_guid = UUID_LE(0x05B79A6F, 0x4628, 0x4D7F, 0x89,
 						0x9D, 0xA9, 0x15, 0x14, 0xCB,
 						0x32, 0xAB);
 
-
 void mei_wd_set_start_timeout(struct mei_device *dev, u16 timeout)
 {
 	dev_dbg(&dev->pdev->dev, "timeout=%d.\n", timeout);
@@ -331,14 +335,14 @@ static int mei_wd_ops_set_timeout(struct watchdog_device *wd_dev, unsigned int t
 /*
  * Watchdog Device structs
  */
-const struct watchdog_ops wd_ops = {
+static const struct watchdog_ops wd_ops = {
 		.owner = THIS_MODULE,
 		.start = mei_wd_ops_start,
 		.stop = mei_wd_ops_stop,
 		.ping = mei_wd_ops_ping,
 		.set_timeout = mei_wd_ops_set_timeout,
 };
-const struct watchdog_info wd_info = {
+static const struct watchdog_info wd_info = {
 		.identity = INTEL_AMT_WATCHDOG_ID,
 		.options = WDIOF_KEEPALIVEPING,
 };
@@ -352,3 +356,25 @@ struct watchdog_device amt_wd_dev = {
 };
 
 
+void  mei_watchdog_register(struct mei_device *dev)
+{
+	dev_dbg(&dev->pdev->dev, "dev->wd_timeout =%d.\n", dev->wd_timeout);
+
+	dev->wd_due_counter = !!dev->wd_timeout;
+
+	if (watchdog_register_device(&amt_wd_dev)) {
+		dev_err(&dev->pdev->dev, "unable to register watchdog device.\n");
+		dev->wd_interface_reg = false;
+	} else {
+		dev_dbg(&dev->pdev->dev, "successfully register watchdog interface.\n");
+		dev->wd_interface_reg = true;
+	}
+}
+
+void mei_watchdog_unregister(struct mei_device *dev)
+{
+	if (dev->wd_interface_reg)
+		watchdog_unregister_device(&amt_wd_dev);
+	dev->wd_interface_reg = false;
+}
+
diff --git a/drivers/staging/nvec/nvec.c b/drivers/staging/nvec/nvec.c
index e06b867d1e0c..fafdfa25e139 100644
--- a/drivers/staging/nvec/nvec.c
+++ b/drivers/staging/nvec/nvec.c
@@ -27,6 +27,8 @@
 #include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/irq.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
 #include <linux/list.h>
 #include <linux/mfd/core.h>
 #include <linux/mutex.h>
@@ -727,8 +729,24 @@ static int __devinit tegra_nvec_probe(struct platform_device *pdev)
 	}
 	platform_set_drvdata(pdev, nvec);
 	nvec->dev = &pdev->dev;
-	nvec->gpio = pdata->gpio;
-	nvec->i2c_addr = pdata->i2c_addr;
+
+	if (pdata) {
+		nvec->gpio = pdata->gpio;
+		nvec->i2c_addr = pdata->i2c_addr;
+	} else if (nvec->dev->of_node) {
+		nvec->gpio = of_get_named_gpio(nvec->dev->of_node, "request-gpios", 0);
+		if (nvec->gpio < 0) {
+			dev_err(&pdev->dev, "no gpio specified");
+			goto failed;
+		}
+		if (of_property_read_u32(nvec->dev->of_node, "slave-addr", &nvec->i2c_addr)) {
+			dev_err(&pdev->dev, "no i2c address specified");
+			goto failed;
+		}
+	} else {
+		dev_err(&pdev->dev, "no platform data\n");
+		goto failed;
+	}
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!res) {
@@ -893,6 +911,13 @@ static int tegra_nvec_resume(struct platform_device *pdev)
 #define tegra_nvec_resume NULL
 #endif
 
+/* Match table for of_platform binding */
+static const struct of_device_id nvidia_nvec_of_match[] __devinitconst = {
+	{ .compatible = "nvidia,nvec", },
+	{},
+};
+MODULE_DEVICE_TABLE(of, nvidia_nvec_of_match);
+
 static struct platform_driver nvec_device_driver = {
 	.probe   = tegra_nvec_probe,
 	.remove  = __devexit_p(tegra_nvec_remove),
@@ -901,6 +926,7 @@ static struct platform_driver nvec_device_driver = {
 	.driver  = {
 		.name = "nvec",
 		.owner = THIS_MODULE,
+		.of_match_table = nvidia_nvec_of_match,
 	}
 };
 
diff --git a/drivers/staging/olpc_dcon/olpc_dcon.c b/drivers/staging/olpc_dcon/olpc_dcon.c
index af24ddfb58c9..3d9199320d86 100644
--- a/drivers/staging/olpc_dcon/olpc_dcon.c
+++ b/drivers/staging/olpc_dcon/olpc_dcon.c
@@ -34,8 +34,8 @@
 
 /* Module definitions */
 
-static int resumeline = 898;
-module_param(resumeline, int, 0444);
+static ushort resumeline = 898;
+module_param(resumeline, ushort, 0444);
 
 /* Default off since it doesn't work on DCON ASIC in B-test OLPC board */
 static int useaa = 1;
@@ -456,7 +456,7 @@ static ssize_t dcon_mono_store(struct device *dev,
 	unsigned long enable_mono;
 	int rc;
 
-	rc = strict_strtoul(buf, 10, &enable_mono);
+	rc = kstrtoul(buf, 10, &enable_mono);
 	if (rc)
 		return rc;
 
@@ -472,7 +472,7 @@ static ssize_t dcon_freeze_store(struct device *dev,
 	unsigned long output;
 	int ret;
 
-	ret = strict_strtoul(buf, 10, &output);
+	ret = kstrtoul(buf, 10, &output);
 	if (ret)
 		return ret;
 
@@ -498,10 +498,10 @@ static ssize_t dcon_freeze_store(struct device *dev,
 static ssize_t dcon_resumeline_store(struct device *dev,
 	struct device_attribute *attr, const char *buf, size_t count)
 {
-	unsigned long rl;
+	unsigned short rl;
 	int rc;
 
-	rc = strict_strtoul(buf, 10, &rl);
+	rc = kstrtou16(buf, 10, &rl);
 	if (rc)
 		return rc;
 
@@ -517,7 +517,7 @@ static ssize_t dcon_sleep_store(struct device *dev,
 	unsigned long output;
 	int ret;
 
-	ret = strict_strtoul(buf, 10, &output);
+	ret = kstrtoul(buf, 10, &output);
 	if (ret)
 		return ret;
 
@@ -755,9 +755,9 @@ static int dcon_resume(struct i2c_client *client)
 irqreturn_t dcon_interrupt(int irq, void *id)
 {
 	struct dcon_priv *dcon = id;
-	int status = pdata->read_status();
+	u8 status;
 
-	if (status == -1)
+	if (pdata->read_status(&status))
 		return IRQ_NONE;
 
 	switch (status & 3) {
diff --git a/drivers/staging/olpc_dcon/olpc_dcon.h b/drivers/staging/olpc_dcon/olpc_dcon.h
index 0264c94375aa..167a41778be6 100644
--- a/drivers/staging/olpc_dcon/olpc_dcon.h
+++ b/drivers/staging/olpc_dcon/olpc_dcon.h
@@ -84,7 +84,7 @@ struct dcon_platform_data {
 	int (*init)(struct dcon_priv *);
 	void (*bus_stabilize_wiggle)(void);
 	void (*set_dconload)(int);
-	u8 (*read_status)(void);
+	int (*read_status)(u8 *);
 };
 
 #include <linux/interrupt.h>
diff --git a/drivers/staging/olpc_dcon/olpc_dcon_xo_1.c b/drivers/staging/olpc_dcon/olpc_dcon_xo_1.c
index 2245213df607..cb6ce0cf92a0 100644
--- a/drivers/staging/olpc_dcon/olpc_dcon_xo_1.c
+++ b/drivers/staging/olpc_dcon/olpc_dcon_xo_1.c
@@ -183,17 +183,15 @@ static void dcon_set_dconload_1(int val)
 	gpio_set_value(OLPC_GPIO_DCON_LOAD, val);
 }
 
-static u8 dcon_read_status_xo_1(void)
+static int dcon_read_status_xo_1(u8 *status)
 {
-	u8 status;
-
-	status = gpio_get_value(OLPC_GPIO_DCON_STAT0);
-	status |= gpio_get_value(OLPC_GPIO_DCON_STAT1) << 1;
+	*status = gpio_get_value(OLPC_GPIO_DCON_STAT0);
+	*status |= gpio_get_value(OLPC_GPIO_DCON_STAT1) << 1;
 
 	/* Clear the negative edge status for GPIO7 */
 	cs5535_gpio_set(OLPC_GPIO_DCON_IRQ, GPIO_NEGATIVE_EDGE_STS);
 
-	return status;
+	return 0;
 }
 
 struct dcon_platform_data dcon_pdata_xo_1 = {
diff --git a/drivers/staging/olpc_dcon/olpc_dcon_xo_1_5.c b/drivers/staging/olpc_dcon/olpc_dcon_xo_1_5.c
index a6a6cf2adc4d..69415eec425c 100644
--- a/drivers/staging/olpc_dcon/olpc_dcon_xo_1_5.c
+++ b/drivers/staging/olpc_dcon/olpc_dcon_xo_1_5.c
@@ -167,20 +167,18 @@ static void dcon_set_dconload_xo_1_5(int val)
 	gpio_set_value(VX855_GPIO(1), val);
 }
 
-static u8 dcon_read_status_xo_1_5(void)
+static int dcon_read_status_xo_1_5(u8 *status)
 {
-	u8 status;
-
 	if (!dcon_was_irq())
 		return -1;
 
 	/* i believe this is the same as "inb(0x44b) & 3" */
-	status = gpio_get_value(VX855_GPI(10));
-	status |= gpio_get_value(VX855_GPI(11)) << 1;
+	*status = gpio_get_value(VX855_GPI(10));
+	*status |= gpio_get_value(VX855_GPI(11)) << 1;
 
 	dcon_clear_irq();
 
-	return status;
+	return 0;
 }
 
 struct dcon_platform_data dcon_pdata_xo_1_5 = {
diff --git a/drivers/staging/omapdrm/Kconfig b/drivers/staging/omapdrm/Kconfig
new file mode 100644
index 000000000000..81a7cba4a0c5
--- /dev/null
+++ b/drivers/staging/omapdrm/Kconfig
@@ -0,0 +1,25 @@
+
+config DRM_OMAP
+	tristate "OMAP DRM"
+	depends on DRM && !CONFIG_FB_OMAP2
+	depends on ARCH_OMAP2PLUS
+	select DRM_KMS_HELPER
+	select OMAP2_DSS
+	select FB_SYS_FILLRECT
+	select FB_SYS_COPYAREA
+	select FB_SYS_IMAGEBLIT
+	select FB_SYS_FOPS
+	default n
+	help
+	  DRM display driver for OMAP2/3/4 based boards.
+
+config DRM_OMAP_NUM_CRTCS
+	int "Number of CRTCs"
+	range 1 10
+	default 1  if ARCH_OMAP2 || ARCH_OMAP3
+	default 2  if ARCH_OMAP4
+	depends on DRM_OMAP
+	help
+	  Select the number of video overlays which can be used as framebuffers.
+	  The remaining overlays are reserved for video.
+
diff --git a/drivers/staging/omapdrm/Makefile b/drivers/staging/omapdrm/Makefile
new file mode 100644
index 000000000000..592cf69020cd
--- /dev/null
+++ b/drivers/staging/omapdrm/Makefile
@@ -0,0 +1,21 @@
+#
+# Makefile for the drm device driver.  This driver provides support for the
+# Direct Rendering Infrastructure (DRI)
+#
+
+ccflags-y := -Iinclude/drm -Werror
+omapdrm-y := omap_drv.o \
+	omap_debugfs.o \
+	omap_crtc.o \
+	omap_encoder.o \
+	omap_connector.o \
+	omap_fb.o \
+	omap_fbdev.o \
+	omap_gem.o \
+	omap_dmm_tiler.o \
+	tcm-sita.o
+
+# temporary:
+omapdrm-y += omap_gem_helpers.o
+
+obj-$(CONFIG_DRM_OMAP)	+= omapdrm.o
diff --git a/drivers/staging/omapdrm/TODO b/drivers/staging/omapdrm/TODO
new file mode 100644
index 000000000000..55b18377ac4f
--- /dev/null
+++ b/drivers/staging/omapdrm/TODO
@@ -0,0 +1,38 @@
+TODO
+. check error handling/cleanup paths
+. add drm_plane / overlay support
+. add video decode/encode support (via syslink3 + codec-engine)
+. still some rough edges with flipping.. event back to userspace should
+  really come after VSYNC interrupt
+. where should we do eviction (detatch_pages())?  We aren't necessarily
+  accessing the pages via a GART, so maybe we need some other threshold
+  to put a cap on the # of pages that can be pin'd.  (It is mostly only
+  of interest in case you have a swap partition/file.. which a lot of
+  these devices do not.. but it doesn't hurt for the driver to do the
+  right thing anyways.)
+  . Use mm_shrinker to trigger unpinning pages.  Need to figure out how
+    to handle next issue first (I think?)
+  . Note TTM already has some mm_shrinker stuff..  maybe an argument to
+    move to TTM?  Or maybe something that could be factored out in common?
+. GEM/shmem backed pages can have existing mappings (kernel linear map,
+  etc..), which isn't really ideal.
+. Revisit GEM sync object infrastructure.. TTM has some framework for this
+  already.  Possibly this could be refactored out and made more common?
+  There should be some way to do this with less wheel-reinvention.
+. Review DSS vs KMS mismatches.  The omap_dss_device is sort of part encoder,
+  part connector.  Which results in a bit of duct tape to fwd calls from
+  encoder to connector.  Possibly this could be done a bit better.
+. Solve PM sequencing on resume.  DMM/TILER must be reloaded before any
+  access is made from any component in the system.  Which means on suspend
+  CRTC's should be disabled, and on resume the LUT should be reprogrammed
+  before CRTC's are re-enabled, to prevent DSS from trying to DMA from a
+  buffer mapped in DMM/TILER before LUT is reloaded.
+. Add debugfs information for DMM/TILER
+
+Userspace:
+. git://github.com/robclark/xf86-video-omap.git
+
+Currently tested on
+. OMAP3530 beagleboard
+. OMAP4430 pandaboard
+. OMAP4460 pandaboard
diff --git a/drivers/staging/omapdrm/omap_connector.c b/drivers/staging/omapdrm/omap_connector.c
new file mode 100644
index 000000000000..5e2856c0e0bb
--- /dev/null
+++ b/drivers/staging/omapdrm/omap_connector.c
@@ -0,0 +1,371 @@
+/*
+ * drivers/staging/omapdrm/omap_connector.c
+ *
+ * Copyright (C) 2011 Texas Instruments
+ * Author: Rob Clark <rob@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "omap_drv.h"
+
+#include "drm_crtc.h"
+#include "drm_crtc_helper.h"
+
+/*
+ * connector funcs
+ */
+
+#define to_omap_connector(x) container_of(x, struct omap_connector, base)
+
+struct omap_connector {
+	struct drm_connector base;
+	struct omap_dss_device *dssdev;
+};
+
+static inline void copy_timings_omap_to_drm(struct drm_display_mode *mode,
+		struct omap_video_timings *timings)
+{
+	mode->clock = timings->pixel_clock;
+
+	mode->hdisplay = timings->x_res;
+	mode->hsync_start = mode->hdisplay + timings->hfp;
+	mode->hsync_end = mode->hsync_start + timings->hsw;
+	mode->htotal = mode->hsync_end + timings->hbp;
+
+	mode->vdisplay = timings->y_res;
+	mode->vsync_start = mode->vdisplay + timings->vfp;
+	mode->vsync_end = mode->vsync_start + timings->vsw;
+	mode->vtotal = mode->vsync_end + timings->vbp;
+
+	/* note: whether or not it is interlaced, +/- h/vsync, etc,
+	 * which should be set in the mode flags, is not exposed in
+	 * the omap_video_timings struct.. but hdmi driver tracks
+	 * those separately so all we have to have to set the mode
+	 * is the way to recover these timings values, and the
+	 * omap_dss_driver would do the rest.
+	 */
+}
+
+static inline void copy_timings_drm_to_omap(struct omap_video_timings *timings,
+		struct drm_display_mode *mode)
+{
+	timings->pixel_clock = mode->clock;
+
+	timings->x_res = mode->hdisplay;
+	timings->hfp = mode->hsync_start - mode->hdisplay;
+	timings->hsw = mode->hsync_end - mode->hsync_start;
+	timings->hbp = mode->htotal - mode->hsync_end;
+
+	timings->y_res = mode->vdisplay;
+	timings->vfp = mode->vsync_start - mode->vdisplay;
+	timings->vsw = mode->vsync_end - mode->vsync_start;
+	timings->vbp = mode->vtotal - mode->vsync_end;
+}
+
+static void omap_connector_dpms(struct drm_connector *connector, int mode)
+{
+	struct omap_connector *omap_connector = to_omap_connector(connector);
+	struct omap_dss_device *dssdev = omap_connector->dssdev;
+	int old_dpms;
+
+	DBG("%s: %d", dssdev->name, mode);
+
+	old_dpms = connector->dpms;
+
+	/* from off to on, do from crtc to connector */
+	if (mode < old_dpms)
+		drm_helper_connector_dpms(connector, mode);
+
+	if (mode == DRM_MODE_DPMS_ON) {
+		/* store resume info for suspended displays */
+		switch (dssdev->state) {
+		case OMAP_DSS_DISPLAY_SUSPENDED:
+			dssdev->activate_after_resume = true;
+			break;
+		case OMAP_DSS_DISPLAY_DISABLED: {
+			int ret = dssdev->driver->enable(dssdev);
+			if (ret) {
+				DBG("%s: failed to enable: %d",
+						dssdev->name, ret);
+				dssdev->driver->disable(dssdev);
+			}
+			break;
+		}
+		default:
+			break;
+		}
+	} else {
+		/* TODO */
+	}
+
+	/* from on to off, do from connector to crtc */
+	if (mode > old_dpms)
+		drm_helper_connector_dpms(connector, mode);
+}
+
+enum drm_connector_status omap_connector_detect(
+		struct drm_connector *connector, bool force)
+{
+	struct omap_connector *omap_connector = to_omap_connector(connector);
+	struct omap_dss_device *dssdev = omap_connector->dssdev;
+	struct omap_dss_driver *dssdrv = dssdev->driver;
+	enum drm_connector_status ret;
+
+	if (dssdrv->detect) {
+		if (dssdrv->detect(dssdev)) {
+			ret = connector_status_connected;
+		} else {
+			ret = connector_status_disconnected;
+		}
+	} else {
+		ret = connector_status_unknown;
+	}
+
+	VERB("%s: %d (force=%d)", omap_connector->dssdev->name, ret, force);
+
+	return ret;
+}
+
+static void omap_connector_destroy(struct drm_connector *connector)
+{
+	struct omap_connector *omap_connector = to_omap_connector(connector);
+	struct omap_dss_device *dssdev = omap_connector->dssdev;
+
+	dssdev->driver->disable(dssdev);
+
+	DBG("%s", omap_connector->dssdev->name);
+	drm_sysfs_connector_remove(connector);
+	drm_connector_cleanup(connector);
+	kfree(omap_connector);
+
+	omap_dss_put_device(dssdev);
+}
+
+#define MAX_EDID  512
+
+static int omap_connector_get_modes(struct drm_connector *connector)
+{
+	struct omap_connector *omap_connector = to_omap_connector(connector);
+	struct omap_dss_device *dssdev = omap_connector->dssdev;
+	struct omap_dss_driver *dssdrv = dssdev->driver;
+	struct drm_device *dev = connector->dev;
+	int n = 0;
+
+	DBG("%s", omap_connector->dssdev->name);
+
+	/* if display exposes EDID, then we parse that in the normal way to
+	 * build table of supported modes.. otherwise (ie. fixed resolution
+	 * LCD panels) we just return a single mode corresponding to the
+	 * currently configured timings:
+	 */
+	if (dssdrv->read_edid) {
+		void *edid = kzalloc(MAX_EDID, GFP_KERNEL);
+
+		if ((dssdrv->read_edid(dssdev, edid, MAX_EDID) > 0) &&
+				drm_edid_is_valid(edid)) {
+			drm_mode_connector_update_edid_property(
+					connector, edid);
+			n = drm_add_edid_modes(connector, edid);
+			kfree(connector->display_info.raw_edid);
+			connector->display_info.raw_edid = edid;
+		} else {
+			drm_mode_connector_update_edid_property(
+					connector, NULL);
+			connector->display_info.raw_edid = NULL;
+			kfree(edid);
+		}
+	} else {
+		struct drm_display_mode *mode = drm_mode_create(dev);
+		struct omap_video_timings timings;
+
+		dssdrv->get_timings(dssdev, &timings);
+
+		copy_timings_omap_to_drm(mode, &timings);
+
+		mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
+		drm_mode_set_name(mode);
+		drm_mode_probed_add(connector, mode);
+
+		n = 1;
+	}
+
+	return n;
+}
+
+static int omap_connector_mode_valid(struct drm_connector *connector,
+				 struct drm_display_mode *mode)
+{
+	struct omap_connector *omap_connector = to_omap_connector(connector);
+	struct omap_dss_device *dssdev = omap_connector->dssdev;
+	struct omap_dss_driver *dssdrv = dssdev->driver;
+	struct omap_video_timings timings = {0};
+	struct drm_device *dev = connector->dev;
+	struct drm_display_mode *new_mode;
+	int ret = MODE_BAD;
+
+	copy_timings_drm_to_omap(&timings, mode);
+	mode->vrefresh = drm_mode_vrefresh(mode);
+
+	if (!dssdrv->check_timings(dssdev, &timings)) {
+		/* check if vrefresh is still valid */
+		new_mode = drm_mode_duplicate(dev, mode);
+		new_mode->clock = timings.pixel_clock;
+		new_mode->vrefresh = 0;
+		if (mode->vrefresh == drm_mode_vrefresh(new_mode))
+			ret = MODE_OK;
+		drm_mode_destroy(dev, new_mode);
+	}
+
+	DBG("connector: mode %s: "
+			"%d:\"%s\" %d %d %d %d %d %d %d %d %d %d 0x%x 0x%x",
+			(ret == MODE_OK) ? "valid" : "invalid",
+			mode->base.id, mode->name, mode->vrefresh, mode->clock,
+			mode->hdisplay, mode->hsync_start,
+			mode->hsync_end, mode->htotal,
+			mode->vdisplay, mode->vsync_start,
+			mode->vsync_end, mode->vtotal, mode->type, mode->flags);
+
+	return ret;
+}
+
+struct drm_encoder *omap_connector_attached_encoder(
+		struct drm_connector *connector)
+{
+	int i;
+	struct omap_connector *omap_connector = to_omap_connector(connector);
+
+	for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) {
+		struct drm_mode_object *obj;
+
+		if (connector->encoder_ids[i] == 0)
+			break;
+
+		obj = drm_mode_object_find(connector->dev,
+				connector->encoder_ids[i],
+				DRM_MODE_OBJECT_ENCODER);
+
+		if (obj) {
+			struct drm_encoder *encoder = obj_to_encoder(obj);
+			struct omap_overlay_manager *mgr =
+					omap_encoder_get_manager(encoder);
+			DBG("%s: found %s", omap_connector->dssdev->name,
+					mgr->name);
+			return encoder;
+		}
+	}
+
+	DBG("%s: no encoder", omap_connector->dssdev->name);
+
+	return NULL;
+}
+
+static const struct drm_connector_funcs omap_connector_funcs = {
+	.dpms = omap_connector_dpms,
+	.detect = omap_connector_detect,
+	.fill_modes = drm_helper_probe_single_connector_modes,
+	.destroy = omap_connector_destroy,
+};
+
+static const struct drm_connector_helper_funcs omap_connector_helper_funcs = {
+	.get_modes = omap_connector_get_modes,
+	.mode_valid = omap_connector_mode_valid,
+	.best_encoder = omap_connector_attached_encoder,
+};
+
+/* called from encoder when mode is set, to propagate settings to the dssdev */
+void omap_connector_mode_set(struct drm_connector *connector,
+		struct drm_display_mode *mode)
+{
+	struct drm_device *dev = connector->dev;
+	struct omap_connector *omap_connector = to_omap_connector(connector);
+	struct omap_dss_device *dssdev = omap_connector->dssdev;
+	struct omap_dss_driver *dssdrv = dssdev->driver;
+	struct omap_video_timings timings;
+
+	copy_timings_drm_to_omap(&timings, mode);
+
+	DBG("%s: set mode: %d:\"%s\" %d %d %d %d %d %d %d %d %d %d 0x%x 0x%x",
+			omap_connector->dssdev->name,
+			mode->base.id, mode->name, mode->vrefresh, mode->clock,
+			mode->hdisplay, mode->hsync_start,
+			mode->hsync_end, mode->htotal,
+			mode->vdisplay, mode->vsync_start,
+			mode->vsync_end, mode->vtotal, mode->type, mode->flags);
+
+	if (dssdrv->check_timings(dssdev, &timings)) {
+		dev_err(dev->dev, "could not set timings\n");
+		return;
+	}
+
+	dssdrv->set_timings(dssdev, &timings);
+}
+
+/* flush an area of the framebuffer (in case of manual update display that
+ * is not automatically flushed)
+ */
+void omap_connector_flush(struct drm_connector *connector,
+		int x, int y, int w, int h)
+{
+	struct omap_connector *omap_connector = to_omap_connector(connector);
+
+	/* TODO: enable when supported in dss */
+	VERB("%s: %d,%d, %dx%d", omap_connector->dssdev->name, x, y, w, h);
+}
+
+/* initialize connector */
+struct drm_connector *omap_connector_init(struct drm_device *dev,
+		int connector_type, struct omap_dss_device *dssdev)
+{
+	struct drm_connector *connector = NULL;
+	struct omap_connector *omap_connector;
+
+	DBG("%s", dssdev->name);
+
+	omap_dss_get_device(dssdev);
+
+	omap_connector = kzalloc(sizeof(struct omap_connector), GFP_KERNEL);
+	if (!omap_connector) {
+		dev_err(dev->dev, "could not allocate connector\n");
+		goto fail;
+	}
+
+	omap_connector->dssdev = dssdev;
+	connector = &omap_connector->base;
+
+	drm_connector_init(dev, connector, &omap_connector_funcs,
+				connector_type);
+	drm_connector_helper_add(connector, &omap_connector_helper_funcs);
+
+#if 0 /* enable when dss2 supports hotplug */
+	if (dssdev->caps & OMAP_DSS_DISPLAY_CAP_HPD)
+		connector->polled = 0;
+	else
+#endif
+		connector->polled = DRM_CONNECTOR_POLL_CONNECT |
+				DRM_CONNECTOR_POLL_DISCONNECT;
+
+	connector->interlace_allowed = 1;
+	connector->doublescan_allowed = 0;
+
+	drm_sysfs_connector_add(connector);
+
+	return connector;
+
+fail:
+	if (connector) {
+		omap_connector_destroy(connector);
+	}
+
+	return NULL;
+}
diff --git a/drivers/staging/omapdrm/omap_crtc.c b/drivers/staging/omapdrm/omap_crtc.c
new file mode 100644
index 000000000000..cffdf5e12394
--- /dev/null
+++ b/drivers/staging/omapdrm/omap_crtc.c
@@ -0,0 +1,326 @@
+/*
+ * drivers/staging/omapdrm/omap_crtc.c
+ *
+ * Copyright (C) 2011 Texas Instruments
+ * Author: Rob Clark <rob@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "omap_drv.h"
+
+#include "drm_mode.h"
+#include "drm_crtc.h"
+#include "drm_crtc_helper.h"
+
+#define to_omap_crtc(x) container_of(x, struct omap_crtc, base)
+
+struct omap_crtc {
+	struct drm_crtc base;
+	struct omap_overlay *ovl;
+	struct omap_overlay_info info;
+	int id;
+
+	/* if there is a pending flip, this will be non-null: */
+	struct drm_pending_vblank_event *event;
+};
+
+/* push changes down to dss2 */
+static int commit(struct drm_crtc *crtc)
+{
+	struct drm_device *dev = crtc->dev;
+	struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
+	struct omap_overlay *ovl = omap_crtc->ovl;
+	struct omap_overlay_info *info = &omap_crtc->info;
+	int ret;
+
+	DBG("%s", omap_crtc->ovl->name);
+	DBG("%dx%d -> %dx%d (%d)", info->width, info->height, info->out_width,
+			info->out_height, info->screen_width);
+	DBG("%d,%d %08x", info->pos_x, info->pos_y, info->paddr);
+
+	/* NOTE: do we want to do this at all here, or just wait
+	 * for dpms(ON) since other CRTC's may not have their mode
+	 * set yet, so fb dimensions may still change..
+	 */
+	ret = ovl->set_overlay_info(ovl, info);
+	if (ret) {
+		dev_err(dev->dev, "could not set overlay info\n");
+		return ret;
+	}
+
+	/* our encoder doesn't necessarily get a commit() after this, in
+	 * particular in the dpms() and mode_set_base() cases, so force the
+	 * manager to update:
+	 *
+	 * could this be in the encoder somehow?
+	 */
+	if (ovl->manager) {
+		ret = ovl->manager->apply(ovl->manager);
+		if (ret) {
+			dev_err(dev->dev, "could not apply settings\n");
+			return ret;
+		}
+	}
+
+	if (info->enabled) {
+		omap_framebuffer_flush(crtc->fb, crtc->x, crtc->y,
+				crtc->fb->width, crtc->fb->height);
+	}
+
+	return 0;
+}
+
+/* update parameters that are dependent on the framebuffer dimensions and
+ * position within the fb that this crtc scans out from. This is called
+ * when framebuffer dimensions or x,y base may have changed, either due
+ * to our mode, or a change in another crtc that is scanning out of the
+ * same fb.
+ */
+static void update_scanout(struct drm_crtc *crtc)
+{
+	struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
+	dma_addr_t paddr;
+	unsigned int screen_width;
+
+	omap_framebuffer_get_buffer(crtc->fb, crtc->x, crtc->y,
+			NULL, &paddr, &screen_width);
+
+	DBG("%s: %d,%d: %08x (%d)", omap_crtc->ovl->name,
+			crtc->x, crtc->y, (u32)paddr, screen_width);
+
+	omap_crtc->info.paddr = paddr;
+	omap_crtc->info.screen_width = screen_width;
+}
+
+static void omap_crtc_gamma_set(struct drm_crtc *crtc,
+		u16 *red, u16 *green, u16 *blue, uint32_t start, uint32_t size)
+{
+	struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
+	DBG("%s", omap_crtc->ovl->name);
+}
+
+static void omap_crtc_destroy(struct drm_crtc *crtc)
+{
+	struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
+	DBG("%s", omap_crtc->ovl->name);
+	drm_crtc_cleanup(crtc);
+	kfree(omap_crtc);
+}
+
+static void omap_crtc_dpms(struct drm_crtc *crtc, int mode)
+{
+	struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
+
+	DBG("%s: %d", omap_crtc->ovl->name, mode);
+
+	if (mode == DRM_MODE_DPMS_ON) {
+		update_scanout(crtc);
+		omap_crtc->info.enabled = true;
+	} else {
+		omap_crtc->info.enabled = false;
+	}
+
+	WARN_ON(commit(crtc));
+}
+
+static bool omap_crtc_mode_fixup(struct drm_crtc *crtc,
+				  struct drm_display_mode *mode,
+				  struct drm_display_mode *adjusted_mode)
+{
+	struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
+	DBG("%s", omap_crtc->ovl->name);
+	return true;
+}
+
+static int omap_crtc_mode_set(struct drm_crtc *crtc,
+			       struct drm_display_mode *mode,
+			       struct drm_display_mode *adjusted_mode,
+			       int x, int y,
+			       struct drm_framebuffer *old_fb)
+{
+	struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
+
+	DBG("%s: %d,%d: %dx%d", omap_crtc->ovl->name, x, y,
+			mode->hdisplay, mode->vdisplay);
+
+	/* just use adjusted mode */
+	mode = adjusted_mode;
+
+	omap_crtc->info.width = mode->hdisplay;
+	omap_crtc->info.height = mode->vdisplay;
+	omap_crtc->info.out_width = mode->hdisplay;
+	omap_crtc->info.out_height = mode->vdisplay;
+	omap_crtc->info.color_mode = OMAP_DSS_COLOR_RGB24U;
+	omap_crtc->info.rotation_type = OMAP_DSS_ROT_DMA;
+	omap_crtc->info.rotation = OMAP_DSS_ROT_0;
+	omap_crtc->info.global_alpha = 0xff;
+	omap_crtc->info.mirror = 0;
+	omap_crtc->info.mirror = 0;
+	omap_crtc->info.pos_x = 0;
+	omap_crtc->info.pos_y = 0;
+#if 0 /* re-enable when these are available in DSS2 driver */
+	omap_crtc->info.zorder = 3;        /* GUI in the front, video behind */
+	omap_crtc->info.min_x_decim = 1;
+	omap_crtc->info.max_x_decim = 1;
+	omap_crtc->info.min_y_decim = 1;
+	omap_crtc->info.max_y_decim = 1;
+#endif
+
+	update_scanout(crtc);
+
+	return 0;
+}
+
+static void omap_crtc_prepare(struct drm_crtc *crtc)
+{
+	struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
+	struct omap_overlay *ovl = omap_crtc->ovl;
+
+	DBG("%s", omap_crtc->ovl->name);
+
+	ovl->get_overlay_info(ovl, &omap_crtc->info);
+
+	omap_crtc_dpms(crtc, DRM_MODE_DPMS_OFF);
+}
+
+static void omap_crtc_commit(struct drm_crtc *crtc)
+{
+	struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
+	DBG("%s", omap_crtc->ovl->name);
+	omap_crtc_dpms(crtc, DRM_MODE_DPMS_ON);
+}
+
+static int omap_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
+		    struct drm_framebuffer *old_fb)
+{
+	struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
+
+	DBG("%s %d,%d: fb=%p", omap_crtc->ovl->name, x, y, old_fb);
+
+	update_scanout(crtc);
+
+	return commit(crtc);
+}
+
+static void omap_crtc_load_lut(struct drm_crtc *crtc)
+{
+	struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
+	DBG("%s", omap_crtc->ovl->name);
+}
+
+static void page_flip_cb(void *arg)
+{
+	struct drm_crtc *crtc = arg;
+	struct drm_device *dev = crtc->dev;
+	struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
+	struct drm_pending_vblank_event *event = omap_crtc->event;
+	struct timeval now;
+	unsigned long flags;
+
+	WARN_ON(!event);
+
+	omap_crtc->event = NULL;
+
+	update_scanout(crtc);
+	WARN_ON(commit(crtc));
+
+	/* wakeup userspace */
+	/* TODO: this should happen *after* flip in vsync IRQ handler */
+	if (event) {
+		spin_lock_irqsave(&dev->event_lock, flags);
+		event->event.sequence = drm_vblank_count_and_time(
+				dev, omap_crtc->id, &now);
+		event->event.tv_sec = now.tv_sec;
+		event->event.tv_usec = now.tv_usec;
+		list_add_tail(&event->base.link,
+				&event->base.file_priv->event_list);
+		wake_up_interruptible(&event->base.file_priv->event_wait);
+		spin_unlock_irqrestore(&dev->event_lock, flags);
+	}
+}
+
+static int omap_crtc_page_flip_locked(struct drm_crtc *crtc,
+		 struct drm_framebuffer *fb,
+		 struct drm_pending_vblank_event *event)
+{
+	struct drm_device *dev = crtc->dev;
+	struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
+
+	DBG("%d -> %d", crtc->fb ? crtc->fb->base.id : -1, fb->base.id);
+
+	if (omap_crtc->event) {
+		dev_err(dev->dev, "already a pending flip\n");
+		return -EINVAL;
+	}
+
+	crtc->fb = fb;
+	omap_crtc->event = event;
+
+	omap_gem_op_async(omap_framebuffer_bo(fb), OMAP_GEM_READ,
+			page_flip_cb, crtc);
+
+	return 0;
+}
+
+static const struct drm_crtc_funcs omap_crtc_funcs = {
+	.gamma_set = omap_crtc_gamma_set,
+	.set_config = drm_crtc_helper_set_config,
+	.destroy = omap_crtc_destroy,
+	.page_flip = omap_crtc_page_flip_locked,
+};
+
+static const struct drm_crtc_helper_funcs omap_crtc_helper_funcs = {
+	.dpms = omap_crtc_dpms,
+	.mode_fixup = omap_crtc_mode_fixup,
+	.mode_set = omap_crtc_mode_set,
+	.prepare = omap_crtc_prepare,
+	.commit = omap_crtc_commit,
+	.mode_set_base = omap_crtc_mode_set_base,
+	.load_lut = omap_crtc_load_lut,
+};
+
+struct omap_overlay *omap_crtc_get_overlay(struct drm_crtc *crtc)
+{
+	struct omap_crtc *omap_crtc = to_omap_crtc(crtc);
+	return omap_crtc->ovl;
+}
+
+/* initialize crtc */
+struct drm_crtc *omap_crtc_init(struct drm_device *dev,
+		struct omap_overlay *ovl, int id)
+{
+	struct drm_crtc *crtc = NULL;
+	struct omap_crtc *omap_crtc = kzalloc(sizeof(*omap_crtc), GFP_KERNEL);
+
+	DBG("%s", ovl->name);
+
+	if (!omap_crtc) {
+		dev_err(dev->dev, "could not allocate CRTC\n");
+		goto fail;
+	}
+
+	omap_crtc->ovl = ovl;
+	omap_crtc->id = id;
+	crtc = &omap_crtc->base;
+	drm_crtc_init(dev, crtc, &omap_crtc_funcs);
+	drm_crtc_helper_add(crtc, &omap_crtc_helper_funcs);
+
+	return crtc;
+
+fail:
+	if (crtc) {
+		omap_crtc_destroy(crtc);
+	}
+	return NULL;
+}
diff --git a/drivers/staging/omapdrm/omap_debugfs.c b/drivers/staging/omapdrm/omap_debugfs.c
new file mode 100644
index 000000000000..da920dfdc59c
--- /dev/null
+++ b/drivers/staging/omapdrm/omap_debugfs.c
@@ -0,0 +1,42 @@
+/*
+ * drivers/staging/omapdrm/omap_debugfs.c
+ *
+ * Copyright (C) 2011 Texas Instruments
+ * Author: Rob Clark <rob.clark@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "omap_drv.h"
+#include "omap_dmm_tiler.h"
+
+#ifdef CONFIG_DEBUG_FS
+
+static struct drm_info_list omap_debugfs_list[] = {
+	{"tiler_map", tiler_map_show, 0},
+};
+
+int omap_debugfs_init(struct drm_minor *minor)
+{
+	return drm_debugfs_create_files(omap_debugfs_list,
+			ARRAY_SIZE(omap_debugfs_list),
+			minor->debugfs_root, minor);
+}
+
+void omap_debugfs_cleanup(struct drm_minor *minor)
+{
+	drm_debugfs_remove_files(omap_debugfs_list,
+			ARRAY_SIZE(omap_debugfs_list), minor);
+}
+
+#endif
diff --git a/drivers/staging/omapdrm/omap_dmm_priv.h b/drivers/staging/omapdrm/omap_dmm_priv.h
new file mode 100644
index 000000000000..2f529ab4b7c7
--- /dev/null
+++ b/drivers/staging/omapdrm/omap_dmm_priv.h
@@ -0,0 +1,187 @@
+/*
+ *
+ * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
+ * Author: Rob Clark <rob@ti.com>
+ *         Andy Gross <andy.gross@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+#ifndef OMAP_DMM_PRIV_H
+#define OMAP_DMM_PRIV_H
+
+#define DMM_REVISION          0x000
+#define DMM_HWINFO            0x004
+#define DMM_LISA_HWINFO       0x008
+#define DMM_DMM_SYSCONFIG     0x010
+#define DMM_LISA_LOCK         0x01C
+#define DMM_LISA_MAP__0       0x040
+#define DMM_LISA_MAP__1       0x044
+#define DMM_TILER_HWINFO      0x208
+#define DMM_TILER_OR__0       0x220
+#define DMM_TILER_OR__1       0x224
+#define DMM_PAT_HWINFO        0x408
+#define DMM_PAT_GEOMETRY      0x40C
+#define DMM_PAT_CONFIG        0x410
+#define DMM_PAT_VIEW__0       0x420
+#define DMM_PAT_VIEW__1       0x424
+#define DMM_PAT_VIEW_MAP__0   0x440
+#define DMM_PAT_VIEW_MAP_BASE 0x460
+#define DMM_PAT_IRQ_EOI       0x478
+#define DMM_PAT_IRQSTATUS_RAW 0x480
+#define DMM_PAT_IRQSTATUS     0x490
+#define DMM_PAT_IRQENABLE_SET 0x4A0
+#define DMM_PAT_IRQENABLE_CLR 0x4B0
+#define DMM_PAT_STATUS__0     0x4C0
+#define DMM_PAT_STATUS__1     0x4C4
+#define DMM_PAT_STATUS__2     0x4C8
+#define DMM_PAT_STATUS__3     0x4CC
+#define DMM_PAT_DESCR__0      0x500
+#define DMM_PAT_DESCR__1      0x510
+#define DMM_PAT_DESCR__2      0x520
+#define DMM_PAT_DESCR__3      0x530
+#define DMM_PEG_HWINFO        0x608
+#define DMM_PEG_PRIO          0x620
+#define DMM_PEG_PRIO_PAT      0x640
+
+#define DMM_IRQSTAT_DST			(1<<0)
+#define DMM_IRQSTAT_LST			(1<<1)
+#define DMM_IRQSTAT_ERR_INV_DSC		(1<<2)
+#define DMM_IRQSTAT_ERR_INV_DATA	(1<<3)
+#define DMM_IRQSTAT_ERR_UPD_AREA	(1<<4)
+#define DMM_IRQSTAT_ERR_UPD_CTRL	(1<<5)
+#define DMM_IRQSTAT_ERR_UPD_DATA	(1<<6)
+#define DMM_IRQSTAT_ERR_LUT_MISS	(1<<7)
+
+#define DMM_IRQSTAT_ERR_MASK	(DMM_IRQ_STAT_ERR_INV_DSC | \
+				DMM_IRQ_STAT_ERR_INV_DATA | \
+				DMM_IRQ_STAT_ERR_UPD_AREA | \
+				DMM_IRQ_STAT_ERR_UPD_CTRL | \
+				DMM_IRQ_STAT_ERR_UPD_DATA | \
+				DMM_IRQ_STAT_ERR_LUT_MISS)
+
+#define DMM_PATSTATUS_READY		(1<<0)
+#define DMM_PATSTATUS_VALID		(1<<1)
+#define DMM_PATSTATUS_RUN		(1<<2)
+#define DMM_PATSTATUS_DONE		(1<<3)
+#define DMM_PATSTATUS_LINKED		(1<<4)
+#define DMM_PATSTATUS_BYPASSED		(1<<7)
+#define DMM_PATSTATUS_ERR_INV_DESCR	(1<<10)
+#define DMM_PATSTATUS_ERR_INV_DATA	(1<<11)
+#define DMM_PATSTATUS_ERR_UPD_AREA	(1<<12)
+#define DMM_PATSTATUS_ERR_UPD_CTRL	(1<<13)
+#define DMM_PATSTATUS_ERR_UPD_DATA	(1<<14)
+#define DMM_PATSTATUS_ERR_ACCESS	(1<<15)
+
+/* note: don't treat DMM_PATSTATUS_ERR_ACCESS as an error */
+#define DMM_PATSTATUS_ERR	(DMM_PATSTATUS_ERR_INV_DESCR | \
+				DMM_PATSTATUS_ERR_INV_DATA | \
+				DMM_PATSTATUS_ERR_UPD_AREA | \
+				DMM_PATSTATUS_ERR_UPD_CTRL | \
+				DMM_PATSTATUS_ERR_UPD_DATA)
+
+
+
+enum {
+	PAT_STATUS,
+	PAT_DESCR
+};
+
+struct pat_ctrl {
+	u32 start:4;
+	u32 dir:4;
+	u32 lut_id:8;
+	u32 sync:12;
+	u32 ini:4;
+};
+
+struct pat {
+	uint32_t next_pa;
+	struct pat_area area;
+	struct pat_ctrl ctrl;
+	uint32_t data_pa;
+};
+
+#define DMM_FIXED_RETRY_COUNT 1000
+
+/* create refill buffer big enough to refill all slots, plus 3 descriptors..
+ * 3 descriptors is probably the worst-case for # of 2d-slices in a 1d area,
+ * but I guess you don't hit that worst case at the same time as full area
+ * refill
+ */
+#define DESCR_SIZE 128
+#define REFILL_BUFFER_SIZE ((4 * 128 * 256) + (3 * DESCR_SIZE))
+
+struct dmm;
+
+struct dmm_txn {
+	void *engine_handle;
+	struct tcm *tcm;
+
+	uint8_t *current_va;
+	dma_addr_t current_pa;
+
+	struct pat *last_pat;
+};
+
+struct refill_engine {
+	int id;
+	struct dmm *dmm;
+	struct tcm *tcm;
+
+	uint8_t *refill_va;
+	dma_addr_t refill_pa;
+
+	/* only one trans per engine for now */
+	struct dmm_txn txn;
+
+	/* offset to lut associated with container */
+	u32 *lut_offset;
+
+	wait_queue_head_t wait_for_refill;
+
+	struct list_head idle_node;
+};
+
+struct dmm {
+	struct device *dev;
+	void __iomem *base;
+	int irq;
+
+	struct page *dummy_page;
+	dma_addr_t dummy_pa;
+
+	void *refill_va;
+	dma_addr_t refill_pa;
+
+	/* refill engines */
+	struct semaphore engine_sem;
+	struct list_head idle_head;
+	struct refill_engine *engines;
+	int num_engines;
+
+	/* container information */
+	int container_width;
+	int container_height;
+	int lut_width;
+	int lut_height;
+	int num_lut;
+
+	/* array of LUT - TCM containers */
+	struct tcm **tcm;
+
+	/* LUT table storage */
+	u32 *lut;
+
+	/* allocation list and lock */
+	struct list_head alloc_head;
+	spinlock_t list_lock;
+};
+
+#endif
diff --git a/drivers/staging/omapdrm/omap_dmm_tiler.c b/drivers/staging/omapdrm/omap_dmm_tiler.c
new file mode 100644
index 000000000000..852d9440f725
--- /dev/null
+++ b/drivers/staging/omapdrm/omap_dmm_tiler.c
@@ -0,0 +1,830 @@
+/*
+ * DMM IOMMU driver support functions for TI OMAP processors.
+ *
+ * Author: Rob Clark <rob@ti.com>
+ *         Andy Gross <andy.gross@ti.com>
+ *
+ * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+#include <linux/init.h>
+#include <linux/module.h>
+#include <linux/platform_device.h> /* platform_device() */
+#include <linux/errno.h>
+#include <linux/sched.h>
+#include <linux/wait.h>
+#include <linux/interrupt.h>
+#include <linux/dma-mapping.h>
+#include <linux/slab.h>
+#include <linux/vmalloc.h>
+#include <linux/delay.h>
+#include <linux/mm.h>
+#include <linux/time.h>
+#include <linux/list.h>
+#include <linux/semaphore.h>
+
+#include "omap_dmm_tiler.h"
+#include "omap_dmm_priv.h"
+
+/* mappings for associating views to luts */
+static struct tcm *containers[TILFMT_NFORMATS];
+static struct dmm *omap_dmm;
+
+/* Geometry table */
+#define GEOM(xshift, yshift, bytes_per_pixel) { \
+		.x_shft = (xshift), \
+		.y_shft = (yshift), \
+		.cpp    = (bytes_per_pixel), \
+		.slot_w = 1 << (SLOT_WIDTH_BITS - (xshift)), \
+		.slot_h = 1 << (SLOT_HEIGHT_BITS - (yshift)), \
+	}
+
+static const struct {
+	uint32_t x_shft;	/* unused X-bits (as part of bpp) */
+	uint32_t y_shft;	/* unused Y-bits (as part of bpp) */
+	uint32_t cpp;		/* bytes/chars per pixel */
+	uint32_t slot_w;	/* width of each slot (in pixels) */
+	uint32_t slot_h;	/* height of each slot (in pixels) */
+} geom[TILFMT_NFORMATS] = {
+		[TILFMT_8BIT]  = GEOM(0, 0, 1),
+		[TILFMT_16BIT] = GEOM(0, 1, 2),
+		[TILFMT_32BIT] = GEOM(1, 1, 4),
+		[TILFMT_PAGE]  = GEOM(SLOT_WIDTH_BITS, SLOT_HEIGHT_BITS, 1),
+};
+
+
+/* lookup table for registers w/ per-engine instances */
+static const uint32_t reg[][4] = {
+		[PAT_STATUS] = {DMM_PAT_STATUS__0, DMM_PAT_STATUS__1,
+				DMM_PAT_STATUS__2, DMM_PAT_STATUS__3},
+		[PAT_DESCR]  = {DMM_PAT_DESCR__0, DMM_PAT_DESCR__1,
+				DMM_PAT_DESCR__2, DMM_PAT_DESCR__3},
+};
+
+/* simple allocator to grab next 16 byte aligned memory from txn */
+static void *alloc_dma(struct dmm_txn *txn, size_t sz, dma_addr_t *pa)
+{
+	void *ptr;
+	struct refill_engine *engine = txn->engine_handle;
+
+	/* dmm programming requires 16 byte aligned addresses */
+	txn->current_pa = round_up(txn->current_pa, 16);
+	txn->current_va = (void *)round_up((long)txn->current_va, 16);
+
+	ptr = txn->current_va;
+	*pa = txn->current_pa;
+
+	txn->current_pa += sz;
+	txn->current_va += sz;
+
+	BUG_ON((txn->current_va - engine->refill_va) > REFILL_BUFFER_SIZE);
+
+	return ptr;
+}
+
+/* check status and spin until wait_mask comes true */
+static int wait_status(struct refill_engine *engine, uint32_t wait_mask)
+{
+	struct dmm *dmm = engine->dmm;
+	uint32_t r = 0, err, i;
+
+	i = DMM_FIXED_RETRY_COUNT;
+	while (true) {
+		r = readl(dmm->base + reg[PAT_STATUS][engine->id]);
+		err = r & DMM_PATSTATUS_ERR;
+		if (err)
+			return -EFAULT;
+
+		if ((r & wait_mask) == wait_mask)
+			break;
+
+		if (--i == 0)
+			return -ETIMEDOUT;
+
+		udelay(1);
+	}
+
+	return 0;
+}
+
+irqreturn_t omap_dmm_irq_handler(int irq, void *arg)
+{
+	struct dmm *dmm = arg;
+	uint32_t status = readl(dmm->base + DMM_PAT_IRQSTATUS);
+	int i;
+
+	/* ack IRQ */
+	writel(status, dmm->base + DMM_PAT_IRQSTATUS);
+
+	for (i = 0; i < dmm->num_engines; i++) {
+		if (status & DMM_IRQSTAT_LST)
+			wake_up_interruptible(&dmm->engines[i].wait_for_refill);
+
+		status >>= 8;
+	}
+
+	return IRQ_HANDLED;
+}
+
+/**
+ * Get a handle for a DMM transaction
+ */
+static struct dmm_txn *dmm_txn_init(struct dmm *dmm, struct tcm *tcm)
+{
+	struct dmm_txn *txn = NULL;
+	struct refill_engine *engine = NULL;
+
+	down(&dmm->engine_sem);
+
+	/* grab an idle engine */
+	spin_lock(&dmm->list_lock);
+	if (!list_empty(&dmm->idle_head)) {
+		engine = list_entry(dmm->idle_head.next, struct refill_engine,
+					idle_node);
+		list_del(&engine->idle_node);
+	}
+	spin_unlock(&dmm->list_lock);
+
+	BUG_ON(!engine);
+
+	txn = &engine->txn;
+	engine->tcm = tcm;
+	txn->engine_handle = engine;
+	txn->last_pat = NULL;
+	txn->current_va = engine->refill_va;
+	txn->current_pa = engine->refill_pa;
+
+	return txn;
+}
+
+/**
+ * Add region to DMM transaction.  If pages or pages[i] is NULL, then the
+ * corresponding slot is cleared (ie. dummy_pa is programmed)
+ */
+static int dmm_txn_append(struct dmm_txn *txn, struct pat_area *area,
+		struct page **pages, uint32_t npages, uint32_t roll)
+{
+	dma_addr_t pat_pa = 0;
+	uint32_t *data;
+	struct pat *pat;
+	struct refill_engine *engine = txn->engine_handle;
+	int columns = (1 + area->x1 - area->x0);
+	int rows = (1 + area->y1 - area->y0);
+	int i = columns*rows;
+	u32 *lut = omap_dmm->lut + (engine->tcm->lut_id * omap_dmm->lut_width *
+			omap_dmm->lut_height) +
+			(area->y0 * omap_dmm->lut_width) + area->x0;
+
+	pat = alloc_dma(txn, sizeof(struct pat), &pat_pa);
+
+	if (txn->last_pat)
+		txn->last_pat->next_pa = (uint32_t)pat_pa;
+
+	pat->area = *area;
+	pat->ctrl = (struct pat_ctrl){
+			.start = 1,
+			.lut_id = engine->tcm->lut_id,
+		};
+
+	data = alloc_dma(txn, 4*i, &pat->data_pa);
+
+	while (i--) {
+		int n = i + roll;
+		if (n >= npages)
+			n -= npages;
+		data[i] = (pages && pages[n]) ?
+			page_to_phys(pages[n]) : engine->dmm->dummy_pa;
+	}
+
+	/* fill in lut with new addresses */
+	for (i = 0; i < rows; i++, lut += omap_dmm->lut_width)
+		memcpy(lut, &data[i*columns], columns * sizeof(u32));
+
+	txn->last_pat = pat;
+
+	return 0;
+}
+
+/**
+ * Commit the DMM transaction.
+ */
+static int dmm_txn_commit(struct dmm_txn *txn, bool wait)
+{
+	int ret = 0;
+	struct refill_engine *engine = txn->engine_handle;
+	struct dmm *dmm = engine->dmm;
+
+	if (!txn->last_pat) {
+		dev_err(engine->dmm->dev, "need at least one txn\n");
+		ret = -EINVAL;
+		goto cleanup;
+	}
+
+	txn->last_pat->next_pa = 0;
+
+	/* write to PAT_DESCR to clear out any pending transaction */
+	writel(0x0, dmm->base + reg[PAT_DESCR][engine->id]);
+
+	/* wait for engine ready: */
+	ret = wait_status(engine, DMM_PATSTATUS_READY);
+	if (ret) {
+		ret = -EFAULT;
+		goto cleanup;
+	}
+
+	/* kick reload */
+	writel(engine->refill_pa,
+		dmm->base + reg[PAT_DESCR][engine->id]);
+
+	if (wait) {
+		if (wait_event_interruptible_timeout(engine->wait_for_refill,
+				wait_status(engine, DMM_PATSTATUS_READY) == 0,
+				msecs_to_jiffies(1)) <= 0) {
+			dev_err(dmm->dev, "timed out waiting for done\n");
+			ret = -ETIMEDOUT;
+		}
+	}
+
+cleanup:
+	spin_lock(&dmm->list_lock);
+	list_add(&engine->idle_node, &dmm->idle_head);
+	spin_unlock(&dmm->list_lock);
+
+	up(&omap_dmm->engine_sem);
+	return ret;
+}
+
+/*
+ * DMM programming
+ */
+static int fill(struct tcm_area *area, struct page **pages,
+		uint32_t npages, uint32_t roll, bool wait)
+{
+	int ret = 0;
+	struct tcm_area slice, area_s;
+	struct dmm_txn *txn;
+
+	txn = dmm_txn_init(omap_dmm, area->tcm);
+	if (IS_ERR_OR_NULL(txn))
+		return PTR_ERR(txn);
+
+	tcm_for_each_slice(slice, *area, area_s) {
+		struct pat_area p_area = {
+				.x0 = slice.p0.x,  .y0 = slice.p0.y,
+				.x1 = slice.p1.x,  .y1 = slice.p1.y,
+		};
+
+		ret = dmm_txn_append(txn, &p_area, pages, npages, roll);
+		if (ret)
+			goto fail;
+
+		roll += tcm_sizeof(slice);
+	}
+
+	ret = dmm_txn_commit(txn, wait);
+
+fail:
+	return ret;
+}
+
+/*
+ * Pin/unpin
+ */
+
+/* note: slots for which pages[i] == NULL are filled w/ dummy page
+ */
+int tiler_pin(struct tiler_block *block, struct page **pages,
+		uint32_t npages, uint32_t roll, bool wait)
+{
+	int ret;
+
+	ret = fill(&block->area, pages, npages, roll, wait);
+
+	if (ret)
+		tiler_unpin(block);
+
+	return ret;
+}
+
+int tiler_unpin(struct tiler_block *block)
+{
+	return fill(&block->area, NULL, 0, 0, false);
+}
+
+/*
+ * Reserve/release
+ */
+struct tiler_block *tiler_reserve_2d(enum tiler_fmt fmt, uint16_t w,
+		uint16_t h, uint16_t align)
+{
+	struct tiler_block *block = kzalloc(sizeof(*block), GFP_KERNEL);
+	u32 min_align = 128;
+	int ret;
+
+	BUG_ON(!validfmt(fmt));
+
+	/* convert width/height to slots */
+	w = DIV_ROUND_UP(w, geom[fmt].slot_w);
+	h = DIV_ROUND_UP(h, geom[fmt].slot_h);
+
+	/* convert alignment to slots */
+	min_align = max(min_align, (geom[fmt].slot_w * geom[fmt].cpp));
+	align = ALIGN(align, min_align);
+	align /= geom[fmt].slot_w * geom[fmt].cpp;
+
+	block->fmt = fmt;
+
+	ret = tcm_reserve_2d(containers[fmt], w, h, align, &block->area);
+	if (ret) {
+		kfree(block);
+		return 0;
+	}
+
+	/* add to allocation list */
+	spin_lock(&omap_dmm->list_lock);
+	list_add(&block->alloc_node, &omap_dmm->alloc_head);
+	spin_unlock(&omap_dmm->list_lock);
+
+	return block;
+}
+
+struct tiler_block *tiler_reserve_1d(size_t size)
+{
+	struct tiler_block *block = kzalloc(sizeof(*block), GFP_KERNEL);
+	int num_pages = (size + PAGE_SIZE - 1) >> PAGE_SHIFT;
+
+	if (!block)
+		return 0;
+
+	block->fmt = TILFMT_PAGE;
+
+	if (tcm_reserve_1d(containers[TILFMT_PAGE], num_pages,
+				&block->area)) {
+		kfree(block);
+		return 0;
+	}
+
+	spin_lock(&omap_dmm->list_lock);
+	list_add(&block->alloc_node, &omap_dmm->alloc_head);
+	spin_unlock(&omap_dmm->list_lock);
+
+	return block;
+}
+
+/* note: if you have pin'd pages, you should have already unpin'd first! */
+int tiler_release(struct tiler_block *block)
+{
+	int ret = tcm_free(&block->area);
+
+	if (block->area.tcm)
+		dev_err(omap_dmm->dev, "failed to release block\n");
+
+	spin_lock(&omap_dmm->list_lock);
+	list_del(&block->alloc_node);
+	spin_unlock(&omap_dmm->list_lock);
+
+	kfree(block);
+	return ret;
+}
+
+/*
+ * Utils
+ */
+
+/* calculate the tiler space address of a pixel in a view orientation */
+static u32 tiler_get_address(u32 orient, enum tiler_fmt fmt, u32 x, u32 y)
+{
+	u32 x_bits, y_bits, tmp, x_mask, y_mask, alignment;
+
+	x_bits = CONT_WIDTH_BITS - geom[fmt].x_shft;
+	y_bits = CONT_HEIGHT_BITS - geom[fmt].y_shft;
+	alignment = geom[fmt].x_shft + geom[fmt].y_shft;
+
+	/* validate coordinate */
+	x_mask = MASK(x_bits);
+	y_mask = MASK(y_bits);
+
+	if (x < 0 || x > x_mask || y < 0 || y > y_mask)
+		return 0;
+
+	/* account for mirroring */
+	if (orient & MASK_X_INVERT)
+		x ^= x_mask;
+	if (orient & MASK_Y_INVERT)
+		y ^= y_mask;
+
+	/* get coordinate address */
+	if (orient & MASK_XY_FLIP)
+		tmp = ((x << y_bits) + y);
+	else
+		tmp = ((y << x_bits) + x);
+
+	return TIL_ADDR((tmp << alignment), orient, fmt);
+}
+
+dma_addr_t tiler_ssptr(struct tiler_block *block)
+{
+	BUG_ON(!validfmt(block->fmt));
+
+	return TILVIEW_8BIT + tiler_get_address(0, block->fmt,
+			block->area.p0.x * geom[block->fmt].slot_w,
+			block->area.p0.y * geom[block->fmt].slot_h);
+}
+
+void tiler_align(enum tiler_fmt fmt, uint16_t *w, uint16_t *h)
+{
+	BUG_ON(!validfmt(fmt));
+	*w = round_up(*w, geom[fmt].slot_w);
+	*h = round_up(*h, geom[fmt].slot_h);
+}
+
+uint32_t tiler_stride(enum tiler_fmt fmt)
+{
+	BUG_ON(!validfmt(fmt));
+
+	return 1 << (CONT_WIDTH_BITS + geom[fmt].y_shft);
+}
+
+size_t tiler_size(enum tiler_fmt fmt, uint16_t w, uint16_t h)
+{
+	tiler_align(fmt, &w, &h);
+	return geom[fmt].cpp * w * h;
+}
+
+size_t tiler_vsize(enum tiler_fmt fmt, uint16_t w, uint16_t h)
+{
+	BUG_ON(!validfmt(fmt));
+	return round_up(geom[fmt].cpp * w, PAGE_SIZE) * h;
+}
+
+int omap_dmm_remove(void)
+{
+	struct tiler_block *block, *_block;
+	int i;
+
+	if (omap_dmm) {
+		/* free all area regions */
+		spin_lock(&omap_dmm->list_lock);
+		list_for_each_entry_safe(block, _block, &omap_dmm->alloc_head,
+					alloc_node) {
+			list_del(&block->alloc_node);
+			kfree(block);
+		}
+		spin_unlock(&omap_dmm->list_lock);
+
+		for (i = 0; i < omap_dmm->num_lut; i++)
+			if (omap_dmm->tcm && omap_dmm->tcm[i])
+				omap_dmm->tcm[i]->deinit(omap_dmm->tcm[i]);
+		kfree(omap_dmm->tcm);
+
+		kfree(omap_dmm->engines);
+		if (omap_dmm->refill_va)
+			dma_free_coherent(omap_dmm->dev,
+				REFILL_BUFFER_SIZE * omap_dmm->num_engines,
+				omap_dmm->refill_va,
+				omap_dmm->refill_pa);
+		if (omap_dmm->dummy_page)
+			__free_page(omap_dmm->dummy_page);
+
+		vfree(omap_dmm->lut);
+
+		if (omap_dmm->irq != -1)
+			free_irq(omap_dmm->irq, omap_dmm);
+
+		kfree(omap_dmm);
+	}
+
+	return 0;
+}
+
+int omap_dmm_init(struct drm_device *dev)
+{
+	int ret = -EFAULT, i;
+	struct tcm_area area = {0};
+	u32 hwinfo, pat_geom, lut_table_size;
+	struct omap_drm_platform_data *pdata = dev->dev->platform_data;
+
+	if (!pdata || !pdata->dmm_pdata) {
+		dev_err(dev->dev, "dmm platform data not present, skipping\n");
+		return ret;
+	}
+
+	omap_dmm = kzalloc(sizeof(*omap_dmm), GFP_KERNEL);
+	if (!omap_dmm) {
+		dev_err(dev->dev, "failed to allocate driver data section\n");
+		goto fail;
+	}
+
+	/* lookup hwmod data - base address and irq */
+	omap_dmm->base = pdata->dmm_pdata->base;
+	omap_dmm->irq = pdata->dmm_pdata->irq;
+	omap_dmm->dev = dev->dev;
+
+	if (!omap_dmm->base) {
+		dev_err(dev->dev, "failed to get dmm base address\n");
+		goto fail;
+	}
+
+	hwinfo = readl(omap_dmm->base + DMM_PAT_HWINFO);
+	omap_dmm->num_engines = (hwinfo >> 24) & 0x1F;
+	omap_dmm->num_lut = (hwinfo >> 16) & 0x1F;
+	omap_dmm->container_width = 256;
+	omap_dmm->container_height = 128;
+
+	/* read out actual LUT width and height */
+	pat_geom = readl(omap_dmm->base + DMM_PAT_GEOMETRY);
+	omap_dmm->lut_width = ((pat_geom >> 16) & 0xF) << 5;
+	omap_dmm->lut_height = ((pat_geom >> 24) & 0xF) << 5;
+
+	/* initialize DMM registers */
+	writel(0x88888888, omap_dmm->base + DMM_PAT_VIEW__0);
+	writel(0x88888888, omap_dmm->base + DMM_PAT_VIEW__1);
+	writel(0x80808080, omap_dmm->base + DMM_PAT_VIEW_MAP__0);
+	writel(0x80000000, omap_dmm->base + DMM_PAT_VIEW_MAP_BASE);
+	writel(0x88888888, omap_dmm->base + DMM_TILER_OR__0);
+	writel(0x88888888, omap_dmm->base + DMM_TILER_OR__1);
+
+	ret = request_irq(omap_dmm->irq, omap_dmm_irq_handler, IRQF_SHARED,
+				"omap_dmm_irq_handler", omap_dmm);
+
+	if (ret) {
+		dev_err(dev->dev, "couldn't register IRQ %d, error %d\n",
+			omap_dmm->irq, ret);
+		omap_dmm->irq = -1;
+		goto fail;
+	}
+
+	/* Enable all interrupts for each refill engine except
+	 * ERR_LUT_MISS<n> (which is just advisory, and we don't care
+	 * about because we want to be able to refill live scanout
+	 * buffers for accelerated pan/scroll) and FILL_DSC<n> which
+	 * we just generally don't care about.
+	 */
+	writel(0x7e7e7e7e, omap_dmm->base + DMM_PAT_IRQENABLE_SET);
+
+	lut_table_size = omap_dmm->lut_width * omap_dmm->lut_height *
+			omap_dmm->num_lut;
+
+	omap_dmm->lut = vmalloc(lut_table_size * sizeof(*omap_dmm->lut));
+	if (!omap_dmm->lut) {
+		dev_err(dev->dev, "could not allocate lut table\n");
+		ret = -ENOMEM;
+		goto fail;
+	}
+
+	omap_dmm->dummy_page = alloc_page(GFP_KERNEL | __GFP_DMA32);
+	if (!omap_dmm->dummy_page) {
+		dev_err(dev->dev, "could not allocate dummy page\n");
+		ret = -ENOMEM;
+		goto fail;
+	}
+	omap_dmm->dummy_pa = page_to_phys(omap_dmm->dummy_page);
+
+	/* alloc refill memory */
+	omap_dmm->refill_va = dma_alloc_coherent(dev->dev,
+				REFILL_BUFFER_SIZE * omap_dmm->num_engines,
+				&omap_dmm->refill_pa, GFP_KERNEL);
+	if (!omap_dmm->refill_va) {
+		dev_err(dev->dev, "could not allocate refill memory\n");
+		goto fail;
+	}
+
+	/* alloc engines */
+	omap_dmm->engines = kzalloc(
+			omap_dmm->num_engines * sizeof(struct refill_engine),
+			GFP_KERNEL);
+	if (!omap_dmm->engines) {
+		dev_err(dev->dev, "could not allocate engines\n");
+		ret = -ENOMEM;
+		goto fail;
+	}
+
+	sema_init(&omap_dmm->engine_sem, omap_dmm->num_engines);
+	INIT_LIST_HEAD(&omap_dmm->idle_head);
+	for (i = 0; i < omap_dmm->num_engines; i++) {
+		omap_dmm->engines[i].id = i;
+		omap_dmm->engines[i].dmm = omap_dmm;
+		omap_dmm->engines[i].refill_va = omap_dmm->refill_va +
+						(REFILL_BUFFER_SIZE * i);
+		omap_dmm->engines[i].refill_pa = omap_dmm->refill_pa +
+						(REFILL_BUFFER_SIZE * i);
+		init_waitqueue_head(&omap_dmm->engines[i].wait_for_refill);
+
+		list_add(&omap_dmm->engines[i].idle_node, &omap_dmm->idle_head);
+	}
+
+	omap_dmm->tcm = kzalloc(omap_dmm->num_lut * sizeof(*omap_dmm->tcm),
+				GFP_KERNEL);
+	if (!omap_dmm->tcm) {
+		dev_err(dev->dev, "failed to allocate lut ptrs\n");
+		ret = -ENOMEM;
+		goto fail;
+	}
+
+	/* init containers */
+	for (i = 0; i < omap_dmm->num_lut; i++) {
+		omap_dmm->tcm[i] = sita_init(omap_dmm->container_width,
+						omap_dmm->container_height,
+						NULL);
+
+		if (!omap_dmm->tcm[i]) {
+			dev_err(dev->dev, "failed to allocate container\n");
+			ret = -ENOMEM;
+			goto fail;
+		}
+
+		omap_dmm->tcm[i]->lut_id = i;
+	}
+
+	/* assign access mode containers to applicable tcm container */
+	/* OMAP 4 has 1 container for all 4 views */
+	containers[TILFMT_8BIT] = omap_dmm->tcm[0];
+	containers[TILFMT_16BIT] = omap_dmm->tcm[0];
+	containers[TILFMT_32BIT] = omap_dmm->tcm[0];
+	containers[TILFMT_PAGE] = omap_dmm->tcm[0];
+
+	INIT_LIST_HEAD(&omap_dmm->alloc_head);
+	spin_lock_init(&omap_dmm->list_lock);
+
+	area = (struct tcm_area) {
+		.is2d = true,
+		.tcm = NULL,
+		.p1.x = omap_dmm->container_width - 1,
+		.p1.y = omap_dmm->container_height - 1,
+	};
+
+	for (i = 0; i < lut_table_size; i++)
+		omap_dmm->lut[i] = omap_dmm->dummy_pa;
+
+	/* initialize all LUTs to dummy page entries */
+	for (i = 0; i < omap_dmm->num_lut; i++) {
+		area.tcm = omap_dmm->tcm[i];
+		if (fill(&area, NULL, 0, 0, true))
+			dev_err(omap_dmm->dev, "refill failed");
+	}
+
+	dev_info(omap_dmm->dev, "initialized all PAT entries\n");
+
+	return 0;
+
+fail:
+	omap_dmm_remove();
+	return ret;
+}
+
+/*
+ * debugfs support
+ */
+
+#ifdef CONFIG_DEBUG_FS
+
+static const char *alphabet = "abcdefghijklmnopqrstuvwxyz"
+				"ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
+static const char *special = ".,:;'\"`~!^-+";
+
+static void fill_map(char **map, int xdiv, int ydiv, struct tcm_area *a,
+							char c, bool ovw)
+{
+	int x, y;
+	for (y = a->p0.y / ydiv; y <= a->p1.y / ydiv; y++)
+		for (x = a->p0.x / xdiv; x <= a->p1.x / xdiv; x++)
+			if (map[y][x] == ' ' || ovw)
+				map[y][x] = c;
+}
+
+static void fill_map_pt(char **map, int xdiv, int ydiv, struct tcm_pt *p,
+									char c)
+{
+	map[p->y / ydiv][p->x / xdiv] = c;
+}
+
+static char read_map_pt(char **map, int xdiv, int ydiv, struct tcm_pt *p)
+{
+	return map[p->y / ydiv][p->x / xdiv];
+}
+
+static int map_width(int xdiv, int x0, int x1)
+{
+	return (x1 / xdiv) - (x0 / xdiv) + 1;
+}
+
+static void text_map(char **map, int xdiv, char *nice, int yd, int x0, int x1)
+{
+	char *p = map[yd] + (x0 / xdiv);
+	int w = (map_width(xdiv, x0, x1) - strlen(nice)) / 2;
+	if (w >= 0) {
+		p += w;
+		while (*nice)
+			*p++ = *nice++;
+	}
+}
+
+static void map_1d_info(char **map, int xdiv, int ydiv, char *nice,
+							struct tcm_area *a)
+{
+	sprintf(nice, "%dK", tcm_sizeof(*a) * 4);
+	if (a->p0.y + 1 < a->p1.y) {
+		text_map(map, xdiv, nice, (a->p0.y + a->p1.y) / 2 / ydiv, 0,
+							256 - 1);
+	} else if (a->p0.y < a->p1.y) {
+		if (strlen(nice) < map_width(xdiv, a->p0.x, 256 - 1))
+			text_map(map, xdiv, nice, a->p0.y / ydiv,
+					a->p0.x + xdiv,	256 - 1);
+		else if (strlen(nice) < map_width(xdiv, 0, a->p1.x))
+			text_map(map, xdiv, nice, a->p1.y / ydiv,
+					0, a->p1.y - xdiv);
+	} else if (strlen(nice) + 1 < map_width(xdiv, a->p0.x, a->p1.x)) {
+		text_map(map, xdiv, nice, a->p0.y / ydiv, a->p0.x, a->p1.x);
+	}
+}
+
+static void map_2d_info(char **map, int xdiv, int ydiv, char *nice,
+							struct tcm_area *a)
+{
+	sprintf(nice, "(%d*%d)", tcm_awidth(*a), tcm_aheight(*a));
+	if (strlen(nice) + 1 < map_width(xdiv, a->p0.x, a->p1.x))
+		text_map(map, xdiv, nice, (a->p0.y + a->p1.y) / 2 / ydiv,
+							a->p0.x, a->p1.x);
+}
+
+int tiler_map_show(struct seq_file *s, void *arg)
+{
+	int xdiv = 2, ydiv = 1;
+	char **map = NULL, *global_map;
+	struct tiler_block *block;
+	struct tcm_area a, p;
+	int i;
+	const char *m2d = alphabet;
+	const char *a2d = special;
+	const char *m2dp = m2d, *a2dp = a2d;
+	char nice[128];
+	int h_adj = omap_dmm->lut_height / ydiv;
+	int w_adj = omap_dmm->lut_width / xdiv;
+	unsigned long flags;
+
+	map = kzalloc(h_adj * sizeof(*map), GFP_KERNEL);
+	global_map = kzalloc((w_adj + 1) * h_adj, GFP_KERNEL);
+
+	if (!map || !global_map)
+		goto error;
+
+	memset(global_map, ' ', (w_adj + 1) * h_adj);
+	for (i = 0; i < omap_dmm->lut_height; i++) {
+		map[i] = global_map + i * (w_adj + 1);
+		map[i][w_adj] = 0;
+	}
+	spin_lock_irqsave(&omap_dmm->list_lock, flags);
+
+	list_for_each_entry(block, &omap_dmm->alloc_head, alloc_node) {
+		if (block->fmt != TILFMT_PAGE) {
+			fill_map(map, xdiv, ydiv, &block->area, *m2dp, true);
+			if (!*++a2dp)
+				a2dp = a2d;
+			if (!*++m2dp)
+				m2dp = m2d;
+			map_2d_info(map, xdiv, ydiv, nice, &block->area);
+		} else {
+			bool start = read_map_pt(map, xdiv, ydiv,
+							&block->area.p0)
+									== ' ';
+			bool end = read_map_pt(map, xdiv, ydiv, &block->area.p1)
+									== ' ';
+			tcm_for_each_slice(a, block->area, p)
+				fill_map(map, xdiv, ydiv, &a, '=', true);
+			fill_map_pt(map, xdiv, ydiv, &block->area.p0,
+							start ? '<' : 'X');
+			fill_map_pt(map, xdiv, ydiv, &block->area.p1,
+							end ? '>' : 'X');
+			map_1d_info(map, xdiv, ydiv, nice, &block->area);
+		}
+	}
+
+	spin_unlock_irqrestore(&omap_dmm->list_lock, flags);
+
+	if (s) {
+		seq_printf(s, "BEGIN DMM TILER MAP\n");
+		for (i = 0; i < 128; i++)
+			seq_printf(s, "%03d:%s\n", i, map[i]);
+		seq_printf(s, "END TILER MAP\n");
+	} else {
+		dev_dbg(omap_dmm->dev, "BEGIN DMM TILER MAP\n");
+		for (i = 0; i < 128; i++)
+			dev_dbg(omap_dmm->dev, "%03d:%s\n", i, map[i]);
+		dev_dbg(omap_dmm->dev, "END TILER MAP\n");
+	}
+
+error:
+	kfree(map);
+	kfree(global_map);
+
+	return 0;
+}
+#endif
diff --git a/drivers/staging/omapdrm/omap_dmm_tiler.h b/drivers/staging/omapdrm/omap_dmm_tiler.h
new file mode 100644
index 000000000000..f87cb657d683
--- /dev/null
+++ b/drivers/staging/omapdrm/omap_dmm_tiler.h
@@ -0,0 +1,135 @@
+/*
+ *
+ * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com/
+ * Author: Rob Clark <rob@ti.com>
+ *         Andy Gross <andy.gross@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation version 2.
+ *
+ * This program is distributed "as is" WITHOUT ANY WARRANTY of any
+ * kind, whether express or implied; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+#ifndef OMAP_DMM_TILER_H
+#define OMAP_DMM_TILER_H
+
+#include "omap_drv.h"
+#include "tcm.h"
+
+enum tiler_fmt {
+	TILFMT_8BIT = 0,
+	TILFMT_16BIT,
+	TILFMT_32BIT,
+	TILFMT_PAGE,
+	TILFMT_NFORMATS
+};
+
+struct pat_area {
+	u32 x0:8;
+	u32 y0:8;
+	u32 x1:8;
+	u32 y1:8;
+};
+
+struct tiler_block {
+	struct list_head alloc_node;	/* node for global block list */
+	struct tcm_area area;		/* area */
+	enum tiler_fmt fmt;		/* format */
+};
+
+/* bits representing the same slot in DMM-TILER hw-block */
+#define SLOT_WIDTH_BITS         6
+#define SLOT_HEIGHT_BITS        6
+
+/* bits reserved to describe coordinates in DMM-TILER hw-block */
+#define CONT_WIDTH_BITS         14
+#define CONT_HEIGHT_BITS        13
+
+/* calculated constants */
+#define TILER_PAGE              (1 << (SLOT_WIDTH_BITS + SLOT_HEIGHT_BITS))
+#define TILER_WIDTH             (1 << (CONT_WIDTH_BITS - SLOT_WIDTH_BITS))
+#define TILER_HEIGHT            (1 << (CONT_HEIGHT_BITS - SLOT_HEIGHT_BITS))
+
+/* tiler space addressing bitfields */
+#define MASK_XY_FLIP		(1 << 31)
+#define MASK_Y_INVERT		(1 << 30)
+#define MASK_X_INVERT		(1 << 29)
+#define SHIFT_ACC_MODE		27
+#define MASK_ACC_MODE		3
+
+#define MASK(bits) ((1 << (bits)) - 1)
+
+#define TILVIEW_8BIT    0x60000000u
+#define TILVIEW_16BIT   (TILVIEW_8BIT  + VIEW_SIZE)
+#define TILVIEW_32BIT   (TILVIEW_16BIT + VIEW_SIZE)
+#define TILVIEW_PAGE    (TILVIEW_32BIT + VIEW_SIZE)
+#define TILVIEW_END     (TILVIEW_PAGE  + VIEW_SIZE)
+
+/* create tsptr by adding view orientation and access mode */
+#define TIL_ADDR(x, orient, a)\
+	((u32) (x) | (orient) | ((a) << SHIFT_ACC_MODE))
+
+/* externally accessible functions */
+int omap_dmm_init(struct drm_device *dev);
+int omap_dmm_remove(void);
+
+#ifdef CONFIG_DEBUG_FS
+int tiler_map_show(struct seq_file *s, void *arg);
+#endif
+
+/* pin/unpin */
+int tiler_pin(struct tiler_block *block, struct page **pages,
+		uint32_t npages, uint32_t roll, bool wait);
+int tiler_unpin(struct tiler_block *block);
+
+/* reserve/release */
+struct tiler_block *tiler_reserve_2d(enum tiler_fmt fmt, uint16_t w, uint16_t h,
+				uint16_t align);
+struct tiler_block *tiler_reserve_1d(size_t size);
+int tiler_release(struct tiler_block *block);
+
+/* utilities */
+dma_addr_t tiler_ssptr(struct tiler_block *block);
+uint32_t tiler_stride(enum tiler_fmt fmt);
+size_t tiler_size(enum tiler_fmt fmt, uint16_t w, uint16_t h);
+size_t tiler_vsize(enum tiler_fmt fmt, uint16_t w, uint16_t h);
+void tiler_align(enum tiler_fmt fmt, uint16_t *w, uint16_t *h);
+
+
+/* GEM bo flags -> tiler fmt */
+static inline enum tiler_fmt gem2fmt(uint32_t flags)
+{
+	switch (flags & OMAP_BO_TILED) {
+	case OMAP_BO_TILED_8:
+		return TILFMT_8BIT;
+	case OMAP_BO_TILED_16:
+		return TILFMT_16BIT;
+	case OMAP_BO_TILED_32:
+		return TILFMT_32BIT;
+	default:
+		return TILFMT_PAGE;
+	}
+}
+
+static inline bool validfmt(enum tiler_fmt fmt)
+{
+	switch (fmt) {
+	case TILFMT_8BIT:
+	case TILFMT_16BIT:
+	case TILFMT_32BIT:
+	case TILFMT_PAGE:
+		return true;
+	default:
+		return false;
+	}
+}
+
+struct omap_dmm_platform_data {
+	void __iomem *base;
+	int irq;
+};
+
+#endif
diff --git a/drivers/staging/omapdrm/omap_drm.h b/drivers/staging/omapdrm/omap_drm.h
new file mode 100644
index 000000000000..f0ac34a8973e
--- /dev/null
+++ b/drivers/staging/omapdrm/omap_drm.h
@@ -0,0 +1,123 @@
+/*
+ * include/drm/omap_drm.h
+ *
+ * Copyright (C) 2011 Texas Instruments
+ * Author: Rob Clark <rob@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __OMAP_DRM_H__
+#define __OMAP_DRM_H__
+
+#include <drm/drm.h>
+
+/* Please note that modifications to all structs defined here are
+ * subject to backwards-compatibility constraints.
+ */
+
+#define OMAP_PARAM_CHIPSET_ID	1	/* ie. 0x3430, 0x4430, etc */
+
+struct drm_omap_param {
+	uint64_t param;			/* in */
+	uint64_t value;			/* in (set_param), out (get_param) */
+};
+
+#define OMAP_BO_SCANOUT		0x00000001	/* scanout capable (phys contiguous) */
+#define OMAP_BO_CACHE_MASK	0x00000006	/* cache type mask, see cache modes */
+#define OMAP_BO_TILED_MASK	0x00000f00	/* tiled mapping mask, see tiled modes */
+
+/* cache modes */
+#define OMAP_BO_CACHED		0x00000000	/* default */
+#define OMAP_BO_WC		0x00000002	/* write-combine */
+#define OMAP_BO_UNCACHED	0x00000004	/* strongly-ordered (uncached) */
+
+/* tiled modes */
+#define OMAP_BO_TILED_8		0x00000100
+#define OMAP_BO_TILED_16	0x00000200
+#define OMAP_BO_TILED_32	0x00000300
+#define OMAP_BO_TILED		(OMAP_BO_TILED_8 | OMAP_BO_TILED_16 | OMAP_BO_TILED_32)
+
+union omap_gem_size {
+	uint32_t bytes;		/* (for non-tiled formats) */
+	struct {
+		uint16_t width;
+		uint16_t height;
+	} tiled;		/* (for tiled formats) */
+};
+
+struct drm_omap_gem_new {
+	union omap_gem_size size;	/* in */
+	uint32_t flags;			/* in */
+	uint32_t handle;		/* out */
+	uint32_t __pad;
+};
+
+/* mask of operations: */
+enum omap_gem_op {
+	OMAP_GEM_READ = 0x01,
+	OMAP_GEM_WRITE = 0x02,
+};
+
+struct drm_omap_gem_cpu_prep {
+	uint32_t handle;		/* buffer handle (in) */
+	uint32_t op;			/* mask of omap_gem_op (in) */
+};
+
+struct drm_omap_gem_cpu_fini {
+	uint32_t handle;		/* buffer handle (in) */
+	uint32_t op;			/* mask of omap_gem_op (in) */
+	/* TODO maybe here we pass down info about what regions are touched
+	 * by sw so we can be clever about cache ops?  For now a placeholder,
+	 * set to zero and we just do full buffer flush..
+	 */
+	uint32_t nregions;
+	uint32_t __pad;
+};
+
+struct drm_omap_gem_info {
+	uint32_t handle;		/* buffer handle (in) */
+	uint32_t pad;
+	uint64_t offset;		/* mmap offset (out) */
+	/* note: in case of tiled buffers, the user virtual size can be
+	 * different from the physical size (ie. how many pages are needed
+	 * to back the object) which is returned in DRM_IOCTL_GEM_OPEN..
+	 * This size here is the one that should be used if you want to
+	 * mmap() the buffer:
+	 */
+	uint32_t size;			/* virtual size for mmap'ing (out) */
+	uint32_t __pad;
+};
+
+#define DRM_OMAP_GET_PARAM		0x00
+#define DRM_OMAP_SET_PARAM		0x01
+/* placeholder for plugin-api
+#define DRM_OMAP_GET_BASE		0x02
+*/
+#define DRM_OMAP_GEM_NEW		0x03
+#define DRM_OMAP_GEM_CPU_PREP		0x04
+#define DRM_OMAP_GEM_CPU_FINI		0x05
+#define DRM_OMAP_GEM_INFO		0x06
+#define DRM_OMAP_NUM_IOCTLS		0x07
+
+#define DRM_IOCTL_OMAP_GET_PARAM	DRM_IOWR(DRM_COMMAND_BASE + DRM_OMAP_GET_PARAM, struct drm_omap_param)
+#define DRM_IOCTL_OMAP_SET_PARAM	DRM_IOW (DRM_COMMAND_BASE + DRM_OMAP_SET_PARAM, struct drm_omap_param)
+/* placeholder for plugin-api
+#define DRM_IOCTL_OMAP_GET_BASE		DRM_IOWR(DRM_COMMAND_BASE + DRM_OMAP_GET_BASE, struct drm_omap_get_base)
+*/
+#define DRM_IOCTL_OMAP_GEM_NEW		DRM_IOWR(DRM_COMMAND_BASE + DRM_OMAP_GEM_NEW, struct drm_omap_gem_new)
+#define DRM_IOCTL_OMAP_GEM_CPU_PREP	DRM_IOW (DRM_COMMAND_BASE + DRM_OMAP_GEM_CPU_PREP, struct drm_omap_gem_cpu_prep)
+#define DRM_IOCTL_OMAP_GEM_CPU_FINI	DRM_IOW (DRM_COMMAND_BASE + DRM_OMAP_GEM_CPU_FINI, struct drm_omap_gem_cpu_fini)
+#define DRM_IOCTL_OMAP_GEM_INFO		DRM_IOWR(DRM_COMMAND_BASE + DRM_OMAP_GEM_INFO, struct drm_omap_gem_info)
+
+#endif /* __OMAP_DRM_H__ */
diff --git a/drivers/staging/omapdrm/omap_drv.c b/drivers/staging/omapdrm/omap_drv.c
new file mode 100644
index 000000000000..602aa2dd49c8
--- /dev/null
+++ b/drivers/staging/omapdrm/omap_drv.c
@@ -0,0 +1,821 @@
+/*
+ * drivers/staging/omapdrm/omap_drv.c
+ *
+ * Copyright (C) 2011 Texas Instruments
+ * Author: Rob Clark <rob@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "omap_drv.h"
+
+#include "drm_crtc_helper.h"
+#include "drm_fb_helper.h"
+
+#define DRIVER_NAME		MODULE_NAME
+#define DRIVER_DESC		"OMAP DRM"
+#define DRIVER_DATE		"20110917"
+#define DRIVER_MAJOR		1
+#define DRIVER_MINOR		0
+#define DRIVER_PATCHLEVEL	0
+
+struct drm_device *drm_device;
+
+static int num_crtc = CONFIG_DRM_OMAP_NUM_CRTCS;
+
+MODULE_PARM_DESC(num_crtc, "Number of overlays to use as CRTCs");
+module_param(num_crtc, int, 0600);
+
+/*
+ * mode config funcs
+ */
+
+/* Notes about mapping DSS and DRM entities:
+ *    CRTC:        overlay
+ *    encoder:     manager.. with some extension to allow one primary CRTC
+ *                 and zero or more video CRTC's to be mapped to one encoder?
+ *    connector:   dssdev.. manager can be attached/detached from different
+ *                 devices
+ */
+
+static void omap_fb_output_poll_changed(struct drm_device *dev)
+{
+	struct omap_drm_private *priv = dev->dev_private;
+	DBG("dev=%p", dev);
+	if (priv->fbdev) {
+		drm_fb_helper_hotplug_event(priv->fbdev);
+	}
+}
+
+static struct drm_mode_config_funcs omap_mode_config_funcs = {
+	.fb_create = omap_framebuffer_create,
+	.output_poll_changed = omap_fb_output_poll_changed,
+};
+
+static int get_connector_type(struct omap_dss_device *dssdev)
+{
+	switch (dssdev->type) {
+	case OMAP_DISPLAY_TYPE_HDMI:
+		return DRM_MODE_CONNECTOR_HDMIA;
+	case OMAP_DISPLAY_TYPE_DPI:
+		if (!strcmp(dssdev->name, "dvi"))
+			return DRM_MODE_CONNECTOR_DVID;
+		/* fallthrough */
+	default:
+		return DRM_MODE_CONNECTOR_Unknown;
+	}
+}
+
+#if 0 /* enable when dss2 supports hotplug */
+static int omap_drm_notifier(struct notifier_block *nb,
+		unsigned long evt, void *arg)
+{
+	switch (evt) {
+	case OMAP_DSS_SIZE_CHANGE:
+	case OMAP_DSS_HOTPLUG_CONNECT:
+	case OMAP_DSS_HOTPLUG_DISCONNECT: {
+		struct drm_device *dev = drm_device;
+		DBG("hotplug event: evt=%d, dev=%p", evt, dev);
+		if (dev) {
+			drm_sysfs_hotplug_event(dev);
+		}
+		return NOTIFY_OK;
+	}
+	default:  /* don't care about other events for now */
+		return NOTIFY_DONE;
+	}
+}
+#endif
+
+static void dump_video_chains(void)
+{
+	int i;
+
+	DBG("dumping video chains: ");
+	for (i = 0; i < omap_dss_get_num_overlays(); i++) {
+		struct omap_overlay *ovl = omap_dss_get_overlay(i);
+		struct omap_overlay_manager *mgr = ovl->manager;
+		struct omap_dss_device *dssdev = mgr ? mgr->device : NULL;
+		if (dssdev) {
+			DBG("%d: %s -> %s -> %s", i, ovl->name, mgr->name,
+						dssdev->name);
+		} else if (mgr) {
+			DBG("%d: %s -> %s", i, ovl->name, mgr->name);
+		} else {
+			DBG("%d: %s", i, ovl->name);
+		}
+	}
+}
+
+/* create encoders for each manager */
+static int create_encoder(struct drm_device *dev,
+		struct omap_overlay_manager *mgr)
+{
+	struct omap_drm_private *priv = dev->dev_private;
+	struct drm_encoder *encoder = omap_encoder_init(dev, mgr);
+
+	if (!encoder) {
+		dev_err(dev->dev, "could not create encoder: %s\n",
+				mgr->name);
+		return -ENOMEM;
+	}
+
+	BUG_ON(priv->num_encoders >= ARRAY_SIZE(priv->encoders));
+
+	priv->encoders[priv->num_encoders++] = encoder;
+
+	return 0;
+}
+
+/* create connectors for each display device */
+static int create_connector(struct drm_device *dev,
+		struct omap_dss_device *dssdev)
+{
+	struct omap_drm_private *priv = dev->dev_private;
+	static struct notifier_block *notifier;
+	struct drm_connector *connector;
+	int j;
+
+	if (!dssdev->driver) {
+		dev_warn(dev->dev, "%s has no driver.. skipping it\n",
+				dssdev->name);
+		return 0;
+	}
+
+	if (!(dssdev->driver->get_timings ||
+				dssdev->driver->read_edid)) {
+		dev_warn(dev->dev, "%s driver does not support "
+			"get_timings or read_edid.. skipping it!\n",
+			dssdev->name);
+		return 0;
+	}
+
+	connector = omap_connector_init(dev,
+			get_connector_type(dssdev), dssdev);
+
+	if (!connector) {
+		dev_err(dev->dev, "could not create connector: %s\n",
+				dssdev->name);
+		return -ENOMEM;
+	}
+
+	BUG_ON(priv->num_connectors >= ARRAY_SIZE(priv->connectors));
+
+	priv->connectors[priv->num_connectors++] = connector;
+
+#if 0 /* enable when dss2 supports hotplug */
+	notifier = kzalloc(sizeof(struct notifier_block), GFP_KERNEL);
+	notifier->notifier_call = omap_drm_notifier;
+	omap_dss_add_notify(dssdev, notifier);
+#else
+	notifier = NULL;
+#endif
+
+	for (j = 0; j < priv->num_encoders; j++) {
+		struct omap_overlay_manager *mgr =
+			omap_encoder_get_manager(priv->encoders[j]);
+		if (mgr->device == dssdev) {
+			drm_mode_connector_attach_encoder(connector,
+					priv->encoders[j]);
+		}
+	}
+
+	return 0;
+}
+
+/* create up to max_overlays CRTCs mapping to overlays.. by default,
+ * connect the overlays to different managers/encoders, giving priority
+ * to encoders connected to connectors with a detected connection
+ */
+static int create_crtc(struct drm_device *dev, struct omap_overlay *ovl,
+		int *j, unsigned int connected_connectors)
+{
+	struct omap_drm_private *priv = dev->dev_private;
+	struct omap_overlay_manager *mgr = NULL;
+	struct drm_crtc *crtc;
+
+	if (ovl->manager) {
+		DBG("disconnecting %s from %s", ovl->name,
+					ovl->manager->name);
+		ovl->unset_manager(ovl);
+	}
+
+	/* find next best connector, ones with detected connection first
+	 */
+	while (*j < priv->num_connectors && !mgr) {
+		if (connected_connectors & (1 << *j)) {
+			struct drm_encoder *encoder =
+				omap_connector_attached_encoder(
+						priv->connectors[*j]);
+			if (encoder) {
+				mgr = omap_encoder_get_manager(encoder);
+			}
+		}
+		(*j)++;
+	}
+
+	/* if we couldn't find another connected connector, lets start
+	 * looking at the unconnected connectors:
+	 *
+	 * note: it might not be immediately apparent, but thanks to
+	 * the !mgr check in both this loop and the one above, the only
+	 * way to enter this loop is with *j == priv->num_connectors,
+	 * so idx can never go negative.
+	 */
+	while (*j < 2 * priv->num_connectors && !mgr) {
+		int idx = *j - priv->num_connectors;
+		if (!(connected_connectors & (1 << idx))) {
+			struct drm_encoder *encoder =
+				omap_connector_attached_encoder(
+						priv->connectors[idx]);
+			if (encoder) {
+				mgr = omap_encoder_get_manager(encoder);
+			}
+		}
+		(*j)++;
+	}
+
+	if (mgr) {
+		DBG("connecting %s to %s", ovl->name, mgr->name);
+		ovl->set_manager(ovl, mgr);
+	}
+
+	crtc = omap_crtc_init(dev, ovl, priv->num_crtcs);
+
+	if (!crtc) {
+		dev_err(dev->dev, "could not create CRTC: %s\n",
+				ovl->name);
+		return -ENOMEM;
+	}
+
+	BUG_ON(priv->num_crtcs >= ARRAY_SIZE(priv->crtcs));
+
+	priv->crtcs[priv->num_crtcs++] = crtc;
+
+	return 0;
+}
+
+static int match_dev_name(struct omap_dss_device *dssdev, void *data)
+{
+	return !strcmp(dssdev->name, data);
+}
+
+static unsigned int detect_connectors(struct drm_device *dev)
+{
+	struct omap_drm_private *priv = dev->dev_private;
+	unsigned int connected_connectors = 0;
+	int i;
+
+	for (i = 0; i < priv->num_connectors; i++) {
+		struct drm_connector *connector = priv->connectors[i];
+		if (omap_connector_detect(connector, true) ==
+				connector_status_connected) {
+			connected_connectors |= (1 << i);
+		}
+	}
+
+	return connected_connectors;
+}
+
+static int omap_modeset_init(struct drm_device *dev)
+{
+	const struct omap_drm_platform_data *pdata = dev->dev->platform_data;
+	struct omap_kms_platform_data *kms_pdata = NULL;
+	struct omap_drm_private *priv = dev->dev_private;
+	struct omap_dss_device *dssdev = NULL;
+	int i, j;
+	unsigned int connected_connectors = 0;
+
+	drm_mode_config_init(dev);
+
+	if (pdata && pdata->kms_pdata) {
+		kms_pdata = pdata->kms_pdata;
+
+		/* if platform data is provided by the board file, use it to
+		 * control which overlays, managers, and devices we own.
+		 */
+		for (i = 0; i < kms_pdata->mgr_cnt; i++) {
+			struct omap_overlay_manager *mgr =
+				omap_dss_get_overlay_manager(
+						kms_pdata->mgr_ids[i]);
+			create_encoder(dev, mgr);
+		}
+
+		for (i = 0; i < kms_pdata->dev_cnt; i++) {
+			struct omap_dss_device *dssdev =
+				omap_dss_find_device(
+					(void *)kms_pdata->dev_names[i],
+					match_dev_name);
+			if (!dssdev) {
+				dev_warn(dev->dev, "no such dssdev: %s\n",
+						kms_pdata->dev_names[i]);
+				continue;
+			}
+			create_connector(dev, dssdev);
+		}
+
+		connected_connectors = detect_connectors(dev);
+
+		j = 0;
+		for (i = 0; i < kms_pdata->ovl_cnt; i++) {
+			struct omap_overlay *ovl =
+				omap_dss_get_overlay(kms_pdata->ovl_ids[i]);
+			create_crtc(dev, ovl, &j, connected_connectors);
+		}
+	} else {
+		/* otherwise just grab up to CONFIG_DRM_OMAP_NUM_CRTCS and try
+		 * to make educated guesses about everything else
+		 */
+		int max_overlays = min(omap_dss_get_num_overlays(), num_crtc);
+
+		for (i = 0; i < omap_dss_get_num_overlay_managers(); i++) {
+			create_encoder(dev, omap_dss_get_overlay_manager(i));
+		}
+
+		for_each_dss_dev(dssdev) {
+			create_connector(dev, dssdev);
+		}
+
+		connected_connectors = detect_connectors(dev);
+
+		j = 0;
+		for (i = 0; i < max_overlays; i++) {
+			create_crtc(dev, omap_dss_get_overlay(i),
+					&j, connected_connectors);
+		}
+	}
+
+	/* for now keep the mapping of CRTCs and encoders static.. */
+	for (i = 0; i < priv->num_encoders; i++) {
+		struct drm_encoder *encoder = priv->encoders[i];
+		struct omap_overlay_manager *mgr =
+				omap_encoder_get_manager(encoder);
+
+		encoder->possible_crtcs = 0;
+
+		for (j = 0; j < priv->num_crtcs; j++) {
+			struct omap_overlay *ovl =
+					omap_crtc_get_overlay(priv->crtcs[j]);
+			if (ovl->manager == mgr) {
+				encoder->possible_crtcs |= (1 << j);
+			}
+		}
+
+		DBG("%s: possible_crtcs=%08x", mgr->name,
+					encoder->possible_crtcs);
+	}
+
+	dump_video_chains();
+
+	dev->mode_config.min_width = 256;
+	dev->mode_config.min_height = 256;
+
+	/* note: eventually will need some cpu_is_omapXYZ() type stuff here
+	 * to fill in these limits properly on different OMAP generations..
+	 */
+	dev->mode_config.max_width = 2048;
+	dev->mode_config.max_height = 2048;
+
+	dev->mode_config.funcs = &omap_mode_config_funcs;
+
+	return 0;
+}
+
+static void omap_modeset_free(struct drm_device *dev)
+{
+	drm_mode_config_cleanup(dev);
+}
+
+/*
+ * drm ioctl funcs
+ */
+
+
+static int ioctl_get_param(struct drm_device *dev, void *data,
+		struct drm_file *file_priv)
+{
+	struct drm_omap_param *args = data;
+
+	DBG("%p: param=%llu", dev, args->param);
+
+	switch (args->param) {
+	case OMAP_PARAM_CHIPSET_ID:
+		args->value = GET_OMAP_TYPE;
+		break;
+	default:
+		DBG("unknown parameter %lld", args->param);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int ioctl_set_param(struct drm_device *dev, void *data,
+		struct drm_file *file_priv)
+{
+	struct drm_omap_param *args = data;
+
+	switch (args->param) {
+	default:
+		DBG("unknown parameter %lld", args->param);
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int ioctl_gem_new(struct drm_device *dev, void *data,
+		struct drm_file *file_priv)
+{
+	struct drm_omap_gem_new *args = data;
+	DBG("%p:%p: size=0x%08x, flags=%08x", dev, file_priv,
+			args->size.bytes, args->flags);
+	return omap_gem_new_handle(dev, file_priv, args->size,
+			args->flags, &args->handle);
+}
+
+static int ioctl_gem_cpu_prep(struct drm_device *dev, void *data,
+		struct drm_file *file_priv)
+{
+	struct drm_omap_gem_cpu_prep *args = data;
+	struct drm_gem_object *obj;
+	int ret;
+
+	VERB("%p:%p: handle=%d, op=%x", dev, file_priv, args->handle, args->op);
+
+	obj = drm_gem_object_lookup(dev, file_priv, args->handle);
+	if (!obj) {
+		return -ENOENT;
+	}
+
+	ret = omap_gem_op_sync(obj, args->op);
+
+	if (!ret) {
+		ret = omap_gem_op_start(obj, args->op);
+	}
+
+	drm_gem_object_unreference_unlocked(obj);
+
+	return ret;
+}
+
+static int ioctl_gem_cpu_fini(struct drm_device *dev, void *data,
+		struct drm_file *file_priv)
+{
+	struct drm_omap_gem_cpu_fini *args = data;
+	struct drm_gem_object *obj;
+	int ret;
+
+	VERB("%p:%p: handle=%d", dev, file_priv, args->handle);
+
+	obj = drm_gem_object_lookup(dev, file_priv, args->handle);
+	if (!obj) {
+		return -ENOENT;
+	}
+
+	/* XXX flushy, flushy */
+	ret = 0;
+
+	if (!ret) {
+		ret = omap_gem_op_finish(obj, args->op);
+	}
+
+	drm_gem_object_unreference_unlocked(obj);
+
+	return ret;
+}
+
+static int ioctl_gem_info(struct drm_device *dev, void *data,
+		struct drm_file *file_priv)
+{
+	struct drm_omap_gem_info *args = data;
+	struct drm_gem_object *obj;
+	int ret = 0;
+
+	DBG("%p:%p: handle=%d", dev, file_priv, args->handle);
+
+	obj = drm_gem_object_lookup(dev, file_priv, args->handle);
+	if (!obj) {
+		return -ENOENT;
+	}
+
+	args->size = omap_gem_mmap_size(obj);
+	args->offset = omap_gem_mmap_offset(obj);
+
+	drm_gem_object_unreference_unlocked(obj);
+
+	return ret;
+}
+
+struct drm_ioctl_desc ioctls[DRM_COMMAND_END - DRM_COMMAND_BASE] = {
+	DRM_IOCTL_DEF_DRV(OMAP_GET_PARAM, ioctl_get_param, DRM_UNLOCKED|DRM_AUTH),
+	DRM_IOCTL_DEF_DRV(OMAP_SET_PARAM, ioctl_set_param, DRM_UNLOCKED|DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+	DRM_IOCTL_DEF_DRV(OMAP_GEM_NEW, ioctl_gem_new, DRM_UNLOCKED|DRM_AUTH),
+	DRM_IOCTL_DEF_DRV(OMAP_GEM_CPU_PREP, ioctl_gem_cpu_prep, DRM_UNLOCKED|DRM_AUTH),
+	DRM_IOCTL_DEF_DRV(OMAP_GEM_CPU_FINI, ioctl_gem_cpu_fini, DRM_UNLOCKED|DRM_AUTH),
+	DRM_IOCTL_DEF_DRV(OMAP_GEM_INFO, ioctl_gem_info, DRM_UNLOCKED|DRM_AUTH),
+};
+
+/*
+ * drm driver funcs
+ */
+
+/**
+ * load - setup chip and create an initial config
+ * @dev: DRM device
+ * @flags: startup flags
+ *
+ * The driver load routine has to do several things:
+ *   - initialize the memory manager
+ *   - allocate initial config memory
+ *   - setup the DRM framebuffer with the allocated memory
+ */
+static int dev_load(struct drm_device *dev, unsigned long flags)
+{
+	struct omap_drm_private *priv;
+	int ret;
+
+	DBG("load: dev=%p", dev);
+
+	drm_device = dev;
+
+	priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+	if (!priv) {
+		dev_err(dev->dev, "could not allocate priv\n");
+		return -ENOMEM;
+	}
+
+	dev->dev_private = priv;
+
+	omap_gem_init(dev);
+
+	ret = omap_modeset_init(dev);
+	if (ret) {
+		dev_err(dev->dev, "omap_modeset_init failed: ret=%d\n", ret);
+		dev->dev_private = NULL;
+		kfree(priv);
+		return ret;
+	}
+
+	priv->fbdev = omap_fbdev_init(dev);
+	if (!priv->fbdev) {
+		dev_warn(dev->dev, "omap_fbdev_init failed\n");
+		/* well, limp along without an fbdev.. maybe X11 will work? */
+	}
+
+	drm_kms_helper_poll_init(dev);
+
+	ret = drm_vblank_init(dev, priv->num_crtcs);
+	if (ret) {
+		dev_warn(dev->dev, "could not init vblank\n");
+	}
+
+	return 0;
+}
+
+static int dev_unload(struct drm_device *dev)
+{
+	DBG("unload: dev=%p", dev);
+
+	drm_vblank_cleanup(dev);
+	drm_kms_helper_poll_fini(dev);
+
+	omap_fbdev_free(dev);
+	omap_modeset_free(dev);
+	omap_gem_deinit(dev);
+
+	kfree(dev->dev_private);
+	dev->dev_private = NULL;
+
+	return 0;
+}
+
+static int dev_open(struct drm_device *dev, struct drm_file *file)
+{
+	file->driver_priv = NULL;
+
+	DBG("open: dev=%p, file=%p", dev, file);
+
+	return 0;
+}
+
+static int dev_firstopen(struct drm_device *dev)
+{
+	DBG("firstopen: dev=%p", dev);
+	return 0;
+}
+
+/**
+ * lastclose - clean up after all DRM clients have exited
+ * @dev: DRM device
+ *
+ * Take care of cleaning up after all DRM clients have exited.  In the
+ * mode setting case, we want to restore the kernel's initial mode (just
+ * in case the last client left us in a bad state).
+ */
+static void dev_lastclose(struct drm_device *dev)
+{
+	/* we don't support vga-switcheroo.. so just make sure the fbdev
+	 * mode is active
+	 */
+	struct omap_drm_private *priv = dev->dev_private;
+	int ret;
+
+	DBG("lastclose: dev=%p", dev);
+
+	ret = drm_fb_helper_restore_fbdev_mode(priv->fbdev);
+	if (ret)
+		DBG("failed to restore crtc mode");
+}
+
+static void dev_preclose(struct drm_device *dev, struct drm_file *file)
+{
+	DBG("preclose: dev=%p", dev);
+}
+
+static void dev_postclose(struct drm_device *dev, struct drm_file *file)
+{
+	DBG("postclose: dev=%p, file=%p", dev, file);
+}
+
+/**
+ * enable_vblank - enable vblank interrupt events
+ * @dev: DRM device
+ * @crtc: which irq to enable
+ *
+ * Enable vblank interrupts for @crtc.  If the device doesn't have
+ * a hardware vblank counter, this routine should be a no-op, since
+ * interrupts will have to stay on to keep the count accurate.
+ *
+ * RETURNS
+ * Zero on success, appropriate errno if the given @crtc's vblank
+ * interrupt cannot be enabled.
+ */
+static int dev_enable_vblank(struct drm_device *dev, int crtc)
+{
+	DBG("enable_vblank: dev=%p, crtc=%d", dev, crtc);
+	return 0;
+}
+
+/**
+ * disable_vblank - disable vblank interrupt events
+ * @dev: DRM device
+ * @crtc: which irq to enable
+ *
+ * Disable vblank interrupts for @crtc.  If the device doesn't have
+ * a hardware vblank counter, this routine should be a no-op, since
+ * interrupts will have to stay on to keep the count accurate.
+ */
+static void dev_disable_vblank(struct drm_device *dev, int crtc)
+{
+	DBG("disable_vblank: dev=%p, crtc=%d", dev, crtc);
+}
+
+static irqreturn_t dev_irq_handler(DRM_IRQ_ARGS)
+{
+	return IRQ_HANDLED;
+}
+
+static void dev_irq_preinstall(struct drm_device *dev)
+{
+	DBG("irq_preinstall: dev=%p", dev);
+}
+
+static int dev_irq_postinstall(struct drm_device *dev)
+{
+	DBG("irq_postinstall: dev=%p", dev);
+	return 0;
+}
+
+static void dev_irq_uninstall(struct drm_device *dev)
+{
+	DBG("irq_uninstall: dev=%p", dev);
+}
+
+static struct vm_operations_struct omap_gem_vm_ops = {
+	.fault = omap_gem_fault,
+	.open = drm_gem_vm_open,
+	.close = drm_gem_vm_close,
+};
+
+static struct drm_driver omap_drm_driver = {
+		.driver_features =
+				DRIVER_HAVE_IRQ | DRIVER_MODESET | DRIVER_GEM,
+		.load = dev_load,
+		.unload = dev_unload,
+		.open = dev_open,
+		.firstopen = dev_firstopen,
+		.lastclose = dev_lastclose,
+		.preclose = dev_preclose,
+		.postclose = dev_postclose,
+		.get_vblank_counter = drm_vblank_count,
+		.enable_vblank = dev_enable_vblank,
+		.disable_vblank = dev_disable_vblank,
+		.irq_preinstall = dev_irq_preinstall,
+		.irq_postinstall = dev_irq_postinstall,
+		.irq_uninstall = dev_irq_uninstall,
+		.irq_handler = dev_irq_handler,
+		.reclaim_buffers = drm_core_reclaim_buffers,
+#ifdef CONFIG_DEBUG_FS
+		.debugfs_init = omap_debugfs_init,
+		.debugfs_cleanup = omap_debugfs_cleanup,
+#endif
+		.gem_init_object = omap_gem_init_object,
+		.gem_free_object = omap_gem_free_object,
+		.gem_vm_ops = &omap_gem_vm_ops,
+		.dumb_create = omap_gem_dumb_create,
+		.dumb_map_offset = omap_gem_dumb_map_offset,
+		.dumb_destroy = omap_gem_dumb_destroy,
+		.ioctls = ioctls,
+		.num_ioctls = DRM_OMAP_NUM_IOCTLS,
+		.fops = {
+				.owner = THIS_MODULE,
+				.open = drm_open,
+				.unlocked_ioctl = drm_ioctl,
+				.release = drm_release,
+				.mmap = omap_gem_mmap,
+				.poll = drm_poll,
+				.fasync = drm_fasync,
+				.read = drm_read,
+				.llseek = noop_llseek,
+		},
+		.name = DRIVER_NAME,
+		.desc = DRIVER_DESC,
+		.date = DRIVER_DATE,
+		.major = DRIVER_MAJOR,
+		.minor = DRIVER_MINOR,
+		.patchlevel = DRIVER_PATCHLEVEL,
+};
+
+static int pdev_suspend(struct platform_device *pDevice, pm_message_t state)
+{
+	DBG("");
+	return 0;
+}
+
+static int pdev_resume(struct platform_device *device)
+{
+	DBG("");
+	return 0;
+}
+
+static void pdev_shutdown(struct platform_device *device)
+{
+	DBG("");
+}
+
+static int pdev_probe(struct platform_device *device)
+{
+	DBG("%s", device->name);
+	return drm_platform_init(&omap_drm_driver, device);
+}
+
+static int pdev_remove(struct platform_device *device)
+{
+	DBG("");
+	drm_platform_exit(&omap_drm_driver, device);
+	return 0;
+}
+
+struct platform_driver pdev = {
+		.driver = {
+			.name = DRIVER_NAME,
+			.owner = THIS_MODULE,
+		},
+		.probe = pdev_probe,
+		.remove = pdev_remove,
+		.suspend = pdev_suspend,
+		.resume = pdev_resume,
+		.shutdown = pdev_shutdown,
+};
+
+static int __init omap_drm_init(void)
+{
+	DBG("init");
+	return platform_driver_register(&pdev);
+}
+
+static void __exit omap_drm_fini(void)
+{
+	DBG("fini");
+	platform_driver_unregister(&pdev);
+}
+
+/* need late_initcall() so we load after dss_driver's are loaded */
+late_initcall(omap_drm_init);
+module_exit(omap_drm_fini);
+
+MODULE_AUTHOR("Rob Clark <rob@ti.com>");
+MODULE_DESCRIPTION("OMAP DRM Display Driver");
+MODULE_ALIAS("platform:" DRIVER_NAME);
+MODULE_LICENSE("GPL v2");
diff --git a/drivers/staging/omapdrm/omap_drv.h b/drivers/staging/omapdrm/omap_drv.h
new file mode 100644
index 000000000000..76c42515ecc5
--- /dev/null
+++ b/drivers/staging/omapdrm/omap_drv.h
@@ -0,0 +1,135 @@
+/*
+ * drivers/staging/omapdrm/omap_drv.h
+ *
+ * Copyright (C) 2011 Texas Instruments
+ * Author: Rob Clark <rob@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __OMAP_DRV_H__
+#define __OMAP_DRV_H__
+
+#include <video/omapdss.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <drm/drmP.h>
+#include "omap_drm.h"
+#include "omap_priv.h"
+
+#define DBG(fmt, ...) DRM_DEBUG(fmt"\n", ##__VA_ARGS__)
+#define VERB(fmt, ...) if (0) DRM_DEBUG(fmt, ##__VA_ARGS__) /* verbose debug */
+
+#define MODULE_NAME     "omapdrm"
+
+/* max # of mapper-id's that can be assigned.. todo, come up with a better
+ * (but still inexpensive) way to store/access per-buffer mapper private
+ * data..
+ */
+#define MAX_MAPPERS 2
+
+struct omap_drm_private {
+	unsigned int num_crtcs;
+	struct drm_crtc *crtcs[8];
+	unsigned int num_encoders;
+	struct drm_encoder *encoders[8];
+	unsigned int num_connectors;
+	struct drm_connector *connectors[8];
+
+	struct drm_fb_helper *fbdev;
+
+	bool has_dmm;
+};
+
+#ifdef CONFIG_DEBUG_FS
+int omap_debugfs_init(struct drm_minor *minor);
+void omap_debugfs_cleanup(struct drm_minor *minor);
+#endif
+
+struct drm_fb_helper *omap_fbdev_init(struct drm_device *dev);
+void omap_fbdev_free(struct drm_device *dev);
+
+struct drm_crtc *omap_crtc_init(struct drm_device *dev,
+		struct omap_overlay *ovl, int id);
+struct omap_overlay *omap_crtc_get_overlay(struct drm_crtc *crtc);
+
+struct drm_encoder *omap_encoder_init(struct drm_device *dev,
+		struct omap_overlay_manager *mgr);
+struct omap_overlay_manager *omap_encoder_get_manager(
+		struct drm_encoder *encoder);
+struct drm_encoder *omap_connector_attached_encoder(
+		struct drm_connector *connector);
+enum drm_connector_status omap_connector_detect(
+		struct drm_connector *connector, bool force);
+
+struct drm_connector *omap_connector_init(struct drm_device *dev,
+		int connector_type, struct omap_dss_device *dssdev);
+void omap_connector_mode_set(struct drm_connector *connector,
+		struct drm_display_mode *mode);
+void omap_connector_flush(struct drm_connector *connector,
+		int x, int y, int w, int h);
+
+struct drm_framebuffer *omap_framebuffer_create(struct drm_device *dev,
+		struct drm_file *file, struct drm_mode_fb_cmd *mode_cmd);
+struct drm_framebuffer *omap_framebuffer_init(struct drm_device *dev,
+		struct drm_mode_fb_cmd *mode_cmd, struct drm_gem_object *bo);
+struct drm_gem_object *omap_framebuffer_bo(struct drm_framebuffer *fb);
+int omap_framebuffer_get_buffer(struct drm_framebuffer *fb, int x, int y,
+		void **vaddr, dma_addr_t *paddr, unsigned int *screen_width);
+struct drm_connector *omap_framebuffer_get_next_connector(
+		struct drm_framebuffer *fb, struct drm_connector *from);
+void omap_framebuffer_flush(struct drm_framebuffer *fb,
+		int x, int y, int w, int h);
+
+void omap_gem_init(struct drm_device *dev);
+void omap_gem_deinit(struct drm_device *dev);
+
+struct drm_gem_object *omap_gem_new(struct drm_device *dev,
+		union omap_gem_size gsize, uint32_t flags);
+int omap_gem_new_handle(struct drm_device *dev, struct drm_file *file,
+		union omap_gem_size gsize, uint32_t flags, uint32_t *handle);
+void omap_gem_free_object(struct drm_gem_object *obj);
+int omap_gem_init_object(struct drm_gem_object *obj);
+void *omap_gem_vaddr(struct drm_gem_object *obj);
+int omap_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev,
+		uint32_t handle, uint64_t *offset);
+int omap_gem_dumb_destroy(struct drm_file *file, struct drm_device *dev,
+		uint32_t handle);
+int omap_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
+		struct drm_mode_create_dumb *args);
+int omap_gem_mmap(struct file *filp, struct vm_area_struct *vma);
+int omap_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf);
+int omap_gem_op_start(struct drm_gem_object *obj, enum omap_gem_op op);
+int omap_gem_op_finish(struct drm_gem_object *obj, enum omap_gem_op op);
+int omap_gem_op_sync(struct drm_gem_object *obj, enum omap_gem_op op);
+int omap_gem_op_async(struct drm_gem_object *obj, enum omap_gem_op op,
+		void (*fxn)(void *arg), void *arg);
+int omap_gem_roll(struct drm_gem_object *obj, uint32_t roll);
+int omap_gem_get_paddr(struct drm_gem_object *obj,
+		dma_addr_t *paddr, bool remap);
+int omap_gem_put_paddr(struct drm_gem_object *obj);
+uint64_t omap_gem_mmap_offset(struct drm_gem_object *obj);
+size_t omap_gem_mmap_size(struct drm_gem_object *obj);
+
+static inline int align_pitch(int pitch, int width, int bpp)
+{
+	int bytespp = (bpp + 7) / 8;
+	/* in case someone tries to feed us a completely bogus stride: */
+	pitch = max(pitch, width * bytespp);
+	/* PVR needs alignment to 8 pixels.. right now that is the most
+	 * restrictive stride requirement..
+	 */
+	return ALIGN(pitch, 8 * bytespp);
+}
+
+#endif /* __OMAP_DRV_H__ */
diff --git a/drivers/staging/omapdrm/omap_encoder.c b/drivers/staging/omapdrm/omap_encoder.c
new file mode 100644
index 000000000000..06c52cb62d2f
--- /dev/null
+++ b/drivers/staging/omapdrm/omap_encoder.c
@@ -0,0 +1,171 @@
+/*
+ * drivers/staging/omapdrm/omap_encoder.c
+ *
+ * Copyright (C) 2011 Texas Instruments
+ * Author: Rob Clark <rob@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "omap_drv.h"
+
+#include "drm_crtc.h"
+#include "drm_crtc_helper.h"
+
+/*
+ * encoder funcs
+ */
+
+#define to_omap_encoder(x) container_of(x, struct omap_encoder, base)
+
+struct omap_encoder {
+	struct drm_encoder base;
+	struct omap_overlay_manager *mgr;
+};
+
+static void omap_encoder_destroy(struct drm_encoder *encoder)
+{
+	struct omap_encoder *omap_encoder = to_omap_encoder(encoder);
+	DBG("%s", omap_encoder->mgr->name);
+	drm_encoder_cleanup(encoder);
+	kfree(omap_encoder);
+}
+
+static void omap_encoder_dpms(struct drm_encoder *encoder, int mode)
+{
+	struct omap_encoder *omap_encoder = to_omap_encoder(encoder);
+	DBG("%s: %d", omap_encoder->mgr->name, mode);
+}
+
+static bool omap_encoder_mode_fixup(struct drm_encoder *encoder,
+				  struct drm_display_mode *mode,
+				  struct drm_display_mode *adjusted_mode)
+{
+	struct omap_encoder *omap_encoder = to_omap_encoder(encoder);
+	DBG("%s", omap_encoder->mgr->name);
+	return true;
+}
+
+static void omap_encoder_mode_set(struct drm_encoder *encoder,
+				struct drm_display_mode *mode,
+				struct drm_display_mode *adjusted_mode)
+{
+	struct omap_encoder *omap_encoder = to_omap_encoder(encoder);
+	struct drm_device *dev = encoder->dev;
+	struct omap_drm_private *priv = dev->dev_private;
+	int i;
+
+	mode = adjusted_mode;
+
+	DBG("%s: set mode: %dx%d", omap_encoder->mgr->name,
+			mode->hdisplay, mode->vdisplay);
+
+	for (i = 0; i < priv->num_connectors; i++) {
+		struct drm_connector *connector = priv->connectors[i];
+		if (connector->encoder == encoder) {
+			omap_connector_mode_set(connector, mode);
+		}
+	}
+}
+
+static void omap_encoder_prepare(struct drm_encoder *encoder)
+{
+	struct omap_encoder *omap_encoder = to_omap_encoder(encoder);
+	struct drm_encoder_helper_funcs *encoder_funcs =
+				encoder->helper_private;
+	DBG("%s", omap_encoder->mgr->name);
+	encoder_funcs->dpms(encoder, DRM_MODE_DPMS_OFF);
+}
+
+static void omap_encoder_commit(struct drm_encoder *encoder)
+{
+	struct omap_encoder *omap_encoder = to_omap_encoder(encoder);
+	struct drm_encoder_helper_funcs *encoder_funcs =
+				encoder->helper_private;
+	DBG("%s", omap_encoder->mgr->name);
+	omap_encoder->mgr->apply(omap_encoder->mgr);
+	encoder_funcs->dpms(encoder, DRM_MODE_DPMS_ON);
+}
+
+static const struct drm_encoder_funcs omap_encoder_funcs = {
+	.destroy = omap_encoder_destroy,
+};
+
+static const struct drm_encoder_helper_funcs omap_encoder_helper_funcs = {
+	.dpms = omap_encoder_dpms,
+	.mode_fixup = omap_encoder_mode_fixup,
+	.mode_set = omap_encoder_mode_set,
+	.prepare = omap_encoder_prepare,
+	.commit = omap_encoder_commit,
+};
+
+struct omap_overlay_manager *omap_encoder_get_manager(
+		struct drm_encoder *encoder)
+{
+	struct omap_encoder *omap_encoder = to_omap_encoder(encoder);
+	return omap_encoder->mgr;
+}
+
+/* initialize encoder */
+struct drm_encoder *omap_encoder_init(struct drm_device *dev,
+		struct omap_overlay_manager *mgr)
+{
+	struct drm_encoder *encoder = NULL;
+	struct omap_encoder *omap_encoder;
+	struct omap_overlay_manager_info info;
+	int ret;
+
+	DBG("%s", mgr->name);
+
+	omap_encoder = kzalloc(sizeof(*omap_encoder), GFP_KERNEL);
+	if (!omap_encoder) {
+		dev_err(dev->dev, "could not allocate encoder\n");
+		goto fail;
+	}
+
+	omap_encoder->mgr = mgr;
+	encoder = &omap_encoder->base;
+
+	drm_encoder_init(dev, encoder, &omap_encoder_funcs,
+			 DRM_MODE_ENCODER_TMDS);
+	drm_encoder_helper_add(encoder, &omap_encoder_helper_funcs);
+
+	mgr->get_manager_info(mgr, &info);
+
+	/* TODO: fix hard-coded setup.. */
+	info.default_color = 0x00000000;
+	info.trans_key = 0x00000000;
+	info.trans_key_type = OMAP_DSS_COLOR_KEY_GFX_DST;
+	info.trans_enabled = false;
+
+	ret = mgr->set_manager_info(mgr, &info);
+	if (ret) {
+		dev_err(dev->dev, "could not set manager info\n");
+		goto fail;
+	}
+
+	ret = mgr->apply(mgr);
+	if (ret) {
+		dev_err(dev->dev, "could not apply\n");
+		goto fail;
+	}
+
+	return encoder;
+
+fail:
+	if (encoder) {
+		omap_encoder_destroy(encoder);
+	}
+
+	return NULL;
+}
diff --git a/drivers/staging/omapdrm/omap_fb.c b/drivers/staging/omapdrm/omap_fb.c
new file mode 100644
index 000000000000..0b50c5b3b564
--- /dev/null
+++ b/drivers/staging/omapdrm/omap_fb.c
@@ -0,0 +1,243 @@
+/*
+ * drivers/staging/omapdrm/omap_fb.c
+ *
+ * Copyright (C) 2011 Texas Instruments
+ * Author: Rob Clark <rob@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "omap_drv.h"
+
+#include "drm_crtc.h"
+#include "drm_crtc_helper.h"
+
+
+/*
+ * framebuffer funcs
+ */
+
+#define to_omap_framebuffer(x) container_of(x, struct omap_framebuffer, base)
+
+struct omap_framebuffer {
+	struct drm_framebuffer base;
+	struct drm_gem_object *bo;
+	int size;
+	dma_addr_t paddr;
+};
+
+static int omap_framebuffer_create_handle(struct drm_framebuffer *fb,
+		struct drm_file *file_priv,
+		unsigned int *handle)
+{
+	struct omap_framebuffer *omap_fb = to_omap_framebuffer(fb);
+    return drm_gem_handle_create(file_priv, omap_fb->bo, handle);
+}
+
+static void omap_framebuffer_destroy(struct drm_framebuffer *fb)
+{
+	struct drm_device *dev = fb->dev;
+	struct omap_framebuffer *omap_fb = to_omap_framebuffer(fb);
+
+	DBG("destroy: FB ID: %d (%p)", fb->base.id, fb);
+
+	drm_framebuffer_cleanup(fb);
+
+	if (omap_fb->bo) {
+		if (omap_fb->paddr && omap_gem_put_paddr(omap_fb->bo))
+			dev_err(dev->dev, "could not unmap!\n");
+		drm_gem_object_unreference_unlocked(omap_fb->bo);
+	}
+
+	kfree(omap_fb);
+}
+
+static int omap_framebuffer_dirty(struct drm_framebuffer *fb,
+		struct drm_file *file_priv, unsigned flags, unsigned color,
+		struct drm_clip_rect *clips, unsigned num_clips)
+{
+	int i;
+
+	for (i = 0; i < num_clips; i++) {
+		omap_framebuffer_flush(fb, clips[i].x1, clips[i].y1,
+					clips[i].x2 - clips[i].x1,
+					clips[i].y2 - clips[i].y1);
+	}
+
+	return 0;
+}
+
+static const struct drm_framebuffer_funcs omap_framebuffer_funcs = {
+	.create_handle = omap_framebuffer_create_handle,
+	.destroy = omap_framebuffer_destroy,
+	.dirty = omap_framebuffer_dirty,
+};
+
+/* returns the buffer size */
+int omap_framebuffer_get_buffer(struct drm_framebuffer *fb, int x, int y,
+		void **vaddr, dma_addr_t *paddr, unsigned int *screen_width)
+{
+	struct omap_framebuffer *omap_fb = to_omap_framebuffer(fb);
+	int bpp = fb->bits_per_pixel / 8;
+	unsigned long offset;
+
+	offset = (x * bpp) + (y * fb->pitch);
+
+	if (vaddr) {
+		void *bo_vaddr = omap_gem_vaddr(omap_fb->bo);
+		/* note: we can only count on having a vaddr for buffers that
+		 * are allocated physically contiguously to begin with (ie.
+		 * dma_alloc_coherent()).  But this should be ok because it
+		 * is only used by legacy fbdev
+		 */
+		BUG_ON(IS_ERR_OR_NULL(bo_vaddr));
+		*vaddr = bo_vaddr + offset;
+	}
+
+	*paddr = omap_fb->paddr + offset;
+	*screen_width = fb->pitch / bpp;
+
+	return omap_fb->size - offset;
+}
+
+struct drm_gem_object *omap_framebuffer_bo(struct drm_framebuffer *fb)
+{
+	struct omap_framebuffer *omap_fb = to_omap_framebuffer(fb);
+	return omap_fb->bo;
+}
+
+/* iterate thru all the connectors, returning ones that are attached
+ * to the same fb..
+ */
+struct drm_connector *omap_framebuffer_get_next_connector(
+		struct drm_framebuffer *fb, struct drm_connector *from)
+{
+	struct drm_device *dev = fb->dev;
+	struct list_head *connector_list = &dev->mode_config.connector_list;
+	struct drm_connector *connector = from;
+
+	if (!from) {
+		return list_first_entry(connector_list, typeof(*from), head);
+	}
+
+	list_for_each_entry_from(connector, connector_list, head) {
+		if (connector != from) {
+			struct drm_encoder *encoder = connector->encoder;
+			struct drm_crtc *crtc = encoder ? encoder->crtc : NULL;
+			if (crtc && crtc->fb == fb) {
+				return connector;
+			}
+		}
+	}
+
+	return NULL;
+}
+
+/* flush an area of the framebuffer (in case of manual update display that
+ * is not automatically flushed)
+ */
+void omap_framebuffer_flush(struct drm_framebuffer *fb,
+		int x, int y, int w, int h)
+{
+	struct drm_connector *connector = NULL;
+
+	VERB("flush: %d,%d %dx%d, fb=%p", x, y, w, h, fb);
+
+	while ((connector = omap_framebuffer_get_next_connector(fb, connector))) {
+		/* only consider connectors that are part of a chain */
+		if (connector->encoder && connector->encoder->crtc) {
+			/* TODO: maybe this should propagate thru the crtc who
+			 * could do the coordinate translation..
+			 */
+			struct drm_crtc *crtc = connector->encoder->crtc;
+			int cx = max(0, x - crtc->x);
+			int cy = max(0, y - crtc->y);
+			int cw = w + (x - crtc->x) - cx;
+			int ch = h + (y - crtc->y) - cy;
+
+			omap_connector_flush(connector, cx, cy, cw, ch);
+		}
+	}
+}
+
+struct drm_framebuffer *omap_framebuffer_create(struct drm_device *dev,
+		struct drm_file *file, struct drm_mode_fb_cmd *mode_cmd)
+{
+	struct drm_gem_object *bo;
+	struct drm_framebuffer *fb;
+	bo = drm_gem_object_lookup(dev, file, mode_cmd->handle);
+	if (!bo) {
+		return ERR_PTR(-ENOENT);
+	}
+	fb = omap_framebuffer_init(dev, mode_cmd, bo);
+	if (!fb) {
+		return ERR_PTR(-ENOMEM);
+	}
+	return fb;
+}
+
+struct drm_framebuffer *omap_framebuffer_init(struct drm_device *dev,
+		struct drm_mode_fb_cmd *mode_cmd, struct drm_gem_object *bo)
+{
+	struct omap_framebuffer *omap_fb;
+	struct drm_framebuffer *fb = NULL;
+	int size, ret;
+
+	DBG("create framebuffer: dev=%p, mode_cmd=%p (%dx%d@%d)",
+			dev, mode_cmd, mode_cmd->width, mode_cmd->height,
+			mode_cmd->bpp);
+
+	/* in case someone tries to feed us a completely bogus stride: */
+	mode_cmd->pitch = align_pitch(mode_cmd->pitch,
+			mode_cmd->width, mode_cmd->bpp);
+
+	omap_fb = kzalloc(sizeof(*omap_fb), GFP_KERNEL);
+	if (!omap_fb) {
+		dev_err(dev->dev, "could not allocate fb\n");
+		goto fail;
+	}
+
+	fb = &omap_fb->base;
+	ret = drm_framebuffer_init(dev, fb, &omap_framebuffer_funcs);
+	if (ret) {
+		dev_err(dev->dev, "framebuffer init failed: %d\n", ret);
+		goto fail;
+	}
+
+	DBG("create: FB ID: %d (%p)", fb->base.id, fb);
+
+	size = PAGE_ALIGN(mode_cmd->pitch * mode_cmd->height);
+
+	if (size > bo->size) {
+		dev_err(dev->dev, "provided buffer object is too small!\n");
+		goto fail;
+	}
+
+	omap_fb->bo = bo;
+	omap_fb->size = size;
+
+	if (omap_gem_get_paddr(bo, &omap_fb->paddr, true)) {
+		dev_err(dev->dev, "could not map (paddr)!\n");
+		goto fail;
+	}
+
+	drm_helper_mode_fill_fb_struct(fb, mode_cmd);
+
+	return fb;
+
+fail:
+	if (fb) {
+		omap_framebuffer_destroy(fb);
+	}
+	return NULL;
+}
diff --git a/drivers/staging/omapdrm/omap_fbdev.c b/drivers/staging/omapdrm/omap_fbdev.c
new file mode 100644
index 000000000000..093ae2f87b20
--- /dev/null
+++ b/drivers/staging/omapdrm/omap_fbdev.c
@@ -0,0 +1,372 @@
+/*
+ * drivers/staging/omapdrm/omap_fbdev.c
+ *
+ * Copyright (C) 2011 Texas Instruments
+ * Author: Rob Clark <rob@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "omap_drv.h"
+
+#include "drm_crtc.h"
+#include "drm_fb_helper.h"
+
+MODULE_PARM_DESC(ywrap, "Enable ywrap scrolling (omap44xx and later, default 'y')");
+static bool ywrap_enabled = true;
+module_param_named(ywrap, ywrap_enabled, bool, 0644);
+
+/*
+ * fbdev funcs, to implement legacy fbdev interface on top of drm driver
+ */
+
+#define to_omap_fbdev(x) container_of(x, struct omap_fbdev, base)
+
+struct omap_fbdev {
+	struct drm_fb_helper base;
+	struct drm_framebuffer *fb;
+	struct drm_gem_object *bo;
+	bool ywrap_enabled;
+};
+
+static void omap_fbdev_flush(struct fb_info *fbi, int x, int y, int w, int h);
+static struct drm_fb_helper *get_fb(struct fb_info *fbi);
+
+static ssize_t omap_fbdev_write(struct fb_info *fbi, const char __user *buf,
+		size_t count, loff_t *ppos)
+{
+	ssize_t res;
+
+	res = fb_sys_write(fbi, buf, count, ppos);
+	omap_fbdev_flush(fbi, 0, 0, fbi->var.xres, fbi->var.yres);
+
+	return res;
+}
+
+static void omap_fbdev_fillrect(struct fb_info *fbi,
+		const struct fb_fillrect *rect)
+{
+	sys_fillrect(fbi, rect);
+	omap_fbdev_flush(fbi, rect->dx, rect->dy, rect->width, rect->height);
+}
+
+static void omap_fbdev_copyarea(struct fb_info *fbi,
+		const struct fb_copyarea *area)
+{
+	sys_copyarea(fbi, area);
+	omap_fbdev_flush(fbi, area->dx, area->dy, area->width, area->height);
+}
+
+static void omap_fbdev_imageblit(struct fb_info *fbi,
+		const struct fb_image *image)
+{
+	sys_imageblit(fbi, image);
+	omap_fbdev_flush(fbi, image->dx, image->dy,
+				image->width, image->height);
+}
+
+static int omap_fbdev_pan_display(struct fb_var_screeninfo *var,
+		struct fb_info *fbi)
+{
+	struct drm_fb_helper *helper = get_fb(fbi);
+	struct omap_fbdev *fbdev = to_omap_fbdev(helper);
+	int npages;
+
+	if (!helper)
+		goto fallback;
+
+	if (!fbdev->ywrap_enabled)
+		goto fallback;
+
+	/* DMM roll shifts in 4K pages: */
+	npages = fbi->fix.line_length >> PAGE_SHIFT;
+	omap_gem_roll(fbdev->bo, var->yoffset * npages);
+
+	return 0;
+
+fallback:
+	return drm_fb_helper_pan_display(var, fbi);
+}
+
+static struct fb_ops omap_fb_ops = {
+	.owner = THIS_MODULE,
+
+	/* Note: to properly handle manual update displays, we wrap the
+	 * basic fbdev ops which write to the framebuffer
+	 */
+	.fb_read = fb_sys_read,
+	.fb_write = omap_fbdev_write,
+	.fb_fillrect = omap_fbdev_fillrect,
+	.fb_copyarea = omap_fbdev_copyarea,
+	.fb_imageblit = omap_fbdev_imageblit,
+
+	.fb_check_var = drm_fb_helper_check_var,
+	.fb_set_par = drm_fb_helper_set_par,
+	.fb_pan_display = omap_fbdev_pan_display,
+	.fb_blank = drm_fb_helper_blank,
+	.fb_setcmap = drm_fb_helper_setcmap,
+
+	.fb_debug_enter = drm_fb_helper_debug_enter,
+	.fb_debug_leave = drm_fb_helper_debug_leave,
+};
+
+static int omap_fbdev_create(struct drm_fb_helper *helper,
+		struct drm_fb_helper_surface_size *sizes)
+{
+	struct omap_fbdev *fbdev = to_omap_fbdev(helper);
+	struct drm_device *dev = helper->dev;
+	struct omap_drm_private *priv = dev->dev_private;
+	struct drm_framebuffer *fb = NULL;
+	union omap_gem_size gsize;
+	struct fb_info *fbi = NULL;
+	struct drm_mode_fb_cmd mode_cmd = {0};
+	dma_addr_t paddr;
+	void __iomem *vaddr;
+	int size, screen_width;
+	int ret;
+
+	/* only doing ARGB32 since this is what is needed to alpha-blend
+	 * with video overlays:
+	 */
+	sizes->surface_bpp = 32;
+	sizes->surface_depth = 32;
+
+	DBG("create fbdev: %dx%d@%d (%dx%d)", sizes->surface_width,
+			sizes->surface_height, sizes->surface_bpp,
+			sizes->fb_width, sizes->fb_height);
+
+	mode_cmd.width = sizes->surface_width;
+	mode_cmd.height = sizes->surface_height;
+
+	mode_cmd.bpp = sizes->surface_bpp;
+	mode_cmd.depth = sizes->surface_depth;
+
+	mode_cmd.pitch = align_pitch(
+			mode_cmd.width * ((mode_cmd.bpp + 7) / 8),
+			mode_cmd.width, mode_cmd.bpp);
+
+	fbdev->ywrap_enabled = priv->has_dmm && ywrap_enabled;
+	if (fbdev->ywrap_enabled) {
+		/* need to align pitch to page size if using DMM scrolling */
+		mode_cmd.pitch = ALIGN(mode_cmd.pitch, PAGE_SIZE);
+	}
+
+	/* allocate backing bo */
+	gsize = (union omap_gem_size){
+		.bytes = PAGE_ALIGN(mode_cmd.pitch * mode_cmd.height),
+	};
+	DBG("allocating %d bytes for fb %d", gsize.bytes, dev->primary->index);
+	fbdev->bo = omap_gem_new(dev, gsize, OMAP_BO_SCANOUT | OMAP_BO_WC);
+	if (!fbdev->bo) {
+		dev_err(dev->dev, "failed to allocate buffer object\n");
+		goto fail;
+	}
+
+	fb = omap_framebuffer_init(dev, &mode_cmd, fbdev->bo);
+	if (!fb) {
+		dev_err(dev->dev, "failed to allocate fb\n");
+		ret = -ENOMEM;
+		goto fail;
+	}
+
+	mutex_lock(&dev->struct_mutex);
+
+	fbi = framebuffer_alloc(0, dev->dev);
+	if (!fbi) {
+		dev_err(dev->dev, "failed to allocate fb info\n");
+		ret = -ENOMEM;
+		goto fail_unlock;
+	}
+
+	DBG("fbi=%p, dev=%p", fbi, dev);
+
+	fbdev->fb = fb;
+	helper->fb = fb;
+	helper->fbdev = fbi;
+
+	fbi->par = helper;
+	fbi->flags = FBINFO_DEFAULT;
+	fbi->fbops = &omap_fb_ops;
+
+	strcpy(fbi->fix.id, MODULE_NAME);
+
+	ret = fb_alloc_cmap(&fbi->cmap, 256, 0);
+	if (ret) {
+		ret = -ENOMEM;
+		goto fail_unlock;
+	}
+
+	drm_fb_helper_fill_fix(fbi, fb->pitch, fb->depth);
+	drm_fb_helper_fill_var(fbi, helper, sizes->fb_width, sizes->fb_height);
+
+	size = omap_framebuffer_get_buffer(fb, 0, 0,
+			&vaddr, &paddr, &screen_width);
+
+	dev->mode_config.fb_base = paddr;
+
+	fbi->screen_base = vaddr;
+	fbi->screen_size = size;
+	fbi->fix.smem_start = paddr;
+	fbi->fix.smem_len = size;
+
+	/* if we have DMM, then we can use it for scrolling by just
+	 * shuffling pages around in DMM rather than doing sw blit.
+	 */
+	if (fbdev->ywrap_enabled) {
+		DRM_INFO("Enabling DMM ywrap scrolling\n");
+		fbi->flags |= FBINFO_HWACCEL_YWRAP | FBINFO_READS_FAST;
+		fbi->fix.ywrapstep = 1;
+	}
+
+
+	DBG("par=%p, %dx%d", fbi->par, fbi->var.xres, fbi->var.yres);
+	DBG("allocated %dx%d fb", fbdev->fb->width, fbdev->fb->height);
+
+	mutex_unlock(&dev->struct_mutex);
+
+	return 0;
+
+fail_unlock:
+	mutex_unlock(&dev->struct_mutex);
+fail:
+
+	if (ret) {
+		if (fbi)
+			framebuffer_release(fbi);
+		if (fb)
+			fb->funcs->destroy(fb);
+	}
+
+	return ret;
+}
+
+static void omap_crtc_fb_gamma_set(struct drm_crtc *crtc,
+		u16 red, u16 green, u16 blue, int regno)
+{
+	DBG("fbdev: set gamma");
+}
+
+static void omap_crtc_fb_gamma_get(struct drm_crtc *crtc,
+		u16 *red, u16 *green, u16 *blue, int regno)
+{
+	DBG("fbdev: get gamma");
+}
+
+static int omap_fbdev_probe(struct drm_fb_helper *helper,
+		struct drm_fb_helper_surface_size *sizes)
+{
+	int new_fb = 0;
+	int ret;
+
+	if (!helper->fb) {
+		ret = omap_fbdev_create(helper, sizes);
+		if (ret)
+			return ret;
+		new_fb = 1;
+	}
+	return new_fb;
+}
+
+static struct drm_fb_helper_funcs omap_fb_helper_funcs = {
+	.gamma_set = omap_crtc_fb_gamma_set,
+	.gamma_get = omap_crtc_fb_gamma_get,
+	.fb_probe = omap_fbdev_probe,
+};
+
+static struct drm_fb_helper *get_fb(struct fb_info *fbi)
+{
+	if (!fbi || strcmp(fbi->fix.id, MODULE_NAME)) {
+		/* these are not the fb's you're looking for */
+		return NULL;
+	}
+	return fbi->par;
+}
+
+/* flush an area of the framebuffer (in case of manual update display that
+ * is not automatically flushed)
+ */
+static void omap_fbdev_flush(struct fb_info *fbi, int x, int y, int w, int h)
+{
+	struct drm_fb_helper *helper = get_fb(fbi);
+
+	if (!helper)
+		return;
+
+	VERB("flush fbdev: %d,%d %dx%d, fbi=%p", x, y, w, h, fbi);
+
+	omap_framebuffer_flush(helper->fb, x, y, w, h);
+}
+
+/* initialize fbdev helper */
+struct drm_fb_helper *omap_fbdev_init(struct drm_device *dev)
+{
+	struct omap_drm_private *priv = dev->dev_private;
+	struct omap_fbdev *fbdev = NULL;
+	struct drm_fb_helper *helper;
+	int ret = 0;
+
+	fbdev = kzalloc(sizeof(*fbdev), GFP_KERNEL);
+	if (!fbdev) {
+		dev_err(dev->dev, "could not allocate fbdev\n");
+		goto fail;
+	}
+
+	helper = &fbdev->base;
+
+	helper->funcs = &omap_fb_helper_funcs;
+
+	ret = drm_fb_helper_init(dev, helper,
+			priv->num_crtcs, priv->num_connectors);
+	if (ret) {
+		dev_err(dev->dev, "could not init fbdev: ret=%d\n", ret);
+		goto fail;
+	}
+
+	drm_fb_helper_single_add_all_connectors(helper);
+	drm_fb_helper_initial_config(helper, 32);
+
+	priv->fbdev = helper;
+
+	return helper;
+
+fail:
+	kfree(fbdev);
+	return NULL;
+}
+
+void omap_fbdev_free(struct drm_device *dev)
+{
+	struct omap_drm_private *priv = dev->dev_private;
+	struct drm_fb_helper *helper = priv->fbdev;
+	struct omap_fbdev *fbdev;
+	struct fb_info *fbi;
+
+	DBG();
+
+	fbi = helper->fbdev;
+
+	unregister_framebuffer(fbi);
+	framebuffer_release(fbi);
+
+	drm_fb_helper_fini(helper);
+
+	fbdev = to_omap_fbdev(priv->fbdev);
+
+	kfree(fbdev);
+
+	/* this will free the backing object */
+	if (fbdev->fb)
+		fbdev->fb->funcs->destroy(fbdev->fb);
+
+	priv->fbdev = NULL;
+}
diff --git a/drivers/staging/omapdrm/omap_gem.c b/drivers/staging/omapdrm/omap_gem.c
new file mode 100644
index 000000000000..e0ebd1d139f6
--- /dev/null
+++ b/drivers/staging/omapdrm/omap_gem.c
@@ -0,0 +1,1231 @@
+/*
+ * drivers/staging/omapdrm/omap_gem.c
+ *
+ * Copyright (C) 2011 Texas Instruments
+ * Author: Rob Clark <rob.clark@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#include <linux/spinlock.h>
+#include <linux/shmem_fs.h>
+
+#include "omap_drv.h"
+#include "omap_dmm_tiler.h"
+
+/* remove these once drm core helpers are merged */
+struct page ** _drm_gem_get_pages(struct drm_gem_object *obj, gfp_t gfpmask);
+void _drm_gem_put_pages(struct drm_gem_object *obj, struct page **pages,
+		bool dirty, bool accessed);
+int _drm_gem_create_mmap_offset_size(struct drm_gem_object *obj, size_t size);
+
+/*
+ * GEM buffer object implementation.
+ */
+
+#define to_omap_bo(x) container_of(x, struct omap_gem_object, base)
+
+/* note: we use upper 8 bits of flags for driver-internal flags: */
+#define OMAP_BO_DMA			0x01000000	/* actually is physically contiguous */
+#define OMAP_BO_EXT_SYNC	0x02000000	/* externally allocated sync object */
+#define OMAP_BO_EXT_MEM		0x04000000	/* externally allocated memory */
+
+
+struct omap_gem_object {
+	struct drm_gem_object base;
+
+	uint32_t flags;
+
+	/** width/height for tiled formats (rounded up to slot boundaries) */
+	uint16_t width, height;
+
+	/** roll applied when mapping to DMM */
+	uint32_t roll;
+
+	/**
+	 * If buffer is allocated physically contiguous, the OMAP_BO_DMA flag
+	 * is set and the paddr is valid.  Also if the buffer is remapped in
+	 * TILER and paddr_cnt > 0, then paddr is valid.  But if you are using
+	 * the physical address and OMAP_BO_DMA is not set, then you should
+	 * be going thru omap_gem_{get,put}_paddr() to ensure the mapping is
+	 * not removed from under your feet.
+	 *
+	 * Note that OMAP_BO_SCANOUT is a hint from userspace that DMA capable
+	 * buffer is requested, but doesn't mean that it is.  Use the
+	 * OMAP_BO_DMA flag to determine if the buffer has a DMA capable
+	 * physical address.
+	 */
+	dma_addr_t paddr;
+
+	/**
+	 * # of users of paddr
+	 */
+	uint32_t paddr_cnt;
+
+	/**
+	 * tiler block used when buffer is remapped in DMM/TILER.
+	 */
+	struct tiler_block *block;
+
+	/**
+	 * Array of backing pages, if allocated.  Note that pages are never
+	 * allocated for buffers originally allocated from contiguous memory
+	 */
+	struct page **pages;
+
+	/** addresses corresponding to pages in above array */
+	dma_addr_t *addrs;
+
+	/**
+	 * Virtual address, if mapped.
+	 */
+	void *vaddr;
+
+	/**
+	 * sync-object allocated on demand (if needed)
+	 *
+	 * Per-buffer sync-object for tracking pending and completed hw/dma
+	 * read and write operations.  The layout in memory is dictated by
+	 * the SGX firmware, which uses this information to stall the command
+	 * stream if a surface is not ready yet.
+	 *
+	 * Note that when buffer is used by SGX, the sync-object needs to be
+	 * allocated from a special heap of sync-objects.  This way many sync
+	 * objects can be packed in a page, and not waste GPU virtual address
+	 * space.  Because of this we have to have a omap_gem_set_sync_object()
+	 * API to allow replacement of the syncobj after it has (potentially)
+	 * already been allocated.  A bit ugly but I haven't thought of a
+	 * better alternative.
+	 */
+	struct {
+		uint32_t write_pending;
+		uint32_t write_complete;
+		uint32_t read_pending;
+		uint32_t read_complete;
+	} *sync;
+};
+
+/* To deal with userspace mmap'ings of 2d tiled buffers, which (a) are
+ * not necessarily pinned in TILER all the time, and (b) when they are
+ * they are not necessarily page aligned, we reserve one or more small
+ * regions in each of the 2d containers to use as a user-GART where we
+ * can create a second page-aligned mapping of parts of the buffer
+ * being accessed from userspace.
+ *
+ * Note that we could optimize slightly when we know that multiple
+ * tiler containers are backed by the same PAT.. but I'll leave that
+ * for later..
+ */
+#define NUM_USERGART_ENTRIES 2
+struct usergart_entry {
+	struct tiler_block *block;	/* the reserved tiler block */
+	dma_addr_t paddr;
+	struct drm_gem_object *obj;	/* the current pinned obj */
+	pgoff_t obj_pgoff;		/* page offset of obj currently
+					   mapped in */
+};
+static struct {
+	struct usergart_entry entry[NUM_USERGART_ENTRIES];
+	int height;				/* height in rows */
+	int height_shift;		/* ilog2(height in rows) */
+	int slot_shift;			/* ilog2(width per slot) */
+	int stride_pfn;			/* stride in pages */
+	int last;				/* index of last used entry */
+} *usergart;
+
+static void evict_entry(struct drm_gem_object *obj,
+		enum tiler_fmt fmt, struct usergart_entry *entry)
+{
+	if (obj->dev->dev_mapping) {
+		size_t size = PAGE_SIZE * usergart[fmt].height;
+		loff_t off = omap_gem_mmap_offset(obj) +
+				(entry->obj_pgoff << PAGE_SHIFT);
+		unmap_mapping_range(obj->dev->dev_mapping, off, size, 1);
+	}
+
+	entry->obj = NULL;
+}
+
+/* Evict a buffer from usergart, if it is mapped there */
+static void evict(struct drm_gem_object *obj)
+{
+	struct omap_gem_object *omap_obj = to_omap_bo(obj);
+
+	if (omap_obj->flags & OMAP_BO_TILED) {
+		enum tiler_fmt fmt = gem2fmt(omap_obj->flags);
+		int i;
+
+		if (!usergart)
+			return;
+
+		for (i = 0; i < NUM_USERGART_ENTRIES; i++) {
+			struct usergart_entry *entry = &usergart[fmt].entry[i];
+			if (entry->obj == obj)
+				evict_entry(obj, fmt, entry);
+		}
+	}
+}
+
+/* GEM objects can either be allocated from contiguous memory (in which
+ * case obj->filp==NULL), or w/ shmem backing (obj->filp!=NULL).  But non
+ * contiguous buffers can be remapped in TILER/DMM if they need to be
+ * contiguous... but we don't do this all the time to reduce pressure
+ * on TILER/DMM space when we know at allocation time that the buffer
+ * will need to be scanned out.
+ */
+static inline bool is_shmem(struct drm_gem_object *obj)
+{
+	return obj->filp != NULL;
+}
+
+static int get_pages(struct drm_gem_object *obj, struct page ***pages);
+
+static DEFINE_SPINLOCK(sync_lock);
+
+/** ensure backing pages are allocated */
+static int omap_gem_attach_pages(struct drm_gem_object *obj)
+{
+	struct omap_gem_object *omap_obj = to_omap_bo(obj);
+	struct page **pages;
+
+	WARN_ON(omap_obj->pages);
+
+	/* TODO: __GFP_DMA32 .. but somehow GFP_HIGHMEM is coming from the
+	 * mapping_gfp_mask(mapping) which conflicts w/ GFP_DMA32.. probably
+	 * we actually want CMA memory for it all anyways..
+	 */
+	pages = _drm_gem_get_pages(obj, GFP_KERNEL);
+	if (IS_ERR(pages)) {
+		dev_err(obj->dev->dev, "could not get pages: %ld\n", PTR_ERR(pages));
+		return PTR_ERR(pages);
+	}
+
+	/* for non-cached buffers, ensure the new pages are clean because
+	 * DSS, GPU, etc. are not cache coherent:
+	 */
+	if (omap_obj->flags & (OMAP_BO_WC|OMAP_BO_UNCACHED)) {
+		int i, npages = obj->size >> PAGE_SHIFT;
+		dma_addr_t *addrs = kmalloc(npages * sizeof(addrs), GFP_KERNEL);
+		for (i = 0; i < npages; i++) {
+			addrs[i] = dma_map_page(obj->dev->dev, pages[i],
+					0, PAGE_SIZE, DMA_BIDIRECTIONAL);
+		}
+		omap_obj->addrs = addrs;
+	}
+
+	omap_obj->pages = pages;
+	return 0;
+}
+
+/** release backing pages */
+static void omap_gem_detach_pages(struct drm_gem_object *obj)
+{
+	struct omap_gem_object *omap_obj = to_omap_bo(obj);
+
+	/* for non-cached buffers, ensure the new pages are clean because
+	 * DSS, GPU, etc. are not cache coherent:
+	 */
+	if (omap_obj->flags & (OMAP_BO_WC|OMAP_BO_UNCACHED)) {
+		int i, npages = obj->size >> PAGE_SHIFT;
+		for (i = 0; i < npages; i++) {
+			dma_unmap_page(obj->dev->dev, omap_obj->addrs[i],
+					PAGE_SIZE, DMA_BIDIRECTIONAL);
+		}
+		kfree(omap_obj->addrs);
+		omap_obj->addrs = NULL;
+	}
+
+	_drm_gem_put_pages(obj, omap_obj->pages, true, false);
+	omap_obj->pages = NULL;
+}
+
+/** get mmap offset */
+uint64_t omap_gem_mmap_offset(struct drm_gem_object *obj)
+{
+	if (!obj->map_list.map) {
+		/* Make it mmapable */
+		size_t size = omap_gem_mmap_size(obj);
+		int ret = _drm_gem_create_mmap_offset_size(obj, size);
+
+		if (ret) {
+			dev_err(obj->dev->dev, "could not allocate mmap offset");
+			return 0;
+		}
+	}
+
+	return (uint64_t)obj->map_list.hash.key << PAGE_SHIFT;
+}
+
+/** get mmap size */
+size_t omap_gem_mmap_size(struct drm_gem_object *obj)
+{
+	struct omap_gem_object *omap_obj = to_omap_bo(obj);
+	size_t size = obj->size;
+
+	if (omap_obj->flags & OMAP_BO_TILED) {
+		/* for tiled buffers, the virtual size has stride rounded up
+		 * to 4kb.. (to hide the fact that row n+1 might start 16kb or
+		 * 32kb later!).  But we don't back the entire buffer with
+		 * pages, only the valid picture part.. so need to adjust for
+		 * this in the size used to mmap and generate mmap offset
+		 */
+		size = tiler_vsize(gem2fmt(omap_obj->flags),
+				omap_obj->width, omap_obj->height);
+	}
+
+	return size;
+}
+
+
+/* Normal handling for the case of faulting in non-tiled buffers */
+static int fault_1d(struct drm_gem_object *obj,
+		struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+	struct omap_gem_object *omap_obj = to_omap_bo(obj);
+	unsigned long pfn;
+	pgoff_t pgoff;
+
+	/* We don't use vmf->pgoff since that has the fake offset: */
+	pgoff = ((unsigned long)vmf->virtual_address -
+			vma->vm_start) >> PAGE_SHIFT;
+
+	if (omap_obj->pages) {
+		pfn = page_to_pfn(omap_obj->pages[pgoff]);
+	} else {
+		BUG_ON(!(omap_obj->flags & OMAP_BO_DMA));
+		pfn = (omap_obj->paddr >> PAGE_SHIFT) + pgoff;
+	}
+
+	VERB("Inserting %p pfn %lx, pa %lx", vmf->virtual_address,
+			pfn, pfn << PAGE_SHIFT);
+
+	return vm_insert_mixed(vma, (unsigned long)vmf->virtual_address, pfn);
+}
+
+/* Special handling for the case of faulting in 2d tiled buffers */
+static int fault_2d(struct drm_gem_object *obj,
+		struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+	struct omap_gem_object *omap_obj = to_omap_bo(obj);
+	struct usergart_entry *entry;
+	enum tiler_fmt fmt = gem2fmt(omap_obj->flags);
+	struct page *pages[64];  /* XXX is this too much to have on stack? */
+	unsigned long pfn;
+	pgoff_t pgoff, base_pgoff;
+	void __user *vaddr;
+	int i, ret, slots;
+
+	if (!usergart)
+		return -EFAULT;
+
+	/* TODO: this fxn might need a bit tweaking to deal w/ tiled buffers
+	 * that are wider than 4kb
+	 */
+
+	/* We don't use vmf->pgoff since that has the fake offset: */
+	pgoff = ((unsigned long)vmf->virtual_address -
+			vma->vm_start) >> PAGE_SHIFT;
+
+	/* actual address we start mapping at is rounded down to previous slot
+	 * boundary in the y direction:
+	 */
+	base_pgoff = round_down(pgoff, usergart[fmt].height);
+	vaddr = vmf->virtual_address - ((pgoff - base_pgoff) << PAGE_SHIFT);
+	entry = &usergart[fmt].entry[usergart[fmt].last];
+
+	slots = omap_obj->width >> usergart[fmt].slot_shift;
+
+	/* evict previous buffer using this usergart entry, if any: */
+	if (entry->obj)
+		evict_entry(entry->obj, fmt, entry);
+
+	entry->obj = obj;
+	entry->obj_pgoff = base_pgoff;
+
+	/* now convert base_pgoff to phys offset from virt offset:
+	 */
+	base_pgoff = (base_pgoff >> usergart[fmt].height_shift) * slots;
+
+	/* map in pages.  Note the height of the slot is also equal to the
+	 * number of pages that need to be mapped in to fill 4kb wide CPU page.
+	 * If the height is 64, then 64 pages fill a 4kb wide by 64 row region.
+	 * Beyond the valid pixel part of the buffer, we set pages[i] to NULL to
+	 * get a dummy page mapped in.. if someone reads/writes it they will get
+	 * random/undefined content, but at least it won't be corrupting
+	 * whatever other random page used to be mapped in, or other undefined
+	 * behavior.
+	 */
+	memcpy(pages, &omap_obj->pages[base_pgoff],
+			sizeof(struct page *) * slots);
+	memset(pages + slots, 0,
+			sizeof(struct page *) * (usergart[fmt].height - slots));
+
+	ret = tiler_pin(entry->block, pages, ARRAY_SIZE(pages), 0, true);
+	if (ret) {
+		dev_err(obj->dev->dev, "failed to pin: %d\n", ret);
+		return ret;
+	}
+
+	i = usergart[fmt].height;
+	pfn = entry->paddr >> PAGE_SHIFT;
+
+	VERB("Inserting %p pfn %lx, pa %lx", vmf->virtual_address,
+			pfn, pfn << PAGE_SHIFT);
+
+	while (i--) {
+		vm_insert_mixed(vma, (unsigned long)vaddr, pfn);
+		pfn += usergart[fmt].stride_pfn;
+		vaddr += PAGE_SIZE;
+	}
+
+	/* simple round-robin: */
+	usergart[fmt].last = (usergart[fmt].last + 1) % NUM_USERGART_ENTRIES;
+
+	return 0;
+}
+
+/**
+ * omap_gem_fault		-	pagefault handler for GEM objects
+ * @vma: the VMA of the GEM object
+ * @vmf: fault detail
+ *
+ * Invoked when a fault occurs on an mmap of a GEM managed area. GEM
+ * does most of the work for us including the actual map/unmap calls
+ * but we need to do the actual page work.
+ *
+ * The VMA was set up by GEM. In doing so it also ensured that the
+ * vma->vm_private_data points to the GEM object that is backing this
+ * mapping.
+ */
+int omap_gem_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
+{
+	struct drm_gem_object *obj = vma->vm_private_data;
+	struct omap_gem_object *omap_obj = to_omap_bo(obj);
+	struct drm_device *dev = obj->dev;
+	struct page **pages;
+	int ret;
+
+	/* Make sure we don't parallel update on a fault, nor move or remove
+	 * something from beneath our feet
+	 */
+	mutex_lock(&dev->struct_mutex);
+
+	/* if a shmem backed object, make sure we have pages attached now */
+	ret = get_pages(obj, &pages);
+	if (ret) {
+		goto fail;
+	}
+
+	/* where should we do corresponding put_pages().. we are mapping
+	 * the original page, rather than thru a GART, so we can't rely
+	 * on eviction to trigger this.  But munmap() or all mappings should
+	 * probably trigger put_pages()?
+	 */
+
+	if (omap_obj->flags & OMAP_BO_TILED)
+		ret = fault_2d(obj, vma, vmf);
+	else
+		ret = fault_1d(obj, vma, vmf);
+
+
+fail:
+	mutex_unlock(&dev->struct_mutex);
+	switch (ret) {
+	case 0:
+	case -ERESTARTSYS:
+	case -EINTR:
+		return VM_FAULT_NOPAGE;
+	case -ENOMEM:
+		return VM_FAULT_OOM;
+	default:
+		return VM_FAULT_SIGBUS;
+	}
+}
+
+/** We override mainly to fix up some of the vm mapping flags.. */
+int omap_gem_mmap(struct file *filp, struct vm_area_struct *vma)
+{
+	struct omap_gem_object *omap_obj;
+	int ret;
+
+	ret = drm_gem_mmap(filp, vma);
+	if (ret) {
+		DBG("mmap failed: %d", ret);
+		return ret;
+	}
+
+	/* after drm_gem_mmap(), it is safe to access the obj */
+	omap_obj = to_omap_bo(vma->vm_private_data);
+
+	vma->vm_flags &= ~VM_PFNMAP;
+	vma->vm_flags |= VM_MIXEDMAP;
+
+	if (omap_obj->flags & OMAP_BO_WC) {
+		vma->vm_page_prot = pgprot_writecombine(vm_get_page_prot(vma->vm_flags));
+	} else if (omap_obj->flags & OMAP_BO_UNCACHED) {
+		vma->vm_page_prot = pgprot_noncached(vm_get_page_prot(vma->vm_flags));
+	} else {
+		vma->vm_page_prot = vm_get_page_prot(vma->vm_flags);
+	}
+
+	return ret;
+}
+
+/**
+ * omap_gem_dumb_create	-	create a dumb buffer
+ * @drm_file: our client file
+ * @dev: our device
+ * @args: the requested arguments copied from userspace
+ *
+ * Allocate a buffer suitable for use for a frame buffer of the
+ * form described by user space. Give userspace a handle by which
+ * to reference it.
+ */
+int omap_gem_dumb_create(struct drm_file *file, struct drm_device *dev,
+		struct drm_mode_create_dumb *args)
+{
+	union omap_gem_size gsize;
+
+	/* in case someone tries to feed us a completely bogus stride: */
+	args->pitch = align_pitch(args->pitch, args->width, args->bpp);
+	args->size = PAGE_ALIGN(args->pitch * args->height);
+
+	gsize = (union omap_gem_size){
+		.bytes = args->size,
+	};
+
+	return omap_gem_new_handle(dev, file, gsize,
+			OMAP_BO_SCANOUT | OMAP_BO_WC, &args->handle);
+}
+
+/**
+ * omap_gem_dumb_destroy	-	destroy a dumb buffer
+ * @file: client file
+ * @dev: our DRM device
+ * @handle: the object handle
+ *
+ * Destroy a handle that was created via omap_gem_dumb_create.
+ */
+int omap_gem_dumb_destroy(struct drm_file *file, struct drm_device *dev,
+		uint32_t handle)
+{
+	/* No special work needed, drop the reference and see what falls out */
+	return drm_gem_handle_delete(file, handle);
+}
+
+/**
+ * omap_gem_dumb_map	-	buffer mapping for dumb interface
+ * @file: our drm client file
+ * @dev: drm device
+ * @handle: GEM handle to the object (from dumb_create)
+ *
+ * Do the necessary setup to allow the mapping of the frame buffer
+ * into user memory. We don't have to do much here at the moment.
+ */
+int omap_gem_dumb_map_offset(struct drm_file *file, struct drm_device *dev,
+		uint32_t handle, uint64_t *offset)
+{
+	struct drm_gem_object *obj;
+	int ret = 0;
+
+	/* GEM does all our handle to object mapping */
+	obj = drm_gem_object_lookup(dev, file, handle);
+	if (obj == NULL) {
+		ret = -ENOENT;
+		goto fail;
+	}
+
+	*offset = omap_gem_mmap_offset(obj);
+
+	drm_gem_object_unreference_unlocked(obj);
+
+fail:
+	return ret;
+}
+
+/* Set scrolling position.  This allows us to implement fast scrolling
+ * for console.
+ */
+int omap_gem_roll(struct drm_gem_object *obj, uint32_t roll)
+{
+	struct omap_gem_object *omap_obj = to_omap_bo(obj);
+	uint32_t npages = obj->size >> PAGE_SHIFT;
+	int ret = 0;
+
+	if (roll > npages) {
+		dev_err(obj->dev->dev, "invalid roll: %d\n", roll);
+		return -EINVAL;
+	}
+
+	omap_obj->roll = roll;
+
+	if (in_atomic() || mutex_is_locked(&obj->dev->struct_mutex)) {
+		/* this can get called from fbcon in atomic context.. so
+		 * just ignore it and wait for next time called from
+		 * interruptible context to update the PAT.. the result
+		 * may be that user sees wrap-around instead of scrolling
+		 * momentarily on the screen.  If we wanted to be fancier
+		 * we could perhaps schedule some workqueue work at this
+		 * point.
+		 */
+		return 0;
+	}
+
+	mutex_lock(&obj->dev->struct_mutex);
+
+	/* if we aren't mapped yet, we don't need to do anything */
+	if (omap_obj->block) {
+		struct page **pages;
+		ret = get_pages(obj, &pages);
+		if (ret)
+			goto fail;
+		ret = tiler_pin(omap_obj->block, pages, npages, roll, true);
+		if (ret)
+			dev_err(obj->dev->dev, "could not repin: %d\n", ret);
+	}
+
+fail:
+	mutex_unlock(&obj->dev->struct_mutex);
+
+	return ret;
+}
+
+/* Get physical address for DMA.. if 'remap' is true, and the buffer is not
+ * already contiguous, remap it to pin in physically contiguous memory.. (ie.
+ * map in TILER)
+ */
+int omap_gem_get_paddr(struct drm_gem_object *obj,
+		dma_addr_t *paddr, bool remap)
+{
+	struct omap_drm_private *priv = obj->dev->dev_private;
+	struct omap_gem_object *omap_obj = to_omap_bo(obj);
+	int ret = 0;
+
+	mutex_lock(&obj->dev->struct_mutex);
+
+	if (remap && is_shmem(obj) && priv->has_dmm) {
+		if (omap_obj->paddr_cnt == 0) {
+			struct page **pages;
+			uint32_t npages = obj->size >> PAGE_SHIFT;
+			enum tiler_fmt fmt = gem2fmt(omap_obj->flags);
+			struct tiler_block *block;
+
+			BUG_ON(omap_obj->block);
+
+			ret = get_pages(obj, &pages);
+			if (ret)
+				goto fail;
+
+			if (omap_obj->flags & OMAP_BO_TILED) {
+				block = tiler_reserve_2d(fmt,
+						omap_obj->width,
+						omap_obj->height, 0);
+			} else {
+				block = tiler_reserve_1d(obj->size);
+			}
+
+			if (IS_ERR(block)) {
+				ret = PTR_ERR(block);
+				dev_err(obj->dev->dev,
+					"could not remap: %d (%d)\n", ret, fmt);
+				goto fail;
+			}
+
+			/* TODO: enable async refill.. */
+			ret = tiler_pin(block, pages, npages,
+					omap_obj->roll, true);
+			if (ret) {
+				tiler_release(block);
+				dev_err(obj->dev->dev,
+						"could not pin: %d\n", ret);
+				goto fail;
+			}
+
+			omap_obj->paddr = tiler_ssptr(block);
+			omap_obj->block = block;
+
+			DBG("got paddr: %08x", omap_obj->paddr);
+		}
+
+		omap_obj->paddr_cnt++;
+
+		*paddr = omap_obj->paddr;
+	} else if (omap_obj->flags & OMAP_BO_DMA) {
+		*paddr = omap_obj->paddr;
+	} else {
+		ret = -EINVAL;
+	}
+
+fail:
+	mutex_unlock(&obj->dev->struct_mutex);
+
+	return ret;
+}
+
+/* Release physical address, when DMA is no longer being performed.. this
+ * could potentially unpin and unmap buffers from TILER
+ */
+int omap_gem_put_paddr(struct drm_gem_object *obj)
+{
+	struct omap_gem_object *omap_obj = to_omap_bo(obj);
+	int ret = 0;
+
+	mutex_lock(&obj->dev->struct_mutex);
+	if (omap_obj->paddr_cnt > 0) {
+		omap_obj->paddr_cnt--;
+		if (omap_obj->paddr_cnt == 0) {
+			ret = tiler_unpin(omap_obj->block);
+			if (ret) {
+				dev_err(obj->dev->dev,
+					"could not unpin pages: %d\n", ret);
+				goto fail;
+			}
+			ret = tiler_release(omap_obj->block);
+			if (ret) {
+				dev_err(obj->dev->dev,
+					"could not release unmap: %d\n", ret);
+			}
+			omap_obj->block = NULL;
+		}
+	}
+fail:
+	mutex_unlock(&obj->dev->struct_mutex);
+	return ret;
+}
+
+/* acquire pages when needed (for example, for DMA where physically
+ * contiguous buffer is not required
+ */
+static int get_pages(struct drm_gem_object *obj, struct page ***pages)
+{
+	struct omap_gem_object *omap_obj = to_omap_bo(obj);
+	int ret = 0;
+
+	if (is_shmem(obj) && !omap_obj->pages) {
+		ret = omap_gem_attach_pages(obj);
+		if (ret) {
+			dev_err(obj->dev->dev, "could not attach pages\n");
+			return ret;
+		}
+	}
+
+	/* TODO: even phys-contig.. we should have a list of pages? */
+	*pages = omap_obj->pages;
+
+	return 0;
+}
+
+int omap_gem_get_pages(struct drm_gem_object *obj, struct page ***pages)
+{
+	int ret;
+	mutex_lock(&obj->dev->struct_mutex);
+	ret = get_pages(obj, pages);
+	mutex_unlock(&obj->dev->struct_mutex);
+	return ret;
+}
+
+/* release pages when DMA no longer being performed */
+int omap_gem_put_pages(struct drm_gem_object *obj)
+{
+	/* do something here if we dynamically attach/detach pages.. at
+	 * least they would no longer need to be pinned if everyone has
+	 * released the pages..
+	 */
+	return 0;
+}
+
+/* Get kernel virtual address for CPU access.. this more or less only
+ * exists for omap_fbdev.  This should be called with struct_mutex
+ * held.
+ */
+void *omap_gem_vaddr(struct drm_gem_object *obj)
+{
+	struct omap_gem_object *omap_obj = to_omap_bo(obj);
+	WARN_ON(! mutex_is_locked(&obj->dev->struct_mutex));
+	if (!omap_obj->vaddr) {
+		struct page **pages;
+		int ret = get_pages(obj, &pages);
+		if (ret)
+			return ERR_PTR(ret);
+		omap_obj->vaddr = vmap(pages, obj->size >> PAGE_SHIFT,
+				VM_MAP, pgprot_writecombine(PAGE_KERNEL));
+	}
+	return omap_obj->vaddr;
+}
+
+/* Buffer Synchronization:
+ */
+
+struct omap_gem_sync_waiter {
+	struct list_head list;
+	struct omap_gem_object *omap_obj;
+	enum omap_gem_op op;
+	uint32_t read_target, write_target;
+	/* notify called w/ sync_lock held */
+	void (*notify)(void *arg);
+	void *arg;
+};
+
+/* list of omap_gem_sync_waiter.. the notify fxn gets called back when
+ * the read and/or write target count is achieved which can call a user
+ * callback (ex. to kick 3d and/or 2d), wakeup blocked task (prep for
+ * cpu access), etc.
+ */
+static LIST_HEAD(waiters);
+
+static inline bool is_waiting(struct omap_gem_sync_waiter *waiter)
+{
+	struct omap_gem_object *omap_obj = waiter->omap_obj;
+	if ((waiter->op & OMAP_GEM_READ) &&
+			(omap_obj->sync->read_complete < waiter->read_target))
+		return true;
+	if ((waiter->op & OMAP_GEM_WRITE) &&
+			(omap_obj->sync->write_complete < waiter->write_target))
+		return true;
+	return false;
+}
+
+/* macro for sync debug.. */
+#define SYNCDBG 0
+#define SYNC(fmt, ...) do { if (SYNCDBG) \
+		printk(KERN_ERR "%s:%d: "fmt"\n", \
+				__func__, __LINE__, ##__VA_ARGS__); \
+	} while (0)
+
+
+static void sync_op_update(void)
+{
+	struct omap_gem_sync_waiter *waiter, *n;
+	list_for_each_entry_safe(waiter, n, &waiters, list) {
+		if (!is_waiting(waiter)) {
+			list_del(&waiter->list);
+			SYNC("notify: %p", waiter);
+			waiter->notify(waiter->arg);
+			kfree(waiter);
+		}
+	}
+}
+
+static inline int sync_op(struct drm_gem_object *obj,
+		enum omap_gem_op op, bool start)
+{
+	struct omap_gem_object *omap_obj = to_omap_bo(obj);
+	int ret = 0;
+
+	spin_lock(&sync_lock);
+
+	if (!omap_obj->sync) {
+		omap_obj->sync = kzalloc(sizeof(*omap_obj->sync), GFP_ATOMIC);
+		if (!omap_obj->sync) {
+			ret = -ENOMEM;
+			goto unlock;
+		}
+	}
+
+	if (start) {
+		if (op & OMAP_GEM_READ)
+			omap_obj->sync->read_pending++;
+		if (op & OMAP_GEM_WRITE)
+			omap_obj->sync->write_pending++;
+	} else {
+		if (op & OMAP_GEM_READ)
+			omap_obj->sync->read_complete++;
+		if (op & OMAP_GEM_WRITE)
+			omap_obj->sync->write_complete++;
+		sync_op_update();
+	}
+
+unlock:
+	spin_unlock(&sync_lock);
+
+	return ret;
+}
+
+/* it is a bit lame to handle updates in this sort of polling way, but
+ * in case of PVR, the GPU can directly update read/write complete
+ * values, and not really tell us which ones it updated.. this also
+ * means that sync_lock is not quite sufficient.  So we'll need to
+ * do something a bit better when it comes time to add support for
+ * separate 2d hw..
+ */
+void omap_gem_op_update(void)
+{
+	spin_lock(&sync_lock);
+	sync_op_update();
+	spin_unlock(&sync_lock);
+}
+
+/* mark the start of read and/or write operation */
+int omap_gem_op_start(struct drm_gem_object *obj, enum omap_gem_op op)
+{
+	return sync_op(obj, op, true);
+}
+
+int omap_gem_op_finish(struct drm_gem_object *obj, enum omap_gem_op op)
+{
+	return sync_op(obj, op, false);
+}
+
+static DECLARE_WAIT_QUEUE_HEAD(sync_event);
+
+static void sync_notify(void *arg)
+{
+	struct task_struct **waiter_task = arg;
+	*waiter_task = NULL;
+	wake_up_all(&sync_event);
+}
+
+int omap_gem_op_sync(struct drm_gem_object *obj, enum omap_gem_op op)
+{
+	struct omap_gem_object *omap_obj = to_omap_bo(obj);
+	int ret = 0;
+	if (omap_obj->sync) {
+		struct task_struct *waiter_task = current;
+		struct omap_gem_sync_waiter *waiter =
+				kzalloc(sizeof(*waiter), GFP_KERNEL);
+
+		if (!waiter) {
+			return -ENOMEM;
+		}
+
+		waiter->omap_obj = omap_obj;
+		waiter->op = op;
+		waiter->read_target = omap_obj->sync->read_pending;
+		waiter->write_target = omap_obj->sync->write_pending;
+		waiter->notify = sync_notify;
+		waiter->arg = &waiter_task;
+
+		spin_lock(&sync_lock);
+		if (is_waiting(waiter)) {
+			SYNC("waited: %p", waiter);
+			list_add_tail(&waiter->list, &waiters);
+			spin_unlock(&sync_lock);
+			ret = wait_event_interruptible(sync_event,
+					(waiter_task == NULL));
+			spin_lock(&sync_lock);
+			if (waiter_task) {
+				SYNC("interrupted: %p", waiter);
+				/* we were interrupted */
+				list_del(&waiter->list);
+				waiter_task = NULL;
+			} else {
+				/* freed in sync_op_update() */
+				waiter = NULL;
+			}
+		}
+		spin_unlock(&sync_lock);
+
+		if (waiter) {
+			kfree(waiter);
+		}
+	}
+	return ret;
+}
+
+/* call fxn(arg), either synchronously or asynchronously if the op
+ * is currently blocked..  fxn() can be called from any context
+ *
+ * (TODO for now fxn is called back from whichever context calls
+ * omap_gem_op_update().. but this could be better defined later
+ * if needed)
+ *
+ * TODO more code in common w/ _sync()..
+ */
+int omap_gem_op_async(struct drm_gem_object *obj, enum omap_gem_op op,
+		void (*fxn)(void *arg), void *arg)
+{
+	struct omap_gem_object *omap_obj = to_omap_bo(obj);
+	if (omap_obj->sync) {
+		struct omap_gem_sync_waiter *waiter =
+				kzalloc(sizeof(*waiter), GFP_ATOMIC);
+
+		if (!waiter) {
+			return -ENOMEM;
+		}
+
+		waiter->omap_obj = omap_obj;
+		waiter->op = op;
+		waiter->read_target = omap_obj->sync->read_pending;
+		waiter->write_target = omap_obj->sync->write_pending;
+		waiter->notify = fxn;
+		waiter->arg = arg;
+
+		spin_lock(&sync_lock);
+		if (is_waiting(waiter)) {
+			SYNC("waited: %p", waiter);
+			list_add_tail(&waiter->list, &waiters);
+			spin_unlock(&sync_lock);
+			return 0;
+		}
+
+		spin_unlock(&sync_lock);
+	}
+
+	/* no waiting.. */
+	fxn(arg);
+
+	return 0;
+}
+
+/* special API so PVR can update the buffer to use a sync-object allocated
+ * from it's sync-obj heap.  Only used for a newly allocated (from PVR's
+ * perspective) sync-object, so we overwrite the new syncobj w/ values
+ * from the already allocated syncobj (if there is one)
+ */
+int omap_gem_set_sync_object(struct drm_gem_object *obj, void *syncobj)
+{
+	struct omap_gem_object *omap_obj = to_omap_bo(obj);
+	int ret = 0;
+
+	spin_lock(&sync_lock);
+
+	if ((omap_obj->flags & OMAP_BO_EXT_SYNC) && !syncobj) {
+		/* clearing a previously set syncobj */
+		syncobj = kzalloc(sizeof(*omap_obj->sync), GFP_ATOMIC);
+		if (!syncobj) {
+			ret = -ENOMEM;
+			goto unlock;
+		}
+		memcpy(syncobj, omap_obj->sync, sizeof(*omap_obj->sync));
+		omap_obj->flags &= ~OMAP_BO_EXT_SYNC;
+		omap_obj->sync = syncobj;
+	} else if (syncobj && !(omap_obj->flags & OMAP_BO_EXT_SYNC)) {
+		/* replacing an existing syncobj */
+		if (omap_obj->sync) {
+			memcpy(syncobj, omap_obj->sync, sizeof(*omap_obj->sync));
+			kfree(omap_obj->sync);
+		}
+		omap_obj->flags |= OMAP_BO_EXT_SYNC;
+		omap_obj->sync = syncobj;
+	}
+
+unlock:
+	spin_unlock(&sync_lock);
+	return ret;
+}
+
+int omap_gem_init_object(struct drm_gem_object *obj)
+{
+	return -EINVAL;          /* unused */
+}
+
+/* don't call directly.. called from GEM core when it is time to actually
+ * free the object..
+ */
+void omap_gem_free_object(struct drm_gem_object *obj)
+{
+	struct drm_device *dev = obj->dev;
+	struct omap_gem_object *omap_obj = to_omap_bo(obj);
+
+	evict(obj);
+
+	if (obj->map_list.map) {
+		drm_gem_free_mmap_offset(obj);
+	}
+
+	/* don't free externally allocated backing memory */
+	if (!(omap_obj->flags & OMAP_BO_EXT_MEM)) {
+		if (omap_obj->pages) {
+			omap_gem_detach_pages(obj);
+		}
+		if (!is_shmem(obj)) {
+			dma_free_writecombine(dev->dev, obj->size,
+					omap_obj->vaddr, omap_obj->paddr);
+		} else if (omap_obj->vaddr) {
+			vunmap(omap_obj->vaddr);
+		}
+	}
+
+	/* don't free externally allocated syncobj */
+	if (!(omap_obj->flags & OMAP_BO_EXT_SYNC)) {
+		kfree(omap_obj->sync);
+	}
+
+	drm_gem_object_release(obj);
+
+	kfree(obj);
+}
+
+/* convenience method to construct a GEM buffer object, and userspace handle */
+int omap_gem_new_handle(struct drm_device *dev, struct drm_file *file,
+		union omap_gem_size gsize, uint32_t flags, uint32_t *handle)
+{
+	struct drm_gem_object *obj;
+	int ret;
+
+	obj = omap_gem_new(dev, gsize, flags);
+	if (!obj)
+		return -ENOMEM;
+
+	ret = drm_gem_handle_create(file, obj, handle);
+	if (ret) {
+		drm_gem_object_release(obj);
+		kfree(obj); /* TODO isn't there a dtor to call? just copying i915 */
+		return ret;
+	}
+
+	/* drop reference from allocate - handle holds it now */
+	drm_gem_object_unreference_unlocked(obj);
+
+	return 0;
+}
+
+/* GEM buffer object constructor */
+struct drm_gem_object *omap_gem_new(struct drm_device *dev,
+		union omap_gem_size gsize, uint32_t flags)
+{
+	struct omap_drm_private *priv = dev->dev_private;
+	struct omap_gem_object *omap_obj;
+	struct drm_gem_object *obj = NULL;
+	size_t size;
+	int ret;
+
+	if (flags & OMAP_BO_TILED) {
+		if (!usergart) {
+			dev_err(dev->dev, "Tiled buffers require DMM\n");
+			goto fail;
+		}
+
+		/* tiled buffers are always shmem paged backed.. when they are
+		 * scanned out, they are remapped into DMM/TILER
+		 */
+		flags &= ~OMAP_BO_SCANOUT;
+
+		/* currently don't allow cached buffers.. there is some caching
+		 * stuff that needs to be handled better
+		 */
+		flags &= ~(OMAP_BO_CACHED|OMAP_BO_UNCACHED);
+		flags |= OMAP_BO_WC;
+
+		/* align dimensions to slot boundaries... */
+		tiler_align(gem2fmt(flags),
+				&gsize.tiled.width, &gsize.tiled.height);
+
+		/* ...and calculate size based on aligned dimensions */
+		size = tiler_size(gem2fmt(flags),
+				gsize.tiled.width, gsize.tiled.height);
+	} else {
+		size = PAGE_ALIGN(gsize.bytes);
+	}
+
+	omap_obj = kzalloc(sizeof(*omap_obj), GFP_KERNEL);
+	if (!omap_obj) {
+		dev_err(dev->dev, "could not allocate GEM object\n");
+		goto fail;
+	}
+
+	obj = &omap_obj->base;
+
+	if ((flags & OMAP_BO_SCANOUT) && !priv->has_dmm) {
+		/* attempt to allocate contiguous memory if we don't
+		 * have DMM for remappign discontiguous buffers
+		 */
+		omap_obj->vaddr =  dma_alloc_writecombine(dev->dev, size,
+				&omap_obj->paddr, GFP_KERNEL);
+		if (omap_obj->vaddr) {
+			flags |= OMAP_BO_DMA;
+		}
+	}
+
+	omap_obj->flags = flags;
+
+	if (flags & OMAP_BO_TILED) {
+		omap_obj->width = gsize.tiled.width;
+		omap_obj->height = gsize.tiled.height;
+	}
+
+	if (flags & (OMAP_BO_DMA|OMAP_BO_EXT_MEM)) {
+		ret = drm_gem_private_object_init(dev, obj, size);
+	} else {
+		ret = drm_gem_object_init(dev, obj, size);
+	}
+
+	if (ret) {
+		goto fail;
+	}
+
+	return obj;
+
+fail:
+	if (obj) {
+		omap_gem_free_object(obj);
+	}
+	return NULL;
+}
+
+/* init/cleanup.. if DMM is used, we need to set some stuff up.. */
+void omap_gem_init(struct drm_device *dev)
+{
+	struct omap_drm_private *priv = dev->dev_private;
+	const enum tiler_fmt fmts[] = {
+			TILFMT_8BIT, TILFMT_16BIT, TILFMT_32BIT
+	};
+	int i, j, ret;
+
+	ret = omap_dmm_init(dev);
+	if (ret) {
+		/* DMM only supported on OMAP4 and later, so this isn't fatal */
+		dev_warn(dev->dev, "omap_dmm_init failed, disabling DMM\n");
+		return;
+	}
+
+	usergart = kzalloc(3 * sizeof(*usergart), GFP_KERNEL);
+	if (!usergart) {
+		dev_warn(dev->dev, "could not allocate usergart\n");
+		return;
+	}
+
+	/* reserve 4k aligned/wide regions for userspace mappings: */
+	for (i = 0; i < ARRAY_SIZE(fmts); i++) {
+		uint16_t h = 1, w = PAGE_SIZE >> i;
+		tiler_align(fmts[i], &w, &h);
+		/* note: since each region is 1 4kb page wide, and minimum
+		 * number of rows, the height ends up being the same as the
+		 * # of pages in the region
+		 */
+		usergart[i].height = h;
+		usergart[i].height_shift = ilog2(h);
+		usergart[i].stride_pfn = tiler_stride(fmts[i]) >> PAGE_SHIFT;
+		usergart[i].slot_shift = ilog2((PAGE_SIZE / h) >> i);
+		for (j = 0; j < NUM_USERGART_ENTRIES; j++) {
+			struct usergart_entry *entry = &usergart[i].entry[j];
+			struct tiler_block *block =
+					tiler_reserve_2d(fmts[i], w, h,
+							PAGE_SIZE);
+			if (IS_ERR(block)) {
+				dev_err(dev->dev,
+						"reserve failed: %d, %d, %ld\n",
+						i, j, PTR_ERR(block));
+				return;
+			}
+			entry->paddr = tiler_ssptr(block);
+			entry->block = block;
+
+			DBG("%d:%d: %dx%d: paddr=%08x stride=%d", i, j, w, h,
+					entry->paddr,
+					usergart[i].stride_pfn << PAGE_SHIFT);
+		}
+	}
+
+	priv->has_dmm = true;
+}
+
+void omap_gem_deinit(struct drm_device *dev)
+{
+	/* I believe we can rely on there being no more outstanding GEM
+	 * objects which could depend on usergart/dmm at this point.
+	 */
+	omap_dmm_remove();
+	kfree(usergart);
+}
diff --git a/drivers/staging/omapdrm/omap_gem_helpers.c b/drivers/staging/omapdrm/omap_gem_helpers.c
new file mode 100644
index 000000000000..29275c7209e9
--- /dev/null
+++ b/drivers/staging/omapdrm/omap_gem_helpers.c
@@ -0,0 +1,169 @@
+/*
+ * drivers/staging/omapdrm/omap_gem_helpers.c
+ *
+ * Copyright (C) 2011 Texas Instruments
+ * Author: Rob Clark <rob.clark@linaro.org>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+/* temporary copy of drm_gem_{get,put}_pages() until the
+ * "drm/gem: add functions to get/put pages" patch is merged..
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/shmem_fs.h>
+
+#include <drm/drmP.h>
+
+/**
+ * drm_gem_get_pages - helper to allocate backing pages for a GEM object
+ * @obj: obj in question
+ * @gfpmask: gfp mask of requested pages
+ */
+struct page ** _drm_gem_get_pages(struct drm_gem_object *obj, gfp_t gfpmask)
+{
+	struct inode *inode;
+	struct address_space *mapping;
+	struct page *p, **pages;
+	int i, npages;
+
+	/* This is the shared memory object that backs the GEM resource */
+	inode = obj->filp->f_path.dentry->d_inode;
+	mapping = inode->i_mapping;
+
+	npages = obj->size >> PAGE_SHIFT;
+
+	pages = drm_malloc_ab(npages, sizeof(struct page *));
+	if (pages == NULL)
+		return ERR_PTR(-ENOMEM);
+
+	gfpmask |= mapping_gfp_mask(mapping);
+
+	for (i = 0; i < npages; i++) {
+		p = shmem_read_mapping_page_gfp(mapping, i, gfpmask);
+		if (IS_ERR(p))
+			goto fail;
+		pages[i] = p;
+
+		/* There is a hypothetical issue w/ drivers that require
+		 * buffer memory in the low 4GB.. if the pages are un-
+		 * pinned, and swapped out, they can end up swapped back
+		 * in above 4GB.  If pages are already in memory, then
+		 * shmem_read_mapping_page_gfp will ignore the gfpmask,
+		 * even if the already in-memory page disobeys the mask.
+		 *
+		 * It is only a theoretical issue today, because none of
+		 * the devices with this limitation can be populated with
+		 * enough memory to trigger the issue.  But this BUG_ON()
+		 * is here as a reminder in case the problem with
+		 * shmem_read_mapping_page_gfp() isn't solved by the time
+		 * it does become a real issue.
+		 *
+		 * See this thread: http://lkml.org/lkml/2011/7/11/238
+		 */
+		BUG_ON((gfpmask & __GFP_DMA32) &&
+				(page_to_pfn(p) >= 0x00100000UL));
+	}
+
+	return pages;
+
+fail:
+	while (i--) {
+		page_cache_release(pages[i]);
+	}
+	drm_free_large(pages);
+	return ERR_PTR(PTR_ERR(p));
+}
+
+/**
+ * drm_gem_put_pages - helper to free backing pages for a GEM object
+ * @obj: obj in question
+ * @pages: pages to free
+ */
+void _drm_gem_put_pages(struct drm_gem_object *obj, struct page **pages,
+		bool dirty, bool accessed)
+{
+	int i, npages;
+
+	npages = obj->size >> PAGE_SHIFT;
+
+	for (i = 0; i < npages; i++) {
+		if (dirty)
+			set_page_dirty(pages[i]);
+
+		if (accessed)
+			mark_page_accessed(pages[i]);
+
+		/* Undo the reference we took when populating the table */
+		page_cache_release(pages[i]);
+	}
+
+	drm_free_large(pages);
+}
+
+int
+_drm_gem_create_mmap_offset_size(struct drm_gem_object *obj, size_t size)
+{
+	struct drm_device *dev = obj->dev;
+	struct drm_gem_mm *mm = dev->mm_private;
+	struct drm_map_list *list;
+	struct drm_local_map *map;
+	int ret = 0;
+
+	/* Set the object up for mmap'ing */
+	list = &obj->map_list;
+	list->map = kzalloc(sizeof(struct drm_map_list), GFP_KERNEL);
+	if (!list->map)
+		return -ENOMEM;
+
+	map = list->map;
+	map->type = _DRM_GEM;
+	map->size = size;
+	map->handle = obj;
+
+	/* Get a DRM GEM mmap offset allocated... */
+	list->file_offset_node = drm_mm_search_free(&mm->offset_manager,
+			size / PAGE_SIZE, 0, 0);
+
+	if (!list->file_offset_node) {
+		DRM_ERROR("failed to allocate offset for bo %d\n", obj->name);
+		ret = -ENOSPC;
+		goto out_free_list;
+	}
+
+	list->file_offset_node = drm_mm_get_block(list->file_offset_node,
+			size / PAGE_SIZE, 0);
+	if (!list->file_offset_node) {
+		ret = -ENOMEM;
+		goto out_free_list;
+	}
+
+	list->hash.key = list->file_offset_node->start;
+	ret = drm_ht_insert_item(&mm->offset_hash, &list->hash);
+	if (ret) {
+		DRM_ERROR("failed to add to map hash\n");
+		goto out_free_mm;
+	}
+
+	return 0;
+
+out_free_mm:
+	drm_mm_put_block(list->file_offset_node);
+out_free_list:
+	kfree(list->map);
+	list->map = NULL;
+
+	return ret;
+}
diff --git a/drivers/staging/omapdrm/omap_priv.h b/drivers/staging/omapdrm/omap_priv.h
new file mode 100644
index 000000000000..c324709aa9a1
--- /dev/null
+++ b/drivers/staging/omapdrm/omap_priv.h
@@ -0,0 +1,47 @@
+/*
+ * include/drm/omap_priv.h
+ *
+ * Copyright (C) 2011 Texas Instruments
+ * Author: Rob Clark <rob@ti.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __OMAP_PRIV_H__
+#define __OMAP_PRIV_H__
+
+/* Non-userspace facing APIs
+ */
+
+/* optional platform data to configure the default configuration of which
+ * pipes/overlays/CRTCs are used.. if this is not provided, then instead the
+ * first CONFIG_DRM_OMAP_NUM_CRTCS are used, and they are each connected to
+ * one manager, with priority given to managers that are connected to
+ * detected devices.  This should be a good default behavior for most cases,
+ * but yet there still might be times when you wish to do something different.
+ */
+struct omap_kms_platform_data {
+	int ovl_cnt;
+	const int *ovl_ids;
+	int mgr_cnt;
+	const int *mgr_ids;
+	int dev_cnt;
+	const char **dev_names;
+};
+
+struct omap_drm_platform_data {
+	struct omap_kms_platform_data *kms_pdata;
+	struct omap_dmm_platform_data *dmm_pdata;
+};
+
+#endif /* __OMAP_DRM_H__ */
diff --git a/drivers/staging/omapdrm/tcm-sita.c b/drivers/staging/omapdrm/tcm-sita.c
new file mode 100644
index 000000000000..10d5ac3dae4b
--- /dev/null
+++ b/drivers/staging/omapdrm/tcm-sita.c
@@ -0,0 +1,703 @@
+/*
+ * tcm-sita.c
+ *
+ * SImple Tiler Allocator (SiTA): 2D and 1D allocation(reservation) algorithm
+ *
+ * Authors: Ravi Ramachandra <r.ramachandra@ti.com>,
+ *          Lajos Molnar <molnar@ti.com>
+ *
+ * Copyright (C) 2009-2010 Texas Instruments, Inc.
+ *
+ * This package is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ */
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+
+#include "tcm-sita.h"
+
+#define ALIGN_DOWN(value, align) ((value) & ~((align) - 1))
+
+/* Individual selection criteria for different scan areas */
+static s32 CR_L2R_T2B = CR_BIAS_HORIZONTAL;
+static s32 CR_R2L_T2B = CR_DIAGONAL_BALANCE;
+
+/*********************************************
+ *	TCM API - Sita Implementation
+ *********************************************/
+static s32 sita_reserve_2d(struct tcm *tcm, u16 h, u16 w, u8 align,
+			   struct tcm_area *area);
+static s32 sita_reserve_1d(struct tcm *tcm, u32 slots, struct tcm_area *area);
+static s32 sita_free(struct tcm *tcm, struct tcm_area *area);
+static void sita_deinit(struct tcm *tcm);
+
+/*********************************************
+ *	Main Scanner functions
+ *********************************************/
+static s32 scan_areas_and_find_fit(struct tcm *tcm, u16 w, u16 h, u16 align,
+				   struct tcm_area *area);
+
+static s32 scan_l2r_t2b(struct tcm *tcm, u16 w, u16 h, u16 align,
+			struct tcm_area *field, struct tcm_area *area);
+
+static s32 scan_r2l_t2b(struct tcm *tcm, u16 w, u16 h, u16 align,
+			struct tcm_area *field, struct tcm_area *area);
+
+static s32 scan_r2l_b2t_one_dim(struct tcm *tcm, u32 num_slots,
+			struct tcm_area *field, struct tcm_area *area);
+
+/*********************************************
+ *	Support Infrastructure Methods
+ *********************************************/
+static s32 is_area_free(struct tcm_area ***map, u16 x0, u16 y0, u16 w, u16 h);
+
+static s32 update_candidate(struct tcm *tcm, u16 x0, u16 y0, u16 w, u16 h,
+			    struct tcm_area *field, s32 criteria,
+			    struct score *best);
+
+static void get_nearness_factor(struct tcm_area *field,
+				struct tcm_area *candidate,
+				struct nearness_factor *nf);
+
+static void get_neighbor_stats(struct tcm *tcm, struct tcm_area *area,
+			       struct neighbor_stats *stat);
+
+static void fill_area(struct tcm *tcm,
+				struct tcm_area *area, struct tcm_area *parent);
+
+
+/*********************************************/
+
+/*********************************************
+ *	Utility Methods
+ *********************************************/
+struct tcm *sita_init(u16 width, u16 height, struct tcm_pt *attr)
+{
+	struct tcm *tcm;
+	struct sita_pvt *pvt;
+	struct tcm_area area = {0};
+	s32 i;
+
+	if (width == 0 || height == 0)
+		return NULL;
+
+	tcm = kmalloc(sizeof(*tcm), GFP_KERNEL);
+	pvt = kmalloc(sizeof(*pvt), GFP_KERNEL);
+	if (!tcm || !pvt)
+		goto error;
+
+	memset(tcm, 0, sizeof(*tcm));
+	memset(pvt, 0, sizeof(*pvt));
+
+	/* Updating the pointers to SiTA implementation APIs */
+	tcm->height = height;
+	tcm->width = width;
+	tcm->reserve_2d = sita_reserve_2d;
+	tcm->reserve_1d = sita_reserve_1d;
+	tcm->free = sita_free;
+	tcm->deinit = sita_deinit;
+	tcm->pvt = (void *)pvt;
+
+	spin_lock_init(&(pvt->lock));
+
+	/* Creating tam map */
+	pvt->map = kmalloc(sizeof(*pvt->map) * tcm->width, GFP_KERNEL);
+	if (!pvt->map)
+		goto error;
+
+	for (i = 0; i < tcm->width; i++) {
+		pvt->map[i] =
+			kmalloc(sizeof(**pvt->map) * tcm->height,
+								GFP_KERNEL);
+		if (pvt->map[i] == NULL) {
+			while (i--)
+				kfree(pvt->map[i]);
+			kfree(pvt->map);
+			goto error;
+		}
+	}
+
+	if (attr && attr->x <= tcm->width && attr->y <= tcm->height) {
+		pvt->div_pt.x = attr->x;
+		pvt->div_pt.y = attr->y;
+
+	} else {
+		/* Defaulting to 3:1 ratio on width for 2D area split */
+		/* Defaulting to 3:1 ratio on height for 2D and 1D split */
+		pvt->div_pt.x = (tcm->width * 3) / 4;
+		pvt->div_pt.y = (tcm->height * 3) / 4;
+	}
+
+	spin_lock(&(pvt->lock));
+	assign(&area, 0, 0, width - 1, height - 1);
+	fill_area(tcm, &area, NULL);
+	spin_unlock(&(pvt->lock));
+	return tcm;
+
+error:
+	kfree(tcm);
+	kfree(pvt);
+	return NULL;
+}
+
+static void sita_deinit(struct tcm *tcm)
+{
+	struct sita_pvt *pvt = (struct sita_pvt *)tcm->pvt;
+	struct tcm_area area = {0};
+	s32 i;
+
+	area.p1.x = tcm->width - 1;
+	area.p1.y = tcm->height - 1;
+
+	spin_lock(&(pvt->lock));
+	fill_area(tcm, &area, NULL);
+	spin_unlock(&(pvt->lock));
+
+	for (i = 0; i < tcm->height; i++)
+		kfree(pvt->map[i]);
+	kfree(pvt->map);
+	kfree(pvt);
+}
+
+/**
+ * Reserve a 1D area in the container
+ *
+ * @param num_slots	size of 1D area
+ * @param area		pointer to the area that will be populated with the
+ *			reserved area
+ *
+ * @return 0 on success, non-0 error value on failure.
+ */
+static s32 sita_reserve_1d(struct tcm *tcm, u32 num_slots,
+			   struct tcm_area *area)
+{
+	s32 ret;
+	struct tcm_area field = {0};
+	struct sita_pvt *pvt = (struct sita_pvt *)tcm->pvt;
+
+	spin_lock(&(pvt->lock));
+
+	/* Scanning entire container */
+	assign(&field, tcm->width - 1, tcm->height - 1, 0, 0);
+
+	ret = scan_r2l_b2t_one_dim(tcm, num_slots, &field, area);
+	if (!ret)
+		/* update map */
+		fill_area(tcm, area, area);
+
+	spin_unlock(&(pvt->lock));
+	return ret;
+}
+
+/**
+ * Reserve a 2D area in the container
+ *
+ * @param w	width
+ * @param h	height
+ * @param area	pointer to the area that will be populated with the reesrved
+ *		area
+ *
+ * @return 0 on success, non-0 error value on failure.
+ */
+static s32 sita_reserve_2d(struct tcm *tcm, u16 h, u16 w, u8 align,
+			   struct tcm_area *area)
+{
+	s32 ret;
+	struct sita_pvt *pvt = (struct sita_pvt *)tcm->pvt;
+
+	/* not supporting more than 64 as alignment */
+	if (align > 64)
+		return -EINVAL;
+
+	/* we prefer 1, 32 and 64 as alignment */
+	align = align <= 1 ? 1 : align <= 32 ? 32 : 64;
+
+	spin_lock(&(pvt->lock));
+	ret = scan_areas_and_find_fit(tcm, w, h, align, area);
+	if (!ret)
+		/* update map */
+		fill_area(tcm, area, area);
+
+	spin_unlock(&(pvt->lock));
+	return ret;
+}
+
+/**
+ * Unreserve a previously allocated 2D or 1D area
+ * @param area	area to be freed
+ * @return 0 - success
+ */
+static s32 sita_free(struct tcm *tcm, struct tcm_area *area)
+{
+	struct sita_pvt *pvt = (struct sita_pvt *)tcm->pvt;
+
+	spin_lock(&(pvt->lock));
+
+	/* check that this is in fact an existing area */
+	WARN_ON(pvt->map[area->p0.x][area->p0.y] != area ||
+		pvt->map[area->p1.x][area->p1.y] != area);
+
+	/* Clear the contents of the associated tiles in the map */
+	fill_area(tcm, area, NULL);
+
+	spin_unlock(&(pvt->lock));
+
+	return 0;
+}
+
+/**
+ * Note: In general the cordinates in the scan field area relevant to the can
+ * sweep directions. The scan origin (e.g. top-left corner) will always be
+ * the p0 member of the field.  Therfore, for a scan from top-left p0.x <= p1.x
+ * and p0.y <= p1.y; whereas, for a scan from bottom-right p1.x <= p0.x and p1.y
+ * <= p0.y
+ */
+
+/**
+ * Raster scan horizontally right to left from top to bottom to find a place for
+ * a 2D area of given size inside a scan field.
+ *
+ * @param w	width of desired area
+ * @param h	height of desired area
+ * @param align	desired area alignment
+ * @param area	pointer to the area that will be set to the best position
+ * @param field	area to scan (inclusive)
+ *
+ * @return 0 on success, non-0 error value on failure.
+ */
+static s32 scan_r2l_t2b(struct tcm *tcm, u16 w, u16 h, u16 align,
+			struct tcm_area *field, struct tcm_area *area)
+{
+	s32 x, y;
+	s16 start_x, end_x, start_y, end_y, found_x = -1;
+	struct tcm_area ***map = ((struct sita_pvt *)tcm->pvt)->map;
+	struct score best = {{0}, {0}, {0}, 0};
+
+	start_x = field->p0.x;
+	end_x = field->p1.x;
+	start_y = field->p0.y;
+	end_y = field->p1.y;
+
+	/* check scan area co-ordinates */
+	if (field->p0.x < field->p1.x ||
+	    field->p1.y < field->p0.y)
+		return -EINVAL;
+
+	/* check if allocation would fit in scan area */
+	if (w > LEN(start_x, end_x) || h > LEN(end_y, start_y))
+		return -ENOSPC;
+
+	/* adjust start_x and end_y, as allocation would not fit beyond */
+	start_x = ALIGN_DOWN(start_x - w + 1, align); /* - 1 to be inclusive */
+	end_y = end_y - h + 1;
+
+	/* check if allocation would still fit in scan area */
+	if (start_x < end_x)
+		return -ENOSPC;
+
+	/* scan field top-to-bottom, right-to-left */
+	for (y = start_y; y <= end_y; y++) {
+		for (x = start_x; x >= end_x; x -= align) {
+			if (is_area_free(map, x, y, w, h)) {
+				found_x = x;
+
+				/* update best candidate */
+				if (update_candidate(tcm, x, y, w, h, field,
+							CR_R2L_T2B, &best))
+					goto done;
+
+				/* change upper x bound */
+				end_x = x + 1;
+				break;
+			} else if (map[x][y] && map[x][y]->is2d) {
+				/* step over 2D areas */
+				x = ALIGN(map[x][y]->p0.x - w + 1, align);
+			}
+		}
+
+		/* break if you find a free area shouldering the scan field */
+		if (found_x == start_x)
+			break;
+	}
+
+	if (!best.a.tcm)
+		return -ENOSPC;
+done:
+	assign(area, best.a.p0.x, best.a.p0.y, best.a.p1.x, best.a.p1.y);
+	return 0;
+}
+
+/**
+ * Raster scan horizontally left to right from top to bottom to find a place for
+ * a 2D area of given size inside a scan field.
+ *
+ * @param w	width of desired area
+ * @param h	height of desired area
+ * @param align	desired area alignment
+ * @param area	pointer to the area that will be set to the best position
+ * @param field	area to scan (inclusive)
+ *
+ * @return 0 on success, non-0 error value on failure.
+ */
+static s32 scan_l2r_t2b(struct tcm *tcm, u16 w, u16 h, u16 align,
+			struct tcm_area *field, struct tcm_area *area)
+{
+	s32 x, y;
+	s16 start_x, end_x, start_y, end_y, found_x = -1;
+	struct tcm_area ***map = ((struct sita_pvt *)tcm->pvt)->map;
+	struct score best = {{0}, {0}, {0}, 0};
+
+	start_x = field->p0.x;
+	end_x = field->p1.x;
+	start_y = field->p0.y;
+	end_y = field->p1.y;
+
+	/* check scan area co-ordinates */
+	if (field->p1.x < field->p0.x ||
+	    field->p1.y < field->p0.y)
+		return -EINVAL;
+
+	/* check if allocation would fit in scan area */
+	if (w > LEN(end_x, start_x) || h > LEN(end_y, start_y))
+		return -ENOSPC;
+
+	start_x = ALIGN(start_x, align);
+
+	/* check if allocation would still fit in scan area */
+	if (w > LEN(end_x, start_x))
+		return -ENOSPC;
+
+	/* adjust end_x and end_y, as allocation would not fit beyond */
+	end_x = end_x - w + 1; /* + 1 to be inclusive */
+	end_y = end_y - h + 1;
+
+	/* scan field top-to-bottom, left-to-right */
+	for (y = start_y; y <= end_y; y++) {
+		for (x = start_x; x <= end_x; x += align) {
+			if (is_area_free(map, x, y, w, h)) {
+				found_x = x;
+
+				/* update best candidate */
+				if (update_candidate(tcm, x, y, w, h, field,
+							CR_L2R_T2B, &best))
+					goto done;
+				/* change upper x bound */
+				end_x = x - 1;
+
+				break;
+			} else if (map[x][y] && map[x][y]->is2d) {
+				/* step over 2D areas */
+				x = ALIGN_DOWN(map[x][y]->p1.x, align);
+			}
+		}
+
+		/* break if you find a free area shouldering the scan field */
+		if (found_x == start_x)
+			break;
+	}
+
+	if (!best.a.tcm)
+		return -ENOSPC;
+done:
+	assign(area, best.a.p0.x, best.a.p0.y, best.a.p1.x, best.a.p1.y);
+	return 0;
+}
+
+/**
+ * Raster scan horizontally right to left from bottom to top to find a place
+ * for a 1D area of given size inside a scan field.
+ *
+ * @param num_slots	size of desired area
+ * @param align		desired area alignment
+ * @param area		pointer to the area that will be set to the best
+ *			position
+ * @param field		area to scan (inclusive)
+ *
+ * @return 0 on success, non-0 error value on failure.
+ */
+static s32 scan_r2l_b2t_one_dim(struct tcm *tcm, u32 num_slots,
+				struct tcm_area *field, struct tcm_area *area)
+{
+	s32 found = 0;
+	s16 x, y;
+	struct sita_pvt *pvt = (struct sita_pvt *)tcm->pvt;
+	struct tcm_area *p;
+
+	/* check scan area co-ordinates */
+	if (field->p0.y < field->p1.y)
+		return -EINVAL;
+
+	/**
+	 * Currently we only support full width 1D scan field, which makes sense
+	 * since 1D slot-ordering spans the full container width.
+	 */
+	if (tcm->width != field->p0.x - field->p1.x + 1)
+		return -EINVAL;
+
+	/* check if allocation would fit in scan area */
+	if (num_slots > tcm->width * LEN(field->p0.y, field->p1.y))
+		return -ENOSPC;
+
+	x = field->p0.x;
+	y = field->p0.y;
+
+	/* find num_slots consecutive free slots to the left */
+	while (found < num_slots) {
+		if (y < 0)
+			return -ENOSPC;
+
+		/* remember bottom-right corner */
+		if (found == 0) {
+			area->p1.x = x;
+			area->p1.y = y;
+		}
+
+		/* skip busy regions */
+		p = pvt->map[x][y];
+		if (p) {
+			/* move to left of 2D areas, top left of 1D */
+			x = p->p0.x;
+			if (!p->is2d)
+				y = p->p0.y;
+
+			/* start over */
+			found = 0;
+		} else {
+			/* count consecutive free slots */
+			found++;
+			if (found == num_slots)
+				break;
+		}
+
+		/* move to the left */
+		if (x == 0)
+			y--;
+		x = (x ? : tcm->width) - 1;
+
+	}
+
+	/* set top-left corner */
+	area->p0.x = x;
+	area->p0.y = y;
+	return 0;
+}
+
+/**
+ * Find a place for a 2D area of given size inside a scan field based on its
+ * alignment needs.
+ *
+ * @param w	width of desired area
+ * @param h	height of desired area
+ * @param align	desired area alignment
+ * @param area	pointer to the area that will be set to the best position
+ *
+ * @return 0 on success, non-0 error value on failure.
+ */
+static s32 scan_areas_and_find_fit(struct tcm *tcm, u16 w, u16 h, u16 align,
+				   struct tcm_area *area)
+{
+	s32 ret = 0;
+	struct tcm_area field = {0};
+	u16 boundary_x, boundary_y;
+	struct sita_pvt *pvt = (struct sita_pvt *)tcm->pvt;
+
+	if (align > 1) {
+		/* prefer top-left corner */
+		boundary_x = pvt->div_pt.x - 1;
+		boundary_y = pvt->div_pt.y - 1;
+
+		/* expand width and height if needed */
+		if (w > pvt->div_pt.x)
+			boundary_x = tcm->width - 1;
+		if (h > pvt->div_pt.y)
+			boundary_y = tcm->height - 1;
+
+		assign(&field, 0, 0, boundary_x, boundary_y);
+		ret = scan_l2r_t2b(tcm, w, h, align, &field, area);
+
+		/* scan whole container if failed, but do not scan 2x */
+		if (ret != 0 && (boundary_x != tcm->width - 1 ||
+				 boundary_y != tcm->height - 1)) {
+			/* scan the entire container if nothing found */
+			assign(&field, 0, 0, tcm->width - 1, tcm->height - 1);
+			ret = scan_l2r_t2b(tcm, w, h, align, &field, area);
+		}
+	} else if (align == 1) {
+		/* prefer top-right corner */
+		boundary_x = pvt->div_pt.x;
+		boundary_y = pvt->div_pt.y - 1;
+
+		/* expand width and height if needed */
+		if (w > (tcm->width - pvt->div_pt.x))
+			boundary_x = 0;
+		if (h > pvt->div_pt.y)
+			boundary_y = tcm->height - 1;
+
+		assign(&field, tcm->width - 1, 0, boundary_x, boundary_y);
+		ret = scan_r2l_t2b(tcm, w, h, align, &field, area);
+
+		/* scan whole container if failed, but do not scan 2x */
+		if (ret != 0 && (boundary_x != 0 ||
+				 boundary_y != tcm->height - 1)) {
+			/* scan the entire container if nothing found */
+			assign(&field, tcm->width - 1, 0, 0, tcm->height - 1);
+			ret = scan_r2l_t2b(tcm, w, h, align, &field,
+					   area);
+		}
+	}
+
+	return ret;
+}
+
+/* check if an entire area is free */
+static s32 is_area_free(struct tcm_area ***map, u16 x0, u16 y0, u16 w, u16 h)
+{
+	u16 x = 0, y = 0;
+	for (y = y0; y < y0 + h; y++) {
+		for (x = x0; x < x0 + w; x++) {
+			if (map[x][y])
+				return false;
+		}
+	}
+	return true;
+}
+
+/* fills an area with a parent tcm_area */
+static void fill_area(struct tcm *tcm, struct tcm_area *area,
+			struct tcm_area *parent)
+{
+	s32 x, y;
+	struct sita_pvt *pvt = (struct sita_pvt *)tcm->pvt;
+	struct tcm_area a, a_;
+
+	/* set area's tcm; otherwise, enumerator considers it invalid */
+	area->tcm = tcm;
+
+	tcm_for_each_slice(a, *area, a_) {
+		for (x = a.p0.x; x <= a.p1.x; ++x)
+			for (y = a.p0.y; y <= a.p1.y; ++y)
+				pvt->map[x][y] = parent;
+
+	}
+}
+
+/**
+ * Compares a candidate area to the current best area, and if it is a better
+ * fit, it updates the best to this one.
+ *
+ * @param x0, y0, w, h		top, left, width, height of candidate area
+ * @param field			scan field
+ * @param criteria		scan criteria
+ * @param best			best candidate and its scores
+ *
+ * @return 1 (true) if the candidate area is known to be the final best, so no
+ * more searching should be performed
+ */
+static s32 update_candidate(struct tcm *tcm, u16 x0, u16 y0, u16 w, u16 h,
+			    struct tcm_area *field, s32 criteria,
+			    struct score *best)
+{
+	struct score me;	/* score for area */
+
+	/*
+	 * NOTE: For horizontal bias we always give the first found, because our
+	 * scan is horizontal-raster-based and the first candidate will always
+	 * have the horizontal bias.
+	 */
+	bool first = criteria & CR_BIAS_HORIZONTAL;
+
+	assign(&me.a, x0, y0, x0 + w - 1, y0 + h - 1);
+
+	/* calculate score for current candidate */
+	if (!first) {
+		get_neighbor_stats(tcm, &me.a, &me.n);
+		me.neighs = me.n.edge + me.n.busy;
+		get_nearness_factor(field, &me.a, &me.f);
+	}
+
+	/* the 1st candidate is always the best */
+	if (!best->a.tcm)
+		goto better;
+
+	BUG_ON(first);
+
+	/* diagonal balance check */
+	if ((criteria & CR_DIAGONAL_BALANCE) &&
+		best->neighs <= me.neighs &&
+		(best->neighs < me.neighs ||
+		 /* this implies that neighs and occupied match */
+		 best->n.busy < me.n.busy ||
+		 (best->n.busy == me.n.busy &&
+		  /* check the nearness factor */
+		  best->f.x + best->f.y > me.f.x + me.f.y)))
+		goto better;
+
+	/* not better, keep going */
+	return 0;
+
+better:
+	/* save current area as best */
+	memcpy(best, &me, sizeof(me));
+	best->a.tcm = tcm;
+	return first;
+}
+
+/**
+ * Calculate the nearness factor of an area in a search field.  The nearness
+ * factor is smaller if the area is closer to the search origin.
+ */
+static void get_nearness_factor(struct tcm_area *field, struct tcm_area *area,
+				struct nearness_factor *nf)
+{
+	/**
+	 * Using signed math as field coordinates may be reversed if
+	 * search direction is right-to-left or bottom-to-top.
+	 */
+	nf->x = (s32)(area->p0.x - field->p0.x) * 1000 /
+		(field->p1.x - field->p0.x);
+	nf->y = (s32)(area->p0.y - field->p0.y) * 1000 /
+		(field->p1.y - field->p0.y);
+}
+
+/* get neighbor statistics */
+static void get_neighbor_stats(struct tcm *tcm, struct tcm_area *area,
+			 struct neighbor_stats *stat)
+{
+	s16 x = 0, y = 0;
+	struct sita_pvt *pvt = (struct sita_pvt *)tcm->pvt;
+
+	/* Clearing any exisiting values */
+	memset(stat, 0, sizeof(*stat));
+
+	/* process top & bottom edges */
+	for (x = area->p0.x; x <= area->p1.x; x++) {
+		if (area->p0.y == 0)
+			stat->edge++;
+		else if (pvt->map[x][area->p0.y - 1])
+			stat->busy++;
+
+		if (area->p1.y == tcm->height - 1)
+			stat->edge++;
+		else if (pvt->map[x][area->p1.y + 1])
+			stat->busy++;
+	}
+
+	/* process left & right edges */
+	for (y = area->p0.y; y <= area->p1.y; ++y) {
+		if (area->p0.x == 0)
+			stat->edge++;
+		else if (pvt->map[area->p0.x - 1][y])
+			stat->busy++;
+
+		if (area->p1.x == tcm->width - 1)
+			stat->edge++;
+		else if (pvt->map[area->p1.x + 1][y])
+			stat->busy++;
+	}
+}
diff --git a/drivers/staging/omapdrm/tcm-sita.h b/drivers/staging/omapdrm/tcm-sita.h
new file mode 100644
index 000000000000..0444f868671c
--- /dev/null
+++ b/drivers/staging/omapdrm/tcm-sita.h
@@ -0,0 +1,95 @@
+/*
+ * tcm_sita.h
+ *
+ * SImple Tiler Allocator (SiTA) private structures.
+ *
+ * Author: Ravi Ramachandra <r.ramachandra@ti.com>
+ *
+ * Copyright (C) 2009-2011 Texas Instruments, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Texas Instruments Incorporated nor the names of
+ *   its contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef _TCM_SITA_H
+#define _TCM_SITA_H
+
+#include "tcm.h"
+
+/* length between two coordinates */
+#define LEN(a, b) ((a) > (b) ? (a) - (b) + 1 : (b) - (a) + 1)
+
+enum criteria {
+	CR_MAX_NEIGHS		= 0x01,
+	CR_FIRST_FOUND		= 0x10,
+	CR_BIAS_HORIZONTAL	= 0x20,
+	CR_BIAS_VERTICAL	= 0x40,
+	CR_DIAGONAL_BALANCE	= 0x80
+};
+
+/* nearness to the beginning of the search field from 0 to 1000 */
+struct nearness_factor {
+	s32 x;
+	s32 y;
+};
+
+/*
+ * Statistics on immediately neighboring slots.  Edge is the number of
+ * border segments that are also border segments of the scan field.  Busy
+ * refers to the number of neighbors that are occupied.
+ */
+struct neighbor_stats {
+	u16 edge;
+	u16 busy;
+};
+
+/* structure to keep the score of a potential allocation */
+struct score {
+	struct nearness_factor	f;
+	struct neighbor_stats	n;
+	struct tcm_area		a;
+	u16    neighs;		/* number of busy neighbors */
+};
+
+struct sita_pvt {
+	spinlock_t lock;	/* spinlock to protect access */
+	struct tcm_pt div_pt;	/* divider point splitting container */
+	struct tcm_area ***map;	/* pointers to the parent area for each slot */
+};
+
+/* assign coordinates to area */
+static inline
+void assign(struct tcm_area *a, u16 x0, u16 y0, u16 x1, u16 y1)
+{
+	a->p0.x = x0;
+	a->p0.y = y0;
+	a->p1.x = x1;
+	a->p1.y = y1;
+}
+
+#endif
diff --git a/drivers/staging/omapdrm/tcm.h b/drivers/staging/omapdrm/tcm.h
new file mode 100644
index 000000000000..d273e3ee0b4c
--- /dev/null
+++ b/drivers/staging/omapdrm/tcm.h
@@ -0,0 +1,326 @@
+/*
+ * tcm.h
+ *
+ * TILER container manager specification and support functions for TI
+ * TILER driver.
+ *
+ * Author: Lajos Molnar <molnar@ti.com>
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ *   notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ *   notice, this list of conditions and the following disclaimer in the
+ *   documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Texas Instruments Incorporated nor the names of
+ *   its contributors may be used to endorse or promote products derived
+ *   from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
+ * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef TCM_H
+#define TCM_H
+
+struct tcm;
+
+/* point */
+struct tcm_pt {
+	u16 x;
+	u16 y;
+};
+
+/* 1d or 2d area */
+struct tcm_area {
+	bool is2d;		/* whether area is 1d or 2d */
+	struct tcm    *tcm;	/* parent */
+	struct tcm_pt  p0;
+	struct tcm_pt  p1;
+};
+
+struct tcm {
+	u16 width, height;	/* container dimensions */
+	int lut_id;		/* Lookup table identifier */
+
+	/* 'pvt' structure shall contain any tcm details (attr) along with
+	linked list of allocated areas and mutex for mutually exclusive access
+	to the list.  It may also contain copies of width and height to notice
+	any changes to the publicly available width and height fields. */
+	void *pvt;
+
+	/* function table */
+	s32 (*reserve_2d)(struct tcm *tcm, u16 height, u16 width, u8 align,
+			  struct tcm_area *area);
+	s32 (*reserve_1d)(struct tcm *tcm, u32 slots, struct tcm_area *area);
+	s32 (*free)      (struct tcm *tcm, struct tcm_area *area);
+	void (*deinit)   (struct tcm *tcm);
+};
+
+/*=============================================================================
+    BASIC TILER CONTAINER MANAGER INTERFACE
+=============================================================================*/
+
+/*
+ * NOTE:
+ *
+ * Since some basic parameter checking is done outside the TCM algorithms,
+ * TCM implementation do NOT have to check the following:
+ *
+ *   area pointer is NULL
+ *   width and height fits within container
+ *   number of pages is more than the size of the container
+ *
+ */
+
+struct tcm *sita_init(u16 width, u16 height, struct tcm_pt *attr);
+
+
+/**
+ * Deinitialize tiler container manager.
+ *
+ * @param tcm	Pointer to container manager.
+ *
+ * @return 0 on success, non-0 error value on error.  The call
+ *	   should free as much memory as possible and meaningful
+ *	   even on failure.  Some error codes: -ENODEV: invalid
+ *	   manager.
+ */
+static inline void tcm_deinit(struct tcm *tcm)
+{
+	if (tcm)
+		tcm->deinit(tcm);
+}
+
+/**
+ * Reserves a 2D area in the container.
+ *
+ * @param tcm		Pointer to container manager.
+ * @param height	Height(in pages) of area to be reserved.
+ * @param width		Width(in pages) of area to be reserved.
+ * @param align		Alignment requirement for top-left corner of area. Not
+ *			all values may be supported by the container manager,
+ *			but it must support 0 (1), 32 and 64.
+ *			0 value is equivalent to 1.
+ * @param area		Pointer to where the reserved area should be stored.
+ *
+ * @return 0 on success.  Non-0 error code on failure.  Also,
+ *	   the tcm field of the area will be set to NULL on
+ *	   failure.  Some error codes: -ENODEV: invalid manager,
+ *	   -EINVAL: invalid area, -ENOMEM: not enough space for
+ *	    allocation.
+ */
+static inline s32 tcm_reserve_2d(struct tcm *tcm, u16 width, u16 height,
+				 u16 align, struct tcm_area *area)
+{
+	/* perform rudimentary error checking */
+	s32 res = tcm  == NULL ? -ENODEV :
+		(area == NULL || width == 0 || height == 0 ||
+		 /* align must be a 2 power */
+		 (align & (align - 1))) ? -EINVAL :
+		(height > tcm->height || width > tcm->width) ? -ENOMEM : 0;
+
+	if (!res) {
+		area->is2d = true;
+		res = tcm->reserve_2d(tcm, height, width, align, area);
+		area->tcm = res ? NULL : tcm;
+	}
+
+	return res;
+}
+
+/**
+ * Reserves a 1D area in the container.
+ *
+ * @param tcm		Pointer to container manager.
+ * @param slots		Number of (contiguous) slots to reserve.
+ * @param area		Pointer to where the reserved area should be stored.
+ *
+ * @return 0 on success.  Non-0 error code on failure.  Also,
+ *	   the tcm field of the area will be set to NULL on
+ *	   failure.  Some error codes: -ENODEV: invalid manager,
+ *	   -EINVAL: invalid area, -ENOMEM: not enough space for
+ *	    allocation.
+ */
+static inline s32 tcm_reserve_1d(struct tcm *tcm, u32 slots,
+				 struct tcm_area *area)
+{
+	/* perform rudimentary error checking */
+	s32 res = tcm  == NULL ? -ENODEV :
+		(area == NULL || slots == 0) ? -EINVAL :
+		slots > (tcm->width * (u32) tcm->height) ? -ENOMEM : 0;
+
+	if (!res) {
+		area->is2d = false;
+		res = tcm->reserve_1d(tcm, slots, area);
+		area->tcm = res ? NULL : tcm;
+	}
+
+	return res;
+}
+
+/**
+ * Free a previously reserved area from the container.
+ *
+ * @param area	Pointer to area reserved by a prior call to
+ *		tcm_reserve_1d or tcm_reserve_2d call, whether
+ *		it was successful or not. (Note: all fields of
+ *		the structure must match.)
+ *
+ * @return 0 on success.  Non-0 error code on failure.  Also, the tcm
+ *	   field of the area is set to NULL on success to avoid subsequent
+ *	   freeing.  This call will succeed even if supplying
+ *	   the area from a failed reserved call.
+ */
+static inline s32 tcm_free(struct tcm_area *area)
+{
+	s32 res = 0; /* free succeeds by default */
+
+	if (area && area->tcm) {
+		res = area->tcm->free(area->tcm, area);
+		if (res == 0)
+			area->tcm = NULL;
+	}
+
+	return res;
+}
+
+/*=============================================================================
+    HELPER FUNCTION FOR ANY TILER CONTAINER MANAGER
+=============================================================================*/
+
+/**
+ * This method slices off the topmost 2D slice from the parent area, and stores
+ * it in the 'slice' parameter.  The 'parent' parameter will get modified to
+ * contain the remaining portion of the area.  If the whole parent area can
+ * fit in a 2D slice, its tcm pointer is set to NULL to mark that it is no
+ * longer a valid area.
+ *
+ * @param parent	Pointer to a VALID parent area that will get modified
+ * @param slice		Pointer to the slice area that will get modified
+ */
+static inline void tcm_slice(struct tcm_area *parent, struct tcm_area *slice)
+{
+	*slice = *parent;
+
+	/* check if we need to slice */
+	if (slice->tcm && !slice->is2d &&
+		slice->p0.y != slice->p1.y &&
+		(slice->p0.x || (slice->p1.x != slice->tcm->width - 1))) {
+		/* set end point of slice (start always remains) */
+		slice->p1.x = slice->tcm->width - 1;
+		slice->p1.y = (slice->p0.x) ? slice->p0.y : slice->p1.y - 1;
+		/* adjust remaining area */
+		parent->p0.x = 0;
+		parent->p0.y = slice->p1.y + 1;
+	} else {
+		/* mark this as the last slice */
+		parent->tcm = NULL;
+	}
+}
+
+/* Verify if a tcm area is logically valid */
+static inline bool tcm_area_is_valid(struct tcm_area *area)
+{
+	return area && area->tcm &&
+		/* coordinate bounds */
+		area->p1.x < area->tcm->width &&
+		area->p1.y < area->tcm->height &&
+		area->p0.y <= area->p1.y &&
+		/* 1D coordinate relationship + p0.x check */
+		((!area->is2d &&
+		  area->p0.x < area->tcm->width &&
+		  area->p0.x + area->p0.y * area->tcm->width <=
+		  area->p1.x + area->p1.y * area->tcm->width) ||
+		 /* 2D coordinate relationship */
+		 (area->is2d &&
+		  area->p0.x <= area->p1.x));
+}
+
+/* see if a coordinate is within an area */
+static inline bool __tcm_is_in(struct tcm_pt *p, struct tcm_area *a)
+{
+	u16 i;
+
+	if (a->is2d) {
+		return p->x >= a->p0.x && p->x <= a->p1.x &&
+		       p->y >= a->p0.y && p->y <= a->p1.y;
+	} else {
+		i = p->x + p->y * a->tcm->width;
+		return i >= a->p0.x + a->p0.y * a->tcm->width &&
+		       i <= a->p1.x + a->p1.y * a->tcm->width;
+	}
+}
+
+/* calculate area width */
+static inline u16 __tcm_area_width(struct tcm_area *area)
+{
+	return area->p1.x - area->p0.x + 1;
+}
+
+/* calculate area height */
+static inline u16 __tcm_area_height(struct tcm_area *area)
+{
+	return area->p1.y - area->p0.y + 1;
+}
+
+/* calculate number of slots in an area */
+static inline u16 __tcm_sizeof(struct tcm_area *area)
+{
+	return area->is2d ?
+		__tcm_area_width(area) * __tcm_area_height(area) :
+		(area->p1.x - area->p0.x + 1) + (area->p1.y - area->p0.y) *
+							area->tcm->width;
+}
+#define tcm_sizeof(area) __tcm_sizeof(&(area))
+#define tcm_awidth(area) __tcm_area_width(&(area))
+#define tcm_aheight(area) __tcm_area_height(&(area))
+#define tcm_is_in(pt, area) __tcm_is_in(&(pt), &(area))
+
+/* limit a 1D area to the first N pages */
+static inline s32 tcm_1d_limit(struct tcm_area *a, u32 num_pg)
+{
+	if (__tcm_sizeof(a) < num_pg)
+		return -ENOMEM;
+	if (!num_pg)
+		return -EINVAL;
+
+	a->p1.x = (a->p0.x + num_pg - 1) % a->tcm->width;
+	a->p1.y = a->p0.y + ((a->p0.x + num_pg - 1) / a->tcm->width);
+	return 0;
+}
+
+/**
+ * Iterate through 2D slices of a valid area. Behaves
+ * syntactically as a for(;;) statement.
+ *
+ * @param var		Name of a local variable of type 'struct
+ *			tcm_area *' that will get modified to
+ *			contain each slice.
+ * @param area		Pointer to the VALID parent area. This
+ *			structure will not get modified
+ *			throughout the loop.
+ *
+ */
+#define tcm_for_each_slice(var, area, safe) \
+	for (safe = area, \
+	     tcm_slice(&safe, &var); \
+	     var.tcm; tcm_slice(&safe, &var))
+
+#endif
diff --git a/drivers/staging/phison/phison.c b/drivers/staging/phison/phison.c
index 683657cb21f5..d77b21f1eb2d 100644
--- a/drivers/staging/phison/phison.c
+++ b/drivers/staging/phison/phison.c
@@ -70,7 +70,7 @@ static int phison_init_one(struct pci_dev *pdev, const struct pci_device_id *id)
 }
 
 static DEFINE_PCI_DEVICE_TABLE(phison_pci_tbl) = {
-	{ PCI_VENDOR_ID_PHISON, PCI_DEVICE_ID_PS5000, PCI_ANY_ID, PCI_ANY_ID,
+	{ PCI_DEVICE(PCI_VENDOR_ID_PHISON, PCI_DEVICE_ID_PS5000),
 	  PCI_CLASS_STORAGE_IDE << 8, 0xffff00, 0 },
 	{ 0, },
 };
diff --git a/drivers/staging/rtl8192e/Kconfig b/drivers/staging/rtl8192e/Kconfig
index 750c347bfbe1..f87e21101857 100644
--- a/drivers/staging/rtl8192e/Kconfig
+++ b/drivers/staging/rtl8192e/Kconfig
@@ -1,9 +1,43 @@
-config RTL8192E
-	tristate "RealTek RTL8192E Wireless LAN NIC driver"
-	depends on PCI && WLAN
-	depends on m
-	select WIRELESS_EXT
-	select WEXT_PRIV
-	select CRYPTO
-	default N
+config RTLLIB
+	tristate "Support for rtllib wireless devices"
+	depends on WLAN && m
+	default n
+	select LIB80211
 	---help---
+	  If you have a wireless card that uses rtllib, say
+	  Y. Currently the only card is the rtl8192e.
+
+	  If unsure, say N.
+
+if RTLLIB
+
+config RTLLIB_CRYPTO_CCMP
+	tristate "Support for rtllib CCMP crypto"
+	depends on RTLLIB
+	default y
+	---help---
+	  CCMP crypto driver for rtllib.
+
+	  If you enabled RTLLIB, you want this.
+
+config RTLLIB_CRYPTO_TKIP
+	tristate "Support for rtllib TKIP crypto"
+	depends on RTLLIB
+	default y
+	---help---
+	  TKIP crypto driver for rtllib.
+
+	  If you enabled RTLLIB, you want this.
+
+config RTLLIB_CRYPTO_WEP
+	tristate "Support for rtllib WEP crypto"
+	depends on RTLLIB
+	default y
+	---help---
+	  TKIP crypto driver for rtllib.
+
+	  If you enabled RTLLIB, you want this.
+
+source "drivers/staging/rtl8192e/rtl8192e/Kconfig"
+
+endif
diff --git a/drivers/staging/rtl8192e/Makefile b/drivers/staging/rtl8192e/Makefile
index a66a9ad33686..cb18db74d78c 100644
--- a/drivers/staging/rtl8192e/Makefile
+++ b/drivers/staging/rtl8192e/Makefile
@@ -1,41 +1,21 @@
-ccflags-y += -DUSE_FW_SOURCE_IMG_FILE
-ccflags-y += -DCONFIG_PM_RTL
-ccflags-y += -DCONFIG_PM
-ccflags-y += -DHAVE_NET_DEVICE_OPS
-ccflags-y += -DENABLE_DOT11D
-
-r8192e_pci-objs :=		\
-	rtl_core.o		\
-	rtl_eeprom.o		\
-	rtl_ps.o		\
-	rtl_wx.o		\
-	rtl_cam.o		\
-	rtl_dm.o		\
-	rtl_pm.o		\
-	rtl_pci.o		\
-	rtl_debug.o		\
-	rtl_ethtool.o		\
-	r8192E_dev.o		\
-	r8192E_phy.o		\
-	r8192E_firmware.o	\
-	r8192E_cmdpkt.o		\
-	r8192E_hwimg.o		\
-	r8190P_rtl8256.o	\
+rtllib-objs :=			\
+	dot11d.o		\
+	rtllib_module.o		\
 	rtllib_rx.o		\
-	rtllib_softmac.o	\
 	rtllib_tx.o		\
 	rtllib_wx.o		\
-	rtllib_module.o		\
+	rtllib_softmac.o	\
 	rtllib_softmac_wx.o	\
-	rtl819x_HTProc.o	\
-	rtl819x_TSProc.o	\
 	rtl819x_BAProc.o	\
-	dot11d.o		\
-	rtllib_crypt.o		\
-	rtllib_crypt_tkip.o	\
-	rtllib_crypt_ccmp.o	\
-	rtllib_crypt_wep.o
+	rtl819x_HTProc.o	\
+	rtl819x_TSProc.o
+
+obj-$(CONFIG_RTLLIB) += rtllib.o
+
+obj-$(CONFIG_RTLLIB_CRYPTO_CCMP) += rtllib_crypt_ccmp.o
+obj-$(CONFIG_RTLLIB_CRYPTO_TKIP) += rtllib_crypt_tkip.o
+obj-$(CONFIG_RTLLIB_CRYPTO_WEP) += rtllib_crypt_wep.o
 
-obj-$(CONFIG_RTL8192E) += r8192e_pci.o
+obj-$(CONFIG_RTL8192E) += rtl8192e/
 
 ccflags-y += -D__CHECK_ENDIAN__
diff --git a/drivers/staging/rtl8192e/dot11d.c b/drivers/staging/rtl8192e/dot11d.c
index ee0381e0a81f..f7b14f8b7b83 100644
--- a/drivers/staging/rtl8192e/dot11d.c
+++ b/drivers/staging/rtl8192e/dot11d.c
@@ -46,7 +46,7 @@ static struct channel_list ChannelPlan[] = {
 	  56, 60, 64}, 21}
 };
 
-void Dot11d_Init(struct rtllib_device *ieee)
+void dot11d_init(struct rtllib_device *ieee)
 {
 	struct rt_dot11d_info *pDot11dInfo = GET_DOT11D_INFO(ieee);
 	pDot11dInfo->bEnabled = false;
@@ -58,6 +58,7 @@ void Dot11d_Init(struct rtllib_device *ieee)
 	RESET_CIE_WATCHDOG(ieee);
 
 }
+EXPORT_SYMBOL(dot11d_init);
 
 void Dot11d_Channelmap(u8 channel_plan, struct rtllib_device *ieee)
 {
@@ -99,6 +100,7 @@ void Dot11d_Channelmap(u8 channel_plan, struct rtllib_device *ieee)
 		break;
 	}
 }
+EXPORT_SYMBOL(Dot11d_Channelmap);
 
 
 void Dot11d_Reset(struct rtllib_device *ieee)
diff --git a/drivers/staging/rtl8192e/dot11d.h b/drivers/staging/rtl8192e/dot11d.h
index 032f7004a7f0..71f4549a378f 100644
--- a/drivers/staging/rtl8192e/dot11d.h
+++ b/drivers/staging/rtl8192e/dot11d.h
@@ -93,7 +93,7 @@ static inline void cpMacAddr(unsigned char *des, unsigned char *src)
 #define IS_DOT11D_STATE_DONE(__pIeeeDev)			\
 	(GET_DOT11D_INFO(__pIeeeDev)->State == DOT11D_STATE_DONE)
 
-void Dot11d_Init(struct rtllib_device *dev);
+void dot11d_init(struct rtllib_device *dev);
 void Dot11d_Channelmap(u8 channel_plan, struct rtllib_device *ieee);
 void Dot11d_Reset(struct rtllib_device *dev);
 void Dot11d_UpdateCountryIe(struct rtllib_device *dev, u8 *pTaddr,
diff --git a/drivers/staging/rtl8192e/rtl8192e/Kconfig b/drivers/staging/rtl8192e/rtl8192e/Kconfig
new file mode 100644
index 000000000000..50e0d91a409a
--- /dev/null
+++ b/drivers/staging/rtl8192e/rtl8192e/Kconfig
@@ -0,0 +1,9 @@
+config RTL8192E
+	tristate "RealTek RTL8192E Wireless LAN NIC driver"
+	depends on PCI && WLAN && RTLLIB
+	depends on m
+	select WIRELESS_EXT
+	select WEXT_PRIV
+	select CRYPTO
+	default N
+	---help---
diff --git a/drivers/staging/rtl8192e/rtl8192e/Makefile b/drivers/staging/rtl8192e/rtl8192e/Makefile
new file mode 100644
index 000000000000..313a92ec6833
--- /dev/null
+++ b/drivers/staging/rtl8192e/rtl8192e/Makefile
@@ -0,0 +1,21 @@
+r8192e_pci-objs :=		\
+	r8192E_dev.o		\
+	r8192E_phy.o		\
+	r8192E_firmware.o	\
+	r8192E_cmdpkt.o		\
+	r8192E_hwimg.o		\
+	r8190P_rtl8256.o	\
+	rtl_cam.o		\
+	rtl_core.o		\
+	rtl_debug.o		\
+	rtl_dm.o		\
+	rtl_eeprom.o		\
+	rtl_ethtool.o		\
+	rtl_pci.o		\
+	rtl_pm.o		\
+	rtl_ps.o		\
+	rtl_wx.o		\
+
+obj-$(CONFIG_RTL8192E) += r8192e_pci.o
+
+ccflags-y += -D__CHECK_ENDIAN__
diff --git a/drivers/staging/rtl8192e/r8190P_def.h b/drivers/staging/rtl8192e/rtl8192e/r8190P_def.h
index b7bb71fa9ecd..b7bb71fa9ecd 100644
--- a/drivers/staging/rtl8192e/r8190P_def.h
+++ b/drivers/staging/rtl8192e/rtl8192e/r8190P_def.h
diff --git a/drivers/staging/rtl8192e/r8190P_rtl8256.c b/drivers/staging/rtl8192e/rtl8192e/r8190P_rtl8256.c
index 0da56c80f088..0da56c80f088 100644
--- a/drivers/staging/rtl8192e/r8190P_rtl8256.c
+++ b/drivers/staging/rtl8192e/rtl8192e/r8190P_rtl8256.c
diff --git a/drivers/staging/rtl8192e/r8190P_rtl8256.h b/drivers/staging/rtl8192e/rtl8192e/r8190P_rtl8256.h
index 64e831d2f4e5..64e831d2f4e5 100644
--- a/drivers/staging/rtl8192e/r8190P_rtl8256.h
+++ b/drivers/staging/rtl8192e/rtl8192e/r8190P_rtl8256.h
diff --git a/drivers/staging/rtl8192e/r8192E_cmdpkt.c b/drivers/staging/rtl8192e/rtl8192e/r8192E_cmdpkt.c
index 58d044ea5524..58d044ea5524 100644
--- a/drivers/staging/rtl8192e/r8192E_cmdpkt.c
+++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_cmdpkt.c
diff --git a/drivers/staging/rtl8192e/r8192E_cmdpkt.h b/drivers/staging/rtl8192e/rtl8192e/r8192E_cmdpkt.h
index 23219e17e5a1..23219e17e5a1 100644
--- a/drivers/staging/rtl8192e/r8192E_cmdpkt.h
+++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_cmdpkt.h
diff --git a/drivers/staging/rtl8192e/r8192E_dev.c b/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c
index 808aab6fa5ef..808aab6fa5ef 100644
--- a/drivers/staging/rtl8192e/r8192E_dev.c
+++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.c
diff --git a/drivers/staging/rtl8192e/r8192E_dev.h b/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.h
index b9b3b52f9120..b9b3b52f9120 100644
--- a/drivers/staging/rtl8192e/r8192E_dev.h
+++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_dev.h
diff --git a/drivers/staging/rtl8192e/r8192E_firmware.c b/drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c
index 37719859bdae..37719859bdae 100644
--- a/drivers/staging/rtl8192e/r8192E_firmware.c
+++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.c
diff --git a/drivers/staging/rtl8192e/r8192E_firmware.h b/drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.h
index caa878833106..caa878833106 100644
--- a/drivers/staging/rtl8192e/r8192E_firmware.h
+++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_firmware.h
diff --git a/drivers/staging/rtl8192e/r8192E_hw.h b/drivers/staging/rtl8192e/rtl8192e/r8192E_hw.h
index 43c3fb859d10..43c3fb859d10 100644
--- a/drivers/staging/rtl8192e/r8192E_hw.h
+++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_hw.h
diff --git a/drivers/staging/rtl8192e/r8192E_hwimg.c b/drivers/staging/rtl8192e/rtl8192e/r8192E_hwimg.c
index 08e7dbb6694b..08e7dbb6694b 100644
--- a/drivers/staging/rtl8192e/r8192E_hwimg.c
+++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_hwimg.c
diff --git a/drivers/staging/rtl8192e/r8192E_hwimg.h b/drivers/staging/rtl8192e/rtl8192e/r8192E_hwimg.h
index 019836bb36c2..019836bb36c2 100644
--- a/drivers/staging/rtl8192e/r8192E_hwimg.h
+++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_hwimg.h
diff --git a/drivers/staging/rtl8192e/r8192E_phy.c b/drivers/staging/rtl8192e/rtl8192e/r8192E_phy.c
index 7fe69a3348d7..3e705efaaf22 100644
--- a/drivers/staging/rtl8192e/r8192E_phy.c
+++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_phy.c
@@ -23,7 +23,6 @@
 #include "r8190P_rtl8256.h"
 #include "r8192E_phy.h"
 #include "rtl_dm.h"
-#include "dot11d.h"
 
 #include "r8192E_hwimg.h"
 
@@ -859,7 +858,7 @@ static u8 rtl8192_phy_SwChnlStepByStep(struct net_device *dev, u8 channel,
 	RT_TRACE(COMP_TRACE, "====>%s()====stage:%d, step:%d, channel:%d\n",
 		  __func__, *stage, *step, channel);
 
-	if (!IsLegalChannel(priv->rtllib, channel)) {
+	if (!rtllib_legal_channel(priv->rtllib, channel)) {
 		RT_TRACE(COMP_ERR, "=============>set to illegal channel:%d\n",
 			 channel);
 		return true;
diff --git a/drivers/staging/rtl8192e/r8192E_phy.h b/drivers/staging/rtl8192e/rtl8192e/r8192E_phy.h
index 7318f8857af2..7318f8857af2 100644
--- a/drivers/staging/rtl8192e/r8192E_phy.h
+++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_phy.h
diff --git a/drivers/staging/rtl8192e/r8192E_phyreg.h b/drivers/staging/rtl8192e/rtl8192e/r8192E_phyreg.h
index 7899dd538dcd..7899dd538dcd 100644
--- a/drivers/staging/rtl8192e/r8192E_phyreg.h
+++ b/drivers/staging/rtl8192e/rtl8192e/r8192E_phyreg.h
diff --git a/drivers/staging/rtl8192e/r819xE_phyreg.h b/drivers/staging/rtl8192e/rtl8192e/r819xE_phyreg.h
index d5de279f6644..d5de279f6644 100644
--- a/drivers/staging/rtl8192e/r819xE_phyreg.h
+++ b/drivers/staging/rtl8192e/rtl8192e/r819xE_phyreg.h
diff --git a/drivers/staging/rtl8192e/rtl_cam.c b/drivers/staging/rtl8192e/rtl8192e/rtl_cam.c
index baf3b6342e44..baf3b6342e44 100644
--- a/drivers/staging/rtl8192e/rtl_cam.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_cam.c
diff --git a/drivers/staging/rtl8192e/rtl_cam.h b/drivers/staging/rtl8192e/rtl8192e/rtl_cam.h
index fa607f98b172..fa607f98b172 100644
--- a/drivers/staging/rtl8192e/rtl_cam.h
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_cam.h
diff --git a/drivers/staging/rtl8192e/rtl_core.c b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
index 5ad96649f407..71adb6b3344d 100644
--- a/drivers/staging/rtl8192e/rtl_core.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_core.c
@@ -53,9 +53,7 @@
 #include "rtl_wx.h"
 #include "rtl_dm.h"
 
-#ifdef CONFIG_PM_RTL
 #include "rtl_pm.h"
-#endif
 
 int hwwep = 1;
 static int channels = 0x3fff;
@@ -581,7 +579,7 @@ static void rtl8192_update_beacon(void *data)
 	struct rtllib_network *net = &ieee->current_network;
 
 	if (ieee->pHTInfo->bCurrentHTSupport)
-		HTUpdateSelfAndPeerSetting(ieee, net);
+		HT_update_self_and_peer_setting(ieee, net);
 	ieee->pHTInfo->bCurrentRT2RTLongSlotTime =
 		 net->bssht.bdRT2RTLongSlotTime;
 	ieee->pHTInfo->RT2RT_HT_Mode = net->bssht.RT2RT_HT_Mode;
@@ -1289,7 +1287,7 @@ static short rtl8192_get_channel_map(struct net_device *dev)
 		priv->ChannelPlan = COUNTRY_CODE_FCC;
 	}
 	RT_TRACE(COMP_INIT, "Channel plan is %d\n", priv->ChannelPlan);
-	Dot11d_Init(priv->rtllib);
+	dot11d_init(priv->rtllib);
 	Dot11d_Channelmap(priv->ChannelPlan, priv->rtllib);
 	for (i = 1; i <= 11; i++)
 		(priv->rtllib->active_channel_map)[i] = 1;
@@ -1305,7 +1303,6 @@ static short rtl8192_init(struct net_device *dev)
 
 	memset(&(priv->stats), 0, sizeof(struct rt_stats));
 
-	rtl8192_dbgp_flag_init(dev);
 	rtl8192_init_priv_handler(dev);
 	rtl8192_init_priv_constant(dev);
 	rtl8192_init_priv_variable(dev);
@@ -2839,7 +2836,6 @@ done:
 /****************************************************************************
 	---------------------------- PCI_STUFF---------------------------
 *****************************************************************************/
-#ifdef HAVE_NET_DEVICE_OPS
 static const struct net_device_ops rtl8192_netdev_ops = {
 	.ndo_open = rtl8192_open,
 	.ndo_stop = rtl8192_close,
@@ -2851,7 +2847,6 @@ static const struct net_device_ops rtl8192_netdev_ops = {
 	.ndo_change_mtu = eth_change_mtu,
 	.ndo_start_xmit = rtllib_xmit,
 };
-#endif
 
 static int __devinit rtl8192_pci_probe(struct pci_dev *pdev,
 			const struct pci_device_id *id)
@@ -2938,17 +2933,7 @@ static int __devinit rtl8192_pci_probe(struct pci_dev *pdev,
 	dev->irq = pdev->irq;
 	priv->irq = 0;
 
-#ifdef HAVE_NET_DEVICE_OPS
 	dev->netdev_ops = &rtl8192_netdev_ops;
-#else
-	dev->open = rtl8192_open;
-	dev->stop = rtl8192_close;
-	dev->tx_timeout = rtl8192_tx_timeout;
-	dev->do_ioctl = rtl8192_ioctl;
-	dev->set_multicast_list = r8192_set_multicast;
-	dev->set_mac_address = r8192_set_mac_adr;
-	dev->hard_start_xmit = rtllib_xmit;
-#endif
 
 	dev->wireless_handlers = (struct iw_handler_def *)
 				 &r8192_wx_handlers_def;
@@ -2974,10 +2959,7 @@ static int __devinit rtl8192_pci_probe(struct pci_dev *pdev,
 
 	register_netdev(dev);
 	RT_TRACE(COMP_INIT, "dev name: %s\n", dev->name);
-	err = rtl_debug_module_init(priv, dev->name);
-	if (err)
-		RT_TRACE(COMP_DBG, "failed to create debugfs files. Ignoring "
-			 "error: %d\n", err);
+
 	rtl8192_proc_init_one(dev);
 
 	if (priv->polling_timer_on == 0)
@@ -3015,7 +2997,6 @@ static void __devexit rtl8192_pci_disconnect(struct pci_dev *pdev)
 		del_timer_sync(&priv->gpio_polling_timer);
 		cancel_delayed_work(&priv->gpio_change_rf_wq);
 		priv->polling_timer_on = 0;
-		rtl_debug_module_remove(priv);
 		rtl8192_proc_remove_one(dev);
 		rtl8192_down(dev, true);
 		deinit_hal_dm(dev);
@@ -3103,43 +3084,9 @@ bool NicIFDisableNIC(struct net_device *dev)
 
 static int __init rtl8192_pci_module_init(void)
 {
-	int ret;
-	int error;
-
-	ret = rtllib_init();
-	if (ret) {
-		printk(KERN_ERR "rtllib_init() failed %d\n", ret);
-		return ret;
-	}
-	ret = rtllib_crypto_init();
-	if (ret) {
-		printk(KERN_ERR "rtllib_crypto_init() failed %d\n", ret);
-		return ret;
-	}
-	ret = rtllib_crypto_tkip_init();
-	if (ret) {
-		printk(KERN_ERR "rtllib_crypto_tkip_init() failed %d\n", ret);
-		return ret;
-	}
-	ret = rtllib_crypto_ccmp_init();
-	if (ret) {
-		printk(KERN_ERR "rtllib_crypto_ccmp_init() failed %d\n", ret);
-		return ret;
-	}
-	ret = rtllib_crypto_wep_init();
-	if (ret) {
-		printk(KERN_ERR "rtllib_crypto_wep_init() failed %d\n", ret);
-		return ret;
-	}
 	printk(KERN_INFO "\nLinux kernel driver for RTL8192E WLAN cards\n");
 	printk(KERN_INFO "Copyright (c) 2007-2008, Realsil Wlan Driver\n");
 
-	error = rtl_create_debugfs_root();
-	if (error) {
-		RT_TRACE(COMP_DBG, "Create debugfs root fail: %d\n", error);
-		goto err_out;
-	}
-
 	rtl8192_proc_module_init();
 	if (0 != pci_register_driver(&rtl8192_pci_driver)) {
 		DMESG("No device found");
@@ -3147,9 +3094,6 @@ static int __init rtl8192_pci_module_init(void)
 		return -ENODEV;
 	}
 	return 0;
-err_out:
-	return error;
-
 }
 
 static void __exit rtl8192_pci_module_exit(void)
@@ -3158,12 +3102,6 @@ static void __exit rtl8192_pci_module_exit(void)
 
 	RT_TRACE(COMP_DOWN, "Exiting");
 	rtl8192_proc_module_remove();
-	rtl_remove_debugfs_root();
-	rtllib_crypto_tkip_exit();
-	rtllib_crypto_ccmp_exit();
-	rtllib_crypto_wep_exit();
-	rtllib_crypto_deinit();
-	rtllib_exit();
 }
 
 void check_rfctrl_gpio_timer(unsigned long data)
diff --git a/drivers/staging/rtl8192e/rtl_core.h b/drivers/staging/rtl8192e/rtl8192e/rtl_core.h
index f9af5153d9cf..2a2519cc284d 100644
--- a/drivers/staging/rtl8192e/rtl_core.h
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_core.h
@@ -44,11 +44,14 @@
 #include <linux/proc_fs.h>
 #include <linux/if_arp.h>
 #include <linux/random.h>
-#include <linux/version.h>
 #include <linux/io.h>
-#include "rtllib.h"
 
-#include "dot11d.h"
+/* Need this defined before including local include files */
+#define DRV_NAME "rtl819xE"
+
+#include "../rtllib.h"
+
+#include "../dot11d.h"
 
 #include "r8192E_firmware.h"
 #include "r8192E_hw.h"
@@ -56,7 +59,6 @@
 #include "r8190P_def.h"
 #include "r8192E_dev.h"
 
-#include "rtl_debug.h"
 #include "rtl_eeprom.h"
 #include "rtl_ps.h"
 #include "rtl_pci.h"
@@ -67,8 +69,6 @@
 #define DRV_AUTHOR  "<wlanfae@realtek.com>"
 #define DRV_VERSION  "0014.0401.2010"
 
-#define DRV_NAME "rtl819xE"
-
 #define IS_HARDWARE_TYPE_819xP(_priv)		\
 	((((struct r8192_priv *)rtllib_priv(dev))->card_8192 == NIC_8190P) || \
 	(((struct r8192_priv *)rtllib_priv(dev))->card_8192 == NIC_8192E))
@@ -215,41 +215,6 @@ enum RTL819x_PHY_PARAM {
 	RTL819X_EFUSE_MAP			= 19,
 };
 
-enum RTL_DEBUG {
-	COMP_TRACE		= BIT0,
-	COMP_DBG		= BIT1,
-	COMP_INIT		= BIT2,
-	COMP_RECV		= BIT3,
-	COMP_SEND		= BIT4,
-	COMP_CMD		= BIT5,
-	COMP_POWER		= BIT6,
-	COMP_EPROM		= BIT7,
-	COMP_SWBW		= BIT8,
-	COMP_SEC		= BIT9,
-	COMP_LPS		= BIT10,
-	COMP_QOS		= BIT11,
-	COMP_RATE		= BIT12,
-	COMP_RXDESC		= BIT13,
-	COMP_PHY		= BIT14,
-	COMP_DIG		= BIT15,
-	COMP_TXAGC		= BIT16,
-	COMP_HALDM		= BIT17,
-	COMP_POWER_TRACKING	= BIT18,
-	COMP_CH			= BIT19,
-	COMP_RF			= BIT20,
-	COMP_FIRMWARE		= BIT21,
-	COMP_HT			= BIT22,
-	COMP_RESET		= BIT23,
-	COMP_CMDPKT		= BIT24,
-	COMP_SCAN		= BIT25,
-	COMP_PS			= BIT26,
-	COMP_DOWN		= BIT27,
-	COMP_INTR		= BIT28,
-	COMP_LED		= BIT29,
-	COMP_MLME		= BIT30,
-	COMP_ERR		= BIT31
-};
-
 enum nic_t {
 	NIC_UNKNOWN     = 0,
 	NIC_8192E       = 1,
@@ -1121,4 +1086,10 @@ void ActUpdateChannelAccessSetting(struct net_device *dev,
 			   enum wireless_mode WirelessMode,
 			   struct channel_access_setting *ChnlAccessSetting);
 
+/* proc stuff from rtl_debug.c */
+void rtl8192_proc_init_one(struct net_device *dev);
+void rtl8192_proc_remove_one(struct net_device *dev);
+void rtl8192_proc_module_init(void);
+void rtl8192_proc_module_remove(void);
+
 #endif
diff --git a/drivers/staging/rtl8192e/rtl_crypto.h b/drivers/staging/rtl8192e/rtl8192e/rtl_crypto.h
index ee57c0f4fa69..ee57c0f4fa69 100644
--- a/drivers/staging/rtl8192e/rtl_crypto.h
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_crypto.h
diff --git a/drivers/staging/rtl8192e/rtl_debug.c b/drivers/staging/rtl8192e/rtl8192e/rtl_debug.c
index 22bc2dd6e438..c19b14cd6f77 100644
--- a/drivers/staging/rtl8192e/rtl_debug.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_debug.c
@@ -22,91 +22,12 @@
  * Contact Information:
  * wlanfae <wlanfae@realtek.com>
 ******************************************************************************/
-#include "rtl_debug.h"
 #include "rtl_core.h"
 #include "r8192E_phy.h"
 #include "r8192E_phyreg.h"
 #include "r8190P_rtl8256.h" /* RTL8225 Radio frontend */
 #include "r8192E_cmdpkt.h"
 
-u32 rt_global_debug_component = \
-				COMP_ERR ;
-
-/*------------------Declare variable-----------------------*/
-u32	DBGP_Type[DBGP_TYPE_MAX];
-
-/*-----------------------------------------------------------------------------
- * Function:    DBGP_Flag_Init
- *
- * Overview:    Refresh all debug print control flag content to zero.
- *
- * Input:       NONE
- *
- * Output:      NONE
- *
- * Return:      NONE
- *
- * Revised History:
- *  When		Who		Remark
- *  10/20/2006	MHC		Create Version 0.
- *
- *---------------------------------------------------------------------------*/
-void	rtl8192_dbgp_flag_init(struct net_device *dev)
-{
-	u8 i;
-
-	for (i = 0; i < DBGP_TYPE_MAX; i++)
-		DBGP_Type[i] = 0;
-
-
-}	/* DBGP_Flag_Init */
-
-/* this is only for debugging */
-void print_buffer(u32 *buffer, int len)
-{
-	int i;
-	u8 *buf = (u8 *)buffer;
-
-	printk(KERN_INFO "ASCII BUFFER DUMP (len: %x):\n", len);
-
-	for (i = 0; i < len; i++)
-		printk(KERN_INFO "%c", buf[i]);
-
-	printk(KERN_INFO "\nBINARY BUFFER DUMP (len: %x):\n", len);
-
-	for (i = 0; i < len; i++)
-		printk(KERN_INFO "%x", buf[i]);
-
-	printk(KERN_INFO "\n");
-}
-
-/* this is only for debug */
-void dump_eprom(struct net_device *dev)
-{
-	int i;
-
-	for (i = 0; i < 0xff; i++)
-		RT_TRACE(COMP_INIT, "EEPROM addr %x : %x", i,
-			 eprom_read(dev, i));
-}
-
-/* this is only for debug */
-void rtl8192_dump_reg(struct net_device *dev)
-{
-	int i;
-	int n;
-	int max = 0x5ff;
-
-	RT_TRACE(COMP_INIT, "Dumping NIC register map");
-
-	for (n = 0; n <= max; ) {
-		printk(KERN_INFO "\nD: %2x> ", n);
-		for (i = 0; i < 16 && n <= max; i++, n++)
-			printk(KERN_INFO "%2x ", read_nic_byte(dev, n));
-	}
-	printk(KERN_INFO "\n");
-}
-
 /****************************************************************************
    -----------------------------PROCFS STUFF-------------------------
 *****************************************************************************/
diff --git a/drivers/staging/rtl8192e/rtl_dm.c b/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c
index a7fa9aad6f2d..a7fa9aad6f2d 100644
--- a/drivers/staging/rtl8192e/rtl_dm.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_dm.c
diff --git a/drivers/staging/rtl8192e/rtl_dm.h b/drivers/staging/rtl8192e/rtl8192e/rtl_dm.h
index ab44a9a6927c..ab44a9a6927c 100644
--- a/drivers/staging/rtl8192e/rtl_dm.h
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_dm.h
diff --git a/drivers/staging/rtl8192e/rtl_eeprom.c b/drivers/staging/rtl8192e/rtl8192e/rtl_eeprom.c
index c1ccff4a8321..c1ccff4a8321 100644
--- a/drivers/staging/rtl8192e/rtl_eeprom.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_eeprom.c
diff --git a/drivers/staging/rtl8192e/rtl_eeprom.h b/drivers/staging/rtl8192e/rtl8192e/rtl_eeprom.h
index 9452e1683a72..9452e1683a72 100644
--- a/drivers/staging/rtl8192e/rtl_eeprom.h
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_eeprom.h
diff --git a/drivers/staging/rtl8192e/rtl_ethtool.c b/drivers/staging/rtl8192e/rtl8192e/rtl_ethtool.c
index 36452fb7cef8..36452fb7cef8 100644
--- a/drivers/staging/rtl8192e/rtl_ethtool.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_ethtool.c
diff --git a/drivers/staging/rtl8192e/rtl_pci.c b/drivers/staging/rtl8192e/rtl8192e/rtl_pci.c
index ddadcc3e4e7c..ddadcc3e4e7c 100644
--- a/drivers/staging/rtl8192e/rtl_pci.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_pci.c
diff --git a/drivers/staging/rtl8192e/rtl_pci.h b/drivers/staging/rtl8192e/rtl8192e/rtl_pci.h
index 7ea5a47dfd2b..28c7da677a80 100644
--- a/drivers/staging/rtl8192e/rtl_pci.h
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_pci.h
@@ -27,7 +27,6 @@
 
 #include <linux/types.h>
 #include <linux/pci.h>
-#include "rtllib.h"
 
 static inline void NdisRawWritePortUlong(u32 port,  u32 val)
 {
diff --git a/drivers/staging/rtl8192e/rtl_pm.c b/drivers/staging/rtl8192e/rtl8192e/rtl_pm.c
index 92e2fde7f5f4..8e1a5d55dce8 100644
--- a/drivers/staging/rtl8192e/rtl_pm.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_pm.c
@@ -17,7 +17,6 @@
  * wlanfae <wlanfae@realtek.com>
 ******************************************************************************/
 
-#ifdef CONFIG_PM_RTL
 #include "rtl_core.h"
 #include "r8192E_hw.h"
 #include "r8190P_rtl8256.h"
@@ -133,4 +132,3 @@ int rtl8192E_enable_wake(struct pci_dev *dev, pm_message_t state, int enable)
 	return -EAGAIN;
 }
 
-#endif
diff --git a/drivers/staging/rtl8192e/rtl_pm.h b/drivers/staging/rtl8192e/rtl8192e/rtl_pm.h
index 4d7f4067cc78..e5299fc3b34a 100644
--- a/drivers/staging/rtl8192e/rtl_pm.h
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_pm.h
@@ -17,8 +17,6 @@
  * wlanfae <wlanfae@realtek.com>
 ******************************************************************************/
 
-#ifdef CONFIG_PM_RTL
-
 #ifndef R8192E_PM_H
 #define R8192E_PM_H
 
@@ -31,5 +29,3 @@ int rtl8192E_resume(struct pci_dev *dev);
 int rtl8192E_enable_wake(struct pci_dev *dev, pm_message_t state, int enable);
 
 #endif
-
-#endif
diff --git a/drivers/staging/rtl8192e/rtl_ps.c b/drivers/staging/rtl8192e/rtl8192e/rtl_ps.c
index c9a7c563b682..c9a7c563b682 100644
--- a/drivers/staging/rtl8192e/rtl_ps.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_ps.c
diff --git a/drivers/staging/rtl8192e/rtl_ps.h b/drivers/staging/rtl8192e/rtl8192e/rtl_ps.h
index a9c2d799c08f..df79d6c4ca03 100644
--- a/drivers/staging/rtl8192e/rtl_ps.h
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_ps.h
@@ -26,7 +26,7 @@
 #define _RTL_PS_H
 
 #include <linux/types.h>
-#include "rtllib.h"
+
 struct net_device;
 
 #define RT_CHECK_FOR_HANG_PERIOD 2
diff --git a/drivers/staging/rtl8192e/rtl_wx.c b/drivers/staging/rtl8192e/rtl8192e/rtl_wx.c
index 93b1edbe6bae..4e93669210af 100644
--- a/drivers/staging/rtl8192e/rtl_wx.c
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_wx.c
@@ -19,7 +19,6 @@
 
 #include <linux/string.h>
 #include "rtl_core.h"
-#include "dot11d.h"
 
 #define RATE_COUNT 12
 static u32 rtl8192_rates[] = {
@@ -803,7 +802,7 @@ static int r8192_wx_set_enc(struct net_device *dev,
 
 		switch (wrqu->encoding.flags & IW_ENCODE_INDEX) {
 		case 0:
-			key_idx = ieee->tx_keyidx;
+			key_idx = ieee->crypt_info.tx_keyidx;
 			break;
 		case 1:
 			key_idx = 0;
diff --git a/drivers/staging/rtl8192e/rtl_wx.h b/drivers/staging/rtl8192e/rtl8192e/rtl_wx.h
index 6a51a25ec87d..6a51a25ec87d 100644
--- a/drivers/staging/rtl8192e/rtl_wx.h
+++ b/drivers/staging/rtl8192e/rtl8192e/rtl_wx.h
diff --git a/drivers/staging/rtl8192e/rtl819x_BAProc.c b/drivers/staging/rtl8192e/rtl819x_BAProc.c
index 8b9d85c48be6..32fbbc9d0d92 100644
--- a/drivers/staging/rtl8192e/rtl819x_BAProc.c
+++ b/drivers/staging/rtl8192e/rtl819x_BAProc.c
@@ -18,7 +18,6 @@
 ******************************************************************************/
 #include "rtllib.h"
 #include "rtl819x_BA.h"
-#include "rtl_core.h"
 
 static void ActivateBAEntry(struct rtllib_device *ieee, struct ba_record *pBA,
 			    u16 Time)
diff --git a/drivers/staging/rtl8192e/rtl819x_HTProc.c b/drivers/staging/rtl8192e/rtl819x_HTProc.c
index b1c0c566882f..8b7412980ebb 100644
--- a/drivers/staging/rtl8192e/rtl819x_HTProc.c
+++ b/drivers/staging/rtl8192e/rtl819x_HTProc.c
@@ -943,8 +943,8 @@ void HTResetSelfAndSavePeerSetting(struct rtllib_device *ieee,
 	}
 }
 
-void HTUpdateSelfAndPeerSetting(struct rtllib_device *ieee,
-				struct rtllib_network *pNetwork)
+void HT_update_self_and_peer_setting(struct rtllib_device *ieee,
+				     struct rtllib_network *pNetwork)
 {
 	struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 	struct ht_info_ele *pPeerHTInfo =
@@ -955,6 +955,7 @@ void HTUpdateSelfAndPeerSetting(struct rtllib_device *ieee,
 			pHTInfo->CurrentOpMode = pPeerHTInfo->OptMode;
 	}
 }
+EXPORT_SYMBOL(HT_update_self_and_peer_setting);
 
 void HTUseDefaultSetting(struct rtllib_device *ieee)
 {
diff --git a/drivers/staging/rtl8192e/rtl819x_TSProc.c b/drivers/staging/rtl8192e/rtl819x_TSProc.c
index 09a602f74329..711a096be7a7 100644
--- a/drivers/staging/rtl8192e/rtl819x_TSProc.c
+++ b/drivers/staging/rtl8192e/rtl819x_TSProc.c
@@ -497,6 +497,7 @@ void RemovePeerTS(struct rtllib_device *ieee, u8 *Addr)
 		}
 	}
 }
+EXPORT_SYMBOL(RemovePeerTS);
 
 void RemoveAllTS(struct rtllib_device *ieee)
 {
diff --git a/drivers/staging/rtl8192e/rtl_debug.h b/drivers/staging/rtl8192e/rtl_debug.h
deleted file mode 100644
index 50fb9a9b828a..000000000000
--- a/drivers/staging/rtl8192e/rtl_debug.h
+++ /dev/null
@@ -1,299 +0,0 @@
-/******************************************************************************
- * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
- *
- * Based on the r8180 driver, which is:
- * Copyright 2004-2005 Andrea Merello <andreamrl@tiscali.it>, et al.
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of version 2 of the GNU General Public License as
- * published by the Free Software Foundation.
- *
- * This program is distributed in the hope that it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- * The full GNU General Public License is included in this distribution in the
- * file called LICENSE.
- *
- * Contact Information:
- * wlanfae <wlanfae@realtek.com>
-******************************************************************************/
-#ifndef _RTL_DEBUG_H
-#define _RTL_DEBUG_H
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/version.h>
-#include <linux/debugfs.h>
-
-struct r8192_priv;
-struct _tx_desc_8192se;
-struct _TX_DESC_8192CE;
-struct net_device;
-
-#define	DBG_LOUD	4
-
-#define RT_ASSERT(_Exp, Fmt)				\
-		if (!(_Exp)) {				\
-			printk("Rtl819x: ");		\
-			printk Fmt;			\
-		}
-
-enum dbgp_flag {
-	FQoS				= 0,
-	FTX				= 1,
-	FRX				= 2,
-	FSEC				= 3,
-	FMGNT				= 4,
-	FMLME				= 5,
-	FRESOURCE			= 6,
-	FBEACON				= 7,
-	FISR				= 8,
-	FPHY				= 9,
-	FMP				= 10,
-	FEEPROM				= 11,
-	FPWR				= 12,
-	FDM				= 13,
-	FDBGCtrl			= 14,
-	FC2H				= 15,
-	FBT				= 16,
-	FINIT				= 17,
-	FIOCTL				= 18,
-	DBGP_TYPE_MAX
-};
-
-#define		QoS_INIT				BIT0
-#define		QoS_VISTA				BIT1
-
-#define		TX_DESC					BIT0
-#define		TX_DESC_TID				BIT1
-
-#define		RX_DATA					BIT0
-#define		RX_PHY_STS				BIT1
-#define		RX_PHY_SS				BIT2
-#define		RX_PHY_SQ				BIT3
-#define		RX_PHY_ASTS				BIT4
-#define		RX_ERR_LEN				BIT5
-#define		RX_DEFRAG				BIT6
-#define		RX_ERR_RATE				BIT7
-
-
-
-#define		MEDIA_STS				BIT0
-#define		LINK_STS				BIT1
-
-#define		OS_CHK					BIT0
-
-#define		BCN_SHOW				BIT0
-#define		BCN_PEER				BIT1
-
-#define		ISR_CHK					BIT0
-
-#define		PHY_BBR					BIT0
-#define		PHY_BBW					BIT1
-#define		PHY_RFR					BIT2
-#define		PHY_RFW					BIT3
-#define		PHY_MACR				BIT4
-#define		PHY_MACW				BIT5
-#define		PHY_ALLR				BIT6
-#define		PHY_ALLW				BIT7
-#define		PHY_TXPWR				BIT8
-#define		PHY_PWRDIFF				BIT9
-
-#define		MP_RX					BIT0
-#define		MP_SWICH_CH				BIT1
-
-#define		EEPROM_W				BIT0
-#define		EFUSE_PG				BIT1
-#define		EFUSE_READ_ALL				BIT2
-
-#define		LPS					BIT0
-#define		IPS					BIT1
-#define		PWRSW					BIT2
-#define		PWRHW					BIT3
-#define		PWRHAL					BIT4
-
-#define		WA_IOT					BIT0
-#define		DM_PWDB					BIT1
-#define		DM_Monitor				BIT2
-#define		DM_DIG					BIT3
-#define		DM_EDCA_Turbo				BIT4
-
-#define		DbgCtrl_Trace				BIT0
-#define		DbgCtrl_InbandNoise			BIT1
-
-#define		BT_TRACE				BIT0
-#define		BT_RFPoll				BIT1
-
-#define		C2H_Summary				BIT0
-#define		C2H_PacketData				BIT1
-#define		C2H_ContentData				BIT2
-#define		BT_TRACE				BIT0
-#define		BT_RFPoll				BIT1
-
-#define		INIT_EEPROM				BIT0
-#define		INIT_TxPower				BIT1
-#define		INIT_IQK				BIT2
-#define		INIT_RF					BIT3
-
-#define		IOCTL_TRACE				BIT0
-#define		IOCTL_BT_EVENT				BIT1
-#define		IOCTL_BT_EVENT_DETAIL			BIT2
-#define		IOCTL_BT_TX_ACLDATA			BIT3
-#define		IOCTL_BT_TX_ACLDATA_DETAIL		BIT4
-#define		IOCTL_BT_RX_ACLDATA			BIT5
-#define		IOCTL_BT_RX_ACLDATA_DETAIL		BIT6
-#define		IOCTL_BT_HCICMD				BIT7
-#define		IOCTL_BT_HCICMD_DETAIL			BIT8
-#define		IOCTL_IRP				BIT9
-#define		IOCTL_IRP_DETAIL			BIT10
-#define		IOCTL_CALLBACK_FUN			BIT11
-#define		IOCTL_STATE				BIT12
-#define		IOCTL_BT_TP				BIT13
-#define		IOCTL_BT_LOGO				BIT14
-
-/* 2007/07/13 MH  ------For DeBuG Print modeue------*/
-/*------------------------------Define structure----------------------------*/
-
-
-/*------------------------Export Marco Definition---------------------------*/
-#define		DEBUG_PRINT		1
-
-#if (DEBUG_PRINT == 1)
-#define RTPRINT(dbgtype, dbgflag, printstr)			\
-{								\
-	if (DBGP_Type[dbgtype] & dbgflag) {			\
-		printk printstr;				\
-	}							\
-}
-
-#define	RTPRINT_ADDR(dbgtype, dbgflag, printstr, _Ptr)		\
-{								\
-	if (DBGP_Type[dbgtype] & dbgflag) {			\
-		int __i;					\
-		u8 *ptr = (u8 *)_Ptr;				\
-		printk printstr;				\
-		printk(" ");					\
-		for (__i = 0; __i < 6; __i++)			\
-			printk("%02X%s", ptr[__i],		\
-			       (__i == 5) ? "" : "-");		\
-			printk("\n");				\
-	}							\
-}
-
-#define RTPRINT_DATA(dbgtype, dbgflag, _TitleString, _HexData, _HexDataLen)\
-{								\
-	if (DBGP_Type[dbgtype] & dbgflag) {			\
-		int __i;					\
-		u8 *ptr = (u8 *)_HexData;			\
-		printk(_TitleString);				\
-		for (__i = 0; __i < (int)_HexDataLen; __i++) {	\
-			printk("%02X%s", ptr[__i], (((__i + 1)	\
-			       % 4) == 0) ? "  " : " ");	\
-			if (((__i + 1) % 16) == 0)		\
-				printk("\n");			\
-		}						\
-		printk("\n");					\
-	}							\
-}
-#else
-#define	RTPRINT(dbgtype, dbgflag, printstr)
-#define	RTPRINT_ADDR(dbgtype, dbgflag, printstr, _Ptr)
-#define RTPRINT_DATA(dbgtype, dbgflag, _TitleString, _HexData, _HexDataLen)
-#endif
-
-extern u32	DBGP_Type[DBGP_TYPE_MAX];
-
-#define RT_PRINT_DATA(_Comp, _Level, _TitleString, _HexData, _HexDataLen) \
-do {\
-	if (((_Comp) & rt_global_debug_component) &&			\
-	     (_Level <= rt_global_debug_component)) {			\
-		int __i;						\
-		u8*	ptr = (u8 *)_HexData;				\
-		printk(KERN_INFO "Rtl819x: ");				\
-		printk(_TitleString);					\
-		for (__i = 0; __i < (int)_HexDataLen; __i++) {		\
-			printk("%02X%s", ptr[__i], (((__i + 1) %	\
-			       4) == 0) ? "  " : " ");			\
-			if (((__i + 1) % 16) == 0)			\
-				printk("\n");				\
-		}							\
-		printk("\n");						\
-	} \
-} while (0);
-
-#define DMESG(x, a...)
-#define DMESGW(x, a...)
-#define DMESGE(x, a...)
-extern u32 rt_global_debug_component;
-#define RT_TRACE(component, x, args...) \
-do {			\
-	if (rt_global_debug_component & component) \
-		printk(KERN_DEBUG DRV_NAME ":" x "\n" , \
-		       ##args);\
-} while (0);
-
-#define assert(expr) \
-	if (!(expr)) {				  \
-		printk(KERN_INFO "Assertion failed! %s,%s,%s,line=%d\n", \
-		#expr, __FILE__, __func__, __LINE__);	  \
-	}
-#define RT_DEBUG_DATA(level, data, datalen)      \
-	do {								\
-		if ((rt_global_debug_component & (level)) == (level)) {\
-			int _i;				  \
-			u8 *_pdata = (u8 *)data;		 \
-			printk(KERN_DEBUG DRV_NAME ": %s()\n", __func__);   \
-			for (_i = 0; _i < (int)(datalen); _i++) {	\
-				printk(KERN_INFO "%2x ", _pdata[_i]);	\
-				if ((_i+1) % 16 == 0)			\
-					printk("\n");			\
-			}			       \
-			printk(KERN_INFO "\n");	  \
-		}				       \
-	} while (0)
-
-struct rtl_fs_debug {
-	const char *name;
-	struct dentry *dir_drv;
-	struct dentry *debug_register;
-	u32 hw_type;
-	u32 hw_offset;
-	bool hw_holding;
-};
-
-void print_buffer(u32 *buffer, int len);
-void dump_eprom(struct net_device *dev);
-void rtl8192_dump_reg(struct net_device *dev);
-
-/* debugfs stuff */
-static inline int rtl_debug_module_init(struct r8192_priv *priv,
-					const char *name)
-{
-	return 0;
-}
-
-static inline void rtl_debug_module_remove(struct r8192_priv *priv)
-{
-}
-
-static inline int rtl_create_debugfs_root(void)
-{
-	return 0;
-}
-
-static inline void rtl_remove_debugfs_root(void)
-{
-}
-
-/* proc stuff */
-void rtl8192_proc_init_one(struct net_device *dev);
-void rtl8192_proc_remove_one(struct net_device *dev);
-void rtl8192_proc_module_init(void);
-void rtl8192_proc_module_remove(void);
-void rtl8192_dbgp_flag_init(struct net_device *dev);
-
-#endif
diff --git a/drivers/staging/rtl8192e/rtllib.h b/drivers/staging/rtl8192e/rtllib.h
index de25975ccee4..e26aec86a5c8 100644
--- a/drivers/staging/rtl8192e/rtllib.h
+++ b/drivers/staging/rtl8192e/rtllib.h
@@ -25,7 +25,6 @@
 #define RTLLIB_H
 #include <linux/if_ether.h> /* ETH_ALEN */
 #include <linux/kernel.h>   /* ARRAY_SIZE */
-#include <linux/version.h>
 #include <linux/module.h>
 #include <linux/interrupt.h>
 #include <linux/jiffies.h>
@@ -36,12 +35,14 @@
 #include <linux/delay.h>
 #include <linux/wireless.h>
 
+#include "rtllib_debug.h"
 #include "rtl819x_HT.h"
 #include "rtl819x_BA.h"
 #include "rtl819x_TS.h"
 
 #include <linux/netdevice.h>
 #include <linux/if_arp.h> /* ARPHRD_ETHER */
+#include <net/lib80211.h>
 
 #define MAX_PRECMD_CNT 16
 #define MAX_RFDEPENDCMD_CNT 16
@@ -870,69 +871,6 @@ enum _REG_PREAMBLE_MODE {
 #define WLAN_ERP_USE_PROTECTION (1<<1)
 #define WLAN_ERP_BARKER_PREAMBLE (1<<2)
 
-/* Status codes */
-enum rtllib_statuscode {
-	WLAN_STATUS_SUCCESS = 0,
-	WLAN_STATUS_UNSPECIFIED_FAILURE = 1,
-	WLAN_STATUS_CAPS_UNSUPPORTED = 10,
-	WLAN_STATUS_REASSOC_NO_ASSOC = 11,
-	WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,
-	WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,
-	WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,
-	WLAN_STATUS_CHALLENGE_FAIL = 15,
-	WLAN_STATUS_AUTH_TIMEOUT = 16,
-	WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,
-	WLAN_STATUS_ASSOC_DENIED_RATES = 18,
-	/* 802.11b */
-	WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,
-	WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,
-	WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,
-	/* 802.11h */
-	WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,
-	WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,
-	WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,
-	/* 802.11g */
-	WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,
-	WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,
-	/* 802.11i */
-	WLAN_STATUS_INVALID_IE = 40,
-	WLAN_STATUS_INVALID_GROUP_CIPHER = 41,
-	WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,
-	WLAN_STATUS_INVALID_AKMP = 43,
-	WLAN_STATUS_UNSUPP_RSN_VERSION = 44,
-	WLAN_STATUS_INVALID_RSN_IE_CAP = 45,
-	WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,
-};
-
-/* Reason codes */
-enum rtllib_reasoncode {
-	WLAN_REASON_UNSPECIFIED = 1,
-	WLAN_REASON_PREV_AUTH_NOT_VALID = 2,
-	WLAN_REASON_DEAUTH_LEAVING = 3,
-	WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,
-	WLAN_REASON_DISASSOC_AP_BUSY = 5,
-	WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,
-	WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,
-	WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,
-	WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,
-	/* 802.11h */
-	WLAN_REASON_DISASSOC_BAD_POWER = 10,
-	WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,
-	/* 802.11i */
-	WLAN_REASON_INVALID_IE = 13,
-	WLAN_REASON_MIC_FAILURE = 14,
-	WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,
-	WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,
-	WLAN_REASON_IE_DIFFERENT = 17,
-	WLAN_REASON_INVALID_GROUP_CIPHER = 18,
-	WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,
-	WLAN_REASON_INVALID_AKMP = 20,
-	WLAN_REASON_UNSUPP_RSN_VERSION = 21,
-	WLAN_REASON_INVALID_RSN_IE_CAP = 22,
-	WLAN_REASON_IEEE8021X_FAILED = 23,
-	WLAN_REASON_CIPHER_SUITE_REJECTED = 24,
-};
-
 #define RTLLIB_STATMASK_SIGNAL (1<<0)
 #define RTLLIB_STATMASK_RSSI (1<<1)
 #define RTLLIB_STATMASK_NOISE (1<<2)
@@ -1122,8 +1060,6 @@ struct rtllib_stats {
 
 struct rtllib_device;
 
-#include "rtllib_crypt.h"
-
 #define SEC_KEY_1	 (1<<0)
 #define SEC_KEY_2	 (1<<1)
 #define SEC_KEY_3	 (1<<2)
@@ -1146,7 +1082,6 @@ struct rtllib_device;
 #define SEC_ALG_TKIP		2
 #define SEC_ALG_CCMP		4
 
-#define WEP_KEYS		4
 #define WEP_KEY_LEN		13
 #define SCM_KEY_LEN		32
 #define SCM_TEMPORAL_KEY_LENGTH 16
@@ -1158,8 +1093,8 @@ struct rtllib_security {
 	    auth_algo:4,
 	    unicast_uses_group:1,
 	    encrypt:1;
-	u8 key_sizes[WEP_KEYS];
-	u8 keys[WEP_KEYS][SCM_KEY_LEN];
+	u8 key_sizes[NUM_WEP_KEYS];
+	u8 keys[NUM_WEP_KEYS][SCM_KEY_LEN];
 	u8 level;
 	u16 flags;
 } __packed;
@@ -2251,14 +2186,10 @@ struct rtllib_device {
 	u8 ap_mac_addr[6];
 	u16 pairwise_key_type;
 	u16 group_key_type;
-	struct list_head crypt_deinit_list;
-	struct rtllib_crypt_data *crypt[WEP_KEYS];
 
-	int tx_keyidx; /* default TX key index (crypt[tx_keyidx]) */
-	struct sw_cam_table swcamtable[TOTAL_CAM_ENTRY];
-	struct timer_list crypt_deinit_timer;
-	int crypt_quiesced;
+	struct lib80211_crypt_info crypt_info;
 
+	struct sw_cam_table swcamtable[TOTAL_CAM_ENTRY];
 	int bcrx_sta_key; /* use individual keys to override default keys even
 			   * with RX of broad/multicast frames */
 
@@ -2774,7 +2705,7 @@ extern void rtllib_rx_mgt(struct rtllib_device *ieee,
 			     struct rtllib_rx_stats *stats);
 extern void rtllib_rx_probe_rq(struct rtllib_device *ieee,
 			   struct sk_buff *skb);
-extern int IsLegalChannel(struct rtllib_device *rtllib, u8 channel);
+extern int rtllib_legal_channel(struct rtllib_device *rtllib, u8 channel);
 
 /* rtllib_wx.c */
 extern int rtllib_wx_get_scan(struct rtllib_device *ieee,
@@ -2804,7 +2735,7 @@ extern int rtllib_wx_set_gen_ie(struct rtllib_device *ieee, u8 *ie, size_t len);
 
 /* rtllib_softmac.c */
 extern short rtllib_is_54g(struct rtllib_network *net);
-extern short rtllib_is_shortslot(struct rtllib_network net);
+extern short rtllib_is_shortslot(const struct rtllib_network *net);
 extern int rtllib_rx_frame_softmac(struct rtllib_device *ieee,
 				   struct sk_buff *skb,
 				   struct rtllib_rx_stats *rx_stats, u16 type,
@@ -2971,8 +2902,8 @@ extern void HTInitializeHTInfo(struct rtllib_device *ieee);
 extern void HTInitializeBssDesc(struct bss_ht *pBssHT);
 extern void HTResetSelfAndSavePeerSetting(struct rtllib_device *ieee,
 					  struct rtllib_network *pNetwork);
-extern void HTUpdateSelfAndPeerSetting(struct rtllib_device *ieee,
-				       struct rtllib_network *pNetwork);
+extern void HT_update_self_and_peer_setting(struct rtllib_device *ieee,
+					    struct rtllib_network *pNetwork);
 extern u8 HTGetHighestMCSRate(struct rtllib_device *ieee, u8 *pMCSRateSet,
 			      u8 *pMCSFilter);
 extern u8 MCS_FILTER_ALL[];
@@ -3052,21 +2983,6 @@ static inline const char *escape_essid(const char *essid, u8 essid_len)
 	(HTMcsToDataRate(_ieee, (u8)_MGN_RATE)))
 
 /* fun with the built-in rtllib stack... */
-int rtllib_init(void);
-void rtllib_exit(void);
-int rtllib_crypto_init(void);
-void rtllib_crypto_deinit(void);
-int rtllib_crypto_tkip_init(void);
-void rtllib_crypto_tkip_exit(void);
-int rtllib_crypto_ccmp_init(void);
-void rtllib_crypto_ccmp_exit(void);
-int rtllib_crypto_wep_init(void);
-void rtllib_crypto_wep_exit(void);
-
-void rtllib_MgntDisconnectIBSS(struct rtllib_device *rtllib);
-void rtllib_MlmeDisassociateRequest(struct rtllib_device *rtllib, u8 *asSta,
-				    u8 asRsn);
-void rtllib_MgntDisconnectAP(struct rtllib_device *rtllib, u8 asRsn);
 bool rtllib_MgntDisconnect(struct rtllib_device *rtllib, u8 asRsn);
 
 
@@ -3133,12 +3049,5 @@ extern void rtllib_TURBO_Info(struct rtllib_device *ieee, u8 **tag_p);
 #define MUTEX_LOCK_PRIV(pmutex) mutex_lock(pmutex)
 #define MUTEX_UNLOCK_PRIV(pmutex) mutex_unlock(pmutex)
 #endif
-static inline void dump_buf(u8 *buf, u32 len)
-{
-	u32 i;
-	printk(KERN_INFO "-----------------Len %d----------------\n", len);
-	for (i = 0; i < len; i++)
-		printk("%2.2x-", *(buf+i));
-	printk("\n");
-}
+
 #endif /* RTLLIB_H */
diff --git a/drivers/staging/rtl8192e/rtllib_crypt.c b/drivers/staging/rtl8192e/rtllib_crypt.c
index acda37b81848..86152d0e6b5d 100644
--- a/drivers/staging/rtl8192e/rtllib_crypt.c
+++ b/drivers/staging/rtl8192e/rtllib_crypt.c
@@ -11,7 +11,6 @@
  *
  */
 
-#include <linux/version.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/slab.h>
@@ -22,7 +21,7 @@
 
 struct rtllib_crypto_alg {
 	struct list_head list;
-	struct rtllib_crypto_ops *ops;
+	struct lib80211_crypto_ops *ops;
 };
 
 
@@ -33,15 +32,15 @@ struct rtllib_crypto {
 
 static struct rtllib_crypto *hcrypt;
 
-void rtllib_crypt_deinit_entries(struct rtllib_device *ieee,
+void rtllib_crypt_deinit_entries(struct lib80211_crypt_info *info,
 					   int force)
 {
 	struct list_head *ptr, *n;
-	struct rtllib_crypt_data *entry;
+	struct lib80211_crypt_data *entry;
 
-	for (ptr = ieee->crypt_deinit_list.next, n = ptr->next;
-	     ptr != &ieee->crypt_deinit_list; ptr = n, n = ptr->next) {
-		entry = list_entry(ptr, struct rtllib_crypt_data, list);
+	for (ptr = info->crypt_deinit_list.next, n = ptr->next;
+	     ptr != &info->crypt_deinit_list; ptr = n, n = ptr->next) {
+		entry = list_entry(ptr, struct lib80211_crypt_data, list);
 
 		if (atomic_read(&entry->refcnt) != 0 && !force)
 			continue;
@@ -53,28 +52,30 @@ void rtllib_crypt_deinit_entries(struct rtllib_device *ieee,
 		kfree(entry);
 	}
 }
+EXPORT_SYMBOL(rtllib_crypt_deinit_entries);
 
 void rtllib_crypt_deinit_handler(unsigned long data)
 {
-	struct rtllib_device *ieee = (struct rtllib_device *)data;
+	struct lib80211_crypt_info *info = (struct lib80211_crypt_info *)data;
 	unsigned long flags;
 
-	spin_lock_irqsave(&ieee->lock, flags);
-	rtllib_crypt_deinit_entries(ieee, 0);
-	if (!list_empty(&ieee->crypt_deinit_list)) {
+	spin_lock_irqsave(info->lock, flags);
+	rtllib_crypt_deinit_entries(info, 0);
+	if (!list_empty(&info->crypt_deinit_list)) {
 		printk(KERN_DEBUG "%s: entries remaining in delayed crypt "
-		       "deletion list\n", ieee->dev->name);
-		ieee->crypt_deinit_timer.expires = jiffies + HZ;
-		add_timer(&ieee->crypt_deinit_timer);
+		       "deletion list\n", info->name);
+		info->crypt_deinit_timer.expires = jiffies + HZ;
+		add_timer(&info->crypt_deinit_timer);
 	}
-	spin_unlock_irqrestore(&ieee->lock, flags);
+	spin_unlock_irqrestore(info->lock, flags);
 
 }
+EXPORT_SYMBOL(rtllib_crypt_deinit_handler);
 
-void rtllib_crypt_delayed_deinit(struct rtllib_device *ieee,
-				    struct rtllib_crypt_data **crypt)
+void rtllib_crypt_delayed_deinit(struct lib80211_crypt_info *info,
+				 struct lib80211_crypt_data **crypt)
 {
-	struct rtllib_crypt_data *tmp;
+	struct lib80211_crypt_data *tmp;
 	unsigned long flags;
 
 	if (*crypt == NULL)
@@ -87,16 +88,17 @@ void rtllib_crypt_delayed_deinit(struct rtllib_device *ieee,
 	 * decrypt operations. Use a list of delayed deinits to avoid needing
 	 * locking. */
 
-	spin_lock_irqsave(&ieee->lock, flags);
-	list_add(&tmp->list, &ieee->crypt_deinit_list);
-	if (!timer_pending(&ieee->crypt_deinit_timer)) {
-		ieee->crypt_deinit_timer.expires = jiffies + HZ;
-		add_timer(&ieee->crypt_deinit_timer);
+	spin_lock_irqsave(info->lock, flags);
+	list_add(&tmp->list, &info->crypt_deinit_list);
+	if (!timer_pending(&info->crypt_deinit_timer)) {
+		info->crypt_deinit_timer.expires = jiffies + HZ;
+		add_timer(&info->crypt_deinit_timer);
 	}
-	spin_unlock_irqrestore(&ieee->lock, flags);
+	spin_unlock_irqrestore(info->lock, flags);
 }
+EXPORT_SYMBOL(rtllib_crypt_delayed_deinit);
 
-int rtllib_register_crypto_ops(struct rtllib_crypto_ops *ops)
+int rtllib_register_crypto_ops(struct lib80211_crypto_ops *ops)
 {
 	unsigned long flags;
 	struct rtllib_crypto_alg *alg;
@@ -104,11 +106,10 @@ int rtllib_register_crypto_ops(struct rtllib_crypto_ops *ops)
 	if (hcrypt == NULL)
 		return -1;
 
-	alg = kmalloc(sizeof(*alg), GFP_KERNEL);
+	alg = kzalloc(sizeof(*alg), GFP_KERNEL);
 	if (alg == NULL)
 		return -ENOMEM;
 
-	memset(alg, 0, sizeof(*alg));
 	alg->ops = ops;
 
 	spin_lock_irqsave(&hcrypt->lock, flags);
@@ -120,8 +121,9 @@ int rtllib_register_crypto_ops(struct rtllib_crypto_ops *ops)
 
 	return 0;
 }
+EXPORT_SYMBOL(rtllib_register_crypto_ops);
 
-int rtllib_unregister_crypto_ops(struct rtllib_crypto_ops *ops)
+int rtllib_unregister_crypto_ops(struct lib80211_crypto_ops *ops)
 {
 	unsigned long flags;
 	struct list_head *ptr;
@@ -150,9 +152,10 @@ int rtllib_unregister_crypto_ops(struct rtllib_crypto_ops *ops)
 
 	return del_alg ? 0 : -1;
 }
+EXPORT_SYMBOL(rtllib_unregister_crypto_ops);
 
 
-struct rtllib_crypto_ops *rtllib_get_crypto_ops(const char *name)
+struct lib80211_crypto_ops *rtllib_get_crypto_ops(const char *name)
 {
 	unsigned long flags;
 	struct list_head *ptr;
@@ -177,12 +180,13 @@ struct rtllib_crypto_ops *rtllib_get_crypto_ops(const char *name)
 	else
 		return NULL;
 }
+EXPORT_SYMBOL(rtllib_get_crypto_ops);
 
 
 static void * rtllib_crypt_null_init(int keyidx) { return (void *) 1; }
 static void rtllib_crypt_null_deinit(void *priv) {}
 
-static struct rtllib_crypto_ops rtllib_crypt_null = {
+static struct lib80211_crypto_ops rtllib_crypt_null = {
 	.name			= "NULL",
 	.init			= rtllib_crypt_null_init,
 	.deinit			= rtllib_crypt_null_deinit,
@@ -192,8 +196,10 @@ static struct rtllib_crypto_ops rtllib_crypt_null = {
 	.decrypt_msdu		= NULL,
 	.set_key		= NULL,
 	.get_key		= NULL,
-	.extra_prefix_len	= 0,
-	.extra_postfix_len	= 0,
+	.extra_mpdu_prefix_len	= 0,
+	.extra_mpdu_postfix_len	= 0,
+	.extra_msdu_prefix_len	= 0,
+	.extra_msdu_postfix_len	= 0,
 	.owner			= THIS_MODULE,
 };
 
@@ -202,15 +208,14 @@ int __init rtllib_crypto_init(void)
 {
 	int ret = -ENOMEM;
 
-	hcrypt = kmalloc(sizeof(*hcrypt), GFP_KERNEL);
+	hcrypt = kzalloc(sizeof(*hcrypt), GFP_KERNEL);
 	if (!hcrypt)
 		goto out;
 
-	memset(hcrypt, 0, sizeof(*hcrypt));
 	INIT_LIST_HEAD(&hcrypt->algs);
 	spin_lock_init(&hcrypt->lock);
 
-	ret = rtllib_register_crypto_ops(&rtllib_crypt_null);
+	ret = lib80211_register_crypto_ops(&rtllib_crypt_null);
 	if (ret < 0) {
 		kfree(hcrypt);
 		hcrypt = NULL;
@@ -239,3 +244,8 @@ void __exit rtllib_crypto_deinit(void)
 
 	kfree(hcrypt);
 }
+
+module_init(rtllib_crypto_init);
+module_exit(rtllib_crypto_deinit);
+
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/rtl8192e/rtllib_crypt.h b/drivers/staging/rtl8192e/rtllib_crypt.h
index 49b90b73ed9c..e177c9287b44 100644
--- a/drivers/staging/rtl8192e/rtllib_crypt.h
+++ b/drivers/staging/rtl8192e/rtllib_crypt.h
@@ -25,61 +25,11 @@
 
 #include <linux/skbuff.h>
 
-struct rtllib_crypto_ops {
-	const char *name;
-
-	/* init new crypto context (e.g., allocate private data space,
-	 * select IV, etc.); returns NULL on failure or pointer to allocated
-	 * private data on success */
-	void * (*init)(int keyidx);
-
-	/* deinitialize crypto context and free allocated private data */
-	void (*deinit)(void *priv);
-
-	/* encrypt/decrypt return < 0 on error or >= 0 on success. The return
-	 * value from decrypt_mpdu is passed as the keyidx value for
-	 * decrypt_msdu. skb must have enough head and tail room for the
-	 * encryption; if not, error will be returned; these functions are
-	 * called for all MPDUs (i.e., fragments).
-	 */
-	int (*encrypt_mpdu)(struct sk_buff *skb, int hdr_len, void *priv);
-	int (*decrypt_mpdu)(struct sk_buff *skb, int hdr_len, void *priv);
-
-	/* These functions are called for full MSDUs, i.e. full frames.
-	 * These can be NULL if full MSDU operations are not needed. */
-	int (*encrypt_msdu)(struct sk_buff *skb, int hdr_len, void *priv);
-	int (*decrypt_msdu)(struct sk_buff *skb, int keyidx, int hdr_len,
-			    void *priv, struct rtllib_device* ieee);
-
-	int (*set_key)(void *key, int len, u8 *seq, void *priv);
-	int (*get_key)(void *key, int len, u8 *seq, void *priv);
-
-	/* procfs handler for printing out key information and possible
-	 * statistics */
-	char * (*print_stats)(char *p, void *priv);
-
-	/* maximum number of bytes added by encryption; encrypt buf is
-	 * allocated with extra_prefix_len bytes, copy of in_buf, and
-	 * extra_postfix_len; encrypt need not use all this space, but
-	 * the result must start at the beginning of the struct buffer and
-	 * correct length must be returned */
-	int extra_prefix_len, extra_postfix_len;
-
-	struct module *owner;
-};
-
-struct rtllib_crypt_data {
-	struct list_head list; /* delayed deletion list */
-	struct rtllib_crypto_ops *ops;
-	void *priv;
-	atomic_t refcnt;
-};
-
-int rtllib_register_crypto_ops(struct rtllib_crypto_ops *ops);
-int rtllib_unregister_crypto_ops(struct rtllib_crypto_ops *ops);
-struct rtllib_crypto_ops *rtllib_get_crypto_ops(const char *name);
-void rtllib_crypt_deinit_entries(struct rtllib_device *, int);
-void rtllib_crypt_deinit_handler(unsigned long);
-void rtllib_crypt_delayed_deinit(struct rtllib_device *ieee,
-				 struct rtllib_crypt_data **crypt);
+int rtllib_register_crypto_ops(struct lib80211_crypto_ops *ops);
+int rtllib_unregister_crypto_ops(struct lib80211_crypto_ops *ops);
+struct lib80211_crypto_ops *rtllib_get_crypto_ops(const char *name);
+void rtllib_crypt_deinit_entries(struct lib80211_crypt_info *info, int force);
+void rtllib_crypt_deinit_handler(unsigned long data);
+void rtllib_crypt_delayed_deinit(struct lib80211_crypt_info *info,
+				 struct lib80211_crypt_data **crypt);
 #endif
diff --git a/drivers/staging/rtl8192e/rtllib_crypt_ccmp.c b/drivers/staging/rtl8192e/rtllib_crypt_ccmp.c
index 6196b9aa3a09..4217b88e6fc3 100644
--- a/drivers/staging/rtl8192e/rtllib_crypt_ccmp.c
+++ b/drivers/staging/rtl8192e/rtllib_crypt_ccmp.c
@@ -9,7 +9,6 @@
  * more details.
  */
 
-#include <linux/version.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/slab.h>
@@ -63,10 +62,9 @@ static void *rtllib_ccmp_init(int key_idx)
 {
 	struct rtllib_ccmp_data *priv;
 
-	priv = kmalloc(sizeof(*priv), GFP_ATOMIC);
+	priv = kzalloc(sizeof(*priv), GFP_ATOMIC);
 	if (priv == NULL)
 		goto fail;
-	memset(priv, 0, sizeof(*priv));
 	priv->key_idx = key_idx;
 
 	priv->tfm = (void *)crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC);
@@ -429,13 +427,8 @@ static char *rtllib_ccmp_print_stats(char *p, void *priv)
 	return p;
 }
 
-void rtllib_ccmp_null(void)
-{
-	return;
-}
-
-static struct rtllib_crypto_ops rtllib_crypt_ccmp = {
-	.name			= "CCMP",
+static struct lib80211_crypto_ops rtllib_crypt_ccmp = {
+	.name			= "R-CCMP",
 	.init			= rtllib_ccmp_init,
 	.deinit			= rtllib_ccmp_deinit,
 	.encrypt_mpdu		= rtllib_ccmp_encrypt,
@@ -445,19 +438,24 @@ static struct rtllib_crypto_ops rtllib_crypt_ccmp = {
 	.set_key		= rtllib_ccmp_set_key,
 	.get_key		= rtllib_ccmp_get_key,
 	.print_stats		= rtllib_ccmp_print_stats,
-	.extra_prefix_len	= CCMP_HDR_LEN,
-	.extra_postfix_len	= CCMP_MIC_LEN,
+	.extra_mpdu_prefix_len = CCMP_HDR_LEN,
+	.extra_mpdu_postfix_len = CCMP_MIC_LEN,
 	.owner			= THIS_MODULE,
 };
 
 
 int __init rtllib_crypto_ccmp_init(void)
 {
-	return rtllib_register_crypto_ops(&rtllib_crypt_ccmp);
+	return lib80211_register_crypto_ops(&rtllib_crypt_ccmp);
 }
 
 
 void __exit rtllib_crypto_ccmp_exit(void)
 {
-	rtllib_unregister_crypto_ops(&rtllib_crypt_ccmp);
+	lib80211_unregister_crypto_ops(&rtllib_crypt_ccmp);
 }
+
+module_init(rtllib_crypto_ccmp_init);
+module_exit(rtllib_crypto_ccmp_exit);
+
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/rtl8192e/rtllib_crypt_tkip.c b/drivers/staging/rtl8192e/rtllib_crypt_tkip.c
index 6a0c87886422..800925053fb0 100644
--- a/drivers/staging/rtl8192e/rtllib_crypt_tkip.c
+++ b/drivers/staging/rtl8192e/rtllib_crypt_tkip.c
@@ -9,7 +9,6 @@
  * more details.
  */
 
-#include <linux/version.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/slab.h>
@@ -60,10 +59,9 @@ static void *rtllib_tkip_init(int key_idx)
 {
 	struct rtllib_tkip_data *priv;
 
-	priv = kmalloc(sizeof(*priv), GFP_ATOMIC);
+	priv = kzalloc(sizeof(*priv), GFP_ATOMIC);
 	if (priv == NULL)
 		goto fail;
-	memset(priv, 0, sizeof(*priv));
 	priv->key_idx = key_idx;
 	priv->tx_tfm_arc4 = crypto_alloc_blkcipher("ecb(arc4)", 0,
 			CRYPTO_ALG_ASYNC);
@@ -598,8 +596,7 @@ static void rtllib_michael_mic_failure(struct net_device *dev,
 }
 
 static int rtllib_michael_mic_verify(struct sk_buff *skb, int keyidx,
-				     int hdr_len, void *priv,
-				     struct rtllib_device *ieee)
+				     int hdr_len, void *priv)
 {
 	struct rtllib_tkip_data *tkey = priv;
 	u8 mic[8];
@@ -618,23 +615,20 @@ static int rtllib_michael_mic_verify(struct sk_buff *skb, int keyidx,
 			skb->data + hdr_len, skb->len - 8 - hdr_len, mic))
 		return -1;
 
-	if ((memcmp(mic, skb->data + skb->len - 8, 8) != 0) ||
-	   (ieee->force_mic_error)) {
+	if (memcmp(mic, skb->data + skb->len - 8, 8) != 0) {
 		struct rtllib_hdr_4addr *hdr;
 		hdr = (struct rtllib_hdr_4addr *) skb->data;
 		printk(KERN_DEBUG "%s: Michael MIC verification failed for "
 		       "MSDU from %pM keyidx=%d\n",
 		       skb->dev ? skb->dev->name : "N/A", hdr->addr2,
 		       keyidx);
-		printk(KERN_DEBUG "%d, force_mic_error = %d\n",
-		       (memcmp(mic, skb->data + skb->len - 8, 8) != 0),\
-			ieee->force_mic_error);
+		printk(KERN_DEBUG "%d\n",
+		       memcmp(mic, skb->data + skb->len - 8, 8) != 0);
 		if (skb->dev) {
 			printk(KERN_INFO "skb->dev != NULL\n");
 			rtllib_michael_mic_failure(skb->dev, hdr, keyidx);
 		}
 		tkey->dot11RSNAStatsTKIPLocalMICFailures++;
-		ieee->force_mic_error = false;
 		return -1;
 	}
 
@@ -740,9 +734,8 @@ static char *rtllib_tkip_print_stats(char *p, void *priv)
 	return p;
 }
 
-
-static struct rtllib_crypto_ops rtllib_crypt_tkip = {
-	.name			= "TKIP",
+static struct lib80211_crypto_ops rtllib_crypt_tkip = {
+	.name			= "R-TKIP",
 	.init			= rtllib_tkip_init,
 	.deinit			= rtllib_tkip_deinit,
 	.encrypt_mpdu		= rtllib_tkip_encrypt,
@@ -752,24 +745,25 @@ static struct rtllib_crypto_ops rtllib_crypt_tkip = {
 	.set_key		= rtllib_tkip_set_key,
 	.get_key		= rtllib_tkip_get_key,
 	.print_stats		= rtllib_tkip_print_stats,
-	.extra_prefix_len	= 4 + 4, /* IV + ExtIV */
-	.extra_postfix_len	= 8 + 4, /* MIC + ICV */
+	.extra_mpdu_prefix_len = 4 + 4,	/* IV + ExtIV */
+	.extra_mpdu_postfix_len = 4,	/* ICV */
+	.extra_msdu_postfix_len = 8,	/* MIC */
 	.owner			= THIS_MODULE,
 };
 
 
 int __init rtllib_crypto_tkip_init(void)
 {
-	return rtllib_register_crypto_ops(&rtllib_crypt_tkip);
+	return lib80211_register_crypto_ops(&rtllib_crypt_tkip);
 }
 
 
 void __exit rtllib_crypto_tkip_exit(void)
 {
-	rtllib_unregister_crypto_ops(&rtllib_crypt_tkip);
+	lib80211_unregister_crypto_ops(&rtllib_crypt_tkip);
 }
 
-void rtllib_tkip_null(void)
-{
-	return;
-}
+module_init(rtllib_crypto_tkip_init);
+module_exit(rtllib_crypto_tkip_exit);
+
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/rtl8192e/rtllib_crypt_wep.c b/drivers/staging/rtl8192e/rtllib_crypt_wep.c
index c59bf10fe780..8cdf38913a33 100644
--- a/drivers/staging/rtl8192e/rtllib_crypt_wep.c
+++ b/drivers/staging/rtl8192e/rtllib_crypt_wep.c
@@ -9,7 +9,6 @@
  * more details.
  */
 
-#include <linux/version.h>
 #include <linux/module.h>
 #include <linux/init.h>
 #include <linux/slab.h>
@@ -38,10 +37,9 @@ static void *prism2_wep_init(int keyidx)
 {
 	struct prism2_wep_data *priv;
 
-	priv = kmalloc(sizeof(*priv), GFP_ATOMIC);
+	priv = kzalloc(sizeof(*priv), GFP_ATOMIC);
 	if (priv == NULL)
 		goto fail;
-	memset(priv, 0, sizeof(*priv));
 	priv->key_idx = keyidx;
 
 	priv->tx_tfm = crypto_alloc_blkcipher("ecb(arc4)", 0, CRYPTO_ALG_ASYNC);
@@ -257,9 +255,8 @@ static char *prism2_wep_print_stats(char *p, void *priv)
 	return p;
 }
 
-
-static struct rtllib_crypto_ops rtllib_crypt_wep = {
-	.name			= "WEP",
+static struct lib80211_crypto_ops rtllib_crypt_wep = {
+	.name			= "R-WEP",
 	.init			= prism2_wep_init,
 	.deinit			= prism2_wep_deinit,
 	.encrypt_mpdu		= prism2_wep_encrypt,
@@ -269,24 +266,24 @@ static struct rtllib_crypto_ops rtllib_crypt_wep = {
 	.set_key		= prism2_wep_set_key,
 	.get_key		= prism2_wep_get_key,
 	.print_stats		= prism2_wep_print_stats,
-	.extra_prefix_len	= 4, /* IV */
-	.extra_postfix_len	= 4, /* ICV */
+	.extra_mpdu_prefix_len  = 4,	/* IV */
+	.extra_mpdu_postfix_len = 4,	/* ICV */
 	.owner			= THIS_MODULE,
 };
 
 
 int __init rtllib_crypto_wep_init(void)
 {
-	return rtllib_register_crypto_ops(&rtllib_crypt_wep);
+	return lib80211_register_crypto_ops(&rtllib_crypt_wep);
 }
 
 
 void __exit rtllib_crypto_wep_exit(void)
 {
-	rtllib_unregister_crypto_ops(&rtllib_crypt_wep);
+	lib80211_unregister_crypto_ops(&rtllib_crypt_wep);
 }
 
-void rtllib_wep_null(void)
-{
-	return;
-}
+module_init(rtllib_crypto_wep_init);
+module_exit(rtllib_crypto_wep_exit);
+
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/rtl8192e/rtllib_debug.h b/drivers/staging/rtl8192e/rtllib_debug.h
new file mode 100644
index 000000000000..2bfc1155f505
--- /dev/null
+++ b/drivers/staging/rtl8192e/rtllib_debug.h
@@ -0,0 +1,86 @@
+/******************************************************************************
+ * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
+ *
+ * Based on the r8180 driver, which is:
+ * Copyright 2004-2005 Andrea Merello <andreamrl@tiscali.it>, et al.
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 of the GNU General Public License as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
+ *
+ * The full GNU General Public License is included in this distribution in the
+ * file called LICENSE.
+ *
+ * Contact Information:
+ * wlanfae <wlanfae@realtek.com>
+******************************************************************************/
+#ifndef _RTL_DEBUG_H
+#define _RTL_DEBUG_H
+
+/* Allow files to override DRV_NAME */
+#ifndef DRV_NAME
+#define DRV_NAME "rtllib_92e"
+#endif
+
+#define DMESG(x, a...)
+
+extern u32 rt_global_debug_component;
+
+/* These are the defines for rt_global_debug_component */
+enum RTL_DEBUG {
+	COMP_TRACE		= (1 << 0),
+	COMP_DBG		= (1 << 1),
+	COMP_INIT		= (1 << 2),
+	COMP_RECV		= (1 << 3),
+	COMP_SEND		= (1 << 4),
+	COMP_CMD		= (1 << 5),
+	COMP_POWER		= (1 << 6),
+	COMP_EPROM		= (1 << 7),
+	COMP_SWBW		= (1 << 8),
+	COMP_SEC		= (1 << 9),
+	COMP_LPS		= (1 << 10),
+	COMP_QOS		= (1 << 11),
+	COMP_RATE		= (1 << 12),
+	COMP_RXDESC		= (1 << 13),
+	COMP_PHY		= (1 << 14),
+	COMP_DIG		= (1 << 15),
+	COMP_TXAGC		= (1 << 16),
+	COMP_HALDM		= (1 << 17),
+	COMP_POWER_TRACKING	= (1 << 18),
+	COMP_CH			= (1 << 19),
+	COMP_RF			= (1 << 20),
+	COMP_FIRMWARE		= (1 << 21),
+	COMP_HT			= (1 << 22),
+	COMP_RESET		= (1 << 23),
+	COMP_CMDPKT		= (1 << 24),
+	COMP_SCAN		= (1 << 25),
+	COMP_PS			= (1 << 26),
+	COMP_DOWN		= (1 << 27),
+	COMP_INTR		= (1 << 28),
+	COMP_LED		= (1 << 29),
+	COMP_MLME		= (1 << 30),
+	COMP_ERR		= (1 << 31)
+};
+
+#define RT_TRACE(component, x, args...)		\
+do {			\
+	if (rt_global_debug_component & component) \
+		printk(KERN_DEBUG DRV_NAME ":" x "\n" , \
+		       ##args);\
+} while (0);
+
+#define assert(expr) \
+	if (!(expr)) {				  \
+		printk(KERN_INFO "Assertion failed! %s,%s,%s,line=%d\n", \
+		#expr, __FILE__, __func__, __LINE__);	  \
+	}
+
+#endif
diff --git a/drivers/staging/rtl8192e/rtllib_module.c b/drivers/staging/rtl8192e/rtllib_module.c
index c36a140a4568..f9dae958a5d4 100644
--- a/drivers/staging/rtl8192e/rtllib_module.c
+++ b/drivers/staging/rtl8192e/rtllib_module.c
@@ -45,7 +45,6 @@
 #include <linux/slab.h>
 #include <linux/tcp.h>
 #include <linux/types.h>
-#include <linux/version.h>
 #include <linux/wireless.h>
 #include <linux/etherdevice.h>
 #include <linux/uaccess.h>
@@ -54,7 +53,9 @@
 #include "rtllib.h"
 
 
-#define DRV_NAME "rtllib_92e"
+u32 rt_global_debug_component = COMP_ERR;
+EXPORT_SYMBOL(rt_global_debug_component);
+
 
 void _setup_timer(struct timer_list *ptimer, void *fun, unsigned long data)
 {
@@ -135,10 +136,6 @@ struct net_device *alloc_rtllib(int sizeof_priv)
 	ieee->host_decrypt = 1;
 	ieee->ieee802_1x = 1; /* Default to supporting 802.1x */
 
-	INIT_LIST_HEAD(&ieee->crypt_deinit_list);
-	_setup_timer(&ieee->crypt_deinit_timer,
-		    rtllib_crypt_deinit_handler,
-		    (unsigned long) ieee);
 	ieee->rtllib_ap_sec_type = rtllib_ap_sec_type;
 
 	spin_lock_init(&ieee->lock);
@@ -148,6 +145,9 @@ struct net_device *alloc_rtllib(int sizeof_priv)
 	atomic_set(&(ieee->atm_chnlop), 0);
 	atomic_set(&(ieee->atm_swbw), 0);
 
+	/* SAM FIXME */
+	lib80211_crypt_info_init(&ieee->crypt_info, "RTLLIB", &ieee->lock);
+
 	ieee->bHalfNMode = false;
 	ieee->wpa_enabled = 0;
 	ieee->tkip_countermeasures = 0;
@@ -177,10 +177,6 @@ struct net_device *alloc_rtllib(int sizeof_priv)
 		ieee->last_packet_time[i] = 0;
 	}
 
-	rtllib_tkip_null();
-	rtllib_wep_null();
-	rtllib_ccmp_null();
-
 	return dev;
 
  failed:
@@ -188,32 +184,23 @@ struct net_device *alloc_rtllib(int sizeof_priv)
 		free_netdev(dev);
 	return NULL;
 }
+EXPORT_SYMBOL(alloc_rtllib);
 
 void free_rtllib(struct net_device *dev)
 {
 	struct rtllib_device *ieee = (struct rtllib_device *)
 				      netdev_priv_rsl(dev);
-	int i;
 
 	kfree(ieee->pHTInfo);
 	ieee->pHTInfo = NULL;
 	rtllib_softmac_free(ieee);
-	del_timer_sync(&ieee->crypt_deinit_timer);
-	rtllib_crypt_deinit_entries(ieee, 1);
-
-	for (i = 0; i < WEP_KEYS; i++) {
-		struct rtllib_crypt_data *crypt = ieee->crypt[i];
-		if (crypt) {
-			if (crypt->ops)
-				crypt->ops->deinit(crypt->priv);
-			kfree(crypt);
-			ieee->crypt[i] = NULL;
-		}
-	}
+
+	lib80211_crypt_info_free(&ieee->crypt_info);
 
 	rtllib_networks_free(ieee);
 	free_netdev(dev);
 }
+EXPORT_SYMBOL(free_rtllib);
 
 u32 rtllib_debug_level;
 static int debug = \
@@ -287,3 +274,8 @@ void __exit rtllib_exit(void)
 		rtllib_proc = NULL;
 	}
 }
+
+module_init(rtllib_init);
+module_exit(rtllib_exit);
+
+MODULE_LICENSE("GPL");
diff --git a/drivers/staging/rtl8192e/rtllib_rx.c b/drivers/staging/rtl8192e/rtllib_rx.c
index 8d0af5ed8ecf..6c5061f12bad 100644
--- a/drivers/staging/rtl8192e/rtllib_rx.c
+++ b/drivers/staging/rtl8192e/rtllib_rx.c
@@ -36,7 +36,6 @@
 #include <linux/slab.h>
 #include <linux/tcp.h>
 #include <linux/types.h>
-#include <linux/version.h>
 #include <linux/wireless.h>
 #include <linux/etherdevice.h>
 #include <linux/uaccess.h>
@@ -281,7 +280,7 @@ static int rtllib_is_eapol_frame(struct rtllib_device *ieee,
 /* Called only as a tasklet (software IRQ), by rtllib_rx */
 static inline int
 rtllib_rx_frame_decrypt(struct rtllib_device *ieee, struct sk_buff *skb,
-			struct rtllib_crypt_data *crypt)
+			struct lib80211_crypt_data *crypt)
 {
 	struct rtllib_hdr_4addr *hdr;
 	int res, hdrlen;
@@ -322,7 +321,7 @@ rtllib_rx_frame_decrypt(struct rtllib_device *ieee, struct sk_buff *skb,
 /* Called only as a tasklet (software IRQ), by rtllib_rx */
 static inline int
 rtllib_rx_frame_decrypt_msdu(struct rtllib_device *ieee, struct sk_buff *skb,
-			     int keyidx, struct rtllib_crypt_data *crypt)
+			     int keyidx, struct lib80211_crypt_data *crypt)
 {
 	struct rtllib_hdr_4addr *hdr;
 	int res, hdrlen;
@@ -341,7 +340,7 @@ rtllib_rx_frame_decrypt_msdu(struct rtllib_device *ieee, struct sk_buff *skb,
 	hdrlen = rtllib_get_hdrlen(le16_to_cpu(hdr->frame_ctl));
 
 	atomic_inc(&crypt->refcnt);
-	res = crypt->ops->decrypt_msdu(skb, keyidx, hdrlen, crypt->priv, ieee);
+	res = crypt->ops->decrypt_msdu(skb, keyidx, hdrlen, crypt->priv);
 	atomic_dec(&crypt->refcnt);
 	if (res < 0) {
 		printk(KERN_DEBUG "%s: MSDU decryption/MIC verification failed"
@@ -1010,7 +1009,7 @@ static int rtllib_rx_data_filter(struct rtllib_device *ieee, u16 fc,
 }
 
 static int rtllib_rx_get_crypt(struct rtllib_device *ieee, struct sk_buff *skb,
-			struct rtllib_crypt_data **crypt, size_t hdrlen)
+			struct lib80211_crypt_data **crypt, size_t hdrlen)
 {
 	struct rtllib_hdr_4addr *hdr = (struct rtllib_hdr_4addr *)skb->data;
 	u16 fc = le16_to_cpu(hdr->frame_ctl);
@@ -1020,7 +1019,7 @@ static int rtllib_rx_get_crypt(struct rtllib_device *ieee, struct sk_buff *skb,
 		if (skb->len >= hdrlen + 3)
 			idx = skb->data[hdrlen + 3] >> 6;
 
-		*crypt = ieee->crypt[idx];
+		*crypt = ieee->crypt_info.crypt[idx];
 		/* allow NULL decrypt to indicate an station specific override
 		 * for default encryption */
 		if (*crypt && ((*crypt)->ops == NULL ||
@@ -1045,7 +1044,7 @@ static int rtllib_rx_get_crypt(struct rtllib_device *ieee, struct sk_buff *skb,
 
 static int rtllib_rx_decrypt(struct rtllib_device *ieee, struct sk_buff *skb,
 		      struct rtllib_rx_stats *rx_stats,
-		      struct rtllib_crypt_data *crypt, size_t hdrlen)
+		      struct lib80211_crypt_data *crypt, size_t hdrlen)
 {
 	struct rtllib_hdr_4addr *hdr;
 	int keyidx = 0;
@@ -1253,7 +1252,7 @@ static int rtllib_rx_InfraAdhoc(struct rtllib_device *ieee, struct sk_buff *skb,
 {
 	struct net_device *dev = ieee->dev;
 	struct rtllib_hdr_4addr *hdr = (struct rtllib_hdr_4addr *)skb->data;
-	struct rtllib_crypt_data *crypt = NULL;
+	struct lib80211_crypt_data *crypt = NULL;
 	struct rtllib_rxb *rxb = NULL;
 	struct rx_ts_record *pTS = NULL;
 	u16 fc, sc, SeqNum = 0;
@@ -1497,6 +1496,7 @@ int rtllib_rx(struct rtllib_device *ieee, struct sk_buff *skb,
 	ieee->stats.rx_dropped++;
 	return 0;
 }
+EXPORT_SYMBOL(rtllib_rx);
 
 static u8 qos_oui[QOS_OUI_LEN] = { 0x00, 0x50, 0xF2 };
 
@@ -2492,7 +2492,7 @@ static int IsPassiveChannel(struct rtllib_device *rtllib, u8 channel)
 	return 0;
 }
 
-int IsLegalChannel(struct rtllib_device *rtllib, u8 channel)
+int rtllib_legal_channel(struct rtllib_device *rtllib, u8 channel)
 {
 	if (MAX_CHANNEL_NUMBER < channel) {
 		printk(KERN_INFO "%s(): Invalid Channel\n", __func__);
@@ -2503,6 +2503,7 @@ int IsLegalChannel(struct rtllib_device *rtllib, u8 channel)
 
 	return 0;
 }
+EXPORT_SYMBOL(rtllib_legal_channel);
 
 static inline void rtllib_process_probe_response(
 	struct rtllib_device *ieee,
@@ -2553,7 +2554,7 @@ static inline void rtllib_process_probe_response(
 	}
 
 
-	if (!IsLegalChannel(ieee, network->channel))
+	if (!rtllib_legal_channel(ieee, network->channel))
 		goto free_network;
 
 	if (WLAN_FC_GET_STYPE(beacon->header.frame_ctl) ==
diff --git a/drivers/staging/rtl8192e/rtllib_softmac.c b/drivers/staging/rtl8192e/rtllib_softmac.c
index b5086850f0de..1637f1110991 100644
--- a/drivers/staging/rtl8192e/rtllib_softmac.c
+++ b/drivers/staging/rtl8192e/rtllib_softmac.c
@@ -15,11 +15,9 @@
 
 
 #include "rtllib.h"
-#include "rtl_core.h"
 
 #include <linux/random.h>
 #include <linux/delay.h>
-#include <linux/version.h>
 #include <linux/uaccess.h>
 #include "dot11d.h"
 
@@ -28,9 +26,9 @@ short rtllib_is_54g(struct rtllib_network *net)
 	return (net->rates_ex_len > 0) || (net->rates_len > 4);
 }
 
-short rtllib_is_shortslot(struct rtllib_network net)
+short rtllib_is_shortslot(const struct rtllib_network *net)
 {
-	return net.capability & WLAN_CAPABILITY_SHORT_SLOT_TIME;
+	return net->capability & WLAN_CAPABILITY_SHORT_SLOT_TIME;
 }
 
 /* returns the total length needed for pleacing the RATE MFIE
@@ -468,6 +466,7 @@ void rtllib_EnableIntelPromiscuousMode(struct net_device *dev,
 
 	ieee->bNetPromiscuousMode = true;
 }
+EXPORT_SYMBOL(rtllib_EnableIntelPromiscuousMode);
 
 
 /*
@@ -490,6 +489,7 @@ void rtllib_DisableIntelPromiscuousMode(struct net_device *dev,
 
 	ieee->bNetPromiscuousMode = false;
 }
+EXPORT_SYMBOL(rtllib_DisableIntelPromiscuousMode);
 
 static void rtllib_send_probe(struct rtllib_device *ieee, u8 is_mesh)
 {
@@ -685,6 +685,7 @@ void rtllib_stop_send_beacons(struct rtllib_device *ieee)
 	if (ieee->softmac_features & IEEE_SOFTMAC_BEACONS)
 		rtllib_beacons_stop(ieee);
 }
+EXPORT_SYMBOL(rtllib_stop_send_beacons);
 
 
 void rtllib_start_send_beacons(struct rtllib_device *ieee)
@@ -694,6 +695,7 @@ void rtllib_start_send_beacons(struct rtllib_device *ieee)
 	if (ieee->softmac_features & IEEE_SOFTMAC_BEACONS)
 		rtllib_beacons_start(ieee);
 }
+EXPORT_SYMBOL(rtllib_start_send_beacons);
 
 
 static void rtllib_softmac_stop_scan(struct rtllib_device *ieee)
@@ -719,6 +721,7 @@ void rtllib_stop_scan(struct rtllib_device *ieee)
 			ieee->rtllib_stop_hw_scan(ieee->dev);
 	}
 }
+EXPORT_SYMBOL(rtllib_stop_scan);
 
 void rtllib_stop_scan_syncro(struct rtllib_device *ieee)
 {
@@ -729,6 +732,7 @@ void rtllib_stop_scan_syncro(struct rtllib_device *ieee)
 			ieee->rtllib_stop_hw_scan(ieee->dev);
 	}
 }
+EXPORT_SYMBOL(rtllib_stop_scan_syncro);
 
 bool rtllib_act_scanning(struct rtllib_device *ieee, bool sync_scan)
 {
@@ -741,6 +745,7 @@ bool rtllib_act_scanning(struct rtllib_device *ieee, bool sync_scan)
 		return test_bit(STATUS_SCANNING, &ieee->status);
 	}
 }
+EXPORT_SYMBOL(rtllib_act_scanning);
 
 /* called with ieee->lock held */
 static void rtllib_start_scan(struct rtllib_device *ieee)
@@ -781,6 +786,7 @@ void rtllib_start_scan_syncro(struct rtllib_device *ieee, u8 is_mesh)
 			ieee->rtllib_start_hw_scan(ieee->dev);
 	}
 }
+EXPORT_SYMBOL(rtllib_start_scan_syncro);
 
 inline struct sk_buff *rtllib_authentication_req(struct rtllib_network *beacon,
 	struct rtllib_device *ieee, int challengelen, u8 *daddr)
@@ -830,7 +836,7 @@ static struct sk_buff *rtllib_probe_resp(struct rtllib_device *ieee, u8 *dest)
 	struct sk_buff *skb = NULL;
 	int encrypt;
 	int atim_len, erp_len;
-	struct rtllib_crypt_data *crypt;
+	struct lib80211_crypt_data *crypt;
 
 	char *ssid = ieee->current_network.ssid;
 	int ssid_len = ieee->current_network.ssid_len;
@@ -865,9 +871,9 @@ static struct sk_buff *rtllib_probe_resp(struct rtllib_device *ieee, u8 *dest)
 	} else
 		erp_len = 0;
 
-	crypt = ieee->crypt[ieee->tx_keyidx];
+	crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
 	encrypt = ieee->host_encrypt && crypt && crypt->ops &&
-		((0 == strcmp(crypt->ops->name, "WEP") || wpa_ie_len));
+		((0 == strcmp(crypt->ops->name, "R-WEP") || wpa_ie_len));
 	if (ieee->pHTInfo->bCurrentHTSupport) {
 		tmp_ht_cap_buf = (u8 *) &(ieee->pHTInfo->SelfHTCap);
 		tmp_ht_cap_len = sizeof(ieee->pHTInfo->SelfHTCap);
@@ -917,7 +923,7 @@ static struct sk_buff *rtllib_probe_resp(struct rtllib_device *ieee, u8 *dest)
 		cpu_to_le16((beacon_buf->capability |=
 				 WLAN_CAPABILITY_SHORT_SLOT_TIME));
 
-	crypt = ieee->crypt[ieee->tx_keyidx];
+	crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
 	if (encrypt)
 		beacon_buf->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
 
@@ -976,7 +982,7 @@ static struct sk_buff *rtllib_assoc_resp(struct rtllib_device *ieee, u8 *dest)
 	struct sk_buff *skb;
 	u8 *tag;
 
-	struct rtllib_crypt_data *crypt;
+	struct lib80211_crypt_data *crypt;
 	struct rtllib_assoc_response_frame *assoc;
 	short encrypt;
 
@@ -1007,7 +1013,7 @@ static struct sk_buff *rtllib_assoc_resp(struct rtllib_device *ieee, u8 *dest)
 				 cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME);
 
 	if (ieee->host_encrypt)
-		crypt = ieee->crypt[ieee->tx_keyidx];
+		crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
 	else
 		crypt = NULL;
 
@@ -1172,7 +1178,7 @@ inline struct sk_buff *rtllib_association_req(struct rtllib_network *beacon,
 	unsigned int ckip_ie_len = 0;
 	unsigned int ccxrm_ie_len = 0;
 	unsigned int cxvernum_ie_len = 0;
-	struct rtllib_crypt_data *crypt;
+	struct lib80211_crypt_data *crypt;
 	int encrypt;
 	int	PMKCacheIdx;
 
@@ -1185,10 +1191,10 @@ inline struct sk_buff *rtllib_association_req(struct rtllib_network *beacon,
 	unsigned int turbo_info_len = beacon->Turbo_Enable ? 9 : 0;
 
 	int len = 0;
-	crypt = ieee->crypt[ieee->tx_keyidx];
+	crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
 	if (crypt != NULL)
 		encrypt = ieee->host_encrypt && crypt && crypt->ops &&
-			  ((0 == strcmp(crypt->ops->name, "WEP") ||
+			  ((0 == strcmp(crypt->ops->name, "R-WEP") ||
 			  wpa_ie_len));
 	else
 		encrypt = 0;
@@ -1956,6 +1962,7 @@ void rtllib_sta_ps_send_null_frame(struct rtllib_device *ieee, short pwr)
 	if (buf)
 		softmac_ps_mgmt_xmit(buf, ieee);
 }
+EXPORT_SYMBOL(rtllib_sta_ps_send_null_frame);
 
 void rtllib_sta_ps_send_pspoll_frame(struct rtllib_device *ieee)
 {
@@ -2168,6 +2175,7 @@ void rtllib_ps_tx_ack(struct rtllib_device *ieee, short success)
 	}
 	spin_unlock_irqrestore(&ieee->lock, flags);
 }
+EXPORT_SYMBOL(rtllib_ps_tx_ack);
 
 static void rtllib_process_action(struct rtllib_device *ieee, struct sk_buff *skb)
 {
@@ -2540,6 +2548,7 @@ void rtllib_reset_queue(struct rtllib_device *ieee)
 	spin_unlock_irqrestore(&ieee->lock, flags);
 
 }
+EXPORT_SYMBOL(rtllib_reset_queue);
 
 void rtllib_wake_queue(struct rtllib_device *ieee)
 {
@@ -2928,6 +2937,7 @@ struct sk_buff *rtllib_get_beacon(struct rtllib_device *ieee)
 
 	return skb;
 }
+EXPORT_SYMBOL(rtllib_get_beacon);
 
 void rtllib_softmac_stop_protocol(struct rtllib_device *ieee, u8 mesh_flag,
 				  u8 shutdown)
@@ -2937,6 +2947,7 @@ void rtllib_softmac_stop_protocol(struct rtllib_device *ieee, u8 mesh_flag,
 	rtllib_stop_protocol(ieee, shutdown);
 	up(&ieee->wx_sem);
 }
+EXPORT_SYMBOL(rtllib_softmac_stop_protocol);
 
 
 void rtllib_stop_protocol(struct rtllib_device *ieee, u8 shutdown)
@@ -2985,6 +2996,7 @@ void rtllib_softmac_start_protocol(struct rtllib_device *ieee, u8 mesh_flag)
 	rtllib_start_protocol(ieee);
 	up(&ieee->wx_sem);
 }
+EXPORT_SYMBOL(rtllib_softmac_start_protocol);
 
 void rtllib_start_protocol(struct rtllib_device *ieee)
 {
@@ -3048,10 +3060,9 @@ void rtllib_softmac_init(struct rtllib_device *ieee)
 	ieee->state = RTLLIB_NOLINK;
 	for (i = 0; i < 5; i++)
 		ieee->seq_ctrl[i] = 0;
-	ieee->pDot11dInfo = kmalloc(sizeof(struct rt_dot11d_info), GFP_ATOMIC);
+	ieee->pDot11dInfo = kzalloc(sizeof(struct rt_dot11d_info), GFP_ATOMIC);
 	if (!ieee->pDot11dInfo)
 		RTLLIB_DEBUG(RTLLIB_DL_ERR, "can't alloc memory for DOT11D\n");
-	memset(ieee->pDot11dInfo, 0, sizeof(struct rt_dot11d_info));
 	ieee->LinkDetectInfo.SlotIndex = 0;
 	ieee->LinkDetectInfo.SlotNum = 2;
 	ieee->LinkDetectInfo.NumRecvBcnInPeriod = 0;
@@ -3207,11 +3218,11 @@ static int rtllib_wpa_set_wpa_ie(struct rtllib_device *ieee,
 		return -EINVAL;
 
 	if (param->u.wpa_ie.len) {
-		buf = kmalloc(param->u.wpa_ie.len, GFP_KERNEL);
+		buf = kmemdup(param->u.wpa_ie.data, param->u.wpa_ie.len,
+			      GFP_KERNEL);
 		if (buf == NULL)
 			return -ENOMEM;
 
-		memcpy(buf, param->u.wpa_ie.data, param->u.wpa_ie.len);
 		kfree(ieee->wpa_ie);
 		ieee->wpa_ie = buf;
 		ieee->wpa_ie_len = param->u.wpa_ie.len;
@@ -3334,8 +3345,8 @@ static int rtllib_wpa_set_encryption(struct rtllib_device *ieee,
 				  u8 is_mesh)
 {
 	int ret = 0;
-	struct rtllib_crypto_ops *ops;
-	struct rtllib_crypt_data **crypt;
+	struct lib80211_crypto_ops *ops;
+	struct lib80211_crypt_data **crypt;
 
 	struct rtllib_security sec = {
 		.flags = 0,
@@ -3354,9 +3365,9 @@ static int rtllib_wpa_set_encryption(struct rtllib_device *ieee,
 	if (param->sta_addr[0] == 0xff && param->sta_addr[1] == 0xff &&
 	    param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff &&
 	    param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) {
-		if (param->u.crypt.idx >= WEP_KEYS)
+		if (param->u.crypt.idx >= NUM_WEP_KEYS)
 			return -EINVAL;
-		crypt = &ieee->crypt[param->u.crypt.idx];
+		crypt = &ieee->crypt_info.crypt[param->u.crypt.idx];
 	} else {
 		return -EINVAL;
 	}
@@ -3366,7 +3377,7 @@ static int rtllib_wpa_set_encryption(struct rtllib_device *ieee,
 			sec.enabled = 0;
 			sec.level = SEC_LEVEL_0;
 			sec.flags |= SEC_ENABLED | SEC_LEVEL;
-			rtllib_crypt_delayed_deinit(ieee, crypt);
+			lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
 		}
 		goto done;
 	}
@@ -3375,19 +3386,19 @@ static int rtllib_wpa_set_encryption(struct rtllib_device *ieee,
 
 	/* IPW HW cannot build TKIP MIC, host decryption still needed. */
 	if (!(ieee->host_encrypt || ieee->host_decrypt) &&
-	    strcmp(param->u.crypt.alg, "TKIP"))
+	    strcmp(param->u.crypt.alg, "R-TKIP"))
 		goto skip_host_crypt;
 
-	ops = rtllib_get_crypto_ops(param->u.crypt.alg);
-	if (ops == NULL && strcmp(param->u.crypt.alg, "WEP") == 0) {
+	ops = lib80211_get_crypto_ops(param->u.crypt.alg);
+	if (ops == NULL && strcmp(param->u.crypt.alg, "R-WEP") == 0) {
 		request_module("rtllib_crypt_wep");
-		ops = rtllib_get_crypto_ops(param->u.crypt.alg);
-	} else if (ops == NULL && strcmp(param->u.crypt.alg, "TKIP") == 0) {
+		ops = lib80211_get_crypto_ops(param->u.crypt.alg);
+	} else if (ops == NULL && strcmp(param->u.crypt.alg, "R-TKIP") == 0) {
 		request_module("rtllib_crypt_tkip");
-		ops = rtllib_get_crypto_ops(param->u.crypt.alg);
-	} else if (ops == NULL && strcmp(param->u.crypt.alg, "CCMP") == 0) {
+		ops = lib80211_get_crypto_ops(param->u.crypt.alg);
+	} else if (ops == NULL && strcmp(param->u.crypt.alg, "R-CCMP") == 0) {
 		request_module("rtllib_crypt_ccmp");
-		ops = rtllib_get_crypto_ops(param->u.crypt.alg);
+		ops = lib80211_get_crypto_ops(param->u.crypt.alg);
 	}
 	if (ops == NULL) {
 		printk(KERN_INFO "unknown crypto alg '%s'\n",
@@ -3397,17 +3408,17 @@ static int rtllib_wpa_set_encryption(struct rtllib_device *ieee,
 		goto done;
 	}
 	if (*crypt == NULL || (*crypt)->ops != ops) {
-		struct rtllib_crypt_data *new_crypt;
+		struct lib80211_crypt_data *new_crypt;
 
-		rtllib_crypt_delayed_deinit(ieee, crypt);
+		lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
 
-		new_crypt = (struct rtllib_crypt_data *)
+		new_crypt = (struct lib80211_crypt_data *)
 			kmalloc(sizeof(*new_crypt), GFP_KERNEL);
 		if (new_crypt == NULL) {
 			ret = -ENOMEM;
 			goto done;
 		}
-		memset(new_crypt, 0, sizeof(struct rtllib_crypt_data));
+		memset(new_crypt, 0, sizeof(struct lib80211_crypt_data));
 		new_crypt->ops = ops;
 		if (new_crypt->ops)
 			new_crypt->priv =
@@ -3435,7 +3446,7 @@ static int rtllib_wpa_set_encryption(struct rtllib_device *ieee,
 
  skip_host_crypt:
 	if (param->u.crypt.set_tx) {
-		ieee->tx_keyidx = param->u.crypt.idx;
+		ieee->crypt_info.tx_keyidx = param->u.crypt.idx;
 		sec.active_key = param->u.crypt.idx;
 		sec.flags |= SEC_ACTIVE_KEY;
 	} else
@@ -3448,13 +3459,13 @@ static int rtllib_wpa_set_encryption(struct rtllib_device *ieee,
 		sec.key_sizes[param->u.crypt.idx] = param->u.crypt.key_len;
 		sec.flags |= (1 << param->u.crypt.idx);
 
-		if (strcmp(param->u.crypt.alg, "WEP") == 0) {
+		if (strcmp(param->u.crypt.alg, "R-WEP") == 0) {
 			sec.flags |= SEC_LEVEL;
 			sec.level = SEC_LEVEL_1;
-		} else if (strcmp(param->u.crypt.alg, "TKIP") == 0) {
+		} else if (strcmp(param->u.crypt.alg, "R-TKIP") == 0) {
 			sec.flags |= SEC_LEVEL;
 			sec.level = SEC_LEVEL_2;
-		} else if (strcmp(param->u.crypt.alg, "CCMP") == 0) {
+		} else if (strcmp(param->u.crypt.alg, "R-CCMP") == 0) {
 			sec.flags |= SEC_LEVEL;
 			sec.level = SEC_LEVEL_3;
 		}
@@ -3551,13 +3562,13 @@ u8 rtllib_ap_sec_type(struct rtllib_device *ieee)
 	static u8 ccmp_ie[4] = {0x00, 0x50, 0xf2, 0x04};
 	static u8 ccmp_rsn_ie[4] = {0x00, 0x0f, 0xac, 0x04};
 	int wpa_ie_len = ieee->wpa_ie_len;
-	struct rtllib_crypt_data *crypt;
+	struct lib80211_crypt_data *crypt;
 	int encrypt;
 
-	crypt = ieee->crypt[ieee->tx_keyidx];
+	crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
 	encrypt = (ieee->current_network.capability & WLAN_CAPABILITY_PRIVACY)
 		  || (ieee->host_encrypt && crypt && crypt->ops &&
-		  (0 == strcmp(crypt->ops->name, "WEP")));
+		  (0 == strcmp(crypt->ops->name, "R-WEP")));
 
 	/* simply judge  */
 	if (encrypt && (wpa_ie_len == 0)) {
@@ -3634,6 +3645,7 @@ out:
 
 	return ret;
 }
+EXPORT_SYMBOL(rtllib_wpa_supplicant_ioctl);
 
 void rtllib_MgntDisconnectIBSS(struct rtllib_device *rtllib)
 {
@@ -3719,6 +3731,7 @@ bool rtllib_MgntDisconnect(struct rtllib_device *rtllib, u8 asRsn)
 
 	return true;
 }
+EXPORT_SYMBOL(rtllib_MgntDisconnect);
 
 void notify_wx_assoc_event(struct rtllib_device *ieee)
 {
@@ -3739,3 +3752,4 @@ void notify_wx_assoc_event(struct rtllib_device *ieee)
 	}
 	wireless_send_event(ieee->dev, SIOCGIWAP, &wrqu, NULL);
 }
+EXPORT_SYMBOL(notify_wx_assoc_event);
diff --git a/drivers/staging/rtl8192e/rtllib_softmac_wx.c b/drivers/staging/rtl8192e/rtllib_softmac_wx.c
index 22988fbd444b..1523bc7a2105 100644
--- a/drivers/staging/rtl8192e/rtllib_softmac_wx.c
+++ b/drivers/staging/rtl8192e/rtllib_softmac_wx.c
@@ -15,7 +15,6 @@
 
 
 #include "rtllib.h"
-#include "rtl_core.h"
 #include "dot11d.h"
 /* FIXME: add A freqs */
 
@@ -25,6 +24,7 @@ const long rtllib_wlan_frequencies[] = {
 	2452, 2457, 2462, 2467,
 	2472, 2484
 };
+EXPORT_SYMBOL(rtllib_wlan_frequencies);
 
 
 int rtllib_wx_set_freq(struct rtllib_device *ieee, struct iw_request_info *a,
@@ -82,6 +82,7 @@ out:
 	up(&ieee->wx_sem);
 	return ret;
 }
+EXPORT_SYMBOL(rtllib_wx_set_freq);
 
 
 int rtllib_wx_get_freq(struct rtllib_device *ieee,
@@ -97,6 +98,7 @@ int rtllib_wx_get_freq(struct rtllib_device *ieee,
 	fwrq->e = 1;
 	return 0;
 }
+EXPORT_SYMBOL(rtllib_wx_get_freq);
 
 int rtllib_wx_get_wap(struct rtllib_device *ieee,
 			    struct iw_request_info *info,
@@ -125,6 +127,7 @@ int rtllib_wx_get_wap(struct rtllib_device *ieee,
 
 	return 0;
 }
+EXPORT_SYMBOL(rtllib_wx_get_wap);
 
 
 int rtllib_wx_set_wap(struct rtllib_device *ieee,
@@ -184,6 +187,7 @@ out:
 	up(&ieee->wx_sem);
 	return ret;
 }
+EXPORT_SYMBOL(rtllib_wx_set_wap);
 
 int rtllib_wx_get_essid(struct rtllib_device *ieee, struct iw_request_info *a,
 			 union iwreq_data *wrqu, char *b)
@@ -220,6 +224,7 @@ out:
 	return ret;
 
 }
+EXPORT_SYMBOL(rtllib_wx_get_essid);
 
 int rtllib_wx_set_rate(struct rtllib_device *ieee,
 			     struct iw_request_info *info,
@@ -231,6 +236,7 @@ int rtllib_wx_set_rate(struct rtllib_device *ieee,
 	ieee->rate = target_rate/100000;
 	return 0;
 }
+EXPORT_SYMBOL(rtllib_wx_set_rate);
 
 int rtllib_wx_get_rate(struct rtllib_device *ieee,
 			     struct iw_request_info *info,
@@ -243,6 +249,7 @@ int rtllib_wx_get_rate(struct rtllib_device *ieee,
 
 	return 0;
 }
+EXPORT_SYMBOL(rtllib_wx_get_rate);
 
 
 int rtllib_wx_set_rts(struct rtllib_device *ieee,
@@ -259,6 +266,7 @@ int rtllib_wx_set_rts(struct rtllib_device *ieee,
 	}
 	return 0;
 }
+EXPORT_SYMBOL(rtllib_wx_set_rts);
 
 int rtllib_wx_get_rts(struct rtllib_device *ieee,
 			     struct iw_request_info *info,
@@ -269,6 +277,7 @@ int rtllib_wx_get_rts(struct rtllib_device *ieee,
 	wrqu->rts.disabled = (wrqu->rts.value == DEFAULT_RTS_THRESHOLD);
 	return 0;
 }
+EXPORT_SYMBOL(rtllib_wx_get_rts);
 
 int rtllib_wx_set_mode(struct rtllib_device *ieee, struct iw_request_info *a,
 			     union iwreq_data *wrqu, char *b)
@@ -314,6 +323,7 @@ out:
 	up(&ieee->wx_sem);
 	return set_mode_status;
 }
+EXPORT_SYMBOL(rtllib_wx_set_mode);
 
 void rtllib_wx_sync_scan_wq(void *data)
 {
@@ -428,6 +438,7 @@ out:
 	up(&ieee->wx_sem);
 	return ret;
 }
+EXPORT_SYMBOL(rtllib_wx_set_scan);
 
 int rtllib_wx_set_essid(struct rtllib_device *ieee,
 			struct iw_request_info *a,
@@ -490,6 +501,7 @@ out:
 	up(&ieee->wx_sem);
 	return ret;
 }
+EXPORT_SYMBOL(rtllib_wx_set_essid);
 
 int rtllib_wx_get_mode(struct rtllib_device *ieee, struct iw_request_info *a,
 		       union iwreq_data *wrqu, char *b)
@@ -497,6 +509,7 @@ int rtllib_wx_get_mode(struct rtllib_device *ieee, struct iw_request_info *a,
 	wrqu->mode = ieee->iw_mode;
 	return 0;
 }
+EXPORT_SYMBOL(rtllib_wx_get_mode);
 
 int rtllib_wx_set_rawtx(struct rtllib_device *ieee,
 			struct iw_request_info *info,
@@ -533,6 +546,7 @@ int rtllib_wx_set_rawtx(struct rtllib_device *ieee,
 
 	return 0;
 }
+EXPORT_SYMBOL(rtllib_wx_set_rawtx);
 
 int rtllib_wx_get_name(struct rtllib_device *ieee,
 			     struct iw_request_info *info,
@@ -548,6 +562,7 @@ int rtllib_wx_get_name(struct rtllib_device *ieee,
 		strcat(wrqu->name, "n");
 	return 0;
 }
+EXPORT_SYMBOL(rtllib_wx_get_name);
 
 
 /* this is mostly stolen from hostap */
@@ -605,6 +620,7 @@ exit:
 	return ret;
 
 }
+EXPORT_SYMBOL(rtllib_wx_set_power);
 
 /* this is stolen from hostap */
 int rtllib_wx_get_power(struct rtllib_device *ieee,
@@ -643,3 +659,4 @@ exit:
 	return ret;
 
 }
+EXPORT_SYMBOL(rtllib_wx_get_power);
diff --git a/drivers/staging/rtl8192e/rtllib_tx.c b/drivers/staging/rtl8192e/rtllib_tx.c
index 44e8006bc1af..f451bfc27a86 100644
--- a/drivers/staging/rtl8192e/rtllib_tx.c
+++ b/drivers/staging/rtl8192e/rtllib_tx.c
@@ -46,7 +46,6 @@
 #include <linux/slab.h>
 #include <linux/tcp.h>
 #include <linux/types.h>
-#include <linux/version.h>
 #include <linux/wireless.h>
 #include <linux/etherdevice.h>
 #include <linux/uaccess.h>
@@ -180,10 +179,10 @@ inline int rtllib_put_snap(u8 *data, u16 h_proto)
 int rtllib_encrypt_fragment(struct rtllib_device *ieee, struct sk_buff *frag,
 			    int hdr_len)
 {
-	struct rtllib_crypt_data *crypt = NULL;
+	struct lib80211_crypt_data *crypt = NULL;
 	int res;
 
-	crypt = ieee->crypt[ieee->tx_keyidx];
+	crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
 
 	if (!(crypt && crypt->ops)) {
 		printk(KERN_INFO "=========>%s(), crypt is null\n", __func__);
@@ -569,7 +568,7 @@ int rtllib_xmit_inter(struct sk_buff *skb, struct net_device *dev)
 	};
 	u8 dest[ETH_ALEN], src[ETH_ALEN];
 	int qos_actived = ieee->current_network.qos_data.active;
-	struct rtllib_crypt_data *crypt = NULL;
+	struct lib80211_crypt_data *crypt = NULL;
 	struct cb_desc *tcb_desc;
 	u8 bIsMulticast = false;
 	u8 IsAmsdu = false;
@@ -646,7 +645,7 @@ int rtllib_xmit_inter(struct sk_buff *skb, struct net_device *dev)
 		}
 
 		skb->priority = rtllib_classify(skb, IsAmsdu);
-		crypt = ieee->crypt[ieee->tx_keyidx];
+		crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
 		encrypt = !(ether_type == ETH_P_PAE && ieee->ieee802_1x) &&
 			ieee->host_encrypt && crypt && crypt->ops;
 		if (!encrypt && ieee->ieee802_1x &&
@@ -742,8 +741,10 @@ int rtllib_xmit_inter(struct sk_buff *skb, struct net_device *dev)
 		/* Each fragment may need to have room for encryptiong
 		 * pre/postfix */
 		if (encrypt) {
-			bytes_per_frag -= crypt->ops->extra_prefix_len +
-				crypt->ops->extra_postfix_len;
+			bytes_per_frag -= crypt->ops->extra_mpdu_prefix_len +
+				crypt->ops->extra_mpdu_postfix_len +
+				crypt->ops->extra_msdu_prefix_len +
+				crypt->ops->extra_msdu_postfix_len;
 		}
 		/* Number of fragments is the total bytes_per_frag /
 		* payload_per_fragment */
@@ -791,7 +792,8 @@ int rtllib_xmit_inter(struct sk_buff *skb, struct net_device *dev)
 				else
 					tcb_desc->bHwSec = 0;
 				skb_reserve(skb_frag,
-					    crypt->ops->extra_prefix_len);
+					    crypt->ops->extra_mpdu_prefix_len +
+					    crypt->ops->extra_msdu_prefix_len);
 			} else {
 				tcb_desc->bHwSec = 0;
 			}
@@ -965,3 +967,4 @@ int rtllib_xmit(struct sk_buff *skb, struct net_device *dev)
 	memset(skb->cb, 0, sizeof(skb->cb));
 	return rtllib_xmit_inter(skb, dev);
 }
+EXPORT_SYMBOL(rtllib_xmit);
diff --git a/drivers/staging/rtl8192e/rtllib_wx.c b/drivers/staging/rtl8192e/rtllib_wx.c
index 8cea4a60e1b3..c27ff7edbaf2 100644
--- a/drivers/staging/rtl8192e/rtllib_wx.c
+++ b/drivers/staging/rtl8192e/rtllib_wx.c
@@ -30,7 +30,6 @@
 
 ******************************************************************************/
 #include <linux/wireless.h>
-#include <linux/version.h>
 #include <linux/kmod.h>
 #include <linux/module.h>
 
@@ -295,6 +294,7 @@ int rtllib_wx_get_scan(struct rtllib_device *ieee,
 
 	return err;
 }
+EXPORT_SYMBOL(rtllib_wx_get_scan);
 
 int rtllib_wx_set_encode(struct rtllib_device *ieee,
 			    struct iw_request_info *info,
@@ -306,44 +306,44 @@ int rtllib_wx_set_encode(struct rtllib_device *ieee,
 		.flags = 0
 	};
 	int i, key, key_provided, len;
-	struct rtllib_crypt_data **crypt;
+	struct lib80211_crypt_data **crypt;
 
 	RTLLIB_DEBUG_WX("SET_ENCODE\n");
 
 	key = erq->flags & IW_ENCODE_INDEX;
 	if (key) {
-		if (key > WEP_KEYS)
+		if (key > NUM_WEP_KEYS)
 			return -EINVAL;
 		key--;
 		key_provided = 1;
 	} else {
 		key_provided = 0;
-		key = ieee->tx_keyidx;
+		key = ieee->crypt_info.tx_keyidx;
 	}
 
 	RTLLIB_DEBUG_WX("Key: %d [%s]\n", key, key_provided ?
 			   "provided" : "default");
-	crypt = &ieee->crypt[key];
+	crypt = &ieee->crypt_info.crypt[key];
 	if (erq->flags & IW_ENCODE_DISABLED) {
 		if (key_provided && *crypt) {
 			RTLLIB_DEBUG_WX("Disabling encryption on key %d.\n",
 					   key);
-			rtllib_crypt_delayed_deinit(ieee, crypt);
+			lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
 		} else
 			RTLLIB_DEBUG_WX("Disabling encryption.\n");
 
 		/* Check all the keys to see if any are still configured,
 		 * and if no key index was provided, de-init them all */
-		for (i = 0; i < WEP_KEYS; i++) {
-			if (ieee->crypt[i] != NULL) {
+		for (i = 0; i < NUM_WEP_KEYS; i++) {
+			if (ieee->crypt_info.crypt[i] != NULL) {
 				if (key_provided)
 					break;
-				rtllib_crypt_delayed_deinit(ieee,
-							    &ieee->crypt[i]);
+				lib80211_crypt_delayed_deinit(&ieee->crypt_info,
+							    &ieee->crypt_info.crypt[i]);
 			}
 		}
 
-		if (i == WEP_KEYS) {
+		if (i == NUM_WEP_KEYS) {
 			sec.enabled = 0;
 			sec.level = SEC_LEVEL_0;
 			sec.flags |= SEC_ENABLED | SEC_LEVEL;
@@ -358,25 +358,24 @@ int rtllib_wx_set_encode(struct rtllib_device *ieee,
 	sec.flags |= SEC_ENABLED;
 
 	if (*crypt != NULL && (*crypt)->ops != NULL &&
-	    strcmp((*crypt)->ops->name, "WEP") != 0) {
+	    strcmp((*crypt)->ops->name, "R-WEP") != 0) {
 		/* changing to use WEP; deinit previously used algorithm
 		 * on this key */
-		rtllib_crypt_delayed_deinit(ieee, crypt);
+		lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
 	}
 
 	if (*crypt == NULL) {
-		struct rtllib_crypt_data *new_crypt;
+		struct lib80211_crypt_data *new_crypt;
 
 		/* take WEP into use */
-		new_crypt = kmalloc(sizeof(struct rtllib_crypt_data),
+		new_crypt = kzalloc(sizeof(struct lib80211_crypt_data),
 				    GFP_KERNEL);
 		if (new_crypt == NULL)
 			return -ENOMEM;
-		memset(new_crypt, 0, sizeof(struct rtllib_crypt_data));
-		new_crypt->ops = rtllib_get_crypto_ops("WEP");
+		new_crypt->ops = lib80211_get_crypto_ops("R-WEP");
 		if (!new_crypt->ops) {
 			request_module("rtllib_crypt_wep");
-			new_crypt->ops = rtllib_get_crypto_ops("WEP");
+			new_crypt->ops = lib80211_get_crypto_ops("R-WEP");
 		}
 
 		if (new_crypt->ops)
@@ -412,7 +411,7 @@ int rtllib_wx_set_encode(struct rtllib_device *ieee,
 		 * explicitely set */
 		if (key == sec.active_key)
 			sec.flags |= SEC_ACTIVE_KEY;
-		ieee->tx_keyidx = key;
+		ieee->crypt_info.tx_keyidx = key;
 
 	} else {
 		len = (*crypt)->ops->get_key(sec.keys[key], WEP_KEY_LEN,
@@ -435,7 +434,7 @@ int rtllib_wx_set_encode(struct rtllib_device *ieee,
 		if (key_provided) {
 			RTLLIB_DEBUG_WX(
 				"Setting key %d to default Tx key.\n", key);
-			ieee->tx_keyidx = key;
+			ieee->crypt_info.tx_keyidx = key;
 			sec.active_key = key;
 			sec.flags |= SEC_ACTIVE_KEY;
 		}
@@ -470,6 +469,7 @@ int rtllib_wx_set_encode(struct rtllib_device *ieee,
 	}
 	return 0;
 }
+EXPORT_SYMBOL(rtllib_wx_set_encode);
 
 int rtllib_wx_get_encode(struct rtllib_device *ieee,
 			    struct iw_request_info *info,
@@ -477,7 +477,7 @@ int rtllib_wx_get_encode(struct rtllib_device *ieee,
 {
 	struct iw_point *erq = &(wrqu->encoding);
 	int len, key;
-	struct rtllib_crypt_data *crypt;
+	struct lib80211_crypt_data *crypt;
 
 	RTLLIB_DEBUG_WX("GET_ENCODE\n");
 
@@ -486,13 +486,13 @@ int rtllib_wx_get_encode(struct rtllib_device *ieee,
 
 	key = erq->flags & IW_ENCODE_INDEX;
 	if (key) {
-		if (key > WEP_KEYS)
+		if (key > NUM_WEP_KEYS)
 			return -EINVAL;
 		key--;
 	} else {
-		key = ieee->tx_keyidx;
+		key = ieee->crypt_info.tx_keyidx;
 	}
-	crypt = ieee->crypt[key];
+	crypt = ieee->crypt_info.crypt[key];
 
 	erq->flags = key + 1;
 
@@ -513,6 +513,7 @@ int rtllib_wx_get_encode(struct rtllib_device *ieee,
 
 	return 0;
 }
+EXPORT_SYMBOL(rtllib_wx_get_encode);
 
 int rtllib_wx_set_encode_ext(struct rtllib_device *ieee,
 			       struct iw_request_info *info,
@@ -525,29 +526,29 @@ int rtllib_wx_set_encode_ext(struct rtllib_device *ieee,
 	int i, idx;
 	int group_key = 0;
 	const char *alg, *module;
-	struct rtllib_crypto_ops *ops;
-	struct rtllib_crypt_data **crypt;
+	struct lib80211_crypto_ops *ops;
+	struct lib80211_crypt_data **crypt;
 
 	struct rtllib_security sec = {
 		.flags = 0,
 	};
 	idx = encoding->flags & IW_ENCODE_INDEX;
 	if (idx) {
-		if (idx < 1 || idx > WEP_KEYS)
+		if (idx < 1 || idx > NUM_WEP_KEYS)
 			return -EINVAL;
 		idx--;
 	} else{
-			idx = ieee->tx_keyidx;
+			idx = ieee->crypt_info.tx_keyidx;
 	}
 	if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) {
-		crypt = &ieee->crypt[idx];
+		crypt = &ieee->crypt_info.crypt[idx];
 		group_key = 1;
 	} else {
 		/* some Cisco APs use idx>0 for unicast in dynamic WEP */
 		if (idx != 0 && ext->alg != IW_ENCODE_ALG_WEP)
 			return -EINVAL;
 		if (ieee->iw_mode == IW_MODE_INFRA)
-			crypt = &ieee->crypt[idx];
+			crypt = &ieee->crypt_info.crypt[idx];
 		else
 			return -EINVAL;
 	}
@@ -556,13 +557,13 @@ int rtllib_wx_set_encode_ext(struct rtllib_device *ieee,
 	if ((encoding->flags & IW_ENCODE_DISABLED) ||
 	    ext->alg == IW_ENCODE_ALG_NONE) {
 		if (*crypt)
-			rtllib_crypt_delayed_deinit(ieee, crypt);
+			lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
 
-		for (i = 0; i < WEP_KEYS; i++) {
-			if (ieee->crypt[i] != NULL)
+		for (i = 0; i < NUM_WEP_KEYS; i++) {
+			if (ieee->crypt_info.crypt[i] != NULL)
 				break;
 		}
-		if (i == WEP_KEYS) {
+		if (i == NUM_WEP_KEYS) {
 			sec.enabled = 0;
 			sec.level = SEC_LEVEL_0;
 			sec.flags |= SEC_LEVEL;
@@ -573,15 +574,15 @@ int rtllib_wx_set_encode_ext(struct rtllib_device *ieee,
 	sec.enabled = 1;
 	switch (ext->alg) {
 	case IW_ENCODE_ALG_WEP:
-		alg = "WEP";
+		alg = "R-WEP";
 		module = "rtllib_crypt_wep";
 		break;
 	case IW_ENCODE_ALG_TKIP:
-		alg = "TKIP";
+		alg = "R-TKIP";
 		module = "rtllib_crypt_tkip";
 		break;
 	case IW_ENCODE_ALG_CCMP:
-		alg = "CCMP";
+		alg = "R-CCMP";
 		module = "rtllib_crypt_ccmp";
 		break;
 	default:
@@ -592,14 +593,14 @@ int rtllib_wx_set_encode_ext(struct rtllib_device *ieee,
 	}
 	printk(KERN_INFO "alg name:%s\n", alg);
 
-	 ops = rtllib_get_crypto_ops(alg);
+	ops = lib80211_get_crypto_ops(alg);
 	if (ops == NULL) {
 		char tempbuf[100];
 
 		memset(tempbuf, 0x00, 100);
 		sprintf(tempbuf, "%s", module);
 		request_module("%s", tempbuf);
-		ops = rtllib_get_crypto_ops(alg);
+		ops = lib80211_get_crypto_ops(alg);
 	}
 	if (ops == NULL) {
 		RTLLIB_DEBUG_WX("%s: unknown crypto alg %d\n",
@@ -610,9 +611,9 @@ int rtllib_wx_set_encode_ext(struct rtllib_device *ieee,
 	}
 
 	if (*crypt == NULL || (*crypt)->ops != ops) {
-		struct rtllib_crypt_data *new_crypt;
+		struct lib80211_crypt_data *new_crypt;
 
-		rtllib_crypt_delayed_deinit(ieee, crypt);
+		lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
 
 		new_crypt = kzalloc(sizeof(*new_crypt), GFP_KERNEL);
 		if (new_crypt == NULL) {
@@ -641,7 +642,7 @@ int rtllib_wx_set_encode_ext(struct rtllib_device *ieee,
 		goto done;
 	}
 	if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) {
-		ieee->tx_keyidx = idx;
+		ieee->crypt_info.tx_keyidx = idx;
 		sec.active_key = idx;
 		sec.flags |= SEC_ACTIVE_KEY;
 	}
@@ -674,6 +675,7 @@ done:
 	}
 	return ret;
 }
+EXPORT_SYMBOL(rtllib_wx_set_encode_ext);
 
 int rtllib_wx_get_encode_ext(struct rtllib_device *ieee,
 			       struct iw_request_info *info,
@@ -681,7 +683,7 @@ int rtllib_wx_get_encode_ext(struct rtllib_device *ieee,
 {
 	struct iw_point *encoding = &wrqu->encoding;
 	struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
-	struct rtllib_crypt_data *crypt;
+	struct lib80211_crypt_data *crypt;
 	int idx, max_key_len;
 
 	max_key_len = encoding->length - sizeof(*ext);
@@ -690,18 +692,18 @@ int rtllib_wx_get_encode_ext(struct rtllib_device *ieee,
 
 	idx = encoding->flags & IW_ENCODE_INDEX;
 	if (idx) {
-		if (idx < 1 || idx > WEP_KEYS)
+		if (idx < 1 || idx > NUM_WEP_KEYS)
 			return -EINVAL;
 		idx--;
 	} else {
-		idx = ieee->tx_keyidx;
+		idx = ieee->crypt_info.tx_keyidx;
 	}
 	if (!(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) &&
 	    (ext->alg != IW_ENCODE_ALG_WEP))
 		if (idx != 0 || (ieee->iw_mode != IW_MODE_INFRA))
 			return -EINVAL;
 
-	crypt = ieee->crypt[idx];
+	crypt = ieee->crypt_info.crypt[idx];
 
 	encoding->flags = idx + 1;
 	memset(ext, 0, sizeof(*ext));
@@ -711,11 +713,11 @@ int rtllib_wx_get_encode_ext(struct rtllib_device *ieee,
 		ext->key_len = 0;
 		encoding->flags |= IW_ENCODE_DISABLED;
 	} else {
-		if (strcmp(crypt->ops->name, "WEP") == 0)
+		if (strcmp(crypt->ops->name, "R-WEP") == 0)
 			ext->alg = IW_ENCODE_ALG_WEP;
-		else if (strcmp(crypt->ops->name, "TKIP"))
+		else if (strcmp(crypt->ops->name, "R-TKIP"))
 			ext->alg = IW_ENCODE_ALG_TKIP;
-		else if (strcmp(crypt->ops->name, "CCMP"))
+		else if (strcmp(crypt->ops->name, "R-CCMP"))
 			ext->alg = IW_ENCODE_ALG_CCMP;
 		else
 			return -EINVAL;
@@ -778,6 +780,7 @@ int rtllib_wx_set_mlme(struct rtllib_device *ieee,
 
 	return 0;
 }
+EXPORT_SYMBOL(rtllib_wx_set_mlme);
 
 int rtllib_wx_set_auth(struct rtllib_device *ieee,
 			       struct iw_request_info *info,
@@ -830,6 +833,7 @@ int rtllib_wx_set_auth(struct rtllib_device *ieee,
 	}
 	return 0;
 }
+EXPORT_SYMBOL(rtllib_wx_set_auth);
 
 int rtllib_wx_set_gen_ie(struct rtllib_device *ieee, u8 *ie, size_t len)
 {
@@ -846,10 +850,9 @@ int rtllib_wx_set_gen_ie(struct rtllib_device *ieee, u8 *ie, size_t len)
 
 			ieee->wps_ie_len = (len < MAX_WZC_IE_LEN) ? (len) :
 					   (MAX_WZC_IE_LEN);
-			buf = kmalloc(ieee->wps_ie_len, GFP_KERNEL);
+			buf = kmemdup(ie, ieee->wps_ie_len, GFP_KERNEL);
 			if (buf == NULL)
 				return -ENOMEM;
-			memcpy(buf, ie, ieee->wps_ie_len);
 			ieee->wps_ie = buf;
 			return 0;
 		}
@@ -860,10 +863,9 @@ int rtllib_wx_set_gen_ie(struct rtllib_device *ieee, u8 *ie, size_t len)
 	if (len) {
 		if (len != ie[1]+2)
 			return -EINVAL;
-		buf = kmalloc(len, GFP_KERNEL);
+		buf = kmemdup(ie, len, GFP_KERNEL);
 		if (buf == NULL)
 			return -ENOMEM;
-		memcpy(buf, ie, len);
 		kfree(ieee->wpa_ie);
 		ieee->wpa_ie = buf;
 		ieee->wpa_ie_len = len;
@@ -874,3 +876,4 @@ int rtllib_wx_set_gen_ie(struct rtllib_device *ieee, u8 *ie, size_t len)
 	}
 	return 0;
 }
+EXPORT_SYMBOL(rtllib_wx_set_gen_ie);
diff --git a/drivers/staging/rtl8192u/ieee80211/api.c b/drivers/staging/rtl8192u/ieee80211/api.c
deleted file mode 100644
index 5f46e50e586e..000000000000
--- a/drivers/staging/rtl8192u/ieee80211/api.c
+++ /dev/null
@@ -1,244 +0,0 @@
-/*
- * Scatterlist Cryptographic API.
- *
- * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
- * Copyright (c) 2002 David S. Miller (davem@redhat.com)
- *
- * Portions derived from Cryptoapi, by Alexander Kjeldaas <astor@fast.no>
- * and Nettle, by Niels M鰈ler.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms of the GNU General Public License as published by the Free
- * Software Foundation; either version 2 of the License, or (at your option)
- * any later version.
- *
- */
-#include "kmap_types.h"
-
-#include <linux/init.h>
-#include <linux/module.h>
-//#include <linux/crypto.h>
-#include "rtl_crypto.h"
-#include <linux/errno.h>
-#include <linux/rwsem.h>
-#include <linux/slab.h>
-#include "internal.h"
-
-LIST_HEAD(crypto_alg_list);
-DECLARE_RWSEM(crypto_alg_sem);
-
-static inline int crypto_alg_get(struct crypto_alg *alg)
-{
-	return try_inc_mod_count(alg->cra_module);
-}
-
-static inline void crypto_alg_put(struct crypto_alg *alg)
-{
-	if (alg->cra_module)
-		__MOD_DEC_USE_COUNT(alg->cra_module);
-}
-
-struct crypto_alg *crypto_alg_lookup(const char *name)
-{
-	struct crypto_alg *q, *alg = NULL;
-
-	if (!name)
-		return NULL;
-
-	down_read(&crypto_alg_sem);
-
-	list_for_each_entry(q, &crypto_alg_list, cra_list) {
-		if (!(strcmp(q->cra_name, name))) {
-			if (crypto_alg_get(q))
-				alg = q;
-			break;
-		}
-	}
-
-	up_read(&crypto_alg_sem);
-	return alg;
-}
-
-static int crypto_init_flags(struct crypto_tfm *tfm, u32 flags)
-{
-	tfm->crt_flags = 0;
-
-	switch (crypto_tfm_alg_type(tfm)) {
-	case CRYPTO_ALG_TYPE_CIPHER:
-		return crypto_init_cipher_flags(tfm, flags);
-
-	case CRYPTO_ALG_TYPE_DIGEST:
-		return crypto_init_digest_flags(tfm, flags);
-
-	case CRYPTO_ALG_TYPE_COMPRESS:
-		return crypto_init_compress_flags(tfm, flags);
-
-	default:
-		break;
-	}
-
-	BUG();
-	return -EINVAL;
-}
-
-static int crypto_init_ops(struct crypto_tfm *tfm)
-{
-	switch (crypto_tfm_alg_type(tfm)) {
-	case CRYPTO_ALG_TYPE_CIPHER:
-		return crypto_init_cipher_ops(tfm);
-
-	case CRYPTO_ALG_TYPE_DIGEST:
-		return crypto_init_digest_ops(tfm);
-
-	case CRYPTO_ALG_TYPE_COMPRESS:
-		return crypto_init_compress_ops(tfm);
-
-	default:
-		break;
-	}
-
-	BUG();
-	return -EINVAL;
-}
-
-static void crypto_exit_ops(struct crypto_tfm *tfm)
-{
-	switch (crypto_tfm_alg_type(tfm)) {
-	case CRYPTO_ALG_TYPE_CIPHER:
-		crypto_exit_cipher_ops(tfm);
-		break;
-
-	case CRYPTO_ALG_TYPE_DIGEST:
-		crypto_exit_digest_ops(tfm);
-		break;
-
-	case CRYPTO_ALG_TYPE_COMPRESS:
-		crypto_exit_compress_ops(tfm);
-		break;
-
-	default:
-		BUG();
-
-	}
-}
-
-struct crypto_tfm *crypto_alloc_tfm(const char *name, u32 flags)
-{
-	struct crypto_tfm *tfm = NULL;
-	struct crypto_alg *alg;
-
-	alg = crypto_alg_mod_lookup(name);
-	if (alg == NULL)
-		goto out;
-
-	tfm = kzalloc(sizeof(*tfm) + alg->cra_ctxsize, GFP_KERNEL);
-	if (tfm == NULL)
-		goto out_put;
-
-	tfm->__crt_alg = alg;
-
-	if (crypto_init_flags(tfm, flags))
-		goto out_free_tfm;
-
-	if (crypto_init_ops(tfm)) {
-		crypto_exit_ops(tfm);
-		goto out_free_tfm;
-	}
-
-	goto out;
-
-out_free_tfm:
-	kfree(tfm);
-	tfm = NULL;
-out_put:
-	crypto_alg_put(alg);
-out:
-	return tfm;
-}
-
-void crypto_free_tfm(struct crypto_tfm *tfm)
-{
-	struct crypto_alg *alg = tfm->__crt_alg;
-	int size = sizeof(*tfm) + alg->cra_ctxsize;
-
-	crypto_exit_ops(tfm);
-	crypto_alg_put(alg);
-	memset(tfm, 0, size);
-	kfree(tfm);
-}
-
-int crypto_register_alg(struct crypto_alg *alg)
-{
-	int ret = 0;
-	struct crypto_alg *q;
-
-	down_write(&crypto_alg_sem);
-
-	list_for_each_entry(q, &crypto_alg_list, cra_list) {
-		if (!(strcmp(q->cra_name, alg->cra_name))) {
-			ret = -EEXIST;
-			goto out;
-		}
-	}
-
-	list_add_tail(&alg->cra_list, &crypto_alg_list);
-out:
-	up_write(&crypto_alg_sem);
-	return ret;
-}
-
-int crypto_unregister_alg(struct crypto_alg *alg)
-{
-	int ret = -ENOENT;
-	struct crypto_alg *q;
-
-	BUG_ON(!alg->cra_module);
-
-	down_write(&crypto_alg_sem);
-	list_for_each_entry(q, &crypto_alg_list, cra_list) {
-		if (alg == q) {
-			list_del(&alg->cra_list);
-			ret = 0;
-			goto out;
-		}
-	}
-out:
-	up_write(&crypto_alg_sem);
-	return ret;
-}
-
-int crypto_alg_available(const char *name, u32 flags)
-{
-	int ret = 0;
-	struct crypto_alg *alg = crypto_alg_mod_lookup(name);
-
-	if (alg) {
-		crypto_alg_put(alg);
-		ret = 1;
-	}
-
-	return ret;
-}
-
-static int __init init_crypto(void)
-{
-	printk(KERN_INFO "Initializing Cryptographic API\n");
-	crypto_init_proc();
-	return 0;
-}
-
-__initcall(init_crypto);
-
-/*
-EXPORT_SYMBOL_GPL(crypto_register_alg);
-EXPORT_SYMBOL_GPL(crypto_unregister_alg);
-EXPORT_SYMBOL_GPL(crypto_alloc_tfm);
-EXPORT_SYMBOL_GPL(crypto_free_tfm);
-EXPORT_SYMBOL_GPL(crypto_alg_available);
-*/
-
-EXPORT_SYMBOL_NOVERS(crypto_register_alg);
-EXPORT_SYMBOL_NOVERS(crypto_unregister_alg);
-EXPORT_SYMBOL_NOVERS(crypto_alloc_tfm);
-EXPORT_SYMBOL_NOVERS(crypto_free_tfm);
-EXPORT_SYMBOL_NOVERS(crypto_alg_available);
diff --git a/drivers/staging/rtl8712/rtl871x_mlme.c b/drivers/staging/rtl8712/rtl871x_mlme.c
index ef8eb6c7ee41..4277d0304b7a 100644
--- a/drivers/staging/rtl8712/rtl871x_mlme.c
+++ b/drivers/staging/rtl8712/rtl871x_mlme.c
@@ -551,7 +551,7 @@ void r8712_survey_event_callback(struct _adapter *adapter, u8 *pbuf)
 			ibss_wlan = r8712_find_network(
 						&pmlmepriv->scanned_queue,
 						pnetwork->MacAddress);
-			if (!ibss_wlan) {
+			if (ibss_wlan) {
 				memcpy(ibss_wlan->network.IEs,
 					pnetwork->IEs, 8);
 				goto exit;
diff --git a/drivers/staging/rts5139/rts51x.h b/drivers/staging/rts5139/rts51x.h
index 9415d5c05502..b2c58390bfc5 100644
--- a/drivers/staging/rts5139/rts51x.h
+++ b/drivers/staging/rts5139/rts51x.h
@@ -34,7 +34,6 @@
 #include <linux/mutex.h>
 #include <linux/cdrom.h>
 #include <linux/kernel.h>
-#include <linux/version.h>
 
 #include <scsi/scsi.h>
 #include <scsi/scsi_cmnd.h>
diff --git a/drivers/staging/rts5139/rts51x_transport.h b/drivers/staging/rts5139/rts51x_transport.h
index f7aa87f7f1a9..8464c4836d5b 100644
--- a/drivers/staging/rts5139/rts51x_transport.h
+++ b/drivers/staging/rts5139/rts51x_transport.h
@@ -28,7 +28,6 @@
 #define __RTS51X_TRANSPORT_H
 
 #include <linux/kernel.h>
-#include <linux/version.h>
 
 #include "rts51x.h"
 #include "rts51x_chip.h"
diff --git a/drivers/staging/sep/sep_driver.c b/drivers/staging/sep/sep_driver.c
index f47571ea745d..6b3d156d4140 100644
--- a/drivers/staging/sep/sep_driver.c
+++ b/drivers/staging/sep/sep_driver.c
@@ -2120,6 +2120,8 @@ static int sep_prepare_input_output_dma_table_in_dcb(struct sep_device *sep,
 			}
 		}
 		if (tail_size) {
+			if (tail_size > sizeof(dcb_table_ptr->tail_data))
+				return -EINVAL;
 			if (is_kva == true) {
 				memcpy(dcb_table_ptr->tail_data,
 					(void *)(app_in_address + data_in_size -
diff --git a/drivers/staging/serial/68360serial.c b/drivers/staging/serial/68360serial.c
index 0a3e8787ed50..daf0b1d0dc28 100644
--- a/drivers/staging/serial/68360serial.c
+++ b/drivers/staging/serial/68360serial.c
@@ -2771,8 +2771,8 @@ static int __init rs_360_init(void)
 			*/
 			/* cpm_install_handler(IRQ_MACHSPEC | state->irq, rs_360_interrupt, info);  */
 			/*request_irq(IRQ_MACHSPEC | state->irq, rs_360_interrupt, */
-			request_irq(state->irq, rs_360_interrupt,
-						IRQ_FLG_LOCK, "ttyS", (void *)info);
+			request_irq(state->irq, rs_360_interrupt, 0, "ttyS",
+				    (void *)info);
 
 			/* Set up the baud rate generator.
 			*/
diff --git a/drivers/staging/sm7xx/smtcfb.c b/drivers/staging/sm7xx/smtcfb.c
index 39dbf339a4fc..ae0035f327e7 100644
--- a/drivers/staging/sm7xx/smtcfb.c
+++ b/drivers/staging/sm7xx/smtcfb.c
@@ -1024,9 +1024,9 @@ failed_free:
 
 /* Jason (08/11/2009) PCI_DRV wrapper essential structs */
 static DEFINE_PCI_DEVICE_TABLE(smtcfb_pci_table) = {
-	{0x126f, 0x710, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
-	{0x126f, 0x712, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
-	{0x126f, 0x720, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
+	{ PCI_DEVICE(0x126f, 0x710), },
+	{ PCI_DEVICE(0x126f, 0x712), },
+	{ PCI_DEVICE(0x126f, 0x720), },
 	{0,}
 };
 
diff --git a/drivers/staging/speakup/kobjects.c b/drivers/staging/speakup/kobjects.c
index 07a7f5432597..2093896c546b 100644
--- a/drivers/staging/speakup/kobjects.c
+++ b/drivers/staging/speakup/kobjects.c
@@ -265,12 +265,11 @@ static ssize_t keymap_store(struct kobject *kobj, struct kobj_attribute *attr,
 	unsigned long flags;
 
 	spk_lock(flags);
-	in_buff = kmalloc(count + 1, GFP_ATOMIC);
+	in_buff = kmemdup(buf, count + 1, GFP_ATOMIC);
 	if (!in_buff) {
 		spk_unlock(flags);
 		return -ENOMEM;
 	}
-	memcpy(in_buff, buf, count + 1);
 	if (strchr("dDrR", *in_buff)) {
 		set_key_info(key_defaults, key_buf);
 		pr_info("keymap set to default values\n");
diff --git a/drivers/staging/speakup/main.c b/drivers/staging/speakup/main.c
index 8be560458977..c7b03f0ef2dd 100644
--- a/drivers/staging/speakup/main.c
+++ b/drivers/staging/speakup/main.c
@@ -2268,8 +2268,6 @@ static int __init speakup_init(void)
 		set_mask_bits(0, i, 2);
 
 	set_key_info(key_defaults, key_buf);
-	if (quiet_boot)
-		spk_shut_up |= 0x01;
 
 	/* From here on out, initializations can fail. */
 	err = speakup_add_virtual_keyboard();
@@ -2292,6 +2290,9 @@ static int __init speakup_init(void)
 				goto error_kobjects;
 		}
 
+	if (quiet_boot)
+		spk_shut_up |= 0x01;
+
 	err = speakup_kobj_init();
 	if (err)
 		goto error_kobjects;
diff --git a/drivers/staging/spectra/Kconfig b/drivers/staging/spectra/Kconfig
deleted file mode 100644
index 4fc206484830..000000000000
--- a/drivers/staging/spectra/Kconfig
+++ /dev/null
@@ -1,41 +0,0 @@
-
-menuconfig SPECTRA
-	tristate "Denali Spectra Flash Translation Layer"
-	depends on BLOCK
-	depends on X86_MRST
-	default n
-	---help---
-	  Enable the FTL pseudo-filesystem used with the NAND Flash
-	  controller on Intel Moorestown Platform to pretend to be a disk.
-
-choice
-	prompt "Compile for"
-	depends on SPECTRA
-	default SPECTRA_MRST_HW
-
-config SPECTRA_MRST_HW
-	bool "Moorestown hardware mode"
-	help
-	  Driver communicates with the Moorestown hardware's register interface.
-	  in DMA mode.
-
-config SPECTRA_MTD
-	bool "Linux MTD mode"
-	depends on MTD
-	help
-	  Driver communicates with the kernel MTD subsystem instead of its own
-	  built-in hardware driver.
-
-config SPECTRA_EMU
-	bool "RAM emulator testing"
-	help
-	  Driver emulates Flash on a RAM buffer and / or disk file.  Useful to test the behavior of FTL layer.
-
-endchoice
-
-config SPECTRA_MRST_HW_DMA
-       bool
-       default n
-       depends on SPECTRA_MRST_HW
-       help
-         Use DMA for native hardware interface.
diff --git a/drivers/staging/spectra/Makefile b/drivers/staging/spectra/Makefile
deleted file mode 100644
index f777dfba05a5..000000000000
--- a/drivers/staging/spectra/Makefile
+++ /dev/null
@@ -1,11 +0,0 @@
-#
-# Makefile of Intel Moorestown NAND controller driver
-#
-
-obj-$(CONFIG_SPECTRA) += spectra.o
-spectra-y := ffsport.o flash.o lld.o
-spectra-$(CONFIG_SPECTRA_MRST_HW) += lld_nand.o 
-spectra-$(CONFIG_SPECTRA_MRST_HW_DMA) += lld_cdma.o
-spectra-$(CONFIG_SPECTRA_EMU) += lld_emu.o
-spectra-$(CONFIG_SPECTRA_MTD) += lld_mtd.o
-
diff --git a/drivers/staging/spectra/README b/drivers/staging/spectra/README
deleted file mode 100644
index ecba559b899c..000000000000
--- a/drivers/staging/spectra/README
+++ /dev/null
@@ -1,29 +0,0 @@
-This is a driver for NAND controller of Intel Moorestown platform.
-
-This driver is a standalone linux block device driver, it acts as if it's a normal hard disk.
-It includes three layer:
-	block layer interface - file ffsport.c
-	Flash Translation Layer (FTL) - file flash.c (implement the NAND flash Translation Layer, includs address mapping, garbage collection, wear-leveling and so on)
-	Low level layer - file lld_nand.c/lld_cdma.c/lld_emu.c (which implements actual controller hardware registers access)
-
-This driver can be build as modules or build-in.
-
-Dependency:
-This driver has dependency on IA Firmware of Intel Moorestown platform.
-It need the IA Firmware to create the block table for the first time.
-And to validate this driver code without IA Firmware, you can change the
-macro AUTO_FORMAT_FLASH from 0 to 1 in file spectraswconfig.h. Thus the
-driver will erase the whole nand flash and create a new block table.
-
-TODO:
-	- Enable Command DMA feature support
-	- lower the memory footprint
-	- Remove most of the unnecessary global variables
-	- Change all the upcase variable / functions name to lowercase
-	- Some other misc bugs
-
-Please send patches to:
-	Greg Kroah-Hartman <gregkh@suse.de>
-
-And Cc to: Gao Yunpeng <yunpeng.gao@intel.com>
-
diff --git a/drivers/staging/spectra/ffsdefs.h b/drivers/staging/spectra/ffsdefs.h
deleted file mode 100644
index a9e9cd233d2a..000000000000
--- a/drivers/staging/spectra/ffsdefs.h
+++ /dev/null
@@ -1,58 +0,0 @@
-/*
- * NAND Flash Controller Device Driver
- * Copyright (c) 2009, Intel Corporation and its suppliers.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- */
-
-#ifndef _FFSDEFS_
-#define _FFSDEFS_
-
-#define CLEAR 0			/*use this to clear a field instead of "fail"*/
-#define SET   1			/*use this to set a field instead of "pass"*/
-#define FAIL 1			/*failed flag*/
-#define PASS 0			/*success flag*/
-#define ERR -1			/*error flag*/
-
-#define   ERASE_CMD             10
-#define   WRITE_MAIN_CMD        11
-#define   READ_MAIN_CMD         12
-#define   WRITE_SPARE_CMD       13
-#define   READ_SPARE_CMD        14
-#define   WRITE_MAIN_SPARE_CMD  15
-#define   READ_MAIN_SPARE_CMD   16
-#define   MEMCOPY_CMD           17
-#define   DUMMY_CMD             99
-
-#define     EVENT_PASS                                  0x00
-#define     EVENT_CORRECTABLE_DATA_ERROR_FIXED         0x01
-#define     EVENT_UNCORRECTABLE_DATA_ERROR              0x02
-#define     EVENT_TIME_OUT                              0x03
-#define     EVENT_PROGRAM_FAILURE                       0x04
-#define     EVENT_ERASE_FAILURE                         0x05
-#define     EVENT_MEMCOPY_FAILURE                       0x06
-#define     EVENT_FAIL                                  0x07
-
-#define     EVENT_NONE                                  0x22
-#define     EVENT_DMA_CMD_COMP                          0x77
-#define     EVENT_ECC_TRANSACTION_DONE                  0x88
-#define     EVENT_DMA_CMD_FAIL                          0x99
-
-#define CMD_PASS        0
-#define CMD_FAIL        1
-#define CMD_ABORT       2
-#define CMD_NOT_DONE    3
-
-#endif /* _FFSDEFS_ */
diff --git a/drivers/staging/spectra/ffsport.c b/drivers/staging/spectra/ffsport.c
deleted file mode 100644
index 86d556d6cf98..000000000000
--- a/drivers/staging/spectra/ffsport.c
+++ /dev/null
@@ -1,834 +0,0 @@
-/*
- * NAND Flash Controller Device Driver
- * Copyright (c) 2009, Intel Corporation and its suppliers.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- */
-
-#include "ffsport.h"
-#include "flash.h"
-#include <linux/interrupt.h>
-#include <linux/delay.h>
-#include <linux/blkdev.h>
-#include <linux/wait.h>
-#include <linux/mutex.h>
-#include <linux/kthread.h>
-#include <linux/log2.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/async.h>
-
-/**** Helper functions used for Div, Remainder operation on u64 ****/
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     GLOB_Calc_Used_Bits
-* Inputs:       Power of 2 number
-* Outputs:      Number of Used Bits
-*               0, if the argument is 0
-* Description:  Calculate the number of bits used by a given power of 2 number
-*               Number can be up to 32 bit
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-int GLOB_Calc_Used_Bits(u32 n)
-{
-	int tot_bits = 0;
-
-	if (n >= 1 << 16) {
-		n >>= 16;
-		tot_bits += 16;
-	}
-
-	if (n >= 1 << 8) {
-		n >>=  8;
-		tot_bits +=  8;
-	}
-
-	if (n >= 1 << 4) {
-		n >>=  4;
-		tot_bits +=  4;
-	}
-
-	if (n >= 1 << 2) {
-		n >>=  2;
-		tot_bits +=  2;
-	}
-
-	if (n >= 1 << 1)
-		tot_bits +=  1;
-
-	return ((n == 0) ? (0) : tot_bits);
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     GLOB_u64_Div
-* Inputs:       Number of u64
-*               A power of 2 number as Division
-* Outputs:      Quotient of the Divisor operation
-* Description:  It divides the address by divisor by using bit shift operation
-*               (essentially without explicitely using "/").
-*               Divisor is a power of 2 number and Divided is of u64
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-u64 GLOB_u64_Div(u64 addr, u32 divisor)
-{
-	return  (u64)(addr >> GLOB_Calc_Used_Bits(divisor));
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     GLOB_u64_Remainder
-* Inputs:       Number of u64
-*               Divisor Type (1 -PageAddress, 2- BlockAddress)
-* Outputs:      Remainder of the Division operation
-* Description:  It calculates the remainder of a number (of u64) by
-*               divisor(power of 2 number ) by using bit shifting and multiply
-*               operation(essentially without explicitely using "/").
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-u64 GLOB_u64_Remainder(u64 addr, u32 divisor_type)
-{
-	u64 result = 0;
-
-	if (divisor_type == 1) { /* Remainder -- Page */
-		result = (addr >> DeviceInfo.nBitsInPageDataSize);
-		result = result * DeviceInfo.wPageDataSize;
-	} else if (divisor_type == 2) { /* Remainder -- Block */
-		result = (addr >> DeviceInfo.nBitsInBlockDataSize);
-		result = result * DeviceInfo.wBlockDataSize;
-	}
-
-	result = addr - result;
-
-	return result;
-}
-
-#define NUM_DEVICES             1
-#define PARTITIONS              8
-
-#define GLOB_SBD_NAME          "nd"
-#define GLOB_SBD_IRQ_NUM       (29)
-
-#define GLOB_SBD_IOCTL_GC                        (0x7701)
-#define GLOB_SBD_IOCTL_WL                        (0x7702)
-#define GLOB_SBD_IOCTL_FORMAT                    (0x7703)
-#define GLOB_SBD_IOCTL_ERASE_FLASH               (0x7704)
-#define GLOB_SBD_IOCTL_FLUSH_CACHE               (0x7705)
-#define GLOB_SBD_IOCTL_COPY_BLK_TABLE            (0x7706)
-#define GLOB_SBD_IOCTL_COPY_WEAR_LEVELING_TABLE  (0x7707)
-#define GLOB_SBD_IOCTL_GET_NAND_INFO             (0x7708)
-#define GLOB_SBD_IOCTL_WRITE_DATA                (0x7709)
-#define GLOB_SBD_IOCTL_READ_DATA                 (0x770A)
-
-static int reserved_mb = 0;
-module_param(reserved_mb, int, 0);
-MODULE_PARM_DESC(reserved_mb, "Reserved space for OS image, in MiB (default 25 MiB)");
-
-int nand_debug_level;
-module_param(nand_debug_level, int, 0644);
-MODULE_PARM_DESC(nand_debug_level, "debug level value: 1-3");
-
-MODULE_LICENSE("GPL");
-
-struct spectra_nand_dev {
-	struct pci_dev *dev;
-	u64 size;
-	u16 users;
-	spinlock_t qlock;
-	void __iomem *ioaddr;  /* Mapped address */
-	struct request_queue *queue;
-	struct task_struct *thread;
-	struct gendisk *gd;
-	u8 *tmp_buf;
-};
-
-
-static int GLOB_SBD_majornum;
-
-static char *GLOB_version = GLOB_VERSION;
-
-static struct spectra_nand_dev nand_device[NUM_DEVICES];
-
-static struct mutex spectra_lock;
-
-static int res_blks_os = 1;
-
-struct spectra_indentfy_dev_tag IdentifyDeviceData;
-
-static int force_flush_cache(void)
-{
-	nand_dbg_print(NAND_DBG_DEBUG, "%s, Line %d, Function: %s\n",
-		__FILE__, __LINE__, __func__);
-
-	if (ERR == GLOB_FTL_Flush_Cache()) {
-		printk(KERN_ERR "Fail to Flush FTL Cache!\n");
-		return -EFAULT;
-	}
-#if CMD_DMA
-		if (glob_ftl_execute_cmds())
-			return -EIO;
-		else
-			return 0;
-#endif
-	return 0;
-}
-
-struct ioctl_rw_page_info {
-	u8 *data;
-	unsigned int page;
-};
-
-static int ioctl_read_page_data(unsigned long arg)
-{
-	u8 *buf;
-	struct ioctl_rw_page_info info;
-	int result = PASS;
-
-	if (copy_from_user(&info, (void __user *)arg, sizeof(info)))
-		return -EFAULT;
-
-	buf = kmalloc(IdentifyDeviceData.PageDataSize, GFP_ATOMIC);
-	if (!buf) {
-		printk(KERN_ERR "ioctl_read_page_data: "
-		       "failed to allocate memory\n");
-		return -ENOMEM;
-	}
-
-	mutex_lock(&spectra_lock);
-	result = GLOB_FTL_Page_Read(buf,
-		(u64)info.page * IdentifyDeviceData.PageDataSize);
-	mutex_unlock(&spectra_lock);
-
-	if (copy_to_user((void __user *)info.data, buf,
-			   IdentifyDeviceData.PageDataSize)) {
-		printk(KERN_ERR "ioctl_read_page_data: "
-		       "failed to copy user data\n");
-		kfree(buf);
-		return -EFAULT;
-	}
-
-	kfree(buf);
-	return result;
-}
-
-static int ioctl_write_page_data(unsigned long arg)
-{
-	u8 *buf;
-	struct ioctl_rw_page_info info;
-	int result = PASS;
-
-	if (copy_from_user(&info, (void __user *)arg, sizeof(info)))
-		return -EFAULT;
-
-	buf = memdup_user((void __user *)info.data,
-			  IdentifyDeviceData.PageDataSize);
-	if (IS_ERR(buf)) {
-		printk(KERN_ERR "ioctl_write_page_data: "
-		       "failed to copy user data\n");
-		return PTR_ERR(buf);
-	}
-
-	mutex_lock(&spectra_lock);
-	result = GLOB_FTL_Page_Write(buf,
-		(u64)info.page * IdentifyDeviceData.PageDataSize);
-	mutex_unlock(&spectra_lock);
-
-	kfree(buf);
-	return result;
-}
-
-/* Return how many blocks should be reserved for bad block replacement */
-static int get_res_blk_num_bad_blk(void)
-{
-	return IdentifyDeviceData.wDataBlockNum / 10;
-}
-
-/* Return how many blocks should be reserved for OS image */
-static int get_res_blk_num_os(void)
-{
-	u32 res_blks, blk_size;
-
-	blk_size = IdentifyDeviceData.PageDataSize *
-		IdentifyDeviceData.PagesPerBlock;
-
-	res_blks = (reserved_mb * 1024 * 1024) / blk_size;
-
-	if ((res_blks < 1) || (res_blks >= IdentifyDeviceData.wDataBlockNum))
-		res_blks = 1; /* Reserved 1 block for block table */
-
-	return res_blks;
-}
-
-/* Transfer a full request. */
-static int do_transfer(struct spectra_nand_dev *tr, struct request *req)
-{
-	u64 start_addr, addr;
-	u32 logical_start_sect, hd_start_sect;
-	u32 nsect, hd_sects;
-	u32 rsect, tsect = 0;
-	char *buf;
-	u32 ratio = IdentifyDeviceData.PageDataSize >> 9;
-
-	start_addr = (u64)(blk_rq_pos(req)) << 9;
-	/* Add a big enough offset to prevent the OS Image from
-	*  being accessed or damaged by file system */
-	start_addr += IdentifyDeviceData.PageDataSize *
-			IdentifyDeviceData.PagesPerBlock *
-			res_blks_os;
-
-	if (req->cmd_type & REQ_FLUSH) {
-		if (force_flush_cache()) /* Fail to flush cache */
-			return -EIO;
-		else
-			return 0;
-	}
-
-	if (req->cmd_type != REQ_TYPE_FS)
-		return -EIO;
-
-	if (blk_rq_pos(req) + blk_rq_cur_sectors(req) > get_capacity(tr->gd)) {
-		printk(KERN_ERR "Spectra error: request over the NAND "
-			"capacity!sector %d, current_nr_sectors %d, "
-			"while capacity is %d\n",
-			(int)blk_rq_pos(req),
-			blk_rq_cur_sectors(req),
-			(int)get_capacity(tr->gd));
-		return -EIO;
-	}
-
-	logical_start_sect = start_addr >> 9;
-	hd_start_sect = logical_start_sect / ratio;
-	rsect = logical_start_sect - hd_start_sect * ratio;
-
-	addr = (u64)hd_start_sect * ratio * 512;
-	buf = req->buffer;
-	nsect = blk_rq_cur_sectors(req);
-
-	if (rsect)
-		tsect =  (ratio - rsect) < nsect ? (ratio - rsect) : nsect;
-
-	switch (rq_data_dir(req)) {
-	case READ:
-		/* Read the first NAND page */
-		if (rsect) {
-			if (GLOB_FTL_Page_Read(tr->tmp_buf, addr)) {
-				printk(KERN_ERR "Error in %s, Line %d\n",
-					__FILE__, __LINE__);
-				return -EIO;
-			}
-			memcpy(buf, tr->tmp_buf + (rsect << 9), tsect << 9);
-			addr += IdentifyDeviceData.PageDataSize;
-			buf += tsect << 9;
-			nsect -= tsect;
-		}
-
-		/* Read the other NAND pages */
-		for (hd_sects = nsect / ratio; hd_sects > 0; hd_sects--) {
-			if (GLOB_FTL_Page_Read(buf, addr)) {
-				printk(KERN_ERR "Error in %s, Line %d\n",
-					__FILE__, __LINE__);
-				return -EIO;
-			}
-			addr += IdentifyDeviceData.PageDataSize;
-			buf += IdentifyDeviceData.PageDataSize;
-		}
-
-		/* Read the last NAND pages */
-		if (nsect % ratio) {
-			if (GLOB_FTL_Page_Read(tr->tmp_buf, addr)) {
-				printk(KERN_ERR "Error in %s, Line %d\n",
-					__FILE__, __LINE__);
-				return -EIO;
-			}
-			memcpy(buf, tr->tmp_buf, (nsect % ratio) << 9);
-		}
-#if CMD_DMA
-		if (glob_ftl_execute_cmds())
-			return -EIO;
-		else
-			return 0;
-#endif
-		return 0;
-
-	case WRITE:
-		/* Write the first NAND page */
-		if (rsect) {
-			if (GLOB_FTL_Page_Read(tr->tmp_buf, addr)) {
-				printk(KERN_ERR "Error in %s, Line %d\n",
-					__FILE__, __LINE__);
-				return -EIO;
-			}
-			memcpy(tr->tmp_buf + (rsect << 9), buf, tsect << 9);
-			if (GLOB_FTL_Page_Write(tr->tmp_buf, addr)) {
-				printk(KERN_ERR "Error in %s, Line %d\n",
-					__FILE__, __LINE__);
-				return -EIO;
-			}
-			addr += IdentifyDeviceData.PageDataSize;
-			buf += tsect << 9;
-			nsect -= tsect;
-		}
-
-		/* Write the other NAND pages */
-		for (hd_sects = nsect / ratio; hd_sects > 0; hd_sects--) {
-			if (GLOB_FTL_Page_Write(buf, addr)) {
-				printk(KERN_ERR "Error in %s, Line %d\n",
-					__FILE__, __LINE__);
-				return -EIO;
-			}
-			addr += IdentifyDeviceData.PageDataSize;
-			buf += IdentifyDeviceData.PageDataSize;
-		}
-
-		/* Write the last NAND pages */
-		if (nsect % ratio) {
-			if (GLOB_FTL_Page_Read(tr->tmp_buf, addr)) {
-				printk(KERN_ERR "Error in %s, Line %d\n",
-					__FILE__, __LINE__);
-				return -EIO;
-			}
-			memcpy(tr->tmp_buf, buf, (nsect % ratio) << 9);
-			if (GLOB_FTL_Page_Write(tr->tmp_buf, addr)) {
-				printk(KERN_ERR "Error in %s, Line %d\n",
-					__FILE__, __LINE__);
-				return -EIO;
-			}
-		}
-#if CMD_DMA
-		if (glob_ftl_execute_cmds())
-			return -EIO;
-		else
-			return 0;
-#endif
-		return 0;
-
-	default:
-		printk(KERN_NOTICE "Unknown request %u\n", rq_data_dir(req));
-		return -EIO;
-	}
-}
-
-/* This function is copied from drivers/mtd/mtd_blkdevs.c */
-static int spectra_trans_thread(void *arg)
-{
-	struct spectra_nand_dev *tr = arg;
-	struct request_queue *rq = tr->queue;
-	struct request *req = NULL;
-
-	/* we might get involved when memory gets low, so use PF_MEMALLOC */
-	current->flags |= PF_MEMALLOC;
-
-	spin_lock_irq(rq->queue_lock);
-	while (!kthread_should_stop()) {
-		int res;
-
-		if (!req) {
-			req = blk_fetch_request(rq);
-			if (!req) {
-				set_current_state(TASK_INTERRUPTIBLE);
-				spin_unlock_irq(rq->queue_lock);
-				schedule();
-				spin_lock_irq(rq->queue_lock);
-				continue;
-			}
-		}
-
-		spin_unlock_irq(rq->queue_lock);
-
-		mutex_lock(&spectra_lock);
-		res = do_transfer(tr, req);
-		mutex_unlock(&spectra_lock);
-
-		spin_lock_irq(rq->queue_lock);
-
-		if (!__blk_end_request_cur(req, res))
-			req = NULL;
-	}
-
-	if (req)
-		__blk_end_request_all(req, -EIO);
-
-	spin_unlock_irq(rq->queue_lock);
-
-	return 0;
-}
-
-
-/* Request function that "handles clustering". */
-static void GLOB_SBD_request(struct request_queue *rq)
-{
-	struct spectra_nand_dev *pdev = rq->queuedata;
-	wake_up_process(pdev->thread);
-}
-
-static int GLOB_SBD_open(struct block_device *bdev, fmode_t mode)
-
-{
-	nand_dbg_print(NAND_DBG_WARN, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-	return 0;
-}
-
-static int GLOB_SBD_release(struct gendisk *disk, fmode_t mode)
-{
-	int ret;
-
-	nand_dbg_print(NAND_DBG_WARN, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	mutex_lock(&spectra_lock);
-	ret = force_flush_cache();
-	mutex_unlock(&spectra_lock);
-
-	return 0;
-}
-
-static int GLOB_SBD_getgeo(struct block_device *bdev, struct hd_geometry *geo)
-{
-	geo->heads = 4;
-	geo->sectors = 16;
-	geo->cylinders = get_capacity(bdev->bd_disk) / (4 * 16);
-
-	nand_dbg_print(NAND_DBG_DEBUG,
-		"heads: %d, sectors: %d, cylinders: %d\n",
-		geo->heads, geo->sectors, geo->cylinders);
-
-	return 0;
-}
-
-int GLOB_SBD_ioctl(struct block_device *bdev, fmode_t mode,
-		unsigned int cmd, unsigned long arg)
-{
-	int ret;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	switch (cmd) {
-	case GLOB_SBD_IOCTL_GC:
-		nand_dbg_print(NAND_DBG_DEBUG,
-			       "Spectra IOCTL: Garbage Collection "
-			       "being performed\n");
-		if (PASS != GLOB_FTL_Garbage_Collection())
-			return -EFAULT;
-		return 0;
-
-	case GLOB_SBD_IOCTL_WL:
-		nand_dbg_print(NAND_DBG_DEBUG,
-			       "Spectra IOCTL: Static Wear Leveling "
-			       "being performed\n");
-		if (PASS != GLOB_FTL_Wear_Leveling())
-			return -EFAULT;
-		return 0;
-
-	case GLOB_SBD_IOCTL_FORMAT:
-		nand_dbg_print(NAND_DBG_DEBUG, "Spectra IOCTL: Flash format "
-			       "being performed\n");
-		if (PASS != GLOB_FTL_Flash_Format())
-			return -EFAULT;
-		return 0;
-
-	case GLOB_SBD_IOCTL_FLUSH_CACHE:
-		nand_dbg_print(NAND_DBG_DEBUG, "Spectra IOCTL: Cache flush "
-			       "being performed\n");
-		mutex_lock(&spectra_lock);
-		ret = force_flush_cache();
-		mutex_unlock(&spectra_lock);
-		return ret;
-
-	case GLOB_SBD_IOCTL_COPY_BLK_TABLE:
-		nand_dbg_print(NAND_DBG_DEBUG, "Spectra IOCTL: "
-			       "Copy block table\n");
-		if (copy_to_user((void __user *)arg,
-			get_blk_table_start_addr(),
-			get_blk_table_len()))
-			return -EFAULT;
-		return 0;
-
-	case GLOB_SBD_IOCTL_COPY_WEAR_LEVELING_TABLE:
-		nand_dbg_print(NAND_DBG_DEBUG, "Spectra IOCTL: "
-			       "Copy wear leveling table\n");
-		if (copy_to_user((void __user *)arg,
-			get_wear_leveling_table_start_addr(),
-			get_wear_leveling_table_len()))
-			return -EFAULT;
-		return 0;
-
-	case GLOB_SBD_IOCTL_GET_NAND_INFO:
-		nand_dbg_print(NAND_DBG_DEBUG, "Spectra IOCTL: "
-			       "Get NAND info\n");
-		if (copy_to_user((void __user *)arg, &IdentifyDeviceData,
-			sizeof(IdentifyDeviceData)))
-			return -EFAULT;
-		return 0;
-
-	case GLOB_SBD_IOCTL_WRITE_DATA:
-		nand_dbg_print(NAND_DBG_DEBUG, "Spectra IOCTL: "
-			       "Write one page data\n");
-		return ioctl_write_page_data(arg);
-
-	case GLOB_SBD_IOCTL_READ_DATA:
-		nand_dbg_print(NAND_DBG_DEBUG, "Spectra IOCTL: "
-			       "Read one page data\n");
-		return ioctl_read_page_data(arg);
-	}
-
-	return -ENOTTY;
-}
-
-static DEFINE_MUTEX(ffsport_mutex);
-
-int GLOB_SBD_unlocked_ioctl(struct block_device *bdev, fmode_t mode,
-		unsigned int cmd, unsigned long arg)
-{
-	int ret;
-
-	mutex_lock(&ffsport_mutex);
-	ret = GLOB_SBD_ioctl(bdev, mode, cmd, arg);
-	mutex_unlock(&ffsport_mutex);
-
-	return ret;
-}
-
-static struct block_device_operations GLOB_SBD_ops = {
-	.owner = THIS_MODULE,
-	.open = GLOB_SBD_open,
-	.release = GLOB_SBD_release,
-	.ioctl = GLOB_SBD_unlocked_ioctl,
-	.getgeo = GLOB_SBD_getgeo,
-};
-
-static int SBD_setup_device(struct spectra_nand_dev *dev, int which)
-{
-	int res_blks;
-	u32 sects;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	memset(dev, 0, sizeof(struct spectra_nand_dev));
-
-	nand_dbg_print(NAND_DBG_WARN, "Reserved %d blocks "
-		"for OS image, %d blocks for bad block replacement.\n",
-		get_res_blk_num_os(),
-		get_res_blk_num_bad_blk());
-
-	res_blks = get_res_blk_num_bad_blk() + get_res_blk_num_os();
-
-	dev->size = (u64)IdentifyDeviceData.PageDataSize *
-		IdentifyDeviceData.PagesPerBlock *
-		(IdentifyDeviceData.wDataBlockNum - res_blks);
-
-	res_blks_os = get_res_blk_num_os();
-
-	spin_lock_init(&dev->qlock);
-
-	dev->tmp_buf = kmalloc(IdentifyDeviceData.PageDataSize, GFP_ATOMIC);
-	if (!dev->tmp_buf) {
-		printk(KERN_ERR "Failed to kmalloc memory in %s Line %d, exit.\n",
-			__FILE__, __LINE__);
-		goto out_vfree;
-	}
-
-	dev->queue = blk_init_queue(GLOB_SBD_request, &dev->qlock);
-	if (dev->queue == NULL) {
-		printk(KERN_ERR
-		       "Spectra: Request queue could not be initialized."
-			" Aborting\n ");
-		goto out_vfree;
-	}
-	dev->queue->queuedata = dev;
-
-	/* As Linux block layer doesn't support >4KB hardware sector,  */
-	/* Here we force report 512 byte hardware sector size to Kernel */
-	blk_queue_logical_block_size(dev->queue, 512);
-
-	blk_queue_flush(dev->queue, REQ_FLUSH);
-
-	dev->thread = kthread_run(spectra_trans_thread, dev, "nand_thd");
-	if (IS_ERR(dev->thread)) {
-		blk_cleanup_queue(dev->queue);
-		unregister_blkdev(GLOB_SBD_majornum, GLOB_SBD_NAME);
-		return PTR_ERR(dev->thread);
-	}
-
-	dev->gd = alloc_disk(PARTITIONS);
-	if (!dev->gd) {
-		printk(KERN_ERR
-		       "Spectra: Could not allocate disk. Aborting \n ");
-		goto out_vfree;
-	}
-	dev->gd->major = GLOB_SBD_majornum;
-	dev->gd->first_minor = which * PARTITIONS;
-	dev->gd->fops = &GLOB_SBD_ops;
-	dev->gd->queue = dev->queue;
-	dev->gd->private_data = dev;
-	snprintf(dev->gd->disk_name, 32, "%s%c", GLOB_SBD_NAME, which + 'a');
-
-	sects = dev->size >> 9;
-	nand_dbg_print(NAND_DBG_WARN, "Capacity sects: %d\n", sects);
-	set_capacity(dev->gd, sects);
-
-	add_disk(dev->gd);
-
-	return 0;
-out_vfree:
-	return -ENOMEM;
-}
-
-/*
-static ssize_t show_nand_block_num(struct device *dev,
-	struct device_attribute *attr, char *buf)
-{
-	return snprintf(buf, PAGE_SIZE, "%d\n",
-		(int)IdentifyDeviceData.wDataBlockNum);
-}
-
-static ssize_t show_nand_pages_per_block(struct device *dev,
-	struct device_attribute *attr, char *buf)
-{
-	return snprintf(buf, PAGE_SIZE, "%d\n",
-		(int)IdentifyDeviceData.PagesPerBlock);
-}
-
-static ssize_t show_nand_page_size(struct device *dev,
-	struct device_attribute *attr, char *buf)
-{
-	return snprintf(buf, PAGE_SIZE, "%d\n",
-		(int)IdentifyDeviceData.PageDataSize);
-}
-
-static DEVICE_ATTR(nand_block_num, 0444, show_nand_block_num, NULL);
-static DEVICE_ATTR(nand_pages_per_block, 0444, show_nand_pages_per_block, NULL);
-static DEVICE_ATTR(nand_page_size, 0444, show_nand_page_size, NULL);
-
-static void create_sysfs_entry(struct device *dev)
-{
-	if (device_create_file(dev, &dev_attr_nand_block_num))
-		printk(KERN_ERR "Spectra: "
-			"failed to create sysfs entry nand_block_num.\n");
-	if (device_create_file(dev, &dev_attr_nand_pages_per_block))
-		printk(KERN_ERR "Spectra: "
-		"failed to create sysfs entry nand_pages_per_block.\n");
-	if (device_create_file(dev, &dev_attr_nand_page_size))
-		printk(KERN_ERR "Spectra: "
-		"failed to create sysfs entry nand_page_size.\n");
-}
-*/
-
-static void register_spectra_ftl_async(void *unused, async_cookie_t cookie)
-{
-	int i;
-
-	/* create_sysfs_entry(&dev->dev); */
-
-	if (PASS != GLOB_FTL_IdentifyDevice(&IdentifyDeviceData)) {
-		printk(KERN_ERR "Spectra: Unable to Read Flash Device. "
-		       "Aborting\n");
-		return;
-	} else {
-		nand_dbg_print(NAND_DBG_WARN, "In GLOB_SBD_init: "
-			       "Num blocks=%d, pagesperblock=%d, "
-			       "pagedatasize=%d, ECCBytesPerSector=%d\n",
-		       (int)IdentifyDeviceData.NumBlocks,
-		       (int)IdentifyDeviceData.PagesPerBlock,
-		       (int)IdentifyDeviceData.PageDataSize,
-		       (int)IdentifyDeviceData.wECCBytesPerSector);
-	}
-
-	printk(KERN_ALERT "Spectra: searching block table, please wait ...\n");
-	if (GLOB_FTL_Init() != PASS) {
-		printk(KERN_ERR "Spectra: Unable to Initialize FTL Layer. "
-		       "Aborting\n");
-		goto out_ftl_flash_register;
-	}
-	printk(KERN_ALERT "Spectra: block table has been found.\n");
-
-	GLOB_SBD_majornum = register_blkdev(0, GLOB_SBD_NAME);
-	if (GLOB_SBD_majornum <= 0) {
-		printk(KERN_ERR "Unable to get the major %d for Spectra",
-		       GLOB_SBD_majornum);
-		goto out_ftl_flash_register;
-	}
-
-	for (i = 0; i < NUM_DEVICES; i++)
-		if (SBD_setup_device(&nand_device[i], i) == -ENOMEM)
-			goto out_blk_register;
-
-	nand_dbg_print(NAND_DBG_DEBUG,
-		       "Spectra: module loaded with major number %d\n",
-		       GLOB_SBD_majornum);
-
-	return;
-
-out_blk_register:
-	unregister_blkdev(GLOB_SBD_majornum, GLOB_SBD_NAME);
-out_ftl_flash_register:
-	GLOB_FTL_Cache_Release();
-	printk(KERN_ERR "Spectra: Module load failed.\n");
-}
-
-int register_spectra_ftl()
-{
-	async_schedule(register_spectra_ftl_async, NULL);
-	return 0;
-}
-EXPORT_SYMBOL_GPL(register_spectra_ftl);
-
-static int GLOB_SBD_init(void)
-{
-	/* Set debug output level (0~3) here. 3 is most verbose */
-	printk(KERN_ALERT "Spectra: %s\n", GLOB_version);
-
-	mutex_init(&spectra_lock);
-
-	if (PASS != GLOB_FTL_Flash_Init()) {
-		printk(KERN_ERR "Spectra: Unable to Initialize Flash Device. "
-		       "Aborting\n");
-		return -ENODEV;
-	}
-	return 0;
-}
-
-static void __exit GLOB_SBD_exit(void)
-{
-	int i;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	for (i = 0; i < NUM_DEVICES; i++) {
-		struct spectra_nand_dev *dev = &nand_device[i];
-		if (dev->gd) {
-			del_gendisk(dev->gd);
-			put_disk(dev->gd);
-		}
-		if (dev->queue)
-			blk_cleanup_queue(dev->queue);
-		kfree(dev->tmp_buf);
-	}
-
-	unregister_blkdev(GLOB_SBD_majornum, GLOB_SBD_NAME);
-
-	mutex_lock(&spectra_lock);
-	force_flush_cache();
-	mutex_unlock(&spectra_lock);
-
-	GLOB_FTL_Cache_Release();
-
-	GLOB_FTL_Flash_Release();
-
-	nand_dbg_print(NAND_DBG_DEBUG,
-		       "Spectra FTL module (major number %d) unloaded.\n",
-		       GLOB_SBD_majornum);
-}
-
-module_init(GLOB_SBD_init);
-module_exit(GLOB_SBD_exit);
diff --git a/drivers/staging/spectra/ffsport.h b/drivers/staging/spectra/ffsport.h
deleted file mode 100644
index 85c0750612f6..000000000000
--- a/drivers/staging/spectra/ffsport.h
+++ /dev/null
@@ -1,85 +0,0 @@
-/*
- * NAND Flash Controller Device Driver
- * Copyright (c) 2009, Intel Corporation and its suppliers.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- */
-
-#ifndef _FFSPORT_
-#define _FFSPORT_
-
-#include "ffsdefs.h"
-
-#if defined __GNUC__
-#define PACKED
-#define PACKED_GNU __attribute__ ((packed))
-#define UNALIGNED
-#endif
-
-#include <linux/semaphore.h>
-#include <linux/string.h>	/* for strcpy(), stricmp(), etc */
-#include <linux/mm.h>		/* for kmalloc(), kfree() */
-#include <linux/vmalloc.h>
-#include <linux/module.h>
-#include <linux/moduleparam.h>
-#include <linux/init.h>
-
-#include <linux/kernel.h>	/* printk() */
-#include <linux/fs.h>		/* everything... */
-#include <linux/errno.h>	/* error codes */
-#include <linux/types.h>	/* size_t */
-#include <linux/genhd.h>
-#include <linux/blkdev.h>
-#include <linux/hdreg.h>
-#include <linux/pci.h>
-#include "flash.h"
-
-#define VERBOSE    1
-
-#define NAND_DBG_WARN  1
-#define NAND_DBG_DEBUG 2
-#define NAND_DBG_TRACE 3
-
-extern int nand_debug_level;
-
-#ifdef VERBOSE
-#define nand_dbg_print(level, args...)			\
-	do {						\
-		if (level <= nand_debug_level)		\
-			printk(KERN_ALERT args);	\
-	} while (0)
-#else
-#define nand_dbg_print(level, args...)
-#endif
-
-#ifdef SUPPORT_BIG_ENDIAN
-#define INVERTUINT16(w)   ((u16)(((u16)(w)) << 8) | \
-			   (u16)((u16)(w) >> 8))
-
-#define INVERTUINT32(dw)  (((u32)(dw) << 24) | \
-			   (((u32)(dw) << 8) & 0x00ff0000) | \
-			   (((u32)(dw) >> 8) & 0x0000ff00) | \
-			   ((u32)(dw) >> 24))
-#else
-#define INVERTUINT16(w)   w
-#define INVERTUINT32(dw)  dw
-#endif
-
-extern int GLOB_Calc_Used_Bits(u32 n);
-extern u64 GLOB_u64_Div(u64 addr, u32 divisor);
-extern u64 GLOB_u64_Remainder(u64 addr, u32 divisor_type);
-extern int register_spectra_ftl(void);
-
-#endif /* _FFSPORT_ */
diff --git a/drivers/staging/spectra/flash.c b/drivers/staging/spectra/flash.c
deleted file mode 100644
index aead358e5c2a..000000000000
--- a/drivers/staging/spectra/flash.c
+++ /dev/null
@@ -1,4305 +0,0 @@
-/*
- * NAND Flash Controller Device Driver
- * Copyright (c) 2009, Intel Corporation and its suppliers.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- */
-
-#include <linux/fs.h>
-#include <linux/slab.h>
-
-#include "flash.h"
-#include "ffsdefs.h"
-#include "lld.h"
-#include "lld_nand.h"
-#if CMD_DMA
-#include "lld_cdma.h"
-#endif
-
-#define BLK_FROM_ADDR(addr)  ((u32)(addr >> DeviceInfo.nBitsInBlockDataSize))
-#define PAGE_FROM_ADDR(addr, Block)  ((u16)((addr - (u64)Block * \
-	DeviceInfo.wBlockDataSize) >> DeviceInfo.nBitsInPageDataSize))
-
-#define IS_SPARE_BLOCK(blk)     (BAD_BLOCK != (pbt[blk] &\
-	BAD_BLOCK) && SPARE_BLOCK == (pbt[blk] & SPARE_BLOCK))
-
-#define IS_DATA_BLOCK(blk)      (0 == (pbt[blk] & BAD_BLOCK))
-
-#define IS_DISCARDED_BLOCK(blk) (BAD_BLOCK != (pbt[blk] &\
-	BAD_BLOCK) && DISCARD_BLOCK == (pbt[blk] & DISCARD_BLOCK))
-
-#define IS_BAD_BLOCK(blk)       (BAD_BLOCK == (pbt[blk] & BAD_BLOCK))
-
-#if DEBUG_BNDRY
-void debug_boundary_lineno_error(int chnl, int limit, int no,
-				int lineno, char *filename)
-{
-	if (chnl >= limit)
-		printk(KERN_ERR "Boundary Check Fail value %d >= limit %d, "
-		"at  %s:%d. Other info:%d. Aborting...\n",
-		chnl, limit, filename, lineno, no);
-}
-/* static int globalmemsize; */
-#endif
-
-static u16 FTL_Cache_If_Hit(u64 dwPageAddr);
-static int FTL_Cache_Read(u64 dwPageAddr);
-static void FTL_Cache_Read_Page(u8 *pData, u64 dwPageAddr,
-				u16 cache_blk);
-static void FTL_Cache_Write_Page(u8 *pData, u64 dwPageAddr,
-				 u8 cache_blk, u16 flag);
-static int FTL_Cache_Write(void);
-static void FTL_Calculate_LRU(void);
-static u32 FTL_Get_Block_Index(u32 wBlockNum);
-
-static int FTL_Search_Block_Table_IN_Block(u32 BT_Block,
-					   u8 BT_Tag, u16 *Page);
-static int FTL_Read_Block_Table(void);
-static int FTL_Write_Block_Table(int wForce);
-static int FTL_Write_Block_Table_Data(void);
-static int FTL_Check_Block_Table(int wOldTable);
-static int FTL_Static_Wear_Leveling(void);
-static u32 FTL_Replace_Block_Table(void);
-static int FTL_Write_IN_Progress_Block_Table_Page(void);
-
-static u32 FTL_Get_Page_Num(u64 length);
-static u64 FTL_Get_Physical_Block_Addr(u64 blk_addr);
-
-static u32 FTL_Replace_OneBlock(u32 wBlockNum,
-				      u32 wReplaceNum);
-static u32 FTL_Replace_LWBlock(u32 wBlockNum,
-				     int *pGarbageCollect);
-static u32 FTL_Replace_MWBlock(void);
-static int FTL_Replace_Block(u64 blk_addr);
-static int FTL_Adjust_Relative_Erase_Count(u32 Index_of_MAX);
-
-struct device_info_tag DeviceInfo;
-struct flash_cache_tag Cache;
-static struct spectra_l2_cache_info cache_l2;
-
-static u8 *cache_l2_page_buf;
-static u8 *cache_l2_blk_buf;
-
-u8 *g_pBlockTable;
-u8 *g_pWearCounter;
-u16 *g_pReadCounter;
-u32 *g_pBTBlocks;
-static u16 g_wBlockTableOffset;
-static u32 g_wBlockTableIndex;
-static u8 g_cBlockTableStatus;
-
-static u8 *g_pTempBuf;
-static u8 *flag_check_blk_table;
-static u8 *tmp_buf_search_bt_in_block;
-static u8 *spare_buf_search_bt_in_block;
-static u8 *spare_buf_bt_search_bt_in_block;
-static u8 *tmp_buf1_read_blk_table;
-static u8 *tmp_buf2_read_blk_table;
-static u8 *flags_static_wear_leveling;
-static u8 *tmp_buf_write_blk_table_data;
-static u8 *tmp_buf_read_disturbance;
-
-u8 *buf_read_page_main_spare;
-u8 *buf_write_page_main_spare;
-u8 *buf_read_page_spare;
-u8 *buf_get_bad_block;
-
-#if (RESTORE_CACHE_ON_CDMA_CHAIN_FAILURE && CMD_DMA)
-struct flash_cache_delta_list_tag int_cache[MAX_CHANS + MAX_DESCS];
-struct flash_cache_tag cache_start_copy;
-#endif
-
-int g_wNumFreeBlocks;
-u8 g_SBDCmdIndex;
-
-static u8 *g_pIPF;
-static u8 bt_flag = FIRST_BT_ID;
-static u8 bt_block_changed;
-
-static u16 cache_block_to_write;
-static u8 last_erased = FIRST_BT_ID;
-
-static u8 GC_Called;
-static u8 BT_GC_Called;
-
-#if CMD_DMA
-#define COPY_BACK_BUF_NUM 10
-
-static u8 ftl_cmd_cnt;  /* Init value is 0 */
-u8 *g_pBTDelta;
-u8 *g_pBTDelta_Free;
-u8 *g_pBTStartingCopy;
-u8 *g_pWearCounterCopy;
-u16 *g_pReadCounterCopy;
-u8 *g_pBlockTableCopies;
-u8 *g_pNextBlockTable;
-static u8 *cp_back_buf_copies[COPY_BACK_BUF_NUM];
-static int cp_back_buf_idx;
-
-static u8 *g_temp_buf;
-
-#pragma pack(push, 1)
-#pragma pack(1)
-struct BTableChangesDelta {
-	u8 ftl_cmd_cnt;
-	u8 ValidFields;
-	u16 g_wBlockTableOffset;
-	u32 g_wBlockTableIndex;
-	u32 BT_Index;
-	u32 BT_Entry_Value;
-	u32 WC_Index;
-	u8 WC_Entry_Value;
-	u32 RC_Index;
-	u16 RC_Entry_Value;
-};
-
-#pragma pack(pop)
-
-struct BTableChangesDelta *p_BTableChangesDelta;
-#endif
-
-
-#define MARK_BLOCK_AS_BAD(blocknode)      (blocknode |= BAD_BLOCK)
-#define MARK_BLK_AS_DISCARD(blk)  (blk = (blk & ~SPARE_BLOCK) | DISCARD_BLOCK)
-
-#define FTL_Get_LBAPBA_Table_Mem_Size_Bytes() (DeviceInfo.wDataBlockNum *\
-						sizeof(u32))
-#define FTL_Get_WearCounter_Table_Mem_Size_Bytes() (DeviceInfo.wDataBlockNum *\
-						sizeof(u8))
-#define FTL_Get_ReadCounter_Table_Mem_Size_Bytes() (DeviceInfo.wDataBlockNum *\
-						sizeof(u16))
-#if SUPPORT_LARGE_BLOCKNUM
-#define FTL_Get_LBAPBA_Table_Flash_Size_Bytes() (DeviceInfo.wDataBlockNum *\
-						sizeof(u8) * 3)
-#else
-#define FTL_Get_LBAPBA_Table_Flash_Size_Bytes() (DeviceInfo.wDataBlockNum *\
-						sizeof(u16))
-#endif
-#define FTL_Get_WearCounter_Table_Flash_Size_Bytes \
-	FTL_Get_WearCounter_Table_Mem_Size_Bytes
-#define FTL_Get_ReadCounter_Table_Flash_Size_Bytes \
-	FTL_Get_ReadCounter_Table_Mem_Size_Bytes
-
-static u32 FTL_Get_Block_Table_Flash_Size_Bytes(void)
-{
-	u32 byte_num;
-
-	if (DeviceInfo.MLCDevice) {
-		byte_num = FTL_Get_LBAPBA_Table_Flash_Size_Bytes() +
-			DeviceInfo.wDataBlockNum * sizeof(u8) +
-			DeviceInfo.wDataBlockNum * sizeof(u16);
-	} else {
-		byte_num = FTL_Get_LBAPBA_Table_Flash_Size_Bytes() +
-			DeviceInfo.wDataBlockNum * sizeof(u8);
-	}
-
-	byte_num += 4 * sizeof(u8);
-
-	return byte_num;
-}
-
-static u16  FTL_Get_Block_Table_Flash_Size_Pages(void)
-{
-	return (u16)FTL_Get_Page_Num(FTL_Get_Block_Table_Flash_Size_Bytes());
-}
-
-static int FTL_Copy_Block_Table_To_Flash(u8 *flashBuf, u32 sizeToTx,
-					u32 sizeTxed)
-{
-	u32 wBytesCopied, blk_tbl_size, wBytes;
-	u32 *pbt = (u32 *)g_pBlockTable;
-
-	blk_tbl_size = FTL_Get_LBAPBA_Table_Flash_Size_Bytes();
-	for (wBytes = 0;
-	(wBytes < sizeToTx) && ((wBytes + sizeTxed) < blk_tbl_size);
-	wBytes++) {
-#if SUPPORT_LARGE_BLOCKNUM
-		flashBuf[wBytes] = (u8)(pbt[(wBytes + sizeTxed) / 3]
-		>> (((wBytes + sizeTxed) % 3) ?
-		((((wBytes + sizeTxed) % 3) == 2) ? 0 : 8) : 16)) & 0xFF;
-#else
-		flashBuf[wBytes] = (u8)(pbt[(wBytes + sizeTxed) / 2]
-		>> (((wBytes + sizeTxed) % 2) ? 0 : 8)) & 0xFF;
-#endif
-	}
-
-	sizeTxed = (sizeTxed > blk_tbl_size) ? (sizeTxed - blk_tbl_size) : 0;
-	blk_tbl_size = FTL_Get_WearCounter_Table_Flash_Size_Bytes();
-	wBytesCopied = wBytes;
-	wBytes = ((blk_tbl_size - sizeTxed) > (sizeToTx - wBytesCopied)) ?
-		(sizeToTx - wBytesCopied) : (blk_tbl_size - sizeTxed);
-	memcpy(flashBuf + wBytesCopied, g_pWearCounter + sizeTxed, wBytes);
-
-	sizeTxed = (sizeTxed > blk_tbl_size) ? (sizeTxed - blk_tbl_size) : 0;
-
-	if (DeviceInfo.MLCDevice) {
-		blk_tbl_size = FTL_Get_ReadCounter_Table_Flash_Size_Bytes();
-		wBytesCopied += wBytes;
-		for (wBytes = 0; ((wBytes + wBytesCopied) < sizeToTx) &&
-			((wBytes + sizeTxed) < blk_tbl_size); wBytes++)
-			flashBuf[wBytes + wBytesCopied] =
-			(g_pReadCounter[(wBytes + sizeTxed) / 2] >>
-			(((wBytes + sizeTxed) % 2) ? 0 : 8)) & 0xFF;
-	}
-
-	return wBytesCopied + wBytes;
-}
-
-static int FTL_Copy_Block_Table_From_Flash(u8 *flashBuf,
-				u32 sizeToTx, u32 sizeTxed)
-{
-	u32 wBytesCopied, blk_tbl_size, wBytes;
-	u32 *pbt = (u32 *)g_pBlockTable;
-
-	blk_tbl_size = FTL_Get_LBAPBA_Table_Flash_Size_Bytes();
-	for (wBytes = 0; (wBytes < sizeToTx) &&
-		((wBytes + sizeTxed) < blk_tbl_size); wBytes++) {
-#if SUPPORT_LARGE_BLOCKNUM
-		if (!((wBytes + sizeTxed) % 3))
-			pbt[(wBytes + sizeTxed) / 3] = 0;
-		pbt[(wBytes + sizeTxed) / 3] |=
-			(flashBuf[wBytes] << (((wBytes + sizeTxed) % 3) ?
-			((((wBytes + sizeTxed) % 3) == 2) ? 0 : 8) : 16));
-#else
-		if (!((wBytes + sizeTxed) % 2))
-			pbt[(wBytes + sizeTxed) / 2] = 0;
-		pbt[(wBytes + sizeTxed) / 2] |=
-			(flashBuf[wBytes] << (((wBytes + sizeTxed) % 2) ?
-			0 : 8));
-#endif
-	}
-
-	sizeTxed = (sizeTxed > blk_tbl_size) ? (sizeTxed - blk_tbl_size) : 0;
-	blk_tbl_size = FTL_Get_WearCounter_Table_Flash_Size_Bytes();
-	wBytesCopied = wBytes;
-	wBytes = ((blk_tbl_size - sizeTxed) > (sizeToTx - wBytesCopied)) ?
-		(sizeToTx - wBytesCopied) : (blk_tbl_size - sizeTxed);
-	memcpy(g_pWearCounter + sizeTxed, flashBuf + wBytesCopied, wBytes);
-	sizeTxed = (sizeTxed > blk_tbl_size) ? (sizeTxed - blk_tbl_size) : 0;
-
-	if (DeviceInfo.MLCDevice) {
-		wBytesCopied += wBytes;
-		blk_tbl_size = FTL_Get_ReadCounter_Table_Flash_Size_Bytes();
-		for (wBytes = 0; ((wBytes + wBytesCopied) < sizeToTx) &&
-			((wBytes + sizeTxed) < blk_tbl_size); wBytes++) {
-			if (((wBytes + sizeTxed) % 2))
-				g_pReadCounter[(wBytes + sizeTxed) / 2] = 0;
-			g_pReadCounter[(wBytes + sizeTxed) / 2] |=
-				(flashBuf[wBytes] <<
-				(((wBytes + sizeTxed) % 2) ? 0 : 8));
-		}
-	}
-
-	return wBytesCopied+wBytes;
-}
-
-static int FTL_Insert_Block_Table_Signature(u8 *buf, u8 tag)
-{
-	int i;
-
-	for (i = 0; i < BTSIG_BYTES; i++)
-		buf[BTSIG_OFFSET + i] =
-		((tag + (i * BTSIG_DELTA) - FIRST_BT_ID) %
-		(1 + LAST_BT_ID-FIRST_BT_ID)) + FIRST_BT_ID;
-
-	return PASS;
-}
-
-static int FTL_Extract_Block_Table_Tag(u8 *buf, u8 **tagarray)
-{
-	static u8 tag[BTSIG_BYTES >> 1];
-	int i, j, k, tagi, tagtemp, status;
-
-	*tagarray = (u8 *)tag;
-	tagi = 0;
-
-	for (i = 0; i < (BTSIG_BYTES - 1); i++) {
-		for (j = i + 1; (j < BTSIG_BYTES) &&
-			(tagi < (BTSIG_BYTES >> 1)); j++) {
-			tagtemp = buf[BTSIG_OFFSET + j] -
-				buf[BTSIG_OFFSET + i];
-			if (tagtemp && !(tagtemp % BTSIG_DELTA)) {
-				tagtemp = (buf[BTSIG_OFFSET + i] +
-					(1 + LAST_BT_ID - FIRST_BT_ID) -
-					(i * BTSIG_DELTA)) %
-					(1 + LAST_BT_ID - FIRST_BT_ID);
-				status = FAIL;
-				for (k = 0; k < tagi; k++) {
-					if (tagtemp == tag[k])
-						status = PASS;
-				}
-
-				if (status == FAIL) {
-					tag[tagi++] = tagtemp;
-					i = (j == (i + 1)) ? i + 1 : i;
-					j = (j == (i + 1)) ? i + 1 : i;
-				}
-			}
-		}
-	}
-
-	return tagi;
-}
-
-
-static int FTL_Execute_SPL_Recovery(void)
-{
-	u32 j, block, blks;
-	u32 *pbt = (u32 *)g_pBlockTable;
-	int ret;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-				__FILE__, __LINE__, __func__);
-
-	blks = DeviceInfo.wSpectraEndBlock - DeviceInfo.wSpectraStartBlock;
-	for (j = 0; j <= blks; j++) {
-		block = (pbt[j]);
-		if (((block & BAD_BLOCK) != BAD_BLOCK) &&
-			((block & SPARE_BLOCK) == SPARE_BLOCK)) {
-			ret =  GLOB_LLD_Erase_Block(block & ~BAD_BLOCK);
-			if (FAIL == ret) {
-				nand_dbg_print(NAND_DBG_WARN,
-					"NAND Program fail in %s, Line %d, "
-					"Function: %s, new Bad Block %d "
-					"generated!\n",
-					__FILE__, __LINE__, __func__,
-					(int)(block & ~BAD_BLOCK));
-				MARK_BLOCK_AS_BAD(pbt[j]);
-			}
-		}
-	}
-
-	return PASS;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     GLOB_FTL_IdentifyDevice
-* Inputs:       pointer to identify data structure
-* Outputs:      PASS / FAIL
-* Description:  the identify data structure is filled in with
-*                   information for the block driver.
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-int GLOB_FTL_IdentifyDevice(struct spectra_indentfy_dev_tag *dev_data)
-{
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-				__FILE__, __LINE__, __func__);
-
-	dev_data->NumBlocks = DeviceInfo.wTotalBlocks;
-	dev_data->PagesPerBlock = DeviceInfo.wPagesPerBlock;
-	dev_data->PageDataSize = DeviceInfo.wPageDataSize;
-	dev_data->wECCBytesPerSector = DeviceInfo.wECCBytesPerSector;
-	dev_data->wDataBlockNum = DeviceInfo.wDataBlockNum;
-
-	return PASS;
-}
-
-/* ..... */
-static int allocate_memory(void)
-{
-	u32 block_table_size, page_size, block_size, mem_size;
-	u32 total_bytes = 0;
-	int i;
-#if CMD_DMA
-	int j;
-#endif
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		__FILE__, __LINE__, __func__);
-
-	page_size = DeviceInfo.wPageSize;
-	block_size = DeviceInfo.wPagesPerBlock * DeviceInfo.wPageDataSize;
-
-	block_table_size = DeviceInfo.wDataBlockNum *
-		(sizeof(u32) + sizeof(u8) + sizeof(u16));
-	block_table_size += (DeviceInfo.wPageDataSize -
-		(block_table_size % DeviceInfo.wPageDataSize)) %
-		DeviceInfo.wPageDataSize;
-
-	/* Malloc memory for block tables */
-	g_pBlockTable = kzalloc(block_table_size, GFP_ATOMIC);
-	if (!g_pBlockTable)
-		goto block_table_fail;
-	total_bytes += block_table_size;
-
-	g_pWearCounter = (u8 *)(g_pBlockTable +
-		DeviceInfo.wDataBlockNum * sizeof(u32));
-
-	if (DeviceInfo.MLCDevice)
-		g_pReadCounter = (u16 *)(g_pBlockTable +
-			DeviceInfo.wDataBlockNum *
-			(sizeof(u32) + sizeof(u8)));
-
-	/* Malloc memory and init for cache items */
-	for (i = 0; i < CACHE_ITEM_NUM; i++) {
-		Cache.array[i].address = NAND_CACHE_INIT_ADDR;
-		Cache.array[i].use_cnt = 0;
-		Cache.array[i].changed = CLEAR;
-		Cache.array[i].buf = kzalloc(Cache.cache_item_size,
-					     GFP_ATOMIC);
-		if (!Cache.array[i].buf)
-			goto cache_item_fail;
-		total_bytes += Cache.cache_item_size;
-	}
-
-	/* Malloc memory for IPF */
-	g_pIPF = kzalloc(page_size, GFP_ATOMIC);
-	if (!g_pIPF)
-		goto ipf_fail;
-	total_bytes += page_size;
-
-	/* Malloc memory for data merging during Level2 Cache flush */
-	cache_l2_page_buf = kmalloc(page_size, GFP_ATOMIC);
-	if (!cache_l2_page_buf)
-		goto cache_l2_page_buf_fail;
-	memset(cache_l2_page_buf, 0xff, page_size);
-	total_bytes += page_size;
-
-	cache_l2_blk_buf = kmalloc(block_size, GFP_ATOMIC);
-	if (!cache_l2_blk_buf)
-		goto cache_l2_blk_buf_fail;
-	memset(cache_l2_blk_buf, 0xff, block_size);
-	total_bytes += block_size;
-
-	/* Malloc memory for temp buffer */
-	g_pTempBuf = kzalloc(Cache.cache_item_size, GFP_ATOMIC);
-	if (!g_pTempBuf)
-		goto Temp_buf_fail;
-	total_bytes += Cache.cache_item_size;
-
-	/* Malloc memory for block table blocks */
-	mem_size = (1 + LAST_BT_ID - FIRST_BT_ID) * sizeof(u32);
-	g_pBTBlocks = kmalloc(mem_size, GFP_ATOMIC);
-	if (!g_pBTBlocks)
-		goto bt_blocks_fail;
-	memset(g_pBTBlocks, 0xff, mem_size);
-	total_bytes += mem_size;
-
-	/* Malloc memory for function FTL_Check_Block_Table */
-	flag_check_blk_table = kmalloc(DeviceInfo.wDataBlockNum, GFP_ATOMIC);
-	if (!flag_check_blk_table)
-		goto flag_check_blk_table_fail;
-	total_bytes += DeviceInfo.wDataBlockNum;
-
-	/* Malloc memory for function FTL_Search_Block_Table_IN_Block */
-	tmp_buf_search_bt_in_block = kmalloc(page_size, GFP_ATOMIC);
-	if (!tmp_buf_search_bt_in_block)
-		goto tmp_buf_search_bt_in_block_fail;
-	memset(tmp_buf_search_bt_in_block, 0xff, page_size);
-	total_bytes += page_size;
-
-	mem_size = DeviceInfo.wPageSize - DeviceInfo.wPageDataSize;
-	spare_buf_search_bt_in_block = kmalloc(mem_size, GFP_ATOMIC);
-	if (!spare_buf_search_bt_in_block)
-		goto spare_buf_search_bt_in_block_fail;
-	memset(spare_buf_search_bt_in_block, 0xff, mem_size);
-	total_bytes += mem_size;
-
-	spare_buf_bt_search_bt_in_block = kmalloc(mem_size, GFP_ATOMIC);
-	if (!spare_buf_bt_search_bt_in_block)
-		goto spare_buf_bt_search_bt_in_block_fail;
-	memset(spare_buf_bt_search_bt_in_block, 0xff, mem_size);
-	total_bytes += mem_size;
-
-	/* Malloc memory for function FTL_Read_Block_Table */
-	tmp_buf1_read_blk_table = kmalloc(page_size, GFP_ATOMIC);
-	if (!tmp_buf1_read_blk_table)
-		goto tmp_buf1_read_blk_table_fail;
-	memset(tmp_buf1_read_blk_table, 0xff, page_size);
-	total_bytes += page_size;
-
-	tmp_buf2_read_blk_table = kmalloc(page_size, GFP_ATOMIC);
-	if (!tmp_buf2_read_blk_table)
-		goto tmp_buf2_read_blk_table_fail;
-	memset(tmp_buf2_read_blk_table, 0xff, page_size);
-	total_bytes += page_size;
-
-	/* Malloc memory for function FTL_Static_Wear_Leveling */
-	flags_static_wear_leveling = kmalloc(DeviceInfo.wDataBlockNum,
-					GFP_ATOMIC);
-	if (!flags_static_wear_leveling)
-		goto flags_static_wear_leveling_fail;
-	total_bytes += DeviceInfo.wDataBlockNum;
-
-	/* Malloc memory for function FTL_Write_Block_Table_Data */
-	if (FTL_Get_Block_Table_Flash_Size_Pages() > 3)
-		mem_size = FTL_Get_Block_Table_Flash_Size_Bytes() -
-				2 * DeviceInfo.wPageSize;
-	else
-		mem_size = DeviceInfo.wPageSize;
-	tmp_buf_write_blk_table_data = kmalloc(mem_size, GFP_ATOMIC);
-	if (!tmp_buf_write_blk_table_data)
-		goto tmp_buf_write_blk_table_data_fail;
-	memset(tmp_buf_write_blk_table_data, 0xff, mem_size);
-	total_bytes += mem_size;
-
-	/* Malloc memory for function FTL_Read_Disturbance */
-	tmp_buf_read_disturbance = kmalloc(block_size, GFP_ATOMIC);
-	if (!tmp_buf_read_disturbance)
-		goto tmp_buf_read_disturbance_fail;
-	memset(tmp_buf_read_disturbance, 0xff, block_size);
-	total_bytes += block_size;
-
-	/* Alloc mem for function NAND_Read_Page_Main_Spare of lld_nand.c */
-	buf_read_page_main_spare = kmalloc(DeviceInfo.wPageSize, GFP_ATOMIC);
-	if (!buf_read_page_main_spare)
-		goto buf_read_page_main_spare_fail;
-	total_bytes += DeviceInfo.wPageSize;
-
-	/* Alloc mem for function NAND_Write_Page_Main_Spare of lld_nand.c */
-	buf_write_page_main_spare = kmalloc(DeviceInfo.wPageSize, GFP_ATOMIC);
-	if (!buf_write_page_main_spare)
-		goto buf_write_page_main_spare_fail;
-	total_bytes += DeviceInfo.wPageSize;
-
-	/* Alloc mem for function NAND_Read_Page_Spare of lld_nand.c */
-	buf_read_page_spare = kmalloc(DeviceInfo.wPageSpareSize, GFP_ATOMIC);
-	if (!buf_read_page_spare)
-		goto buf_read_page_spare_fail;
-	memset(buf_read_page_spare, 0xff, DeviceInfo.wPageSpareSize);
-	total_bytes += DeviceInfo.wPageSpareSize;
-
-	/* Alloc mem for function NAND_Get_Bad_Block of lld_nand.c */
-	buf_get_bad_block = kmalloc(DeviceInfo.wPageSpareSize, GFP_ATOMIC);
-	if (!buf_get_bad_block)
-		goto buf_get_bad_block_fail;
-	memset(buf_get_bad_block, 0xff, DeviceInfo.wPageSpareSize);
-	total_bytes += DeviceInfo.wPageSpareSize;
-
-#if CMD_DMA
-	g_temp_buf = kmalloc(block_size, GFP_ATOMIC);
-	if (!g_temp_buf)
-		goto temp_buf_fail;
-	memset(g_temp_buf, 0xff, block_size);
-	total_bytes += block_size;
-
-	/* Malloc memory for copy of block table used in CDMA mode */
-	g_pBTStartingCopy = kzalloc(block_table_size, GFP_ATOMIC);
-	if (!g_pBTStartingCopy)
-		goto bt_starting_copy;
-	total_bytes += block_table_size;
-
-	g_pWearCounterCopy = (u8 *)(g_pBTStartingCopy +
-		DeviceInfo.wDataBlockNum * sizeof(u32));
-
-	if (DeviceInfo.MLCDevice)
-		g_pReadCounterCopy = (u16 *)(g_pBTStartingCopy +
-			DeviceInfo.wDataBlockNum *
-			(sizeof(u32) + sizeof(u8)));
-
-	/* Malloc memory for block table copies */
-	mem_size = 5 * DeviceInfo.wDataBlockNum * sizeof(u32) +
-			5 * DeviceInfo.wDataBlockNum * sizeof(u8);
-	if (DeviceInfo.MLCDevice)
-		mem_size += 5 * DeviceInfo.wDataBlockNum * sizeof(u16);
-	g_pBlockTableCopies = kzalloc(mem_size, GFP_ATOMIC);
-	if (!g_pBlockTableCopies)
-		goto blk_table_copies_fail;
-	total_bytes += mem_size;
-	g_pNextBlockTable = g_pBlockTableCopies;
-
-	/* Malloc memory for Block Table Delta */
-	mem_size = MAX_DESCS * sizeof(struct BTableChangesDelta);
-	g_pBTDelta = kzalloc(mem_size, GFP_ATOMIC);
-	if (!g_pBTDelta)
-		goto bt_delta_fail;
-	total_bytes += mem_size;
-	g_pBTDelta_Free = g_pBTDelta;
-
-	/* Malloc memory for Copy Back Buffers */
-	for (j = 0; j < COPY_BACK_BUF_NUM; j++) {
-		cp_back_buf_copies[j] = kzalloc(block_size, GFP_ATOMIC);
-		if (!cp_back_buf_copies[j])
-			goto cp_back_buf_copies_fail;
-		total_bytes += block_size;
-	}
-	cp_back_buf_idx = 0;
-
-	/* Malloc memory for pending commands list */
-	mem_size = sizeof(struct pending_cmd) * MAX_DESCS;
-	info.pcmds = kzalloc(mem_size, GFP_KERNEL);
-	if (!info.pcmds)
-		goto pending_cmds_buf_fail;
-	total_bytes += mem_size;
-
-	/* Malloc memory for CDMA descripter table */
-	mem_size = sizeof(struct cdma_descriptor) * MAX_DESCS;
-	info.cdma_desc_buf = kzalloc(mem_size, GFP_KERNEL);
-	if (!info.cdma_desc_buf)
-		goto cdma_desc_buf_fail;
-	total_bytes += mem_size;
-
-	/* Malloc memory for Memcpy descripter table */
-	mem_size = sizeof(struct memcpy_descriptor) * MAX_DESCS;
-	info.memcp_desc_buf = kzalloc(mem_size, GFP_KERNEL);
-	if (!info.memcp_desc_buf)
-		goto memcp_desc_buf_fail;
-	total_bytes += mem_size;
-#endif
-
-	nand_dbg_print(NAND_DBG_WARN,
-		"Total memory allocated in FTL layer: %d\n", total_bytes);
-
-	return PASS;
-
-#if CMD_DMA
-memcp_desc_buf_fail:
-	kfree(info.cdma_desc_buf);
-cdma_desc_buf_fail:
-	kfree(info.pcmds);
-pending_cmds_buf_fail:
-cp_back_buf_copies_fail:
-	j--;
-	for (; j >= 0; j--)
-		kfree(cp_back_buf_copies[j]);
-	kfree(g_pBTDelta);
-bt_delta_fail:
-	kfree(g_pBlockTableCopies);
-blk_table_copies_fail:
-	kfree(g_pBTStartingCopy);
-bt_starting_copy:
-	kfree(g_temp_buf);
-temp_buf_fail:
-	kfree(buf_get_bad_block);
-#endif
-
-buf_get_bad_block_fail:
-	kfree(buf_read_page_spare);
-buf_read_page_spare_fail:
-	kfree(buf_write_page_main_spare);
-buf_write_page_main_spare_fail:
-	kfree(buf_read_page_main_spare);
-buf_read_page_main_spare_fail:
-	kfree(tmp_buf_read_disturbance);
-tmp_buf_read_disturbance_fail:
-	kfree(tmp_buf_write_blk_table_data);
-tmp_buf_write_blk_table_data_fail:
-	kfree(flags_static_wear_leveling);
-flags_static_wear_leveling_fail:
-	kfree(tmp_buf2_read_blk_table);
-tmp_buf2_read_blk_table_fail:
-	kfree(tmp_buf1_read_blk_table);
-tmp_buf1_read_blk_table_fail:
-	kfree(spare_buf_bt_search_bt_in_block);
-spare_buf_bt_search_bt_in_block_fail:
-	kfree(spare_buf_search_bt_in_block);
-spare_buf_search_bt_in_block_fail:
-	kfree(tmp_buf_search_bt_in_block);
-tmp_buf_search_bt_in_block_fail:
-	kfree(flag_check_blk_table);
-flag_check_blk_table_fail:
-	kfree(g_pBTBlocks);
-bt_blocks_fail:
-	kfree(g_pTempBuf);
-Temp_buf_fail:
-	kfree(cache_l2_blk_buf);
-cache_l2_blk_buf_fail:
-	kfree(cache_l2_page_buf);
-cache_l2_page_buf_fail:
-	kfree(g_pIPF);
-ipf_fail:
-cache_item_fail:
-	i--;
-	for (; i >= 0; i--)
-		kfree(Cache.array[i].buf);
-	kfree(g_pBlockTable);
-block_table_fail:
-	printk(KERN_ERR "Failed to kmalloc memory in %s Line %d.\n",
-		__FILE__, __LINE__);
-
-	return -ENOMEM;
-}
-
-/* .... */
-static int free_memory(void)
-{
-	int i;
-
-#if CMD_DMA
-	kfree(info.memcp_desc_buf);
-	kfree(info.cdma_desc_buf);
-	kfree(info.pcmds);
-	for (i = COPY_BACK_BUF_NUM - 1; i >= 0; i--)
-		kfree(cp_back_buf_copies[i]);
-	kfree(g_pBTDelta);
-	kfree(g_pBlockTableCopies);
-	kfree(g_pBTStartingCopy);
-	kfree(g_temp_buf);
-	kfree(buf_get_bad_block);
-#endif
-	kfree(buf_read_page_spare);
-	kfree(buf_write_page_main_spare);
-	kfree(buf_read_page_main_spare);
-	kfree(tmp_buf_read_disturbance);
-	kfree(tmp_buf_write_blk_table_data);
-	kfree(flags_static_wear_leveling);
-	kfree(tmp_buf2_read_blk_table);
-	kfree(tmp_buf1_read_blk_table);
-	kfree(spare_buf_bt_search_bt_in_block);
-	kfree(spare_buf_search_bt_in_block);
-	kfree(tmp_buf_search_bt_in_block);
-	kfree(flag_check_blk_table);
-	kfree(g_pBTBlocks);
-	kfree(g_pTempBuf);
-	kfree(g_pIPF);
-	for (i = CACHE_ITEM_NUM - 1; i >= 0; i--)
-		kfree(Cache.array[i].buf);
-	kfree(g_pBlockTable);
-
-	return 0;
-}
-
-static void dump_cache_l2_table(void)
-{
-	struct list_head *p;
-	struct spectra_l2_cache_list *pnd;
-	int n;
-
-	n = 0;
-	list_for_each(p, &cache_l2.table.list) {
-		pnd = list_entry(p, struct spectra_l2_cache_list, list);
-		nand_dbg_print(NAND_DBG_WARN, "dump_cache_l2_table node: %d, logical_blk_num: %d\n", n, pnd->logical_blk_num);
-/*
-		for (i = 0; i < DeviceInfo.wPagesPerBlock; i++) {
-			if (pnd->pages_array[i] != MAX_U32_VALUE)
-				nand_dbg_print(NAND_DBG_WARN, "    pages_array[%d]: 0x%x\n", i, pnd->pages_array[i]);
-		}
-*/
-		n++;
-	}
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     GLOB_FTL_Init
-* Inputs:       none
-* Outputs:      PASS=0 / FAIL=1
-* Description:  allocates the memory for cache array,
-*               important data structures
-*               clears the cache array
-*               reads the block table from flash into array
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-int GLOB_FTL_Init(void)
-{
-	int i;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		__FILE__, __LINE__, __func__);
-
-	Cache.pages_per_item = 1;
-	Cache.cache_item_size = 1 * DeviceInfo.wPageDataSize;
-
-	if (allocate_memory() != PASS)
-		return FAIL;
-
-#if CMD_DMA
-#if RESTORE_CACHE_ON_CDMA_CHAIN_FAILURE
-	memcpy((void *)&cache_start_copy, (void *)&Cache,
-		sizeof(struct flash_cache_tag));
-	memset((void *)&int_cache, -1,
-		sizeof(struct flash_cache_delta_list_tag) *
-		(MAX_CHANS + MAX_DESCS));
-#endif
-	ftl_cmd_cnt = 0;
-#endif
-
-	if (FTL_Read_Block_Table() != PASS)
-		return FAIL;
-
-	/* Init the Level2 Cache data structure */
-	for (i = 0; i < BLK_NUM_FOR_L2_CACHE; i++)
-		cache_l2.blk_array[i] = MAX_U32_VALUE;
-	cache_l2.cur_blk_idx = 0;
-	cache_l2.cur_page_num = 0;
-	INIT_LIST_HEAD(&cache_l2.table.list);
-	cache_l2.table.logical_blk_num = MAX_U32_VALUE;
-
-	dump_cache_l2_table();
-
-	return 0;
-}
-
-
-#if CMD_DMA
-#if 0
-static void save_blk_table_changes(u16 idx)
-{
-	u8 ftl_cmd;
-	u32 *pbt = (u32 *)g_pBTStartingCopy;
-
-#if RESTORE_CACHE_ON_CDMA_CHAIN_FAILURE
-	u16 id;
-	u8 cache_blks;
-
-	id = idx - MAX_CHANS;
-	if (int_cache[id].item != -1) {
-		cache_blks = int_cache[id].item;
-		cache_start_copy.array[cache_blks].address =
-			int_cache[id].cache.address;
-		cache_start_copy.array[cache_blks].changed =
-			int_cache[id].cache.changed;
-	}
-#endif
-
-	ftl_cmd = p_BTableChangesDelta->ftl_cmd_cnt;
-
-	while (ftl_cmd <= PendingCMD[idx].Tag) {
-		if (p_BTableChangesDelta->ValidFields == 0x01) {
-			g_wBlockTableOffset =
-				p_BTableChangesDelta->g_wBlockTableOffset;
-		} else if (p_BTableChangesDelta->ValidFields == 0x0C) {
-			pbt[p_BTableChangesDelta->BT_Index] =
-				p_BTableChangesDelta->BT_Entry_Value;
-			debug_boundary_error(((
-				p_BTableChangesDelta->BT_Index)),
-				DeviceInfo.wDataBlockNum, 0);
-		} else if (p_BTableChangesDelta->ValidFields == 0x03) {
-			g_wBlockTableOffset =
-				p_BTableChangesDelta->g_wBlockTableOffset;
-			g_wBlockTableIndex =
-				p_BTableChangesDelta->g_wBlockTableIndex;
-		} else if (p_BTableChangesDelta->ValidFields == 0x30) {
-			g_pWearCounterCopy[p_BTableChangesDelta->WC_Index] =
-				p_BTableChangesDelta->WC_Entry_Value;
-		} else if ((DeviceInfo.MLCDevice) &&
-			(p_BTableChangesDelta->ValidFields == 0xC0)) {
-			g_pReadCounterCopy[p_BTableChangesDelta->RC_Index] =
-				p_BTableChangesDelta->RC_Entry_Value;
-			nand_dbg_print(NAND_DBG_DEBUG,
-				"In event status setting read counter "
-				"GLOB_ftl_cmd_cnt %u Count %u Index %u\n",
-				ftl_cmd,
-				p_BTableChangesDelta->RC_Entry_Value,
-				(unsigned int)p_BTableChangesDelta->RC_Index);
-		} else {
-			nand_dbg_print(NAND_DBG_DEBUG,
-				"This should never occur \n");
-		}
-		p_BTableChangesDelta += 1;
-		ftl_cmd = p_BTableChangesDelta->ftl_cmd_cnt;
-	}
-}
-
-static void discard_cmds(u16 n)
-{
-	u32 *pbt = (u32 *)g_pBTStartingCopy;
-	u8 ftl_cmd;
-	unsigned long k;
-#if RESTORE_CACHE_ON_CDMA_CHAIN_FAILURE
-	u8 cache_blks;
-	u16 id;
-#endif
-
-	if ((PendingCMD[n].CMD == WRITE_MAIN_CMD) ||
-		(PendingCMD[n].CMD == WRITE_MAIN_SPARE_CMD)) {
-		for (k = 0; k < DeviceInfo.wDataBlockNum; k++) {
-			if (PendingCMD[n].Block == (pbt[k] & (~BAD_BLOCK)))
-				MARK_BLK_AS_DISCARD(pbt[k]);
-		}
-	}
-
-	ftl_cmd = p_BTableChangesDelta->ftl_cmd_cnt;
-	while (ftl_cmd <= PendingCMD[n].Tag) {
-		p_BTableChangesDelta += 1;
-		ftl_cmd = p_BTableChangesDelta->ftl_cmd_cnt;
-	}
-
-#if RESTORE_CACHE_ON_CDMA_CHAIN_FAILURE
-	id = n - MAX_CHANS;
-
-	if (int_cache[id].item != -1) {
-		cache_blks = int_cache[id].item;
-		if (PendingCMD[n].CMD == MEMCOPY_CMD) {
-			if ((cache_start_copy.array[cache_blks].buf <=
-				PendingCMD[n].DataDestAddr) &&
-				((cache_start_copy.array[cache_blks].buf +
-				Cache.cache_item_size) >
-				PendingCMD[n].DataDestAddr)) {
-				cache_start_copy.array[cache_blks].address =
-						NAND_CACHE_INIT_ADDR;
-				cache_start_copy.array[cache_blks].use_cnt =
-								0;
-				cache_start_copy.array[cache_blks].changed =
-								CLEAR;
-			}
-		} else {
-			cache_start_copy.array[cache_blks].address =
-					int_cache[id].cache.address;
-			cache_start_copy.array[cache_blks].changed =
-					int_cache[id].cache.changed;
-		}
-	}
-#endif
-}
-
-static void process_cmd_pass(int *first_failed_cmd, u16 idx)
-{
-	if (0 == *first_failed_cmd)
-		save_blk_table_changes(idx);
-	else
-		discard_cmds(idx);
-}
-
-static void process_cmd_fail_abort(int *first_failed_cmd,
-				u16 idx, int event)
-{
-	u32 *pbt = (u32 *)g_pBTStartingCopy;
-	u8 ftl_cmd;
-	unsigned long i;
-	int erase_fail, program_fail;
-#if RESTORE_CACHE_ON_CDMA_CHAIN_FAILURE
-	u8 cache_blks;
-	u16 id;
-#endif
-
-	if (0 == *first_failed_cmd)
-		*first_failed_cmd = PendingCMD[idx].SBDCmdIndex;
-
-	nand_dbg_print(NAND_DBG_DEBUG, "Uncorrectable error has occurred "
-		"while executing %u Command %u accesing Block %u\n",
-		(unsigned int)p_BTableChangesDelta->ftl_cmd_cnt,
-		PendingCMD[idx].CMD,
-		(unsigned int)PendingCMD[idx].Block);
-
-	ftl_cmd = p_BTableChangesDelta->ftl_cmd_cnt;
-	while (ftl_cmd <= PendingCMD[idx].Tag) {
-		p_BTableChangesDelta += 1;
-		ftl_cmd = p_BTableChangesDelta->ftl_cmd_cnt;
-	}
-
-#if RESTORE_CACHE_ON_CDMA_CHAIN_FAILURE
-	id = idx - MAX_CHANS;
-
-	if (int_cache[id].item != -1) {
-		cache_blks = int_cache[id].item;
-		if ((PendingCMD[idx].CMD == WRITE_MAIN_CMD)) {
-			cache_start_copy.array[cache_blks].address =
-					int_cache[id].cache.address;
-			cache_start_copy.array[cache_blks].changed = SET;
-		} else if ((PendingCMD[idx].CMD == READ_MAIN_CMD)) {
-			cache_start_copy.array[cache_blks].address =
-				NAND_CACHE_INIT_ADDR;
-			cache_start_copy.array[cache_blks].use_cnt = 0;
-			cache_start_copy.array[cache_blks].changed =
-							CLEAR;
-		} else if (PendingCMD[idx].CMD == ERASE_CMD) {
-			/* ? */
-		} else if (PendingCMD[idx].CMD == MEMCOPY_CMD) {
-			/* ? */
-		}
-	}
-#endif
-
-	erase_fail = (event == EVENT_ERASE_FAILURE) &&
-			(PendingCMD[idx].CMD == ERASE_CMD);
-
-	program_fail = (event == EVENT_PROGRAM_FAILURE) &&
-			((PendingCMD[idx].CMD == WRITE_MAIN_CMD) ||
-			(PendingCMD[idx].CMD == WRITE_MAIN_SPARE_CMD));
-
-	if (erase_fail || program_fail) {
-		for (i = 0; i < DeviceInfo.wDataBlockNum; i++) {
-			if (PendingCMD[idx].Block ==
-				(pbt[i] & (~BAD_BLOCK)))
-				MARK_BLOCK_AS_BAD(pbt[i]);
-		}
-	}
-}
-
-static void process_cmd(int *first_failed_cmd, u16 idx, int event)
-{
-	u8 ftl_cmd;
-	int cmd_match = 0;
-
-	if (p_BTableChangesDelta->ftl_cmd_cnt == PendingCMD[idx].Tag)
-		cmd_match = 1;
-
-	if (PendingCMD[idx].Status == CMD_PASS) {
-		process_cmd_pass(first_failed_cmd, idx);
-	} else if ((PendingCMD[idx].Status == CMD_FAIL) ||
-			(PendingCMD[idx].Status == CMD_ABORT)) {
-		process_cmd_fail_abort(first_failed_cmd, idx, event);
-	} else if ((PendingCMD[idx].Status == CMD_NOT_DONE) &&
-					PendingCMD[idx].Tag) {
-		nand_dbg_print(NAND_DBG_DEBUG,
-			" Command no. %hu is not executed\n",
-			(unsigned int)PendingCMD[idx].Tag);
-		ftl_cmd = p_BTableChangesDelta->ftl_cmd_cnt;
-		while (ftl_cmd <= PendingCMD[idx].Tag) {
-			p_BTableChangesDelta += 1;
-			ftl_cmd = p_BTableChangesDelta->ftl_cmd_cnt;
-		}
-	}
-}
-#endif
-
-static void process_cmd(int *first_failed_cmd, u16 idx, int event)
-{
-	printk(KERN_ERR "temporary workaround function. "
-		"Should not be called! \n");
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:    	GLOB_FTL_Event_Status
-* Inputs:       none
-* Outputs:      Event Code
-* Description:	It is called by SBD after hardware interrupt signalling
-*               completion of commands chain
-*               It does following things
-*               get event status from LLD
-*               analyze command chain status
-*               determine last command executed
-*               analyze results
-*               rebuild the block table in case of uncorrectable error
-*               return event code
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-int GLOB_FTL_Event_Status(int *first_failed_cmd)
-{
-	int event_code = PASS;
-	u16 i_P;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		__FILE__, __LINE__, __func__);
-
-	*first_failed_cmd = 0;
-
-	event_code = GLOB_LLD_Event_Status();
-
-	switch (event_code) {
-	case EVENT_PASS:
-		nand_dbg_print(NAND_DBG_DEBUG, "Handling EVENT_PASS\n");
-		break;
-	case EVENT_UNCORRECTABLE_DATA_ERROR:
-		nand_dbg_print(NAND_DBG_DEBUG, "Handling Uncorrectable ECC!\n");
-		break;
-	case EVENT_PROGRAM_FAILURE:
-	case EVENT_ERASE_FAILURE:
-		nand_dbg_print(NAND_DBG_WARN, "Handling Ugly case. "
-			"Event code: 0x%x\n", event_code);
-		p_BTableChangesDelta =
-			(struct BTableChangesDelta *)g_pBTDelta;
-		for (i_P = MAX_CHANS; i_P < (ftl_cmd_cnt + MAX_CHANS);
-				i_P++)
-			process_cmd(first_failed_cmd, i_P, event_code);
-		memcpy(g_pBlockTable, g_pBTStartingCopy,
-			DeviceInfo.wDataBlockNum * sizeof(u32));
-		memcpy(g_pWearCounter, g_pWearCounterCopy,
-			DeviceInfo.wDataBlockNum * sizeof(u8));
-		if (DeviceInfo.MLCDevice)
-			memcpy(g_pReadCounter, g_pReadCounterCopy,
-				DeviceInfo.wDataBlockNum * sizeof(u16));
-
-#if RESTORE_CACHE_ON_CDMA_CHAIN_FAILURE
-		memcpy((void *)&Cache, (void *)&cache_start_copy,
-			sizeof(struct flash_cache_tag));
-		memset((void *)&int_cache, -1,
-			sizeof(struct flash_cache_delta_list_tag) *
-			(MAX_DESCS + MAX_CHANS));
-#endif
-		break;
-	default:
-		nand_dbg_print(NAND_DBG_WARN,
-			"Handling unexpected event code - 0x%x\n",
-			event_code);
-		event_code = ERR;
-		break;
-	}
-
-	memcpy(g_pBTStartingCopy, g_pBlockTable,
-		DeviceInfo.wDataBlockNum * sizeof(u32));
-	memcpy(g_pWearCounterCopy, g_pWearCounter,
-		DeviceInfo.wDataBlockNum * sizeof(u8));
-	if (DeviceInfo.MLCDevice)
-		memcpy(g_pReadCounterCopy, g_pReadCounter,
-			DeviceInfo.wDataBlockNum * sizeof(u16));
-
-	g_pBTDelta_Free = g_pBTDelta;
-	ftl_cmd_cnt = 0;
-	g_pNextBlockTable = g_pBlockTableCopies;
-	cp_back_buf_idx = 0;
-
-#if RESTORE_CACHE_ON_CDMA_CHAIN_FAILURE
-	memcpy((void *)&cache_start_copy, (void *)&Cache,
-		sizeof(struct flash_cache_tag));
-	memset((void *)&int_cache, -1,
-		sizeof(struct flash_cache_delta_list_tag) *
-		(MAX_DESCS + MAX_CHANS));
-#endif
-
-	return event_code;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     glob_ftl_execute_cmds
-* Inputs:       none
-* Outputs:      none
-* Description:  pass thru to LLD
-***************************************************************/
-u16 glob_ftl_execute_cmds(void)
-{
-	nand_dbg_print(NAND_DBG_TRACE,
-		"glob_ftl_execute_cmds: ftl_cmd_cnt %u\n",
-		(unsigned int)ftl_cmd_cnt);
-	g_SBDCmdIndex = 0;
-	return glob_lld_execute_cmds();
-}
-
-#endif
-
-#if !CMD_DMA
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     GLOB_FTL_Read Immediate
-* Inputs:         pointer to data
-*                     address of data
-* Outputs:      PASS / FAIL
-* Description:  Reads one page of data into RAM directly from flash without
-*       using or disturbing cache.It is assumed this function is called
-*       with CMD-DMA disabled.
-*****************************************************************/
-int GLOB_FTL_Read_Immediate(u8 *read_data, u64 addr)
-{
-	int wResult = FAIL;
-	u32 Block;
-	u16 Page;
-	u32 phy_blk;
-	u32 *pbt = (u32 *)g_pBlockTable;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		__FILE__, __LINE__, __func__);
-
-	Block = BLK_FROM_ADDR(addr);
-	Page = PAGE_FROM_ADDR(addr, Block);
-
-	if (!IS_SPARE_BLOCK(Block))
-		return FAIL;
-
-	phy_blk = pbt[Block];
-	wResult = GLOB_LLD_Read_Page_Main(read_data, phy_blk, Page, 1);
-
-	if (DeviceInfo.MLCDevice) {
-		g_pReadCounter[phy_blk - DeviceInfo.wSpectraStartBlock]++;
-		if (g_pReadCounter[phy_blk - DeviceInfo.wSpectraStartBlock]
-			>= MAX_READ_COUNTER)
-			FTL_Read_Disturbance(phy_blk);
-		if (g_cBlockTableStatus != IN_PROGRESS_BLOCK_TABLE) {
-			g_cBlockTableStatus = IN_PROGRESS_BLOCK_TABLE;
-			FTL_Write_IN_Progress_Block_Table_Page();
-		}
-	}
-
-	return wResult;
-}
-#endif
-
-#ifdef SUPPORT_BIG_ENDIAN
-/*********************************************************************
-* Function:     FTL_Invert_Block_Table
-* Inputs:       none
-* Outputs:      none
-* Description:  Re-format the block table in ram based on BIG_ENDIAN and
-*                     LARGE_BLOCKNUM if necessary
-**********************************************************************/
-static void FTL_Invert_Block_Table(void)
-{
-	u32 i;
-	u32 *pbt = (u32 *)g_pBlockTable;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		__FILE__, __LINE__, __func__);
-
-#ifdef SUPPORT_LARGE_BLOCKNUM
-	for (i = 0; i < DeviceInfo.wDataBlockNum; i++) {
-		pbt[i] = INVERTUINT32(pbt[i]);
-		g_pWearCounter[i] = INVERTUINT32(g_pWearCounter[i]);
-	}
-#else
-	for (i = 0; i < DeviceInfo.wDataBlockNum; i++) {
-		pbt[i] = INVERTUINT16(pbt[i]);
-		g_pWearCounter[i] = INVERTUINT16(g_pWearCounter[i]);
-	}
-#endif
-}
-#endif
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     GLOB_FTL_Flash_Init
-* Inputs:       none
-* Outputs:      PASS=0 / FAIL=0x01 (based on read ID)
-* Description:  The flash controller is initialized
-*               The flash device is reset
-*               Perform a flash READ ID command to confirm that a
-*                   valid device is attached and active.
-*                   The DeviceInfo structure gets filled in
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-int GLOB_FTL_Flash_Init(void)
-{
-	int status = FAIL;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		__FILE__, __LINE__, __func__);
-
-	g_SBDCmdIndex = 0;
-
-	status = GLOB_LLD_Flash_Init();
-
-	return status;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Inputs:       none
-* Outputs:      PASS=0 / FAIL=0x01 (based on read ID)
-* Description:  The flash controller is released
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-int GLOB_FTL_Flash_Release(void)
-{
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		__FILE__, __LINE__, __func__);
-
-	return GLOB_LLD_Flash_Release();
-}
-
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     GLOB_FTL_Cache_Release
-* Inputs:       none
-* Outputs:      none
-* Description:  release all allocated memory in GLOB_FTL_Init
-*               (allocated in GLOB_FTL_Init)
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-void GLOB_FTL_Cache_Release(void)
-{
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-			       __FILE__, __LINE__, __func__);
-
-	free_memory();
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     FTL_Cache_If_Hit
-* Inputs:       Page Address
-* Outputs:      Block number/UNHIT BLOCK
-* Description:  Determines if the addressed page is in cache
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-static u16 FTL_Cache_If_Hit(u64 page_addr)
-{
-	u16 item;
-	u64 addr;
-	int i;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		__FILE__, __LINE__, __func__);
-
-	item = UNHIT_CACHE_ITEM;
-	for (i = 0; i < CACHE_ITEM_NUM; i++) {
-		addr = Cache.array[i].address;
-		if ((page_addr >= addr) &&
-			(page_addr < (addr + Cache.cache_item_size))) {
-			item = i;
-			break;
-		}
-	}
-
-	return item;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     FTL_Calculate_LRU
-* Inputs:       None
-* Outputs:      None
-* Description:  Calculate the least recently block in a cache and record its
-*               index in LRU field.
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-static void FTL_Calculate_LRU(void)
-{
-	u16 i, bCurrentLRU, bTempCount;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		__FILE__, __LINE__, __func__);
-
-	bCurrentLRU = 0;
-	bTempCount = MAX_WORD_VALUE;
-
-	for (i = 0; i < CACHE_ITEM_NUM; i++) {
-		if (Cache.array[i].use_cnt < bTempCount) {
-			bCurrentLRU = i;
-			bTempCount = Cache.array[i].use_cnt;
-		}
-	}
-
-	Cache.LRU = bCurrentLRU;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     FTL_Cache_Read_Page
-* Inputs:       pointer to read buffer, logical address and cache item number
-* Outputs:      None
-* Description:  Read the page from the cached block addressed by blocknumber
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-static void FTL_Cache_Read_Page(u8 *data_buf, u64 logic_addr, u16 cache_item)
-{
-	u8 *start_addr;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		__FILE__, __LINE__, __func__);
-
-	start_addr = Cache.array[cache_item].buf;
-	start_addr += (u32)(((logic_addr - Cache.array[cache_item].address) >>
-		DeviceInfo.nBitsInPageDataSize) * DeviceInfo.wPageDataSize);
-
-#if CMD_DMA
-	GLOB_LLD_MemCopy_CMD(data_buf, start_addr,
-			DeviceInfo.wPageDataSize, 0);
-	ftl_cmd_cnt++;
-#else
-	memcpy(data_buf, start_addr, DeviceInfo.wPageDataSize);
-#endif
-
-	if (Cache.array[cache_item].use_cnt < MAX_WORD_VALUE)
-		Cache.array[cache_item].use_cnt++;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     FTL_Cache_Read_All
-* Inputs:       pointer to read buffer,block address
-* Outputs:      PASS=0 / FAIL =1
-* Description:  It reads pages in cache
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-static int FTL_Cache_Read_All(u8 *pData, u64 phy_addr)
-{
-	int wResult = PASS;
-	u32 Block;
-	u32 lba;
-	u16 Page;
-	u16 PageCount;
-	u32 *pbt = (u32 *)g_pBlockTable;
-	u32 i;
-
-	Block = BLK_FROM_ADDR(phy_addr);
-	Page = PAGE_FROM_ADDR(phy_addr, Block);
-	PageCount = Cache.pages_per_item;
-
-	nand_dbg_print(NAND_DBG_DEBUG,
-			"%s, Line %d, Function: %s, Block: 0x%x\n",
-			__FILE__, __LINE__, __func__, Block);
-
-	lba = 0xffffffff;
-	for (i = 0; i < DeviceInfo.wDataBlockNum; i++) {
-		if ((pbt[i] & (~BAD_BLOCK)) == Block) {
-			lba = i;
-			if (IS_SPARE_BLOCK(i) || IS_BAD_BLOCK(i) ||
-				IS_DISCARDED_BLOCK(i)) {
-				/* Add by yunpeng -2008.12.3 */
-#if CMD_DMA
-				GLOB_LLD_MemCopy_CMD(pData, g_temp_buf,
-				PageCount * DeviceInfo.wPageDataSize, 0);
-				ftl_cmd_cnt++;
-#else
-				memset(pData, 0xFF,
-					PageCount * DeviceInfo.wPageDataSize);
-#endif
-				return wResult;
-			} else {
-				continue; /* break ?? */
-			}
-		}
-	}
-
-	if (0xffffffff == lba)
-		printk(KERN_ERR "FTL_Cache_Read_All: Block is not found in BT\n");
-
-#if CMD_DMA
-	wResult = GLOB_LLD_Read_Page_Main_cdma(pData, Block, Page,
-			PageCount, LLD_CMD_FLAG_MODE_CDMA);
-	if (DeviceInfo.MLCDevice) {
-		g_pReadCounter[Block - DeviceInfo.wSpectraStartBlock]++;
-		nand_dbg_print(NAND_DBG_DEBUG,
-			       "Read Counter modified in ftl_cmd_cnt %u"
-				" Block %u Counter%u\n",
-			       ftl_cmd_cnt, (unsigned int)Block,
-			       g_pReadCounter[Block -
-			       DeviceInfo.wSpectraStartBlock]);
-
-		p_BTableChangesDelta =
-			(struct BTableChangesDelta *)g_pBTDelta_Free;
-		g_pBTDelta_Free += sizeof(struct BTableChangesDelta);
-		p_BTableChangesDelta->ftl_cmd_cnt = ftl_cmd_cnt;
-		p_BTableChangesDelta->RC_Index =
-			Block - DeviceInfo.wSpectraStartBlock;
-		p_BTableChangesDelta->RC_Entry_Value =
-			g_pReadCounter[Block - DeviceInfo.wSpectraStartBlock];
-		p_BTableChangesDelta->ValidFields = 0xC0;
-
-		ftl_cmd_cnt++;
-
-		if (g_pReadCounter[Block - DeviceInfo.wSpectraStartBlock] >=
-		    MAX_READ_COUNTER)
-			FTL_Read_Disturbance(Block);
-		if (g_cBlockTableStatus != IN_PROGRESS_BLOCK_TABLE) {
-			g_cBlockTableStatus = IN_PROGRESS_BLOCK_TABLE;
-			FTL_Write_IN_Progress_Block_Table_Page();
-		}
-	} else {
-		ftl_cmd_cnt++;
-	}
-#else
-	wResult = GLOB_LLD_Read_Page_Main(pData, Block, Page, PageCount);
-	if (wResult == FAIL)
-		return wResult;
-
-	if (DeviceInfo.MLCDevice) {
-		g_pReadCounter[Block - DeviceInfo.wSpectraStartBlock]++;
-		if (g_pReadCounter[Block - DeviceInfo.wSpectraStartBlock] >=
-						MAX_READ_COUNTER)
-			FTL_Read_Disturbance(Block);
-		if (g_cBlockTableStatus != IN_PROGRESS_BLOCK_TABLE) {
-			g_cBlockTableStatus = IN_PROGRESS_BLOCK_TABLE;
-			FTL_Write_IN_Progress_Block_Table_Page();
-		}
-	}
-#endif
-	return wResult;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     FTL_Cache_Write_All
-* Inputs:       pointer to cache in sys memory
-*               address of free block in flash
-* Outputs:      PASS=0 / FAIL=1
-* Description:  writes all the pages of the block in cache to flash
-*
-*               NOTE:need to make sure this works ok when cache is limited
-*               to a partial block. This is where copy-back would be
-*               activated.  This would require knowing which pages in the
-*               cached block are clean/dirty.Right now we only know if
-*               the whole block is clean/dirty.
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-static int FTL_Cache_Write_All(u8 *pData, u64 blk_addr)
-{
-	u16 wResult = PASS;
-	u32 Block;
-	u16 Page;
-	u16 PageCount;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-			       __FILE__, __LINE__, __func__);
-
-	nand_dbg_print(NAND_DBG_DEBUG, "This block %d going to be written "
-		"on %d\n", cache_block_to_write,
-		(u32)(blk_addr >> DeviceInfo.nBitsInBlockDataSize));
-
-	Block = BLK_FROM_ADDR(blk_addr);
-	Page = PAGE_FROM_ADDR(blk_addr, Block);
-	PageCount = Cache.pages_per_item;
-
-#if CMD_DMA
-	if (FAIL == GLOB_LLD_Write_Page_Main_cdma(pData,
-					Block, Page, PageCount)) {
-		nand_dbg_print(NAND_DBG_WARN,
-			"NAND Program fail in %s, Line %d, "
-			"Function: %s, new Bad Block %d generated! "
-			"Need Bad Block replacing.\n",
-			__FILE__, __LINE__, __func__, Block);
-		wResult = FAIL;
-	}
-	ftl_cmd_cnt++;
-#else
-	if (FAIL == GLOB_LLD_Write_Page_Main(pData, Block, Page, PageCount)) {
-		nand_dbg_print(NAND_DBG_WARN, "NAND Program fail in %s,"
-			" Line %d, Function %s, new Bad Block %d generated!"
-			"Need Bad Block replacing.\n",
-			__FILE__, __LINE__, __func__, Block);
-		wResult = FAIL;
-	}
-#endif
-	return wResult;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     FTL_Copy_Block
-* Inputs:       source block address
-*               Destination block address
-* Outputs:      PASS=0 / FAIL=1
-* Description:  used only for static wear leveling to move the block
-*               containing static data to new blocks(more worn)
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-int FTL_Copy_Block(u64 old_blk_addr, u64 blk_addr)
-{
-	int i, r1, r2, wResult = PASS;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		__FILE__, __LINE__, __func__);
-
-	for (i = 0; i < DeviceInfo.wPagesPerBlock; i += Cache.pages_per_item) {
-		r1 = FTL_Cache_Read_All(g_pTempBuf, old_blk_addr +
-					i * DeviceInfo.wPageDataSize);
-		r2 = FTL_Cache_Write_All(g_pTempBuf, blk_addr +
-					i * DeviceInfo.wPageDataSize);
-		if ((ERR == r1) || (FAIL == r2)) {
-			wResult = FAIL;
-			break;
-		}
-	}
-
-	return wResult;
-}
-
-/* Search the block table to find out the least wear block and then return it */
-static u32 find_least_worn_blk_for_l2_cache(void)
-{
-	int i;
-	u32 *pbt = (u32 *)g_pBlockTable;
-	u8 least_wear_cnt = MAX_BYTE_VALUE;
-	u32 least_wear_blk_idx = MAX_U32_VALUE;
-	u32 phy_idx;
-
-	for (i = 0; i < DeviceInfo.wDataBlockNum; i++) {
-		if (IS_SPARE_BLOCK(i)) {
-			phy_idx = (u32)((~BAD_BLOCK) & pbt[i]);
-			if (phy_idx > DeviceInfo.wSpectraEndBlock)
-				printk(KERN_ERR "find_least_worn_blk_for_l2_cache: "
-					"Too big phy block num (%d)\n", phy_idx);
-			if (g_pWearCounter[phy_idx -DeviceInfo.wSpectraStartBlock] < least_wear_cnt) {
-				least_wear_cnt = g_pWearCounter[phy_idx - DeviceInfo.wSpectraStartBlock];
-				least_wear_blk_idx = i;
-			}
-		}
-	}
-
-	nand_dbg_print(NAND_DBG_WARN,
-		"find_least_worn_blk_for_l2_cache: "
-		"find block %d with least worn counter (%d)\n",
-		least_wear_blk_idx, least_wear_cnt);
-
-	return least_wear_blk_idx;
-}
-
-
-
-/* Get blocks for Level2 Cache */
-static int get_l2_cache_blks(void)
-{
-	int n;
-	u32 blk;
-	u32 *pbt = (u32 *)g_pBlockTable;
-
-	for (n = 0; n < BLK_NUM_FOR_L2_CACHE; n++) {
-		blk = find_least_worn_blk_for_l2_cache();
-		if (blk >= DeviceInfo.wDataBlockNum) {
-			nand_dbg_print(NAND_DBG_WARN,
-				"find_least_worn_blk_for_l2_cache: "
-				"No enough free NAND blocks (n: %d) for L2 Cache!\n", n);
-			return FAIL;
-		}
-		/* Tag the free block as discard in block table */
-		pbt[blk] = (pbt[blk] & (~BAD_BLOCK)) | DISCARD_BLOCK;
-		/* Add the free block to the L2 Cache block array */
-		cache_l2.blk_array[n] = pbt[blk] & (~BAD_BLOCK);
-	}
-
-	return PASS;
-}
-
-static int erase_l2_cache_blocks(void)
-{
-	int i, ret = PASS;
-	u32 pblk, lblk = BAD_BLOCK;
-	u64 addr;
-	u32 *pbt = (u32 *)g_pBlockTable;
-
-	nand_dbg_print(NAND_DBG_WARN, "%s, Line %d, Function: %s\n",
-			       __FILE__, __LINE__, __func__);
-
-	for (i = 0; i < BLK_NUM_FOR_L2_CACHE; i++) {
-		pblk = cache_l2.blk_array[i];
-
-		/* If the L2 cache block is invalid, then just skip it */
-		if (MAX_U32_VALUE == pblk)
-			continue;
-
-		BUG_ON(pblk > DeviceInfo.wSpectraEndBlock);
-
-		addr = (u64)pblk << DeviceInfo.nBitsInBlockDataSize;
-		if (PASS == GLOB_FTL_Block_Erase(addr)) {
-			/* Get logical block number of the erased block */
-			lblk = FTL_Get_Block_Index(pblk);
-			BUG_ON(BAD_BLOCK == lblk);
-			/* Tag it as free in the block table */
-			pbt[lblk] &= (u32)(~DISCARD_BLOCK);
-			pbt[lblk] |= (u32)(SPARE_BLOCK);
-		} else {
-			MARK_BLOCK_AS_BAD(pbt[lblk]);
-			ret = ERR;
-		}
-	}
-
-	return ret;
-}
-
-/*
- * Merge the valid data page in the L2 cache blocks into NAND.
-*/
-static int flush_l2_cache(void)
-{
-	struct list_head *p;
-	struct spectra_l2_cache_list *pnd, *tmp_pnd;
-	u32 *pbt = (u32 *)g_pBlockTable;
-	u32 phy_blk, l2_blk;
-	u64 addr;
-	u16 l2_page;
-	int i, ret = PASS;
-
-	nand_dbg_print(NAND_DBG_WARN, "%s, Line %d, Function: %s\n",
-			       __FILE__, __LINE__, __func__);
-
-	if (list_empty(&cache_l2.table.list)) /* No data to flush */
-		return ret;
-
-	//dump_cache_l2_table();
-
-	if (IN_PROGRESS_BLOCK_TABLE != g_cBlockTableStatus) {
-		g_cBlockTableStatus = IN_PROGRESS_BLOCK_TABLE;
-		FTL_Write_IN_Progress_Block_Table_Page();
-	}
-
-	list_for_each(p, &cache_l2.table.list) {
-		pnd = list_entry(p, struct spectra_l2_cache_list, list);
-		if (IS_SPARE_BLOCK(pnd->logical_blk_num) ||
-			IS_BAD_BLOCK(pnd->logical_blk_num) ||
-			IS_DISCARDED_BLOCK(pnd->logical_blk_num)) {
-			nand_dbg_print(NAND_DBG_WARN, "%s, Line %d\n", __FILE__, __LINE__);
-			memset(cache_l2_blk_buf, 0xff, DeviceInfo.wPagesPerBlock * DeviceInfo.wPageDataSize);			
-		} else {
-			nand_dbg_print(NAND_DBG_WARN, "%s, Line %d\n", __FILE__, __LINE__);
-			phy_blk = pbt[pnd->logical_blk_num] & (~BAD_BLOCK);
-			ret = GLOB_LLD_Read_Page_Main(cache_l2_blk_buf,
-				phy_blk, 0, DeviceInfo.wPagesPerBlock);
-			if (ret == FAIL) {
-				printk(KERN_ERR "Read NAND page fail in %s, Line %d\n", __FILE__, __LINE__);
-			}
-		}
-
-		for (i = 0; i < DeviceInfo.wPagesPerBlock; i++) {
-			if (pnd->pages_array[i] != MAX_U32_VALUE) {
-				l2_blk = cache_l2.blk_array[(pnd->pages_array[i] >> 16) & 0xffff];
-				l2_page = pnd->pages_array[i] & 0xffff;
-				ret = GLOB_LLD_Read_Page_Main(cache_l2_page_buf, l2_blk, l2_page, 1);
-				if (ret == FAIL) {
-					printk(KERN_ERR "Read NAND page fail in %s, Line %d\n", __FILE__, __LINE__);
-				}
-				memcpy(cache_l2_blk_buf + i * DeviceInfo.wPageDataSize, cache_l2_page_buf, DeviceInfo.wPageDataSize);
-			}
-		}
-
-		/* Find a free block and tag the original block as discarded */
-		addr = (u64)pnd->logical_blk_num << DeviceInfo.nBitsInBlockDataSize;
-		ret = FTL_Replace_Block(addr);
-		if (ret == FAIL) {
-			printk(KERN_ERR "FTL_Replace_Block fail in %s, Line %d\n", __FILE__, __LINE__);
-		}
-
-		/* Write back the updated data into NAND */
-		phy_blk = pbt[pnd->logical_blk_num] & (~BAD_BLOCK);
-		if (FAIL == GLOB_LLD_Write_Page_Main(cache_l2_blk_buf, phy_blk, 0, DeviceInfo.wPagesPerBlock)) {
-			nand_dbg_print(NAND_DBG_WARN,
-				"Program NAND block %d fail in %s, Line %d\n",
-				phy_blk, __FILE__, __LINE__);
-			/* This may not be really a bad block. So just tag it as discarded. */
-			/* Then it has a chance to be erased when garbage collection. */
-			/* If it is really bad, then the erase will fail and it will be marked */
-			/* as bad then. Otherwise it will be marked as free and can be used again */
-			MARK_BLK_AS_DISCARD(pbt[pnd->logical_blk_num]);
-			/* Find another free block and write it again */
-			FTL_Replace_Block(addr);
-			phy_blk = pbt[pnd->logical_blk_num] & (~BAD_BLOCK);
-			if (FAIL == GLOB_LLD_Write_Page_Main(cache_l2_blk_buf, phy_blk, 0, DeviceInfo.wPagesPerBlock)) {
-				printk(KERN_ERR "Failed to write back block %d when flush L2 cache."
-					"Some data will be lost!\n", phy_blk);
-				MARK_BLOCK_AS_BAD(pbt[pnd->logical_blk_num]);
-			}
-		} else {
-			/* tag the new free block as used block */
-			pbt[pnd->logical_blk_num] &= (~SPARE_BLOCK);
-		}
-	}
-
-	/* Destroy the L2 Cache table and free the memory of all nodes */
-	list_for_each_entry_safe(pnd, tmp_pnd, &cache_l2.table.list, list) {
-		list_del(&pnd->list);
-		kfree(pnd);
-	}
-
-	/* Erase discard L2 cache blocks */
-	if (erase_l2_cache_blocks() != PASS)
-		nand_dbg_print(NAND_DBG_WARN,
-			" Erase L2 cache blocks error in %s, Line %d\n",
-			__FILE__, __LINE__);
-
-	/* Init the Level2 Cache data structure */
-	for (i = 0; i < BLK_NUM_FOR_L2_CACHE; i++)
-		cache_l2.blk_array[i] = MAX_U32_VALUE;
-	cache_l2.cur_blk_idx = 0;
-	cache_l2.cur_page_num = 0;
-	INIT_LIST_HEAD(&cache_l2.table.list);
-	cache_l2.table.logical_blk_num = MAX_U32_VALUE;
-
-	return ret;
-}
-
-/*
- * Write back a changed victim cache item to the Level2 Cache
- * and update the L2 Cache table to map the change.
- * If the L2 Cache is full, then start to do the L2 Cache flush.
-*/
-static int write_back_to_l2_cache(u8 *buf, u64 logical_addr)
-{
-	u32 logical_blk_num;
-	u16 logical_page_num;
-	struct list_head *p;
-	struct spectra_l2_cache_list *pnd, *pnd_new;
-	u32 node_size;
-	int i, found;
-
-	nand_dbg_print(NAND_DBG_DEBUG, "%s, Line %d, Function: %s\n",
-			       __FILE__, __LINE__, __func__);
-
-	/*
-	 * If Level2 Cache table is empty, then it means either:
-	 * 1. This is the first time that the function called after FTL_init
-	 * or
-	 * 2. The Level2 Cache has just been flushed
-	 *
-	 * So, 'steal' some free blocks from NAND for L2 Cache using
-	 * by just mask them as discard in the block table
-	*/
-	if (list_empty(&cache_l2.table.list)) {
-		BUG_ON(cache_l2.cur_blk_idx != 0);
-		BUG_ON(cache_l2.cur_page_num!= 0);
-		BUG_ON(cache_l2.table.logical_blk_num != MAX_U32_VALUE);
-		if (FAIL == get_l2_cache_blks()) {
-			GLOB_FTL_Garbage_Collection();
-			if (FAIL == get_l2_cache_blks()) {
-				printk(KERN_ALERT "Fail to get L2 cache blks!\n");
-				return FAIL;
-			}
-		}
-	}
-
-	logical_blk_num = BLK_FROM_ADDR(logical_addr);
-	logical_page_num = PAGE_FROM_ADDR(logical_addr, logical_blk_num);
-	BUG_ON(logical_blk_num == MAX_U32_VALUE);
-
-	/* Write the cache item data into the current position of L2 Cache */
-#if CMD_DMA
-	/*
-	 * TODO
-	 */
-#else
-	if (FAIL == GLOB_LLD_Write_Page_Main(buf,
-		cache_l2.blk_array[cache_l2.cur_blk_idx],
-		cache_l2.cur_page_num, 1)) {
-		nand_dbg_print(NAND_DBG_WARN, "NAND Program fail in "
-			"%s, Line %d, new Bad Block %d generated!\n",
-			__FILE__, __LINE__,
-			cache_l2.blk_array[cache_l2.cur_blk_idx]);
-
-		/* TODO: tag the current block as bad and try again */
-
-		return FAIL;
-	}
-#endif
-
-	/* 
-	 * Update the L2 Cache table.
-	 *
-	 * First seaching in the table to see whether the logical block
-	 * has been mapped. If not, then kmalloc a new node for the
-	 * logical block, fill data, and then insert it to the list.
-	 * Otherwise, just update the mapped node directly.
-	 */
-	found = 0;
-	list_for_each(p, &cache_l2.table.list) {
-		pnd = list_entry(p, struct spectra_l2_cache_list, list);
-		if (pnd->logical_blk_num == logical_blk_num) {
-			pnd->pages_array[logical_page_num] =
-				(cache_l2.cur_blk_idx << 16) |
-				cache_l2.cur_page_num;
-			found = 1;
-			break;
-		}
-	}
-	if (!found) { /* Create new node for the logical block here */
-
-		/* The logical pages to physical pages map array is
-		 * located at the end of struct spectra_l2_cache_list.
-		 */ 
-		node_size = sizeof(struct spectra_l2_cache_list) +
-			sizeof(u32) * DeviceInfo.wPagesPerBlock;
-		pnd_new = kmalloc(node_size, GFP_ATOMIC);
-		if (!pnd_new) {
-			printk(KERN_ERR "Failed to kmalloc in %s Line %d\n",
-				__FILE__, __LINE__);
-			/* 
-			 * TODO: Need to flush all the L2 cache into NAND ASAP
-			 * since no memory available here
-			 */
-		}
-		pnd_new->logical_blk_num = logical_blk_num;
-		for (i = 0; i < DeviceInfo.wPagesPerBlock; i++)
-			pnd_new->pages_array[i] = MAX_U32_VALUE;
-		pnd_new->pages_array[logical_page_num] =
-			(cache_l2.cur_blk_idx << 16) | cache_l2.cur_page_num;
-		list_add(&pnd_new->list, &cache_l2.table.list);
-	}
-
-	/* Increasing the current position pointer of the L2 Cache */
-	cache_l2.cur_page_num++;
-	if (cache_l2.cur_page_num >= DeviceInfo.wPagesPerBlock) {
-		cache_l2.cur_blk_idx++;
-		if (cache_l2.cur_blk_idx >= BLK_NUM_FOR_L2_CACHE) {
-			/* The L2 Cache is full. Need to flush it now */
-			nand_dbg_print(NAND_DBG_WARN,
-				"L2 Cache is full, will start to flush it\n");
-			flush_l2_cache();
-		} else {
-			cache_l2.cur_page_num = 0;
-		}
-	}
-
-	return PASS;
-}
-
-/*
- * Search in the Level2 Cache table to find the cache item.
- * If find, read the data from the NAND page of L2 Cache,
- * Otherwise, return FAIL.
- */
-static int search_l2_cache(u8 *buf, u64 logical_addr)
-{
-	u32 logical_blk_num;
-	u16 logical_page_num;
-	struct list_head *p;
-	struct spectra_l2_cache_list *pnd;
-	u32 tmp = MAX_U32_VALUE;
-	u32 phy_blk;
-	u16 phy_page;
-	int ret = FAIL;
-
-	logical_blk_num = BLK_FROM_ADDR(logical_addr);
-	logical_page_num = PAGE_FROM_ADDR(logical_addr, logical_blk_num);
-
-	list_for_each(p, &cache_l2.table.list) {
-		pnd = list_entry(p, struct spectra_l2_cache_list, list);
-		if (pnd->logical_blk_num == logical_blk_num) {
-			tmp = pnd->pages_array[logical_page_num];
-			break;
-		}
-	}
-
-	if (tmp != MAX_U32_VALUE) { /* Found valid map */
-		phy_blk = cache_l2.blk_array[(tmp >> 16) & 0xFFFF];
-		phy_page = tmp & 0xFFFF;
-#if CMD_DMA
-		/* TODO */
-#else
-		ret = GLOB_LLD_Read_Page_Main(buf, phy_blk, phy_page, 1);
-#endif
-	}
-
-	return ret;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     FTL_Cache_Write_Page
-* Inputs:       Pointer to buffer, page address, cache block number
-* Outputs:      PASS=0 / FAIL=1
-* Description:  It writes the data in Cache Block
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-static void FTL_Cache_Write_Page(u8 *pData, u64 page_addr,
-				u8 cache_blk, u16 flag)
-{
-	u8 *pDest;
-	u64 addr;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		__FILE__, __LINE__, __func__);
-
-	addr = Cache.array[cache_blk].address;
-	pDest = Cache.array[cache_blk].buf;
-
-	pDest += (unsigned long)(page_addr - addr);
-	Cache.array[cache_blk].changed = SET;
-#if CMD_DMA
-#if RESTORE_CACHE_ON_CDMA_CHAIN_FAILURE
-	int_cache[ftl_cmd_cnt].item = cache_blk;
-	int_cache[ftl_cmd_cnt].cache.address =
-			Cache.array[cache_blk].address;
-	int_cache[ftl_cmd_cnt].cache.changed =
-			Cache.array[cache_blk].changed;
-#endif
-	GLOB_LLD_MemCopy_CMD(pDest, pData, DeviceInfo.wPageDataSize, flag);
-	ftl_cmd_cnt++;
-#else
-	memcpy(pDest, pData, DeviceInfo.wPageDataSize);
-#endif
-	if (Cache.array[cache_blk].use_cnt < MAX_WORD_VALUE)
-		Cache.array[cache_blk].use_cnt++;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     FTL_Cache_Write
-* Inputs:       none
-* Outputs:      PASS=0 / FAIL=1
-* Description:  It writes least frequently used Cache block to flash if it
-*               has been changed
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-static int FTL_Cache_Write(void)
-{
-	int i, bResult = PASS;
-	u16 bNO, least_count = 0xFFFF;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		__FILE__, __LINE__, __func__);
-
-	FTL_Calculate_LRU();
-
-	bNO = Cache.LRU;
-	nand_dbg_print(NAND_DBG_DEBUG, "FTL_Cache_Write: "
-		"Least used cache block is %d\n", bNO);
-
-	if (Cache.array[bNO].changed != SET)
-		return bResult;
-
-	nand_dbg_print(NAND_DBG_DEBUG, "FTL_Cache_Write: Cache"
-		" Block %d containing logical block %d is dirty\n",
-		bNO,
-		(u32)(Cache.array[bNO].address >>
-		DeviceInfo.nBitsInBlockDataSize));
-#if CMD_DMA
-#if RESTORE_CACHE_ON_CDMA_CHAIN_FAILURE
-	int_cache[ftl_cmd_cnt].item = bNO;
-	int_cache[ftl_cmd_cnt].cache.address =
-				Cache.array[bNO].address;
-	int_cache[ftl_cmd_cnt].cache.changed = CLEAR;
-#endif
-#endif
-	bResult = write_back_to_l2_cache(Cache.array[bNO].buf,
-			Cache.array[bNO].address);
-	if (bResult != ERR)
-		Cache.array[bNO].changed = CLEAR;
-
-	least_count = Cache.array[bNO].use_cnt;
-
-	for (i = 0; i < CACHE_ITEM_NUM; i++) {
-		if (i == bNO)
-			continue;
-		if (Cache.array[i].use_cnt > 0)
-			Cache.array[i].use_cnt -= least_count;
-	}
-
-	return bResult;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     FTL_Cache_Read
-* Inputs:       Page address
-* Outputs:      PASS=0 / FAIL=1
-* Description:  It reads the block from device in Cache Block
-*               Set the LRU count to 1
-*               Mark the Cache Block as clean
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-static int FTL_Cache_Read(u64 logical_addr)
-{
-	u64 item_addr, phy_addr;
-	u16 num;
-	int ret;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		__FILE__, __LINE__, __func__);
-
-	num = Cache.LRU; /* The LRU cache item will be overwritten */
-
-	item_addr = (u64)GLOB_u64_Div(logical_addr, Cache.cache_item_size) *
-		Cache.cache_item_size;
-	Cache.array[num].address = item_addr;
-	Cache.array[num].use_cnt = 1;
-	Cache.array[num].changed = CLEAR;
-
-#if CMD_DMA
-#if RESTORE_CACHE_ON_CDMA_CHAIN_FAILURE
-	int_cache[ftl_cmd_cnt].item = num;
-	int_cache[ftl_cmd_cnt].cache.address =
-			Cache.array[num].address;
-	int_cache[ftl_cmd_cnt].cache.changed =
-			Cache.array[num].changed;
-#endif
-#endif
-	/*
-	 * Search in L2 Cache. If hit, fill data into L1 Cache item buffer,
-	 * Otherwise, read it from NAND
-	 */
-	ret = search_l2_cache(Cache.array[num].buf, logical_addr);
-	if (PASS == ret) /* Hit in L2 Cache */
-		return ret;
-
-	/* Compute the physical start address of NAND device according to */
-	/* the logical start address of the cache item (LRU cache item) */
-	phy_addr = FTL_Get_Physical_Block_Addr(item_addr) +
-		GLOB_u64_Remainder(item_addr, 2);
-
-	return FTL_Cache_Read_All(Cache.array[num].buf, phy_addr);
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     FTL_Check_Block_Table
-* Inputs:       ?
-* Outputs:      PASS=0 / FAIL=1
-* Description:  It checks the correctness of each block table entry
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-static int FTL_Check_Block_Table(int wOldTable)
-{
-	u32 i;
-	int wResult = PASS;
-	u32 blk_idx;
-	u32 *pbt = (u32 *)g_pBlockTable;
-	u8 *pFlag = flag_check_blk_table;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	if (NULL != pFlag) {
-		memset(pFlag, FAIL, DeviceInfo.wDataBlockNum);
-		for (i = 0; i < DeviceInfo.wDataBlockNum; i++) {
-			blk_idx = (u32)(pbt[i] & (~BAD_BLOCK));
-
-			/*
-			 * 20081006/KBV - Changed to pFlag[i] reference
-			 * to avoid buffer overflow
-			 */
-
-			/*
-			 * 2008-10-20 Yunpeng Note: This change avoid
-			 * buffer overflow, but changed function of
-			 * the code, so it should be re-write later
-			 */
-			if ((blk_idx > DeviceInfo.wSpectraEndBlock) ||
-				PASS == pFlag[i]) {
-				wResult = FAIL;
-				break;
-			} else {
-				pFlag[i] = PASS;
-			}
-		}
-	}
-
-	return wResult;
-}
-
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     FTL_Write_Block_Table
-* Inputs:       flasg
-* Outputs:      0=Block Table was updated. No write done. 1=Block write needs to
-* happen. -1 Error
-* Description:  It writes the block table
-*               Block table always mapped to LBA 0 which inturn mapped
-*               to any physical block
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-static int FTL_Write_Block_Table(int wForce)
-{
-	u32 *pbt = (u32 *)g_pBlockTable;
-	int wSuccess = PASS;
-	u32 wTempBlockTableIndex;
-	u16 bt_pages, new_bt_offset;
-	u8 blockchangeoccured = 0;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-			       __FILE__, __LINE__, __func__);
-
-	bt_pages = FTL_Get_Block_Table_Flash_Size_Pages();
-
-	if (IN_PROGRESS_BLOCK_TABLE != g_cBlockTableStatus)
-		return 0;
-
-	if (PASS == wForce) {
-		g_wBlockTableOffset =
-			(u16)(DeviceInfo.wPagesPerBlock - bt_pages);
-#if CMD_DMA
-		p_BTableChangesDelta =
-			(struct BTableChangesDelta *)g_pBTDelta_Free;
-		g_pBTDelta_Free += sizeof(struct BTableChangesDelta);
-
-		p_BTableChangesDelta->ftl_cmd_cnt = ftl_cmd_cnt;
-		p_BTableChangesDelta->g_wBlockTableOffset =
-			g_wBlockTableOffset;
-		p_BTableChangesDelta->ValidFields = 0x01;
-#endif
-	}
-
-	nand_dbg_print(NAND_DBG_DEBUG,
-		"Inside FTL_Write_Block_Table: block %d Page:%d\n",
-		g_wBlockTableIndex, g_wBlockTableOffset);
-
-	do {
-		new_bt_offset = g_wBlockTableOffset + bt_pages + 1;
-		if ((0 == (new_bt_offset % DeviceInfo.wPagesPerBlock)) ||
-			(new_bt_offset > DeviceInfo.wPagesPerBlock) ||
-			(FAIL == wSuccess)) {
-			wTempBlockTableIndex = FTL_Replace_Block_Table();
-			if (BAD_BLOCK == wTempBlockTableIndex)
-				return ERR;
-			if (!blockchangeoccured) {
-				bt_block_changed = 1;
-				blockchangeoccured = 1;
-			}
-
-			g_wBlockTableIndex = wTempBlockTableIndex;
-			g_wBlockTableOffset = 0;
-			pbt[BLOCK_TABLE_INDEX] = g_wBlockTableIndex;
-#if CMD_DMA
-			p_BTableChangesDelta =
-				(struct BTableChangesDelta *)g_pBTDelta_Free;
-			g_pBTDelta_Free += sizeof(struct BTableChangesDelta);
-
-			p_BTableChangesDelta->ftl_cmd_cnt =
-				    ftl_cmd_cnt;
-			p_BTableChangesDelta->g_wBlockTableOffset =
-				    g_wBlockTableOffset;
-			p_BTableChangesDelta->g_wBlockTableIndex =
-				    g_wBlockTableIndex;
-			p_BTableChangesDelta->ValidFields = 0x03;
-
-			p_BTableChangesDelta =
-				(struct BTableChangesDelta *)g_pBTDelta_Free;
-			g_pBTDelta_Free +=
-				sizeof(struct BTableChangesDelta);
-
-			p_BTableChangesDelta->ftl_cmd_cnt =
-				    ftl_cmd_cnt;
-			p_BTableChangesDelta->BT_Index =
-				    BLOCK_TABLE_INDEX;
-			p_BTableChangesDelta->BT_Entry_Value =
-				    pbt[BLOCK_TABLE_INDEX];
-			p_BTableChangesDelta->ValidFields = 0x0C;
-#endif
-		}
-
-		wSuccess = FTL_Write_Block_Table_Data();
-		if (FAIL == wSuccess)
-			MARK_BLOCK_AS_BAD(pbt[BLOCK_TABLE_INDEX]);
-	} while (FAIL == wSuccess);
-
-	g_cBlockTableStatus = CURRENT_BLOCK_TABLE;
-
-	return 1;
-}
-
-static int  force_format_nand(void)
-{
-	u32 i;
-
-	/* Force erase the whole unprotected physical partiton of NAND */
-	printk(KERN_ALERT "Start to force erase whole NAND device ...\n");
-	printk(KERN_ALERT "From phyical block %d to %d\n",
-		DeviceInfo.wSpectraStartBlock, DeviceInfo.wSpectraEndBlock);
-	for (i = DeviceInfo.wSpectraStartBlock; i <= DeviceInfo.wSpectraEndBlock; i++) {
-		if (GLOB_LLD_Erase_Block(i))
-			printk(KERN_ERR "Failed to force erase NAND block %d\n", i);
-	}
-	printk(KERN_ALERT "Force Erase ends. Please reboot the system ...\n");
-	while(1);
-
-	return PASS;
-}
-
-int GLOB_FTL_Flash_Format(void)
-{
-	//return FTL_Format_Flash(1);
-	return force_format_nand();
-
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     FTL_Search_Block_Table_IN_Block
-* Inputs:       Block Number
-*               Pointer to page
-* Outputs:      PASS / FAIL
-*               Page contatining the block table
-* Description:  It searches the block table in the block
-*               passed as an argument.
-*
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-static int FTL_Search_Block_Table_IN_Block(u32 BT_Block,
-						u8 BT_Tag, u16 *Page)
-{
-	u16 i, j, k;
-	u16 Result = PASS;
-	u16 Last_IPF = 0;
-	u8  BT_Found = 0;
-	u8 *tagarray;
-	u8 *tempbuf = tmp_buf_search_bt_in_block;
-	u8 *pSpareBuf = spare_buf_search_bt_in_block;
-	u8 *pSpareBufBTLastPage = spare_buf_bt_search_bt_in_block;
-	u8 bt_flag_last_page = 0xFF;
-	u8 search_in_previous_pages = 0;
-	u16 bt_pages;
-
-	nand_dbg_print(NAND_DBG_DEBUG, "%s, Line %d, Function: %s\n",
-			       __FILE__, __LINE__, __func__);
-
-	nand_dbg_print(NAND_DBG_DEBUG,
-		       "Searching block table in %u block\n",
-		       (unsigned int)BT_Block);
-
-	bt_pages = FTL_Get_Block_Table_Flash_Size_Pages();
-
-	for (i = bt_pages; i < DeviceInfo.wPagesPerBlock;
-				i += (bt_pages + 1)) {
-		nand_dbg_print(NAND_DBG_DEBUG,
-			       "Searching last IPF: %d\n", i);
-		Result = GLOB_LLD_Read_Page_Main_Polling(tempbuf,
-							BT_Block, i, 1);
-
-		if (0 == memcmp(tempbuf, g_pIPF, DeviceInfo.wPageDataSize)) {
-			if ((i + bt_pages + 1) < DeviceInfo.wPagesPerBlock) {
-				continue;
-			} else {
-				search_in_previous_pages = 1;
-				Last_IPF = i;
-			}
-		}
-
-		if (!search_in_previous_pages) {
-			if (i != bt_pages) {
-				i -= (bt_pages + 1);
-				Last_IPF = i;
-			}
-		}
-
-		if (0 == Last_IPF)
-			break;
-
-		if (!search_in_previous_pages) {
-			i = i + 1;
-			nand_dbg_print(NAND_DBG_DEBUG,
-				"Reading the spare area of Block %u Page %u",
-				(unsigned int)BT_Block, i);
-			Result = GLOB_LLD_Read_Page_Spare(pSpareBuf,
-							BT_Block, i, 1);
-			nand_dbg_print(NAND_DBG_DEBUG,
-				"Reading the spare area of Block %u Page %u",
-				(unsigned int)BT_Block, i + bt_pages - 1);
-			Result = GLOB_LLD_Read_Page_Spare(pSpareBufBTLastPage,
-				BT_Block, i + bt_pages - 1, 1);
-
-			k = 0;
-			j = FTL_Extract_Block_Table_Tag(pSpareBuf, &tagarray);
-			if (j) {
-				for (; k < j; k++) {
-					if (tagarray[k] == BT_Tag)
-						break;
-				}
-			}
-
-			if (k < j)
-				bt_flag = tagarray[k];
-			else
-				Result = FAIL;
-
-			if (Result == PASS) {
-				k = 0;
-				j = FTL_Extract_Block_Table_Tag(
-					pSpareBufBTLastPage, &tagarray);
-				if (j) {
-					for (; k < j; k++) {
-						if (tagarray[k] == BT_Tag)
-							break;
-					}
-				}
-
-				if (k < j)
-					bt_flag_last_page = tagarray[k];
-				else
-					Result = FAIL;
-
-				if (Result == PASS) {
-					if (bt_flag == bt_flag_last_page) {
-						nand_dbg_print(NAND_DBG_DEBUG,
-							"Block table is found"
-							" in page after IPF "
-							"at block %d "
-							"page %d\n",
-							(int)BT_Block, i);
-						BT_Found = 1;
-						*Page  = i;
-						g_cBlockTableStatus =
-							CURRENT_BLOCK_TABLE;
-						break;
-					} else {
-						Result = FAIL;
-					}
-				}
-			}
-		}
-
-		if (search_in_previous_pages)
-			i = i - bt_pages;
-		else
-			i = i - (bt_pages + 1);
-
-		Result = PASS;
-
-		nand_dbg_print(NAND_DBG_DEBUG,
-			"Reading the spare area of Block %d Page %d",
-			(int)BT_Block, i);
-
-		Result = GLOB_LLD_Read_Page_Spare(pSpareBuf, BT_Block, i, 1);
-		nand_dbg_print(NAND_DBG_DEBUG,
-			"Reading the spare area of Block %u Page %u",
-			(unsigned int)BT_Block, i + bt_pages - 1);
-
-		Result = GLOB_LLD_Read_Page_Spare(pSpareBufBTLastPage,
-					BT_Block, i + bt_pages - 1, 1);
-
-		k = 0;
-		j = FTL_Extract_Block_Table_Tag(pSpareBuf, &tagarray);
-		if (j) {
-			for (; k < j; k++) {
-				if (tagarray[k] == BT_Tag)
-					break;
-			}
-		}
-
-		if (k < j)
-			bt_flag = tagarray[k];
-		else
-			Result = FAIL;
-
-		if (Result == PASS) {
-			k = 0;
-			j = FTL_Extract_Block_Table_Tag(pSpareBufBTLastPage,
-						&tagarray);
-			if (j) {
-				for (; k < j; k++) {
-					if (tagarray[k] == BT_Tag)
-						break;
-				}
-			}
-
-			if (k < j) {
-				bt_flag_last_page = tagarray[k];
-			} else {
-				Result = FAIL;
-				break;
-			}
-
-			if (Result == PASS) {
-				if (bt_flag == bt_flag_last_page) {
-					nand_dbg_print(NAND_DBG_DEBUG,
-						"Block table is found "
-						"in page prior to IPF "
-						"at block %u page %d\n",
-						(unsigned int)BT_Block, i);
-					BT_Found = 1;
-					*Page  = i;
-					g_cBlockTableStatus =
-						IN_PROGRESS_BLOCK_TABLE;
-					break;
-				} else {
-					Result = FAIL;
-					break;
-				}
-			}
-		}
-	}
-
-	if (Result == FAIL) {
-		if ((Last_IPF > bt_pages) && (i < Last_IPF) && (!BT_Found)) {
-			BT_Found = 1;
-			*Page = i - (bt_pages + 1);
-		}
-		if ((Last_IPF == bt_pages) && (i < Last_IPF) && (!BT_Found))
-			goto func_return;
-	}
-
-	if (Last_IPF == 0) {
-		i = 0;
-		Result = PASS;
-		nand_dbg_print(NAND_DBG_DEBUG, "Reading the spare area of "
-			"Block %u Page %u", (unsigned int)BT_Block, i);
-
-		Result = GLOB_LLD_Read_Page_Spare(pSpareBuf, BT_Block, i, 1);
-		nand_dbg_print(NAND_DBG_DEBUG,
-			"Reading the spare area of Block %u Page %u",
-			(unsigned int)BT_Block, i + bt_pages - 1);
-		Result = GLOB_LLD_Read_Page_Spare(pSpareBufBTLastPage,
-					BT_Block, i + bt_pages - 1, 1);
-
-		k = 0;
-		j = FTL_Extract_Block_Table_Tag(pSpareBuf, &tagarray);
-		if (j) {
-			for (; k < j; k++) {
-				if (tagarray[k] == BT_Tag)
-					break;
-			}
-		}
-
-		if (k < j)
-			bt_flag = tagarray[k];
-		else
-			Result = FAIL;
-
-		if (Result == PASS) {
-			k = 0;
-			j = FTL_Extract_Block_Table_Tag(pSpareBufBTLastPage,
-							&tagarray);
-			if (j) {
-				for (; k < j; k++) {
-					if (tagarray[k] == BT_Tag)
-						break;
-				}
-			}
-
-			if (k < j)
-				bt_flag_last_page = tagarray[k];
-			else
-				Result = FAIL;
-
-			if (Result == PASS) {
-				if (bt_flag == bt_flag_last_page) {
-					nand_dbg_print(NAND_DBG_DEBUG,
-						"Block table is found "
-						"in page after IPF at "
-						"block %u page %u\n",
-						(unsigned int)BT_Block,
-						(unsigned int)i);
-					BT_Found = 1;
-					*Page  = i;
-					g_cBlockTableStatus =
-						CURRENT_BLOCK_TABLE;
-					goto func_return;
-				} else {
-					Result = FAIL;
-				}
-			}
-		}
-
-		if (Result == FAIL)
-			goto func_return;
-	}
-func_return:
-	return Result;
-}
-
-u8 *get_blk_table_start_addr(void)
-{
-	return g_pBlockTable;
-}
-
-unsigned long get_blk_table_len(void)
-{
-	return DeviceInfo.wDataBlockNum * sizeof(u32);
-}
-
-u8 *get_wear_leveling_table_start_addr(void)
-{
-	return g_pWearCounter;
-}
-
-unsigned long get_wear_leveling_table_len(void)
-{
-	return DeviceInfo.wDataBlockNum * sizeof(u8);
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     FTL_Read_Block_Table
-* Inputs:       none
-* Outputs:      PASS / FAIL
-* Description:  read the flash spare area and find a block containing the
-*               most recent block table(having largest block_table_counter).
-*               Find the last written Block table in this block.
-*               Check the correctness of Block Table
-*               If CDMA is enabled, this function is called in
-*               polling mode.
-*               We don't need to store changes in Block table in this
-*               function as it is called only at initialization
-*
-*               Note: Currently this function is called at initialization
-*               before any read/erase/write command issued to flash so,
-*               there is no need to wait for CDMA list to complete as of now
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-static int FTL_Read_Block_Table(void)
-{
-	u16 i = 0;
-	int k, j;
-	u8 *tempBuf, *tagarray;
-	int wResult = FAIL;
-	int status = FAIL;
-	u8 block_table_found = 0;
-	int search_result;
-	u32 Block;
-	u16 Page = 0;
-	u16 PageCount;
-	u16 bt_pages;
-	int wBytesCopied = 0, tempvar;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-			       __FILE__, __LINE__, __func__);
-
-	tempBuf = tmp_buf1_read_blk_table;
-	bt_pages = FTL_Get_Block_Table_Flash_Size_Pages();
-
-	for (j = DeviceInfo.wSpectraStartBlock;
-		j <= (int)DeviceInfo.wSpectraEndBlock;
-			j++) {
-		status = GLOB_LLD_Read_Page_Spare(tempBuf, j, 0, 1);
-		k = 0;
-		i = FTL_Extract_Block_Table_Tag(tempBuf, &tagarray);
-		if (i) {
-			status  = GLOB_LLD_Read_Page_Main_Polling(tempBuf,
-								j, 0, 1);
-			for (; k < i; k++) {
-				if (tagarray[k] == tempBuf[3])
-					break;
-			}
-		}
-
-		if (k < i)
-			k = tagarray[k];
-		else
-			continue;
-
-		nand_dbg_print(NAND_DBG_DEBUG,
-				"Block table is contained in Block %d %d\n",
-				       (unsigned int)j, (unsigned int)k);
-
-		if (g_pBTBlocks[k-FIRST_BT_ID] == BTBLOCK_INVAL) {
-			g_pBTBlocks[k-FIRST_BT_ID] = j;
-			block_table_found = 1;
-		} else {
-			printk(KERN_ERR "FTL_Read_Block_Table -"
-				"This should never happens. "
-				"Two block table have same counter %u!\n", k);
-		}
-	}
-
-	if (block_table_found) {
-		if (g_pBTBlocks[FIRST_BT_ID - FIRST_BT_ID] != BTBLOCK_INVAL &&
-		g_pBTBlocks[LAST_BT_ID - FIRST_BT_ID] != BTBLOCK_INVAL) {
-			j = LAST_BT_ID;
-			while ((j > FIRST_BT_ID) &&
-			(g_pBTBlocks[j - FIRST_BT_ID] != BTBLOCK_INVAL))
-				j--;
-			if (j == FIRST_BT_ID) {
-				j = LAST_BT_ID;
-				last_erased = LAST_BT_ID;
-			} else {
-				last_erased = (u8)j + 1;
-				while ((j > FIRST_BT_ID) && (BTBLOCK_INVAL ==
-					g_pBTBlocks[j - FIRST_BT_ID]))
-					j--;
-			}
-		} else {
-			j = FIRST_BT_ID;
-			while (g_pBTBlocks[j - FIRST_BT_ID] == BTBLOCK_INVAL)
-				j++;
-			last_erased = (u8)j;
-			while ((j < LAST_BT_ID) && (BTBLOCK_INVAL !=
-				g_pBTBlocks[j - FIRST_BT_ID]))
-				j++;
-			if (g_pBTBlocks[j-FIRST_BT_ID] == BTBLOCK_INVAL)
-				j--;
-		}
-
-		if (last_erased > j)
-			j += (1 + LAST_BT_ID - FIRST_BT_ID);
-
-		for (; (j >= last_erased) && (FAIL == wResult); j--) {
-			i = (j - FIRST_BT_ID) %
-				(1 + LAST_BT_ID - FIRST_BT_ID);
-			search_result =
-			FTL_Search_Block_Table_IN_Block(g_pBTBlocks[i],
-						i + FIRST_BT_ID, &Page);
-			if (g_cBlockTableStatus == IN_PROGRESS_BLOCK_TABLE)
-				block_table_found = 0;
-
-			while ((search_result == PASS) && (FAIL == wResult)) {
-				nand_dbg_print(NAND_DBG_DEBUG,
-					"FTL_Read_Block_Table:"
-					"Block: %u Page: %u "
-					"contains block table\n",
-					(unsigned int)g_pBTBlocks[i],
-					(unsigned int)Page);
-
-				tempBuf = tmp_buf2_read_blk_table;
-
-				for (k = 0; k < bt_pages; k++) {
-					Block = g_pBTBlocks[i];
-					PageCount = 1;
-
-					status  =
-					GLOB_LLD_Read_Page_Main_Polling(
-					tempBuf, Block, Page, PageCount);
-
-					tempvar = k ? 0 : 4;
-
-					wBytesCopied +=
-					FTL_Copy_Block_Table_From_Flash(
-					tempBuf + tempvar,
-					DeviceInfo.wPageDataSize - tempvar,
-					wBytesCopied);
-
-					Page++;
-				}
-
-				wResult = FTL_Check_Block_Table(FAIL);
-				if (FAIL == wResult) {
-					block_table_found = 0;
-					if (Page > bt_pages)
-						Page -= ((bt_pages<<1) + 1);
-					else
-						search_result = FAIL;
-				}
-			}
-		}
-	}
-
-	if (PASS == wResult) {
-		if (!block_table_found)
-			FTL_Execute_SPL_Recovery();
-
-		if (g_cBlockTableStatus == IN_PROGRESS_BLOCK_TABLE)
-			g_wBlockTableOffset = (u16)Page + 1;
-		else
-			g_wBlockTableOffset = (u16)Page - bt_pages;
-
-		g_wBlockTableIndex = (u32)g_pBTBlocks[i];
-
-#if CMD_DMA
-		if (DeviceInfo.MLCDevice)
-			memcpy(g_pBTStartingCopy, g_pBlockTable,
-				DeviceInfo.wDataBlockNum * sizeof(u32)
-				+ DeviceInfo.wDataBlockNum * sizeof(u8)
-				+ DeviceInfo.wDataBlockNum * sizeof(u16));
-		else
-			memcpy(g_pBTStartingCopy, g_pBlockTable,
-				DeviceInfo.wDataBlockNum * sizeof(u32)
-				+ DeviceInfo.wDataBlockNum * sizeof(u8));
-#endif
-	}
-
-	if (FAIL == wResult)
-		printk(KERN_ERR "Yunpeng - "
-		"Can not find valid spectra block table!\n");
-
-#if AUTO_FORMAT_FLASH
-	if (FAIL == wResult) {
-		nand_dbg_print(NAND_DBG_DEBUG, "doing auto-format\n");
-		wResult = FTL_Format_Flash(0);
-	}
-#endif
-
-	return wResult;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     FTL_Get_Page_Num
-* Inputs:       Size in bytes
-* Outputs:      Size in pages
-* Description:  It calculates the pages required for the length passed
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-static u32 FTL_Get_Page_Num(u64 length)
-{
-	return (u32)((length >> DeviceInfo.nBitsInPageDataSize) +
-		(GLOB_u64_Remainder(length , 1) > 0 ? 1 : 0));
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     FTL_Get_Physical_Block_Addr
-* Inputs:       Block Address (byte format)
-* Outputs:      Physical address of the block.
-* Description:  It translates LBA to PBA by returning address stored
-*               at the LBA location in the block table
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-static u64 FTL_Get_Physical_Block_Addr(u64 logical_addr)
-{
-	u32 *pbt;
-	u64 physical_addr;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		__FILE__, __LINE__, __func__);
-
-	pbt = (u32 *)g_pBlockTable;
-	physical_addr = (u64) DeviceInfo.wBlockDataSize *
-		(pbt[BLK_FROM_ADDR(logical_addr)] & (~BAD_BLOCK));
-
-	return physical_addr;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     FTL_Get_Block_Index
-* Inputs:       Physical Block no.
-* Outputs:      Logical block no. /BAD_BLOCK
-* Description:  It returns the logical block no. for the PBA passed
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-static u32 FTL_Get_Block_Index(u32 wBlockNum)
-{
-	u32 *pbt = (u32 *)g_pBlockTable;
-	u32 i;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	for (i = 0; i < DeviceInfo.wDataBlockNum; i++)
-		if (wBlockNum == (pbt[i] & (~BAD_BLOCK)))
-			return i;
-
-	return BAD_BLOCK;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     GLOB_FTL_Wear_Leveling
-* Inputs:       none
-* Outputs:      PASS=0
-* Description:  This is static wear leveling (done by explicit call)
-*               do complete static wear leveling
-*               do complete garbage collection
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-int GLOB_FTL_Wear_Leveling(void)
-{
-	nand_dbg_print(NAND_DBG_WARN, "%s, Line %d, Function: %s\n",
-		__FILE__, __LINE__, __func__);
-
-	FTL_Static_Wear_Leveling();
-	GLOB_FTL_Garbage_Collection();
-
-	return PASS;
-}
-
-static void find_least_most_worn(u8 *chg,
-	u32 *least_idx, u8 *least_cnt,
-	u32 *most_idx, u8 *most_cnt)
-{
-	u32 *pbt = (u32 *)g_pBlockTable;
-	u32 idx;
-	u8 cnt;
-	int i;
-
-	for (i = BLOCK_TABLE_INDEX + 1; i < DeviceInfo.wDataBlockNum; i++) {
-		if (IS_BAD_BLOCK(i) || PASS == chg[i])
-			continue;
-
-		idx = (u32) ((~BAD_BLOCK) & pbt[i]);
-		cnt = g_pWearCounter[idx - DeviceInfo.wSpectraStartBlock];
-
-		if (IS_SPARE_BLOCK(i)) {
-			if (cnt > *most_cnt) {
-				*most_cnt = cnt;
-				*most_idx = idx;
-			}
-		}
-
-		if (IS_DATA_BLOCK(i)) {
-			if (cnt < *least_cnt) {
-				*least_cnt = cnt;
-				*least_idx = idx;
-			}
-		}
-
-		if (PASS == chg[*most_idx] || PASS == chg[*least_idx]) {
-			debug_boundary_error(*most_idx,
-				DeviceInfo.wDataBlockNum, 0);
-			debug_boundary_error(*least_idx,
-				DeviceInfo.wDataBlockNum, 0);
-			continue;
-		}
-	}
-}
-
-static int move_blks_for_wear_leveling(u8 *chg,
-	u32 *least_idx, u32 *rep_blk_num, int *result)
-{
-	u32 *pbt = (u32 *)g_pBlockTable;
-	u32 rep_blk;
-	int j, ret_cp_blk, ret_erase;
-	int ret = PASS;
-
-	chg[*least_idx] = PASS;
-	debug_boundary_error(*least_idx, DeviceInfo.wDataBlockNum, 0);
-
-	rep_blk = FTL_Replace_MWBlock();
-	if (rep_blk != BAD_BLOCK) {
-		nand_dbg_print(NAND_DBG_DEBUG,
-			"More than two spare blocks exist so do it\n");
-		nand_dbg_print(NAND_DBG_DEBUG, "Block Replaced is %d\n",
-				rep_blk);
-
-		chg[rep_blk] = PASS;
-
-		if (IN_PROGRESS_BLOCK_TABLE != g_cBlockTableStatus) {
-			g_cBlockTableStatus = IN_PROGRESS_BLOCK_TABLE;
-			FTL_Write_IN_Progress_Block_Table_Page();
-		}
-
-		for (j = 0; j < RETRY_TIMES; j++) {
-			ret_cp_blk = FTL_Copy_Block((u64)(*least_idx) *
-				DeviceInfo.wBlockDataSize,
-				(u64)rep_blk * DeviceInfo.wBlockDataSize);
-			if (FAIL == ret_cp_blk) {
-				ret_erase = GLOB_FTL_Block_Erase((u64)rep_blk
-					* DeviceInfo.wBlockDataSize);
-				if (FAIL == ret_erase)
-					MARK_BLOCK_AS_BAD(pbt[rep_blk]);
-			} else {
-				nand_dbg_print(NAND_DBG_DEBUG,
-					"FTL_Copy_Block == OK\n");
-				break;
-			}
-		}
-
-		if (j < RETRY_TIMES) {
-			u32 tmp;
-			u32 old_idx = FTL_Get_Block_Index(*least_idx);
-			u32 rep_idx = FTL_Get_Block_Index(rep_blk);
-			tmp = (u32)(DISCARD_BLOCK | pbt[old_idx]);
-			pbt[old_idx] = (u32)((~SPARE_BLOCK) &
-							pbt[rep_idx]);
-			pbt[rep_idx] = tmp;
-#if CMD_DMA
-			p_BTableChangesDelta = (struct BTableChangesDelta *)
-						g_pBTDelta_Free;
-			g_pBTDelta_Free += sizeof(struct BTableChangesDelta);
-			p_BTableChangesDelta->ftl_cmd_cnt =
-						ftl_cmd_cnt;
-			p_BTableChangesDelta->BT_Index = old_idx;
-			p_BTableChangesDelta->BT_Entry_Value = pbt[old_idx];
-			p_BTableChangesDelta->ValidFields = 0x0C;
-
-			p_BTableChangesDelta = (struct BTableChangesDelta *)
-						g_pBTDelta_Free;
-			g_pBTDelta_Free += sizeof(struct BTableChangesDelta);
-
-			p_BTableChangesDelta->ftl_cmd_cnt =
-						ftl_cmd_cnt;
-			p_BTableChangesDelta->BT_Index = rep_idx;
-			p_BTableChangesDelta->BT_Entry_Value = pbt[rep_idx];
-			p_BTableChangesDelta->ValidFields = 0x0C;
-#endif
-		} else {
-			pbt[FTL_Get_Block_Index(rep_blk)] |= BAD_BLOCK;
-#if CMD_DMA
-			p_BTableChangesDelta = (struct BTableChangesDelta *)
-						g_pBTDelta_Free;
-			g_pBTDelta_Free += sizeof(struct BTableChangesDelta);
-
-			p_BTableChangesDelta->ftl_cmd_cnt =
-						ftl_cmd_cnt;
-			p_BTableChangesDelta->BT_Index =
-					FTL_Get_Block_Index(rep_blk);
-			p_BTableChangesDelta->BT_Entry_Value =
-					pbt[FTL_Get_Block_Index(rep_blk)];
-			p_BTableChangesDelta->ValidFields = 0x0C;
-#endif
-			*result = FAIL;
-			ret = FAIL;
-		}
-
-		if (((*rep_blk_num)++) > WEAR_LEVELING_BLOCK_NUM)
-			ret = FAIL;
-	} else {
-		printk(KERN_ERR "Less than 3 spare blocks exist so quit\n");
-		ret = FAIL;
-	}
-
-	return ret;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     FTL_Static_Wear_Leveling
-* Inputs:       none
-* Outputs:      PASS=0 / FAIL=1
-* Description:  This is static wear leveling (done by explicit call)
-*               search for most&least used
-*               if difference < GATE:
-*                   update the block table with exhange
-*                   mark block table in flash as IN_PROGRESS
-*                   copy flash block
-*               the caller should handle GC clean up after calling this function
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-int FTL_Static_Wear_Leveling(void)
-{
-	u8 most_worn_cnt;
-	u8 least_worn_cnt;
-	u32 most_worn_idx;
-	u32 least_worn_idx;
-	int result = PASS;
-	int go_on = PASS;
-	u32 replaced_blks = 0;
-	u8 *chang_flag = flags_static_wear_leveling;
-
-	nand_dbg_print(NAND_DBG_WARN, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	if (!chang_flag)
-		return FAIL;
-
-	memset(chang_flag, FAIL, DeviceInfo.wDataBlockNum);
-	while (go_on == PASS) {
-		nand_dbg_print(NAND_DBG_DEBUG,
-			"starting static wear leveling\n");
-		most_worn_cnt = 0;
-		least_worn_cnt = 0xFF;
-		least_worn_idx = BLOCK_TABLE_INDEX;
-		most_worn_idx = BLOCK_TABLE_INDEX;
-
-		find_least_most_worn(chang_flag, &least_worn_idx,
-			&least_worn_cnt, &most_worn_idx, &most_worn_cnt);
-
-		nand_dbg_print(NAND_DBG_DEBUG,
-			"Used and least worn is block %u, whos count is %u\n",
-			(unsigned int)least_worn_idx,
-			(unsigned int)least_worn_cnt);
-
-		nand_dbg_print(NAND_DBG_DEBUG,
-			"Free and  most worn is block %u, whos count is %u\n",
-			(unsigned int)most_worn_idx,
-			(unsigned int)most_worn_cnt);
-
-		if ((most_worn_cnt > least_worn_cnt) &&
-			(most_worn_cnt - least_worn_cnt > WEAR_LEVELING_GATE))
-			go_on = move_blks_for_wear_leveling(chang_flag,
-				&least_worn_idx, &replaced_blks, &result);
-		else
-			go_on = FAIL;
-	}
-
-	return result;
-}
-
-#if CMD_DMA
-static int do_garbage_collection(u32 discard_cnt)
-{
-	u32 *pbt = (u32 *)g_pBlockTable;
-	u32 pba;
-	u8 bt_block_erased = 0;
-	int i, cnt, ret = FAIL;
-	u64 addr;
-
-	i = 0;
-	while ((i < DeviceInfo.wDataBlockNum) && (discard_cnt > 0) &&
-			((ftl_cmd_cnt + 28) < 256)) {
-		if (((pbt[i] & BAD_BLOCK) != BAD_BLOCK) &&
-				(pbt[i] & DISCARD_BLOCK)) {
-			if (IN_PROGRESS_BLOCK_TABLE != g_cBlockTableStatus) {
-				g_cBlockTableStatus = IN_PROGRESS_BLOCK_TABLE;
-				FTL_Write_IN_Progress_Block_Table_Page();
-			}
-
-			addr = FTL_Get_Physical_Block_Addr((u64)i *
-						DeviceInfo.wBlockDataSize);
-			pba = BLK_FROM_ADDR(addr);
-
-			for (cnt = FIRST_BT_ID; cnt <= LAST_BT_ID; cnt++) {
-				if (pba == g_pBTBlocks[cnt - FIRST_BT_ID]) {
-					nand_dbg_print(NAND_DBG_DEBUG,
-						"GC will erase BT block %u\n",
-						(unsigned int)pba);
-					discard_cnt--;
-					i++;
-					bt_block_erased = 1;
-					break;
-				}
-			}
-
-			if (bt_block_erased) {
-				bt_block_erased = 0;
-				continue;
-			}
-
-			addr = FTL_Get_Physical_Block_Addr((u64)i *
-						DeviceInfo.wBlockDataSize);
-
-			if (PASS == GLOB_FTL_Block_Erase(addr)) {
-				pbt[i] &= (u32)(~DISCARD_BLOCK);
-				pbt[i] |= (u32)(SPARE_BLOCK);
-				p_BTableChangesDelta =
-					(struct BTableChangesDelta *)
-					g_pBTDelta_Free;
-				g_pBTDelta_Free +=
-					sizeof(struct BTableChangesDelta);
-				p_BTableChangesDelta->ftl_cmd_cnt =
-					ftl_cmd_cnt - 1;
-				p_BTableChangesDelta->BT_Index = i;
-				p_BTableChangesDelta->BT_Entry_Value = pbt[i];
-				p_BTableChangesDelta->ValidFields = 0x0C;
-				discard_cnt--;
-				ret = PASS;
-			} else {
-				MARK_BLOCK_AS_BAD(pbt[i]);
-			}
-		}
-
-		i++;
-	}
-
-	return ret;
-}
-
-#else
-static int do_garbage_collection(u32 discard_cnt)
-{
-	u32 *pbt = (u32 *)g_pBlockTable;
-	u32 pba;
-	u8 bt_block_erased = 0;
-	int i, cnt, ret = FAIL;
-	u64 addr;
-
-	i = 0;
-	while ((i < DeviceInfo.wDataBlockNum) && (discard_cnt > 0)) {
-		if (((pbt[i] & BAD_BLOCK) != BAD_BLOCK) &&
-				(pbt[i] & DISCARD_BLOCK)) {
-			if (IN_PROGRESS_BLOCK_TABLE != g_cBlockTableStatus) {
-				g_cBlockTableStatus = IN_PROGRESS_BLOCK_TABLE;
-				FTL_Write_IN_Progress_Block_Table_Page();
-			}
-
-			addr = FTL_Get_Physical_Block_Addr((u64)i *
-						DeviceInfo.wBlockDataSize);
-			pba = BLK_FROM_ADDR(addr);
-
-			for (cnt = FIRST_BT_ID; cnt <= LAST_BT_ID; cnt++) {
-				if (pba == g_pBTBlocks[cnt - FIRST_BT_ID]) {
-					nand_dbg_print(NAND_DBG_DEBUG,
-						"GC will erase BT block %d\n",
-						pba);
-					discard_cnt--;
-					i++;
-					bt_block_erased = 1;
-					break;
-				}
-			}
-
-			if (bt_block_erased) {
-				bt_block_erased = 0;
-				continue;
-			}
-
-			/* If the discard block is L2 cache block, then just skip it */
-			for (cnt = 0; cnt < BLK_NUM_FOR_L2_CACHE; cnt++) {
-				if (cache_l2.blk_array[cnt] == pba) {
-					nand_dbg_print(NAND_DBG_DEBUG,
-						"GC will erase L2 cache blk %d\n",
-						pba);
-					break;
-				}
-			}
-			if (cnt < BLK_NUM_FOR_L2_CACHE) { /* Skip it */
-				discard_cnt--;
-				i++;
-				continue;
-			}
-
-			addr = FTL_Get_Physical_Block_Addr((u64)i *
-						DeviceInfo.wBlockDataSize);
-
-			if (PASS == GLOB_FTL_Block_Erase(addr)) {
-				pbt[i] &= (u32)(~DISCARD_BLOCK);
-				pbt[i] |= (u32)(SPARE_BLOCK);
-				discard_cnt--;
-				ret = PASS;
-			} else {
-				MARK_BLOCK_AS_BAD(pbt[i]);
-			}
-		}
-
-		i++;
-	}
-
-	return ret;
-}
-#endif
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     GLOB_FTL_Garbage_Collection
-* Inputs:       none
-* Outputs:      PASS / FAIL (returns the number of un-erased blocks
-* Description:  search the block table for all discarded blocks to erase
-*               for each discarded block:
-*                   set the flash block to IN_PROGRESS
-*                   erase the block
-*                   update the block table
-*                   write the block table to flash
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-int GLOB_FTL_Garbage_Collection(void)
-{
-	u32 i;
-	u32 wDiscard = 0;
-	int wResult = FAIL;
-	u32 *pbt = (u32 *)g_pBlockTable;
-
-	nand_dbg_print(NAND_DBG_WARN, "%s, Line %d, Function: %s\n",
-			       __FILE__, __LINE__, __func__);
-
-	if (GC_Called) {
-		printk(KERN_ALERT "GLOB_FTL_Garbage_Collection() "
-			"has been re-entered! Exit.\n");
-		return PASS;
-	}
-
-	GC_Called = 1;
-
-	GLOB_FTL_BT_Garbage_Collection();
-
-	for (i = 0; i < DeviceInfo.wDataBlockNum; i++) {
-		if (IS_DISCARDED_BLOCK(i))
-			wDiscard++;
-	}
-
-	if (wDiscard <= 0) {
-		GC_Called = 0;
-		return wResult;
-	}
-
-	nand_dbg_print(NAND_DBG_DEBUG,
-		"Found %d discarded blocks\n", wDiscard);
-
-	FTL_Write_Block_Table(FAIL);
-
-	wResult = do_garbage_collection(wDiscard);
-
-	FTL_Write_Block_Table(FAIL);
-
-	GC_Called = 0;
-
-	return wResult;
-}
-
-
-#if CMD_DMA
-static int do_bt_garbage_collection(void)
-{
-	u32 pba, lba;
-	u32 *pbt = (u32 *)g_pBlockTable;
-	u32 *pBTBlocksNode = (u32 *)g_pBTBlocks;
-	u64 addr;
-	int i, ret = FAIL;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-			       __FILE__, __LINE__, __func__);
-
-	if (BT_GC_Called)
-		return PASS;
-
-	BT_GC_Called = 1;
-
-	for (i = last_erased; (i <= LAST_BT_ID) &&
-		(g_pBTBlocks[((i + 2) % (1 + LAST_BT_ID - FIRST_BT_ID)) +
-		FIRST_BT_ID - FIRST_BT_ID] != BTBLOCK_INVAL) &&
-		((ftl_cmd_cnt + 28)) < 256; i++) {
-		pba = pBTBlocksNode[i - FIRST_BT_ID];
-		lba = FTL_Get_Block_Index(pba);
-		nand_dbg_print(NAND_DBG_DEBUG,
-			"do_bt_garbage_collection: pba %d, lba %d\n",
-			pba, lba);
-		nand_dbg_print(NAND_DBG_DEBUG,
-			"Block Table Entry: %d", pbt[lba]);
-
-		if (((pbt[lba] & BAD_BLOCK) != BAD_BLOCK) &&
-			(pbt[lba] & DISCARD_BLOCK)) {
-			nand_dbg_print(NAND_DBG_DEBUG,
-				"do_bt_garbage_collection_cdma: "
-				"Erasing Block tables present in block %d\n",
-				pba);
-			addr = FTL_Get_Physical_Block_Addr((u64)lba *
-						DeviceInfo.wBlockDataSize);
-			if (PASS == GLOB_FTL_Block_Erase(addr)) {
-				pbt[lba] &= (u32)(~DISCARD_BLOCK);
-				pbt[lba] |= (u32)(SPARE_BLOCK);
-
-				p_BTableChangesDelta =
-					(struct BTableChangesDelta *)
-					g_pBTDelta_Free;
-				g_pBTDelta_Free +=
-					sizeof(struct BTableChangesDelta);
-
-				p_BTableChangesDelta->ftl_cmd_cnt =
-					ftl_cmd_cnt - 1;
-				p_BTableChangesDelta->BT_Index = lba;
-				p_BTableChangesDelta->BT_Entry_Value =
-								pbt[lba];
-
-				p_BTableChangesDelta->ValidFields = 0x0C;
-
-				ret = PASS;
-				pBTBlocksNode[last_erased - FIRST_BT_ID] =
-							BTBLOCK_INVAL;
-				nand_dbg_print(NAND_DBG_DEBUG,
-					"resetting bt entry at index %d "
-					"value %d\n", i,
-					pBTBlocksNode[i - FIRST_BT_ID]);
-				if (last_erased == LAST_BT_ID)
-					last_erased = FIRST_BT_ID;
-				else
-					last_erased++;
-			} else {
-				MARK_BLOCK_AS_BAD(pbt[lba]);
-			}
-		}
-	}
-
-	BT_GC_Called = 0;
-
-	return ret;
-}
-
-#else
-static int do_bt_garbage_collection(void)
-{
-	u32 pba, lba;
-	u32 *pbt = (u32 *)g_pBlockTable;
-	u32 *pBTBlocksNode = (u32 *)g_pBTBlocks;
-	u64 addr;
-	int i, ret = FAIL;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-			       __FILE__, __LINE__, __func__);
-
-	if (BT_GC_Called)
-		return PASS;
-
-	BT_GC_Called = 1;
-
-	for (i = last_erased; (i <= LAST_BT_ID) &&
-		(g_pBTBlocks[((i + 2) % (1 + LAST_BT_ID - FIRST_BT_ID)) +
-		FIRST_BT_ID - FIRST_BT_ID] != BTBLOCK_INVAL); i++) {
-		pba = pBTBlocksNode[i - FIRST_BT_ID];
-		lba = FTL_Get_Block_Index(pba);
-		nand_dbg_print(NAND_DBG_DEBUG,
-			"do_bt_garbage_collection_cdma: pba %d, lba %d\n",
-			pba, lba);
-		nand_dbg_print(NAND_DBG_DEBUG,
-			"Block Table Entry: %d", pbt[lba]);
-
-		if (((pbt[lba] & BAD_BLOCK) != BAD_BLOCK) &&
-			(pbt[lba] & DISCARD_BLOCK)) {
-			nand_dbg_print(NAND_DBG_DEBUG,
-				"do_bt_garbage_collection: "
-				"Erasing Block tables present in block %d\n",
-				pba);
-			addr = FTL_Get_Physical_Block_Addr((u64)lba *
-						DeviceInfo.wBlockDataSize);
-			if (PASS == GLOB_FTL_Block_Erase(addr)) {
-				pbt[lba] &= (u32)(~DISCARD_BLOCK);
-				pbt[lba] |= (u32)(SPARE_BLOCK);
-				ret = PASS;
-				pBTBlocksNode[last_erased - FIRST_BT_ID] =
-							BTBLOCK_INVAL;
-				nand_dbg_print(NAND_DBG_DEBUG,
-					"resetting bt entry at index %d "
-					"value %d\n", i,
-					pBTBlocksNode[i - FIRST_BT_ID]);
-				if (last_erased == LAST_BT_ID)
-					last_erased = FIRST_BT_ID;
-				else
-					last_erased++;
-			} else {
-				MARK_BLOCK_AS_BAD(pbt[lba]);
-			}
-		}
-	}
-
-	BT_GC_Called = 0;
-
-	return ret;
-}
-
-#endif
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     GLOB_FTL_BT_Garbage_Collection
-* Inputs:       none
-* Outputs:      PASS / FAIL (returns the number of un-erased blocks
-* Description:  Erases discarded blocks containing Block table
-*
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-int GLOB_FTL_BT_Garbage_Collection(void)
-{
-	return do_bt_garbage_collection();
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     FTL_Replace_OneBlock
-* Inputs:       Block number 1
-*               Block number 2
-* Outputs:      Replaced Block Number
-* Description:  Interchange block table entries at wBlockNum and wReplaceNum
-*
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-static u32 FTL_Replace_OneBlock(u32 blk, u32 rep_blk)
-{
-	u32 tmp_blk;
-	u32 replace_node = BAD_BLOCK;
-	u32 *pbt = (u32 *)g_pBlockTable;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		__FILE__, __LINE__, __func__);
-
-	if (rep_blk != BAD_BLOCK) {
-		if (IS_BAD_BLOCK(blk))
-			tmp_blk = pbt[blk];
-		else
-			tmp_blk = DISCARD_BLOCK | (~SPARE_BLOCK & pbt[blk]);
-
-		replace_node = (u32) ((~SPARE_BLOCK) & pbt[rep_blk]);
-		pbt[blk] = replace_node;
-		pbt[rep_blk] = tmp_blk;
-
-#if CMD_DMA
-		p_BTableChangesDelta =
-			(struct BTableChangesDelta *)g_pBTDelta_Free;
-		g_pBTDelta_Free += sizeof(struct BTableChangesDelta);
-
-		p_BTableChangesDelta->ftl_cmd_cnt = ftl_cmd_cnt;
-		p_BTableChangesDelta->BT_Index = blk;
-		p_BTableChangesDelta->BT_Entry_Value = pbt[blk];
-
-		p_BTableChangesDelta->ValidFields = 0x0C;
-
-		p_BTableChangesDelta =
-			(struct BTableChangesDelta *)g_pBTDelta_Free;
-		g_pBTDelta_Free += sizeof(struct BTableChangesDelta);
-
-		p_BTableChangesDelta->ftl_cmd_cnt = ftl_cmd_cnt;
-		p_BTableChangesDelta->BT_Index = rep_blk;
-		p_BTableChangesDelta->BT_Entry_Value = pbt[rep_blk];
-		p_BTableChangesDelta->ValidFields = 0x0C;
-#endif
-	}
-
-	return replace_node;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     FTL_Write_Block_Table_Data
-* Inputs:       Block table size in pages
-* Outputs:      PASS=0 / FAIL=1
-* Description:  Write block table data in flash
-*               If first page and last page
-*                  Write data+BT flag
-*               else
-*                  Write data
-*               BT flag is a counter. Its value is incremented for block table
-*               write in a new Block
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-static int FTL_Write_Block_Table_Data(void)
-{
-	u64 dwBlockTableAddr, pTempAddr;
-	u32 Block;
-	u16 Page, PageCount;
-	u8 *tempBuf = tmp_buf_write_blk_table_data;
-	int wBytesCopied;
-	u16 bt_pages;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-			       __FILE__, __LINE__, __func__);
-
-	dwBlockTableAddr =
-		(u64)((u64)g_wBlockTableIndex * DeviceInfo.wBlockDataSize +
-		(u64)g_wBlockTableOffset * DeviceInfo.wPageDataSize);
-	pTempAddr = dwBlockTableAddr;
-
-	bt_pages = FTL_Get_Block_Table_Flash_Size_Pages();
-
-	nand_dbg_print(NAND_DBG_DEBUG, "FTL_Write_Block_Table_Data: "
-			       "page= %d BlockTableIndex= %d "
-			       "BlockTableOffset=%d\n", bt_pages,
-			       g_wBlockTableIndex, g_wBlockTableOffset);
-
-	Block = BLK_FROM_ADDR(pTempAddr);
-	Page = PAGE_FROM_ADDR(pTempAddr, Block);
-	PageCount = 1;
-
-	if (bt_block_changed) {
-		if (bt_flag == LAST_BT_ID) {
-			bt_flag = FIRST_BT_ID;
-			g_pBTBlocks[bt_flag - FIRST_BT_ID] = Block;
-		} else if (bt_flag < LAST_BT_ID) {
-			bt_flag++;
-			g_pBTBlocks[bt_flag - FIRST_BT_ID] = Block;
-		}
-
-		if ((bt_flag > (LAST_BT_ID-4)) &&
-			g_pBTBlocks[FIRST_BT_ID - FIRST_BT_ID] !=
-						BTBLOCK_INVAL) {
-			bt_block_changed = 0;
-			GLOB_FTL_BT_Garbage_Collection();
-		}
-
-		bt_block_changed = 0;
-		nand_dbg_print(NAND_DBG_DEBUG,
-			"Block Table Counter is %u Block %u\n",
-			bt_flag, (unsigned int)Block);
-	}
-
-	memset(tempBuf, 0, 3);
-	tempBuf[3] = bt_flag;
-	wBytesCopied = FTL_Copy_Block_Table_To_Flash(tempBuf + 4,
-			DeviceInfo.wPageDataSize - 4, 0);
-	memset(&tempBuf[wBytesCopied + 4], 0xff,
-		DeviceInfo.wPageSize - (wBytesCopied + 4));
-	FTL_Insert_Block_Table_Signature(&tempBuf[DeviceInfo.wPageDataSize],
-					bt_flag);
-
-#if CMD_DMA
-	memcpy(g_pNextBlockTable, tempBuf,
-		DeviceInfo.wPageSize * sizeof(u8));
-	nand_dbg_print(NAND_DBG_DEBUG, "Writing First Page of Block Table "
-		"Block %u Page %u\n", (unsigned int)Block, Page);
-	if (FAIL == GLOB_LLD_Write_Page_Main_Spare_cdma(g_pNextBlockTable,
-		Block, Page, 1,
-		LLD_CMD_FLAG_MODE_CDMA | LLD_CMD_FLAG_ORDER_BEFORE_REST)) {
-		nand_dbg_print(NAND_DBG_WARN, "NAND Program fail in "
-			"%s, Line %d, Function: %s, "
-			"new Bad Block %d generated!\n",
-			__FILE__, __LINE__, __func__, Block);
-		goto func_return;
-	}
-
-	ftl_cmd_cnt++;
-	g_pNextBlockTable += ((DeviceInfo.wPageSize * sizeof(u8)));
-#else
-	if (FAIL == GLOB_LLD_Write_Page_Main_Spare(tempBuf, Block, Page, 1)) {
-		nand_dbg_print(NAND_DBG_WARN,
-			"NAND Program fail in %s, Line %d, Function: %s, "
-			"new Bad Block %d generated!\n",
-			__FILE__, __LINE__, __func__, Block);
-		goto func_return;
-	}
-#endif
-
-	if (bt_pages > 1) {
-		PageCount = bt_pages - 1;
-		if (PageCount > 1) {
-			wBytesCopied += FTL_Copy_Block_Table_To_Flash(tempBuf,
-				DeviceInfo.wPageDataSize * (PageCount - 1),
-				wBytesCopied);
-
-#if CMD_DMA
-			memcpy(g_pNextBlockTable, tempBuf,
-				(PageCount - 1) * DeviceInfo.wPageDataSize);
-			if (FAIL == GLOB_LLD_Write_Page_Main_cdma(
-				g_pNextBlockTable, Block, Page + 1,
-				PageCount - 1)) {
-				nand_dbg_print(NAND_DBG_WARN,
-					"NAND Program fail in %s, Line %d, "
-					"Function: %s, "
-					"new Bad Block %d generated!\n",
-					__FILE__, __LINE__, __func__,
-					(int)Block);
-				goto func_return;
-			}
-
-			ftl_cmd_cnt++;
-			g_pNextBlockTable += (PageCount - 1) *
-				DeviceInfo.wPageDataSize * sizeof(u8);
-#else
-			if (FAIL == GLOB_LLD_Write_Page_Main(tempBuf,
-					Block, Page + 1, PageCount - 1)) {
-				nand_dbg_print(NAND_DBG_WARN,
-					"NAND Program fail in %s, Line %d, "
-					"Function: %s, "
-					"new Bad Block %d generated!\n",
-					__FILE__, __LINE__, __func__,
-					(int)Block);
-				goto func_return;
-			}
-#endif
-		}
-
-		wBytesCopied = FTL_Copy_Block_Table_To_Flash(tempBuf,
-				DeviceInfo.wPageDataSize, wBytesCopied);
-		memset(&tempBuf[wBytesCopied], 0xff,
-			DeviceInfo.wPageSize-wBytesCopied);
-		FTL_Insert_Block_Table_Signature(
-			&tempBuf[DeviceInfo.wPageDataSize], bt_flag);
-#if CMD_DMA
-		memcpy(g_pNextBlockTable, tempBuf,
-				DeviceInfo.wPageSize * sizeof(u8));
-		nand_dbg_print(NAND_DBG_DEBUG,
-			"Writing the last Page of Block Table "
-			"Block %u Page %u\n",
-			(unsigned int)Block, Page + bt_pages - 1);
-		if (FAIL == GLOB_LLD_Write_Page_Main_Spare_cdma(
-			g_pNextBlockTable, Block, Page + bt_pages - 1, 1,
-			LLD_CMD_FLAG_MODE_CDMA |
-			LLD_CMD_FLAG_ORDER_BEFORE_REST)) {
-			nand_dbg_print(NAND_DBG_WARN,
-				"NAND Program fail in %s, Line %d, "
-				"Function: %s, new Bad Block %d generated!\n",
-				__FILE__, __LINE__, __func__, Block);
-			goto func_return;
-		}
-		ftl_cmd_cnt++;
-#else
-		if (FAIL == GLOB_LLD_Write_Page_Main_Spare(tempBuf,
-					Block, Page+bt_pages - 1, 1)) {
-			nand_dbg_print(NAND_DBG_WARN,
-				"NAND Program fail in %s, Line %d, "
-				"Function: %s, "
-				"new Bad Block %d generated!\n",
-				__FILE__, __LINE__, __func__, Block);
-			goto func_return;
-		}
-#endif
-	}
-
-	nand_dbg_print(NAND_DBG_DEBUG, "FTL_Write_Block_Table_Data: done\n");
-
-func_return:
-	return PASS;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     FTL_Replace_Block_Table
-* Inputs:       None
-* Outputs:      PASS=0 / FAIL=1
-* Description:  Get a new block to write block table
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-static u32 FTL_Replace_Block_Table(void)
-{
-	u32 blk;
-	int gc;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		__FILE__, __LINE__, __func__);
-
-	blk = FTL_Replace_LWBlock(BLOCK_TABLE_INDEX, &gc);
-
-	if ((BAD_BLOCK == blk) && (PASS == gc)) {
-		GLOB_FTL_Garbage_Collection();
-		blk = FTL_Replace_LWBlock(BLOCK_TABLE_INDEX, &gc);
-	}
-	if (BAD_BLOCK == blk)
-		printk(KERN_ERR "%s, %s: There is no spare block. "
-			"It should never happen\n",
-			__FILE__, __func__);
-
-	nand_dbg_print(NAND_DBG_DEBUG, "New Block table Block is %d\n", blk);
-
-	return blk;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     FTL_Replace_LWBlock
-* Inputs:       Block number
-*               Pointer to Garbage Collect flag
-* Outputs:
-* Description:  Determine the least weared block by traversing
-*               block table
-*               Set Garbage collection to be called if number of spare
-*               block is less than Free Block Gate count
-*               Change Block table entry to map least worn block for current
-*               operation
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-static u32 FTL_Replace_LWBlock(u32 wBlockNum, int *pGarbageCollect)
-{
-	u32 i;
-	u32 *pbt = (u32 *)g_pBlockTable;
-	u8 wLeastWornCounter = 0xFF;
-	u32 wLeastWornIndex = BAD_BLOCK;
-	u32 wSpareBlockNum = 0;
-	u32 wDiscardBlockNum = 0;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		__FILE__, __LINE__, __func__);
-
-	if (IS_SPARE_BLOCK(wBlockNum)) {
-		*pGarbageCollect = FAIL;
-		pbt[wBlockNum] = (u32)(pbt[wBlockNum] & (~SPARE_BLOCK));
-#if CMD_DMA
-		p_BTableChangesDelta =
-			(struct BTableChangesDelta *)g_pBTDelta_Free;
-		g_pBTDelta_Free += sizeof(struct BTableChangesDelta);
-		p_BTableChangesDelta->ftl_cmd_cnt =
-						ftl_cmd_cnt;
-		p_BTableChangesDelta->BT_Index = (u32)(wBlockNum);
-		p_BTableChangesDelta->BT_Entry_Value = pbt[wBlockNum];
-		p_BTableChangesDelta->ValidFields = 0x0C;
-#endif
-		return pbt[wBlockNum];
-	}
-
-	for (i = 0; i < DeviceInfo.wDataBlockNum; i++) {
-		if (IS_DISCARDED_BLOCK(i))
-			wDiscardBlockNum++;
-
-		if (IS_SPARE_BLOCK(i)) {
-			u32 wPhysicalIndex = (u32)((~BAD_BLOCK) & pbt[i]);
-			if (wPhysicalIndex > DeviceInfo.wSpectraEndBlock)
-				printk(KERN_ERR "FTL_Replace_LWBlock: "
-					"This should never occur!\n");
-			if (g_pWearCounter[wPhysicalIndex -
-				DeviceInfo.wSpectraStartBlock] <
-				wLeastWornCounter) {
-				wLeastWornCounter =
-					g_pWearCounter[wPhysicalIndex -
-					DeviceInfo.wSpectraStartBlock];
-				wLeastWornIndex = i;
-			}
-			wSpareBlockNum++;
-		}
-	}
-
-	nand_dbg_print(NAND_DBG_WARN,
-		"FTL_Replace_LWBlock: Least Worn Counter %d\n",
-		(int)wLeastWornCounter);
-
-	if ((wDiscardBlockNum >= NUM_FREE_BLOCKS_GATE) ||
-		(wSpareBlockNum <= NUM_FREE_BLOCKS_GATE))
-		*pGarbageCollect = PASS;
-	else
-		*pGarbageCollect = FAIL;
-
-	nand_dbg_print(NAND_DBG_DEBUG,
-		"FTL_Replace_LWBlock: Discarded Blocks %u Spare"
-		" Blocks %u\n",
-		(unsigned int)wDiscardBlockNum,
-		(unsigned int)wSpareBlockNum);
-
-	return FTL_Replace_OneBlock(wBlockNum, wLeastWornIndex);
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     FTL_Replace_MWBlock
-* Inputs:       None
-* Outputs:      most worn spare block no./BAD_BLOCK
-* Description:  It finds most worn spare block.
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-static u32 FTL_Replace_MWBlock(void)
-{
-	u32 i;
-	u32 *pbt = (u32 *)g_pBlockTable;
-	u8 wMostWornCounter = 0;
-	u32 wMostWornIndex = BAD_BLOCK;
-	u32 wSpareBlockNum = 0;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	for (i = 0; i < DeviceInfo.wDataBlockNum; i++) {
-		if (IS_SPARE_BLOCK(i)) {
-			u32 wPhysicalIndex = (u32)((~SPARE_BLOCK) & pbt[i]);
-			if (g_pWearCounter[wPhysicalIndex -
-			    DeviceInfo.wSpectraStartBlock] >
-			    wMostWornCounter) {
-				wMostWornCounter =
-				    g_pWearCounter[wPhysicalIndex -
-				    DeviceInfo.wSpectraStartBlock];
-				wMostWornIndex = wPhysicalIndex;
-			}
-			wSpareBlockNum++;
-		}
-	}
-
-	if (wSpareBlockNum <= 2)
-		return BAD_BLOCK;
-
-	return wMostWornIndex;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     FTL_Replace_Block
-* Inputs:       Block Address
-* Outputs:      PASS=0 / FAIL=1
-* Description:  If block specified by blk_addr parameter is not free,
-*               replace it with the least worn block.
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-static int FTL_Replace_Block(u64 blk_addr)
-{
-	u32 current_blk = BLK_FROM_ADDR(blk_addr);
-	u32 *pbt = (u32 *)g_pBlockTable;
-	int wResult = PASS;
-	int GarbageCollect = FAIL;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		__FILE__, __LINE__, __func__);
-
-	if (IS_SPARE_BLOCK(current_blk)) {
-		pbt[current_blk] = (~SPARE_BLOCK) & pbt[current_blk];
-#if CMD_DMA
-		p_BTableChangesDelta =
-			(struct BTableChangesDelta *)g_pBTDelta_Free;
-		g_pBTDelta_Free += sizeof(struct BTableChangesDelta);
-		p_BTableChangesDelta->ftl_cmd_cnt =
-			ftl_cmd_cnt;
-		p_BTableChangesDelta->BT_Index = current_blk;
-		p_BTableChangesDelta->BT_Entry_Value = pbt[current_blk];
-		p_BTableChangesDelta->ValidFields = 0x0C ;
-#endif
-		return wResult;
-	}
-
-	FTL_Replace_LWBlock(current_blk, &GarbageCollect);
-
-	if (PASS == GarbageCollect)
-		wResult = GLOB_FTL_Garbage_Collection();
-
-	return wResult;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     GLOB_FTL_Is_BadBlock
-* Inputs:       block number to test
-* Outputs:      PASS (block is BAD) / FAIL (block is not bad)
-* Description:  test if this block number is flagged as bad
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-int GLOB_FTL_Is_BadBlock(u32 wBlockNum)
-{
-	u32 *pbt = (u32 *)g_pBlockTable;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		__FILE__, __LINE__, __func__);
-
-	if (wBlockNum >= DeviceInfo.wSpectraStartBlock
-		&& BAD_BLOCK == (pbt[wBlockNum] & BAD_BLOCK))
-		return PASS;
-	else
-		return FAIL;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     GLOB_FTL_Flush_Cache
-* Inputs:       none
-* Outputs:      PASS=0 / FAIL=1
-* Description:  flush all the cache blocks to flash
-*               if a cache block is not dirty, don't do anything with it
-*               else, write the block and update the block table
-* Note:         This function should be called at shutdown/power down.
-*               to write important data into device
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-int GLOB_FTL_Flush_Cache(void)
-{
-	int i, ret;
-
-	nand_dbg_print(NAND_DBG_WARN, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	for (i = 0; i < CACHE_ITEM_NUM; i++) {
-		if (SET == Cache.array[i].changed) {
-#if CMD_DMA
-#if RESTORE_CACHE_ON_CDMA_CHAIN_FAILURE
-			int_cache[ftl_cmd_cnt].item = i;
-			int_cache[ftl_cmd_cnt].cache.address =
-					Cache.array[i].address;
-			int_cache[ftl_cmd_cnt].cache.changed = CLEAR;
-#endif
-#endif
-			ret = write_back_to_l2_cache(Cache.array[i].buf, Cache.array[i].address);
-			if (PASS == ret) {
-				Cache.array[i].changed = CLEAR;
-			} else {
-				printk(KERN_ALERT "Failed when write back to L2 cache!\n");
-				/* TODO - How to handle this? */
-			}
-		}
-	}
-
-	flush_l2_cache();
-
-	return FTL_Write_Block_Table(FAIL);
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     GLOB_FTL_Page_Read
-* Inputs:       pointer to data
-*                   logical address of data (u64 is LBA * Bytes/Page)
-* Outputs:      PASS=0 / FAIL=1
-* Description:  reads a page of data into RAM from the cache
-*               if the data is not already in cache, read from flash to cache
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-int GLOB_FTL_Page_Read(u8 *data, u64 logical_addr)
-{
-	u16 cache_item;
-	int res = PASS;
-
-	nand_dbg_print(NAND_DBG_DEBUG, "GLOB_FTL_Page_Read - "
-		"page_addr: %llu\n", logical_addr);
-
-	cache_item = FTL_Cache_If_Hit(logical_addr);
-
-	if (UNHIT_CACHE_ITEM == cache_item) {
-		nand_dbg_print(NAND_DBG_DEBUG,
-			       "GLOB_FTL_Page_Read: Cache not hit\n");
-		res = FTL_Cache_Write();
-		if (ERR == FTL_Cache_Read(logical_addr))
-			res = ERR;
-		cache_item = Cache.LRU;
-	}
-
-	FTL_Cache_Read_Page(data, logical_addr, cache_item);
-
-	return res;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     GLOB_FTL_Page_Write
-* Inputs:       pointer to data
-*               address of data (ADDRESSTYPE is LBA * Bytes/Page)
-* Outputs:      PASS=0 / FAIL=1
-* Description:  writes a page of data from RAM to the cache
-*               if the data is not already in cache, write back the
-*               least recently used block and read the addressed block
-*               from flash to cache
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-int GLOB_FTL_Page_Write(u8 *pData, u64 dwPageAddr)
-{
-	u16 cache_blk;
-	u32 *pbt = (u32 *)g_pBlockTable;
-	int wResult = PASS;
-
-	nand_dbg_print(NAND_DBG_TRACE, "GLOB_FTL_Page_Write - "
-		"dwPageAddr: %llu\n", dwPageAddr);
-
-	cache_blk = FTL_Cache_If_Hit(dwPageAddr);
-
-	if (UNHIT_CACHE_ITEM == cache_blk) {
-		wResult = FTL_Cache_Write();
-		if (IS_BAD_BLOCK(BLK_FROM_ADDR(dwPageAddr))) {
-			wResult = FTL_Replace_Block(dwPageAddr);
-			pbt[BLK_FROM_ADDR(dwPageAddr)] |= SPARE_BLOCK;
-			if (wResult == FAIL)
-				return FAIL;
-		}
-		if (ERR == FTL_Cache_Read(dwPageAddr))
-			wResult = ERR;
-		cache_blk = Cache.LRU;
-		FTL_Cache_Write_Page(pData, dwPageAddr, cache_blk, 0);
-	} else {
-#if CMD_DMA
-		FTL_Cache_Write_Page(pData, dwPageAddr, cache_blk,
-				LLD_CMD_FLAG_ORDER_BEFORE_REST);
-#else
-		FTL_Cache_Write_Page(pData, dwPageAddr, cache_blk, 0);
-#endif
-	}
-
-	return wResult;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     GLOB_FTL_Block_Erase
-* Inputs:       address of block to erase (now in byte format, should change to
-* block format)
-* Outputs:      PASS=0 / FAIL=1
-* Description:  erases the specified block
-*               increments the erase count
-*               If erase count reaches its upper limit,call function to
-*               do the adjustment as per the relative erase count values
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-int GLOB_FTL_Block_Erase(u64 blk_addr)
-{
-	int status;
-	u32 BlkIdx;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-			       __FILE__, __LINE__, __func__);
-
-	BlkIdx = (u32)(blk_addr >> DeviceInfo.nBitsInBlockDataSize);
-
-	if (BlkIdx < DeviceInfo.wSpectraStartBlock) {
-		printk(KERN_ERR "GLOB_FTL_Block_Erase: "
-			"This should never occur\n");
-		return FAIL;
-	}
-
-#if CMD_DMA
-	status = GLOB_LLD_Erase_Block_cdma(BlkIdx, LLD_CMD_FLAG_MODE_CDMA);
-	if (status == FAIL)
-		nand_dbg_print(NAND_DBG_WARN,
-			       "NAND Program fail in %s, Line %d, "
-			       "Function: %s, new Bad Block %d generated!\n",
-			       __FILE__, __LINE__, __func__, BlkIdx);
-#else
-	status = GLOB_LLD_Erase_Block(BlkIdx);
-	if (status == FAIL) {
-		nand_dbg_print(NAND_DBG_WARN,
-			       "NAND Program fail in %s, Line %d, "
-			       "Function: %s, new Bad Block %d generated!\n",
-			       __FILE__, __LINE__, __func__, BlkIdx);
-		return status;
-	}
-#endif
-
-	if (DeviceInfo.MLCDevice) {
-		g_pReadCounter[BlkIdx - DeviceInfo.wSpectraStartBlock] = 0;
-		if (g_cBlockTableStatus != IN_PROGRESS_BLOCK_TABLE) {
-			g_cBlockTableStatus = IN_PROGRESS_BLOCK_TABLE;
-			FTL_Write_IN_Progress_Block_Table_Page();
-		}
-	}
-
-	g_pWearCounter[BlkIdx - DeviceInfo.wSpectraStartBlock]++;
-
-#if CMD_DMA
-	p_BTableChangesDelta =
-		(struct BTableChangesDelta *)g_pBTDelta_Free;
-	g_pBTDelta_Free += sizeof(struct BTableChangesDelta);
-	p_BTableChangesDelta->ftl_cmd_cnt = ftl_cmd_cnt;
-	p_BTableChangesDelta->WC_Index =
-		BlkIdx - DeviceInfo.wSpectraStartBlock;
-	p_BTableChangesDelta->WC_Entry_Value =
-		g_pWearCounter[BlkIdx - DeviceInfo.wSpectraStartBlock];
-	p_BTableChangesDelta->ValidFields = 0x30;
-
-	if (DeviceInfo.MLCDevice) {
-		p_BTableChangesDelta =
-			(struct BTableChangesDelta *)g_pBTDelta_Free;
-		g_pBTDelta_Free += sizeof(struct BTableChangesDelta);
-		p_BTableChangesDelta->ftl_cmd_cnt =
-			ftl_cmd_cnt;
-		p_BTableChangesDelta->RC_Index =
-			BlkIdx - DeviceInfo.wSpectraStartBlock;
-		p_BTableChangesDelta->RC_Entry_Value =
-			g_pReadCounter[BlkIdx -
-				DeviceInfo.wSpectraStartBlock];
-		p_BTableChangesDelta->ValidFields = 0xC0;
-	}
-
-	ftl_cmd_cnt++;
-#endif
-
-	if (g_pWearCounter[BlkIdx - DeviceInfo.wSpectraStartBlock] == 0xFE)
-		FTL_Adjust_Relative_Erase_Count(BlkIdx);
-
-	return status;
-}
-
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     FTL_Adjust_Relative_Erase_Count
-* Inputs:       index to block that was just incremented and is at the max
-* Outputs:      PASS=0 / FAIL=1
-* Description:  If any erase counts at MAX, adjusts erase count of every
-*               block by subtracting least worn
-*               counter from counter value of every entry in wear table
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-static int FTL_Adjust_Relative_Erase_Count(u32 Index_of_MAX)
-{
-	u8 wLeastWornCounter = MAX_BYTE_VALUE;
-	u8 wWearCounter;
-	u32 i, wWearIndex;
-	u32 *pbt = (u32 *)g_pBlockTable;
-	int wResult = PASS;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		__FILE__, __LINE__, __func__);
-
-	for (i = 0; i < DeviceInfo.wDataBlockNum; i++) {
-		if (IS_BAD_BLOCK(i))
-			continue;
-		wWearIndex = (u32)(pbt[i] & (~BAD_BLOCK));
-
-		if ((wWearIndex - DeviceInfo.wSpectraStartBlock) < 0)
-			printk(KERN_ERR "FTL_Adjust_Relative_Erase_Count:"
-					"This should never occur\n");
-		wWearCounter = g_pWearCounter[wWearIndex -
-			DeviceInfo.wSpectraStartBlock];
-		if (wWearCounter < wLeastWornCounter)
-			wLeastWornCounter = wWearCounter;
-	}
-
-	if (wLeastWornCounter == 0) {
-		nand_dbg_print(NAND_DBG_WARN,
-			"Adjusting Wear Levelling Counters: Special Case\n");
-		g_pWearCounter[Index_of_MAX -
-			DeviceInfo.wSpectraStartBlock]--;
-#if CMD_DMA
-		p_BTableChangesDelta =
-			(struct BTableChangesDelta *)g_pBTDelta_Free;
-		g_pBTDelta_Free += sizeof(struct BTableChangesDelta);
-		p_BTableChangesDelta->ftl_cmd_cnt = ftl_cmd_cnt;
-		p_BTableChangesDelta->WC_Index =
-			Index_of_MAX - DeviceInfo.wSpectraStartBlock;
-		p_BTableChangesDelta->WC_Entry_Value =
-			g_pWearCounter[Index_of_MAX -
-				DeviceInfo.wSpectraStartBlock];
-		p_BTableChangesDelta->ValidFields = 0x30;
-#endif
-		FTL_Static_Wear_Leveling();
-	} else {
-		for (i = 0; i < DeviceInfo.wDataBlockNum; i++)
-			if (!IS_BAD_BLOCK(i)) {
-				wWearIndex = (u32)(pbt[i] & (~BAD_BLOCK));
-				g_pWearCounter[wWearIndex -
-					DeviceInfo.wSpectraStartBlock] =
-					(u8)(g_pWearCounter
-					[wWearIndex -
-					DeviceInfo.wSpectraStartBlock] -
-					wLeastWornCounter);
-#if CMD_DMA
-				p_BTableChangesDelta =
-				(struct BTableChangesDelta *)g_pBTDelta_Free;
-				g_pBTDelta_Free +=
-					sizeof(struct BTableChangesDelta);
-
-				p_BTableChangesDelta->ftl_cmd_cnt =
-					ftl_cmd_cnt;
-				p_BTableChangesDelta->WC_Index = wWearIndex -
-					DeviceInfo.wSpectraStartBlock;
-				p_BTableChangesDelta->WC_Entry_Value =
-					g_pWearCounter[wWearIndex -
-					DeviceInfo.wSpectraStartBlock];
-				p_BTableChangesDelta->ValidFields = 0x30;
-#endif
-			}
-	}
-
-	return wResult;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     FTL_Write_IN_Progress_Block_Table_Page
-* Inputs:       None
-* Outputs:      None
-* Description:  It writes in-progress flag page to the page next to
-*               block table
-***********************************************************************/
-static int FTL_Write_IN_Progress_Block_Table_Page(void)
-{
-	int wResult = PASS;
-	u16 bt_pages;
-	u16 dwIPFPageAddr;
-#if CMD_DMA
-#else
-	u32 *pbt = (u32 *)g_pBlockTable;
-	u32 wTempBlockTableIndex;
-#endif
-
-	nand_dbg_print(NAND_DBG_WARN, "%s, Line %d, Function: %s\n",
-			       __FILE__, __LINE__, __func__);
-
-	bt_pages = FTL_Get_Block_Table_Flash_Size_Pages();
-
-	dwIPFPageAddr = g_wBlockTableOffset + bt_pages;
-
-	nand_dbg_print(NAND_DBG_DEBUG, "Writing IPF at "
-			       "Block %d Page %d\n",
-			       g_wBlockTableIndex, dwIPFPageAddr);
-
-#if CMD_DMA
-	wResult = GLOB_LLD_Write_Page_Main_Spare_cdma(g_pIPF,
-		g_wBlockTableIndex, dwIPFPageAddr, 1,
-		LLD_CMD_FLAG_MODE_CDMA | LLD_CMD_FLAG_ORDER_BEFORE_REST);
-	if (wResult == FAIL) {
-		nand_dbg_print(NAND_DBG_WARN,
-			       "NAND Program fail in %s, Line %d, "
-			       "Function: %s, new Bad Block %d generated!\n",
-			       __FILE__, __LINE__, __func__,
-			       g_wBlockTableIndex);
-	}
-	g_wBlockTableOffset = dwIPFPageAddr + 1;
-	p_BTableChangesDelta = (struct BTableChangesDelta *)g_pBTDelta_Free;
-	g_pBTDelta_Free += sizeof(struct BTableChangesDelta);
-	p_BTableChangesDelta->ftl_cmd_cnt = ftl_cmd_cnt;
-	p_BTableChangesDelta->g_wBlockTableOffset = g_wBlockTableOffset;
-	p_BTableChangesDelta->ValidFields = 0x01;
-	ftl_cmd_cnt++;
-#else
-	wResult = GLOB_LLD_Write_Page_Main_Spare(g_pIPF,
-		g_wBlockTableIndex, dwIPFPageAddr, 1);
-	if (wResult == FAIL) {
-		nand_dbg_print(NAND_DBG_WARN,
-			       "NAND Program fail in %s, Line %d, "
-			       "Function: %s, new Bad Block %d generated!\n",
-			       __FILE__, __LINE__, __func__,
-			       (int)g_wBlockTableIndex);
-		MARK_BLOCK_AS_BAD(pbt[BLOCK_TABLE_INDEX]);
-		wTempBlockTableIndex = FTL_Replace_Block_Table();
-		bt_block_changed = 1;
-		if (BAD_BLOCK == wTempBlockTableIndex)
-			return ERR;
-		g_wBlockTableIndex = wTempBlockTableIndex;
-		g_wBlockTableOffset = 0;
-		/* Block table tag is '00'. Means it's used one */
-		pbt[BLOCK_TABLE_INDEX] = g_wBlockTableIndex;
-		return FAIL;
-	}
-	g_wBlockTableOffset = dwIPFPageAddr + 1;
-#endif
-	return wResult;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     FTL_Read_Disturbance
-* Inputs:       block address
-* Outputs:      PASS=0 / FAIL=1
-* Description:  used to handle read disturbance. Data in block that
-*               reaches its read limit is moved to new block
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-int FTL_Read_Disturbance(u32 blk_addr)
-{
-	int wResult = FAIL;
-	u32 *pbt = (u32 *) g_pBlockTable;
-	u32 dwOldBlockAddr = blk_addr;
-	u32 wBlockNum;
-	u32 i;
-	u32 wLeastReadCounter = 0xFFFF;
-	u32 wLeastReadIndex = BAD_BLOCK;
-	u32 wSpareBlockNum = 0;
-	u32 wTempNode;
-	u32 wReplacedNode;
-	u8 *g_pTempBuf;
-
-	nand_dbg_print(NAND_DBG_DEBUG, "%s, Line %d, Function: %s\n",
-			       __FILE__, __LINE__, __func__);
-
-#if CMD_DMA
-	g_pTempBuf = cp_back_buf_copies[cp_back_buf_idx];
-	cp_back_buf_idx++;
-	if (cp_back_buf_idx > COPY_BACK_BUF_NUM) {
-		printk(KERN_ERR "cp_back_buf_copies overflow! Exit."
-		"Maybe too many pending commands in your CDMA chain.\n");
-		return FAIL;
-	}
-#else
-	g_pTempBuf = tmp_buf_read_disturbance;
-#endif
-
-	wBlockNum = FTL_Get_Block_Index(blk_addr);
-
-	do {
-		/* This is a bug.Here 'i' should be logical block number
-		 * and start from 1 (0 is reserved for block table).
-		 * Have fixed it.        - Yunpeng 2008. 12. 19
-		 */
-		for (i = 1; i < DeviceInfo.wDataBlockNum; i++) {
-			if (IS_SPARE_BLOCK(i)) {
-				u32 wPhysicalIndex =
-					(u32)((~SPARE_BLOCK) & pbt[i]);
-				if (g_pReadCounter[wPhysicalIndex -
-					DeviceInfo.wSpectraStartBlock] <
-					wLeastReadCounter) {
-					wLeastReadCounter =
-						g_pReadCounter[wPhysicalIndex -
-						DeviceInfo.wSpectraStartBlock];
-					wLeastReadIndex = i;
-				}
-				wSpareBlockNum++;
-			}
-		}
-
-		if (wSpareBlockNum <= NUM_FREE_BLOCKS_GATE) {
-			wResult = GLOB_FTL_Garbage_Collection();
-			if (PASS == wResult)
-				continue;
-			else
-				break;
-		} else {
-			wTempNode = (u32)(DISCARD_BLOCK | pbt[wBlockNum]);
-			wReplacedNode = (u32)((~SPARE_BLOCK) &
-					pbt[wLeastReadIndex]);
-#if CMD_DMA
-			pbt[wBlockNum] = wReplacedNode;
-			pbt[wLeastReadIndex] = wTempNode;
-			p_BTableChangesDelta =
-				(struct BTableChangesDelta *)g_pBTDelta_Free;
-			g_pBTDelta_Free += sizeof(struct BTableChangesDelta);
-
-			p_BTableChangesDelta->ftl_cmd_cnt =
-					ftl_cmd_cnt;
-			p_BTableChangesDelta->BT_Index = wBlockNum;
-			p_BTableChangesDelta->BT_Entry_Value = pbt[wBlockNum];
-			p_BTableChangesDelta->ValidFields = 0x0C;
-
-			p_BTableChangesDelta =
-				(struct BTableChangesDelta *)g_pBTDelta_Free;
-			g_pBTDelta_Free += sizeof(struct BTableChangesDelta);
-
-			p_BTableChangesDelta->ftl_cmd_cnt =
-					ftl_cmd_cnt;
-			p_BTableChangesDelta->BT_Index = wLeastReadIndex;
-			p_BTableChangesDelta->BT_Entry_Value =
-					pbt[wLeastReadIndex];
-			p_BTableChangesDelta->ValidFields = 0x0C;
-
-			wResult = GLOB_LLD_Read_Page_Main_cdma(g_pTempBuf,
-				dwOldBlockAddr, 0, DeviceInfo.wPagesPerBlock,
-				LLD_CMD_FLAG_MODE_CDMA);
-			if (wResult == FAIL)
-				return wResult;
-
-			ftl_cmd_cnt++;
-
-			if (wResult != FAIL) {
-				if (FAIL == GLOB_LLD_Write_Page_Main_cdma(
-					g_pTempBuf, pbt[wBlockNum], 0,
-					DeviceInfo.wPagesPerBlock)) {
-					nand_dbg_print(NAND_DBG_WARN,
-						"NAND Program fail in "
-						"%s, Line %d, Function: %s, "
-						"new Bad Block %d "
-						"generated!\n",
-						__FILE__, __LINE__, __func__,
-						(int)pbt[wBlockNum]);
-					wResult = FAIL;
-					MARK_BLOCK_AS_BAD(pbt[wBlockNum]);
-				}
-				ftl_cmd_cnt++;
-			}
-#else
-			wResult = GLOB_LLD_Read_Page_Main(g_pTempBuf,
-				dwOldBlockAddr, 0, DeviceInfo.wPagesPerBlock);
-			if (wResult == FAIL)
-				return wResult;
-
-			if (wResult != FAIL) {
-				/* This is a bug. At this time, pbt[wBlockNum]
-				is still the physical address of
-				discard block, and should not be write.
-				Have fixed it as below.
-					-- Yunpeng 2008.12.19
-				*/
-				wResult = GLOB_LLD_Write_Page_Main(g_pTempBuf,
-					wReplacedNode, 0,
-					DeviceInfo.wPagesPerBlock);
-				if (wResult == FAIL) {
-					nand_dbg_print(NAND_DBG_WARN,
-						"NAND Program fail in "
-						"%s, Line %d, Function: %s, "
-						"new Bad Block %d "
-						"generated!\n",
-						__FILE__, __LINE__, __func__,
-						(int)wReplacedNode);
-					MARK_BLOCK_AS_BAD(wReplacedNode);
-				} else {
-					pbt[wBlockNum] = wReplacedNode;
-					pbt[wLeastReadIndex] = wTempNode;
-				}
-			}
-
-			if ((wResult == PASS) && (g_cBlockTableStatus !=
-				IN_PROGRESS_BLOCK_TABLE)) {
-				g_cBlockTableStatus = IN_PROGRESS_BLOCK_TABLE;
-				FTL_Write_IN_Progress_Block_Table_Page();
-			}
-#endif
-		}
-	} while (wResult != PASS)
-	;
-
-#if CMD_DMA
-	/* ... */
-#endif
-
-	return wResult;
-}
-
diff --git a/drivers/staging/spectra/flash.h b/drivers/staging/spectra/flash.h
deleted file mode 100644
index e59cf4ede551..000000000000
--- a/drivers/staging/spectra/flash.h
+++ /dev/null
@@ -1,198 +0,0 @@
-/*
- * NAND Flash Controller Device Driver
- * Copyright (c) 2009, Intel Corporation and its suppliers.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- */
-
-#ifndef _FLASH_INTERFACE_
-#define _FLASH_INTERFACE_
-
-#include "ffsport.h"
-#include "spectraswconfig.h"
-
-#define MAX_BYTE_VALUE        0xFF
-#define MAX_WORD_VALUE        0xFFFF
-#define MAX_U32_VALUE        0xFFFFFFFF
-
-#define MAX_BLOCKNODE_VALUE     0xFFFFFF
-#define DISCARD_BLOCK           0x800000
-#define SPARE_BLOCK             0x400000
-#define BAD_BLOCK               0xC00000
-
-#define UNHIT_CACHE_ITEM         0xFFFF
-
-#define NAND_CACHE_INIT_ADDR    0xffffffffffffffffULL
-
-#define IN_PROGRESS_BLOCK_TABLE   0x00
-#define CURRENT_BLOCK_TABLE       0x01
-
-#define BTSIG_OFFSET   (0)
-#define BTSIG_BYTES    (5)
-#define BTSIG_DELTA    (3)
-
-#define MAX_READ_COUNTER  0x2710
-
-#define FIRST_BT_ID		(1)
-#define LAST_BT_ID    (254)
-#define BTBLOCK_INVAL  (u32)(0xFFFFFFFF)
-
-struct device_info_tag {
-	u16 wDeviceMaker;
-	u16 wDeviceID;
-	u32 wDeviceType;
-	u32 wSpectraStartBlock;
-	u32 wSpectraEndBlock;
-	u32 wTotalBlocks;
-	u16 wPagesPerBlock;
-	u16 wPageSize;
-	u16 wPageDataSize;
-	u16 wPageSpareSize;
-	u16 wNumPageSpareFlag;
-	u16 wECCBytesPerSector;
-	u32 wBlockSize;
-	u32 wBlockDataSize;
-	u32 wDataBlockNum;
-	u8 bPlaneNum;
-	u16 wDeviceMainAreaSize;
-	u16 wDeviceSpareAreaSize;
-	u16 wDevicesConnected;
-	u16 wDeviceWidth;
-	u16 wHWRevision;
-	u16 wHWFeatures;
-
-	u16 wONFIDevFeatures;
-	u16 wONFIOptCommands;
-	u16 wONFITimingMode;
-	u16 wONFIPgmCacheTimingMode;
-
-	u16 MLCDevice;
-	u16 wSpareSkipBytes;
-
-	u8 nBitsInPageNumber;
-	u8 nBitsInPageDataSize;
-	u8 nBitsInBlockDataSize;
-};
-
-extern struct device_info_tag DeviceInfo;
-
-/* Cache item format */
-struct flash_cache_item_tag {
-	u64 address;
-	u16 use_cnt;
-	u16 changed;
-	u8 *buf;
-};
-
-struct flash_cache_tag {
-	u32 cache_item_size; /* Size in bytes of each cache item */
-	u16 pages_per_item; /* How many NAND pages in each cache item */
-	u16 LRU; /* No. of the least recently used cache item */
-	struct flash_cache_item_tag array[CACHE_ITEM_NUM];
-};
-
-/*
- *Data structure for each list node of the management table
- * used for the Level 2 Cache. Each node maps one logical NAND block.
- */
-struct spectra_l2_cache_list {
-	struct list_head list;
-	u32 logical_blk_num; /* Logical block number */
-	u32 pages_array[]; /* Page map array of this logical block.
-			   * Array index is the logical block number,
-			   * and for every item of this arry:
-			   * high 16 bit is index of the L2 cache block num,
-			   * low 16 bit is the phy page num
-			   * of the above L2 cache block.
-			   * This array will be kmalloc during run time.
-			   */
-};
-
-struct spectra_l2_cache_info {
-	u32 blk_array[BLK_NUM_FOR_L2_CACHE];
-	u16 cur_blk_idx; /* idx to the phy block number of current using */
-	u16 cur_page_num; /* pages number of current using */
-	struct spectra_l2_cache_list table; /* First node of the table */
-};
-
-#define RESTORE_CACHE_ON_CDMA_CHAIN_FAILURE    1
-
-#if RESTORE_CACHE_ON_CDMA_CHAIN_FAILURE
-struct flash_cache_mod_item_tag {
-	u64 address;
-	u8 changed;
-};
-
-struct flash_cache_delta_list_tag {
-	u8 item;  /* used cache item */
-	struct flash_cache_mod_item_tag cache;
-};
-#endif
-
-extern struct flash_cache_tag Cache;
-
-extern u8 *buf_read_page_main_spare;
-extern u8 *buf_write_page_main_spare;
-extern u8 *buf_read_page_spare;
-extern u8 *buf_get_bad_block;
-extern u8 *cdma_desc_buf;
-extern u8 *memcp_desc_buf;
-
-/* struture used for IndentfyDevice function */
-struct spectra_indentfy_dev_tag {
-	u32 NumBlocks;
-	u16 PagesPerBlock;
-	u16 PageDataSize;
-	u16 wECCBytesPerSector;
-	u32 wDataBlockNum;
-};
-
-int GLOB_FTL_Flash_Init(void);
-int GLOB_FTL_Flash_Release(void);
-/*void GLOB_FTL_Erase_Flash(void);*/
-int GLOB_FTL_Block_Erase(u64 block_addr);
-int GLOB_FTL_Is_BadBlock(u32 block_num);
-int GLOB_FTL_IdentifyDevice(struct spectra_indentfy_dev_tag *dev_data);
-int GLOB_FTL_Event_Status(int *);
-u16 glob_ftl_execute_cmds(void);
-
-/*int FTL_Read_Disturbance(ADDRESSTYPE dwBlockAddr);*/
-int FTL_Read_Disturbance(u32 dwBlockAddr);
-
-/*Flash r/w based on cache*/
-int GLOB_FTL_Page_Read(u8 *read_data, u64 page_addr);
-int GLOB_FTL_Page_Write(u8 *write_data, u64 page_addr);
-int GLOB_FTL_Wear_Leveling(void);
-int GLOB_FTL_Flash_Format(void);
-int GLOB_FTL_Init(void);
-int GLOB_FTL_Flush_Cache(void);
-int GLOB_FTL_Garbage_Collection(void);
-int GLOB_FTL_BT_Garbage_Collection(void);
-void GLOB_FTL_Cache_Release(void);
-u8 *get_blk_table_start_addr(void);
-u8 *get_wear_leveling_table_start_addr(void);
-unsigned long get_blk_table_len(void);
-unsigned long get_wear_leveling_table_len(void);
-
-#if DEBUG_BNDRY
-void debug_boundary_lineno_error(int chnl, int limit, int no, int lineno,
-				char *filename);
-#define debug_boundary_error(chnl, limit, no) debug_boundary_lineno_error(chnl,\
-						limit, no, __LINE__, __FILE__)
-#else
-#define debug_boundary_error(chnl, limit, no) ;
-#endif
-
-#endif /*_FLASH_INTERFACE_*/
diff --git a/drivers/staging/spectra/lld.c b/drivers/staging/spectra/lld.c
deleted file mode 100644
index 5c3b9762dc3e..000000000000
--- a/drivers/staging/spectra/lld.c
+++ /dev/null
@@ -1,339 +0,0 @@
-/*
- * NAND Flash Controller Device Driver
- * Copyright (c) 2009, Intel Corporation and its suppliers.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- */
-
-#include "spectraswconfig.h"
-#include "ffsport.h"
-#include "ffsdefs.h"
-#include "lld.h"
-#include "lld_nand.h"
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-#if FLASH_EMU		/* vector all the LLD calls to the LLD_EMU code */
-#include "lld_emu.h"
-#include "lld_cdma.h"
-
-/* common functions: */
-u16 GLOB_LLD_Flash_Reset(void)
-{
-	return emu_Flash_Reset();
-}
-
-u16 GLOB_LLD_Read_Device_ID(void)
-{
-	return emu_Read_Device_ID();
-}
-
-int GLOB_LLD_Flash_Release(void)
-{
-	return emu_Flash_Release();
-}
-
-u16 GLOB_LLD_Flash_Init(void)
-{
-	return emu_Flash_Init();
-}
-
-u16 GLOB_LLD_Erase_Block(u32 block_add)
-{
-	return emu_Erase_Block(block_add);
-}
-
-u16 GLOB_LLD_Write_Page_Main(u8 *write_data, u32 block, u16 Page,
-				u16 PageCount)
-{
-	return emu_Write_Page_Main(write_data, block, Page, PageCount);
-}
-
-u16 GLOB_LLD_Read_Page_Main(u8 *read_data, u32 block, u16 Page,
-			       u16 PageCount)
-{
-	return emu_Read_Page_Main(read_data, block, Page, PageCount);
-}
-
-u16 GLOB_LLD_Read_Page_Main_Polling(u8 *read_data,
-			u32 block, u16 page, u16 page_count)
-{
-	return emu_Read_Page_Main(read_data, block, page, page_count);
-}
-
-u16 GLOB_LLD_Write_Page_Main_Spare(u8 *write_data, u32 block,
-				      u16 Page, u16 PageCount)
-{
-	return emu_Write_Page_Main_Spare(write_data, block, Page, PageCount);
-}
-
-u16 GLOB_LLD_Read_Page_Main_Spare(u8 *read_data, u32 block,
-				     u16 Page, u16 PageCount)
-{
-	return emu_Read_Page_Main_Spare(read_data, block, Page, PageCount);
-}
-
-u16 GLOB_LLD_Write_Page_Spare(u8 *write_data, u32 block, u16 Page,
-				 u16 PageCount)
-{
-	return emu_Write_Page_Spare(write_data, block, Page, PageCount);
-}
-
-u16 GLOB_LLD_Read_Page_Spare(u8 *read_data, u32 block, u16 Page,
-				u16 PageCount)
-{
-	return emu_Read_Page_Spare(read_data, block, Page, PageCount);
-}
-
-u16  GLOB_LLD_Get_Bad_Block(u32 block)
-{
-    return  emu_Get_Bad_Block(block);
-}
-
-#endif /* FLASH_EMU */
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-#if FLASH_MTD		/* vector all the LLD calls to the LLD_MTD code */
-#include "lld_mtd.h"
-#include "lld_cdma.h"
-
-/* common functions: */
-u16 GLOB_LLD_Flash_Reset(void)
-{
-	return mtd_Flash_Reset();
-}
-
-u16 GLOB_LLD_Read_Device_ID(void)
-{
-	return mtd_Read_Device_ID();
-}
-
-int GLOB_LLD_Flash_Release(void)
-{
-	return mtd_Flash_Release();
-}
-
-u16 GLOB_LLD_Flash_Init(void)
-{
-	return mtd_Flash_Init();
-}
-
-u16 GLOB_LLD_Erase_Block(u32 block_add)
-{
-	return mtd_Erase_Block(block_add);
-}
-
-u16 GLOB_LLD_Write_Page_Main(u8 *write_data, u32 block, u16 Page,
-				u16 PageCount)
-{
-	return mtd_Write_Page_Main(write_data, block, Page, PageCount);
-}
-
-u16 GLOB_LLD_Read_Page_Main(u8 *read_data, u32 block, u16 Page,
-			       u16 PageCount)
-{
-	return mtd_Read_Page_Main(read_data, block, Page, PageCount);
-}
-
-u16 GLOB_LLD_Read_Page_Main_Polling(u8 *read_data,
-			u32 block, u16 page, u16 page_count)
-{
-	return mtd_Read_Page_Main(read_data, block, page, page_count);
-}
-
-u16 GLOB_LLD_Write_Page_Main_Spare(u8 *write_data, u32 block,
-				      u16 Page, u16 PageCount)
-{
-	return mtd_Write_Page_Main_Spare(write_data, block, Page, PageCount);
-}
-
-u16 GLOB_LLD_Read_Page_Main_Spare(u8 *read_data, u32 block,
-				     u16 Page, u16 PageCount)
-{
-	return mtd_Read_Page_Main_Spare(read_data, block, Page, PageCount);
-}
-
-u16 GLOB_LLD_Write_Page_Spare(u8 *write_data, u32 block, u16 Page,
-				 u16 PageCount)
-{
-	return mtd_Write_Page_Spare(write_data, block, Page, PageCount);
-}
-
-u16 GLOB_LLD_Read_Page_Spare(u8 *read_data, u32 block, u16 Page,
-				u16 PageCount)
-{
-	return mtd_Read_Page_Spare(read_data, block, Page, PageCount);
-}
-
-u16  GLOB_LLD_Get_Bad_Block(u32 block)
-{
-    return  mtd_Get_Bad_Block(block);
-}
-
-#endif /* FLASH_MTD */
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-#if FLASH_NAND	/* vector all the LLD calls to the NAND controller code */
-#include "lld_nand.h"
-#include "lld_cdma.h"
-#include "flash.h"
-
-/* common functions for LLD_NAND */
-void GLOB_LLD_ECC_Control(int enable)
-{
-	NAND_ECC_Ctrl(enable);
-}
-
-/* common functions for LLD_NAND */
-u16 GLOB_LLD_Flash_Reset(void)
-{
-	return NAND_Flash_Reset();
-}
-
-u16 GLOB_LLD_Read_Device_ID(void)
-{
-	return NAND_Read_Device_ID();
-}
-
-u16 GLOB_LLD_UnlockArrayAll(void)
-{
-	return NAND_UnlockArrayAll();
-}
-
-u16 GLOB_LLD_Flash_Init(void)
-{
-	return NAND_Flash_Init();
-}
-
-int GLOB_LLD_Flash_Release(void)
-{
-	return nand_release_spectra();
-}
-
-u16 GLOB_LLD_Erase_Block(u32 block_add)
-{
-	return NAND_Erase_Block(block_add);
-}
-
-
-u16 GLOB_LLD_Write_Page_Main(u8 *write_data, u32 block, u16 Page,
-				u16 PageCount)
-{
-	return NAND_Write_Page_Main(write_data, block, Page, PageCount);
-}
-
-u16 GLOB_LLD_Read_Page_Main(u8 *read_data, u32 block, u16 page,
-			       u16 page_count)
-{
-	if (page_count == 1) /* Using polling to improve read speed */
-		return NAND_Read_Page_Main_Polling(read_data, block, page, 1);
-	else
-		return NAND_Read_Page_Main(read_data, block, page, page_count);
-}
-
-u16 GLOB_LLD_Read_Page_Main_Polling(u8 *read_data,
-			u32 block, u16 page, u16 page_count)
-{
-	return NAND_Read_Page_Main_Polling(read_data,
-			block, page, page_count);
-}
-
-u16 GLOB_LLD_Write_Page_Main_Spare(u8 *write_data, u32 block,
-				      u16 Page, u16 PageCount)
-{
-	return NAND_Write_Page_Main_Spare(write_data, block, Page, PageCount);
-}
-
-u16 GLOB_LLD_Write_Page_Spare(u8 *write_data, u32 block, u16 Page,
-				 u16 PageCount)
-{
-	return NAND_Write_Page_Spare(write_data, block, Page, PageCount);
-}
-
-u16 GLOB_LLD_Read_Page_Main_Spare(u8 *read_data, u32 block,
-				     u16 page, u16 page_count)
-{
-	return NAND_Read_Page_Main_Spare(read_data, block, page, page_count);
-}
-
-u16 GLOB_LLD_Read_Page_Spare(u8 *read_data, u32 block, u16 Page,
-				u16 PageCount)
-{
-	return NAND_Read_Page_Spare(read_data, block, Page, PageCount);
-}
-
-u16  GLOB_LLD_Get_Bad_Block(u32 block)
-{
-	return  NAND_Get_Bad_Block(block);
-}
-
-#if CMD_DMA
-u16 GLOB_LLD_Event_Status(void)
-{
-	return CDMA_Event_Status();
-}
-
-u16 glob_lld_execute_cmds(void)
-{
-	return CDMA_Execute_CMDs();
-}
-
-u16 GLOB_LLD_MemCopy_CMD(u8 *dest, u8 *src,
-			u32 ByteCount, u16 flag)
-{
-	/* Replace the hardware memcopy with software memcpy function */
-	if (CDMA_Execute_CMDs())
-		return FAIL;
-	memcpy(dest, src, ByteCount);
-	return PASS;
-
-	/* return CDMA_MemCopy_CMD(dest, src, ByteCount, flag); */
-}
-
-u16 GLOB_LLD_Erase_Block_cdma(u32 block, u16 flags)
-{
-	return CDMA_Data_CMD(ERASE_CMD, 0, block, 0, 0, flags);
-}
-
-u16 GLOB_LLD_Write_Page_Main_cdma(u8 *data, u32 block, u16 page, u16 count)
-{
-	return CDMA_Data_CMD(WRITE_MAIN_CMD, data, block, page, count, 0);
-}
-
-u16 GLOB_LLD_Read_Page_Main_cdma(u8 *data, u32 block, u16 page,
-				u16 count, u16 flags)
-{
-	return CDMA_Data_CMD(READ_MAIN_CMD, data, block, page, count, flags);
-}
-
-u16 GLOB_LLD_Write_Page_Main_Spare_cdma(u8 *data, u32 block, u16 page,
-					u16 count, u16 flags)
-{
-	return CDMA_Data_CMD(WRITE_MAIN_SPARE_CMD,
-			data, block, page, count, flags);
-}
-
-u16 GLOB_LLD_Read_Page_Main_Spare_cdma(u8 *data,
-				u32 block, u16 page, u16 count)
-{
-	return CDMA_Data_CMD(READ_MAIN_SPARE_CMD, data, block, page, count,
-			LLD_CMD_FLAG_MODE_CDMA);
-}
-
-#endif /* CMD_DMA */
-#endif /* FLASH_NAND */
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-
-/* end of LLD.c */
diff --git a/drivers/staging/spectra/lld.h b/drivers/staging/spectra/lld.h
deleted file mode 100644
index d3738e0e1fea..000000000000
--- a/drivers/staging/spectra/lld.h
+++ /dev/null
@@ -1,111 +0,0 @@
-/*
- * NAND Flash Controller Device Driver
- * Copyright (c) 2009, Intel Corporation and its suppliers.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- */
-
-
-
-#ifndef _LLD_
-#define _LLD_
-
-#include "ffsport.h"
-#include "spectraswconfig.h"
-#include "flash.h"
-
-#define GOOD_BLOCK 0
-#define DEFECTIVE_BLOCK 1
-#define READ_ERROR 2
-
-#define CLK_X  5
-#define CLK_MULTI 4
-
-/* Typedefs */
-
-/*  prototypes: API for LLD */
-/* Currently, Write_Page_Main
- * 			  MemCopy
- * 			  Read_Page_Main_Spare
- * do not have flag because they were not implemented prior to this
- * They are not being added to keep changes to a minimum for now.
- * Currently, they are not required (only reqd for Wr_P_M_S.)
- * Later on, these NEED to be changed.
- */
-
-extern void GLOB_LLD_ECC_Control(int enable);
-
-extern u16 GLOB_LLD_Flash_Reset(void);
-
-extern u16 GLOB_LLD_Read_Device_ID(void);
-
-extern u16 GLOB_LLD_UnlockArrayAll(void);
-
-extern u16 GLOB_LLD_Flash_Init(void);
-
-extern int GLOB_LLD_Flash_Release(void);
-
-extern u16 GLOB_LLD_Erase_Block(u32 block_add);
-
-extern u16 GLOB_LLD_Write_Page_Main(u8 *write_data,
-	u32 block, u16 Page, u16 PageCount);
-
-extern u16 GLOB_LLD_Read_Page_Main(u8 *read_data,
-	u32 block, u16 page, u16 page_count);
-
-extern u16 GLOB_LLD_Read_Page_Main_Polling(u8 *read_data,
-	u32 block, u16 page, u16 page_count);
-
-extern u16 GLOB_LLD_Write_Page_Main_Spare(u8 *write_data,
-	u32 block, u16 Page, u16 PageCount);
-
-extern u16 GLOB_LLD_Write_Page_Spare(u8 *write_data,
-	u32 block, u16 Page, u16 PageCount);
-
-extern u16 GLOB_LLD_Read_Page_Main_Spare(u8 *read_data,
-	u32 block, u16 page, u16 page_count);
-
-extern u16 GLOB_LLD_Read_Page_Spare(u8 *read_data,
-	u32 block, u16 Page, u16 PageCount);
-
-extern u16  GLOB_LLD_Get_Bad_Block(u32 block);
-
-extern u16 GLOB_LLD_Event_Status(void);
-
-extern u16 GLOB_LLD_MemCopy_CMD(u8 *dest, u8 *src, u32 ByteCount, u16 flag);
-
-extern u16 glob_lld_execute_cmds(void);
-
-extern u16 GLOB_LLD_Erase_Block_cdma(u32 block, u16 flags);
-
-extern u16 GLOB_LLD_Write_Page_Main_cdma(u8 *data,
-	u32 block, u16 page, u16 count);
-
-extern u16 GLOB_LLD_Read_Page_Main_cdma(u8 *data,
-	u32 block, u16 page, u16 count, u16 flags);
-
-extern u16 GLOB_LLD_Write_Page_Main_Spare_cdma(u8 *data,
-	u32 block, u16 page, u16 count, u16 flags);
-
-extern u16 GLOB_LLD_Read_Page_Main_Spare_cdma(u8 *data,
-	u32 block, u16 page, u16 count);
-
-#define LLD_CMD_FLAG_ORDER_BEFORE_REST		(0x1)
-#define LLD_CMD_FLAG_MODE_CDMA			(0x8)
-
-
-#endif /*_LLD_ */
-
-
diff --git a/drivers/staging/spectra/lld_cdma.c b/drivers/staging/spectra/lld_cdma.c
deleted file mode 100644
index c6e76103d43c..000000000000
--- a/drivers/staging/spectra/lld_cdma.c
+++ /dev/null
@@ -1,910 +0,0 @@
-/*
- * NAND Flash Controller Device Driver
- * Copyright (c) 2009, Intel Corporation and its suppliers.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- */
-
-#include <linux/fs.h>
-#include <linux/slab.h>
-
-#include "spectraswconfig.h"
-#include "lld.h"
-#include "lld_nand.h"
-#include "lld_cdma.h"
-#include "lld_emu.h"
-#include "flash.h"
-#include "nand_regs.h"
-
-#define MAX_PENDING_CMDS    4
-#define MODE_02             (0x2 << 26)
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     CDMA_Data_Cmd
-* Inputs:   cmd code (aligned for hw)
-*               data: pointer to source or destination
-*               block: block address
-*               page: page address
-*               num: num pages to transfer
-* Outputs:      PASS
-* Description:  This function takes the parameters and puts them
-*                   into the "pending commands" array.
-*               It does not parse or validate the parameters.
-*               The array index is same as the tag.
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-u16 CDMA_Data_CMD(u8 cmd, u8 *data, u32 block, u16 page, u16 num, u16 flags)
-{
-	u8 bank;
-
-	nand_dbg_print(NAND_DBG_DEBUG, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	if (0 == cmd)
-		nand_dbg_print(NAND_DBG_DEBUG,
-		"%s, Line %d, Illegal cmd (0)\n", __FILE__, __LINE__);
-
-	/* If a command of another bank comes, then first execute */
-	/* pending commands of the current bank, then set the new */
-	/* bank as current bank */
-	bank = block / (DeviceInfo.wTotalBlocks / totalUsedBanks);
-	if (bank != info.flash_bank) {
-		nand_dbg_print(NAND_DBG_WARN,
-			"Will access new bank. old bank: %d, new bank: %d\n",
-			info.flash_bank, bank);
-		if (CDMA_Execute_CMDs()) {
-			printk(KERN_ERR "CDMA_Execute_CMDs fail!\n");
-			return FAIL;
-		}
-		info.flash_bank = bank;
-	}
-
-	info.pcmds[info.pcmds_num].CMD = cmd;
-	info.pcmds[info.pcmds_num].DataAddr = data;
-	info.pcmds[info.pcmds_num].Block = block;
-	info.pcmds[info.pcmds_num].Page = page;
-	info.pcmds[info.pcmds_num].PageCount = num;
-	info.pcmds[info.pcmds_num].DataDestAddr = 0;
-	info.pcmds[info.pcmds_num].DataSrcAddr = 0;
-	info.pcmds[info.pcmds_num].MemCopyByteCnt = 0;
-	info.pcmds[info.pcmds_num].Flags = flags;
-	info.pcmds[info.pcmds_num].Status = 0xB0B;
-
-	switch (cmd) {
-	case WRITE_MAIN_SPARE_CMD:
-		Conv_Main_Spare_Data_Log2Phy_Format(data, num);
-		break;
-	case WRITE_SPARE_CMD:
-		Conv_Spare_Data_Log2Phy_Format(data);
-		break;
-	default:
-		break;
-	}
-
-	info.pcmds_num++;
-
-	if (info.pcmds_num >= MAX_PENDING_CMDS) {
-		if (CDMA_Execute_CMDs()) {
-			printk(KERN_ERR "CDMA_Execute_CMDs fail!\n");
-			return FAIL;
-		}
-	}
-
-	return PASS;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     CDMA_MemCopy_CMD
-* Inputs:       dest: pointer to destination
-*               src:  pointer to source
-*               count: num bytes to transfer
-* Outputs:      PASS
-* Description:  This function takes the parameters and puts them
-*                   into the "pending commands" array.
-*               It does not parse or validate the parameters.
-*               The array index is same as the tag.
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-u16 CDMA_MemCopy_CMD(u8 *dest, u8 *src, u32 byte_cnt, u16 flags)
-{
-	nand_dbg_print(NAND_DBG_DEBUG, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	info.pcmds[info.pcmds_num].CMD = MEMCOPY_CMD;
-	info.pcmds[info.pcmds_num].DataAddr = 0;
-	info.pcmds[info.pcmds_num].Block = 0;
-	info.pcmds[info.pcmds_num].Page = 0;
-	info.pcmds[info.pcmds_num].PageCount = 0;
-	info.pcmds[info.pcmds_num].DataDestAddr = dest;
-	info.pcmds[info.pcmds_num].DataSrcAddr = src;
-	info.pcmds[info.pcmds_num].MemCopyByteCnt = byte_cnt;
-	info.pcmds[info.pcmds_num].Flags = flags;
-	info.pcmds[info.pcmds_num].Status = 0xB0B;
-
-	info.pcmds_num++;
-
-	if (info.pcmds_num >= MAX_PENDING_CMDS) {
-		if (CDMA_Execute_CMDs()) {
-			printk(KERN_ERR "CDMA_Execute_CMDs fail!\n");
-			return FAIL;
-		}
-	}
-
-	return PASS;
-}
-
-#if 0
-/* Prints the PendingCMDs array */
-void print_pending_cmds(void)
-{
-	u16 i;
-
-	nand_dbg_print(NAND_DBG_DEBUG, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	for (i = 0; i < info.pcmds_num; i++) {
-		nand_dbg_print(NAND_DBG_DEBUG, "\ni: %d\n", i);
-		switch (info.pcmds[i].CMD) {
-		case ERASE_CMD:
-			nand_dbg_print(NAND_DBG_DEBUG,
-				"Erase Command (0x%x)\n",
-				info.pcmds[i].CMD);
-			break;
-		case WRITE_MAIN_CMD:
-			nand_dbg_print(NAND_DBG_DEBUG,
-				"Write Main Command (0x%x)\n",
-				info.pcmds[i].CMD);
-			break;
-		case WRITE_MAIN_SPARE_CMD:
-			nand_dbg_print(NAND_DBG_DEBUG,
-				"Write Main Spare Command (0x%x)\n",
-				info.pcmds[i].CMD);
-			break;
-		case READ_MAIN_SPARE_CMD:
-			nand_dbg_print(NAND_DBG_DEBUG,
-				"Read Main Spare Command (0x%x)\n",
-				info.pcmds[i].CMD);
-			break;
-		case READ_MAIN_CMD:
-			nand_dbg_print(NAND_DBG_DEBUG,
-				"Read Main Command (0x%x)\n",
-				info.pcmds[i].CMD);
-			break;
-		case MEMCOPY_CMD:
-			nand_dbg_print(NAND_DBG_DEBUG,
-				"Memcopy Command (0x%x)\n",
-				info.pcmds[i].CMD);
-			break;
-		case DUMMY_CMD:
-			nand_dbg_print(NAND_DBG_DEBUG,
-				"Dummy Command (0x%x)\n",
-				info.pcmds[i].CMD);
-			break;
-		default:
-			nand_dbg_print(NAND_DBG_DEBUG,
-				"Illegal Command (0x%x)\n",
-				info.pcmds[i].CMD);
-			break;
-		}
-
-		nand_dbg_print(NAND_DBG_DEBUG, "DataAddr: 0x%x\n",
-			(u32)info.pcmds[i].DataAddr);
-		nand_dbg_print(NAND_DBG_DEBUG, "Block: %d\n",
-			info.pcmds[i].Block);
-		nand_dbg_print(NAND_DBG_DEBUG, "Page: %d\n",
-			info.pcmds[i].Page);
-		nand_dbg_print(NAND_DBG_DEBUG, "PageCount: %d\n",
-			info.pcmds[i].PageCount);
-		nand_dbg_print(NAND_DBG_DEBUG, "DataDestAddr: 0x%x\n",
-			(u32)info.pcmds[i].DataDestAddr);
-		nand_dbg_print(NAND_DBG_DEBUG, "DataSrcAddr: 0x%x\n",
-			(u32)info.pcmds[i].DataSrcAddr);
-		nand_dbg_print(NAND_DBG_DEBUG, "MemCopyByteCnt: %d\n",
-			info.pcmds[i].MemCopyByteCnt);
-		nand_dbg_print(NAND_DBG_DEBUG, "Flags: 0x%x\n",
-			info.pcmds[i].Flags);
-		nand_dbg_print(NAND_DBG_DEBUG, "Status: 0x%x\n",
-			info.pcmds[i].Status);
-	}
-}
-
-/* Print the CDMA descriptors */
-void print_cdma_descriptors(void)
-{
-	struct cdma_descriptor *pc;
-	int i;
-
-	pc = (struct cdma_descriptor *)info.cdma_desc_buf;
-
-	nand_dbg_print(NAND_DBG_DEBUG, "\nWill dump cdma descriptors:\n");
-
-	for (i = 0; i < info.cdma_num; i++) {
-		nand_dbg_print(NAND_DBG_DEBUG, "\ni: %d\n", i);
-		nand_dbg_print(NAND_DBG_DEBUG,
-			"NxtPointerHi: 0x%x, NxtPointerLo: 0x%x\n",
-			pc[i].NxtPointerHi, pc[i].NxtPointerLo);
-		nand_dbg_print(NAND_DBG_DEBUG,
-			"FlashPointerHi: 0x%x, FlashPointerLo: 0x%x\n",
-			pc[i].FlashPointerHi, pc[i].FlashPointerLo);
-		nand_dbg_print(NAND_DBG_DEBUG, "CommandType: 0x%x\n",
-			pc[i].CommandType);
-		nand_dbg_print(NAND_DBG_DEBUG,
-			"MemAddrHi: 0x%x, MemAddrLo: 0x%x\n",
-			pc[i].MemAddrHi, pc[i].MemAddrLo);
-		nand_dbg_print(NAND_DBG_DEBUG, "CommandFlags: 0x%x\n",
-			pc[i].CommandFlags);
-		nand_dbg_print(NAND_DBG_DEBUG, "Channel: %d, Status: 0x%x\n",
-			pc[i].Channel, pc[i].Status);
-		nand_dbg_print(NAND_DBG_DEBUG,
-			"MemCopyPointerHi: 0x%x, MemCopyPointerLo: 0x%x\n",
-			pc[i].MemCopyPointerHi, pc[i].MemCopyPointerLo);
-		nand_dbg_print(NAND_DBG_DEBUG,
-			"Reserved12: 0x%x, Reserved13: 0x%x, "
-			"Reserved14: 0x%x, pcmd: %d\n",
-			pc[i].Reserved12, pc[i].Reserved13,
-			pc[i].Reserved14, pc[i].pcmd);
-	}
-}
-
-/* Print the Memory copy descriptors */
-static void print_memcp_descriptors(void)
-{
-	struct memcpy_descriptor *pm;
-	int i;
-
-	pm = (struct memcpy_descriptor *)info.memcp_desc_buf;
-
-	nand_dbg_print(NAND_DBG_DEBUG, "\nWill dump mem_cpy descriptors:\n");
-
-	for (i = 0; i < info.cdma_num; i++) {
-		nand_dbg_print(NAND_DBG_DEBUG, "\ni: %d\n", i);
-		nand_dbg_print(NAND_DBG_DEBUG,
-			"NxtPointerHi: 0x%x, NxtPointerLo: 0x%x\n",
-			pm[i].NxtPointerHi, pm[i].NxtPointerLo);
-		nand_dbg_print(NAND_DBG_DEBUG,
-			"SrcAddrHi: 0x%x, SrcAddrLo: 0x%x\n",
-			pm[i].SrcAddrHi, pm[i].SrcAddrLo);
-		nand_dbg_print(NAND_DBG_DEBUG,
-			"DestAddrHi: 0x%x, DestAddrLo: 0x%x\n",
-			pm[i].DestAddrHi, pm[i].DestAddrLo);
-		nand_dbg_print(NAND_DBG_DEBUG, "XferSize: %d\n",
-			pm[i].XferSize);
-		nand_dbg_print(NAND_DBG_DEBUG, "MemCopyFlags: 0x%x\n",
-			pm[i].MemCopyFlags);
-		nand_dbg_print(NAND_DBG_DEBUG, "MemCopyStatus: %d\n",
-			pm[i].MemCopyStatus);
-		nand_dbg_print(NAND_DBG_DEBUG, "reserved9: 0x%x\n",
-			pm[i].reserved9);
-		nand_dbg_print(NAND_DBG_DEBUG, "reserved10: 0x%x\n",
-			pm[i].reserved10);
-		nand_dbg_print(NAND_DBG_DEBUG, "reserved11: 0x%x\n",
-			pm[i].reserved11);
-		nand_dbg_print(NAND_DBG_DEBUG, "reserved12: 0x%x\n",
-			pm[i].reserved12);
-		nand_dbg_print(NAND_DBG_DEBUG, "reserved13: 0x%x\n",
-			pm[i].reserved13);
-		nand_dbg_print(NAND_DBG_DEBUG, "reserved14: 0x%x\n",
-			pm[i].reserved14);
-		nand_dbg_print(NAND_DBG_DEBUG, "reserved15: 0x%x\n",
-			pm[i].reserved15);
-	}
-}
-#endif
-
-/* Reset cdma_descriptor chain to 0 */
-static void reset_cdma_desc(int i)
-{
-	struct cdma_descriptor *ptr;
-
-	BUG_ON(i >= MAX_DESCS);
-
-	ptr = (struct cdma_descriptor *)info.cdma_desc_buf;
-
-	ptr[i].NxtPointerHi = 0;
-	ptr[i].NxtPointerLo = 0;
-	ptr[i].FlashPointerHi = 0;
-	ptr[i].FlashPointerLo = 0;
-	ptr[i].CommandType = 0;
-	ptr[i].MemAddrHi = 0;
-	ptr[i].MemAddrLo = 0;
-	ptr[i].CommandFlags = 0;
-	ptr[i].Channel = 0;
-	ptr[i].Status = 0;
-	ptr[i].MemCopyPointerHi = 0;
-	ptr[i].MemCopyPointerLo = 0;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     CDMA_UpdateEventStatus
-* Inputs:       none
-* Outputs:      none
-* Description:  This function update the event status of all the channels
-*               when an error condition is reported.
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-void CDMA_UpdateEventStatus(void)
-{
-	int i, j, active_chan;
-	struct cdma_descriptor *ptr;
-
-	nand_dbg_print(NAND_DBG_DEBUG, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	ptr = (struct cdma_descriptor *)info.cdma_desc_buf;
-
-	for (j = 0; j < info.cdma_num; j++) {
-		/* Check for the descriptor with failure */
-		if ((ptr[j].Status & CMD_DMA_DESC_FAIL))
-			break;
-
-	}
-
-	/* All the previous cmd's status for this channel must be good */
-	for (i = 0; i < j; i++) {
-		if (ptr[i].pcmd != 0xff)
-			info.pcmds[ptr[i].pcmd].Status = CMD_PASS;
-	}
-
-	/* Abort the channel with type 0 reset command. It resets the */
-	/* selected channel after the descriptor completes the flash */
-	/* operation and status has been updated for the descriptor. */
-	/* Memory Copy and Sync associated with this descriptor will */
-	/* not be executed */
-	active_chan = ioread32(FlashReg + CHNL_ACTIVE);
-	if ((active_chan & (1 << info.flash_bank)) == (1 << info.flash_bank)) {
-		iowrite32(MODE_02 | (0 << 4), FlashMem); /* Type 0 reset */
-		iowrite32((0xF << 4) | info.flash_bank, FlashMem + 0x10);
-	} else { /* Should not reached here */
-		printk(KERN_ERR "Error! Used bank is not set in"
-			" reg CHNL_ACTIVE\n");
-	}
-}
-
-static void cdma_trans(u16 chan)
-{
-	u32 addr;
-
-	addr = info.cdma_desc;
-
-	iowrite32(MODE_10 | (chan << 24), FlashMem);
-	iowrite32((1 << 7) | chan, FlashMem + 0x10);
-
-	iowrite32(MODE_10 | (chan << 24) | ((0x0FFFF & (addr >> 16)) << 8),
-		FlashMem);
-	iowrite32((1 << 7) | (1 << 4) | 0, FlashMem + 0x10);
-
-	iowrite32(MODE_10 | (chan << 24) | ((0x0FFFF & addr) << 8), FlashMem);
-	iowrite32((1 << 7) | (1 << 5) | 0, FlashMem + 0x10);
-
-	iowrite32(MODE_10 | (chan << 24), FlashMem);
-	iowrite32((1 << 7) | (1 << 5) | (1 << 4) | 0, FlashMem + 0x10);
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     CDMA_Execute_CMDs (for use with CMD_DMA)
-* Inputs:       tag_count:  the number of pending cmds to do
-* Outputs:      PASS/FAIL
-* Description:  Build the SDMA chain(s) by making one CMD-DMA descriptor
-*               for each pending command, start the CDMA engine, and return.
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-u16 CDMA_Execute_CMDs(void)
-{
-	int i, ret;
-	u64 flash_add;
-	u32 ptr;
-	dma_addr_t map_addr, next_ptr;
-	u16 status = PASS;
-	u16 tmp_c;
-	struct cdma_descriptor *pc;
-	struct memcpy_descriptor *pm;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	/* No pending cmds to execute, just exit */
-	if (0 == info.pcmds_num) {
-		nand_dbg_print(NAND_DBG_TRACE,
-			"No pending cmds to execute. Just exit.\n");
-		return PASS;
-	}
-
-	for (i = 0; i < MAX_DESCS; i++)
-		reset_cdma_desc(i);
-
-	pc = (struct cdma_descriptor *)info.cdma_desc_buf;
-	pm = (struct memcpy_descriptor *)info.memcp_desc_buf;
-
-	info.cdma_desc = virt_to_bus(info.cdma_desc_buf);
-	info.memcp_desc = virt_to_bus(info.memcp_desc_buf);
-	next_ptr = info.cdma_desc;
-	info.cdma_num = 0;
-
-	for (i = 0; i < info.pcmds_num; i++) {
-		if (info.pcmds[i].Block >= DeviceInfo.wTotalBlocks) {
-			info.pcmds[i].Status = CMD_NOT_DONE;
-			continue;
-		}
-
-		next_ptr += sizeof(struct cdma_descriptor);
-		pc[info.cdma_num].NxtPointerHi = next_ptr >> 16;
-		pc[info.cdma_num].NxtPointerLo = next_ptr & 0xffff;
-
-		/* Use the Block offset within a bank */
-		tmp_c = info.pcmds[i].Block /
-			(DeviceInfo.wTotalBlocks / totalUsedBanks);
-		flash_add = (u64)(info.pcmds[i].Block - tmp_c *
-			(DeviceInfo.wTotalBlocks / totalUsedBanks)) *
-			DeviceInfo.wBlockDataSize +
-			(u64)(info.pcmds[i].Page) *
-			DeviceInfo.wPageDataSize;
-
-		ptr = MODE_10 | (info.flash_bank << 24) |
-			(u32)GLOB_u64_Div(flash_add,
-				DeviceInfo.wPageDataSize);
-		pc[info.cdma_num].FlashPointerHi = ptr >> 16;
-		pc[info.cdma_num].FlashPointerLo = ptr & 0xffff;
-
-		if ((info.pcmds[i].CMD == WRITE_MAIN_SPARE_CMD) ||
-			(info.pcmds[i].CMD == READ_MAIN_SPARE_CMD)) {
-			/* Descriptor to set Main+Spare Access Mode */
-			pc[info.cdma_num].CommandType = 0x43;
-			pc[info.cdma_num].CommandFlags =
-				(0 << 10) | (1 << 9) | (0 << 8) | 0x40;
-			pc[info.cdma_num].MemAddrHi = 0;
-			pc[info.cdma_num].MemAddrLo = 0;
-			pc[info.cdma_num].Channel = 0;
-			pc[info.cdma_num].Status = 0;
-			pc[info.cdma_num].pcmd = i;
-
-			info.cdma_num++;
-			BUG_ON(info.cdma_num >= MAX_DESCS);
-
-			reset_cdma_desc(info.cdma_num);
-			next_ptr += sizeof(struct cdma_descriptor);
-			pc[info.cdma_num].NxtPointerHi = next_ptr >> 16;
-			pc[info.cdma_num].NxtPointerLo = next_ptr & 0xffff;
-			pc[info.cdma_num].FlashPointerHi = ptr >> 16;
-			pc[info.cdma_num].FlashPointerLo = ptr & 0xffff;
-		}
-
-		switch (info.pcmds[i].CMD) {
-		case ERASE_CMD:
-			pc[info.cdma_num].CommandType = 1;
-			pc[info.cdma_num].CommandFlags =
-				(0 << 10) | (1 << 9) | (0 << 8) | 0x40;
-			pc[info.cdma_num].MemAddrHi = 0;
-			pc[info.cdma_num].MemAddrLo = 0;
-			break;
-
-		case WRITE_MAIN_CMD:
-			pc[info.cdma_num].CommandType =
-				0x2100 | info.pcmds[i].PageCount;
-			pc[info.cdma_num].CommandFlags =
-				(0 << 10) | (1 << 9) | (0 << 8) | 0x40;
-			map_addr = virt_to_bus(info.pcmds[i].DataAddr);
-			pc[info.cdma_num].MemAddrHi = map_addr >> 16;
-			pc[info.cdma_num].MemAddrLo = map_addr & 0xffff;
-			break;
-
-		case READ_MAIN_CMD:
-			pc[info.cdma_num].CommandType =
-				0x2000 | info.pcmds[i].PageCount;
-			pc[info.cdma_num].CommandFlags =
-				(0 << 10) | (1 << 9) | (0 << 8) | 0x40;
-			map_addr = virt_to_bus(info.pcmds[i].DataAddr);
-			pc[info.cdma_num].MemAddrHi = map_addr >> 16;
-			pc[info.cdma_num].MemAddrLo = map_addr & 0xffff;
-			break;
-
-		case WRITE_MAIN_SPARE_CMD:
-			pc[info.cdma_num].CommandType =
-				0x2100 | info.pcmds[i].PageCount;
-			pc[info.cdma_num].CommandFlags =
-				(0 << 10) | (1 << 9) | (0 << 8) | 0x40;
-			map_addr = virt_to_bus(info.pcmds[i].DataAddr);
-			pc[info.cdma_num].MemAddrHi = map_addr >> 16;
-			pc[info.cdma_num].MemAddrLo = map_addr & 0xffff;
-			break;
-
-		case READ_MAIN_SPARE_CMD:
-			pc[info.cdma_num].CommandType =
-				0x2000 | info.pcmds[i].PageCount;
-			pc[info.cdma_num].CommandFlags =
-				(0 << 10) | (1 << 9) | (0 << 8) | 0x40;
-			map_addr = virt_to_bus(info.pcmds[i].DataAddr);
-			pc[info.cdma_num].MemAddrHi = map_addr >> 16;
-			pc[info.cdma_num].MemAddrLo = map_addr & 0xffff;
-			break;
-
-		case MEMCOPY_CMD:
-			pc[info.cdma_num].CommandType = 0xFFFF; /* NOP cmd */
-			/* Set bit 11 to let the CDMA engine continue to */
-			/* execute only after it has finished processing   */
-			/* the memcopy descriptor.                        */
-			/* Also set bit 10 and bit 9 to 1                  */
-			pc[info.cdma_num].CommandFlags = 0x0E40;
-			map_addr = info.memcp_desc + info.cdma_num *
-					sizeof(struct memcpy_descriptor);
-			pc[info.cdma_num].MemCopyPointerHi = map_addr >> 16;
-			pc[info.cdma_num].MemCopyPointerLo = map_addr & 0xffff;
-
-			pm[info.cdma_num].NxtPointerHi = 0;
-			pm[info.cdma_num].NxtPointerLo = 0;
-
-			map_addr = virt_to_bus(info.pcmds[i].DataSrcAddr);
-			pm[info.cdma_num].SrcAddrHi = map_addr >> 16;
-			pm[info.cdma_num].SrcAddrLo = map_addr & 0xffff;
-			map_addr = virt_to_bus(info.pcmds[i].DataDestAddr);
-			pm[info.cdma_num].DestAddrHi = map_addr >> 16;
-			pm[info.cdma_num].DestAddrLo = map_addr & 0xffff;
-
-			pm[info.cdma_num].XferSize =
-				info.pcmds[i].MemCopyByteCnt;
-			pm[info.cdma_num].MemCopyFlags =
-				(0 << 15 | 0 << 14 | 27 << 8 | 0x40);
-			pm[info.cdma_num].MemCopyStatus = 0;
-			break;
-
-		case DUMMY_CMD:
-		default:
-			pc[info.cdma_num].CommandType = 0XFFFF;
-			pc[info.cdma_num].CommandFlags =
-				(0 << 10) | (1 << 9) | (0 << 8) | 0x40;
-			pc[info.cdma_num].MemAddrHi = 0;
-			pc[info.cdma_num].MemAddrLo = 0;
-			break;
-		}
-
-		pc[info.cdma_num].Channel = 0;
-		pc[info.cdma_num].Status = 0;
-		pc[info.cdma_num].pcmd = i;
-
-		info.cdma_num++;
-		BUG_ON(info.cdma_num >= MAX_DESCS);
-
-		if ((info.pcmds[i].CMD == WRITE_MAIN_SPARE_CMD) ||
-			(info.pcmds[i].CMD == READ_MAIN_SPARE_CMD)) {
-			/* Descriptor to set back Main Area Access Mode */
-			reset_cdma_desc(info.cdma_num);
-			next_ptr += sizeof(struct cdma_descriptor);
-			pc[info.cdma_num].NxtPointerHi = next_ptr >> 16;
-			pc[info.cdma_num].NxtPointerLo = next_ptr & 0xffff;
-
-			pc[info.cdma_num].FlashPointerHi = ptr >> 16;
-			pc[info.cdma_num].FlashPointerLo = ptr & 0xffff;
-
-			pc[info.cdma_num].CommandType = 0x42;
-			pc[info.cdma_num].CommandFlags =
-				(0 << 10) | (1 << 9) | (0 << 8) | 0x40;
-			pc[info.cdma_num].MemAddrHi = 0;
-			pc[info.cdma_num].MemAddrLo = 0;
-
-			pc[info.cdma_num].Channel = 0;
-			pc[info.cdma_num].Status = 0;
-			pc[info.cdma_num].pcmd = i;
-
-			info.cdma_num++;
-			BUG_ON(info.cdma_num >= MAX_DESCS);
-		}
-	}
-
-	/* Add a dummy descriptor at end of the CDMA chain */
-	reset_cdma_desc(info.cdma_num);
-	ptr = MODE_10 | (info.flash_bank << 24);
-	pc[info.cdma_num].FlashPointerHi = ptr >> 16;
-	pc[info.cdma_num].FlashPointerLo = ptr & 0xffff;
-	pc[info.cdma_num].CommandType = 0xFFFF; /* NOP command */
-	/* Set Command Flags for the last CDMA descriptor: */
-	/* set Continue bit (bit 9) to 0 and Interrupt bit (bit 8) to 1 */
-	pc[info.cdma_num].CommandFlags =
-		(0 << 10) | (0 << 9) | (1 << 8) | 0x40;
-	pc[info.cdma_num].pcmd = 0xff; /* Set it to an illegal value */
-	info.cdma_num++;
-	BUG_ON(info.cdma_num >= MAX_DESCS);
-
-	iowrite32(1, FlashReg + GLOBAL_INT_ENABLE);  /* Enable Interrupt */
-
-	iowrite32(1, FlashReg + DMA_ENABLE);
-	/* Wait for DMA to be enabled before issuing the next command */
-	while (!(ioread32(FlashReg + DMA_ENABLE) & DMA_ENABLE__FLAG))
-		;
-	cdma_trans(info.flash_bank);
-
-	ret = wait_for_completion_timeout(&info.complete, 50 * HZ);
-	if (!ret)
-		printk(KERN_ERR "Wait for completion timeout "
-			"in %s, Line %d\n", __FILE__, __LINE__);
-	status = info.ret;
-
-	info.pcmds_num = 0; /* Clear the pending cmds number to 0 */
-
-	return status;
-}
-
-int is_cdma_interrupt(void)
-{
-	u32 ints_b0, ints_b1, ints_b2, ints_b3, ints_cdma;
-	u32 int_en_mask;
-	u32 cdma_int_en_mask;
-
-	nand_dbg_print(NAND_DBG_DEBUG, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	/* Set the global Enable masks for only those interrupts
-	 * that are supported */
-	cdma_int_en_mask = (DMA_INTR__DESC_COMP_CHANNEL0 |
-			DMA_INTR__DESC_COMP_CHANNEL1 |
-			DMA_INTR__DESC_COMP_CHANNEL2 |
-			DMA_INTR__DESC_COMP_CHANNEL3 |
-			DMA_INTR__MEMCOPY_DESC_COMP);
-
-	int_en_mask = (INTR_STATUS0__ECC_ERR |
-		INTR_STATUS0__PROGRAM_FAIL |
-		INTR_STATUS0__ERASE_FAIL);
-
-	ints_b0 = ioread32(FlashReg + INTR_STATUS0) & int_en_mask;
-	ints_b1 = ioread32(FlashReg + INTR_STATUS1) & int_en_mask;
-	ints_b2 = ioread32(FlashReg + INTR_STATUS2) & int_en_mask;
-	ints_b3 = ioread32(FlashReg + INTR_STATUS3) & int_en_mask;
-	ints_cdma = ioread32(FlashReg + DMA_INTR) & cdma_int_en_mask;
-
-	nand_dbg_print(NAND_DBG_WARN, "ints_bank0 to ints_bank3: "
-			"0x%x, 0x%x, 0x%x, 0x%x, ints_cdma: 0x%x\n",
-			ints_b0, ints_b1, ints_b2, ints_b3, ints_cdma);
-
-	if (ints_b0 || ints_b1 || ints_b2 || ints_b3 || ints_cdma) {
-		return 1;
-	} else {
-		iowrite32(ints_b0, FlashReg + INTR_STATUS0);
-		iowrite32(ints_b1, FlashReg + INTR_STATUS1);
-		iowrite32(ints_b2, FlashReg + INTR_STATUS2);
-		iowrite32(ints_b3, FlashReg + INTR_STATUS3);
-		nand_dbg_print(NAND_DBG_DEBUG,
-			"Not a NAND controller interrupt! Ignore it.\n");
-		return 0;
-	}
-}
-
-static void update_event_status(void)
-{
-	int i;
-	struct cdma_descriptor *ptr;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	ptr = (struct cdma_descriptor *)info.cdma_desc_buf;
-
-	for (i = 0; i < info.cdma_num; i++) {
-		if (ptr[i].pcmd != 0xff)
-			info.pcmds[ptr[i].pcmd].Status = CMD_PASS;
-		if ((ptr[i].CommandType == 0x41) ||
-			(ptr[i].CommandType == 0x42) ||
-			(ptr[i].CommandType == 0x43))
-			continue;
-
-		switch (info.pcmds[ptr[i].pcmd].CMD) {
-		case READ_MAIN_SPARE_CMD:
-			Conv_Main_Spare_Data_Phy2Log_Format(
-				info.pcmds[ptr[i].pcmd].DataAddr,
-				info.pcmds[ptr[i].pcmd].PageCount);
-			break;
-		case READ_SPARE_CMD:
-			Conv_Spare_Data_Phy2Log_Format(
-				info.pcmds[ptr[i].pcmd].DataAddr);
-			break;
-		}
-	}
-}
-
-static u16 do_ecc_for_desc(u32 ch, u8 *buf, u16 page)
-{
-	u16 event = EVENT_NONE;
-	u16 err_byte;
-	u16 err_page = 0;
-	u8 err_sector;
-	u8 err_device;
-	u16 ecc_correction_info;
-	u16 err_address;
-	u32 eccSectorSize;
-	u8 *err_pos;
-
-	nand_dbg_print(NAND_DBG_WARN, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	eccSectorSize = ECC_SECTOR_SIZE * (DeviceInfo.wDevicesConnected);
-
-	do {
-		if (0 == ch)
-			err_page = ioread32(FlashReg + ERR_PAGE_ADDR0);
-		else if (1 == ch)
-			err_page = ioread32(FlashReg + ERR_PAGE_ADDR1);
-		else if (2 == ch)
-			err_page = ioread32(FlashReg + ERR_PAGE_ADDR2);
-		else if (3 == ch)
-			err_page = ioread32(FlashReg + ERR_PAGE_ADDR3);
-
-		err_address = ioread32(FlashReg + ECC_ERROR_ADDRESS);
-		err_byte = err_address & ECC_ERROR_ADDRESS__OFFSET;
-		err_sector = ((err_address &
-			ECC_ERROR_ADDRESS__SECTOR_NR) >> 12);
-
-		ecc_correction_info = ioread32(FlashReg + ERR_CORRECTION_INFO);
-		err_device = ((ecc_correction_info &
-			ERR_CORRECTION_INFO__DEVICE_NR) >> 8);
-
-		if (ecc_correction_info & ERR_CORRECTION_INFO__ERROR_TYPE) {
-			event = EVENT_UNCORRECTABLE_DATA_ERROR;
-		} else {
-			event = EVENT_CORRECTABLE_DATA_ERROR_FIXED;
-			if (err_byte < ECC_SECTOR_SIZE) {
-				err_pos = buf +
-					(err_page - page) *
-					DeviceInfo.wPageDataSize +
-					err_sector * eccSectorSize +
-					err_byte *
-					DeviceInfo.wDevicesConnected +
-					err_device;
-				*err_pos ^= ecc_correction_info &
-					ERR_CORRECTION_INFO__BYTEMASK;
-			}
-		}
-	} while (!(ecc_correction_info & ERR_CORRECTION_INFO__LAST_ERR_INFO));
-
-	return event;
-}
-
-static u16 process_ecc_int(u32 c, u16 *p_desc_num)
-{
-	struct cdma_descriptor *ptr;
-	u16 j;
-	int event = EVENT_PASS;
-
-	nand_dbg_print(NAND_DBG_WARN, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	if (c != info.flash_bank)
-		printk(KERN_ERR "Error!info.flash_bank is %d, while c is %d\n",
-				info.flash_bank, c);
-
-	ptr = (struct cdma_descriptor *)info.cdma_desc_buf;
-
-	for (j = 0; j < info.cdma_num; j++)
-		if ((ptr[j].Status & CMD_DMA_DESC_COMP) != CMD_DMA_DESC_COMP)
-			break;
-
-	*p_desc_num = j; /* Pass the descripter number found here */
-
-	if (j >= info.cdma_num) {
-		printk(KERN_ERR "Can not find the correct descriptor number "
-			"when ecc interrupt triggered!"
-			"info.cdma_num: %d, j: %d\n", info.cdma_num, j);
-		return EVENT_UNCORRECTABLE_DATA_ERROR;
-	}
-
-	event = do_ecc_for_desc(c, info.pcmds[ptr[j].pcmd].DataAddr,
-		info.pcmds[ptr[j].pcmd].Page);
-
-	if (EVENT_UNCORRECTABLE_DATA_ERROR == event) {
-		printk(KERN_ERR "Uncorrectable ECC error!"
-			"info.cdma_num: %d, j: %d, "
-			"pending cmd CMD: 0x%x, "
-			"Block: 0x%x, Page: 0x%x, PageCount: 0x%x\n",
-			info.cdma_num, j,
-			info.pcmds[ptr[j].pcmd].CMD,
-			info.pcmds[ptr[j].pcmd].Block,
-			info.pcmds[ptr[j].pcmd].Page,
-			info.pcmds[ptr[j].pcmd].PageCount);
-
-		if (ptr[j].pcmd != 0xff)
-			info.pcmds[ptr[j].pcmd].Status = CMD_FAIL;
-		CDMA_UpdateEventStatus();
-	}
-
-	return event;
-}
-
-static void process_prog_erase_fail_int(u16 desc_num)
-{
-	struct cdma_descriptor *ptr;
-
-	nand_dbg_print(NAND_DBG_DEBUG, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	ptr = (struct cdma_descriptor *)info.cdma_desc_buf;
-
-	if (ptr[desc_num].pcmd != 0xFF)
-		info.pcmds[ptr[desc_num].pcmd].Status = CMD_FAIL;
-
-	CDMA_UpdateEventStatus();
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     CDMA_Event_Status (for use with CMD_DMA)
-* Inputs:       none
-* Outputs:      Event_Status code
-* Description:  This function is called after an interrupt has happened
-*               It reads the HW status register and ...tbd
-*               It returns the appropriate event status
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-u16  CDMA_Event_Status(void)
-{
-	u32 ints_addr[4] = {INTR_STATUS0, INTR_STATUS1,
-		INTR_STATUS2, INTR_STATUS3};
-	u32 dma_intr_bit[4] = {DMA_INTR__DESC_COMP_CHANNEL0,
-		DMA_INTR__DESC_COMP_CHANNEL1,
-		DMA_INTR__DESC_COMP_CHANNEL2,
-		DMA_INTR__DESC_COMP_CHANNEL3};
-	u32 cdma_int_status, int_status;
-	u32 ecc_enable = 0;
-	u16 event = EVENT_PASS;
-	u16 cur_desc = 0;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	ecc_enable = ioread32(FlashReg + ECC_ENABLE);
-
-	while (1) {
-		int_status = ioread32(FlashReg + ints_addr[info.flash_bank]);
-		if (ecc_enable && (int_status & INTR_STATUS0__ECC_ERR)) {
-			event = process_ecc_int(info.flash_bank, &cur_desc);
-			iowrite32(INTR_STATUS0__ECC_ERR,
-				FlashReg + ints_addr[info.flash_bank]);
-			if (EVENT_UNCORRECTABLE_DATA_ERROR == event) {
-				nand_dbg_print(NAND_DBG_WARN,
-					"ints_bank0 to ints_bank3: "
-					"0x%x, 0x%x, 0x%x, 0x%x, "
-					"ints_cdma: 0x%x\n",
-					ioread32(FlashReg + INTR_STATUS0),
-					ioread32(FlashReg + INTR_STATUS1),
-					ioread32(FlashReg + INTR_STATUS2),
-					ioread32(FlashReg + INTR_STATUS3),
-					ioread32(FlashReg + DMA_INTR));
-				break;
-			}
-		} else if (int_status & INTR_STATUS0__PROGRAM_FAIL) {
-			printk(KERN_ERR "NAND program fail interrupt!\n");
-			process_prog_erase_fail_int(cur_desc);
-			event = EVENT_PROGRAM_FAILURE;
-			break;
-		} else if (int_status & INTR_STATUS0__ERASE_FAIL) {
-			printk(KERN_ERR "NAND erase fail interrupt!\n");
-			process_prog_erase_fail_int(cur_desc);
-			event = EVENT_ERASE_FAILURE;
-			break;
-		} else {
-			cdma_int_status = ioread32(FlashReg + DMA_INTR);
-			if (cdma_int_status & dma_intr_bit[info.flash_bank]) {
-				iowrite32(dma_intr_bit[info.flash_bank],
-					FlashReg + DMA_INTR);
-				update_event_status();
-				event = EVENT_PASS;
-				break;
-			}
-		}
-	}
-
-	int_status = ioread32(FlashReg + ints_addr[info.flash_bank]);
-	iowrite32(int_status, FlashReg + ints_addr[info.flash_bank]);
-	cdma_int_status = ioread32(FlashReg + DMA_INTR);
-	iowrite32(cdma_int_status, FlashReg + DMA_INTR);
-
-	iowrite32(0, FlashReg + DMA_ENABLE);
-	while ((ioread32(FlashReg + DMA_ENABLE) & DMA_ENABLE__FLAG))
-		;
-
-	return event;
-}
-
-
-
diff --git a/drivers/staging/spectra/lld_cdma.h b/drivers/staging/spectra/lld_cdma.h
deleted file mode 100644
index 854ea066f0c4..000000000000
--- a/drivers/staging/spectra/lld_cdma.h
+++ /dev/null
@@ -1,123 +0,0 @@
-/*
- * NAND Flash Controller Device Driver
- * Copyright (c) 2009, Intel Corporation and its suppliers.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- */
-
-/* header for LLD_CDMA.c module */
-
-#ifndef _LLD_CDMA_
-#define _LLD_CDMA_
-
-#include "flash.h"
-
-#define  DEBUG_SYNC    1
-
-/*///////////   CDMA specific MACRO definition */
-#define MAX_DESCS         (255)
-#define MAX_CHANS  (4)
-#define MAX_SYNC_POINTS         (16)
-#define MAX_DESC_PER_CHAN     (MAX_DESCS * 3 + MAX_SYNC_POINTS + 2)
-
-#define CHANNEL_SYNC_MASK       (0x000F)
-#define CHANNEL_DMA_MASK        (0x00F0)
-#define CHANNEL_ID_MASK         (0x0300)
-#define CHANNEL_CONT_MASK       (0x4000)
-#define CHANNEL_INTR_MASK       (0x8000)
-
-#define CHANNEL_SYNC_OFFSET     (0)
-#define CHANNEL_DMA_OFFSET      (4)
-#define CHANNEL_ID_OFFSET       (8)
-#define CHANNEL_CONT_OFFSET     (14)
-#define CHANNEL_INTR_OFFSET     (15)
-
-u16 CDMA_Data_CMD(u8 cmd, u8 *data, u32 block, u16 page, u16 num, u16 flags);
-u16 CDMA_MemCopy_CMD(u8 *dest, u8 *src, u32 byte_cnt, u16 flags);
-u16 CDMA_Execute_CMDs(void);
-void print_pending_cmds(void);
-void print_cdma_descriptors(void);
-
-extern u8 g_SBDCmdIndex;
-extern struct mrst_nand_info info;
-
-
-/*///////////   prototypes: APIs for LLD_CDMA */
-int is_cdma_interrupt(void);
-u16 CDMA_Event_Status(void);
-
-/* CMD-DMA Descriptor Struct.  These are defined by the CMD_DMA HW */
-struct cdma_descriptor {
-	u32 NxtPointerHi;
-	u32 NxtPointerLo;
-	u32 FlashPointerHi;
-	u32 FlashPointerLo;
-	u32 CommandType;
-	u32 MemAddrHi;
-	u32 MemAddrLo;
-	u32 CommandFlags;
-	u32 Channel;
-	u32 Status;
-	u32 MemCopyPointerHi;
-	u32 MemCopyPointerLo;
-	u32 Reserved12;
-	u32 Reserved13;
-	u32 Reserved14;
-	u32 pcmd; /* pending cmd num related to this descriptor */
-};
-
-/* This struct holds one MemCopy descriptor as defined by the HW */
-struct memcpy_descriptor {
-	u32 NxtPointerHi;
-	u32 NxtPointerLo;
-	u32 SrcAddrHi;
-	u32 SrcAddrLo;
-	u32 DestAddrHi;
-	u32 DestAddrLo;
-	u32 XferSize;
-	u32 MemCopyFlags;
-	u32 MemCopyStatus;
-	u32 reserved9;
-	u32 reserved10;
-	u32 reserved11;
-	u32 reserved12;
-	u32 reserved13;
-	u32 reserved14;
-	u32 reserved15;
-};
-
-/* Pending CMD table entries (includes MemCopy parameters */
-struct pending_cmd {
-	u8 CMD;
-	u8 *DataAddr;
-	u32 Block;
-	u16 Page;
-	u16 PageCount;
-	u8 *DataDestAddr;
-	u8 *DataSrcAddr;
-	u32 MemCopyByteCnt;
-	u16 Flags;
-	u16 Status;
-};
-
-#if DEBUG_SYNC
-extern u32 debug_sync_cnt;
-#endif
-
-/* Definitions for CMD DMA descriptor chain fields */
-#define     CMD_DMA_DESC_COMP   0x8000
-#define     CMD_DMA_DESC_FAIL   0x4000
-
-#endif /*_LLD_CDMA_*/
diff --git a/drivers/staging/spectra/lld_emu.c b/drivers/staging/spectra/lld_emu.c
deleted file mode 100644
index 095f2f0c2e5b..000000000000
--- a/drivers/staging/spectra/lld_emu.c
+++ /dev/null
@@ -1,776 +0,0 @@
-/*
- * NAND Flash Controller Device Driver
- * Copyright (c) 2009, Intel Corporation and its suppliers.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- */
-
-#include <linux/fs.h>
-#include <linux/slab.h>
-#include "flash.h"
-#include "ffsdefs.h"
-#include "lld_emu.h"
-#include "lld.h"
-#if CMD_DMA
-#include "lld_cdma.h"
-#if FLASH_EMU
-u32 totalUsedBanks;
-u32 valid_banks[MAX_CHANS];
-#endif
-#endif
-
-#define GLOB_LLD_PAGES           64
-#define GLOB_LLD_PAGE_SIZE       (512+16)
-#define GLOB_LLD_PAGE_DATA_SIZE  512
-#define GLOB_LLD_BLOCKS          2048
-
-#if FLASH_EMU			/* This is for entire module */
-
-static u8 *flash_memory[GLOB_LLD_BLOCKS * GLOB_LLD_PAGES];
-
-/* Read nand emu file and then fill it's content to flash_memory */
-int emu_load_file_to_mem(void)
-{
-	mm_segment_t fs;
-	struct file *nef_filp = NULL;
-	struct inode *inode = NULL;
-	loff_t nef_size = 0;
-	loff_t tmp_file_offset, file_offset;
-	ssize_t nread;
-	int i, rc = -EINVAL;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	fs = get_fs();
-	set_fs(get_ds());
-
-	nef_filp = filp_open("/root/nand_emu_file", O_RDWR | O_LARGEFILE, 0);
-	if (IS_ERR(nef_filp)) {
-		printk(KERN_ERR "filp_open error: "
-		       "Unable to open nand emu file!\n");
-		return PTR_ERR(nef_filp);
-	}
-
-	if (nef_filp->f_path.dentry) {
-		inode = nef_filp->f_path.dentry->d_inode;
-	} else {
-		printk(KERN_ERR "Can not get valid inode!\n");
-		goto out;
-	}
-
-	nef_size = i_size_read(inode->i_mapping->host);
-	if (nef_size <= 0) {
-		printk(KERN_ERR "Invalid nand emu file size: "
-		       "0x%llx\n", nef_size);
-		goto out;
-	} else {
-		nand_dbg_print(NAND_DBG_DEBUG, "nand emu file size: %lld\n",
-			       nef_size);
-	}
-
-	file_offset = 0;
-	for (i = 0; i < GLOB_LLD_BLOCKS * GLOB_LLD_PAGES; i++) {
-		tmp_file_offset = file_offset;
-		nread = vfs_read(nef_filp,
-				 (char __user *)flash_memory[i],
-				 GLOB_LLD_PAGE_SIZE, &tmp_file_offset);
-		if (nread < GLOB_LLD_PAGE_SIZE) {
-			printk(KERN_ERR "%s, Line %d - "
-			       "nand emu file partial read: "
-			       "%d bytes\n", __FILE__, __LINE__, (int)nread);
-			goto out;
-		}
-		file_offset += GLOB_LLD_PAGE_SIZE;
-	}
-	rc = 0;
-
-out:
-	filp_close(nef_filp, current->files);
-	set_fs(fs);
-	return rc;
-}
-
-/* Write contents of flash_memory to nand emu file */
-int emu_write_mem_to_file(void)
-{
-	mm_segment_t fs;
-	struct file *nef_filp = NULL;
-	struct inode *inode = NULL;
-	loff_t nef_size = 0;
-	loff_t tmp_file_offset, file_offset;
-	ssize_t nwritten;
-	int i, rc = -EINVAL;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	fs = get_fs();
-	set_fs(get_ds());
-
-	nef_filp = filp_open("/root/nand_emu_file", O_RDWR | O_LARGEFILE, 0);
-	if (IS_ERR(nef_filp)) {
-		printk(KERN_ERR "filp_open error: "
-		       "Unable to open nand emu file!\n");
-		return PTR_ERR(nef_filp);
-	}
-
-	if (nef_filp->f_path.dentry) {
-		inode = nef_filp->f_path.dentry->d_inode;
-	} else {
-		printk(KERN_ERR "Invalid " "nef_filp->f_path.dentry value!\n");
-		goto out;
-	}
-
-	nef_size = i_size_read(inode->i_mapping->host);
-	if (nef_size <= 0) {
-		printk(KERN_ERR "Invalid "
-		       "nand emu file size: 0x%llx\n", nef_size);
-		goto out;
-	} else {
-		nand_dbg_print(NAND_DBG_DEBUG, "nand emu file size: "
-			       "%lld\n", nef_size);
-	}
-
-	file_offset = 0;
-	for (i = 0; i < GLOB_LLD_BLOCKS * GLOB_LLD_PAGES; i++) {
-		tmp_file_offset = file_offset;
-		nwritten = vfs_write(nef_filp,
-				     (char __user *)flash_memory[i],
-				     GLOB_LLD_PAGE_SIZE, &tmp_file_offset);
-		if (nwritten < GLOB_LLD_PAGE_SIZE) {
-			printk(KERN_ERR "%s, Line %d - "
-			       "nand emu file partial write: "
-			       "%d bytes\n", __FILE__, __LINE__, (int)nwritten);
-			goto out;
-		}
-		file_offset += GLOB_LLD_PAGE_SIZE;
-	}
-	rc = 0;
-
-out:
-	filp_close(nef_filp, current->files);
-	set_fs(fs);
-	return rc;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     emu_Flash_Init
-* Inputs:       none
-* Outputs:      PASS=0 (notice 0=ok here)
-* Description:  Creates & initializes the flash RAM array.
-*
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-u16 emu_Flash_Init(void)
-{
-	int i;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	flash_memory[0] = vmalloc(GLOB_LLD_PAGE_SIZE * GLOB_LLD_BLOCKS *
-				  GLOB_LLD_PAGES * sizeof(u8));
-	if (!flash_memory[0]) {
-		printk(KERN_ERR "Fail to allocate memory "
-		       "for nand emulator!\n");
-		return ERR;
-	}
-
-	memset((char *)(flash_memory[0]), 0xFF,
-	       GLOB_LLD_PAGE_SIZE * GLOB_LLD_BLOCKS * GLOB_LLD_PAGES *
-	       sizeof(u8));
-
-	for (i = 1; i < GLOB_LLD_BLOCKS * GLOB_LLD_PAGES; i++)
-		flash_memory[i] = flash_memory[i - 1] + GLOB_LLD_PAGE_SIZE;
-
-	emu_load_file_to_mem(); /* Load nand emu file to mem */
-
-	return PASS;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     emu_Flash_Release
-* Inputs:       none
-* Outputs:      PASS=0 (notice 0=ok here)
-* Description:          Releases the flash.
-*
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-int emu_Flash_Release(void)
-{
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	emu_write_mem_to_file();  /* Write back mem to nand emu file */
-
-	vfree(flash_memory[0]);
-	return PASS;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     emu_Read_Device_ID
-* Inputs:       none
-* Outputs:      PASS=1 FAIL=0
-* Description:  Reads the info from the controller registers.
-*               Sets up DeviceInfo structure with device parameters
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-
-u16 emu_Read_Device_ID(void)
-{
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	DeviceInfo.wDeviceMaker = 0;
-	DeviceInfo.wDeviceType = 8;
-	DeviceInfo.wSpectraStartBlock = 36;
-	DeviceInfo.wSpectraEndBlock = GLOB_LLD_BLOCKS - 1;
-	DeviceInfo.wTotalBlocks = GLOB_LLD_BLOCKS;
-	DeviceInfo.wPagesPerBlock = GLOB_LLD_PAGES;
-	DeviceInfo.wPageSize = GLOB_LLD_PAGE_SIZE;
-	DeviceInfo.wPageDataSize = GLOB_LLD_PAGE_DATA_SIZE;
-	DeviceInfo.wPageSpareSize = GLOB_LLD_PAGE_SIZE -
-	    GLOB_LLD_PAGE_DATA_SIZE;
-	DeviceInfo.wBlockSize = DeviceInfo.wPageSize * GLOB_LLD_PAGES;
-	DeviceInfo.wBlockDataSize = DeviceInfo.wPageDataSize * GLOB_LLD_PAGES;
-	DeviceInfo.wDataBlockNum = (u32) (DeviceInfo.wSpectraEndBlock -
-						DeviceInfo.wSpectraStartBlock
-						+ 1);
-	DeviceInfo.MLCDevice = 1; /* Emulate MLC device */
-	DeviceInfo.nBitsInPageNumber =
-		(u8)GLOB_Calc_Used_Bits(DeviceInfo.wPagesPerBlock);
-	DeviceInfo.nBitsInPageDataSize =
-		(u8)GLOB_Calc_Used_Bits(DeviceInfo.wPageDataSize);
-	DeviceInfo.nBitsInBlockDataSize =
-		(u8)GLOB_Calc_Used_Bits(DeviceInfo.wBlockDataSize);
-
-#if CMD_DMA
-	totalUsedBanks = 4;
-	valid_banks[0] = 1;
-	valid_banks[1] = 1;
-	valid_banks[2] = 1;
-	valid_banks[3] = 1;
-#endif
-
-	return PASS;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     emu_Flash_Reset
-* Inputs:       none
-* Outputs:      PASS=0 (notice 0=ok here)
-* Description:          Reset the flash
-*
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-u16 emu_Flash_Reset(void)
-{
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	return PASS;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     emu_Erase_Block
-* Inputs:       Address
-* Outputs:      PASS=0 (notice 0=ok here)
-* Description:          Erase a block
-*
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-u16 emu_Erase_Block(u32 block_add)
-{
-	int i;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	if (block_add >= DeviceInfo.wTotalBlocks) {
-		printk(KERN_ERR "emu_Erase_Block error! "
-		       "Too big block address: %d\n", block_add);
-		return FAIL;
-	}
-
-	nand_dbg_print(NAND_DBG_DEBUG, "Erasing block %d\n",
-		(int)block_add);
-
-	for (i = block_add * GLOB_LLD_PAGES;
-	     i < ((block_add + 1) * GLOB_LLD_PAGES); i++) {
-		if (flash_memory[i]) {
-			memset((u8 *)(flash_memory[i]), 0xFF,
-			       DeviceInfo.wPageSize * sizeof(u8));
-		}
-	}
-
-	return PASS;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     emu_Write_Page_Main
-* Inputs:       Write buffer address pointer
-*               Block number
-*               Page  number
-*               Number of pages to process
-* Outputs:      PASS=0 (notice 0=ok here)
-* Description:  Write the data in the buffer to main area of flash
-*
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-u16 emu_Write_Page_Main(u8 *write_data, u32 Block,
-			   u16 Page, u16 PageCount)
-{
-	int i;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	if (Block >= DeviceInfo.wTotalBlocks)
-		return FAIL;
-
-	if (Page + PageCount > DeviceInfo.wPagesPerBlock)
-		return FAIL;
-
-	nand_dbg_print(NAND_DBG_DEBUG, "emu_Write_Page_Main: "
-		       "lba %u Page %u PageCount %u\n",
-		       (unsigned int)Block,
-		       (unsigned int)Page, (unsigned int)PageCount);
-
-	for (i = 0; i < PageCount; i++) {
-		if (NULL == flash_memory[Block * GLOB_LLD_PAGES + Page]) {
-			printk(KERN_ERR "Run out of memory\n");
-			return FAIL;
-		}
-		memcpy((u8 *) (flash_memory[Block * GLOB_LLD_PAGES + Page]),
-		       write_data, DeviceInfo.wPageDataSize);
-		write_data += DeviceInfo.wPageDataSize;
-		Page++;
-	}
-
-	return PASS;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     emu_Read_Page_Main
-* Inputs:       Read buffer address pointer
-*               Block number
-*               Page  number
-*               Number of pages to process
-* Outputs:      PASS=0 (notice 0=ok here)
-* Description:  Read the data from the flash main area to the buffer
-*
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-u16 emu_Read_Page_Main(u8 *read_data, u32 Block,
-			  u16 Page, u16 PageCount)
-{
-	int i;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	if (Block >= DeviceInfo.wTotalBlocks)
-		return FAIL;
-
-	if (Page + PageCount > DeviceInfo.wPagesPerBlock)
-		return FAIL;
-
-	nand_dbg_print(NAND_DBG_DEBUG, "emu_Read_Page_Main: "
-		       "lba %u Page %u PageCount %u\n",
-		       (unsigned int)Block,
-		       (unsigned int)Page, (unsigned int)PageCount);
-
-	for (i = 0; i < PageCount; i++) {
-		if (NULL == flash_memory[Block * GLOB_LLD_PAGES + Page]) {
-			memset(read_data, 0xFF, DeviceInfo.wPageDataSize);
-		} else {
-			memcpy(read_data,
-			       (u8 *) (flash_memory[Block * GLOB_LLD_PAGES
-						      + Page]),
-			       DeviceInfo.wPageDataSize);
-		}
-		read_data += DeviceInfo.wPageDataSize;
-		Page++;
-	}
-
-	return PASS;
-}
-
-#ifndef ELDORA
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     emu_Read_Page_Main_Spare
-* Inputs:       Write Buffer
-*                       Address
-*                       Buffer size
-* Outputs:      PASS=0 (notice 0=ok here)
-* Description:          Read from flash main+spare area
-*
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-u16 emu_Read_Page_Main_Spare(u8 *read_data, u32 Block,
-				u16 Page, u16 PageCount)
-{
-	int i;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	if (Block >= DeviceInfo.wTotalBlocks) {
-		printk(KERN_ERR "Read Page Main+Spare "
-		       "Error: Block Address too big\n");
-		return FAIL;
-	}
-
-	if (Page + PageCount > DeviceInfo.wPagesPerBlock) {
-		printk(KERN_ERR "Read Page Main+Spare "
-		       "Error: Page number too big\n");
-		return FAIL;
-	}
-
-	nand_dbg_print(NAND_DBG_DEBUG, "Read Page Main + Spare - "
-		       "No. of pages %u block %u start page %u\n",
-		       (unsigned int)PageCount,
-		       (unsigned int)Block, (unsigned int)Page);
-
-	for (i = 0; i < PageCount; i++) {
-		if (NULL == flash_memory[Block * GLOB_LLD_PAGES + Page]) {
-			memset(read_data, 0xFF, DeviceInfo.wPageSize);
-		} else {
-			memcpy(read_data, (u8 *) (flash_memory[Block *
-								 GLOB_LLD_PAGES
-								 + Page]),
-			       DeviceInfo.wPageSize);
-		}
-
-		read_data += DeviceInfo.wPageSize;
-		Page++;
-	}
-
-	return PASS;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     emu_Write_Page_Main_Spare
-* Inputs:       Write buffer
-*                       address
-*                       buffer length
-* Outputs:      PASS=0 (notice 0=ok here)
-* Description:          Write the buffer to main+spare area of flash
-*
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-u16 emu_Write_Page_Main_Spare(u8 *write_data, u32 Block,
-				 u16 Page, u16 page_count)
-{
-	u16 i;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	if (Block >= DeviceInfo.wTotalBlocks) {
-		printk(KERN_ERR "Write Page Main + Spare "
-		       "Error: Block Address too big\n");
-		return FAIL;
-	}
-
-	if (Page + page_count > DeviceInfo.wPagesPerBlock) {
-		printk(KERN_ERR "Write Page Main + Spare "
-		       "Error: Page number too big\n");
-		return FAIL;
-	}
-
-	nand_dbg_print(NAND_DBG_DEBUG, "Write Page Main+Spare - "
-		       "No. of pages %u block %u start page %u\n",
-		       (unsigned int)page_count,
-		       (unsigned int)Block, (unsigned int)Page);
-
-	for (i = 0; i < page_count; i++) {
-		if (NULL == flash_memory[Block * GLOB_LLD_PAGES + Page]) {
-			printk(KERN_ERR "Run out of memory!\n");
-			return FAIL;
-		}
-		memcpy((u8 *) (flash_memory[Block * GLOB_LLD_PAGES + Page]),
-		       write_data, DeviceInfo.wPageSize);
-		write_data += DeviceInfo.wPageSize;
-		Page++;
-	}
-
-	return PASS;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     emu_Write_Page_Spare
-* Inputs:       Write buffer
-*                       Address
-*                       buffer size
-* Outputs:      PASS=0 (notice 0=ok here)
-* Description:          Write the buffer in the spare area
-*
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-u16 emu_Write_Page_Spare(u8 *write_data, u32 Block,
-			    u16 Page, u16 PageCount)
-{
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	if (Block >= DeviceInfo.wTotalBlocks) {
-		printk(KERN_ERR "Read Page Spare Error: "
-		       "Block Address too big\n");
-		return FAIL;
-	}
-
-	if (Page + PageCount > DeviceInfo.wPagesPerBlock) {
-		printk(KERN_ERR "Read Page Spare Error: "
-		       "Page number too big\n");
-		return FAIL;
-	}
-
-	nand_dbg_print(NAND_DBG_DEBUG, "Write Page Spare- "
-		       "block %u page %u\n",
-		       (unsigned int)Block, (unsigned int)Page);
-
-	if (NULL == flash_memory[Block * GLOB_LLD_PAGES + Page]) {
-		printk(KERN_ERR "Run out of memory!\n");
-		return FAIL;
-	}
-
-	memcpy((u8 *) (flash_memory[Block * GLOB_LLD_PAGES + Page] +
-			 DeviceInfo.wPageDataSize), write_data,
-	       (DeviceInfo.wPageSize - DeviceInfo.wPageDataSize));
-
-	return PASS;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     emu_Read_Page_Spare
-* Inputs:       Write Buffer
-*                       Address
-*                       Buffer size
-* Outputs:      PASS=0 (notice 0=ok here)
-* Description:          Read data from the spare area
-*
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-u16 emu_Read_Page_Spare(u8 *write_data, u32 Block,
-			   u16 Page, u16 PageCount)
-{
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	if (Block >= DeviceInfo.wTotalBlocks) {
-		printk(KERN_ERR "Read Page Spare "
-		       "Error: Block Address too big\n");
-		return FAIL;
-	}
-
-	if (Page + PageCount > DeviceInfo.wPagesPerBlock) {
-		printk(KERN_ERR "Read Page Spare "
-		       "Error: Page number too big\n");
-		return FAIL;
-	}
-
-	nand_dbg_print(NAND_DBG_DEBUG, "Read Page Spare- "
-		       "block %u page %u\n",
-		       (unsigned int)Block, (unsigned int)Page);
-
-	if (NULL == flash_memory[Block * GLOB_LLD_PAGES + Page]) {
-		memset(write_data, 0xFF,
-		       (DeviceInfo.wPageSize - DeviceInfo.wPageDataSize));
-	} else {
-		memcpy(write_data,
-		       (u8 *) (flash_memory[Block * GLOB_LLD_PAGES + Page]
-				 + DeviceInfo.wPageDataSize),
-		       (DeviceInfo.wPageSize - DeviceInfo.wPageDataSize));
-	}
-
-	return PASS;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     emu_Enable_Disable_Interrupts
-* Inputs:       enable or disable
-* Outputs:      none
-* Description:  NOP
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-void emu_Enable_Disable_Interrupts(u16 INT_ENABLE)
-{
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-}
-
-u16 emu_Get_Bad_Block(u32 block)
-{
-	return 0;
-}
-
-#if CMD_DMA
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Support for CDMA functions
-************************************
-*       emu_CDMA_Flash_Init
-*           CDMA_process_data command   (use LLD_CDMA)
-*           CDMA_MemCopy_CMD            (use LLD_CDMA)
-*       emu_CDMA_execute all commands
-*       emu_CDMA_Event_Status
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-u16 emu_CDMA_Flash_Init(void)
-{
-	u16 i;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	for (i = 0; i < MAX_DESCS + MAX_CHANS; i++) {
-		PendingCMD[i].CMD = 0;
-		PendingCMD[i].Tag = 0;
-		PendingCMD[i].DataAddr = 0;
-		PendingCMD[i].Block = 0;
-		PendingCMD[i].Page = 0;
-		PendingCMD[i].PageCount = 0;
-		PendingCMD[i].DataDestAddr = 0;
-		PendingCMD[i].DataSrcAddr = 0;
-		PendingCMD[i].MemCopyByteCnt = 0;
-		PendingCMD[i].ChanSync[0] = 0;
-		PendingCMD[i].ChanSync[1] = 0;
-		PendingCMD[i].ChanSync[2] = 0;
-		PendingCMD[i].ChanSync[3] = 0;
-		PendingCMD[i].ChanSync[4] = 0;
-		PendingCMD[i].Status = 3;
-	}
-
-	return PASS;
-}
-
-static void emu_isr(int irq, void *dev_id)
-{
-	/* TODO:  ... */
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     CDMA_Execute_CMDs
-* Inputs:       tag_count:  the number of pending cmds to do
-* Outputs:      PASS/FAIL
-* Description:  execute each command in the pending CMD array
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-u16 emu_CDMA_Execute_CMDs(u16 tag_count)
-{
-	u16 i, j;
-	u8 CMD;		/* cmd parameter */
-	u8 *data;
-	u32 block;
-	u16 page;
-	u16 count;
-	u16 status = PASS;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	nand_dbg_print(NAND_DBG_TRACE, "At start of Execute CMDs: "
-		       "Tag Count %u\n", tag_count);
-
-	for (i = 0; i < totalUsedBanks; i++) {
-		PendingCMD[i].CMD = DUMMY_CMD;
-		PendingCMD[i].Tag = 0xFF;
-		PendingCMD[i].Block =
-		    (DeviceInfo.wTotalBlocks / totalUsedBanks) * i;
-
-		for (j = 0; j <= MAX_CHANS; j++)
-			PendingCMD[i].ChanSync[j] = 0;
-	}
-
-	CDMA_Execute_CMDs(tag_count);
-
-	print_pending_cmds(tag_count);
-
-#if DEBUG_SYNC
-	}
-	debug_sync_cnt++;
-#endif
-
-	for (i = MAX_CHANS;
-	     i < tag_count + MAX_CHANS; i++) {
-		CMD = PendingCMD[i].CMD;
-		data = PendingCMD[i].DataAddr;
-		block = PendingCMD[i].Block;
-		page = PendingCMD[i].Page;
-		count = PendingCMD[i].PageCount;
-
-		switch (CMD) {
-		case ERASE_CMD:
-			emu_Erase_Block(block);
-			PendingCMD[i].Status = PASS;
-			break;
-		case WRITE_MAIN_CMD:
-			emu_Write_Page_Main(data, block, page, count);
-			PendingCMD[i].Status = PASS;
-			break;
-		case WRITE_MAIN_SPARE_CMD:
-			emu_Write_Page_Main_Spare(data, block, page, count);
-			PendingCMD[i].Status = PASS;
-			break;
-		case READ_MAIN_CMD:
-			emu_Read_Page_Main(data, block, page, count);
-			PendingCMD[i].Status = PASS;
-			break;
-		case MEMCOPY_CMD:
-			memcpy(PendingCMD[i].DataDestAddr,
-			       PendingCMD[i].DataSrcAddr,
-			       PendingCMD[i].MemCopyByteCnt);
-		case DUMMY_CMD:
-			PendingCMD[i].Status = PASS;
-			break;
-		default:
-			PendingCMD[i].Status = FAIL;
-			break;
-		}
-	}
-
-	/*
-	 * Temperory adding code to reset PendingCMD array for basic testing.
-	 * It should be done at the end of  event status function.
-	 */
-	for (i = tag_count + MAX_CHANS; i < MAX_DESCS; i++) {
-		PendingCMD[i].CMD = 0;
-		PendingCMD[i].Tag = 0;
-		PendingCMD[i].DataAddr = 0;
-		PendingCMD[i].Block = 0;
-		PendingCMD[i].Page = 0;
-		PendingCMD[i].PageCount = 0;
-		PendingCMD[i].DataDestAddr = 0;
-		PendingCMD[i].DataSrcAddr = 0;
-		PendingCMD[i].MemCopyByteCnt = 0;
-		PendingCMD[i].ChanSync[0] = 0;
-		PendingCMD[i].ChanSync[1] = 0;
-		PendingCMD[i].ChanSync[2] = 0;
-		PendingCMD[i].ChanSync[3] = 0;
-		PendingCMD[i].ChanSync[4] = 0;
-		PendingCMD[i].Status = CMD_NOT_DONE;
-	}
-
-	nand_dbg_print(NAND_DBG_TRACE, "At end of Execute CMDs.\n");
-
-	emu_isr(0, 0); /* This is a null isr now. Need fill it in future */
-
-	return status;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     emu_Event_Status
-* Inputs:       none
-* Outputs:      Event_Status code
-* Description:  This function can also be used to force errors
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-u16 emu_CDMA_Event_Status(void)
-{
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	return EVENT_PASS;
-}
-
-#endif /* CMD_DMA */
-#endif /* !ELDORA */
-#endif /* FLASH_EMU */
diff --git a/drivers/staging/spectra/lld_emu.h b/drivers/staging/spectra/lld_emu.h
deleted file mode 100644
index 63f84c38d3c1..000000000000
--- a/drivers/staging/spectra/lld_emu.h
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * NAND Flash Controller Device Driver
- * Copyright (c) 2009, Intel Corporation and its suppliers.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- */
-
-#ifndef _LLD_EMU_
-#define _LLD_EMU_
-
-#include "ffsport.h"
-#include "ffsdefs.h"
-
-/* prototypes: emulator API functions */
-extern u16 emu_Flash_Reset(void);
-extern u16 emu_Flash_Init(void);
-extern int emu_Flash_Release(void);
-extern u16 emu_Read_Device_ID(void);
-extern u16 emu_Erase_Block(u32 block_addr);
-extern u16 emu_Write_Page_Main(u8 *write_data, u32 Block,
-				u16 Page, u16 PageCount);
-extern u16 emu_Read_Page_Main(u8 *read_data, u32 Block, u16 Page,
-				 u16 PageCount);
-extern u16 emu_Event_Status(void);
-extern void emu_Enable_Disable_Interrupts(u16 INT_ENABLE);
-extern u16 emu_Write_Page_Main_Spare(u8 *write_data, u32 Block,
-					u16 Page, u16 PageCount);
-extern u16 emu_Write_Page_Spare(u8 *write_data, u32 Block,
-					u16 Page, u16 PageCount);
-extern u16 emu_Read_Page_Main_Spare(u8 *read_data, u32 Block,
-				       u16 Page, u16 PageCount);
-extern u16 emu_Read_Page_Spare(u8 *read_data, u32 Block, u16 Page,
-				  u16 PageCount);
-extern u16 emu_Get_Bad_Block(u32 block);
-
-u16 emu_CDMA_Flash_Init(void);
-u16 emu_CDMA_Execute_CMDs(u16 tag_count);
-u16 emu_CDMA_Event_Status(void);
-#endif /*_LLD_EMU_*/
diff --git a/drivers/staging/spectra/lld_mtd.c b/drivers/staging/spectra/lld_mtd.c
deleted file mode 100644
index a9c309a167c2..000000000000
--- a/drivers/staging/spectra/lld_mtd.c
+++ /dev/null
@@ -1,683 +0,0 @@
-/*
- * NAND Flash Controller Device Driver
- * Copyright (c) 2009, Intel Corporation and its suppliers.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- */
-
-#include <linux/fs.h>
-#include <linux/slab.h>
-#include <linux/mtd/mtd.h>
-#include "flash.h"
-#include "ffsdefs.h"
-#include "lld_emu.h"
-#include "lld.h"
-#if CMD_DMA
-#include "lld_cdma.h"
-u32 totalUsedBanks;
-u32 valid_banks[MAX_CHANS];
-#endif
-
-#define GLOB_LLD_PAGES           64
-#define GLOB_LLD_PAGE_SIZE       (512+16)
-#define GLOB_LLD_PAGE_DATA_SIZE  512
-#define GLOB_LLD_BLOCKS          2048
-
-static struct mtd_info *spectra_mtd;
-static int mtddev = -1;
-module_param(mtddev, int, 0);
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     mtd_Flash_Init
-* Inputs:       none
-* Outputs:      PASS=0 (notice 0=ok here)
-* Description:  Creates & initializes the flash RAM array.
-*
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-u16 mtd_Flash_Init(void)
-{
-	if (mtddev == -1) {
-		printk(KERN_ERR "No MTD device specified. Give mtddev parameter\n");
-		return FAIL;
-	}
-
-	spectra_mtd = get_mtd_device(NULL, mtddev);
-	if (!spectra_mtd) {
-		printk(KERN_ERR "Failed to obtain MTD device #%d\n", mtddev);
-		return FAIL;
-	}
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	return PASS;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     mtd_Flash_Release
-* Inputs:       none
-* Outputs:      PASS=0 (notice 0=ok here)
-* Description:          Releases the flash.
-*
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-int mtd_Flash_Release(void)
-{
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-	if (!spectra_mtd)
-		return PASS;
-
-	put_mtd_device(spectra_mtd);
-	spectra_mtd = NULL;
-
-	return PASS;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     mtd_Read_Device_ID
-* Inputs:       none
-* Outputs:      PASS=1 FAIL=0
-* Description:  Reads the info from the controller registers.
-*               Sets up DeviceInfo structure with device parameters
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-
-u16 mtd_Read_Device_ID(void)
-{
-	uint64_t tmp;
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	if (!spectra_mtd)
-		return FAIL;
-
-	DeviceInfo.wDeviceMaker = 0;
-	DeviceInfo.wDeviceType = 8;
-	DeviceInfo.wSpectraStartBlock = SPECTRA_START_BLOCK;
-	tmp = spectra_mtd->size;
-	do_div(tmp, spectra_mtd->erasesize);
-	DeviceInfo.wTotalBlocks = tmp;
-	DeviceInfo.wSpectraEndBlock = DeviceInfo.wTotalBlocks - 1;
-	DeviceInfo.wPagesPerBlock = spectra_mtd->erasesize / spectra_mtd->writesize;
-	DeviceInfo.wPageSize = spectra_mtd->writesize + spectra_mtd->oobsize;
-	DeviceInfo.wPageDataSize = spectra_mtd->writesize;
-	DeviceInfo.wPageSpareSize = spectra_mtd->oobsize;
-	DeviceInfo.wBlockSize = DeviceInfo.wPageSize * DeviceInfo.wPagesPerBlock;
-	DeviceInfo.wBlockDataSize = DeviceInfo.wPageDataSize * DeviceInfo.wPagesPerBlock;
-	DeviceInfo.wDataBlockNum = (u32) (DeviceInfo.wSpectraEndBlock -
-						DeviceInfo.wSpectraStartBlock
-						+ 1);
-	DeviceInfo.MLCDevice = 0;//spectra_mtd->celltype & NAND_CI_CELLTYPE_MSK;
-	DeviceInfo.nBitsInPageNumber =
-		(u8)GLOB_Calc_Used_Bits(DeviceInfo.wPagesPerBlock);
-	DeviceInfo.nBitsInPageDataSize =
-		(u8)GLOB_Calc_Used_Bits(DeviceInfo.wPageDataSize);
-	DeviceInfo.nBitsInBlockDataSize =
-		(u8)GLOB_Calc_Used_Bits(DeviceInfo.wBlockDataSize);
-
-#if CMD_DMA
-	totalUsedBanks = 4;
-	valid_banks[0] = 1;
-	valid_banks[1] = 1;
-	valid_banks[2] = 1;
-	valid_banks[3] = 1;
-#endif
-
-	return PASS;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     mtd_Flash_Reset
-* Inputs:       none
-* Outputs:      PASS=0 (notice 0=ok here)
-* Description:          Reset the flash
-*
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-u16 mtd_Flash_Reset(void)
-{
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	return PASS;
-}
-
-void erase_callback(struct erase_info *e)
-{
-	complete((void *)e->priv);
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     mtd_Erase_Block
-* Inputs:       Address
-* Outputs:      PASS=0 (notice 0=ok here)
-* Description:          Erase a block
-*
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-u16 mtd_Erase_Block(u32 block_add)
-{
-	struct erase_info erase;
-	DECLARE_COMPLETION_ONSTACK(comp);
-	int ret;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	if (block_add >= DeviceInfo.wTotalBlocks) {
-		printk(KERN_ERR "mtd_Erase_Block error! "
-		       "Too big block address: %d\n", block_add);
-		return FAIL;
-	}
-
-	nand_dbg_print(NAND_DBG_DEBUG, "Erasing block %d\n",
-		(int)block_add);
-
-	erase.mtd = spectra_mtd;
-	erase.callback = erase_callback;
-	erase.addr = block_add * spectra_mtd->erasesize;
-	erase.len = spectra_mtd->erasesize;
-	erase.priv = (unsigned long)&comp;
-
-	ret = spectra_mtd->erase(spectra_mtd, &erase);
-	if (!ret) {
-		wait_for_completion(&comp);
-		if (erase.state != MTD_ERASE_DONE)
-			ret = -EIO;
-	}
-	if (ret) {
-		printk(KERN_WARNING "mtd_Erase_Block error! "
-		       "erase of region [0x%llx, 0x%llx] failed\n",
-		       erase.addr, erase.len);
-		return FAIL;
-	}
-
-	return PASS;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     mtd_Write_Page_Main
-* Inputs:       Write buffer address pointer
-*               Block number
-*               Page  number
-*               Number of pages to process
-* Outputs:      PASS=0 (notice 0=ok here)
-* Description:  Write the data in the buffer to main area of flash
-*
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-u16 mtd_Write_Page_Main(u8 *write_data, u32 Block,
-			   u16 Page, u16 PageCount)
-{
-	size_t retlen;
-	int ret = 0;
-
-	if (Block >= DeviceInfo.wTotalBlocks)
-		return FAIL;
-
-	if (Page + PageCount > DeviceInfo.wPagesPerBlock)
-		return FAIL;
-
-	nand_dbg_print(NAND_DBG_DEBUG, "mtd_Write_Page_Main: "
-		       "lba %u Page %u PageCount %u\n",
-		       (unsigned int)Block,
-		       (unsigned int)Page, (unsigned int)PageCount);
-
-
-	while (PageCount) {
-		ret = spectra_mtd->write(spectra_mtd,
-					 (Block * spectra_mtd->erasesize) + (Page * spectra_mtd->writesize),
-					 DeviceInfo.wPageDataSize, &retlen, write_data);
-		if (ret) {
-			printk(KERN_ERR "%s failed %d\n", __func__, ret);
-			return FAIL;
-		}
-		write_data += DeviceInfo.wPageDataSize;
-		Page++;
-		PageCount--;
-	}
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	return PASS;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     mtd_Read_Page_Main
-* Inputs:       Read buffer address pointer
-*               Block number
-*               Page  number
-*               Number of pages to process
-* Outputs:      PASS=0 (notice 0=ok here)
-* Description:  Read the data from the flash main area to the buffer
-*
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-u16 mtd_Read_Page_Main(u8 *read_data, u32 Block,
-			  u16 Page, u16 PageCount)
-{
-	size_t retlen;
-	int ret = 0;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	if (Block >= DeviceInfo.wTotalBlocks)
-		return FAIL;
-
-	if (Page + PageCount > DeviceInfo.wPagesPerBlock)
-		return FAIL;
-
-	nand_dbg_print(NAND_DBG_DEBUG, "mtd_Read_Page_Main: "
-		       "lba %u Page %u PageCount %u\n",
-		       (unsigned int)Block,
-		       (unsigned int)Page, (unsigned int)PageCount);
-
-
-	while (PageCount) {
-		ret = spectra_mtd->read(spectra_mtd,
-					(Block * spectra_mtd->erasesize) + (Page * spectra_mtd->writesize),
-					DeviceInfo.wPageDataSize, &retlen, read_data);
-		if (ret) {
-			printk(KERN_ERR "%s failed %d\n", __func__, ret);
-			return FAIL;
-		}
-		read_data += DeviceInfo.wPageDataSize;
-		Page++;
-		PageCount--;
-	}
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	return PASS;
-}
-
-#ifndef ELDORA
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     mtd_Read_Page_Main_Spare
-* Inputs:       Write Buffer
-*                       Address
-*                       Buffer size
-* Outputs:      PASS=0 (notice 0=ok here)
-* Description:          Read from flash main+spare area
-*
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-u16 mtd_Read_Page_Main_Spare(u8 *read_data, u32 Block,
-				u16 Page, u16 PageCount)
-{
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	if (Block >= DeviceInfo.wTotalBlocks) {
-		printk(KERN_ERR "Read Page Main+Spare "
-		       "Error: Block Address too big\n");
-		return FAIL;
-	}
-
-	if (Page + PageCount > DeviceInfo.wPagesPerBlock) {
-		printk(KERN_ERR "Read Page Main+Spare "
-		       "Error: Page number %d+%d too big in block %d\n",
-		       Page, PageCount, Block);
-		return FAIL;
-	}
-
-	nand_dbg_print(NAND_DBG_DEBUG, "Read Page Main + Spare - "
-		       "No. of pages %u block %u start page %u\n",
-		       (unsigned int)PageCount,
-		       (unsigned int)Block, (unsigned int)Page);
-
-
-	while (PageCount) {
-		struct mtd_oob_ops ops;
-		int ret;
-
-		ops.mode = MTD_OPS_AUTO_OOB;
-		ops.datbuf = read_data;
-		ops.len = DeviceInfo.wPageDataSize;
-		ops.oobbuf = read_data + DeviceInfo.wPageDataSize + BTSIG_OFFSET;
-		ops.ooblen = BTSIG_BYTES;
-		ops.ooboffs = 0;
-
-		ret = spectra_mtd->read_oob(spectra_mtd,
-					    (Block * spectra_mtd->erasesize) + (Page * spectra_mtd->writesize),
-					    &ops);
-		if (ret) {
-			printk(KERN_ERR "%s failed %d\n", __func__, ret);
-			return FAIL;
-		}
-		read_data += DeviceInfo.wPageSize;
-		Page++;
-		PageCount--;
-	}
-
-	return PASS;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     mtd_Write_Page_Main_Spare
-* Inputs:       Write buffer
-*                       address
-*                       buffer length
-* Outputs:      PASS=0 (notice 0=ok here)
-* Description:          Write the buffer to main+spare area of flash
-*
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-u16 mtd_Write_Page_Main_Spare(u8 *write_data, u32 Block,
-				 u16 Page, u16 page_count)
-{
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	if (Block >= DeviceInfo.wTotalBlocks) {
-		printk(KERN_ERR "Write Page Main + Spare "
-		       "Error: Block Address too big\n");
-		return FAIL;
-	}
-
-	if (Page + page_count > DeviceInfo.wPagesPerBlock) {
-		printk(KERN_ERR "Write Page Main + Spare "
-		       "Error: Page number %d+%d too big in block %d\n",
-		       Page, page_count, Block);
-		WARN_ON(1);
-		return FAIL;
-	}
-
-	nand_dbg_print(NAND_DBG_DEBUG, "Write Page Main+Spare - "
-		       "No. of pages %u block %u start page %u\n",
-		       (unsigned int)page_count,
-		       (unsigned int)Block, (unsigned int)Page);
-
-	while (page_count) {
-		struct mtd_oob_ops ops;
-		int ret;
-
-		ops.mode = MTD_OPS_AUTO_OOB;
-		ops.datbuf = write_data;
-		ops.len = DeviceInfo.wPageDataSize;
-		ops.oobbuf = write_data + DeviceInfo.wPageDataSize + BTSIG_OFFSET;
-		ops.ooblen = BTSIG_BYTES;
-		ops.ooboffs = 0;
-
-		ret = spectra_mtd->write_oob(spectra_mtd,
-					     (Block * spectra_mtd->erasesize) + (Page * spectra_mtd->writesize),
-					     &ops);
-		if (ret) {
-			printk(KERN_ERR "%s failed %d\n", __func__, ret);
-			return FAIL;
-		}
-		write_data += DeviceInfo.wPageSize;
-		Page++;
-		page_count--;
-	}
-
-	return PASS;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     mtd_Write_Page_Spare
-* Inputs:       Write buffer
-*                       Address
-*                       buffer size
-* Outputs:      PASS=0 (notice 0=ok here)
-* Description:          Write the buffer in the spare area
-*
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-u16 mtd_Write_Page_Spare(u8 *write_data, u32 Block,
-			    u16 Page, u16 PageCount)
-{
-	WARN_ON(1);
-	return FAIL;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     mtd_Read_Page_Spare
-* Inputs:       Write Buffer
-*                       Address
-*                       Buffer size
-* Outputs:      PASS=0 (notice 0=ok here)
-* Description:          Read data from the spare area
-*
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-u16 mtd_Read_Page_Spare(u8 *read_data, u32 Block,
-			   u16 Page, u16 PageCount)
-{
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	if (Block >= DeviceInfo.wTotalBlocks) {
-		printk(KERN_ERR "Read Page Spare "
-		       "Error: Block Address too big\n");
-		return FAIL;
-	}
-
-	if (Page + PageCount > DeviceInfo.wPagesPerBlock) {
-		printk(KERN_ERR "Read Page Spare "
-		       "Error: Page number too big\n");
-		return FAIL;
-	}
-
-	nand_dbg_print(NAND_DBG_DEBUG, "Read Page Spare- "
-		       "block %u page %u (%u pages)\n",
-		       (unsigned int)Block, (unsigned int)Page, PageCount);
-
-	while (PageCount) {
-		struct mtd_oob_ops ops;
-		int ret;
-
-		ops.mode = MTD_OPS_AUTO_OOB;
-		ops.datbuf = NULL;
-		ops.len = 0;
-		ops.oobbuf = read_data;
-		ops.ooblen = BTSIG_BYTES;
-		ops.ooboffs = 0;
-
-		ret = spectra_mtd->read_oob(spectra_mtd,
-					    (Block * spectra_mtd->erasesize) + (Page * spectra_mtd->writesize),
-					    &ops);
-		if (ret) {
-			printk(KERN_ERR "%s failed %d\n", __func__, ret);
-			return FAIL;
-		}
-
-		read_data += DeviceInfo.wPageSize;
-		Page++;
-		PageCount--;
-	}
-
-	return PASS;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     mtd_Enable_Disable_Interrupts
-* Inputs:       enable or disable
-* Outputs:      none
-* Description:  NOP
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-void mtd_Enable_Disable_Interrupts(u16 INT_ENABLE)
-{
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-}
-
-u16 mtd_Get_Bad_Block(u32 block)
-{
-	return 0;
-}
-
-#if CMD_DMA
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Support for CDMA functions
-************************************
-*       mtd_CDMA_Flash_Init
-*           CDMA_process_data command   (use LLD_CDMA)
-*           CDMA_MemCopy_CMD            (use LLD_CDMA)
-*       mtd_CDMA_execute all commands
-*       mtd_CDMA_Event_Status
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-u16 mtd_CDMA_Flash_Init(void)
-{
-	u16 i;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	for (i = 0; i < MAX_DESCS + MAX_CHANS; i++) {
-		PendingCMD[i].CMD = 0;
-		PendingCMD[i].Tag = 0;
-		PendingCMD[i].DataAddr = 0;
-		PendingCMD[i].Block = 0;
-		PendingCMD[i].Page = 0;
-		PendingCMD[i].PageCount = 0;
-		PendingCMD[i].DataDestAddr = 0;
-		PendingCMD[i].DataSrcAddr = 0;
-		PendingCMD[i].MemCopyByteCnt = 0;
-		PendingCMD[i].ChanSync[0] = 0;
-		PendingCMD[i].ChanSync[1] = 0;
-		PendingCMD[i].ChanSync[2] = 0;
-		PendingCMD[i].ChanSync[3] = 0;
-		PendingCMD[i].ChanSync[4] = 0;
-		PendingCMD[i].Status = 3;
-	}
-
-	return PASS;
-}
-
-static void mtd_isr(int irq, void *dev_id)
-{
-	/* TODO:  ... */
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     CDMA_Execute_CMDs
-* Inputs:       tag_count:  the number of pending cmds to do
-* Outputs:      PASS/FAIL
-* Description:  execute each command in the pending CMD array
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-u16 mtd_CDMA_Execute_CMDs(u16 tag_count)
-{
-	u16 i, j;
-	u8 CMD;		/* cmd parameter */
-	u8 *data;
-	u32 block;
-	u16 page;
-	u16 count;
-	u16 status = PASS;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	nand_dbg_print(NAND_DBG_TRACE, "At start of Execute CMDs: "
-		       "Tag Count %u\n", tag_count);
-
-	for (i = 0; i < totalUsedBanks; i++) {
-		PendingCMD[i].CMD = DUMMY_CMD;
-		PendingCMD[i].Tag = 0xFF;
-		PendingCMD[i].Block =
-		    (DeviceInfo.wTotalBlocks / totalUsedBanks) * i;
-
-		for (j = 0; j <= MAX_CHANS; j++)
-			PendingCMD[i].ChanSync[j] = 0;
-	}
-
-	CDMA_Execute_CMDs(tag_count);
-
-#ifdef VERBOSE
-		print_pending_cmds(tag_count);
-#endif
-#if DEBUG_SYNC
-	}
-	debug_sync_cnt++;
-#endif
-
-	for (i = MAX_CHANS;
-	     i < tag_count + MAX_CHANS; i++) {
-		CMD = PendingCMD[i].CMD;
-		data = PendingCMD[i].DataAddr;
-		block = PendingCMD[i].Block;
-		page = PendingCMD[i].Page;
-		count = PendingCMD[i].PageCount;
-
-		switch (CMD) {
-		case ERASE_CMD:
-			mtd_Erase_Block(block);
-			PendingCMD[i].Status = PASS;
-			break;
-		case WRITE_MAIN_CMD:
-			mtd_Write_Page_Main(data, block, page, count);
-			PendingCMD[i].Status = PASS;
-			break;
-		case WRITE_MAIN_SPARE_CMD:
-			mtd_Write_Page_Main_Spare(data, block, page, count);
-			PendingCMD[i].Status = PASS;
-			break;
-		case READ_MAIN_CMD:
-			mtd_Read_Page_Main(data, block, page, count);
-			PendingCMD[i].Status = PASS;
-			break;
-		case MEMCOPY_CMD:
-			memcpy(PendingCMD[i].DataDestAddr,
-			       PendingCMD[i].DataSrcAddr,
-			       PendingCMD[i].MemCopyByteCnt);
-		case DUMMY_CMD:
-			PendingCMD[i].Status = PASS;
-			break;
-		default:
-			PendingCMD[i].Status = FAIL;
-			break;
-		}
-	}
-
-	/*
-	 * Temperory adding code to reset PendingCMD array for basic testing.
-	 * It should be done at the end of  event status function.
-	 */
-	for (i = tag_count + MAX_CHANS; i < MAX_DESCS; i++) {
-		PendingCMD[i].CMD = 0;
-		PendingCMD[i].Tag = 0;
-		PendingCMD[i].DataAddr = 0;
-		PendingCMD[i].Block = 0;
-		PendingCMD[i].Page = 0;
-		PendingCMD[i].PageCount = 0;
-		PendingCMD[i].DataDestAddr = 0;
-		PendingCMD[i].DataSrcAddr = 0;
-		PendingCMD[i].MemCopyByteCnt = 0;
-		PendingCMD[i].ChanSync[0] = 0;
-		PendingCMD[i].ChanSync[1] = 0;
-		PendingCMD[i].ChanSync[2] = 0;
-		PendingCMD[i].ChanSync[3] = 0;
-		PendingCMD[i].ChanSync[4] = 0;
-		PendingCMD[i].Status = CMD_NOT_DONE;
-	}
-
-	nand_dbg_print(NAND_DBG_TRACE, "At end of Execute CMDs.\n");
-
-	mtd_isr(0, 0); /* This is a null isr now. Need fill it in future */
-
-	return status;
-}
-
-/*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&
-* Function:     mtd_Event_Status
-* Inputs:       none
-* Outputs:      Event_Status code
-* Description:  This function can also be used to force errors
-*&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&&*/
-u16 mtd_CDMA_Event_Status(void)
-{
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	return EVENT_PASS;
-}
-
-#endif /* CMD_DMA */
-#endif /* !ELDORA */
diff --git a/drivers/staging/spectra/lld_mtd.h b/drivers/staging/spectra/lld_mtd.h
deleted file mode 100644
index 4e81ee87b53d..000000000000
--- a/drivers/staging/spectra/lld_mtd.h
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * NAND Flash Controller Device Driver
- * Copyright (c) 2009, Intel Corporation and its suppliers.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- */
-
-#ifndef _LLD_MTD_
-#define _LLD_MTD_
-
-#include "ffsport.h"
-#include "ffsdefs.h"
-
-/* prototypes: MTD API functions */
-extern u16 mtd_Flash_Reset(void);
-extern u16 mtd_Flash_Init(void);
-extern int mtd_Flash_Release(void);
-extern u16 mtd_Read_Device_ID(void);
-extern u16 mtd_Erase_Block(u32 block_addr);
-extern u16 mtd_Write_Page_Main(u8 *write_data, u32 Block,
-				u16 Page, u16 PageCount);
-extern u16 mtd_Read_Page_Main(u8 *read_data, u32 Block, u16 Page,
-				 u16 PageCount);
-extern u16 mtd_Event_Status(void);
-extern void mtd_Enable_Disable_Interrupts(u16 INT_ENABLE);
-extern u16 mtd_Write_Page_Main_Spare(u8 *write_data, u32 Block,
-					u16 Page, u16 PageCount);
-extern u16 mtd_Write_Page_Spare(u8 *write_data, u32 Block,
-					u16 Page, u16 PageCount);
-extern u16 mtd_Read_Page_Main_Spare(u8 *read_data, u32 Block,
-				       u16 Page, u16 PageCount);
-extern u16 mtd_Read_Page_Spare(u8 *read_data, u32 Block, u16 Page,
-				  u16 PageCount);
-extern u16 mtd_Get_Bad_Block(u32 block);
-
-u16 mtd_CDMA_Flash_Init(void);
-u16 mtd_CDMA_Execute_CMDs(u16 tag_count);
-u16 mtd_CDMA_Event_Status(void);
-#endif /*_LLD_MTD_*/
diff --git a/drivers/staging/spectra/lld_nand.c b/drivers/staging/spectra/lld_nand.c
deleted file mode 100644
index 60a14ff26c7f..000000000000
--- a/drivers/staging/spectra/lld_nand.c
+++ /dev/null
@@ -1,2619 +0,0 @@
-/*
- * NAND Flash Controller Device Driver
- * Copyright (c) 2009, Intel Corporation and its suppliers.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- */
-
-#include "lld.h"
-#include "lld_nand.h"
-#include "lld_cdma.h"
-
-#include "spectraswconfig.h"
-#include "flash.h"
-#include "ffsdefs.h"
-
-#include <linux/interrupt.h>
-#include <linux/delay.h>
-#include <linux/wait.h>
-#include <linux/mutex.h>
-
-#include "nand_regs.h"
-
-#define SPECTRA_NAND_NAME    "nd"
-
-#define CEIL_DIV(X, Y) (((X)%(Y)) ? ((X)/(Y)+1) : ((X)/(Y)))
-#define MAX_PAGES_PER_RW        128
-
-#define INT_IDLE_STATE                 0
-#define INT_READ_PAGE_MAIN    0x01
-#define INT_WRITE_PAGE_MAIN    0x02
-#define INT_PIPELINE_READ_AHEAD    0x04
-#define INT_PIPELINE_WRITE_AHEAD    0x08
-#define INT_MULTI_PLANE_READ    0x10
-#define INT_MULTI_PLANE_WRITE    0x11
-
-static u32 enable_ecc;
-
-struct mrst_nand_info info;
-
-int totalUsedBanks;
-u32 GLOB_valid_banks[LLD_MAX_FLASH_BANKS];
-
-void __iomem *FlashReg;
-void __iomem *FlashMem;
-
-u16 conf_parameters[] = {
-	0x0000,
-	0x0000,
-	0x01F4,
-	0x01F4,
-	0x01F4,
-	0x01F4,
-	0x0000,
-	0x0000,
-	0x0001,
-	0x0000,
-	0x0000,
-	0x0000,
-	0x0000,
-	0x0040,
-	0x0001,
-	0x000A,
-	0x000A,
-	0x000A,
-	0x0000,
-	0x0000,
-	0x0005,
-	0x0012,
-	0x000C
-};
-
-u16   NAND_Get_Bad_Block(u32 block)
-{
-	u32 status = PASS;
-	u32 flag_bytes  = 0;
-	u32 skip_bytes  = DeviceInfo.wSpareSkipBytes;
-	u32 page, i;
-	u8 *pReadSpareBuf = buf_get_bad_block;
-
-	if (enable_ecc)
-		flag_bytes = DeviceInfo.wNumPageSpareFlag;
-
-	for (page = 0; page < 2; page++) {
-		status = NAND_Read_Page_Spare(pReadSpareBuf, block, page, 1);
-		if (status != PASS)
-			return READ_ERROR;
-		for (i = flag_bytes; i < (flag_bytes + skip_bytes); i++)
-			if (pReadSpareBuf[i] != 0xff)
-				return DEFECTIVE_BLOCK;
-	}
-
-	for (page = 1; page < 3; page++) {
-		status = NAND_Read_Page_Spare(pReadSpareBuf, block,
-			DeviceInfo.wPagesPerBlock - page , 1);
-		if (status != PASS)
-			return READ_ERROR;
-		for (i = flag_bytes; i < (flag_bytes + skip_bytes); i++)
-			if (pReadSpareBuf[i] != 0xff)
-				return DEFECTIVE_BLOCK;
-	}
-
-	return GOOD_BLOCK;
-}
-
-
-u16 NAND_Flash_Reset(void)
-{
-	u32 i;
-	u32 intr_status_rst_comp[4] = {INTR_STATUS0__RST_COMP,
-		INTR_STATUS1__RST_COMP,
-		INTR_STATUS2__RST_COMP,
-		INTR_STATUS3__RST_COMP};
-	u32 intr_status_time_out[4] = {INTR_STATUS0__TIME_OUT,
-		INTR_STATUS1__TIME_OUT,
-		INTR_STATUS2__TIME_OUT,
-		INTR_STATUS3__TIME_OUT};
-	u32 intr_status[4] = {INTR_STATUS0, INTR_STATUS1,
-		INTR_STATUS2, INTR_STATUS3};
-	u32 device_reset_banks[4] = {DEVICE_RESET__BANK0,
-		DEVICE_RESET__BANK1,
-		DEVICE_RESET__BANK2,
-		DEVICE_RESET__BANK3};
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	for (i = 0 ; i < LLD_MAX_FLASH_BANKS; i++)
-		iowrite32(intr_status_rst_comp[i] | intr_status_time_out[i],
-		FlashReg + intr_status[i]);
-
-	for (i = 0 ; i < LLD_MAX_FLASH_BANKS; i++) {
-		iowrite32(device_reset_banks[i], FlashReg + DEVICE_RESET);
-		while (!(ioread32(FlashReg + intr_status[i]) &
-			(intr_status_rst_comp[i] | intr_status_time_out[i])))
-			;
-		if (ioread32(FlashReg + intr_status[i]) &
-			intr_status_time_out[i])
-			nand_dbg_print(NAND_DBG_WARN,
-			"NAND Reset operation timed out on bank %d\n", i);
-	}
-
-	for (i = 0; i < LLD_MAX_FLASH_BANKS; i++)
-		iowrite32(intr_status_rst_comp[i] | intr_status_time_out[i],
-			FlashReg + intr_status[i]);
-
-	return PASS;
-}
-
-static void NAND_ONFi_Timing_Mode(u16 mode)
-{
-	u16 Trea[6] = {40, 30, 25, 20, 20, 16};
-	u16 Trp[6] = {50, 25, 17, 15, 12, 10};
-	u16 Treh[6] = {30, 15, 15, 10, 10, 7};
-	u16 Trc[6] = {100, 50, 35, 30, 25, 20};
-	u16 Trhoh[6] = {0, 15, 15, 15, 15, 15};
-	u16 Trloh[6] = {0, 0, 0, 0, 5, 5};
-	u16 Tcea[6] = {100, 45, 30, 25, 25, 25};
-	u16 Tadl[6] = {200, 100, 100, 100, 70, 70};
-	u16 Trhw[6] = {200, 100, 100, 100, 100, 100};
-	u16 Trhz[6] = {200, 100, 100, 100, 100, 100};
-	u16 Twhr[6] = {120, 80, 80, 60, 60, 60};
-	u16 Tcs[6] = {70, 35, 25, 25, 20, 15};
-
-	u16 TclsRising = 1;
-	u16 data_invalid_rhoh, data_invalid_rloh, data_invalid;
-	u16 dv_window = 0;
-	u16 en_lo, en_hi;
-	u16 acc_clks;
-	u16 addr_2_data, re_2_we, re_2_re, we_2_re, cs_cnt;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	en_lo = CEIL_DIV(Trp[mode], CLK_X);
-	en_hi = CEIL_DIV(Treh[mode], CLK_X);
-
-#if ONFI_BLOOM_TIME
-	if ((en_hi * CLK_X) < (Treh[mode] + 2))
-		en_hi++;
-#endif
-
-	if ((en_lo + en_hi) * CLK_X < Trc[mode])
-		en_lo += CEIL_DIV((Trc[mode] - (en_lo + en_hi) * CLK_X), CLK_X);
-
-	if ((en_lo + en_hi) < CLK_MULTI)
-		en_lo += CLK_MULTI - en_lo - en_hi;
-
-	while (dv_window < 8) {
-		data_invalid_rhoh = en_lo * CLK_X + Trhoh[mode];
-
-		data_invalid_rloh = (en_lo + en_hi) * CLK_X + Trloh[mode];
-
-		data_invalid =
-		    data_invalid_rhoh <
-		    data_invalid_rloh ? data_invalid_rhoh : data_invalid_rloh;
-
-		dv_window = data_invalid - Trea[mode];
-
-		if (dv_window < 8)
-			en_lo++;
-	}
-
-	acc_clks = CEIL_DIV(Trea[mode], CLK_X);
-
-	while (((acc_clks * CLK_X) - Trea[mode]) < 3)
-		acc_clks++;
-
-	if ((data_invalid - acc_clks * CLK_X) < 2)
-		nand_dbg_print(NAND_DBG_WARN, "%s, Line %d: Warning!\n",
-			__FILE__, __LINE__);
-
-	addr_2_data = CEIL_DIV(Tadl[mode], CLK_X);
-	re_2_we = CEIL_DIV(Trhw[mode], CLK_X);
-	re_2_re = CEIL_DIV(Trhz[mode], CLK_X);
-	we_2_re = CEIL_DIV(Twhr[mode], CLK_X);
-	cs_cnt = CEIL_DIV((Tcs[mode] - Trp[mode]), CLK_X);
-	if (!TclsRising)
-		cs_cnt = CEIL_DIV(Tcs[mode], CLK_X);
-	if (cs_cnt == 0)
-		cs_cnt = 1;
-
-	if (Tcea[mode]) {
-		while (((cs_cnt * CLK_X) + Trea[mode]) < Tcea[mode])
-			cs_cnt++;
-	}
-
-#if MODE5_WORKAROUND
-	if (mode == 5)
-		acc_clks = 5;
-#endif
-
-	/* Sighting 3462430: Temporary hack for MT29F128G08CJABAWP:B */
-	if ((ioread32(FlashReg + MANUFACTURER_ID) == 0) &&
-		(ioread32(FlashReg + DEVICE_ID) == 0x88))
-		acc_clks = 6;
-
-	iowrite32(acc_clks, FlashReg + ACC_CLKS);
-	iowrite32(re_2_we, FlashReg + RE_2_WE);
-	iowrite32(re_2_re, FlashReg + RE_2_RE);
-	iowrite32(we_2_re, FlashReg + WE_2_RE);
-	iowrite32(addr_2_data, FlashReg + ADDR_2_DATA);
-	iowrite32(en_lo, FlashReg + RDWR_EN_LO_CNT);
-	iowrite32(en_hi, FlashReg + RDWR_EN_HI_CNT);
-	iowrite32(cs_cnt, FlashReg + CS_SETUP_CNT);
-}
-
-static void index_addr(u32 address, u32 data)
-{
-	iowrite32(address, FlashMem);
-	iowrite32(data, FlashMem + 0x10);
-}
-
-static void index_addr_read_data(u32 address, u32 *pdata)
-{
-	iowrite32(address, FlashMem);
-	*pdata = ioread32(FlashMem + 0x10);
-}
-
-static void set_ecc_config(void)
-{
-#if SUPPORT_8BITECC
-	if ((ioread32(FlashReg + DEVICE_MAIN_AREA_SIZE) < 4096) ||
-		(ioread32(FlashReg + DEVICE_SPARE_AREA_SIZE) <= 128))
-		iowrite32(8, FlashReg + ECC_CORRECTION);
-#endif
-
-	if ((ioread32(FlashReg + ECC_CORRECTION) & ECC_CORRECTION__VALUE)
-		== 1) {
-		DeviceInfo.wECCBytesPerSector = 4;
-		DeviceInfo.wECCBytesPerSector *= DeviceInfo.wDevicesConnected;
-		DeviceInfo.wNumPageSpareFlag =
-			DeviceInfo.wPageSpareSize -
-			DeviceInfo.wPageDataSize /
-			(ECC_SECTOR_SIZE * DeviceInfo.wDevicesConnected) *
-			DeviceInfo.wECCBytesPerSector
-			- DeviceInfo.wSpareSkipBytes;
-	} else {
-		DeviceInfo.wECCBytesPerSector =
-			(ioread32(FlashReg + ECC_CORRECTION) &
-			ECC_CORRECTION__VALUE) * 13 / 8;
-		if ((DeviceInfo.wECCBytesPerSector) % 2 == 0)
-			DeviceInfo.wECCBytesPerSector += 2;
-		else
-			DeviceInfo.wECCBytesPerSector += 1;
-
-		DeviceInfo.wECCBytesPerSector *= DeviceInfo.wDevicesConnected;
-		DeviceInfo.wNumPageSpareFlag = DeviceInfo.wPageSpareSize -
-			DeviceInfo.wPageDataSize /
-			(ECC_SECTOR_SIZE * DeviceInfo.wDevicesConnected) *
-			DeviceInfo.wECCBytesPerSector
-			- DeviceInfo.wSpareSkipBytes;
-	}
-}
-
-static u16 get_onfi_nand_para(void)
-{
-	int i;
-	u16 blks_lun_l, blks_lun_h, n_of_luns;
-	u32 blockperlun, id;
-
-	iowrite32(DEVICE_RESET__BANK0, FlashReg + DEVICE_RESET);
-
-	while (!((ioread32(FlashReg + INTR_STATUS0) &
-		INTR_STATUS0__RST_COMP) |
-		(ioread32(FlashReg + INTR_STATUS0) &
-		INTR_STATUS0__TIME_OUT)))
-		;
-
-	if (ioread32(FlashReg + INTR_STATUS0) & INTR_STATUS0__RST_COMP) {
-		iowrite32(DEVICE_RESET__BANK1, FlashReg + DEVICE_RESET);
-		while (!((ioread32(FlashReg + INTR_STATUS1) &
-			INTR_STATUS1__RST_COMP) |
-			(ioread32(FlashReg + INTR_STATUS1) &
-			INTR_STATUS1__TIME_OUT)))
-			;
-
-		if (ioread32(FlashReg + INTR_STATUS1) &
-			INTR_STATUS1__RST_COMP) {
-			iowrite32(DEVICE_RESET__BANK2,
-				FlashReg + DEVICE_RESET);
-			while (!((ioread32(FlashReg + INTR_STATUS2) &
-				INTR_STATUS2__RST_COMP) |
-				(ioread32(FlashReg + INTR_STATUS2) &
-				INTR_STATUS2__TIME_OUT)))
-				;
-
-			if (ioread32(FlashReg + INTR_STATUS2) &
-				INTR_STATUS2__RST_COMP) {
-				iowrite32(DEVICE_RESET__BANK3,
-					FlashReg + DEVICE_RESET);
-				while (!((ioread32(FlashReg + INTR_STATUS3) &
-					INTR_STATUS3__RST_COMP) |
-					(ioread32(FlashReg + INTR_STATUS3) &
-					INTR_STATUS3__TIME_OUT)))
-					;
-			} else {
-				printk(KERN_ERR "Getting a time out for bank 2!\n");
-			}
-		} else {
-			printk(KERN_ERR "Getting a time out for bank 1!\n");
-		}
-	}
-
-	iowrite32(INTR_STATUS0__TIME_OUT, FlashReg + INTR_STATUS0);
-	iowrite32(INTR_STATUS1__TIME_OUT, FlashReg + INTR_STATUS1);
-	iowrite32(INTR_STATUS2__TIME_OUT, FlashReg + INTR_STATUS2);
-	iowrite32(INTR_STATUS3__TIME_OUT, FlashReg + INTR_STATUS3);
-
-	DeviceInfo.wONFIDevFeatures =
-		ioread32(FlashReg + ONFI_DEVICE_FEATURES);
-	DeviceInfo.wONFIOptCommands =
-		ioread32(FlashReg + ONFI_OPTIONAL_COMMANDS);
-	DeviceInfo.wONFITimingMode =
-		ioread32(FlashReg + ONFI_TIMING_MODE);
-	DeviceInfo.wONFIPgmCacheTimingMode =
-		ioread32(FlashReg + ONFI_PGM_CACHE_TIMING_MODE);
-
-	n_of_luns = ioread32(FlashReg + ONFI_DEVICE_NO_OF_LUNS) &
-		ONFI_DEVICE_NO_OF_LUNS__NO_OF_LUNS;
-	blks_lun_l = ioread32(FlashReg + ONFI_DEVICE_NO_OF_BLOCKS_PER_LUN_L);
-	blks_lun_h = ioread32(FlashReg + ONFI_DEVICE_NO_OF_BLOCKS_PER_LUN_U);
-
-	blockperlun = (blks_lun_h << 16) | blks_lun_l;
-
-	DeviceInfo.wTotalBlocks = n_of_luns * blockperlun;
-
-	if (!(ioread32(FlashReg + ONFI_TIMING_MODE) &
-		ONFI_TIMING_MODE__VALUE))
-		return FAIL;
-
-	for (i = 5; i > 0; i--) {
-		if (ioread32(FlashReg + ONFI_TIMING_MODE) & (0x01 << i))
-			break;
-	}
-
-	NAND_ONFi_Timing_Mode(i);
-
-	index_addr(MODE_11 | 0, 0x90);
-	index_addr(MODE_11 | 1, 0);
-
-	for (i = 0; i < 3; i++)
-		index_addr_read_data(MODE_11 | 2, &id);
-
-	nand_dbg_print(NAND_DBG_DEBUG, "3rd ID: 0x%x\n", id);
-
-	DeviceInfo.MLCDevice = id & 0x0C;
-
-	/* By now, all the ONFI devices we know support the page cache */
-	/* rw feature. So here we enable the pipeline_rw_ahead feature */
-	/* iowrite32(1, FlashReg + CACHE_WRITE_ENABLE); */
-	/* iowrite32(1, FlashReg + CACHE_READ_ENABLE);  */
-
-	return PASS;
-}
-
-static void get_samsung_nand_para(void)
-{
-	u8 no_of_planes;
-	u32 blk_size;
-	u64 plane_size, capacity;
-	u32 id_bytes[5];
-	int i;
-
-	index_addr((u32)(MODE_11 | 0), 0x90);
-	index_addr((u32)(MODE_11 | 1), 0);
-	for (i = 0; i < 5; i++)
-		index_addr_read_data((u32)(MODE_11 | 2), &id_bytes[i]);
-
-	nand_dbg_print(NAND_DBG_DEBUG,
-		"ID bytes: 0x%x, 0x%x, 0x%x, 0x%x, 0x%x\n",
-		id_bytes[0], id_bytes[1], id_bytes[2],
-		id_bytes[3], id_bytes[4]);
-
-	if ((id_bytes[1] & 0xff) == 0xd3) { /* Samsung K9WAG08U1A */
-		/* Set timing register values according to datasheet */
-		iowrite32(5, FlashReg + ACC_CLKS);
-		iowrite32(20, FlashReg + RE_2_WE);
-		iowrite32(12, FlashReg + WE_2_RE);
-		iowrite32(14, FlashReg + ADDR_2_DATA);
-		iowrite32(3, FlashReg + RDWR_EN_LO_CNT);
-		iowrite32(2, FlashReg + RDWR_EN_HI_CNT);
-		iowrite32(2, FlashReg + CS_SETUP_CNT);
-	}
-
-	no_of_planes = 1 << ((id_bytes[4] & 0x0c) >> 2);
-	plane_size  = (u64)64 << ((id_bytes[4] & 0x70) >> 4);
-	blk_size = 64 << ((ioread32(FlashReg + DEVICE_PARAM_1) & 0x30) >> 4);
-	capacity = (u64)128 * plane_size * no_of_planes;
-
-	DeviceInfo.wTotalBlocks = (u32)GLOB_u64_Div(capacity, blk_size);
-}
-
-static void get_toshiba_nand_para(void)
-{
-	void __iomem *scratch_reg;
-	u32 tmp;
-
-	/* Workaround to fix a controller bug which reports a wrong */
-	/* spare area size for some kind of Toshiba NAND device */
-	if ((ioread32(FlashReg + DEVICE_MAIN_AREA_SIZE) == 4096) &&
-		(ioread32(FlashReg + DEVICE_SPARE_AREA_SIZE) == 64)) {
-		iowrite32(216, FlashReg + DEVICE_SPARE_AREA_SIZE);
-		tmp = ioread32(FlashReg + DEVICES_CONNECTED) *
-			ioread32(FlashReg + DEVICE_SPARE_AREA_SIZE);
-		iowrite32(tmp, FlashReg + LOGICAL_PAGE_SPARE_SIZE);
-#if SUPPORT_15BITECC
-		iowrite32(15, FlashReg + ECC_CORRECTION);
-#elif SUPPORT_8BITECC
-		iowrite32(8, FlashReg + ECC_CORRECTION);
-#endif
-	}
-
-	/* As Toshiba NAND can not provide it's block number, */
-	/* so here we need user to provide the correct block */
-	/* number in a scratch register before the Linux NAND */
-	/* driver is loaded. If no valid value found in the scratch */
-	/* register, then we use default block number value */
-	scratch_reg = ioremap_nocache(SCRATCH_REG_ADDR, SCRATCH_REG_SIZE);
-	if (!scratch_reg) {
-		printk(KERN_ERR "Spectra: ioremap failed in %s, Line %d",
-			__FILE__, __LINE__);
-		DeviceInfo.wTotalBlocks = GLOB_HWCTL_DEFAULT_BLKS;
-	} else {
-		nand_dbg_print(NAND_DBG_WARN,
-			"Spectra: ioremap reg address: 0x%p\n", scratch_reg);
-		DeviceInfo.wTotalBlocks = 1 << ioread8(scratch_reg);
-		if (DeviceInfo.wTotalBlocks < 512)
-			DeviceInfo.wTotalBlocks = GLOB_HWCTL_DEFAULT_BLKS;
-		iounmap(scratch_reg);
-	}
-}
-
-static void get_hynix_nand_para(void)
-{
-	void __iomem *scratch_reg;
-	u32 main_size, spare_size;
-
-	switch (DeviceInfo.wDeviceID) {
-	case 0xD5: /* Hynix H27UAG8T2A, H27UBG8U5A or H27UCG8VFA */
-	case 0xD7: /* Hynix H27UDG8VEM, H27UCG8UDM or H27UCG8V5A */
-		iowrite32(128, FlashReg + PAGES_PER_BLOCK);
-		iowrite32(4096, FlashReg + DEVICE_MAIN_AREA_SIZE);
-		iowrite32(224, FlashReg + DEVICE_SPARE_AREA_SIZE);
-		main_size = 4096 * ioread32(FlashReg + DEVICES_CONNECTED);
-		spare_size = 224 * ioread32(FlashReg + DEVICES_CONNECTED);
-		iowrite32(main_size, FlashReg + LOGICAL_PAGE_DATA_SIZE);
-		iowrite32(spare_size, FlashReg + LOGICAL_PAGE_SPARE_SIZE);
-		iowrite32(0, FlashReg + DEVICE_WIDTH);
-#if SUPPORT_15BITECC
-		iowrite32(15, FlashReg + ECC_CORRECTION);
-#elif SUPPORT_8BITECC
-		iowrite32(8, FlashReg + ECC_CORRECTION);
-#endif
-		DeviceInfo.MLCDevice  = 1;
-		break;
-	default:
-		nand_dbg_print(NAND_DBG_WARN,
-			"Spectra: Unknown Hynix NAND (Device ID: 0x%x)."
-			"Will use default parameter values instead.\n",
-			DeviceInfo.wDeviceID);
-	}
-
-	scratch_reg = ioremap_nocache(SCRATCH_REG_ADDR, SCRATCH_REG_SIZE);
-	if (!scratch_reg) {
-		printk(KERN_ERR "Spectra: ioremap failed in %s, Line %d",
-			__FILE__, __LINE__);
-		DeviceInfo.wTotalBlocks = GLOB_HWCTL_DEFAULT_BLKS;
-	} else {
-		nand_dbg_print(NAND_DBG_WARN,
-			"Spectra: ioremap reg address: 0x%p\n", scratch_reg);
-		DeviceInfo.wTotalBlocks = 1 << ioread8(scratch_reg);
-		if (DeviceInfo.wTotalBlocks < 512)
-			DeviceInfo.wTotalBlocks = GLOB_HWCTL_DEFAULT_BLKS;
-		iounmap(scratch_reg);
-	}
-}
-
-static void find_valid_banks(void)
-{
-	u32 id[LLD_MAX_FLASH_BANKS];
-	int i;
-
-	totalUsedBanks = 0;
-	for (i = 0; i < LLD_MAX_FLASH_BANKS; i++) {
-		index_addr((u32)(MODE_11 | (i << 24) | 0), 0x90);
-		index_addr((u32)(MODE_11 | (i << 24) | 1), 0);
-		index_addr_read_data((u32)(MODE_11 | (i << 24) | 2), &id[i]);
-
-		nand_dbg_print(NAND_DBG_DEBUG,
-			"Return 1st ID for bank[%d]: %x\n", i, id[i]);
-
-		if (i == 0) {
-			if (id[i] & 0x0ff)
-				GLOB_valid_banks[i] = 1;
-		} else {
-			if ((id[i] & 0x0ff) == (id[0] & 0x0ff))
-				GLOB_valid_banks[i] = 1;
-		}
-
-		totalUsedBanks += GLOB_valid_banks[i];
-	}
-
-	nand_dbg_print(NAND_DBG_DEBUG,
-		"totalUsedBanks: %d\n", totalUsedBanks);
-}
-
-static void detect_partition_feature(void)
-{
-	if (ioread32(FlashReg + FEATURES) & FEATURES__PARTITION) {
-		if ((ioread32(FlashReg + PERM_SRC_ID_1) &
-			PERM_SRC_ID_1__SRCID) == SPECTRA_PARTITION_ID) {
-			DeviceInfo.wSpectraStartBlock =
-			    ((ioread32(FlashReg + MIN_MAX_BANK_1) &
-			      MIN_MAX_BANK_1__MIN_VALUE) *
-			     DeviceInfo.wTotalBlocks)
-			    +
-			    (ioread32(FlashReg + MIN_BLK_ADDR_1) &
-			    MIN_BLK_ADDR_1__VALUE);
-
-			DeviceInfo.wSpectraEndBlock =
-			    (((ioread32(FlashReg + MIN_MAX_BANK_1) &
-			       MIN_MAX_BANK_1__MAX_VALUE) >> 2) *
-			     DeviceInfo.wTotalBlocks)
-			    +
-			    (ioread32(FlashReg + MAX_BLK_ADDR_1) &
-			    MAX_BLK_ADDR_1__VALUE);
-
-			DeviceInfo.wTotalBlocks *= totalUsedBanks;
-
-			if (DeviceInfo.wSpectraEndBlock >=
-			    DeviceInfo.wTotalBlocks) {
-				DeviceInfo.wSpectraEndBlock =
-				    DeviceInfo.wTotalBlocks - 1;
-			}
-
-			DeviceInfo.wDataBlockNum =
-				DeviceInfo.wSpectraEndBlock -
-				DeviceInfo.wSpectraStartBlock + 1;
-		} else {
-			DeviceInfo.wTotalBlocks *= totalUsedBanks;
-			DeviceInfo.wSpectraStartBlock = SPECTRA_START_BLOCK;
-			DeviceInfo.wSpectraEndBlock =
-				DeviceInfo.wTotalBlocks - 1;
-			DeviceInfo.wDataBlockNum =
-				DeviceInfo.wSpectraEndBlock -
-				DeviceInfo.wSpectraStartBlock + 1;
-		}
-	} else {
-		DeviceInfo.wTotalBlocks *= totalUsedBanks;
-		DeviceInfo.wSpectraStartBlock = SPECTRA_START_BLOCK;
-		DeviceInfo.wSpectraEndBlock = DeviceInfo.wTotalBlocks - 1;
-		DeviceInfo.wDataBlockNum =
-			DeviceInfo.wSpectraEndBlock -
-			DeviceInfo.wSpectraStartBlock + 1;
-	}
-}
-
-static void dump_device_info(void)
-{
-	nand_dbg_print(NAND_DBG_DEBUG, "DeviceInfo:\n");
-	nand_dbg_print(NAND_DBG_DEBUG, "DeviceMaker: 0x%x\n",
-		DeviceInfo.wDeviceMaker);
-	nand_dbg_print(NAND_DBG_DEBUG, "DeviceID: 0x%x\n",
-		DeviceInfo.wDeviceID);
-	nand_dbg_print(NAND_DBG_DEBUG, "DeviceType: 0x%x\n",
-		DeviceInfo.wDeviceType);
-	nand_dbg_print(NAND_DBG_DEBUG, "SpectraStartBlock: %d\n",
-		DeviceInfo.wSpectraStartBlock);
-	nand_dbg_print(NAND_DBG_DEBUG, "SpectraEndBlock: %d\n",
-		DeviceInfo.wSpectraEndBlock);
-	nand_dbg_print(NAND_DBG_DEBUG, "TotalBlocks: %d\n",
-		DeviceInfo.wTotalBlocks);
-	nand_dbg_print(NAND_DBG_DEBUG, "PagesPerBlock: %d\n",
-		DeviceInfo.wPagesPerBlock);
-	nand_dbg_print(NAND_DBG_DEBUG, "PageSize: %d\n",
-		DeviceInfo.wPageSize);
-	nand_dbg_print(NAND_DBG_DEBUG, "PageDataSize: %d\n",
-		DeviceInfo.wPageDataSize);
-	nand_dbg_print(NAND_DBG_DEBUG, "PageSpareSize: %d\n",
-		DeviceInfo.wPageSpareSize);
-	nand_dbg_print(NAND_DBG_DEBUG, "NumPageSpareFlag: %d\n",
-		DeviceInfo.wNumPageSpareFlag);
-	nand_dbg_print(NAND_DBG_DEBUG, "ECCBytesPerSector: %d\n",
-		DeviceInfo.wECCBytesPerSector);
-	nand_dbg_print(NAND_DBG_DEBUG, "BlockSize: %d\n",
-		DeviceInfo.wBlockSize);
-	nand_dbg_print(NAND_DBG_DEBUG, "BlockDataSize: %d\n",
-		DeviceInfo.wBlockDataSize);
-	nand_dbg_print(NAND_DBG_DEBUG, "DataBlockNum: %d\n",
-		DeviceInfo.wDataBlockNum);
-	nand_dbg_print(NAND_DBG_DEBUG, "PlaneNum: %d\n",
-		DeviceInfo.bPlaneNum);
-	nand_dbg_print(NAND_DBG_DEBUG, "DeviceMainAreaSize: %d\n",
-		DeviceInfo.wDeviceMainAreaSize);
-	nand_dbg_print(NAND_DBG_DEBUG, "DeviceSpareAreaSize: %d\n",
-		DeviceInfo.wDeviceSpareAreaSize);
-	nand_dbg_print(NAND_DBG_DEBUG, "DevicesConnected: %d\n",
-		DeviceInfo.wDevicesConnected);
-	nand_dbg_print(NAND_DBG_DEBUG, "DeviceWidth: %d\n",
-		DeviceInfo.wDeviceWidth);
-	nand_dbg_print(NAND_DBG_DEBUG, "HWRevision: 0x%x\n",
-		DeviceInfo.wHWRevision);
-	nand_dbg_print(NAND_DBG_DEBUG, "HWFeatures: 0x%x\n",
-		DeviceInfo.wHWFeatures);
-	nand_dbg_print(NAND_DBG_DEBUG, "ONFIDevFeatures: 0x%x\n",
-		DeviceInfo.wONFIDevFeatures);
-	nand_dbg_print(NAND_DBG_DEBUG, "ONFIOptCommands: 0x%x\n",
-		DeviceInfo.wONFIOptCommands);
-	nand_dbg_print(NAND_DBG_DEBUG, "ONFITimingMode: 0x%x\n",
-		DeviceInfo.wONFITimingMode);
-	nand_dbg_print(NAND_DBG_DEBUG, "ONFIPgmCacheTimingMode: 0x%x\n",
-		DeviceInfo.wONFIPgmCacheTimingMode);
-	nand_dbg_print(NAND_DBG_DEBUG, "MLCDevice: %s\n",
-		DeviceInfo.MLCDevice ? "Yes" : "No");
-	nand_dbg_print(NAND_DBG_DEBUG, "SpareSkipBytes: %d\n",
-		DeviceInfo.wSpareSkipBytes);
-	nand_dbg_print(NAND_DBG_DEBUG, "BitsInPageNumber: %d\n",
-		DeviceInfo.nBitsInPageNumber);
-	nand_dbg_print(NAND_DBG_DEBUG, "BitsInPageDataSize: %d\n",
-		DeviceInfo.nBitsInPageDataSize);
-	nand_dbg_print(NAND_DBG_DEBUG, "BitsInBlockDataSize: %d\n",
-		DeviceInfo.nBitsInBlockDataSize);
-}
-
-u16 NAND_Read_Device_ID(void)
-{
-	u16 status = PASS;
-	u8 no_of_planes;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	iowrite32(0x02, FlashReg + SPARE_AREA_SKIP_BYTES);
-	iowrite32(0xffff, FlashReg + SPARE_AREA_MARKER);
-	DeviceInfo.wDeviceMaker = ioread32(FlashReg + MANUFACTURER_ID);
-	DeviceInfo.wDeviceID = ioread32(FlashReg + DEVICE_ID);
-	DeviceInfo.MLCDevice = ioread32(FlashReg + DEVICE_PARAM_0) & 0x0c;
-
-	if (ioread32(FlashReg + ONFI_DEVICE_NO_OF_LUNS) &
-		ONFI_DEVICE_NO_OF_LUNS__ONFI_DEVICE) { /* ONFI 1.0 NAND */
-		if (FAIL == get_onfi_nand_para())
-			return FAIL;
-	} else if (DeviceInfo.wDeviceMaker == 0xEC) { /* Samsung NAND */
-		get_samsung_nand_para();
-	} else if (DeviceInfo.wDeviceMaker == 0x98) { /* Toshiba NAND */
-		get_toshiba_nand_para();
-	} else if (DeviceInfo.wDeviceMaker == 0xAD) { /* Hynix NAND */
-		get_hynix_nand_para();
-	} else {
-		DeviceInfo.wTotalBlocks = GLOB_HWCTL_DEFAULT_BLKS;
-	}
-
-	nand_dbg_print(NAND_DBG_DEBUG, "Dump timing register values:"
-			"acc_clks: %d, re_2_we: %d, we_2_re: %d,"
-			"addr_2_data: %d, rdwr_en_lo_cnt: %d, "
-			"rdwr_en_hi_cnt: %d, cs_setup_cnt: %d\n",
-			ioread32(FlashReg + ACC_CLKS),
-			ioread32(FlashReg + RE_2_WE),
-			ioread32(FlashReg + WE_2_RE),
-			ioread32(FlashReg + ADDR_2_DATA),
-			ioread32(FlashReg + RDWR_EN_LO_CNT),
-			ioread32(FlashReg + RDWR_EN_HI_CNT),
-			ioread32(FlashReg + CS_SETUP_CNT));
-
-	DeviceInfo.wHWRevision = ioread32(FlashReg + REVISION);
-	DeviceInfo.wHWFeatures = ioread32(FlashReg + FEATURES);
-
-	DeviceInfo.wDeviceMainAreaSize =
-		ioread32(FlashReg + DEVICE_MAIN_AREA_SIZE);
-	DeviceInfo.wDeviceSpareAreaSize =
-		ioread32(FlashReg + DEVICE_SPARE_AREA_SIZE);
-
-	DeviceInfo.wPageDataSize =
-		ioread32(FlashReg + LOGICAL_PAGE_DATA_SIZE);
-
-	/* Note: When using the Micon 4K NAND device, the controller will report
-	 * Page Spare Size as 216 bytes. But Micron's Spec say it's 218 bytes.
-	 * And if force set it to 218 bytes, the controller can not work
-	 * correctly. So just let it be. But keep in mind that this bug may
-	 * cause
-	 * other problems in future.       - Yunpeng  2008-10-10
-	 */
-	DeviceInfo.wPageSpareSize =
-		ioread32(FlashReg + LOGICAL_PAGE_SPARE_SIZE);
-
-	DeviceInfo.wPagesPerBlock = ioread32(FlashReg + PAGES_PER_BLOCK);
-
-	DeviceInfo.wPageSize =
-	    DeviceInfo.wPageDataSize + DeviceInfo.wPageSpareSize;
-	DeviceInfo.wBlockSize =
-	    DeviceInfo.wPageSize * DeviceInfo.wPagesPerBlock;
-	DeviceInfo.wBlockDataSize =
-	    DeviceInfo.wPagesPerBlock * DeviceInfo.wPageDataSize;
-
-	DeviceInfo.wDeviceWidth = ioread32(FlashReg + DEVICE_WIDTH);
-	DeviceInfo.wDeviceType =
-		((ioread32(FlashReg + DEVICE_WIDTH) > 0) ? 16 : 8);
-
-	DeviceInfo.wDevicesConnected = ioread32(FlashReg + DEVICES_CONNECTED);
-
-	DeviceInfo.wSpareSkipBytes =
-		ioread32(FlashReg + SPARE_AREA_SKIP_BYTES) *
-		DeviceInfo.wDevicesConnected;
-
-	DeviceInfo.nBitsInPageNumber =
-		(u8)GLOB_Calc_Used_Bits(DeviceInfo.wPagesPerBlock);
-	DeviceInfo.nBitsInPageDataSize =
-		(u8)GLOB_Calc_Used_Bits(DeviceInfo.wPageDataSize);
-	DeviceInfo.nBitsInBlockDataSize =
-		(u8)GLOB_Calc_Used_Bits(DeviceInfo.wBlockDataSize);
-
-	set_ecc_config();
-
-	no_of_planes = ioread32(FlashReg + NUMBER_OF_PLANES) &
-		NUMBER_OF_PLANES__VALUE;
-
-	switch (no_of_planes) {
-	case 0:
-	case 1:
-	case 3:
-	case 7:
-		DeviceInfo.bPlaneNum = no_of_planes + 1;
-		break;
-	default:
-		status = FAIL;
-		break;
-	}
-
-	find_valid_banks();
-
-	detect_partition_feature();
-
-	dump_device_info();
-
-	return status;
-}
-
-u16 NAND_UnlockArrayAll(void)
-{
-	u64 start_addr, end_addr;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	start_addr = 0;
-	end_addr = ((u64)DeviceInfo.wBlockSize *
-		(DeviceInfo.wTotalBlocks - 1)) >>
-		DeviceInfo.nBitsInPageDataSize;
-
-	index_addr((u32)(MODE_10 | (u32)start_addr), 0x10);
-	index_addr((u32)(MODE_10 | (u32)end_addr), 0x11);
-
-	return PASS;
-}
-
-void NAND_LLD_Enable_Disable_Interrupts(u16 INT_ENABLE)
-{
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	if (INT_ENABLE)
-		iowrite32(1, FlashReg + GLOBAL_INT_ENABLE);
-	else
-		iowrite32(0, FlashReg + GLOBAL_INT_ENABLE);
-}
-
-u16 NAND_Erase_Block(u32 block)
-{
-	u16 status = PASS;
-	u64 flash_add;
-	u16 flash_bank;
-	u32 intr_status = 0;
-	u32 intr_status_addresses[4] = {INTR_STATUS0,
-		INTR_STATUS1, INTR_STATUS2, INTR_STATUS3};
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	flash_add = (u64)(block % (DeviceInfo.wTotalBlocks / totalUsedBanks))
-		* DeviceInfo.wBlockDataSize;
-
-	flash_bank = block / (DeviceInfo.wTotalBlocks / totalUsedBanks);
-
-	if (block >= DeviceInfo.wTotalBlocks)
-		status = FAIL;
-
-	if (status == PASS) {
-		intr_status = intr_status_addresses[flash_bank];
-
-		iowrite32(INTR_STATUS0__ERASE_COMP | INTR_STATUS0__ERASE_FAIL,
-			FlashReg + intr_status);
-
-		index_addr((u32)(MODE_10 | (flash_bank << 24) |
-			(flash_add >> DeviceInfo.nBitsInPageDataSize)), 1);
-
-		while (!(ioread32(FlashReg + intr_status) &
-			(INTR_STATUS0__ERASE_COMP | INTR_STATUS0__ERASE_FAIL)))
-			;
-
-		if (ioread32(FlashReg + intr_status) &
-			INTR_STATUS0__ERASE_FAIL)
-			status = FAIL;
-
-		iowrite32(INTR_STATUS0__ERASE_COMP | INTR_STATUS0__ERASE_FAIL,
-			FlashReg + intr_status);
-	}
-
-	return status;
-}
-
-static u32 Boundary_Check_Block_Page(u32 block, u16 page,
-						u16 page_count)
-{
-	u32 status = PASS;
-
-	if (block >= DeviceInfo.wTotalBlocks)
-		status = FAIL;
-
-	if (page + page_count > DeviceInfo.wPagesPerBlock)
-		status = FAIL;
-
-	return status;
-}
-
-u16 NAND_Read_Page_Spare(u8 *read_data, u32 block, u16 page,
-			    u16 page_count)
-{
-	u32 status = PASS;
-	u32 i;
-	u64 flash_add;
-	u32 PageSpareSize = DeviceInfo.wPageSpareSize;
-	u32 spareFlagBytes = DeviceInfo.wNumPageSpareFlag;
-	u32 flash_bank;
-	u32 intr_status = 0;
-	u32 intr_status_addresses[4] = {INTR_STATUS0,
-		INTR_STATUS1, INTR_STATUS2, INTR_STATUS3};
-	u8 *page_spare = buf_read_page_spare;
-
-	if (block >= DeviceInfo.wTotalBlocks) {
-		printk(KERN_ERR "block too big: %d\n", (int)block);
-		status = FAIL;
-	}
-
-	if (page >= DeviceInfo.wPagesPerBlock) {
-		printk(KERN_ERR "page too big: %d\n", page);
-		status = FAIL;
-	}
-
-	if (page_count > 1) {
-		printk(KERN_ERR "page count too big: %d\n", page_count);
-		status = FAIL;
-	}
-
-	flash_add = (u64)(block % (DeviceInfo.wTotalBlocks / totalUsedBanks))
-		* DeviceInfo.wBlockDataSize +
-		(u64)page * DeviceInfo.wPageDataSize;
-
-	flash_bank = block / (DeviceInfo.wTotalBlocks / totalUsedBanks);
-
-	if (status == PASS) {
-		intr_status = intr_status_addresses[flash_bank];
-		iowrite32(ioread32(FlashReg + intr_status),
-			FlashReg + intr_status);
-
-		index_addr((u32)(MODE_10 | (flash_bank << 24) |
-			(flash_add >> DeviceInfo.nBitsInPageDataSize)),
-			0x41);
-		index_addr((u32)(MODE_10 | (flash_bank << 24) |
-			(flash_add >> DeviceInfo.nBitsInPageDataSize)),
-			0x2000 | page_count);
-		while (!(ioread32(FlashReg + intr_status) &
-			INTR_STATUS0__LOAD_COMP))
-			;
-
-		iowrite32((u32)(MODE_01 | (flash_bank << 24) |
-			(flash_add >> DeviceInfo.nBitsInPageDataSize)),
-			FlashMem);
-
-		for (i = 0; i < (PageSpareSize / 4); i++)
-			*((u32 *)page_spare + i) =
-					ioread32(FlashMem + 0x10);
-
-		if (enable_ecc) {
-			for (i = 0; i < spareFlagBytes; i++)
-				read_data[i] =
-					page_spare[PageSpareSize -
-						spareFlagBytes + i];
-			for (i = 0; i < (PageSpareSize - spareFlagBytes); i++)
-				read_data[spareFlagBytes + i] =
-							page_spare[i];
-		} else {
-			for (i = 0; i < PageSpareSize; i++)
-				read_data[i] = page_spare[i];
-		}
-
-		index_addr((u32)(MODE_10 | (flash_bank << 24) |
-			(flash_add >> DeviceInfo.nBitsInPageDataSize)), 0x42);
-	}
-
-	return status;
-}
-
-/* No use function. Should be removed later */
-u16 NAND_Write_Page_Spare(u8 *write_data, u32 block, u16 page,
-			     u16 page_count)
-{
-	printk(KERN_ERR
-	       "Error! This function (NAND_Write_Page_Spare) should never"
-		" be called!\n");
-	return ERR;
-}
-
-/* op value:  0 - DDMA read;  1 - DDMA write */
-static void ddma_trans(u8 *data, u64 flash_add,
-			u32 flash_bank, int op, u32 numPages)
-{
-	u32 data_addr;
-
-	/* Map virtual address to bus address for DDMA */
-	data_addr = virt_to_bus(data);
-
-	index_addr((u32)(MODE_10 | (flash_bank << 24) |
-		(flash_add >> DeviceInfo.nBitsInPageDataSize)),
-		(u16)(2 << 12) | (op << 8) | numPages);
-
-	index_addr((u32)(MODE_10 | (flash_bank << 24) |
-		((u16)(0x0FFFF & (data_addr >> 16)) << 8)),
-		(u16)(2 << 12) | (2 << 8) | 0);
-
-	index_addr((u32)(MODE_10 | (flash_bank << 24) |
-		((u16)(0x0FFFF & data_addr) << 8)),
-		(u16)(2 << 12) | (3 << 8) | 0);
-
-	index_addr((u32)(MODE_10 | (flash_bank << 24) |
-		(1 << 16) | (0x40 << 8)),
-		(u16)(2 << 12) | (4 << 8) | 0);
-}
-
-/* If data in buf are all 0xff, then return 1; otherwise return 0 */
-static int check_all_1(u8 *buf)
-{
-	int i, j, cnt;
-
-	for (i = 0; i < DeviceInfo.wPageDataSize; i++) {
-		if (buf[i] != 0xff) {
-			cnt = 0;
-			nand_dbg_print(NAND_DBG_WARN,
-				"the first non-0xff data byte is: %d\n", i);
-			for (j = i; j < DeviceInfo.wPageDataSize; j++) {
-				nand_dbg_print(NAND_DBG_WARN, "0x%x ", buf[j]);
-				cnt++;
-				if (cnt > 8)
-					break;
-			}
-			nand_dbg_print(NAND_DBG_WARN, "\n");
-			return 0;
-		}
-	}
-
-	return 1;
-}
-
-static int do_ecc_new(unsigned long bank, u8 *buf,
-				u32 block, u16 page)
-{
-	int status = PASS;
-	u16 err_page = 0;
-	u16 err_byte;
-	u8 err_sect;
-	u8 err_dev;
-	u16 err_fix_info;
-	u16 err_addr;
-	u32 ecc_sect_size;
-	u8 *err_pos;
-	u32 err_page_addr[4] = {ERR_PAGE_ADDR0,
-		ERR_PAGE_ADDR1, ERR_PAGE_ADDR2, ERR_PAGE_ADDR3};
-
-	ecc_sect_size = ECC_SECTOR_SIZE * (DeviceInfo.wDevicesConnected);
-
-	do {
-		err_page = ioread32(FlashReg + err_page_addr[bank]);
-		err_addr = ioread32(FlashReg + ECC_ERROR_ADDRESS);
-		err_byte = err_addr & ECC_ERROR_ADDRESS__OFFSET;
-		err_sect = ((err_addr & ECC_ERROR_ADDRESS__SECTOR_NR) >> 12);
-		err_fix_info = ioread32(FlashReg + ERR_CORRECTION_INFO);
-		err_dev = ((err_fix_info & ERR_CORRECTION_INFO__DEVICE_NR)
-			>> 8);
-		if (err_fix_info & ERR_CORRECTION_INFO__ERROR_TYPE) {
-			nand_dbg_print(NAND_DBG_WARN,
-				"%s, Line %d Uncorrectable ECC error "
-				"when read block %d page %d."
-				"PTN_INTR register: 0x%x "
-				"err_page: %d, err_sect: %d, err_byte: %d, "
-				"err_dev: %d, ecc_sect_size: %d, "
-				"err_fix_info: 0x%x\n",
-				__FILE__, __LINE__, block, page,
-				ioread32(FlashReg + PTN_INTR),
-				err_page, err_sect, err_byte, err_dev,
-				ecc_sect_size, (u32)err_fix_info);
-
-			if (check_all_1(buf))
-				nand_dbg_print(NAND_DBG_WARN, "%s, Line %d"
-					       "All 0xff!\n",
-					       __FILE__, __LINE__);
-			else
-				nand_dbg_print(NAND_DBG_WARN, "%s, Line %d"
-					       "Not all 0xff!\n",
-					       __FILE__, __LINE__);
-			status = FAIL;
-		} else {
-			nand_dbg_print(NAND_DBG_WARN,
-				"%s, Line %d Found ECC error "
-				"when read block %d page %d."
-				"err_page: %d, err_sect: %d, err_byte: %d, "
-				"err_dev: %d, ecc_sect_size: %d, "
-				"err_fix_info: 0x%x\n",
-				__FILE__, __LINE__, block, page,
-				err_page, err_sect, err_byte, err_dev,
-				ecc_sect_size, (u32)err_fix_info);
-			if (err_byte < ECC_SECTOR_SIZE) {
-				err_pos = buf +
-					(err_page - page) *
-					DeviceInfo.wPageDataSize +
-					err_sect * ecc_sect_size +
-					err_byte *
-					DeviceInfo.wDevicesConnected +
-					err_dev;
-
-				*err_pos ^= err_fix_info &
-					ERR_CORRECTION_INFO__BYTEMASK;
-			}
-		}
-	} while (!(err_fix_info & ERR_CORRECTION_INFO__LAST_ERR_INFO));
-
-	return status;
-}
-
-u16 NAND_Read_Page_Main_Polling(u8 *read_data,
-		u32 block, u16 page, u16 page_count)
-{
-	u32 status = PASS;
-	u64 flash_add;
-	u32 intr_status = 0;
-	u32 flash_bank;
-	u32 intr_status_addresses[4] = {INTR_STATUS0,
-		INTR_STATUS1, INTR_STATUS2, INTR_STATUS3};
-	u8 *read_data_l;
-
-	nand_dbg_print(NAND_DBG_WARN, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	status = Boundary_Check_Block_Page(block, page, page_count);
-	if (status != PASS)
-		return status;
-
-	flash_add = (u64)(block % (DeviceInfo.wTotalBlocks / totalUsedBanks))
-		* DeviceInfo.wBlockDataSize +
-		(u64)page * DeviceInfo.wPageDataSize;
-	flash_bank = block / (DeviceInfo.wTotalBlocks / totalUsedBanks);
-
-	iowrite32(0, FlashReg + TRANSFER_SPARE_REG);
-
-	intr_status = intr_status_addresses[flash_bank];
-	iowrite32(ioread32(FlashReg + intr_status), FlashReg + intr_status);
-
-	if (page_count > 1) {
-		read_data_l = read_data;
-		while (page_count > MAX_PAGES_PER_RW) {
-			if (ioread32(FlashReg + MULTIPLANE_OPERATION))
-				status = NAND_Multiplane_Read(read_data_l,
-					block, page, MAX_PAGES_PER_RW);
-			else
-				status = NAND_Pipeline_Read_Ahead_Polling(
-					read_data_l, block, page,
-					MAX_PAGES_PER_RW);
-
-			if (status == FAIL)
-				return status;
-
-			read_data_l += DeviceInfo.wPageDataSize *
-					MAX_PAGES_PER_RW;
-			page_count -= MAX_PAGES_PER_RW;
-			page += MAX_PAGES_PER_RW;
-		}
-		if (ioread32(FlashReg + MULTIPLANE_OPERATION))
-			status = NAND_Multiplane_Read(read_data_l,
-					block, page, page_count);
-		else
-			status = NAND_Pipeline_Read_Ahead_Polling(
-					read_data_l, block, page, page_count);
-
-		return status;
-	}
-
-	iowrite32(1, FlashReg + DMA_ENABLE);
-	while (!(ioread32(FlashReg + DMA_ENABLE) & DMA_ENABLE__FLAG))
-		;
-
-	iowrite32(0, FlashReg + TRANSFER_SPARE_REG);
-	iowrite32(ioread32(FlashReg + intr_status), FlashReg + intr_status);
-
-	ddma_trans(read_data, flash_add, flash_bank, 0, 1);
-
-	if (enable_ecc) {
-		while (!(ioread32(FlashReg + intr_status) &
-			(INTR_STATUS0__ECC_TRANSACTION_DONE |
-			INTR_STATUS0__ECC_ERR)))
-			;
-
-		if (ioread32(FlashReg + intr_status) &
-			INTR_STATUS0__ECC_ERR) {
-			iowrite32(INTR_STATUS0__ECC_ERR,
-				FlashReg + intr_status);
-			status = do_ecc_new(flash_bank, read_data,
-					block, page);
-		}
-
-		if (ioread32(FlashReg + intr_status) &
-			INTR_STATUS0__ECC_TRANSACTION_DONE &
-			INTR_STATUS0__ECC_ERR)
-			iowrite32(INTR_STATUS0__ECC_TRANSACTION_DONE |
-				INTR_STATUS0__ECC_ERR,
-				FlashReg + intr_status);
-		else if (ioread32(FlashReg + intr_status) &
-			INTR_STATUS0__ECC_TRANSACTION_DONE)
-			iowrite32(INTR_STATUS0__ECC_TRANSACTION_DONE,
-				FlashReg + intr_status);
-		else if (ioread32(FlashReg + intr_status) &
-			INTR_STATUS0__ECC_ERR)
-			iowrite32(INTR_STATUS0__ECC_ERR,
-				FlashReg + intr_status);
-	} else {
-		while (!(ioread32(FlashReg + intr_status) &
-			INTR_STATUS0__DMA_CMD_COMP))
-			;
-		iowrite32(INTR_STATUS0__DMA_CMD_COMP, FlashReg + intr_status);
-	}
-
-	iowrite32(ioread32(FlashReg + intr_status), FlashReg + intr_status);
-
-	iowrite32(0, FlashReg + DMA_ENABLE);
-	while ((ioread32(FlashReg + DMA_ENABLE) & DMA_ENABLE__FLAG))
-		;
-
-	return status;
-}
-
-u16 NAND_Pipeline_Read_Ahead_Polling(u8 *read_data,
-			u32 block, u16 page, u16 page_count)
-{
-	u32 status = PASS;
-	u32 NumPages = page_count;
-	u64 flash_add;
-	u32 flash_bank;
-	u32 intr_status = 0;
-	u32 intr_status_addresses[4] = {INTR_STATUS0,
-		INTR_STATUS1, INTR_STATUS2, INTR_STATUS3};
-	u32 ecc_done_OR_dma_comp;
-
-	nand_dbg_print(NAND_DBG_WARN, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	status = Boundary_Check_Block_Page(block, page, page_count);
-
-	if (page_count < 2)
-		status = FAIL;
-
-	flash_add = (u64)(block % (DeviceInfo.wTotalBlocks / totalUsedBanks))
-		*DeviceInfo.wBlockDataSize +
-		(u64)page * DeviceInfo.wPageDataSize;
-
-	flash_bank = block / (DeviceInfo.wTotalBlocks / totalUsedBanks);
-
-	if (status == PASS) {
-		intr_status = intr_status_addresses[flash_bank];
-		iowrite32(ioread32(FlashReg + intr_status),
-			FlashReg + intr_status);
-
-		iowrite32(1, FlashReg + DMA_ENABLE);
-		while (!(ioread32(FlashReg + DMA_ENABLE) & DMA_ENABLE__FLAG))
-			;
-
-		iowrite32(0, FlashReg + TRANSFER_SPARE_REG);
-
-		index_addr((u32)(MODE_10 | (flash_bank << 24) |
-			(flash_add >> DeviceInfo.nBitsInPageDataSize)), 0x42);
-		ddma_trans(read_data, flash_add, flash_bank, 0, NumPages);
-
-		ecc_done_OR_dma_comp = 0;
-		while (1) {
-			if (enable_ecc) {
-				while (!ioread32(FlashReg + intr_status))
-					;
-
-				if (ioread32(FlashReg + intr_status) &
-					INTR_STATUS0__ECC_ERR) {
-					iowrite32(INTR_STATUS0__ECC_ERR,
-						FlashReg + intr_status);
-					status = do_ecc_new(flash_bank,
-						read_data, block, page);
-				} else if (ioread32(FlashReg + intr_status) &
-					INTR_STATUS0__DMA_CMD_COMP) {
-					iowrite32(INTR_STATUS0__DMA_CMD_COMP,
-						FlashReg + intr_status);
-
-					if (1 == ecc_done_OR_dma_comp)
-						break;
-
-					ecc_done_OR_dma_comp = 1;
-				} else if (ioread32(FlashReg + intr_status) &
-					INTR_STATUS0__ECC_TRANSACTION_DONE) {
-					iowrite32(
-					INTR_STATUS0__ECC_TRANSACTION_DONE,
-					FlashReg + intr_status);
-
-					if (1 == ecc_done_OR_dma_comp)
-						break;
-
-					ecc_done_OR_dma_comp = 1;
-				}
-			} else {
-				while (!(ioread32(FlashReg + intr_status) &
-					INTR_STATUS0__DMA_CMD_COMP))
-					;
-
-				iowrite32(INTR_STATUS0__DMA_CMD_COMP,
-					FlashReg + intr_status);
-				break;
-			}
-
-			iowrite32((~INTR_STATUS0__ECC_ERR) &
-				(~INTR_STATUS0__ECC_TRANSACTION_DONE) &
-				(~INTR_STATUS0__DMA_CMD_COMP),
-				FlashReg + intr_status);
-
-		}
-
-		iowrite32(ioread32(FlashReg + intr_status),
-			FlashReg + intr_status);
-
-		iowrite32(0, FlashReg + DMA_ENABLE);
-
-		while ((ioread32(FlashReg + DMA_ENABLE) & DMA_ENABLE__FLAG))
-			;
-	}
-	return status;
-}
-
-u16 NAND_Read_Page_Main(u8 *read_data, u32 block, u16 page,
-			   u16 page_count)
-{
-	u32 status = PASS;
-	u64 flash_add;
-	u32 intr_status = 0;
-	u32 flash_bank;
-	u32 intr_status_addresses[4] = {INTR_STATUS0,
-		INTR_STATUS1, INTR_STATUS2, INTR_STATUS3};
-	int ret;
-	u8 *read_data_l;
-
-	nand_dbg_print(NAND_DBG_DEBUG, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	status = Boundary_Check_Block_Page(block, page, page_count);
-	if (status != PASS)
-		return status;
-
-	flash_add = (u64)(block % (DeviceInfo.wTotalBlocks / totalUsedBanks))
-		* DeviceInfo.wBlockDataSize +
-		(u64)page * DeviceInfo.wPageDataSize;
-	flash_bank = block / (DeviceInfo.wTotalBlocks / totalUsedBanks);
-
-	iowrite32(0, FlashReg + TRANSFER_SPARE_REG);
-
-	intr_status = intr_status_addresses[flash_bank];
-	iowrite32(ioread32(FlashReg + intr_status), FlashReg + intr_status);
-
-	if (page_count > 1) {
-		read_data_l = read_data;
-		while (page_count > MAX_PAGES_PER_RW) {
-			if (ioread32(FlashReg + MULTIPLANE_OPERATION))
-				status = NAND_Multiplane_Read(read_data_l,
-					block, page, MAX_PAGES_PER_RW);
-			else
-				status = NAND_Pipeline_Read_Ahead(
-					read_data_l, block, page,
-					MAX_PAGES_PER_RW);
-
-			if (status == FAIL)
-				return status;
-
-			read_data_l += DeviceInfo.wPageDataSize *
-					MAX_PAGES_PER_RW;
-			page_count -= MAX_PAGES_PER_RW;
-			page += MAX_PAGES_PER_RW;
-		}
-		if (ioread32(FlashReg + MULTIPLANE_OPERATION))
-			status = NAND_Multiplane_Read(read_data_l,
-					block, page, page_count);
-		else
-			status = NAND_Pipeline_Read_Ahead(
-					read_data_l, block, page, page_count);
-
-		return status;
-	}
-
-	iowrite32(1, FlashReg + DMA_ENABLE);
-	while (!(ioread32(FlashReg + DMA_ENABLE) & DMA_ENABLE__FLAG))
-		;
-
-	iowrite32(0, FlashReg + TRANSFER_SPARE_REG);
-	iowrite32(ioread32(FlashReg + intr_status), FlashReg + intr_status);
-
-	/* Fill the mrst_nand_info structure */
-	info.state = INT_READ_PAGE_MAIN;
-	info.read_data = read_data;
-	info.flash_bank = flash_bank;
-	info.block = block;
-	info.page = page;
-	info.ret = PASS;
-
-	ddma_trans(read_data, flash_add, flash_bank, 0, 1);
-
-	iowrite32(1, FlashReg + GLOBAL_INT_ENABLE); /* Enable Interrupt */
-
-	ret = wait_for_completion_timeout(&info.complete, 10 * HZ);
-	if (!ret) {
-		printk(KERN_ERR "Wait for completion timeout "
-			"in %s, Line %d\n", __FILE__, __LINE__);
-		status = ERR;
-	} else {
-		status = info.ret;
-	}
-
-	iowrite32(ioread32(FlashReg + intr_status), FlashReg + intr_status);
-
-	iowrite32(0, FlashReg + DMA_ENABLE);
-	while ((ioread32(FlashReg + DMA_ENABLE) & DMA_ENABLE__FLAG))
-		;
-
-	return status;
-}
-
-void Conv_Spare_Data_Log2Phy_Format(u8 *data)
-{
-	int i;
-	const u32 spareFlagBytes = DeviceInfo.wNumPageSpareFlag;
-	const u32 PageSpareSize  = DeviceInfo.wPageSpareSize;
-
-	if (enable_ecc) {
-		for (i = spareFlagBytes - 1; i >= 0; i--)
-			data[PageSpareSize - spareFlagBytes + i] = data[i];
-	}
-}
-
-void Conv_Spare_Data_Phy2Log_Format(u8 *data)
-{
-	int i;
-	const u32 spareFlagBytes = DeviceInfo.wNumPageSpareFlag;
-	const u32 PageSpareSize = DeviceInfo.wPageSpareSize;
-
-	if (enable_ecc) {
-		for (i = 0; i < spareFlagBytes; i++)
-			data[i] = data[PageSpareSize - spareFlagBytes + i];
-	}
-}
-
-
-void Conv_Main_Spare_Data_Log2Phy_Format(u8 *data, u16 page_count)
-{
-	const u32 PageSize = DeviceInfo.wPageSize;
-	const u32 PageDataSize = DeviceInfo.wPageDataSize;
-	const u32 eccBytes = DeviceInfo.wECCBytesPerSector;
-	const u32 spareSkipBytes = DeviceInfo.wSpareSkipBytes;
-	const u32 spareFlagBytes = DeviceInfo.wNumPageSpareFlag;
-	u32 eccSectorSize;
-	u32 page_offset;
-	int i, j;
-
-	eccSectorSize = ECC_SECTOR_SIZE * (DeviceInfo.wDevicesConnected);
-	if (enable_ecc) {
-		while (page_count > 0) {
-			page_offset = (page_count - 1) * PageSize;
-			j = (DeviceInfo.wPageDataSize / eccSectorSize);
-			for (i = spareFlagBytes - 1; i >= 0; i--)
-				data[page_offset +
-					(eccSectorSize + eccBytes) * j + i] =
-					data[page_offset + PageDataSize + i];
-			for (j--; j >= 1; j--) {
-				for (i = eccSectorSize - 1; i >= 0; i--)
-					data[page_offset +
-					(eccSectorSize + eccBytes) * j + i] =
-						data[page_offset +
-						eccSectorSize * j + i];
-			}
-			for (i = (PageSize - spareSkipBytes) - 1;
-				i >= PageDataSize; i--)
-				data[page_offset + i + spareSkipBytes] =
-					data[page_offset + i];
-			page_count--;
-		}
-	}
-}
-
-void Conv_Main_Spare_Data_Phy2Log_Format(u8 *data, u16 page_count)
-{
-	const u32 PageSize = DeviceInfo.wPageSize;
-	const u32 PageDataSize = DeviceInfo.wPageDataSize;
-	const u32 eccBytes = DeviceInfo.wECCBytesPerSector;
-	const u32 spareSkipBytes = DeviceInfo.wSpareSkipBytes;
-	const u32 spareFlagBytes = DeviceInfo.wNumPageSpareFlag;
-	u32 eccSectorSize;
-	u32 page_offset;
-	int i, j;
-
-	eccSectorSize = ECC_SECTOR_SIZE * (DeviceInfo.wDevicesConnected);
-	if (enable_ecc) {
-		while (page_count > 0) {
-			page_offset = (page_count - 1) * PageSize;
-			for (i = PageDataSize;
-				i < PageSize - spareSkipBytes;
-				i++)
-				data[page_offset + i] =
-					data[page_offset + i +
-					spareSkipBytes];
-			for (j = 1;
-			j < DeviceInfo.wPageDataSize / eccSectorSize;
-			j++) {
-				for (i = 0; i < eccSectorSize; i++)
-					data[page_offset +
-					eccSectorSize * j + i] =
-						data[page_offset +
-						(eccSectorSize + eccBytes) * j
-						+ i];
-			}
-			for (i = 0; i < spareFlagBytes; i++)
-				data[page_offset + PageDataSize + i] =
-					data[page_offset +
-					(eccSectorSize + eccBytes) * j + i];
-			page_count--;
-		}
-	}
-}
-
-/* Un-tested function */
-u16 NAND_Multiplane_Read(u8 *read_data, u32 block, u16 page,
-			    u16 page_count)
-{
-	u32 status = PASS;
-	u32 NumPages = page_count;
-	u64 flash_add;
-	u32 flash_bank;
-	u32 intr_status = 0;
-	u32 intr_status_addresses[4] = {INTR_STATUS0,
-		INTR_STATUS1, INTR_STATUS2, INTR_STATUS3};
-	u32 ecc_done_OR_dma_comp;
-
-	nand_dbg_print(NAND_DBG_WARN, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	status = Boundary_Check_Block_Page(block, page, page_count);
-
-	flash_add = (u64)(block % (DeviceInfo.wTotalBlocks / totalUsedBanks))
-		* DeviceInfo.wBlockDataSize +
-		(u64)page * DeviceInfo.wPageDataSize;
-
-	flash_bank = block / (DeviceInfo.wTotalBlocks / totalUsedBanks);
-
-	if (status == PASS) {
-		intr_status = intr_status_addresses[flash_bank];
-		iowrite32(ioread32(FlashReg + intr_status),
-			FlashReg + intr_status);
-
-		iowrite32(0, FlashReg + TRANSFER_SPARE_REG);
-		iowrite32(0x01, FlashReg + MULTIPLANE_OPERATION);
-
-		iowrite32(1, FlashReg + DMA_ENABLE);
-		while (!(ioread32(FlashReg + DMA_ENABLE) & DMA_ENABLE__FLAG))
-			;
-		index_addr((u32)(MODE_10 | (flash_bank << 24) |
-			(flash_add >> DeviceInfo.nBitsInPageDataSize)), 0x42);
-		ddma_trans(read_data, flash_add, flash_bank, 0, NumPages);
-
-		ecc_done_OR_dma_comp = 0;
-		while (1) {
-			if (enable_ecc) {
-				while (!ioread32(FlashReg + intr_status))
-					;
-
-				if (ioread32(FlashReg + intr_status) &
-					INTR_STATUS0__ECC_ERR) {
-					iowrite32(INTR_STATUS0__ECC_ERR,
-						FlashReg + intr_status);
-					status = do_ecc_new(flash_bank,
-						read_data, block, page);
-				} else if (ioread32(FlashReg + intr_status) &
-					INTR_STATUS0__DMA_CMD_COMP) {
-					iowrite32(INTR_STATUS0__DMA_CMD_COMP,
-						FlashReg + intr_status);
-
-					if (1 == ecc_done_OR_dma_comp)
-						break;
-
-					ecc_done_OR_dma_comp = 1;
-				} else if (ioread32(FlashReg + intr_status) &
-					INTR_STATUS0__ECC_TRANSACTION_DONE) {
-					iowrite32(
-					INTR_STATUS0__ECC_TRANSACTION_DONE,
-					FlashReg + intr_status);
-
-					if (1 == ecc_done_OR_dma_comp)
-						break;
-
-					ecc_done_OR_dma_comp = 1;
-				}
-			} else {
-				while (!(ioread32(FlashReg + intr_status) &
-					INTR_STATUS0__DMA_CMD_COMP))
-					;
-				iowrite32(INTR_STATUS0__DMA_CMD_COMP,
-					FlashReg + intr_status);
-				break;
-			}
-
-			iowrite32((~INTR_STATUS0__ECC_ERR) &
-				(~INTR_STATUS0__ECC_TRANSACTION_DONE) &
-				(~INTR_STATUS0__DMA_CMD_COMP),
-				FlashReg + intr_status);
-
-		}
-
-		iowrite32(ioread32(FlashReg + intr_status),
-			FlashReg + intr_status);
-
-		iowrite32(0, FlashReg + DMA_ENABLE);
-
-		while ((ioread32(FlashReg + DMA_ENABLE) & DMA_ENABLE__FLAG))
-			;
-
-		iowrite32(0, FlashReg + MULTIPLANE_OPERATION);
-	}
-
-	return status;
-}
-
-u16 NAND_Pipeline_Read_Ahead(u8 *read_data, u32 block,
-				u16 page, u16 page_count)
-{
-	u32 status = PASS;
-	u32 NumPages = page_count;
-	u64 flash_add;
-	u32 flash_bank;
-	u32 intr_status = 0;
-	u32 intr_status_addresses[4] = {INTR_STATUS0,
-		INTR_STATUS1, INTR_STATUS2, INTR_STATUS3};
-	int ret;
-
-	nand_dbg_print(NAND_DBG_DEBUG, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	status = Boundary_Check_Block_Page(block, page, page_count);
-
-	if (page_count < 2)
-		status = FAIL;
-
-	if (status != PASS)
-		return status;
-
-	flash_add = (u64)(block % (DeviceInfo.wTotalBlocks / totalUsedBanks))
-		*DeviceInfo.wBlockDataSize +
-		(u64)page * DeviceInfo.wPageDataSize;
-
-	flash_bank = block / (DeviceInfo.wTotalBlocks / totalUsedBanks);
-
-	intr_status = intr_status_addresses[flash_bank];
-	iowrite32(ioread32(FlashReg + intr_status), FlashReg + intr_status);
-
-	iowrite32(1, FlashReg + DMA_ENABLE);
-	while (!(ioread32(FlashReg + DMA_ENABLE) & DMA_ENABLE__FLAG))
-		;
-
-	iowrite32(0, FlashReg + TRANSFER_SPARE_REG);
-
-	/* Fill the mrst_nand_info structure */
-	info.state = INT_PIPELINE_READ_AHEAD;
-	info.read_data = read_data;
-	info.flash_bank = flash_bank;
-	info.block = block;
-	info.page = page;
-	info.ret = PASS;
-
-	index_addr((u32)(MODE_10 | (flash_bank << 24) |
-		(flash_add >> DeviceInfo.nBitsInPageDataSize)), 0x42);
-
-	ddma_trans(read_data, flash_add, flash_bank, 0, NumPages);
-
-	iowrite32(1, FlashReg + GLOBAL_INT_ENABLE); /* Enable Interrupt */
-
-	ret = wait_for_completion_timeout(&info.complete, 10 * HZ);
-	if (!ret) {
-		printk(KERN_ERR "Wait for completion timeout "
-			"in %s, Line %d\n", __FILE__, __LINE__);
-		status = ERR;
-	} else {
-		status = info.ret;
-	}
-
-	iowrite32(ioread32(FlashReg + intr_status), FlashReg + intr_status);
-
-	iowrite32(0, FlashReg + DMA_ENABLE);
-
-	while ((ioread32(FlashReg + DMA_ENABLE) & DMA_ENABLE__FLAG))
-		;
-
-	return status;
-}
-
-
-u16 NAND_Write_Page_Main(u8 *write_data, u32 block, u16 page,
-			    u16 page_count)
-{
-	u32 status = PASS;
-	u64 flash_add;
-	u32 intr_status = 0;
-	u32 flash_bank;
-	u32 intr_status_addresses[4] = {INTR_STATUS0,
-		INTR_STATUS1, INTR_STATUS2, INTR_STATUS3};
-	int ret;
-	u8 *write_data_l;
-
-	nand_dbg_print(NAND_DBG_DEBUG, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	status = Boundary_Check_Block_Page(block, page, page_count);
-	if (status != PASS)
-		return status;
-
-	flash_add = (u64)(block % (DeviceInfo.wTotalBlocks / totalUsedBanks))
-		* DeviceInfo.wBlockDataSize +
-		(u64)page * DeviceInfo.wPageDataSize;
-
-	flash_bank = block / (DeviceInfo.wTotalBlocks / totalUsedBanks);
-
-	intr_status = intr_status_addresses[flash_bank];
-
-	iowrite32(0, FlashReg + TRANSFER_SPARE_REG);
-
-	iowrite32(INTR_STATUS0__PROGRAM_COMP |
-		INTR_STATUS0__PROGRAM_FAIL, FlashReg + intr_status);
-
-	if (page_count > 1) {
-		write_data_l = write_data;
-		while (page_count > MAX_PAGES_PER_RW) {
-			if (ioread32(FlashReg + MULTIPLANE_OPERATION))
-				status = NAND_Multiplane_Write(write_data_l,
-					block, page, MAX_PAGES_PER_RW);
-			else
-				status = NAND_Pipeline_Write_Ahead(
-					write_data_l, block, page,
-					MAX_PAGES_PER_RW);
-			if (status == FAIL)
-				return status;
-
-			write_data_l += DeviceInfo.wPageDataSize *
-					MAX_PAGES_PER_RW;
-			page_count -= MAX_PAGES_PER_RW;
-			page += MAX_PAGES_PER_RW;
-		}
-		if (ioread32(FlashReg + MULTIPLANE_OPERATION))
-			status = NAND_Multiplane_Write(write_data_l,
-				block, page, page_count);
-		else
-			status = NAND_Pipeline_Write_Ahead(write_data_l,
-				block, page, page_count);
-
-		return status;
-	}
-
-	iowrite32(1, FlashReg + DMA_ENABLE);
-	while (!(ioread32(FlashReg + DMA_ENABLE) & DMA_ENABLE__FLAG))
-		;
-
-	iowrite32(0, FlashReg + TRANSFER_SPARE_REG);
-
-	iowrite32(ioread32(FlashReg + intr_status), FlashReg + intr_status);
-
-	/* Fill the mrst_nand_info structure */
-	info.state = INT_WRITE_PAGE_MAIN;
-	info.write_data = write_data;
-	info.flash_bank = flash_bank;
-	info.block = block;
-	info.page = page;
-	info.ret = PASS;
-
-	ddma_trans(write_data, flash_add, flash_bank, 1, 1);
-
-	iowrite32(1, FlashReg + GLOBAL_INT_ENABLE); /* Enable interrupt */
-
-	ret = wait_for_completion_timeout(&info.complete, 10 * HZ);
-	if (!ret) {
-		printk(KERN_ERR "Wait for completion timeout "
-			"in %s, Line %d\n", __FILE__, __LINE__);
-		status = ERR;
-	} else {
-		status = info.ret;
-	}
-
-	iowrite32(ioread32(FlashReg + intr_status), FlashReg + intr_status);
-
-	iowrite32(0, FlashReg + DMA_ENABLE);
-	while (ioread32(FlashReg + DMA_ENABLE) & DMA_ENABLE__FLAG)
-		;
-
-	return status;
-}
-
-void NAND_ECC_Ctrl(int enable)
-{
-	if (enable) {
-		nand_dbg_print(NAND_DBG_WARN,
-			"Will enable ECC in %s, Line %d, Function: %s\n",
-			__FILE__, __LINE__, __func__);
-		iowrite32(1, FlashReg + ECC_ENABLE);
-		enable_ecc = 1;
-	} else {
-		nand_dbg_print(NAND_DBG_WARN,
-			"Will disable ECC in %s, Line %d, Function: %s\n",
-			__FILE__, __LINE__, __func__);
-		iowrite32(0, FlashReg + ECC_ENABLE);
-		enable_ecc = 0;
-	}
-}
-
-u16 NAND_Write_Page_Main_Spare(u8 *write_data, u32 block,
-					u16 page, u16 page_count)
-{
-	u32 status = PASS;
-	u32 i, j, page_num = 0;
-	u32 PageSize = DeviceInfo.wPageSize;
-	u32 PageDataSize = DeviceInfo.wPageDataSize;
-	u32 eccBytes = DeviceInfo.wECCBytesPerSector;
-	u32 spareFlagBytes = DeviceInfo.wNumPageSpareFlag;
-	u32 spareSkipBytes  = DeviceInfo.wSpareSkipBytes;
-	u64 flash_add;
-	u32 eccSectorSize;
-	u32 flash_bank;
-	u32 intr_status = 0;
-	u32 intr_status_addresses[4] = {INTR_STATUS0,
-		INTR_STATUS1, INTR_STATUS2, INTR_STATUS3};
-	u8 *page_main_spare = buf_write_page_main_spare;
-
-	nand_dbg_print(NAND_DBG_WARN, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	eccSectorSize = ECC_SECTOR_SIZE * (DeviceInfo.wDevicesConnected);
-
-	status = Boundary_Check_Block_Page(block, page, page_count);
-
-	flash_bank = block / (DeviceInfo.wTotalBlocks / totalUsedBanks);
-
-	if (status == PASS) {
-		intr_status = intr_status_addresses[flash_bank];
-
-		iowrite32(1, FlashReg + TRANSFER_SPARE_REG);
-
-		while ((status != FAIL) && (page_count > 0)) {
-			flash_add = (u64)(block %
-			(DeviceInfo.wTotalBlocks / totalUsedBanks)) *
-			DeviceInfo.wBlockDataSize +
-			(u64)page * DeviceInfo.wPageDataSize;
-
-			iowrite32(ioread32(FlashReg + intr_status),
-				FlashReg + intr_status);
-
-			iowrite32((u32)(MODE_01 | (flash_bank << 24) |
-				(flash_add >>
-				DeviceInfo.nBitsInPageDataSize)),
-				FlashMem);
-
-			if (enable_ecc) {
-				for (j = 0;
-				     j <
-				     DeviceInfo.wPageDataSize / eccSectorSize;
-				     j++) {
-					for (i = 0; i < eccSectorSize; i++)
-						page_main_spare[(eccSectorSize +
-								 eccBytes) * j +
-								i] =
-						    write_data[eccSectorSize *
-							       j + i];
-
-					for (i = 0; i < eccBytes; i++)
-						page_main_spare[(eccSectorSize +
-								 eccBytes) * j +
-								eccSectorSize +
-								i] =
-						    write_data[PageDataSize +
-							       spareFlagBytes +
-							       eccBytes * j +
-							       i];
-				}
-
-				for (i = 0; i < spareFlagBytes; i++)
-					page_main_spare[(eccSectorSize +
-							 eccBytes) * j + i] =
-					    write_data[PageDataSize + i];
-
-				for (i = PageSize - 1; i >= PageDataSize +
-							spareSkipBytes; i--)
-					page_main_spare[i] = page_main_spare[i -
-								spareSkipBytes];
-
-				for (i = PageDataSize; i < PageDataSize +
-							spareSkipBytes; i++)
-					page_main_spare[i] = 0xff;
-
-				for (i = 0; i < PageSize / 4; i++)
-					iowrite32(
-					*((u32 *)page_main_spare + i),
-					FlashMem + 0x10);
-			} else {
-
-				for (i = 0; i < PageSize / 4; i++)
-					iowrite32(*((u32 *)write_data + i),
-						FlashMem + 0x10);
-			}
-
-			while (!(ioread32(FlashReg + intr_status) &
-				(INTR_STATUS0__PROGRAM_COMP |
-				INTR_STATUS0__PROGRAM_FAIL)))
-				;
-
-			if (ioread32(FlashReg + intr_status) &
-				INTR_STATUS0__PROGRAM_FAIL)
-				status = FAIL;
-
-			iowrite32(ioread32(FlashReg + intr_status),
-					FlashReg + intr_status);
-
-			page_num++;
-			page_count--;
-			write_data += PageSize;
-		}
-
-		iowrite32(0, FlashReg + TRANSFER_SPARE_REG);
-	}
-
-	return status;
-}
-
-u16 NAND_Read_Page_Main_Spare(u8 *read_data, u32 block, u16 page,
-				 u16 page_count)
-{
-	u32 status = PASS;
-	u32 i, j;
-	u64 flash_add = 0;
-	u32 PageSize = DeviceInfo.wPageSize;
-	u32 PageDataSize = DeviceInfo.wPageDataSize;
-	u32 PageSpareSize = DeviceInfo.wPageSpareSize;
-	u32 eccBytes = DeviceInfo.wECCBytesPerSector;
-	u32 spareFlagBytes = DeviceInfo.wNumPageSpareFlag;
-	u32 spareSkipBytes  = DeviceInfo.wSpareSkipBytes;
-	u32 eccSectorSize;
-	u32 flash_bank;
-	u32 intr_status = 0;
-	u8 *read_data_l = read_data;
-	u32 intr_status_addresses[4] = {INTR_STATUS0,
-		INTR_STATUS1, INTR_STATUS2, INTR_STATUS3};
-	u8 *page_main_spare = buf_read_page_main_spare;
-
-	nand_dbg_print(NAND_DBG_WARN, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	eccSectorSize = ECC_SECTOR_SIZE * (DeviceInfo.wDevicesConnected);
-
-	status = Boundary_Check_Block_Page(block, page, page_count);
-
-	flash_bank = block / (DeviceInfo.wTotalBlocks / totalUsedBanks);
-
-	if (status == PASS) {
-		intr_status = intr_status_addresses[flash_bank];
-
-		iowrite32(1, FlashReg + TRANSFER_SPARE_REG);
-
-		iowrite32(ioread32(FlashReg + intr_status),
-				FlashReg + intr_status);
-
-		while ((status != FAIL) && (page_count > 0)) {
-			flash_add = (u64)(block %
-				(DeviceInfo.wTotalBlocks / totalUsedBanks))
-				* DeviceInfo.wBlockDataSize +
-				(u64)page * DeviceInfo.wPageDataSize;
-
-			index_addr((u32)(MODE_10 | (flash_bank << 24) |
-				(flash_add >> DeviceInfo.nBitsInPageDataSize)),
-				0x43);
-			index_addr((u32)(MODE_10 | (flash_bank << 24) |
-				(flash_add >> DeviceInfo.nBitsInPageDataSize)),
-				0x2000 | page_count);
-
-			while (!(ioread32(FlashReg + intr_status) &
-				INTR_STATUS0__LOAD_COMP))
-				;
-
-			iowrite32((u32)(MODE_01 | (flash_bank << 24) |
-				(flash_add >>
-				DeviceInfo.nBitsInPageDataSize)),
-				FlashMem);
-
-			for (i = 0; i < PageSize / 4; i++)
-				*(((u32 *)page_main_spare) + i) =
-					ioread32(FlashMem + 0x10);
-
-			if (enable_ecc) {
-				for (i = PageDataSize;  i < PageSize -
-							spareSkipBytes; i++)
-					page_main_spare[i] = page_main_spare[i +
-								spareSkipBytes];
-
-				for (j = 0;
-				j < DeviceInfo.wPageDataSize / eccSectorSize;
-				j++) {
-
-					for (i = 0; i < eccSectorSize; i++)
-						read_data_l[eccSectorSize * j +
-							    i] =
-						    page_main_spare[
-							(eccSectorSize +
-							eccBytes) * j + i];
-
-					for (i = 0; i < eccBytes; i++)
-						read_data_l[PageDataSize +
-							    spareFlagBytes +
-							    eccBytes * j + i] =
-						    page_main_spare[
-							(eccSectorSize +
-							eccBytes) * j +
-							eccSectorSize + i];
-				}
-
-				for (i = 0; i < spareFlagBytes; i++)
-					read_data_l[PageDataSize + i] =
-					    page_main_spare[(eccSectorSize +
-							     eccBytes) * j + i];
-			} else {
-				for (i = 0; i < (PageDataSize + PageSpareSize);
-				     i++)
-					read_data_l[i] = page_main_spare[i];
-
-			}
-
-			if (enable_ecc) {
-				while (!(ioread32(FlashReg + intr_status) &
-					(INTR_STATUS0__ECC_TRANSACTION_DONE |
-					INTR_STATUS0__ECC_ERR)))
-					;
-
-				if (ioread32(FlashReg + intr_status) &
-					INTR_STATUS0__ECC_ERR) {
-					iowrite32(INTR_STATUS0__ECC_ERR,
-						FlashReg + intr_status);
-					status = do_ecc_new(flash_bank,
-						read_data, block, page);
-				}
-
-				if (ioread32(FlashReg + intr_status) &
-					INTR_STATUS0__ECC_TRANSACTION_DONE &
-					INTR_STATUS0__ECC_ERR) {
-					iowrite32(INTR_STATUS0__ECC_ERR |
-					INTR_STATUS0__ECC_TRANSACTION_DONE,
-					FlashReg + intr_status);
-				} else if (ioread32(FlashReg + intr_status) &
-					INTR_STATUS0__ECC_TRANSACTION_DONE) {
-					iowrite32(
-					INTR_STATUS0__ECC_TRANSACTION_DONE,
-					FlashReg + intr_status);
-				} else if (ioread32(FlashReg + intr_status) &
-					INTR_STATUS0__ECC_ERR) {
-					iowrite32(INTR_STATUS0__ECC_ERR,
-						FlashReg + intr_status);
-				}
-			}
-
-			page++;
-			page_count--;
-			read_data_l += PageSize;
-		}
-	}
-
-	iowrite32(0, FlashReg + TRANSFER_SPARE_REG);
-
-	index_addr((u32)(MODE_10 | (flash_bank << 24) |
-		(flash_add >> DeviceInfo.nBitsInPageDataSize)), 0x42);
-
-	return status;
-}
-
-u16 NAND_Pipeline_Write_Ahead(u8 *write_data, u32 block,
-			u16 page, u16 page_count)
-{
-	u16 status = PASS;
-	u32 NumPages = page_count;
-	u64 flash_add;
-	u32 flash_bank;
-	u32 intr_status = 0;
-	u32 intr_status_addresses[4] = {INTR_STATUS0,
-		INTR_STATUS1, INTR_STATUS2, INTR_STATUS3};
-	int ret;
-
-	nand_dbg_print(NAND_DBG_DEBUG, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	status = Boundary_Check_Block_Page(block, page, page_count);
-
-	if (page_count < 2)
-		status = FAIL;
-
-	if (status != PASS)
-		return status;
-
-	flash_add = (u64)(block % (DeviceInfo.wTotalBlocks / totalUsedBanks))
-		* DeviceInfo.wBlockDataSize +
-		(u64)page * DeviceInfo.wPageDataSize;
-
-	flash_bank = block / (DeviceInfo.wTotalBlocks / totalUsedBanks);
-
-	intr_status = intr_status_addresses[flash_bank];
-	iowrite32(ioread32(FlashReg + intr_status), FlashReg + intr_status);
-
-	iowrite32(1, FlashReg + DMA_ENABLE);
-	while (!(ioread32(FlashReg + DMA_ENABLE) & DMA_ENABLE__FLAG))
-		;
-
-	iowrite32(0, FlashReg + TRANSFER_SPARE_REG);
-
-	/* Fill the mrst_nand_info structure */
-	info.state = INT_PIPELINE_WRITE_AHEAD;
-	info.write_data = write_data;
-	info.flash_bank = flash_bank;
-	info.block = block;
-	info.page = page;
-	info.ret = PASS;
-
-	index_addr((u32)(MODE_10 | (flash_bank << 24) |
-		(flash_add >> DeviceInfo.nBitsInPageDataSize)), 0x42);
-
-	ddma_trans(write_data, flash_add, flash_bank, 1, NumPages);
-
-	iowrite32(1, FlashReg + GLOBAL_INT_ENABLE); /* Enable interrupt */
-
-	ret = wait_for_completion_timeout(&info.complete, 10 * HZ);
-	if (!ret) {
-		printk(KERN_ERR "Wait for completion timeout "
-			"in %s, Line %d\n", __FILE__, __LINE__);
-		status = ERR;
-	} else {
-		status = info.ret;
-	}
-
-	iowrite32(ioread32(FlashReg + intr_status), FlashReg + intr_status);
-
-	iowrite32(0, FlashReg + DMA_ENABLE);
-	while ((ioread32(FlashReg + DMA_ENABLE) & DMA_ENABLE__FLAG))
-		;
-
-	return status;
-}
-
-/* Un-tested function */
-u16 NAND_Multiplane_Write(u8 *write_data, u32 block, u16 page,
-			     u16 page_count)
-{
-	u16 status = PASS;
-	u32 NumPages = page_count;
-	u64 flash_add;
-	u32 flash_bank;
-	u32 intr_status = 0;
-	u32 intr_status_addresses[4] = {INTR_STATUS0,
-		INTR_STATUS1, INTR_STATUS2, INTR_STATUS3};
-	u16 status2 = PASS;
-	u32 t;
-
-	nand_dbg_print(NAND_DBG_WARN, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	status = Boundary_Check_Block_Page(block, page, page_count);
-	if (status != PASS)
-		return status;
-
-	flash_add = (u64)(block % (DeviceInfo.wTotalBlocks / totalUsedBanks))
-		* DeviceInfo.wBlockDataSize +
-		(u64)page * DeviceInfo.wPageDataSize;
-
-	flash_bank = block / (DeviceInfo.wTotalBlocks / totalUsedBanks);
-
-	intr_status = intr_status_addresses[flash_bank];
-	iowrite32(ioread32(FlashReg + intr_status), FlashReg + intr_status);
-
-	iowrite32(0, FlashReg + TRANSFER_SPARE_REG);
-	iowrite32(0x01, FlashReg + MULTIPLANE_OPERATION);
-
-	iowrite32(1, FlashReg + DMA_ENABLE);
-	while (!(ioread32(FlashReg + DMA_ENABLE) & DMA_ENABLE__FLAG))
-		;
-
-	iowrite32(0, FlashReg + TRANSFER_SPARE_REG);
-
-	index_addr((u32)(MODE_10 | (flash_bank << 24) |
-		(flash_add >> DeviceInfo.nBitsInPageDataSize)), 0x42);
-
-	ddma_trans(write_data, flash_add, flash_bank, 1, NumPages);
-
-	while (1) {
-		while (!ioread32(FlashReg + intr_status))
-			;
-
-		if (ioread32(FlashReg + intr_status) &
-			INTR_STATUS0__DMA_CMD_COMP) {
-			iowrite32(INTR_STATUS0__DMA_CMD_COMP,
-				FlashReg + intr_status);
-			status = PASS;
-			if (status2 == FAIL)
-				status = FAIL;
-			break;
-		} else if (ioread32(FlashReg + intr_status) &
-				INTR_STATUS0__PROGRAM_FAIL) {
-			status2 = FAIL;
-			status = FAIL;
-			t = ioread32(FlashReg + intr_status) &
-				INTR_STATUS0__PROGRAM_FAIL;
-			iowrite32(t, FlashReg + intr_status);
-		} else {
-			iowrite32((~INTR_STATUS0__PROGRAM_FAIL) &
-				(~INTR_STATUS0__DMA_CMD_COMP),
-				FlashReg + intr_status);
-		}
-	}
-
-	iowrite32(ioread32(FlashReg + intr_status), FlashReg + intr_status);
-
-	iowrite32(0, FlashReg + DMA_ENABLE);
-
-	while ((ioread32(FlashReg + DMA_ENABLE) & DMA_ENABLE__FLAG))
-		;
-
-	iowrite32(0, FlashReg + MULTIPLANE_OPERATION);
-
-	return status;
-}
-
-
-#if CMD_DMA
-static irqreturn_t cdma_isr(int irq, void *dev_id)
-{
-	struct mrst_nand_info *dev = dev_id;
-	int first_failed_cmd;
-
-	nand_dbg_print(NAND_DBG_DEBUG, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	if (!is_cdma_interrupt())
-		return IRQ_NONE;
-
-	/* Disable controller interrupts */
-	iowrite32(0, FlashReg + GLOBAL_INT_ENABLE);
-	GLOB_FTL_Event_Status(&first_failed_cmd);
-	complete(&dev->complete);
-
-	return IRQ_HANDLED;
-}
-#else
-static void handle_nand_int_read(struct mrst_nand_info *dev)
-{
-	u32 intr_status_addresses[4] = {INTR_STATUS0,
-		INTR_STATUS1, INTR_STATUS2, INTR_STATUS3};
-	u32 intr_status;
-	u32 ecc_done_OR_dma_comp = 0;
-
-	nand_dbg_print(NAND_DBG_DEBUG, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	dev->ret = PASS;
-	intr_status = intr_status_addresses[dev->flash_bank];
-
-	while (1) {
-		if (enable_ecc) {
-			if (ioread32(FlashReg + intr_status) &
-				INTR_STATUS0__ECC_ERR) {
-				iowrite32(INTR_STATUS0__ECC_ERR,
-					FlashReg + intr_status);
-				dev->ret = do_ecc_new(dev->flash_bank,
-						dev->read_data,
-						dev->block, dev->page);
-			} else if (ioread32(FlashReg + intr_status) &
-				INTR_STATUS0__DMA_CMD_COMP) {
-				iowrite32(INTR_STATUS0__DMA_CMD_COMP,
-					FlashReg + intr_status);
-				if (1 == ecc_done_OR_dma_comp)
-					break;
-				ecc_done_OR_dma_comp = 1;
-			} else if (ioread32(FlashReg + intr_status) &
-				INTR_STATUS0__ECC_TRANSACTION_DONE) {
-				iowrite32(INTR_STATUS0__ECC_TRANSACTION_DONE,
-					FlashReg + intr_status);
-				if (1 == ecc_done_OR_dma_comp)
-					break;
-				ecc_done_OR_dma_comp = 1;
-			}
-		} else {
-			if (ioread32(FlashReg + intr_status) &
-				INTR_STATUS0__DMA_CMD_COMP) {
-				iowrite32(INTR_STATUS0__DMA_CMD_COMP,
-					FlashReg + intr_status);
-				break;
-			} else {
-				printk(KERN_ERR "Illegal INTS "
-					"(offset addr 0x%x) value: 0x%x\n",
-					intr_status,
-					ioread32(FlashReg + intr_status));
-			}
-		}
-
-		iowrite32((~INTR_STATUS0__ECC_ERR) &
-		(~INTR_STATUS0__ECC_TRANSACTION_DONE) &
-		(~INTR_STATUS0__DMA_CMD_COMP),
-		FlashReg + intr_status);
-	}
-}
-
-static void handle_nand_int_write(struct mrst_nand_info *dev)
-{
-	u32 intr_status;
-	u32 intr[4] = {INTR_STATUS0, INTR_STATUS1,
-		INTR_STATUS2, INTR_STATUS3};
-	int status = PASS;
-
-	nand_dbg_print(NAND_DBG_DEBUG, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	dev->ret = PASS;
-	intr_status = intr[dev->flash_bank];
-
-	while (1) {
-		while (!ioread32(FlashReg + intr_status))
-			;
-
-		if (ioread32(FlashReg + intr_status) &
-			INTR_STATUS0__DMA_CMD_COMP) {
-			iowrite32(INTR_STATUS0__DMA_CMD_COMP,
-				FlashReg + intr_status);
-			if (FAIL == status)
-				dev->ret = FAIL;
-			break;
-		} else if (ioread32(FlashReg + intr_status) &
-			INTR_STATUS0__PROGRAM_FAIL) {
-			status = FAIL;
-			iowrite32(INTR_STATUS0__PROGRAM_FAIL,
-				FlashReg + intr_status);
-		} else {
-			iowrite32((~INTR_STATUS0__PROGRAM_FAIL) &
-				(~INTR_STATUS0__DMA_CMD_COMP),
-				FlashReg + intr_status);
-		}
-	}
-}
-
-static irqreturn_t ddma_isr(int irq, void *dev_id)
-{
-	struct mrst_nand_info *dev = dev_id;
-	u32 int_mask, ints0, ints1, ints2, ints3, ints_offset;
-	u32 intr[4] = {INTR_STATUS0, INTR_STATUS1,
-		INTR_STATUS2, INTR_STATUS3};
-
-	int_mask = INTR_STATUS0__DMA_CMD_COMP |
-		INTR_STATUS0__ECC_TRANSACTION_DONE |
-		INTR_STATUS0__ECC_ERR |
-		INTR_STATUS0__PROGRAM_FAIL |
-		INTR_STATUS0__ERASE_FAIL;
-
-	ints0 = ioread32(FlashReg + INTR_STATUS0);
-	ints1 = ioread32(FlashReg + INTR_STATUS1);
-	ints2 = ioread32(FlashReg + INTR_STATUS2);
-	ints3 = ioread32(FlashReg + INTR_STATUS3);
-
-	ints_offset = intr[dev->flash_bank];
-
-	nand_dbg_print(NAND_DBG_DEBUG,
-		"INTR0: 0x%x, INTR1: 0x%x, INTR2: 0x%x, INTR3: 0x%x, "
-		"DMA_INTR: 0x%x, "
-		"dev->state: 0x%x, dev->flash_bank: %d\n",
-		ints0, ints1, ints2, ints3,
-		ioread32(FlashReg + DMA_INTR),
-		dev->state, dev->flash_bank);
-
-	if (!(ioread32(FlashReg + ints_offset) & int_mask)) {
-		iowrite32(ints0, FlashReg + INTR_STATUS0);
-		iowrite32(ints1, FlashReg + INTR_STATUS1);
-		iowrite32(ints2, FlashReg + INTR_STATUS2);
-		iowrite32(ints3, FlashReg + INTR_STATUS3);
-		nand_dbg_print(NAND_DBG_WARN,
-			"ddma_isr: Invalid interrupt for NAND controller. "
-			"Ignore it\n");
-		return IRQ_NONE;
-	}
-
-	switch (dev->state) {
-	case INT_READ_PAGE_MAIN:
-	case INT_PIPELINE_READ_AHEAD:
-		/* Disable controller interrupts */
-		iowrite32(0, FlashReg + GLOBAL_INT_ENABLE);
-		handle_nand_int_read(dev);
-		break;
-	case INT_WRITE_PAGE_MAIN:
-	case INT_PIPELINE_WRITE_AHEAD:
-		iowrite32(0, FlashReg + GLOBAL_INT_ENABLE);
-		handle_nand_int_write(dev);
-		break;
-	default:
-		printk(KERN_ERR "ddma_isr - Illegal state: 0x%x\n",
-			dev->state);
-		return IRQ_NONE;
-	}
-
-	dev->state = INT_IDLE_STATE;
-	complete(&dev->complete);
-	return IRQ_HANDLED;
-}
-#endif
-
-static const struct pci_device_id nand_pci_ids[] = {
-	{
-	 .vendor = 0x8086,
-	 .device = 0x0809,
-	 .subvendor = PCI_ANY_ID,
-	 .subdevice = PCI_ANY_ID,
-	 },
-	{ /* end: all zeroes */ }
-};
-
-static int nand_pci_probe(struct pci_dev *dev, const struct pci_device_id *id)
-{
-	int ret = -ENODEV;
-	unsigned long csr_base;
-	unsigned long csr_len;
-	struct mrst_nand_info *pndev = &info;
-	u32 int_mask;
-
-	ret = pci_enable_device(dev);
-	if (ret) {
-		printk(KERN_ERR "Spectra: pci_enable_device failed.\n");
-		return ret;
-	}
-
-	nand_dbg_print(NAND_DBG_WARN, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	FlashReg = ioremap_nocache(GLOB_HWCTL_REG_BASE,
-			GLOB_HWCTL_REG_SIZE);
-	if (!FlashReg) {
-		printk(KERN_ERR "Spectra: ioremap_nocache failed!");
-		goto failed_disable;
-	}
-	nand_dbg_print(NAND_DBG_WARN,
-		"Spectra: Remapped reg base address: "
-		"0x%p, len: %d\n",
-		FlashReg, GLOB_HWCTL_REG_SIZE);
-
-	FlashMem = ioremap_nocache(GLOB_HWCTL_MEM_BASE,
-			GLOB_HWCTL_MEM_SIZE);
-	if (!FlashMem) {
-		printk(KERN_ERR "Spectra: ioremap_nocache failed!");
-		iounmap(FlashReg);
-		goto failed_disable;
-	}
-	nand_dbg_print(NAND_DBG_WARN,
-		"Spectra: Remapped flash base address: "
-		"0x%p, len: %d\n",
-		(void *)FlashMem, GLOB_HWCTL_MEM_SIZE);
-
-	nand_dbg_print(NAND_DBG_DEBUG, "Dump timing register values:"
-			"acc_clks: %d, re_2_we: %d, we_2_re: %d,"
-			"addr_2_data: %d, rdwr_en_lo_cnt: %d, "
-			"rdwr_en_hi_cnt: %d, cs_setup_cnt: %d\n",
-			ioread32(FlashReg + ACC_CLKS),
-			ioread32(FlashReg + RE_2_WE),
-			ioread32(FlashReg + WE_2_RE),
-			ioread32(FlashReg + ADDR_2_DATA),
-			ioread32(FlashReg + RDWR_EN_LO_CNT),
-			ioread32(FlashReg + RDWR_EN_HI_CNT),
-			ioread32(FlashReg + CS_SETUP_CNT));
-
-	NAND_Flash_Reset();
-
-	iowrite32(0, FlashReg + GLOBAL_INT_ENABLE);
-
-#if CMD_DMA
-	info.pcmds_num = 0;
-	info.flash_bank = 0;
-	info.cdma_num = 0;
-	int_mask = (DMA_INTR__DESC_COMP_CHANNEL0 |
-		DMA_INTR__DESC_COMP_CHANNEL1 |
-		DMA_INTR__DESC_COMP_CHANNEL2 |
-		DMA_INTR__DESC_COMP_CHANNEL3 |
-		DMA_INTR__MEMCOPY_DESC_COMP);
-	iowrite32(int_mask, FlashReg + DMA_INTR_EN);
-	iowrite32(0xFFFF, FlashReg + DMA_INTR);
-
-	int_mask = (INTR_STATUS0__ECC_ERR |
-		INTR_STATUS0__PROGRAM_FAIL |
-		INTR_STATUS0__ERASE_FAIL);
-#else
-	int_mask = INTR_STATUS0__DMA_CMD_COMP |
-		INTR_STATUS0__ECC_TRANSACTION_DONE |
-		INTR_STATUS0__ECC_ERR |
-		INTR_STATUS0__PROGRAM_FAIL |
-		INTR_STATUS0__ERASE_FAIL;
-#endif
-	iowrite32(int_mask, FlashReg + INTR_EN0);
-	iowrite32(int_mask, FlashReg + INTR_EN1);
-	iowrite32(int_mask, FlashReg + INTR_EN2);
-	iowrite32(int_mask, FlashReg + INTR_EN3);
-
-	/* Clear all status bits */
-	iowrite32(0xFFFF, FlashReg + INTR_STATUS0);
-	iowrite32(0xFFFF, FlashReg + INTR_STATUS1);
-	iowrite32(0xFFFF, FlashReg + INTR_STATUS2);
-	iowrite32(0xFFFF, FlashReg + INTR_STATUS3);
-
-	iowrite32(0x0F, FlashReg + RB_PIN_ENABLED);
-	iowrite32(CHIP_EN_DONT_CARE__FLAG, FlashReg + CHIP_ENABLE_DONT_CARE);
-
-	/* Should set value for these registers when init */
-	iowrite32(0, FlashReg + TWO_ROW_ADDR_CYCLES);
-	iowrite32(1, FlashReg + ECC_ENABLE);
-	enable_ecc = 1;
-
-	pci_set_master(dev);
-	pndev->dev = dev;
-
-	csr_base = pci_resource_start(dev, 0);
-	if (!csr_base) {
-		printk(KERN_ERR "Spectra: pci_resource_start failed!\n");
-		ret = -ENODEV;
-		goto failed_req_csr;
-	}
-
-	csr_len = pci_resource_len(dev, 0);
-	if (!csr_len) {
-		printk(KERN_ERR "Spectra: pci_resource_len failed!\n");
-		ret = -ENODEV;
-		goto failed_req_csr;
-	}
-
-	ret = pci_request_regions(dev, SPECTRA_NAND_NAME);
-	if (ret) {
-		printk(KERN_ERR "Spectra: Unable to request "
-		       "memory region\n");
-		goto failed_req_csr;
-	}
-
-	pndev->ioaddr = ioremap_nocache(csr_base, csr_len);
-	if (!pndev->ioaddr) {
-		printk(KERN_ERR "Spectra: Unable to remap memory region\n");
-		ret = -ENOMEM;
-		goto failed_remap_csr;
-	}
-	nand_dbg_print(NAND_DBG_DEBUG, "Spectra: CSR 0x%08lx -> 0x%p (0x%lx)\n",
-		       csr_base, pndev->ioaddr, csr_len);
-
-	init_completion(&pndev->complete);
-	nand_dbg_print(NAND_DBG_DEBUG, "Spectra: IRQ %d\n", dev->irq);
-
-#if CMD_DMA
-	if (request_irq(dev->irq, cdma_isr, IRQF_SHARED,
-			SPECTRA_NAND_NAME, &info)) {
-		printk(KERN_ERR "Spectra: Unable to allocate IRQ\n");
-		ret = -ENODEV;
-		iounmap(pndev->ioaddr);
-		goto failed_remap_csr;
-	}
-#else
-	if (request_irq(dev->irq, ddma_isr, IRQF_SHARED,
-			SPECTRA_NAND_NAME, &info)) {
-		printk(KERN_ERR "Spectra: Unable to allocate IRQ\n");
-		ret = -ENODEV;
-		iounmap(pndev->ioaddr);
-		goto failed_remap_csr;
-	}
-#endif
-
-	pci_set_drvdata(dev, pndev);
-
-	ret = GLOB_LLD_Read_Device_ID();
-	if (ret) {
-		iounmap(pndev->ioaddr);
-		goto failed_remap_csr;
-	}
-
-	ret = register_spectra_ftl();
-	if (ret) {
-		iounmap(pndev->ioaddr);
-		goto failed_remap_csr;
-	}
-
-	return 0;
-
-failed_remap_csr:
-	pci_release_regions(dev);
-failed_req_csr:
-	iounmap(FlashMem);
-	iounmap(FlashReg);
-failed_disable:
-	pci_disable_device(dev);
-
-	return ret;
-}
-
-static void nand_pci_remove(struct pci_dev *dev)
-{
-	struct mrst_nand_info *pndev = pci_get_drvdata(dev);
-
-	nand_dbg_print(NAND_DBG_WARN, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-#if CMD_DMA
-	free_irq(dev->irq, pndev);
-#endif
-	iounmap(pndev->ioaddr);
-	pci_release_regions(dev);
-	pci_disable_device(dev);
-}
-
-MODULE_DEVICE_TABLE(pci, nand_pci_ids);
-
-static struct pci_driver nand_pci_driver = {
-	.name = SPECTRA_NAND_NAME,
-	.id_table = nand_pci_ids,
-	.probe = nand_pci_probe,
-	.remove = nand_pci_remove,
-};
-
-int NAND_Flash_Init(void)
-{
-	int retval;
-
-	nand_dbg_print(NAND_DBG_TRACE, "%s, Line %d, Function: %s\n",
-		       __FILE__, __LINE__, __func__);
-
-	retval = pci_register_driver(&nand_pci_driver);
-	if (retval)
-		return -ENOMEM;
-
-	return PASS;
-}
-
-/* Free memory */
-int nand_release_spectra(void)
-{
-	pci_unregister_driver(&nand_pci_driver);
-	iounmap(FlashMem);
-	iounmap(FlashReg);
-
-	return 0;
-}
-
-
-
diff --git a/drivers/staging/spectra/lld_nand.h b/drivers/staging/spectra/lld_nand.h
deleted file mode 100644
index d08388287da8..000000000000
--- a/drivers/staging/spectra/lld_nand.h
+++ /dev/null
@@ -1,131 +0,0 @@
-/*
- * NAND Flash Controller Device Driver
- * Copyright (c) 2009, Intel Corporation and its suppliers.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- */
-
-#ifndef _LLD_NAND_
-#define _LLD_NAND_
-
-#ifdef ELDORA
-#include "defs.h"
-#else
-#include "flash.h"
-#include "ffsport.h"
-#endif
-
-#define MODE_00    0x00000000
-#define MODE_01    0x04000000
-#define MODE_10    0x08000000
-#define MODE_11    0x0C000000
-
-
-#define DATA_TRANSFER_MODE              0
-#define PROTECTION_PER_BLOCK            1
-#define LOAD_WAIT_COUNT                 2
-#define PROGRAM_WAIT_COUNT              3
-#define ERASE_WAIT_COUNT                4
-#define INT_MONITOR_CYCLE_COUNT         5
-#define READ_BUSY_PIN_ENABLED           6
-#define MULTIPLANE_OPERATION_SUPPORT    7
-#define PRE_FETCH_MODE                  8
-#define CE_DONT_CARE_SUPPORT            9
-#define COPYBACK_SUPPORT                10
-#define CACHE_WRITE_SUPPORT             11
-#define CACHE_READ_SUPPORT              12
-#define NUM_PAGES_IN_BLOCK              13
-#define ECC_ENABLE_SELECT               14
-#define WRITE_ENABLE_2_READ_ENABLE      15
-#define ADDRESS_2_DATA                  16
-#define READ_ENABLE_2_WRITE_ENABLE      17
-#define TWO_ROW_ADDRESS_CYCLES          18
-#define MULTIPLANE_ADDRESS_RESTRICT     19
-#define ACC_CLOCKS                      20
-#define READ_WRITE_ENABLE_LOW_COUNT     21
-#define READ_WRITE_ENABLE_HIGH_COUNT    22
-
-#define ECC_SECTOR_SIZE     512
-#define LLD_MAX_FLASH_BANKS     4
-
-struct mrst_nand_info {
-	struct pci_dev *dev;
-	u32 state;
-	u32 flash_bank;
-	u8 *read_data;
-	u8 *write_data;
-	u32 block;
-	u16 page;
-	u32 use_dma;
-	void __iomem *ioaddr;  /* Mapped io reg base address */
-	int ret;
-	u32 pcmds_num;
-	struct pending_cmd *pcmds;
-	int cdma_num;           /* CDMA descriptor number in this chan */
-	u8 *cdma_desc_buf;	/* CDMA descriptor table */
-	u8 *memcp_desc_buf;	/* Memory copy descriptor table */
-	dma_addr_t cdma_desc;	/* Mapped CDMA descriptor table */
-	dma_addr_t memcp_desc;	/* Mapped memory copy descriptor table */
-	struct completion complete;
-};
-
-int NAND_Flash_Init(void);
-int nand_release_spectra(void);
-u16  NAND_Flash_Reset(void);
-u16  NAND_Read_Device_ID(void);
-u16  NAND_Erase_Block(u32 flash_add);
-u16  NAND_Write_Page_Main(u8 *write_data, u32 block, u16 page,
-				u16 page_count);
-u16  NAND_Read_Page_Main(u8 *read_data, u32 block, u16 page,
-				u16 page_count);
-u16  NAND_UnlockArrayAll(void);
-u16  NAND_Write_Page_Main_Spare(u8 *write_data, u32 block,
-				u16 page, u16 page_count);
-u16  NAND_Write_Page_Spare(u8 *read_data, u32 block, u16 page,
-				u16 page_count);
-u16  NAND_Read_Page_Main_Spare(u8 *read_data, u32 block, u16 page,
-				u16 page_count);
-u16  NAND_Read_Page_Spare(u8 *read_data, u32 block, u16 page,
-				u16 page_count);
-void NAND_LLD_Enable_Disable_Interrupts(u16 INT_ENABLE);
-u16  NAND_Get_Bad_Block(u32 block);
-u16  NAND_Pipeline_Read_Ahead(u8 *read_data, u32 block, u16 page,
-				u16 page_count);
-u16  NAND_Pipeline_Write_Ahead(u8 *write_data, u32 block,
-				u16 page, u16 page_count);
-u16  NAND_Multiplane_Read(u8 *read_data, u32 block, u16 page,
-				u16 page_count);
-u16  NAND_Multiplane_Write(u8 *write_data, u32 block, u16 page,
-				u16 page_count);
-void NAND_ECC_Ctrl(int enable);
-u16 NAND_Read_Page_Main_Polling(u8 *read_data,
-		u32 block, u16 page, u16 page_count);
-u16 NAND_Pipeline_Read_Ahead_Polling(u8 *read_data,
-			u32 block, u16 page, u16 page_count);
-void Conv_Spare_Data_Log2Phy_Format(u8 *data);
-void Conv_Spare_Data_Phy2Log_Format(u8 *data);
-void Conv_Main_Spare_Data_Log2Phy_Format(u8 *data, u16 page_count);
-void Conv_Main_Spare_Data_Phy2Log_Format(u8 *data, u16 page_count);
-
-extern void __iomem *FlashReg;
-extern void __iomem *FlashMem;
-
-extern int totalUsedBanks;
-extern u32 GLOB_valid_banks[LLD_MAX_FLASH_BANKS];
-
-#endif /*_LLD_NAND_*/
-
-
-
diff --git a/drivers/staging/spectra/nand_regs.h b/drivers/staging/spectra/nand_regs.h
deleted file mode 100644
index e192e4ae8c1e..000000000000
--- a/drivers/staging/spectra/nand_regs.h
+++ /dev/null
@@ -1,619 +0,0 @@
-/*
- * NAND Flash Controller Device Driver
- * Copyright (c) 2009, Intel Corporation and its suppliers.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- */
-
-#define DEVICE_RESET				0x0
-#define     DEVICE_RESET__BANK0				0x0001
-#define     DEVICE_RESET__BANK1				0x0002
-#define     DEVICE_RESET__BANK2				0x0004
-#define     DEVICE_RESET__BANK3				0x0008
-
-#define TRANSFER_SPARE_REG			0x10
-#define     TRANSFER_SPARE_REG__FLAG			0x0001
-
-#define LOAD_WAIT_CNT				0x20
-#define     LOAD_WAIT_CNT__VALUE				0xffff
-
-#define PROGRAM_WAIT_CNT			0x30
-#define     PROGRAM_WAIT_CNT__VALUE			0xffff
-
-#define ERASE_WAIT_CNT				0x40
-#define     ERASE_WAIT_CNT__VALUE			0xffff
-
-#define INT_MON_CYCCNT				0x50
-#define     INT_MON_CYCCNT__VALUE			0xffff
-
-#define RB_PIN_ENABLED				0x60
-#define     RB_PIN_ENABLED__BANK0			0x0001
-#define     RB_PIN_ENABLED__BANK1			0x0002
-#define     RB_PIN_ENABLED__BANK2			0x0004
-#define     RB_PIN_ENABLED__BANK3			0x0008
-
-#define MULTIPLANE_OPERATION			0x70
-#define     MULTIPLANE_OPERATION__FLAG			0x0001
-
-#define MULTIPLANE_READ_ENABLE			0x80
-#define     MULTIPLANE_READ_ENABLE__FLAG		0x0001
-
-#define COPYBACK_DISABLE			0x90
-#define     COPYBACK_DISABLE__FLAG			0x0001
-
-#define CACHE_WRITE_ENABLE			0xa0
-#define     CACHE_WRITE_ENABLE__FLAG			0x0001
-
-#define CACHE_READ_ENABLE			0xb0
-#define     CACHE_READ_ENABLE__FLAG			0x0001
-
-#define PREFETCH_MODE				0xc0
-#define     PREFETCH_MODE__PREFETCH_EN			0x0001
-#define     PREFETCH_MODE__PREFETCH_BURST_LENGTH	0xfff0
-
-#define CHIP_ENABLE_DONT_CARE			0xd0
-#define     CHIP_EN_DONT_CARE__FLAG			0x01
-
-#define ECC_ENABLE				0xe0
-#define     ECC_ENABLE__FLAG				0x0001
-
-#define GLOBAL_INT_ENABLE			0xf0
-#define     GLOBAL_INT_EN_FLAG				0x01
-
-#define WE_2_RE					0x100
-#define     WE_2_RE__VALUE				0x003f
-
-#define ADDR_2_DATA				0x110
-#define     ADDR_2_DATA__VALUE				0x003f
-
-#define RE_2_WE					0x120
-#define     RE_2_WE__VALUE				0x003f
-
-#define ACC_CLKS    				0x130
-#define     ACC_CLKS__VALUE				0x000f
-
-#define NUMBER_OF_PLANES			0x140
-#define     NUMBER_OF_PLANES__VALUE			0x0007
-
-#define PAGES_PER_BLOCK				0x150
-#define     PAGES_PER_BLOCK__VALUE			0xffff
-
-#define DEVICE_WIDTH				0x160
-#define     DEVICE_WIDTH__VALUE				0x0003
-
-#define DEVICE_MAIN_AREA_SIZE			0x170
-#define     DEVICE_MAIN_AREA_SIZE__VALUE		0xffff
-
-#define DEVICE_SPARE_AREA_SIZE			0x180
-#define     DEVICE_SPARE_AREA_SIZE__VALUE		0xffff
-
-#define TWO_ROW_ADDR_CYCLES			0x190
-#define     TWO_ROW_ADDR_CYCLES__FLAG			0x0001
-
-#define MULTIPLANE_ADDR_RESTRICT		0x1a0
-#define     MULTIPLANE_ADDR_RESTRICT__FLAG		0x0001
-
-#define ECC_CORRECTION				0x1b0
-#define     ECC_CORRECTION__VALUE			0x001f
-
-#define READ_MODE				0x1c0
-#define     READ_MODE__VALUE				0x000f
-
-#define WRITE_MODE				0x1d0
-#define     WRITE_MODE__VALUE				0x000f
-
-#define COPYBACK_MODE				0x1e0
-#define     COPYBACK_MODE__VALUE			0x000f
-
-#define RDWR_EN_LO_CNT				0x1f0
-#define     RDWR_EN_LO_CNT__VALUE			0x001f
-
-#define RDWR_EN_HI_CNT				0x200
-#define     RDWR_EN_HI_CNT__VALUE			0x001f
-
-#define MAX_RD_DELAY				0x210
-#define     MAX_RD_DELAY__VALUE				0x000f
-
-#define CS_SETUP_CNT				0x220
-#define     CS_SETUP_CNT__VALUE				0x001f
-
-#define SPARE_AREA_SKIP_BYTES			0x230
-#define     SPARE_AREA_SKIP_BYTES__VALUE		0x003f
-
-#define SPARE_AREA_MARKER			0x240
-#define     SPARE_AREA_MARKER__VALUE			0xffff
-
-#define DEVICES_CONNECTED			0x250
-#define     DEVICES_CONNECTED__VALUE			0x0007
-
-#define DIE_MASK					0x260
-#define     DIE_MASK__VALUE				0x00ff
-
-#define FIRST_BLOCK_OF_NEXT_PLANE		0x270
-#define     FIRST_BLOCK_OF_NEXT_PLANE__VALUE		0xffff
-
-#define WRITE_PROTECT				0x280
-#define     WRITE_PROTECT__FLAG				0x0001
-
-#define RE_2_RE					0x290
-#define     RE_2_RE__VALUE				0x003f
-
-#define MANUFACTURER_ID			0x300
-#define     MANUFACTURER_ID__VALUE			0x00ff
-
-#define DEVICE_ID				0x310
-#define     DEVICE_ID__VALUE				0x00ff
-
-#define DEVICE_PARAM_0				0x320
-#define     DEVICE_PARAM_0__VALUE			0x00ff
-
-#define DEVICE_PARAM_1				0x330
-#define     DEVICE_PARAM_1__VALUE			0x00ff
-
-#define DEVICE_PARAM_2				0x340
-#define     DEVICE_PARAM_2__VALUE			0x00ff
-
-#define LOGICAL_PAGE_DATA_SIZE			0x350
-#define     LOGICAL_PAGE_DATA_SIZE__VALUE		0xffff
-
-#define LOGICAL_PAGE_SPARE_SIZE			0x360
-#define     LOGICAL_PAGE_SPARE_SIZE__VALUE		0xffff
-
-#define REVISION					0x370
-#define     REVISION__VALUE				0xffff
-
-#define ONFI_DEVICE_FEATURES			0x380
-#define     ONFI_DEVICE_FEATURES__VALUE			0x003f
-
-#define ONFI_OPTIONAL_COMMANDS		0x390
-#define     ONFI_OPTIONAL_COMMANDS__VALUE		0x003f
-
-#define ONFI_TIMING_MODE			0x3a0
-#define     ONFI_TIMING_MODE__VALUE			0x003f
-
-#define ONFI_PGM_CACHE_TIMING_MODE		0x3b0
-#define     ONFI_PGM_CACHE_TIMING_MODE__VALUE		0x003f
-
-#define ONFI_DEVICE_NO_OF_LUNS			0x3c0
-#define     ONFI_DEVICE_NO_OF_LUNS__NO_OF_LUNS		0x00ff
-#define     ONFI_DEVICE_NO_OF_LUNS__ONFI_DEVICE		0x0100
-
-#define ONFI_DEVICE_NO_OF_BLOCKS_PER_LUN_L	0x3d0
-#define     ONFI_DEVICE_NO_OF_BLOCKS_PER_LUN_L__VALUE	0xffff
-
-#define ONFI_DEVICE_NO_OF_BLOCKS_PER_LUN_U	0x3e0
-#define     ONFI_DEVICE_NO_OF_BLOCKS_PER_LUN_U__VALUE	0xffff
-
-#define FEATURES					0x3f0
-#define     FEATURES__N_BANKS				0x0003
-#define     FEATURES__ECC_MAX_ERR			0x003c
-#define     FEATURES__DMA					0x0040
-#define     FEATURES__CMD_DMA				0x0080
-#define     FEATURES__PARTITION				0x0100
-#define     FEATURES__XDMA_SIDEBAND			0x0200
-#define     FEATURES__GPREG				0x0400
-#define     FEATURES__INDEX_ADDR				0x0800
-
-#define TRANSFER_MODE				0x400
-#define     TRANSFER_MODE__VALUE			0x0003
-
-#define INTR_STATUS0				0x410
-#define     INTR_STATUS0__ECC_TRANSACTION_DONE		0x0001
-#define     INTR_STATUS0__ECC_ERR			0x0002
-#define     INTR_STATUS0__DMA_CMD_COMP			0x0004
-#define     INTR_STATUS0__TIME_OUT			0x0008
-#define     INTR_STATUS0__PROGRAM_FAIL			0x0010
-#define     INTR_STATUS0__ERASE_FAIL			0x0020
-#define     INTR_STATUS0__LOAD_COMP			0x0040
-#define     INTR_STATUS0__PROGRAM_COMP			0x0080
-#define     INTR_STATUS0__ERASE_COMP			0x0100
-#define     INTR_STATUS0__PIPE_CPYBCK_CMD_COMP		0x0200
-#define     INTR_STATUS0__LOCKED_BLK			0x0400
-#define     INTR_STATUS0__UNSUP_CMD			0x0800
-#define     INTR_STATUS0__INT_ACT			0x1000
-#define     INTR_STATUS0__RST_COMP			0x2000
-#define     INTR_STATUS0__PIPE_CMD_ERR			0x4000
-#define     INTR_STATUS0__PAGE_XFER_INC			0x8000
-
-#define INTR_EN0					0x420
-#define     INTR_EN0__ECC_TRANSACTION_DONE		0x0001
-#define     INTR_EN0__ECC_ERR				0x0002
-#define     INTR_EN0__DMA_CMD_COMP			0x0004
-#define     INTR_EN0__TIME_OUT				0x0008
-#define     INTR_EN0__PROGRAM_FAIL			0x0010
-#define     INTR_EN0__ERASE_FAIL				0x0020
-#define     INTR_EN0__LOAD_COMP				0x0040
-#define     INTR_EN0__PROGRAM_COMP			0x0080
-#define     INTR_EN0__ERASE_COMP				0x0100
-#define     INTR_EN0__PIPE_CPYBCK_CMD_COMP		0x0200
-#define     INTR_EN0__LOCKED_BLK				0x0400
-#define     INTR_EN0__UNSUP_CMD				0x0800
-#define     INTR_EN0__INT_ACT				0x1000
-#define     INTR_EN0__RST_COMP				0x2000
-#define     INTR_EN0__PIPE_CMD_ERR			0x4000
-#define     INTR_EN0__PAGE_XFER_INC			0x8000
-
-#define PAGE_CNT0				0x430
-#define     PAGE_CNT0__VALUE				0x00ff
-
-#define ERR_PAGE_ADDR0				0x440
-#define     ERR_PAGE_ADDR0__VALUE			0xffff
-
-#define ERR_BLOCK_ADDR0			0x450
-#define     ERR_BLOCK_ADDR0__VALUE			0xffff
-
-#define INTR_STATUS1				0x460
-#define     INTR_STATUS1__ECC_TRANSACTION_DONE		0x0001
-#define     INTR_STATUS1__ECC_ERR			0x0002
-#define     INTR_STATUS1__DMA_CMD_COMP			0x0004
-#define     INTR_STATUS1__TIME_OUT			0x0008
-#define     INTR_STATUS1__PROGRAM_FAIL			0x0010
-#define     INTR_STATUS1__ERASE_FAIL			0x0020
-#define     INTR_STATUS1__LOAD_COMP			0x0040
-#define     INTR_STATUS1__PROGRAM_COMP			0x0080
-#define     INTR_STATUS1__ERASE_COMP			0x0100
-#define     INTR_STATUS1__PIPE_CPYBCK_CMD_COMP		0x0200
-#define     INTR_STATUS1__LOCKED_BLK			0x0400
-#define     INTR_STATUS1__UNSUP_CMD			0x0800
-#define     INTR_STATUS1__INT_ACT			0x1000
-#define     INTR_STATUS1__RST_COMP			0x2000
-#define     INTR_STATUS1__PIPE_CMD_ERR			0x4000
-#define     INTR_STATUS1__PAGE_XFER_INC			0x8000
-
-#define INTR_EN1					0x470
-#define     INTR_EN1__ECC_TRANSACTION_DONE		0x0001
-#define     INTR_EN1__ECC_ERR				0x0002
-#define     INTR_EN1__DMA_CMD_COMP			0x0004
-#define     INTR_EN1__TIME_OUT				0x0008
-#define     INTR_EN1__PROGRAM_FAIL			0x0010
-#define     INTR_EN1__ERASE_FAIL				0x0020
-#define     INTR_EN1__LOAD_COMP				0x0040
-#define     INTR_EN1__PROGRAM_COMP			0x0080
-#define     INTR_EN1__ERASE_COMP				0x0100
-#define     INTR_EN1__PIPE_CPYBCK_CMD_COMP		0x0200
-#define     INTR_EN1__LOCKED_BLK				0x0400
-#define     INTR_EN1__UNSUP_CMD				0x0800
-#define     INTR_EN1__INT_ACT				0x1000
-#define     INTR_EN1__RST_COMP				0x2000
-#define     INTR_EN1__PIPE_CMD_ERR			0x4000
-#define     INTR_EN1__PAGE_XFER_INC			0x8000
-
-#define PAGE_CNT1				0x480
-#define     PAGE_CNT1__VALUE				0x00ff
-
-#define ERR_PAGE_ADDR1				0x490
-#define     ERR_PAGE_ADDR1__VALUE			0xffff
-
-#define ERR_BLOCK_ADDR1			0x4a0
-#define     ERR_BLOCK_ADDR1__VALUE			0xffff
-
-#define INTR_STATUS2				0x4b0
-#define     INTR_STATUS2__ECC_TRANSACTION_DONE		0x0001
-#define     INTR_STATUS2__ECC_ERR			0x0002
-#define     INTR_STATUS2__DMA_CMD_COMP			0x0004
-#define     INTR_STATUS2__TIME_OUT			0x0008
-#define     INTR_STATUS2__PROGRAM_FAIL			0x0010
-#define     INTR_STATUS2__ERASE_FAIL			0x0020
-#define     INTR_STATUS2__LOAD_COMP			0x0040
-#define     INTR_STATUS2__PROGRAM_COMP			0x0080
-#define     INTR_STATUS2__ERASE_COMP			0x0100
-#define     INTR_STATUS2__PIPE_CPYBCK_CMD_COMP		0x0200
-#define     INTR_STATUS2__LOCKED_BLK			0x0400
-#define     INTR_STATUS2__UNSUP_CMD			0x0800
-#define     INTR_STATUS2__INT_ACT			0x1000
-#define     INTR_STATUS2__RST_COMP			0x2000
-#define     INTR_STATUS2__PIPE_CMD_ERR			0x4000
-#define     INTR_STATUS2__PAGE_XFER_INC			0x8000
-
-#define INTR_EN2					0x4c0
-#define     INTR_EN2__ECC_TRANSACTION_DONE		0x0001
-#define     INTR_EN2__ECC_ERR				0x0002
-#define     INTR_EN2__DMA_CMD_COMP			0x0004
-#define     INTR_EN2__TIME_OUT				0x0008
-#define     INTR_EN2__PROGRAM_FAIL			0x0010
-#define     INTR_EN2__ERASE_FAIL				0x0020
-#define     INTR_EN2__LOAD_COMP				0x0040
-#define     INTR_EN2__PROGRAM_COMP			0x0080
-#define     INTR_EN2__ERASE_COMP				0x0100
-#define     INTR_EN2__PIPE_CPYBCK_CMD_COMP		0x0200
-#define     INTR_EN2__LOCKED_BLK				0x0400
-#define     INTR_EN2__UNSUP_CMD				0x0800
-#define     INTR_EN2__INT_ACT				0x1000
-#define     INTR_EN2__RST_COMP				0x2000
-#define     INTR_EN2__PIPE_CMD_ERR			0x4000
-#define     INTR_EN2__PAGE_XFER_INC			0x8000
-
-#define PAGE_CNT2				0x4d0
-#define     PAGE_CNT2__VALUE				0x00ff
-
-#define ERR_PAGE_ADDR2				0x4e0
-#define     ERR_PAGE_ADDR2__VALUE			0xffff
-
-#define ERR_BLOCK_ADDR2			0x4f0
-#define     ERR_BLOCK_ADDR2__VALUE			0xffff
-
-#define INTR_STATUS3				0x500
-#define     INTR_STATUS3__ECC_TRANSACTION_DONE		0x0001
-#define     INTR_STATUS3__ECC_ERR			0x0002
-#define     INTR_STATUS3__DMA_CMD_COMP			0x0004
-#define     INTR_STATUS3__TIME_OUT			0x0008
-#define     INTR_STATUS3__PROGRAM_FAIL			0x0010
-#define     INTR_STATUS3__ERASE_FAIL			0x0020
-#define     INTR_STATUS3__LOAD_COMP			0x0040
-#define     INTR_STATUS3__PROGRAM_COMP			0x0080
-#define     INTR_STATUS3__ERASE_COMP			0x0100
-#define     INTR_STATUS3__PIPE_CPYBCK_CMD_COMP		0x0200
-#define     INTR_STATUS3__LOCKED_BLK			0x0400
-#define     INTR_STATUS3__UNSUP_CMD			0x0800
-#define     INTR_STATUS3__INT_ACT			0x1000
-#define     INTR_STATUS3__RST_COMP			0x2000
-#define     INTR_STATUS3__PIPE_CMD_ERR			0x4000
-#define     INTR_STATUS3__PAGE_XFER_INC			0x8000
-
-#define INTR_EN3					0x510
-#define     INTR_EN3__ECC_TRANSACTION_DONE		0x0001
-#define     INTR_EN3__ECC_ERR				0x0002
-#define     INTR_EN3__DMA_CMD_COMP			0x0004
-#define     INTR_EN3__TIME_OUT				0x0008
-#define     INTR_EN3__PROGRAM_FAIL			0x0010
-#define     INTR_EN3__ERASE_FAIL				0x0020
-#define     INTR_EN3__LOAD_COMP				0x0040
-#define     INTR_EN3__PROGRAM_COMP			0x0080
-#define     INTR_EN3__ERASE_COMP				0x0100
-#define     INTR_EN3__PIPE_CPYBCK_CMD_COMP		0x0200
-#define     INTR_EN3__LOCKED_BLK				0x0400
-#define     INTR_EN3__UNSUP_CMD				0x0800
-#define     INTR_EN3__INT_ACT				0x1000
-#define     INTR_EN3__RST_COMP				0x2000
-#define     INTR_EN3__PIPE_CMD_ERR			0x4000
-#define     INTR_EN3__PAGE_XFER_INC			0x8000
-
-#define PAGE_CNT3				0x520
-#define     PAGE_CNT3__VALUE				0x00ff
-
-#define ERR_PAGE_ADDR3				0x530
-#define     ERR_PAGE_ADDR3__VALUE			0xffff
-
-#define ERR_BLOCK_ADDR3			0x540
-#define     ERR_BLOCK_ADDR3__VALUE			0xffff
-
-#define DATA_INTR				0x550
-#define     DATA_INTR__WRITE_SPACE_AV			0x0001
-#define     DATA_INTR__READ_DATA_AV			0x0002
-
-#define DATA_INTR_EN				0x560
-#define     DATA_INTR_EN__WRITE_SPACE_AV		0x0001
-#define     DATA_INTR_EN__READ_DATA_AV			0x0002
-
-#define GPREG_0					0x570
-#define     GPREG_0__VALUE				0xffff
-
-#define GPREG_1					0x580
-#define     GPREG_1__VALUE				0xffff
-
-#define GPREG_2					0x590
-#define     GPREG_2__VALUE				0xffff
-
-#define GPREG_3					0x5a0
-#define     GPREG_3__VALUE				0xffff
-
-#define ECC_THRESHOLD				0x600
-#define     ECC_THRESHOLD__VALUE				0x03ff
-
-#define ECC_ERROR_BLOCK_ADDRESS		0x610
-#define     ECC_ERROR_BLOCK_ADDRESS__VALUE		0xffff
-
-#define ECC_ERROR_PAGE_ADDRESS			0x620
-#define     ECC_ERROR_PAGE_ADDRESS__VALUE		0x0fff
-#define     ECC_ERROR_PAGE_ADDRESS__BANK		0xf000
-
-#define ECC_ERROR_ADDRESS			0x630
-#define     ECC_ERROR_ADDRESS__OFFSET			0x0fff
-#define     ECC_ERROR_ADDRESS__SECTOR_NR		0xf000
-
-#define ERR_CORRECTION_INFO			0x640
-#define     ERR_CORRECTION_INFO__BYTEMASK		0x00ff
-#define     ERR_CORRECTION_INFO__DEVICE_NR		0x0f00
-#define     ERR_CORRECTION_INFO__ERROR_TYPE		0x4000
-#define     ERR_CORRECTION_INFO__LAST_ERR_INFO		0x8000
-
-#define DMA_ENABLE				0x700
-#define     DMA_ENABLE__FLAG				0x0001
-
-#define IGNORE_ECC_DONE				0x710
-#define     IGNORE_ECC_DONE__FLAG			0x0001
-
-#define DMA_INTR				0x720
-#define     DMA_INTR__TARGET_ERROR			0x0001
-#define     DMA_INTR__DESC_COMP_CHANNEL0		0x0002
-#define     DMA_INTR__DESC_COMP_CHANNEL1		0x0004
-#define     DMA_INTR__DESC_COMP_CHANNEL2		0x0008
-#define     DMA_INTR__DESC_COMP_CHANNEL3		0x0010
-#define     DMA_INTR__MEMCOPY_DESC_COMP		0x0020
-
-#define DMA_INTR_EN				0x730
-#define     DMA_INTR_EN__TARGET_ERROR			0x0001
-#define     DMA_INTR_EN__DESC_COMP_CHANNEL0		0x0002
-#define     DMA_INTR_EN__DESC_COMP_CHANNEL1		0x0004
-#define     DMA_INTR_EN__DESC_COMP_CHANNEL2		0x0008
-#define     DMA_INTR_EN__DESC_COMP_CHANNEL3		0x0010
-#define     DMA_INTR_EN__MEMCOPY_DESC_COMP		0x0020
-
-#define TARGET_ERR_ADDR_LO			0x740
-#define     TARGET_ERR_ADDR_LO__VALUE			0xffff
-
-#define TARGET_ERR_ADDR_HI			0x750
-#define     TARGET_ERR_ADDR_HI__VALUE			0xffff
-
-#define CHNL_ACTIVE				0x760
-#define     CHNL_ACTIVE__CHANNEL0			0x0001
-#define     CHNL_ACTIVE__CHANNEL1			0x0002
-#define     CHNL_ACTIVE__CHANNEL2			0x0004
-#define     CHNL_ACTIVE__CHANNEL3			0x0008
-
-#define ACTIVE_SRC_ID				0x800
-#define     ACTIVE_SRC_ID__VALUE				0x00ff
-
-#define PTN_INTR					0x810
-#define     PTN_INTR__CONFIG_ERROR			0x0001
-#define     PTN_INTR__ACCESS_ERROR_BANK0		0x0002
-#define     PTN_INTR__ACCESS_ERROR_BANK1		0x0004
-#define     PTN_INTR__ACCESS_ERROR_BANK2		0x0008
-#define     PTN_INTR__ACCESS_ERROR_BANK3		0x0010
-#define     PTN_INTR__REG_ACCESS_ERROR			0x0020
-
-#define PTN_INTR_EN				0x820
-#define     PTN_INTR_EN__CONFIG_ERROR			0x0001
-#define     PTN_INTR_EN__ACCESS_ERROR_BANK0		0x0002
-#define     PTN_INTR_EN__ACCESS_ERROR_BANK1		0x0004
-#define     PTN_INTR_EN__ACCESS_ERROR_BANK2		0x0008
-#define     PTN_INTR_EN__ACCESS_ERROR_BANK3		0x0010
-#define     PTN_INTR_EN__REG_ACCESS_ERROR		0x0020
-
-#define PERM_SRC_ID_0				0x830
-#define     PERM_SRC_ID_0__SRCID				0x00ff
-#define     PERM_SRC_ID_0__DIRECT_ACCESS_ACTIVE		0x0800
-#define     PERM_SRC_ID_0__WRITE_ACTIVE			0x2000
-#define     PERM_SRC_ID_0__READ_ACTIVE			0x4000
-#define     PERM_SRC_ID_0__PARTITION_VALID		0x8000
-
-#define MIN_BLK_ADDR_0				0x840
-#define     MIN_BLK_ADDR_0__VALUE			0xffff
-
-#define MAX_BLK_ADDR_0				0x850
-#define     MAX_BLK_ADDR_0__VALUE			0xffff
-
-#define MIN_MAX_BANK_0				0x860
-#define     MIN_MAX_BANK_0__MIN_VALUE			0x0003
-#define     MIN_MAX_BANK_0__MAX_VALUE			0x000c
-
-#define PERM_SRC_ID_1				0x870
-#define     PERM_SRC_ID_1__SRCID				0x00ff
-#define     PERM_SRC_ID_1__DIRECT_ACCESS_ACTIVE		0x0800
-#define     PERM_SRC_ID_1__WRITE_ACTIVE			0x2000
-#define     PERM_SRC_ID_1__READ_ACTIVE			0x4000
-#define     PERM_SRC_ID_1__PARTITION_VALID		0x8000
-
-#define MIN_BLK_ADDR_1				0x880
-#define     MIN_BLK_ADDR_1__VALUE			0xffff
-
-#define MAX_BLK_ADDR_1				0x890
-#define     MAX_BLK_ADDR_1__VALUE			0xffff
-
-#define MIN_MAX_BANK_1				0x8a0
-#define     MIN_MAX_BANK_1__MIN_VALUE			0x0003
-#define     MIN_MAX_BANK_1__MAX_VALUE			0x000c
-
-#define PERM_SRC_ID_2				0x8b0
-#define     PERM_SRC_ID_2__SRCID				0x00ff
-#define     PERM_SRC_ID_2__DIRECT_ACCESS_ACTIVE		0x0800
-#define     PERM_SRC_ID_2__WRITE_ACTIVE			0x2000
-#define     PERM_SRC_ID_2__READ_ACTIVE			0x4000
-#define     PERM_SRC_ID_2__PARTITION_VALID		0x8000
-
-#define MIN_BLK_ADDR_2				0x8c0
-#define     MIN_BLK_ADDR_2__VALUE			0xffff
-
-#define MAX_BLK_ADDR_2				0x8d0
-#define     MAX_BLK_ADDR_2__VALUE			0xffff
-
-#define MIN_MAX_BANK_2				0x8e0
-#define     MIN_MAX_BANK_2__MIN_VALUE			0x0003
-#define     MIN_MAX_BANK_2__MAX_VALUE			0x000c
-
-#define PERM_SRC_ID_3				0x8f0
-#define     PERM_SRC_ID_3__SRCID				0x00ff
-#define     PERM_SRC_ID_3__DIRECT_ACCESS_ACTIVE		0x0800
-#define     PERM_SRC_ID_3__WRITE_ACTIVE			0x2000
-#define     PERM_SRC_ID_3__READ_ACTIVE			0x4000
-#define     PERM_SRC_ID_3__PARTITION_VALID		0x8000
-
-#define MIN_BLK_ADDR_3				0x900
-#define     MIN_BLK_ADDR_3__VALUE			0xffff
-
-#define MAX_BLK_ADDR_3				0x910
-#define     MAX_BLK_ADDR_3__VALUE			0xffff
-
-#define MIN_MAX_BANK_3				0x920
-#define     MIN_MAX_BANK_3__MIN_VALUE			0x0003
-#define     MIN_MAX_BANK_3__MAX_VALUE			0x000c
-
-#define PERM_SRC_ID_4				0x930
-#define     PERM_SRC_ID_4__SRCID				0x00ff
-#define     PERM_SRC_ID_4__DIRECT_ACCESS_ACTIVE		0x0800
-#define     PERM_SRC_ID_4__WRITE_ACTIVE			0x2000
-#define     PERM_SRC_ID_4__READ_ACTIVE			0x4000
-#define     PERM_SRC_ID_4__PARTITION_VALID		0x8000
-
-#define MIN_BLK_ADDR_4				0x940
-#define     MIN_BLK_ADDR_4__VALUE			0xffff
-
-#define MAX_BLK_ADDR_4				0x950
-#define     MAX_BLK_ADDR_4__VALUE			0xffff
-
-#define MIN_MAX_BANK_4				0x960
-#define     MIN_MAX_BANK_4__MIN_VALUE			0x0003
-#define     MIN_MAX_BANK_4__MAX_VALUE			0x000c
-
-#define PERM_SRC_ID_5				0x970
-#define     PERM_SRC_ID_5__SRCID				0x00ff
-#define     PERM_SRC_ID_5__DIRECT_ACCESS_ACTIVE		0x0800
-#define     PERM_SRC_ID_5__WRITE_ACTIVE			0x2000
-#define     PERM_SRC_ID_5__READ_ACTIVE			0x4000
-#define     PERM_SRC_ID_5__PARTITION_VALID		0x8000
-
-#define MIN_BLK_ADDR_5				0x980
-#define     MIN_BLK_ADDR_5__VALUE			0xffff
-
-#define MAX_BLK_ADDR_5				0x990
-#define     MAX_BLK_ADDR_5__VALUE			0xffff
-
-#define MIN_MAX_BANK_5				0x9a0
-#define     MIN_MAX_BANK_5__MIN_VALUE			0x0003
-#define     MIN_MAX_BANK_5__MAX_VALUE			0x000c
-
-#define PERM_SRC_ID_6				0x9b0
-#define     PERM_SRC_ID_6__SRCID				0x00ff
-#define     PERM_SRC_ID_6__DIRECT_ACCESS_ACTIVE		0x0800
-#define     PERM_SRC_ID_6__WRITE_ACTIVE			0x2000
-#define     PERM_SRC_ID_6__READ_ACTIVE			0x4000
-#define     PERM_SRC_ID_6__PARTITION_VALID		0x8000
-
-#define MIN_BLK_ADDR_6				0x9c0
-#define     MIN_BLK_ADDR_6__VALUE			0xffff
-
-#define MAX_BLK_ADDR_6				0x9d0
-#define     MAX_BLK_ADDR_6__VALUE			0xffff
-
-#define MIN_MAX_BANK_6				0x9e0
-#define     MIN_MAX_BANK_6__MIN_VALUE			0x0003
-#define     MIN_MAX_BANK_6__MAX_VALUE			0x000c
-
-#define PERM_SRC_ID_7				0x9f0
-#define     PERM_SRC_ID_7__SRCID				0x00ff
-#define     PERM_SRC_ID_7__DIRECT_ACCESS_ACTIVE		0x0800
-#define     PERM_SRC_ID_7__WRITE_ACTIVE			0x2000
-#define     PERM_SRC_ID_7__READ_ACTIVE			0x4000
-#define     PERM_SRC_ID_7__PARTITION_VALID		0x8000
-
-#define MIN_BLK_ADDR_7				0xa00
-#define     MIN_BLK_ADDR_7__VALUE			0xffff
-
-#define MAX_BLK_ADDR_7				0xa10
-#define     MAX_BLK_ADDR_7__VALUE			0xffff
-
-#define MIN_MAX_BANK_7				0xa20
-#define     MIN_MAX_BANK_7__MIN_VALUE			0x0003
-#define     MIN_MAX_BANK_7__MAX_VALUE			0x000c
diff --git a/drivers/staging/spectra/spectraswconfig.h b/drivers/staging/spectra/spectraswconfig.h
deleted file mode 100644
index 17259469e955..000000000000
--- a/drivers/staging/spectra/spectraswconfig.h
+++ /dev/null
@@ -1,82 +0,0 @@
-/*
- * NAND Flash Controller Device Driver
- * Copyright (c) 2009, Intel Corporation and its suppliers.
- *
- * This program is free software; you can redistribute it and/or modify it
- * under the terms and conditions of the GNU General Public License,
- * version 2, as published by the Free Software Foundation.
- *
- * This program is distributed in the hope it will be useful, but WITHOUT
- * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
- * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
- * more details.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
- *
- */
-
-#ifndef _SPECTRASWCONFIG_
-#define _SPECTRASWCONFIG_
-
-/* NAND driver version */
-#define GLOB_VERSION          "driver version 20100311"
-
-
-/***** Common Parameters *****/
-#define RETRY_TIMES                   3
-
-#define READ_BADBLOCK_INFO            1
-#define READBACK_VERIFY               0
-#define AUTO_FORMAT_FLASH             0
-
-/***** Cache Parameters *****/
-#define CACHE_ITEM_NUM            128
-#define BLK_NUM_FOR_L2_CACHE        16
-
-/***** Block Table Parameters *****/
-#define BLOCK_TABLE_INDEX             0
-
-/***** Wear Leveling Parameters *****/
-#define WEAR_LEVELING_GATE         0x10
-#define WEAR_LEVELING_BLOCK_NUM      10
-
-#define DEBUG_BNDRY             0
-
-/***** Product Feature Support *****/
-#define FLASH_EMU               defined(CONFIG_SPECTRA_EMU)
-#define FLASH_NAND              defined(CONFIG_SPECTRA_MRST_HW)
-#define FLASH_MTD               defined(CONFIG_SPECTRA_MTD)
-#define CMD_DMA                 defined(CONFIG_SPECTRA_MRST_HW_DMA)
-
-#define SPECTRA_PARTITION_ID    0
-
-/* Enable this macro if the number of flash blocks is larger than 16K. */
-#define SUPPORT_LARGE_BLOCKNUM  1
-
-/**** Block Table and Reserved Block Parameters *****/
-#define SPECTRA_START_BLOCK     3
-//#define NUM_FREE_BLOCKS_GATE    30
-#define NUM_FREE_BLOCKS_GATE    60
-
-/**** Hardware Parameters ****/
-#define GLOB_HWCTL_REG_BASE     0xFFA40000
-#define GLOB_HWCTL_REG_SIZE     4096
-
-#define GLOB_HWCTL_MEM_BASE     0xFFA48000
-#define GLOB_HWCTL_MEM_SIZE     4096
-
-/* KBV - Updated to LNW scratch register address */
-#define SCRATCH_REG_ADDR    0xFF108018
-#define SCRATCH_REG_SIZE    64
-
-#define GLOB_HWCTL_DEFAULT_BLKS    2048
-
-#define SUPPORT_15BITECC        1
-#define SUPPORT_8BITECC         1
-
-#define ONFI_BLOOM_TIME         0
-#define MODE5_WORKAROUND        1
-
-#endif /*_SPECTRASWCONFIG_*/
diff --git a/drivers/staging/usbip/stub_dev.c b/drivers/staging/usbip/stub_dev.c
index 55c0b510889c..03420e25d9c6 100644
--- a/drivers/staging/usbip/stub_dev.c
+++ b/drivers/staging/usbip/stub_dev.c
@@ -109,11 +109,6 @@ static ssize_t store_sockfd(struct device *dev, struct device_attribute *attr,
 			spin_unlock(&sdev->ud.lock);
 			return -EINVAL;
 		}
-#if 0
-		setnodelay(socket);
-		setkeepalive(socket);
-		setreuse(socket);
-#endif
 		sdev->ud.tcp_socket = socket;
 
 		spin_unlock(&sdev->ud.lock);
diff --git a/drivers/staging/usbip/stub_rx.c b/drivers/staging/usbip/stub_rx.c
index 6b4e3e182de8..27ac363d1cfa 100644
--- a/drivers/staging/usbip/stub_rx.c
+++ b/drivers/staging/usbip/stub_rx.c
@@ -564,7 +564,7 @@ static void stub_rx_pdu(struct usbip_device *ud)
 	memset(&pdu, 0, sizeof(pdu));
 
 	/* 1. receive a pdu header */
-	ret = usbip_xmit(0, ud->tcp_socket, (char *) &pdu, sizeof(pdu), 0);
+	ret = usbip_recv(ud->tcp_socket, &pdu, sizeof(pdu));
 	if (ret != sizeof(pdu)) {
 		dev_err(dev, "recv a header, %d\n", ret);
 		usbip_event_add(ud, SDEV_EVENT_ERROR_TCP);
diff --git a/drivers/staging/usbip/usbip_common.c b/drivers/staging/usbip/usbip_common.c
index 3b7a847f4657..d93e7f1f7973 100644
--- a/drivers/staging/usbip/usbip_common.c
+++ b/drivers/staging/usbip/usbip_common.c
@@ -334,9 +334,8 @@ void usbip_dump_header(struct usbip_header *pdu)
 }
 EXPORT_SYMBOL_GPL(usbip_dump_header);
 
-/* Send/receive messages over TCP/IP. I refer drivers/block/nbd.c */
-int usbip_xmit(int send, struct socket *sock, char *buf, int size,
-	       int msg_flags)
+/* Receive data over TCP/IP. */
+int usbip_recv(struct socket *sock, void *buf, int size)
 {
 	int result;
 	struct msghdr msg;
@@ -355,19 +354,6 @@ int usbip_xmit(int send, struct socket *sock, char *buf, int size,
 		return -EINVAL;
 	}
 
-	if (usbip_dbg_flag_xmit) {
-		if (send) {
-			if (!in_interrupt())
-				pr_debug("%-10s:", current->comm);
-			else
-				pr_debug("interrupt  :");
-
-			pr_debug("sending... , sock %p, buf %p, size %d, "
-				 "msg_flags %d\n", sock, buf, size, msg_flags);
-			usbip_dump_buffer(buf, size);
-		}
-	}
-
 	do {
 		sock->sk->sk_allocation = GFP_NOIO;
 		iov.iov_base    = buf;
@@ -377,42 +363,30 @@ int usbip_xmit(int send, struct socket *sock, char *buf, int size,
 		msg.msg_control = NULL;
 		msg.msg_controllen = 0;
 		msg.msg_namelen    = 0;
-		msg.msg_flags      = msg_flags | MSG_NOSIGNAL;
-
-		if (send)
-			result = kernel_sendmsg(sock, &msg, &iov, 1, size);
-		else
-			result = kernel_recvmsg(sock, &msg, &iov, 1, size,
-						MSG_WAITALL);
+		msg.msg_flags      = MSG_NOSIGNAL;
 
+		result = kernel_recvmsg(sock, &msg, &iov, 1, size, MSG_WAITALL);
 		if (result <= 0) {
-			pr_debug("%s sock %p buf %p size %u ret %d total %d\n",
-				 send ? "send" : "receive", sock, buf, size,
-				 result, total);
+			pr_debug("receive sock %p buf %p size %u ret %d total %d\n",
+				 sock, buf, size, result, total);
 			goto err;
 		}
 
 		size -= result;
 		buf += result;
 		total += result;
-
 	} while (size > 0);
 
 	if (usbip_dbg_flag_xmit) {
-		if (!send) {
-			if (!in_interrupt())
-				pr_debug("%-10s:", current->comm);
-			else
-				pr_debug("interrupt  :");
-
-			pr_debug("receiving....\n");
-			usbip_dump_buffer(bp, osize);
-			pr_debug("received, osize %d ret %d size %d total %d\n",
-				 osize, result, size, total);
-		}
+		if (!in_interrupt())
+			pr_debug("%-10s:", current->comm);
+		else
+			pr_debug("interrupt  :");
 
-		if (send)
-			pr_debug("send, total %d\n", total);
+		pr_debug("receiving....\n");
+		usbip_dump_buffer(bp, osize);
+		pr_debug("received, osize %d ret %d size %d total %d\n",
+			osize, result, size, total);
 	}
 
 	return total;
@@ -420,7 +394,7 @@ int usbip_xmit(int send, struct socket *sock, char *buf, int size,
 err:
 	return result;
 }
-EXPORT_SYMBOL_GPL(usbip_xmit);
+EXPORT_SYMBOL_GPL(usbip_recv);
 
 struct socket *sockfd_to_socket(unsigned int sockfd)
 {
@@ -712,7 +686,7 @@ int usbip_recv_iso(struct usbip_device *ud, struct urb *urb)
 	if (!buff)
 		return -ENOMEM;
 
-	ret = usbip_xmit(0, ud->tcp_socket, buff, size, 0);
+	ret = usbip_recv(ud->tcp_socket, buff, size);
 	if (ret != size) {
 		dev_err(&urb->dev->dev, "recv iso_frame_descriptor, %d\n",
 			ret);
@@ -823,8 +797,7 @@ int usbip_recv_xbuff(struct usbip_device *ud, struct urb *urb)
 	if (!(size > 0))
 		return 0;
 
-	ret = usbip_xmit(0, ud->tcp_socket, (char *)urb->transfer_buffer,
-			 size, 0);
+	ret = usbip_recv(ud->tcp_socket, urb->transfer_buffer, size);
 	if (ret != size) {
 		dev_err(&urb->dev->dev, "recv xbuf, %d\n", ret);
 		if (ud->side == USBIP_STUB) {
diff --git a/drivers/staging/usbip/usbip_common.h b/drivers/staging/usbip/usbip_common.h
index be216175ae87..b8f8c48b8a72 100644
--- a/drivers/staging/usbip/usbip_common.h
+++ b/drivers/staging/usbip/usbip_common.h
@@ -292,21 +292,11 @@ struct usbip_device {
 	} eh_ops;
 };
 
-#if 0
-int usbip_sendmsg(struct socket *, struct msghdr *, int);
-int set_sockaddr(struct socket *socket, struct sockaddr_storage *ss);
-int setnodelay(struct socket *);
-int setquickack(struct socket *);
-int setkeepalive(struct socket *socket);
-void setreuse(struct socket *);
-#endif
-
 /* usbip_common.c */
 void usbip_dump_urb(struct urb *purb);
 void usbip_dump_header(struct usbip_header *pdu);
 
-int usbip_xmit(int send, struct socket *sock, char *buf, int size,
-	       int msg_flags);
+int usbip_recv(struct socket *sock, void *buf, int size);
 struct socket *sockfd_to_socket(unsigned int sockfd);
 
 void usbip_pack_pdu(struct usbip_header *pdu, struct urb *urb, int cmd,
@@ -337,9 +327,4 @@ static inline int interface_to_devnum(struct usb_interface *interface)
 	return udev->devnum;
 }
 
-static inline int interface_to_infnum(struct usb_interface *interface)
-{
-	return interface->cur_altsetting->desc.bInterfaceNumber;
-}
-
 #endif /* __USBIP_COMMON_H */
diff --git a/drivers/staging/usbip/vhci_rx.c b/drivers/staging/usbip/vhci_rx.c
index 3872b8cccdcf..3f511b47563d 100644
--- a/drivers/staging/usbip/vhci_rx.c
+++ b/drivers/staging/usbip/vhci_rx.c
@@ -206,7 +206,7 @@ static void vhci_rx_pdu(struct usbip_device *ud)
 	memset(&pdu, 0, sizeof(pdu));
 
 	/* 1. receive a pdu header */
-	ret = usbip_xmit(0, ud->tcp_socket, (char *) &pdu, sizeof(pdu), 0);
+	ret = usbip_recv(ud->tcp_socket, &pdu, sizeof(pdu));
 	if (ret < 0) {
 		if (ret == -ECONNRESET)
 			pr_info("connection reset by peer\n");
diff --git a/drivers/staging/vme/TODO b/drivers/staging/vme/TODO
index 82c222b4a146..79f00333e7ef 100644
--- a/drivers/staging/vme/TODO
+++ b/drivers/staging/vme/TODO
@@ -1,70 +1,5 @@
 				TODO
 				====
 
-API
-===
-
-Master window broadcast select mask
------------------------------------
-
-API currently provides no method to set or get Broadcast Select mask. Suggest
-somthing like:
-
-	int vme_master_bmsk_set (struct vme_resource *res, int mask);
-	int vme_master_bmsk_get (struct vme_resource *res, int *mask);
-
-
-Interrupt Generation
---------------------
-
-Add optional timeout when waiting for an IACK.
-
-
-CR/CSR Buffer
--------------
-
-The VME API provides no functions to access the buffer mapped into the CR/CSR
-space.
-
-
-Mailboxes
----------
-
-Whilst not part of the VME specification, they are provided by a number of
-chips. They are currently not supported at all by the API.
-
-
-Core
-====
-
-- Improve generic sanity checks (Such as does an offset and size fit within a
-  window and parameter checking).
-
-Bridge Support
-==============
-
-Tempe (tsi148)
---------------
-
-- 2eSST Broadcast mode.
-- Mailboxes unsupported.
-- Improve error detection.
-- Control of prefetch size, threshold.
-- Arbiter control
-- Requestor control
-
-Universe II (ca91c142)
-----------------------
-
-- Mailboxes unsupported.
-- Error Detection.
-- Control of prefetch size, threshold.
-- Arbiter control
-- Requestor control
-- Slot detection
-
-Universe I (ca91x042)
----------------------
-
-Currently completely unsupported.
+- Add one or more device drivers which use the VME framework.
 
diff --git a/drivers/staging/vme/bridges/vme_ca91cx42.c b/drivers/staging/vme/bridges/vme_ca91cx42.c
index 0e4feac138eb..515b8b8e32a8 100644
--- a/drivers/staging/vme/bridges/vme_ca91cx42.c
+++ b/drivers/staging/vme/bridges/vme_ca91cx42.c
@@ -338,7 +338,7 @@ static int ca91cx42_irq_generate(struct vme_bridge *ca91cx42_bridge, int level,
 
 static int ca91cx42_slave_set(struct vme_slave_resource *image, int enabled,
 	unsigned long long vme_base, unsigned long long size,
-	dma_addr_t pci_base, vme_address_t aspace, vme_cycle_t cycle)
+	dma_addr_t pci_base, u32 aspace, u32 cycle)
 {
 	unsigned int i, addr = 0, granularity;
 	unsigned int temp_ctl = 0;
@@ -444,7 +444,7 @@ static int ca91cx42_slave_set(struct vme_slave_resource *image, int enabled,
 
 static int ca91cx42_slave_get(struct vme_slave_resource *image, int *enabled,
 	unsigned long long *vme_base, unsigned long long *size,
-	dma_addr_t *pci_base, vme_address_t *aspace, vme_cycle_t *cycle)
+	dma_addr_t *pci_base, u32 *aspace, u32 *cycle)
 {
 	unsigned int i, granularity = 0, ctl = 0;
 	unsigned long long vme_bound, pci_offset;
@@ -595,8 +595,8 @@ static void ca91cx42_free_resource(struct vme_master_resource *image)
 
 
 static int ca91cx42_master_set(struct vme_master_resource *image, int enabled,
-	unsigned long long vme_base, unsigned long long size,
-	vme_address_t aspace, vme_cycle_t cycle, vme_width_t dwidth)
+	unsigned long long vme_base, unsigned long long size, u32 aspace,
+	u32 cycle, u32 dwidth)
 {
 	int retval = 0;
 	unsigned int i, granularity = 0;
@@ -753,7 +753,7 @@ err_window:
 
 static int __ca91cx42_master_get(struct vme_master_resource *image,
 	int *enabled, unsigned long long *vme_base, unsigned long long *size,
-	vme_address_t *aspace, vme_cycle_t *cycle, vme_width_t *dwidth)
+	u32 *aspace, u32 *cycle, u32 *dwidth)
 {
 	unsigned int i, ctl;
 	unsigned long long pci_base, pci_bound, vme_offset;
@@ -839,8 +839,8 @@ static int __ca91cx42_master_get(struct vme_master_resource *image,
 }
 
 static int ca91cx42_master_get(struct vme_master_resource *image, int *enabled,
-	unsigned long long *vme_base, unsigned long long *size,
-	vme_address_t *aspace, vme_cycle_t *cycle, vme_width_t *dwidth)
+	unsigned long long *vme_base, unsigned long long *size, u32 *aspace,
+	u32 *cycle, u32 *dwidth)
 {
 	int retval;
 
@@ -876,13 +876,13 @@ static ssize_t ca91cx42_master_read(struct vme_master_resource *image,
 	 * maximal configured data cycle is used and splits it
 	 * automatically for non-aligned addresses.
 	 */
-	if ((int)addr & 0x1) {
+	if ((uintptr_t)addr & 0x1) {
 		*(u8 *)buf = ioread8(addr);
 		done += 1;
 		if (done == count)
 			goto out;
 	}
-	if ((int)addr & 0x2) {
+	if ((uintptr_t)addr & 0x2) {
 		if ((count - done) < 2) {
 			*(u8 *)(buf + done) = ioread8(addr + done);
 			done += 1;
@@ -930,13 +930,13 @@ static ssize_t ca91cx42_master_write(struct vme_master_resource *image,
 	/* Here we apply for the same strategy we do in master_read
 	 * function in order to assure D16 cycle when required.
 	 */
-	if ((int)addr & 0x1) {
+	if ((uintptr_t)addr & 0x1) {
 		iowrite8(*(u8 *)buf, addr);
 		done += 1;
 		if (done == count)
 			goto out;
 	}
-	if ((int)addr & 0x2) {
+	if ((uintptr_t)addr & 0x2) {
 		if ((count - done) < 2) {
 			iowrite8(*(u8 *)(buf + done), addr + done);
 			done += 1;
@@ -973,7 +973,8 @@ static unsigned int ca91cx42_master_rmw(struct vme_master_resource *image,
 	unsigned int mask, unsigned int compare, unsigned int swap,
 	loff_t offset)
 {
-	u32 pci_addr, result;
+	u32 result;
+	uintptr_t pci_addr;
 	int i;
 	struct ca91cx42_driver *bridge;
 	struct device *dev;
@@ -990,7 +991,7 @@ static unsigned int ca91cx42_master_rmw(struct vme_master_resource *image,
 	/* Lock image */
 	spin_lock(&image->lock);
 
-	pci_addr = (u32)image->kern_base + offset;
+	pci_addr = (uintptr_t)image->kern_base + offset;
 
 	/* Address must be 4-byte aligned */
 	if (pci_addr & 0x3) {
@@ -1291,7 +1292,7 @@ static int ca91cx42_dma_list_empty(struct vme_dma_list *list)
  * callback is attached and disabled when the last callback is removed.
  */
 static int ca91cx42_lm_set(struct vme_lm_resource *lm,
-	unsigned long long lm_base, vme_address_t aspace, vme_cycle_t cycle)
+	unsigned long long lm_base, u32 aspace, u32 cycle)
 {
 	u32 temp_base, lm_ctl = 0;
 	int i;
@@ -1359,7 +1360,7 @@ static int ca91cx42_lm_set(struct vme_lm_resource *lm,
  * or disabled.
  */
 static int ca91cx42_lm_get(struct vme_lm_resource *lm,
-	unsigned long long *lm_base, vme_address_t *aspace, vme_cycle_t *cycle)
+	unsigned long long *lm_base, u32 *aspace, u32 *cycle)
 {
 	u32 lm_ctl, enabled = 0;
 	struct ca91cx42_driver *bridge;
diff --git a/drivers/staging/vme/bridges/vme_tsi148.c b/drivers/staging/vme/bridges/vme_tsi148.c
index 6c1167c2bea9..08a449b4abf9 100644
--- a/drivers/staging/vme/bridges/vme_tsi148.c
+++ b/drivers/staging/vme/bridges/vme_tsi148.c
@@ -483,7 +483,7 @@ static int tsi148_irq_generate(struct vme_bridge *tsi148_bridge, int level,
  * Find the first error in this address range
  */
 static struct vme_bus_error *tsi148_find_error(struct vme_bridge *tsi148_bridge,
-	vme_address_t aspace, unsigned long long address, size_t count)
+	u32 aspace, unsigned long long address, size_t count)
 {
 	struct list_head *err_pos;
 	struct vme_bus_error *vme_err, *valid = NULL;
@@ -517,7 +517,7 @@ static struct vme_bus_error *tsi148_find_error(struct vme_bridge *tsi148_bridge,
  * Clear errors in the provided address range.
  */
 static void tsi148_clear_errors(struct vme_bridge *tsi148_bridge,
-	vme_address_t aspace, unsigned long long address, size_t count)
+	u32 aspace, unsigned long long address, size_t count)
 {
 	struct list_head *err_pos, *temp;
 	struct vme_bus_error *vme_err;
@@ -551,7 +551,7 @@ static void tsi148_clear_errors(struct vme_bridge *tsi148_bridge,
  */
 static int tsi148_slave_set(struct vme_slave_resource *image, int enabled,
 	unsigned long long vme_base, unsigned long long size,
-	dma_addr_t pci_base, vme_address_t aspace, vme_cycle_t cycle)
+	dma_addr_t pci_base, u32 aspace, u32 cycle)
 {
 	unsigned int i, addr = 0, granularity = 0;
 	unsigned int temp_ctl = 0;
@@ -701,7 +701,7 @@ static int tsi148_slave_set(struct vme_slave_resource *image, int enabled,
  */
 static int tsi148_slave_get(struct vme_slave_resource *image, int *enabled,
 	unsigned long long *vme_base, unsigned long long *size,
-	dma_addr_t *pci_base, vme_address_t *aspace, vme_cycle_t *cycle)
+	dma_addr_t *pci_base, u32 *aspace, u32 *cycle)
 {
 	unsigned int i, granularity = 0, ctl = 0;
 	unsigned int vme_base_low, vme_base_high;
@@ -893,8 +893,8 @@ static void tsi148_free_resource(struct vme_master_resource *image)
  * Set the attributes of an outbound window.
  */
 static int tsi148_master_set(struct vme_master_resource *image, int enabled,
-	unsigned long long vme_base, unsigned long long size,
-	vme_address_t aspace, vme_cycle_t cycle, vme_width_t dwidth)
+	unsigned long long vme_base, unsigned long long size, u32 aspace,
+	u32 cycle, u32 dwidth)
 {
 	int retval = 0;
 	unsigned int i;
@@ -1129,8 +1129,8 @@ err_window:
  * XXX Not parsing prefetch information.
  */
 static int __tsi148_master_get(struct vme_master_resource *image, int *enabled,
-	unsigned long long *vme_base, unsigned long long *size,
-	vme_address_t *aspace, vme_cycle_t *cycle, vme_width_t *dwidth)
+	unsigned long long *vme_base, unsigned long long *size, u32 *aspace,
+	u32 *cycle, u32 *dwidth)
 {
 	unsigned int i, ctl;
 	unsigned int pci_base_low, pci_base_high;
@@ -1239,8 +1239,8 @@ static int __tsi148_master_get(struct vme_master_resource *image, int *enabled,
 
 
 static int tsi148_master_get(struct vme_master_resource *image, int *enabled,
-	unsigned long long *vme_base, unsigned long long *size,
-	vme_address_t *aspace, vme_cycle_t *cycle, vme_width_t *dwidth)
+	unsigned long long *vme_base, unsigned long long *size, u32 *aspace,
+	u32 *cycle, u32 *dwidth)
 {
 	int retval;
 
@@ -1259,9 +1259,7 @@ static ssize_t tsi148_master_read(struct vme_master_resource *image, void *buf,
 {
 	int retval, enabled;
 	unsigned long long vme_base, size;
-	vme_address_t aspace;
-	vme_cycle_t cycle;
-	vme_width_t dwidth;
+	u32 aspace, cycle, dwidth;
 	struct vme_bus_error *vme_err = NULL;
 	struct vme_bridge *tsi148_bridge;
 
@@ -1301,9 +1299,7 @@ static ssize_t tsi148_master_write(struct vme_master_resource *image, void *buf,
 {
 	int retval = 0, enabled;
 	unsigned long long vme_base, size;
-	vme_address_t aspace;
-	vme_cycle_t cycle;
-	vme_width_t dwidth;
+	u32 aspace, cycle, dwidth;
 
 	struct vme_bus_error *vme_err = NULL;
 	struct vme_bridge *tsi148_bridge;
@@ -1420,7 +1416,7 @@ static unsigned int tsi148_master_rmw(struct vme_master_resource *image,
 }
 
 static int tsi148_dma_set_vme_src_attributes(struct device *dev, u32 *attr,
-	vme_address_t aspace, vme_cycle_t cycle, vme_width_t dwidth)
+	u32 aspace, u32 cycle, u32 dwidth)
 {
 	/* Setup 2eSST speeds */
 	switch (cycle & (VME_2eSST160 | VME_2eSST267 | VME_2eSST320)) {
@@ -1514,7 +1510,7 @@ static int tsi148_dma_set_vme_src_attributes(struct device *dev, u32 *attr,
 }
 
 static int tsi148_dma_set_vme_dest_attributes(struct device *dev, u32 *attr,
-	vme_address_t aspace, vme_cycle_t cycle, vme_width_t dwidth)
+	u32 aspace, u32 cycle, u32 dwidth)
 {
 	/* Setup 2eSST speeds */
 	switch (cycle & (VME_2eSST160 | VME_2eSST267 | VME_2eSST320)) {
@@ -1886,7 +1882,7 @@ static int tsi148_dma_list_empty(struct vme_dma_list *list)
  * callback is attached and disabled when the last callback is removed.
  */
 static int tsi148_lm_set(struct vme_lm_resource *lm, unsigned long long lm_base,
-	vme_address_t aspace, vme_cycle_t cycle)
+	u32 aspace, u32 cycle)
 {
 	u32 lm_base_high, lm_base_low, lm_ctl = 0;
 	int i;
@@ -1953,7 +1949,7 @@ static int tsi148_lm_set(struct vme_lm_resource *lm, unsigned long long lm_base,
  * or disabled.
  */
 static int tsi148_lm_get(struct vme_lm_resource *lm,
-	unsigned long long *lm_base, vme_address_t *aspace, vme_cycle_t *cycle)
+	unsigned long long *lm_base, u32 *aspace, u32 *cycle)
 {
 	u32 lm_base_high, lm_base_low, lm_ctl, enabled = 0;
 	struct tsi148_driver *bridge;
diff --git a/drivers/staging/vme/devices/Kconfig b/drivers/staging/vme/devices/Kconfig
index ca5ba89e2d8c..55ec30cb1fa2 100644
--- a/drivers/staging/vme/devices/Kconfig
+++ b/drivers/staging/vme/devices/Kconfig
@@ -6,3 +6,16 @@ config VME_USER
 	  If you say Y here you want to be able to access a limited number of
 	  VME windows in a manner at least semi-compatible with the interface
 	  provided with the original driver at http://vmelinux.org/.
+
+config VME_PIO2
+	tristate "GE PIO2 VME"
+	depends on GPIOLIB
+	help
+	  Say Y here to include support for the GE PIO2. The PIO2 is a 6U VME
+	  slave card, implementing 32 solid-state relay switched IO lines, in
+	  4 groups of 8. Each bank of IO lines is built to function as input,
+	  output or both depending on the variant of the card.
+
+	  To compile this driver as a module, choose M here. The module will
+	  be called vme_pio2. If unsure, say N.
+
diff --git a/drivers/staging/vme/devices/Makefile b/drivers/staging/vme/devices/Makefile
index 459742a75283..172512cb5dbf 100644
--- a/drivers/staging/vme/devices/Makefile
+++ b/drivers/staging/vme/devices/Makefile
@@ -3,3 +3,6 @@
 #
 
 obj-$(CONFIG_VME_USER)		+= vme_user.o
+
+vme_pio2-objs	:= vme_pio2_cntr.o vme_pio2_gpio.o vme_pio2_core.o
+obj-$(CONFIG_VME_PIO2)         += vme_pio2.o
diff --git a/drivers/staging/vme/devices/vme_pio2.h b/drivers/staging/vme/devices/vme_pio2.h
new file mode 100644
index 000000000000..3c5931364535
--- /dev/null
+++ b/drivers/staging/vme/devices/vme_pio2.h
@@ -0,0 +1,249 @@
+#ifndef _VME_PIO2_H_
+#define _VME_PIO2_H_
+
+#define PIO2_CARDS_MAX			32
+
+#define PIO2_VARIANT_LENGTH		5
+
+#define PIO2_NUM_CHANNELS		32
+#define PIO2_NUM_IRQS			11
+#define PIO2_NUM_CNTRS			6
+
+#define PIO2_REGS_SIZE			0x40
+
+#define PIO2_REGS_DATA0			0x0
+#define PIO2_REGS_DATA1			0x1
+#define PIO2_REGS_DATA2			0x2
+#define PIO2_REGS_DATA3			0x3
+
+static const int PIO2_REGS_DATA[4] = { PIO2_REGS_DATA0, PIO2_REGS_DATA1,
+					PIO2_REGS_DATA2, PIO2_REGS_DATA3 };
+
+#define PIO2_REGS_INT_STAT0		0x8
+#define PIO2_REGS_INT_STAT1		0x9
+#define PIO2_REGS_INT_STAT2		0xa
+#define PIO2_REGS_INT_STAT3		0xb
+
+static const int PIO2_REGS_INT_STAT[4] = { PIO2_REGS_INT_STAT0,
+					PIO2_REGS_INT_STAT1,
+					PIO2_REGS_INT_STAT2,
+					PIO2_REGS_INT_STAT3 };
+
+#define PIO2_REGS_INT_STAT_CNTR		0xc
+#define PIO2_REGS_INT_MASK0		0x10
+#define PIO2_REGS_INT_MASK1		0x11
+#define PIO2_REGS_INT_MASK2		0x12
+#define PIO2_REGS_INT_MASK3		0x13
+#define PIO2_REGS_INT_MASK4		0x14
+#define PIO2_REGS_INT_MASK5		0x15
+#define PIO2_REGS_INT_MASK6		0x16
+#define PIO2_REGS_INT_MASK7		0x17
+
+static const int PIO2_REGS_INT_MASK[8] = { PIO2_REGS_INT_MASK0,
+					PIO2_REGS_INT_MASK1,
+					PIO2_REGS_INT_MASK2,
+					PIO2_REGS_INT_MASK3,
+					PIO2_REGS_INT_MASK4,
+					PIO2_REGS_INT_MASK5,
+					PIO2_REGS_INT_MASK6,
+					PIO2_REGS_INT_MASK7 };
+
+
+
+#define PIO2_REGS_CTRL			0x18
+#define PIO2_REGS_VME_VECTOR		0x19
+#define PIO2_REGS_CNTR0			0x20
+#define PIO2_REGS_CNTR1			0x22
+#define PIO2_REGS_CNTR2			0x24
+#define PIO2_REGS_CTRL_WRD0		0x26
+#define PIO2_REGS_CNTR3			0x28
+#define PIO2_REGS_CNTR4			0x2a
+#define PIO2_REGS_CNTR5			0x2c
+#define PIO2_REGS_CTRL_WRD1		0x2e
+
+#define PIO2_REGS_ID			0x30
+
+
+/* PIO2_REGS_DATAx (0x0 - 0x3) */
+
+static const int PIO2_CHANNEL_BANK[32] = { 0, 0, 0, 0, 0, 0, 0, 0,
+					1, 1, 1, 1, 1, 1, 1, 1,
+					2, 2, 2, 2, 2, 2, 2, 2,
+					3, 3, 3, 3, 3, 3, 3, 3 };
+
+#define PIO2_CHANNEL0_BIT		(1 << 0)
+#define PIO2_CHANNEL1_BIT		(1 << 1)
+#define PIO2_CHANNEL2_BIT		(1 << 2)
+#define PIO2_CHANNEL3_BIT		(1 << 3)
+#define PIO2_CHANNEL4_BIT		(1 << 4)
+#define PIO2_CHANNEL5_BIT		(1 << 5)
+#define PIO2_CHANNEL6_BIT		(1 << 6)
+#define PIO2_CHANNEL7_BIT		(1 << 7)
+#define PIO2_CHANNEL8_BIT		(1 << 0)
+#define PIO2_CHANNEL9_BIT		(1 << 1)
+#define PIO2_CHANNEL10_BIT		(1 << 2)
+#define PIO2_CHANNEL11_BIT		(1 << 3)
+#define PIO2_CHANNEL12_BIT		(1 << 4)
+#define PIO2_CHANNEL13_BIT		(1 << 5)
+#define PIO2_CHANNEL14_BIT		(1 << 6)
+#define PIO2_CHANNEL15_BIT		(1 << 7)
+#define PIO2_CHANNEL16_BIT		(1 << 0)
+#define PIO2_CHANNEL17_BIT		(1 << 1)
+#define PIO2_CHANNEL18_BIT		(1 << 2)
+#define PIO2_CHANNEL19_BIT		(1 << 3)
+#define PIO2_CHANNEL20_BIT		(1 << 4)
+#define PIO2_CHANNEL21_BIT		(1 << 5)
+#define PIO2_CHANNEL22_BIT		(1 << 6)
+#define PIO2_CHANNEL23_BIT		(1 << 7)
+#define PIO2_CHANNEL24_BIT		(1 << 0)
+#define PIO2_CHANNEL25_BIT		(1 << 1)
+#define PIO2_CHANNEL26_BIT		(1 << 2)
+#define PIO2_CHANNEL27_BIT		(1 << 3)
+#define PIO2_CHANNEL28_BIT		(1 << 4)
+#define PIO2_CHANNEL29_BIT		(1 << 5)
+#define PIO2_CHANNEL30_BIT		(1 << 6)
+#define PIO2_CHANNEL31_BIT		(1 << 7)
+
+static const int PIO2_CHANNEL_BIT[32] = { PIO2_CHANNEL0_BIT, PIO2_CHANNEL1_BIT,
+					PIO2_CHANNEL2_BIT, PIO2_CHANNEL3_BIT,
+					PIO2_CHANNEL4_BIT, PIO2_CHANNEL5_BIT,
+					PIO2_CHANNEL6_BIT, PIO2_CHANNEL7_BIT,
+					PIO2_CHANNEL8_BIT, PIO2_CHANNEL9_BIT,
+					PIO2_CHANNEL10_BIT, PIO2_CHANNEL11_BIT,
+					PIO2_CHANNEL12_BIT, PIO2_CHANNEL13_BIT,
+					PIO2_CHANNEL14_BIT, PIO2_CHANNEL15_BIT,
+					PIO2_CHANNEL16_BIT, PIO2_CHANNEL17_BIT,
+					PIO2_CHANNEL18_BIT, PIO2_CHANNEL19_BIT,
+					PIO2_CHANNEL20_BIT, PIO2_CHANNEL21_BIT,
+					PIO2_CHANNEL22_BIT, PIO2_CHANNEL23_BIT,
+					PIO2_CHANNEL24_BIT, PIO2_CHANNEL25_BIT,
+					PIO2_CHANNEL26_BIT, PIO2_CHANNEL27_BIT,
+					PIO2_CHANNEL28_BIT, PIO2_CHANNEL29_BIT,
+					PIO2_CHANNEL30_BIT, PIO2_CHANNEL31_BIT
+					};
+
+/* PIO2_REGS_INT_STAT_CNTR (0xc) */
+#define PIO2_COUNTER0			(1 << 0)
+#define PIO2_COUNTER1			(1 << 1)
+#define PIO2_COUNTER2			(1 << 2)
+#define PIO2_COUNTER3			(1 << 3)
+#define PIO2_COUNTER4			(1 << 4)
+#define PIO2_COUNTER5			(1 << 5)
+
+static const int PIO2_COUNTER[6] = { PIO2_COUNTER0, PIO2_COUNTER1,
+					PIO2_COUNTER2, PIO2_COUNTER3,
+					PIO2_COUNTER4, PIO2_COUNTER5 };
+
+/* PIO2_REGS_CTRL (0x18) */
+#define PIO2_VME_INT_MASK		0x7
+#define PIO2_LED			(1 << 6)
+#define PIO2_LOOP			(1 << 7)
+
+/* PIO2_REGS_VME_VECTOR (0x19) */
+#define PIO2_VME_VECTOR_SPUR		0x0
+#define PIO2_VME_VECTOR_BANK0		0x1
+#define PIO2_VME_VECTOR_BANK1		0x2
+#define PIO2_VME_VECTOR_BANK2		0x3
+#define PIO2_VME_VECTOR_BANK3		0x4
+#define PIO2_VME_VECTOR_CNTR0		0x5
+#define PIO2_VME_VECTOR_CNTR1		0x6
+#define PIO2_VME_VECTOR_CNTR2		0x7
+#define PIO2_VME_VECTOR_CNTR3		0x8
+#define PIO2_VME_VECTOR_CNTR4		0x9
+#define PIO2_VME_VECTOR_CNTR5		0xa
+
+#define PIO2_VME_VECTOR_MASK		0xf0
+
+static const int PIO2_VECTOR_BANK[4] = { PIO2_VME_VECTOR_BANK0,
+					PIO2_VME_VECTOR_BANK1,
+					PIO2_VME_VECTOR_BANK2,
+					PIO2_VME_VECTOR_BANK3 };
+
+static const int PIO2_VECTOR_CNTR[6] = { PIO2_VME_VECTOR_CNTR0,
+					PIO2_VME_VECTOR_CNTR1,
+					PIO2_VME_VECTOR_CNTR2,
+					PIO2_VME_VECTOR_CNTR3,
+					PIO2_VME_VECTOR_CNTR4,
+					PIO2_VME_VECTOR_CNTR5 };
+
+/* PIO2_REGS_CNTRx (0x20 - 0x24 & 0x28 - 0x2c) */
+
+static const int PIO2_CNTR_DATA[6] = { PIO2_REGS_CNTR0, PIO2_REGS_CNTR1,
+					PIO2_REGS_CNTR2, PIO2_REGS_CNTR3,
+					PIO2_REGS_CNTR4, PIO2_REGS_CNTR5 };
+
+/* PIO2_REGS_CTRL_WRDx (0x26 & 0x2e) */
+
+static const int PIO2_CNTR_CTRL[6] = { PIO2_REGS_CTRL_WRD0,
+					PIO2_REGS_CTRL_WRD0,
+					PIO2_REGS_CTRL_WRD0,
+					PIO2_REGS_CTRL_WRD1,
+					PIO2_REGS_CTRL_WRD1,
+					PIO2_REGS_CTRL_WRD1 };
+
+#define PIO2_CNTR_SC_DEV0		0
+#define PIO2_CNTR_SC_DEV1		(1 << 6)
+#define PIO2_CNTR_SC_DEV2		(2 << 6)
+#define PIO2_CNTR_SC_RDBACK		(3 << 6)
+
+static const int PIO2_CNTR_SC_DEV[6] = { PIO2_CNTR_SC_DEV0, PIO2_CNTR_SC_DEV1,
+					PIO2_CNTR_SC_DEV2, PIO2_CNTR_SC_DEV0,
+					PIO2_CNTR_SC_DEV1, PIO2_CNTR_SC_DEV2 };
+
+#define PIO2_CNTR_RW_LATCH		0
+#define PIO2_CNTR_RW_LSB		(1 << 4)
+#define PIO2_CNTR_RW_MSB		(2 << 4)
+#define PIO2_CNTR_RW_BOTH		(3 << 4)
+
+#define PIO2_CNTR_MODE0			0
+#define PIO2_CNTR_MODE1			(1 << 1)
+#define PIO2_CNTR_MODE2			(2 << 1)
+#define PIO2_CNTR_MODE3			(3 << 1)
+#define PIO2_CNTR_MODE4			(4 << 1)
+#define PIO2_CNTR_MODE5			(5 << 1)
+
+#define PIO2_CNTR_BCD			1
+
+
+
+enum pio2_bank_config { NOFIT, INPUT, OUTPUT, BOTH };
+enum pio2_int_config { NONE = 0, LOW2HIGH = 1, HIGH2LOW = 2, EITHER = 4 };
+
+/* Bank configuration structure */
+struct pio2_io_bank {
+	enum pio2_bank_config config;
+	u8 value;
+	enum pio2_int_config irq[8];
+};
+
+/* Counter configuration structure */
+struct pio2_cntr {
+	int mode;
+	int count;
+};
+
+struct pio2_card {
+	int id;
+	int bus;
+	long base;
+	int irq_vector;
+	int irq_level;
+	char variant[6];
+	int led;
+
+	struct vme_dev *vdev;
+	struct vme_resource *window;
+
+	struct gpio_chip gc;
+	struct pio2_io_bank bank[4];
+
+	struct pio2_cntr cntr[6];
+};
+
+int pio2_cntr_reset(struct pio2_card *);
+
+int pio2_gpio_reset(struct pio2_card *);
+int __init pio2_gpio_init(struct pio2_card *);
+void __exit pio2_gpio_exit(struct pio2_card *);
+
+#endif /* _VME_PIO2_H_ */
diff --git a/drivers/staging/vme/devices/vme_pio2_cntr.c b/drivers/staging/vme/devices/vme_pio2_cntr.c
new file mode 100644
index 000000000000..08e0d59806ca
--- /dev/null
+++ b/drivers/staging/vme/devices/vme_pio2_cntr.c
@@ -0,0 +1,71 @@
+/*
+ * GE PIO2 Counter Driver
+ *
+ * Author: Martyn Welch <martyn.welch@ge.com>
+ * Copyright 2009 GE Intelligent Platforms Embedded Systems, Inc.
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ * The PIO-2 has 6 counters, currently this code just disables the interrupts
+ * and leaves them alone.
+ *
+ */
+
+#include <linux/device.h>
+#include <linux/types.h>
+#include <linux/gpio.h>
+
+#include "../vme.h"
+#include "vme_pio2.h"
+
+static int pio2_cntr_irq_set(struct pio2_card *card, int id)
+{
+	int retval;
+	u8 data;
+
+	data = PIO2_CNTR_SC_DEV[id] | PIO2_CNTR_RW_BOTH | card->cntr[id].mode;
+	retval = vme_master_write(card->window, &data, 1, PIO2_CNTR_CTRL[id]);
+	if (retval < 0)
+		return retval;
+
+	data = card->cntr[id].count & 0xFF;
+	retval = vme_master_write(card->window, &data, 1, PIO2_CNTR_DATA[id]);
+	if (retval < 0)
+		return retval;
+
+	data = (card->cntr[id].count >> 8) & 0xFF;
+	retval = vme_master_write(card->window, &data, 1, PIO2_CNTR_DATA[id]);
+	if (retval < 0)
+		return retval;
+
+	return 0;
+}
+
+int pio2_cntr_reset(struct pio2_card *card)
+{
+	int i, retval = 0;
+	u8 reg;
+
+	/* Clear down all timers */
+	for (i = 0; i < 6; i++) {
+		card->cntr[i].mode = PIO2_CNTR_MODE5;
+		card->cntr[i].count = 0;
+		retval = pio2_cntr_irq_set(card, i);
+		if (retval < 0)
+			return retval;
+	}
+
+	/* Ensure all counter interrupts are cleared */
+	do {
+		retval = vme_master_read(card->window, &reg, 1,
+			PIO2_REGS_INT_STAT_CNTR);
+		if (retval < 0)
+			return retval;
+	} while (reg != 0);
+
+	return retval;
+}
+
diff --git a/drivers/staging/vme/devices/vme_pio2_core.c b/drivers/staging/vme/devices/vme_pio2_core.c
new file mode 100644
index 000000000000..9fedc442a779
--- /dev/null
+++ b/drivers/staging/vme/devices/vme_pio2_core.c
@@ -0,0 +1,524 @@
+/*
+ * GE PIO2 6U VME I/O Driver
+ *
+ * Author: Martyn Welch <martyn.welch@ge.com>
+ * Copyright 2009 GE Intelligent Platforms Embedded Systems, Inc.
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/version.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/device.h>
+#include <linux/ctype.h>
+#include <linux/gpio.h>
+#include <linux/slab.h>
+
+#include "../vme.h"
+#include "vme_pio2.h"
+
+
+static const char driver_name[] = "pio2";
+
+static int bus[PIO2_CARDS_MAX];
+static int bus_num;
+static long base[PIO2_CARDS_MAX];
+static int base_num;
+static int vector[PIO2_CARDS_MAX];
+static int vector_num;
+static int level[PIO2_CARDS_MAX];
+static int level_num;
+static const char *variant[PIO2_CARDS_MAX];
+static int variant_num;
+
+static int loopback;
+
+static int pio2_match(struct vme_dev *);
+static int __devinit pio2_probe(struct vme_dev *);
+static int __devexit pio2_remove(struct vme_dev *);
+
+static int pio2_get_led(struct pio2_card *card)
+{
+	/* Can't read hardware, state saved in structure */
+	return card->led;
+}
+
+static int pio2_set_led(struct pio2_card *card, int state)
+{
+	u8 reg;
+	int retval;
+
+	reg = card->irq_level;
+
+	/* Register state inverse of led state */
+	if (!state)
+		reg |= PIO2_LED;
+
+	if (loopback)
+		reg |= PIO2_LOOP;
+
+	retval = vme_master_write(card->window, &reg, 1, PIO2_REGS_CTRL);
+	if (retval < 0)
+		return retval;
+
+	card->led = state ? 1 : 0;
+
+	return 0;
+}
+
+static void pio2_int(int level, int vector, void *ptr)
+{
+	int vec, i, channel, retval;
+	u8 reg;
+	struct pio2_card *card  = ptr;
+
+	vec = vector & ~PIO2_VME_VECTOR_MASK;
+
+	switch (vec) {
+	case 0:
+		dev_warn(&card->vdev->dev, "Spurious Interrupt\n");
+		break;
+	case 1:
+	case 2:
+	case 3:
+	case 4:
+		/* Channels 0 to 7 */
+		retval = vme_master_read(card->window, &reg, 1,
+			PIO2_REGS_INT_STAT[vec - 1]);
+		if (retval < 0) {
+			dev_err(&card->vdev->dev,
+				"Unable to read IRQ status register\n");
+			return;
+		}
+		for (i = 0; i < 8; i++) {
+			channel = ((vec - 1) * 8) + i;
+			if (reg & PIO2_CHANNEL_BIT[channel])
+				dev_info(&card->vdev->dev,
+					"Interrupt on I/O channel %d\n",
+					channel);
+		}
+		break;
+	case 5:
+	case 6:
+	case 7:
+	case 8:
+	case 9:
+	case 10:
+		/* Counters are dealt with by their own handler */
+		dev_err(&card->vdev->dev,
+			"Counter interrupt\n");
+		break;
+	}
+}
+
+
+/*
+ * We return whether this has been successful - this is used in the probe to
+ * ensure we have a valid card.
+ */
+static int pio2_reset_card(struct pio2_card *card)
+{
+	int retval = 0;
+	u8 data = 0;
+
+	/* Clear main register*/
+	retval = vme_master_write(card->window, &data, 1, PIO2_REGS_CTRL);
+	if (retval < 0)
+		return retval;
+
+	/* Clear VME vector */
+	retval = vme_master_write(card->window, &data, 1, PIO2_REGS_VME_VECTOR);
+	if (retval < 0)
+		return retval;
+
+	/* Reset GPIO */
+	retval = pio2_gpio_reset(card);
+	if (retval < 0)
+		return retval;
+
+	/* Reset counters */
+	retval = pio2_cntr_reset(card);
+	if (retval < 0)
+		return retval;
+
+	return 0;
+}
+
+static struct vme_driver pio2_driver = {
+	.name = driver_name,
+	.match = pio2_match,
+	.probe = pio2_probe,
+	.remove = __devexit_p(pio2_remove),
+};
+
+
+static int __init pio2_init(void)
+{
+	int retval = 0;
+
+	if (bus_num == 0) {
+		printk(KERN_ERR "%s: No cards, skipping registration\n",
+			driver_name);
+		goto err_nocard;
+	}
+
+	if (bus_num > PIO2_CARDS_MAX) {
+		printk(KERN_ERR
+			"%s: Driver only able to handle %d PIO2 Cards\n",
+			driver_name, PIO2_CARDS_MAX);
+		bus_num = PIO2_CARDS_MAX;
+	}
+
+	/* Register the PIO2 driver */
+	retval = vme_register_driver(&pio2_driver, bus_num);
+	if (retval != 0)
+		goto err_reg;
+
+	return retval;
+
+err_reg:
+err_nocard:
+	return retval;
+}
+
+static int pio2_match(struct vme_dev *vdev)
+{
+
+	if (vdev->num >= bus_num) {
+		dev_err(&vdev->dev,
+			"The enumeration of the VMEbus to which the board is connected must be specified");
+		return 0;
+	}
+
+	if (vdev->num >= base_num) {
+		dev_err(&vdev->dev,
+			"The VME address for the cards registers must be specified");
+		return 0;
+	}
+
+	if (vdev->num >= vector_num) {
+		dev_err(&vdev->dev,
+			"The IRQ vector used by the card must be specified");
+		return 0;
+	}
+
+	if (vdev->num >= level_num) {
+		dev_err(&vdev->dev,
+			"The IRQ level used by the card must be specified");
+		return 0;
+	}
+
+	if (vdev->num >= variant_num) {
+		dev_err(&vdev->dev, "The variant of the card must be specified");
+		return 0;
+	}
+
+	return 1;
+}
+
+static int __devinit pio2_probe(struct vme_dev *vdev)
+{
+	struct pio2_card *card;
+	int retval;
+	int i;
+	u8 reg;
+	int vec;
+
+	card = kzalloc(sizeof(struct pio2_card), GFP_KERNEL);
+	if (card == NULL) {
+		dev_err(&vdev->dev, "Unable to allocate card structure\n");
+		retval = -ENOMEM;
+		goto err_struct;
+	}
+
+	card->id = vdev->num;
+	card->bus = bus[card->id];
+	card->base = base[card->id];
+	card->irq_vector = vector[card->id];
+	card->irq_level = level[card->id] & PIO2_VME_INT_MASK;
+	strncpy(card->variant, variant[card->id], PIO2_VARIANT_LENGTH);
+	card->vdev = vdev;
+
+	for (i = 0; i < PIO2_VARIANT_LENGTH; i++) {
+
+		if (isdigit(card->variant[i]) == 0) {
+			dev_err(&card->vdev->dev, "Variant invalid\n");
+			retval = -EINVAL;
+			goto err_variant;
+		}
+	}
+
+	/*
+	 * Bottom 4 bits of VME interrupt vector used to determine source,
+	 * provided vector should only use upper 4 bits.
+	 */
+	if (card->irq_vector & ~PIO2_VME_VECTOR_MASK) {
+		dev_err(&card->vdev->dev,
+			"Invalid VME IRQ Vector, vector must not use lower 4 bits\n");
+		retval = -EINVAL;
+		goto err_vector;
+	}
+
+	/*
+	 * There is no way to determine the build variant or whether each bank
+	 * is input, output or both at run time. The inputs are also inverted
+	 * if configured as both.
+	 *
+	 * We pass in the board variant and use that to determine the
+	 * configuration of the banks.
+	 */
+	for (i = 1; i < PIO2_VARIANT_LENGTH; i++) {
+		switch (card->variant[i]) {
+		case '0':
+			card->bank[i-1].config = NOFIT;
+			break;
+		case '1':
+		case '2':
+		case '3':
+		case '4':
+			card->bank[i-1].config = INPUT;
+			break;
+		case '5':
+			card->bank[i-1].config = OUTPUT;
+			break;
+		case '6':
+		case '7':
+		case '8':
+		case '9':
+			card->bank[i-1].config = BOTH;
+			break;
+		}
+	}
+
+	/* Get a master window and position over regs */
+	card->window = vme_master_request(vdev, VME_A24, VME_SCT, VME_D16);
+	if (card->window == NULL) {
+		dev_err(&card->vdev->dev,
+			"Unable to assign VME master resource\n");
+		retval = -EIO;
+		goto err_window;
+	}
+
+	retval = vme_master_set(card->window, 1, card->base, 0x10000, VME_A24,
+		(VME_SCT | VME_USER | VME_DATA), VME_D16);
+	if (retval) {
+		dev_err(&card->vdev->dev,
+			"Unable to configure VME master resource\n");
+		goto err_set;
+	}
+
+	/*
+	 * There is also no obvious register which we can probe to determine
+	 * whether the provided base is valid. If we can read the "ID Register"
+	 * offset and the reset function doesn't error, assume we have a valid
+	 * location.
+	 */
+	retval = vme_master_read(card->window, &reg, 1, PIO2_REGS_ID);
+	if (retval < 0) {
+		dev_err(&card->vdev->dev, "Unable to read from device\n");
+		goto err_read;
+	}
+
+	dev_dbg(&card->vdev->dev, "ID Register:%x\n", reg);
+
+	/*
+	 * Ensure all the I/O is cleared. We can't read back the states, so
+	 * this is the only method we have to ensure that the I/O is in a known
+	 * state.
+	 */
+	retval = pio2_reset_card(card);
+	if (retval) {
+		dev_err(&card->vdev->dev,
+			"Failed to reset card, is location valid?");
+		retval = -ENODEV;
+		goto err_reset;
+	}
+
+	/* Configure VME Interrupts */
+	reg = card->irq_level;
+	if (pio2_get_led(card))
+		reg |= PIO2_LED;
+	if (loopback)
+		reg |= PIO2_LOOP;
+	retval = vme_master_write(card->window, &reg, 1, PIO2_REGS_CTRL);
+	if (retval < 0)
+		return retval;
+
+	/* Set VME vector */
+	retval = vme_master_write(card->window, &card->irq_vector, 1,
+		PIO2_REGS_VME_VECTOR);
+	if (retval < 0)
+		return retval;
+
+	/* Attach spurious interrupt handler. */
+	vec = card->irq_vector | PIO2_VME_VECTOR_SPUR;
+
+	retval = vme_irq_request(vdev, card->irq_level, vec,
+		&pio2_int, (void *)card);
+	if (retval < 0) {
+		dev_err(&card->vdev->dev,
+			"Unable to attach VME interrupt vector0x%x, level 0x%x\n",
+			 vec, card->irq_level);
+		goto err_irq;
+	}
+
+	/* Attach GPIO interrupt handlers. */
+	for (i = 0; i < 4; i++) {
+		vec = card->irq_vector | PIO2_VECTOR_BANK[i];
+
+		retval = vme_irq_request(vdev, card->irq_level, vec,
+			&pio2_int, (void *)card);
+		if (retval < 0) {
+			dev_err(&card->vdev->dev,
+				"Unable to attach VME interrupt vector0x%x, level 0x%x\n",
+				 vec, card->irq_level);
+			goto err_gpio_irq;
+		}
+	}
+
+	/* Attach counter interrupt handlers. */
+	for (i = 0; i < 6; i++) {
+		vec = card->irq_vector | PIO2_VECTOR_CNTR[i];
+
+		retval = vme_irq_request(vdev, card->irq_level, vec,
+			&pio2_int, (void *)card);
+		if (retval < 0) {
+			dev_err(&card->vdev->dev,
+				"Unable to attach VME interrupt vector0x%x, level 0x%x\n",
+				vec, card->irq_level);
+			goto err_cntr_irq;
+		}
+	}
+
+	/* Register IO */
+	retval = pio2_gpio_init(card);
+	if (retval < 0) {
+		dev_err(&card->vdev->dev,
+			"Unable to register with GPIO framework\n");
+		goto err_gpio;
+	}
+
+	/* Set LED - This also sets interrupt level */
+	retval = pio2_set_led(card, 0);
+	if (retval < 0) {
+		dev_err(&card->vdev->dev, "Unable to set LED\n");
+		goto err_led;
+	}
+
+	dev_set_drvdata(&card->vdev->dev, card);
+
+	dev_info(&card->vdev->dev,
+		"PIO2 (variant %s) configured at 0x%lx\n", card->variant,
+		card->base);
+
+	return 0;
+
+err_led:
+	pio2_gpio_exit(card);
+err_gpio:
+	i = 6;
+err_cntr_irq:
+	while (i > 0) {
+		i--;
+		vec = card->irq_vector | PIO2_VECTOR_CNTR[i];
+		vme_irq_free(vdev, card->irq_level, vec);
+	}
+
+	i = 4;
+err_gpio_irq:
+	while (i > 0) {
+		i--;
+		vec = card->irq_vector | PIO2_VECTOR_BANK[i];
+		vme_irq_free(vdev, card->irq_level, vec);
+	}
+
+	vec = (card->irq_vector & PIO2_VME_VECTOR_MASK) | PIO2_VME_VECTOR_SPUR;
+	vme_irq_free(vdev, card->irq_level, vec);
+err_irq:
+	 pio2_reset_card(card);
+err_reset:
+err_read:
+	vme_master_set(card->window, 0, 0, 0, VME_A16, 0, VME_D16);
+err_set:
+	vme_master_free(card->window);
+err_window:
+err_vector:
+err_variant:
+	kfree(card);
+err_struct:
+	return retval;
+}
+
+static int __devexit pio2_remove(struct vme_dev *vdev)
+{
+	int vec;
+	int i;
+
+	struct pio2_card *card = dev_get_drvdata(&vdev->dev);
+
+	pio2_gpio_exit(card);
+
+	for (i = 0; i < 6; i++) {
+		vec = card->irq_vector | PIO2_VECTOR_CNTR[i];
+		vme_irq_free(vdev, card->irq_level, vec);
+	}
+
+	for (i = 0; i < 4; i++) {
+		vec = card->irq_vector | PIO2_VECTOR_BANK[i];
+		vme_irq_free(vdev, card->irq_level, vec);
+	}
+
+	vec = (card->irq_vector & PIO2_VME_VECTOR_MASK) | PIO2_VME_VECTOR_SPUR;
+	vme_irq_free(vdev, card->irq_level, vec);
+
+	pio2_reset_card(card);
+
+	vme_master_set(card->window, 0, 0, 0, VME_A16, 0, VME_D16);
+
+	vme_master_free(card->window);
+
+	kfree(card);
+
+	return 0;
+}
+
+static void __exit pio2_exit(void)
+{
+	vme_unregister_driver(&pio2_driver);
+}
+
+
+/* These are required for each board */
+MODULE_PARM_DESC(bus, "Enumeration of VMEbus to which the board is connected");
+module_param_array(bus, int, &bus_num, S_IRUGO);
+
+MODULE_PARM_DESC(base, "Base VME address for PIO2 Registers");
+module_param_array(base, long, &base_num, S_IRUGO);
+
+MODULE_PARM_DESC(vector, "VME IRQ Vector (Lower 4 bits masked)");
+module_param_array(vector, int, &vector_num, S_IRUGO);
+
+MODULE_PARM_DESC(level, "VME IRQ Level");
+module_param_array(level, int, &level_num, S_IRUGO);
+
+MODULE_PARM_DESC(variant, "Last 4 characters of PIO2 board variant");
+module_param_array(variant, charp, &variant_num, S_IRUGO);
+
+/* This is for debugging */
+MODULE_PARM_DESC(loopback, "Enable loopback mode on all cards");
+module_param(loopback, bool, S_IRUGO);
+
+MODULE_DESCRIPTION("GE PIO2 6U VME I/O Driver");
+MODULE_AUTHOR("Martyn Welch <martyn.welch@ge.com");
+MODULE_LICENSE("GPL");
+
+module_init(pio2_init);
+module_exit(pio2_exit);
+
diff --git a/drivers/staging/vme/devices/vme_pio2_gpio.c b/drivers/staging/vme/devices/vme_pio2_gpio.c
new file mode 100644
index 000000000000..dc837deb99dd
--- /dev/null
+++ b/drivers/staging/vme/devices/vme_pio2_gpio.c
@@ -0,0 +1,232 @@
+/*
+ * GE PIO2 GPIO Driver
+ *
+ * Author: Martyn Welch <martyn.welch@ge.com>
+ * Copyright 2009 GE Intelligent Platforms Embedded Systems, Inc.
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/version.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/ctype.h>
+#include <linux/gpio.h>
+#include <linux/slab.h>
+
+#include "../vme.h"
+#include "vme_pio2.h"
+
+static const char driver_name[] = "pio2_gpio";
+
+static struct pio2_card *gpio_to_pio2_card(struct gpio_chip *chip)
+{
+	return container_of(chip, struct pio2_card, gc);
+}
+
+static int pio2_gpio_get(struct gpio_chip *chip, unsigned int offset)
+{
+	u8 reg;
+	int retval;
+	struct pio2_card *card = gpio_to_pio2_card(chip);
+
+	if ((card->bank[PIO2_CHANNEL_BANK[offset]].config == OUTPUT) |
+		(card->bank[PIO2_CHANNEL_BANK[offset]].config == NOFIT)) {
+
+		dev_err(&card->vdev->dev, "Channel not available as input\n");
+		return 0;
+	}
+
+	retval = vme_master_read(card->window, &reg, 1,
+		PIO2_REGS_DATA[PIO2_CHANNEL_BANK[offset]]);
+	if (retval < 0) {
+		dev_err(&card->vdev->dev, "Unable to read from GPIO\n");
+		return 0;
+	}
+
+	/*
+	 * Remember, input on channels configured as both input and output
+	 * are inverted!
+	 */
+	if (reg & PIO2_CHANNEL_BIT[offset]) {
+		if (card->bank[PIO2_CHANNEL_BANK[offset]].config != BOTH)
+			return 0;
+		else
+			return 1;
+	} else {
+		if (card->bank[PIO2_CHANNEL_BANK[offset]].config != BOTH)
+			return 1;
+		else
+			return 0;
+	}
+}
+
+static void pio2_gpio_set(struct gpio_chip *chip, unsigned int offset,
+	int value)
+{
+	u8 reg;
+	int retval;
+	struct pio2_card *card = gpio_to_pio2_card(chip);
+
+	if ((card->bank[PIO2_CHANNEL_BANK[offset]].config == INPUT) |
+		(card->bank[PIO2_CHANNEL_BANK[offset]].config == NOFIT)) {
+
+		dev_err(&card->vdev->dev, "Channel not availabe as output\n");
+		return;
+	}
+
+	if (value)
+		reg = card->bank[PIO2_CHANNEL_BANK[offset]].value |
+			PIO2_CHANNEL_BIT[offset];
+	else
+		reg = card->bank[PIO2_CHANNEL_BANK[offset]].value &
+			~PIO2_CHANNEL_BIT[offset];
+
+	retval = vme_master_write(card->window, &reg, 1,
+		PIO2_REGS_DATA[PIO2_CHANNEL_BANK[offset]]);
+	if (retval < 0) {
+		dev_err(&card->vdev->dev, "Unable to write to GPIO\n");
+		return;
+	}
+
+	card->bank[PIO2_CHANNEL_BANK[offset]].value = reg;
+}
+
+/* Directionality configured at board build - send appropriate response */
+static int pio2_gpio_dir_in(struct gpio_chip *chip, unsigned offset)
+{
+	int data;
+	struct pio2_card *card = gpio_to_pio2_card(chip);
+
+	if ((card->bank[PIO2_CHANNEL_BANK[offset]].config == OUTPUT) |
+		(card->bank[PIO2_CHANNEL_BANK[offset]].config == NOFIT)) {
+		dev_err(&card->vdev->dev,
+			"Channel directionality not configurable at runtine\n");
+
+		data = -EINVAL;
+	} else {
+		data = 0;
+	}
+
+	return data;
+}
+
+/* Directionality configured at board build - send appropriate response */
+static int pio2_gpio_dir_out(struct gpio_chip *chip, unsigned offset, int value)
+{
+	int data;
+	struct pio2_card *card = gpio_to_pio2_card(chip);
+
+	if ((card->bank[PIO2_CHANNEL_BANK[offset]].config == INPUT) |
+		(card->bank[PIO2_CHANNEL_BANK[offset]].config == NOFIT)) {
+		dev_err(&card->vdev->dev,
+			"Channel directionality not configurable at runtine\n");
+
+		data = -EINVAL;
+	} else {
+		data = 0;
+	}
+
+	return data;
+}
+
+/*
+ * We return whether this has been successful - this is used in the probe to
+ * ensure we have a valid card.
+ */
+int pio2_gpio_reset(struct pio2_card *card)
+{
+	int retval = 0;
+	int i, j;
+
+	u8 data = 0;
+
+	/* Zero output registers */
+	for (i = 0; i < 4; i++) {
+		retval = vme_master_write(card->window, &data, 1,
+			PIO2_REGS_DATA[i]);
+		if (retval < 0)
+			return retval;
+		card->bank[i].value = 0;
+	}
+
+	/* Set input interrupt masks */
+	for (i = 0; i < 4; i++) {
+		retval = vme_master_write(card->window, &data, 1,
+			PIO2_REGS_INT_MASK[i * 2]);
+		if (retval < 0)
+			return retval;
+
+		retval = vme_master_write(card->window, &data, 1,
+			PIO2_REGS_INT_MASK[(i * 2) + 1]);
+		if (retval < 0)
+			return retval;
+
+		for (j = 0; j < 8; j++)
+			card->bank[i].irq[j] = NONE;
+	}
+
+	/* Ensure all I/O interrupts are cleared */
+	for (i = 0; i < 4; i++) {
+		do {
+			retval = vme_master_read(card->window, &data, 1,
+				PIO2_REGS_INT_STAT[i]);
+			if (retval < 0)
+				return retval;
+		} while (data != 0);
+	}
+
+	return 0;
+}
+
+int __init pio2_gpio_init(struct pio2_card *card)
+{
+	int retval = 0;
+	char *label;
+
+	label = kmalloc(PIO2_NUM_CHANNELS, GFP_KERNEL);
+	if (label == NULL) {
+		dev_err(&card->vdev->dev, "Unable to allocate GPIO label\n");
+		return -ENOMEM;
+	}
+
+	sprintf(label, "%s@%s", driver_name, dev_name(&card->vdev->dev));
+	card->gc.label = label;
+
+	card->gc.ngpio = PIO2_NUM_CHANNELS;
+	/* Dynamic allocation of base */
+	card->gc.base = -1;
+	/* Setup pointers to chip functions */
+	card->gc.direction_input = pio2_gpio_dir_in;
+	card->gc.direction_output = pio2_gpio_dir_out;
+	card->gc.get = pio2_gpio_get;
+	card->gc.set = pio2_gpio_set;
+
+	/* This function adds a memory mapped GPIO chip */
+	retval = gpiochip_add(&(card->gc));
+	if (retval) {
+		dev_err(&card->vdev->dev, "Unable to register GPIO\n");
+		kfree(card->gc.label);
+	}
+
+	return retval;
+};
+
+void __exit pio2_gpio_exit(struct pio2_card *card)
+{
+	const char *label = card->gc.label;
+
+	if (gpiochip_remove(&(card->gc)))
+		dev_err(&card->vdev->dev, "Failed to remove GPIO");
+
+	kfree(label);
+}
+
diff --git a/drivers/staging/vme/devices/vme_user.h b/drivers/staging/vme/devices/vme_user.h
index d85a1e9dbe3a..7d24cd6343e4 100644
--- a/drivers/staging/vme/devices/vme_user.h
+++ b/drivers/staging/vme/devices/vme_user.h
@@ -10,9 +10,9 @@ struct vme_master {
 	int enable;			/* State of Window */
 	unsigned long long vme_addr;	/* Starting Address on the VMEbus */
 	unsigned long long size;	/* Window Size */
-	vme_address_t aspace;		/* Address Space */
-	vme_cycle_t cycle;		/* Cycle properties */
-	vme_width_t dwidth;		/* Maximum Data Width */
+	u32 aspace;			/* Address Space */
+	u32 cycle;		/* Cycle properties */
+	u32 dwidth;		/* Maximum Data Width */
 #if 0
 	char prefetchEnable;		/* Prefetch Read Enable State */
 	int prefetchSize;		/* Prefetch Read Size (Cache Lines) */
@@ -34,8 +34,8 @@ struct vme_slave {
 	int enable;			/* State of Window */
 	unsigned long long vme_addr;	/* Starting Address on the VMEbus */
 	unsigned long long size;	/* Window Size */
-	vme_address_t aspace;		/* Address Space */
-	vme_cycle_t cycle;		/* Cycle properties */
+	u32 aspace;			/* Address Space */
+	u32 cycle;		/* Cycle properties */
 #if 0
 	char wrPostEnable;		/* Write Post State */
 	char rmwLock;			/* Lock PCI during RMW Cycles */
diff --git a/drivers/staging/vme/vme.c b/drivers/staging/vme/vme.c
index b04b4688f705..70722ae52321 100644
--- a/drivers/staging/vme/vme.c
+++ b/drivers/staging/vme/vme.c
@@ -153,9 +153,7 @@ size_t vme_get_size(struct vme_resource *resource)
 	int enabled, retval;
 	unsigned long long base, size;
 	dma_addr_t buf_base;
-	vme_address_t aspace;
-	vme_cycle_t cycle;
-	vme_width_t dwidth;
+	u32 aspace, cycle, dwidth;
 
 	switch (resource->type) {
 	case VME_MASTER:
@@ -181,7 +179,7 @@ size_t vme_get_size(struct vme_resource *resource)
 }
 EXPORT_SYMBOL(vme_get_size);
 
-static int vme_check_window(vme_address_t aspace, unsigned long long vme_base,
+static int vme_check_window(u32 aspace, unsigned long long vme_base,
 	unsigned long long size)
 {
 	int retval = 0;
@@ -232,8 +230,8 @@ static int vme_check_window(vme_address_t aspace, unsigned long long vme_base,
  * Request a slave image with specific attributes, return some unique
  * identifier.
  */
-struct vme_resource *vme_slave_request(struct vme_dev *vdev,
-	vme_address_t address, vme_cycle_t cycle)
+struct vme_resource *vme_slave_request(struct vme_dev *vdev, u32 address,
+	u32 cycle)
 {
 	struct vme_bridge *bridge;
 	struct list_head *slave_pos = NULL;
@@ -298,7 +296,7 @@ EXPORT_SYMBOL(vme_slave_request);
 
 int vme_slave_set(struct vme_resource *resource, int enabled,
 	unsigned long long vme_base, unsigned long long size,
-	dma_addr_t buf_base, vme_address_t aspace, vme_cycle_t cycle)
+	dma_addr_t buf_base, u32 aspace, u32 cycle)
 {
 	struct vme_bridge *bridge = find_bridge(resource);
 	struct vme_slave_resource *image;
@@ -333,7 +331,7 @@ EXPORT_SYMBOL(vme_slave_set);
 
 int vme_slave_get(struct vme_resource *resource, int *enabled,
 	unsigned long long *vme_base, unsigned long long *size,
-	dma_addr_t *buf_base, vme_address_t *aspace, vme_cycle_t *cycle)
+	dma_addr_t *buf_base, u32 *aspace, u32 *cycle)
 {
 	struct vme_bridge *bridge = find_bridge(resource);
 	struct vme_slave_resource *image;
@@ -388,8 +386,8 @@ EXPORT_SYMBOL(vme_slave_free);
  * Request a master image with specific attributes, return some unique
  * identifier.
  */
-struct vme_resource *vme_master_request(struct vme_dev *vdev,
-	vme_address_t address, vme_cycle_t cycle, vme_width_t dwidth)
+struct vme_resource *vme_master_request(struct vme_dev *vdev, u32 address,
+	u32 cycle, u32 dwidth)
 {
 	struct vme_bridge *bridge;
 	struct list_head *master_pos = NULL;
@@ -456,8 +454,8 @@ err_bus:
 EXPORT_SYMBOL(vme_master_request);
 
 int vme_master_set(struct vme_resource *resource, int enabled,
-	unsigned long long vme_base, unsigned long long size,
-	vme_address_t aspace, vme_cycle_t cycle, vme_width_t dwidth)
+	unsigned long long vme_base, unsigned long long size, u32 aspace,
+	u32 cycle, u32 dwidth)
 {
 	struct vme_bridge *bridge = find_bridge(resource);
 	struct vme_master_resource *image;
@@ -492,8 +490,8 @@ int vme_master_set(struct vme_resource *resource, int enabled,
 EXPORT_SYMBOL(vme_master_set);
 
 int vme_master_get(struct vme_resource *resource, int *enabled,
-	unsigned long long *vme_base, unsigned long long *size,
-	vme_address_t *aspace, vme_cycle_t *cycle, vme_width_t *dwidth)
+	unsigned long long *vme_base, unsigned long long *size, u32 *aspace,
+	u32 *cycle, u32 *dwidth)
 {
 	struct vme_bridge *bridge = find_bridge(resource);
 	struct vme_master_resource *image;
@@ -646,8 +644,7 @@ EXPORT_SYMBOL(vme_master_free);
  * Request a DMA controller with specific attributes, return some unique
  * identifier.
  */
-struct vme_resource *vme_dma_request(struct vme_dev *vdev,
-	vme_dma_route_t route)
+struct vme_resource *vme_dma_request(struct vme_dev *vdev, u32 route)
 {
 	struct vme_bridge *bridge;
 	struct list_head *dma_pos = NULL;
@@ -743,8 +740,7 @@ EXPORT_SYMBOL(vme_new_dma_list);
 /*
  * Create "Pattern" type attributes
  */
-struct vme_dma_attr *vme_dma_pattern_attribute(u32 pattern,
-	vme_pattern_t type)
+struct vme_dma_attr *vme_dma_pattern_attribute(u32 pattern, u32 type)
 {
 	struct vme_dma_attr *attributes;
 	struct vme_dma_pattern *pattern_attr;
@@ -822,7 +818,7 @@ EXPORT_SYMBOL(vme_dma_pci_attribute);
  * Create "VME" type attributes
  */
 struct vme_dma_attr *vme_dma_vme_attribute(unsigned long long address,
-	vme_address_t aspace, vme_cycle_t cycle, vme_width_t dwidth)
+	u32 aspace, u32 cycle, u32 dwidth)
 {
 	struct vme_dma_attr *attributes;
 	struct vme_dma_vme *vme_attr;
@@ -1173,7 +1169,7 @@ int vme_lm_count(struct vme_resource *resource)
 EXPORT_SYMBOL(vme_lm_count);
 
 int vme_lm_set(struct vme_resource *resource, unsigned long long lm_base,
-	vme_address_t aspace, vme_cycle_t cycle)
+	u32 aspace, u32 cycle)
 {
 	struct vme_bridge *bridge = find_bridge(resource);
 	struct vme_lm_resource *lm;
@@ -1195,7 +1191,7 @@ int vme_lm_set(struct vme_resource *resource, unsigned long long lm_base,
 EXPORT_SYMBOL(vme_lm_set);
 
 int vme_lm_get(struct vme_resource *resource, unsigned long long *lm_base,
-	vme_address_t *aspace, vme_cycle_t *cycle)
+	u32 *aspace, u32 *cycle)
 {
 	struct vme_bridge *bridge = find_bridge(resource);
 	struct vme_lm_resource *lm;
@@ -1307,7 +1303,12 @@ EXPORT_SYMBOL(vme_slot_get);
 
 /* - Bridge Registration --------------------------------------------------- */
 
-static int vme_add_bus(struct vme_bridge *bridge)
+static void vme_dev_release(struct device *dev)
+{
+	kfree(dev_to_vme_dev(dev));
+}
+
+int vme_register_bridge(struct vme_bridge *bridge)
 {
 	int i;
 	int ret = -1;
@@ -1327,8 +1328,9 @@ static int vme_add_bus(struct vme_bridge *bridge)
 
 	return ret;
 }
+EXPORT_SYMBOL(vme_register_bridge);
 
-static void vme_remove_bus(struct vme_bridge *bridge)
+void vme_unregister_bridge(struct vme_bridge *bridge)
 {
 	struct vme_dev *vdev;
 	struct vme_dev *tmp;
@@ -1343,22 +1345,6 @@ static void vme_remove_bus(struct vme_bridge *bridge)
 	list_del(&bridge->bus_list);
 	mutex_unlock(&vme_buses_lock);
 }
-
-static void vme_dev_release(struct device *dev)
-{
-	kfree(dev_to_vme_dev(dev));
-}
-
-int vme_register_bridge(struct vme_bridge *bridge)
-{
-	return vme_add_bus(bridge);
-}
-EXPORT_SYMBOL(vme_register_bridge);
-
-void vme_unregister_bridge(struct vme_bridge *bridge)
-{
-	vme_remove_bus(bridge);
-}
 EXPORT_SYMBOL(vme_unregister_bridge);
 
 /* - Driver Registration --------------------------------------------------- */
@@ -1421,10 +1407,7 @@ static int __vme_register_driver(struct vme_driver *drv, unsigned int ndevs)
 		 * and if the bridge is removed, it will have to go through
 		 * vme_unregister_bridge() to do it (which calls remove() on
 		 * the bridge which in turn tries to acquire vme_buses_lock and
-		 * will have to wait). The probe() called after device
-		 * registration in __vme_register_driver below will also fail
-		 * as the bridge is being removed (since the probe() calls
-		 * vme_bridge_get()).
+		 * will have to wait).
 		 */
 		err = __vme_register_driver_bus(drv, bridge, ndevs);
 		if (err)
diff --git a/drivers/staging/vme/vme.h b/drivers/staging/vme/vme.h
index e3828badca61..9d38ceed60e2 100644
--- a/drivers/staging/vme/vme.h
+++ b/drivers/staging/vme/vme.h
@@ -10,7 +10,6 @@ enum vme_resource_type {
 };
 
 /* VME Address Spaces */
-typedef u32 vme_address_t;
 #define VME_A16		0x1
 #define VME_A24		0x2
 #define	VME_A32		0x4
@@ -29,7 +28,6 @@ typedef u32 vme_address_t;
 
 
 /* VME Cycle Types */
-typedef u32 vme_cycle_t;
 #define VME_SCT		0x1
 #define VME_BLT		0x2
 #define VME_MBLT	0x4
@@ -47,28 +45,23 @@ typedef u32 vme_cycle_t;
 #define	VME_DATA	0x8000
 
 /* VME Data Widths */
-typedef u32 vme_width_t;
 #define VME_D8		0x1
 #define VME_D16		0x2
 #define VME_D32		0x4
 #define VME_D64		0x8
 
 /* Arbitration Scheduling Modes */
-typedef u32 vme_arbitration_t;
 #define VME_R_ROBIN_MODE	0x1
 #define VME_PRIORITY_MODE	0x2
 
-typedef u32 vme_dma_t;
 #define VME_DMA_PATTERN			(1<<0)
 #define VME_DMA_PCI			(1<<1)
 #define VME_DMA_VME			(1<<2)
 
-typedef u32 vme_pattern_t;
 #define VME_DMA_PATTERN_BYTE		(1<<0)
 #define VME_DMA_PATTERN_WORD		(1<<1)
 #define VME_DMA_PATTERN_INCREMENT	(1<<2)
 
-typedef u32 vme_dma_route_t;
 #define VME_DMA_VME_TO_MEM		(1<<0)
 #define VME_DMA_MEM_TO_VME		(1<<1)
 #define VME_DMA_VME_TO_VME		(1<<2)
@@ -77,7 +70,7 @@ typedef u32 vme_dma_route_t;
 #define VME_DMA_PATTERN_TO_MEM		(1<<5)
 
 struct vme_dma_attr {
-	vme_dma_t type;
+	u32 type;
 	void *private;
 };
 
@@ -97,7 +90,7 @@ extern struct bus_type vme_bus_type;
 
 /**
  * Structure representing a VME device
- * @id: The ID of the device (currently the bus and slot number)
+ * @num: The device number
  * @bridge: Pointer to the bridge device this device is on
  * @dev: Internal device structure
  * @drv_list: List of devices (per driver)
@@ -128,32 +121,29 @@ void vme_free_consistent(struct vme_resource *, size_t,  void *,
 
 size_t vme_get_size(struct vme_resource *);
 
-struct vme_resource *vme_slave_request(struct vme_dev *, vme_address_t,
-	vme_cycle_t);
+struct vme_resource *vme_slave_request(struct vme_dev *, u32, u32);
 int vme_slave_set(struct vme_resource *, int, unsigned long long,
-	unsigned long long, dma_addr_t, vme_address_t, vme_cycle_t);
+	unsigned long long, dma_addr_t, u32, u32);
 int vme_slave_get(struct vme_resource *, int *, unsigned long long *,
-	unsigned long long *, dma_addr_t *, vme_address_t *, vme_cycle_t *);
+	unsigned long long *, dma_addr_t *, u32 *, u32 *);
 void vme_slave_free(struct vme_resource *);
 
-struct vme_resource *vme_master_request(struct vme_dev *, vme_address_t,
-	vme_cycle_t, vme_width_t);
+struct vme_resource *vme_master_request(struct vme_dev *, u32, u32, u32);
 int vme_master_set(struct vme_resource *, int, unsigned long long,
-	unsigned long long, vme_address_t, vme_cycle_t, vme_width_t);
+	unsigned long long, u32, u32, u32);
 int vme_master_get(struct vme_resource *, int *, unsigned long long *,
-	unsigned long long *, vme_address_t *, vme_cycle_t *, vme_width_t *);
+	unsigned long long *, u32 *, u32 *, u32 *);
 ssize_t vme_master_read(struct vme_resource *, void *, size_t, loff_t);
 ssize_t vme_master_write(struct vme_resource *, void *, size_t, loff_t);
 unsigned int vme_master_rmw(struct vme_resource *, unsigned int, unsigned int,
 	unsigned int, loff_t);
 void vme_master_free(struct vme_resource *);
 
-struct vme_resource *vme_dma_request(struct vme_dev *, vme_dma_route_t);
+struct vme_resource *vme_dma_request(struct vme_dev *, u32);
 struct vme_dma_list *vme_new_dma_list(struct vme_resource *);
-struct vme_dma_attr *vme_dma_pattern_attribute(u32, vme_pattern_t);
+struct vme_dma_attr *vme_dma_pattern_attribute(u32, u32);
 struct vme_dma_attr *vme_dma_pci_attribute(dma_addr_t);
-struct vme_dma_attr *vme_dma_vme_attribute(unsigned long long, vme_address_t,
-	vme_cycle_t, vme_width_t);
+struct vme_dma_attr *vme_dma_vme_attribute(unsigned long long, u32, u32, u32);
 void vme_dma_free_attribute(struct vme_dma_attr *);
 int vme_dma_list_add(struct vme_dma_list *, struct vme_dma_attr *,
 	struct vme_dma_attr *, size_t);
@@ -168,10 +158,8 @@ int vme_irq_generate(struct vme_dev *, int, int);
 
 struct vme_resource * vme_lm_request(struct vme_dev *);
 int vme_lm_count(struct vme_resource *);
-int vme_lm_set(struct vme_resource *, unsigned long long, vme_address_t,
-	vme_cycle_t);
-int vme_lm_get(struct vme_resource *, unsigned long long *, vme_address_t *,
-	vme_cycle_t *);
+int vme_lm_set(struct vme_resource *, unsigned long long, u32, u32);
+int vme_lm_get(struct vme_resource *, unsigned long long *, u32 *, u32 *);
 int vme_lm_attach(struct vme_resource *, int, void (*callback)(int));
 int vme_lm_detach(struct vme_resource *, int);
 void vme_lm_free(struct vme_resource *);
diff --git a/drivers/staging/vme/vme_api.txt b/drivers/staging/vme/vme_api.txt
index e8ff2151a487..856efa35f6e3 100644
--- a/drivers/staging/vme/vme_api.txt
+++ b/drivers/staging/vme/vme_api.txt
@@ -86,26 +86,26 @@ driver allows a resource to be assigned based on the required attributes of the
 driver in question:
 
 	struct vme_resource * vme_master_request(struct vme_dev *dev,
-		vme_address_t aspace, vme_cycle_t cycle, vme_width_t width);
-
-	struct vme_resource * vme_slave_request(struct vme_dev *dev,
-		vme_address_t aspace, vme_cycle_t cycle);
-
-	struct vme_resource *vme_dma_request(struct vme_dev *dev,
-		vme_dma_route_t route);
-
-For slave windows these attributes are split into those of type 'vme_address_t'
-and 'vme_cycle_t'. Master windows add a further set of attributes
-'vme_cycle_t'.  These attributes are defined as bitmasks and as such any
-combination of the attributes can be requested for a single window, the core
-will assign a window that meets the requirements, returning a pointer of type
-vme_resource that should be used to identify the allocated resource when it is
-used. For DMA controllers, the request function requires the potential
-direction of any transfers to be provided in the route attributes. This is
-typically VME-to-MEM and/or MEM-to-VME, though some hardware can support
-VME-to-VME and MEM-to-MEM transfers as well as test pattern generation. If an
-unallocated window fitting the requirements can not be found a NULL pointer
-will be returned.
+		u32 aspace, u32 cycle, u32 width);
+
+	struct vme_resource * vme_slave_request(struct vme_dev *dev, u32 aspace,
+		u32 cycle);
+
+	struct vme_resource *vme_dma_request(struct vme_dev *dev, u32 route);
+
+For slave windows these attributes are split into the VME address spaces that
+need to be accessed in 'aspace' and VME bus cycle types required in 'cycle'.
+Master windows add a further set of attributes in 'width' specifying the
+required data transfer widths. These attributes are defined as bitmasks and as
+such any combination of the attributes can be requested for a single window,
+the core will assign a window that meets the requirements, returning a pointer
+of type vme_resource that should be used to identify the allocated resource
+when it is used. For DMA controllers, the request function requires the
+potential direction of any transfers to be provided in the route attributes.
+This is typically VME-to-MEM and/or MEM-to-VME, though some hardware can
+support VME-to-VME and MEM-to-MEM transfers as well as test pattern generation.
+If an unallocated window fitting the requirements can not be found a NULL
+pointer will be returned.
 
 Functions are also provided to free window allocations once they are no longer
 required. These functions should be passed the pointer to the resource provided
@@ -133,12 +133,12 @@ Once a master window has been assigned the following functions can be used to
 configure it and retrieve the current settings:
 
 	int vme_master_set (struct vme_resource *res, int enabled,
-		unsigned long long base, unsigned long long size,
-		vme_address_t aspace, vme_cycle_t cycle, vme_width_t width);
+		unsigned long long base, unsigned long long size, u32 aspace,
+		u32 cycle, u32 width);
 
 	int vme_master_get (struct vme_resource *res, int *enabled,
-		unsigned long long *base, unsigned long long *size,
-		vme_address_t *aspace, vme_cycle_t *cycle, vme_width_t *width);
+		unsigned long long *base, unsigned long long *size, u32 *aspace,
+		u32 *cycle, u32 *width);
 
 The address spaces, transfer widths and cycle types are the same as described
 under resource management, however some of the options are mutually exclusive.
@@ -189,11 +189,11 @@ configure it and retrieve the current settings:
 
 	int vme_slave_set (struct vme_resource *res, int enabled,
 		unsigned long long base, unsigned long long size,
-		dma_addr_t mem, vme_address_t aspace, vme_cycle_t cycle);
+		dma_addr_t mem, u32 aspace, u32 cycle);
 
 	int vme_slave_get (struct vme_resource *res, int *enabled,
 		unsigned long long *base, unsigned long long *size,
-		dma_addr_t *mem, vme_address_t *aspace, vme_cycle_t *cycle);
+		dma_addr_t *mem, u32 *aspace, u32 *cycle);
 
 The address spaces, transfer widths and cycle types are the same as described
 under resource management, however some of the options are mutually exclusive.
@@ -273,8 +273,7 @@ and pattern sources and destinations (where appropriate):
 
 Pattern source:
 
-	struct vme_dma_attr *vme_dma_pattern_attribute(u32 pattern,
-		vme_pattern_t type);
+	struct vme_dma_attr *vme_dma_pattern_attribute(u32 pattern, u32 type);
 
 PCI source or destination:
 
@@ -283,7 +282,7 @@ PCI source or destination:
 VME source or destination:
 
 	struct vme_dma_attr *vme_dma_vme_attribute(unsigned long long base,
-		vme_address_t aspace, vme_cycle_t cycle, vme_width_t width);
+		u32 aspace, u32 cycle, u32 width);
 
 The following function should be used to free an attribute:
 
@@ -366,10 +365,10 @@ Once a bank of location monitors has been allocated, the following functions
 are provided to configure the location and mode of the location monitor:
 
 	int vme_lm_set(struct vme_resource *res, unsigned long long base,
-		vme_address_t aspace, vme_cycle_t cycle);
+		u32 aspace, u32 cycle);
 
 	int vme_lm_get(struct vme_resource *res, unsigned long long *base,
-		vme_address_t *aspace, vme_cycle_t *cycle);
+		u32 *aspace, u32 *cycle);
 
 
 Location Monitor Use
diff --git a/drivers/staging/vme/vme_bridge.h b/drivers/staging/vme/vme_bridge.h
index c2deda2c38df..934949abd745 100644
--- a/drivers/staging/vme/vme_bridge.h
+++ b/drivers/staging/vme/vme_bridge.h
@@ -15,9 +15,9 @@ struct vme_master_resource {
 	spinlock_t lock;
 	int locked;
 	int number;
-	vme_address_t address_attr;
-	vme_cycle_t cycle_attr;
-	vme_width_t width_attr;
+	u32 address_attr;
+	u32 cycle_attr;
+	u32 width_attr;
 	struct resource bus_resource;
 	void __iomem *kern_base;
 };
@@ -28,13 +28,13 @@ struct vme_slave_resource {
 	struct mutex mtx;
 	int locked;
 	int number;
-	vme_address_t address_attr;
-	vme_cycle_t cycle_attr;
+	u32 address_attr;
+	u32 cycle_attr;
 };
 
 struct vme_dma_pattern {
 	u32 pattern;
-	vme_pattern_t type;
+	u32 type;
 };
 
 struct vme_dma_pci {
@@ -43,9 +43,9 @@ struct vme_dma_pci {
 
 struct vme_dma_vme {
 	unsigned long long address;
-	vme_address_t aspace;
-	vme_cycle_t cycle;
-	vme_width_t dwidth;
+	u32 aspace;
+	u32 cycle;
+	u32 dwidth;
 };
 
 struct vme_dma_list {
@@ -63,7 +63,7 @@ struct vme_dma_resource {
 	int number;
 	struct list_head pending;
 	struct list_head running;
-	vme_dma_route_t route_attr;
+	u32 route_attr;
 };
 
 struct vme_lm_resource {
@@ -122,17 +122,16 @@ struct vme_bridge {
 	/* Slave Functions */
 	int (*slave_get) (struct vme_slave_resource *, int *,
 		unsigned long long *, unsigned long long *, dma_addr_t *,
-		vme_address_t *, vme_cycle_t *);
+		u32 *, u32 *);
 	int (*slave_set) (struct vme_slave_resource *, int, unsigned long long,
-		unsigned long long, dma_addr_t, vme_address_t, vme_cycle_t);
+		unsigned long long, dma_addr_t, u32, u32);
 
 	/* Master Functions */
 	int (*master_get) (struct vme_master_resource *, int *,
-		unsigned long long *, unsigned long long *, vme_address_t *,
-		vme_cycle_t *, vme_width_t *);
+		unsigned long long *, unsigned long long *, u32 *, u32 *,
+		u32 *);
 	int (*master_set) (struct vme_master_resource *, int,
-		unsigned long long, unsigned long long,  vme_address_t,
-		vme_cycle_t, vme_width_t);
+		unsigned long long, unsigned long long,  u32, u32, u32);
 	ssize_t (*master_read) (struct vme_master_resource *, void *, size_t,
 		loff_t);
 	ssize_t (*master_write) (struct vme_master_resource *, void *, size_t,
@@ -151,10 +150,9 @@ struct vme_bridge {
 	int (*irq_generate) (struct vme_bridge *, int, int);
 
 	/* Location monitor functions */
-	int (*lm_set) (struct vme_lm_resource *, unsigned long long,
-		vme_address_t, vme_cycle_t);
-	int (*lm_get) (struct vme_lm_resource *, unsigned long long *,
-		vme_address_t *, vme_cycle_t *);
+	int (*lm_set) (struct vme_lm_resource *, unsigned long long, u32, u32);
+	int (*lm_get) (struct vme_lm_resource *, unsigned long long *, u32 *,
+		u32 *);
 	int (*lm_attach) (struct vme_lm_resource *, int, void (*callback)(int));
 	int (*lm_detach) (struct vme_lm_resource *, int);
 
diff --git a/drivers/staging/vt6655/device_main.c b/drivers/staging/vt6655/device_main.c
index d8dd7846447d..3e8283c2dc73 100644
--- a/drivers/staging/vt6655/device_main.c
+++ b/drivers/staging/vt6655/device_main.c
@@ -3153,11 +3153,7 @@ static int  device_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) {
 		break;
 
 	case SIOCGIWNWID:     //0x8b03  support
-	#ifdef  WPA_SUPPLICANT_DRIVER_WEXT_SUPPORT
-          rc = iwctl_giwnwid(dev, NULL, &(wrq->u.nwid), NULL);
-	#else
-        rc = -EOPNOTSUPP;
-	#endif
+		rc = -EOPNOTSUPP;
 		break;
 
 		// Set frequency/channel
diff --git a/drivers/staging/vt6655/ioctl.c b/drivers/staging/vt6655/ioctl.c
index 432a20993c6e..7fd5cc5a55f6 100644
--- a/drivers/staging/vt6655/ioctl.c
+++ b/drivers/staging/vt6655/ioctl.c
@@ -300,6 +300,10 @@ int private_ioctl(PSDevice pDevice, struct ifreq *rq)
 			result = -EFAULT;
 			break;
 		}
+		if (sList.uItem > (ULONG_MAX - sizeof(SBSSIDList)) / sizeof(SBSSIDItem)) {
+			result = -EINVAL;
+			break;
+		}
 		pList = (PSBSSIDList)kmalloc(sizeof(SBSSIDList) + (sList.uItem * sizeof(SBSSIDItem)), (int)GFP_ATOMIC);
 		if (pList == NULL) {
 			result = -ENOMEM;
@@ -571,6 +575,10 @@ int private_ioctl(PSDevice pDevice, struct ifreq *rq)
 			result = -EFAULT;
 			break;
 		}
+		if (sNodeList.uItem > (ULONG_MAX - sizeof(SNodeList)) / sizeof(SNodeItem)) {
+			result = -EINVAL;
+			break;
+		}
 		pNodeList = (PSNodeList)kmalloc(sizeof(SNodeList) + (sNodeList.uItem * sizeof(SNodeItem)), (int)GFP_ATOMIC);
 		if (pNodeList == NULL) {
 			result = -ENOMEM;
diff --git a/drivers/staging/vt6655/iwctl.c b/drivers/staging/vt6655/iwctl.c
index 5e425d1476b8..87288db21785 100644
--- a/drivers/staging/vt6655/iwctl.c
+++ b/drivers/staging/vt6655/iwctl.c
@@ -151,18 +151,6 @@ int iwctl_giwname(struct net_device *dev,
 	return 0;
 }
 
-int iwctl_giwnwid(struct net_device *dev,
-             struct iw_request_info *info,
-			 struct iw_param *wrq,
-                   char *extra)
-{
- 	//wrq->value = 0x100;
-	//wrq->disabled = 0;
-	//wrq->fixed = 1;
-	//return 0;
-  return -EOPNOTSUPP;
-}
-
 /*
  * Wireless Handler : set scan
  */
diff --git a/drivers/staging/vt6655/iwctl.h b/drivers/staging/vt6655/iwctl.h
index 3096de0ba1bd..d224f913a624 100644
--- a/drivers/staging/vt6655/iwctl.h
+++ b/drivers/staging/vt6655/iwctl.h
@@ -79,11 +79,6 @@ int iwctl_giwname(struct net_device *dev,
 			 char *wrq,
 			 char *extra);
 
-int iwctl_giwnwid(struct net_device *dev,
-             struct iw_request_info *info,
-			 struct iw_param *wrq,
-                   char *extra) ;
-
 int iwctl_giwsens(struct net_device *dev,
 			 struct iw_request_info *info,
 			 struct iw_param *wrq,
diff --git a/drivers/staging/vt6656/80211mgr.c b/drivers/staging/vt6656/80211mgr.c
index fceec4999c36..39f98423dc02 100644
--- a/drivers/staging/vt6656/80211mgr.c
+++ b/drivers/staging/vt6656/80211mgr.c
@@ -224,8 +224,6 @@ vMgrDecodeBeacon(
         }
         pItem = (PWLAN_IE)(((PBYTE)pItem) + 2 + pItem->len);
     }
-
-    return;
 }
 
 
@@ -248,8 +246,6 @@ vMgrEncodeIBSSATIM(
 {
     pFrame->pHdr = (PUWLAN_80211HDR)pFrame->pBuf;
     pFrame->len = WLAN_HDR_ADDR3_LEN;
-
-    return;
 }
 
 
@@ -270,8 +266,6 @@ vMgrDecodeIBSSATIM(
     )
 {
     pFrame->pHdr = (PUWLAN_80211HDR)pFrame->pBuf;
-
-    return;
 }
 
 
@@ -298,8 +292,6 @@ vMgrEncodeDisassociation(
     pFrame->pwReason = (PWORD)(WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3))
                                + WLAN_DISASSOC_OFF_REASON);
     pFrame->len = WLAN_HDR_ADDR3_LEN + WLAN_DISASSOC_OFF_REASON + sizeof(*(pFrame->pwReason));
-
-    return;
 }
 
 
@@ -324,8 +316,6 @@ vMgrDecodeDisassociation(
     /* Fixed Fields */
     pFrame->pwReason = (PWORD)(WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3))
                                + WLAN_DISASSOC_OFF_REASON);
-
-    return;
 }
 
 /*+
@@ -352,7 +342,6 @@ vMgrEncodeAssocRequest(
     pFrame->pwListenInterval = (PWORD)(WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3))
                                        + WLAN_ASSOCREQ_OFF_LISTEN_INT);
     pFrame->len = WLAN_HDR_ADDR3_LEN + WLAN_ASSOCREQ_OFF_LISTEN_INT + sizeof(*(pFrame->pwListenInterval));
-    return;
 }
 
 
@@ -418,7 +407,6 @@ vMgrDecodeAssocRequest(
         }
         pItem = (PWLAN_IE)(((PBYTE)pItem) + 2 + pItem->len);
     }
-    return;
 }
 
 /*+
@@ -448,8 +436,6 @@ vMgrEncodeAssocResponse(
                             + WLAN_ASSOCRESP_OFF_AID);
     pFrame->len = WLAN_HDR_ADDR3_LEN + WLAN_ASSOCRESP_OFF_AID
                   + sizeof(*(pFrame->pwAid));
-
-    return;
 }
 
 
@@ -491,10 +477,8 @@ vMgrDecodeAssocResponse(
     if ((((PBYTE)pItem) < (pFrame->pBuf + pFrame->len)) && (pItem->byElementID == WLAN_EID_EXTSUPP_RATES)) {
         pFrame->pExtSuppRates = (PWLAN_IE_SUPP_RATES)pItem;
         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "pFrame->pExtSuppRates=[%p].\n", pItem);
-    } else {
+	} else
         pFrame->pExtSuppRates = NULL;
-    }
-    return;
 }
 
 
@@ -524,8 +508,6 @@ vMgrEncodeReassocRequest(
     pFrame->pAddrCurrAP = (PIEEE_ADDR)(WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3))
                                        + WLAN_REASSOCREQ_OFF_CURR_AP);
     pFrame->len = WLAN_HDR_ADDR3_LEN + WLAN_REASSOCREQ_OFF_CURR_AP + sizeof(*(pFrame->pAddrCurrAP));
-
-    return;
 }
 
 
@@ -578,10 +560,9 @@ vMgrDecodeReassocRequest(
                 pFrame->pRSN = (PWLAN_IE_RSN)pItem;
             break;
         case WLAN_EID_RSN_WPA:
-            if (pFrame->pRSNWPA == NULL) {
+		if (pFrame->pRSNWPA == NULL)
                 if (WPAb_Is_RSN((PWLAN_IE_RSN_EXT)pItem) == TRUE)
                     pFrame->pRSNWPA = (PWLAN_IE_RSN_EXT)pItem;
-            }
             break;
 
         case WLAN_EID_EXTSUPP_RATES:
@@ -595,7 +576,6 @@ vMgrDecodeReassocRequest(
         }
         pItem = (PWLAN_IE)(((PBYTE)pItem) + 2 + pItem->len);
     }
-    return;
 }
 
 
@@ -619,7 +599,6 @@ vMgrEncodeProbeRequest(
 {
     pFrame->pHdr = (PUWLAN_80211HDR)pFrame->pBuf;
     pFrame->len = WLAN_HDR_ADDR3_LEN;
-    return;
 }
 
 /*+
@@ -670,7 +649,6 @@ vMgrDecodeProbeRequest(
 
         pItem = (PWLAN_IE)(((PBYTE)pItem) + 2 +  pItem->len);
     }
-    return;
 }
 
 
@@ -703,8 +681,6 @@ vMgrEncodeProbeResponse(
 
     pFrame->len = WLAN_HDR_ADDR3_LEN + WLAN_PROBERESP_OFF_CAP_INFO +
                   sizeof(*(pFrame->pwCapInfo));
-
-    return;
 }
 
 
@@ -818,7 +794,6 @@ vMgrDecodeProbeResponse(
 
         pItem = (PWLAN_IE)(((PBYTE)pItem) + 2 +  pItem->len);
     }
-    return;
 }
 
 
@@ -848,7 +823,6 @@ vMgrEncodeAuthen(
     pFrame->pwStatus = (PWORD)(WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3))
                                + WLAN_AUTHEN_OFF_STATUS);
     pFrame->len = WLAN_HDR_ADDR3_LEN + WLAN_AUTHEN_OFF_STATUS + sizeof(*(pFrame->pwStatus));
-    return;
 }
 
 
@@ -886,7 +860,6 @@ vMgrDecodeAuthen(
 
     if ((((PBYTE)pItem) < (pFrame->pBuf + pFrame->len)) && (pItem->byElementID == WLAN_EID_CHALLENGE))
         pFrame->pChallenge = (PWLAN_IE_CHALLENGE)pItem;
-    return;
 }
 
 
@@ -912,7 +885,6 @@ vMgrEncodeDeauthen(
     pFrame->pwReason = (PWORD)(WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3))
                                + WLAN_DEAUTHEN_OFF_REASON);
     pFrame->len = WLAN_HDR_ADDR3_LEN + WLAN_DEAUTHEN_OFF_REASON + sizeof(*(pFrame->pwReason));
-    return;
 }
 
 
@@ -937,7 +909,6 @@ vMgrDecodeDeauthen(
     /* Fixed Fields */
     pFrame->pwReason = (PWORD)(WLAN_HDR_A3_DATA_PTR(&(pFrame->pHdr->sA3))
                                + WLAN_DEAUTHEN_OFF_REASON);
-    return;
 }
 
 
@@ -968,7 +939,6 @@ vMgrEncodeReassocResponse(
                             + WLAN_REASSOCRESP_OFF_AID);
 
     pFrame->len = WLAN_HDR_ADDR3_LEN + WLAN_REASSOCRESP_OFF_AID + sizeof(*(pFrame->pwAid));
-    return;
 }
 
 
@@ -1010,5 +980,4 @@ vMgrDecodeReassocResponse(
 
     if ((((PBYTE)pItem) < (pFrame->pBuf + pFrame->len)) && (pItem->byElementID == WLAN_EID_EXTSUPP_RATES))
         pFrame->pExtSuppRates = (PWLAN_IE_SUPP_RATES)pItem;
-    return;
 }
diff --git a/drivers/staging/vt6656/baseband.c b/drivers/staging/vt6656/baseband.c
index 0d11147f91c1..06f27f624db4 100644
--- a/drivers/staging/vt6656/baseband.c
+++ b/drivers/staging/vt6656/baseband.c
@@ -932,30 +932,8 @@ BBvCaculateParameter (
 void
 BBvSetAntennaMode (PSDevice pDevice, BYTE byAntennaMode)
 {
-    //{{ RobertYu: 20041124, ABG Mode, VC1/VC2 define, make the ANT_A, ANT_B inverted
-    /*if ( (pDevice->byRFType == RF_MAXIM2829) ||
-         (pDevice->byRFType == RF_UW2452) ||
-         (pDevice->byRFType == RF_AIROHA7230) ) { // RobertYu: 20041210, 20050104
-
-        switch (byAntennaMode) {
-            case ANT_TXA:
-                byAntennaMode = ANT_TXB;
-                break;
-            case ANT_TXB:
-                byAntennaMode = ANT_TXA;
-                break;
-            case ANT_RXA:
-                byAntennaMode = ANT_RXB;
-                break;
-            case ANT_RXB:
-                byAntennaMode = ANT_RXA;
-                break;
-        }
-    }*/
-
     switch (byAntennaMode) {
         case ANT_TXA:
-            break;
         case ANT_TXB:
             break;
         case ANT_RXA:
@@ -1249,8 +1227,7 @@ void BBvLoopbackOff (PSDevice pDevice)
         // Set the CR33 Bit2 to disable internal Loopback.
         ControlvReadByte (pDevice, MESSAGE_REQUEST_BBREG, 0x21, &byData);//CR33
         ControlvWriteByte(pDevice, MESSAGE_REQUEST_BBREG, 0x21, (BYTE)(byData & 0xFE));//CR33
-    }
-    else { // OFDM
+	} else { /* OFDM */
         ControlvReadByte (pDevice, MESSAGE_REQUEST_BBREG, 0x9A, &byData);//CR154
         ControlvWriteByte(pDevice, MESSAGE_REQUEST_BBREG, 0x9A, (BYTE)(byData & 0xFE));//CR154
     }
@@ -1277,19 +1254,16 @@ BBvSetShortSlotTime (PSDevice pDevice)
 {
     BYTE byBBVGA=0;
 
-    if (pDevice->bShortSlotTime) {
+	if (pDevice->bShortSlotTime)
         pDevice->byBBRxConf &= 0xDF;//1101 1111
-    } else {
+	else
         pDevice->byBBRxConf |= 0x20;//0010 0000
-    }
 
     ControlvReadByte (pDevice, MESSAGE_REQUEST_BBREG, 0xE7, &byBBVGA);
-    if (byBBVGA == pDevice->abyBBVGA[0]) {
+	if (byBBVGA == pDevice->abyBBVGA[0])
         pDevice->byBBRxConf |= 0x20;//0010 0000
-    }
 
     ControlvWriteByte(pDevice, MESSAGE_REQUEST_BBREG, 0x0A, pDevice->byBBRxConf);
-
 }
 
 
@@ -1299,13 +1273,11 @@ void BBvSetVGAGainOffset(PSDevice pDevice, BYTE byData)
     ControlvWriteByte(pDevice, MESSAGE_REQUEST_BBREG, 0xE7, byData);
 
     // patch for 3253B0 Baseband with Cardbus module
-    if (byData == pDevice->abyBBVGA[0]) {
-        pDevice->byBBRxConf |= 0x20;//0010 0000
-    } else if (pDevice->bShortSlotTime) {
-        pDevice->byBBRxConf &= 0xDF;//1101 1111
-    } else {
-        pDevice->byBBRxConf |= 0x20;//0010 0000
-    }
+	if (pDevice->bShortSlotTime)
+		pDevice->byBBRxConf &= 0xDF; /* 1101 1111 */
+	else
+		pDevice->byBBRxConf |= 0x20; /* 0010 0000 */
+
     ControlvWriteByte(pDevice, MESSAGE_REQUEST_BBREG, 0x0A, pDevice->byBBRxConf);//CR10
 }
 
@@ -1365,15 +1337,14 @@ static unsigned long s_ulGetLowSQ3(PSDevice pDevice)
 	unsigned long ulMaxPacket;
 
     ulMaxPacket = pDevice->aulPktNum[RATE_54M];
-    if ( pDevice->aulPktNum[RATE_54M] != 0 ) {
+	if (pDevice->aulPktNum[RATE_54M] != 0)
         ulSQ3 = pDevice->aulSQ3Val[RATE_54M] / pDevice->aulPktNum[RATE_54M];
-    }
-    for ( ii=RATE_48M;ii>=RATE_6M;ii-- ) {
-        if ( pDevice->aulPktNum[ii] > ulMaxPacket ) {
+
+	for (ii = RATE_48M; ii >= RATE_6M; ii--)
+		if (pDevice->aulPktNum[ii] > ulMaxPacket) {
             ulMaxPacket = pDevice->aulPktNum[ii];
             ulSQ3 = pDevice->aulSQ3Val[ii] / pDevice->aulPktNum[ii];
         }
-    }
 
     return ulSQ3;
 }
@@ -1392,7 +1363,7 @@ static unsigned long s_ulGetRatio(PSDevice pDevice)
         ulRatio = (ulPacketNum * 1000 / pDevice->uDiversityCnt);
         ulRatio += TOP_RATE_54M;
     }
-    for ( ii=RATE_48M;ii>=RATE_1M;ii-- ) {
+	for (ii = RATE_48M; ii >= RATE_1M; ii--)
         if ( pDevice->aulPktNum[ii] > ulMaxPacket ) {
             ulPacketNum = 0;
             for ( jj=RATE_54M;jj>=ii;jj--)
@@ -1402,8 +1373,6 @@ static unsigned long s_ulGetRatio(PSDevice pDevice)
             ulMaxPacket = pDevice->aulPktNum[ii];
         }
 
-    }
-
     return ulRatio;
 }
 
@@ -1589,7 +1558,6 @@ void TimerSQ3CallBack(void *hDeviceContext)
 
 
     spin_unlock_irq(&pDevice->lock);
-    return;
 }
 
 
@@ -1637,7 +1605,6 @@ void TimerSQ3Tmax3CallBack(void *hDeviceContext)
     add_timer(&pDevice->TimerSQ3Tmax1);
 
     spin_unlock_irq(&pDevice->lock);
-    return;
 }
 
 void
diff --git a/drivers/staging/vt6656/bssdb.c b/drivers/staging/vt6656/bssdb.c
index af006df4c8e9..32c67ed8435a 100644
--- a/drivers/staging/vt6656/bssdb.c
+++ b/drivers/staging/vt6656/bssdb.c
@@ -216,26 +216,6 @@ PKnownBSS BSSpSearchBSSList(void *hDeviceContext,
                         continue;
                     }
                 }
-/*
-                if (pMgmt->eAuthenMode < WMAC_AUTH_WPA) {
-                    if (pCurrBSS->bWPAValid == TRUE) {
-                        // WPA AP will reject connection of station without WPA enable.
-                        continue;
-                    }
-                } else if ((pMgmt->eAuthenMode == WMAC_AUTH_WPA) ||
-                           (pMgmt->eAuthenMode == WMAC_AUTH_WPAPSK)) {
-                    if (pCurrBSS->bWPAValid == FALSE) {
-                        // station with WPA enable can't join NonWPA AP.
-                        continue;
-                    }
-                } else if ((pMgmt->eAuthenMode == WMAC_AUTH_WPA2) ||
-                           (pMgmt->eAuthenMode == WMAC_AUTH_WPA2PSK)) {
-                    if (pCurrBSS->bWPA2Valid == FALSE) {
-                        // station with WPA2 enable can't join NonWPA2 AP.
-                        continue;
-                    }
-                }
-*/
 
         pMgmt->pSameBSS[jj].uChannel = pCurrBSS->uChannel;
         DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"BSSpSearchBSSList pSelect1[%02X %02X %02X-%02X %02X %02X]\n",*pCurrBSS->abyBSSID,*(pCurrBSS->abyBSSID+1),*(pCurrBSS->abyBSSID+2),*(pCurrBSS->abyBSSID+3),*(pCurrBSS->abyBSSID+4),*(pCurrBSS->abyBSSID+5));
@@ -300,18 +280,11 @@ void BSSvClearBSSList(void *hDeviceContext, BOOL bKeepCurrBSSID)
                 continue;
             }
         }
-/*
-        if ((pMgmt->sBSSList[ii].bActive) && (pMgmt->sBSSList[ii].uClearCount < BSS_CLEAR_COUNT)) {
-             pMgmt->sBSSList[ii].uClearCount ++;
-             continue;
-        }
-*/
-        pMgmt->sBSSList[ii].bActive = FALSE;
+
+	pMgmt->sBSSList[ii].bActive = FALSE;
         memset(&pMgmt->sBSSList[ii], 0, sizeof(KnownBSS));
     }
     BSSvClearAnyBSSJoinRecord(pDevice);
-
-    return;
 }
 
 
@@ -524,46 +497,6 @@ BOOL BSSbInsertToBSSList(void *hDeviceContext,
             pBSSList->ldBmAverage[ii] = 0;
     }
 
-/*
-    if ((pIE_Country != NULL) &&
-        (pMgmt->b11hEnable == TRUE)) {
-        CARDvSetCountryInfo(pMgmt->pAdapter,
-                            pBSSList->eNetworkTypeInUse,
-                            pIE_Country);
-    }
-
-    if ((bParsingQuiet == TRUE) && (pIE_Quiet != NULL)) {
-        if ((((PWLAN_IE_QUIET)pIE_Quiet)->len == 8) &&
-            (((PWLAN_IE_QUIET)pIE_Quiet)->byQuietCount != 0)) {
-            // valid EID
-            if (pQuiet == NULL) {
-                pQuiet = (PWLAN_IE_QUIET)pIE_Quiet;
-                CARDbSetQuiet(  pMgmt->pAdapter,
-                                TRUE,
-                                pQuiet->byQuietCount,
-                                pQuiet->byQuietPeriod,
-                                *((PWORD)pQuiet->abyQuietDuration),
-                                *((PWORD)pQuiet->abyQuietOffset)
-                                );
-            } else {
-                pQuiet = (PWLAN_IE_QUIET)pIE_Quiet;
-                CARDbSetQuiet(  pMgmt->pAdapter,
-                                FALSE,
-                                pQuiet->byQuietCount,
-                                pQuiet->byQuietPeriod,
-                                *((PWORD)pQuiet->abyQuietDuration),
-                                *((PWORD)pQuiet->abyQuietOffset)
-                                );
-            }
-        }
-    }
-
-    if ((bParsingQuiet == TRUE) &&
-        (pQuiet != NULL)) {
-        CARDbStartQuiet(pMgmt->pAdapter);
-    }
-*/
-
     pBSSList->uIELength = uIELength;
     if (pBSSList->uIELength > WLAN_BEACON_FR_MAXLEN)
         pBSSList->uIELength = WLAN_BEACON_FR_MAXLEN;
@@ -609,8 +542,6 @@ BOOL BSSbUpdateToBSSList(void *hDeviceContext,
     PSRxMgmtPacket  pRxPacket = (PSRxMgmtPacket)pRxPacketContext;
     signed long            ldBm, ldBmSum;
     BOOL            bParsingQuiet = FALSE;
-  //  BYTE            abyTmpSSID[WLAN_IEHDR_LEN + WLAN_SSID_MAXLEN + 1];
-
 
     if (pBSSList == NULL)
         return FALSE;
@@ -622,7 +553,6 @@ BOOL BSSbUpdateToBSSList(void *hDeviceContext,
     pBSSList->wCapInfo = cpu_to_le16(wCapInfo);
     pBSSList->uClearCount = 0;
     pBSSList->uChannel = byCurrChannel;
-//    DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO"BSSbUpdateToBSSList: pBSSList->uChannel: %d\n", pBSSList->uChannel);
 
     if (pSSID->len > WLAN_SSID_MAXLEN)
         pSSID->len = WLAN_SSID_MAXLEN;
@@ -809,7 +739,6 @@ void BSSvCreateOneNode(void *hDeviceContext, unsigned int *puNodeIndex)
     pMgmt->sNodeDBTable[*puNodeIndex].byAuthSequence = 0;
     pMgmt->sNodeDBTable[*puNodeIndex].wEnQueueCnt = 0;
     DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "Create node index = %d\n", ii);
-    return;
 };
 
 
@@ -840,8 +769,6 @@ void BSSvRemoveOneNode(void *hDeviceContext, unsigned int uNodeIndex)
     memset(&pMgmt->sNodeDBTable[uNodeIndex], 0, sizeof(KnownNodeDB));
     // clear tx bit map
     pMgmt->abyPSTxMap[pMgmt->sNodeDBTable[uNodeIndex].wAID >> 3] &=  ~byMask[pMgmt->sNodeDBTable[uNodeIndex].wAID & 7];
-
-    return;
 };
 /*+
  *
@@ -1054,10 +981,6 @@ if((pMgmt->eCurrState!=WMAC_STATE_ASSOC) &&
 
             // Rate fallback check
             if (!pDevice->bFixRate) {
-/*
-                if ((pMgmt->eCurrMode == WMAC_MODE_ESS_STA) && (ii == 0))
-                    RATEvTxRateFallBack(pDevice, &(pMgmt->sNodeDBTable[ii]));
-*/
                 if (ii > 0) {
                     // ii = 0 for multicast node (AP & Adhoc)
 			RATEvTxRateFallBack((void *)pDevice,
@@ -1152,7 +1075,6 @@ if((pMgmt->eCurrState!=WMAC_STATE_ASSOC) &&
         (pMgmt->eCurrMode == WMAC_MODE_ESS_STA)) {
 
         if (pMgmt->sNodeDBTable[0].bActive) { // Assoc with BSS
-           // DBG_PRT(MSG_LEVEL_INFO, KERN_INFO "Callback inactive Count = [%d]\n", pMgmt->sNodeDBTable[0].uInActiveCount);
 
             if (pDevice->bUpdateBBVGA) {
 		/* s_vCheckSensitivity((void *) pDevice); */
@@ -1194,7 +1116,6 @@ if((pMgmt->eCurrState!=WMAC_STATE_ASSOC) &&
              pDevice->skb = dev_alloc_skb((int)pDevice->rx_buf_sz);
          }
    #ifdef WPA_SUPPLICANT_DRIVER_WEXT_SUPPORT
-  // if(pDevice->bWPASuppWextEnabled == TRUE)
       {
 	union iwreq_data  wrqu;
 	memset(&wrqu, 0, sizeof (wrqu));
@@ -1223,7 +1144,6 @@ DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "bIsRoaming %d, !\n", pDevice->bIsRoaming );
                 pDevice->uIsroamingTime = 0;
                 pDevice->bRoaming = FALSE;
 
-//            if ((pDevice->bWPADEVUp) && (pDevice->skb != NULL)) {
              wpahdr = (viawget_wpa_header *)pDevice->skb->data;
              wpahdr->type = VIAWGET_CCKM_ROAM_MSG;
              wpahdr->resp_ie_len = 0;
@@ -1237,7 +1157,6 @@ DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "bIsRoaming %d, !\n", pDevice->bIsRoaming );
              netif_rx(pDevice->skb);
             pDevice->skb = dev_alloc_skb((int)pDevice->rx_buf_sz);
 
-//         }
           }
       else if ((pDevice->bRoaming == FALSE)&&(pDevice->bIsRoaming == TRUE)) {
                             pDevice->uIsroamingTime++;
@@ -1315,7 +1234,6 @@ else {
 
     pMgmt->sTimerSecondCallback.expires = RUN_AT(HZ);
     add_timer(&pMgmt->sTimerSecondCallback);
-    return;
 }
 
 /*+
@@ -1364,7 +1282,6 @@ void BSSvUpdateNodeTxCounter(void *hDeviceContext,
 
     // Only Unicast using support rates
     if (wFIFOCtl & FIFOCTL_NEEDACK) {
-        //DBG_PRN_GRP21(("Device %08X, wRate %04X, byTSR %02X\n", hDeviceContext, wRate, byTSR));
         if (pMgmt->eCurrMode == WMAC_MODE_ESS_STA) {
             pMgmt->sNodeDBTable[0].uTxAttempts += 1;
             if ( !(byTSR & (TSR_TMO | TSR_RETRYTMO))) {
@@ -1475,10 +1392,6 @@ void BSSvUpdateNodeTxCounter(void *hDeviceContext,
             }
         }
     }
-
-    return;
-
-
 }
 
 /*+
@@ -1519,8 +1432,6 @@ void BSSvClearNodeDBTable(void *hDeviceContext,
             memset(&pMgmt->sNodeDBTable[ii], 0, sizeof(KnownNodeDB));
         }
     }
-
-    return;
 };
 
 void s_vCheckSensitivity(void *hDeviceContext)
@@ -1584,7 +1495,6 @@ RxOkRatio = (RxCnt < 6) ? 2000:((pDevice->scStatistic.RxOkCnt * 2000) / RxCnt);
 //decide link quality
 if(pDevice->bLinkPass !=TRUE)
 {
- //  printk("s_uCalculateLinkQual-->Link disconnect and Poor quality**\n");
    pDevice->scStatistic.LinkQuality = 0;
    pDevice->scStatistic.SignalStren = 0;
 }
@@ -1608,7 +1518,6 @@ else
    pDevice->scStatistic.TxFailCount = 0;
    pDevice->scStatistic.TxNoRetryOkCount = 0;
    pDevice->scStatistic.TxRetryOkCount = 0;
-   return;
 }
 
 void BSSvClearAnyBSSJoinRecord(void *hDeviceContext)
@@ -1617,10 +1526,8 @@ void BSSvClearAnyBSSJoinRecord(void *hDeviceContext)
     PSMgmtObject    pMgmt = &(pDevice->sMgmtObj);
     unsigned int            ii;
 
-    for (ii = 0; ii < MAX_BSS_NUM; ii++) {
+	for (ii = 0; ii < MAX_BSS_NUM; ii++)
         pMgmt->sBSSList[ii].bSelected = FALSE;
-    }
-    return;
 }
 
 void s_vCheckPreEDThreshold(void *hDeviceContext)
@@ -1637,6 +1544,5 @@ void s_vCheckPreEDThreshold(void *hDeviceContext)
             BBvUpdatePreEDThreshold(pDevice, FALSE);
         }
     }
-    return;
 }
 
diff --git a/drivers/staging/vt6656/card.c b/drivers/staging/vt6656/card.c
index a49053bd7c65..9d09e9fd8e18 100644
--- a/drivers/staging/vt6656/card.c
+++ b/drivers/staging/vt6656/card.c
@@ -91,15 +91,10 @@ const WORD cwRXBCNTSFOff[MAX_RATE] =
  *      uConnectionChannel  - Channel to be set
  *  Out:
  *      none
- *
- * Return Value: TRUE if succeeded; FALSE if failed.
- *
  */
-BOOL CARDbSetMediaChannel(void *pDeviceHandler, unsigned int uConnectionChannel)
+void CARDbSetMediaChannel(void *pDeviceHandler, unsigned int uConnectionChannel)
 {
 PSDevice            pDevice = (PSDevice) pDeviceHandler;
-BOOL                bResult = TRUE;
-
 
     if (pDevice->byBBType == BB_TYPE_11A) { // 15 ~ 38
         if ((uConnectionChannel < (CB_MAX_CHANNEL_24G+1)) || (uConnectionChannel > CB_MAX_CHANNEL))
@@ -140,7 +135,6 @@ BOOL                bResult = TRUE;
         RFbRawSetPower(pDevice, pDevice->abyCCKPwrTbl[uConnectionChannel-1], RATE_1M);
     }
     ControlvWriteByte(pDevice,MESSAGE_REQUEST_MACREG,MAC_REG_CHANNEL,(BYTE)(uConnectionChannel|0x80));
-    return(bResult);
 }
 
 /*
@@ -607,7 +601,7 @@ BYTE ii;
  * Return Value: TRUE if succeeded; FALSE if failed.
  *
  */
-BOOL CARDbAddBasicRate(void *pDeviceHandler, WORD wRateIdx)
+void CARDbAddBasicRate(void *pDeviceHandler, WORD wRateIdx)
 {
 PSDevice    pDevice = (PSDevice) pDeviceHandler;
 WORD wRate = (WORD)(1<<wRateIdx);
@@ -616,8 +610,6 @@ WORD wRate = (WORD)(1<<wRateIdx);
 
     //Determines the highest basic rate.
     CARDvUpdateBasicTopRate(pDevice);
-
-    return(TRUE);
 }
 
 BOOL CARDbIsOFDMinBasicRate(void *pDeviceHandler)
@@ -1090,7 +1082,7 @@ CARDbChannelSwitch (
 
     if (byCount == 0) {
         pDevice->sMgmtObj.uCurrChannel = byNewChannel;
-        bResult = CARDbSetMediaChannel(pDevice, byNewChannel);
+	CARDbSetMediaChannel(pDevice, byNewChannel);
 
 	return bResult;
     }
diff --git a/drivers/staging/vt6656/card.h b/drivers/staging/vt6656/card.h
index 6c91343d0d14..9cf71a3d8801 100644
--- a/drivers/staging/vt6656/card.h
+++ b/drivers/staging/vt6656/card.h
@@ -60,12 +60,12 @@ typedef enum _CARD_OP_MODE {
 
 /*---------------------  Export Functions  --------------------------*/
 
-BOOL CARDbSetMediaChannel(void *pDeviceHandler,
+void CARDbSetMediaChannel(void *pDeviceHandler,
 			  unsigned int uConnectionChannel);
 void CARDvSetRSPINF(void *pDeviceHandler, BYTE byBBType);
 void vUpdateIFS(void *pDeviceHandler);
 void CARDvUpdateBasicTopRate(void *pDeviceHandler);
-BOOL CARDbAddBasicRate(void *pDeviceHandler, WORD wRateIdx);
+void CARDbAddBasicRate(void *pDeviceHandler, WORD wRateIdx);
 BOOL CARDbIsOFDMinBasicRate(void *pDeviceHandler);
 void CARDvAdjustTSF(void *pDeviceHandler, BYTE byRxRate,
 		    QWORD qwBSSTimestamp, QWORD qwLocalTSF);
diff --git a/drivers/staging/vt6656/int.c b/drivers/staging/vt6656/int.c
index c95833ac58e0..0a114231145f 100644
--- a/drivers/staging/vt6656/int.c
+++ b/drivers/staging/vt6656/int.c
@@ -92,9 +92,8 @@ void INTvWorkItem(void *Context)
 	spin_unlock_irq(&pDevice->lock);
 }
 
-int INTnsProcessData(PSDevice pDevice)
+void INTnsProcessData(PSDevice pDevice)
 {
-	int status = STATUS_SUCCESS;
 	PSINTData	pINTData;
 	PSMgmtObject	pMgmt = &(pDevice->sMgmtObj);
 	struct net_device_stats *pStats = &pDevice->stats;
@@ -218,6 +217,4 @@ int INTnsProcessData(PSDevice pDevice)
 			pDevice->scStatistic.ullTxBroadcastBytes;
 	pStats->tx_errors = pDevice->scStatistic.dwTsrErr;
 	pStats->tx_dropped = pDevice->scStatistic.dwTsrErr;
-
-	return status;
 }
diff --git a/drivers/staging/vt6656/int.h b/drivers/staging/vt6656/int.h
index 3176c8d08d6d..a5d96b968176 100644
--- a/drivers/staging/vt6656/int.h
+++ b/drivers/staging/vt6656/int.h
@@ -68,6 +68,6 @@ SINTData, *PSINTData;
 /*---------------------  Export Functions  --------------------------*/
 
 void INTvWorkItem(void *Context);
-int INTnsProcessData(PSDevice pDevice);
+void INTnsProcessData(PSDevice pDevice);
 
 #endif /* __INT_H__ */
diff --git a/drivers/staging/vt6656/ioctl.c b/drivers/staging/vt6656/ioctl.c
index 49390026dea3..1463d76895f0 100644
--- a/drivers/staging/vt6656/ioctl.c
+++ b/drivers/staging/vt6656/ioctl.c
@@ -295,6 +295,10 @@ int private_ioctl(PSDevice pDevice, struct ifreq *rq)
 			result = -EFAULT;
 			break;
 		}
+		if (sList.uItem > (ULONG_MAX - sizeof(SBSSIDList)) / sizeof(SBSSIDItem)) {
+			result = -EINVAL;
+			break;
+		}
 		pList = (PSBSSIDList)kmalloc(sizeof(SBSSIDList) + (sList.uItem * sizeof(SBSSIDItem)), (int)GFP_ATOMIC);
 		if (pList == NULL) {
 			result = -ENOMEM;
@@ -557,6 +561,10 @@ int private_ioctl(PSDevice pDevice, struct ifreq *rq)
 			result = -EFAULT;
 			break;
 		}
+		if (sNodeList.uItem > (ULONG_MAX - sizeof(SNodeList)) / sizeof(SNodeItem)) {
+			result = -ENOMEM;
+			break;
+		}
 		pNodeList = (PSNodeList)kmalloc(sizeof(SNodeList) + (sNodeList.uItem * sizeof(SNodeItem)), (int)GFP_ATOMIC);
 		if (pNodeList == NULL) {
 			result = -ENOMEM;
diff --git a/drivers/staging/vt6656/iwctl.c b/drivers/staging/vt6656/iwctl.c
index 2121205a912b..ecfda5272fa1 100644
--- a/drivers/staging/vt6656/iwctl.c
+++ b/drivers/staging/vt6656/iwctl.c
@@ -128,17 +128,6 @@ int iwctl_giwname(struct net_device *dev,
 	return 0;
 }
 
-int iwctl_giwnwid(struct net_device *dev,
-             struct iw_request_info *info,
-			 struct iw_param *wrq,
-                   char *extra)
-{
- 	//wrq->value = 0x100;
-	//wrq->disabled = 0;
-	//wrq->fixed = 1;
-	//return 0;
-  return -EOPNOTSUPP;
-}
 /*
  * Wireless Handler : set scan
  */
@@ -1939,7 +1928,6 @@ static const iw_handler		iwctl_handler[] =
 	(iw_handler) iwctl_commit,      // SIOCSIWCOMMIT
 	(iw_handler) iwctl_giwname,     // SIOCGIWNAME
 	(iw_handler) NULL,				// SIOCSIWNWID
-	(iw_handler) NULL,				// SIOCGIWNWID
 	(iw_handler) iwctl_siwfreq,		// SIOCSIWFREQ
 	(iw_handler) iwctl_giwfreq,		// SIOCGIWFREQ
 	(iw_handler) iwctl_siwmode,		// SIOCSIWMODE
diff --git a/drivers/staging/vt6656/iwctl.h b/drivers/staging/vt6656/iwctl.h
index cc48954783fc..10a240e65012 100644
--- a/drivers/staging/vt6656/iwctl.h
+++ b/drivers/staging/vt6656/iwctl.h
@@ -77,11 +77,6 @@ int iwctl_giwname(struct net_device *dev,
 			 char *wrq,
 			 char *extra);
 
-int iwctl_giwnwid(struct net_device *dev,
-             struct iw_request_info *info,
-			 struct iw_param *wrq,
-                   char *extra) ;
-
 int iwctl_giwsens(struct net_device *dev,
 			 struct iw_request_info *info,
 			 struct iw_param *wrq,
diff --git a/drivers/staging/vt6656/mac.c b/drivers/staging/vt6656/mac.c
index 26c19d1408c4..af4a29d14775 100644
--- a/drivers/staging/vt6656/mac.c
+++ b/drivers/staging/vt6656/mac.c
@@ -133,10 +133,9 @@ void MACvWriteMultiAddr(PSDevice pDevice, unsigned int uByteIdx, BYTE byData)
  *  Out:
  *      none
  *
- * Return Value: TRUE if success; otherwise FALSE
  *
  */
-BOOL MACbShutdown (PSDevice pDevice)
+void MACbShutdown(PSDevice pDevice)
 {
     CONTROLnsRequestOutAsyn(pDevice,
                         MESSAGE_TYPE_MACSHUTDOWN,
@@ -145,7 +144,6 @@ BOOL MACbShutdown (PSDevice pDevice)
                         0,
                         NULL
                         );
-    return TRUE;
 }
 
 void MACvSetBBType(PSDevice pDevice,BYTE byType)
diff --git a/drivers/staging/vt6656/mac.h b/drivers/staging/vt6656/mac.h
index 491ff5ecd04b..147ac50218d3 100644
--- a/drivers/staging/vt6656/mac.h
+++ b/drivers/staging/vt6656/mac.h
@@ -422,7 +422,7 @@
 
 void MACvSetMultiAddrByHash(PSDevice pDevice, BYTE byHashIdx);
 void MACvWriteMultiAddr(PSDevice pDevice, unsigned int uByteIdx, BYTE byData);
-BOOL MACbShutdown(PSDevice pDevice);
+void MACbShutdown(PSDevice pDevice);
 void MACvSetBBType(PSDevice pDevice, BYTE byType);
 void MACvSetMISCFifo(PSDevice pDevice, WORD wOffset, DWORD dwData);
 void MACvDisableKeyEntry(PSDevice pDevice, unsigned int uEntryIdx);
diff --git a/drivers/staging/vt6656/main_usb.c b/drivers/staging/vt6656/main_usb.c
index 541f9aa8ef6d..6a708f447651 100644
--- a/drivers/staging/vt6656/main_usb.c
+++ b/drivers/staging/vt6656/main_usb.c
@@ -900,7 +900,7 @@ static BOOL device_alloc_bufs(PSDevice pDevice) {
     }
 
     // allocate rcb mem
-    pDevice->pRCBMem = kmalloc((sizeof(RCB) * pDevice->cbRD), GFP_KERNEL);
+	pDevice->pRCBMem = kzalloc((sizeof(RCB) * pDevice->cbRD), GFP_KERNEL);
     if (pDevice->pRCBMem == NULL) {
         DBG_PRT(MSG_LEVEL_ERR,KERN_ERR "%s : alloc rx usb context failed\n", pDevice->dev->name);
         goto free_tx;
@@ -912,7 +912,6 @@ static BOOL device_alloc_bufs(PSDevice pDevice) {
     pDevice->FirstRecvMngList = NULL;
     pDevice->LastRecvMngList = NULL;
     pDevice->NumRecvFreeList = 0;
-    memset(pDevice->pRCBMem, 0, (sizeof(RCB) * pDevice->cbRD));
     pRCB = (PRCB) pDevice->pRCBMem;
 
     for (ii = 0; ii < pDevice->cbRD; ii++) {
@@ -1618,15 +1617,8 @@ static int  device_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) {
 		break;
 
 	case SIOCSIWNWID:
-        rc = -EOPNOTSUPP;
-		break;
-
 	case SIOCGIWNWID:     //0x8b03  support
-	#ifdef  WPA_SUPPLICANT_DRIVER_WEXT_SUPPORT
-          rc = iwctl_giwnwid(dev, NULL, &(wrq->u.nwid), NULL);
-	#else
-        rc = -EOPNOTSUPP;
-	#endif
+		rc = -EOPNOTSUPP;
 		break;
 
 		// Set frequency/channel
diff --git a/drivers/staging/wlags49_h2/wl_pci.c b/drivers/staging/wlags49_h2/wl_pci.c
index 1f1d98679171..2bd9b84ace8e 100644
--- a/drivers/staging/wlags49_h2/wl_pci.c
+++ b/drivers/staging/wlags49_h2/wl_pci.c
@@ -112,17 +112,10 @@ extern dbg_info_t *DbgInfo;
 #endif  // DBG
 
 /* define the PCI device Table Cardname and id tables */
-enum hermes_pci_versions {
-	CH_Agere_Systems_Mini_PCI_V1 = 0,
-};
-
 static struct pci_device_id wl_pci_tbl[] __devinitdata = {
-	{ PCI_VENDOR_ID_WL_LKM, PCI_DEVICE_ID_WL_LKM_0,
-	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Agere_Systems_Mini_PCI_V1 },
-	{ PCI_VENDOR_ID_WL_LKM, PCI_DEVICE_ID_WL_LKM_1,
-	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Agere_Systems_Mini_PCI_V1 },
-	{ PCI_VENDOR_ID_WL_LKM, PCI_DEVICE_ID_WL_LKM_2,
-	  PCI_ANY_ID, PCI_ANY_ID, 0, 0, CH_Agere_Systems_Mini_PCI_V1 },
+	{ PCI_DEVICE(PCI_VENDOR_ID_WL_LKM, PCI_DEVICE_ID_WL_LKM_0), },
+	{ PCI_DEVICE(PCI_VENDOR_ID_WL_LKM, PCI_DEVICE_ID_WL_LKM_1), },
+	{ PCI_DEVICE(PCI_VENDOR_ID_WL_LKM, PCI_DEVICE_ID_WL_LKM_2), },
 
 	{ }			/* Terminating entry */
 };
diff --git a/drivers/staging/xgifb/Makefile b/drivers/staging/xgifb/Makefile
index 3c8c7de9eadd..55e519905346 100644
--- a/drivers/staging/xgifb/Makefile
+++ b/drivers/staging/xgifb/Makefile
@@ -1,4 +1,4 @@
 obj-$(CONFIG_FB_XGI)  += xgifb.o
 
-xgifb-y := XGI_main_26.o vb_init.o vb_setmode.o vb_util.o vb_ext.o
+xgifb-y := XGI_main_26.o vb_init.o vb_setmode.o vb_util.o
 
diff --git a/drivers/staging/xgifb/XGI_main.h b/drivers/staging/xgifb/XGI_main.h
index 71aebe3e84d8..35f7b2a485e1 100644
--- a/drivers/staging/xgifb/XGI_main.h
+++ b/drivers/staging/xgifb/XGI_main.h
@@ -32,14 +32,10 @@
 #endif
 
 static DEFINE_PCI_DEVICE_TABLE(xgifb_pci_table) = {
-	{PCI_VENDOR_ID_XG, PCI_DEVICE_ID_XG_20, PCI_ANY_ID, PCI_ANY_ID,
-	 0, 0, 0},
-	{PCI_VENDOR_ID_XG, PCI_DEVICE_ID_XG_27, PCI_ANY_ID, PCI_ANY_ID,
-	 0, 0, 1},
-	{PCI_VENDOR_ID_XG, PCI_DEVICE_ID_XG_40, PCI_ANY_ID, PCI_ANY_ID,
-	 0, 0, 2},
-	{PCI_VENDOR_ID_XG, PCI_DEVICE_ID_XG_42, PCI_ANY_ID, PCI_ANY_ID,
-	 0, 0, 3},
+	{PCI_DEVICE(PCI_VENDOR_ID_XG, PCI_DEVICE_ID_XG_20)},
+	{PCI_DEVICE(PCI_VENDOR_ID_XG, PCI_DEVICE_ID_XG_27)},
+	{PCI_DEVICE(PCI_VENDOR_ID_XG, PCI_DEVICE_ID_XG_40)},
+	{PCI_DEVICE(PCI_VENDOR_ID_XG, PCI_DEVICE_ID_XG_42)},
 	{0}
 };
 
@@ -128,7 +124,6 @@ MODULE_DEVICE_TABLE(pci, xgifb_pci_table);
 /* display status */
 static int XGIfb_crt1off;
 static int XGIfb_forcecrt1 = -1;
-static int XGIfb_userom ;
 
 /* global flags */
 static int XGIfb_tvmode;
diff --git a/drivers/staging/xgifb/XGI_main_26.c b/drivers/staging/xgifb/XGI_main_26.c
index 277e408c39c5..2502c49c9c5b 100644
--- a/drivers/staging/xgifb/XGI_main_26.c
+++ b/drivers/staging/xgifb/XGI_main_26.c
@@ -21,7 +21,6 @@
 #include <linux/ioport.h>
 #include <linux/init.h>
 #include <linux/pci.h>
-#include <linux/vmalloc.h>
 #include <linux/vt_kern.h>
 #include <linux/capability.h>
 #include <linux/fs.h>
@@ -46,8 +45,7 @@
 #define GPIOG_EN    (1<<6)
 #define GPIOG_READ  (1<<1)
 
-#define XGIFB_ROM_SIZE	65536
-
+static char *forcecrt2type;
 static char *mode;
 static int vesa = -1;
 static unsigned int refresh_rate;
@@ -159,7 +157,6 @@ static int XGIfb_mode_rate_to_dclock(struct vb_device_info *XGI_Pr,
 
 	/* unsigned long  temp = 0; */
 	int Clock;
-	XGI_Pr->ROMAddr = HwDeviceExtension->pjVirtualRomBase;
 	InitTo330Pointer(HwDeviceExtension->jChipType, XGI_Pr);
 
 	RefreshRateTableIndex = XGI_GetRatePtrCRT2(HwDeviceExtension, ModeNo,
@@ -199,7 +196,6 @@ static int XGIfb_mode_rate_to_ddata(struct vb_device_info *XGI_Pr,
 	unsigned char sr_data, cr_data, cr_data2;
 	unsigned long cr_data3;
 	int A, B, C, D, E, F, temp, j;
-	XGI_Pr->ROMAddr = HwDeviceExtension->pjVirtualRomBase;
 	InitTo330Pointer(HwDeviceExtension->jChipType, XGI_Pr);
 	RefreshRateTableIndex = XGI_GetRatePtrCRT2(HwDeviceExtension, ModeNo,
 			ModeIdIndex, XGI_Pr);
@@ -387,7 +383,7 @@ static void XGIRegInit(struct vb_device_info *XGI_Pr, unsigned long BaseAddr)
 
 /* ------------------ Internal helper routines ----------------- */
 
-static int XGIfb_GetXG21DefaultLVDSModeIdx(void)
+static int XGIfb_GetXG21DefaultLVDSModeIdx(struct xgifb_video_info *xgifb_info)
 {
 
 	int found_mode = 0;
@@ -396,11 +392,11 @@ static int XGIfb_GetXG21DefaultLVDSModeIdx(void)
 	found_mode = 0;
 	while ((XGIbios_mode[XGIfb_mode_idx].mode_no != 0)
 			&& (XGIbios_mode[XGIfb_mode_idx].xres
-					<= XGI21_LCDCapList[0].LVDSHDE)) {
+					<= xgifb_info->lvds_data.LVDSHDE)) {
 		if ((XGIbios_mode[XGIfb_mode_idx].xres
-				== XGI21_LCDCapList[0].LVDSHDE)
+				== xgifb_info->lvds_data.LVDSHDE)
 				&& (XGIbios_mode[XGIfb_mode_idx].yres
-						== XGI21_LCDCapList[0].LVDSVDE)
+					== xgifb_info->lvds_data.LVDSVDE)
 				&& (XGIbios_mode[XGIfb_mode_idx].bpp == 8)) {
 			found_mode = 1;
 			break;
@@ -456,51 +452,6 @@ invalid:
 		printk(KERN_INFO "XGIfb: Invalid VESA mode 0x%x'\n", vesamode);
 }
 
-static int XGIfb_GetXG21LVDSData(struct xgifb_video_info *xgifb_info)
-{
-	u8 tmp;
-	void __iomem *data = xgifb_info->mmio_vbase + 0x20000;
-	int i, j, k;
-
-	tmp = xgifb_reg_get(XGISR, 0x1e);
-	xgifb_reg_set(XGISR, 0x1e, tmp | 4);
-
-	if ((readb(data) == 0x55) &&
-	    (readb(data + 1) == 0xAA) &&
-	    (readb(data + 0x65) & 0x1)) {
-		i = readw(data + 0x316);
-		j = readb(data + i - 1);
-		if (j == 0xff)
-			j = 1;
-
-		k = 0;
-		do {
-			XGI21_LCDCapList[k].LVDS_Capability = readw(data + i);
-			XGI21_LCDCapList[k].LVDSHT = readw(data + i + 2);
-			XGI21_LCDCapList[k].LVDSVT = readw(data + i + 4);
-			XGI21_LCDCapList[k].LVDSHDE = readw(data + i + 6);
-			XGI21_LCDCapList[k].LVDSVDE = readw(data + i + 8);
-			XGI21_LCDCapList[k].LVDSHFP = readw(data + i + 10);
-			XGI21_LCDCapList[k].LVDSVFP = readw(data + i + 12);
-			XGI21_LCDCapList[k].LVDSHSYNC = readw(data + i + 14);
-			XGI21_LCDCapList[k].LVDSVSYNC = readw(data + i + 16);
-			XGI21_LCDCapList[k].VCLKData1 = readb(data + i + 18);
-			XGI21_LCDCapList[k].VCLKData2 = readb(data + i + 19);
-			XGI21_LCDCapList[k].PSC_S1 = readb(data + i + 20);
-			XGI21_LCDCapList[k].PSC_S2 = readb(data + i + 21);
-			XGI21_LCDCapList[k].PSC_S3 = readb(data + i + 22);
-			XGI21_LCDCapList[k].PSC_S4 = readb(data + i + 23);
-			XGI21_LCDCapList[k].PSC_S5 = readb(data + i + 24);
-			i += 25;
-			j--;
-			k++;
-		} while ((j > 0) && (k < (sizeof(XGI21_LCDCapList)
-				/ sizeof(struct XGI21_LVDSCapStruct))));
-		return 1;
-	}
-	return 0;
-}
-
 static int XGIfb_validate_mode(struct xgifb_video_info *xgifb_info, int myindex)
 {
 	u16 xres, yres;
@@ -508,8 +459,8 @@ static int XGIfb_validate_mode(struct xgifb_video_info *xgifb_info, int myindex)
 
 	if (xgifb_info->chip == XG21) {
 		if (xgifb_info->display2 == XGIFB_DISP_LCD) {
-			xres = XGI21_LCDCapList[0].LVDSHDE;
-			yres = XGI21_LCDCapList[0].LVDSVDE;
+			xres = xgifb_info->lvds_data.LVDSHDE;
+			yres = xgifb_info->lvds_data.LVDSVDE;
 			if (XGIbios_mode[myindex].xres > xres)
 				return -1;
 			if (XGIbios_mode[myindex].yres > yres)
@@ -1223,7 +1174,7 @@ static int XGIfb_do_set_var(struct fb_var_screeninfo *var, int isactive,
 	if (isactive) {
 
 		XGIfb_pre_setmode(xgifb_info);
-		if (XGISetModeNew(hw_info,
+		if (XGISetModeNew(xgifb_info, hw_info,
 				  XGIbios_mode[xgifb_info->mode_idx].mode_no)
 					== 0) {
 			printk(KERN_ERR "XGIfb: Setting mode[0x%x] failed\n",
@@ -1794,17 +1745,16 @@ static void XGIfb_detect_VB(struct xgifb_video_info *xgifb_info)
 			XGIfb_crt1off = 0;
 	}
 
-	if (XGIfb_crt2type != -1)
-		/* TW: Override with option */
-		xgifb_info->display2 = XGIfb_crt2type;
-	else if (cr32 & XGI_VB_TV)
-		xgifb_info->display2 = XGIFB_DISP_TV;
-	else if (cr32 & XGI_VB_LCD)
-		xgifb_info->display2 = XGIFB_DISP_LCD;
-	else if (cr32 & XGI_VB_CRT2)
-		xgifb_info->display2 = XGIFB_DISP_CRT;
-	else
-		xgifb_info->display2 = XGIFB_DISP_NONE;
+	if (!xgifb_info->display2_force) {
+		if (cr32 & XGI_VB_TV)
+			xgifb_info->display2 = XGIFB_DISP_TV;
+		else if (cr32 & XGI_VB_LCD)
+			xgifb_info->display2 = XGIFB_DISP_LCD;
+		else if (cr32 & XGI_VB_CRT2)
+			xgifb_info->display2 = XGIFB_DISP_CRT;
+		else
+			xgifb_info->display2 = XGIFB_DISP_NONE;
+	}
 
 	if (XGIfb_tvplug != -1)
 		/* PR/TW: Override with option */
@@ -1925,8 +1875,6 @@ static int __init XGIfb_setup(char *options)
 			XGIfb_crt2type = XGIFB_DISP_LCD;
 		} else if (!strncmp(this_opt, "noypan", 6)) {
 			XGIfb_ypan = 0;
-		} else if (!strncmp(this_opt, "userom:", 7)) {
-			XGIfb_userom = xgifb_optval(this_opt, 7);
 		} else {
 			mode = this_opt;
 		}
@@ -1934,35 +1882,12 @@ static int __init XGIfb_setup(char *options)
 	return 0;
 }
 
-static unsigned char *xgifb_copy_rom(struct pci_dev *dev)
-{
-	void __iomem *rom_address;
-	unsigned char *rom_copy;
-	size_t rom_size;
-
-	rom_address = pci_map_rom(dev, &rom_size);
-	if (rom_address == NULL)
-		return NULL;
-
-	rom_copy = vzalloc(XGIFB_ROM_SIZE);
-	if (rom_copy == NULL)
-		goto done;
-
-	rom_size = min_t(size_t, rom_size, XGIFB_ROM_SIZE);
-	memcpy_fromio(rom_copy, rom_address, rom_size);
-
-done:
-	pci_unmap_rom(dev, rom_address);
-	return rom_copy;
-}
-
 static int __devinit xgifb_probe(struct pci_dev *pdev,
 		const struct pci_device_id *ent)
 {
 	u8 reg, reg1;
 	u8 CR48, CR38;
 	int ret;
-	bool xgi21_drvlcdcaplist = false;
 	struct fb_info *fb_info;
 	struct xgifb_video_info *xgifb_info;
 	struct xgi_hw_device_info *hw_info;
@@ -2001,6 +1926,11 @@ static int __devinit xgifb_probe(struct pci_dev *pdev,
 		goto error;
 	}
 
+	if (XGIfb_crt2type != -1) {
+		xgifb_info->display2 = XGIfb_crt2type;
+		xgifb_info->display2_force = true;
+	}
+
 	XGIRegInit(&xgifb_info->dev_info, (unsigned long)hw_info->pjIOAddress);
 
 	xgifb_reg_set(XGISR, IND_XGI_PASSWORD, XGI_PASSWORD);
@@ -2041,18 +1971,6 @@ static int __devinit xgifb_probe(struct pci_dev *pdev,
 	printk("XGIfb:chipid = %x\n", xgifb_info->chip);
 	hw_info->jChipType = xgifb_info->chip;
 
-	if ((xgifb_info->chip == XG21) || (XGIfb_userom)) {
-		hw_info->pjVirtualRomBase = xgifb_copy_rom(pdev);
-		if (hw_info->pjVirtualRomBase)
-			printk(KERN_INFO "XGIfb: Video ROM found and mapped to %p\n",
-			       hw_info->pjVirtualRomBase);
-		else
-			printk(KERN_INFO "XGIfb: Video ROM not found\n");
-	} else {
-		hw_info->pjVirtualRomBase = NULL;
-		printk(KERN_INFO "XGIfb: Video ROM usage disabled\n");
-	}
-
 	if (XGIfb_get_dram_size(xgifb_info)) {
 		printk(KERN_INFO "XGIfb: Fatal error: Unable to determine RAM size.\n");
 		ret = -ENODEV;
@@ -2117,8 +2035,6 @@ static int __devinit xgifb_probe(struct pci_dev *pdev,
 		CR38 = xgifb_reg_get(XGICR, 0x38);
 		if ((CR38&0xE0) == 0xC0) {
 			xgifb_info->display2 = XGIFB_DISP_LCD;
-			if (!XGIfb_GetXG21LVDSData(xgifb_info))
-				xgi21_drvlcdcaplist = true;
 		} else if ((CR38&0xE0) == 0x60) {
 			xgifb_info->hasVB = HASVB_CHRONTEL;
 		} else {
@@ -2193,6 +2109,8 @@ static int __devinit xgifb_probe(struct pci_dev *pdev,
 
 	if (xgifb_info->hasVB != HASVB_NONE)
 		XGIfb_detect_VB(xgifb_info);
+	else if (xgifb_info->chip != XG21)
+		xgifb_info->display2 = XGIFB_DISP_NONE;
 
 	if (xgifb_info->display2 == XGIFB_DISP_LCD) {
 		if (!enable_dstn) {
@@ -2254,7 +2172,7 @@ static int __devinit xgifb_probe(struct pci_dev *pdev,
 		if (xgifb_info->display2 == XGIFB_DISP_LCD &&
 		    xgifb_info->chip == XG21)
 			xgifb_info->mode_idx =
-				XGIfb_GetXG21DefaultLVDSModeIdx();
+				XGIfb_GetXG21DefaultLVDSModeIdx(xgifb_info);
 		else
 			xgifb_info->mode_idx = DEFAULT_MODE;
 	}
@@ -2264,21 +2182,6 @@ static int __devinit xgifb_probe(struct pci_dev *pdev,
 		goto error_1;
 	}
 
-	if (xgi21_drvlcdcaplist) {
-		int m;
-
-		for (m = 0; m < ARRAY_SIZE(XGI21_LCDCapList); m++)
-			if ((XGI21_LCDCapList[m].LVDSHDE ==
-				XGIbios_mode[xgifb_info->mode_idx].xres) &&
-			    (XGI21_LCDCapList[m].LVDSVDE ==
-				XGIbios_mode[xgifb_info->mode_idx].yres)) {
-				xgifb_reg_set(xgifb_info->dev_info.P3d4,
-					      0x36,
-					      m);
-				break;
-			}
-	}
-
 	/* yilin set default refresh rate */
 	xgifb_info->refresh_rate = refresh_rate;
 	if (xgifb_info->refresh_rate == 0)
@@ -2418,7 +2321,6 @@ error_1:
 error_0:
 	release_mem_region(xgifb_info->video_base, xgifb_info->video_size);
 error:
-	vfree(hw_info->pjVirtualRomBase);
 	framebuffer_release(fb_info);
 	return ret;
 }
@@ -2442,7 +2344,6 @@ static void __devexit xgifb_remove(struct pci_dev *pdev)
 	iounmap(xgifb_info->video_vbase);
 	release_mem_region(xgifb_info->mmio_base, xgifb_info->mmio_size);
 	release_mem_region(xgifb_info->video_base, xgifb_info->video_size);
-	vfree(xgifb_info->hw_info.pjVirtualRomBase);
 	framebuffer_release(fb_info);
 	pci_set_drvdata(pdev, NULL);
 }
@@ -2458,6 +2359,8 @@ static int __init xgifb_init(void)
 {
 	char *option = NULL;
 
+	if (forcecrt2type != NULL)
+		XGIfb_search_crt2type(forcecrt2type);
 	if (fb_get_options("xgifb", &option))
 		return -ENODEV;
 	XGIfb_setup(option);
@@ -2480,6 +2383,11 @@ MODULE_AUTHOR("XGITECH , Others");
 module_param(mode, charp, 0);
 module_param(vesa, int, 0);
 module_param(filter, int, 0);
+module_param(forcecrt2type, charp, 0);
+
+MODULE_PARM_DESC(forcecrt2type,
+	"\nForce the second display output type. Possible values are NONE,\n"
+	"LCD, TV, VGA, SVIDEO or COMPOSITE.\n");
 
 MODULE_PARM_DESC(mode,
 	"\nSelects the desired default display mode in the format XxYxDepth,\n"
diff --git a/drivers/staging/xgifb/XGIfb.h b/drivers/staging/xgifb/XGIfb.h
index 7611846a7039..2c866bb65a00 100644
--- a/drivers/staging/xgifb/XGIfb.h
+++ b/drivers/staging/xgifb/XGIfb.h
@@ -86,10 +86,13 @@ struct xgifb_video_info {
 	unsigned int refresh_rate;
 
 	enum xgifb_display_type display2; /* the second display output type */
+	bool display2_force;
 	unsigned char hasVB;
 	unsigned char TV_type;
 	unsigned char TV_plug;
 
+	struct XGI21_LVDSCapStruct lvds_data;
+
 	enum XGI_CHIP_TYPE chip;
 	unsigned char revision_id;
 
diff --git a/drivers/staging/xgifb/vb_ext.c b/drivers/staging/xgifb/vb_ext.c
deleted file mode 100644
index b1a25730b7ca..000000000000
--- a/drivers/staging/xgifb/vb_ext.c
+++ /dev/null
@@ -1,444 +0,0 @@
-#include <linux/io.h>
-#include <linux/types.h>
-#include "XGIfb.h"
-
-#include "vb_def.h"
-#include "vgatypes.h"
-#include "vb_struct.h"
-#include "vb_util.h"
-#include "vb_setmode.h"
-#include "vb_ext.h"
-
-/**************************************************************
- *********************** Dynamic Sense ************************
- *************************************************************/
-
-static unsigned char XGINew_Is301B(struct vb_device_info *pVBInfo)
-{
-	unsigned short flag;
-
-	flag = xgifb_reg_get(pVBInfo->Part4Port, 0x01);
-
-	if (flag > 0x0B0)
-		return 0; /* 301b */
-	else
-		return 1;
-}
-
-static unsigned char XGINew_Sense(unsigned short tempbx,
-				  unsigned short tempcx,
-				  struct vb_device_info *pVBInfo)
-{
-	unsigned short temp, i, tempch;
-
-	temp = tempbx & 0xFF;
-	xgifb_reg_set(pVBInfo->Part4Port, 0x11, temp);
-	temp = (tempbx & 0xFF00) >> 8;
-	temp |= (tempcx & 0x00FF);
-	xgifb_reg_and_or(pVBInfo->Part4Port, 0x10, ~0x1F, temp);
-
-	for (i = 0; i < 10; i++)
-		XGI_LongWait(pVBInfo);
-
-	tempch = (tempcx & 0x7F00) >> 8;
-	temp = xgifb_reg_get(pVBInfo->Part4Port, 0x03);
-	temp = temp ^ (0x0E);
-	temp &= tempch;
-
-	if (temp > 0)
-		return 1;
-	else
-		return 0;
-}
-
-static unsigned char
-XGINew_GetLCDDDCInfo(struct xgi_hw_device_info *HwDeviceExtension,
-		     struct vb_device_info *pVBInfo)
-{
-	unsigned short temp;
-
-	/* add lcd sense */
-	if (HwDeviceExtension->ulCRT2LCDType == LCD_UNKNOWN) {
-		return 0;
-	} else {
-		temp = (unsigned short) HwDeviceExtension->ulCRT2LCDType;
-		switch (HwDeviceExtension->ulCRT2LCDType) {
-		case LCD_INVALID:
-		case LCD_800x600:
-		case LCD_1024x768:
-		case LCD_1280x1024:
-			break;
-
-		case LCD_640x480:
-		case LCD_1024x600:
-		case LCD_1152x864:
-		case LCD_1280x960:
-		case LCD_1152x768:
-			temp = 0;
-			break;
-
-		case LCD_1400x1050:
-		case LCD_1280x768:
-		case LCD_1600x1200:
-			break;
-
-		case LCD_1920x1440:
-		case LCD_2048x1536:
-			temp = 0;
-			break;
-
-		default:
-			break;
-		}
-		xgifb_reg_and_or(pVBInfo->P3d4, 0x36, 0xF0, temp);
-		return 1;
-	}
-}
-
-static unsigned char XGINew_GetPanelID(struct vb_device_info *pVBInfo)
-{
-	unsigned short PanelTypeTable[16] = { SyncNN | PanelRGB18Bit
-			| Panel800x600  | _PanelType00, SyncNN | PanelRGB18Bit
-			| Panel1024x768 | _PanelType01, SyncNN | PanelRGB18Bit
-			| Panel800x600  | _PanelType02, SyncNN | PanelRGB18Bit
-			| Panel640x480  | _PanelType03, SyncNN | PanelRGB18Bit
-			| Panel1024x768 | _PanelType04, SyncNN | PanelRGB18Bit
-			| Panel1024x768 | _PanelType05, SyncNN | PanelRGB18Bit
-			| Panel1024x768 | _PanelType06, SyncNN | PanelRGB24Bit
-			| Panel1024x768 | _PanelType07, SyncNN | PanelRGB18Bit
-			| Panel800x600  | _PanelType08, SyncNN | PanelRGB18Bit
-			| Panel1024x768 | _PanelType09, SyncNN | PanelRGB18Bit
-			| Panel800x600  | _PanelType0A, SyncNN | PanelRGB18Bit
-			| Panel1024x768 | _PanelType0B, SyncNN | PanelRGB18Bit
-			| Panel1024x768 | _PanelType0C, SyncNN | PanelRGB24Bit
-			| Panel1024x768 | _PanelType0D, SyncNN | PanelRGB18Bit
-			| Panel1024x768 | _PanelType0E, SyncNN | PanelRGB18Bit
-			| Panel1024x768 | _PanelType0F };
-	unsigned short tempax, tempbx, temp;
-	/* unsigned short return_flag; */
-
-	tempax = xgifb_reg_get(pVBInfo->P3c4, 0x1A);
-	tempbx = tempax & 0x1E;
-
-	if (tempax == 0)
-		return 0;
-	else {
-		/*
-		if (!(tempax & 0x10)) {
-			if (pVBInfo->IF_DEF_LVDS == 1) {
-				tempbx = 0;
-				temp = xgifb_reg_get(pVBInfo->P3c4, 0x38);
-				if (temp & 0x40)
-					tempbx |= 0x08;
-				if (temp & 0x20)
-					tempbx |= 0x02;
-				if (temp & 0x01)
-					tempbx |= 0x01;
-
-				temp = xgifb_reg_get(pVBInfo->P3c4, 0x39);
-				if (temp & 0x80)
-					tempbx |= 0x04;
-			 } else {
-				return(0);
-			 }
-		}
-		*/
-
-		tempbx = tempbx >> 1;
-		temp = tempbx & 0x00F;
-		xgifb_reg_set(pVBInfo->P3d4, 0x36, temp);
-		tempbx--;
-		tempbx = PanelTypeTable[tempbx];
-
-		temp = (tempbx & 0xFF00) >> 8;
-		xgifb_reg_and_or(pVBInfo->P3d4, 0x37, ~(LCDSyncBit
-				| LCDRGB18Bit), temp);
-		return 1;
-	}
-}
-
-static unsigned char
-XGINew_BridgeIsEnable(struct xgi_hw_device_info *HwDeviceExtension,
-		      struct vb_device_info *pVBInfo)
-{
-	unsigned short flag;
-
-	if (XGI_BridgeIsOn(pVBInfo) == 0) {
-		flag = xgifb_reg_get(pVBInfo->Part1Port, 0x0);
-
-		if (flag & 0x050)
-			return 1;
-		else
-			return 0;
-
-	}
-	return 0;
-}
-
-static unsigned char
-XGINew_SenseHiTV(struct xgi_hw_device_info *HwDeviceExtension,
-		 struct vb_device_info *pVBInfo)
-{
-	unsigned short tempbx, tempcx, temp, i, tempch;
-
-	tempbx = *pVBInfo->pYCSenseData2;
-
-	tempcx = 0x0604;
-
-	temp = tempbx & 0xFF;
-	xgifb_reg_set(pVBInfo->Part4Port, 0x11, temp);
-	temp = (tempbx & 0xFF00) >> 8;
-	temp |= (tempcx & 0x00FF);
-	xgifb_reg_and_or(pVBInfo->Part4Port, 0x10, ~0x1F, temp);
-
-	for (i = 0; i < 10; i++)
-		XGI_LongWait(pVBInfo);
-
-	tempch = (tempcx & 0xFF00) >> 8;
-	temp = xgifb_reg_get(pVBInfo->Part4Port, 0x03);
-	temp = temp ^ (0x0E);
-	temp &= tempch;
-
-	if (temp != tempch)
-		return 0;
-
-	tempbx = *pVBInfo->pVideoSenseData2;
-
-	tempcx = 0x0804;
-	temp = tempbx & 0xFF;
-	xgifb_reg_set(pVBInfo->Part4Port, 0x11, temp);
-	temp = (tempbx & 0xFF00) >> 8;
-	temp |= (tempcx & 0x00FF);
-	xgifb_reg_and_or(pVBInfo->Part4Port, 0x10, ~0x1F, temp);
-
-	for (i = 0; i < 10; i++)
-		XGI_LongWait(pVBInfo);
-
-	tempch = (tempcx & 0xFF00) >> 8;
-	temp = xgifb_reg_get(pVBInfo->Part4Port, 0x03);
-	temp = temp ^ (0x0E);
-	temp &= tempch;
-
-	if (temp != tempch) {
-		return 0;
-	} else {
-		tempbx = 0x3FF;
-		tempcx = 0x0804;
-		temp = tempbx & 0xFF;
-		xgifb_reg_set(pVBInfo->Part4Port, 0x11, temp);
-		temp = (tempbx & 0xFF00) >> 8;
-		temp |= (tempcx & 0x00FF);
-		xgifb_reg_and_or(pVBInfo->Part4Port, 0x10, ~0x1F, temp);
-
-		for (i = 0; i < 10; i++)
-			XGI_LongWait(pVBInfo);
-
-		tempch = (tempcx & 0xFF00) >> 8;
-		temp = xgifb_reg_get(pVBInfo->Part4Port, 0x03);
-		temp = temp ^ (0x0E);
-		temp &= tempch;
-
-		if (temp != tempch)
-			return 1;
-		else
-			return 0;
-	}
-}
-
-void XGI_GetSenseStatus(struct xgi_hw_device_info *HwDeviceExtension,
-			struct vb_device_info *pVBInfo)
-{
-	unsigned short  tempax = 0, tempbx, tempcx, temp,
-			P2reg0 = 0, SenseModeNo = 0,
-			OutputSelect = *pVBInfo->pOutputSelect,
-			ModeIdIndex, i;
-	pVBInfo->BaseAddr = (unsigned long) HwDeviceExtension->pjIOAddress;
-
-	if (pVBInfo->IF_DEF_LVDS == 1) {
-		/* ynlai 02/27/2002 */
-		tempax = xgifb_reg_get(pVBInfo->P3c4, 0x1A);
-		tempbx = xgifb_reg_get(pVBInfo->P3c4, 0x1B);
-		tempax = ((tempax & 0xFE) >> 1) | (tempbx << 8);
-		if (tempax == 0x00) { /* Get Panel id from DDC */
-			temp = XGINew_GetLCDDDCInfo(HwDeviceExtension, pVBInfo);
-			if (temp == 1) { /* LCD connect */
-				/* set CR39 bit0="1" */
-				xgifb_reg_and_or(pVBInfo->P3d4,
-						 0x39, 0xFF, 0x01);
-				/* clean CR37 bit4="0" */
-				xgifb_reg_and_or(pVBInfo->P3d4,
-						 0x37, 0xEF, 0x00);
-				temp = LCDSense;
-			} else { /* LCD don't connect */
-				temp = 0;
-			}
-		} else {
-			XGINew_GetPanelID(pVBInfo);
-			temp = LCDSense;
-		}
-
-		tempbx = ~(LCDSense | AVIDEOSense | SVIDEOSense);
-		xgifb_reg_and_or(pVBInfo->P3d4, 0x32, tempbx, temp);
-	} else { /* for 301 */
-		if (pVBInfo->VBInfo & SetCRT2ToHiVisionTV) { /* for HiVision */
-			tempax = xgifb_reg_get(pVBInfo->P3c4, 0x38);
-			temp = tempax & 0x01;
-			tempax = xgifb_reg_get(pVBInfo->P3c4, 0x3A);
-			temp = temp | (tempax & 0x02);
-			xgifb_reg_and_or(pVBInfo->P3d4, 0x32, 0xA0, temp);
-		} else {
-			if (XGI_BridgeIsOn(pVBInfo)) {
-				P2reg0 = xgifb_reg_get(pVBInfo->Part2Port,
-						       0x00);
-				if (!XGINew_BridgeIsEnable(HwDeviceExtension,
-							   pVBInfo)) {
-					SenseModeNo = 0x2e;
-				/* xgifb_reg_set(pVBInfo->P3d4, 0x30, 0x41);
-				 * XGISetModeNew(HwDeviceExtension, 0x2e);
-				 * // ynlai InitMode */
-
-					temp = XGI_SearchModeID(SenseModeNo,
-								&ModeIdIndex,
-								pVBInfo);
-					XGI_GetVGAType(HwDeviceExtension,
-						       pVBInfo);
-					XGI_GetVBType(pVBInfo);
-					pVBInfo->SetFlag = 0x00;
-					pVBInfo->ModeType = ModeVGA;
-					pVBInfo->VBInfo = SetCRT2ToRAMDAC |
-							  LoadDACFlag |
-							  SetInSlaveMode;
-					XGI_GetLCDInfo(0x2e,
-						       ModeIdIndex,
-						       pVBInfo);
-					XGI_GetTVInfo(0x2e,
-						      ModeIdIndex,
-						      pVBInfo);
-					XGI_EnableBridge(HwDeviceExtension,
-							 pVBInfo);
-					XGI_SetCRT2Group301(SenseModeNo,
-							    HwDeviceExtension,
-							    pVBInfo);
-					XGI_SetCRT2ModeRegs(0x2e,
-							    HwDeviceExtension,
-							    pVBInfo);
-					/* XGI_DisableBridge(HwDeviceExtension,
-					 *		     pVBInfo ) ; */
-					/* Display Off 0212 */
-					xgifb_reg_and_or(pVBInfo->P3c4,
-							 0x01,
-							 0xDF,
-							 0x20);
-					for (i = 0; i < 20; i++)
-						XGI_LongWait(pVBInfo);
-				}
-				xgifb_reg_set(pVBInfo->Part2Port, 0x00, 0x1c);
-				tempax = 0;
-				tempbx = *pVBInfo->pRGBSenseData;
-
-				if (!(XGINew_Is301B(pVBInfo)))
-					tempbx = *pVBInfo->pRGBSenseData2;
-
-				tempcx = 0x0E08;
-				if (XGINew_Sense(tempbx, tempcx, pVBInfo)) {
-					if (XGINew_Sense(tempbx,
-							 tempcx,
-							 pVBInfo))
-						tempax |= Monitor2Sense;
-				}
-
-				if (pVBInfo->VBType & VB_XGI301C)
-					xgifb_reg_or(pVBInfo->Part4Port,
-						     0x0d,
-						     0x04);
-
-				/* add by kuku for Multi-adapter sense HiTV */
-				if (XGINew_SenseHiTV(HwDeviceExtension,
-						     pVBInfo)) {
-					tempax |= HiTVSense;
-					if ((pVBInfo->VBType & VB_XGI301C))
-						tempax ^= (HiTVSense |
-							   YPbPrSense);
-				}
-
-				/* start */
-				if (!(tempax & (HiTVSense | YPbPrSense))) {
-					tempbx = *pVBInfo->pYCSenseData;
-					if (!(XGINew_Is301B(pVBInfo)))
-						tempbx = *pVBInfo->pYCSenseData2;
-					tempcx = 0x0604;
-					if (XGINew_Sense(tempbx,
-							 tempcx,
-							 pVBInfo)) {
-						if (XGINew_Sense(tempbx,
-								 tempcx,
-								 pVBInfo))
-							tempax |= SVIDEOSense;
-					}
-
-					if (OutputSelect & BoardTVType) {
-						tempbx = *pVBInfo->pVideoSenseData;
-
-						if (!(XGINew_Is301B(pVBInfo)))
-							tempbx = *pVBInfo->pVideoSenseData2;
-
-						tempcx = 0x0804;
-						if (XGINew_Sense(tempbx,
-								 tempcx,
-								 pVBInfo)) {
-							if (XGINew_Sense(tempbx,
-									 tempcx,
-									 pVBInfo))
-								tempax |= AVIDEOSense;
-						}
-					} else {
-						if (!(tempax & SVIDEOSense)) {
-							tempbx = *pVBInfo->pVideoSenseData;
-
-							if (!(XGINew_Is301B(pVBInfo)))
-								tempbx = *pVBInfo->pVideoSenseData2;
-
-							tempcx = 0x0804;
-							if (XGINew_Sense(tempbx,
-									 tempcx,
-									 pVBInfo)) {
-								if (XGINew_Sense(tempbx, tempcx, pVBInfo))
-									tempax |= AVIDEOSense;
-							}
-						}
-					}
-				}
-			} /* end */
-			if (!(tempax & Monitor2Sense)) {
-				if (XGINew_SenseLCD(HwDeviceExtension, pVBInfo))
-					tempax |= LCDSense;
-			}
-			tempbx = 0;
-			tempcx = 0;
-			XGINew_Sense(tempbx, tempcx, pVBInfo);
-
-			xgifb_reg_and_or(pVBInfo->P3d4, 0x32, ~0xDF, tempax);
-			xgifb_reg_set(pVBInfo->Part2Port, 0x00, P2reg0);
-
-			if (!(P2reg0 & 0x20)) {
-				pVBInfo->VBInfo = DisableCRT2Display;
-				/* XGI_SetCRT2Group301(SenseModeNo,
-				 *		       HwDeviceExtension,
-				 *		       pVBInfo); */
-			}
-		}
-	}
-	XGI_DisableBridge(HwDeviceExtension, pVBInfo); /* shampoo 0226 */
-
-}
-
-unsigned short XGINew_SenseLCD(struct xgi_hw_device_info *HwDeviceExtension,
-			       struct vb_device_info *pVBInfo)
-{
-	/* unsigned short SoftSetting ; */
-	unsigned short temp;
-
-	temp = XGINew_GetLCDDDCInfo(HwDeviceExtension, pVBInfo);
-
-	return temp;
-}
diff --git a/drivers/staging/xgifb/vb_ext.h b/drivers/staging/xgifb/vb_ext.h
deleted file mode 100644
index 0b1f55b4242f..000000000000
--- a/drivers/staging/xgifb/vb_ext.h
+++ /dev/null
@@ -1,9 +0,0 @@
-#ifndef _VBEXT_
-#define _VBEXT_
-
-extern void XGI_GetSenseStatus(struct xgi_hw_device_info *HwDeviceExtension,
-			       struct vb_device_info *pVBInfo);
-extern unsigned short XGINew_SenseLCD(struct xgi_hw_device_info *,
-				      struct vb_device_info *pVBInfo);
-
-#endif
diff --git a/drivers/staging/xgifb/vb_init.c b/drivers/staging/xgifb/vb_init.c
index 9e890a17fbc2..4ccd988ffd7c 100644
--- a/drivers/staging/xgifb/vb_init.c
+++ b/drivers/staging/xgifb/vb_init.c
@@ -1,6 +1,7 @@
 #include <linux/types.h>
 #include <linux/delay.h> /* udelay */
 #include <linux/pci.h>
+#include <linux/vmalloc.h>
 
 #include "vgatypes.h"
 #include "XGIfb.h"
@@ -10,7 +11,6 @@
 #include "vb_util.h"
 #include "vb_setmode.h"
 #include "vb_init.h"
-#include "vb_ext.h"
 
 
 #include <linux/io.h>
@@ -35,6 +35,8 @@ static const unsigned short XGINew_DDRDRAM_TYPE20[12][5] = {
 	{ 2, 12,  9,  8, 0x35},
 	{ 2, 12,  8,  4, 0x31} };
 
+#define XGIFB_ROM_SIZE	65536
+
 static unsigned char
 XGINew_GetXG20DRAMType(struct xgi_hw_device_info *HwDeviceExtension,
 		       struct vb_device_info *pVBInfo)
@@ -1068,20 +1070,20 @@ static int XGINew_DDRSizing340(struct xgi_hw_device_info *HwDeviceExtension,
 	return 0;
 }
 
-static void XGINew_SetDRAMSize_340(struct xgi_hw_device_info *HwDeviceExtension,
+static void XGINew_SetDRAMSize_340(struct xgifb_video_info *xgifb_info,
+		struct xgi_hw_device_info *HwDeviceExtension,
 		struct vb_device_info *pVBInfo)
 {
 	unsigned short data;
 
-	pVBInfo->ROMAddr = HwDeviceExtension->pjVirtualRomBase;
 	pVBInfo->FBAddr = HwDeviceExtension->pjVideoMemoryAddress;
 
-	XGISetModeNew(HwDeviceExtension, 0x2e);
+	XGISetModeNew(xgifb_info, HwDeviceExtension, 0x2e);
 
 	data = xgifb_reg_get(pVBInfo->P3c4, 0x21);
 	/* disable read cache */
 	xgifb_reg_set(pVBInfo->P3c4, 0x21, (unsigned short) (data & 0xDF));
-	XGI_DisplayOff(HwDeviceExtension, pVBInfo);
+	XGI_DisplayOff(xgifb_info, HwDeviceExtension, pVBInfo);
 
 	/* data = xgifb_reg_get(pVBInfo->P3c4, 0x1); */
 	/* data |= 0x20 ; */
@@ -1092,118 +1094,100 @@ static void XGINew_SetDRAMSize_340(struct xgi_hw_device_info *HwDeviceExtension,
 	xgifb_reg_set(pVBInfo->P3c4, 0x21, (unsigned short) (data | 0x20));
 }
 
-static void ReadVBIOSTablData(unsigned char ChipType,
+static u8 *xgifb_copy_rom(struct pci_dev *dev, size_t *rom_size)
+{
+	void __iomem *rom_address;
+	u8 *rom_copy;
+
+	rom_address = pci_map_rom(dev, rom_size);
+	if (rom_address == NULL)
+		return NULL;
+
+	rom_copy = vzalloc(XGIFB_ROM_SIZE);
+	if (rom_copy == NULL)
+		goto done;
+
+	*rom_size = min_t(size_t, *rom_size, XGIFB_ROM_SIZE);
+	memcpy_fromio(rom_copy, rom_address, *rom_size);
+
+done:
+	pci_unmap_rom(dev, rom_address);
+	return rom_copy;
+}
+
+static void xgifb_read_vbios(struct pci_dev *pdev,
 			      struct vb_device_info *pVBInfo)
 {
-	volatile unsigned char *pVideoMemory =
-		(unsigned char *) pVBInfo->ROMAddr;
+	struct xgifb_video_info *xgifb_info = pci_get_drvdata(pdev);
+	u8 *vbios;
 	unsigned long i;
-	unsigned char j, k;
-	/* Volari customize data area end */
-
-	if (ChipType == XG21) {
-		pVBInfo->IF_DEF_LVDS = 0;
-		if (pVideoMemory[0x65] & 0x1) {
-			pVBInfo->IF_DEF_LVDS = 1;
-			i = pVideoMemory[0x316] | (pVideoMemory[0x317] << 8);
-			j = pVideoMemory[i - 1];
-			if (j != 0xff) {
-				k = 0;
-				do {
-					pVBInfo->XG21_LVDSCapList[k].
-						 LVDS_Capability
-						= pVideoMemory[i] |
-						 (pVideoMemory[i + 1] << 8);
-					pVBInfo->XG21_LVDSCapList[k].LVDSHT
-						= pVideoMemory[i + 2] |
-						  (pVideoMemory[i + 3] << 8);
-					pVBInfo->XG21_LVDSCapList[k].LVDSVT
-						= pVideoMemory[i + 4] |
-						  (pVideoMemory[i + 5] << 8);
-					pVBInfo->XG21_LVDSCapList[k].LVDSHDE
-						= pVideoMemory[i + 6] |
-						  (pVideoMemory[i + 7] << 8);
-					pVBInfo->XG21_LVDSCapList[k].LVDSVDE
-						= pVideoMemory[i + 8] |
-						  (pVideoMemory[i + 9] << 8);
-					pVBInfo->XG21_LVDSCapList[k].LVDSHFP
-						= pVideoMemory[i + 10] |
-						  (pVideoMemory[i + 11] << 8);
-					pVBInfo->XG21_LVDSCapList[k].LVDSVFP
-						= pVideoMemory[i + 12] |
-						  (pVideoMemory[i + 13] << 8);
-					pVBInfo->XG21_LVDSCapList[k].LVDSHSYNC
-						= pVideoMemory[i + 14] |
-						  (pVideoMemory[i + 15] << 8);
-					pVBInfo->XG21_LVDSCapList[k].LVDSVSYNC
-						= pVideoMemory[i + 16] |
-						  (pVideoMemory[i + 17] << 8);
-					pVBInfo->XG21_LVDSCapList[k].VCLKData1
-						= pVideoMemory[i + 18];
-					pVBInfo->XG21_LVDSCapList[k].VCLKData2
-						= pVideoMemory[i + 19];
-					pVBInfo->XG21_LVDSCapList[k].PSC_S1
-						= pVideoMemory[i + 20];
-					pVBInfo->XG21_LVDSCapList[k].PSC_S2
-						= pVideoMemory[i + 21];
-					pVBInfo->XG21_LVDSCapList[k].PSC_S3
-						= pVideoMemory[i + 22];
-					pVBInfo->XG21_LVDSCapList[k].PSC_S4
-						= pVideoMemory[i + 23];
-					pVBInfo->XG21_LVDSCapList[k].PSC_S5
-						= pVideoMemory[i + 24];
-					i += 25;
-					j--;
-					k++;
-				} while ((j > 0) &&
-					 (k < (sizeof(XGI21_LCDCapList) /
-					       sizeof(struct
-							XGI21_LVDSCapStruct))));
-			} else {
-				pVBInfo->XG21_LVDSCapList[0].LVDS_Capability
-						= pVideoMemory[i] |
-						  (pVideoMemory[i + 1] << 8);
-				pVBInfo->XG21_LVDSCapList[0].LVDSHT
-						= pVideoMemory[i + 2] |
-						  (pVideoMemory[i + 3] << 8);
-				pVBInfo->XG21_LVDSCapList[0].LVDSVT
-						= pVideoMemory[i + 4] |
-						  (pVideoMemory[i + 5] << 8);
-				pVBInfo->XG21_LVDSCapList[0].LVDSHDE
-						= pVideoMemory[i + 6] |
-						  (pVideoMemory[i + 7] << 8);
-				pVBInfo->XG21_LVDSCapList[0].LVDSVDE
-						= pVideoMemory[i + 8] |
-						  (pVideoMemory[i + 9] << 8);
-				pVBInfo->XG21_LVDSCapList[0].LVDSHFP
-						= pVideoMemory[i + 10] |
-						  (pVideoMemory[i + 11] << 8);
-				pVBInfo->XG21_LVDSCapList[0].LVDSVFP
-						= pVideoMemory[i + 12] |
-						  (pVideoMemory[i + 13] << 8);
-				pVBInfo->XG21_LVDSCapList[0].LVDSHSYNC
-						= pVideoMemory[i + 14] |
-						  (pVideoMemory[i + 15] << 8);
-				pVBInfo->XG21_LVDSCapList[0].LVDSVSYNC
-						= pVideoMemory[i + 16] |
-						  (pVideoMemory[i + 17] << 8);
-				pVBInfo->XG21_LVDSCapList[0].VCLKData1
-						= pVideoMemory[i + 18];
-				pVBInfo->XG21_LVDSCapList[0].VCLKData2
-						= pVideoMemory[i + 19];
-				pVBInfo->XG21_LVDSCapList[0].PSC_S1
-						= pVideoMemory[i + 20];
-				pVBInfo->XG21_LVDSCapList[0].PSC_S2
-						= pVideoMemory[i + 21];
-				pVBInfo->XG21_LVDSCapList[0].PSC_S3
-						= pVideoMemory[i + 22];
-				pVBInfo->XG21_LVDSCapList[0].PSC_S4
-						= pVideoMemory[i + 23];
-				pVBInfo->XG21_LVDSCapList[0].PSC_S5
-						= pVideoMemory[i + 24];
-			}
-		}
+	unsigned char j;
+	struct XGI21_LVDSCapStruct *lvds;
+	size_t vbios_size;
+	int entry;
+
+	if (xgifb_info->chip != XG21)
+		return;
+	pVBInfo->IF_DEF_LVDS = 0;
+	vbios = xgifb_copy_rom(pdev, &vbios_size);
+	if (vbios == NULL) {
+		dev_err(&pdev->dev, "video BIOS not available\n");
+		return;
+	}
+	if (vbios_size <= 0x65)
+		goto error;
+	/*
+	 * The user can ignore the LVDS bit in the BIOS and force the display
+	 * type.
+	 */
+	if (!(vbios[0x65] & 0x1) &&
+	    (!xgifb_info->display2_force ||
+	     xgifb_info->display2 != XGIFB_DISP_LCD)) {
+		vfree(vbios);
+		return;
 	}
+	if (vbios_size <= 0x317)
+		goto error;
+	i = vbios[0x316] | (vbios[0x317] << 8);
+	if (vbios_size <= i - 1)
+		goto error;
+	j = vbios[i - 1];
+	if (j == 0)
+		goto error;
+	if (j == 0xff)
+		j = 1;
+	/*
+	 * Read the LVDS table index scratch register set by the BIOS.
+	 */
+	entry = xgifb_reg_get(xgifb_info->dev_info.P3d4, 0x36);
+	if (entry >= j)
+		entry = 0;
+	i += entry * 25;
+	lvds = &xgifb_info->lvds_data;
+	if (vbios_size <= i + 24)
+		goto error;
+	lvds->LVDS_Capability	= vbios[i]	| (vbios[i + 1] << 8);
+	lvds->LVDSHT		= vbios[i + 2]	| (vbios[i + 3] << 8);
+	lvds->LVDSVT		= vbios[i + 4]	| (vbios[i + 5] << 8);
+	lvds->LVDSHDE		= vbios[i + 6]	| (vbios[i + 7] << 8);
+	lvds->LVDSVDE		= vbios[i + 8]	| (vbios[i + 9] << 8);
+	lvds->LVDSHFP		= vbios[i + 10]	| (vbios[i + 11] << 8);
+	lvds->LVDSVFP		= vbios[i + 12]	| (vbios[i + 13] << 8);
+	lvds->LVDSHSYNC		= vbios[i + 14]	| (vbios[i + 15] << 8);
+	lvds->LVDSVSYNC		= vbios[i + 16]	| (vbios[i + 17] << 8);
+	lvds->VCLKData1		= vbios[i + 18];
+	lvds->VCLKData2		= vbios[i + 19];
+	lvds->PSC_S1		= vbios[i + 20];
+	lvds->PSC_S2		= vbios[i + 21];
+	lvds->PSC_S3		= vbios[i + 22];
+	lvds->PSC_S4		= vbios[i + 23];
+	lvds->PSC_S5		= vbios[i + 24];
+	vfree(vbios);
+	pVBInfo->IF_DEF_LVDS = 1;
+	return;
+error:
+	dev_err(&pdev->dev, "video BIOS corrupted\n");
+	vfree(vbios);
 }
 
 static void XGINew_ChkSenseStatus(struct xgi_hw_device_info *HwDeviceExtension,
@@ -1336,18 +1320,57 @@ static void XGINew_SetModeScratch(struct xgi_hw_device_info *HwDeviceExtension,
 
 }
 
+static unsigned short XGINew_SenseLCD(struct xgi_hw_device_info
+							*HwDeviceExtension,
+				      struct vb_device_info *pVBInfo)
+{
+	unsigned short temp;
+
+	/* add lcd sense */
+	if (HwDeviceExtension->ulCRT2LCDType == LCD_UNKNOWN) {
+		return 0;
+	} else {
+		temp = (unsigned short) HwDeviceExtension->ulCRT2LCDType;
+		switch (HwDeviceExtension->ulCRT2LCDType) {
+		case LCD_INVALID:
+		case LCD_800x600:
+		case LCD_1024x768:
+		case LCD_1280x1024:
+			break;
+
+		case LCD_640x480:
+		case LCD_1024x600:
+		case LCD_1152x864:
+		case LCD_1280x960:
+		case LCD_1152x768:
+			temp = 0;
+			break;
+
+		case LCD_1400x1050:
+		case LCD_1280x768:
+		case LCD_1600x1200:
+			break;
+
+		case LCD_1920x1440:
+		case LCD_2048x1536:
+			temp = 0;
+			break;
+
+		default:
+			break;
+		}
+		xgifb_reg_and_or(pVBInfo->P3d4, 0x36, 0xF0, temp);
+		return 1;
+	}
+}
+
 static void XGINew_GetXG21Sense(struct xgi_hw_device_info *HwDeviceExtension,
 		struct vb_device_info *pVBInfo)
 {
 	unsigned char Temp;
-	volatile unsigned char *pVideoMemory =
-			(unsigned char *) pVBInfo->ROMAddr;
-
-	pVBInfo->IF_DEF_LVDS = 0;
 
 #if 1
-	if ((pVideoMemory[0x65] & 0x01)) { /* For XG21 LVDS */
-		pVBInfo->IF_DEF_LVDS = 1;
+	if (pVBInfo->IF_DEF_LVDS) { /* For XG21 LVDS */
 		xgifb_reg_or(pVBInfo->P3d4, 0x32, LCDSense);
 		/* LVDS on chip */
 		xgifb_reg_and_or(pVBInfo->P3d4, 0x38, ~0xE0, 0xC0);
@@ -1393,7 +1416,6 @@ static void XGINew_GetXG27Sense(struct xgi_hw_device_info *HwDeviceExtension,
 	xgifb_reg_set(pVBInfo->P3d4, 0x4A, bCR4A);
 
 	if (Temp <= 0x02) {
-		pVBInfo->IF_DEF_LVDS = 1;
 		/* LVDS setting */
 		xgifb_reg_and_or(pVBInfo->P3d4, 0x38, ~0xE0, 0xC0);
 		xgifb_reg_set(pVBInfo->P3d4, 0x30, 0x21);
@@ -1451,24 +1473,15 @@ unsigned char XGIInitNew(struct pci_dev *pdev)
 	struct vb_device_info *pVBInfo = &VBINF;
 	unsigned char i, temp = 0, temp1;
 	/* VBIOSVersion[5]; */
-	volatile unsigned char *pVideoMemory;
 
 	/* unsigned long j, k; */
 
-	pVBInfo->ROMAddr = HwDeviceExtension->pjVirtualRomBase;
-
 	pVBInfo->FBAddr = HwDeviceExtension->pjVideoMemoryAddress;
 
 	pVBInfo->BaseAddr = (unsigned long) HwDeviceExtension->pjIOAddress;
 
-	pVideoMemory = (unsigned char *) pVBInfo->ROMAddr;
-
 	/* Newdebugcode(0x99); */
 
-
-	/* if (pVBInfo->ROMAddr == 0) */
-	/* return(0); */
-
 	if (pVBInfo->FBAddr == NULL) {
 		printk("\n pVBInfo->FBAddr == 0 ");
 		return 0;
@@ -1516,8 +1529,7 @@ unsigned char XGIInitNew(struct pci_dev *pdev)
 
 	InitTo330Pointer(HwDeviceExtension->jChipType, pVBInfo);
 
-	/* ReadVBIOSData */
-	ReadVBIOSTablData(HwDeviceExtension->jChipType, pVBInfo);
+	xgifb_read_vbios(pdev, pVBInfo);
 
 	/* 1.Openkey */
 	xgifb_reg_set(pVBInfo->P3c4, 0x05, 0x86);
@@ -1774,7 +1786,7 @@ unsigned char XGIInitNew(struct pci_dev *pdev)
 					 pVBInfo);
 
 	printk("20");
-	XGINew_SetDRAMSize_340(HwDeviceExtension, pVBInfo);
+	XGINew_SetDRAMSize_340(xgifb_info, HwDeviceExtension, pVBInfo);
 	printk("21");
 
 	printk("22");
diff --git a/drivers/staging/xgifb/vb_setmode.c b/drivers/staging/xgifb/vb_setmode.c
index 81c0cc41bb42..67a316c3c108 100644
--- a/drivers/staging/xgifb/vb_setmode.c
+++ b/drivers/staging/xgifb/vb_setmode.c
@@ -67,11 +67,6 @@ void InitTo330Pointer(unsigned char ChipType, struct vb_device_info *pVBInfo)
 	pVBInfo->XGINEWUB_CRT1Table
 			= (struct XGI_CRT1TableStruct *) XGI_CRT1Table;
 
-	/* add for new UNIVGABIOS */
-	/* XGINew_UBLCDDataTable =
-	 *	(struct XGI_LCDDataTablStruct *) XGI_LCDDataTable; */
-	/* XGINew_UBTVDataTable = (XGI_TVDataTablStruct *) XGI_TVDataTable; */
-
 	pVBInfo->MCLKData = (struct XGI_MCLKDataStruct *) XGI340New_MCLKData;
 	pVBInfo->ECLKData = (struct XGI_ECLKDataStruct *) XGI340_ECLKData;
 	pVBInfo->VCLKData = (struct XGI_VCLKDataStruct *) XGI_VCLKData;
@@ -148,9 +143,6 @@ void InitTo330Pointer(unsigned char ChipType, struct vb_device_info *pVBInfo)
 	else
 		pVBInfo->LCDCapList = XGI_LCDCapList;
 
-	if ((ChipType == XG21) || (ChipType == XG27))
-		pVBInfo->XG21_LVDSCapList = XGI21_LCDCapList;
-
 	pVBInfo->XGI_TVDelayList = XGI301TVDelayList;
 	pVBInfo->XGI_TVDelayList2 = XGI301TVDelayList2;
 
@@ -236,28 +228,6 @@ static void XGI_SetSeqRegs(unsigned short ModeNo,
 	}
 }
 
-static void XGI_SetMiscRegs(unsigned short StandTableIndex,
-			    struct vb_device_info *pVBInfo)
-{
-	unsigned char Miscdata;
-
-	/* Get Misc from file */
-	Miscdata = pVBInfo->StandTable[StandTableIndex].MISC;
-	/*
-	if (pVBInfo->VBType & (VB_XGI301B |
-			       VB_XGI302B |
-			       VB_XGI301LV |
-			       VB_XGI302LV |
-			       VB_XGI301C)) {
-		if (pVBInfo->VBInfo & SetCRT2ToLCDA) {
-			Miscdata |= 0x0C;
-		}
-	}
-	*/
-
-	outb(Miscdata, pVBInfo->P3c2); /* Set Misc(3c2) */
-}
-
 static void XGI_SetCRTCRegs(struct xgi_hw_device_info *HwDeviceExtension,
 			    unsigned short StandTableIndex,
 			    struct vb_device_info *pVBInfo)
@@ -274,16 +244,6 @@ static void XGI_SetCRTCRegs(struct xgi_hw_device_info *HwDeviceExtension,
 		CRTCdata = pVBInfo->StandTable[StandTableIndex].CRTC[i];
 		xgifb_reg_set(pVBInfo->P3d4, i, CRTCdata); /* Set CRTC(3d4) */
 	}
-	/*
-	if ((HwDeviceExtension->jChipType == XGI_630) &&
-	    (HwDeviceExtension->jChipRevision == 0x30)) {
-		if (pVBInfo->VBInfo & SetInSlaveMode) {
-			if (pVBInfo->VBInfo & (SetCRT2ToLCD | SetCRT2ToTV)) {
-				xgifb_reg_set(pVBInfo->P3d4, 0x18, 0xFE);
-			}
-		}
-	}
-	*/
 }
 
 static void XGI_SetATTRegs(unsigned short ModeNo,
@@ -530,10 +490,6 @@ static void XGI_SetCRT1Timing_H(struct vb_device_info *pVBInfo,
 	unsigned char data, data1, pushax;
 	unsigned short i, j;
 
-	/* xgifb_reg_set(pVBInfo->P3d4, 0x51, 0); */
-	/* xgifb_reg_set(pVBInfo->P3d4, 0x56, 0); */
-	/* xgifb_reg_and_or(pVBInfo->P3d4, 0x11, 0x7f, 0x00); */
-
 	/* unlock cr0-7 */
 	data = (unsigned char) xgifb_reg_get(pVBInfo->P3d4, 0x11);
 	data &= 0x7F;
@@ -595,10 +551,6 @@ static void XGI_SetCRT1Timing_V(unsigned short ModeIdIndex,
 	unsigned char data;
 	unsigned short i, j;
 
-	/* xgifb_reg_set(pVBInfo->P3d4, 0x51, 0); */
-	/* xgifb_reg_set(pVBInfo->P3d4, 0x56, 0); */
-	/* xgifb_reg_and_or(pVBInfo->P3d4, 0x11, 0x7f, 0x00); */
-
 	for (i = 0x00; i <= 0x01; i++) {
 		data = pVBInfo->TimingV[0].data[i];
 		xgifb_reg_set(pVBInfo->P3d4, (unsigned short) (i + 6), data);
@@ -976,6 +928,20 @@ static void XGI_SetXG27CRTC(unsigned short ModeNo,
 	}
 }
 
+static void XGI_SetXG27FPBits(struct vb_device_info *pVBInfo)
+{
+	unsigned char temp;
+
+	/* D[1:0] 01: 18bit, 00: dual 12, 10: single 24 */
+	temp = xgifb_reg_get(pVBInfo->P3d4, 0x37);
+	temp = (temp & 3) << 6;
+	/* SR06[7]0: dual 12/1: single 24 [6] 18bit Dither <= 0 h/w recommend */
+	xgifb_reg_and_or(pVBInfo->P3c4, 0x06, ~0xc0, temp & 0x80);
+	/* SR09[7] enable FP output, SR09[6] 1: sigle 18bits, 0: 24bits */
+	xgifb_reg_and_or(pVBInfo->P3c4, 0x09, ~0xc0, temp | 0x80);
+
+}
+
 static void xgifb_set_lcd(int chip_id,
 			  struct vb_device_info *pVBInfo,
 			  unsigned short RefreshRateTableIndex,
@@ -1088,6 +1054,20 @@ static void XGI_UpdateXG21CRTC(unsigned short ModeNo,
 	}
 }
 
+static unsigned short XGI_GetResInfo(unsigned short ModeNo,
+		unsigned short ModeIdIndex, struct vb_device_info *pVBInfo)
+{
+	unsigned short resindex;
+
+	if (ModeNo <= 0x13)
+		/* si+St_ResInfo */
+		resindex = pVBInfo->SModeIDTable[ModeIdIndex].St_ResInfo;
+	else
+		/* si+Ext_ResInfo */
+		resindex = pVBInfo->EModeIDTable[ModeIdIndex].Ext_RESINFO;
+	return resindex;
+}
+
 static void XGI_SetCRT1DE(struct xgi_hw_device_info *HwDeviceExtension,
 		unsigned short ModeNo, unsigned short ModeIdIndex,
 		unsigned short RefreshRateTableIndex,
@@ -1127,9 +1107,6 @@ static void XGI_SetCRT1DE(struct xgi_hw_device_info *HwDeviceExtension,
 
 	tempcx = 8;
 
-	/* if (!(modeflag & Charx8Dot)) */
-	/* tempcx = 9; */
-
 	tempax /= tempcx;
 	tempax -= 1;
 	tempbx -= 1;
@@ -1163,20 +1140,6 @@ static void XGI_SetCRT1DE(struct xgi_hw_device_info *HwDeviceExtension,
 	xgifb_reg_set(pVBInfo->P3d4, 0x11, temp);
 }
 
-unsigned short XGI_GetResInfo(unsigned short ModeNo,
-		unsigned short ModeIdIndex, struct vb_device_info *pVBInfo)
-{
-	unsigned short resindex;
-
-	if (ModeNo <= 0x13)
-		/* si+St_ResInfo */
-		resindex = pVBInfo->SModeIDTable[ModeIdIndex].St_ResInfo;
-	else
-		/* si+Ext_ResInfo */
-		resindex = pVBInfo->EModeIDTable[ModeIdIndex].Ext_RESINFO;
-	return resindex;
-}
-
 static void XGI_SetCRT1Offset(unsigned short ModeNo,
 			      unsigned short ModeIdIndex,
 			      unsigned short RefreshRateTableIndex,
@@ -1308,77 +1271,55 @@ static unsigned short XGI_GetVCLK2Ptr(unsigned short ModeNo,
 				VCLKIndex = LCDXlat2VCLK[CRT2Index];
 			else
 				VCLKIndex = LCDXlat1VCLK[CRT2Index];
-		} else { /* for TV */
-			if (pVBInfo->VBInfo & SetCRT2ToTV) {
-				if (pVBInfo->VBInfo & SetCRT2ToHiVisionTV) {
-					if (pVBInfo->SetFlag & RPLLDIV2XO) {
-						VCLKIndex = HiTVVCLKDIV2;
-						VCLKIndex += 25;
-					} else {
-						VCLKIndex = HiTVVCLK;
-						VCLKIndex += 25;
-					}
-
-					if (pVBInfo->SetFlag & TVSimuMode) {
-						if (modeflag & Charx8Dot) {
-							VCLKIndex =
-								HiTVSimuVCLK;
-							VCLKIndex += 25;
-						} else {
-							VCLKIndex =
-								HiTVTextVCLK;
-							VCLKIndex += 25;
-						}
-					}
+		} else if (pVBInfo->VBInfo & SetCRT2ToHiVisionTV) {
+			if (pVBInfo->SetFlag & RPLLDIV2XO) {
+				VCLKIndex = HiTVVCLKDIV2;
+				VCLKIndex += 25;
+			} else {
+				VCLKIndex = HiTVVCLK;
+				VCLKIndex += 25;
+			}
 
-					/* 301lv */
-					if (pVBInfo->VBType & VB_XGI301LV) {
-						if (!(pVBInfo->VBExtInfo ==
-						     VB_YPbPr1080i)) {
-							VCLKIndex =
-								YPbPr750pVCLK;
-							if (!(pVBInfo->VBExtInfo
-									==
-							     VB_YPbPr750p)) {
-								VCLKIndex =
-								  YPbPr525pVCLK;
-								if (!(pVBInfo->VBExtInfo
-										== VB_YPbPr525p)) {
-									VCLKIndex
-											= YPbPr525iVCLK_2;
-									if (!(pVBInfo->SetFlag
-											& RPLLDIV2XO))
-										VCLKIndex
-												= YPbPr525iVCLK;
-								}
-							}
-						}
-					}
+			if (pVBInfo->SetFlag & TVSimuMode) {
+				if (modeflag & Charx8Dot) {
+					VCLKIndex = HiTVSimuVCLK;
+					VCLKIndex += 25;
 				} else {
-					if (pVBInfo->VBInfo & SetCRT2ToTV) {
-						if (pVBInfo->SetFlag &
-						    RPLLDIV2XO) {
-							VCLKIndex = TVVCLKDIV2;
-							VCLKIndex += 25;
-						} else {
-							VCLKIndex = TVVCLK;
-							VCLKIndex += 25;
-						}
-					}
+					VCLKIndex = HiTVTextVCLK;
+					VCLKIndex += 25;
 				}
-			} else { /* for CRT2 */
-				/* Port 3cch */
-				VCLKIndex = (unsigned char) inb(
-						(pVBInfo->P3ca + 0x02));
-				VCLKIndex = ((VCLKIndex >> 2) & 0x03);
-				if (ModeNo > 0x13) {
-					/* di+Ext_CRTVCLK */
-					VCLKIndex =
-						pVBInfo->RefIndex[
+			}
+
+			/* 301lv */
+			if ((pVBInfo->VBType & VB_XGI301LV) &&
+			    !(pVBInfo->VBExtInfo == VB_YPbPr1080i)) {
+				if (pVBInfo->VBExtInfo == VB_YPbPr750p)
+					VCLKIndex = YPbPr750pVCLK;
+				else if (pVBInfo->VBExtInfo == VB_YPbPr525p)
+					VCLKIndex = YPbPr525pVCLK;
+				else if (pVBInfo->SetFlag & RPLLDIV2XO)
+					VCLKIndex = YPbPr525iVCLK_2;
+				else
+					VCLKIndex = YPbPr525iVCLK;
+			}
+		} else if (pVBInfo->VBInfo & SetCRT2ToTV) {
+			if (pVBInfo->SetFlag & RPLLDIV2XO) {
+				VCLKIndex = TVVCLKDIV2;
+				VCLKIndex += 25;
+			} else {
+				VCLKIndex = TVVCLK;
+				VCLKIndex += 25;
+			}
+		} else { /* for CRT2 */
+			/* Port 3cch */
+			VCLKIndex = (unsigned char) inb((pVBInfo->P3ca + 0x02));
+			VCLKIndex = ((VCLKIndex >> 2) & 0x03);
+			if (ModeNo > 0x13) {
+				/* di+Ext_CRTVCLK */
+				VCLKIndex = pVBInfo->RefIndex[
 							RefreshRateTableIndex].
 								Ext_CRTVCLK;
-					VCLKIndex &= IndexMask;
-				}
+				VCLKIndex &= IndexMask;
 			}
 		}
 	} else { /* LVDS */
@@ -1397,7 +1338,6 @@ static unsigned short XGI_GetVCLK2Ptr(unsigned short ModeNo,
 		else
 			VCLKIndex = LVDSXlat3VCLK[VCLKIndex];
 	}
-	/* VCLKIndex = VCLKIndex&IndexMask; */
 
 	return VCLKIndex;
 }
@@ -1461,6 +1401,19 @@ static void XGI_SetCRT1VCLK(unsigned short ModeNo,
 	}
 }
 
+static void XGI_SetXG21FPBits(struct vb_device_info *pVBInfo)
+{
+	unsigned char temp;
+
+	temp = xgifb_reg_get(pVBInfo->P3d4, 0x37); /* D[0] 1: 18bit */
+	temp = (temp & 1) << 6;
+	/* SR06[6] 18bit Dither */
+	xgifb_reg_and_or(pVBInfo->P3c4, 0x06, ~0x40, temp);
+	/* SR09[7] enable FP output, SR09[6] 1: sigle 18bits, 0: dual 12bits */
+	xgifb_reg_and_or(pVBInfo->P3c4, 0x09, ~0xc0, temp | 0x80);
+
+}
+
 static void XGI_SetCRT1FIFO(unsigned short ModeNo,
 		struct xgi_hw_device_info *HwDeviceExtension,
 		struct vb_device_info *pVBInfo)
@@ -1532,16 +1485,6 @@ static void XGI_SetVCLKState(struct xgi_hw_device_info *HwDeviceExtension,
 		xgifb_reg_set(pVBInfo->P3c4, 0x1F, data);
 	}
 
-	/*  Jong for Adavantech LCD ripple issue
-	if ((VCLK >= 0) && (VCLK < 135))
-		data2 = 0x03;
-	else if ((VCLK >= 135) && (VCLK < 160))
-		data2 = 0x02;
-	else if ((VCLK >= 160) && (VCLK < 260))
-		data2 = 0x01;
-	else if (VCLK > 260)
-		data2 = 0x00;
-	*/
 	data2 = 0x00;
 
 	xgifb_reg_and_or(pVBInfo->P3c4, 0x07, 0xFC, data2);
@@ -1591,7 +1534,6 @@ static void XGI_SetCRT1ModeRegs(struct xgi_hw_device_info *HwDeviceExtension,
 		data2 |= 0x20;
 
 	xgifb_reg_and_or(pVBInfo->P3c4, 0x06, ~0x3F, data2);
-	/* xgifb_reg_set(pVBInfo->P3c4,0x06,data2); */
 	resindex = XGI_GetResInfo(ModeNo, ModeIdIndex, pVBInfo);
 	if (ModeNo <= 0x13)
 		xres = pVBInfo->StResInfo[resindex].HTotal;
@@ -1636,11 +1578,6 @@ static void XGI_SetCRT1ModeRegs(struct xgi_hw_device_info *HwDeviceExtension,
 	XGI_SetVCLKState(HwDeviceExtension, ModeNo, RefreshRateTableIndex,
 			pVBInfo);
 
-	/* if (modeflag&HalfDCLK) //030305 fix lowresolution bug */
-	/* if (XGINew_IF_DEF_NEW_LOWRES) */
-	/* XGI_VesaLowResolution(ModeNo, ModeIdIndex);
-	 * //030305 fix lowresolution bug */
-
 	data = xgifb_reg_get(pVBInfo->P3d4, 0x31);
 
 	if (HwDeviceExtension->jChipType == XG27) {
@@ -1803,11 +1740,6 @@ static void XGI_GetLVDSResInfo(unsigned short ModeNo,
 		/* si+Ext_ResInfo */
 		modeflag = pVBInfo->EModeIDTable[ModeIdIndex].Ext_RESINFO;
 
-	/* if (ModeNo > 0x13) */
-	/*	modeflag = pVBInfo->EModeIDTable[ModeIdIndex].Ext_ModeFlag; */
-	/* else */
-	/*	modeflag = pVBInfo->SModeIDTable[ModeIdIndex].St_ModeFlag; */
-
 	if (ModeNo <= 0x13)
 		/* si+St_ResInfo */
 		resindex = pVBInfo->SModeIDTable[ModeIdIndex].St_ResInfo;
@@ -1815,8 +1747,6 @@ static void XGI_GetLVDSResInfo(unsigned short ModeNo,
 		/* si+Ext_ResInfo */
 		resindex = pVBInfo->EModeIDTable[ModeIdIndex].Ext_RESINFO;
 
-	/* resindex = XGI_GetResInfo(ModeNo, ModeIdIndex, pVBInfo); */
-
 	if (ModeNo <= 0x13) {
 		xres = pVBInfo->StResInfo[resindex].HTotal;
 		yres = pVBInfo->StResInfo[resindex].VTotal;
@@ -1831,13 +1761,10 @@ static void XGI_GetLVDSResInfo(unsigned short ModeNo,
 		if (modeflag & DoubleScanMode)
 			yres = yres << 1;
 	}
-	/* if (modeflag & Charx8Dot) */
-	/* { */
 
 	if (xres == 720)
 		xres = 640;
 
-	/* } */
 	pVBInfo->VGAHDE = xres;
 	pVBInfo->HDE = xres;
 	pVBInfo->VGAVDE = yres;
@@ -1890,7 +1817,7 @@ static void *XGI_GetLcdPtr(unsigned short BX, unsigned short ModeNo,
 		tempal = (tempal & 0x0f);
 	}
 
-	tempcx = LCDLenList[tempbx]; /* mov cl,byte ptr cs:LCDLenList[bx] */
+	tempcx = LCDLenList[tempbx];
 
 	if (pVBInfo->LCDInfo & EnableScalingLCD) { /* ScaleLCD */
 		if ((tempbx == 5) || (tempbx) == 7)
@@ -1898,9 +1825,6 @@ static void *XGI_GetLcdPtr(unsigned short BX, unsigned short ModeNo,
 		else if ((tempbx == 3) || (tempbx == 8))
 			tempcx = LVDSDesDataLen2;
 	}
-	/* mov di, word ptr cs:LCDDataList[bx] */
-	/* tempdi = pVideoMemory[LCDDataList + tempbx * 2] |
-		    (pVideoMemory[LCDDataList + tempbx * 2 + 1] << 8); */
 
 	switch (tempbx) {
 	case 0:
@@ -2321,10 +2245,10 @@ static void *XGI_GetTVPtr(unsigned short BX, unsigned short ModeNo,
 
 	switch (tempbx) {
 	case 0:
-		tempdi = NULL; /*EPLCHTVCRT1Ptr_H;*/
+		tempdi = NULL;
 		break;
 	case 1:
-		tempdi = NULL; /*EPLCHTVCRT1Ptr_V;*/
+		tempdi = NULL;
 		break;
 	case 2:
 	case 6:
@@ -2363,9 +2287,7 @@ static void *XGI_GetTVPtr(unsigned short BX, unsigned short ModeNo,
 	}
 
 	/* 07/05/22 */
-	if (table == 0x00) {
-	} else if (table == 0x01) {
-	} else if (table == 0x04) {
+	if (table == 0x04) {
 		switch (tempdi[i].DATAPTR) {
 		case 0:
 			return &XGI_ExtPALData[tempal];
@@ -2429,7 +2351,6 @@ static void *XGI_GetTVPtr(unsigned short BX, unsigned short ModeNo,
 		default:
 			break;
 		}
-	} else if (table == 0x06) {
 	}
 	return NULL;
 }
@@ -2741,7 +2662,6 @@ static void XGI_SetLVDSRegs(unsigned short ModeNo, unsigned short ModeIdIndex,
 	else
 		tempbx = LCDPtr->LCDVRS;
 
-	/* tempbx = tempbx >> 4; */
 	tempcx = push1;
 
 	if (pVBInfo->LCDInfo & EnableScalingLCD)
@@ -2881,7 +2801,6 @@ static void XGI_GetLCDVCLKPtr(unsigned char *di_0, unsigned char *di_1,
 	unsigned short index;
 
 	if (pVBInfo->VBInfo & (SetCRT2ToLCD | SetCRT2ToLCDA)) {
-		/* index = XGI_GetLCDCapPtr(pVBInfo); */
 		index = XGI_GetLCDCapPtr1(pVBInfo);
 
 		if (pVBInfo->VBInfo & SetCRT2ToLCD) { /* LCDB */
@@ -3105,19 +3024,6 @@ static void XGI_UpdateModeInfo(struct xgi_hw_device_info *HwDeviceExtension,
 	}
 }
 
-void XGI_GetVGAType(struct xgi_hw_device_info *HwDeviceExtension,
-		struct vb_device_info *pVBInfo)
-{
-	/*
-	if ( HwDeviceExtension->jChipType >= XG20 ) {
-		pVBInfo->Set_VGAType = XG20;
-	} else {
-		pVBInfo->Set_VGAType = VGA_XGI340;
-	}
-	*/
-	pVBInfo->Set_VGAType = HwDeviceExtension->jChipType;
-}
-
 void XGI_GetVBType(struct vb_device_info *pVBInfo)
 {
 	unsigned short flag, tempbx, tempah;
@@ -3160,7 +3066,7 @@ void XGI_GetVBType(struct vb_device_info *pVBInfo)
 	}
 }
 
-void XGI_GetVBInfo(unsigned short ModeNo, unsigned short ModeIdIndex,
+static void XGI_GetVBInfo(unsigned short ModeNo, unsigned short ModeIdIndex,
 		struct xgi_hw_device_info *HwDeviceExtension,
 		struct vb_device_info *pVBInfo)
 {
@@ -3193,14 +3099,9 @@ void XGI_GetVBInfo(unsigned short ModeNo, unsigned short ModeIdIndex,
 
 		if (pVBInfo->IF_DEF_LCDA == 1) {
 
-			if ((pVBInfo->Set_VGAType >= XG20)
-					|| (pVBInfo->Set_VGAType >= XG40)) {
+			if ((HwDeviceExtension->jChipType >= XG20) ||
+			    (HwDeviceExtension->jChipType >= XG40)) {
 				if (pVBInfo->IF_DEF_LVDS == 0) {
-					/* if ((pVBInfo->VBType & VB_XGI302B)
-					    || (pVBInfo->VBType & VB_XGI301LV)
-					    || (pVBInfo->VBType & VB_XGI302LV)
-					    || (pVBInfo->VBType & VB_XGI301C))
-					*/
 					if (pVBInfo->VBType &
 					    (VB_XGI302B |
 					     VB_XGI301LV |
@@ -3225,7 +3126,7 @@ void XGI_GetVBInfo(unsigned short ModeNo, unsigned short ModeIdIndex,
 			    ((pVBInfo->VBType & VB_XGI301LV) ||
 			    (pVBInfo->VBType & VB_XGI302LV) ||
 			    (pVBInfo->VBType & VB_XGI301C)))) {
-				if (temp & SetYPbPr) { /* temp = CR38 */
+				if (temp & SetYPbPr) {
 					if (pVBInfo->IF_DEF_HiVision == 1) {
 						/* shampoo add for new
 						 * scratch */
@@ -3242,8 +3143,6 @@ void XGI_GetVBInfo(unsigned short ModeNo, unsigned short ModeIdIndex,
 							 SetCRT2ToYPbPr;
 						}
 					}
-
-					/* tempbx |= SetCRT2ToYPbPr; */
 				}
 			}
 		}
@@ -3368,7 +3267,7 @@ void XGI_GetVBInfo(unsigned short ModeNo, unsigned short ModeIdIndex,
 	pVBInfo->VBInfo = tempbx;
 }
 
-void XGI_GetTVInfo(unsigned short ModeNo, unsigned short ModeIdIndex,
+static void XGI_GetTVInfo(unsigned short ModeNo, unsigned short ModeIdIndex,
 		struct vb_device_info *pVBInfo)
 {
 	unsigned short temp, tempbx = 0, resinfo = 0, modeflag, index1;
@@ -3404,17 +3303,6 @@ void XGI_GetTVInfo(unsigned short ModeNo, unsigned short ModeIdIndex,
 				tempbx &= (SetCHTVOverScan |
 					   SetNTSCJ |
 					   SetPALTV);
-			/*
-			if (pVBInfo->IF_DEF_LVDS == 0) {
-				//PAL-M/PAL-N Info
-				index1 = xgifb_reg_get(pVBInfo->P3d4, 0x38);
-				//00:PAL, 01:PAL-M, 10:PAL-N
-				temp2 = (index1 & 0xC0) >> 5;
-				tempbx |= temp2;
-				if (temp2 & 0x02) //PAL-M
-					tempbx &= (~SetPALTV);
-			}
-			*/
 		}
 
 		if (pVBInfo->IF_DEF_LVDS == 0) {
@@ -3476,8 +3364,8 @@ void XGI_GetTVInfo(unsigned short ModeNo, unsigned short ModeIdIndex,
 	pVBInfo->TVInfo = tempbx;
 }
 
-unsigned char XGI_GetLCDInfo(unsigned short ModeNo, unsigned short ModeIdIndex,
-		struct vb_device_info *pVBInfo)
+static unsigned char XGI_GetLCDInfo(unsigned short ModeNo,
+		unsigned short ModeIdIndex, struct vb_device_info *pVBInfo)
 {
 	unsigned short temp, tempax, tempbx, modeflag, resinfo = 0, LCDIdIndex;
 
@@ -3553,15 +3441,8 @@ unsigned char XGI_GetLCDInfo(unsigned short ModeNo, unsigned short ModeIdIndex,
 			tempbx |= SetLCDtoNonExpanding;
 	}
 
-	/*
-	if (tempax & LCDBToA) {
-		tempbx |= SetLCDBToA;
-	}
-	*/
-
 	if (pVBInfo->IF_DEF_ExpLink == 1) {
 		if (modeflag & HalfDCLK) {
-			/* if (!(pVBInfo->LCDInfo&LCDNonExpanding)) */
 			if (!(tempbx & SetLCDtoNonExpanding)) {
 				tempbx |= EnableLVDSDDA;
 			} else {
@@ -3604,25 +3485,6 @@ unsigned char XGI_GetLCDInfo(unsigned short ModeNo, unsigned short ModeIdIndex,
 		}
 	}
 
-	/*
-	if (pVBInfo->IF_DEF_LVDS == 0) {
-		if (tempax & (LockLCDBToA | StLCDBToA)) {
-			if (pVBInfo->VBInfo & SetInSlaveMode) {
-				if (!((!(tempax & LockLCDBToA)) &&
-				    (ModeNo > 0x13))) {
-					pVBInfo->VBInfo &=
-						~(SetSimuScanMode |
-						  SetInSlaveMode |
-						  SetCRT2ToLCD);
-					pVBInfo->VBInfo |=
-						SetCRT2ToLCDA |
-						SetCRT2ToDualEdge;
-				}
-			}
-		}
-	}
-	*/
-
 	return 1;
 }
 
@@ -3632,10 +3494,6 @@ unsigned char XGI_SearchModeID(unsigned short ModeNo,
 	if (ModeNo <= 5)
 		ModeNo |= 1;
 	if (ModeNo <= 0x13) {
-		/* for (*ModeIdIndex=0;
-			*ModeIdIndex < sizeof(pVBInfo->SModeIDTable)
-				/ sizeof(struct XGI_StStruct);
-			(*ModeIdIndex)++) */
 		for (*ModeIdIndex = 0;; (*ModeIdIndex)++) {
 			if (pVBInfo->SModeIDTable[*ModeIdIndex].St_ModeID ==
 			    ModeNo)
@@ -3651,10 +3509,6 @@ unsigned char XGI_SearchModeID(unsigned short ModeNo,
 			(*ModeIdIndex) += 2; /* 400 lines */
 		/* else 350 lines */
 	} else {
-		/* for (*ModeIdIndex=0;
-			*ModeIdIndex < sizeof(pVBInfo->EModeIDTable)
-				/ sizeof(struct XGI_ExtStruct);
-			(*ModeIdIndex)++) */
 		for (*ModeIdIndex = 0;; (*ModeIdIndex)++) {
 			if (pVBInfo->EModeIDTable[*ModeIdIndex].Ext_ModeID ==
 			    ModeNo)
@@ -3675,7 +3529,6 @@ static unsigned char XG21GPIODataTransfer(unsigned char ujDate)
 
 	for (i = 0; i < 8; i++) {
 		ujRet = ujRet << 1;
-		/* ujRet |= GETBITS(ujDate >> i, 0:0); */
 		ujRet |= (ujDate >> i) & 1;
 	}
 
@@ -3726,7 +3579,101 @@ static unsigned char XGI_XG27GetPSCValue(struct vb_device_info *pVBInfo)
 	return temp;
 }
 
-void XGI_DisplayOn(struct xgi_hw_device_info *pXGIHWDE,
+/*----------------------------------------------------------------------------*/
+/* input                                                                      */
+/*      bl[5] : 1;LVDS signal on                                              */
+/*      bl[1] : 1;LVDS backlight on                                           */
+/*      bl[0] : 1:LVDS VDD on                                                 */
+/*      bh: 100000b : clear bit 5, to set bit5                                */
+/*          000010b : clear bit 1, to set bit1                                */
+/*          000001b : clear bit 0, to set bit0                                */
+/*----------------------------------------------------------------------------*/
+static void XGI_XG21BLSignalVDD(unsigned short tempbh, unsigned short tempbl,
+		struct vb_device_info *pVBInfo)
+{
+	unsigned char CR4A, temp;
+
+	CR4A = xgifb_reg_get(pVBInfo->P3d4, 0x4A);
+	tempbh &= 0x23;
+	tempbl &= 0x23;
+	xgifb_reg_and(pVBInfo->P3d4, 0x4A, ~tempbh); /* enable GPIO write */
+
+	if (tempbh & 0x20) {
+		temp = (tempbl >> 4) & 0x02;
+
+		/* CR B4[1] */
+		xgifb_reg_and_or(pVBInfo->P3d4, 0xB4, ~0x02, temp);
+
+	}
+
+	temp = xgifb_reg_get(pVBInfo->P3d4, 0x48);
+
+	temp = XG21GPIODataTransfer(temp);
+	temp &= ~tempbh;
+	temp |= tempbl;
+	xgifb_reg_set(pVBInfo->P3d4, 0x48, temp);
+}
+
+static void XGI_XG27BLSignalVDD(unsigned short tempbh, unsigned short tempbl,
+		struct vb_device_info *pVBInfo)
+{
+	unsigned char CR4A, temp;
+	unsigned short tempbh0, tempbl0;
+
+	tempbh0 = tempbh;
+	tempbl0 = tempbl;
+	tempbh0 &= 0x20;
+	tempbl0 &= 0x20;
+	tempbh0 >>= 3;
+	tempbl0 >>= 3;
+
+	if (tempbh & 0x20) {
+		temp = (tempbl >> 4) & 0x02;
+
+		/* CR B4[1] */
+		xgifb_reg_and_or(pVBInfo->P3d4, 0xB4, ~0x02, temp);
+
+	}
+	xgifb_reg_and_or(pVBInfo->P3d4, 0xB4, ~tempbh0, tempbl0);
+
+	CR4A = xgifb_reg_get(pVBInfo->P3d4, 0x4A);
+	tempbh &= 0x03;
+	tempbl &= 0x03;
+	tempbh <<= 2;
+	tempbl <<= 2; /* GPIOC,GPIOD */
+	xgifb_reg_and(pVBInfo->P3d4, 0x4A, ~tempbh); /* enable GPIO write */
+	xgifb_reg_and_or(pVBInfo->P3d4, 0x48, ~tempbh, tempbl);
+}
+
+/* --------------------------------------------------------------------- */
+/* Function : XGI_XG21SetPanelDelay */
+/* Input : */
+/* Output : */
+/* Description : */
+/* I/P : bl : 1 ; T1 : the duration between CPL on and signal on */
+/* : bl : 2 ; T2 : the duration signal on and Vdd on */
+/* : bl : 3 ; T3 : the duration between CPL off and signal off */
+/* : bl : 4 ; T4 : the duration signal off and Vdd off */
+/* --------------------------------------------------------------------- */
+static void XGI_XG21SetPanelDelay(struct xgifb_video_info *xgifb_info,
+		unsigned short tempbl,
+		struct vb_device_info *pVBInfo)
+{
+	if (tempbl == 1)
+		mdelay(xgifb_info->lvds_data.PSC_S1);
+
+	if (tempbl == 2)
+		mdelay(xgifb_info->lvds_data.PSC_S2);
+
+	if (tempbl == 3)
+		mdelay(xgifb_info->lvds_data.PSC_S3);
+
+	if (tempbl == 4)
+		mdelay(xgifb_info->lvds_data.PSC_S4);
+}
+
+static void XGI_DisplayOn(struct xgifb_video_info *xgifb_info,
+		struct xgi_hw_device_info *pXGIHWDE,
 		struct vb_device_info *pVBInfo)
 {
 
@@ -3736,12 +3683,12 @@ void XGI_DisplayOn(struct xgi_hw_device_info *pXGIHWDE,
 			if (!(XGI_XG21GetPSCValue(pVBInfo) & 0x1)) {
 				/* LVDS VDD on */
 				XGI_XG21BLSignalVDD(0x01, 0x01, pVBInfo);
-				XGI_XG21SetPanelDelay(2, pVBInfo);
+				XGI_XG21SetPanelDelay(xgifb_info, 2, pVBInfo);
 			}
 			if (!(XGI_XG21GetPSCValue(pVBInfo) & 0x20))
 				/* LVDS signal on */
 				XGI_XG21BLSignalVDD(0x20, 0x20, pVBInfo);
-			XGI_XG21SetPanelDelay(3, pVBInfo);
+			XGI_XG21SetPanelDelay(xgifb_info, 3, pVBInfo);
 			/* LVDS backlight on */
 			XGI_XG21BLSignalVDD(0x02, 0x02, pVBInfo);
 		} else {
@@ -3756,12 +3703,12 @@ void XGI_DisplayOn(struct xgi_hw_device_info *pXGIHWDE,
 			if (!(XGI_XG27GetPSCValue(pVBInfo) & 0x1)) {
 				/* LVDS VDD on */
 				XGI_XG27BLSignalVDD(0x01, 0x01, pVBInfo);
-				XGI_XG21SetPanelDelay(2, pVBInfo);
+				XGI_XG21SetPanelDelay(xgifb_info, 2, pVBInfo);
 			}
 			if (!(XGI_XG27GetPSCValue(pVBInfo) & 0x20))
 				/* LVDS signal on */
 				XGI_XG27BLSignalVDD(0x20, 0x20, pVBInfo);
-			XGI_XG21SetPanelDelay(3, pVBInfo);
+			XGI_XG21SetPanelDelay(xgifb_info, 3, pVBInfo);
 			/* LVDS backlight on */
 			XGI_XG27BLSignalVDD(0x02, 0x02, pVBInfo);
 		} else {
@@ -3772,7 +3719,8 @@ void XGI_DisplayOn(struct xgi_hw_device_info *pXGIHWDE,
 	}
 }
 
-void XGI_DisplayOff(struct xgi_hw_device_info *pXGIHWDE,
+void XGI_DisplayOff(struct xgifb_video_info *xgifb_info,
+		struct xgi_hw_device_info *pXGIHWDE,
 		struct vb_device_info *pVBInfo)
 {
 
@@ -3780,7 +3728,7 @@ void XGI_DisplayOff(struct xgi_hw_device_info *pXGIHWDE,
 		if (pVBInfo->IF_DEF_LVDS == 1) {
 			/* LVDS backlight off */
 			XGI_XG21BLSignalVDD(0x02, 0x00, pVBInfo);
-			XGI_XG21SetPanelDelay(3, pVBInfo);
+			XGI_XG21SetPanelDelay(xgifb_info, 3, pVBInfo);
 		} else {
 			/* DVO/DVI signal off */
 			XGI_XG21BLSignalVDD(0x20, 0x00, pVBInfo);
@@ -3791,7 +3739,7 @@ void XGI_DisplayOff(struct xgi_hw_device_info *pXGIHWDE,
 		if ((XGI_XG27GetPSCValue(pVBInfo) & 0x2)) {
 			/* LVDS backlight off */
 			XGI_XG27BLSignalVDD(0x02, 0x00, pVBInfo);
-			XGI_XG21SetPanelDelay(3, pVBInfo);
+			XGI_XG21SetPanelDelay(xgifb_info, 3, pVBInfo);
 		}
 
 		if (pVBInfo->IF_DEF_LVDS == 0)
@@ -3838,26 +3786,17 @@ static void XGI_GetCRT2ResInfo(unsigned short ModeNo,
 	if (ModeNo <= 0x13) {
 		xres = pVBInfo->StResInfo[resindex].HTotal;
 		yres = pVBInfo->StResInfo[resindex].VTotal;
-		/* si+St_ResInfo */
-		/* modeflag = pVBInfo->SModeIDTable[ModeIdIndex].St_ModeFlag;*/
 	} else {
 		xres = pVBInfo->ModeResInfo[resindex].HTotal; /* xres->ax */
 		yres = pVBInfo->ModeResInfo[resindex].VTotal; /* yres->bx */
 		/* si+St_ModeFlag */
 		modeflag = pVBInfo->EModeIDTable[ModeIdIndex].Ext_ModeFlag;
 
-		/*
-		if (pVBInfo->IF_DEF_FSTN) {
-			xres *= 2;
-			yres *= 2;
-		 } else {
-		*/
 		if (modeflag & HalfDCLK)
 			xres *= 2;
 
 		if (modeflag & DoubleScanMode)
 			yres *= 2;
-		/* } */
 	}
 
 	if (pVBInfo->VBInfo & SetCRT2ToLCD) {
@@ -4028,8 +3967,6 @@ static void XGI_GetCRT2Data(unsigned short ModeNo, unsigned short ModeIdIndex,
 					tempbx = 775;
 				else if (pVBInfo->VGAVDE == 600)
 					tempbx = 775;
-				/* else if (pVBInfo->VGAVDE==350) tempbx=560; */
-				/* else if (pVBInfo->VGAVDE==400) tempbx=640; */
 				else
 					tempbx = 768;
 			} else
@@ -4294,7 +4231,6 @@ static void XGI_PreSetGroup1(unsigned short ModeNo, unsigned short ModeIdIndex,
 	XGI_SetCRT2Offset(ModeNo, ModeIdIndex, RefreshRateTableIndex,
 			HwDeviceExtension, pVBInfo);
 	XGI_SetCRT2FIFO(pVBInfo);
-	/* XGI_SetCRT2Sync(ModeNo,RefreshRateTableIndex); */
 
 	for (tempcx = 4; tempcx < 7; tempcx++)
 		xgifb_reg_set(pVBInfo->Part1Port, tempcx, 0x0);
@@ -4497,9 +4433,6 @@ static void XGI_SetLockRegs(unsigned short ModeNo, unsigned short ModeIdIndex,
 
 	temp = 0xFF; /* set MAX HT */
 	xgifb_reg_set(pVBInfo->Part1Port, 0x03, temp);
-	/* if (modeflag & Charx8Dot) */
-	/*	tempcx = 0x08; */
-	/* else */
 	tempcx = 0x08;
 
 	if (pVBInfo->VBType & (VB_XGI301LV | VB_XGI302LV | VB_XGI301C))
@@ -4565,7 +4498,6 @@ static void XGI_SetLockRegs(unsigned short ModeNo, unsigned short ModeIdIndex,
 			}
 		}
 	} else {
-		/* tempcx = tempbx & 0x00FF ; */
 		tempbx = (tempbx & 0xFF00) >> 8;
 		tempcx = (tempcx + tempbx) >> 1;
 		temp = (tempcx & 0x00FF) + 2;
@@ -4579,36 +4511,23 @@ static void XGI_SetLockRegs(unsigned short ModeNo, unsigned short ModeIdIndex,
 						temp -= 6;
 				}
 			}
-		} else {
-			if (!(modeflag & HalfDCLK)) {
-				temp -= 4;
-				if (pVBInfo->LCDResInfo != Panel1280x960) {
-					if (pVBInfo->VGAHDE >= 800) {
-						temp -= 7;
-						if (pVBInfo->ModeType ==
-							ModeEGA) {
-							if (pVBInfo->VGAVDE ==
-							    1024) {
-								temp += 15;
-								if (pVBInfo->LCDResInfo != Panel1280x1024) {
-									temp +=
-									    7;
-								}
-							}
-						}
-
-						if (pVBInfo->VGAHDE >= 1280) {
-							if (pVBInfo->LCDResInfo
-									!= Panel1280x960) {
-								if (pVBInfo->LCDInfo
-										& LCDNonExpanding) {
-									temp
-											+= 28;
-								}
-							}
-						}
-					}
+		} else if (!(modeflag & HalfDCLK)) {
+			temp -= 4;
+			if (pVBInfo->LCDResInfo != Panel1280x960 &&
+			    pVBInfo->VGAHDE >= 800) {
+				temp -= 7;
+				if (pVBInfo->ModeType == ModeEGA &&
+				    pVBInfo->VGAVDE == 1024) {
+					temp += 15;
+					if (pVBInfo->LCDResInfo !=
+						Panel1280x1024)
+						temp += 7;
 				}
+
+				if (pVBInfo->VGAHDE >= 1280 &&
+				    pVBInfo->LCDResInfo != Panel1280x960 &&
+				    (pVBInfo->LCDInfo & LCDNonExpanding))
+					temp += 28;
 			}
 		}
 	}
@@ -5297,7 +5216,6 @@ static void XGI_SetGroup2(unsigned short ModeNo, unsigned short ModeIdIndex,
 		tempax--;
 		xgifb_reg_and(pVBInfo->Part2Port, 0x01, tempax);
 
-		/* if ( !( pVBInfo->VBType & VB_XGI301C ) ) */
 		xgifb_reg_and(pVBInfo->Part2Port, 0x00, 0xEF);
 	}
 
@@ -5436,7 +5354,6 @@ static void XGI_SetLCDRegs(unsigned short ModeNo, unsigned short ModeIdIndex,
 	tempax = pVBInfo->VT;
 	tempbx = pVBInfo->LCDVRS;
 
-	/* if (SetLCD_Info & EnableScalingLCD) */
 	tempcx += tempbx;
 	if (tempcx >= tempax)
 		tempcx -= tempax;
@@ -5478,12 +5395,10 @@ static void XGI_SetLCDRegs(unsigned short ModeNo, unsigned short ModeIdIndex,
 	temp = (tempcx & 0xFF00) >> 8;
 	xgifb_reg_set(pVBInfo->Part2Port, 0x25, temp);
 
-	/* getlcdsync() */
 	XGI_GetLCDSync(&tempax, &tempbx, pVBInfo);
 	tempcx = tempax;
 	tempax = pVBInfo->HT;
 	tempbx = pVBInfo->LCDHRS;
-	/* if ( SetLCD_Info & EnableScalingLCD) */
 	if (XGI_IsLCDDualLink(pVBInfo)) {
 		tempax = tempax >> 1;
 		tempbx = tempbx >> 1;
@@ -5801,9 +5716,6 @@ static void XGI_SetGroup4(unsigned short ModeNo, unsigned short ModeIdIndex,
 		if (XGI_IsLCDDualLink(pVBInfo))
 			tempax = tempax >> 1;
 
-		/* if((pVBInfo->VBInfo&(SetCRT2ToLCD)) ||
-		      ((pVBInfo->TVInfo&SetYPbPrMode525p) ||
-		      (pVBInfo->TVInfo&SetYPbPrMode750p))) { */
 		if (pVBInfo->VBInfo & SetCRT2ToLCD) {
 			if (tempax > 800)
 				tempax -= 800;
@@ -5817,33 +5729,6 @@ static void XGI_SetGroup4(unsigned short ModeNo, unsigned short ModeIdIndex,
 		}
 		tempax -= 1;
 
-		/*
-		if (pVBInfo->VBInfo & (SetCRT2ToTV | SetCRT2ToHiVisionTV)) {
-			if (pVBInfo->VBType & VB_XGI301LV) {
-				if (!(pVBInfo->TVInfo &
-				      (SetYPbPrMode525p |
-				       SetYPbPrMode750p |
-				       SetYPbPrMode1080i))) {
-					if (pVBInfo->VGAHDE > 800) {
-						if (pVBInfo->VGAHDE == 1024)
-							tempax =(tempax * 25 /
-								 32) - 1;
-						else
-							tempax = (tempax * 20 /
-								  32) - 1;
-					}
-				}
-			} else {
-				if (pVBInfo->VGAHDE > 800) {
-					if (pVBInfo->VGAHDE == 1024)
-						tempax = (tempax * 25 / 32) - 1;
-					else
-						tempax = (tempax * 20 / 32) - 1;
-				}
-			}
-		}
-		*/
-
 		temp = (tempax & 0xFF00) >> 8;
 		temp = ((temp & 0x0003) << 4);
 		xgifb_reg_set(pVBInfo->Part4Port, 0x1E, temp);
@@ -5902,7 +5787,6 @@ static void XGI_SetGroup5(unsigned short ModeNo, unsigned short ModeIdIndex,
 		if (!(pVBInfo->VBInfo & (SetInSlaveMode | LoadDACFlag
 				| CRT2DisplayFlag))) {
 			XGINew_EnableCRT2(pVBInfo);
-			/* LoadDAC2(pVBInfo->Part5Port, ModeNo, ModeIdIndex); */
 		}
 	}
 	return;
@@ -5921,118 +5805,11 @@ static void XGI_DisableGatingCRT(struct xgi_hw_device_info *HwDeviceExtension,
 	xgifb_reg_and_or(pVBInfo->P3d4, 0x63, 0xBF, 0x00);
 }
 
-/*----------------------------------------------------------------------------*/
-/* input                                                                      */
-/*      bl[5] : 1;LVDS signal on                                              */
-/*      bl[1] : 1;LVDS backlight on                                           */
-/*      bl[0] : 1:LVDS VDD on                                                 */
-/*      bh: 100000b : clear bit 5, to set bit5                                */
-/*          000010b : clear bit 1, to set bit1                                */
-/*          000001b : clear bit 0, to set bit0                                */
-/*----------------------------------------------------------------------------*/
-void XGI_XG21BLSignalVDD(unsigned short tempbh, unsigned short tempbl,
-		struct vb_device_info *pVBInfo)
-{
-	unsigned char CR4A, temp;
-
-	CR4A = xgifb_reg_get(pVBInfo->P3d4, 0x4A);
-	tempbh &= 0x23;
-	tempbl &= 0x23;
-	xgifb_reg_and(pVBInfo->P3d4, 0x4A, ~tempbh); /* enable GPIO write */
-
-	if (tempbh & 0x20) {
-		temp = (tempbl >> 4) & 0x02;
-
-		/* CR B4[1] */
-		xgifb_reg_and_or(pVBInfo->P3d4, 0xB4, ~0x02, temp);
-
-	}
-
-	temp = xgifb_reg_get(pVBInfo->P3d4, 0x48);
-
-	temp = XG21GPIODataTransfer(temp);
-	temp &= ~tempbh;
-	temp |= tempbl;
-	xgifb_reg_set(pVBInfo->P3d4, 0x48, temp);
-}
-
-void XGI_XG27BLSignalVDD(unsigned short tempbh, unsigned short tempbl,
-		struct vb_device_info *pVBInfo)
-{
-	unsigned char CR4A, temp;
-	unsigned short tempbh0, tempbl0;
-
-	tempbh0 = tempbh;
-	tempbl0 = tempbl;
-	tempbh0 &= 0x20;
-	tempbl0 &= 0x20;
-	tempbh0 >>= 3;
-	tempbl0 >>= 3;
-
-	if (tempbh & 0x20) {
-		temp = (tempbl >> 4) & 0x02;
-
-		/* CR B4[1] */
-		xgifb_reg_and_or(pVBInfo->P3d4, 0xB4, ~0x02, temp);
-
-	}
-	xgifb_reg_and_or(pVBInfo->P3d4, 0xB4, ~tempbh0, tempbl0);
-
-	CR4A = xgifb_reg_get(pVBInfo->P3d4, 0x4A);
-	tempbh &= 0x03;
-	tempbl &= 0x03;
-	tempbh <<= 2;
-	tempbl <<= 2; /* GPIOC,GPIOD */
-	xgifb_reg_and(pVBInfo->P3d4, 0x4A, ~tempbh); /* enable GPIO write */
-	xgifb_reg_and_or(pVBInfo->P3d4, 0x48, ~tempbh, tempbl);
-}
-
-/* --------------------------------------------------------------------- */
-unsigned short XGI_GetLVDSOEMTableIndex(struct vb_device_info *pVBInfo)
-{
-	unsigned short index;
-
-	index = xgifb_reg_get(pVBInfo->P3d4, 0x36);
-	if (index < sizeof(XGI21_LCDCapList)
-			/ sizeof(struct XGI21_LVDSCapStruct))
-		return index;
-	return 0;
-}
-
-/* --------------------------------------------------------------------- */
-/* Function : XGI_XG21SetPanelDelay */
-/* Input : */
-/* Output : */
-/* Description : */
-/* I/P : bl : 1 ; T1 : the duration between CPL on and signal on */
-/* : bl : 2 ; T2 : the duration signal on and Vdd on */
-/* : bl : 3 ; T3 : the duration between CPL off and signal off */
-/* : bl : 4 ; T4 : the duration signal off and Vdd off */
-/* --------------------------------------------------------------------- */
-void XGI_XG21SetPanelDelay(unsigned short tempbl,
+static unsigned char XGI_XG21CheckLVDSMode(struct xgifb_video_info *xgifb_info,
+		unsigned short ModeNo, unsigned short ModeIdIndex,
 		struct vb_device_info *pVBInfo)
 {
-	unsigned short index;
-
-	index = XGI_GetLVDSOEMTableIndex(pVBInfo);
-	if (tempbl == 1)
-		mdelay(pVBInfo->XG21_LVDSCapList[index].PSC_S1);
-
-	if (tempbl == 2)
-		mdelay(pVBInfo->XG21_LVDSCapList[index].PSC_S2);
-
-	if (tempbl == 3)
-		mdelay(pVBInfo->XG21_LVDSCapList[index].PSC_S3);
-
-	if (tempbl == 4)
-		mdelay(pVBInfo->XG21_LVDSCapList[index].PSC_S4);
-}
-
-unsigned char XGI_XG21CheckLVDSMode(unsigned short ModeNo,
-		unsigned short ModeIdIndex, struct vb_device_info *pVBInfo)
-{
-	unsigned short xres, yres, colordepth, modeflag, resindex,
-			lvdstableindex;
+	unsigned short xres, yres, colordepth, modeflag, resindex;
 
 	resindex = XGI_GetResInfo(ModeNo, ModeIdIndex, pVBInfo);
 	if (ModeNo <= 0x13) {
@@ -6061,18 +5838,15 @@ unsigned char XGI_XG21CheckLVDSMode(unsigned short ModeNo,
 
 	}
 
-	lvdstableindex = XGI_GetLVDSOEMTableIndex(pVBInfo);
-	if (xres > (pVBInfo->XG21_LVDSCapList[lvdstableindex].LVDSHDE))
+	if (xres > xgifb_info->lvds_data.LVDSHDE)
 		return 0;
 
-	if (yres > (pVBInfo->XG21_LVDSCapList[lvdstableindex].LVDSVDE))
+	if (yres > xgifb_info->lvds_data.LVDSVDE)
 		return 0;
 
 	if (ModeNo > 0x13) {
-		if ((xres != (pVBInfo->XG21_LVDSCapList[lvdstableindex].
-				LVDSHDE)) ||
-		    (yres != (pVBInfo->XG21_LVDSCapList[lvdstableindex].
-				LVDSVDE))) {
+		if (xres != xgifb_info->lvds_data.LVDSHDE ||
+		    yres != xgifb_info->lvds_data.LVDSVDE) {
 			colordepth = XGI_GetColorDepth(ModeNo,
 						       ModeIdIndex,
 						       pVBInfo);
@@ -6084,55 +5858,26 @@ unsigned char XGI_XG21CheckLVDSMode(unsigned short ModeNo,
 	return 1;
 }
 
-void XGI_SetXG21FPBits(struct vb_device_info *pVBInfo)
-{
-	unsigned char temp;
-
-	temp = xgifb_reg_get(pVBInfo->P3d4, 0x37); /* D[0] 1: 18bit */
-	temp = (temp & 1) << 6;
-	/* SR06[6] 18bit Dither */
-	xgifb_reg_and_or(pVBInfo->P3c4, 0x06, ~0x40, temp);
-	/* SR09[7] enable FP output, SR09[6] 1: sigle 18bits, 0: dual 12bits */
-	xgifb_reg_and_or(pVBInfo->P3c4, 0x09, ~0xc0, temp | 0x80);
-
-}
-
-void XGI_SetXG27FPBits(struct vb_device_info *pVBInfo)
-{
-	unsigned char temp;
-
-	/* D[1:0] 01: 18bit, 00: dual 12, 10: single 24 */
-	temp = xgifb_reg_get(pVBInfo->P3d4, 0x37);
-	temp = (temp & 3) << 6;
-	/* SR06[7]0: dual 12/1: single 24 [6] 18bit Dither <= 0 h/w recommend */
-	xgifb_reg_and_or(pVBInfo->P3c4, 0x06, ~0xc0, temp & 0x80);
-	/* SR09[7] enable FP output, SR09[6] 1: sigle 18bits, 0: 24bits */
-	xgifb_reg_and_or(pVBInfo->P3c4, 0x09, ~0xc0, temp | 0x80);
-
-}
-
-static void xgifb_set_lvds(int chip_id,
+static void xgifb_set_lvds(struct xgifb_video_info *xgifb_info,
+			   int chip_id,
 			   unsigned short ModeNo,
 			   unsigned short ModeIdIndex,
 			   struct vb_device_info *pVBInfo)
 {
 	unsigned char temp, Miscdata;
-	unsigned short xres, yres, modeflag, resindex, lvdstableindex;
+	unsigned short xres, yres, modeflag, resindex;
 	unsigned short LVDSHT, LVDSHBS, LVDSHRS, LVDSHRE, LVDSHBE;
 	unsigned short LVDSVT, LVDSVBS, LVDSVRS, LVDSVRE, LVDSVBE;
 	unsigned short value;
 
-	lvdstableindex = XGI_GetLVDSOEMTableIndex(pVBInfo);
-	temp = (unsigned char) ((pVBInfo->XG21_LVDSCapList[lvdstableindex].
-					LVDS_Capability &
+	temp = (unsigned char) ((xgifb_info->lvds_data.LVDS_Capability &
 				(LCDPolarity << 8)) >> 8);
 	temp &= LCDPolarity;
 	Miscdata = (unsigned char) inb(pVBInfo->P3cc);
 
 	outb((Miscdata & 0x3F) | temp, pVBInfo->P3c2);
 
-	temp = (unsigned char) (pVBInfo->XG21_LVDSCapList[lvdstableindex].
-					LVDS_Capability & LCDPolarity);
+	temp = xgifb_info->lvds_data.LVDS_Capability & LCDPolarity;
 	/* SR35[7] FP VSync polarity */
 	xgifb_reg_and_or(pVBInfo->P3c4, 0x35, ~0x80, temp & 0x80);
 	/* SR30[5] FP HSync polarity */
@@ -6159,48 +5904,43 @@ static void xgifb_set_lvds(int chip_id,
 	if (!(modeflag & Charx8Dot))
 		xres = xres * 8 / 9;
 
-	LVDSHT = pVBInfo->XG21_LVDSCapList[lvdstableindex].LVDSHT;
+	LVDSHT = xgifb_info->lvds_data.LVDSHT;
 
-	LVDSHBS = xres + (pVBInfo->XG21_LVDSCapList[lvdstableindex].LVDSHDE
-			- xres) / 2;
+	LVDSHBS = xres + (xgifb_info->lvds_data.LVDSHDE - xres) / 2;
 	if ((ModeNo <= 0x13) && (modeflag & HalfDCLK))
 		LVDSHBS -= xres / 4;
 
 	if (LVDSHBS > LVDSHT)
 		LVDSHBS -= LVDSHT;
 
-	LVDSHRS = LVDSHBS + pVBInfo->XG21_LVDSCapList[lvdstableindex].LVDSHFP;
+	LVDSHRS = LVDSHBS + xgifb_info->lvds_data.LVDSHFP;
 	if (LVDSHRS > LVDSHT)
 		LVDSHRS -= LVDSHT;
 
-	LVDSHRE = LVDSHRS + pVBInfo->XG21_LVDSCapList[lvdstableindex].LVDSHSYNC;
+	LVDSHRE = LVDSHRS + xgifb_info->lvds_data.LVDSHSYNC;
 	if (LVDSHRE > LVDSHT)
 		LVDSHRE -= LVDSHT;
 
-	LVDSHBE = LVDSHBS + LVDSHT
-			- pVBInfo->XG21_LVDSCapList[lvdstableindex].LVDSHDE;
+	LVDSHBE = LVDSHBS + LVDSHT - xgifb_info->lvds_data.LVDSHDE;
 
-	LVDSVT = pVBInfo->XG21_LVDSCapList[lvdstableindex].LVDSVT;
+	LVDSVT = xgifb_info->lvds_data.LVDSVT;
 
-	LVDSVBS = yres + (pVBInfo->XG21_LVDSCapList[lvdstableindex].LVDSVDE
-			- yres) / 2;
+	LVDSVBS = yres + (xgifb_info->lvds_data.LVDSVDE - yres) / 2;
 	if ((ModeNo > 0x13) && (modeflag & DoubleScanMode))
 		LVDSVBS += yres / 2;
 
 	if (LVDSVBS > LVDSVT)
 		LVDSVBS -= LVDSVT;
 
-	LVDSVRS = LVDSVBS + pVBInfo->XG21_LVDSCapList[lvdstableindex].LVDSVFP;
+	LVDSVRS = LVDSVBS + xgifb_info->lvds_data.LVDSVFP;
 	if (LVDSVRS > LVDSVT)
 		LVDSVRS -= LVDSVT;
 
-	LVDSVRE = LVDSVRS + pVBInfo->XG21_LVDSCapList[lvdstableindex].
-					LVDSVSYNC;
+	LVDSVRE = LVDSVRS + xgifb_info->lvds_data.LVDSVSYNC;
 	if (LVDSVRE > LVDSVT)
 		LVDSVRE -= LVDSVT;
 
-	LVDSVBE = LVDSVBS + LVDSVT
-			- pVBInfo->XG21_LVDSCapList[lvdstableindex].LVDSVDE;
+	LVDSVBE = LVDSVBS + LVDSVT - xgifb_info->lvds_data.LVDSVDE;
 
 	temp = (unsigned char) xgifb_reg_get(pVBInfo->P3d4, 0x11);
 	xgifb_reg_set(pVBInfo->P3d4, 0x11, temp & 0x7f); /* Unlock CRTC */
@@ -6300,13 +6040,9 @@ static void xgifb_set_lvds(int chip_id,
 
 		xgifb_reg_and_or(pVBInfo->P3c4, 0x31, ~0x30, value);
 		xgifb_reg_set(pVBInfo->P3c4,
-			      0x2B,
-			      pVBInfo->XG21_LVDSCapList[lvdstableindex].
-					VCLKData1);
+			      0x2B, xgifb_info->lvds_data.VCLKData1);
 		xgifb_reg_set(pVBInfo->P3c4,
-			      0x2C,
-			      pVBInfo->XG21_LVDSCapList[lvdstableindex].
-					VCLKData2);
+			      0x2C, xgifb_info->lvds_data.VCLKData2);
 		value += 0x10;
 	}
 
@@ -6398,7 +6134,8 @@ static unsigned char XGI_EnableChISLCD(struct vb_device_info *pVBInfo)
 	return 0;
 }
 
-void XGI_DisableBridge(struct xgi_hw_device_info *HwDeviceExtension,
+static void XGI_DisableBridge(struct xgifb_video_info *xgifb_info,
+		struct xgi_hw_device_info *HwDeviceExtension,
 		struct vb_device_info *pVBInfo)
 {
 	unsigned short tempah = 0;
@@ -6442,7 +6179,7 @@ void XGI_DisableBridge(struct xgi_hw_device_info *HwDeviceExtension,
 						| SetSimuScanMode))) {
 			if (pVBInfo->SetFlag & GatingCRT)
 				XGI_EnableGatingCRT(HwDeviceExtension, pVBInfo);
-			XGI_DisplayOff(HwDeviceExtension, pVBInfo);
+			XGI_DisplayOff(xgifb_info, HwDeviceExtension, pVBInfo);
 		}
 
 		if (pVBInfo->VBInfo & SetCRT2ToLCDA) {
@@ -6464,7 +6201,6 @@ void XGI_DisableBridge(struct xgi_hw_device_info *HwDeviceExtension,
 		    ((!(pVBInfo->VBInfo & SetCRT2ToLCDA)) &&
 		    (pVBInfo->VBInfo &
 			(SetCRT2ToRAMDAC | SetCRT2ToLCD | SetCRT2ToTV))))
-			/* BScreenOff=1 */
 			xgifb_reg_or(pVBInfo->Part1Port, 0x00, 0x80);
 
 		if ((pVBInfo->SetFlag & DisableChB) ||
@@ -6484,7 +6220,6 @@ void XGI_DisableBridge(struct xgi_hw_device_info *HwDeviceExtension,
 		}
 	} else { /* {301} */
 		if (pVBInfo->VBInfo & (SetCRT2ToLCD | SetCRT2ToTV)) {
-			/* BScreenOff=1 */
 			xgifb_reg_or(pVBInfo->Part1Port, 0x00, 0x80);
 			/* Disable CRT2 */
 			xgifb_reg_and(pVBInfo->Part1Port, 0x1E, 0xDF);
@@ -6494,7 +6229,7 @@ void XGI_DisableBridge(struct xgi_hw_device_info *HwDeviceExtension,
 
 		if (pVBInfo->VBInfo & (DisableCRT2Display | SetCRT2ToLCDA
 				| SetSimuScanMode))
-			XGI_DisplayOff(HwDeviceExtension, pVBInfo);
+			XGI_DisplayOff(xgifb_info, HwDeviceExtension, pVBInfo);
 	}
 }
 
@@ -6610,17 +6345,6 @@ static void XGI_SetDelayComp(struct vb_device_info *pVBInfo)
 
 			if (pVBInfo->VBInfo & SetCRT2ToDualEdge)
 				tempbl = tempbl >> 4;
-			/*
-			if (pVBInfo->VBInfo & SetCRT2ToRAMDAC)
-				tempbl = CRT2Delay1;	// Get CRT2 Delay
-			if (pVBInfo->VBType &
-			    (VB_XGI301B |
-			     VB_XGI302B |
-			     VB_XGI301LV |
-			     VB_XGI302LV |
-			     VB_XGI301C))
-				tempbl = CRT2Delay2;
-			*/
 			if (pVBInfo->VBInfo & (SetCRT2ToLCD | SetCRT2ToLCDA)) {
 				/* Get LCD Delay */
 				index = XGI_GetLCDCapPtr(pVBInfo);
@@ -6680,23 +6404,6 @@ static void XGI_SetLCDCap_A(unsigned short tempcx,
 				(unsigned short) (0x30 | (tempcx & 0x00C0)));
 		xgifb_reg_and_or(pVBInfo->Part1Port, 0x1A, 0x7F, 0x00);
 	}
-
-	/*
-	if (tempcx & EnableLCD24bpp) {	// 24bits
-		xgifb_reg_and_or(pVBInfo->Part1Port,
-				 0x19,
-				 0x0F,
-				 (unsigned short)(0x30 | (tempcx&0x00C0)));
-		xgifb_reg_and_or(pVBInfo->Part1Port, 0x1A, 0x7F, 0x00);
-	} else {
-		xgifb_reg_and_or(pVBInfo->Part1Port,
-				 0x19,
-				 0x0F,
-				 // Enable Dither
-				 (unsigned short)(0x20 | (tempcx&0x00C0)));
-		xgifb_reg_and_or(pVBInfo->Part1Port, 0x1A, 0x7F, 0x80);
-	}
-	*/
 }
 
 /* --------------------------------------------------------------------- */
@@ -6718,6 +6425,25 @@ static void XGI_SetLCDCap_B(unsigned short tempcx,
 						| 0x18)); /* Enable Dither */
 }
 
+static void XGI_LongWait(struct vb_device_info *pVBInfo)
+{
+	unsigned short i;
+
+	i = xgifb_reg_get(pVBInfo->P3c4, 0x1F);
+
+	if (!(i & 0xC0)) {
+		for (i = 0; i < 0xFFFF; i++) {
+			if (!(inb(pVBInfo->P3da) & 0x08))
+				break;
+		}
+
+		for (i = 0; i < 0xFFFF; i++) {
+			if ((inb(pVBInfo->P3da) & 0x08))
+				break;
+		}
+	}
+}
+
 static void SetSpectrum(struct vb_device_info *pVBInfo)
 {
 	unsigned short index;
@@ -6940,14 +6666,12 @@ static void XGI_OEM310Setting(unsigned short ModeNo,
 			      unsigned short ModeIdIndex,
 			      struct vb_device_info *pVBInfo)
 {
-	/* GetPart1IO(); */
 	XGI_SetDelayComp(pVBInfo);
 
 	if (pVBInfo->VBInfo & (SetCRT2ToLCD | SetCRT2ToLCDA))
 		XGI_SetLCDCap(pVBInfo);
 
 	if (pVBInfo->VBInfo & SetCRT2ToTV) {
-		/* GetPart2IO() */
 		XGI_SetPhaseIncr(pVBInfo);
 		XGI_SetYFilter(ModeNo, ModeIdIndex, pVBInfo);
 		XGI_SetAntiFlicker(ModeNo, ModeIdIndex, pVBInfo);
@@ -6963,7 +6687,7 @@ static void XGI_OEM310Setting(unsigned short ModeNo,
 /* Output : */
 /* Description : Origin code for crt2group */
 /* --------------------------------------------------------------------- */
-void XGI_SetCRT2ModeRegs(unsigned short ModeNo,
+static void XGI_SetCRT2ModeRegs(unsigned short ModeNo,
 		struct xgi_hw_device_info *HwDeviceExtension,
 		struct vb_device_info *pVBInfo)
 {
@@ -6972,8 +6696,6 @@ void XGI_SetCRT2ModeRegs(unsigned short ModeNo,
 
 	unsigned char tempah;
 
-	/* // fix write part1 index 0 BTDRAM bit Bug
-	 * xgifb_reg_set(pVBInfo->Part1Port, 0x03, 0x00); */
 	tempah = 0;
 	if (!(pVBInfo->VBInfo & DisableCRT2Display)) {
 		tempah = xgifb_reg_get(pVBInfo->Part1Port, 0x00);
@@ -6999,32 +6721,6 @@ void XGI_SetCRT2ModeRegs(unsigned short ModeNo,
 		}
 	}
 
-	/* 0210 shampoo
-	if (pVBInfo->VBInfo & DisableCRT2Display) {
-		tempah = 0;
-	}
-
-	xgifb_reg_set(pVBInfo->Part1Port, 0x00, tempah);
-	if (pVBInfo->VBInfo & (SetCRT2ToRAMDAC | SetCRT2ToTV | SetCRT2ToLCD)) {
-		tempcl = pVBInfo->ModeType;
-		if (ModeNo > 0x13) {
-			tempcl -= ModeVGA;
-			if ((tempcl > 0) || (tempcl == 0)) {
-				tempah=(0x008>>tempcl) ;
-				if (tempah == 0)
-					tempah = 1;
-				tempah |= 0x040;
-			}
-		} else {
-			tempah = 0x040;
-		}
-
-		if (pVBInfo->VBInfo & SetInSlaveMode) {
-			tempah = (tempah ^ 0x050);
-		}
-	}
-	*/
-
 	xgifb_reg_set(pVBInfo->Part1Port, 0x00, tempah);
 	tempah = 0x08;
 	tempbl = 0xf0;
@@ -7093,14 +6789,11 @@ void XGI_SetCRT2ModeRegs(unsigned short ModeNo,
 		tempah |= 0x080;
 
 		if (pVBInfo->VBInfo & SetCRT2ToTV) {
-			/* if (!(pVBInfo->TVInfo &
-				 (SetYPbPrMode525p | SetYPbPrMode750p))) { */
 			tempah |= 0x020;
 			if (ModeNo > 0x13) {
 				if (pVBInfo->VBInfo & DriverMode)
 					tempah = tempah ^ 0x20;
 			}
-			/* } */
 		}
 
 		xgifb_reg_and_or(pVBInfo->Part4Port, 0x0D, ~0x0BF, tempah);
@@ -7110,12 +6803,8 @@ void XGI_SetCRT2ModeRegs(unsigned short ModeNo,
 			tempah |= 0x40;
 
 		if (pVBInfo->VBInfo & SetCRT2ToTV) {
-			/* if ((!(pVBInfo->VBInfo & SetCRT2ToHiVisionTV)) &&
-			       (!(pVBInfo->TVInfo &
-				  (SetYPbPrMode525p | SetYPbPrMode750p)))) { */
 			if (pVBInfo->TVInfo & RPLLDIV2XO)
 				tempah |= 0x40;
-			/* } */
 		}
 
 		if ((pVBInfo->LCDResInfo == Panel1280x1024)
@@ -7219,57 +6908,6 @@ unsigned char XGI_BridgeIsOn(struct vb_device_info *pVBInfo)
 	}
 }
 
-void XGI_LongWait(struct vb_device_info *pVBInfo)
-{
-	unsigned short i;
-
-	i = xgifb_reg_get(pVBInfo->P3c4, 0x1F);
-
-	if (!(i & 0xC0)) {
-		for (i = 0; i < 0xFFFF; i++) {
-			if (!(inb(pVBInfo->P3da) & 0x08))
-				break;
-		}
-
-		for (i = 0; i < 0xFFFF; i++) {
-			if ((inb(pVBInfo->P3da) & 0x08))
-				break;
-		}
-	}
-}
-
-static void XGI_VBLongWait(struct vb_device_info *pVBInfo)
-{
-	unsigned short tempal, temp, i, j;
-	return;
-	if (!(pVBInfo->VBInfo & SetCRT2ToTV)) {
-		temp = 0;
-		for (i = 0; i < 3; i++) {
-			for (j = 0; j < 100; j++) {
-				tempal = inb(pVBInfo->P3da);
-				if (temp & 0x01) { /* VBWaitMode2 */
-					if ((tempal & 0x08))
-						continue;
-
-					if (!(tempal & 0x08))
-						break;
-
-				} else { /* VBWaitMode1 */
-					if (!(tempal & 0x08))
-						continue;
-
-					if ((tempal & 0x08))
-						break;
-				}
-			}
-			temp = temp ^ 0x01;
-		}
-	} else {
-		XGI_LongWait(pVBInfo);
-	}
-	return;
-}
-
 unsigned short XGI_GetRatePtrCRT2(struct xgi_hw_device_info *pXGIHWDE,
 		unsigned short ModeNo, unsigned short ModeIdIndex,
 		struct vb_device_info *pVBInfo)
@@ -7322,12 +6960,6 @@ unsigned short XGI_GetRatePtrCRT2(struct xgi_hw_device_info *pXGIHWDE,
 	RefreshRateTableIndex = pVBInfo->EModeIDTable[ModeIdIndex].REFindex;
 	ModeNo = pVBInfo->RefIndex[RefreshRateTableIndex].ModeID;
 	if (pXGIHWDE->jChipType >= XG20) { /* for XG20, XG21, XG27 */
-		/*
-		if (pVBInfo->RefIndex[RefreshRateTableIndex].Ext_InfoFlag &
-		    XG2xNotSupport) {
-			index++;
-		}
-		*/
 		if ((pVBInfo->RefIndex[RefreshRateTableIndex].XRes == 800) &&
 		    (pVBInfo->RefIndex[RefreshRateTableIndex].YRes == 600)) {
 			index++;
@@ -7371,7 +7003,7 @@ unsigned short XGI_GetRatePtrCRT2(struct xgi_hw_device_info *pXGIHWDE,
 		temp = XGI_AjustCRT2Rate(ModeNo, ModeIdIndex,
 				RefreshRateTableIndex, &i, pVBInfo);
 	}
-	return RefreshRateTableIndex + i; /* return (0x01 | (temp1<<1)); */
+	return RefreshRateTableIndex + i;
 }
 
 static void XGI_SetLCDAGroup(unsigned short ModeNo, unsigned short ModeIdIndex,
@@ -7379,9 +7011,6 @@ static void XGI_SetLCDAGroup(unsigned short ModeNo, unsigned short ModeIdIndex,
 		struct vb_device_info *pVBInfo)
 {
 	unsigned short RefreshRateTableIndex;
-	/* unsigned short temp ; */
-
-	/* pVBInfo->SelectCRT2Rate = 0; */
 
 	pVBInfo->SetFlag |= ProgrammingCRT2;
 	RefreshRateTableIndex = XGI_GetRatePtrCRT2(HwDeviceExtension, ModeNo,
@@ -7394,7 +7023,7 @@ static void XGI_SetLCDAGroup(unsigned short ModeNo, unsigned short ModeIdIndex,
 	XGI_SetCRT2ECLK(ModeNo, ModeIdIndex, RefreshRateTableIndex, pVBInfo);
 }
 
-unsigned char XGI_SetCRT2Group301(unsigned short ModeNo,
+static unsigned char XGI_SetCRT2Group301(unsigned short ModeNo,
 		struct xgi_hw_device_info *HwDeviceExtension,
 		struct vb_device_info *pVBInfo)
 {
@@ -7499,10 +7128,6 @@ void XGI_SenseCRT1(struct vb_device_info *pVBInfo)
 		outb((unsigned char) DAC_TEST_PARMS[2], (pVBInfo->P3c8 + 1));
 	}
 
-	XGI_VBLongWait(pVBInfo);
-	XGI_VBLongWait(pVBInfo);
-	XGI_VBLongWait(pVBInfo);
-
 	mdelay(1);
 
 	XGI_WaitDisply(pVBInfo);
@@ -7532,7 +7157,8 @@ void XGI_SenseCRT1(struct vb_device_info *pVBInfo)
 	xgifb_reg_set(pVBInfo->P3c4, 0x1F, (unsigned char) SR1F);
 }
 
-void XGI_EnableBridge(struct xgi_hw_device_info *HwDeviceExtension,
+static void XGI_EnableBridge(struct xgifb_video_info *xgifb_info,
+		struct xgi_hw_device_info *HwDeviceExtension,
 		struct vb_device_info *pVBInfo)
 {
 	unsigned short tempah;
@@ -7544,7 +7170,6 @@ void XGI_EnableBridge(struct xgi_hw_device_info *HwDeviceExtension,
 				/* Power on */
 				xgifb_reg_set(pVBInfo->Part1Port, 0x1E, 0x20);
 			} else {
-				/* SetCRT2ToLCDA ) */
 				if (pVBInfo->VBInfo & SetCRT2ToDualEdge) {
 					/* Power on */
 					xgifb_reg_set(pVBInfo->Part1Port,
@@ -7572,10 +7197,8 @@ void XGI_EnableBridge(struct xgi_hw_device_info *HwDeviceExtension,
 						pVBInfo->Part1Port, 0x2E);
 
 				if (!(tempah & 0x80))
-					/* BVBDOENABLE = 1 */
 					xgifb_reg_or(pVBInfo->Part1Port,
 							0x2E, 0x80);
-				/* BScreenOFF = 0 */
 				xgifb_reg_and(pVBInfo->Part1Port, 0x00, 0x7F);
 			}
 		}
@@ -7638,12 +7261,11 @@ void XGI_EnableBridge(struct xgi_hw_device_info *HwDeviceExtension,
 		xgifb_reg_or(pVBInfo->Part4Port, 0x1F, tempah);
 
 		if (!(pVBInfo->SetFlag & DisableChA)) {
-			XGI_VBLongWait(pVBInfo);
 			if (!(pVBInfo->SetFlag & GatingCRT)) {
 				XGI_DisableGatingCRT(HwDeviceExtension,
 						     pVBInfo);
-				XGI_DisplayOn(HwDeviceExtension, pVBInfo);
-				XGI_VBLongWait(pVBInfo);
+				XGI_DisplayOn(xgifb_info, HwDeviceExtension,
+						pVBInfo);
 			}
 		}
 	} /* 301 */
@@ -7656,15 +7278,15 @@ void XGI_EnableBridge(struct xgi_hw_device_info *HwDeviceExtension,
 		tempah = (unsigned char) xgifb_reg_get(pVBInfo->Part1Port,
 				0x2E);
 		if (!(tempah & 0x80))
-			/* BVBDOENABLE = 1 */
 			xgifb_reg_or(pVBInfo->Part1Port, 0x2E, 0x80);
 
 		xgifb_reg_and(pVBInfo->Part1Port, 0x00, 0x7F);
-		XGI_DisplayOn(HwDeviceExtension, pVBInfo);
+		XGI_DisplayOn(xgifb_info, HwDeviceExtension, pVBInfo);
 	} /* End of VB */
 }
 
-static void XGI_SetCRT1Group(struct xgi_hw_device_info *HwDeviceExtension,
+static void XGI_SetCRT1Group(struct xgifb_video_info *xgifb_info,
+		struct xgi_hw_device_info *HwDeviceExtension,
 		unsigned short ModeNo, unsigned short ModeIdIndex,
 		struct vb_device_info *pVBInfo)
 {
@@ -7672,18 +7294,14 @@ static void XGI_SetCRT1Group(struct xgi_hw_device_info *HwDeviceExtension,
 
 	unsigned short XGINew_P3cc = pVBInfo->P3cc;
 
-	/* XGINew_CRT1Mode = ModeNo; // SaveModeID */
 	StandTableIndex = XGI_GetModePtr(ModeNo, ModeIdIndex, pVBInfo);
-	/* XGI_SetBIOSData(ModeNo, ModeIdIndex); */
-	/* XGI_ClearBankRegs(ModeNo, ModeIdIndex); */
 	XGI_SetSeqRegs(ModeNo, StandTableIndex, ModeIdIndex, pVBInfo);
-	XGI_SetMiscRegs(StandTableIndex, pVBInfo);
+	outb(pVBInfo->StandTable[StandTableIndex].MISC, pVBInfo->P3c2);
 	XGI_SetCRTCRegs(HwDeviceExtension, StandTableIndex, pVBInfo);
 	XGI_SetATTRegs(ModeNo, StandTableIndex, ModeIdIndex, pVBInfo);
 	XGI_SetGRCRegs(StandTableIndex, pVBInfo);
 	XGI_ClearExt1Regs(pVBInfo);
 
-	/* if (pVBInfo->IF_DEF_ExpLink) */
 	if (HwDeviceExtension->jChipType == XG27) {
 		if (pVBInfo->IF_DEF_LVDS == 0)
 			XGI_SetDefaultVCLK(pVBInfo);
@@ -7735,11 +7353,6 @@ static void XGI_SetCRT1Group(struct xgi_hw_device_info *HwDeviceExtension,
 		temp = xgifb_reg_get(pVBInfo->P3d4, 0x38);
 		if (temp & 0xA0) {
 
-			/* Enable write GPIOF */
-			/* xgifb_reg_and(pVBInfo->P3d4, 0x4A, ~0x20); */
-			/* P. DWN */
-			/* xgifb_reg_and(pVBInfo->P3d4, 0x48, ~0x20); */
-			/* XG21 CRT1 Timing */
 			if (HwDeviceExtension->jChipType == XG27)
 				XGI_SetXG27CRTC(ModeNo, ModeIdIndex,
 						RefreshRateTableIndex, pVBInfo);
@@ -7754,10 +7367,9 @@ static void XGI_SetCRT1Group(struct xgi_hw_device_info *HwDeviceExtension,
 					pVBInfo, RefreshRateTableIndex, ModeNo);
 
 			if (pVBInfo->IF_DEF_LVDS == 1)
-				xgifb_set_lvds(HwDeviceExtension->jChipType,
+				xgifb_set_lvds(xgifb_info,
+						HwDeviceExtension->jChipType,
 						ModeNo, ModeIdIndex, pVBInfo);
-			/* P. ON */
-			/* xgifb_reg_or(pVBInfo->P3d4, 0x48, 0x20); */
 		}
 	}
 
@@ -7765,22 +7377,16 @@ static void XGI_SetCRT1Group(struct xgi_hw_device_info *HwDeviceExtension,
 	XGI_SetCRT1FIFO(ModeNo, HwDeviceExtension, pVBInfo);
 	XGI_SetCRT1ModeRegs(HwDeviceExtension, ModeNo, ModeIdIndex,
 			RefreshRateTableIndex, pVBInfo);
-
-	/* XGI_LoadCharacter(); //dif ifdef TVFont */
-
 	XGI_LoadDAC(ModeNo, ModeIdIndex, pVBInfo);
-	/* XGI_ClearBuffer(HwDeviceExtension, ModeNo, pVBInfo); */
 }
 
-unsigned char XGISetModeNew(struct xgi_hw_device_info *HwDeviceExtension,
+unsigned char XGISetModeNew(struct xgifb_video_info *xgifb_info,
+			struct xgi_hw_device_info *HwDeviceExtension,
 			unsigned short ModeNo)
 {
 	unsigned short ModeIdIndex;
-	/* unsigned char *pVBInfo->FBAddr =
-				HwDeviceExtension->pjVideoMemoryAddress; */
 	struct vb_device_info VBINF;
 	struct vb_device_info *pVBInfo = &VBINF;
-	pVBInfo->ROMAddr = HwDeviceExtension->pjVirtualRomBase;
 	pVBInfo->BaseAddr = (unsigned long) HwDeviceExtension->pjIOAddress;
 	pVBInfo->IF_DEF_LVDS = 0;
 	pVBInfo->IF_DEF_LCDA = 1;
@@ -7831,14 +7437,8 @@ unsigned char XGISetModeNew(struct xgi_hw_device_info *HwDeviceExtension,
 		XGI_GetVBType(pVBInfo);
 
 	InitTo330Pointer(HwDeviceExtension->jChipType, pVBInfo);
-	if (ModeNo & 0x80) {
+	if (ModeNo & 0x80)
 		ModeNo = ModeNo & 0x7F;
-		/* XGINew_flag_clearbuffer = 0; */
-	}
-	/* else {
-		XGINew_flag_clearbuffer = 1;
-	}
-	*/
 	xgifb_reg_set(pVBInfo->P3c4, 0x05, 0x86);
 
 	if (HwDeviceExtension->jChipType < XG20) /* kuku 2004/06/25 1.Openkey */
@@ -7846,16 +7446,14 @@ unsigned char XGISetModeNew(struct xgi_hw_device_info *HwDeviceExtension,
 
 	XGI_SearchModeID(ModeNo, &ModeIdIndex, pVBInfo);
 
-	XGI_GetVGAType(HwDeviceExtension, pVBInfo);
-
 	if (HwDeviceExtension->jChipType < XG20) { /* kuku 2004/06/25 */
 		XGI_GetVBInfo(ModeNo, ModeIdIndex, HwDeviceExtension, pVBInfo);
 		XGI_GetTVInfo(ModeNo, ModeIdIndex, pVBInfo);
 		XGI_GetLCDInfo(ModeNo, ModeIdIndex, pVBInfo);
-		XGI_DisableBridge(HwDeviceExtension, pVBInfo);
+		XGI_DisableBridge(xgifb_info, HwDeviceExtension, pVBInfo);
 
 		if (pVBInfo->VBInfo & (SetSimuScanMode | SetCRT2ToLCDA)) {
-			XGI_SetCRT1Group(HwDeviceExtension, ModeNo,
+			XGI_SetCRT1Group(xgifb_info, HwDeviceExtension, ModeNo,
 					ModeIdIndex, pVBInfo);
 
 			if (pVBInfo->VBInfo & SetCRT2ToLCDA) {
@@ -7864,7 +7462,8 @@ unsigned char XGISetModeNew(struct xgi_hw_device_info *HwDeviceExtension,
 			}
 		} else {
 			if (!(pVBInfo->VBInfo & SwitchToCRT2)) {
-				XGI_SetCRT1Group(HwDeviceExtension, ModeNo,
+				XGI_SetCRT1Group(xgifb_info,
+						HwDeviceExtension, ModeNo,
 						ModeIdIndex, pVBInfo);
 				if (pVBInfo->VBInfo & SetCRT2ToLCDA) {
 					XGI_SetLCDAGroup(ModeNo, ModeIdIndex,
@@ -7894,11 +7493,11 @@ unsigned char XGISetModeNew(struct xgi_hw_device_info *HwDeviceExtension,
 		XGI_SetCRT2ModeRegs(ModeNo, HwDeviceExtension, pVBInfo);
 		XGI_OEM310Setting(ModeNo, ModeIdIndex, pVBInfo); /*0212*/
 		XGI_CloseCRTC(HwDeviceExtension, pVBInfo);
-		XGI_EnableBridge(HwDeviceExtension, pVBInfo);
+		XGI_EnableBridge(xgifb_info, HwDeviceExtension, pVBInfo);
 	} /* !XG20 */
 	else {
 		if (pVBInfo->IF_DEF_LVDS == 1)
-			if (!XGI_XG21CheckLVDSMode(ModeNo,
+			if (!XGI_XG21CheckLVDSMode(xgifb_info, ModeNo,
 						   ModeIdIndex,
 						   pVBInfo))
 				return 0;
@@ -7914,39 +7513,13 @@ unsigned char XGISetModeNew(struct xgi_hw_device_info *HwDeviceExtension,
 		pVBInfo->SetFlag = 0;
 		pVBInfo->VBInfo = DisableCRT2Display;
 
-		XGI_DisplayOff(HwDeviceExtension, pVBInfo);
+		XGI_DisplayOff(xgifb_info, HwDeviceExtension, pVBInfo);
 
-		XGI_SetCRT1Group(HwDeviceExtension, ModeNo, ModeIdIndex,
-				pVBInfo);
+		XGI_SetCRT1Group(xgifb_info, HwDeviceExtension, ModeNo,
+				ModeIdIndex, pVBInfo);
 
-		XGI_DisplayOn(HwDeviceExtension, pVBInfo);
-		/*
-		if (HwDeviceExtension->jChipType == XG21)
-			xgifb_reg_and_or(pVBInfo->P3c4, 0x09, ~0x80, 0x80);
-		*/
-	}
-
-	/*
-	if (ModeNo <= 0x13) {
-		modeflag = pVBInfo->SModeIDTable[ModeIdIndex].St_ModeFlag;
-	} else {
-		modeflag = pVBInfo->EModeIDTable[ModeIdIndex].Ext_ModeFlag;
+		XGI_DisplayOn(xgifb_info, HwDeviceExtension, pVBInfo);
 	}
-	pVBInfo->ModeType = modeflag&ModeInfoFlag;
-	pVBInfo->SetFlag = 0x00;
-	pVBInfo->VBInfo = DisableCRT2Display;
-	temp = XGINew_CheckMemorySize(HwDeviceExtension,
-				      ModeNo,
-				      ModeIdIndex,
-				      pVBInfo);
-
-	if (temp == 0)
-		return (0);
-
-	XGI_DisplayOff(HwDeviceExtension, pVBInfo) ;
-	XGI_SetCRT1Group(HwDeviceExtension, ModeNo, ModeIdIndex, pVBInfo);
-	XGI_DisplayOn(HwDeviceExtension, pVBInfo);
-	*/
 
 	XGI_UpdateModeInfo(HwDeviceExtension, pVBInfo);
 
diff --git a/drivers/staging/xgifb/vb_setmode.h b/drivers/staging/xgifb/vb_setmode.h
index 1bd8667ff5cf..552482858c1c 100644
--- a/drivers/staging/xgifb/vb_setmode.h
+++ b/drivers/staging/xgifb/vb_setmode.h
@@ -6,66 +6,22 @@ extern void XGI_UnLockCRT2(struct xgi_hw_device_info *HwDeviceExtension,
 			   struct vb_device_info *);
 extern void XGI_LockCRT2(struct xgi_hw_device_info *HwDeviceExtension,
 			 struct vb_device_info *);
-extern void XGI_LongWait(struct vb_device_info *);
-extern void XGI_SetCRT2ModeRegs(unsigned short ModeNo,
-				struct xgi_hw_device_info *,
-				struct vb_device_info *);
-extern void XGI_DisableBridge(struct xgi_hw_device_info *HwDeviceExtension,
-			      struct vb_device_info *);
-extern void XGI_EnableBridge(struct xgi_hw_device_info *HwDeviceExtension,
-			     struct vb_device_info *);
-extern void XGI_DisplayOff(struct xgi_hw_device_info *,
+extern void XGI_DisplayOff(struct xgifb_video_info *,
+			   struct xgi_hw_device_info *,
 			   struct vb_device_info *);
-extern void XGI_DisplayOn(struct xgi_hw_device_info *,
-			  struct vb_device_info *);
 extern void XGI_GetVBType(struct vb_device_info *);
 extern void XGI_SenseCRT1(struct vb_device_info *);
-extern void XGI_GetVGAType(struct xgi_hw_device_info *HwDeviceExtension,
-			   struct vb_device_info *);
-extern void XGI_GetVBInfo(unsigned short ModeNo,
-			  unsigned short ModeIdIndex,
-			  struct xgi_hw_device_info *HwDeviceExtension,
-			  struct vb_device_info *);
-extern void XGI_GetTVInfo(unsigned short ModeNo,
-			  unsigned short ModeIdIndex,
-			  struct vb_device_info *);
-extern unsigned short XGI_GetResInfo(unsigned short ModeNo,
-				     unsigned short ModeIdIndex,
-				     struct vb_device_info *pVBInfo);
-
-extern unsigned char XGISetModeNew(struct xgi_hw_device_info *HwDeviceExtension,
+extern unsigned char XGISetModeNew(struct xgifb_video_info *xgifb_info,
+				   struct xgi_hw_device_info *HwDeviceExtension,
 				   unsigned short ModeNo) ;
 
 extern unsigned char XGI_SearchModeID(unsigned short ModeNo,
 				      unsigned short *ModeIdIndex,
 				      struct vb_device_info *);
-extern unsigned char XGI_GetLCDInfo(unsigned short ModeNo,
-				    unsigned short ModeIdIndex,
-				    struct vb_device_info *);
 extern unsigned char XGI_BridgeIsOn(struct vb_device_info *);
-
-extern unsigned char
-XGI_SetCRT2Group301(unsigned short ModeNo,
-		    struct xgi_hw_device_info *HwDeviceExtension,
-		    struct vb_device_info *);
 extern unsigned short XGI_GetRatePtrCRT2(struct xgi_hw_device_info *pXGIHWDE,
 					 unsigned short ModeNo,
 					 unsigned short ModeIdIndex,
 					 struct vb_device_info *);
 
-extern void XGI_SetXG21FPBits(struct vb_device_info *pVBInfo);
-extern void XGI_SetXG27FPBits(struct vb_device_info *pVBInfo);
-extern void XGI_XG21BLSignalVDD(unsigned short tempbh,
-				unsigned short tempbl,
-				struct vb_device_info *pVBInfo);
-extern void XGI_XG27BLSignalVDD(unsigned short tempbh,
-				unsigned short tempbl,
-				struct vb_device_info *pVBInfo);
-extern void XGI_XG21SetPanelDelay(unsigned short tempbl,
-				  struct vb_device_info *pVBInfo);
-extern unsigned char XGI_XG21CheckLVDSMode(unsigned short ModeNo,
-					   unsigned short ModeIdIndex,
-					   struct vb_device_info *pVBInfo);
-extern unsigned short XGI_GetLVDSOEMTableIndex(struct vb_device_info *pVBInfo);
-
 #endif
diff --git a/drivers/staging/xgifb/vb_struct.h b/drivers/staging/xgifb/vb_struct.h
index f9ade6f9f7ee..6556a0d6ff82 100644
--- a/drivers/staging/xgifb/vb_struct.h
+++ b/drivers/staging/xgifb/vb_struct.h
@@ -293,13 +293,12 @@ struct vb_device_info {
 	unsigned short   IF_DEF_ExpLink;
 	unsigned short   IF_DEF_HiVision;
 	unsigned short   LCDResInfo, LCDTypeInfo, VBType;/*301b*/
-	unsigned short   VBInfo, TVInfo, LCDInfo, Set_VGAType;
+	unsigned short   VBInfo, TVInfo, LCDInfo;
 	unsigned short   VBExtInfo;/*301lv*/
 	unsigned short   SetFlag;
 	unsigned short   NewFlickerMode;
 	unsigned short   SelectCRT2Rate;
 
-	unsigned char *ROMAddr;
 	void __iomem *FBAddr;
 	unsigned long BaseAddr;
 	unsigned long RelIO;
@@ -376,7 +375,6 @@ struct vb_device_info {
 	unsigned char   *pXGINew_CR97 ;
 
 	struct XGI330_LCDCapStruct  *LCDCapList;
-	struct XGI21_LVDSCapStruct  *XG21_LVDSCapList;
 
 	struct XGI_TimingHStruct  *TimingH;
 	struct XGI_TimingVStruct  *TimingV;
diff --git a/drivers/staging/xgifb/vb_table.h b/drivers/staging/xgifb/vb_table.h
index b81ac7726d1c..e7946f1c1143 100644
--- a/drivers/staging/xgifb/vb_table.h
+++ b/drivers/staging/xgifb/vb_table.h
@@ -2569,33 +2569,6 @@ static struct XGI330_LCDCapStruct  XGI_LCDCapList[] = {
 	0x30, 0x10, 0x5A, 0x10, 0x10, 0x0A, 0xC0, 0x28, 0x10}
 };
 
-struct XGI21_LVDSCapStruct XGI21_LCDCapList[] = {
-	{DisableLCD24bpp + LCDPolarity,
-	 2160, 1250, 1600, 1200,   64,    1,  192,    3,
-	 0x70, 0x24, 0x20, 0x04, 0x0A, 0x02, 0xC8
-	},
-	{DisableLCD24bpp + LCDPolarity,
-	 1688, 1066, 1280, 1024,   48,    1,   112,    3,
-	 0x70, 0x44, 0x20, 0x04, 0x0A, 0x02, 0xC8
-	},
-	{DisableLCD24bpp + LCDPolarity + (LCDPolarity << 8),
-	 1344,  806, 1024,  768,   24,    3,   136,    6,
-	 0x6C, 0x65, 0x20, 0x04, 0x0A, 0x02, 0xC8
-	},
-	{DisableLCD24bpp + LCDPolarity,
-	 1056,  628,  800,  600,   40,    1,  128,    4,
-	 0x42, 0xE2, 0x20, 0x14, 0x0A, 0x02, 0x00
-	},
-	{DisableLCD24bpp + LCDPolarity,
-	  928,  525,  800,  480,   40,   13,   48,    3,
-	 0x52, 0xC5, 0x20, 0x14, 0x0A, 0x02, 0x00
-	},
-	{DisableLCD24bpp + LCDPolarity + (LCDPolarity << 8),
-	  800,  525,  640,  480,   16,   10,   96,    2,
-	 0x1B, 0xE1, 0x20, 0x04, 0x0A, 0x02, 0xC8
-	}
-};
-
 static struct XGI_Ext2Struct XGI330_RefIndex[] = {
 	{Support32Bpp + SupportAllCRT2 + SyncPN, RES320x200, VCLK25_175,
 	0x00, 0x10, 0x59, 320, 200},/* 00 */
diff --git a/drivers/staging/xgifb/vgatypes.h b/drivers/staging/xgifb/vgatypes.h
index 9b939b75c309..9e166bbb00c4 100644
--- a/drivers/staging/xgifb/vgatypes.h
+++ b/drivers/staging/xgifb/vgatypes.h
@@ -51,8 +51,6 @@ struct xgi_hw_device_info {
 	unsigned long ulExternalChip; /* NO VB or other video bridge*/
 				      /* if ujVBChipID = VB_CHIP_UNKNOWN, */
 
-	unsigned char *pjVirtualRomBase; /* ROM image */
-
 	void __iomem *pjVideoMemoryAddress;/* base virtual memory address */
 					    /* of Linear VGA memory */
 
diff --git a/drivers/staging/zcache/zcache-main.c b/drivers/staging/zcache/zcache-main.c
index 56c1f9c80dc1..642840c612ac 100644
--- a/drivers/staging/zcache/zcache-main.c
+++ b/drivers/staging/zcache/zcache-main.c
@@ -787,7 +787,7 @@ static ssize_t zv_max_zsize_store(struct kobject *kobj,
 	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
 
-	err = strict_strtoul(buf, 10, &val);
+	err = kstrtoul(buf, 10, &val);
 	if (err || (val == 0) || (val > (PAGE_SIZE / 8) * 7))
 		return -EINVAL;
 	zv_max_zsize = val;
@@ -819,7 +819,7 @@ static ssize_t zv_max_mean_zsize_store(struct kobject *kobj,
 	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
 
-	err = strict_strtoul(buf, 10, &val);
+	err = kstrtoul(buf, 10, &val);
 	if (err || (val == 0) || (val > (PAGE_SIZE / 8) * 7))
 		return -EINVAL;
 	zv_max_mean_zsize = val;
@@ -853,7 +853,7 @@ static ssize_t zv_page_count_policy_percent_store(struct kobject *kobj,
 	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
 
-	err = strict_strtoul(buf, 10, &val);
+	err = kstrtoul(buf, 10, &val);
 	if (err || (val == 0) || (val > 150))
 		return -EINVAL;
 	zv_page_count_policy_percent = val;
diff --git a/drivers/staging/zram/zram_drv.c b/drivers/staging/zram/zram_drv.c
index 09de99fbb7e0..2a2a92d389e6 100644
--- a/drivers/staging/zram/zram_drv.c
+++ b/drivers/staging/zram/zram_drv.c
@@ -653,7 +653,8 @@ int zram_init_device(struct zram *zram)
 		goto fail_no_table;
 	}
 
-	zram->compress_buffer = (void *)__get_free_pages(__GFP_ZERO, 1);
+	zram->compress_buffer =
+		(void *)__get_free_pages(GFP_KERNEL | __GFP_ZERO, 1);
 	if (!zram->compress_buffer) {
 		pr_err("Error allocating compressor buffer space\n");
 		ret = -ENOMEM;
diff --git a/drivers/staging/zram/zram_sysfs.c b/drivers/staging/zram/zram_sysfs.c
index 0ea8ed296a9d..d521122826f6 100644
--- a/drivers/staging/zram/zram_sysfs.c
+++ b/drivers/staging/zram/zram_sysfs.c
@@ -58,7 +58,7 @@ static ssize_t disksize_store(struct device *dev,
 	u64 disksize;
 	struct zram *zram = dev_to_zram(dev);
 
-	ret = strict_strtoull(buf, 10, &disksize);
+	ret = kstrtoull(buf, 10, &disksize);
 	if (ret)
 		return ret;
 
@@ -88,7 +88,7 @@ static ssize_t reset_store(struct device *dev,
 		struct device_attribute *attr, const char *buf, size_t len)
 {
 	int ret;
-	unsigned long do_reset;
+	unsigned short do_reset;
 	struct zram *zram;
 	struct block_device *bdev;
 
@@ -99,7 +99,7 @@ static ssize_t reset_store(struct device *dev,
 	if (bdev->bd_holders)
 		return -EBUSY;
 
-	ret = strict_strtoul(buf, 10, &do_reset);
+	ret = kstrtou16(buf, 10, &do_reset);
 	if (ret)
 		return ret;
 
diff --git a/drivers/tty/n_hdlc.c b/drivers/tty/n_hdlc.c
index cea56033b34c..a09ce3ef5d74 100644
--- a/drivers/tty/n_hdlc.c
+++ b/drivers/tty/n_hdlc.c
@@ -417,7 +417,7 @@ static void n_hdlc_send_frames(struct n_hdlc *n_hdlc, struct tty_struct *tty)
 				__FILE__,__LINE__,tbuf,tbuf->count);
 			
 		/* Send the next block of data to device */
-		tty->flags |= (1 << TTY_DO_WRITE_WAKEUP);
+		set_bit(TTY_DO_WRITE_WAKEUP, &tty->flags);
 		actual = tty->ops->write(tty, tbuf->buf, tbuf->count);
 
 		/* rollback was possible and has been done */
@@ -459,7 +459,7 @@ static void n_hdlc_send_frames(struct n_hdlc *n_hdlc, struct tty_struct *tty)
 	}
 	
 	if (!tbuf)
-		tty->flags  &= ~(1 << TTY_DO_WRITE_WAKEUP);
+		clear_bit(TTY_DO_WRITE_WAKEUP, &tty->flags);
 	
 	/* Clear the re-entry flag */
 	spin_lock_irqsave(&n_hdlc->tx_buf_list.spinlock, flags);
@@ -491,7 +491,7 @@ static void n_hdlc_tty_wakeup(struct tty_struct *tty)
 		return;
 
 	if (tty != n_hdlc->tty) {
-		tty->flags &= ~(1 << TTY_DO_WRITE_WAKEUP);
+		clear_bit(TTY_DO_WRITE_WAKEUP, &tty->flags);
 		return;
 	}
 
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index 39d6ab6551e0..d2256d08ee7e 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -61,7 +61,7 @@
  * controlling the space in the read buffer.
  */
 #define TTY_THRESHOLD_THROTTLE		128 /* now based on remaining room */
-#define TTY_THRESHOLD_UNTHROTTLE 	128
+#define TTY_THRESHOLD_UNTHROTTLE	128
 
 /*
  * Special byte codes used in the echo buffer to represent operations
@@ -405,7 +405,7 @@ static ssize_t process_output_block(struct tty_struct *tty,
 				    const unsigned char *buf, unsigned int nr)
 {
 	int	space;
-	int 	i;
+	int	i;
 	const unsigned char *cp;
 
 	mutex_lock(&tty->output_lock);
@@ -1607,7 +1607,7 @@ static inline int input_available_p(struct tty_struct *tty, int amt)
 }
 
 /**
- * 	copy_from_read_buf	-	copy read data directly
+ *	copy_from_read_buf	-	copy read data directly
  *	@tty: terminal device
  *	@b: user data
  *	@nr: size of data
@@ -1909,7 +1909,7 @@ do_it_again:
 		if (nr)
 			clear_bit(TTY_PUSH, &tty->flags);
 	} else if (test_and_clear_bit(TTY_PUSH, &tty->flags))
-		 goto do_it_again;
+		goto do_it_again;
 
 	n_tty_set_room(tty);
 	return retval;
diff --git a/drivers/tty/pty.c b/drivers/tty/pty.c
index e18604b3fc7d..d8653ab6f498 100644
--- a/drivers/tty/pty.c
+++ b/drivers/tty/pty.c
@@ -446,19 +446,8 @@ static inline void legacy_pty_init(void) { }
 int pty_limit = NR_UNIX98_PTY_DEFAULT;
 static int pty_limit_min;
 static int pty_limit_max = NR_UNIX98_PTY_MAX;
-static int tty_count;
 static int pty_count;
 
-static inline void pty_inc_count(void)
-{
-	pty_count = (++tty_count) / 2;
-}
-
-static inline void pty_dec_count(void)
-{
-	pty_count = (--tty_count) / 2;
-}
-
 static struct cdev ptmx_cdev;
 
 static struct ctl_table pty_table[] = {
@@ -600,8 +589,7 @@ static int pty_unix98_install(struct tty_driver *driver, struct tty_struct *tty)
 	 */
 	tty_driver_kref_get(driver);
 	tty->count++;
-	pty_inc_count(); /* tty */
-	pty_inc_count(); /* tty->link */
+	pty_count++;
 	return 0;
 err_free_mem:
 	deinitialize_tty_struct(o_tty);
@@ -613,15 +601,19 @@ err_free_tty:
 	return -ENOMEM;
 }
 
-static void pty_unix98_remove(struct tty_driver *driver, struct tty_struct *tty)
+static void ptm_unix98_remove(struct tty_driver *driver, struct tty_struct *tty)
+{
+	pty_count--;
+}
+
+static void pts_unix98_remove(struct tty_driver *driver, struct tty_struct *tty)
 {
-	pty_dec_count();
 }
 
 static const struct tty_operations ptm_unix98_ops = {
 	.lookup = ptm_unix98_lookup,
 	.install = pty_unix98_install,
-	.remove = pty_unix98_remove,
+	.remove = ptm_unix98_remove,
 	.open = pty_open,
 	.close = pty_close,
 	.write = pty_write,
@@ -638,7 +630,7 @@ static const struct tty_operations ptm_unix98_ops = {
 static const struct tty_operations pty_unix98_ops = {
 	.lookup = pts_unix98_lookup,
 	.install = pty_unix98_install,
-	.remove = pty_unix98_remove,
+	.remove = pts_unix98_remove,
 	.open = pty_open,
 	.close = pty_close,
 	.write = pty_write,
diff --git a/drivers/tty/serial/8250.c b/drivers/tty/serial/8250.c
index eeadf1b8e093..9f50c4e3c2be 100644
--- a/drivers/tty/serial/8250.c
+++ b/drivers/tty/serial/8250.c
@@ -129,32 +129,6 @@ static unsigned long probe_rsa[PORT_RSA_MAX];
 static unsigned int probe_rsa_count;
 #endif /* CONFIG_SERIAL_8250_RSA  */
 
-struct uart_8250_port {
-	struct uart_port	port;
-	struct timer_list	timer;		/* "no irq" timer */
-	struct list_head	list;		/* ports on this IRQ */
-	unsigned short		capabilities;	/* port capabilities */
-	unsigned short		bugs;		/* port bugs */
-	unsigned int		tx_loadsz;	/* transmit fifo load size */
-	unsigned char		acr;
-	unsigned char		ier;
-	unsigned char		lcr;
-	unsigned char		mcr;
-	unsigned char		mcr_mask;	/* mask of user bits */
-	unsigned char		mcr_force;	/* mask of forced bits */
-	unsigned char		cur_iotype;	/* Running I/O type */
-
-	/*
-	 * Some bits in registers are cleared on a read, so they must
-	 * be saved whenever the register is read but the bits will not
-	 * be immediately processed.
-	 */
-#define LSR_SAVE_FLAGS UART_LSR_BRK_ERROR_BITS
-	unsigned char		lsr_saved_flags;
-#define MSR_SAVE_FLAGS UART_MSR_ANY_DELTA
-	unsigned char		msr_saved_flags;
-};
-
 struct irq_info {
 	struct			hlist_node node;
 	int			irq;
@@ -1326,8 +1300,6 @@ static void serial8250_stop_tx(struct uart_port *port)
 	}
 }
 
-static void transmit_chars(struct uart_8250_port *up);
-
 static void serial8250_start_tx(struct uart_port *port)
 {
 	struct uart_8250_port *up =
@@ -1344,7 +1316,7 @@ static void serial8250_start_tx(struct uart_port *port)
 			if ((up->port.type == PORT_RM9000) ?
 				(lsr & UART_LSR_THRE) :
 				(lsr & UART_LSR_TEMT))
-				transmit_chars(up);
+				serial8250_tx_chars(up);
 		}
 	}
 
@@ -1401,11 +1373,16 @@ static void clear_rx_fifo(struct uart_8250_port *up)
 	} while (1);
 }
 
-static void
-receive_chars(struct uart_8250_port *up, unsigned int *status)
+/*
+ * serial8250_rx_chars: processes according to the passed in LSR
+ * value, and returns the remaining LSR bits not handled
+ * by this Rx routine.
+ */
+unsigned char
+serial8250_rx_chars(struct uart_8250_port *up, unsigned char lsr)
 {
 	struct tty_struct *tty = up->port.state->port.tty;
-	unsigned char ch, lsr = *status;
+	unsigned char ch;
 	int max_count = 256;
 	char flag;
 
@@ -1481,10 +1458,11 @@ ignore_char:
 	spin_unlock(&up->port.lock);
 	tty_flip_buffer_push(tty);
 	spin_lock(&up->port.lock);
-	*status = lsr;
+	return lsr;
 }
+EXPORT_SYMBOL_GPL(serial8250_rx_chars);
 
-static void transmit_chars(struct uart_8250_port *up)
+void serial8250_tx_chars(struct uart_8250_port *up)
 {
 	struct circ_buf *xmit = &up->port.state->xmit;
 	int count;
@@ -1521,8 +1499,9 @@ static void transmit_chars(struct uart_8250_port *up)
 	if (uart_circ_empty(xmit))
 		__stop_tx(up);
 }
+EXPORT_SYMBOL_GPL(serial8250_tx_chars);
 
-static unsigned int check_modem_status(struct uart_8250_port *up)
+unsigned int serial8250_modem_status(struct uart_8250_port *up)
 {
 	unsigned int status = serial_in(up, UART_MSR);
 
@@ -1544,14 +1523,20 @@ static unsigned int check_modem_status(struct uart_8250_port *up)
 
 	return status;
 }
+EXPORT_SYMBOL_GPL(serial8250_modem_status);
 
 /*
  * This handles the interrupt from one port.
  */
-static void serial8250_handle_port(struct uart_8250_port *up)
+int serial8250_handle_irq(struct uart_port *port, unsigned int iir)
 {
-	unsigned int status;
+	unsigned char status;
 	unsigned long flags;
+	struct uart_8250_port *up =
+		container_of(port, struct uart_8250_port, port);
+
+	if (iir & UART_IIR_NO_INT)
+		return 0;
 
 	spin_lock_irqsave(&up->port.lock, flags);
 
@@ -1560,25 +1545,13 @@ static void serial8250_handle_port(struct uart_8250_port *up)
 	DEBUG_INTR("status = %x...", status);
 
 	if (status & (UART_LSR_DR | UART_LSR_BI))
-		receive_chars(up, &status);
-	check_modem_status(up);
+		status = serial8250_rx_chars(up, status);
+	serial8250_modem_status(up);
 	if (status & UART_LSR_THRE)
-		transmit_chars(up);
+		serial8250_tx_chars(up);
 
 	spin_unlock_irqrestore(&up->port.lock, flags);
-}
-
-int serial8250_handle_irq(struct uart_port *port, unsigned int iir)
-{
-	struct uart_8250_port *up =
-		container_of(port, struct uart_8250_port, port);
-
-	if (!(iir & UART_IIR_NO_INT)) {
-		serial8250_handle_port(up);
-		return 1;
-	}
-
-	return 0;
+	return 1;
 }
 EXPORT_SYMBOL_GPL(serial8250_handle_irq);
 
@@ -1619,11 +1592,13 @@ static irqreturn_t serial8250_interrupt(int irq, void *dev_id)
 	do {
 		struct uart_8250_port *up;
 		struct uart_port *port;
+		bool skip;
 
 		up = list_entry(l, struct uart_8250_port, list);
 		port = &up->port;
+		skip = pass_counter && up->port.flags & UPF_IIR_ONCE;
 
-		if (port->handle_irq(port)) {
+		if (!skip && port->handle_irq(port)) {
 			handled = 1;
 			end = NULL;
 		} else if (end == NULL)
@@ -1758,11 +1733,8 @@ static void serial_unlink_irq_chain(struct uart_8250_port *up)
 static void serial8250_timeout(unsigned long data)
 {
 	struct uart_8250_port *up = (struct uart_8250_port *)data;
-	unsigned int iir;
 
-	iir = serial_in(up, UART_IIR);
-	if (!(iir & UART_IIR_NO_INT))
-		serial8250_handle_port(up);
+	up->port.handle_irq(&up->port);
 	mod_timer(&up->timer, jiffies + uart_poll_timeout(&up->port));
 }
 
@@ -1801,7 +1773,7 @@ static void serial8250_backup_timeout(unsigned long data)
 	}
 
 	if (!(iir & UART_IIR_NO_INT))
-		transmit_chars(up);
+		serial8250_tx_chars(up);
 
 	if (is_real_interrupt(up->port.irq))
 		serial_out(up, UART_IER, ier);
@@ -1835,7 +1807,7 @@ static unsigned int serial8250_get_mctrl(struct uart_port *port)
 	unsigned int status;
 	unsigned int ret;
 
-	status = check_modem_status(up);
+	status = serial8250_modem_status(up);
 
 	ret = 0;
 	if (status & UART_MSR_DCD)
@@ -2000,7 +1972,7 @@ static int serial8250_startup(struct uart_port *port)
 		serial_outp(up, UART_IER, 0);
 		serial_outp(up, UART_LCR, 0);
 		serial_icr_write(up, UART_CSR, 0); /* Reset the UART */
-		serial_outp(up, UART_LCR, 0xBF);
+		serial_outp(up, UART_LCR, UART_LCR_CONF_MODE_B);
 		serial_outp(up, UART_EFR, UART_EFR_ECB);
 		serial_outp(up, UART_LCR, 0);
 	}
@@ -2848,7 +2820,7 @@ serial8250_console_write(struct console *co, const char *s, unsigned int count)
 
 	local_irq_save(flags);
 	if (up->port.sysrq) {
-		/* serial8250_handle_port() already took the lock */
+		/* serial8250_handle_irq() already took the lock */
 		locked = 0;
 	} else if (oops_in_progress) {
 		locked = spin_trylock(&up->port.lock);
@@ -2882,7 +2854,7 @@ serial8250_console_write(struct console *co, const char *s, unsigned int count)
 	 *	while processing with interrupts off.
 	 */
 	if (up->msr_saved_flags)
-		check_modem_status(up);
+		serial8250_modem_status(up);
 
 	if (locked)
 		spin_unlock(&up->port.lock);
diff --git a/drivers/tty/serial/8250.h b/drivers/tty/serial/8250.h
index 6edf4a6a22d4..ae027be57e25 100644
--- a/drivers/tty/serial/8250.h
+++ b/drivers/tty/serial/8250.h
@@ -13,6 +13,32 @@
 
 #include <linux/serial_8250.h>
 
+struct uart_8250_port {
+	struct uart_port	port;
+	struct timer_list	timer;		/* "no irq" timer */
+	struct list_head	list;		/* ports on this IRQ */
+	unsigned short		capabilities;	/* port capabilities */
+	unsigned short		bugs;		/* port bugs */
+	unsigned int		tx_loadsz;	/* transmit fifo load size */
+	unsigned char		acr;
+	unsigned char		ier;
+	unsigned char		lcr;
+	unsigned char		mcr;
+	unsigned char		mcr_mask;	/* mask of user bits */
+	unsigned char		mcr_force;	/* mask of forced bits */
+	unsigned char		cur_iotype;	/* Running I/O type */
+
+	/*
+	 * Some bits in registers are cleared on a read, so they must
+	 * be saved whenever the register is read but the bits will not
+	 * be immediately processed.
+	 */
+#define LSR_SAVE_FLAGS UART_LSR_BRK_ERROR_BITS
+	unsigned char		lsr_saved_flags;
+#define MSR_SAVE_FLAGS UART_MSR_ANY_DELTA
+	unsigned char		msr_saved_flags;
+};
+
 struct old_serial_port {
 	unsigned int uart;
 	unsigned int baud_base;
diff --git a/drivers/tty/serial/8250_dw.c b/drivers/tty/serial/8250_dw.c
index bf1fba640c2d..f574eef3075f 100644
--- a/drivers/tty/serial/8250_dw.c
+++ b/drivers/tty/serial/8250_dw.c
@@ -177,17 +177,7 @@ static struct platform_driver dw8250_platform_driver = {
 	.remove			= __devexit_p(dw8250_remove),
 };
 
-static int __init dw8250_init(void)
-{
-	return platform_driver_register(&dw8250_platform_driver);
-}
-module_init(dw8250_init);
-
-static void __exit dw8250_exit(void)
-{
-	platform_driver_unregister(&dw8250_platform_driver);
-}
-module_exit(dw8250_exit);
+module_platform_driver(dw8250_platform_driver);
 
 MODULE_AUTHOR("Jamie Iles");
 MODULE_LICENSE("GPL");
diff --git a/drivers/tty/serial/8250_fsl.c b/drivers/tty/serial/8250_fsl.c
new file mode 100644
index 000000000000..f4d3c47b88e8
--- /dev/null
+++ b/drivers/tty/serial/8250_fsl.c
@@ -0,0 +1,63 @@
+#include <linux/serial_reg.h>
+#include <linux/serial_8250.h>
+
+#include "8250.h"
+
+/*
+ * Freescale 16550 UART "driver", Copyright (C) 2011 Paul Gortmaker.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * This isn't a full driver; it just provides an alternate IRQ
+ * handler to deal with an errata.  Everything else is just
+ * using the bog standard 8250 support.
+ *
+ * We follow code flow of serial8250_default_handle_irq() but add
+ * a check for a break and insert a dummy read on the Rx for the
+ * immediately following IRQ event.
+ *
+ * We re-use the already existing "bug handling" lsr_saved_flags
+ * field to carry the "what we just did" information from the one
+ * IRQ event to the next one.
+ */
+
+int fsl8250_handle_irq(struct uart_port *port)
+{
+	unsigned char lsr, orig_lsr;
+	unsigned long flags;
+	unsigned int iir;
+	struct uart_8250_port *up =
+		container_of(port, struct uart_8250_port, port);
+
+	spin_lock_irqsave(&up->port.lock, flags);
+
+	iir = port->serial_in(port, UART_IIR);
+	if (iir & UART_IIR_NO_INT) {
+		spin_unlock_irqrestore(&up->port.lock, flags);
+		return 0;
+	}
+
+	/* This is the WAR; if last event was BRK, then read and return */
+	if (unlikely(up->lsr_saved_flags & UART_LSR_BI)) {
+		up->lsr_saved_flags &= ~UART_LSR_BI;
+		port->serial_in(port, UART_RX);
+		spin_unlock_irqrestore(&up->port.lock, flags);
+		return 1;
+	}
+
+	lsr = orig_lsr = up->port.serial_in(&up->port, UART_LSR);
+
+	if (lsr & (UART_LSR_DR | UART_LSR_BI))
+		lsr = serial8250_rx_chars(up, lsr);
+
+	serial8250_modem_status(up);
+
+	if (lsr & UART_LSR_THRE)
+		serial8250_tx_chars(up);
+
+	up->lsr_saved_flags = orig_lsr;
+	spin_unlock_irqrestore(&up->port.lock, flags);
+	return 1;
+}
diff --git a/drivers/tty/serial/8250_pci.c b/drivers/tty/serial/8250_pci.c
index 825937a5f210..da2b0b0a183f 100644
--- a/drivers/tty/serial/8250_pci.c
+++ b/drivers/tty/serial/8250_pci.c
@@ -1092,6 +1092,14 @@ static int skip_tx_en_setup(struct serial_private *priv,
 	return pci_default_setup(priv, board, port, idx);
 }
 
+static int kt_serial_setup(struct serial_private *priv,
+			   const struct pciserial_board *board,
+			   struct uart_port *port, int idx)
+{
+	port->flags |= UPF_IIR_ONCE;
+	return skip_tx_en_setup(priv, board, port, idx);
+}
+
 static int pci_eg20t_init(struct pci_dev *dev)
 {
 #if defined(CONFIG_SERIAL_PCH_UART) || defined(CONFIG_SERIAL_PCH_UART_MODULE)
@@ -1110,7 +1118,18 @@ pci_xr17c154_setup(struct serial_private *priv,
 	return pci_default_setup(priv, board, port, idx);
 }
 
-/* This should be in linux/pci_ids.h */
+static int try_enable_msi(struct pci_dev *dev)
+{
+	/* use msi if available, but fallback to legacy otherwise */
+	pci_enable_msi(dev);
+	return 0;
+}
+
+static void disable_msi(struct pci_dev *dev)
+{
+	pci_disable_msi(dev);
+}
+
 #define PCI_VENDOR_ID_SBSMODULARIO	0x124B
 #define PCI_SUBVENDOR_ID_SBSMODULARIO	0x124B
 #define PCI_DEVICE_ID_OCTPRO		0x0001
@@ -1133,9 +1152,14 @@ pci_xr17c154_setup(struct serial_private *priv,
 #define PCI_DEVICE_ID_TITAN_800E	0xA014
 #define PCI_DEVICE_ID_TITAN_200EI	0xA016
 #define PCI_DEVICE_ID_TITAN_200EISI	0xA017
+#define PCI_DEVICE_ID_TITAN_400V3	0xA310
+#define PCI_DEVICE_ID_TITAN_410V3	0xA312
+#define PCI_DEVICE_ID_TITAN_800V3	0xA314
+#define PCI_DEVICE_ID_TITAN_800V3B	0xA315
 #define PCI_DEVICE_ID_OXSEMI_16PCI958	0x9538
 #define PCIE_DEVICE_ID_NEO_2_OX_IBM	0x00F6
 #define PCI_DEVICE_ID_PLX_CRONYX_OMEGA	0xc001
+#define PCI_DEVICE_ID_INTEL_PATSBURG_KT 0x1d3d
 
 /* Unknown vendors/cards - this should not be in linux/pci_ids.h */
 #define PCI_SUBDEVICE_ID_UNKNOWN_0x1584	0x1584
@@ -1220,6 +1244,15 @@ static struct pci_serial_quirk pci_serial_quirks[] __refdata = {
 		.subdevice	= PCI_ANY_ID,
 		.setup		= ce4100_serial_setup,
 	},
+	{
+		.vendor		= PCI_VENDOR_ID_INTEL,
+		.device		= PCI_DEVICE_ID_INTEL_PATSBURG_KT,
+		.subvendor	= PCI_ANY_ID,
+		.subdevice	= PCI_ANY_ID,
+		.init		= try_enable_msi,
+		.setup		= kt_serial_setup,
+		.exit		= disable_msi,
+	},
 	/*
 	 * ITE
 	 */
@@ -3414,6 +3447,18 @@ static struct pci_device_id serial_pci_tbl[] = {
 	{	PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_200EISI,
 		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
 		pbn_oxsemi_2_4000000 },
+	{	PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_400V3,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_4_921600 },
+	{	PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_410V3,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_4_921600 },
+	{	PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_800V3,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_4_921600 },
+	{	PCI_VENDOR_ID_TITAN, PCI_DEVICE_ID_TITAN_800V3B,
+		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
+		pbn_b0_4_921600 },
 
 	{	PCI_VENDOR_ID_SIIG, PCI_DEVICE_ID_SIIG_1S_10x_550,
 		PCI_ANY_ID, PCI_ANY_ID, 0, 0,
diff --git a/drivers/tty/serial/Kconfig b/drivers/tty/serial/Kconfig
index 95b21a619900..f32a2ea70100 100644
--- a/drivers/tty/serial/Kconfig
+++ b/drivers/tty/serial/Kconfig
@@ -97,6 +97,11 @@ config SERIAL_8250_PNP
 	  This builds standard PNP serial support. You may be able to
 	  disable this feature if you only need legacy serial support.
 
+config SERIAL_8250_FSL
+	bool
+	depends on SERIAL_8250_CONSOLE && PPC_UDBG_16550
+	default PPC
+
 config SERIAL_8250_HP300
 	tristate
 	depends on SERIAL_8250 && HP300
@@ -457,7 +462,7 @@ config SERIAL_SAMSUNG
 config SERIAL_SAMSUNG_UARTS_4
 	bool
 	depends on ARM && PLAT_SAMSUNG
-	default y if CPU_S3C2443
+	default y if !(CPU_S3C2410 || SERIAL_S3C2412 || CPU_S3C2440 || CPU_S3C2442)
 	help
 	  Internal node for the common case of 4 Samsung compatible UARTs
 
@@ -465,7 +470,7 @@ config SERIAL_SAMSUNG_UARTS
 	int
 	depends on ARM && PLAT_SAMSUNG
 	default 6 if ARCH_S5P6450
-	default 4 if SERIAL_SAMSUNG_UARTS_4
+	default 4 if SERIAL_SAMSUNG_UARTS_4 || CPU_S3C2416
 	default 3
 	help
 	  Select the number of available UART ports for the Samsung S3C
@@ -495,46 +500,27 @@ config SERIAL_SAMSUNG_CONSOLE
 	  your boot loader about how to pass options to the kernel at
 	  boot time.)
 
-config SERIAL_S3C2410
-	tristate "Samsung S3C2410 Serial port support"
-	depends on SERIAL_SAMSUNG && CPU_S3C2410
-	default y if CPU_S3C2410
-	help
-	  Serial port support for the Samsung S3C2410 SoC
-
-config SERIAL_S3C2412
-	tristate "Samsung S3C2412/S3C2413 Serial port support"
-	depends on SERIAL_SAMSUNG && CPU_S3C2412
-	default y if CPU_S3C2412
-	help
-	  Serial port support for the Samsung S3C2412 and S3C2413 SoC
-
-config SERIAL_S3C2440
-	tristate "Samsung S3C2440/S3C2442/S3C2416 Serial port support"
-	depends on SERIAL_SAMSUNG && (CPU_S3C2440 || CPU_S3C2442 || CPU_S3C2416)
-	default y if CPU_S3C2440
-	default y if CPU_S3C2442
-	select SERIAL_SAMSUNG_UARTS_4 if CPU_S3C2416
-	help
-	  Serial port support for the Samsung S3C2440, S3C2416 and S3C2442 SoC
-
-config SERIAL_S3C6400
-	tristate "Samsung S3C6400/S3C6410/S5P6440/S5P6450/S5PC100 Serial port support"
-	depends on SERIAL_SAMSUNG && (CPU_S3C6400 || CPU_S3C6410 || CPU_S5P6440 || CPU_S5P6450 || CPU_S5PC100)
-	select SERIAL_SAMSUNG_UARTS_4
-	default y
-	help
-	  Serial port support for the Samsung S3C6400, S3C6410, S5P6440, S5P6450
-	  and S5PC100 SoCs
-
-config SERIAL_S5PV210
-	tristate "Samsung S5PV210 Serial port support"
-	depends on SERIAL_SAMSUNG && (CPU_S5PV210 || CPU_EXYNOS4210 || SOC_EXYNOS4212)
-	select SERIAL_SAMSUNG_UARTS_4 if (CPU_S5PV210 || CPU_EXYNOS4210 || SOC_EXYNOS4212)
-	default y
-	help
-	  Serial port support for Samsung's S5P Family of SoC's
-
+config SERIAL_SIRFSOC
+        tristate "SiRF SoC Platform Serial port support"
+        depends on ARM && ARCH_PRIMA2
+        select SERIAL_CORE
+        help
+          Support for the on-chip UART on the CSR SiRFprimaII series,
+          providing /dev/ttySiRF0, 1 and 2 (note, some machines may not
+          provide all of these ports, depending on how the serial port
+          pins are configured).
+
+config SERIAL_SIRFSOC_CONSOLE
+        bool "Support for console on SiRF SoC serial port"
+        depends on SERIAL_SIRFSOC=y
+        select SERIAL_CORE_CONSOLE
+        help
+          Even if you say Y here, the currently visible virtual console
+          (/dev/tty0) will still be used as the system console by default, but
+          you can alter that using a kernel command line option such as
+          "console=ttySiRFx". (Try "man bootparam" or see the documentation of
+          your boot loader about how to pass options to the kernel at
+          boot time.)
 
 config SERIAL_MAX3100
 	tristate "MAX3100 support"
@@ -1324,7 +1310,7 @@ config SERIAL_OF_PLATFORM
 
 config SERIAL_OMAP
 	tristate "OMAP serial port support"
-	depends on ARCH_OMAP2 || ARCH_OMAP3 || ARCH_OMAP4
+	depends on ARCH_OMAP2PLUS
 	select SERIAL_CORE
 	help
 	  If you have a machine based on an Texas Instruments OMAP CPU you
@@ -1575,6 +1561,15 @@ config SERIAL_PCH_UART
 	  ML7213/ML7223/ML7831 is companion chip for Intel Atom E6xx series.
 	  ML7213/ML7223/ML7831 is completely compatible for Intel EG20T PCH.
 
+config SERIAL_PCH_UART_CONSOLE
+	bool "Support for console on Intel EG20T PCH UART/OKI SEMICONDUCTOR ML7213 IOH"
+	depends on SERIAL_PCH_UART=y
+	select SERIAL_CORE_CONSOLE
+	help
+	  Say Y here if you wish to use the PCH UART as the system console
+	  (the system  console is the device which receives all kernel messages and
+	  warnings and which allows logins in single user mode).
+
 config SERIAL_MSM_SMD
 	bool "Enable tty device interface for some SMD ports"
 	default n
diff --git a/drivers/tty/serial/Makefile b/drivers/tty/serial/Makefile
index e10cf5b54b6d..07e0494c6830 100644
--- a/drivers/tty/serial/Makefile
+++ b/drivers/tty/serial/Makefile
@@ -28,6 +28,7 @@ obj-$(CONFIG_SERIAL_8250_BOCA) += 8250_boca.o
 obj-$(CONFIG_SERIAL_8250_EXAR_ST16C554) += 8250_exar_st16c554.o
 obj-$(CONFIG_SERIAL_8250_HUB6) += 8250_hub6.o
 obj-$(CONFIG_SERIAL_8250_MCA) += 8250_mca.o
+obj-$(CONFIG_SERIAL_8250_FSL) += 8250_fsl.o
 obj-$(CONFIG_SERIAL_8250_DW) += 8250_dw.o
 obj-$(CONFIG_SERIAL_AMBA_PL010) += amba-pl010.o
 obj-$(CONFIG_SERIAL_AMBA_PL011) += amba-pl011.o
@@ -39,11 +40,6 @@ obj-$(CONFIG_SERIAL_BCM63XX) += bcm63xx_uart.o
 obj-$(CONFIG_SERIAL_BFIN) += bfin_uart.o
 obj-$(CONFIG_SERIAL_BFIN_SPORT) += bfin_sport_uart.o
 obj-$(CONFIG_SERIAL_SAMSUNG) += samsung.o
-obj-$(CONFIG_SERIAL_S3C2410) += s3c2410.o
-obj-$(CONFIG_SERIAL_S3C2412) += s3c2412.o
-obj-$(CONFIG_SERIAL_S3C2440) += s3c2440.o
-obj-$(CONFIG_SERIAL_S3C6400) += s3c6400.o
-obj-$(CONFIG_SERIAL_S5PV210) += s5pv210.o
 obj-$(CONFIG_SERIAL_MAX3100) += max3100.o
 obj-$(CONFIG_SERIAL_MAX3107) += max3107.o
 obj-$(CONFIG_SERIAL_MAX3107_AAVA) += max3107-aava.o
@@ -94,3 +90,4 @@ obj-$(CONFIG_SERIAL_MSM_SMD)	+= msm_smd_tty.o
 obj-$(CONFIG_SERIAL_MXS_AUART) += mxs-auart.o
 obj-$(CONFIG_SERIAL_LANTIQ)	+= lantiq.o
 obj-$(CONFIG_SERIAL_XILINX_PS_UART) += xilinx_uartps.o
+obj-$(CONFIG_SERIAL_SIRFSOC) += sirfsoc_uart.o
diff --git a/drivers/tty/serial/apbuart.c b/drivers/tty/serial/apbuart.c
index 77554fd68d1f..7162f70d9260 100644
--- a/drivers/tty/serial/apbuart.c
+++ b/drivers/tty/serial/apbuart.c
@@ -577,7 +577,7 @@ static int __devinit apbuart_probe(struct platform_device *op)
 	return 0;
 }
 
-static struct of_device_id __initdata apbuart_match[] = {
+static struct of_device_id apbuart_match[] = {
 	{
 	 .name = "GAISLER_APBUART",
 	 },
@@ -597,7 +597,7 @@ static struct platform_driver grlib_apbuart_of_driver = {
 };
 
 
-static int grlib_apbuart_configure(void)
+static int __init grlib_apbuart_configure(void)
 {
 	struct device_node *np;
 	int line = 0;
diff --git a/drivers/tty/serial/atmel_serial.c b/drivers/tty/serial/atmel_serial.c
index 4c823f341d98..10605ecc99ab 100644
--- a/drivers/tty/serial/atmel_serial.c
+++ b/drivers/tty/serial/atmel_serial.c
@@ -212,8 +212,9 @@ void atmel_config_rs485(struct uart_port *port, struct serial_rs485 *rs485conf)
 {
 	struct atmel_uart_port *atmel_port = to_atmel_uart_port(port);
 	unsigned int mode;
+	unsigned long flags;
 
-	spin_lock(&port->lock);
+	spin_lock_irqsave(&port->lock, flags);
 
 	/* Disable interrupts */
 	UART_PUT_IDR(port, atmel_port->tx_done_mask);
@@ -244,7 +245,7 @@ void atmel_config_rs485(struct uart_port *port, struct serial_rs485 *rs485conf)
 	/* Enable interrupts */
 	UART_PUT_IER(port, atmel_port->tx_done_mask);
 
-	spin_unlock(&port->lock);
+	spin_unlock_irqrestore(&port->lock, flags);
 
 }
 
@@ -1256,12 +1257,7 @@ static void atmel_set_termios(struct uart_port *port, struct ktermios *termios,
 
 static void atmel_set_ldisc(struct uart_port *port, int new)
 {
-	int line = port->line;
-
-	if (line >= port->state->port.tty->driver->num)
-		return;
-
-	if (port->state->port.tty->ldisc->ops->num == N_PPS) {
+	if (new == N_PPS) {
 		port->flags |= UPF_HARDPPS_CD;
 		atmel_enable_ms(port);
 	} else {
diff --git a/drivers/tty/serial/bfin_sport_uart.c b/drivers/tty/serial/bfin_sport_uart.c
index ee101c0d358f..7fbc3a08f10d 100644
--- a/drivers/tty/serial/bfin_sport_uart.c
+++ b/drivers/tty/serial/bfin_sport_uart.c
@@ -299,8 +299,13 @@ static int sport_startup(struct uart_port *port)
 			dev_info(port->dev, "Unable to attach BlackFin UART over SPORT CTS interrupt. So, disable it.\n");
 		}
 	}
-	if (up->rts_pin >= 0)
-		gpio_direction_output(up->rts_pin, 0);
+	if (up->rts_pin >= 0) {
+		if (gpio_request(up->rts_pin, DRV_NAME)) {
+			dev_info(port->dev, "fail to request RTS PIN at GPIO_%d\n", up->rts_pin);
+			up->rts_pin = -1;
+		} else
+			gpio_direction_output(up->rts_pin, 0);
+	}
 #endif
 
 	return 0;
@@ -445,6 +450,8 @@ static void sport_shutdown(struct uart_port *port)
 #ifdef CONFIG_SERIAL_BFIN_SPORT_CTSRTS
 	if (up->cts_pin >= 0)
 		free_irq(gpio_to_irq(up->cts_pin), up);
+	if (up->rts_pin >= 0)
+		gpio_free(up->rts_pin);
 #endif
 }
 
@@ -803,17 +810,16 @@ static int __devinit sport_uart_probe(struct platform_device *pdev)
 		res = platform_get_resource(pdev, IORESOURCE_IO, 0);
 		if (res == NULL)
 			sport->cts_pin = -1;
-		else
+		else {
 			sport->cts_pin = res->start;
+			sport->port.flags |= ASYNC_CTS_FLOW;
+		}
 
 		res = platform_get_resource(pdev, IORESOURCE_IO, 1);
 		if (res == NULL)
 			sport->rts_pin = -1;
 		else
 			sport->rts_pin = res->start;
-
-		if (sport->rts_pin >= 0)
-			gpio_request(sport->rts_pin, DRV_NAME);
 #endif
 	}
 
@@ -853,10 +859,6 @@ static int __devexit sport_uart_remove(struct platform_device *pdev)
 
 	if (sport) {
 		uart_remove_one_port(&sport_uart_reg, &sport->port);
-#ifdef CONFIG_SERIAL_BFIN_CTSRTS
-		if (sport->rts_pin >= 0)
-			gpio_free(sport->rts_pin);
-#endif
 		iounmap(sport->port.membase);
 		peripheral_free_list(
 			(unsigned short *)pdev->dev.platform_data);
diff --git a/drivers/tty/serial/bfin_sport_uart.h b/drivers/tty/serial/bfin_sport_uart.h
index 6d06ce1d5675..e4510ea135ce 100644
--- a/drivers/tty/serial/bfin_sport_uart.h
+++ b/drivers/tty/serial/bfin_sport_uart.h
@@ -45,11 +45,12 @@
 #define SPORT_GET_RX32(sport) \
 ({ \
 	unsigned int __ret; \
+	unsigned long flags; \
 	if (ANOMALY_05000473) \
-		local_irq_disable(); \
+		local_irq_save(flags); \
 	__ret = bfin_read32((sport)->port.membase + OFFSET_RX); \
 	if (ANOMALY_05000473) \
-		local_irq_enable(); \
+		local_irq_restore(flags); \
 	__ret; \
 })
 #define SPORT_GET_RCR1(sport)		bfin_read16(((sport)->port.membase + OFFSET_RCR1))
diff --git a/drivers/tty/serial/bfin_uart.c b/drivers/tty/serial/bfin_uart.c
index 66afb98b77b5..26953bfa6922 100644
--- a/drivers/tty/serial/bfin_uart.c
+++ b/drivers/tty/serial/bfin_uart.c
@@ -116,15 +116,22 @@ static void bfin_serial_set_mctrl(struct uart_port *port, unsigned int mctrl)
 static irqreturn_t bfin_serial_mctrl_cts_int(int irq, void *dev_id)
 {
 	struct bfin_serial_port *uart = dev_id;
-	unsigned int status;
-
-	status = bfin_serial_get_mctrl(&uart->port);
-	uart_handle_cts_change(&uart->port, status & TIOCM_CTS);
+	unsigned int status = bfin_serial_get_mctrl(&uart->port);
 #ifdef CONFIG_SERIAL_BFIN_HARD_CTSRTS
-	uart->scts = 1;
+	struct tty_struct *tty = uart->port.state->port.tty;
+
 	UART_CLEAR_SCTS(uart);
-	UART_CLEAR_IER(uart, EDSSI);
+	if (tty->hw_stopped) {
+		if (status) {
+			tty->hw_stopped = 0;
+			uart_write_wakeup(&uart->port);
+		}
+	} else {
+		if (!status)
+			tty->hw_stopped = 1;
+	}
 #endif
+	uart_handle_cts_change(&uart->port, status & TIOCM_CTS);
 
 	return IRQ_HANDLED;
 }
@@ -175,13 +182,6 @@ static void bfin_serial_start_tx(struct uart_port *port)
 	struct bfin_serial_port *uart = (struct bfin_serial_port *)port;
 	struct tty_struct *tty = uart->port.state->port.tty;
 
-#ifdef CONFIG_SERIAL_BFIN_HARD_CTSRTS
-	if (uart->scts && !(bfin_serial_get_mctrl(&uart->port) & TIOCM_CTS)) {
-		uart->scts = 0;
-		uart_handle_cts_change(&uart->port, uart->scts);
-	}
-#endif
-
 	/*
 	 * To avoid losting RX interrupt, we reset IR function
 	 * before sending data.
@@ -380,12 +380,6 @@ static irqreturn_t bfin_serial_tx_int(int irq, void *dev_id)
 {
 	struct bfin_serial_port *uart = dev_id;
 
-#ifdef CONFIG_SERIAL_BFIN_HARD_CTSRTS
-	if (uart->scts && !(bfin_serial_get_mctrl(&uart->port) & TIOCM_CTS)) {
-		uart->scts = 0;
-		uart_handle_cts_change(&uart->port, uart->scts);
-	}
-#endif
 	spin_lock(&uart->port.lock);
 	if (UART_GET_LSR(uart) & THRE)
 		bfin_serial_tx_chars(uart);
@@ -531,13 +525,6 @@ static irqreturn_t bfin_serial_dma_tx_int(int irq, void *dev_id)
 	struct bfin_serial_port *uart = dev_id;
 	struct circ_buf *xmit = &uart->port.state->xmit;
 
-#ifdef CONFIG_SERIAL_BFIN_HARD_CTSRTS
-	if (uart->scts && !(bfin_serial_get_mctrl(&uart->port)&TIOCM_CTS)) {
-		uart->scts = 0;
-		uart_handle_cts_change(&uart->port, uart->scts);
-	}
-#endif
-
 	spin_lock(&uart->port.lock);
 	if (!(get_dma_curr_irqstat(uart->tx_dma_channel)&DMA_RUN)) {
 		disable_dma(uart->tx_dma_channel);
@@ -739,20 +726,26 @@ static int bfin_serial_startup(struct uart_port *port)
 			pr_info("Unable to attach BlackFin UART CTS interrupt. So, disable it.\n");
 		}
 	}
-	if (uart->rts_pin >= 0)
-		gpio_direction_output(uart->rts_pin, 0);
+	if (uart->rts_pin >= 0) {
+		if (gpio_request(uart->rts_pin, DRIVER_NAME)) {
+			pr_info("fail to request RTS PIN at GPIO_%d\n", uart->rts_pin);
+			uart->rts_pin = -1;
+		} else
+			gpio_direction_output(uart->rts_pin, 0);
+	}
 #endif
 #ifdef CONFIG_SERIAL_BFIN_HARD_CTSRTS
-	if (uart->cts_pin >= 0 && request_irq(uart->status_irq,
-		bfin_serial_mctrl_cts_int,
-		0, "BFIN_UART_MODEM_STATUS", uart)) {
-		uart->cts_pin = -1;
-		pr_info("Unable to attach BlackFin UART Modem Status interrupt.\n");
-	}
+	if (uart->cts_pin >= 0) {
+		if (request_irq(uart->status_irq, bfin_serial_mctrl_cts_int,
+			IRQF_DISABLED, "BFIN_UART_MODEM_STATUS", uart)) {
+			uart->cts_pin = -1;
+			dev_info(port->dev, "Unable to attach BlackFin UART Modem Status interrupt.\n");
+		}
 
-	/* CTS RTS PINs are negative assertive. */
-	UART_PUT_MCR(uart, ACTS);
-	UART_SET_IER(uart, EDSSI);
+		/* CTS RTS PINs are negative assertive. */
+		UART_PUT_MCR(uart, ACTS);
+		UART_SET_IER(uart, EDSSI);
+	}
 #endif
 
 	UART_SET_IER(uart, ERBFI);
@@ -792,6 +785,8 @@ static void bfin_serial_shutdown(struct uart_port *port)
 #ifdef CONFIG_SERIAL_BFIN_CTSRTS
 	if (uart->cts_pin >= 0)
 		free_irq(gpio_to_irq(uart->cts_pin), uart);
+	if (uart->rts_pin >= 0)
+		gpio_free(uart->rts_pin);
 #endif
 #ifdef CONFIG_SERIAL_BFIN_HARD_CTSRTS
 	if (uart->cts_pin >= 0)
@@ -1370,18 +1365,18 @@ static int bfin_serial_probe(struct platform_device *pdev)
 		res = platform_get_resource(pdev, IORESOURCE_IO, 0);
 		if (res == NULL)
 			uart->cts_pin = -1;
-		else
+		else {
 			uart->cts_pin = res->start;
+#ifdef CONFIG_SERIAL_BFIN_CTSRTS
+			uart->port.flags |= ASYNC_CTS_FLOW;
+#endif
+		}
 
 		res = platform_get_resource(pdev, IORESOURCE_IO, 1);
 		if (res == NULL)
 			uart->rts_pin = -1;
 		else
 			uart->rts_pin = res->start;
-# if defined(CONFIG_SERIAL_BFIN_CTSRTS)
-		if (uart->rts_pin >= 0)
-			gpio_request(uart->rts_pin, DRIVER_NAME);
-# endif
 #endif
 	}
 
@@ -1421,10 +1416,6 @@ static int __devexit bfin_serial_remove(struct platform_device *pdev)
 
 	if (uart) {
 		uart_remove_one_port(&bfin_serial_reg, &uart->port);
-#ifdef CONFIG_SERIAL_BFIN_CTSRTS
-		if (uart->rts_pin >= 0)
-			gpio_free(uart->rts_pin);
-#endif
 		iounmap(uart->port.membase);
 		peripheral_free_list(
 			(unsigned short *)pdev->dev.platform_data);
diff --git a/drivers/tty/serial/ifx6x60.c b/drivers/tty/serial/ifx6x60.c
index 426434e5eb7c..7e925e20cbaa 100644
--- a/drivers/tty/serial/ifx6x60.c
+++ b/drivers/tty/serial/ifx6x60.c
@@ -1334,7 +1334,6 @@ MODULE_DEVICE_TABLE(spi, ifx_id_table);
 static const struct spi_driver ifx_spi_driver = {
 	.driver = {
 		.name = DRVNAME,
-		.bus = &spi_bus_type,
 		.pm = &ifx_spi_pm,
 		.owner = THIS_MODULE},
 	.probe = ifx_spi_spi_probe,
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index 163fc9021f5a..0b7fed746b27 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -102,6 +102,7 @@
 #define  UCR2_STPB       (1<<6)	 /* Stop */
 #define  UCR2_WS         (1<<5)	 /* Word size */
 #define  UCR2_RTSEN      (1<<4)	 /* Request to send interrupt enable */
+#define  UCR2_ATEN       (1<<3)  /* Aging Timer Enable */
 #define  UCR2_TXEN       (1<<2)	 /* Transmitter enabled */
 #define  UCR2_RXEN       (1<<1)	 /* Receiver enabled */
 #define  UCR2_SRST 	 (1<<0)	 /* SW reset */
@@ -207,6 +208,12 @@ struct imx_port {
 	struct imx_uart_data	*devdata;
 };
 
+struct imx_port_ucrs {
+	unsigned int	ucr1;
+	unsigned int	ucr2;
+	unsigned int	ucr3;
+};
+
 #ifdef CONFIG_IRDA
 #define USE_IRDA(sport)	((sport)->use_irda)
 #else
@@ -260,6 +267,27 @@ static inline int is_imx21_uart(struct imx_port *sport)
 }
 
 /*
+ * Save and restore functions for UCR1, UCR2 and UCR3 registers
+ */
+static void imx_port_ucrs_save(struct uart_port *port,
+			       struct imx_port_ucrs *ucr)
+{
+	/* save control registers */
+	ucr->ucr1 = readl(port->membase + UCR1);
+	ucr->ucr2 = readl(port->membase + UCR2);
+	ucr->ucr3 = readl(port->membase + UCR3);
+}
+
+static void imx_port_ucrs_restore(struct uart_port *port,
+				  struct imx_port_ucrs *ucr)
+{
+	/* restore control registers */
+	writel(ucr->ucr1, port->membase + UCR1);
+	writel(ucr->ucr2, port->membase + UCR2);
+	writel(ucr->ucr3, port->membase + UCR3);
+}
+
+/*
  * Handle any change of modem status signal since we were last called.
  */
 static void imx_mctrl_check(struct imx_port *sport)
@@ -566,6 +594,9 @@ static irqreturn_t imx_int(int irq, void *dev_id)
 	if (sts & USR1_RTSD)
 		imx_rtsint(irq, dev_id);
 
+	if (sts & USR1_AWAKE)
+		writel(USR1_AWAKE, sport->port.membase + USR1);
+
 	return IRQ_HANDLED;
 }
 
@@ -901,6 +932,8 @@ imx_set_termios(struct uart_port *port, struct ktermios *termios,
 			ucr2 |= UCR2_PROE;
 	}
 
+	del_timer_sync(&sport->timer);
+
 	/*
 	 * Ask the core to calculate the divisor for us.
 	 */
@@ -931,8 +964,6 @@ imx_set_termios(struct uart_port *port, struct ktermios *termios,
 			sport->port.ignore_status_mask |= URXD_OVRRUN;
 	}
 
-	del_timer_sync(&sport->timer);
-
 	/*
 	 * Update the per-port timeout.
 	 */
@@ -1079,6 +1110,70 @@ imx_verify_port(struct uart_port *port, struct serial_struct *ser)
 	return ret;
 }
 
+#if defined(CONFIG_CONSOLE_POLL)
+static int imx_poll_get_char(struct uart_port *port)
+{
+	struct imx_port_ucrs old_ucr;
+	unsigned int status;
+	unsigned char c;
+
+	/* save control registers */
+	imx_port_ucrs_save(port, &old_ucr);
+
+	/* disable interrupts */
+	writel(UCR1_UARTEN, port->membase + UCR1);
+	writel(old_ucr.ucr2 & ~(UCR2_ATEN | UCR2_RTSEN | UCR2_ESCI),
+	       port->membase + UCR2);
+	writel(old_ucr.ucr3 & ~(UCR3_DCD | UCR3_RI | UCR3_DTREN),
+	       port->membase + UCR3);
+
+	/* poll */
+	do {
+		status = readl(port->membase + USR2);
+	} while (~status & USR2_RDR);
+
+	/* read */
+	c = readl(port->membase + URXD0);
+
+	/* restore control registers */
+	imx_port_ucrs_restore(port, &old_ucr);
+
+	return c;
+}
+
+static void imx_poll_put_char(struct uart_port *port, unsigned char c)
+{
+	struct imx_port_ucrs old_ucr;
+	unsigned int status;
+
+	/* save control registers */
+	imx_port_ucrs_save(port, &old_ucr);
+
+	/* disable interrupts */
+	writel(UCR1_UARTEN, port->membase + UCR1);
+	writel(old_ucr.ucr2 & ~(UCR2_ATEN | UCR2_RTSEN | UCR2_ESCI),
+	       port->membase + UCR2);
+	writel(old_ucr.ucr3 & ~(UCR3_DCD | UCR3_RI | UCR3_DTREN),
+	       port->membase + UCR3);
+
+	/* drain */
+	do {
+		status = readl(port->membase + USR1);
+	} while (~status & USR1_TRDY);
+
+	/* write */
+	writel(c, port->membase + URTX0);
+
+	/* flush */
+	do {
+		status = readl(port->membase + USR2);
+	} while (~status & USR2_TXDC);
+
+	/* restore control registers */
+	imx_port_ucrs_restore(port, &old_ucr);
+}
+#endif
+
 static struct uart_ops imx_pops = {
 	.tx_empty	= imx_tx_empty,
 	.set_mctrl	= imx_set_mctrl,
@@ -1096,6 +1191,10 @@ static struct uart_ops imx_pops = {
 	.request_port	= imx_request_port,
 	.config_port	= imx_config_port,
 	.verify_port	= imx_verify_port,
+#if defined(CONFIG_CONSOLE_POLL)
+	.poll_get_char  = imx_poll_get_char,
+	.poll_put_char  = imx_poll_put_char,
+#endif
 };
 
 static struct imx_port *imx_ports[UART_NR];
@@ -1118,13 +1217,14 @@ static void
 imx_console_write(struct console *co, const char *s, unsigned int count)
 {
 	struct imx_port *sport = imx_ports[co->index];
-	unsigned int old_ucr1, old_ucr2, ucr1;
+	struct imx_port_ucrs old_ucr;
+	unsigned int ucr1;
 
 	/*
-	 *	First, save UCR1/2 and then disable interrupts
+	 *	First, save UCR1/2/3 and then disable interrupts
 	 */
-	ucr1 = old_ucr1 = readl(sport->port.membase + UCR1);
-	old_ucr2 = readl(sport->port.membase + UCR2);
+	imx_port_ucrs_save(&sport->port, &old_ucr);
+	ucr1 = old_ucr.ucr1;
 
 	if (is_imx1_uart(sport))
 		ucr1 |= IMX1_UCR1_UARTCLKEN;
@@ -1133,18 +1233,17 @@ imx_console_write(struct console *co, const char *s, unsigned int count)
 
 	writel(ucr1, sport->port.membase + UCR1);
 
-	writel(old_ucr2 | UCR2_TXEN, sport->port.membase + UCR2);
+	writel(old_ucr.ucr2 | UCR2_TXEN, sport->port.membase + UCR2);
 
 	uart_console_write(&sport->port, s, count, imx_console_putchar);
 
 	/*
 	 *	Finally, wait for transmitter to become empty
-	 *	and restore UCR1/2
+	 *	and restore UCR1/2/3
 	 */
 	while (!(readl(sport->port.membase + USR2) & USR2_TXDC));
 
-	writel(old_ucr1, sport->port.membase + UCR1);
-	writel(old_ucr2, sport->port.membase + UCR2);
+	imx_port_ucrs_restore(&sport->port, &old_ucr);
 }
 
 /*
@@ -1269,6 +1368,12 @@ static struct uart_driver imx_reg = {
 static int serial_imx_suspend(struct platform_device *dev, pm_message_t state)
 {
 	struct imx_port *sport = platform_get_drvdata(dev);
+	unsigned int val;
+
+	/* enable wakeup from i.MX UART */
+	val = readl(sport->port.membase + UCR3);
+	val |= UCR3_AWAKEN;
+	writel(val, sport->port.membase + UCR3);
 
 	if (sport)
 		uart_suspend_port(&imx_reg, &sport->port);
@@ -1279,6 +1384,12 @@ static int serial_imx_suspend(struct platform_device *dev, pm_message_t state)
 static int serial_imx_resume(struct platform_device *dev)
 {
 	struct imx_port *sport = platform_get_drvdata(dev);
+	unsigned int val;
+
+	/* disable wakeup from i.MX UART */
+	val = readl(sport->port.membase + UCR3);
+	val &= ~UCR3_AWAKEN;
+	writel(val, sport->port.membase + UCR3);
 
 	if (sport)
 		uart_resume_port(&imx_reg, &sport->port);
@@ -1287,6 +1398,10 @@ static int serial_imx_resume(struct platform_device *dev)
 }
 
 #ifdef CONFIG_OF
+/*
+ * This function returns 1 iff pdev isn't a device instatiated by dt, 0 iff it
+ * could successfully get all information from dt or a negative errno.
+ */
 static int serial_imx_probe_dt(struct imx_port *sport,
 		struct platform_device *pdev)
 {
@@ -1296,12 +1411,13 @@ static int serial_imx_probe_dt(struct imx_port *sport,
 	int ret;
 
 	if (!np)
-		return -ENODEV;
+		/* no device tree device */
+		return 1;
 
 	ret = of_alias_get_id(np, "serial");
 	if (ret < 0) {
 		dev_err(&pdev->dev, "failed to get alias id, errno %d\n", ret);
-		return -ENODEV;
+		return ret;
 	}
 	sport->port.line = ret;
 
@@ -1319,7 +1435,7 @@ static int serial_imx_probe_dt(struct imx_port *sport,
 static inline int serial_imx_probe_dt(struct imx_port *sport,
 		struct platform_device *pdev)
 {
-	return -ENODEV;
+	return 1;
 }
 #endif
 
@@ -1354,8 +1470,10 @@ static int serial_imx_probe(struct platform_device *pdev)
 		return -ENOMEM;
 
 	ret = serial_imx_probe_dt(sport, pdev);
-	if (ret == -ENODEV)
+	if (ret > 0)
 		serial_imx_probe_pdata(sport, pdev);
+	else if (ret < 0)
+		goto free;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!res) {
@@ -1476,7 +1594,7 @@ static int __init imx_serial_init(void)
 	if (ret != 0)
 		uart_unregister_driver(&imx_reg);
 
-	return 0;
+	return ret;
 }
 
 static void __exit imx_serial_exit(void)
diff --git a/drivers/tty/serial/m32r_sio.c b/drivers/tty/serial/m32r_sio.c
index 08018934e013..94a6792bf97b 100644
--- a/drivers/tty/serial/m32r_sio.c
+++ b/drivers/tty/serial/m32r_sio.c
@@ -1000,11 +1000,8 @@ static void __init m32r_sio_register_ports(struct uart_driver *drv)
 		init_timer(&up->timer);
 		up->timer.function = m32r_sio_timeout;
 
-		/*
-		 * ALPHA_KLUDGE_MCR needs to be killed.
-		 */
-		up->mcr_mask = ~ALPHA_KLUDGE_MCR;
-		up->mcr_force = ALPHA_KLUDGE_MCR;
+		up->mcr_mask = ~0;
+		up->mcr_force = 0;
 
 		uart_add_one_port(drv, &up->port);
 	}
diff --git a/drivers/tty/serial/max3100.c b/drivers/tty/serial/max3100.c
index 8a6cc8c30b5a..b4902b99cfd2 100644
--- a/drivers/tty/serial/max3100.c
+++ b/drivers/tty/serial/max3100.c
@@ -901,7 +901,6 @@ static int max3100_resume(struct spi_device *spi)
 static struct spi_driver max3100_driver = {
 	.driver = {
 		.name		= "max3100",
-		.bus		= &spi_bus_type,
 		.owner		= THIS_MODULE,
 	},
 
diff --git a/drivers/tty/serial/max3107-aava.c b/drivers/tty/serial/max3107-aava.c
index 90c40f22ec70..aae772a71de6 100644
--- a/drivers/tty/serial/max3107-aava.c
+++ b/drivers/tty/serial/max3107-aava.c
@@ -315,7 +315,6 @@ static int __devinit max3107_probe_aava(struct spi_device *spi)
 static struct spi_driver max3107_driver = {
 	.driver = {
 		.name		= "aava-max3107",
-		.bus		= &spi_bus_type,
 		.owner		= THIS_MODULE,
 	},
 	.probe		= max3107_probe_aava,
diff --git a/drivers/tty/serial/max3107.c b/drivers/tty/serial/max3107.c
index 7827000db4f5..17c7ba805d98 100644
--- a/drivers/tty/serial/max3107.c
+++ b/drivers/tty/serial/max3107.c
@@ -1181,7 +1181,6 @@ static int max3107_probe_generic(struct spi_device *spi)
 static struct spi_driver max3107_driver = {
 	.driver = {
 		.name		= "max3107",
-		.bus		= &spi_bus_type,
 		.owner		= THIS_MODULE,
 	},
 	.probe		= max3107_probe_generic,
diff --git a/drivers/tty/serial/mfd.c b/drivers/tty/serial/mfd.c
index e272d3919c67..a9234ba8f8d5 100644
--- a/drivers/tty/serial/mfd.c
+++ b/drivers/tty/serial/mfd.c
@@ -1154,7 +1154,6 @@ serial_hsu_console_setup(struct console *co, char *options)
 	int bits = 8;
 	int parity = 'n';
 	int flow = 'n';
-	int ret;
 
 	if (co->index == -1 || co->index >= serial_hsu_reg.nr)
 		co->index = 0;
@@ -1165,9 +1164,7 @@ serial_hsu_console_setup(struct console *co, char *options)
 	if (options)
 		uart_parse_options(options, &baud, &parity, &bits, &flow);
 
-	ret = uart_set_options(&up->port, co, baud, parity, bits, flow);
-
-	return ret;
+	return uart_set_options(&up->port, co, baud, parity, bits, flow);
 }
 
 static struct console serial_hsu_console = {
@@ -1176,9 +1173,13 @@ static struct console serial_hsu_console = {
 	.device		= uart_console_device,
 	.setup		= serial_hsu_console_setup,
 	.flags		= CON_PRINTBUFFER,
-	.index		= 2,
+	.index		= -1,
 	.data		= &serial_hsu_reg,
 };
+
+#define SERIAL_HSU_CONSOLE	(&serial_hsu_console)
+#else
+#define SERIAL_HSU_CONSOLE	NULL
 #endif
 
 struct uart_ops serial_hsu_pops = {
@@ -1208,6 +1209,7 @@ static struct uart_driver serial_hsu_reg = {
 	.major		= TTY_MAJOR,
 	.minor		= 128,
 	.nr		= 3,
+	.cons		= SERIAL_HSU_CONSOLE,
 };
 
 #ifdef CONFIG_PM
@@ -1342,12 +1344,6 @@ static int serial_hsu_probe(struct pci_dev *pdev,
 		}
 		uart_add_one_port(&serial_hsu_reg, &uport->port);
 
-#ifdef CONFIG_SERIAL_MFD_HSU_CONSOLE
-		if (index == 2) {
-			register_console(&serial_hsu_console);
-			uport->port.cons = &serial_hsu_console;
-		}
-#endif
 		pci_set_drvdata(pdev, uport);
 	}
 
diff --git a/drivers/tty/serial/mrst_max3110.c b/drivers/tty/serial/mrst_max3110.c
index 4c309e869903..df2a2240a3ae 100644
--- a/drivers/tty/serial/mrst_max3110.c
+++ b/drivers/tty/serial/mrst_max3110.c
@@ -876,7 +876,6 @@ static int __devexit serial_m3110_remove(struct spi_device *dev)
 static struct spi_driver uart_max3110_driver = {
 	.driver = {
 			.name	= "spi_max3111",
-			.bus	= &spi_bus_type,
 			.owner	= THIS_MODULE,
 	},
 	.probe		= serial_m3110_probe,
diff --git a/drivers/tty/serial/msm_serial_hs.c b/drivers/tty/serial/msm_serial_hs.c
index 60c6eb850265..5e85e1e14c44 100644
--- a/drivers/tty/serial/msm_serial_hs.c
+++ b/drivers/tty/serial/msm_serial_hs.c
@@ -422,9 +422,9 @@ static int __devexit msm_hs_remove(struct platform_device *pdev)
 		      msm_uport->rx.rbuffer);
 	dma_pool_destroy(msm_uport->rx.pool);
 
-	dma_unmap_single(dev, msm_uport->rx.cmdptr_dmaaddr, sizeof(u32 *),
+	dma_unmap_single(dev, msm_uport->rx.cmdptr_dmaaddr, sizeof(u32),
 			 DMA_TO_DEVICE);
-	dma_unmap_single(dev, msm_uport->tx.mapped_cmd_ptr_ptr, sizeof(u32 *),
+	dma_unmap_single(dev, msm_uport->tx.mapped_cmd_ptr_ptr, sizeof(u32),
 			 DMA_TO_DEVICE);
 	dma_unmap_single(dev, msm_uport->tx.mapped_cmd_ptr, sizeof(dmov_box),
 			 DMA_TO_DEVICE);
@@ -812,7 +812,7 @@ static void msm_hs_submit_tx_locked(struct uart_port *uport)
 	*tx->command_ptr_ptr = CMD_PTR_LP | DMOV_CMD_ADDR(tx->mapped_cmd_ptr);
 
 	dma_sync_single_for_device(uport->dev, tx->mapped_cmd_ptr_ptr,
-				   sizeof(u32 *), DMA_TO_DEVICE);
+				   sizeof(u32), DMA_TO_DEVICE);
 
 	/* Save tx_count to use in Callback */
 	tx->tx_count = tx_count;
@@ -1087,12 +1087,10 @@ static void msm_hs_config_port(struct uart_port *uport, int cfg_flags)
 }
 
 /*  Handle CTS changes (Called from interrupt handler) */
-static void msm_hs_handle_delta_cts(struct uart_port *uport)
+static void msm_hs_handle_delta_cts_locked(struct uart_port *uport)
 {
-	unsigned long flags;
 	struct msm_hs_port *msm_uport = UARTDM_TO_MSM(uport);
 
-	spin_lock_irqsave(&uport->lock, flags);
 	clk_enable(msm_uport->clk);
 
 	/* clear interrupt */
@@ -1100,7 +1098,6 @@ static void msm_hs_handle_delta_cts(struct uart_port *uport)
 	uport->icount.cts++;
 
 	clk_disable(msm_uport->clk);
-	spin_unlock_irqrestore(&uport->lock, flags);
 
 	/* clear the IOCTL TIOCMIWAIT if called */
 	wake_up_interruptible(&uport->state->port.delta_msr_wait);
@@ -1248,7 +1245,7 @@ static irqreturn_t msm_hs_isr(int irq, void *dev)
 
 	/* Change in CTS interrupt */
 	if (isr_status & UARTDM_ISR_DELTA_CTS_BMSK)
-		msm_hs_handle_delta_cts(uport);
+		msm_hs_handle_delta_cts_locked(uport);
 
 	spin_unlock_irqrestore(&uport->lock, flags);
 
@@ -1537,7 +1534,7 @@ static int __devinit uartdm_init_port(struct uart_port *uport)
 	if (!tx->command_ptr)
 		return -ENOMEM;
 
-	tx->command_ptr_ptr = kmalloc(sizeof(u32 *), GFP_KERNEL | __GFP_DMA);
+	tx->command_ptr_ptr = kmalloc(sizeof(u32), GFP_KERNEL | __GFP_DMA);
 	if (!tx->command_ptr_ptr) {
 		ret = -ENOMEM;
 		goto err_tx_command_ptr_ptr;
@@ -1547,7 +1544,7 @@ static int __devinit uartdm_init_port(struct uart_port *uport)
 					    sizeof(dmov_box), DMA_TO_DEVICE);
 	tx->mapped_cmd_ptr_ptr = dma_map_single(uport->dev,
 						tx->command_ptr_ptr,
-						sizeof(u32 *), DMA_TO_DEVICE);
+						sizeof(u32), DMA_TO_DEVICE);
 	tx->xfer.cmdptr = DMOV_CMD_ADDR(tx->mapped_cmd_ptr_ptr);
 
 	init_waitqueue_head(&rx->wait);
@@ -1575,7 +1572,7 @@ static int __devinit uartdm_init_port(struct uart_port *uport)
 		goto err_rx_command_ptr;
 	}
 
-	rx->command_ptr_ptr = kmalloc(sizeof(u32 *), GFP_KERNEL | __GFP_DMA);
+	rx->command_ptr_ptr = kmalloc(sizeof(u32), GFP_KERNEL | __GFP_DMA);
 	if (!rx->command_ptr_ptr) {
 		pr_err("%s(): cannot allocate rx->command_ptr_ptr", __func__);
 		ret = -ENOMEM;
@@ -1593,7 +1590,7 @@ static int __devinit uartdm_init_port(struct uart_port *uport)
 	*rx->command_ptr_ptr = CMD_PTR_LP | DMOV_CMD_ADDR(rx->mapped_cmd_ptr);
 
 	rx->cmdptr_dmaaddr = dma_map_single(uport->dev, rx->command_ptr_ptr,
-					    sizeof(u32 *), DMA_TO_DEVICE);
+					    sizeof(u32), DMA_TO_DEVICE);
 	rx->xfer.cmdptr = DMOV_CMD_ADDR(rx->cmdptr_dmaaddr);
 
 	INIT_WORK(&rx->tty_work, msm_hs_tty_flip_buffer_work);
@@ -1609,7 +1606,7 @@ err_dma_pool_alloc:
 	dma_pool_destroy(msm_uport->rx.pool);
 err_dma_pool_create:
 	dma_unmap_single(uport->dev, msm_uport->tx.mapped_cmd_ptr_ptr,
-				sizeof(u32 *), DMA_TO_DEVICE);
+				sizeof(u32), DMA_TO_DEVICE);
 	dma_unmap_single(uport->dev, msm_uport->tx.mapped_cmd_ptr,
 				sizeof(dmov_box), DMA_TO_DEVICE);
 	kfree(msm_uport->tx.command_ptr_ptr);
diff --git a/drivers/tty/serial/mxs-auart.c b/drivers/tty/serial/mxs-auart.c
index 7e02c9c344fe..55fd362b9879 100644
--- a/drivers/tty/serial/mxs-auart.c
+++ b/drivers/tty/serial/mxs-auart.c
@@ -145,11 +145,12 @@ static inline void mxs_auart_tx_chars(struct mxs_auart_port *s)
 			writel(xmit->buf[xmit->tail],
 				     s->port.membase + AUART_DATA);
 			xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
-			if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
-				uart_write_wakeup(&s->port);
 		} else
 			break;
 	}
+	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
+		uart_write_wakeup(&s->port);
+
 	if (uart_circ_empty(&(s->port.state->xmit)))
 		writel(AUART_INTR_TXIEN,
 			     s->port.membase + AUART_INTR_CLR);
@@ -424,7 +425,7 @@ static int mxs_auart_startup(struct uart_port *u)
 {
 	struct mxs_auart_port *s = to_auart_port(u);
 
-	clk_enable(s->clk);
+	clk_prepare_enable(s->clk);
 
 	writel(AUART_CTRL0_CLKGATE, u->membase + AUART_CTRL0_CLR);
 
@@ -453,7 +454,7 @@ static void mxs_auart_shutdown(struct uart_port *u)
 	writel(AUART_INTR_RXIEN | AUART_INTR_RTIEN | AUART_INTR_CTSMIEN,
 			u->membase + AUART_INTR_CLR);
 
-	clk_disable(s->clk);
+	clk_disable_unprepare(s->clk);
 }
 
 static unsigned int mxs_auart_tx_empty(struct uart_port *u)
@@ -634,7 +635,7 @@ auart_console_setup(struct console *co, char *options)
 	if (!s)
 		return -ENODEV;
 
-	clk_enable(s->clk);
+	clk_prepare_enable(s->clk);
 
 	if (options)
 		uart_parse_options(options, &baud, &parity, &bits, &flow);
@@ -643,7 +644,7 @@ auart_console_setup(struct console *co, char *options)
 
 	ret = uart_set_options(&s->port, co, baud, parity, bits, flow);
 
-	clk_disable(s->clk);
+	clk_disable_unprepare(s->clk);
 
 	return ret;
 }
diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
index 5e713d3ef1f4..d192dcbb82f5 100644
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -37,17 +37,24 @@
 #include <linux/clk.h>
 #include <linux/serial_core.h>
 #include <linux/irq.h>
+#include <linux/pm_runtime.h>
+#include <linux/of.h>
 
 #include <plat/dma.h>
 #include <plat/dmtimer.h>
 #include <plat/omap-serial.h>
 
+#define DEFAULT_CLK_SPEED 48000000 /* 48Mhz*/
+
 static struct uart_omap_port *ui[OMAP_MAX_HSUART_PORTS];
 
 /* Forward declaration of functions */
 static void uart_tx_dma_callback(int lch, u16 ch_status, void *data);
-static void serial_omap_rx_timeout(unsigned long uart_no);
+static void serial_omap_rxdma_poll(unsigned long uart_no);
 static int serial_omap_start_rxdma(struct uart_omap_port *up);
+static void serial_omap_mdr1_errataset(struct uart_omap_port *up, u8 mdr1);
+
+static struct workqueue_struct *serial_omap_uart_wq;
 
 static inline unsigned int serial_in(struct uart_omap_port *up, int offset)
 {
@@ -102,6 +109,8 @@ static void serial_omap_stop_rxdma(struct uart_omap_port *up)
 		omap_free_dma(up->uart_dma.rx_dma_channel);
 		up->uart_dma.rx_dma_channel = OMAP_UART_DMA_CH_FREE;
 		up->uart_dma.rx_dma_used = false;
+		pm_runtime_mark_last_busy(&up->pdev->dev);
+		pm_runtime_put_autosuspend(&up->pdev->dev);
 	}
 }
 
@@ -109,9 +118,12 @@ static void serial_omap_enable_ms(struct uart_port *port)
 {
 	struct uart_omap_port *up = (struct uart_omap_port *)port;
 
-	dev_dbg(up->port.dev, "serial_omap_enable_ms+%d\n", up->pdev->id);
+	dev_dbg(up->port.dev, "serial_omap_enable_ms+%d\n", up->port.line);
+
+	pm_runtime_get_sync(&up->pdev->dev);
 	up->ier |= UART_IER_MSI;
 	serial_out(up, UART_IER, up->ier);
+	pm_runtime_put(&up->pdev->dev);
 }
 
 static void serial_omap_stop_tx(struct uart_port *port)
@@ -129,30 +141,40 @@ static void serial_omap_stop_tx(struct uart_port *port)
 		omap_stop_dma(up->uart_dma.tx_dma_channel);
 		omap_free_dma(up->uart_dma.tx_dma_channel);
 		up->uart_dma.tx_dma_channel = OMAP_UART_DMA_CH_FREE;
+		pm_runtime_mark_last_busy(&up->pdev->dev);
+		pm_runtime_put_autosuspend(&up->pdev->dev);
 	}
 
+	pm_runtime_get_sync(&up->pdev->dev);
 	if (up->ier & UART_IER_THRI) {
 		up->ier &= ~UART_IER_THRI;
 		serial_out(up, UART_IER, up->ier);
 	}
+
+	pm_runtime_mark_last_busy(&up->pdev->dev);
+	pm_runtime_put_autosuspend(&up->pdev->dev);
 }
 
 static void serial_omap_stop_rx(struct uart_port *port)
 {
 	struct uart_omap_port *up = (struct uart_omap_port *)port;
 
+	pm_runtime_get_sync(&up->pdev->dev);
 	if (up->use_dma)
 		serial_omap_stop_rxdma(up);
 	up->ier &= ~UART_IER_RLSI;
 	up->port.read_status_mask &= ~UART_LSR_DR;
 	serial_out(up, UART_IER, up->ier);
+	pm_runtime_mark_last_busy(&up->pdev->dev);
+	pm_runtime_put_autosuspend(&up->pdev->dev);
 }
 
-static inline void receive_chars(struct uart_omap_port *up, int *status)
+static inline void receive_chars(struct uart_omap_port *up,
+		unsigned int *status)
 {
 	struct tty_struct *tty = up->port.state->port.tty;
-	unsigned int flag;
-	unsigned char ch, lsr = *status;
+	unsigned int flag, lsr = *status;
+	unsigned char ch = 0;
 	int max_count = 256;
 
 	do {
@@ -262,7 +284,10 @@ static void serial_omap_start_tx(struct uart_port *port)
 	int ret = 0;
 
 	if (!up->use_dma) {
+		pm_runtime_get_sync(&up->pdev->dev);
 		serial_omap_enable_ier_thri(up);
+		pm_runtime_mark_last_busy(&up->pdev->dev);
+		pm_runtime_put_autosuspend(&up->pdev->dev);
 		return;
 	}
 
@@ -272,6 +297,7 @@ static void serial_omap_start_tx(struct uart_port *port)
 	xmit = &up->port.state->xmit;
 
 	if (up->uart_dma.tx_dma_channel == OMAP_UART_DMA_CH_FREE) {
+		pm_runtime_get_sync(&up->pdev->dev);
 		ret = omap_request_dma(up->uart_dma.uart_dma_tx,
 				"UART Tx DMA",
 				(void *)uart_tx_dma_callback, up,
@@ -354,9 +380,13 @@ static inline irqreturn_t serial_omap_irq(int irq, void *dev_id)
 	unsigned int iir, lsr;
 	unsigned long flags;
 
+	pm_runtime_get_sync(&up->pdev->dev);
 	iir = serial_in(up, UART_IIR);
-	if (iir & UART_IIR_NO_INT)
+	if (iir & UART_IIR_NO_INT) {
+		pm_runtime_mark_last_busy(&up->pdev->dev);
+		pm_runtime_put_autosuspend(&up->pdev->dev);
 		return IRQ_NONE;
+	}
 
 	spin_lock_irqsave(&up->port.lock, flags);
 	lsr = serial_in(up, UART_LSR);
@@ -378,6 +408,9 @@ static inline irqreturn_t serial_omap_irq(int irq, void *dev_id)
 		transmit_chars(up);
 
 	spin_unlock_irqrestore(&up->port.lock, flags);
+	pm_runtime_mark_last_busy(&up->pdev->dev);
+	pm_runtime_put_autosuspend(&up->pdev->dev);
+
 	up->port_activity = jiffies;
 	return IRQ_HANDLED;
 }
@@ -388,22 +421,26 @@ static unsigned int serial_omap_tx_empty(struct uart_port *port)
 	unsigned long flags = 0;
 	unsigned int ret = 0;
 
-	dev_dbg(up->port.dev, "serial_omap_tx_empty+%d\n", up->pdev->id);
+	pm_runtime_get_sync(&up->pdev->dev);
+	dev_dbg(up->port.dev, "serial_omap_tx_empty+%d\n", up->port.line);
 	spin_lock_irqsave(&up->port.lock, flags);
 	ret = serial_in(up, UART_LSR) & UART_LSR_TEMT ? TIOCSER_TEMT : 0;
 	spin_unlock_irqrestore(&up->port.lock, flags);
-
+	pm_runtime_put(&up->pdev->dev);
 	return ret;
 }
 
 static unsigned int serial_omap_get_mctrl(struct uart_port *port)
 {
 	struct uart_omap_port *up = (struct uart_omap_port *)port;
-	unsigned char status;
+	unsigned int status;
 	unsigned int ret = 0;
 
+	pm_runtime_get_sync(&up->pdev->dev);
 	status = check_modem_status(up);
-	dev_dbg(up->port.dev, "serial_omap_get_mctrl+%d\n", up->pdev->id);
+	pm_runtime_put(&up->pdev->dev);
+
+	dev_dbg(up->port.dev, "serial_omap_get_mctrl+%d\n", up->port.line);
 
 	if (status & UART_MSR_DCD)
 		ret |= TIOCM_CAR;
@@ -421,7 +458,7 @@ static void serial_omap_set_mctrl(struct uart_port *port, unsigned int mctrl)
 	struct uart_omap_port *up = (struct uart_omap_port *)port;
 	unsigned char mcr = 0;
 
-	dev_dbg(up->port.dev, "serial_omap_set_mctrl+%d\n", up->pdev->id);
+	dev_dbg(up->port.dev, "serial_omap_set_mctrl+%d\n", up->port.line);
 	if (mctrl & TIOCM_RTS)
 		mcr |= UART_MCR_RTS;
 	if (mctrl & TIOCM_DTR)
@@ -433,8 +470,11 @@ static void serial_omap_set_mctrl(struct uart_port *port, unsigned int mctrl)
 	if (mctrl & TIOCM_LOOP)
 		mcr |= UART_MCR_LOOP;
 
-	mcr |= up->mcr;
-	serial_out(up, UART_MCR, mcr);
+	pm_runtime_get_sync(&up->pdev->dev);
+	up->mcr = serial_in(up, UART_MCR);
+	up->mcr |= mcr;
+	serial_out(up, UART_MCR, up->mcr);
+	pm_runtime_put(&up->pdev->dev);
 }
 
 static void serial_omap_break_ctl(struct uart_port *port, int break_state)
@@ -442,7 +482,8 @@ static void serial_omap_break_ctl(struct uart_port *port, int break_state)
 	struct uart_omap_port *up = (struct uart_omap_port *)port;
 	unsigned long flags = 0;
 
-	dev_dbg(up->port.dev, "serial_omap_break_ctl+%d\n", up->pdev->id);
+	dev_dbg(up->port.dev, "serial_omap_break_ctl+%d\n", up->port.line);
+	pm_runtime_get_sync(&up->pdev->dev);
 	spin_lock_irqsave(&up->port.lock, flags);
 	if (break_state == -1)
 		up->lcr |= UART_LCR_SBC;
@@ -450,6 +491,7 @@ static void serial_omap_break_ctl(struct uart_port *port, int break_state)
 		up->lcr &= ~UART_LCR_SBC;
 	serial_out(up, UART_LCR, up->lcr);
 	spin_unlock_irqrestore(&up->port.lock, flags);
+	pm_runtime_put(&up->pdev->dev);
 }
 
 static int serial_omap_startup(struct uart_port *port)
@@ -466,8 +508,9 @@ static int serial_omap_startup(struct uart_port *port)
 	if (retval)
 		return retval;
 
-	dev_dbg(up->port.dev, "serial_omap_startup+%d\n", up->pdev->id);
+	dev_dbg(up->port.dev, "serial_omap_startup+%d\n", up->port.line);
 
+	pm_runtime_get_sync(&up->pdev->dev);
 	/*
 	 * Clear the FIFO buffers and disable them.
 	 * (they will be reenabled in set_termios())
@@ -505,8 +548,8 @@ static int serial_omap_startup(struct uart_port *port)
 			(dma_addr_t *)&(up->uart_dma.tx_buf_dma_phys),
 			0);
 		init_timer(&(up->uart_dma.rx_timer));
-		up->uart_dma.rx_timer.function = serial_omap_rx_timeout;
-		up->uart_dma.rx_timer.data = up->pdev->id;
+		up->uart_dma.rx_timer.function = serial_omap_rxdma_poll;
+		up->uart_dma.rx_timer.data = up->port.line;
 		/* Currently the buffer size is 4KB. Can increase it */
 		up->uart_dma.rx_buf = dma_alloc_coherent(NULL,
 			up->uart_dma.rx_buf_size,
@@ -523,6 +566,8 @@ static int serial_omap_startup(struct uart_port *port)
 	/* Enable module level wake up */
 	serial_out(up, UART_OMAP_WER, OMAP_UART_WER_MOD_WKUP);
 
+	pm_runtime_mark_last_busy(&up->pdev->dev);
+	pm_runtime_put_autosuspend(&up->pdev->dev);
 	up->port_activity = jiffies;
 	return 0;
 }
@@ -532,7 +577,9 @@ static void serial_omap_shutdown(struct uart_port *port)
 	struct uart_omap_port *up = (struct uart_omap_port *)port;
 	unsigned long flags = 0;
 
-	dev_dbg(up->port.dev, "serial_omap_shutdown+%d\n", up->pdev->id);
+	dev_dbg(up->port.dev, "serial_omap_shutdown+%d\n", up->port.line);
+
+	pm_runtime_get_sync(&up->pdev->dev);
 	/*
 	 * Disable interrupts from this port
 	 */
@@ -566,6 +613,8 @@ static void serial_omap_shutdown(struct uart_port *port)
 			up->uart_dma.rx_buf_dma_phys);
 		up->uart_dma.rx_buf = NULL;
 	}
+
+	pm_runtime_put(&up->pdev->dev);
 	free_irq(up->port.irq, up);
 }
 
@@ -573,8 +622,6 @@ static inline void
 serial_omap_configure_xonxoff
 		(struct uart_omap_port *up, struct ktermios *termios)
 {
-	unsigned char efr = 0;
-
 	up->lcr = serial_in(up, UART_LCR);
 	serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
 	up->efr = serial_in(up, UART_EFR);
@@ -584,8 +631,7 @@ serial_omap_configure_xonxoff
 	serial_out(up, UART_XOFF1, termios->c_cc[VSTOP]);
 
 	/* clear SW control mode bits */
-	efr = up->efr;
-	efr &= OMAP_UART_SW_CLR;
+	up->efr &= OMAP_UART_SW_CLR;
 
 	/*
 	 * IXON Flag:
@@ -593,7 +639,7 @@ serial_omap_configure_xonxoff
 	 * Transmit XON1, XOFF1
 	 */
 	if (termios->c_iflag & IXON)
-		efr |= OMAP_UART_SW_TX;
+		up->efr |= OMAP_UART_SW_TX;
 
 	/*
 	 * IXOFF Flag:
@@ -601,7 +647,7 @@ serial_omap_configure_xonxoff
 	 * Receiver compares XON1, XOFF1.
 	 */
 	if (termios->c_iflag & IXOFF)
-		efr |= OMAP_UART_SW_RX;
+		up->efr |= OMAP_UART_SW_RX;
 
 	serial_out(up, UART_EFR, up->efr | UART_EFR_ECB);
 	serial_out(up, UART_LCR, UART_LCR_CONF_MODE_A);
@@ -624,13 +670,21 @@ serial_omap_configure_xonxoff
 	 * load the new software flow control mode IXON or IXOFF
 	 * and restore the UARTi.EFR_REG[4] ENHANCED_EN value.
 	 */
-	serial_out(up, UART_EFR, efr | UART_EFR_SCD);
+	serial_out(up, UART_EFR, up->efr | UART_EFR_SCD);
 	serial_out(up, UART_LCR, UART_LCR_CONF_MODE_A);
 
 	serial_out(up, UART_MCR, up->mcr & ~UART_MCR_TCRTLR);
 	serial_out(up, UART_LCR, up->lcr);
 }
 
+static void serial_omap_uart_qos_work(struct work_struct *work)
+{
+	struct uart_omap_port *up = container_of(work, struct uart_omap_port,
+						qos_work);
+
+	pm_qos_update_request(&up->pm_qos_request, up->latency);
+}
+
 static void
 serial_omap_set_termios(struct uart_port *port, struct ktermios *termios,
 			struct ktermios *old)
@@ -671,6 +725,16 @@ serial_omap_set_termios(struct uart_port *port, struct ktermios *termios,
 	baud = uart_get_baud_rate(port, termios, old, 0, port->uartclk/13);
 	quot = serial_omap_get_divisor(port, baud);
 
+	/* calculate wakeup latency constraint */
+	up->calc_latency = (1000000 * up->port.fifosize) /
+				(1000 * baud / 8);
+	up->latency = up->calc_latency;
+	schedule_work(&up->qos_work);
+
+	up->dll = quot & 0xff;
+	up->dlh = quot >> 8;
+	up->mdr1 = UART_OMAP_MDR1_DISABLE;
+
 	up->fcr = UART_FCR_R_TRIG_01 | UART_FCR_T_TRIG_01 |
 			UART_FCR_ENABLE_FIFO;
 	if (up->use_dma)
@@ -680,6 +744,7 @@ serial_omap_set_termios(struct uart_port *port, struct ktermios *termios,
 	 * Ok, we're now changing the port state. Do it with
 	 * interrupts disabled.
 	 */
+	pm_runtime_get_sync(&up->pdev->dev);
 	spin_lock_irqsave(&up->port.lock, flags);
 
 	/*
@@ -723,6 +788,8 @@ serial_omap_set_termios(struct uart_port *port, struct ktermios *termios,
 		up->ier |= UART_IER_MSI;
 	serial_out(up, UART_IER, up->ier);
 	serial_out(up, UART_LCR, cval);		/* reset DLAB */
+	up->lcr = cval;
+	up->scr = OMAP_UART_SCR_TX_EMPTY;
 
 	/* FIFOs and DMA Settings */
 
@@ -749,17 +816,22 @@ serial_omap_set_termios(struct uart_port *port, struct ktermios *termios,
 
 	if (up->use_dma) {
 		serial_out(up, UART_TI752_TLR, 0);
-		serial_out(up, UART_OMAP_SCR,
-			(UART_FCR_TRIGGER_4 | UART_FCR_TRIGGER_8));
+		up->scr |= (UART_FCR_TRIGGER_4 | UART_FCR_TRIGGER_8);
 	}
 
+	serial_out(up, UART_OMAP_SCR, up->scr);
+
 	serial_out(up, UART_EFR, up->efr);
 	serial_out(up, UART_LCR, UART_LCR_CONF_MODE_A);
 	serial_out(up, UART_MCR, up->mcr);
 
 	/* Protocol, Baud Rate, and Interrupt Settings */
 
-	serial_out(up, UART_OMAP_MDR1, UART_OMAP_MDR1_DISABLE);
+	if (up->errata & UART_ERRATA_i202_MDR1_ACCESS)
+		serial_omap_mdr1_errataset(up, up->mdr1);
+	else
+		serial_out(up, UART_OMAP_MDR1, up->mdr1);
+
 	serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
 
 	up->efr = serial_in(up, UART_EFR);
@@ -769,8 +841,8 @@ serial_omap_set_termios(struct uart_port *port, struct ktermios *termios,
 	serial_out(up, UART_IER, 0);
 	serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
 
-	serial_out(up, UART_DLL, quot & 0xff);          /* LS of divisor */
-	serial_out(up, UART_DLM, quot >> 8);            /* MS of divisor */
+	serial_out(up, UART_DLL, up->dll);	/* LS of divisor */
+	serial_out(up, UART_DLM, up->dlh);	/* MS of divisor */
 
 	serial_out(up, UART_LCR, 0);
 	serial_out(up, UART_IER, up->ier);
@@ -780,9 +852,14 @@ serial_omap_set_termios(struct uart_port *port, struct ktermios *termios,
 	serial_out(up, UART_LCR, cval);
 
 	if (baud > 230400 && baud != 3000000)
-		serial_out(up, UART_OMAP_MDR1, UART_OMAP_MDR1_13X_MODE);
+		up->mdr1 = UART_OMAP_MDR1_13X_MODE;
 	else
-		serial_out(up, UART_OMAP_MDR1, UART_OMAP_MDR1_16X_MODE);
+		up->mdr1 = UART_OMAP_MDR1_16X_MODE;
+
+	if (up->errata & UART_ERRATA_i202_MDR1_ACCESS)
+		serial_omap_mdr1_errataset(up, up->mdr1);
+	else
+		serial_out(up, UART_OMAP_MDR1, up->mdr1);
 
 	/* Hardware Flow Control Configuration */
 
@@ -809,7 +886,8 @@ serial_omap_set_termios(struct uart_port *port, struct ktermios *termios,
 	serial_omap_configure_xonxoff(up, termios);
 
 	spin_unlock_irqrestore(&up->port.lock, flags);
-	dev_dbg(up->port.dev, "serial_omap_set_termios+%d\n", up->pdev->id);
+	pm_runtime_put(&up->pdev->dev);
+	dev_dbg(up->port.dev, "serial_omap_set_termios+%d\n", up->port.line);
 }
 
 static void
@@ -819,7 +897,9 @@ serial_omap_pm(struct uart_port *port, unsigned int state,
 	struct uart_omap_port *up = (struct uart_omap_port *)port;
 	unsigned char efr;
 
-	dev_dbg(up->port.dev, "serial_omap_pm+%d\n", up->pdev->id);
+	dev_dbg(up->port.dev, "serial_omap_pm+%d\n", up->port.line);
+
+	pm_runtime_get_sync(&up->pdev->dev);
 	serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
 	efr = serial_in(up, UART_EFR);
 	serial_out(up, UART_EFR, efr | UART_EFR_ECB);
@@ -829,6 +909,15 @@ serial_omap_pm(struct uart_port *port, unsigned int state,
 	serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);
 	serial_out(up, UART_EFR, efr);
 	serial_out(up, UART_LCR, 0);
+
+	if (!device_may_wakeup(&up->pdev->dev)) {
+		if (!state)
+			pm_runtime_forbid(&up->pdev->dev);
+		else
+			pm_runtime_allow(&up->pdev->dev);
+	}
+
+	pm_runtime_put(&up->pdev->dev);
 }
 
 static void serial_omap_release_port(struct uart_port *port)
@@ -847,7 +936,7 @@ static void serial_omap_config_port(struct uart_port *port, int flags)
 	struct uart_omap_port *up = (struct uart_omap_port *)port;
 
 	dev_dbg(up->port.dev, "serial_omap_config_port+%d\n",
-							up->pdev->id);
+							up->port.line);
 	up->port.type = PORT_OMAP;
 }
 
@@ -864,7 +953,7 @@ serial_omap_type(struct uart_port *port)
 {
 	struct uart_omap_port *up = (struct uart_omap_port *)port;
 
-	dev_dbg(up->port.dev, "serial_omap_type+%d\n", up->pdev->id);
+	dev_dbg(up->port.dev, "serial_omap_type+%d\n", up->port.line);
 	return up->name;
 }
 
@@ -906,19 +995,26 @@ static inline void wait_for_xmitr(struct uart_omap_port *up)
 static void serial_omap_poll_put_char(struct uart_port *port, unsigned char ch)
 {
 	struct uart_omap_port *up = (struct uart_omap_port *)port;
+
+	pm_runtime_get_sync(&up->pdev->dev);
 	wait_for_xmitr(up);
 	serial_out(up, UART_TX, ch);
+	pm_runtime_put(&up->pdev->dev);
 }
 
 static int serial_omap_poll_get_char(struct uart_port *port)
 {
 	struct uart_omap_port *up = (struct uart_omap_port *)port;
-	unsigned int status = serial_in(up, UART_LSR);
+	unsigned int status;
 
+	pm_runtime_get_sync(&up->pdev->dev);
+	status = serial_in(up, UART_LSR);
 	if (!(status & UART_LSR_DR))
 		return NO_POLL_CHAR;
 
-	return serial_in(up, UART_RX);
+	status = serial_in(up, UART_RX);
+	pm_runtime_put(&up->pdev->dev);
+	return status;
 }
 
 #endif /* CONFIG_CONSOLE_POLL */
@@ -946,6 +1042,8 @@ serial_omap_console_write(struct console *co, const char *s,
 	unsigned int ier;
 	int locked = 1;
 
+	pm_runtime_get_sync(&up->pdev->dev);
+
 	local_irq_save(flags);
 	if (up->port.sysrq)
 		locked = 0;
@@ -978,6 +1076,8 @@ serial_omap_console_write(struct console *co, const char *s,
 	if (up->msr_saved_flags)
 		check_modem_status(up);
 
+	pm_runtime_mark_last_busy(&up->pdev->dev);
+	pm_runtime_put_autosuspend(&up->pdev->dev);
 	if (locked)
 		spin_unlock(&up->port.lock);
 	local_irq_restore(flags);
@@ -1014,7 +1114,7 @@ static struct console serial_omap_console = {
 
 static void serial_omap_add_console_port(struct uart_omap_port *up)
 {
-	serial_omap_console_ports[up->pdev->id] = up;
+	serial_omap_console_ports[up->port.line] = up;
 }
 
 #define OMAP_CONSOLE	(&serial_omap_console)
@@ -1060,26 +1160,30 @@ static struct uart_driver serial_omap_reg = {
 	.cons		= OMAP_CONSOLE,
 };
 
-static int
-serial_omap_suspend(struct platform_device *pdev, pm_message_t state)
+#ifdef CONFIG_SUSPEND
+static int serial_omap_suspend(struct device *dev)
 {
-	struct uart_omap_port *up = platform_get_drvdata(pdev);
+	struct uart_omap_port *up = dev_get_drvdata(dev);
 
-	if (up)
+	if (up) {
 		uart_suspend_port(&serial_omap_reg, &up->port);
+		flush_work_sync(&up->qos_work);
+	}
+
 	return 0;
 }
 
-static int serial_omap_resume(struct platform_device *dev)
+static int serial_omap_resume(struct device *dev)
 {
-	struct uart_omap_port *up = platform_get_drvdata(dev);
+	struct uart_omap_port *up = dev_get_drvdata(dev);
 
 	if (up)
 		uart_resume_port(&serial_omap_reg, &up->port);
 	return 0;
 }
+#endif
 
-static void serial_omap_rx_timeout(unsigned long uart_no)
+static void serial_omap_rxdma_poll(unsigned long uart_no)
 {
 	struct uart_omap_port *up = ui[uart_no];
 	unsigned int curr_dma_pos, curr_transmitted_size;
@@ -1089,9 +1193,9 @@ static void serial_omap_rx_timeout(unsigned long uart_no)
 	if ((curr_dma_pos == up->uart_dma.prev_rx_dma_pos) ||
 			     (curr_dma_pos == 0)) {
 		if (jiffies_to_msecs(jiffies - up->port_activity) <
-							RX_TIMEOUT) {
+						up->uart_dma.rx_timeout) {
 			mod_timer(&up->uart_dma.rx_timer, jiffies +
-				usecs_to_jiffies(up->uart_dma.rx_timeout));
+				usecs_to_jiffies(up->uart_dma.rx_poll_rate));
 		} else {
 			serial_omap_stop_rxdma(up);
 			up->ier |= (UART_IER_RDI | UART_IER_RLSI);
@@ -1120,7 +1224,7 @@ static void serial_omap_rx_timeout(unsigned long uart_no)
 		}
 	} else  {
 		mod_timer(&up->uart_dma.rx_timer, jiffies +
-			usecs_to_jiffies(up->uart_dma.rx_timeout));
+			usecs_to_jiffies(up->uart_dma.rx_poll_rate));
 	}
 	up->port_activity = jiffies;
 }
@@ -1135,6 +1239,7 @@ static int serial_omap_start_rxdma(struct uart_omap_port *up)
 	int ret = 0;
 
 	if (up->uart_dma.rx_dma_channel == -1) {
+		pm_runtime_get_sync(&up->pdev->dev);
 		ret = omap_request_dma(up->uart_dma.uart_dma_rx,
 				"UART Rx DMA",
 				(void *)uart_rx_dma_callback, up,
@@ -1158,7 +1263,7 @@ static int serial_omap_start_rxdma(struct uart_omap_port *up)
 	/* FIXME: Cache maintenance needed here? */
 	omap_start_dma(up->uart_dma.rx_dma_channel);
 	mod_timer(&up->uart_dma.rx_timer, jiffies +
-				usecs_to_jiffies(up->uart_dma.rx_timeout));
+				usecs_to_jiffies(up->uart_dma.rx_poll_rate));
 	up->uart_dma.rx_dma_used = true;
 	return ret;
 }
@@ -1221,6 +1326,19 @@ static void uart_tx_dma_callback(int lch, u16 ch_status, void *data)
 	return;
 }
 
+static struct omap_uart_port_info *of_get_uart_port_info(struct device *dev)
+{
+	struct omap_uart_port_info *omap_up_info;
+
+	omap_up_info = devm_kzalloc(dev, sizeof(*omap_up_info), GFP_KERNEL);
+	if (!omap_up_info)
+		return NULL; /* out of memory */
+
+	of_property_read_u32(dev->of_node, "clock-frequency",
+					 &omap_up_info->uartclk);
+	return omap_up_info;
+}
+
 static int serial_omap_probe(struct platform_device *pdev)
 {
 	struct uart_omap_port	*up;
@@ -1228,6 +1346,9 @@ static int serial_omap_probe(struct platform_device *pdev)
 	struct omap_uart_port_info *omap_up_info = pdev->dev.platform_data;
 	int ret = -ENOSPC;
 
+	if (pdev->dev.of_node)
+		omap_up_info = of_get_uart_port_info(&pdev->dev);
+
 	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!mem) {
 		dev_err(&pdev->dev, "no mem resource?\n");
@@ -1263,7 +1384,6 @@ static int serial_omap_probe(struct platform_device *pdev)
 		ret = -ENOMEM;
 		goto do_release_region;
 	}
-	sprintf(up->name, "OMAP UART%d", pdev->id);
 	up->pdev = pdev;
 	up->port.dev = &pdev->dev;
 	up->port.type = PORT_OMAP;
@@ -1273,34 +1393,74 @@ static int serial_omap_probe(struct platform_device *pdev)
 	up->port.regshift = 2;
 	up->port.fifosize = 64;
 	up->port.ops = &serial_omap_pops;
-	up->port.line = pdev->id;
 
-	up->port.membase = omap_up_info->membase;
-	up->port.mapbase = omap_up_info->mapbase;
+	if (pdev->dev.of_node)
+		up->port.line = of_alias_get_id(pdev->dev.of_node, "serial");
+	else
+		up->port.line = pdev->id;
+
+	if (up->port.line < 0) {
+		dev_err(&pdev->dev, "failed to get alias/pdev id, errno %d\n",
+								up->port.line);
+		ret = -ENODEV;
+		goto err;
+	}
+
+	sprintf(up->name, "OMAP UART%d", up->port.line);
+	up->port.mapbase = mem->start;
+	up->port.membase = ioremap(mem->start, resource_size(mem));
+	if (!up->port.membase) {
+		dev_err(&pdev->dev, "can't ioremap UART\n");
+		ret = -ENOMEM;
+		goto err;
+	}
+
 	up->port.flags = omap_up_info->flags;
-	up->port.irqflags = omap_up_info->irqflags;
 	up->port.uartclk = omap_up_info->uartclk;
+	if (!up->port.uartclk) {
+		up->port.uartclk = DEFAULT_CLK_SPEED;
+		dev_warn(&pdev->dev, "No clock speed specified: using default:"
+						"%d\n", DEFAULT_CLK_SPEED);
+	}
 	up->uart_dma.uart_base = mem->start;
+	up->errata = omap_up_info->errata;
 
 	if (omap_up_info->dma_enabled) {
 		up->uart_dma.uart_dma_tx = dma_tx->start;
 		up->uart_dma.uart_dma_rx = dma_rx->start;
 		up->use_dma = 1;
-		up->uart_dma.rx_buf_size = 4096;
-		up->uart_dma.rx_timeout = 2;
+		up->uart_dma.rx_buf_size = omap_up_info->dma_rx_buf_size;
+		up->uart_dma.rx_timeout = omap_up_info->dma_rx_timeout;
+		up->uart_dma.rx_poll_rate = omap_up_info->dma_rx_poll_rate;
 		spin_lock_init(&(up->uart_dma.tx_lock));
 		spin_lock_init(&(up->uart_dma.rx_lock));
 		up->uart_dma.tx_dma_channel = OMAP_UART_DMA_CH_FREE;
 		up->uart_dma.rx_dma_channel = OMAP_UART_DMA_CH_FREE;
 	}
 
-	ui[pdev->id] = up;
+	up->latency = PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE;
+	up->calc_latency = PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE;
+	pm_qos_add_request(&up->pm_qos_request,
+		PM_QOS_CPU_DMA_LATENCY, up->latency);
+	serial_omap_uart_wq = create_singlethread_workqueue(up->name);
+	INIT_WORK(&up->qos_work, serial_omap_uart_qos_work);
+
+	pm_runtime_use_autosuspend(&pdev->dev);
+	pm_runtime_set_autosuspend_delay(&pdev->dev,
+			omap_up_info->autosuspend_timeout);
+
+	pm_runtime_irq_safe(&pdev->dev);
+	pm_runtime_enable(&pdev->dev);
+	pm_runtime_get_sync(&pdev->dev);
+
+	ui[up->port.line] = up;
 	serial_omap_add_console_port(up);
 
 	ret = uart_add_one_port(&serial_omap_reg, &up->port);
 	if (ret != 0)
 		goto do_release_region;
 
+	pm_runtime_put(&pdev->dev);
 	platform_set_drvdata(pdev, up);
 	return 0;
 err:
@@ -1315,22 +1475,168 @@ static int serial_omap_remove(struct platform_device *dev)
 {
 	struct uart_omap_port *up = platform_get_drvdata(dev);
 
-	platform_set_drvdata(dev, NULL);
 	if (up) {
+		pm_runtime_disable(&up->pdev->dev);
 		uart_remove_one_port(&serial_omap_reg, &up->port);
+		pm_qos_remove_request(&up->pm_qos_request);
+
 		kfree(up);
 	}
+
+	platform_set_drvdata(dev, NULL);
 	return 0;
 }
 
+/*
+ * Work Around for Errata i202 (2430, 3430, 3630, 4430 and 4460)
+ * The access to uart register after MDR1 Access
+ * causes UART to corrupt data.
+ *
+ * Need a delay =
+ * 5 L4 clock cycles + 5 UART functional clock cycle (@48MHz = ~0.2uS)
+ * give 10 times as much
+ */
+static void serial_omap_mdr1_errataset(struct uart_omap_port *up, u8 mdr1)
+{
+	u8 timeout = 255;
+
+	serial_out(up, UART_OMAP_MDR1, mdr1);
+	udelay(2);
+	serial_out(up, UART_FCR, up->fcr | UART_FCR_CLEAR_XMIT |
+			UART_FCR_CLEAR_RCVR);
+	/*
+	 * Wait for FIFO to empty: when empty, RX_FIFO_E bit is 0 and
+	 * TX_FIFO_E bit is 1.
+	 */
+	while (UART_LSR_THRE != (serial_in(up, UART_LSR) &
+				(UART_LSR_THRE | UART_LSR_DR))) {
+		timeout--;
+		if (!timeout) {
+			/* Should *never* happen. we warn and carry on */
+			dev_crit(&up->pdev->dev, "Errata i202: timedout %x\n",
+						serial_in(up, UART_LSR));
+			break;
+		}
+		udelay(1);
+	}
+}
+
+static void serial_omap_restore_context(struct uart_omap_port *up)
+{
+	if (up->errata & UART_ERRATA_i202_MDR1_ACCESS)
+		serial_omap_mdr1_errataset(up, UART_OMAP_MDR1_DISABLE);
+	else
+		serial_out(up, UART_OMAP_MDR1, UART_OMAP_MDR1_DISABLE);
+
+	serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B); /* Config B mode */
+	serial_out(up, UART_EFR, UART_EFR_ECB);
+	serial_out(up, UART_LCR, 0x0); /* Operational mode */
+	serial_out(up, UART_IER, 0x0);
+	serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B); /* Config B mode */
+	serial_out(up, UART_DLL, up->dll);
+	serial_out(up, UART_DLM, up->dlh);
+	serial_out(up, UART_LCR, 0x0); /* Operational mode */
+	serial_out(up, UART_IER, up->ier);
+	serial_out(up, UART_FCR, up->fcr);
+	serial_out(up, UART_LCR, UART_LCR_CONF_MODE_A);
+	serial_out(up, UART_MCR, up->mcr);
+	serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B); /* Config B mode */
+	serial_out(up, UART_OMAP_SCR, up->scr);
+	serial_out(up, UART_EFR, up->efr);
+	serial_out(up, UART_LCR, up->lcr);
+	if (up->errata & UART_ERRATA_i202_MDR1_ACCESS)
+		serial_omap_mdr1_errataset(up, up->mdr1);
+	else
+		serial_out(up, UART_OMAP_MDR1, up->mdr1);
+}
+
+#ifdef CONFIG_PM_RUNTIME
+static int serial_omap_runtime_suspend(struct device *dev)
+{
+	struct uart_omap_port *up = dev_get_drvdata(dev);
+	struct omap_uart_port_info *pdata = dev->platform_data;
+
+	if (!up)
+		return -EINVAL;
+
+	if (!pdata || !pdata->enable_wakeup)
+		return 0;
+
+	if (pdata->get_context_loss_count)
+		up->context_loss_cnt = pdata->get_context_loss_count(dev);
+
+	if (device_may_wakeup(dev)) {
+		if (!up->wakeups_enabled) {
+			pdata->enable_wakeup(up->pdev, true);
+			up->wakeups_enabled = true;
+		}
+	} else {
+		if (up->wakeups_enabled) {
+			pdata->enable_wakeup(up->pdev, false);
+			up->wakeups_enabled = false;
+		}
+	}
+
+	/* Errata i291 */
+	if (up->use_dma && pdata->set_forceidle &&
+			(up->errata & UART_ERRATA_i291_DMA_FORCEIDLE))
+		pdata->set_forceidle(up->pdev);
+
+	up->latency = PM_QOS_CPU_DMA_LAT_DEFAULT_VALUE;
+	schedule_work(&up->qos_work);
+
+	return 0;
+}
+
+static int serial_omap_runtime_resume(struct device *dev)
+{
+	struct uart_omap_port *up = dev_get_drvdata(dev);
+	struct omap_uart_port_info *pdata = dev->platform_data;
+
+	if (up) {
+		if (pdata->get_context_loss_count) {
+			u32 loss_cnt = pdata->get_context_loss_count(dev);
+
+			if (up->context_loss_cnt != loss_cnt)
+				serial_omap_restore_context(up);
+		}
+
+		/* Errata i291 */
+		if (up->use_dma && pdata->set_noidle &&
+				(up->errata & UART_ERRATA_i291_DMA_FORCEIDLE))
+			pdata->set_noidle(up->pdev);
+
+		up->latency = up->calc_latency;
+		schedule_work(&up->qos_work);
+	}
+
+	return 0;
+}
+#endif
+
+static const struct dev_pm_ops serial_omap_dev_pm_ops = {
+	SET_SYSTEM_SLEEP_PM_OPS(serial_omap_suspend, serial_omap_resume)
+	SET_RUNTIME_PM_OPS(serial_omap_runtime_suspend,
+				serial_omap_runtime_resume, NULL)
+};
+
+#if defined(CONFIG_OF)
+static const struct of_device_id omap_serial_of_match[] = {
+	{ .compatible = "ti,omap2-uart" },
+	{ .compatible = "ti,omap3-uart" },
+	{ .compatible = "ti,omap4-uart" },
+	{},
+};
+MODULE_DEVICE_TABLE(of, omap_serial_of_match);
+#endif
+
 static struct platform_driver serial_omap_driver = {
 	.probe          = serial_omap_probe,
 	.remove         = serial_omap_remove,
-
-	.suspend	= serial_omap_suspend,
-	.resume		= serial_omap_resume,
 	.driver		= {
 		.name	= DRIVER_NAME,
+		.pm	= &serial_omap_dev_pm_ops,
+		.of_match_table = of_match_ptr(omap_serial_of_match),
 	},
 };
 
diff --git a/drivers/tty/serial/pch_uart.c b/drivers/tty/serial/pch_uart.c
index d6aba8c087e4..de0f613ed6f5 100644
--- a/drivers/tty/serial/pch_uart.c
+++ b/drivers/tty/serial/pch_uart.c
@@ -25,6 +25,9 @@
 #include <linux/interrupt.h>
 #include <linux/io.h>
 #include <linux/dmi.h>
+#include <linux/console.h>
+#include <linux/nmi.h>
+#include <linux/delay.h>
 
 #include <linux/dmaengine.h>
 #include <linux/pch_dma.h>
@@ -198,6 +201,10 @@ enum {
 
 #define PCI_VENDOR_ID_ROHM		0x10DB
 
+#define BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE)
+
+#define DEFAULT_BAUD_RATE 1843200 /* 1.8432MHz */
+
 struct pch_uart_buffer {
 	unsigned char *buf;
 	int size;
@@ -276,6 +283,9 @@ static struct pch_uart_driver_data drv_dat[] = {
 	[pch_ml7831_uart1] = {PCH_UART_2LINE, 1},
 };
 
+#ifdef CONFIG_SERIAL_PCH_UART_CONSOLE
+static struct eg20t_port *pch_uart_ports[PCH_UART_NR];
+#endif
 static unsigned int default_baud = 9600;
 static const int trigger_level_256[4] = { 1, 64, 128, 224 };
 static const int trigger_level_64[4] = { 1, 16, 32, 56 };
@@ -1385,6 +1395,143 @@ static struct uart_ops pch_uart_ops = {
 	.verify_port = pch_uart_verify_port
 };
 
+#ifdef CONFIG_SERIAL_PCH_UART_CONSOLE
+
+/*
+ *	Wait for transmitter & holding register to empty
+ */
+static void wait_for_xmitr(struct eg20t_port *up, int bits)
+{
+	unsigned int status, tmout = 10000;
+
+	/* Wait up to 10ms for the character(s) to be sent. */
+	for (;;) {
+		status = ioread8(up->membase + UART_LSR);
+
+		if ((status & bits) == bits)
+			break;
+		if (--tmout == 0)
+			break;
+		udelay(1);
+	}
+
+	/* Wait up to 1s for flow control if necessary */
+	if (up->port.flags & UPF_CONS_FLOW) {
+		unsigned int tmout;
+		for (tmout = 1000000; tmout; tmout--) {
+			unsigned int msr = ioread8(up->membase + UART_MSR);
+			if (msr & UART_MSR_CTS)
+				break;
+			udelay(1);
+			touch_nmi_watchdog();
+		}
+	}
+}
+
+static void pch_console_putchar(struct uart_port *port, int ch)
+{
+	struct eg20t_port *priv =
+		container_of(port, struct eg20t_port, port);
+
+	wait_for_xmitr(priv, UART_LSR_THRE);
+	iowrite8(ch, priv->membase + PCH_UART_THR);
+}
+
+/*
+ *	Print a string to the serial port trying not to disturb
+ *	any possible real use of the port...
+ *
+ *	The console_lock must be held when we get here.
+ */
+static void
+pch_console_write(struct console *co, const char *s, unsigned int count)
+{
+	struct eg20t_port *priv;
+
+	unsigned long flags;
+	u8 ier;
+	int locked = 1;
+
+	priv = pch_uart_ports[co->index];
+
+	touch_nmi_watchdog();
+
+	local_irq_save(flags);
+	if (priv->port.sysrq) {
+		/* serial8250_handle_port() already took the lock */
+		locked = 0;
+	} else if (oops_in_progress) {
+		locked = spin_trylock(&priv->port.lock);
+	} else
+		spin_lock(&priv->port.lock);
+
+	/*
+	 *	First save the IER then disable the interrupts
+	 */
+	ier = ioread8(priv->membase + UART_IER);
+
+	pch_uart_hal_disable_interrupt(priv, PCH_UART_HAL_ALL_INT);
+
+	uart_console_write(&priv->port, s, count, pch_console_putchar);
+
+	/*
+	 *	Finally, wait for transmitter to become empty
+	 *	and restore the IER
+	 */
+	wait_for_xmitr(priv, BOTH_EMPTY);
+	iowrite8(ier, priv->membase + UART_IER);
+
+	if (locked)
+		spin_unlock(&priv->port.lock);
+	local_irq_restore(flags);
+}
+
+static int __init pch_console_setup(struct console *co, char *options)
+{
+	struct uart_port *port;
+	int baud = 9600;
+	int bits = 8;
+	int parity = 'n';
+	int flow = 'n';
+
+	/*
+	 * Check whether an invalid uart number has been specified, and
+	 * if so, search for the first available port that does have
+	 * console support.
+	 */
+	if (co->index >= PCH_UART_NR)
+		co->index = 0;
+	port = &pch_uart_ports[co->index]->port;
+
+	if (!port || (!port->iobase && !port->membase))
+		return -ENODEV;
+
+	/* setup uartclock */
+	port->uartclk = DEFAULT_BAUD_RATE;
+
+	if (options)
+		uart_parse_options(options, &baud, &parity, &bits, &flow);
+
+	return uart_set_options(port, co, baud, parity, bits, flow);
+}
+
+static struct uart_driver pch_uart_driver;
+
+static struct console pch_console = {
+	.name		= PCH_UART_DRIVER_DEVICE,
+	.write		= pch_console_write,
+	.device		= uart_console_device,
+	.setup		= pch_console_setup,
+	.flags		= CON_PRINTBUFFER | CON_ANYTIME,
+	.index		= -1,
+	.data		= &pch_uart_driver,
+};
+
+#define PCH_CONSOLE	(&pch_console)
+#else
+#define PCH_CONSOLE	NULL
+#endif
+
 static struct uart_driver pch_uart_driver = {
 	.owner = THIS_MODULE,
 	.driver_name = KBUILD_MODNAME,
@@ -1392,6 +1539,7 @@ static struct uart_driver pch_uart_driver = {
 	.major = 0,
 	.minor = 0,
 	.nr = PCH_UART_NR,
+	.cons = PCH_CONSOLE,
 };
 
 static struct eg20t_port *pch_uart_init_port(struct pci_dev *pdev,
@@ -1418,7 +1566,7 @@ static struct eg20t_port *pch_uart_init_port(struct pci_dev *pdev,
 	if (!rxbuf)
 		goto init_port_free_txbuf;
 
-	base_baud = 1843200; /* 1.8432MHz */
+	base_baud = DEFAULT_BAUD_RATE;
 
 	/* quirk for CM-iTC board */
 	board_name = dmi_get_system_info(DMI_BOARD_NAME);
@@ -1468,6 +1616,9 @@ static struct eg20t_port *pch_uart_init_port(struct pci_dev *pdev,
 	pci_set_drvdata(pdev, priv);
 	pch_uart_hal_request(pdev, fifosize, base_baud);
 
+#ifdef CONFIG_SERIAL_PCH_UART_CONSOLE
+	pch_uart_ports[board->line_no] = priv;
+#endif
 	ret = uart_add_one_port(&pch_uart_driver, &priv->port);
 	if (ret < 0)
 		goto init_port_hal_free;
@@ -1475,6 +1626,9 @@ static struct eg20t_port *pch_uart_init_port(struct pci_dev *pdev,
 	return priv;
 
 init_port_hal_free:
+#ifdef CONFIG_SERIAL_PCH_UART_CONSOLE
+	pch_uart_ports[board->line_no] = NULL;
+#endif
 	free_page((unsigned long)rxbuf);
 init_port_free_txbuf:
 	kfree(priv);
@@ -1497,6 +1651,10 @@ static void pch_uart_pci_remove(struct pci_dev *pdev)
 	priv = (struct eg20t_port *)pci_get_drvdata(pdev);
 
 	pci_disable_msi(pdev);
+
+#ifdef CONFIG_SERIAL_PCH_UART_CONSOLE
+	pch_uart_ports[priv->port.line] = NULL;
+#endif
 	pch_uart_exit_port(priv);
 	pci_disable_device(pdev);
 	kfree(priv);
diff --git a/drivers/tty/serial/s3c2410.c b/drivers/tty/serial/s3c2410.c
deleted file mode 100644
index b1d7e7c1849d..000000000000
--- a/drivers/tty/serial/s3c2410.c
+++ /dev/null
@@ -1,115 +0,0 @@
-/*
- * Driver for Samsung S3C2410 SoC onboard UARTs.
- *
- * Ben Dooks, Copyright (c) 2003-2008 Simtec Electronics
- *	http://armlinux.simtec.co.uk/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
-*/
-
-#include <linux/module.h>
-#include <linux/ioport.h>
-#include <linux/io.h>
-#include <linux/platform_device.h>
-#include <linux/init.h>
-#include <linux/serial_core.h>
-#include <linux/serial.h>
-
-#include <asm/irq.h>
-#include <mach/hardware.h>
-
-#include <plat/regs-serial.h>
-#include <mach/regs-gpio.h>
-
-#include "samsung.h"
-
-static int s3c2410_serial_setsource(struct uart_port *port,
-				    struct s3c24xx_uart_clksrc *clk)
-{
-	unsigned long ucon = rd_regl(port, S3C2410_UCON);
-
-	if (strcmp(clk->name, "uclk") == 0)
-		ucon |= S3C2410_UCON_UCLK;
-	else
-		ucon &= ~S3C2410_UCON_UCLK;
-
-	wr_regl(port, S3C2410_UCON, ucon);
-	return 0;
-}
-
-static int s3c2410_serial_getsource(struct uart_port *port,
-				    struct s3c24xx_uart_clksrc *clk)
-{
-	unsigned long ucon = rd_regl(port, S3C2410_UCON);
-
-	clk->divisor = 1;
-	clk->name = (ucon & S3C2410_UCON_UCLK) ? "uclk" : "pclk";
-
-	return 0;
-}
-
-static int s3c2410_serial_resetport(struct uart_port *port,
-				    struct s3c2410_uartcfg *cfg)
-{
-	dbg("s3c2410_serial_resetport: port=%p (%08lx), cfg=%p\n",
-	    port, port->mapbase, cfg);
-
-	wr_regl(port, S3C2410_UCON,  cfg->ucon);
-	wr_regl(port, S3C2410_ULCON, cfg->ulcon);
-
-	/* reset both fifos */
-
-	wr_regl(port, S3C2410_UFCON, cfg->ufcon | S3C2410_UFCON_RESETBOTH);
-	wr_regl(port, S3C2410_UFCON, cfg->ufcon);
-
-	return 0;
-}
-
-static struct s3c24xx_uart_info s3c2410_uart_inf = {
-	.name		= "Samsung S3C2410 UART",
-	.type		= PORT_S3C2410,
-	.fifosize	= 16,
-	.rx_fifomask	= S3C2410_UFSTAT_RXMASK,
-	.rx_fifoshift	= S3C2410_UFSTAT_RXSHIFT,
-	.rx_fifofull	= S3C2410_UFSTAT_RXFULL,
-	.tx_fifofull	= S3C2410_UFSTAT_TXFULL,
-	.tx_fifomask	= S3C2410_UFSTAT_TXMASK,
-	.tx_fifoshift	= S3C2410_UFSTAT_TXSHIFT,
-	.get_clksrc	= s3c2410_serial_getsource,
-	.set_clksrc	= s3c2410_serial_setsource,
-	.reset_port	= s3c2410_serial_resetport,
-};
-
-static int s3c2410_serial_probe(struct platform_device *dev)
-{
-	return s3c24xx_serial_probe(dev, &s3c2410_uart_inf);
-}
-
-static struct platform_driver s3c2410_serial_driver = {
-	.probe		= s3c2410_serial_probe,
-	.remove		= __devexit_p(s3c24xx_serial_remove),
-	.driver		= {
-		.name	= "s3c2410-uart",
-		.owner	= THIS_MODULE,
-	},
-};
-
-static int __init s3c2410_serial_init(void)
-{
-	return s3c24xx_serial_init(&s3c2410_serial_driver, &s3c2410_uart_inf);
-}
-
-static void __exit s3c2410_serial_exit(void)
-{
-	platform_driver_unregister(&s3c2410_serial_driver);
-}
-
-module_init(s3c2410_serial_init);
-module_exit(s3c2410_serial_exit);
-
-MODULE_LICENSE("GPL v2");
-MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
-MODULE_DESCRIPTION("Samsung S3C2410 SoC Serial port driver");
-MODULE_ALIAS("platform:s3c2410-uart");
diff --git a/drivers/tty/serial/s3c2412.c b/drivers/tty/serial/s3c2412.c
deleted file mode 100644
index 2234bf9ced45..000000000000
--- a/drivers/tty/serial/s3c2412.c
+++ /dev/null
@@ -1,149 +0,0 @@
-/*
- * Driver for Samsung S3C2412 and S3C2413 SoC onboard UARTs.
- *
- * Ben Dooks, Copyright (c) 2003-2008 Simtec Electronics
- *	http://armlinux.simtec.co.uk/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
-*/
-
-#include <linux/module.h>
-#include <linux/ioport.h>
-#include <linux/io.h>
-#include <linux/platform_device.h>
-#include <linux/init.h>
-#include <linux/serial_core.h>
-#include <linux/serial.h>
-
-#include <asm/irq.h>
-#include <mach/hardware.h>
-
-#include <plat/regs-serial.h>
-#include <mach/regs-gpio.h>
-
-#include "samsung.h"
-
-static int s3c2412_serial_setsource(struct uart_port *port,
-				     struct s3c24xx_uart_clksrc *clk)
-{
-	unsigned long ucon = rd_regl(port, S3C2410_UCON);
-
-	ucon &= ~S3C2412_UCON_CLKMASK;
-
-	if (strcmp(clk->name, "uclk") == 0)
-		ucon |= S3C2440_UCON_UCLK;
-	else if (strcmp(clk->name, "pclk") == 0)
-		ucon |= S3C2440_UCON_PCLK;
-	else if (strcmp(clk->name, "usysclk") == 0)
-		ucon |= S3C2412_UCON_USYSCLK;
-	else {
-		printk(KERN_ERR "unknown clock source %s\n", clk->name);
-		return -EINVAL;
-	}
-
-	wr_regl(port, S3C2410_UCON, ucon);
-	return 0;
-}
-
-
-static int s3c2412_serial_getsource(struct uart_port *port,
-				    struct s3c24xx_uart_clksrc *clk)
-{
-	unsigned long ucon = rd_regl(port, S3C2410_UCON);
-
-	switch (ucon & S3C2412_UCON_CLKMASK) {
-	case S3C2412_UCON_UCLK:
-		clk->divisor = 1;
-		clk->name = "uclk";
-		break;
-
-	case S3C2412_UCON_PCLK:
-	case S3C2412_UCON_PCLK2:
-		clk->divisor = 1;
-		clk->name = "pclk";
-		break;
-
-	case S3C2412_UCON_USYSCLK:
-		clk->divisor = 1;
-		clk->name = "usysclk";
-		break;
-	}
-
-	return 0;
-}
-
-static int s3c2412_serial_resetport(struct uart_port *port,
-				    struct s3c2410_uartcfg *cfg)
-{
-	unsigned long ucon = rd_regl(port, S3C2410_UCON);
-
-	dbg("%s: port=%p (%08lx), cfg=%p\n",
-	    __func__, port, port->mapbase, cfg);
-
-	/* ensure we don't change the clock settings... */
-
-	ucon &= S3C2412_UCON_CLKMASK;
-
-	wr_regl(port, S3C2410_UCON,  ucon | cfg->ucon);
-	wr_regl(port, S3C2410_ULCON, cfg->ulcon);
-
-	/* reset both fifos */
-
-	wr_regl(port, S3C2410_UFCON, cfg->ufcon | S3C2410_UFCON_RESETBOTH);
-	wr_regl(port, S3C2410_UFCON, cfg->ufcon);
-
-	return 0;
-}
-
-static struct s3c24xx_uart_info s3c2412_uart_inf = {
-	.name		= "Samsung S3C2412 UART",
-	.type		= PORT_S3C2412,
-	.fifosize	= 64,
-	.has_divslot	= 1,
-	.rx_fifomask	= S3C2440_UFSTAT_RXMASK,
-	.rx_fifoshift	= S3C2440_UFSTAT_RXSHIFT,
-	.rx_fifofull	= S3C2440_UFSTAT_RXFULL,
-	.tx_fifofull	= S3C2440_UFSTAT_TXFULL,
-	.tx_fifomask	= S3C2440_UFSTAT_TXMASK,
-	.tx_fifoshift	= S3C2440_UFSTAT_TXSHIFT,
-	.get_clksrc	= s3c2412_serial_getsource,
-	.set_clksrc	= s3c2412_serial_setsource,
-	.reset_port	= s3c2412_serial_resetport,
-};
-
-/* device management */
-
-static int s3c2412_serial_probe(struct platform_device *dev)
-{
-	dbg("s3c2440_serial_probe: dev=%p\n", dev);
-	return s3c24xx_serial_probe(dev, &s3c2412_uart_inf);
-}
-
-static struct platform_driver s3c2412_serial_driver = {
-	.probe		= s3c2412_serial_probe,
-	.remove		= __devexit_p(s3c24xx_serial_remove),
-	.driver		= {
-		.name	= "s3c2412-uart",
-		.owner	= THIS_MODULE,
-	},
-};
-
-static inline int s3c2412_serial_init(void)
-{
-	return s3c24xx_serial_init(&s3c2412_serial_driver, &s3c2412_uart_inf);
-}
-
-static inline void s3c2412_serial_exit(void)
-{
-	platform_driver_unregister(&s3c2412_serial_driver);
-}
-
-module_init(s3c2412_serial_init);
-module_exit(s3c2412_serial_exit);
-
-MODULE_DESCRIPTION("Samsung S3C2412,S3C2413 SoC Serial port driver");
-MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
-MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("platform:s3c2412-uart");
diff --git a/drivers/tty/serial/s3c2440.c b/drivers/tty/serial/s3c2440.c
deleted file mode 100644
index 1d0c324b813f..000000000000
--- a/drivers/tty/serial/s3c2440.c
+++ /dev/null
@@ -1,178 +0,0 @@
-/*
- * Driver for Samsung S3C2440 and S3C2442 SoC onboard UARTs.
- *
- * Ben Dooks, Copyright (c) 2003-2008 Simtec Electronics
- *	http://armlinux.simtec.co.uk/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
-*/
-
-#include <linux/module.h>
-#include <linux/ioport.h>
-#include <linux/io.h>
-#include <linux/platform_device.h>
-#include <linux/init.h>
-#include <linux/serial_core.h>
-#include <linux/serial.h>
-
-#include <asm/irq.h>
-#include <mach/hardware.h>
-
-#include <plat/regs-serial.h>
-#include <mach/regs-gpio.h>
-
-#include "samsung.h"
-
-
-static int s3c2440_serial_setsource(struct uart_port *port,
-				     struct s3c24xx_uart_clksrc *clk)
-{
-	unsigned long ucon = rd_regl(port, S3C2410_UCON);
-
-	/* todo - proper fclk<>nonfclk switch. */
-
-	ucon &= ~S3C2440_UCON_CLKMASK;
-
-	if (strcmp(clk->name, "uclk") == 0)
-		ucon |= S3C2440_UCON_UCLK;
-	else if (strcmp(clk->name, "pclk") == 0)
-		ucon |= S3C2440_UCON_PCLK;
-	else if (strcmp(clk->name, "fclk") == 0)
-		ucon |= S3C2440_UCON_FCLK;
-	else {
-		printk(KERN_ERR "unknown clock source %s\n", clk->name);
-		return -EINVAL;
-	}
-
-	wr_regl(port, S3C2410_UCON, ucon);
-	return 0;
-}
-
-
-static int s3c2440_serial_getsource(struct uart_port *port,
-				    struct s3c24xx_uart_clksrc *clk)
-{
-	unsigned long ucon = rd_regl(port, S3C2410_UCON);
-	unsigned long ucon0, ucon1, ucon2;
-
-	switch (ucon & S3C2440_UCON_CLKMASK) {
-	case S3C2440_UCON_UCLK:
-		clk->divisor = 1;
-		clk->name = "uclk";
-		break;
-
-	case S3C2440_UCON_PCLK:
-	case S3C2440_UCON_PCLK2:
-		clk->divisor = 1;
-		clk->name = "pclk";
-		break;
-
-	case S3C2440_UCON_FCLK:
-		/* the fun of calculating the uart divisors on
-		 * the s3c2440 */
-
-		ucon0 = __raw_readl(S3C24XX_VA_UART0 + S3C2410_UCON);
-		ucon1 = __raw_readl(S3C24XX_VA_UART1 + S3C2410_UCON);
-		ucon2 = __raw_readl(S3C24XX_VA_UART2 + S3C2410_UCON);
-
-		printk("ucons: %08lx, %08lx, %08lx\n", ucon0, ucon1, ucon2);
-
-		ucon0 &= S3C2440_UCON0_DIVMASK;
-		ucon1 &= S3C2440_UCON1_DIVMASK;
-		ucon2 &= S3C2440_UCON2_DIVMASK;
-
-		if (ucon0 != 0) {
-			clk->divisor = ucon0 >> S3C2440_UCON_DIVSHIFT;
-			clk->divisor += 6;
-		} else if (ucon1 != 0) {
-			clk->divisor = ucon1 >> S3C2440_UCON_DIVSHIFT;
-			clk->divisor += 21;
-		} else if (ucon2 != 0) {
-			clk->divisor = ucon2 >> S3C2440_UCON_DIVSHIFT;
-			clk->divisor += 36;
-		} else {
-			/* manual calims 44, seems to be 9 */
-			clk->divisor = 9;
-		}
-
-		clk->name = "fclk";
-		break;
-	}
-
-	return 0;
-}
-
-static int s3c2440_serial_resetport(struct uart_port *port,
-				    struct s3c2410_uartcfg *cfg)
-{
-	unsigned long ucon = rd_regl(port, S3C2410_UCON);
-
-	dbg("s3c2440_serial_resetport: port=%p (%08lx), cfg=%p\n",
-	    port, port->mapbase, cfg);
-
-	/* ensure we don't change the clock settings... */
-
-	ucon &= (S3C2440_UCON0_DIVMASK | (3<<10));
-
-	wr_regl(port, S3C2410_UCON,  ucon | cfg->ucon);
-	wr_regl(port, S3C2410_ULCON, cfg->ulcon);
-
-	/* reset both fifos */
-
-	wr_regl(port, S3C2410_UFCON, cfg->ufcon | S3C2410_UFCON_RESETBOTH);
-	wr_regl(port, S3C2410_UFCON, cfg->ufcon);
-
-	return 0;
-}
-
-static struct s3c24xx_uart_info s3c2440_uart_inf = {
-	.name		= "Samsung S3C2440 UART",
-	.type		= PORT_S3C2440,
-	.fifosize	= 64,
-	.rx_fifomask	= S3C2440_UFSTAT_RXMASK,
-	.rx_fifoshift	= S3C2440_UFSTAT_RXSHIFT,
-	.rx_fifofull	= S3C2440_UFSTAT_RXFULL,
-	.tx_fifofull	= S3C2440_UFSTAT_TXFULL,
-	.tx_fifomask	= S3C2440_UFSTAT_TXMASK,
-	.tx_fifoshift	= S3C2440_UFSTAT_TXSHIFT,
-	.get_clksrc	= s3c2440_serial_getsource,
-	.set_clksrc	= s3c2440_serial_setsource,
-	.reset_port	= s3c2440_serial_resetport,
-};
-
-/* device management */
-
-static int s3c2440_serial_probe(struct platform_device *dev)
-{
-	dbg("s3c2440_serial_probe: dev=%p\n", dev);
-	return s3c24xx_serial_probe(dev, &s3c2440_uart_inf);
-}
-
-static struct platform_driver s3c2440_serial_driver = {
-	.probe		= s3c2440_serial_probe,
-	.remove		= __devexit_p(s3c24xx_serial_remove),
-	.driver		= {
-		.name	= "s3c2440-uart",
-		.owner	= THIS_MODULE,
-	},
-};
-
-static int __init s3c2440_serial_init(void)
-{
-	return s3c24xx_serial_init(&s3c2440_serial_driver, &s3c2440_uart_inf);
-}
-
-static void __exit s3c2440_serial_exit(void)
-{
-	platform_driver_unregister(&s3c2440_serial_driver);
-}
-
-module_init(s3c2440_serial_init);
-module_exit(s3c2440_serial_exit);
-
-MODULE_DESCRIPTION("Samsung S3C2440,S3C2442 SoC Serial port driver");
-MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
-MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("platform:s3c2440-uart");
diff --git a/drivers/tty/serial/s3c6400.c b/drivers/tty/serial/s3c6400.c
deleted file mode 100644
index e2f6913d84d5..000000000000
--- a/drivers/tty/serial/s3c6400.c
+++ /dev/null
@@ -1,149 +0,0 @@
-/*
- * Driver for Samsung S3C6400 and S3C6410 SoC onboard UARTs.
- *
- * Copyright 2008 Openmoko,  Inc.
- * Copyright 2008 Simtec Electronics
- *	Ben Dooks <ben@simtec.co.uk>
- *	http://armlinux.simtec.co.uk/
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
-*/
-
-#include <linux/module.h>
-#include <linux/ioport.h>
-#include <linux/io.h>
-#include <linux/platform_device.h>
-#include <linux/init.h>
-#include <linux/serial_core.h>
-#include <linux/serial.h>
-
-#include <asm/irq.h>
-#include <mach/hardware.h>
-
-#include <plat/regs-serial.h>
-
-#include "samsung.h"
-
-static int s3c6400_serial_setsource(struct uart_port *port,
-				    struct s3c24xx_uart_clksrc *clk)
-{
-	unsigned long ucon = rd_regl(port, S3C2410_UCON);
-
-	if (strcmp(clk->name, "uclk0") == 0) {
-		ucon &= ~S3C6400_UCON_CLKMASK;
-		ucon |= S3C6400_UCON_UCLK0;
-	} else if (strcmp(clk->name, "uclk1") == 0)
-		ucon |= S3C6400_UCON_UCLK1;
-	else if (strcmp(clk->name, "pclk") == 0) {
-		/* See notes about transitioning from UCLK to PCLK */
-		ucon &= ~S3C6400_UCON_UCLK0;
-	} else {
-		printk(KERN_ERR "unknown clock source %s\n", clk->name);
-		return -EINVAL;
-	}
-
-	wr_regl(port, S3C2410_UCON, ucon);
-	return 0;
-}
-
-
-static int s3c6400_serial_getsource(struct uart_port *port,
-				    struct s3c24xx_uart_clksrc *clk)
-{
-	u32 ucon = rd_regl(port, S3C2410_UCON);
-
-	clk->divisor = 1;
-
-	switch (ucon & S3C6400_UCON_CLKMASK) {
-	case S3C6400_UCON_UCLK0:
-		clk->name = "uclk0";
-		break;
-
-	case S3C6400_UCON_UCLK1:
-		clk->name = "uclk1";
-		break;
-
-	case S3C6400_UCON_PCLK:
-	case S3C6400_UCON_PCLK2:
-		clk->name = "pclk";
-		break;
-	}
-
-	return 0;
-}
-
-static int s3c6400_serial_resetport(struct uart_port *port,
-				    struct s3c2410_uartcfg *cfg)
-{
-	unsigned long ucon = rd_regl(port, S3C2410_UCON);
-
-	dbg("s3c6400_serial_resetport: port=%p (%08lx), cfg=%p\n",
-	    port, port->mapbase, cfg);
-
-	/* ensure we don't change the clock settings... */
-
-	ucon &= S3C6400_UCON_CLKMASK;
-
-	wr_regl(port, S3C2410_UCON,  ucon | cfg->ucon);
-	wr_regl(port, S3C2410_ULCON, cfg->ulcon);
-
-	/* reset both fifos */
-
-	wr_regl(port, S3C2410_UFCON, cfg->ufcon | S3C2410_UFCON_RESETBOTH);
-	wr_regl(port, S3C2410_UFCON, cfg->ufcon);
-
-	return 0;
-}
-
-static struct s3c24xx_uart_info s3c6400_uart_inf = {
-	.name		= "Samsung S3C6400 UART",
-	.type		= PORT_S3C6400,
-	.fifosize	= 64,
-	.has_divslot	= 1,
-	.rx_fifomask	= S3C2440_UFSTAT_RXMASK,
-	.rx_fifoshift	= S3C2440_UFSTAT_RXSHIFT,
-	.rx_fifofull	= S3C2440_UFSTAT_RXFULL,
-	.tx_fifofull	= S3C2440_UFSTAT_TXFULL,
-	.tx_fifomask	= S3C2440_UFSTAT_TXMASK,
-	.tx_fifoshift	= S3C2440_UFSTAT_TXSHIFT,
-	.get_clksrc	= s3c6400_serial_getsource,
-	.set_clksrc	= s3c6400_serial_setsource,
-	.reset_port	= s3c6400_serial_resetport,
-};
-
-/* device management */
-
-static int s3c6400_serial_probe(struct platform_device *dev)
-{
-	dbg("s3c6400_serial_probe: dev=%p\n", dev);
-	return s3c24xx_serial_probe(dev, &s3c6400_uart_inf);
-}
-
-static struct platform_driver s3c6400_serial_driver = {
-	.probe		= s3c6400_serial_probe,
-	.remove		= __devexit_p(s3c24xx_serial_remove),
-	.driver		= {
-		.name	= "s3c6400-uart",
-		.owner	= THIS_MODULE,
-	},
-};
-
-static int __init s3c6400_serial_init(void)
-{
-	return s3c24xx_serial_init(&s3c6400_serial_driver, &s3c6400_uart_inf);
-}
-
-static void __exit s3c6400_serial_exit(void)
-{
-	platform_driver_unregister(&s3c6400_serial_driver);
-}
-
-module_init(s3c6400_serial_init);
-module_exit(s3c6400_serial_exit);
-
-MODULE_DESCRIPTION("Samsung S3C6400,S3C6410 SoC Serial port driver");
-MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
-MODULE_LICENSE("GPL v2");
-MODULE_ALIAS("platform:s3c6400-uart");
diff --git a/drivers/tty/serial/s5pv210.c b/drivers/tty/serial/s5pv210.c
deleted file mode 100644
index 8b0b888a1b76..000000000000
--- a/drivers/tty/serial/s5pv210.c
+++ /dev/null
@@ -1,158 +0,0 @@
-/*
- * Copyright (c) 2010 Samsung Electronics Co., Ltd.
- *		http://www.samsung.com/
- *
- * Based on drivers/serial/s3c6400.c
- *
- * Driver for Samsung S5PV210 SoC UARTs.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
-*/
-
-#include <linux/module.h>
-#include <linux/ioport.h>
-#include <linux/io.h>
-#include <linux/platform_device.h>
-#include <linux/init.h>
-#include <linux/serial_core.h>
-#include <linux/serial.h>
-#include <linux/delay.h>
-
-#include <asm/irq.h>
-#include <mach/hardware.h>
-#include <plat/regs-serial.h>
-#include "samsung.h"
-
-static int s5pv210_serial_setsource(struct uart_port *port,
-					struct s3c24xx_uart_clksrc *clk)
-{
-	struct s3c2410_uartcfg *cfg = port->dev->platform_data;
-	unsigned long ucon = rd_regl(port, S3C2410_UCON);
-
-	if (cfg->flags & NO_NEED_CHECK_CLKSRC)
-		return 0;
-
-	if (strcmp(clk->name, "pclk") == 0)
-		ucon &= ~S5PV210_UCON_CLKMASK;
-	else if (strcmp(clk->name, "uclk1") == 0)
-		ucon |= S5PV210_UCON_CLKMASK;
-	else {
-		printk(KERN_ERR "unknown clock source %s\n", clk->name);
-		return -EINVAL;
-	}
-
-	wr_regl(port, S3C2410_UCON, ucon);
-	return 0;
-}
-
-
-static int s5pv210_serial_getsource(struct uart_port *port,
-					struct s3c24xx_uart_clksrc *clk)
-{
-	struct s3c2410_uartcfg *cfg = port->dev->platform_data;
-	u32 ucon = rd_regl(port, S3C2410_UCON);
-
-	clk->divisor = 1;
-
-	if (cfg->flags & NO_NEED_CHECK_CLKSRC)
-		return 0;
-
-	switch (ucon & S5PV210_UCON_CLKMASK) {
-	case S5PV210_UCON_PCLK:
-		clk->name = "pclk";
-		break;
-	case S5PV210_UCON_UCLK:
-		clk->name = "uclk1";
-		break;
-	}
-
-	return 0;
-}
-
-static int s5pv210_serial_resetport(struct uart_port *port,
-					struct s3c2410_uartcfg *cfg)
-{
-	unsigned long ucon = rd_regl(port, S3C2410_UCON);
-
-	ucon &= S5PV210_UCON_CLKMASK;
-	wr_regl(port, S3C2410_UCON,  ucon | cfg->ucon);
-	wr_regl(port, S3C2410_ULCON, cfg->ulcon);
-
-	/* reset both fifos */
-	wr_regl(port, S3C2410_UFCON, cfg->ufcon | S3C2410_UFCON_RESETBOTH);
-	wr_regl(port, S3C2410_UFCON, cfg->ufcon);
-
-	/* It is need to delay When reset FIFO register */
-	udelay(1);
-
-	return 0;
-}
-
-#define S5PV210_UART_DEFAULT_INFO(fifo_size)			\
-		.name		= "Samsung S5PV210 UART0",	\
-		.type		= PORT_S3C6400,			\
-		.fifosize	= fifo_size,			\
-		.has_divslot	= 1,				\
-		.rx_fifomask	= S5PV210_UFSTAT_RXMASK,	\
-		.rx_fifoshift	= S5PV210_UFSTAT_RXSHIFT,	\
-		.rx_fifofull	= S5PV210_UFSTAT_RXFULL,	\
-		.tx_fifofull	= S5PV210_UFSTAT_TXFULL,	\
-		.tx_fifomask	= S5PV210_UFSTAT_TXMASK,	\
-		.tx_fifoshift	= S5PV210_UFSTAT_TXSHIFT,	\
-		.get_clksrc	= s5pv210_serial_getsource,	\
-		.set_clksrc	= s5pv210_serial_setsource,	\
-		.reset_port	= s5pv210_serial_resetport
-
-static struct s3c24xx_uart_info s5p_port_fifo256 = {
-	S5PV210_UART_DEFAULT_INFO(256),
-};
-
-static struct s3c24xx_uart_info s5p_port_fifo64 = {
-	S5PV210_UART_DEFAULT_INFO(64),
-};
-
-static struct s3c24xx_uart_info s5p_port_fifo16 = {
-	S5PV210_UART_DEFAULT_INFO(16),
-};
-
-static struct s3c24xx_uart_info *s5p_uart_inf[] = {
-	[0] = &s5p_port_fifo256,
-	[1] = &s5p_port_fifo64,
-	[2] = &s5p_port_fifo16,
-	[3] = &s5p_port_fifo16,
-};
-
-/* device management */
-static int s5p_serial_probe(struct platform_device *pdev)
-{
-	return s3c24xx_serial_probe(pdev, s5p_uart_inf[pdev->id]);
-}
-
-static struct platform_driver s5p_serial_driver = {
-	.probe		= s5p_serial_probe,
-	.remove		= __devexit_p(s3c24xx_serial_remove),
-	.driver		= {
-		.name	= "s5pv210-uart",
-		.owner	= THIS_MODULE,
-	},
-};
-
-static int __init s5p_serial_init(void)
-{
-	return s3c24xx_serial_init(&s5p_serial_driver, *s5p_uart_inf);
-}
-
-static void __exit s5p_serial_exit(void)
-{
-	platform_driver_unregister(&s5p_serial_driver);
-}
-
-module_init(s5p_serial_init);
-module_exit(s5p_serial_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_ALIAS("platform:s5pv210-uart");
-MODULE_DESCRIPTION("Samsung S5PV210 UART Driver support");
-MODULE_AUTHOR("Thomas Abraham <thomas.ab@samsung.com>");
diff --git a/drivers/tty/serial/samsung.c b/drivers/tty/serial/samsung.c
index b31f1c3a2c4c..f96f37b5fec6 100644
--- a/drivers/tty/serial/samsung.c
+++ b/drivers/tty/serial/samsung.c
@@ -42,6 +42,7 @@
 #include <linux/delay.h>
 #include <linux/clk.h>
 #include <linux/cpufreq.h>
+#include <linux/of.h>
 
 #include <asm/irq.h>
 
@@ -49,6 +50,7 @@
 #include <mach/map.h>
 
 #include <plat/regs-serial.h>
+#include <plat/clock.h>
 
 #include "samsung.h"
 
@@ -190,10 +192,13 @@ static inline struct s3c24xx_uart_info *s3c24xx_port_to_info(struct uart_port *p
 
 static inline struct s3c2410_uartcfg *s3c24xx_port_to_cfg(struct uart_port *port)
 {
+	struct s3c24xx_uart_port *ourport;
+
 	if (port->dev == NULL)
 		return NULL;
 
-	return (struct s3c2410_uartcfg *)port->dev->platform_data;
+	ourport = container_of(port, struct s3c24xx_uart_port, port);
+	return ourport->cfg;
 }
 
 static int s3c24xx_serial_rx_fifocnt(struct s3c24xx_uart_port *ourport,
@@ -202,7 +207,7 @@ static int s3c24xx_serial_rx_fifocnt(struct s3c24xx_uart_port *ourport,
 	struct s3c24xx_uart_info *info = ourport->info;
 
 	if (ufstat & info->rx_fifofull)
-		return info->fifosize;
+		return ourport->port.fifosize;
 
 	return (ufstat & info->rx_fifomask) >> info->rx_fifoshift;
 }
@@ -555,154 +560,98 @@ static void s3c24xx_serial_pm(struct uart_port *port, unsigned int level,
  *
 */
 
+#define MAX_CLK_NAME_LENGTH 15
 
-#define MAX_CLKS (8)
-
-static struct s3c24xx_uart_clksrc tmp_clksrc = {
-	.name		= "pclk",
-	.min_baud	= 0,
-	.max_baud	= 0,
-	.divisor	= 1,
-};
-
-static inline int
-s3c24xx_serial_getsource(struct uart_port *port, struct s3c24xx_uart_clksrc *c)
+static inline int s3c24xx_serial_getsource(struct uart_port *port)
 {
 	struct s3c24xx_uart_info *info = s3c24xx_port_to_info(port);
+	unsigned int ucon;
 
-	return (info->get_clksrc)(port, c);
-}
-
-static inline int
-s3c24xx_serial_setsource(struct uart_port *port, struct s3c24xx_uart_clksrc *c)
-{
-	struct s3c24xx_uart_info *info = s3c24xx_port_to_info(port);
+	if (info->num_clks == 1)
+		return 0;
 
-	return (info->set_clksrc)(port, c);
+	ucon = rd_regl(port, S3C2410_UCON);
+	ucon &= info->clksel_mask;
+	return ucon >> info->clksel_shift;
 }
 
-struct baud_calc {
-	struct s3c24xx_uart_clksrc	*clksrc;
-	unsigned int			 calc;
-	unsigned int			 divslot;
-	unsigned int			 quot;
-	struct clk			*src;
-};
-
-static int s3c24xx_serial_calcbaud(struct baud_calc *calc,
-				   struct uart_port *port,
-				   struct s3c24xx_uart_clksrc *clksrc,
-				   unsigned int baud)
+static void s3c24xx_serial_setsource(struct uart_port *port,
+			unsigned int clk_sel)
 {
-	struct s3c24xx_uart_port *ourport = to_ourport(port);
-	unsigned long rate;
-
-	calc->src = clk_get(port->dev, clksrc->name);
-	if (calc->src == NULL || IS_ERR(calc->src))
-		return 0;
-
-	rate = clk_get_rate(calc->src);
-	rate /= clksrc->divisor;
+	struct s3c24xx_uart_info *info = s3c24xx_port_to_info(port);
+	unsigned int ucon;
 
-	calc->clksrc = clksrc;
+	if (info->num_clks == 1)
+		return;
 
-	if (ourport->info->has_divslot) {
-		unsigned long div = rate / baud;
-
-		/* The UDIVSLOT register on the newer UARTs allows us to
-		 * get a divisor adjustment of 1/16th on the baud clock.
-		 *
-		 * We don't keep the UDIVSLOT value (the 16ths we calculated
-		 * by not multiplying the baud by 16) as it is easy enough
-		 * to recalculate.
-		 */
-
-		calc->quot = div / 16;
-		calc->calc = rate / div;
-	} else {
-		calc->quot = (rate + (8 * baud)) / (16 * baud);
-		calc->calc = (rate / (calc->quot * 16));
-	}
+	ucon = rd_regl(port, S3C2410_UCON);
+	if ((ucon & info->clksel_mask) >> info->clksel_shift == clk_sel)
+		return;
 
-	calc->quot--;
-	return 1;
+	ucon &= ~info->clksel_mask;
+	ucon |= clk_sel << info->clksel_shift;
+	wr_regl(port, S3C2410_UCON, ucon);
 }
 
-static unsigned int s3c24xx_serial_getclk(struct uart_port *port,
-					  struct s3c24xx_uart_clksrc **clksrc,
-					  struct clk **clk,
-					  unsigned int baud)
+static unsigned int s3c24xx_serial_getclk(struct s3c24xx_uart_port *ourport,
+			unsigned int req_baud, struct clk **best_clk,
+			unsigned int *clk_num)
 {
-	struct s3c2410_uartcfg *cfg = s3c24xx_port_to_cfg(port);
-	struct s3c24xx_uart_clksrc *clkp;
-	struct baud_calc res[MAX_CLKS];
-	struct baud_calc *resptr, *best, *sptr;
-	int i;
-
-	clkp = cfg->clocks;
-	best = NULL;
-
-	if (cfg->clocks_size < 2) {
-		if (cfg->clocks_size == 0)
-			clkp = &tmp_clksrc;
-
-		/* check to see if we're sourcing fclk, and if so we're
-		 * going to have to update the clock source
-		 */
-
-		if (strcmp(clkp->name, "fclk") == 0) {
-			struct s3c24xx_uart_clksrc src;
-
-			s3c24xx_serial_getsource(port, &src);
-
-			/* check that the port already using fclk, and if
-			 * not, then re-select fclk
+	struct s3c24xx_uart_info *info = ourport->info;
+	struct clk *clk;
+	unsigned long rate;
+	unsigned int cnt, baud, quot, clk_sel, best_quot = 0;
+	char clkname[MAX_CLK_NAME_LENGTH];
+	int calc_deviation, deviation = (1 << 30) - 1;
+
+	*best_clk = NULL;
+	clk_sel = (ourport->cfg->clk_sel) ? ourport->cfg->clk_sel :
+			ourport->info->def_clk_sel;
+	for (cnt = 0; cnt < info->num_clks; cnt++) {
+		if (!(clk_sel & (1 << cnt)))
+			continue;
+
+		sprintf(clkname, "clk_uart_baud%d", cnt);
+		clk = clk_get(ourport->port.dev, clkname);
+		if (IS_ERR_OR_NULL(clk))
+			continue;
+
+		rate = clk_get_rate(clk);
+		if (!rate)
+			continue;
+
+		if (ourport->info->has_divslot) {
+			unsigned long div = rate / req_baud;
+
+			/* The UDIVSLOT register on the newer UARTs allows us to
+			 * get a divisor adjustment of 1/16th on the baud clock.
+			 *
+			 * We don't keep the UDIVSLOT value (the 16ths we
+			 * calculated by not multiplying the baud by 16) as it
+			 * is easy enough to recalculate.
 			 */
 
-			if (strcmp(src.name, clkp->name) == 0) {
-				s3c24xx_serial_setsource(port, clkp);
-				s3c24xx_serial_getsource(port, &src);
-			}
-
-			clkp->divisor = src.divisor;
-		}
-
-		s3c24xx_serial_calcbaud(res, port, clkp, baud);
-		best = res;
-		resptr = best + 1;
-	} else {
-		resptr = res;
-
-		for (i = 0; i < cfg->clocks_size; i++, clkp++) {
-			if (s3c24xx_serial_calcbaud(resptr, port, clkp, baud))
-				resptr++;
+			quot = div / 16;
+			baud = rate / div;
+		} else {
+			quot = (rate + (8 * req_baud)) / (16 * req_baud);
+			baud = rate / (quot * 16);
 		}
-	}
-
-	/* ok, we now need to select the best clock we found */
-
-	if (!best) {
-		unsigned int deviation = (1<<30)|((1<<30)-1);
-		int calc_deviation;
+		quot--;
 
-		for (sptr = res; sptr < resptr; sptr++) {
-			calc_deviation = baud - sptr->calc;
-			if (calc_deviation < 0)
-				calc_deviation = -calc_deviation;
+		calc_deviation = req_baud - baud;
+		if (calc_deviation < 0)
+			calc_deviation = -calc_deviation;
 
-			if (calc_deviation < deviation) {
-				best = sptr;
-				deviation = calc_deviation;
-			}
+		if (calc_deviation < deviation) {
+			*best_clk = clk;
+			best_quot = quot;
+			*clk_num = cnt;
+			deviation = calc_deviation;
 		}
 	}
 
-	/* store results to pass back */
-
-	*clksrc = best->clksrc;
-	*clk    = best->src;
-
-	return best->quot;
+	return best_quot;
 }
 
 /* udivslot_table[]
@@ -735,10 +684,9 @@ static void s3c24xx_serial_set_termios(struct uart_port *port,
 {
 	struct s3c2410_uartcfg *cfg = s3c24xx_port_to_cfg(port);
 	struct s3c24xx_uart_port *ourport = to_ourport(port);
-	struct s3c24xx_uart_clksrc *clksrc = NULL;
 	struct clk *clk = NULL;
 	unsigned long flags;
-	unsigned int baud, quot;
+	unsigned int baud, quot, clk_sel = 0;
 	unsigned int ulcon;
 	unsigned int umcon;
 	unsigned int udivslot = 0;
@@ -754,17 +702,16 @@ static void s3c24xx_serial_set_termios(struct uart_port *port,
 	 */
 
 	baud = uart_get_baud_rate(port, termios, old, 0, 115200*8);
-
+	quot = s3c24xx_serial_getclk(ourport, baud, &clk, &clk_sel);
 	if (baud == 38400 && (port->flags & UPF_SPD_MASK) == UPF_SPD_CUST)
 		quot = port->custom_divisor;
-	else
-		quot = s3c24xx_serial_getclk(port, &clksrc, &clk, baud);
+	if (!clk)
+		return;
 
 	/* check to see if we need  to change clock source */
 
-	if (ourport->clksrc != clksrc || ourport->baudclk != clk) {
-		dbg("selecting clock %p\n", clk);
-		s3c24xx_serial_setsource(port, clksrc);
+	if (ourport->baudclk != clk) {
+		s3c24xx_serial_setsource(port, clk_sel);
 
 		if (ourport->baudclk != NULL && !IS_ERR(ourport->baudclk)) {
 			clk_disable(ourport->baudclk);
@@ -773,7 +720,6 @@ static void s3c24xx_serial_set_termios(struct uart_port *port,
 
 		clk_enable(clk);
 
-		ourport->clksrc = clksrc;
 		ourport->baudclk = clk;
 		ourport->baudclk_rate = clk ? clk_get_rate(clk) : 0;
 	}
@@ -1020,16 +966,29 @@ static struct s3c24xx_uart_port s3c24xx_serial_ports[CONFIG_SERIAL_SAMSUNG_UARTS
 
 /* s3c24xx_serial_resetport
  *
- * wrapper to call the specific reset for this port (reset the fifos
- * and the settings)
+ * reset the fifos and other the settings.
 */
 
-static inline int s3c24xx_serial_resetport(struct uart_port *port,
-					   struct s3c2410_uartcfg *cfg)
+static void s3c24xx_serial_resetport(struct uart_port *port,
+				   struct s3c2410_uartcfg *cfg)
 {
 	struct s3c24xx_uart_info *info = s3c24xx_port_to_info(port);
+	unsigned long ucon = rd_regl(port, S3C2410_UCON);
+	unsigned int ucon_mask;
+
+	ucon_mask = info->clksel_mask;
+	if (info->type == PORT_S3C2440)
+		ucon_mask |= S3C2440_UCON0_DIVMASK;
 
-	return (info->reset_port)(port, cfg);
+	ucon &= ucon_mask;
+	wr_regl(port, S3C2410_UCON,  ucon | cfg->ucon);
+
+	/* reset both fifos */
+	wr_regl(port, S3C2410_UFCON, cfg->ufcon | S3C2410_UFCON_RESETBOTH);
+	wr_regl(port, S3C2410_UFCON, cfg->ufcon);
+
+	/* some delay is required after fifo reset */
+	udelay(1);
 }
 
 
@@ -1121,11 +1080,10 @@ static inline void s3c24xx_serial_cpufreq_deregister(struct s3c24xx_uart_port *p
  */
 
 static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport,
-				    struct s3c24xx_uart_info *info,
 				    struct platform_device *platdev)
 {
 	struct uart_port *port = &ourport->port;
-	struct s3c2410_uartcfg *cfg;
+	struct s3c2410_uartcfg *cfg = ourport->cfg;
 	struct resource *res;
 	int ret;
 
@@ -1134,30 +1092,16 @@ static int s3c24xx_serial_init_port(struct s3c24xx_uart_port *ourport,
 	if (platdev == NULL)
 		return -ENODEV;
 
-	cfg = s3c24xx_dev_to_cfg(&platdev->dev);
-
 	if (port->mapbase != 0)
 		return 0;
 
-	if (cfg->hwport > CONFIG_SERIAL_SAMSUNG_UARTS) {
-		printk(KERN_ERR "%s: port %d bigger than %d\n", __func__,
-		       cfg->hwport, CONFIG_SERIAL_SAMSUNG_UARTS);
-		return -ERANGE;
-	}
-
 	/* setup info for port */
 	port->dev	= &platdev->dev;
-	ourport->info	= info;
 
 	/* Startup sequence is different for s3c64xx and higher SoC's */
 	if (s3c24xx_serial_has_interrupt_mask(port))
 		s3c24xx_serial_ops.startup = s3c64xx_serial_startup;
 
-	/* copy the info in from provided structure */
-	ourport->port.fifosize = info->fifosize;
-
-	dbg("s3c24xx_serial_init_port: %p (hw %d)...\n", port, cfg->hwport);
-
 	port->uartclk = 1;
 
 	if (cfg->uart_flags & UPF_CONS_FLOW) {
@@ -1215,43 +1159,74 @@ static ssize_t s3c24xx_serial_show_clksrc(struct device *dev,
 	struct uart_port *port = s3c24xx_dev_to_port(dev);
 	struct s3c24xx_uart_port *ourport = to_ourport(port);
 
-	return snprintf(buf, PAGE_SIZE, "* %s\n", ourport->clksrc->name);
+	return snprintf(buf, PAGE_SIZE, "* %s\n", ourport->baudclk->name);
 }
 
 static DEVICE_ATTR(clock_source, S_IRUGO, s3c24xx_serial_show_clksrc, NULL);
 
+
 /* Device driver serial port probe */
 
+static const struct of_device_id s3c24xx_uart_dt_match[];
 static int probe_index;
 
-int s3c24xx_serial_probe(struct platform_device *dev,
-			 struct s3c24xx_uart_info *info)
+static inline struct s3c24xx_serial_drv_data *s3c24xx_get_driver_data(
+			struct platform_device *pdev)
+{
+#ifdef CONFIG_OF
+	if (pdev->dev.of_node) {
+		const struct of_device_id *match;
+		match = of_match_node(s3c24xx_uart_dt_match, pdev->dev.of_node);
+		return (struct s3c24xx_serial_drv_data *)match->data;
+	}
+#endif
+	return (struct s3c24xx_serial_drv_data *)
+			platform_get_device_id(pdev)->driver_data;
+}
+
+static int s3c24xx_serial_probe(struct platform_device *pdev)
 {
 	struct s3c24xx_uart_port *ourport;
 	int ret;
 
-	dbg("s3c24xx_serial_probe(%p, %p) %d\n", dev, info, probe_index);
+	dbg("s3c24xx_serial_probe(%p) %d\n", pdev, probe_index);
 
 	ourport = &s3c24xx_serial_ports[probe_index];
+
+	ourport->drv_data = s3c24xx_get_driver_data(pdev);
+	if (!ourport->drv_data) {
+		dev_err(&pdev->dev, "could not find driver data\n");
+		return -ENODEV;
+	}
+
+	ourport->info = ourport->drv_data->info;
+	ourport->cfg = (pdev->dev.platform_data) ?
+			(struct s3c2410_uartcfg *)pdev->dev.platform_data :
+			ourport->drv_data->def_cfg;
+
+	ourport->port.fifosize = (ourport->info->fifosize) ?
+		ourport->info->fifosize :
+		ourport->drv_data->fifosize[probe_index];
+
 	probe_index++;
 
 	dbg("%s: initialising port %p...\n", __func__, ourport);
 
-	ret = s3c24xx_serial_init_port(ourport, info, dev);
+	ret = s3c24xx_serial_init_port(ourport, pdev);
 	if (ret < 0)
 		goto probe_err;
 
 	dbg("%s: adding port\n", __func__);
 	uart_add_one_port(&s3c24xx_uart_drv, &ourport->port);
-	platform_set_drvdata(dev, &ourport->port);
+	platform_set_drvdata(pdev, &ourport->port);
 
-	ret = device_create_file(&dev->dev, &dev_attr_clock_source);
+	ret = device_create_file(&pdev->dev, &dev_attr_clock_source);
 	if (ret < 0)
-		printk(KERN_ERR "%s: failed to add clksrc attr.\n", __func__);
+		dev_err(&pdev->dev, "failed to add clock source attr.\n");
 
 	ret = s3c24xx_serial_cpufreq_register(ourport);
 	if (ret < 0)
-		dev_err(&dev->dev, "failed to add cpufreq notifier\n");
+		dev_err(&pdev->dev, "failed to add cpufreq notifier\n");
 
 	return 0;
 
@@ -1259,9 +1234,7 @@ int s3c24xx_serial_probe(struct platform_device *dev,
 	return ret;
 }
 
-EXPORT_SYMBOL_GPL(s3c24xx_serial_probe);
-
-int __devexit s3c24xx_serial_remove(struct platform_device *dev)
+static int __devexit s3c24xx_serial_remove(struct platform_device *dev)
 {
 	struct uart_port *port = s3c24xx_dev_to_port(&dev->dev);
 
@@ -1274,8 +1247,6 @@ int __devexit s3c24xx_serial_remove(struct platform_device *dev)
 	return 0;
 }
 
-EXPORT_SYMBOL_GPL(s3c24xx_serial_remove);
-
 /* UART power management code */
 #ifdef CONFIG_PM_SLEEP
 static int s3c24xx_serial_suspend(struct device *dev)
@@ -1315,41 +1286,6 @@ static const struct dev_pm_ops s3c24xx_serial_pm_ops = {
 #define SERIAL_SAMSUNG_PM_OPS	NULL
 #endif /* CONFIG_PM_SLEEP */
 
-int s3c24xx_serial_init(struct platform_driver *drv,
-			struct s3c24xx_uart_info *info)
-{
-	dbg("s3c24xx_serial_init(%p,%p)\n", drv, info);
-
-	drv->driver.pm = SERIAL_SAMSUNG_PM_OPS;
-
-	return platform_driver_register(drv);
-}
-
-EXPORT_SYMBOL_GPL(s3c24xx_serial_init);
-
-/* module initialisation code */
-
-static int __init s3c24xx_serial_modinit(void)
-{
-	int ret;
-
-	ret = uart_register_driver(&s3c24xx_uart_drv);
-	if (ret < 0) {
-		printk(KERN_ERR "failed to register UART driver\n");
-		return -1;
-	}
-
-	return 0;
-}
-
-static void __exit s3c24xx_serial_modexit(void)
-{
-	uart_unregister_driver(&s3c24xx_uart_drv);
-}
-
-module_init(s3c24xx_serial_modinit);
-module_exit(s3c24xx_serial_modexit);
-
 /* Console code */
 
 #ifdef CONFIG_SERIAL_SAMSUNG_CONSOLE
@@ -1395,12 +1331,13 @@ static void __init
 s3c24xx_serial_get_options(struct uart_port *port, int *baud,
 			   int *parity, int *bits)
 {
-	struct s3c24xx_uart_clksrc clksrc;
 	struct clk *clk;
 	unsigned int ulcon;
 	unsigned int ucon;
 	unsigned int ubrdiv;
 	unsigned long rate;
+	unsigned int clk_sel;
+	char clk_name[MAX_CLK_NAME_LENGTH];
 
 	ulcon  = rd_regl(port, S3C2410_ULCON);
 	ucon   = rd_regl(port, S3C2410_UCON);
@@ -1445,44 +1382,21 @@ s3c24xx_serial_get_options(struct uart_port *port, int *baud,
 
 		/* now calculate the baud rate */
 
-		s3c24xx_serial_getsource(port, &clksrc);
+		clk_sel = s3c24xx_serial_getsource(port);
+		sprintf(clk_name, "clk_uart_baud%d", clk_sel);
 
-		clk = clk_get(port->dev, clksrc.name);
+		clk = clk_get(port->dev, clk_name);
 		if (!IS_ERR(clk) && clk != NULL)
-			rate = clk_get_rate(clk) / clksrc.divisor;
+			rate = clk_get_rate(clk);
 		else
 			rate = 1;
 
-
 		*baud = rate / (16 * (ubrdiv + 1));
 		dbg("calculated baud %d\n", *baud);
 	}
 
 }
 
-/* s3c24xx_serial_init_ports
- *
- * initialise the serial ports from the machine provided initialisation
- * data.
-*/
-
-static int s3c24xx_serial_init_ports(struct s3c24xx_uart_info **info)
-{
-	struct s3c24xx_uart_port *ptr = s3c24xx_serial_ports;
-	struct platform_device **platdev_ptr;
-	int i;
-
-	dbg("s3c24xx_serial_init_ports: initialising ports...\n");
-
-	platdev_ptr = s3c24xx_uart_devs;
-
-	for (i = 0; i < CONFIG_SERIAL_SAMSUNG_UARTS; i++, ptr++, platdev_ptr++) {
-		s3c24xx_serial_init_port(ptr, info[i], *platdev_ptr);
-	}
-
-	return 0;
-}
-
 static int __init
 s3c24xx_serial_console_setup(struct console *co, char *options)
 {
@@ -1526,11 +1440,6 @@ s3c24xx_serial_console_setup(struct console *co, char *options)
 	return uart_set_options(port, co, baud, parity, bits, flow);
 }
 
-/* s3c24xx_serial_initconsole
- *
- * initialise the console from one of the uart drivers
-*/
-
 static struct console s3c24xx_serial_console = {
 	.name		= S3C24XX_SERIAL_NAME,
 	.device		= uart_console_device,
@@ -1540,34 +1449,250 @@ static struct console s3c24xx_serial_console = {
 	.setup		= s3c24xx_serial_console_setup,
 	.data		= &s3c24xx_uart_drv,
 };
+#endif /* CONFIG_SERIAL_SAMSUNG_CONSOLE */
 
-int s3c24xx_serial_initconsole(struct platform_driver *drv,
-			       struct s3c24xx_uart_info **info)
+#ifdef CONFIG_CPU_S3C2410
+static struct s3c24xx_serial_drv_data s3c2410_serial_drv_data = {
+	.info = &(struct s3c24xx_uart_info) {
+		.name		= "Samsung S3C2410 UART",
+		.type		= PORT_S3C2410,
+		.fifosize	= 16,
+		.rx_fifomask	= S3C2410_UFSTAT_RXMASK,
+		.rx_fifoshift	= S3C2410_UFSTAT_RXSHIFT,
+		.rx_fifofull	= S3C2410_UFSTAT_RXFULL,
+		.tx_fifofull	= S3C2410_UFSTAT_TXFULL,
+		.tx_fifomask	= S3C2410_UFSTAT_TXMASK,
+		.tx_fifoshift	= S3C2410_UFSTAT_TXSHIFT,
+		.def_clk_sel	= S3C2410_UCON_CLKSEL0,
+		.num_clks	= 2,
+		.clksel_mask	= S3C2410_UCON_CLKMASK,
+		.clksel_shift	= S3C2410_UCON_CLKSHIFT,
+	},
+	.def_cfg = &(struct s3c2410_uartcfg) {
+		.ucon		= S3C2410_UCON_DEFAULT,
+		.ufcon		= S3C2410_UFCON_DEFAULT,
+	},
+};
+#define S3C2410_SERIAL_DRV_DATA ((kernel_ulong_t)&s3c2410_serial_drv_data)
+#else
+#define S3C2410_SERIAL_DRV_DATA (kernel_ulong_t)NULL
+#endif
 
-{
-	struct platform_device *dev = s3c24xx_uart_devs[0];
+#ifdef CONFIG_CPU_S3C2412
+static struct s3c24xx_serial_drv_data s3c2412_serial_drv_data = {
+	.info = &(struct s3c24xx_uart_info) {
+		.name		= "Samsung S3C2412 UART",
+		.type		= PORT_S3C2412,
+		.fifosize	= 64,
+		.has_divslot	= 1,
+		.rx_fifomask	= S3C2440_UFSTAT_RXMASK,
+		.rx_fifoshift	= S3C2440_UFSTAT_RXSHIFT,
+		.rx_fifofull	= S3C2440_UFSTAT_RXFULL,
+		.tx_fifofull	= S3C2440_UFSTAT_TXFULL,
+		.tx_fifomask	= S3C2440_UFSTAT_TXMASK,
+		.tx_fifoshift	= S3C2440_UFSTAT_TXSHIFT,
+		.def_clk_sel	= S3C2410_UCON_CLKSEL2,
+		.num_clks	= 4,
+		.clksel_mask	= S3C2412_UCON_CLKMASK,
+		.clksel_shift	= S3C2412_UCON_CLKSHIFT,
+	},
+	.def_cfg = &(struct s3c2410_uartcfg) {
+		.ucon		= S3C2410_UCON_DEFAULT,
+		.ufcon		= S3C2410_UFCON_DEFAULT,
+	},
+};
+#define S3C2412_SERIAL_DRV_DATA ((kernel_ulong_t)&s3c2412_serial_drv_data)
+#else
+#define S3C2412_SERIAL_DRV_DATA (kernel_ulong_t)NULL
+#endif
 
-	dbg("s3c24xx_serial_initconsole\n");
+#if defined(CONFIG_CPU_S3C2440) || defined(CONFIG_CPU_S3C2416) || \
+	defined(CONFIG_CPU_S3C2443)
+static struct s3c24xx_serial_drv_data s3c2440_serial_drv_data = {
+	.info = &(struct s3c24xx_uart_info) {
+		.name		= "Samsung S3C2440 UART",
+		.type		= PORT_S3C2440,
+		.fifosize	= 64,
+		.has_divslot	= 1,
+		.rx_fifomask	= S3C2440_UFSTAT_RXMASK,
+		.rx_fifoshift	= S3C2440_UFSTAT_RXSHIFT,
+		.rx_fifofull	= S3C2440_UFSTAT_RXFULL,
+		.tx_fifofull	= S3C2440_UFSTAT_TXFULL,
+		.tx_fifomask	= S3C2440_UFSTAT_TXMASK,
+		.tx_fifoshift	= S3C2440_UFSTAT_TXSHIFT,
+		.def_clk_sel	= S3C2410_UCON_CLKSEL2,
+		.num_clks	= 4,
+		.clksel_mask	= S3C2412_UCON_CLKMASK,
+		.clksel_shift	= S3C2412_UCON_CLKSHIFT,
+	},
+	.def_cfg = &(struct s3c2410_uartcfg) {
+		.ucon		= S3C2410_UCON_DEFAULT,
+		.ufcon		= S3C2410_UFCON_DEFAULT,
+	},
+};
+#define S3C2440_SERIAL_DRV_DATA ((kernel_ulong_t)&s3c2440_serial_drv_data)
+#else
+#define S3C2440_SERIAL_DRV_DATA (kernel_ulong_t)NULL
+#endif
 
-	/* select driver based on the cpu */
+#if defined(CONFIG_CPU_S3C6400) || defined(CONFIG_CPU_S3C6410) || \
+	defined(CONFIG_CPU_S5P6440) || defined(CONFIG_CPU_S5P6450) || \
+	defined(CONFIG_CPU_S5PC100)
+static struct s3c24xx_serial_drv_data s3c6400_serial_drv_data = {
+	.info = &(struct s3c24xx_uart_info) {
+		.name		= "Samsung S3C6400 UART",
+		.type		= PORT_S3C6400,
+		.fifosize	= 64,
+		.has_divslot	= 1,
+		.rx_fifomask	= S3C2440_UFSTAT_RXMASK,
+		.rx_fifoshift	= S3C2440_UFSTAT_RXSHIFT,
+		.rx_fifofull	= S3C2440_UFSTAT_RXFULL,
+		.tx_fifofull	= S3C2440_UFSTAT_TXFULL,
+		.tx_fifomask	= S3C2440_UFSTAT_TXMASK,
+		.tx_fifoshift	= S3C2440_UFSTAT_TXSHIFT,
+		.def_clk_sel	= S3C2410_UCON_CLKSEL2,
+		.num_clks	= 4,
+		.clksel_mask	= S3C6400_UCON_CLKMASK,
+		.clksel_shift	= S3C6400_UCON_CLKSHIFT,
+	},
+	.def_cfg = &(struct s3c2410_uartcfg) {
+		.ucon		= S3C2410_UCON_DEFAULT,
+		.ufcon		= S3C2410_UFCON_DEFAULT,
+	},
+};
+#define S3C6400_SERIAL_DRV_DATA ((kernel_ulong_t)&s3c6400_serial_drv_data)
+#else
+#define S3C6400_SERIAL_DRV_DATA (kernel_ulong_t)NULL
+#endif
 
-	if (dev == NULL) {
-		printk(KERN_ERR "s3c24xx: no devices for console init\n");
-		return 0;
-	}
+#ifdef CONFIG_CPU_S5PV210
+static struct s3c24xx_serial_drv_data s5pv210_serial_drv_data = {
+	.info = &(struct s3c24xx_uart_info) {
+		.name		= "Samsung S5PV210 UART",
+		.type		= PORT_S3C6400,
+		.has_divslot	= 1,
+		.rx_fifomask	= S5PV210_UFSTAT_RXMASK,
+		.rx_fifoshift	= S5PV210_UFSTAT_RXSHIFT,
+		.rx_fifofull	= S5PV210_UFSTAT_RXFULL,
+		.tx_fifofull	= S5PV210_UFSTAT_TXFULL,
+		.tx_fifomask	= S5PV210_UFSTAT_TXMASK,
+		.tx_fifoshift	= S5PV210_UFSTAT_TXSHIFT,
+		.def_clk_sel	= S3C2410_UCON_CLKSEL0,
+		.num_clks	= 2,
+		.clksel_mask	= S5PV210_UCON_CLKMASK,
+		.clksel_shift	= S5PV210_UCON_CLKSHIFT,
+	},
+	.def_cfg = &(struct s3c2410_uartcfg) {
+		.ucon		= S5PV210_UCON_DEFAULT,
+		.ufcon		= S5PV210_UFCON_DEFAULT,
+	},
+	.fifosize = { 256, 64, 16, 16 },
+};
+#define S5PV210_SERIAL_DRV_DATA ((kernel_ulong_t)&s5pv210_serial_drv_data)
+#else
+#define S5PV210_SERIAL_DRV_DATA	(kernel_ulong_t)NULL
+#endif
 
-	if (strcmp(dev->name, drv->driver.name) != 0)
-		return 0;
+#ifdef CONFIG_CPU_EXYNOS4210
+static struct s3c24xx_serial_drv_data exynos4210_serial_drv_data = {
+	.info = &(struct s3c24xx_uart_info) {
+		.name		= "Samsung Exynos4 UART",
+		.type		= PORT_S3C6400,
+		.has_divslot	= 1,
+		.rx_fifomask	= S5PV210_UFSTAT_RXMASK,
+		.rx_fifoshift	= S5PV210_UFSTAT_RXSHIFT,
+		.rx_fifofull	= S5PV210_UFSTAT_RXFULL,
+		.tx_fifofull	= S5PV210_UFSTAT_TXFULL,
+		.tx_fifomask	= S5PV210_UFSTAT_TXMASK,
+		.tx_fifoshift	= S5PV210_UFSTAT_TXSHIFT,
+		.def_clk_sel	= S3C2410_UCON_CLKSEL0,
+		.num_clks	= 1,
+		.clksel_mask	= 0,
+		.clksel_shift	= 0,
+	},
+	.def_cfg = &(struct s3c2410_uartcfg) {
+		.ucon		= S5PV210_UCON_DEFAULT,
+		.ufcon		= S5PV210_UFCON_DEFAULT,
+		.has_fracval	= 1,
+	},
+	.fifosize = { 256, 64, 16, 16 },
+};
+#define EXYNOS4210_SERIAL_DRV_DATA ((kernel_ulong_t)&exynos4210_serial_drv_data)
+#else
+#define EXYNOS4210_SERIAL_DRV_DATA (kernel_ulong_t)NULL
+#endif
 
-	s3c24xx_serial_console.data = &s3c24xx_uart_drv;
-	s3c24xx_serial_init_ports(info);
+static struct platform_device_id s3c24xx_serial_driver_ids[] = {
+	{
+		.name		= "s3c2410-uart",
+		.driver_data	= S3C2410_SERIAL_DRV_DATA,
+	}, {
+		.name		= "s3c2412-uart",
+		.driver_data	= S3C2412_SERIAL_DRV_DATA,
+	}, {
+		.name		= "s3c2440-uart",
+		.driver_data	= S3C2440_SERIAL_DRV_DATA,
+	}, {
+		.name		= "s3c6400-uart",
+		.driver_data	= S3C6400_SERIAL_DRV_DATA,
+	}, {
+		.name		= "s5pv210-uart",
+		.driver_data	= S5PV210_SERIAL_DRV_DATA,
+	}, {
+		.name		= "exynos4210-uart",
+		.driver_data	= EXYNOS4210_SERIAL_DRV_DATA,
+	},
+	{ },
+};
+MODULE_DEVICE_TABLE(platform, s3c24xx_serial_driver_ids);
 
-	register_console(&s3c24xx_serial_console);
-	return 0;
+#ifdef CONFIG_OF
+static const struct of_device_id s3c24xx_uart_dt_match[] = {
+	{ .compatible = "samsung,exynos4210-uart",
+		.data = (void *)EXYNOS4210_SERIAL_DRV_DATA },
+	{},
+};
+MODULE_DEVICE_TABLE(of, s3c24xx_uart_dt_match);
+#else
+#define s3c24xx_uart_dt_match NULL
+#endif
+
+static struct platform_driver samsung_serial_driver = {
+	.probe		= s3c24xx_serial_probe,
+	.remove		= __devexit_p(s3c24xx_serial_remove),
+	.id_table	= s3c24xx_serial_driver_ids,
+	.driver		= {
+		.name	= "samsung-uart",
+		.owner	= THIS_MODULE,
+		.pm	= SERIAL_SAMSUNG_PM_OPS,
+		.of_match_table	= s3c24xx_uart_dt_match,
+	},
+};
+
+/* module initialisation code */
+
+static int __init s3c24xx_serial_modinit(void)
+{
+	int ret;
+
+	ret = uart_register_driver(&s3c24xx_uart_drv);
+	if (ret < 0) {
+		printk(KERN_ERR "failed to register UART driver\n");
+		return -1;
+	}
+
+	return platform_driver_register(&samsung_serial_driver);
 }
 
-#endif /* CONFIG_SERIAL_SAMSUNG_CONSOLE */
+static void __exit s3c24xx_serial_modexit(void)
+{
+	uart_unregister_driver(&s3c24xx_uart_drv);
+}
+
+module_init(s3c24xx_serial_modinit);
+module_exit(s3c24xx_serial_modexit);
 
+MODULE_ALIAS("platform:samsung-uart");
 MODULE_DESCRIPTION("Samsung SoC Serial port driver");
 MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/tty/serial/samsung.h b/drivers/tty/serial/samsung.h
index 8e87b788e5c6..1a4bca3e4179 100644
--- a/drivers/tty/serial/samsung.h
+++ b/drivers/tty/serial/samsung.h
@@ -19,20 +19,25 @@ struct s3c24xx_uart_info {
 	unsigned long		tx_fifomask;
 	unsigned long		tx_fifoshift;
 	unsigned long		tx_fifofull;
+	unsigned int		def_clk_sel;
+	unsigned long		num_clks;
+	unsigned long		clksel_mask;
+	unsigned long		clksel_shift;
 
 	/* uart port features */
 
 	unsigned int		has_divslot:1;
 
-	/* clock source control */
-
-	int (*get_clksrc)(struct uart_port *, struct s3c24xx_uart_clksrc *clk);
-	int (*set_clksrc)(struct uart_port *, struct s3c24xx_uart_clksrc *clk);
-
 	/* uart controls */
 	int (*reset_port)(struct uart_port *, struct s3c2410_uartcfg *);
 };
 
+struct s3c24xx_serial_drv_data {
+	struct s3c24xx_uart_info	*info;
+	struct s3c2410_uartcfg		*def_cfg;
+	unsigned int			fifosize[CONFIG_SERIAL_SAMSUNG_UARTS];
+};
+
 struct s3c24xx_uart_port {
 	unsigned char			rx_claimed;
 	unsigned char			tx_claimed;
@@ -43,10 +48,13 @@ struct s3c24xx_uart_port {
 	unsigned int			tx_irq;
 
 	struct s3c24xx_uart_info	*info;
-	struct s3c24xx_uart_clksrc	*clksrc;
 	struct clk			*clk;
 	struct clk			*baudclk;
 	struct uart_port		port;
+	struct s3c24xx_serial_drv_data	*drv_data;
+
+	/* reference to platform data */
+	struct s3c2410_uartcfg		*cfg;
 
 #ifdef CONFIG_CPU_FREQ
 	struct notifier_block		freq_transition;
@@ -56,7 +64,6 @@ struct s3c24xx_uart_port {
 /* conversion functions */
 
 #define s3c24xx_dev_to_port(__dev) (struct uart_port *)dev_get_drvdata(__dev)
-#define s3c24xx_dev_to_cfg(__dev) (struct s3c2410_uartcfg *)((__dev)->platform_data)
 
 /* register access controls */
 
@@ -69,17 +76,6 @@ struct s3c24xx_uart_port {
 #define wr_regb(port, reg, val) __raw_writeb(val, portaddr(port, reg))
 #define wr_regl(port, reg, val) __raw_writel(val, portaddr(port, reg))
 
-extern int s3c24xx_serial_probe(struct platform_device *dev,
-				struct s3c24xx_uart_info *uart);
-
-extern int __devexit s3c24xx_serial_remove(struct platform_device *dev);
-
-extern int s3c24xx_serial_initconsole(struct platform_driver *drv,
-				      struct s3c24xx_uart_info **uart);
-
-extern int s3c24xx_serial_init(struct platform_driver *drv,
-			       struct s3c24xx_uart_info *info);
-
 #ifdef CONFIG_SERIAL_SAMSUNG_DEBUG
 
 extern void printascii(const char *);
diff --git a/drivers/tty/serial/sc26xx.c b/drivers/tty/serial/sc26xx.c
index 75038ad2b242..e0b4b0a30a5a 100644
--- a/drivers/tty/serial/sc26xx.c
+++ b/drivers/tty/serial/sc26xx.c
@@ -736,19 +736,7 @@ static struct platform_driver sc26xx_driver = {
 	},
 };
 
-static int __init sc26xx_init(void)
-{
-	return platform_driver_register(&sc26xx_driver);
-}
-
-static void __exit sc26xx_exit(void)
-{
-	platform_driver_unregister(&sc26xx_driver);
-}
-
-module_init(sc26xx_init);
-module_exit(sc26xx_exit);
-
+module_platform_driver(sc26xx_driver);
 
 MODULE_AUTHOR("Thomas Bogendörfer");
 MODULE_DESCRIPTION("SC681/SC2692 serial driver");
diff --git a/drivers/tty/serial/serial_core.c b/drivers/tty/serial/serial_core.c
index 0406d7ff505e..c7bf31a6a7e7 100644
--- a/drivers/tty/serial/serial_core.c
+++ b/drivers/tty/serial/serial_core.c
@@ -22,6 +22,7 @@
  */
 #include <linux/module.h>
 #include <linux/tty.h>
+#include <linux/tty_flip.h>
 #include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/console.h>
@@ -60,6 +61,8 @@ static void uart_change_speed(struct tty_struct *tty, struct uart_state *state,
 static void uart_wait_until_sent(struct tty_struct *tty, int timeout);
 static void uart_change_pm(struct uart_state *state, int pm_state);
 
+static void uart_port_shutdown(struct tty_port *port);
+
 /*
  * This routine is used by the interrupt handler to schedule processing in
  * the software interrupt portion of the driver.
@@ -128,25 +131,16 @@ uart_update_mctrl(struct uart_port *port, unsigned int set, unsigned int clear)
  * Startup the port.  This will be called once per open.  All calls
  * will be serialised by the per-port mutex.
  */
-static int uart_startup(struct tty_struct *tty, struct uart_state *state, int init_hw)
+static int uart_port_startup(struct tty_struct *tty, struct uart_state *state,
+		int init_hw)
 {
 	struct uart_port *uport = state->uart_port;
 	struct tty_port *port = &state->port;
 	unsigned long page;
 	int retval = 0;
 
-	if (port->flags & ASYNC_INITIALIZED)
-		return 0;
-
-	/*
-	 * Set the TTY IO error marker - we will only clear this
-	 * once we have successfully opened the port.  Also set
-	 * up the tty->alt_speed kludge
-	 */
-	set_bit(TTY_IO_ERROR, &tty->flags);
-
 	if (uport->type == PORT_UNKNOWN)
-		return 0;
+		return 1;
 
 	/*
 	 * Initialise and allocate the transmit and temporary
@@ -188,10 +182,6 @@ static int uart_startup(struct tty_struct *tty, struct uart_state *state, int in
 				tty->hw_stopped = 1;
 			spin_unlock_irq(&uport->lock);
 		}
-
-		set_bit(ASYNCB_INITIALIZED, &port->flags);
-
-		clear_bit(TTY_IO_ERROR, &tty->flags);
 	}
 
 	/*
@@ -200,6 +190,31 @@ static int uart_startup(struct tty_struct *tty, struct uart_state *state, int in
 	 * now.
 	 */
 	if (retval && capable(CAP_SYS_ADMIN))
+		return 1;
+
+	return retval;
+}
+
+static int uart_startup(struct tty_struct *tty, struct uart_state *state,
+		int init_hw)
+{
+	struct tty_port *port = &state->port;
+	int retval;
+
+	if (port->flags & ASYNC_INITIALIZED)
+		return 0;
+
+	/*
+	 * Set the TTY IO error marker - we will only clear this
+	 * once we have successfully opened the port.
+	 */
+	set_bit(TTY_IO_ERROR, &tty->flags);
+
+	retval = uart_port_startup(tty, state, init_hw);
+	if (!retval) {
+		set_bit(ASYNCB_INITIALIZED, &port->flags);
+		clear_bit(TTY_IO_ERROR, &tty->flags);
+	} else if (retval > 0)
 		retval = 0;
 
 	return retval;
@@ -228,24 +243,7 @@ static void uart_shutdown(struct tty_struct *tty, struct uart_state *state)
 		if (!tty || (tty->termios->c_cflag & HUPCL))
 			uart_clear_mctrl(uport, TIOCM_DTR | TIOCM_RTS);
 
-		/*
-		 * clear delta_msr_wait queue to avoid mem leaks: we may free
-		 * the irq here so the queue might never be woken up.  Note
-		 * that we won't end up waiting on delta_msr_wait again since
-		 * any outstanding file descriptors should be pointing at
-		 * hung_up_tty_fops now.
-		 */
-		wake_up_interruptible(&port->delta_msr_wait);
-
-		/*
-		 * Free the IRQ and disable the port.
-		 */
-		uport->ops->shutdown(uport);
-
-		/*
-		 * Ensure that the IRQ handler isn't running on another CPU.
-		 */
-		synchronize_irq(uport->irq);
+		uart_port_shutdown(port);
 	}
 
 	/*
@@ -423,7 +421,7 @@ uart_get_divisor(struct uart_port *port, unsigned int baud)
 	if (baud == 38400 && (port->flags & UPF_SPD_MASK) == UPF_SPD_CUST)
 		quot = port->custom_divisor;
 	else
-		quot = (port->uartclk + (8 * baud)) / (16 * baud);
+		quot = DIV_ROUND_CLOSEST(port->uartclk, 16 * baud);
 
 	return quot;
 }
@@ -658,10 +656,10 @@ static int uart_get_info(struct uart_state *state,
 	tmp.flags	    = uport->flags;
 	tmp.xmit_fifo_size  = uport->fifosize;
 	tmp.baud_base	    = uport->uartclk / 16;
-	tmp.close_delay	    = port->close_delay / 10;
+	tmp.close_delay	    = jiffies_to_msecs(port->close_delay) / 10;
 	tmp.closing_wait    = port->closing_wait == ASYNC_CLOSING_WAIT_NONE ?
 				ASYNC_CLOSING_WAIT_NONE :
-				port->closing_wait / 10;
+				jiffies_to_msecs(port->closing_wait) / 10;
 	tmp.custom_divisor  = uport->custom_divisor;
 	tmp.hub6	    = uport->hub6;
 	tmp.io_type         = uport->iotype;
@@ -695,9 +693,10 @@ static int uart_set_info(struct tty_struct *tty, struct uart_state *state,
 		new_port += (unsigned long) new_serial.port_high << HIGH_BITS_OFFSET;
 
 	new_serial.irq = irq_canonicalize(new_serial.irq);
-	close_delay = new_serial.close_delay * 10;
+	close_delay = msecs_to_jiffies(new_serial.close_delay * 10);
 	closing_wait = new_serial.closing_wait == ASYNC_CLOSING_WAIT_NONE ?
-			ASYNC_CLOSING_WAIT_NONE : new_serial.closing_wait * 10;
+			ASYNC_CLOSING_WAIT_NONE :
+			msecs_to_jiffies(new_serial.closing_wait * 10);
 
 	/*
 	 * This semaphore protects port->count.  It is also
@@ -1265,47 +1264,8 @@ static void uart_close(struct tty_struct *tty, struct file *filp)
 
 	pr_debug("uart_close(%d) called\n", uport->line);
 
-	spin_lock_irqsave(&port->lock, flags);
-
-	if (tty_hung_up_p(filp)) {
-		spin_unlock_irqrestore(&port->lock, flags);
+	if (tty_port_close_start(port, tty, filp) == 0)
 		return;
-	}
-
-	if ((tty->count == 1) && (port->count != 1)) {
-		/*
-		 * Uh, oh.  tty->count is 1, which means that the tty
-		 * structure will be freed.  port->count should always
-		 * be one in these conditions.  If it's greater than
-		 * one, we've got real problems, since it means the
-		 * serial port won't be shutdown.
-		 */
-		printk(KERN_ERR "uart_close: bad serial port count; tty->count is 1, "
-		       "port->count is %d\n", port->count);
-		port->count = 1;
-	}
-	if (--port->count < 0) {
-		printk(KERN_ERR "uart_close: bad serial port count for %s: %d\n",
-		       tty->name, port->count);
-		port->count = 0;
-	}
-	if (port->count) {
-		spin_unlock_irqrestore(&port->lock, flags);
-		return;
-	}
-
-	/*
-	 * Now we wait for the transmit buffer to clear; and we notify
-	 * the line discipline to only process XON/XOFF characters by
-	 * setting tty->closing.
-	 */
-	set_bit(ASYNCB_CLOSING, &port->flags);
-	tty->closing = 1;
-	spin_unlock_irqrestore(&port->lock, flags);
-
-	if (port->closing_wait != ASYNC_CLOSING_WAIT_NONE)
-		tty_wait_until_sent_from_close(tty,
-				msecs_to_jiffies(port->closing_wait));
 
 	/*
 	 * At this point, we stop accepting input.  To do this, we
@@ -1337,7 +1297,8 @@ static void uart_close(struct tty_struct *tty, struct file *filp)
 	if (port->blocked_open) {
 		spin_unlock_irqrestore(&port->lock, flags);
 		if (port->close_delay)
-			msleep_interruptible(port->close_delay);
+			msleep_interruptible(
+					jiffies_to_msecs(port->close_delay));
 		spin_lock_irqsave(&port->lock, flags);
 	} else if (!uart_console(uport)) {
 		spin_unlock_irqrestore(&port->lock, flags);
@@ -1441,6 +1402,36 @@ static void uart_hangup(struct tty_struct *tty)
 	mutex_unlock(&port->mutex);
 }
 
+static int uart_port_activate(struct tty_port *port, struct tty_struct *tty)
+{
+	return 0;
+}
+
+static void uart_port_shutdown(struct tty_port *port)
+{
+	struct uart_state *state = container_of(port, struct uart_state, port);
+	struct uart_port *uport = state->uart_port;
+
+	/*
+	 * clear delta_msr_wait queue to avoid mem leaks: we may free
+	 * the irq here so the queue might never be woken up.  Note
+	 * that we won't end up waiting on delta_msr_wait again since
+	 * any outstanding file descriptors should be pointing at
+	 * hung_up_tty_fops now.
+	 */
+	wake_up_interruptible(&port->delta_msr_wait);
+
+	/*
+	 * Free the IRQ and disable the port.
+	 */
+	uport->ops->shutdown(uport);
+
+	/*
+	 * Ensure that the IRQ handler isn't running on another CPU.
+	 */
+	synchronize_irq(uport->irq);
+}
+
 static int uart_carrier_raised(struct tty_port *port)
 {
 	struct uart_state *state = container_of(port, struct uart_state, port);
@@ -1466,33 +1457,6 @@ static void uart_dtr_rts(struct tty_port *port, int onoff)
 		uart_clear_mctrl(uport, TIOCM_DTR | TIOCM_RTS);
 }
 
-static struct uart_state *uart_get(struct uart_driver *drv, int line)
-{
-	struct uart_state *state;
-	struct tty_port *port;
-	int ret = 0;
-
-	state = drv->state + line;
-	port = &state->port;
-	if (mutex_lock_interruptible(&port->mutex)) {
-		ret = -ERESTARTSYS;
-		goto err;
-	}
-
-	port->count++;
-	if (!state->uart_port || state->uart_port->flags & UPF_DEAD) {
-		ret = -ENXIO;
-		goto err_unlock;
-	}
-	return state;
-
- err_unlock:
-	port->count--;
-	mutex_unlock(&port->mutex);
- err:
-	return ERR_PTR(ret);
-}
-
 /*
  * calls to uart_open are serialised by the BKL in
  *   fs/char_dev.c:chrdev_open()
@@ -1506,26 +1470,29 @@ static struct uart_state *uart_get(struct uart_driver *drv, int line)
 static int uart_open(struct tty_struct *tty, struct file *filp)
 {
 	struct uart_driver *drv = (struct uart_driver *)tty->driver->driver_state;
-	struct uart_state *state;
-	struct tty_port *port;
 	int retval, line = tty->index;
+	struct uart_state *state = drv->state + line;
+	struct tty_port *port = &state->port;
 
 	pr_debug("uart_open(%d) called\n", line);
 
 	/*
-	 * We take the semaphore inside uart_get to guarantee that we won't
-	 * be re-entered while allocating the state structure, or while we
-	 * request any IRQs that the driver may need.  This also has the nice
-	 * side-effect that it delays the action of uart_hangup, so we can
-	 * guarantee that state->port.tty will always contain something
-	 * reasonable.
+	 * We take the semaphore here to guarantee that we won't be re-entered
+	 * while allocating the state structure, or while we request any IRQs
+	 * that the driver may need.  This also has the nice side-effect that
+	 * it delays the action of uart_hangup, so we can guarantee that
+	 * state->port.tty will always contain something reasonable.
 	 */
-	state = uart_get(drv, line);
-	if (IS_ERR(state)) {
-		retval = PTR_ERR(state);
-		goto fail;
+	if (mutex_lock_interruptible(&port->mutex)) {
+		retval = -ERESTARTSYS;
+		goto end;
+	}
+
+	port->count++;
+	if (!state->uart_port || state->uart_port->flags & UPF_DEAD) {
+		retval = -ENXIO;
+		goto err_dec_count;
 	}
-	port = &state->port;
 
 	/*
 	 * Once we set tty->driver_data here, we are guaranteed that
@@ -1535,7 +1502,6 @@ static int uart_open(struct tty_struct *tty, struct file *filp)
 	tty->driver_data = state;
 	state->uart_port->state = state;
 	tty->low_latency = (state->uart_port->flags & UPF_LOW_LATENCY) ? 1 : 0;
-	tty->alt_speed = 0;
 	tty_port_tty_set(port, tty);
 
 	/*
@@ -1543,9 +1509,7 @@ static int uart_open(struct tty_struct *tty, struct file *filp)
 	 */
 	if (tty_hung_up_p(filp)) {
 		retval = -EAGAIN;
-		port->count--;
-		mutex_unlock(&port->mutex);
-		goto fail;
+		goto err_dec_count;
 	}
 
 	/*
@@ -1566,8 +1530,12 @@ static int uart_open(struct tty_struct *tty, struct file *filp)
 	if (retval == 0)
 		retval = tty_port_block_til_ready(port, tty, filp);
 
-fail:
+end:
 	return retval;
+err_dec_count:
+	port->count--;
+	mutex_unlock(&port->mutex);
+	goto end;
 }
 
 static const char *uart_type(struct uart_port *port)
@@ -1858,6 +1826,14 @@ uart_set_options(struct uart_port *port, struct console *co,
 EXPORT_SYMBOL_GPL(uart_set_options);
 #endif /* CONFIG_SERIAL_CORE_CONSOLE */
 
+/**
+ * uart_change_pm - set power state of the port
+ *
+ * @state: port descriptor
+ * @pm_state: new state
+ *
+ * Locking: port->mutex has to be held
+ */
 static void uart_change_pm(struct uart_state *state, int pm_state)
 {
 	struct uart_port *port = state->uart_port;
@@ -2214,6 +2190,8 @@ static const struct tty_operations uart_ops = {
 };
 
 static const struct tty_port_operations uart_port_ops = {
+	.activate	= uart_port_activate,
+	.shutdown	= uart_port_shutdown,
 	.carrier_raised = uart_carrier_raised,
 	.dtr_rts	= uart_dtr_rts,
 };
@@ -2275,8 +2253,8 @@ int uart_register_driver(struct uart_driver *drv)
 
 		tty_port_init(port);
 		port->ops = &uart_port_ops;
-		port->close_delay     = 500;	/* .5 seconds */
-		port->closing_wait    = 30000;	/* 30 seconds */
+		port->close_delay     = HZ / 2;	/* .5 seconds */
+		port->closing_wait    = 30 * HZ;/* 30 seconds */
 	}
 
 	retval = tty_register_driver(normal);
@@ -2467,6 +2445,99 @@ int uart_match_port(struct uart_port *port1, struct uart_port *port2)
 }
 EXPORT_SYMBOL(uart_match_port);
 
+/**
+ *	uart_handle_dcd_change - handle a change of carrier detect state
+ *	@uport: uart_port structure for the open port
+ *	@status: new carrier detect status, nonzero if active
+ */
+void uart_handle_dcd_change(struct uart_port *uport, unsigned int status)
+{
+	struct uart_state *state = uport->state;
+	struct tty_port *port = &state->port;
+	struct tty_ldisc *ld = tty_ldisc_ref(port->tty);
+	struct pps_event_time ts;
+
+	if (ld && ld->ops->dcd_change)
+		pps_get_ts(&ts);
+
+	uport->icount.dcd++;
+#ifdef CONFIG_HARD_PPS
+	if ((uport->flags & UPF_HARDPPS_CD) && status)
+		hardpps();
+#endif
+
+	if (port->flags & ASYNC_CHECK_CD) {
+		if (status)
+			wake_up_interruptible(&port->open_wait);
+		else if (port->tty)
+			tty_hangup(port->tty);
+	}
+
+	if (ld && ld->ops->dcd_change)
+		ld->ops->dcd_change(port->tty, status, &ts);
+	if (ld)
+		tty_ldisc_deref(ld);
+}
+EXPORT_SYMBOL_GPL(uart_handle_dcd_change);
+
+/**
+ *	uart_handle_cts_change - handle a change of clear-to-send state
+ *	@uport: uart_port structure for the open port
+ *	@status: new clear to send status, nonzero if active
+ */
+void uart_handle_cts_change(struct uart_port *uport, unsigned int status)
+{
+	struct tty_port *port = &uport->state->port;
+	struct tty_struct *tty = port->tty;
+
+	uport->icount.cts++;
+
+	if (port->flags & ASYNC_CTS_FLOW) {
+		if (tty->hw_stopped) {
+			if (status) {
+				tty->hw_stopped = 0;
+				uport->ops->start_tx(uport);
+				uart_write_wakeup(uport);
+			}
+		} else {
+			if (!status) {
+				tty->hw_stopped = 1;
+				uport->ops->stop_tx(uport);
+			}
+		}
+	}
+}
+EXPORT_SYMBOL_GPL(uart_handle_cts_change);
+
+/**
+ * uart_insert_char - push a char to the uart layer
+ *
+ * User is responsible to call tty_flip_buffer_push when they are done with
+ * insertion.
+ *
+ * @port: corresponding port
+ * @status: state of the serial port RX buffer (LSR for 8250)
+ * @overrun: mask of overrun bits in @status
+ * @ch: character to push
+ * @flag: flag for the character (see TTY_NORMAL and friends)
+ */
+void uart_insert_char(struct uart_port *port, unsigned int status,
+		 unsigned int overrun, unsigned int ch, unsigned int flag)
+{
+	struct tty_struct *tty = port->state->port.tty;
+
+	if ((status & port->ignore_status_mask & ~overrun) == 0)
+		tty_insert_flip_char(tty, ch, flag);
+
+	/*
+	 * Overrun is special.  Since it's reported immediately,
+	 * it doesn't affect the current character.
+	 */
+	if (status & ~port->ignore_status_mask & overrun)
+		tty_insert_flip_char(tty, 0, TTY_OVERRUN);
+}
+EXPORT_SYMBOL_GPL(uart_insert_char);
+
 EXPORT_SYMBOL(uart_write_wakeup);
 EXPORT_SYMBOL(uart_register_driver);
 EXPORT_SYMBOL(uart_unregister_driver);
diff --git a/drivers/tty/serial/serial_cs.c b/drivers/tty/serial/serial_cs.c
index eef736ff810a..86090605a84e 100644
--- a/drivers/tty/serial/serial_cs.c
+++ b/drivers/tty/serial/serial_cs.c
@@ -317,7 +317,7 @@ static int serial_probe(struct pcmcia_device *link)
 	info->p_dev = link;
 	link->priv = info;
 
-	link->config_flags |= CONF_ENABLE_IRQ;
+	link->config_flags |= CONF_ENABLE_IRQ | CONF_AUTO_SET_IO;
 	if (do_sound)
 		link->config_flags |= CONF_ENABLE_SPKR;
 
@@ -445,7 +445,7 @@ static int simple_config(struct pcmcia_device *link)
 
 	/* First pass: look for a config entry that looks normal.
 	 * Two tries: without IO aliases, then with aliases */
-	link->config_flags |= CONF_AUTO_SET_VPP | CONF_AUTO_SET_IO;
+	link->config_flags |= CONF_AUTO_SET_VPP;
 	for (try = 0; try < 4; try++)
 		if (!pcmcia_loop_config(link, simple_config_check, &try))
 			goto found_port;
@@ -501,7 +501,8 @@ static int multi_config_check_notpicky(struct pcmcia_device *p_dev,
 {
 	int *base2 = priv_data;
 
-	if (!p_dev->resource[0]->end || !p_dev->resource[1]->end)
+	if (!p_dev->resource[0]->end || !p_dev->resource[1]->end ||
+		p_dev->resource[0]->start + 8 != p_dev->resource[1]->start)
 		return -ENODEV;
 
 	p_dev->resource[0]->end = p_dev->resource[1]->end = 8;
@@ -520,7 +521,6 @@ static int multi_config(struct pcmcia_device *link)
 	struct serial_info *info = link->priv;
 	int i, base2 = 0;
 
-	link->config_flags |= CONF_AUTO_SET_IO;
 	/* First, look for a generic full-sized window */
 	if (!pcmcia_loop_config(link, multi_config_check, &info->multi))
 		base2 = link->resource[0]->start + 8;
diff --git a/drivers/tty/serial/sirfsoc_uart.c b/drivers/tty/serial/sirfsoc_uart.c
new file mode 100644
index 000000000000..a60523fee11b
--- /dev/null
+++ b/drivers/tty/serial/sirfsoc_uart.c
@@ -0,0 +1,783 @@
+/*
+ * Driver for CSR SiRFprimaII onboard UARTs.
+ *
+ * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
+ *
+ * Licensed under GPLv2 or later.
+ */
+
+#include <linux/module.h>
+#include <linux/ioport.h>
+#include <linux/platform_device.h>
+#include <linux/init.h>
+#include <linux/sysrq.h>
+#include <linux/console.h>
+#include <linux/tty.h>
+#include <linux/tty_flip.h>
+#include <linux/serial_core.h>
+#include <linux/serial.h>
+#include <linux/clk.h>
+#include <linux/of.h>
+#include <linux/slab.h>
+#include <linux/io.h>
+#include <asm/irq.h>
+#include <asm/mach/irq.h>
+#include <linux/pinctrl/pinmux.h>
+
+#include "sirfsoc_uart.h"
+
+static unsigned int
+sirfsoc_uart_pio_tx_chars(struct sirfsoc_uart_port *sirfport, int count);
+static unsigned int
+sirfsoc_uart_pio_rx_chars(struct uart_port *port, unsigned int max_rx_count);
+static struct uart_driver sirfsoc_uart_drv;
+
+static const struct sirfsoc_baudrate_to_regv baudrate_to_regv[] = {
+	{4000000, 2359296},
+	{3500000, 1310721},
+	{3000000, 1572865},
+	{2500000, 1245186},
+	{2000000, 1572866},
+	{1500000, 1245188},
+	{1152000, 1638404},
+	{1000000, 1572869},
+	{921600, 1114120},
+	{576000, 1245196},
+	{500000, 1245198},
+	{460800, 1572876},
+	{230400, 1310750},
+	{115200, 1310781},
+	{57600, 1310843},
+	{38400, 1114328},
+	{19200, 1114545},
+	{9600, 1114979},
+};
+
+static struct sirfsoc_uart_port sirfsoc_uart_ports[SIRFSOC_UART_NR] = {
+	[0] = {
+		.port = {
+			.iotype		= UPIO_MEM,
+			.flags		= UPF_BOOT_AUTOCONF,
+			.line		= 0,
+		},
+	},
+	[1] = {
+		.port = {
+			.iotype		= UPIO_MEM,
+			.flags		= UPF_BOOT_AUTOCONF,
+			.line		= 1,
+		},
+	},
+	[2] = {
+		.port = {
+			.iotype		= UPIO_MEM,
+			.flags		= UPF_BOOT_AUTOCONF,
+			.line		= 2,
+		},
+	},
+};
+
+static inline struct sirfsoc_uart_port *to_sirfport(struct uart_port *port)
+{
+	return container_of(port, struct sirfsoc_uart_port, port);
+}
+
+static inline unsigned int sirfsoc_uart_tx_empty(struct uart_port *port)
+{
+	unsigned long reg;
+	reg = rd_regl(port, SIRFUART_TX_FIFO_STATUS);
+	if (reg & SIRFUART_FIFOEMPTY_MASK(port))
+		return TIOCSER_TEMT;
+	else
+		return 0;
+}
+
+static unsigned int sirfsoc_uart_get_mctrl(struct uart_port *port)
+{
+	struct sirfsoc_uart_port *sirfport = to_sirfport(port);
+	if (!(sirfport->ms_enabled)) {
+		goto cts_asserted;
+	} else if (sirfport->hw_flow_ctrl) {
+		if (!(rd_regl(port, SIRFUART_AFC_CTRL) &
+						SIRFUART_CTS_IN_STATUS))
+			goto cts_asserted;
+		else
+			goto cts_deasserted;
+	}
+cts_deasserted:
+	return TIOCM_CAR | TIOCM_DSR;
+cts_asserted:
+	return TIOCM_CAR | TIOCM_DSR | TIOCM_CTS;
+}
+
+static void sirfsoc_uart_set_mctrl(struct uart_port *port, unsigned int mctrl)
+{
+	struct sirfsoc_uart_port *sirfport = to_sirfport(port);
+	unsigned int assert = mctrl & TIOCM_RTS;
+	unsigned int val = assert ? SIRFUART_AFC_CTRL_RX_THD : 0x0;
+	unsigned int current_val;
+	if (sirfport->hw_flow_ctrl) {
+		current_val = rd_regl(port, SIRFUART_AFC_CTRL) & ~0xFF;
+		val |= current_val;
+		wr_regl(port, SIRFUART_AFC_CTRL, val);
+	}
+}
+
+static void sirfsoc_uart_stop_tx(struct uart_port *port)
+{
+	unsigned int regv;
+	regv = rd_regl(port, SIRFUART_INT_EN);
+	wr_regl(port, SIRFUART_INT_EN, regv & ~SIRFUART_TX_INT_EN);
+}
+
+void sirfsoc_uart_start_tx(struct uart_port *port)
+{
+	struct sirfsoc_uart_port *sirfport = to_sirfport(port);
+	unsigned long regv;
+	sirfsoc_uart_pio_tx_chars(sirfport, 1);
+	wr_regl(port, SIRFUART_TX_FIFO_OP, SIRFUART_TX_FIFO_START);
+	regv = rd_regl(port, SIRFUART_INT_EN);
+	wr_regl(port, SIRFUART_INT_EN, regv | SIRFUART_TX_INT_EN);
+}
+
+static void sirfsoc_uart_stop_rx(struct uart_port *port)
+{
+	unsigned long regv;
+	wr_regl(port, SIRFUART_RX_FIFO_OP, 0);
+	regv = rd_regl(port, SIRFUART_INT_EN);
+	wr_regl(port, SIRFUART_INT_EN, regv & ~SIRFUART_RX_IO_INT_EN);
+}
+
+static void sirfsoc_uart_disable_ms(struct uart_port *port)
+{
+	struct sirfsoc_uart_port *sirfport = to_sirfport(port);
+	unsigned long reg;
+	sirfport->ms_enabled = 0;
+	if (!sirfport->hw_flow_ctrl)
+		return;
+	reg = rd_regl(port, SIRFUART_AFC_CTRL);
+	wr_regl(port, SIRFUART_AFC_CTRL, reg & ~0x3FF);
+	reg = rd_regl(port, SIRFUART_INT_EN);
+	wr_regl(port, SIRFUART_INT_EN, reg & ~SIRFUART_CTS_INT_EN);
+}
+
+static void sirfsoc_uart_enable_ms(struct uart_port *port)
+{
+	struct sirfsoc_uart_port *sirfport = to_sirfport(port);
+	unsigned long reg;
+	unsigned long flg;
+	if (!sirfport->hw_flow_ctrl)
+		return;
+	flg = SIRFUART_AFC_RX_EN | SIRFUART_AFC_TX_EN;
+	reg = rd_regl(port, SIRFUART_AFC_CTRL);
+	wr_regl(port, SIRFUART_AFC_CTRL, reg | flg);
+	reg = rd_regl(port, SIRFUART_INT_EN);
+	wr_regl(port, SIRFUART_INT_EN, reg | SIRFUART_CTS_INT_EN);
+	uart_handle_cts_change(port,
+		!(rd_regl(port, SIRFUART_AFC_CTRL) & SIRFUART_CTS_IN_STATUS));
+	sirfport->ms_enabled = 1;
+}
+
+static void sirfsoc_uart_break_ctl(struct uart_port *port, int break_state)
+{
+	unsigned long ulcon = rd_regl(port, SIRFUART_LINE_CTRL);
+	if (break_state)
+		ulcon |= SIRFUART_SET_BREAK;
+	else
+		ulcon &= ~SIRFUART_SET_BREAK;
+	wr_regl(port, SIRFUART_LINE_CTRL, ulcon);
+}
+
+static unsigned int
+sirfsoc_uart_pio_rx_chars(struct uart_port *port, unsigned int max_rx_count)
+{
+	unsigned int ch, rx_count = 0;
+	struct tty_struct *tty;
+
+	tty = tty_port_tty_get(&port->state->port);
+	if (!tty)
+		return -ENODEV;
+
+	while (!(rd_regl(port, SIRFUART_RX_FIFO_STATUS) &
+					SIRFUART_FIFOEMPTY_MASK(port))) {
+		ch = rd_regl(port, SIRFUART_RX_FIFO_DATA) | SIRFUART_DUMMY_READ;
+		if (unlikely(uart_handle_sysrq_char(port, ch)))
+			continue;
+		uart_insert_char(port, 0, 0, ch, TTY_NORMAL);
+		rx_count++;
+		if (rx_count >= max_rx_count)
+			break;
+	}
+
+	port->icount.rx += rx_count;
+	tty_flip_buffer_push(tty);
+	tty_kref_put(tty);
+
+	return rx_count;
+}
+
+static unsigned int
+sirfsoc_uart_pio_tx_chars(struct sirfsoc_uart_port *sirfport, int count)
+{
+	struct uart_port *port = &sirfport->port;
+	struct circ_buf *xmit = &port->state->xmit;
+	unsigned int num_tx = 0;
+	while (!uart_circ_empty(xmit) &&
+		!(rd_regl(port, SIRFUART_TX_FIFO_STATUS) &
+					SIRFUART_FIFOFULL_MASK(port)) &&
+		count--) {
+		wr_regl(port, SIRFUART_TX_FIFO_DATA, xmit->buf[xmit->tail]);
+		xmit->tail = (xmit->tail + 1) & (UART_XMIT_SIZE - 1);
+		port->icount.tx++;
+		num_tx++;
+	}
+	if (uart_circ_chars_pending(xmit) < WAKEUP_CHARS)
+		uart_write_wakeup(port);
+	return num_tx;
+}
+
+static irqreturn_t sirfsoc_uart_isr(int irq, void *dev_id)
+{
+	unsigned long intr_status;
+	unsigned long cts_status;
+	unsigned long flag = TTY_NORMAL;
+	struct sirfsoc_uart_port *sirfport = (struct sirfsoc_uart_port *)dev_id;
+	struct uart_port *port = &sirfport->port;
+	struct uart_state *state = port->state;
+	struct circ_buf *xmit = &port->state->xmit;
+	intr_status = rd_regl(port, SIRFUART_INT_STATUS);
+	wr_regl(port, SIRFUART_INT_STATUS, intr_status);
+	intr_status &= rd_regl(port, SIRFUART_INT_EN);
+	if (unlikely(intr_status & (SIRFUART_ERR_INT_STAT))) {
+		if (intr_status & SIRFUART_RXD_BREAK) {
+			if (uart_handle_break(port))
+				goto recv_char;
+			uart_insert_char(port, intr_status,
+					SIRFUART_RX_OFLOW, 0, TTY_BREAK);
+			return IRQ_HANDLED;
+		}
+		if (intr_status & SIRFUART_RX_OFLOW)
+			port->icount.overrun++;
+		if (intr_status & SIRFUART_FRM_ERR) {
+			port->icount.frame++;
+			flag = TTY_FRAME;
+		}
+		if (intr_status & SIRFUART_PARITY_ERR)
+			flag = TTY_PARITY;
+		wr_regl(port, SIRFUART_RX_FIFO_OP, SIRFUART_RX_FIFO_RESET);
+		wr_regl(port, SIRFUART_RX_FIFO_OP, 0);
+		wr_regl(port, SIRFUART_RX_FIFO_OP, SIRFUART_RX_FIFO_START);
+		intr_status &= port->read_status_mask;
+		uart_insert_char(port, intr_status,
+					SIRFUART_RX_OFLOW_INT, 0, flag);
+	}
+recv_char:
+	if (intr_status & SIRFUART_CTS_INT_EN) {
+		cts_status = !(rd_regl(port, SIRFUART_AFC_CTRL) &
+							SIRFUART_CTS_IN_STATUS);
+		if (cts_status != 0) {
+			uart_handle_cts_change(port, 1);
+		} else {
+			uart_handle_cts_change(port, 0);
+			wake_up_interruptible(&state->port.delta_msr_wait);
+		}
+	}
+	if (intr_status & SIRFUART_RX_IO_INT_EN)
+		sirfsoc_uart_pio_rx_chars(port, SIRFSOC_UART_IO_RX_MAX_CNT);
+	if (intr_status & SIRFUART_TX_INT_EN) {
+		if (uart_circ_empty(xmit) || uart_tx_stopped(port)) {
+			return IRQ_HANDLED;
+		} else {
+			sirfsoc_uart_pio_tx_chars(sirfport,
+					SIRFSOC_UART_IO_TX_REASONABLE_CNT);
+			if ((uart_circ_empty(xmit)) &&
+				(rd_regl(port, SIRFUART_TX_FIFO_STATUS) &
+						SIRFUART_FIFOEMPTY_MASK(port)))
+				sirfsoc_uart_stop_tx(port);
+		}
+	}
+	return IRQ_HANDLED;
+}
+
+static void sirfsoc_uart_start_rx(struct uart_port *port)
+{
+	unsigned long regv;
+	regv = rd_regl(port, SIRFUART_INT_EN);
+	wr_regl(port, SIRFUART_INT_EN, regv | SIRFUART_RX_IO_INT_EN);
+	wr_regl(port, SIRFUART_RX_FIFO_OP, SIRFUART_RX_FIFO_RESET);
+	wr_regl(port, SIRFUART_RX_FIFO_OP, 0);
+	wr_regl(port, SIRFUART_RX_FIFO_OP, SIRFUART_RX_FIFO_START);
+}
+
+static unsigned int
+sirfsoc_calc_sample_div(unsigned long baud_rate,
+			unsigned long ioclk_rate, unsigned long *setted_baud)
+{
+	unsigned long min_delta = ~0UL;
+	unsigned short sample_div;
+	unsigned int regv = 0;
+	unsigned long ioclk_div;
+	unsigned long baud_tmp;
+	int temp_delta;
+
+	for (sample_div = SIRF_MIN_SAMPLE_DIV;
+			sample_div <= SIRF_MAX_SAMPLE_DIV; sample_div++) {
+		ioclk_div = (ioclk_rate / (baud_rate * (sample_div + 1))) - 1;
+		if (ioclk_div > SIRF_IOCLK_DIV_MAX)
+			continue;
+		baud_tmp = ioclk_rate / ((ioclk_div + 1) * (sample_div + 1));
+		temp_delta = baud_tmp - baud_rate;
+		temp_delta = (temp_delta > 0) ? temp_delta : -temp_delta;
+		if (temp_delta < min_delta) {
+			regv = regv & (~SIRF_IOCLK_DIV_MASK);
+			regv = regv | ioclk_div;
+			regv = regv & (~SIRF_SAMPLE_DIV_MASK);
+			regv = regv | (sample_div << SIRF_SAMPLE_DIV_SHIFT);
+			min_delta = temp_delta;
+			*setted_baud = baud_tmp;
+		}
+	}
+	return regv;
+}
+
+static void sirfsoc_uart_set_termios(struct uart_port *port,
+				       struct ktermios *termios,
+				       struct ktermios *old)
+{
+	struct sirfsoc_uart_port *sirfport = to_sirfport(port);
+	unsigned long	ioclk_rate;
+	unsigned long	config_reg = 0;
+	unsigned long	baud_rate;
+	unsigned long	setted_baud;
+	unsigned long	flags;
+	unsigned long	ic;
+	unsigned int	clk_div_reg = 0;
+	unsigned long	temp_reg_val;
+	unsigned long	rx_time_out;
+	int		threshold_div;
+	int		temp;
+
+	ioclk_rate = 150000000;
+	switch (termios->c_cflag & CSIZE) {
+	default:
+	case CS8:
+		config_reg |= SIRFUART_DATA_BIT_LEN_8;
+		break;
+	case CS7:
+		config_reg |= SIRFUART_DATA_BIT_LEN_7;
+		break;
+	case CS6:
+		config_reg |= SIRFUART_DATA_BIT_LEN_6;
+		break;
+	case CS5:
+		config_reg |= SIRFUART_DATA_BIT_LEN_5;
+		break;
+	}
+	if (termios->c_cflag & CSTOPB)
+		config_reg |= SIRFUART_STOP_BIT_LEN_2;
+	baud_rate = uart_get_baud_rate(port, termios, old, 0, 4000000);
+	spin_lock_irqsave(&port->lock, flags);
+	port->read_status_mask = SIRFUART_RX_OFLOW_INT;
+	port->ignore_status_mask = 0;
+	/* read flags */
+	if (termios->c_iflag & INPCK)
+		port->read_status_mask |=
+			SIRFUART_FRM_ERR_INT | SIRFUART_PARITY_ERR_INT;
+	if (termios->c_iflag & (BRKINT | PARMRK))
+		port->read_status_mask |= SIRFUART_RXD_BREAK_INT;
+	/* ignore flags */
+	if (termios->c_iflag & IGNPAR)
+		port->ignore_status_mask |=
+			SIRFUART_FRM_ERR_INT | SIRFUART_PARITY_ERR_INT;
+	if ((termios->c_cflag & CREAD) == 0)
+		port->ignore_status_mask |= SIRFUART_DUMMY_READ;
+	/* enable parity if PARENB is set*/
+	if (termios->c_cflag & PARENB) {
+		if (termios->c_cflag & CMSPAR) {
+			if (termios->c_cflag & PARODD)
+				config_reg |= SIRFUART_STICK_BIT_MARK;
+			else
+				config_reg |= SIRFUART_STICK_BIT_SPACE;
+		} else if (termios->c_cflag & PARODD) {
+			config_reg |= SIRFUART_STICK_BIT_ODD;
+		} else {
+			config_reg |= SIRFUART_STICK_BIT_EVEN;
+		}
+	}
+	/* Hardware Flow Control Settings */
+	if (UART_ENABLE_MS(port, termios->c_cflag)) {
+		if (!sirfport->ms_enabled)
+			sirfsoc_uart_enable_ms(port);
+	} else {
+		if (sirfport->ms_enabled)
+			sirfsoc_uart_disable_ms(port);
+	}
+
+	/* common rate: fast calculation */
+	for (ic = 0; ic < SIRF_BAUD_RATE_SUPPORT_NR; ic++)
+		if (baud_rate == baudrate_to_regv[ic].baud_rate)
+			clk_div_reg = baudrate_to_regv[ic].reg_val;
+	setted_baud = baud_rate;
+	/* arbitary rate setting */
+	if (unlikely(clk_div_reg == 0))
+		clk_div_reg = sirfsoc_calc_sample_div(baud_rate, ioclk_rate,
+								&setted_baud);
+	wr_regl(port, SIRFUART_DIVISOR, clk_div_reg);
+
+	if (tty_termios_baud_rate(termios))
+		tty_termios_encode_baud_rate(termios, setted_baud, setted_baud);
+
+	/* set receive timeout */
+	rx_time_out = SIRFSOC_UART_RX_TIMEOUT(baud_rate, 20000);
+	rx_time_out = (rx_time_out > 0xFFFF) ? 0xFFFF : rx_time_out;
+	config_reg |= SIRFUART_RECV_TIMEOUT(rx_time_out);
+	temp_reg_val = rd_regl(port, SIRFUART_TX_FIFO_OP);
+	wr_regl(port, SIRFUART_RX_FIFO_OP, 0);
+	wr_regl(port, SIRFUART_TX_FIFO_OP,
+				temp_reg_val & ~SIRFUART_TX_FIFO_START);
+	wr_regl(port, SIRFUART_TX_DMA_IO_CTRL, SIRFUART_TX_MODE_IO);
+	wr_regl(port, SIRFUART_RX_DMA_IO_CTRL, SIRFUART_RX_MODE_IO);
+	wr_regl(port, SIRFUART_LINE_CTRL, config_reg);
+
+	/* Reset Rx/Tx FIFO Threshold level for proper baudrate */
+	if (baud_rate < 1000000)
+		threshold_div = 1;
+	else
+		threshold_div = 2;
+	temp = port->line == 1 ? 16 : 64;
+	wr_regl(port, SIRFUART_TX_FIFO_CTRL, temp / threshold_div);
+	wr_regl(port, SIRFUART_RX_FIFO_CTRL, temp / threshold_div);
+	temp_reg_val |= SIRFUART_TX_FIFO_START;
+	wr_regl(port, SIRFUART_TX_FIFO_OP, temp_reg_val);
+	uart_update_timeout(port, termios->c_cflag, baud_rate);
+	sirfsoc_uart_start_rx(port);
+	wr_regl(port, SIRFUART_TX_RX_EN, SIRFUART_TX_EN | SIRFUART_RX_EN);
+	spin_unlock_irqrestore(&port->lock, flags);
+}
+
+static void startup_uart_controller(struct uart_port *port)
+{
+	unsigned long temp_regv;
+	int temp;
+	temp_regv = rd_regl(port, SIRFUART_TX_DMA_IO_CTRL);
+	wr_regl(port, SIRFUART_TX_DMA_IO_CTRL, temp_regv | SIRFUART_TX_MODE_IO);
+	temp_regv = rd_regl(port, SIRFUART_RX_DMA_IO_CTRL);
+	wr_regl(port, SIRFUART_RX_DMA_IO_CTRL, temp_regv | SIRFUART_RX_MODE_IO);
+	wr_regl(port, SIRFUART_TX_DMA_IO_LEN, 0);
+	wr_regl(port, SIRFUART_RX_DMA_IO_LEN, 0);
+	wr_regl(port, SIRFUART_TX_RX_EN, SIRFUART_RX_EN | SIRFUART_TX_EN);
+	wr_regl(port, SIRFUART_TX_FIFO_OP, SIRFUART_TX_FIFO_RESET);
+	wr_regl(port, SIRFUART_TX_FIFO_OP, 0);
+	wr_regl(port, SIRFUART_RX_FIFO_OP, SIRFUART_RX_FIFO_RESET);
+	wr_regl(port, SIRFUART_RX_FIFO_OP, 0);
+	temp = port->line == 1 ? 16 : 64;
+	wr_regl(port, SIRFUART_TX_FIFO_CTRL, temp);
+	wr_regl(port, SIRFUART_RX_FIFO_CTRL, temp);
+}
+
+static int sirfsoc_uart_startup(struct uart_port *port)
+{
+	struct sirfsoc_uart_port *sirfport	= to_sirfport(port);
+	unsigned int index			= port->line;
+	int ret;
+	set_irq_flags(port->irq, IRQF_VALID | IRQF_NOAUTOEN);
+	ret = request_irq(port->irq,
+				sirfsoc_uart_isr,
+				0,
+				SIRFUART_PORT_NAME,
+				sirfport);
+	if (ret != 0) {
+		dev_err(port->dev, "UART%d request IRQ line (%d) failed.\n",
+							index, port->irq);
+		goto irq_err;
+	}
+	startup_uart_controller(port);
+	enable_irq(port->irq);
+irq_err:
+	return ret;
+}
+
+static void sirfsoc_uart_shutdown(struct uart_port *port)
+{
+	struct sirfsoc_uart_port *sirfport = to_sirfport(port);
+	wr_regl(port, SIRFUART_INT_EN, 0);
+	free_irq(port->irq, sirfport);
+	if (sirfport->ms_enabled) {
+		sirfsoc_uart_disable_ms(port);
+		sirfport->ms_enabled = 0;
+	}
+}
+
+static const char *sirfsoc_uart_type(struct uart_port *port)
+{
+	return port->type == SIRFSOC_PORT_TYPE ? SIRFUART_PORT_NAME : NULL;
+}
+
+static int sirfsoc_uart_request_port(struct uart_port *port)
+{
+	void *ret;
+	ret = request_mem_region(port->mapbase,
+				SIRFUART_MAP_SIZE, SIRFUART_PORT_NAME);
+	return ret ? 0 : -EBUSY;
+}
+
+static void sirfsoc_uart_release_port(struct uart_port *port)
+{
+	release_mem_region(port->mapbase, SIRFUART_MAP_SIZE);
+}
+
+static void sirfsoc_uart_config_port(struct uart_port *port, int flags)
+{
+	if (flags & UART_CONFIG_TYPE) {
+		port->type = SIRFSOC_PORT_TYPE;
+		sirfsoc_uart_request_port(port);
+	}
+}
+
+static struct uart_ops sirfsoc_uart_ops = {
+	.tx_empty	= sirfsoc_uart_tx_empty,
+	.get_mctrl	= sirfsoc_uart_get_mctrl,
+	.set_mctrl	= sirfsoc_uart_set_mctrl,
+	.stop_tx	= sirfsoc_uart_stop_tx,
+	.start_tx	= sirfsoc_uart_start_tx,
+	.stop_rx	= sirfsoc_uart_stop_rx,
+	.enable_ms	= sirfsoc_uart_enable_ms,
+	.break_ctl	= sirfsoc_uart_break_ctl,
+	.startup	= sirfsoc_uart_startup,
+	.shutdown	= sirfsoc_uart_shutdown,
+	.set_termios	= sirfsoc_uart_set_termios,
+	.type		= sirfsoc_uart_type,
+	.release_port	= sirfsoc_uart_release_port,
+	.request_port	= sirfsoc_uart_request_port,
+	.config_port	= sirfsoc_uart_config_port,
+};
+
+#ifdef CONFIG_SERIAL_SIRFSOC_CONSOLE
+static int __init sirfsoc_uart_console_setup(struct console *co, char *options)
+{
+	unsigned int baud = 115200;
+	unsigned int bits = 8;
+	unsigned int parity = 'n';
+	unsigned int flow = 'n';
+	struct uart_port *port = &sirfsoc_uart_ports[co->index].port;
+
+	if (co->index < 0 || co->index >= SIRFSOC_UART_NR)
+		return -EINVAL;
+
+	if (!port->mapbase)
+		return -ENODEV;
+
+	if (options)
+		uart_parse_options(options, &baud, &parity, &bits, &flow);
+	port->cons = co;
+	return uart_set_options(port, co, baud, parity, bits, flow);
+}
+
+static void sirfsoc_uart_console_putchar(struct uart_port *port, int ch)
+{
+	while (rd_regl(port,
+		SIRFUART_TX_FIFO_STATUS) & SIRFUART_FIFOFULL_MASK(port))
+		cpu_relax();
+	wr_regb(port, SIRFUART_TX_FIFO_DATA, ch);
+}
+
+static void sirfsoc_uart_console_write(struct console *co, const char *s,
+							unsigned int count)
+{
+	struct uart_port *port = &sirfsoc_uart_ports[co->index].port;
+	uart_console_write(port, s, count, sirfsoc_uart_console_putchar);
+}
+
+static struct console sirfsoc_uart_console = {
+	.name		= SIRFSOC_UART_NAME,
+	.device		= uart_console_device,
+	.flags		= CON_PRINTBUFFER,
+	.index		= -1,
+	.write		= sirfsoc_uart_console_write,
+	.setup		= sirfsoc_uart_console_setup,
+	.data           = &sirfsoc_uart_drv,
+};
+
+static int __init sirfsoc_uart_console_init(void)
+{
+	register_console(&sirfsoc_uart_console);
+	return 0;
+}
+console_initcall(sirfsoc_uart_console_init);
+#endif
+
+static struct uart_driver sirfsoc_uart_drv = {
+	.owner		= THIS_MODULE,
+	.driver_name	= SIRFUART_PORT_NAME,
+	.nr		= SIRFSOC_UART_NR,
+	.dev_name	= SIRFSOC_UART_NAME,
+	.major		= SIRFSOC_UART_MAJOR,
+	.minor		= SIRFSOC_UART_MINOR,
+#ifdef CONFIG_SERIAL_SIRFSOC_CONSOLE
+	.cons			= &sirfsoc_uart_console,
+#else
+	.cons			= NULL,
+#endif
+};
+
+int sirfsoc_uart_probe(struct platform_device *pdev)
+{
+	struct sirfsoc_uart_port *sirfport;
+	struct uart_port *port;
+	struct resource *res;
+	int ret;
+
+	if (of_property_read_u32(pdev->dev.of_node, "cell-index", &pdev->id)) {
+		dev_err(&pdev->dev,
+			"Unable to find cell-index in uart node.\n");
+		ret = -EFAULT;
+		goto err;
+	}
+
+	sirfport = &sirfsoc_uart_ports[pdev->id];
+	port = &sirfport->port;
+	port->dev = &pdev->dev;
+	port->private_data = sirfport;
+
+	if (of_find_property(pdev->dev.of_node, "hw_flow_ctrl", NULL))
+		sirfport->hw_flow_ctrl = 1;
+
+	if (of_property_read_u32(pdev->dev.of_node,
+			"fifosize",
+			&port->fifosize)) {
+		dev_err(&pdev->dev,
+			"Unable to find fifosize in uart node.\n");
+		ret = -EFAULT;
+		goto err;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (res == NULL) {
+		dev_err(&pdev->dev, "Insufficient resources.\n");
+		ret = -EFAULT;
+		goto err;
+	}
+	port->mapbase = res->start;
+	port->membase = devm_ioremap(&pdev->dev, res->start, resource_size(res));
+	if (!port->membase) {
+		dev_err(&pdev->dev, "Cannot remap resource.\n");
+		ret = -ENOMEM;
+		goto err;
+	}
+	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
+	if (res == NULL) {
+		dev_err(&pdev->dev, "Insufficient resources.\n");
+		ret = -EFAULT;
+		goto irq_err;
+	}
+	port->irq = res->start;
+
+	if (sirfport->hw_flow_ctrl) {
+		sirfport->pmx = pinmux_get(&pdev->dev, NULL);
+		ret = IS_ERR(sirfport->pmx);
+		if (ret)
+			goto pmx_err;
+
+		pinmux_enable(sirfport->pmx);
+	}
+
+	port->ops = &sirfsoc_uart_ops;
+	spin_lock_init(&port->lock);
+
+	platform_set_drvdata(pdev, sirfport);
+	ret = uart_add_one_port(&sirfsoc_uart_drv, port);
+	if (ret != 0) {
+		dev_err(&pdev->dev, "Cannot add UART port(%d).\n", pdev->id);
+		goto port_err;
+	}
+
+	return 0;
+
+port_err:
+	platform_set_drvdata(pdev, NULL);
+	if (sirfport->hw_flow_ctrl) {
+		pinmux_disable(sirfport->pmx);
+		pinmux_put(sirfport->pmx);
+	}
+pmx_err:
+irq_err:
+	devm_iounmap(&pdev->dev, port->membase);
+err:
+	return ret;
+}
+
+static int sirfsoc_uart_remove(struct platform_device *pdev)
+{
+	struct sirfsoc_uart_port *sirfport = platform_get_drvdata(pdev);
+	struct uart_port *port = &sirfport->port;
+	platform_set_drvdata(pdev, NULL);
+	if (sirfport->hw_flow_ctrl) {
+		pinmux_disable(sirfport->pmx);
+		pinmux_put(sirfport->pmx);
+	}
+	devm_iounmap(&pdev->dev, port->membase);
+	uart_remove_one_port(&sirfsoc_uart_drv, port);
+	return 0;
+}
+
+static int
+sirfsoc_uart_suspend(struct platform_device *pdev, pm_message_t state)
+{
+	struct sirfsoc_uart_port *sirfport = platform_get_drvdata(pdev);
+	struct uart_port *port = &sirfport->port;
+	uart_suspend_port(&sirfsoc_uart_drv, port);
+	return 0;
+}
+
+static int sirfsoc_uart_resume(struct platform_device *pdev)
+{
+	struct sirfsoc_uart_port *sirfport = platform_get_drvdata(pdev);
+	struct uart_port *port = &sirfport->port;
+	uart_resume_port(&sirfsoc_uart_drv, port);
+	return 0;
+}
+
+static struct of_device_id sirfsoc_uart_ids[] __devinitdata = {
+	{ .compatible = "sirf,prima2-uart", },
+	{}
+};
+MODULE_DEVICE_TABLE(of, sirfsoc_serial_of_match);
+
+static struct platform_driver sirfsoc_uart_driver = {
+	.probe		= sirfsoc_uart_probe,
+	.remove		= __devexit_p(sirfsoc_uart_remove),
+	.suspend	= sirfsoc_uart_suspend,
+	.resume		= sirfsoc_uart_resume,
+	.driver		= {
+		.name	= SIRFUART_PORT_NAME,
+		.owner	= THIS_MODULE,
+		.of_match_table = sirfsoc_uart_ids,
+	},
+};
+
+static int __init sirfsoc_uart_init(void)
+{
+	int ret = 0;
+
+	ret = uart_register_driver(&sirfsoc_uart_drv);
+	if (ret)
+		goto out;
+
+	ret = platform_driver_register(&sirfsoc_uart_driver);
+	if (ret)
+		uart_unregister_driver(&sirfsoc_uart_drv);
+out:
+	return ret;
+}
+module_init(sirfsoc_uart_init);
+
+static void __exit sirfsoc_uart_exit(void)
+{
+	platform_driver_unregister(&sirfsoc_uart_driver);
+	uart_unregister_driver(&sirfsoc_uart_drv);
+}
+module_exit(sirfsoc_uart_exit);
+
+MODULE_LICENSE("GPL v2");
+MODULE_AUTHOR("Bin Shi <Bin.Shi@csr.com>, Rong Wang<Rong.Wang@csr.com>");
+MODULE_DESCRIPTION("CSR SiRFprimaII Uart Driver");
diff --git a/drivers/tty/serial/sirfsoc_uart.h b/drivers/tty/serial/sirfsoc_uart.h
new file mode 100644
index 000000000000..fc64260fa93c
--- /dev/null
+++ b/drivers/tty/serial/sirfsoc_uart.h
@@ -0,0 +1,185 @@
+/*
+ * Drivers for CSR SiRFprimaII onboard UARTs.
+ *
+ * Copyright (c) 2011 Cambridge Silicon Radio Limited, a CSR plc group company.
+ *
+ * Licensed under GPLv2 or later.
+ */
+#include <linux/bitops.h>
+
+/* UART Register Offset Define */
+#define SIRFUART_LINE_CTRL			0x0040
+#define SIRFUART_TX_RX_EN			0x004c
+#define SIRFUART_DIVISOR			0x0050
+#define SIRFUART_INT_EN				0x0054
+#define SIRFUART_INT_STATUS			0x0058
+#define SIRFUART_TX_DMA_IO_CTRL			0x0100
+#define SIRFUART_TX_DMA_IO_LEN			0x0104
+#define SIRFUART_TX_FIFO_CTRL			0x0108
+#define SIRFUART_TX_FIFO_LEVEL_CHK		0x010C
+#define SIRFUART_TX_FIFO_OP			0x0110
+#define SIRFUART_TX_FIFO_STATUS			0x0114
+#define SIRFUART_TX_FIFO_DATA			0x0118
+#define SIRFUART_RX_DMA_IO_CTRL			0x0120
+#define SIRFUART_RX_DMA_IO_LEN			0x0124
+#define SIRFUART_RX_FIFO_CTRL			0x0128
+#define SIRFUART_RX_FIFO_LEVEL_CHK		0x012C
+#define SIRFUART_RX_FIFO_OP			0x0130
+#define SIRFUART_RX_FIFO_STATUS			0x0134
+#define SIRFUART_RX_FIFO_DATA			0x0138
+#define SIRFUART_AFC_CTRL			0x0140
+#define SIRFUART_SWH_DMA_IO			0x0148
+
+/* UART Line Control Register */
+#define SIRFUART_DATA_BIT_LEN_MASK		0x3
+#define SIRFUART_DATA_BIT_LEN_5			BIT(0)
+#define SIRFUART_DATA_BIT_LEN_6			1
+#define SIRFUART_DATA_BIT_LEN_7			2
+#define SIRFUART_DATA_BIT_LEN_8			3
+#define SIRFUART_STOP_BIT_LEN_1			0
+#define SIRFUART_STOP_BIT_LEN_2			BIT(2)
+#define SIRFUART_PARITY_EN			BIT(3)
+#define SIRFUART_EVEN_BIT			BIT(4)
+#define SIRFUART_STICK_BIT_MASK			(7 << 3)
+#define SIRFUART_STICK_BIT_NONE			(0 << 3)
+#define SIRFUART_STICK_BIT_EVEN			BIT(3)
+#define SIRFUART_STICK_BIT_ODD			(3 << 3)
+#define SIRFUART_STICK_BIT_MARK			(5 << 3)
+#define SIRFUART_STICK_BIT_SPACE		(7 << 3)
+#define SIRFUART_SET_BREAK			BIT(6)
+#define SIRFUART_LOOP_BACK			BIT(7)
+#define SIRFUART_PARITY_MASK			(7 << 3)
+#define SIRFUART_DUMMY_READ			BIT(16)
+
+#define SIRFSOC_UART_RX_TIMEOUT(br, to)	(((br) * (((to) + 999) / 1000)) / 1000)
+#define SIRFUART_RECV_TIMEOUT_MASK	(0xFFFF << 16)
+#define SIRFUART_RECV_TIMEOUT(x)	(((x) & 0xFFFF) << 16)
+
+/* UART Auto Flow Control */
+#define SIRFUART_AFC_RX_THD_MASK		0x000000FF
+#define SIRFUART_AFC_RX_EN			BIT(8)
+#define SIRFUART_AFC_TX_EN			BIT(9)
+#define SIRFUART_CTS_CTRL			BIT(10)
+#define SIRFUART_RTS_CTRL			BIT(11)
+#define SIRFUART_CTS_IN_STATUS			BIT(12)
+#define SIRFUART_RTS_OUT_STATUS			BIT(13)
+
+/* UART Interrupt Enable Register */
+#define SIRFUART_RX_DONE_INT			BIT(0)
+#define SIRFUART_TX_DONE_INT			BIT(1)
+#define SIRFUART_RX_OFLOW_INT			BIT(2)
+#define SIRFUART_TX_ALLOUT_INT			BIT(3)
+#define SIRFUART_RX_IO_DMA_INT			BIT(4)
+#define SIRFUART_TX_IO_DMA_INT			BIT(5)
+#define SIRFUART_RXFIFO_FULL_INT		BIT(6)
+#define SIRFUART_TXFIFO_EMPTY_INT		BIT(7)
+#define SIRFUART_RXFIFO_THD_INT			BIT(8)
+#define SIRFUART_TXFIFO_THD_INT			BIT(9)
+#define SIRFUART_FRM_ERR_INT			BIT(10)
+#define SIRFUART_RXD_BREAK_INT			BIT(11)
+#define SIRFUART_RX_TIMEOUT_INT			BIT(12)
+#define SIRFUART_PARITY_ERR_INT			BIT(13)
+#define SIRFUART_CTS_INT_EN			BIT(14)
+#define SIRFUART_RTS_INT_EN			BIT(15)
+
+/* UART Interrupt Status Register */
+#define SIRFUART_RX_DONE			BIT(0)
+#define SIRFUART_TX_DONE			BIT(1)
+#define SIRFUART_RX_OFLOW			BIT(2)
+#define SIRFUART_TX_ALL_EMPTY			BIT(3)
+#define SIRFUART_DMA_IO_RX_DONE			BIT(4)
+#define SIRFUART_DMA_IO_TX_DONE			BIT(5)
+#define SIRFUART_RXFIFO_FULL			BIT(6)
+#define SIRFUART_TXFIFO_EMPTY			BIT(7)
+#define SIRFUART_RXFIFO_THD_REACH		BIT(8)
+#define SIRFUART_TXFIFO_THD_REACH		BIT(9)
+#define SIRFUART_FRM_ERR			BIT(10)
+#define SIRFUART_RXD_BREAK			BIT(11)
+#define SIRFUART_RX_TIMEOUT			BIT(12)
+#define SIRFUART_PARITY_ERR			BIT(13)
+#define SIRFUART_CTS_CHANGE			BIT(14)
+#define SIRFUART_RTS_CHANGE			BIT(15)
+#define SIRFUART_PLUG_IN			BIT(16)
+
+#define SIRFUART_ERR_INT_STAT					\
+				(SIRFUART_RX_OFLOW |		\
+				SIRFUART_FRM_ERR |		\
+				SIRFUART_RXD_BREAK |		\
+				SIRFUART_PARITY_ERR)
+#define SIRFUART_ERR_INT_EN					\
+				(SIRFUART_RX_OFLOW_INT |	\
+				SIRFUART_FRM_ERR_INT |		\
+				SIRFUART_RXD_BREAK_INT |	\
+				SIRFUART_PARITY_ERR_INT)
+#define SIRFUART_TX_INT_EN	SIRFUART_TXFIFO_EMPTY_INT
+#define SIRFUART_RX_IO_INT_EN					\
+				(SIRFUART_RX_TIMEOUT_INT |	\
+				SIRFUART_RXFIFO_THD_INT |	\
+				SIRFUART_RXFIFO_FULL_INT |	\
+				SIRFUART_ERR_INT_EN)
+
+/* UART FIFO Register */
+#define SIRFUART_TX_FIFO_STOP			0x0
+#define SIRFUART_TX_FIFO_RESET			0x1
+#define SIRFUART_TX_FIFO_START			0x2
+#define SIRFUART_RX_FIFO_STOP			0x0
+#define SIRFUART_RX_FIFO_RESET			0x1
+#define SIRFUART_RX_FIFO_START			0x2
+#define SIRFUART_TX_MODE_DMA			0
+#define SIRFUART_TX_MODE_IO			1
+#define SIRFUART_RX_MODE_DMA			0
+#define SIRFUART_RX_MODE_IO			1
+
+#define SIRFUART_RX_EN				0x1
+#define SIRFUART_TX_EN				0x2
+
+/* Generic Definitions */
+#define SIRFSOC_UART_NAME			"ttySiRF"
+#define SIRFSOC_UART_MAJOR			0
+#define SIRFSOC_UART_MINOR			0
+#define SIRFUART_PORT_NAME			"sirfsoc-uart"
+#define SIRFUART_MAP_SIZE			0x200
+#define SIRFSOC_UART_NR				3
+#define SIRFSOC_PORT_TYPE			0xa5
+
+/* Baud Rate Calculation */
+#define SIRF_MIN_SAMPLE_DIV			0xf
+#define SIRF_MAX_SAMPLE_DIV			0x3f
+#define SIRF_IOCLK_DIV_MAX			0xffff
+#define SIRF_SAMPLE_DIV_SHIFT			16
+#define SIRF_IOCLK_DIV_MASK			0xffff
+#define SIRF_SAMPLE_DIV_MASK			0x3f0000
+#define SIRF_BAUD_RATE_SUPPORT_NR		18
+
+/* For Fast Baud Rate Calculation */
+struct sirfsoc_baudrate_to_regv {
+	unsigned int baud_rate;
+	unsigned int reg_val;
+};
+
+struct sirfsoc_uart_port {
+	unsigned char			hw_flow_ctrl;
+	unsigned char			ms_enabled;
+
+	struct uart_port		port;
+	struct pinmux			*pmx;
+};
+
+/* Hardware Flow Control */
+#define SIRFUART_AFC_CTRL_RX_THD	0x70
+
+/* Register Access Control */
+#define portaddr(port, reg)		((port)->membase + (reg))
+#define rd_regb(port, reg)		(__raw_readb(portaddr(port, reg)))
+#define rd_regl(port, reg)		(__raw_readl(portaddr(port, reg)))
+#define wr_regb(port, reg, val)		__raw_writeb(val, portaddr(port, reg))
+#define wr_regl(port, reg, val)		__raw_writel(val, portaddr(port, reg))
+
+/* UART Port Mask */
+#define SIRFUART_FIFOLEVEL_MASK(port)	((port->line == 1) ? (0x1f) : (0x7f))
+#define SIRFUART_FIFOFULL_MASK(port)	((port->line == 1) ? (0x20) : (0x80))
+#define SIRFUART_FIFOEMPTY_MASK(port)	((port->line == 1) ? (0x40) : (0x100))
+
+/* I/O Mode */
+#define SIRFSOC_UART_IO_RX_MAX_CNT		256
+#define SIRFSOC_UART_IO_TX_REASONABLE_CNT	6
diff --git a/drivers/tty/serial/timbuart.c b/drivers/tty/serial/timbuart.c
index e76c8b747fb8..70f97491d8f2 100644
--- a/drivers/tty/serial/timbuart.c
+++ b/drivers/tty/serial/timbuart.c
@@ -513,20 +513,7 @@ static struct platform_driver timbuart_platform_driver = {
 	.remove		= __devexit_p(timbuart_remove),
 };
 
-/*--------------------------------------------------------------------------*/
-
-static int __init timbuart_init(void)
-{
-	return platform_driver_register(&timbuart_platform_driver);
-}
-
-static void __exit timbuart_exit(void)
-{
-	platform_driver_unregister(&timbuart_platform_driver);
-}
-
-module_init(timbuart_init);
-module_exit(timbuart_exit);
+module_platform_driver(timbuart_platform_driver);
 
 MODULE_DESCRIPTION("Timberdale UART driver");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/tty/serial/vr41xx_siu.c b/drivers/tty/serial/vr41xx_siu.c
index 3beb6ab4fa68..83148e79ca13 100644
--- a/drivers/tty/serial/vr41xx_siu.c
+++ b/drivers/tty/serial/vr41xx_siu.c
@@ -961,18 +961,7 @@ static struct platform_driver siu_device_driver = {
 	},
 };
 
-static int __init vr41xx_siu_init(void)
-{
-	return platform_driver_register(&siu_device_driver);
-}
-
-static void __exit vr41xx_siu_exit(void)
-{
-	platform_driver_unregister(&siu_device_driver);
-}
-
-module_init(vr41xx_siu_init);
-module_exit(vr41xx_siu_exit);
+module_platform_driver(siu_device_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_ALIAS("platform:SIU");
diff --git a/drivers/tty/tty_io.c b/drivers/tty/tty_io.c
index 3fdebd306b94..e41b9bbc107d 100644
--- a/drivers/tty/tty_io.c
+++ b/drivers/tty/tty_io.c
@@ -790,19 +790,24 @@ static void session_clear_tty(struct pid *session)
 void disassociate_ctty(int on_exit)
 {
 	struct tty_struct *tty;
-	struct pid *tty_pgrp = NULL;
 
 	if (!current->signal->leader)
 		return;
 
 	tty = get_current_tty();
 	if (tty) {
-		tty_pgrp = get_pid(tty->pgrp);
+		struct pid *tty_pgrp = get_pid(tty->pgrp);
 		if (on_exit) {
 			if (tty->driver->type != TTY_DRIVER_TYPE_PTY)
 				tty_vhangup(tty);
 		}
 		tty_kref_put(tty);
+		if (tty_pgrp) {
+			kill_pgrp(tty_pgrp, SIGHUP, on_exit);
+			if (!on_exit)
+				kill_pgrp(tty_pgrp, SIGCONT, on_exit);
+			put_pid(tty_pgrp);
+		}
 	} else if (on_exit) {
 		struct pid *old_pgrp;
 		spin_lock_irq(&current->sighand->siglock);
@@ -816,12 +821,6 @@ void disassociate_ctty(int on_exit)
 		}
 		return;
 	}
-	if (tty_pgrp) {
-		kill_pgrp(tty_pgrp, SIGHUP, on_exit);
-		if (!on_exit)
-			kill_pgrp(tty_pgrp, SIGCONT, on_exit);
-		put_pid(tty_pgrp);
-	}
 
 	spin_lock_irq(&current->sighand->siglock);
 	put_pid(current->signal->tty_old_pgrp);
@@ -1558,6 +1557,59 @@ static void release_tty(struct tty_struct *tty, int idx)
 }
 
 /**
+ *	tty_release_checks - check a tty before real release
+ *	@tty: tty to check
+ *	@o_tty: link of @tty (if any)
+ *	@idx: index of the tty
+ *
+ *	Performs some paranoid checking before true release of the @tty.
+ *	This is a no-op unless TTY_PARANOIA_CHECK is defined.
+ */
+static int tty_release_checks(struct tty_struct *tty, struct tty_struct *o_tty,
+		int idx)
+{
+#ifdef TTY_PARANOIA_CHECK
+	if (idx < 0 || idx >= tty->driver->num) {
+		printk(KERN_DEBUG "%s: bad idx when trying to free (%s)\n",
+				__func__, tty->name);
+		return -1;
+	}
+
+	/* not much to check for devpts */
+	if (tty->driver->flags & TTY_DRIVER_DEVPTS_MEM)
+		return 0;
+
+	if (tty != tty->driver->ttys[idx]) {
+		printk(KERN_DEBUG "%s: driver.table[%d] not tty for (%s)\n",
+				__func__, idx, tty->name);
+		return -1;
+	}
+	if (tty->termios != tty->driver->termios[idx]) {
+		printk(KERN_DEBUG "%s: driver.termios[%d] not termios for (%s)\n",
+				__func__, idx, tty->name);
+		return -1;
+	}
+	if (tty->driver->other) {
+		if (o_tty != tty->driver->other->ttys[idx]) {
+			printk(KERN_DEBUG "%s: other->table[%d] not o_tty for (%s)\n",
+					__func__, idx, tty->name);
+			return -1;
+		}
+		if (o_tty->termios != tty->driver->other->termios[idx]) {
+			printk(KERN_DEBUG "%s: other->termios[%d] not o_termios for (%s)\n",
+					__func__, idx, tty->name);
+			return -1;
+		}
+		if (o_tty->link != tty) {
+			printk(KERN_DEBUG "%s: bad pty pointers\n", __func__);
+			return -1;
+		}
+	}
+#endif
+	return 0;
+}
+
+/**
  *	tty_release		-	vfs callback for close
  *	@inode: inode of tty
  *	@filp: file pointer for handle to tty
@@ -1585,11 +1637,11 @@ int tty_release(struct inode *inode, struct file *filp)
 	int	idx;
 	char	buf[64];
 
-	if (tty_paranoia_check(tty, inode, "tty_release_dev"))
+	if (tty_paranoia_check(tty, inode, __func__))
 		return 0;
 
 	tty_lock();
-	check_tty_count(tty, "tty_release_dev");
+	check_tty_count(tty, __func__);
 
 	__tty_fasync(-1, filp, 0);
 
@@ -1599,59 +1651,16 @@ int tty_release(struct inode *inode, struct file *filp)
 	devpts = (tty->driver->flags & TTY_DRIVER_DEVPTS_MEM) != 0;
 	o_tty = tty->link;
 
-#ifdef TTY_PARANOIA_CHECK
-	if (idx < 0 || idx >= tty->driver->num) {
-		printk(KERN_DEBUG "tty_release_dev: bad idx when trying to "
-				  "free (%s)\n", tty->name);
+	if (tty_release_checks(tty, o_tty, idx)) {
 		tty_unlock();
 		return 0;
 	}
-	if (!devpts) {
-		if (tty != tty->driver->ttys[idx]) {
-			tty_unlock();
-			printk(KERN_DEBUG "tty_release_dev: driver.table[%d] not tty "
-			       "for (%s)\n", idx, tty->name);
-			return 0;
-		}
-		if (tty->termios != tty->driver->termios[idx]) {
-			tty_unlock();
-			printk(KERN_DEBUG "tty_release_dev: driver.termios[%d] not termios "
-			       "for (%s)\n",
-			       idx, tty->name);
-			return 0;
-		}
-	}
-#endif
 
 #ifdef TTY_DEBUG_HANGUP
-	printk(KERN_DEBUG "tty_release_dev of %s (tty count=%d)...",
-	       tty_name(tty, buf), tty->count);
+	printk(KERN_DEBUG "%s: %s (tty count=%d)...\n", __func__,
+			tty_name(tty, buf), tty->count);
 #endif
 
-#ifdef TTY_PARANOIA_CHECK
-	if (tty->driver->other &&
-	     !(tty->driver->flags & TTY_DRIVER_DEVPTS_MEM)) {
-		if (o_tty != tty->driver->other->ttys[idx]) {
-			tty_unlock();
-			printk(KERN_DEBUG "tty_release_dev: other->table[%d] "
-					  "not o_tty for (%s)\n",
-			       idx, tty->name);
-			return 0 ;
-		}
-		if (o_tty->termios != tty->driver->other->termios[idx]) {
-			tty_unlock();
-			printk(KERN_DEBUG "tty_release_dev: other->termios[%d] "
-					  "not o_termios for (%s)\n",
-			       idx, tty->name);
-			return 0;
-		}
-		if (o_tty->link != tty) {
-			tty_unlock();
-			printk(KERN_DEBUG "tty_release_dev: bad pty pointers\n");
-			return 0;
-		}
-	}
-#endif
 	if (tty->ops->close)
 		tty->ops->close(tty, filp);
 
@@ -1707,8 +1716,8 @@ int tty_release(struct inode *inode, struct file *filp)
 		if (!do_sleep)
 			break;
 
-		printk(KERN_WARNING "tty_release_dev: %s: read/write wait queue "
-				    "active!\n", tty_name(tty, buf));
+		printk(KERN_WARNING "%s: %s: read/write wait queue active!\n",
+				__func__, tty_name(tty, buf));
 		tty_unlock();
 		mutex_unlock(&tty_mutex);
 		schedule();
@@ -1721,15 +1730,14 @@ int tty_release(struct inode *inode, struct file *filp)
 	 */
 	if (pty_master) {
 		if (--o_tty->count < 0) {
-			printk(KERN_WARNING "tty_release_dev: bad pty slave count "
-					    "(%d) for %s\n",
-			       o_tty->count, tty_name(o_tty, buf));
+			printk(KERN_WARNING "%s: bad pty slave count (%d) for %s\n",
+				__func__, o_tty->count, tty_name(o_tty, buf));
 			o_tty->count = 0;
 		}
 	}
 	if (--tty->count < 0) {
-		printk(KERN_WARNING "tty_release_dev: bad tty->count (%d) for %s\n",
-		       tty->count, tty_name(tty, buf));
+		printk(KERN_WARNING "%s: bad tty->count (%d) for %s\n",
+				__func__, tty->count, tty_name(tty, buf));
 		tty->count = 0;
 	}
 
@@ -1778,7 +1786,7 @@ int tty_release(struct inode *inode, struct file *filp)
 	}
 
 #ifdef TTY_DEBUG_HANGUP
-	printk(KERN_DEBUG "freeing tty structure...");
+	printk(KERN_DEBUG "%s: freeing tty structure...\n", __func__);
 #endif
 	/*
 	 * Ask the line discipline code to release its structures
@@ -1798,6 +1806,83 @@ int tty_release(struct inode *inode, struct file *filp)
 }
 
 /**
+ *	tty_open_current_tty - get tty of current task for open
+ *	@device: device number
+ *	@filp: file pointer to tty
+ *	@return: tty of the current task iff @device is /dev/tty
+ *
+ *	We cannot return driver and index like for the other nodes because
+ *	devpts will not work then. It expects inodes to be from devpts FS.
+ */
+static struct tty_struct *tty_open_current_tty(dev_t device, struct file *filp)
+{
+	struct tty_struct *tty;
+
+	if (device != MKDEV(TTYAUX_MAJOR, 0))
+		return NULL;
+
+	tty = get_current_tty();
+	if (!tty)
+		return ERR_PTR(-ENXIO);
+
+	filp->f_flags |= O_NONBLOCK; /* Don't let /dev/tty block */
+	/* noctty = 1; */
+	tty_kref_put(tty);
+	/* FIXME: we put a reference and return a TTY! */
+	return tty;
+}
+
+/**
+ *	tty_lookup_driver - lookup a tty driver for a given device file
+ *	@device: device number
+ *	@filp: file pointer to tty
+ *	@noctty: set if the device should not become a controlling tty
+ *	@index: index for the device in the @return driver
+ *	@return: driver for this inode (with increased refcount)
+ *
+ * 	If @return is not erroneous, the caller is responsible to decrement the
+ * 	refcount by tty_driver_kref_put.
+ *
+ *	Locking: tty_mutex protects get_tty_driver
+ */
+static struct tty_driver *tty_lookup_driver(dev_t device, struct file *filp,
+		int *noctty, int *index)
+{
+	struct tty_driver *driver;
+
+	switch (device) {
+#ifdef CONFIG_VT
+	case MKDEV(TTY_MAJOR, 0): {
+		extern struct tty_driver *console_driver;
+		driver = tty_driver_kref_get(console_driver);
+		*index = fg_console;
+		*noctty = 1;
+		break;
+	}
+#endif
+	case MKDEV(TTYAUX_MAJOR, 1): {
+		struct tty_driver *console_driver = console_device(index);
+		if (console_driver) {
+			driver = tty_driver_kref_get(console_driver);
+			if (driver) {
+				/* Don't let /dev/console block */
+				filp->f_flags |= O_NONBLOCK;
+				*noctty = 1;
+				break;
+			}
+		}
+		return ERR_PTR(-ENODEV);
+	}
+	default:
+		driver = get_tty_driver(device, index);
+		if (!driver)
+			return ERR_PTR(-ENODEV);
+		break;
+	}
+	return driver;
+}
+
+/**
  *	tty_open		-	open a tty device
  *	@inode: inode of device file
  *	@filp: file pointer to tty
@@ -1813,16 +1898,16 @@ int tty_release(struct inode *inode, struct file *filp)
  *	The termios state of a pty is reset on first open so that
  *	settings don't persist across reuse.
  *
- *	Locking: tty_mutex protects tty, get_tty_driver and tty_init_dev work.
+ *	Locking: tty_mutex protects tty, tty_lookup_driver and tty_init_dev.
  *		 tty->count should protect the rest.
  *		 ->siglock protects ->signal/->sighand
  */
 
 static int tty_open(struct inode *inode, struct file *filp)
 {
-	struct tty_struct *tty = NULL;
+	struct tty_struct *tty;
 	int noctty, retval;
-	struct tty_driver *driver;
+	struct tty_driver *driver = NULL;
 	int index;
 	dev_t device = inode->i_rdev;
 	unsigned saved_flags = filp->f_flags;
@@ -1841,66 +1926,22 @@ retry_open:
 	mutex_lock(&tty_mutex);
 	tty_lock();
 
-	if (device == MKDEV(TTYAUX_MAJOR, 0)) {
-		tty = get_current_tty();
-		if (!tty) {
-			tty_unlock();
-			mutex_unlock(&tty_mutex);
-			tty_free_file(filp);
-			return -ENXIO;
-		}
-		driver = tty_driver_kref_get(tty->driver);
-		index = tty->index;
-		filp->f_flags |= O_NONBLOCK; /* Don't let /dev/tty block */
-		/* noctty = 1; */
-		/* FIXME: Should we take a driver reference ? */
-		tty_kref_put(tty);
-		goto got_driver;
-	}
-#ifdef CONFIG_VT
-	if (device == MKDEV(TTY_MAJOR, 0)) {
-		extern struct tty_driver *console_driver;
-		driver = tty_driver_kref_get(console_driver);
-		index = fg_console;
-		noctty = 1;
-		goto got_driver;
-	}
-#endif
-	if (device == MKDEV(TTYAUX_MAJOR, 1)) {
-		struct tty_driver *console_driver = console_device(&index);
-		if (console_driver) {
-			driver = tty_driver_kref_get(console_driver);
-			if (driver) {
-				/* Don't let /dev/console block */
-				filp->f_flags |= O_NONBLOCK;
-				noctty = 1;
-				goto got_driver;
-			}
+	tty = tty_open_current_tty(device, filp);
+	if (IS_ERR(tty)) {
+		retval = PTR_ERR(tty);
+		goto err_unlock;
+	} else if (!tty) {
+		driver = tty_lookup_driver(device, filp, &noctty, &index);
+		if (IS_ERR(driver)) {
+			retval = PTR_ERR(driver);
+			goto err_unlock;
 		}
-		tty_unlock();
-		mutex_unlock(&tty_mutex);
-		tty_free_file(filp);
-		return -ENODEV;
-	}
 
-	driver = get_tty_driver(device, &index);
-	if (!driver) {
-		tty_unlock();
-		mutex_unlock(&tty_mutex);
-		tty_free_file(filp);
-		return -ENODEV;
-	}
-got_driver:
-	if (!tty) {
 		/* check whether we're reopening an existing tty */
 		tty = tty_driver_lookup_tty(driver, inode, index);
-
 		if (IS_ERR(tty)) {
-			tty_unlock();
-			mutex_unlock(&tty_mutex);
-			tty_driver_kref_put(driver);
-			tty_free_file(filp);
-			return PTR_ERR(tty);
+			retval = PTR_ERR(tty);
+			goto err_unlock;
 		}
 	}
 
@@ -1912,21 +1953,22 @@ got_driver:
 		tty = tty_init_dev(driver, index, 0);
 
 	mutex_unlock(&tty_mutex);
-	tty_driver_kref_put(driver);
+	if (driver)
+		tty_driver_kref_put(driver);
 	if (IS_ERR(tty)) {
 		tty_unlock();
-		tty_free_file(filp);
-		return PTR_ERR(tty);
+		retval = PTR_ERR(tty);
+		goto err_file;
 	}
 
 	tty_add_file(tty, filp);
 
-	check_tty_count(tty, "tty_open");
+	check_tty_count(tty, __func__);
 	if (tty->driver->type == TTY_DRIVER_TYPE_PTY &&
 	    tty->driver->subtype == PTY_TYPE_MASTER)
 		noctty = 1;
 #ifdef TTY_DEBUG_HANGUP
-	printk(KERN_DEBUG "opening %s...", tty->name);
+	printk(KERN_DEBUG "%s: opening %s...\n", __func__, tty->name);
 #endif
 	if (tty->ops->open)
 		retval = tty->ops->open(tty, filp);
@@ -1940,8 +1982,8 @@ got_driver:
 
 	if (retval) {
 #ifdef TTY_DEBUG_HANGUP
-		printk(KERN_DEBUG "error %d in opening %s...", retval,
-		       tty->name);
+		printk(KERN_DEBUG "%s: error %d in opening %s...\n", __func__,
+				retval, tty->name);
 #endif
 		tty_unlock(); /* need to call tty_release without BTM */
 		tty_release(inode, filp);
@@ -1976,6 +2018,15 @@ got_driver:
 	tty_unlock();
 	mutex_unlock(&tty_mutex);
 	return 0;
+err_unlock:
+	tty_unlock();
+	mutex_unlock(&tty_mutex);
+	/* after locks to avoid deadlock */
+	if (!IS_ERR_OR_NULL(driver))
+		tty_driver_kref_put(driver);
+err_file:
+	tty_free_file(filp);
+	return retval;
 }
 
 
diff --git a/drivers/tty/tty_ldisc.c b/drivers/tty/tty_ldisc.c
index 8e0924f55446..24b95db75d84 100644
--- a/drivers/tty/tty_ldisc.c
+++ b/drivers/tty/tty_ldisc.c
@@ -1,19 +1,11 @@
 #include <linux/types.h>
-#include <linux/major.h>
 #include <linux/errno.h>
-#include <linux/signal.h>
-#include <linux/fcntl.h>
+#include <linux/kmod.h>
 #include <linux/sched.h>
 #include <linux/interrupt.h>
 #include <linux/tty.h>
 #include <linux/tty_driver.h>
-#include <linux/tty_flip.h>
-#include <linux/devpts_fs.h>
 #include <linux/file.h>
-#include <linux/console.h>
-#include <linux/timer.h>
-#include <linux/ctype.h>
-#include <linux/kd.h>
 #include <linux/mm.h>
 #include <linux/string.h>
 #include <linux/slab.h>
@@ -24,18 +16,8 @@
 #include <linux/device.h>
 #include <linux/wait.h>
 #include <linux/bitops.h>
-#include <linux/delay.h>
 #include <linux/seq_file.h>
-
 #include <linux/uaccess.h>
-#include <asm/system.h>
-
-#include <linux/kbd_kern.h>
-#include <linux/vt_kern.h>
-#include <linux/selection.h>
-
-#include <linux/kmod.h>
-#include <linux/nsproxy.h>
 #include <linux/ratelimit.h>
 
 /*
@@ -558,8 +540,6 @@ static int tty_ldisc_wait_idle(struct tty_struct *tty, long timeout)
 	long ret;
 	ret = wait_event_timeout(tty_ldisc_idle,
 			atomic_read(&tty->ldisc->users) == 1, timeout);
-	if (ret < 0)
-		return ret;
 	return ret > 0 ? 0 : -EBUSY;
 }
 
diff --git a/drivers/tty/vt/consolemap.c b/drivers/tty/vt/consolemap.c
index 45d3e80156d4..a0f3d6c4d39d 100644
--- a/drivers/tty/vt/consolemap.c
+++ b/drivers/tty/vt/consolemap.c
@@ -584,7 +584,7 @@ int con_set_default_unimap(struct vc_data *vc)
 			return 0;
 		dflt->refcount++;
 		*vc->vc_uni_pagedir_loc = (unsigned long)dflt;
-		if (p && --p->refcount) {
+		if (p && !--p->refcount) {
 			con_release_unimap(p);
 			kfree(p);
 		}
diff --git a/drivers/usb/Kconfig b/drivers/usb/Kconfig
index 791f11bed606..75823a1abeb6 100644
--- a/drivers/usb/Kconfig
+++ b/drivers/usb/Kconfig
@@ -48,6 +48,7 @@ config USB_ARCH_HAS_OHCI
 	default y if ARCH_DAVINCI_DA8XX
 	default y if ARCH_CNS3XXX
 	default y if PLAT_SPEAR
+	default y if ARCH_EXYNOS
 	# PPC:
 	default y if STB03xxx
 	default y if PPC_MPC52xx
diff --git a/drivers/usb/Makefile b/drivers/usb/Makefile
index 75eca7645227..53a7bc07dd8d 100644
--- a/drivers/usb/Makefile
+++ b/drivers/usb/Makefile
@@ -6,6 +6,8 @@
 
 obj-$(CONFIG_USB)		+= core/
 
+obj-$(CONFIG_USB_OTG_UTILS)	+= otg/
+
 obj-$(CONFIG_USB_DWC3)		+= dwc3/
 
 obj-$(CONFIG_USB_MON)		+= mon/
@@ -51,7 +53,6 @@ obj-$(CONFIG_USB_SPEEDTOUCH)	+= atm/
 
 obj-$(CONFIG_USB_MUSB_HDRC)	+= musb/
 obj-$(CONFIG_USB_RENESAS_USBHS)	+= renesas_usbhs/
-obj-$(CONFIG_USB_OTG_UTILS)	+= otg/
 obj-$(CONFIG_USB_GADGET)	+= gadget/
 
 obj-$(CONFIG_USB_COMMON)	+= usb-common.o
diff --git a/drivers/usb/c67x00/c67x00-drv.c b/drivers/usb/c67x00/c67x00-drv.c
index 57ae44cd0b88..6f3b6e267398 100644
--- a/drivers/usb/c67x00/c67x00-drv.c
+++ b/drivers/usb/c67x00/c67x00-drv.c
@@ -225,21 +225,10 @@ static struct platform_driver c67x00_driver = {
 		.name = "c67x00",
 	},
 };
-MODULE_ALIAS("platform:c67x00");
-
-static int __init c67x00_init(void)
-{
-	return platform_driver_register(&c67x00_driver);
-}
 
-static void __exit c67x00_exit(void)
-{
-	platform_driver_unregister(&c67x00_driver);
-}
-
-module_init(c67x00_init);
-module_exit(c67x00_exit);
+module_platform_driver(c67x00_driver);
 
 MODULE_AUTHOR("Peter Korsgaard, Jan Veldeman, Grant Likely");
 MODULE_DESCRIPTION("Cypress C67X00 USB Controller Driver");
 MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:c67x00");
diff --git a/drivers/usb/c67x00/c67x00-hcd.c b/drivers/usb/c67x00/c67x00-hcd.c
index d3e1356d091e..75e47b860a53 100644
--- a/drivers/usb/c67x00/c67x00-hcd.c
+++ b/drivers/usb/c67x00/c67x00-hcd.c
@@ -271,7 +271,6 @@ static void c67x00_hcd_irq(struct c67x00_sie *sie, u16 int_status, u16 msg)
 	if (int_status & SOFEOP_FLG(sie->sie_num)) {
 		c67x00_ll_usb_clear_status(sie, SOF_EOP_IRQ_FLG);
 		c67x00_sched_kick(c67x00);
-		set_bit(HCD_FLAG_SAW_IRQ, &hcd->flags);
 	}
 }
 
diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index a8078d0638fa..9543b19d410c 100644
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -58,12 +58,62 @@ static struct usb_driver acm_driver;
 static struct tty_driver *acm_tty_driver;
 static struct acm *acm_table[ACM_TTY_MINORS];
 
-static DEFINE_MUTEX(open_mutex);
+static DEFINE_MUTEX(acm_table_lock);
 
-#define ACM_READY(acm)	(acm && acm->dev && acm->port.count)
+/*
+ * acm_table accessors
+ */
 
-static const struct tty_port_operations acm_port_ops = {
-};
+/*
+ * Look up an ACM structure by index. If found and not disconnected, increment
+ * its refcount and return it with its mutex held.
+ */
+static struct acm *acm_get_by_index(unsigned index)
+{
+	struct acm *acm;
+
+	mutex_lock(&acm_table_lock);
+	acm = acm_table[index];
+	if (acm) {
+		mutex_lock(&acm->mutex);
+		if (acm->disconnected) {
+			mutex_unlock(&acm->mutex);
+			acm = NULL;
+		} else {
+			tty_port_get(&acm->port);
+			mutex_unlock(&acm->mutex);
+		}
+	}
+	mutex_unlock(&acm_table_lock);
+	return acm;
+}
+
+/*
+ * Try to find an available minor number and if found, associate it with 'acm'.
+ */
+static int acm_alloc_minor(struct acm *acm)
+{
+	int minor;
+
+	mutex_lock(&acm_table_lock);
+	for (minor = 0; minor < ACM_TTY_MINORS; minor++) {
+		if (!acm_table[minor]) {
+			acm_table[minor] = acm;
+			break;
+		}
+	}
+	mutex_unlock(&acm_table_lock);
+
+	return minor;
+}
+
+/* Release the minor number associated with 'acm'.  */
+static void acm_release_minor(struct acm *acm)
+{
+	mutex_lock(&acm_table_lock);
+	acm_table[acm->minor] = NULL;
+	mutex_unlock(&acm_table_lock);
+}
 
 /*
  * Functions for ACM control messages.
@@ -267,9 +317,6 @@ static void acm_ctrl_irq(struct urb *urb)
 		goto exit;
 	}
 
-	if (!ACM_READY(acm))
-		goto exit;
-
 	usb_mark_last_busy(acm->dev);
 
 	data = (unsigned char *)(dr + 1);
@@ -429,8 +476,7 @@ static void acm_write_bulk(struct urb *urb)
 	spin_lock_irqsave(&acm->write_lock, flags);
 	acm_write_done(acm, wb);
 	spin_unlock_irqrestore(&acm->write_lock, flags);
-	if (ACM_READY(acm))
-		schedule_work(&acm->work);
+	schedule_work(&acm->work);
 }
 
 static void acm_softint(struct work_struct *work)
@@ -440,8 +486,6 @@ static void acm_softint(struct work_struct *work)
 
 	dev_vdbg(&acm->data->dev, "%s\n", __func__);
 
-	if (!ACM_READY(acm))
-		return;
 	tty = tty_port_tty_get(&acm->port);
 	if (!tty)
 		return;
@@ -453,93 +497,122 @@ static void acm_softint(struct work_struct *work)
  * TTY handlers
  */
 
-static int acm_tty_open(struct tty_struct *tty, struct file *filp)
+static int acm_tty_install(struct tty_driver *driver, struct tty_struct *tty)
 {
 	struct acm *acm;
-	int rv = -ENODEV;
-
-	mutex_lock(&open_mutex);
+	int retval;
 
-	acm = acm_table[tty->index];
-	if (!acm || !acm->dev)
-		goto out;
-	else
-		rv = 0;
+	dev_dbg(tty->dev, "%s\n", __func__);
 
-	dev_dbg(&acm->control->dev, "%s\n", __func__);
+	acm = acm_get_by_index(tty->index);
+	if (!acm)
+		return -ENODEV;
 
-	set_bit(TTY_NO_WRITE_SPLIT, &tty->flags);
+	retval = tty_init_termios(tty);
+	if (retval)
+		goto error_init_termios;
 
 	tty->driver_data = acm;
-	tty_port_tty_set(&acm->port, tty);
 
-	if (usb_autopm_get_interface(acm->control) < 0)
-		goto early_bail;
-	else
-		acm->control->needs_remote_wakeup = 1;
+	/* Final install (we use the default method) */
+	tty_driver_kref_get(driver);
+	tty->count++;
+	driver->ttys[tty->index] = tty;
+
+	return 0;
+
+error_init_termios:
+	tty_port_put(&acm->port);
+	return retval;
+}
+
+static int acm_tty_open(struct tty_struct *tty, struct file *filp)
+{
+	struct acm *acm = tty->driver_data;
+
+	dev_dbg(tty->dev, "%s\n", __func__);
+
+	return tty_port_open(&acm->port, tty, filp);
+}
+
+static int acm_port_activate(struct tty_port *port, struct tty_struct *tty)
+{
+	struct acm *acm = container_of(port, struct acm, port);
+	int retval = -ENODEV;
+
+	dev_dbg(&acm->control->dev, "%s\n", __func__);
 
 	mutex_lock(&acm->mutex);
-	if (acm->port.count++) {
-		mutex_unlock(&acm->mutex);
-		usb_autopm_put_interface(acm->control);
-		goto out;
-	}
+	if (acm->disconnected)
+		goto disconnected;
+
+	retval = usb_autopm_get_interface(acm->control);
+	if (retval)
+		goto error_get_interface;
+
+	/*
+	 * FIXME: Why do we need this? Allocating 64K of physically contiguous
+	 * memory is really nasty...
+	 */
+	set_bit(TTY_NO_WRITE_SPLIT, &tty->flags);
+	acm->control->needs_remote_wakeup = 1;
 
 	acm->ctrlurb->dev = acm->dev;
 	if (usb_submit_urb(acm->ctrlurb, GFP_KERNEL)) {
 		dev_err(&acm->control->dev,
 			"%s - usb_submit_urb(ctrl irq) failed\n", __func__);
-		goto bail_out;
+		goto error_submit_urb;
 	}
 
-	if (0 > acm_set_control(acm, acm->ctrlout = ACM_CTRL_DTR | ACM_CTRL_RTS) &&
+	acm->ctrlout = ACM_CTRL_DTR | ACM_CTRL_RTS;
+	if (acm_set_control(acm, acm->ctrlout) < 0 &&
 	    (acm->ctrl_caps & USB_CDC_CAP_LINE))
-		goto bail_out;
+		goto error_set_control;
 
 	usb_autopm_put_interface(acm->control);
 
 	if (acm_submit_read_urbs(acm, GFP_KERNEL))
-		goto bail_out;
-
-	set_bit(ASYNCB_INITIALIZED, &acm->port.flags);
-	rv = tty_port_block_til_ready(&acm->port, tty, filp);
+		goto error_submit_read_urbs;
 
 	mutex_unlock(&acm->mutex);
-out:
-	mutex_unlock(&open_mutex);
-	return rv;
 
-bail_out:
-	acm->port.count--;
-	mutex_unlock(&acm->mutex);
+	return 0;
+
+error_submit_read_urbs:
+	acm->ctrlout = 0;
+	acm_set_control(acm, acm->ctrlout);
+error_set_control:
+	usb_kill_urb(acm->ctrlurb);
+error_submit_urb:
 	usb_autopm_put_interface(acm->control);
-early_bail:
-	mutex_unlock(&open_mutex);
-	tty_port_tty_set(&acm->port, NULL);
-	return -EIO;
+error_get_interface:
+disconnected:
+	mutex_unlock(&acm->mutex);
+	return retval;
 }
 
-static void acm_tty_unregister(struct acm *acm)
+static void acm_port_destruct(struct tty_port *port)
 {
-	int i;
+	struct acm *acm = container_of(port, struct acm, port);
+
+	dev_dbg(&acm->control->dev, "%s\n", __func__);
 
 	tty_unregister_device(acm_tty_driver, acm->minor);
+	acm_release_minor(acm);
 	usb_put_intf(acm->control);
-	acm_table[acm->minor] = NULL;
-	usb_free_urb(acm->ctrlurb);
-	for (i = 0; i < ACM_NW; i++)
-		usb_free_urb(acm->wb[i].urb);
-	for (i = 0; i < acm->rx_buflimit; i++)
-		usb_free_urb(acm->read_urbs[i]);
 	kfree(acm->country_codes);
 	kfree(acm);
 }
 
-static void acm_port_down(struct acm *acm)
+static void acm_port_shutdown(struct tty_port *port)
 {
+	struct acm *acm = container_of(port, struct acm, port);
 	int i;
 
-	if (acm->dev) {
+	dev_dbg(&acm->control->dev, "%s\n", __func__);
+
+	mutex_lock(&acm->mutex);
+	if (!acm->disconnected) {
 		usb_autopm_get_interface(acm->control);
 		acm_set_control(acm, acm->ctrlout = 0);
 		usb_kill_urb(acm->ctrlurb);
@@ -550,40 +623,28 @@ static void acm_port_down(struct acm *acm)
 		acm->control->needs_remote_wakeup = 0;
 		usb_autopm_put_interface(acm->control);
 	}
+	mutex_unlock(&acm->mutex);
+}
+
+static void acm_tty_cleanup(struct tty_struct *tty)
+{
+	struct acm *acm = tty->driver_data;
+	dev_dbg(&acm->control->dev, "%s\n", __func__);
+	tty_port_put(&acm->port);
 }
 
 static void acm_tty_hangup(struct tty_struct *tty)
 {
 	struct acm *acm = tty->driver_data;
+	dev_dbg(&acm->control->dev, "%s\n", __func__);
 	tty_port_hangup(&acm->port);
-	mutex_lock(&open_mutex);
-	acm_port_down(acm);
-	mutex_unlock(&open_mutex);
 }
 
 static void acm_tty_close(struct tty_struct *tty, struct file *filp)
 {
 	struct acm *acm = tty->driver_data;
-
-	/* Perform the closing process and see if we need to do the hardware
-	   shutdown */
-	if (!acm)
-		return;
-
-	mutex_lock(&open_mutex);
-	if (tty_port_close_start(&acm->port, tty, filp) == 0) {
-		if (!acm->dev) {
-			tty_port_tty_set(&acm->port, NULL);
-			acm_tty_unregister(acm);
-			tty->driver_data = NULL;
-		}
-		mutex_unlock(&open_mutex);
-		return;
-	}
-	acm_port_down(acm);
-	tty_port_close_end(&acm->port, tty);
-	tty_port_tty_set(&acm->port, NULL);
-	mutex_unlock(&open_mutex);
+	dev_dbg(&acm->control->dev, "%s\n", __func__);
+	tty_port_close(&acm->port, tty, filp);
 }
 
 static int acm_tty_write(struct tty_struct *tty,
@@ -595,8 +656,6 @@ static int acm_tty_write(struct tty_struct *tty,
 	int wbn;
 	struct acm_wb *wb;
 
-	if (!ACM_READY(acm))
-		return -EINVAL;
 	if (!count)
 		return 0;
 
@@ -625,8 +684,6 @@ static int acm_tty_write(struct tty_struct *tty,
 static int acm_tty_write_room(struct tty_struct *tty)
 {
 	struct acm *acm = tty->driver_data;
-	if (!ACM_READY(acm))
-		return -EINVAL;
 	/*
 	 * Do not let the line discipline to know that we have a reserve,
 	 * or it might get too enthusiastic.
@@ -637,7 +694,11 @@ static int acm_tty_write_room(struct tty_struct *tty)
 static int acm_tty_chars_in_buffer(struct tty_struct *tty)
 {
 	struct acm *acm = tty->driver_data;
-	if (!ACM_READY(acm))
+	/*
+	 * if the device was unplugged then any remaining characters fell out
+	 * of the connector ;)
+	 */
+	if (acm->disconnected)
 		return 0;
 	/*
 	 * This is inaccurate (overcounts), but it works.
@@ -649,9 +710,6 @@ static void acm_tty_throttle(struct tty_struct *tty)
 {
 	struct acm *acm = tty->driver_data;
 
-	if (!ACM_READY(acm))
-		return;
-
 	spin_lock_irq(&acm->read_lock);
 	acm->throttle_req = 1;
 	spin_unlock_irq(&acm->read_lock);
@@ -662,9 +720,6 @@ static void acm_tty_unthrottle(struct tty_struct *tty)
 	struct acm *acm = tty->driver_data;
 	unsigned int was_throttled;
 
-	if (!ACM_READY(acm))
-		return;
-
 	spin_lock_irq(&acm->read_lock);
 	was_throttled = acm->throttled;
 	acm->throttled = 0;
@@ -679,8 +734,7 @@ static int acm_tty_break_ctl(struct tty_struct *tty, int state)
 {
 	struct acm *acm = tty->driver_data;
 	int retval;
-	if (!ACM_READY(acm))
-		return -EINVAL;
+
 	retval = acm_send_break(acm, state ? 0xffff : 0);
 	if (retval < 0)
 		dev_dbg(&acm->control->dev, "%s - send break failed\n",
@@ -692,9 +746,6 @@ static int acm_tty_tiocmget(struct tty_struct *tty)
 {
 	struct acm *acm = tty->driver_data;
 
-	if (!ACM_READY(acm))
-		return -EINVAL;
-
 	return (acm->ctrlout & ACM_CTRL_DTR ? TIOCM_DTR : 0) |
 	       (acm->ctrlout & ACM_CTRL_RTS ? TIOCM_RTS : 0) |
 	       (acm->ctrlin  & ACM_CTRL_DSR ? TIOCM_DSR : 0) |
@@ -709,9 +760,6 @@ static int acm_tty_tiocmset(struct tty_struct *tty,
 	struct acm *acm = tty->driver_data;
 	unsigned int newctrl;
 
-	if (!ACM_READY(acm))
-		return -EINVAL;
-
 	newctrl = acm->ctrlout;
 	set = (set & TIOCM_DTR ? ACM_CTRL_DTR : 0) |
 					(set & TIOCM_RTS ? ACM_CTRL_RTS : 0);
@@ -728,11 +776,6 @@ static int acm_tty_tiocmset(struct tty_struct *tty,
 static int acm_tty_ioctl(struct tty_struct *tty,
 					unsigned int cmd, unsigned long arg)
 {
-	struct acm *acm = tty->driver_data;
-
-	if (!ACM_READY(acm))
-		return -EINVAL;
-
 	return -ENOIOCTLCMD;
 }
 
@@ -756,9 +799,6 @@ static void acm_tty_set_termios(struct tty_struct *tty,
 	struct usb_cdc_line_coding newline;
 	int newctrl = acm->ctrlout;
 
-	if (!ACM_READY(acm))
-		return;
-
 	newline.dwDTERate = cpu_to_le32(tty_get_baud_rate(tty));
 	newline.bCharFormat = termios->c_cflag & CSTOPB ? 2 : 0;
 	newline.bParityType = termios->c_cflag & PARENB ?
@@ -788,6 +828,12 @@ static void acm_tty_set_termios(struct tty_struct *tty,
 	}
 }
 
+static const struct tty_port_operations acm_port_ops = {
+	.shutdown = acm_port_shutdown,
+	.activate = acm_port_activate,
+	.destruct = acm_port_destruct,
+};
+
 /*
  * USB probe and disconnect routines.
  */
@@ -1047,12 +1093,6 @@ skip_normal_probe:
 	}
 made_compressed_probe:
 	dev_dbg(&intf->dev, "interfaces are valid\n");
-	for (minor = 0; minor < ACM_TTY_MINORS && acm_table[minor]; minor++);
-
-	if (minor == ACM_TTY_MINORS) {
-		dev_err(&intf->dev, "no more free acm devices\n");
-		return -ENODEV;
-	}
 
 	acm = kzalloc(sizeof(struct acm), GFP_KERNEL);
 	if (acm == NULL) {
@@ -1060,6 +1100,13 @@ made_compressed_probe:
 		goto alloc_fail;
 	}
 
+	minor = acm_alloc_minor(acm);
+	if (minor == ACM_TTY_MINORS) {
+		dev_err(&intf->dev, "no more free acm devices\n");
+		kfree(acm);
+		return -ENODEV;
+	}
+
 	ctrlsize = usb_endpoint_maxp(epctrl);
 	readsize = usb_endpoint_maxp(epread) *
 				(quirks == SINGLE_RX_URB ? 1 : 2);
@@ -1183,6 +1230,8 @@ made_compressed_probe:
 		i = device_create_file(&intf->dev, &dev_attr_wCountryCodes);
 		if (i < 0) {
 			kfree(acm->country_codes);
+			acm->country_codes = NULL;
+			acm->country_code_size = 0;
 			goto skip_countries;
 		}
 
@@ -1191,6 +1240,8 @@ made_compressed_probe:
 		if (i < 0) {
 			device_remove_file(&intf->dev, &dev_attr_wCountryCodes);
 			kfree(acm->country_codes);
+			acm->country_codes = NULL;
+			acm->country_code_size = 0;
 			goto skip_countries;
 		}
 	}
@@ -1218,8 +1269,6 @@ skip_countries:
 	usb_get_intf(control_interface);
 	tty_register_device(acm_tty_driver, minor, &control_interface->dev);
 
-	acm_table[minor] = acm;
-
 	return 0;
 alloc_fail7:
 	for (i = 0; i < ACM_NW; i++)
@@ -1234,6 +1283,7 @@ alloc_fail5:
 alloc_fail4:
 	usb_free_coherent(usb_dev, ctrlsize, acm->ctrl_buffer, acm->ctrl_dma);
 alloc_fail2:
+	acm_release_minor(acm);
 	kfree(acm);
 alloc_fail:
 	return -ENOMEM;
@@ -1259,12 +1309,16 @@ static void acm_disconnect(struct usb_interface *intf)
 	struct acm *acm = usb_get_intfdata(intf);
 	struct usb_device *usb_dev = interface_to_usbdev(intf);
 	struct tty_struct *tty;
+	int i;
+
+	dev_dbg(&intf->dev, "%s\n", __func__);
 
 	/* sibling interface is already cleaning up */
 	if (!acm)
 		return;
 
-	mutex_lock(&open_mutex);
+	mutex_lock(&acm->mutex);
+	acm->disconnected = true;
 	if (acm->country_codes) {
 		device_remove_file(&acm->control->dev,
 				&dev_attr_wCountryCodes);
@@ -1272,33 +1326,32 @@ static void acm_disconnect(struct usb_interface *intf)
 				&dev_attr_iCountryCodeRelDate);
 	}
 	device_remove_file(&acm->control->dev, &dev_attr_bmCapabilities);
-	acm->dev = NULL;
 	usb_set_intfdata(acm->control, NULL);
 	usb_set_intfdata(acm->data, NULL);
+	mutex_unlock(&acm->mutex);
+
+	tty = tty_port_tty_get(&acm->port);
+	if (tty) {
+		tty_vhangup(tty);
+		tty_kref_put(tty);
+	}
 
 	stop_data_traffic(acm);
 
+	usb_free_urb(acm->ctrlurb);
+	for (i = 0; i < ACM_NW; i++)
+		usb_free_urb(acm->wb[i].urb);
+	for (i = 0; i < acm->rx_buflimit; i++)
+		usb_free_urb(acm->read_urbs[i]);
 	acm_write_buffers_free(acm);
-	usb_free_coherent(usb_dev, acm->ctrlsize, acm->ctrl_buffer,
-			  acm->ctrl_dma);
+	usb_free_coherent(usb_dev, acm->ctrlsize, acm->ctrl_buffer, acm->ctrl_dma);
 	acm_read_buffers_free(acm);
 
 	if (!acm->combined_interfaces)
 		usb_driver_release_interface(&acm_driver, intf == acm->control ?
 					acm->data : acm->control);
 
-	if (acm->port.count == 0) {
-		acm_tty_unregister(acm);
-		mutex_unlock(&open_mutex);
-		return;
-	}
-
-	mutex_unlock(&open_mutex);
-	tty = tty_port_tty_get(&acm->port);
-	if (tty) {
-		tty_hangup(tty);
-		tty_kref_put(tty);
-	}
+	tty_port_put(&acm->port);
 }
 
 #ifdef CONFIG_PM
@@ -1325,16 +1378,10 @@ static int acm_suspend(struct usb_interface *intf, pm_message_t message)
 
 	if (cnt)
 		return 0;
-	/*
-	we treat opened interfaces differently,
-	we must guard against open
-	*/
-	mutex_lock(&acm->mutex);
 
-	if (acm->port.count)
+	if (test_bit(ASYNCB_INITIALIZED, &acm->port.flags))
 		stop_data_traffic(acm);
 
-	mutex_unlock(&acm->mutex);
 	return 0;
 }
 
@@ -1353,8 +1400,7 @@ static int acm_resume(struct usb_interface *intf)
 	if (cnt)
 		return 0;
 
-	mutex_lock(&acm->mutex);
-	if (acm->port.count) {
+	if (test_bit(ASYNCB_INITIALIZED, &acm->port.flags)) {
 		rv = usb_submit_urb(acm->ctrlurb, GFP_NOIO);
 
 		spin_lock_irq(&acm->write_lock);
@@ -1378,7 +1424,6 @@ static int acm_resume(struct usb_interface *intf)
 	}
 
 err_out:
-	mutex_unlock(&acm->mutex);
 	return rv;
 }
 
@@ -1387,15 +1432,14 @@ static int acm_reset_resume(struct usb_interface *intf)
 	struct acm *acm = usb_get_intfdata(intf);
 	struct tty_struct *tty;
 
-	mutex_lock(&acm->mutex);
-	if (acm->port.count) {
+	if (test_bit(ASYNCB_INITIALIZED, &acm->port.flags)) {
 		tty = tty_port_tty_get(&acm->port);
 		if (tty) {
 			tty_hangup(tty);
 			tty_kref_put(tty);
 		}
 	}
-	mutex_unlock(&acm->mutex);
+
 	return acm_resume(intf);
 }
 
@@ -1604,8 +1648,10 @@ static struct usb_driver acm_driver = {
  */
 
 static const struct tty_operations acm_ops = {
+	.install =		acm_tty_install,
 	.open =			acm_tty_open,
 	.close =		acm_tty_close,
+	.cleanup =		acm_tty_cleanup,
 	.hangup =		acm_tty_hangup,
 	.write =		acm_tty_write,
 	.write_room =		acm_tty_write_room,
diff --git a/drivers/usb/class/cdc-acm.h b/drivers/usb/class/cdc-acm.h
index ca7937f26e27..35ef887b7417 100644
--- a/drivers/usb/class/cdc-acm.h
+++ b/drivers/usb/class/cdc-acm.h
@@ -101,6 +101,7 @@ struct acm {
 	int transmitting;
 	spinlock_t write_lock;
 	struct mutex mutex;
+	bool disconnected;
 	struct usb_cdc_line_coding line;		/* bits, stop, parity */
 	struct work_struct work;			/* work queue entry for line discipline waking up */
 	unsigned int ctrlin;				/* input control lines (DCD, DSR, RI, break, overruns) */
diff --git a/drivers/usb/core/devio.c b/drivers/usb/core/devio.c
index e3beaf229ee3..3af5e2dd1d82 100644
--- a/drivers/usb/core/devio.c
+++ b/drivers/usb/core/devio.c
@@ -86,6 +86,7 @@ struct async {
 	void __user *userbuffer;
 	void __user *userurb;
 	struct urb *urb;
+	unsigned int mem_usage;
 	int status;
 	u32 secid;
 	u8 bulk_addr;
@@ -108,8 +109,44 @@ enum snoop_when {
 
 #define USB_DEVICE_DEV		MKDEV(USB_DEVICE_MAJOR, 0)
 
-#define	MAX_USBFS_BUFFER_SIZE	16384
+/* Limit on the total amount of memory we can allocate for transfers */
+static unsigned usbfs_memory_mb = 16;
+module_param(usbfs_memory_mb, uint, 0644);
+MODULE_PARM_DESC(usbfs_memory_mb,
+		"maximum MB allowed for usbfs buffers (0 = no limit)");
 
+/* Hard limit, necessary to avoid aithmetic overflow */
+#define USBFS_XFER_MAX		(UINT_MAX / 2 - 1000000)
+
+static atomic_t usbfs_memory_usage;	/* Total memory currently allocated */
+
+/* Check whether it's okay to allocate more memory for a transfer */
+static int usbfs_increase_memory_usage(unsigned amount)
+{
+	unsigned lim;
+
+	/*
+	 * Convert usbfs_memory_mb to bytes, avoiding overflows.
+	 * 0 means use the hard limit (effectively unlimited).
+	 */
+	lim = ACCESS_ONCE(usbfs_memory_mb);
+	if (lim == 0 || lim > (USBFS_XFER_MAX >> 20))
+		lim = USBFS_XFER_MAX;
+	else
+		lim <<= 20;
+
+	atomic_add(amount, &usbfs_memory_usage);
+	if (atomic_read(&usbfs_memory_usage) <= lim)
+		return 0;
+	atomic_sub(amount, &usbfs_memory_usage);
+	return -ENOMEM;
+}
+
+/* Memory for a transfer is being deallocated */
+static void usbfs_decrease_memory_usage(unsigned amount)
+{
+	atomic_sub(amount, &usbfs_memory_usage);
+}
 
 static int connected(struct dev_state *ps)
 {
@@ -249,10 +286,12 @@ static struct async *alloc_async(unsigned int numisoframes)
 static void free_async(struct async *as)
 {
 	put_pid(as->pid);
-	put_cred(as->cred);
+	if (as->cred)
+		put_cred(as->cred);
 	kfree(as->urb->transfer_buffer);
 	kfree(as->urb->setup_packet);
 	usb_free_urb(as->urb);
+	usbfs_decrease_memory_usage(as->mem_usage);
 	kfree(as);
 }
 
@@ -792,9 +831,15 @@ static int proc_control(struct dev_state *ps, void __user *arg)
 	wLength = ctrl.wLength;		/* To suppress 64k PAGE_SIZE warning */
 	if (wLength > PAGE_SIZE)
 		return -EINVAL;
+	ret = usbfs_increase_memory_usage(PAGE_SIZE + sizeof(struct urb) +
+			sizeof(struct usb_ctrlrequest));
+	if (ret)
+		return ret;
 	tbuf = (unsigned char *)__get_free_page(GFP_KERNEL);
-	if (!tbuf)
-		return -ENOMEM;
+	if (!tbuf) {
+		ret = -ENOMEM;
+		goto done;
+	}
 	tmo = ctrl.timeout;
 	snoop(&dev->dev, "control urb: bRequestType=%02x "
 		"bRequest=%02x wValue=%04x "
@@ -806,8 +851,8 @@ static int proc_control(struct dev_state *ps, void __user *arg)
 	if (ctrl.bRequestType & 0x80) {
 		if (ctrl.wLength && !access_ok(VERIFY_WRITE, ctrl.data,
 					       ctrl.wLength)) {
-			free_page((unsigned long)tbuf);
-			return -EINVAL;
+			ret = -EINVAL;
+			goto done;
 		}
 		pipe = usb_rcvctrlpipe(dev, 0);
 		snoop_urb(dev, NULL, pipe, ctrl.wLength, tmo, SUBMIT, NULL, 0);
@@ -821,15 +866,15 @@ static int proc_control(struct dev_state *ps, void __user *arg)
 			  tbuf, max(i, 0));
 		if ((i > 0) && ctrl.wLength) {
 			if (copy_to_user(ctrl.data, tbuf, i)) {
-				free_page((unsigned long)tbuf);
-				return -EFAULT;
+				ret = -EFAULT;
+				goto done;
 			}
 		}
 	} else {
 		if (ctrl.wLength) {
 			if (copy_from_user(tbuf, ctrl.data, ctrl.wLength)) {
-				free_page((unsigned long)tbuf);
-				return -EFAULT;
+				ret = -EFAULT;
+				goto done;
 			}
 		}
 		pipe = usb_sndctrlpipe(dev, 0);
@@ -843,14 +888,18 @@ static int proc_control(struct dev_state *ps, void __user *arg)
 		usb_lock_device(dev);
 		snoop_urb(dev, NULL, pipe, max(i, 0), min(i, 0), COMPLETE, NULL, 0);
 	}
-	free_page((unsigned long)tbuf);
 	if (i < 0 && i != -EPIPE) {
 		dev_printk(KERN_DEBUG, &dev->dev, "usbfs: USBDEVFS_CONTROL "
 			   "failed cmd %s rqt %u rq %u len %u ret %d\n",
 			   current->comm, ctrl.bRequestType, ctrl.bRequest,
 			   ctrl.wLength, i);
 	}
-	return i;
+	ret = i;
+ done:
+	free_page((unsigned long) tbuf);
+	usbfs_decrease_memory_usage(PAGE_SIZE + sizeof(struct urb) +
+			sizeof(struct usb_ctrlrequest));
+	return ret;
 }
 
 static int proc_bulk(struct dev_state *ps, void __user *arg)
@@ -877,15 +926,20 @@ static int proc_bulk(struct dev_state *ps, void __user *arg)
 	if (!usb_maxpacket(dev, pipe, !(bulk.ep & USB_DIR_IN)))
 		return -EINVAL;
 	len1 = bulk.len;
-	if (len1 > MAX_USBFS_BUFFER_SIZE)
+	if (len1 >= USBFS_XFER_MAX)
 		return -EINVAL;
-	if (!(tbuf = kmalloc(len1, GFP_KERNEL)))
-		return -ENOMEM;
+	ret = usbfs_increase_memory_usage(len1 + sizeof(struct urb));
+	if (ret)
+		return ret;
+	if (!(tbuf = kmalloc(len1, GFP_KERNEL))) {
+		ret = -ENOMEM;
+		goto done;
+	}
 	tmo = bulk.timeout;
 	if (bulk.ep & 0x80) {
 		if (len1 && !access_ok(VERIFY_WRITE, bulk.data, len1)) {
-			kfree(tbuf);
-			return -EINVAL;
+			ret = -EINVAL;
+			goto done;
 		}
 		snoop_urb(dev, NULL, pipe, len1, tmo, SUBMIT, NULL, 0);
 
@@ -896,15 +950,15 @@ static int proc_bulk(struct dev_state *ps, void __user *arg)
 
 		if (!i && len2) {
 			if (copy_to_user(bulk.data, tbuf, len2)) {
-				kfree(tbuf);
-				return -EFAULT;
+				ret = -EFAULT;
+				goto done;
 			}
 		}
 	} else {
 		if (len1) {
 			if (copy_from_user(tbuf, bulk.data, len1)) {
-				kfree(tbuf);
-				return -EFAULT;
+				ret = -EFAULT;
+				goto done;
 			}
 		}
 		snoop_urb(dev, NULL, pipe, len1, tmo, SUBMIT, tbuf, len1);
@@ -914,10 +968,11 @@ static int proc_bulk(struct dev_state *ps, void __user *arg)
 		usb_lock_device(dev);
 		snoop_urb(dev, NULL, pipe, len2, i, COMPLETE, NULL, 0);
 	}
+	ret = (i < 0 ? i : len2);
+ done:
 	kfree(tbuf);
-	if (i < 0)
-		return i;
-	return len2;
+	usbfs_decrease_memory_usage(len1 + sizeof(struct urb));
+	return ret;
 }
 
 static int proc_resetep(struct dev_state *ps, void __user *arg)
@@ -1062,7 +1117,7 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
 {
 	struct usbdevfs_iso_packet_desc *isopkt = NULL;
 	struct usb_host_endpoint *ep;
-	struct async *as;
+	struct async *as = NULL;
 	struct usb_ctrlrequest *dr = NULL;
 	unsigned int u, totlen, isofrmlen;
 	int ret, ifnum = -1;
@@ -1095,32 +1150,30 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
 	}
 	if (!ep)
 		return -ENOENT;
+
+	u = 0;
 	switch(uurb->type) {
 	case USBDEVFS_URB_TYPE_CONTROL:
 		if (!usb_endpoint_xfer_control(&ep->desc))
 			return -EINVAL;
-		/* min 8 byte setup packet,
-		 * max 8 byte setup plus an arbitrary data stage */
-		if (uurb->buffer_length < 8 ||
-		    uurb->buffer_length > (8 + MAX_USBFS_BUFFER_SIZE))
+		/* min 8 byte setup packet */
+		if (uurb->buffer_length < 8)
 			return -EINVAL;
 		dr = kmalloc(sizeof(struct usb_ctrlrequest), GFP_KERNEL);
 		if (!dr)
 			return -ENOMEM;
 		if (copy_from_user(dr, uurb->buffer, 8)) {
-			kfree(dr);
-			return -EFAULT;
+			ret = -EFAULT;
+			goto error;
 		}
 		if (uurb->buffer_length < (le16_to_cpup(&dr->wLength) + 8)) {
-			kfree(dr);
-			return -EINVAL;
+			ret = -EINVAL;
+			goto error;
 		}
 		ret = check_ctrlrecip(ps, dr->bRequestType, dr->bRequest,
 				      le16_to_cpup(&dr->wIndex));
-		if (ret) {
-			kfree(dr);
-			return ret;
-		}
+		if (ret)
+			goto error;
 		uurb->number_of_packets = 0;
 		uurb->buffer_length = le16_to_cpup(&dr->wLength);
 		uurb->buffer += 8;
@@ -1138,6 +1191,7 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
 			__le16_to_cpup(&dr->wValue),
 			__le16_to_cpup(&dr->wIndex),
 			__le16_to_cpup(&dr->wLength));
+		u = sizeof(struct usb_ctrlrequest);
 		break;
 
 	case USBDEVFS_URB_TYPE_BULK:
@@ -1151,8 +1205,6 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
 			goto interrupt_urb;
 		}
 		uurb->number_of_packets = 0;
-		if (uurb->buffer_length > MAX_USBFS_BUFFER_SIZE)
-			return -EINVAL;
 		break;
 
 	case USBDEVFS_URB_TYPE_INTERRUPT:
@@ -1160,8 +1212,6 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
 			return -EINVAL;
  interrupt_urb:
 		uurb->number_of_packets = 0;
-		if (uurb->buffer_length > MAX_USBFS_BUFFER_SIZE)
-			return -EINVAL;
 		break;
 
 	case USBDEVFS_URB_TYPE_ISO:
@@ -1176,50 +1226,53 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
 		if (!(isopkt = kmalloc(isofrmlen, GFP_KERNEL)))
 			return -ENOMEM;
 		if (copy_from_user(isopkt, iso_frame_desc, isofrmlen)) {
-			kfree(isopkt);
-			return -EFAULT;
+			ret = -EFAULT;
+			goto error;
 		}
 		for (totlen = u = 0; u < uurb->number_of_packets; u++) {
 			/* arbitrary limit,
 			 * sufficient for USB 2.0 high-bandwidth iso */
 			if (isopkt[u].length > 8192) {
-				kfree(isopkt);
-				return -EINVAL;
+				ret = -EINVAL;
+				goto error;
 			}
 			totlen += isopkt[u].length;
 		}
-		/* 3072 * 64 microframes */
-		if (totlen > 196608) {
-			kfree(isopkt);
-			return -EINVAL;
-		}
+		u *= sizeof(struct usb_iso_packet_descriptor);
 		uurb->buffer_length = totlen;
 		break;
 
 	default:
 		return -EINVAL;
 	}
+
+	if (uurb->buffer_length >= USBFS_XFER_MAX) {
+		ret = -EINVAL;
+		goto error;
+	}
 	if (uurb->buffer_length > 0 &&
 			!access_ok(is_in ? VERIFY_WRITE : VERIFY_READ,
 				uurb->buffer, uurb->buffer_length)) {
-		kfree(isopkt);
-		kfree(dr);
-		return -EFAULT;
+		ret = -EFAULT;
+		goto error;
 	}
 	as = alloc_async(uurb->number_of_packets);
 	if (!as) {
-		kfree(isopkt);
-		kfree(dr);
-		return -ENOMEM;
+		ret = -ENOMEM;
+		goto error;
 	}
+	u += sizeof(struct async) + sizeof(struct urb) + uurb->buffer_length;
+	ret = usbfs_increase_memory_usage(u);
+	if (ret)
+		goto error;
+	as->mem_usage = u;
+
 	if (uurb->buffer_length > 0) {
 		as->urb->transfer_buffer = kmalloc(uurb->buffer_length,
 				GFP_KERNEL);
 		if (!as->urb->transfer_buffer) {
-			kfree(isopkt);
-			kfree(dr);
-			free_async(as);
-			return -ENOMEM;
+			ret = -ENOMEM;
+			goto error;
 		}
 		/* Isochronous input data may end up being discontiguous
 		 * if some of the packets are short.  Clear the buffer so
@@ -1253,6 +1306,7 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
 
 	as->urb->transfer_buffer_length = uurb->buffer_length;
 	as->urb->setup_packet = (unsigned char *)dr;
+	dr = NULL;
 	as->urb->start_frame = uurb->start_frame;
 	as->urb->number_of_packets = uurb->number_of_packets;
 	if (uurb->type == USBDEVFS_URB_TYPE_ISO ||
@@ -1268,6 +1322,7 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
 		totlen += isopkt[u].length;
 	}
 	kfree(isopkt);
+	isopkt = NULL;
 	as->ps = ps;
 	as->userurb = arg;
 	if (is_in && uurb->buffer_length > 0)
@@ -1282,8 +1337,8 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
 	if (!is_in && uurb->buffer_length > 0) {
 		if (copy_from_user(as->urb->transfer_buffer, uurb->buffer,
 				uurb->buffer_length)) {
-			free_async(as);
-			return -EFAULT;
+			ret = -EFAULT;
+			goto error;
 		}
 	}
 	snoop_urb(ps->dev, as->userurb, as->urb->pipe,
@@ -1329,10 +1384,16 @@ static int proc_do_submiturb(struct dev_state *ps, struct usbdevfs_urb *uurb,
 		snoop_urb(ps->dev, as->userurb, as->urb->pipe,
 				0, ret, COMPLETE, NULL, 0);
 		async_removepending(as);
-		free_async(as);
-		return ret;
+		goto error;
 	}
 	return 0;
+
+ error:
+	kfree(isopkt);
+	kfree(dr);
+	if (as)
+		free_async(as);
+	return ret;
 }
 
 static int proc_submiturb(struct dev_state *ps, void __user *arg)
diff --git a/drivers/usb/core/driver.c b/drivers/usb/core/driver.c
index 45887a0ff873..d40ff9568813 100644
--- a/drivers/usb/core/driver.c
+++ b/drivers/usb/core/driver.c
@@ -45,10 +45,12 @@ ssize_t usb_store_new_id(struct usb_dynids *dynids,
 	struct usb_dynid *dynid;
 	u32 idVendor = 0;
 	u32 idProduct = 0;
+	unsigned int bInterfaceClass = 0;
 	int fields = 0;
 	int retval = 0;
 
-	fields = sscanf(buf, "%x %x", &idVendor, &idProduct);
+	fields = sscanf(buf, "%x %x %x", &idVendor, &idProduct,
+					&bInterfaceClass);
 	if (fields < 2)
 		return -EINVAL;
 
@@ -60,6 +62,10 @@ ssize_t usb_store_new_id(struct usb_dynids *dynids,
 	dynid->id.idVendor = idVendor;
 	dynid->id.idProduct = idProduct;
 	dynid->id.match_flags = USB_DEVICE_ID_MATCH_DEVICE;
+	if (fields == 3) {
+		dynid->id.bInterfaceClass = (u8)bInterfaceClass;
+		dynid->id.match_flags |= USB_DEVICE_ID_MATCH_INT_CLASS;
+	}
 
 	spin_lock(&dynids->lock);
 	list_add_tail(&dynid->node, &dynids->list);
@@ -1073,17 +1079,10 @@ static int usb_suspend_interface(struct usb_device *udev,
 		goto done;
 	driver = to_usb_driver(intf->dev.driver);
 
-	if (driver->suspend) {
-		status = driver->suspend(intf, msg);
-		if (status && !PMSG_IS_AUTO(msg))
-			dev_err(&intf->dev, "%s error %d\n",
-					"suspend", status);
-	} else {
-		/* Later we will unbind the driver and reprobe */
-		intf->needs_binding = 1;
-		dev_warn(&intf->dev, "no %s for driver %s?\n",
-				"suspend", driver->name);
-	}
+	/* at this time we know the driver supports suspend */
+	status = driver->suspend(intf, msg);
+	if (status && !PMSG_IS_AUTO(msg))
+		dev_err(&intf->dev, "suspend error %d\n", status);
 
  done:
 	dev_vdbg(&intf->dev, "%s: status %d\n", __func__, status);
@@ -1132,16 +1131,9 @@ static int usb_resume_interface(struct usb_device *udev,
 					"reset_resume", driver->name);
 		}
 	} else {
-		if (driver->resume) {
-			status = driver->resume(intf);
-			if (status)
-				dev_err(&intf->dev, "%s error %d\n",
-						"resume", status);
-		} else {
-			intf->needs_binding = 1;
-			dev_warn(&intf->dev, "no %s for driver %s?\n",
-					"resume", driver->name);
-		}
+		status = driver->resume(intf);
+		if (status)
+			dev_err(&intf->dev, "resume error %d\n", status);
 	}
 
 done:
diff --git a/drivers/usb/core/hcd-pci.c b/drivers/usb/core/hcd-pci.c
index a004db35f6d0..d136b8f4c8a7 100644
--- a/drivers/usb/core/hcd-pci.c
+++ b/drivers/usb/core/hcd-pci.c
@@ -453,10 +453,6 @@ static int resume_common(struct device *dev, int event)
 
 	pci_set_master(pci_dev);
 
-	clear_bit(HCD_FLAG_SAW_IRQ, &hcd->flags);
-	if (hcd->shared_hcd)
-		clear_bit(HCD_FLAG_SAW_IRQ, &hcd->shared_hcd->flags);
-
 	if (hcd->driver->pci_resume && !HCD_DEAD(hcd)) {
 		if (event != PM_EVENT_AUTO_RESUME)
 			wait_for_companions(pci_dev, hcd);
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 13222d352a61..eb19cba34ac9 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -658,7 +658,7 @@ error:
 				len > offsetof(struct usb_device_descriptor,
 						bDeviceProtocol))
 			((struct usb_device_descriptor *) ubuf)->
-					bDeviceProtocol = 1;
+				bDeviceProtocol = USB_HUB_PR_HS_SINGLE_TT;
 	}
 
 	/* any errors get returned through the urb completion */
@@ -1168,20 +1168,6 @@ int usb_hcd_check_unlink_urb(struct usb_hcd *hcd, struct urb *urb,
 	if (urb->unlinked)
 		return -EBUSY;
 	urb->unlinked = status;
-
-	/* IRQ setup can easily be broken so that USB controllers
-	 * never get completion IRQs ... maybe even the ones we need to
-	 * finish unlinking the initial failed usb_set_address()
-	 * or device descriptor fetch.
-	 */
-	if (!HCD_SAW_IRQ(hcd) && !is_root_hub(urb->dev)) {
-		dev_warn(hcd->self.controller, "Unlink after no-IRQ?  "
-			"Controller is probably using the wrong IRQ.\n");
-		set_bit(HCD_FLAG_SAW_IRQ, &hcd->flags);
-		if (hcd->shared_hcd)
-			set_bit(HCD_FLAG_SAW_IRQ, &hcd->shared_hcd->flags);
-	}
-
 	return 0;
 }
 EXPORT_SYMBOL_GPL(usb_hcd_check_unlink_urb);
@@ -1412,11 +1398,10 @@ int usb_hcd_map_urb_for_dma(struct usb_hcd *hcd, struct urb *urb,
 					ret = -EAGAIN;
 				else
 					urb->transfer_flags |= URB_DMA_MAP_SG;
-				if (n != urb->num_sgs) {
-					urb->num_sgs = n;
+				urb->num_mapped_sgs = n;
+				if (n != urb->num_sgs)
 					urb->transfer_flags |=
 							URB_DMA_SG_COMBINED;
-				}
 			} else if (urb->sg) {
 				struct scatterlist *sg = urb->sg;
 				urb->transfer_dma = dma_map_page(
@@ -2148,16 +2133,12 @@ irqreturn_t usb_hcd_irq (int irq, void *__hcd)
 	 */
 	local_irq_save(flags);
 
-	if (unlikely(HCD_DEAD(hcd) || !HCD_HW_ACCESSIBLE(hcd))) {
+	if (unlikely(HCD_DEAD(hcd) || !HCD_HW_ACCESSIBLE(hcd)))
 		rc = IRQ_NONE;
-	} else if (hcd->driver->irq(hcd) == IRQ_NONE) {
+	else if (hcd->driver->irq(hcd) == IRQ_NONE)
 		rc = IRQ_NONE;
-	} else {
-		set_bit(HCD_FLAG_SAW_IRQ, &hcd->flags);
-		if (hcd->shared_hcd)
-			set_bit(HCD_FLAG_SAW_IRQ, &hcd->shared_hcd->flags);
+	else
 		rc = IRQ_HANDLED;
-	}
 
 	local_irq_restore(flags);
 	return rc;
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 79781461eec9..79d339e2e700 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -84,7 +84,7 @@ struct usb_hub {
 
 static inline int hub_is_superspeed(struct usb_device *hdev)
 {
-	return (hdev->descriptor.bDeviceProtocol == 3);
+	return (hdev->descriptor.bDeviceProtocol == USB_HUB_PR_SS);
 }
 
 /* Protect struct usb_device->state and ->children members
@@ -1041,58 +1041,58 @@ static int hub_configure(struct usb_hub *hub,
 		dev_dbg(hub_dev, "standalone hub\n");
 
 	switch (wHubCharacteristics & HUB_CHAR_LPSM) {
-		case 0x00:
-			dev_dbg(hub_dev, "ganged power switching\n");
-			break;
-		case 0x01:
-			dev_dbg(hub_dev, "individual port power switching\n");
-			break;
-		case 0x02:
-		case 0x03:
-			dev_dbg(hub_dev, "no power switching (usb 1.0)\n");
-			break;
+	case HUB_CHAR_COMMON_LPSM:
+		dev_dbg(hub_dev, "ganged power switching\n");
+		break;
+	case HUB_CHAR_INDV_PORT_LPSM:
+		dev_dbg(hub_dev, "individual port power switching\n");
+		break;
+	case HUB_CHAR_NO_LPSM:
+	case HUB_CHAR_LPSM:
+		dev_dbg(hub_dev, "no power switching (usb 1.0)\n");
+		break;
 	}
 
 	switch (wHubCharacteristics & HUB_CHAR_OCPM) {
-		case 0x00:
-			dev_dbg(hub_dev, "global over-current protection\n");
-			break;
-		case 0x08:
-			dev_dbg(hub_dev, "individual port over-current protection\n");
-			break;
-		case 0x10:
-		case 0x18:
-			dev_dbg(hub_dev, "no over-current protection\n");
-                        break;
+	case HUB_CHAR_COMMON_OCPM:
+		dev_dbg(hub_dev, "global over-current protection\n");
+		break;
+	case HUB_CHAR_INDV_PORT_OCPM:
+		dev_dbg(hub_dev, "individual port over-current protection\n");
+		break;
+	case HUB_CHAR_NO_OCPM:
+	case HUB_CHAR_OCPM:
+		dev_dbg(hub_dev, "no over-current protection\n");
+		break;
 	}
 
 	spin_lock_init (&hub->tt.lock);
 	INIT_LIST_HEAD (&hub->tt.clear_list);
 	INIT_WORK(&hub->tt.clear_work, hub_tt_work);
 	switch (hdev->descriptor.bDeviceProtocol) {
-		case 0:
-			break;
-		case 1:
-			dev_dbg(hub_dev, "Single TT\n");
-			hub->tt.hub = hdev;
-			break;
-		case 2:
-			ret = usb_set_interface(hdev, 0, 1);
-			if (ret == 0) {
-				dev_dbg(hub_dev, "TT per port\n");
-				hub->tt.multi = 1;
-			} else
-				dev_err(hub_dev, "Using single TT (err %d)\n",
-					ret);
-			hub->tt.hub = hdev;
-			break;
-		case 3:
-			/* USB 3.0 hubs don't have a TT */
-			break;
-		default:
-			dev_dbg(hub_dev, "Unrecognized hub protocol %d\n",
-				hdev->descriptor.bDeviceProtocol);
-			break;
+	case USB_HUB_PR_FS:
+		break;
+	case USB_HUB_PR_HS_SINGLE_TT:
+		dev_dbg(hub_dev, "Single TT\n");
+		hub->tt.hub = hdev;
+		break;
+	case USB_HUB_PR_HS_MULTI_TT:
+		ret = usb_set_interface(hdev, 0, 1);
+		if (ret == 0) {
+			dev_dbg(hub_dev, "TT per port\n");
+			hub->tt.multi = 1;
+		} else
+			dev_err(hub_dev, "Using single TT (err %d)\n",
+				ret);
+		hub->tt.hub = hdev;
+		break;
+	case USB_HUB_PR_SS:
+		/* USB 3.0 hubs don't have a TT */
+		break;
+	default:
+		dev_dbg(hub_dev, "Unrecognized hub protocol %d\n",
+			hdev->descriptor.bDeviceProtocol);
+		break;
 	}
 
 	/* Note 8 FS bit times == (8 bits / 12000000 bps) ~= 666ns */
@@ -1360,7 +1360,6 @@ descriptor_error:
 	return -ENODEV;
 }
 
-/* No BKL needed */
 static int
 hub_ioctl(struct usb_interface *intf, unsigned int code, void *user_data)
 {
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index ecf12e15a7ef..4c65eb6a867a 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -117,9 +117,12 @@ static const struct usb_device_id usb_quirk_list[] = {
 	{ USB_DEVICE(0x06a3, 0x0006), .driver_info =
 			USB_QUIRK_CONFIG_INTF_STRINGS },
 
-	/* Guillemot Webcam Hercules Dualpix Exchange*/
+	/* Guillemot Webcam Hercules Dualpix Exchange (2nd ID) */
 	{ USB_DEVICE(0x06f8, 0x0804), .driver_info = USB_QUIRK_RESET_RESUME },
 
+	/* Guillemot Webcam Hercules Dualpix Exchange*/
+	{ USB_DEVICE(0x06f8, 0x3005), .driver_info = USB_QUIRK_RESET_RESUME },
+
 	/* M-Systems Flash Disk Pioneers */
 	{ USB_DEVICE(0x08ec, 0x1000), .driver_info = USB_QUIRK_RESET_RESUME },
 
diff --git a/drivers/usb/core/usb.h b/drivers/usb/core/usb.h
index 3888778582c4..45e8479c377d 100644
--- a/drivers/usb/core/usb.h
+++ b/drivers/usb/core/usb.h
@@ -132,20 +132,6 @@ static inline int is_usb_device_driver(struct device_driver *drv)
 			for_devices;
 }
 
-/* translate USB error codes to codes user space understands */
-static inline int usb_translate_errors(int error_code)
-{
-	switch (error_code) {
-	case 0:
-	case -ENOMEM:
-	case -ENODEV:
-		return error_code;
-	default:
-		return -EIO;
-	}
-}
-
-
 /* for labeling diagnostics */
 extern const char *usbcore_name;
 
diff --git a/drivers/usb/dwc3/Kconfig b/drivers/usb/dwc3/Kconfig
index 3c1d67d324fd..d8f741f9e56e 100644
--- a/drivers/usb/dwc3/Kconfig
+++ b/drivers/usb/dwc3/Kconfig
@@ -1,7 +1,10 @@
 config USB_DWC3
 	tristate "DesignWare USB3 DRD Core Support"
-	depends on (USB || USB_GADGET)
+	depends on (USB && USB_GADGET)
 	select USB_OTG_UTILS
+	select USB_GADGET_DUALSPEED
+	select USB_GADGET_SUPERSPEED
+	select USB_XHCI_PLATFORM
 	help
 	  Say Y or M here if your system has a Dual Role SuperSpeed
 	  USB controller based on the DesignWare USB3 IP Core.
diff --git a/drivers/usb/dwc3/Makefile b/drivers/usb/dwc3/Makefile
index 593d1dbc465b..900ae74357f1 100644
--- a/drivers/usb/dwc3/Makefile
+++ b/drivers/usb/dwc3/Makefile
@@ -4,10 +4,8 @@ ccflags-$(CONFIG_USB_DWC3_VERBOSE)	+= -DVERBOSE_DEBUG
 obj-$(CONFIG_USB_DWC3)			+= dwc3.o
 
 dwc3-y					:= core.o
-
-ifneq ($(CONFIG_USB_GADGET_DWC3),)
-	dwc3-y				+= gadget.o ep0.o
-endif
+dwc3-y					+= host.o
+dwc3-y					+= gadget.o ep0.o
 
 ifneq ($(CONFIG_DEBUG_FS),)
 	dwc3-y				+= debugfs.o
diff --git a/drivers/usb/dwc3/core.c b/drivers/usb/dwc3/core.c
index 600d82348511..7c9df630dbe4 100644
--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -59,6 +59,60 @@
 
 #include "debug.h"
 
+static char *maximum_speed = "super";
+module_param(maximum_speed, charp, 0);
+MODULE_PARM_DESC(maximum_speed, "Maximum supported speed.");
+
+/* -------------------------------------------------------------------------- */
+
+#define DWC3_DEVS_POSSIBLE	32
+
+static DECLARE_BITMAP(dwc3_devs, DWC3_DEVS_POSSIBLE);
+
+int dwc3_get_device_id(void)
+{
+	int		id;
+
+again:
+	id = find_first_zero_bit(dwc3_devs, DWC3_DEVS_POSSIBLE);
+	if (id < DWC3_DEVS_POSSIBLE) {
+		int old;
+
+		old = test_and_set_bit(id, dwc3_devs);
+		if (old)
+			goto again;
+	} else {
+		pr_err("dwc3: no space for new device\n");
+		id = -ENOMEM;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(dwc3_get_device_id);
+
+void dwc3_put_device_id(int id)
+{
+	int			ret;
+
+	if (id < 0)
+		return;
+
+	ret = test_bit(id, dwc3_devs);
+	WARN(!ret, "dwc3: ID %d not in use\n", id);
+	clear_bit(id, dwc3_devs);
+}
+EXPORT_SYMBOL_GPL(dwc3_put_device_id);
+
+void dwc3_set_mode(struct dwc3 *dwc, u32 mode)
+{
+	u32 reg;
+
+	reg = dwc3_readl(dwc->regs, DWC3_GCTL);
+	reg &= ~(DWC3_GCTL_PRTCAPDIR(DWC3_GCTL_PRTCAP_OTG));
+	reg |= DWC3_GCTL_PRTCAPDIR(mode);
+	dwc3_writel(dwc->regs, DWC3_GCTL, reg);
+}
+
 /**
  * dwc3_core_soft_reset - Issues core soft reset and PHY reset
  * @dwc: pointer to our context structure
@@ -150,7 +204,7 @@ static void dwc3_free_event_buffers(struct dwc3 *dwc)
 	struct dwc3_event_buffer	*evt;
 	int i;
 
-	for (i = 0; i < DWC3_EVENT_BUFFERS_NUM; i++) {
+	for (i = 0; i < dwc->num_event_buffers; i++) {
 		evt = dwc->ev_buffs[i];
 		if (evt) {
 			dwc3_free_one_event_buffer(dwc, evt);
@@ -162,17 +216,25 @@ static void dwc3_free_event_buffers(struct dwc3 *dwc)
 /**
  * dwc3_alloc_event_buffers - Allocates @num event buffers of size @length
  * @dwc: Pointer to out controller context structure
- * @num: number of event buffers to allocate
  * @length: size of event buffer
  *
  * Returns 0 on success otherwise negative errno. In error the case, dwc
  * may contain some buffers allocated but not all which were requested.
  */
-static int __devinit dwc3_alloc_event_buffers(struct dwc3 *dwc, unsigned num,
-		unsigned length)
+static int __devinit dwc3_alloc_event_buffers(struct dwc3 *dwc, unsigned length)
 {
+	int			num;
 	int			i;
 
+	num = DWC3_NUM_INT(dwc->hwparams.hwparams1);
+	dwc->num_event_buffers = num;
+
+	dwc->ev_buffs = kzalloc(sizeof(*dwc->ev_buffs) * num, GFP_KERNEL);
+	if (!dwc->ev_buffs) {
+		dev_err(dwc->dev, "can't allocate event buffers array\n");
+		return -ENOMEM;
+	}
+
 	for (i = 0; i < num; i++) {
 		struct dwc3_event_buffer	*evt;
 
@@ -198,7 +260,7 @@ static int __devinit dwc3_event_buffers_setup(struct dwc3 *dwc)
 	struct dwc3_event_buffer	*evt;
 	int				n;
 
-	for (n = 0; n < DWC3_EVENT_BUFFERS_NUM; n++) {
+	for (n = 0; n < dwc->num_event_buffers; n++) {
 		evt = dwc->ev_buffs[n];
 		dev_dbg(dwc->dev, "Event buf %p dma %08llx length %d\n",
 				evt->buf, (unsigned long long) evt->dma,
@@ -221,7 +283,7 @@ static void dwc3_event_buffers_cleanup(struct dwc3 *dwc)
 	struct dwc3_event_buffer	*evt;
 	int				n;
 
-	for (n = 0; n < DWC3_EVENT_BUFFERS_NUM; n++) {
+	for (n = 0; n < dwc->num_event_buffers; n++) {
 		evt = dwc->ev_buffs[n];
 		dwc3_writel(dwc->regs, DWC3_GEVNTADRLO(n), 0);
 		dwc3_writel(dwc->regs, DWC3_GEVNTADRHI(n), 0);
@@ -285,8 +347,32 @@ static int __devinit dwc3_core_init(struct dwc3 *dwc)
 		cpu_relax();
 	} while (true);
 
-	ret = dwc3_alloc_event_buffers(dwc, DWC3_EVENT_BUFFERS_NUM,
-			DWC3_EVENT_BUFFERS_SIZE);
+	dwc3_cache_hwparams(dwc);
+
+	reg = dwc3_readl(dwc->regs, DWC3_GCTL);
+	reg &= ~DWC3_GCTL_SCALEDOWN(3);
+	reg &= ~DWC3_GCTL_DISSCRAMBLE;
+
+	switch (DWC3_GHWPARAMS1_EN_PWROPT(dwc->hwparams.hwparams1)) {
+	case DWC3_GHWPARAMS1_EN_PWROPT_CLK:
+		reg &= ~DWC3_GCTL_DSBLCLKGTNG;
+		break;
+	default:
+		dev_dbg(dwc->dev, "No power optimization available\n");
+	}
+
+	/*
+	 * WORKAROUND: DWC3 revisions <1.90a have a bug
+	 * when The device fails to connect at SuperSpeed
+	 * and falls back to high-speed mode which causes
+	 * the device to enter in a Connect/Disconnect loop
+	 */
+	if (dwc->revision < DWC3_REVISION_190A)
+		reg |= DWC3_GCTL_U2RSTECN;
+
+	dwc3_writel(dwc->regs, DWC3_GCTL, reg);
+
+	ret = dwc3_alloc_event_buffers(dwc, DWC3_EVENT_BUFFERS_SIZE);
 	if (ret) {
 		dev_err(dwc->dev, "failed to allocate event buffers\n");
 		ret = -ENOMEM;
@@ -299,8 +385,6 @@ static int __devinit dwc3_core_init(struct dwc3 *dwc)
 		goto err1;
 	}
 
-	dwc3_cache_hwparams(dwc);
-
 	return 0;
 
 err1:
@@ -320,15 +404,17 @@ static void dwc3_core_exit(struct dwc3 *dwc)
 
 static int __devinit dwc3_probe(struct platform_device *pdev)
 {
-	const struct platform_device_id *id = platform_get_device_id(pdev);
 	struct resource		*res;
 	struct dwc3		*dwc;
-	void __iomem		*regs;
-	unsigned int		features = id->driver_data;
+
 	int			ret = -ENOMEM;
 	int			irq;
+
+	void __iomem		*regs;
 	void			*mem;
 
+	u8			mode;
+
 	mem = kzalloc(sizeof(*dwc) + DWC3_ALIGN_MASK, GFP_KERNEL);
 	if (!mem) {
 		dev_err(&pdev->dev, "not enough memory\n");
@@ -343,6 +429,8 @@ static int __devinit dwc3_probe(struct platform_device *pdev)
 		goto err1;
 	}
 
+	dwc->res = res;
+
 	res = request_mem_region(res->start, resource_size(res),
 			dev_name(&pdev->dev));
 	if (!res) {
@@ -370,6 +458,17 @@ static int __devinit dwc3_probe(struct platform_device *pdev)
 	dwc->dev	= &pdev->dev;
 	dwc->irq	= irq;
 
+	if (!strncmp("super", maximum_speed, 5))
+		dwc->maximum_speed = DWC3_DCFG_SUPERSPEED;
+	else if (!strncmp("high", maximum_speed, 4))
+		dwc->maximum_speed = DWC3_DCFG_HIGHSPEED;
+	else if (!strncmp("full", maximum_speed, 4))
+		dwc->maximum_speed = DWC3_DCFG_FULLSPEED1;
+	else if (!strncmp("low", maximum_speed, 3))
+		dwc->maximum_speed = DWC3_DCFG_LOWSPEED;
+	else
+		dwc->maximum_speed = DWC3_DCFG_SUPERSPEED;
+
 	pm_runtime_enable(&pdev->dev);
 	pm_runtime_get_sync(&pdev->dev);
 	pm_runtime_forbid(&pdev->dev);
@@ -380,13 +479,44 @@ static int __devinit dwc3_probe(struct platform_device *pdev)
 		goto err3;
 	}
 
-	if (features & DWC3_HAS_PERIPHERAL) {
+	mode = DWC3_MODE(dwc->hwparams.hwparams0);
+
+	switch (mode) {
+	case DWC3_MODE_DEVICE:
+		dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_DEVICE);
 		ret = dwc3_gadget_init(dwc);
 		if (ret) {
-			dev_err(&pdev->dev, "failed to initialized gadget\n");
+			dev_err(&pdev->dev, "failed to initialize gadget\n");
 			goto err4;
 		}
+		break;
+	case DWC3_MODE_HOST:
+		dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_HOST);
+		ret = dwc3_host_init(dwc);
+		if (ret) {
+			dev_err(&pdev->dev, "failed to initialize host\n");
+			goto err4;
+		}
+		break;
+	case DWC3_MODE_DRD:
+		dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_OTG);
+		ret = dwc3_host_init(dwc);
+		if (ret) {
+			dev_err(&pdev->dev, "failed to initialize host\n");
+			goto err4;
+		}
+
+		ret = dwc3_gadget_init(dwc);
+		if (ret) {
+			dev_err(&pdev->dev, "failed to initialize gadget\n");
+			goto err4;
+		}
+		break;
+	default:
+		dev_err(&pdev->dev, "Unsupported mode of operation %d\n", mode);
+		goto err4;
 	}
+	dwc->mode = mode;
 
 	ret = dwc3_debugfs_init(dwc);
 	if (ret) {
@@ -399,8 +529,21 @@ static int __devinit dwc3_probe(struct platform_device *pdev)
 	return 0;
 
 err5:
-	if (features & DWC3_HAS_PERIPHERAL)
+	switch (mode) {
+	case DWC3_MODE_DEVICE:
+		dwc3_gadget_exit(dwc);
+		break;
+	case DWC3_MODE_HOST:
+		dwc3_host_exit(dwc);
+		break;
+	case DWC3_MODE_DRD:
+		dwc3_host_exit(dwc);
 		dwc3_gadget_exit(dwc);
+		break;
+	default:
+		/* do nothing */
+		break;
+	}
 
 err4:
 	dwc3_core_exit(dwc);
@@ -420,10 +563,8 @@ err0:
 
 static int __devexit dwc3_remove(struct platform_device *pdev)
 {
-	const struct platform_device_id *id = platform_get_device_id(pdev);
 	struct dwc3	*dwc = platform_get_drvdata(pdev);
 	struct resource	*res;
-	unsigned int	features = id->driver_data;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 
@@ -432,8 +573,21 @@ static int __devexit dwc3_remove(struct platform_device *pdev)
 
 	dwc3_debugfs_exit(dwc);
 
-	if (features & DWC3_HAS_PERIPHERAL)
+	switch (dwc->mode) {
+	case DWC3_MODE_DEVICE:
+		dwc3_gadget_exit(dwc);
+		break;
+	case DWC3_MODE_HOST:
+		dwc3_host_exit(dwc);
+		break;
+	case DWC3_MODE_DRD:
+		dwc3_host_exit(dwc);
 		dwc3_gadget_exit(dwc);
+		break;
+	default:
+		/* do nothing */
+		break;
+	}
 
 	dwc3_core_exit(dwc);
 	release_mem_region(res->start, resource_size(res));
@@ -443,30 +597,15 @@ static int __devexit dwc3_remove(struct platform_device *pdev)
 	return 0;
 }
 
-static const struct platform_device_id dwc3_id_table[] __devinitconst = {
-	{
-		.name	= "dwc3-omap",
-		.driver_data = (DWC3_HAS_PERIPHERAL
-			| DWC3_HAS_XHCI
-			| DWC3_HAS_OTG),
-	},
-	{
-		.name	= "dwc3-pci",
-		.driver_data = DWC3_HAS_PERIPHERAL,
-	},
-	{  },	/* Terminating Entry */
-};
-MODULE_DEVICE_TABLE(platform, dwc3_id_table);
-
 static struct platform_driver dwc3_driver = {
 	.probe		= dwc3_probe,
 	.remove		= __devexit_p(dwc3_remove),
 	.driver		= {
 		.name	= "dwc3",
 	},
-	.id_table	= dwc3_id_table,
 };
 
+MODULE_ALIAS("platform:dwc3");
 MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>");
 MODULE_LICENSE("Dual BSD/GPL");
 MODULE_DESCRIPTION("DesignWare USB3 DRD Controller Driver");
diff --git a/drivers/usb/dwc3/core.h b/drivers/usb/dwc3/core.h
index 29a8e1679e12..9e57f8e9bf17 100644
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -41,6 +41,7 @@
 
 #include <linux/device.h>
 #include <linux/spinlock.h>
+#include <linux/ioport.h>
 #include <linux/list.h>
 #include <linux/dma-mapping.h>
 #include <linux/mm.h>
@@ -52,7 +53,6 @@
 /* Global constants */
 #define DWC3_ENDPOINTS_NUM	32
 
-#define DWC3_EVENT_BUFFERS_NUM	2
 #define DWC3_EVENT_BUFFERS_SIZE	PAGE_SIZE
 #define DWC3_EVENT_TYPE_MASK	0xfe
 
@@ -153,6 +153,7 @@
 #define DWC3_GCTL_CLK_PIPEHALF	(2)
 #define DWC3_GCTL_CLK_MASK	(3)
 
+#define DWC3_GCTL_PRTCAP(n)	(((n) & (3 << 12)) >> 12)
 #define DWC3_GCTL_PRTCAPDIR(n)	(n << 12)
 #define DWC3_GCTL_PRTCAP_HOST	1
 #define DWC3_GCTL_PRTCAP_DEVICE	2
@@ -347,6 +348,7 @@ struct dwc3_ep {
 	u32			free_slot;
 	u32			busy_slot;
 	const struct usb_endpoint_descriptor *desc;
+	const struct usb_ss_ep_comp_descriptor *comp_desc;
 	struct dwc3		*dwc;
 
 	unsigned		flags;
@@ -536,6 +538,31 @@ struct dwc3_hwparams {
 	u32	hwparams8;
 };
 
+/* HWPARAMS0 */
+#define DWC3_MODE(n)		((n) & 0x7)
+
+#define DWC3_MODE_DEVICE	0
+#define DWC3_MODE_HOST		1
+#define DWC3_MODE_DRD		2
+#define DWC3_MODE_HUB		3
+
+/* HWPARAMS1 */
+#define DWC3_NUM_INT(n)	(((n) & (0x3f << 15)) >> 15)
+
+struct dwc3_request {
+	struct usb_request	request;
+	struct list_head	list;
+	struct dwc3_ep		*dep;
+
+	u8			epnum;
+	struct dwc3_trb_hw	*trb;
+	dma_addr_t		trb_dma;
+
+	unsigned		direction:1;
+	unsigned		mapped:1;
+	unsigned		queued:1;
+};
+
 /**
  * struct dwc3 - representation of our controller
  * @ctrl_req: usb control request which is used for ep0
@@ -549,19 +576,24 @@ struct dwc3_hwparams {
  * @ep0_bounce_addr: dma address of ep0_bounce
  * @lock: for synchronizing
  * @dev: pointer to our struct device
+ * @xhci: pointer to our xHCI child
  * @event_buffer_list: a list of event buffers
  * @gadget: device side representation of the peripheral controller
  * @gadget_driver: pointer to the gadget driver
  * @regs: base address for our registers
  * @regs_size: address space size
  * @irq: IRQ number
+ * @num_event_buffers: calculated number of event buffers
+ * @u1u2: only used on revisions <1.83a for workaround
+ * @maximum_speed: maximum speed requested (mainly for testing purposes)
  * @revision: revision register contents
+ * @mode: mode of operation
  * @is_selfpowered: true when we are selfpowered
  * @three_stage_setup: set if we perform a three phase setup
- * @ep0_status_pending: ep0 status response without a req is pending
  * @ep0_bounced: true when we used bounce buffer
  * @ep0_expect_in: true when we expect a DATA IN transfer
  * @start_config_issued: true when StartConfig command has been issued
+ * @setup_packet_pending: true when there's a Setup Packet in FIFO. Workaround
  * @ep0_next_event: hold the next expected event
  * @ep0state: state of endpoint zero
  * @link_state: link state
@@ -579,12 +611,15 @@ struct dwc3 {
 	dma_addr_t		ep0_trb_addr;
 	dma_addr_t		setup_buf_addr;
 	dma_addr_t		ep0_bounce_addr;
-	struct usb_request	ep0_usb_req;
+	struct dwc3_request	ep0_usb_req;
 	/* device lock */
 	spinlock_t		lock;
 	struct device		*dev;
 
-	struct dwc3_event_buffer *ev_buffs[DWC3_EVENT_BUFFERS_NUM];
+	struct platform_device	*xhci;
+	struct resource		*res;
+
+	struct dwc3_event_buffer **ev_buffs;
 	struct dwc3_ep		*eps[DWC3_ENDPOINTS_NUM];
 
 	struct usb_gadget	gadget;
@@ -595,7 +630,11 @@ struct dwc3 {
 
 	int			irq;
 
+	u32			num_event_buffers;
+	u32			u1u2;
+	u32			maximum_speed;
 	u32			revision;
+	u32			mode;
 
 #define DWC3_REVISION_173A	0x5533173a
 #define DWC3_REVISION_175A	0x5533175a
@@ -607,10 +646,11 @@ struct dwc3 {
 
 	unsigned		is_selfpowered:1;
 	unsigned		three_stage_setup:1;
-	unsigned		ep0_status_pending:1;
 	unsigned		ep0_bounced:1;
 	unsigned		ep0_expect_in:1;
 	unsigned		start_config_issued:1;
+	unsigned		setup_packet_pending:1;
+	unsigned		delayed_status:1;
 
 	enum dwc3_ep0_next	ep0_next_event;
 	enum dwc3_ep0_state	ep0state;
@@ -765,4 +805,16 @@ union dwc3_event {
 #define DWC3_HAS_XHCI			BIT(1)
 #define DWC3_HAS_OTG			BIT(3)
 
+/* prototypes */
+void dwc3_set_mode(struct dwc3 *dwc, u32 mode);
+
+int dwc3_host_init(struct dwc3 *dwc);
+void dwc3_host_exit(struct dwc3 *dwc);
+
+int dwc3_gadget_init(struct dwc3 *dwc);
+void dwc3_gadget_exit(struct dwc3 *dwc);
+
+extern int dwc3_get_device_id(void);
+extern void dwc3_put_device_id(int id);
+
 #endif /* __DRIVERS_USB_DWC3_CORE_H */
diff --git a/drivers/usb/dwc3/debugfs.c b/drivers/usb/dwc3/debugfs.c
index fcfa91517ea1..433c97c15fc5 100644
--- a/drivers/usb/dwc3/debugfs.c
+++ b/drivers/usb/dwc3/debugfs.c
@@ -44,12 +44,12 @@
 #include <linux/debugfs.h>
 #include <linux/seq_file.h>
 #include <linux/delay.h>
-
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 
 #include "core.h"
 #include "gadget.h"
 #include "io.h"
+#include "debug.h"
 
 #define dump_register(nm)				\
 {							\
@@ -395,6 +395,75 @@ static const struct file_operations dwc3_regdump_fops = {
 	.release		= single_release,
 };
 
+static int dwc3_mode_show(struct seq_file *s, void *unused)
+{
+	struct dwc3		*dwc = s->private;
+	unsigned long		flags;
+	u32			reg;
+
+	spin_lock_irqsave(&dwc->lock, flags);
+	reg = dwc3_readl(dwc->regs, DWC3_GCTL);
+	spin_unlock_irqrestore(&dwc->lock, flags);
+
+	switch (DWC3_GCTL_PRTCAP(reg)) {
+	case DWC3_GCTL_PRTCAP_HOST:
+		seq_printf(s, "host\n");
+		break;
+	case DWC3_GCTL_PRTCAP_DEVICE:
+		seq_printf(s, "device\n");
+		break;
+	case DWC3_GCTL_PRTCAP_OTG:
+		seq_printf(s, "OTG\n");
+		break;
+	default:
+		seq_printf(s, "UNKNOWN %08x\n", DWC3_GCTL_PRTCAP(reg));
+	}
+
+	return 0;
+}
+
+static int dwc3_mode_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, dwc3_mode_show, inode->i_private);
+}
+
+static ssize_t dwc3_mode_write(struct file *file,
+		const char __user *ubuf, size_t count, loff_t *ppos)
+{
+	struct seq_file		*s = file->private_data;
+	struct dwc3		*dwc = s->private;
+	unsigned long		flags;
+	u32			mode = 0;
+	char			buf[32];
+
+	if (copy_from_user(&buf, ubuf, min_t(size_t, sizeof(buf) - 1, count)))
+		return -EFAULT;
+
+	if (!strncmp(buf, "host", 4))
+		mode |= DWC3_GCTL_PRTCAP_HOST;
+
+	if (!strncmp(buf, "device", 6))
+		mode |= DWC3_GCTL_PRTCAP_DEVICE;
+
+	if (!strncmp(buf, "otg", 3))
+		mode |= DWC3_GCTL_PRTCAP_OTG;
+
+	if (mode) {
+		spin_lock_irqsave(&dwc->lock, flags);
+		dwc3_set_mode(dwc, mode);
+		spin_unlock_irqrestore(&dwc->lock, flags);
+	}
+	return count;
+}
+
+static const struct file_operations dwc3_mode_fops = {
+	.open			= dwc3_mode_open,
+	.write			= dwc3_mode_write,
+	.read			= seq_read,
+	.llseek			= seq_lseek,
+	.release		= single_release,
+};
+
 int __devinit dwc3_debugfs_init(struct dwc3 *dwc)
 {
 	struct dentry		*root;
@@ -402,7 +471,7 @@ int __devinit dwc3_debugfs_init(struct dwc3 *dwc)
 	int			ret;
 
 	root = debugfs_create_dir(dev_name(dwc->dev), NULL);
-	if (IS_ERR(root)){
+	if (IS_ERR(root)) {
 		ret = PTR_ERR(root);
 		goto err0;
 	}
@@ -415,6 +484,14 @@ int __devinit dwc3_debugfs_init(struct dwc3 *dwc)
 		ret = PTR_ERR(file);
 		goto err1;
 	}
+
+	file = debugfs_create_file("mode", S_IRUGO | S_IWUSR, root,
+			dwc, &dwc3_mode_fops);
+	if (IS_ERR(file)) {
+		ret = PTR_ERR(file);
+		goto err1;
+	}
+
 	return 0;
 
 err1:
diff --git a/drivers/usb/dwc3/dwc3-omap.c b/drivers/usb/dwc3/dwc3-omap.c
index 062552b5fc8a..3274ac8f1200 100644
--- a/drivers/usb/dwc3/dwc3-omap.c
+++ b/drivers/usb/dwc3/dwc3-omap.c
@@ -48,6 +48,7 @@
 #include <linux/io.h>
 #include <linux/module.h>
 
+#include "core.h"
 #include "io.h"
 
 /*
@@ -200,6 +201,7 @@ static int __devinit dwc3_omap_probe(struct platform_device *pdev)
 	struct dwc3_omap	*omap;
 	struct resource		*res;
 
+	int			devid;
 	int			ret = -ENOMEM;
 	int			irq;
 
@@ -236,16 +238,20 @@ static int __devinit dwc3_omap_probe(struct platform_device *pdev)
 		goto err1;
 	}
 
-	dwc3 = platform_device_alloc("dwc3-omap", -1);
+	devid = dwc3_get_device_id();
+	if (devid < 0)
+		goto err2;
+
+	dwc3 = platform_device_alloc("dwc3", devid);
 	if (!dwc3) {
 		dev_err(&pdev->dev, "couldn't allocate dwc3 device\n");
-		goto err2;
+		goto err3;
 	}
 
 	context = kzalloc(resource_size(res), GFP_KERNEL);
 	if (!context) {
 		dev_err(&pdev->dev, "couldn't allocate dwc3 context memory\n");
-		goto err3;
+		goto err4;
 	}
 
 	spin_lock_init(&omap->lock);
@@ -299,7 +305,7 @@ static int __devinit dwc3_omap_probe(struct platform_device *pdev)
 	if (ret) {
 		dev_err(&pdev->dev, "failed to request IRQ #%d --> %d\n",
 				omap->irq, ret);
-		goto err4;
+		goto err5;
 	}
 
 	/* enable all IRQs */
@@ -322,26 +328,29 @@ static int __devinit dwc3_omap_probe(struct platform_device *pdev)
 			pdev->num_resources);
 	if (ret) {
 		dev_err(&pdev->dev, "couldn't add resources to dwc3 device\n");
-		goto err5;
+		goto err6;
 	}
 
 	ret = platform_device_add(dwc3);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to register dwc3 device\n");
-		goto err5;
+		goto err6;
 	}
 
 	return 0;
 
-err5:
+err6:
 	free_irq(omap->irq, omap);
 
-err4:
+err5:
 	kfree(omap->context);
 
-err3:
+err4:
 	platform_device_put(dwc3);
 
+err3:
+	dwc3_put_device_id(devid);
+
 err2:
 	iounmap(base);
 
@@ -358,6 +367,7 @@ static int __devexit dwc3_omap_remove(struct platform_device *pdev)
 
 	platform_device_unregister(omap->dwc3);
 
+	dwc3_put_device_id(omap->dwc3->id);
 	free_irq(omap->irq, omap);
 	iounmap(omap->base);
 
@@ -384,18 +394,9 @@ static struct platform_driver dwc3_omap_driver = {
 	},
 };
 
+module_platform_driver(dwc3_omap_driver);
+
+MODULE_ALIAS("platform:omap-dwc3");
 MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>");
 MODULE_LICENSE("Dual BSD/GPL");
 MODULE_DESCRIPTION("DesignWare USB3 OMAP Glue Layer");
-
-static int __devinit dwc3_omap_init(void)
-{
-	return platform_driver_register(&dwc3_omap_driver);
-}
-module_init(dwc3_omap_init);
-
-static void __exit dwc3_omap_exit(void)
-{
-	platform_driver_unregister(&dwc3_omap_driver);
-}
-module_exit(dwc3_omap_exit);
diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c
index f77c00042685..64e1f7c67b08 100644
--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -42,52 +42,17 @@
 #include <linux/pci.h>
 #include <linux/platform_device.h>
 
+#include "core.h"
+
 /* FIXME define these in <linux/pci_ids.h> */
 #define PCI_VENDOR_ID_SYNOPSYS		0x16c3
 #define PCI_DEVICE_ID_SYNOPSYS_HAPSUSB3	0xabcd
 
-#define DWC3_PCI_DEVS_POSSIBLE	32
-
 struct dwc3_pci {
 	struct device		*dev;
 	struct platform_device	*dwc3;
 };
 
-static DECLARE_BITMAP(dwc3_pci_devs, DWC3_PCI_DEVS_POSSIBLE);
-
-static int dwc3_pci_get_device_id(struct dwc3_pci *glue)
-{
-	int		id;
-
-again:
-	id = find_first_zero_bit(dwc3_pci_devs, DWC3_PCI_DEVS_POSSIBLE);
-	if (id < DWC3_PCI_DEVS_POSSIBLE) {
-		int old;
-
-		old = test_and_set_bit(id, dwc3_pci_devs);
-		if (old)
-			goto again;
-	} else {
-		dev_err(glue->dev, "no space for new device\n");
-		id = -ENOMEM;
-	}
-
-	return 0;
-}
-
-static void dwc3_pci_put_device_id(struct dwc3_pci *glue, int id)
-{
-	int			ret;
-
-	if (id < 0)
-		return;
-
-	ret = test_bit(id, dwc3_pci_devs);
-	WARN(!ret, "Device: %s\nID %d not in use\n",
-			dev_driver_string(glue->dev), id);
-	clear_bit(id, dwc3_pci_devs);
-}
-
 static int __devinit dwc3_pci_probe(struct pci_dev *pci,
 		const struct pci_device_id *id)
 {
@@ -114,11 +79,11 @@ static int __devinit dwc3_pci_probe(struct pci_dev *pci,
 	pci_set_power_state(pci, PCI_D0);
 	pci_set_master(pci);
 
-	devid = dwc3_pci_get_device_id(glue);
+	devid = dwc3_get_device_id();
 	if (devid < 0)
 		goto err2;
 
-	dwc3 = platform_device_alloc("dwc3-pci", devid);
+	dwc3 = platform_device_alloc("dwc3", devid);
 	if (!dwc3) {
 		dev_err(&pci->dev, "couldn't allocate dwc3 device\n");
 		goto err3;
@@ -163,13 +128,13 @@ err4:
 	platform_device_put(dwc3);
 
 err3:
-	dwc3_pci_put_device_id(glue, devid);
+	dwc3_put_device_id(devid);
 
 err2:
 	pci_disable_device(pci);
 
 err1:
-	kfree(pci);
+	kfree(glue);
 
 err0:
 	return ret;
@@ -179,7 +144,7 @@ static void __devexit dwc3_pci_remove(struct pci_dev *pci)
 {
 	struct dwc3_pci	*glue = pci_get_drvdata(pci);
 
-	dwc3_pci_put_device_id(glue, glue->dwc3->id);
+	dwc3_put_device_id(glue->dwc3->id);
 	platform_device_unregister(glue->dwc3);
 	pci_set_drvdata(pci, NULL);
 	pci_disable_device(pci);
@@ -196,7 +161,7 @@ static DEFINE_PCI_DEVICE_TABLE(dwc3_pci_id_table) = {
 MODULE_DEVICE_TABLE(pci, dwc3_pci_id_table);
 
 static struct pci_driver dwc3_pci_driver = {
-	.name		= "pci-dwc3",
+	.name		= "dwc3-pci",
 	.id_table	= dwc3_pci_id_table,
 	.probe		= dwc3_pci_probe,
 	.remove		= __devexit_p(dwc3_pci_remove),
diff --git a/drivers/usb/dwc3/ep0.c b/drivers/usb/dwc3/ep0.c
index 69a4e43ddf59..2f51de57593a 100644
--- a/drivers/usb/dwc3/ep0.c
+++ b/drivers/usb/dwc3/ep0.c
@@ -48,13 +48,13 @@
 
 #include <linux/usb/ch9.h>
 #include <linux/usb/gadget.h>
+#include <linux/usb/composite.h>
 
 #include "core.h"
 #include "gadget.h"
 #include "io.h"
 
-static void dwc3_ep0_inspect_setup(struct dwc3 *dwc,
-		const struct dwc3_event_depevt *event);
+static void dwc3_ep0_do_control_status(struct dwc3 *dwc, u32 epnum);
 
 static const char *dwc3_ep0_state_string(enum dwc3_ep0_state state)
 {
@@ -125,6 +125,8 @@ static int dwc3_ep0_start_trans(struct dwc3 *dwc, u8 epnum, dma_addr_t buf_dma,
 static int __dwc3_gadget_ep0_queue(struct dwc3_ep *dep,
 		struct dwc3_request *req)
 {
+	struct dwc3		*dwc = dep->dwc;
+	u32			type;
 	int			ret = 0;
 
 	req->request.actual	= 0;
@@ -143,9 +145,7 @@ static int __dwc3_gadget_ep0_queue(struct dwc3_ep *dep,
 	 * IRQ we were waiting for is long gone.
 	 */
 	if (dep->flags & DWC3_EP_PENDING_REQUEST) {
-		struct dwc3	*dwc = dep->dwc;
 		unsigned	direction;
-		u32		type;
 
 		direction = !!(dep->flags & DWC3_EP0_DIR_IN);
 
@@ -165,6 +165,13 @@ static int __dwc3_gadget_ep0_queue(struct dwc3_ep *dep,
 				req->request.dma, req->request.length, type);
 		dep->flags &= ~(DWC3_EP_PENDING_REQUEST |
 				DWC3_EP0_DIR_IN);
+	} else if (dwc->delayed_status) {
+		dwc->delayed_status = false;
+
+		if (dwc->ep0state == EP0_STATUS_PHASE)
+			dwc3_ep0_do_control_status(dwc, 1);
+		else
+			dev_dbg(dwc->dev, "too early for delayed status\n");
 	}
 
 	return ret;
@@ -190,9 +197,7 @@ int dwc3_gadget_ep0_queue(struct usb_ep *ep, struct usb_request *request,
 	}
 
 	/* we share one TRB for ep0/1 */
-	if (!list_empty(&dwc->eps[0]->request_list) ||
-			!list_empty(&dwc->eps[1]->request_list) ||
-			dwc->ep0_status_pending) {
+	if (!list_empty(&dep->request_list)) {
 		ret = -EBUSY;
 		goto out;
 	}
@@ -214,8 +219,9 @@ static void dwc3_ep0_stall_and_restart(struct dwc3 *dwc)
 	struct dwc3_ep		*dep = dwc->eps[0];
 
 	/* stall is always issued on EP0 */
-	__dwc3_gadget_ep_set_halt(dwc->eps[0], 1);
-	dwc->eps[0]->flags = DWC3_EP_ENABLED;
+	__dwc3_gadget_ep_set_halt(dep, 1);
+	dep->flags = DWC3_EP_ENABLED;
+	dwc->delayed_status = false;
 
 	if (!list_empty(&dep->request_list)) {
 		struct dwc3_request	*req;
@@ -254,17 +260,14 @@ static struct dwc3_ep *dwc3_wIndex_to_dep(struct dwc3 *dwc, __le16 wIndex_le)
 	return NULL;
 }
 
-static void dwc3_ep0_send_status_response(struct dwc3 *dwc)
+static void dwc3_ep0_status_cmpl(struct usb_ep *ep, struct usb_request *req)
 {
-	dwc3_ep0_start_trans(dwc, 1, dwc->setup_buf_addr,
-			dwc->ep0_usb_req.length,
-			DWC3_TRBCTL_CONTROL_DATA);
 }
-
 /*
  * ch 9.4.5
  */
-static int dwc3_ep0_handle_status(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl)
+static int dwc3_ep0_handle_status(struct dwc3 *dwc,
+		struct usb_ctrlrequest *ctrl)
 {
 	struct dwc3_ep		*dep;
 	u32			recip;
@@ -291,7 +294,7 @@ static int dwc3_ep0_handle_status(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl
 	case USB_RECIP_ENDPOINT:
 		dep = dwc3_wIndex_to_dep(dwc, ctrl->wIndex);
 		if (!dep)
-		       return -EINVAL;
+			return -EINVAL;
 
 		if (dep->flags & DWC3_EP_STALL)
 			usb_status = 1 << USB_ENDPOINT_HALT;
@@ -302,10 +305,14 @@ static int dwc3_ep0_handle_status(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl
 
 	response_pkt = (__le16 *) dwc->setup_buf;
 	*response_pkt = cpu_to_le16(usb_status);
-	dwc->ep0_usb_req.length = sizeof(*response_pkt);
-	dwc->ep0_status_pending = 1;
 
-	return 0;
+	dep = dwc->eps[0];
+	dwc->ep0_usb_req.dep = dep;
+	dwc->ep0_usb_req.request.length = sizeof(*response_pkt);
+	dwc->ep0_usb_req.request.dma = dwc->setup_buf_addr;
+	dwc->ep0_usb_req.request.complete = dwc3_ep0_status_cmpl;
+
+	return __dwc3_gadget_ep0_queue(dep, &dwc->ep0_usb_req);
 }
 
 static int dwc3_ep0_handle_feature(struct dwc3 *dwc,
@@ -396,8 +403,7 @@ static int dwc3_ep0_handle_feature(struct dwc3 *dwc,
 	case USB_RECIP_ENDPOINT:
 		switch (wValue) {
 		case USB_ENDPOINT_HALT:
-
-			dep =  dwc3_wIndex_to_dep(dwc, ctrl->wIndex);
+			dep =  dwc3_wIndex_to_dep(dwc, wIndex);
 			if (!dep)
 				return -EINVAL;
 			ret = __dwc3_gadget_ep_set_halt(dep, set);
@@ -422,8 +428,15 @@ static int dwc3_ep0_set_address(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl)
 	u32 reg;
 
 	addr = le16_to_cpu(ctrl->wValue);
-	if (addr > 127)
+	if (addr > 127) {
+		dev_dbg(dwc->dev, "invalid device address %d\n", addr);
 		return -EINVAL;
+	}
+
+	if (dwc->dev_state == DWC3_CONFIGURED_STATE) {
+		dev_dbg(dwc->dev, "trying to set address when configured\n");
+		return -EINVAL;
+	}
 
 	reg = dwc3_readl(dwc->regs, DWC3_DCFG);
 	reg &= ~(DWC3_DCFG_DEVADDR_MASK);
@@ -473,8 +486,10 @@ static int dwc3_ep0_set_config(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl)
 		if (!cfg)
 			dwc->dev_state = DWC3_ADDRESS_STATE;
 		break;
+	default:
+		ret = -EINVAL;
 	}
-	return 0;
+	return ret;
 }
 
 static int dwc3_ep0_std_request(struct dwc3 *dwc, struct usb_ctrlrequest *ctrl)
@@ -537,6 +552,9 @@ static void dwc3_ep0_inspect_setup(struct dwc3 *dwc,
 	else
 		ret = dwc3_ep0_delegate_req(dwc, ctrl);
 
+	if (ret == USB_GADGET_DELAYED_STATUS)
+		dwc->delayed_status = true;
+
 	if (ret >= 0)
 		return;
 
@@ -550,27 +568,21 @@ static void dwc3_ep0_complete_data(struct dwc3 *dwc,
 	struct dwc3_request	*r = NULL;
 	struct usb_request	*ur;
 	struct dwc3_trb		trb;
-	struct dwc3_ep		*dep;
+	struct dwc3_ep		*ep0;
 	u32			transferred;
 	u8			epnum;
 
 	epnum = event->endpoint_number;
-	dep = dwc->eps[epnum];
+	ep0 = dwc->eps[0];
 
 	dwc->ep0_next_event = DWC3_EP0_NRDY_STATUS;
 
-	if (!dwc->ep0_status_pending) {
-		r = next_request(&dwc->eps[0]->request_list);
-		ur = &r->request;
-	} else {
-		ur = &dwc->ep0_usb_req;
-		dwc->ep0_status_pending = 0;
-	}
+	r = next_request(&ep0->request_list);
+	ur = &r->request;
 
 	dwc3_trb_to_nat(dwc->ep0_trb, &trb);
 
 	if (dwc->ep0_bounced) {
-		struct dwc3_ep	*ep0 = dwc->eps[0];
 
 		transferred = min_t(u32, ur->length,
 				ep0->endpoint.maxpacket - trb.length);
@@ -591,7 +603,7 @@ static void dwc3_ep0_complete_data(struct dwc3 *dwc,
 		 * seems to be case when req.length > maxpacket. Could it be?
 		 */
 		if (r)
-			dwc3_gadget_giveback(dep, r, 0);
+			dwc3_gadget_giveback(ep0, r, 0);
 	}
 }
 
@@ -619,6 +631,7 @@ static void dwc3_ep0_xfer_complete(struct dwc3 *dwc,
 	struct dwc3_ep		*dep = dwc->eps[event->endpoint_number];
 
 	dep->flags &= ~DWC3_EP_BUSY;
+	dwc->setup_packet_pending = false;
 
 	switch (dwc->ep0state) {
 	case EP0_SETUP_PHASE:
@@ -643,7 +656,6 @@ static void dwc3_ep0_xfer_complete(struct dwc3 *dwc,
 static void dwc3_ep0_do_control_setup(struct dwc3 *dwc,
 		const struct dwc3_event_depevt *event)
 {
-	dwc->ep0state = EP0_SETUP_PHASE;
 	dwc3_ep0_out_start(dwc);
 }
 
@@ -655,12 +667,6 @@ static void dwc3_ep0_do_control_data(struct dwc3 *dwc,
 	int			ret;
 
 	dep = dwc->eps[0];
-	dwc->ep0state = EP0_DATA_PHASE;
-
-	if (dwc->ep0_status_pending) {
-		dwc3_ep0_send_status_response(dwc);
-		return;
-	}
 
 	if (list_empty(&dep->request_list)) {
 		dev_vdbg(dwc->dev, "pending request for EP0 Data phase\n");
@@ -674,7 +680,6 @@ static void dwc3_ep0_do_control_data(struct dwc3 *dwc,
 	req = next_request(&dep->request_list);
 	req->direction = !!event->endpoint_number;
 
-	dwc->ep0state = EP0_DATA_PHASE;
 	if (req->request.length == 0) {
 		ret = dwc3_ep0_start_trans(dwc, event->endpoint_number,
 				dwc->ctrl_req_addr, 0,
@@ -706,35 +711,79 @@ static void dwc3_ep0_do_control_data(struct dwc3 *dwc,
 	WARN_ON(ret < 0);
 }
 
-static void dwc3_ep0_do_control_status(struct dwc3 *dwc,
-		const struct dwc3_event_depevt *event)
+static int dwc3_ep0_start_control_status(struct dwc3_ep *dep)
 {
+	struct dwc3		*dwc = dep->dwc;
 	u32			type;
-	int			ret;
-
-	dwc->ep0state = EP0_STATUS_PHASE;
 
 	type = dwc->three_stage_setup ? DWC3_TRBCTL_CONTROL_STATUS3
 		: DWC3_TRBCTL_CONTROL_STATUS2;
 
-	ret = dwc3_ep0_start_trans(dwc, event->endpoint_number,
+	return dwc3_ep0_start_trans(dwc, dep->number,
 			dwc->ctrl_req_addr, 0, type);
+}
 
-	WARN_ON(ret < 0);
+static void dwc3_ep0_do_control_status(struct dwc3 *dwc, u32 epnum)
+{
+	struct dwc3_ep		*dep = dwc->eps[epnum];
+
+	WARN_ON(dwc3_ep0_start_control_status(dep));
 }
 
 static void dwc3_ep0_xfernotready(struct dwc3 *dwc,
 		const struct dwc3_event_depevt *event)
 {
+	dwc->setup_packet_pending = true;
+
+	/*
+	 * This part is very tricky: If we has just handled
+	 * XferNotReady(Setup) and we're now expecting a
+	 * XferComplete but, instead, we receive another
+	 * XferNotReady(Setup), we should STALL and restart
+	 * the state machine.
+	 *
+	 * In all other cases, we just continue waiting
+	 * for the XferComplete event.
+	 *
+	 * We are a little bit unsafe here because we're
+	 * not trying to ensure that last event was, indeed,
+	 * XferNotReady(Setup).
+	 *
+	 * Still, we don't expect any condition where that
+	 * should happen and, even if it does, it would be
+	 * another error condition.
+	 */
+	if (dwc->ep0_next_event == DWC3_EP0_COMPLETE) {
+		switch (event->status) {
+		case DEPEVT_STATUS_CONTROL_SETUP:
+			dev_vdbg(dwc->dev, "Unexpected XferNotReady(Setup)\n");
+			dwc3_ep0_stall_and_restart(dwc);
+			break;
+		case DEPEVT_STATUS_CONTROL_DATA:
+			/* FALLTHROUGH */
+		case DEPEVT_STATUS_CONTROL_STATUS:
+			/* FALLTHROUGH */
+		default:
+			dev_vdbg(dwc->dev, "waiting for XferComplete\n");
+		}
+
+		return;
+	}
+
 	switch (event->status) {
 	case DEPEVT_STATUS_CONTROL_SETUP:
 		dev_vdbg(dwc->dev, "Control Setup\n");
+
+		dwc->ep0state = EP0_SETUP_PHASE;
+
 		dwc3_ep0_do_control_setup(dwc, event);
 		break;
 
 	case DEPEVT_STATUS_CONTROL_DATA:
 		dev_vdbg(dwc->dev, "Control Data\n");
 
+		dwc->ep0state = EP0_DATA_PHASE;
+
 		if (dwc->ep0_next_event != DWC3_EP0_NRDY_DATA) {
 			dev_vdbg(dwc->dev, "Expected %d got %d\n",
 					dwc->ep0_next_event,
@@ -764,6 +813,8 @@ static void dwc3_ep0_xfernotready(struct dwc3 *dwc,
 	case DEPEVT_STATUS_CONTROL_STATUS:
 		dev_vdbg(dwc->dev, "Control Status\n");
 
+		dwc->ep0state = EP0_STATUS_PHASE;
+
 		if (dwc->ep0_next_event != DWC3_EP0_NRDY_STATUS) {
 			dev_vdbg(dwc->dev, "Expected %d got %d\n",
 					dwc->ep0_next_event,
@@ -772,12 +823,19 @@ static void dwc3_ep0_xfernotready(struct dwc3 *dwc,
 			dwc3_ep0_stall_and_restart(dwc);
 			return;
 		}
-		dwc3_ep0_do_control_status(dwc, event);
+
+		if (dwc->delayed_status) {
+			WARN_ON_ONCE(event->endpoint_number != 1);
+			dev_vdbg(dwc->dev, "Mass Storage delayed status\n");
+			return;
+		}
+
+		dwc3_ep0_do_control_status(dwc, event->endpoint_number);
 	}
 }
 
 void dwc3_ep0_interrupt(struct dwc3 *dwc,
-		const const struct dwc3_event_depevt *event)
+		const struct dwc3_event_depevt *event)
 {
 	u8			epnum = event->endpoint_number;
 
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 25dbd8614e72..a696bde53222 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -65,6 +65,22 @@ void dwc3_map_buffer_to_dma(struct dwc3_request *req)
 		return;
 	}
 
+	if (req->request.num_sgs) {
+		int	mapped;
+
+		mapped = dma_map_sg(dwc->dev, req->request.sg,
+				req->request.num_sgs,
+				req->direction ? DMA_TO_DEVICE
+				: DMA_FROM_DEVICE);
+		if (mapped < 0) {
+			dev_err(dwc->dev, "failed to map SGs\n");
+			return;
+		}
+
+		req->request.num_mapped_sgs = mapped;
+		return;
+	}
+
 	if (req->request.dma == DMA_ADDR_INVALID) {
 		req->request.dma = dma_map_single(dwc->dev, req->request.buf,
 				req->request.length, req->direction
@@ -82,6 +98,17 @@ void dwc3_unmap_buffer_from_dma(struct dwc3_request *req)
 		return;
 	}
 
+	if (req->request.num_mapped_sgs) {
+		req->request.dma = DMA_ADDR_INVALID;
+		dma_unmap_sg(dwc->dev, req->request.sg,
+				req->request.num_sgs,
+				req->direction ? DMA_TO_DEVICE
+				: DMA_FROM_DEVICE);
+
+		req->request.num_mapped_sgs = 0;
+		return;
+	}
+
 	if (req->mapped) {
 		dma_unmap_single(dwc->dev, req->request.dma,
 				req->request.length, req->direction
@@ -97,7 +124,11 @@ void dwc3_gadget_giveback(struct dwc3_ep *dep, struct dwc3_request *req,
 	struct dwc3			*dwc = dep->dwc;
 
 	if (req->queued) {
-		dep->busy_slot++;
+		if (req->request.num_mapped_sgs)
+			dep->busy_slot += req->request.num_mapped_sgs;
+		else
+			dep->busy_slot++;
+
 		/*
 		 * Skip LINK TRB. We can't use req->trb and check for
 		 * DWC3_TRBCTL_LINK_TRB because it points the TRB we just
@@ -108,6 +139,7 @@ void dwc3_gadget_giveback(struct dwc3_ep *dep, struct dwc3_request *req,
 			dep->busy_slot++;
 	}
 	list_del(&req->list);
+	req->trb = NULL;
 
 	if (req->request.status == -EINPROGRESS)
 		req->request.status = status;
@@ -251,7 +283,8 @@ static int dwc3_gadget_start_config(struct dwc3 *dwc, struct dwc3_ep *dep)
 }
 
 static int dwc3_gadget_set_ep_config(struct dwc3 *dwc, struct dwc3_ep *dep,
-		const struct usb_endpoint_descriptor *desc)
+		const struct usb_endpoint_descriptor *desc,
+		const struct usb_ss_ep_comp_descriptor *comp_desc)
 {
 	struct dwc3_gadget_ep_cmd_params params;
 
@@ -264,7 +297,7 @@ static int dwc3_gadget_set_ep_config(struct dwc3 *dwc, struct dwc3_ep *dep,
 	params.param1 = DWC3_DEPCFG_XFER_COMPLETE_EN
 		| DWC3_DEPCFG_XFER_NOT_READY_EN;
 
-	if (usb_endpoint_xfer_bulk(desc) && dep->endpoint.max_streams) {
+	if (usb_ss_max_streams(comp_desc) && usb_endpoint_xfer_bulk(desc)) {
 		params.param1 |= DWC3_DEPCFG_STREAM_CAPABLE
 			| DWC3_DEPCFG_STREAM_EVENT_EN;
 		dep->stream_capable = true;
@@ -317,7 +350,8 @@ static int dwc3_gadget_set_xfer_resource(struct dwc3 *dwc, struct dwc3_ep *dep)
  * Caller should take care of locking
  */
 static int __dwc3_gadget_ep_enable(struct dwc3_ep *dep,
-		const struct usb_endpoint_descriptor *desc)
+		const struct usb_endpoint_descriptor *desc,
+		const struct usb_ss_ep_comp_descriptor *comp_desc)
 {
 	struct dwc3		*dwc = dep->dwc;
 	u32			reg;
@@ -329,7 +363,7 @@ static int __dwc3_gadget_ep_enable(struct dwc3_ep *dep,
 			return ret;
 	}
 
-	ret = dwc3_gadget_set_ep_config(dwc, dep, desc);
+	ret = dwc3_gadget_set_ep_config(dwc, dep, desc, comp_desc);
 	if (ret)
 		return ret;
 
@@ -343,6 +377,7 @@ static int __dwc3_gadget_ep_enable(struct dwc3_ep *dep,
 			return ret;
 
 		dep->desc = desc;
+		dep->comp_desc = comp_desc;
 		dep->type = usb_endpoint_type(desc);
 		dep->flags |= DWC3_EP_ENABLED;
 
@@ -405,6 +440,7 @@ static int __dwc3_gadget_ep_disable(struct dwc3_ep *dep)
 
 	dep->stream_capable = false;
 	dep->desc = NULL;
+	dep->comp_desc = NULL;
 	dep->type = 0;
 	dep->flags = 0;
 
@@ -473,7 +509,7 @@ static int dwc3_gadget_ep_enable(struct usb_ep *ep,
 	dev_vdbg(dwc->dev, "Enabling %s\n", dep->name);
 
 	spin_lock_irqsave(&dwc->lock, flags);
-	ret = __dwc3_gadget_ep_enable(dep, desc);
+	ret = __dwc3_gadget_ep_enable(dep, desc, ep->comp_desc);
 	spin_unlock_irqrestore(&dwc->lock, flags);
 
 	return ret;
@@ -539,6 +575,85 @@ static void dwc3_gadget_ep_free_request(struct usb_ep *ep,
 	kfree(req);
 }
 
+/**
+ * dwc3_prepare_one_trb - setup one TRB from one request
+ * @dep: endpoint for which this request is prepared
+ * @req: dwc3_request pointer
+ */
+static void dwc3_prepare_one_trb(struct dwc3_ep *dep,
+		struct dwc3_request *req, dma_addr_t dma,
+		unsigned length, unsigned last, unsigned chain)
+{
+	struct dwc3		*dwc = dep->dwc;
+	struct dwc3_trb_hw	*trb_hw;
+	struct dwc3_trb		trb;
+
+	unsigned int		cur_slot;
+
+	dev_vdbg(dwc->dev, "%s: req %p dma %08llx length %d%s%s\n",
+			dep->name, req, (unsigned long long) dma,
+			length, last ? " last" : "",
+			chain ? " chain" : "");
+
+	trb_hw = &dep->trb_pool[dep->free_slot & DWC3_TRB_MASK];
+	cur_slot = dep->free_slot;
+	dep->free_slot++;
+
+	/* Skip the LINK-TRB on ISOC */
+	if (((cur_slot & DWC3_TRB_MASK) == DWC3_TRB_NUM - 1) &&
+			usb_endpoint_xfer_isoc(dep->desc))
+		return;
+
+	memset(&trb, 0, sizeof(trb));
+	if (!req->trb) {
+		dwc3_gadget_move_request_queued(req);
+		req->trb = trb_hw;
+		req->trb_dma = dwc3_trb_dma_offset(dep, trb_hw);
+	}
+
+	if (usb_endpoint_xfer_isoc(dep->desc)) {
+		trb.isp_imi = true;
+		trb.csp = true;
+	} else {
+		trb.chn = chain;
+		trb.lst = last;
+	}
+
+	if (usb_endpoint_xfer_bulk(dep->desc) && dep->stream_capable)
+		trb.sid_sofn = req->request.stream_id;
+
+	switch (usb_endpoint_type(dep->desc)) {
+	case USB_ENDPOINT_XFER_CONTROL:
+		trb.trbctl = DWC3_TRBCTL_CONTROL_SETUP;
+		break;
+
+	case USB_ENDPOINT_XFER_ISOC:
+		trb.trbctl = DWC3_TRBCTL_ISOCHRONOUS_FIRST;
+
+		/* IOC every DWC3_TRB_NUM / 4 so we can refill */
+		if (!(cur_slot % (DWC3_TRB_NUM / 4)))
+			trb.ioc = last;
+		break;
+
+	case USB_ENDPOINT_XFER_BULK:
+	case USB_ENDPOINT_XFER_INT:
+		trb.trbctl = DWC3_TRBCTL_NORMAL;
+		break;
+	default:
+		/*
+		 * This is only possible with faulty memory because we
+		 * checked it already :)
+		 */
+		BUG();
+	}
+
+	trb.length	= length;
+	trb.bplh	= dma;
+	trb.hwo		= true;
+
+	dwc3_trb_to_hw(&trb, trb_hw);
+}
+
 /*
  * dwc3_prepare_trbs - setup TRBs from requests
  * @dep: endpoint for which requests are being prepared
@@ -548,18 +663,17 @@ static void dwc3_gadget_ep_free_request(struct usb_ep *ep,
  * transfers. The functions returns once there are not more TRBs available or
  * it run out of requests.
  */
-static struct dwc3_request *dwc3_prepare_trbs(struct dwc3_ep *dep,
-		bool starting)
+static void dwc3_prepare_trbs(struct dwc3_ep *dep, bool starting)
 {
-	struct dwc3_request	*req, *n, *ret = NULL;
-	struct dwc3_trb_hw	*trb_hw;
-	struct dwc3_trb		trb;
+	struct dwc3_request	*req, *n;
 	u32			trbs_left;
+	unsigned int		last_one = 0;
 
 	BUILD_BUG_ON_NOT_POWER_OF_2(DWC3_TRB_NUM);
 
 	/* the first request must not be queued */
 	trbs_left = (dep->busy_slot - dep->free_slot) & DWC3_TRB_MASK;
+
 	/*
 	 * if busy & slot are equal than it is either full or empty. If we are
 	 * starting to proceed requests then we are empty. Otherwise we ar
@@ -567,7 +681,7 @@ static struct dwc3_request *dwc3_prepare_trbs(struct dwc3_ep *dep,
 	 */
 	if (!trbs_left) {
 		if (!starting)
-			return NULL;
+			return;
 		trbs_left = DWC3_TRB_NUM;
 		/*
 		 * In case we start from scratch, we queue the ISOC requests
@@ -591,94 +705,62 @@ static struct dwc3_request *dwc3_prepare_trbs(struct dwc3_ep *dep,
 
 	/* The last TRB is a link TRB, not used for xfer */
 	if ((trbs_left <= 1) && usb_endpoint_xfer_isoc(dep->desc))
-		return NULL;
+		return;
 
 	list_for_each_entry_safe(req, n, &dep->request_list, list) {
-		unsigned int last_one = 0;
-		unsigned int cur_slot;
+		unsigned	length;
+		dma_addr_t	dma;
 
-		trb_hw = &dep->trb_pool[dep->free_slot & DWC3_TRB_MASK];
-		cur_slot = dep->free_slot;
-		dep->free_slot++;
+		if (req->request.num_mapped_sgs > 0) {
+			struct usb_request *request = &req->request;
+			struct scatterlist *sg = request->sg;
+			struct scatterlist *s;
+			int		i;
 
-		/* Skip the LINK-TRB on ISOC */
-		if (((cur_slot & DWC3_TRB_MASK) == DWC3_TRB_NUM - 1) &&
-				usb_endpoint_xfer_isoc(dep->desc))
-			continue;
+			for_each_sg(sg, s, request->num_mapped_sgs, i) {
+				unsigned chain = true;
 
-		dwc3_gadget_move_request_queued(req);
-		memset(&trb, 0, sizeof(trb));
-		trbs_left--;
+				length = sg_dma_len(s);
+				dma = sg_dma_address(s);
 
-		/* Is our TRB pool empty? */
-		if (!trbs_left)
-			last_one = 1;
-		/* Is this the last request? */
-		if (list_empty(&dep->request_list))
-			last_one = 1;
+				if (i == (request->num_mapped_sgs - 1)
+						|| sg_is_last(s)) {
+					last_one = true;
+					chain = false;
+				}
 
-		/*
-		 * FIXME we shouldn't need to set LST bit always but we are
-		 * facing some weird problem with the Hardware where it doesn't
-		 * complete even though it has been previously started.
-		 *
-		 * While we're debugging the problem, as a workaround to
-		 * multiple TRBs handling, use only one TRB at a time.
-		 */
-		last_one = 1;
+				trbs_left--;
+				if (!trbs_left)
+					last_one = true;
 
-		req->trb = trb_hw;
-		if (!ret)
-			ret = req;
+				if (last_one)
+					chain = false;
 
-		trb.bplh = req->request.dma;
+				dwc3_prepare_one_trb(dep, req, dma, length,
+						last_one, chain);
 
-		if (usb_endpoint_xfer_isoc(dep->desc)) {
-			trb.isp_imi = true;
-			trb.csp = true;
+				if (last_one)
+					break;
+			}
 		} else {
-			trb.lst = last_one;
-		}
+			dma = req->request.dma;
+			length = req->request.length;
+			trbs_left--;
 
-		if (usb_endpoint_xfer_bulk(dep->desc) && dep->stream_capable)
-			trb.sid_sofn = req->request.stream_id;
-
-		switch (usb_endpoint_type(dep->desc)) {
-		case USB_ENDPOINT_XFER_CONTROL:
-			trb.trbctl = DWC3_TRBCTL_CONTROL_SETUP;
-			break;
+			if (!trbs_left)
+				last_one = 1;
 
-		case USB_ENDPOINT_XFER_ISOC:
-			trb.trbctl = DWC3_TRBCTL_ISOCHRONOUS_FIRST;
+			/* Is this the last request? */
+			if (list_is_last(&req->list, &dep->request_list))
+				last_one = 1;
 
-			/* IOC every DWC3_TRB_NUM / 4 so we can refill */
-			if (!(cur_slot % (DWC3_TRB_NUM / 4)))
-				trb.ioc = last_one;
-			break;
+			dwc3_prepare_one_trb(dep, req, dma, length,
+					last_one, false);
 
-		case USB_ENDPOINT_XFER_BULK:
-		case USB_ENDPOINT_XFER_INT:
-			trb.trbctl = DWC3_TRBCTL_NORMAL;
-			break;
-		default:
-			/*
-			 * This is only possible with faulty memory because we
-			 * checked it already :)
-			 */
-			BUG();
+			if (last_one)
+				break;
 		}
-
-		trb.length	= req->request.length;
-		trb.hwo = true;
-
-		dwc3_trb_to_hw(&trb, trb_hw);
-		req->trb_dma = dwc3_trb_dma_offset(dep, trb_hw);
-
-		if (last_one)
-			break;
 	}
-
-	return ret;
 }
 
 static int __dwc3_gadget_kick_transfer(struct dwc3_ep *dep, u16 cmd_param,
@@ -707,11 +789,13 @@ static int __dwc3_gadget_kick_transfer(struct dwc3_ep *dep, u16 cmd_param,
 		/* req points to the first request which will be sent */
 		req = next_request(&dep->req_queued);
 	} else {
+		dwc3_prepare_trbs(dep, start_new);
+
 		/*
 		 * req points to the first request where HWO changed
 		 * from 0 to 1
 		 */
-		req = dwc3_prepare_trbs(dep, start_new);
+		req = next_request(&dep->req_queued);
 	}
 	if (!req) {
 		dep->flags |= DWC3_EP_PENDING_REQUEST;
@@ -745,8 +829,9 @@ static int __dwc3_gadget_kick_transfer(struct dwc3_ep *dep, u16 cmd_param,
 	dep->flags |= DWC3_EP_BUSY;
 	dep->res_trans_idx = dwc3_gadget_ep_get_transfer_index(dwc,
 			dep->number);
-	if (!dep->res_trans_idx)
-		printk_once(KERN_ERR "%s() res_trans_idx is invalid\n", __func__);
+
+	WARN_ON_ONCE(!dep->res_trans_idx);
+
 	return 0;
 }
 
@@ -1155,35 +1240,9 @@ static int dwc3_gadget_start(struct usb_gadget *g,
 	dwc->gadget_driver	= driver;
 	dwc->gadget.dev.driver	= &driver->driver;
 
-	reg = dwc3_readl(dwc->regs, DWC3_GCTL);
-
-	reg &= ~DWC3_GCTL_SCALEDOWN(3);
-	reg &= ~DWC3_GCTL_PRTCAPDIR(DWC3_GCTL_PRTCAP_OTG);
-	reg &= ~DWC3_GCTL_DISSCRAMBLE;
-	reg |= DWC3_GCTL_PRTCAPDIR(DWC3_GCTL_PRTCAP_DEVICE);
-
-	switch (DWC3_GHWPARAMS1_EN_PWROPT(dwc->hwparams.hwparams0)) {
-	case DWC3_GHWPARAMS1_EN_PWROPT_CLK:
-		reg &= ~DWC3_GCTL_DSBLCLKGTNG;
-		break;
-	default:
-		dev_dbg(dwc->dev, "No power optimization available\n");
-	}
-
-	/*
-	 * WORKAROUND: DWC3 revisions <1.90a have a bug
-	 * when The device fails to connect at SuperSpeed
-	 * and falls back to high-speed mode which causes
-	 * the device to enter in a Connect/Disconnect loop
-	 */
-	if (dwc->revision < DWC3_REVISION_190A)
-		reg |= DWC3_GCTL_U2RSTECN;
-
-	dwc3_writel(dwc->regs, DWC3_GCTL, reg);
-
 	reg = dwc3_readl(dwc->regs, DWC3_DCFG);
 	reg &= ~(DWC3_DCFG_SPEED_MASK);
-	reg |= DWC3_DCFG_SUPERSPEED;
+	reg |= dwc->maximum_speed;
 	dwc3_writel(dwc->regs, DWC3_DCFG, reg);
 
 	dwc->start_config_issued = false;
@@ -1192,14 +1251,14 @@ static int dwc3_gadget_start(struct usb_gadget *g,
 	dwc3_gadget_ep0_desc.wMaxPacketSize = cpu_to_le16(512);
 
 	dep = dwc->eps[0];
-	ret = __dwc3_gadget_ep_enable(dep, &dwc3_gadget_ep0_desc);
+	ret = __dwc3_gadget_ep_enable(dep, &dwc3_gadget_ep0_desc, NULL);
 	if (ret) {
 		dev_err(dwc->dev, "failed to enable %s\n", dep->name);
 		goto err0;
 	}
 
 	dep = dwc->eps[1];
-	ret = __dwc3_gadget_ep_enable(dep, &dwc3_gadget_ep0_desc);
+	ret = __dwc3_gadget_ep_enable(dep, &dwc3_gadget_ep0_desc, NULL);
 	if (ret) {
 		dev_err(dwc->dev, "failed to enable %s\n", dep->name);
 		goto err1;
@@ -1290,11 +1349,10 @@ static int __devinit dwc3_gadget_init_endpoints(struct dwc3 *dwc)
 					&dwc->gadget.ep_list);
 
 			ret = dwc3_alloc_trb_pool(dep);
-			if (ret) {
-				dev_err(dwc->dev, "%s: failed to allocate TRB pool\n", dep->name);
+			if (ret)
 				return ret;
-			}
 		}
+
 		INIT_LIST_HEAD(&dep->request_list);
 		INIT_LIST_HEAD(&dep->req_queued);
 	}
@@ -1334,8 +1392,10 @@ static int dwc3_cleanup_done_reqs(struct dwc3 *dwc, struct dwc3_ep *dep,
 
 	do {
 		req = next_request(&dep->req_queued);
-		if (!req)
-			break;
+		if (!req) {
+			WARN_ON_ONCE(1);
+			return 1;
+		}
 
 		dwc3_trb_to_nat(req->trb, &trb);
 
@@ -1400,6 +1460,31 @@ static void dwc3_endpoint_transfer_complete(struct dwc3 *dwc,
 		dep->flags &= ~DWC3_EP_BUSY;
 		dep->res_trans_idx = 0;
 	}
+
+	/*
+	 * WORKAROUND: This is the 2nd half of U1/U2 -> U0 workaround.
+	 * See dwc3_gadget_linksts_change_interrupt() for 1st half.
+	 */
+	if (dwc->revision < DWC3_REVISION_183A) {
+		u32		reg;
+		int		i;
+
+		for (i = 0; i < DWC3_ENDPOINTS_NUM; i++) {
+			struct dwc3_ep	*dep = dwc->eps[i];
+
+			if (!(dep->flags & DWC3_EP_ENABLED))
+				continue;
+
+			if (!list_empty(&dep->req_queued))
+				return;
+		}
+
+		reg = dwc3_readl(dwc->regs, DWC3_DCTL);
+		reg |= dwc->u1u2;
+		dwc3_writel(dwc->regs, DWC3_DCTL, reg);
+
+		dwc->u1u2 = 0;
+	}
 }
 
 static void dwc3_gadget_start_isoc(struct dwc3 *dwc,
@@ -1639,6 +1724,7 @@ static void dwc3_gadget_disconnect_interrupt(struct dwc3 *dwc)
 	dwc->start_config_issued = false;
 
 	dwc->gadget.speed = USB_SPEED_UNKNOWN;
+	dwc->setup_packet_pending = false;
 }
 
 static void dwc3_gadget_usb3_phy_power(struct dwc3 *dwc, int on)
@@ -1675,6 +1761,40 @@ static void dwc3_gadget_reset_interrupt(struct dwc3 *dwc)
 
 	dev_vdbg(dwc->dev, "%s\n", __func__);
 
+	/*
+	 * WORKAROUND: DWC3 revisions <1.88a have an issue which
+	 * would cause a missing Disconnect Event if there's a
+	 * pending Setup Packet in the FIFO.
+	 *
+	 * There's no suggested workaround on the official Bug
+	 * report, which states that "unless the driver/application
+	 * is doing any special handling of a disconnect event,
+	 * there is no functional issue".
+	 *
+	 * Unfortunately, it turns out that we _do_ some special
+	 * handling of a disconnect event, namely complete all
+	 * pending transfers, notify gadget driver of the
+	 * disconnection, and so on.
+	 *
+	 * Our suggested workaround is to follow the Disconnect
+	 * Event steps here, instead, based on a setup_packet_pending
+	 * flag. Such flag gets set whenever we have a XferNotReady
+	 * event on EP0 and gets cleared on XferComplete for the
+	 * same endpoint.
+	 *
+	 * Refers to:
+	 *
+	 * STAR#9000466709: RTL: Device : Disconnect event not
+	 * generated if setup packet pending in FIFO
+	 */
+	if (dwc->revision < DWC3_REVISION_188A) {
+		if (dwc->setup_packet_pending)
+			dwc3_gadget_disconnect_interrupt(dwc);
+	}
+
+	/* after reset -> Default State */
+	dwc->dev_state = DWC3_DEFAULT_STATE;
+
 	/* Enable PHYs */
 	dwc3_gadget_usb2_phy_power(dwc, true);
 	dwc3_gadget_usb3_phy_power(dwc, true);
@@ -1755,6 +1875,22 @@ static void dwc3_gadget_conndone_interrupt(struct dwc3 *dwc)
 
 	switch (speed) {
 	case DWC3_DCFG_SUPERSPEED:
+		/*
+		 * WORKAROUND: DWC3 revisions <1.90a have an issue which
+		 * would cause a missing USB3 Reset event.
+		 *
+		 * In such situations, we should force a USB3 Reset
+		 * event by calling our dwc3_gadget_reset_interrupt()
+		 * routine.
+		 *
+		 * Refers to:
+		 *
+		 * STAR#9000483510: RTL: SS : USB3 reset event may
+		 * not be generated always when the link enters poll
+		 */
+		if (dwc->revision < DWC3_REVISION_190A)
+			dwc3_gadget_reset_interrupt(dwc);
+
 		dwc3_gadget_ep0_desc.wMaxPacketSize = cpu_to_le16(512);
 		dwc->gadget.ep0->maxpacket = 512;
 		dwc->gadget.speed = USB_SPEED_SUPER;
@@ -1781,14 +1917,14 @@ static void dwc3_gadget_conndone_interrupt(struct dwc3 *dwc)
 	dwc3_gadget_disable_phy(dwc, dwc->gadget.speed);
 
 	dep = dwc->eps[0];
-	ret = __dwc3_gadget_ep_enable(dep, &dwc3_gadget_ep0_desc);
+	ret = __dwc3_gadget_ep_enable(dep, &dwc3_gadget_ep0_desc, NULL);
 	if (ret) {
 		dev_err(dwc->dev, "failed to enable %s\n", dep->name);
 		return;
 	}
 
 	dep = dwc->eps[1];
-	ret = __dwc3_gadget_ep_enable(dep, &dwc3_gadget_ep0_desc);
+	ret = __dwc3_gadget_ep_enable(dep, &dwc3_gadget_ep0_desc, NULL);
 	if (ret) {
 		dev_err(dwc->dev, "failed to enable %s\n", dep->name);
 		return;
@@ -1818,8 +1954,55 @@ static void dwc3_gadget_wakeup_interrupt(struct dwc3 *dwc)
 static void dwc3_gadget_linksts_change_interrupt(struct dwc3 *dwc,
 		unsigned int evtinfo)
 {
-	/*  The fith bit says SuperSpeed yes or no. */
-	dwc->link_state = evtinfo & DWC3_LINK_STATE_MASK;
+	enum dwc3_link_state	next = evtinfo & DWC3_LINK_STATE_MASK;
+
+	/*
+	 * WORKAROUND: DWC3 Revisions <1.83a have an issue which, depending
+	 * on the link partner, the USB session might do multiple entry/exit
+	 * of low power states before a transfer takes place.
+	 *
+	 * Due to this problem, we might experience lower throughput. The
+	 * suggested workaround is to disable DCTL[12:9] bits if we're
+	 * transitioning from U1/U2 to U0 and enable those bits again
+	 * after a transfer completes and there are no pending transfers
+	 * on any of the enabled endpoints.
+	 *
+	 * This is the first half of that workaround.
+	 *
+	 * Refers to:
+	 *
+	 * STAR#9000446952: RTL: Device SS : if U1/U2 ->U0 takes >128us
+	 * core send LGO_Ux entering U0
+	 */
+	if (dwc->revision < DWC3_REVISION_183A) {
+		if (next == DWC3_LINK_STATE_U0) {
+			u32	u1u2;
+			u32	reg;
+
+			switch (dwc->link_state) {
+			case DWC3_LINK_STATE_U1:
+			case DWC3_LINK_STATE_U2:
+				reg = dwc3_readl(dwc->regs, DWC3_DCTL);
+				u1u2 = reg & (DWC3_DCTL_INITU2ENA
+						| DWC3_DCTL_ACCEPTU2ENA
+						| DWC3_DCTL_INITU1ENA
+						| DWC3_DCTL_ACCEPTU1ENA);
+
+				if (!dwc->u1u2)
+					dwc->u1u2 = reg & u1u2;
+
+				reg &= ~u1u2;
+
+				dwc3_writel(dwc->regs, DWC3_DCTL, reg);
+				break;
+			default:
+				/* do nothing */
+				break;
+			}
+		}
+	}
+
+	dwc->link_state = next;
 
 	dev_vdbg(dwc->dev, "%s link %d\n", __func__, dwc->link_state);
 }
@@ -1925,7 +2108,7 @@ static irqreturn_t dwc3_interrupt(int irq, void *_dwc)
 
 	spin_lock(&dwc->lock);
 
-	for (i = 0; i < DWC3_EVENT_BUFFERS_NUM; i++) {
+	for (i = 0; i < dwc->num_event_buffers; i++) {
 		irqreturn_t status;
 
 		status = dwc3_process_event_buf(dwc, i);
@@ -1986,9 +2169,10 @@ int __devinit dwc3_gadget_init(struct dwc3 *dwc)
 	dev_set_name(&dwc->gadget.dev, "gadget");
 
 	dwc->gadget.ops			= &dwc3_gadget_ops;
-	dwc->gadget.is_dualspeed	= true;
+	dwc->gadget.max_speed		= USB_SPEED_SUPER;
 	dwc->gadget.speed		= USB_SPEED_UNKNOWN;
 	dwc->gadget.dev.parent		= dwc->dev;
+	dwc->gadget.sg_supported	= true;
 
 	dma_set_coherent_mask(&dwc->gadget.dev, dwc->dev->coherent_dma_mask);
 
@@ -2076,7 +2260,6 @@ err0:
 void dwc3_gadget_exit(struct dwc3 *dwc)
 {
 	int			irq;
-	int			i;
 
 	usb_del_gadget_udc(&dwc->gadget);
 	irq = platform_get_irq(to_platform_device(dwc->dev), 0);
@@ -2084,9 +2267,6 @@ void dwc3_gadget_exit(struct dwc3 *dwc)
 	dwc3_writel(dwc->regs, DWC3_DEVTEN, 0x00);
 	free_irq(irq, dwc);
 
-	for (i = 0; i < ARRAY_SIZE(dwc->eps); i++)
-		__dwc3_gadget_ep_disable(dwc->eps[i]);
-
 	dwc3_gadget_free_endpoints(dwc);
 
 	dma_free_coherent(dwc->dev, 512, dwc->ep0_bounce,
diff --git a/drivers/usb/dwc3/gadget.h b/drivers/usb/dwc3/gadget.h
index 71145a449d99..d97f467d41cc 100644
--- a/drivers/usb/dwc3/gadget.h
+++ b/drivers/usb/dwc3/gadget.h
@@ -79,19 +79,6 @@ struct dwc3_gadget_ep_cmd_params {
 
 /* -------------------------------------------------------------------------- */
 
-struct dwc3_request {
-	struct usb_request	request;
-	struct list_head	list;
-	struct dwc3_ep		*dep;
-
-	u8			epnum;
-	struct dwc3_trb_hw	*trb;
-	dma_addr_t		trb_dma;
-
-	unsigned		direction:1;
-	unsigned		mapped:1;
-	unsigned		queued:1;
-};
 #define to_dwc3_request(r)	(container_of(r, struct dwc3_request, request))
 
 static inline struct dwc3_request *next_request(struct list_head *list)
@@ -110,23 +97,11 @@ static inline void dwc3_gadget_move_request_queued(struct dwc3_request *req)
 	list_move_tail(&req->list, &dep->req_queued);
 }
 
-#if defined(CONFIG_USB_GADGET_DWC3) || defined(CONFIG_USB_GADGET_DWC3_MODULE)
-int dwc3_gadget_init(struct dwc3 *dwc);
-void dwc3_gadget_exit(struct dwc3 *dwc);
-#else
-static inline int dwc3_gadget_init(struct dwc3 *dwc) { return 0; }
-static inline void dwc3_gadget_exit(struct dwc3 *dwc) { }
-static inline int dwc3_send_gadget_ep_cmd(struct dwc3 *dwc, unsigned ep,
-		unsigned cmd, struct dwc3_gadget_ep_cmd_params *params)
-{
-	return 0;
-}
-#endif
-
 void dwc3_gadget_giveback(struct dwc3_ep *dep, struct dwc3_request *req,
 		int status);
 
-void dwc3_ep0_interrupt(struct dwc3 *dwc, const struct dwc3_event_depevt *event);
+void dwc3_ep0_interrupt(struct dwc3 *dwc,
+		const struct dwc3_event_depevt *event);
 void dwc3_ep0_out_start(struct dwc3 *dwc);
 int dwc3_gadget_ep0_queue(struct usb_ep *ep, struct usb_request *request,
 		gfp_t gfp_flags);
diff --git a/drivers/usb/dwc3/host.c b/drivers/usb/dwc3/host.c
new file mode 100644
index 000000000000..7cfe211b6c37
--- /dev/null
+++ b/drivers/usb/dwc3/host.c
@@ -0,0 +1,102 @@
+/**
+ * host.c - DesignWare USB3 DRD Controller Host Glue
+ *
+ * Copyright (C) 2011 Texas Instruments Incorporated - http://www.ti.com
+ *
+ * Authors: Felipe Balbi <balbi@ti.com>,
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions, and the following disclaimer,
+ *    without modification.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. The names of the above-listed copyright holders may not be used
+ *    to endorse or promote products derived from this software without
+ *    specific prior written permission.
+ *
+ * ALTERNATIVELY, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2, as published by the Free
+ * Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include <linux/platform_device.h>
+
+#include "core.h"
+
+static struct resource generic_resources[] = {
+	{
+		.flags = IORESOURCE_IRQ,
+	},
+	{
+		.flags = IORESOURCE_MEM,
+	},
+};
+
+int dwc3_host_init(struct dwc3 *dwc)
+{
+	struct platform_device	*xhci;
+	int			ret;
+
+	xhci = platform_device_alloc("xhci", -1);
+	if (!xhci) {
+		dev_err(dwc->dev, "couldn't allocate xHCI device\n");
+		ret = -ENOMEM;
+		goto err0;
+	}
+
+	dma_set_coherent_mask(&xhci->dev, dwc->dev->coherent_dma_mask);
+
+	xhci->dev.parent	= dwc->dev;
+	xhci->dev.dma_mask	= dwc->dev->dma_mask;
+	xhci->dev.dma_parms	= dwc->dev->dma_parms;
+
+	dwc->xhci = xhci;
+
+	/* setup resources */
+	generic_resources[0].start = dwc->irq;
+
+	generic_resources[1].start = dwc->res->start;
+	generic_resources[1].end = dwc->res->start + 0x7fff;
+
+	ret = platform_device_add_resources(xhci, generic_resources,
+			ARRAY_SIZE(generic_resources));
+	if (ret) {
+		dev_err(dwc->dev, "couldn't add resources to xHCI device\n");
+		goto err1;
+	}
+
+	ret = platform_device_add(xhci);
+	if (ret) {
+		dev_err(dwc->dev, "failed to register xHCI device\n");
+		goto err1;
+	}
+
+	return 0;
+
+err1:
+	platform_device_put(xhci);
+
+err0:
+	return ret;
+}
+
+void dwc3_host_exit(struct dwc3 *dwc)
+{
+	platform_device_unregister(dwc->xhci);
+}
diff --git a/drivers/usb/dwc3/io.h b/drivers/usb/dwc3/io.h
index bc957db1ea4b..071d561f3e68 100644
--- a/drivers/usb/dwc3/io.h
+++ b/drivers/usb/dwc3/io.h
@@ -39,7 +39,7 @@
 #ifndef __DRIVERS_USB_DWC3_IO_H
 #define __DRIVERS_USB_DWC3_IO_H
 
-#include <asm/io.h>
+#include <linux/io.h>
 
 static inline u32 dwc3_readl(void __iomem *base, u32 offset)
 {
diff --git a/drivers/usb/gadget/Kconfig b/drivers/usb/gadget/Kconfig
index 12a401a144b7..7ecb68a67411 100644
--- a/drivers/usb/gadget/Kconfig
+++ b/drivers/usb/gadget/Kconfig
@@ -15,6 +15,7 @@
 
 menuconfig USB_GADGET
 	tristate "USB Gadget Support"
+	select NLS
 	help
 	   USB is a master/slave protocol, organized with one master
 	   host (such as a PC) controlling up to 127 peripheral devices.
@@ -124,7 +125,6 @@ config USB_GADGET_STORAGE_NUM_BUFFERS
 #
 choice
 	prompt "USB Peripheral Controller"
-	depends on USB_GADGET
 	help
 	   A USB device uses a controller to talk to its host.
 	   Systems should have only one such upstream link.
@@ -234,7 +234,6 @@ config USB_R8A66597
 
 config USB_RENESAS_USBHS_UDC
 	tristate 'Renesas USBHS controller'
-	depends on SUPERH || ARCH_SHMOBILE
 	depends on USB_RENESAS_USBHS
 	select USB_GADGET_DUALSPEED
 	help
@@ -309,25 +308,13 @@ config USB_S3C_HSUDC
 
 	  This driver has been tested on S3C2416 and S3C2450 processors.
 
-config USB_PXA_U2O
-	tristate "PXA9xx Processor USB2.0 controller"
-	depends on ARCH_MMP
+config USB_MV_UDC
+	tristate "Marvell USB2.0 Device Controller"
 	select USB_GADGET_DUALSPEED
 	help
-	  PXA9xx Processor series include a high speed USB2.0 device
-	  controller, which support high speed and full speed USB peripheral.
-
-config USB_GADGET_DWC3
-	tristate "DesignWare USB3.0 (DRD) Controller"
-	depends on USB_DWC3
-	select USB_GADGET_DUALSPEED
-	select USB_GADGET_SUPERSPEED
-	help
-	  DesignWare USB3.0 controller is a SuperSpeed USB3.0 Controller
-	  which can be configured for peripheral-only, host-only, hub-only
-	  and Dual-Role operation. This Controller was first integrated into
-	  the OMAP5 series of processors. More information about the OMAP5
-	  version of this controller, refer to http://www.ti.com/omap5.
+	  Marvell Socs (including PXA and MMP series) include a high speed
+	  USB2.0 OTG controller, which can be configured as high speed or
+	  full speed USB peripheral.
 
 #
 # Controllers available in both integrated and discrete versions
@@ -543,12 +530,10 @@ endchoice
 # Selected by UDC drivers that support high-speed operation.
 config USB_GADGET_DUALSPEED
 	bool
-	depends on USB_GADGET
 
 # Selected by UDC drivers that support super-speed opperation
 config USB_GADGET_SUPERSPEED
 	bool
-	depends on USB_GADGET
 	depends on USB_GADGET_DUALSPEED
 
 #
@@ -556,7 +541,6 @@ config USB_GADGET_SUPERSPEED
 #
 choice
 	tristate "USB Gadget Drivers"
-	depends on USB_GADGET
 	default USB_ETH
 	help
 	  A Linux "Gadget Driver" talks to the USB Peripheral Controller
diff --git a/drivers/usb/gadget/Makefile b/drivers/usb/gadget/Makefile
index b54ac6190890..b7f6eefc3927 100644
--- a/drivers/usb/gadget/Makefile
+++ b/drivers/usb/gadget/Makefile
@@ -27,7 +27,7 @@ obj-$(CONFIG_USB_S3C_HSOTG)	+= s3c-hsotg.o
 obj-$(CONFIG_USB_S3C_HSUDC)	+= s3c-hsudc.o
 obj-$(CONFIG_USB_LANGWELL)	+= langwell_udc.o
 obj-$(CONFIG_USB_EG20T)		+= pch_udc.o
-obj-$(CONFIG_USB_PXA_U2O)	+= mv_udc.o
+obj-$(CONFIG_USB_MV_UDC)	+= mv_udc.o
 mv_udc-y			:= mv_udc_core.o
 obj-$(CONFIG_USB_CI13XXX_MSM)	+= ci13xxx_msm.o
 obj-$(CONFIG_USB_FUSB300)	+= fusb300_udc.o
diff --git a/drivers/usb/gadget/amd5536udc.c b/drivers/usb/gadget/amd5536udc.c
index 45f422ac103f..e9a2c5c44454 100644
--- a/drivers/usb/gadget/amd5536udc.c
+++ b/drivers/usb/gadget/amd5536udc.c
@@ -1959,7 +1959,7 @@ static int amd5536_start(struct usb_gadget_driver *driver,
 	u32 tmp;
 
 	if (!driver || !bind || !driver->setup
-			|| driver->speed < USB_SPEED_HIGH)
+			|| driver->max_speed < USB_SPEED_HIGH)
 		return -EINVAL;
 	if (!dev)
 		return -ENODEV;
@@ -3349,7 +3349,7 @@ static int udc_probe(struct udc *dev)
 	dev_set_name(&dev->gadget.dev, "gadget");
 	dev->gadget.dev.release = gadget_release;
 	dev->gadget.name = name;
-	dev->gadget.is_dualspeed = 1;
+	dev->gadget.max_speed = USB_SPEED_HIGH;
 
 	/* init registers, interrupts, ... */
 	startup_registers(dev);
diff --git a/drivers/usb/gadget/at91_udc.c b/drivers/usb/gadget/at91_udc.c
index 8efe0fa9228d..143a7256b598 100644
--- a/drivers/usb/gadget/at91_udc.c
+++ b/drivers/usb/gadget/at91_udc.c
@@ -1633,7 +1633,7 @@ static int at91_start(struct usb_gadget_driver *driver,
 	unsigned long	flags;
 
 	if (!driver
-			|| driver->speed < USB_SPEED_FULL
+			|| driver->max_speed < USB_SPEED_FULL
 			|| !bind
 			|| !driver->setup) {
 		DBG("bad parameter.\n");
@@ -1748,7 +1748,7 @@ static int __init at91udc_probe(struct platform_device *pdev)
 
 	/* rm9200 needs manual D+ pullup; off by default */
 	if (cpu_is_at91rm9200()) {
-		if (udc->board.pullup_pin <= 0) {
+		if (gpio_is_valid(udc->board.pullup_pin)) {
 			DBG("no D+ pullup?\n");
 			retval = -ENODEV;
 			goto fail0;
@@ -1815,7 +1815,7 @@ static int __init at91udc_probe(struct platform_device *pdev)
 		DBG("request irq %d failed\n", udc->udp_irq);
 		goto fail1;
 	}
-	if (udc->board.vbus_pin > 0) {
+	if (gpio_is_valid(udc->board.vbus_pin)) {
 		retval = gpio_request(udc->board.vbus_pin, "udc_vbus");
 		if (retval < 0) {
 			DBG("request vbus pin failed\n");
@@ -1859,10 +1859,10 @@ static int __init at91udc_probe(struct platform_device *pdev)
 	INFO("%s version %s\n", driver_name, DRIVER_VERSION);
 	return 0;
 fail4:
-	if (udc->board.vbus_pin > 0 && !udc->board.vbus_polled)
+	if (gpio_is_valid(udc->board.vbus_pin) && !udc->board.vbus_polled)
 		free_irq(udc->board.vbus_pin, udc);
 fail3:
-	if (udc->board.vbus_pin > 0)
+	if (gpio_is_valid(udc->board.vbus_pin))
 		gpio_free(udc->board.vbus_pin);
 fail2:
 	free_irq(udc->udp_irq, udc);
@@ -1897,7 +1897,7 @@ static int __exit at91udc_remove(struct platform_device *pdev)
 
 	device_init_wakeup(&pdev->dev, 0);
 	remove_debug_file(udc);
-	if (udc->board.vbus_pin > 0) {
+	if (gpio_is_valid(udc->board.vbus_pin)) {
 		free_irq(udc->board.vbus_pin, udc);
 		gpio_free(udc->board.vbus_pin);
 	}
@@ -1941,7 +1941,7 @@ static int at91udc_suspend(struct platform_device *pdev, pm_message_t mesg)
 		enable_irq_wake(udc->udp_irq);
 
 	udc->active_suspend = wake;
-	if (udc->board.vbus_pin > 0 && !udc->board.vbus_polled && wake)
+	if (gpio_is_valid(udc->board.vbus_pin) && !udc->board.vbus_polled && wake)
 		enable_irq_wake(udc->board.vbus_pin);
 	return 0;
 }
@@ -1951,7 +1951,7 @@ static int at91udc_resume(struct platform_device *pdev)
 	struct at91_udc *udc = platform_get_drvdata(pdev);
 	unsigned long	flags;
 
-	if (udc->board.vbus_pin > 0 && !udc->board.vbus_polled &&
+	if (gpio_is_valid(udc->board.vbus_pin) && !udc->board.vbus_polled &&
 	    udc->active_suspend)
 		disable_irq_wake(udc->board.vbus_pin);
 
diff --git a/drivers/usb/gadget/atmel_usba_udc.c b/drivers/usb/gadget/atmel_usba_udc.c
index 271a9d873608..e2fb6d583bd9 100644
--- a/drivers/usb/gadget/atmel_usba_udc.c
+++ b/drivers/usb/gadget/atmel_usba_udc.c
@@ -1038,7 +1038,7 @@ static struct usba_udc the_udc = {
 	.gadget	= {
 		.ops		= &usba_udc_ops,
 		.ep_list	= LIST_HEAD_INIT(the_udc.gadget.ep_list),
-		.is_dualspeed	= 1,
+		.max_speed	= USB_SPEED_HIGH,
 		.name		= "atmel_usba_udc",
 		.dev	= {
 			.init_name	= "gadget",
diff --git a/drivers/usb/gadget/ci13xxx_udc.c b/drivers/usb/gadget/ci13xxx_udc.c
index 9a0c3979ff43..27e313718422 100644
--- a/drivers/usb/gadget/ci13xxx_udc.c
+++ b/drivers/usb/gadget/ci13xxx_udc.c
@@ -182,6 +182,16 @@ static inline int hw_ep_bit(int num, int dir)
 	return num + (dir ? 16 : 0);
 }
 
+static int ep_to_bit(int n)
+{
+	int fill = 16 - hw_ep_max / 2;
+
+	if (n >= hw_ep_max / 2)
+		n += fill;
+
+	return n;
+}
+
 /**
  * hw_aread: reads from register bitfield
  * @addr: address relative to bus map
@@ -440,12 +450,13 @@ static int hw_ep_get_halt(int num, int dir)
 /**
  * hw_test_and_clear_setup_status: test & clear setup status (execute without
  *                                 interruption)
- * @n: bit number (endpoint)
+ * @n: endpoint number
  *
  * This function returns setup status
  */
 static int hw_test_and_clear_setup_status(int n)
 {
+	n = ep_to_bit(n);
 	return hw_ctest_and_clear(CAP_ENDPTSETUPSTAT, BIT(n));
 }
 
@@ -641,12 +652,13 @@ static int hw_register_write(u16 addr, u32 data)
 /**
  * hw_test_and_clear_complete: test & clear complete status (execute without
  *                             interruption)
- * @n: bit number (endpoint)
+ * @n: endpoint number
  *
  * This function returns complete status
  */
 static int hw_test_and_clear_complete(int n)
 {
+	n = ep_to_bit(n);
 	return hw_ctest_and_clear(CAP_ENDPTCOMPLETE, BIT(n));
 }
 
@@ -754,8 +766,11 @@ static ssize_t show_device(struct device *dev, struct device_attribute *attr,
 
 	n += scnprintf(buf + n, PAGE_SIZE - n, "speed             = %d\n",
 		       gadget->speed);
+	n += scnprintf(buf + n, PAGE_SIZE - n, "max_speed         = %d\n",
+		       gadget->max_speed);
+	/* TODO: Scheduled for removal in 3.8. */
 	n += scnprintf(buf + n, PAGE_SIZE - n, "is_dualspeed      = %d\n",
-		       gadget->is_dualspeed);
+		       gadget_is_dualspeed(gadget));
 	n += scnprintf(buf + n, PAGE_SIZE - n, "is_otg            = %d\n",
 		       gadget->is_otg);
 	n += scnprintf(buf + n, PAGE_SIZE - n, "is_a_peripheral   = %d\n",
@@ -798,7 +813,7 @@ static ssize_t show_driver(struct device *dev, struct device_attribute *attr,
 	n += scnprintf(buf + n, PAGE_SIZE - n, "function  = %s\n",
 		       (driver->function ? driver->function : ""));
 	n += scnprintf(buf + n, PAGE_SIZE - n, "max speed = %d\n",
-		       driver->speed);
+		       driver->max_speed);
 
 	return n;
 }
@@ -2563,9 +2578,7 @@ static int ci13xxx_start(struct usb_gadget_driver *driver,
 	if (driver             == NULL ||
 	    bind               == NULL ||
 	    driver->setup      == NULL ||
-	    driver->disconnect == NULL ||
-	    driver->suspend    == NULL ||
-	    driver->resume     == NULL)
+	    driver->disconnect == NULL)
 		return -EINVAL;
 	else if (udc         == NULL)
 		return -ENODEV;
@@ -2693,8 +2706,6 @@ static int ci13xxx_stop(struct usb_gadget_driver *driver)
 	    driver->unbind     == NULL ||
 	    driver->setup      == NULL ||
 	    driver->disconnect == NULL ||
-	    driver->suspend    == NULL ||
-	    driver->resume     == NULL ||
 	    driver             != udc->driver)
 		return -EINVAL;
 
@@ -2793,7 +2804,7 @@ static irqreturn_t udc_irq(void)
 			isr_statistics.pci++;
 			udc->gadget.speed = hw_port_is_high_speed() ?
 				USB_SPEED_HIGH : USB_SPEED_FULL;
-			if (udc->suspended) {
+			if (udc->suspended && udc->driver->resume) {
 				spin_unlock(udc->lock);
 				udc->driver->resume(&udc->gadget);
 				spin_lock(udc->lock);
@@ -2807,7 +2818,8 @@ static irqreturn_t udc_irq(void)
 			isr_tr_complete_handler(udc);
 		}
 		if (USBi_SLI & intr) {
-			if (udc->gadget.speed != USB_SPEED_UNKNOWN) {
+			if (udc->gadget.speed != USB_SPEED_UNKNOWN &&
+			    udc->driver->suspend) {
 				udc->suspended = 1;
 				spin_unlock(udc->lock);
 				udc->driver->suspend(&udc->gadget);
@@ -2871,7 +2883,7 @@ static int udc_probe(struct ci13xxx_udc_driver *driver, struct device *dev,
 
 	udc->gadget.ops          = &usb_gadget_ops;
 	udc->gadget.speed        = USB_SPEED_UNKNOWN;
-	udc->gadget.is_dualspeed = 1;
+	udc->gadget.max_speed    = USB_SPEED_HIGH;
 	udc->gadget.is_otg       = 0;
 	udc->gadget.name         = driver->name;
 
diff --git a/drivers/usb/gadget/ci13xxx_udc.h b/drivers/usb/gadget/ci13xxx_udc.h
index 23707775cb43..f4871e1fac59 100644
--- a/drivers/usb/gadget/ci13xxx_udc.h
+++ b/drivers/usb/gadget/ci13xxx_udc.h
@@ -127,7 +127,7 @@ struct ci13xxx {
 	struct ci13xxx_ep          ci13xxx_ep[ENDPT_MAX]; /* extended endpts */
 	u32                        ep0_dir;    /* ep0 direction */
 #define ep0out ci13xxx_ep[0]
-#define ep0in  ci13xxx_ep[16]
+#define ep0in  ci13xxx_ep[hw_ep_max / 2]
 	u8                         remote_wakeup; /* Is remote wakeup feature
 							enabled by the host? */
 	u8                         suspended;  /* suspended by the host */
diff --git a/drivers/usb/gadget/composite.c b/drivers/usb/gadget/composite.c
index f71b0787983f..a95de6a4a134 100644
--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -1535,9 +1535,9 @@ composite_resume(struct usb_gadget *gadget)
 
 static struct usb_gadget_driver composite_driver = {
 #ifdef CONFIG_USB_GADGET_SUPERSPEED
-	.speed		= USB_SPEED_SUPER,
+	.max_speed	= USB_SPEED_SUPER,
 #else
-	.speed		= USB_SPEED_HIGH,
+	.max_speed	= USB_SPEED_HIGH,
 #endif
 
 	.unbind		= composite_unbind,
@@ -1584,8 +1584,8 @@ int usb_composite_probe(struct usb_composite_driver *driver,
 		driver->iProduct = driver->name;
 	composite_driver.function =  (char *) driver->name;
 	composite_driver.driver.name = driver->name;
-	composite_driver.speed = min((u8)composite_driver.speed,
-				     (u8)driver->max_speed);
+	composite_driver.max_speed =
+		min_t(u8, composite_driver.max_speed, driver->max_speed);
 	composite = driver;
 	composite_gadget_bind = bind;
 
diff --git a/drivers/usb/gadget/dbgp.c b/drivers/usb/gadget/dbgp.c
index 6256420089f3..19d7bb0df75a 100644
--- a/drivers/usb/gadget/dbgp.c
+++ b/drivers/usb/gadget/dbgp.c
@@ -404,7 +404,7 @@ fail:
 
 static struct usb_gadget_driver dbgp_driver = {
 	.function = "dbgp",
-	.speed = USB_SPEED_HIGH,
+	.max_speed = USB_SPEED_HIGH,
 	.unbind = dbgp_unbind,
 	.setup = dbgp_setup,
 	.disconnect = dbgp_disconnect,
diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c
index ab8f1b488d54..db815c2da7ed 100644
--- a/drivers/usb/gadget/dummy_hcd.c
+++ b/drivers/usb/gadget/dummy_hcd.c
@@ -823,19 +823,18 @@ static int dummy_pullup (struct usb_gadget *_gadget, int value)
 
 	if (value && dum->driver) {
 		if (mod_data.is_super_speed)
-			dum->gadget.speed = dum->driver->speed;
+			dum->gadget.speed = dum->driver->max_speed;
 		else if (mod_data.is_high_speed)
 			dum->gadget.speed = min_t(u8, USB_SPEED_HIGH,
-					dum->driver->speed);
+					dum->driver->max_speed);
 		else
 			dum->gadget.speed = USB_SPEED_FULL;
 		dummy_udc_udpate_ep0(dum);
 
-		if (dum->gadget.speed < dum->driver->speed)
+		if (dum->gadget.speed < dum->driver->max_speed)
 			dev_dbg(udc_dev(dum), "This device can perform faster"
-					" if you connect it to a %s port...\n",
-					(dum->driver->speed == USB_SPEED_SUPER ?
-					 "SuperSpeed" : "HighSpeed"));
+				" if you connect it to a %s port...\n",
+				usb_speed_string(dum->driver->max_speed));
 	}
 	dum_hcd = gadget_to_dummy_hcd(_gadget);
 
@@ -898,7 +897,7 @@ static int dummy_udc_start(struct usb_gadget *g,
 	struct dummy_hcd	*dum_hcd = gadget_to_dummy_hcd(g);
 	struct dummy		*dum = dum_hcd->dum;
 
-	if (driver->speed == USB_SPEED_UNKNOWN)
+	if (driver->max_speed == USB_SPEED_UNKNOWN)
 		return -EINVAL;
 
 	/*
@@ -977,7 +976,7 @@ static int dummy_udc_probe (struct platform_device *pdev)
 
 	dum->gadget.name = gadget_name;
 	dum->gadget.ops = &dummy_ops;
-	dum->gadget.is_dualspeed = 1;
+	dum->gadget.max_speed = USB_SPEED_SUPER;
 
 	dev_set_name(&dum->gadget.dev, "gadget");
 	dum->gadget.dev.parent = &pdev->dev;
diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index 4dff83d2f265..753aa0683ac1 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -149,7 +149,7 @@ ep_matches (
 	switch (type) {
 	case USB_ENDPOINT_XFER_INT:
 		/* INT:  limit 64 bytes full speed, 1024 high/super speed */
-		if (!gadget->is_dualspeed && max > 64)
+		if (!gadget_is_dualspeed(gadget) && max > 64)
 			return 0;
 		/* FALLTHROUGH */
 
@@ -157,12 +157,12 @@ ep_matches (
 		/* ISO:  limit 1023 bytes full speed, 1024 high/super speed */
 		if (ep->maxpacket < max)
 			return 0;
-		if (!gadget->is_dualspeed && max > 1023)
+		if (!gadget_is_dualspeed(gadget) && max > 1023)
 			return 0;
 
 		/* BOTH:  "high bandwidth" works only at high speed */
 		if ((desc->wMaxPacketSize & cpu_to_le16(3<<11))) {
-			if (!gadget->is_dualspeed)
+			if (!gadget_is_dualspeed(gadget))
 				return 0;
 			/* configure your hardware with enough buffering!! */
 		}
diff --git a/drivers/usb/gadget/f_fs.c b/drivers/usb/gadget/f_fs.c
index acb38004eec0..f63dc6c150d2 100644
--- a/drivers/usb/gadget/f_fs.c
+++ b/drivers/usb/gadget/f_fs.c
@@ -1037,7 +1037,6 @@ static int ffs_sb_fill(struct super_block *sb, void *_data, int silent)
 {
 	struct ffs_sb_fill_data *data = _data;
 	struct inode	*inode;
-	struct dentry	*d;
 	struct ffs_data	*ffs;
 
 	ENTER();
@@ -1045,7 +1044,7 @@ static int ffs_sb_fill(struct super_block *sb, void *_data, int silent)
 	/* Initialise data */
 	ffs = ffs_data_new();
 	if (unlikely(!ffs))
-		goto enomem0;
+		goto Enomem;
 
 	ffs->sb              = sb;
 	ffs->dev_name        = data->dev_name;
@@ -1065,26 +1064,21 @@ static int ffs_sb_fill(struct super_block *sb, void *_data, int silent)
 				  &simple_dir_inode_operations,
 				  &data->perms);
 	if (unlikely(!inode))
-		goto enomem1;
-	d = d_alloc_root(inode);
-	if (unlikely(!d))
-		goto enomem2;
-	sb->s_root = d;
+		goto Enomem;
+	sb->s_root = d_alloc_root(inode);
+	if (unlikely(!sb->s_root)) {
+		iput(inode);
+		goto Enomem;
+	}
 
 	/* EP0 file */
 	if (unlikely(!ffs_sb_create_file(sb, "ep0", ffs,
 					 &ffs_ep0_operations, NULL)))
-		goto enomem3;
+		goto Enomem;
 
 	return 0;
 
-enomem3:
-	dput(d);
-enomem2:
-	iput(inode);
-enomem1:
-	ffs_data_put(ffs);
-enomem0:
+Enomem:
 	return -ENOMEM;
 }
 
@@ -1196,14 +1190,11 @@ ffs_fs_mount(struct file_system_type *t, int flags,
 static void
 ffs_fs_kill_sb(struct super_block *sb)
 {
-	void *ptr;
-
 	ENTER();
 
 	kill_litter_super(sb);
-	ptr = xchg(&sb->s_fs_info, NULL);
-	if (ptr)
-		ffs_data_put(ptr);
+	if (sb->s_fs_info)
+		ffs_data_put(sb->s_fs_info);
 }
 
 static struct file_system_type ffs_fs_type = {
@@ -1408,7 +1399,7 @@ static int ffs_epfiles_create(struct ffs_data *ffs)
 	ENTER();
 
 	count = ffs->eps_count;
-	epfiles = kzalloc(count * sizeof *epfiles, GFP_KERNEL);
+	epfiles = kcalloc(count, sizeof(*epfiles), GFP_KERNEL);
 	if (!epfiles)
 		return -ENOMEM;
 
diff --git a/drivers/usb/gadget/f_mass_storage.c b/drivers/usb/gadget/f_mass_storage.c
index 1a6f415c0d02..6353eca1e852 100644
--- a/drivers/usb/gadget/f_mass_storage.c
+++ b/drivers/usb/gadget/f_mass_storage.c
@@ -1873,17 +1873,14 @@ static int check_command(struct fsg_common *common, int cmnd_size,
 		    common->lun, lun);
 
 	/* Check the LUN */
-	if (common->lun < common->nluns) {
-		curlun = &common->luns[common->lun];
-		common->curlun = curlun;
+	curlun = common->curlun;
+	if (curlun) {
 		if (common->cmnd[0] != REQUEST_SENSE) {
 			curlun->sense_data = SS_NO_SENSE;
 			curlun->sense_data_info = 0;
 			curlun->info_valid = 0;
 		}
 	} else {
-		common->curlun = NULL;
-		curlun = NULL;
 		common->bad_lun_okay = 0;
 
 		/*
@@ -1929,6 +1926,17 @@ static int check_command(struct fsg_common *common, int cmnd_size,
 	return 0;
 }
 
+/* wrapper of check_command for data size in blocks handling */
+static int check_command_size_in_blocks(struct fsg_common *common,
+		int cmnd_size, enum data_direction data_dir,
+		unsigned int mask, int needs_medium, const char *name)
+{
+	if (common->curlun)
+		common->data_size_from_cmnd <<= common->curlun->blkbits;
+	return check_command(common, cmnd_size, data_dir,
+			mask, needs_medium, name);
+}
+
 static int do_scsi_command(struct fsg_common *common)
 {
 	struct fsg_buffhd	*bh;
@@ -2011,9 +2019,9 @@ static int do_scsi_command(struct fsg_common *common)
 
 	case READ_6:
 		i = common->cmnd[4];
-		common->data_size_from_cmnd = (i == 0 ? 256 : i) <<
-				common->curlun->blkbits;
-		reply = check_command(common, 6, DATA_DIR_TO_HOST,
+		common->data_size_from_cmnd = (i == 0) ? 256 : i;
+		reply = check_command_size_in_blocks(common, 6,
+				      DATA_DIR_TO_HOST,
 				      (7<<1) | (1<<4), 1,
 				      "READ(6)");
 		if (reply == 0)
@@ -2022,9 +2030,9 @@ static int do_scsi_command(struct fsg_common *common)
 
 	case READ_10:
 		common->data_size_from_cmnd =
-				get_unaligned_be16(&common->cmnd[7]) <<
-						common->curlun->blkbits;
-		reply = check_command(common, 10, DATA_DIR_TO_HOST,
+				get_unaligned_be16(&common->cmnd[7]);
+		reply = check_command_size_in_blocks(common, 10,
+				      DATA_DIR_TO_HOST,
 				      (1<<1) | (0xf<<2) | (3<<7), 1,
 				      "READ(10)");
 		if (reply == 0)
@@ -2033,9 +2041,9 @@ static int do_scsi_command(struct fsg_common *common)
 
 	case READ_12:
 		common->data_size_from_cmnd =
-				get_unaligned_be32(&common->cmnd[6]) <<
-						common->curlun->blkbits;
-		reply = check_command(common, 12, DATA_DIR_TO_HOST,
+				get_unaligned_be32(&common->cmnd[6]);
+		reply = check_command_size_in_blocks(common, 12,
+				      DATA_DIR_TO_HOST,
 				      (1<<1) | (0xf<<2) | (0xf<<6), 1,
 				      "READ(12)");
 		if (reply == 0)
@@ -2134,9 +2142,9 @@ static int do_scsi_command(struct fsg_common *common)
 
 	case WRITE_6:
 		i = common->cmnd[4];
-		common->data_size_from_cmnd = (i == 0 ? 256 : i) <<
-					common->curlun->blkbits;
-		reply = check_command(common, 6, DATA_DIR_FROM_HOST,
+		common->data_size_from_cmnd = (i == 0) ? 256 : i;
+		reply = check_command_size_in_blocks(common, 6,
+				      DATA_DIR_FROM_HOST,
 				      (7<<1) | (1<<4), 1,
 				      "WRITE(6)");
 		if (reply == 0)
@@ -2145,9 +2153,9 @@ static int do_scsi_command(struct fsg_common *common)
 
 	case WRITE_10:
 		common->data_size_from_cmnd =
-				get_unaligned_be16(&common->cmnd[7]) <<
-						common->curlun->blkbits;
-		reply = check_command(common, 10, DATA_DIR_FROM_HOST,
+				get_unaligned_be16(&common->cmnd[7]);
+		reply = check_command_size_in_blocks(common, 10,
+				      DATA_DIR_FROM_HOST,
 				      (1<<1) | (0xf<<2) | (3<<7), 1,
 				      "WRITE(10)");
 		if (reply == 0)
@@ -2156,9 +2164,9 @@ static int do_scsi_command(struct fsg_common *common)
 
 	case WRITE_12:
 		common->data_size_from_cmnd =
-				get_unaligned_be32(&common->cmnd[6]) <<
-						common->curlun->blkbits;
-		reply = check_command(common, 12, DATA_DIR_FROM_HOST,
+				get_unaligned_be32(&common->cmnd[6]);
+		reply = check_command_size_in_blocks(common, 12,
+				      DATA_DIR_FROM_HOST,
 				      (1<<1) | (0xf<<2) | (0xf<<6), 1,
 				      "WRITE(12)");
 		if (reply == 0)
@@ -2273,6 +2281,10 @@ static int received_cbw(struct fsg_dev *fsg, struct fsg_buffhd *bh)
 	if (common->data_size == 0)
 		common->data_dir = DATA_DIR_NONE;
 	common->lun = cbw->Lun;
+	if (common->lun >= 0 && common->lun < common->nluns)
+		common->curlun = &common->luns[common->lun];
+	else
+		common->curlun = NULL;
 	common->tag = cbw->Tag;
 	return 0;
 }
@@ -2763,7 +2775,7 @@ static struct fsg_common *fsg_common_init(struct fsg_common *common,
 	 * Create the LUNs, open their backing files, and register the
 	 * LUN devices in sysfs.
 	 */
-	curlun = kzalloc(nluns * sizeof *curlun, GFP_KERNEL);
+	curlun = kcalloc(nluns, sizeof(*curlun), GFP_KERNEL);
 	if (unlikely(!curlun)) {
 		rc = -ENOMEM;
 		goto error_release;
diff --git a/drivers/usb/gadget/file_storage.c b/drivers/usb/gadget/file_storage.c
index 11b5196284ae..e0f30fc70e45 100644
--- a/drivers/usb/gadget/file_storage.c
+++ b/drivers/usb/gadget/file_storage.c
@@ -2297,19 +2297,17 @@ static int check_command(struct fsg_dev *fsg, int cmnd_size,
 			DBG(fsg, "using LUN %d from CBW, "
 					"not LUN %d from CDB\n",
 					fsg->lun, lun);
-	} else
-		fsg->lun = lun;		// Use LUN from the command
+	}
 
 	/* Check the LUN */
-	if (fsg->lun < fsg->nluns) {
-		fsg->curlun = curlun = &fsg->luns[fsg->lun];
+	curlun = fsg->curlun;
+	if (curlun) {
 		if (fsg->cmnd[0] != REQUEST_SENSE) {
 			curlun->sense_data = SS_NO_SENSE;
 			curlun->sense_data_info = 0;
 			curlun->info_valid = 0;
 		}
 	} else {
-		fsg->curlun = curlun = NULL;
 		fsg->bad_lun_okay = 0;
 
 		/* INQUIRY and REQUEST SENSE commands are explicitly allowed
@@ -2351,6 +2349,16 @@ static int check_command(struct fsg_dev *fsg, int cmnd_size,
 	return 0;
 }
 
+/* wrapper of check_command for data size in blocks handling */
+static int check_command_size_in_blocks(struct fsg_dev *fsg, int cmnd_size,
+		enum data_direction data_dir, unsigned int mask,
+		int needs_medium, const char *name)
+{
+	if (fsg->curlun)
+		fsg->data_size_from_cmnd <<= fsg->curlun->blkbits;
+	return check_command(fsg, cmnd_size, data_dir,
+			mask, needs_medium, name);
+}
 
 static int do_scsi_command(struct fsg_dev *fsg)
 {
@@ -2425,26 +2433,27 @@ static int do_scsi_command(struct fsg_dev *fsg)
 
 	case READ_6:
 		i = fsg->cmnd[4];
-		fsg->data_size_from_cmnd = (i == 0 ? 256 : i) << fsg->curlun->blkbits;
-		if ((reply = check_command(fsg, 6, DATA_DIR_TO_HOST,
+		fsg->data_size_from_cmnd = (i == 0) ? 256 : i;
+		if ((reply = check_command_size_in_blocks(fsg, 6,
+				DATA_DIR_TO_HOST,
 				(7<<1) | (1<<4), 1,
 				"READ(6)")) == 0)
 			reply = do_read(fsg);
 		break;
 
 	case READ_10:
-		fsg->data_size_from_cmnd =
-				get_unaligned_be16(&fsg->cmnd[7]) << fsg->curlun->blkbits;
-		if ((reply = check_command(fsg, 10, DATA_DIR_TO_HOST,
+		fsg->data_size_from_cmnd = get_unaligned_be16(&fsg->cmnd[7]);
+		if ((reply = check_command_size_in_blocks(fsg, 10,
+				DATA_DIR_TO_HOST,
 				(1<<1) | (0xf<<2) | (3<<7), 1,
 				"READ(10)")) == 0)
 			reply = do_read(fsg);
 		break;
 
 	case READ_12:
-		fsg->data_size_from_cmnd =
-				get_unaligned_be32(&fsg->cmnd[6]) << fsg->curlun->blkbits;
-		if ((reply = check_command(fsg, 12, DATA_DIR_TO_HOST,
+		fsg->data_size_from_cmnd = get_unaligned_be32(&fsg->cmnd[6]);
+		if ((reply = check_command_size_in_blocks(fsg, 12,
+				DATA_DIR_TO_HOST,
 				(1<<1) | (0xf<<2) | (0xf<<6), 1,
 				"READ(12)")) == 0)
 			reply = do_read(fsg);
@@ -2529,26 +2538,27 @@ static int do_scsi_command(struct fsg_dev *fsg)
 
 	case WRITE_6:
 		i = fsg->cmnd[4];
-		fsg->data_size_from_cmnd = (i == 0 ? 256 : i) << fsg->curlun->blkbits;
-		if ((reply = check_command(fsg, 6, DATA_DIR_FROM_HOST,
+		fsg->data_size_from_cmnd = (i == 0) ? 256 : i;
+		if ((reply = check_command_size_in_blocks(fsg, 6,
+				DATA_DIR_FROM_HOST,
 				(7<<1) | (1<<4), 1,
 				"WRITE(6)")) == 0)
 			reply = do_write(fsg);
 		break;
 
 	case WRITE_10:
-		fsg->data_size_from_cmnd =
-				get_unaligned_be16(&fsg->cmnd[7]) << fsg->curlun->blkbits;
-		if ((reply = check_command(fsg, 10, DATA_DIR_FROM_HOST,
+		fsg->data_size_from_cmnd = get_unaligned_be16(&fsg->cmnd[7]);
+		if ((reply = check_command_size_in_blocks(fsg, 10,
+				DATA_DIR_FROM_HOST,
 				(1<<1) | (0xf<<2) | (3<<7), 1,
 				"WRITE(10)")) == 0)
 			reply = do_write(fsg);
 		break;
 
 	case WRITE_12:
-		fsg->data_size_from_cmnd =
-				get_unaligned_be32(&fsg->cmnd[6]) << fsg->curlun->blkbits;
-		if ((reply = check_command(fsg, 12, DATA_DIR_FROM_HOST,
+		fsg->data_size_from_cmnd = get_unaligned_be32(&fsg->cmnd[6]);
+		if ((reply = check_command_size_in_blocks(fsg, 12,
+				DATA_DIR_FROM_HOST,
 				(1<<1) | (0xf<<2) | (0xf<<6), 1,
 				"WRITE(12)")) == 0)
 			reply = do_write(fsg);
@@ -2715,7 +2725,17 @@ static int get_next_command(struct fsg_dev *fsg)
 		memcpy(fsg->cmnd, fsg->cbbuf_cmnd, fsg->cmnd_size);
 		fsg->cbbuf_cmnd_size = 0;
 		spin_unlock_irq(&fsg->lock);
+
+		/* Use LUN from the command */
+		fsg->lun = fsg->cmnd[1] >> 5;
 	}
+
+	/* Update current lun */
+	if (fsg->lun >= 0 && fsg->lun < fsg->nluns)
+		fsg->curlun = &fsg->luns[fsg->lun];
+	else
+		fsg->curlun = NULL;
+
 	return rc;
 }
 
@@ -3584,7 +3604,7 @@ static void fsg_resume(struct usb_gadget *gadget)
 /*-------------------------------------------------------------------------*/
 
 static struct usb_gadget_driver		fsg_driver = {
-	.speed		= USB_SPEED_SUPER,
+	.max_speed	= USB_SPEED_SUPER,
 	.function	= (char *) fsg_string_product,
 	.unbind		= fsg_unbind,
 	.disconnect	= fsg_disconnect,
diff --git a/drivers/usb/gadget/fsl_qe_udc.c b/drivers/usb/gadget/fsl_qe_udc.c
index e00cf92409ce..b95697c03d07 100644
--- a/drivers/usb/gadget/fsl_qe_udc.c
+++ b/drivers/usb/gadget/fsl_qe_udc.c
@@ -2336,7 +2336,7 @@ static int fsl_qe_start(struct usb_gadget_driver *driver,
 	if (!udc_controller)
 		return -ENODEV;
 
-	if (!driver || driver->speed < USB_SPEED_FULL
+	if (!driver || driver->max_speed < USB_SPEED_FULL
 			|| !bind || !driver->disconnect || !driver->setup)
 		return -EINVAL;
 
@@ -2350,7 +2350,7 @@ static int fsl_qe_start(struct usb_gadget_driver *driver,
 	/* hook up the driver */
 	udc_controller->driver = driver;
 	udc_controller->gadget.dev.driver = &driver->driver;
-	udc_controller->gadget.speed = (enum usb_device_speed)(driver->speed);
+	udc_controller->gadget.speed = driver->max_speed;
 	spin_unlock_irqrestore(&udc_controller->lock, flags);
 
 	retval = bind(&udc_controller->gadget);
@@ -2814,20 +2814,7 @@ static struct platform_driver udc_driver = {
 #endif
 };
 
-static int __init qe_udc_init(void)
-{
-	printk(KERN_INFO "%s: %s, %s\n", driver_name, driver_desc,
-			DRIVER_VERSION);
-	return platform_driver_register(&udc_driver);
-}
-
-static void __exit qe_udc_exit(void)
-{
-	platform_driver_unregister(&udc_driver);
-}
-
-module_init(qe_udc_init);
-module_exit(qe_udc_exit);
+module_platform_driver(udc_driver);
 
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_AUTHOR(DRIVER_AUTHOR);
diff --git a/drivers/usb/gadget/fsl_udc_core.c b/drivers/usb/gadget/fsl_udc_core.c
index dd28ef3def71..d7ea6c076ce9 100644
--- a/drivers/usb/gadget/fsl_udc_core.c
+++ b/drivers/usb/gadget/fsl_udc_core.c
@@ -1934,7 +1934,7 @@ static int fsl_start(struct usb_gadget_driver *driver,
 	if (!udc_controller)
 		return -ENODEV;
 
-	if (!driver || driver->speed < USB_SPEED_FULL
+	if (!driver || driver->max_speed < USB_SPEED_FULL
 			|| !bind || !driver->disconnect || !driver->setup)
 		return -EINVAL;
 
@@ -2525,7 +2525,7 @@ static int __init fsl_udc_probe(struct platform_device *pdev)
 
 	/* Setup gadget structure */
 	udc_controller->gadget.ops = &fsl_gadget_ops;
-	udc_controller->gadget.is_dualspeed = 1;
+	udc_controller->gadget.max_speed = USB_SPEED_HIGH;
 	udc_controller->gadget.ep0 = &udc_controller->eps[0].ep;
 	INIT_LIST_HEAD(&udc_controller->gadget.ep_list);
 	udc_controller->gadget.speed = USB_SPEED_UNKNOWN;
diff --git a/drivers/usb/gadget/fusb300_udc.c b/drivers/usb/gadget/fusb300_udc.c
index 74da206c8406..5831cb4a0b35 100644
--- a/drivers/usb/gadget/fusb300_udc.c
+++ b/drivers/usb/gadget/fusb300_udc.c
@@ -1317,7 +1317,7 @@ static int fusb300_udc_start(struct usb_gadget_driver *driver,
 	int retval;
 
 	if (!driver
-			|| driver->speed < USB_SPEED_FULL
+			|| driver->max_speed < USB_SPEED_FULL
 			|| !bind
 			|| !driver->setup)
 		return -EINVAL;
@@ -1463,7 +1463,7 @@ static int __init fusb300_probe(struct platform_device *pdev)
 
 	dev_set_name(&fusb300->gadget.dev, "gadget");
 
-	fusb300->gadget.is_dualspeed = 1;
+	fusb300->gadget.max_speed = USB_SPEED_HIGH;
 	fusb300->gadget.dev.parent = &pdev->dev;
 	fusb300->gadget.dev.dma_mask = pdev->dev.dma_mask;
 	fusb300->gadget.dev.release = pdev->dev.release;
diff --git a/drivers/usb/gadget/goku_udc.c b/drivers/usb/gadget/goku_udc.c
index 7f87805cddc4..5af70fcce139 100644
--- a/drivers/usb/gadget/goku_udc.c
+++ b/drivers/usb/gadget/goku_udc.c
@@ -1357,7 +1357,7 @@ static int goku_start(struct usb_gadget_driver *driver,
 	int			retval;
 
 	if (!driver
-			|| driver->speed < USB_SPEED_FULL
+			|| driver->max_speed < USB_SPEED_FULL
 			|| !bind
 			|| !driver->disconnect
 			|| !driver->setup)
@@ -1796,6 +1796,7 @@ static int goku_probe(struct pci_dev *pdev, const struct pci_device_id *id)
 	spin_lock_init(&dev->lock);
 	dev->pdev = pdev;
 	dev->gadget.ops = &goku_ops;
+	dev->gadget.max_speed = USB_SPEED_FULL;
 
 	/* the "gadget" abstracts/virtualizes the controller */
 	dev_set_name(&dev->gadget.dev, "gadget");
diff --git a/drivers/usb/gadget/imx_udc.c b/drivers/usb/gadget/imx_udc.c
index 2d978c0e7ced..8d1c75abd73d 100644
--- a/drivers/usb/gadget/imx_udc.c
+++ b/drivers/usb/gadget/imx_udc.c
@@ -1336,7 +1336,7 @@ static int imx_udc_start(struct usb_gadget_driver *driver,
 	int retval;
 
 	if (!driver
-		|| driver->speed < USB_SPEED_FULL
+		|| driver->max_speed < USB_SPEED_FULL
 		|| !bind
 		|| !driver->disconnect
 		|| !driver->setup)
diff --git a/drivers/usb/gadget/inode.c b/drivers/usb/gadget/inode.c
index 6ccae2707e59..ae04266dba1b 100644
--- a/drivers/usb/gadget/inode.c
+++ b/drivers/usb/gadget/inode.c
@@ -1766,9 +1766,9 @@ gadgetfs_suspend (struct usb_gadget *gadget)
 
 static struct usb_gadget_driver gadgetfs_driver = {
 #ifdef	CONFIG_USB_GADGET_DUALSPEED
-	.speed		= USB_SPEED_HIGH,
+	.max_speed	= USB_SPEED_HIGH,
 #else
-	.speed		= USB_SPEED_FULL,
+	.max_speed	= USB_SPEED_FULL,
 #endif
 	.function	= (char *) driver_desc,
 	.unbind		= gadgetfs_unbind,
@@ -1792,7 +1792,7 @@ static int gadgetfs_probe (struct usb_gadget *gadget)
 }
 
 static struct usb_gadget_driver probe_driver = {
-	.speed		= USB_SPEED_HIGH,
+	.max_speed	= USB_SPEED_HIGH,
 	.unbind		= gadgetfs_nop,
 	.setup		= (void *)gadgetfs_nop,
 	.disconnect	= gadgetfs_nop,
@@ -2035,7 +2035,6 @@ static int
 gadgetfs_fill_super (struct super_block *sb, void *opts, int silent)
 {
 	struct inode	*inode;
-	struct dentry	*d;
 	struct dev_data	*dev;
 
 	if (the_device)
@@ -2058,24 +2057,27 @@ gadgetfs_fill_super (struct super_block *sb, void *opts, int silent)
 			NULL, &simple_dir_operations,
 			S_IFDIR | S_IRUGO | S_IXUGO);
 	if (!inode)
-		goto enomem0;
+		goto Enomem;
 	inode->i_op = &simple_dir_inode_operations;
-	if (!(d = d_alloc_root (inode)))
-		goto enomem1;
-	sb->s_root = d;
+	if (!(sb->s_root = d_alloc_root (inode))) {
+		iput(inode);
+		goto Enomem;
+	}
 
 	/* the ep0 file is named after the controller we expect;
 	 * user mode code can use it for sanity checks, like we do.
 	 */
 	dev = dev_new ();
 	if (!dev)
-		goto enomem2;
+		goto Enomem;
 
 	dev->sb = sb;
 	if (!gadgetfs_create_file (sb, CHIP,
 				dev, &dev_init_operations,
-				&dev->dentry))
-		goto enomem3;
+				&dev->dentry)) {
+		put_dev(dev);
+		goto Enomem;
+	}
 
 	/* other endpoint files are available after hardware setup,
 	 * from binding to a controller.
@@ -2083,13 +2085,7 @@ gadgetfs_fill_super (struct super_block *sb, void *opts, int silent)
 	the_device = dev;
 	return 0;
 
-enomem3:
-	put_dev (dev);
-enomem2:
-	dput (d);
-enomem1:
-	iput (inode);
-enomem0:
+Enomem:
 	return -ENOMEM;
 }
 
diff --git a/drivers/usb/gadget/langwell_udc.c b/drivers/usb/gadget/langwell_udc.c
index c9fa3bf5b377..fa0fcc11263f 100644
--- a/drivers/usb/gadget/langwell_udc.c
+++ b/drivers/usb/gadget/langwell_udc.c
@@ -3267,7 +3267,7 @@ static int langwell_udc_probe(struct pci_dev *pdev,
 	dev->gadget.ep0 = &dev->ep[0].ep;	/* gadget ep0 */
 	INIT_LIST_HEAD(&dev->gadget.ep_list);	/* ep_list */
 	dev->gadget.speed = USB_SPEED_UNKNOWN;	/* speed */
-	dev->gadget.is_dualspeed = 1;		/* support dual speed */
+	dev->gadget.max_speed = USB_SPEED_HIGH;	/* support dual speed */
 #ifdef	OTG_TRANSCEIVER
 	dev->gadget.is_otg = 1;			/* support otg mode */
 #endif
diff --git a/drivers/usb/gadget/m66592-udc.c b/drivers/usb/gadget/m66592-udc.c
index 9aa1cbbee45b..3608b3bd5732 100644
--- a/drivers/usb/gadget/m66592-udc.c
+++ b/drivers/usb/gadget/m66592-udc.c
@@ -1472,7 +1472,7 @@ static int m66592_start(struct usb_gadget_driver *driver,
 	int retval;
 
 	if (!driver
-			|| driver->speed < USB_SPEED_HIGH
+			|| driver->max_speed < USB_SPEED_HIGH
 			|| !bind
 			|| !driver->setup)
 		return -EINVAL;
@@ -1653,7 +1653,7 @@ static int __init m66592_probe(struct platform_device *pdev)
 	m66592->gadget.ops = &m66592_gadget_ops;
 	device_initialize(&m66592->gadget.dev);
 	dev_set_name(&m66592->gadget.dev, "gadget");
-	m66592->gadget.is_dualspeed = 1;
+	m66592->gadget.max_speed = USB_SPEED_HIGH;
 	m66592->gadget.dev.parent = &pdev->dev;
 	m66592->gadget.dev.dma_mask = pdev->dev.dma_mask;
 	m66592->gadget.dev.release = pdev->dev.release;
diff --git a/drivers/usb/gadget/mv_udc.h b/drivers/usb/gadget/mv_udc.h
index daa75c12f336..34aadfae723d 100644
--- a/drivers/usb/gadget/mv_udc.h
+++ b/drivers/usb/gadget/mv_udc.h
@@ -180,7 +180,7 @@ struct mv_udc {
 
 	struct mv_cap_regs __iomem	*cap_regs;
 	struct mv_op_regs __iomem	*op_regs;
-	unsigned int			phy_regs;
+	void __iomem                    *phy_regs;
 	unsigned int			max_eps;
 	struct mv_dqh			*ep_dqh;
 	size_t				ep_dqh_size;
@@ -211,11 +211,14 @@ struct mv_udc {
 				softconnected:1,
 				force_fs:1,
 				clock_gating:1,
-				active:1;
+				active:1,
+				stopped:1;      /* stop bit is setted */
 
 	struct work_struct	vbus_work;
 	struct workqueue_struct *qwork;
 
+	struct otg_transceiver	*transceiver;
+
 	struct mv_usb_platform_data     *pdata;
 
 	/* some SOC has mutiple clock sources for USB*/
diff --git a/drivers/usb/gadget/mv_udc_core.c b/drivers/usb/gadget/mv_udc_core.c
index 892412103dd8..f97e737d26f7 100644
--- a/drivers/usb/gadget/mv_udc_core.c
+++ b/drivers/usb/gadget/mv_udc_core.c
@@ -276,11 +276,12 @@ static void done(struct mv_ep *ep, struct mv_req *req, int status)
 
 static int queue_dtd(struct mv_ep *ep, struct mv_req *req)
 {
-	u32 tmp, epstatus, bit_pos, direction;
 	struct mv_udc *udc;
 	struct mv_dqh *dqh;
+	u32 bit_pos, direction;
+	u32 usbcmd, epstatus;
 	unsigned int loops;
-	int readsafe, retval = 0;
+	int retval = 0;
 
 	udc = ep->udc;
 	direction = ep_dir(ep);
@@ -293,30 +294,18 @@ static int queue_dtd(struct mv_ep *ep, struct mv_req *req)
 		lastreq = list_entry(ep->queue.prev, struct mv_req, queue);
 		lastreq->tail->dtd_next =
 			req->head->td_dma & EP_QUEUE_HEAD_NEXT_POINTER_MASK;
-		if (readl(&udc->op_regs->epprime) & bit_pos) {
-			loops = LOOPS(PRIME_TIMEOUT);
-			while (readl(&udc->op_regs->epprime) & bit_pos) {
-				if (loops == 0) {
-					retval = -ETIME;
-					goto done;
-				}
-				udelay(LOOPS_USEC);
-				loops--;
-			}
-			if (readl(&udc->op_regs->epstatus) & bit_pos)
-				goto done;
-		}
-		readsafe = 0;
+
+		wmb();
+
+		if (readl(&udc->op_regs->epprime) & bit_pos)
+			goto done;
+
 		loops = LOOPS(READSAFE_TIMEOUT);
-		while (readsafe == 0) {
-			if (loops == 0) {
-				retval = -ETIME;
-				goto done;
-			}
+		while (1) {
 			/* start with setting the semaphores */
-			tmp = readl(&udc->op_regs->usbcmd);
-			tmp |= USBCMD_ATDTW_TRIPWIRE_SET;
-			writel(tmp, &udc->op_regs->usbcmd);
+			usbcmd = readl(&udc->op_regs->usbcmd);
+			usbcmd |= USBCMD_ATDTW_TRIPWIRE_SET;
+			writel(usbcmd, &udc->op_regs->usbcmd);
 
 			/* read the endpoint status */
 			epstatus = readl(&udc->op_regs->epstatus) & bit_pos;
@@ -329,98 +318,46 @@ static int queue_dtd(struct mv_ep *ep, struct mv_req *req)
 			 * primed.
 			 */
 			if (readl(&udc->op_regs->usbcmd)
-				& USBCMD_ATDTW_TRIPWIRE_SET) {
-				readsafe = 1;
-			}
+				& USBCMD_ATDTW_TRIPWIRE_SET)
+				break;
+
 			loops--;
+			if (loops == 0) {
+				dev_err(&udc->dev->dev,
+					"Timeout for ATDTW_TRIPWIRE...\n");
+				retval = -ETIME;
+				goto done;
+			}
 			udelay(LOOPS_USEC);
 		}
 
 		/* Clear the semaphore */
-		tmp = readl(&udc->op_regs->usbcmd);
-		tmp &= USBCMD_ATDTW_TRIPWIRE_CLEAR;
-		writel(tmp, &udc->op_regs->usbcmd);
-
-		/* If endpoint is not active, we activate it now. */
-		if (!epstatus) {
-			if (direction == EP_DIR_IN) {
-				struct mv_dtd *curr_dtd = dma_to_virt(
-					&udc->dev->dev, dqh->curr_dtd_ptr);
-
-				loops = LOOPS(DTD_TIMEOUT);
-				while (curr_dtd->size_ioc_sts
-					& DTD_STATUS_ACTIVE) {
-					if (loops == 0) {
-						retval = -ETIME;
-						goto done;
-					}
-					loops--;
-					udelay(LOOPS_USEC);
-				}
-			}
-			/* No other transfers on the queue */
+		usbcmd = readl(&udc->op_regs->usbcmd);
+		usbcmd &= USBCMD_ATDTW_TRIPWIRE_CLEAR;
+		writel(usbcmd, &udc->op_regs->usbcmd);
 
-			/* Write dQH next pointer and terminate bit to 0 */
-			dqh->next_dtd_ptr = req->head->td_dma
-				& EP_QUEUE_HEAD_NEXT_POINTER_MASK;
-			dqh->size_ioc_int_sts = 0;
+		if (epstatus)
+			goto done;
+	}
 
-			/*
-			 * Ensure that updates to the QH will
-			 * occur before priming.
-			 */
-			wmb();
+	/* Write dQH next pointer and terminate bit to 0 */
+	dqh->next_dtd_ptr = req->head->td_dma
+				& EP_QUEUE_HEAD_NEXT_POINTER_MASK;
 
-			/* Prime the Endpoint */
-			writel(bit_pos, &udc->op_regs->epprime);
-		}
-	} else {
-		/* Write dQH next pointer and terminate bit to 0 */
-		dqh->next_dtd_ptr = req->head->td_dma
-			& EP_QUEUE_HEAD_NEXT_POINTER_MASK;
-		dqh->size_ioc_int_sts = 0;
+	/* clear active and halt bit, in case set from a previous error */
+	dqh->size_ioc_int_sts &= ~(DTD_STATUS_ACTIVE | DTD_STATUS_HALTED);
 
-		/* Ensure that updates to the QH will occur before priming. */
-		wmb();
+	/* Ensure that updates to the QH will occure before priming. */
+	wmb();
 
-		/* Prime the Endpoint */
-		writel(bit_pos, &udc->op_regs->epprime);
+	/* Prime the Endpoint */
+	writel(bit_pos, &udc->op_regs->epprime);
 
-		if (direction == EP_DIR_IN) {
-			/* FIXME add status check after prime the IN ep */
-			int prime_again;
-			u32 curr_dtd_ptr = dqh->curr_dtd_ptr;
-
-			loops = LOOPS(DTD_TIMEOUT);
-			prime_again = 0;
-			while ((curr_dtd_ptr != req->head->td_dma)) {
-				curr_dtd_ptr = dqh->curr_dtd_ptr;
-				if (loops == 0) {
-					dev_err(&udc->dev->dev,
-						"failed to prime %s\n",
-						ep->name);
-					retval = -ETIME;
-					goto done;
-				}
-				loops--;
-				udelay(LOOPS_USEC);
-
-				if (loops == (LOOPS(DTD_TIMEOUT) >> 2)) {
-					if (prime_again)
-						goto done;
-					dev_info(&udc->dev->dev,
-						"prime again\n");
-					writel(bit_pos,
-						&udc->op_regs->epprime);
-					prime_again = 1;
-				}
-			}
-		}
-	}
 done:
 	return retval;
 }
 
+
 static struct mv_dtd *build_dtd(struct mv_req *req, unsigned *length,
 		dma_addr_t *dma, int *is_last)
 {
@@ -841,6 +778,27 @@ mv_ep_queue(struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags)
 	return 0;
 }
 
+static void mv_prime_ep(struct mv_ep *ep, struct mv_req *req)
+{
+	struct mv_dqh *dqh = ep->dqh;
+	u32 bit_pos;
+
+	/* Write dQH next pointer and terminate bit to 0 */
+	dqh->next_dtd_ptr = req->head->td_dma
+		& EP_QUEUE_HEAD_NEXT_POINTER_MASK;
+
+	/* clear active and halt bit, in case set from a previous error */
+	dqh->size_ioc_int_sts &= ~(DTD_STATUS_ACTIVE | DTD_STATUS_HALTED);
+
+	/* Ensure that updates to the QH will occure before priming. */
+	wmb();
+
+	bit_pos = 1 << (((ep_dir(ep) == EP_DIR_OUT) ? 0 : 16) + ep->ep_num);
+
+	/* Prime the Endpoint */
+	writel(bit_pos, &ep->udc->op_regs->epprime);
+}
+
 /* dequeues (cancels, unlinks) an I/O request from an endpoint */
 static int mv_ep_dequeue(struct usb_ep *_ep, struct usb_request *_req)
 {
@@ -883,15 +841,13 @@ static int mv_ep_dequeue(struct usb_ep *_ep, struct usb_request *_req)
 
 		/* The request isn't the last request in this ep queue */
 		if (req->queue.next != &ep->queue) {
-			struct mv_dqh *qh;
 			struct mv_req *next_req;
 
-			qh = ep->dqh;
-			next_req = list_entry(req->queue.next, struct mv_req,
-					queue);
+			next_req = list_entry(req->queue.next,
+				struct mv_req, queue);
 
 			/* Point the QH to the first TD of next request */
-			writel((u32) next_req->head, &qh->curr_dtd_ptr);
+			mv_prime_ep(ep, next_req);
 		} else {
 			struct mv_dqh *qh;
 
@@ -1056,6 +1012,8 @@ static void udc_stop(struct mv_udc *udc)
 		USBINTR_PORT_CHANGE_DETECT_EN | USBINTR_RESET_EN);
 	writel(tmp, &udc->op_regs->usbintr);
 
+	udc->stopped = 1;
+
 	/* Reset the Run the bit in the command register to stop VUSB */
 	tmp = readl(&udc->op_regs->usbcmd);
 	tmp &= ~USBCMD_RUN_STOP;
@@ -1072,6 +1030,8 @@ static void udc_start(struct mv_udc *udc)
 	/* Enable interrupts */
 	writel(usbintr, &udc->op_regs->usbintr);
 
+	udc->stopped = 0;
+
 	/* Set the Run bit in the command register */
 	writel(USBCMD_RUN_STOP, &udc->op_regs->usbcmd);
 }
@@ -1134,11 +1094,11 @@ static int udc_reset(struct mv_udc *udc)
 	return 0;
 }
 
-static int mv_udc_enable(struct mv_udc *udc)
+static int mv_udc_enable_internal(struct mv_udc *udc)
 {
 	int retval;
 
-	if (udc->clock_gating == 0 || udc->active)
+	if (udc->active)
 		return 0;
 
 	dev_dbg(&udc->dev->dev, "enable udc\n");
@@ -1157,9 +1117,17 @@ static int mv_udc_enable(struct mv_udc *udc)
 	return 0;
 }
 
-static void mv_udc_disable(struct mv_udc *udc)
+static int mv_udc_enable(struct mv_udc *udc)
 {
-	if (udc->clock_gating && udc->active) {
+	if (udc->clock_gating)
+		return mv_udc_enable_internal(udc);
+
+	return 0;
+}
+
+static void mv_udc_disable_internal(struct mv_udc *udc)
+{
+	if (udc->active) {
 		dev_dbg(&udc->dev->dev, "disable udc\n");
 		if (udc->pdata->phy_deinit)
 			udc->pdata->phy_deinit(udc->phy_regs);
@@ -1168,6 +1136,12 @@ static void mv_udc_disable(struct mv_udc *udc)
 	}
 }
 
+static void mv_udc_disable(struct mv_udc *udc)
+{
+	if (udc->clock_gating)
+		mv_udc_disable_internal(udc);
+}
+
 static int mv_udc_get_frame(struct usb_gadget *gadget)
 {
 	struct mv_udc *udc;
@@ -1178,7 +1152,7 @@ static int mv_udc_get_frame(struct usb_gadget *gadget)
 
 	udc = container_of(gadget, struct mv_udc, gadget);
 
-	retval = readl(udc->op_regs->frindex) & USB_FRINDEX_MASKS;
+	retval = readl(&udc->op_regs->frindex) & USB_FRINDEX_MASKS;
 
 	return retval;
 }
@@ -1212,10 +1186,11 @@ static int mv_udc_vbus_session(struct usb_gadget *gadget, int is_active)
 	udc = container_of(gadget, struct mv_udc, gadget);
 	spin_lock_irqsave(&udc->lock, flags);
 
+	udc->vbus_active = (is_active != 0);
+
 	dev_dbg(&udc->dev->dev, "%s: softconnect %d, vbus_active %d\n",
 		__func__, udc->softconnect, udc->vbus_active);
 
-	udc->vbus_active = (is_active != 0);
 	if (udc->driver && udc->softconnect && udc->vbus_active) {
 		retval = mv_udc_enable(udc);
 		if (retval == 0) {
@@ -1244,10 +1219,11 @@ static int mv_udc_pullup(struct usb_gadget *gadget, int is_on)
 	udc = container_of(gadget, struct mv_udc, gadget);
 	spin_lock_irqsave(&udc->lock, flags);
 
+	udc->softconnect = (is_on != 0);
+
 	dev_dbg(&udc->dev->dev, "%s: softconnect %d, vbus_active %d\n",
 			__func__, udc->softconnect, udc->vbus_active);
 
-	udc->softconnect = (is_on != 0);
 	if (udc->driver && udc->softconnect && udc->vbus_active) {
 		retval = mv_udc_enable(udc);
 		if (retval == 0) {
@@ -1407,6 +1383,20 @@ static int mv_udc_start(struct usb_gadget_driver *driver,
 		return retval;
 	}
 
+	if (udc->transceiver) {
+		retval = otg_set_peripheral(udc->transceiver, &udc->gadget);
+		if (retval) {
+			dev_err(&udc->dev->dev,
+				"unable to register peripheral to otg\n");
+			if (driver->unbind) {
+				driver->unbind(&udc->gadget);
+				udc->gadget.dev.driver = NULL;
+				udc->driver = NULL;
+			}
+			return retval;
+		}
+	}
+
 	/* pullup is always on */
 	mv_udc_pullup(&udc->gadget, 1);
 
@@ -2026,6 +2016,10 @@ static irqreturn_t mv_udc_irq(int irq, void *dev)
 	struct mv_udc *udc = (struct mv_udc *)dev;
 	u32 status, intr;
 
+	/* Disable ISR when stopped bit is set */
+	if (udc->stopped)
+		return IRQ_NONE;
+
 	spin_lock(&udc->lock);
 
 	status = readl(&udc->op_regs->usbsts);
@@ -2109,7 +2103,12 @@ static int __devexit mv_udc_remove(struct platform_device *dev)
 		destroy_workqueue(udc->qwork);
 	}
 
-	if (udc->pdata && udc->pdata->vbus && udc->clock_gating)
+	/*
+	 * If we have transceiver inited,
+	 * then vbus irq will not be requested in udc driver.
+	 */
+	if (udc->pdata && udc->pdata->vbus
+		&& udc->clock_gating && udc->transceiver == NULL)
 		free_irq(udc->pdata->vbus->irq, &dev->dev);
 
 	/* free memory allocated in probe */
@@ -2129,11 +2128,9 @@ static int __devexit mv_udc_remove(struct platform_device *dev)
 
 	if (udc->cap_regs)
 		iounmap(udc->cap_regs);
-	udc->cap_regs = NULL;
 
 	if (udc->phy_regs)
-		iounmap((void *)udc->phy_regs);
-	udc->phy_regs = 0;
+		iounmap(udc->phy_regs);
 
 	if (udc->status_req) {
 		kfree(udc->status_req->req.buf);
@@ -2182,6 +2179,11 @@ static int __devinit mv_udc_probe(struct platform_device *dev)
 
 	udc->dev = dev;
 
+#ifdef CONFIG_USB_OTG_UTILS
+	if (pdata->mode == MV_USB_MODE_OTG)
+		udc->transceiver = otg_get_transceiver();
+#endif
+
 	udc->clknum = pdata->clknum;
 	for (clk_i = 0; clk_i < udc->clknum; clk_i++) {
 		udc->clk[clk_i] = clk_get(&dev->dev, pdata->clkname[clk_i]);
@@ -2213,24 +2215,20 @@ static int __devinit mv_udc_probe(struct platform_device *dev)
 		goto err_iounmap_capreg;
 	}
 
-	udc->phy_regs = (unsigned int)ioremap(r->start, resource_size(r));
-	if (udc->phy_regs == 0) {
+	udc->phy_regs = ioremap(r->start, resource_size(r));
+	if (udc->phy_regs == NULL) {
 		dev_err(&dev->dev, "failed to map phy I/O memory\n");
 		retval = -EBUSY;
 		goto err_iounmap_capreg;
 	}
 
 	/* we will acces controller register, so enable the clk */
-	udc_clock_enable(udc);
-	if (pdata->phy_init) {
-		retval = pdata->phy_init(udc->phy_regs);
-		if (retval) {
-			dev_err(&dev->dev, "phy init error %d\n", retval);
-			goto err_iounmap_phyreg;
-		}
-	}
+	retval = mv_udc_enable_internal(udc);
+	if (retval)
+		goto err_iounmap_phyreg;
 
-	udc->op_regs = (struct mv_op_regs __iomem *)((u32)udc->cap_regs
+	udc->op_regs =
+		(struct mv_op_regs __iomem *)((unsigned long)udc->cap_regs
 		+ (readl(&udc->cap_regs->caplength_hciversion)
 			& CAPLENGTH_MASK));
 	udc->max_eps = readl(&udc->cap_regs->dccparams) & DCCPARAMS_DEN_MASK;
@@ -2312,7 +2310,7 @@ static int __devinit mv_udc_probe(struct platform_device *dev)
 	udc->gadget.ep0 = &udc->eps[0].ep;	/* gadget ep0 */
 	INIT_LIST_HEAD(&udc->gadget.ep_list);	/* ep_list */
 	udc->gadget.speed = USB_SPEED_UNKNOWN;	/* speed */
-	udc->gadget.is_dualspeed = 1;		/* support dual speed */
+	udc->gadget.max_speed = USB_SPEED_HIGH;	/* support dual speed */
 
 	/* the "gadget" abstracts/virtualizes the controller */
 	dev_set_name(&udc->gadget.dev, "gadget");
@@ -2328,7 +2326,9 @@ static int __devinit mv_udc_probe(struct platform_device *dev)
 	eps_init(udc);
 
 	/* VBUS detect: we can disable/enable clock on demand.*/
-	if (pdata->vbus) {
+	if (udc->transceiver)
+		udc->clock_gating = 1;
+	else if (pdata->vbus) {
 		udc->clock_gating = 1;
 		retval = request_threaded_irq(pdata->vbus->irq, NULL,
 				mv_udc_vbus_irq, IRQF_ONESHOT, "vbus", udc);
@@ -2354,11 +2354,9 @@ static int __devinit mv_udc_probe(struct platform_device *dev)
 	 * If not, it means that VBUS detection is not supported, we
 	 * have to enable vbus active all the time to let controller work.
 	 */
-	if (udc->clock_gating) {
-		if (udc->pdata->phy_deinit)
-			udc->pdata->phy_deinit(udc->phy_regs);
-		udc_clock_disable(udc);
-	} else
+	if (udc->clock_gating)
+		mv_udc_disable_internal(udc);
+	else
 		udc->vbus_active = 1;
 
 	retval = usb_add_gadget_udc(&dev->dev, &udc->gadget);
@@ -2371,7 +2369,8 @@ static int __devinit mv_udc_probe(struct platform_device *dev)
 	return 0;
 
 err_unregister:
-	if (udc->pdata && udc->pdata->vbus && udc->clock_gating)
+	if (udc->pdata && udc->pdata->vbus
+		&& udc->clock_gating && udc->transceiver == NULL)
 		free_irq(pdata->vbus->irq, &dev->dev);
 	device_unregister(&udc->gadget.dev);
 err_free_irq:
@@ -2387,11 +2386,9 @@ err_free_dma:
 	dma_free_coherent(&dev->dev, udc->ep_dqh_size,
 			udc->ep_dqh, udc->ep_dqh_dma);
 err_disable_clock:
-	if (udc->pdata->phy_deinit)
-		udc->pdata->phy_deinit(udc->phy_regs);
-	udc_clock_disable(udc);
+	mv_udc_disable_internal(udc);
 err_iounmap_phyreg:
-	iounmap((void *)udc->phy_regs);
+	iounmap(udc->phy_regs);
 err_iounmap_capreg:
 	iounmap(udc->cap_regs);
 err_put_clk:
@@ -2407,7 +2404,30 @@ static int mv_udc_suspend(struct device *_dev)
 {
 	struct mv_udc *udc = the_controller;
 
-	udc_stop(udc);
+	/* if OTG is enabled, the following will be done in OTG driver*/
+	if (udc->transceiver)
+		return 0;
+
+	if (udc->pdata->vbus && udc->pdata->vbus->poll)
+		if (udc->pdata->vbus->poll() == VBUS_HIGH) {
+			dev_info(&udc->dev->dev, "USB cable is connected!\n");
+			return -EAGAIN;
+		}
+
+	/*
+	 * only cable is unplugged, udc can suspend.
+	 * So do not care about clock_gating == 1.
+	 */
+	if (!udc->clock_gating) {
+		udc_stop(udc);
+
+		spin_lock_irq(&udc->lock);
+		/* stop all usb activities */
+		stop_activity(udc, udc->driver);
+		spin_unlock_irq(&udc->lock);
+
+		mv_udc_disable_internal(udc);
+	}
 
 	return 0;
 }
@@ -2417,20 +2437,22 @@ static int mv_udc_resume(struct device *_dev)
 	struct mv_udc *udc = the_controller;
 	int retval;
 
-	if (udc->pdata->phy_init) {
-		retval = udc->pdata->phy_init(udc->phy_regs);
-		if (retval) {
-			dev_err(&udc->dev->dev,
-				"init phy error %d when resume back\n",
-				retval);
+	/* if OTG is enabled, the following will be done in OTG driver*/
+	if (udc->transceiver)
+		return 0;
+
+	if (!udc->clock_gating) {
+		retval = mv_udc_enable_internal(udc);
+		if (retval)
 			return retval;
+
+		if (udc->driver && udc->softconnect) {
+			udc_reset(udc);
+			ep0_reset(udc);
+			udc_start(udc);
 		}
 	}
 
-	udc_reset(udc);
-	ep0_reset(udc);
-	udc_start(udc);
-
 	return 0;
 }
 
@@ -2457,30 +2479,16 @@ static struct platform_driver udc_driver = {
 	.shutdown	= mv_udc_shutdown,
 	.driver		= {
 		.owner	= THIS_MODULE,
-		.name	= "pxa-u2o",
+		.name	= "mv-udc",
 #ifdef CONFIG_PM
 		.pm	= &mv_udc_pm_ops,
 #endif
 	},
 };
-MODULE_ALIAS("platform:pxa-u2o");
 
+module_platform_driver(udc_driver);
+MODULE_ALIAS("platform:mv-udc");
 MODULE_DESCRIPTION(DRIVER_DESC);
 MODULE_AUTHOR("Chao Xie <chao.xie@marvell.com>");
 MODULE_VERSION(DRIVER_VERSION);
 MODULE_LICENSE("GPL");
-
-
-static int __init init(void)
-{
-	return platform_driver_register(&udc_driver);
-}
-module_init(init);
-
-
-static void __exit cleanup(void)
-{
-	platform_driver_unregister(&udc_driver);
-}
-module_exit(cleanup);
-
diff --git a/drivers/usb/gadget/net2272.c b/drivers/usb/gadget/net2272.c
index d1b76368472f..4c81d540bc26 100644
--- a/drivers/usb/gadget/net2272.c
+++ b/drivers/usb/gadget/net2272.c
@@ -1459,7 +1459,7 @@ static int net2272_start(struct usb_gadget *_gadget,
 	unsigned i;
 
 	if (!driver || !driver->unbind || !driver->setup ||
-	    driver->speed != USB_SPEED_HIGH)
+	    driver->max_speed != USB_SPEED_HIGH)
 		return -EINVAL;
 
 	dev = container_of(_gadget, struct net2272, gadget);
@@ -2235,7 +2235,7 @@ net2272_probe_init(struct device *dev, unsigned int irq)
 	ret->irq = irq;
 	ret->dev = dev;
 	ret->gadget.ops = &net2272_ops;
-	ret->gadget.is_dualspeed = 1;
+	ret->gadget.max_speed = USB_SPEED_HIGH;
 
 	/* the "gadget" abstracts/virtualizes the controller */
 	dev_set_name(&ret->gadget.dev, "gadget");
diff --git a/drivers/usb/gadget/net2280.c b/drivers/usb/gadget/net2280.c
index da2b9d0be3ca..cf1f36454d08 100644
--- a/drivers/usb/gadget/net2280.c
+++ b/drivers/usb/gadget/net2280.c
@@ -1881,7 +1881,7 @@ static int net2280_start(struct usb_gadget *_gadget,
 	 * (dev->usb->xcvrdiag & FORCE_FULL_SPEED_MODE)
 	 * "must not be used in normal operation"
 	 */
-	if (!driver || driver->speed < USB_SPEED_HIGH
+	if (!driver || driver->max_speed < USB_SPEED_HIGH
 			|| !driver->setup)
 		return -EINVAL;
 
@@ -2698,7 +2698,7 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id)
 	spin_lock_init (&dev->lock);
 	dev->pdev = pdev;
 	dev->gadget.ops = &net2280_ops;
-	dev->gadget.is_dualspeed = 1;
+	dev->gadget.max_speed = USB_SPEED_HIGH;
 
 	/* the "gadget" abstracts/virtualizes the controller */
 	dev_set_name(&dev->gadget.dev, "gadget");
diff --git a/drivers/usb/gadget/omap_udc.c b/drivers/usb/gadget/omap_udc.c
index 788989a10223..7db5bbe6251b 100644
--- a/drivers/usb/gadget/omap_udc.c
+++ b/drivers/usb/gadget/omap_udc.c
@@ -2110,7 +2110,7 @@ static int omap_udc_start(struct usb_gadget_driver *driver,
 		return -ENODEV;
 	if (!driver
 			// FIXME if otg, check:  driver->is_otg
-			|| driver->speed < USB_SPEED_FULL
+			|| driver->max_speed < USB_SPEED_FULL
 			|| !bind || !driver->setup)
 		return -EINVAL;
 
@@ -2676,6 +2676,7 @@ omap_udc_setup(struct platform_device *odev, struct otg_transceiver *xceiv)
 	INIT_LIST_HEAD(&udc->gadget.ep_list);
 	INIT_LIST_HEAD(&udc->iso);
 	udc->gadget.speed = USB_SPEED_UNKNOWN;
+	udc->gadget.max_speed = USB_SPEED_FULL;
 	udc->gadget.name = driver_name;
 
 	device_initialize(&udc->gadget.dev);
diff --git a/drivers/usb/gadget/pch_udc.c b/drivers/usb/gadget/pch_udc.c
index 5048a0c07640..dd2313cce1d3 100644
--- a/drivers/usb/gadget/pch_udc.c
+++ b/drivers/usb/gadget/pch_udc.c
@@ -2693,7 +2693,7 @@ static int pch_udc_start(struct usb_gadget_driver *driver,
 	struct pch_udc_dev	*dev = pch_udc;
 	int			retval;
 
-	if (!driver || (driver->speed == USB_SPEED_UNKNOWN) || !bind ||
+	if (!driver || (driver->max_speed == USB_SPEED_UNKNOWN) || !bind ||
 	    !driver->setup || !driver->unbind || !driver->disconnect) {
 		dev_err(&dev->pdev->dev,
 			"%s: invalid driver parameter\n", __func__);
@@ -2941,7 +2941,7 @@ static int pch_udc_probe(struct pci_dev *pdev,
 	dev->gadget.dev.dma_mask = pdev->dev.dma_mask;
 	dev->gadget.dev.release = gadget_release;
 	dev->gadget.name = KBUILD_MODNAME;
-	dev->gadget.is_dualspeed = 1;
+	dev->gadget.max_speed = USB_SPEED_HIGH;
 
 	retval = device_register(&dev->gadget.dev);
 	if (retval)
diff --git a/drivers/usb/gadget/printer.c b/drivers/usb/gadget/printer.c
index 65a8834f274b..d83134b0f78a 100644
--- a/drivers/usb/gadget/printer.c
+++ b/drivers/usb/gadget/printer.c
@@ -1141,7 +1141,7 @@ printer_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
 				break;
 #ifdef CONFIG_USB_GADGET_DUALSPEED
 			case USB_DT_DEVICE_QUALIFIER:
-				if (!gadget->is_dualspeed)
+				if (!gadget_is_dualspeed(gadget))
 					break;
 				/*
 				 * assumes ep0 uses the same value for both
@@ -1155,7 +1155,7 @@ printer_setup(struct usb_gadget *gadget, const struct usb_ctrlrequest *ctrl)
 				break;
 
 			case USB_DT_OTHER_SPEED_CONFIG:
-				if (!gadget->is_dualspeed)
+				if (!gadget_is_dualspeed(gadget))
 					break;
 				/* FALLTHROUGH */
 #endif /* CONFIG_USB_GADGET_DUALSPEED */
@@ -1535,7 +1535,7 @@ fail:
 /*-------------------------------------------------------------------------*/
 
 static struct usb_gadget_driver printer_driver = {
-	.speed		= DEVSPEED,
+	.max_speed	= DEVSPEED,
 
 	.function	= (char *) driver_desc,
 	.unbind		= printer_unbind,
diff --git a/drivers/usb/gadget/pxa25x_udc.c b/drivers/usb/gadget/pxa25x_udc.c
index c090a7e3ecf8..dd470635f4f7 100644
--- a/drivers/usb/gadget/pxa25x_udc.c
+++ b/drivers/usb/gadget/pxa25x_udc.c
@@ -1264,7 +1264,7 @@ static int pxa25x_start(struct usb_gadget_driver *driver,
 	int			retval;
 
 	if (!driver
-			|| driver->speed < USB_SPEED_FULL
+			|| driver->max_speed < USB_SPEED_FULL
 			|| !bind
 			|| !driver->disconnect
 			|| !driver->setup)
diff --git a/drivers/usb/gadget/pxa27x_udc.c b/drivers/usb/gadget/pxa27x_udc.c
index 18b6b091f2a6..f4c44eb806c3 100644
--- a/drivers/usb/gadget/pxa27x_udc.c
+++ b/drivers/usb/gadget/pxa27x_udc.c
@@ -1807,7 +1807,7 @@ static int pxa27x_udc_start(struct usb_gadget_driver *driver,
 	struct pxa_udc *udc = the_controller;
 	int retval;
 
-	if (!driver || driver->speed < USB_SPEED_FULL || !bind
+	if (!driver || driver->max_speed < USB_SPEED_FULL || !bind
 			|| !driver->disconnect || !driver->setup)
 		return -EINVAL;
 	if (!udc)
diff --git a/drivers/usb/gadget/r8a66597-udc.c b/drivers/usb/gadget/r8a66597-udc.c
index fc719a3f8557..f5b8d215e1d5 100644
--- a/drivers/usb/gadget/r8a66597-udc.c
+++ b/drivers/usb/gadget/r8a66597-udc.c
@@ -1746,7 +1746,7 @@ static int r8a66597_start(struct usb_gadget *gadget,
 	struct r8a66597 *r8a66597 = gadget_to_r8a66597(gadget);
 
 	if (!driver
-			|| driver->speed < USB_SPEED_HIGH
+			|| driver->max_speed < USB_SPEED_HIGH
 			|| !driver->setup)
 		return -EINVAL;
 	if (!r8a66597)
@@ -1911,7 +1911,7 @@ static int __init r8a66597_probe(struct platform_device *pdev)
 
 	r8a66597->gadget.ops = &r8a66597_gadget_ops;
 	dev_set_name(&r8a66597->gadget.dev, "gadget");
-	r8a66597->gadget.is_dualspeed = 1;
+	r8a66597->gadget.max_speed = USB_SPEED_HIGH;
 	r8a66597->gadget.dev.parent = &pdev->dev;
 	r8a66597->gadget.dev.dma_mask = pdev->dev.dma_mask;
 	r8a66597->gadget.dev.release = pdev->dev.release;
diff --git a/drivers/usb/gadget/s3c-hsotg.c b/drivers/usb/gadget/s3c-hsotg.c
index b31448229f0b..69295ba9d99a 100644
--- a/drivers/usb/gadget/s3c-hsotg.c
+++ b/drivers/usb/gadget/s3c-hsotg.c
@@ -2586,7 +2586,7 @@ static int s3c_hsotg_start(struct usb_gadget_driver *driver,
 		return -EINVAL;
 	}
 
-	if (driver->speed < USB_SPEED_FULL)
+	if (driver->max_speed < USB_SPEED_FULL)
 		dev_err(hsotg->dev, "%s: bad speed\n", __func__);
 
 	if (!bind || !driver->setup) {
@@ -3362,7 +3362,7 @@ static int __devinit s3c_hsotg_probe(struct platform_device *pdev)
 
 	dev_set_name(&hsotg->gadget.dev, "gadget");
 
-	hsotg->gadget.is_dualspeed = 1;
+	hsotg->gadget.max_speed = USB_SPEED_HIGH;
 	hsotg->gadget.ops = &s3c_hsotg_gadget_ops;
 	hsotg->gadget.name = dev_name(dev);
 
@@ -3467,18 +3467,7 @@ static struct platform_driver s3c_hsotg_driver = {
 	.resume		= s3c_hsotg_resume,
 };
 
-static int __init s3c_hsotg_modinit(void)
-{
-	return platform_driver_register(&s3c_hsotg_driver);
-}
-
-static void __exit s3c_hsotg_modexit(void)
-{
-	platform_driver_unregister(&s3c_hsotg_driver);
-}
-
-module_init(s3c_hsotg_modinit);
-module_exit(s3c_hsotg_modexit);
+module_platform_driver(s3c_hsotg_driver);
 
 MODULE_DESCRIPTION("Samsung S3C USB High-speed/OtG device");
 MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
diff --git a/drivers/usb/gadget/s3c-hsudc.c b/drivers/usb/gadget/s3c-hsudc.c
index 20a553b46aed..df8661d266cb 100644
--- a/drivers/usb/gadget/s3c-hsudc.c
+++ b/drivers/usb/gadget/s3c-hsudc.c
@@ -28,9 +28,10 @@
 #include <linux/usb/gadget.h>
 #include <linux/usb/otg.h>
 #include <linux/prefetch.h>
+#include <linux/platform_data/s3c-hsudc.h>
+#include <linux/regulator/consumer.h>
 
 #include <mach/regs-s3c2443-clock.h>
-#include <plat/udc.h>
 
 #define S3C_HSUDC_REG(x)	(x)
 
@@ -87,6 +88,12 @@
 #define DATA_STATE_XMIT			(1)
 #define DATA_STATE_RECV			(2)
 
+static const char * const s3c_hsudc_supply_names[] = {
+	"vdda",		/* analog phy supply, 3.3V */
+	"vddi",		/* digital phy supply, 1.2V */
+	"vddosc",	/* oscillator supply, 1.8V - 3.3V */
+};
+
 /**
  * struct s3c_hsudc_ep - Endpoint representation used by driver.
  * @ep: USB gadget layer representation of device endpoint.
@@ -139,6 +146,7 @@ struct s3c_hsudc {
 	struct device *dev;
 	struct s3c24xx_hsudc_platdata *pd;
 	struct otg_transceiver *transceiver;
+	struct regulator_bulk_data supplies[ARRAY_SIZE(s3c_hsudc_supply_names)];
 	spinlock_t lock;
 	void __iomem *regs;
 	struct resource *mem_rsrc;
@@ -153,7 +161,6 @@ struct s3c_hsudc {
 #define ep_index(_ep)		((_ep)->bEndpointAddress & \
 					USB_ENDPOINT_NUMBER_MASK)
 
-static struct s3c_hsudc *the_controller;
 static const char driver_name[] = "s3c-udc";
 static const char ep0name[] = "ep0-control";
 
@@ -282,8 +289,7 @@ static void s3c_hsudc_nuke_ep(struct s3c_hsudc_ep *hsep, int status)
  * All the endpoints are stopped and any pending transfer requests if any on
  * the endpoint are terminated.
  */
-static void s3c_hsudc_stop_activity(struct s3c_hsudc *hsudc,
-			  struct usb_gadget_driver *driver)
+static void s3c_hsudc_stop_activity(struct s3c_hsudc *hsudc)
 {
 	struct s3c_hsudc_ep *hsep;
 	int epnum;
@@ -295,10 +301,6 @@ static void s3c_hsudc_stop_activity(struct s3c_hsudc *hsudc,
 		hsep->stopped = 1;
 		s3c_hsudc_nuke_ep(hsep, -ESHUTDOWN);
 	}
-
-	spin_unlock(&hsudc->lock);
-	driver->disconnect(&hsudc->gadget);
-	spin_lock(&hsudc->lock);
 }
 
 /**
@@ -1135,16 +1137,15 @@ static irqreturn_t s3c_hsudc_irq(int irq, void *_dev)
 	return IRQ_HANDLED;
 }
 
-static int s3c_hsudc_start(struct usb_gadget_driver *driver,
-		int (*bind)(struct usb_gadget *))
+static int s3c_hsudc_start(struct usb_gadget *gadget,
+		struct usb_gadget_driver *driver)
 {
-	struct s3c_hsudc *hsudc = the_controller;
+	struct s3c_hsudc *hsudc = to_hsudc(gadget);
 	int ret;
 
 	if (!driver
-		|| driver->speed < USB_SPEED_FULL
-		|| !bind
-		|| !driver->unbind || !driver->disconnect || !driver->setup)
+		|| driver->max_speed < USB_SPEED_FULL
+		|| !driver->setup)
 		return -EINVAL;
 
 	if (!hsudc)
@@ -1155,21 +1156,12 @@ static int s3c_hsudc_start(struct usb_gadget_driver *driver,
 
 	hsudc->driver = driver;
 	hsudc->gadget.dev.driver = &driver->driver;
-	hsudc->gadget.speed = USB_SPEED_UNKNOWN;
-	ret = device_add(&hsudc->gadget.dev);
-	if (ret) {
-		dev_err(hsudc->dev, "failed to probe gadget device");
-		return ret;
-	}
 
-	ret = bind(&hsudc->gadget);
-	if (ret) {
-		dev_err(hsudc->dev, "%s: bind failed\n", hsudc->gadget.name);
-		device_del(&hsudc->gadget.dev);
-
-		hsudc->driver = NULL;
-		hsudc->gadget.dev.driver = NULL;
-		return ret;
+	ret = regulator_bulk_enable(ARRAY_SIZE(hsudc->supplies),
+				    hsudc->supplies);
+	if (ret != 0) {
+		dev_err(hsudc->dev, "failed to enable supplies: %d\n", ret);
+		goto err_supplies;
 	}
 
 	/* connect to bus through transceiver */
@@ -1178,13 +1170,7 @@ static int s3c_hsudc_start(struct usb_gadget_driver *driver,
 		if (ret) {
 			dev_err(hsudc->dev, "%s: can't bind to transceiver\n",
 					hsudc->gadget.name);
-			driver->unbind(&hsudc->gadget);
-
-			device_del(&hsudc->gadget.dev);
-
-			hsudc->driver = NULL;
-			hsudc->gadget.dev.driver = NULL;
-			return ret;
+			goto err_otg;
 		}
 	}
 
@@ -1197,34 +1183,43 @@ static int s3c_hsudc_start(struct usb_gadget_driver *driver,
 		hsudc->pd->gpio_init();
 
 	return 0;
+err_otg:
+	regulator_bulk_disable(ARRAY_SIZE(hsudc->supplies), hsudc->supplies);
+err_supplies:
+	hsudc->driver = NULL;
+	hsudc->gadget.dev.driver = NULL;
+	return ret;
 }
 
-static int s3c_hsudc_stop(struct usb_gadget_driver *driver)
+static int s3c_hsudc_stop(struct usb_gadget *gadget,
+		struct usb_gadget_driver *driver)
 {
-	struct s3c_hsudc *hsudc = the_controller;
+	struct s3c_hsudc *hsudc = to_hsudc(gadget);
 	unsigned long flags;
 
 	if (!hsudc)
 		return -ENODEV;
 
-	if (!driver || driver != hsudc->driver || !driver->unbind)
+	if (!driver || driver != hsudc->driver)
 		return -EINVAL;
 
 	spin_lock_irqsave(&hsudc->lock, flags);
-	hsudc->driver = 0;
+	hsudc->driver = NULL;
+	hsudc->gadget.dev.driver = NULL;
+	hsudc->gadget.speed = USB_SPEED_UNKNOWN;
 	s3c_hsudc_uninit_phy();
 	if (hsudc->pd->gpio_uninit)
 		hsudc->pd->gpio_uninit();
-	s3c_hsudc_stop_activity(hsudc, driver);
+	s3c_hsudc_stop_activity(hsudc);
 	spin_unlock_irqrestore(&hsudc->lock, flags);
 
 	if (hsudc->transceiver)
 		(void) otg_set_peripheral(hsudc->transceiver, NULL);
 
-	driver->unbind(&hsudc->gadget);
-	device_del(&hsudc->gadget.dev);
 	disable_irq(hsudc->irq);
 
+	regulator_bulk_disable(ARRAY_SIZE(hsudc->supplies), hsudc->supplies);
+
 	dev_info(hsudc->dev, "unregistered gadget driver '%s'\n",
 			driver->driver.name);
 	return 0;
@@ -1242,7 +1237,7 @@ static int s3c_hsudc_gadget_getframe(struct usb_gadget *gadget)
 
 static int s3c_hsudc_vbus_draw(struct usb_gadget *gadget, unsigned mA)
 {
-	struct s3c_hsudc *hsudc = the_controller;
+	struct s3c_hsudc *hsudc = to_hsudc(gadget);
 
 	if (!hsudc)
 		return -ENODEV;
@@ -1255,18 +1250,18 @@ static int s3c_hsudc_vbus_draw(struct usb_gadget *gadget, unsigned mA)
 
 static struct usb_gadget_ops s3c_hsudc_gadget_ops = {
 	.get_frame	= s3c_hsudc_gadget_getframe,
-	.start		= s3c_hsudc_start,
-	.stop		= s3c_hsudc_stop,
+	.udc_start	= s3c_hsudc_start,
+	.udc_stop	= s3c_hsudc_stop,
 	.vbus_draw	= s3c_hsudc_vbus_draw,
 };
 
-static int s3c_hsudc_probe(struct platform_device *pdev)
+static int __devinit s3c_hsudc_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct resource *res;
 	struct s3c_hsudc *hsudc;
 	struct s3c24xx_hsudc_platdata *pd = pdev->dev.platform_data;
-	int ret;
+	int ret, i;
 
 	hsudc = kzalloc(sizeof(struct s3c_hsudc) +
 			sizeof(struct s3c_hsudc_ep) * pd->epnum,
@@ -1276,13 +1271,22 @@ static int s3c_hsudc_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
-	the_controller = hsudc;
 	platform_set_drvdata(pdev, dev);
 	hsudc->dev = dev;
 	hsudc->pd = pdev->dev.platform_data;
 
 	hsudc->transceiver = otg_get_transceiver();
 
+	for (i = 0; i < ARRAY_SIZE(hsudc->supplies); i++)
+		hsudc->supplies[i].supply = s3c_hsudc_supply_names[i];
+
+	ret = regulator_bulk_get(dev, ARRAY_SIZE(hsudc->supplies),
+				 hsudc->supplies);
+	if (ret != 0) {
+		dev_err(dev, "failed to request supplies: %d\n", ret);
+		goto err_supplies;
+	}
+
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	if (!res) {
 		dev_err(dev, "unable to obtain driver resource data\n");
@@ -1307,10 +1311,9 @@ static int s3c_hsudc_probe(struct platform_device *pdev)
 
 	spin_lock_init(&hsudc->lock);
 
-	device_initialize(&hsudc->gadget.dev);
 	dev_set_name(&hsudc->gadget.dev, "gadget");
 
-	hsudc->gadget.is_dualspeed = 1;
+	hsudc->gadget.max_speed = USB_SPEED_HIGH;
 	hsudc->gadget.ops = &s3c_hsudc_gadget_ops;
 	hsudc->gadget.name = dev_name(dev);
 	hsudc->gadget.dev.parent = dev;
@@ -1319,6 +1322,7 @@ static int s3c_hsudc_probe(struct platform_device *pdev)
 
 	hsudc->gadget.is_otg = 0;
 	hsudc->gadget.is_a_peripheral = 0;
+	hsudc->gadget.speed = USB_SPEED_UNKNOWN;
 
 	s3c_hsudc_setup_ep(hsudc);
 
@@ -1348,12 +1352,20 @@ static int s3c_hsudc_probe(struct platform_device *pdev)
 	disable_irq(hsudc->irq);
 	local_irq_enable();
 
+	ret = device_register(&hsudc->gadget.dev);
+	if (ret) {
+		put_device(&hsudc->gadget.dev);
+		goto err_add_device;
+	}
+
 	ret = usb_add_gadget_udc(&pdev->dev, &hsudc->gadget);
 	if (ret)
 		goto err_add_udc;
 
 	return 0;
 err_add_udc:
+	device_unregister(&hsudc->gadget.dev);
+err_add_device:
 	clk_disable(hsudc->uclk);
 	clk_put(hsudc->uclk);
 err_clk:
@@ -1362,10 +1374,13 @@ err_irq:
 	iounmap(hsudc->regs);
 
 err_remap:
-	release_resource(hsudc->mem_rsrc);
-	kfree(hsudc->mem_rsrc);
-
+	release_mem_region(res->start, resource_size(res));
 err_res:
+	if (hsudc->transceiver)
+		otg_put_transceiver(hsudc->transceiver);
+
+	regulator_bulk_free(ARRAY_SIZE(hsudc->supplies), hsudc->supplies);
+err_supplies:
 	kfree(hsudc);
 	return ret;
 }
@@ -1377,21 +1392,10 @@ static struct platform_driver s3c_hsudc_driver = {
 	},
 	.probe		= s3c_hsudc_probe,
 };
-MODULE_ALIAS("platform:s3c-hsudc");
-
-static int __init s3c_hsudc_modinit(void)
-{
-	return platform_driver_register(&s3c_hsudc_driver);
-}
 
-static void __exit s3c_hsudc_modexit(void)
-{
-	platform_driver_unregister(&s3c_hsudc_driver);
-}
-
-module_init(s3c_hsudc_modinit);
-module_exit(s3c_hsudc_modexit);
+module_platform_driver(s3c_hsudc_driver);
 
 MODULE_DESCRIPTION("Samsung S3C24XX USB high-speed controller driver");
 MODULE_AUTHOR("Thomas Abraham <thomas.ab@samsung.com>");
 MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:s3c-hsudc");
diff --git a/drivers/usb/gadget/s3c2410_udc.c b/drivers/usb/gadget/s3c2410_udc.c
index fac4c650d4bb..3f87cb9344bb 100644
--- a/drivers/usb/gadget/s3c2410_udc.c
+++ b/drivers/usb/gadget/s3c2410_udc.c
@@ -1683,9 +1683,9 @@ static int s3c2410_udc_start(struct usb_gadget_driver *driver,
 	if (udc->driver)
 		return -EBUSY;
 
-	if (!bind || !driver->setup || driver->speed < USB_SPEED_FULL) {
+	if (!bind || !driver->setup || driver->max_speed < USB_SPEED_FULL) {
 		printk(KERN_ERR "Invalid driver: bind %p setup %p speed %d\n",
-			bind, driver->setup, driver->speed);
+			bind, driver->setup, driver->max_speed);
 		return -EINVAL;
 	}
 #if defined(MODULE)
diff --git a/drivers/usb/gadget/udc-core.c b/drivers/usb/gadget/udc-core.c
index 6939e17f4580..0b0d12ccc487 100644
--- a/drivers/usb/gadget/udc-core.c
+++ b/drivers/usb/gadget/udc-core.c
@@ -371,14 +371,28 @@ static ssize_t usb_udc_softconn_store(struct device *dev,
 }
 static DEVICE_ATTR(soft_connect, S_IWUSR, NULL, usb_udc_softconn_store);
 
-static ssize_t usb_udc_speed_show(struct device *dev,
+#define USB_UDC_SPEED_ATTR(name, param)					\
+ssize_t usb_udc_##param##_show(struct device *dev,			\
+		struct device_attribute *attr, char *buf)		\
+{									\
+	struct usb_udc *udc = container_of(dev, struct usb_udc, dev);	\
+	return snprintf(buf, PAGE_SIZE, "%s\n",				\
+			usb_speed_string(udc->gadget->param));		\
+}									\
+static DEVICE_ATTR(name, S_IRUSR, usb_udc_##param##_show, NULL)
+
+static USB_UDC_SPEED_ATTR(current_speed, speed);
+static USB_UDC_SPEED_ATTR(maximum_speed, max_speed);
+
+/* TODO: Scheduled for removal in 3.8. */
+static ssize_t usb_udc_is_dualspeed_show(struct device *dev,
 		struct device_attribute *attr, char *buf)
 {
 	struct usb_udc		*udc = container_of(dev, struct usb_udc, dev);
-	return snprintf(buf, PAGE_SIZE, "%s\n",
-			usb_speed_string(udc->gadget->speed));
+	return snprintf(buf, PAGE_SIZE, "%d\n",
+			gadget_is_dualspeed(udc->gadget));
 }
-static DEVICE_ATTR(speed, S_IRUGO, usb_udc_speed_show, NULL);
+static DEVICE_ATTR(is_dualspeed, S_IRUSR, usb_udc_is_dualspeed_show, NULL);
 
 #define USB_UDC_ATTR(name)					\
 ssize_t usb_udc_##name##_show(struct device *dev,		\
@@ -391,7 +405,6 @@ ssize_t usb_udc_##name##_show(struct device *dev,		\
 }								\
 static DEVICE_ATTR(name, S_IRUGO, usb_udc_##name##_show, NULL)
 
-static USB_UDC_ATTR(is_dualspeed);
 static USB_UDC_ATTR(is_otg);
 static USB_UDC_ATTR(is_a_peripheral);
 static USB_UDC_ATTR(b_hnp_enable);
@@ -401,7 +414,8 @@ static USB_UDC_ATTR(a_alt_hnp_support);
 static struct attribute *usb_udc_attrs[] = {
 	&dev_attr_srp.attr,
 	&dev_attr_soft_connect.attr,
-	&dev_attr_speed.attr,
+	&dev_attr_current_speed.attr,
+	&dev_attr_maximum_speed.attr,
 
 	&dev_attr_is_dualspeed.attr,
 	&dev_attr_is_otg.attr,
diff --git a/drivers/usb/gadget/usbstring.c b/drivers/usb/gadget/usbstring.c
index 58c4d37d312a..4d25b9009edf 100644
--- a/drivers/usb/gadget/usbstring.c
+++ b/drivers/usb/gadget/usbstring.c
@@ -13,82 +13,17 @@
 #include <linux/string.h>
 #include <linux/device.h>
 #include <linux/init.h>
+#include <linux/nls.h>
 
 #include <linux/usb/ch9.h>
 #include <linux/usb/gadget.h>
 
-#include <asm/unaligned.h>
-
-
-static int utf8_to_utf16le(const char *s, __le16 *cp, unsigned len)
-{
-	int	count = 0;
-	u8	c;
-	u16	uchar;
-
-	/* this insists on correct encodings, though not minimal ones.
-	 * BUT it currently rejects legit 4-byte UTF-8 code points,
-	 * which need surrogate pairs.  (Unicode 3.1 can use them.)
-	 */
-	while (len != 0 && (c = (u8) *s++) != 0) {
-		if (unlikely(c & 0x80)) {
-			// 2-byte sequence:
-			// 00000yyyyyxxxxxx = 110yyyyy 10xxxxxx
-			if ((c & 0xe0) == 0xc0) {
-				uchar = (c & 0x1f) << 6;
-
-				c = (u8) *s++;
-				if ((c & 0xc0) != 0x80)
-					goto fail;
-				c &= 0x3f;
-				uchar |= c;
-
-			// 3-byte sequence (most CJKV characters):
-			// zzzzyyyyyyxxxxxx = 1110zzzz 10yyyyyy 10xxxxxx
-			} else if ((c & 0xf0) == 0xe0) {
-				uchar = (c & 0x0f) << 12;
-
-				c = (u8) *s++;
-				if ((c & 0xc0) != 0x80)
-					goto fail;
-				c &= 0x3f;
-				uchar |= c << 6;
-
-				c = (u8) *s++;
-				if ((c & 0xc0) != 0x80)
-					goto fail;
-				c &= 0x3f;
-				uchar |= c;
-
-				/* no bogus surrogates */
-				if (0xd800 <= uchar && uchar <= 0xdfff)
-					goto fail;
-
-			// 4-byte sequence (surrogate pairs, currently rare):
-			// 11101110wwwwzzzzyy + 110111yyyyxxxxxx
-			//     = 11110uuu 10uuzzzz 10yyyyyy 10xxxxxx
-			// (uuuuu = wwww + 1)
-			// FIXME accept the surrogate code points (only)
-
-			} else
-				goto fail;
-		} else
-			uchar = c;
-		put_unaligned_le16(uchar, cp++);
-		count++;
-		len--;
-	}
-	return count;
-fail:
-	return -1;
-}
-
 
 /**
  * usb_gadget_get_string - fill out a string descriptor 
  * @table: of c strings encoded using UTF-8
  * @id: string id, from low byte of wValue in get string descriptor
- * @buf: at least 256 bytes
+ * @buf: at least 256 bytes, must be 16-bit aligned
  *
  * Finds the UTF-8 string matching the ID, and converts it into a
  * string descriptor in utf16-le.
@@ -125,8 +60,8 @@ usb_gadget_get_string (struct usb_gadget_strings *table, int id, u8 *buf)
 
 	/* string descriptors have length, tag, then UTF16-LE text */
 	len = min ((size_t) 126, strlen (s->s));
-	memset (buf + 2, 0, 2 * len);	/* zero all the bytes */
-	len = utf8_to_utf16le(s->s, (__le16 *)&buf[2], len);
+	len = utf8s_to_utf16s(s->s, len, UTF16_LITTLE_ENDIAN,
+			(wchar_t *) &buf[2], 126);
 	if (len < 0)
 		return -EINVAL;
 	buf [0] = (len + 1) * 2;
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 060e0e2b1ae6..4c0c9734251d 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -194,6 +194,15 @@ config USB_EHCI_S5P
        help
 	 Enable support for the S5P SOC's on-chip EHCI controller.
 
+config USB_EHCI_MV
+	bool "EHCI support for Marvell on-chip controller"
+	depends on USB_EHCI_HCD
+	select USB_EHCI_ROOT_HUB_TT
+	---help---
+	  Enables support for Marvell (including PXA and MMP series) on-chip
+	  USB SPH and OTG controller. SPH is a single port host, and it can
+	  only be EHCI host. OTG is controller that can switch to host mode.
+
 config USB_W90X900_EHCI
 	bool "W90X900(W90P910) EHCI support"
 	depends on USB_EHCI_HCD && ARCH_W90X900
@@ -371,6 +380,12 @@ config USB_OHCI_SH
 	  Enables support for the on-chip OHCI controller on the SuperH.
 	  If you use the PCI OHCI controller, this option is not necessary.
 
+config USB_OHCI_EXYNOS
+	boolean "OHCI support for Samsung EXYNOS SoC Series"
+	depends on USB_OHCI_HCD && ARCH_EXYNOS
+	help
+	 Enable support for the Samsung Exynos SOC's on-chip OHCI controller.
+
 config USB_CNS3XXX_OHCI
 	bool "Cavium CNS3XXX OHCI Module"
 	depends on USB_OHCI_HCD && ARCH_CNS3XXX
diff --git a/drivers/usb/host/ehci-au1xxx.c b/drivers/usb/host/ehci-au1xxx.c
index 18bafa99fe57..bf7441afed16 100644
--- a/drivers/usb/host/ehci-au1xxx.c
+++ b/drivers/usb/host/ehci-au1xxx.c
@@ -23,6 +23,7 @@ static int au1xxx_ehci_setup(struct usb_hcd *hcd)
 	int ret = ehci_init(hcd);
 
 	ehci->need_io_watchdog = 0;
+	ehci_reset(ehci);
 	return ret;
 }
 
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index 3ff9f82f7263..e311a511529b 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -48,6 +48,10 @@
 #include <asm/system.h>
 #include <asm/unaligned.h>
 
+#if defined(CONFIG_PPC_PS3)
+#include <asm/firmware.h>
+#endif
+
 /*-------------------------------------------------------------------------*/
 
 /*
@@ -230,12 +234,58 @@ static int ehci_halt (struct ehci_hcd *ehci)
 			  STS_HALT, STS_HALT, 16 * 125);
 }
 
+#if defined(CONFIG_USB_SUSPEND) && defined(CONFIG_PPC_PS3)
+
+/*
+ * The EHCI controller of the Cell Super Companion Chip used in the
+ * PS3 will stop the root hub after all root hub ports are suspended.
+ * When in this condition handshake will return -ETIMEDOUT.  The
+ * STS_HLT bit will not be set, so inspection of the frame index is
+ * used here to test for the condition.  If the condition is found
+ * return success to allow the USB suspend to complete.
+ */
+
+static int handshake_for_broken_root_hub(struct ehci_hcd *ehci,
+					 void __iomem *ptr, u32 mask, u32 done,
+					 int usec)
+{
+	unsigned int old_index;
+	int error;
+
+	if (!firmware_has_feature(FW_FEATURE_PS3_LV1))
+		return -ETIMEDOUT;
+
+	old_index = ehci_read_frame_index(ehci);
+
+	error = handshake(ehci, ptr, mask, done, usec);
+
+	if (error == -ETIMEDOUT && ehci_read_frame_index(ehci) == old_index)
+		return 0;
+
+	return error;
+}
+
+#else
+
+static int handshake_for_broken_root_hub(struct ehci_hcd *ehci,
+					 void __iomem *ptr, u32 mask, u32 done,
+					 int usec)
+{
+	return -ETIMEDOUT;
+}
+
+#endif
+
 static int handshake_on_error_set_halt(struct ehci_hcd *ehci, void __iomem *ptr,
 				       u32 mask, u32 done, int usec)
 {
 	int error;
 
 	error = handshake(ehci, ptr, mask, done, usec);
+	if (error == -ETIMEDOUT)
+		error = handshake_for_broken_root_hub(ehci, ptr, mask, done,
+						      usec);
+
 	if (error) {
 		ehci_halt(ehci);
 		ehci->rh_state = EHCI_RH_HALTED;
@@ -620,6 +670,7 @@ static int ehci_init(struct usb_hcd *hcd)
 	hw = ehci->async->hw;
 	hw->hw_next = QH_NEXT(ehci, ehci->async->qh_dma);
 	hw->hw_info1 = cpu_to_hc32(ehci, QH_HEAD);
+	hw->hw_info1 |= cpu_to_hc32(ehci, (1 << 7));	/* I = 1 */
 	hw->hw_token = cpu_to_hc32(ehci, QTD_STS_HALT);
 	hw->hw_qtd_next = EHCI_LIST_END(ehci);
 	ehci->async->qh_state = QH_STATE_LINKED;
@@ -677,22 +728,13 @@ static int ehci_init(struct usb_hcd *hcd)
 static int ehci_run (struct usb_hcd *hcd)
 {
 	struct ehci_hcd		*ehci = hcd_to_ehci (hcd);
-	int			retval;
 	u32			temp;
 	u32			hcc_params;
 
 	hcd->uses_new_polling = 1;
 
 	/* EHCI spec section 4.1 */
-	/*
-	 * TDI driver does the ehci_reset in their reset callback.
-	 * Don't reset here, because configuration settings will
-	 * vanish.
-	 */
-	if (!ehci_is_TDI(ehci) && (retval = ehci_reset(ehci)) != 0) {
-		ehci_mem_cleanup(ehci);
-		return retval;
-	}
+
 	ehci_writel(ehci, ehci->periodic_dma, &ehci->regs->frame_list);
 	ehci_writel(ehci, (u32)ehci->async->qh_dma, &ehci->regs->async_next);
 
@@ -1324,11 +1366,16 @@ MODULE_LICENSE ("GPL");
 #define PLATFORM_DRIVER		ehci_pxa168_driver
 #endif
 
-#ifdef CONFIG_NLM_XLR
+#ifdef CONFIG_CPU_XLR
 #include "ehci-xls.c"
 #define PLATFORM_DRIVER		ehci_xls_driver
 #endif
 
+#ifdef CONFIG_USB_EHCI_MV
+#include "ehci-mv.c"
+#define        PLATFORM_DRIVER         ehci_mv_driver
+#endif
+
 #if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER) && \
     !defined(PS3_SYSTEM_BUS_DRIVER) && !defined(OF_PLATFORM_DRIVER) && \
     !defined(XILINX_OF_PLATFORM_DRIVER)
diff --git a/drivers/usb/host/ehci-mv.c b/drivers/usb/host/ehci-mv.c
new file mode 100644
index 000000000000..52a604fb9321
--- /dev/null
+++ b/drivers/usb/host/ehci-mv.c
@@ -0,0 +1,391 @@
+/*
+ * Copyright (C) 2011 Marvell International Ltd. All rights reserved.
+ * Author: Chao Xie <chao.xie@marvell.com>
+ *        Neil Zhang <zhangwm@marvell.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/usb/otg.h>
+#include <linux/platform_data/mv_usb.h>
+
+#define CAPLENGTH_MASK         (0xff)
+
+struct ehci_hcd_mv {
+	struct usb_hcd *hcd;
+
+	/* Which mode does this ehci running OTG/Host ? */
+	int mode;
+
+	void __iomem *phy_regs;
+	void __iomem *cap_regs;
+	void __iomem *op_regs;
+
+	struct otg_transceiver *otg;
+
+	struct mv_usb_platform_data *pdata;
+
+	/* clock source and total clock number */
+	unsigned int clknum;
+	struct clk *clk[0];
+};
+
+static void ehci_clock_enable(struct ehci_hcd_mv *ehci_mv)
+{
+	unsigned int i;
+
+	for (i = 0; i < ehci_mv->clknum; i++)
+		clk_enable(ehci_mv->clk[i]);
+}
+
+static void ehci_clock_disable(struct ehci_hcd_mv *ehci_mv)
+{
+	unsigned int i;
+
+	for (i = 0; i < ehci_mv->clknum; i++)
+		clk_disable(ehci_mv->clk[i]);
+}
+
+static int mv_ehci_enable(struct ehci_hcd_mv *ehci_mv)
+{
+	int retval;
+
+	ehci_clock_enable(ehci_mv);
+	if (ehci_mv->pdata->phy_init) {
+		retval = ehci_mv->pdata->phy_init(ehci_mv->phy_regs);
+		if (retval)
+			return retval;
+	}
+
+	return 0;
+}
+
+static void mv_ehci_disable(struct ehci_hcd_mv *ehci_mv)
+{
+	if (ehci_mv->pdata->phy_deinit)
+		ehci_mv->pdata->phy_deinit(ehci_mv->phy_regs);
+	ehci_clock_disable(ehci_mv);
+}
+
+static int mv_ehci_reset(struct usb_hcd *hcd)
+{
+	struct ehci_hcd *ehci = hcd_to_ehci(hcd);
+	struct device *dev = hcd->self.controller;
+	struct ehci_hcd_mv *ehci_mv = dev_get_drvdata(dev);
+	int retval;
+
+	if (ehci_mv == NULL) {
+		dev_err(dev, "Can not find private ehci data\n");
+		return -ENODEV;
+	}
+
+	/*
+	 * data structure init
+	 */
+	retval = ehci_init(hcd);
+	if (retval) {
+		dev_err(dev, "ehci_init failed %d\n", retval);
+		return retval;
+	}
+
+	hcd->has_tt = 1;
+	ehci->sbrn = 0x20;
+
+	retval = ehci_reset(ehci);
+	if (retval) {
+		dev_err(dev, "ehci_reset failed %d\n", retval);
+		return retval;
+	}
+
+	return 0;
+}
+
+static const struct hc_driver mv_ehci_hc_driver = {
+	.description = hcd_name,
+	.product_desc = "Marvell EHCI",
+	.hcd_priv_size = sizeof(struct ehci_hcd),
+
+	/*
+	 * generic hardware linkage
+	 */
+	.irq = ehci_irq,
+	.flags = HCD_MEMORY | HCD_USB2,
+
+	/*
+	 * basic lifecycle operations
+	 */
+	.reset = mv_ehci_reset,
+	.start = ehci_run,
+	.stop = ehci_stop,
+	.shutdown = ehci_shutdown,
+
+	/*
+	 * managing i/o requests and associated device resources
+	 */
+	.urb_enqueue = ehci_urb_enqueue,
+	.urb_dequeue = ehci_urb_dequeue,
+	.endpoint_disable = ehci_endpoint_disable,
+	.endpoint_reset = ehci_endpoint_reset,
+	.clear_tt_buffer_complete = ehci_clear_tt_buffer_complete,
+
+	/*
+	 * scheduling support
+	 */
+	.get_frame_number = ehci_get_frame,
+
+	/*
+	 * root hub support
+	 */
+	.hub_status_data = ehci_hub_status_data,
+	.hub_control = ehci_hub_control,
+	.bus_suspend = ehci_bus_suspend,
+	.bus_resume = ehci_bus_resume,
+};
+
+static int mv_ehci_probe(struct platform_device *pdev)
+{
+	struct mv_usb_platform_data *pdata = pdev->dev.platform_data;
+	struct usb_hcd *hcd;
+	struct ehci_hcd *ehci;
+	struct ehci_hcd_mv *ehci_mv;
+	struct resource *r;
+	int clk_i, retval = -ENODEV;
+	u32 offset;
+	size_t size;
+
+	if (!pdata) {
+		dev_err(&pdev->dev, "missing platform_data\n");
+		return -ENODEV;
+	}
+
+	if (usb_disabled())
+		return -ENODEV;
+
+	hcd = usb_create_hcd(&mv_ehci_hc_driver, &pdev->dev, "mv ehci");
+	if (!hcd)
+		return -ENOMEM;
+
+	size = sizeof(*ehci_mv) + sizeof(struct clk *) * pdata->clknum;
+	ehci_mv = kzalloc(size, GFP_KERNEL);
+	if (ehci_mv == NULL) {
+		dev_err(&pdev->dev, "cannot allocate ehci_hcd_mv\n");
+		retval = -ENOMEM;
+		goto err_put_hcd;
+	}
+
+	platform_set_drvdata(pdev, ehci_mv);
+	ehci_mv->pdata = pdata;
+	ehci_mv->hcd = hcd;
+
+	ehci_mv->clknum = pdata->clknum;
+	for (clk_i = 0; clk_i < ehci_mv->clknum; clk_i++) {
+		ehci_mv->clk[clk_i] =
+		    clk_get(&pdev->dev, pdata->clkname[clk_i]);
+		if (IS_ERR(ehci_mv->clk[clk_i])) {
+			dev_err(&pdev->dev, "error get clck \"%s\"\n",
+				pdata->clkname[clk_i]);
+			retval = PTR_ERR(ehci_mv->clk[clk_i]);
+			goto err_put_clk;
+		}
+	}
+
+	r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "phyregs");
+	if (r == NULL) {
+		dev_err(&pdev->dev, "no phy I/O memory resource defined\n");
+		retval = -ENODEV;
+		goto err_put_clk;
+	}
+
+	ehci_mv->phy_regs = ioremap(r->start, resource_size(r));
+	if (ehci_mv->phy_regs == 0) {
+		dev_err(&pdev->dev, "failed to map phy I/O memory\n");
+		retval = -EFAULT;
+		goto err_put_clk;
+	}
+
+	r = platform_get_resource_byname(pdev, IORESOURCE_MEM, "capregs");
+	if (!r) {
+		dev_err(&pdev->dev, "no I/O memory resource defined\n");
+		retval = -ENODEV;
+		goto err_iounmap_phyreg;
+	}
+
+	ehci_mv->cap_regs = ioremap(r->start, resource_size(r));
+	if (ehci_mv->cap_regs == NULL) {
+		dev_err(&pdev->dev, "failed to map I/O memory\n");
+		retval = -EFAULT;
+		goto err_iounmap_phyreg;
+	}
+
+	retval = mv_ehci_enable(ehci_mv);
+	if (retval) {
+		dev_err(&pdev->dev, "init phy error %d\n", retval);
+		goto err_iounmap_capreg;
+	}
+
+	offset = readl(ehci_mv->cap_regs) & CAPLENGTH_MASK;
+	ehci_mv->op_regs =
+		(void __iomem *) ((unsigned long) ehci_mv->cap_regs + offset);
+
+	hcd->rsrc_start = r->start;
+	hcd->rsrc_len = r->end - r->start + 1;
+	hcd->regs = ehci_mv->op_regs;
+
+	hcd->irq = platform_get_irq(pdev, 0);
+	if (!hcd->irq) {
+		dev_err(&pdev->dev, "Cannot get irq.");
+		retval = -ENODEV;
+		goto err_disable_clk;
+	}
+
+	ehci = hcd_to_ehci(hcd);
+	ehci->caps = (struct ehci_caps *) ehci_mv->cap_regs;
+	ehci->regs = (struct ehci_regs *) ehci_mv->op_regs;
+	ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);
+
+	ehci_mv->mode = pdata->mode;
+	if (ehci_mv->mode == MV_USB_MODE_OTG) {
+#ifdef CONFIG_USB_OTG_UTILS
+		ehci_mv->otg = otg_get_transceiver();
+		if (!ehci_mv->otg) {
+			dev_err(&pdev->dev,
+				"unable to find transceiver\n");
+			retval = -ENODEV;
+			goto err_disable_clk;
+		}
+
+		retval = otg_set_host(ehci_mv->otg, &hcd->self);
+		if (retval < 0) {
+			dev_err(&pdev->dev,
+				"unable to register with transceiver\n");
+			retval = -ENODEV;
+			goto err_put_transceiver;
+		}
+		/* otg will enable clock before use as host */
+		mv_ehci_disable(ehci_mv);
+#else
+		dev_info(&pdev->dev, "MV_USB_MODE_OTG "
+			 "must have CONFIG_USB_OTG_UTILS enabled\n");
+		goto err_disable_clk;
+#endif
+	} else {
+		if (pdata->set_vbus)
+			pdata->set_vbus(1);
+
+		retval = usb_add_hcd(hcd, hcd->irq, IRQF_SHARED);
+		if (retval) {
+			dev_err(&pdev->dev,
+				"failed to add hcd with err %d\n", retval);
+			goto err_set_vbus;
+		}
+	}
+
+	if (pdata->private_init)
+		pdata->private_init(ehci_mv->op_regs, ehci_mv->phy_regs);
+
+	dev_info(&pdev->dev,
+		 "successful find EHCI device with regs 0x%p irq %d"
+		 " working in %s mode\n", hcd->regs, hcd->irq,
+		 ehci_mv->mode == MV_USB_MODE_OTG ? "OTG" : "Host");
+
+	return 0;
+
+err_set_vbus:
+	if (pdata->set_vbus)
+		pdata->set_vbus(0);
+#ifdef CONFIG_USB_OTG_UTILS
+err_put_transceiver:
+	if (ehci_mv->otg)
+		otg_put_transceiver(ehci_mv->otg);
+#endif
+err_disable_clk:
+	mv_ehci_disable(ehci_mv);
+err_iounmap_capreg:
+	iounmap(ehci_mv->cap_regs);
+err_iounmap_phyreg:
+	iounmap(ehci_mv->phy_regs);
+err_put_clk:
+	for (clk_i--; clk_i >= 0; clk_i--)
+		clk_put(ehci_mv->clk[clk_i]);
+	platform_set_drvdata(pdev, NULL);
+	kfree(ehci_mv);
+err_put_hcd:
+	usb_put_hcd(hcd);
+
+	return retval;
+}
+
+static int mv_ehci_remove(struct platform_device *pdev)
+{
+	struct ehci_hcd_mv *ehci_mv = platform_get_drvdata(pdev);
+	struct usb_hcd *hcd = ehci_mv->hcd;
+	int clk_i;
+
+	if (hcd->rh_registered)
+		usb_remove_hcd(hcd);
+
+	if (ehci_mv->otg) {
+		otg_set_host(ehci_mv->otg, NULL);
+		otg_put_transceiver(ehci_mv->otg);
+	}
+
+	if (ehci_mv->mode == MV_USB_MODE_HOST) {
+		if (ehci_mv->pdata->set_vbus)
+			ehci_mv->pdata->set_vbus(0);
+
+		mv_ehci_disable(ehci_mv);
+	}
+
+	iounmap(ehci_mv->cap_regs);
+	iounmap(ehci_mv->phy_regs);
+
+	for (clk_i = 0; clk_i < ehci_mv->clknum; clk_i++)
+		clk_put(ehci_mv->clk[clk_i]);
+
+	platform_set_drvdata(pdev, NULL);
+
+	kfree(ehci_mv);
+	usb_put_hcd(hcd);
+
+	return 0;
+}
+
+MODULE_ALIAS("mv-ehci");
+
+static const struct platform_device_id ehci_id_table[] = {
+	{"pxa-u2oehci", PXA_U2OEHCI},
+	{"pxa-sph", PXA_SPH},
+	{"mmp3-hsic", MMP3_HSIC},
+	{"mmp3-fsic", MMP3_FSIC},
+	{},
+};
+
+static void mv_ehci_shutdown(struct platform_device *pdev)
+{
+	struct ehci_hcd_mv *ehci_mv = platform_get_drvdata(pdev);
+	struct usb_hcd *hcd = ehci_mv->hcd;
+
+	if (!hcd->rh_registered)
+		return;
+
+	if (hcd->driver->shutdown)
+		hcd->driver->shutdown(hcd);
+}
+
+static struct platform_driver ehci_mv_driver = {
+	.probe = mv_ehci_probe,
+	.remove = mv_ehci_remove,
+	.shutdown = mv_ehci_shutdown,
+	.driver = {
+		   .name = "mv-ehci",
+		   .bus = &platform_bus_type,
+		   },
+	.id_table = ehci_id_table,
+};
diff --git a/drivers/usb/host/ehci-octeon.c b/drivers/usb/host/ehci-octeon.c
index ba1f51361134..c0104882c72d 100644
--- a/drivers/usb/host/ehci-octeon.c
+++ b/drivers/usb/host/ehci-octeon.c
@@ -155,6 +155,8 @@ static int ehci_octeon_drv_probe(struct platform_device *pdev)
 	/* cache this readonly data; minimize chip reads */
 	ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);
 
+	ehci_reset(ehci);
+
 	ret = usb_add_hcd(hcd, irq, IRQF_SHARED);
 	if (ret) {
 		dev_dbg(&pdev->dev, "failed to add hcd with err %d\n", ret);
diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c
index e39b0297bad1..bba9850f32f0 100644
--- a/drivers/usb/host/ehci-omap.c
+++ b/drivers/usb/host/ehci-omap.c
@@ -41,6 +41,7 @@
 #include <linux/usb/ulpi.h>
 #include <plat/usb.h>
 #include <linux/regulator/consumer.h>
+#include <linux/pm_runtime.h>
 
 /* EHCI Register Set */
 #define EHCI_INSNREG04					(0xA0)
@@ -190,11 +191,8 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev)
 		}
 	}
 
-	ret = omap_usbhs_enable(dev);
-	if (ret) {
-		dev_err(dev, "failed to start usbhs with err %d\n", ret);
-		goto err_enable;
-	}
+	pm_runtime_enable(dev);
+	pm_runtime_get_sync(dev);
 
 	/*
 	 * An undocumented "feature" in the OMAP3 EHCI controller,
@@ -228,6 +226,8 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev)
 	/* cache this readonly data; minimize chip reads */
 	omap_ehci->hcs_params = readl(&omap_ehci->caps->hcs_params);
 
+	ehci_reset(omap_ehci);
+
 	ret = usb_add_hcd(hcd, irq, IRQF_SHARED);
 	if (ret) {
 		dev_err(dev, "failed to add hcd with err %d\n", ret);
@@ -240,11 +240,8 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev)
 	return 0;
 
 err_add_hcd:
-	omap_usbhs_disable(dev);
-
-err_enable:
 	disable_put_regulator(pdata);
-	usb_put_hcd(hcd);
+	pm_runtime_put_sync(dev);
 
 err_io:
 	iounmap(regs);
@@ -266,10 +263,12 @@ static int ehci_hcd_omap_remove(struct platform_device *pdev)
 	struct usb_hcd *hcd	= dev_get_drvdata(dev);
 
 	usb_remove_hcd(hcd);
-	omap_usbhs_disable(dev);
 	disable_put_regulator(dev->platform_data);
 	iounmap(hcd->regs);
 	usb_put_hcd(hcd);
+	pm_runtime_put_sync(dev);
+	pm_runtime_disable(dev);
+
 	return 0;
 }
 
diff --git a/drivers/usb/host/ehci-orion.c b/drivers/usb/host/ehci-orion.c
index a68a2a5c4b83..6c6a5a3b4ea7 100644
--- a/drivers/usb/host/ehci-orion.c
+++ b/drivers/usb/host/ehci-orion.c
@@ -172,7 +172,7 @@ static const struct hc_driver ehci_orion_hc_driver = {
 
 static void __init
 ehci_orion_conf_mbus_windows(struct usb_hcd *hcd,
-				struct mbus_dram_target_info *dram)
+			     const struct mbus_dram_target_info *dram)
 {
 	int i;
 
@@ -182,7 +182,7 @@ ehci_orion_conf_mbus_windows(struct usb_hcd *hcd,
 	}
 
 	for (i = 0; i < dram->num_cs; i++) {
-		struct mbus_dram_window *cs = dram->cs + i;
+		const struct mbus_dram_window *cs = dram->cs + i;
 
 		wrl(USB_WINDOW_CTRL(i), ((cs->size - 1) & 0xffff0000) |
 					(cs->mbus_attr << 8) |
@@ -194,6 +194,7 @@ ehci_orion_conf_mbus_windows(struct usb_hcd *hcd,
 static int __devinit ehci_orion_drv_probe(struct platform_device *pdev)
 {
 	struct orion_ehci_data *pd = pdev->dev.platform_data;
+	const struct mbus_dram_target_info *dram;
 	struct resource *res;
 	struct usb_hcd *hcd;
 	struct ehci_hcd *ehci;
@@ -259,8 +260,9 @@ static int __devinit ehci_orion_drv_probe(struct platform_device *pdev)
 	/*
 	 * (Re-)program MBUS remapping windows if we are asked to.
 	 */
-	if (pd != NULL && pd->dram != NULL)
-		ehci_orion_conf_mbus_windows(hcd, pd->dram);
+	dram = mv_mbus_dram_info();
+	if (dram)
+		ehci_orion_conf_mbus_windows(hcd, dram);
 
 	/*
 	 * setup Orion USB controller.
diff --git a/drivers/usb/host/ehci-ps3.c b/drivers/usb/host/ehci-ps3.c
index 2dc32da75cfc..a20e496eb479 100644
--- a/drivers/usb/host/ehci-ps3.c
+++ b/drivers/usb/host/ehci-ps3.c
@@ -21,6 +21,34 @@
 #include <asm/firmware.h>
 #include <asm/ps3.h>
 
+static void ps3_ehci_setup_insnreg(struct ehci_hcd *ehci)
+{
+	/* PS3 HC internal setup register offsets. */
+
+	enum ps3_ehci_hc_insnreg {
+		ps3_ehci_hc_insnreg01 = 0x084,
+		ps3_ehci_hc_insnreg02 = 0x088,
+		ps3_ehci_hc_insnreg03 = 0x08c,
+	};
+
+	/* PS3 EHCI HC errata fix 316 - The PS3 EHCI HC will reset its
+	 * internal INSNREGXX setup regs back to the chip default values
+	 * on Host Controller Reset (CMD_RESET) or Light Host Controller
+	 * Reset (CMD_LRESET).  The work-around for this is for the HC
+	 * driver to re-initialise these regs when ever the HC is reset.
+	 */
+
+	/* Set burst transfer counts to 256 out, 32 in. */
+
+	writel_be(0x01000020, (void __iomem *)ehci->regs +
+		ps3_ehci_hc_insnreg01);
+
+	/* Enable burst transfer counts. */
+
+	writel_be(0x00000001, (void __iomem *)ehci->regs +
+		ps3_ehci_hc_insnreg03);
+}
+
 static int ps3_ehci_hc_reset(struct usb_hcd *hcd)
 {
 	int result;
@@ -49,6 +77,8 @@ static int ps3_ehci_hc_reset(struct usb_hcd *hcd)
 
 	ehci_reset(ehci);
 
+	ps3_ehci_setup_insnreg(ehci);
+
 	return result;
 }
 
diff --git a/drivers/usb/host/ehci-pxa168.c b/drivers/usb/host/ehci-pxa168.c
index ac0c16e8f539..8d0e7a22e711 100644
--- a/drivers/usb/host/ehci-pxa168.c
+++ b/drivers/usb/host/ehci-pxa168.c
@@ -299,7 +299,7 @@ static int __devinit ehci_pxa168_drv_probe(struct platform_device *pdev)
 	ehci = hcd_to_ehci(hcd);
 	ehci->caps = hcd->regs + 0x100;
 	ehci->regs = hcd->regs + 0x100 +
-		HC_LENGTH(ehci_readl(ehci, &ehci->caps->hc_capbase));
+		HC_LENGTH(ehci, ehci_readl(ehci, &ehci->caps->hc_capbase));
 	ehci->hcs_params = ehci_readl(ehci, &ehci->caps->hcs_params);
 	hcd->has_tt = 1;
 	ehci->sbrn = 0x20;
diff --git a/drivers/usb/host/ehci-q.c b/drivers/usb/host/ehci-q.c
index 4e4066c35a09..36ca5077cdf7 100644
--- a/drivers/usb/host/ehci-q.c
+++ b/drivers/usb/host/ehci-q.c
@@ -373,6 +373,17 @@ qh_completions (struct ehci_hcd *ehci, struct ehci_qh *qh)
  retry_xacterr:
 		if ((token & QTD_STS_ACTIVE) == 0) {
 
+			/* Report Data Buffer Error: non-fatal but useful */
+			if (token & QTD_STS_DBE)
+				ehci_dbg(ehci,
+					"detected DataBufferErr for urb %p ep%d%s len %d, qtd %p [qh %p]\n",
+					urb,
+					usb_endpoint_num(&urb->ep->desc),
+					usb_endpoint_dir_in(&urb->ep->desc) ? "in" : "out",
+					urb->transfer_buffer_length,
+					qtd,
+					qh);
+
 			/* on STALL, error, and short reads this urb must
 			 * complete and all its qtds must be recycled.
 			 */
@@ -647,7 +658,7 @@ qh_urb_transaction (
 	/*
 	 * data transfer stage:  buffer setup
 	 */
-	i = urb->num_sgs;
+	i = urb->num_mapped_sgs;
 	if (len > 0 && i > 0) {
 		sg = urb->sg;
 		buf = sg_dma_address(sg);
diff --git a/drivers/usb/host/ehci-s5p.c b/drivers/usb/host/ehci-s5p.c
index 024b65c4990d..293f7412992e 100644
--- a/drivers/usb/host/ehci-s5p.c
+++ b/drivers/usb/host/ehci-s5p.c
@@ -14,8 +14,6 @@
 
 #include <linux/clk.h>
 #include <linux/platform_device.h>
-#include <mach/regs-pmu.h>
-#include <plat/cpu.h>
 #include <plat/ehci.h>
 #include <plat/usb-phy.h>
 
@@ -136,6 +134,8 @@ static int __devinit s5p_ehci_probe(struct platform_device *pdev)
 	/* cache this readonly data; minimize chip reads */
 	ehci->hcs_params = readl(&ehci->caps->hcs_params);
 
+	ehci_reset(ehci);
+
 	err = usb_add_hcd(hcd, irq, IRQF_SHARED);
 	if (err) {
 		dev_err(&pdev->dev, "Failed to add USB HCD\n");
diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c
index db9d1b4bfbdc..dbc7fe8ca9e7 100644
--- a/drivers/usb/host/ehci-tegra.c
+++ b/drivers/usb/host/ehci-tegra.c
@@ -21,7 +21,12 @@
 #include <linux/platform_data/tegra_usb.h>
 #include <linux/irq.h>
 #include <linux/usb/otg.h>
+#include <linux/gpio.h>
+#include <linux/of.h>
+#include <linux/of_gpio.h>
+
 #include <mach/usb_phy.h>
+#include <mach/iomap.h>
 
 #define TEGRA_USB_DMA_ALIGN 32
 
@@ -574,6 +579,35 @@ static const struct hc_driver tegra_ehci_hc_driver = {
 	.port_handed_over	= ehci_port_handed_over,
 };
 
+static int setup_vbus_gpio(struct platform_device *pdev)
+{
+	int err = 0;
+	int gpio;
+
+	if (!pdev->dev.of_node)
+		return 0;
+
+	gpio = of_get_named_gpio(pdev->dev.of_node, "nvidia,vbus-gpio", 0);
+	if (!gpio_is_valid(gpio))
+		return 0;
+
+	err = gpio_request(gpio, "vbus_gpio");
+	if (err) {
+		dev_err(&pdev->dev, "can't request vbus gpio %d", gpio);
+		return err;
+	}
+	err = gpio_direction_output(gpio, 1);
+	if (err) {
+		dev_err(&pdev->dev, "can't enable vbus\n");
+		return err;
+	}
+	gpio_set_value(gpio, 1);
+
+	return err;
+}
+
+static u64 tegra_ehci_dma_mask = DMA_BIT_MASK(32);
+
 static int tegra_ehci_probe(struct platform_device *pdev)
 {
 	struct resource *res;
@@ -590,6 +624,15 @@ static int tegra_ehci_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
+	/* Right now device-tree probed devices don't get dma_mask set.
+	 * Since shared usb code relies on it, set it here for now.
+	 * Once we have dma capability bindings this can go away.
+	 */
+	if (!pdev->dev.dma_mask)
+		pdev->dev.dma_mask = &tegra_ehci_dma_mask;
+
+	setup_vbus_gpio(pdev);
+
 	tegra = kzalloc(sizeof(struct tegra_ehci_hcd), GFP_KERNEL);
 	if (!tegra)
 		return -ENOMEM;
@@ -640,6 +683,28 @@ static int tegra_ehci_probe(struct platform_device *pdev)
 		goto fail_io;
 	}
 
+	/* This is pretty ugly and needs to be fixed when we do only
+	 * device-tree probing. Old code relies on the platform_device
+	 * numbering that we lack for device-tree-instantiated devices.
+	 */
+	if (instance < 0) {
+		switch (res->start) {
+		case TEGRA_USB_BASE:
+			instance = 0;
+			break;
+		case TEGRA_USB2_BASE:
+			instance = 1;
+			break;
+		case TEGRA_USB3_BASE:
+			instance = 2;
+			break;
+		default:
+			err = -ENODEV;
+			dev_err(&pdev->dev, "unknown usb instance\n");
+			goto fail_phy;
+		}
+	}
+
 	tegra->phy = tegra_usb_phy_open(instance, hcd->regs, pdata->phy_config,
 						TEGRA_USB_PHY_MODE_HOST);
 	if (IS_ERR(tegra->phy)) {
@@ -773,6 +838,11 @@ static void tegra_ehci_hcd_shutdown(struct platform_device *pdev)
 		hcd->driver->shutdown(hcd);
 }
 
+static struct of_device_id tegra_ehci_of_match[] __devinitdata = {
+	{ .compatible = "nvidia,tegra20-ehci", },
+	{ },
+};
+
 static struct platform_driver tegra_ehci_driver = {
 	.probe		= tegra_ehci_probe,
 	.remove		= tegra_ehci_remove,
@@ -783,5 +853,6 @@ static struct platform_driver tegra_ehci_driver = {
 	.shutdown	= tegra_ehci_hcd_shutdown,
 	.driver		= {
 		.name	= "tegra-ehci",
+		.of_match_table = tegra_ehci_of_match,
 	}
 };
diff --git a/drivers/usb/host/ehci-vt8500.c b/drivers/usb/host/ehci-vt8500.c
index 54d1ab8aec49..c1eda73916cd 100644
--- a/drivers/usb/host/ehci-vt8500.c
+++ b/drivers/usb/host/ehci-vt8500.c
@@ -132,6 +132,8 @@ static int vt8500_ehci_drv_probe(struct platform_device *pdev)
 
 	ehci_port_power(ehci, 1);
 
+	ehci_reset(ehci);
+
 	ret = usb_add_hcd(hcd, pdev->resource[1].start,
 			  IRQF_SHARED);
 	if (ret == 0) {
diff --git a/drivers/usb/host/ehci-w90x900.c b/drivers/usb/host/ehci-w90x900.c
index d661cf7de140..3d2e26cbb34c 100644
--- a/drivers/usb/host/ehci-w90x900.c
+++ b/drivers/usb/host/ehci-w90x900.c
@@ -78,6 +78,8 @@ static int __devinit usb_w90x900_probe(const struct hc_driver *driver,
 	if (irq < 0)
 		goto err4;
 
+	ehci_reset(ehci);
+
 	retval = usb_add_hcd(hcd, irq, IRQF_SHARED);
 	if (retval != 0)
 		goto err4;
diff --git a/drivers/usb/host/ehci-xls.c b/drivers/usb/host/ehci-xls.c
index b4fb511d24bc..72f08196f8cd 100644
--- a/drivers/usb/host/ehci-xls.c
+++ b/drivers/usb/host/ehci-xls.c
@@ -69,7 +69,7 @@ int ehci_xls_probe_internal(const struct hc_driver *driver,
 	}
 
 	hcd->rsrc_start = res->start;
-	hcd->rsrc_len = res->end - res->start + 1;
+	hcd->rsrc_len = resource_size(res);
 
 	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len,
 				driver->description)) {
diff --git a/drivers/usb/host/fhci-hcd.c b/drivers/usb/host/fhci-hcd.c
index 4ed6d19f2a54..d2623747b489 100644
--- a/drivers/usb/host/fhci-hcd.c
+++ b/drivers/usb/host/fhci-hcd.c
@@ -824,17 +824,7 @@ static struct platform_driver of_fhci_driver = {
 	.remove		= __devexit_p(of_fhci_remove),
 };
 
-static int __init fhci_module_init(void)
-{
-	return platform_driver_register(&of_fhci_driver);
-}
-module_init(fhci_module_init);
-
-static void __exit fhci_module_exit(void)
-{
-	platform_driver_unregister(&of_fhci_driver);
-}
-module_exit(fhci_module_exit);
+module_platform_driver(of_fhci_driver);
 
 MODULE_DESCRIPTION("USB Freescale Host Controller Interface Driver");
 MODULE_AUTHOR("Shlomi Gridish <gridish@freescale.com>, "
diff --git a/drivers/usb/host/fsl-mph-dr-of.c b/drivers/usb/host/fsl-mph-dr-of.c
index 9037035ad1e4..7916e56a725e 100644
--- a/drivers/usb/host/fsl-mph-dr-of.c
+++ b/drivers/usb/host/fsl-mph-dr-of.c
@@ -297,17 +297,7 @@ static struct platform_driver fsl_usb2_mph_dr_driver = {
 	.remove	= __devexit_p(fsl_usb2_mph_dr_of_remove),
 };
 
-static int __init fsl_usb2_mph_dr_init(void)
-{
-	return platform_driver_register(&fsl_usb2_mph_dr_driver);
-}
-module_init(fsl_usb2_mph_dr_init);
-
-static void __exit fsl_usb2_mph_dr_exit(void)
-{
-	platform_driver_unregister(&fsl_usb2_mph_dr_driver);
-}
-module_exit(fsl_usb2_mph_dr_exit);
+module_platform_driver(fsl_usb2_mph_dr_driver);
 
 MODULE_DESCRIPTION("FSL MPH DR OF devices driver");
 MODULE_AUTHOR("Anatolij Gustschin <agust@denx.de>");
diff --git a/drivers/usb/host/hwa-hc.c b/drivers/usb/host/hwa-hc.c
index 43b3ca48d753..104730dabd2d 100644
--- a/drivers/usb/host/hwa-hc.c
+++ b/drivers/usb/host/hwa-hc.c
@@ -776,7 +776,6 @@ static int hwahc_probe(struct usb_interface *usb_iface,
 		goto error_alloc;
 	}
 	usb_hcd->wireless = 1;
-	set_bit(HCD_FLAG_SAW_IRQ, &usb_hcd->flags);
 	wusbhc = usb_hcd_to_wusbhc(usb_hcd);
 	hwahc = container_of(wusbhc, struct hwahc, wusbhc);
 	hwahc_init(hwahc);
diff --git a/drivers/usb/host/imx21-hcd.c b/drivers/usb/host/imx21-hcd.c
index dbf0f156ed9e..ff471c1c165e 100644
--- a/drivers/usb/host/imx21-hcd.c
+++ b/drivers/usb/host/imx21-hcd.c
@@ -1924,18 +1924,7 @@ static struct platform_driver imx21_hcd_driver = {
 	.resume = NULL,
 };
 
-static int __init imx21_hcd_init(void)
-{
-	return platform_driver_register(&imx21_hcd_driver);
-}
-
-static void __exit imx21_hcd_cleanup(void)
-{
-	platform_driver_unregister(&imx21_hcd_driver);
-}
-
-module_init(imx21_hcd_init);
-module_exit(imx21_hcd_cleanup);
+module_platform_driver(imx21_hcd_driver);
 
 MODULE_DESCRIPTION("i.MX21 USB Host controller");
 MODULE_AUTHOR("Martin Fuzzey");
diff --git a/drivers/usb/host/isp1760-hcd.c b/drivers/usb/host/isp1760-hcd.c
index 27dfab80ed8f..fc72d44bf787 100644
--- a/drivers/usb/host/isp1760-hcd.c
+++ b/drivers/usb/host/isp1760-hcd.c
@@ -32,6 +32,13 @@ static struct kmem_cache *qtd_cachep;
 static struct kmem_cache *qh_cachep;
 static struct kmem_cache *urb_listitem_cachep;
 
+enum queue_head_types {
+	QH_CONTROL,
+	QH_BULK,
+	QH_INTERRUPT,
+	QH_END
+};
+
 struct isp1760_hcd {
 	u32 hcs_params;
 	spinlock_t		lock;
@@ -40,7 +47,7 @@ struct isp1760_hcd {
 	struct slotinfo		int_slots[32];
 	int			int_done_map;
 	struct memory_chunk memory_pool[BLOCKS];
-	struct list_head	controlqhs, bulkqhs, interruptqhs;
+	struct list_head	qh_list[QH_END];
 
 	/* periodic schedule support */
 #define	DEFAULT_I_TDPS		1024
@@ -406,12 +413,12 @@ static int priv_init(struct usb_hcd *hcd)
 {
 	struct isp1760_hcd		*priv = hcd_to_priv(hcd);
 	u32			hcc_params;
+	int i;
 
 	spin_lock_init(&priv->lock);
 
-	INIT_LIST_HEAD(&priv->interruptqhs);
-	INIT_LIST_HEAD(&priv->controlqhs);
-	INIT_LIST_HEAD(&priv->bulkqhs);
+	for (i = 0; i < QH_END; i++)
+		INIT_LIST_HEAD(&priv->qh_list[i]);
 
 	/*
 	 * hw default: 1K periodic list heads, one per frame.
@@ -930,9 +937,9 @@ void schedule_ptds(struct usb_hcd *hcd)
 	struct isp1760_hcd *priv;
 	struct isp1760_qh *qh, *qh_next;
 	struct list_head *ep_queue;
-	struct usb_host_endpoint *ep;
 	LIST_HEAD(urb_list);
 	struct urb_listitem *urb_listitem, *urb_listitem_next;
+	int i;
 
 	if (!hcd) {
 		WARN_ON(1);
@@ -944,28 +951,13 @@ void schedule_ptds(struct usb_hcd *hcd)
 	/*
 	 * check finished/retired xfers, transfer payloads, call urb_done()
 	 */
-	ep_queue = &priv->interruptqhs;
-	while (ep_queue) {
+	for (i = 0; i < QH_END; i++) {
+		ep_queue = &priv->qh_list[i];
 		list_for_each_entry_safe(qh, qh_next, ep_queue, qh_list) {
-			ep = list_entry(qh->qtd_list.next, struct isp1760_qtd,
-							qtd_list)->urb->ep;
 			collect_qtds(hcd, qh, &urb_list);
-			if (list_empty(&qh->qtd_list)) {
+			if (list_empty(&qh->qtd_list))
 				list_del(&qh->qh_list);
-				if (ep->hcpriv == NULL) {
-					/* Endpoint has been disabled, so we
-					can free the associated queue head. */
-					qh_free(qh);
-				}
-			}
 		}
-
-		if (ep_queue == &priv->interruptqhs)
-			ep_queue = &priv->controlqhs;
-		else if (ep_queue == &priv->controlqhs)
-			ep_queue = &priv->bulkqhs;
-		else
-			ep_queue = NULL;
 	}
 
 	list_for_each_entry_safe(urb_listitem, urb_listitem_next, &urb_list,
@@ -998,17 +990,10 @@ void schedule_ptds(struct usb_hcd *hcd)
 	 *
 	 * I'm sure this scheme could be improved upon!
 	 */
-	ep_queue = &priv->controlqhs;
-	while (ep_queue) {
+	for (i = 0; i < QH_END; i++) {
+		ep_queue = &priv->qh_list[i];
 		list_for_each_entry_safe(qh, qh_next, ep_queue, qh_list)
 			enqueue_qtds(hcd, qh);
-
-		if (ep_queue == &priv->controlqhs)
-			ep_queue = &priv->interruptqhs;
-		else if (ep_queue == &priv->interruptqhs)
-			ep_queue = &priv->bulkqhs;
-		else
-			ep_queue = NULL;
 	}
 }
 
@@ -1543,16 +1528,16 @@ static int isp1760_urb_enqueue(struct usb_hcd *hcd, struct urb *urb,
 
 	switch (usb_pipetype(urb->pipe)) {
 	case PIPE_CONTROL:
-		ep_queue = &priv->controlqhs;
+		ep_queue = &priv->qh_list[QH_CONTROL];
 		break;
 	case PIPE_BULK:
-		ep_queue = &priv->bulkqhs;
+		ep_queue = &priv->qh_list[QH_BULK];
 		break;
 	case PIPE_INTERRUPT:
 		if (urb->interval < 0)
 			return -EINVAL;
 		/* FIXME: Check bandwidth  */
-		ep_queue = &priv->interruptqhs;
+		ep_queue = &priv->qh_list[QH_INTERRUPT];
 		break;
 	case PIPE_ISOCHRONOUS:
 		dev_err(hcd->self.controller, "%s: isochronous USB packets "
@@ -1714,8 +1699,8 @@ static void isp1760_endpoint_disable(struct usb_hcd *hcd,
 {
 	struct isp1760_hcd *priv = hcd_to_priv(hcd);
 	unsigned long spinflags;
-	struct isp1760_qh *qh;
-	struct isp1760_qtd *qtd;
+	struct isp1760_qh *qh, *qh_iter;
+	int i;
 
 	spin_lock_irqsave(&priv->lock, spinflags);
 
@@ -1723,14 +1708,17 @@ static void isp1760_endpoint_disable(struct usb_hcd *hcd,
 	if (!qh)
 		goto out;
 
-	list_for_each_entry(qtd, &qh->qtd_list, qtd_list)
-		if (qtd->status != QTD_RETIRE) {
-			dequeue_urb_from_qtd(hcd, qh, qtd);
-			qtd->urb->status = -ECONNRESET;
-		}
+	WARN_ON(!list_empty(&qh->qtd_list));
 
+	for (i = 0; i < QH_END; i++)
+		list_for_each_entry(qh_iter, &priv->qh_list[i], qh_list)
+			if (qh_iter == qh) {
+				list_del(&qh_iter->qh_list);
+				i = QH_END;
+				break;
+			}
+	qh_free(qh);
 	ep->hcpriv = NULL;
-	/* Cannot free qh here since it will be parsed by schedule_ptds() */
 
 	schedule_ptds(hcd);
 
diff --git a/drivers/usb/host/isp1760-if.c b/drivers/usb/host/isp1760-if.c
index 2ac4ac2e4ef9..4592dc17a9f9 100644
--- a/drivers/usb/host/isp1760-if.c
+++ b/drivers/usb/host/isp1760-if.c
@@ -47,23 +47,27 @@ static int of_isp1760_probe(struct platform_device *dev)
 	int virq;
 	resource_size_t res_len;
 	int ret;
-	const unsigned int *prop;
 	unsigned int devflags = 0;
 	enum of_gpio_flags gpio_flags;
+	u32 bus_width = 0;
 
 	drvdata = kzalloc(sizeof(*drvdata), GFP_KERNEL);
 	if (!drvdata)
 		return -ENOMEM;
 
 	ret = of_address_to_resource(dp, 0, &memory);
-	if (ret)
-		return -ENXIO;
+	if (ret) {
+		ret = -ENXIO;
+		goto free_data;
+	}
 
 	res_len = resource_size(&memory);
 
 	res = request_mem_region(memory.start, res_len, dev_name(&dev->dev));
-	if (!res)
-		return -EBUSY;
+	if (!res) {
+		ret = -EBUSY;
+		goto free_data;
+	}
 
 	if (of_irq_map_one(dp, 0, &oirq)) {
 		ret = -ENODEV;
@@ -77,8 +81,8 @@ static int of_isp1760_probe(struct platform_device *dev)
 		devflags |= ISP1760_FLAG_ISP1761;
 
 	/* Some systems wire up only 16 of the 32 data lines */
-	prop = of_get_property(dp, "bus-width", NULL);
-	if (prop && *prop == 16)
+	of_property_read_u32(dp, "bus-width", &bus_width);
+	if (bus_width == 16)
 		devflags |= ISP1760_FLAG_BUS_WIDTH_16;
 
 	if (of_get_property(dp, "port1-otg", NULL) != NULL)
@@ -125,6 +129,7 @@ free_gpio:
 		gpio_free(drvdata->rst_gpio);
 release_reg:
 	release_mem_region(memory.start, res_len);
+free_data:
 	kfree(drvdata);
 	return ret;
 }
diff --git a/drivers/usb/host/ohci-at91.c b/drivers/usb/host/ohci-at91.c
index 95a9fec38e89..5df0b0e3392b 100644
--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -223,7 +223,7 @@ static void ohci_at91_usb_set_power(struct at91_usbh_data *pdata, int port, int
 	if (port < 0 || port >= 2)
 		return;
 
-	if (pdata->vbus_pin[port] <= 0)
+	if (!gpio_is_valid(pdata->vbus_pin[port]))
 		return;
 
 	gpio_set_value(pdata->vbus_pin[port], !pdata->vbus_pin_inverted ^ enable);
@@ -234,7 +234,7 @@ static int ohci_at91_usb_get_power(struct at91_usbh_data *pdata, int port)
 	if (port < 0 || port >= 2)
 		return -EINVAL;
 
-	if (pdata->vbus_pin[port] <= 0)
+	if (!gpio_is_valid(pdata->vbus_pin[port]))
 		return -EINVAL;
 
 	return gpio_get_value(pdata->vbus_pin[port]) ^ !pdata->vbus_pin_inverted;
@@ -465,7 +465,7 @@ static int ohci_hcd_at91_drv_probe(struct platform_device *pdev)
 
 	if (pdata) {
 		for (i = 0; i < ARRAY_SIZE(pdata->vbus_pin); i++) {
-			if (pdata->vbus_pin[i] <= 0)
+			if (!gpio_is_valid(pdata->vbus_pin[i]))
 				continue;
 			gpio_request(pdata->vbus_pin[i], "ohci_vbus");
 			ohci_at91_usb_set_power(pdata, i, 1);
@@ -474,7 +474,7 @@ static int ohci_hcd_at91_drv_probe(struct platform_device *pdev)
 		for (i = 0; i < ARRAY_SIZE(pdata->overcurrent_pin); i++) {
 			int ret;
 
-			if (pdata->overcurrent_pin[i] <= 0)
+			if (!gpio_is_valid(pdata->overcurrent_pin[i]))
 				continue;
 			gpio_request(pdata->overcurrent_pin[i], "ohci_overcurrent");
 
@@ -499,14 +499,14 @@ static int ohci_hcd_at91_drv_remove(struct platform_device *pdev)
 
 	if (pdata) {
 		for (i = 0; i < ARRAY_SIZE(pdata->vbus_pin); i++) {
-			if (pdata->vbus_pin[i] <= 0)
+			if (!gpio_is_valid(pdata->vbus_pin[i]))
 				continue;
 			ohci_at91_usb_set_power(pdata, i, 0);
 			gpio_free(pdata->vbus_pin[i]);
 		}
 
 		for (i = 0; i < ARRAY_SIZE(pdata->overcurrent_pin); i++) {
-			if (pdata->overcurrent_pin[i] <= 0)
+			if (!gpio_is_valid(pdata->overcurrent_pin[i]))
 				continue;
 			free_irq(gpio_to_irq(pdata->overcurrent_pin[i]), pdev);
 			gpio_free(pdata->overcurrent_pin[i]);
diff --git a/drivers/usb/host/ohci-au1xxx.c b/drivers/usb/host/ohci-au1xxx.c
index 9b66df8278f3..40d886adff53 100644
--- a/drivers/usb/host/ohci-au1xxx.c
+++ b/drivers/usb/host/ohci-au1xxx.c
@@ -173,12 +173,9 @@ static int ohci_hcd_au1xxx_drv_suspend(struct device *dev)
 	 * mark HW unaccessible, bail out if RH has been resumed. Use
 	 * the spinlock to properly synchronize with possible pending
 	 * RH suspend or resume activity.
-	 *
-	 * This is still racy as hcd->state is manipulated outside of
-	 * any locks =P But that will be a different fix.
 	 */
 	spin_lock_irqsave(&ohci->lock, flags);
-	if (hcd->state != HC_STATE_SUSPENDED) {
+	if (ohci->rh_state != OHCI_RH_SUSPENDED) {
 		rc = -EINVAL;
 		goto bail;
 	}
diff --git a/drivers/usb/host/ohci-dbg.c b/drivers/usb/host/ohci-dbg.c
index d7d34492934a..5179fcd73d8a 100644
--- a/drivers/usb/host/ohci-dbg.c
+++ b/drivers/usb/host/ohci-dbg.c
@@ -127,6 +127,19 @@ static char *hcfs2string (int state)
 	return "?";
 }
 
+static const char *rh_state_string(struct ohci_hcd *ohci)
+{
+	switch (ohci->rh_state) {
+	case OHCI_RH_HALTED:
+		return "halted";
+	case OHCI_RH_SUSPENDED:
+		return "suspended";
+	case OHCI_RH_RUNNING:
+		return "running";
+	}
+	return "?";
+}
+
 // dump control and status registers
 static void
 ohci_dump_status (struct ohci_hcd *controller, char **next, unsigned *size)
@@ -136,9 +149,10 @@ ohci_dump_status (struct ohci_hcd *controller, char **next, unsigned *size)
 
 	temp = ohci_readl (controller, &regs->revision) & 0xff;
 	ohci_dbg_sw (controller, next, size,
-		"OHCI %d.%d, %s legacy support registers\n",
+		"OHCI %d.%d, %s legacy support registers, rh state %s\n",
 		0x03 & (temp >> 4), (temp & 0x0f),
-		(temp & 0x0100) ? "with" : "NO");
+		(temp & 0x0100) ? "with" : "NO",
+		rh_state_string(controller));
 
 	temp = ohci_readl (controller, &regs->control);
 	ohci_dbg_sw (controller, next, size,
diff --git a/drivers/usb/host/ohci-ep93xx.c b/drivers/usb/host/ohci-ep93xx.c
index dc45d489d00e..3d63574d2c7e 100644
--- a/drivers/usb/host/ohci-ep93xx.c
+++ b/drivers/usb/host/ohci-ep93xx.c
@@ -179,8 +179,6 @@ static int ohci_hcd_ep93xx_drv_suspend(struct platform_device *pdev, pm_message_
 	ohci->next_statechange = jiffies;
 
 	ep93xx_stop_hc(&pdev->dev);
-	hcd->state = HC_STATE_SUSPENDED;
-
 	return 0;
 }
 
diff --git a/drivers/usb/host/ohci-exynos.c b/drivers/usb/host/ohci-exynos.c
new file mode 100644
index 000000000000..55aa35aa3d7b
--- /dev/null
+++ b/drivers/usb/host/ohci-exynos.c
@@ -0,0 +1,274 @@
+/*
+ * SAMSUNG EXYNOS USB HOST OHCI Controller
+ *
+ * Copyright (C) 2011 Samsung Electronics Co.Ltd
+ * Author: Jingoo Han <jg1.han@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ *
+ */
+
+#include <linux/clk.h>
+#include <linux/platform_device.h>
+#include <mach/ohci.h>
+#include <plat/usb-phy.h>
+
+struct exynos_ohci_hcd {
+	struct device *dev;
+	struct usb_hcd *hcd;
+	struct clk *clk;
+};
+
+static int ohci_exynos_start(struct usb_hcd *hcd)
+{
+	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
+	int ret;
+
+	ohci_dbg(ohci, "ohci_exynos_start, ohci:%p", ohci);
+
+	ret = ohci_init(ohci);
+	if (ret < 0)
+		return ret;
+
+	ret = ohci_run(ohci);
+	if (ret < 0) {
+		err("can't start %s", hcd->self.bus_name);
+		ohci_stop(hcd);
+		return ret;
+	}
+
+	return 0;
+}
+
+static const struct hc_driver exynos_ohci_hc_driver = {
+	.description		= hcd_name,
+	.product_desc		= "EXYNOS OHCI Host Controller",
+	.hcd_priv_size		= sizeof(struct ohci_hcd),
+
+	.irq			= ohci_irq,
+	.flags			= HCD_MEMORY|HCD_USB11,
+
+	.start			= ohci_exynos_start,
+	.stop			= ohci_stop,
+	.shutdown		= ohci_shutdown,
+
+	.get_frame_number	= ohci_get_frame,
+
+	.urb_enqueue		= ohci_urb_enqueue,
+	.urb_dequeue		= ohci_urb_dequeue,
+	.endpoint_disable	= ohci_endpoint_disable,
+
+	.hub_status_data	= ohci_hub_status_data,
+	.hub_control		= ohci_hub_control,
+#ifdef	CONFIG_PM
+	.bus_suspend		= ohci_bus_suspend,
+	.bus_resume		= ohci_bus_resume,
+#endif
+	.start_port_reset	= ohci_start_port_reset,
+};
+
+static int __devinit exynos_ohci_probe(struct platform_device *pdev)
+{
+	struct exynos4_ohci_platdata *pdata;
+	struct exynos_ohci_hcd *exynos_ohci;
+	struct usb_hcd *hcd;
+	struct ohci_hcd *ohci;
+	struct resource *res;
+	int irq;
+	int err;
+
+	pdata = pdev->dev.platform_data;
+	if (!pdata) {
+		dev_err(&pdev->dev, "No platform data defined\n");
+		return -EINVAL;
+	}
+
+	exynos_ohci = kzalloc(sizeof(struct exynos_ohci_hcd), GFP_KERNEL);
+	if (!exynos_ohci)
+		return -ENOMEM;
+
+	exynos_ohci->dev = &pdev->dev;
+
+	hcd = usb_create_hcd(&exynos_ohci_hc_driver, &pdev->dev,
+					dev_name(&pdev->dev));
+	if (!hcd) {
+		dev_err(&pdev->dev, "Unable to create HCD\n");
+		err = -ENOMEM;
+		goto fail_hcd;
+	}
+
+	exynos_ohci->hcd = hcd;
+	exynos_ohci->clk = clk_get(&pdev->dev, "usbhost");
+
+	if (IS_ERR(exynos_ohci->clk)) {
+		dev_err(&pdev->dev, "Failed to get usbhost clock\n");
+		err = PTR_ERR(exynos_ohci->clk);
+		goto fail_clk;
+	}
+
+	err = clk_enable(exynos_ohci->clk);
+	if (err)
+		goto fail_clken;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(&pdev->dev, "Failed to get I/O memory\n");
+		err = -ENXIO;
+		goto fail_io;
+	}
+
+	hcd->rsrc_start = res->start;
+	hcd->rsrc_len = resource_size(res);
+	hcd->regs = ioremap(res->start, resource_size(res));
+	if (!hcd->regs) {
+		dev_err(&pdev->dev, "Failed to remap I/O memory\n");
+		err = -ENOMEM;
+		goto fail_io;
+	}
+
+	irq = platform_get_irq(pdev, 0);
+	if (!irq) {
+		dev_err(&pdev->dev, "Failed to get IRQ\n");
+		err = -ENODEV;
+		goto fail;
+	}
+
+	if (pdata->phy_init)
+		pdata->phy_init(pdev, S5P_USB_PHY_HOST);
+
+	ohci = hcd_to_ohci(hcd);
+	ohci_hcd_init(ohci);
+
+	err = usb_add_hcd(hcd, irq, IRQF_SHARED);
+	if (err) {
+		dev_err(&pdev->dev, "Failed to add USB HCD\n");
+		goto fail;
+	}
+
+	platform_set_drvdata(pdev, exynos_ohci);
+
+	return 0;
+
+fail:
+	iounmap(hcd->regs);
+fail_io:
+	clk_disable(exynos_ohci->clk);
+fail_clken:
+	clk_put(exynos_ohci->clk);
+fail_clk:
+	usb_put_hcd(hcd);
+fail_hcd:
+	kfree(exynos_ohci);
+	return err;
+}
+
+static int __devexit exynos_ohci_remove(struct platform_device *pdev)
+{
+	struct exynos4_ohci_platdata *pdata = pdev->dev.platform_data;
+	struct exynos_ohci_hcd *exynos_ohci = platform_get_drvdata(pdev);
+	struct usb_hcd *hcd = exynos_ohci->hcd;
+
+	usb_remove_hcd(hcd);
+
+	if (pdata && pdata->phy_exit)
+		pdata->phy_exit(pdev, S5P_USB_PHY_HOST);
+
+	iounmap(hcd->regs);
+
+	clk_disable(exynos_ohci->clk);
+	clk_put(exynos_ohci->clk);
+
+	usb_put_hcd(hcd);
+	kfree(exynos_ohci);
+
+	return 0;
+}
+
+static void exynos_ohci_shutdown(struct platform_device *pdev)
+{
+	struct exynos_ohci_hcd *exynos_ohci = platform_get_drvdata(pdev);
+	struct usb_hcd *hcd = exynos_ohci->hcd;
+
+	if (hcd->driver->shutdown)
+		hcd->driver->shutdown(hcd);
+}
+
+#ifdef CONFIG_PM
+static int exynos_ohci_suspend(struct device *dev)
+{
+	struct exynos_ohci_hcd *exynos_ohci = dev_get_drvdata(dev);
+	struct usb_hcd *hcd = exynos_ohci->hcd;
+	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
+	struct platform_device *pdev = to_platform_device(dev);
+	struct exynos4_ohci_platdata *pdata = pdev->dev.platform_data;
+	unsigned long flags;
+	int rc = 0;
+
+	/*
+	 * Root hub was already suspended. Disable irq emission and
+	 * mark HW unaccessible, bail out if RH has been resumed. Use
+	 * the spinlock to properly synchronize with possible pending
+	 * RH suspend or resume activity.
+	 *
+	 * This is still racy as hcd->state is manipulated outside of
+	 * any locks =P But that will be a different fix.
+	 */
+	spin_lock_irqsave(&ohci->lock, flags);
+	if (hcd->state != HC_STATE_SUSPENDED && hcd->state != HC_STATE_HALT) {
+		rc = -EINVAL;
+		goto fail;
+	}
+
+	clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
+
+	if (pdata && pdata->phy_exit)
+		pdata->phy_exit(pdev, S5P_USB_PHY_HOST);
+fail:
+	spin_unlock_irqrestore(&ohci->lock, flags);
+
+	return rc;
+}
+
+static int exynos_ohci_resume(struct device *dev)
+{
+	struct exynos_ohci_hcd *exynos_ohci = dev_get_drvdata(dev);
+	struct usb_hcd *hcd = exynos_ohci->hcd;
+	struct platform_device *pdev = to_platform_device(dev);
+	struct exynos4_ohci_platdata *pdata = pdev->dev.platform_data;
+
+	if (pdata && pdata->phy_init)
+		pdata->phy_init(pdev, S5P_USB_PHY_HOST);
+
+	/* Mark hardware accessible again as we are out of D3 state by now */
+	set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
+
+	ohci_finish_controller_resume(hcd);
+
+	return 0;
+}
+#else
+#define exynos_ohci_suspend	NULL
+#define exynos_ohci_resume	NULL
+#endif
+
+static const struct dev_pm_ops exynos_ohci_pm_ops = {
+	.suspend	= exynos_ohci_suspend,
+	.resume		= exynos_ohci_resume,
+};
+
+static struct platform_driver exynos_ohci_driver = {
+	.probe		= exynos_ohci_probe,
+	.remove		= __devexit_p(exynos_ohci_remove),
+	.shutdown	= exynos_ohci_shutdown,
+	.driver = {
+		.name	= "exynos-ohci",
+		.owner	= THIS_MODULE,
+		.pm	= &exynos_ohci_pm_ops,
+	}
+};
+
+MODULE_ALIAS("platform:exynos-ohci");
+MODULE_AUTHOR("Jingoo Han <jg1.han@samsung.com>");
diff --git a/drivers/usb/host/ohci-hcd.c b/drivers/usb/host/ohci-hcd.c
index b2639191549e..5f5a63241436 100644
--- a/drivers/usb/host/ohci-hcd.c
+++ b/drivers/usb/host/ohci-hcd.c
@@ -209,7 +209,7 @@ static int ohci_urb_enqueue (
 		retval = -ENODEV;
 		goto fail;
 	}
-	if (!HC_IS_RUNNING(hcd->state)) {
+	if (ohci->rh_state != OHCI_RH_RUNNING) {
 		retval = -ENODEV;
 		goto fail;
 	}
@@ -274,7 +274,7 @@ static int ohci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
 	rc = usb_hcd_check_unlink_urb(hcd, urb, status);
 	if (rc) {
 		;	/* Do nothing */
-	} else if (HC_IS_RUNNING(hcd->state)) {
+	} else if (ohci->rh_state == OHCI_RH_RUNNING) {
 		urb_priv_t  *urb_priv;
 
 		/* Unless an IRQ completed the unlink while it was being
@@ -321,7 +321,7 @@ ohci_endpoint_disable (struct usb_hcd *hcd, struct usb_host_endpoint *ep)
 rescan:
 	spin_lock_irqsave (&ohci->lock, flags);
 
-	if (!HC_IS_RUNNING (hcd->state)) {
+	if (ohci->rh_state != OHCI_RH_RUNNING) {
 sanitize:
 		ed->state = ED_IDLE;
 		if (quirk_zfmicro(ohci) && ed->type == PIPE_INTERRUPT)
@@ -377,6 +377,7 @@ static void ohci_usb_reset (struct ohci_hcd *ohci)
 	ohci->hc_control = ohci_readl (ohci, &ohci->regs->control);
 	ohci->hc_control &= OHCI_CTRL_RWC;
 	ohci_writel (ohci, ohci->hc_control, &ohci->regs->control);
+	ohci->rh_state = OHCI_RH_HALTED;
 }
 
 /* ohci_shutdown forcibly disables IRQs and DMA, helping kexec and
@@ -500,7 +501,7 @@ static int ohci_init (struct ohci_hcd *ohci)
 	if (distrust_firmware)
 		ohci->flags |= OHCI_QUIRK_HUB_POWER;
 
-	disable (ohci);
+	ohci->rh_state = OHCI_RH_HALTED;
 	ohci->regs = hcd->regs;
 
 	/* REVISIT this BIOS handshake is now moved into PCI "quirks", and
@@ -575,7 +576,7 @@ static int ohci_run (struct ohci_hcd *ohci)
 	int			first = ohci->fminterval == 0;
 	struct usb_hcd		*hcd = ohci_to_hcd(ohci);
 
-	disable (ohci);
+	ohci->rh_state = OHCI_RH_HALTED;
 
 	/* boot firmware should have set this up (5.1.1.3.1) */
 	if (first) {
@@ -688,7 +689,7 @@ retry:
 	ohci->hc_control &= OHCI_CTRL_RWC;
 	ohci->hc_control |= OHCI_CONTROL_INIT | OHCI_USB_OPER;
 	ohci_writel (ohci, ohci->hc_control, &ohci->regs->control);
-	hcd->state = HC_STATE_RUNNING;
+	ohci->rh_state = OHCI_RH_RUNNING;
 
 	/* wake on ConnectStatusChange, matching external hubs */
 	ohci_writel (ohci, RH_HS_DRWE, &ohci->regs->roothub.status);
@@ -725,7 +726,6 @@ retry:
 
 	// POTPGT delay is bits 24-31, in 2 ms units.
 	mdelay ((val >> 23) & 0x1fe);
-	hcd->state = HC_STATE_RUNNING;
 
 	if (quirk_zfmicro(ohci)) {
 		/* Create timer to watch for bad queue state on ZF Micro */
@@ -761,7 +761,7 @@ static irqreturn_t ohci_irq (struct usb_hcd *hcd)
 	 * of dead, unclocked, or unplugged (CardBus...) devices
 	 */
 	if (ints == ~(u32)0) {
-		disable (ohci);
+		ohci->rh_state = OHCI_RH_HALTED;
 		ohci_dbg (ohci, "device removed!\n");
 		usb_hc_died(hcd);
 		return IRQ_HANDLED;
@@ -771,7 +771,7 @@ static irqreturn_t ohci_irq (struct usb_hcd *hcd)
 	ints &= ohci_readl(ohci, &regs->intrenable);
 
 	/* interrupt for some other device? */
-	if (ints == 0 || unlikely(hcd->state == HC_STATE_HALT))
+	if (ints == 0 || unlikely(ohci->rh_state == OHCI_RH_HALTED))
 		return IRQ_NOTMINE;
 
 	if (ints & OHCI_INTR_UE) {
@@ -786,8 +786,8 @@ static irqreturn_t ohci_irq (struct usb_hcd *hcd)
 
 			schedule_work (&ohci->nec_work);
 		} else {
-			disable (ohci);
 			ohci_err (ohci, "OHCI Unrecoverable Error, disabled\n");
+			ohci->rh_state = OHCI_RH_HALTED;
 			usb_hc_died(hcd);
 		}
 
@@ -871,11 +871,11 @@ static irqreturn_t ohci_irq (struct usb_hcd *hcd)
 	if ((ints & OHCI_INTR_SF) != 0
 			&& !ohci->ed_rm_list
 			&& !ohci->ed_to_check
-			&& HC_IS_RUNNING(hcd->state))
+			&& ohci->rh_state == OHCI_RH_RUNNING)
 		ohci_writel (ohci, OHCI_INTR_SF, &regs->intrdisable);
 	spin_unlock (&ohci->lock);
 
-	if (HC_IS_RUNNING(hcd->state)) {
+	if (ohci->rh_state == OHCI_RH_RUNNING) {
 		ohci_writel (ohci, ints, &regs->intrstatus);
 		ohci_writel (ohci, OHCI_INTR_MIE, &regs->intrenable);
 		// flush those writes
@@ -929,7 +929,7 @@ static int ohci_restart (struct ohci_hcd *ohci)
 	struct urb_priv *priv;
 
 	spin_lock_irq(&ohci->lock);
-	disable (ohci);
+	ohci->rh_state = OHCI_RH_HALTED;
 
 	/* Recycle any "live" eds/tds (and urbs). */
 	if (!list_empty (&ohci->pending))
@@ -1005,6 +1005,11 @@ MODULE_LICENSE ("GPL");
 #define PLATFORM_DRIVER		ohci_hcd_s3c2410_driver
 #endif
 
+#ifdef CONFIG_USB_OHCI_EXYNOS
+#include "ohci-exynos.c"
+#define PLATFORM_DRIVER		exynos_ohci_driver
+#endif
+
 #ifdef CONFIG_USB_OHCI_HCD_OMAP1
 #include "ohci-omap.c"
 #define OMAP1_PLATFORM_DRIVER	ohci_hcd_omap_driver
@@ -1111,7 +1116,7 @@ MODULE_LICENSE ("GPL");
 #define PLATFORM_DRIVER		ohci_hcd_ath79_driver
 #endif
 
-#ifdef CONFIG_NLM_XLR
+#ifdef CONFIG_CPU_XLR
 #include "ohci-xls.c"
 #define PLATFORM_DRIVER		ohci_xls_driver
 #endif
diff --git a/drivers/usb/host/ohci-hub.c b/drivers/usb/host/ohci-hub.c
index 2f00040fc408..836772dfabd3 100644
--- a/drivers/usb/host/ohci-hub.c
+++ b/drivers/usb/host/ohci-hub.c
@@ -111,6 +111,7 @@ __acquires(ohci->lock)
 	if (!autostop) {
 		ohci->next_statechange = jiffies + msecs_to_jiffies (5);
 		ohci->autostop = 0;
+		ohci->rh_state = OHCI_RH_SUSPENDED;
 	}
 
 done:
@@ -140,7 +141,7 @@ __acquires(ohci->lock)
 
 	if (ohci->hc_control & (OHCI_CTRL_IR | OHCI_SCHED_ENABLES)) {
 		/* this can happen after resuming a swsusp snapshot */
-		if (hcd->state == HC_STATE_RESUMING) {
+		if (ohci->rh_state != OHCI_RH_RUNNING) {
 			ohci_dbg (ohci, "BIOS/SMM active, control %03x\n",
 					ohci->hc_control);
 			status = -EBUSY;
@@ -274,6 +275,7 @@ skip_resume:
 		(void) ohci_readl (ohci, &ohci->regs->control);
 	}
 
+	ohci->rh_state = OHCI_RH_RUNNING;
 	return 0;
 }
 
@@ -336,11 +338,8 @@ static void ohci_finish_controller_resume(struct usb_hcd *hcd)
 	/* If needed, reinitialize and suspend the root hub */
 	if (need_reinit) {
 		spin_lock_irq(&ohci->lock);
-		hcd->state = HC_STATE_RESUMING;
 		ohci_rh_resume(ohci);
-		hcd->state = HC_STATE_QUIESCING;
 		ohci_rh_suspend(ohci, 0);
-		hcd->state = HC_STATE_SUSPENDED;
 		spin_unlock_irq(&ohci->lock);
 	}
 
diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c
index e4b8782cc6e2..db3968656d21 100644
--- a/drivers/usb/host/ohci-omap.c
+++ b/drivers/usb/host/ohci-omap.c
@@ -516,7 +516,6 @@ static int ohci_omap_suspend(struct platform_device *dev, pm_message_t message)
 	ohci->next_statechange = jiffies;
 
 	omap_ohci_clock_power(0);
-	ohci_to_hcd(ohci)->state = HC_STATE_SUSPENDED;
 	return 0;
 }
 
diff --git a/drivers/usb/host/ohci-omap3.c b/drivers/usb/host/ohci-omap3.c
index 516ebc4d6cc2..1b8133b6e451 100644
--- a/drivers/usb/host/ohci-omap3.c
+++ b/drivers/usb/host/ohci-omap3.c
@@ -31,6 +31,7 @@
 
 #include <linux/platform_device.h>
 #include <plat/usb.h>
+#include <linux/pm_runtime.h>
 
 /*-------------------------------------------------------------------------*/
 
@@ -134,7 +135,7 @@ static int __devinit ohci_hcd_omap3_probe(struct platform_device *pdev)
 	int			irq;
 
 	if (usb_disabled())
-		goto err_end;
+		return -ENODEV;
 
 	if (!dev->parent) {
 		dev_err(dev, "Missing parent device\n");
@@ -172,11 +173,8 @@ static int __devinit ohci_hcd_omap3_probe(struct platform_device *pdev)
 	hcd->rsrc_len = resource_size(res);
 	hcd->regs =  regs;
 
-	ret = omap_usbhs_enable(dev);
-	if (ret) {
-		dev_dbg(dev, "failed to start ohci\n");
-		goto err_end;
-	}
+	pm_runtime_enable(dev);
+	pm_runtime_get_sync(dev);
 
 	ohci_hcd_init(hcd_to_ohci(hcd));
 
@@ -189,9 +187,7 @@ static int __devinit ohci_hcd_omap3_probe(struct platform_device *pdev)
 	return 0;
 
 err_add_hcd:
-	omap_usbhs_disable(dev);
-
-err_end:
+	pm_runtime_put_sync(dev);
 	usb_put_hcd(hcd);
 
 err_io:
@@ -220,9 +216,9 @@ static int __devexit ohci_hcd_omap3_remove(struct platform_device *pdev)
 
 	iounmap(hcd->regs);
 	usb_remove_hcd(hcd);
-	omap_usbhs_disable(dev);
+	pm_runtime_put_sync(dev);
+	pm_runtime_disable(dev);
 	usb_put_hcd(hcd);
-
 	return 0;
 }
 
diff --git a/drivers/usb/host/ohci-pci.c b/drivers/usb/host/ohci-pci.c
index bc01b064585a..6109810cc2d3 100644
--- a/drivers/usb/host/ohci-pci.c
+++ b/drivers/usb/host/ohci-pci.c
@@ -308,12 +308,9 @@ static int ohci_pci_suspend(struct usb_hcd *hcd, bool do_wakeup)
 	 * mark HW unaccessible, bail out if RH has been resumed. Use
 	 * the spinlock to properly synchronize with possible pending
 	 * RH suspend or resume activity.
-	 *
-	 * This is still racy as hcd->state is manipulated outside of
-	 * any locks =P But that will be a different fix.
 	 */
 	spin_lock_irqsave (&ohci->lock, flags);
-	if (hcd->state != HC_STATE_SUSPENDED) {
+	if (ohci->rh_state != OHCI_RH_SUSPENDED) {
 		rc = -EINVAL;
 		goto bail;
 	}
diff --git a/drivers/usb/host/ohci-pxa27x.c b/drivers/usb/host/ohci-pxa27x.c
index 29dfefe1c726..6313e4439f37 100644
--- a/drivers/usb/host/ohci-pxa27x.c
+++ b/drivers/usb/host/ohci-pxa27x.c
@@ -502,8 +502,6 @@ static int ohci_hcd_pxa27x_drv_suspend(struct device *dev)
 	ohci->ohci.next_statechange = jiffies;
 
 	pxa27x_stop_hc(ohci, dev);
-	hcd->state = HC_STATE_SUSPENDED;
-
 	return 0;
 }
 
diff --git a/drivers/usb/host/ohci-q.c b/drivers/usb/host/ohci-q.c
index 15dc51ded61a..c5a1ea9145fa 100644
--- a/drivers/usb/host/ohci-q.c
+++ b/drivers/usb/host/ohci-q.c
@@ -912,7 +912,7 @@ rescan_all:
 		/* only take off EDs that the HC isn't using, accounting for
 		 * frame counter wraps and EDs with partially retired TDs
 		 */
-		if (likely (HC_IS_RUNNING(ohci_to_hcd(ohci)->state))) {
+		if (likely(ohci->rh_state == OHCI_RH_RUNNING)) {
 			if (tick_before (tick, ed->tick)) {
 skip_ed:
 				last = &ed->ed_next;
@@ -1012,7 +1012,7 @@ rescan_this:
 
 		/* but if there's work queued, reschedule */
 		if (!list_empty (&ed->td_list)) {
-			if (HC_IS_RUNNING(ohci_to_hcd(ohci)->state))
+			if (ohci->rh_state == OHCI_RH_RUNNING)
 				ed_schedule (ohci, ed);
 		}
 
@@ -1021,9 +1021,7 @@ rescan_this:
 	}
 
 	/* maybe reenable control and bulk lists */
-	if (HC_IS_RUNNING(ohci_to_hcd(ohci)->state)
-			&& ohci_to_hcd(ohci)->state != HC_STATE_QUIESCING
-			&& !ohci->ed_rm_list) {
+	if (ohci->rh_state == OHCI_RH_RUNNING && !ohci->ed_rm_list) {
 		u32	command = 0, control = 0;
 
 		if (ohci->ed_controltail) {
diff --git a/drivers/usb/host/ohci-s3c2410.c b/drivers/usb/host/ohci-s3c2410.c
index a1877c47601e..56dcf069246d 100644
--- a/drivers/usb/host/ohci-s3c2410.c
+++ b/drivers/usb/host/ohci-s3c2410.c
@@ -486,15 +486,66 @@ static int __devexit ohci_hcd_s3c2410_drv_remove(struct platform_device *pdev)
 	return 0;
 }
 
+#ifdef CONFIG_PM
+static int ohci_hcd_s3c2410_drv_suspend(struct device *dev)
+{
+	struct usb_hcd *hcd = dev_get_drvdata(dev);
+	struct ohci_hcd *ohci = hcd_to_ohci(hcd);
+	struct platform_device *pdev = to_platform_device(dev);
+	unsigned long flags;
+	int rc = 0;
+
+	/*
+	 * Root hub was already suspended. Disable irq emission and
+	 * mark HW unaccessible, bail out if RH has been resumed. Use
+	 * the spinlock to properly synchronize with possible pending
+	 * RH suspend or resume activity.
+	 */
+	spin_lock_irqsave(&ohci->lock, flags);
+	if (ohci->rh_state != OHCI_RH_SUSPENDED) {
+		rc = -EINVAL;
+		goto bail;
+	}
+
+	clear_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
+
+	s3c2410_stop_hc(pdev);
+bail:
+	spin_unlock_irqrestore(&ohci->lock, flags);
+
+	return rc;
+}
+
+static int ohci_hcd_s3c2410_drv_resume(struct device *dev)
+{
+	struct usb_hcd *hcd = dev_get_drvdata(dev);
+	struct platform_device *pdev = to_platform_device(dev);
+
+	s3c2410_start_hc(pdev, hcd);
+
+	set_bit(HCD_FLAG_HW_ACCESSIBLE, &hcd->flags);
+	ohci_finish_controller_resume(hcd);
+
+	return 0;
+}
+#else
+#define ohci_hcd_s3c2410_drv_suspend	NULL
+#define ohci_hcd_s3c2410_drv_resume	NULL
+#endif
+
+static const struct dev_pm_ops ohci_hcd_s3c2410_pm_ops = {
+	.suspend	= ohci_hcd_s3c2410_drv_suspend,
+	.resume		= ohci_hcd_s3c2410_drv_resume,
+};
+
 static struct platform_driver ohci_hcd_s3c2410_driver = {
 	.probe		= ohci_hcd_s3c2410_drv_probe,
 	.remove		= __devexit_p(ohci_hcd_s3c2410_drv_remove),
 	.shutdown	= usb_hcd_platform_shutdown,
-	/*.suspend	= ohci_hcd_s3c2410_drv_suspend, */
-	/*.resume	= ohci_hcd_s3c2410_drv_resume, */
 	.driver		= {
 		.owner	= THIS_MODULE,
 		.name	= "s3c2410-ohci",
+		.pm	= &ohci_hcd_s3c2410_pm_ops,
 	},
 };
 
diff --git a/drivers/usb/host/ohci-sh.c b/drivers/usb/host/ohci-sh.c
index afc4eb6bb9d0..84686d90805b 100644
--- a/drivers/usb/host/ohci-sh.c
+++ b/drivers/usb/host/ohci-sh.c
@@ -29,7 +29,6 @@ static int ohci_sh_start(struct usb_hcd *hcd)
 	ohci_hcd_init(ohci);
 	ohci_init(ohci);
 	ohci_run(ohci);
-	hcd->state = HC_STATE_RUNNING;
 	return 0;
 }
 
diff --git a/drivers/usb/host/ohci-sm501.c b/drivers/usb/host/ohci-sm501.c
index 968cea2b6d4e..5596ac2ba1ca 100644
--- a/drivers/usb/host/ohci-sm501.c
+++ b/drivers/usb/host/ohci-sm501.c
@@ -224,7 +224,6 @@ static int ohci_sm501_suspend(struct platform_device *pdev, pm_message_t msg)
 	ohci->next_statechange = jiffies;
 
 	sm501_unit_power(dev->parent, SM501_GATE_USB_HOST, 0);
-	ohci_to_hcd(ohci)->state = HC_STATE_SUSPENDED;
 	return 0;
 }
 
diff --git a/drivers/usb/host/ohci-spear.c b/drivers/usb/host/ohci-spear.c
index 69874654f3b5..95c16489e883 100644
--- a/drivers/usb/host/ohci-spear.c
+++ b/drivers/usb/host/ohci-spear.c
@@ -203,7 +203,6 @@ static int spear_ohci_hcd_drv_suspend(struct platform_device *dev,
 	ohci->next_statechange = jiffies;
 
 	spear_stop_ohci(ohci_p);
-	ohci_to_hcd(ohci)->state = HC_STATE_SUSPENDED;
 	return 0;
 }
 
diff --git a/drivers/usb/host/ohci-tmio.c b/drivers/usb/host/ohci-tmio.c
index 06331d931171..120bfe6ede38 100644
--- a/drivers/usb/host/ohci-tmio.c
+++ b/drivers/usb/host/ohci-tmio.c
@@ -318,9 +318,6 @@ static int ohci_hcd_tmio_drv_suspend(struct platform_device *dev, pm_message_t s
 		if (ret)
 			return ret;
 	}
-
-	hcd->state = HC_STATE_SUSPENDED;
-
 	return 0;
 }
 
diff --git a/drivers/usb/host/ohci-xls.c b/drivers/usb/host/ohci-xls.c
index a3a9c6f45b91..a2247867af86 100644
--- a/drivers/usb/host/ohci-xls.c
+++ b/drivers/usb/host/ohci-xls.c
@@ -40,7 +40,7 @@ static int ohci_xls_probe_internal(const struct hc_driver *driver,
 		goto err1;
 	}
 	hcd->rsrc_start = res->start;
-	hcd->rsrc_len = res->end - res->start + 1;
+	hcd->rsrc_len = resource_size(res);
 
 	if (!request_mem_region(hcd->rsrc_start, hcd->rsrc_len,
 			driver->description)) {
diff --git a/drivers/usb/host/ohci.h b/drivers/usb/host/ohci.h
index 0795b934d00c..8ff6f7ea96fd 100644
--- a/drivers/usb/host/ohci.h
+++ b/drivers/usb/host/ohci.h
@@ -344,6 +344,12 @@ typedef struct urb_priv {
  * a subset of what the full implementation needs. (Linus)
  */
 
+enum ohci_rh_state {
+	OHCI_RH_HALTED,
+	OHCI_RH_SUSPENDED,
+	OHCI_RH_RUNNING
+};
+
 struct ohci_hcd {
 	spinlock_t		lock;
 
@@ -384,6 +390,7 @@ struct ohci_hcd {
 	/*
 	 * driver state
 	 */
+	enum ohci_rh_state	rh_state;
 	int			num_ports;
 	int			load [NUM_INTS];
 	u32			hc_control;	/* copy of hc control reg */
@@ -679,11 +686,6 @@ static inline u16 ohci_hwPSW(const struct ohci_hcd *ohci,
 
 /*-------------------------------------------------------------------------*/
 
-static inline void disable (struct ohci_hcd *ohci)
-{
-	ohci_to_hcd(ohci)->state = HC_STATE_HALT;
-}
-
 #define	FI			0x2edf		/* 12000 bits per frame (-1) */
 #define	FSMP(fi)		(0x7fff & ((6 * ((fi) - 210)) / 7))
 #define	FIT			(1 << 31)
@@ -707,7 +709,7 @@ static inline void periodic_reinit (struct ohci_hcd *ohci)
 #define read_roothub(hc, register, mask) ({ \
 	u32 temp = ohci_readl (hc, &hc->regs->roothub.register); \
 	if (temp == -1) \
-		disable (hc); \
+		hc->rh_state = OHCI_RH_HALTED; \
 	else if (hc->flags & OHCI_QUIRK_AMD756) \
 		while (temp & mask) \
 			temp = ohci_readl (hc, &hc->regs->roothub.register); \
diff --git a/drivers/usb/host/oxu210hp-hcd.c b/drivers/usb/host/oxu210hp-hcd.c
index dcd889803f0f..6f62de5c6e35 100644
--- a/drivers/usb/host/oxu210hp-hcd.c
+++ b/drivers/usb/host/oxu210hp-hcd.c
@@ -3951,24 +3951,7 @@ static struct platform_driver oxu_driver = {
 	}
 };
 
-static int __init oxu_module_init(void)
-{
-	int retval = 0;
-
-	retval = platform_driver_register(&oxu_driver);
-	if (retval < 0)
-		return retval;
-
-	return retval;
-}
-
-static void __exit oxu_module_cleanup(void)
-{
-	platform_driver_unregister(&oxu_driver);
-}
-
-module_init(oxu_module_init);
-module_exit(oxu_module_cleanup);
+module_platform_driver(oxu_driver);
 
 MODULE_DESCRIPTION("Oxford OXU210HP HCD driver - ver. " DRIVER_VERSION);
 MODULE_AUTHOR("Rodolfo Giometti <giometti@linux.it>");
diff --git a/drivers/usb/host/uhci-q.c b/drivers/usb/host/uhci-q.c
index f6ca80ee4cec..d2c6f5ac4626 100644
--- a/drivers/usb/host/uhci-q.c
+++ b/drivers/usb/host/uhci-q.c
@@ -943,7 +943,7 @@ static int uhci_submit_common(struct uhci_hcd *uhci, struct urb *urb,
 	if (usb_pipein(urb->pipe))
 		status |= TD_CTRL_SPD;
 
-	i = urb->num_sgs;
+	i = urb->num_mapped_sgs;
 	if (len > 0 && i > 0) {
 		sg = urb->sg;
 		data = sg_dma_address(sg);
diff --git a/drivers/usb/host/whci/qset.c b/drivers/usb/host/whci/qset.c
index a403b53e86b9..76083ae92138 100644
--- a/drivers/usb/host/whci/qset.c
+++ b/drivers/usb/host/whci/qset.c
@@ -443,7 +443,7 @@ static int qset_add_urb_sg(struct whc *whc, struct whc_qset *qset, struct urb *u
 
 	remaining = urb->transfer_buffer_length;
 
-	for_each_sg(urb->sg, sg, urb->num_sgs, i) {
+	for_each_sg(urb->sg, sg, urb->num_mapped_sgs, i) {
 		dma_addr_t dma_addr;
 		size_t dma_remaining;
 		dma_addr_t sp, ep;
@@ -561,7 +561,7 @@ static int qset_add_urb_sg_linearize(struct whc *whc, struct whc_qset *qset,
 
 	remaining = urb->transfer_buffer_length;
 
-	for_each_sg(urb->sg, sg, urb->num_sgs, i) {
+	for_each_sg(urb->sg, sg, urb->num_mapped_sgs, i) {
 		size_t len;
 		size_t sg_remaining;
 		void *orig;
diff --git a/drivers/usb/host/xhci-hub.c b/drivers/usb/host/xhci-hub.c
index 430e88fd3f6c..35e257f79c7b 100644
--- a/drivers/usb/host/xhci-hub.c
+++ b/drivers/usb/host/xhci-hub.c
@@ -57,17 +57,15 @@ static void xhci_common_hub_descriptor(struct xhci_hcd *xhci,
 	desc->bHubContrCurrent = 0;
 
 	desc->bNbrPorts = ports;
-	/* Ugh, these should be #defines, FIXME */
-	/* Using table 11-13 in USB 2.0 spec. */
 	temp = 0;
-	/* Bits 1:0 - support port power switching, or power always on */
+	/* Bits 1:0 - support per-port power switching, or power always on */
 	if (HCC_PPC(xhci->hcc_params))
-		temp |= 0x0001;
+		temp |= HUB_CHAR_INDV_PORT_LPSM;
 	else
-		temp |= 0x0002;
+		temp |= HUB_CHAR_NO_LPSM;
 	/* Bit  2 - root hubs are not part of a compound device */
 	/* Bits 4:3 - individual port over current protection */
-	temp |= 0x0008;
+	temp |= HUB_CHAR_INDV_PORT_OCPM;
 	/* Bits 6:5 - no TTs in root ports */
 	/* Bit  7 - no port indicators */
 	desc->wHubCharacteristics = cpu_to_le16(temp);
@@ -86,9 +84,9 @@ static void xhci_usb2_hub_descriptor(struct usb_hcd *hcd, struct xhci_hcd *xhci,
 	ports = xhci->num_usb2_ports;
 
 	xhci_common_hub_descriptor(xhci, desc, ports);
-	desc->bDescriptorType = 0x29;
+	desc->bDescriptorType = USB_DT_HUB;
 	temp = 1 + (ports / 8);
-	desc->bDescLength = 7 + 2 * temp;
+	desc->bDescLength = USB_DT_HUB_NONVAR_SIZE + 2 * temp;
 
 	/* The Device Removable bits are reported on a byte granularity.
 	 * If the port doesn't exist within that byte, the bit is set to 0.
@@ -137,8 +135,8 @@ static void xhci_usb3_hub_descriptor(struct usb_hcd *hcd, struct xhci_hcd *xhci,
 
 	ports = xhci->num_usb3_ports;
 	xhci_common_hub_descriptor(xhci, desc, ports);
-	desc->bDescriptorType = 0x2a;
-	desc->bDescLength = 12;
+	desc->bDescriptorType = USB_DT_SS_HUB;
+	desc->bDescLength = USB_DT_SS_HUB_SIZE;
 
 	/* header decode latency should be zero for roothubs,
 	 * see section 4.23.5.2.
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index 0e4b25fa3bcd..36cbe2226a44 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -42,15 +42,12 @@ static struct xhci_segment *xhci_segment_alloc(struct xhci_hcd *xhci, gfp_t flag
 	seg = kzalloc(sizeof *seg, flags);
 	if (!seg)
 		return NULL;
-	xhci_dbg(xhci, "Allocating priv segment structure at %p\n", seg);
 
 	seg->trbs = dma_pool_alloc(xhci->segment_pool, flags, &dma);
 	if (!seg->trbs) {
 		kfree(seg);
 		return NULL;
 	}
-	xhci_dbg(xhci, "// Allocating segment at %p (virtual) 0x%llx (DMA)\n",
-			seg->trbs, (unsigned long long)dma);
 
 	memset(seg->trbs, 0, SEGMENT_SIZE);
 	seg->dma = dma;
@@ -62,12 +59,9 @@ static struct xhci_segment *xhci_segment_alloc(struct xhci_hcd *xhci, gfp_t flag
 static void xhci_segment_free(struct xhci_hcd *xhci, struct xhci_segment *seg)
 {
 	if (seg->trbs) {
-		xhci_dbg(xhci, "Freeing DMA segment at %p (virtual) 0x%llx (DMA)\n",
-				seg->trbs, (unsigned long long)seg->dma);
 		dma_pool_free(xhci->segment_pool, seg->trbs, seg->dma);
 		seg->trbs = NULL;
 	}
-	xhci_dbg(xhci, "Freeing priv segment structure at %p\n", seg);
 	kfree(seg);
 }
 
@@ -101,9 +95,6 @@ static void xhci_link_segments(struct xhci_hcd *xhci, struct xhci_segment *prev,
 			val |= TRB_CHAIN;
 		prev->trbs[TRBS_PER_SEGMENT-1].link.control = cpu_to_le32(val);
 	}
-	xhci_dbg(xhci, "Linking segment 0x%llx to segment 0x%llx (DMA)\n",
-			(unsigned long long)prev->dma,
-			(unsigned long long)next->dma);
 }
 
 /* XXX: Do we need the hcd structure in all these functions? */
@@ -117,7 +108,6 @@ void xhci_ring_free(struct xhci_hcd *xhci, struct xhci_ring *ring)
 	if (ring->first_seg) {
 		first_seg = ring->first_seg;
 		seg = first_seg->next;
-		xhci_dbg(xhci, "Freeing ring at %p\n", ring);
 		while (seg != first_seg) {
 			struct xhci_segment *next = seg->next;
 			xhci_segment_free(xhci, seg);
@@ -160,7 +150,6 @@ static struct xhci_ring *xhci_ring_alloc(struct xhci_hcd *xhci,
 	struct xhci_segment	*prev;
 
 	ring = kzalloc(sizeof *(ring), flags);
-	xhci_dbg(xhci, "Allocating ring at %p\n", ring);
 	if (!ring)
 		return NULL;
 
@@ -191,9 +180,6 @@ static struct xhci_ring *xhci_ring_alloc(struct xhci_hcd *xhci,
 		/* See section 4.9.2.1 and 6.4.4.1 */
 		prev->trbs[TRBS_PER_SEGMENT-1].link.control |=
 			cpu_to_le32(LINK_TOGGLE);
-		xhci_dbg(xhci, "Wrote link toggle flag to"
-				" segment %p (virtual), 0x%llx (DMA)\n",
-				prev, (unsigned long long)prev->dma);
 	}
 	xhci_initialize_ring_info(ring);
 	return ring;
diff --git a/drivers/usb/host/xhci-ring.c b/drivers/usb/host/xhci-ring.c
index 9f1d4b15d818..b90e1386418b 100644
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -155,10 +155,6 @@ static void inc_deq(struct xhci_hcd *xhci, struct xhci_ring *ring, bool consumer
 	while (last_trb(xhci, ring, ring->deq_seg, next)) {
 		if (consumer && last_trb_on_last_seg(xhci, ring, ring->deq_seg, next)) {
 			ring->cycle_state = (ring->cycle_state ? 0 : 1);
-			if (!in_interrupt())
-				xhci_dbg(xhci, "Toggle cycle state for ring %p = %i\n",
-						ring,
-						(unsigned int) ring->cycle_state);
 		}
 		ring->deq_seg = ring->deq_seg->next;
 		ring->dequeue = ring->deq_seg->trbs;
@@ -231,10 +227,6 @@ static void inc_enq(struct xhci_hcd *xhci, struct xhci_ring *ring,
 			/* Toggle the cycle bit after the last ring segment. */
 			if (last_trb_on_last_seg(xhci, ring, ring->enq_seg, next)) {
 				ring->cycle_state = (ring->cycle_state ? 0 : 1);
-				if (!in_interrupt())
-					xhci_dbg(xhci, "Toggle cycle state for ring %p = %i\n",
-							ring,
-							(unsigned int) ring->cycle_state);
 			}
 		}
 		ring->enq_seg = ring->enq_seg->next;
@@ -560,12 +552,9 @@ static void td_to_noop(struct xhci_hcd *xhci, struct xhci_ring *ep_ring,
 					cpu_to_le32(TRB_CYCLE);
 			cur_trb->generic.field[3] |= cpu_to_le32(
 				TRB_TYPE(TRB_TR_NOOP));
-			xhci_dbg(xhci, "Cancel TRB %p (0x%llx dma) "
-					"in seg %p (0x%llx dma)\n",
-					cur_trb,
-					(unsigned long long)xhci_trb_virt_to_dma(cur_seg, cur_trb),
-					cur_seg,
-					(unsigned long long)cur_seg->dma);
+			xhci_dbg(xhci, "TRB to noop at offset 0x%llx\n",
+					(unsigned long long)
+					xhci_trb_virt_to_dma(cur_seg, cur_trb));
 		}
 		if (cur_trb == cur_td->last_trb)
 			break;
@@ -705,9 +694,9 @@ static void handle_stopped_endpoint(struct xhci_hcd *xhci,
 	 */
 	list_for_each(entry, &ep->cancelled_td_list) {
 		cur_td = list_entry(entry, struct xhci_td, cancelled_td_list);
-		xhci_dbg(xhci, "Cancelling TD starting at %p, 0x%llx (dma).\n",
-				cur_td->first_trb,
-				(unsigned long long)xhci_trb_virt_to_dma(cur_td->start_seg, cur_td->first_trb));
+		xhci_dbg(xhci, "Removing canceled TD starting at 0x%llx (dma).\n",
+				(unsigned long long)xhci_trb_virt_to_dma(
+					cur_td->start_seg, cur_td->first_trb));
 		ep_ring = xhci_urb_to_transfer_ring(xhci, cur_td->urb);
 		if (!ep_ring) {
 			/* This shouldn't happen unless a driver is mucking
@@ -1627,7 +1616,6 @@ static int process_ctrl_td(struct xhci_hcd *xhci, struct xhci_td *td,
 	ep_ctx = xhci_get_ep_ctx(xhci, xdev->out_ctx, ep_index);
 	trb_comp_code = GET_COMP_CODE(le32_to_cpu(event->transfer_len));
 
-	xhci_debug_trb(xhci, xhci->event_ring->dequeue);
 	switch (trb_comp_code) {
 	case COMP_SUCCESS:
 		if (event_trb == ep_ring->dequeue) {
@@ -1643,7 +1631,6 @@ static int process_ctrl_td(struct xhci_hcd *xhci, struct xhci_td *td,
 		}
 		break;
 	case COMP_SHORT_TX:
-		xhci_warn(xhci, "WARN: short transfer on control ep\n");
 		if (td->urb->transfer_flags & URB_SHORT_NOT_OK)
 			*status = -EREMOTEIO;
 		else
@@ -1946,6 +1933,16 @@ static int handle_tx_event(struct xhci_hcd *xhci,
 	xdev = xhci->devs[slot_id];
 	if (!xdev) {
 		xhci_err(xhci, "ERROR Transfer event pointed to bad slot\n");
+		xhci_err(xhci, "@%016llx %08x %08x %08x %08x\n",
+			 (unsigned long long) xhci_trb_virt_to_dma(
+				 xhci->event_ring->deq_seg,
+				 xhci->event_ring->dequeue),
+			 lower_32_bits(le64_to_cpu(event->buffer)),
+			 upper_32_bits(le64_to_cpu(event->buffer)),
+			 le32_to_cpu(event->transfer_len),
+			 le32_to_cpu(event->flags));
+		xhci_dbg(xhci, "Event ring:\n");
+		xhci_debug_segment(xhci, xhci->event_ring->deq_seg);
 		return -ENODEV;
 	}
 
@@ -1959,6 +1956,16 @@ static int handle_tx_event(struct xhci_hcd *xhci,
 	    EP_STATE_DISABLED) {
 		xhci_err(xhci, "ERROR Transfer event for disabled endpoint "
 				"or incorrect stream ring\n");
+		xhci_err(xhci, "@%016llx %08x %08x %08x %08x\n",
+			 (unsigned long long) xhci_trb_virt_to_dma(
+				 xhci->event_ring->deq_seg,
+				 xhci->event_ring->dequeue),
+			 lower_32_bits(le64_to_cpu(event->buffer)),
+			 upper_32_bits(le64_to_cpu(event->buffer)),
+			 le32_to_cpu(event->transfer_len),
+			 le32_to_cpu(event->flags));
+		xhci_dbg(xhci, "Event ring:\n");
+		xhci_debug_segment(xhci, xhci->event_ring->deq_seg);
 		return -ENODEV;
 	}
 
@@ -1985,7 +1992,7 @@ static int handle_tx_event(struct xhci_hcd *xhci,
 		xhci_dbg(xhci, "Stopped on No-op or Link TRB\n");
 		break;
 	case COMP_STALL:
-		xhci_warn(xhci, "WARN: Stalled endpoint\n");
+		xhci_dbg(xhci, "Stalled endpoint\n");
 		ep->ep_state |= EP_HALTED;
 		status = -EPIPE;
 		break;
@@ -1995,11 +2002,11 @@ static int handle_tx_event(struct xhci_hcd *xhci,
 		break;
 	case COMP_SPLIT_ERR:
 	case COMP_TX_ERR:
-		xhci_warn(xhci, "WARN: transfer error on endpoint\n");
+		xhci_dbg(xhci, "Transfer error on endpoint\n");
 		status = -EPROTO;
 		break;
 	case COMP_BABBLE:
-		xhci_warn(xhci, "WARN: babble error on endpoint\n");
+		xhci_dbg(xhci, "Babble error on endpoint\n");
 		status = -EOVERFLOW;
 		break;
 	case COMP_DB_ERR:
@@ -2390,17 +2397,7 @@ hw_died:
 
 irqreturn_t xhci_msi_irq(int irq, struct usb_hcd *hcd)
 {
-	irqreturn_t ret;
-	struct xhci_hcd *xhci;
-
-	xhci = hcd_to_xhci(hcd);
-	set_bit(HCD_FLAG_SAW_IRQ, &hcd->flags);
-	if (xhci->shared_hcd)
-		set_bit(HCD_FLAG_SAW_IRQ, &xhci->shared_hcd->flags);
-
-	ret = xhci_irq(hcd);
-
-	return ret;
+	return xhci_irq(hcd);
 }
 
 /****		Endpoint Ring Operations	****/
@@ -2488,11 +2485,6 @@ static int prepare_ring(struct xhci_hcd *xhci, struct xhci_ring *ep_ring,
 			/* Toggle the cycle bit after the last ring segment. */
 			if (last_trb_on_last_seg(xhci, ring, ring->enq_seg, next)) {
 				ring->cycle_state = (ring->cycle_state ? 0 : 1);
-				if (!in_interrupt()) {
-					xhci_dbg(xhci, "queue_trb: Toggle cycle "
-						"state for ring %p = %i\n",
-						ring, (unsigned int)ring->cycle_state);
-				}
 			}
 			ring->enq_seg = ring->enq_seg->next;
 			ring->enqueue = ring->enq_seg->trbs;
@@ -2561,13 +2553,11 @@ static unsigned int count_sg_trbs_needed(struct xhci_hcd *xhci, struct urb *urb)
 	struct scatterlist *sg;
 
 	sg = NULL;
-	num_sgs = urb->num_sgs;
+	num_sgs = urb->num_mapped_sgs;
 	temp = urb->transfer_buffer_length;
 
-	xhci_dbg(xhci, "count sg list trbs: \n");
 	num_trbs = 0;
 	for_each_sg(urb->sg, sg, num_sgs, i) {
-		unsigned int previous_total_trbs = num_trbs;
 		unsigned int len = sg_dma_len(sg);
 
 		/* Scatter gather list entries may cross 64KB boundaries */
@@ -2582,22 +2572,11 @@ static unsigned int count_sg_trbs_needed(struct xhci_hcd *xhci, struct urb *urb)
 			num_trbs++;
 			running_total += TRB_MAX_BUFF_SIZE;
 		}
-		xhci_dbg(xhci, " sg #%d: dma = %#llx, len = %#x (%d), num_trbs = %d\n",
-				i, (unsigned long long)sg_dma_address(sg),
-				len, len, num_trbs - previous_total_trbs);
-
 		len = min_t(int, len, temp);
 		temp -= len;
 		if (temp == 0)
 			break;
 	}
-	xhci_dbg(xhci, "\n");
-	if (!in_interrupt())
-		xhci_dbg(xhci, "ep %#x - urb len = %d, sglist used, "
-				"num_trbs = %d\n",
-				urb->ep->desc.bEndpointAddress,
-				urb->transfer_buffer_length,
-				num_trbs);
 	return num_trbs;
 }
 
@@ -2745,7 +2724,7 @@ static int queue_bulk_sg_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
 		return -EINVAL;
 
 	num_trbs = count_sg_trbs_needed(xhci, urb);
-	num_sgs = urb->num_sgs;
+	num_sgs = urb->num_mapped_sgs;
 	total_packet_count = roundup(urb->transfer_buffer_length,
 			usb_endpoint_maxp(&urb->ep->desc));
 
@@ -2783,8 +2762,6 @@ static int queue_bulk_sg_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
 	trb_buff_len = min_t(int, trb_buff_len, this_sg_len);
 	if (trb_buff_len > urb->transfer_buffer_length)
 		trb_buff_len = urb->transfer_buffer_length;
-	xhci_dbg(xhci, "First length to xfer from 1st sglist entry = %u\n",
-			trb_buff_len);
 
 	first_trb = true;
 	/* Queue the first TRB, even if it's zero-length */
@@ -2816,11 +2793,6 @@ static int queue_bulk_sg_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
 		if (usb_urb_dir_in(urb))
 			field |= TRB_ISP;
 
-		xhci_dbg(xhci, " sg entry: dma = %#x, len = %#x (%d), "
-				"64KB boundary at %#x, end dma = %#x\n",
-				(unsigned int) addr, trb_buff_len, trb_buff_len,
-				(unsigned int) (addr + TRB_MAX_BUFF_SIZE) & ~(TRB_MAX_BUFF_SIZE - 1),
-				(unsigned int) addr + trb_buff_len);
 		if (TRB_MAX_BUFF_SIZE -
 				(addr & (TRB_MAX_BUFF_SIZE - 1)) < trb_buff_len) {
 			xhci_warn(xhci, "WARN: sg dma xfer crosses 64KB boundaries!\n");
@@ -2926,15 +2898,6 @@ int xhci_queue_bulk_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
 	}
 	/* FIXME: this doesn't deal with URB_ZERO_PACKET - need one more */
 
-	if (!in_interrupt())
-		xhci_dbg(xhci, "ep %#x - urb len = %#x (%d), "
-				"addr = %#llx, num_trbs = %d\n",
-				urb->ep->desc.bEndpointAddress,
-				urb->transfer_buffer_length,
-				urb->transfer_buffer_length,
-				(unsigned long long)urb->transfer_dma,
-				num_trbs);
-
 	ret = prepare_transfer(xhci, xhci->devs[slot_id],
 			ep_index, urb->stream_id,
 			num_trbs, urb, 0, false, mem_flags);
@@ -3055,9 +3018,6 @@ int xhci_queue_ctrl_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
 	if (!urb->setup_packet)
 		return -EINVAL;
 
-	if (!in_interrupt())
-		xhci_dbg(xhci, "Queueing ctrl tx for slot id %d, ep %d\n",
-				slot_id, ep_index);
 	/* 1 TRB for setup, 1 for status */
 	num_trbs = 2;
 	/*
@@ -3249,15 +3209,6 @@ static int xhci_queue_isoc_tx(struct xhci_hcd *xhci, gfp_t mem_flags,
 		return -EINVAL;
 	}
 
-	if (!in_interrupt())
-		xhci_dbg(xhci, "ep %#x - urb len = %#x (%d),"
-				" addr = %#llx, num_tds = %d\n",
-				urb->ep->desc.bEndpointAddress,
-				urb->transfer_buffer_length,
-				urb->transfer_buffer_length,
-				(unsigned long long)urb->transfer_dma,
-				num_tds);
-
 	start_addr = (u64) urb->transfer_dma;
 	start_trb = &ep_ring->enqueue->generic;
 	start_cycle = ep_ring->cycle_state;
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index a1afb7c39f7e..6bbe3c3a7111 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -200,14 +200,14 @@ static int xhci_setup_msi(struct xhci_hcd *xhci)
 
 	ret = pci_enable_msi(pdev);
 	if (ret) {
-		xhci_err(xhci, "failed to allocate MSI entry\n");
+		xhci_dbg(xhci, "failed to allocate MSI entry\n");
 		return ret;
 	}
 
 	ret = request_irq(pdev->irq, (irq_handler_t)xhci_msi_irq,
 				0, "xhci_hcd", xhci_to_hcd(xhci));
 	if (ret) {
-		xhci_err(xhci, "disable MSI interrupt\n");
+		xhci_dbg(xhci, "disable MSI interrupt\n");
 		pci_disable_msi(pdev);
 	}
 
@@ -270,7 +270,7 @@ static int xhci_setup_msix(struct xhci_hcd *xhci)
 
 	ret = pci_enable_msix(pdev, xhci->msix_entries, xhci->msix_count);
 	if (ret) {
-		xhci_err(xhci, "Failed to enable MSI-X\n");
+		xhci_dbg(xhci, "Failed to enable MSI-X\n");
 		goto free_entries;
 	}
 
@@ -286,7 +286,7 @@ static int xhci_setup_msix(struct xhci_hcd *xhci)
 	return ret;
 
 disable_msix:
-	xhci_err(xhci, "disable MSI-X interrupt\n");
+	xhci_dbg(xhci, "disable MSI-X interrupt\n");
 	xhci_free_irq(xhci);
 	pci_disable_msix(pdev);
 free_entries:
@@ -1333,9 +1333,6 @@ int xhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
 		goto done;
 	}
 
-	xhci_dbg(xhci, "Cancel URB %p\n", urb);
-	xhci_dbg(xhci, "Event ring:\n");
-	xhci_debug_ring(xhci, xhci->event_ring);
 	ep_index = xhci_get_endpoint_index(&urb->ep->desc);
 	ep = &xhci->devs[urb->dev->slot_id]->eps[ep_index];
 	ep_ring = xhci_urb_to_transfer_ring(xhci, urb);
@@ -1344,12 +1341,18 @@ int xhci_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
 		goto done;
 	}
 
-	xhci_dbg(xhci, "Endpoint ring:\n");
-	xhci_debug_ring(xhci, ep_ring);
-
 	urb_priv = urb->hcpriv;
-
-	for (i = urb_priv->td_cnt; i < urb_priv->length; i++) {
+	i = urb_priv->td_cnt;
+	if (i < urb_priv->length)
+		xhci_dbg(xhci, "Cancel URB %p, dev %s, ep 0x%x, "
+				"starting at offset 0x%llx\n",
+				urb, urb->dev->devpath,
+				urb->ep->desc.bEndpointAddress,
+				(unsigned long long) xhci_trb_virt_to_dma(
+					urb_priv->td[i]->start_seg,
+					urb_priv->td[i]->first_trb));
+
+	for (; i < urb_priv->length; i++) {
 		td = urb_priv->td[i];
 		list_add_tail(&td->cancelled_td_list, &ep->cancelled_td_list);
 	}
@@ -1620,6 +1623,7 @@ static int xhci_configure_endpoint_result(struct xhci_hcd *xhci,
 		/* FIXME: can we allocate more resources for the HC? */
 		break;
 	case COMP_BW_ERR:
+	case COMP_2ND_BW_ERR:
 		dev_warn(&udev->dev, "Not enough bandwidth "
 				"for new device state.\n");
 		ret = -ENOSPC;
@@ -2796,8 +2800,7 @@ static int xhci_calculate_streams_and_bitmask(struct xhci_hcd *xhci,
 		if (ret < 0)
 			return ret;
 
-		max_streams = USB_SS_MAX_STREAMS(
-				eps[i]->ss_ep_comp.bmAttributes);
+		max_streams = usb_ss_max_streams(&eps[i]->ss_ep_comp);
 		if (max_streams < (*num_streams - 1)) {
 			xhci_dbg(xhci, "Ep 0x%x only supports %u stream IDs.\n",
 					eps[i]->desc.bEndpointAddress,
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 3c8fbd2772ea..fb99c8379142 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1033,7 +1033,6 @@ struct xhci_transfer_event {
 /* Invalid Stream ID Error */
 #define COMP_STRID_ERR	34
 /* Secondary Bandwidth Error - may be returned by a Configure Endpoint cmd */
-/* FIXME - check for this */
 #define COMP_2ND_BW_ERR	35
 /* Split Transaction Error */
 #define	COMP_SPLIT_ERR	36
@@ -1356,7 +1355,7 @@ static inline unsigned int hcd_index(struct usb_hcd *hcd)
 		return 1;
 }
 
-/* There is one ehci_hci structure per controller */
+/* There is one xhci_hcd structure per controller */
 struct xhci_hcd {
 	struct usb_hcd *main_hcd;
 	struct usb_hcd *shared_hcd;
diff --git a/drivers/usb/misc/isight_firmware.c b/drivers/usb/misc/isight_firmware.c
index 1dc7e9581cc6..1c61830e96f9 100644
--- a/drivers/usb/misc/isight_firmware.c
+++ b/drivers/usb/misc/isight_firmware.c
@@ -55,8 +55,9 @@ static int isight_firmware_load(struct usb_interface *intf,
 
 	ptr = firmware->data;
 
+	buf[0] = 0x01;
 	if (usb_control_msg
-	    (dev, usb_sndctrlpipe(dev, 0), 0xa0, 0x40, 0xe600, 0, "\1", 1,
+	    (dev, usb_sndctrlpipe(dev, 0), 0xa0, 0x40, 0xe600, 0, buf, 1,
 	     300) != 1) {
 		printk(KERN_ERR
 		       "Failed to initialise isight firmware loader\n");
@@ -100,8 +101,9 @@ static int isight_firmware_load(struct usb_interface *intf,
 		}
 	}
 
+	buf[0] = 0x00;
 	if (usb_control_msg
-	    (dev, usb_sndctrlpipe(dev, 0), 0xa0, 0x40, 0xe600, 0, "\0", 1,
+	    (dev, usb_sndctrlpipe(dev, 0), 0xa0, 0x40, 0xe600, 0, buf, 1,
 	     300) != 1) {
 		printk(KERN_ERR "isight firmware loading completion failed\n");
 		ret = -ENODEV;
diff --git a/drivers/usb/misc/usbled.c b/drivers/usb/misc/usbled.c
index 4af56fbc3c06..12d03e7ad636 100644
--- a/drivers/usb/misc/usbled.c
+++ b/drivers/usb/misc/usbled.c
@@ -31,6 +31,8 @@ static const struct usb_device_id id_table[] = {
 			.driver_info = DELCOM_VISUAL_SIGNAL_INDICATOR },
 	{ USB_DEVICE(0x1d34, 0x0004),
 			.driver_info = DREAM_CHEEKY_WEBMAIL_NOTIFIER },
+	{ USB_DEVICE(0x1d34, 0x000a),
+			.driver_info = DREAM_CHEEKY_WEBMAIL_NOTIFIER },
 	{ },
 };
 MODULE_DEVICE_TABLE(usb, id_table);
diff --git a/drivers/usb/misc/usbtest.c b/drivers/usb/misc/usbtest.c
index bd6d00802eab..959145baf3cf 100644
--- a/drivers/usb/misc/usbtest.c
+++ b/drivers/usb/misc/usbtest.c
@@ -1765,7 +1765,6 @@ static int test_unaligned_bulk(
  * off just killing the userspace task and waiting for it to exit.
  */
 
-/* No BKL needed */
 static int
 usbtest_ioctl(struct usb_interface *intf, unsigned int code, void *buf)
 {
diff --git a/drivers/usb/musb/Kconfig b/drivers/usb/musb/Kconfig
index 07a03460a598..f70cab3beeec 100644
--- a/drivers/usb/musb/Kconfig
+++ b/drivers/usb/musb/Kconfig
@@ -5,14 +5,13 @@
 
 # (M)HDRC = (Multipoint) Highspeed Dual-Role Controller
 config USB_MUSB_HDRC
+	tristate 'Inventra Highspeed Dual Role Controller (TI, ADI, ...)'
 	depends on USB && USB_GADGET
-	depends on (ARM || (BF54x && !BF544) || (BF52x && !BF522 && !BF523))
 	select NOP_USB_XCEIV if (ARCH_DAVINCI || MACH_OMAP3EVM || BLACKFIN)
 	select TWL4030_USB if MACH_OMAP_3430SDP
 	select TWL6030_USB if MACH_OMAP_4430SDP || MACH_OMAP4_PANDA
 	select USB_OTG_UTILS
 	select USB_GADGET_DUALSPEED
-	tristate 'Inventra Highspeed Dual Role Controller (TI, ADI, ...)'
 	help
 	  Say Y here if your system has a dual role high speed USB
 	  controller based on the Mentor Graphics silicon IP.  Then
@@ -31,9 +30,10 @@ config USB_MUSB_HDRC
 	  To compile this driver as a module, choose M here; the
 	  module will be called "musb-hdrc".
 
+if USB_MUSB_HDRC
+
 choice
 	prompt "Platform Glue Layer"
-	depends on USB_MUSB_HDRC
 
 config USB_MUSB_DAVINCI
 	tristate "DaVinci"
@@ -45,7 +45,6 @@ config USB_MUSB_DA8XX
 
 config USB_MUSB_TUSB6010
 	tristate "TUSB6010"
-	depends on ARCH_OMAP
 
 config USB_MUSB_OMAP2PLUS
 	tristate "OMAP2430 and onwards"
@@ -65,46 +64,54 @@ config USB_MUSB_UX500
 
 endchoice
 
-config MUSB_PIO_ONLY
-	bool 'Disable DMA (always use PIO)'
-	depends on USB_MUSB_HDRC
-	default USB_MUSB_TUSB6010 || USB_MUSB_DA8XX || USB_MUSB_AM35X
+choice
+	prompt 'MUSB DMA mode'
+	default USB_UX500_DMA if USB_MUSB_UX500
+	default USB_INVENTRA_DMA if USB_MUSB_OMAP2PLUS || USB_MUSB_BLACKFIN
+	default USB_TI_CPPI_DMA if USB_MUSB_DAVINCI
+	default USB_TUSB_OMAP_DMA if USB_MUSB_TUSB6010
+	default MUSB_PIO_ONLY if USB_MUSB_TUSB6010 || USB_MUSB_DA8XX || USB_MUSB_AM35X
 	help
-	  All data is copied between memory and FIFO by the CPU.
-	  DMA controllers are ignored.
-
-	  Do not select 'n' here unless DMA support for your SOC or board
-	  is unavailable (or unstable).  When DMA is enabled at compile time,
-	  you can still disable it at run time using the "use_dma=n" module
-	  parameter.
+	  Unfortunately, only one option can be enabled here. Ideally one
+	  should be able to build all these drivers into one kernel to
+	  allow using DMA on multiplatform kernels.
 
 config USB_UX500_DMA
-	bool
-	depends on USB_MUSB_HDRC && !MUSB_PIO_ONLY
-	default USB_MUSB_UX500
+	bool 'ST Ericsson U8500 and U5500'
+	depends on USB_MUSB_UX500
 	help
 	  Enable DMA transfers on UX500 platforms.
 
 config USB_INVENTRA_DMA
-	bool
-	depends on USB_MUSB_HDRC && !MUSB_PIO_ONLY
-	default USB_MUSB_OMAP2PLUS || USB_MUSB_BLACKFIN
+	bool 'Inventra'
+	depends on USB_MUSB_OMAP2PLUS || USB_MUSB_BLACKFIN
 	help
 	  Enable DMA transfers using Mentor's engine.
 
 config USB_TI_CPPI_DMA
-	bool
-	depends on USB_MUSB_HDRC && !MUSB_PIO_ONLY
-	default USB_MUSB_DAVINCI
+	bool 'TI CPPI (Davinci)'
+	depends on USB_MUSB_DAVINCI
 	help
 	  Enable DMA transfers when TI CPPI DMA is available.
 
 config USB_TUSB_OMAP_DMA
-	bool
-	depends on USB_MUSB_HDRC && !MUSB_PIO_ONLY
+	bool 'TUSB 6010'
 	depends on USB_MUSB_TUSB6010
 	depends on ARCH_OMAP
-	default y
 	help
 	  Enable DMA transfers on TUSB 6010 when OMAP DMA is available.
 
+config MUSB_PIO_ONLY
+	bool 'Disable DMA (always use PIO)'
+	help
+	  All data is copied between memory and FIFO by the CPU.
+	  DMA controllers are ignored.
+
+	  Do not choose this unless DMA support for your SOC or board
+	  is unavailable (or unstable).  When DMA is enabled at compile time,
+	  you can still disable it at run time using the "use_dma=n" module
+	  parameter.
+
+endchoice
+
+endif # USB_MUSB_HDRC
diff --git a/drivers/usb/musb/Makefile b/drivers/usb/musb/Makefile
index d8fd9d092dec..88bfb9dee4bf 100644
--- a/drivers/usb/musb/Makefile
+++ b/drivers/usb/musb/Makefile
@@ -24,25 +24,7 @@ obj-$(CONFIG_USB_MUSB_UX500)			+= ux500.o
 # PIO only, or DMA (several potential schemes).
 # though PIO is always there to back up DMA, and for ep0
 
-ifneq ($(CONFIG_MUSB_PIO_ONLY),y)
-
-  ifeq ($(CONFIG_USB_INVENTRA_DMA),y)
-    musb_hdrc-y			+= musbhsdma.o
-
-  else
-    ifeq ($(CONFIG_USB_TI_CPPI_DMA),y)
-      musb_hdrc-y		+= cppi_dma.o
-
-    else
-      ifeq ($(CONFIG_USB_TUSB_OMAP_DMA),y)
-	musb_hdrc-y		+= tusb6010_omap.o
-
-      else
-        ifeq ($(CONFIG_USB_UX500_DMA),y)
-	  musb_hdrc-y		+= ux500_dma.o
-
-        endif
-      endif
-    endif
-  endif
-endif
+musb_hdrc-$(CONFIG_USB_INVENTRA_DMA)		+= musbhsdma.o
+musb_hdrc-$(CONFIG_USB_TI_CPPI_DMA)		+= cppi_dma.o
+musb_hdrc-$(CONFIG_USB_TUSB_OMAP_DMA)		+= tusb6010_omap.o
+musb_hdrc-$(CONFIG_USB_UX500_DMA)		+= ux500_dma.o
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index b63ab1570103..f6ff7923048b 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -661,7 +661,6 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
 
 		handled = IRQ_HANDLED;
 		musb->is_active = 1;
-		set_bit(HCD_FLAG_SAW_IRQ, &hcd->flags);
 
 		musb->ep0_stage = MUSB_EP0_START;
 
@@ -1432,7 +1431,7 @@ static int __init musb_core_init(u16 musb_type, struct musb *musb)
 		struct musb_hw_ep	*hw_ep = musb->endpoints + i;
 
 		hw_ep->fifo = MUSB_FIFO_OFFSET(i) + mbase;
-#ifdef CONFIG_USB_MUSB_TUSB6010
+#if defined(CONFIG_USB_MUSB_TUSB6010) || defined (CONFIG_USB_MUSB_TUSB6010_MODULE)
 		hw_ep->fifo_async = musb->async + 0x400 + MUSB_FIFO_OFFSET(i);
 		hw_ep->fifo_sync = musb->sync + 0x400 + MUSB_FIFO_OFFSET(i);
 		hw_ep->fifo_sync_va =
@@ -1631,6 +1630,7 @@ void musb_dma_completion(struct musb *musb, u8 epnum, u8 transmit)
 		}
 	}
 }
+EXPORT_SYMBOL_GPL(musb_dma_completion);
 
 #else
 #define use_dma			0
@@ -2012,8 +2012,6 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
 	if (status < 0)
 		goto fail3;
 
-	pm_runtime_put(musb->controller);
-
 	status = musb_init_debugfs(musb);
 	if (status < 0)
 		goto fail4;
@@ -2158,6 +2156,7 @@ static void musb_save_context(struct musb *musb)
 		if (!epio)
 			continue;
 
+		musb_writeb(musb_base, MUSB_INDEX, i);
 		musb->context.index_regs[i].txmaxp =
 			musb_readw(epio, MUSB_TXMAXP);
 		musb->context.index_regs[i].txcsr =
@@ -2233,6 +2232,7 @@ static void musb_restore_context(struct musb *musb)
 		if (!epio)
 			continue;
 
+		musb_writeb(musb_base, MUSB_INDEX, i);
 		musb_writew(epio, MUSB_TXMAXP,
 			musb->context.index_regs[i].txmaxp);
 		musb_writew(epio, MUSB_TXCSR,
diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h
index b3c065ab9dbc..3d28fb8a2dc9 100644
--- a/drivers/usb/musb/musb_core.h
+++ b/drivers/usb/musb/musb_core.h
@@ -40,7 +40,6 @@
 #include <linux/interrupt.h>
 #include <linux/errno.h>
 #include <linux/timer.h>
-#include <linux/clk.h>
 #include <linux/device.h>
 #include <linux/usb/ch9.h>
 #include <linux/usb/gadget.h>
@@ -311,6 +310,7 @@ struct musb_context_registers {
 	u8 index, testmode;
 
 	u8 devctl, busctl, misc;
+	u32 otg_interfsel;
 
 	struct musb_csr_regs index_regs[MUSB_C_NUM_EPS];
 };
@@ -327,6 +327,7 @@ struct musb {
 
 	irqreturn_t		(*isr)(int, void *);
 	struct work_struct	irq_work;
+	struct work_struct	otg_notifier_work;
 	u16			hwvers;
 
 /* this hub status bit is reserved by USB 2.0 and not seen by usbcore */
@@ -372,6 +373,7 @@ struct musb {
 	u16			int_tx;
 
 	struct otg_transceiver	*xceiv;
+	u8			xceiv_event;
 
 	int nIrq;
 	unsigned		irq_wake:1;
diff --git a/drivers/usb/musb/musb_debug.h b/drivers/usb/musb/musb_debug.h
index 742eada5002e..27ba8f799462 100644
--- a/drivers/usb/musb/musb_debug.h
+++ b/drivers/usb/musb/musb_debug.h
@@ -43,8 +43,8 @@
 #define ERR(fmt, args...) yprintk(KERN_ERR, fmt, ## args)
 
 #ifdef CONFIG_DEBUG_FS
-extern int musb_init_debugfs(struct musb *musb);
-extern void musb_exit_debugfs(struct musb *musb);
+int musb_init_debugfs(struct musb *musb);
+void musb_exit_debugfs(struct musb *musb);
 #else
 static inline int musb_init_debugfs(struct musb *musb)
 {
diff --git a/drivers/usb/musb/musb_debugfs.c b/drivers/usb/musb/musb_debugfs.c
index 61f4ee466df7..13d9af9bf920 100644
--- a/drivers/usb/musb/musb_debugfs.c
+++ b/drivers/usb/musb/musb_debugfs.c
@@ -33,11 +33,7 @@
 
 #include <linux/module.h>
 #include <linux/kernel.h>
-#include <linux/sched.h>
 #include <linux/init.h>
-#include <linux/list.h>
-#include <linux/platform_device.h>
-#include <linux/io.h>
 #include <linux/debugfs.h>
 #include <linux/seq_file.h>
 
@@ -46,10 +42,6 @@
 #include "musb_core.h"
 #include "musb_debug.h"
 
-#ifdef CONFIG_ARCH_DAVINCI
-#include "davinci.h"
-#endif
-
 struct musb_register_map {
 	char			*name;
 	unsigned		offset;
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index 922148ff8d29..ac3d2eec20fe 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -40,8 +40,6 @@
 #include <linux/smp.h>
 #include <linux/spinlock.h>
 #include <linux/delay.h>
-#include <linux/moduleparam.h>
-#include <linux/stat.h>
 #include <linux/dma-mapping.h>
 #include <linux/slab.h>
 
@@ -1844,7 +1842,7 @@ int __init musb_gadget_setup(struct musb *musb)
 	 */
 
 	musb->g.ops = &musb_gadget_operations;
-	musb->g.is_dualspeed = 1;
+	musb->g.max_speed = USB_SPEED_HIGH;
 	musb->g.speed = USB_SPEED_UNKNOWN;
 
 	/* this "gadget" abstracts/virtualizes the controller */
@@ -1903,7 +1901,7 @@ static int musb_gadget_start(struct usb_gadget *g,
 	unsigned long		flags;
 	int			retval = -EINVAL;
 
-	if (driver->speed < USB_SPEED_HIGH)
+	if (driver->max_speed < USB_SPEED_HIGH)
 		goto err0;
 
 	pm_runtime_get_sync(musb->controller);
diff --git a/drivers/usb/musb/musb_gadget_ep0.c b/drivers/usb/musb/musb_gadget_ep0.c
index 6a0d0467ec74..e40d7647caf1 100644
--- a/drivers/usb/musb/musb_gadget_ep0.c
+++ b/drivers/usb/musb/musb_gadget_ep0.c
@@ -37,7 +37,6 @@
 #include <linux/list.h>
 #include <linux/timer.h>
 #include <linux/spinlock.h>
-#include <linux/init.h>
 #include <linux/device.h>
 #include <linux/interrupt.h>
 
diff --git a/drivers/usb/musb/musb_io.h b/drivers/usb/musb/musb_io.h
index 03c6ccdbb3be..e61aa95f2d2a 100644
--- a/drivers/usb/musb/musb_io.h
+++ b/drivers/usb/musb/musb_io.h
@@ -74,7 +74,7 @@ static inline void musb_writel(void __iomem *addr, unsigned offset, u32 data)
 	{ __raw_writel(data, addr + offset); }
 
 
-#ifdef CONFIG_USB_MUSB_TUSB6010
+#if defined(CONFIG_USB_MUSB_TUSB6010) || defined (CONFIG_USB_MUSB_TUSB6010_MODULE)
 
 /*
  * TUSB6010 doesn't allow 8-bit access; 16-bit access is the minimum.
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index ba85f273e487..c27bbbf32b52 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -29,7 +29,6 @@
 #include <linux/sched.h>
 #include <linux/init.h>
 #include <linux/list.h>
-#include <linux/clk.h>
 #include <linux/io.h>
 #include <linux/platform_device.h>
 #include <linux/dma-mapping.h>
@@ -228,21 +227,25 @@ static int musb_otg_notifications(struct notifier_block *nb,
 		unsigned long event, void *unused)
 {
 	struct musb	*musb = container_of(nb, struct musb, nb);
+
+	musb->xceiv_event = event;
+	schedule_work(&musb->otg_notifier_work);
+
+	return 0;
+}
+
+static void musb_otg_notifier_work(struct work_struct *data_notifier_work)
+{
+	struct musb *musb = container_of(data_notifier_work, struct musb, otg_notifier_work);
 	struct device *dev = musb->controller;
 	struct musb_hdrc_platform_data *pdata = dev->platform_data;
 	struct omap_musb_board_data *data = pdata->board_data;
 
-	switch (event) {
+	switch (musb->xceiv_event) {
 	case USB_EVENT_ID:
 		dev_dbg(musb->controller, "ID GND\n");
 
-		if (is_otg_enabled(musb)) {
-			if (musb->gadget_driver) {
-				pm_runtime_get_sync(musb->controller);
-				otg_init(musb->xceiv);
-				omap2430_musb_set_vbus(musb, 1);
-			}
-		} else {
+		if (!is_otg_enabled(musb) || musb->gadget_driver) {
 			pm_runtime_get_sync(musb->controller);
 			otg_init(musb->xceiv);
 			omap2430_musb_set_vbus(musb, 1);
@@ -274,10 +277,7 @@ static int musb_otg_notifications(struct notifier_block *nb,
 		break;
 	default:
 		dev_dbg(musb->controller, "ID float\n");
-		return NOTIFY_DONE;
 	}
-
-	return NOTIFY_OK;
 }
 
 static int omap2430_musb_init(struct musb *musb)
@@ -297,6 +297,8 @@ static int omap2430_musb_init(struct musb *musb)
 		return -ENODEV;
 	}
 
+	INIT_WORK(&musb->otg_notifier_work, musb_otg_notifier_work);
+
 	status = pm_runtime_get_sync(dev);
 	if (status < 0) {
 		dev_err(dev, "pm_runtime_get_sync FAILED");
@@ -334,7 +336,6 @@ static int omap2430_musb_init(struct musb *musb)
 	return 0;
 
 err1:
-	pm_runtime_disable(dev);
 	return status;
 }
 
@@ -350,20 +351,19 @@ static void omap2430_musb_enable(struct musb *musb)
 
 	case USB_EVENT_ID:
 		otg_init(musb->xceiv);
-		if (data->interface_type == MUSB_INTERFACE_UTMI) {
-			devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
-			/* start the session */
-			devctl |= MUSB_DEVCTL_SESSION;
-			musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
-			while (musb_readb(musb->mregs, MUSB_DEVCTL) &
-						MUSB_DEVCTL_BDEVICE) {
-				cpu_relax();
-
-				if (time_after(jiffies, timeout)) {
-					dev_err(musb->controller,
-					"configured as A device timeout");
-					break;
-				}
+		if (data->interface_type != MUSB_INTERFACE_UTMI)
+			break;
+		devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
+		/* start the session */
+		devctl |= MUSB_DEVCTL_SESSION;
+		musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
+		while (musb_readb(musb->mregs, MUSB_DEVCTL) &
+				MUSB_DEVCTL_BDEVICE) {
+			cpu_relax();
+
+			if (time_after(jiffies, timeout)) {
+				dev_err(dev, "configured as A device timeout");
+				break;
 			}
 		}
 		break;
@@ -478,7 +478,6 @@ static int __exit omap2430_remove(struct platform_device *pdev)
 	platform_device_del(glue->musb);
 	platform_device_put(glue->musb);
 	pm_runtime_put(&pdev->dev);
-	pm_runtime_disable(&pdev->dev);
 	kfree(glue);
 
 	return 0;
@@ -491,6 +490,9 @@ static int omap2430_runtime_suspend(struct device *dev)
 	struct omap2430_glue		*glue = dev_get_drvdata(dev);
 	struct musb			*musb = glue_to_musb(glue);
 
+	musb->context.otg_interfsel = musb_readl(musb->mregs,
+						OTG_INTERFSEL);
+
 	omap2430_low_level_exit(musb);
 	otg_set_suspend(musb->xceiv, 1);
 
@@ -503,6 +505,9 @@ static int omap2430_runtime_resume(struct device *dev)
 	struct musb			*musb = glue_to_musb(glue);
 
 	omap2430_low_level_init(musb);
+	musb_writel(musb->mregs, OTG_INTERFSEL,
+					musb->context.otg_interfsel);
+
 	otg_set_suspend(musb->xceiv, 0);
 
 	return 0;
diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c
index ec1480191f78..1f405616e6cd 100644
--- a/drivers/usb/musb/tusb6010.c
+++ b/drivers/usb/musb/tusb6010.c
@@ -56,6 +56,7 @@ u8 tusb_get_revision(struct musb *musb)
 
 	return rev;
 }
+EXPORT_SYMBOL_GPL(tusb_get_revision);
 
 static int tusb_print_revision(struct musb *musb)
 {
diff --git a/drivers/usb/musb/ux500_dma.c b/drivers/usb/musb/ux500_dma.c
index ef4333f4bbe0..a163632877af 100644
--- a/drivers/usb/musb/ux500_dma.c
+++ b/drivers/usb/musb/ux500_dma.c
@@ -37,7 +37,6 @@ struct ux500_dma_channel {
 	struct dma_channel channel;
 	struct ux500_dma_controller *controller;
 	struct musb_hw_ep *hw_ep;
-	struct work_struct channel_work;
 	struct dma_chan *dma_chan;
 	unsigned int cur_len;
 	dma_cookie_t cookie;
@@ -56,31 +55,11 @@ struct ux500_dma_controller {
 	dma_addr_t phy_base;
 };
 
-/* Work function invoked from DMA callback to handle tx transfers. */
-static void ux500_tx_work(struct work_struct *data)
-{
-	struct ux500_dma_channel *ux500_channel = container_of(data,
-		struct ux500_dma_channel, channel_work);
-	struct musb_hw_ep       *hw_ep = ux500_channel->hw_ep;
-	struct musb *musb = hw_ep->musb;
-	unsigned long flags;
-
-	dev_dbg(musb->controller, "DMA tx transfer done on hw_ep=%d\n",
-		hw_ep->epnum);
-
-	spin_lock_irqsave(&musb->lock, flags);
-	ux500_channel->channel.actual_len = ux500_channel->cur_len;
-	ux500_channel->channel.status = MUSB_DMA_STATUS_FREE;
-	musb_dma_completion(musb, hw_ep->epnum,
-				ux500_channel->is_tx);
-	spin_unlock_irqrestore(&musb->lock, flags);
-}
-
 /* Work function invoked from DMA callback to handle rx transfers. */
-static void ux500_rx_work(struct work_struct *data)
+void ux500_dma_callback(void *private_data)
 {
-	struct ux500_dma_channel *ux500_channel = container_of(data,
-		struct ux500_dma_channel, channel_work);
+	struct dma_channel *channel = private_data;
+	struct ux500_dma_channel *ux500_channel = channel->private_data;
 	struct musb_hw_ep       *hw_ep = ux500_channel->hw_ep;
 	struct musb *musb = hw_ep->musb;
 	unsigned long flags;
@@ -94,14 +73,7 @@ static void ux500_rx_work(struct work_struct *data)
 	musb_dma_completion(musb, hw_ep->epnum,
 		ux500_channel->is_tx);
 	spin_unlock_irqrestore(&musb->lock, flags);
-}
-
-void ux500_dma_callback(void *private_data)
-{
-	struct dma_channel *channel = (struct dma_channel *)private_data;
-	struct ux500_dma_channel *ux500_channel = channel->private_data;
 
-	schedule_work(&ux500_channel->channel_work);
 }
 
 static bool ux500_configure_channel(struct dma_channel *channel,
@@ -330,7 +302,6 @@ static int ux500_dma_controller_start(struct dma_controller *c)
 	void **param_array;
 	struct ux500_dma_channel *channel_array;
 	u32 ch_count;
-	void (*musb_channel_work)(struct work_struct *);
 	dma_cap_mask_t mask;
 
 	if ((data->num_rx_channels > UX500_MUSB_DMA_NUM_RX_CHANNELS) ||
@@ -347,7 +318,6 @@ static int ux500_dma_controller_start(struct dma_controller *c)
 	channel_array = controller->rx_channel;
 	ch_count = data->num_rx_channels;
 	param_array = data->dma_rx_param_array;
-	musb_channel_work = ux500_rx_work;
 
 	for (dir = 0; dir < 2; dir++) {
 		for (ch_num = 0; ch_num < ch_count; ch_num++) {
@@ -374,15 +344,12 @@ static int ux500_dma_controller_start(struct dma_controller *c)
 				return -EBUSY;
 			}
 
-			INIT_WORK(&ux500_channel->channel_work,
-				musb_channel_work);
 		}
 
 		/* Prepare the loop for TX channels */
 		channel_array = controller->tx_channel;
 		ch_count = data->num_tx_channels;
 		param_array = data->dma_tx_param_array;
-		musb_channel_work = ux500_tx_work;
 		is_tx = 1;
 	}
 
diff --git a/drivers/usb/otg/Kconfig b/drivers/usb/otg/Kconfig
index c66481ad98d7..2a25955881fc 100644
--- a/drivers/usb/otg/Kconfig
+++ b/drivers/usb/otg/Kconfig
@@ -82,9 +82,9 @@ config NOP_USB_XCEIV
 	tristate "NOP USB Transceiver Driver"
 	select USB_OTG_UTILS
 	help
-	 this driver is to be used by all the usb transceiver which are either
-	 built-in with usb ip or which are autonomous and doesn't require any
-	 phy programming such as ISP1x04 etc.
+	  This driver is to be used by all the usb transceiver which are either
+	  built-in with usb ip or which are autonomous and doesn't require any
+	  phy programming such as ISP1x04 etc.
 
 config USB_LANGWELL_OTG
 	tristate "Intel Langwell USB OTG dual-role support"
@@ -114,13 +114,13 @@ config USB_MSM_OTG
 	  has an external PHY.
 
 config AB8500_USB
-        tristate "AB8500 USB Transceiver Driver"
-        depends on AB8500_CORE
-        select USB_OTG_UTILS
-        help
-          Enable this to support the USB OTG transceiver in AB8500 chip.
-          This transceiver supports high and full speed devices plus,
-          in host mode, low speed.
+	tristate "AB8500 USB Transceiver Driver"
+	depends on AB8500_CORE
+	select USB_OTG_UTILS
+	help
+	  Enable this to support the USB OTG transceiver in AB8500 chip.
+	  This transceiver supports high and full speed devices plus,
+	  in host mode, low speed.
 
 config FSL_USB2_OTG
 	bool "Freescale USB OTG Transceiver Driver"
@@ -130,4 +130,16 @@ config FSL_USB2_OTG
 	help
 	  Enable this to support Freescale USB OTG transceiver.
 
+config USB_MV_OTG
+	tristate "Marvell USB OTG support"
+	depends on USB_MV_UDC
+	select USB_OTG
+	select USB_OTG_UTILS
+	help
+	  Say Y here if you want to build Marvell USB OTG transciever
+	  driver in kernel (including PXA and MMP series). This driver
+	  implements role switch between EHCI host driver and gadget driver.
+
+	  To compile this driver as a module, choose M here.
+
 endif # USB || OTG
diff --git a/drivers/usb/otg/Makefile b/drivers/usb/otg/Makefile
index 566655c53331..b2c5a9598637 100644
--- a/drivers/usb/otg/Makefile
+++ b/drivers/usb/otg/Makefile
@@ -21,3 +21,4 @@ obj-$(CONFIG_USB_MSM_OTG)	+= msm_otg.o
 obj-$(CONFIG_AB8500_USB)	+= ab8500-usb.o
 fsl_usb2_otg-objs		:= fsl_otg.o otg_fsm.o
 obj-$(CONFIG_FSL_USB2_OTG)	+= fsl_usb2_otg.o
+obj-$(CONFIG_USB_MV_OTG)	+= mv_otg.o
diff --git a/drivers/usb/otg/fsl_otg.c b/drivers/usb/otg/fsl_otg.c
index 2d9cc445fc73..a190850d2d3b 100644
--- a/drivers/usb/otg/fsl_otg.c
+++ b/drivers/usb/otg/fsl_otg.c
@@ -1151,18 +1151,7 @@ struct platform_driver fsl_otg_driver = {
 	},
 };
 
-static int __init fsl_usb_otg_init(void)
-{
-	pr_info(DRIVER_INFO "\n");
-	return platform_driver_register(&fsl_otg_driver);
-}
-module_init(fsl_usb_otg_init);
-
-static void __exit fsl_usb_otg_exit(void)
-{
-	platform_driver_unregister(&fsl_otg_driver);
-}
-module_exit(fsl_usb_otg_exit);
+module_platform_driver(fsl_otg_driver);
 
 MODULE_DESCRIPTION(DRIVER_INFO);
 MODULE_AUTHOR(DRIVER_AUTHOR);
diff --git a/drivers/usb/otg/mv_otg.c b/drivers/usb/otg/mv_otg.c
new file mode 100644
index 000000000000..db0d4fcdc8e2
--- /dev/null
+++ b/drivers/usb/otg/mv_otg.c
@@ -0,0 +1,957 @@
+/*
+ * Copyright (C) 2011 Marvell International Ltd. All rights reserved.
+ * Author: Chao Xie <chao.xie@marvell.com>
+ *	   Neil Zhang <zhangwm@marvell.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/io.h>
+#include <linux/uaccess.h>
+#include <linux/device.h>
+#include <linux/proc_fs.h>
+#include <linux/clk.h>
+#include <linux/workqueue.h>
+#include <linux/platform_device.h>
+
+#include <linux/usb.h>
+#include <linux/usb/ch9.h>
+#include <linux/usb/otg.h>
+#include <linux/usb/gadget.h>
+#include <linux/usb/hcd.h>
+#include <linux/platform_data/mv_usb.h>
+
+#include "mv_otg.h"
+
+#define	DRIVER_DESC	"Marvell USB OTG transceiver driver"
+#define	DRIVER_VERSION	"Jan 20, 2010"
+
+MODULE_DESCRIPTION(DRIVER_DESC);
+MODULE_VERSION(DRIVER_VERSION);
+MODULE_LICENSE("GPL");
+
+static const char driver_name[] = "mv-otg";
+
+static char *state_string[] = {
+	"undefined",
+	"b_idle",
+	"b_srp_init",
+	"b_peripheral",
+	"b_wait_acon",
+	"b_host",
+	"a_idle",
+	"a_wait_vrise",
+	"a_wait_bcon",
+	"a_host",
+	"a_suspend",
+	"a_peripheral",
+	"a_wait_vfall",
+	"a_vbus_err"
+};
+
+static int mv_otg_set_vbus(struct otg_transceiver *otg, bool on)
+{
+	struct mv_otg *mvotg = container_of(otg, struct mv_otg, otg);
+	if (mvotg->pdata->set_vbus == NULL)
+		return -ENODEV;
+
+	return mvotg->pdata->set_vbus(on);
+}
+
+static int mv_otg_set_host(struct otg_transceiver *otg,
+			   struct usb_bus *host)
+{
+	otg->host = host;
+
+	return 0;
+}
+
+static int mv_otg_set_peripheral(struct otg_transceiver *otg,
+				 struct usb_gadget *gadget)
+{
+	otg->gadget = gadget;
+
+	return 0;
+}
+
+static void mv_otg_run_state_machine(struct mv_otg *mvotg,
+				     unsigned long delay)
+{
+	dev_dbg(&mvotg->pdev->dev, "transceiver is updated\n");
+	if (!mvotg->qwork)
+		return;
+
+	queue_delayed_work(mvotg->qwork, &mvotg->work, delay);
+}
+
+static void mv_otg_timer_await_bcon(unsigned long data)
+{
+	struct mv_otg *mvotg = (struct mv_otg *) data;
+
+	mvotg->otg_ctrl.a_wait_bcon_timeout = 1;
+
+	dev_info(&mvotg->pdev->dev, "B Device No Response!\n");
+
+	if (spin_trylock(&mvotg->wq_lock)) {
+		mv_otg_run_state_machine(mvotg, 0);
+		spin_unlock(&mvotg->wq_lock);
+	}
+}
+
+static int mv_otg_cancel_timer(struct mv_otg *mvotg, unsigned int id)
+{
+	struct timer_list *timer;
+
+	if (id >= OTG_TIMER_NUM)
+		return -EINVAL;
+
+	timer = &mvotg->otg_ctrl.timer[id];
+
+	if (timer_pending(timer))
+		del_timer(timer);
+
+	return 0;
+}
+
+static int mv_otg_set_timer(struct mv_otg *mvotg, unsigned int id,
+			    unsigned long interval,
+			    void (*callback) (unsigned long))
+{
+	struct timer_list *timer;
+
+	if (id >= OTG_TIMER_NUM)
+		return -EINVAL;
+
+	timer = &mvotg->otg_ctrl.timer[id];
+	if (timer_pending(timer)) {
+		dev_err(&mvotg->pdev->dev, "Timer%d is already running\n", id);
+		return -EBUSY;
+	}
+
+	init_timer(timer);
+	timer->data = (unsigned long) mvotg;
+	timer->function = callback;
+	timer->expires = jiffies + interval;
+	add_timer(timer);
+
+	return 0;
+}
+
+static int mv_otg_reset(struct mv_otg *mvotg)
+{
+	unsigned int loops;
+	u32 tmp;
+
+	/* Stop the controller */
+	tmp = readl(&mvotg->op_regs->usbcmd);
+	tmp &= ~USBCMD_RUN_STOP;
+	writel(tmp, &mvotg->op_regs->usbcmd);
+
+	/* Reset the controller to get default values */
+	writel(USBCMD_CTRL_RESET, &mvotg->op_regs->usbcmd);
+
+	loops = 500;
+	while (readl(&mvotg->op_regs->usbcmd) & USBCMD_CTRL_RESET) {
+		if (loops == 0) {
+			dev_err(&mvotg->pdev->dev,
+				"Wait for RESET completed TIMEOUT\n");
+			return -ETIMEDOUT;
+		}
+		loops--;
+		udelay(20);
+	}
+
+	writel(0x0, &mvotg->op_regs->usbintr);
+	tmp = readl(&mvotg->op_regs->usbsts);
+	writel(tmp, &mvotg->op_regs->usbsts);
+
+	return 0;
+}
+
+static void mv_otg_init_irq(struct mv_otg *mvotg)
+{
+	u32 otgsc;
+
+	mvotg->irq_en = OTGSC_INTR_A_SESSION_VALID
+	    | OTGSC_INTR_A_VBUS_VALID;
+	mvotg->irq_status = OTGSC_INTSTS_A_SESSION_VALID
+	    | OTGSC_INTSTS_A_VBUS_VALID;
+
+	if (mvotg->pdata->vbus == NULL) {
+		mvotg->irq_en |= OTGSC_INTR_B_SESSION_VALID
+		    | OTGSC_INTR_B_SESSION_END;
+		mvotg->irq_status |= OTGSC_INTSTS_B_SESSION_VALID
+		    | OTGSC_INTSTS_B_SESSION_END;
+	}
+
+	if (mvotg->pdata->id == NULL) {
+		mvotg->irq_en |= OTGSC_INTR_USB_ID;
+		mvotg->irq_status |= OTGSC_INTSTS_USB_ID;
+	}
+
+	otgsc = readl(&mvotg->op_regs->otgsc);
+	otgsc |= mvotg->irq_en;
+	writel(otgsc, &mvotg->op_regs->otgsc);
+}
+
+static void mv_otg_start_host(struct mv_otg *mvotg, int on)
+{
+	struct otg_transceiver *otg = &mvotg->otg;
+	struct usb_hcd *hcd;
+
+	if (!otg->host)
+		return;
+
+	dev_info(&mvotg->pdev->dev, "%s host\n", on ? "start" : "stop");
+
+	hcd = bus_to_hcd(otg->host);
+
+	if (on)
+		usb_add_hcd(hcd, hcd->irq, IRQF_SHARED);
+	else
+		usb_remove_hcd(hcd);
+}
+
+static void mv_otg_start_periphrals(struct mv_otg *mvotg, int on)
+{
+	struct otg_transceiver *otg = &mvotg->otg;
+
+	if (!otg->gadget)
+		return;
+
+	dev_info(otg->dev, "gadget %s\n", on ? "on" : "off");
+
+	if (on)
+		usb_gadget_vbus_connect(otg->gadget);
+	else
+		usb_gadget_vbus_disconnect(otg->gadget);
+}
+
+static void otg_clock_enable(struct mv_otg *mvotg)
+{
+	unsigned int i;
+
+	for (i = 0; i < mvotg->clknum; i++)
+		clk_enable(mvotg->clk[i]);
+}
+
+static void otg_clock_disable(struct mv_otg *mvotg)
+{
+	unsigned int i;
+
+	for (i = 0; i < mvotg->clknum; i++)
+		clk_disable(mvotg->clk[i]);
+}
+
+static int mv_otg_enable_internal(struct mv_otg *mvotg)
+{
+	int retval = 0;
+
+	if (mvotg->active)
+		return 0;
+
+	dev_dbg(&mvotg->pdev->dev, "otg enabled\n");
+
+	otg_clock_enable(mvotg);
+	if (mvotg->pdata->phy_init) {
+		retval = mvotg->pdata->phy_init(mvotg->phy_regs);
+		if (retval) {
+			dev_err(&mvotg->pdev->dev,
+				"init phy error %d\n", retval);
+			otg_clock_disable(mvotg);
+			return retval;
+		}
+	}
+	mvotg->active = 1;
+
+	return 0;
+
+}
+
+static int mv_otg_enable(struct mv_otg *mvotg)
+{
+	if (mvotg->clock_gating)
+		return mv_otg_enable_internal(mvotg);
+
+	return 0;
+}
+
+static void mv_otg_disable_internal(struct mv_otg *mvotg)
+{
+	if (mvotg->active) {
+		dev_dbg(&mvotg->pdev->dev, "otg disabled\n");
+		if (mvotg->pdata->phy_deinit)
+			mvotg->pdata->phy_deinit(mvotg->phy_regs);
+		otg_clock_disable(mvotg);
+		mvotg->active = 0;
+	}
+}
+
+static void mv_otg_disable(struct mv_otg *mvotg)
+{
+	if (mvotg->clock_gating)
+		mv_otg_disable_internal(mvotg);
+}
+
+static void mv_otg_update_inputs(struct mv_otg *mvotg)
+{
+	struct mv_otg_ctrl *otg_ctrl = &mvotg->otg_ctrl;
+	u32 otgsc;
+
+	otgsc = readl(&mvotg->op_regs->otgsc);
+
+	if (mvotg->pdata->vbus) {
+		if (mvotg->pdata->vbus->poll() == VBUS_HIGH) {
+			otg_ctrl->b_sess_vld = 1;
+			otg_ctrl->b_sess_end = 0;
+		} else {
+			otg_ctrl->b_sess_vld = 0;
+			otg_ctrl->b_sess_end = 1;
+		}
+	} else {
+		otg_ctrl->b_sess_vld = !!(otgsc & OTGSC_STS_B_SESSION_VALID);
+		otg_ctrl->b_sess_end = !!(otgsc & OTGSC_STS_B_SESSION_END);
+	}
+
+	if (mvotg->pdata->id)
+		otg_ctrl->id = !!mvotg->pdata->id->poll();
+	else
+		otg_ctrl->id = !!(otgsc & OTGSC_STS_USB_ID);
+
+	if (mvotg->pdata->otg_force_a_bus_req && !otg_ctrl->id)
+		otg_ctrl->a_bus_req = 1;
+
+	otg_ctrl->a_sess_vld = !!(otgsc & OTGSC_STS_A_SESSION_VALID);
+	otg_ctrl->a_vbus_vld = !!(otgsc & OTGSC_STS_A_VBUS_VALID);
+
+	dev_dbg(&mvotg->pdev->dev, "%s: ", __func__);
+	dev_dbg(&mvotg->pdev->dev, "id %d\n", otg_ctrl->id);
+	dev_dbg(&mvotg->pdev->dev, "b_sess_vld %d\n", otg_ctrl->b_sess_vld);
+	dev_dbg(&mvotg->pdev->dev, "b_sess_end %d\n", otg_ctrl->b_sess_end);
+	dev_dbg(&mvotg->pdev->dev, "a_vbus_vld %d\n", otg_ctrl->a_vbus_vld);
+	dev_dbg(&mvotg->pdev->dev, "a_sess_vld %d\n", otg_ctrl->a_sess_vld);
+}
+
+static void mv_otg_update_state(struct mv_otg *mvotg)
+{
+	struct mv_otg_ctrl *otg_ctrl = &mvotg->otg_ctrl;
+	struct otg_transceiver *otg = &mvotg->otg;
+	int old_state = otg->state;
+
+	switch (old_state) {
+	case OTG_STATE_UNDEFINED:
+		otg->state = OTG_STATE_B_IDLE;
+		/* FALL THROUGH */
+	case OTG_STATE_B_IDLE:
+		if (otg_ctrl->id == 0)
+			otg->state = OTG_STATE_A_IDLE;
+		else if (otg_ctrl->b_sess_vld)
+			otg->state = OTG_STATE_B_PERIPHERAL;
+		break;
+	case OTG_STATE_B_PERIPHERAL:
+		if (!otg_ctrl->b_sess_vld || otg_ctrl->id == 0)
+			otg->state = OTG_STATE_B_IDLE;
+		break;
+	case OTG_STATE_A_IDLE:
+		if (otg_ctrl->id)
+			otg->state = OTG_STATE_B_IDLE;
+		else if (!(otg_ctrl->a_bus_drop) &&
+			 (otg_ctrl->a_bus_req || otg_ctrl->a_srp_det))
+			otg->state = OTG_STATE_A_WAIT_VRISE;
+		break;
+	case OTG_STATE_A_WAIT_VRISE:
+		if (otg_ctrl->a_vbus_vld)
+			otg->state = OTG_STATE_A_WAIT_BCON;
+		break;
+	case OTG_STATE_A_WAIT_BCON:
+		if (otg_ctrl->id || otg_ctrl->a_bus_drop
+		    || otg_ctrl->a_wait_bcon_timeout) {
+			mv_otg_cancel_timer(mvotg, A_WAIT_BCON_TIMER);
+			mvotg->otg_ctrl.a_wait_bcon_timeout = 0;
+			otg->state = OTG_STATE_A_WAIT_VFALL;
+			otg_ctrl->a_bus_req = 0;
+		} else if (!otg_ctrl->a_vbus_vld) {
+			mv_otg_cancel_timer(mvotg, A_WAIT_BCON_TIMER);
+			mvotg->otg_ctrl.a_wait_bcon_timeout = 0;
+			otg->state = OTG_STATE_A_VBUS_ERR;
+		} else if (otg_ctrl->b_conn) {
+			mv_otg_cancel_timer(mvotg, A_WAIT_BCON_TIMER);
+			mvotg->otg_ctrl.a_wait_bcon_timeout = 0;
+			otg->state = OTG_STATE_A_HOST;
+		}
+		break;
+	case OTG_STATE_A_HOST:
+		if (otg_ctrl->id || !otg_ctrl->b_conn
+		    || otg_ctrl->a_bus_drop)
+			otg->state = OTG_STATE_A_WAIT_BCON;
+		else if (!otg_ctrl->a_vbus_vld)
+			otg->state = OTG_STATE_A_VBUS_ERR;
+		break;
+	case OTG_STATE_A_WAIT_VFALL:
+		if (otg_ctrl->id
+		    || (!otg_ctrl->b_conn && otg_ctrl->a_sess_vld)
+		    || otg_ctrl->a_bus_req)
+			otg->state = OTG_STATE_A_IDLE;
+		break;
+	case OTG_STATE_A_VBUS_ERR:
+		if (otg_ctrl->id || otg_ctrl->a_clr_err
+		    || otg_ctrl->a_bus_drop) {
+			otg_ctrl->a_clr_err = 0;
+			otg->state = OTG_STATE_A_WAIT_VFALL;
+		}
+		break;
+	default:
+		break;
+	}
+}
+
+static void mv_otg_work(struct work_struct *work)
+{
+	struct mv_otg *mvotg;
+	struct otg_transceiver *otg;
+	int old_state;
+
+	mvotg = container_of((struct delayed_work *)work, struct mv_otg, work);
+
+run:
+	/* work queue is single thread, or we need spin_lock to protect */
+	otg = &mvotg->otg;
+	old_state = otg->state;
+
+	if (!mvotg->active)
+		return;
+
+	mv_otg_update_inputs(mvotg);
+	mv_otg_update_state(mvotg);
+
+	if (old_state != otg->state) {
+		dev_info(&mvotg->pdev->dev, "change from state %s to %s\n",
+			 state_string[old_state],
+			 state_string[otg->state]);
+
+		switch (otg->state) {
+		case OTG_STATE_B_IDLE:
+			mvotg->otg.default_a = 0;
+			if (old_state == OTG_STATE_B_PERIPHERAL)
+				mv_otg_start_periphrals(mvotg, 0);
+			mv_otg_reset(mvotg);
+			mv_otg_disable(mvotg);
+			break;
+		case OTG_STATE_B_PERIPHERAL:
+			mv_otg_enable(mvotg);
+			mv_otg_start_periphrals(mvotg, 1);
+			break;
+		case OTG_STATE_A_IDLE:
+			mvotg->otg.default_a = 1;
+			mv_otg_enable(mvotg);
+			if (old_state == OTG_STATE_A_WAIT_VFALL)
+				mv_otg_start_host(mvotg, 0);
+			mv_otg_reset(mvotg);
+			break;
+		case OTG_STATE_A_WAIT_VRISE:
+			mv_otg_set_vbus(&mvotg->otg, 1);
+			break;
+		case OTG_STATE_A_WAIT_BCON:
+			if (old_state != OTG_STATE_A_HOST)
+				mv_otg_start_host(mvotg, 1);
+			mv_otg_set_timer(mvotg, A_WAIT_BCON_TIMER,
+					 T_A_WAIT_BCON,
+					 mv_otg_timer_await_bcon);
+			/*
+			 * Now, we directly enter A_HOST. So set b_conn = 1
+			 * here. In fact, it need host driver to notify us.
+			 */
+			mvotg->otg_ctrl.b_conn = 1;
+			break;
+		case OTG_STATE_A_HOST:
+			break;
+		case OTG_STATE_A_WAIT_VFALL:
+			/*
+			 * Now, we has exited A_HOST. So set b_conn = 0
+			 * here. In fact, it need host driver to notify us.
+			 */
+			mvotg->otg_ctrl.b_conn = 0;
+			mv_otg_set_vbus(&mvotg->otg, 0);
+			break;
+		case OTG_STATE_A_VBUS_ERR:
+			break;
+		default:
+			break;
+		}
+		goto run;
+	}
+}
+
+static irqreturn_t mv_otg_irq(int irq, void *dev)
+{
+	struct mv_otg *mvotg = dev;
+	u32 otgsc;
+
+	otgsc = readl(&mvotg->op_regs->otgsc);
+	writel(otgsc, &mvotg->op_regs->otgsc);
+
+	/*
+	 * if we have vbus, then the vbus detection for B-device
+	 * will be done by mv_otg_inputs_irq().
+	 */
+	if (mvotg->pdata->vbus)
+		if ((otgsc & OTGSC_STS_USB_ID) &&
+		    !(otgsc & OTGSC_INTSTS_USB_ID))
+			return IRQ_NONE;
+
+	if ((otgsc & mvotg->irq_status) == 0)
+		return IRQ_NONE;
+
+	mv_otg_run_state_machine(mvotg, 0);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t mv_otg_inputs_irq(int irq, void *dev)
+{
+	struct mv_otg *mvotg = dev;
+
+	/* The clock may disabled at this time */
+	if (!mvotg->active) {
+		mv_otg_enable(mvotg);
+		mv_otg_init_irq(mvotg);
+	}
+
+	mv_otg_run_state_machine(mvotg, 0);
+
+	return IRQ_HANDLED;
+}
+
+static ssize_t
+get_a_bus_req(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct mv_otg *mvotg = dev_get_drvdata(dev);
+	return scnprintf(buf, PAGE_SIZE, "%d\n",
+			 mvotg->otg_ctrl.a_bus_req);
+}
+
+static ssize_t
+set_a_bus_req(struct device *dev, struct device_attribute *attr,
+	      const char *buf, size_t count)
+{
+	struct mv_otg *mvotg = dev_get_drvdata(dev);
+
+	if (count > 2)
+		return -1;
+
+	/* We will use this interface to change to A device */
+	if (mvotg->otg.state != OTG_STATE_B_IDLE
+	    && mvotg->otg.state != OTG_STATE_A_IDLE)
+		return -1;
+
+	/* The clock may disabled and we need to set irq for ID detected */
+	mv_otg_enable(mvotg);
+	mv_otg_init_irq(mvotg);
+
+	if (buf[0] == '1') {
+		mvotg->otg_ctrl.a_bus_req = 1;
+		mvotg->otg_ctrl.a_bus_drop = 0;
+		dev_dbg(&mvotg->pdev->dev,
+			"User request: a_bus_req = 1\n");
+
+		if (spin_trylock(&mvotg->wq_lock)) {
+			mv_otg_run_state_machine(mvotg, 0);
+			spin_unlock(&mvotg->wq_lock);
+		}
+	}
+
+	return count;
+}
+
+static DEVICE_ATTR(a_bus_req, S_IRUGO | S_IWUSR, get_a_bus_req,
+		   set_a_bus_req);
+
+static ssize_t
+set_a_clr_err(struct device *dev, struct device_attribute *attr,
+	      const char *buf, size_t count)
+{
+	struct mv_otg *mvotg = dev_get_drvdata(dev);
+	if (!mvotg->otg.default_a)
+		return -1;
+
+	if (count > 2)
+		return -1;
+
+	if (buf[0] == '1') {
+		mvotg->otg_ctrl.a_clr_err = 1;
+		dev_dbg(&mvotg->pdev->dev,
+			"User request: a_clr_err = 1\n");
+	}
+
+	if (spin_trylock(&mvotg->wq_lock)) {
+		mv_otg_run_state_machine(mvotg, 0);
+		spin_unlock(&mvotg->wq_lock);
+	}
+
+	return count;
+}
+
+static DEVICE_ATTR(a_clr_err, S_IWUSR, NULL, set_a_clr_err);
+
+static ssize_t
+get_a_bus_drop(struct device *dev, struct device_attribute *attr,
+	       char *buf)
+{
+	struct mv_otg *mvotg = dev_get_drvdata(dev);
+	return scnprintf(buf, PAGE_SIZE, "%d\n",
+			 mvotg->otg_ctrl.a_bus_drop);
+}
+
+static ssize_t
+set_a_bus_drop(struct device *dev, struct device_attribute *attr,
+	       const char *buf, size_t count)
+{
+	struct mv_otg *mvotg = dev_get_drvdata(dev);
+	if (!mvotg->otg.default_a)
+		return -1;
+
+	if (count > 2)
+		return -1;
+
+	if (buf[0] == '0') {
+		mvotg->otg_ctrl.a_bus_drop = 0;
+		dev_dbg(&mvotg->pdev->dev,
+			"User request: a_bus_drop = 0\n");
+	} else if (buf[0] == '1') {
+		mvotg->otg_ctrl.a_bus_drop = 1;
+		mvotg->otg_ctrl.a_bus_req = 0;
+		dev_dbg(&mvotg->pdev->dev,
+			"User request: a_bus_drop = 1\n");
+		dev_dbg(&mvotg->pdev->dev,
+			"User request: and a_bus_req = 0\n");
+	}
+
+	if (spin_trylock(&mvotg->wq_lock)) {
+		mv_otg_run_state_machine(mvotg, 0);
+		spin_unlock(&mvotg->wq_lock);
+	}
+
+	return count;
+}
+
+static DEVICE_ATTR(a_bus_drop, S_IRUGO | S_IWUSR,
+		   get_a_bus_drop, set_a_bus_drop);
+
+static struct attribute *inputs_attrs[] = {
+	&dev_attr_a_bus_req.attr,
+	&dev_attr_a_clr_err.attr,
+	&dev_attr_a_bus_drop.attr,
+	NULL,
+};
+
+static struct attribute_group inputs_attr_group = {
+	.name = "inputs",
+	.attrs = inputs_attrs,
+};
+
+int mv_otg_remove(struct platform_device *pdev)
+{
+	struct mv_otg *mvotg = platform_get_drvdata(pdev);
+	int clk_i;
+
+	sysfs_remove_group(&mvotg->pdev->dev.kobj, &inputs_attr_group);
+
+	if (mvotg->irq)
+		free_irq(mvotg->irq, mvotg);
+
+	if (mvotg->pdata->vbus)
+		free_irq(mvotg->pdata->vbus->irq, mvotg);
+	if (mvotg->pdata->id)
+		free_irq(mvotg->pdata->id->irq, mvotg);
+
+	if (mvotg->qwork) {
+		flush_workqueue(mvotg->qwork);
+		destroy_workqueue(mvotg->qwork);
+	}
+
+	mv_otg_disable(mvotg);
+
+	if (mvotg->cap_regs)
+		iounmap(mvotg->cap_regs);
+
+	if (mvotg->phy_regs)
+		iounmap(mvotg->phy_regs);
+
+	for (clk_i = 0; clk_i <= mvotg->clknum; clk_i++)
+		clk_put(mvotg->clk[clk_i]);
+
+	otg_set_transceiver(NULL);
+	platform_set_drvdata(pdev, NULL);
+
+	kfree(mvotg);
+
+	return 0;
+}
+
+static int mv_otg_probe(struct platform_device *pdev)
+{
+	struct mv_usb_platform_data *pdata = pdev->dev.platform_data;
+	struct mv_otg *mvotg;
+	struct resource *r;
+	int retval = 0, clk_i, i;
+	size_t size;
+
+	if (pdata == NULL) {
+		dev_err(&pdev->dev, "failed to get platform data\n");
+		return -ENODEV;
+	}
+
+	size = sizeof(*mvotg) + sizeof(struct clk *) * pdata->clknum;
+	mvotg = kzalloc(size, GFP_KERNEL);
+	if (!mvotg) {
+		dev_err(&pdev->dev, "failed to allocate memory!\n");
+		return -ENOMEM;
+	}
+
+	platform_set_drvdata(pdev, mvotg);
+
+	mvotg->pdev = pdev;
+	mvotg->pdata = pdata;
+
+	mvotg->clknum = pdata->clknum;
+	for (clk_i = 0; clk_i < mvotg->clknum; clk_i++) {
+		mvotg->clk[clk_i] = clk_get(&pdev->dev, pdata->clkname[clk_i]);
+		if (IS_ERR(mvotg->clk[clk_i])) {
+			retval = PTR_ERR(mvotg->clk[clk_i]);
+			goto err_put_clk;
+		}
+	}
+
+	mvotg->qwork = create_singlethread_workqueue("mv_otg_queue");
+	if (!mvotg->qwork) {
+		dev_dbg(&pdev->dev, "cannot create workqueue for OTG\n");
+		retval = -ENOMEM;
+		goto err_put_clk;
+	}
+
+	INIT_DELAYED_WORK(&mvotg->work, mv_otg_work);
+
+	/* OTG common part */
+	mvotg->pdev = pdev;
+	mvotg->otg.dev = &pdev->dev;
+	mvotg->otg.label = driver_name;
+	mvotg->otg.set_host = mv_otg_set_host;
+	mvotg->otg.set_peripheral = mv_otg_set_peripheral;
+	mvotg->otg.set_vbus = mv_otg_set_vbus;
+	mvotg->otg.state = OTG_STATE_UNDEFINED;
+
+	for (i = 0; i < OTG_TIMER_NUM; i++)
+		init_timer(&mvotg->otg_ctrl.timer[i]);
+
+	r = platform_get_resource_byname(mvotg->pdev,
+					 IORESOURCE_MEM, "phyregs");
+	if (r == NULL) {
+		dev_err(&pdev->dev, "no phy I/O memory resource defined\n");
+		retval = -ENODEV;
+		goto err_destroy_workqueue;
+	}
+
+	mvotg->phy_regs = ioremap(r->start, resource_size(r));
+	if (mvotg->phy_regs == NULL) {
+		dev_err(&pdev->dev, "failed to map phy I/O memory\n");
+		retval = -EFAULT;
+		goto err_destroy_workqueue;
+	}
+
+	r = platform_get_resource_byname(mvotg->pdev,
+					 IORESOURCE_MEM, "capregs");
+	if (r == NULL) {
+		dev_err(&pdev->dev, "no I/O memory resource defined\n");
+		retval = -ENODEV;
+		goto err_unmap_phyreg;
+	}
+
+	mvotg->cap_regs = ioremap(r->start, resource_size(r));
+	if (mvotg->cap_regs == NULL) {
+		dev_err(&pdev->dev, "failed to map I/O memory\n");
+		retval = -EFAULT;
+		goto err_unmap_phyreg;
+	}
+
+	/* we will acces controller register, so enable the udc controller */
+	retval = mv_otg_enable_internal(mvotg);
+	if (retval) {
+		dev_err(&pdev->dev, "mv otg enable error %d\n", retval);
+		goto err_unmap_capreg;
+	}
+
+	mvotg->op_regs =
+		(struct mv_otg_regs __iomem *) ((unsigned long) mvotg->cap_regs
+			+ (readl(mvotg->cap_regs) & CAPLENGTH_MASK));
+
+	if (pdata->id) {
+		retval = request_threaded_irq(pdata->id->irq, NULL,
+					      mv_otg_inputs_irq,
+					      IRQF_ONESHOT, "id", mvotg);
+		if (retval) {
+			dev_info(&pdev->dev,
+				 "Failed to request irq for ID\n");
+			pdata->id = NULL;
+		}
+	}
+
+	if (pdata->vbus) {
+		mvotg->clock_gating = 1;
+		retval = request_threaded_irq(pdata->vbus->irq, NULL,
+					      mv_otg_inputs_irq,
+					      IRQF_ONESHOT, "vbus", mvotg);
+		if (retval) {
+			dev_info(&pdev->dev,
+				 "Failed to request irq for VBUS, "
+				 "disable clock gating\n");
+			mvotg->clock_gating = 0;
+			pdata->vbus = NULL;
+		}
+	}
+
+	if (pdata->disable_otg_clock_gating)
+		mvotg->clock_gating = 0;
+
+	mv_otg_reset(mvotg);
+	mv_otg_init_irq(mvotg);
+
+	r = platform_get_resource(mvotg->pdev, IORESOURCE_IRQ, 0);
+	if (r == NULL) {
+		dev_err(&pdev->dev, "no IRQ resource defined\n");
+		retval = -ENODEV;
+		goto err_disable_clk;
+	}
+
+	mvotg->irq = r->start;
+	if (request_irq(mvotg->irq, mv_otg_irq, IRQF_SHARED,
+			driver_name, mvotg)) {
+		dev_err(&pdev->dev, "Request irq %d for OTG failed\n",
+			mvotg->irq);
+		mvotg->irq = 0;
+		retval = -ENODEV;
+		goto err_disable_clk;
+	}
+
+	retval = otg_set_transceiver(&mvotg->otg);
+	if (retval < 0) {
+		dev_err(&pdev->dev, "can't register transceiver, %d\n",
+			retval);
+		goto err_free_irq;
+	}
+
+	retval = sysfs_create_group(&pdev->dev.kobj, &inputs_attr_group);
+	if (retval < 0) {
+		dev_dbg(&pdev->dev,
+			"Can't register sysfs attr group: %d\n", retval);
+		goto err_set_transceiver;
+	}
+
+	spin_lock_init(&mvotg->wq_lock);
+	if (spin_trylock(&mvotg->wq_lock)) {
+		mv_otg_run_state_machine(mvotg, 2 * HZ);
+		spin_unlock(&mvotg->wq_lock);
+	}
+
+	dev_info(&pdev->dev,
+		 "successful probe OTG device %s clock gating.\n",
+		 mvotg->clock_gating ? "with" : "without");
+
+	return 0;
+
+err_set_transceiver:
+	otg_set_transceiver(NULL);
+err_free_irq:
+	free_irq(mvotg->irq, mvotg);
+err_disable_clk:
+	if (pdata->vbus)
+		free_irq(pdata->vbus->irq, mvotg);
+	if (pdata->id)
+		free_irq(pdata->id->irq, mvotg);
+	mv_otg_disable_internal(mvotg);
+err_unmap_capreg:
+	iounmap(mvotg->cap_regs);
+err_unmap_phyreg:
+	iounmap(mvotg->phy_regs);
+err_destroy_workqueue:
+	flush_workqueue(mvotg->qwork);
+	destroy_workqueue(mvotg->qwork);
+err_put_clk:
+	for (clk_i--; clk_i >= 0; clk_i--)
+		clk_put(mvotg->clk[clk_i]);
+
+	platform_set_drvdata(pdev, NULL);
+	kfree(mvotg);
+
+	return retval;
+}
+
+#ifdef CONFIG_PM
+static int mv_otg_suspend(struct platform_device *pdev, pm_message_t state)
+{
+	struct mv_otg *mvotg = platform_get_drvdata(pdev);
+
+	if (mvotg->otg.state != OTG_STATE_B_IDLE) {
+		dev_info(&pdev->dev,
+			 "OTG state is not B_IDLE, it is %d!\n",
+			 mvotg->otg.state);
+		return -EAGAIN;
+	}
+
+	if (!mvotg->clock_gating)
+		mv_otg_disable_internal(mvotg);
+
+	return 0;
+}
+
+static int mv_otg_resume(struct platform_device *pdev)
+{
+	struct mv_otg *mvotg = platform_get_drvdata(pdev);
+	u32 otgsc;
+
+	if (!mvotg->clock_gating) {
+		mv_otg_enable_internal(mvotg);
+
+		otgsc = readl(&mvotg->op_regs->otgsc);
+		otgsc |= mvotg->irq_en;
+		writel(otgsc, &mvotg->op_regs->otgsc);
+
+		if (spin_trylock(&mvotg->wq_lock)) {
+			mv_otg_run_state_machine(mvotg, 0);
+			spin_unlock(&mvotg->wq_lock);
+		}
+	}
+	return 0;
+}
+#endif
+
+static struct platform_driver mv_otg_driver = {
+	.probe = mv_otg_probe,
+	.remove = __exit_p(mv_otg_remove),
+	.driver = {
+		   .owner = THIS_MODULE,
+		   .name = driver_name,
+		   },
+#ifdef CONFIG_PM
+	.suspend = mv_otg_suspend,
+	.resume = mv_otg_resume,
+#endif
+};
+
+static int __init mv_otg_init(void)
+{
+	return platform_driver_register(&mv_otg_driver);
+}
+
+static void __exit mv_otg_exit(void)
+{
+	platform_driver_unregister(&mv_otg_driver);
+}
+
+module_init(mv_otg_init);
+module_exit(mv_otg_exit);
diff --git a/drivers/usb/otg/mv_otg.h b/drivers/usb/otg/mv_otg.h
new file mode 100644
index 000000000000..be6ca1437645
--- /dev/null
+++ b/drivers/usb/otg/mv_otg.h
@@ -0,0 +1,165 @@
+/*
+ * Copyright (C) 2011 Marvell International Ltd. All rights reserved.
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#ifndef	__MV_USB_OTG_CONTROLLER__
+#define	__MV_USB_OTG_CONTROLLER__
+
+#include <linux/types.h>
+
+/* Command Register Bit Masks */
+#define USBCMD_RUN_STOP			(0x00000001)
+#define USBCMD_CTRL_RESET		(0x00000002)
+
+/* otgsc Register Bit Masks */
+#define OTGSC_CTRL_VUSB_DISCHARGE		0x00000001
+#define OTGSC_CTRL_VUSB_CHARGE			0x00000002
+#define OTGSC_CTRL_OTG_TERM			0x00000008
+#define OTGSC_CTRL_DATA_PULSING			0x00000010
+#define OTGSC_STS_USB_ID			0x00000100
+#define OTGSC_STS_A_VBUS_VALID			0x00000200
+#define OTGSC_STS_A_SESSION_VALID		0x00000400
+#define OTGSC_STS_B_SESSION_VALID		0x00000800
+#define OTGSC_STS_B_SESSION_END			0x00001000
+#define OTGSC_STS_1MS_TOGGLE			0x00002000
+#define OTGSC_STS_DATA_PULSING			0x00004000
+#define OTGSC_INTSTS_USB_ID			0x00010000
+#define OTGSC_INTSTS_A_VBUS_VALID		0x00020000
+#define OTGSC_INTSTS_A_SESSION_VALID		0x00040000
+#define OTGSC_INTSTS_B_SESSION_VALID		0x00080000
+#define OTGSC_INTSTS_B_SESSION_END		0x00100000
+#define OTGSC_INTSTS_1MS			0x00200000
+#define OTGSC_INTSTS_DATA_PULSING		0x00400000
+#define OTGSC_INTR_USB_ID			0x01000000
+#define OTGSC_INTR_A_VBUS_VALID			0x02000000
+#define OTGSC_INTR_A_SESSION_VALID		0x04000000
+#define OTGSC_INTR_B_SESSION_VALID		0x08000000
+#define OTGSC_INTR_B_SESSION_END		0x10000000
+#define OTGSC_INTR_1MS_TIMER			0x20000000
+#define OTGSC_INTR_DATA_PULSING			0x40000000
+
+#define CAPLENGTH_MASK		(0xff)
+
+/* Timer's interval, unit 10ms */
+#define T_A_WAIT_VRISE		100
+#define T_A_WAIT_BCON		2000
+#define T_A_AIDL_BDIS		100
+#define T_A_BIDL_ADIS		20
+#define T_B_ASE0_BRST		400
+#define T_B_SE0_SRP		300
+#define T_B_SRP_FAIL		2000
+#define T_B_DATA_PLS		10
+#define T_B_SRP_INIT		100
+#define T_A_SRP_RSPNS		10
+#define T_A_DRV_RSM		5
+
+enum otg_function {
+	OTG_B_DEVICE = 0,
+	OTG_A_DEVICE
+};
+
+enum mv_otg_timer {
+	A_WAIT_BCON_TIMER = 0,
+	OTG_TIMER_NUM
+};
+
+/* PXA OTG state machine */
+struct mv_otg_ctrl {
+	/* internal variables */
+	u8 a_set_b_hnp_en;	/* A-Device set b_hnp_en */
+	u8 b_srp_done;
+	u8 b_hnp_en;
+
+	/* OTG inputs */
+	u8 a_bus_drop;
+	u8 a_bus_req;
+	u8 a_clr_err;
+	u8 a_bus_resume;
+	u8 a_bus_suspend;
+	u8 a_conn;
+	u8 a_sess_vld;
+	u8 a_srp_det;
+	u8 a_vbus_vld;
+	u8 b_bus_req;		/* B-Device Require Bus */
+	u8 b_bus_resume;
+	u8 b_bus_suspend;
+	u8 b_conn;
+	u8 b_se0_srp;
+	u8 b_sess_end;
+	u8 b_sess_vld;
+	u8 id;
+	u8 a_suspend_req;
+
+	/*Timer event */
+	u8 a_aidl_bdis_timeout;
+	u8 b_ase0_brst_timeout;
+	u8 a_bidl_adis_timeout;
+	u8 a_wait_bcon_timeout;
+
+	struct timer_list timer[OTG_TIMER_NUM];
+};
+
+#define VUSBHS_MAX_PORTS	8
+
+struct mv_otg_regs {
+	u32 usbcmd;		/* Command register */
+	u32 usbsts;		/* Status register */
+	u32 usbintr;		/* Interrupt enable */
+	u32 frindex;		/* Frame index */
+	u32 reserved1[1];
+	u32 deviceaddr;		/* Device Address */
+	u32 eplistaddr;		/* Endpoint List Address */
+	u32 ttctrl;		/* HOST TT status and control */
+	u32 burstsize;		/* Programmable Burst Size */
+	u32 txfilltuning;	/* Host Transmit Pre-Buffer Packet Tuning */
+	u32 reserved[4];
+	u32 epnak;		/* Endpoint NAK */
+	u32 epnaken;		/* Endpoint NAK Enable */
+	u32 configflag;		/* Configured Flag register */
+	u32 portsc[VUSBHS_MAX_PORTS];	/* Port Status/Control x, x = 1..8 */
+	u32 otgsc;
+	u32 usbmode;		/* USB Host/Device mode */
+	u32 epsetupstat;	/* Endpoint Setup Status */
+	u32 epprime;		/* Endpoint Initialize */
+	u32 epflush;		/* Endpoint De-initialize */
+	u32 epstatus;		/* Endpoint Status */
+	u32 epcomplete;		/* Endpoint Interrupt On Complete */
+	u32 epctrlx[16];	/* Endpoint Control, where x = 0.. 15 */
+	u32 mcr;		/* Mux Control */
+	u32 isr;		/* Interrupt Status */
+	u32 ier;		/* Interrupt Enable */
+};
+
+struct mv_otg {
+	struct otg_transceiver otg;
+	struct mv_otg_ctrl otg_ctrl;
+
+	/* base address */
+	void __iomem *phy_regs;
+	void __iomem *cap_regs;
+	struct mv_otg_regs __iomem *op_regs;
+
+	struct platform_device *pdev;
+	int irq;
+	u32 irq_status;
+	u32 irq_en;
+
+	struct delayed_work work;
+	struct workqueue_struct *qwork;
+
+	spinlock_t wq_lock;
+
+	struct mv_usb_platform_data *pdata;
+
+	unsigned int active;
+	unsigned int clock_gating;
+	unsigned int clknum;
+	struct clk *clk[0];
+};
+
+#endif
diff --git a/drivers/usb/renesas_usbhs/common.c b/drivers/usb/renesas_usbhs/common.c
index 08c679c0dde5..e9a5b1d2615e 100644
--- a/drivers/usb/renesas_usbhs/common.c
+++ b/drivers/usb/renesas_usbhs/common.c
@@ -95,25 +95,15 @@ struct usbhs_priv *usbhs_pdev_to_priv(struct platform_device *pdev)
 /*
  *		syscfg functions
  */
-void usbhs_sys_clock_ctrl(struct usbhs_priv *priv, int enable)
+static void usbhs_sys_clock_ctrl(struct usbhs_priv *priv, int enable)
 {
 	usbhs_bset(priv, SYSCFG, SCKE, enable ? SCKE : 0);
 }
 
-void usbhs_sys_hispeed_ctrl(struct usbhs_priv *priv, int enable)
-{
-	usbhs_bset(priv, SYSCFG, HSE, enable ? HSE : 0);
-}
-
-void usbhs_sys_usb_ctrl(struct usbhs_priv *priv, int enable)
-{
-	usbhs_bset(priv, SYSCFG, USBE, enable ? USBE : 0);
-}
-
 void usbhs_sys_host_ctrl(struct usbhs_priv *priv, int enable)
 {
-	u16 mask = DCFM | DRPD | DPRPU;
-	u16 val  = DCFM | DRPD;
+	u16 mask = DCFM | DRPD | DPRPU | HSE | USBE;
+	u16 val  = DCFM | DRPD | HSE | USBE;
 	int has_otg = usbhs_get_dparam(priv, has_otg);
 
 	if (has_otg)
@@ -130,8 +120,8 @@ void usbhs_sys_host_ctrl(struct usbhs_priv *priv, int enable)
 
 void usbhs_sys_function_ctrl(struct usbhs_priv *priv, int enable)
 {
-	u16 mask = DCFM | DRPD | DPRPU;
-	u16 val  = DPRPU;
+	u16 mask = DCFM | DRPD | DPRPU | HSE | USBE;
+	u16 val  = DPRPU | HSE | USBE;
 
 	/*
 	 * if enable
@@ -142,6 +132,11 @@ void usbhs_sys_function_ctrl(struct usbhs_priv *priv, int enable)
 	usbhs_bset(priv, SYSCFG, mask, enable ? val : 0);
 }
 
+void usbhs_sys_set_test_mode(struct usbhs_priv *priv, u16 mode)
+{
+	usbhs_write(priv, TESTMODE, mode);
+}
+
 /*
  *		frame functions
  */
@@ -229,7 +224,7 @@ static void usbhsc_bus_init(struct usbhs_priv *priv)
 /*
  *		device configuration
  */
-int usbhs_set_device_speed(struct usbhs_priv *priv, int devnum,
+int usbhs_set_device_config(struct usbhs_priv *priv, int devnum,
 			   u16 upphub, u16 hubport, u16 speed)
 {
 	struct device *dev = usbhs_priv_to_dev(priv);
@@ -301,18 +296,25 @@ static u32 usbhsc_default_pipe_type[] = {
  */
 static void usbhsc_power_ctrl(struct usbhs_priv *priv, int enable)
 {
+	struct platform_device *pdev = usbhs_priv_to_pdev(priv);
 	struct device *dev = usbhs_priv_to_dev(priv);
 
 	if (enable) {
 		/* enable PM */
 		pm_runtime_get_sync(dev);
 
+		/* enable platform power */
+		usbhs_platform_call(priv, power_ctrl, pdev, priv->base, enable);
+
 		/* USB on */
 		usbhs_sys_clock_ctrl(priv, enable);
 	} else {
 		/* USB off */
 		usbhs_sys_clock_ctrl(priv, enable);
 
+		/* disable platform power */
+		usbhs_platform_call(priv, power_ctrl, pdev, priv->base, enable);
+
 		/* disable PM */
 		pm_runtime_put_sync(dev);
 	}
@@ -388,7 +390,7 @@ static void usbhsc_notify_hotplug(struct work_struct *work)
 	usbhsc_hotplug(priv);
 }
 
-int usbhsc_drvcllbck_notify_hotplug(struct platform_device *pdev)
+static int usbhsc_drvcllbck_notify_hotplug(struct platform_device *pdev)
 {
 	struct usbhs_priv *priv = usbhs_pdev_to_priv(pdev);
 	int delay = usbhs_get_dparam(priv, detection_delay);
@@ -398,7 +400,8 @@ int usbhsc_drvcllbck_notify_hotplug(struct platform_device *pdev)
 	 * To make sure safety context,
 	 * use workqueue for usbhs_notify_hotplug
 	 */
-	schedule_delayed_work(&priv->notify_hotplug_work, delay);
+	schedule_delayed_work(&priv->notify_hotplug_work,
+			      msecs_to_jiffies(delay));
 	return 0;
 }
 
@@ -637,18 +640,7 @@ static struct platform_driver renesas_usbhs_driver = {
 	.remove		= __devexit_p(usbhs_remove),
 };
 
-static int __init usbhs_init(void)
-{
-	return platform_driver_register(&renesas_usbhs_driver);
-}
-
-static void __exit usbhs_exit(void)
-{
-	platform_driver_unregister(&renesas_usbhs_driver);
-}
-
-module_init(usbhs_init);
-module_exit(usbhs_exit);
+module_platform_driver(renesas_usbhs_driver);
 
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("Renesas USB driver");
diff --git a/drivers/usb/renesas_usbhs/common.h b/drivers/usb/renesas_usbhs/common.h
index 8729da5c3be6..d79b3e27db95 100644
--- a/drivers/usb/renesas_usbhs/common.h
+++ b/drivers/usb/renesas_usbhs/common.h
@@ -33,6 +33,7 @@ struct usbhs_priv;
 #define SYSCFG		0x0000
 #define BUSWAIT		0x0002
 #define DVSTCTR		0x0008
+#define TESTMODE	0x000C
 #define CFIFO		0x0014
 #define CFIFOSEL	0x0020
 #define CFIFOCTR	0x0022
@@ -275,19 +276,15 @@ u16 usbhs_read(struct usbhs_priv *priv, u32 reg);
 void usbhs_write(struct usbhs_priv *priv, u32 reg, u16 data);
 void usbhs_bset(struct usbhs_priv *priv, u32 reg, u16 mask, u16 data);
 
-int usbhsc_drvcllbck_notify_hotplug(struct platform_device *pdev);
-
 #define usbhs_lock(p, f) spin_lock_irqsave(usbhs_priv_to_lock(p), f)
 #define usbhs_unlock(p, f) spin_unlock_irqrestore(usbhs_priv_to_lock(p), f)
 
 /*
  * sysconfig
  */
-void usbhs_sys_clock_ctrl(struct usbhs_priv *priv, int enable);
-void usbhs_sys_hispeed_ctrl(struct usbhs_priv *priv, int enable);
-void usbhs_sys_usb_ctrl(struct usbhs_priv *priv, int enable);
 void usbhs_sys_host_ctrl(struct usbhs_priv *priv, int enable);
 void usbhs_sys_function_ctrl(struct usbhs_priv *priv, int enable);
+void usbhs_sys_set_test_mode(struct usbhs_priv *priv, u16 mode);
 
 /*
  * usb request
@@ -311,7 +308,7 @@ int usbhs_frame_get_num(struct usbhs_priv *priv);
 /*
  * device config
  */
-int usbhs_set_device_speed(struct usbhs_priv *priv, int devnum, u16 upphub,
+int usbhs_set_device_config(struct usbhs_priv *priv, int devnum, u16 upphub,
 			   u16 hubport, u16 speed);
 
 /*
diff --git a/drivers/usb/renesas_usbhs/fifo.c b/drivers/usb/renesas_usbhs/fifo.c
index ffdf5d15085e..b51fcd80d244 100644
--- a/drivers/usb/renesas_usbhs/fifo.c
+++ b/drivers/usb/renesas_usbhs/fifo.c
@@ -56,7 +56,7 @@ static struct usbhs_pkt_handle usbhsf_null_handler = {
 void usbhs_pkt_push(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt,
 		    void (*done)(struct usbhs_priv *priv,
 				 struct usbhs_pkt *pkt),
-		    void *buf, int len, int zero)
+		    void *buf, int len, int zero, int sequence)
 {
 	struct usbhs_priv *priv = usbhs_pipe_to_priv(pipe);
 	struct device *dev = usbhs_priv_to_dev(priv);
@@ -90,6 +90,7 @@ void usbhs_pkt_push(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt,
 	pkt->zero	= zero;
 	pkt->actual	= 0;
 	pkt->done	= done;
+	pkt->sequence	= sequence;
 
 	usbhs_unlock(priv, flags);
 	/********************  spin unlock ******************/
@@ -481,6 +482,9 @@ static int usbhsf_pio_try_push(struct usbhs_pkt *pkt, int *is_done)
 	int i, ret, len;
 	int is_short;
 
+	usbhs_pipe_data_sequence(pipe, pkt->sequence);
+	pkt->sequence = -1; /* -1 sequence will be ignored */
+
 	ret = usbhsf_fifo_select(pipe, fifo, 1);
 	if (ret < 0)
 		return 0;
@@ -584,6 +588,8 @@ static int usbhsf_prepare_pop(struct usbhs_pkt *pkt, int *is_done)
 	/*
 	 * pipe enable to prepare packet receive
 	 */
+	usbhs_pipe_data_sequence(pipe, pkt->sequence);
+	pkt->sequence = -1; /* -1 sequence will be ignored */
 
 	usbhs_pipe_enable(pipe);
 	usbhsf_rx_irq_ctrl(pipe, 1);
@@ -641,6 +647,7 @@ static int usbhsf_pio_try_pop(struct usbhs_pkt *pkt, int *is_done)
 	 * "Operation" - "FIFO Buffer Memory" - "FIFO Port Function"
 	 */
 	if (0 == rcv_len) {
+		pkt->zero = 1;
 		usbhsf_fifo_clear(pipe, fifo);
 		goto usbhs_fifo_read_end;
 	}
diff --git a/drivers/usb/renesas_usbhs/fifo.h b/drivers/usb/renesas_usbhs/fifo.h
index 32a7b246b28d..f68609c0f489 100644
--- a/drivers/usb/renesas_usbhs/fifo.h
+++ b/drivers/usb/renesas_usbhs/fifo.h
@@ -59,6 +59,7 @@ struct usbhs_pkt {
 	int trans;
 	int actual;
 	int zero;
+	int sequence;
 };
 
 struct usbhs_pkt_handle {
@@ -95,7 +96,7 @@ void usbhs_pkt_init(struct usbhs_pkt *pkt);
 void usbhs_pkt_push(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt,
 		    void (*done)(struct usbhs_priv *priv,
 				 struct usbhs_pkt *pkt),
-		    void *buf, int len, int zero);
+		    void *buf, int len, int zero, int sequence);
 struct usbhs_pkt *usbhs_pkt_pop(struct usbhs_pipe *pipe, struct usbhs_pkt *pkt);
 void usbhs_pkt_start(struct usbhs_pipe *pipe);
 
diff --git a/drivers/usb/renesas_usbhs/mod.c b/drivers/usb/renesas_usbhs/mod.c
index ad96a3896729..1b97fb12694b 100644
--- a/drivers/usb/renesas_usbhs/mod.c
+++ b/drivers/usb/renesas_usbhs/mod.c
@@ -50,7 +50,9 @@ static int usbhsm_autonomy_irq_vbus(struct usbhs_priv *priv,
 {
 	struct platform_device *pdev = usbhs_priv_to_pdev(priv);
 
-	return usbhsc_drvcllbck_notify_hotplug(pdev);
+	renesas_usbhs_call_notify_hotplug(pdev);
+
+	return 0;
 }
 
 void usbhs_mod_autonomy_mode(struct usbhs_priv *priv)
diff --git a/drivers/usb/renesas_usbhs/mod_gadget.c b/drivers/usb/renesas_usbhs/mod_gadget.c
index 7f4e80338570..528691d5f3e2 100644
--- a/drivers/usb/renesas_usbhs/mod_gadget.c
+++ b/drivers/usb/renesas_usbhs/mod_gadget.c
@@ -14,6 +14,7 @@
  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  *
  */
+#include <linux/delay.h>
 #include <linux/dma-mapping.h>
 #include <linux/io.h>
 #include <linux/module.h>
@@ -44,7 +45,6 @@ struct usbhsg_uep {
 struct usbhsg_gpriv {
 	struct usb_gadget	 gadget;
 	struct usbhs_mod	 mod;
-	struct list_head	 link;
 
 	struct usbhsg_uep	*uep;
 	int			 uep_size;
@@ -114,16 +114,6 @@ struct usbhsg_recip_handle {
 #define usbhsg_status_clr(gp, b) (gp->status &= ~b)
 #define usbhsg_status_has(gp, b) (gp->status &   b)
 
-/* controller */
-LIST_HEAD(the_controller_link);
-
-#define usbhsg_for_each_controller(gpriv)\
-	list_for_each_entry(gpriv, &the_controller_link, link)
-#define usbhsg_controller_register(gpriv)\
-	list_add_tail(&(gpriv)->link, &the_controller_link)
-#define usbhsg_controller_unregister(gpriv)\
-	list_del_init(&(gpriv)->link)
-
 /*
  *		queue push/pop
  */
@@ -164,7 +154,7 @@ static void usbhsg_queue_push(struct usbhsg_uep *uep,
 	req->actual = 0;
 	req->status = -EINPROGRESS;
 	usbhs_pkt_push(pipe, pkt, usbhsg_queue_done,
-		       req->buf, req->length, req->zero);
+		       req->buf, req->length, req->zero, -1);
 	usbhs_pkt_start(pipe);
 
 	dev_dbg(dev, "pipe %d : queue push (%d)\n",
@@ -195,7 +185,7 @@ static int usbhsg_dma_map(struct device *dev,
 	}
 
 	if (dma_mapping_error(dev, pkt->dma)) {
-		dev_err(dev, "dma mapping error %x\n", pkt->dma);
+		dev_err(dev, "dma mapping error %llx\n", (u64)pkt->dma);
 		return -EIO;
 	}
 
@@ -271,6 +261,8 @@ static int usbhsg_recip_handler_std_clear_endpoint(struct usbhs_priv *priv,
 
 	usbhsg_recip_handler_std_control_done(priv, uep, ctrl);
 
+	usbhs_pkt_start(pipe);
+
 	return 0;
 }
 
@@ -282,6 +274,145 @@ struct usbhsg_recip_handle req_clear_feature = {
 };
 
 /*
+ *		USB_TYPE_STANDARD / set feature functions
+ */
+static int usbhsg_recip_handler_std_set_device(struct usbhs_priv *priv,
+						 struct usbhsg_uep *uep,
+						 struct usb_ctrlrequest *ctrl)
+{
+	switch (le16_to_cpu(ctrl->wValue)) {
+	case USB_DEVICE_TEST_MODE:
+		usbhsg_recip_handler_std_control_done(priv, uep, ctrl);
+		udelay(100);
+		usbhs_sys_set_test_mode(priv, le16_to_cpu(ctrl->wIndex >> 8));
+		break;
+	default:
+		usbhsg_recip_handler_std_control_done(priv, uep, ctrl);
+		break;
+	}
+
+	return 0;
+}
+
+static int usbhsg_recip_handler_std_set_endpoint(struct usbhs_priv *priv,
+						 struct usbhsg_uep *uep,
+						 struct usb_ctrlrequest *ctrl)
+{
+	struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
+
+	usbhs_pipe_stall(pipe);
+
+	usbhsg_recip_handler_std_control_done(priv, uep, ctrl);
+
+	return 0;
+}
+
+struct usbhsg_recip_handle req_set_feature = {
+	.name		= "set feature",
+	.device		= usbhsg_recip_handler_std_set_device,
+	.interface	= usbhsg_recip_handler_std_control_done,
+	.endpoint	= usbhsg_recip_handler_std_set_endpoint,
+};
+
+/*
+ *		USB_TYPE_STANDARD / get status functions
+ */
+static void __usbhsg_recip_send_complete(struct usb_ep *ep,
+					 struct usb_request *req)
+{
+	struct usbhsg_request *ureq = usbhsg_req_to_ureq(req);
+
+	/* free allocated recip-buffer/usb_request */
+	kfree(ureq->pkt.buf);
+	usb_ep_free_request(ep, req);
+}
+
+static void __usbhsg_recip_send_status(struct usbhsg_gpriv *gpriv,
+				       unsigned short status)
+{
+	struct usbhsg_uep *dcp = usbhsg_gpriv_to_dcp(gpriv);
+	struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(dcp);
+	struct device *dev = usbhsg_gpriv_to_dev(gpriv);
+	struct usb_request *req;
+	unsigned short *buf;
+
+	/* alloc new usb_request for recip */
+	req = usb_ep_alloc_request(&dcp->ep, GFP_ATOMIC);
+	if (!req) {
+		dev_err(dev, "recip request allocation fail\n");
+		return;
+	}
+
+	/* alloc recip data buffer */
+	buf = kmalloc(sizeof(*buf), GFP_ATOMIC);
+	if (!buf) {
+		usb_ep_free_request(&dcp->ep, req);
+		dev_err(dev, "recip data allocation fail\n");
+		return;
+	}
+
+	/* recip data is status */
+	*buf = cpu_to_le16(status);
+
+	/* allocated usb_request/buffer will be freed */
+	req->complete	= __usbhsg_recip_send_complete;
+	req->buf	= buf;
+	req->length	= sizeof(*buf);
+	req->zero	= 0;
+
+	/* push packet */
+	pipe->handler = &usbhs_fifo_pio_push_handler;
+	usbhsg_queue_push(dcp, usbhsg_req_to_ureq(req));
+}
+
+static int usbhsg_recip_handler_std_get_device(struct usbhs_priv *priv,
+					       struct usbhsg_uep *uep,
+					       struct usb_ctrlrequest *ctrl)
+{
+	struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
+	unsigned short status = 1 << USB_DEVICE_SELF_POWERED;
+
+	__usbhsg_recip_send_status(gpriv, status);
+
+	return 0;
+}
+
+static int usbhsg_recip_handler_std_get_interface(struct usbhs_priv *priv,
+						  struct usbhsg_uep *uep,
+						  struct usb_ctrlrequest *ctrl)
+{
+	struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
+	unsigned short status = 0;
+
+	__usbhsg_recip_send_status(gpriv, status);
+
+	return 0;
+}
+
+static int usbhsg_recip_handler_std_get_endpoint(struct usbhs_priv *priv,
+						 struct usbhsg_uep *uep,
+						 struct usb_ctrlrequest *ctrl)
+{
+	struct usbhsg_gpriv *gpriv = usbhsg_uep_to_gpriv(uep);
+	struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
+	unsigned short status = 0;
+
+	if (usbhs_pipe_is_stall(pipe))
+		status = 1 << USB_ENDPOINT_HALT;
+
+	__usbhsg_recip_send_status(gpriv, status);
+
+	return 0;
+}
+
+struct usbhsg_recip_handle req_get_status = {
+	.name		= "get status",
+	.device		= usbhsg_recip_handler_std_get_device,
+	.interface	= usbhsg_recip_handler_std_get_interface,
+	.endpoint	= usbhsg_recip_handler_std_get_endpoint,
+};
+
+/*
  *		USB_TYPE handler
  */
 static int usbhsg_recip_run_handle(struct usbhs_priv *priv,
@@ -303,8 +434,7 @@ static int usbhsg_recip_run_handle(struct usbhs_priv *priv,
 	pipe = usbhsg_uep_to_pipe(uep);
 	if (!pipe) {
 		dev_err(dev, "wrong recip request\n");
-		ret = -EINVAL;
-		goto usbhsg_recip_run_handle_end;
+		return -EINVAL;
 	}
 
 	switch (recip) {
@@ -327,20 +457,10 @@ static int usbhsg_recip_run_handle(struct usbhs_priv *priv,
 	}
 
 	if (func) {
-		unsigned long flags;
-
 		dev_dbg(dev, "%s (pipe %d :%s)\n", handler->name, nth, msg);
-
-		/********************  spin lock ********************/
-		usbhs_lock(priv, flags);
 		ret = func(priv, uep, ctrl);
-		usbhs_unlock(priv, flags);
-		/********************  spin unlock ******************/
 	}
 
-usbhsg_recip_run_handle_end:
-	usbhs_pkt_start(pipe);
-
 	return ret;
 }
 
@@ -412,6 +532,12 @@ static int usbhsg_irq_ctrl_stage(struct usbhs_priv *priv,
 		case USB_REQ_CLEAR_FEATURE:
 			recip_handler = &req_clear_feature;
 			break;
+		case USB_REQ_SET_FEATURE:
+			recip_handler = &req_set_feature;
+			break;
+		case USB_REQ_GET_STATUS:
+			recip_handler = &req_get_status;
+			break;
 		}
 	}
 
@@ -439,14 +565,16 @@ static int usbhsg_pipe_disable(struct usbhsg_uep *uep)
 	struct usbhs_pipe *pipe = usbhsg_uep_to_pipe(uep);
 	struct usbhs_pkt *pkt;
 
-	usbhs_pipe_disable(pipe);
-
 	while (1) {
 		pkt = usbhs_pkt_pop(pipe, NULL);
 		if (!pkt)
 			break;
+
+		usbhsg_queue_pop(uep, usbhsg_pkt_to_ureq(pkt), -ECONNRESET);
 	}
 
+	usbhs_pipe_disable(pipe);
+
 	return 0;
 }
 
@@ -681,9 +809,7 @@ static int usbhsg_try_start(struct usbhs_priv *priv, u32 status)
 	 * - function
 	 * - usb module
 	 */
-	usbhs_sys_hispeed_ctrl(priv, 1);
 	usbhs_sys_function_ctrl(priv, 1);
-	usbhs_sys_usb_ctrl(priv, 1);
 
 	/*
 	 * enable irq callback
@@ -731,9 +857,8 @@ static int usbhsg_try_stop(struct usbhs_priv *priv, u32 status)
 	gpriv->gadget.speed = USB_SPEED_UNKNOWN;
 
 	/* disable sys */
-	usbhs_sys_hispeed_ctrl(priv, 0);
+	usbhs_sys_set_test_mode(priv, 0);
 	usbhs_sys_function_ctrl(priv, 0);
-	usbhs_sys_usb_ctrl(priv, 0);
 
 	usbhsg_pipe_disable(dcp);
 
@@ -755,7 +880,7 @@ static int usbhsg_gadget_start(struct usb_gadget *gadget,
 
 	if (!driver		||
 	    !driver->setup	||
-	    driver->speed < USB_SPEED_FULL)
+	    driver->max_speed < USB_SPEED_FULL)
 		return -EINVAL;
 
 	/* first hook up the driver ... */
@@ -866,7 +991,7 @@ int usbhs_mod_gadget_probe(struct usbhs_priv *priv)
 	gpriv->gadget.dev.parent	= dev;
 	gpriv->gadget.name		= "renesas_usbhs_udc";
 	gpriv->gadget.ops		= &usbhsg_gadget_ops;
-	gpriv->gadget.is_dualspeed	= 1;
+	gpriv->gadget.max_speed		= USB_SPEED_HIGH;
 	ret = device_register(&gpriv->gadget.dev);
 	if (ret < 0)
 		goto err_add_udc;
@@ -896,8 +1021,6 @@ int usbhs_mod_gadget_probe(struct usbhs_priv *priv)
 		}
 	}
 
-	usbhsg_controller_register(gpriv);
-
 	ret = usb_add_gadget_udc(dev, &gpriv->gadget);
 	if (ret)
 		goto err_register;
@@ -926,8 +1049,6 @@ void usbhs_mod_gadget_remove(struct usbhs_priv *priv)
 
 	device_unregister(&gpriv->gadget.dev);
 
-	usbhsg_controller_unregister(gpriv);
-
 	kfree(gpriv->uep);
 	kfree(gpriv);
 }
diff --git a/drivers/usb/renesas_usbhs/mod_host.c b/drivers/usb/renesas_usbhs/mod_host.c
index 7955de589951..1834cf50888c 100644
--- a/drivers/usb/renesas_usbhs/mod_host.c
+++ b/drivers/usb/renesas_usbhs/mod_host.c
@@ -45,36 +45,34 @@
  *
  * +--------+					pipes are reused for each uep.
  * | udev 1 |-+- [uep 0 (dcp) ] --+		pipe will be switched when
- * +--------+ |			  |		target device was changed
+ * +--------+ |			  |		other device requested
  *	      +- [uep 1 (bulk)]	--|---+		   +--------------+
  *	      |			  +--------------> | pipe0 (dcp)  |
- *	      +- [uep 2 (bulk)]	--|---|---+	   +--------------+
- *				  |   |	  |	   | pipe1 (isoc) |
- * +--------+			  |   |	  |	   +--------------+
- * | udev 2 |-+- [uep 0 (dcp) ]	--+   +-- |------> | pipe2 (bulk) |
- * +--------+ |			  |   |	  |	   +--------------+
- *	      +- [uep 1 (int) ]	--|-+ |	  +------> | pipe3 (bulk) |
- *				  | | |	  |	   +--------------+
- * +--------+			  | +-|---|------> | pipe4 (int)  |
- * | udev 3 |-+- [uep 0 (dcp) ]	--+   |	  |	   +--------------+
- * +--------+ |			      |	  |	   | ....	  |
- *	      +- [uep 1 (bulk)]	------+	  |	   | ....	  |
+ *	      +- [uep 2 (bulk)]	-@    |		   +--------------+
+ *				      |		   | pipe1 (isoc) |
+ * +--------+			      |		   +--------------+
+ * | udev 2 |-+- [uep 0 (dcp) ]	-@    +----------> | pipe2 (bulk) |
+ * +--------+ |					   +--------------+
+ *	      +- [uep 1 (int) ]	----+	  +------> | pipe3 (bulk) |
+ *				    |	  |	   +--------------+
+ * +--------+			    +-----|------> | pipe4 (int)  |
+ * | udev 3 |-+- [uep 0 (dcp) ]	-@	  |	   +--------------+
+ * +--------+ |				  |	   | ....	  |
+ *	      +- [uep 1 (bulk)]	-@	  |	   | ....	  |
  *	      |				  |
  *	      +- [uep 2 (bulk)]-----------+
+ *
+ * @ :	uep requested free pipe, but all have been used.
+ *	now it is waiting for free pipe
  */
 
 
 /*
  *		struct
  */
-struct usbhsh_pipe_info {
-	unsigned int		usr_cnt; /* see usbhsh_endpoint_alloc() */
-};
-
 struct usbhsh_request {
 	struct urb		*urb;
 	struct usbhs_pkt	pkt;
-	struct list_head	ureq_link; /* see hpriv :: ureq_link_xxx */
 };
 
 struct usbhsh_device {
@@ -83,11 +81,10 @@ struct usbhsh_device {
 };
 
 struct usbhsh_ep {
-	struct usbhs_pipe	*pipe;
+	struct usbhs_pipe	*pipe;   /* attached pipe */
 	struct usbhsh_device	*udev;   /* attached udev */
+	struct usb_host_endpoint *ep;
 	struct list_head	ep_list; /* list to usbhsh_device */
-
-	int maxp;
 };
 
 #define USBHSH_DEVICE_MAX	10 /* see DEVADDn / DCPMAXP / PIPEMAXP */
@@ -98,16 +95,9 @@ struct usbhsh_hpriv {
 
 	struct usbhsh_device	udev[USBHSH_DEVICE_MAX];
 
-	struct usbhsh_pipe_info	*pipe_info;
-	int			 pipe_size;
-
 	u32	port_stat;	/* USB_PORT_STAT_xxx */
 
 	struct completion	setup_ack_done;
-
-	/* see usbhsh_req_alloc/free */
-	struct list_head	ureq_link_active;
-	struct list_head	ureq_link_free;
 };
 
 
@@ -119,17 +109,6 @@ static const char usbhsh_hcd_name[] = "renesas_usbhs host";
 #define usbhsh_priv_to_hpriv(priv) \
 	container_of(usbhs_mod_get(priv, USBHS_HOST), struct usbhsh_hpriv, mod)
 
-#define __usbhsh_for_each_hpipe(start, pos, h, i)	\
-	for (i = start, pos = (h)->hpipe + i;		\
-	     i < (h)->hpipe_size;			\
-	     i++, pos = (h)->hpipe + i)
-
-#define usbhsh_for_each_hpipe(pos, hpriv, i)	\
-	__usbhsh_for_each_hpipe(1, pos, hpriv, i)
-
-#define usbhsh_for_each_hpipe_with_dcp(pos, hpriv, i)	\
-	__usbhsh_for_each_hpipe(0, pos, hpriv, i)
-
 #define __usbhsh_for_each_udev(start, pos, h, i)	\
 	for (i = start, pos = (h)->udev + i;		\
 	     i < USBHSH_DEVICE_MAX;			\
@@ -152,15 +131,20 @@ static const char usbhsh_hcd_name[] = "renesas_usbhs host";
 #define usbhsh_ep_to_uep(u)	((u)->hcpriv)
 #define usbhsh_uep_to_pipe(u)	((u)->pipe)
 #define usbhsh_uep_to_udev(u)	((u)->udev)
+#define usbhsh_uep_to_ep(u)	((u)->ep)
+
 #define usbhsh_urb_to_ureq(u)	((u)->hcpriv)
 #define usbhsh_urb_to_usbv(u)	((u)->dev)
 
 #define usbhsh_usbv_to_udev(d)	dev_get_drvdata(&(d)->dev)
 
 #define usbhsh_udev_to_usbv(h)	((h)->usbv)
+#define usbhsh_udev_is_used(h)	usbhsh_udev_to_usbv(h)
 
-#define usbhsh_pipe_info(p)	((p)->mod_private)
+#define usbhsh_pipe_to_uep(p)	((p)->mod_private)
 
+#define usbhsh_device_parent(d)		(usbhsh_usbv_to_udev((d)->usbv->parent))
+#define usbhsh_device_hubport(d)	((d)->usbv->portnum)
 #define usbhsh_device_number(h, d)	((int)((d) - (h)->udev))
 #define usbhsh_device_nth(h, d)		((h)->udev + d)
 #define usbhsh_device0(h)		usbhsh_device_nth(h, 0)
@@ -170,38 +154,13 @@ static const char usbhsh_hcd_name[] = "renesas_usbhs host";
 #define usbhsh_port_stat_clear(h, s)	((h)->port_stat &= ~(s))
 #define usbhsh_port_stat_get(h)		((h)->port_stat)
 
-#define usbhsh_pkt_to_req(p)	\
+#define usbhsh_pkt_to_ureq(p)	\
 	container_of((void *)p, struct usbhsh_request, pkt)
 
 /*
  *		req alloc/free
  */
-static void usbhsh_req_list_init(struct usbhsh_hpriv *hpriv)
-{
-	INIT_LIST_HEAD(&hpriv->ureq_link_active);
-	INIT_LIST_HEAD(&hpriv->ureq_link_free);
-}
-
-static void usbhsh_req_list_quit(struct usbhsh_hpriv *hpriv)
-{
-	struct usb_hcd *hcd = usbhsh_hpriv_to_hcd(hpriv);
-	struct device *dev = usbhsh_hcd_to_dev(hcd);
-	struct usbhsh_request *ureq, *next;
-
-	/* kfree all active ureq */
-	list_for_each_entry_safe(ureq, next,
-				 &hpriv->ureq_link_active,
-				 ureq_link) {
-		dev_err(dev, "active ureq (%p) is force freed\n", ureq);
-		kfree(ureq);
-	}
-
-	/* kfree all free ureq */
-	list_for_each_entry_safe(ureq, next, &hpriv->ureq_link_free, ureq_link)
-		kfree(ureq);
-}
-
-static struct usbhsh_request *usbhsh_req_alloc(struct usbhsh_hpriv *hpriv,
+static struct usbhsh_request *usbhsh_ureq_alloc(struct usbhsh_hpriv *hpriv,
 					       struct urb *urb,
 					       gfp_t mem_flags)
 {
@@ -209,270 +168,460 @@ static struct usbhsh_request *usbhsh_req_alloc(struct usbhsh_hpriv *hpriv,
 	struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv);
 	struct device *dev = usbhs_priv_to_dev(priv);
 
-	if (list_empty(&hpriv->ureq_link_free)) {
-		/*
-		 * create new one if there is no free ureq
-		 */
-		ureq = kzalloc(sizeof(struct usbhsh_request), mem_flags);
-		if (ureq)
-			INIT_LIST_HEAD(&ureq->ureq_link);
-	} else {
-		/*
-		 * reuse "free" ureq if exist
-		 */
-		ureq = list_entry(hpriv->ureq_link_free.next,
-				  struct usbhsh_request,
-				  ureq_link);
-		if (ureq)
-			list_del_init(&ureq->ureq_link);
-	}
-
+	ureq = kzalloc(sizeof(struct usbhsh_request), mem_flags);
 	if (!ureq) {
 		dev_err(dev, "ureq alloc fail\n");
 		return NULL;
 	}
 
 	usbhs_pkt_init(&ureq->pkt);
-
-	/*
-	 * push it to "active" list
-	 */
-	list_add_tail(&ureq->ureq_link, &hpriv->ureq_link_active);
 	ureq->urb = urb;
+	usbhsh_urb_to_ureq(urb) = ureq;
 
 	return ureq;
 }
 
-static void usbhsh_req_free(struct usbhsh_hpriv *hpriv,
+static void usbhsh_ureq_free(struct usbhsh_hpriv *hpriv,
 			    struct usbhsh_request *ureq)
 {
-	struct usbhs_pkt *pkt = &ureq->pkt;
+	usbhsh_urb_to_ureq(ureq->urb) = NULL;
+	ureq->urb = NULL;
 
-	usbhs_pkt_init(pkt);
+	kfree(ureq);
+}
 
+/*
+ *		status
+ */
+static int usbhsh_is_running(struct usbhsh_hpriv *hpriv)
+{
 	/*
-	 * removed from "active" list,
-	 * and push it to "free" list
+	 * we can decide some device is attached or not
+	 * by checking mod.irq_attch
+	 * see
+	 *	usbhsh_irq_attch()
+	 *	usbhsh_irq_dtch()
 	 */
-	ureq->urb = NULL;
-	list_del_init(&ureq->ureq_link);
-	list_add_tail(&ureq->ureq_link, &hpriv->ureq_link_free);
+	return (hpriv->mod.irq_attch == NULL);
 }
 
 /*
- *		device control
+ *		pipe control
  */
-
-static int usbhsh_device_has_endpoint(struct usbhsh_device *udev)
+static void usbhsh_endpoint_sequence_save(struct usbhsh_hpriv *hpriv,
+					  struct urb *urb,
+					  struct usbhs_pkt *pkt)
 {
-	return !list_empty(&udev->ep_list_head);
-}
+	int len = urb->actual_length;
+	int maxp = usb_endpoint_maxp(&urb->ep->desc);
+	int t = 0;
 
-static struct usbhsh_device *usbhsh_device_alloc(struct usbhsh_hpriv *hpriv,
-						 struct urb *urb)
-{
-	struct usbhsh_device *udev = NULL;
-	struct usb_hcd *hcd = usbhsh_hpriv_to_hcd(hpriv);
-	struct device *dev = usbhsh_hcd_to_dev(hcd);
-	struct usb_device *usbv = usbhsh_urb_to_usbv(urb);
-	struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv);
-	int i;
+	/* DCP is out of sequence control */
+	if (usb_pipecontrol(urb->pipe))
+		return;
 
 	/*
-	 * device 0
+	 * renesas_usbhs pipe has a limitation in a number.
+	 * So, driver should re-use the limited pipe for each device/endpoint.
+	 * DATA0/1 sequence should be saved for it.
+	 * see [image of mod_host]
+	 *     [HARDWARE LIMITATION]
 	 */
-	if (0 == usb_pipedevice(urb->pipe)) {
-		udev = usbhsh_device0(hpriv);
-		goto usbhsh_device_find;
-	}
 
 	/*
-	 * find unused device
+	 * next sequence depends on actual_length
+	 *
+	 * ex) actual_length = 1147, maxp = 512
+	 * data0 : 512
+	 * data1 : 512
+	 * data0 : 123
+	 * data1 is the next sequence
 	 */
-	usbhsh_for_each_udev(udev, hpriv, i) {
-		if (usbhsh_udev_to_usbv(udev))
-			continue;
-		goto usbhsh_device_find;
+	t = len / maxp;
+	if (len % maxp)
+		t++;
+	if (pkt->zero)
+		t++;
+	t %= 2;
+
+	if (t)
+		usb_dotoggle(urb->dev,
+			     usb_pipeendpoint(urb->pipe),
+			     usb_pipeout(urb->pipe));
+}
+
+static struct usbhsh_device *usbhsh_device_get(struct usbhsh_hpriv *hpriv,
+					       struct urb *urb);
+
+static int usbhsh_pipe_attach(struct usbhsh_hpriv *hpriv,
+			      struct urb *urb)
+{
+	struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv);
+	struct usbhsh_ep *uep = usbhsh_ep_to_uep(urb->ep);
+	struct usbhsh_device *udev = usbhsh_device_get(hpriv, urb);
+	struct usbhs_pipe *pipe;
+	struct usb_endpoint_descriptor *desc = &urb->ep->desc;
+	struct device *dev = usbhs_priv_to_dev(priv);
+	unsigned long flags;
+	int dir_in_req = !!usb_pipein(urb->pipe);
+	int is_dcp = usb_endpoint_xfer_control(desc);
+	int i, dir_in;
+	int ret = -EBUSY;
+
+	/********************  spin lock ********************/
+	usbhs_lock(priv, flags);
+
+	if (unlikely(usbhsh_uep_to_pipe(uep))) {
+		dev_err(dev, "uep already has pipe\n");
+		goto usbhsh_pipe_attach_done;
 	}
 
-	dev_err(dev, "no free usbhsh_device\n");
+	usbhs_for_each_pipe_with_dcp(pipe, priv, i) {
 
-	return NULL;
+		/* check pipe type */
+		if (!usbhs_pipe_type_is(pipe, usb_endpoint_type(desc)))
+			continue;
 
-usbhsh_device_find:
-	if (usbhsh_device_has_endpoint(udev))
-		dev_warn(dev, "udev have old endpoint\n");
+		/* check pipe direction if normal pipe */
+		if (!is_dcp) {
+			dir_in = !!usbhs_pipe_is_dir_in(pipe);
+			if (0 != (dir_in - dir_in_req))
+				continue;
+		}
 
-	/* uep will be attached */
-	INIT_LIST_HEAD(&udev->ep_list_head);
+		/* check pipe is free */
+		if (usbhsh_pipe_to_uep(pipe))
+			continue;
 
-	/*
-	 * usbhsh_usbv_to_udev()
-	 * usbhsh_udev_to_usbv()
-	 * will be enable
-	 */
-	dev_set_drvdata(&usbv->dev, udev);
-	udev->usbv = usbv;
+		/*
+		 * attach pipe to uep
+		 *
+		 * usbhs_pipe_config_update() should be called after
+		 * usbhs_set_device_config()
+		 * see
+		 *  DCPMAXP/PIPEMAXP
+		 */
+		usbhsh_uep_to_pipe(uep)		= pipe;
+		usbhsh_pipe_to_uep(pipe)	= uep;
 
-	/* set device config */
-	usbhs_set_device_speed(priv,
-			       usbhsh_device_number(hpriv, udev),
-			       usbhsh_device_number(hpriv, udev),
-			       0, /* FIXME no parent */
-			       usbv->speed);
+		usbhs_pipe_config_update(pipe,
+					 usbhsh_device_number(hpriv, udev),
+					 usb_endpoint_num(desc),
+					 usb_endpoint_maxp(desc));
 
-	dev_dbg(dev, "%s [%d](%p)\n", __func__,
-		usbhsh_device_number(hpriv, udev), udev);
+		dev_dbg(dev, "%s [%d-%d(%s:%s)]\n", __func__,
+			usbhsh_device_number(hpriv, udev),
+			usb_endpoint_num(desc),
+			usbhs_pipe_name(pipe),
+			dir_in_req ? "in" : "out");
 
-	return udev;
+		ret = 0;
+		break;
+	}
+
+usbhsh_pipe_attach_done:
+	usbhs_unlock(priv, flags);
+	/********************  spin unlock ******************/
+
+	return ret;
 }
 
-static void usbhsh_device_free(struct usbhsh_hpriv *hpriv,
-			       struct usbhsh_device *udev)
+static void usbhsh_pipe_detach(struct usbhsh_hpriv *hpriv,
+			       struct usbhsh_ep *uep)
 {
-	struct usb_hcd *hcd = usbhsh_hpriv_to_hcd(hpriv);
-	struct device *dev = usbhsh_hcd_to_dev(hcd);
-	struct usb_device *usbv = usbhsh_udev_to_usbv(udev);
+	struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv);
+	struct usbhs_pipe *pipe;
+	struct device *dev = usbhs_priv_to_dev(priv);
+	unsigned long flags;
 
-	dev_dbg(dev, "%s [%d](%p)\n", __func__,
-		usbhsh_device_number(hpriv, udev), udev);
+	/********************  spin lock ********************/
+	usbhs_lock(priv, flags);
 
-	if (usbhsh_device_has_endpoint(udev))
-		dev_warn(dev, "udev still have endpoint\n");
+	pipe = usbhsh_uep_to_pipe(uep);
 
-	/*
-	 * usbhsh_usbv_to_udev()
-	 * usbhsh_udev_to_usbv()
-	 * will be disable
-	 */
-	dev_set_drvdata(&usbv->dev, NULL);
-	udev->usbv = NULL;
+	if (unlikely(!pipe)) {
+		dev_err(dev, "uep doens't have pipe\n");
+	} else {
+		struct usb_host_endpoint *ep = usbhsh_uep_to_ep(uep);
+		struct usbhsh_device *udev = usbhsh_uep_to_udev(uep);
+
+		/* detach pipe from uep */
+		usbhsh_uep_to_pipe(uep)		= NULL;
+		usbhsh_pipe_to_uep(pipe)	= NULL;
+
+		dev_dbg(dev, "%s [%d-%d(%s)]\n", __func__,
+			usbhsh_device_number(hpriv, udev),
+			usb_endpoint_num(&ep->desc),
+			usbhs_pipe_name(pipe));
+	}
+
+	usbhs_unlock(priv, flags);
+	/********************  spin unlock ******************/
 }
 
 /*
- *		end-point control
+ *		endpoint control
  */
-struct usbhsh_ep *usbhsh_endpoint_alloc(struct usbhsh_hpriv *hpriv,
-					struct usbhsh_device *udev,
-					struct usb_host_endpoint *ep,
-					int dir_in_req,
-					gfp_t mem_flags)
+static int usbhsh_endpoint_attach(struct usbhsh_hpriv *hpriv,
+				  struct urb *urb,
+				  gfp_t mem_flags)
 {
 	struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv);
-	struct usb_hcd *hcd = usbhsh_hpriv_to_hcd(hpriv);
+	struct usbhsh_device *udev = usbhsh_device_get(hpriv, urb);
+	struct usb_host_endpoint *ep = urb->ep;
 	struct usbhsh_ep *uep;
-	struct usbhsh_pipe_info *info;
-	struct usbhs_pipe *pipe, *best_pipe;
-	struct device *dev = usbhsh_hcd_to_dev(hcd);
+	struct device *dev = usbhs_priv_to_dev(priv);
 	struct usb_endpoint_descriptor *desc = &ep->desc;
-	int type, i, dir_in;
-	unsigned int min_usr;
-
-	dir_in_req = !!dir_in_req;
+	unsigned long flags;
 
 	uep = kzalloc(sizeof(struct usbhsh_ep), mem_flags);
 	if (!uep) {
 		dev_err(dev, "usbhsh_ep alloc fail\n");
-		return NULL;
+		return -ENOMEM;
 	}
 
-	if (usb_endpoint_xfer_control(desc)) {
-		best_pipe = usbhsh_hpriv_to_dcp(hpriv);
-		goto usbhsh_endpoint_alloc_find_pipe;
+	/********************  spin lock ********************/
+	usbhs_lock(priv, flags);
+
+	/*
+	 * init endpoint
+	 */
+	INIT_LIST_HEAD(&uep->ep_list);
+	list_add_tail(&uep->ep_list, &udev->ep_list_head);
+
+	usbhsh_uep_to_udev(uep)	= udev;
+	usbhsh_uep_to_ep(uep)	= ep;
+	usbhsh_ep_to_uep(ep)	= uep;
+
+	usbhs_unlock(priv, flags);
+	/********************  spin unlock ******************/
+
+	dev_dbg(dev, "%s [%d-%d]\n", __func__,
+		usbhsh_device_number(hpriv, udev),
+		usb_endpoint_num(desc));
+
+	return 0;
+}
+
+static void usbhsh_endpoint_detach(struct usbhsh_hpriv *hpriv,
+				   struct usb_host_endpoint *ep)
+{
+	struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv);
+	struct device *dev = usbhs_priv_to_dev(priv);
+	struct usbhsh_ep *uep = usbhsh_ep_to_uep(ep);
+	unsigned long flags;
+
+	if (!uep)
+		return;
+
+	dev_dbg(dev, "%s [%d-%d]\n", __func__,
+		usbhsh_device_number(hpriv, usbhsh_uep_to_udev(uep)),
+		usb_endpoint_num(&ep->desc));
+
+	if (usbhsh_uep_to_pipe(uep))
+		usbhsh_pipe_detach(hpriv, uep);
+
+	/********************  spin lock ********************/
+	usbhs_lock(priv, flags);
+
+	/* remove this endpoint from udev */
+	list_del_init(&uep->ep_list);
+
+	usbhsh_uep_to_udev(uep)	= NULL;
+	usbhsh_uep_to_ep(uep)	= NULL;
+	usbhsh_ep_to_uep(ep)	= NULL;
+
+	usbhs_unlock(priv, flags);
+	/********************  spin unlock ******************/
+
+	kfree(uep);
+}
+
+static void usbhsh_endpoint_detach_all(struct usbhsh_hpriv *hpriv,
+				       struct usbhsh_device *udev)
+{
+	struct usbhsh_ep *uep, *next;
+
+	list_for_each_entry_safe(uep, next, &udev->ep_list_head, ep_list)
+		usbhsh_endpoint_detach(hpriv, usbhsh_uep_to_ep(uep));
+}
+
+/*
+ *		device control
+ */
+static int usbhsh_connected_to_rhdev(struct usb_hcd *hcd,
+				     struct usbhsh_device *udev)
+{
+	struct usb_device *usbv = usbhsh_udev_to_usbv(udev);
+
+	return hcd->self.root_hub == usbv->parent;
+}
+
+static int usbhsh_device_has_endpoint(struct usbhsh_device *udev)
+{
+	return !list_empty(&udev->ep_list_head);
+}
+
+static struct usbhsh_device *usbhsh_device_get(struct usbhsh_hpriv *hpriv,
+					       struct urb *urb)
+{
+	struct usb_device *usbv = usbhsh_urb_to_usbv(urb);
+	struct usbhsh_device *udev = usbhsh_usbv_to_udev(usbv);
+
+	/* usbhsh_device_attach() is still not called */
+	if (!udev)
+		return NULL;
+
+	/* if it is device0, return it */
+	if (0 == usb_pipedevice(urb->pipe))
+		return usbhsh_device0(hpriv);
+
+	/* return attached device */
+	return udev;
+}
+
+static struct usbhsh_device *usbhsh_device_attach(struct usbhsh_hpriv *hpriv,
+						 struct urb *urb)
+{
+	struct usbhsh_device *udev = NULL;
+	struct usbhsh_device *udev0 = usbhsh_device0(hpriv);
+	struct usbhsh_device *pos;
+	struct usb_hcd *hcd = usbhsh_hpriv_to_hcd(hpriv);
+	struct device *dev = usbhsh_hcd_to_dev(hcd);
+	struct usb_device *usbv = usbhsh_urb_to_usbv(urb);
+	struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv);
+	unsigned long flags;
+	u16 upphub, hubport;
+	int i;
+
+	/*
+	 * This function should be called only while urb is pointing to device0.
+	 * It will attach unused usbhsh_device to urb (usbv),
+	 * and initialize device0.
+	 * You can use usbhsh_device_get() to get "current" udev,
+	 * and usbhsh_usbv_to_udev() is for "attached" udev.
+	 */
+	if (0 != usb_pipedevice(urb->pipe)) {
+		dev_err(dev, "%s fail: urb isn't pointing device0\n", __func__);
+		return NULL;
 	}
 
+	/********************  spin lock ********************/
+	usbhs_lock(priv, flags);
+
 	/*
-	 * find best pipe for endpoint
-	 * see
-	 *	HARDWARE LIMITATION
+	 * find unused device
 	 */
-	type = usb_endpoint_type(desc);
-	min_usr = ~0;
-	best_pipe = NULL;
-	usbhs_for_each_pipe(pipe, priv, i) {
-		if (!usbhs_pipe_type_is(pipe, type))
+	usbhsh_for_each_udev(pos, hpriv, i) {
+		if (usbhsh_udev_is_used(pos))
 			continue;
+		udev = pos;
+		break;
+	}
 
-		dir_in = !!usbhs_pipe_is_dir_in(pipe);
-		if (0 != (dir_in - dir_in_req))
-			continue;
+	if (udev) {
+		/*
+		 * usbhsh_usbv_to_udev()
+		 * usbhsh_udev_to_usbv()
+		 * will be enable
+		 */
+		dev_set_drvdata(&usbv->dev, udev);
+		udev->usbv = usbv;
+	}
 
-		info = usbhsh_pipe_info(pipe);
+	usbhs_unlock(priv, flags);
+	/********************  spin unlock ******************/
 
-		if (min_usr > info->usr_cnt) {
-			min_usr		= info->usr_cnt;
-			best_pipe	= pipe;
-		}
+	if (!udev) {
+		dev_err(dev, "no free usbhsh_device\n");
+		return NULL;
 	}
 
-	if (unlikely(!best_pipe)) {
-		dev_err(dev, "couldn't find best pipe\n");
-		kfree(uep);
-		return NULL;
+	if (usbhsh_device_has_endpoint(udev)) {
+		dev_warn(dev, "udev have old endpoint\n");
+		usbhsh_endpoint_detach_all(hpriv, udev);
+	}
+
+	if (usbhsh_device_has_endpoint(udev0)) {
+		dev_warn(dev, "udev0 have old endpoint\n");
+		usbhsh_endpoint_detach_all(hpriv, udev0);
 	}
-usbhsh_endpoint_alloc_find_pipe:
+
+	/* uep will be attached */
+	INIT_LIST_HEAD(&udev0->ep_list_head);
+	INIT_LIST_HEAD(&udev->ep_list_head);
+
 	/*
-	 * init uep
+	 * set device0 config
 	 */
-	uep->pipe	= best_pipe;
-	uep->maxp	= usb_endpoint_maxp(desc);
-	usbhsh_uep_to_udev(uep)	= udev;
-	usbhsh_ep_to_uep(ep)	= uep;
+	usbhs_set_device_config(priv,
+				0, 0, 0, usbv->speed);
 
 	/*
-	 * update pipe user count
+	 * set new device config
 	 */
-	info = usbhsh_pipe_info(best_pipe);
-	info->usr_cnt++;
+	upphub	= 0;
+	hubport	= 0;
+	if (!usbhsh_connected_to_rhdev(hcd, udev)) {
+		/* if udev is not connected to rhdev, it means parent is Hub */
+		struct usbhsh_device *parent = usbhsh_device_parent(udev);
 
-	/* init this endpoint, and attach it to udev */
-	INIT_LIST_HEAD(&uep->ep_list);
-	list_add_tail(&uep->ep_list, &udev->ep_list_head);
+		upphub	= usbhsh_device_number(hpriv, parent);
+		hubport	= usbhsh_device_hubport(udev);
 
-	/*
-	 * usbhs_pipe_config_update() should be called after
-	 * usbhs_device_config()
-	 * see
-	 *  DCPMAXP/PIPEMAXP
-	 */
-	usbhs_pipe_sequence_data0(uep->pipe);
-	usbhs_pipe_config_update(uep->pipe,
-				 usbhsh_device_number(hpriv, udev),
-				 usb_endpoint_num(desc),
-				 uep->maxp);
+		dev_dbg(dev, "%s connecte to Hub [%d:%d](%p)\n", __func__,
+			upphub, hubport, parent);
+	}
 
-	dev_dbg(dev, "%s [%d-%s](%p)\n", __func__,
-		usbhsh_device_number(hpriv, udev),
-		usbhs_pipe_name(uep->pipe), uep);
+	usbhs_set_device_config(priv,
+			       usbhsh_device_number(hpriv, udev),
+			       upphub, hubport, usbv->speed);
 
-	return uep;
+	dev_dbg(dev, "%s [%d](%p)\n", __func__,
+		usbhsh_device_number(hpriv, udev), udev);
+
+	return udev;
 }
 
-void usbhsh_endpoint_free(struct usbhsh_hpriv *hpriv,
-			  struct usb_host_endpoint *ep)
+static void usbhsh_device_detach(struct usbhsh_hpriv *hpriv,
+			       struct usbhsh_device *udev)
 {
+	struct usb_hcd *hcd = usbhsh_hpriv_to_hcd(hpriv);
 	struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv);
-	struct device *dev = usbhs_priv_to_dev(priv);
-	struct usbhsh_ep *uep = usbhsh_ep_to_uep(ep);
-	struct usbhsh_pipe_info *info;
+	struct device *dev = usbhsh_hcd_to_dev(hcd);
+	struct usb_device *usbv = usbhsh_udev_to_usbv(udev);
+	unsigned long flags;
 
-	if (!uep)
-		return;
+	dev_dbg(dev, "%s [%d](%p)\n", __func__,
+		usbhsh_device_number(hpriv, udev), udev);
 
-	dev_dbg(dev, "%s [%d-%s](%p)\n", __func__,
-		usbhsh_device_number(hpriv, usbhsh_uep_to_udev(uep)),
-		usbhs_pipe_name(uep->pipe), uep);
+	if (usbhsh_device_has_endpoint(udev)) {
+		dev_warn(dev, "udev still have endpoint\n");
+		usbhsh_endpoint_detach_all(hpriv, udev);
+	}
 
-	info = usbhsh_pipe_info(uep->pipe);
-	info->usr_cnt--;
+	/*
+	 * There is nothing to do if it is device0.
+	 * see
+	 *  usbhsh_device_attach()
+	 *  usbhsh_device_get()
+	 */
+	if (0 == usbhsh_device_number(hpriv, udev))
+		return;
 
-	/* remove this endpoint from udev */
-	list_del_init(&uep->ep_list);
+	/********************  spin lock ********************/
+	usbhs_lock(priv, flags);
 
-	usbhsh_uep_to_udev(uep) = NULL;
-	usbhsh_ep_to_uep(ep) = NULL;
+	/*
+	 * usbhsh_usbv_to_udev()
+	 * usbhsh_udev_to_usbv()
+	 * will be disable
+	 */
+	dev_set_drvdata(&usbv->dev, NULL);
+	udev->usbv = NULL;
 
-	kfree(uep);
+	usbhs_unlock(priv, flags);
+	/********************  spin unlock ******************/
 }
 
 /*
@@ -480,11 +629,12 @@ void usbhsh_endpoint_free(struct usbhsh_hpriv *hpriv,
  */
 static void usbhsh_queue_done(struct usbhs_priv *priv, struct usbhs_pkt *pkt)
 {
-	struct usbhsh_request *ureq = usbhsh_pkt_to_req(pkt);
+	struct usbhsh_request *ureq = usbhsh_pkt_to_ureq(pkt);
 	struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv);
 	struct usb_hcd *hcd = usbhsh_hpriv_to_hcd(hpriv);
 	struct urb *urb = ureq->urb;
 	struct device *dev = usbhs_priv_to_dev(priv);
+	int status = 0;
 
 	dev_dbg(dev, "%s\n", __func__);
 
@@ -493,29 +643,43 @@ static void usbhsh_queue_done(struct usbhs_priv *priv, struct usbhs_pkt *pkt)
 		return;
 	}
 
+	if (!usbhsh_is_running(hpriv))
+		status = -ESHUTDOWN;
+
 	urb->actual_length = pkt->actual;
-	usbhsh_req_free(hpriv, ureq);
-	usbhsh_urb_to_ureq(urb) = NULL;
+	usbhsh_ureq_free(hpriv, ureq);
+
+	usbhsh_endpoint_sequence_save(hpriv, urb, pkt);
+	usbhsh_pipe_detach(hpriv, usbhsh_ep_to_uep(urb->ep));
 
 	usb_hcd_unlink_urb_from_ep(hcd, urb);
-	usb_hcd_giveback_urb(hcd, urb, 0);
+	usb_hcd_giveback_urb(hcd, urb, status);
 }
 
 static int usbhsh_queue_push(struct usb_hcd *hcd,
-			     struct usbhs_pipe *pipe,
-			     struct urb *urb)
+			     struct urb *urb,
+			     gfp_t mem_flags)
 {
-	struct usbhsh_request *ureq = usbhsh_urb_to_ureq(urb);
-	struct usbhs_pkt *pkt = &ureq->pkt;
+	struct usbhsh_hpriv *hpriv = usbhsh_hcd_to_hpriv(hcd);
+	struct usbhsh_ep *uep = usbhsh_ep_to_uep(urb->ep);
+	struct usbhs_pipe *pipe = usbhsh_uep_to_pipe(uep);
 	struct device *dev = usbhsh_hcd_to_dev(hcd);
+	struct usbhsh_request *ureq;
 	void *buf;
-	int len;
+	int len, sequence;
 
 	if (usb_pipeisoc(urb->pipe)) {
 		dev_err(dev, "pipe iso is not supported now\n");
 		return -EIO;
 	}
 
+	/* this ureq will be freed on usbhsh_queue_done() */
+	ureq = usbhsh_ureq_alloc(hpriv, urb, mem_flags);
+	if (unlikely(!ureq)) {
+		dev_err(dev, "ureq alloc fail\n");
+		return -ENOMEM;
+	}
+
 	if (usb_pipein(urb->pipe))
 		pipe->handler = &usbhs_fifo_pio_pop_handler;
 	else
@@ -524,25 +688,59 @@ static int usbhsh_queue_push(struct usb_hcd *hcd,
 	buf = (void *)(urb->transfer_buffer + urb->actual_length);
 	len = urb->transfer_buffer_length - urb->actual_length;
 
+	sequence = usb_gettoggle(urb->dev,
+				 usb_pipeendpoint(urb->pipe),
+				 usb_pipeout(urb->pipe));
+
 	dev_dbg(dev, "%s\n", __func__);
-	usbhs_pkt_push(pipe, pkt, usbhsh_queue_done,
-		       buf, len, (urb->transfer_flags & URB_ZERO_PACKET));
+	usbhs_pkt_push(pipe, &ureq->pkt, usbhsh_queue_done,
+		       buf, len, (urb->transfer_flags & URB_ZERO_PACKET),
+		       sequence);
+
 	usbhs_pkt_start(pipe);
 
 	return 0;
 }
 
+static void usbhsh_queue_force_pop(struct usbhs_priv *priv,
+				   struct usbhs_pipe *pipe)
+{
+	struct usbhs_pkt *pkt;
+
+	while (1) {
+		pkt = usbhs_pkt_pop(pipe, NULL);
+		if (!pkt)
+			break;
+
+		/*
+		 * if all packet are gone, usbhsh_endpoint_disable()
+		 * will be called.
+		 * then, attached device/endpoint/pipe will be detached
+		 */
+		usbhsh_queue_done(priv, pkt);
+	}
+}
+
+static void usbhsh_queue_force_pop_all(struct usbhs_priv *priv)
+{
+	struct usbhs_pipe *pos;
+	int i;
+
+	usbhs_for_each_pipe_with_dcp(pos, priv, i)
+		usbhsh_queue_force_pop(priv, pos);
+}
+
 /*
  *		DCP setup stage
  */
 static int usbhsh_is_request_address(struct urb *urb)
 {
-	struct usb_ctrlrequest *cmd;
+	struct usb_ctrlrequest *req;
 
-	cmd = (struct usb_ctrlrequest *)urb->setup_packet;
+	req = (struct usb_ctrlrequest *)urb->setup_packet;
 
-	if ((DeviceOutRequest    == cmd->bRequestType << 8) &&
-	    (USB_REQ_SET_ADDRESS == cmd->bRequest))
+	if ((DeviceOutRequest    == req->bRequestType << 8) &&
+	    (USB_REQ_SET_ADDRESS == req->bRequest))
 		return 1;
 	else
 		return 0;
@@ -570,11 +768,15 @@ static void usbhsh_setup_stage_packet_push(struct usbhsh_hpriv *hpriv,
 	/*
 	 * renesas_usbhs can not use original usb address.
 	 * see HARDWARE LIMITATION.
-	 * modify usb address here.
+	 * modify usb address here to use attached device.
+	 * see usbhsh_device_attach()
 	 */
 	if (usbhsh_is_request_address(urb)) {
-		/* FIXME */
-		req.wValue = 1;
+		struct usb_device *usbv = usbhsh_urb_to_usbv(urb);
+		struct usbhsh_device *udev = usbhsh_usbv_to_udev(usbv);
+
+		/* udev is a attached device */
+		req.wValue = usbhsh_device_number(hpriv, udev);
 		dev_dbg(dev, "create new address - %d\n", req.wValue);
 	}
 
@@ -595,82 +797,80 @@ static void usbhsh_setup_stage_packet_push(struct usbhsh_hpriv *hpriv,
 static void usbhsh_data_stage_packet_done(struct usbhs_priv *priv,
 					  struct usbhs_pkt *pkt)
 {
-	struct usbhsh_request *ureq = usbhsh_pkt_to_req(pkt);
+	struct usbhsh_request *ureq = usbhsh_pkt_to_ureq(pkt);
 	struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv);
-	struct urb *urb = ureq->urb;
 
 	/* this ureq was connected to urb when usbhsh_urb_enqueue()  */
 
-	usbhsh_req_free(hpriv, ureq);
-	usbhsh_urb_to_ureq(urb) = NULL;
+	usbhsh_ureq_free(hpriv, ureq);
 }
 
-static void usbhsh_data_stage_packet_push(struct usbhsh_hpriv *hpriv,
-					  struct urb *urb,
-					  struct usbhs_pipe *pipe)
+static int usbhsh_data_stage_packet_push(struct usbhsh_hpriv *hpriv,
+					 struct urb *urb,
+					 struct usbhs_pipe *pipe,
+					 gfp_t mem_flags)
+
 {
 	struct usbhsh_request *ureq;
-	struct usbhs_pkt *pkt;
 
-	/*
-	 * FIXME
-	 *
-	 * data stage uses ureq which is connected to urb
-	 * see usbhsh_urb_enqueue() :: alloc new request.
-	 * it will be freed in usbhsh_data_stage_packet_done()
-	 */
-	ureq	= usbhsh_urb_to_ureq(urb);
-	pkt	= &ureq->pkt;
+	/* this ureq will be freed on usbhsh_data_stage_packet_done() */
+	ureq = usbhsh_ureq_alloc(hpriv, urb, mem_flags);
+	if (unlikely(!ureq))
+		return -ENOMEM;
 
 	if (usb_pipein(urb->pipe))
 		pipe->handler = &usbhs_dcp_data_stage_in_handler;
 	else
 		pipe->handler = &usbhs_dcp_data_stage_out_handler;
 
-	usbhs_pkt_push(pipe, pkt,
+	usbhs_pkt_push(pipe, &ureq->pkt,
 		       usbhsh_data_stage_packet_done,
 		       urb->transfer_buffer,
 		       urb->transfer_buffer_length,
-		       (urb->transfer_flags & URB_ZERO_PACKET));
+		       (urb->transfer_flags & URB_ZERO_PACKET),
+		       -1);
+
+	return 0;
 }
 
 /*
  *		DCP status stage
  */
-static void usbhsh_status_stage_packet_push(struct usbhsh_hpriv *hpriv,
+static int usbhsh_status_stage_packet_push(struct usbhsh_hpriv *hpriv,
 					    struct urb *urb,
-					    struct usbhs_pipe *pipe)
+					    struct usbhs_pipe *pipe,
+					    gfp_t mem_flags)
 {
 	struct usbhsh_request *ureq;
-	struct usbhs_pkt *pkt;
 
-	/*
-	 * FIXME
-	 *
-	 * status stage uses allocated ureq.
-	 * it will be freed on usbhsh_queue_done()
-	 */
-	ureq	= usbhsh_req_alloc(hpriv, urb, GFP_KERNEL);
-	pkt	= &ureq->pkt;
+	/* This ureq will be freed on usbhsh_queue_done() */
+	ureq = usbhsh_ureq_alloc(hpriv, urb, mem_flags);
+	if (unlikely(!ureq))
+		return -ENOMEM;
 
 	if (usb_pipein(urb->pipe))
 		pipe->handler = &usbhs_dcp_status_stage_in_handler;
 	else
 		pipe->handler = &usbhs_dcp_status_stage_out_handler;
 
-	usbhs_pkt_push(pipe, pkt,
+	usbhs_pkt_push(pipe, &ureq->pkt,
 		       usbhsh_queue_done,
 		       NULL,
 		       urb->transfer_buffer_length,
-		       0);
+		       0, -1);
+
+	return 0;
 }
 
 static int usbhsh_dcp_queue_push(struct usb_hcd *hcd,
-				 struct usbhsh_hpriv *hpriv,
-				 struct usbhs_pipe *pipe,
-				 struct urb *urb)
+				 struct urb *urb,
+				 gfp_t mflags)
 {
+	struct usbhsh_hpriv *hpriv = usbhsh_hcd_to_hpriv(hcd);
+	struct usbhsh_ep *uep = usbhsh_ep_to_uep(urb->ep);
+	struct usbhs_pipe *pipe = usbhsh_uep_to_pipe(uep);
 	struct device *dev = usbhsh_hcd_to_dev(hcd);
+	int ret;
 
 	dev_dbg(dev, "%s\n", __func__);
 
@@ -686,13 +886,22 @@ static int usbhsh_dcp_queue_push(struct usb_hcd *hcd,
 	 *
 	 * It is pushed only when urb has buffer.
 	 */
-	if (urb->transfer_buffer_length)
-		usbhsh_data_stage_packet_push(hpriv, urb, pipe);
+	if (urb->transfer_buffer_length) {
+		ret = usbhsh_data_stage_packet_push(hpriv, urb, pipe, mflags);
+		if (ret < 0) {
+			dev_err(dev, "data stage failed\n");
+			return ret;
+		}
+	}
 
 	/*
 	 * status stage
 	 */
-	usbhsh_status_stage_packet_push(hpriv, urb, pipe);
+	ret = usbhsh_status_stage_packet_push(hpriv, urb, pipe, mflags);
+	if (ret < 0) {
+		dev_err(dev, "status stage failed\n");
+		return ret;
+	}
 
 	/*
 	 * start pushed packets
@@ -729,71 +938,82 @@ static int usbhsh_urb_enqueue(struct usb_hcd *hcd,
 	struct usbhsh_hpriv *hpriv = usbhsh_hcd_to_hpriv(hcd);
 	struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv);
 	struct device *dev = usbhs_priv_to_dev(priv);
-	struct usb_device *usbv = usbhsh_urb_to_usbv(urb);
 	struct usb_host_endpoint *ep = urb->ep;
-	struct usbhsh_request *ureq;
-	struct usbhsh_device *udev, *new_udev = NULL;
-	struct usbhs_pipe *pipe;
-	struct usbhsh_ep *uep;
+	struct usbhsh_device *new_udev = NULL;
 	int is_dir_in = usb_pipein(urb->pipe);
-
+	int i;
 	int ret;
 
 	dev_dbg(dev, "%s (%s)\n", __func__, is_dir_in ? "in" : "out");
 
+	if (!usbhsh_is_running(hpriv)) {
+		ret = -EIO;
+		dev_err(dev, "host is not running\n");
+		goto usbhsh_urb_enqueue_error_not_linked;
+	}
+
 	ret = usb_hcd_link_urb_to_ep(hcd, urb);
-	if (ret)
+	if (ret) {
+		dev_err(dev, "urb link failed\n");
 		goto usbhsh_urb_enqueue_error_not_linked;
+	}
 
 	/*
-	 * get udev
+	 * attach udev if needed
+	 * see [image of mod_host]
 	 */
-	udev = usbhsh_usbv_to_udev(usbv);
-	if (!udev) {
-		new_udev = usbhsh_device_alloc(hpriv, urb);
-		if (!new_udev)
+	if (!usbhsh_device_get(hpriv, urb)) {
+		new_udev = usbhsh_device_attach(hpriv, urb);
+		if (!new_udev) {
+			ret = -EIO;
+			dev_err(dev, "device attach failed\n");
 			goto usbhsh_urb_enqueue_error_not_linked;
-
-		udev = new_udev;
+		}
 	}
 
 	/*
-	 * get uep
+	 * attach endpoint if needed
+	 * see [image of mod_host]
 	 */
-	uep = usbhsh_ep_to_uep(ep);
-	if (!uep) {
-		uep = usbhsh_endpoint_alloc(hpriv, udev, ep,
-					    is_dir_in, mem_flags);
-		if (!uep)
+	if (!usbhsh_ep_to_uep(ep)) {
+		ret = usbhsh_endpoint_attach(hpriv, urb, mem_flags);
+		if (ret < 0) {
+			dev_err(dev, "endpoint attach failed\n");
 			goto usbhsh_urb_enqueue_error_free_device;
+		}
 	}
-	pipe = usbhsh_uep_to_pipe(uep);
 
 	/*
-	 * alloc new request
+	 * attach pipe to endpoint
+	 * see [image of mod_host]
 	 */
-	ureq = usbhsh_req_alloc(hpriv, urb, mem_flags);
-	if (unlikely(!ureq)) {
-		ret = -ENOMEM;
+	for (i = 0; i < 1024; i++) {
+		ret = usbhsh_pipe_attach(hpriv, urb);
+		if (ret < 0)
+			msleep(100);
+		else
+			break;
+	}
+	if (ret < 0) {
+		dev_err(dev, "pipe attach failed\n");
 		goto usbhsh_urb_enqueue_error_free_endpoint;
 	}
-	usbhsh_urb_to_ureq(urb) = ureq;
 
 	/*
 	 * push packet
 	 */
 	if (usb_pipecontrol(urb->pipe))
-		usbhsh_dcp_queue_push(hcd, hpriv, pipe, urb);
+		ret = usbhsh_dcp_queue_push(hcd, urb, mem_flags);
 	else
-		usbhsh_queue_push(hcd, pipe, urb);
+		ret = usbhsh_queue_push(hcd, urb, mem_flags);
 
-	return 0;
+	return ret;
 
 usbhsh_urb_enqueue_error_free_endpoint:
-	usbhsh_endpoint_free(hpriv, ep);
+	usbhsh_endpoint_detach(hpriv, ep);
 usbhsh_urb_enqueue_error_free_device:
 	if (new_udev)
-		usbhsh_device_free(hpriv, new_udev);
+		usbhsh_device_detach(hpriv, new_udev);
 usbhsh_urb_enqueue_error_not_linked:
 
 	dev_dbg(dev, "%s error\n", __func__);
@@ -807,8 +1027,11 @@ static int usbhsh_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status)
 	struct usbhsh_request *ureq = usbhsh_urb_to_ureq(urb);
 
 	if (ureq) {
-		usbhsh_req_free(hpriv, ureq);
-		usbhsh_urb_to_ureq(urb) = NULL;
+		struct usbhs_priv *priv = usbhsh_hpriv_to_priv(hpriv);
+		struct usbhs_pkt *pkt = &ureq->pkt;
+
+		usbhs_pkt_pop(pkt->pipe, pkt);
+		usbhsh_queue_done(priv, pkt);
 	}
 
 	return 0;
@@ -823,7 +1046,7 @@ static void usbhsh_endpoint_disable(struct usb_hcd *hcd,
 
 	/*
 	 * this function might be called manytimes by same hcd/ep
-	 * in-endpoitn == out-endpoint if ep == dcp.
+	 * in-endpoint == out-endpoint if ep == dcp.
 	 */
 	if (!uep)
 		return;
@@ -831,15 +1054,14 @@ static void usbhsh_endpoint_disable(struct usb_hcd *hcd,
 	udev	= usbhsh_uep_to_udev(uep);
 	hpriv	= usbhsh_hcd_to_hpriv(hcd);
 
-	usbhsh_endpoint_free(hpriv, ep);
-	ep->hcpriv = NULL;
+	usbhsh_endpoint_detach(hpriv, ep);
 
 	/*
 	 * if there is no endpoint,
 	 * free device
 	 */
 	if (!usbhsh_device_has_endpoint(udev))
-		usbhsh_device_free(hpriv, udev);
+		usbhsh_device_detach(hpriv, udev);
 }
 
 static int usbhsh_hub_status_data(struct usb_hcd *hcd, char *buf)
@@ -919,6 +1141,8 @@ static int __usbhsh_hub_port_feature(struct usbhsh_hpriv *hpriv,
 				       USB_PORT_STAT_HIGH_SPEED |
 				       USB_PORT_STAT_LOW_SPEED);
 
+		usbhsh_queue_force_pop_all(priv);
+
 		usbhs_bus_send_reset(priv);
 		msleep(20);
 		usbhs_bus_send_sof_enable(priv);
@@ -1082,6 +1306,20 @@ static int usbhsh_irq_attch(struct usbhs_priv *priv,
 	usbhsh_port_stat_set(hpriv, USB_PORT_STAT_CONNECTION);
 	usbhsh_port_stat_set(hpriv, USB_PORT_STAT_C_CONNECTION << 16);
 
+	/*
+	 * attch interrupt might happen infinitely on some device
+	 * (on self power USB hub ?)
+	 * disable it here.
+	 *
+	 * usbhsh_is_running() becomes effective
+	 * according to this process.
+	 * see
+	 *	usbhsh_is_running()
+	 *	usbhsh_urb_enqueue()
+	 */
+	hpriv->mod.irq_attch = NULL;
+	usbhs_irq_callback_update(priv, &hpriv->mod);
+
 	return 0;
 }
 
@@ -1096,6 +1334,24 @@ static int usbhsh_irq_dtch(struct usbhs_priv *priv,
 	usbhsh_port_stat_clear(hpriv, USB_PORT_STAT_CONNECTION);
 	usbhsh_port_stat_set(hpriv, USB_PORT_STAT_C_CONNECTION << 16);
 
+	/*
+	 * enable attch interrupt again
+	 *
+	 * usbhsh_is_running() becomes invalid
+	 * according to this process.
+	 * see
+	 *	usbhsh_is_running()
+	 *	usbhsh_urb_enqueue()
+	 */
+	hpriv->mod.irq_attch = usbhsh_irq_attch;
+	usbhs_irq_callback_update(priv, &hpriv->mod);
+
+	/*
+	 * usbhsh_queue_force_pop_all() should be called
+	 * after usbhsh_is_running() becomes invalid.
+	 */
+	usbhsh_queue_force_pop_all(priv);
+
 	return 0;
 }
 
@@ -1131,7 +1387,6 @@ static int usbhsh_irq_setup_err(struct usbhs_priv *priv,
 static void usbhsh_pipe_init_for_host(struct usbhs_priv *priv)
 {
 	struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv);
-	struct usbhsh_pipe_info *pipe_info = hpriv->pipe_info;
 	struct usbhs_pipe *pipe;
 	u32 *pipe_type = usbhs_get_dparam(priv, pipe_type);
 	int pipe_size = usbhs_get_dparam(priv, pipe_size);
@@ -1140,7 +1395,6 @@ static void usbhsh_pipe_init_for_host(struct usbhs_priv *priv)
 	/* init all pipe */
 	old_type = USB_ENDPOINT_XFER_CONTROL;
 	for (i = 0; i < pipe_size; i++) {
-		pipe_info[i].usr_cnt	= 0;
 
 		/*
 		 * data "output" will be finished as soon as possible,
@@ -1174,7 +1428,7 @@ static void usbhsh_pipe_init_for_host(struct usbhs_priv *priv)
 						 dir_in);
 		}
 
-		pipe->mod_private = pipe_info + i;
+		pipe->mod_private = NULL;
 	}
 }
 
@@ -1205,9 +1459,7 @@ static int usbhsh_start(struct usbhs_priv *priv)
 	 * - host
 	 * - usb module
 	 */
-	usbhs_sys_hispeed_ctrl(priv, 1);
 	usbhs_sys_host_ctrl(priv, 1);
-	usbhs_sys_usb_ctrl(priv, 1);
 
 	/*
 	 * enable irq callback
@@ -1242,9 +1494,7 @@ static int usbhsh_stop(struct usbhs_priv *priv)
 	usb_remove_hcd(hcd);
 
 	/* disable sys */
-	usbhs_sys_hispeed_ctrl(priv, 0);
 	usbhs_sys_host_ctrl(priv, 0);
-	usbhs_sys_usb_ctrl(priv, 0);
 
 	dev_dbg(dev, "quit host\n");
 
@@ -1255,10 +1505,8 @@ int usbhs_mod_host_probe(struct usbhs_priv *priv)
 {
 	struct usbhsh_hpriv *hpriv;
 	struct usb_hcd *hcd;
-	struct usbhsh_pipe_info *pipe_info;
 	struct usbhsh_device *udev;
 	struct device *dev = usbhs_priv_to_dev(priv);
-	int pipe_size = usbhs_get_dparam(priv, pipe_size);
 	int i;
 
 	/* initialize hcd */
@@ -1269,12 +1517,6 @@ int usbhs_mod_host_probe(struct usbhs_priv *priv)
 	}
 	hcd->has_tt = 1; /* for low/full speed */
 
-	pipe_info = kzalloc(sizeof(*pipe_info) * pipe_size, GFP_KERNEL);
-	if (!pipe_info) {
-		dev_err(dev, "Could not allocate pipe_info\n");
-		goto usbhs_mod_host_probe_err;
-	}
-
 	/*
 	 * CAUTION
 	 *
@@ -1294,9 +1536,6 @@ int usbhs_mod_host_probe(struct usbhs_priv *priv)
 	hpriv->mod.name		= "host";
 	hpriv->mod.start	= usbhsh_start;
 	hpriv->mod.stop		= usbhsh_stop;
-	hpriv->pipe_info	= pipe_info;
-	hpriv->pipe_size	= pipe_size;
-	usbhsh_req_list_init(hpriv);
 	usbhsh_port_stat_init(hpriv);
 
 	/* init all device */
@@ -1308,11 +1547,6 @@ int usbhs_mod_host_probe(struct usbhs_priv *priv)
 	dev_info(dev, "host probed\n");
 
 	return 0;
-
-usbhs_mod_host_probe_err:
-	usb_put_hcd(hcd);
-
-	return -ENOMEM;
 }
 
 int usbhs_mod_host_remove(struct usbhs_priv *priv)
@@ -1320,8 +1554,6 @@ int usbhs_mod_host_remove(struct usbhs_priv *priv)
 	struct usbhsh_hpriv *hpriv = usbhsh_priv_to_hpriv(priv);
 	struct usb_hcd *hcd = usbhsh_hpriv_to_hcd(hpriv);
 
-	usbhsh_req_list_quit(hpriv);
-
 	usb_put_hcd(hcd);
 
 	return 0;
diff --git a/drivers/usb/renesas_usbhs/pipe.c b/drivers/usb/renesas_usbhs/pipe.c
index c74389ce2177..feb06d6d2814 100644
--- a/drivers/usb/renesas_usbhs/pipe.c
+++ b/drivers/usb/renesas_usbhs/pipe.c
@@ -257,6 +257,13 @@ void usbhs_pipe_stall(struct usbhs_pipe *pipe)
 	}
 }
 
+int usbhs_pipe_is_stall(struct usbhs_pipe *pipe)
+{
+	u16 pid = usbhsp_pipectrl_get(pipe) & PID_MASK;
+
+	return (int)(pid == PID_STALL10 || pid == PID_STALL11);
+}
+
 /*
  *		pipe setup
  */
@@ -323,8 +330,7 @@ static u16 usbhsp_setup_pipecfg(struct usbhs_pipe *pipe,
 	if (dir_in)
 		usbhsp_flags_set(pipe, IS_DIR_HOST);
 
-	if ((is_host  && !dir_in) ||
-	    (!is_host && dir_in))
+	if (!!is_host ^ !!dir_in)
 		dir |= DIR_OUT;
 
 	if (!dir)
@@ -471,10 +477,27 @@ int usbhs_pipe_is_dir_host(struct usbhs_pipe *pipe)
 	return usbhsp_flags_has(pipe, IS_DIR_HOST);
 }
 
-void usbhs_pipe_data_sequence(struct usbhs_pipe *pipe, int data)
+void usbhs_pipe_data_sequence(struct usbhs_pipe *pipe, int sequence)
 {
 	u16 mask = (SQCLR | SQSET);
-	u16 val = (data) ? SQSET : SQCLR;
+	u16 val;
+
+	/*
+	 * sequence
+	 *  0  : data0
+	 *  1  : data1
+	 *  -1 : no change
+	 */
+	switch (sequence) {
+	case 0:
+		val = SQCLR;
+		break;
+	case 1:
+		val = SQSET;
+		break;
+	default:
+		return;
+	}
 
 	usbhsp_pipectrl_set(pipe, mask, val);
 }
diff --git a/drivers/usb/renesas_usbhs/pipe.h b/drivers/usb/renesas_usbhs/pipe.h
index 6334fc644cc0..fa18b7dc2b2a 100644
--- a/drivers/usb/renesas_usbhs/pipe.h
+++ b/drivers/usb/renesas_usbhs/pipe.h
@@ -87,6 +87,7 @@ int usbhs_pipe_is_accessible(struct usbhs_pipe *pipe);
 void usbhs_pipe_enable(struct usbhs_pipe *pipe);
 void usbhs_pipe_disable(struct usbhs_pipe *pipe);
 void usbhs_pipe_stall(struct usbhs_pipe *pipe);
+int usbhs_pipe_is_stall(struct usbhs_pipe *pipe);
 void usbhs_pipe_select_fifo(struct usbhs_pipe *pipe, struct usbhs_fifo *fifo);
 void usbhs_pipe_config_update(struct usbhs_pipe *pipe, u16 devsel,
 			      u16 epnum, u16 maxp);
diff --git a/drivers/usb/serial/ChangeLog.history b/drivers/usb/serial/ChangeLog.history
deleted file mode 100644
index f13fd488ebec..000000000000
--- a/drivers/usb/serial/ChangeLog.history
+++ /dev/null
@@ -1,730 +0,0 @@
-This is the contents of some of the drivers/usb/serial/ files that had  old
-changelog comments.  They were quite old, and out of date, and we don't keep
-them anymore, so I've put them here, away from the source files, in case
-people still care to see them.
-
-- Greg Kroah-Hartman <greg@kroah.com> October 20, 2005
-
------------------------------------------------------------------------
-usb-serial.h Change Log comments:
-
- (03/26/2002) gkh
-	removed the port->tty check from port_paranoia_check() due to serial
-	consoles not having a tty device assigned to them.
-
- (12/03/2001) gkh
-	removed active from the port structure.
-	added documentation to the usb_serial_device_type structure
-
- (10/10/2001) gkh
-	added vendor and product to serial structure.  Needed to determine device
-	owner when the device is disconnected.
-
- (05/30/2001) gkh
-	added sem to port structure and removed port_lock
-
- (10/05/2000) gkh
-	Added interrupt_in_endpointAddress and bulk_in_endpointAddress to help
-	fix bug with urb->dev not being set properly, now that the usb core
-	needs it.
-
- (09/11/2000) gkh
-	Added usb_serial_debug_data function to help get rid of #DEBUG in the
-	drivers.
-
- (08/28/2000) gkh
-	Added port_lock to port structure.
-
- (08/08/2000) gkh
-	Added open_count to port structure.
-
- (07/23/2000) gkh
-	Added bulk_out_endpointAddress to port structure.
-
- (07/19/2000) gkh, pberger, and borchers
-	Modifications to allow usb-serial drivers to be modules.
-
------------------------------------------------------------------------
-usb-serial.c Change Log comments:
-
- (12/10/2002) gkh
-	Split the ports off into their own struct device, and added a
-	usb-serial bus driver.
-
- (11/19/2002) gkh
-	removed a few #ifdefs for the generic code and cleaned up the failure
-	logic in initialization.
-
- (10/02/2002) gkh
-	moved the console code to console.c and out of this file.
-
- (06/05/2002) gkh
-	moved location of startup() call in serial_probe() until after all
-	of the port information and endpoints are initialized.  This makes
-	things easier for some drivers.
-
- (04/10/2002) gkh
-	added serial_read_proc function which creates a
-	/proc/tty/driver/usb-serial file.
-
- (03/27/2002) gkh
-	Got USB serial console code working properly and merged into the main
-	version of the tree.  Thanks to Randy Dunlap for the initial version
-	of this code, and for pushing me to finish it up.
-	The USB serial console works with any usb serial driver device.
-
- (03/21/2002) gkh
-	Moved all manipulation of port->open_count into the core.  Now the
-	individual driver's open and close functions are called only when the
-	first open() and last close() is called.  Making the drivers a bit
-	smaller and simpler.
-	Fixed a bug if a driver didn't have the owner field set.
-
- (02/26/2002) gkh
-	Moved all locking into the main serial_* functions, instead of having
-	the individual drivers have to grab the port semaphore.  This should
-	reduce races.
-	Reworked the MOD_INC logic a bit to always increment and decrement, even
-	if the generic driver is being used.
-
- (10/10/2001) gkh
-	usb_serial_disconnect() now sets the serial->dev pointer is to NULL to
-	help prevent child drivers from accessing the device since it is now
-	gone.
-
- (09/13/2001) gkh
-	Moved generic driver initialize after we have registered with the USB
-	core.  Thanks to Randy Dunlap for pointing this problem out.
-
- (07/03/2001) gkh
-	Fixed module paramater size.  Thanks to John Brockmeyer for the pointer.
-	Fixed vendor and product getting defined through the MODULE_PARM macro
-	if the Generic driver wasn't compiled in.
-	Fixed problem with generic_shutdown() not being called for drivers that
-	don't have a shutdown() function.
-
- (06/06/2001) gkh
-	added evil hack that is needed for the prolific pl2303 device due to the
-	crazy way its endpoints are set up.
-
- (05/30/2001) gkh
-	switched from using spinlock to a semaphore, which fixes lots of problems.
-
- (04/08/2001) gb
-	Identify version on module load.
-
- 2001_02_05 gkh
-	Fixed buffer overflows bug with the generic serial driver.  Thanks to
-	Todd Squires <squirest@ct0.com> for fixing this.
-
- (01/10/2001) gkh
-	Fixed bug where the generic serial adaptor grabbed _any_ device that was
-	offered to it.
-
- (12/12/2000) gkh
-	Removed MOD_INC and MOD_DEC from poll and disconnect functions, and
-	moved them to the serial_open and serial_close functions.
-	Also fixed bug with there not being a MOD_DEC for the generic driver
-	(thanks to Gary Brubaker for finding this.)
-
- (11/29/2000) gkh
-	Small NULL pointer initialization cleanup which saves a bit of disk image
-
- (11/01/2000) Adam J. Richter
-	instead of using idVendor/idProduct pairs, usb serial drivers
-	now identify their hardware interest with usb_device_id tables,
-	which they usually have anyhow for use with MODULE_DEVICE_TABLE.
-
- (10/05/2000) gkh
-	Fixed bug with urb->dev not being set properly, now that the usb
-	core needs it.
-
- (09/11/2000) gkh
-	Removed DEBUG #ifdefs with call to usb_serial_debug_data
-
- (08/28/2000) gkh
-	Added port_lock to port structure.
-	Added locks for SMP safeness to generic driver
-	Fixed the ability to open a generic device's port more than once.
-
- (07/23/2000) gkh
-	Added bulk_out_endpointAddress to port structure.
-
- (07/19/2000) gkh, pberger, and borchers
-	Modifications to allow usb-serial drivers to be modules.
-
- (07/03/2000) gkh
-	Added more debugging to serial_ioctl call
-
- (06/25/2000) gkh
-	Changed generic_write_bulk_callback to not call wake_up_interruptible
-	directly, but to have port_softint do it at a safer time.
-
- (06/23/2000) gkh
-	Cleaned up debugging statements in a quest to find UHCI timeout bug.
-
- (05/22/2000) gkh
-	Changed the makefile, enabling the big CONFIG_USB_SERIAL_SOMTHING to be
-	removed from the individual device source files.
-
- (05/03/2000) gkh
-	Added the Digi Acceleport driver from Al Borchers and Peter Berger.
-
- (05/02/2000) gkh
-	Changed devfs and tty register code to work properly now. This was based on
-	the ACM driver changes by Vojtech Pavlik.
-
- (04/27/2000) Ryan VanderBijl
- 	Put calls to *_paranoia_checks into one function.
-
- (04/23/2000) gkh
-	Fixed bug that Randy Dunlap found for Generic devices with no bulk out ports.
-	Moved when the startup code printed out the devices that are supported.
-
- (04/19/2000) gkh
-	Added driver for ZyXEL omni.net lcd plus ISDN TA
-	Made startup info message specify which drivers were compiled in.
-
- (04/03/2000) gkh
-	Changed the probe process to remove the module unload races.
-	Changed where the tty layer gets initialized to have devfs work nicer.
-	Added initial devfs support.
-
- (03/26/2000) gkh
-	Split driver up into device specific pieces.
-
- (03/19/2000) gkh
-	Fixed oops that could happen when device was removed while a program
-	was talking to the device.
-	Removed the static urbs and now all urbs are created and destroyed
-	dynamically.
-	Reworked the internal interface. Now everything is based on the
-	usb_serial_port structure instead of the larger usb_serial structure.
-	This fixes the bug that a multiport device could not have more than
-	one port open at one time.
-
- (03/17/2000) gkh
-	Added config option for debugging messages.
-	Added patch for keyspan pda from Brian Warner.
-
- (03/06/2000) gkh
-	Added the keyspan pda code from Brian Warner <warner@lothar.com>
-	Moved a bunch of the port specific stuff into its own structure. This
-	is in anticipation of the true multiport devices (there's a bug if you
-	try to access more than one port of any multiport device right now)
-
- (02/21/2000) gkh
-	Made it so that any serial devices only have to specify which functions
-	they want to overload from the generic function calls (great,
-	inheritance in C, in a driver, just what I wanted...)
-	Added support for set_termios and ioctl function calls. No drivers take
-	advantage of this yet.
-	Removed the #ifdef MODULE, now there is no module specific code.
-	Cleaned up a few comments in usb-serial.h that were wrong (thanks again
-	to Miles Lott).
-	Small fix to get_free_serial.
-
- (02/14/2000) gkh
-	Removed the Belkin and Peracom functionality from the driver due to
-	the lack of support from the vendor, and me not wanting people to
-	accidenatly buy the device, expecting it to work with Linux.
-	Added read_bulk_callback and write_bulk_callback to the type structure
-	for the needs of the FTDI and WhiteHEAT driver.
-	Changed all reverences to FTDI to FTDI_SIO at the request of Bill
-	Ryder.
-	Changed the output urb size back to the max endpoint size to make
-	the ftdi_sio driver have it easier, and due to the fact that it didn't
-	really increase the speed any.
-
- (02/11/2000) gkh
-	Added VISOR_FUNCTION_CONSOLE to the visor startup function. This was a
-	patch from Miles Lott (milos@insync.net).
-	Fixed bug with not restoring the minor range that a device grabs, if
-	the startup function fails (thanks Miles for finding this).
-
- (02/05/2000) gkh
-	Added initial framework for the Keyspan PDA serial converter so that
-	Brian Warner has a place to put his code.
-	Made the ezusb specific functions generic enough that different
-	devices can use them (whiteheat and keyspan_pda both need them).
-	Split out a whole bunch of structure and other stuff to a separate
-	usb-serial.h file.
-	Made the Visor connection messages a little more understandable, now
-	that Miles Lott (milos@insync.net) has gotten the Generic channel to
-	work. Also made them always show up in the log file.
-
- (01/25/2000) gkh
-	Added initial framework for FTDI serial converter so that Bill Ryder
-	has a place to put his code.
-	Added the vendor specific info from Handspring. Now we can print out
-	informational debug messages as well as understand what is happening.
-
- (01/23/2000) gkh
-	Fixed problem of crash when trying to open a port that didn't have a
-	device assigned to it. Made the minor node finding a little smarter,
-	now it looks to find a continuous space for the new device.
-
- (01/21/2000) gkh
-	Fixed bug in visor_startup with patch from Miles Lott (milos@insync.net)
-	Fixed get_serial_by_minor which was all messed up for multi port
-	devices. Fixed multi port problem for generic devices. Now the number
-	of ports is determined by the number of bulk out endpoints for the
-	generic device.
-
- (01/19/2000) gkh
-	Removed lots of cruft that was around from the old (pre urb) driver
-	interface.
-	Made the serial_table dynamic. This should save lots of memory when
-	the number of minor nodes goes up to 256.
-	Added initial support for devices that have more than one port.
-	Added more debugging comments for the Visor, and added a needed
-	set_configuration call.
-
- (01/17/2000) gkh
-	Fixed the WhiteHEAT firmware (my processing tool had a bug)
-	and added new debug loader firmware for it.
-	Removed the put_char function as it isn't really needed.
-	Added visor startup commands as found by the Win98 dump.
-
- (01/13/2000) gkh
-	Fixed the vendor id for the generic driver to the one I meant it to be.
-
- (01/12/2000) gkh
-	Forget the version numbering...that's pretty useless...
-	Made the driver able to be compiled so that the user can select which
-	converter they want to use. This allows people who only want the Visor
-	support to not pay the memory size price of the WhiteHEAT.
-	Fixed bug where the generic driver (idVendor=0000 and idProduct=0000)
-	grabbed the root hub. Not good.
-
- version 0.4.0 (01/10/2000) gkh
-	Added whiteheat.h containing the firmware for the ConnectTech WhiteHEAT
-	device. Added startup function to allow firmware to be downloaded to
-	a device if it needs to be.
-	Added firmware download logic to the WhiteHEAT device.
-	Started to add #defines to split up the different drivers for potential
-	configuration option.
-
- version 0.3.1 (12/30/99) gkh
-      Fixed problems with urb for bulk out.
-      Added initial support for multiple sets of endpoints. This enables
-      the Handspring Visor to be attached successfully. Only the first
-      bulk in / bulk out endpoint pair is being used right now.
-
- version 0.3.0 (12/27/99) gkh
-	Added initial support for the Handspring Visor based on a patch from
-	Miles Lott (milos@sneety.insync.net)
-	Cleaned up the code a bunch and converted over to using urbs only.
-
- version 0.2.3 (12/21/99) gkh
-	Added initial support for the Connect Tech WhiteHEAT converter.
-	Incremented the number of ports in expectation of getting the
-	WhiteHEAT to work properly (4 ports per connection).
-	Added notification on insertion and removal of what port the
-	device is/was connected to (and what kind of device it was).
-
- version 0.2.2 (12/16/99) gkh
-	Changed major number to the new allocated number. We're legal now!
-
- version 0.2.1 (12/14/99) gkh
-	Fixed bug that happens when device node is opened when there isn't a
-	device attached to it. Thanks to marek@webdesign.no for noticing this.
-
- version 0.2.0 (11/10/99) gkh
-	Split up internals to make it easier to add different types of serial
-	converters to the code.
-	Added a "generic" driver that gets it's vendor and product id
-	from when the module is loaded. Thanks to David E. Nelson (dnelson@jump.net)
-	for the idea and sample code (from the usb scanner driver.)
-	Cleared up any licensing questions by releasing it under the GNU GPL.
-
- version 0.1.2 (10/25/99) gkh
- 	Fixed bug in detecting device.
-
- version 0.1.1 (10/05/99) gkh
- 	Changed the major number to not conflict with anything else.
-
- version 0.1 (09/28/99) gkh
- 	Can recognize the two different devices and start up a read from
-	device when asked to. Writes also work. No control signals yet, this
-	all is vendor specific data (i.e. no spec), also no control for
-	different baud rates or other bit settings.
-	Currently we are using the same devid as the acm driver. This needs
-	to change.
-
------------------------------------------------------------------------
-visor.c Change Log comments:
-
- (06/03/2003) Judd Montgomery <judd at jpilot.org>
-     Added support for module parameter options for untested/unknown
-     devices.
-
- (03/09/2003) gkh
-	Added support for the Sony Clie NZ90V device.  Thanks to Martin Brachtl
-	<brachtl@redgrep.cz> for the information.
-
- (03/05/2003) gkh
-	Think Treo support is now working.
-
- (04/03/2002) gkh
-	Added support for the Sony OS 4.1 devices.  Thanks to Hiroyuki ARAKI
-	<hiro@zob.ne.jp> for the information.
-
- (03/27/2002) gkh
-	Removed assumptions that port->tty was always valid (is not true
-	for usb serial console devices.)
-
- (03/23/2002) gkh
-	Added support for the Palm i705 device, thanks to Thomas Riemer
-	<tom@netmech.com> for the information.
-
- (03/21/2002) gkh
-	Added support for the Palm m130 device, thanks to Udo Eisenbarth
-	<udo.eisenbarth@web.de> for the information.
-
- (02/27/2002) gkh
-	Reworked the urb handling logic.  We have no more pool, but dynamically
-	allocate the urb and the transfer buffer on the fly.  In testing this
-	does not incure any measurable overhead.  This also relies on the fact
-	that we have proper reference counting logic for urbs.
-
- (02/21/2002) SilaS
-  Added initial support for the Palm m515 devices.
-
- (02/14/2002) gkh
-	Added support for the Clie S-360 device.
-
- (12/18/2001) gkh
-	Added better Clie support for 3.5 devices.  Thanks to Geoffrey Levand
-	for the patch.
-
- (11/11/2001) gkh
-	Added support for the m125 devices, and added check to prevent oopses
-	for Clié devices that lie about the number of ports they have.
-
- (08/30/2001) gkh
-	Added support for the Clie devices, both the 3.5 and 4.0 os versions.
-	Many thanks to Daniel Burke, and Bryan Payne for helping with this.
-
- (08/23/2001) gkh
-	fixed a few potential bugs pointed out by Oliver Neukum.
-
- (05/30/2001) gkh
-	switched from using spinlock to a semaphore, which fixes lots of problems.
-
- (05/28/2000) gkh
-	Added initial support for the Palm m500 and Palm m505 devices.
-
- (04/08/2001) gb
-	Identify version on module load.
-
- (01/21/2000) gkh
-	Added write_room and chars_in_buffer, as they were previously using the
-	generic driver versions which is all wrong now that we are using an urb
-	pool.  Thanks to Wolfgang Grandegger for pointing this out to me.
-	Removed count assignment in the write function, which was not needed anymore
-	either.  Thanks to Al Borchers for pointing this out.
-
- (12/12/2000) gkh
-	Moved MOD_DEC to end of visor_close to be nicer, as the final write
-	message can sleep.
-
- (11/12/2000) gkh
-	Fixed bug with data being dropped on the floor by forcing tty->low_latency
-	to be on.  Hopefully this fixes the OHCI issue!
-
- (11/01/2000) Adam J. Richter
-	usb_device_id table support
-
- (10/05/2000) gkh
-	Fixed bug with urb->dev not being set properly, now that the usb
-	core needs it.
-
- (09/11/2000) gkh
-	Got rid of always calling kmalloc for every urb we wrote out to the
-	device.
-	Added visor_read_callback so we can keep track of bytes in and out for
-	those people who like to know the speed of their device.
-	Removed DEBUG #ifdefs with call to usb_serial_debug_data
-
- (09/06/2000) gkh
-	Fixed oops in visor_exit.  Need to uncomment usb_unlink_urb call _after_
-	the host controller drivers set urb->dev = NULL when the urb is finished.
-
- (08/28/2000) gkh
-	Added locks for SMP safeness.
-
- (08/08/2000) gkh
-	Fixed endian problem in visor_startup.
-	Fixed MOD_INC and MOD_DEC logic and the ability to open a port more
-	than once.
-
- (07/23/2000) gkh
-	Added pool of write urbs to speed up transfers to the visor.
-
- (07/19/2000) gkh
-	Added module_init and module_exit functions to handle the fact that this
-	driver is a loadable module now.
-
- (07/03/2000) gkh
-	Added visor_set_ioctl and visor_set_termios functions (they don't do much
-	of anything, but are good for debugging.)
-
- (06/25/2000) gkh
-	Fixed bug in visor_unthrottle that should help with the disconnect in PPP
-	bug that people have been reporting.
-
- (06/23/2000) gkh
-	Cleaned up debugging statements in a quest to find UHCI timeout bug.
-
- (04/27/2000) Ryan VanderBijl
- 	Fixed memory leak in visor_close
-
- (03/26/2000) gkh
-	Split driver up into device specific pieces.
-
------------------------------------------------------------------------
-pl2303.c Change Log comments:
-
- 2002_Mar_26 gkh
-	allowed driver to work properly if there is no tty assigned to a port
-	(this happens for serial console devices.)
-
- 2001_Oct_06 gkh
-	Added RTS and DTR line control.  Thanks to joe@bndlg.de for parts of it.
-
- 2001_Sep_19 gkh
-	Added break support.
-
- 2001_Aug_30 gkh
-	fixed oops in write_bulk_callback.
-
- 2001_Aug_28 gkh
-	reworked buffer logic to be like other usb-serial drivers.  Hopefully
-	removing some reported problems.
-
- 2001_Jun_06 gkh
-	finished porting to 2.4 format.
-
-
------------------------------------------------------------------------
-io_edgeport.c Change Log comments:
-
- 2003_04_03 al borchers
-  - fixed a bug (that shows up with dosemu) where the tty struct is
-    used in a callback after it has been freed
-
- 2.3 2002_03_08 greg kroah-hartman
-	- fixed bug when multiple devices were attached at the same time.
-
- 2.2 2001_11_14 greg kroah-hartman
-	- fixed bug in edge_close that kept the port from being used more
-	  than once.
-	- fixed memory leak on device removal.
-	- fixed potential double free of memory when command urb submitting
-	  failed.
-	- other small cleanups when the device is removed
-
- 2.1 2001_07_09 greg kroah-hartman
-	- added support for TIOCMBIS and TIOCMBIC.
-
-     (04/08/2001) gb
-	- Identify version on module load.
-
- 2.0 2001_03_05 greg kroah-hartman
-	- reworked entire driver to fit properly in with the other usb-serial
-	  drivers.  Occasional oopses still happen, but it's a good start.
-
- 1.2.3 (02/23/2001) greg kroah-hartman
-	- changed device table to work properly for 2.4.x final format.
-	- fixed problem with dropping data at high data rates.
-
- 1.2.2 (11/27/2000) greg kroah-hartman
-	- cleaned up more NTisms.
-	- Added device table for 2.4.0-test11
-
- 1.2.1 (11/08/2000) greg kroah-hartman
-	- Started to clean up NTisms.
-	- Fixed problem with dev field of urb for kernels >= 2.4.0-test9
-
- 1.2 (10/17/2000) David Iacovelli
- 	Remove all EPIC code and GPL source
-  Fix RELEVANT_IFLAG macro to include flow control
-  changes port configuration changes.
-  Fix redefinition of SERIAL_MAGIC
-  Change all timeout values to 5 seconds
-  Tried to fix the UHCI multiple urb submission, but failed miserably.
-  it seems to work fine with OHCI.
-  ( Greg take a look at the #if 0 at end of WriteCmdUsb() we must
-    find a way to work arount this UHCI bug )
-
- 1.1 (10/11/2000) David Iacovelli
-  Fix XON/XOFF flow control to support both IXON and IXOFF
-
- 0.9.27 (06/30/2000) David Iacovelli
-  Added transmit queue and now allocate urb for command writes.
-
- 0.9.26 (06/29/2000) David Iacovelli
-  Add support for 80251 based edgeport
-
- 0.9.25 (06/27/2000) David Iacovelli
-  Do not close the port if it has multiple opens.
-
- 0.9.24 (05/26/2000) David Iacovelli
-  Add IOCTLs to support RXTX and JAVA POS
-  and first cut at running BlackBox Demo
-
- 0.9.23 (05/24/2000) David Iacovelli
-  Add IOCTLs to support RXTX and JAVA POS
-
- 0.9.22 (05/23/2000) David Iacovelli
-  fixed bug in enumeration.  If epconfig turns on mapping by
-  path after a device is already plugged in, we now update
-  the mapping correctly
-
- 0.9.21 (05/16/2000) David Iacovelli
-  Added BlockUntilChaseResp() to also wait for txcredits
-  Updated the way we allocate and handle write URBs
-	Add debug code to dump buffers
-
- 0.9.20 (05/01/2000) David Iacovelli
-	change driver to use usb/tts/
-
- 0.9.19 (05/01/2000) David Iacovelli
-  Update code to compile if DEBUG is off
-
- 0.9.18 (04/28/2000) David Iacovelli
-  cleanup and test tty_register with devfs
-
- 0.9.17 (04/27/2000) greg kroah-hartman
- 	changed tty_register around to be like the way it
- 	was before, but now it works properly with devfs.
-
- 0.9.16 (04/26/2000) david iacovelli
-  Fixed bug in GetProductInfo()
-
- 0.9.15 (04/25/2000) david iacovelli
-	Updated enumeration
-
- 0.9.14 (04/24/2000) david iacovelli
-  Removed all config/status IOCTLS and
-  converted to using /proc/edgeport
-  still playing with devfs
-
- 0.9.13 (04/24/2000) david iacovelli
-  Removed configuration based on ttyUSB0
-  Added support for configuration using /prod/edgeport
-  first attempt at using devfs (not working yet!)
-  Added IOCTL to GetProductInfo()
-  Added support for custom baud rates
-	Add support for random port numbers
-
- 0.9.12 (04/18/2000) david iacovelli
-	added additional configuration IOCTLs
-  use ttyUSB0 for configuration
-
- 0.9.11 (04/17/2000) greg kroah-hartman
-	fixed module initialization race conditions.
-	made all urbs dynamically allocated.
-	made driver devfs compatible. now it only registers the tty device
-	when the device is actually plugged in.
-
- 0.9.10 (04/13/2000) greg kroah-hartman
-	added proc interface framework.
-
- 0.9.9 (04/13/2000) david iacovelli
-	added enumeration code and ioctls to configure the device
-
- 0.9.8 (04/12/2000) david iacovelli
-  Change interrupt read start when device is plugged in
-  and stop when device is removed
-	process interrupt reads when all ports are closed
-  (keep value of rxBytesAvail consistent with the edgeport)
-  set the USB_BULK_QUEUE flag so that we can shove a bunch
-  of urbs at once down the pipe
-
- 0.9.7 (04/10/2000) david iacovelli
- 	start to add enumeration code.
-  generate serial number for epic devices
-  add support for kdb
-
- 0.9.6 (03/30/2000) david iacovelli
-  add IOCTL to get string, manufacture, and boot descriptors
-
- 0.9.5 (03/14/2000) greg kroah-hartman
-	more error checking added to SerialOpen to try to fix UHCI open problem
-
- 0.9.4 (03/09/2000) greg kroah-hartman
-	added more error checking to handle oops when data is hanging
-	around and tty is abruptly closed.
-
- 0.9.3 (03/09/2000) david iacovelli
-	Add epic support for xon/xoff chars
-	play with performance
-
- 0.9.2 (03/08/2000) greg kroah-hartman
-	changed most "info" calls to "dbg"
-	implemented flow control properly in the termios call
-
- 0.9.1 (03/08/2000) david iacovelli
-	added EPIC support
-	enabled bootloader update
-
- 0.9 (03/08/2000) greg kroah-hartman
-	Release to IO networks.
-	Integrated changes that David made
-  made getting urbs for writing SMP safe
-
- 0.8 (03/07/2000) greg kroah-hartman
-	Release to IO networks.
-	Fixed problems that were seen in code by David.
-  Now both Edgeport/4 and Edgeport/2 works properly.
-  Changed most of the functions to use port instead of serial.
-
- 0.7 (02/27/2000) greg kroah-hartman
-	Milestone 3 release.
-	Release to IO Networks
-	ioctl for waiting on line change implemented.
-	ioctl for getting statistics implemented.
-	multiport support working.
-	lsr and msr registers are now handled properly.
-	change break now hooked up and working.
-	support for all known Edgeport devices.
-
- 0.6 (02/22/2000) greg kroah-hartman
-	Release to IO networks.
-	CHASE is implemented correctly when port is closed.
-	SerialOpen now blocks correctly until port is fully opened.
-
- 0.5 (02/20/2000) greg kroah-hartman
-	Release to IO networks.
-	Known problems:
-		modem status register changes are not sent on to the user
-		CHASE is not implemented when the port is closed.
-
- 0.4 (02/16/2000) greg kroah-hartman
-	Second cut at the CeBit demo.
-	Doesn't leak memory on every write to the port
-	Still small leaks on startup.
-	Added support for Edgeport/2 and Edgeport/8
-
- 0.3 (02/15/2000) greg kroah-hartman
-	CeBit demo release.
-	Force the line settings to 4800, 8, 1, e for the demo.
-	Warning! This version leaks memory like crazy!
-
- 0.2 (01/30/2000) greg kroah-hartman
-	Milestone 1 release.
-	Device is found by USB subsystem, enumerated, firmware is downloaded
-	and the descriptors are printed to the debug log, config is set, and
-	green light starts to blink. Open port works, and data can be sent
-	and received at the default settings of the UART. Loopback connector
-	and debug log confirms this.
-
- 0.1 (01/23/2000) greg kroah-hartman
-	Initial release to help IO Networks try to set up their test system.
-	Edgeport4 is recognized, firmware is downloaded, config is set so
-	device blinks green light every 3 sec. Port is bound, but opening,
-	closing, and sending data do not work properly.
-
-
diff --git a/drivers/usb/serial/belkin_sa.c b/drivers/usb/serial/belkin_sa.c
index d6921fa1403c..f9f29b289f2f 100644
--- a/drivers/usb/serial/belkin_sa.c
+++ b/drivers/usb/serial/belkin_sa.c
@@ -20,50 +20,7 @@
  * TODO:
  * -- Add true modem contol line query capability.  Currently we track the
  *    states reported by the interrupt and the states we request.
- * -- Add error reporting back to application for UART error conditions.
- *    Just point me at how to implement this and I'll do it. I've put the
- *    framework in, but haven't analyzed the "tty_flip" interface yet.
  * -- Add support for flush commands
- * -- Add everything that is missing :)
- *
- * 27-Nov-2001 gkh
- * 	compressed all the differnent device entries into 1.
- *
- * 30-May-2001 gkh
- *	switched from using spinlock to a semaphore, which fixes lots of
- *	problems.
- *
- * 08-Apr-2001 gb
- *	- Identify version on module load.
- *
- * 12-Mar-2001 gkh
- *	- Added support for the GoHubs GO-COM232 device which is the same as the
- *	  Peracom device.
- *
- * 06-Nov-2000 gkh
- *	- Added support for the old Belkin and Peracom devices.
- *	- Made the port able to be opened multiple times.
- *	- Added some defaults incase the line settings are things these devices
- *	  can't support.
- *
- * 18-Oct-2000 William Greathouse
- *    Released into the wild (linux-usb-devel)
- *
- * 17-Oct-2000 William Greathouse
- *    Add code to recognize firmware version and set hardware flow control
- *    appropriately.  Belkin states that firmware prior to 3.05 does not
- *    operate correctly in hardware handshake mode.  I have verified this
- *    on firmware 2.05 -- for both RTS and DTR input flow control, the control
- *    line is not reset.  The test performed by the Belkin Win* driver is
- *    to enable hardware flow control for firmware 2.06 or greater and
- *    for 1.00 or prior.  I am only enabling for 2.06 or greater.
- *
- * 12-Oct-2000 William Greathouse
- *    First cut at supporting Belkin USB Serial Adapter F5U103
- *    I did not have a copy of the original work to support this
- *    adapter, so pardon any stupid mistakes.  All of the information
- *    I am using to write this driver was acquired by using a modified
- *    UsbSnoop on Windows2000 and from examining the other USB drivers.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/serial/ch341.c b/drivers/usb/serial/ch341.c
index 6ae1c0688b5e..0e77511060c0 100644
--- a/drivers/usb/serial/ch341.c
+++ b/drivers/usb/serial/ch341.c
@@ -335,13 +335,12 @@ static int ch341_open(struct tty_struct *tty, struct usb_serial_port *port)
 		goto out;
 
 	dbg("%s - submitting interrupt urb", __func__);
-	port->interrupt_in_urb->dev = serial->dev;
 	r = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 	if (r) {
 		dev_err(&port->dev, "%s - failed submitting interrupt urb,"
 			" error %d\n", __func__, r);
 		ch341_close(port);
-		return -EPROTO;
+		goto out;
 	}
 
 	r = usb_serial_generic_open(tty, port);
diff --git a/drivers/usb/serial/cp210x.c b/drivers/usb/serial/cp210x.c
index fd67cc53545b..adfe660ed008 100644
--- a/drivers/usb/serial/cp210x.c
+++ b/drivers/usb/serial/cp210x.c
@@ -92,6 +92,7 @@ static const struct usb_device_id id_table[] = {
 	{ USB_DEVICE(0x10C4, 0x818B) }, /* AVIT Research USB to TTL */
 	{ USB_DEVICE(0x10C4, 0x819F) }, /* MJS USB Toslink Switcher */
 	{ USB_DEVICE(0x10C4, 0x81A6) }, /* ThinkOptics WavIt */
+	{ USB_DEVICE(0x10C4, 0x81A9) }, /* Multiplex RC Interface */
 	{ USB_DEVICE(0x10C4, 0x81AC) }, /* MSD Dash Hawk */
 	{ USB_DEVICE(0x10C4, 0x81AD) }, /* INSYS USB Modem */
 	{ USB_DEVICE(0x10C4, 0x81C8) }, /* Lipowsky Industrie Elektronik GmbH, Baby-JTAG */
@@ -280,7 +281,10 @@ static int cp210x_get_config(struct usb_serial_port *port, u8 request,
 		dbg("%s - Unable to send config request, "
 				"request=0x%x size=%d result=%d\n",
 				__func__, request, size, result);
-		return -EPROTO;
+		if (result > 0)
+			result = -EPROTO;
+
+		return result;
 	}
 
 	return 0;
@@ -331,7 +335,10 @@ static int cp210x_set_config(struct usb_serial_port *port, u8 request,
 		dbg("%s - Unable to send request, "
 				"request=0x%x size=%d result=%d\n",
 				__func__, request, size, result);
-		return -EPROTO;
+		if (result > 0)
+			result = -EPROTO;
+
+		return result;
 	}
 
 	return 0;
@@ -395,10 +402,11 @@ static int cp210x_open(struct tty_struct *tty, struct usb_serial_port *port)
 
 	dbg("%s - port %d", __func__, port->number);
 
-	if (cp210x_set_config_single(port, CP210X_IFC_ENABLE, UART_ENABLE)) {
-		dev_err(&port->dev, "%s - Unable to enable UART\n",
-				__func__);
-		return -EPROTO;
+	result = cp210x_set_config_single(port, CP210X_IFC_ENABLE,
+								UART_ENABLE);
+	if (result) {
+		dev_err(&port->dev, "%s - Unable to enable UART\n", __func__);
+		return result;
 	}
 
 	result = usb_serial_generic_open(tty, port);
@@ -520,18 +528,13 @@ static void cp210x_get_termios_port(struct usb_serial_port *port,
 		cflag |= PARENB;
 		break;
 	case BITS_PARITY_MARK:
-		dbg("%s - parity = MARK (not supported, disabling parity)",
-				__func__);
-		cflag &= ~PARENB;
-		bits &= ~BITS_PARITY_MASK;
-		cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2);
+		dbg("%s - parity = MARK", __func__);
+		cflag |= (PARENB|PARODD|CMSPAR);
 		break;
 	case BITS_PARITY_SPACE:
-		dbg("%s - parity = SPACE (not supported, disabling parity)",
-				__func__);
-		cflag &= ~PARENB;
-		bits &= ~BITS_PARITY_MASK;
-		cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2);
+		dbg("%s - parity = SPACE", __func__);
+		cflag &= ~PARODD;
+		cflag |= (PARENB|CMSPAR);
 		break;
 	default:
 		dbg("%s - Unknown parity mode, disabling parity", __func__);
@@ -588,7 +591,6 @@ static void cp210x_set_termios(struct tty_struct *tty,
 	if (!tty)
 		return;
 
-	tty->termios->c_cflag &= ~CMSPAR;
 	cflag = tty->termios->c_cflag;
 	old_cflag = old_termios->c_cflag;
 	baud = cp210x_quantise_baudrate(tty_get_baud_rate(tty));
@@ -643,16 +645,27 @@ static void cp210x_set_termios(struct tty_struct *tty,
 					"not supported by device\n");
 	}
 
-	if ((cflag & (PARENB|PARODD)) != (old_cflag & (PARENB|PARODD))) {
+	if ((cflag     & (PARENB|PARODD|CMSPAR)) !=
+	    (old_cflag & (PARENB|PARODD|CMSPAR))) {
 		cp210x_get_config(port, CP210X_GET_LINE_CTL, &bits, 2);
 		bits &= ~BITS_PARITY_MASK;
 		if (cflag & PARENB) {
-			if (cflag & PARODD) {
-				bits |= BITS_PARITY_ODD;
-				dbg("%s - parity = ODD", __func__);
+			if (cflag & CMSPAR) {
+			    if (cflag & PARODD) {
+				    bits |= BITS_PARITY_MARK;
+				    dbg("%s - parity = MARK", __func__);
+			    } else {
+				    bits |= BITS_PARITY_SPACE;
+				    dbg("%s - parity = SPACE", __func__);
+			    }
 			} else {
-				bits |= BITS_PARITY_EVEN;
-				dbg("%s - parity = EVEN", __func__);
+			    if (cflag & PARODD) {
+				    bits |= BITS_PARITY_ODD;
+				    dbg("%s - parity = ODD", __func__);
+			    } else {
+				    bits |= BITS_PARITY_EVEN;
+				    dbg("%s - parity = EVEN", __func__);
+			    }
 			}
 		}
 		if (cp210x_set_config(port, CP210X_SET_LINE_CTL, &bits, 2))
diff --git a/drivers/usb/serial/cyberjack.c b/drivers/usb/serial/cyberjack.c
index f744ab7a3b19..98bf83349838 100644
--- a/drivers/usb/serial/cyberjack.c
+++ b/drivers/usb/serial/cyberjack.c
@@ -138,7 +138,6 @@ static int cyberjack_startup(struct usb_serial *serial)
 
 	for (i = 0; i < serial->num_ports; ++i) {
 		int result;
-		serial->port[i]->interrupt_in_urb->dev = serial->dev;
 		result = usb_submit_urb(serial->port[i]->interrupt_in_urb,
 					GFP_KERNEL);
 		if (result)
@@ -208,7 +207,6 @@ static void cyberjack_close(struct usb_serial_port *port)
 static int cyberjack_write(struct tty_struct *tty,
 	struct usb_serial_port *port, const unsigned char *buf, int count)
 {
-	struct usb_serial *serial = port->serial;
 	struct cyberjack_private *priv = usb_get_serial_port_data(port);
 	unsigned long flags;
 	int result;
@@ -221,22 +219,18 @@ static int cyberjack_write(struct tty_struct *tty,
 		return 0;
 	}
 
-	spin_lock_bh(&port->lock);
-	if (port->write_urb_busy) {
-		spin_unlock_bh(&port->lock);
+	if (!test_and_clear_bit(0, &port->write_urbs_free)) {
 		dbg("%s - already writing", __func__);
 		return 0;
 	}
-	port->write_urb_busy = 1;
-	spin_unlock_bh(&port->lock);
 
 	spin_lock_irqsave(&priv->lock, flags);
 
 	if (count+priv->wrfilled > sizeof(priv->wrbuf)) {
 		/* To much data for buffer. Reset buffer. */
 		priv->wrfilled = 0;
-		port->write_urb_busy = 0;
 		spin_unlock_irqrestore(&priv->lock, flags);
+		set_bit(0, &port->write_urbs_free);
 		return 0;
 	}
 
@@ -265,13 +259,7 @@ static int cyberjack_write(struct tty_struct *tty,
 		priv->wrsent = length;
 
 		/* set up our urb */
-		usb_fill_bulk_urb(port->write_urb, serial->dev,
-			      usb_sndbulkpipe(serial->dev, port->bulk_out_endpointAddress),
-			      port->write_urb->transfer_buffer, length,
-			      ((serial->type->write_bulk_callback) ?
-			       serial->type->write_bulk_callback :
-			       cyberjack_write_bulk_callback),
-			      port);
+		port->write_urb->transfer_buffer_length = length;
 
 		/* send the data out the bulk port */
 		result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
@@ -283,7 +271,7 @@ static int cyberjack_write(struct tty_struct *tty,
 			priv->wrfilled = 0;
 			priv->wrsent = 0;
 			spin_unlock_irqrestore(&priv->lock, flags);
-			port->write_urb_busy = 0;
+			set_bit(0, &port->write_urbs_free);
 			return 0;
 		}
 
@@ -351,7 +339,6 @@ static void cyberjack_read_int_callback(struct urb *urb)
 		spin_unlock(&priv->lock);
 
 		if (!old_rdtodo) {
-			port->read_urb->dev = port->serial->dev;
 			result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
 			if (result)
 				dev_err(&port->dev, "%s - failed resubmitting "
@@ -362,7 +349,6 @@ static void cyberjack_read_int_callback(struct urb *urb)
 	}
 
 resubmit:
-	port->interrupt_in_urb->dev = port->serial->dev;
 	result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
 	if (result)
 		dev_err(&port->dev, "usb_submit_urb(read int) failed\n");
@@ -415,7 +401,6 @@ static void cyberjack_read_bulk_callback(struct urb *urb)
 
 	/* Continue to read if we have still urbs to do. */
 	if (todo /* || (urb->actual_length==port->bulk_in_endpointAddress)*/) {
-		port->read_urb->dev = port->serial->dev;
 		result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
 		if (result)
 			dev_err(&port->dev, "%s - failed resubmitting read "
@@ -432,7 +417,7 @@ static void cyberjack_write_bulk_callback(struct urb *urb)
 
 	dbg("%s - port %d", __func__, port->number);
 
-	port->write_urb_busy = 0;
+	set_bit(0, &port->write_urbs_free);
 	if (status) {
 		dbg("%s - nonzero write bulk status received: %d",
 		    __func__, status);
@@ -455,13 +440,7 @@ static void cyberjack_write_bulk_callback(struct urb *urb)
 		priv->wrsent += length;
 
 		/* set up our urb */
-		usb_fill_bulk_urb(port->write_urb, port->serial->dev,
-			      usb_sndbulkpipe(port->serial->dev, port->bulk_out_endpointAddress),
-			      port->write_urb->transfer_buffer, length,
-			      ((port->serial->type->write_bulk_callback) ?
-			       port->serial->type->write_bulk_callback :
-			       cyberjack_write_bulk_callback),
-			      port);
+		port->write_urb->transfer_buffer_length = length;
 
 		/* send the data out the bulk port */
 		result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c
index d9906eb9d16a..07680d6b792b 100644
--- a/drivers/usb/serial/cypress_m8.c
+++ b/drivers/usb/serial/cypress_m8.c
@@ -16,32 +16,6 @@
  *
  * See http://geocities.com/i0xox0i for information on this driver and the
  * earthmate usb device.
- *
- *  Lonnie Mendez <dignome@gmail.com>
- *  4-29-2005
- *	Fixed problem where setting or retreiving the serial config would fail
- *	with EPIPE.  Removed CRTS toggling so the driver behaves more like
- *	other usbserial adapters.  Issued new interval of 1ms instead of the
- *	default 10ms.  As a result, transfer speed has been substantially
- *	increased from avg. 850bps to avg. 3300bps.  initial termios has also
- *	been modified.  Cleaned up code and formatting issues so it is more
- *	readable.  Replaced the C++ style comments.
- *
- *  Lonnie Mendez <dignome@gmail.com>
- *  12-15-2004
- *	Incorporated write buffering from pl2303 driver.  Fixed bug with line
- *	handling so both lines are raised in cypress_open. (was dropping rts)
- *      Various code cleanups made as well along with other misc bug fixes.
- *
- *  Lonnie Mendez <dignome@gmail.com>
- *  04-10-2004
- *	Driver modified to support dynamic line settings.  Various improvements
- *      and features.
- *
- *  Neil Whelchel
- *  10-2003
- *	Driver first released.
- *
  */
 
 /* Thanks to Neil Whelchel for writing the first cypress m8 implementation
@@ -1162,8 +1136,6 @@ static void cypress_unthrottle(struct tty_struct *tty)
 		return;
 
 	if (actually_throttled) {
-		port->interrupt_in_urb->dev = port->serial->dev;
-
 		result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 		if (result) {
 			dev_err(&port->dev, "%s - failed submitting read urb, "
@@ -1352,7 +1324,6 @@ static void cypress_write_int_callback(struct urb *urb)
 		dbg("%s - nonzero write bulk status received: %d",
 			__func__, status);
 		port->interrupt_out_urb->transfer_buffer_length = 1;
-		port->interrupt_out_urb->dev = port->serial->dev;
 		result = usb_submit_urb(port->interrupt_out_urb, GFP_ATOMIC);
 		if (!result)
 			return;
diff --git a/drivers/usb/serial/digi_acceleport.c b/drivers/usb/serial/digi_acceleport.c
index e92cbefc0f88..6d26a77d0f2a 100644
--- a/drivers/usb/serial/digi_acceleport.c
+++ b/drivers/usb/serial/digi_acceleport.c
@@ -13,222 +13,6 @@
 *
 *  Peter Berger (pberger@brimson.com)
 *  Al Borchers (borchers@steinerpoint.com)
-* 
-* (12/03/2001) gkh
-*	switched to using port->port.count instead of private version.
-*	Removed port->active
-*
-* (04/08/2001) gb
-*	Identify version on module load.
-*
-* (11/01/2000) Adam J. Richter
-*	usb_device_id table support
-* 
-* (11/01/2000) pberger and borchers
-*    -- Turned off the USB_DISABLE_SPD flag for write bulk urbs--it caused
-*       USB 4 ports to hang on startup.
-*    -- Serialized access to write urbs by adding the dp_write_urb_in_use
-*       flag; otherwise, the driver caused SMP system hangs.  Watching the
-*       urb status is not sufficient.
-*
-* (10/05/2000) gkh
-*    -- Fixed bug with urb->dev not being set properly, now that the usb
-*	core needs it.
-* 
-*  (8/8/2000) pberger and borchers
-*    -- Fixed close so that 
-*       - it can timeout while waiting for transmit idle, if needed;
-*       - it ignores interrupts when flushing the port, turning
-*         of modem signalling, and so on;
-*       - it waits for the flush to really complete before returning.
-*    -- Read_bulk_callback and write_bulk_callback check for a closed
-*       port before using the tty struct or writing to the port.
-*    -- The two changes above fix the oops caused by interrupted closes.
-*    -- Added interruptible args to write_oob_command and set_modem_signals
-*       and added a timeout arg to transmit_idle; needed for fixes to
-*       close.
-*    -- Added code for rx_throttle and rx_unthrottle so that input flow
-*       control works.
-*    -- Added code to set overrun, parity, framing, and break errors
-*       (untested).
-*    -- Set USB_DISABLE_SPD flag for write bulk urbs, so no 0 length
-*       bulk writes are done.  These hung the Digi USB device.  The
-*       0 length bulk writes were a new feature of usb-uhci added in
-*       the 2.4.0-test6 kernels.
-*    -- Fixed mod inc race in open; do mod inc before sleeping to wait
-*       for a close to finish.
-*
-*  (7/31/2000) pberger
-*    -- Fixed bugs with hardware handshaking:
-*       - Added code to set/clear tty->hw_stopped in digi_read_oob_callback()
-*         and digi_set_termios()
-*    -- Added code in digi_set_termios() to
-*       - add conditional in code handling transition from B0 to only
-*         set RTS if RTS/CTS flow control is either not in use or if
-*         the port is not currently throttled.
-*       - handle turning off CRTSCTS.
-*
-*  (7/30/2000) borchers
-*    -- Added support for more than one Digi USB device by moving
-*       globals to a private structure in the pointed to from the
-*       usb_serial structure.
-*    -- Moved the modem change and transmit idle wait queues into
-*       the port private structure, so each port has its own queue
-*       rather than sharing global queues.
-*    -- Added support for break signals.
-*
-*  (7/25/2000) pberger
-*    -- Added USB-2 support.  Note: the USB-2 supports 3 devices: two
-*       serial and a parallel port.  The parallel port is implemented
-*       as a serial-to-parallel converter.  That is, the driver actually
-*       presents all three USB-2 interfaces as serial ports, but the third
-*       one physically connects to a parallel device.  Thus, for example,
-*       one could plug a parallel printer into the USB-2's third port,
-*       but from the kernel's (and userland's) point of view what's
-*       actually out there is a serial device.
-*
-*  (7/15/2000) borchers
-*    -- Fixed race in open when a close is in progress.
-*    -- Keep count of opens and dec the module use count for each
-*       outstanding open when shutdown is called (on disconnect).
-*    -- Fixed sanity checks in read_bulk_callback and write_bulk_callback
-*       so pointers are checked before use.
-*    -- Split read bulk callback into in band and out of band
-*       callbacks, and no longer restart read chains if there is
-*       a status error or a sanity error.  This fixed the seg
-*       faults and other errors we used to get on disconnect.
-*    -- Port->active is once again a flag as usb-serial intended it
-*       to be, not a count.  Since it was only a char it would
-*       have been limited to 256 simultaneous opens.  Now the open
-*       count is kept in the port private structure in dp_open_count.
-*    -- Added code for modularization of the digi_acceleport driver.
-*
-*  (6/27/2000) pberger and borchers
-*    -- Zeroed out sync field in the wakeup_task before first use;
-*       otherwise the uninitialized value might prevent the task from
-*       being scheduled.
-*    -- Initialized ret value to 0 in write_bulk_callback, otherwise
-*       the uninitialized value could cause a spurious debugging message.
-*
-*  (6/22/2000) pberger and borchers
-*    -- Made cond_wait_... inline--apparently on SPARC the flags arg
-*       to spin_lock_irqsave cannot be passed to another function
-*       to call spin_unlock_irqrestore.  Thanks to Pauline Middelink.
-*    -- In digi_set_modem_signals the inner nested spin locks use just
-*       spin_lock() rather than spin_lock_irqsave().  The old code
-*       mistakenly left interrupts off.  Thanks to Pauline Middelink.
-*    -- copy_from_user (which can sleep) is no longer called while a
-*       spinlock is held.  We copy to a local buffer before getting
-*       the spinlock--don't like the extra copy but the code is simpler.
-*    -- Printk and dbg are no longer called while a spin lock is held.
-*
-*  (6/4/2000) pberger and borchers
-*    -- Replaced separate calls to spin_unlock_irqrestore and
-*       interruptible_sleep_on_timeout with a new function
-*       cond_wait_interruptible_timeout_irqrestore.  This eliminates
-*       the race condition where the wake up could happen after
-*       the unlock and before the sleep.
-*    -- Close now waits for output to drain.
-*    -- Open waits until any close in progress is finished.
-*    -- All out of band responses are now processed, not just the
-*       first in a USB packet.
-*    -- Fixed a bug that prevented the driver from working when the
-*       first Digi port was not the first USB serial port--the driver
-*       was mistakenly using the external USB serial port number to
-*       try to index into its internal ports.
-*    -- Fixed an SMP bug -- write_bulk_callback is called directly from
-*       an interrupt, so spin_lock_irqsave/spin_unlock_irqrestore are
-*       needed for locks outside write_bulk_callback that are also
-*       acquired by write_bulk_callback to prevent deadlocks.
-*    -- Fixed support for select() by making digi_chars_in_buffer()
-*       return 256 when -EINPROGRESS is set, as the line discipline
-*       code in n_tty.c expects.
-*    -- Fixed an include file ordering problem that prevented debugging
-*       messages from working.
-*    -- Fixed an intermittent timeout problem that caused writes to
-*       sometimes get stuck on some machines on some kernels.  It turns
-*       out in these circumstances write_chan() (in n_tty.c) was
-*       asleep waiting for our wakeup call.  Even though we call
-*       wake_up_interruptible() in digi_write_bulk_callback(), there is
-*       a race condition that could cause the wakeup to fail: if our
-*       wake_up_interruptible() call occurs between the time that our
-*       driver write routine finishes and write_chan() sets current->state
-*       to TASK_INTERRUPTIBLE, the effect of our wakeup setting the state
-*       to TASK_RUNNING will be lost and write_chan's subsequent call to
-*       schedule() will never return (unless it catches a signal).
-*       This race condition occurs because write_bulk_callback() (and thus
-*       the wakeup) are called asynchronously from an interrupt, rather than
-*       from the scheduler.  We can avoid the race by calling the wakeup
-*       from the scheduler queue and that's our fix:  Now, at the end of
-*       write_bulk_callback() we queue up a wakeup call on the scheduler
-*       task queue.  We still also invoke the wakeup directly since that
-*       squeezes a bit more performance out of the driver, and any lost
-*       race conditions will get cleaned up at the next scheduler run.
-*
-*       NOTE:  The problem also goes away if you comment out
-*       the two code lines in write_chan() where current->state
-*       is set to TASK_RUNNING just before calling driver.write() and to
-*       TASK_INTERRUPTIBLE immediately afterwards.  This is why the
-*       problem did not show up with the 2.2 kernels -- they do not
-*       include that code.
-*
-*  (5/16/2000) pberger and borchers
-*    -- Added timeouts to sleeps, to defend against lost wake ups.
-*    -- Handle transition to/from B0 baud rate in digi_set_termios.
-*
-*  (5/13/2000) pberger and borchers
-*    -- All commands now sent on out of band port, using
-*       digi_write_oob_command.
-*    -- Get modem control signals whenever they change, support TIOCMGET/
-*       SET/BIS/BIC ioctls.
-*    -- digi_set_termios now supports parity, word size, stop bits, and
-*       receive enable.
-*    -- Cleaned up open and close, use digi_set_termios and
-*       digi_write_oob_command to set port parameters.
-*    -- Added digi_startup_device to start read chains on all ports.
-*    -- Write buffer is only used when count==1, to be sure put_char can
-*       write a char (unless the buffer is full).
-*
-*  (5/10/2000) pberger and borchers
-*    -- Added MOD_INC_USE_COUNT/MOD_DEC_USE_COUNT calls on open/close.
-*    -- Fixed problem where the first incoming character is lost on
-*       port opens after the first close on that port.  Now we keep
-*       the read_urb chain open until shutdown.
-*    -- Added more port conditioning calls in digi_open and digi_close.
-*    -- Convert port->active to a use count so that we can deal with multiple
-*       opens and closes properly.
-*    -- Fixed some problems with the locking code.
-*
-*  (5/3/2000) pberger and borchers
-*    -- First alpha version of the driver--many known limitations and bugs.
-*
-*
-*  Locking and SMP
-*
-*  - Each port, including the out-of-band port, has a lock used to
-*    serialize all access to the port's private structure.
-*  - The port lock is also used to serialize all writes and access to
-*    the port's URB.
-*  - The port lock is also used for the port write_wait condition
-*    variable.  Holding the port lock will prevent a wake up on the
-*    port's write_wait; this can be used with cond_wait_... to be sure
-*    the wake up is not lost in a race when dropping the lock and
-*    sleeping waiting for the wakeup.
-*  - digi_write() does not sleep, since it is sometimes called on
-*    interrupt time.
-*  - digi_write_bulk_callback() and digi_read_bulk_callback() are
-*    called directly from interrupts.  Hence spin_lock_irqsave()
-*    and spin_unlock_irqrestore() are used in the rest of the code
-*    for any locks they acquire.
-*  - digi_write_bulk_callback() gets the port lock before waking up
-*    processes sleeping on the port write_wait.  It also schedules
-*    wake ups so they happen from the scheduler, because the tty
-*    system can miss wake ups from interrupts.
-*  - All sleeps use a timeout of DIGI_RETRY_TIMEOUT before looping to
-*    recheck the condition they are sleeping on.  This is defensive,
-*    in case a wake up is lost.
-*  - Following Documentation/DocBook/kernel-locking.tmpl no spin locks
-*    are held when calling copy_to/from_user or printk.
 */
 
 #include <linux/kernel.h>
@@ -654,7 +438,6 @@ static int digi_write_oob_command(struct usb_serial_port *port,
 			len &= ~3;
 		memcpy(oob_port->write_urb->transfer_buffer, buf, len);
 		oob_port->write_urb->transfer_buffer_length = len;
-		oob_port->write_urb->dev = port->serial->dev;
 		ret = usb_submit_urb(oob_port->write_urb, GFP_ATOMIC);
 		if (ret == 0) {
 			oob_priv->dp_write_urb_in_use = 1;
@@ -732,7 +515,6 @@ static int digi_write_inb_command(struct usb_serial_port *port,
 			memcpy(data, buf, len);
 			port->write_urb->transfer_buffer_length = len;
 		}
-		port->write_urb->dev = port->serial->dev;
 
 		ret = usb_submit_urb(port->write_urb, GFP_ATOMIC);
 		if (ret == 0) {
@@ -803,7 +585,6 @@ static int digi_set_modem_signals(struct usb_serial_port *port,
 	data[7] = 0;
 
 	oob_port->write_urb->transfer_buffer_length = 8;
-	oob_port->write_urb->dev = port->serial->dev;
 
 	ret = usb_submit_urb(oob_port->write_urb, GFP_ATOMIC);
 	if (ret == 0) {
@@ -899,10 +680,8 @@ static void digi_rx_unthrottle(struct tty_struct *tty)
 	spin_lock_irqsave(&priv->dp_port_lock, flags);
 
 	/* restart read chain */
-	if (priv->dp_throttle_restart) {
-		port->read_urb->dev = port->serial->dev;
+	if (priv->dp_throttle_restart)
 		ret = usb_submit_urb(port->read_urb, GFP_ATOMIC);
-	}
 
 	/* turn throttle off */
 	priv->dp_throttled = 0;
@@ -1195,7 +974,6 @@ static int digi_write(struct tty_struct *tty, struct usb_serial_port *port,
 	}
 
 	port->write_urb->transfer_buffer_length = data_len+2;
-	port->write_urb->dev = port->serial->dev;
 
 	*data++ = DIGI_CMD_SEND_DATA;
 	*data++ = data_len;
@@ -1271,7 +1049,6 @@ static void digi_write_bulk_callback(struct urb *urb)
 			= (unsigned char)priv->dp_out_buf_len;
 		port->write_urb->transfer_buffer_length =
 						priv->dp_out_buf_len + 2;
-		port->write_urb->dev = serial->dev;
 		memcpy(port->write_urb->transfer_buffer + 2, priv->dp_out_buf,
 			priv->dp_out_buf_len);
 		ret = usb_submit_urb(port->write_urb, GFP_ATOMIC);
@@ -1473,7 +1250,6 @@ static int digi_startup_device(struct usb_serial *serial)
 	/* set USB_DISABLE_SPD flag for write bulk urbs */
 	for (i = 0; i < serial->type->num_ports + 1; i++) {
 		port = serial->port[i];
-		port->write_urb->dev = port->serial->dev;
 		ret = usb_submit_urb(port->read_urb, GFP_KERNEL);
 		if (ret != 0) {
 			dev_err(&port->dev,
@@ -1616,7 +1392,6 @@ static void digi_read_bulk_callback(struct urb *urb)
 	}
 
 	/* continue read */
-	urb->dev = port->serial->dev;
 	ret = usb_submit_urb(urb, GFP_ATOMIC);
 	if (ret != 0 && ret != -EPERM) {
 		dev_err(&port->dev,
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index ff3db5d056a5..c290df97108e 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -2105,6 +2105,9 @@ static void ftdi_set_termios(struct tty_struct *tty,
 
 	cflag = termios->c_cflag;
 
+	if (old_termios == 0)
+		goto no_skip;
+
 	if (old_termios->c_cflag == termios->c_cflag
 	    && old_termios->c_ispeed == termios->c_ispeed
 	    && old_termios->c_ospeed == termios->c_ospeed)
@@ -2118,6 +2121,7 @@ static void ftdi_set_termios(struct tty_struct *tty,
 	    (termios->c_cflag & (CSIZE|PARODD|PARENB|CMSPAR|CSTOPB)))
 		goto no_data_parity_stop_changes;
 
+no_skip:
 	/* Set number of data bits, parity, stop bits */
 
 	urb_value = 0;
diff --git a/drivers/usb/serial/garmin_gps.c b/drivers/usb/serial/garmin_gps.c
index 1a49ca9c8ea5..bf12565f8e87 100644
--- a/drivers/usb/serial/garmin_gps.c
+++ b/drivers/usb/serial/garmin_gps.c
@@ -901,7 +901,6 @@ static int garmin_init_session(struct usb_serial_port *port)
 		usb_kill_urb(port->interrupt_in_urb);
 
 		dbg("%s - adding interrupt input", __func__);
-		port->interrupt_in_urb->dev = serial->dev;
 		status = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 		if (status)
 			dev_err(&serial->dev->dev,
@@ -1277,7 +1276,6 @@ static void garmin_read_int_callback(struct urb *urb)
 	unsigned long flags;
 	int retval;
 	struct usb_serial_port *port = urb->context;
-	struct usb_serial *serial = port->serial;
 	struct garmin_data *garmin_data_p = usb_get_serial_port_data(port);
 	unsigned char *data = urb->transfer_buffer;
 	int status = urb->status;
@@ -1311,12 +1309,6 @@ static void garmin_read_int_callback(struct urb *urb)
 		if (0 == (garmin_data_p->flags & FLAGS_BULK_IN_ACTIVE)) {
 
 			/* bulk data available */
-			usb_fill_bulk_urb(port->read_urb, serial->dev,
-					usb_rcvbulkpipe(serial->dev,
-						port->bulk_in_endpointAddress),
-					port->read_urb->transfer_buffer,
-					port->read_urb->transfer_buffer_length,
-					garmin_read_bulk_callback, port);
 			retval = usb_submit_urb(port->read_urb, GFP_ATOMIC);
 			if (retval) {
 				dev_err(&port->dev,
@@ -1353,7 +1345,6 @@ static void garmin_read_int_callback(struct urb *urb)
 
 	garmin_read_process(garmin_data_p, data, urb->actual_length, 0);
 
-	port->interrupt_in_urb->dev = port->serial->dev;
 	retval = usb_submit_urb(urb, GFP_ATOMIC);
 	if (retval)
 		dev_err(&urb->dev->dev,
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index e4db5ad2bc55..f7403576f99f 100644
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -1,7 +1,7 @@
 /*
  * USB Serial Converter Generic functions
  *
- * Copyright (C) 2010 Johan Hovold (jhovold@gmail.com)
+ * Copyright (C) 2010 - 2011 Johan Hovold (jhovold@gmail.com)
  * Copyright (C) 1999 - 2002 Greg Kroah-Hartman (greg@kroah.com)
  *
  *	This program is free software; you can redistribute it and/or
@@ -132,7 +132,7 @@ int usb_serial_generic_open(struct tty_struct *tty, struct usb_serial_port *port
 
 	/* if we have a bulk endpoint, start reading from it */
 	if (port->bulk_in_size)
-		result = usb_serial_generic_submit_read_urb(port, GFP_KERNEL);
+		result = usb_serial_generic_submit_read_urbs(port, GFP_KERNEL);
 
 	return result;
 }
@@ -157,8 +157,10 @@ static void generic_cleanup(struct usb_serial_port *port)
 			kfifo_reset_out(&port->write_fifo);
 			spin_unlock_irqrestore(&port->lock, flags);
 		}
-		if (port->bulk_in_size)
-			usb_kill_urb(port->read_urb);
+		if (port->bulk_in_size) {
+			for (i = 0; i < ARRAY_SIZE(port->read_urbs); ++i)
+				usb_kill_urb(port->read_urbs[i]);
+		}
 	}
 }
 
@@ -308,19 +310,52 @@ int usb_serial_generic_chars_in_buffer(struct tty_struct *tty)
 	return chars;
 }
 
-int usb_serial_generic_submit_read_urb(struct usb_serial_port *port,
+static int usb_serial_generic_submit_read_urb(struct usb_serial_port *port,
+						int index, gfp_t mem_flags)
+{
+	int res;
+
+	if (!test_and_clear_bit(index, &port->read_urbs_free))
+		return 0;
+
+	dbg("%s - port %d, urb %d\n", __func__, port->number, index);
+
+	res = usb_submit_urb(port->read_urbs[index], mem_flags);
+	if (res) {
+		if (res != -EPERM) {
+			dev_err(&port->dev,
+					"%s - usb_submit_urb failed: %d\n",
+					__func__, res);
+		}
+		set_bit(index, &port->read_urbs_free);
+		return res;
+	}
+
+	return 0;
+}
+
+int usb_serial_generic_submit_read_urbs(struct usb_serial_port *port,
 					gfp_t mem_flags)
 {
-	int result;
+	int res;
+	int i;
 
-	result = usb_submit_urb(port->read_urb, mem_flags);
-	if (result && result != -EPERM) {
-		dev_err(&port->dev, "%s - error submitting urb: %d\n",
-							__func__, result);
+	dbg("%s - port %d", __func__, port->number);
+
+	for (i = 0; i < ARRAY_SIZE(port->read_urbs); ++i) {
+		res = usb_serial_generic_submit_read_urb(port, i, mem_flags);
+		if (res)
+			goto err;
 	}
-	return result;
+
+	return 0;
+err:
+	for (; i >= 0; --i)
+		usb_kill_urb(port->read_urbs[i]);
+
+	return res;
 }
-EXPORT_SYMBOL_GPL(usb_serial_generic_submit_read_urb);
+EXPORT_SYMBOL_GPL(usb_serial_generic_submit_read_urbs);
 
 void usb_serial_generic_process_read_urb(struct urb *urb)
 {
@@ -356,14 +391,19 @@ void usb_serial_generic_read_bulk_callback(struct urb *urb)
 {
 	struct usb_serial_port *port = urb->context;
 	unsigned char *data = urb->transfer_buffer;
-	int status = urb->status;
 	unsigned long flags;
+	int i;
 
-	dbg("%s - port %d", __func__, port->number);
+	for (i = 0; i < ARRAY_SIZE(port->read_urbs); ++i) {
+		if (urb == port->read_urbs[i])
+			break;
+	}
+	set_bit(i, &port->read_urbs_free);
 
-	if (unlikely(status != 0)) {
-		dbg("%s - nonzero read bulk status received: %d",
-		    __func__, status);
+	dbg("%s - port %d, urb %d, len %d\n", __func__, port->number, i,
+							urb->actual_length);
+	if (urb->status) {
+		dbg("%s - non-zero urb status: %d\n", __func__, urb->status);
 		return;
 	}
 
@@ -376,7 +416,7 @@ void usb_serial_generic_read_bulk_callback(struct urb *urb)
 	port->throttled = port->throttle_req;
 	if (!port->throttled) {
 		spin_unlock_irqrestore(&port->lock, flags);
-		usb_serial_generic_submit_read_urb(port, GFP_ATOMIC);
+		usb_serial_generic_submit_read_urb(port, i, GFP_ATOMIC);
 	} else
 		spin_unlock_irqrestore(&port->lock, flags);
 }
@@ -443,7 +483,7 @@ void usb_serial_generic_unthrottle(struct tty_struct *tty)
 	spin_unlock_irq(&port->lock);
 
 	if (was_throttled)
-		usb_serial_generic_submit_read_urb(port, GFP_KERNEL);
+		usb_serial_generic_submit_read_urbs(port, GFP_KERNEL);
 }
 EXPORT_SYMBOL_GPL(usb_serial_generic_unthrottle);
 
@@ -509,8 +549,9 @@ int usb_serial_generic_resume(struct usb_serial *serial)
 		if (!test_bit(ASYNCB_INITIALIZED, &port->port.flags))
 			continue;
 
-		if (port->read_urb) {
-			r = usb_submit_urb(port->read_urb, GFP_NOIO);
+		if (port->bulk_in_size) {
+			r = usb_serial_generic_submit_read_urbs(port,
+								GFP_NOIO);
 			if (r < 0)
 				c++;
 		}
diff --git a/drivers/usb/serial/io_edgeport.c b/drivers/usb/serial/io_edgeport.c
index 2ee807523f53..abd2ee2b2f99 100644
--- a/drivers/usb/serial/io_edgeport.c
+++ b/drivers/usb/serial/io_edgeport.c
@@ -610,7 +610,6 @@ static void edge_interrupt_callback(struct urb *urb)
 
 					/* we have pending bytes on the
 					   bulk in pipe, send a request */
-					edge_serial->read_urb->dev = edge_serial->serial->dev;
 					result = usb_submit_urb(edge_serial->read_urb, GFP_ATOMIC);
 					if (result) {
 						dev_err(&edge_serial->serial->dev->dev, "%s - usb_submit_urb(read bulk) failed with result = %d\n", __func__, result);
@@ -711,7 +710,6 @@ static void edge_bulk_in_callback(struct urb *urb)
 	/* check to see if there's any more data for us to read */
 	if (edge_serial->rxBytesAvail > 0) {
 		dbg("%s - posting a read", __func__);
-		edge_serial->read_urb->dev = edge_serial->serial->dev;
 		retval = usb_submit_urb(edge_serial->read_urb, GFP_ATOMIC);
 		if (retval) {
 			dev_err(&urb->dev->dev,
@@ -1330,7 +1328,6 @@ static void send_more_port_data(struct edgeport_serial *edge_serial,
 	edge_port->txCredits -= count;
 	edge_port->icount.tx += count;
 
-	urb->dev = edge_serial->serial->dev;
 	status = usb_submit_urb(urb, GFP_ATOMIC);
 	if (status) {
 		/* something went wrong */
diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c
index 0aac00afb5c8..e44d375edaad 100644
--- a/drivers/usb/serial/io_ti.c
+++ b/drivers/usb/serial/io_ti.c
@@ -15,13 +15,6 @@
  * For questions or problems with this driver, contact Inside Out
  * Networks technical support, or Peter Berger <pberger@brimson.com>,
  * or Al Borchers <alborchers@steinerpoint.com>.
- *
- * Version history:
- *
- *	July 11, 2002 	Removed 4 port device structure since all TI UMP
- *			chips have only 2 ports
- *			David Iacovelli (davidi@ionetworks.com)
- *
  */
 
 #include <linux/kernel.h>
@@ -1777,12 +1770,11 @@ static void edge_bulk_in_callback(struct urb *urb)
 exit:
 	/* continue read unless stopped */
 	spin_lock(&edge_port->ep_lock);
-	if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING) {
-		urb->dev = edge_port->port->serial->dev;
+	if (edge_port->ep_read_urb_state == EDGE_READ_URB_RUNNING)
 		retval = usb_submit_urb(urb, GFP_ATOMIC);
-	} else if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPING) {
+	else if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPING)
 		edge_port->ep_read_urb_state = EDGE_READ_URB_STOPPED;
-	}
+
 	spin_unlock(&edge_port->ep_lock);
 	if (retval)
 		dev_err(&urb->dev->dev,
@@ -1959,9 +1951,7 @@ static int edge_open(struct tty_struct *tty, struct usb_serial_port *port)
 			status = -EINVAL;
 			goto release_es_lock;
 		}
-		urb->complete = edge_interrupt_callback;
 		urb->context = edge_serial;
-		urb->dev = dev;
 		status = usb_submit_urb(urb, GFP_KERNEL);
 		if (status) {
 			dev_err(&port->dev,
@@ -1987,9 +1977,7 @@ static int edge_open(struct tty_struct *tty, struct usb_serial_port *port)
 		goto unlink_int_urb;
 	}
 	edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING;
-	urb->complete = edge_bulk_in_callback;
 	urb->context = edge_port;
-	urb->dev = dev;
 	status = usb_submit_urb(urb, GFP_KERNEL);
 	if (status) {
 		dev_err(&port->dev,
@@ -2118,12 +2106,7 @@ static void edge_send(struct tty_struct *tty)
 				port->write_urb->transfer_buffer);
 
 	/* set up our urb */
-	usb_fill_bulk_urb(port->write_urb, port->serial->dev,
-			   usb_sndbulkpipe(port->serial->dev,
-					    port->bulk_out_endpointAddress),
-			   port->write_urb->transfer_buffer, count,
-			   edge_bulk_out_callback,
-			   port);
+	port->write_urb->transfer_buffer_length = count;
 
 	/* send the data out the bulk port */
 	result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
@@ -2267,9 +2250,6 @@ static int restart_read(struct edgeport_port *edge_port)
 
 	if (edge_port->ep_read_urb_state == EDGE_READ_URB_STOPPED) {
 		urb = edge_port->port->read_urb;
-		urb->complete = edge_bulk_in_callback;
-		urb->context = edge_port;
-		urb->dev = edge_port->port->serial->dev;
 		status = usb_submit_urb(urb, GFP_ATOMIC);
 	}
 	edge_port->ep_read_urb_state = EDGE_READ_URB_RUNNING;
diff --git a/drivers/usb/serial/ipaq.c b/drivers/usb/serial/ipaq.c
index 4735931b4c7b..36f5cbe90485 100644
--- a/drivers/usb/serial/ipaq.c
+++ b/drivers/usb/serial/ipaq.c
@@ -8,40 +8,6 @@
  *	it under the terms of the GNU General Public License as published by
  *	the Free Software Foundation; either version 2 of the License, or
  *	(at your option) any later version.
- *
- * (12/12/2002) ganesh
- * 	Added support for practically all devices supported by ActiveSync
- * 	on Windows. Thanks to Wes Cilldhaire <billybobjoehenrybob@hotmail.com>.
- *
- * (26/11/2002) ganesh
- * 	Added insmod options to specify product and vendor id.
- * 	Use modprobe ipaq vendor=0xfoo product=0xbar
- *
- * (26/7/2002) ganesh
- * 	Fixed up broken error handling in ipaq_open. Retry the "kickstart"
- * 	packet much harder - this drastically reduces connection failures.
- *
- * (30/4/2002) ganesh
- * 	Added support for the Casio EM500. Completely untested. Thanks
- * 	to info from Nathan <wfilardo@fuse.net>
- *
- * (19/3/2002) ganesh
- *	Don't submit urbs while holding spinlocks. Not strictly necessary
- *	in 2.5.x.
- *
- * (8/3/2002) ganesh
- * 	The ipaq sometimes emits a '\0' before the CLIENT string. At this
- * 	point of time, the ppp ldisc is not yet attached to the tty, so
- * 	n_tty echoes "^ " to the ipaq, which messes up the chat. In 2.5.6-pre2
- * 	this causes a panic because echo_char() tries to sleep in interrupt
- * 	context.
- * 	The fix is to tell the upper layers that this is a raw device so that
- * 	echoing is suppressed. Thanks to Lyle Lindholm for a detailed bug
- * 	report.
- *
- * (25/2/2002) ganesh
- * 	Added support for the HP Jornada 548 and 568. Completely untested.
- * 	Thanks to info from Heath Robinson and Arieh Davidoff.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/serial/ir-usb.c b/drivers/usb/serial/ir-usb.c
index ccbce4066d04..0c537da0d3cd 100644
--- a/drivers/usb/serial/ir-usb.c
+++ b/drivers/usb/serial/ir-usb.c
@@ -22,38 +22,6 @@
  *
  * See Documentation/usb/usb-serial.txt for more information on using this
  * driver
- *
- * 2008_Jun_02  Felipe Balbi <me@felipebalbi.com>
- *	Introduced common header to be used also in USB Gadget Framework.
- *	Still needs some other style fixes.
- *
- * 2007_Jun_21  Alan Cox <alan@lxorguk.ukuu.org.uk>
- *	Minimal cleanups for some of the driver problens and tty layer abuse.
- *	Still needs fixing to allow multiple dongles.
- *
- * 2002_Mar_07	greg kh
- *	moved some needed structures and #define values from the
- *	net/irda/irda-usb.h file into our file, as we don't want to depend on
- *	that codebase compiling correctly :)
- *
- * 2002_Jan_14  gb
- *	Added module parameter to force specific number of XBOFs.
- *	Added ir_xbof_change().
- *	Reorganized read_bulk_callback error handling.
- *	Switched from FILL_BULK_URB() to usb_fill_bulk_urb().
- *
- * 2001_Nov_08  greg kh
- *	Changed the irda_usb_find_class_desc() function based on comments and
- *	code from Martin Diehl.
- *
- * 2001_Nov_01	greg kh
- *	Added support for more IrDA USB devices.
- *	Added support for zero packet.  Added buffer override paramater, so
- *	users can transfer larger packets at once if they wish.  Both patches
- *	came from Dag Brattli <dag@obexcode.com>.
- *
- * 2001_Oct_07	greg kh
- *	initial version released.
  */
 
 #include <linux/kernel.h>
diff --git a/drivers/usb/serial/iuu_phoenix.c b/drivers/usb/serial/iuu_phoenix.c
index 6aca631a407a..64d0ffd4440b 100644
--- a/drivers/usb/serial/iuu_phoenix.c
+++ b/drivers/usb/serial/iuu_phoenix.c
@@ -1168,15 +1168,14 @@ static int iuu_open(struct tty_struct *tty, struct usb_serial_port *port)
 			  port->write_urb->transfer_buffer, 1,
 			  read_rxcmd_callback, port);
 	result = usb_submit_urb(port->write_urb, GFP_KERNEL);
-
 	if (result) {
 		dev_err(&port->dev, "%s - failed submitting read urb,"
 			" error %d\n", __func__, result);
 		iuu_close(port);
-		return -EPROTO;
 	} else {
 		dbg("%s - rxcmd OK", __func__);
 	}
+
 	return result;
 }
 
diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c
index a442352d7b61..bc8dc203e818 100644
--- a/drivers/usb/serial/keyspan.c
+++ b/drivers/usb/serial/keyspan.c
@@ -25,73 +25,6 @@
 
   Tip 'o the hat to IBM (and previously Linuxcare :) for supporting
   staff in their work on open source projects.
-
-  Change History
-
-    2003sep04	LPM (Keyspan) add support for new single port product USA19HS.
-				Improve setup message handling for all devices.
-
-    Wed Feb 19 22:00:00 PST 2003 (Jeffrey S. Laing <keyspan@jsl.com>)
-      Merged the current (1/31/03) Keyspan code with the current (2.4.21-pre4)
-      Linux source tree.  The Linux tree lacked support for the 49WLC and
-      others.  The Keyspan patches didn't work with the current kernel.
-
-    2003jan30	LPM	add support for the 49WLC and MPR
-
-    Wed Apr 25 12:00:00 PST 2002 (Keyspan)
-      Started with Hugh Blemings' code dated Jan 17, 2002.  All adapters
-      now supported (including QI and QW).  Modified port open, port
-      close, and send setup() logic to fix various data and endpoint
-      synchronization bugs and device LED status bugs.  Changed keyspan_
-      write_room() to accurately return transmit buffer availability.
-      Changed forwardingLength from 1 to 16 for all adapters.
-
-    Fri Oct 12 16:45:00 EST 2001
-      Preliminary USA-19QI and USA-28 support (both test OK for me, YMMV)
-
-    Wed Apr 25 12:00:00 PST 2002 (Keyspan)
-      Started with Hugh Blemings' code dated Jan 17, 2002.  All adapters
-      now supported (including QI and QW).  Modified port open, port
-      close, and send setup() logic to fix various data and endpoint
-      synchronization bugs and device LED status bugs.  Changed keyspan_
-      write_room() to accurately return transmit buffer availability.
-      Changed forwardingLength from 1 to 16 for all adapters.
-
-    Fri Oct 12 16:45:00 EST 2001
-      Preliminary USA-19QI and USA-28 support (both test OK for me, YMMV)
-
-    Mon Oct  8 14:29:00 EST 2001 hugh
-      Fixed bug that prevented mulitport devices operating correctly
-      if they weren't the first unit attached.
-
-    Sat Oct  6 12:31:21 EST 2001 hugh
-      Added support for USA-28XA and -28XB, misc cleanups, break support
-      for usa26 based models thanks to David Gibson.
-
-    Thu May 31 11:56:42 PDT 2001 gkh
-      switched from using spinlock to a semaphore
-
-    (04/08/2001) gb
-	Identify version on module load.
-
-    (11/01/2000) Adam J. Richter
-	usb_device_id table support.
-
-    Tue Oct 10 23:15:33 EST 2000 Hugh
-      Merged Paul's changes with my USA-49W mods.  Work in progress
-      still...
-
-    Wed Jul 19 14:00:42 EST 2000 gkh
-      Added module_init and module_exit functions to handle the fact that
-      this driver is a loadable module now.
-
-    Tue Jul 18 16:14:52 EST 2000 Hugh
-      Basic character input/output for USA-19 now mostly works,
-      fixed at 9600 baud for the moment.
-
-    Sat Jul  8 11:11:48 EST 2000 Hugh
-      First public release - nothing works except the firmware upload.
-      Tested on PPC and x86 architectures, seems to behave...
 */
 
 
@@ -397,7 +330,6 @@ static int keyspan_write(struct tty_struct *tty,
 		/* send the data out the bulk port */
 		this_urb->transfer_buffer_length = todo + dataOffset;
 
-		this_urb->dev = port->serial->dev;
 		err = usb_submit_urb(this_urb, GFP_ATOMIC);
 		if (err != 0)
 			dbg("usb_submit_urb(write bulk) failed (%d)", err);
@@ -463,7 +395,6 @@ static void	usa26_indat_callback(struct urb *urb)
 	tty_kref_put(tty);
 
 	/* Resubmit urb so we continue receiving */
-	urb->dev = port->serial->dev;
 	err = usb_submit_urb(urb, GFP_ATOMIC);
 	if (err != 0)
 		dbg("%s - resubmit read urb failed. (%d)", __func__, err);
@@ -559,7 +490,6 @@ static void	usa26_instat_callback(struct urb *urb)
 	}
 
 	/* Resubmit urb so we continue receiving */
-	urb->dev = serial->dev;
 	err = usb_submit_urb(urb, GFP_ATOMIC);
 	if (err != 0)
 		dbg("%s - resubmit read urb failed. (%d)", __func__, err);
@@ -609,7 +539,6 @@ static void usa28_indat_callback(struct urb *urb)
 		tty_kref_put(tty);
 
 		/* Resubmit urb so we continue receiving */
-		urb->dev = port->serial->dev;
 		err = usb_submit_urb(urb, GFP_ATOMIC);
 		if (err != 0)
 			dbg("%s - resubmit read urb failed. (%d)",
@@ -694,7 +623,6 @@ static void	usa28_instat_callback(struct urb *urb)
 	}
 
 		/* Resubmit urb so we continue receiving */
-	urb->dev = serial->dev;
 	err = usb_submit_urb(urb, GFP_ATOMIC);
 	if (err != 0)
 		dbg("%s - resubmit read urb failed. (%d)", __func__, err);
@@ -789,8 +717,6 @@ static void	usa49_instat_callback(struct urb *urb)
 	}
 
 	/* Resubmit urb so we continue receiving */
-	urb->dev = serial->dev;
-
 	err = usb_submit_urb(urb, GFP_ATOMIC);
 	if (err != 0)
 		dbg("%s - resubmit read urb failed. (%d)", __func__, err);
@@ -848,7 +774,6 @@ static void	usa49_indat_callback(struct urb *urb)
 	tty_kref_put(tty);
 
 	/* Resubmit urb so we continue receiving */
-	urb->dev = port->serial->dev;
 	err = usb_submit_urb(urb, GFP_ATOMIC);
 	if (err != 0)
 		dbg("%s - resubmit read urb failed. (%d)", __func__, err);
@@ -919,8 +844,6 @@ static void usa49wg_indat_callback(struct urb *urb)
 	}
 
 	/* Resubmit urb so we continue receiving */
-	urb->dev = serial->dev;
-
 	err = usb_submit_urb(urb, GFP_ATOMIC);
 	if (err != 0)
 		dbg("%s - resubmit read urb failed. (%d)", __func__, err);
@@ -996,7 +919,6 @@ static void usa90_indat_callback(struct urb *urb)
 	}
 
 	/* Resubmit urb so we continue receiving */
-	urb->dev = port->serial->dev;
 	err = usb_submit_urb(urb, GFP_ATOMIC);
 	if (err != 0)
 		dbg("%s - resubmit read urb failed. (%d)", __func__, err);
@@ -1047,7 +969,6 @@ static void	usa90_instat_callback(struct urb *urb)
 	}
 
 	/* Resubmit urb so we continue receiving */
-	urb->dev = serial->dev;
 	err = usb_submit_urb(urb, GFP_ATOMIC);
 	if (err != 0)
 		dbg("%s - resubmit read urb failed. (%d)", __func__, err);
@@ -1123,7 +1044,6 @@ static void	usa67_instat_callback(struct urb *urb)
 	}
 
 	/* Resubmit urb so we continue receiving */
-	urb->dev = serial->dev;
 	err = usb_submit_urb(urb, GFP_ATOMIC);
 	if (err != 0)
 		dbg("%s - resubmit read urb failed. (%d)", __func__, err);
@@ -1223,7 +1143,6 @@ static int keyspan_open(struct tty_struct *tty, struct usb_serial_port *port)
 		urb = p_priv->in_urbs[i];
 		if (urb == NULL)
 			continue;
-		urb->dev = serial->dev;
 
 		/* make sure endpoint data toggle is synchronized
 		   with the device */
@@ -1239,7 +1158,6 @@ static int keyspan_open(struct tty_struct *tty, struct usb_serial_port *port)
 		urb = p_priv->out_urbs[i];
 		if (urb == NULL)
 			continue;
-		urb->dev = serial->dev;
 		/* usb_settoggle(urb->dev, usb_pipeendpoint(urb->pipe),
 						usb_pipeout(urb->pipe), 0); */
 	}
@@ -1956,7 +1874,6 @@ static int keyspan_usa26_send_setup(struct usb_serial *serial,
 	/* send the data out the device on control endpoint */
 	this_urb->transfer_buffer_length = sizeof(msg);
 
-	this_urb->dev = serial->dev;
 	err = usb_submit_urb(this_urb, GFP_ATOMIC);
 	if (err != 0)
 		dbg("%s - usb_submit_urb(setup) failed (%d)", __func__, err);
@@ -2084,7 +2001,6 @@ static int keyspan_usa28_send_setup(struct usb_serial *serial,
 	/* send the data out the device on control endpoint */
 	this_urb->transfer_buffer_length = sizeof(msg);
 
-	this_urb->dev = serial->dev;
 	err = usb_submit_urb(this_urb, GFP_ATOMIC);
 	if (err != 0)
 		dbg("%s - usb_submit_urb(setup) failed", __func__);
@@ -2271,8 +2187,6 @@ static int keyspan_usa49_send_setup(struct usb_serial *serial,
 
 		/* send the data out the device on control endpoint */
 		this_urb->transfer_buffer_length = sizeof(msg);
-
-		this_urb->dev = serial->dev;
 	}
 	err = usb_submit_urb(this_urb, GFP_ATOMIC);
 	if (err != 0)
@@ -2415,7 +2329,6 @@ static int keyspan_usa90_send_setup(struct usb_serial *serial,
 	/* send the data out the device on control endpoint */
 	this_urb->transfer_buffer_length = sizeof(msg);
 
-	this_urb->dev = serial->dev;
 	err = usb_submit_urb(this_urb, GFP_ATOMIC);
 	if (err != 0)
 		dbg("%s - usb_submit_urb(setup) failed (%d)", __func__, err);
@@ -2561,7 +2474,6 @@ static int keyspan_usa67_send_setup(struct usb_serial *serial,
 
 	/* send the data out the device on control endpoint */
 	this_urb->transfer_buffer_length = sizeof(msg);
-	this_urb->dev = serial->dev;
 
 	err = usb_submit_urb(this_urb, GFP_ATOMIC);
 	if (err != 0)
@@ -2650,14 +2562,12 @@ static int keyspan_startup(struct usb_serial *serial)
 	keyspan_setup_urbs(serial);
 
 	if (s_priv->instat_urb != NULL) {
-		s_priv->instat_urb->dev = serial->dev;
 		err = usb_submit_urb(s_priv->instat_urb, GFP_KERNEL);
 		if (err != 0)
 			dbg("%s - submit instat urb failed %d", __func__,
 				err);
 	}
 	if (s_priv->indat_urb != NULL) {
-		s_priv->indat_urb->dev = serial->dev;
 		err = usb_submit_urb(s_priv->indat_urb, GFP_KERNEL);
 		if (err != 0)
 			dbg("%s - submit indat urb failed %d", __func__,
diff --git a/drivers/usb/serial/keyspan_pda.c b/drivers/usb/serial/keyspan_pda.c
index d5c0c6ab4966..a40615674a68 100644
--- a/drivers/usb/serial/keyspan_pda.c
+++ b/drivers/usb/serial/keyspan_pda.c
@@ -12,59 +12,6 @@
  *
  * See Documentation/usb/usb-serial.txt for more information on using this
  * driver
- *
- * (09/07/2001) gkh
- *	cleaned up the Xircom support.  Added ids for Entregra device which is
- *	the same as the Xircom device.  Enabled the code to be compiled for
- *	either Xircom or Keyspan devices.
- *
- * (08/11/2001) Cristian M. Craciunescu
- *	support for Xircom PGSDB9
- *
- * (05/31/2001) gkh
- *	switched from using spinlock to a semaphore, which fixes lots of
- *	problems.
- *
- * (04/08/2001) gb
- *	Identify version on module load.
- *
- * (11/01/2000) Adam J. Richter
- *	usb_device_id table support
- *
- * (10/05/2000) gkh
- *	Fixed bug with urb->dev not being set properly, now that the usb
- *	core needs it.
- *
- * (08/28/2000) gkh
- *	Added locks for SMP safeness.
- *	Fixed MOD_INC and MOD_DEC logic and the ability to open a port more
- *	than once.
- *
- * (07/20/2000) borchers
- *	- keyspan_pda_write no longer sleeps if it is called on interrupt time;
- *	  PPP and the line discipline with stty echo on can call write on
- *	  interrupt time and this would cause an oops if write slept
- *	- if keyspan_pda_write is in an interrupt, it will not call
- *	  usb_control_msg (which sleeps) to query the room in the device
- *	  buffer, it simply uses the current room value it has
- *	- if the urb is busy or if it is throttled keyspan_pda_write just
- *	  returns 0, rather than sleeping to wait for this to change; the
- *	  write_chan code in n_tty.c will sleep if needed before calling
- *	  keyspan_pda_write again
- *	- if the device needs to be unthrottled, write now queues up the
- *	  call to usb_control_msg (which sleeps) to unthrottle the device
- *	- the wakeups from keyspan_pda_write_bulk_callback are queued rather
- *	  than done directly from the callback to avoid the race in write_chan
- *	- keyspan_pda_chars_in_buffer also indicates its buffer is full if the
- *	  urb status is -EINPROGRESS, meaning it cannot write at the moment
- *
- * (07/19/2000) gkh
- *	Added module_init and module_exit functions to handle the fact that this
- *	driver is a loadable module now.
- *
- * (03/26/2000) gkh
- *	Split driver up into device specific pieces.
- *
  */
 
 
@@ -290,7 +237,6 @@ static void keyspan_pda_rx_unthrottle(struct tty_struct *tty)
 	struct usb_serial_port *port = tty->driver_data;
 	/* just restart the receive interrupt URB */
 	dbg("keyspan_pda_rx_unthrottle port %d", port->number);
-	port->interrupt_in_urb->dev = port->serial->dev;
 	if (usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL))
 		dbg(" usb_submit_urb(read urb) failed");
 }
@@ -532,11 +478,11 @@ static int keyspan_pda_write(struct tty_struct *tty,
 	   the device is full (wait until it says there is room)
 	*/
 	spin_lock_bh(&port->lock);
-	if (port->write_urb_busy || priv->tx_throttled) {
+	if (!test_bit(0, &port->write_urbs_free) || priv->tx_throttled) {
 		spin_unlock_bh(&port->lock);
 		return 0;
 	}
-	port->write_urb_busy = 1;
+	clear_bit(0, &port->write_urbs_free);
 	spin_unlock_bh(&port->lock);
 
 	/* At this point the URB is in our control, nobody else can submit it
@@ -598,7 +544,6 @@ static int keyspan_pda_write(struct tty_struct *tty,
 
 		priv->tx_room -= count;
 
-		port->write_urb->dev = port->serial->dev;
 		rc = usb_submit_urb(port->write_urb, GFP_ATOMIC);
 		if (rc) {
 			dbg(" usb_submit_urb(write bulk) failed");
@@ -618,7 +563,7 @@ static int keyspan_pda_write(struct tty_struct *tty,
 	rc = count;
 exit:
 	if (rc < 0)
-		port->write_urb_busy = 0;
+		set_bit(0, &port->write_urbs_free);
 	return rc;
 }
 
@@ -628,7 +573,7 @@ static void keyspan_pda_write_bulk_callback(struct urb *urb)
 	struct usb_serial_port *port = urb->context;
 	struct keyspan_pda_private *priv;
 
-	port->write_urb_busy = 0;
+	set_bit(0, &port->write_urbs_free);
 	priv = usb_get_serial_port_data(port);
 
 	/* queue up a wakeup at scheduler time */
@@ -661,7 +606,7 @@ static int keyspan_pda_chars_in_buffer(struct tty_struct *tty)
 	   n_tty.c:normal_poll() ) that we're not writeable. */
 
 	spin_lock_irqsave(&port->lock, flags);
-	if (port->write_urb_busy || priv->tx_throttled)
+	if (!test_bit(0, &port->write_urbs_free) || priv->tx_throttled)
 		ret = 256;
 	spin_unlock_irqrestore(&port->lock, flags);
 	return ret;
@@ -717,7 +662,6 @@ static int keyspan_pda_open(struct tty_struct *tty,
 	priv->tx_throttled = *room ? 0 : 1;
 
 	/*Start reading from the device*/
-	port->interrupt_in_urb->dev = serial->dev;
 	rc = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 	if (rc) {
 		dbg("%s - usb_submit_urb(read int) failed", __func__);
diff --git a/drivers/usb/serial/kobil_sct.c b/drivers/usb/serial/kobil_sct.c
index ddd146300ddb..5d3beeeb5fd9 100644
--- a/drivers/usb/serial/kobil_sct.c
+++ b/drivers/usb/serial/kobil_sct.c
@@ -20,18 +20,6 @@
  *
  * Supported readers: USB TWIN, KAAN Standard Plus and SecOVID Reader Plus
  * (Adapter K), B1 Professional and KAAN Professional (Adapter B)
- *
- * (21/05/2004) tw
- *      Fix bug with P'n'P readers
- *
- * (28/05/2003) tw
- *      Add support for KAAN SIM
- *
- * (12/09/2002) tw
- *      Adapted to 2.5.
- *
- * (11/08/2002) tw
- *      Initial version.
  */
 
 
@@ -231,9 +219,6 @@ static int kobil_open(struct tty_struct *tty, struct usb_serial_port *port)
 	dbg("%s - port %d", __func__, port->number);
 	priv = usb_get_serial_port_data(port);
 
-	/* someone sets the dev to 0 if the close method has been called */
-	port->interrupt_in_urb->dev = port->serial->dev;
-
 	/* allocate memory for transfer buffer */
 	transfer_buffer = kzalloc(transfer_buffer_length, GFP_KERNEL);
 	if (!transfer_buffer)
@@ -393,8 +378,6 @@ static void kobil_read_int_callback(struct urb *urb)
 		tty_flip_buffer_push(tty);
 	}
 	tty_kref_put(tty);
-	/* someone sets the dev to 0 if the close method has been called */
-	port->interrupt_in_urb->dev = port->serial->dev;
 
 	result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
 	dbg("%s - port %d Send read URB returns: %i",
@@ -475,17 +458,9 @@ static int kobil_write(struct tty_struct *tty, struct usb_serial_port *port,
 		priv->filled = 0;
 		priv->cur_pos = 0;
 
-		/* someone sets the dev to 0 if the close method
-		   has been called */
-		port->interrupt_in_urb->dev = port->serial->dev;
-
 		/* start reading (except TWIN and KAAN SIM) */
 		if (priv->device_type == KOBIL_ADAPTER_B_PRODUCT_ID ||
 			priv->device_type == KOBIL_ADAPTER_K_PRODUCT_ID) {
-			/* someone sets the dev to 0 if the close method has
-			   been called */
-			port->interrupt_in_urb->dev = port->serial->dev;
-
 			result = usb_submit_urb(port->interrupt_in_urb,
 								GFP_NOIO);
 			dbg("%s - port %d Send read URB returns: %i",
diff --git a/drivers/usb/serial/mct_u232.c b/drivers/usb/serial/mct_u232.c
index ba0d28727ccb..a975bb80303f 100644
--- a/drivers/usb/serial/mct_u232.c
+++ b/drivers/usb/serial/mct_u232.c
@@ -19,50 +19,6 @@
  *   DTR/RTS signal handling may be incomplete or incorrect. I have mainly
  *   implemented what I have seen with SniffUSB or found in belkin_sa.c.
  *   For further TODOs check also belkin_sa.c.
- *
- * TEST STATUS:
- *   Basic tests have been performed with minicom/zmodem transfers and
- *   modem dialing under Linux 2.4.0-test10 (for me it works fine).
- *
- * 04-Nov-2003 Bill Marr <marr at flex dot com>
- *   - Mimic Windows driver by sending 2 USB 'device request' messages
- *     following normal 'baud rate change' message.  This allows data to be
- *     transmitted to RS-232 devices which don't assert the 'CTS' signal.
- *
- * 10-Nov-2001 Wolfgang Grandegger
- *   - Fixed an endianess problem with the baudrate selection for PowerPC.
- *
- * 06-Dec-2001 Martin Hamilton <martinh@gnu.org>
- *   - Added support for the Belkin F5U109 DB9 adaptor
- *
- * 30-May-2001 Greg Kroah-Hartman
- *   - switched from using spinlock to a semaphore, which fixes lots of
- *     problems.
- *
- * 04-May-2001 Stelian Pop
- *   - Set the maximum bulk output size for Sitecom U232-P25 model to 16 bytes
- *     instead of the device reported 32 (using 32 bytes causes many data
- *     loss, Windows driver uses 16 too).
- *
- * 02-May-2001 Stelian Pop
- *   - Fixed the baud calculation for Sitecom U232-P25 model
- *
- * 08-Apr-2001 gb
- *   - Identify version on module load.
- *
- * 06-Jan-2001 Cornel Ciocirlan
- *   - Added support for Sitecom U232-P25 model (Product Id 0x0230)
- *   - Added support for D-Link DU-H3SP USB BAY (Product Id 0x0200)
- *
- * 29-Nov-2000 Greg Kroah-Hartman
- *   - Added device id table to fit with 2.4.0-test11 structure.
- *   - took out DEAL_WITH_TWO_INT_IN_ENDPOINTS #define as it's not needed
- *     (lots of things will change if/when the usb-serial core changes to
- *     handle these issues.
- *
- * 27-Nov-2000 Wolfgang Grandegge
- *   A version for kernel 2.4.0-test10 released to the Linux community
- *   (via linux-usb-devel).
  */
 
 #include <linux/kernel.h>
@@ -526,7 +482,6 @@ static int  mct_u232_open(struct tty_struct *tty, struct usb_serial_port *port)
 	mct_u232_msr_to_state(&priv->control_state, priv->last_msr);
 	spin_unlock_irqrestore(&priv->lock, flags);
 
-	port->read_urb->dev = port->serial->dev;
 	retval = usb_submit_urb(port->read_urb, GFP_KERNEL);
 	if (retval) {
 		dev_err(&port->dev,
@@ -535,7 +490,6 @@ static int  mct_u232_open(struct tty_struct *tty, struct usb_serial_port *port)
 		goto error;
 	}
 
-	port->interrupt_in_urb->dev = port->serial->dev;
 	retval = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 	if (retval) {
 		usb_kill_urb(port->read_urb);
diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c
index 3524a105d042..19d112f51b97 100644
--- a/drivers/usb/serial/mos7720.c
+++ b/drivers/usb/serial/mos7720.c
@@ -939,14 +939,7 @@ static void mos7720_bulk_in_callback(struct urb *urb)
 	}
 	tty_kref_put(tty);
 
-	if (!port->read_urb) {
-		dbg("URB KILLED !!!");
-		return;
-	}
-
 	if (port->read_urb->status != -EINPROGRESS) {
-		port->read_urb->dev = port->serial->dev;
-
 		retval = usb_submit_urb(port->read_urb, GFP_ATOMIC);
 		if (retval)
 			dbg("usb_submit_urb(read bulk) failed, retval = %d",
@@ -1014,7 +1007,6 @@ static int mos77xx_calc_num_ports(struct usb_serial *serial)
 static int mos7720_open(struct tty_struct *tty, struct usb_serial_port *port)
 {
 	struct usb_serial *serial;
-	struct usb_serial_port *port0;
 	struct urb *urb;
 	struct moschip_port *mos7720_port;
 	int response;
@@ -1029,8 +1021,6 @@ static int mos7720_open(struct tty_struct *tty, struct usb_serial_port *port)
 	if (mos7720_port == NULL)
 		return -ENODEV;
 
-	port0 = serial->port[0];
-
 	usb_clear_halt(serial->dev, port->write_urb->pipe);
 	usb_clear_halt(serial->dev, port->read_urb->pipe);
 
@@ -1735,8 +1725,6 @@ static void change_port_settings(struct tty_struct *tty,
 	write_mos_reg(serial, port_number, IER, 0x0c);
 
 	if (port->read_urb->status != -EINPROGRESS) {
-		port->read_urb->dev = serial->dev;
-
 		status = usb_submit_urb(port->read_urb, GFP_ATOMIC);
 		if (status)
 			dbg("usb_submit_urb(read bulk) failed, status = %d",
@@ -1786,13 +1774,7 @@ static void mos7720_set_termios(struct tty_struct *tty,
 	/* change the port settings to the new ones specified */
 	change_port_settings(tty, mos7720_port, old_termios);
 
-	if (!port->read_urb) {
-		dbg("%s", "URB KILLED !!!!!");
-		return;
-	}
-
 	if (port->read_urb->status != -EINPROGRESS) {
-		port->read_urb->dev = serial->dev;
 		status = usb_submit_urb(port->read_urb, GFP_ATOMIC);
 		if (status)
 			dbg("usb_submit_urb(read bulk) failed, status = %d",
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index c72abd524983..55cfd6265b98 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -792,8 +792,6 @@ static void mos7840_bulk_in_callback(struct urb *urb)
 	}
 
 
-	mos7840_port->read_urb->dev = serial->dev;
-
 	mos7840_port->read_urb_busy = true;
 	retval = usb_submit_urb(mos7840_port->read_urb, GFP_ATOMIC);
 
@@ -2058,7 +2056,6 @@ static void mos7840_change_port_settings(struct tty_struct *tty,
 	mos7840_set_uart_reg(port, INTERRUPT_ENABLE_REGISTER, Data);
 
 	if (mos7840_port->read_urb_busy == false) {
-		mos7840_port->read_urb->dev = serial->dev;
 		mos7840_port->read_urb_busy = true;
 		status = usb_submit_urb(mos7840_port->read_urb, GFP_ATOMIC);
 		if (status) {
@@ -2130,7 +2127,6 @@ static void mos7840_set_termios(struct tty_struct *tty,
 	}
 
 	if (mos7840_port->read_urb_busy == false) {
-		mos7840_port->read_urb->dev = serial->dev;
 		mos7840_port->read_urb_busy = true;
 		status = usb_submit_urb(mos7840_port->read_urb, GFP_ATOMIC);
 		if (status) {
diff --git a/drivers/usb/serial/omninet.c b/drivers/usb/serial/omninet.c
index 60f38d5e64fc..45a8c55881d3 100644
--- a/drivers/usb/serial/omninet.c
+++ b/drivers/usb/serial/omninet.c
@@ -9,31 +9,6 @@
  * driver
  *
  * Please report both successes and troubles to the author at omninet@kroah.com
- *
- * (05/30/2001) gkh
- *	switched from using spinlock to a semaphore, which fixes lots of
- *	problems.
- *
- * (04/08/2001) gb
- *	Identify version on module load.
- *
- * (11/01/2000) Adam J. Richter
- *	usb_device_id table support
- *
- * (10/05/2000) gkh
- *	Fixed bug with urb->dev not being set properly, now that the usb
- *	core needs it.
- *
- * (08/28/2000) gkh
- *	Added locks for SMP safeness.
- *	Fixed MOD_INC and MOD_DEC logic and the ability to open a port more
- *	than once.
- *	Fixed potential race in omninet_write_bulk_callback
- *
- * (07/19/2000) gkh
- *	Added module_init and module_exit functions to handle the fact that this
- *	driver is a loadable module now.
- *
  */
 
 #include <linux/kernel.h>
@@ -44,7 +19,6 @@
 #include <linux/tty_driver.h>
 #include <linux/tty_flip.h>
 #include <linux/module.h>
-#include <linux/spinlock.h>
 #include <linux/uaccess.h>
 #include <linux/usb.h>
 #include <linux/usb/serial.h>
@@ -174,12 +148,6 @@ static int omninet_open(struct tty_struct *tty, struct usb_serial_port *port)
 	tty_port_tty_set(&wport->port, tty);
 
 	/* Start reading from the device */
-	usb_fill_bulk_urb(port->read_urb, serial->dev,
-			usb_rcvbulkpipe(serial->dev,
-				port->bulk_in_endpointAddress),
-			port->read_urb->transfer_buffer,
-			port->read_urb->transfer_buffer_length,
-			omninet_read_bulk_callback, port);
 	result = usb_submit_urb(port->read_urb, GFP_KERNEL);
 	if (result)
 		dev_err(&port->dev,
@@ -236,11 +204,6 @@ static void omninet_read_bulk_callback(struct urb *urb)
 	}
 
 	/* Continue trying to always read  */
-	usb_fill_bulk_urb(urb, port->serial->dev,
-			usb_rcvbulkpipe(port->serial->dev,
-					port->bulk_in_endpointAddress),
-			urb->transfer_buffer, urb->transfer_buffer_length,
-			omninet_read_bulk_callback, port);
 	result = usb_submit_urb(urb, GFP_ATOMIC);
 	if (result)
 		dev_err(&port->dev,
@@ -267,14 +230,10 @@ static int omninet_write(struct tty_struct *tty, struct usb_serial_port *port,
 		return 0;
 	}
 
-	spin_lock_bh(&wport->lock);
-	if (wport->write_urb_busy) {
-		spin_unlock_bh(&wport->lock);
+	if (!test_and_clear_bit(0, &port->write_urbs_free)) {
 		dbg("%s - already writing", __func__);
 		return 0;
 	}
-	wport->write_urb_busy = 1;
-	spin_unlock_bh(&wport->lock);
 
 	count = (count > OMNINET_BULKOUTSIZE) ? OMNINET_BULKOUTSIZE : count;
 
@@ -292,10 +251,9 @@ static int omninet_write(struct tty_struct *tty, struct usb_serial_port *port,
 	/* send the data out the bulk port, always 64 bytes */
 	wport->write_urb->transfer_buffer_length = 64;
 
-	wport->write_urb->dev = serial->dev;
 	result = usb_submit_urb(wport->write_urb, GFP_ATOMIC);
 	if (result) {
-		wport->write_urb_busy = 0;
+		set_bit(0, &wport->write_urbs_free);
 		dev_err(&port->dev,
 			"%s - failed submitting write urb, error %d\n",
 			__func__, result);
@@ -314,8 +272,7 @@ static int omninet_write_room(struct tty_struct *tty)
 
 	int room = 0; /* Default: no room */
 
-	/* FIXME: no consistent locking for write_urb_busy */
-	if (wport->write_urb_busy)
+	if (test_bit(0, &wport->write_urbs_free))
 		room = wport->bulk_out_size - OMNINET_HEADERLEN;
 
 	dbg("%s - returns %d", __func__, room);
@@ -332,7 +289,7 @@ static void omninet_write_bulk_callback(struct urb *urb)
 
 	dbg("%s - port %0x", __func__, port->number);
 
-	port->write_urb_busy = 0;
+	set_bit(0, &port->write_urbs_free);
 	if (status) {
 		dbg("%s - nonzero write bulk status received: %d",
 		    __func__, status);
diff --git a/drivers/usb/serial/opticon.c b/drivers/usb/serial/opticon.c
index c248a9147439..691f57a9d712 100644
--- a/drivers/usb/serial/opticon.c
+++ b/drivers/usb/serial/opticon.c
@@ -384,7 +384,6 @@ static void opticon_unthrottle(struct tty_struct *tty)
 	priv->actually_throttled = false;
 	spin_unlock_irqrestore(&priv->lock, flags);
 
-	priv->bulk_read_urb->dev = port->serial->dev;
 	if (was_throttled) {
 		result = usb_submit_urb(priv->bulk_read_urb, GFP_ATOMIC);
 		if (result)
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 6dd64534fad0..c96b6b6509fb 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -476,6 +476,10 @@ static void option_instat_callback(struct urb *urb);
 #define VIETTEL_VENDOR_ID			0x2262
 #define VIETTEL_PRODUCT_VT1000			0x0002
 
+/* ZD Incorporated */
+#define ZD_VENDOR_ID				0x0685
+#define ZD_PRODUCT_7000				0x7000
+
 /* some devices interfaces need special handling due to a number of reasons */
 enum option_blacklist_reason {
 		OPTION_BLACKLIST_NONE = 0,
@@ -1178,6 +1182,7 @@ static const struct usb_device_id option_ids[] = {
 	{ USB_DEVICE(YUGA_VENDOR_ID, YUGA_PRODUCT_CLU528) },
 	{ USB_DEVICE(YUGA_VENDOR_ID, YUGA_PRODUCT_CLU526) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(VIETTEL_VENDOR_ID, VIETTEL_PRODUCT_VT1000, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZD_VENDOR_ID, ZD_PRODUCT_7000, 0xff, 0xff, 0xff) },
 	{ } /* Terminating entry */
 };
 MODULE_DEVICE_TABLE(usb, option_ids);
diff --git a/drivers/usb/serial/oti6858.c b/drivers/usb/serial/oti6858.c
index 4c29e6c2bda7..2161d1c3c089 100644
--- a/drivers/usb/serial/oti6858.c
+++ b/drivers/usb/serial/oti6858.c
@@ -264,7 +264,6 @@ static void setup_line(struct work_struct *work)
 	spin_unlock_irqrestore(&priv->lock, flags);
 
 	dbg("%s(): submitting interrupt urb", __func__);
-	port->interrupt_in_urb->dev = port->serial->dev;
 	result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 	if (result != 0) {
 		dev_err(&port->dev, "%s(): usb_submit_urb() failed"
@@ -321,7 +320,6 @@ static void send_data(struct work_struct *work)
 		priv->flags.write_urb_in_use = 0;
 
 		dbg("%s(): submitting interrupt urb", __func__);
-		port->interrupt_in_urb->dev = port->serial->dev;
 		result = usb_submit_urb(port->interrupt_in_urb, GFP_NOIO);
 		if (result != 0) {
 			dev_err(&port->dev, "%s(): usb_submit_urb() failed"
@@ -334,7 +332,6 @@ static void send_data(struct work_struct *work)
 					port->write_urb->transfer_buffer,
 					count, &port->lock);
 	port->write_urb->transfer_buffer_length = count;
-	port->write_urb->dev = port->serial->dev;
 	result = usb_submit_urb(port->write_urb, GFP_NOIO);
 	if (result != 0) {
 		dev_err(&port->dev, "%s(): usb_submit_urb() failed"
@@ -583,13 +580,12 @@ static int oti6858_open(struct tty_struct *tty, struct usb_serial_port *port)
 	kfree(buf);
 
 	dbg("%s(): submitting interrupt urb", __func__);
-	port->interrupt_in_urb->dev = serial->dev;
 	result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 	if (result != 0) {
 		dev_err(&port->dev, "%s(): usb_submit_urb() failed"
 			       " with error %d\n", __func__, result);
 		oti6858_close(port);
-		return -EPROTO;
+		return result;
 	}
 
 	/* setup termios */
@@ -837,7 +833,6 @@ static void oti6858_read_int_callback(struct urb *urb)
 	if (can_recv) {
 		int result;
 
-		port->read_urb->dev = port->serial->dev;
 		result = usb_submit_urb(port->read_urb, GFP_ATOMIC);
 		if (result != 0) {
 			priv->flags.read_urb_in_use = 0;
@@ -866,7 +861,6 @@ static void oti6858_read_int_callback(struct urb *urb)
 		int result;
 
 /*		dbg("%s(): submitting interrupt urb", __func__); */
-		urb->dev = port->serial->dev;
 		result = usb_submit_urb(urb, GFP_ATOMIC);
 		if (result != 0) {
 			dev_err(&urb->dev->dev,
@@ -894,18 +888,6 @@ static void oti6858_read_bulk_callback(struct urb *urb)
 	spin_unlock_irqrestore(&priv->lock, flags);
 
 	if (status != 0) {
-		/*
-		if (status == -EPROTO) {
-			* PL2303 mysteriously fails with -EPROTO reschedule
-			   the read *
-			dbg("%s - caught -EPROTO, resubmitting the urb",
-								__func__);
-			result = usb_submit_urb(urb, GFP_ATOMIC);
-			if (result)
-				dev_err(&urb->dev->dev, "%s - failed resubmitting read urb, error %d\n", __func__, result);
-			return;
-		}
-		*/
 		dbg("%s(): unable to handle the error, exiting", __func__);
 		return;
 	}
@@ -918,7 +900,6 @@ static void oti6858_read_bulk_callback(struct urb *urb)
 	tty_kref_put(tty);
 
 	/* schedule the interrupt urb */
-	port->interrupt_in_urb->dev = port->serial->dev;
 	result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
 	if (result != 0 && result != -EPERM) {
 		dev_err(&port->dev, "%s(): usb_submit_urb() failed,"
@@ -955,7 +936,6 @@ static void oti6858_write_bulk_callback(struct urb *urb)
 		dbg("%s(): overflow in write", __func__);
 
 		port->write_urb->transfer_buffer_length = 1;
-		port->write_urb->dev = port->serial->dev;
 		result = usb_submit_urb(port->write_urb, GFP_ATOMIC);
 		if (result) {
 			dev_err(&port->dev, "%s(): usb_submit_urb() failed,"
@@ -968,7 +948,6 @@ static void oti6858_write_bulk_callback(struct urb *urb)
 	priv->flags.write_urb_in_use = 0;
 
 	/* schedule the interrupt urb if we are still open */
-	port->interrupt_in_urb->dev = port->serial->dev;
 	dbg("%s(): submitting interrupt urb", __func__);
 	result = usb_submit_urb(port->interrupt_in_urb, GFP_ATOMIC);
 	if (result != 0) {
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index fc2d66f7f4eb..329295615d06 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -502,21 +502,20 @@ static int pl2303_open(struct tty_struct *tty, struct usb_serial_port *port)
 	if (tty)
 		pl2303_set_termios(tty, port, &tmp_termios);
 
-	dbg("%s - submitting read urb", __func__);
-	result = usb_serial_generic_submit_read_urb(port, GFP_KERNEL);
-	if (result) {
-		pl2303_close(port);
-		return -EPROTO;
-	}
-
 	dbg("%s - submitting interrupt urb", __func__);
 	result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 	if (result) {
 		dev_err(&port->dev, "%s - failed submitting interrupt urb,"
 			" error %d\n", __func__, result);
-		pl2303_close(port);
-		return -EPROTO;
+		return result;
 	}
+
+	result = usb_serial_generic_open(tty, port);
+	if (result) {
+		usb_kill_urb(port->interrupt_in_urb);
+		return result;
+	}
+
 	port->port.drain_delay = 256;
 	return 0;
 }
diff --git a/drivers/usb/serial/sierra.c b/drivers/usb/serial/sierra.c
index b18179bda0d8..f2485429172f 100644
--- a/drivers/usb/serial/sierra.c
+++ b/drivers/usb/serial/sierra.c
@@ -681,7 +681,6 @@ static void sierra_instat_callback(struct urb *urb)
 	/* Resubmit urb so we continue receiving IRQ data */
 	if (status != -ESHUTDOWN && status != -ENOENT) {
 		usb_mark_last_busy(serial->dev);
-		urb->dev = serial->dev;
 		err = usb_submit_urb(urb, GFP_ATOMIC);
 		if (err && err != -EPERM)
 			dev_err(&port->dev, "%s: resubmit intr urb "
diff --git a/drivers/usb/serial/symbolserial.c b/drivers/usb/serial/symbolserial.c
index 7096f799b071..c70cc012d03f 100644
--- a/drivers/usb/serial/symbolserial.c
+++ b/drivers/usb/serial/symbolserial.c
@@ -182,7 +182,6 @@ static void symbol_unthrottle(struct tty_struct *tty)
 	priv->actually_throttled = false;
 	spin_unlock_irq(&priv->lock);
 
-	priv->int_urb->dev = port->serial->dev;
 	if (was_throttled) {
 		result = usb_submit_urb(priv->int_urb, GFP_KERNEL);
 		if (result)
diff --git a/drivers/usb/serial/ti_usb_3410_5052.c b/drivers/usb/serial/ti_usb_3410_5052.c
index ea8445689c85..4af21f46096e 100644
--- a/drivers/usb/serial/ti_usb_3410_5052.c
+++ b/drivers/usb/serial/ti_usb_3410_5052.c
@@ -535,9 +535,7 @@ static int ti_open(struct tty_struct *tty, struct usb_serial_port *port)
 			status = -EINVAL;
 			goto release_lock;
 		}
-		urb->complete = ti_interrupt_callback;
 		urb->context = tdev;
-		urb->dev = dev;
 		status = usb_submit_urb(urb, GFP_KERNEL);
 		if (status) {
 			dev_err(&port->dev,
@@ -619,9 +617,7 @@ static int ti_open(struct tty_struct *tty, struct usb_serial_port *port)
 		goto unlink_int_urb;
 	}
 	tport->tp_read_urb_state = TI_READ_URB_RUNNING;
-	urb->complete = ti_bulk_in_callback;
 	urb->context = tport;
-	urb->dev = dev;
 	status = usb_submit_urb(urb, GFP_KERNEL);
 	if (status) {
 		dev_err(&port->dev, "%s - submit read urb failed, %d\n",
@@ -1236,12 +1232,11 @@ static void ti_bulk_in_callback(struct urb *urb)
 exit:
 	/* continue to read unless stopping */
 	spin_lock(&tport->tp_lock);
-	if (tport->tp_read_urb_state == TI_READ_URB_RUNNING) {
-		urb->dev = port->serial->dev;
+	if (tport->tp_read_urb_state == TI_READ_URB_RUNNING)
 		retval = usb_submit_urb(urb, GFP_ATOMIC);
-	} else if (tport->tp_read_urb_state == TI_READ_URB_STOPPING) {
+	else if (tport->tp_read_urb_state == TI_READ_URB_STOPPING)
 		tport->tp_read_urb_state = TI_READ_URB_STOPPED;
-	}
+
 	spin_unlock(&tport->tp_lock);
 	if (retval)
 		dev_err(dev, "%s - resubmit read urb failed, %d\n",
@@ -1574,9 +1569,7 @@ static int ti_restart_read(struct ti_port *tport, struct tty_struct *tty)
 		tport->tp_read_urb_state = TI_READ_URB_RUNNING;
 		urb = tport->tp_port->read_urb;
 		spin_unlock_irqrestore(&tport->tp_lock, flags);
-		urb->complete = ti_bulk_in_callback;
 		urb->context = tport;
-		urb->dev = tport->tp_port->serial->dev;
 		status = usb_submit_urb(urb, GFP_KERNEL);
 	} else  {
 		tport->tp_read_urb_state = TI_READ_URB_RUNNING;
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index cc274fdf2627..ce6c1a65a544 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -50,7 +50,7 @@ static struct usb_driver usb_serial_driver = {
 	.disconnect =	usb_serial_disconnect,
 	.suspend =	usb_serial_suspend,
 	.resume =	usb_serial_resume,
-	.no_dynamic_id = 	1,
+	.no_dynamic_id =	1,
 	.supports_autosuspend =	1,
 };
 
@@ -260,6 +260,10 @@ static int serial_activate(struct tty_port *tport, struct tty_struct *tty)
 	else
 		retval = port->serial->type->open(tty, port);
 	mutex_unlock(&serial->disc_mutex);
+
+	if (retval < 0)
+		retval = usb_translate_errors(retval);
+
 	return retval;
 }
 
@@ -360,7 +364,8 @@ static int serial_write(struct tty_struct *tty, const unsigned char *buf,
 
 	/* pass on to the driver specific version of this function */
 	retval = port->serial->type->write(tty, port, buf, count);
-
+	if (retval < 0)
+		retval = usb_translate_errors(retval);
 exit:
 	return retval;
 }
@@ -562,8 +567,8 @@ static void kill_traffic(struct usb_serial_port *port)
 {
 	int i;
 
-	usb_kill_urb(port->read_urb);
-	usb_kill_urb(port->write_urb);
+	for (i = 0; i < ARRAY_SIZE(port->read_urbs); ++i)
+		usb_kill_urb(port->read_urbs[i]);
 	for (i = 0; i < ARRAY_SIZE(port->write_urbs); ++i)
 		usb_kill_urb(port->write_urbs[i]);
 	/*
@@ -595,17 +600,17 @@ static void port_release(struct device *dev)
 	kill_traffic(port);
 	cancel_work_sync(&port->work);
 
-	usb_free_urb(port->read_urb);
-	usb_free_urb(port->write_urb);
 	usb_free_urb(port->interrupt_in_urb);
 	usb_free_urb(port->interrupt_out_urb);
+	for (i = 0; i < ARRAY_SIZE(port->read_urbs); ++i) {
+		usb_free_urb(port->read_urbs[i]);
+		kfree(port->bulk_in_buffers[i]);
+	}
 	for (i = 0; i < ARRAY_SIZE(port->write_urbs); ++i) {
 		usb_free_urb(port->write_urbs[i]);
 		kfree(port->bulk_out_buffers[i]);
 	}
 	kfifo_free(&port->write_fifo);
-	kfree(port->bulk_in_buffer);
-	kfree(port->bulk_out_buffer);
 	kfree(port->interrupt_in_buffer);
 	kfree(port->interrupt_out_buffer);
 	kfree(port);
@@ -686,16 +691,18 @@ static int serial_carrier_raised(struct tty_port *port)
 {
 	struct usb_serial_port *p = container_of(port, struct usb_serial_port, port);
 	struct usb_serial_driver *drv = p->serial->type;
+
 	if (drv->carrier_raised)
 		return drv->carrier_raised(p);
 	/* No carrier control - don't block */
-	return 1;	
+	return 1;
 }
 
 static void serial_dtr_rts(struct tty_port *port, int on)
 {
 	struct usb_serial_port *p = container_of(port, struct usb_serial_port, port);
 	struct usb_serial_driver *drv = p->serial->type;
+
 	if (drv->dtr_rts)
 		drv->dtr_rts(p, on);
 }
@@ -724,6 +731,7 @@ int usb_serial_probe(struct usb_interface *interface,
 	unsigned int minor;
 	int buffer_size;
 	int i;
+	int j;
 	int num_interrupt_in = 0;
 	int num_interrupt_out = 0;
 	int num_bulk_in = 0;
@@ -906,38 +914,41 @@ int usb_serial_probe(struct usb_interface *interface,
 	for (i = 0; i < num_bulk_in; ++i) {
 		endpoint = bulk_in_endpoint[i];
 		port = serial->port[i];
-		port->read_urb = usb_alloc_urb(0, GFP_KERNEL);
-		if (!port->read_urb) {
-			dev_err(&interface->dev, "No free urbs available\n");
-			goto probe_error;
-		}
 		buffer_size = max_t(int, serial->type->bulk_in_size,
 				usb_endpoint_maxp(endpoint));
 		port->bulk_in_size = buffer_size;
 		port->bulk_in_endpointAddress = endpoint->bEndpointAddress;
-		port->bulk_in_buffer = kmalloc(buffer_size, GFP_KERNEL);
-		if (!port->bulk_in_buffer) {
-			dev_err(&interface->dev,
+
+		for (j = 0; j < ARRAY_SIZE(port->read_urbs); ++j) {
+			set_bit(j, &port->read_urbs_free);
+			port->read_urbs[j] = usb_alloc_urb(0, GFP_KERNEL);
+			if (!port->read_urbs[j]) {
+				dev_err(&interface->dev,
+						"No free urbs available\n");
+				goto probe_error;
+			}
+			port->bulk_in_buffers[j] = kmalloc(buffer_size,
+								GFP_KERNEL);
+			if (!port->bulk_in_buffers[j]) {
+				dev_err(&interface->dev,
 					"Couldn't allocate bulk_in_buffer\n");
-			goto probe_error;
-		}
-		usb_fill_bulk_urb(port->read_urb, dev,
-				usb_rcvbulkpipe(dev,
+				goto probe_error;
+			}
+			usb_fill_bulk_urb(port->read_urbs[j], dev,
+					usb_rcvbulkpipe(dev,
 						endpoint->bEndpointAddress),
-				port->bulk_in_buffer, buffer_size,
-				serial->type->read_bulk_callback, port);
+					port->bulk_in_buffers[j], buffer_size,
+					serial->type->read_bulk_callback,
+					port);
+		}
+
+		port->read_urb = port->read_urbs[0];
+		port->bulk_in_buffer = port->bulk_in_buffers[0];
 	}
 
 	for (i = 0; i < num_bulk_out; ++i) {
-		int j;
-
 		endpoint = bulk_out_endpoint[i];
 		port = serial->port[i];
-		port->write_urb = usb_alloc_urb(0, GFP_KERNEL);
-		if (!port->write_urb) {
-			dev_err(&interface->dev, "No free urbs available\n");
-			goto probe_error;
-		}
 		if (kfifo_alloc(&port->write_fifo, PAGE_SIZE, GFP_KERNEL))
 			goto probe_error;
 		buffer_size = serial->type->bulk_out_size;
@@ -945,17 +956,7 @@ int usb_serial_probe(struct usb_interface *interface,
 			buffer_size = usb_endpoint_maxp(endpoint);
 		port->bulk_out_size = buffer_size;
 		port->bulk_out_endpointAddress = endpoint->bEndpointAddress;
-		port->bulk_out_buffer = kmalloc(buffer_size, GFP_KERNEL);
-		if (!port->bulk_out_buffer) {
-			dev_err(&interface->dev,
-					"Couldn't allocate bulk_out_buffer\n");
-			goto probe_error;
-		}
-		usb_fill_bulk_urb(port->write_urb, dev,
-				usb_sndbulkpipe(dev,
-					endpoint->bEndpointAddress),
-				port->bulk_out_buffer, buffer_size,
-				serial->type->write_bulk_callback, port);
+
 		for (j = 0; j < ARRAY_SIZE(port->write_urbs); ++j) {
 			set_bit(j, &port->write_urbs_free);
 			port->write_urbs[j] = usb_alloc_urb(0, GFP_KERNEL);
@@ -978,6 +979,9 @@ int usb_serial_probe(struct usb_interface *interface,
 					serial->type->write_bulk_callback,
 					port);
 		}
+
+		port->write_urb = port->write_urbs[0];
+		port->bulk_out_buffer = port->bulk_out_buffers[0];
 	}
 
 	if (serial->type->read_int_callback) {
@@ -1196,7 +1200,7 @@ static const struct tty_operations serial_ops = {
 	.open =			serial_open,
 	.close =		serial_close,
 	.write =		serial_write,
-	.hangup = 		serial_hangup,
+	.hangup =		serial_hangup,
 	.write_room =		serial_write_room,
 	.ioctl =		serial_ioctl,
 	.set_termios =		serial_set_termios,
@@ -1206,9 +1210,9 @@ static const struct tty_operations serial_ops = {
 	.chars_in_buffer =	serial_chars_in_buffer,
 	.tiocmget =		serial_tiocmget,
 	.tiocmset =		serial_tiocmset,
-	.get_icount = 		serial_get_icount,
-	.cleanup = 		serial_cleanup,
-	.install = 		serial_install,
+	.get_icount =		serial_get_icount,
+	.cleanup =		serial_cleanup,
+	.install =		serial_install,
 	.proc_fops =		&serial_proc_fops,
 };
 
@@ -1237,7 +1241,7 @@ static int __init usb_serial_init(void)
 
 	usb_serial_tty_driver->owner = THIS_MODULE;
 	usb_serial_tty_driver->driver_name = "usbserial";
-	usb_serial_tty_driver->name = 	"ttyUSB";
+	usb_serial_tty_driver->name = "ttyUSB";
 	usb_serial_tty_driver->major = SERIAL_TTY_MAJOR;
 	usb_serial_tty_driver->minor_start = 0;
 	usb_serial_tty_driver->type = TTY_DRIVER_TYPE_SERIAL;
@@ -1336,7 +1340,6 @@ static void fixup_generic(struct usb_serial_driver *device)
 
 int usb_serial_register(struct usb_serial_driver *driver)
 {
-	/* must be called with BKL held */
 	int retval;
 
 	if (usb_disabled())
@@ -1374,7 +1377,6 @@ EXPORT_SYMBOL_GPL(usb_serial_register);
 
 void usb_serial_deregister(struct usb_serial_driver *device)
 {
-	/* must be called with BKL held */
 	printk(KERN_INFO "USB Serial deregistering driver %s\n",
 	       device->description);
 	mutex_lock(&table_lock);
diff --git a/drivers/usb/serial/usb_debug.c b/drivers/usb/serial/usb_debug.c
index 95a82148ee81..9b632e753210 100644
--- a/drivers/usb/serial/usb_debug.c
+++ b/drivers/usb/serial/usb_debug.c
@@ -40,7 +40,7 @@ static struct usb_driver debug_driver = {
 	.probe =	usb_serial_probe,
 	.disconnect =	usb_serial_disconnect,
 	.id_table =	id_table,
-	.no_dynamic_id = 	1,
+	.no_dynamic_id =	1,
 };
 
 /* This HW really does not support a serial break, so one will be
@@ -54,19 +54,18 @@ static void usb_debug_break_ctl(struct tty_struct *tty, int break_state)
 	usb_serial_generic_write(tty, port, USB_DEBUG_BRK, USB_DEBUG_BRK_SIZE);
 }
 
-static void usb_debug_read_bulk_callback(struct urb *urb)
+static void usb_debug_process_read_urb(struct urb *urb)
 {
 	struct usb_serial_port *port = urb->context;
 
 	if (urb->actual_length == USB_DEBUG_BRK_SIZE &&
-	    memcmp(urb->transfer_buffer, USB_DEBUG_BRK,
-		   USB_DEBUG_BRK_SIZE) == 0) {
+		memcmp(urb->transfer_buffer, USB_DEBUG_BRK,
+						USB_DEBUG_BRK_SIZE) == 0) {
 		usb_serial_handle_break(port);
-		usb_serial_generic_submit_read_urb(port, GFP_ATOMIC);
 		return;
 	}
 
-	usb_serial_generic_read_bulk_callback(urb);
+	usb_serial_generic_process_read_urb(urb);
 }
 
 static struct usb_serial_driver debug_device = {
@@ -79,7 +78,7 @@ static struct usb_serial_driver debug_device = {
 	.num_ports =		1,
 	.bulk_out_size =	USB_DEBUG_MAX_PACKET_SIZE,
 	.break_ctl =		usb_debug_break_ctl,
-	.read_bulk_callback =	usb_debug_read_bulk_callback,
+	.process_read_urb =	usb_debug_process_read_urb,
 };
 
 static int __init debug_init(void)
diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c
index 5b073bcc807b..11af903cb09f 100644
--- a/drivers/usb/serial/whiteheat.c
+++ b/drivers/usb/serial/whiteheat.c
@@ -14,57 +14,6 @@
  *
  * See Documentation/usb/usb-serial.txt for more information on using this
  * driver
- *
- * (10/09/2002) Stuart MacDonald (stuartm@connecttech.com)
- *	Upgrade to full working driver
- *
- * (05/30/2001) gkh
- *	switched from using spinlock to a semaphore, which fixes lots of
- *	problems.
- *
- * (04/08/2001) gb
- *	Identify version on module load.
- *
- * 2001_Mar_19 gkh
- *	Fixed MOD_INC and MOD_DEC logic, the ability to open a port more
- *	than once, and the got the proper usb_device_id table entries so
- *	the driver works again.
- *
- * (11/01/2000) Adam J. Richter
- *	usb_device_id table support
- *
- * (10/05/2000) gkh
- *	Fixed bug with urb->dev not being set properly, now that the usb
- *	core needs it.
- *
- * (10/03/2000) smd
- *	firmware is improved to guard against crap sent to device
- *	firmware now replies CMD_FAILURE on bad things
- *	read_callback fix you provided for private info struct
- *	command_finished now indicates success or fail
- *	setup_port struct now packed to avoid gcc padding
- *	firmware uses 1 based port numbering, driver now handles that
- *
- * (09/11/2000) gkh
- *	Removed DEBUG #ifdefs with call to usb_serial_debug_data
- *
- * (07/19/2000) gkh
- *	Added module_init and module_exit functions to handle the fact that this
- *	driver is a loadable module now.
- *	Fixed bug with port->minor that was found by Al Borchers
- *
- * (07/04/2000) gkh
- *	Added support for port settings. Baud rate can now be changed. Line
- *	signals are not transferred to and from the tty layer yet, but things
- *	seem to be working well now.
- *
- * (05/04/2000) gkh
- *	First cut at open and close commands. Data can flow through the ports at
- *	default speeds now.
- *
- * (03/26/2000) gkh
- *	Split driver up into device specific pieces.
- *
  */
 
 #include <linux/kernel.h>
@@ -753,7 +702,6 @@ static void whiteheat_close(struct usb_serial_port *port)
 static int whiteheat_write(struct tty_struct *tty,
 	struct usb_serial_port *port, const unsigned char *buf, int count)
 {
-	struct usb_serial *serial = port->serial;
 	struct whiteheat_private *info = usb_get_serial_port_data(port);
 	struct whiteheat_urb_wrap *wrap;
 	struct urb *urb;
@@ -789,7 +737,6 @@ static int whiteheat_write(struct tty_struct *tty,
 		usb_serial_debug_data(debug, &port->dev,
 				__func__, bytes, urb->transfer_buffer);
 
-		urb->dev = serial->dev;
 		urb->transfer_buffer_length = bytes;
 		result = usb_submit_urb(urb, GFP_ATOMIC);
 		if (result) {
@@ -1035,7 +982,6 @@ static void command_port_read_callback(struct urb *urb)
 		dbg("%s - bad reply from firmware", __func__);
 
 	/* Continue trying to always read */
-	command_port->read_urb->dev = command_port->serial->dev;
 	result = usb_submit_urb(command_port->read_urb, GFP_ATOMIC);
 	if (result)
 		dbg("%s - failed resubmitting read urb, error %d",
@@ -1141,7 +1087,6 @@ static int firm_send_command(struct usb_serial_port *port, __u8 command,
 	transfer_buffer[0] = command;
 	memcpy(&transfer_buffer[1], data, datasize);
 	command_port->write_urb->transfer_buffer_length = datasize + 1;
-	command_port->write_urb->dev = port->serial->dev;
 	retval = usb_submit_urb(command_port->write_urb, GFP_NOIO);
 	if (retval) {
 		dbg("%s - submit urb failed", __func__);
@@ -1362,7 +1307,6 @@ static int start_command_port(struct usb_serial *serial)
 		/* Work around HCD bugs */
 		usb_clear_halt(serial->dev, command_port->read_urb->pipe);
 
-		command_port->read_urb->dev = serial->dev;
 		retval = usb_submit_urb(command_port->read_urb, GFP_KERNEL);
 		if (retval) {
 			dev_err(&serial->dev->dev,
@@ -1410,7 +1354,6 @@ static int start_port_read(struct usb_serial_port *port)
 		list_del(tmp);
 		wrap = list_entry(tmp, struct whiteheat_urb_wrap, list);
 		urb = wrap->urb;
-		urb->dev = port->serial->dev;
 		spin_unlock_irqrestore(&info->lock, flags);
 		retval = usb_submit_urb(urb, GFP_KERNEL);
 		if (retval) {
@@ -1490,7 +1433,6 @@ static void rx_data_softint(struct work_struct *work)
 			sent += tty_insert_flip_string(tty,
 				urb->transfer_buffer, urb->actual_length);
 
-		urb->dev = port->serial->dev;
 		result = usb_submit_urb(urb, GFP_ATOMIC);
 		if (result) {
 			dev_err(&port->dev,
diff --git a/drivers/usb/storage/alauda.c b/drivers/usb/storage/alauda.c
index 3ca87a823342..51af2fee2efd 100644
--- a/drivers/usb/storage/alauda.c
+++ b/drivers/usb/storage/alauda.c
@@ -139,7 +139,7 @@ static int init_alauda(struct us_data *us);
 { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
   .driver_info = (flags)|(USB_US_TYPE_STOR<<24) }
 
-struct usb_device_id alauda_usb_ids[] = {
+static struct usb_device_id alauda_usb_ids[] = {
 #	include "unusual_alauda.h"
 	{ }		/* Terminating entry */
 };
diff --git a/drivers/usb/storage/cypress_atacb.c b/drivers/usb/storage/cypress_atacb.c
index c7909dfa2434..387cbd47acc9 100644
--- a/drivers/usb/storage/cypress_atacb.c
+++ b/drivers/usb/storage/cypress_atacb.c
@@ -43,7 +43,7 @@ MODULE_LICENSE("GPL");
 { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
   .driver_info = (flags)|(USB_US_TYPE_STOR<<24) }
 
-struct usb_device_id cypress_usb_ids[] = {
+static struct usb_device_id cypress_usb_ids[] = {
 #	include "unusual_cypress.h"
 	{ }		/* Terminating entry */
 };
diff --git a/drivers/usb/storage/datafab.c b/drivers/usb/storage/datafab.c
index a99be857b794..15d41f2b3d6f 100644
--- a/drivers/usb/storage/datafab.c
+++ b/drivers/usb/storage/datafab.c
@@ -88,7 +88,7 @@ static int datafab_determine_lun(struct us_data *us,
 { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
   .driver_info = (flags)|(USB_US_TYPE_STOR<<24) }
 
-struct usb_device_id datafab_usb_ids[] = {
+static struct usb_device_id datafab_usb_ids[] = {
 #	include "unusual_datafab.h"
 	{ }		/* Terminating entry */
 };
diff --git a/drivers/usb/storage/ene_ub6250.c b/drivers/usb/storage/ene_ub6250.c
index b0a1687ca942..a6ade4071a9a 100644
--- a/drivers/usb/storage/ene_ub6250.c
+++ b/drivers/usb/storage/ene_ub6250.c
@@ -42,7 +42,7 @@ MODULE_LICENSE("GPL");
 { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
 	.driver_info = (flags)|(USB_US_TYPE_STOR<<24) }
 
-struct usb_device_id ene_ub6250_usb_ids[] = {
+static struct usb_device_id ene_ub6250_usb_ids[] = {
 #	include "unusual_ene_ub6250.h"
 	{ }		/* Terminating entry */
 };
@@ -607,8 +607,8 @@ static int sd_scsi_mode_sense(struct us_data *us, struct scsi_cmnd *srb)
 
 static int sd_scsi_read_capacity(struct us_data *us, struct scsi_cmnd *srb)
 {
-	u32   bl_num;
-	u16    bl_len;
+	u32	bl_num;
+	u32	bl_len;
 	unsigned int offset = 0;
 	unsigned char    buf[8];
 	struct scatterlist *sg = NULL;
@@ -622,7 +622,7 @@ static int sd_scsi_read_capacity(struct us_data *us, struct scsi_cmnd *srb)
 		else
 			bl_num = (info->HC_C_SIZE + 1) * 1024 - 1;
 	} else {
-		bl_len = 1<<(info->SD_READ_BL_LEN);
+		bl_len = 1 << (info->SD_READ_BL_LEN);
 		bl_num = info->SD_Block_Mult * (info->SD_C_SIZE + 1)
 				* (1 << (info->SD_C_SIZE_MULT + 2)) - 1;
 	}
@@ -777,7 +777,7 @@ static int ms_lib_free_logicalmap(struct us_data *us)
 	return 0;
 }
 
-int ms_lib_alloc_logicalmap(struct us_data *us)
+static int ms_lib_alloc_logicalmap(struct us_data *us)
 {
 	u32  i;
 	struct ene_ub6250_info *info = (struct ene_ub6250_info *) us->extra;
@@ -2248,7 +2248,7 @@ static int sd_scsi_irp(struct us_data *us, struct scsi_cmnd *srb)
 /*
  * ms_scsi_irp()
  */
-int ms_scsi_irp(struct us_data *us, struct scsi_cmnd *srb)
+static int ms_scsi_irp(struct us_data *us, struct scsi_cmnd *srb)
 {
 	int result;
 	struct ene_ub6250_info *info = (struct ene_ub6250_info *)us->extra;
diff --git a/drivers/usb/storage/freecom.c b/drivers/usb/storage/freecom.c
index 03d4a873748c..fa1615748475 100644
--- a/drivers/usb/storage/freecom.c
+++ b/drivers/usb/storage/freecom.c
@@ -119,7 +119,7 @@ static int init_freecom(struct us_data *us);
 { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
   .driver_info = (flags)|(USB_US_TYPE_STOR<<24) }
 
-struct usb_device_id freecom_usb_ids[] = {
+static struct usb_device_id freecom_usb_ids[] = {
 #	include "unusual_freecom.h"
 	{ }		/* Terminating entry */
 };
diff --git a/drivers/usb/storage/isd200.c b/drivers/usb/storage/isd200.c
index 93d359f4d6a7..bd5502700831 100644
--- a/drivers/usb/storage/isd200.c
+++ b/drivers/usb/storage/isd200.c
@@ -76,7 +76,7 @@ static int isd200_Initialization(struct us_data *us);
 { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
   .driver_info = (flags)|(USB_US_TYPE_STOR<<24) }
 
-struct usb_device_id isd200_usb_ids[] = {
+static struct usb_device_id isd200_usb_ids[] = {
 #	include "unusual_isd200.h"
 	{ }		/* Terminating entry */
 };
diff --git a/drivers/usb/storage/jumpshot.c b/drivers/usb/storage/jumpshot.c
index 54b71650b69c..a19211b5c265 100644
--- a/drivers/usb/storage/jumpshot.c
+++ b/drivers/usb/storage/jumpshot.c
@@ -71,7 +71,7 @@ MODULE_LICENSE("GPL");
 { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
   .driver_info = (flags)|(USB_US_TYPE_STOR<<24) }
 
-struct usb_device_id jumpshot_usb_ids[] = {
+static struct usb_device_id jumpshot_usb_ids[] = {
 #	include "unusual_jumpshot.h"
 	{ }		/* Terminating entry */
 };
diff --git a/drivers/usb/storage/karma.c b/drivers/usb/storage/karma.c
index 35181e29124d..e720f8ebdf9f 100644
--- a/drivers/usb/storage/karma.c
+++ b/drivers/usb/storage/karma.c
@@ -59,7 +59,7 @@ static int rio_karma_init(struct us_data *us);
 { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
   .driver_info = (flags)|(USB_US_TYPE_STOR<<24) }
 
-struct usb_device_id karma_usb_ids[] = {
+static struct usb_device_id karma_usb_ids[] = {
 #	include "unusual_karma.h"
 	{ }		/* Terminating entry */
 };
diff --git a/drivers/usb/storage/onetouch.c b/drivers/usb/storage/onetouch.c
index 721c8c587305..d75155c38200 100644
--- a/drivers/usb/storage/onetouch.c
+++ b/drivers/usb/storage/onetouch.c
@@ -69,7 +69,7 @@ struct usb_onetouch {
 { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
   .driver_info = (flags)|(USB_US_TYPE_STOR<<24) }
 
-struct usb_device_id onetouch_usb_ids[] = {
+static struct usb_device_id onetouch_usb_ids[] = {
 #	include "unusual_onetouch.h"
 	{ }		/* Terminating entry */
 };
diff --git a/drivers/usb/storage/realtek_cr.c b/drivers/usb/storage/realtek_cr.c
index c41cd30d2c01..1f62723ef1a8 100644
--- a/drivers/usb/storage/realtek_cr.c
+++ b/drivers/usb/storage/realtek_cr.c
@@ -398,10 +398,9 @@ static int rts51x_write_mem(struct us_data *us, u16 addr, u8 *data, u16 len)
 	u8 cmnd[12] = { 0 };
 	u8 *buf;
 
-	buf = kmalloc(len, GFP_NOIO);
+	buf = kmemdup(data, len, GFP_NOIO);
 	if (buf == NULL)
 		return USB_STOR_TRANSPORT_ERROR;
-	memcpy(buf, data, len);
 
 	US_DEBUGP("%s, addr = 0x%x, len = %d\n", __func__, addr, len);
 
@@ -507,15 +506,14 @@ static int enable_oscillator(struct us_data *us)
 static int __do_config_autodelink(struct us_data *us, u8 *data, u16 len)
 {
 	int retval;
-	u16 addr = 0xFE47;
 	u8 cmnd[12] = {0};
 
-	US_DEBUGP("%s, addr = 0x%x, len = %d\n", __FUNCTION__, addr, len);
+	US_DEBUGP("%s, addr = 0xfe47, len = %d\n", __FUNCTION__, len);
 
 	cmnd[0] = 0xF0;
 	cmnd[1] = 0x0E;
-	cmnd[2] = (u8)(addr >> 8);
-	cmnd[3] = (u8)addr;
+	cmnd[2] = 0xfe;
+	cmnd[3] = 0x47;
 	cmnd[4] = (u8)(len >> 8);
 	cmnd[5] = (u8)len;
 
@@ -818,7 +816,7 @@ static inline int working_scsi(struct scsi_cmnd *srb)
 	return 1;
 }
 
-void rts51x_invoke_transport(struct scsi_cmnd *srb, struct us_data *us)
+static void rts51x_invoke_transport(struct scsi_cmnd *srb, struct us_data *us)
 {
 	struct rts51x_chip *chip = (struct rts51x_chip *)(us->extra);
 	static int card_first_show = 1;
@@ -977,7 +975,7 @@ static void realtek_cr_destructor(void *extra)
 }
 
 #ifdef CONFIG_PM
-int realtek_cr_suspend(struct usb_interface *iface, pm_message_t message)
+static int realtek_cr_suspend(struct usb_interface *iface, pm_message_t message)
 {
 	struct us_data *us = usb_get_intfdata(iface);
 
diff --git a/drivers/usb/storage/sddr09.c b/drivers/usb/storage/sddr09.c
index 83ee49e737bd..425df7df2e56 100644
--- a/drivers/usb/storage/sddr09.c
+++ b/drivers/usb/storage/sddr09.c
@@ -71,7 +71,7 @@ static int usb_stor_sddr09_init(struct us_data *us);
 { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
   .driver_info = (flags)|(USB_US_TYPE_STOR<<24) }
 
-struct usb_device_id sddr09_usb_ids[] = {
+static struct usb_device_id sddr09_usb_ids[] = {
 #	include "unusual_sddr09.h"
 	{ }		/* Terminating entry */
 };
diff --git a/drivers/usb/storage/sddr55.c b/drivers/usb/storage/sddr55.c
index 8983ec2ffb5a..e4ca5fcb7cc3 100644
--- a/drivers/usb/storage/sddr55.c
+++ b/drivers/usb/storage/sddr55.c
@@ -48,7 +48,7 @@ MODULE_LICENSE("GPL");
 { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
   .driver_info = (flags)|(USB_US_TYPE_STOR<<24) }
 
-struct usb_device_id sddr55_usb_ids[] = {
+static struct usb_device_id sddr55_usb_ids[] = {
 #	include "unusual_sddr55.h"
 	{ }		/* Terminating entry */
 };
diff --git a/drivers/usb/storage/shuttle_usbat.c b/drivers/usb/storage/shuttle_usbat.c
index a4c02751af4e..1369d2590616 100644
--- a/drivers/usb/storage/shuttle_usbat.c
+++ b/drivers/usb/storage/shuttle_usbat.c
@@ -170,7 +170,7 @@ static int init_usbat_flash(struct us_data *us);
 { USB_DEVICE_VER(id_vendor, id_product, bcdDeviceMin, bcdDeviceMax), \
   .driver_info = (flags)|(USB_US_TYPE_STOR<<24) }
 
-struct usb_device_id usbat_usb_ids[] = {
+static struct usb_device_id usbat_usb_ids[] = {
 #	include "unusual_usbat.h"
 	{ }		/* Terminating entry */
 };
diff --git a/drivers/usb/storage/usb.c b/drivers/usb/storage/usb.c
index aa84b3d77274..3dd7da9fd504 100644
--- a/drivers/usb/storage/usb.c
+++ b/drivers/usb/storage/usb.c
@@ -1074,6 +1074,7 @@ static struct usb_driver usb_storage_driver = {
 	.id_table =	usb_storage_usb_ids,
 	.supports_autosuspend = 1,
 	.soft_unbind =	1,
+	.no_dynamic_id = 1,
 };
 
 static int __init usb_stor_init(void)
diff --git a/drivers/usb/usb-skeleton.c b/drivers/usb/usb-skeleton.c
index 5c6c1bdbd455..8efeae24764f 100644
--- a/drivers/usb/usb-skeleton.c
+++ b/drivers/usb/usb-skeleton.c
@@ -27,6 +27,8 @@
 #define USB_SKEL_VENDOR_ID	0xfff0
 #define USB_SKEL_PRODUCT_ID	0xfff0
 
+static DEFINE_MUTEX(skel_mutex);
+
 /* table of devices that work with this driver */
 static const struct usb_device_id skel_table[] = {
 	{ USB_DEVICE(USB_SKEL_VENDOR_ID, USB_SKEL_PRODUCT_ID) },
@@ -60,7 +62,6 @@ struct usb_skel {
 	__u8			bulk_in_endpointAddr;	/* the address of the bulk in endpoint */
 	__u8			bulk_out_endpointAddr;	/* the address of the bulk out endpoint */
 	int			errors;			/* the last request tanked */
-	int			open_count;		/* count the number of openers */
 	bool			ongoing_read;		/* a read is going on */
 	bool			processed_urb;		/* indicates we haven't processed the urb */
 	spinlock_t		err_lock;		/* lock for errors */
@@ -100,39 +101,37 @@ static int skel_open(struct inode *inode, struct file *file)
 		goto exit;
 	}
 
+	mutex_lock(&skel_mutex);
 	dev = usb_get_intfdata(interface);
 	if (!dev) {
+		mutex_unlock(&skel_mutex);
 		retval = -ENODEV;
 		goto exit;
 	}
 
 	/* increment our usage count for the device */
 	kref_get(&dev->kref);
+	mutex_unlock(&skel_mutex);
 
 	/* lock the device to allow correctly handling errors
 	 * in resumption */
 	mutex_lock(&dev->io_mutex);
+	if (!dev->interface) {
+		retval = -ENODEV;
+		goto out_err;
+	}
 
-	if (!dev->open_count++) {
-		retval = usb_autopm_get_interface(interface);
-			if (retval) {
-				dev->open_count--;
-				mutex_unlock(&dev->io_mutex);
-				kref_put(&dev->kref, skel_delete);
-				goto exit;
-			}
-	} /* else { //uncomment this block if you want exclusive open
-		retval = -EBUSY;
-		dev->open_count--;
-		mutex_unlock(&dev->io_mutex);
-		kref_put(&dev->kref, skel_delete);
-		goto exit;
-	} */
-	/* prevent the device from being autosuspended */
+	retval = usb_autopm_get_interface(interface);
+	if (retval)
+		goto out_err;
 
 	/* save our object in the file's private structure */
 	file->private_data = dev;
+
+out_err:
 	mutex_unlock(&dev->io_mutex);
+	if (retval)
+		kref_put(&dev->kref, skel_delete);
 
 exit:
 	return retval;
@@ -148,7 +147,7 @@ static int skel_release(struct inode *inode, struct file *file)
 
 	/* allow the device to be autosuspended */
 	mutex_lock(&dev->io_mutex);
-	if (!--dev->open_count && dev->interface)
+	if (dev->interface)
 		usb_autopm_put_interface(dev->interface);
 	mutex_unlock(&dev->io_mutex);
 
@@ -612,7 +611,6 @@ static void skel_disconnect(struct usb_interface *interface)
 	int minor = interface->minor;
 
 	dev = usb_get_intfdata(interface);
-	usb_set_intfdata(interface, NULL);
 
 	/* give back our minor */
 	usb_deregister_dev(interface, &skel_class);
@@ -624,8 +622,12 @@ static void skel_disconnect(struct usb_interface *interface)
 
 	usb_kill_anchored_urbs(&dev->submitted);
 
+	mutex_lock(&skel_mutex);
+	usb_set_intfdata(interface, NULL);
+
 	/* decrement our usage count */
 	kref_put(&dev->kref, skel_delete);
+	mutex_unlock(&skel_mutex);
 
 	dev_info(&interface->dev, "USB Skeleton #%d now disconnected", minor);
 }
diff --git a/drivers/usb/wusbcore/Kconfig b/drivers/usb/wusbcore/Kconfig
index eb09a0a14a80..0ead8826ec79 100644
--- a/drivers/usb/wusbcore/Kconfig
+++ b/drivers/usb/wusbcore/Kconfig
@@ -5,6 +5,7 @@ config USB_WUSB
 	tristate "Enable Wireless USB extensions (EXPERIMENTAL)"
 	depends on EXPERIMENTAL
 	depends on USB
+	depends on PCI
         select UWB
         select CRYPTO
         select CRYPTO_BLKCIPHER
diff --git a/drivers/usb/wusbcore/security.c b/drivers/usb/wusbcore/security.c
index 371f61733f05..fa810a83e830 100644
--- a/drivers/usb/wusbcore/security.c
+++ b/drivers/usb/wusbcore/security.c
@@ -354,7 +354,7 @@ int wusb_dev_4way_handshake(struct wusbhc *wusbhc, struct wusb_dev *wusb_dev,
 	struct wusb_keydvt_in keydvt_in;
 	struct wusb_keydvt_out keydvt_out;
 
-	hs = kzalloc(3*sizeof(hs[0]), GFP_KERNEL);
+	hs = kcalloc(3, sizeof(hs[0]), GFP_KERNEL);
 	if (hs == NULL) {
 		dev_err(dev, "can't allocate handshake data\n");
 		goto error_kzalloc;
diff --git a/drivers/uwb/est.c b/drivers/uwb/est.c
index de81ebf51784..86ed7e61e597 100644
--- a/drivers/uwb/est.c
+++ b/drivers/uwb/est.c
@@ -184,7 +184,7 @@ int uwb_est_create(void)
 
 	uwb_est_size = 2;
 	uwb_est_used = 0;
-	uwb_est = kzalloc(uwb_est_size * sizeof(uwb_est[0]), GFP_KERNEL);
+	uwb_est = kcalloc(uwb_est_size, sizeof(uwb_est[0]), GFP_KERNEL);
 	if (uwb_est == NULL)
 		return -ENOMEM;
 
diff --git a/drivers/video/backlight/88pm860x_bl.c b/drivers/video/backlight/88pm860x_bl.c
index 1105fa1ed7f4..a1376dc73d71 100644
--- a/drivers/video/backlight/88pm860x_bl.c
+++ b/drivers/video/backlight/88pm860x_bl.c
@@ -270,17 +270,7 @@ static struct platform_driver pm860x_backlight_driver = {
 	.remove		= pm860x_backlight_remove,
 };
 
-static int __init pm860x_backlight_init(void)
-{
-	return platform_driver_register(&pm860x_backlight_driver);
-}
-module_init(pm860x_backlight_init);
-
-static void __exit pm860x_backlight_exit(void)
-{
-	platform_driver_unregister(&pm860x_backlight_driver);
-}
-module_exit(pm860x_backlight_exit);
+module_platform_driver(pm860x_backlight_driver);
 
 MODULE_DESCRIPTION("Backlight Driver for Marvell Semiconductor 88PM8606");
 MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index 278aeaa92505..681b36929fe4 100644
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -280,14 +280,6 @@ config BACKLIGHT_WM831X
 	  If you have a backlight driven by the ISINK and DCDC of a
 	  WM831x PMIC say y to enable the backlight driver for it.
 
-config BACKLIGHT_ADX
-	tristate "Avionic Design Xanthos Backlight Driver"
-	depends on ARCH_PXA_ADX
-	default y
-	help
-	  Say Y to enable the backlight driver on Avionic Design Xanthos-based
-	  boards.
-
 config BACKLIGHT_ADP5520
 	tristate "Backlight Driver for ADP5520/ADP5501 using WLED"
 	depends on PMIC_ADP5520
diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile
index fdd1fc4b2770..af5cf654ec7c 100644
--- a/drivers/video/backlight/Makefile
+++ b/drivers/video/backlight/Makefile
@@ -32,7 +32,6 @@ obj-$(CONFIG_BACKLIGHT_APPLE)	+= apple_bl.o
 obj-$(CONFIG_BACKLIGHT_TOSA)	+= tosa_bl.o
 obj-$(CONFIG_BACKLIGHT_SAHARA)	+= kb3886_bl.o
 obj-$(CONFIG_BACKLIGHT_WM831X)	+= wm831x_bl.o
-obj-$(CONFIG_BACKLIGHT_ADX)    += adx_bl.o
 obj-$(CONFIG_BACKLIGHT_ADP5520)	+= adp5520_bl.o
 obj-$(CONFIG_BACKLIGHT_ADP8860)	+= adp8860_bl.o
 obj-$(CONFIG_BACKLIGHT_ADP8870)	+= adp8870_bl.o
diff --git a/drivers/video/backlight/adp5520_bl.c b/drivers/video/backlight/adp5520_bl.c
index dfb763e9147f..2e630bf1164c 100644
--- a/drivers/video/backlight/adp5520_bl.c
+++ b/drivers/video/backlight/adp5520_bl.c
@@ -384,17 +384,7 @@ static struct platform_driver adp5520_bl_driver = {
 	.resume		= adp5520_bl_resume,
 };
 
-static int __init adp5520_bl_init(void)
-{
-	return platform_driver_register(&adp5520_bl_driver);
-}
-module_init(adp5520_bl_init);
-
-static void __exit adp5520_bl_exit(void)
-{
-	platform_driver_unregister(&adp5520_bl_driver);
-}
-module_exit(adp5520_bl_exit);
+module_platform_driver(adp5520_bl_driver);
 
 MODULE_AUTHOR("Michael Hennerich <hennerich@blackfin.uclinux.org>");
 MODULE_DESCRIPTION("ADP5520(01) Backlight Driver");
diff --git a/drivers/video/backlight/adx_bl.c b/drivers/video/backlight/adx_bl.c
deleted file mode 100644
index c861c41af442..000000000000
--- a/drivers/video/backlight/adx_bl.c
+++ /dev/null
@@ -1,182 +0,0 @@
-/*
- * linux/drivers/video/backlight/adx.c
- *
- * Copyright (C) 2009 Avionic Design GmbH
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * Written by Thierry Reding <thierry.reding@avionic-design.de>
- */
-
-#include <linux/backlight.h>
-#include <linux/fb.h>
-#include <linux/gfp.h>
-#include <linux/io.h>
-#include <linux/module.h>
-#include <linux/platform_device.h>
-
-/* register definitions */
-#define ADX_BACKLIGHT_CONTROL		0x00
-#define ADX_BACKLIGHT_CONTROL_ENABLE	(1 << 0)
-#define ADX_BACKLIGHT_BRIGHTNESS	0x08
-#define ADX_BACKLIGHT_STATUS		0x10
-#define ADX_BACKLIGHT_ERROR		0x18
-
-struct adxbl {
-	void __iomem *base;
-};
-
-static int adx_backlight_update_status(struct backlight_device *bldev)
-{
-	struct adxbl *bl = bl_get_data(bldev);
-	u32 value;
-
-	value = bldev->props.brightness;
-	writel(value, bl->base + ADX_BACKLIGHT_BRIGHTNESS);
-
-	value = readl(bl->base + ADX_BACKLIGHT_CONTROL);
-
-	if (bldev->props.state & BL_CORE_FBBLANK)
-		value &= ~ADX_BACKLIGHT_CONTROL_ENABLE;
-	else
-		value |= ADX_BACKLIGHT_CONTROL_ENABLE;
-
-	writel(value, bl->base + ADX_BACKLIGHT_CONTROL);
-
-	return 0;
-}
-
-static int adx_backlight_get_brightness(struct backlight_device *bldev)
-{
-	struct adxbl *bl = bl_get_data(bldev);
-	u32 brightness;
-
-	brightness = readl(bl->base + ADX_BACKLIGHT_BRIGHTNESS);
-	return brightness & 0xff;
-}
-
-static int adx_backlight_check_fb(struct backlight_device *bldev, struct fb_info *fb)
-{
-	return 1;
-}
-
-static const struct backlight_ops adx_backlight_ops = {
-	.options = 0,
-	.update_status = adx_backlight_update_status,
-	.get_brightness = adx_backlight_get_brightness,
-	.check_fb = adx_backlight_check_fb,
-};
-
-static int __devinit adx_backlight_probe(struct platform_device *pdev)
-{
-	struct backlight_properties props;
-	struct backlight_device *bldev;
-	struct resource *res;
-	struct adxbl *bl;
-	int ret = 0;
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		ret = -ENXIO;
-		goto out;
-	}
-
-	res = devm_request_mem_region(&pdev->dev, res->start,
-			resource_size(res), res->name);
-	if (!res) {
-		ret = -ENXIO;
-		goto out;
-	}
-
-	bl = devm_kzalloc(&pdev->dev, sizeof(*bl), GFP_KERNEL);
-	if (!bl) {
-		ret = -ENOMEM;
-		goto out;
-	}
-
-	bl->base = devm_ioremap_nocache(&pdev->dev, res->start,
-			resource_size(res));
-	if (!bl->base) {
-		ret = -ENXIO;
-		goto out;
-	}
-
-	memset(&props, 0, sizeof(struct backlight_properties));
-	props.type = BACKLIGHT_RAW;
-	props.max_brightness = 0xff;
-	bldev = backlight_device_register(dev_name(&pdev->dev), &pdev->dev,
-					  bl, &adx_backlight_ops, &props);
-	if (IS_ERR(bldev)) {
-		ret = PTR_ERR(bldev);
-		goto out;
-	}
-
-	bldev->props.brightness = 0xff;
-	bldev->props.power = FB_BLANK_UNBLANK;
-
-	platform_set_drvdata(pdev, bldev);
-
-out:
-	return ret;
-}
-
-static int __devexit adx_backlight_remove(struct platform_device *pdev)
-{
-	struct backlight_device *bldev;
-	int ret = 0;
-
-	bldev = platform_get_drvdata(pdev);
-	bldev->props.power = FB_BLANK_UNBLANK;
-	bldev->props.brightness = 0xff;
-	backlight_update_status(bldev);
-	backlight_device_unregister(bldev);
-	platform_set_drvdata(pdev, NULL);
-
-	return ret;
-}
-
-#ifdef CONFIG_PM
-static int adx_backlight_suspend(struct platform_device *pdev,
-		pm_message_t state)
-{
-	return 0;
-}
-
-static int adx_backlight_resume(struct platform_device *pdev)
-{
-	return 0;
-}
-#else
-#define adx_backlight_suspend NULL
-#define adx_backlight_resume NULL
-#endif
-
-static struct platform_driver adx_backlight_driver = {
-	.probe = adx_backlight_probe,
-	.remove = __devexit_p(adx_backlight_remove),
-	.suspend = adx_backlight_suspend,
-	.resume = adx_backlight_resume,
-	.driver = {
-		.name = "adx-backlight",
-		.owner = THIS_MODULE,
-	},
-};
-
-static int __init adx_backlight_init(void)
-{
-	return platform_driver_register(&adx_backlight_driver);
-}
-
-static void __exit adx_backlight_exit(void)
-{
-	platform_driver_unregister(&adx_backlight_driver);
-}
-
-module_init(adx_backlight_init);
-module_exit(adx_backlight_exit);
-
-MODULE_AUTHOR("Thierry Reding <thierry.reding@avionic-design.de>");
-MODULE_DESCRIPTION("Avionic Design Xanthos Backlight Driver");
-MODULE_LICENSE("GPL v2");
diff --git a/drivers/video/backlight/backlight.c b/drivers/video/backlight/backlight.c
index 7363c1b169e8..bf5b1ece7160 100644
--- a/drivers/video/backlight/backlight.c
+++ b/drivers/video/backlight/backlight.c
@@ -102,7 +102,7 @@ static void backlight_generate_event(struct backlight_device *bd,
 }
 
 static ssize_t backlight_show_power(struct device *dev,
-		struct device_attribute *attr,char *buf)
+		struct device_attribute *attr, char *buf)
 {
 	struct backlight_device *bd = to_backlight_device(dev);
 
@@ -116,7 +116,7 @@ static ssize_t backlight_store_power(struct device *dev,
 	struct backlight_device *bd = to_backlight_device(dev);
 	unsigned long power;
 
-	rc = strict_strtoul(buf, 0, &power);
+	rc = kstrtoul(buf, 0, &power);
 	if (rc)
 		return rc;
 
@@ -150,7 +150,7 @@ static ssize_t backlight_store_brightness(struct device *dev,
 	struct backlight_device *bd = to_backlight_device(dev);
 	unsigned long brightness;
 
-	rc = strict_strtoul(buf, 0, &brightness);
+	rc = kstrtoul(buf, 0, &brightness);
 	if (rc)
 		return rc;
 
diff --git a/drivers/video/backlight/da903x_bl.c b/drivers/video/backlight/da903x_bl.c
index d68f14bbb687..abb4a06268f1 100644
--- a/drivers/video/backlight/da903x_bl.c
+++ b/drivers/video/backlight/da903x_bl.c
@@ -199,17 +199,7 @@ static struct platform_driver da903x_backlight_driver = {
 	.remove		= da903x_backlight_remove,
 };
 
-static int __init da903x_backlight_init(void)
-{
-	return platform_driver_register(&da903x_backlight_driver);
-}
-module_init(da903x_backlight_init);
-
-static void __exit da903x_backlight_exit(void)
-{
-	platform_driver_unregister(&da903x_backlight_driver);
-}
-module_exit(da903x_backlight_exit);
+module_platform_driver(da903x_backlight_driver);
 
 MODULE_DESCRIPTION("Backlight Driver for Dialog Semiconductor DA9030/DA9034");
 MODULE_AUTHOR("Eric Miao <eric.miao@marvell.com>"
diff --git a/drivers/video/backlight/ep93xx_bl.c b/drivers/video/backlight/ep93xx_bl.c
index c74a6f4baa12..b62b8b9063b5 100644
--- a/drivers/video/backlight/ep93xx_bl.c
+++ b/drivers/video/backlight/ep93xx_bl.c
@@ -13,7 +13,6 @@
 
 #include <linux/module.h>
 #include <linux/platform_device.h>
-#include <linux/module.h>
 #include <linux/io.h>
 #include <linux/fb.h>
 #include <linux/backlight.h>
@@ -144,17 +143,7 @@ static struct platform_driver ep93xxbl_driver = {
 	.resume		= ep93xxbl_resume,
 };
 
-static int __init ep93xxbl_init(void)
-{
-	return platform_driver_register(&ep93xxbl_driver);
-}
-module_init(ep93xxbl_init);
-
-static void __exit ep93xxbl_exit(void)
-{
-	platform_driver_unregister(&ep93xxbl_driver);
-}
-module_exit(ep93xxbl_exit);
+module_platform_driver(ep93xxbl_driver);
 
 MODULE_DESCRIPTION("EP93xx Backlight Driver");
 MODULE_AUTHOR("H Hartley Sweeten <hsweeten@visionengravers.com>");
diff --git a/drivers/video/backlight/generic_bl.c b/drivers/video/backlight/generic_bl.c
index adb191466d64..9ce6170c1860 100644
--- a/drivers/video/backlight/generic_bl.c
+++ b/drivers/video/backlight/generic_bl.c
@@ -132,18 +132,7 @@ static struct platform_driver genericbl_driver = {
 	},
 };
 
-static int __init genericbl_init(void)
-{
-	return platform_driver_register(&genericbl_driver);
-}
-
-static void __exit genericbl_exit(void)
-{
-	platform_driver_unregister(&genericbl_driver);
-}
-
-module_init(genericbl_init);
-module_exit(genericbl_exit);
+module_platform_driver(genericbl_driver);
 
 MODULE_AUTHOR("Richard Purdie <rpurdie@rpsys.net>");
 MODULE_DESCRIPTION("Generic Backlight Driver");
diff --git a/drivers/video/backlight/jornada720_bl.c b/drivers/video/backlight/jornada720_bl.c
index de65d80159be..2f8af5d786ab 100644
--- a/drivers/video/backlight/jornada720_bl.c
+++ b/drivers/video/backlight/jornada720_bl.c
@@ -147,19 +147,8 @@ static struct platform_driver jornada_bl_driver = {
 	},
 };
 
-static int __init jornada_bl_init(void)
-{
-	return platform_driver_register(&jornada_bl_driver);
-}
-
-static void __exit jornada_bl_exit(void)
-{
-	platform_driver_unregister(&jornada_bl_driver);
-}
+module_platform_driver(jornada_bl_driver);
 
 MODULE_AUTHOR("Kristoffer Ericson <kristoffer.ericson>");
 MODULE_DESCRIPTION("HP Jornada 710/720/728 Backlight driver");
 MODULE_LICENSE("GPL");
-
-module_init(jornada_bl_init);
-module_exit(jornada_bl_exit);
diff --git a/drivers/video/backlight/jornada720_lcd.c b/drivers/video/backlight/jornada720_lcd.c
index d2ff658b4144..22d231a17e3c 100644
--- a/drivers/video/backlight/jornada720_lcd.c
+++ b/drivers/video/backlight/jornada720_lcd.c
@@ -135,19 +135,8 @@ static struct platform_driver jornada_lcd_driver = {
 	},
 };
 
-static int __init jornada_lcd_init(void)
-{
-	return platform_driver_register(&jornada_lcd_driver);
-}
-
-static void __exit jornada_lcd_exit(void)
-{
-	platform_driver_unregister(&jornada_lcd_driver);
-}
+module_platform_driver(jornada_lcd_driver);
 
 MODULE_AUTHOR("Kristoffer Ericson <kristoffer.ericson@gmail.com>");
 MODULE_DESCRIPTION("HP Jornada 710/720/728 LCD driver");
 MODULE_LICENSE("GPL");
-
-module_init(jornada_lcd_init);
-module_exit(jornada_lcd_exit);
diff --git a/drivers/video/backlight/lcd.c b/drivers/video/backlight/lcd.c
index 71a11cadffc4..79c1b0d609a8 100644
--- a/drivers/video/backlight/lcd.c
+++ b/drivers/video/backlight/lcd.c
@@ -97,19 +97,16 @@ static ssize_t lcd_store_power(struct device *dev,
 		struct device_attribute *attr, const char *buf, size_t count)
 {
 	int rc = -ENXIO;
-	char *endp;
 	struct lcd_device *ld = to_lcd_device(dev);
-	int power = simple_strtoul(buf, &endp, 0);
-	size_t size = endp - buf;
+	unsigned long power;
 
-	if (isspace(*endp))
-		size++;
-	if (size != count)
-		return -EINVAL;
+	rc = kstrtoul(buf, 0, &power);
+	if (rc)
+		return rc;
 
 	mutex_lock(&ld->ops_lock);
 	if (ld->ops && ld->ops->set_power) {
-		pr_debug("lcd: set power to %d\n", power);
+		pr_debug("lcd: set power to %lu\n", power);
 		ld->ops->set_power(ld, power);
 		rc = count;
 	}
@@ -136,19 +133,16 @@ static ssize_t lcd_store_contrast(struct device *dev,
 		struct device_attribute *attr, const char *buf, size_t count)
 {
 	int rc = -ENXIO;
-	char *endp;
 	struct lcd_device *ld = to_lcd_device(dev);
-	int contrast = simple_strtoul(buf, &endp, 0);
-	size_t size = endp - buf;
+	unsigned long contrast;
 
-	if (isspace(*endp))
-		size++;
-	if (size != count)
-		return -EINVAL;
+	rc = kstrtoul(buf, 0, &contrast);
+	if (rc)
+		return rc;
 
 	mutex_lock(&ld->ops_lock);
 	if (ld->ops && ld->ops->set_contrast) {
-		pr_debug("lcd: set contrast to %d\n", contrast);
+		pr_debug("lcd: set contrast to %lu\n", contrast);
 		ld->ops->set_contrast(ld, contrast);
 		rc = count;
 	}
diff --git a/drivers/video/backlight/ld9040.c b/drivers/video/backlight/ld9040.c
index da9a5ce0ccb8..78dafc0c8fc5 100644
--- a/drivers/video/backlight/ld9040.c
+++ b/drivers/video/backlight/ld9040.c
@@ -31,6 +31,7 @@
 #include <linux/lcd.h>
 #include <linux/backlight.h>
 #include <linux/module.h>
+#include <linux/regulator/consumer.h>
 
 #include "ld9040_gamma.h"
 
@@ -53,8 +54,51 @@ struct ld9040 {
 	struct lcd_device		*ld;
 	struct backlight_device		*bd;
 	struct lcd_platform_data	*lcd_pd;
+
+	struct mutex			lock;
+	bool  enabled;
+};
+
+static struct regulator_bulk_data supplies[] = {
+	{ .supply = "vdd3", },
+	{ .supply = "vci", },
 };
 
+static void ld9040_regulator_enable(struct ld9040 *lcd)
+{
+	int ret = 0;
+	struct lcd_platform_data *pd = NULL;
+
+	pd = lcd->lcd_pd;
+	mutex_lock(&lcd->lock);
+	if (!lcd->enabled) {
+		ret = regulator_bulk_enable(ARRAY_SIZE(supplies), supplies);
+		if (ret)
+			goto out;
+
+		lcd->enabled = true;
+	}
+	mdelay(pd->power_on_delay);
+out:
+	mutex_unlock(&lcd->lock);
+}
+
+static void ld9040_regulator_disable(struct ld9040 *lcd)
+{
+	int ret = 0;
+
+	mutex_lock(&lcd->lock);
+	if (lcd->enabled) {
+		ret = regulator_bulk_disable(ARRAY_SIZE(supplies), supplies);
+		if (ret)
+			goto out;
+
+		lcd->enabled = false;
+	}
+out:
+	mutex_unlock(&lcd->lock);
+}
+
 static const unsigned short seq_swreset[] = {
 	0x01, COMMAND_ONLY,
 	ENDDEF, 0x00
@@ -532,13 +576,8 @@ static int ld9040_power_on(struct ld9040 *lcd)
 		return -EFAULT;
 	}
 
-	if (!pd->power_on) {
-		dev_err(lcd->dev, "power_on is NULL.\n");
-		return -EFAULT;
-	} else {
-		pd->power_on(lcd->ld, 1);
-		mdelay(pd->power_on_delay);
-	}
+	/* lcd power on */
+	ld9040_regulator_enable(lcd);
 
 	if (!pd->reset) {
 		dev_err(lcd->dev, "reset is NULL.\n");
@@ -582,11 +621,8 @@ static int ld9040_power_off(struct ld9040 *lcd)
 
 	mdelay(pd->power_off_delay);
 
-	if (!pd->power_on) {
-		dev_err(lcd->dev, "power_on is NULL.\n");
-		return -EFAULT;
-	} else
-		pd->power_on(lcd->ld, 0);
+	/* lcd power off */
+	ld9040_regulator_disable(lcd);
 
 	return 0;
 }
@@ -693,6 +729,14 @@ static int ld9040_probe(struct spi_device *spi)
 		goto out_free_lcd;
 	}
 
+	mutex_init(&lcd->lock);
+
+	ret = regulator_bulk_get(lcd->dev, ARRAY_SIZE(supplies), supplies);
+	if (ret) {
+		dev_err(lcd->dev, "Failed to get regulators: %d\n", ret);
+		goto out_free_lcd;
+	}
+
 	ld = lcd_device_register("ld9040", &spi->dev, lcd, &ld9040_lcd_ops);
 	if (IS_ERR(ld)) {
 		ret = PTR_ERR(ld);
@@ -739,6 +783,8 @@ static int ld9040_probe(struct spi_device *spi)
 out_unregister_lcd:
 	lcd_device_unregister(lcd->ld);
 out_free_lcd:
+	regulator_bulk_free(ARRAY_SIZE(supplies), supplies);
+
 	kfree(lcd);
 	return ret;
 }
@@ -750,6 +796,7 @@ static int __devexit ld9040_remove(struct spi_device *spi)
 	ld9040_power(lcd, FB_BLANK_POWERDOWN);
 	backlight_device_unregister(lcd->bd);
 	lcd_device_unregister(lcd->ld);
+	regulator_bulk_free(ARRAY_SIZE(supplies), supplies);
 	kfree(lcd);
 
 	return 0;
diff --git a/drivers/video/backlight/max8925_bl.c b/drivers/video/backlight/max8925_bl.c
index 7bbc802560ea..c915e3b53886 100644
--- a/drivers/video/backlight/max8925_bl.c
+++ b/drivers/video/backlight/max8925_bl.c
@@ -188,17 +188,7 @@ static struct platform_driver max8925_backlight_driver = {
 	.remove		= __devexit_p(max8925_backlight_remove),
 };
 
-static int __init max8925_backlight_init(void)
-{
-	return platform_driver_register(&max8925_backlight_driver);
-}
-module_init(max8925_backlight_init);
-
-static void __exit max8925_backlight_exit(void)
-{
-	platform_driver_unregister(&max8925_backlight_driver);
-};
-module_exit(max8925_backlight_exit);
+module_platform_driver(max8925_backlight_driver);
 
 MODULE_DESCRIPTION("Backlight Driver for Maxim MAX8925");
 MODULE_AUTHOR("Haojian Zhuang <haojian.zhuang@marvell.com>");
diff --git a/drivers/video/backlight/omap1_bl.c b/drivers/video/backlight/omap1_bl.c
index 08d26a72394c..d8cde277ec83 100644
--- a/drivers/video/backlight/omap1_bl.c
+++ b/drivers/video/backlight/omap1_bl.c
@@ -195,18 +195,7 @@ static struct platform_driver omapbl_driver = {
 	},
 };
 
-static int __init omapbl_init(void)
-{
-	return platform_driver_register(&omapbl_driver);
-}
-
-static void __exit omapbl_exit(void)
-{
-	platform_driver_unregister(&omapbl_driver);
-}
-
-module_init(omapbl_init);
-module_exit(omapbl_exit);
+module_platform_driver(omapbl_driver);
 
 MODULE_AUTHOR("Andrzej Zaborowski <balrog@zabor.org>");
 MODULE_DESCRIPTION("OMAP LCD Backlight driver");
diff --git a/drivers/video/backlight/pcf50633-backlight.c b/drivers/video/backlight/pcf50633-backlight.c
index ef5628d60563..13e88b71daec 100644
--- a/drivers/video/backlight/pcf50633-backlight.c
+++ b/drivers/video/backlight/pcf50633-backlight.c
@@ -173,17 +173,7 @@ static struct platform_driver pcf50633_bl_driver = {
 	},
 };
 
-static int __init pcf50633_bl_init(void)
-{
-	return platform_driver_register(&pcf50633_bl_driver);
-}
-module_init(pcf50633_bl_init);
-
-static void __exit pcf50633_bl_exit(void)
-{
-	platform_driver_unregister(&pcf50633_bl_driver);
-}
-module_exit(pcf50633_bl_exit);
+module_platform_driver(pcf50633_bl_driver);
 
 MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
 MODULE_DESCRIPTION("PCF50633 backlight driver");
diff --git a/drivers/video/backlight/platform_lcd.c b/drivers/video/backlight/platform_lcd.c
index 302330acf628..f0bf491ed087 100644
--- a/drivers/video/backlight/platform_lcd.c
+++ b/drivers/video/backlight/platform_lcd.c
@@ -85,7 +85,8 @@ static int __devinit platform_lcd_probe(struct platform_device *pdev)
 		return -EINVAL;
 	}
 
-	plcd = kzalloc(sizeof(struct platform_lcd), GFP_KERNEL);
+	plcd = devm_kzalloc(&pdev->dev, sizeof(struct platform_lcd),
+			    GFP_KERNEL);
 	if (!plcd) {
 		dev_err(dev, "no memory for state\n");
 		return -ENOMEM;
@@ -98,7 +99,7 @@ static int __devinit platform_lcd_probe(struct platform_device *pdev)
 	if (IS_ERR(plcd->lcd)) {
 		dev_err(dev, "cannot register lcd device\n");
 		err = PTR_ERR(plcd->lcd);
-		goto err_mem;
+		goto err;
 	}
 
 	platform_set_drvdata(pdev, plcd);
@@ -106,8 +107,7 @@ static int __devinit platform_lcd_probe(struct platform_device *pdev)
 
 	return 0;
 
- err_mem:
-	kfree(plcd);
+ err:
 	return err;
 }
 
@@ -116,7 +116,6 @@ static int __devexit platform_lcd_remove(struct platform_device *pdev)
 	struct platform_lcd *plcd = platform_get_drvdata(pdev);
 
 	lcd_device_unregister(plcd->lcd);
-	kfree(plcd);
 
 	return 0;
 }
@@ -157,18 +156,7 @@ static struct platform_driver platform_lcd_driver = {
 	.resume         = platform_lcd_resume,
 };
 
-static int __init platform_lcd_init(void)
-{
-	return platform_driver_register(&platform_lcd_driver);
-}
-
-static void __exit platform_lcd_cleanup(void)
-{
-	platform_driver_unregister(&platform_lcd_driver);
-}
-
-module_init(platform_lcd_init);
-module_exit(platform_lcd_cleanup);
+module_platform_driver(platform_lcd_driver);
 
 MODULE_AUTHOR("Ben Dooks <ben-linux@fluff.org>");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/video/backlight/pwm_bl.c b/drivers/video/backlight/pwm_bl.c
index 8b5b2a4124c7..7496d04e1d3c 100644
--- a/drivers/video/backlight/pwm_bl.c
+++ b/drivers/video/backlight/pwm_bl.c
@@ -169,10 +169,9 @@ static int pwm_backlight_remove(struct platform_device *pdev)
 }
 
 #ifdef CONFIG_PM
-static int pwm_backlight_suspend(struct platform_device *pdev,
-				 pm_message_t state)
+static int pwm_backlight_suspend(struct device *dev)
 {
-	struct backlight_device *bl = platform_get_drvdata(pdev);
+	struct backlight_device *bl = dev_get_drvdata(dev);
 	struct pwm_bl_data *pb = dev_get_drvdata(&bl->dev);
 
 	if (pb->notify)
@@ -184,40 +183,32 @@ static int pwm_backlight_suspend(struct platform_device *pdev,
 	return 0;
 }
 
-static int pwm_backlight_resume(struct platform_device *pdev)
+static int pwm_backlight_resume(struct device *dev)
 {
-	struct backlight_device *bl = platform_get_drvdata(pdev);
+	struct backlight_device *bl = dev_get_drvdata(dev);
 
 	backlight_update_status(bl);
 	return 0;
 }
-#else
-#define pwm_backlight_suspend	NULL
-#define pwm_backlight_resume	NULL
+
+static SIMPLE_DEV_PM_OPS(pwm_backlight_pm_ops, pwm_backlight_suspend,
+			 pwm_backlight_resume);
+
 #endif
 
 static struct platform_driver pwm_backlight_driver = {
 	.driver		= {
 		.name	= "pwm-backlight",
 		.owner	= THIS_MODULE,
+#ifdef CONFIG_PM
+		.pm	= &pwm_backlight_pm_ops,
+#endif
 	},
 	.probe		= pwm_backlight_probe,
 	.remove		= pwm_backlight_remove,
-	.suspend	= pwm_backlight_suspend,
-	.resume		= pwm_backlight_resume,
 };
 
-static int __init pwm_backlight_init(void)
-{
-	return platform_driver_register(&pwm_backlight_driver);
-}
-module_init(pwm_backlight_init);
-
-static void __exit pwm_backlight_exit(void)
-{
-	platform_driver_unregister(&pwm_backlight_driver);
-}
-module_exit(pwm_backlight_exit);
+module_platform_driver(pwm_backlight_driver);
 
 MODULE_DESCRIPTION("PWM based Backlight Driver");
 MODULE_LICENSE("GPL");
diff --git a/drivers/video/backlight/wm831x_bl.c b/drivers/video/backlight/wm831x_bl.c
index fbe9e9316f3b..4e915f5eca99 100644
--- a/drivers/video/backlight/wm831x_bl.c
+++ b/drivers/video/backlight/wm831x_bl.c
@@ -236,17 +236,7 @@ static struct platform_driver wm831x_backlight_driver = {
 	.remove		= wm831x_backlight_remove,
 };
 
-static int __init wm831x_backlight_init(void)
-{
-	return platform_driver_register(&wm831x_backlight_driver);
-}
-module_init(wm831x_backlight_init);
-
-static void __exit wm831x_backlight_exit(void)
-{
-	platform_driver_unregister(&wm831x_backlight_driver);
-}
-module_exit(wm831x_backlight_exit);
+module_platform_driver(wm831x_backlight_driver);
 
 MODULE_DESCRIPTION("Backlight Driver for WM831x PMICs");
 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com");
diff --git a/drivers/video/mxsfb.c b/drivers/video/mxsfb.c
index d837d63c456f..eb3c5eea1a0f 100644
--- a/drivers/video/mxsfb.c
+++ b/drivers/video/mxsfb.c
@@ -328,7 +328,7 @@ static void mxsfb_enable_controller(struct fb_info *fb_info)
 
 	dev_dbg(&host->pdev->dev, "%s\n", __func__);
 
-	clk_enable(host->clk);
+	clk_prepare_enable(host->clk);
 	clk_set_rate(host->clk, PICOS2KHZ(fb_info->var.pixclock) * 1000U);
 
 	/* if it was disabled, re-enable the mode again */
@@ -368,7 +368,7 @@ static void mxsfb_disable_controller(struct fb_info *fb_info)
 
 	writel(VDCTRL4_SYNC_SIGNALS_ON, host->base + LCDC_VDCTRL4 + REG_CLR);
 
-	clk_disable(host->clk);
+	clk_disable_unprepare(host->clk);
 
 	host->enabled = 0;
 }
@@ -668,7 +668,7 @@ static int __devinit mxsfb_restore_mode(struct mxsfb_info *host)
 	line_count = fb_info->fix.smem_len / fb_info->fix.line_length;
 	fb_info->fix.ypanstep = 1;
 
-	clk_enable(host->clk);
+	clk_prepare_enable(host->clk);
 	host->enabled = 1;
 
 	return 0;
@@ -841,7 +841,7 @@ static int __devinit mxsfb_probe(struct platform_device *pdev)
 
 error_register:
 	if (host->enabled)
-		clk_disable(host->clk);
+		clk_disable_unprepare(host->clk);
 	fb_destroy_modelist(&fb_info->modelist);
 error_init_fb:
 	kfree(fb_info->pseudo_palette);
diff --git a/drivers/video/omap2/omapfb/Kconfig b/drivers/video/omap2/omapfb/Kconfig
index 83d3fe7ec9ae..4ea17dc3258c 100644
--- a/drivers/video/omap2/omapfb/Kconfig
+++ b/drivers/video/omap2/omapfb/Kconfig
@@ -1,6 +1,6 @@
 menuconfig FB_OMAP2
         tristate "OMAP2+ frame buffer support"
-        depends on FB && OMAP2_DSS
+        depends on FB && OMAP2_DSS && !DRM_OMAP
 
 	select OMAP2_VRAM
 	select OMAP2_VRFB if ARCH_OMAP2 || ARCH_OMAP3
diff --git a/drivers/video/xen-fbfront.c b/drivers/video/xen-fbfront.c
index beac52fc1c0e..cb4529c40d74 100644
--- a/drivers/video/xen-fbfront.c
+++ b/drivers/video/xen-fbfront.c
@@ -671,20 +671,17 @@ InitWait:
 	}
 }
 
-static struct xenbus_device_id xenfb_ids[] = {
+static const struct xenbus_device_id xenfb_ids[] = {
 	{ "vfb" },
 	{ "" }
 };
 
-static struct xenbus_driver xenfb_driver = {
-	.name = "vfb",
-	.owner = THIS_MODULE,
-	.ids = xenfb_ids,
+static DEFINE_XENBUS_DRIVER(xenfb, ,
 	.probe = xenfb_probe,
 	.remove = xenfb_remove,
 	.resume = xenfb_resume,
 	.otherend_changed = xenfb_backend_changed,
-};
+);
 
 static int __init xenfb_init(void)
 {
diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
index 79fd606b7cd5..877b107f77a7 100644
--- a/drivers/watchdog/Kconfig
+++ b/drivers/watchdog/Kconfig
@@ -772,6 +772,19 @@ config SMSC37B787_WDT
 
 	  Most people will say N.
 
+config VIA_WDT
+	tristate "VIA Watchdog Timer"
+	depends on X86
+	select WATCHDOG_CORE
+	---help---
+	This is the driver for the hardware watchdog timer on VIA
+	southbridge chipset CX700, VX800/VX820 or VX855/VX875.
+
+	To compile this driver as a module, choose M here; the module
+	will be called via_wdt.
+
+	Most people will say N.
+
 config W83627HF_WDT
 	tristate "W83627HF/W83627DHG Watchdog Timer"
 	depends on X86
diff --git a/drivers/watchdog/Makefile b/drivers/watchdog/Makefile
index fe893e91935b..e8f479a16402 100644
--- a/drivers/watchdog/Makefile
+++ b/drivers/watchdog/Makefile
@@ -99,6 +99,7 @@ obj-$(CONFIG_SBC7240_WDT) += sbc7240_wdt.o
 obj-$(CONFIG_CPU5_WDT) += cpu5wdt.o
 obj-$(CONFIG_SMSC_SCH311X_WDT) += sch311x_wdt.o
 obj-$(CONFIG_SMSC37B787_WDT) += smsc37b787_wdt.o
+obj-$(CONFIG_VIA_WDT) += via_wdt.o
 obj-$(CONFIG_W83627HF_WDT) += w83627hf_wdt.o
 obj-$(CONFIG_W83697HF_WDT) += w83697hf_wdt.o
 obj-$(CONFIG_W83697UG_WDT) += w83697ug_wdt.o
diff --git a/drivers/watchdog/ar7_wdt.c b/drivers/watchdog/ar7_wdt.c
index b29221783598..502773ad5acd 100644
--- a/drivers/watchdog/ar7_wdt.c
+++ b/drivers/watchdog/ar7_wdt.c
@@ -70,8 +70,8 @@ struct ar7_wdt {
 };
 
 static unsigned long wdt_is_open;
-static spinlock_t wdt_lock;
 static unsigned expect_close;
+static DEFINE_SPINLOCK(wdt_lock);
 
 /* XXX currently fixed, allows max margin ~68.72 secs */
 #define prescale_value 0xffff
@@ -280,8 +280,6 @@ static int __devinit ar7_wdt_probe(struct platform_device *pdev)
 {
 	int rc;
 
-	spin_lock_init(&wdt_lock);
-
 	ar7_regs_wdt =
 		platform_get_resource_byname(pdev, IORESOURCE_MEM, "regs");
 	if (!ar7_regs_wdt) {
@@ -355,15 +353,4 @@ static struct platform_driver ar7_wdt_driver = {
 	},
 };
 
-static int __init ar7_wdt_init(void)
-{
-	return platform_driver_register(&ar7_wdt_driver);
-}
-
-static void __exit ar7_wdt_cleanup(void)
-{
-	platform_driver_unregister(&ar7_wdt_driver);
-}
-
-module_init(ar7_wdt_init);
-module_exit(ar7_wdt_cleanup);
+module_platform_driver(ar7_wdt_driver);
diff --git a/drivers/watchdog/at91sam9_wdt.c b/drivers/watchdog/at91sam9_wdt.c
index 87445b2d72a7..00562566ef5f 100644
--- a/drivers/watchdog/at91sam9_wdt.c
+++ b/drivers/watchdog/at91sam9_wdt.c
@@ -35,6 +35,11 @@
 
 #define DRV_NAME "AT91SAM9 Watchdog"
 
+#define wdt_read(field) \
+	__raw_readl(at91wdt_private.base + field)
+#define wdt_write(field, val) \
+	__raw_writel((val), at91wdt_private.base + field)
+
 /* AT91SAM9 watchdog runs a 12bit counter @ 256Hz,
  * use this to convert a watchdog
  * value from/to milliseconds.
@@ -63,6 +68,7 @@ MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started "
 static void at91_ping(unsigned long data);
 
 static struct {
+	void __iomem *base;
 	unsigned long next_heartbeat;	/* the next_heartbeat for the timer */
 	unsigned long open;
 	char expect_close;
@@ -77,7 +83,7 @@ static struct {
  */
 static inline void at91_wdt_reset(void)
 {
-	at91_sys_write(AT91_WDT_CR, AT91_WDT_KEY | AT91_WDT_WDRSTT);
+	wdt_write(AT91_WDT_CR, AT91_WDT_KEY | AT91_WDT_WDRSTT);
 }
 
 /*
@@ -132,7 +138,7 @@ static int at91_wdt_settimeout(unsigned int timeout)
 	unsigned int mr;
 
 	/* Check if disabled */
-	mr = at91_sys_read(AT91_WDT_MR);
+	mr = wdt_read(AT91_WDT_MR);
 	if (mr & AT91_WDT_WDDIS) {
 		printk(KERN_ERR DRV_NAME": sorry, watchdog is disabled\n");
 		return -EIO;
@@ -149,7 +155,7 @@ static int at91_wdt_settimeout(unsigned int timeout)
 		| AT91_WDT_WDDBGHLT	/* disabled in debug mode */
 		| AT91_WDT_WDD		/* restart at any time */
 		| (timeout & AT91_WDT_WDV);  /* timer value */
-	at91_sys_write(AT91_WDT_MR, reg);
+	wdt_write(AT91_WDT_MR, reg);
 
 	return 0;
 }
@@ -248,12 +254,22 @@ static struct miscdevice at91wdt_miscdev = {
 
 static int __init at91wdt_probe(struct platform_device *pdev)
 {
+	struct resource	*r;
 	int res;
 
 	if (at91wdt_miscdev.parent)
 		return -EBUSY;
 	at91wdt_miscdev.parent = &pdev->dev;
 
+	r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!r)
+		return -ENODEV;
+	at91wdt_private.base = ioremap(r->start, resource_size(r));
+	if (!at91wdt_private.base) {
+		dev_err(&pdev->dev, "failed to map registers, aborting.\n");
+		return -ENOMEM;
+	}
+
 	/* Set watchdog */
 	res = at91_wdt_settimeout(ms_to_ticks(WDT_HW_TIMEOUT * 1000));
 	if (res)
diff --git a/drivers/watchdog/at91sam9_wdt.h b/drivers/watchdog/at91sam9_wdt.h
index 757f9cab5c82..c6fbb2e6c41b 100644
--- a/drivers/watchdog/at91sam9_wdt.h
+++ b/drivers/watchdog/at91sam9_wdt.h
@@ -16,11 +16,11 @@
 #ifndef AT91_WDT_H
 #define AT91_WDT_H
 
-#define AT91_WDT_CR		(AT91_WDT + 0x00)	/* Watchdog Control Register */
+#define AT91_WDT_CR		0x00			/* Watchdog Control Register */
 #define		AT91_WDT_WDRSTT		(1    << 0)		/* Restart */
 #define		AT91_WDT_KEY		(0xa5 << 24)		/* KEY Password */
 
-#define AT91_WDT_MR		(AT91_WDT + 0x04)	/* Watchdog Mode Register */
+#define AT91_WDT_MR		0x04			/* Watchdog Mode Register */
 #define		AT91_WDT_WDV		(0xfff << 0)		/* Counter Value */
 #define		AT91_WDT_WDFIEN		(1     << 12)		/* Fault Interrupt Enable */
 #define		AT91_WDT_WDRSTEN	(1     << 13)		/* Reset Processor */
@@ -30,7 +30,7 @@
 #define		AT91_WDT_WDDBGHLT	(1     << 28)		/* Debug Halt */
 #define		AT91_WDT_WDIDLEHLT	(1     << 29)		/* Idle Halt */
 
-#define AT91_WDT_SR		(AT91_WDT + 0x08)	/* Watchdog Status Register */
+#define AT91_WDT_SR		0x08			/* Watchdog Status Register */
 #define		AT91_WDT_WDUNF		(1 << 0)		/* Watchdog Underflow */
 #define		AT91_WDT_WDERR		(1 << 1)		/* Watchdog Error */
 
diff --git a/drivers/watchdog/ath79_wdt.c b/drivers/watchdog/ath79_wdt.c
index 725c84bfdd76..9db808349f8b 100644
--- a/drivers/watchdog/ath79_wdt.c
+++ b/drivers/watchdog/ath79_wdt.c
@@ -68,17 +68,23 @@ static int max_timeout;
 static inline void ath79_wdt_keepalive(void)
 {
 	ath79_reset_wr(AR71XX_RESET_REG_WDOG, wdt_freq * timeout);
+	/* flush write */
+	ath79_reset_rr(AR71XX_RESET_REG_WDOG);
 }
 
 static inline void ath79_wdt_enable(void)
 {
 	ath79_wdt_keepalive();
 	ath79_reset_wr(AR71XX_RESET_REG_WDOG_CTRL, WDOG_CTRL_ACTION_FCR);
+	/* flush write */
+	ath79_reset_rr(AR71XX_RESET_REG_WDOG_CTRL);
 }
 
 static inline void ath79_wdt_disable(void)
 {
 	ath79_reset_wr(AR71XX_RESET_REG_WDOG_CTRL, WDOG_CTRL_ACTION_NONE);
+	/* flush write */
+	ath79_reset_rr(AR71XX_RESET_REG_WDOG_CTRL);
 }
 
 static int ath79_wdt_set_timeout(int val)
diff --git a/drivers/watchdog/bcm63xx_wdt.c b/drivers/watchdog/bcm63xx_wdt.c
index 5064e8317521..8dc7de641e26 100644
--- a/drivers/watchdog/bcm63xx_wdt.c
+++ b/drivers/watchdog/bcm63xx_wdt.c
@@ -311,18 +311,7 @@ static struct platform_driver bcm63xx_wdt = {
 	}
 };
 
-static int __init bcm63xx_wdt_init(void)
-{
-	return platform_driver_register(&bcm63xx_wdt);
-}
-
-static void __exit bcm63xx_wdt_exit(void)
-{
-	platform_driver_unregister(&bcm63xx_wdt);
-}
-
-module_init(bcm63xx_wdt_init);
-module_exit(bcm63xx_wdt_exit);
+module_platform_driver(bcm63xx_wdt);
 
 MODULE_AUTHOR("Miguel Gaio <miguel.gaio@efixo.com>");
 MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
diff --git a/drivers/watchdog/cpu5wdt.c b/drivers/watchdog/cpu5wdt.c
index edd3475f41db..251c863d71dd 100644
--- a/drivers/watchdog/cpu5wdt.c
+++ b/drivers/watchdog/cpu5wdt.c
@@ -39,7 +39,7 @@
 static int verbose;
 static int port = 0x91;
 static int ticks = 10000;
-static spinlock_t cpu5wdt_lock;
+static DEFINE_SPINLOCK(cpu5wdt_lock);
 
 #define PFX			"cpu5wdt: "
 
@@ -223,7 +223,6 @@ static int __devinit cpu5wdt_init(void)
 				"port=0x%x, verbose=%i\n", port, verbose);
 
 	init_completion(&cpu5wdt_device.stop);
-	spin_lock_init(&cpu5wdt_lock);
 	cpu5wdt_device.queue = 0;
 	setup_timer(&cpu5wdt_device.timer, cpu5wdt_trigger, 0);
 	cpu5wdt_device.default_ticks = ticks;
diff --git a/drivers/watchdog/cpwd.c b/drivers/watchdog/cpwd.c
index 1e013e8457b7..1b793dfd868f 100644
--- a/drivers/watchdog/cpwd.c
+++ b/drivers/watchdog/cpwd.c
@@ -687,15 +687,4 @@ static struct platform_driver cpwd_driver = {
 	.remove		= __devexit_p(cpwd_remove),
 };
 
-static int __init cpwd_init(void)
-{
-	return platform_driver_register(&cpwd_driver);
-}
-
-static void __exit cpwd_exit(void)
-{
-	platform_driver_unregister(&cpwd_driver);
-}
-
-module_init(cpwd_init);
-module_exit(cpwd_exit);
+module_platform_driver(cpwd_driver);
diff --git a/drivers/watchdog/davinci_wdt.c b/drivers/watchdog/davinci_wdt.c
index 51b5551b4e3f..c8c5c8032bcb 100644
--- a/drivers/watchdog/davinci_wdt.c
+++ b/drivers/watchdog/davinci_wdt.c
@@ -271,18 +271,7 @@ static struct platform_driver platform_wdt_driver = {
 	.remove = __devexit_p(davinci_wdt_remove),
 };
 
-static int __init davinci_wdt_init(void)
-{
-	return platform_driver_register(&platform_wdt_driver);
-}
-
-static void __exit davinci_wdt_exit(void)
-{
-	platform_driver_unregister(&platform_wdt_driver);
-}
-
-module_init(davinci_wdt_init);
-module_exit(davinci_wdt_exit);
+module_platform_driver(platform_wdt_driver);
 
 MODULE_AUTHOR("Texas Instruments");
 MODULE_DESCRIPTION("DaVinci Watchdog Driver");
diff --git a/drivers/watchdog/dw_wdt.c b/drivers/watchdog/dw_wdt.c
index f10f8c0abba4..1b0e3dd81c1a 100644
--- a/drivers/watchdog/dw_wdt.c
+++ b/drivers/watchdog/dw_wdt.c
@@ -358,17 +358,7 @@ static struct platform_driver dw_wdt_driver = {
 	},
 };
 
-static int __init dw_wdt_watchdog_init(void)
-{
-	return platform_driver_register(&dw_wdt_driver);
-}
-module_init(dw_wdt_watchdog_init);
-
-static void __exit dw_wdt_watchdog_exit(void)
-{
-	platform_driver_unregister(&dw_wdt_driver);
-}
-module_exit(dw_wdt_watchdog_exit);
+module_platform_driver(dw_wdt_driver);
 
 MODULE_AUTHOR("Jamie Iles");
 MODULE_DESCRIPTION("Synopsys DesignWare Watchdog Driver");
diff --git a/drivers/watchdog/eurotechwdt.c b/drivers/watchdog/eurotechwdt.c
index 41018d429abb..3946c51099c0 100644
--- a/drivers/watchdog/eurotechwdt.c
+++ b/drivers/watchdog/eurotechwdt.c
@@ -64,7 +64,7 @@
 static unsigned long eurwdt_is_open;
 static int eurwdt_timeout;
 static char eur_expect_close;
-static spinlock_t eurwdt_lock;
+static DEFINE_SPINLOCK(eurwdt_lock);
 
 /*
  * You must set these - there is no sane way to probe for this board.
@@ -446,8 +446,6 @@ static int __init eurwdt_init(void)
 		goto outreg;
 	}
 
-	spin_lock_init(&eurwdt_lock);
-
 	ret = misc_register(&eurwdt_miscdev);
 	if (ret) {
 		printk(KERN_ERR "eurwdt: can't misc_register on minor=%d\n",
diff --git a/drivers/watchdog/ibmasr.c b/drivers/watchdog/ibmasr.c
index 195e0f798e76..c7481ad51629 100644
--- a/drivers/watchdog/ibmasr.c
+++ b/drivers/watchdog/ibmasr.c
@@ -68,7 +68,7 @@ static char asr_expect_close;
 static unsigned int asr_type, asr_base, asr_length;
 static unsigned int asr_read_addr, asr_write_addr;
 static unsigned char asr_toggle_mask, asr_disable_mask;
-static spinlock_t asr_lock;
+static DEFINE_SPINLOCK(asr_lock);
 
 static void __asr_toggle(void)
 {
@@ -386,8 +386,6 @@ static int __init ibmasr_init(void)
 	if (!asr_type)
 		return -ENODEV;
 
-	spin_lock_init(&asr_lock);
-
 	rc = asr_get_base_address();
 	if (rc)
 		return rc;
diff --git a/drivers/watchdog/indydog.c b/drivers/watchdog/indydog.c
index 1cc5609666d1..1475e09f9af2 100644
--- a/drivers/watchdog/indydog.c
+++ b/drivers/watchdog/indydog.c
@@ -28,7 +28,7 @@
 
 #define PFX "indydog: "
 static unsigned long indydog_alive;
-static spinlock_t indydog_lock;
+static DEFINE_SPINLOCK(indydog_lock);
 
 #define WATCHDOG_TIMEOUT 30		/* 30 sec default timeout */
 
@@ -185,8 +185,6 @@ static int __init watchdog_init(void)
 {
 	int ret;
 
-	spin_lock_init(&indydog_lock);
-
 	ret = register_reboot_notifier(&indydog_notifier);
 	if (ret) {
 		printk(KERN_ERR PFX
diff --git a/drivers/watchdog/iop_wdt.c b/drivers/watchdog/iop_wdt.c
index aef94789019f..82fa7a92a8d2 100644
--- a/drivers/watchdog/iop_wdt.c
+++ b/drivers/watchdog/iop_wdt.c
@@ -37,7 +37,7 @@
 static int nowayout = WATCHDOG_NOWAYOUT;
 static unsigned long wdt_status;
 static unsigned long boot_status;
-static spinlock_t wdt_lock;
+static DEFINE_SPINLOCK(wdt_lock);
 
 #define WDT_IN_USE		0
 #define WDT_OK_TO_CLOSE		1
@@ -226,9 +226,6 @@ static int __init iop_wdt_init(void)
 {
 	int ret;
 
-	spin_lock_init(&wdt_lock);
-
-
 	/* check if the reset was caused by the watchdog timer */
 	boot_status = (read_rcsr() & IOP_RCSR_WDT) ? WDIOF_CARDRESET : 0;
 
diff --git a/drivers/watchdog/ixp2000_wdt.c b/drivers/watchdog/ixp2000_wdt.c
index e86952a7168c..084f71aa855a 100644
--- a/drivers/watchdog/ixp2000_wdt.c
+++ b/drivers/watchdog/ixp2000_wdt.c
@@ -32,7 +32,7 @@
 static int nowayout = WATCHDOG_NOWAYOUT;
 static unsigned int heartbeat = 60;	/* (secs) Default is 1 minute */
 static unsigned long wdt_status;
-static spinlock_t wdt_lock;
+static DEFINE_SPINLOCK(wdt_lock);
 
 #define	WDT_IN_USE		0
 #define	WDT_OK_TO_CLOSE		1
@@ -189,7 +189,6 @@ static int __init ixp2000_wdt_init(void)
 		return -EIO;
 	}
 	wdt_tick_rate = (*IXP2000_T1_CLD * HZ) / 256;
-	spin_lock_init(&wdt_lock);
 	return misc_register(&ixp2000_wdt_miscdev);
 }
 
diff --git a/drivers/watchdog/ixp4xx_wdt.c b/drivers/watchdog/ixp4xx_wdt.c
index e02c0ecda26b..4fc2e9ac26f7 100644
--- a/drivers/watchdog/ixp4xx_wdt.c
+++ b/drivers/watchdog/ixp4xx_wdt.c
@@ -181,7 +181,6 @@ static int __init ixp4xx_wdt_init(void)
 
 		return -ENODEV;
 	}
-	spin_lock_init(&wdt_lock);
 	boot_status = (*IXP4XX_OSST & IXP4XX_OSST_TIMER_WARM_RESET) ?
 			WDIOF_CARDRESET : 0;
 	ret = misc_register(&ixp4xx_wdt_miscdev);
diff --git a/drivers/watchdog/jz4740_wdt.c b/drivers/watchdog/jz4740_wdt.c
index 684ba01fb540..17ef300bccc5 100644
--- a/drivers/watchdog/jz4740_wdt.c
+++ b/drivers/watchdog/jz4740_wdt.c
@@ -295,18 +295,7 @@ static struct platform_driver jz4740_wdt_driver = {
 	},
 };
 
-
-static int __init jz4740_wdt_init(void)
-{
-	return platform_driver_register(&jz4740_wdt_driver);
-}
-module_init(jz4740_wdt_init);
-
-static void __exit jz4740_wdt_exit(void)
-{
-	platform_driver_unregister(&jz4740_wdt_driver);
-}
-module_exit(jz4740_wdt_exit);
+module_platform_driver(jz4740_wdt_driver);
 
 MODULE_AUTHOR("Paul Cercueil <paul@crapouillou.net>");
 MODULE_DESCRIPTION("jz4740 Watchdog Driver");
diff --git a/drivers/watchdog/ks8695_wdt.c b/drivers/watchdog/ks8695_wdt.c
index 811471903e8a..51757a520e8f 100644
--- a/drivers/watchdog/ks8695_wdt.c
+++ b/drivers/watchdog/ks8695_wdt.c
@@ -42,7 +42,7 @@ MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started (default="
 
 
 static unsigned long ks8695wdt_busy;
-static spinlock_t ks8695_lock;
+static DEFINE_SPINLOCK(ks8695_lock);
 
 /* ......................................................................... */
 
@@ -288,7 +288,6 @@ static struct platform_driver ks8695wdt_driver = {
 
 static int __init ks8695_wdt_init(void)
 {
-	spin_lock_init(&ks8695_lock);
 	/* Check that the heartbeat value is within range;
 	   if not reset to the default */
 	if (ks8695_wdt_settimeout(wdt_time)) {
diff --git a/drivers/watchdog/lantiq_wdt.c b/drivers/watchdog/lantiq_wdt.c
index 102aed0efbf1..d3a63be2e28d 100644
--- a/drivers/watchdog/lantiq_wdt.c
+++ b/drivers/watchdog/lantiq_wdt.c
@@ -222,9 +222,6 @@ ltq_wdt_remove(struct platform_device *pdev)
 {
 	misc_deregister(&ltq_wdt_miscdev);
 
-	if (ltq_wdt_membase)
-		iounmap(ltq_wdt_membase);
-
 	return 0;
 }
 
diff --git a/drivers/watchdog/max63xx_wdt.c b/drivers/watchdog/max63xx_wdt.c
index 73ba2fd8e591..af63ecfbfa6f 100644
--- a/drivers/watchdog/max63xx_wdt.c
+++ b/drivers/watchdog/max63xx_wdt.c
@@ -364,18 +364,7 @@ static struct platform_driver max63xx_wdt_driver = {
 	},
 };
 
-static int __init max63xx_wdt_init(void)
-{
-	return platform_driver_register(&max63xx_wdt_driver);
-}
-
-static void __exit max63xx_wdt_exit(void)
-{
-	platform_driver_unregister(&max63xx_wdt_driver);
-}
-
-module_init(max63xx_wdt_init);
-module_exit(max63xx_wdt_exit);
+module_platform_driver(max63xx_wdt_driver);
 
 MODULE_AUTHOR("Marc Zyngier <maz@misterjones.org>");
 MODULE_DESCRIPTION("max63xx Watchdog Driver");
diff --git a/drivers/watchdog/mtx-1_wdt.c b/drivers/watchdog/mtx-1_wdt.c
index ac37bb82392c..c29e31d99fe8 100644
--- a/drivers/watchdog/mtx-1_wdt.c
+++ b/drivers/watchdog/mtx-1_wdt.c
@@ -253,18 +253,7 @@ static struct platform_driver mtx1_wdt_driver = {
 	.driver.owner = THIS_MODULE,
 };
 
-static int __init mtx1_wdt_init(void)
-{
-	return platform_driver_register(&mtx1_wdt_driver);
-}
-
-static void __exit mtx1_wdt_exit(void)
-{
-	platform_driver_unregister(&mtx1_wdt_driver);
-}
-
-module_init(mtx1_wdt_init);
-module_exit(mtx1_wdt_exit);
+module_platform_driver(mtx1_wdt_driver);
 
 MODULE_AUTHOR("Michael Stickel, Florian Fainelli");
 MODULE_DESCRIPTION("Driver for the MTX-1 watchdog");
diff --git a/drivers/watchdog/nuc900_wdt.c b/drivers/watchdog/nuc900_wdt.c
index 6cee33d4b161..50359bad9177 100644
--- a/drivers/watchdog/nuc900_wdt.c
+++ b/drivers/watchdog/nuc900_wdt.c
@@ -334,18 +334,7 @@ static struct platform_driver nuc900wdt_driver = {
 	},
 };
 
-static int __init nuc900_wdt_init(void)
-{
-	return platform_driver_register(&nuc900wdt_driver);
-}
-
-static void __exit nuc900_wdt_exit(void)
-{
-	platform_driver_unregister(&nuc900wdt_driver);
-}
-
-module_init(nuc900_wdt_init);
-module_exit(nuc900_wdt_exit);
+module_platform_driver(nuc900wdt_driver);
 
 MODULE_AUTHOR("Wan ZongShun <mcuos.com@gmail.com>");
 MODULE_DESCRIPTION("Watchdog driver for NUC900");
diff --git a/drivers/watchdog/of_xilinx_wdt.c b/drivers/watchdog/of_xilinx_wdt.c
index 4ec741ac952c..f359ab85c3bc 100644
--- a/drivers/watchdog/of_xilinx_wdt.c
+++ b/drivers/watchdog/of_xilinx_wdt.c
@@ -414,18 +414,7 @@ static struct platform_driver xwdt_driver = {
 	},
 };
 
-static int __init xwdt_init(void)
-{
-	return platform_driver_register(&xwdt_driver);
-}
-
-static void __exit xwdt_exit(void)
-{
-	platform_driver_unregister(&xwdt_driver);
-}
-
-module_init(xwdt_init);
-module_exit(xwdt_exit);
+module_platform_driver(xwdt_driver);
 
 MODULE_AUTHOR("Alejandro Cabrera <aldaya@gmail.com>");
 MODULE_DESCRIPTION("Xilinx Watchdog driver");
diff --git a/drivers/watchdog/omap_wdt.c b/drivers/watchdog/omap_wdt.c
index 2b4acb86c191..4b33e3fd726b 100644
--- a/drivers/watchdog/omap_wdt.c
+++ b/drivers/watchdog/omap_wdt.c
@@ -55,7 +55,7 @@ module_param(timer_margin, uint, 0);
 MODULE_PARM_DESC(timer_margin, "initial watchdog timeout (in seconds)");
 
 static unsigned int wdt_trgr_pattern = 0x1234;
-static spinlock_t wdt_lock;
+static DEFINE_SPINLOCK(wdt_lock);
 
 struct omap_wdt_dev {
 	void __iomem    *base;          /* physical */
@@ -232,6 +232,7 @@ static long omap_wdt_ioctl(struct file *file, unsigned int cmd,
 		if (cpu_is_omap24xx())
 			return put_user(omap_prcm_get_reset_sources(),
 					(int __user *)arg);
+		return put_user(0, (int __user *)arg);
 	case WDIOC_KEEPALIVE:
 		pm_runtime_get_sync(wdev->dev);
 		spin_lock(&wdt_lock);
@@ -437,19 +438,7 @@ static struct platform_driver omap_wdt_driver = {
 	},
 };
 
-static int __init omap_wdt_init(void)
-{
-	spin_lock_init(&wdt_lock);
-	return platform_driver_register(&omap_wdt_driver);
-}
-
-static void __exit omap_wdt_exit(void)
-{
-	platform_driver_unregister(&omap_wdt_driver);
-}
-
-module_init(omap_wdt_init);
-module_exit(omap_wdt_exit);
+module_platform_driver(omap_wdt_driver);
 
 MODULE_AUTHOR("George G. Davis");
 MODULE_LICENSE("GPL");
diff --git a/drivers/watchdog/orion_wdt.c b/drivers/watchdog/orion_wdt.c
index 2d9fb96a9ee9..4ad78f868515 100644
--- a/drivers/watchdog/orion_wdt.c
+++ b/drivers/watchdog/orion_wdt.c
@@ -41,7 +41,7 @@ static int heartbeat = -1;		/* module parameter (seconds) */
 static unsigned int wdt_max_duration;	/* (seconds) */
 static unsigned int wdt_tclk;
 static unsigned long wdt_status;
-static spinlock_t wdt_lock;
+static DEFINE_SPINLOCK(wdt_lock);
 
 static void orion_wdt_ping(void)
 {
@@ -294,19 +294,7 @@ static struct platform_driver orion_wdt_driver = {
 	},
 };
 
-static int __init orion_wdt_init(void)
-{
-	spin_lock_init(&wdt_lock);
-	return platform_driver_register(&orion_wdt_driver);
-}
-
-static void __exit orion_wdt_exit(void)
-{
-	platform_driver_unregister(&orion_wdt_driver);
-}
-
-module_init(orion_wdt_init);
-module_exit(orion_wdt_exit);
+module_platform_driver(orion_wdt_driver);
 
 MODULE_AUTHOR("Sylver Bruneau <sylver.bruneau@googlemail.com>");
 MODULE_DESCRIPTION("Orion Processor Watchdog");
diff --git a/drivers/watchdog/pnx4008_wdt.c b/drivers/watchdog/pnx4008_wdt.c
index 614933225560..bd143c9dd3e6 100644
--- a/drivers/watchdog/pnx4008_wdt.c
+++ b/drivers/watchdog/pnx4008_wdt.c
@@ -334,18 +334,7 @@ static struct platform_driver platform_wdt_driver = {
 	.remove = __devexit_p(pnx4008_wdt_remove),
 };
 
-static int __init pnx4008_wdt_init(void)
-{
-	return platform_driver_register(&platform_wdt_driver);
-}
-
-static void __exit pnx4008_wdt_exit(void)
-{
-	platform_driver_unregister(&platform_wdt_driver);
-}
-
-module_init(pnx4008_wdt_init);
-module_exit(pnx4008_wdt_exit);
+module_platform_driver(platform_wdt_driver);
 
 MODULE_AUTHOR("MontaVista Software, Inc. <source@mvista.com>");
 MODULE_DESCRIPTION("PNX4008 Watchdog Driver");
diff --git a/drivers/watchdog/rc32434_wdt.c b/drivers/watchdog/rc32434_wdt.c
index d4c29b5311a4..bf7bc8aa1c01 100644
--- a/drivers/watchdog/rc32434_wdt.c
+++ b/drivers/watchdog/rc32434_wdt.c
@@ -332,18 +332,7 @@ static struct platform_driver rc32434_wdt_driver = {
 	}
 };
 
-static int __init rc32434_wdt_init(void)
-{
-	return platform_driver_register(&rc32434_wdt_driver);
-}
-
-static void __exit rc32434_wdt_exit(void)
-{
-	platform_driver_unregister(&rc32434_wdt_driver);
-}
-
-module_init(rc32434_wdt_init);
-module_exit(rc32434_wdt_exit);
+module_platform_driver(rc32434_wdt_driver);
 
 MODULE_AUTHOR("Ondrej Zajicek <santiago@crfreenet.org>,"
 		"Florian Fainelli <florian@openwrt.org>");
diff --git a/drivers/watchdog/rdc321x_wdt.c b/drivers/watchdog/rdc321x_wdt.c
index 428f8a1583e8..042ccc56ae26 100644
--- a/drivers/watchdog/rdc321x_wdt.c
+++ b/drivers/watchdog/rdc321x_wdt.c
@@ -293,18 +293,7 @@ static struct platform_driver rdc321x_wdt_driver = {
 	},
 };
 
-static int __init rdc321x_wdt_init(void)
-{
-	return platform_driver_register(&rdc321x_wdt_driver);
-}
-
-static void __exit rdc321x_wdt_exit(void)
-{
-	platform_driver_unregister(&rdc321x_wdt_driver);
-}
-
-module_init(rdc321x_wdt_init);
-module_exit(rdc321x_wdt_exit);
+module_platform_driver(rdc321x_wdt_driver);
 
 MODULE_AUTHOR("Florian Fainelli <florian@openwrt.org>");
 MODULE_DESCRIPTION("RDC321x watchdog driver");
diff --git a/drivers/watchdog/riowd.c b/drivers/watchdog/riowd.c
index 109b533896b7..c7e17ceafa6a 100644
--- a/drivers/watchdog/riowd.c
+++ b/drivers/watchdog/riowd.c
@@ -247,15 +247,4 @@ static struct platform_driver riowd_driver = {
 	.remove		= __devexit_p(riowd_remove),
 };
 
-static int __init riowd_init(void)
-{
-	return platform_driver_register(&riowd_driver);
-}
-
-static void __exit riowd_exit(void)
-{
-	platform_driver_unregister(&riowd_driver);
-}
-
-module_init(riowd_init);
-module_exit(riowd_exit);
+module_platform_driver(riowd_driver);
diff --git a/drivers/watchdog/s3c2410_wdt.c b/drivers/watchdog/s3c2410_wdt.c
index a79e3840782a..4bc3744e14e4 100644
--- a/drivers/watchdog/s3c2410_wdt.c
+++ b/drivers/watchdog/s3c2410_wdt.c
@@ -378,6 +378,8 @@ static int __devinit s3c2410wdt_probe(struct platform_device *pdev)
 							"cannot start\n");
 	}
 
+	watchdog_set_nowayout(&s3c2410_wdd, nowayout);
+
 	ret = watchdog_register_device(&s3c2410_wdd);
 	if (ret) {
 		dev_err(dev, "cannot register watchdog (%d)\n", ret);
diff --git a/drivers/watchdog/stmp3xxx_wdt.c b/drivers/watchdog/stmp3xxx_wdt.c
index ac2346a452e5..4c2a4e8698f9 100644
--- a/drivers/watchdog/stmp3xxx_wdt.c
+++ b/drivers/watchdog/stmp3xxx_wdt.c
@@ -272,18 +272,7 @@ static struct platform_driver platform_wdt_driver = {
 	.resume = stmp3xxx_wdt_resume,
 };
 
-static int __init stmp3xxx_wdt_init(void)
-{
-	return platform_driver_register(&platform_wdt_driver);
-}
-
-static void __exit stmp3xxx_wdt_exit(void)
-{
-	return platform_driver_unregister(&platform_wdt_driver);
-}
-
-module_init(stmp3xxx_wdt_init);
-module_exit(stmp3xxx_wdt_exit);
+module_platform_driver(platform_wdt_driver);
 
 MODULE_DESCRIPTION("STMP3XXX Watchdog Driver");
 MODULE_LICENSE("GPL");
diff --git a/drivers/watchdog/ts72xx_wdt.c b/drivers/watchdog/ts72xx_wdt.c
index 5a90a4a871dd..1490293dc7da 100644
--- a/drivers/watchdog/ts72xx_wdt.c
+++ b/drivers/watchdog/ts72xx_wdt.c
@@ -506,17 +506,7 @@ static struct platform_driver ts72xx_wdt_driver = {
 	},
 };
 
-static __init int ts72xx_wdt_init(void)
-{
-	return platform_driver_register(&ts72xx_wdt_driver);
-}
-module_init(ts72xx_wdt_init);
-
-static __exit void ts72xx_wdt_exit(void)
-{
-	platform_driver_unregister(&ts72xx_wdt_driver);
-}
-module_exit(ts72xx_wdt_exit);
+module_platform_driver(ts72xx_wdt_driver);
 
 MODULE_AUTHOR("Mika Westerberg <mika.westerberg@iki.fi>");
 MODULE_DESCRIPTION("TS-72xx SBC Watchdog");
diff --git a/drivers/watchdog/twl4030_wdt.c b/drivers/watchdog/twl4030_wdt.c
index b5045ca7e61c..0764c6239b98 100644
--- a/drivers/watchdog/twl4030_wdt.c
+++ b/drivers/watchdog/twl4030_wdt.c
@@ -256,17 +256,7 @@ static struct platform_driver twl4030_wdt_driver = {
 	},
 };
 
-static int __devinit twl4030_wdt_init(void)
-{
-	return platform_driver_register(&twl4030_wdt_driver);
-}
-module_init(twl4030_wdt_init);
-
-static void __devexit twl4030_wdt_exit(void)
-{
-	platform_driver_unregister(&twl4030_wdt_driver);
-}
-module_exit(twl4030_wdt_exit);
+module_platform_driver(twl4030_wdt_driver);
 
 MODULE_AUTHOR("Nokia Corporation");
 MODULE_LICENSE("GPL");
diff --git a/drivers/watchdog/via_wdt.c b/drivers/watchdog/via_wdt.c
new file mode 100644
index 000000000000..026b4bbfa0aa
--- /dev/null
+++ b/drivers/watchdog/via_wdt.c
@@ -0,0 +1,267 @@
+/*
+ * VIA Chipset Watchdog Driver
+ *
+ * Copyright (C) 2011 Sigfox
+ * License terms: GNU General Public License (GPL) version 2
+ * Author: Marc Vertes <marc.vertes@sigfox.com>
+ * Based on a preliminary version from Harald Welte <HaraldWelte@viatech.com>
+ * Timer code by Wim Van Sebroeck <wim@iguana.be>
+ *
+ * Caveat: PnP must be enabled in BIOS to allow full access to watchdog
+ * control registers. If not, the watchdog must be configured in BIOS manually.
+ */
+#include <linux/device.h>
+#include <linux/io.h>
+#include <linux/jiffies.h>
+#include <linux/module.h>
+#include <linux/pci.h>
+#include <linux/timer.h>
+#include <linux/watchdog.h>
+
+/* Configuration registers relative to the pci device */
+#define VIA_WDT_MMIO_BASE	0xe8	/* MMIO region base address */
+#define VIA_WDT_CONF		0xec	/* watchdog enable state */
+
+/* Relevant bits for the VIA_WDT_CONF register */
+#define VIA_WDT_CONF_ENABLE	0x01	/* 1: enable watchdog */
+#define VIA_WDT_CONF_MMIO	0x02	/* 1: enable watchdog MMIO */
+
+/*
+ * The MMIO region contains the watchog control register and the
+ * hardware timer counter.
+ */
+#define VIA_WDT_MMIO_LEN	8	/* MMIO region length in bytes */
+#define VIA_WDT_CTL		0	/* MMIO addr+0: state/control reg. */
+#define VIA_WDT_COUNT		4	/* MMIO addr+4: timer counter reg. */
+
+/* Bits for the VIA_WDT_CTL register */
+#define VIA_WDT_RUNNING		0x01	/* 0: stop, 1: running */
+#define VIA_WDT_FIRED		0x02	/* 1: restarted by expired watchdog */
+#define VIA_WDT_PWROFF		0x04	/* 0: reset, 1: poweroff */
+#define VIA_WDT_DISABLED	0x08	/* 1: timer is disabled */
+#define VIA_WDT_TRIGGER		0x80	/* 1: start a new countdown */
+
+/* Hardware heartbeat in seconds */
+#define WDT_HW_HEARTBEAT 1
+
+/* Timer heartbeat (500ms) */
+#define WDT_HEARTBEAT	(HZ/2)	/* should be <= ((WDT_HW_HEARTBEAT*HZ)/2) */
+
+/* User space timeout in seconds */
+#define WDT_TIMEOUT_MAX	1023	/* approx. 17 min. */
+#define WDT_TIMEOUT	60
+static int timeout = WDT_TIMEOUT;
+module_param(timeout, int, 0);
+MODULE_PARM_DESC(timeout, "Watchdog timeout in seconds, between 1 and 1023 "
+	"(default = " __MODULE_STRING(WDT_TIMEOUT) ")");
+
+static int nowayout = WATCHDOG_NOWAYOUT;
+module_param(nowayout, int, 0);
+MODULE_PARM_DESC(nowayout, "Watchdog cannot be stopped once started "
+	"(default = " __MODULE_STRING(WATCHDOG_NOWAYOUT) ")");
+
+static struct watchdog_device wdt_dev;
+static struct resource wdt_res;
+static void __iomem *wdt_mem;
+static unsigned int mmio;
+static void wdt_timer_tick(unsigned long data);
+static DEFINE_TIMER(timer, wdt_timer_tick, 0, 0);
+					/* The timer that pings the watchdog */
+static unsigned long next_heartbeat;	/* the next_heartbeat for the timer */
+
+static inline void wdt_reset(void)
+{
+	unsigned int ctl = readl(wdt_mem);
+
+	writel(ctl | VIA_WDT_TRIGGER, wdt_mem);
+}
+
+/*
+ * Timer tick: the timer will make sure that the watchdog timer hardware
+ * is being reset in time. The conditions to do this are:
+ *  1) the watchog timer has been started and /dev/watchdog is open
+ *     and there is still time left before userspace should send the
+ *     next heartbeat/ping. (note: the internal heartbeat is much smaller
+ *     then the external/userspace heartbeat).
+ *  2) the watchdog timer has been stopped by userspace.
+ */
+static void wdt_timer_tick(unsigned long data)
+{
+	if (time_before(jiffies, next_heartbeat) ||
+	   (!test_bit(WDOG_ACTIVE, &wdt_dev.status))) {
+		wdt_reset();
+		mod_timer(&timer, jiffies + WDT_HEARTBEAT);
+	} else
+		pr_crit("I will reboot your machine !\n");
+}
+
+static int wdt_ping(struct watchdog_device *wdd)
+{
+	/* calculate when the next userspace timeout will be */
+	next_heartbeat = jiffies + timeout * HZ;
+	return 0;
+}
+
+static int wdt_start(struct watchdog_device *wdd)
+{
+	unsigned int ctl = readl(wdt_mem);
+
+	writel(timeout, wdt_mem + VIA_WDT_COUNT);
+	writel(ctl | VIA_WDT_RUNNING | VIA_WDT_TRIGGER, wdt_mem);
+	wdt_ping(wdd);
+	mod_timer(&timer, jiffies + WDT_HEARTBEAT);
+	return 0;
+}
+
+static int wdt_stop(struct watchdog_device *wdd)
+{
+	unsigned int ctl = readl(wdt_mem);
+
+	writel(ctl & ~VIA_WDT_RUNNING, wdt_mem);
+	return 0;
+}
+
+static int wdt_set_timeout(struct watchdog_device *wdd,
+			   unsigned int new_timeout)
+{
+	if (new_timeout < 1 || new_timeout > WDT_TIMEOUT_MAX)
+		return -EINVAL;
+	writel(new_timeout, wdt_mem + VIA_WDT_COUNT);
+	timeout = new_timeout;
+	return 0;
+}
+
+static const struct watchdog_info wdt_info = {
+	.identity =	"VIA watchdog",
+	.options =	WDIOF_CARDRESET |
+			WDIOF_SETTIMEOUT |
+			WDIOF_MAGICCLOSE |
+			WDIOF_KEEPALIVEPING,
+};
+
+static const struct watchdog_ops wdt_ops = {
+	.owner =	THIS_MODULE,
+	.start =	wdt_start,
+	.stop =		wdt_stop,
+	.ping =		wdt_ping,
+	.set_timeout =	wdt_set_timeout,
+};
+
+static struct watchdog_device wdt_dev = {
+	.info =		&wdt_info,
+	.ops =		&wdt_ops,
+};
+
+static int __devinit wdt_probe(struct pci_dev *pdev,
+			       const struct pci_device_id *ent)
+{
+	unsigned char conf;
+	int ret = -ENODEV;
+
+	if (pci_enable_device(pdev)) {
+		dev_err(&pdev->dev, "cannot enable PCI device\n");
+		return -ENODEV;
+	}
+
+	/*
+	 * Allocate a MMIO region which contains watchdog control register
+	 * and counter, then configure the watchdog to use this region.
+	 * This is possible only if PnP is properly enabled in BIOS.
+	 * If not, the watchdog must be configured in BIOS manually.
+	 */
+	if (allocate_resource(&iomem_resource, &wdt_res, VIA_WDT_MMIO_LEN,
+			      0xf0000000, 0xffffff00, 0xff, NULL, NULL)) {
+		dev_err(&pdev->dev, "MMIO allocation failed\n");
+		goto err_out_disable_device;
+	}
+
+	pci_write_config_dword(pdev, VIA_WDT_MMIO_BASE, wdt_res.start);
+	pci_read_config_byte(pdev, VIA_WDT_CONF, &conf);
+	conf |= VIA_WDT_CONF_ENABLE | VIA_WDT_CONF_MMIO;
+	pci_write_config_byte(pdev, VIA_WDT_CONF, conf);
+
+	pci_read_config_dword(pdev, VIA_WDT_MMIO_BASE, &mmio);
+	if (mmio) {
+		dev_info(&pdev->dev, "VIA Chipset watchdog MMIO: %x\n", mmio);
+	} else {
+		dev_err(&pdev->dev, "MMIO setting failed. Check BIOS.\n");
+		goto err_out_resource;
+	}
+
+	if (!request_mem_region(mmio, VIA_WDT_MMIO_LEN, "via_wdt")) {
+		dev_err(&pdev->dev, "MMIO region busy\n");
+		goto err_out_resource;
+	}
+
+	wdt_mem = ioremap(mmio, VIA_WDT_MMIO_LEN);
+	if (wdt_mem == NULL) {
+		dev_err(&pdev->dev, "cannot remap VIA wdt MMIO registers\n");
+		goto err_out_release;
+	}
+
+	wdt_dev.timeout = timeout;
+	watchdog_set_nowayout(&wdt_dev, nowayout);
+	if (readl(wdt_mem) & VIA_WDT_FIRED)
+		wdt_dev.bootstatus |= WDIOF_CARDRESET;
+
+	ret = watchdog_register_device(&wdt_dev);
+	if (ret)
+		goto err_out_iounmap;
+
+	/* start triggering, in case of watchdog already enabled by BIOS */
+	mod_timer(&timer, jiffies + WDT_HEARTBEAT);
+	return 0;
+
+err_out_iounmap:
+	iounmap(wdt_mem);
+err_out_release:
+	release_mem_region(mmio, VIA_WDT_MMIO_LEN);
+err_out_resource:
+	release_resource(&wdt_res);
+err_out_disable_device:
+	pci_disable_device(pdev);
+	return ret;
+}
+
+static void __devexit wdt_remove(struct pci_dev *pdev)
+{
+	watchdog_unregister_device(&wdt_dev);
+	del_timer(&timer);
+	iounmap(wdt_mem);
+	release_mem_region(mmio, VIA_WDT_MMIO_LEN);
+	release_resource(&wdt_res);
+	pci_disable_device(pdev);
+}
+
+DEFINE_PCI_DEVICE_TABLE(wdt_pci_table) = {
+	{ PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_CX700) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VX800) },
+	{ PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VX855) },
+	{ 0 }
+};
+
+static struct pci_driver wdt_driver = {
+	.name		= "via_wdt",
+	.id_table	= wdt_pci_table,
+	.probe		= wdt_probe,
+	.remove		= __devexit_p(wdt_remove),
+};
+
+static int __init wdt_init(void)
+{
+	if (timeout < 1 || timeout > WDT_TIMEOUT_MAX)
+		timeout = WDT_TIMEOUT;
+	return pci_register_driver(&wdt_driver);
+}
+
+static void __exit wdt_exit(void)
+{
+	pci_unregister_driver(&wdt_driver);
+}
+
+module_init(wdt_init);
+module_exit(wdt_exit);
+
+MODULE_AUTHOR("Marc Vertes");
+MODULE_DESCRIPTION("Driver for watchdog timer on VIA chipset");
+MODULE_LICENSE("GPL");
diff --git a/drivers/watchdog/wm831x_wdt.c b/drivers/watchdog/wm831x_wdt.c
index e789a47db41f..263c883f0806 100644
--- a/drivers/watchdog/wm831x_wdt.c
+++ b/drivers/watchdog/wm831x_wdt.c
@@ -199,7 +199,8 @@ static int __devinit wm831x_wdt_probe(struct platform_device *pdev)
 	if (reg & WM831X_WDOG_DEBUG)
 		dev_warn(wm831x->dev, "Watchdog is paused\n");
 
-	driver_data = kzalloc(sizeof(*driver_data), GFP_KERNEL);
+	driver_data = devm_kzalloc(&pdev->dev, sizeof(*driver_data),
+				   GFP_KERNEL);
 	if (!driver_data) {
 		dev_err(wm831x->dev, "Unable to alloacate watchdog device\n");
 		ret = -ENOMEM;
@@ -213,11 +214,9 @@ static int __devinit wm831x_wdt_probe(struct platform_device *pdev)
 
 	wm831x_wdt->info = &wm831x_wdt_info;
 	wm831x_wdt->ops = &wm831x_wdt_ops;
+	watchdog_set_nowayout(wm831x_wdt, nowayout);
 	watchdog_set_drvdata(wm831x_wdt, driver_data);
 
-	if (nowayout)
-		wm831x_wdt->status |= WDOG_NO_WAY_OUT;
-
 	reg = wm831x_reg_read(wm831x, WM831X_WATCHDOG);
 	reg &= WM831X_WDOG_TO_MASK;
 	for (i = 0; i < ARRAY_SIZE(wm831x_wdt_cfgs); i++)
@@ -252,7 +251,7 @@ static int __devinit wm831x_wdt_probe(struct platform_device *pdev)
 				dev_err(wm831x->dev,
 					"Failed to request update GPIO: %d\n",
 					ret);
-				goto err_alloc;
+				goto err;
 			}
 
 			ret = gpio_direction_output(pdata->update_gpio, 0);
@@ -294,8 +293,6 @@ static int __devinit wm831x_wdt_probe(struct platform_device *pdev)
 err_gpio:
 	if (driver_data->update_gpio)
 		gpio_free(driver_data->update_gpio);
-err_alloc:
-	kfree(driver_data);
 err:
 	return ret;
 }
@@ -320,17 +317,7 @@ static struct platform_driver wm831x_wdt_driver = {
 	},
 };
 
-static int __init wm831x_wdt_init(void)
-{
-	return platform_driver_register(&wm831x_wdt_driver);
-}
-module_init(wm831x_wdt_init);
-
-static void __exit wm831x_wdt_exit(void)
-{
-	platform_driver_unregister(&wm831x_wdt_driver);
-}
-module_exit(wm831x_wdt_exit);
+module_platform_driver(wm831x_wdt_driver);
 
 MODULE_AUTHOR("Mark Brown");
 MODULE_DESCRIPTION("WM831x Watchdog");
diff --git a/drivers/watchdog/wm8350_wdt.c b/drivers/watchdog/wm8350_wdt.c
index b68d928c8f90..909c78650d3e 100644
--- a/drivers/watchdog/wm8350_wdt.c
+++ b/drivers/watchdog/wm8350_wdt.c
@@ -311,17 +311,7 @@ static struct platform_driver wm8350_wdt_driver = {
 	},
 };
 
-static int __init wm8350_wdt_init(void)
-{
-	return platform_driver_register(&wm8350_wdt_driver);
-}
-module_init(wm8350_wdt_init);
-
-static void __exit wm8350_wdt_exit(void)
-{
-	platform_driver_unregister(&wm8350_wdt_driver);
-}
-module_exit(wm8350_wdt_exit);
+module_platform_driver(wm8350_wdt_driver);
 
 MODULE_AUTHOR("Mark Brown");
 MODULE_DESCRIPTION("WM8350 Watchdog");
diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig
index 8795480c2350..a1ced521cf74 100644
--- a/drivers/xen/Kconfig
+++ b/drivers/xen/Kconfig
@@ -86,6 +86,7 @@ config XEN_BACKEND
 
 config XENFS
 	tristate "Xen filesystem"
+	select XEN_PRIVCMD
 	default y
 	help
 	  The xen filesystem provides a way for domains to share
@@ -171,4 +172,10 @@ config XEN_PCIDEV_BACKEND
 	  xen-pciback.hide=(03:00.0)(04:00.0)
 
 	  If in doubt, say m.
+
+config XEN_PRIVCMD
+	tristate
+	depends on XEN
+	default m
+
 endmenu
diff --git a/drivers/xen/Makefile b/drivers/xen/Makefile
index 974fffdf22b2..aa31337192cc 100644
--- a/drivers/xen/Makefile
+++ b/drivers/xen/Makefile
@@ -19,7 +19,9 @@ obj-$(CONFIG_XEN_TMEM)			+= tmem.o
 obj-$(CONFIG_SWIOTLB_XEN)		+= swiotlb-xen.o
 obj-$(CONFIG_XEN_DOM0)			+= pci.o
 obj-$(CONFIG_XEN_PCIDEV_BACKEND)	+= xen-pciback/
+obj-$(CONFIG_XEN_PRIVCMD)		+= xen-privcmd.o
 
 xen-evtchn-y				:= evtchn.o
 xen-gntdev-y				:= gntdev.o
 xen-gntalloc-y				:= gntalloc.o
+xen-privcmd-y				:= privcmd.o
diff --git a/drivers/xen/events.c b/drivers/xen/events.c
index 6e075cdd0c6b..e5e5812a1014 100644
--- a/drivers/xen/events.c
+++ b/drivers/xen/events.c
@@ -87,6 +87,7 @@ enum xen_irq_type {
  */
 struct irq_info {
 	struct list_head list;
+	int refcnt;
 	enum xen_irq_type type;	/* type */
 	unsigned irq;
 	unsigned short evtchn;	/* event channel */
@@ -406,6 +407,7 @@ static void xen_irq_init(unsigned irq)
 		panic("Unable to allocate metadata for IRQ%d\n", irq);
 
 	info->type = IRQT_UNBOUND;
+	info->refcnt = -1;
 
 	irq_set_handler_data(irq, info);
 
@@ -469,6 +471,8 @@ static void xen_free_irq(unsigned irq)
 
 	irq_set_handler_data(irq, NULL);
 
+	WARN_ON(info->refcnt > 0);
+
 	kfree(info);
 
 	/* Legacy IRQ descriptors are managed by the arch. */
@@ -637,7 +641,7 @@ int xen_bind_pirq_gsi_to_irq(unsigned gsi,
 	if (irq != -1) {
 		printk(KERN_INFO "xen_map_pirq_gsi: returning irq %d for gsi %u\n",
 		       irq, gsi);
-		goto out;	/* XXX need refcount? */
+		goto out;
 	}
 
 	irq = xen_allocate_irq_gsi(gsi);
@@ -939,9 +943,16 @@ static void unbind_from_irq(unsigned int irq)
 {
 	struct evtchn_close close;
 	int evtchn = evtchn_from_irq(irq);
+	struct irq_info *info = irq_get_handler_data(irq);
 
 	mutex_lock(&irq_mapping_update_lock);
 
+	if (info->refcnt > 0) {
+		info->refcnt--;
+		if (info->refcnt != 0)
+			goto done;
+	}
+
 	if (VALID_EVTCHN(evtchn)) {
 		close.port = evtchn;
 		if (HYPERVISOR_event_channel_op(EVTCHNOP_close, &close) != 0)
@@ -970,6 +981,7 @@ static void unbind_from_irq(unsigned int irq)
 
 	xen_free_irq(irq);
 
+ done:
 	mutex_unlock(&irq_mapping_update_lock);
 }
 
@@ -1065,6 +1077,69 @@ void unbind_from_irqhandler(unsigned int irq, void *dev_id)
 }
 EXPORT_SYMBOL_GPL(unbind_from_irqhandler);
 
+int evtchn_make_refcounted(unsigned int evtchn)
+{
+	int irq = evtchn_to_irq[evtchn];
+	struct irq_info *info;
+
+	if (irq == -1)
+		return -ENOENT;
+
+	info = irq_get_handler_data(irq);
+
+	if (!info)
+		return -ENOENT;
+
+	WARN_ON(info->refcnt != -1);
+
+	info->refcnt = 1;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(evtchn_make_refcounted);
+
+int evtchn_get(unsigned int evtchn)
+{
+	int irq;
+	struct irq_info *info;
+	int err = -ENOENT;
+
+	if (evtchn >= NR_EVENT_CHANNELS)
+		return -EINVAL;
+
+	mutex_lock(&irq_mapping_update_lock);
+
+	irq = evtchn_to_irq[evtchn];
+	if (irq == -1)
+		goto done;
+
+	info = irq_get_handler_data(irq);
+
+	if (!info)
+		goto done;
+
+	err = -EINVAL;
+	if (info->refcnt <= 0)
+		goto done;
+
+	info->refcnt++;
+	err = 0;
+ done:
+	mutex_unlock(&irq_mapping_update_lock);
+
+	return err;
+}
+EXPORT_SYMBOL_GPL(evtchn_get);
+
+void evtchn_put(unsigned int evtchn)
+{
+	int irq = evtchn_to_irq[evtchn];
+	if (WARN_ON(irq == -1))
+		return;
+	unbind_from_irq(irq);
+}
+EXPORT_SYMBOL_GPL(evtchn_put);
+
 void xen_send_IPI_one(unsigned int cpu, enum ipi_vector vector)
 {
 	int irq = per_cpu(ipi_to_irq, cpu)[vector];
diff --git a/drivers/xen/evtchn.c b/drivers/xen/evtchn.c
index dbc13e94b612..b1f60a0c0bea 100644
--- a/drivers/xen/evtchn.c
+++ b/drivers/xen/evtchn.c
@@ -268,7 +268,7 @@ static int evtchn_bind_to_user(struct per_user_data *u, int port)
 	rc = bind_evtchn_to_irqhandler(port, evtchn_interrupt, IRQF_DISABLED,
 				       u->name, (void *)(unsigned long)port);
 	if (rc >= 0)
-		rc = 0;
+		rc = evtchn_make_refcounted(port);
 
 	return rc;
 }
diff --git a/drivers/xen/gntalloc.c b/drivers/xen/gntalloc.c
index e1c4c6e5b469..934985d14c24 100644
--- a/drivers/xen/gntalloc.c
+++ b/drivers/xen/gntalloc.c
@@ -74,7 +74,7 @@ MODULE_PARM_DESC(limit, "Maximum number of grants that may be allocated by "
 		"the gntalloc device");
 
 static LIST_HEAD(gref_list);
-static DEFINE_SPINLOCK(gref_lock);
+static DEFINE_MUTEX(gref_mutex);
 static int gref_size;
 
 struct notify_info {
@@ -99,6 +99,12 @@ struct gntalloc_file_private_data {
 	uint64_t index;
 };
 
+struct gntalloc_vma_private_data {
+	struct gntalloc_gref *gref;
+	int users;
+	int count;
+};
+
 static void __del_gref(struct gntalloc_gref *gref);
 
 static void do_cleanup(void)
@@ -143,15 +149,15 @@ static int add_grefs(struct ioctl_gntalloc_alloc_gref *op,
 	}
 
 	/* Add to gref lists. */
-	spin_lock(&gref_lock);
+	mutex_lock(&gref_mutex);
 	list_splice_tail(&queue_gref, &gref_list);
 	list_splice_tail(&queue_file, &priv->list);
-	spin_unlock(&gref_lock);
+	mutex_unlock(&gref_mutex);
 
 	return 0;
 
 undo:
-	spin_lock(&gref_lock);
+	mutex_lock(&gref_mutex);
 	gref_size -= (op->count - i);
 
 	list_for_each_entry(gref, &queue_file, next_file) {
@@ -167,7 +173,7 @@ undo:
 	 */
 	if (unlikely(!list_empty(&queue_gref)))
 		list_splice_tail(&queue_gref, &gref_list);
-	spin_unlock(&gref_lock);
+	mutex_unlock(&gref_mutex);
 	return rc;
 }
 
@@ -178,8 +184,10 @@ static void __del_gref(struct gntalloc_gref *gref)
 		tmp[gref->notify.pgoff] = 0;
 		kunmap(gref->page);
 	}
-	if (gref->notify.flags & UNMAP_NOTIFY_SEND_EVENT)
+	if (gref->notify.flags & UNMAP_NOTIFY_SEND_EVENT) {
 		notify_remote_via_evtchn(gref->notify.event);
+		evtchn_put(gref->notify.event);
+	}
 
 	gref->notify.flags = 0;
 
@@ -189,6 +197,8 @@ static void __del_gref(struct gntalloc_gref *gref)
 
 		if (!gnttab_end_foreign_access_ref(gref->gref_id, 0))
 			return;
+
+		gnttab_free_grant_reference(gref->gref_id);
 	}
 
 	gref_size--;
@@ -251,7 +261,7 @@ static int gntalloc_release(struct inode *inode, struct file *filp)
 
 	pr_debug("%s: priv %p\n", __func__, priv);
 
-	spin_lock(&gref_lock);
+	mutex_lock(&gref_mutex);
 	while (!list_empty(&priv->list)) {
 		gref = list_entry(priv->list.next,
 			struct gntalloc_gref, next_file);
@@ -261,7 +271,7 @@ static int gntalloc_release(struct inode *inode, struct file *filp)
 			__del_gref(gref);
 	}
 	kfree(priv);
-	spin_unlock(&gref_lock);
+	mutex_unlock(&gref_mutex);
 
 	return 0;
 }
@@ -286,21 +296,21 @@ static long gntalloc_ioctl_alloc(struct gntalloc_file_private_data *priv,
 		goto out;
 	}
 
-	spin_lock(&gref_lock);
+	mutex_lock(&gref_mutex);
 	/* Clean up pages that were at zero (local) users but were still mapped
 	 * by remote domains. Since those pages count towards the limit that we
 	 * are about to enforce, removing them here is a good idea.
 	 */
 	do_cleanup();
 	if (gref_size + op.count > limit) {
-		spin_unlock(&gref_lock);
+		mutex_unlock(&gref_mutex);
 		rc = -ENOSPC;
 		goto out_free;
 	}
 	gref_size += op.count;
 	op.index = priv->index;
 	priv->index += op.count * PAGE_SIZE;
-	spin_unlock(&gref_lock);
+	mutex_unlock(&gref_mutex);
 
 	rc = add_grefs(&op, gref_ids, priv);
 	if (rc < 0)
@@ -343,7 +353,7 @@ static long gntalloc_ioctl_dealloc(struct gntalloc_file_private_data *priv,
 		goto dealloc_grant_out;
 	}
 
-	spin_lock(&gref_lock);
+	mutex_lock(&gref_mutex);
 	gref = find_grefs(priv, op.index, op.count);
 	if (gref) {
 		/* Remove from the file list only, and decrease reference count.
@@ -363,7 +373,7 @@ static long gntalloc_ioctl_dealloc(struct gntalloc_file_private_data *priv,
 
 	do_cleanup();
 
-	spin_unlock(&gref_lock);
+	mutex_unlock(&gref_mutex);
 dealloc_grant_out:
 	return rc;
 }
@@ -383,7 +393,7 @@ static long gntalloc_ioctl_unmap_notify(struct gntalloc_file_private_data *priv,
 	index = op.index & ~(PAGE_SIZE - 1);
 	pgoff = op.index & (PAGE_SIZE - 1);
 
-	spin_lock(&gref_lock);
+	mutex_lock(&gref_mutex);
 
 	gref = find_grefs(priv, index, 1);
 	if (!gref) {
@@ -396,12 +406,30 @@ static long gntalloc_ioctl_unmap_notify(struct gntalloc_file_private_data *priv,
 		goto unlock_out;
 	}
 
+	/* We need to grab a reference to the event channel we are going to use
+	 * to send the notify before releasing the reference we may already have
+	 * (if someone has called this ioctl twice). This is required so that
+	 * it is possible to change the clear_byte part of the notification
+	 * without disturbing the event channel part, which may now be the last
+	 * reference to that event channel.
+	 */
+	if (op.action & UNMAP_NOTIFY_SEND_EVENT) {
+		if (evtchn_get(op.event_channel_port)) {
+			rc = -EINVAL;
+			goto unlock_out;
+		}
+	}
+
+	if (gref->notify.flags & UNMAP_NOTIFY_SEND_EVENT)
+		evtchn_put(gref->notify.event);
+
 	gref->notify.flags = op.action;
 	gref->notify.pgoff = pgoff;
 	gref->notify.event = op.event_channel_port;
 	rc = 0;
+
  unlock_out:
-	spin_unlock(&gref_lock);
+	mutex_unlock(&gref_mutex);
 	return rc;
 }
 
@@ -429,26 +457,40 @@ static long gntalloc_ioctl(struct file *filp, unsigned int cmd,
 
 static void gntalloc_vma_open(struct vm_area_struct *vma)
 {
-	struct gntalloc_gref *gref = vma->vm_private_data;
-	if (!gref)
+	struct gntalloc_vma_private_data *priv = vma->vm_private_data;
+
+	if (!priv)
 		return;
 
-	spin_lock(&gref_lock);
-	gref->users++;
-	spin_unlock(&gref_lock);
+	mutex_lock(&gref_mutex);
+	priv->users++;
+	mutex_unlock(&gref_mutex);
 }
 
 static void gntalloc_vma_close(struct vm_area_struct *vma)
 {
-	struct gntalloc_gref *gref = vma->vm_private_data;
-	if (!gref)
+	struct gntalloc_vma_private_data *priv = vma->vm_private_data;
+	struct gntalloc_gref *gref, *next;
+	int i;
+
+	if (!priv)
 		return;
 
-	spin_lock(&gref_lock);
-	gref->users--;
-	if (gref->users == 0)
-		__del_gref(gref);
-	spin_unlock(&gref_lock);
+	mutex_lock(&gref_mutex);
+	priv->users--;
+	if (priv->users == 0) {
+		gref = priv->gref;
+		for (i = 0; i < priv->count; i++) {
+			gref->users--;
+			next = list_entry(gref->next_gref.next,
+					  struct gntalloc_gref, next_gref);
+			if (gref->users == 0)
+				__del_gref(gref);
+			gref = next;
+		}
+		kfree(priv);
+	}
+	mutex_unlock(&gref_mutex);
 }
 
 static struct vm_operations_struct gntalloc_vmops = {
@@ -459,30 +501,41 @@ static struct vm_operations_struct gntalloc_vmops = {
 static int gntalloc_mmap(struct file *filp, struct vm_area_struct *vma)
 {
 	struct gntalloc_file_private_data *priv = filp->private_data;
+	struct gntalloc_vma_private_data *vm_priv;
 	struct gntalloc_gref *gref;
 	int count = (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
 	int rv, i;
 
-	pr_debug("%s: priv %p, page %lu+%d\n", __func__,
-		       priv, vma->vm_pgoff, count);
-
 	if (!(vma->vm_flags & VM_SHARED)) {
 		printk(KERN_ERR "%s: Mapping must be shared.\n", __func__);
 		return -EINVAL;
 	}
 
-	spin_lock(&gref_lock);
+	vm_priv = kmalloc(sizeof(*vm_priv), GFP_KERNEL);
+	if (!vm_priv)
+		return -ENOMEM;
+
+	mutex_lock(&gref_mutex);
+
+	pr_debug("%s: priv %p,%p, page %lu+%d\n", __func__,
+		       priv, vm_priv, vma->vm_pgoff, count);
+
 	gref = find_grefs(priv, vma->vm_pgoff << PAGE_SHIFT, count);
 	if (gref == NULL) {
 		rv = -ENOENT;
 		pr_debug("%s: Could not find grant reference",
 				__func__);
+		kfree(vm_priv);
 		goto out_unlock;
 	}
 
-	vma->vm_private_data = gref;
+	vm_priv->gref = gref;
+	vm_priv->users = 1;
+	vm_priv->count = count;
+
+	vma->vm_private_data = vm_priv;
 
-	vma->vm_flags |= VM_RESERVED;
+	vma->vm_flags |= VM_RESERVED | VM_DONTEXPAND;
 
 	vma->vm_ops = &gntalloc_vmops;
 
@@ -499,7 +552,7 @@ static int gntalloc_mmap(struct file *filp, struct vm_area_struct *vma)
 	rv = 0;
 
 out_unlock:
-	spin_unlock(&gref_lock);
+	mutex_unlock(&gref_mutex);
 	return rv;
 }
 
diff --git a/drivers/xen/gntdev.c b/drivers/xen/gntdev.c
index afca14d9042e..99d8151c824a 100644
--- a/drivers/xen/gntdev.c
+++ b/drivers/xen/gntdev.c
@@ -193,8 +193,10 @@ static void gntdev_put_map(struct grant_map *map)
 
 	atomic_sub(map->count, &pages_mapped);
 
-	if (map->notify.flags & UNMAP_NOTIFY_SEND_EVENT)
+	if (map->notify.flags & UNMAP_NOTIFY_SEND_EVENT) {
 		notify_remote_via_evtchn(map->notify.event);
+		evtchn_put(map->notify.event);
+	}
 
 	if (map->pages) {
 		if (!use_ptemod)
@@ -312,7 +314,8 @@ static int __unmap_grant_pages(struct grant_map *map, int offset, int pages)
 		}
 	}
 
-	err = gnttab_unmap_refs(map->unmap_ops + offset, map->pages + offset, pages);
+	err = gnttab_unmap_refs(map->unmap_ops + offset, map->pages + offset,
+				pages, true);
 	if (err)
 		return err;
 
@@ -599,6 +602,8 @@ static long gntdev_ioctl_notify(struct gntdev_priv *priv, void __user *u)
 	struct ioctl_gntdev_unmap_notify op;
 	struct grant_map *map;
 	int rc;
+	int out_flags;
+	unsigned int out_event;
 
 	if (copy_from_user(&op, u, sizeof(op)))
 		return -EFAULT;
@@ -606,6 +611,21 @@ static long gntdev_ioctl_notify(struct gntdev_priv *priv, void __user *u)
 	if (op.action & ~(UNMAP_NOTIFY_CLEAR_BYTE|UNMAP_NOTIFY_SEND_EVENT))
 		return -EINVAL;
 
+	/* We need to grab a reference to the event channel we are going to use
+	 * to send the notify before releasing the reference we may already have
+	 * (if someone has called this ioctl twice). This is required so that
+	 * it is possible to change the clear_byte part of the notification
+	 * without disturbing the event channel part, which may now be the last
+	 * reference to that event channel.
+	 */
+	if (op.action & UNMAP_NOTIFY_SEND_EVENT) {
+		if (evtchn_get(op.event_channel_port))
+			return -EINVAL;
+	}
+
+	out_flags = op.action;
+	out_event = op.event_channel_port;
+
 	spin_lock(&priv->lock);
 
 	list_for_each_entry(map, &priv->maps, next) {
@@ -624,12 +644,22 @@ static long gntdev_ioctl_notify(struct gntdev_priv *priv, void __user *u)
 		goto unlock_out;
 	}
 
+	out_flags = map->notify.flags;
+	out_event = map->notify.event;
+
 	map->notify.flags = op.action;
 	map->notify.addr = op.index - (map->index << PAGE_SHIFT);
 	map->notify.event = op.event_channel_port;
+
 	rc = 0;
+
  unlock_out:
 	spin_unlock(&priv->lock);
+
+	/* Drop the reference to the event channel we did not save in the map */
+	if (out_flags & UNMAP_NOTIFY_SEND_EVENT)
+		evtchn_put(out_event);
+
 	return rc;
 }
 
diff --git a/drivers/xen/grant-table.c b/drivers/xen/grant-table.c
index bf1c094f4ebf..1cd94daa71db 100644
--- a/drivers/xen/grant-table.c
+++ b/drivers/xen/grant-table.c
@@ -44,16 +44,19 @@
 #include <xen/page.h>
 #include <xen/grant_table.h>
 #include <xen/interface/memory.h>
+#include <xen/hvc-console.h>
 #include <asm/xen/hypercall.h>
 
 #include <asm/pgtable.h>
 #include <asm/sync_bitops.h>
 
-
 /* External tools reserve first few grant table entries. */
 #define NR_RESERVED_ENTRIES 8
 #define GNTTAB_LIST_END 0xffffffff
-#define GREFS_PER_GRANT_FRAME (PAGE_SIZE / sizeof(struct grant_entry))
+#define GREFS_PER_GRANT_FRAME \
+(grant_table_version == 1 ?                      \
+(PAGE_SIZE / sizeof(struct grant_entry_v1)) :   \
+(PAGE_SIZE / sizeof(union grant_entry_v2)))
 
 static grant_ref_t **gnttab_list;
 static unsigned int nr_grant_frames;
@@ -64,13 +67,97 @@ static DEFINE_SPINLOCK(gnttab_list_lock);
 unsigned long xen_hvm_resume_frames;
 EXPORT_SYMBOL_GPL(xen_hvm_resume_frames);
 
-static struct grant_entry *shared;
+static union {
+	struct grant_entry_v1 *v1;
+	union grant_entry_v2 *v2;
+	void *addr;
+} gnttab_shared;
+
+/*This is a structure of function pointers for grant table*/
+struct gnttab_ops {
+	/*
+	 * Mapping a list of frames for storing grant entries. Frames parameter
+	 * is used to store grant table address when grant table being setup,
+	 * nr_gframes is the number of frames to map grant table. Returning
+	 * GNTST_okay means success and negative value means failure.
+	 */
+	int (*map_frames)(unsigned long *frames, unsigned int nr_gframes);
+	/*
+	 * Release a list of frames which are mapped in map_frames for grant
+	 * entry status.
+	 */
+	void (*unmap_frames)(void);
+	/*
+	 * Introducing a valid entry into the grant table, granting the frame of
+	 * this grant entry to domain for accessing or transfering. Ref
+	 * parameter is reference of this introduced grant entry, domid is id of
+	 * granted domain, frame is the page frame to be granted, and flags is
+	 * status of the grant entry to be updated.
+	 */
+	void (*update_entry)(grant_ref_t ref, domid_t domid,
+			     unsigned long frame, unsigned flags);
+	/*
+	 * Stop granting a grant entry to domain for accessing. Ref parameter is
+	 * reference of a grant entry whose grant access will be stopped,
+	 * readonly is not in use in this function. If the grant entry is
+	 * currently mapped for reading or writing, just return failure(==0)
+	 * directly and don't tear down the grant access. Otherwise, stop grant
+	 * access for this entry and return success(==1).
+	 */
+	int (*end_foreign_access_ref)(grant_ref_t ref, int readonly);
+	/*
+	 * Stop granting a grant entry to domain for transfer. Ref parameter is
+	 * reference of a grant entry whose grant transfer will be stopped. If
+	 * tranfer has not started, just reclaim the grant entry and return
+	 * failure(==0). Otherwise, wait for the transfer to complete and then
+	 * return the frame.
+	 */
+	unsigned long (*end_foreign_transfer_ref)(grant_ref_t ref);
+	/*
+	 * Query the status of a grant entry. Ref parameter is reference of
+	 * queried grant entry, return value is the status of queried entry.
+	 * Detailed status(writing/reading) can be gotten from the return value
+	 * by bit operations.
+	 */
+	int (*query_foreign_access)(grant_ref_t ref);
+	/*
+	 * Grant a domain to access a range of bytes within the page referred by
+	 * an available grant entry. Ref parameter is reference of a grant entry
+	 * which will be sub-page accessed, domid is id of grantee domain, frame
+	 * is frame address of subpage grant, flags is grant type and flag
+	 * information, page_off is offset of the range of bytes, and length is
+	 * length of bytes to be accessed.
+	 */
+	void (*update_subpage_entry)(grant_ref_t ref, domid_t domid,
+				     unsigned long frame, int flags,
+				     unsigned page_off, unsigned length);
+	/*
+	 * Redirect an available grant entry on domain A to another grant
+	 * reference of domain B, then allow domain C to use grant reference
+	 * of domain B transitively. Ref parameter is an available grant entry
+	 * reference on domain A, domid is id of domain C which accesses grant
+	 * entry transitively, flags is grant type and flag information,
+	 * trans_domid is id of domain B whose grant entry is finally accessed
+	 * transitively, trans_gref is grant entry transitive reference of
+	 * domain B.
+	 */
+	void (*update_trans_entry)(grant_ref_t ref, domid_t domid, int flags,
+				   domid_t trans_domid, grant_ref_t trans_gref);
+};
+
+static struct gnttab_ops *gnttab_interface;
+
+/*This reflects status of grant entries, so act as a global value*/
+static grant_status_t *grstatus;
+
+static int grant_table_version;
 
 static struct gnttab_free_callback *gnttab_free_callback_list;
 
 static int gnttab_expand(unsigned int req_entries);
 
 #define RPP (PAGE_SIZE / sizeof(grant_ref_t))
+#define SPP (PAGE_SIZE / sizeof(grant_status_t))
 
 static inline grant_ref_t *__gnttab_entry(grant_ref_t entry)
 {
@@ -142,23 +229,33 @@ static void put_free_entry(grant_ref_t ref)
 	spin_unlock_irqrestore(&gnttab_list_lock, flags);
 }
 
-static void update_grant_entry(grant_ref_t ref, domid_t domid,
-			       unsigned long frame, unsigned flags)
+/*
+ * Following applies to gnttab_update_entry_v1 and gnttab_update_entry_v2.
+ * Introducing a valid entry into the grant table:
+ *  1. Write ent->domid.
+ *  2. Write ent->frame:
+ *      GTF_permit_access:   Frame to which access is permitted.
+ *      GTF_accept_transfer: Pseudo-phys frame slot being filled by new
+ *                           frame, or zero if none.
+ *  3. Write memory barrier (WMB).
+ *  4. Write ent->flags, inc. valid type.
+ */
+static void gnttab_update_entry_v1(grant_ref_t ref, domid_t domid,
+				   unsigned long frame, unsigned flags)
+{
+	gnttab_shared.v1[ref].domid = domid;
+	gnttab_shared.v1[ref].frame = frame;
+	wmb();
+	gnttab_shared.v1[ref].flags = flags;
+}
+
+static void gnttab_update_entry_v2(grant_ref_t ref, domid_t domid,
+				   unsigned long frame, unsigned flags)
 {
-	/*
-	 * Introducing a valid entry into the grant table:
-	 *  1. Write ent->domid.
-	 *  2. Write ent->frame:
-	 *      GTF_permit_access:   Frame to which access is permitted.
-	 *      GTF_accept_transfer: Pseudo-phys frame slot being filled by new
-	 *                           frame, or zero if none.
-	 *  3. Write memory barrier (WMB).
-	 *  4. Write ent->flags, inc. valid type.
-	 */
-	shared[ref].frame = frame;
-	shared[ref].domid = domid;
+	gnttab_shared.v2[ref].hdr.domid = domid;
+	gnttab_shared.v2[ref].full_page.frame = frame;
 	wmb();
-	shared[ref].flags = flags;
+	gnttab_shared.v2[ref].hdr.flags = GTF_permit_access | flags;
 }
 
 /*
@@ -167,7 +264,7 @@ static void update_grant_entry(grant_ref_t ref, domid_t domid,
 void gnttab_grant_foreign_access_ref(grant_ref_t ref, domid_t domid,
 				     unsigned long frame, int readonly)
 {
-	update_grant_entry(ref, domid, frame,
+	gnttab_interface->update_entry(ref, domid, frame,
 			   GTF_permit_access | (readonly ? GTF_readonly : 0));
 }
 EXPORT_SYMBOL_GPL(gnttab_grant_foreign_access_ref);
@@ -187,31 +284,184 @@ int gnttab_grant_foreign_access(domid_t domid, unsigned long frame,
 }
 EXPORT_SYMBOL_GPL(gnttab_grant_foreign_access);
 
-int gnttab_query_foreign_access(grant_ref_t ref)
+void gnttab_update_subpage_entry_v2(grant_ref_t ref, domid_t domid,
+				    unsigned long frame, int flags,
+				    unsigned page_off,
+				    unsigned length)
+{
+	gnttab_shared.v2[ref].sub_page.frame = frame;
+	gnttab_shared.v2[ref].sub_page.page_off = page_off;
+	gnttab_shared.v2[ref].sub_page.length = length;
+	gnttab_shared.v2[ref].hdr.domid = domid;
+	wmb();
+	gnttab_shared.v2[ref].hdr.flags =
+				GTF_permit_access | GTF_sub_page | flags;
+}
+
+int gnttab_grant_foreign_access_subpage_ref(grant_ref_t ref, domid_t domid,
+					    unsigned long frame, int flags,
+					    unsigned page_off,
+					    unsigned length)
 {
-	u16 nflags;
+	if (flags & (GTF_accept_transfer | GTF_reading |
+		     GTF_writing | GTF_transitive))
+		return -EPERM;
 
-	nflags = shared[ref].flags;
+	if (gnttab_interface->update_subpage_entry == NULL)
+		return -ENOSYS;
 
-	return nflags & (GTF_reading|GTF_writing);
+	gnttab_interface->update_subpage_entry(ref, domid, frame, flags,
+					       page_off, length);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(gnttab_grant_foreign_access_subpage_ref);
+
+int gnttab_grant_foreign_access_subpage(domid_t domid, unsigned long frame,
+					int flags, unsigned page_off,
+					unsigned length)
+{
+	int ref, rc;
+
+	ref = get_free_entries(1);
+	if (unlikely(ref < 0))
+		return -ENOSPC;
+
+	rc = gnttab_grant_foreign_access_subpage_ref(ref, domid, frame, flags,
+						     page_off, length);
+	if (rc < 0) {
+		put_free_entry(ref);
+		return rc;
+	}
+
+	return ref;
+}
+EXPORT_SYMBOL_GPL(gnttab_grant_foreign_access_subpage);
+
+bool gnttab_subpage_grants_available(void)
+{
+	return gnttab_interface->update_subpage_entry != NULL;
+}
+EXPORT_SYMBOL_GPL(gnttab_subpage_grants_available);
+
+void gnttab_update_trans_entry_v2(grant_ref_t ref, domid_t domid,
+				  int flags, domid_t trans_domid,
+				  grant_ref_t trans_gref)
+{
+	gnttab_shared.v2[ref].transitive.trans_domid = trans_domid;
+	gnttab_shared.v2[ref].transitive.gref = trans_gref;
+	gnttab_shared.v2[ref].hdr.domid = domid;
+	wmb();
+	gnttab_shared.v2[ref].hdr.flags =
+				GTF_permit_access | GTF_transitive | flags;
+}
+
+int gnttab_grant_foreign_access_trans_ref(grant_ref_t ref, domid_t domid,
+					  int flags, domid_t trans_domid,
+					  grant_ref_t trans_gref)
+{
+	if (flags & (GTF_accept_transfer | GTF_reading |
+		     GTF_writing | GTF_sub_page))
+		return -EPERM;
+
+	if (gnttab_interface->update_trans_entry == NULL)
+		return -ENOSYS;
+
+	gnttab_interface->update_trans_entry(ref, domid, flags, trans_domid,
+					     trans_gref);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(gnttab_grant_foreign_access_trans_ref);
+
+int gnttab_grant_foreign_access_trans(domid_t domid, int flags,
+				      domid_t trans_domid,
+				      grant_ref_t trans_gref)
+{
+	int ref, rc;
+
+	ref = get_free_entries(1);
+	if (unlikely(ref < 0))
+		return -ENOSPC;
+
+	rc = gnttab_grant_foreign_access_trans_ref(ref, domid, flags,
+						   trans_domid, trans_gref);
+	if (rc < 0) {
+		put_free_entry(ref);
+		return rc;
+	}
+
+	return ref;
+}
+EXPORT_SYMBOL_GPL(gnttab_grant_foreign_access_trans);
+
+bool gnttab_trans_grants_available(void)
+{
+	return gnttab_interface->update_trans_entry != NULL;
+}
+EXPORT_SYMBOL_GPL(gnttab_trans_grants_available);
+
+static int gnttab_query_foreign_access_v1(grant_ref_t ref)
+{
+	return gnttab_shared.v1[ref].flags & (GTF_reading|GTF_writing);
+}
+
+static int gnttab_query_foreign_access_v2(grant_ref_t ref)
+{
+	return grstatus[ref] & (GTF_reading|GTF_writing);
+}
+
+int gnttab_query_foreign_access(grant_ref_t ref)
+{
+	return gnttab_interface->query_foreign_access(ref);
 }
 EXPORT_SYMBOL_GPL(gnttab_query_foreign_access);
 
-int gnttab_end_foreign_access_ref(grant_ref_t ref, int readonly)
+static int gnttab_end_foreign_access_ref_v1(grant_ref_t ref, int readonly)
 {
 	u16 flags, nflags;
+	u16 *pflags;
 
-	nflags = shared[ref].flags;
+	pflags = &gnttab_shared.v1[ref].flags;
+	nflags = *pflags;
 	do {
 		flags = nflags;
 		if (flags & (GTF_reading|GTF_writing)) {
 			printk(KERN_ALERT "WARNING: g.e. still in use!\n");
 			return 0;
 		}
-	} while ((nflags = sync_cmpxchg(&shared[ref].flags, flags, 0)) != flags);
+	} while ((nflags = sync_cmpxchg(pflags, flags, 0)) != flags);
+
+	return 1;
+}
+
+static int gnttab_end_foreign_access_ref_v2(grant_ref_t ref, int readonly)
+{
+	gnttab_shared.v2[ref].hdr.flags = 0;
+	mb();
+	if (grstatus[ref] & (GTF_reading|GTF_writing)) {
+		return 0;
+	} else {
+		/* The read of grstatus needs to have acquire
+		semantics.  On x86, reads already have
+		that, and we just need to protect against
+		compiler reorderings.  On other
+		architectures we may need a full
+		barrier. */
+#ifdef CONFIG_X86
+		barrier();
+#else
+		mb();
+#endif
+	}
 
 	return 1;
 }
+
+int gnttab_end_foreign_access_ref(grant_ref_t ref, int readonly)
+{
+	return gnttab_interface->end_foreign_access_ref(ref, readonly);
+}
 EXPORT_SYMBOL_GPL(gnttab_end_foreign_access_ref);
 
 void gnttab_end_foreign_access(grant_ref_t ref, int readonly,
@@ -246,37 +496,76 @@ EXPORT_SYMBOL_GPL(gnttab_grant_foreign_transfer);
 void gnttab_grant_foreign_transfer_ref(grant_ref_t ref, domid_t domid,
 				       unsigned long pfn)
 {
-	update_grant_entry(ref, domid, pfn, GTF_accept_transfer);
+	gnttab_interface->update_entry(ref, domid, pfn, GTF_accept_transfer);
 }
 EXPORT_SYMBOL_GPL(gnttab_grant_foreign_transfer_ref);
 
-unsigned long gnttab_end_foreign_transfer_ref(grant_ref_t ref)
+static unsigned long gnttab_end_foreign_transfer_ref_v1(grant_ref_t ref)
 {
 	unsigned long frame;
 	u16           flags;
+	u16          *pflags;
+
+	pflags = &gnttab_shared.v1[ref].flags;
 
 	/*
 	 * If a transfer is not even yet started, try to reclaim the grant
 	 * reference and return failure (== 0).
 	 */
-	while (!((flags = shared[ref].flags) & GTF_transfer_committed)) {
-		if (sync_cmpxchg(&shared[ref].flags, flags, 0) == flags)
+	while (!((flags = *pflags) & GTF_transfer_committed)) {
+		if (sync_cmpxchg(pflags, flags, 0) == flags)
 			return 0;
 		cpu_relax();
 	}
 
 	/* If a transfer is in progress then wait until it is completed. */
 	while (!(flags & GTF_transfer_completed)) {
-		flags = shared[ref].flags;
+		flags = *pflags;
 		cpu_relax();
 	}
 
 	rmb();	/* Read the frame number /after/ reading completion status. */
-	frame = shared[ref].frame;
+	frame = gnttab_shared.v1[ref].frame;
+	BUG_ON(frame == 0);
+
+	return frame;
+}
+
+static unsigned long gnttab_end_foreign_transfer_ref_v2(grant_ref_t ref)
+{
+	unsigned long frame;
+	u16           flags;
+	u16          *pflags;
+
+	pflags = &gnttab_shared.v2[ref].hdr.flags;
+
+	/*
+	 * If a transfer is not even yet started, try to reclaim the grant
+	 * reference and return failure (== 0).
+	 */
+	while (!((flags = *pflags) & GTF_transfer_committed)) {
+		if (sync_cmpxchg(pflags, flags, 0) == flags)
+			return 0;
+		cpu_relax();
+	}
+
+	/* If a transfer is in progress then wait until it is completed. */
+	while (!(flags & GTF_transfer_completed)) {
+		flags = *pflags;
+		cpu_relax();
+	}
+
+	rmb();  /* Read the frame number /after/ reading completion status. */
+	frame = gnttab_shared.v2[ref].full_page.frame;
 	BUG_ON(frame == 0);
 
 	return frame;
 }
+
+unsigned long gnttab_end_foreign_transfer_ref(grant_ref_t ref)
+{
+	return gnttab_interface->end_foreign_transfer_ref(ref);
+}
 EXPORT_SYMBOL_GPL(gnttab_end_foreign_transfer_ref);
 
 unsigned long gnttab_end_foreign_transfer(grant_ref_t ref)
@@ -448,8 +737,8 @@ unsigned int gnttab_max_grant_frames(void)
 EXPORT_SYMBOL_GPL(gnttab_max_grant_frames);
 
 int gnttab_map_refs(struct gnttab_map_grant_ref *map_ops,
-			struct gnttab_map_grant_ref *kmap_ops,
-			struct page **pages, unsigned int count)
+		    struct gnttab_map_grant_ref *kmap_ops,
+		    struct page **pages, unsigned int count)
 {
 	int i, ret;
 	pte_t *pte;
@@ -472,24 +761,10 @@ int gnttab_map_refs(struct gnttab_map_grant_ref *map_ops,
 				(map_ops[i].host_addr & ~PAGE_MASK));
 			mfn = pte_mfn(*pte);
 		} else {
-			/* If you really wanted to do this:
-			 * mfn = PFN_DOWN(map_ops[i].dev_bus_addr);
-			 *
-			 * The reason we do not implement it is b/c on the
-			 * unmap path (gnttab_unmap_refs) we have no means of
-			 * checking whether the page is !GNTMAP_contains_pte.
-			 *
-			 * That is without some extra data-structure to carry
-			 * the struct page, bool clear_pte, and list_head next
-			 * tuples and deal with allocation/delallocation, etc.
-			 *
-			 * The users of this API set the GNTMAP_contains_pte
-			 * flag so lets just return not supported until it
-			 * becomes neccessary to implement.
-			 */
-			return -EOPNOTSUPP;
+			mfn = PFN_DOWN(map_ops[i].dev_bus_addr);
 		}
-		ret = m2p_add_override(mfn, pages[i], &kmap_ops[i]);
+		ret = m2p_add_override(mfn, pages[i], kmap_ops ?
+				       &kmap_ops[i] : NULL);
 		if (ret)
 			return ret;
 	}
@@ -499,7 +774,7 @@ int gnttab_map_refs(struct gnttab_map_grant_ref *map_ops,
 EXPORT_SYMBOL_GPL(gnttab_map_refs);
 
 int gnttab_unmap_refs(struct gnttab_unmap_grant_ref *unmap_ops,
-		struct page **pages, unsigned int count)
+		      struct page **pages, unsigned int count, bool clear_pte)
 {
 	int i, ret;
 
@@ -511,7 +786,7 @@ int gnttab_unmap_refs(struct gnttab_unmap_grant_ref *unmap_ops,
 		return ret;
 
 	for (i = 0; i < count; i++) {
-		ret = m2p_remove_override(pages[i], true /* clear the PTE */);
+		ret = m2p_remove_override(pages[i], clear_pte);
 		if (ret)
 			return ret;
 	}
@@ -520,6 +795,77 @@ int gnttab_unmap_refs(struct gnttab_unmap_grant_ref *unmap_ops,
 }
 EXPORT_SYMBOL_GPL(gnttab_unmap_refs);
 
+static unsigned nr_status_frames(unsigned nr_grant_frames)
+{
+	return (nr_grant_frames * GREFS_PER_GRANT_FRAME + SPP - 1) / SPP;
+}
+
+static int gnttab_map_frames_v1(unsigned long *frames, unsigned int nr_gframes)
+{
+	int rc;
+
+	rc = arch_gnttab_map_shared(frames, nr_gframes,
+				    gnttab_max_grant_frames(),
+				    &gnttab_shared.addr);
+	BUG_ON(rc);
+
+	return 0;
+}
+
+static void gnttab_unmap_frames_v1(void)
+{
+	arch_gnttab_unmap(gnttab_shared.addr, nr_grant_frames);
+}
+
+static int gnttab_map_frames_v2(unsigned long *frames, unsigned int nr_gframes)
+{
+	uint64_t *sframes;
+	unsigned int nr_sframes;
+	struct gnttab_get_status_frames getframes;
+	int rc;
+
+	nr_sframes = nr_status_frames(nr_gframes);
+
+	/* No need for kzalloc as it is initialized in following hypercall
+	 * GNTTABOP_get_status_frames.
+	 */
+	sframes = kmalloc(nr_sframes  * sizeof(uint64_t), GFP_ATOMIC);
+	if (!sframes)
+		return -ENOMEM;
+
+	getframes.dom        = DOMID_SELF;
+	getframes.nr_frames  = nr_sframes;
+	set_xen_guest_handle(getframes.frame_list, sframes);
+
+	rc = HYPERVISOR_grant_table_op(GNTTABOP_get_status_frames,
+				       &getframes, 1);
+	if (rc == -ENOSYS) {
+		kfree(sframes);
+		return -ENOSYS;
+	}
+
+	BUG_ON(rc || getframes.status);
+
+	rc = arch_gnttab_map_status(sframes, nr_sframes,
+				    nr_status_frames(gnttab_max_grant_frames()),
+				    &grstatus);
+	BUG_ON(rc);
+	kfree(sframes);
+
+	rc = arch_gnttab_map_shared(frames, nr_gframes,
+				    gnttab_max_grant_frames(),
+				    &gnttab_shared.addr);
+	BUG_ON(rc);
+
+	return 0;
+}
+
+static void gnttab_unmap_frames_v2(void)
+{
+	arch_gnttab_unmap(gnttab_shared.addr, nr_grant_frames);
+	arch_gnttab_unmap(grstatus, nr_status_frames(nr_grant_frames));
+}
+
 static int gnttab_map(unsigned int start_idx, unsigned int end_idx)
 {
 	struct gnttab_setup_table setup;
@@ -551,6 +897,9 @@ static int gnttab_map(unsigned int start_idx, unsigned int end_idx)
 		return rc;
 	}
 
+	/* No need for kzalloc as it is initialized in following hypercall
+	 * GNTTABOP_setup_table.
+	 */
 	frames = kmalloc(nr_gframes * sizeof(unsigned long), GFP_ATOMIC);
 	if (!frames)
 		return -ENOMEM;
@@ -567,19 +916,65 @@ static int gnttab_map(unsigned int start_idx, unsigned int end_idx)
 
 	BUG_ON(rc || setup.status);
 
-	rc = arch_gnttab_map_shared(frames, nr_gframes, gnttab_max_grant_frames(),
-				    &shared);
-	BUG_ON(rc);
+	rc = gnttab_interface->map_frames(frames, nr_gframes);
 
 	kfree(frames);
 
-	return 0;
+	return rc;
+}
+
+static struct gnttab_ops gnttab_v1_ops = {
+	.map_frames			= gnttab_map_frames_v1,
+	.unmap_frames			= gnttab_unmap_frames_v1,
+	.update_entry			= gnttab_update_entry_v1,
+	.end_foreign_access_ref		= gnttab_end_foreign_access_ref_v1,
+	.end_foreign_transfer_ref	= gnttab_end_foreign_transfer_ref_v1,
+	.query_foreign_access		= gnttab_query_foreign_access_v1,
+};
+
+static struct gnttab_ops gnttab_v2_ops = {
+	.map_frames			= gnttab_map_frames_v2,
+	.unmap_frames			= gnttab_unmap_frames_v2,
+	.update_entry			= gnttab_update_entry_v2,
+	.end_foreign_access_ref		= gnttab_end_foreign_access_ref_v2,
+	.end_foreign_transfer_ref	= gnttab_end_foreign_transfer_ref_v2,
+	.query_foreign_access		= gnttab_query_foreign_access_v2,
+	.update_subpage_entry		= gnttab_update_subpage_entry_v2,
+	.update_trans_entry		= gnttab_update_trans_entry_v2,
+};
+
+static void gnttab_request_version(void)
+{
+	int rc;
+	struct gnttab_set_version gsv;
+
+	gsv.version = 2;
+	rc = HYPERVISOR_grant_table_op(GNTTABOP_set_version, &gsv, 1);
+	if (rc == 0) {
+		grant_table_version = 2;
+		gnttab_interface = &gnttab_v2_ops;
+	} else if (grant_table_version == 2) {
+		/*
+		 * If we've already used version 2 features,
+		 * but then suddenly discover that they're not
+		 * available (e.g. migrating to an older
+		 * version of Xen), almost unbounded badness
+		 * can happen.
+		 */
+		panic("we need grant tables version 2, but only version 1 is available");
+	} else {
+		grant_table_version = 1;
+		gnttab_interface = &gnttab_v1_ops;
+	}
+	printk(KERN_INFO "Grant tables using version %d layout.\n",
+		grant_table_version);
 }
 
 int gnttab_resume(void)
 {
 	unsigned int max_nr_gframes;
 
+	gnttab_request_version();
 	max_nr_gframes = gnttab_max_grant_frames();
 	if (max_nr_gframes < nr_grant_frames)
 		return -ENOSYS;
@@ -587,9 +982,10 @@ int gnttab_resume(void)
 	if (xen_pv_domain())
 		return gnttab_map(0, nr_grant_frames - 1);
 
-	if (!shared) {
-		shared = ioremap(xen_hvm_resume_frames, PAGE_SIZE * max_nr_gframes);
-		if (shared == NULL) {
+	if (gnttab_shared.addr == NULL) {
+		gnttab_shared.addr = ioremap(xen_hvm_resume_frames,
+						PAGE_SIZE * max_nr_gframes);
+		if (gnttab_shared.addr == NULL) {
 			printk(KERN_WARNING
 					"Failed to ioremap gnttab share frames!");
 			return -ENOMEM;
@@ -603,7 +999,7 @@ int gnttab_resume(void)
 
 int gnttab_suspend(void)
 {
-	arch_gnttab_unmap_shared(shared, nr_grant_frames);
+	gnttab_interface->unmap_frames();
 	return 0;
 }
 
diff --git a/drivers/xen/xenfs/privcmd.c b/drivers/xen/privcmd.c
index dbd3b16fd131..ccee0f16bcf8 100644
--- a/drivers/xen/xenfs/privcmd.c
+++ b/drivers/xen/privcmd.c
@@ -7,6 +7,7 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/module.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/string.h>
@@ -18,6 +19,7 @@
 #include <linux/highmem.h>
 #include <linux/pagemap.h>
 #include <linux/seq_file.h>
+#include <linux/miscdevice.h>
 
 #include <asm/pgalloc.h>
 #include <asm/pgtable.h>
@@ -32,6 +34,10 @@
 #include <xen/page.h>
 #include <xen/xen-ops.h>
 
+#include "privcmd.h"
+
+MODULE_LICENSE("GPL");
+
 #ifndef HAVE_ARCH_PRIVCMD_MMAP
 static int privcmd_enforce_singleshot_mapping(struct vm_area_struct *vma);
 #endif
@@ -359,7 +365,6 @@ static long privcmd_ioctl(struct file *file,
 	return ret;
 }
 
-#ifndef HAVE_ARCH_PRIVCMD_MMAP
 static int privcmd_fault(struct vm_area_struct *vma, struct vm_fault *vmf)
 {
 	printk(KERN_DEBUG "privcmd_fault: vma=%p %lx-%lx, pgoff=%lx, uv=%p\n",
@@ -392,9 +397,39 @@ static int privcmd_enforce_singleshot_mapping(struct vm_area_struct *vma)
 {
 	return (xchg(&vma->vm_private_data, (void *)1) == NULL);
 }
-#endif
 
-const struct file_operations privcmd_file_ops = {
+const struct file_operations xen_privcmd_fops = {
+	.owner = THIS_MODULE,
 	.unlocked_ioctl = privcmd_ioctl,
 	.mmap = privcmd_mmap,
 };
+EXPORT_SYMBOL_GPL(xen_privcmd_fops);
+
+static struct miscdevice privcmd_dev = {
+	.minor = MISC_DYNAMIC_MINOR,
+	.name = "xen/privcmd",
+	.fops = &xen_privcmd_fops,
+};
+
+static int __init privcmd_init(void)
+{
+	int err;
+
+	if (!xen_domain())
+		return -ENODEV;
+
+	err = misc_register(&privcmd_dev);
+	if (err != 0) {
+		printk(KERN_ERR "Could not register Xen privcmd device\n");
+		return err;
+	}
+	return 0;
+}
+
+static void __exit privcmd_exit(void)
+{
+	misc_deregister(&privcmd_dev);
+}
+
+module_init(privcmd_init);
+module_exit(privcmd_exit);
diff --git a/drivers/xen/privcmd.h b/drivers/xen/privcmd.h
new file mode 100644
index 000000000000..14facaeed36f
--- /dev/null
+++ b/drivers/xen/privcmd.h
@@ -0,0 +1,3 @@
+#include <linux/fs.h>
+
+extern const struct file_operations xen_privcmd_fops;
diff --git a/drivers/xen/swiotlb-xen.c b/drivers/xen/swiotlb-xen.c
index 284798aaf8b1..19e6a2041371 100644
--- a/drivers/xen/swiotlb-xen.c
+++ b/drivers/xen/swiotlb-xen.c
@@ -153,7 +153,7 @@ void __init xen_swiotlb_init(int verbose)
 	char *m = NULL;
 	unsigned int repeat = 3;
 
-	nr_tbl = swioltb_nr_tbl();
+	nr_tbl = swiotlb_nr_tbl();
 	if (nr_tbl)
 		xen_io_tlb_nslabs = nr_tbl;
 	else {
diff --git a/drivers/xen/xen-pciback/pci_stub.c b/drivers/xen/xen-pciback/pci_stub.c
index 8f06e1ed028c..7944a17f5cbf 100644
--- a/drivers/xen/xen-pciback/pci_stub.c
+++ b/drivers/xen/xen-pciback/pci_stub.c
@@ -99,6 +99,7 @@ static void pcistub_device_release(struct kref *kref)
 	kfree(pci_get_drvdata(psdev->dev));
 	pci_set_drvdata(psdev->dev, NULL);
 
+	psdev->dev->dev_flags &= ~PCI_DEV_FLAGS_ASSIGNED;
 	pci_dev_put(psdev->dev);
 
 	kfree(psdev);
@@ -234,6 +235,8 @@ void pcistub_put_pci_dev(struct pci_dev *dev)
 	xen_pcibk_config_free_dyn_fields(found_psdev->dev);
 	xen_pcibk_config_reset_dev(found_psdev->dev);
 
+	xen_unregister_device_domain_owner(found_psdev->dev);
+
 	spin_lock_irqsave(&found_psdev->lock, flags);
 	found_psdev->pdev = NULL;
 	spin_unlock_irqrestore(&found_psdev->lock, flags);
@@ -331,6 +334,7 @@ static int __devinit pcistub_init_device(struct pci_dev *dev)
 	dev_dbg(&dev->dev, "reset device\n");
 	xen_pcibk_reset_device(dev);
 
+	dev->dev_flags |= PCI_DEV_FLAGS_ASSIGNED;
 	return 0;
 
 config_release:
diff --git a/drivers/xen/xen-pciback/xenbus.c b/drivers/xen/xen-pciback/xenbus.c
index 075525945e36..8e1c44d8ab46 100644
--- a/drivers/xen/xen-pciback/xenbus.c
+++ b/drivers/xen/xen-pciback/xenbus.c
@@ -241,11 +241,10 @@ static int xen_pcibk_export_device(struct xen_pcibk_device *pdev,
 		goto out;
 
 	dev_dbg(&dev->dev, "registering for %d\n", pdev->xdev->otherend_id);
-	dev->dev_flags |= PCI_DEV_FLAGS_ASSIGNED;
 	if (xen_register_device_domain_owner(dev,
 					     pdev->xdev->otherend_id) != 0) {
-		dev_err(&dev->dev, "device has been assigned to another " \
-			"domain! Over-writting the ownership, but beware.\n");
+		dev_err(&dev->dev, "Stealing ownership from dom%d.\n",
+			xen_find_device_domain_owner(dev));
 		xen_unregister_device_domain_owner(dev);
 		xen_register_device_domain_owner(dev, pdev->xdev->otherend_id);
 	}
@@ -281,7 +280,6 @@ static int xen_pcibk_remove_device(struct xen_pcibk_device *pdev,
 	}
 
 	dev_dbg(&dev->dev, "unregistering for %d\n", pdev->xdev->otherend_id);
-	dev->dev_flags &= ~PCI_DEV_FLAGS_ASSIGNED;
 	xen_unregister_device_domain_owner(dev);
 
 	xen_pcibk_release_pci_dev(pdev, dev);
@@ -707,19 +705,16 @@ static int xen_pcibk_xenbus_remove(struct xenbus_device *dev)
 	return 0;
 }
 
-static const struct xenbus_device_id xenpci_ids[] = {
+static const struct xenbus_device_id xen_pcibk_ids[] = {
 	{"pci"},
 	{""},
 };
 
-static struct xenbus_driver xenbus_xen_pcibk_driver = {
-	.name			= DRV_NAME,
-	.owner			= THIS_MODULE,
-	.ids			= xenpci_ids,
+static DEFINE_XENBUS_DRIVER(xen_pcibk, DRV_NAME,
 	.probe			= xen_pcibk_xenbus_probe,
 	.remove			= xen_pcibk_xenbus_remove,
 	.otherend_changed	= xen_pcibk_frontend_changed,
-};
+);
 
 const struct xen_pcibk_backend *__read_mostly xen_pcibk_backend;
 
@@ -735,11 +730,11 @@ int __init xen_pcibk_xenbus_register(void)
 	if (passthrough)
 		xen_pcibk_backend = &xen_pcibk_passthrough_backend;
 	pr_info(DRV_NAME ": backend is %s\n", xen_pcibk_backend->name);
-	return xenbus_register_backend(&xenbus_xen_pcibk_driver);
+	return xenbus_register_backend(&xen_pcibk_driver);
 }
 
 void __exit xen_pcibk_xenbus_unregister(void)
 {
 	destroy_workqueue(xen_pcibk_wq);
-	xenbus_unregister_driver(&xenbus_xen_pcibk_driver);
+	xenbus_unregister_driver(&xen_pcibk_driver);
 }
diff --git a/drivers/xen/xenbus/Makefile b/drivers/xen/xenbus/Makefile
index 8dca685358b4..31e2e9050c7a 100644
--- a/drivers/xen/xenbus/Makefile
+++ b/drivers/xen/xenbus/Makefile
@@ -1,4 +1,5 @@
 obj-y	+= xenbus.o
+obj-y	+= xenbus_dev_frontend.o
 
 xenbus-objs =
 xenbus-objs += xenbus_client.o
@@ -9,4 +10,5 @@ xenbus-objs += xenbus_probe.o
 xenbus-be-objs-$(CONFIG_XEN_BACKEND) += xenbus_probe_backend.o
 xenbus-objs += $(xenbus-be-objs-y)
 
+obj-$(CONFIG_XEN_BACKEND) += xenbus_dev_backend.o
 obj-$(CONFIG_XEN_XENBUS_FRONTEND) += xenbus_probe_frontend.o
diff --git a/drivers/xen/xenbus/xenbus_client.c b/drivers/xen/xenbus/xenbus_client.c
index 1906125eab49..566d2adbd6ea 100644
--- a/drivers/xen/xenbus/xenbus_client.c
+++ b/drivers/xen/xenbus/xenbus_client.c
@@ -32,15 +32,39 @@
 
 #include <linux/slab.h>
 #include <linux/types.h>
+#include <linux/spinlock.h>
 #include <linux/vmalloc.h>
 #include <linux/export.h>
 #include <asm/xen/hypervisor.h>
 #include <asm/xen/page.h>
 #include <xen/interface/xen.h>
 #include <xen/interface/event_channel.h>
+#include <xen/balloon.h>
 #include <xen/events.h>
 #include <xen/grant_table.h>
 #include <xen/xenbus.h>
+#include <xen/xen.h>
+
+#include "xenbus_probe.h"
+
+struct xenbus_map_node {
+	struct list_head next;
+	union {
+		struct vm_struct *area; /* PV */
+		struct page *page;     /* HVM */
+	};
+	grant_handle_t handle;
+};
+
+static DEFINE_SPINLOCK(xenbus_valloc_lock);
+static LIST_HEAD(xenbus_valloc_pages);
+
+struct xenbus_ring_ops {
+	int (*map)(struct xenbus_device *dev, int gnt, void **vaddr);
+	int (*unmap)(struct xenbus_device *dev, void *vaddr);
+};
+
+static const struct xenbus_ring_ops *ring_ops __read_mostly;
 
 const char *xenbus_strstate(enum xenbus_state state)
 {
@@ -436,19 +460,33 @@ EXPORT_SYMBOL_GPL(xenbus_free_evtchn);
  */
 int xenbus_map_ring_valloc(struct xenbus_device *dev, int gnt_ref, void **vaddr)
 {
+	return ring_ops->map(dev, gnt_ref, vaddr);
+}
+EXPORT_SYMBOL_GPL(xenbus_map_ring_valloc);
+
+static int xenbus_map_ring_valloc_pv(struct xenbus_device *dev,
+				     int gnt_ref, void **vaddr)
+{
 	struct gnttab_map_grant_ref op = {
 		.flags = GNTMAP_host_map | GNTMAP_contains_pte,
 		.ref   = gnt_ref,
 		.dom   = dev->otherend_id,
 	};
+	struct xenbus_map_node *node;
 	struct vm_struct *area;
 	pte_t *pte;
 
 	*vaddr = NULL;
 
+	node = kzalloc(sizeof(*node), GFP_KERNEL);
+	if (!node)
+		return -ENOMEM;
+
 	area = alloc_vm_area(PAGE_SIZE, &pte);
-	if (!area)
+	if (!area) {
+		kfree(node);
 		return -ENOMEM;
+	}
 
 	op.host_addr = arbitrary_virt_to_machine(pte).maddr;
 
@@ -457,19 +495,59 @@ int xenbus_map_ring_valloc(struct xenbus_device *dev, int gnt_ref, void **vaddr)
 
 	if (op.status != GNTST_okay) {
 		free_vm_area(area);
+		kfree(node);
 		xenbus_dev_fatal(dev, op.status,
 				 "mapping in shared page %d from domain %d",
 				 gnt_ref, dev->otherend_id);
 		return op.status;
 	}
 
-	/* Stuff the handle in an unused field */
-	area->phys_addr = (unsigned long)op.handle;
+	node->handle = op.handle;
+	node->area = area;
+
+	spin_lock(&xenbus_valloc_lock);
+	list_add(&node->next, &xenbus_valloc_pages);
+	spin_unlock(&xenbus_valloc_lock);
 
 	*vaddr = area->addr;
 	return 0;
 }
-EXPORT_SYMBOL_GPL(xenbus_map_ring_valloc);
+
+static int xenbus_map_ring_valloc_hvm(struct xenbus_device *dev,
+				      int gnt_ref, void **vaddr)
+{
+	struct xenbus_map_node *node;
+	int err;
+	void *addr;
+
+	*vaddr = NULL;
+
+	node = kzalloc(sizeof(*node), GFP_KERNEL);
+	if (!node)
+		return -ENOMEM;
+
+	err = alloc_xenballooned_pages(1, &node->page, false /* lowmem */);
+	if (err)
+		goto out_err;
+
+	addr = pfn_to_kaddr(page_to_pfn(node->page));
+
+	err = xenbus_map_ring(dev, gnt_ref, &node->handle, addr);
+	if (err)
+		goto out_err;
+
+	spin_lock(&xenbus_valloc_lock);
+	list_add(&node->next, &xenbus_valloc_pages);
+	spin_unlock(&xenbus_valloc_lock);
+
+	*vaddr = addr;
+	return 0;
+
+ out_err:
+	free_xenballooned_pages(1, &node->page);
+	kfree(node);
+	return err;
+}
 
 
 /**
@@ -489,12 +567,10 @@ EXPORT_SYMBOL_GPL(xenbus_map_ring_valloc);
 int xenbus_map_ring(struct xenbus_device *dev, int gnt_ref,
 		    grant_handle_t *handle, void *vaddr)
 {
-	struct gnttab_map_grant_ref op = {
-		.host_addr = (unsigned long)vaddr,
-		.flags     = GNTMAP_host_map,
-		.ref       = gnt_ref,
-		.dom       = dev->otherend_id,
-	};
+	struct gnttab_map_grant_ref op;
+
+	gnttab_set_map_op(&op, (phys_addr_t)vaddr, GNTMAP_host_map, gnt_ref,
+			  dev->otherend_id);
 
 	if (HYPERVISOR_grant_table_op(GNTTABOP_map_grant_ref, &op, 1))
 		BUG();
@@ -525,32 +601,36 @@ EXPORT_SYMBOL_GPL(xenbus_map_ring);
  */
 int xenbus_unmap_ring_vfree(struct xenbus_device *dev, void *vaddr)
 {
-	struct vm_struct *area;
+	return ring_ops->unmap(dev, vaddr);
+}
+EXPORT_SYMBOL_GPL(xenbus_unmap_ring_vfree);
+
+static int xenbus_unmap_ring_vfree_pv(struct xenbus_device *dev, void *vaddr)
+{
+	struct xenbus_map_node *node;
 	struct gnttab_unmap_grant_ref op = {
 		.host_addr = (unsigned long)vaddr,
 	};
 	unsigned int level;
 
-	/* It'd be nice if linux/vmalloc.h provided a find_vm_area(void *addr)
-	 * method so that we don't have to muck with vmalloc internals here.
-	 * We could force the user to hang on to their struct vm_struct from
-	 * xenbus_map_ring_valloc, but these 6 lines considerably simplify
-	 * this API.
-	 */
-	read_lock(&vmlist_lock);
-	for (area = vmlist; area != NULL; area = area->next) {
-		if (area->addr == vaddr)
-			break;
+	spin_lock(&xenbus_valloc_lock);
+	list_for_each_entry(node, &xenbus_valloc_pages, next) {
+		if (node->area->addr == vaddr) {
+			list_del(&node->next);
+			goto found;
+		}
 	}
-	read_unlock(&vmlist_lock);
+	node = NULL;
+ found:
+	spin_unlock(&xenbus_valloc_lock);
 
-	if (!area) {
+	if (!node) {
 		xenbus_dev_error(dev, -ENOENT,
 				 "can't find mapped virtual address %p", vaddr);
 		return GNTST_bad_virt_addr;
 	}
 
-	op.handle = (grant_handle_t)area->phys_addr;
+	op.handle = node->handle;
 	op.host_addr = arbitrary_virt_to_machine(
 		lookup_address((unsigned long)vaddr, &level)).maddr;
 
@@ -558,16 +638,50 @@ int xenbus_unmap_ring_vfree(struct xenbus_device *dev, void *vaddr)
 		BUG();
 
 	if (op.status == GNTST_okay)
-		free_vm_area(area);
+		free_vm_area(node->area);
 	else
 		xenbus_dev_error(dev, op.status,
 				 "unmapping page at handle %d error %d",
-				 (int16_t)area->phys_addr, op.status);
+				 node->handle, op.status);
 
+	kfree(node);
 	return op.status;
 }
-EXPORT_SYMBOL_GPL(xenbus_unmap_ring_vfree);
 
+static int xenbus_unmap_ring_vfree_hvm(struct xenbus_device *dev, void *vaddr)
+{
+	int rv;
+	struct xenbus_map_node *node;
+	void *addr;
+
+	spin_lock(&xenbus_valloc_lock);
+	list_for_each_entry(node, &xenbus_valloc_pages, next) {
+		addr = pfn_to_kaddr(page_to_pfn(node->page));
+		if (addr == vaddr) {
+			list_del(&node->next);
+			goto found;
+		}
+	}
+	node = NULL;
+ found:
+	spin_unlock(&xenbus_valloc_lock);
+
+	if (!node) {
+		xenbus_dev_error(dev, -ENOENT,
+				 "can't find mapped virtual address %p", vaddr);
+		return GNTST_bad_virt_addr;
+	}
+
+	rv = xenbus_unmap_ring(dev, node->handle, addr);
+
+	if (!rv)
+		free_xenballooned_pages(1, &node->page);
+	else
+		WARN(1, "Leaking %p\n", vaddr);
+
+	kfree(node);
+	return rv;
+}
 
 /**
  * xenbus_unmap_ring
@@ -582,10 +696,9 @@ EXPORT_SYMBOL_GPL(xenbus_unmap_ring_vfree);
 int xenbus_unmap_ring(struct xenbus_device *dev,
 		      grant_handle_t handle, void *vaddr)
 {
-	struct gnttab_unmap_grant_ref op = {
-		.host_addr = (unsigned long)vaddr,
-		.handle    = handle,
-	};
+	struct gnttab_unmap_grant_ref op;
+
+	gnttab_set_unmap_op(&op, (phys_addr_t)vaddr, GNTMAP_host_map, handle);
 
 	if (HYPERVISOR_grant_table_op(GNTTABOP_unmap_grant_ref, &op, 1))
 		BUG();
@@ -617,3 +730,21 @@ enum xenbus_state xenbus_read_driver_state(const char *path)
 	return result;
 }
 EXPORT_SYMBOL_GPL(xenbus_read_driver_state);
+
+static const struct xenbus_ring_ops ring_ops_pv = {
+	.map = xenbus_map_ring_valloc_pv,
+	.unmap = xenbus_unmap_ring_vfree_pv,
+};
+
+static const struct xenbus_ring_ops ring_ops_hvm = {
+	.map = xenbus_map_ring_valloc_hvm,
+	.unmap = xenbus_unmap_ring_vfree_hvm,
+};
+
+void __init xenbus_ring_ops_init(void)
+{
+	if (xen_pv_domain())
+		ring_ops = &ring_ops_pv;
+	else
+		ring_ops = &ring_ops_hvm;
+}
diff --git a/drivers/xen/xenbus/xenbus_comms.h b/drivers/xen/xenbus/xenbus_comms.h
index c21db7513736..6e42800fa499 100644
--- a/drivers/xen/xenbus/xenbus_comms.h
+++ b/drivers/xen/xenbus/xenbus_comms.h
@@ -31,6 +31,8 @@
 #ifndef _XENBUS_COMMS_H
 #define _XENBUS_COMMS_H
 
+#include <linux/fs.h>
+
 int xs_init(void);
 int xb_init_comms(void);
 
@@ -43,4 +45,6 @@ int xs_input_avail(void);
 extern struct xenstore_domain_interface *xen_store_interface;
 extern int xen_store_evtchn;
 
+extern const struct file_operations xen_xenbus_fops;
+
 #endif /* _XENBUS_COMMS_H */
diff --git a/drivers/xen/xenbus/xenbus_dev_backend.c b/drivers/xen/xenbus/xenbus_dev_backend.c
new file mode 100644
index 000000000000..3d3be78c1093
--- /dev/null
+++ b/drivers/xen/xenbus/xenbus_dev_backend.c
@@ -0,0 +1,90 @@
+#include <linux/slab.h>
+#include <linux/types.h>
+#include <linux/mm.h>
+#include <linux/fs.h>
+#include <linux/miscdevice.h>
+#include <linux/module.h>
+#include <linux/capability.h>
+
+#include <xen/xen.h>
+#include <xen/page.h>
+#include <xen/xenbus_dev.h>
+
+#include "xenbus_comms.h"
+
+MODULE_LICENSE("GPL");
+
+static int xenbus_backend_open(struct inode *inode, struct file *filp)
+{
+	if (!capable(CAP_SYS_ADMIN))
+		return -EPERM;
+
+	return nonseekable_open(inode, filp);
+}
+
+static long xenbus_backend_ioctl(struct file *file, unsigned int cmd, unsigned long data)
+{
+	if (!capable(CAP_SYS_ADMIN))
+		return -EPERM;
+
+	switch (cmd) {
+		case IOCTL_XENBUS_BACKEND_EVTCHN:
+			if (xen_store_evtchn > 0)
+				return xen_store_evtchn;
+			return -ENODEV;
+
+		default:
+			return -ENOTTY;
+	}
+}
+
+static int xenbus_backend_mmap(struct file *file, struct vm_area_struct *vma)
+{
+	size_t size = vma->vm_end - vma->vm_start;
+
+	if (!capable(CAP_SYS_ADMIN))
+		return -EPERM;
+
+	if ((size > PAGE_SIZE) || (vma->vm_pgoff != 0))
+		return -EINVAL;
+
+	if (remap_pfn_range(vma, vma->vm_start,
+			    virt_to_pfn(xen_store_interface),
+			    size, vma->vm_page_prot))
+		return -EAGAIN;
+
+	return 0;
+}
+
+const struct file_operations xenbus_backend_fops = {
+	.open = xenbus_backend_open,
+	.mmap = xenbus_backend_mmap,
+	.unlocked_ioctl = xenbus_backend_ioctl,
+};
+
+static struct miscdevice xenbus_backend_dev = {
+	.minor = MISC_DYNAMIC_MINOR,
+	.name = "xen/xenbus_backend",
+	.fops = &xenbus_backend_fops,
+};
+
+static int __init xenbus_backend_init(void)
+{
+	int err;
+
+	if (!xen_initial_domain())
+		return -ENODEV;
+
+	err = misc_register(&xenbus_backend_dev);
+	if (err)
+		printk(KERN_ERR "Could not register xenbus backend device\n");
+	return err;
+}
+
+static void __exit xenbus_backend_exit(void)
+{
+	misc_deregister(&xenbus_backend_dev);
+}
+
+module_init(xenbus_backend_init);
+module_exit(xenbus_backend_exit);
diff --git a/drivers/xen/xenfs/xenbus.c b/drivers/xen/xenbus/xenbus_dev_frontend.c
index bbd000f88af7..527dc2a3b89f 100644
--- a/drivers/xen/xenfs/xenbus.c
+++ b/drivers/xen/xenbus/xenbus_dev_frontend.c
@@ -52,13 +52,17 @@
 #include <linux/namei.h>
 #include <linux/string.h>
 #include <linux/slab.h>
+#include <linux/miscdevice.h>
+#include <linux/module.h>
 
-#include "xenfs.h"
-#include "../xenbus/xenbus_comms.h"
+#include "xenbus_comms.h"
 
 #include <xen/xenbus.h>
+#include <xen/xen.h>
 #include <asm/xen/hypervisor.h>
 
+MODULE_LICENSE("GPL");
+
 /*
  * An element of a list of outstanding transactions, for which we're
  * still waiting a reply.
@@ -101,7 +105,7 @@ struct xenbus_file_priv {
 	unsigned int len;
 	union {
 		struct xsd_sockmsg msg;
-		char buffer[PAGE_SIZE];
+		char buffer[XENSTORE_PAYLOAD_MAX];
 	} u;
 
 	/* Response queue. */
@@ -583,7 +587,7 @@ static unsigned int xenbus_file_poll(struct file *file, poll_table *wait)
 	return 0;
 }
 
-const struct file_operations xenbus_file_ops = {
+const struct file_operations xen_xenbus_fops = {
 	.read = xenbus_file_read,
 	.write = xenbus_file_write,
 	.open = xenbus_file_open,
@@ -591,3 +595,31 @@ const struct file_operations xenbus_file_ops = {
 	.poll = xenbus_file_poll,
 	.llseek = no_llseek,
 };
+EXPORT_SYMBOL_GPL(xen_xenbus_fops);
+
+static struct miscdevice xenbus_dev = {
+	.minor = MISC_DYNAMIC_MINOR,
+	.name = "xen/xenbus",
+	.fops = &xen_xenbus_fops,
+};
+
+static int __init xenbus_init(void)
+{
+	int err;
+
+	if (!xen_domain())
+		return -ENODEV;
+
+	err = misc_register(&xenbus_dev);
+	if (err)
+		printk(KERN_ERR "Could not register xenbus frontend device\n");
+	return err;
+}
+
+static void __exit xenbus_exit(void)
+{
+	misc_deregister(&xenbus_dev);
+}
+
+module_init(xenbus_init);
+module_exit(xenbus_exit);
diff --git a/drivers/xen/xenbus/xenbus_probe.c b/drivers/xen/xenbus/xenbus_probe.c
index 1b178c6e8937..3864967202b5 100644
--- a/drivers/xen/xenbus/xenbus_probe.c
+++ b/drivers/xen/xenbus/xenbus_probe.c
@@ -291,14 +291,9 @@ void xenbus_dev_shutdown(struct device *_dev)
 EXPORT_SYMBOL_GPL(xenbus_dev_shutdown);
 
 int xenbus_register_driver_common(struct xenbus_driver *drv,
-				  struct xen_bus_type *bus,
-				  struct module *owner,
-				  const char *mod_name)
+				  struct xen_bus_type *bus)
 {
-	drv->driver.name = drv->name;
 	drv->driver.bus = &bus->bus;
-	drv->driver.owner = owner;
-	drv->driver.mod_name = mod_name;
 
 	return driver_register(&drv->driver);
 }
@@ -730,6 +725,8 @@ static int __init xenbus_init(void)
 	if (!xen_domain())
 		return -ENODEV;
 
+	xenbus_ring_ops_init();
+
 	if (xen_hvm_domain()) {
 		uint64_t v = 0;
 		err = hvm_get_parameter(HVM_PARAM_STORE_EVTCHN, &v);
diff --git a/drivers/xen/xenbus/xenbus_probe.h b/drivers/xen/xenbus/xenbus_probe.h
index 9b1de4e34c64..bb4f92ed8730 100644
--- a/drivers/xen/xenbus/xenbus_probe.h
+++ b/drivers/xen/xenbus/xenbus_probe.h
@@ -53,9 +53,7 @@ extern int xenbus_match(struct device *_dev, struct device_driver *_drv);
 extern int xenbus_dev_probe(struct device *_dev);
 extern int xenbus_dev_remove(struct device *_dev);
 extern int xenbus_register_driver_common(struct xenbus_driver *drv,
-					 struct xen_bus_type *bus,
-					 struct module *owner,
-					 const char *mod_name);
+					 struct xen_bus_type *bus);
 extern int xenbus_probe_node(struct xen_bus_type *bus,
 			     const char *type,
 			     const char *nodename);
@@ -76,4 +74,6 @@ extern void xenbus_otherend_changed(struct xenbus_watch *watch,
 extern int xenbus_read_otherend_details(struct xenbus_device *xendev,
 					char *id_node, char *path_node);
 
+void xenbus_ring_ops_init(void);
+
 #endif
diff --git a/drivers/xen/xenbus/xenbus_probe_backend.c b/drivers/xen/xenbus/xenbus_probe_backend.c
index c3c7cd195c11..257be37d9091 100644
--- a/drivers/xen/xenbus/xenbus_probe_backend.c
+++ b/drivers/xen/xenbus/xenbus_probe_backend.c
@@ -232,15 +232,13 @@ int xenbus_dev_is_online(struct xenbus_device *dev)
 }
 EXPORT_SYMBOL_GPL(xenbus_dev_is_online);
 
-int __xenbus_register_backend(struct xenbus_driver *drv,
-			      struct module *owner, const char *mod_name)
+int xenbus_register_backend(struct xenbus_driver *drv)
 {
 	drv->read_otherend_details = read_frontend_details;
 
-	return xenbus_register_driver_common(drv, &xenbus_backend,
-					     owner, mod_name);
+	return xenbus_register_driver_common(drv, &xenbus_backend);
 }
-EXPORT_SYMBOL_GPL(__xenbus_register_backend);
+EXPORT_SYMBOL_GPL(xenbus_register_backend);
 
 static int backend_probe_and_watch(struct notifier_block *notifier,
 				   unsigned long event,
diff --git a/drivers/xen/xenbus/xenbus_probe_frontend.c b/drivers/xen/xenbus/xenbus_probe_frontend.c
index 2f73195512b4..9c57819df51a 100644
--- a/drivers/xen/xenbus/xenbus_probe_frontend.c
+++ b/drivers/xen/xenbus/xenbus_probe_frontend.c
@@ -230,15 +230,13 @@ static void wait_for_devices(struct xenbus_driver *xendrv)
 			 print_device_status);
 }
 
-int __xenbus_register_frontend(struct xenbus_driver *drv,
-			       struct module *owner, const char *mod_name)
+int xenbus_register_frontend(struct xenbus_driver *drv)
 {
 	int ret;
 
 	drv->read_otherend_details = read_backend_details;
 
-	ret = xenbus_register_driver_common(drv, &xenbus_frontend,
-					    owner, mod_name);
+	ret = xenbus_register_driver_common(drv, &xenbus_frontend);
 	if (ret)
 		return ret;
 
@@ -247,7 +245,7 @@ int __xenbus_register_frontend(struct xenbus_driver *drv,
 
 	return 0;
 }
-EXPORT_SYMBOL_GPL(__xenbus_register_frontend);
+EXPORT_SYMBOL_GPL(xenbus_register_frontend);
 
 static DECLARE_WAIT_QUEUE_HEAD(backend_state_wq);
 static int backend_state;
diff --git a/drivers/xen/xenbus/xenbus_xs.c b/drivers/xen/xenbus/xenbus_xs.c
index ede860f921df..d1c217b23a42 100644
--- a/drivers/xen/xenbus/xenbus_xs.c
+++ b/drivers/xen/xenbus/xenbus_xs.c
@@ -532,21 +532,18 @@ int xenbus_printf(struct xenbus_transaction t,
 {
 	va_list ap;
 	int ret;
-#define PRINTF_BUFFER_SIZE 4096
-	char *printf_buffer;
-
-	printf_buffer = kmalloc(PRINTF_BUFFER_SIZE, GFP_NOIO | __GFP_HIGH);
-	if (printf_buffer == NULL)
-		return -ENOMEM;
+	char *buf;
 
 	va_start(ap, fmt);
-	ret = vsnprintf(printf_buffer, PRINTF_BUFFER_SIZE, fmt, ap);
+	buf = kvasprintf(GFP_NOIO | __GFP_HIGH, fmt, ap);
 	va_end(ap);
 
-	BUG_ON(ret > PRINTF_BUFFER_SIZE-1);
-	ret = xenbus_write(t, dir, node, printf_buffer);
+	if (!buf)
+		return -ENOMEM;
+
+	ret = xenbus_write(t, dir, node, buf);
 
-	kfree(printf_buffer);
+	kfree(buf);
 
 	return ret;
 }
@@ -801,6 +798,12 @@ static int process_msg(void)
 		goto out;
 	}
 
+	if (msg->hdr.len > XENSTORE_PAYLOAD_MAX) {
+		kfree(msg);
+		err = -EINVAL;
+		goto out;
+	}
+
 	body = kmalloc(msg->hdr.len + 1, GFP_NOIO | __GFP_HIGH);
 	if (body == NULL) {
 		kfree(msg);
diff --git a/drivers/xen/xenfs/Makefile b/drivers/xen/xenfs/Makefile
index 4fde9440fe1f..b019865fcc56 100644
--- a/drivers/xen/xenfs/Makefile
+++ b/drivers/xen/xenfs/Makefile
@@ -1,4 +1,4 @@
 obj-$(CONFIG_XENFS) += xenfs.o
 
-xenfs-y			  = super.o xenbus.o privcmd.o
+xenfs-y			  = super.o
 xenfs-$(CONFIG_XEN_DOM0) += xenstored.o
diff --git a/drivers/xen/xenfs/super.c b/drivers/xen/xenfs/super.c
index 1aa389719846..a84b53c01436 100644
--- a/drivers/xen/xenfs/super.c
+++ b/drivers/xen/xenfs/super.c
@@ -16,6 +16,8 @@
 #include <xen/xen.h>
 
 #include "xenfs.h"
+#include "../privcmd.h"
+#include "../xenbus/xenbus_comms.h"
 
 #include <asm/xen/hypervisor.h>
 
@@ -82,9 +84,9 @@ static int xenfs_fill_super(struct super_block *sb, void *data, int silent)
 {
 	static struct tree_descr xenfs_files[] = {
 		[1] = {},
-		{ "xenbus", &xenbus_file_ops, S_IRUSR|S_IWUSR },
+		{ "xenbus", &xen_xenbus_fops, S_IRUSR|S_IWUSR },
 		{ "capabilities", &capabilities_file_ops, S_IRUGO },
-		{ "privcmd", &privcmd_file_ops, S_IRUSR|S_IWUSR },
+		{ "privcmd", &xen_privcmd_fops, S_IRUSR|S_IWUSR },
 		{""},
 	};
 	int rc;
diff --git a/drivers/xen/xenfs/xenfs.h b/drivers/xen/xenfs/xenfs.h
index b68aa6200003..6b80c7779c02 100644
--- a/drivers/xen/xenfs/xenfs.h
+++ b/drivers/xen/xenfs/xenfs.h
@@ -1,8 +1,6 @@
 #ifndef _XENFS_XENBUS_H
 #define _XENFS_XENBUS_H
 
-extern const struct file_operations xenbus_file_ops;
-extern const struct file_operations privcmd_file_ops;
 extern const struct file_operations xsd_kva_file_ops;
 extern const struct file_operations xsd_port_file_ops;
 
diff --git a/fs/9p/cache.c b/fs/9p/cache.c
index 945aa5f02f9b..a9ea73d6dcf3 100644
--- a/fs/9p/cache.c
+++ b/fs/9p/cache.c
@@ -62,8 +62,8 @@ static uint16_t v9fs_cache_session_get_key(const void *cookie_netfs_data,
 	uint16_t klen = 0;
 
 	v9ses = (struct v9fs_session_info *)cookie_netfs_data;
-	P9_DPRINTK(P9_DEBUG_FSC, "session %p buf %p size %u", v9ses,
-		   buffer, bufmax);
+	p9_debug(P9_DEBUG_FSC, "session %p buf %p size %u\n",
+		 v9ses, buffer, bufmax);
 
 	if (v9ses->cachetag)
 		klen = strlen(v9ses->cachetag);
@@ -72,7 +72,7 @@ static uint16_t v9fs_cache_session_get_key(const void *cookie_netfs_data,
 		return 0;
 
 	memcpy(buffer, v9ses->cachetag, klen);
-	P9_DPRINTK(P9_DEBUG_FSC, "cache session tag %s", v9ses->cachetag);
+	p9_debug(P9_DEBUG_FSC, "cache session tag %s\n", v9ses->cachetag);
 	return klen;
 }
 
@@ -91,14 +91,14 @@ void v9fs_cache_session_get_cookie(struct v9fs_session_info *v9ses)
 	v9ses->fscache = fscache_acquire_cookie(v9fs_cache_netfs.primary_index,
 						&v9fs_cache_session_index_def,
 						v9ses);
-	P9_DPRINTK(P9_DEBUG_FSC, "session %p get cookie %p", v9ses,
-		   v9ses->fscache);
+	p9_debug(P9_DEBUG_FSC, "session %p get cookie %p\n",
+		 v9ses, v9ses->fscache);
 }
 
 void v9fs_cache_session_put_cookie(struct v9fs_session_info *v9ses)
 {
-	P9_DPRINTK(P9_DEBUG_FSC, "session %p put cookie %p", v9ses,
-		   v9ses->fscache);
+	p9_debug(P9_DEBUG_FSC, "session %p put cookie %p\n",
+		 v9ses, v9ses->fscache);
 	fscache_relinquish_cookie(v9ses->fscache, 0);
 	v9ses->fscache = NULL;
 }
@@ -109,8 +109,8 @@ static uint16_t v9fs_cache_inode_get_key(const void *cookie_netfs_data,
 {
 	const struct v9fs_inode *v9inode = cookie_netfs_data;
 	memcpy(buffer, &v9inode->qid.path, sizeof(v9inode->qid.path));
-	P9_DPRINTK(P9_DEBUG_FSC, "inode %p get key %llu", &v9inode->vfs_inode,
-		   v9inode->qid.path);
+	p9_debug(P9_DEBUG_FSC, "inode %p get key %llu\n",
+		 &v9inode->vfs_inode, v9inode->qid.path);
 	return sizeof(v9inode->qid.path);
 }
 
@@ -120,8 +120,8 @@ static void v9fs_cache_inode_get_attr(const void *cookie_netfs_data,
 	const struct v9fs_inode *v9inode = cookie_netfs_data;
 	*size = i_size_read(&v9inode->vfs_inode);
 
-	P9_DPRINTK(P9_DEBUG_FSC, "inode %p get attr %llu", &v9inode->vfs_inode,
-		   *size);
+	p9_debug(P9_DEBUG_FSC, "inode %p get attr %llu\n",
+		 &v9inode->vfs_inode, *size);
 }
 
 static uint16_t v9fs_cache_inode_get_aux(const void *cookie_netfs_data,
@@ -129,8 +129,8 @@ static uint16_t v9fs_cache_inode_get_aux(const void *cookie_netfs_data,
 {
 	const struct v9fs_inode *v9inode = cookie_netfs_data;
 	memcpy(buffer, &v9inode->qid.version, sizeof(v9inode->qid.version));
-	P9_DPRINTK(P9_DEBUG_FSC, "inode %p get aux %u", &v9inode->vfs_inode,
-		   v9inode->qid.version);
+	p9_debug(P9_DEBUG_FSC, "inode %p get aux %u\n",
+		 &v9inode->vfs_inode, v9inode->qid.version);
 	return sizeof(v9inode->qid.version);
 }
 
@@ -206,8 +206,8 @@ void v9fs_cache_inode_get_cookie(struct inode *inode)
 						  &v9fs_cache_inode_index_def,
 						  v9inode);
 
-	P9_DPRINTK(P9_DEBUG_FSC, "inode %p get cookie %p", inode,
-		   v9inode->fscache);
+	p9_debug(P9_DEBUG_FSC, "inode %p get cookie %p\n",
+		 inode, v9inode->fscache);
 }
 
 void v9fs_cache_inode_put_cookie(struct inode *inode)
@@ -216,8 +216,8 @@ void v9fs_cache_inode_put_cookie(struct inode *inode)
 
 	if (!v9inode->fscache)
 		return;
-	P9_DPRINTK(P9_DEBUG_FSC, "inode %p put cookie %p", inode,
-		   v9inode->fscache);
+	p9_debug(P9_DEBUG_FSC, "inode %p put cookie %p\n",
+		 inode, v9inode->fscache);
 
 	fscache_relinquish_cookie(v9inode->fscache, 0);
 	v9inode->fscache = NULL;
@@ -229,8 +229,8 @@ void v9fs_cache_inode_flush_cookie(struct inode *inode)
 
 	if (!v9inode->fscache)
 		return;
-	P9_DPRINTK(P9_DEBUG_FSC, "inode %p flush cookie %p", inode,
-		   v9inode->fscache);
+	p9_debug(P9_DEBUG_FSC, "inode %p flush cookie %p\n",
+		 inode, v9inode->fscache);
 
 	fscache_relinquish_cookie(v9inode->fscache, 1);
 	v9inode->fscache = NULL;
@@ -272,8 +272,8 @@ void v9fs_cache_inode_reset_cookie(struct inode *inode)
 	v9inode->fscache = fscache_acquire_cookie(v9ses->fscache,
 						  &v9fs_cache_inode_index_def,
 						  v9inode);
-	P9_DPRINTK(P9_DEBUG_FSC, "inode %p revalidating cookie old %p new %p",
-		   inode, old, v9inode->fscache);
+	p9_debug(P9_DEBUG_FSC, "inode %p revalidating cookie old %p new %p\n",
+		 inode, old, v9inode->fscache);
 
 	spin_unlock(&v9inode->fscache_lock);
 }
@@ -323,7 +323,7 @@ int __v9fs_readpage_from_fscache(struct inode *inode, struct page *page)
 	int ret;
 	const struct v9fs_inode *v9inode = V9FS_I(inode);
 
-	P9_DPRINTK(P9_DEBUG_FSC, "inode %p page %p", inode, page);
+	p9_debug(P9_DEBUG_FSC, "inode %p page %p\n", inode, page);
 	if (!v9inode->fscache)
 		return -ENOBUFS;
 
@@ -335,13 +335,13 @@ int __v9fs_readpage_from_fscache(struct inode *inode, struct page *page)
 	switch (ret) {
 	case -ENOBUFS:
 	case -ENODATA:
-		P9_DPRINTK(P9_DEBUG_FSC, "page/inode not in cache %d", ret);
+		p9_debug(P9_DEBUG_FSC, "page/inode not in cache %d\n", ret);
 		return 1;
 	case 0:
-		P9_DPRINTK(P9_DEBUG_FSC, "BIO submitted");
+		p9_debug(P9_DEBUG_FSC, "BIO submitted\n");
 		return ret;
 	default:
-		P9_DPRINTK(P9_DEBUG_FSC, "ret %d", ret);
+		p9_debug(P9_DEBUG_FSC, "ret %d\n", ret);
 		return ret;
 	}
 }
@@ -361,7 +361,7 @@ int __v9fs_readpages_from_fscache(struct inode *inode,
 	int ret;
 	const struct v9fs_inode *v9inode = V9FS_I(inode);
 
-	P9_DPRINTK(P9_DEBUG_FSC, "inode %p pages %u", inode, *nr_pages);
+	p9_debug(P9_DEBUG_FSC, "inode %p pages %u\n", inode, *nr_pages);
 	if (!v9inode->fscache)
 		return -ENOBUFS;
 
@@ -373,15 +373,15 @@ int __v9fs_readpages_from_fscache(struct inode *inode,
 	switch (ret) {
 	case -ENOBUFS:
 	case -ENODATA:
-		P9_DPRINTK(P9_DEBUG_FSC, "pages/inodes not in cache %d", ret);
+		p9_debug(P9_DEBUG_FSC, "pages/inodes not in cache %d\n", ret);
 		return 1;
 	case 0:
 		BUG_ON(!list_empty(pages));
 		BUG_ON(*nr_pages != 0);
-		P9_DPRINTK(P9_DEBUG_FSC, "BIO submitted");
+		p9_debug(P9_DEBUG_FSC, "BIO submitted\n");
 		return ret;
 	default:
-		P9_DPRINTK(P9_DEBUG_FSC, "ret %d", ret);
+		p9_debug(P9_DEBUG_FSC, "ret %d\n", ret);
 		return ret;
 	}
 }
@@ -396,9 +396,9 @@ void __v9fs_readpage_to_fscache(struct inode *inode, struct page *page)
 	int ret;
 	const struct v9fs_inode *v9inode = V9FS_I(inode);
 
-	P9_DPRINTK(P9_DEBUG_FSC, "inode %p page %p", inode, page);
+	p9_debug(P9_DEBUG_FSC, "inode %p page %p\n", inode, page);
 	ret = fscache_write_page(v9inode->fscache, page, GFP_KERNEL);
-	P9_DPRINTK(P9_DEBUG_FSC, "ret =  %d", ret);
+	p9_debug(P9_DEBUG_FSC, "ret =  %d\n", ret);
 	if (ret != 0)
 		v9fs_uncache_page(inode, page);
 }
@@ -409,7 +409,7 @@ void __v9fs_readpage_to_fscache(struct inode *inode, struct page *page)
 void __v9fs_fscache_wait_on_page_write(struct inode *inode, struct page *page)
 {
 	const struct v9fs_inode *v9inode = V9FS_I(inode);
-	P9_DPRINTK(P9_DEBUG_FSC, "inode %p page %p", inode, page);
+	p9_debug(P9_DEBUG_FSC, "inode %p page %p\n", inode, page);
 	if (PageFsCache(page))
 		fscache_wait_on_page_write(v9inode->fscache, page);
 }
diff --git a/fs/9p/fid.c b/fs/9p/fid.c
index 85b67ffa2a43..da8eefbe830d 100644
--- a/fs/9p/fid.c
+++ b/fs/9p/fid.c
@@ -45,8 +45,8 @@ int v9fs_fid_add(struct dentry *dentry, struct p9_fid *fid)
 {
 	struct v9fs_dentry *dent;
 
-	P9_DPRINTK(P9_DEBUG_VFS, "fid %d dentry %s\n",
-					fid->fid, dentry->d_name.name);
+	p9_debug(P9_DEBUG_VFS, "fid %d dentry %s\n",
+		 fid->fid, dentry->d_name.name);
 
 	dent = dentry->d_fsdata;
 	if (!dent) {
@@ -79,8 +79,8 @@ static struct p9_fid *v9fs_fid_find(struct dentry *dentry, u32 uid, int any)
 	struct v9fs_dentry *dent;
 	struct p9_fid *fid, *ret;
 
-	P9_DPRINTK(P9_DEBUG_VFS, " dentry: %s (%p) uid %d any %d\n",
-		dentry->d_name.name, dentry, uid, any);
+	p9_debug(P9_DEBUG_VFS, " dentry: %s (%p) uid %d any %d\n",
+		 dentry->d_name.name, dentry, uid, any);
 	dent = (struct v9fs_dentry *) dentry->d_fsdata;
 	ret = NULL;
 	if (dent) {
diff --git a/fs/9p/v9fs.c b/fs/9p/v9fs.c
index 2b78014a124a..1964f98e74be 100644
--- a/fs/9p/v9fs.c
+++ b/fs/9p/v9fs.c
@@ -23,6 +23,8 @@
  *
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/module.h>
 #include <linux/errno.h>
 #include <linux/fs.h>
@@ -85,15 +87,15 @@ static int get_cache_mode(char *s)
 
 	if (!strcmp(s, "loose")) {
 		version = CACHE_LOOSE;
-		P9_DPRINTK(P9_DEBUG_9P, "Cache mode: loose\n");
+		p9_debug(P9_DEBUG_9P, "Cache mode: loose\n");
 	} else if (!strcmp(s, "fscache")) {
 		version = CACHE_FSCACHE;
-		P9_DPRINTK(P9_DEBUG_9P, "Cache mode: fscache\n");
+		p9_debug(P9_DEBUG_9P, "Cache mode: fscache\n");
 	} else if (!strcmp(s, "none")) {
 		version = CACHE_NONE;
-		P9_DPRINTK(P9_DEBUG_9P, "Cache mode: none\n");
+		p9_debug(P9_DEBUG_9P, "Cache mode: none\n");
 	} else
-		printk(KERN_INFO "9p: Unknown Cache mode %s.\n", s);
+		pr_info("Unknown Cache mode %s\n", s);
 	return version;
 }
 
@@ -140,8 +142,8 @@ static int v9fs_parse_options(struct v9fs_session_info *v9ses, char *opts)
 		case Opt_debug:
 			r = match_int(&args[0], &option);
 			if (r < 0) {
-				P9_DPRINTK(P9_DEBUG_ERROR,
-					   "integer field, but no integer?\n");
+				p9_debug(P9_DEBUG_ERROR,
+					 "integer field, but no integer?\n");
 				ret = r;
 				continue;
 			}
@@ -154,8 +156,8 @@ static int v9fs_parse_options(struct v9fs_session_info *v9ses, char *opts)
 		case Opt_dfltuid:
 			r = match_int(&args[0], &option);
 			if (r < 0) {
-				P9_DPRINTK(P9_DEBUG_ERROR,
-					   "integer field, but no integer?\n");
+				p9_debug(P9_DEBUG_ERROR,
+					 "integer field, but no integer?\n");
 				ret = r;
 				continue;
 			}
@@ -164,8 +166,8 @@ static int v9fs_parse_options(struct v9fs_session_info *v9ses, char *opts)
 		case Opt_dfltgid:
 			r = match_int(&args[0], &option);
 			if (r < 0) {
-				P9_DPRINTK(P9_DEBUG_ERROR,
-					   "integer field, but no integer?\n");
+				p9_debug(P9_DEBUG_ERROR,
+					 "integer field, but no integer?\n");
 				ret = r;
 				continue;
 			}
@@ -174,8 +176,8 @@ static int v9fs_parse_options(struct v9fs_session_info *v9ses, char *opts)
 		case Opt_afid:
 			r = match_int(&args[0], &option);
 			if (r < 0) {
-				P9_DPRINTK(P9_DEBUG_ERROR,
-					   "integer field, but no integer?\n");
+				p9_debug(P9_DEBUG_ERROR,
+					 "integer field, but no integer?\n");
 				ret = r;
 				continue;
 			}
@@ -205,8 +207,8 @@ static int v9fs_parse_options(struct v9fs_session_info *v9ses, char *opts)
 			s = match_strdup(&args[0]);
 			if (!s) {
 				ret = -ENOMEM;
-				P9_DPRINTK(P9_DEBUG_ERROR,
-				  "problem allocating copy of cache arg\n");
+				p9_debug(P9_DEBUG_ERROR,
+					 "problem allocating copy of cache arg\n");
 				goto free_and_return;
 			}
 			ret = get_cache_mode(s);
@@ -223,8 +225,8 @@ static int v9fs_parse_options(struct v9fs_session_info *v9ses, char *opts)
 			s = match_strdup(&args[0]);
 			if (!s) {
 				ret = -ENOMEM;
-				P9_DPRINTK(P9_DEBUG_ERROR,
-				  "problem allocating copy of access arg\n");
+				p9_debug(P9_DEBUG_ERROR,
+					 "problem allocating copy of access arg\n");
 				goto free_and_return;
 			}
 
@@ -240,8 +242,8 @@ static int v9fs_parse_options(struct v9fs_session_info *v9ses, char *opts)
 				v9ses->uid = simple_strtoul(s, &e, 10);
 				if (*e != '\0') {
 					ret = -EINVAL;
-					printk(KERN_INFO "9p: Unknown access "
-							"argument %s.\n", s);
+					pr_info("Unknown access argument %s\n",
+						s);
 					kfree(s);
 					goto free_and_return;
 				}
@@ -254,9 +256,8 @@ static int v9fs_parse_options(struct v9fs_session_info *v9ses, char *opts)
 #ifdef CONFIG_9P_FS_POSIX_ACL
 			v9ses->flags |= V9FS_POSIX_ACL;
 #else
-			P9_DPRINTK(P9_DEBUG_ERROR,
-					"Not defined CONFIG_9P_FS_POSIX_ACL. "
-					"Ignoring posixacl option\n");
+			p9_debug(P9_DEBUG_ERROR,
+				 "Not defined CONFIG_9P_FS_POSIX_ACL. Ignoring posixacl option\n");
 #endif
 			break;
 
@@ -318,7 +319,7 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses,
 	if (IS_ERR(v9ses->clnt)) {
 		retval = PTR_ERR(v9ses->clnt);
 		v9ses->clnt = NULL;
-		P9_DPRINTK(P9_DEBUG_ERROR, "problem initializing 9p client\n");
+		p9_debug(P9_DEBUG_ERROR, "problem initializing 9p client\n");
 		goto error;
 	}
 
@@ -371,7 +372,7 @@ struct p9_fid *v9fs_session_init(struct v9fs_session_info *v9ses,
 	if (IS_ERR(fid)) {
 		retval = PTR_ERR(fid);
 		fid = NULL;
-		P9_DPRINTK(P9_DEBUG_ERROR, "cannot attach\n");
+		p9_debug(P9_DEBUG_ERROR, "cannot attach\n");
 		goto error;
 	}
 
@@ -429,7 +430,7 @@ void v9fs_session_close(struct v9fs_session_info *v9ses)
  */
 
 void v9fs_session_cancel(struct v9fs_session_info *v9ses) {
-	P9_DPRINTK(P9_DEBUG_ERROR, "cancel session %p\n", v9ses);
+	p9_debug(P9_DEBUG_ERROR, "cancel session %p\n", v9ses);
 	p9_client_disconnect(v9ses->clnt);
 }
 
@@ -442,7 +443,7 @@ void v9fs_session_cancel(struct v9fs_session_info *v9ses) {
 
 void v9fs_session_begin_cancel(struct v9fs_session_info *v9ses)
 {
-	P9_DPRINTK(P9_DEBUG_ERROR, "begin cancel session %p\n", v9ses);
+	p9_debug(P9_DEBUG_ERROR, "begin cancel session %p\n", v9ses);
 	p9_client_begin_disconnect(v9ses->clnt);
 }
 
@@ -591,23 +592,23 @@ static void v9fs_cache_unregister(void)
 static int __init init_v9fs(void)
 {
 	int err;
-	printk(KERN_INFO "Installing v9fs 9p2000 file system support\n");
+	pr_info("Installing v9fs 9p2000 file system support\n");
 	/* TODO: Setup list of registered trasnport modules */
 	err = register_filesystem(&v9fs_fs_type);
 	if (err < 0) {
-		printk(KERN_ERR "Failed to register filesystem\n");
+		pr_err("Failed to register filesystem\n");
 		return err;
 	}
 
 	err = v9fs_cache_register();
 	if (err < 0) {
-		printk(KERN_ERR "Failed to register v9fs for caching\n");
+		pr_err("Failed to register v9fs for caching\n");
 		goto out_fs_unreg;
 	}
 
 	err = v9fs_sysfs_init();
 	if (err < 0) {
-		printk(KERN_ERR "Failed to register with sysfs\n");
+		pr_err("Failed to register with sysfs\n");
 		goto out_sysfs_cleanup;
 	}
 
diff --git a/fs/9p/vfs_addr.c b/fs/9p/vfs_addr.c
index 2524e4cbb8ea..0ad61c6a65a5 100644
--- a/fs/9p/vfs_addr.c
+++ b/fs/9p/vfs_addr.c
@@ -56,7 +56,7 @@ static int v9fs_fid_readpage(struct p9_fid *fid, struct page *page)
 	struct inode *inode;
 
 	inode = page->mapping->host;
-	P9_DPRINTK(P9_DEBUG_VFS, "\n");
+	p9_debug(P9_DEBUG_VFS, "\n");
 
 	BUG_ON(!PageLocked(page));
 
@@ -116,14 +116,14 @@ static int v9fs_vfs_readpages(struct file *filp, struct address_space *mapping,
 	struct inode *inode;
 
 	inode = mapping->host;
-	P9_DPRINTK(P9_DEBUG_VFS, "inode: %p file: %p\n", inode, filp);
+	p9_debug(P9_DEBUG_VFS, "inode: %p file: %p\n", inode, filp);
 
 	ret = v9fs_readpages_from_fscache(inode, mapping, pages, &nr_pages);
 	if (ret == 0)
 		return ret;
 
 	ret = read_cache_pages(mapping, pages, (void *)v9fs_vfs_readpage, filp);
-	P9_DPRINTK(P9_DEBUG_VFS, "  = %d\n", ret);
+	p9_debug(P9_DEBUG_VFS, "  = %d\n", ret);
 	return ret;
 }
 
@@ -263,10 +263,9 @@ v9fs_direct_IO(int rw, struct kiocb *iocb, const struct iovec *iov,
 	 * Now that we do caching with cache mode enabled, We need
 	 * to support direct IO
 	 */
-	P9_DPRINTK(P9_DEBUG_VFS, "v9fs_direct_IO: v9fs_direct_IO (%s) "
-			"off/no(%lld/%lu) EINVAL\n",
-			iocb->ki_filp->f_path.dentry->d_name.name,
-			(long long) pos, nr_segs);
+	p9_debug(P9_DEBUG_VFS, "v9fs_direct_IO: v9fs_direct_IO (%s) off/no(%lld/%lu) EINVAL\n",
+		 iocb->ki_filp->f_path.dentry->d_name.name,
+		 (long long)pos, nr_segs);
 
 	return -EINVAL;
 }
diff --git a/fs/9p/vfs_dentry.c b/fs/9p/vfs_dentry.c
index e022890c6f40..d529437ff442 100644
--- a/fs/9p/vfs_dentry.c
+++ b/fs/9p/vfs_dentry.c
@@ -53,8 +53,8 @@
 
 static int v9fs_dentry_delete(const struct dentry *dentry)
 {
-	P9_DPRINTK(P9_DEBUG_VFS, " dentry: %s (%p)\n", dentry->d_name.name,
-									dentry);
+	p9_debug(P9_DEBUG_VFS, " dentry: %s (%p)\n",
+		 dentry->d_name.name, dentry);
 
 	return 1;
 }
@@ -66,8 +66,8 @@ static int v9fs_dentry_delete(const struct dentry *dentry)
  */
 static int v9fs_cached_dentry_delete(const struct dentry *dentry)
 {
-	P9_DPRINTK(P9_DEBUG_VFS, " dentry: %s (%p)\n",
-		   dentry->d_name.name, dentry);
+	p9_debug(P9_DEBUG_VFS, " dentry: %s (%p)\n",
+		 dentry->d_name.name, dentry);
 
 	/* Don't cache negative dentries */
 	if (!dentry->d_inode)
@@ -86,8 +86,8 @@ static void v9fs_dentry_release(struct dentry *dentry)
 	struct v9fs_dentry *dent;
 	struct p9_fid *temp, *current_fid;
 
-	P9_DPRINTK(P9_DEBUG_VFS, " dentry: %s (%p)\n", dentry->d_name.name,
-									dentry);
+	p9_debug(P9_DEBUG_VFS, " dentry: %s (%p)\n",
+		 dentry->d_name.name, dentry);
 	dent = dentry->d_fsdata;
 	if (dent) {
 		list_for_each_entry_safe(current_fid, temp, &dent->fidlist,
diff --git a/fs/9p/vfs_dir.c b/fs/9p/vfs_dir.c
index 598fff1a54e5..ff911e779651 100644
--- a/fs/9p/vfs_dir.c
+++ b/fs/9p/vfs_dir.c
@@ -140,7 +140,7 @@ static int v9fs_dir_readdir(struct file *filp, void *dirent, filldir_t filldir)
 	int reclen = 0;
 	struct p9_rdir *rdir;
 
-	P9_DPRINTK(P9_DEBUG_VFS, "name %s\n", filp->f_path.dentry->d_name.name);
+	p9_debug(P9_DEBUG_VFS, "name %s\n", filp->f_path.dentry->d_name.name);
 	fid = filp->private_data;
 
 	buflen = fid->clnt->msize - P9_IOHDRSZ;
@@ -168,7 +168,7 @@ static int v9fs_dir_readdir(struct file *filp, void *dirent, filldir_t filldir)
 			err = p9stat_read(fid->clnt, rdir->buf + rdir->head,
 					  rdir->tail - rdir->head, &st);
 			if (err) {
-				P9_DPRINTK(P9_DEBUG_VFS, "returned %d\n", err);
+				p9_debug(P9_DEBUG_VFS, "returned %d\n", err);
 				err = -EIO;
 				p9stat_free(&st);
 				goto unlock_and_exit;
@@ -213,7 +213,7 @@ static int v9fs_dir_readdir_dotl(struct file *filp, void *dirent,
 	struct p9_dirent curdirent;
 	u64 oldoffset = 0;
 
-	P9_DPRINTK(P9_DEBUG_VFS, "name %s\n", filp->f_path.dentry->d_name.name);
+	p9_debug(P9_DEBUG_VFS, "name %s\n", filp->f_path.dentry->d_name.name);
 	fid = filp->private_data;
 
 	buflen = fid->clnt->msize - P9_READDIRHDRSZ;
@@ -244,7 +244,7 @@ static int v9fs_dir_readdir_dotl(struct file *filp, void *dirent,
 					    rdir->tail - rdir->head,
 					    &curdirent);
 			if (err < 0) {
-				P9_DPRINTK(P9_DEBUG_VFS, "returned %d\n", err);
+				p9_debug(P9_DEBUG_VFS, "returned %d\n", err);
 				err = -EIO;
 				goto unlock_and_exit;
 			}
@@ -290,9 +290,8 @@ int v9fs_dir_release(struct inode *inode, struct file *filp)
 	struct p9_fid *fid;
 
 	fid = filp->private_data;
-	P9_DPRINTK(P9_DEBUG_VFS,
-			"v9fs_dir_release: inode: %p filp: %p fid: %d\n",
-			inode, filp, fid ? fid->fid : -1);
+	p9_debug(P9_DEBUG_VFS, "inode: %p filp: %p fid: %d\n",
+		 inode, filp, fid ? fid->fid : -1);
 	if (fid)
 		p9_client_clunk(fid);
 	return 0;
diff --git a/fs/9p/vfs_file.c b/fs/9p/vfs_file.c
index 62857a810a79..fc06fd27065e 100644
--- a/fs/9p/vfs_file.c
+++ b/fs/9p/vfs_file.c
@@ -61,7 +61,7 @@ int v9fs_file_open(struct inode *inode, struct file *file)
 	struct p9_fid *fid;
 	int omode;
 
-	P9_DPRINTK(P9_DEBUG_VFS, "inode: %p file: %p\n", inode, file);
+	p9_debug(P9_DEBUG_VFS, "inode: %p file: %p\n", inode, file);
 	v9inode = V9FS_I(inode);
 	v9ses = v9fs_inode2v9ses(inode);
 	if (v9fs_proto_dotl(v9ses))
@@ -135,7 +135,7 @@ static int v9fs_file_lock(struct file *filp, int cmd, struct file_lock *fl)
 	int res = 0;
 	struct inode *inode = filp->f_path.dentry->d_inode;
 
-	P9_DPRINTK(P9_DEBUG_VFS, "filp: %p lock: %p\n", filp, fl);
+	p9_debug(P9_DEBUG_VFS, "filp: %p lock: %p\n", filp, fl);
 
 	/* No mandatory locks */
 	if (__mandatory_lock(inode) && fl->fl_type != F_UNLCK)
@@ -204,7 +204,8 @@ static int v9fs_file_do_lock(struct file *filp, int cmd, struct file_lock *fl)
 			break;
 		if (status == P9_LOCK_BLOCKED && !IS_SETLKW(cmd))
 			break;
-		schedule_timeout_interruptible(P9_LOCK_TIMEOUT);
+		if (schedule_timeout_interruptible(P9_LOCK_TIMEOUT) != 0)
+			break;
 	}
 
 	/* map 9p status to VFS status */
@@ -304,8 +305,8 @@ static int v9fs_file_lock_dotl(struct file *filp, int cmd, struct file_lock *fl)
 	struct inode *inode = filp->f_path.dentry->d_inode;
 	int ret = -ENOLCK;
 
-	P9_DPRINTK(P9_DEBUG_VFS, "filp: %p cmd:%d lock: %p name: %s\n", filp,
-				cmd, fl, filp->f_path.dentry->d_name.name);
+	p9_debug(P9_DEBUG_VFS, "filp: %p cmd:%d lock: %p name: %s\n",
+		 filp, cmd, fl, filp->f_path.dentry->d_name.name);
 
 	/* No mandatory locks */
 	if (__mandatory_lock(inode) && fl->fl_type != F_UNLCK)
@@ -340,8 +341,8 @@ static int v9fs_file_flock_dotl(struct file *filp, int cmd,
 	struct inode *inode = filp->f_path.dentry->d_inode;
 	int ret = -ENOLCK;
 
-	P9_DPRINTK(P9_DEBUG_VFS, "filp: %p cmd:%d lock: %p name: %s\n", filp,
-				cmd, fl, filp->f_path.dentry->d_name.name);
+	p9_debug(P9_DEBUG_VFS, "filp: %p cmd:%d lock: %p name: %s\n",
+		 filp, cmd, fl, filp->f_path.dentry->d_name.name);
 
 	/* No mandatory locks */
 	if (__mandatory_lock(inode) && fl->fl_type != F_UNLCK)
@@ -384,8 +385,8 @@ v9fs_fid_readn(struct p9_fid *fid, char *data, char __user *udata, u32 count,
 {
 	int n, total, size;
 
-	P9_DPRINTK(P9_DEBUG_VFS, "fid %d offset %llu count %d\n", fid->fid,
-		   (long long unsigned) offset, count);
+	p9_debug(P9_DEBUG_VFS, "fid %d offset %llu count %d\n",
+		 fid->fid, (long long unsigned)offset, count);
 	n = 0;
 	total = 0;
 	size = fid->iounit ? fid->iounit : fid->clnt->msize - P9_IOHDRSZ;
@@ -443,7 +444,7 @@ v9fs_file_read(struct file *filp, char __user *udata, size_t count,
 	struct p9_fid *fid;
 	size_t size;
 
-	P9_DPRINTK(P9_DEBUG_VFS, "count %zu offset %lld\n", count, *offset);
+	p9_debug(P9_DEBUG_VFS, "count %zu offset %lld\n", count, *offset);
 	fid = filp->private_data;
 
 	size = fid->iounit ? fid->iounit : fid->clnt->msize - P9_IOHDRSZ;
@@ -470,8 +471,8 @@ v9fs_file_write_internal(struct inode *inode, struct p9_fid *fid,
 	loff_t origin = *offset;
 	unsigned long pg_start, pg_end;
 
-	P9_DPRINTK(P9_DEBUG_VFS, "data %p count %d offset %x\n", data,
-		(int)count, (int)*offset);
+	p9_debug(P9_DEBUG_VFS, "data %p count %d offset %x\n",
+		 data, (int)count, (int)*offset);
 
 	clnt = fid->clnt;
 	do {
@@ -552,7 +553,7 @@ static int v9fs_file_fsync(struct file *filp, loff_t start, loff_t end,
 		return retval;
 
 	mutex_lock(&inode->i_mutex);
-	P9_DPRINTK(P9_DEBUG_VFS, "filp %p datasync %x\n", filp, datasync);
+	p9_debug(P9_DEBUG_VFS, "filp %p datasync %x\n", filp, datasync);
 
 	fid = filp->private_data;
 	v9fs_blank_wstat(&wstat);
@@ -575,8 +576,7 @@ int v9fs_file_fsync_dotl(struct file *filp, loff_t start, loff_t end,
 		return retval;
 
 	mutex_lock(&inode->i_mutex);
-	P9_DPRINTK(P9_DEBUG_VFS, "v9fs_file_fsync_dotl: filp %p datasync %x\n",
-			filp, datasync);
+	p9_debug(P9_DEBUG_VFS, "filp %p datasync %x\n", filp, datasync);
 
 	fid = filp->private_data;
 
@@ -607,8 +607,8 @@ v9fs_vm_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf)
 	struct inode *inode = filp->f_path.dentry->d_inode;
 
 
-	P9_DPRINTK(P9_DEBUG_VFS, "page %p fid %lx\n",
-		   page, (unsigned long)filp->private_data);
+	p9_debug(P9_DEBUG_VFS, "page %p fid %lx\n",
+		 page, (unsigned long)filp->private_data);
 
 	v9inode = V9FS_I(inode);
 	/* make sure the cache has finished storing the page */
diff --git a/fs/9p/vfs_inode.c b/fs/9p/vfs_inode.c
index e0f20de6aa2b..014c8dd62962 100644
--- a/fs/9p/vfs_inode.c
+++ b/fs/9p/vfs_inode.c
@@ -23,6 +23,8 @@
  *
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/module.h>
 #include <linux/errno.h>
 #include <linux/fs.h>
@@ -88,6 +90,32 @@ static u32 unixmode2p9mode(struct v9fs_session_info *v9ses, umode_t mode)
 }
 
 /**
+ * p9mode2perm- convert plan9 mode bits to unix permission bits
+ * @v9ses: v9fs session information
+ * @stat: p9_wstat from which mode need to be derived
+ *
+ */
+static int p9mode2perm(struct v9fs_session_info *v9ses,
+		       struct p9_wstat *stat)
+{
+	int res;
+	int mode = stat->mode;
+
+	res = mode & S_IALLUGO;
+	if (v9fs_proto_dotu(v9ses)) {
+		if ((mode & P9_DMSETUID) == P9_DMSETUID)
+			res |= S_ISUID;
+
+		if ((mode & P9_DMSETGID) == P9_DMSETGID)
+			res |= S_ISGID;
+
+		if ((mode & P9_DMSETVTX) == P9_DMSETVTX)
+			res |= S_ISVTX;
+	}
+	return res;
+}
+
+/**
  * p9mode2unixmode- convert plan9 mode bits to unix mode bits
  * @v9ses: v9fs session information
  * @stat: p9_wstat from which mode need to be derived
@@ -100,8 +128,8 @@ static umode_t p9mode2unixmode(struct v9fs_session_info *v9ses,
 	int res;
 	u32 mode = stat->mode;
 
-	res = mode & S_IALLUGO;
 	*rdev = 0;
+	res = p9mode2perm(v9ses, stat);
 
 	if ((mode & P9_DMDIR) == P9_DMDIR)
 		res |= S_IFDIR;
@@ -128,24 +156,13 @@ static umode_t p9mode2unixmode(struct v9fs_session_info *v9ses,
 			res |= S_IFBLK;
 			break;
 		default:
-			P9_DPRINTK(P9_DEBUG_ERROR,
-				"Unknown special type %c %s\n", type,
-				stat->extension);
+			p9_debug(P9_DEBUG_ERROR, "Unknown special type %c %s\n",
+				 type, stat->extension);
 		};
 		*rdev = MKDEV(major, minor);
 	} else
 		res |= S_IFREG;
 
-	if (v9fs_proto_dotu(v9ses)) {
-		if ((mode & P9_DMSETUID) == P9_DMSETUID)
-			res |= S_ISUID;
-
-		if ((mode & P9_DMSETGID) == P9_DMSETGID)
-			res |= S_ISGID;
-
-		if ((mode & P9_DMSETVTX) == P9_DMSETVTX)
-			res |= S_ISVTX;
-	}
 	return res;
 }
 
@@ -275,8 +292,8 @@ int v9fs_init_inode(struct v9fs_session_info *v9ses,
 		} else if (v9fs_proto_dotu(v9ses)) {
 			inode->i_op = &v9fs_file_inode_operations;
 		} else {
-			P9_DPRINTK(P9_DEBUG_ERROR,
-				   "special files without extended mode\n");
+			p9_debug(P9_DEBUG_ERROR,
+				 "special files without extended mode\n");
 			err = -EINVAL;
 			goto error;
 		}
@@ -301,8 +318,8 @@ int v9fs_init_inode(struct v9fs_session_info *v9ses,
 		break;
 	case S_IFLNK:
 		if (!v9fs_proto_dotu(v9ses) && !v9fs_proto_dotl(v9ses)) {
-			P9_DPRINTK(P9_DEBUG_ERROR, "extended modes used with "
-						"legacy protocol.\n");
+			p9_debug(P9_DEBUG_ERROR,
+				 "extended modes used with legacy protocol\n");
 			err = -EINVAL;
 			goto error;
 		}
@@ -329,8 +346,8 @@ int v9fs_init_inode(struct v9fs_session_info *v9ses,
 
 		break;
 	default:
-		P9_DPRINTK(P9_DEBUG_ERROR, "BAD mode 0x%hx S_IFMT 0x%x\n",
-			   mode, mode & S_IFMT);
+		p9_debug(P9_DEBUG_ERROR, "BAD mode 0x%hx S_IFMT 0x%x\n",
+			 mode, mode & S_IFMT);
 		err = -EINVAL;
 		goto error;
 	}
@@ -352,11 +369,12 @@ struct inode *v9fs_get_inode(struct super_block *sb, umode_t mode, dev_t rdev)
 	struct inode *inode;
 	struct v9fs_session_info *v9ses = sb->s_fs_info;
 
-	P9_DPRINTK(P9_DEBUG_VFS, "super block: %p mode: %ho\n", sb, mode);
+	p9_debug(P9_DEBUG_VFS, "super block: %p mode: %ho\n", sb, mode);
 
 	inode = new_inode(sb);
 	if (!inode) {
-		P9_EPRINTK(KERN_WARNING, "Problem allocating inode\n");
+		pr_warn("%s (%d): Problem allocating inode\n",
+			__func__, task_pid_nr(current));
 		return ERR_PTR(-ENOMEM);
 	}
 	err = v9fs_init_inode(v9ses, inode, mode, rdev);
@@ -573,15 +591,15 @@ static int v9fs_remove(struct inode *dir, struct dentry *dentry, int flags)
 	struct p9_fid *v9fid, *dfid;
 	struct v9fs_session_info *v9ses;
 
-	P9_DPRINTK(P9_DEBUG_VFS, "inode: %p dentry: %p rmdir: %x\n",
-		   dir, dentry, flags);
+	p9_debug(P9_DEBUG_VFS, "inode: %p dentry: %p rmdir: %x\n",
+		 dir, dentry, flags);
 
 	v9ses = v9fs_inode2v9ses(dir);
 	inode = dentry->d_inode;
 	dfid = v9fs_fid_lookup(dentry->d_parent);
 	if (IS_ERR(dfid)) {
 		retval = PTR_ERR(dfid);
-		P9_DPRINTK(P9_DEBUG_VFS, "fid lookup failed %d\n", retval);
+		p9_debug(P9_DEBUG_VFS, "fid lookup failed %d\n", retval);
 		return retval;
 	}
 	if (v9fs_proto_dotl(v9ses))
@@ -630,7 +648,7 @@ v9fs_create(struct v9fs_session_info *v9ses, struct inode *dir,
 	struct p9_fid *dfid, *ofid, *fid;
 	struct inode *inode;
 
-	P9_DPRINTK(P9_DEBUG_VFS, "name %s\n", dentry->d_name.name);
+	p9_debug(P9_DEBUG_VFS, "name %s\n", dentry->d_name.name);
 
 	err = 0;
 	ofid = NULL;
@@ -639,7 +657,7 @@ v9fs_create(struct v9fs_session_info *v9ses, struct inode *dir,
 	dfid = v9fs_fid_lookup(dentry->d_parent);
 	if (IS_ERR(dfid)) {
 		err = PTR_ERR(dfid);
-		P9_DPRINTK(P9_DEBUG_VFS, "fid lookup failed %d\n", err);
+		p9_debug(P9_DEBUG_VFS, "fid lookup failed %d\n", err);
 		return ERR_PTR(err);
 	}
 
@@ -647,36 +665,41 @@ v9fs_create(struct v9fs_session_info *v9ses, struct inode *dir,
 	ofid = p9_client_walk(dfid, 0, NULL, 1);
 	if (IS_ERR(ofid)) {
 		err = PTR_ERR(ofid);
-		P9_DPRINTK(P9_DEBUG_VFS, "p9_client_walk failed %d\n", err);
+		p9_debug(P9_DEBUG_VFS, "p9_client_walk failed %d\n", err);
 		return ERR_PTR(err);
 	}
 
 	err = p9_client_fcreate(ofid, name, perm, mode, extension);
 	if (err < 0) {
-		P9_DPRINTK(P9_DEBUG_VFS, "p9_client_fcreate failed %d\n", err);
-		goto error;
-	}
-
-	/* now walk from the parent so we can get unopened fid */
-	fid = p9_client_walk(dfid, 1, &name, 1);
-	if (IS_ERR(fid)) {
-		err = PTR_ERR(fid);
-		P9_DPRINTK(P9_DEBUG_VFS, "p9_client_walk failed %d\n", err);
-		fid = NULL;
+		p9_debug(P9_DEBUG_VFS, "p9_client_fcreate failed %d\n", err);
 		goto error;
 	}
 
-	/* instantiate inode and assign the unopened fid to the dentry */
-	inode = v9fs_get_new_inode_from_fid(v9ses, fid, dir->i_sb);
-	if (IS_ERR(inode)) {
-		err = PTR_ERR(inode);
-		P9_DPRINTK(P9_DEBUG_VFS, "inode creation failed %d\n", err);
-		goto error;
+	if (!(perm & P9_DMLINK)) {
+		/* now walk from the parent so we can get unopened fid */
+		fid = p9_client_walk(dfid, 1, &name, 1);
+		if (IS_ERR(fid)) {
+			err = PTR_ERR(fid);
+			p9_debug(P9_DEBUG_VFS,
+				   "p9_client_walk failed %d\n", err);
+			fid = NULL;
+			goto error;
+		}
+		/*
+		 * instantiate inode and assign the unopened fid to the dentry
+		 */
+		inode = v9fs_get_new_inode_from_fid(v9ses, fid, dir->i_sb);
+		if (IS_ERR(inode)) {
+			err = PTR_ERR(inode);
+			p9_debug(P9_DEBUG_VFS,
+				   "inode creation failed %d\n", err);
+			goto error;
+		}
+		err = v9fs_fid_add(dentry, fid);
+		if (err < 0)
+			goto error;
+		d_instantiate(dentry, inode);
 	}
-	err = v9fs_fid_add(dentry, fid);
-	if (err < 0)
-		goto error;
-	d_instantiate(dentry, inode);
 	return ofid;
 error:
 	if (ofid)
@@ -788,7 +811,7 @@ static int v9fs_vfs_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode
 	struct p9_fid *fid;
 	struct v9fs_session_info *v9ses;
 
-	P9_DPRINTK(P9_DEBUG_VFS, "name %s\n", dentry->d_name.name);
+	p9_debug(P9_DEBUG_VFS, "name %s\n", dentry->d_name.name);
 	err = 0;
 	v9ses = v9fs_inode2v9ses(dir);
 	perm = unixmode2p9mode(v9ses, mode | S_IFDIR);
@@ -826,8 +849,8 @@ struct dentry *v9fs_vfs_lookup(struct inode *dir, struct dentry *dentry,
 	char *name;
 	int result = 0;
 
-	P9_DPRINTK(P9_DEBUG_VFS, "dir: %p dentry: (%s) %p nameidata: %p\n",
-		dir, dentry->d_name.name, dentry, nameidata);
+	p9_debug(P9_DEBUG_VFS, "dir: %p dentry: (%s) %p nameidata: %p\n",
+		 dir, dentry->d_name.name, dentry, nameidata);
 
 	if (dentry->d_name.len > NAME_MAX)
 		return ERR_PTR(-ENAMETOOLONG);
@@ -933,7 +956,7 @@ v9fs_vfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 	struct p9_fid *newdirfid;
 	struct p9_wstat wstat;
 
-	P9_DPRINTK(P9_DEBUG_VFS, "\n");
+	p9_debug(P9_DEBUG_VFS, "\n");
 	retval = 0;
 	old_inode = old_dentry->d_inode;
 	new_inode = new_dentry->d_inode;
@@ -969,8 +992,7 @@ v9fs_vfs_rename(struct inode *old_dir, struct dentry *old_dentry,
 		 * 9P .u can only handle file rename in the same directory
 		 */
 
-		P9_DPRINTK(P9_DEBUG_ERROR,
-				"old dir and new dir are different\n");
+		p9_debug(P9_DEBUG_ERROR, "old dir and new dir are different\n");
 		retval = -EXDEV;
 		goto clunk_newdir;
 	}
@@ -1026,7 +1048,7 @@ v9fs_vfs_getattr(struct vfsmount *mnt, struct dentry *dentry,
 	struct p9_fid *fid;
 	struct p9_wstat *st;
 
-	P9_DPRINTK(P9_DEBUG_VFS, "dentry: %p\n", dentry);
+	p9_debug(P9_DEBUG_VFS, "dentry: %p\n", dentry);
 	err = -EPERM;
 	v9ses = v9fs_dentry2v9ses(dentry);
 	if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) {
@@ -1063,7 +1085,7 @@ static int v9fs_vfs_setattr(struct dentry *dentry, struct iattr *iattr)
 	struct p9_fid *fid;
 	struct p9_wstat wstat;
 
-	P9_DPRINTK(P9_DEBUG_VFS, "\n");
+	p9_debug(P9_DEBUG_VFS, "\n");
 	retval = inode_change_ok(dentry->d_inode, iattr);
 	if (retval)
 		return retval;
@@ -1162,7 +1184,7 @@ v9fs_stat2inode(struct p9_wstat *stat, struct inode *inode,
 				set_nlink(inode, i_nlink);
 		}
 	}
-	mode = stat->mode & S_IALLUGO;
+	mode = p9mode2perm(v9ses, stat);
 	mode |= inode->i_mode & ~S_IALLUGO;
 	inode->i_mode = mode;
 	i_size_write(inode, stat->length);
@@ -1208,7 +1230,7 @@ static int v9fs_readlink(struct dentry *dentry, char *buffer, int buflen)
 	struct p9_fid *fid;
 	struct p9_wstat *st;
 
-	P9_DPRINTK(P9_DEBUG_VFS, " %s\n", dentry->d_name.name);
+	p9_debug(P9_DEBUG_VFS, " %s\n", dentry->d_name.name);
 	retval = -EPERM;
 	v9ses = v9fs_dentry2v9ses(dentry);
 	fid = v9fs_fid_lookup(dentry);
@@ -1230,8 +1252,8 @@ static int v9fs_readlink(struct dentry *dentry, char *buffer, int buflen)
 	/* copy extension buffer into buffer */
 	strncpy(buffer, st->extension, buflen);
 
-	P9_DPRINTK(P9_DEBUG_VFS,
-		"%s -> %s (%s)\n", dentry->d_name.name, st->extension, buffer);
+	p9_debug(P9_DEBUG_VFS, "%s -> %s (%s)\n",
+		 dentry->d_name.name, st->extension, buffer);
 
 	retval = strnlen(buffer, buflen);
 done:
@@ -1252,7 +1274,7 @@ static void *v9fs_vfs_follow_link(struct dentry *dentry, struct nameidata *nd)
 	int len = 0;
 	char *link = __getname();
 
-	P9_DPRINTK(P9_DEBUG_VFS, "%s n", dentry->d_name.name);
+	p9_debug(P9_DEBUG_VFS, "%s\n", dentry->d_name.name);
 
 	if (!link)
 		link = ERR_PTR(-ENOMEM);
@@ -1283,8 +1305,8 @@ v9fs_vfs_put_link(struct dentry *dentry, struct nameidata *nd, void *p)
 {
 	char *s = nd_get_link(nd);
 
-	P9_DPRINTK(P9_DEBUG_VFS, " %s %s\n", dentry->d_name.name,
-		IS_ERR(s) ? "<error>" : s);
+	p9_debug(P9_DEBUG_VFS, " %s %s\n",
+		 dentry->d_name.name, IS_ERR(s) ? "<error>" : s);
 	if (!IS_ERR(s))
 		__putname(s);
 }
@@ -1306,7 +1328,7 @@ static int v9fs_vfs_mkspecial(struct inode *dir, struct dentry *dentry,
 
 	v9ses = v9fs_inode2v9ses(dir);
 	if (!v9fs_proto_dotu(v9ses)) {
-		P9_DPRINTK(P9_DEBUG_ERROR, "not extended\n");
+		p9_debug(P9_DEBUG_ERROR, "not extended\n");
 		return -EPERM;
 	}
 
@@ -1333,8 +1355,8 @@ static int v9fs_vfs_mkspecial(struct inode *dir, struct dentry *dentry,
 static int
 v9fs_vfs_symlink(struct inode *dir, struct dentry *dentry, const char *symname)
 {
-	P9_DPRINTK(P9_DEBUG_VFS, " %lu,%s,%s\n", dir->i_ino,
-					dentry->d_name.name, symname);
+	p9_debug(P9_DEBUG_VFS, " %lu,%s,%s\n",
+		 dir->i_ino, dentry->d_name.name, symname);
 
 	return v9fs_vfs_mkspecial(dir, dentry, P9_DMSYMLINK, symname);
 }
@@ -1355,9 +1377,8 @@ v9fs_vfs_link(struct dentry *old_dentry, struct inode *dir,
 	char *name;
 	struct p9_fid *oldfid;
 
-	P9_DPRINTK(P9_DEBUG_VFS,
-		" %lu,%s,%s\n", dir->i_ino, dentry->d_name.name,
-		old_dentry->d_name.name);
+	p9_debug(P9_DEBUG_VFS, " %lu,%s,%s\n",
+		 dir->i_ino, dentry->d_name.name, old_dentry->d_name.name);
 
 	oldfid = v9fs_fid_clone(old_dentry);
 	if (IS_ERR(oldfid))
@@ -1398,9 +1419,9 @@ v9fs_vfs_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t rde
 	char *name;
 	u32 perm;
 
-	P9_DPRINTK(P9_DEBUG_VFS,
-		" %lu,%s mode: %hx MAJOR: %u MINOR: %u\n", dir->i_ino,
-		dentry->d_name.name, mode, MAJOR(rdev), MINOR(rdev));
+	p9_debug(P9_DEBUG_VFS, " %lu,%s mode: %hx MAJOR: %u MINOR: %u\n",
+		 dir->i_ino, dentry->d_name.name, mode,
+		 MAJOR(rdev), MINOR(rdev));
 
 	if (!new_valid_dev(rdev))
 		return -EINVAL;
diff --git a/fs/9p/vfs_inode_dotl.c b/fs/9p/vfs_inode_dotl.c
index 8ef152ac6a16..a1e6c990cd41 100644
--- a/fs/9p/vfs_inode_dotl.c
+++ b/fs/9p/vfs_inode_dotl.c
@@ -283,13 +283,13 @@ v9fs_vfs_create_dotl(struct inode *dir, struct dentry *dentry, umode_t omode,
 	}
 
 	name = (char *) dentry->d_name.name;
-	P9_DPRINTK(P9_DEBUG_VFS, "v9fs_vfs_create_dotl: name:%s flags:0x%x "
-			"mode:0x%hx\n", name, flags, omode);
+	p9_debug(P9_DEBUG_VFS, "name:%s flags:0x%x mode:0x%hx\n",
+		 name, flags, omode);
 
 	dfid = v9fs_fid_lookup(dentry->d_parent);
 	if (IS_ERR(dfid)) {
 		err = PTR_ERR(dfid);
-		P9_DPRINTK(P9_DEBUG_VFS, "fid lookup failed %d\n", err);
+		p9_debug(P9_DEBUG_VFS, "fid lookup failed %d\n", err);
 		return err;
 	}
 
@@ -297,7 +297,7 @@ v9fs_vfs_create_dotl(struct inode *dir, struct dentry *dentry, umode_t omode,
 	ofid = p9_client_walk(dfid, 0, NULL, 1);
 	if (IS_ERR(ofid)) {
 		err = PTR_ERR(ofid);
-		P9_DPRINTK(P9_DEBUG_VFS, "p9_client_walk failed %d\n", err);
+		p9_debug(P9_DEBUG_VFS, "p9_client_walk failed %d\n", err);
 		return err;
 	}
 
@@ -307,16 +307,15 @@ v9fs_vfs_create_dotl(struct inode *dir, struct dentry *dentry, umode_t omode,
 	/* Update mode based on ACL value */
 	err = v9fs_acl_mode(dir, &mode, &dacl, &pacl);
 	if (err) {
-		P9_DPRINTK(P9_DEBUG_VFS,
-			   "Failed to get acl values in creat %d\n", err);
+		p9_debug(P9_DEBUG_VFS, "Failed to get acl values in creat %d\n",
+			 err);
 		goto error;
 	}
 	err = p9_client_create_dotl(ofid, name, v9fs_open_to_dotl_flags(flags),
 				    mode, gid, &qid);
 	if (err < 0) {
-		P9_DPRINTK(P9_DEBUG_VFS,
-				"p9_client_open_dotl failed in creat %d\n",
-				err);
+		p9_debug(P9_DEBUG_VFS, "p9_client_open_dotl failed in creat %d\n",
+			 err);
 		goto error;
 	}
 	v9fs_invalidate_inode_attr(dir);
@@ -325,14 +324,14 @@ v9fs_vfs_create_dotl(struct inode *dir, struct dentry *dentry, umode_t omode,
 	fid = p9_client_walk(dfid, 1, &name, 1);
 	if (IS_ERR(fid)) {
 		err = PTR_ERR(fid);
-		P9_DPRINTK(P9_DEBUG_VFS, "p9_client_walk failed %d\n", err);
+		p9_debug(P9_DEBUG_VFS, "p9_client_walk failed %d\n", err);
 		fid = NULL;
 		goto error;
 	}
 	inode = v9fs_get_new_inode_from_fid(v9ses, fid, dir->i_sb);
 	if (IS_ERR(inode)) {
 		err = PTR_ERR(inode);
-		P9_DPRINTK(P9_DEBUG_VFS, "inode creation failed %d\n", err);
+		p9_debug(P9_DEBUG_VFS, "inode creation failed %d\n", err);
 		goto error;
 	}
 	err = v9fs_fid_add(dentry, fid);
@@ -408,7 +407,7 @@ static int v9fs_vfs_mkdir_dotl(struct inode *dir,
 	struct dentry *dir_dentry;
 	struct posix_acl *dacl = NULL, *pacl = NULL;
 
-	P9_DPRINTK(P9_DEBUG_VFS, "name %s\n", dentry->d_name.name);
+	p9_debug(P9_DEBUG_VFS, "name %s\n", dentry->d_name.name);
 	err = 0;
 	v9ses = v9fs_inode2v9ses(dir);
 
@@ -420,7 +419,7 @@ static int v9fs_vfs_mkdir_dotl(struct inode *dir,
 	dfid = v9fs_fid_lookup(dir_dentry);
 	if (IS_ERR(dfid)) {
 		err = PTR_ERR(dfid);
-		P9_DPRINTK(P9_DEBUG_VFS, "fid lookup failed %d\n", err);
+		p9_debug(P9_DEBUG_VFS, "fid lookup failed %d\n", err);
 		dfid = NULL;
 		goto error;
 	}
@@ -430,8 +429,8 @@ static int v9fs_vfs_mkdir_dotl(struct inode *dir,
 	/* Update mode based on ACL value */
 	err = v9fs_acl_mode(dir, &mode, &dacl, &pacl);
 	if (err) {
-		P9_DPRINTK(P9_DEBUG_VFS,
-			   "Failed to get acl values in mkdir %d\n", err);
+		p9_debug(P9_DEBUG_VFS, "Failed to get acl values in mkdir %d\n",
+			 err);
 		goto error;
 	}
 	name = (char *) dentry->d_name.name;
@@ -444,8 +443,8 @@ static int v9fs_vfs_mkdir_dotl(struct inode *dir,
 		fid = p9_client_walk(dfid, 1, &name, 1);
 		if (IS_ERR(fid)) {
 			err = PTR_ERR(fid);
-			P9_DPRINTK(P9_DEBUG_VFS, "p9_client_walk failed %d\n",
-				err);
+			p9_debug(P9_DEBUG_VFS, "p9_client_walk failed %d\n",
+				 err);
 			fid = NULL;
 			goto error;
 		}
@@ -453,8 +452,8 @@ static int v9fs_vfs_mkdir_dotl(struct inode *dir,
 		inode = v9fs_get_new_inode_from_fid(v9ses, fid, dir->i_sb);
 		if (IS_ERR(inode)) {
 			err = PTR_ERR(inode);
-			P9_DPRINTK(P9_DEBUG_VFS, "inode creation failed %d\n",
-				err);
+			p9_debug(P9_DEBUG_VFS, "inode creation failed %d\n",
+				 err);
 			goto error;
 		}
 		err = v9fs_fid_add(dentry, fid);
@@ -495,7 +494,7 @@ v9fs_vfs_getattr_dotl(struct vfsmount *mnt, struct dentry *dentry,
 	struct p9_fid *fid;
 	struct p9_stat_dotl *st;
 
-	P9_DPRINTK(P9_DEBUG_VFS, "dentry: %p\n", dentry);
+	p9_debug(P9_DEBUG_VFS, "dentry: %p\n", dentry);
 	err = -EPERM;
 	v9ses = v9fs_dentry2v9ses(dentry);
 	if (v9ses->cache == CACHE_LOOSE || v9ses->cache == CACHE_FSCACHE) {
@@ -523,6 +522,46 @@ v9fs_vfs_getattr_dotl(struct vfsmount *mnt, struct dentry *dentry,
 	return 0;
 }
 
+/*
+ * Attribute flags.
+ */
+#define P9_ATTR_MODE		(1 << 0)
+#define P9_ATTR_UID		(1 << 1)
+#define P9_ATTR_GID		(1 << 2)
+#define P9_ATTR_SIZE		(1 << 3)
+#define P9_ATTR_ATIME		(1 << 4)
+#define P9_ATTR_MTIME		(1 << 5)
+#define P9_ATTR_CTIME		(1 << 6)
+#define P9_ATTR_ATIME_SET	(1 << 7)
+#define P9_ATTR_MTIME_SET	(1 << 8)
+
+struct dotl_iattr_map {
+	int iattr_valid;
+	int p9_iattr_valid;
+};
+
+static int v9fs_mapped_iattr_valid(int iattr_valid)
+{
+	int i;
+	int p9_iattr_valid = 0;
+	struct dotl_iattr_map dotl_iattr_map[] = {
+		{ ATTR_MODE,		P9_ATTR_MODE },
+		{ ATTR_UID,		P9_ATTR_UID },
+		{ ATTR_GID,		P9_ATTR_GID },
+		{ ATTR_SIZE,		P9_ATTR_SIZE },
+		{ ATTR_ATIME,		P9_ATTR_ATIME },
+		{ ATTR_MTIME,		P9_ATTR_MTIME },
+		{ ATTR_CTIME,		P9_ATTR_CTIME },
+		{ ATTR_ATIME_SET,	P9_ATTR_ATIME_SET },
+		{ ATTR_MTIME_SET,	P9_ATTR_MTIME_SET },
+	};
+	for (i = 0; i < ARRAY_SIZE(dotl_iattr_map); i++) {
+		if (iattr_valid & dotl_iattr_map[i].iattr_valid)
+			p9_iattr_valid |= dotl_iattr_map[i].p9_iattr_valid;
+	}
+	return p9_iattr_valid;
+}
+
 /**
  * v9fs_vfs_setattr_dotl - set file metadata
  * @dentry: file whose metadata to set
@@ -537,13 +576,13 @@ int v9fs_vfs_setattr_dotl(struct dentry *dentry, struct iattr *iattr)
 	struct p9_fid *fid;
 	struct p9_iattr_dotl p9attr;
 
-	P9_DPRINTK(P9_DEBUG_VFS, "\n");
+	p9_debug(P9_DEBUG_VFS, "\n");
 
 	retval = inode_change_ok(dentry->d_inode, iattr);
 	if (retval)
 		return retval;
 
-	p9attr.valid = iattr->ia_valid;
+	p9attr.valid = v9fs_mapped_iattr_valid(iattr->ia_valid);
 	p9attr.mode = iattr->ia_mode;
 	p9attr.uid = iattr->ia_uid;
 	p9attr.gid = iattr->ia_gid;
@@ -670,14 +709,13 @@ v9fs_vfs_symlink_dotl(struct inode *dir, struct dentry *dentry,
 	struct v9fs_session_info *v9ses;
 
 	name = (char *) dentry->d_name.name;
-	P9_DPRINTK(P9_DEBUG_VFS, "v9fs_vfs_symlink_dotl : %lu,%s,%s\n",
-			dir->i_ino, name, symname);
+	p9_debug(P9_DEBUG_VFS, "%lu,%s,%s\n", dir->i_ino, name, symname);
 	v9ses = v9fs_inode2v9ses(dir);
 
 	dfid = v9fs_fid_lookup(dentry->d_parent);
 	if (IS_ERR(dfid)) {
 		err = PTR_ERR(dfid);
-		P9_DPRINTK(P9_DEBUG_VFS, "fid lookup failed %d\n", err);
+		p9_debug(P9_DEBUG_VFS, "fid lookup failed %d\n", err);
 		return err;
 	}
 
@@ -687,7 +725,7 @@ v9fs_vfs_symlink_dotl(struct inode *dir, struct dentry *dentry,
 	err = p9_client_symlink(dfid, name, (char *)symname, gid, &qid);
 
 	if (err < 0) {
-		P9_DPRINTK(P9_DEBUG_VFS, "p9_client_symlink failed %d\n", err);
+		p9_debug(P9_DEBUG_VFS, "p9_client_symlink failed %d\n", err);
 		goto error;
 	}
 
@@ -697,8 +735,8 @@ v9fs_vfs_symlink_dotl(struct inode *dir, struct dentry *dentry,
 		fid = p9_client_walk(dfid, 1, &name, 1);
 		if (IS_ERR(fid)) {
 			err = PTR_ERR(fid);
-			P9_DPRINTK(P9_DEBUG_VFS, "p9_client_walk failed %d\n",
-					err);
+			p9_debug(P9_DEBUG_VFS, "p9_client_walk failed %d\n",
+				 err);
 			fid = NULL;
 			goto error;
 		}
@@ -707,8 +745,8 @@ v9fs_vfs_symlink_dotl(struct inode *dir, struct dentry *dentry,
 		inode = v9fs_get_new_inode_from_fid(v9ses, fid, dir->i_sb);
 		if (IS_ERR(inode)) {
 			err = PTR_ERR(inode);
-			P9_DPRINTK(P9_DEBUG_VFS, "inode creation failed %d\n",
-					err);
+			p9_debug(P9_DEBUG_VFS, "inode creation failed %d\n",
+				 err);
 			goto error;
 		}
 		err = v9fs_fid_add(dentry, fid);
@@ -751,9 +789,8 @@ v9fs_vfs_link_dotl(struct dentry *old_dentry, struct inode *dir,
 	struct p9_fid *dfid, *oldfid;
 	struct v9fs_session_info *v9ses;
 
-	P9_DPRINTK(P9_DEBUG_VFS, "dir ino: %lu, old_name: %s, new_name: %s\n",
-			dir->i_ino, old_dentry->d_name.name,
-			dentry->d_name.name);
+	p9_debug(P9_DEBUG_VFS, "dir ino: %lu, old_name: %s, new_name: %s\n",
+		 dir->i_ino, old_dentry->d_name.name, dentry->d_name.name);
 
 	v9ses = v9fs_inode2v9ses(dir);
 	dir_dentry = v9fs_dentry_from_dir_inode(dir);
@@ -770,7 +807,7 @@ v9fs_vfs_link_dotl(struct dentry *old_dentry, struct inode *dir,
 	err = p9_client_link(dfid, oldfid, (char *)dentry->d_name.name);
 
 	if (err < 0) {
-		P9_DPRINTK(P9_DEBUG_VFS, "p9_client_link failed %d\n", err);
+		p9_debug(P9_DEBUG_VFS, "p9_client_link failed %d\n", err);
 		return err;
 	}
 
@@ -813,9 +850,9 @@ v9fs_vfs_mknod_dotl(struct inode *dir, struct dentry *dentry, umode_t omode,
 	struct dentry *dir_dentry;
 	struct posix_acl *dacl = NULL, *pacl = NULL;
 
-	P9_DPRINTK(P9_DEBUG_VFS,
-		" %lu,%s mode: %hx MAJOR: %u MINOR: %u\n", dir->i_ino,
-		dentry->d_name.name, omode, MAJOR(rdev), MINOR(rdev));
+	p9_debug(P9_DEBUG_VFS, " %lu,%s mode: %hx MAJOR: %u MINOR: %u\n",
+		 dir->i_ino, dentry->d_name.name, omode,
+		 MAJOR(rdev), MINOR(rdev));
 
 	if (!new_valid_dev(rdev))
 		return -EINVAL;
@@ -825,7 +862,7 @@ v9fs_vfs_mknod_dotl(struct inode *dir, struct dentry *dentry, umode_t omode,
 	dfid = v9fs_fid_lookup(dir_dentry);
 	if (IS_ERR(dfid)) {
 		err = PTR_ERR(dfid);
-		P9_DPRINTK(P9_DEBUG_VFS, "fid lookup failed %d\n", err);
+		p9_debug(P9_DEBUG_VFS, "fid lookup failed %d\n", err);
 		dfid = NULL;
 		goto error;
 	}
@@ -835,8 +872,8 @@ v9fs_vfs_mknod_dotl(struct inode *dir, struct dentry *dentry, umode_t omode,
 	/* Update mode based on ACL value */
 	err = v9fs_acl_mode(dir, &mode, &dacl, &pacl);
 	if (err) {
-		P9_DPRINTK(P9_DEBUG_VFS,
-			   "Failed to get acl values in mknod %d\n", err);
+		p9_debug(P9_DEBUG_VFS, "Failed to get acl values in mknod %d\n",
+			 err);
 		goto error;
 	}
 	name = (char *) dentry->d_name.name;
@@ -851,8 +888,8 @@ v9fs_vfs_mknod_dotl(struct inode *dir, struct dentry *dentry, umode_t omode,
 		fid = p9_client_walk(dfid, 1, &name, 1);
 		if (IS_ERR(fid)) {
 			err = PTR_ERR(fid);
-			P9_DPRINTK(P9_DEBUG_VFS, "p9_client_walk failed %d\n",
-				err);
+			p9_debug(P9_DEBUG_VFS, "p9_client_walk failed %d\n",
+				 err);
 			fid = NULL;
 			goto error;
 		}
@@ -860,8 +897,8 @@ v9fs_vfs_mknod_dotl(struct inode *dir, struct dentry *dentry, umode_t omode,
 		inode = v9fs_get_new_inode_from_fid(v9ses, fid, dir->i_sb);
 		if (IS_ERR(inode)) {
 			err = PTR_ERR(inode);
-			P9_DPRINTK(P9_DEBUG_VFS, "inode creation failed %d\n",
-				err);
+			p9_debug(P9_DEBUG_VFS, "inode creation failed %d\n",
+				 err);
 			goto error;
 		}
 		err = v9fs_fid_add(dentry, fid);
@@ -905,7 +942,7 @@ v9fs_vfs_follow_link_dotl(struct dentry *dentry, struct nameidata *nd)
 	char *link = __getname();
 	char *target;
 
-	P9_DPRINTK(P9_DEBUG_VFS, "%s\n", dentry->d_name.name);
+	p9_debug(P9_DEBUG_VFS, "%s\n", dentry->d_name.name);
 
 	if (!link) {
 		link = ERR_PTR(-ENOMEM);
diff --git a/fs/9p/vfs_super.c b/fs/9p/vfs_super.c
index f68ff65a32a5..7b0cd87b07c2 100644
--- a/fs/9p/vfs_super.c
+++ b/fs/9p/vfs_super.c
@@ -121,7 +121,7 @@ static struct dentry *v9fs_mount(struct file_system_type *fs_type, int flags,
 	struct p9_fid *fid;
 	int retval = 0;
 
-	P9_DPRINTK(P9_DEBUG_VFS, " \n");
+	p9_debug(P9_DEBUG_VFS, "\n");
 
 	v9ses = kzalloc(sizeof(struct v9fs_session_info), GFP_KERNEL);
 	if (!v9ses)
@@ -191,7 +191,7 @@ static struct dentry *v9fs_mount(struct file_system_type *fs_type, int flags,
 		goto release_sb;
 	v9fs_fid_add(root, fid);
 
-	P9_DPRINTK(P9_DEBUG_VFS, " simple set mount, return 0\n");
+	p9_debug(P9_DEBUG_VFS, " simple set mount, return 0\n");
 	return dget(sb->s_root);
 
 clunk_fid:
@@ -223,7 +223,7 @@ static void v9fs_kill_super(struct super_block *s)
 {
 	struct v9fs_session_info *v9ses = s->s_fs_info;
 
-	P9_DPRINTK(P9_DEBUG_VFS, " %p\n", s);
+	p9_debug(P9_DEBUG_VFS, " %p\n", s);
 
 	kill_anon_super(s);
 
@@ -231,7 +231,7 @@ static void v9fs_kill_super(struct super_block *s)
 	v9fs_session_close(v9ses);
 	kfree(v9ses);
 	s->s_fs_info = NULL;
-	P9_DPRINTK(P9_DEBUG_VFS, "exiting kill_super\n");
+	p9_debug(P9_DEBUG_VFS, "exiting kill_super\n");
 }
 
 static void
@@ -303,7 +303,7 @@ static int v9fs_write_inode(struct inode *inode,
 	 * send an fsync request to server irrespective of
 	 * wbc->sync_mode.
 	 */
-	P9_DPRINTK(P9_DEBUG_VFS, "%s: inode %p\n", __func__, inode);
+	p9_debug(P9_DEBUG_VFS, "%s: inode %p\n", __func__, inode);
 	v9inode = V9FS_I(inode);
 	if (!v9inode->writeback_fid)
 		return 0;
@@ -326,7 +326,7 @@ static int v9fs_write_inode_dotl(struct inode *inode,
 	 * send an fsync request to server irrespective of
 	 * wbc->sync_mode.
 	 */
-	P9_DPRINTK(P9_DEBUG_VFS, "%s: inode %p\n", __func__, inode);
+	p9_debug(P9_DEBUG_VFS, "%s: inode %p\n", __func__, inode);
 	v9inode = V9FS_I(inode);
 	if (!v9inode->writeback_fid)
 		return 0;
diff --git a/fs/9p/xattr.c b/fs/9p/xattr.c
index d288773871b3..29653b70a9c3 100644
--- a/fs/9p/xattr.c
+++ b/fs/9p/xattr.c
@@ -32,8 +32,8 @@ ssize_t v9fs_fid_xattr_get(struct p9_fid *fid, const char *name,
 	attr_fid = p9_client_xattrwalk(fid, name, &attr_size);
 	if (IS_ERR(attr_fid)) {
 		retval = PTR_ERR(attr_fid);
-		P9_DPRINTK(P9_DEBUG_VFS,
-			"p9_client_attrwalk failed %zd\n", retval);
+		p9_debug(P9_DEBUG_VFS, "p9_client_attrwalk failed %zd\n",
+			 retval);
 		attr_fid = NULL;
 		goto error;
 	}
@@ -87,8 +87,8 @@ ssize_t v9fs_xattr_get(struct dentry *dentry, const char *name,
 {
 	struct p9_fid *fid;
 
-	P9_DPRINTK(P9_DEBUG_VFS, "%s: name = %s value_len = %zu\n",
-		__func__, name, buffer_size);
+	p9_debug(P9_DEBUG_VFS, "name = %s value_len = %zu\n",
+		 name, buffer_size);
 	fid = v9fs_fid_lookup(dentry);
 	if (IS_ERR(fid))
 		return PTR_ERR(fid);
@@ -115,8 +115,8 @@ int v9fs_xattr_set(struct dentry *dentry, const char *name,
 	int retval, msize, write_count;
 	struct p9_fid *fid = NULL;
 
-	P9_DPRINTK(P9_DEBUG_VFS, "%s: name = %s value_len = %zu flags = %d\n",
-		__func__, name, value_len, flags);
+	p9_debug(P9_DEBUG_VFS, "name = %s value_len = %zu flags = %d\n",
+		 name, value_len, flags);
 
 	fid = v9fs_fid_clone(dentry);
 	if (IS_ERR(fid)) {
@@ -129,8 +129,8 @@ int v9fs_xattr_set(struct dentry *dentry, const char *name,
 	 */
 	retval = p9_client_xattrcreate(fid, name, value_len, flags);
 	if (retval < 0) {
-		P9_DPRINTK(P9_DEBUG_VFS,
-			"p9_client_xattrcreate failed %d\n", retval);
+		p9_debug(P9_DEBUG_VFS, "p9_client_xattrcreate failed %d\n",
+			 retval);
 		goto error;
 	}
 	msize = fid->clnt->msize;
diff --git a/fs/Kconfig b/fs/Kconfig
index 30145d886bc2..d621f02a3f9e 100644
--- a/fs/Kconfig
+++ b/fs/Kconfig
@@ -218,6 +218,8 @@ source "fs/exofs/Kconfig"
 
 endif # MISC_FILESYSTEMS
 
+source "fs/exofs/Kconfig.ore"
+
 menuconfig NETWORK_FILESYSTEMS
 	bool "Network File Systems"
 	default y
diff --git a/fs/Kconfig.binfmt b/fs/Kconfig.binfmt
index 79e2ca7973b7..e95d1b64082c 100644
--- a/fs/Kconfig.binfmt
+++ b/fs/Kconfig.binfmt
@@ -27,6 +27,9 @@ config COMPAT_BINFMT_ELF
 	bool
 	depends on COMPAT && BINFMT_ELF
 
+config ARCH_BINFMT_ELF_RANDOMIZE_PIE
+	bool
+
 config BINFMT_ELF_FDPIC
 	bool "Kernel support for FDPIC ELF binaries"
 	default y
diff --git a/fs/binfmt_elf.c b/fs/binfmt_elf.c
index 21ac5ee4b43f..bcb884e2d613 100644
--- a/fs/binfmt_elf.c
+++ b/fs/binfmt_elf.c
@@ -794,7 +794,7 @@ static int load_elf_binary(struct linux_binprm *bprm, struct pt_regs *regs)
 			 * default mmap base, as well as whatever program they
 			 * might try to exec.  This is because the brk will
 			 * follow the loader, and is not movable.  */
-#if defined(CONFIG_X86) || defined(CONFIG_ARM)
+#ifdef CONFIG_ARCH_BINFMT_ELF_RANDOMIZE_PIE
 			/* Memory randomization might have been switched off
 			 * in runtime via sysctl.
 			 * If that is the case, retain the original non-zero
diff --git a/fs/btrfs/file.c b/fs/btrfs/file.c
index 97fbe939c050..034d98503229 100644
--- a/fs/btrfs/file.c
+++ b/fs/btrfs/file.c
@@ -1081,7 +1081,7 @@ static noinline int prepare_pages(struct btrfs_root *root, struct file *file,
 again:
 	for (i = 0; i < num_pages; i++) {
 		pages[i] = find_or_create_page(inode->i_mapping, index + i,
-					       mask);
+					       mask | __GFP_WRITE);
 		if (!pages[i]) {
 			faili = i - 1;
 			err = -ENOMEM;
@@ -1136,7 +1136,8 @@ again:
 				     GFP_NOFS);
 	}
 	for (i = 0; i < num_pages; i++) {
-		clear_page_dirty_for_io(pages[i]);
+		if (clear_page_dirty_for_io(pages[i]))
+			account_page_redirty(pages[i]);
 		set_page_extent_mapped(pages[i]);
 		WARN_ON(!PageLocked(pages[i]));
 	}
diff --git a/fs/ceph/super.c b/fs/ceph/super.c
index 11bd0fc4853f..48f61a12af66 100644
--- a/fs/ceph/super.c
+++ b/fs/ceph/super.c
@@ -636,19 +636,26 @@ static struct dentry *open_root_dentry(struct ceph_fs_client *fsc,
 	req->r_num_caps = 2;
 	err = ceph_mdsc_do_request(mdsc, NULL, req);
 	if (err == 0) {
+		struct inode *inode = req->r_target_inode;
+		req->r_target_inode = NULL;
 		dout("open_root_inode success\n");
-		if (ceph_ino(req->r_target_inode) == CEPH_INO_ROOT &&
+		if (ceph_ino(inode) == CEPH_INO_ROOT &&
 		    fsc->sb->s_root == NULL) {
-			root = d_alloc_root(req->r_target_inode);
+			root = d_alloc_root(inode);
+			if (!root) {
+				iput(inode);
+				root = ERR_PTR(-ENOMEM);
+				goto out;
+			}
 			ceph_init_dentry(root);
 		} else {
-			root = d_obtain_alias(req->r_target_inode);
+			root = d_obtain_alias(inode);
 		}
-		req->r_target_inode = NULL;
 		dout("open_root_inode success, root dentry is %p\n", root);
 	} else {
 		root = ERR_PTR(err);
 	}
+out:
 	ceph_mdsc_put_request(req);
 	return root;
 }
diff --git a/fs/char_dev.c b/fs/char_dev.c
index dca9e5e0f73b..3f152b92a94a 100644
--- a/fs/char_dev.c
+++ b/fs/char_dev.c
@@ -272,7 +272,7 @@ int __register_chrdev(unsigned int major, unsigned int baseminor,
 	cd = __register_chrdev_region(major, baseminor, count, name);
 	if (IS_ERR(cd))
 		return PTR_ERR(cd);
-	
+
 	cdev = cdev_alloc();
 	if (!cdev)
 		goto out2;
@@ -280,7 +280,7 @@ int __register_chrdev(unsigned int major, unsigned int baseminor,
 	cdev->owner = fops->owner;
 	cdev->ops = fops;
 	kobject_set_name(&cdev->kobj, "%s", name);
-		
+
 	err = cdev_add(cdev, MKDEV(cd->major, baseminor), count);
 	if (err)
 		goto out;
@@ -405,7 +405,7 @@ static int chrdev_open(struct inode *inode, struct file *filp)
 		goto out_cdev_put;
 
 	if (filp->f_op->open) {
-		ret = filp->f_op->open(inode,filp);
+		ret = filp->f_op->open(inode, filp);
 		if (ret)
 			goto out_cdev_put;
 	}
diff --git a/fs/dcache.c b/fs/dcache.c
index 9791b1e7eee4..3c6d3113a255 100644
--- a/fs/dcache.c
+++ b/fs/dcache.c
@@ -276,15 +276,15 @@ static void dentry_lru_prune(struct dentry *dentry)
 	}
 }
 
-static void dentry_lru_move_tail(struct dentry *dentry)
+static void dentry_lru_move_list(struct dentry *dentry, struct list_head *list)
 {
 	spin_lock(&dcache_lru_lock);
 	if (list_empty(&dentry->d_lru)) {
-		list_add_tail(&dentry->d_lru, &dentry->d_sb->s_dentry_lru);
+		list_add_tail(&dentry->d_lru, list);
 		dentry->d_sb->s_nr_dentry_unused++;
 		dentry_stat.nr_unused++;
 	} else {
-		list_move_tail(&dentry->d_lru, &dentry->d_sb->s_dentry_lru);
+		list_move_tail(&dentry->d_lru, list);
 	}
 	spin_unlock(&dcache_lru_lock);
 }
@@ -770,14 +770,18 @@ static void shrink_dentry_list(struct list_head *list)
 }
 
 /**
- * __shrink_dcache_sb - shrink the dentry LRU on a given superblock
- * @sb:		superblock to shrink dentry LRU.
- * @count:	number of entries to prune
- * @flags:	flags to control the dentry processing
+ * prune_dcache_sb - shrink the dcache
+ * @sb: superblock
+ * @count: number of entries to try to free
+ *
+ * Attempt to shrink the superblock dcache LRU by @count entries. This is
+ * done when we need more memory an called from the superblock shrinker
+ * function.
  *
- * If flags contains DCACHE_REFERENCED reference dentries will not be pruned.
+ * This function may fail to free any resources if all the dentries are in
+ * use.
  */
-static void __shrink_dcache_sb(struct super_block *sb, int count, int flags)
+void prune_dcache_sb(struct super_block *sb, int count)
 {
 	struct dentry *dentry;
 	LIST_HEAD(referenced);
@@ -796,13 +800,7 @@ relock:
 			goto relock;
 		}
 
-		/*
-		 * If we are honouring the DCACHE_REFERENCED flag and the
-		 * dentry has this flag set, don't free it.  Clear the flag
-		 * and put it back on the LRU.
-		 */
-		if (flags & DCACHE_REFERENCED &&
-				dentry->d_flags & DCACHE_REFERENCED) {
+		if (dentry->d_flags & DCACHE_REFERENCED) {
 			dentry->d_flags &= ~DCACHE_REFERENCED;
 			list_move(&dentry->d_lru, &referenced);
 			spin_unlock(&dentry->d_lock);
@@ -822,23 +820,6 @@ relock:
 }
 
 /**
- * prune_dcache_sb - shrink the dcache
- * @sb: superblock
- * @nr_to_scan: number of entries to try to free
- *
- * Attempt to shrink the superblock dcache LRU by @nr_to_scan entries. This is
- * done when we need more memory an called from the superblock shrinker
- * function.
- *
- * This function may fail to free any resources if all the dentries are in
- * use.
- */
-void prune_dcache_sb(struct super_block *sb, int nr_to_scan)
-{
-	__shrink_dcache_sb(sb, nr_to_scan, DCACHE_REFERENCED);
-}
-
-/**
  * shrink_dcache_sb - shrink dcache for a superblock
  * @sb: superblock
  *
@@ -1092,7 +1073,7 @@ EXPORT_SYMBOL(have_submounts);
  * drop the lock and return early due to latency
  * constraints.
  */
-static int select_parent(struct dentry * parent)
+static int select_parent(struct dentry *parent, struct list_head *dispose)
 {
 	struct dentry *this_parent;
 	struct list_head *next;
@@ -1114,12 +1095,11 @@ resume:
 
 		spin_lock_nested(&dentry->d_lock, DENTRY_D_LOCK_NESTED);
 
-		/* 
-		 * move only zero ref count dentries to the end 
-		 * of the unused list for prune_dcache
+		/*
+		 * move only zero ref count dentries to the dispose list.
 		 */
 		if (!dentry->d_count) {
-			dentry_lru_move_tail(dentry);
+			dentry_lru_move_list(dentry, dispose);
 			found++;
 		} else {
 			dentry_lru_del(dentry);
@@ -1181,14 +1161,13 @@ rename_retry:
  *
  * Prune the dcache to remove unused children of the parent dentry.
  */
- 
 void shrink_dcache_parent(struct dentry * parent)
 {
-	struct super_block *sb = parent->d_sb;
+	LIST_HEAD(dispose);
 	int found;
 
-	while ((found = select_parent(parent)) != 0)
-		__shrink_dcache_sb(sb, found, 0);
+	while ((found = select_parent(parent, &dispose)) != 0)
+		shrink_dentry_list(&dispose);
 }
 EXPORT_SYMBOL(shrink_dcache_parent);
 
@@ -1461,6 +1440,23 @@ struct dentry * d_alloc_root(struct inode * root_inode)
 }
 EXPORT_SYMBOL(d_alloc_root);
 
+struct dentry *d_make_root(struct inode *root_inode)
+{
+	struct dentry *res = NULL;
+
+	if (root_inode) {
+		static const struct qstr name = { .name = "/", .len = 1 };
+
+		res = __d_alloc(root_inode->i_sb, &name);
+		if (res)
+			d_instantiate(res, root_inode);
+		else
+			iput(root_inode);
+	}
+	return res;
+}
+EXPORT_SYMBOL(d_make_root);
+
 static struct dentry * __d_find_any_alias(struct inode *inode)
 {
 	struct dentry *alias;
diff --git a/fs/devpts/inode.c b/fs/devpts/inode.c
index 79673eb71151..c4e2a58a2e82 100644
--- a/fs/devpts/inode.c
+++ b/fs/devpts/inode.c
@@ -301,7 +301,7 @@ devpts_fill_super(struct super_block *s, void *data, int silent)
 
 	inode = new_inode(s);
 	if (!inode)
-		goto free_fsi;
+		goto fail;
 	inode->i_ino = 1;
 	inode->i_mtime = inode->i_atime = inode->i_ctime = CURRENT_TIME;
 	inode->i_mode = S_IFDIR | S_IRUGO | S_IXUGO | S_IWUSR;
@@ -316,8 +316,6 @@ devpts_fill_super(struct super_block *s, void *data, int silent)
 	printk(KERN_ERR "devpts: get root dentry failed\n");
 	iput(inode);
 
-free_fsi:
-	kfree(s->s_fs_info);
 fail:
 	return -ENOMEM;
 }
diff --git a/fs/dlm/config.c b/fs/dlm/config.c
index 6cf72fcc0d0c..e7e327d43fa5 100644
--- a/fs/dlm/config.c
+++ b/fs/dlm/config.c
@@ -2,7 +2,7 @@
 *******************************************************************************
 **
 **  Copyright (C) Sistina Software, Inc.  1997-2003  All rights reserved.
-**  Copyright (C) 2004-2008 Red Hat, Inc.  All rights reserved.
+**  Copyright (C) 2004-2011 Red Hat, Inc.  All rights reserved.
 **
 **  This copyrighted material is made available to anyone wishing to use,
 **  modify, copy, or redistribute it subject to the terms and conditions
@@ -17,6 +17,7 @@
 #include <linux/slab.h>
 #include <linux/in.h>
 #include <linux/in6.h>
+#include <linux/dlmconstants.h>
 #include <net/ipv6.h>
 #include <net/sock.h>
 
@@ -36,6 +37,7 @@
 static struct config_group *space_list;
 static struct config_group *comm_list;
 static struct dlm_comm *local_comm;
+static uint32_t dlm_comm_count;
 
 struct dlm_clusters;
 struct dlm_cluster;
@@ -103,6 +105,8 @@ struct dlm_cluster {
 	unsigned int cl_timewarn_cs;
 	unsigned int cl_waitwarn_us;
 	unsigned int cl_new_rsb_count;
+	unsigned int cl_recover_callbacks;
+	char cl_cluster_name[DLM_LOCKSPACE_LEN];
 };
 
 enum {
@@ -118,6 +122,8 @@ enum {
 	CLUSTER_ATTR_TIMEWARN_CS,
 	CLUSTER_ATTR_WAITWARN_US,
 	CLUSTER_ATTR_NEW_RSB_COUNT,
+	CLUSTER_ATTR_RECOVER_CALLBACKS,
+	CLUSTER_ATTR_CLUSTER_NAME,
 };
 
 struct cluster_attribute {
@@ -126,6 +132,27 @@ struct cluster_attribute {
 	ssize_t (*store)(struct dlm_cluster *, const char *, size_t);
 };
 
+static ssize_t cluster_cluster_name_read(struct dlm_cluster *cl, char *buf)
+{
+	return sprintf(buf, "%s\n", cl->cl_cluster_name);
+}
+
+static ssize_t cluster_cluster_name_write(struct dlm_cluster *cl,
+					  const char *buf, size_t len)
+{
+	strncpy(dlm_config.ci_cluster_name, buf, DLM_LOCKSPACE_LEN);
+	strncpy(cl->cl_cluster_name, buf, DLM_LOCKSPACE_LEN);
+	return len;
+}
+
+static struct cluster_attribute cluster_attr_cluster_name = {
+	.attr   = { .ca_owner = THIS_MODULE,
+                    .ca_name = "cluster_name",
+                    .ca_mode = S_IRUGO | S_IWUSR },
+	.show   = cluster_cluster_name_read,
+	.store  = cluster_cluster_name_write,
+};
+
 static ssize_t cluster_set(struct dlm_cluster *cl, unsigned int *cl_field,
 			   int *info_field, int check_zero,
 			   const char *buf, size_t len)
@@ -171,6 +198,7 @@ CLUSTER_ATTR(protocol, 0);
 CLUSTER_ATTR(timewarn_cs, 1);
 CLUSTER_ATTR(waitwarn_us, 0);
 CLUSTER_ATTR(new_rsb_count, 0);
+CLUSTER_ATTR(recover_callbacks, 0);
 
 static struct configfs_attribute *cluster_attrs[] = {
 	[CLUSTER_ATTR_TCP_PORT] = &cluster_attr_tcp_port.attr,
@@ -185,6 +213,8 @@ static struct configfs_attribute *cluster_attrs[] = {
 	[CLUSTER_ATTR_TIMEWARN_CS] = &cluster_attr_timewarn_cs.attr,
 	[CLUSTER_ATTR_WAITWARN_US] = &cluster_attr_waitwarn_us.attr,
 	[CLUSTER_ATTR_NEW_RSB_COUNT] = &cluster_attr_new_rsb_count.attr,
+	[CLUSTER_ATTR_RECOVER_CALLBACKS] = &cluster_attr_recover_callbacks.attr,
+	[CLUSTER_ATTR_CLUSTER_NAME] = &cluster_attr_cluster_name.attr,
 	NULL,
 };
 
@@ -293,6 +323,7 @@ struct dlm_comms {
 
 struct dlm_comm {
 	struct config_item item;
+	int seq;
 	int nodeid;
 	int local;
 	int addr_count;
@@ -309,6 +340,7 @@ struct dlm_node {
 	int nodeid;
 	int weight;
 	int new;
+	int comm_seq; /* copy of cm->seq when nd->nodeid is set */
 };
 
 static struct configfs_group_operations clusters_ops = {
@@ -455,6 +487,9 @@ static struct config_group *make_cluster(struct config_group *g,
 	cl->cl_timewarn_cs = dlm_config.ci_timewarn_cs;
 	cl->cl_waitwarn_us = dlm_config.ci_waitwarn_us;
 	cl->cl_new_rsb_count = dlm_config.ci_new_rsb_count;
+	cl->cl_recover_callbacks = dlm_config.ci_recover_callbacks;
+	memcpy(cl->cl_cluster_name, dlm_config.ci_cluster_name,
+	       DLM_LOCKSPACE_LEN);
 
 	space_list = &sps->ss_group;
 	comm_list = &cms->cs_group;
@@ -558,6 +593,11 @@ static struct config_item *make_comm(struct config_group *g, const char *name)
 		return ERR_PTR(-ENOMEM);
 
 	config_item_init_type_name(&cm->item, name, &comm_type);
+
+	cm->seq = dlm_comm_count++;
+	if (!cm->seq)
+		cm->seq = dlm_comm_count++;
+
 	cm->nodeid = -1;
 	cm->local = 0;
 	cm->addr_count = 0;
@@ -801,7 +841,10 @@ static ssize_t node_nodeid_read(struct dlm_node *nd, char *buf)
 static ssize_t node_nodeid_write(struct dlm_node *nd, const char *buf,
 				 size_t len)
 {
+	uint32_t seq = 0;
 	nd->nodeid = simple_strtol(buf, NULL, 0);
+	dlm_comm_seq(nd->nodeid, &seq);
+	nd->comm_seq = seq;
 	return len;
 }
 
@@ -908,13 +951,13 @@ static void put_comm(struct dlm_comm *cm)
 }
 
 /* caller must free mem */
-int dlm_nodeid_list(char *lsname, int **ids_out, int *ids_count_out,
-		    int **new_out, int *new_count_out)
+int dlm_config_nodes(char *lsname, struct dlm_config_node **nodes_out,
+		     int *count_out)
 {
 	struct dlm_space *sp;
 	struct dlm_node *nd;
-	int i = 0, rv = 0, ids_count = 0, new_count = 0;
-	int *ids, *new;
+	struct dlm_config_node *nodes, *node;
+	int rv, count;
 
 	sp = get_space(lsname);
 	if (!sp)
@@ -927,73 +970,42 @@ int dlm_nodeid_list(char *lsname, int **ids_out, int *ids_count_out,
 		goto out;
 	}
 
-	ids_count = sp->members_count;
+	count = sp->members_count;
 
-	ids = kcalloc(ids_count, sizeof(int), GFP_NOFS);
-	if (!ids) {
+	nodes = kcalloc(count, sizeof(struct dlm_config_node), GFP_NOFS);
+	if (!nodes) {
 		rv = -ENOMEM;
 		goto out;
 	}
 
+	node = nodes;
 	list_for_each_entry(nd, &sp->members, list) {
-		ids[i++] = nd->nodeid;
-		if (nd->new)
-			new_count++;
-	}
-
-	if (ids_count != i)
-		printk(KERN_ERR "dlm: bad nodeid count %d %d\n", ids_count, i);
-
-	if (!new_count)
-		goto out_ids;
+		node->nodeid = nd->nodeid;
+		node->weight = nd->weight;
+		node->new = nd->new;
+		node->comm_seq = nd->comm_seq;
+		node++;
 
-	new = kcalloc(new_count, sizeof(int), GFP_NOFS);
-	if (!new) {
-		kfree(ids);
-		rv = -ENOMEM;
-		goto out;
+		nd->new = 0;
 	}
 
-	i = 0;
-	list_for_each_entry(nd, &sp->members, list) {
-		if (nd->new) {
-			new[i++] = nd->nodeid;
-			nd->new = 0;
-		}
-	}
-	*new_count_out = new_count;
-	*new_out = new;
-
- out_ids:
-	*ids_count_out = ids_count;
-	*ids_out = ids;
+	*count_out = count;
+	*nodes_out = nodes;
+	rv = 0;
  out:
 	mutex_unlock(&sp->members_lock);
 	put_space(sp);
 	return rv;
 }
 
-int dlm_node_weight(char *lsname, int nodeid)
+int dlm_comm_seq(int nodeid, uint32_t *seq)
 {
-	struct dlm_space *sp;
-	struct dlm_node *nd;
-	int w = -EEXIST;
-
-	sp = get_space(lsname);
-	if (!sp)
-		goto out;
-
-	mutex_lock(&sp->members_lock);
-	list_for_each_entry(nd, &sp->members, list) {
-		if (nd->nodeid != nodeid)
-			continue;
-		w = nd->weight;
-		break;
-	}
-	mutex_unlock(&sp->members_lock);
-	put_space(sp);
- out:
-	return w;
+	struct dlm_comm *cm = get_comm(nodeid, NULL);
+	if (!cm)
+		return -EEXIST;
+	*seq = cm->seq;
+	put_comm(cm);
+	return 0;
 }
 
 int dlm_nodeid_to_addr(int nodeid, struct sockaddr_storage *addr)
@@ -1047,6 +1059,8 @@ int dlm_our_addr(struct sockaddr_storage *addr, int num)
 #define DEFAULT_TIMEWARN_CS      500 /* 5 sec = 500 centiseconds */
 #define DEFAULT_WAITWARN_US	   0
 #define DEFAULT_NEW_RSB_COUNT    128
+#define DEFAULT_RECOVER_CALLBACKS  0
+#define DEFAULT_CLUSTER_NAME      ""
 
 struct dlm_config_info dlm_config = {
 	.ci_tcp_port = DEFAULT_TCP_PORT,
@@ -1060,6 +1074,8 @@ struct dlm_config_info dlm_config = {
 	.ci_protocol = DEFAULT_PROTOCOL,
 	.ci_timewarn_cs = DEFAULT_TIMEWARN_CS,
 	.ci_waitwarn_us = DEFAULT_WAITWARN_US,
-	.ci_new_rsb_count = DEFAULT_NEW_RSB_COUNT
+	.ci_new_rsb_count = DEFAULT_NEW_RSB_COUNT,
+	.ci_recover_callbacks = DEFAULT_RECOVER_CALLBACKS,
+	.ci_cluster_name = DEFAULT_CLUSTER_NAME
 };
 
diff --git a/fs/dlm/config.h b/fs/dlm/config.h
index 3099d0dd26c0..9f5e3663bb0c 100644
--- a/fs/dlm/config.h
+++ b/fs/dlm/config.h
@@ -2,7 +2,7 @@
 *******************************************************************************
 **
 **  Copyright (C) Sistina Software, Inc.  1997-2003  All rights reserved.
-**  Copyright (C) 2004-2007 Red Hat, Inc.  All rights reserved.
+**  Copyright (C) 2004-2011 Red Hat, Inc.  All rights reserved.
 **
 **  This copyrighted material is made available to anyone wishing to use,
 **  modify, copy, or redistribute it subject to the terms and conditions
@@ -14,6 +14,13 @@
 #ifndef __CONFIG_DOT_H__
 #define __CONFIG_DOT_H__
 
+struct dlm_config_node {
+	int nodeid;
+	int weight;
+	int new;
+	uint32_t comm_seq;
+};
+
 #define DLM_MAX_ADDR_COUNT 3
 
 struct dlm_config_info {
@@ -29,15 +36,17 @@ struct dlm_config_info {
 	int ci_timewarn_cs;
 	int ci_waitwarn_us;
 	int ci_new_rsb_count;
+	int ci_recover_callbacks;
+	char ci_cluster_name[DLM_LOCKSPACE_LEN];
 };
 
 extern struct dlm_config_info dlm_config;
 
 int dlm_config_init(void);
 void dlm_config_exit(void);
-int dlm_node_weight(char *lsname, int nodeid);
-int dlm_nodeid_list(char *lsname, int **ids_out, int *ids_count_out,
-		    int **new_out, int *new_count_out);
+int dlm_config_nodes(char *lsname, struct dlm_config_node **nodes_out,
+		     int *count_out);
+int dlm_comm_seq(int nodeid, uint32_t *seq);
 int dlm_nodeid_to_addr(int nodeid, struct sockaddr_storage *addr);
 int dlm_addr_to_nodeid(struct sockaddr_storage *addr, int *nodeid);
 int dlm_our_nodeid(void);
diff --git a/fs/dlm/debug_fs.c b/fs/dlm/debug_fs.c
index 59779237e2b4..3dca2b39e83f 100644
--- a/fs/dlm/debug_fs.c
+++ b/fs/dlm/debug_fs.c
@@ -393,6 +393,7 @@ static const struct seq_operations format3_seq_ops;
 
 static void *table_seq_start(struct seq_file *seq, loff_t *pos)
 {
+	struct rb_node *node;
 	struct dlm_ls *ls = seq->private;
 	struct rsbtbl_iter *ri;
 	struct dlm_rsb *r;
@@ -418,9 +419,10 @@ static void *table_seq_start(struct seq_file *seq, loff_t *pos)
 		ri->format = 3;
 
 	spin_lock(&ls->ls_rsbtbl[bucket].lock);
-	if (!list_empty(&ls->ls_rsbtbl[bucket].list)) {
-		list_for_each_entry(r, &ls->ls_rsbtbl[bucket].list,
-				    res_hashchain) {
+	if (!RB_EMPTY_ROOT(&ls->ls_rsbtbl[bucket].keep)) {
+		for (node = rb_first(&ls->ls_rsbtbl[bucket].keep); node;
+		     node = rb_next(node)) {
+			r = rb_entry(node, struct dlm_rsb, res_hashnode);
 			if (!entry--) {
 				dlm_hold_rsb(r);
 				ri->rsb = r;
@@ -449,9 +451,9 @@ static void *table_seq_start(struct seq_file *seq, loff_t *pos)
 		}
 
 		spin_lock(&ls->ls_rsbtbl[bucket].lock);
-		if (!list_empty(&ls->ls_rsbtbl[bucket].list)) {
-			r = list_first_entry(&ls->ls_rsbtbl[bucket].list,
-					     struct dlm_rsb, res_hashchain);
+		if (!RB_EMPTY_ROOT(&ls->ls_rsbtbl[bucket].keep)) {
+			node = rb_first(&ls->ls_rsbtbl[bucket].keep);
+			r = rb_entry(node, struct dlm_rsb, res_hashnode);
 			dlm_hold_rsb(r);
 			ri->rsb = r;
 			ri->bucket = bucket;
@@ -467,7 +469,7 @@ static void *table_seq_next(struct seq_file *seq, void *iter_ptr, loff_t *pos)
 {
 	struct dlm_ls *ls = seq->private;
 	struct rsbtbl_iter *ri = iter_ptr;
-	struct list_head *next;
+	struct rb_node *next;
 	struct dlm_rsb *r, *rp;
 	loff_t n = *pos;
 	unsigned bucket;
@@ -480,10 +482,10 @@ static void *table_seq_next(struct seq_file *seq, void *iter_ptr, loff_t *pos)
 
 	spin_lock(&ls->ls_rsbtbl[bucket].lock);
 	rp = ri->rsb;
-	next = rp->res_hashchain.next;
+	next = rb_next(&rp->res_hashnode);
 
-	if (next != &ls->ls_rsbtbl[bucket].list) {
-		r = list_entry(next, struct dlm_rsb, res_hashchain);
+	if (next) {
+		r = rb_entry(next, struct dlm_rsb, res_hashnode);
 		dlm_hold_rsb(r);
 		ri->rsb = r;
 		spin_unlock(&ls->ls_rsbtbl[bucket].lock);
@@ -511,9 +513,9 @@ static void *table_seq_next(struct seq_file *seq, void *iter_ptr, loff_t *pos)
 		}
 
 		spin_lock(&ls->ls_rsbtbl[bucket].lock);
-		if (!list_empty(&ls->ls_rsbtbl[bucket].list)) {
-			r = list_first_entry(&ls->ls_rsbtbl[bucket].list,
-					     struct dlm_rsb, res_hashchain);
+		if (!RB_EMPTY_ROOT(&ls->ls_rsbtbl[bucket].keep)) {
+			next = rb_first(&ls->ls_rsbtbl[bucket].keep);
+			r = rb_entry(next, struct dlm_rsb, res_hashnode);
 			dlm_hold_rsb(r);
 			ri->rsb = r;
 			ri->bucket = bucket;
diff --git a/fs/dlm/dir.c b/fs/dlm/dir.c
index 7b84c1dbc82e..83641574b016 100644
--- a/fs/dlm/dir.c
+++ b/fs/dlm/dir.c
@@ -290,7 +290,6 @@ int dlm_recover_directory(struct dlm_ls *ls)
 
  out_status:
 	error = 0;
-	dlm_set_recover_status(ls, DLM_RS_DIR);
 	log_debug(ls, "dlm_recover_directory %d entries", count);
  out_free:
 	kfree(last_name);
diff --git a/fs/dlm/dlm_internal.h b/fs/dlm/dlm_internal.h
index fe2860c02449..3a564d197e99 100644
--- a/fs/dlm/dlm_internal.h
+++ b/fs/dlm/dlm_internal.h
@@ -2,7 +2,7 @@
 *******************************************************************************
 **
 **  Copyright (C) Sistina Software, Inc.  1997-2003  All rights reserved.
-**  Copyright (C) 2004-2010 Red Hat, Inc.  All rights reserved.
+**  Copyright (C) 2004-2011 Red Hat, Inc.  All rights reserved.
 **
 **  This copyrighted material is made available to anyone wishing to use,
 **  modify, copy, or redistribute it subject to the terms and conditions
@@ -103,8 +103,8 @@ struct dlm_dirtable {
 };
 
 struct dlm_rsbtable {
-	struct list_head	list;
-	struct list_head	toss;
+	struct rb_root		keep;
+	struct rb_root		toss;
 	spinlock_t		lock;
 };
 
@@ -117,6 +117,10 @@ struct dlm_member {
 	struct list_head	list;
 	int			nodeid;
 	int			weight;
+	int			slot;
+	int			slot_prev;
+	int			comm_seq;
+	uint32_t		generation;
 };
 
 /*
@@ -125,10 +129,8 @@ struct dlm_member {
 
 struct dlm_recover {
 	struct list_head	list;
-	int			*nodeids;   /* nodeids of all members */
-	int			node_count;
-	int			*new;       /* nodeids of new members */
-	int			new_count;
+	struct dlm_config_node	*nodes;
+	int			nodes_count;
 	uint64_t		seq;
 };
 
@@ -285,7 +287,10 @@ struct dlm_rsb {
 	unsigned long		res_toss_time;
 	uint32_t		res_first_lkid;
 	struct list_head	res_lookup;	/* lkbs waiting on first */
-	struct list_head	res_hashchain;	/* rsbtbl */
+	union {
+		struct list_head	res_hashchain;
+		struct rb_node		res_hashnode;	/* rsbtbl */
+	};
 	struct list_head	res_grantqueue;
 	struct list_head	res_convertqueue;
 	struct list_head	res_waitqueue;
@@ -334,7 +339,9 @@ static inline int rsb_flag(struct dlm_rsb *r, enum rsb_flags flag)
 /* dlm_header is first element of all structs sent between nodes */
 
 #define DLM_HEADER_MAJOR	0x00030000
-#define DLM_HEADER_MINOR	0x00000000
+#define DLM_HEADER_MINOR	0x00000001
+
+#define DLM_HEADER_SLOTS	0x00000001
 
 #define DLM_MSG			1
 #define DLM_RCOM		2
@@ -422,10 +429,34 @@ union dlm_packet {
 	struct dlm_rcom		rcom;
 };
 
+#define DLM_RSF_NEED_SLOTS	0x00000001
+
+/* RCOM_STATUS data */
+struct rcom_status {
+	__le32			rs_flags;
+	__le32			rs_unused1;
+	__le64			rs_unused2;
+};
+
+/* RCOM_STATUS_REPLY data */
 struct rcom_config {
 	__le32			rf_lvblen;
 	__le32			rf_lsflags;
-	__le64			rf_unused;
+
+	/* DLM_HEADER_SLOTS adds: */
+	__le32			rf_flags;
+	__le16			rf_our_slot;
+	__le16			rf_num_slots;
+	__le32			rf_generation;
+	__le32			rf_unused1;
+	__le64			rf_unused2;
+};
+
+struct rcom_slot {
+	__le32			ro_nodeid;
+	__le16			ro_slot;
+	__le16			ro_unused1;
+	__le64			ro_unused2;
 };
 
 struct rcom_lock {
@@ -452,6 +483,7 @@ struct dlm_ls {
 	struct list_head	ls_list;	/* list of lockspaces */
 	dlm_lockspace_t		*ls_local_handle;
 	uint32_t		ls_global_id;	/* global unique lockspace ID */
+	uint32_t		ls_generation;
 	uint32_t		ls_exflags;
 	int			ls_lvblen;
 	int			ls_count;	/* refcount of processes in
@@ -490,6 +522,11 @@ struct dlm_ls {
 	int			ls_total_weight;
 	int			*ls_node_array;
 
+	int			ls_slot;
+	int			ls_num_slots;
+	int			ls_slots_size;
+	struct dlm_slot		*ls_slots;
+
 	struct dlm_rsb		ls_stub_rsb;	/* for returning errors */
 	struct dlm_lkb		ls_stub_lkb;	/* for returning errors */
 	struct dlm_message	ls_stub_ms;	/* for faking a reply */
@@ -537,6 +574,9 @@ struct dlm_ls {
 	struct list_head	ls_root_list;	/* root resources */
 	struct rw_semaphore	ls_root_sem;	/* protect root_list */
 
+	const struct dlm_lockspace_ops *ls_ops;
+	void			*ls_ops_arg;
+
 	int			ls_namelen;
 	char			ls_name[1];
 };
diff --git a/fs/dlm/lock.c b/fs/dlm/lock.c
index 83b5e32514e1..d47183043c59 100644
--- a/fs/dlm/lock.c
+++ b/fs/dlm/lock.c
@@ -56,6 +56,7 @@
    L: receive_xxxx_reply()     <-  R: send_xxxx_reply()
 */
 #include <linux/types.h>
+#include <linux/rbtree.h>
 #include <linux/slab.h>
 #include "dlm_internal.h"
 #include <linux/dlm_device.h>
@@ -380,6 +381,8 @@ static int get_rsb_struct(struct dlm_ls *ls, char *name, int len,
 
 	r = list_first_entry(&ls->ls_new_rsb, struct dlm_rsb, res_hashchain);
 	list_del(&r->res_hashchain);
+	/* Convert the empty list_head to a NULL rb_node for tree usage: */
+	memset(&r->res_hashnode, 0, sizeof(struct rb_node));
 	ls->ls_new_rsb_count--;
 	spin_unlock(&ls->ls_new_rsb_spin);
 
@@ -388,7 +391,6 @@ static int get_rsb_struct(struct dlm_ls *ls, char *name, int len,
 	memcpy(r->res_name, name, len);
 	mutex_init(&r->res_mutex);
 
-	INIT_LIST_HEAD(&r->res_hashchain);
 	INIT_LIST_HEAD(&r->res_lookup);
 	INIT_LIST_HEAD(&r->res_grantqueue);
 	INIT_LIST_HEAD(&r->res_convertqueue);
@@ -400,14 +402,31 @@ static int get_rsb_struct(struct dlm_ls *ls, char *name, int len,
 	return 0;
 }
 
-static int search_rsb_list(struct list_head *head, char *name, int len,
+static int rsb_cmp(struct dlm_rsb *r, const char *name, int nlen)
+{
+	char maxname[DLM_RESNAME_MAXLEN];
+
+	memset(maxname, 0, DLM_RESNAME_MAXLEN);
+	memcpy(maxname, name, nlen);
+	return memcmp(r->res_name, maxname, DLM_RESNAME_MAXLEN);
+}
+
+static int search_rsb_tree(struct rb_root *tree, char *name, int len,
 			   unsigned int flags, struct dlm_rsb **r_ret)
 {
+	struct rb_node *node = tree->rb_node;
 	struct dlm_rsb *r;
 	int error = 0;
-
-	list_for_each_entry(r, head, res_hashchain) {
-		if (len == r->res_length && !memcmp(name, r->res_name, len))
+	int rc;
+
+	while (node) {
+		r = rb_entry(node, struct dlm_rsb, res_hashnode);
+		rc = rsb_cmp(r, name, len);
+		if (rc < 0)
+			node = node->rb_left;
+		else if (rc > 0)
+			node = node->rb_right;
+		else
 			goto found;
 	}
 	*r_ret = NULL;
@@ -420,22 +439,54 @@ static int search_rsb_list(struct list_head *head, char *name, int len,
 	return error;
 }
 
+static int rsb_insert(struct dlm_rsb *rsb, struct rb_root *tree)
+{
+	struct rb_node **newn = &tree->rb_node;
+	struct rb_node *parent = NULL;
+	int rc;
+
+	while (*newn) {
+		struct dlm_rsb *cur = rb_entry(*newn, struct dlm_rsb,
+					       res_hashnode);
+
+		parent = *newn;
+		rc = rsb_cmp(cur, rsb->res_name, rsb->res_length);
+		if (rc < 0)
+			newn = &parent->rb_left;
+		else if (rc > 0)
+			newn = &parent->rb_right;
+		else {
+			log_print("rsb_insert match");
+			dlm_dump_rsb(rsb);
+			dlm_dump_rsb(cur);
+			return -EEXIST;
+		}
+	}
+
+	rb_link_node(&rsb->res_hashnode, parent, newn);
+	rb_insert_color(&rsb->res_hashnode, tree);
+	return 0;
+}
+
 static int _search_rsb(struct dlm_ls *ls, char *name, int len, int b,
 		       unsigned int flags, struct dlm_rsb **r_ret)
 {
 	struct dlm_rsb *r;
 	int error;
 
-	error = search_rsb_list(&ls->ls_rsbtbl[b].list, name, len, flags, &r);
+	error = search_rsb_tree(&ls->ls_rsbtbl[b].keep, name, len, flags, &r);
 	if (!error) {
 		kref_get(&r->res_ref);
 		goto out;
 	}
-	error = search_rsb_list(&ls->ls_rsbtbl[b].toss, name, len, flags, &r);
+	error = search_rsb_tree(&ls->ls_rsbtbl[b].toss, name, len, flags, &r);
 	if (error)
 		goto out;
 
-	list_move(&r->res_hashchain, &ls->ls_rsbtbl[b].list);
+	rb_erase(&r->res_hashnode, &ls->ls_rsbtbl[b].toss);
+	error = rsb_insert(r, &ls->ls_rsbtbl[b].keep);
+	if (error)
+		return error;
 
 	if (dlm_no_directory(ls))
 		goto out;
@@ -527,8 +578,7 @@ static int find_rsb(struct dlm_ls *ls, char *name, int namelen,
 			nodeid = 0;
 		r->res_nodeid = nodeid;
 	}
-	list_add(&r->res_hashchain, &ls->ls_rsbtbl[bucket].list);
-	error = 0;
+	error = rsb_insert(r, &ls->ls_rsbtbl[bucket].keep);
  out_unlock:
 	spin_unlock(&ls->ls_rsbtbl[bucket].lock);
  out:
@@ -556,7 +606,8 @@ static void toss_rsb(struct kref *kref)
 
 	DLM_ASSERT(list_empty(&r->res_root_list), dlm_print_rsb(r););
 	kref_init(&r->res_ref);
-	list_move(&r->res_hashchain, &ls->ls_rsbtbl[r->res_bucket].toss);
+	rb_erase(&r->res_hashnode, &ls->ls_rsbtbl[r->res_bucket].keep);
+	rsb_insert(r, &ls->ls_rsbtbl[r->res_bucket].toss);
 	r->res_toss_time = jiffies;
 	if (r->res_lvbptr) {
 		dlm_free_lvb(r->res_lvbptr);
@@ -1082,19 +1133,19 @@ static void dir_remove(struct dlm_rsb *r)
 				     r->res_name, r->res_length);
 }
 
-/* FIXME: shouldn't this be able to exit as soon as one non-due rsb is
-   found since they are in order of newest to oldest? */
+/* FIXME: make this more efficient */
 
 static int shrink_bucket(struct dlm_ls *ls, int b)
 {
+	struct rb_node *n;
 	struct dlm_rsb *r;
 	int count = 0, found;
 
 	for (;;) {
 		found = 0;
 		spin_lock(&ls->ls_rsbtbl[b].lock);
-		list_for_each_entry_reverse(r, &ls->ls_rsbtbl[b].toss,
-					    res_hashchain) {
+		for (n = rb_first(&ls->ls_rsbtbl[b].toss); n; n = rb_next(n)) {
+			r = rb_entry(n, struct dlm_rsb, res_hashnode);
 			if (!time_after_eq(jiffies, r->res_toss_time +
 					   dlm_config.ci_toss_secs * HZ))
 				continue;
@@ -1108,7 +1159,7 @@ static int shrink_bucket(struct dlm_ls *ls, int b)
 		}
 
 		if (kref_put(&r->res_ref, kill_rsb)) {
-			list_del(&r->res_hashchain);
+			rb_erase(&r->res_hashnode, &ls->ls_rsbtbl[b].toss);
 			spin_unlock(&ls->ls_rsbtbl[b].lock);
 
 			if (is_master(r))
@@ -4441,10 +4492,12 @@ int dlm_purge_locks(struct dlm_ls *ls)
 
 static struct dlm_rsb *find_purged_rsb(struct dlm_ls *ls, int bucket)
 {
+	struct rb_node *n;
 	struct dlm_rsb *r, *r_ret = NULL;
 
 	spin_lock(&ls->ls_rsbtbl[bucket].lock);
-	list_for_each_entry(r, &ls->ls_rsbtbl[bucket].list, res_hashchain) {
+	for (n = rb_first(&ls->ls_rsbtbl[bucket].keep); n; n = rb_next(n)) {
+		r = rb_entry(n, struct dlm_rsb, res_hashnode);
 		if (!rsb_flag(r, RSB_LOCKS_PURGED))
 			continue;
 		hold_rsb(r);
diff --git a/fs/dlm/lockspace.c b/fs/dlm/lockspace.c
index a1d8f1af144b..a1ea25face82 100644
--- a/fs/dlm/lockspace.c
+++ b/fs/dlm/lockspace.c
@@ -2,7 +2,7 @@
 *******************************************************************************
 **
 **  Copyright (C) Sistina Software, Inc.  1997-2003  All rights reserved.
-**  Copyright (C) 2004-2008 Red Hat, Inc.  All rights reserved.
+**  Copyright (C) 2004-2011 Red Hat, Inc.  All rights reserved.
 **
 **  This copyrighted material is made available to anyone wishing to use,
 **  modify, copy, or redistribute it subject to the terms and conditions
@@ -386,12 +386,15 @@ static void threads_stop(void)
 	dlm_lowcomms_stop();
 }
 
-static int new_lockspace(const char *name, int namelen, void **lockspace,
-			 uint32_t flags, int lvblen)
+static int new_lockspace(const char *name, const char *cluster,
+			 uint32_t flags, int lvblen,
+			 const struct dlm_lockspace_ops *ops, void *ops_arg,
+			 int *ops_result, dlm_lockspace_t **lockspace)
 {
 	struct dlm_ls *ls;
 	int i, size, error;
 	int do_unreg = 0;
+	int namelen = strlen(name);
 
 	if (namelen > DLM_LOCKSPACE_LEN)
 		return -EINVAL;
@@ -403,8 +406,24 @@ static int new_lockspace(const char *name, int namelen, void **lockspace,
 		return -EINVAL;
 
 	if (!dlm_user_daemon_available()) {
-		module_put(THIS_MODULE);
-		return -EUNATCH;
+		log_print("dlm user daemon not available");
+		error = -EUNATCH;
+		goto out;
+	}
+
+	if (ops && ops_result) {
+	       	if (!dlm_config.ci_recover_callbacks)
+			*ops_result = -EOPNOTSUPP;
+		else
+			*ops_result = 0;
+	}
+
+	if (dlm_config.ci_recover_callbacks && cluster &&
+	    strncmp(cluster, dlm_config.ci_cluster_name, DLM_LOCKSPACE_LEN)) {
+		log_print("dlm cluster name %s mismatch %s",
+			  dlm_config.ci_cluster_name, cluster);
+		error = -EBADR;
+		goto out;
 	}
 
 	error = 0;
@@ -442,6 +461,11 @@ static int new_lockspace(const char *name, int namelen, void **lockspace,
 	ls->ls_flags = 0;
 	ls->ls_scan_time = jiffies;
 
+	if (ops && dlm_config.ci_recover_callbacks) {
+		ls->ls_ops = ops;
+		ls->ls_ops_arg = ops_arg;
+	}
+
 	if (flags & DLM_LSFL_TIMEWARN)
 		set_bit(LSFL_TIMEWARN, &ls->ls_flags);
 
@@ -457,8 +481,8 @@ static int new_lockspace(const char *name, int namelen, void **lockspace,
 	if (!ls->ls_rsbtbl)
 		goto out_lsfree;
 	for (i = 0; i < size; i++) {
-		INIT_LIST_HEAD(&ls->ls_rsbtbl[i].list);
-		INIT_LIST_HEAD(&ls->ls_rsbtbl[i].toss);
+		ls->ls_rsbtbl[i].keep.rb_node = NULL;
+		ls->ls_rsbtbl[i].toss.rb_node = NULL;
 		spin_lock_init(&ls->ls_rsbtbl[i].lock);
 	}
 
@@ -525,6 +549,11 @@ static int new_lockspace(const char *name, int namelen, void **lockspace,
 	if (!ls->ls_recover_buf)
 		goto out_dirfree;
 
+	ls->ls_slot = 0;
+	ls->ls_num_slots = 0;
+	ls->ls_slots_size = 0;
+	ls->ls_slots = NULL;
+
 	INIT_LIST_HEAD(&ls->ls_recover_list);
 	spin_lock_init(&ls->ls_recover_list_lock);
 	ls->ls_recover_list_count = 0;
@@ -614,8 +643,10 @@ static int new_lockspace(const char *name, int namelen, void **lockspace,
 	return error;
 }
 
-int dlm_new_lockspace(const char *name, int namelen, void **lockspace,
-		      uint32_t flags, int lvblen)
+int dlm_new_lockspace(const char *name, const char *cluster,
+		      uint32_t flags, int lvblen,
+		      const struct dlm_lockspace_ops *ops, void *ops_arg,
+		      int *ops_result, dlm_lockspace_t **lockspace)
 {
 	int error = 0;
 
@@ -625,7 +656,8 @@ int dlm_new_lockspace(const char *name, int namelen, void **lockspace,
 	if (error)
 		goto out;
 
-	error = new_lockspace(name, namelen, lockspace, flags, lvblen);
+	error = new_lockspace(name, cluster, flags, lvblen, ops, ops_arg,
+			      ops_result, lockspace);
 	if (!error)
 		ls_count++;
 	if (error > 0)
@@ -685,7 +717,7 @@ static int lockspace_busy(struct dlm_ls *ls, int force)
 static int release_lockspace(struct dlm_ls *ls, int force)
 {
 	struct dlm_rsb *rsb;
-	struct list_head *head;
+	struct rb_node *n;
 	int i, busy, rv;
 
 	busy = lockspace_busy(ls, force);
@@ -746,20 +778,15 @@ static int release_lockspace(struct dlm_ls *ls, int force)
 	 */
 
 	for (i = 0; i < ls->ls_rsbtbl_size; i++) {
-		head = &ls->ls_rsbtbl[i].list;
-		while (!list_empty(head)) {
-			rsb = list_entry(head->next, struct dlm_rsb,
-					 res_hashchain);
-
-			list_del(&rsb->res_hashchain);
+		while ((n = rb_first(&ls->ls_rsbtbl[i].keep))) {
+			rsb = rb_entry(n, struct dlm_rsb, res_hashnode);
+			rb_erase(n, &ls->ls_rsbtbl[i].keep);
 			dlm_free_rsb(rsb);
 		}
 
-		head = &ls->ls_rsbtbl[i].toss;
-		while (!list_empty(head)) {
-			rsb = list_entry(head->next, struct dlm_rsb,
-					 res_hashchain);
-			list_del(&rsb->res_hashchain);
+		while ((n = rb_first(&ls->ls_rsbtbl[i].toss))) {
+			rsb = rb_entry(n, struct dlm_rsb, res_hashnode);
+			rb_erase(n, &ls->ls_rsbtbl[i].toss);
 			dlm_free_rsb(rsb);
 		}
 	}
diff --git a/fs/dlm/member.c b/fs/dlm/member.c
index b12532e553f8..862640a36d5c 100644
--- a/fs/dlm/member.c
+++ b/fs/dlm/member.c
@@ -1,7 +1,7 @@
 /******************************************************************************
 *******************************************************************************
 **
-**  Copyright (C) 2005-2009 Red Hat, Inc.  All rights reserved.
+**  Copyright (C) 2005-2011 Red Hat, Inc.  All rights reserved.
 **
 **  This copyrighted material is made available to anyone wishing to use,
 **  modify, copy, or redistribute it subject to the terms and conditions
@@ -19,6 +19,280 @@
 #include "config.h"
 #include "lowcomms.h"
 
+int dlm_slots_version(struct dlm_header *h)
+{
+	if ((h->h_version & 0x0000FFFF) < DLM_HEADER_SLOTS)
+		return 0;
+	return 1;
+}
+
+void dlm_slot_save(struct dlm_ls *ls, struct dlm_rcom *rc,
+		   struct dlm_member *memb)
+{
+	struct rcom_config *rf = (struct rcom_config *)rc->rc_buf;
+
+	if (!dlm_slots_version(&rc->rc_header))
+		return;
+
+	memb->slot = le16_to_cpu(rf->rf_our_slot);
+	memb->generation = le32_to_cpu(rf->rf_generation);
+}
+
+void dlm_slots_copy_out(struct dlm_ls *ls, struct dlm_rcom *rc)
+{
+	struct dlm_slot *slot;
+	struct rcom_slot *ro;
+	int i;
+
+	ro = (struct rcom_slot *)(rc->rc_buf + sizeof(struct rcom_config));
+
+	/* ls_slots array is sparse, but not rcom_slots */
+
+	for (i = 0; i < ls->ls_slots_size; i++) {
+		slot = &ls->ls_slots[i];
+		if (!slot->nodeid)
+			continue;
+		ro->ro_nodeid = cpu_to_le32(slot->nodeid);
+		ro->ro_slot = cpu_to_le16(slot->slot);
+		ro++;
+	}
+}
+
+#define SLOT_DEBUG_LINE 128
+
+static void log_debug_slots(struct dlm_ls *ls, uint32_t gen, int num_slots,
+			    struct rcom_slot *ro0, struct dlm_slot *array,
+			    int array_size)
+{
+	char line[SLOT_DEBUG_LINE];
+	int len = SLOT_DEBUG_LINE - 1;
+	int pos = 0;
+	int ret, i;
+
+	if (!dlm_config.ci_log_debug)
+		return;
+
+	memset(line, 0, sizeof(line));
+
+	if (array) {
+		for (i = 0; i < array_size; i++) {
+			if (!array[i].nodeid)
+				continue;
+
+			ret = snprintf(line + pos, len - pos, " %d:%d",
+				       array[i].slot, array[i].nodeid);
+			if (ret >= len - pos)
+				break;
+			pos += ret;
+		}
+	} else if (ro0) {
+		for (i = 0; i < num_slots; i++) {
+			ret = snprintf(line + pos, len - pos, " %d:%d",
+				       ro0[i].ro_slot, ro0[i].ro_nodeid);
+			if (ret >= len - pos)
+				break;
+			pos += ret;
+		}
+	}
+
+	log_debug(ls, "generation %u slots %d%s", gen, num_slots, line);
+}
+
+int dlm_slots_copy_in(struct dlm_ls *ls)
+{
+	struct dlm_member *memb;
+	struct dlm_rcom *rc = ls->ls_recover_buf;
+	struct rcom_config *rf = (struct rcom_config *)rc->rc_buf;
+	struct rcom_slot *ro0, *ro;
+	int our_nodeid = dlm_our_nodeid();
+	int i, num_slots;
+	uint32_t gen;
+
+	if (!dlm_slots_version(&rc->rc_header))
+		return -1;
+
+	gen = le32_to_cpu(rf->rf_generation);
+	if (gen <= ls->ls_generation) {
+		log_error(ls, "dlm_slots_copy_in gen %u old %u",
+			  gen, ls->ls_generation);
+	}
+	ls->ls_generation = gen;
+
+	num_slots = le16_to_cpu(rf->rf_num_slots);
+	if (!num_slots)
+		return -1;
+
+	ro0 = (struct rcom_slot *)(rc->rc_buf + sizeof(struct rcom_config));
+
+	for (i = 0, ro = ro0; i < num_slots; i++, ro++) {
+		ro->ro_nodeid = le32_to_cpu(ro->ro_nodeid);
+		ro->ro_slot = le16_to_cpu(ro->ro_slot);
+	}
+
+	log_debug_slots(ls, gen, num_slots, ro0, NULL, 0);
+
+	list_for_each_entry(memb, &ls->ls_nodes, list) {
+		for (i = 0, ro = ro0; i < num_slots; i++, ro++) {
+			if (ro->ro_nodeid != memb->nodeid)
+				continue;
+			memb->slot = ro->ro_slot;
+			memb->slot_prev = memb->slot;
+			break;
+		}
+
+		if (memb->nodeid == our_nodeid) {
+			if (ls->ls_slot && ls->ls_slot != memb->slot) {
+				log_error(ls, "dlm_slots_copy_in our slot "
+					  "changed %d %d", ls->ls_slot,
+					  memb->slot);
+				return -1;
+			}
+
+			if (!ls->ls_slot)
+				ls->ls_slot = memb->slot;
+		}
+
+		if (!memb->slot) {
+			log_error(ls, "dlm_slots_copy_in nodeid %d no slot",
+				   memb->nodeid);
+			return -1;
+		}
+	}
+
+	return 0;
+}
+
+/* for any nodes that do not support slots, we will not have set memb->slot
+   in wait_status_all(), so memb->slot will remain -1, and we will not
+   assign slots or set ls_num_slots here */
+
+int dlm_slots_assign(struct dlm_ls *ls, int *num_slots, int *slots_size,
+		     struct dlm_slot **slots_out, uint32_t *gen_out)
+{
+	struct dlm_member *memb;
+	struct dlm_slot *array;
+	int our_nodeid = dlm_our_nodeid();
+	int array_size, max_slots, i;
+	int need = 0;
+	int max = 0;
+	int num = 0;
+	uint32_t gen = 0;
+
+	/* our own memb struct will have slot -1 gen 0 */
+
+	list_for_each_entry(memb, &ls->ls_nodes, list) {
+		if (memb->nodeid == our_nodeid) {
+			memb->slot = ls->ls_slot;
+			memb->generation = ls->ls_generation;
+			break;
+		}
+	}
+
+	list_for_each_entry(memb, &ls->ls_nodes, list) {
+		if (memb->generation > gen)
+			gen = memb->generation;
+
+		/* node doesn't support slots */
+
+		if (memb->slot == -1)
+			return -1;
+
+		/* node needs a slot assigned */
+
+		if (!memb->slot)
+			need++;
+
+		/* node has a slot assigned */
+
+		num++;
+
+		if (!max || max < memb->slot)
+			max = memb->slot;
+
+		/* sanity check, once slot is assigned it shouldn't change */
+
+		if (memb->slot_prev && memb->slot && memb->slot_prev != memb->slot) {
+			log_error(ls, "nodeid %d slot changed %d %d",
+				  memb->nodeid, memb->slot_prev, memb->slot);
+			return -1;
+		}
+		memb->slot_prev = memb->slot;
+	}
+
+	array_size = max + need;
+
+	array = kzalloc(array_size * sizeof(struct dlm_slot), GFP_NOFS);
+	if (!array)
+		return -ENOMEM;
+
+	num = 0;
+
+	/* fill in slots (offsets) that are used */
+
+	list_for_each_entry(memb, &ls->ls_nodes, list) {
+		if (!memb->slot)
+			continue;
+
+		if (memb->slot > array_size) {
+			log_error(ls, "invalid slot number %d", memb->slot);
+			kfree(array);
+			return -1;
+		}
+
+		array[memb->slot - 1].nodeid = memb->nodeid;
+		array[memb->slot - 1].slot = memb->slot;
+		num++;
+	}
+
+	/* assign new slots from unused offsets */
+
+	list_for_each_entry(memb, &ls->ls_nodes, list) {
+		if (memb->slot)
+			continue;
+
+		for (i = 0; i < array_size; i++) {
+			if (array[i].nodeid)
+				continue;
+
+			memb->slot = i + 1;
+			memb->slot_prev = memb->slot;
+			array[i].nodeid = memb->nodeid;
+			array[i].slot = memb->slot;
+			num++;
+
+			if (!ls->ls_slot && memb->nodeid == our_nodeid)
+				ls->ls_slot = memb->slot;
+			break;
+		}
+
+		if (!memb->slot) {
+			log_error(ls, "no free slot found");
+			kfree(array);
+			return -1;
+		}
+	}
+
+	gen++;
+
+	log_debug_slots(ls, gen, num, NULL, array, array_size);
+
+	max_slots = (dlm_config.ci_buffer_size - sizeof(struct dlm_rcom) -
+		     sizeof(struct rcom_config)) / sizeof(struct rcom_slot);
+
+	if (num > max_slots) {
+		log_error(ls, "num_slots %d exceeds max_slots %d",
+			  num, max_slots);
+		kfree(array);
+		return -1;
+	}
+
+	*gen_out = gen;
+	*slots_out = array;
+	*slots_size = array_size;
+	*num_slots = num;
+	return 0;
+}
+
 static void add_ordered_member(struct dlm_ls *ls, struct dlm_member *new)
 {
 	struct dlm_member *memb = NULL;
@@ -43,59 +317,51 @@ static void add_ordered_member(struct dlm_ls *ls, struct dlm_member *new)
 	}
 }
 
-static int dlm_add_member(struct dlm_ls *ls, int nodeid)
+static int dlm_add_member(struct dlm_ls *ls, struct dlm_config_node *node)
 {
 	struct dlm_member *memb;
-	int w, error;
+	int error;
 
 	memb = kzalloc(sizeof(struct dlm_member), GFP_NOFS);
 	if (!memb)
 		return -ENOMEM;
 
-	w = dlm_node_weight(ls->ls_name, nodeid);
-	if (w < 0) {
-		kfree(memb);
-		return w;
-	}
-
-	error = dlm_lowcomms_connect_node(nodeid);
+	error = dlm_lowcomms_connect_node(node->nodeid);
 	if (error < 0) {
 		kfree(memb);
 		return error;
 	}
 
-	memb->nodeid = nodeid;
-	memb->weight = w;
+	memb->nodeid = node->nodeid;
+	memb->weight = node->weight;
+	memb->comm_seq = node->comm_seq;
 	add_ordered_member(ls, memb);
 	ls->ls_num_nodes++;
 	return 0;
 }
 
-static void dlm_remove_member(struct dlm_ls *ls, struct dlm_member *memb)
-{
-	list_move(&memb->list, &ls->ls_nodes_gone);
-	ls->ls_num_nodes--;
-}
-
-int dlm_is_member(struct dlm_ls *ls, int nodeid)
+static struct dlm_member *find_memb(struct list_head *head, int nodeid)
 {
 	struct dlm_member *memb;
 
-	list_for_each_entry(memb, &ls->ls_nodes, list) {
+	list_for_each_entry(memb, head, list) {
 		if (memb->nodeid == nodeid)
-			return 1;
+			return memb;
 	}
+	return NULL;
+}
+
+int dlm_is_member(struct dlm_ls *ls, int nodeid)
+{
+	if (find_memb(&ls->ls_nodes, nodeid))
+		return 1;
 	return 0;
 }
 
 int dlm_is_removed(struct dlm_ls *ls, int nodeid)
 {
-	struct dlm_member *memb;
-
-	list_for_each_entry(memb, &ls->ls_nodes_gone, list) {
-		if (memb->nodeid == nodeid)
-			return 1;
-	}
+	if (find_memb(&ls->ls_nodes_gone, nodeid))
+		return 1;
 	return 0;
 }
 
@@ -176,7 +442,7 @@ static int ping_members(struct dlm_ls *ls)
 		error = dlm_recovery_stopped(ls);
 		if (error)
 			break;
-		error = dlm_rcom_status(ls, memb->nodeid);
+		error = dlm_rcom_status(ls, memb->nodeid, 0);
 		if (error)
 			break;
 	}
@@ -186,10 +452,88 @@ static int ping_members(struct dlm_ls *ls)
 	return error;
 }
 
+static void dlm_lsop_recover_prep(struct dlm_ls *ls)
+{
+	if (!ls->ls_ops || !ls->ls_ops->recover_prep)
+		return;
+	ls->ls_ops->recover_prep(ls->ls_ops_arg);
+}
+
+static void dlm_lsop_recover_slot(struct dlm_ls *ls, struct dlm_member *memb)
+{
+	struct dlm_slot slot;
+	uint32_t seq;
+	int error;
+
+	if (!ls->ls_ops || !ls->ls_ops->recover_slot)
+		return;
+
+	/* if there is no comms connection with this node
+	   or the present comms connection is newer
+	   than the one when this member was added, then
+	   we consider the node to have failed (versus
+	   being removed due to dlm_release_lockspace) */
+
+	error = dlm_comm_seq(memb->nodeid, &seq);
+
+	if (!error && seq == memb->comm_seq)
+		return;
+
+	slot.nodeid = memb->nodeid;
+	slot.slot = memb->slot;
+
+	ls->ls_ops->recover_slot(ls->ls_ops_arg, &slot);
+}
+
+void dlm_lsop_recover_done(struct dlm_ls *ls)
+{
+	struct dlm_member *memb;
+	struct dlm_slot *slots;
+	int i, num;
+
+	if (!ls->ls_ops || !ls->ls_ops->recover_done)
+		return;
+
+	num = ls->ls_num_nodes;
+
+	slots = kzalloc(num * sizeof(struct dlm_slot), GFP_KERNEL);
+	if (!slots)
+		return;
+
+	i = 0;
+	list_for_each_entry(memb, &ls->ls_nodes, list) {
+		if (i == num) {
+			log_error(ls, "dlm_lsop_recover_done bad num %d", num);
+			goto out;
+		}
+		slots[i].nodeid = memb->nodeid;
+		slots[i].slot = memb->slot;
+		i++;
+	}
+
+	ls->ls_ops->recover_done(ls->ls_ops_arg, slots, num,
+				 ls->ls_slot, ls->ls_generation);
+ out:
+	kfree(slots);
+}
+
+static struct dlm_config_node *find_config_node(struct dlm_recover *rv,
+						int nodeid)
+{
+	int i;
+
+	for (i = 0; i < rv->nodes_count; i++) {
+		if (rv->nodes[i].nodeid == nodeid)
+			return &rv->nodes[i];
+	}
+	return NULL;
+}
+
 int dlm_recover_members(struct dlm_ls *ls, struct dlm_recover *rv, int *neg_out)
 {
 	struct dlm_member *memb, *safe;
-	int i, error, found, pos = 0, neg = 0, low = -1;
+	struct dlm_config_node *node;
+	int i, error, neg = 0, low = -1;
 
 	/* previously removed members that we've not finished removing need to
 	   count as a negative change so the "neg" recovery steps will happen */
@@ -202,46 +546,32 @@ int dlm_recover_members(struct dlm_ls *ls, struct dlm_recover *rv, int *neg_out)
 	/* move departed members from ls_nodes to ls_nodes_gone */
 
 	list_for_each_entry_safe(memb, safe, &ls->ls_nodes, list) {
-		found = 0;
-		for (i = 0; i < rv->node_count; i++) {
-			if (memb->nodeid == rv->nodeids[i]) {
-				found = 1;
-				break;
-			}
-		}
+		node = find_config_node(rv, memb->nodeid);
+		if (node && !node->new)
+			continue;
 
-		if (!found) {
-			neg++;
-			dlm_remove_member(ls, memb);
+		if (!node) {
 			log_debug(ls, "remove member %d", memb->nodeid);
+		} else {
+			/* removed and re-added */
+			log_debug(ls, "remove member %d comm_seq %u %u",
+				  memb->nodeid, memb->comm_seq, node->comm_seq);
 		}
-	}
-
-	/* Add an entry to ls_nodes_gone for members that were removed and
-	   then added again, so that previous state for these nodes will be
-	   cleared during recovery. */
-
-	for (i = 0; i < rv->new_count; i++) {
-		if (!dlm_is_member(ls, rv->new[i]))
-			continue;
-		log_debug(ls, "new nodeid %d is a re-added member", rv->new[i]);
 
-		memb = kzalloc(sizeof(struct dlm_member), GFP_NOFS);
-		if (!memb)
-			return -ENOMEM;
-		memb->nodeid = rv->new[i];
-		list_add_tail(&memb->list, &ls->ls_nodes_gone);
 		neg++;
+		list_move(&memb->list, &ls->ls_nodes_gone);
+		ls->ls_num_nodes--;
+		dlm_lsop_recover_slot(ls, memb);
 	}
 
 	/* add new members to ls_nodes */
 
-	for (i = 0; i < rv->node_count; i++) {
-		if (dlm_is_member(ls, rv->nodeids[i]))
+	for (i = 0; i < rv->nodes_count; i++) {
+		node = &rv->nodes[i];
+		if (dlm_is_member(ls, node->nodeid))
 			continue;
-		dlm_add_member(ls, rv->nodeids[i]);
-		pos++;
-		log_debug(ls, "add member %d", rv->nodeids[i]);
+		dlm_add_member(ls, node);
+		log_debug(ls, "add member %d", node->nodeid);
 	}
 
 	list_for_each_entry(memb, &ls->ls_nodes, list) {
@@ -251,7 +581,6 @@ int dlm_recover_members(struct dlm_ls *ls, struct dlm_recover *rv, int *neg_out)
 	ls->ls_low_nodeid = low;
 
 	make_member_array(ls);
-	dlm_set_recover_status(ls, DLM_RS_NODES);
 	*neg_out = neg;
 
 	error = ping_members(ls);
@@ -261,12 +590,8 @@ int dlm_recover_members(struct dlm_ls *ls, struct dlm_recover *rv, int *neg_out)
 		ls->ls_members_result = error;
 		complete(&ls->ls_members_done);
 	}
-	if (error)
-		goto out;
 
-	error = dlm_recover_members_wait(ls);
- out:
-	log_debug(ls, "total members %d error %d", ls->ls_num_nodes, error);
+	log_debug(ls, "dlm_recover_members %d nodes", ls->ls_num_nodes);
 	return error;
 }
 
@@ -327,26 +652,35 @@ int dlm_ls_stop(struct dlm_ls *ls)
 	 */
 
 	dlm_recoverd_suspend(ls);
+
+	spin_lock(&ls->ls_recover_lock);
+	kfree(ls->ls_slots);
+	ls->ls_slots = NULL;
+	ls->ls_num_slots = 0;
+	ls->ls_slots_size = 0;
 	ls->ls_recover_status = 0;
+	spin_unlock(&ls->ls_recover_lock);
+
 	dlm_recoverd_resume(ls);
 
 	if (!ls->ls_recover_begin)
 		ls->ls_recover_begin = jiffies;
+
+	dlm_lsop_recover_prep(ls);
 	return 0;
 }
 
 int dlm_ls_start(struct dlm_ls *ls)
 {
 	struct dlm_recover *rv = NULL, *rv_old;
-	int *ids = NULL, *new = NULL;
-	int error, ids_count = 0, new_count = 0;
+	struct dlm_config_node *nodes;
+	int error, count;
 
 	rv = kzalloc(sizeof(struct dlm_recover), GFP_NOFS);
 	if (!rv)
 		return -ENOMEM;
 
-	error = dlm_nodeid_list(ls->ls_name, &ids, &ids_count,
-				&new, &new_count);
+	error = dlm_config_nodes(ls->ls_name, &nodes, &count);
 	if (error < 0)
 		goto fail;
 
@@ -361,10 +695,8 @@ int dlm_ls_start(struct dlm_ls *ls)
 		goto fail;
 	}
 
-	rv->nodeids = ids;
-	rv->node_count = ids_count;
-	rv->new = new;
-	rv->new_count = new_count;
+	rv->nodes = nodes;
+	rv->nodes_count = count;
 	rv->seq = ++ls->ls_recover_seq;
 	rv_old = ls->ls_recover_args;
 	ls->ls_recover_args = rv;
@@ -372,9 +704,8 @@ int dlm_ls_start(struct dlm_ls *ls)
 
 	if (rv_old) {
 		log_error(ls, "unused recovery %llx %d",
-			  (unsigned long long)rv_old->seq, rv_old->node_count);
-		kfree(rv_old->nodeids);
-		kfree(rv_old->new);
+			  (unsigned long long)rv_old->seq, rv_old->nodes_count);
+		kfree(rv_old->nodes);
 		kfree(rv_old);
 	}
 
@@ -383,8 +714,7 @@ int dlm_ls_start(struct dlm_ls *ls)
 
  fail:
 	kfree(rv);
-	kfree(ids);
-	kfree(new);
+	kfree(nodes);
 	return error;
 }
 
diff --git a/fs/dlm/member.h b/fs/dlm/member.h
index 7a26fca1e0b5..3deb70661c69 100644
--- a/fs/dlm/member.h
+++ b/fs/dlm/member.h
@@ -1,7 +1,7 @@
 /******************************************************************************
 *******************************************************************************
 **
-**  Copyright (C) 2005-2008 Red Hat, Inc.  All rights reserved.
+**  Copyright (C) 2005-2011 Red Hat, Inc.  All rights reserved.
 **
 **  This copyrighted material is made available to anyone wishing to use,
 **  modify, copy, or redistribute it subject to the terms and conditions
@@ -20,6 +20,14 @@ void dlm_clear_members_gone(struct dlm_ls *ls);
 int dlm_recover_members(struct dlm_ls *ls, struct dlm_recover *rv,int *neg_out);
 int dlm_is_removed(struct dlm_ls *ls, int nodeid);
 int dlm_is_member(struct dlm_ls *ls, int nodeid);
+int dlm_slots_version(struct dlm_header *h);
+void dlm_slot_save(struct dlm_ls *ls, struct dlm_rcom *rc,
+		   struct dlm_member *memb);
+void dlm_slots_copy_out(struct dlm_ls *ls, struct dlm_rcom *rc);
+int dlm_slots_copy_in(struct dlm_ls *ls);
+int dlm_slots_assign(struct dlm_ls *ls, int *num_slots, int *slots_size,
+		     struct dlm_slot **slots_out, uint32_t *gen_out);
+void dlm_lsop_recover_done(struct dlm_ls *ls);
 
 #endif                          /* __MEMBER_DOT_H__ */
 
diff --git a/fs/dlm/rcom.c b/fs/dlm/rcom.c
index f10a50f24e8f..ac5c616c9696 100644
--- a/fs/dlm/rcom.c
+++ b/fs/dlm/rcom.c
@@ -23,6 +23,7 @@
 #include "memory.h"
 #include "lock.h"
 #include "util.h"
+#include "member.h"
 
 
 static int rcom_response(struct dlm_ls *ls)
@@ -72,20 +73,30 @@ static void send_rcom(struct dlm_ls *ls, struct dlm_mhandle *mh,
 	dlm_lowcomms_commit_buffer(mh);
 }
 
+static void set_rcom_status(struct dlm_ls *ls, struct rcom_status *rs,
+			    uint32_t flags)
+{
+	rs->rs_flags = cpu_to_le32(flags);
+}
+
 /* When replying to a status request, a node also sends back its
    configuration values.  The requesting node then checks that the remote
    node is configured the same way as itself. */
 
-static void make_config(struct dlm_ls *ls, struct rcom_config *rf)
+static void set_rcom_config(struct dlm_ls *ls, struct rcom_config *rf,
+			    uint32_t num_slots)
 {
 	rf->rf_lvblen = cpu_to_le32(ls->ls_lvblen);
 	rf->rf_lsflags = cpu_to_le32(ls->ls_exflags);
+
+	rf->rf_our_slot = cpu_to_le16(ls->ls_slot);
+	rf->rf_num_slots = cpu_to_le16(num_slots);
+	rf->rf_generation =  cpu_to_le32(ls->ls_generation);
 }
 
-static int check_config(struct dlm_ls *ls, struct dlm_rcom *rc, int nodeid)
+static int check_rcom_config(struct dlm_ls *ls, struct dlm_rcom *rc, int nodeid)
 {
 	struct rcom_config *rf = (struct rcom_config *) rc->rc_buf;
-	size_t conf_size = sizeof(struct dlm_rcom) + sizeof(struct rcom_config);
 
 	if ((rc->rc_header.h_version & 0xFFFF0000) != DLM_HEADER_MAJOR) {
 		log_error(ls, "version mismatch: %x nodeid %d: %x",
@@ -94,12 +105,6 @@ static int check_config(struct dlm_ls *ls, struct dlm_rcom *rc, int nodeid)
 		return -EPROTO;
 	}
 
-	if (rc->rc_header.h_length < conf_size) {
-		log_error(ls, "config too short: %d nodeid %d",
-			  rc->rc_header.h_length, nodeid);
-		return -EPROTO;
-	}
-
 	if (le32_to_cpu(rf->rf_lvblen) != ls->ls_lvblen ||
 	    le32_to_cpu(rf->rf_lsflags) != ls->ls_exflags) {
 		log_error(ls, "config mismatch: %d,%x nodeid %d: %d,%x",
@@ -127,7 +132,18 @@ static void disallow_sync_reply(struct dlm_ls *ls)
 	spin_unlock(&ls->ls_rcom_spin);
 }
 
-int dlm_rcom_status(struct dlm_ls *ls, int nodeid)
+/*
+ * low nodeid gathers one slot value at a time from each node.
+ * it sets need_slots=0, and saves rf_our_slot returned from each
+ * rcom_config.
+ *
+ * other nodes gather all slot values at once from the low nodeid.
+ * they set need_slots=1, and ignore the rf_our_slot returned from each
+ * rcom_config.  they use the rf_num_slots returned from the low
+ * node's rcom_config.
+ */
+
+int dlm_rcom_status(struct dlm_ls *ls, int nodeid, uint32_t status_flags)
 {
 	struct dlm_rcom *rc;
 	struct dlm_mhandle *mh;
@@ -141,10 +157,13 @@ int dlm_rcom_status(struct dlm_ls *ls, int nodeid)
 		goto out;
 	}
 
-	error = create_rcom(ls, nodeid, DLM_RCOM_STATUS, 0, &rc, &mh);
+	error = create_rcom(ls, nodeid, DLM_RCOM_STATUS,
+			    sizeof(struct rcom_status), &rc, &mh);
 	if (error)
 		goto out;
 
+	set_rcom_status(ls, (struct rcom_status *)rc->rc_buf, status_flags);
+
 	allow_sync_reply(ls, &rc->rc_id);
 	memset(ls->ls_recover_buf, 0, dlm_config.ci_buffer_size);
 
@@ -161,8 +180,11 @@ int dlm_rcom_status(struct dlm_ls *ls, int nodeid)
 		/* we pretend the remote lockspace exists with 0 status */
 		log_debug(ls, "remote node %d not ready", nodeid);
 		rc->rc_result = 0;
-	} else
-		error = check_config(ls, rc, nodeid);
+		error = 0;
+	} else {
+		error = check_rcom_config(ls, rc, nodeid);
+	}
+
 	/* the caller looks at rc_result for the remote recovery status */
  out:
 	return error;
@@ -172,17 +194,60 @@ static void receive_rcom_status(struct dlm_ls *ls, struct dlm_rcom *rc_in)
 {
 	struct dlm_rcom *rc;
 	struct dlm_mhandle *mh;
-	int error, nodeid = rc_in->rc_header.h_nodeid;
+	struct rcom_status *rs;
+	uint32_t status;
+	int nodeid = rc_in->rc_header.h_nodeid;
+	int len = sizeof(struct rcom_config);
+	int num_slots = 0;
+	int error;
+
+	if (!dlm_slots_version(&rc_in->rc_header)) {
+		status = dlm_recover_status(ls);
+		goto do_create;
+	}
+
+	rs = (struct rcom_status *)rc_in->rc_buf;
 
+	if (!(rs->rs_flags & DLM_RSF_NEED_SLOTS)) {
+		status = dlm_recover_status(ls);
+		goto do_create;
+	}
+
+	spin_lock(&ls->ls_recover_lock);
+	status = ls->ls_recover_status;
+	num_slots = ls->ls_num_slots;
+	spin_unlock(&ls->ls_recover_lock);
+	len += num_slots * sizeof(struct rcom_slot);
+
+ do_create:
 	error = create_rcom(ls, nodeid, DLM_RCOM_STATUS_REPLY,
-			    sizeof(struct rcom_config), &rc, &mh);
+			    len, &rc, &mh);
 	if (error)
 		return;
+
 	rc->rc_id = rc_in->rc_id;
 	rc->rc_seq_reply = rc_in->rc_seq;
-	rc->rc_result = dlm_recover_status(ls);
-	make_config(ls, (struct rcom_config *) rc->rc_buf);
+	rc->rc_result = status;
+
+	set_rcom_config(ls, (struct rcom_config *)rc->rc_buf, num_slots);
+
+	if (!num_slots)
+		goto do_send;
+
+	spin_lock(&ls->ls_recover_lock);
+	if (ls->ls_num_slots != num_slots) {
+		spin_unlock(&ls->ls_recover_lock);
+		log_debug(ls, "receive_rcom_status num_slots %d to %d",
+			  num_slots, ls->ls_num_slots);
+		rc->rc_result = 0;
+		set_rcom_config(ls, (struct rcom_config *)rc->rc_buf, 0);
+		goto do_send;
+	}
+
+	dlm_slots_copy_out(ls, rc);
+	spin_unlock(&ls->ls_recover_lock);
 
+ do_send:
 	send_rcom(ls, mh, rc);
 }
 
diff --git a/fs/dlm/rcom.h b/fs/dlm/rcom.h
index b09abd29ba38..206723ab744d 100644
--- a/fs/dlm/rcom.h
+++ b/fs/dlm/rcom.h
@@ -14,7 +14,7 @@
 #ifndef __RCOM_DOT_H__
 #define __RCOM_DOT_H__
 
-int dlm_rcom_status(struct dlm_ls *ls, int nodeid);
+int dlm_rcom_status(struct dlm_ls *ls, int nodeid, uint32_t status_flags);
 int dlm_rcom_names(struct dlm_ls *ls, int nodeid, char *last_name,int last_len);
 int dlm_send_rcom_lookup(struct dlm_rsb *r, int dir_nodeid);
 int dlm_send_rcom_lock(struct dlm_rsb *r, struct dlm_lkb *lkb);
diff --git a/fs/dlm/recover.c b/fs/dlm/recover.c
index 14638235f7b2..34d5adf1fce7 100644
--- a/fs/dlm/recover.c
+++ b/fs/dlm/recover.c
@@ -85,14 +85,20 @@ uint32_t dlm_recover_status(struct dlm_ls *ls)
 	return status;
 }
 
+static void _set_recover_status(struct dlm_ls *ls, uint32_t status)
+{
+	ls->ls_recover_status |= status;
+}
+
 void dlm_set_recover_status(struct dlm_ls *ls, uint32_t status)
 {
 	spin_lock(&ls->ls_recover_lock);
-	ls->ls_recover_status |= status;
+	_set_recover_status(ls, status);
 	spin_unlock(&ls->ls_recover_lock);
 }
 
-static int wait_status_all(struct dlm_ls *ls, uint32_t wait_status)
+static int wait_status_all(struct dlm_ls *ls, uint32_t wait_status,
+			   int save_slots)
 {
 	struct dlm_rcom *rc = ls->ls_recover_buf;
 	struct dlm_member *memb;
@@ -106,10 +112,13 @@ static int wait_status_all(struct dlm_ls *ls, uint32_t wait_status)
 				goto out;
 			}
 
-			error = dlm_rcom_status(ls, memb->nodeid);
+			error = dlm_rcom_status(ls, memb->nodeid, 0);
 			if (error)
 				goto out;
 
+			if (save_slots)
+				dlm_slot_save(ls, rc, memb);
+
 			if (rc->rc_result & wait_status)
 				break;
 			if (delay < 1000)
@@ -121,7 +130,8 @@ static int wait_status_all(struct dlm_ls *ls, uint32_t wait_status)
 	return error;
 }
 
-static int wait_status_low(struct dlm_ls *ls, uint32_t wait_status)
+static int wait_status_low(struct dlm_ls *ls, uint32_t wait_status,
+			   uint32_t status_flags)
 {
 	struct dlm_rcom *rc = ls->ls_recover_buf;
 	int error = 0, delay = 0, nodeid = ls->ls_low_nodeid;
@@ -132,7 +142,7 @@ static int wait_status_low(struct dlm_ls *ls, uint32_t wait_status)
 			goto out;
 		}
 
-		error = dlm_rcom_status(ls, nodeid);
+		error = dlm_rcom_status(ls, nodeid, status_flags);
 		if (error)
 			break;
 
@@ -152,18 +162,56 @@ static int wait_status(struct dlm_ls *ls, uint32_t status)
 	int error;
 
 	if (ls->ls_low_nodeid == dlm_our_nodeid()) {
-		error = wait_status_all(ls, status);
+		error = wait_status_all(ls, status, 0);
 		if (!error)
 			dlm_set_recover_status(ls, status_all);
 	} else
-		error = wait_status_low(ls, status_all);
+		error = wait_status_low(ls, status_all, 0);
 
 	return error;
 }
 
 int dlm_recover_members_wait(struct dlm_ls *ls)
 {
-	return wait_status(ls, DLM_RS_NODES);
+	struct dlm_member *memb;
+	struct dlm_slot *slots;
+	int num_slots, slots_size;
+	int error, rv;
+	uint32_t gen;
+
+	list_for_each_entry(memb, &ls->ls_nodes, list) {
+		memb->slot = -1;
+		memb->generation = 0;
+	}
+
+	if (ls->ls_low_nodeid == dlm_our_nodeid()) {
+		error = wait_status_all(ls, DLM_RS_NODES, 1);
+		if (error)
+			goto out;
+
+		/* slots array is sparse, slots_size may be > num_slots */
+
+		rv = dlm_slots_assign(ls, &num_slots, &slots_size, &slots, &gen);
+		if (!rv) {
+			spin_lock(&ls->ls_recover_lock);
+			_set_recover_status(ls, DLM_RS_NODES_ALL);
+			ls->ls_num_slots = num_slots;
+			ls->ls_slots_size = slots_size;
+			ls->ls_slots = slots;
+			ls->ls_generation = gen;
+			spin_unlock(&ls->ls_recover_lock);
+		} else {
+			dlm_set_recover_status(ls, DLM_RS_NODES_ALL);
+		}
+	} else {
+		error = wait_status_low(ls, DLM_RS_NODES_ALL, DLM_RSF_NEED_SLOTS);
+		if (error)
+			goto out;
+
+		dlm_slots_copy_in(ls);
+	}
+ out:
+	return error;
 }
 
 int dlm_recover_directory_wait(struct dlm_ls *ls)
@@ -542,8 +590,6 @@ int dlm_recover_locks(struct dlm_ls *ls)
  out:
 	if (error)
 		recover_list_clear(ls);
-	else
-		dlm_set_recover_status(ls, DLM_RS_LOCKS);
 	return error;
 }
 
@@ -715,6 +761,7 @@ void dlm_recover_rsbs(struct dlm_ls *ls)
 
 int dlm_create_root_list(struct dlm_ls *ls)
 {
+	struct rb_node *n;
 	struct dlm_rsb *r;
 	int i, error = 0;
 
@@ -727,7 +774,8 @@ int dlm_create_root_list(struct dlm_ls *ls)
 
 	for (i = 0; i < ls->ls_rsbtbl_size; i++) {
 		spin_lock(&ls->ls_rsbtbl[i].lock);
-		list_for_each_entry(r, &ls->ls_rsbtbl[i].list, res_hashchain) {
+		for (n = rb_first(&ls->ls_rsbtbl[i].keep); n; n = rb_next(n)) {
+			r = rb_entry(n, struct dlm_rsb, res_hashnode);
 			list_add(&r->res_root_list, &ls->ls_root_list);
 			dlm_hold_rsb(r);
 		}
@@ -741,7 +789,8 @@ int dlm_create_root_list(struct dlm_ls *ls)
 			continue;
 		}
 
-		list_for_each_entry(r, &ls->ls_rsbtbl[i].toss, res_hashchain) {
+		for (n = rb_first(&ls->ls_rsbtbl[i].toss); n; n = rb_next(n)) {
+			r = rb_entry(n, struct dlm_rsb, res_hashnode);
 			list_add(&r->res_root_list, &ls->ls_root_list);
 			dlm_hold_rsb(r);
 		}
@@ -771,16 +820,18 @@ void dlm_release_root_list(struct dlm_ls *ls)
 
 void dlm_clear_toss_list(struct dlm_ls *ls)
 {
-	struct dlm_rsb *r, *safe;
+	struct rb_node *n, *next;
+	struct dlm_rsb *rsb;
 	int i;
 
 	for (i = 0; i < ls->ls_rsbtbl_size; i++) {
 		spin_lock(&ls->ls_rsbtbl[i].lock);
-		list_for_each_entry_safe(r, safe, &ls->ls_rsbtbl[i].toss,
-					 res_hashchain) {
-			if (dlm_no_directory(ls) || !is_master(r)) {
-				list_del(&r->res_hashchain);
-				dlm_free_rsb(r);
+		for (n = rb_first(&ls->ls_rsbtbl[i].toss); n; n = next) {
+			next = rb_next(n);;
+			rsb = rb_entry(n, struct dlm_rsb, res_hashnode);
+			if (dlm_no_directory(ls) || !is_master(rsb)) {
+				rb_erase(n, &ls->ls_rsbtbl[i].toss);
+				dlm_free_rsb(rsb);
 			}
 		}
 		spin_unlock(&ls->ls_rsbtbl[i].lock);
diff --git a/fs/dlm/recoverd.c b/fs/dlm/recoverd.c
index 774da3cf92c6..3780caf7ae0c 100644
--- a/fs/dlm/recoverd.c
+++ b/fs/dlm/recoverd.c
@@ -2,7 +2,7 @@
 *******************************************************************************
 **
 **  Copyright (C) Sistina Software, Inc.  1997-2003  All rights reserved.
-**  Copyright (C) 2004-2007 Red Hat, Inc.  All rights reserved.
+**  Copyright (C) 2004-2011 Red Hat, Inc.  All rights reserved.
 **
 **  This copyrighted material is made available to anyone wishing to use,
 **  modify, copy, or redistribute it subject to the terms and conditions
@@ -54,7 +54,7 @@ static int ls_recover(struct dlm_ls *ls, struct dlm_recover *rv)
 	unsigned long start;
 	int error, neg = 0;
 
-	log_debug(ls, "recover %llx", (unsigned long long)rv->seq);
+	log_debug(ls, "dlm_recover %llx", (unsigned long long)rv->seq);
 
 	mutex_lock(&ls->ls_recoverd_active);
 
@@ -76,14 +76,22 @@ static int ls_recover(struct dlm_ls *ls, struct dlm_recover *rv)
 
 	/*
 	 * Add or remove nodes from the lockspace's ls_nodes list.
-	 * Also waits for all nodes to complete dlm_recover_members.
 	 */
 
 	error = dlm_recover_members(ls, rv, &neg);
 	if (error) {
-		log_debug(ls, "recover_members failed %d", error);
+		log_debug(ls, "dlm_recover_members error %d", error);
 		goto fail;
 	}
+
+	dlm_set_recover_status(ls, DLM_RS_NODES);
+
+	error = dlm_recover_members_wait(ls);
+	if (error) {
+		log_debug(ls, "dlm_recover_members_wait error %d", error);
+		goto fail;
+	}
+
 	start = jiffies;
 
 	/*
@@ -93,17 +101,15 @@ static int ls_recover(struct dlm_ls *ls, struct dlm_recover *rv)
 
 	error = dlm_recover_directory(ls);
 	if (error) {
-		log_debug(ls, "recover_directory failed %d", error);
+		log_debug(ls, "dlm_recover_directory error %d", error);
 		goto fail;
 	}
 
-	/*
-	 * Wait for all nodes to complete directory rebuild.
-	 */
+	dlm_set_recover_status(ls, DLM_RS_DIR);
 
 	error = dlm_recover_directory_wait(ls);
 	if (error) {
-		log_debug(ls, "recover_directory_wait failed %d", error);
+		log_debug(ls, "dlm_recover_directory_wait error %d", error);
 		goto fail;
 	}
 
@@ -133,7 +139,7 @@ static int ls_recover(struct dlm_ls *ls, struct dlm_recover *rv)
 
 		error = dlm_recover_masters(ls);
 		if (error) {
-			log_debug(ls, "recover_masters failed %d", error);
+			log_debug(ls, "dlm_recover_masters error %d", error);
 			goto fail;
 		}
 
@@ -143,13 +149,15 @@ static int ls_recover(struct dlm_ls *ls, struct dlm_recover *rv)
 
 		error = dlm_recover_locks(ls);
 		if (error) {
-			log_debug(ls, "recover_locks failed %d", error);
+			log_debug(ls, "dlm_recover_locks error %d", error);
 			goto fail;
 		}
 
+		dlm_set_recover_status(ls, DLM_RS_LOCKS);
+
 		error = dlm_recover_locks_wait(ls);
 		if (error) {
-			log_debug(ls, "recover_locks_wait failed %d", error);
+			log_debug(ls, "dlm_recover_locks_wait error %d", error);
 			goto fail;
 		}
 
@@ -170,7 +178,7 @@ static int ls_recover(struct dlm_ls *ls, struct dlm_recover *rv)
 
 		error = dlm_recover_locks_wait(ls);
 		if (error) {
-			log_debug(ls, "recover_locks_wait failed %d", error);
+			log_debug(ls, "dlm_recover_locks_wait error %d", error);
 			goto fail;
 		}
 	}
@@ -186,9 +194,10 @@ static int ls_recover(struct dlm_ls *ls, struct dlm_recover *rv)
 	dlm_purge_requestqueue(ls);
 
 	dlm_set_recover_status(ls, DLM_RS_DONE);
+
 	error = dlm_recover_done_wait(ls);
 	if (error) {
-		log_debug(ls, "recover_done_wait failed %d", error);
+		log_debug(ls, "dlm_recover_done_wait error %d", error);
 		goto fail;
 	}
 
@@ -200,34 +209,35 @@ static int ls_recover(struct dlm_ls *ls, struct dlm_recover *rv)
 
 	error = enable_locking(ls, rv->seq);
 	if (error) {
-		log_debug(ls, "enable_locking failed %d", error);
+		log_debug(ls, "enable_locking error %d", error);
 		goto fail;
 	}
 
 	error = dlm_process_requestqueue(ls);
 	if (error) {
-		log_debug(ls, "process_requestqueue failed %d", error);
+		log_debug(ls, "dlm_process_requestqueue error %d", error);
 		goto fail;
 	}
 
 	error = dlm_recover_waiters_post(ls);
 	if (error) {
-		log_debug(ls, "recover_waiters_post failed %d", error);
+		log_debug(ls, "dlm_recover_waiters_post error %d", error);
 		goto fail;
 	}
 
 	dlm_grant_after_purge(ls);
 
-	log_debug(ls, "recover %llx done: %u ms",
-		  (unsigned long long)rv->seq,
+	log_debug(ls, "dlm_recover %llx generation %u done: %u ms",
+		  (unsigned long long)rv->seq, ls->ls_generation,
 		  jiffies_to_msecs(jiffies - start));
 	mutex_unlock(&ls->ls_recoverd_active);
 
+	dlm_lsop_recover_done(ls);
 	return 0;
 
  fail:
 	dlm_release_root_list(ls);
-	log_debug(ls, "recover %llx error %d",
+	log_debug(ls, "dlm_recover %llx error %d",
 		  (unsigned long long)rv->seq, error);
 	mutex_unlock(&ls->ls_recoverd_active);
 	return error;
@@ -250,8 +260,7 @@ static void do_ls_recovery(struct dlm_ls *ls)
 
 	if (rv) {
 		ls_recover(ls, rv);
-		kfree(rv->nodeids);
-		kfree(rv->new);
+		kfree(rv->nodes);
 		kfree(rv);
 	}
 }
diff --git a/fs/dlm/user.c b/fs/dlm/user.c
index d8ea60756403..eb4ed9ba3098 100644
--- a/fs/dlm/user.c
+++ b/fs/dlm/user.c
@@ -392,8 +392,9 @@ static int device_create_lockspace(struct dlm_lspace_params *params)
 	if (!capable(CAP_SYS_ADMIN))
 		return -EPERM;
 
-	error = dlm_new_lockspace(params->name, strlen(params->name),
-				  &lockspace, params->flags, DLM_USER_LVB_LEN);
+	error = dlm_new_lockspace(params->name, NULL, params->flags,
+				  DLM_USER_LVB_LEN, NULL, NULL, NULL,
+				  &lockspace);
 	if (error)
 		return error;
 
diff --git a/fs/exec.c b/fs/exec.c
index 3f64b9f26e7d..aeb135c7ff5c 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -59,6 +59,8 @@
 #include <asm/uaccess.h>
 #include <asm/mmu_context.h>
 #include <asm/tlb.h>
+
+#include <trace/events/task.h>
 #include "internal.h"
 
 int core_uses_pid;
@@ -1054,6 +1056,8 @@ void set_task_comm(struct task_struct *tsk, char *buf)
 {
 	task_lock(tsk);
 
+	trace_task_rename(tsk, buf);
+
 	/*
 	 * Threads may access current->comm without holding
 	 * the task lock, so write the string carefully.
diff --git a/fs/exofs/Kconfig b/fs/exofs/Kconfig
index da42f32c49be..86194b2f799d 100644
--- a/fs/exofs/Kconfig
+++ b/fs/exofs/Kconfig
@@ -1,14 +1,3 @@
-# Note ORE needs to "select ASYNC_XOR". So Not to force multiple selects
-# for every ORE user we do it like this. Any user should add itself here
-# at the "depends on EXOFS_FS || ..." with an ||. The dependencies are
-# selected here, and we default to "ON". So in effect it is like been
-# selected by any of the users.
-config ORE
-	tristate
-	depends on EXOFS_FS || PNFS_OBJLAYOUT
-	select ASYNC_XOR
-	default SCSI_OSD_ULD
-
 config EXOFS_FS
 	tristate "exofs: OSD based file system support"
 	depends on SCSI_OSD_ULD
diff --git a/fs/exofs/Kconfig.ore b/fs/exofs/Kconfig.ore
new file mode 100644
index 000000000000..1ca7fb7b6ba8
--- /dev/null
+++ b/fs/exofs/Kconfig.ore
@@ -0,0 +1,12 @@
+# ORE - Objects Raid Engine (libore.ko)
+#
+# Note ORE needs to "select ASYNC_XOR". So Not to force multiple selects
+# for every ORE user we do it like this. Any user should add itself here
+# at the "depends on EXOFS_FS || ..." with an ||. The dependencies are
+# selected here, and we default to "ON". So in effect it is like been
+# selected by any of the users.
+config ORE
+	tristate
+	depends on EXOFS_FS || PNFS_OBJLAYOUT
+	select ASYNC_XOR
+	default SCSI_OSD_ULD
diff --git a/fs/exofs/ore.c b/fs/exofs/ore.c
index d271ad837202..49cf230554a2 100644
--- a/fs/exofs/ore.c
+++ b/fs/exofs/ore.c
@@ -266,7 +266,7 @@ int  ore_get_rw_state(struct ore_layout *layout, struct ore_components *oc,
 
 			/* first/last seg is split */
 			num_raid_units += layout->group_width;
-			sgs_per_dev = div_u64(num_raid_units, data_devs);
+			sgs_per_dev = div_u64(num_raid_units, data_devs) + 2;
 		} else {
 			/* For Writes add parity pages array. */
 			max_par_pages = num_raid_units * pages_in_unit *
@@ -445,10 +445,10 @@ int ore_check_io(struct ore_io_state *ios, ore_on_dev_error on_dev_error)
 			u64 residual = ios->reading ?
 					or->in.residual : or->out.residual;
 			u64 offset = (ios->offset + ios->length) - residual;
-			struct ore_dev *od = ios->oc->ods[
-					per_dev->dev - ios->oc->first_dev];
+			unsigned dev = per_dev->dev - ios->oc->first_dev;
+			struct ore_dev *od = ios->oc->ods[dev];
 
-			on_dev_error(ios, od, per_dev->dev, osi.osd_err_pri,
+			on_dev_error(ios, od, dev, osi.osd_err_pri,
 				     offset, residual);
 		}
 		if (osi.osd_err_pri >= acumulated_osd_err) {
diff --git a/fs/exofs/ore_raid.c b/fs/exofs/ore_raid.c
index 29c47e5c4a86..d222c77cfa1b 100644
--- a/fs/exofs/ore_raid.c
+++ b/fs/exofs/ore_raid.c
@@ -328,8 +328,8 @@ static int _alloc_read_4_write(struct ore_io_state *ios)
 /* @si contains info of the to-be-inserted page. Update of @si should be
  * maintained by caller. Specificaly si->dev, si->obj_offset, ...
  */
-static int _add_to_read_4_write(struct ore_io_state *ios,
-				struct ore_striping_info *si, struct page *page)
+static int _add_to_r4w(struct ore_io_state *ios, struct ore_striping_info *si,
+		       struct page *page, unsigned pg_len)
 {
 	struct request_queue *q;
 	struct ore_per_dev_state *per_dev;
@@ -366,17 +366,60 @@ static int _add_to_read_4_write(struct ore_io_state *ios,
 		_ore_add_sg_seg(per_dev, gap, true);
 	}
 	q = osd_request_queue(ore_comp_dev(read_ios->oc, per_dev->dev));
-	added_len = bio_add_pc_page(q, per_dev->bio, page, PAGE_SIZE, 0);
-	if (unlikely(added_len != PAGE_SIZE)) {
+	added_len = bio_add_pc_page(q, per_dev->bio, page, pg_len,
+				    si->obj_offset % PAGE_SIZE);
+	if (unlikely(added_len != pg_len)) {
 		ORE_DBGMSG("Failed to bio_add_pc_page bi_vcnt=%d\n",
 			      per_dev->bio->bi_vcnt);
 		return -ENOMEM;
 	}
 
-	per_dev->length += PAGE_SIZE;
+	per_dev->length += pg_len;
 	return 0;
 }
 
+/* read the beginning of an unaligned first page */
+static int _add_to_r4w_first_page(struct ore_io_state *ios, struct page *page)
+{
+	struct ore_striping_info si;
+	unsigned pg_len;
+
+	ore_calc_stripe_info(ios->layout, ios->offset, 0, &si);
+
+	pg_len = si.obj_offset % PAGE_SIZE;
+	si.obj_offset -= pg_len;
+
+	ORE_DBGMSG("offset=0x%llx len=0x%x index=0x%lx dev=%x\n",
+		   _LLU(si.obj_offset), pg_len, page->index, si.dev);
+
+	return _add_to_r4w(ios, &si, page, pg_len);
+}
+
+/* read the end of an incomplete last page */
+static int _add_to_r4w_last_page(struct ore_io_state *ios, u64 *offset)
+{
+	struct ore_striping_info si;
+	struct page *page;
+	unsigned pg_len, p, c;
+
+	ore_calc_stripe_info(ios->layout, *offset, 0, &si);
+
+	p = si.unit_off / PAGE_SIZE;
+	c = _dev_order(ios->layout->group_width * ios->layout->mirrors_p1,
+		       ios->layout->mirrors_p1, si.par_dev, si.dev);
+	page = ios->sp2d->_1p_stripes[p].pages[c];
+
+	pg_len = PAGE_SIZE - (si.unit_off % PAGE_SIZE);
+	*offset += pg_len;
+
+	ORE_DBGMSG("p=%d, c=%d next-offset=0x%llx len=0x%x dev=%x par_dev=%d\n",
+		   p, c, _LLU(*offset), pg_len, si.dev, si.par_dev);
+
+	BUG_ON(!page);
+
+	return _add_to_r4w(ios, &si, page, pg_len);
+}
+
 static void _mark_read4write_pages_uptodate(struct ore_io_state *ios, int ret)
 {
 	struct bio_vec *bv;
@@ -444,9 +487,13 @@ static int _read_4_write(struct ore_io_state *ios)
 			struct page **pp = &_1ps->pages[c];
 			bool uptodate;
 
-			if (*pp)
+			if (*pp) {
+				if (ios->offset % PAGE_SIZE)
+					/* Read the remainder of the page */
+					_add_to_r4w_first_page(ios, *pp);
 				/* to-be-written pages start here */
 				goto read_last_stripe;
+			}
 
 			*pp = ios->r4w->get_page(ios->private, offset,
 						 &uptodate);
@@ -454,7 +501,7 @@ static int _read_4_write(struct ore_io_state *ios)
 				return -ENOMEM;
 
 			if (!uptodate)
-				_add_to_read_4_write(ios, &read_si, *pp);
+				_add_to_r4w(ios, &read_si, *pp, PAGE_SIZE);
 
 			/* Mark read-pages to be cache_released */
 			_1ps->page_is_read[c] = true;
@@ -465,8 +512,11 @@ static int _read_4_write(struct ore_io_state *ios)
 	}
 
 read_last_stripe:
-	offset = ios->offset + (ios->length + PAGE_SIZE - 1) /
-				PAGE_SIZE * PAGE_SIZE;
+	offset = ios->offset + ios->length;
+	if (offset % PAGE_SIZE)
+		_add_to_r4w_last_page(ios, &offset);
+		/* offset will be aligned to next page */
+
 	last_stripe_end = div_u64(offset + bytes_in_stripe - 1, bytes_in_stripe)
 				 * bytes_in_stripe;
 	if (offset == last_stripe_end) /* Optimize for the aligned case */
@@ -503,7 +553,7 @@ read_last_stripe:
 			/* Mark read-pages to be cache_released */
 			_1ps->page_is_read[c] = true;
 			if (!uptodate)
-				_add_to_read_4_write(ios, &read_si, page);
+				_add_to_r4w(ios, &read_si, page, PAGE_SIZE);
 		}
 
 		offset += PAGE_SIZE;
@@ -551,7 +601,11 @@ int _ore_add_parity_unit(struct ore_io_state *ios,
 			    unsigned cur_len)
 {
 	if (ios->reading) {
-		BUG_ON(per_dev->cur_sg >= ios->sgs_per_dev);
+		if (per_dev->cur_sg >= ios->sgs_per_dev) {
+			ORE_DBGMSG("cur_sg(%d) >= sgs_per_dev(%d)\n" ,
+				per_dev->cur_sg, ios->sgs_per_dev);
+			return -ENOMEM;
+		}
 		_ore_add_sg_seg(per_dev, cur_len, true);
 	} else {
 		struct __stripe_pages_2d *sp2d = ios->sp2d;
@@ -612,8 +666,6 @@ int _ore_post_alloc_raid_stuff(struct ore_io_state *ios)
 			return -ENOMEM;
 		}
 
-		BUG_ON(ios->offset % PAGE_SIZE);
-
 		/* Round io down to last full strip */
 		first_stripe = div_u64(ios->offset, stripe_size);
 		last_stripe = div_u64(ios->offset + ios->length, stripe_size);
diff --git a/fs/exofs/super.c b/fs/exofs/super.c
index 8addfe314dc7..d22cd168c6ee 100644
--- a/fs/exofs/super.c
+++ b/fs/exofs/super.c
@@ -838,6 +838,8 @@ static int exofs_fill_super(struct super_block *sb, void *data, int silent)
 	ret = bdi_setup_and_register(&sbi->bdi, "exofs", BDI_CAP_MAP_COPY);
 	if (ret) {
 		EXOFS_DBGMSG("Failed to bdi_setup_and_register\n");
+		dput(sb->s_root);
+		sb->s_root = NULL;
 		goto free_sbi;
 	}
 
diff --git a/fs/ext2/ialloc.c b/fs/ext2/ialloc.c
index cd7f5f424a75..8b15cf8cef37 100644
--- a/fs/ext2/ialloc.c
+++ b/fs/ext2/ialloc.c
@@ -573,8 +573,11 @@ got:
 	inode->i_generation = sbi->s_next_generation++;
 	spin_unlock(&sbi->s_next_gen_lock);
 	if (insert_inode_locked(inode) < 0) {
-		err = -EINVAL;
-		goto fail_drop;
+		ext2_error(sb, "ext2_new_inode",
+			   "inode number already in use - inode=%lu",
+			   (unsigned long) ino);
+		err = -EIO;
+		goto fail;
 	}
 
 	dquot_initialize(inode);
diff --git a/fs/ext2/inode.c b/fs/ext2/inode.c
index 91a6945af6d8..740cad8dcd8d 100644
--- a/fs/ext2/inode.c
+++ b/fs/ext2/inode.c
@@ -26,7 +26,6 @@
 #include <linux/highuid.h>
 #include <linux/pagemap.h>
 #include <linux/quotaops.h>
-#include <linux/module.h>
 #include <linux/writeback.h>
 #include <linux/buffer_head.h>
 #include <linux/mpage.h>
@@ -36,10 +35,6 @@
 #include "acl.h"
 #include "xip.h"
 
-MODULE_AUTHOR("Remy Card and others");
-MODULE_DESCRIPTION("Second Extended Filesystem");
-MODULE_LICENSE("GPL");
-
 static int __ext2_write_inode(struct inode *inode, int do_sync);
 
 /*
diff --git a/fs/ext2/super.c b/fs/ext2/super.c
index 9b403f064ce0..0090595beb28 100644
--- a/fs/ext2/super.c
+++ b/fs/ext2/super.c
@@ -1520,5 +1520,8 @@ static void __exit exit_ext2_fs(void)
 	exit_ext2_xattr();
 }
 
+MODULE_AUTHOR("Remy Card and others");
+MODULE_DESCRIPTION("Second Extended Filesystem");
+MODULE_LICENSE("GPL");
 module_init(init_ext2_fs)
 module_exit(exit_ext2_fs)
diff --git a/fs/ext2/xattr.c b/fs/ext2/xattr.c
index d27b71f1d183..6dcafc7efdfd 100644
--- a/fs/ext2/xattr.c
+++ b/fs/ext2/xattr.c
@@ -54,7 +54,6 @@
  */
 
 #include <linux/buffer_head.h>
-#include <linux/module.h>
 #include <linux/init.h>
 #include <linux/slab.h>
 #include <linux/mbcache.h>
diff --git a/fs/ext2/xattr_security.c b/fs/ext2/xattr_security.c
index c922adc8ef41..be7a8d02c9a7 100644
--- a/fs/ext2/xattr_security.c
+++ b/fs/ext2/xattr_security.c
@@ -3,7 +3,6 @@
  * Handler for storing security labels as extended attributes.
  */
 
-#include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/string.h>
 #include <linux/fs.h>
diff --git a/fs/ext2/xattr_trusted.c b/fs/ext2/xattr_trusted.c
index 667e46a8d62d..2989467d3595 100644
--- a/fs/ext2/xattr_trusted.c
+++ b/fs/ext2/xattr_trusted.c
@@ -5,7 +5,6 @@
  * Copyright (C) 2003 by Andreas Gruenbacher, <a.gruenbacher@computer.org>
  */
 
-#include <linux/module.h>
 #include <linux/string.h>
 #include <linux/capability.h>
 #include <linux/fs.h>
diff --git a/fs/ext2/xattr_user.c b/fs/ext2/xattr_user.c
index 099d20f47163..f470e44c4b8d 100644
--- a/fs/ext2/xattr_user.c
+++ b/fs/ext2/xattr_user.c
@@ -6,7 +6,6 @@
  */
 
 #include <linux/init.h>
-#include <linux/module.h>
 #include <linux/string.h>
 #include "ext2.h"
 #include "xattr.h"
diff --git a/fs/ext3/ialloc.c b/fs/ext3/ialloc.c
index 92cc86dfa23d..1cde28438014 100644
--- a/fs/ext3/ialloc.c
+++ b/fs/ext3/ialloc.c
@@ -525,8 +525,12 @@ got:
 	if (IS_DIRSYNC(inode))
 		handle->h_sync = 1;
 	if (insert_inode_locked(inode) < 0) {
-		err = -EINVAL;
-		goto fail_drop;
+		/*
+		 * Likely a bitmap corruption causing inode to be allocated
+		 * twice.
+		 */
+		err = -EIO;
+		goto fail;
 	}
 	spin_lock(&sbi->s_next_gen_lock);
 	inode->i_generation = sbi->s_next_generation++;
diff --git a/fs/ext3/inode.c b/fs/ext3/inode.c
index 15cb47088aac..2d0afeca0b47 100644
--- a/fs/ext3/inode.c
+++ b/fs/ext3/inode.c
@@ -22,7 +22,6 @@
  *  Assorted race fixes, rewrite of ext3_get_block() by Al Viro, 2000
  */
 
-#include <linux/module.h>
 #include <linux/fs.h>
 #include <linux/time.h>
 #include <linux/ext3_jbd.h>
@@ -223,8 +222,12 @@ void ext3_evict_inode (struct inode *inode)
 	 *
 	 * Note that directories do not have this problem because they don't
 	 * use page cache.
+	 *
+	 * The s_journal check handles the case when ext3_get_journal() fails
+	 * and puts the journal inode.
 	 */
 	if (inode->i_nlink && ext3_should_journal_data(inode) &&
+	    EXT3_SB(inode->i_sb)->s_journal &&
 	    (S_ISLNK(inode->i_mode) || S_ISREG(inode->i_mode))) {
 		tid_t commit_tid = atomic_read(&ei->i_datasync_tid);
 		journal_t *journal = EXT3_SB(inode->i_sb)->s_journal;
@@ -1132,9 +1135,11 @@ struct buffer_head *ext3_bread(handle_t *handle, struct inode *inode,
 	bh = ext3_getblk(handle, inode, block, create, err);
 	if (!bh)
 		return bh;
-	if (buffer_uptodate(bh))
+	if (bh_uptodate_or_lock(bh))
 		return bh;
-	ll_rw_block(READ | REQ_META | REQ_PRIO, 1, &bh);
+	get_bh(bh);
+	bh->b_end_io = end_buffer_read_sync;
+	submit_bh(READ | REQ_META | REQ_PRIO, bh);
 	wait_on_buffer(bh);
 	if (buffer_uptodate(bh))
 		return bh;
@@ -1617,7 +1622,13 @@ static int ext3_ordered_writepage(struct page *page,
 	int err;
 
 	J_ASSERT(PageLocked(page));
-	WARN_ON_ONCE(IS_RDONLY(inode));
+	/*
+	 * We don't want to warn for emergency remount. The condition is
+	 * ordered to avoid dereferencing inode->i_sb in non-error case to
+	 * avoid slow-downs.
+	 */
+	WARN_ON_ONCE(IS_RDONLY(inode) &&
+		     !(EXT3_SB(inode->i_sb)->s_mount_state & EXT3_ERROR_FS));
 
 	/*
 	 * We give up here if we're reentered, because it might be for a
@@ -1692,7 +1703,13 @@ static int ext3_writeback_writepage(struct page *page,
 	int err;
 
 	J_ASSERT(PageLocked(page));
-	WARN_ON_ONCE(IS_RDONLY(inode));
+	/*
+	 * We don't want to warn for emergency remount. The condition is
+	 * ordered to avoid dereferencing inode->i_sb in non-error case to
+	 * avoid slow-downs.
+	 */
+	WARN_ON_ONCE(IS_RDONLY(inode) &&
+		     !(EXT3_SB(inode->i_sb)->s_mount_state & EXT3_ERROR_FS));
 
 	if (ext3_journal_current_handle())
 		goto out_fail;
@@ -1735,7 +1752,13 @@ static int ext3_journalled_writepage(struct page *page,
 	int err;
 
 	J_ASSERT(PageLocked(page));
-	WARN_ON_ONCE(IS_RDONLY(inode));
+	/*
+	 * We don't want to warn for emergency remount. The condition is
+	 * ordered to avoid dereferencing inode->i_sb in non-error case to
+	 * avoid slow-downs.
+	 */
+	WARN_ON_ONCE(IS_RDONLY(inode) &&
+		     !(EXT3_SB(inode->i_sb)->s_mount_state & EXT3_ERROR_FS));
 
 	if (ext3_journal_current_handle())
 		goto no_write;
@@ -2064,12 +2087,10 @@ static int ext3_block_truncate_page(struct inode *inode, loff_t from)
 	if (PageUptodate(page))
 		set_buffer_uptodate(bh);
 
-	if (!buffer_uptodate(bh)) {
-		err = -EIO;
-		ll_rw_block(READ, 1, &bh);
-		wait_on_buffer(bh);
+	if (!bh_uptodate_or_lock(bh)) {
+		err = bh_submit_read(bh);
 		/* Uhhuh. Read error. Complain and punt. */
-		if (!buffer_uptodate(bh))
+		if (err)
 			goto unlock;
 	}
 
diff --git a/fs/ext3/ioctl.c b/fs/ext3/ioctl.c
index 8e37c41a071b..4af574ce4a46 100644
--- a/fs/ext3/ioctl.c
+++ b/fs/ext3/ioctl.c
@@ -134,10 +134,11 @@ flags_out:
 			goto setversion_out;
 		}
 
+		mutex_lock(&inode->i_mutex);
 		handle = ext3_journal_start(inode, 1);
 		if (IS_ERR(handle)) {
 			err = PTR_ERR(handle);
-			goto setversion_out;
+			goto unlock_out;
 		}
 		err = ext3_reserve_inode_write(handle, inode, &iloc);
 		if (err == 0) {
@@ -146,6 +147,9 @@ flags_out:
 			err = ext3_mark_iloc_dirty(handle, inode, &iloc);
 		}
 		ext3_journal_stop(handle);
+
+unlock_out:
+		mutex_unlock(&inode->i_mutex);
 setversion_out:
 		mnt_drop_write_file(filp);
 		return err;
diff --git a/fs/ext3/namei.c b/fs/ext3/namei.c
index 4f35b2f315d4..e8e211795e9f 100644
--- a/fs/ext3/namei.c
+++ b/fs/ext3/namei.c
@@ -921,9 +921,12 @@ restart:
 				num++;
 				bh = ext3_getblk(NULL, dir, b++, 0, &err);
 				bh_use[ra_max] = bh;
-				if (bh)
-					ll_rw_block(READ | REQ_META | REQ_PRIO,
-						    1, &bh);
+				if (bh && !bh_uptodate_or_lock(bh)) {
+					get_bh(bh);
+					bh->b_end_io = end_buffer_read_sync;
+					submit_bh(READ | REQ_META | REQ_PRIO,
+						  bh);
+				}
 			}
 		}
 		if ((bh = bh_use[ra_ptr++]) == NULL)
@@ -2272,7 +2275,7 @@ retry:
 			err = PTR_ERR(handle);
 			goto err_drop_inode;
 		}
-		inc_nlink(inode);
+		set_nlink(inode, 1);
 		err = ext3_orphan_del(handle, inode);
 		if (err) {
 			ext3_journal_stop(handle);
diff --git a/fs/ext3/super.c b/fs/ext3/super.c
index 3a10b884e1be..726c7ef6cdf1 100644
--- a/fs/ext3/super.c
+++ b/fs/ext3/super.c
@@ -2059,9 +2059,10 @@ static int ext3_fill_super (struct super_block *sb, void *data, int silent)
 	EXT3_SB(sb)->s_mount_state |= EXT3_ORPHAN_FS;
 	ext3_orphan_cleanup(sb, es);
 	EXT3_SB(sb)->s_mount_state &= ~EXT3_ORPHAN_FS;
-	if (needs_recovery)
+	if (needs_recovery) {
+		ext3_mark_recovery_complete(sb, es);
 		ext3_msg(sb, KERN_INFO, "recovery complete");
-	ext3_mark_recovery_complete(sb, es);
+	}
 	ext3_msg(sb, KERN_INFO, "mounted filesystem with %s data mode",
 		test_opt(sb,DATA_FLAGS) == EXT3_MOUNT_JOURNAL_DATA ? "journal":
 		test_opt(sb,DATA_FLAGS) == EXT3_MOUNT_ORDERED_DATA ? "ordered":
@@ -2229,11 +2230,11 @@ static journal_t *ext3_get_dev_journal(struct super_block *sb,
 		goto out_bdev;
 	}
 	journal->j_private = sb;
-	ll_rw_block(READ, 1, &journal->j_sb_buffer);
-	wait_on_buffer(journal->j_sb_buffer);
-	if (!buffer_uptodate(journal->j_sb_buffer)) {
-		ext3_msg(sb, KERN_ERR, "I/O error on journal device");
-		goto out_journal;
+	if (!bh_uptodate_or_lock(journal->j_sb_buffer)) {
+		if (bh_submit_read(journal->j_sb_buffer)) {
+			ext3_msg(sb, KERN_ERR, "I/O error on journal device");
+			goto out_journal;
+		}
 	}
 	if (be32_to_cpu(journal->j_superblock->s_nr_users) != 1) {
 		ext3_msg(sb, KERN_ERR,
diff --git a/fs/ext3/xattr_security.c b/fs/ext3/xattr_security.c
index 3c218b8a51d4..ea26f2acab94 100644
--- a/fs/ext3/xattr_security.c
+++ b/fs/ext3/xattr_security.c
@@ -3,7 +3,6 @@
  * Handler for storing security labels as extended attributes.
  */
 
-#include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/string.h>
 #include <linux/fs.h>
diff --git a/fs/ext3/xattr_trusted.c b/fs/ext3/xattr_trusted.c
index dc8edda9ffe0..2526a8829de8 100644
--- a/fs/ext3/xattr_trusted.c
+++ b/fs/ext3/xattr_trusted.c
@@ -5,7 +5,6 @@
  * Copyright (C) 2003 by Andreas Gruenbacher, <a.gruenbacher@computer.org>
  */
 
-#include <linux/module.h>
 #include <linux/string.h>
 #include <linux/capability.h>
 #include <linux/fs.h>
diff --git a/fs/ext3/xattr_user.c b/fs/ext3/xattr_user.c
index 7a321974d584..b32e473a1e33 100644
--- a/fs/ext3/xattr_user.c
+++ b/fs/ext3/xattr_user.c
@@ -5,7 +5,6 @@
  * Copyright (C) 2001 by Andreas Gruenbacher, <a.gruenbacher@computer.org>
  */
 
-#include <linux/module.h>
 #include <linux/string.h>
 #include <linux/fs.h>
 #include <linux/ext3_jbd.h>
diff --git a/fs/ext4/balloc.c b/fs/ext4/balloc.c
index 12ccacda44e0..f9e2cd8cf711 100644
--- a/fs/ext4/balloc.c
+++ b/fs/ext4/balloc.c
@@ -23,6 +23,8 @@
 
 #include <trace/events/ext4.h>
 
+static unsigned ext4_num_base_meta_clusters(struct super_block *sb,
+					    ext4_group_t block_group);
 /*
  * balloc.c contains the blocks allocation and deallocation routines
  */
@@ -668,7 +670,7 @@ unsigned long ext4_bg_num_gdb(struct super_block *sb, ext4_group_t group)
  * This function returns the number of file system metadata clusters at
  * the beginning of a block group, including the reserved gdt blocks.
  */
-unsigned ext4_num_base_meta_clusters(struct super_block *sb,
+static unsigned ext4_num_base_meta_clusters(struct super_block *sb,
 				     ext4_group_t block_group)
 {
 	struct ext4_sb_info *sbi = EXT4_SB(sb);
diff --git a/fs/ext4/block_validity.c b/fs/ext4/block_validity.c
index 8efb2f0a3447..3f11656bd72e 100644
--- a/fs/ext4/block_validity.c
+++ b/fs/ext4/block_validity.c
@@ -13,7 +13,6 @@
 #include <linux/namei.h>
 #include <linux/quotaops.h>
 #include <linux/buffer_head.h>
-#include <linux/module.h>
 #include <linux/swap.h>
 #include <linux/pagemap.h>
 #include <linux/blkdev.h>
diff --git a/fs/ext4/ext4.h b/fs/ext4/ext4.h
index 1554b15f91bc..513004fc3d84 100644
--- a/fs/ext4/ext4.h
+++ b/fs/ext4/ext4.h
@@ -511,6 +511,14 @@ struct ext4_new_group_data {
 	__u32 free_blocks_count;
 };
 
+/* Indexes used to index group tables in ext4_new_group_data */
+enum {
+	BLOCK_BITMAP = 0,	/* block bitmap */
+	INODE_BITMAP,		/* inode bitmap */
+	INODE_TABLE,		/* inode tables */
+	GROUP_TABLE_COUNT,
+};
+
 /*
  * Flags used by ext4_map_blocks()
  */
@@ -575,6 +583,7 @@ struct ext4_new_group_data {
  /* note ioctl 11 reserved for filesystem-independent FIEMAP ioctl */
 #define EXT4_IOC_ALLOC_DA_BLKS		_IO('f', 12)
 #define EXT4_IOC_MOVE_EXT		_IOWR('f', 15, struct move_extent)
+#define EXT4_IOC_RESIZE_FS		_IOW('f', 16, __u64)
 
 #if defined(__KERNEL__) && defined(CONFIG_COMPAT)
 /*
@@ -957,12 +966,13 @@ struct ext4_inode_info {
 #define test_opt2(sb, opt)		(EXT4_SB(sb)->s_mount_opt2 & \
 					 EXT4_MOUNT2_##opt)
 
-#define ext4_set_bit			__test_and_set_bit_le
+#define ext4_test_and_set_bit		__test_and_set_bit_le
+#define ext4_set_bit			__set_bit_le
 #define ext4_set_bit_atomic		ext2_set_bit_atomic
-#define ext4_clear_bit			__test_and_clear_bit_le
+#define ext4_test_and_clear_bit		__test_and_clear_bit_le
+#define ext4_clear_bit			__clear_bit_le
 #define ext4_clear_bit_atomic		ext2_clear_bit_atomic
 #define ext4_test_bit			test_bit_le
-#define ext4_find_first_zero_bit	find_first_zero_bit_le
 #define ext4_find_next_zero_bit		find_next_zero_bit_le
 #define ext4_find_next_bit		find_next_bit_le
 
@@ -1397,6 +1407,7 @@ static inline void ext4_clear_state_flags(struct ext4_inode_info *ei)
 #define EXT4_FEATURE_RO_COMPAT_EXTRA_ISIZE	0x0040
 #define EXT4_FEATURE_RO_COMPAT_QUOTA		0x0100
 #define EXT4_FEATURE_RO_COMPAT_BIGALLOC		0x0200
+#define EXT4_FEATURE_RO_COMPAT_METADATA_CSUM	0x0400
 
 #define EXT4_FEATURE_INCOMPAT_COMPRESSION	0x0001
 #define EXT4_FEATURE_INCOMPAT_FILETYPE		0x0002
@@ -1409,6 +1420,8 @@ static inline void ext4_clear_state_flags(struct ext4_inode_info *ei)
 #define EXT4_FEATURE_INCOMPAT_FLEX_BG		0x0200
 #define EXT4_FEATURE_INCOMPAT_EA_INODE		0x0400 /* EA in inode */
 #define EXT4_FEATURE_INCOMPAT_DIRDATA		0x1000 /* data in dirent */
+#define EXT4_FEATURE_INCOMPAT_INLINEDATA	0x2000 /* data in inode */
+#define EXT4_FEATURE_INCOMPAT_LARGEDIR		0x4000 /* >2GB or 3-lvl htree */
 
 #define EXT2_FEATURE_COMPAT_SUPP	EXT4_FEATURE_COMPAT_EXT_ATTR
 #define EXT2_FEATURE_INCOMPAT_SUPP	(EXT4_FEATURE_INCOMPAT_FILETYPE| \
@@ -1790,8 +1803,6 @@ extern void ext4_init_block_bitmap(struct super_block *sb,
 extern unsigned ext4_free_clusters_after_init(struct super_block *sb,
 					      ext4_group_t block_group,
 					      struct ext4_group_desc *gdp);
-extern unsigned ext4_num_base_meta_clusters(struct super_block *sb,
-					    ext4_group_t block_group);
 extern unsigned ext4_num_overhead_clusters(struct super_block *sb,
 					   ext4_group_t block_group,
 					   struct ext4_group_desc *gdp);
@@ -1880,16 +1891,9 @@ extern int ext4_alloc_da_blocks(struct inode *inode);
 extern void ext4_set_aops(struct inode *inode);
 extern int ext4_writepage_trans_blocks(struct inode *);
 extern int ext4_chunk_trans_blocks(struct inode *, int nrblocks);
-extern int ext4_block_truncate_page(handle_t *handle,
-		struct address_space *mapping, loff_t from);
-extern int ext4_block_zero_page_range(handle_t *handle,
-		struct address_space *mapping, loff_t from, loff_t length);
 extern int ext4_discard_partial_page_buffers(handle_t *handle,
 		struct address_space *mapping, loff_t from,
 		loff_t length, int flags);
-extern int ext4_discard_partial_page_buffers_no_lock(handle_t *handle,
-		struct inode *inode, struct page *page, loff_t from,
-		loff_t length, int flags);
 extern int ext4_page_mkwrite(struct vm_area_struct *vma, struct vm_fault *vmf);
 extern qsize_t *ext4_get_reserved_space(struct inode *inode);
 extern void ext4_da_update_reserve_space(struct inode *inode,
@@ -1924,6 +1928,7 @@ extern int ext4_group_add(struct super_block *sb,
 extern int ext4_group_extend(struct super_block *sb,
 				struct ext4_super_block *es,
 				ext4_fsblk_t n_blocks_count);
+extern int ext4_resize_fs(struct super_block *sb, ext4_fsblk_t n_blocks_count);
 
 /* super.c */
 extern void *ext4_kvmalloc(size_t size, gfp_t flags);
diff --git a/fs/ext4/extents.c b/fs/ext4/extents.c
index 607b1557d292..74f23c292e1b 100644
--- a/fs/ext4/extents.c
+++ b/fs/ext4/extents.c
@@ -29,7 +29,6 @@
  *   - smart tree reduction
  */
 
-#include <linux/module.h>
 #include <linux/fs.h>
 #include <linux/time.h>
 #include <linux/jbd2.h>
@@ -3281,6 +3280,9 @@ static int ext4_find_delalloc_range(struct inode *inode,
 	ext4_lblk_t i, pg_lblk;
 	pgoff_t index;
 
+	if (!test_opt(inode->i_sb, DELALLOC))
+		return 0;
+
 	/* reverse search wont work if fs block size is less than page size */
 	if (inode->i_blkbits < PAGE_CACHE_SHIFT)
 		search_hint_reverse = 0;
@@ -3453,8 +3455,8 @@ ext4_ext_handle_uninitialized_extents(handle_t *handle, struct inode *inode,
 	int err = 0;
 	ext4_io_end_t *io = EXT4_I(inode)->cur_aio_dio;
 
-	ext_debug("ext4_ext_handle_uninitialized_extents: inode %lu, logical"
-		  "block %llu, max_blocks %u, flags %d, allocated %u",
+	ext_debug("ext4_ext_handle_uninitialized_extents: inode %lu, logical "
+		  "block %llu, max_blocks %u, flags %x, allocated %u\n",
 		  inode->i_ino, (unsigned long long)map->m_lblk, map->m_len,
 		  flags, allocated);
 	ext4_ext_show_leaf(inode, path);
@@ -3625,7 +3627,7 @@ static int get_implied_cluster_alloc(struct super_block *sb,
 	struct ext4_sb_info *sbi = EXT4_SB(sb);
 	ext4_lblk_t c_offset = map->m_lblk & (sbi->s_cluster_ratio-1);
 	ext4_lblk_t ex_cluster_start, ex_cluster_end;
-	ext4_lblk_t rr_cluster_start, rr_cluster_end;
+	ext4_lblk_t rr_cluster_start;
 	ext4_lblk_t ee_block = le32_to_cpu(ex->ee_block);
 	ext4_fsblk_t ee_start = ext4_ext_pblock(ex);
 	unsigned short ee_len = ext4_ext_get_actual_len(ex);
@@ -3636,7 +3638,6 @@ static int get_implied_cluster_alloc(struct super_block *sb,
 
 	/* The requested region passed into ext4_map_blocks() */
 	rr_cluster_start = EXT4_B2C(sbi, map->m_lblk);
-	rr_cluster_end = EXT4_B2C(sbi, map->m_lblk + map->m_len - 1);
 
 	if ((rr_cluster_start == ex_cluster_end) ||
 	    (rr_cluster_start == ex_cluster_start)) {
diff --git a/fs/ext4/ialloc.c b/fs/ext4/ialloc.c
index 4637af036d9c..25d8c9781ad9 100644
--- a/fs/ext4/ialloc.c
+++ b/fs/ext4/ialloc.c
@@ -252,7 +252,7 @@ void ext4_free_inode(handle_t *handle, struct inode *inode)
 		fatal = ext4_journal_get_write_access(handle, bh2);
 	}
 	ext4_lock_group(sb, block_group);
-	cleared = ext4_clear_bit(bit, bitmap_bh->b_data);
+	cleared = ext4_test_and_clear_bit(bit, bitmap_bh->b_data);
 	if (fatal || !cleared) {
 		ext4_unlock_group(sb, block_group);
 		goto out;
@@ -358,7 +358,7 @@ static int find_group_orlov(struct super_block *sb, struct inode *parent,
 	struct ext4_sb_info *sbi = EXT4_SB(sb);
 	ext4_group_t real_ngroups = ext4_get_groups_count(sb);
 	int inodes_per_group = EXT4_INODES_PER_GROUP(sb);
-	unsigned int freei, avefreei;
+	unsigned int freei, avefreei, grp_free;
 	ext4_fsblk_t freeb, avefreec;
 	unsigned int ndirs;
 	int max_dirs, min_inodes;
@@ -477,8 +477,8 @@ fallback_retry:
 	for (i = 0; i < ngroups; i++) {
 		grp = (parent_group + i) % ngroups;
 		desc = ext4_get_group_desc(sb, grp, NULL);
-		if (desc && ext4_free_inodes_count(sb, desc) &&
-		    ext4_free_inodes_count(sb, desc) >= avefreei) {
+		grp_free = ext4_free_inodes_count(sb, desc);
+		if (desc && grp_free && grp_free >= avefreei) {
 			*group = grp;
 			return 0;
 		}
@@ -618,7 +618,7 @@ static int ext4_claim_inode(struct super_block *sb,
 	 */
 	down_read(&grp->alloc_sem);
 	ext4_lock_group(sb, group);
-	if (ext4_set_bit(ino, inode_bitmap_bh->b_data)) {
+	if (ext4_test_and_set_bit(ino, inode_bitmap_bh->b_data)) {
 		/* not a free inode */
 		retval = 1;
 		goto err_ret;
@@ -885,8 +885,12 @@ got:
 	if (IS_DIRSYNC(inode))
 		ext4_handle_sync(handle);
 	if (insert_inode_locked(inode) < 0) {
-		err = -EINVAL;
-		goto fail_drop;
+		/*
+		 * Likely a bitmap corruption causing inode to be allocated
+		 * twice.
+		 */
+		err = -EIO;
+		goto fail;
 	}
 	spin_lock(&sbi->s_next_gen_lock);
 	inode->i_generation = sbi->s_next_generation++;
diff --git a/fs/ext4/indirect.c b/fs/ext4/indirect.c
index 3cfc73fbca8e..830e1b2bf145 100644
--- a/fs/ext4/indirect.c
+++ b/fs/ext4/indirect.c
@@ -20,7 +20,6 @@
  *	(sct@redhat.com), 1993, 1998
  */
 
-#include <linux/module.h>
 #include "ext4_jbd2.h"
 #include "truncate.h"
 
diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c
index 7dbcc3e84570..feaa82fe629d 100644
--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -18,7 +18,6 @@
  *  Assorted race fixes, rewrite of ext4_get_block() by Al Viro, 2000
  */
 
-#include <linux/module.h>
 #include <linux/fs.h>
 #include <linux/time.h>
 #include <linux/jbd2.h>
@@ -72,6 +71,9 @@ static int ext4_set_bh_endio(struct buffer_head *bh, struct inode *inode);
 static void ext4_end_io_buffer_write(struct buffer_head *bh, int uptodate);
 static int __ext4_journalled_writepage(struct page *page, unsigned int len);
 static int ext4_bh_delay_or_unwritten(handle_t *handle, struct buffer_head *bh);
+static int ext4_discard_partial_page_buffers_no_lock(handle_t *handle,
+		struct inode *inode, struct page *page, loff_t from,
+		loff_t length, int flags);
 
 /*
  * Test whether an inode is a fast symlink.
@@ -2760,7 +2762,7 @@ static void ext4_end_io_dio(struct kiocb *iocb, loff_t offset,
 	if (!io_end || !size)
 		goto out;
 
-	ext_debug("ext4_end_io_dio(): io_end 0x%p"
+	ext_debug("ext4_end_io_dio(): io_end 0x%p "
 		  "for inode %lu, iocb 0x%p, offset %llu, size %llu\n",
  		  iocb->private, io_end->inode->i_ino, iocb, offset,
 		  size);
@@ -3161,7 +3163,7 @@ int ext4_discard_partial_page_buffers(handle_t *handle,
  *
  * Returns zero on sucess or negative on failure.
  */
-int ext4_discard_partial_page_buffers_no_lock(handle_t *handle,
+static int ext4_discard_partial_page_buffers_no_lock(handle_t *handle,
 		struct inode *inode, struct page *page, loff_t from,
 		loff_t length, int flags)
 {
@@ -3301,126 +3303,6 @@ next:
 	return err;
 }
 
-/*
- * ext4_block_truncate_page() zeroes out a mapping from file offset `from'
- * up to the end of the block which corresponds to `from'.
- * This required during truncate. We need to physically zero the tail end
- * of that block so it doesn't yield old data if the file is later grown.
- */
-int ext4_block_truncate_page(handle_t *handle,
-		struct address_space *mapping, loff_t from)
-{
-	unsigned offset = from & (PAGE_CACHE_SIZE-1);
-	unsigned length;
-	unsigned blocksize;
-	struct inode *inode = mapping->host;
-
-	blocksize = inode->i_sb->s_blocksize;
-	length = blocksize - (offset & (blocksize - 1));
-
-	return ext4_block_zero_page_range(handle, mapping, from, length);
-}
-
-/*
- * ext4_block_zero_page_range() zeros out a mapping of length 'length'
- * starting from file offset 'from'.  The range to be zero'd must
- * be contained with in one block.  If the specified range exceeds
- * the end of the block it will be shortened to end of the block
- * that cooresponds to 'from'
- */
-int ext4_block_zero_page_range(handle_t *handle,
-		struct address_space *mapping, loff_t from, loff_t length)
-{
-	ext4_fsblk_t index = from >> PAGE_CACHE_SHIFT;
-	unsigned offset = from & (PAGE_CACHE_SIZE-1);
-	unsigned blocksize, max, pos;
-	ext4_lblk_t iblock;
-	struct inode *inode = mapping->host;
-	struct buffer_head *bh;
-	struct page *page;
-	int err = 0;
-
-	page = find_or_create_page(mapping, from >> PAGE_CACHE_SHIFT,
-				   mapping_gfp_mask(mapping) & ~__GFP_FS);
-	if (!page)
-		return -ENOMEM;
-
-	blocksize = inode->i_sb->s_blocksize;
-	max = blocksize - (offset & (blocksize - 1));
-
-	/*
-	 * correct length if it does not fall between
-	 * 'from' and the end of the block
-	 */
-	if (length > max || length < 0)
-		length = max;
-
-	iblock = index << (PAGE_CACHE_SHIFT - inode->i_sb->s_blocksize_bits);
-
-	if (!page_has_buffers(page))
-		create_empty_buffers(page, blocksize, 0);
-
-	/* Find the buffer that contains "offset" */
-	bh = page_buffers(page);
-	pos = blocksize;
-	while (offset >= pos) {
-		bh = bh->b_this_page;
-		iblock++;
-		pos += blocksize;
-	}
-
-	err = 0;
-	if (buffer_freed(bh)) {
-		BUFFER_TRACE(bh, "freed: skip");
-		goto unlock;
-	}
-
-	if (!buffer_mapped(bh)) {
-		BUFFER_TRACE(bh, "unmapped");
-		ext4_get_block(inode, iblock, bh, 0);
-		/* unmapped? It's a hole - nothing to do */
-		if (!buffer_mapped(bh)) {
-			BUFFER_TRACE(bh, "still unmapped");
-			goto unlock;
-		}
-	}
-
-	/* Ok, it's mapped. Make sure it's up-to-date */
-	if (PageUptodate(page))
-		set_buffer_uptodate(bh);
-
-	if (!buffer_uptodate(bh)) {
-		err = -EIO;
-		ll_rw_block(READ, 1, &bh);
-		wait_on_buffer(bh);
-		/* Uhhuh. Read error. Complain and punt. */
-		if (!buffer_uptodate(bh))
-			goto unlock;
-	}
-
-	if (ext4_should_journal_data(inode)) {
-		BUFFER_TRACE(bh, "get write access");
-		err = ext4_journal_get_write_access(handle, bh);
-		if (err)
-			goto unlock;
-	}
-
-	zero_user(page, offset, length);
-
-	BUFFER_TRACE(bh, "zeroed end of block");
-
-	err = 0;
-	if (ext4_should_journal_data(inode)) {
-		err = ext4_handle_dirty_metadata(handle, inode, bh);
-	} else
-		mark_buffer_dirty(bh);
-
-unlock:
-	unlock_page(page);
-	page_cache_release(page);
-	return err;
-}
-
 int ext4_can_truncate(struct inode *inode)
 {
 	if (S_ISREG(inode->i_mode))
@@ -4647,9 +4529,19 @@ int ext4_change_inode_journal_flag(struct inode *inode, int val)
 		return 0;
 	if (is_journal_aborted(journal))
 		return -EROFS;
+	/* We have to allocate physical blocks for delalloc blocks
+	 * before flushing journal. otherwise delalloc blocks can not
+	 * be allocated any more. even more truncate on delalloc blocks
+	 * could trigger BUG by flushing delalloc blocks in journal.
+	 * There is no delalloc block in non-journal data mode.
+	 */
+	if (val && test_opt(inode->i_sb, DELALLOC)) {
+		err = ext4_alloc_da_blocks(inode);
+		if (err < 0)
+			return err;
+	}
 
 	jbd2_journal_lock_updates(journal);
-	jbd2_journal_flush(journal);
 
 	/*
 	 * OK, there are no updates running now, and all cached data is
@@ -4661,8 +4553,10 @@ int ext4_change_inode_journal_flag(struct inode *inode, int val)
 
 	if (val)
 		ext4_set_inode_flag(inode, EXT4_INODE_JOURNAL_DATA);
-	else
+	else {
+		jbd2_journal_flush(journal);
 		ext4_clear_inode_flag(inode, EXT4_INODE_JOURNAL_DATA);
+	}
 	ext4_set_aops(inode);
 
 	jbd2_journal_unlock_updates(journal);
diff --git a/fs/ext4/ioctl.c b/fs/ext4/ioctl.c
index d37b3bb2a3b8..6eee25591b81 100644
--- a/fs/ext4/ioctl.c
+++ b/fs/ext4/ioctl.c
@@ -18,6 +18,8 @@
 #include "ext4_jbd2.h"
 #include "ext4.h"
 
+#define MAX_32_NUM ((((unsigned long long) 1) << 32) - 1)
+
 long ext4_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
 {
 	struct inode *inode = filp->f_dentry->d_inode;
@@ -158,10 +160,11 @@ flags_out:
 			goto setversion_out;
 		}
 
+		mutex_lock(&inode->i_mutex);
 		handle = ext4_journal_start(inode, 1);
 		if (IS_ERR(handle)) {
 			err = PTR_ERR(handle);
-			goto setversion_out;
+			goto unlock_out;
 		}
 		err = ext4_reserve_inode_write(handle, inode, &iloc);
 		if (err == 0) {
@@ -170,6 +173,9 @@ flags_out:
 			err = ext4_mark_iloc_dirty(handle, inode, &iloc);
 		}
 		ext4_journal_stop(handle);
+
+unlock_out:
+		mutex_unlock(&inode->i_mutex);
 setversion_out:
 		mnt_drop_write_file(filp);
 		return err;
@@ -182,19 +188,22 @@ setversion_out:
 		if (err)
 			return err;
 
-		if (get_user(n_blocks_count, (__u32 __user *)arg))
-			return -EFAULT;
+		if (get_user(n_blocks_count, (__u32 __user *)arg)) {
+			err = -EFAULT;
+			goto group_extend_out;
+		}
 
 		if (EXT4_HAS_RO_COMPAT_FEATURE(sb,
 			       EXT4_FEATURE_RO_COMPAT_BIGALLOC)) {
 			ext4_msg(sb, KERN_ERR,
 				 "Online resizing not supported with bigalloc");
-			return -EOPNOTSUPP;
+			err = -EOPNOTSUPP;
+			goto group_extend_out;
 		}
 
 		err = mnt_want_write_file(filp);
 		if (err)
-			return err;
+			goto group_extend_out;
 
 		err = ext4_group_extend(sb, EXT4_SB(sb)->s_es, n_blocks_count);
 		if (EXT4_SB(sb)->s_journal) {
@@ -205,8 +214,8 @@ setversion_out:
 		if (err == 0)
 			err = err2;
 		mnt_drop_write_file(filp);
+group_extend_out:
 		ext4_resize_end(sb);
-
 		return err;
 	}
 
@@ -247,8 +256,7 @@ setversion_out:
 		err = ext4_move_extents(filp, donor_filp, me.orig_start,
 					me.donor_start, me.len, &me.moved_len);
 		mnt_drop_write_file(filp);
-		if (me.moved_len > 0)
-			file_remove_suid(donor_filp);
+		mnt_drop_write(filp->f_path.mnt);
 
 		if (copy_to_user((struct move_extent __user *)arg,
 				 &me, sizeof(me)))
@@ -267,19 +275,22 @@ mext_out:
 			return err;
 
 		if (copy_from_user(&input, (struct ext4_new_group_input __user *)arg,
-				sizeof(input)))
-			return -EFAULT;
+				sizeof(input))) {
+			err = -EFAULT;
+			goto group_add_out;
+		}
 
 		if (EXT4_HAS_RO_COMPAT_FEATURE(sb,
 			       EXT4_FEATURE_RO_COMPAT_BIGALLOC)) {
 			ext4_msg(sb, KERN_ERR,
 				 "Online resizing not supported with bigalloc");
-			return -EOPNOTSUPP;
+			err = -EOPNOTSUPP;
+			goto group_add_out;
 		}
 
 		err = mnt_want_write_file(filp);
 		if (err)
-			return err;
+			goto group_add_out;
 
 		err = ext4_group_add(sb, &input);
 		if (EXT4_SB(sb)->s_journal) {
@@ -290,8 +301,8 @@ mext_out:
 		if (err == 0)
 			err = err2;
 		mnt_drop_write_file(filp);
+group_add_out:
 		ext4_resize_end(sb);
-
 		return err;
 	}
 
@@ -331,6 +342,60 @@ mext_out:
 		return err;
 	}
 
+	case EXT4_IOC_RESIZE_FS: {
+		ext4_fsblk_t n_blocks_count;
+		struct super_block *sb = inode->i_sb;
+		int err = 0, err2 = 0;
+
+		if (EXT4_HAS_RO_COMPAT_FEATURE(sb,
+			       EXT4_FEATURE_RO_COMPAT_BIGALLOC)) {
+			ext4_msg(sb, KERN_ERR,
+				 "Online resizing not (yet) supported with bigalloc");
+			return -EOPNOTSUPP;
+		}
+
+		if (EXT4_HAS_INCOMPAT_FEATURE(sb,
+			       EXT4_FEATURE_INCOMPAT_META_BG)) {
+			ext4_msg(sb, KERN_ERR,
+				 "Online resizing not (yet) supported with meta_bg");
+			return -EOPNOTSUPP;
+		}
+
+		if (copy_from_user(&n_blocks_count, (__u64 __user *)arg,
+				   sizeof(__u64))) {
+			return -EFAULT;
+		}
+
+		if (n_blocks_count > MAX_32_NUM &&
+		    !EXT4_HAS_INCOMPAT_FEATURE(sb,
+					       EXT4_FEATURE_INCOMPAT_64BIT)) {
+			ext4_msg(sb, KERN_ERR,
+				 "File system only supports 32-bit block numbers");
+			return -EOPNOTSUPP;
+		}
+
+		err = ext4_resize_begin(sb);
+		if (err)
+			return err;
+
+		err = mnt_want_write(filp->f_path.mnt);
+		if (err)
+			goto resizefs_out;
+
+		err = ext4_resize_fs(sb, n_blocks_count);
+		if (EXT4_SB(sb)->s_journal) {
+			jbd2_journal_lock_updates(EXT4_SB(sb)->s_journal);
+			err2 = jbd2_journal_flush(EXT4_SB(sb)->s_journal);
+			jbd2_journal_unlock_updates(EXT4_SB(sb)->s_journal);
+		}
+		if (err == 0)
+			err = err2;
+		mnt_drop_write(filp->f_path.mnt);
+resizefs_out:
+		ext4_resize_end(sb);
+		return err;
+	}
+
 	case FITRIM:
 	{
 		struct request_queue *q = bdev_get_queue(sb->s_bdev);
@@ -429,6 +494,7 @@ long ext4_compat_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 	}
 	case EXT4_IOC_MOVE_EXT:
 	case FITRIM:
+	case EXT4_IOC_RESIZE_FS:
 		break;
 	default:
 		return -ENOIOCTLCMD;
diff --git a/fs/ext4/mballoc.c b/fs/ext4/mballoc.c
index e2d8be8f28bf..cb990b21c698 100644
--- a/fs/ext4/mballoc.c
+++ b/fs/ext4/mballoc.c
@@ -3671,7 +3671,7 @@ ext4_mb_release_group_pa(struct ext4_buddy *e4b,
 	ext4_group_t group;
 	ext4_grpblk_t bit;
 
-	trace_ext4_mb_release_group_pa(pa);
+	trace_ext4_mb_release_group_pa(sb, pa);
 	BUG_ON(pa->pa_deleted == 0);
 	ext4_get_group_no_and_offset(sb, pa->pa_pstart, &group, &bit);
 	BUG_ON(group != e4b->bd_group && pa->pa_len != 0);
diff --git a/fs/ext4/migrate.c b/fs/ext4/migrate.c
index 16ac228dbec6..e7d6bb0acfa6 100644
--- a/fs/ext4/migrate.c
+++ b/fs/ext4/migrate.c
@@ -12,7 +12,6 @@
  *
  */
 
-#include <linux/module.h>
 #include <linux/slab.h>
 #include "ext4_jbd2.h"
 
diff --git a/fs/ext4/namei.c b/fs/ext4/namei.c
index 86edc45b52a4..2043f482375d 100644
--- a/fs/ext4/namei.c
+++ b/fs/ext4/namei.c
@@ -2315,7 +2315,7 @@ retry:
 			err = PTR_ERR(handle);
 			goto err_drop_inode;
 		}
-		inc_nlink(inode);
+		set_nlink(inode, 1);
 		err = ext4_orphan_del(handle, inode);
 		if (err) {
 			ext4_journal_stop(handle);
diff --git a/fs/ext4/page-io.c b/fs/ext4/page-io.c
index 7e106c810c62..475851896518 100644
--- a/fs/ext4/page-io.c
+++ b/fs/ext4/page-io.c
@@ -6,7 +6,6 @@
  * Written by Theodore Ts'o, 2010.
  */
 
-#include <linux/module.h>
 #include <linux/fs.h>
 #include <linux/time.h>
 #include <linux/jbd2.h>
diff --git a/fs/ext4/resize.c b/fs/ext4/resize.c
index 996780ab4f4e..f9d948f0eb86 100644
--- a/fs/ext4/resize.c
+++ b/fs/ext4/resize.c
@@ -134,6 +134,172 @@ static int verify_group_input(struct super_block *sb,
 	return err;
 }
 
+/*
+ * ext4_new_flex_group_data is used by 64bit-resize interface to add a flex
+ * group each time.
+ */
+struct ext4_new_flex_group_data {
+	struct ext4_new_group_data *groups;	/* new_group_data for groups
+						   in the flex group */
+	__u16 *bg_flags;			/* block group flags of groups
+						   in @groups */
+	ext4_group_t count;			/* number of groups in @groups
+						 */
+};
+
+/*
+ * alloc_flex_gd() allocates a ext4_new_flex_group_data with size of
+ * @flexbg_size.
+ *
+ * Returns NULL on failure otherwise address of the allocated structure.
+ */
+static struct ext4_new_flex_group_data *alloc_flex_gd(unsigned long flexbg_size)
+{
+	struct ext4_new_flex_group_data *flex_gd;
+
+	flex_gd = kmalloc(sizeof(*flex_gd), GFP_NOFS);
+	if (flex_gd == NULL)
+		goto out3;
+
+	flex_gd->count = flexbg_size;
+
+	flex_gd->groups = kmalloc(sizeof(struct ext4_new_group_data) *
+				  flexbg_size, GFP_NOFS);
+	if (flex_gd->groups == NULL)
+		goto out2;
+
+	flex_gd->bg_flags = kmalloc(flexbg_size * sizeof(__u16), GFP_NOFS);
+	if (flex_gd->bg_flags == NULL)
+		goto out1;
+
+	return flex_gd;
+
+out1:
+	kfree(flex_gd->groups);
+out2:
+	kfree(flex_gd);
+out3:
+	return NULL;
+}
+
+static void free_flex_gd(struct ext4_new_flex_group_data *flex_gd)
+{
+	kfree(flex_gd->bg_flags);
+	kfree(flex_gd->groups);
+	kfree(flex_gd);
+}
+
+/*
+ * ext4_alloc_group_tables() allocates block bitmaps, inode bitmaps
+ * and inode tables for a flex group.
+ *
+ * This function is used by 64bit-resize.  Note that this function allocates
+ * group tables from the 1st group of groups contained by @flexgd, which may
+ * be a partial of a flex group.
+ *
+ * @sb: super block of fs to which the groups belongs
+ */
+static void ext4_alloc_group_tables(struct super_block *sb,
+				struct ext4_new_flex_group_data *flex_gd,
+				int flexbg_size)
+{
+	struct ext4_new_group_data *group_data = flex_gd->groups;
+	struct ext4_super_block *es = EXT4_SB(sb)->s_es;
+	ext4_fsblk_t start_blk;
+	ext4_fsblk_t last_blk;
+	ext4_group_t src_group;
+	ext4_group_t bb_index = 0;
+	ext4_group_t ib_index = 0;
+	ext4_group_t it_index = 0;
+	ext4_group_t group;
+	ext4_group_t last_group;
+	unsigned overhead;
+
+	BUG_ON(flex_gd->count == 0 || group_data == NULL);
+
+	src_group = group_data[0].group;
+	last_group  = src_group + flex_gd->count - 1;
+
+	BUG_ON((flexbg_size > 1) && ((src_group & ~(flexbg_size - 1)) !=
+	       (last_group & ~(flexbg_size - 1))));
+next_group:
+	group = group_data[0].group;
+	start_blk = ext4_group_first_block_no(sb, src_group);
+	last_blk = start_blk + group_data[src_group - group].blocks_count;
+
+	overhead = ext4_bg_has_super(sb, src_group) ?
+		   (1 + ext4_bg_num_gdb(sb, src_group) +
+		    le16_to_cpu(es->s_reserved_gdt_blocks)) : 0;
+
+	start_blk += overhead;
+
+	BUG_ON(src_group >= group_data[0].group + flex_gd->count);
+	/* We collect contiguous blocks as much as possible. */
+	src_group++;
+	for (; src_group <= last_group; src_group++)
+		if (!ext4_bg_has_super(sb, src_group))
+			last_blk += group_data[src_group - group].blocks_count;
+		else
+			break;
+
+	/* Allocate block bitmaps */
+	for (; bb_index < flex_gd->count; bb_index++) {
+		if (start_blk >= last_blk)
+			goto next_group;
+		group_data[bb_index].block_bitmap = start_blk++;
+		ext4_get_group_no_and_offset(sb, start_blk - 1, &group, NULL);
+		group -= group_data[0].group;
+		group_data[group].free_blocks_count--;
+		if (flexbg_size > 1)
+			flex_gd->bg_flags[group] &= ~EXT4_BG_BLOCK_UNINIT;
+	}
+
+	/* Allocate inode bitmaps */
+	for (; ib_index < flex_gd->count; ib_index++) {
+		if (start_blk >= last_blk)
+			goto next_group;
+		group_data[ib_index].inode_bitmap = start_blk++;
+		ext4_get_group_no_and_offset(sb, start_blk - 1, &group, NULL);
+		group -= group_data[0].group;
+		group_data[group].free_blocks_count--;
+		if (flexbg_size > 1)
+			flex_gd->bg_flags[group] &= ~EXT4_BG_BLOCK_UNINIT;
+	}
+
+	/* Allocate inode tables */
+	for (; it_index < flex_gd->count; it_index++) {
+		if (start_blk + EXT4_SB(sb)->s_itb_per_group > last_blk)
+			goto next_group;
+		group_data[it_index].inode_table = start_blk;
+		ext4_get_group_no_and_offset(sb, start_blk, &group, NULL);
+		group -= group_data[0].group;
+		group_data[group].free_blocks_count -=
+					EXT4_SB(sb)->s_itb_per_group;
+		if (flexbg_size > 1)
+			flex_gd->bg_flags[group] &= ~EXT4_BG_BLOCK_UNINIT;
+
+		start_blk += EXT4_SB(sb)->s_itb_per_group;
+	}
+
+	if (test_opt(sb, DEBUG)) {
+		int i;
+		group = group_data[0].group;
+
+		printk(KERN_DEBUG "EXT4-fs: adding a flex group with "
+		       "%d groups, flexbg size is %d:\n", flex_gd->count,
+		       flexbg_size);
+
+		for (i = 0; i < flex_gd->count; i++) {
+			printk(KERN_DEBUG "adding %s group %u: %u "
+			       "blocks (%d free)\n",
+			       ext4_bg_has_super(sb, group + i) ? "normal" :
+			       "no-super", group + i,
+			       group_data[i].blocks_count,
+			       group_data[i].free_blocks_count);
+		}
+	}
+}
+
 static struct buffer_head *bclean(handle_t *handle, struct super_block *sb,
 				  ext4_fsblk_t blk)
 {
@@ -179,131 +345,250 @@ static int extend_or_restart_transaction(handle_t *handle, int thresh)
 }
 
 /*
- * Set up the block and inode bitmaps, and the inode table for the new group.
+ * set_flexbg_block_bitmap() mark @count blocks starting from @block used.
+ *
+ * Helper function for ext4_setup_new_group_blocks() which set .
+ *
+ * @sb: super block
+ * @handle: journal handle
+ * @flex_gd: flex group data
+ */
+static int set_flexbg_block_bitmap(struct super_block *sb, handle_t *handle,
+			struct ext4_new_flex_group_data *flex_gd,
+			ext4_fsblk_t block, ext4_group_t count)
+{
+	ext4_group_t count2;
+
+	ext4_debug("mark blocks [%llu/%u] used\n", block, count);
+	for (count2 = count; count > 0; count -= count2, block += count2) {
+		ext4_fsblk_t start;
+		struct buffer_head *bh;
+		ext4_group_t group;
+		int err;
+
+		ext4_get_group_no_and_offset(sb, block, &group, NULL);
+		start = ext4_group_first_block_no(sb, group);
+		group -= flex_gd->groups[0].group;
+
+		count2 = sb->s_blocksize * 8 - (block - start);
+		if (count2 > count)
+			count2 = count;
+
+		if (flex_gd->bg_flags[group] & EXT4_BG_BLOCK_UNINIT) {
+			BUG_ON(flex_gd->count > 1);
+			continue;
+		}
+
+		err = extend_or_restart_transaction(handle, 1);
+		if (err)
+			return err;
+
+		bh = sb_getblk(sb, flex_gd->groups[group].block_bitmap);
+		if (!bh)
+			return -EIO;
+
+		err = ext4_journal_get_write_access(handle, bh);
+		if (err)
+			return err;
+		ext4_debug("mark block bitmap %#04llx (+%llu/%u)\n", block,
+			   block - start, count2);
+		ext4_set_bits(bh->b_data, block - start, count2);
+
+		err = ext4_handle_dirty_metadata(handle, NULL, bh);
+		if (unlikely(err))
+			return err;
+		brelse(bh);
+	}
+
+	return 0;
+}
+
+/*
+ * Set up the block and inode bitmaps, and the inode table for the new groups.
  * This doesn't need to be part of the main transaction, since we are only
  * changing blocks outside the actual filesystem.  We still do journaling to
  * ensure the recovery is correct in case of a failure just after resize.
  * If any part of this fails, we simply abort the resize.
+ *
+ * setup_new_flex_group_blocks handles a flex group as follow:
+ *  1. copy super block and GDT, and initialize group tables if necessary.
+ *     In this step, we only set bits in blocks bitmaps for blocks taken by
+ *     super block and GDT.
+ *  2. allocate group tables in block bitmaps, that is, set bits in block
+ *     bitmap for blocks taken by group tables.
  */
-static int setup_new_group_blocks(struct super_block *sb,
-				  struct ext4_new_group_data *input)
+static int setup_new_flex_group_blocks(struct super_block *sb,
+				struct ext4_new_flex_group_data *flex_gd)
 {
+	int group_table_count[] = {1, 1, EXT4_SB(sb)->s_itb_per_group};
+	ext4_fsblk_t start;
+	ext4_fsblk_t block;
 	struct ext4_sb_info *sbi = EXT4_SB(sb);
-	ext4_fsblk_t start = ext4_group_first_block_no(sb, input->group);
-	int reserved_gdb = ext4_bg_has_super(sb, input->group) ?
-		le16_to_cpu(sbi->s_es->s_reserved_gdt_blocks) : 0;
-	unsigned long gdblocks = ext4_bg_num_gdb(sb, input->group);
-	struct buffer_head *bh;
+	struct ext4_super_block *es = sbi->s_es;
+	struct ext4_new_group_data *group_data = flex_gd->groups;
+	__u16 *bg_flags = flex_gd->bg_flags;
 	handle_t *handle;
-	ext4_fsblk_t block;
-	ext4_grpblk_t bit;
-	int i;
-	int err = 0, err2;
+	ext4_group_t group, count;
+	struct buffer_head *bh = NULL;
+	int reserved_gdb, i, j, err = 0, err2;
+
+	BUG_ON(!flex_gd->count || !group_data ||
+	       group_data[0].group != sbi->s_groups_count);
+
+	reserved_gdb = le16_to_cpu(es->s_reserved_gdt_blocks);
 
 	/* This transaction may be extended/restarted along the way */
 	handle = ext4_journal_start_sb(sb, EXT4_MAX_TRANS_DATA);
-
 	if (IS_ERR(handle))
 		return PTR_ERR(handle);
 
-	BUG_ON(input->group != sbi->s_groups_count);
+	group = group_data[0].group;
+	for (i = 0; i < flex_gd->count; i++, group++) {
+		unsigned long gdblocks;
 
-	/* Copy all of the GDT blocks into the backup in this group */
-	for (i = 0, bit = 1, block = start + 1;
-	     i < gdblocks; i++, block++, bit++) {
-		struct buffer_head *gdb;
+		gdblocks = ext4_bg_num_gdb(sb, group);
+		start = ext4_group_first_block_no(sb, group);
 
-		ext4_debug("update backup group %#04llx (+%d)\n", block, bit);
-		err = extend_or_restart_transaction(handle, 1);
-		if (err)
-			goto exit_journal;
+		/* Copy all of the GDT blocks into the backup in this group */
+		for (j = 0, block = start + 1; j < gdblocks; j++, block++) {
+			struct buffer_head *gdb;
 
-		gdb = sb_getblk(sb, block);
-		if (!gdb) {
-			err = -EIO;
-			goto exit_journal;
-		}
-		if ((err = ext4_journal_get_write_access(handle, gdb))) {
+			ext4_debug("update backup group %#04llx\n", block);
+			err = extend_or_restart_transaction(handle, 1);
+			if (err)
+				goto out;
+
+			gdb = sb_getblk(sb, block);
+			if (!gdb) {
+				err = -EIO;
+				goto out;
+			}
+
+			err = ext4_journal_get_write_access(handle, gdb);
+			if (err) {
+				brelse(gdb);
+				goto out;
+			}
+			memcpy(gdb->b_data, sbi->s_group_desc[j]->b_data,
+			       gdb->b_size);
+			set_buffer_uptodate(gdb);
+
+			err = ext4_handle_dirty_metadata(handle, NULL, gdb);
+			if (unlikely(err)) {
+				brelse(gdb);
+				goto out;
+			}
 			brelse(gdb);
-			goto exit_journal;
 		}
-		memcpy(gdb->b_data, sbi->s_group_desc[i]->b_data, gdb->b_size);
-		set_buffer_uptodate(gdb);
-		err = ext4_handle_dirty_metadata(handle, NULL, gdb);
-		if (unlikely(err)) {
-			brelse(gdb);
-			goto exit_journal;
+
+		/* Zero out all of the reserved backup group descriptor
+		 * table blocks
+		 */
+		if (ext4_bg_has_super(sb, group)) {
+			err = sb_issue_zeroout(sb, gdblocks + start + 1,
+					reserved_gdb, GFP_NOFS);
+			if (err)
+				goto out;
 		}
-		brelse(gdb);
-	}
 
-	/* Zero out all of the reserved backup group descriptor table blocks */
-	ext4_debug("clear inode table blocks %#04llx -> %#04lx\n",
-			block, sbi->s_itb_per_group);
-	err = sb_issue_zeroout(sb, gdblocks + start + 1, reserved_gdb,
-			       GFP_NOFS);
-	if (err)
-		goto exit_journal;
+		/* Initialize group tables of the grop @group */
+		if (!(bg_flags[i] & EXT4_BG_INODE_ZEROED))
+			goto handle_bb;
 
-	err = extend_or_restart_transaction(handle, 2);
-	if (err)
-		goto exit_journal;
+		/* Zero out all of the inode table blocks */
+		block = group_data[i].inode_table;
+		ext4_debug("clear inode table blocks %#04llx -> %#04lx\n",
+			   block, sbi->s_itb_per_group);
+		err = sb_issue_zeroout(sb, block, sbi->s_itb_per_group,
+				       GFP_NOFS);
+		if (err)
+			goto out;
 
-	bh = bclean(handle, sb, input->block_bitmap);
-	if (IS_ERR(bh)) {
-		err = PTR_ERR(bh);
-		goto exit_journal;
-	}
+handle_bb:
+		if (bg_flags[i] & EXT4_BG_BLOCK_UNINIT)
+			goto handle_ib;
 
-	if (ext4_bg_has_super(sb, input->group)) {
-		ext4_debug("mark backup group tables %#04llx (+0)\n", start);
-		ext4_set_bits(bh->b_data, 0, gdblocks + reserved_gdb + 1);
-	}
+		/* Initialize block bitmap of the @group */
+		block = group_data[i].block_bitmap;
+		err = extend_or_restart_transaction(handle, 1);
+		if (err)
+			goto out;
 
-	ext4_debug("mark block bitmap %#04llx (+%llu)\n", input->block_bitmap,
-		   input->block_bitmap - start);
-	ext4_set_bit(input->block_bitmap - start, bh->b_data);
-	ext4_debug("mark inode bitmap %#04llx (+%llu)\n", input->inode_bitmap,
-		   input->inode_bitmap - start);
-	ext4_set_bit(input->inode_bitmap - start, bh->b_data);
-
-	/* Zero out all of the inode table blocks */
-	block = input->inode_table;
-	ext4_debug("clear inode table blocks %#04llx -> %#04lx\n",
-			block, sbi->s_itb_per_group);
-	err = sb_issue_zeroout(sb, block, sbi->s_itb_per_group, GFP_NOFS);
-	if (err)
-		goto exit_bh;
-	ext4_set_bits(bh->b_data, input->inode_table - start,
-		      sbi->s_itb_per_group);
+		bh = bclean(handle, sb, block);
+		if (IS_ERR(bh)) {
+			err = PTR_ERR(bh);
+			goto out;
+		}
+		if (ext4_bg_has_super(sb, group)) {
+			ext4_debug("mark backup superblock %#04llx (+0)\n",
+				   start);
+			ext4_set_bits(bh->b_data, 0, gdblocks + reserved_gdb +
+						     1);
+		}
+		ext4_mark_bitmap_end(group_data[i].blocks_count,
+				     sb->s_blocksize * 8, bh->b_data);
+		err = ext4_handle_dirty_metadata(handle, NULL, bh);
+		if (err)
+			goto out;
+		brelse(bh);
 
+handle_ib:
+		if (bg_flags[i] & EXT4_BG_INODE_UNINIT)
+			continue;
 
-	ext4_mark_bitmap_end(input->blocks_count, sb->s_blocksize * 8,
-			     bh->b_data);
-	err = ext4_handle_dirty_metadata(handle, NULL, bh);
-	if (unlikely(err)) {
-		ext4_std_error(sb, err);
-		goto exit_bh;
+		/* Initialize inode bitmap of the @group */
+		block = group_data[i].inode_bitmap;
+		err = extend_or_restart_transaction(handle, 1);
+		if (err)
+			goto out;
+		/* Mark unused entries in inode bitmap used */
+		bh = bclean(handle, sb, block);
+		if (IS_ERR(bh)) {
+			err = PTR_ERR(bh);
+			goto out;
+		}
+
+		ext4_mark_bitmap_end(EXT4_INODES_PER_GROUP(sb),
+				     sb->s_blocksize * 8, bh->b_data);
+		err = ext4_handle_dirty_metadata(handle, NULL, bh);
+		if (err)
+			goto out;
+		brelse(bh);
 	}
-	brelse(bh);
-	/* Mark unused entries in inode bitmap used */
-	ext4_debug("clear inode bitmap %#04llx (+%llu)\n",
-		   input->inode_bitmap, input->inode_bitmap - start);
-	if (IS_ERR(bh = bclean(handle, sb, input->inode_bitmap))) {
-		err = PTR_ERR(bh);
-		goto exit_journal;
+	bh = NULL;
+
+	/* Mark group tables in block bitmap */
+	for (j = 0; j < GROUP_TABLE_COUNT; j++) {
+		count = group_table_count[j];
+		start = (&group_data[0].block_bitmap)[j];
+		block = start;
+		for (i = 1; i < flex_gd->count; i++) {
+			block += group_table_count[j];
+			if (block == (&group_data[i].block_bitmap)[j]) {
+				count += group_table_count[j];
+				continue;
+			}
+			err = set_flexbg_block_bitmap(sb, handle,
+						flex_gd, start, count);
+			if (err)
+				goto out;
+			count = group_table_count[j];
+			start = group_data[i].block_bitmap;
+			block = start;
+		}
+
+		if (count) {
+			err = set_flexbg_block_bitmap(sb, handle,
+						flex_gd, start, count);
+			if (err)
+				goto out;
+		}
 	}
 
-	ext4_mark_bitmap_end(EXT4_INODES_PER_GROUP(sb), sb->s_blocksize * 8,
-			     bh->b_data);
-	err = ext4_handle_dirty_metadata(handle, NULL, bh);
-	if (unlikely(err))
-		ext4_std_error(sb, err);
-exit_bh:
+out:
 	brelse(bh);
-
-exit_journal:
-	if ((err2 = ext4_journal_stop(handle)) && !err)
+	err2 = ext4_journal_stop(handle);
+	if (err2 && !err)
 		err = err2;
 
 	return err;
@@ -351,10 +636,10 @@ static unsigned ext4_list_backups(struct super_block *sb, unsigned *three,
  * groups in current filesystem that have BACKUPS, or -ve error code.
  */
 static int verify_reserved_gdb(struct super_block *sb,
+			       ext4_group_t end,
 			       struct buffer_head *primary)
 {
 	const ext4_fsblk_t blk = primary->b_blocknr;
-	const ext4_group_t end = EXT4_SB(sb)->s_groups_count;
 	unsigned three = 1;
 	unsigned five = 5;
 	unsigned seven = 7;
@@ -429,7 +714,7 @@ static int add_new_gdb(handle_t *handle, struct inode *inode,
 	if (!gdb_bh)
 		return -EIO;
 
-	gdbackups = verify_reserved_gdb(sb, gdb_bh);
+	gdbackups = verify_reserved_gdb(sb, group, gdb_bh);
 	if (gdbackups < 0) {
 		err = gdbackups;
 		goto exit_bh;
@@ -592,7 +877,8 @@ static int reserve_backup_gdb(handle_t *handle, struct inode *inode,
 			err = -EIO;
 			goto exit_bh;
 		}
-		if ((gdbackups = verify_reserved_gdb(sb, primary[res])) < 0) {
+		gdbackups = verify_reserved_gdb(sb, group, primary[res]);
+		if (gdbackups < 0) {
 			brelse(primary[res]);
 			err = gdbackups;
 			goto exit_bh;
@@ -735,6 +1021,348 @@ exit_err:
 	}
 }
 
+/*
+ * ext4_add_new_descs() adds @count group descriptor of groups
+ * starting at @group
+ *
+ * @handle: journal handle
+ * @sb: super block
+ * @group: the group no. of the first group desc to be added
+ * @resize_inode: the resize inode
+ * @count: number of group descriptors to be added
+ */
+static int ext4_add_new_descs(handle_t *handle, struct super_block *sb,
+			      ext4_group_t group, struct inode *resize_inode,
+			      ext4_group_t count)
+{
+	struct ext4_sb_info *sbi = EXT4_SB(sb);
+	struct ext4_super_block *es = sbi->s_es;
+	struct buffer_head *gdb_bh;
+	int i, gdb_off, gdb_num, err = 0;
+
+	for (i = 0; i < count; i++, group++) {
+		int reserved_gdb = ext4_bg_has_super(sb, group) ?
+			le16_to_cpu(es->s_reserved_gdt_blocks) : 0;
+
+		gdb_off = group % EXT4_DESC_PER_BLOCK(sb);
+		gdb_num = group / EXT4_DESC_PER_BLOCK(sb);
+
+		/*
+		 * We will only either add reserved group blocks to a backup group
+		 * or remove reserved blocks for the first group in a new group block.
+		 * Doing both would be mean more complex code, and sane people don't
+		 * use non-sparse filesystems anymore.  This is already checked above.
+		 */
+		if (gdb_off) {
+			gdb_bh = sbi->s_group_desc[gdb_num];
+			err = ext4_journal_get_write_access(handle, gdb_bh);
+
+			if (!err && reserved_gdb && ext4_bg_num_gdb(sb, group))
+				err = reserve_backup_gdb(handle, resize_inode, group);
+		} else
+			err = add_new_gdb(handle, resize_inode, group);
+		if (err)
+			break;
+	}
+	return err;
+}
+
+/*
+ * ext4_setup_new_descs() will set up the group descriptor descriptors of a flex bg
+ */
+static int ext4_setup_new_descs(handle_t *handle, struct super_block *sb,
+				struct ext4_new_flex_group_data *flex_gd)
+{
+	struct ext4_new_group_data	*group_data = flex_gd->groups;
+	struct ext4_group_desc		*gdp;
+	struct ext4_sb_info		*sbi = EXT4_SB(sb);
+	struct buffer_head		*gdb_bh;
+	ext4_group_t			group;
+	__u16				*bg_flags = flex_gd->bg_flags;
+	int				i, gdb_off, gdb_num, err = 0;
+	
+
+	for (i = 0; i < flex_gd->count; i++, group_data++, bg_flags++) {
+		group = group_data->group;
+
+		gdb_off = group % EXT4_DESC_PER_BLOCK(sb);
+		gdb_num = group / EXT4_DESC_PER_BLOCK(sb);
+
+		/*
+		 * get_write_access() has been called on gdb_bh by ext4_add_new_desc().
+		 */
+		gdb_bh = sbi->s_group_desc[gdb_num];
+		/* Update group descriptor block for new group */
+		gdp = (struct ext4_group_desc *)((char *)gdb_bh->b_data +
+						 gdb_off * EXT4_DESC_SIZE(sb));
+
+		memset(gdp, 0, EXT4_DESC_SIZE(sb));
+		ext4_block_bitmap_set(sb, gdp, group_data->block_bitmap);
+		ext4_inode_bitmap_set(sb, gdp, group_data->inode_bitmap);
+		ext4_inode_table_set(sb, gdp, group_data->inode_table);
+		ext4_free_group_clusters_set(sb, gdp,
+					     EXT4_B2C(sbi, group_data->free_blocks_count));
+		ext4_free_inodes_set(sb, gdp, EXT4_INODES_PER_GROUP(sb));
+		gdp->bg_flags = cpu_to_le16(*bg_flags);
+		gdp->bg_checksum = ext4_group_desc_csum(sbi, group, gdp);
+
+		err = ext4_handle_dirty_metadata(handle, NULL, gdb_bh);
+		if (unlikely(err)) {
+			ext4_std_error(sb, err);
+			break;
+		}
+
+		/*
+		 * We can allocate memory for mb_alloc based on the new group
+		 * descriptor
+		 */
+		err = ext4_mb_add_groupinfo(sb, group, gdp);
+		if (err)
+			break;
+	}
+	return err;
+}
+
+/*
+ * ext4_update_super() updates the super block so that the newly added
+ * groups can be seen by the filesystem.
+ *
+ * @sb: super block
+ * @flex_gd: new added groups
+ */
+static void ext4_update_super(struct super_block *sb,
+			     struct ext4_new_flex_group_data *flex_gd)
+{
+	ext4_fsblk_t blocks_count = 0;
+	ext4_fsblk_t free_blocks = 0;
+	ext4_fsblk_t reserved_blocks = 0;
+	struct ext4_new_group_data *group_data = flex_gd->groups;
+	struct ext4_sb_info *sbi = EXT4_SB(sb);
+	struct ext4_super_block *es = sbi->s_es;
+	int i;
+
+	BUG_ON(flex_gd->count == 0 || group_data == NULL);
+	/*
+	 * Make the new blocks and inodes valid next.  We do this before
+	 * increasing the group count so that once the group is enabled,
+	 * all of its blocks and inodes are already valid.
+	 *
+	 * We always allocate group-by-group, then block-by-block or
+	 * inode-by-inode within a group, so enabling these
+	 * blocks/inodes before the group is live won't actually let us
+	 * allocate the new space yet.
+	 */
+	for (i = 0; i < flex_gd->count; i++) {
+		blocks_count += group_data[i].blocks_count;
+		free_blocks += group_data[i].free_blocks_count;
+	}
+
+	reserved_blocks = ext4_r_blocks_count(es) * 100;
+	do_div(reserved_blocks, ext4_blocks_count(es));
+	reserved_blocks *= blocks_count;
+	do_div(reserved_blocks, 100);
+
+	ext4_blocks_count_set(es, ext4_blocks_count(es) + blocks_count);
+	le32_add_cpu(&es->s_inodes_count, EXT4_INODES_PER_GROUP(sb) *
+		     flex_gd->count);
+
+	/*
+	 * We need to protect s_groups_count against other CPUs seeing
+	 * inconsistent state in the superblock.
+	 *
+	 * The precise rules we use are:
+	 *
+	 * * Writers must perform a smp_wmb() after updating all
+	 *   dependent data and before modifying the groups count
+	 *
+	 * * Readers must perform an smp_rmb() after reading the groups
+	 *   count and before reading any dependent data.
+	 *
+	 * NB. These rules can be relaxed when checking the group count
+	 * while freeing data, as we can only allocate from a block
+	 * group after serialising against the group count, and we can
+	 * only then free after serialising in turn against that
+	 * allocation.
+	 */
+	smp_wmb();
+
+	/* Update the global fs size fields */
+	sbi->s_groups_count += flex_gd->count;
+
+	/* Update the reserved block counts only once the new group is
+	 * active. */
+	ext4_r_blocks_count_set(es, ext4_r_blocks_count(es) +
+				reserved_blocks);
+
+	/* Update the free space counts */
+	percpu_counter_add(&sbi->s_freeclusters_counter,
+			   EXT4_B2C(sbi, free_blocks));
+	percpu_counter_add(&sbi->s_freeinodes_counter,
+			   EXT4_INODES_PER_GROUP(sb) * flex_gd->count);
+
+	if (EXT4_HAS_INCOMPAT_FEATURE(sb,
+				      EXT4_FEATURE_INCOMPAT_FLEX_BG) &&
+	    sbi->s_log_groups_per_flex) {
+		ext4_group_t flex_group;
+		flex_group = ext4_flex_group(sbi, group_data[0].group);
+		atomic_add(EXT4_B2C(sbi, free_blocks),
+			   &sbi->s_flex_groups[flex_group].free_clusters);
+		atomic_add(EXT4_INODES_PER_GROUP(sb) * flex_gd->count,
+			   &sbi->s_flex_groups[flex_group].free_inodes);
+	}
+
+	if (test_opt(sb, DEBUG))
+		printk(KERN_DEBUG "EXT4-fs: added group %u:"
+		       "%llu blocks(%llu free %llu reserved)\n", flex_gd->count,
+		       blocks_count, free_blocks, reserved_blocks);
+}
+
+/* Add a flex group to an fs. Ensure we handle all possible error conditions
+ * _before_ we start modifying the filesystem, because we cannot abort the
+ * transaction and not have it write the data to disk.
+ */
+static int ext4_flex_group_add(struct super_block *sb,
+			       struct inode *resize_inode,
+			       struct ext4_new_flex_group_data *flex_gd)
+{
+	struct ext4_sb_info *sbi = EXT4_SB(sb);
+	struct ext4_super_block *es = sbi->s_es;
+	ext4_fsblk_t o_blocks_count;
+	ext4_grpblk_t last;
+	ext4_group_t group;
+	handle_t *handle;
+	unsigned reserved_gdb;
+	int err = 0, err2 = 0, credit;
+
+	BUG_ON(!flex_gd->count || !flex_gd->groups || !flex_gd->bg_flags);
+
+	reserved_gdb = le16_to_cpu(es->s_reserved_gdt_blocks);
+	o_blocks_count = ext4_blocks_count(es);
+	ext4_get_group_no_and_offset(sb, o_blocks_count, &group, &last);
+	BUG_ON(last);
+
+	err = setup_new_flex_group_blocks(sb, flex_gd);
+	if (err)
+		goto exit;
+	/*
+	 * We will always be modifying at least the superblock and  GDT
+	 * block.  If we are adding a group past the last current GDT block,
+	 * we will also modify the inode and the dindirect block.  If we
+	 * are adding a group with superblock/GDT backups  we will also
+	 * modify each of the reserved GDT dindirect blocks.
+	 */
+	credit = flex_gd->count * 4 + reserved_gdb;
+	handle = ext4_journal_start_sb(sb, credit);
+	if (IS_ERR(handle)) {
+		err = PTR_ERR(handle);
+		goto exit;
+	}
+
+	err = ext4_journal_get_write_access(handle, sbi->s_sbh);
+	if (err)
+		goto exit_journal;
+
+	group = flex_gd->groups[0].group;
+	BUG_ON(group != EXT4_SB(sb)->s_groups_count);
+	err = ext4_add_new_descs(handle, sb, group,
+				resize_inode, flex_gd->count);
+	if (err)
+		goto exit_journal;
+
+	err = ext4_setup_new_descs(handle, sb, flex_gd);
+	if (err)
+		goto exit_journal;
+
+	ext4_update_super(sb, flex_gd);
+
+	err = ext4_handle_dirty_super(handle, sb);
+
+exit_journal:
+	err2 = ext4_journal_stop(handle);
+	if (!err)
+		err = err2;
+
+	if (!err) {
+		int i;
+		update_backups(sb, sbi->s_sbh->b_blocknr, (char *)es,
+			       sizeof(struct ext4_super_block));
+		for (i = 0; i < flex_gd->count; i++, group++) {
+			struct buffer_head *gdb_bh;
+			int gdb_num;
+			gdb_num = group / EXT4_BLOCKS_PER_GROUP(sb);
+			gdb_bh = sbi->s_group_desc[gdb_num];
+			update_backups(sb, gdb_bh->b_blocknr, gdb_bh->b_data,
+				       gdb_bh->b_size);
+		}
+	}
+exit:
+	return err;
+}
+
+static int ext4_setup_next_flex_gd(struct super_block *sb,
+				    struct ext4_new_flex_group_data *flex_gd,
+				    ext4_fsblk_t n_blocks_count,
+				    unsigned long flexbg_size)
+{
+	struct ext4_super_block *es = EXT4_SB(sb)->s_es;
+	struct ext4_new_group_data *group_data = flex_gd->groups;
+	ext4_fsblk_t o_blocks_count;
+	ext4_group_t n_group;
+	ext4_group_t group;
+	ext4_group_t last_group;
+	ext4_grpblk_t last;
+	ext4_grpblk_t blocks_per_group;
+	unsigned long i;
+
+	blocks_per_group = EXT4_BLOCKS_PER_GROUP(sb);
+
+	o_blocks_count = ext4_blocks_count(es);
+
+	if (o_blocks_count == n_blocks_count)
+		return 0;
+
+	ext4_get_group_no_and_offset(sb, o_blocks_count, &group, &last);
+	BUG_ON(last);
+	ext4_get_group_no_and_offset(sb, n_blocks_count - 1, &n_group, &last);
+
+	last_group = group | (flexbg_size - 1);
+	if (last_group > n_group)
+		last_group = n_group;
+
+	flex_gd->count = last_group - group + 1;
+
+	for (i = 0; i < flex_gd->count; i++) {
+		int overhead;
+
+		group_data[i].group = group + i;
+		group_data[i].blocks_count = blocks_per_group;
+		overhead = ext4_bg_has_super(sb, group + i) ?
+			   (1 + ext4_bg_num_gdb(sb, group + i) +
+			    le16_to_cpu(es->s_reserved_gdt_blocks)) : 0;
+		group_data[i].free_blocks_count = blocks_per_group - overhead;
+		if (EXT4_HAS_RO_COMPAT_FEATURE(sb,
+					       EXT4_FEATURE_RO_COMPAT_GDT_CSUM))
+			flex_gd->bg_flags[i] = EXT4_BG_BLOCK_UNINIT |
+					       EXT4_BG_INODE_UNINIT;
+		else
+			flex_gd->bg_flags[i] = EXT4_BG_INODE_ZEROED;
+	}
+
+	if (last_group == n_group &&
+	    EXT4_HAS_RO_COMPAT_FEATURE(sb,
+				       EXT4_FEATURE_RO_COMPAT_GDT_CSUM))
+		/* We need to initialize block bitmap of last group. */
+		flex_gd->bg_flags[i - 1] &= ~EXT4_BG_BLOCK_UNINIT;
+
+	if ((last_group == n_group) && (last != blocks_per_group - 1)) {
+		group_data[i - 1].blocks_count = last + 1;
+		group_data[i - 1].free_blocks_count -= blocks_per_group-
+					last - 1;
+	}
+
+	return 1;
+}
+
 /* Add group descriptor data to an existing or new group descriptor block.
  * Ensure we handle all possible error conditions _before_ we start modifying
  * the filesystem, because we cannot abort the transaction and not have it
@@ -750,16 +1378,15 @@ exit_err:
  */
 int ext4_group_add(struct super_block *sb, struct ext4_new_group_data *input)
 {
+	struct ext4_new_flex_group_data flex_gd;
 	struct ext4_sb_info *sbi = EXT4_SB(sb);
 	struct ext4_super_block *es = sbi->s_es;
 	int reserved_gdb = ext4_bg_has_super(sb, input->group) ?
 		le16_to_cpu(es->s_reserved_gdt_blocks) : 0;
-	struct buffer_head *primary = NULL;
-	struct ext4_group_desc *gdp;
 	struct inode *inode = NULL;
-	handle_t *handle;
 	int gdb_off, gdb_num;
-	int err, err2;
+	int err;
+	__u16 bg_flags = 0;
 
 	gdb_num = input->group / EXT4_DESC_PER_BLOCK(sb);
 	gdb_off = input->group % EXT4_DESC_PER_BLOCK(sb);
@@ -798,175 +1425,69 @@ int ext4_group_add(struct super_block *sb, struct ext4_new_group_data *input)
 	}
 
 
-	if ((err = verify_group_input(sb, input)))
-		goto exit_put;
+	err = verify_group_input(sb, input);
+	if (err)
+		goto out;
 
-	if ((err = setup_new_group_blocks(sb, input)))
-		goto exit_put;
+	flex_gd.count = 1;
+	flex_gd.groups = input;
+	flex_gd.bg_flags = &bg_flags;
+	err = ext4_flex_group_add(sb, inode, &flex_gd);
+out:
+	iput(inode);
+	return err;
+} /* ext4_group_add */
 
-	/*
-	 * We will always be modifying at least the superblock and a GDT
-	 * block.  If we are adding a group past the last current GDT block,
-	 * we will also modify the inode and the dindirect block.  If we
-	 * are adding a group with superblock/GDT backups  we will also
-	 * modify each of the reserved GDT dindirect blocks.
+/*
+ * extend a group without checking assuming that checking has been done.
+ */
+static int ext4_group_extend_no_check(struct super_block *sb,
+				      ext4_fsblk_t o_blocks_count, ext4_grpblk_t add)
+{
+	struct ext4_super_block *es = EXT4_SB(sb)->s_es;
+	handle_t *handle;
+	int err = 0, err2;
+
+	/* We will update the superblock, one block bitmap, and
+	 * one group descriptor via ext4_group_add_blocks().
 	 */
-	handle = ext4_journal_start_sb(sb,
-				       ext4_bg_has_super(sb, input->group) ?
-				       3 + reserved_gdb : 4);
+	handle = ext4_journal_start_sb(sb, 3);
 	if (IS_ERR(handle)) {
 		err = PTR_ERR(handle);
-		goto exit_put;
+		ext4_warning(sb, "error %d on journal start", err);
+		return err;
 	}
 
-	if ((err = ext4_journal_get_write_access(handle, sbi->s_sbh)))
-		goto exit_journal;
-
-        /*
-         * We will only either add reserved group blocks to a backup group
-         * or remove reserved blocks for the first group in a new group block.
-         * Doing both would be mean more complex code, and sane people don't
-         * use non-sparse filesystems anymore.  This is already checked above.
-         */
-	if (gdb_off) {
-		primary = sbi->s_group_desc[gdb_num];
-		if ((err = ext4_journal_get_write_access(handle, primary)))
-			goto exit_journal;
-
-		if (reserved_gdb && ext4_bg_num_gdb(sb, input->group)) {
-			err = reserve_backup_gdb(handle, inode, input->group);
-			if (err)
-				goto exit_journal;
-		}
-	} else {
-		/*
-		 * Note that we can access new group descriptor block safely
-		 * only if add_new_gdb() succeeds.
-		 */
-		err = add_new_gdb(handle, inode, input->group);
-		if (err)
-			goto exit_journal;
-		primary = sbi->s_group_desc[gdb_num];
+	err = ext4_journal_get_write_access(handle, EXT4_SB(sb)->s_sbh);
+	if (err) {
+		ext4_warning(sb, "error %d on journal write access", err);
+		goto errout;
 	}
 
-        /*
-         * OK, now we've set up the new group.  Time to make it active.
-         *
-         * so we have to be safe wrt. concurrent accesses the group
-         * data.  So we need to be careful to set all of the relevant
-         * group descriptor data etc. *before* we enable the group.
-         *
-         * The key field here is sbi->s_groups_count: as long as
-         * that retains its old value, nobody is going to access the new
-         * group.
-         *
-         * So first we update all the descriptor metadata for the new
-         * group; then we update the total disk blocks count; then we
-         * update the groups count to enable the group; then finally we
-         * update the free space counts so that the system can start
-         * using the new disk blocks.
-         */
-
-	/* Update group descriptor block for new group */
-	gdp = (struct ext4_group_desc *)((char *)primary->b_data +
-					 gdb_off * EXT4_DESC_SIZE(sb));
-
-	memset(gdp, 0, EXT4_DESC_SIZE(sb));
-	ext4_block_bitmap_set(sb, gdp, input->block_bitmap); /* LV FIXME */
-	ext4_inode_bitmap_set(sb, gdp, input->inode_bitmap); /* LV FIXME */
-	ext4_inode_table_set(sb, gdp, input->inode_table); /* LV FIXME */
-	ext4_free_group_clusters_set(sb, gdp, input->free_blocks_count);
-	ext4_free_inodes_set(sb, gdp, EXT4_INODES_PER_GROUP(sb));
-	gdp->bg_flags = cpu_to_le16(EXT4_BG_INODE_ZEROED);
-	gdp->bg_checksum = ext4_group_desc_csum(sbi, input->group, gdp);
-
-	/*
-	 * We can allocate memory for mb_alloc based on the new group
-	 * descriptor
-	 */
-	err = ext4_mb_add_groupinfo(sb, input->group, gdp);
+	ext4_blocks_count_set(es, o_blocks_count + add);
+	ext4_debug("freeing blocks %llu through %llu\n", o_blocks_count,
+		   o_blocks_count + add);
+	/* We add the blocks to the bitmap and set the group need init bit */
+	err = ext4_group_add_blocks(handle, sb, o_blocks_count, add);
 	if (err)
-		goto exit_journal;
-
-	/*
-	 * Make the new blocks and inodes valid next.  We do this before
-	 * increasing the group count so that once the group is enabled,
-	 * all of its blocks and inodes are already valid.
-	 *
-	 * We always allocate group-by-group, then block-by-block or
-	 * inode-by-inode within a group, so enabling these
-	 * blocks/inodes before the group is live won't actually let us
-	 * allocate the new space yet.
-	 */
-	ext4_blocks_count_set(es, ext4_blocks_count(es) +
-		input->blocks_count);
-	le32_add_cpu(&es->s_inodes_count, EXT4_INODES_PER_GROUP(sb));
-
-	/*
-	 * We need to protect s_groups_count against other CPUs seeing
-	 * inconsistent state in the superblock.
-	 *
-	 * The precise rules we use are:
-	 *
-	 * * Writers must perform a smp_wmb() after updating all dependent
-	 *   data and before modifying the groups count
-	 *
-	 * * Readers must perform an smp_rmb() after reading the groups count
-	 *   and before reading any dependent data.
-	 *
-	 * NB. These rules can be relaxed when checking the group count
-	 * while freeing data, as we can only allocate from a block
-	 * group after serialising against the group count, and we can
-	 * only then free after serialising in turn against that
-	 * allocation.
-	 */
-	smp_wmb();
-
-	/* Update the global fs size fields */
-	sbi->s_groups_count++;
-
-	err = ext4_handle_dirty_metadata(handle, NULL, primary);
-	if (unlikely(err)) {
-		ext4_std_error(sb, err);
-		goto exit_journal;
-	}
-
-	/* Update the reserved block counts only once the new group is
-	 * active. */
-	ext4_r_blocks_count_set(es, ext4_r_blocks_count(es) +
-		input->reserved_blocks);
-
-	/* Update the free space counts */
-	percpu_counter_add(&sbi->s_freeclusters_counter,
-			   EXT4_B2C(sbi, input->free_blocks_count));
-	percpu_counter_add(&sbi->s_freeinodes_counter,
-			   EXT4_INODES_PER_GROUP(sb));
-
-	if (EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_FLEX_BG) &&
-	    sbi->s_log_groups_per_flex) {
-		ext4_group_t flex_group;
-		flex_group = ext4_flex_group(sbi, input->group);
-		atomic_add(EXT4_B2C(sbi, input->free_blocks_count),
-			   &sbi->s_flex_groups[flex_group].free_clusters);
-		atomic_add(EXT4_INODES_PER_GROUP(sb),
-			   &sbi->s_flex_groups[flex_group].free_inodes);
-	}
-
+		goto errout;
 	ext4_handle_dirty_super(handle, sb);
-
-exit_journal:
-	if ((err2 = ext4_journal_stop(handle)) && !err)
+	ext4_debug("freed blocks %llu through %llu\n", o_blocks_count,
+		   o_blocks_count + add);
+errout:
+	err2 = ext4_journal_stop(handle);
+	if (err2 && !err)
 		err = err2;
-	if (!err && primary) {
-		update_backups(sb, sbi->s_sbh->b_blocknr, (char *)es,
+
+	if (!err) {
+		if (test_opt(sb, DEBUG))
+			printk(KERN_DEBUG "EXT4-fs: extended group to %llu "
+			       "blocks\n", ext4_blocks_count(es));
+		update_backups(sb, EXT4_SB(sb)->s_sbh->b_blocknr, (char *)es,
 			       sizeof(struct ext4_super_block));
-		update_backups(sb, primary->b_blocknr, primary->b_data,
-			       primary->b_size);
 	}
-exit_put:
-	iput(inode);
 	return err;
-} /* ext4_group_add */
+}
 
 /*
  * Extend the filesystem to the new number of blocks specified.  This entry
@@ -985,8 +1506,7 @@ int ext4_group_extend(struct super_block *sb, struct ext4_super_block *es,
 	ext4_grpblk_t last;
 	ext4_grpblk_t add;
 	struct buffer_head *bh;
-	handle_t *handle;
-	int err, err2;
+	int err;
 	ext4_group_t group;
 
 	o_blocks_count = ext4_blocks_count(es);
@@ -1042,42 +1562,119 @@ int ext4_group_extend(struct super_block *sb, struct ext4_super_block *es,
 	}
 	brelse(bh);
 
-	/* We will update the superblock, one block bitmap, and
-	 * one group descriptor via ext4_free_blocks().
-	 */
-	handle = ext4_journal_start_sb(sb, 3);
-	if (IS_ERR(handle)) {
-		err = PTR_ERR(handle);
-		ext4_warning(sb, "error %d on journal start", err);
-		goto exit_put;
+	err = ext4_group_extend_no_check(sb, o_blocks_count, add);
+	return err;
+} /* ext4_group_extend */
+
+/*
+ * ext4_resize_fs() resizes a fs to new size specified by @n_blocks_count
+ *
+ * @sb: super block of the fs to be resized
+ * @n_blocks_count: the number of blocks resides in the resized fs
+ */
+int ext4_resize_fs(struct super_block *sb, ext4_fsblk_t n_blocks_count)
+{
+	struct ext4_new_flex_group_data *flex_gd = NULL;
+	struct ext4_sb_info *sbi = EXT4_SB(sb);
+	struct ext4_super_block *es = sbi->s_es;
+	struct buffer_head *bh;
+	struct inode *resize_inode;
+	ext4_fsblk_t o_blocks_count;
+	ext4_group_t o_group;
+	ext4_group_t n_group;
+	ext4_grpblk_t offset;
+	unsigned long n_desc_blocks;
+	unsigned long o_desc_blocks;
+	unsigned long desc_blocks;
+	int err = 0, flexbg_size = 1;
+
+	o_blocks_count = ext4_blocks_count(es);
+
+	if (test_opt(sb, DEBUG))
+		printk(KERN_DEBUG "EXT4-fs: resizing filesystem from %llu "
+		       "upto %llu blocks\n", o_blocks_count, n_blocks_count);
+
+	if (n_blocks_count < o_blocks_count) {
+		/* On-line shrinking not supported */
+		ext4_warning(sb, "can't shrink FS - resize aborted");
+		return -EINVAL;
 	}
 
-	if ((err = ext4_journal_get_write_access(handle,
-						 EXT4_SB(sb)->s_sbh))) {
-		ext4_warning(sb, "error %d on journal write access", err);
-		ext4_journal_stop(handle);
-		goto exit_put;
+	if (n_blocks_count == o_blocks_count)
+		/* Nothing need to do */
+		return 0;
+
+	ext4_get_group_no_and_offset(sb, n_blocks_count - 1, &n_group, &offset);
+	ext4_get_group_no_and_offset(sb, o_blocks_count, &o_group, &offset);
+
+	n_desc_blocks = (n_group + EXT4_DESC_PER_BLOCK(sb)) /
+			EXT4_DESC_PER_BLOCK(sb);
+	o_desc_blocks = (sbi->s_groups_count + EXT4_DESC_PER_BLOCK(sb) - 1) /
+			EXT4_DESC_PER_BLOCK(sb);
+	desc_blocks = n_desc_blocks - o_desc_blocks;
+
+	if (desc_blocks &&
+	    (!EXT4_HAS_COMPAT_FEATURE(sb, EXT4_FEATURE_COMPAT_RESIZE_INODE) ||
+	     le16_to_cpu(es->s_reserved_gdt_blocks) < desc_blocks)) {
+		ext4_warning(sb, "No reserved GDT blocks, can't resize");
+		return -EPERM;
 	}
-	ext4_blocks_count_set(es, o_blocks_count + add);
-	ext4_debug("freeing blocks %llu through %llu\n", o_blocks_count,
-		   o_blocks_count + add);
-	/* We add the blocks to the bitmap and set the group need init bit */
-	err = ext4_group_add_blocks(handle, sb, o_blocks_count, add);
-	ext4_handle_dirty_super(handle, sb);
-	ext4_debug("freed blocks %llu through %llu\n", o_blocks_count,
-		   o_blocks_count + add);
-	err2 = ext4_journal_stop(handle);
-	if (!err && err2)
-		err = err2;
 
-	if (err)
-		goto exit_put;
+	resize_inode = ext4_iget(sb, EXT4_RESIZE_INO);
+	if (IS_ERR(resize_inode)) {
+		ext4_warning(sb, "Error opening resize inode");
+		return PTR_ERR(resize_inode);
+	}
 
+	/* See if the device is actually as big as what was requested */
+	bh = sb_bread(sb, n_blocks_count - 1);
+	if (!bh) {
+		ext4_warning(sb, "can't read last block, resize aborted");
+		return -ENOSPC;
+	}
+	brelse(bh);
+
+	if (offset != 0) {
+		/* extend the last group */
+		ext4_grpblk_t add;
+		add = EXT4_BLOCKS_PER_GROUP(sb) - offset;
+		err = ext4_group_extend_no_check(sb, o_blocks_count, add);
+		if (err)
+			goto out;
+	}
+
+	if (EXT4_HAS_INCOMPAT_FEATURE(sb, EXT4_FEATURE_INCOMPAT_FLEX_BG) &&
+	    es->s_log_groups_per_flex)
+		flexbg_size = 1 << es->s_log_groups_per_flex;
+
+	o_blocks_count = ext4_blocks_count(es);
+	if (o_blocks_count == n_blocks_count)
+		goto out;
+
+	flex_gd = alloc_flex_gd(flexbg_size);
+	if (flex_gd == NULL) {
+		err = -ENOMEM;
+		goto out;
+	}
+
+	/* Add flex groups. Note that a regular group is a
+	 * flex group with 1 group.
+	 */
+	while (ext4_setup_next_flex_gd(sb, flex_gd, n_blocks_count,
+					      flexbg_size)) {
+		ext4_alloc_group_tables(sb, flex_gd, flexbg_size);
+		err = ext4_flex_group_add(sb, resize_inode, flex_gd);
+		if (unlikely(err))
+			break;
+	}
+
+out:
+	if (flex_gd)
+		free_flex_gd(flex_gd);
+
+	iput(resize_inode);
 	if (test_opt(sb, DEBUG))
-		printk(KERN_DEBUG "EXT4-fs: extended group to %llu blocks\n",
-		       ext4_blocks_count(es));
-	update_backups(sb, EXT4_SB(sb)->s_sbh->b_blocknr, (char *)es,
-		       sizeof(struct ext4_super_block));
-exit_put:
+		printk(KERN_DEBUG "EXT4-fs: resized filesystem from %llu "
+		       "upto %llu blocks\n", o_blocks_count, n_blocks_count);
 	return err;
-} /* ext4_group_extend */
+}
diff --git a/fs/ext4/super.c b/fs/ext4/super.c
index 64e2529ae9bb..502c61fd7392 100644
--- a/fs/ext4/super.c
+++ b/fs/ext4/super.c
@@ -1095,7 +1095,7 @@ static int ext4_show_options(struct seq_file *seq, struct dentry *root)
 	}
 	if (sbi->s_max_batch_time != EXT4_DEF_MAX_BATCH_TIME) {
 		seq_printf(seq, ",max_batch_time=%u",
-			   (unsigned) sbi->s_min_batch_time);
+			   (unsigned) sbi->s_max_batch_time);
 	}
 
 	/*
@@ -2005,17 +2005,16 @@ static int ext4_fill_flex_info(struct super_block *sb)
 	struct ext4_group_desc *gdp = NULL;
 	ext4_group_t flex_group_count;
 	ext4_group_t flex_group;
-	int groups_per_flex = 0;
+	unsigned int groups_per_flex = 0;
 	size_t size;
 	int i;
 
 	sbi->s_log_groups_per_flex = sbi->s_es->s_log_groups_per_flex;
-	groups_per_flex = 1 << sbi->s_log_groups_per_flex;
-
-	if (groups_per_flex < 2) {
+	if (sbi->s_log_groups_per_flex < 1 || sbi->s_log_groups_per_flex > 31) {
 		sbi->s_log_groups_per_flex = 0;
 		return 1;
 	}
+	groups_per_flex = 1 << sbi->s_log_groups_per_flex;
 
 	/* We allocate both existing and potentially added groups */
 	flex_group_count = ((sbi->s_groups_count + groups_per_flex - 1) +
@@ -3506,7 +3505,7 @@ static int ext4_fill_super(struct super_block *sb, void *data, int silent)
 	 * of the filesystem.
 	 */
 	if (le32_to_cpu(es->s_first_data_block) >= ext4_blocks_count(es)) {
-                ext4_msg(sb, KERN_WARNING, "bad geometry: first data"
+		ext4_msg(sb, KERN_WARNING, "bad geometry: first data "
 			 "block %u is beyond end of filesystem (%llu)",
 			 le32_to_cpu(es->s_first_data_block),
 			 ext4_blocks_count(es));
@@ -3733,10 +3732,12 @@ no_journal:
 	}
 	if (!S_ISDIR(root->i_mode) || !root->i_blocks || !root->i_size) {
 		ext4_msg(sb, KERN_ERR, "corrupt root inode, run e2fsck");
+		iput(root);
 		goto failed_mount4;
 	}
 	sb->s_root = d_alloc_root(root);
 	if (!sb->s_root) {
+		iput(root);
 		ext4_msg(sb, KERN_ERR, "get root dentry failed");
 		ret = -ENOMEM;
 		goto failed_mount4;
@@ -3773,7 +3774,7 @@ no_journal:
 	if (err) {
 		ext4_msg(sb, KERN_ERR, "failed to initialize system "
 			 "zone (%d)", err);
-		goto failed_mount4;
+		goto failed_mount4a;
 	}
 
 	ext4_ext_init(sb);
@@ -3830,13 +3831,14 @@ cantfind_ext4:
 failed_mount7:
 	ext4_unregister_li_request(sb);
 failed_mount6:
-	ext4_ext_release(sb);
-failed_mount5:
 	ext4_mb_release(sb);
+failed_mount5:
+	ext4_ext_release(sb);
 	ext4_release_system_zone(sb);
-failed_mount4:
-	iput(root);
+failed_mount4a:
+	dput(sb->s_root);
 	sb->s_root = NULL;
+failed_mount4:
 	ext4_msg(sb, KERN_ERR, "mount failed");
 	destroy_workqueue(EXT4_SB(sb)->dio_unwritten_wq);
 failed_mount_wq:
diff --git a/fs/ext4/xattr_security.c b/fs/ext4/xattr_security.c
index 34e4350dd4d9..d2a200624af5 100644
--- a/fs/ext4/xattr_security.c
+++ b/fs/ext4/xattr_security.c
@@ -3,7 +3,6 @@
  * Handler for storing security labels as extended attributes.
  */
 
-#include <linux/module.h>
 #include <linux/string.h>
 #include <linux/fs.h>
 #include <linux/security.h>
@@ -48,8 +47,9 @@ ext4_xattr_security_set(struct dentry *dentry, const char *name,
 			      name, value, size, flags);
 }
 
-int ext4_initxattrs(struct inode *inode, const struct xattr *xattr_array,
-		    void *fs_info)
+static int
+ext4_initxattrs(struct inode *inode, const struct xattr *xattr_array,
+		void *fs_info)
 {
 	const struct xattr *xattr;
 	handle_t *handle = fs_info;
diff --git a/fs/ext4/xattr_trusted.c b/fs/ext4/xattr_trusted.c
index 37e6ebca2cc3..95f1f4ab59a4 100644
--- a/fs/ext4/xattr_trusted.c
+++ b/fs/ext4/xattr_trusted.c
@@ -5,7 +5,6 @@
  * Copyright (C) 2003 by Andreas Gruenbacher, <a.gruenbacher@computer.org>
  */
 
-#include <linux/module.h>
 #include <linux/string.h>
 #include <linux/capability.h>
 #include <linux/fs.h>
diff --git a/fs/ext4/xattr_user.c b/fs/ext4/xattr_user.c
index 98c375352d0e..0edb7611ffbe 100644
--- a/fs/ext4/xattr_user.c
+++ b/fs/ext4/xattr_user.c
@@ -5,7 +5,6 @@
  * Copyright (C) 2001 by Andreas Gruenbacher, <a.gruenbacher@computer.org>
  */
 
-#include <linux/module.h>
 #include <linux/string.h>
 #include <linux/fs.h>
 #include "ext4_jbd2.h"
diff --git a/fs/fat/namei_vfat.c b/fs/fat/namei_vfat.c
index 3a444b4e2368..a81eb2367d39 100644
--- a/fs/fat/namei_vfat.c
+++ b/fs/fat/namei_vfat.c
@@ -512,7 +512,8 @@ xlate_to_uni(const unsigned char *name, int len, unsigned char *outname,
 	int charlen;
 
 	if (utf8) {
-		*outlen = utf8s_to_utf16s(name, len, (wchar_t *)outname);
+		*outlen = utf8s_to_utf16s(name, len, UTF16_HOST_ENDIAN,
+				(wchar_t *) outname, FAT_LFN_LEN + 2);
 		if (*outlen < 0)
 			return *outlen;
 		else if (*outlen > FAT_LFN_LEN)
diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index e2951506434d..f855916657ba 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -20,6 +20,7 @@
 #include <linux/sched.h>
 #include <linux/fs.h>
 #include <linux/mm.h>
+#include <linux/pagemap.h>
 #include <linux/kthread.h>
 #include <linux/freezer.h>
 #include <linux/writeback.h>
@@ -29,6 +30,11 @@
 #include "internal.h"
 
 /*
+ * 4MB minimal write chunk size
+ */
+#define MIN_WRITEBACK_PAGES	(4096UL >> (PAGE_CACHE_SHIFT - 10))
+
+/*
  * Passed into wb_writeback(), essentially a subset of writeback_control
  */
 struct wb_writeback_work {
@@ -742,11 +748,17 @@ static long wb_writeback(struct bdi_writeback *wb,
 		if (work->for_background && !over_bground_thresh(wb->bdi))
 			break;
 
+		/*
+		 * Kupdate and background works are special and we want to
+		 * include all inodes that need writing. Livelock avoidance is
+		 * handled by these works yielding to any other work so we are
+		 * safe.
+		 */
 		if (work->for_kupdate) {
 			oldest_jif = jiffies -
 				msecs_to_jiffies(dirty_expire_interval * 10);
-			work->older_than_this = &oldest_jif;
-		}
+		} else if (work->for_background)
+			oldest_jif = jiffies;
 
 		trace_writeback_start(wb->bdi, work);
 		if (list_empty(&wb->b_io))
diff --git a/fs/gfs2/lock_dlm.c b/fs/gfs2/lock_dlm.c
index 98c80d8c2a62..ce85b62bc0a2 100644
--- a/fs/gfs2/lock_dlm.c
+++ b/fs/gfs2/lock_dlm.c
@@ -195,10 +195,10 @@ static int gdlm_mount(struct gfs2_sbd *sdp, const char *fsname)
 		return -EINVAL;
 	}
 
-	error = dlm_new_lockspace(fsname, strlen(fsname), &ls->ls_dlm,
+	error = dlm_new_lockspace(fsname, NULL, 
 				  DLM_LSFL_FS | DLM_LSFL_NEWEXCL |
 				  (ls->ls_nodir ? DLM_LSFL_NODIR : 0),
-				  GDLM_LVB_SIZE);
+				  GDLM_LVB_SIZE, NULL, NULL, NULL, &ls->ls_dlm);
 	if (error)
 		printk(KERN_ERR "dlm_new_lockspace error %d", error);
 
diff --git a/fs/inode.c b/fs/inode.c
index 87535753ab04..4fa4f0916af9 100644
--- a/fs/inode.c
+++ b/fs/inode.c
@@ -776,6 +776,8 @@ void prune_icache_sb(struct super_block *sb, int nr_to_scan)
 	else
 		__count_vm_events(PGINODESTEAL, reap);
 	spin_unlock(&sb->s_inode_lru_lock);
+	if (current->reclaim_state)
+		current->reclaim_state->reclaimed_slab += reap;
 
 	dispose_list(&freeable);
 }
diff --git a/fs/isofs/inode.c b/fs/isofs/inode.c
index 7b99f5f460be..bd62c76fb5df 100644
--- a/fs/isofs/inode.c
+++ b/fs/isofs/inode.c
@@ -948,8 +948,11 @@ root_found:
 
 	/* get the root dentry */
 	s->s_root = d_alloc_root(inode);
-	if (!(s->s_root))
-		goto out_no_root;
+	if (!(s->s_root)) {
+		iput(inode);
+		error = -ENOMEM;
+		goto out_no_inode;
+	}
 
 	kfree(opt.iocharset);
 
diff --git a/fs/jbd/commit.c b/fs/jbd/commit.c
index 8799207df058..f2b9a571f4cf 100644
--- a/fs/jbd/commit.c
+++ b/fs/jbd/commit.c
@@ -392,6 +392,12 @@ void journal_commit_transaction(journal_t *journal)
 	jbd_debug (3, "JBD: commit phase 1\n");
 
 	/*
+	 * Clear revoked flag to reflect there is no revoked buffers
+	 * in the next transaction which is going to be started.
+	 */
+	journal_clear_buffer_revoked_flags(journal);
+
+	/*
 	 * Switch to a new revoke table.
 	 */
 	journal_switch_revoke_table(journal);
diff --git a/fs/jbd/journal.c b/fs/jbd/journal.c
index a96cff0c5f1d..59c09f9541b5 100644
--- a/fs/jbd/journal.c
+++ b/fs/jbd/journal.c
@@ -721,7 +721,6 @@ static journal_t * journal_init_common (void)
 	init_waitqueue_head(&journal->j_wait_checkpoint);
 	init_waitqueue_head(&journal->j_wait_commit);
 	init_waitqueue_head(&journal->j_wait_updates);
-	mutex_init(&journal->j_barrier);
 	mutex_init(&journal->j_checkpoint_mutex);
 	spin_lock_init(&journal->j_revoke_lock);
 	spin_lock_init(&journal->j_list_lock);
diff --git a/fs/jbd/revoke.c b/fs/jbd/revoke.c
index 305a90763154..25c713e7071c 100644
--- a/fs/jbd/revoke.c
+++ b/fs/jbd/revoke.c
@@ -47,6 +47,10 @@
  *   overwriting the new data.  We don't even need to clear the revoke
  *   bit here.
  *
+ * We cache revoke status of a buffer in the current transaction in b_states
+ * bits.  As the name says, revokevalid flag indicates that the cached revoke
+ * status of a buffer is valid and we can rely on the cached status.
+ *
  * Revoke information on buffers is a tri-state value:
  *
  * RevokeValid clear:	no cached revoke status, need to look it up
@@ -479,6 +483,36 @@ int journal_cancel_revoke(handle_t *handle, struct journal_head *jh)
 	return did_revoke;
 }
 
+/*
+ * journal_clear_revoked_flags clears revoked flag of buffers in
+ * revoke table to reflect there is no revoked buffer in the next
+ * transaction which is going to be started.
+ */
+void journal_clear_buffer_revoked_flags(journal_t *journal)
+{
+	struct jbd_revoke_table_s *revoke = journal->j_revoke;
+	int i = 0;
+
+	for (i = 0; i < revoke->hash_size; i++) {
+		struct list_head *hash_list;
+		struct list_head *list_entry;
+		hash_list = &revoke->hash_table[i];
+
+		list_for_each(list_entry, hash_list) {
+			struct jbd_revoke_record_s *record;
+			struct buffer_head *bh;
+			record = (struct jbd_revoke_record_s *)list_entry;
+			bh = __find_get_block(journal->j_fs_dev,
+					      record->blocknr,
+					      journal->j_blocksize);
+			if (bh) {
+				clear_buffer_revoked(bh);
+				__brelse(bh);
+			}
+		}
+	}
+}
+
 /* journal_switch_revoke table select j_revoke for next transaction
  * we do not want to suspend any processing until all revokes are
  * written -bzzz
diff --git a/fs/jbd/transaction.c b/fs/jbd/transaction.c
index 7e59c6e66f9b..7fce94b04bc3 100644
--- a/fs/jbd/transaction.c
+++ b/fs/jbd/transaction.c
@@ -426,17 +426,34 @@ int journal_restart(handle_t *handle, int nblocks)
  * void journal_lock_updates () - establish a transaction barrier.
  * @journal:  Journal to establish a barrier on.
  *
- * This locks out any further updates from being started, and blocks
- * until all existing updates have completed, returning only once the
- * journal is in a quiescent state with no updates running.
- *
- * The journal lock should not be held on entry.
+ * This locks out any further updates from being started, and blocks until all
+ * existing updates have completed, returning only once the journal is in a
+ * quiescent state with no updates running.
+ *
+ * We do not use simple mutex for synchronization as there are syscalls which
+ * want to return with filesystem locked and that trips up lockdep. Also
+ * hibernate needs to lock filesystem but locked mutex then blocks hibernation.
+ * Since locking filesystem is rare operation, we use simple counter and
+ * waitqueue for locking.
  */
 void journal_lock_updates(journal_t *journal)
 {
 	DEFINE_WAIT(wait);
 
+wait:
+	/* Wait for previous locked operation to finish */
+	wait_event(journal->j_wait_transaction_locked,
+		   journal->j_barrier_count == 0);
+
 	spin_lock(&journal->j_state_lock);
+	/*
+	 * Check reliably under the lock whether we are the ones winning the race
+	 * and locking the journal
+	 */
+	if (journal->j_barrier_count > 0) {
+		spin_unlock(&journal->j_state_lock);
+		goto wait;
+	}
 	++journal->j_barrier_count;
 
 	/* Wait until there are no running updates */
@@ -460,14 +477,6 @@ void journal_lock_updates(journal_t *journal)
 		spin_lock(&journal->j_state_lock);
 	}
 	spin_unlock(&journal->j_state_lock);
-
-	/*
-	 * We have now established a barrier against other normal updates, but
-	 * we also need to barrier against other journal_lock_updates() calls
-	 * to make sure that we serialise special journal-locked operations
-	 * too.
-	 */
-	mutex_lock(&journal->j_barrier);
 }
 
 /**
@@ -475,14 +484,11 @@ void journal_lock_updates(journal_t *journal)
  * @journal:  Journal to release the barrier on.
  *
  * Release a transaction barrier obtained with journal_lock_updates().
- *
- * Should be called without the journal lock held.
  */
 void journal_unlock_updates (journal_t *journal)
 {
 	J_ASSERT(journal->j_barrier_count != 0);
 
-	mutex_unlock(&journal->j_barrier);
 	spin_lock(&journal->j_state_lock);
 	--journal->j_barrier_count;
 	spin_unlock(&journal->j_state_lock);
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index 68d704db787f..5069b8475150 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -430,6 +430,12 @@ void jbd2_journal_commit_transaction(journal_t *journal)
 	jbd_debug(3, "JBD2: commit phase 1\n");
 
 	/*
+	 * Clear revoked flag to reflect there is no revoked buffers
+	 * in the next transaction which is going to be started.
+	 */
+	jbd2_clear_buffer_revoked_flags(journal);
+
+	/*
 	 * Switch to a new revoke table.
 	 */
 	jbd2_journal_switch_revoke_table(journal);
diff --git a/fs/jbd2/revoke.c b/fs/jbd2/revoke.c
index 69fd93588118..30b2867d6cc9 100644
--- a/fs/jbd2/revoke.c
+++ b/fs/jbd2/revoke.c
@@ -47,6 +47,10 @@
  *   overwriting the new data.  We don't even need to clear the revoke
  *   bit here.
  *
+ * We cache revoke status of a buffer in the current transaction in b_states
+ * bits.  As the name says, revokevalid flag indicates that the cached revoke
+ * status of a buffer is valid and we can rely on the cached status.
+ *
  * Revoke information on buffers is a tri-state value:
  *
  * RevokeValid clear:	no cached revoke status, need to look it up
@@ -478,6 +482,36 @@ int jbd2_journal_cancel_revoke(handle_t *handle, struct journal_head *jh)
 	return did_revoke;
 }
 
+/*
+ * journal_clear_revoked_flag clears revoked flag of buffers in
+ * revoke table to reflect there is no revoked buffers in the next
+ * transaction which is going to be started.
+ */
+void jbd2_clear_buffer_revoked_flags(journal_t *journal)
+{
+	struct jbd2_revoke_table_s *revoke = journal->j_revoke;
+	int i = 0;
+
+	for (i = 0; i < revoke->hash_size; i++) {
+		struct list_head *hash_list;
+		struct list_head *list_entry;
+		hash_list = &revoke->hash_table[i];
+
+		list_for_each(list_entry, hash_list) {
+			struct jbd2_revoke_record_s *record;
+			struct buffer_head *bh;
+			record = (struct jbd2_revoke_record_s *)list_entry;
+			bh = __find_get_block(journal->j_fs_dev,
+					      record->blocknr,
+					      journal->j_blocksize);
+			if (bh) {
+				clear_buffer_revoked(bh);
+				__brelse(bh);
+			}
+		}
+	}
+}
+
 /* journal_switch_revoke table select j_revoke for next transaction
  * we do not want to suspend any processing until all revokes are
  * written -bzzz
diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c
index a0e41a4c080e..35ae096bed5d 100644
--- a/fs/jbd2/transaction.c
+++ b/fs/jbd2/transaction.c
@@ -517,12 +517,13 @@ void jbd2_journal_lock_updates(journal_t *journal)
 			break;
 
 		spin_lock(&transaction->t_handle_lock);
+		prepare_to_wait(&journal->j_wait_updates, &wait,
+				TASK_UNINTERRUPTIBLE);
 		if (!atomic_read(&transaction->t_updates)) {
 			spin_unlock(&transaction->t_handle_lock);
+			finish_wait(&journal->j_wait_updates, &wait);
 			break;
 		}
-		prepare_to_wait(&journal->j_wait_updates, &wait,
-				TASK_UNINTERRUPTIBLE);
 		spin_unlock(&transaction->t_handle_lock);
 		write_unlock(&journal->j_state_lock);
 		schedule();
diff --git a/fs/jffs2/erase.c b/fs/jffs2/erase.c
index e513f1913c15..a01cdad6aad1 100644
--- a/fs/jffs2/erase.c
+++ b/fs/jffs2/erase.c
@@ -74,7 +74,7 @@ static void jffs2_erase_block(struct jffs2_sb_info *c,
 	((struct erase_priv_struct *)instr->priv)->jeb = jeb;
 	((struct erase_priv_struct *)instr->priv)->c = c;
 
-	ret = c->mtd->erase(c->mtd, instr);
+	ret = mtd_erase(c->mtd, instr);
 	if (!ret)
 		return;
 
@@ -336,12 +336,11 @@ static int jffs2_block_check_erase(struct jffs2_sb_info *c, struct jffs2_erasebl
 	uint32_t ofs;
 	size_t retlen;
 	int ret = -EIO;
+	unsigned long *wordebuf;
 
-	if (c->mtd->point) {
-		unsigned long *wordebuf;
-
-		ret = c->mtd->point(c->mtd, jeb->offset, c->sector_size,
-				    &retlen, &ebuf, NULL);
+	ret = mtd_point(c->mtd, jeb->offset, c->sector_size, &retlen,
+			&ebuf, NULL);
+	if (ret != -EOPNOTSUPP) {
 		if (ret) {
 			D1(printk(KERN_DEBUG "MTD point failed %d\n", ret));
 			goto do_flash_read;
@@ -349,7 +348,7 @@ static int jffs2_block_check_erase(struct jffs2_sb_info *c, struct jffs2_erasebl
 		if (retlen < c->sector_size) {
 			/* Don't muck about if it won't let us point to the whole erase sector */
 			D1(printk(KERN_DEBUG "MTD point returned len too short: 0x%zx\n", retlen));
-			c->mtd->unpoint(c->mtd, jeb->offset, retlen);
+			mtd_unpoint(c->mtd, jeb->offset, retlen);
 			goto do_flash_read;
 		}
 		wordebuf = ebuf-sizeof(*wordebuf);
@@ -358,7 +357,7 @@ static int jffs2_block_check_erase(struct jffs2_sb_info *c, struct jffs2_erasebl
 		   if (*++wordebuf != ~0)
 			   break;
 		} while(--retlen);
-		c->mtd->unpoint(c->mtd, jeb->offset, c->sector_size);
+		mtd_unpoint(c->mtd, jeb->offset, c->sector_size);
 		if (retlen) {
 			printk(KERN_WARNING "Newly-erased block contained word 0x%lx at offset 0x%08tx\n",
 			       *wordebuf, jeb->offset + c->sector_size-retlen*sizeof(*wordebuf));
@@ -381,7 +380,7 @@ static int jffs2_block_check_erase(struct jffs2_sb_info *c, struct jffs2_erasebl
 
 		*bad_offset = ofs;
 
-		ret = c->mtd->read(c->mtd, ofs, readlen, &retlen, ebuf);
+		ret = mtd_read(c->mtd, ofs, readlen, &retlen, ebuf);
 		if (ret) {
 			printk(KERN_WARNING "Read of newly-erased block at 0x%08x failed: %d. Putting on bad_list\n", ofs, ret);
 			ret = -EIO;
diff --git a/fs/jffs2/fs.c b/fs/jffs2/fs.c
index 4b8afe39a87f..2e0123867cb1 100644
--- a/fs/jffs2/fs.c
+++ b/fs/jffs2/fs.c
@@ -466,7 +466,6 @@ struct inode *jffs2_new_inode (struct inode *dir_i, umode_t mode, struct jffs2_r
 
 	if (insert_inode_locked(inode) < 0) {
 		make_bad_inode(inode);
-		unlock_new_inode(inode);
 		iput(inode);
 		return ERR_PTR(-EINVAL);
 	}
diff --git a/fs/jffs2/readinode.c b/fs/jffs2/readinode.c
index ee57bac1ba6d..3093ac4fb24c 100644
--- a/fs/jffs2/readinode.c
+++ b/fs/jffs2/readinode.c
@@ -62,17 +62,15 @@ static int check_node_data(struct jffs2_sb_info *c, struct jffs2_tmp_dnode_info
 #ifndef __ECOS
 	/* TODO: instead, incapsulate point() stuff to jffs2_flash_read(),
 	 * adding and jffs2_flash_read_end() interface. */
-	if (c->mtd->point) {
-		err = c->mtd->point(c->mtd, ofs, len, &retlen,
-				    (void **)&buffer, NULL);
-		if (!err && retlen < len) {
-			JFFS2_WARNING("MTD point returned len too short: %zu instead of %u.\n", retlen, tn->csize);
-			c->mtd->unpoint(c->mtd, ofs, retlen);
-		} else if (err)
+	err = mtd_point(c->mtd, ofs, len, &retlen, (void **)&buffer, NULL);
+	if (!err && retlen < len) {
+		JFFS2_WARNING("MTD point returned len too short: %zu instead of %u.\n", retlen, tn->csize);
+		mtd_unpoint(c->mtd, ofs, retlen);
+	} else if (err) {
+		if (err != -EOPNOTSUPP)
 			JFFS2_WARNING("MTD point failed: error code %d.\n", err);
-		else
-			pointed = 1; /* succefully pointed to device */
-	}
+	} else
+		pointed = 1; /* succefully pointed to device */
 #endif
 
 	if (!pointed) {
@@ -101,7 +99,7 @@ static int check_node_data(struct jffs2_sb_info *c, struct jffs2_tmp_dnode_info
 		kfree(buffer);
 #ifndef __ECOS
 	else
-		c->mtd->unpoint(c->mtd, ofs, len);
+		mtd_unpoint(c->mtd, ofs, len);
 #endif
 
 	if (crc != tn->data_crc) {
@@ -137,7 +135,7 @@ free_out:
 		kfree(buffer);
 #ifndef __ECOS
 	else
-		c->mtd->unpoint(c->mtd, ofs, len);
+		mtd_unpoint(c->mtd, ofs, len);
 #endif
 	return err;
 }
diff --git a/fs/jffs2/scan.c b/fs/jffs2/scan.c
index 28107ca136e4..f99464833bb2 100644
--- a/fs/jffs2/scan.c
+++ b/fs/jffs2/scan.c
@@ -97,15 +97,15 @@ int jffs2_scan_medium(struct jffs2_sb_info *c)
 	size_t pointlen, try_size;
 
 	if (c->mtd->point) {
-		ret = c->mtd->point(c->mtd, 0, c->mtd->size, &pointlen,
-				    (void **)&flashbuf, NULL);
+		ret = mtd_point(c->mtd, 0, c->mtd->size, &pointlen,
+				(void **)&flashbuf, NULL);
 		if (!ret && pointlen < c->mtd->size) {
 			/* Don't muck about if it won't let us point to the whole flash */
 			D1(printk(KERN_DEBUG "MTD point returned len too short: 0x%zx\n", pointlen));
-			c->mtd->unpoint(c->mtd, 0, pointlen);
+			mtd_unpoint(c->mtd, 0, pointlen);
 			flashbuf = NULL;
 		}
-		if (ret)
+		if (ret && ret != -EOPNOTSUPP)
 			D1(printk(KERN_DEBUG "MTD point failed %d\n", ret));
 	}
 #endif
@@ -273,7 +273,7 @@ int jffs2_scan_medium(struct jffs2_sb_info *c)
 		kfree(flashbuf);
 #ifndef __ECOS
 	else
-		c->mtd->unpoint(c->mtd, 0, c->mtd->size);
+		mtd_unpoint(c->mtd, 0, c->mtd->size);
 #endif
 	kfree(s);
 	return ret;
@@ -455,7 +455,7 @@ static int jffs2_scan_eraseblock (struct jffs2_sb_info *c, struct jffs2_eraseblo
 	if (jffs2_cleanmarker_oob(c)) {
 		int ret;
 
-		if (c->mtd->block_isbad(c->mtd, jeb->offset))
+		if (mtd_block_isbad(c->mtd, jeb->offset))
 			return BLK_STATE_BADBLOCK;
 
 		ret = jffs2_check_nand_cleanmarker(c, jeb);
diff --git a/fs/jffs2/super.c b/fs/jffs2/super.c
index 8be4925296cf..f2d96b5e64f6 100644
--- a/fs/jffs2/super.c
+++ b/fs/jffs2/super.c
@@ -335,9 +335,7 @@ static void jffs2_put_super (struct super_block *sb)
 	jffs2_flash_cleanup(c);
 	kfree(c->inocache_list);
 	jffs2_clear_xattr_subsystem(c);
-	if (c->mtd->sync)
-		c->mtd->sync(c->mtd);
-
+	mtd_sync(c->mtd);
 	D1(printk(KERN_DEBUG "jffs2_put_super returning\n"));
 }
 
diff --git a/fs/jffs2/wbuf.c b/fs/jffs2/wbuf.c
index b09e51d2f81f..30e8f47e8a23 100644
--- a/fs/jffs2/wbuf.c
+++ b/fs/jffs2/wbuf.c
@@ -228,7 +228,7 @@ static int jffs2_verify_write(struct jffs2_sb_info *c, unsigned char *buf,
 	size_t retlen;
 	char *eccstr;
 
-	ret = c->mtd->read(c->mtd, ofs, c->wbuf_pagesize, &retlen, c->wbuf_verify);
+	ret = mtd_read(c->mtd, ofs, c->wbuf_pagesize, &retlen, c->wbuf_verify);
 	if (ret && ret != -EUCLEAN && ret != -EBADMSG) {
 		printk(KERN_WARNING "jffs2_verify_write(): Read back of page at %08x failed: %d\n", c->wbuf_ofs, ret);
 		return ret;
@@ -337,7 +337,8 @@ static void jffs2_wbuf_recover(struct jffs2_sb_info *c)
 		}
 
 		/* Do the read... */
-		ret = c->mtd->read(c->mtd, start, c->wbuf_ofs - start, &retlen, buf);
+		ret = mtd_read(c->mtd, start, c->wbuf_ofs - start, &retlen,
+			       buf);
 
 		/* ECC recovered ? */
 		if ((ret == -EUCLEAN || ret == -EBADMSG) &&
@@ -413,13 +414,12 @@ static void jffs2_wbuf_recover(struct jffs2_sb_info *c)
 		if (breakme++ == 20) {
 			printk(KERN_NOTICE "Faking write error at 0x%08x\n", ofs);
 			breakme = 0;
-			c->mtd->write(c->mtd, ofs, towrite, &retlen,
-				      brokenbuf);
+			mtd_write(c->mtd, ofs, towrite, &retlen, brokenbuf);
 			ret = -EIO;
 		} else
 #endif
-			ret = c->mtd->write(c->mtd, ofs, towrite, &retlen,
-					    rewrite_buf);
+			ret = mtd_write(c->mtd, ofs, towrite, &retlen,
+					rewrite_buf);
 
 		if (ret || retlen != towrite || jffs2_verify_write(c, rewrite_buf, ofs)) {
 			/* Argh. We tried. Really we did. */
@@ -619,13 +619,14 @@ static int __jffs2_flush_wbuf(struct jffs2_sb_info *c, int pad)
 	if (breakme++ == 20) {
 		printk(KERN_NOTICE "Faking write error at 0x%08x\n", c->wbuf_ofs);
 		breakme = 0;
-		c->mtd->write(c->mtd, c->wbuf_ofs, c->wbuf_pagesize, &retlen,
-			      brokenbuf);
+		mtd_write(c->mtd, c->wbuf_ofs, c->wbuf_pagesize, &retlen,
+			  brokenbuf);
 		ret = -EIO;
 	} else
 #endif
 
-		ret = c->mtd->write(c->mtd, c->wbuf_ofs, c->wbuf_pagesize, &retlen, c->wbuf);
+		ret = mtd_write(c->mtd, c->wbuf_ofs, c->wbuf_pagesize,
+				&retlen, c->wbuf);
 
 	if (ret) {
 		printk(KERN_WARNING "jffs2_flush_wbuf(): Write failed with %d\n", ret);
@@ -861,8 +862,8 @@ int jffs2_flash_writev(struct jffs2_sb_info *c, const struct kvec *invecs,
 		v += wbuf_retlen;
 
 		if (vlen >= c->wbuf_pagesize) {
-			ret = c->mtd->write(c->mtd, outvec_to, PAGE_DIV(vlen),
-					    &wbuf_retlen, v);
+			ret = mtd_write(c->mtd, outvec_to, PAGE_DIV(vlen),
+					&wbuf_retlen, v);
 			if (ret < 0 || wbuf_retlen != PAGE_DIV(vlen))
 				goto outfile;
 
@@ -948,11 +949,11 @@ int jffs2_flash_read(struct jffs2_sb_info *c, loff_t ofs, size_t len, size_t *re
 	int	ret;
 
 	if (!jffs2_is_writebuffered(c))
-		return c->mtd->read(c->mtd, ofs, len, retlen, buf);
+		return mtd_read(c->mtd, ofs, len, retlen, buf);
 
 	/* Read flash */
 	down_read(&c->wbuf_sem);
-	ret = c->mtd->read(c->mtd, ofs, len, retlen, buf);
+	ret = mtd_read(c->mtd, ofs, len, retlen, buf);
 
 	if ( (ret == -EBADMSG || ret == -EUCLEAN) && (*retlen == len) ) {
 		if (ret == -EBADMSG)
@@ -1031,7 +1032,7 @@ int jffs2_check_oob_empty(struct jffs2_sb_info *c,
 	ops.len = ops.ooboffs = ops.retlen = ops.oobretlen = 0;
 	ops.datbuf = NULL;
 
-	ret = c->mtd->read_oob(c->mtd, jeb->offset, &ops);
+	ret = mtd_read_oob(c->mtd, jeb->offset, &ops);
 	if (ret || ops.oobretlen != ops.ooblen) {
 		printk(KERN_ERR "cannot read OOB for EB at %08x, requested %zd"
 				" bytes, read %zd bytes, error %d\n",
@@ -1074,7 +1075,7 @@ int jffs2_check_nand_cleanmarker(struct jffs2_sb_info *c,
 	ops.len = ops.ooboffs = ops.retlen = ops.oobretlen = 0;
 	ops.datbuf = NULL;
 
-	ret = c->mtd->read_oob(c->mtd, jeb->offset, &ops);
+	ret = mtd_read_oob(c->mtd, jeb->offset, &ops);
 	if (ret || ops.oobretlen != ops.ooblen) {
 		printk(KERN_ERR "cannot read OOB for EB at %08x, requested %zd"
 				" bytes, read %zd bytes, error %d\n",
@@ -1100,7 +1101,7 @@ int jffs2_write_nand_cleanmarker(struct jffs2_sb_info *c,
 	ops.len = ops.ooboffs = ops.retlen = ops.oobretlen = 0;
 	ops.datbuf = NULL;
 
-	ret = c->mtd->write_oob(c->mtd, jeb->offset, &ops);
+	ret = mtd_write_oob(c->mtd, jeb->offset, &ops);
 	if (ret || ops.oobretlen != ops.ooblen) {
 		printk(KERN_ERR "cannot write OOB for EB at %08x, requested %zd"
 				" bytes, read %zd bytes, error %d\n",
@@ -1129,11 +1130,8 @@ int jffs2_write_nand_badblock(struct jffs2_sb_info *c, struct jffs2_eraseblock *
 	if( ++jeb->bad_count < MAX_ERASE_FAILURES)
 		return 0;
 
-	if (!c->mtd->block_markbad)
-		return 1; // What else can we do?
-
 	printk(KERN_WARNING "JFFS2: marking eraseblock at %08x\n as bad", bad_offset);
-	ret = c->mtd->block_markbad(c->mtd, bad_offset);
+	ret = mtd_block_markbad(c->mtd, bad_offset);
 
 	if (ret) {
 		D1(printk(KERN_WARNING "jffs2_write_nand_badblock(): Write failed for block at %08x: error %d\n", jeb->offset, ret));
diff --git a/fs/jffs2/writev.c b/fs/jffs2/writev.c
index b9276b11bac6..a1bda9dab3f8 100644
--- a/fs/jffs2/writev.c
+++ b/fs/jffs2/writev.c
@@ -13,30 +13,6 @@
 #include <linux/mtd/mtd.h>
 #include "nodelist.h"
 
-/* This ought to be in core MTD code. All registered MTD devices
-   without writev should have this put in place. Bug the MTD
-   maintainer */
-static inline int mtd_fake_writev(struct mtd_info *mtd, const struct kvec *vecs,
-				  unsigned long count, loff_t to, size_t *retlen)
-{
-	unsigned long i;
-	size_t totlen = 0, thislen;
-	int ret = 0;
-
-	for (i=0; i<count; i++) {
-		if (!vecs[i].iov_len)
-			continue;
-		ret = mtd->write(mtd, to, vecs[i].iov_len, &thislen, vecs[i].iov_base);
-		totlen += thislen;
-		if (ret || thislen != vecs[i].iov_len)
-			break;
-		to += vecs[i].iov_len;
-	}
-	if (retlen)
-		*retlen = totlen;
-	return ret;
-}
-
 int jffs2_flash_direct_writev(struct jffs2_sb_info *c, const struct kvec *vecs,
 			      unsigned long count, loff_t to, size_t *retlen)
 {
@@ -50,18 +26,14 @@ int jffs2_flash_direct_writev(struct jffs2_sb_info *c, const struct kvec *vecs,
 		}
 	}
 
-	if (c->mtd->writev)
-		return c->mtd->writev(c->mtd, vecs, count, to, retlen);
-	else {
-		return mtd_fake_writev(c->mtd, vecs, count, to, retlen);
-	}
+	return mtd_writev(c->mtd, vecs, count, to, retlen);
 }
 
 int jffs2_flash_direct_write(struct jffs2_sb_info *c, loff_t ofs, size_t len,
 			size_t *retlen, const u_char *buf)
 {
 	int ret;
-	ret = c->mtd->write(c->mtd, ofs, len, retlen, buf);
+	ret = mtd_write(c->mtd, ofs, len, retlen, buf);
 
 	if (jffs2_sum_active()) {
 		struct kvec vecs[1];
diff --git a/fs/logfs/dev_mtd.c b/fs/logfs/dev_mtd.c
index 339e17e9133d..e97404d611e0 100644
--- a/fs/logfs/dev_mtd.c
+++ b/fs/logfs/dev_mtd.c
@@ -13,13 +13,14 @@
 
 #define PAGE_OFS(ofs) ((ofs) & (PAGE_SIZE-1))
 
-static int mtd_read(struct super_block *sb, loff_t ofs, size_t len, void *buf)
+static int logfs_mtd_read(struct super_block *sb, loff_t ofs, size_t len,
+			void *buf)
 {
 	struct mtd_info *mtd = logfs_super(sb)->s_mtd;
 	size_t retlen;
 	int ret;
 
-	ret = mtd->read(mtd, ofs, len, &retlen, buf);
+	ret = mtd_read(mtd, ofs, len, &retlen, buf);
 	BUG_ON(ret == -EINVAL);
 	if (ret)
 		return ret;
@@ -31,7 +32,8 @@ static int mtd_read(struct super_block *sb, loff_t ofs, size_t len, void *buf)
 	return 0;
 }
 
-static int mtd_write(struct super_block *sb, loff_t ofs, size_t len, void *buf)
+static int loffs_mtd_write(struct super_block *sb, loff_t ofs, size_t len,
+			void *buf)
 {
 	struct logfs_super *super = logfs_super(sb);
 	struct mtd_info *mtd = super->s_mtd;
@@ -47,7 +49,7 @@ static int mtd_write(struct super_block *sb, loff_t ofs, size_t len, void *buf)
 	BUG_ON(len > PAGE_CACHE_SIZE);
 	page_start = ofs & PAGE_CACHE_MASK;
 	page_end = PAGE_CACHE_ALIGN(ofs + len) - 1;
-	ret = mtd->write(mtd, ofs, len, &retlen, buf);
+	ret = mtd_write(mtd, ofs, len, &retlen, buf);
 	if (ret || (retlen != len))
 		return -EIO;
 
@@ -60,14 +62,15 @@ static int mtd_write(struct super_block *sb, loff_t ofs, size_t len, void *buf)
  * asynchronous properties.  So just to prevent the first implementor of such
  * a thing from breaking logfs in 2350, we do the usual pointless dance to
  * declare a completion variable and wait for completion before returning
- * from mtd_erase().  What an exercise in futility!
+ * from logfs_mtd_erase().  What an exercise in futility!
  */
 static void logfs_erase_callback(struct erase_info *ei)
 {
 	complete((struct completion *)ei->priv);
 }
 
-static int mtd_erase_mapping(struct super_block *sb, loff_t ofs, size_t len)
+static int logfs_mtd_erase_mapping(struct super_block *sb, loff_t ofs,
+				size_t len)
 {
 	struct logfs_super *super = logfs_super(sb);
 	struct address_space *mapping = super->s_mapping_inode->i_mapping;
@@ -84,7 +87,7 @@ static int mtd_erase_mapping(struct super_block *sb, loff_t ofs, size_t len)
 	return 0;
 }
 
-static int mtd_erase(struct super_block *sb, loff_t ofs, size_t len,
+static int logfs_mtd_erase(struct super_block *sb, loff_t ofs, size_t len,
 		int ensure_write)
 {
 	struct mtd_info *mtd = logfs_super(sb)->s_mtd;
@@ -102,30 +105,29 @@ static int mtd_erase(struct super_block *sb, loff_t ofs, size_t len,
 	ei.len = len;
 	ei.callback = logfs_erase_callback;
 	ei.priv = (long)&complete;
-	ret = mtd->erase(mtd, &ei);
+	ret = mtd_erase(mtd, &ei);
 	if (ret)
 		return -EIO;
 
 	wait_for_completion(&complete);
 	if (ei.state != MTD_ERASE_DONE)
 		return -EIO;
-	return mtd_erase_mapping(sb, ofs, len);
+	return logfs_mtd_erase_mapping(sb, ofs, len);
 }
 
-static void mtd_sync(struct super_block *sb)
+static void logfs_mtd_sync(struct super_block *sb)
 {
 	struct mtd_info *mtd = logfs_super(sb)->s_mtd;
 
-	if (mtd->sync)
-		mtd->sync(mtd);
+	mtd_sync(mtd);
 }
 
-static int mtd_readpage(void *_sb, struct page *page)
+static int logfs_mtd_readpage(void *_sb, struct page *page)
 {
 	struct super_block *sb = _sb;
 	int err;
 
-	err = mtd_read(sb, page->index << PAGE_SHIFT, PAGE_SIZE,
+	err = logfs_mtd_read(sb, page->index << PAGE_SHIFT, PAGE_SIZE,
 			page_address(page));
 	if (err == -EUCLEAN || err == -EBADMSG) {
 		/* -EBADMSG happens regularly on power failures */
@@ -143,18 +145,18 @@ static int mtd_readpage(void *_sb, struct page *page)
 	return err;
 }
 
-static struct page *mtd_find_first_sb(struct super_block *sb, u64 *ofs)
+static struct page *logfs_mtd_find_first_sb(struct super_block *sb, u64 *ofs)
 {
 	struct logfs_super *super = logfs_super(sb);
 	struct address_space *mapping = super->s_mapping_inode->i_mapping;
-	filler_t *filler = mtd_readpage;
+	filler_t *filler = logfs_mtd_readpage;
 	struct mtd_info *mtd = super->s_mtd;
 
-	if (!mtd->block_isbad)
+	if (!mtd_can_have_bb(mtd))
 		return NULL;
 
 	*ofs = 0;
-	while (mtd->block_isbad(mtd, *ofs)) {
+	while (mtd_block_isbad(mtd, *ofs)) {
 		*ofs += mtd->erasesize;
 		if (*ofs >= mtd->size)
 			return NULL;
@@ -163,18 +165,18 @@ static struct page *mtd_find_first_sb(struct super_block *sb, u64 *ofs)
 	return read_cache_page(mapping, *ofs >> PAGE_SHIFT, filler, sb);
 }
 
-static struct page *mtd_find_last_sb(struct super_block *sb, u64 *ofs)
+static struct page *logfs_mtd_find_last_sb(struct super_block *sb, u64 *ofs)
 {
 	struct logfs_super *super = logfs_super(sb);
 	struct address_space *mapping = super->s_mapping_inode->i_mapping;
-	filler_t *filler = mtd_readpage;
+	filler_t *filler = logfs_mtd_readpage;
 	struct mtd_info *mtd = super->s_mtd;
 
-	if (!mtd->block_isbad)
+	if (!mtd_can_have_bb(mtd))
 		return NULL;
 
 	*ofs = mtd->size - mtd->erasesize;
-	while (mtd->block_isbad(mtd, *ofs)) {
+	while (mtd_block_isbad(mtd, *ofs)) {
 		*ofs -= mtd->erasesize;
 		if (*ofs <= 0)
 			return NULL;
@@ -184,7 +186,7 @@ static struct page *mtd_find_last_sb(struct super_block *sb, u64 *ofs)
 	return read_cache_page(mapping, *ofs >> PAGE_SHIFT, filler, sb);
 }
 
-static int __mtd_writeseg(struct super_block *sb, u64 ofs, pgoff_t index,
+static int __logfs_mtd_writeseg(struct super_block *sb, u64 ofs, pgoff_t index,
 		size_t nr_pages)
 {
 	struct logfs_super *super = logfs_super(sb);
@@ -196,8 +198,8 @@ static int __mtd_writeseg(struct super_block *sb, u64 ofs, pgoff_t index,
 		page = find_lock_page(mapping, index + i);
 		BUG_ON(!page);
 
-		err = mtd_write(sb, page->index << PAGE_SHIFT, PAGE_SIZE,
-				page_address(page));
+		err = loffs_mtd_write(sb, page->index << PAGE_SHIFT, PAGE_SIZE,
+					page_address(page));
 		unlock_page(page);
 		page_cache_release(page);
 		if (err)
@@ -206,7 +208,7 @@ static int __mtd_writeseg(struct super_block *sb, u64 ofs, pgoff_t index,
 	return 0;
 }
 
-static void mtd_writeseg(struct super_block *sb, u64 ofs, size_t len)
+static void logfs_mtd_writeseg(struct super_block *sb, u64 ofs, size_t len)
 {
 	struct logfs_super *super = logfs_super(sb);
 	int head;
@@ -227,15 +229,15 @@ static void mtd_writeseg(struct super_block *sb, u64 ofs, size_t len)
 		len += head;
 	}
 	len = PAGE_ALIGN(len);
-	__mtd_writeseg(sb, ofs, ofs >> PAGE_SHIFT, len >> PAGE_SHIFT);
+	__logfs_mtd_writeseg(sb, ofs, ofs >> PAGE_SHIFT, len >> PAGE_SHIFT);
 }
 
-static void mtd_put_device(struct logfs_super *s)
+static void logfs_mtd_put_device(struct logfs_super *s)
 {
 	put_mtd_device(s->s_mtd);
 }
 
-static int mtd_can_write_buf(struct super_block *sb, u64 ofs)
+static int logfs_mtd_can_write_buf(struct super_block *sb, u64 ofs)
 {
 	struct logfs_super *super = logfs_super(sb);
 	void *buf;
@@ -244,7 +246,7 @@ static int mtd_can_write_buf(struct super_block *sb, u64 ofs)
 	buf = kmalloc(super->s_writesize, GFP_KERNEL);
 	if (!buf)
 		return -ENOMEM;
-	err = mtd_read(sb, ofs, super->s_writesize, buf);
+	err = logfs_mtd_read(sb, ofs, super->s_writesize, buf);
 	if (err)
 		goto out;
 	if (memchr_inv(buf, 0xff, super->s_writesize))
@@ -255,14 +257,14 @@ out:
 }
 
 static const struct logfs_device_ops mtd_devops = {
-	.find_first_sb	= mtd_find_first_sb,
-	.find_last_sb	= mtd_find_last_sb,
-	.readpage	= mtd_readpage,
-	.writeseg	= mtd_writeseg,
-	.erase		= mtd_erase,
-	.can_write_buf	= mtd_can_write_buf,
-	.sync		= mtd_sync,
-	.put_device	= mtd_put_device,
+	.find_first_sb	= logfs_mtd_find_first_sb,
+	.find_last_sb	= logfs_mtd_find_last_sb,
+	.readpage	= logfs_mtd_readpage,
+	.writeseg	= logfs_mtd_writeseg,
+	.erase		= logfs_mtd_erase,
+	.can_write_buf	= logfs_mtd_can_write_buf,
+	.sync		= logfs_mtd_sync,
+	.put_device	= logfs_mtd_put_device,
 };
 
 int logfs_get_sb_mtd(struct logfs_super *s, int mtdnr)
diff --git a/fs/nfs/callback_proc.c b/fs/nfs/callback_proc.c
index 43926add945b..54cea8ad5a76 100644
--- a/fs/nfs/callback_proc.c
+++ b/fs/nfs/callback_proc.c
@@ -339,7 +339,7 @@ validate_seqid(struct nfs4_slot_table *tbl, struct cb_sequenceargs * args)
 	dprintk("%s enter. slotid %d seqid %d\n",
 		__func__, args->csa_slotid, args->csa_sequenceid);
 
-	if (args->csa_slotid > NFS41_BC_MAX_CALLBACKS)
+	if (args->csa_slotid >= NFS41_BC_MAX_CALLBACKS)
 		return htonl(NFS4ERR_BADSLOT);
 
 	slot = tbl->slots + args->csa_slotid;
diff --git a/fs/nfs/client.c b/fs/nfs/client.c
index 873bf00d51a2..277dfaf2e99a 100644
--- a/fs/nfs/client.c
+++ b/fs/nfs/client.c
@@ -84,7 +84,7 @@ retry:
 /*
  * Turn off NFSv4 uid/gid mapping when using AUTH_SYS
  */
-static int nfs4_disable_idmapping = 0;
+static int nfs4_disable_idmapping = 1;
 
 /*
  * RPC cruft for NFS
@@ -185,7 +185,7 @@ static struct nfs_client *nfs_alloc_client(const struct nfs_client_initdata *cl_
 	clp->cl_minorversion = cl_init->minorversion;
 	clp->cl_mvops = nfs_v4_minor_ops[cl_init->minorversion];
 #endif
-	cred = rpc_lookup_machine_cred();
+	cred = rpc_lookup_machine_cred("*");
 	if (!IS_ERR(cred))
 		clp->cl_machine_cred = cred;
 	nfs_fscache_get_client_cookie(clp);
@@ -250,6 +250,11 @@ static void pnfs_init_server(struct nfs_server *server)
 	rpc_init_wait_queue(&server->roc_rpcwaitq, "pNFS ROC");
 }
 
+static void nfs4_destroy_server(struct nfs_server *server)
+{
+	nfs4_purge_state_owners(server);
+}
+
 #else
 static void nfs4_shutdown_client(struct nfs_client *clp)
 {
@@ -1065,6 +1070,7 @@ static struct nfs_server *nfs_alloc_server(void)
 	INIT_LIST_HEAD(&server->master_link);
 	INIT_LIST_HEAD(&server->delegations);
 	INIT_LIST_HEAD(&server->layouts);
+	INIT_LIST_HEAD(&server->state_owners_lru);
 
 	atomic_set(&server->active, 0);
 
@@ -1538,6 +1544,7 @@ static int nfs4_server_common_setup(struct nfs_server *server,
 
 	nfs_server_insert_lists(server);
 	server->mount_time = jiffies;
+	server->destroy = nfs4_destroy_server;
 out:
 	nfs_free_fattr(fattr);
 	return error;
@@ -1719,6 +1726,7 @@ struct nfs_server *nfs_clone_server(struct nfs_server *source,
 
 	/* Copy data from the source */
 	server->nfs_client = source->nfs_client;
+	server->destroy = source->destroy;
 	atomic_inc(&server->nfs_client->cl_count);
 	nfs_server_copy_userdata(server, source);
 
diff --git a/fs/nfs/file.c b/fs/nfs/file.c
index 606ef0f20aed..c43a452f7da2 100644
--- a/fs/nfs/file.c
+++ b/fs/nfs/file.c
@@ -272,13 +272,13 @@ nfs_file_fsync(struct file *file, loff_t start, loff_t end, int datasync)
 			datasync);
 
 	ret = filemap_write_and_wait_range(inode->i_mapping, start, end);
-	if (ret)
-		return ret;
 	mutex_lock(&inode->i_mutex);
 
 	nfs_inc_stats(inode, NFSIOS_VFSFSYNC);
 	have_error = test_and_clear_bit(NFS_CONTEXT_ERROR_WRITE, &ctx->flags);
 	status = nfs_commit_inode(inode, FLUSH_SYNC);
+	if (status >= 0 && ret < 0)
+		status = ret;
 	have_error |= test_bit(NFS_CONTEXT_ERROR_WRITE, &ctx->flags);
 	if (have_error)
 		ret = xchg(&ctx->error, 0);
diff --git a/fs/nfs/idmap.c b/fs/nfs/idmap.c
index 47d1c6ff2d8e..2c05f1991e1e 100644
--- a/fs/nfs/idmap.c
+++ b/fs/nfs/idmap.c
@@ -38,6 +38,89 @@
 #include <linux/kernel.h>
 #include <linux/slab.h>
 #include <linux/nfs_idmap.h>
+#include <linux/nfs_fs.h>
+
+/**
+ * nfs_fattr_init_names - initialise the nfs_fattr owner_name/group_name fields
+ * @fattr: fully initialised struct nfs_fattr
+ * @owner_name: owner name string cache
+ * @group_name: group name string cache
+ */
+void nfs_fattr_init_names(struct nfs_fattr *fattr,
+		struct nfs4_string *owner_name,
+		struct nfs4_string *group_name)
+{
+	fattr->owner_name = owner_name;
+	fattr->group_name = group_name;
+}
+
+static void nfs_fattr_free_owner_name(struct nfs_fattr *fattr)
+{
+	fattr->valid &= ~NFS_ATTR_FATTR_OWNER_NAME;
+	kfree(fattr->owner_name->data);
+}
+
+static void nfs_fattr_free_group_name(struct nfs_fattr *fattr)
+{
+	fattr->valid &= ~NFS_ATTR_FATTR_GROUP_NAME;
+	kfree(fattr->group_name->data);
+}
+
+static bool nfs_fattr_map_owner_name(struct nfs_server *server, struct nfs_fattr *fattr)
+{
+	struct nfs4_string *owner = fattr->owner_name;
+	__u32 uid;
+
+	if (!(fattr->valid & NFS_ATTR_FATTR_OWNER_NAME))
+		return false;
+	if (nfs_map_name_to_uid(server, owner->data, owner->len, &uid) == 0) {
+		fattr->uid = uid;
+		fattr->valid |= NFS_ATTR_FATTR_OWNER;
+	}
+	return true;
+}
+
+static bool nfs_fattr_map_group_name(struct nfs_server *server, struct nfs_fattr *fattr)
+{
+	struct nfs4_string *group = fattr->group_name;
+	__u32 gid;
+
+	if (!(fattr->valid & NFS_ATTR_FATTR_GROUP_NAME))
+		return false;
+	if (nfs_map_group_to_gid(server, group->data, group->len, &gid) == 0) {
+		fattr->gid = gid;
+		fattr->valid |= NFS_ATTR_FATTR_GROUP;
+	}
+	return true;
+}
+
+/**
+ * nfs_fattr_free_names - free up the NFSv4 owner and group strings
+ * @fattr: a fully initialised nfs_fattr structure
+ */
+void nfs_fattr_free_names(struct nfs_fattr *fattr)
+{
+	if (fattr->valid & NFS_ATTR_FATTR_OWNER_NAME)
+		nfs_fattr_free_owner_name(fattr);
+	if (fattr->valid & NFS_ATTR_FATTR_GROUP_NAME)
+		nfs_fattr_free_group_name(fattr);
+}
+
+/**
+ * nfs_fattr_map_and_free_names - map owner/group strings into uid/gid and free
+ * @server: pointer to the filesystem nfs_server structure
+ * @fattr: a fully initialised nfs_fattr structure
+ *
+ * This helper maps the cached NFSv4 owner/group strings in fattr into
+ * their numeric uid/gid equivalents, and then frees the cached strings.
+ */
+void nfs_fattr_map_and_free_names(struct nfs_server *server, struct nfs_fattr *fattr)
+{
+	if (nfs_fattr_map_owner_name(server, fattr))
+		nfs_fattr_free_owner_name(fattr);
+	if (nfs_fattr_map_group_name(server, fattr))
+		nfs_fattr_free_group_name(fattr);
+}
 
 static int nfs_map_string_to_numeric(const char *name, size_t namelen, __u32 *res)
 {
diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 81db25e92e10..25c3bfad7953 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -1020,6 +1020,8 @@ void nfs_fattr_init(struct nfs_fattr *fattr)
 	fattr->valid = 0;
 	fattr->time_start = jiffies;
 	fattr->gencount = nfs_inc_attr_generation_counter();
+	fattr->owner_name = NULL;
+	fattr->group_name = NULL;
 }
 
 struct nfs_fattr *nfs_alloc_fattr(void)
diff --git a/fs/nfs/internal.h b/fs/nfs/internal.h
index 3f4d95751d52..5ee92538b063 100644
--- a/fs/nfs/internal.h
+++ b/fs/nfs/internal.h
@@ -307,6 +307,8 @@ extern void nfs_readdata_release(struct nfs_read_data *rdata);
 /* write.c */
 extern int nfs_generic_flush(struct nfs_pageio_descriptor *desc,
 		struct list_head *head);
+extern void nfs_pageio_init_write_mds(struct nfs_pageio_descriptor *pgio,
+				  struct inode *inode, int ioflags);
 extern void nfs_pageio_reset_write_mds(struct nfs_pageio_descriptor *pgio);
 extern void nfs_writedata_release(struct nfs_write_data *wdata);
 extern void nfs_commit_free(struct nfs_write_data *p);
diff --git a/fs/nfs/nfs4_fs.h b/fs/nfs/nfs4_fs.h
index 693ae22f8731..4d7d0aedc101 100644
--- a/fs/nfs/nfs4_fs.h
+++ b/fs/nfs/nfs4_fs.h
@@ -94,6 +94,8 @@ struct nfs_unique_id {
 struct nfs4_state_owner {
 	struct nfs_unique_id so_owner_id;
 	struct nfs_server    *so_server;
+	struct list_head     so_lru;
+	unsigned long        so_expires;
 	struct rb_node	     so_server_node;
 
 	struct rpc_cred	     *so_cred;	 /* Associated cred */
@@ -319,6 +321,7 @@ static inline void nfs4_schedule_session_recovery(struct nfs4_session *session)
 
 extern struct nfs4_state_owner * nfs4_get_state_owner(struct nfs_server *, struct rpc_cred *);
 extern void nfs4_put_state_owner(struct nfs4_state_owner *);
+extern void nfs4_purge_state_owners(struct nfs_server *);
 extern struct nfs4_state * nfs4_get_open_state(struct inode *, struct nfs4_state_owner *);
 extern void nfs4_put_open_state(struct nfs4_state *);
 extern void nfs4_close_state(struct nfs4_state *, fmode_t);
diff --git a/fs/nfs/nfs4filelayout.c b/fs/nfs/nfs4filelayout.c
index a62d36b9a99e..71ec08617e23 100644
--- a/fs/nfs/nfs4filelayout.c
+++ b/fs/nfs/nfs4filelayout.c
@@ -49,13 +49,14 @@ filelayout_get_dense_offset(struct nfs4_filelayout_segment *flseg,
 			    loff_t offset)
 {
 	u32 stripe_width = flseg->stripe_unit * flseg->dsaddr->stripe_count;
-	u64 tmp;
+	u64 stripe_no;
+	u32 rem;
 
 	offset -= flseg->pattern_offset;
-	tmp = offset;
-	do_div(tmp, stripe_width);
+	stripe_no = div_u64(offset, stripe_width);
+	div_u64_rem(offset, flseg->stripe_unit, &rem);
 
-	return tmp * flseg->stripe_unit + do_div(offset, flseg->stripe_unit);
+	return stripe_no * flseg->stripe_unit + rem;
 }
 
 /* This function is used by the layout driver to calculate the
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index dcda0ba7af60..75366dc89686 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -52,6 +52,7 @@
 #include <linux/namei.h>
 #include <linux/mount.h>
 #include <linux/module.h>
+#include <linux/nfs_idmap.h>
 #include <linux/sunrpc/bc_xprt.h>
 #include <linux/xattr.h>
 #include <linux/utsname.h>
@@ -364,9 +365,8 @@ static void renew_lease(const struct nfs_server *server, unsigned long timestamp
  * Must be called while holding tbl->slot_tbl_lock
  */
 static void
-nfs4_free_slot(struct nfs4_slot_table *tbl, struct nfs4_slot *free_slot)
+nfs4_free_slot(struct nfs4_slot_table *tbl, u8 free_slotid)
 {
-	int free_slotid = free_slot - tbl->slots;
 	int slotid = free_slotid;
 
 	BUG_ON(slotid < 0 || slotid >= NFS4_MAX_SLOT_TABLE);
@@ -431,7 +431,7 @@ static void nfs41_sequence_free_slot(struct nfs4_sequence_res *res)
 	}
 
 	spin_lock(&tbl->slot_tbl_lock);
-	nfs4_free_slot(tbl, res->sr_slot);
+	nfs4_free_slot(tbl, res->sr_slot - tbl->slots);
 	nfs4_check_drain_fc_complete(res->sr_session);
 	spin_unlock(&tbl->slot_tbl_lock);
 	res->sr_slot = NULL;
@@ -554,13 +554,10 @@ int nfs41_setup_sequence(struct nfs4_session *session,
 	spin_lock(&tbl->slot_tbl_lock);
 	if (test_bit(NFS4_SESSION_DRAINING, &session->session_state) &&
 	    !rpc_task_has_priority(task, RPC_PRIORITY_PRIVILEGED)) {
-		/*
-		 * The state manager will wait until the slot table is empty.
-		 * Schedule the reset thread
-		 */
+		/* The state manager will wait until the slot table is empty */
 		rpc_sleep_on(&tbl->slot_tbl_waitq, task, NULL);
 		spin_unlock(&tbl->slot_tbl_lock);
-		dprintk("%s Schedule Session Reset\n", __func__);
+		dprintk("%s session is draining\n", __func__);
 		return -EAGAIN;
 	}
 
@@ -765,6 +762,8 @@ struct nfs4_opendata {
 	struct nfs_openres o_res;
 	struct nfs_open_confirmargs c_arg;
 	struct nfs_open_confirmres c_res;
+	struct nfs4_string owner_name;
+	struct nfs4_string group_name;
 	struct nfs_fattr f_attr;
 	struct nfs_fattr dir_attr;
 	struct dentry *dir;
@@ -788,6 +787,7 @@ static void nfs4_init_opendata_res(struct nfs4_opendata *p)
 	p->o_res.server = p->o_arg.server;
 	nfs_fattr_init(&p->f_attr);
 	nfs_fattr_init(&p->dir_attr);
+	nfs_fattr_init_names(&p->f_attr, &p->owner_name, &p->group_name);
 }
 
 static struct nfs4_opendata *nfs4_opendata_alloc(struct dentry *dentry,
@@ -819,6 +819,7 @@ static struct nfs4_opendata *nfs4_opendata_alloc(struct dentry *dentry,
 	p->o_arg.name = &dentry->d_name;
 	p->o_arg.server = server;
 	p->o_arg.bitmask = server->attr_bitmask;
+	p->o_arg.dir_bitmask = server->cache_consistency_bitmask;
 	p->o_arg.claim = NFS4_OPEN_CLAIM_NULL;
 	if (flags & O_CREAT) {
 		u32 *s;
@@ -855,6 +856,7 @@ static void nfs4_opendata_free(struct kref *kref)
 	dput(p->dir);
 	dput(p->dentry);
 	nfs_sb_deactive(sb);
+	nfs_fattr_free_names(&p->f_attr);
 	kfree(p);
 }
 
@@ -1579,6 +1581,8 @@ static int _nfs4_recover_proc_open(struct nfs4_opendata *data)
 	if (status != 0 || !data->rpc_done)
 		return status;
 
+	nfs_fattr_map_and_free_names(NFS_SERVER(dir), &data->f_attr);
+
 	nfs_refresh_inode(dir, o_res->dir_attr);
 
 	if (o_res->rflags & NFS4_OPEN_RESULT_CONFIRM) {
@@ -1611,6 +1615,8 @@ static int _nfs4_proc_open(struct nfs4_opendata *data)
 		return status;
 	}
 
+	nfs_fattr_map_and_free_names(server, &data->f_attr);
+
 	if (o_arg->open_flags & O_CREAT) {
 		update_changeattr(dir, &o_res->cinfo);
 		nfs_post_op_update_inode(dir, o_res->dir_attr);
@@ -3431,19 +3437,6 @@ static inline int nfs4_server_supports_acls(struct nfs_server *server)
  */
 #define NFS4ACL_MAXPAGES (XATTR_SIZE_MAX >> PAGE_CACHE_SHIFT)
 
-static void buf_to_pages(const void *buf, size_t buflen,
-		struct page **pages, unsigned int *pgbase)
-{
-	const void *p = buf;
-
-	*pgbase = offset_in_page(buf);
-	p -= *pgbase;
-	while (p < buf + buflen) {
-		*(pages++) = virt_to_page(p);
-		p += PAGE_CACHE_SIZE;
-	}
-}
-
 static int buf_to_pages_noslab(const void *buf, size_t buflen,
 		struct page **pages, unsigned int *pgbase)
 {
@@ -3540,9 +3533,19 @@ out:
 	nfs4_set_cached_acl(inode, acl);
 }
 
+/*
+ * The getxattr API returns the required buffer length when called with a
+ * NULL buf. The NFSv4 acl tool then calls getxattr again after allocating
+ * the required buf.  On a NULL buf, we send a page of data to the server
+ * guessing that the ACL request can be serviced by a page. If so, we cache
+ * up to the page of ACL data, and the 2nd call to getxattr is serviced by
+ * the cache. If not so, we throw away the page, and cache the required
+ * length. The next getxattr call will then produce another round trip to
+ * the server, this time with the input buf of the required size.
+ */
 static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t buflen)
 {
-	struct page *pages[NFS4ACL_MAXPAGES];
+	struct page *pages[NFS4ACL_MAXPAGES] = {NULL, };
 	struct nfs_getaclargs args = {
 		.fh = NFS_FH(inode),
 		.acl_pages = pages,
@@ -3557,41 +3560,60 @@ static ssize_t __nfs4_get_acl_uncached(struct inode *inode, void *buf, size_t bu
 		.rpc_argp = &args,
 		.rpc_resp = &res,
 	};
-	struct page *localpage = NULL;
-	int ret;
+	int ret = -ENOMEM, npages, i, acl_len = 0;
 
-	if (buflen < PAGE_SIZE) {
-		/* As long as we're doing a round trip to the server anyway,
-		 * let's be prepared for a page of acl data. */
-		localpage = alloc_page(GFP_KERNEL);
-		resp_buf = page_address(localpage);
-		if (localpage == NULL)
-			return -ENOMEM;
-		args.acl_pages[0] = localpage;
-		args.acl_pgbase = 0;
-		args.acl_len = PAGE_SIZE;
-	} else {
-		resp_buf = buf;
-		buf_to_pages(buf, buflen, args.acl_pages, &args.acl_pgbase);
+	npages = (buflen + PAGE_SIZE - 1) >> PAGE_SHIFT;
+	/* As long as we're doing a round trip to the server anyway,
+	 * let's be prepared for a page of acl data. */
+	if (npages == 0)
+		npages = 1;
+
+	for (i = 0; i < npages; i++) {
+		pages[i] = alloc_page(GFP_KERNEL);
+		if (!pages[i])
+			goto out_free;
 	}
-	ret = nfs4_call_sync(NFS_SERVER(inode)->client, NFS_SERVER(inode), &msg, &args.seq_args, &res.seq_res, 0);
+	if (npages > 1) {
+		/* for decoding across pages */
+		args.acl_scratch = alloc_page(GFP_KERNEL);
+		if (!args.acl_scratch)
+			goto out_free;
+	}
+	args.acl_len = npages * PAGE_SIZE;
+	args.acl_pgbase = 0;
+	/* Let decode_getfacl know not to fail if the ACL data is larger than
+	 * the page we send as a guess */
+	if (buf == NULL)
+		res.acl_flags |= NFS4_ACL_LEN_REQUEST;
+	resp_buf = page_address(pages[0]);
+
+	dprintk("%s  buf %p buflen %ld npages %d args.acl_len %ld\n",
+		__func__, buf, buflen, npages, args.acl_len);
+	ret = nfs4_call_sync(NFS_SERVER(inode)->client, NFS_SERVER(inode),
+			     &msg, &args.seq_args, &res.seq_res, 0);
 	if (ret)
 		goto out_free;
-	if (res.acl_len > args.acl_len)
-		nfs4_write_cached_acl(inode, NULL, res.acl_len);
+
+	acl_len = res.acl_len - res.acl_data_offset;
+	if (acl_len > args.acl_len)
+		nfs4_write_cached_acl(inode, NULL, acl_len);
 	else
-		nfs4_write_cached_acl(inode, resp_buf, res.acl_len);
+		nfs4_write_cached_acl(inode, resp_buf + res.acl_data_offset,
+				      acl_len);
 	if (buf) {
 		ret = -ERANGE;
-		if (res.acl_len > buflen)
+		if (acl_len > buflen)
 			goto out_free;
-		if (localpage)
-			memcpy(buf, resp_buf, res.acl_len);
+		_copy_from_pages(buf, pages, res.acl_data_offset,
+				res.acl_len);
 	}
-	ret = res.acl_len;
+	ret = acl_len;
 out_free:
-	if (localpage)
-		__free_page(localpage);
+	for (i = 0; i < npages; i++)
+		if (pages[i])
+			__free_page(pages[i]);
+	if (args.acl_scratch)
+		__free_page(args.acl_scratch);
 	return ret;
 }
 
@@ -3622,6 +3644,8 @@ static ssize_t nfs4_proc_get_acl(struct inode *inode, void *buf, size_t buflen)
 		nfs_zap_acl_cache(inode);
 	ret = nfs4_read_cached_acl(inode, buf, buflen);
 	if (ret != -ENOENT)
+		/* -ENOENT is returned if there is no ACL or if there is an ACL
+		 * but no cached acl data, just the acl length */
 		return ret;
 	return nfs4_get_acl_uncached(inode, buf, buflen);
 }
@@ -5022,23 +5046,6 @@ out:
 	return ret;
 }
 
-/*
- * Reset the forechannel and backchannel slot tables
- */
-static int nfs4_reset_slot_tables(struct nfs4_session *session)
-{
-	int status;
-
-	status = nfs4_reset_slot_table(&session->fc_slot_table,
-			session->fc_attrs.max_reqs, 1);
-	if (status)
-		return status;
-
-	status = nfs4_reset_slot_table(&session->bc_slot_table,
-			session->bc_attrs.max_reqs, 0);
-	return status;
-}
-
 /* Destroy the slot table */
 static void nfs4_destroy_slot_tables(struct nfs4_session *session)
 {
@@ -5084,29 +5091,35 @@ out:
 }
 
 /*
- * Initialize the forechannel and backchannel tables
+ * Initialize or reset the forechannel and backchannel tables
  */
-static int nfs4_init_slot_tables(struct nfs4_session *session)
+static int nfs4_setup_session_slot_tables(struct nfs4_session *ses)
 {
 	struct nfs4_slot_table *tbl;
-	int status = 0;
+	int status;
 
-	tbl = &session->fc_slot_table;
+	dprintk("--> %s\n", __func__);
+	/* Fore channel */
+	tbl = &ses->fc_slot_table;
 	if (tbl->slots == NULL) {
-		status = nfs4_init_slot_table(tbl,
-				session->fc_attrs.max_reqs, 1);
+		status = nfs4_init_slot_table(tbl, ses->fc_attrs.max_reqs, 1);
+		if (status) /* -ENOMEM */
+			return status;
+	} else {
+		status = nfs4_reset_slot_table(tbl, ses->fc_attrs.max_reqs, 1);
 		if (status)
 			return status;
 	}
-
-	tbl = &session->bc_slot_table;
+	/* Back channel */
+	tbl = &ses->bc_slot_table;
 	if (tbl->slots == NULL) {
-		status = nfs4_init_slot_table(tbl,
-				session->bc_attrs.max_reqs, 0);
+		status = nfs4_init_slot_table(tbl, ses->bc_attrs.max_reqs, 0);
 		if (status)
-			nfs4_destroy_slot_tables(session);
-	}
-
+			/* Fore and back channel share a connection so get
+			 * both slot tables or neither */
+			nfs4_destroy_slot_tables(ses);
+	} else
+		status = nfs4_reset_slot_table(tbl, ses->bc_attrs.max_reqs, 0);
 	return status;
 }
 
@@ -5294,13 +5307,9 @@ int nfs4_proc_create_session(struct nfs_client *clp)
 	if (status)
 		goto out;
 
-	/* Init and reset the fore channel */
-	status = nfs4_init_slot_tables(session);
-	dprintk("slot table initialization returned %d\n", status);
-	if (status)
-		goto out;
-	status = nfs4_reset_slot_tables(session);
-	dprintk("slot table reset returned %d\n", status);
+	/* Init or reset the session slot tables */
+	status = nfs4_setup_session_slot_tables(session);
+	dprintk("slot table setup returned %d\n", status);
 	if (status)
 		goto out;
 
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 6a7107ae6b72..a53f33b4ac3a 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -49,6 +49,7 @@
 #include <linux/ratelimit.h>
 #include <linux/workqueue.h>
 #include <linux/bitops.h>
+#include <linux/jiffies.h>
 
 #include "nfs4_fs.h"
 #include "callback.h"
@@ -377,31 +378,24 @@ nfs4_find_state_owner_locked(struct nfs_server *server, struct rpc_cred *cred)
 {
 	struct rb_node **p = &server->state_owners.rb_node,
 		       *parent = NULL;
-	struct nfs4_state_owner *sp, *res = NULL;
+	struct nfs4_state_owner *sp;
 
 	while (*p != NULL) {
 		parent = *p;
 		sp = rb_entry(parent, struct nfs4_state_owner, so_server_node);
 
-		if (server < sp->so_server) {
-			p = &parent->rb_left;
-			continue;
-		}
-		if (server > sp->so_server) {
-			p = &parent->rb_right;
-			continue;
-		}
 		if (cred < sp->so_cred)
 			p = &parent->rb_left;
 		else if (cred > sp->so_cred)
 			p = &parent->rb_right;
 		else {
+			if (!list_empty(&sp->so_lru))
+				list_del_init(&sp->so_lru);
 			atomic_inc(&sp->so_count);
-			res = sp;
-			break;
+			return sp;
 		}
 	}
-	return res;
+	return NULL;
 }
 
 static struct nfs4_state_owner *
@@ -421,6 +415,8 @@ nfs4_insert_state_owner_locked(struct nfs4_state_owner *new)
 		else if (new->so_cred > sp->so_cred)
 			p = &parent->rb_right;
 		else {
+			if (!list_empty(&sp->so_lru))
+				list_del_init(&sp->so_lru);
 			atomic_inc(&sp->so_count);
 			return sp;
 		}
@@ -462,6 +458,7 @@ nfs4_alloc_state_owner(void)
 	spin_lock_init(&sp->so_sequence.lock);
 	INIT_LIST_HEAD(&sp->so_sequence.list);
 	atomic_set(&sp->so_count, 1);
+	INIT_LIST_HEAD(&sp->so_lru);
 	return sp;
 }
 
@@ -479,6 +476,38 @@ nfs4_drop_state_owner(struct nfs4_state_owner *sp)
 	}
 }
 
+static void nfs4_free_state_owner(struct nfs4_state_owner *sp)
+{
+	rpc_destroy_wait_queue(&sp->so_sequence.wait);
+	put_rpccred(sp->so_cred);
+	kfree(sp);
+}
+
+static void nfs4_gc_state_owners(struct nfs_server *server)
+{
+	struct nfs_client *clp = server->nfs_client;
+	struct nfs4_state_owner *sp, *tmp;
+	unsigned long time_min, time_max;
+	LIST_HEAD(doomed);
+
+	spin_lock(&clp->cl_lock);
+	time_max = jiffies;
+	time_min = (long)time_max - (long)clp->cl_lease_time;
+	list_for_each_entry_safe(sp, tmp, &server->state_owners_lru, so_lru) {
+		/* NB: LRU is sorted so that oldest is at the head */
+		if (time_in_range(sp->so_expires, time_min, time_max))
+			break;
+		list_move(&sp->so_lru, &doomed);
+		nfs4_remove_state_owner_locked(sp);
+	}
+	spin_unlock(&clp->cl_lock);
+
+	list_for_each_entry_safe(sp, tmp, &doomed, so_lru) {
+		list_del(&sp->so_lru);
+		nfs4_free_state_owner(sp);
+	}
+}
+
 /**
  * nfs4_get_state_owner - Look up a state owner given a credential
  * @server: nfs_server to search
@@ -496,10 +525,10 @@ struct nfs4_state_owner *nfs4_get_state_owner(struct nfs_server *server,
 	sp = nfs4_find_state_owner_locked(server, cred);
 	spin_unlock(&clp->cl_lock);
 	if (sp != NULL)
-		return sp;
+		goto out;
 	new = nfs4_alloc_state_owner();
 	if (new == NULL)
-		return NULL;
+		goto out;
 	new->so_server = server;
 	new->so_cred = cred;
 	spin_lock(&clp->cl_lock);
@@ -511,26 +540,58 @@ struct nfs4_state_owner *nfs4_get_state_owner(struct nfs_server *server,
 		rpc_destroy_wait_queue(&new->so_sequence.wait);
 		kfree(new);
 	}
+out:
+	nfs4_gc_state_owners(server);
 	return sp;
 }
 
 /**
  * nfs4_put_state_owner - Release a nfs4_state_owner
  * @sp: state owner data to release
- *
  */
 void nfs4_put_state_owner(struct nfs4_state_owner *sp)
 {
-	struct nfs_client *clp = sp->so_server->nfs_client;
-	struct rpc_cred *cred = sp->so_cred;
+	struct nfs_server *server = sp->so_server;
+	struct nfs_client *clp = server->nfs_client;
 
 	if (!atomic_dec_and_lock(&sp->so_count, &clp->cl_lock))
 		return;
-	nfs4_remove_state_owner_locked(sp);
+
+	if (!RB_EMPTY_NODE(&sp->so_server_node)) {
+		sp->so_expires = jiffies;
+		list_add_tail(&sp->so_lru, &server->state_owners_lru);
+		spin_unlock(&clp->cl_lock);
+	} else {
+		nfs4_remove_state_owner_locked(sp);
+		spin_unlock(&clp->cl_lock);
+		nfs4_free_state_owner(sp);
+	}
+}
+
+/**
+ * nfs4_purge_state_owners - Release all cached state owners
+ * @server: nfs_server with cached state owners to release
+ *
+ * Called at umount time.  Remaining state owners will be on
+ * the LRU with ref count of zero.
+ */
+void nfs4_purge_state_owners(struct nfs_server *server)
+{
+	struct nfs_client *clp = server->nfs_client;
+	struct nfs4_state_owner *sp, *tmp;
+	LIST_HEAD(doomed);
+
+	spin_lock(&clp->cl_lock);
+	list_for_each_entry_safe(sp, tmp, &server->state_owners_lru, so_lru) {
+		list_move(&sp->so_lru, &doomed);
+		nfs4_remove_state_owner_locked(sp);
+	}
 	spin_unlock(&clp->cl_lock);
-	rpc_destroy_wait_queue(&sp->so_sequence.wait);
-	put_rpccred(cred);
-	kfree(sp);
+
+	list_for_each_entry_safe(sp, tmp, &doomed, so_lru) {
+		list_del(&sp->so_lru);
+		nfs4_free_state_owner(sp);
+	}
 }
 
 static struct nfs4_state *
@@ -1402,6 +1463,7 @@ static int nfs4_do_reclaim(struct nfs_client *clp, const struct nfs4_state_recov
 restart:
 	rcu_read_lock();
 	list_for_each_entry_rcu(server, &clp->cl_superblocks, client_link) {
+		nfs4_purge_state_owners(server);
 		spin_lock(&clp->cl_lock);
 		for (pos = rb_first(&server->state_owners);
 		     pos != NULL;
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index e6161b213ed1..95e92e438407 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -2298,7 +2298,7 @@ static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr,
 	encode_getfh(xdr, &hdr);
 	encode_getfattr(xdr, args->bitmask, &hdr);
 	encode_restorefh(xdr, &hdr);
-	encode_getfattr(xdr, args->bitmask, &hdr);
+	encode_getfattr(xdr, args->dir_bitmask, &hdr);
 	encode_nops(&hdr);
 }
 
@@ -2517,11 +2517,13 @@ static void nfs4_xdr_enc_getacl(struct rpc_rqst *req, struct xdr_stream *xdr,
 	encode_compound_hdr(xdr, req, &hdr);
 	encode_sequence(xdr, &args->seq_args, &hdr);
 	encode_putfh(xdr, args->fh, &hdr);
-	replen = hdr.replen + op_decode_hdr_maxsz + nfs4_fattr_bitmap_maxsz + 1;
+	replen = hdr.replen + op_decode_hdr_maxsz + 1;
 	encode_getattr_two(xdr, FATTR4_WORD0_ACL, 0, &hdr);
 
 	xdr_inline_pages(&req->rq_rcv_buf, replen << 2,
 		args->acl_pages, args->acl_pgbase, args->acl_len);
+	xdr_set_scratch_buffer(xdr, page_address(args->acl_scratch), PAGE_SIZE);
+
 	encode_nops(&hdr);
 }
 
@@ -3790,7 +3792,8 @@ out_overflow:
 }
 
 static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap,
-		const struct nfs_server *server, uint32_t *uid, int may_sleep)
+		const struct nfs_server *server, uint32_t *uid,
+		struct nfs4_string *owner_name)
 {
 	uint32_t len;
 	__be32 *p;
@@ -3807,8 +3810,12 @@ static int decode_attr_owner(struct xdr_stream *xdr, uint32_t *bitmap,
 		p = xdr_inline_decode(xdr, len);
 		if (unlikely(!p))
 			goto out_overflow;
-		if (!may_sleep) {
-			/* do nothing */
+		if (owner_name != NULL) {
+			owner_name->data = kmemdup(p, len, GFP_NOWAIT);
+			if (owner_name->data != NULL) {
+				owner_name->len = len;
+				ret = NFS_ATTR_FATTR_OWNER_NAME;
+			}
 		} else if (len < XDR_MAX_NETOBJ) {
 			if (nfs_map_name_to_uid(server, (char *)p, len, uid) == 0)
 				ret = NFS_ATTR_FATTR_OWNER;
@@ -3828,7 +3835,8 @@ out_overflow:
 }
 
 static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap,
-		const struct nfs_server *server, uint32_t *gid, int may_sleep)
+		const struct nfs_server *server, uint32_t *gid,
+		struct nfs4_string *group_name)
 {
 	uint32_t len;
 	__be32 *p;
@@ -3845,8 +3853,12 @@ static int decode_attr_group(struct xdr_stream *xdr, uint32_t *bitmap,
 		p = xdr_inline_decode(xdr, len);
 		if (unlikely(!p))
 			goto out_overflow;
-		if (!may_sleep) {
-			/* do nothing */
+		if (group_name != NULL) {
+			group_name->data = kmemdup(p, len, GFP_NOWAIT);
+			if (group_name->data != NULL) {
+				group_name->len = len;
+				ret = NFS_ATTR_FATTR_GROUP_NAME;
+			}
 		} else if (len < XDR_MAX_NETOBJ) {
 			if (nfs_map_group_to_gid(server, (char *)p, len, gid) == 0)
 				ret = NFS_ATTR_FATTR_GROUP;
@@ -4283,7 +4295,7 @@ xdr_error:
 
 static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap,
 		struct nfs_fattr *fattr, struct nfs_fh *fh,
-		const struct nfs_server *server, int may_sleep)
+		const struct nfs_server *server)
 {
 	int status;
 	umode_t fmode = 0;
@@ -4350,12 +4362,12 @@ static int decode_getfattr_attrs(struct xdr_stream *xdr, uint32_t *bitmap,
 		goto xdr_error;
 	fattr->valid |= status;
 
-	status = decode_attr_owner(xdr, bitmap, server, &fattr->uid, may_sleep);
+	status = decode_attr_owner(xdr, bitmap, server, &fattr->uid, fattr->owner_name);
 	if (status < 0)
 		goto xdr_error;
 	fattr->valid |= status;
 
-	status = decode_attr_group(xdr, bitmap, server, &fattr->gid, may_sleep);
+	status = decode_attr_group(xdr, bitmap, server, &fattr->gid, fattr->group_name);
 	if (status < 0)
 		goto xdr_error;
 	fattr->valid |= status;
@@ -4396,7 +4408,7 @@ xdr_error:
 }
 
 static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fattr,
-		struct nfs_fh *fh, const struct nfs_server *server, int may_sleep)
+		struct nfs_fh *fh, const struct nfs_server *server)
 {
 	__be32 *savep;
 	uint32_t attrlen,
@@ -4415,7 +4427,7 @@ static int decode_getfattr_generic(struct xdr_stream *xdr, struct nfs_fattr *fat
 	if (status < 0)
 		goto xdr_error;
 
-	status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, server, may_sleep);
+	status = decode_getfattr_attrs(xdr, bitmap, fattr, fh, server);
 	if (status < 0)
 		goto xdr_error;
 
@@ -4426,9 +4438,9 @@ xdr_error:
 }
 
 static int decode_getfattr(struct xdr_stream *xdr, struct nfs_fattr *fattr,
-		const struct nfs_server *server, int may_sleep)
+		const struct nfs_server *server)
 {
-	return decode_getfattr_generic(xdr, fattr, NULL, server, may_sleep);
+	return decode_getfattr_generic(xdr, fattr, NULL, server);
 }
 
 /*
@@ -4957,17 +4969,18 @@ decode_restorefh(struct xdr_stream *xdr)
 }
 
 static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req,
-		size_t *acl_len)
+			 struct nfs_getaclres *res)
 {
-	__be32 *savep;
+	__be32 *savep, *bm_p;
 	uint32_t attrlen,
 		 bitmap[3] = {0};
 	struct kvec *iov = req->rq_rcv_buf.head;
 	int status;
 
-	*acl_len = 0;
+	res->acl_len = 0;
 	if ((status = decode_op_hdr(xdr, OP_GETATTR)) != 0)
 		goto out;
+	bm_p = xdr->p;
 	if ((status = decode_attr_bitmap(xdr, bitmap)) != 0)
 		goto out;
 	if ((status = decode_attr_length(xdr, &attrlen, &savep)) != 0)
@@ -4979,18 +4992,30 @@ static int decode_getacl(struct xdr_stream *xdr, struct rpc_rqst *req,
 		size_t hdrlen;
 		u32 recvd;
 
+		/* The bitmap (xdr len + bitmaps) and the attr xdr len words
+		 * are stored with the acl data to handle the problem of
+		 * variable length bitmaps.*/
+		xdr->p = bm_p;
+		res->acl_data_offset = be32_to_cpup(bm_p) + 2;
+		res->acl_data_offset <<= 2;
+
 		/* We ignore &savep and don't do consistency checks on
 		 * the attr length.  Let userspace figure it out.... */
 		hdrlen = (u8 *)xdr->p - (u8 *)iov->iov_base;
+		attrlen += res->acl_data_offset;
 		recvd = req->rq_rcv_buf.len - hdrlen;
 		if (attrlen > recvd) {
-			dprintk("NFS: server cheating in getattr"
-					" acl reply: attrlen %u > recvd %u\n",
+			if (res->acl_flags & NFS4_ACL_LEN_REQUEST) {
+				/* getxattr interface called with a NULL buf */
+				res->acl_len = attrlen;
+				goto out;
+			}
+			dprintk("NFS: acl reply: attrlen %u > recvd %u\n",
 					attrlen, recvd);
 			return -EINVAL;
 		}
 		xdr_read_pages(xdr, attrlen);
-		*acl_len = attrlen;
+		res->acl_len = attrlen;
 	} else
 		status = -EOPNOTSUPP;
 
@@ -5696,8 +5721,7 @@ static int nfs4_xdr_dec_open_downgrade(struct rpc_rqst *rqstp,
 	status = decode_open_downgrade(xdr, res);
 	if (status != 0)
 		goto out;
-	decode_getfattr(xdr, res->fattr, res->server,
-			!RPC_IS_ASYNC(rqstp->rq_task));
+	decode_getfattr(xdr, res->fattr, res->server);
 out:
 	return status;
 }
@@ -5723,8 +5747,7 @@ static int nfs4_xdr_dec_access(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
 	status = decode_access(xdr, res);
 	if (status != 0)
 		goto out;
-	decode_getfattr(xdr, res->fattr, res->server,
-			!RPC_IS_ASYNC(rqstp->rq_task));
+	decode_getfattr(xdr, res->fattr, res->server);
 out:
 	return status;
 }
@@ -5753,8 +5776,7 @@ static int nfs4_xdr_dec_lookup(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
 	status = decode_getfh(xdr, res->fh);
 	if (status)
 		goto out;
-	status = decode_getfattr(xdr, res->fattr, res->server
-			,!RPC_IS_ASYNC(rqstp->rq_task));
+	status = decode_getfattr(xdr, res->fattr, res->server);
 out:
 	return status;
 }
@@ -5780,8 +5802,7 @@ static int nfs4_xdr_dec_lookup_root(struct rpc_rqst *rqstp,
 		goto out;
 	status = decode_getfh(xdr, res->fh);
 	if (status == 0)
-		status = decode_getfattr(xdr, res->fattr, res->server,
-				!RPC_IS_ASYNC(rqstp->rq_task));
+		status = decode_getfattr(xdr, res->fattr, res->server);
 out:
 	return status;
 }
@@ -5807,8 +5828,7 @@ static int nfs4_xdr_dec_remove(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
 	status = decode_remove(xdr, &res->cinfo);
 	if (status)
 		goto out;
-	decode_getfattr(xdr, res->dir_attr, res->server,
-			!RPC_IS_ASYNC(rqstp->rq_task));
+	decode_getfattr(xdr, res->dir_attr, res->server);
 out:
 	return status;
 }
@@ -5841,14 +5861,12 @@ static int nfs4_xdr_dec_rename(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
 	if (status)
 		goto out;
 	/* Current FH is target directory */
-	if (decode_getfattr(xdr, res->new_fattr, res->server,
-				!RPC_IS_ASYNC(rqstp->rq_task)) != 0)
+	if (decode_getfattr(xdr, res->new_fattr, res->server))
 		goto out;
 	status = decode_restorefh(xdr);
 	if (status)
 		goto out;
-	decode_getfattr(xdr, res->old_fattr, res->server,
-			!RPC_IS_ASYNC(rqstp->rq_task));
+	decode_getfattr(xdr, res->old_fattr, res->server);
 out:
 	return status;
 }
@@ -5884,14 +5902,12 @@ static int nfs4_xdr_dec_link(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
 	 * Note order: OP_LINK leaves the directory as the current
 	 *             filehandle.
 	 */
-	if (decode_getfattr(xdr, res->dir_attr, res->server,
-				!RPC_IS_ASYNC(rqstp->rq_task)) != 0)
+	if (decode_getfattr(xdr, res->dir_attr, res->server))
 		goto out;
 	status = decode_restorefh(xdr);
 	if (status)
 		goto out;
-	decode_getfattr(xdr, res->fattr, res->server,
-			!RPC_IS_ASYNC(rqstp->rq_task));
+	decode_getfattr(xdr, res->fattr, res->server);
 out:
 	return status;
 }
@@ -5923,14 +5939,12 @@ static int nfs4_xdr_dec_create(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
 	status = decode_getfh(xdr, res->fh);
 	if (status)
 		goto out;
-	if (decode_getfattr(xdr, res->fattr, res->server,
-				!RPC_IS_ASYNC(rqstp->rq_task)) != 0)
+	if (decode_getfattr(xdr, res->fattr, res->server))
 		goto out;
 	status = decode_restorefh(xdr);
 	if (status)
 		goto out;
-	decode_getfattr(xdr, res->dir_fattr, res->server,
-			!RPC_IS_ASYNC(rqstp->rq_task));
+	decode_getfattr(xdr, res->dir_fattr, res->server);
 out:
 	return status;
 }
@@ -5962,8 +5976,7 @@ static int nfs4_xdr_dec_getattr(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
 	status = decode_putfh(xdr);
 	if (status)
 		goto out;
-	status = decode_getfattr(xdr, res->fattr, res->server,
-			!RPC_IS_ASYNC(rqstp->rq_task));
+	status = decode_getfattr(xdr, res->fattr, res->server);
 out:
 	return status;
 }
@@ -6028,7 +6041,7 @@ nfs4_xdr_dec_getacl(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
 	status = decode_putfh(xdr);
 	if (status)
 		goto out;
-	status = decode_getacl(xdr, rqstp, &res->acl_len);
+	status = decode_getacl(xdr, rqstp, res);
 
 out:
 	return status;
@@ -6061,8 +6074,7 @@ static int nfs4_xdr_dec_close(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
 	 * 	an ESTALE error. Shouldn't be a problem,
 	 * 	though, since fattr->valid will remain unset.
 	 */
-	decode_getfattr(xdr, res->fattr, res->server,
-			!RPC_IS_ASYNC(rqstp->rq_task));
+	decode_getfattr(xdr, res->fattr, res->server);
 out:
 	return status;
 }
@@ -6093,13 +6105,11 @@ static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
 		goto out;
 	if (decode_getfh(xdr, &res->fh) != 0)
 		goto out;
-	if (decode_getfattr(xdr, res->f_attr, res->server,
-				!RPC_IS_ASYNC(rqstp->rq_task)) != 0)
+	if (decode_getfattr(xdr, res->f_attr, res->server) != 0)
 		goto out;
 	if (decode_restorefh(xdr) != 0)
 		goto out;
-	decode_getfattr(xdr, res->dir_attr, res->server,
-			!RPC_IS_ASYNC(rqstp->rq_task));
+	decode_getfattr(xdr, res->dir_attr, res->server);
 out:
 	return status;
 }
@@ -6147,8 +6157,7 @@ static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp,
 	status = decode_open(xdr, res);
 	if (status)
 		goto out;
-	decode_getfattr(xdr, res->f_attr, res->server,
-			!RPC_IS_ASYNC(rqstp->rq_task));
+	decode_getfattr(xdr, res->f_attr, res->server);
 out:
 	return status;
 }
@@ -6175,8 +6184,7 @@ static int nfs4_xdr_dec_setattr(struct rpc_rqst *rqstp,
 	status = decode_setattr(xdr);
 	if (status)
 		goto out;
-	decode_getfattr(xdr, res->fattr, res->server,
-			!RPC_IS_ASYNC(rqstp->rq_task));
+	decode_getfattr(xdr, res->fattr, res->server);
 out:
 	return status;
 }
@@ -6356,8 +6364,7 @@ static int nfs4_xdr_dec_write(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
 	if (status)
 		goto out;
 	if (res->fattr)
-		decode_getfattr(xdr, res->fattr, res->server,
-				!RPC_IS_ASYNC(rqstp->rq_task));
+		decode_getfattr(xdr, res->fattr, res->server);
 	if (!status)
 		status = res->count;
 out:
@@ -6386,8 +6393,7 @@ static int nfs4_xdr_dec_commit(struct rpc_rqst *rqstp, struct xdr_stream *xdr,
 	if (status)
 		goto out;
 	if (res->fattr)
-		decode_getfattr(xdr, res->fattr, res->server,
-				!RPC_IS_ASYNC(rqstp->rq_task));
+		decode_getfattr(xdr, res->fattr, res->server);
 out:
 	return status;
 }
@@ -6546,8 +6552,7 @@ static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp,
 	status = decode_delegreturn(xdr);
 	if (status != 0)
 		goto out;
-	decode_getfattr(xdr, res->fattr, res->server,
-			!RPC_IS_ASYNC(rqstp->rq_task));
+	decode_getfattr(xdr, res->fattr, res->server);
 out:
 	return status;
 }
@@ -6576,8 +6581,7 @@ static int nfs4_xdr_dec_fs_locations(struct rpc_rqst *req,
 		goto out;
 	xdr_enter_page(xdr, PAGE_SIZE);
 	status = decode_getfattr(xdr, &res->fs_locations->fattr,
-				 res->fs_locations->server,
-				 !RPC_IS_ASYNC(req->rq_task));
+				 res->fs_locations->server);
 out:
 	return status;
 }
@@ -6826,8 +6830,7 @@ static int nfs4_xdr_dec_layoutcommit(struct rpc_rqst *rqstp,
 	status = decode_layoutcommit(xdr, rqstp, res);
 	if (status)
 		goto out;
-	decode_getfattr(xdr, res->fattr, res->server,
-			!RPC_IS_ASYNC(rqstp->rq_task));
+	decode_getfattr(xdr, res->fattr, res->server);
 out:
 	return status;
 }
@@ -6958,7 +6961,7 @@ int nfs4_decode_dirent(struct xdr_stream *xdr, struct nfs_entry *entry,
 		goto out_overflow;
 
 	if (decode_getfattr_attrs(xdr, bitmap, entry->fattr, entry->fh,
-					entry->server, 1) < 0)
+					entry->server) < 0)
 		goto out_overflow;
 	if (entry->fattr->valid & NFS_ATTR_FATTR_MOUNTED_ON_FILEID)
 		entry->ino = entry->fattr->mounted_on_fileid;
diff --git a/fs/nfs/objlayout/objio_osd.c b/fs/nfs/objlayout/objio_osd.c
index c807ab93140e..55d01280a609 100644
--- a/fs/nfs/objlayout/objio_osd.c
+++ b/fs/nfs/objlayout/objio_osd.c
@@ -551,7 +551,8 @@ static const struct nfs_pageio_ops objio_pg_write_ops = {
 static struct pnfs_layoutdriver_type objlayout_type = {
 	.id = LAYOUT_OSD2_OBJECTS,
 	.name = "LAYOUT_OSD2_OBJECTS",
-	.flags                   = PNFS_LAYOUTRET_ON_SETATTR,
+	.flags                   = PNFS_LAYOUTRET_ON_SETATTR |
+				   PNFS_LAYOUTRET_ON_ERROR,
 
 	.alloc_layout_hdr        = objlayout_alloc_layout_hdr,
 	.free_layout_hdr         = objlayout_free_layout_hdr,
diff --git a/fs/nfs/objlayout/objlayout.c b/fs/nfs/objlayout/objlayout.c
index 72074e3a04f9..b3c29039f5b8 100644
--- a/fs/nfs/objlayout/objlayout.c
+++ b/fs/nfs/objlayout/objlayout.c
@@ -254,6 +254,8 @@ objlayout_read_done(struct objlayout_io_res *oir, ssize_t status, bool sync)
 	oir->status = rdata->task.tk_status = status;
 	if (status >= 0)
 		rdata->res.count = status;
+	else
+		rdata->pnfs_error = status;
 	objlayout_iodone(oir);
 	/* must not use oir after this point */
 
@@ -334,6 +336,8 @@ objlayout_write_done(struct objlayout_io_res *oir, ssize_t status, bool sync)
 	if (status >= 0) {
 		wdata->res.count = status;
 		wdata->verf.committed = oir->committed;
+	} else {
+		wdata->pnfs_error = status;
 	}
 	objlayout_iodone(oir);
 	/* must not use oir after this point */
diff --git a/fs/nfs/pnfs.c b/fs/nfs/pnfs.c
index 8e672a2b2d69..17149a490065 100644
--- a/fs/nfs/pnfs.c
+++ b/fs/nfs/pnfs.c
@@ -1166,6 +1166,33 @@ pnfs_generic_pg_test(struct nfs_pageio_descriptor *pgio, struct nfs_page *prev,
 }
 EXPORT_SYMBOL_GPL(pnfs_generic_pg_test);
 
+static int pnfs_write_done_resend_to_mds(struct inode *inode, struct list_head *head)
+{
+	struct nfs_pageio_descriptor pgio;
+	LIST_HEAD(failed);
+
+	/* Resend all requests through the MDS */
+	nfs_pageio_init_write_mds(&pgio, inode, FLUSH_STABLE);
+	while (!list_empty(head)) {
+		struct nfs_page *req = nfs_list_entry(head->next);
+
+		nfs_list_remove_request(req);
+		if (!nfs_pageio_add_request(&pgio, req))
+			nfs_list_add_request(req, &failed);
+	}
+	nfs_pageio_complete(&pgio);
+
+	if (!list_empty(&failed)) {
+		/* For some reason our attempt to resend pages. Mark the
+		 * overall send request as having failed, and let
+		 * nfs_writeback_release_full deal with the error.
+		 */
+		list_move(&failed, head);
+		return -EIO;
+	}
+	return 0;
+}
+
 /*
  * Called by non rpc-based layout drivers
  */
@@ -1175,9 +1202,17 @@ void pnfs_ld_write_done(struct nfs_write_data *data)
 		pnfs_set_layoutcommit(data);
 		data->mds_ops->rpc_call_done(&data->task, data);
 	} else {
-		put_lseg(data->lseg);
-		data->lseg = NULL;
 		dprintk("pnfs write error = %d\n", data->pnfs_error);
+		if (NFS_SERVER(data->inode)->pnfs_curr_ld->flags &
+						PNFS_LAYOUTRET_ON_ERROR) {
+			/* Don't lo_commit on error, Server will needs to
+			 * preform a file recovery.
+			 */
+			clear_bit(NFS_INO_LAYOUTCOMMIT,
+				  &NFS_I(data->inode)->flags);
+			pnfs_return_layout(data->inode);
+		}
+		data->task.tk_status = pnfs_write_done_resend_to_mds(data->inode, &data->pages);
 	}
 	data->mds_ops->rpc_release(data);
 }
@@ -1267,6 +1302,9 @@ static void pnfs_ld_handle_read_error(struct nfs_read_data *data)
 	put_lseg(data->lseg);
 	data->lseg = NULL;
 	dprintk("pnfs write error = %d\n", data->pnfs_error);
+	if (NFS_SERVER(data->inode)->pnfs_curr_ld->flags &
+						PNFS_LAYOUTRET_ON_ERROR)
+		pnfs_return_layout(data->inode);
 
 	nfs_pageio_init_read_mds(&pgio, data->inode);
 
diff --git a/fs/nfs/pnfs.h b/fs/nfs/pnfs.h
index 1509530cb111..53d593a0a4f2 100644
--- a/fs/nfs/pnfs.h
+++ b/fs/nfs/pnfs.h
@@ -68,6 +68,7 @@ enum {
 enum layoutdriver_policy_flags {
 	/* Should the pNFS client commit and return the layout upon a setattr */
 	PNFS_LAYOUTRET_ON_SETATTR	= 1 << 0,
+	PNFS_LAYOUTRET_ON_ERROR		= 1 << 1,
 };
 
 struct nfs4_deviceid_node;
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index e463967aafb8..3dfa4f112c0a 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -908,10 +908,24 @@ static struct nfs_parsed_mount_data *nfs_alloc_parsed_mount_data(unsigned int ve
 		data->auth_flavor_len	= 1;
 		data->version		= version;
 		data->minorversion	= 0;
+		security_init_mnt_opts(&data->lsm_opts);
 	}
 	return data;
 }
 
+static void nfs_free_parsed_mount_data(struct nfs_parsed_mount_data *data)
+{
+	if (data) {
+		kfree(data->client_address);
+		kfree(data->mount_server.hostname);
+		kfree(data->nfs_server.export_path);
+		kfree(data->nfs_server.hostname);
+		kfree(data->fscache_uniq);
+		security_free_mnt_opts(&data->lsm_opts);
+		kfree(data);
+	}
+}
+
 /*
  * Sanity-check a server address provided by the mount command.
  *
@@ -2219,9 +2233,7 @@ static struct dentry *nfs_fs_mount(struct file_system_type *fs_type,
 	data = nfs_alloc_parsed_mount_data(NFS_DEFAULT_VERSION);
 	mntfh = nfs_alloc_fhandle();
 	if (data == NULL || mntfh == NULL)
-		goto out_free_fh;
-
-	security_init_mnt_opts(&data->lsm_opts);
+		goto out;
 
 	/* Validate the mount data */
 	error = nfs_validate_mount_data(raw_data, data, mntfh, dev_name);
@@ -2233,8 +2245,6 @@ static struct dentry *nfs_fs_mount(struct file_system_type *fs_type,
 #ifdef CONFIG_NFS_V4
 	if (data->version == 4) {
 		mntroot = nfs4_try_mount(flags, dev_name, data);
-		kfree(data->client_address);
-		kfree(data->nfs_server.export_path);
 		goto out;
 	}
 #endif	/* CONFIG_NFS_V4 */
@@ -2289,13 +2299,8 @@ static struct dentry *nfs_fs_mount(struct file_system_type *fs_type,
 	s->s_flags |= MS_ACTIVE;
 
 out:
-	kfree(data->nfs_server.hostname);
-	kfree(data->mount_server.hostname);
-	kfree(data->fscache_uniq);
-	security_free_mnt_opts(&data->lsm_opts);
-out_free_fh:
+	nfs_free_parsed_mount_data(data);
 	nfs_free_fhandle(mntfh);
-	kfree(data);
 	return mntroot;
 
 out_err_nosb:
@@ -2622,9 +2627,7 @@ nfs4_remote_mount(struct file_system_type *fs_type, int flags,
 
 	mntfh = nfs_alloc_fhandle();
 	if (data == NULL || mntfh == NULL)
-		goto out_free_fh;
-
-	security_init_mnt_opts(&data->lsm_opts);
+		goto out;
 
 	/* Get a volume representation */
 	server = nfs4_create_server(data, mntfh);
@@ -2676,13 +2679,10 @@ nfs4_remote_mount(struct file_system_type *fs_type, int flags,
 
 	s->s_flags |= MS_ACTIVE;
 
-	security_free_mnt_opts(&data->lsm_opts);
 	nfs_free_fhandle(mntfh);
 	return mntroot;
 
 out:
-	security_free_mnt_opts(&data->lsm_opts);
-out_free_fh:
 	nfs_free_fhandle(mntfh);
 	return ERR_PTR(error);
 
@@ -2839,7 +2839,7 @@ static struct dentry *nfs4_mount(struct file_system_type *fs_type,
 
 	data = nfs_alloc_parsed_mount_data(4);
 	if (data == NULL)
-		goto out_free_data;
+		goto out;
 
 	/* Validate the mount data */
 	error = nfs4_validate_mount_data(raw_data, data, dev_name);
@@ -2853,12 +2853,7 @@ static struct dentry *nfs4_mount(struct file_system_type *fs_type,
 		error = PTR_ERR(res);
 
 out:
-	kfree(data->client_address);
-	kfree(data->nfs_server.export_path);
-	kfree(data->nfs_server.hostname);
-	kfree(data->fscache_uniq);
-out_free_data:
-	kfree(data);
+	nfs_free_parsed_mount_data(data);
 	dprintk("<-- nfs4_mount() = %d%s\n", error,
 			error != 0 ? " [error]" : "");
 	return res;
diff --git a/fs/nfs/write.c b/fs/nfs/write.c
index 1dda78db6a73..0c3885255f97 100644
--- a/fs/nfs/write.c
+++ b/fs/nfs/write.c
@@ -1052,7 +1052,7 @@ static const struct nfs_pageio_ops nfs_pageio_write_ops = {
 	.pg_doio = nfs_generic_pg_writepages,
 };
 
-static void nfs_pageio_init_write_mds(struct nfs_pageio_descriptor *pgio,
+void nfs_pageio_init_write_mds(struct nfs_pageio_descriptor *pgio,
 				  struct inode *inode, int ioflags)
 {
 	nfs_pageio_init(pgio, inode, &nfs_pageio_write_ops,
@@ -1166,13 +1166,7 @@ static void nfs_writeback_done_full(struct rpc_task *task, void *calldata)
 static void nfs_writeback_release_full(void *calldata)
 {
 	struct nfs_write_data	*data = calldata;
-	int ret, status = data->task.tk_status;
-	struct nfs_pageio_descriptor pgio;
-
-	if (data->pnfs_error) {
-		nfs_pageio_init_write_mds(&pgio, data->inode, FLUSH_STABLE);
-		pgio.pg_recoalesce = 1;
-	}
+	int status = data->task.tk_status;
 
 	/* Update attributes as result of writeback. */
 	while (!list_empty(&data->pages)) {
@@ -1188,11 +1182,6 @@ static void nfs_writeback_release_full(void *calldata)
 			req->wb_bytes,
 			(long long)req_offset(req));
 
-		if (data->pnfs_error) {
-			dprintk(", pnfs error = %d\n", data->pnfs_error);
-			goto next;
-		}
-
 		if (status < 0) {
 			nfs_set_pageerror(page);
 			nfs_context_set_write_error(req->wb_context, status);
@@ -1212,19 +1201,7 @@ remove_request:
 	next:
 		nfs_clear_page_tag_locked(req);
 		nfs_end_page_writeback(page);
-		if (data->pnfs_error) {
-			lock_page(page);
-			nfs_pageio_cond_complete(&pgio, page->index);
-			ret = nfs_page_async_flush(&pgio, page, 0);
-			if (ret) {
-				nfs_set_pageerror(page);
-				dprintk("rewrite to MDS error = %d\n", ret);
-			}
-			unlock_page(page);
-		}
 	}
-	if (data->pnfs_error)
-		nfs_pageio_complete(&pgio);
 	nfs_writedata_release(calldata);
 }
 
diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index 7748d6a18d97..6f3ebb48b12f 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -718,7 +718,7 @@ int set_callback_cred(void)
 {
 	if (callback_cred)
 		return 0;
-	callback_cred = rpc_lookup_machine_cred();
+	callback_cred = rpc_lookup_machine_cred("nfs");
 	if (!callback_cred)
 		return -ENOMEM;
 	return 0;
diff --git a/fs/nls/nls_base.c b/fs/nls/nls_base.c
index 44a88a9fa2c8..fea6bd5831dc 100644
--- a/fs/nls/nls_base.c
+++ b/fs/nls/nls_base.c
@@ -52,7 +52,7 @@ static const struct utf8_table utf8_table[] =
 #define SURROGATE_LOW	0x00000400
 #define SURROGATE_BITS	0x000003ff
 
-int utf8_to_utf32(const u8 *s, int len, unicode_t *pu)
+int utf8_to_utf32(const u8 *s, int inlen, unicode_t *pu)
 {
 	unsigned long l;
 	int c0, c, nc;
@@ -71,7 +71,7 @@ int utf8_to_utf32(const u8 *s, int len, unicode_t *pu)
 			*pu = (unicode_t) l;
 			return nc;
 		}
-		if (len <= nc)
+		if (inlen <= nc)
 			return -1;
 		s++;
 		c = (*s ^ 0x80) & 0xFF;
@@ -83,7 +83,7 @@ int utf8_to_utf32(const u8 *s, int len, unicode_t *pu)
 }
 EXPORT_SYMBOL(utf8_to_utf32);
 
-int utf32_to_utf8(unicode_t u, u8 *s, int maxlen)
+int utf32_to_utf8(unicode_t u, u8 *s, int maxout)
 {
 	unsigned long l;
 	int c, nc;
@@ -97,7 +97,7 @@ int utf32_to_utf8(unicode_t u, u8 *s, int maxlen)
 		return -1;
 
 	nc = 0;
-	for (t = utf8_table; t->cmask && maxlen; t++, maxlen--) {
+	for (t = utf8_table; t->cmask && maxout; t++, maxout--) {
 		nc++;
 		if (l <= t->lmask) {
 			c = t->shift;
@@ -114,34 +114,57 @@ int utf32_to_utf8(unicode_t u, u8 *s, int maxlen)
 }
 EXPORT_SYMBOL(utf32_to_utf8);
 
-int utf8s_to_utf16s(const u8 *s, int len, wchar_t *pwcs)
+static inline void put_utf16(wchar_t *s, unsigned c, enum utf16_endian endian)
+{
+	switch (endian) {
+	default:
+		*s = (wchar_t) c;
+		break;
+	case UTF16_LITTLE_ENDIAN:
+		*s = __cpu_to_le16(c);
+		break;
+	case UTF16_BIG_ENDIAN:
+		*s = __cpu_to_be16(c);
+		break;
+	}
+}
+
+int utf8s_to_utf16s(const u8 *s, int inlen, enum utf16_endian endian,
+		wchar_t *pwcs, int maxout)
 {
 	u16 *op;
 	int size;
 	unicode_t u;
 
 	op = pwcs;
-	while (*s && len > 0) {
+	while (inlen > 0 && maxout > 0 && *s) {
 		if (*s & 0x80) {
-			size = utf8_to_utf32(s, len, &u);
+			size = utf8_to_utf32(s, inlen, &u);
 			if (size < 0)
 				return -EINVAL;
+			s += size;
+			inlen -= size;
 
 			if (u >= PLANE_SIZE) {
+				if (maxout < 2)
+					break;
 				u -= PLANE_SIZE;
-				*op++ = (wchar_t) (SURROGATE_PAIR |
-						((u >> 10) & SURROGATE_BITS));
-				*op++ = (wchar_t) (SURROGATE_PAIR |
+				put_utf16(op++, SURROGATE_PAIR |
+						((u >> 10) & SURROGATE_BITS),
+						endian);
+				put_utf16(op++, SURROGATE_PAIR |
 						SURROGATE_LOW |
-						(u & SURROGATE_BITS));
+						(u & SURROGATE_BITS),
+						endian);
+				maxout -= 2;
 			} else {
-				*op++ = (wchar_t) u;
+				put_utf16(op++, u, endian);
+				maxout--;
 			}
-			s += size;
-			len -= size;
 		} else {
-			*op++ = *s++;
-			len--;
+			put_utf16(op++, *s++, endian);
+			inlen--;
+			maxout--;
 		}
 	}
 	return op - pwcs;
@@ -160,27 +183,27 @@ static inline unsigned long get_utf16(unsigned c, enum utf16_endian endian)
 	}
 }
 
-int utf16s_to_utf8s(const wchar_t *pwcs, int len, enum utf16_endian endian,
-		u8 *s, int maxlen)
+int utf16s_to_utf8s(const wchar_t *pwcs, int inlen, enum utf16_endian endian,
+		u8 *s, int maxout)
 {
 	u8 *op;
 	int size;
 	unsigned long u, v;
 
 	op = s;
-	while (len > 0 && maxlen > 0) {
+	while (inlen > 0 && maxout > 0) {
 		u = get_utf16(*pwcs, endian);
 		if (!u)
 			break;
 		pwcs++;
-		len--;
+		inlen--;
 		if (u > 0x7f) {
 			if ((u & SURROGATE_MASK) == SURROGATE_PAIR) {
 				if (u & SURROGATE_LOW) {
 					/* Ignore character and move on */
 					continue;
 				}
-				if (len <= 0)
+				if (inlen <= 0)
 					break;
 				v = get_utf16(*pwcs, endian);
 				if ((v & SURROGATE_MASK) != SURROGATE_PAIR ||
@@ -191,18 +214,18 @@ int utf16s_to_utf8s(const wchar_t *pwcs, int len, enum utf16_endian endian,
 				u = PLANE_SIZE + ((u & SURROGATE_BITS) << 10)
 						+ (v & SURROGATE_BITS);
 				pwcs++;
-				len--;
+				inlen--;
 			}
-			size = utf32_to_utf8(u, op, maxlen);
+			size = utf32_to_utf8(u, op, maxout);
 			if (size == -1) {
 				/* Ignore character and move on */
 			} else {
 				op += size;
-				maxlen -= size;
+				maxout -= size;
 			}
 		} else {
 			*op++ = (u8) u;
-			maxlen--;
+			maxout--;
 		}
 	}
 	return op - s;
diff --git a/fs/ocfs2/stack_user.c b/fs/ocfs2/stack_user.c
index a5ebe421195f..286edf1e231f 100644
--- a/fs/ocfs2/stack_user.c
+++ b/fs/ocfs2/stack_user.c
@@ -827,8 +827,8 @@ static int user_cluster_connect(struct ocfs2_cluster_connection *conn)
 		goto out;
 	}
 
-	rc = dlm_new_lockspace(conn->cc_name, strlen(conn->cc_name),
-			       &fsdlm, DLM_LSFL_FS, DLM_LVB_LEN);
+	rc = dlm_new_lockspace(conn->cc_name, NULL, DLM_LSFL_FS, DLM_LVB_LEN,
+			       NULL, NULL, NULL, &fsdlm);
 	if (rc) {
 		ocfs2_live_connection_drop(control);
 		goto out;
diff --git a/fs/proc/base.c b/fs/proc/base.c
index a1dddda999f2..8173dfd89cb2 100644
--- a/fs/proc/base.c
+++ b/fs/proc/base.c
@@ -83,9 +83,11 @@
 #include <linux/pid_namespace.h>
 #include <linux/fs_struct.h>
 #include <linux/slab.h>
+#include <linux/flex_array.h>
 #ifdef CONFIG_HARDWALL
 #include <asm/hardwall.h>
 #endif
+#include <trace/events/oom.h>
 #include "internal.h"
 
 /* NOTE:
@@ -133,6 +135,8 @@ struct pid_entry {
 		NULL, &proc_single_file_operations,	\
 		{ .proc_show = show } )
 
+static int proc_fd_permission(struct inode *inode, int mask);
+
 /*
  * Count the number of hardlinks for the pid_entry table, excluding the .
  * and .. links.
@@ -165,9 +169,9 @@ static int get_task_root(struct task_struct *task, struct path *root)
 	return result;
 }
 
-static int proc_cwd_link(struct inode *inode, struct path *path)
+static int proc_cwd_link(struct dentry *dentry, struct path *path)
 {
-	struct task_struct *task = get_proc_task(inode);
+	struct task_struct *task = get_proc_task(dentry->d_inode);
 	int result = -ENOENT;
 
 	if (task) {
@@ -182,9 +186,9 @@ static int proc_cwd_link(struct inode *inode, struct path *path)
 	return result;
 }
 
-static int proc_root_link(struct inode *inode, struct path *path)
+static int proc_root_link(struct dentry *dentry, struct path *path)
 {
-	struct task_struct *task = get_proc_task(inode);
+	struct task_struct *task = get_proc_task(dentry->d_inode);
 	int result = -ENOENT;
 
 	if (task) {
@@ -627,6 +631,50 @@ int proc_setattr(struct dentry *dentry, struct iattr *attr)
 	return 0;
 }
 
+/*
+ * May current process learn task's sched/cmdline info (for hide_pid_min=1)
+ * or euid/egid (for hide_pid_min=2)?
+ */
+static bool has_pid_permissions(struct pid_namespace *pid,
+				 struct task_struct *task,
+				 int hide_pid_min)
+{
+	if (pid->hide_pid < hide_pid_min)
+		return true;
+	if (in_group_p(pid->pid_gid))
+		return true;
+	return ptrace_may_access(task, PTRACE_MODE_READ);
+}
+
+
+static int proc_pid_permission(struct inode *inode, int mask)
+{
+	struct pid_namespace *pid = inode->i_sb->s_fs_info;
+	struct task_struct *task;
+	bool has_perms;
+
+	task = get_proc_task(inode);
+	has_perms = has_pid_permissions(pid, task, 1);
+	put_task_struct(task);
+
+	if (!has_perms) {
+		if (pid->hide_pid == 2) {
+			/*
+			 * Let's make getdents(), stat(), and open()
+			 * consistent with each other.  If a process
+			 * may not stat() a file, it shouldn't be seen
+			 * in procfs at all.
+			 */
+			return -ENOENT;
+		}
+
+		return -EPERM;
+	}
+	return generic_permission(inode, mask);
+}
+
+
+
 static const struct inode_operations proc_def_inode_operations = {
 	.setattr	= proc_setattr,
 };
@@ -1010,6 +1058,7 @@ static ssize_t oom_adjust_write(struct file *file, const char __user *buf,
 	else
 		task->signal->oom_score_adj = (oom_adjust * OOM_SCORE_ADJ_MAX) /
 								-OOM_DISABLE;
+	trace_oom_score_adj_update(task);
 err_sighand:
 	unlock_task_sighand(task, &flags);
 err_task_lock:
@@ -1097,6 +1146,7 @@ static ssize_t oom_score_adj_write(struct file *file, const char __user *buf,
 	task->signal->oom_score_adj = oom_score_adj;
 	if (has_capability_noaudit(current, CAP_SYS_RESOURCE))
 		task->signal->oom_score_adj_min = oom_score_adj;
+	trace_oom_score_adj_update(task);
 	/*
 	 * Scale /proc/pid/oom_adj appropriately ensuring that OOM_DISABLE is
 	 * always attainable.
@@ -1453,13 +1503,13 @@ static const struct file_operations proc_pid_set_comm_operations = {
 	.release	= single_release,
 };
 
-static int proc_exe_link(struct inode *inode, struct path *exe_path)
+static int proc_exe_link(struct dentry *dentry, struct path *exe_path)
 {
 	struct task_struct *task;
 	struct mm_struct *mm;
 	struct file *exe_file;
 
-	task = get_proc_task(inode);
+	task = get_proc_task(dentry->d_inode);
 	if (!task)
 		return -ENOENT;
 	mm = get_task_mm(task);
@@ -1489,7 +1539,7 @@ static void *proc_pid_follow_link(struct dentry *dentry, struct nameidata *nd)
 	if (!proc_fd_access_allowed(inode))
 		goto out;
 
-	error = PROC_I(inode)->op.proc_get_link(inode, &nd->path);
+	error = PROC_I(inode)->op.proc_get_link(dentry, &nd->path);
 out:
 	return ERR_PTR(error);
 }
@@ -1528,7 +1578,7 @@ static int proc_pid_readlink(struct dentry * dentry, char __user * buffer, int b
 	if (!proc_fd_access_allowed(inode))
 		goto out;
 
-	error = PROC_I(inode)->op.proc_get_link(inode, &path);
+	error = PROC_I(inode)->op.proc_get_link(dentry, &path);
 	if (error)
 		goto out;
 
@@ -1609,6 +1659,7 @@ int pid_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
 	struct inode *inode = dentry->d_inode;
 	struct task_struct *task;
 	const struct cred *cred;
+	struct pid_namespace *pid = dentry->d_sb->s_fs_info;
 
 	generic_fillattr(inode, stat);
 
@@ -1617,6 +1668,14 @@ int pid_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
 	stat->gid = 0;
 	task = pid_task(proc_pid(inode), PIDTYPE_PID);
 	if (task) {
+		if (!has_pid_permissions(pid, task, 2)) {
+			rcu_read_unlock();
+			/*
+			 * This doesn't prevent learning whether PID exists,
+			 * it only makes getattr() consistent with readdir().
+			 */
+			return -ENOENT;
+		}
 		if ((inode->i_mode == (S_IFDIR|S_IRUGO|S_IXUGO)) ||
 		    task_dumpable(task)) {
 			cred = __task_cred(task);
@@ -1820,9 +1879,9 @@ static int proc_fd_info(struct inode *inode, struct path *path, char *info)
 	return -ENOENT;
 }
 
-static int proc_fd_link(struct inode *inode, struct path *path)
+static int proc_fd_link(struct dentry *dentry, struct path *path)
 {
-	return proc_fd_info(inode, path, NULL);
+	return proc_fd_info(dentry->d_inode, path, NULL);
 }
 
 static int tid_fd_revalidate(struct dentry *dentry, struct nameidata *nd)
@@ -2043,6 +2102,355 @@ static const struct file_operations proc_fd_operations = {
 	.llseek		= default_llseek,
 };
 
+#ifdef CONFIG_CHECKPOINT_RESTORE
+
+/*
+ * dname_to_vma_addr - maps a dentry name into two unsigned longs
+ * which represent vma start and end addresses.
+ */
+static int dname_to_vma_addr(struct dentry *dentry,
+			     unsigned long *start, unsigned long *end)
+{
+	if (sscanf(dentry->d_name.name, "%lx-%lx", start, end) != 2)
+		return -EINVAL;
+
+	return 0;
+}
+
+static int map_files_d_revalidate(struct dentry *dentry, struct nameidata *nd)
+{
+	unsigned long vm_start, vm_end;
+	bool exact_vma_exists = false;
+	struct mm_struct *mm = NULL;
+	struct task_struct *task;
+	const struct cred *cred;
+	struct inode *inode;
+	int status = 0;
+
+	if (nd && nd->flags & LOOKUP_RCU)
+		return -ECHILD;
+
+	if (!capable(CAP_SYS_ADMIN)) {
+		status = -EACCES;
+		goto out_notask;
+	}
+
+	inode = dentry->d_inode;
+	task = get_proc_task(inode);
+	if (!task)
+		goto out_notask;
+
+	if (!ptrace_may_access(task, PTRACE_MODE_READ))
+		goto out;
+
+	mm = get_task_mm(task);
+	if (!mm)
+		goto out;
+
+	if (!dname_to_vma_addr(dentry, &vm_start, &vm_end)) {
+		down_read(&mm->mmap_sem);
+		exact_vma_exists = !!find_exact_vma(mm, vm_start, vm_end);
+		up_read(&mm->mmap_sem);
+	}
+
+	mmput(mm);
+
+	if (exact_vma_exists) {
+		if (task_dumpable(task)) {
+			rcu_read_lock();
+			cred = __task_cred(task);
+			inode->i_uid = cred->euid;
+			inode->i_gid = cred->egid;
+			rcu_read_unlock();
+		} else {
+			inode->i_uid = 0;
+			inode->i_gid = 0;
+		}
+		security_task_to_inode(task, inode);
+		status = 1;
+	}
+
+out:
+	put_task_struct(task);
+
+out_notask:
+	if (status <= 0)
+		d_drop(dentry);
+
+	return status;
+}
+
+static const struct dentry_operations tid_map_files_dentry_operations = {
+	.d_revalidate	= map_files_d_revalidate,
+	.d_delete	= pid_delete_dentry,
+};
+
+static int proc_map_files_get_link(struct dentry *dentry, struct path *path)
+{
+	unsigned long vm_start, vm_end;
+	struct vm_area_struct *vma;
+	struct task_struct *task;
+	struct mm_struct *mm;
+	int rc;
+
+	rc = -ENOENT;
+	task = get_proc_task(dentry->d_inode);
+	if (!task)
+		goto out;
+
+	mm = get_task_mm(task);
+	put_task_struct(task);
+	if (!mm)
+		goto out;
+
+	rc = dname_to_vma_addr(dentry, &vm_start, &vm_end);
+	if (rc)
+		goto out_mmput;
+
+	down_read(&mm->mmap_sem);
+	vma = find_exact_vma(mm, vm_start, vm_end);
+	if (vma && vma->vm_file) {
+		*path = vma->vm_file->f_path;
+		path_get(path);
+		rc = 0;
+	}
+	up_read(&mm->mmap_sem);
+
+out_mmput:
+	mmput(mm);
+out:
+	return rc;
+}
+
+struct map_files_info {
+	struct file	*file;
+	unsigned long	len;
+	unsigned char	name[4*sizeof(long)+2]; /* max: %lx-%lx\0 */
+};
+
+static struct dentry *
+proc_map_files_instantiate(struct inode *dir, struct dentry *dentry,
+			   struct task_struct *task, const void *ptr)
+{
+	const struct file *file = ptr;
+	struct proc_inode *ei;
+	struct inode *inode;
+
+	if (!file)
+		return ERR_PTR(-ENOENT);
+
+	inode = proc_pid_make_inode(dir->i_sb, task);
+	if (!inode)
+		return ERR_PTR(-ENOENT);
+
+	ei = PROC_I(inode);
+	ei->op.proc_get_link = proc_map_files_get_link;
+
+	inode->i_op = &proc_pid_link_inode_operations;
+	inode->i_size = 64;
+	inode->i_mode = S_IFLNK;
+
+	if (file->f_mode & FMODE_READ)
+		inode->i_mode |= S_IRUSR;
+	if (file->f_mode & FMODE_WRITE)
+		inode->i_mode |= S_IWUSR;
+
+	d_set_d_op(dentry, &tid_map_files_dentry_operations);
+	d_add(dentry, inode);
+
+	return NULL;
+}
+
+static struct dentry *proc_map_files_lookup(struct inode *dir,
+		struct dentry *dentry, struct nameidata *nd)
+{
+	unsigned long vm_start, vm_end;
+	struct vm_area_struct *vma;
+	struct task_struct *task;
+	struct dentry *result;
+	struct mm_struct *mm;
+
+	result = ERR_PTR(-EACCES);
+	if (!capable(CAP_SYS_ADMIN))
+		goto out;
+
+	result = ERR_PTR(-ENOENT);
+	task = get_proc_task(dir);
+	if (!task)
+		goto out;
+
+	result = ERR_PTR(-EACCES);
+	if (lock_trace(task))
+		goto out_put_task;
+
+	result = ERR_PTR(-ENOENT);
+	if (dname_to_vma_addr(dentry, &vm_start, &vm_end))
+		goto out_unlock;
+
+	mm = get_task_mm(task);
+	if (!mm)
+		goto out_unlock;
+
+	down_read(&mm->mmap_sem);
+	vma = find_exact_vma(mm, vm_start, vm_end);
+	if (!vma)
+		goto out_no_vma;
+
+	result = proc_map_files_instantiate(dir, dentry, task, vma->vm_file);
+
+out_no_vma:
+	up_read(&mm->mmap_sem);
+	mmput(mm);
+out_unlock:
+	unlock_trace(task);
+out_put_task:
+	put_task_struct(task);
+out:
+	return result;
+}
+
+static const struct inode_operations proc_map_files_inode_operations = {
+	.lookup		= proc_map_files_lookup,
+	.permission	= proc_fd_permission,
+	.setattr	= proc_setattr,
+};
+
+static int
+proc_map_files_readdir(struct file *filp, void *dirent, filldir_t filldir)
+{
+	struct dentry *dentry = filp->f_path.dentry;
+	struct inode *inode = dentry->d_inode;
+	struct vm_area_struct *vma;
+	struct task_struct *task;
+	struct mm_struct *mm;
+	ino_t ino;
+	int ret;
+
+	ret = -EACCES;
+	if (!capable(CAP_SYS_ADMIN))
+		goto out;
+
+	ret = -ENOENT;
+	task = get_proc_task(inode);
+	if (!task)
+		goto out;
+
+	ret = -EACCES;
+	if (lock_trace(task))
+		goto out_put_task;
+
+	ret = 0;
+	switch (filp->f_pos) {
+	case 0:
+		ino = inode->i_ino;
+		if (filldir(dirent, ".", 1, 0, ino, DT_DIR) < 0)
+			goto out_unlock;
+		filp->f_pos++;
+	case 1:
+		ino = parent_ino(dentry);
+		if (filldir(dirent, "..", 2, 1, ino, DT_DIR) < 0)
+			goto out_unlock;
+		filp->f_pos++;
+	default:
+	{
+		unsigned long nr_files, pos, i;
+		struct flex_array *fa = NULL;
+		struct map_files_info info;
+		struct map_files_info *p;
+
+		mm = get_task_mm(task);
+		if (!mm)
+			goto out_unlock;
+		down_read(&mm->mmap_sem);
+
+		nr_files = 0;
+
+		/*
+		 * We need two passes here:
+		 *
+		 *  1) Collect vmas of mapped files with mmap_sem taken
+		 *  2) Release mmap_sem and instantiate entries
+		 *
+		 * otherwise we get lockdep complained, since filldir()
+		 * routine might require mmap_sem taken in might_fault().
+		 */
+
+		for (vma = mm->mmap, pos = 2; vma; vma = vma->vm_next) {
+			if (vma->vm_file && ++pos > filp->f_pos)
+				nr_files++;
+		}
+
+		if (nr_files) {
+			fa = flex_array_alloc(sizeof(info), nr_files,
+						GFP_KERNEL);
+			if (!fa || flex_array_prealloc(fa, 0, nr_files,
+							GFP_KERNEL)) {
+				ret = -ENOMEM;
+				if (fa)
+					flex_array_free(fa);
+				up_read(&mm->mmap_sem);
+				mmput(mm);
+				goto out_unlock;
+			}
+			for (i = 0, vma = mm->mmap, pos = 2; vma;
+					vma = vma->vm_next) {
+				if (!vma->vm_file)
+					continue;
+				if (++pos <= filp->f_pos)
+					continue;
+
+				get_file(vma->vm_file);
+				info.file = vma->vm_file;
+				info.len = snprintf(info.name,
+						sizeof(info.name), "%lx-%lx",
+						vma->vm_start, vma->vm_end);
+				if (flex_array_put(fa, i++, &info, GFP_KERNEL))
+					BUG();
+			}
+		}
+		up_read(&mm->mmap_sem);
+
+		for (i = 0; i < nr_files; i++) {
+			p = flex_array_get(fa, i);
+			ret = proc_fill_cache(filp, dirent, filldir,
+					      p->name, p->len,
+					      proc_map_files_instantiate,
+					      task, p->file);
+			if (ret)
+				break;
+			filp->f_pos++;
+			fput(p->file);
+		}
+		for (; i < nr_files; i++) {
+			/*
+			 * In case of error don't forget
+			 * to put rest of file refs.
+			 */
+			p = flex_array_get(fa, i);
+			fput(p->file);
+		}
+		if (fa)
+			flex_array_free(fa);
+		mmput(mm);
+	}
+	}
+
+out_unlock:
+	unlock_trace(task);
+out_put_task:
+	put_task_struct(task);
+out:
+	return ret;
+}
+
+static const struct file_operations proc_map_files_operations = {
+	.read		= generic_read_dir,
+	.readdir	= proc_map_files_readdir,
+	.llseek		= default_llseek,
+};
+
+#endif /* CONFIG_CHECKPOINT_RESTORE */
+
 /*
  * /proc/pid/fd needs a special permission handler so that a process can still
  * access /proc/self/fd after it has executed a setuid().
@@ -2658,6 +3066,9 @@ static const struct inode_operations proc_task_inode_operations;
 static const struct pid_entry tgid_base_stuff[] = {
 	DIR("task",       S_IRUGO|S_IXUGO, proc_task_inode_operations, proc_task_operations),
 	DIR("fd",         S_IRUSR|S_IXUSR, proc_fd_inode_operations, proc_fd_operations),
+#ifdef CONFIG_CHECKPOINT_RESTORE
+	DIR("map_files",  S_IRUSR|S_IXUSR, proc_map_files_inode_operations, proc_map_files_operations),
+#endif
 	DIR("fdinfo",     S_IRUSR|S_IXUSR, proc_fdinfo_inode_operations, proc_fdinfo_operations),
 	DIR("ns",	  S_IRUSR|S_IXUGO, proc_ns_dir_inode_operations, proc_ns_dir_operations),
 #ifdef CONFIG_NET
@@ -2761,6 +3172,7 @@ static const struct inode_operations proc_tgid_base_inode_operations = {
 	.lookup		= proc_tgid_base_lookup,
 	.getattr	= pid_getattr,
 	.setattr	= proc_setattr,
+	.permission	= proc_pid_permission,
 };
 
 static void proc_flush_task_mnt(struct vfsmount *mnt, pid_t pid, pid_t tgid)
@@ -2964,6 +3376,12 @@ static int proc_pid_fill_cache(struct file *filp, void *dirent, filldir_t filldi
 				proc_pid_instantiate, iter.task, NULL);
 }
 
+static int fake_filldir(void *buf, const char *name, int namelen,
+			loff_t offset, u64 ino, unsigned d_type)
+{
+	return 0;
+}
+
 /* for the /proc/ directory itself, after non-process stuff has been done */
 int proc_pid_readdir(struct file * filp, void * dirent, filldir_t filldir)
 {
@@ -2971,6 +3389,7 @@ int proc_pid_readdir(struct file * filp, void * dirent, filldir_t filldir)
 	struct task_struct *reaper;
 	struct tgid_iter iter;
 	struct pid_namespace *ns;
+	filldir_t __filldir;
 
 	if (filp->f_pos >= PID_MAX_LIMIT + TGID_OFFSET)
 		goto out_no_task;
@@ -2992,8 +3411,13 @@ int proc_pid_readdir(struct file * filp, void * dirent, filldir_t filldir)
 	for (iter = next_tgid(ns, iter);
 	     iter.task;
 	     iter.tgid += 1, iter = next_tgid(ns, iter)) {
+		if (has_pid_permissions(ns, iter.task, 2))
+			__filldir = filldir;
+		else
+			__filldir = fake_filldir;
+
 		filp->f_pos = iter.tgid + TGID_OFFSET;
-		if (proc_pid_fill_cache(filp, dirent, filldir, iter) < 0) {
+		if (proc_pid_fill_cache(filp, dirent, __filldir, iter) < 0) {
 			put_task_struct(iter.task);
 			goto out;
 		}
@@ -3328,6 +3752,7 @@ static const struct inode_operations proc_task_inode_operations = {
 	.lookup		= proc_task_lookup,
 	.getattr	= proc_task_getattr,
 	.setattr	= proc_setattr,
+	.permission	= proc_pid_permission,
 };
 
 static const struct file_operations proc_task_operations = {
diff --git a/fs/proc/inode.c b/fs/proc/inode.c
index 51a176622b8f..84fd3235a590 100644
--- a/fs/proc/inode.c
+++ b/fs/proc/inode.c
@@ -7,6 +7,7 @@
 #include <linux/time.h>
 #include <linux/proc_fs.h>
 #include <linux/kernel.h>
+#include <linux/pid_namespace.h>
 #include <linux/mm.h>
 #include <linux/string.h>
 #include <linux/stat.h>
@@ -17,7 +18,9 @@
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/sysctl.h>
+#include <linux/seq_file.h>
 #include <linux/slab.h>
+#include <linux/mount.h>
 
 #include <asm/system.h>
 #include <asm/uaccess.h>
@@ -101,12 +104,27 @@ void __init proc_init_inodecache(void)
 					     init_once);
 }
 
+static int proc_show_options(struct seq_file *seq, struct dentry *root)
+{
+	struct super_block *sb = root->d_sb;
+	struct pid_namespace *pid = sb->s_fs_info;
+
+	if (pid->pid_gid)
+		seq_printf(seq, ",gid=%lu", (unsigned long)pid->pid_gid);
+	if (pid->hide_pid != 0)
+		seq_printf(seq, ",hidepid=%u", pid->hide_pid);
+
+	return 0;
+}
+
 static const struct super_operations proc_sops = {
 	.alloc_inode	= proc_alloc_inode,
 	.destroy_inode	= proc_destroy_inode,
 	.drop_inode	= generic_delete_inode,
 	.evict_inode	= proc_evict_inode,
 	.statfs		= simple_statfs,
+	.remount_fs	= proc_remount,
+	.show_options	= proc_show_options,
 };
 
 static void __pde_users_dec(struct proc_dir_entry *pde)
diff --git a/fs/proc/internal.h b/fs/proc/internal.h
index 7838e5cfec14..292577531ad1 100644
--- a/fs/proc/internal.h
+++ b/fs/proc/internal.h
@@ -117,6 +117,7 @@ void pde_put(struct proc_dir_entry *pde);
 
 int proc_fill_super(struct super_block *);
 struct inode *proc_get_inode(struct super_block *, struct proc_dir_entry *);
+int proc_remount(struct super_block *sb, int *flags, char *data);
 
 /*
  * These are generic /proc routines that use the internal
diff --git a/fs/proc/root.c b/fs/proc/root.c
index 03102d978180..46a15d8a29ca 100644
--- a/fs/proc/root.c
+++ b/fs/proc/root.c
@@ -18,6 +18,7 @@
 #include <linux/bitops.h>
 #include <linux/mount.h>
 #include <linux/pid_namespace.h>
+#include <linux/parser.h>
 
 #include "internal.h"
 
@@ -36,6 +37,63 @@ static int proc_set_super(struct super_block *sb, void *data)
 	return err;
 }
 
+enum {
+	Opt_gid, Opt_hidepid, Opt_err,
+};
+
+static const match_table_t tokens = {
+	{Opt_hidepid, "hidepid=%u"},
+	{Opt_gid, "gid=%u"},
+	{Opt_err, NULL},
+};
+
+static int proc_parse_options(char *options, struct pid_namespace *pid)
+{
+	char *p;
+	substring_t args[MAX_OPT_ARGS];
+	int option;
+
+	if (!options)
+		return 1;
+
+	while ((p = strsep(&options, ",")) != NULL) {
+		int token;
+		if (!*p)
+			continue;
+
+		args[0].to = args[0].from = 0;
+		token = match_token(p, tokens, args);
+		switch (token) {
+		case Opt_gid:
+			if (match_int(&args[0], &option))
+				return 0;
+			pid->pid_gid = option;
+			break;
+		case Opt_hidepid:
+			if (match_int(&args[0], &option))
+				return 0;
+			if (option < 0 || option > 2) {
+				pr_err("proc: hidepid value must be between 0 and 2.\n");
+				return 0;
+			}
+			pid->hide_pid = option;
+			break;
+		default:
+			pr_err("proc: unrecognized mount option \"%s\" "
+			       "or missing value\n", p);
+			return 0;
+		}
+	}
+
+	return 1;
+}
+
+int proc_remount(struct super_block *sb, int *flags, char *data)
+{
+	struct pid_namespace *pid = sb->s_fs_info;
+	return !proc_parse_options(data, pid);
+}
+
 static struct dentry *proc_mount(struct file_system_type *fs_type,
 	int flags, const char *dev_name, void *data)
 {
@@ -43,11 +101,15 @@ static struct dentry *proc_mount(struct file_system_type *fs_type,
 	struct super_block *sb;
 	struct pid_namespace *ns;
 	struct proc_inode *ei;
+	char *options;
 
-	if (flags & MS_KERNMOUNT)
+	if (flags & MS_KERNMOUNT) {
 		ns = (struct pid_namespace *)data;
-	else
+		options = NULL;
+	} else {
 		ns = current->nsproxy->pid_ns;
+		options = data;
+	}
 
 	sb = sget(fs_type, proc_test_super, proc_set_super, ns);
 	if (IS_ERR(sb))
@@ -55,6 +117,10 @@ static struct dentry *proc_mount(struct file_system_type *fs_type,
 
 	if (!sb->s_root) {
 		sb->s_flags = flags;
+		if (!proc_parse_options(options, ns)) {
+			deactivate_locked_super(sb);
+			return ERR_PTR(-EINVAL);
+		}
 		err = proc_fill_super(sb);
 		if (err) {
 			deactivate_locked_super(sb);
diff --git a/fs/reiserfs/bitmap.c b/fs/reiserfs/bitmap.c
index a945cd265228..70de42f09f1d 100644
--- a/fs/reiserfs/bitmap.c
+++ b/fs/reiserfs/bitmap.c
@@ -1364,10 +1364,7 @@ int reiserfs_init_bitmap_cache(struct super_block *sb)
 	struct reiserfs_bitmap_info *bitmap;
 	unsigned int bmap_nr = reiserfs_bmap_count(sb);
 
-	/* Avoid lock recursion in fault case */
-	reiserfs_write_unlock(sb);
 	bitmap = vmalloc(sizeof(*bitmap) * bmap_nr);
-	reiserfs_write_lock(sb);
 	if (bitmap == NULL)
 		return -ENOMEM;
 
diff --git a/fs/reiserfs/journal.c b/fs/reiserfs/journal.c
index eb711060a6f2..c3cf54fd4de3 100644
--- a/fs/reiserfs/journal.c
+++ b/fs/reiserfs/journal.c
@@ -2678,16 +2678,10 @@ int journal_init(struct super_block *sb, const char *j_dev_name,
 	char b[BDEVNAME_SIZE];
 	int ret;
 
-	/*
-	 * Unlock here to avoid various RECLAIM-FS-ON <-> IN-RECLAIM-FS
-	 * dependency inversion warnings.
-	 */
-	reiserfs_write_unlock(sb);
 	journal = SB_JOURNAL(sb) = vzalloc(sizeof(struct reiserfs_journal));
 	if (!journal) {
 		reiserfs_warning(sb, "journal-1256",
 				 "unable to get memory for journal structure");
-		reiserfs_write_lock(sb);
 		return 1;
 	}
 	INIT_LIST_HEAD(&journal->j_bitmap_nodes);
@@ -2695,10 +2689,8 @@ int journal_init(struct super_block *sb, const char *j_dev_name,
 	INIT_LIST_HEAD(&journal->j_working_list);
 	INIT_LIST_HEAD(&journal->j_journal_list);
 	journal->j_persistent_trans = 0;
-	ret = reiserfs_allocate_list_bitmaps(sb, journal->j_list_bitmap,
-					   reiserfs_bmap_count(sb));
-	reiserfs_write_lock(sb);
-	if (ret)
+	if (reiserfs_allocate_list_bitmaps(sb, journal->j_list_bitmap,
+					   reiserfs_bmap_count(sb)))
 		goto free_and_return;
 
 	allocate_bitmap_nodes(sb);
@@ -2727,27 +2719,11 @@ int journal_init(struct super_block *sb, const char *j_dev_name,
 		goto free_and_return;
 	}
 
-	/*
-	 * We need to unlock here to avoid creating the following
-	 * dependency:
-	 * reiserfs_lock -> sysfs_mutex
-	 * Because the reiserfs mmap path creates the following dependency:
-	 * mm->mmap -> reiserfs_lock, hence we have
-	 * mm->mmap -> reiserfs_lock ->sysfs_mutex
-	 * This would ends up in a circular dependency with sysfs readdir path
-	 * which does sysfs_mutex -> mm->mmap_sem
-	 * This is fine because the reiserfs lock is useless in mount path,
-	 * at least until we call journal_begin. We keep it for paranoid
-	 * reasons.
-	 */
-	reiserfs_write_unlock(sb);
 	if (journal_init_dev(sb, journal, j_dev_name) != 0) {
-		reiserfs_write_lock(sb);
 		reiserfs_warning(sb, "sh-462",
 				 "unable to initialize jornal device");
 		goto free_and_return;
 	}
-	reiserfs_write_lock(sb);
 
 	rs = SB_DISK_SUPER_BLOCK(sb);
 
@@ -2829,9 +2805,7 @@ int journal_init(struct super_block *sb, const char *j_dev_name,
 	journal->j_mount_id = 10;
 	journal->j_state = 0;
 	atomic_set(&(journal->j_jlock), 0);
-	reiserfs_write_unlock(sb);
 	journal->j_cnode_free_list = allocate_cnodes(num_cnodes);
-	reiserfs_write_lock(sb);
 	journal->j_cnode_free_orig = journal->j_cnode_free_list;
 	journal->j_cnode_free = journal->j_cnode_free_list ? num_cnodes : 0;
 	journal->j_cnode_used = 0;
@@ -2848,24 +2822,37 @@ int journal_init(struct super_block *sb, const char *j_dev_name,
 
 	init_journal_hash(sb);
 	jl = journal->j_current_jl;
+
+	/*
+	 * get_list_bitmap() may call flush_commit_list() which
+	 * requires the lock. Calling flush_commit_list() shouldn't happen
+	 * this early but I like to be paranoid.
+	 */
+	reiserfs_write_lock(sb);
 	jl->j_list_bitmap = get_list_bitmap(sb, jl);
+	reiserfs_write_unlock(sb);
 	if (!jl->j_list_bitmap) {
 		reiserfs_warning(sb, "journal-2005",
 				 "get_list_bitmap failed for journal list 0");
 		goto free_and_return;
 	}
-	if (journal_read(sb) < 0) {
+
+	/*
+	 * Journal_read needs to be inspected in order to push down
+	 * the lock further inside (or even remove it).
+	 */
+	reiserfs_write_lock(sb);
+	ret = journal_read(sb);
+	reiserfs_write_unlock(sb);
+	if (ret < 0) {
 		reiserfs_warning(sb, "reiserfs-2006",
 				 "Replay Failure, unable to mount");
 		goto free_and_return;
 	}
 
 	reiserfs_mounted_fs_count++;
-	if (reiserfs_mounted_fs_count <= 1) {
-		reiserfs_write_unlock(sb);
+	if (reiserfs_mounted_fs_count <= 1)
 		commit_wq = alloc_workqueue("reiserfs", WQ_MEM_RECLAIM, 0);
-		reiserfs_write_lock(sb);
-	}
 
 	INIT_DELAYED_WORK(&journal->j_work, flush_async_commits);
 	journal->j_work_sb = sb;
@@ -2896,14 +2883,13 @@ int journal_transaction_should_end(struct reiserfs_transaction_handle *th,
 	    journal->j_cnode_free < (journal->j_trans_max * 3)) {
 		return 1;
 	}
-	/* protected by the BKL here */
+
 	journal->j_len_alloc += new_alloc;
 	th->t_blocks_allocated += new_alloc ;
 	return 0;
 }
 
-/* this must be called inside a transaction, and requires the
-** kernel_lock to be held
+/* this must be called inside a transaction
 */
 void reiserfs_block_writes(struct reiserfs_transaction_handle *th)
 {
@@ -2914,8 +2900,7 @@ void reiserfs_block_writes(struct reiserfs_transaction_handle *th)
 	return;
 }
 
-/* this must be called without a transaction started, and does not
-** require BKL
+/* this must be called without a transaction started
 */
 void reiserfs_allow_writes(struct super_block *s)
 {
@@ -2924,8 +2909,7 @@ void reiserfs_allow_writes(struct super_block *s)
 	wake_up(&journal->j_join_wait);
 }
 
-/* this must be called without a transaction started, and does not
-** require BKL
+/* this must be called without a transaction started
 */
 void reiserfs_wait_on_write_block(struct super_block *s)
 {
diff --git a/fs/reiserfs/super.c b/fs/reiserfs/super.c
index 19c454e61b79..e12d8b97cd4d 100644
--- a/fs/reiserfs/super.c
+++ b/fs/reiserfs/super.c
@@ -455,16 +455,20 @@ int remove_save_link(struct inode *inode, int truncate)
 static void reiserfs_kill_sb(struct super_block *s)
 {
 	if (REISERFS_SB(s)) {
-		if (REISERFS_SB(s)->xattr_root) {
-			d_invalidate(REISERFS_SB(s)->xattr_root);
-			dput(REISERFS_SB(s)->xattr_root);
-			REISERFS_SB(s)->xattr_root = NULL;
-		}
-		if (REISERFS_SB(s)->priv_root) {
-			d_invalidate(REISERFS_SB(s)->priv_root);
-			dput(REISERFS_SB(s)->priv_root);
-			REISERFS_SB(s)->priv_root = NULL;
-		}
+		/*
+		 * Force any pending inode evictions to occur now. Any
+		 * inodes to be removed that have extended attributes
+		 * associated with them need to clean them up before
+		 * we can release the extended attribute root dentries.
+		 * shrink_dcache_for_umount will BUG if we don't release
+		 * those before it's called so ->put_super is too late.
+		 */
+		shrink_dcache_sb(s);
+
+		dput(REISERFS_SB(s)->xattr_root);
+		REISERFS_SB(s)->xattr_root = NULL;
+		dput(REISERFS_SB(s)->priv_root);
+		REISERFS_SB(s)->priv_root = NULL;
 	}
 
 	kill_block_super(s);
@@ -1249,7 +1253,8 @@ static void handle_quota_files(struct super_block *s, char **qf_names,
 			kfree(REISERFS_SB(s)->s_qf_names[i]);
 		REISERFS_SB(s)->s_qf_names[i] = qf_names[i];
 	}
-	REISERFS_SB(s)->s_jquota_fmt = *qfmt;
+	if (*qfmt)
+		REISERFS_SB(s)->s_jquota_fmt = *qfmt;
 }
 #endif
 
@@ -1514,9 +1519,7 @@ static int read_super_block(struct super_block *s, int offset)
 static int reread_meta_blocks(struct super_block *s)
 {
 	ll_rw_block(READ, 1, &(SB_BUFFER_WITH_SB(s)));
-	reiserfs_write_unlock(s);
 	wait_on_buffer(SB_BUFFER_WITH_SB(s));
-	reiserfs_write_lock(s);
 	if (!buffer_uptodate(SB_BUFFER_WITH_SB(s))) {
 		reiserfs_warning(s, "reiserfs-2504", "error reading the super");
 		return 1;
@@ -1741,22 +1744,11 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
 	mutex_init(&REISERFS_SB(s)->lock);
 	REISERFS_SB(s)->lock_depth = -1;
 
-	/*
-	 * This function is called with the bkl, which also was the old
-	 * locking used here.
-	 * do_journal_begin() will soon check if we hold the lock (ie: was the
-	 * bkl). This is likely because do_journal_begin() has several another
-	 * callers because at this time, it doesn't seem to be necessary to
-	 * protect against anything.
-	 * Anyway, let's be conservative and lock for now.
-	 */
-	reiserfs_write_lock(s);
-
 	jdev_name = NULL;
 	if (reiserfs_parse_options
 	    (s, (char *)data, &(sbi->s_mount_opt), &blocks, &jdev_name,
 	     &commit_max_age, qf_names, &qfmt) == 0) {
-		goto error;
+		goto error_unlocked;
 	}
 	if (jdev_name && jdev_name[0]) {
 		REISERFS_SB(s)->s_jdev = kstrdup(jdev_name, GFP_KERNEL);
@@ -1772,7 +1764,7 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
 
 	if (blocks) {
 		SWARN(silent, s, "jmacd-7", "resize option for remount only");
-		goto error;
+		goto error_unlocked;
 	}
 
 	/* try old format (undistributed bitmap, super block in 8-th 1k block of a device) */
@@ -1782,7 +1774,7 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
 	else if (read_super_block(s, REISERFS_DISK_OFFSET_IN_BYTES)) {
 		SWARN(silent, s, "sh-2021", "can not find reiserfs on %s",
 		      reiserfs_bdevname(s));
-		goto error;
+		goto error_unlocked;
 	}
 
 	rs = SB_DISK_SUPER_BLOCK(s);
@@ -1798,7 +1790,7 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
 		      "or increase size of your LVM partition");
 		SWARN(silent, s, "", "Or may be you forgot to "
 		      "reboot after fdisk when it told you to");
-		goto error;
+		goto error_unlocked;
 	}
 
 	sbi->s_mount_state = SB_REISERFS_STATE(s);
@@ -1806,8 +1798,9 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
 
 	if ((errval = reiserfs_init_bitmap_cache(s))) {
 		SWARN(silent, s, "jmacd-8", "unable to read bitmap");
-		goto error;
+		goto error_unlocked;
 	}
+
 	errval = -EINVAL;
 #ifdef CONFIG_REISERFS_CHECK
 	SWARN(silent, s, "", "CONFIG_REISERFS_CHECK is set ON");
@@ -1830,24 +1823,26 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
 	if (reiserfs_barrier_flush(s)) {
 		printk("reiserfs: using flush barriers\n");
 	}
+
 	// set_device_ro(s->s_dev, 1) ;
 	if (journal_init(s, jdev_name, old_format, commit_max_age)) {
 		SWARN(silent, s, "sh-2022",
 		      "unable to initialize journal space");
-		goto error;
+		goto error_unlocked;
 	} else {
 		jinit_done = 1;	/* once this is set, journal_release must be called
 				 ** if we error out of the mount
 				 */
 	}
+
 	if (reread_meta_blocks(s)) {
 		SWARN(silent, s, "jmacd-9",
 		      "unable to reread meta blocks after journal init");
-		goto error;
+		goto error_unlocked;
 	}
 
 	if (replay_only(s))
-		goto error;
+		goto error_unlocked;
 
 	if (bdev_read_only(s->s_bdev) && !(s->s_flags & MS_RDONLY)) {
 		SWARN(silent, s, "clm-7000",
@@ -1861,9 +1856,19 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
 			 reiserfs_init_locked_inode, (void *)(&args));
 	if (!root_inode) {
 		SWARN(silent, s, "jmacd-10", "get root inode failed");
-		goto error;
+		goto error_unlocked;
 	}
 
+	/*
+	 * This path assumed to be called with the BKL in the old times.
+	 * Now we have inherited the big reiserfs lock from it and many
+	 * reiserfs helpers called in the mount path and elsewhere require
+	 * this lock to be held even if it's not always necessary. Let's be
+	 * conservative and hold it early. The window can be reduced after
+	 * careful review of the code.
+	 */
+	reiserfs_write_lock(s);
+
 	if (root_inode->i_state & I_NEW) {
 		reiserfs_read_locked_inode(root_inode, &args);
 		unlock_new_inode(root_inode);
@@ -1990,12 +1995,16 @@ static int reiserfs_fill_super(struct super_block *s, void *data, int silent)
 	return (0);
 
 error:
-	if (jinit_done) {	/* kill the commit thread, free journal ram */
+	reiserfs_write_unlock(s);
+
+error_unlocked:
+	/* kill the commit thread, free journal ram */
+	if (jinit_done) {
+		reiserfs_write_lock(s);
 		journal_release_error(NULL, s);
+		reiserfs_write_unlock(s);
 	}
 
-	reiserfs_write_unlock(s);
-
 	reiserfs_free_bitmap_cache(s);
 	if (SB_BUFFER_WITH_SB(s))
 		brelse(SB_BUFFER_WITH_SB(s));
diff --git a/fs/romfs/mmap-nommu.c b/fs/romfs/mmap-nommu.c
index eed99428f104..e1a7779dd3cb 100644
--- a/fs/romfs/mmap-nommu.c
+++ b/fs/romfs/mmap-nommu.c
@@ -28,9 +28,10 @@ static unsigned long romfs_get_unmapped_area(struct file *file,
 	struct inode *inode = file->f_mapping->host;
 	struct mtd_info *mtd = inode->i_sb->s_mtd;
 	unsigned long isize, offset, maxpages, lpages;
+	int ret;
 
 	if (!mtd)
-		goto cant_map_directly;
+		return (unsigned long) -ENOSYS;
 
 	/* the mapping mustn't extend beyond the EOF */
 	lpages = (len + PAGE_SIZE - 1) >> PAGE_SHIFT;
@@ -41,23 +42,20 @@ static unsigned long romfs_get_unmapped_area(struct file *file,
 	if ((pgoff >= maxpages) || (maxpages - pgoff < lpages))
 		return (unsigned long) -EINVAL;
 
-	/* we need to call down to the MTD layer to do the actual mapping */
-	if (mtd->get_unmapped_area) {
-		if (addr != 0)
-			return (unsigned long) -EINVAL;
-
-		if (len > mtd->size || pgoff >= (mtd->size >> PAGE_SHIFT))
-			return (unsigned long) -EINVAL;
+	if (addr != 0)
+		return (unsigned long) -EINVAL;
 
-		offset += ROMFS_I(inode)->i_dataoffset;
-		if (offset > mtd->size - len)
-			return (unsigned long) -EINVAL;
+	if (len > mtd->size || pgoff >= (mtd->size >> PAGE_SHIFT))
+		return (unsigned long) -EINVAL;
 
-		return mtd->get_unmapped_area(mtd, len, offset, flags);
-	}
+	offset += ROMFS_I(inode)->i_dataoffset;
+	if (offset > mtd->size - len)
+		return (unsigned long) -EINVAL;
 
-cant_map_directly:
-	return (unsigned long) -ENOSYS;
+	ret = mtd_get_unmapped_area(mtd, len, offset, flags);
+	if (ret == -EOPNOTSUPP)
+		ret = -ENOSYS;
+	return (unsigned long) ret;
 }
 
 /*
diff --git a/fs/ubifs/lpt.c b/fs/ubifs/lpt.c
index 6189c74d97f0..66d59d0a1402 100644
--- a/fs/ubifs/lpt.c
+++ b/fs/ubifs/lpt.c
@@ -1986,12 +1986,11 @@ again:
 
 				if (path[h].in_tree)
 					continue;
-				nnode = kmalloc(sz, GFP_NOFS);
+				nnode = kmemdup(&path[h].nnode, sz, GFP_NOFS);
 				if (!nnode) {
 					err = -ENOMEM;
 					goto out;
 				}
-				memcpy(nnode, &path[h].nnode, sz);
 				parent = nnode->parent;
 				parent->nbranch[nnode->iip].nnode = nnode;
 				path[h].ptr.nnode = nnode;
@@ -2004,12 +2003,11 @@ again:
 				const size_t sz = sizeof(struct ubifs_pnode);
 				struct ubifs_nnode *parent;
 
-				pnode = kmalloc(sz, GFP_NOFS);
+				pnode = kmemdup(&path[h].pnode, sz, GFP_NOFS);
 				if (!pnode) {
 					err = -ENOMEM;
 					goto out;
 				}
-				memcpy(pnode, &path[h].pnode, sz);
 				parent = pnode->parent;
 				parent->nbranch[pnode->iip].pnode = pnode;
 				path[h].ptr.pnode = pnode;
diff --git a/fs/ubifs/tnc.c b/fs/ubifs/tnc.c
index 066738647685..e14ee53159db 100644
--- a/fs/ubifs/tnc.c
+++ b/fs/ubifs/tnc.c
@@ -344,12 +344,11 @@ static int lnc_add(struct ubifs_info *c, struct ubifs_zbranch *zbr,
 		return err;
 	}
 
-	lnc_node = kmalloc(zbr->len, GFP_NOFS);
+	lnc_node = kmemdup(node, zbr->len, GFP_NOFS);
 	if (!lnc_node)
 		/* We don't have to have the cache, so no error */
 		return 0;
 
-	memcpy(lnc_node, node, zbr->len);
 	zbr->leaf = lnc_node;
 	return 0;
 }
diff --git a/fs/ubifs/xattr.c b/fs/ubifs/xattr.c
index bf18f7a04544..85b272268754 100644
--- a/fs/ubifs/xattr.c
+++ b/fs/ubifs/xattr.c
@@ -138,12 +138,11 @@ static int create_xattr(struct ubifs_info *c, struct inode *host,
 	ui = ubifs_inode(inode);
 	ui->xattr = 1;
 	ui->flags |= UBIFS_XATTR_FL;
-	ui->data = kmalloc(size, GFP_NOFS);
+	ui->data = kmemdup(value, size, GFP_NOFS);
 	if (!ui->data) {
 		err = -ENOMEM;
 		goto out_free;
 	}
-	memcpy(ui->data, value, size);
 	inode->i_size = ui->ui_size = size;
 	ui->data_len = size;
 
@@ -204,12 +203,11 @@ static int change_xattr(struct ubifs_info *c, struct inode *host,
 		return err;
 
 	kfree(ui->data);
-	ui->data = kmalloc(size, GFP_NOFS);
+	ui->data = kmemdup(value, size, GFP_NOFS);
 	if (!ui->data) {
 		err = -ENOMEM;
 		goto out_free;
 	}
-	memcpy(ui->data, value, size);
 	inode->i_size = ui->ui_size = size;
 	ui->data_len = size;
 
diff --git a/fs/udf/file.c b/fs/udf/file.c
index d8ffa7cc661d..dca0c3881e82 100644
--- a/fs/udf/file.c
+++ b/fs/udf/file.c
@@ -125,7 +125,6 @@ static ssize_t udf_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
 			err = udf_expand_file_adinicb(inode);
 			if (err) {
 				udf_debug("udf_expand_adinicb: err=%d\n", err);
-				up_write(&iinfo->i_data_sem);
 				return err;
 			}
 		} else {
@@ -133,9 +132,10 @@ static ssize_t udf_file_aio_write(struct kiocb *iocb, const struct iovec *iov,
 				iinfo->i_lenAlloc = pos + count;
 			else
 				iinfo->i_lenAlloc = inode->i_size;
+			up_write(&iinfo->i_data_sem);
 		}
-	}
-	up_write(&iinfo->i_data_sem);
+	} else
+		up_write(&iinfo->i_data_sem);
 
 	retval = generic_file_aio_write(iocb, iov, nr_segs, ppos);
 	if (retval > 0)
diff --git a/fs/udf/inode.c b/fs/udf/inode.c
index 4598904be1bb..7699df7b3198 100644
--- a/fs/udf/inode.c
+++ b/fs/udf/inode.c
@@ -53,8 +53,7 @@ static int udf_update_inode(struct inode *, int);
 static void udf_fill_inode(struct inode *, struct buffer_head *);
 static int udf_sync_inode(struct inode *inode);
 static int udf_alloc_i_data(struct inode *inode, size_t size);
-static struct buffer_head *inode_getblk(struct inode *, sector_t, int *,
-					sector_t *, int *);
+static sector_t inode_getblk(struct inode *, sector_t, int *, int *);
 static int8_t udf_insert_aext(struct inode *, struct extent_position,
 			      struct kernel_lb_addr, uint32_t);
 static void udf_split_extents(struct inode *, int *, int, int,
@@ -151,6 +150,12 @@ const struct address_space_operations udf_aops = {
 	.bmap		= udf_bmap,
 };
 
+/*
+ * Expand file stored in ICB to a normal one-block-file
+ *
+ * This function requires i_data_sem for writing and releases it.
+ * This function requires i_mutex held
+ */
 int udf_expand_file_adinicb(struct inode *inode)
 {
 	struct page *page;
@@ -169,9 +174,15 @@ int udf_expand_file_adinicb(struct inode *inode)
 			iinfo->i_alloc_type = ICBTAG_FLAG_AD_LONG;
 		/* from now on we have normal address_space methods */
 		inode->i_data.a_ops = &udf_aops;
+		up_write(&iinfo->i_data_sem);
 		mark_inode_dirty(inode);
 		return 0;
 	}
+	/*
+	 * Release i_data_sem so that we can lock a page - page lock ranks
+	 * above i_data_sem. i_mutex still protects us against file changes.
+	 */
+	up_write(&iinfo->i_data_sem);
 
 	page = find_or_create_page(inode->i_mapping, 0, GFP_NOFS);
 	if (!page)
@@ -187,6 +198,7 @@ int udf_expand_file_adinicb(struct inode *inode)
 		SetPageUptodate(page);
 		kunmap(page);
 	}
+	down_write(&iinfo->i_data_sem);
 	memset(iinfo->i_ext.i_data + iinfo->i_lenEAttr, 0x00,
 	       iinfo->i_lenAlloc);
 	iinfo->i_lenAlloc = 0;
@@ -196,17 +208,20 @@ int udf_expand_file_adinicb(struct inode *inode)
 		iinfo->i_alloc_type = ICBTAG_FLAG_AD_LONG;
 	/* from now on we have normal address_space methods */
 	inode->i_data.a_ops = &udf_aops;
+	up_write(&iinfo->i_data_sem);
 	err = inode->i_data.a_ops->writepage(page, &udf_wbc);
 	if (err) {
 		/* Restore everything back so that we don't lose data... */
 		lock_page(page);
 		kaddr = kmap(page);
+		down_write(&iinfo->i_data_sem);
 		memcpy(iinfo->i_ext.i_data + iinfo->i_lenEAttr, kaddr,
 		       inode->i_size);
 		kunmap(page);
 		unlock_page(page);
 		iinfo->i_alloc_type = ICBTAG_FLAG_AD_IN_ICB;
 		inode->i_data.a_ops = &udf_adinicb_aops;
+		up_write(&iinfo->i_data_sem);
 	}
 	page_cache_release(page);
 	mark_inode_dirty(inode);
@@ -310,7 +325,6 @@ static int udf_get_block(struct inode *inode, sector_t block,
 			 struct buffer_head *bh_result, int create)
 {
 	int err, new;
-	struct buffer_head *bh;
 	sector_t phys = 0;
 	struct udf_inode_info *iinfo;
 
@@ -323,7 +337,6 @@ static int udf_get_block(struct inode *inode, sector_t block,
 
 	err = -EIO;
 	new = 0;
-	bh = NULL;
 	iinfo = UDF_I(inode);
 
 	down_write(&iinfo->i_data_sem);
@@ -332,13 +345,10 @@ static int udf_get_block(struct inode *inode, sector_t block,
 		iinfo->i_next_alloc_goal++;
 	}
 
-	err = 0;
 
-	bh = inode_getblk(inode, block, &err, &phys, &new);
-	BUG_ON(bh);
-	if (err)
+	phys = inode_getblk(inode, block, &err, &new);
+	if (!phys)
 		goto abort;
-	BUG_ON(!phys);
 
 	if (new)
 		set_buffer_new(bh_result);
@@ -547,11 +557,10 @@ out:
 	return err;
 }
 
-static struct buffer_head *inode_getblk(struct inode *inode, sector_t block,
-					int *err, sector_t *phys, int *new)
+static sector_t inode_getblk(struct inode *inode, sector_t block,
+			     int *err, int *new)
 {
 	static sector_t last_block;
-	struct buffer_head *result = NULL;
 	struct kernel_long_ad laarr[EXTENT_MERGE_SIZE];
 	struct extent_position prev_epos, cur_epos, next_epos;
 	int count = 0, startnum = 0, endnum = 0;
@@ -566,6 +575,8 @@ static struct buffer_head *inode_getblk(struct inode *inode, sector_t block,
 	int goal = 0, pgoal = iinfo->i_location.logicalBlockNum;
 	int lastblock = 0;
 
+	*err = 0;
+	*new = 0;
 	prev_epos.offset = udf_file_entry_alloc_offset(inode);
 	prev_epos.block = iinfo->i_location;
 	prev_epos.bh = NULL;
@@ -635,8 +646,7 @@ static struct buffer_head *inode_getblk(struct inode *inode, sector_t block,
 		brelse(cur_epos.bh);
 		brelse(next_epos.bh);
 		newblock = udf_get_lb_pblock(inode->i_sb, &eloc, offset);
-		*phys = newblock;
-		return NULL;
+		return newblock;
 	}
 
 	last_block = block;
@@ -664,7 +674,7 @@ static struct buffer_head *inode_getblk(struct inode *inode, sector_t block,
 			brelse(cur_epos.bh);
 			brelse(next_epos.bh);
 			*err = ret;
-			return NULL;
+			return 0;
 		}
 		c = 0;
 		offset = 0;
@@ -729,7 +739,7 @@ static struct buffer_head *inode_getblk(struct inode *inode, sector_t block,
 		if (!newblocknum) {
 			brelse(prev_epos.bh);
 			*err = -ENOSPC;
-			return NULL;
+			return 0;
 		}
 		iinfo->i_lenExtents += inode->i_sb->s_blocksize;
 	}
@@ -761,10 +771,10 @@ static struct buffer_head *inode_getblk(struct inode *inode, sector_t block,
 
 	newblock = udf_get_pblock(inode->i_sb, newblocknum,
 				iinfo->i_location.partitionReferenceNum, 0);
-	if (!newblock)
-		return NULL;
-	*phys = newblock;
-	*err = 0;
+	if (!newblock) {
+		*err = -EIO;
+		return 0;
+	}
 	*new = 1;
 	iinfo->i_next_alloc_block = block;
 	iinfo->i_next_alloc_goal = newblocknum;
@@ -775,7 +785,7 @@ static struct buffer_head *inode_getblk(struct inode *inode, sector_t block,
 	else
 		mark_inode_dirty(inode);
 
-	return result;
+	return newblock;
 }
 
 static void udf_split_extents(struct inode *inode, int *c, int offset,
@@ -1111,10 +1121,9 @@ int udf_setsize(struct inode *inode, loff_t newsize)
 			if (bsize <
 			    (udf_file_entry_alloc_offset(inode) + newsize)) {
 				err = udf_expand_file_adinicb(inode);
-				if (err) {
-					up_write(&iinfo->i_data_sem);
+				if (err)
 					return err;
-				}
+				down_write(&iinfo->i_data_sem);
 			} else
 				iinfo->i_lenAlloc = newsize;
 		}
diff --git a/fs/udf/super.c b/fs/udf/super.c
index 0c33225647a0..c09a84daaf50 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -1798,6 +1798,12 @@ static void udf_close_lvid(struct super_block *sb)
 				le16_to_cpu(lvid->descTag.descCRCLength)));
 
 	lvid->descTag.tagChecksum = udf_tag_checksum(&lvid->descTag);
+	/*
+	 * We set buffer uptodate unconditionally here to avoid spurious
+	 * warnings from mark_buffer_dirty() when previous EIO has marked
+	 * the buffer as !uptodate
+	 */
+	set_buffer_uptodate(bh);
 	mark_buffer_dirty(bh);
 	sbi->s_lvid_dirty = 0;
 	mutex_unlock(&sbi->s_alloc_mutex);
diff --git a/fs/udf/symlink.c b/fs/udf/symlink.c
index b1d4488b0f14..d7c6dbe4194b 100644
--- a/fs/udf/symlink.c
+++ b/fs/udf/symlink.c
@@ -41,10 +41,16 @@ static void udf_pc_to_char(struct super_block *sb, unsigned char *from,
 		pc = (struct pathComponent *)(from + elen);
 		switch (pc->componentType) {
 		case 1:
-			if (pc->lengthComponentIdent == 0) {
-				p = to;
-				*p++ = '/';
-			}
+			/*
+			 * Symlink points to some place which should be agreed
+ 			 * upon between originator and receiver of the media. Ignore.
+			 */
+			if (pc->lengthComponentIdent > 0)
+				break;
+			/* Fall through */
+		case 2:
+			p = to;
+			*p++ = '/';
 			break;
 		case 3:
 			memcpy(p, "../", 3);
diff --git a/fs/xfs/xfs_discard.c b/fs/xfs/xfs_discard.c
index 8a24f0c6c860..286a051f12cf 100644
--- a/fs/xfs/xfs_discard.c
+++ b/fs/xfs/xfs_discard.c
@@ -68,7 +68,7 @@ xfs_trim_extents(
 	 * Look up the longest btree in the AGF and start with it.
 	 */
 	error = xfs_alloc_lookup_le(cur, 0,
-				    XFS_BUF_TO_AGF(agbp)->agf_longest, &i);
+			    be32_to_cpu(XFS_BUF_TO_AGF(agbp)->agf_longest), &i);
 	if (error)
 		goto out_del_cursor;
 
@@ -84,7 +84,7 @@ xfs_trim_extents(
 		if (error)
 			goto out_del_cursor;
 		XFS_WANT_CORRUPTED_GOTO(i == 1, out_del_cursor);
-		ASSERT(flen <= XFS_BUF_TO_AGF(agbp)->agf_longest);
+		ASSERT(flen <= be32_to_cpu(XFS_BUF_TO_AGF(agbp)->agf_longest));
 
 		/*
 		 * Too small?  Give up.
diff --git a/include/asm-generic/io.h b/include/asm-generic/io.h
index 912088773a69..448303bdb85f 100644
--- a/include/asm-generic/io.h
+++ b/include/asm-generic/io.h
@@ -19,6 +19,8 @@
 #include <asm-generic/iomap.h>
 #endif
 
+#include <asm-generic/pci_iomap.h>
+
 #ifndef mmiowb
 #define mmiowb() do {} while (0)
 #endif
@@ -283,9 +285,7 @@ static inline void writesb(const void __iomem *addr, const void *buf, int len)
 #define __io_virt(x) ((void __force *) (x))
 
 #ifndef CONFIG_GENERIC_IOMAP
-/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
 struct pci_dev;
-extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
 static inline void pci_iounmap(struct pci_dev *dev, void __iomem *p)
 {
 }
@@ -327,7 +327,7 @@ static inline void __iomem *ioremap(phys_addr_t offset, unsigned long size)
 #define ioremap_wc ioremap_nocache
 #endif
 
-static inline void iounmap(void *addr)
+static inline void iounmap(void __iomem *addr)
 {
 }
 #endif /* CONFIG_MMU */
diff --git a/include/asm-generic/iomap.h b/include/asm-generic/iomap.h
index 98dcd76ce836..8a3d4fde2604 100644
--- a/include/asm-generic/iomap.h
+++ b/include/asm-generic/iomap.h
@@ -67,18 +67,15 @@ extern void ioport_unmap(void __iomem *);
 #endif
 
 #ifdef CONFIG_PCI
-/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
+/* Destroy a virtual mapping cookie for a PCI BAR (memory or IO) */
 struct pci_dev;
-extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
 extern void pci_iounmap(struct pci_dev *dev, void __iomem *);
 #else
 struct pci_dev;
-static inline void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
-{
-	return NULL;
-}
 static inline void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
 { }
 #endif
 
+#include <asm-generic/pci_iomap.h>
+
 #endif
diff --git a/include/asm-generic/page.h b/include/asm-generic/page.h
index 351889d1de19..37d1fe28960a 100644
--- a/include/asm-generic/page.h
+++ b/include/asm-generic/page.h
@@ -71,10 +71,14 @@ extern unsigned long memory_end;
 #define PAGE_OFFSET		(0)
 #endif
 
+#ifndef ARCH_PFN_OFFSET
+#define ARCH_PFN_OFFSET		(PAGE_OFFSET >> PAGE_SHIFT)
+#endif
+
 #ifndef __ASSEMBLY__
 
-#define __va(x) ((void *)((unsigned long)(x) + PAGE_OFFSET))
-#define __pa(x) ((unsigned long) (x) - PAGE_OFFSET)
+#define __va(x) ((void *)((unsigned long) (x)))
+#define __pa(x) ((unsigned long) (x))
 
 #define virt_to_pfn(kaddr)	(__pa(kaddr) >> PAGE_SHIFT)
 #define pfn_to_virt(pfn)	__va((pfn) << PAGE_SHIFT)
@@ -86,7 +90,7 @@ extern unsigned long memory_end;
 #define page_to_phys(page)      ((dma_addr_t)page_to_pfn(page) << PAGE_SHIFT)
 #endif
 
-#define pfn_valid(pfn)		((pfn) < max_mapnr)
+#define pfn_valid(pfn)		((pfn) >= ARCH_PFN_OFFSET && ((pfn) - ARCH_PFN_OFFSET) < max_mapnr)
 
 #define	virt_addr_valid(kaddr)	(((void *)(kaddr) >= (void *)PAGE_OFFSET) && \
 				((void *)(kaddr) < (void *)memory_end))
diff --git a/include/asm-generic/pci_iomap.h b/include/asm-generic/pci_iomap.h
new file mode 100644
index 000000000000..8de4b73e19e2
--- /dev/null
+++ b/include/asm-generic/pci_iomap.h
@@ -0,0 +1,25 @@
+/* Generic I/O port emulation, based on MN10300 code
+ *
+ * Copyright (C) 2007 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+#ifndef __ASM_GENERIC_PCI_IOMAP_H
+#define __ASM_GENERIC_PCI_IOMAP_H
+
+struct pci_dev;
+#ifdef CONFIG_PCI
+/* Create a virtual mapping cookie for a PCI BAR (memory or IO) */
+extern void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max);
+#else
+static inline void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
+{
+	return NULL;
+}
+#endif
+
+#endif /* __ASM_GENERIC_IO_H */
diff --git a/include/asm-generic/uaccess.h b/include/asm-generic/uaccess.h
index ac68c999b6c2..9788568f7978 100644
--- a/include/asm-generic/uaccess.h
+++ b/include/asm-generic/uaccess.h
@@ -289,9 +289,14 @@ strncpy_from_user(char *dst, const char __user *src, long count)
  * Return 0 on exception, a value greater than N if too long
  */
 #ifndef __strnlen_user
-#define __strnlen_user strnlen
+#define __strnlen_user(s, n) (strnlen((s), (n)) + 1)
 #endif
 
+/*
+ * Unlike strnlen, strnlen_user includes the nul terminator in
+ * its returned count. Callers should check for a returned value
+ * greater than N as an indication the string is too long.
+ */
 static inline long strnlen_user(const char __user *src, long n)
 {
 	if (!access_ok(VERIFY_READ, src, 1))
diff --git a/include/drm/Kbuild b/include/drm/Kbuild
index 3a60ac889520..a5c0e10fd47d 100644
--- a/include/drm/Kbuild
+++ b/include/drm/Kbuild
@@ -1,4 +1,5 @@
 header-y += drm.h
+header-y += drm_fourcc.h
 header-y += drm_mode.h
 header-y += drm_sarea.h
 header-y += i810_drm.h
diff --git a/include/drm/drm.h b/include/drm/drm.h
index 4be33b4ca2f8..49d94ede2ec2 100644
--- a/include/drm/drm.h
+++ b/include/drm/drm.h
@@ -714,6 +714,10 @@ struct drm_get_cap {
 #define DRM_IOCTL_MODE_CREATE_DUMB DRM_IOWR(0xB2, struct drm_mode_create_dumb)
 #define DRM_IOCTL_MODE_MAP_DUMB    DRM_IOWR(0xB3, struct drm_mode_map_dumb)
 #define DRM_IOCTL_MODE_DESTROY_DUMB    DRM_IOWR(0xB4, struct drm_mode_destroy_dumb)
+#define DRM_IOCTL_MODE_GETPLANERESOURCES DRM_IOWR(0xB5, struct drm_mode_get_plane_res)
+#define DRM_IOCTL_MODE_GETPLANE	DRM_IOWR(0xB6, struct drm_mode_get_plane)
+#define DRM_IOCTL_MODE_SETPLANE	DRM_IOWR(0xB7, struct drm_mode_set_plane)
+#define DRM_IOCTL_MODE_ADDFB2		DRM_IOWR(0xB8, struct drm_mode_fb_cmd2)
 
 /**
  * Device specific ioctls should only be in their respective headers
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index e8acca892af0..76caa67c22e2 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -918,7 +918,7 @@ struct drm_driver {
 	int dev_priv_size;
 	struct drm_ioctl_desc *ioctls;
 	int num_ioctls;
-	struct file_operations fops;
+	const struct file_operations *fops;
 	union {
 		struct pci_driver *pci;
 		struct platform_device *platform_device;
@@ -1696,5 +1696,13 @@ extern void drm_platform_exit(struct drm_driver *driver, struct platform_device
 extern int drm_get_platform_dev(struct platform_device *pdev,
 				struct drm_driver *driver);
 
+/* returns true if currently okay to sleep */
+static __inline__ bool drm_can_sleep(void)
+{
+	if (in_atomic() || in_dbg_master() || irqs_disabled())
+		return false;
+	return true;
+}
+
 #endif				/* __KERNEL__ */
 #endif
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 802079809282..63e4fce67288 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -29,9 +29,10 @@
 #include <linux/spinlock.h>
 #include <linux/types.h>
 #include <linux/idr.h>
-
 #include <linux/fb.h>
 
+#include <drm/drm_fourcc.h>
+
 struct drm_device;
 struct drm_mode_set;
 struct drm_framebuffer;
@@ -44,6 +45,7 @@ struct drm_framebuffer;
 #define DRM_MODE_OBJECT_PROPERTY 0xb0b0b0b0
 #define DRM_MODE_OBJECT_FB 0xfbfbfbfb
 #define DRM_MODE_OBJECT_BLOB 0xbbbbbbbb
+#define DRM_MODE_OBJECT_PLANE 0xeeeeeeee
 
 struct drm_mode_object {
 	uint32_t id;
@@ -118,7 +120,6 @@ struct drm_display_mode {
 
 	char name[DRM_DISPLAY_MODE_LEN];
 
-	int connector_count;
 	enum drm_mode_status status;
 	int type;
 
@@ -238,13 +239,15 @@ struct drm_framebuffer {
 	struct list_head head;
 	struct drm_mode_object base;
 	const struct drm_framebuffer_funcs *funcs;
-	unsigned int pitch;
+	unsigned int pitches[4];
+	unsigned int offsets[4];
 	unsigned int width;
 	unsigned int height;
 	/* depth can be 15 or 16 */
 	unsigned int depth;
 	int bits_per_pixel;
 	int flags;
+	uint32_t pixel_format; /* fourcc format */
 	struct list_head filp_head;
 	/* if you are using the helper */
 	void *helper_private;
@@ -278,6 +281,7 @@ struct drm_crtc;
 struct drm_connector;
 struct drm_encoder;
 struct drm_pending_vblank_event;
+struct drm_plane;
 
 /**
  * drm_crtc_funcs - control CRTCs for a given device
@@ -341,10 +345,21 @@ struct drm_crtc_funcs {
 
 /**
  * drm_crtc - central CRTC control structure
+ * @dev: parent DRM device
+ * @head: list management
+ * @base: base KMS object for ID tracking etc.
  * @enabled: is this CRTC enabled?
+ * @mode: current mode timings
+ * @hwmode: mode timings as programmed to hw regs
  * @x: x position on screen
  * @y: y position on screen
  * @funcs: CRTC control functions
+ * @gamma_size: size of gamma ramp
+ * @gamma_store: gamma ramp values
+ * @framedur_ns: precise frame timing
+ * @framedur_ns: precise line timing
+ * @pixeldur_ns: precise pixel timing
+ * @helper_private: mid-layer private data
  *
  * Each CRTC may have one or more connectors associated with it.  This structure
  * allows the CRTC to be controlled.
@@ -423,6 +438,13 @@ struct drm_connector_funcs {
 	void (*force)(struct drm_connector *connector);
 };
 
+/**
+ * drm_encoder_funcs - encoder controls
+ * @reset: reset state (e.g. at init or resume time)
+ * @destroy: cleanup and free associated data
+ *
+ * Encoders sit between CRTCs and connectors.
+ */
 struct drm_encoder_funcs {
 	void (*reset)(struct drm_encoder *encoder);
 	void (*destroy)(struct drm_encoder *encoder);
@@ -435,6 +457,18 @@ struct drm_encoder_funcs {
 
 /**
  * drm_encoder - central DRM encoder structure
+ * @dev: parent DRM device
+ * @head: list management
+ * @base: base KMS object
+ * @encoder_type: one of the %DRM_MODE_ENCODER_<foo> types in drm_mode.h
+ * @possible_crtcs: bitmask of potential CRTC bindings
+ * @possible_clones: bitmask of potential sibling encoders for cloning
+ * @crtc: currently bound CRTC
+ * @funcs: control functions
+ * @helper_private: mid-layer private data
+ *
+ * CRTCs drive pixels to encoders, which convert them into signals
+ * appropriate for a given connector or set of connectors.
  */
 struct drm_encoder {
 	struct drm_device *dev;
@@ -470,14 +504,37 @@ enum drm_connector_force {
 
 /**
  * drm_connector - central DRM connector control structure
- * @crtc: CRTC this connector is currently connected to, NULL if none
+ * @dev: parent DRM device
+ * @kdev: kernel device for sysfs attributes
+ * @attr: sysfs attributes
+ * @head: list management
+ * @base: base KMS object
+ * @connector_type: one of the %DRM_MODE_CONNECTOR_<foo> types from drm_mode.h
+ * @connector_type_id: index into connector type enum
  * @interlace_allowed: can this connector handle interlaced modes?
  * @doublescan_allowed: can this connector handle doublescan?
- * @available_modes: modes available on this connector (from get_modes() + user)
- * @initial_x: initial x position for this connector
- * @initial_y: initial y position for this connector
- * @status: connector connected?
+ * @modes: modes available on this connector (from fill_modes() + user)
+ * @status: one of the drm_connector_status enums (connected, not, or unknown)
+ * @probed_modes: list of modes derived directly from the display
+ * @display_info: information about attached display (e.g. from EDID)
  * @funcs: connector control functions
+ * @user_modes: user added mode list
+ * @edid_blob_ptr: DRM property containing EDID if present
+ * @property_ids: property tracking for this connector
+ * @property_values: value pointers or data for properties
+ * @polled: a %DRM_CONNECTOR_POLL_<foo> value for core driven polling
+ * @dpms: current dpms state
+ * @helper_private: mid-layer private data
+ * @force: a %DRM_FORCE_<foo> state for forced mode sets
+ * @encoder_ids: valid encoders for this connector
+ * @encoder: encoder driving this connector, if any
+ * @eld: EDID-like data, if present
+ * @dvi_dual: dual link DVI, if found
+ * @max_tmds_clock: max clock rate, if found
+ * @latency_present: AV delay info from ELD, if found
+ * @video_latency: video latency info from ELD, if found
+ * @audio_latency: audio latency info from ELD, if found
+ * @null_edid_counter: track sinks that give us all zeros for the EDID
  *
  * Each connector may be connected to one or more CRTCs, or may be clonable by
  * another connector if they can share a CRTC.  Each connector also has a specific
@@ -498,7 +555,6 @@ struct drm_connector {
 	bool doublescan_allowed;
 	struct list_head modes; /* list of modes on this connector */
 
-	int initial_x, initial_y;
 	enum drm_connector_status status;
 
 	/* these are modes added by probing with DDC or the BIOS */
@@ -522,7 +578,6 @@ struct drm_connector {
 	/* forced on connector */
 	enum drm_connector_force force;
 	uint32_t encoder_ids[DRM_CONNECTOR_MAX_ENCODER];
-	uint32_t force_encoder_id;
 	struct drm_encoder *encoder; /* currently active encoder */
 
 	/* EDID bits */
@@ -536,7 +591,71 @@ struct drm_connector {
 };
 
 /**
- * struct drm_mode_set
+ * drm_plane_funcs - driver plane control functions
+ * @update_plane: update the plane configuration
+ * @disable_plane: shut down the plane
+ * @destroy: clean up plane resources
+ */
+struct drm_plane_funcs {
+	int (*update_plane)(struct drm_plane *plane,
+			    struct drm_crtc *crtc, struct drm_framebuffer *fb,
+			    int crtc_x, int crtc_y,
+			    unsigned int crtc_w, unsigned int crtc_h,
+			    uint32_t src_x, uint32_t src_y,
+			    uint32_t src_w, uint32_t src_h);
+	int (*disable_plane)(struct drm_plane *plane);
+	void (*destroy)(struct drm_plane *plane);
+};
+
+/**
+ * drm_plane - central DRM plane control structure
+ * @dev: DRM device this plane belongs to
+ * @head: for list management
+ * @base: base mode object
+ * @possible_crtcs: pipes this plane can be bound to
+ * @format_types: array of formats supported by this plane
+ * @format_count: number of formats supported
+ * @crtc: currently bound CRTC
+ * @fb: currently bound fb
+ * @gamma_size: size of gamma table
+ * @gamma_store: gamma correction table
+ * @enabled: enabled flag
+ * @funcs: helper functions
+ * @helper_private: storage for drver layer
+ */
+struct drm_plane {
+	struct drm_device *dev;
+	struct list_head head;
+
+	struct drm_mode_object base;
+
+	uint32_t possible_crtcs;
+	uint32_t *format_types;
+	uint32_t format_count;
+
+	struct drm_crtc *crtc;
+	struct drm_framebuffer *fb;
+
+	/* CRTC gamma size for reporting to userspace */
+	uint32_t gamma_size;
+	uint16_t *gamma_store;
+
+	bool enabled;
+
+	const struct drm_plane_funcs *funcs;
+	void *helper_private;
+};
+
+/**
+ * drm_mode_set - new values for a CRTC config change
+ * @head: list management
+ * @fb: framebuffer to use for new config
+ * @crtc: CRTC whose configuration we're about to change
+ * @mode: mode timings to use
+ * @x: position of this CRTC relative to @fb
+ * @y: position of this CRTC relative to @fb
+ * @connectors: array of connectors to drive with this CRTC if possible
+ * @num_connectors: size of @connectors array
  *
  * Represents a single crtc the connectors that it drives with what mode
  * and from which framebuffer it scans out from.
@@ -558,13 +677,33 @@ struct drm_mode_set {
 };
 
 /**
- * struct drm_mode_config_funcs - configure CRTCs for a given screen layout
+ * struct drm_mode_config_funcs - basic driver provided mode setting functions
+ * @fb_create: create a new framebuffer object
+ * @output_poll_changed: function to handle output configuration changes
+ *
+ * Some global (i.e. not per-CRTC, connector, etc) mode setting functions that
+ * involve drivers.
  */
 struct drm_mode_config_funcs {
-	struct drm_framebuffer *(*fb_create)(struct drm_device *dev, struct drm_file *file_priv, struct drm_mode_fb_cmd *mode_cmd);
+	struct drm_framebuffer *(*fb_create)(struct drm_device *dev,
+					     struct drm_file *file_priv,
+					     struct drm_mode_fb_cmd2 *mode_cmd);
 	void (*output_poll_changed)(struct drm_device *dev);
 };
 
+/**
+ * drm_mode_group - group of mode setting resources for potential sub-grouping
+ * @num_crtcs: CRTC count
+ * @num_encoders: encoder count
+ * @num_connectors: connector count
+ * @id_list: list of KMS object IDs in this group
+ *
+ * Currently this simply tracks the global mode setting state.  But in the
+ * future it could allow groups of objects to be set aside into independent
+ * control groups for use by different user level processes (e.g. two X servers
+ * running simultaneously on different heads, each with their own mode
+ * configuration and freedom of mode setting).
+ */
 struct drm_mode_group {
 	uint32_t num_crtcs;
 	uint32_t num_encoders;
@@ -576,7 +715,30 @@ struct drm_mode_group {
 
 /**
  * drm_mode_config - Mode configuration control structure
+ * @mutex: mutex protecting KMS related lists and structures
+ * @idr_mutex: mutex for KMS ID allocation and management
+ * @crtc_idr: main KMS ID tracking object
+ * @num_fb: number of fbs available
+ * @fb_list: list of framebuffers available
+ * @num_connector: number of connectors on this device
+ * @connector_list: list of connector objects
+ * @num_encoder: number of encoders on this device
+ * @encoder_list: list of encoder objects
+ * @num_crtc: number of CRTCs on this device
+ * @crtc_list: list of CRTC objects
+ * @min_width: minimum pixel width on this device
+ * @min_height: minimum pixel height on this device
+ * @max_width: maximum pixel width on this device
+ * @max_height: maximum pixel height on this device
+ * @funcs: core driver provided mode setting functions
+ * @fb_base: base address of the framebuffer
+ * @poll_enabled: track polling status for this device
+ * @output_poll_work: delayed work for polling in process context
+ * @*_property: core property tracking
  *
+ * Core mode resource tracking structure.  All CRTC, encoders, and connectors
+ * enumerated by the driver are added here, as are global properties.  Some
+ * global restrictions are also here, e.g. dimension restrictions.
  */
 struct drm_mode_config {
 	struct mutex mutex; /* protects configuration (mode lists etc.) */
@@ -589,6 +751,8 @@ struct drm_mode_config {
 	struct list_head connector_list;
 	int num_encoder;
 	struct list_head encoder_list;
+	int num_plane;
+	struct list_head plane_list;
 
 	int num_crtc;
 	struct list_head crtc_list;
@@ -641,6 +805,7 @@ struct drm_mode_config {
 #define obj_to_fb(x) container_of(x, struct drm_framebuffer, base)
 #define obj_to_property(x) container_of(x, struct drm_property, base)
 #define obj_to_blob(x) container_of(x, struct drm_property_blob, base)
+#define obj_to_plane(x) container_of(x, struct drm_plane, base)
 
 
 extern void drm_crtc_init(struct drm_device *dev,
@@ -660,6 +825,14 @@ extern void drm_encoder_init(struct drm_device *dev,
 			     const struct drm_encoder_funcs *funcs,
 			     int encoder_type);
 
+extern int drm_plane_init(struct drm_device *dev,
+			  struct drm_plane *plane,
+			  unsigned long possible_crtcs,
+			  const struct drm_plane_funcs *funcs,
+			  const uint32_t *formats, uint32_t format_count,
+			  bool priv);
+extern void drm_plane_cleanup(struct drm_plane *plane);
+
 extern void drm_encoder_cleanup(struct drm_encoder *encoder);
 
 extern char *drm_get_connector_name(struct drm_connector *connector);
@@ -753,17 +926,25 @@ extern struct drm_mode_object *drm_mode_object_find(struct drm_device *dev,
 /* IOCTLs */
 extern int drm_mode_getresources(struct drm_device *dev,
 				 void *data, struct drm_file *file_priv);
-
+extern int drm_mode_getplane_res(struct drm_device *dev, void *data,
+				   struct drm_file *file_priv);
 extern int drm_mode_getcrtc(struct drm_device *dev,
 			    void *data, struct drm_file *file_priv);
 extern int drm_mode_getconnector(struct drm_device *dev,
 			      void *data, struct drm_file *file_priv);
 extern int drm_mode_setcrtc(struct drm_device *dev,
 			    void *data, struct drm_file *file_priv);
+extern int drm_mode_getplane(struct drm_device *dev,
+			       void *data, struct drm_file *file_priv);
+extern int drm_mode_setplane(struct drm_device *dev,
+			       void *data, struct drm_file *file_priv);
 extern int drm_mode_cursor_ioctl(struct drm_device *dev,
 				void *data, struct drm_file *file_priv);
 extern int drm_mode_addfb(struct drm_device *dev,
 			  void *data, struct drm_file *file_priv);
+extern int drm_mode_addfb2(struct drm_device *dev,
+			   void *data, struct drm_file *file_priv);
+extern uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth);
 extern int drm_mode_rmfb(struct drm_device *dev,
 			 void *data, struct drm_file *file_priv);
 extern int drm_mode_getfb(struct drm_device *dev,
@@ -824,4 +1005,7 @@ extern int drm_mode_mmap_dumb_ioctl(struct drm_device *dev,
 				    void *data, struct drm_file *file_priv);
 extern int drm_mode_destroy_dumb_ioctl(struct drm_device *dev,
 				      void *data, struct drm_file *file_priv);
+
+extern void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth,
+				 int *bpp);
 #endif /* __DRM_CRTC_H__ */
diff --git a/include/drm/drm_crtc_helper.h b/include/drm/drm_crtc_helper.h
index 73b071203dcc..37515d1afab3 100644
--- a/include/drm/drm_crtc_helper.h
+++ b/include/drm/drm_crtc_helper.h
@@ -117,7 +117,7 @@ extern bool drm_helper_encoder_in_use(struct drm_encoder *encoder);
 extern void drm_helper_connector_dpms(struct drm_connector *connector, int mode);
 
 extern int drm_helper_mode_fill_fb_struct(struct drm_framebuffer *fb,
-					  struct drm_mode_fb_cmd *mode_cmd);
+					  struct drm_mode_fb_cmd2 *mode_cmd);
 
 static inline void drm_crtc_helper_add(struct drm_crtc *crtc,
 				       const struct drm_crtc_helper_funcs *funcs)
@@ -144,4 +144,7 @@ extern void drm_helper_hpd_irq_event(struct drm_device *dev);
 
 extern void drm_kms_helper_poll_disable(struct drm_device *dev);
 extern void drm_kms_helper_poll_enable(struct drm_device *dev);
+
+extern int drm_format_num_planes(uint32_t format);
+
 #endif
diff --git a/include/drm/drm_fourcc.h b/include/drm/drm_fourcc.h
new file mode 100644
index 000000000000..bdf0152cbbe9
--- /dev/null
+++ b/include/drm/drm_fourcc.h
@@ -0,0 +1,137 @@
+/*
+ * Copyright 2011 Intel Corporation
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#ifndef DRM_FOURCC_H
+#define DRM_FOURCC_H
+
+#include <linux/types.h>
+
+#define fourcc_code(a, b, c, d) ((__u32)(a) | ((__u32)(b) << 8) | \
+				 ((__u32)(c) << 16) | ((__u32)(d) << 24))
+
+#define DRM_FORMAT_BIG_ENDIAN (1<<31) /* format is big endian instead of little endian */
+
+/* color index */
+#define DRM_FORMAT_C8		fourcc_code('C', '8', ' ', ' ') /* [7:0] C */
+
+/* 8 bpp RGB */
+#define DRM_FORMAT_RGB332	fourcc_code('R', 'G', 'B', '8') /* [7:0] R:G:B 3:3:2 */
+#define DRM_FORMAT_BGR233	fourcc_code('B', 'G', 'R', '8') /* [7:0] B:G:R 2:3:3 */
+
+/* 16 bpp RGB */
+#define DRM_FORMAT_XRGB4444	fourcc_code('X', 'R', '1', '2') /* [15:0] x:R:G:B 4:4:4:4 little endian */
+#define DRM_FORMAT_XBGR4444	fourcc_code('X', 'B', '1', '2') /* [15:0] x:B:G:R 4:4:4:4 little endian */
+#define DRM_FORMAT_RGBX4444	fourcc_code('R', 'X', '1', '2') /* [15:0] R:G:B:x 4:4:4:4 little endian */
+#define DRM_FORMAT_BGRX4444	fourcc_code('B', 'X', '1', '2') /* [15:0] B:G:R:x 4:4:4:4 little endian */
+
+#define DRM_FORMAT_ARGB4444	fourcc_code('A', 'R', '1', '2') /* [15:0] A:R:G:B 4:4:4:4 little endian */
+#define DRM_FORMAT_ABGR4444	fourcc_code('A', 'B', '1', '2') /* [15:0] A:B:G:R 4:4:4:4 little endian */
+#define DRM_FORMAT_RGBA4444	fourcc_code('R', 'A', '1', '2') /* [15:0] R:G:B:A 4:4:4:4 little endian */
+#define DRM_FORMAT_BGRA4444	fourcc_code('B', 'A', '1', '2') /* [15:0] B:G:R:A 4:4:4:4 little endian */
+
+#define DRM_FORMAT_XRGB1555	fourcc_code('X', 'R', '1', '5') /* [15:0] x:R:G:B 1:5:5:5 little endian */
+#define DRM_FORMAT_XBGR1555	fourcc_code('X', 'B', '1', '5') /* [15:0] x:B:G:R 1:5:5:5 little endian */
+#define DRM_FORMAT_RGBX5551	fourcc_code('R', 'X', '1', '5') /* [15:0] R:G:B:x 5:5:5:1 little endian */
+#define DRM_FORMAT_BGRX5551	fourcc_code('B', 'X', '1', '5') /* [15:0] B:G:R:x 5:5:5:1 little endian */
+
+#define DRM_FORMAT_ARGB1555	fourcc_code('A', 'R', '1', '5') /* [15:0] A:R:G:B 1:5:5:5 little endian */
+#define DRM_FORMAT_ABGR1555	fourcc_code('A', 'B', '1', '5') /* [15:0] A:B:G:R 1:5:5:5 little endian */
+#define DRM_FORMAT_RGBA5551	fourcc_code('R', 'A', '1', '5') /* [15:0] R:G:B:A 5:5:5:1 little endian */
+#define DRM_FORMAT_BGRA5551	fourcc_code('B', 'A', '1', '5') /* [15:0] B:G:R:A 5:5:5:1 little endian */
+
+#define DRM_FORMAT_RGB565	fourcc_code('R', 'G', '1', '6') /* [15:0] R:G:B 5:6:5 little endian */
+#define DRM_FORMAT_BGR565	fourcc_code('B', 'G', '1', '6') /* [15:0] B:G:R 5:6:5 little endian */
+
+/* 24 bpp RGB */
+#define DRM_FORMAT_RGB888	fourcc_code('R', 'G', '2', '4') /* [23:0] R:G:B little endian */
+#define DRM_FORMAT_BGR888	fourcc_code('B', 'G', '2', '4') /* [23:0] B:G:R little endian */
+
+/* 32 bpp RGB */
+#define DRM_FORMAT_XRGB8888	fourcc_code('X', 'R', '2', '4') /* [31:0] x:R:G:B 8:8:8:8 little endian */
+#define DRM_FORMAT_XBGR8888	fourcc_code('X', 'B', '2', '4') /* [31:0] x:B:G:R 8:8:8:8 little endian */
+#define DRM_FORMAT_RGBX8888	fourcc_code('R', 'X', '2', '4') /* [31:0] R:G:B:x 8:8:8:8 little endian */
+#define DRM_FORMAT_BGRX8888	fourcc_code('B', 'X', '2', '4') /* [31:0] B:G:R:x 8:8:8:8 little endian */
+
+#define DRM_FORMAT_ARGB8888	fourcc_code('A', 'R', '2', '4') /* [31:0] A:R:G:B 8:8:8:8 little endian */
+#define DRM_FORMAT_ABGR8888	fourcc_code('A', 'B', '2', '4') /* [31:0] A:B:G:R 8:8:8:8 little endian */
+#define DRM_FORMAT_RGBA8888	fourcc_code('R', 'A', '2', '4') /* [31:0] R:G:B:A 8:8:8:8 little endian */
+#define DRM_FORMAT_BGRA8888	fourcc_code('B', 'A', '2', '4') /* [31:0] B:G:R:A 8:8:8:8 little endian */
+
+#define DRM_FORMAT_XRGB2101010	fourcc_code('X', 'R', '3', '0') /* [31:0] x:R:G:B 2:10:10:10 little endian */
+#define DRM_FORMAT_XBGR2101010	fourcc_code('X', 'B', '3', '0') /* [31:0] x:B:G:R 2:10:10:10 little endian */
+#define DRM_FORMAT_RGBX1010102	fourcc_code('R', 'X', '3', '0') /* [31:0] R:G:B:x 10:10:10:2 little endian */
+#define DRM_FORMAT_BGRX1010102	fourcc_code('B', 'X', '3', '0') /* [31:0] B:G:R:x 10:10:10:2 little endian */
+
+#define DRM_FORMAT_ARGB2101010	fourcc_code('A', 'R', '3', '0') /* [31:0] A:R:G:B 2:10:10:10 little endian */
+#define DRM_FORMAT_ABGR2101010	fourcc_code('A', 'B', '3', '0') /* [31:0] A:B:G:R 2:10:10:10 little endian */
+#define DRM_FORMAT_RGBA1010102	fourcc_code('R', 'A', '3', '0') /* [31:0] R:G:B:A 10:10:10:2 little endian */
+#define DRM_FORMAT_BGRA1010102	fourcc_code('B', 'A', '3', '0') /* [31:0] B:G:R:A 10:10:10:2 little endian */
+
+/* packed YCbCr */
+#define DRM_FORMAT_YUYV		fourcc_code('Y', 'U', 'Y', 'V') /* [31:0] Cr0:Y1:Cb0:Y0 8:8:8:8 little endian */
+#define DRM_FORMAT_YVYU		fourcc_code('Y', 'V', 'Y', 'U') /* [31:0] Cb0:Y1:Cr0:Y0 8:8:8:8 little endian */
+#define DRM_FORMAT_UYVY		fourcc_code('U', 'Y', 'V', 'Y') /* [31:0] Y1:Cr0:Y0:Cb0 8:8:8:8 little endian */
+#define DRM_FORMAT_VYUY		fourcc_code('V', 'Y', 'U', 'Y') /* [31:0] Y1:Cb0:Y0:Cr0 8:8:8:8 little endian */
+
+#define DRM_FORMAT_AYUV		fourcc_code('A', 'Y', 'U', 'V') /* [31:0] A:Y:Cb:Cr 8:8:8:8 little endian */
+
+/*
+ * 2 plane YCbCr
+ * index 0 = Y plane, [7:0] Y
+ * index 1 = Cr:Cb plane, [15:0] Cr:Cb little endian
+ * or
+ * index 1 = Cb:Cr plane, [15:0] Cb:Cr little endian
+ */
+#define DRM_FORMAT_NV12		fourcc_code('N', 'V', '1', '2') /* 2x2 subsampled Cr:Cb plane */
+#define DRM_FORMAT_NV21		fourcc_code('N', 'V', '2', '1') /* 2x2 subsampled Cb:Cr plane */
+#define DRM_FORMAT_NV16		fourcc_code('N', 'V', '1', '6') /* 2x1 subsampled Cr:Cb plane */
+#define DRM_FORMAT_NV61		fourcc_code('N', 'V', '6', '1') /* 2x1 subsampled Cb:Cr plane */
+
+/* 2 non contiguous plane YCbCr */
+#define DRM_FORMAT_NV12M	fourcc_code('N', 'M', '1', '2') /* 2x2 subsampled Cr:Cb plane */
+#define DRM_FORMAT_NV12MT	fourcc_code('T', 'M', '1', '2') /* 2x2 subsampled Cr:Cb plane 64x32 macroblocks */
+
+/*
+ * 3 plane YCbCr
+ * index 0: Y plane, [7:0] Y
+ * index 1: Cb plane, [7:0] Cb
+ * index 2: Cr plane, [7:0] Cr
+ * or
+ * index 1: Cr plane, [7:0] Cr
+ * index 2: Cb plane, [7:0] Cb
+ */
+#define DRM_FORMAT_YUV410	fourcc_code('Y', 'U', 'V', '9') /* 4x4 subsampled Cb (1) and Cr (2) planes */
+#define DRM_FORMAT_YVU410	fourcc_code('Y', 'V', 'U', '9') /* 4x4 subsampled Cr (1) and Cb (2) planes */
+#define DRM_FORMAT_YUV411	fourcc_code('Y', 'U', '1', '1') /* 4x1 subsampled Cb (1) and Cr (2) planes */
+#define DRM_FORMAT_YVU411	fourcc_code('Y', 'V', '1', '1') /* 4x1 subsampled Cr (1) and Cb (2) planes */
+#define DRM_FORMAT_YUV420	fourcc_code('Y', 'U', '1', '2') /* 2x2 subsampled Cb (1) and Cr (2) planes */
+#define DRM_FORMAT_YVU420	fourcc_code('Y', 'V', '1', '2') /* 2x2 subsampled Cr (1) and Cb (2) planes */
+#define DRM_FORMAT_YUV422	fourcc_code('Y', 'U', '1', '6') /* 2x1 subsampled Cb (1) and Cr (2) planes */
+#define DRM_FORMAT_YVU422	fourcc_code('Y', 'V', '1', '6') /* 2x1 subsampled Cr (1) and Cb (2) planes */
+#define DRM_FORMAT_YUV444	fourcc_code('Y', 'U', '2', '4') /* non-subsampled Cb (1) and Cr (2) planes */
+#define DRM_FORMAT_YVU444	fourcc_code('Y', 'V', '2', '4') /* non-subsampled Cr (1) and Cb (2) planes */
+
+/* 3 non contiguous plane YCbCr */
+#define DRM_FORMAT_YUV420M	fourcc_code('Y', 'M', '1', '2') /* 2x2 subsampled Cb (1) and Cr (2) planes */
+
+#endif /* DRM_FOURCC_H */
diff --git a/include/drm/drm_mode.h b/include/drm/drm_mode.h
index ddd46db65b57..2a2acda8b437 100644
--- a/include/drm/drm_mode.h
+++ b/include/drm/drm_mode.h
@@ -120,11 +120,48 @@ struct drm_mode_crtc {
 	struct drm_mode_modeinfo mode;
 };
 
-#define DRM_MODE_ENCODER_NONE	 0
-#define DRM_MODE_ENCODER_DAC	 1
-#define DRM_MODE_ENCODER_TMDS	 2
-#define DRM_MODE_ENCODER_LVDS	 3
-#define DRM_MODE_ENCODER_TVDAC	 4
+#define DRM_MODE_PRESENT_TOP_FIELD	(1<<0)
+#define DRM_MODE_PRESENT_BOTTOM_FIELD	(1<<1)
+
+/* Planes blend with or override other bits on the CRTC */
+struct drm_mode_set_plane {
+	__u32 plane_id;
+	__u32 crtc_id;
+	__u32 fb_id; /* fb object contains surface format type */
+	__u32 flags; /* see above flags */
+
+	/* Signed dest location allows it to be partially off screen */
+	__s32 crtc_x, crtc_y;
+	__u32 crtc_w, crtc_h;
+
+	/* Source values are 16.16 fixed point */
+	__u32 src_x, src_y;
+	__u32 src_h, src_w;
+};
+
+struct drm_mode_get_plane {
+	__u32 plane_id;
+
+	__u32 crtc_id;
+	__u32 fb_id;
+
+	__u32 possible_crtcs;
+	__u32 gamma_size;
+
+	__u32 count_format_types;
+	__u64 format_type_ptr;
+};
+
+struct drm_mode_get_plane_res {
+	__u64 plane_id_ptr;
+	__u32 count_planes;
+};
+
+#define DRM_MODE_ENCODER_NONE	0
+#define DRM_MODE_ENCODER_DAC	1
+#define DRM_MODE_ENCODER_TMDS	2
+#define DRM_MODE_ENCODER_LVDS	3
+#define DRM_MODE_ENCODER_TVDAC	4
 #define DRM_MODE_ENCODER_VIRTUAL 5
 
 struct drm_mode_get_encoder {
@@ -231,6 +268,33 @@ struct drm_mode_fb_cmd {
 	__u32 handle;
 };
 
+#define DRM_MODE_FB_INTERLACED	(1<<0) /* for interlaced framebuffers */
+
+struct drm_mode_fb_cmd2 {
+	__u32 fb_id;
+	__u32 width, height;
+	__u32 pixel_format; /* fourcc code from drm_fourcc.h */
+	__u32 flags; /* see above flags */
+
+	/*
+	 * In case of planar formats, this ioctl allows up to 4
+	 * buffer objects with offets and pitches per plane.
+	 * The pitch and offset order is dictated by the fourcc,
+	 * e.g. NV12 (http://fourcc.org/yuv.php#NV12) is described as:
+	 *
+	 *   YUV 4:2:0 image with a plane of 8 bit Y samples
+	 *   followed by an interleaved U/V plane containing
+	 *   8 bit 2x2 subsampled colour difference samples.
+	 *
+	 * So it would consist of Y as offset[0] and UV as
+	 * offeset[1].  Note that offset[0] will generally
+	 * be 0.
+	 */
+	__u32 handles[4];
+	__u32 pitches[4]; /* pitch for each plane */
+	__u32 offsets[4]; /* offset of each plane */
+};
+
 #define DRM_MODE_FB_DIRTY_ANNOTATE_COPY 0x01
 #define DRM_MODE_FB_DIRTY_ANNOTATE_FILL 0x02
 #define DRM_MODE_FB_DIRTY_FLAGS         0x03
diff --git a/include/drm/drm_sman.h b/include/drm/drm_sman.h
deleted file mode 100644
index 08ecf83ad5d4..000000000000
--- a/include/drm/drm_sman.h
+++ /dev/null
@@ -1,176 +0,0 @@
-/**************************************************************************
- *
- * Copyright 2006 Tungsten Graphics, Inc., Bismarck, ND., USA.
- * All Rights Reserved.
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sub license, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice (including the
- * next paragraph) shall be included in all copies or substantial portions
- * of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
- * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM,
- * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
- * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
- * USE OR OTHER DEALINGS IN THE SOFTWARE.
- *
- *
- **************************************************************************/
-/*
- * Simple memory MANager interface that keeps track on allocate regions on a
- * per "owner" basis. All regions associated with an "owner" can be released
- * with a simple call. Typically if the "owner" exists. The owner is any
- * "unsigned long" identifier. Can typically be a pointer to a file private
- * struct or a context identifier.
- *
- * Authors:
- * Thomas Hellström <thomas-at-tungstengraphics-dot-com>
- */
-
-#ifndef DRM_SMAN_H
-#define DRM_SMAN_H
-
-#include "drmP.h"
-#include "drm_hashtab.h"
-
-/*
- * A class that is an abstration of a simple memory allocator.
- * The sman implementation provides a default such allocator
- * using the drm_mm.c implementation. But the user can replace it.
- * See the SiS implementation, which may use the SiS FB kernel module
- * for memory management.
- */
-
-struct drm_sman_mm {
-	/* private info. If allocated, needs to be destroyed by the destroy
-	   function */
-	void *private;
-
-	/* Allocate a memory block with given size and alignment.
-	   Return an opaque reference to the memory block */
-
-	void *(*allocate) (void *private, unsigned long size,
-			   unsigned alignment);
-
-	/* Free a memory block. "ref" is the opaque reference that we got from
-	   the "alloc" function */
-
-	void (*free) (void *private, void *ref);
-
-	/* Free all resources associated with this allocator */
-
-	void (*destroy) (void *private);
-
-	/* Return a memory offset from the opaque reference returned from the
-	   "alloc" function */
-
-	unsigned long (*offset) (void *private, void *ref);
-};
-
-struct drm_memblock_item {
-	struct list_head owner_list;
-	struct drm_hash_item user_hash;
-	void *mm_info;
-	struct drm_sman_mm *mm;
-	struct drm_sman *sman;
-};
-
-struct drm_sman {
-	struct drm_sman_mm *mm;
-	int num_managers;
-	struct drm_open_hash owner_hash_tab;
-	struct drm_open_hash user_hash_tab;
-	struct list_head owner_items;
-};
-
-/*
- * Take down a memory manager. This function should only be called after a
- * successful init and after a call to drm_sman_cleanup.
- */
-
-extern void drm_sman_takedown(struct drm_sman * sman);
-
-/*
- * Allocate structures for a manager.
- * num_managers are the number of memory pools to manage. (VRAM, AGP, ....)
- * user_order is the log2 of the number of buckets in the user hash table.
- *	    set this to approximately log2 of the max number of memory regions
- *	    that will be allocated for _all_ pools together.
- * owner_order is the log2 of the number of buckets in the owner hash table.
- *	    set this to approximately log2 of
- *	    the number of client file connections that will
- *	    be using the manager.
- *
- */
-
-extern int drm_sman_init(struct drm_sman * sman, unsigned int num_managers,
-			 unsigned int user_order, unsigned int owner_order);
-
-/*
- * Initialize a drm_mm.c allocator. Should be called only once for each
- * manager unless a customized allogator is used.
- */
-
-extern int drm_sman_set_range(struct drm_sman * sman, unsigned int manager,
-			      unsigned long start, unsigned long size);
-
-/*
- * Initialize a customized allocator for one of the managers.
- * (See the SiS module). The object pointed to by "allocator" is copied,
- * so it can be destroyed after this call.
- */
-
-extern int drm_sman_set_manager(struct drm_sman * sman, unsigned int mananger,
-				struct drm_sman_mm * allocator);
-
-/*
- * Allocate a memory block. Aligment is not implemented yet.
- */
-
-extern struct drm_memblock_item *drm_sman_alloc(struct drm_sman * sman,
-						unsigned int manager,
-						unsigned long size,
-						unsigned alignment,
-						unsigned long owner);
-/*
- * Free a memory block identified by its user hash key.
- */
-
-extern int drm_sman_free_key(struct drm_sman * sman, unsigned int key);
-
-/*
- * returns 1 iff there are no stale memory blocks associated with this owner.
- * Typically called to determine if we need to idle the hardware and call
- * drm_sman_owner_cleanup. If there are no stale memory blocks, it removes all
- * resources associated with owner.
- */
-
-extern int drm_sman_owner_clean(struct drm_sman * sman, unsigned long owner);
-
-/*
- * Frees all stale memory blocks associated with this owner. Note that this
- * requires that the hardware is finished with all blocks, so the graphics engine
- * should be idled before this call is made. This function also frees
- * any resources associated with "owner" and should be called when owner
- * is not going to be referenced anymore.
- */
-
-extern void drm_sman_owner_cleanup(struct drm_sman * sman, unsigned long owner);
-
-/*
- * Frees all stale memory blocks associated with the memory manager.
- * See idling above.
- */
-
-extern void drm_sman_cleanup(struct drm_sman * sman);
-
-#endif
diff --git a/include/drm/exynos_drm.h b/include/drm/exynos_drm.h
index 12050434d57a..5e120f1c5cd9 100644
--- a/include/drm/exynos_drm.h
+++ b/include/drm/exynos_drm.h
@@ -74,9 +74,16 @@ struct drm_exynos_gem_mmap {
 	uint64_t mapped;
 };
 
+struct drm_exynos_plane_set_zpos {
+	__u32 plane_id;
+	__s32 zpos;
+};
+
 #define DRM_EXYNOS_GEM_CREATE		0x00
 #define DRM_EXYNOS_GEM_MAP_OFFSET	0x01
 #define DRM_EXYNOS_GEM_MMAP		0x02
+/* Reserved 0x03 ~ 0x05 for exynos specific gem ioctl */
+#define DRM_EXYNOS_PLANE_SET_ZPOS	0x06
 
 #define DRM_IOCTL_EXYNOS_GEM_CREATE		DRM_IOWR(DRM_COMMAND_BASE + \
 		DRM_EXYNOS_GEM_CREATE, struct drm_exynos_gem_create)
@@ -87,6 +94,9 @@ struct drm_exynos_gem_mmap {
 #define DRM_IOCTL_EXYNOS_GEM_MMAP	DRM_IOWR(DRM_COMMAND_BASE + \
 		DRM_EXYNOS_GEM_MMAP, struct drm_exynos_gem_mmap)
 
+#define DRM_IOCTL_EXYNOS_PLANE_SET_ZPOS	DRM_IOWR(DRM_COMMAND_BASE + \
+		DRM_EXYNOS_PLANE_SET_ZPOS, struct drm_exynos_plane_set_zpos)
+
 /**
  * Platform Specific Structure for DRM based FIMD.
  *
@@ -102,4 +112,31 @@ struct exynos_drm_fimd_pdata {
 	unsigned int			bpp;
 };
 
+/**
+ * Platform Specific Structure for DRM based HDMI.
+ *
+ * @hdmi_dev: device point to specific hdmi driver.
+ * @mixer_dev: device point to specific mixer driver.
+ *
+ * this structure is used for common hdmi driver and each device object
+ * would be used to access specific device driver(hdmi or mixer driver)
+ */
+struct exynos_drm_common_hdmi_pd {
+	struct device *hdmi_dev;
+	struct device *mixer_dev;
+};
+
+/**
+ * Platform Specific Structure for DRM based HDMI core.
+ *
+ * @timing: default video mode for initializing
+ * @default_win: default window layer number to be used for UI.
+ * @bpp: default bit per pixel.
+ */
+struct exynos_drm_hdmi_pdata {
+	struct fb_videomode		timing;
+	unsigned int			default_win;
+	unsigned int			bpp;
+};
+
 #endif
diff --git a/include/drm/gma_drm.h b/include/drm/gma_drm.h
new file mode 100644
index 000000000000..113686785717
--- /dev/null
+++ b/include/drm/gma_drm.h
@@ -0,0 +1,91 @@
+/**************************************************************************
+ * Copyright (c) 2007-2011, Intel Corporation.
+ * All Rights Reserved.
+ * Copyright (c) 2008, Tungsten Graphics Inc.  Cedar Park, TX., USA.
+ * All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms and conditions of the GNU General Public License,
+ * version 2, as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ **************************************************************************/
+
+#ifndef _PSB_DRM_H_
+#define _PSB_DRM_H_
+
+/*
+ *	Manage the LUT for an output
+ */
+struct drm_psb_dpst_lut_arg {
+	uint8_t lut[256];
+	int output_id;
+};
+
+/*
+ *	Validate modes
+ */
+struct drm_psb_mode_operation_arg {
+	u32 obj_id;
+	u16 operation;
+	struct drm_mode_modeinfo mode;
+	u64 data;
+};
+
+/*
+ *	Query the stolen memory for smarter management of
+ *	memory by the server
+ */
+struct drm_psb_stolen_memory_arg {
+	u32 base;
+	u32 size;
+};
+
+struct drm_psb_get_pipe_from_crtc_id_arg {
+	/** ID of CRTC being requested **/
+	u32 crtc_id;
+	/** pipe of requested CRTC **/
+	u32 pipe;
+};
+
+struct drm_psb_gem_create {
+	__u64 size;
+	__u32 handle;
+	__u32 flags;
+#define GMA_GEM_CREATE_STOLEN		1	/* Stolen memory can be used */
+};
+
+struct drm_psb_gem_mmap {
+	__u32 handle;
+	__u32 pad;
+	/**
+	 * Fake offset to use for subsequent mmap call
+	 *
+	 * This is a fixed-size type for 32/64 compatibility.
+	 */
+	__u64 offset;
+};
+
+/* Controlling the kernel modesetting buffers */
+
+#define DRM_GMA_GEM_CREATE	0x00		/* Create a GEM object */
+#define DRM_GMA_GEM_MMAP	0x01		/* Map GEM memory */
+#define DRM_GMA_STOLEN_MEMORY	0x02		/* Report stolen memory */
+#define DRM_GMA_2D_OP		0x03		/* Will be merged later */
+#define DRM_GMA_GAMMA		0x04		/* Set gamma table */
+#define DRM_GMA_ADB		0x05		/* Get backlight */
+#define DRM_GMA_DPST_BL		0x06		/* Set backlight */
+#define DRM_GMA_GET_PIPE_FROM_CRTC_ID 0x1	/* CRTC to physical pipe# */
+#define DRM_GMA_MODE_OPERATION	0x07		/* Mode validation/DC set */
+#define 	PSB_MODE_OPERATION_MODE_VALID	0x01
+
+
+#endif
diff --git a/include/drm/i915_drm.h b/include/drm/i915_drm.h
index 28c0d114cb52..924f6a454fed 100644
--- a/include/drm/i915_drm.h
+++ b/include/drm/i915_drm.h
@@ -198,6 +198,8 @@ typedef struct _drm_i915_sarea {
 #define DRM_I915_OVERLAY_PUT_IMAGE	0x27
 #define DRM_I915_OVERLAY_ATTRS	0x28
 #define DRM_I915_GEM_EXECBUFFER2	0x29
+#define DRM_I915_GET_SPRITE_COLORKEY	0x2a
+#define DRM_I915_SET_SPRITE_COLORKEY	0x2b
 
 #define DRM_IOCTL_I915_INIT		DRM_IOW( DRM_COMMAND_BASE + DRM_I915_INIT, drm_i915_init_t)
 #define DRM_IOCTL_I915_FLUSH		DRM_IO ( DRM_COMMAND_BASE + DRM_I915_FLUSH)
@@ -239,6 +241,8 @@ typedef struct _drm_i915_sarea {
 #define DRM_IOCTL_I915_GEM_MADVISE	DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_GEM_MADVISE, struct drm_i915_gem_madvise)
 #define DRM_IOCTL_I915_OVERLAY_PUT_IMAGE	DRM_IOW(DRM_COMMAND_BASE + DRM_I915_OVERLAY_PUT_IMAGE, struct drm_intel_overlay_put_image)
 #define DRM_IOCTL_I915_OVERLAY_ATTRS	DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_OVERLAY_ATTRS, struct drm_intel_overlay_attrs)
+#define DRM_IOCTL_I915_SET_SPRITE_COLORKEY DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_SET_SPRITE_COLORKEY, struct drm_intel_sprite_colorkey)
+#define DRM_IOCTL_I915_GET_SPRITE_COLORKEY DRM_IOWR(DRM_COMMAND_BASE + DRM_I915_SET_SPRITE_COLORKEY, struct drm_intel_sprite_colorkey)
 
 /* Allow drivers to submit batchbuffers directly to hardware, relying
  * on the security mechanisms provided by hardware.
@@ -291,6 +295,7 @@ typedef struct drm_i915_irq_wait {
 #define I915_PARAM_HAS_COHERENT_RINGS	 13
 #define I915_PARAM_HAS_EXEC_CONSTANTS	 14
 #define I915_PARAM_HAS_RELAXED_DELTA	 15
+#define I915_PARAM_HAS_GEN7_SOL_RESET	 16
 
 typedef struct drm_i915_getparam {
 	int param;
@@ -653,6 +658,9 @@ struct drm_i915_gem_execbuffer2 {
 	__u64 rsvd2;
 };
 
+/** Resets the SO write offset registers for transform feedback on gen7. */
+#define I915_EXEC_GEN7_SOL_RESET	(1<<8)
+
 struct drm_i915_gem_pin {
 	/** Handle of the buffer to be pinned. */
 	__u32 handle;
@@ -844,4 +852,36 @@ struct drm_intel_overlay_attrs {
 	__u32 gamma5;
 };
 
+/*
+ * Intel sprite handling
+ *
+ * Color keying works with a min/mask/max tuple.  Both source and destination
+ * color keying is allowed.
+ *
+ * Source keying:
+ * Sprite pixels within the min & max values, masked against the color channels
+ * specified in the mask field, will be transparent.  All other pixels will
+ * be displayed on top of the primary plane.  For RGB surfaces, only the min
+ * and mask fields will be used; ranged compares are not allowed.
+ *
+ * Destination keying:
+ * Primary plane pixels that match the min value, masked against the color
+ * channels specified in the mask field, will be replaced by corresponding
+ * pixels from the sprite plane.
+ *
+ * Note that source & destination keying are exclusive; only one can be
+ * active on a given plane.
+ */
+
+#define I915_SET_COLORKEY_NONE		(1<<0) /* disable color key matching */
+#define I915_SET_COLORKEY_DESTINATION	(1<<1)
+#define I915_SET_COLORKEY_SOURCE	(1<<2)
+struct drm_intel_sprite_colorkey {
+	__u32 plane_id;
+	__u32 min_value;
+	__u32 channel_mask;
+	__u32 max_value;
+	__u32 flags;
+};
+
 #endif				/* _I915_DRM_H_ */
diff --git a/include/drm/radeon_drm.h b/include/drm/radeon_drm.h
index be94be6d6f17..b55da40953fd 100644
--- a/include/drm/radeon_drm.h
+++ b/include/drm/radeon_drm.h
@@ -509,6 +509,7 @@ typedef struct {
 #define DRM_RADEON_GEM_SET_TILING	0x28
 #define DRM_RADEON_GEM_GET_TILING	0x29
 #define DRM_RADEON_GEM_BUSY		0x2a
+#define DRM_RADEON_GEM_VA		0x2b
 
 #define DRM_IOCTL_RADEON_CP_INIT    DRM_IOW( DRM_COMMAND_BASE + DRM_RADEON_CP_INIT, drm_radeon_init_t)
 #define DRM_IOCTL_RADEON_CP_START   DRM_IO(  DRM_COMMAND_BASE + DRM_RADEON_CP_START)
@@ -550,6 +551,7 @@ typedef struct {
 #define DRM_IOCTL_RADEON_GEM_SET_TILING	DRM_IOWR(DRM_COMMAND_BASE + DRM_RADEON_GEM_SET_TILING, struct drm_radeon_gem_set_tiling)
 #define DRM_IOCTL_RADEON_GEM_GET_TILING	DRM_IOWR(DRM_COMMAND_BASE + DRM_RADEON_GEM_GET_TILING, struct drm_radeon_gem_get_tiling)
 #define DRM_IOCTL_RADEON_GEM_BUSY	DRM_IOWR(DRM_COMMAND_BASE + DRM_RADEON_GEM_BUSY, struct drm_radeon_gem_busy)
+#define DRM_IOCTL_RADEON_GEM_VA		DRM_IOWR(DRM_COMMAND_BASE + DRM_RADEON_GEM_VA, struct drm_radeon_gem_va)
 
 typedef struct drm_radeon_init {
 	enum {
@@ -872,12 +874,39 @@ struct drm_radeon_gem_pwrite {
 	uint64_t data_ptr;
 };
 
+#define RADEON_VA_MAP			1
+#define RADEON_VA_UNMAP			2
+
+#define RADEON_VA_RESULT_OK		0
+#define RADEON_VA_RESULT_ERROR		1
+#define RADEON_VA_RESULT_VA_EXIST	2
+
+#define RADEON_VM_PAGE_VALID		(1 << 0)
+#define RADEON_VM_PAGE_READABLE		(1 << 1)
+#define RADEON_VM_PAGE_WRITEABLE	(1 << 2)
+#define RADEON_VM_PAGE_SYSTEM		(1 << 3)
+#define RADEON_VM_PAGE_SNOOPED		(1 << 4)
+
+struct drm_radeon_gem_va {
+	uint32_t		handle;
+	uint32_t		operation;
+	uint32_t		vm_id;
+	uint32_t		flags;
+	uint64_t		offset;
+};
+
 #define RADEON_CHUNK_ID_RELOCS	0x01
 #define RADEON_CHUNK_ID_IB	0x02
 #define RADEON_CHUNK_ID_FLAGS	0x03
 
 /* The first dword of RADEON_CHUNK_ID_FLAGS is a uint32 of these flags: */
 #define RADEON_CS_KEEP_TILING_FLAGS 0x01
+#define RADEON_CS_USE_VM            0x02
+/* The second dword of RADEON_CHUNK_ID_FLAGS is a uint32 that sets the ring type */
+#define RADEON_CS_RING_GFX          0
+#define RADEON_CS_RING_COMPUTE      1
+/* The third dword of RADEON_CHUNK_ID_FLAGS is a sint32 that sets the priority */
+/* 0 = normal, + = higher priority, - = lower priority */
 
 struct drm_radeon_cs_chunk {
 	uint32_t		chunk_id;
@@ -885,6 +914,9 @@ struct drm_radeon_cs_chunk {
 	uint64_t		chunk_data;
 };
 
+/* drm_radeon_cs_reloc.flags */
+#define RADEON_RELOC_DONT_SYNC		0x01
+
 struct drm_radeon_cs_reloc {
 	uint32_t		handle;
 	uint32_t		read_domains;
@@ -916,6 +948,10 @@ struct drm_radeon_cs {
 #define RADEON_INFO_NUM_TILE_PIPES	0x0b /* tile pipes for r600+ */
 #define RADEON_INFO_FUSION_GART_WORKING	0x0c /* fusion writes to GTT were broken before this */
 #define RADEON_INFO_BACKEND_MAP		0x0d /* pipe to backend map, needed by mesa */
+/* virtual address start, va < start are reserved by the kernel */
+#define RADEON_INFO_VA_START		0x0e
+/* maximum size of ib using the virtual memory cs */
+#define RADEON_INFO_IB_VM_MAX_SIZE	0x0f
 
 struct drm_radeon_info {
 	uint32_t		request;
diff --git a/include/drm/sis_drm.h b/include/drm/sis_drm.h
index 30f7b3827466..035b804dda6d 100644
--- a/include/drm/sis_drm.h
+++ b/include/drm/sis_drm.h
@@ -64,4 +64,8 @@ typedef struct {
 	unsigned int offset, size;
 } drm_sis_fb_t;
 
+struct sis_file_private {
+	struct list_head obj_list;
+};
+
 #endif				/* __SIS_DRM_H__ */
diff --git a/include/drm/ttm/ttm_bo_api.h b/include/drm/ttm/ttm_bo_api.h
index 42e346985186..974c8f801c39 100644
--- a/include/drm/ttm/ttm_bo_api.h
+++ b/include/drm/ttm/ttm_bo_api.h
@@ -122,17 +122,12 @@ struct ttm_mem_reg {
  * be mmapped by user space. Each of these bos occupy a slot in the
  * device address space, that can be used for normal vm operations.
  *
- * @ttm_bo_type_user: These are user-space memory areas that are made
- * available to the GPU by mapping the buffer pages into the GPU aperture
- * space. These buffers cannot be mmaped from the device address space.
- *
  * @ttm_bo_type_kernel: These buffers are like ttm_bo_type_device buffers,
  * but they cannot be accessed from user-space. For kernel-only use.
  */
 
 enum ttm_bo_type {
 	ttm_bo_type_device,
-	ttm_bo_type_user,
 	ttm_bo_type_kernel
 };
 
@@ -434,9 +429,9 @@ extern void ttm_bo_unlock_delayed_workqueue(struct ttm_bo_device *bdev,
  * -EBUSY if the buffer is busy and no_wait is true.
  * -ERESTARTSYS if interrupted by a signal.
  */
-
 extern int
 ttm_bo_synccpu_write_grab(struct ttm_buffer_object *bo, bool no_wait);
+
 /**
  * ttm_bo_synccpu_write_release:
  *
@@ -447,6 +442,22 @@ ttm_bo_synccpu_write_grab(struct ttm_buffer_object *bo, bool no_wait);
 extern void ttm_bo_synccpu_write_release(struct ttm_buffer_object *bo);
 
 /**
+ * ttm_bo_acc_size
+ *
+ * @bdev: Pointer to a ttm_bo_device struct.
+ * @bo_size: size of the buffer object in byte.
+ * @struct_size: size of the structure holding buffer object datas
+ *
+ * Returns size to account for a buffer object
+ */
+size_t ttm_bo_acc_size(struct ttm_bo_device *bdev,
+		       unsigned long bo_size,
+		       unsigned struct_size);
+size_t ttm_bo_dma_acc_size(struct ttm_bo_device *bdev,
+			   unsigned long bo_size,
+			   unsigned struct_size);
+
+/**
  * ttm_bo_init
  *
  * @bdev: Pointer to a ttm_bo_device struct.
@@ -493,6 +504,7 @@ extern int ttm_bo_init(struct ttm_bo_device *bdev,
 			struct file *persistent_swap_storage,
 			size_t acc_size,
 			void (*destroy) (struct ttm_buffer_object *));
+
 /**
  * ttm_bo_synccpu_object_init
  *
diff --git a/include/drm/ttm/ttm_bo_driver.h b/include/drm/ttm/ttm_bo_driver.h
index 94eb1434316e..d43e892307ff 100644
--- a/include/drm/ttm/ttm_bo_driver.h
+++ b/include/drm/ttm/ttm_bo_driver.h
@@ -43,36 +43,9 @@ struct ttm_backend;
 
 struct ttm_backend_func {
 	/**
-	 * struct ttm_backend_func member populate
-	 *
-	 * @backend: Pointer to a struct ttm_backend.
-	 * @num_pages: Number of pages to populate.
-	 * @pages: Array of pointers to ttm pages.
-	 * @dummy_read_page: Page to be used instead of NULL pages in the
-	 * array @pages.
-	 * @dma_addrs: Array of DMA (bus) address of the ttm pages.
-	 *
-	 * Populate the backend with ttm pages. Depending on the backend,
-	 * it may or may not copy the @pages array.
-	 */
-	int (*populate) (struct ttm_backend *backend,
-			 unsigned long num_pages, struct page **pages,
-			 struct page *dummy_read_page,
-			 dma_addr_t *dma_addrs);
-	/**
-	 * struct ttm_backend_func member clear
-	 *
-	 * @backend: Pointer to a struct ttm_backend.
-	 *
-	 * This is an "unpopulate" function. Release all resources
-	 * allocated with populate.
-	 */
-	void (*clear) (struct ttm_backend *backend);
-
-	/**
 	 * struct ttm_backend_func member bind
 	 *
-	 * @backend: Pointer to a struct ttm_backend.
+	 * @ttm: Pointer to a struct ttm_tt.
 	 * @bo_mem: Pointer to a struct ttm_mem_reg describing the
 	 * memory type and location for binding.
 	 *
@@ -80,46 +53,29 @@ struct ttm_backend_func {
 	 * indicated by @bo_mem. This function should be able to handle
 	 * differences between aperture and system page sizes.
 	 */
-	int (*bind) (struct ttm_backend *backend, struct ttm_mem_reg *bo_mem);
+	int (*bind) (struct ttm_tt *ttm, struct ttm_mem_reg *bo_mem);
 
 	/**
 	 * struct ttm_backend_func member unbind
 	 *
-	 * @backend: Pointer to a struct ttm_backend.
+	 * @ttm: Pointer to a struct ttm_tt.
 	 *
 	 * Unbind previously bound backend pages. This function should be
 	 * able to handle differences between aperture and system page sizes.
 	 */
-	int (*unbind) (struct ttm_backend *backend);
+	int (*unbind) (struct ttm_tt *ttm);
 
 	/**
 	 * struct ttm_backend_func member destroy
 	 *
-	 * @backend: Pointer to a struct ttm_backend.
+	 * @ttm: Pointer to a struct ttm_tt.
 	 *
-	 * Destroy the backend.
+	 * Destroy the backend. This will be call back from ttm_tt_destroy so
+	 * don't call ttm_tt_destroy from the callback or infinite loop.
 	 */
-	void (*destroy) (struct ttm_backend *backend);
-};
-
-/**
- * struct ttm_backend
- *
- * @bdev: Pointer to a struct ttm_bo_device.
- * @flags: For driver use.
- * @func: Pointer to a struct ttm_backend_func that describes
- * the backend methods.
- *
- */
-
-struct ttm_backend {
-	struct ttm_bo_device *bdev;
-	uint32_t flags;
-	struct ttm_backend_func *func;
+	void (*destroy) (struct ttm_tt *ttm);
 };
 
-#define TTM_PAGE_FLAG_USER            (1 << 1)
-#define TTM_PAGE_FLAG_USER_DIRTY      (1 << 2)
 #define TTM_PAGE_FLAG_WRITE           (1 << 3)
 #define TTM_PAGE_FLAG_SWAPPED         (1 << 4)
 #define TTM_PAGE_FLAG_PERSISTENT_SWAP (1 << 5)
@@ -135,23 +91,18 @@ enum ttm_caching_state {
 /**
  * struct ttm_tt
  *
+ * @bdev: Pointer to a struct ttm_bo_device.
+ * @func: Pointer to a struct ttm_backend_func that describes
+ * the backend methods.
  * @dummy_read_page: Page to map where the ttm_tt page array contains a NULL
  * pointer.
  * @pages: Array of pages backing the data.
- * @first_himem_page: Himem pages are put last in the page array, which
- * enables us to run caching attribute changes on only the first part
- * of the page array containing lomem pages. This is the index of the
- * first himem page.
- * @last_lomem_page: Index of the last lomem page in the page array.
  * @num_pages: Number of pages in the page array.
  * @bdev: Pointer to the current struct ttm_bo_device.
  * @be: Pointer to the ttm backend.
- * @tsk: The task for user ttm.
- * @start: virtual address for user ttm.
  * @swap_storage: Pointer to shmem struct file for swap storage.
  * @caching_state: The current caching state of the pages.
  * @state: The current binding state of the pages.
- * @dma_address: The DMA (bus) addresses of the pages (if TTM_PAGE_FLAG_DMA32)
  *
  * This is a structure holding the pages, caching- and aperture binding
  * status for a buffer object that isn't backed by fixed (VRAM / AGP)
@@ -159,16 +110,14 @@ enum ttm_caching_state {
  */
 
 struct ttm_tt {
+	struct ttm_bo_device *bdev;
+	struct ttm_backend_func *func;
 	struct page *dummy_read_page;
 	struct page **pages;
-	long first_himem_page;
-	long last_lomem_page;
 	uint32_t page_flags;
 	unsigned long num_pages;
 	struct ttm_bo_global *glob;
 	struct ttm_backend *be;
-	struct task_struct *tsk;
-	unsigned long start;
 	struct file *swap_storage;
 	enum ttm_caching_state caching_state;
 	enum {
@@ -176,7 +125,23 @@ struct ttm_tt {
 		tt_unbound,
 		tt_unpopulated,
 	} state;
+};
+
+/**
+ * struct ttm_dma_tt
+ *
+ * @ttm: Base ttm_tt struct.
+ * @dma_address: The DMA (bus) addresses of the pages
+ * @pages_list: used by some page allocation backend
+ *
+ * This is a structure holding the pages, caching- and aperture binding
+ * status for a buffer object that isn't backed by fixed (VRAM / AGP)
+ * memory.
+ */
+struct ttm_dma_tt {
+	struct ttm_tt ttm;
 	dma_addr_t *dma_address;
+	struct list_head pages_list;
 };
 
 #define TTM_MEMTYPE_FLAG_FIXED         (1 << 0)	/* Fixed (on-card) PCI memory */
@@ -351,15 +316,42 @@ struct ttm_mem_type_manager {
 
 struct ttm_bo_driver {
 	/**
-	 * struct ttm_bo_driver member create_ttm_backend_entry
+	 * ttm_tt_create
 	 *
-	 * @bdev: The buffer object device.
+	 * @bdev: pointer to a struct ttm_bo_device:
+	 * @size: Size of the data needed backing.
+	 * @page_flags: Page flags as identified by TTM_PAGE_FLAG_XX flags.
+	 * @dummy_read_page: See struct ttm_bo_device.
 	 *
-	 * Create a driver specific struct ttm_backend.
+	 * Create a struct ttm_tt to back data with system memory pages.
+	 * No pages are actually allocated.
+	 * Returns:
+	 * NULL: Out of memory.
 	 */
+	struct ttm_tt *(*ttm_tt_create)(struct ttm_bo_device *bdev,
+					unsigned long size,
+					uint32_t page_flags,
+					struct page *dummy_read_page);
 
-	struct ttm_backend *(*create_ttm_backend_entry)
-	 (struct ttm_bo_device *bdev);
+	/**
+	 * ttm_tt_populate
+	 *
+	 * @ttm: The struct ttm_tt to contain the backing pages.
+	 *
+	 * Allocate all backing pages
+	 * Returns:
+	 * -ENOMEM: Out of memory.
+	 */
+	int (*ttm_tt_populate)(struct ttm_tt *ttm);
+
+	/**
+	 * ttm_tt_unpopulate
+	 *
+	 * @ttm: The struct ttm_tt to contain the backing pages.
+	 *
+	 * Free all backing page
+	 */
+	void (*ttm_tt_unpopulate)(struct ttm_tt *ttm);
 
 	/**
 	 * struct ttm_bo_driver member invalidate_caches
@@ -477,9 +469,6 @@ struct ttm_bo_global_ref {
  * @dummy_read_page: Pointer to a dummy page used for mapping requests
  * of unpopulated pages.
  * @shrink: A shrink callback object used for buffer object swap.
- * @ttm_bo_extra_size: Extra size (sizeof(struct ttm_buffer_object) excluded)
- * used by a buffer object. This is excluding page arrays and backing pages.
- * @ttm_bo_size: This is @ttm_bo_extra_size + sizeof(struct ttm_buffer_object).
  * @device_list_mutex: Mutex protecting the device list.
  * This mutex is held while traversing the device list for pm options.
  * @lru_lock: Spinlock protecting the bo subsystem lru lists.
@@ -497,8 +486,6 @@ struct ttm_bo_global {
 	struct ttm_mem_global *mem_glob;
 	struct page *dummy_read_page;
 	struct ttm_mem_shrink shrink;
-	size_t ttm_bo_extra_size;
-	size_t ttm_bo_size;
 	struct mutex device_list_mutex;
 	spinlock_t lru_lock;
 
@@ -600,8 +587,9 @@ ttm_flag_masked(uint32_t *old, uint32_t new, uint32_t mask)
 }
 
 /**
- * ttm_tt_create
+ * ttm_tt_init
  *
+ * @ttm: The struct ttm_tt.
  * @bdev: pointer to a struct ttm_bo_device:
  * @size: Size of the data needed backing.
  * @page_flags: Page flags as identified by TTM_PAGE_FLAG_XX flags.
@@ -612,28 +600,22 @@ ttm_flag_masked(uint32_t *old, uint32_t new, uint32_t mask)
  * Returns:
  * NULL: Out of memory.
  */
-extern struct ttm_tt *ttm_tt_create(struct ttm_bo_device *bdev,
-				    unsigned long size,
-				    uint32_t page_flags,
-				    struct page *dummy_read_page);
+extern int ttm_tt_init(struct ttm_tt *ttm, struct ttm_bo_device *bdev,
+			unsigned long size, uint32_t page_flags,
+			struct page *dummy_read_page);
+extern int ttm_dma_tt_init(struct ttm_dma_tt *ttm_dma, struct ttm_bo_device *bdev,
+			   unsigned long size, uint32_t page_flags,
+			   struct page *dummy_read_page);
 
 /**
- * ttm_tt_set_user:
+ * ttm_tt_fini
  *
- * @ttm: The struct ttm_tt to populate.
- * @tsk: A struct task_struct for which @start is a valid user-space address.
- * @start: A valid user-space address.
- * @num_pages: Size in pages of the user memory area.
+ * @ttm: the ttm_tt structure.
  *
- * Populate a struct ttm_tt with a user-space memory area after first pinning
- * the pages backing it.
- * Returns:
- * !0: Error.
+ * Free memory of ttm_tt structure
  */
-
-extern int ttm_tt_set_user(struct ttm_tt *ttm,
-			   struct task_struct *tsk,
-			   unsigned long start, unsigned long num_pages);
+extern void ttm_tt_fini(struct ttm_tt *ttm);
+extern void ttm_dma_tt_fini(struct ttm_dma_tt *ttm_dma);
 
 /**
  * ttm_ttm_bind:
@@ -646,20 +628,11 @@ extern int ttm_tt_set_user(struct ttm_tt *ttm,
 extern int ttm_tt_bind(struct ttm_tt *ttm, struct ttm_mem_reg *bo_mem);
 
 /**
- * ttm_tt_populate:
- *
- * @ttm: The struct ttm_tt to contain the backing pages.
- *
- * Add backing pages to all of @ttm
- */
-extern int ttm_tt_populate(struct ttm_tt *ttm);
-
-/**
  * ttm_ttm_destroy:
  *
  * @ttm: The struct ttm_tt.
  *
- * Unbind, unpopulate and destroy a struct ttm_tt.
+ * Unbind, unpopulate and destroy common struct ttm_tt.
  */
 extern void ttm_tt_destroy(struct ttm_tt *ttm);
 
@@ -673,19 +646,13 @@ extern void ttm_tt_destroy(struct ttm_tt *ttm);
 extern void ttm_tt_unbind(struct ttm_tt *ttm);
 
 /**
- * ttm_ttm_destroy:
+ * ttm_tt_swapin:
  *
  * @ttm: The struct ttm_tt.
- * @index: Index of the desired page.
- *
- * Return a pointer to the struct page backing @ttm at page
- * index @index. If the page is unpopulated, one will be allocated to
- * populate that index.
  *
- * Returns:
- * NULL on OOM.
+ * Swap in a previously swap out ttm_tt.
  */
-extern struct page *ttm_tt_get_page(struct ttm_tt *ttm, int index);
+extern int ttm_tt_swapin(struct ttm_tt *ttm);
 
 /**
  * ttm_tt_cache_flush:
@@ -1046,17 +1013,25 @@ extern const struct ttm_mem_type_manager_func ttm_bo_manager_func;
 #include <linux/agp_backend.h>
 
 /**
- * ttm_agp_backend_init
+ * ttm_agp_tt_create
  *
  * @bdev: Pointer to a struct ttm_bo_device.
  * @bridge: The agp bridge this device is sitting on.
+ * @size: Size of the data needed backing.
+ * @page_flags: Page flags as identified by TTM_PAGE_FLAG_XX flags.
+ * @dummy_read_page: See struct ttm_bo_device.
+ *
  *
  * Create a TTM backend that uses the indicated AGP bridge as an aperture
  * for TT memory. This function uses the linux agpgart interface to
  * bind and unbind memory backing a ttm_tt.
  */
-extern struct ttm_backend *ttm_agp_backend_init(struct ttm_bo_device *bdev,
-						struct agp_bridge_data *bridge);
+extern struct ttm_tt *ttm_agp_tt_create(struct ttm_bo_device *bdev,
+					struct agp_bridge_data *bridge,
+					unsigned long size, uint32_t page_flags,
+					struct page *dummy_read_page);
+int ttm_agp_tt_populate(struct ttm_tt *ttm);
+void ttm_agp_tt_unpopulate(struct ttm_tt *ttm);
 #endif
 
 #endif
diff --git a/include/drm/ttm/ttm_page_alloc.h b/include/drm/ttm/ttm_page_alloc.h
index 129de12353f1..5fe27400d176 100644
--- a/include/drm/ttm/ttm_page_alloc.h
+++ b/include/drm/ttm/ttm_page_alloc.h
@@ -30,45 +30,70 @@
 #include "ttm_memory.h"
 
 /**
- * Get count number of pages from pool to pages list.
+ * Initialize pool allocator.
+ */
+int ttm_page_alloc_init(struct ttm_mem_global *glob, unsigned max_pages);
+/**
+ * Free pool allocator.
+ */
+void ttm_page_alloc_fini(void);
+
+/**
+ * ttm_pool_populate:
+ *
+ * @ttm: The struct ttm_tt to contain the backing pages.
  *
- * @pages: head of empty linked list where pages are filled.
- * @flags: ttm flags for page allocation.
- * @cstate: ttm caching state for the page.
- * @count: number of pages to allocate.
- * @dma_address: The DMA (bus) address of pages (if TTM_PAGE_FLAG_DMA32 set).
+ * Add backing pages to all of @ttm
  */
-int ttm_get_pages(struct list_head *pages,
-		  int flags,
-		  enum ttm_caching_state cstate,
-		  unsigned count,
-		  dma_addr_t *dma_address);
+extern int ttm_pool_populate(struct ttm_tt *ttm);
+
 /**
- * Put linked list of pages to pool.
+ * ttm_pool_unpopulate:
+ *
+ * @ttm: The struct ttm_tt which to free backing pages.
  *
- * @pages: list of pages to free.
- * @page_count: number of pages in the list. Zero can be passed for unknown
- * count.
- * @flags: ttm flags for page allocation.
- * @cstate: ttm caching state.
- * @dma_address: The DMA (bus) address of pages (if TTM_PAGE_FLAG_DMA32 set).
+ * Free all pages of @ttm
  */
-void ttm_put_pages(struct list_head *pages,
-		   unsigned page_count,
-		   int flags,
-		   enum ttm_caching_state cstate,
-		   dma_addr_t *dma_address);
+extern void ttm_pool_unpopulate(struct ttm_tt *ttm);
+
+/**
+ * Output the state of pools to debugfs file
+ */
+extern int ttm_page_alloc_debugfs(struct seq_file *m, void *data);
+
+
+#ifdef CONFIG_SWIOTLB
 /**
  * Initialize pool allocator.
  */
-int ttm_page_alloc_init(struct ttm_mem_global *glob, unsigned max_pages);
+int ttm_dma_page_alloc_init(struct ttm_mem_global *glob, unsigned max_pages);
+
 /**
  * Free pool allocator.
  */
-void ttm_page_alloc_fini(void);
+void ttm_dma_page_alloc_fini(void);
 
 /**
  * Output the state of pools to debugfs file
  */
-extern int ttm_page_alloc_debugfs(struct seq_file *m, void *data);
+extern int ttm_dma_page_alloc_debugfs(struct seq_file *m, void *data);
+
+extern int ttm_dma_populate(struct ttm_dma_tt *ttm_dma, struct device *dev);
+extern void ttm_dma_unpopulate(struct ttm_dma_tt *ttm_dma, struct device *dev);
+
+#else
+static inline int ttm_dma_page_alloc_init(struct ttm_mem_global *glob,
+					  unsigned max_pages)
+{
+	return -ENODEV;
+}
+
+static inline void ttm_dma_page_alloc_fini(void) { return; }
+
+static inline int ttm_dma_page_alloc_debugfs(struct seq_file *m, void *data)
+{
+	return 0;
+}
+#endif
+
 #endif
diff --git a/include/drm/via_drm.h b/include/drm/via_drm.h
index fd11a5bd892d..79b3b6e0f6b3 100644
--- a/include/drm/via_drm.h
+++ b/include/drm/via_drm.h
@@ -274,4 +274,8 @@ typedef struct drm_via_dmablit {
 	drm_via_blitsync_t sync;
 } drm_via_dmablit_t;
 
+struct via_file_private {
+	struct list_head obj_list;
+};
+
 #endif				/* _VIA_DRM_H_ */
diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index 6001b4da39dd..627a3a42e4d8 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -302,6 +302,10 @@ extern bool osc_sb_apei_support_acked;
 				OSC_PCI_EXPRESS_PME_CONTROL |		\
 				OSC_PCI_EXPRESS_AER_CONTROL |		\
 				OSC_PCI_EXPRESS_CAP_STRUCTURE_CONTROL)
+
+#define OSC_PCI_NATIVE_HOTPLUG	(OSC_PCI_EXPRESS_NATIVE_HP_CONTROL |	\
+				OSC_SHPC_NATIVE_HP_CONTROL)
+
 extern acpi_status acpi_pci_osc_control_set(acpi_handle handle,
 					     u32 *mask, u32 req);
 extern void acpi_early_init(void);
diff --git a/include/linux/ahci_platform.h b/include/linux/ahci_platform.h
index be3d9a77d6ed..73a25005d88a 100644
--- a/include/linux/ahci_platform.h
+++ b/include/linux/ahci_platform.h
@@ -23,6 +23,8 @@ struct ata_port_info;
 struct ahci_platform_data {
 	int (*init)(struct device *dev, void __iomem *addr);
 	void (*exit)(struct device *dev);
+	int (*suspend)(struct device *dev);
+	int (*resume)(struct device *dev);
 	const struct ata_port_info *ata_port_info;
 	unsigned int force_port_map;
 	unsigned int mask_port_map;
diff --git a/include/linux/amba/pl330.h b/include/linux/amba/pl330.h
index d12f077a6daf..12e023c19ac1 100644
--- a/include/linux/amba/pl330.h
+++ b/include/linux/amba/pl330.h
@@ -12,17 +12,9 @@
 #ifndef	__AMBA_PL330_H_
 #define	__AMBA_PL330_H_
 
+#include <linux/dmaengine.h>
 #include <asm/hardware/pl330.h>
 
-struct dma_pl330_peri {
-	/*
-	 * Peri_Req i/f of the DMAC that is
-	 * peripheral could be reached from.
-	 */
-	u8 peri_id; /* specific dma id */
-	enum pl330_reqtype rqtype;
-};
-
 struct dma_pl330_platdata {
 	/*
 	 * Number of valid peripherals connected to DMAC.
@@ -33,9 +25,12 @@ struct dma_pl330_platdata {
 	 */
 	u8 nr_valid_peri;
 	/* Array of valid peripherals */
-	struct dma_pl330_peri *peri;
+	u8 *peri_id;
+	/* Operational capabilities */
+	dma_cap_mask_t cap_mask;
 	/* Bytes to allocate for MC buffer */
 	unsigned mcbuf_sz;
 };
 
+extern bool pl330_filter(struct dma_chan *chan, void *param);
 #endif	/* __AMBA_PL330_H_ */
diff --git a/include/linux/amd-iommu.h b/include/linux/amd-iommu.h
index a6863a2dec1f..ef00610837d4 100644
--- a/include/linux/amd-iommu.h
+++ b/include/linux/amd-iommu.h
@@ -20,12 +20,148 @@
 #ifndef _ASM_X86_AMD_IOMMU_H
 #define _ASM_X86_AMD_IOMMU_H
 
-#include <linux/irqreturn.h>
+#include <linux/types.h>
 
 #ifdef CONFIG_AMD_IOMMU
 
+struct task_struct;
+struct pci_dev;
+
 extern int amd_iommu_detect(void);
 
+
+/**
+ * amd_iommu_enable_device_erratum() - Enable erratum workaround for device
+ *				       in the IOMMUv2 driver
+ * @pdev: The PCI device the workaround is necessary for
+ * @erratum: The erratum workaround to enable
+ *
+ * The function needs to be called before amd_iommu_init_device().
+ * Possible values for the erratum number are for now:
+ * - AMD_PRI_DEV_ERRATUM_ENABLE_RESET - Reset PRI capability when PRI
+ *					is enabled
+ * - AMD_PRI_DEV_ERRATUM_LIMIT_REQ_ONE - Limit number of outstanding PRI
+ *					 requests to one
+ */
+#define AMD_PRI_DEV_ERRATUM_ENABLE_RESET		0
+#define AMD_PRI_DEV_ERRATUM_LIMIT_REQ_ONE		1
+
+extern void amd_iommu_enable_device_erratum(struct pci_dev *pdev, u32 erratum);
+
+/**
+ * amd_iommu_init_device() - Init device for use with IOMMUv2 driver
+ * @pdev: The PCI device to initialize
+ * @pasids: Number of PASIDs to support for this device
+ *
+ * This function does all setup for the device pdev so that it can be
+ * used with IOMMUv2.
+ * Returns 0 on success or negative value on error.
+ */
+extern int amd_iommu_init_device(struct pci_dev *pdev, int pasids);
+
+/**
+ * amd_iommu_free_device() - Free all IOMMUv2 related device resources
+ *			     and disable IOMMUv2 usage for this device
+ * @pdev: The PCI device to disable IOMMUv2 usage for'
+ */
+extern void amd_iommu_free_device(struct pci_dev *pdev);
+
+/**
+ * amd_iommu_bind_pasid() - Bind a given task to a PASID on a device
+ * @pdev: The PCI device to bind the task to
+ * @pasid: The PASID on the device the task should be bound to
+ * @task: the task to bind
+ *
+ * The function returns 0 on success or a negative value on error.
+ */
+extern int amd_iommu_bind_pasid(struct pci_dev *pdev, int pasid,
+				struct task_struct *task);
+
+/**
+ * amd_iommu_unbind_pasid() - Unbind a PASID from its task on
+ *			      a device
+ * @pdev: The device of the PASID
+ * @pasid: The PASID to unbind
+ *
+ * When this function returns the device is no longer using the PASID
+ * and the PASID is no longer bound to its task.
+ */
+extern void amd_iommu_unbind_pasid(struct pci_dev *pdev, int pasid);
+
+/**
+ * amd_iommu_set_invalid_ppr_cb() - Register a call-back for failed
+ *				    PRI requests
+ * @pdev: The PCI device the call-back should be registered for
+ * @cb: The call-back function
+ *
+ * The IOMMUv2 driver invokes this call-back when it is unable to
+ * successfully handle a PRI request. The device driver can then decide
+ * which PRI response the device should see. Possible return values for
+ * the call-back are:
+ *
+ * - AMD_IOMMU_INV_PRI_RSP_SUCCESS - Send SUCCESS back to the device
+ * - AMD_IOMMU_INV_PRI_RSP_INVALID - Send INVALID back to the device
+ * - AMD_IOMMU_INV_PRI_RSP_FAIL    - Send Failure back to the device,
+ *				     the device is required to disable
+ *				     PRI when it receives this response
+ *
+ * The function returns 0 on success or negative value on error.
+ */
+#define AMD_IOMMU_INV_PRI_RSP_SUCCESS	0
+#define AMD_IOMMU_INV_PRI_RSP_INVALID	1
+#define AMD_IOMMU_INV_PRI_RSP_FAIL	2
+
+typedef int (*amd_iommu_invalid_ppr_cb)(struct pci_dev *pdev,
+					int pasid,
+					unsigned long address,
+					u16);
+
+extern int amd_iommu_set_invalid_ppr_cb(struct pci_dev *pdev,
+					amd_iommu_invalid_ppr_cb cb);
+
+/**
+ * amd_iommu_device_info() - Get information about IOMMUv2 support of a
+ *			     PCI device
+ * @pdev: PCI device to query information from
+ * @info: A pointer to an amd_iommu_device_info structure which will contain
+ *	  the information about the PCI device
+ *
+ * Returns 0 on success, negative value on error
+ */
+
+#define AMD_IOMMU_DEVICE_FLAG_ATS_SUP     0x1    /* ATS feature supported */
+#define AMD_IOMMU_DEVICE_FLAG_PRI_SUP     0x2    /* PRI feature supported */
+#define AMD_IOMMU_DEVICE_FLAG_PASID_SUP   0x4    /* PASID context supported */
+#define AMD_IOMMU_DEVICE_FLAG_EXEC_SUP    0x8    /* Device may request execution
+						    on memory pages */
+#define AMD_IOMMU_DEVICE_FLAG_PRIV_SUP   0x10    /* Device may request
+						    super-user privileges */
+
+struct amd_iommu_device_info {
+	int max_pasids;
+	u32 flags;
+};
+
+extern int amd_iommu_device_info(struct pci_dev *pdev,
+				 struct amd_iommu_device_info *info);
+
+/**
+ * amd_iommu_set_invalidate_ctx_cb() - Register a call-back for invalidating
+ *				       a pasid context. This call-back is
+ *				       invoked when the IOMMUv2 driver needs to
+ *				       invalidate a PASID context, for example
+ *				       because the task that is bound to that
+ *				       context is about to exit.
+ *
+ * @pdev: The PCI device the call-back should be registered for
+ * @cb: The call-back function
+ */
+
+typedef void (*amd_iommu_invalidate_ctx)(struct pci_dev *pdev, int pasid);
+
+extern int amd_iommu_set_invalidate_ctx_cb(struct pci_dev *pdev,
+					   amd_iommu_invalidate_ctx cb);
+
 #else
 
 static inline int amd_iommu_detect(void) { return -ENODEV; }
diff --git a/include/linux/ata_platform.h b/include/linux/ata_platform.h
index 9a26c83a2c9e..b856a2a590d9 100644
--- a/include/linux/ata_platform.h
+++ b/include/linux/ata_platform.h
@@ -27,10 +27,7 @@ extern int __devexit __pata_platform_remove(struct device *dev);
 /*
  * Marvell SATA private data
  */
-struct mbus_dram_target_info;
-
 struct mv_sata_platform_data {
-	struct mbus_dram_target_info	*dram;
 	int	n_ports; /* number of sata ports */
 };
 
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index a17becc36ca1..e9b602151caf 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -457,6 +457,28 @@ void cgroup_exclude_rmdir(struct cgroup_subsys_state *css);
 void cgroup_release_and_wakeup_rmdir(struct cgroup_subsys_state *css);
 
 /*
+ * Control Group taskset, used to pass around set of tasks to cgroup_subsys
+ * methods.
+ */
+struct cgroup_taskset;
+struct task_struct *cgroup_taskset_first(struct cgroup_taskset *tset);
+struct task_struct *cgroup_taskset_next(struct cgroup_taskset *tset);
+struct cgroup *cgroup_taskset_cur_cgroup(struct cgroup_taskset *tset);
+int cgroup_taskset_size(struct cgroup_taskset *tset);
+
+/**
+ * cgroup_taskset_for_each - iterate cgroup_taskset
+ * @task: the loop cursor
+ * @skip_cgrp: skip if task's cgroup matches this, %NULL to iterate through all
+ * @tset: taskset to iterate
+ */
+#define cgroup_taskset_for_each(task, skip_cgrp, tset)			\
+	for ((task) = cgroup_taskset_first((tset)); (task);		\
+	     (task) = cgroup_taskset_next((tset)))			\
+		if (!(skip_cgrp) ||					\
+		    cgroup_taskset_cur_cgroup((tset)) != (skip_cgrp))
+
+/*
  * Control Group subsystem type.
  * See Documentation/cgroups/cgroups.txt for details
  */
@@ -467,14 +489,11 @@ struct cgroup_subsys {
 	int (*pre_destroy)(struct cgroup_subsys *ss, struct cgroup *cgrp);
 	void (*destroy)(struct cgroup_subsys *ss, struct cgroup *cgrp);
 	int (*can_attach)(struct cgroup_subsys *ss, struct cgroup *cgrp,
-			  struct task_struct *tsk);
-	int (*can_attach_task)(struct cgroup *cgrp, struct task_struct *tsk);
+			  struct cgroup_taskset *tset);
 	void (*cancel_attach)(struct cgroup_subsys *ss, struct cgroup *cgrp,
-			      struct task_struct *tsk);
-	void (*pre_attach)(struct cgroup *cgrp);
-	void (*attach_task)(struct cgroup *cgrp, struct task_struct *tsk);
+			      struct cgroup_taskset *tset);
 	void (*attach)(struct cgroup_subsys *ss, struct cgroup *cgrp,
-		       struct cgroup *old_cgrp, struct task_struct *tsk);
+		       struct cgroup_taskset *tset);
 	void (*fork)(struct cgroup_subsys *ss, struct task_struct *task);
 	void (*exit)(struct cgroup_subsys *ss, struct cgroup *cgrp,
 			struct cgroup *old_cgrp, struct task_struct *task);
diff --git a/include/linux/clk.h b/include/linux/clk.h
index 7213b52b2c0e..b9d46fa154b4 100644
--- a/include/linux/clk.h
+++ b/include/linux/clk.h
@@ -107,6 +107,28 @@ static inline void clk_unprepare(struct clk *clk)
 }
 #endif
 
+/* clk_prepare_enable helps cases using clk_enable in non-atomic context. */
+static inline int clk_prepare_enable(struct clk *clk)
+{
+	int ret;
+
+	ret = clk_prepare(clk);
+	if (ret)
+		return ret;
+	ret = clk_enable(clk);
+	if (ret)
+		clk_unprepare(clk);
+
+	return ret;
+}
+
+/* clk_disable_unprepare helps cases using clk_disable in non-atomic context. */
+static inline void clk_disable_unprepare(struct clk *clk)
+{
+	clk_disable(clk);
+	clk_unprepare(clk);
+}
+
 /**
  * clk_get_rate - obtain the current clock rate (in Hz) for a clock source.
  *		  This is only valid once the clock source has been enabled.
diff --git a/include/linux/compiler-gcc4.h b/include/linux/compiler-gcc4.h
index dfadc96e9d63..2f4079175afb 100644
--- a/include/linux/compiler-gcc4.h
+++ b/include/linux/compiler-gcc4.h
@@ -29,6 +29,7 @@
    the kernel context */
 #define __cold			__attribute__((__cold__))
 
+#define __linktime_error(message) __attribute__((__error__(message)))
 
 #if __GNUC_MINOR__ >= 5
 /*
diff --git a/include/linux/compiler.h b/include/linux/compiler.h
index 320d6c94ff84..4a243546d142 100644
--- a/include/linux/compiler.h
+++ b/include/linux/compiler.h
@@ -293,7 +293,9 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect);
 #ifndef __compiletime_error
 # define __compiletime_error(message)
 #endif
-
+#ifndef __linktime_error
+# define __linktime_error(message)
+#endif
 /*
  * Prevent the compiler from merging or refetching accesses.  The compiler
  * is also forbidden from reordering successive instances of ACCESS_ONCE(),
diff --git a/include/linux/dcache.h b/include/linux/dcache.h
index ed9f74f6c519..a47bda5f76db 100644
--- a/include/linux/dcache.h
+++ b/include/linux/dcache.h
@@ -249,6 +249,7 @@ extern int d_invalidate(struct dentry *);
 
 /* only used at mount-time */
 extern struct dentry * d_alloc_root(struct inode *);
+extern struct dentry * d_make_root(struct inode *);
 
 /* <clickety>-<click> the ramfs-type tree */
 extern void d_genocide(struct dentry *);
diff --git a/include/linux/dlm.h b/include/linux/dlm.h
index d4e02f5353a0..6c7f6e9546c7 100644
--- a/include/linux/dlm.h
+++ b/include/linux/dlm.h
@@ -2,7 +2,7 @@
 *******************************************************************************
 **
 **  Copyright (C) Sistina Software, Inc.  1997-2003  All rights reserved.
-**  Copyright (C) 2004-2008 Red Hat, Inc.  All rights reserved.
+**  Copyright (C) 2004-2011 Red Hat, Inc.  All rights reserved.
 **
 **  This copyrighted material is made available to anyone wishing to use,
 **  modify, copy, or redistribute it subject to the terms and conditions
@@ -74,15 +74,76 @@ struct dlm_lksb {
 
 #ifdef __KERNEL__
 
+struct dlm_slot {
+	int nodeid; /* 1 to MAX_INT */
+	int slot;   /* 1 to MAX_INT */
+};
+
+/*
+ * recover_prep: called before the dlm begins lock recovery.
+ *   Notfies lockspace user that locks from failed members will be granted.
+ * recover_slot: called after recover_prep and before recover_done.
+ *   Identifies a failed lockspace member.
+ * recover_done: called after the dlm completes lock recovery.
+ *   Identifies lockspace members and lockspace generation number.
+ */
+
+struct dlm_lockspace_ops {
+	void (*recover_prep) (void *ops_arg);
+	void (*recover_slot) (void *ops_arg, struct dlm_slot *slot);
+	void (*recover_done) (void *ops_arg, struct dlm_slot *slots,
+			      int num_slots, int our_slot, uint32_t generation);
+};
+
 /*
  * dlm_new_lockspace
  *
- * Starts a lockspace with the given name.  If the named lockspace exists in
- * the cluster, the calling node joins it.
+ * Create/join a lockspace.
+ *
+ * name: lockspace name, null terminated, up to DLM_LOCKSPACE_LEN (not
+ *   including terminating null).
+ *
+ * cluster: cluster name, null terminated, up to DLM_LOCKSPACE_LEN (not
+ *   including terminating null).  Optional.  When cluster is null, it
+ *   is not used.  When set, dlm_new_lockspace() returns -EBADR if cluster
+ *   is not equal to the dlm cluster name.
+ *
+ * flags:
+ * DLM_LSFL_NODIR
+ *   The dlm should not use a resource directory, but statically assign
+ *   resource mastery to nodes based on the name hash that is otherwise
+ *   used to select the directory node.  Must be the same on all nodes.
+ * DLM_LSFL_TIMEWARN
+ *   The dlm should emit netlink messages if locks have been waiting
+ *   for a configurable amount of time.  (Unused.)
+ * DLM_LSFL_FS
+ *   The lockspace user is in the kernel (i.e. filesystem).  Enables
+ *   direct bast/cast callbacks.
+ * DLM_LSFL_NEWEXCL
+ *   dlm_new_lockspace() should return -EEXIST if the lockspace exists.
+ *
+ * lvblen: length of lvb in bytes.  Must be multiple of 8.
+ *   dlm_new_lockspace() returns an error if this does not match
+ *   what other nodes are using.
+ *
+ * ops: callbacks that indicate lockspace recovery points so the
+ *   caller can coordinate its recovery and know lockspace members.
+ *   This is only used by the initial dlm_new_lockspace() call.
+ *   Optional.
+ *
+ * ops_arg: arg for ops callbacks.
+ *
+ * ops_result: tells caller if the ops callbacks (if provided) will
+ *   be used or not.  0: will be used, -EXXX will not be used.
+ *   -EOPNOTSUPP: the dlm does not have recovery_callbacks enabled.
+ *
+ * lockspace: handle for dlm functions
  */
 
-int dlm_new_lockspace(const char *name, int namelen,
-		      dlm_lockspace_t **lockspace, uint32_t flags, int lvblen);
+int dlm_new_lockspace(const char *name, const char *cluster,
+		      uint32_t flags, int lvblen,
+		      const struct dlm_lockspace_ops *ops, void *ops_arg,
+		      int *ops_result, dlm_lockspace_t **lockspace);
 
 /*
  * dlm_release_lockspace
diff --git a/include/linux/elf-em.h b/include/linux/elf-em.h
index 18bea78fe47b..8e2b7bac4378 100644
--- a/include/linux/elf-em.h
+++ b/include/linux/elf-em.h
@@ -33,6 +33,7 @@
 #define EM_H8_300	46	/* Renesas H8/300,300H,H8S */
 #define EM_MN10300	89	/* Panasonic/MEI MN10300, AM33 */
 #define EM_BLACKFIN     106     /* ADI Blackfin Processor */
+#define EM_TI_C6000	140	/* TI C6X DSPs */
 #define EM_FRV		0x5441	/* Fujitsu FR-V */
 #define EM_AVR32	0x18ad	/* Atmel AVR32 */
 
diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index 3a76faf6a3ee..581e74b7df95 100644
--- a/include/linux/gfp.h
+++ b/include/linux/gfp.h
@@ -36,6 +36,7 @@ struct vm_area_struct;
 #endif
 #define ___GFP_NO_KSWAPD	0x400000u
 #define ___GFP_OTHER_NODE	0x800000u
+#define ___GFP_WRITE		0x1000000u
 
 /*
  * GFP bitmasks..
@@ -85,6 +86,7 @@ struct vm_area_struct;
 
 #define __GFP_NO_KSWAPD	((__force gfp_t)___GFP_NO_KSWAPD)
 #define __GFP_OTHER_NODE ((__force gfp_t)___GFP_OTHER_NODE) /* On behalf of other node */
+#define __GFP_WRITE	((__force gfp_t)___GFP_WRITE)	/* Allocator intends to dirty page */
 
 /*
  * This may seem redundant, but it's a way of annotating false positives vs.
@@ -92,7 +94,7 @@ struct vm_area_struct;
  */
 #define __GFP_NOTRACK_FALSE_POSITIVE (__GFP_NOTRACK)
 
-#define __GFP_BITS_SHIFT 24	/* Room for N __GFP_FOO bits */
+#define __GFP_BITS_SHIFT 25	/* Room for N __GFP_FOO bits */
 #define __GFP_BITS_MASK ((__force gfp_t)((1 << __GFP_BITS_SHIFT) - 1))
 
 /* This equals 0, but use constants in case they ever change */
@@ -313,7 +315,7 @@ static inline struct page *alloc_pages_node(int nid, gfp_t gfp_mask,
 static inline struct page *alloc_pages_exact_node(int nid, gfp_t gfp_mask,
 						unsigned int order)
 {
-	VM_BUG_ON(nid < 0 || nid >= MAX_NUMNODES);
+	VM_BUG_ON(nid < 0 || nid >= MAX_NUMNODES || !node_online(nid));
 
 	return __alloc_pages(gfp_mask, order, node_zonelist(nid, gfp_mask));
 }
@@ -358,6 +360,7 @@ void *alloc_pages_exact_nid(int nid, size_t size, gfp_t gfp_mask);
 extern void __free_pages(struct page *page, unsigned int order);
 extern void free_pages(unsigned long addr, unsigned int order);
 extern void free_hot_cold_page(struct page *page, int cold);
+extern void free_hot_cold_page_list(struct list_head *list, int cold);
 
 #define __free_page(page) __free_pages((page), 0)
 #define free_page(addr) free_pages((addr), 0)
@@ -367,9 +370,25 @@ void drain_zone_pages(struct zone *zone, struct per_cpu_pages *pcp);
 void drain_all_pages(void);
 void drain_local_pages(void *dummy);
 
+/*
+ * gfp_allowed_mask is set to GFP_BOOT_MASK during early boot to restrict what
+ * GFP flags are used before interrupts are enabled. Once interrupts are
+ * enabled, it is set to __GFP_BITS_MASK while the system is running. During
+ * hibernation, it is used by PM to avoid I/O during memory allocation while
+ * devices are suspended.
+ */
 extern gfp_t gfp_allowed_mask;
 
 extern void pm_restrict_gfp_mask(void);
 extern void pm_restore_gfp_mask(void);
 
+#ifdef CONFIG_PM_SLEEP
+extern bool pm_suspended_storage(void);
+#else
+static inline bool pm_suspended_storage(void)
+{
+	return false;
+}
+#endif /* CONFIG_PM_SLEEP */
+
 #endif /* __LINUX_GFP_H */
diff --git a/include/linux/gpio-pxa.h b/include/linux/gpio-pxa.h
new file mode 100644
index 000000000000..05071ee34c3f
--- /dev/null
+++ b/include/linux/gpio-pxa.h
@@ -0,0 +1,16 @@
+#ifndef __GPIO_PXA_H
+#define __GPIO_PXA_H
+
+#define GPIO_bit(x)	(1 << ((x) & 0x1f))
+
+#define gpio_to_bank(gpio)	((gpio) >> 5)
+
+/* NOTE: some PXAs have fewer on-chip GPIOs (like PXA255, with 85).
+ * Those cases currently cause holes in the GPIO number space, the
+ * actual number of the last GPIO is recorded by 'pxa_last_gpio'.
+ */
+extern int pxa_last_gpio;
+
+extern int pxa_irq_to_gpio(int irq);
+
+#endif /* __GPIO_PXA_H */
diff --git a/include/linux/hid.h b/include/linux/hid.h
index c235e4e8767c..3a95da60fd3e 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -72,6 +72,7 @@
 #include <linux/workqueue.h>
 #include <linux/input.h>
 #include <linux/semaphore.h>
+#include <linux/power_supply.h>
 
 /*
  * We parse each description item into this structure. Short items data
@@ -190,6 +191,7 @@ struct hid_item {
 #define HID_UP_UNDEFINED	0x00000000
 #define HID_UP_GENDESK		0x00010000
 #define HID_UP_SIMULATION	0x00020000
+#define HID_UP_GENDEVCTRLS	0x00060000
 #define HID_UP_KEYBOARD		0x00070000
 #define HID_UP_LED		0x00080000
 #define HID_UP_BUTTON		0x00090000
@@ -239,6 +241,8 @@ struct hid_item {
 #define HID_GD_RIGHT		0x00010092
 #define HID_GD_LEFT		0x00010093
 
+#define HID_DC_BATTERYSTRENGTH	0x00060020
+
 #define HID_DG_DIGITIZER	0x000d0001
 #define HID_DG_PEN		0x000d0002
 #define HID_DG_LIGHTPEN		0x000d0003
@@ -482,6 +486,19 @@ struct hid_device {							/* device report descriptor */
 	struct hid_driver *driver;
 	struct hid_ll_driver *ll_driver;
 
+#ifdef CONFIG_HID_BATTERY_STRENGTH
+	/*
+	 * Power supply information for HID devices which report
+	 * battery strength. power_supply is registered iff
+	 * battery.name is non-NULL.
+	 */
+	struct power_supply battery;
+	__s32 battery_min;
+	__s32 battery_max;
+	__s32 battery_report_type;
+	__s32 battery_report_id;
+#endif
+
 	unsigned int status;						/* see STAT flags above */
 	unsigned claimed;						/* Claimed by hidinput, hiddev? */
 	unsigned quirks;						/* Various quirks the device can pull on us */
@@ -712,6 +729,8 @@ extern void hidinput_disconnect(struct hid_device *);
 int hid_set_field(struct hid_field *, unsigned, __s32);
 int hid_input_report(struct hid_device *, int type, u8 *, int, int);
 int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field);
+struct hid_field *hidinput_get_led_field(struct hid_device *hid);
+unsigned int hidinput_count_leds(struct hid_device *hid);
 void hid_output_report(struct hid_report *report, __u8 *data);
 struct hid_device *hid_allocate_device(void);
 struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id);
@@ -719,6 +738,8 @@ int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size);
 int hid_check_keys_pressed(struct hid_device *hid);
 int hid_connect(struct hid_device *hid, unsigned int connect_mask);
 void hid_disconnect(struct hid_device *hid);
+const struct hid_device_id *hid_match_id(struct hid_device *hdev,
+					 const struct hid_device_id *id);
 
 /**
  * hid_map_usage - map usage input bits
diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
index 12ec328481de..62b908e0e591 100644
--- a/include/linux/hyperv.h
+++ b/include/linux/hyperv.h
@@ -35,7 +35,7 @@
 #include <linux/mod_devicetable.h>
 
 
-#define MAX_PAGE_BUFFER_COUNT				16
+#define MAX_PAGE_BUFFER_COUNT				18
 #define MAX_MULTIPAGE_BUFFER_COUNT			32 /* 128K */
 
 #pragma pack(push, 1)
diff --git a/include/linux/init_task.h b/include/linux/init_task.h
index 32574eef9394..9c66b1ada9d7 100644
--- a/include/linux/init_task.h
+++ b/include/linux/init_task.h
@@ -23,11 +23,10 @@ extern struct files_struct init_files;
 extern struct fs_struct init_fs;
 
 #ifdef CONFIG_CGROUPS
-#define INIT_THREADGROUP_FORK_LOCK(sig)					\
-	.threadgroup_fork_lock =					\
-		__RWSEM_INITIALIZER(sig.threadgroup_fork_lock),
+#define INIT_GROUP_RWSEM(sig)						\
+	.group_rwsem = __RWSEM_INITIALIZER(sig.group_rwsem),
 #else
-#define INIT_THREADGROUP_FORK_LOCK(sig)
+#define INIT_GROUP_RWSEM(sig)
 #endif
 
 #define INIT_SIGNALS(sig) {						\
@@ -46,7 +45,7 @@ extern struct fs_struct init_fs;
 	},								\
 	.cred_guard_mutex =						\
 		 __MUTEX_INITIALIZER(sig.cred_guard_mutex),		\
-	INIT_THREADGROUP_FORK_LOCK(sig)					\
+	INIT_GROUP_RWSEM(sig)						\
 }
 
 extern struct nsproxy init_nsproxy;
diff --git a/include/linux/input/auo-pixcir-ts.h b/include/linux/input/auo-pixcir-ts.h
new file mode 100644
index 000000000000..75d4be717714
--- /dev/null
+++ b/include/linux/input/auo-pixcir-ts.h
@@ -0,0 +1,56 @@
+/*
+ * Driver for AUO in-cell touchscreens
+ *
+ * Copyright (c) 2011 Heiko Stuebner <heiko@sntech.de>
+ *
+ * based on auo_touch.h from Dell Streak kernel
+ *
+ * Copyright (c) 2008 QUALCOMM Incorporated.
+ * Copyright (c) 2008 QUALCOMM USA, INC.
+ *
+ *
+ * This software is licensed under the terms of the GNU General Public
+ * License version 2, as published by the Free Software Foundation, and
+ * may be copied, distributed, and modified under those terms.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ */
+
+#ifndef __AUO_PIXCIR_TS_H__
+#define __AUO_PIXCIR_TS_H__
+
+/*
+ * Interrupt modes:
+ * periodical:		interrupt is asserted periodicaly
+ * compare coordinates:	interrupt is asserted when coordinates change
+ * indicate touch:	interrupt is asserted during touch
+ */
+#define AUO_PIXCIR_INT_PERIODICAL	0x00
+#define AUO_PIXCIR_INT_COMP_COORD	0x01
+#define AUO_PIXCIR_INT_TOUCH_IND	0x02
+
+/*
+ * @gpio_int		interrupt gpio
+ * @int_setting		one of AUO_PIXCIR_INT_*
+ * @init_hw		hardwarespecific init
+ * @exit_hw		hardwarespecific shutdown
+ * @x_max		x-resolution
+ * @y_max		y-resolution
+ */
+struct auo_pixcir_ts_platdata {
+	int gpio_int;
+
+	int int_setting;
+
+	void (*init_hw)(struct i2c_client *);
+	void (*exit_hw)(struct i2c_client *);
+
+	unsigned int x_max;
+	unsigned int y_max;
+};
+
+#endif
diff --git a/include/linux/input/gp2ap002a00f.h b/include/linux/input/gp2ap002a00f.h
new file mode 100644
index 000000000000..aad2fd44a61a
--- /dev/null
+++ b/include/linux/input/gp2ap002a00f.h
@@ -0,0 +1,22 @@
+#ifndef _GP2AP002A00F_H_
+#define _GP2AP002A00F_H_
+
+#include <linux/i2c.h>
+
+#define GP2A_I2C_NAME "gp2ap002a00f"
+
+/**
+ * struct gp2a_platform_data - Sharp gp2ap002a00f proximity platform data
+ * @vout_gpio: The gpio connected to the object detected pin (VOUT)
+ * @wakeup: Set to true if the proximity can wake the device from suspend
+ * @hw_setup: Callback for setting up hardware such as gpios and vregs
+ * @hw_shutdown: Callback for properly shutting down hardware
+ */
+struct gp2a_platform_data {
+	int vout_gpio;
+	bool wakeup;
+	int (*hw_setup)(struct i2c_client *client);
+	int (*hw_shutdown)(struct i2c_client *client);
+};
+
+#endif
diff --git a/include/linux/input/gpio_tilt.h b/include/linux/input/gpio_tilt.h
new file mode 100644
index 000000000000..c1cc52d380e0
--- /dev/null
+++ b/include/linux/input/gpio_tilt.h
@@ -0,0 +1,73 @@
+#ifndef _INPUT_GPIO_TILT_H
+#define _INPUT_GPIO_TILT_H
+
+/**
+ * struct gpio_tilt_axis - Axis used by the tilt switch
+ * @axis:		Constant describing the axis, e.g. ABS_X
+ * @min:		minimum value for abs_param
+ * @max:		maximum value for abs_param
+ * @fuzz:		fuzz value for abs_param
+ * @flat:		flat value for abs_param
+ */
+struct gpio_tilt_axis {
+	int axis;
+	int min;
+	int max;
+	int fuzz;
+	int flat;
+};
+
+/**
+ * struct gpio_tilt_state - state description
+ * @gpios:		bitfield of gpio target-states for the value
+ * @axes:		array containing the axes settings for the gpio state
+ *			The array indizes must correspond to the axes defined
+ *			in platform_data
+ *
+ * This structure describes a supported axis settings
+ * and the necessary gpio-state which represent it.
+ *
+ * The n-th bit in the bitfield describes the state of the n-th GPIO
+ * from the gpios-array defined in gpio_regulator_config below.
+ */
+struct gpio_tilt_state {
+	int gpios;
+	int *axes;
+};
+
+/**
+ * struct gpio_tilt_platform_data
+ * @gpios:		Array containing the gpios determining the tilt state
+ * @nr_gpios:		Number of gpios
+ * @axes:		Array of gpio_tilt_axis descriptions
+ * @nr_axes:		Number of axes
+ * @states:		Array of gpio_tilt_state entries describing
+ *			the gpio state for specific tilts
+ * @nr_states:		Number of states available
+ * @debounce_interval:	debounce ticks interval in msecs
+ * @poll_interval:	polling interval in msecs - for polling driver only
+ * @enable:		callback to enable the tilt switch
+ * @disable:		callback to disable the tilt switch
+ *
+ * This structure contains gpio-tilt-switch configuration
+ * information that must be passed by platform code to the
+ * gpio-tilt input driver.
+ */
+struct gpio_tilt_platform_data {
+	struct gpio *gpios;
+	int nr_gpios;
+
+	struct gpio_tilt_axis *axes;
+	int nr_axes;
+
+	struct gpio_tilt_state *states;
+	int nr_states;
+
+	int debounce_interval;
+
+	unsigned int poll_interval;
+	int (*enable)(struct device *dev);
+	void (*disable)(struct device *dev);
+};
+
+#endif
diff --git a/include/linux/input/pixcir_ts.h b/include/linux/input/pixcir_ts.h
new file mode 100644
index 000000000000..7163d91c0373
--- /dev/null
+++ b/include/linux/input/pixcir_ts.h
@@ -0,0 +1,10 @@
+#ifndef	_PIXCIR_I2C_TS_H
+#define	_PIXCIR_I2C_TS_H
+
+struct pixcir_ts_platform_data {
+	int (*attb_read_val)(void);
+	int x_max;
+	int y_max;
+};
+
+#endif
diff --git a/include/linux/input/samsung-keypad.h b/include/linux/input/samsung-keypad.h
new file mode 100644
index 000000000000..f25619bfd8a8
--- /dev/null
+++ b/include/linux/input/samsung-keypad.h
@@ -0,0 +1,43 @@
+/*
+ * Samsung Keypad platform data definitions
+ *
+ * Copyright (C) 2010 Samsung Electronics Co.Ltd
+ * Author: Joonyoung Shim <jy0922.shim@samsung.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#ifndef __SAMSUNG_KEYPAD_H
+#define __SAMSUNG_KEYPAD_H
+
+#include <linux/input/matrix_keypad.h>
+
+#define SAMSUNG_MAX_ROWS	8
+#define SAMSUNG_MAX_COLS	8
+
+/**
+ * struct samsung_keypad_platdata - Platform device data for Samsung Keypad.
+ * @keymap_data: pointer to &matrix_keymap_data.
+ * @rows: number of keypad row supported.
+ * @cols: number of keypad col supported.
+ * @no_autorepeat: disable key autorepeat.
+ * @wakeup: controls whether the device should be set up as wakeup source.
+ * @cfg_gpio: configure the GPIO.
+ *
+ * Initialisation data specific to either the machine or the platform
+ * for the device driver to use or call-back when configuring gpio.
+ */
+struct samsung_keypad_platdata {
+	const struct matrix_keymap_data	*keymap_data;
+	unsigned int rows;
+	unsigned int cols;
+	bool no_autorepeat;
+	bool wakeup;
+
+	void (*cfg_gpio)(unsigned int rows, unsigned int cols);
+};
+
+#endif /* __SAMSUNG_KEYPAD_H */
diff --git a/include/linux/input/tca8418_keypad.h b/include/linux/input/tca8418_keypad.h
new file mode 100644
index 000000000000..e71a85dc2cbd
--- /dev/null
+++ b/include/linux/input/tca8418_keypad.h
@@ -0,0 +1,44 @@
+/*
+ * TCA8418 keypad platform support
+ *
+ * Copyright (C) 2011 Fuel7, Inc.  All rights reserved.
+ *
+ * Author: Kyle Manna <kyle.manna@fuel7.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public
+ * License v2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public
+ * License along with this program; if not, write to the
+ * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 021110-1307, USA.
+ *
+ * If you can't comply with GPLv2, alternative licensing terms may be
+ * arranged. Please contact Fuel7, Inc. (http://fuel7.com/) for proprietary
+ * alternative licensing inquiries.
+ */
+
+#ifndef _TCA8418_KEYPAD_H
+#define _TCA8418_KEYPAD_H
+
+#include <linux/types.h>
+#include <linux/input/matrix_keypad.h>
+
+#define TCA8418_I2C_ADDR	0x34
+#define	TCA8418_NAME		"tca8418_keypad"
+
+struct tca8418_keypad_platform_data {
+	const struct matrix_keymap_data *keymap_data;
+	unsigned rows;
+	unsigned cols;
+	bool rep;
+	bool irq_is_gpio;
+};
+
+#endif
diff --git a/include/linux/iommu.h b/include/linux/iommu.h
index 432acc4c054d..d937580417ba 100644
--- a/include/linux/iommu.h
+++ b/include/linux/iommu.h
@@ -48,19 +48,34 @@ struct iommu_domain {
 
 #ifdef CONFIG_IOMMU_API
 
+/**
+ * struct iommu_ops - iommu ops and capabilities
+ * @domain_init: init iommu domain
+ * @domain_destroy: destroy iommu domain
+ * @attach_dev: attach device to an iommu domain
+ * @detach_dev: detach device from an iommu domain
+ * @map: map a physically contiguous memory region to an iommu domain
+ * @unmap: unmap a physically contiguous memory region from an iommu domain
+ * @iova_to_phys: translate iova to physical address
+ * @domain_has_cap: domain capabilities query
+ * @commit: commit iommu domain
+ * @pgsize_bitmap: bitmap of supported page sizes
+ */
 struct iommu_ops {
 	int (*domain_init)(struct iommu_domain *domain);
 	void (*domain_destroy)(struct iommu_domain *domain);
 	int (*attach_dev)(struct iommu_domain *domain, struct device *dev);
 	void (*detach_dev)(struct iommu_domain *domain, struct device *dev);
 	int (*map)(struct iommu_domain *domain, unsigned long iova,
-		   phys_addr_t paddr, int gfp_order, int prot);
-	int (*unmap)(struct iommu_domain *domain, unsigned long iova,
-		     int gfp_order);
+		   phys_addr_t paddr, size_t size, int prot);
+	size_t (*unmap)(struct iommu_domain *domain, unsigned long iova,
+		     size_t size);
 	phys_addr_t (*iova_to_phys)(struct iommu_domain *domain,
 				    unsigned long iova);
 	int (*domain_has_cap)(struct iommu_domain *domain,
 			      unsigned long cap);
+	int (*device_group)(struct device *dev, unsigned int *groupid);
+	unsigned long pgsize_bitmap;
 };
 
 extern int bus_set_iommu(struct bus_type *bus, struct iommu_ops *ops);
@@ -72,15 +87,16 @@ extern int iommu_attach_device(struct iommu_domain *domain,
 extern void iommu_detach_device(struct iommu_domain *domain,
 				struct device *dev);
 extern int iommu_map(struct iommu_domain *domain, unsigned long iova,
-		     phys_addr_t paddr, int gfp_order, int prot);
-extern int iommu_unmap(struct iommu_domain *domain, unsigned long iova,
-		       int gfp_order);
+		     phys_addr_t paddr, size_t size, int prot);
+extern size_t iommu_unmap(struct iommu_domain *domain, unsigned long iova,
+		       size_t size);
 extern phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain,
 				      unsigned long iova);
 extern int iommu_domain_has_cap(struct iommu_domain *domain,
 				unsigned long cap);
 extern void iommu_set_fault_handler(struct iommu_domain *domain,
 					iommu_fault_handler_t handler);
+extern int iommu_device_group(struct device *dev, unsigned int *groupid);
 
 /**
  * report_iommu_fault() - report about an IOMMU fault to the IOMMU framework
@@ -179,6 +195,11 @@ static inline void iommu_set_fault_handler(struct iommu_domain *domain,
 {
 }
 
+static inline int iommu_device_group(struct device *dev, unsigned int *groupid)
+{
+	return -ENODEV;
+}
+
 #endif /* CONFIG_IOMMU_API */
 
 #endif /* __LINUX_IOMMU_H */
diff --git a/include/linux/jbd.h b/include/linux/jbd.h
index c7acdde3243d..d211732b9e99 100644
--- a/include/linux/jbd.h
+++ b/include/linux/jbd.h
@@ -497,7 +497,6 @@ struct transaction_s
  * @j_format_version: Version of the superblock format
  * @j_state_lock: Protect the various scalars in the journal
  * @j_barrier_count:  Number of processes waiting to create a barrier lock
- * @j_barrier: The barrier lock itself
  * @j_running_transaction: The current running transaction..
  * @j_committing_transaction: the transaction we are pushing to disk
  * @j_checkpoint_transactions: a linked circular list of all transactions
@@ -580,9 +579,6 @@ struct journal_s
 	 */
 	int			j_barrier_count;
 
-	/* The barrier lock itself */
-	struct mutex		j_barrier;
-
 	/*
 	 * Transactions: The current running transaction...
 	 * [j_state_lock] [caller holding open handle]
@@ -913,6 +909,7 @@ extern int	journal_set_revoke(journal_t *, unsigned int, tid_t);
 extern int	journal_test_revoke(journal_t *, unsigned int, tid_t);
 extern void	journal_clear_revoke(journal_t *);
 extern void	journal_switch_revoke_table(journal_t *journal);
+extern void	journal_clear_buffer_revoked_flags(journal_t *journal);
 
 /*
  * The log thread user interface:
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index 2092ea21e469..5557baefed60 100644
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -1151,6 +1151,7 @@ extern int	jbd2_journal_set_revoke(journal_t *, unsigned long long, tid_t);
 extern int	jbd2_journal_test_revoke(journal_t *, unsigned long long, tid_t);
 extern void	jbd2_journal_clear_revoke(journal_t *);
 extern void	jbd2_journal_switch_revoke_table(journal_t *journal);
+extern void	jbd2_clear_buffer_revoked_flags(journal_t *journal);
 
 /*
  * The log thread user interface:
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index e8b1597b5cf2..f48e8a528544 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -665,6 +665,7 @@ static inline void ftrace_dump(enum ftrace_dump_mode oops_dump_mode) { }
 #define BUILD_BUG_ON_ZERO(e) (0)
 #define BUILD_BUG_ON_NULL(e) ((void*)0)
 #define BUILD_BUG_ON(condition)
+#define BUILD_BUG() (0)
 #else /* __CHECKER__ */
 
 /* Force a compilation error if a constant expression is not a power of 2 */
@@ -703,6 +704,21 @@ extern int __build_bug_on_failed;
 		if (condition) __build_bug_on_failed = 1;	\
 	} while(0)
 #endif
+
+/**
+ * BUILD_BUG - break compile if used.
+ *
+ * If you have some code that you expect the compiler to eliminate at
+ * build time, you should use BUILD_BUG to detect if it is
+ * unexpectedly used.
+ */
+#define BUILD_BUG()						\
+	do {							\
+		extern void __build_bug_failed(void)		\
+			__linktime_error("BUILD_BUG failed");	\
+		__build_bug_failed();				\
+	} while (0)
+
 #endif	/* __CHECKER__ */
 
 /* Trap pasters of __FUNCTION__ at compile-time */
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index d52623199978..900c76337e8f 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -14,6 +14,7 @@
 #include <linux/signal.h>
 #include <linux/sched.h>
 #include <linux/mm.h>
+#include <linux/mmu_notifier.h>
 #include <linux/preempt.h>
 #include <linux/msi.h>
 #include <linux/slab.h>
@@ -50,6 +51,9 @@
 #define KVM_REQ_APF_HALT          12
 #define KVM_REQ_STEAL_UPDATE      13
 #define KVM_REQ_NMI               14
+#define KVM_REQ_IMMEDIATE_EXIT    15
+#define KVM_REQ_PMU               16
+#define KVM_REQ_PMI               17
 
 #define KVM_USERSPACE_IRQ_SOURCE_ID	0
 
@@ -179,6 +183,7 @@ struct kvm_memory_slot {
 	unsigned long *rmap;
 	unsigned long *dirty_bitmap;
 	unsigned long *dirty_bitmap_head;
+	unsigned long nr_dirty_pages;
 	struct kvm_lpage_info *lpage_info[KVM_NR_PAGE_SIZES - 1];
 	unsigned long userspace_addr;
 	int user_alloc;
@@ -224,11 +229,20 @@ struct kvm_irq_routing_table {};
 
 #endif
 
+#ifndef KVM_MEM_SLOTS_NUM
+#define KVM_MEM_SLOTS_NUM (KVM_MEMORY_SLOTS + KVM_PRIVATE_MEM_SLOTS)
+#endif
+
+/*
+ * Note:
+ * memslots are not sorted by id anymore, please use id_to_memslot()
+ * to get the memslot by its id.
+ */
 struct kvm_memslots {
-	int nmemslots;
 	u64 generation;
-	struct kvm_memory_slot memslots[KVM_MEMORY_SLOTS +
-					KVM_PRIVATE_MEM_SLOTS];
+	struct kvm_memory_slot memslots[KVM_MEM_SLOTS_NUM];
+	/* The mapping table from slot id to the index in memslots[]. */
+	int id_to_index[KVM_MEM_SLOTS_NUM];
 };
 
 struct kvm {
@@ -239,7 +253,6 @@ struct kvm {
 	struct srcu_struct srcu;
 #ifdef CONFIG_KVM_APIC_ARCHITECTURE
 	u32 bsp_vcpu_id;
-	struct kvm_vcpu *bsp_vcpu;
 #endif
 	struct kvm_vcpu *vcpus[KVM_MAX_VCPUS];
 	atomic_t online_vcpus;
@@ -302,6 +315,11 @@ static inline struct kvm_vcpu *kvm_get_vcpu(struct kvm *kvm, int i)
 	     (vcpup = kvm_get_vcpu(kvm, idx)) != NULL; \
 	     idx++)
 
+#define kvm_for_each_memslot(memslot, slots)	\
+	for (memslot = &slots->memslots[0];	\
+	      memslot < slots->memslots + KVM_MEM_SLOTS_NUM && memslot->npages;\
+		memslot++)
+
 int kvm_vcpu_init(struct kvm_vcpu *vcpu, struct kvm *kvm, unsigned id);
 void kvm_vcpu_uninit(struct kvm_vcpu *vcpu);
 
@@ -314,6 +332,7 @@ void kvm_exit(void);
 
 void kvm_get_kvm(struct kvm *kvm);
 void kvm_put_kvm(struct kvm *kvm);
+void update_memslots(struct kvm_memslots *slots, struct kvm_memory_slot *new);
 
 static inline struct kvm_memslots *kvm_memslots(struct kvm *kvm)
 {
@@ -322,6 +341,18 @@ static inline struct kvm_memslots *kvm_memslots(struct kvm *kvm)
 			|| lockdep_is_held(&kvm->slots_lock));
 }
 
+static inline struct kvm_memory_slot *
+id_to_memslot(struct kvm_memslots *slots, int id)
+{
+	int index = slots->id_to_index[id];
+	struct kvm_memory_slot *slot;
+
+	slot = &slots->memslots[index];
+
+	WARN_ON(slot->id != id);
+	return slot;
+}
+
 #define HPA_MSB ((sizeof(hpa_t) * 8) - 1)
 #define HPA_ERR_MASK ((hpa_t)1 << HPA_MSB)
 static inline int is_error_hpa(hpa_t hpa) { return hpa >> HPA_MSB; }
diff --git a/include/linux/kvm_para.h b/include/linux/kvm_para.h
index 47a070b0520e..ff476ddaf310 100644
--- a/include/linux/kvm_para.h
+++ b/include/linux/kvm_para.h
@@ -35,4 +35,3 @@ static inline int kvm_para_has_feature(unsigned int feature)
 }
 #endif /* __KERNEL__ */
 #endif /* __LINUX_KVM_PARA_H */
-
diff --git a/include/linux/leds-tca6507.h b/include/linux/leds-tca6507.h
new file mode 100644
index 000000000000..dcabf4fa2aef
--- /dev/null
+++ b/include/linux/leds-tca6507.h
@@ -0,0 +1,34 @@
+/*
+ * TCA6507 LED chip driver.
+ *
+ * Copyright (C) 2011 Neil Brown <neil@brown.name>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+ * 02110-1301 USA
+ */
+
+#ifndef __LINUX_TCA6507_H
+#define __LINUX_TCA6507_H
+#include <linux/leds.h>
+
+struct tca6507_platform_data {
+	struct led_platform_data leds;
+#ifdef CONFIG_GPIOLIB
+	int gpio_base;
+	void (*setup)(unsigned gpio_base, unsigned ngpio);
+#endif
+};
+
+#define	TCA6507_MAKE_GPIO 1
+#endif /* __LINUX_TCA6507_H*/
diff --git a/include/linux/mbus.h b/include/linux/mbus.h
index c11ff2932549..efa1a6d7aca8 100644
--- a/include/linux/mbus.h
+++ b/include/linux/mbus.h
@@ -32,5 +32,16 @@ struct mbus_dram_target_info
 	} cs[4];
 };
 
-
+/*
+ * The Marvell mbus is to be found only on SOCs from the Orion family
+ * at the moment.  Provide a dummy stub for other architectures.
+ */
+#ifdef CONFIG_PLAT_ORION
+extern const struct mbus_dram_target_info *mv_mbus_dram_info(void);
+#else
+static inline const struct mbus_dram_target_info *mv_mbus_dram_info(void)
+{
+	return NULL;
+}
+#endif
 #endif
diff --git a/include/linux/memcontrol.h b/include/linux/memcontrol.h
index 9b296ea41bb8..f944591765eb 100644
--- a/include/linux/memcontrol.h
+++ b/include/linux/memcontrol.h
@@ -390,7 +390,6 @@ enum {
 	OVER_LIMIT,
 };
 
-#ifdef CONFIG_INET
 struct sock;
 #ifdef CONFIG_CGROUP_MEM_RES_CTLR_KMEM
 void sock_update_memcg(struct sock *sk);
@@ -403,6 +402,5 @@ static inline void sock_release_memcg(struct sock *sk)
 {
 }
 #endif /* CONFIG_CGROUP_MEM_RES_CTLR_KMEM */
-#endif /* CONFIG_INET */
 #endif /* _LINUX_MEMCONTROL_H */
 
diff --git a/include/linux/mempolicy.h b/include/linux/mempolicy.h
index 7978eec1b7d9..7c727a90d70d 100644
--- a/include/linux/mempolicy.h
+++ b/include/linux/mempolicy.h
@@ -164,11 +164,11 @@ static inline void mpol_get(struct mempolicy *pol)
 		atomic_inc(&pol->refcnt);
 }
 
-extern int __mpol_equal(struct mempolicy *a, struct mempolicy *b);
-static inline int mpol_equal(struct mempolicy *a, struct mempolicy *b)
+extern bool __mpol_equal(struct mempolicy *a, struct mempolicy *b);
+static inline bool mpol_equal(struct mempolicy *a, struct mempolicy *b)
 {
 	if (a == b)
-		return 1;
+		return true;
 	return __mpol_equal(a, b);
 }
 
@@ -257,9 +257,9 @@ static inline int vma_migratable(struct vm_area_struct *vma)
 
 struct mempolicy {};
 
-static inline int mpol_equal(struct mempolicy *a, struct mempolicy *b)
+static inline bool mpol_equal(struct mempolicy *a, struct mempolicy *b)
 {
-	return 1;
+	return true;
 }
 
 static inline void mpol_put(struct mempolicy *p)
diff --git a/include/linux/mfd/mc13xxx.h b/include/linux/mfd/mc13xxx.h
index 3816c2fac0ad..a98e2a316d1f 100644
--- a/include/linux/mfd/mc13xxx.h
+++ b/include/linux/mfd/mc13xxx.h
@@ -69,6 +69,7 @@ struct regulator_init_data;
 struct mc13xxx_regulator_init_data {
 	int id;
 	struct regulator_init_data *init_data;
+	struct device_node *node;
 };
 
 struct mc13xxx_regulator_platform_data {
diff --git a/include/linux/mfd/tps65910.h b/include/linux/mfd/tps65910.h
index 8bf2cb9502dd..d0cb12eba402 100644
--- a/include/linux/mfd/tps65910.h
+++ b/include/linux/mfd/tps65910.h
@@ -740,6 +740,34 @@
 #define TPS65910_GPIO_STS				BIT(1)
 #define TPS65910_GPIO_SET				BIT(0)
 
+/* Regulator Index Definitions */
+#define TPS65910_REG_VRTC				0
+#define TPS65910_REG_VIO				1
+#define TPS65910_REG_VDD1				2
+#define TPS65910_REG_VDD2				3
+#define TPS65910_REG_VDD3				4
+#define TPS65910_REG_VDIG1				5
+#define TPS65910_REG_VDIG2				6
+#define TPS65910_REG_VPLL				7
+#define TPS65910_REG_VDAC				8
+#define TPS65910_REG_VAUX1				9
+#define TPS65910_REG_VAUX2				10
+#define TPS65910_REG_VAUX33				11
+#define TPS65910_REG_VMMC				12
+
+#define TPS65911_REG_VDDCTRL				4
+#define TPS65911_REG_LDO1				5
+#define TPS65911_REG_LDO2				6
+#define TPS65911_REG_LDO3				7
+#define TPS65911_REG_LDO4				8
+#define TPS65911_REG_LDO5				9
+#define TPS65911_REG_LDO6				10
+#define TPS65911_REG_LDO7				11
+#define TPS65911_REG_LDO8				12
+
+/* Max number of TPS65910/11 regulators */
+#define TPS65910_NUM_REGS				13
+
 /**
  * struct tps65910_board
  * Board platform data may be used to initialize regulators.
@@ -751,7 +779,7 @@ struct tps65910_board {
 	int irq_base;
 	int vmbch_threshold;
 	int vmbch2_threshold;
-	struct regulator_init_data *tps65910_pmic_init_data;
+	struct regulator_init_data *tps65910_pmic_init_data[TPS65910_NUM_REGS];
 };
 
 /**
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 5d9b4c9813bd..6eba2cc016c9 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1482,6 +1482,18 @@ static inline unsigned long vma_pages(struct vm_area_struct *vma)
 	return (vma->vm_end - vma->vm_start) >> PAGE_SHIFT;
 }
 
+/* Look up the first VMA which exactly match the interval vm_start ... vm_end */
+static inline struct vm_area_struct *find_exact_vma(struct mm_struct *mm,
+				unsigned long vm_start, unsigned long vm_end)
+{
+	struct vm_area_struct *vma = find_vma(mm, vm_start);
+
+	if (vma && (vma->vm_start != vm_start || vma->vm_end != vm_end))
+		vma = NULL;
+
+	return vma;
+}
+
 #ifdef CONFIG_MMU
 pgprot_t vm_get_page_prot(unsigned long vm_flags);
 #else
@@ -1618,5 +1630,22 @@ extern void copy_user_huge_page(struct page *dst, struct page *src,
 				unsigned int pages_per_huge_page);
 #endif /* CONFIG_TRANSPARENT_HUGEPAGE || CONFIG_HUGETLBFS */
 
+#ifdef CONFIG_DEBUG_PAGEALLOC
+extern unsigned int _debug_guardpage_minorder;
+
+static inline unsigned int debug_guardpage_minorder(void)
+{
+	return _debug_guardpage_minorder;
+}
+
+static inline bool page_is_guard(struct page *page)
+{
+	return test_bit(PAGE_DEBUG_FLAG_GUARD, &page->debug_flags);
+}
+#else
+static inline unsigned int debug_guardpage_minorder(void) { return 0; }
+static inline bool page_is_guard(struct page *page) { return false; }
+#endif /* CONFIG_DEBUG_PAGEALLOC */
+
 #endif /* __KERNEL__ */
 #endif /* _LINUX_MM_H */
diff --git a/include/linux/mmzone.h b/include/linux/mmzone.h
index 3ac040f19369..ca6ca92418a6 100644
--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -317,6 +317,12 @@ struct zone {
 	 */
 	unsigned long		lowmem_reserve[MAX_NR_ZONES];
 
+	/*
+	 * This is a per-zone reserve of pages that should not be
+	 * considered dirtyable memory.
+	 */
+	unsigned long		dirty_balance_reserve;
+
 #ifdef CONFIG_NUMA
 	int node;
 	/*
diff --git a/include/linux/msi.h b/include/linux/msi.h
index 05acced439a3..ce93a341337d 100644
--- a/include/linux/msi.h
+++ b/include/linux/msi.h
@@ -1,6 +1,7 @@
 #ifndef LINUX_MSI_H
 #define LINUX_MSI_H
 
+#include <linux/kobject.h>
 #include <linux/list.h>
 
 struct msi_msg {
@@ -44,6 +45,8 @@ struct msi_desc {
 
 	/* Last set MSI message */
 	struct msi_msg msg;
+
+	struct kobject kobj;
 };
 
 /*
diff --git a/include/linux/mtd/cfi.h b/include/linux/mtd/cfi.h
index d24925492972..d5d2ec6494bb 100644
--- a/include/linux/mtd/cfi.h
+++ b/include/linux/mtd/cfi.h
@@ -354,10 +354,10 @@ static inline map_word cfi_build_cmd(u_long cmd, struct map_info *map, struct cf
 		onecmd = cmd;
 		break;
 	case 2:
-		onecmd = cpu_to_cfi16(cmd);
+		onecmd = cpu_to_cfi16(map, cmd);
 		break;
 	case 4:
-		onecmd = cpu_to_cfi32(cmd);
+		onecmd = cpu_to_cfi32(map, cmd);
 		break;
 	}
 
@@ -437,10 +437,10 @@ static inline unsigned long cfi_merge_status(map_word val, struct map_info *map,
 	case 1:
 		break;
 	case 2:
-		res = cfi16_to_cpu(res);
+		res = cfi16_to_cpu(map, res);
 		break;
 	case 4:
-		res = cfi32_to_cpu(res);
+		res = cfi32_to_cpu(map, res);
 		break;
 	default: BUG();
 	}
@@ -480,12 +480,12 @@ static inline uint8_t cfi_read_query(struct map_info *map, uint32_t addr)
 	if (map_bankwidth_is_1(map)) {
 		return val.x[0];
 	} else if (map_bankwidth_is_2(map)) {
-		return cfi16_to_cpu(val.x[0]);
+		return cfi16_to_cpu(map, val.x[0]);
 	} else {
 		/* No point in a 64-bit byteswap since that would just be
 		   swapping the responses from different chips, and we are
 		   only interested in one chip (a representative sample) */
-		return cfi32_to_cpu(val.x[0]);
+		return cfi32_to_cpu(map, val.x[0]);
 	}
 }
 
@@ -496,12 +496,12 @@ static inline uint16_t cfi_read_query16(struct map_info *map, uint32_t addr)
 	if (map_bankwidth_is_1(map)) {
 		return val.x[0] & 0xff;
 	} else if (map_bankwidth_is_2(map)) {
-		return cfi16_to_cpu(val.x[0]);
+		return cfi16_to_cpu(map, val.x[0]);
 	} else {
 		/* No point in a 64-bit byteswap since that would just be
 		   swapping the responses from different chips, and we are
 		   only interested in one chip (a representative sample) */
-		return cfi32_to_cpu(val.x[0]);
+		return cfi32_to_cpu(map, val.x[0]);
 	}
 }
 
diff --git a/include/linux/mtd/cfi_endian.h b/include/linux/mtd/cfi_endian.h
index 51cc3f5917a8..b97a625071f8 100644
--- a/include/linux/mtd/cfi_endian.h
+++ b/include/linux/mtd/cfi_endian.h
@@ -19,53 +19,35 @@
 
 #include <asm/byteorder.h>
 
-#ifndef CONFIG_MTD_CFI_ADV_OPTIONS
-
-#define CFI_HOST_ENDIAN
-
-#else
-
-#ifdef CONFIG_MTD_CFI_NOSWAP
-#define CFI_HOST_ENDIAN
-#endif
-
-#ifdef CONFIG_MTD_CFI_LE_BYTE_SWAP
-#define CFI_LITTLE_ENDIAN
-#endif
-
-#ifdef CONFIG_MTD_CFI_BE_BYTE_SWAP
-#define CFI_BIG_ENDIAN
-#endif
-
-#endif
-
-#if defined(CFI_LITTLE_ENDIAN)
-#define cpu_to_cfi8(x) (x)
-#define cfi8_to_cpu(x) (x)
-#define cpu_to_cfi16(x) cpu_to_le16(x)
-#define cpu_to_cfi32(x) cpu_to_le32(x)
-#define cpu_to_cfi64(x) cpu_to_le64(x)
-#define cfi16_to_cpu(x) le16_to_cpu(x)
-#define cfi32_to_cpu(x) le32_to_cpu(x)
-#define cfi64_to_cpu(x) le64_to_cpu(x)
-#elif defined (CFI_BIG_ENDIAN)
-#define cpu_to_cfi8(x) (x)
-#define cfi8_to_cpu(x) (x)
-#define cpu_to_cfi16(x) cpu_to_be16(x)
-#define cpu_to_cfi32(x) cpu_to_be32(x)
-#define cpu_to_cfi64(x) cpu_to_be64(x)
-#define cfi16_to_cpu(x) be16_to_cpu(x)
-#define cfi32_to_cpu(x) be32_to_cpu(x)
-#define cfi64_to_cpu(x) be64_to_cpu(x)
-#elif defined (CFI_HOST_ENDIAN)
-#define cpu_to_cfi8(x) (x)
-#define cfi8_to_cpu(x) (x)
-#define cpu_to_cfi16(x) (x)
-#define cpu_to_cfi32(x) (x)
-#define cpu_to_cfi64(x) (x)
-#define cfi16_to_cpu(x) (x)
-#define cfi32_to_cpu(x) (x)
-#define cfi64_to_cpu(x) (x)
+#define CFI_HOST_ENDIAN 1
+#define CFI_LITTLE_ENDIAN 2
+#define CFI_BIG_ENDIAN 3
+
+#if !defined(CONFIG_MTD_CFI_ADV_OPTIONS) || defined(CONFIG_MTD_CFI_NOSWAP)
+#define CFI_DEFAULT_ENDIAN CFI_HOST_ENDIAN
+#elif defined(CONFIG_MTD_CFI_LE_BYTE_SWAP)
+#define CFI_DEFAULT_ENDIAN CFI_LITTLE_ENDIAN
+#elif defined(CONFIG_MTD_CFI_BE_BYTE_SWAP)
+#define CFI_DEFAULT_ENDIAN CFI_BIG_ENDIAN
 #else
 #error No CFI endianness defined
 #endif
+
+#define cfi_default(s) ((s)?:CFI_DEFAULT_ENDIAN)
+#define cfi_be(s) (cfi_default(s) == CFI_BIG_ENDIAN)
+#define cfi_le(s) (cfi_default(s) == CFI_LITTLE_ENDIAN)
+#define cfi_host(s) (cfi_default(s) == CFI_HOST_ENDIAN)
+
+#define cpu_to_cfi8(map, x) (x)
+#define cfi8_to_cpu(map, x) (x)
+#define cpu_to_cfi16(map, x) _cpu_to_cfi(16, (map)->swap, (x))
+#define cpu_to_cfi32(map, x) _cpu_to_cfi(32, (map)->swap, (x))
+#define cpu_to_cfi64(map, x) _cpu_to_cfi(64, (map)->swap, (x))
+#define cfi16_to_cpu(map, x) _cfi_to_cpu(16, (map)->swap, (x))
+#define cfi32_to_cpu(map, x) _cfi_to_cpu(32, (map)->swap, (x))
+#define cfi64_to_cpu(map, x) _cfi_to_cpu(64, (map)->swap, (x))
+
+#define _cpu_to_cfi(w, s, x) (cfi_host(s)?(x):_swap_to_cfi(w, s, x))
+#define _cfi_to_cpu(w, s, x) (cfi_host(s)?(x):_swap_to_cpu(w, s, x))
+#define _swap_to_cfi(w, s, x) (cfi_be(s)?cpu_to_be##w(x):cpu_to_le##w(x))
+#define _swap_to_cpu(w, s, x) (cfi_be(s)?be##w##_to_cpu(x):le##w##_to_cpu(x))
diff --git a/include/linux/mtd/map.h b/include/linux/mtd/map.h
index a9e6ba46865e..94e924e2ecd5 100644
--- a/include/linux/mtd/map.h
+++ b/include/linux/mtd/map.h
@@ -26,7 +26,7 @@
 #include <linux/list.h>
 #include <linux/string.h>
 #include <linux/bug.h>
-
+#include <linux/kernel.h>
 
 #include <asm/unaligned.h>
 #include <asm/system.h>
@@ -214,6 +214,7 @@ struct map_info {
 	void __iomem *virt;
 	void *cached;
 
+	int swap; /* this mapping's byte-swapping requirement */
 	int bankwidth; /* in octets. This isn't necessarily the width
 		       of actual bus cycles -- it's the repeat interval
 		      in bytes, before you are talking to the first chip again.
diff --git a/include/linux/mtd/mtd.h b/include/linux/mtd/mtd.h
index 9f5b312af783..1a81fde8f333 100644
--- a/include/linux/mtd/mtd.h
+++ b/include/linux/mtd/mtd.h
@@ -171,87 +171,60 @@ struct mtd_info {
 	struct mtd_erase_region_info *eraseregions;
 
 	/*
-	 * Erase is an asynchronous operation.  Device drivers are supposed
-	 * to call instr->callback() whenever the operation completes, even
-	 * if it completes with a failure.
-	 * Callers are supposed to pass a callback function and wait for it
-	 * to be called before writing to the block.
+	 * Do not call via these pointers, use corresponding mtd_*()
+	 * wrappers instead.
 	 */
 	int (*erase) (struct mtd_info *mtd, struct erase_info *instr);
-
-	/* This stuff for eXecute-In-Place */
-	/* phys is optional and may be set to NULL */
 	int (*point) (struct mtd_info *mtd, loff_t from, size_t len,
-			size_t *retlen, void **virt, resource_size_t *phys);
-
-	/* We probably shouldn't allow XIP if the unpoint isn't a NULL */
+		      size_t *retlen, void **virt, resource_size_t *phys);
 	void (*unpoint) (struct mtd_info *mtd, loff_t from, size_t len);
-
-	/* Allow NOMMU mmap() to directly map the device (if not NULL)
-	 * - return the address to which the offset maps
-	 * - return -ENOSYS to indicate refusal to do the mapping
-	 */
 	unsigned long (*get_unmapped_area) (struct mtd_info *mtd,
 					    unsigned long len,
 					    unsigned long offset,
 					    unsigned long flags);
-
-	/* Backing device capabilities for this device
-	 * - provides mmap capabilities
-	 */
-	struct backing_dev_info *backing_dev_info;
-
-
-	int (*read) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
-	int (*write) (struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf);
-
-	/* In blackbox flight recorder like scenarios we want to make successful
-	   writes in interrupt context. panic_write() is only intended to be
-	   called when its known the kernel is about to panic and we need the
-	   write to succeed. Since the kernel is not going to be running for much
-	   longer, this function can break locks and delay to ensure the write
-	   succeeds (but not sleep). */
-
-	int (*panic_write) (struct mtd_info *mtd, loff_t to, size_t len, size_t *retlen, const u_char *buf);
-
+	int (*read) (struct mtd_info *mtd, loff_t from, size_t len,
+		     size_t *retlen, u_char *buf);
+	int (*write) (struct mtd_info *mtd, loff_t to, size_t len,
+		      size_t *retlen, const u_char *buf);
+	int (*panic_write) (struct mtd_info *mtd, loff_t to, size_t len,
+			    size_t *retlen, const u_char *buf);
 	int (*read_oob) (struct mtd_info *mtd, loff_t from,
 			 struct mtd_oob_ops *ops);
 	int (*write_oob) (struct mtd_info *mtd, loff_t to,
-			 struct mtd_oob_ops *ops);
-
-	/*
-	 * Methods to access the protection register area, present in some
-	 * flash devices. The user data is one time programmable but the
-	 * factory data is read only.
-	 */
-	int (*get_fact_prot_info) (struct mtd_info *mtd, struct otp_info *buf, size_t len);
-	int (*read_fact_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
-	int (*get_user_prot_info) (struct mtd_info *mtd, struct otp_info *buf, size_t len);
-	int (*read_user_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
-	int (*write_user_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len, size_t *retlen, u_char *buf);
-	int (*lock_user_prot_reg) (struct mtd_info *mtd, loff_t from, size_t len);
-
-	/* kvec-based read/write methods.
-	   NB: The 'count' parameter is the number of _vectors_, each of
-	   which contains an (ofs, len) tuple.
-	*/
-	int (*writev) (struct mtd_info *mtd, const struct kvec *vecs, unsigned long count, loff_t to, size_t *retlen);
-
-	/* Sync */
+			  struct mtd_oob_ops *ops);
+	int (*get_fact_prot_info) (struct mtd_info *mtd, struct otp_info *buf,
+				   size_t len);
+	int (*read_fact_prot_reg) (struct mtd_info *mtd, loff_t from,
+				   size_t len, size_t *retlen, u_char *buf);
+	int (*get_user_prot_info) (struct mtd_info *mtd, struct otp_info *buf,
+				   size_t len);
+	int (*read_user_prot_reg) (struct mtd_info *mtd, loff_t from,
+				   size_t len, size_t *retlen, u_char *buf);
+	int (*write_user_prot_reg) (struct mtd_info *mtd, loff_t to, size_t len,
+				    size_t *retlen, u_char *buf);
+	int (*lock_user_prot_reg) (struct mtd_info *mtd, loff_t from,
+				   size_t len);
+	int (*writev) (struct mtd_info *mtd, const struct kvec *vecs,
+			unsigned long count, loff_t to, size_t *retlen);
 	void (*sync) (struct mtd_info *mtd);
-
-	/* Chip-supported device locking */
 	int (*lock) (struct mtd_info *mtd, loff_t ofs, uint64_t len);
 	int (*unlock) (struct mtd_info *mtd, loff_t ofs, uint64_t len);
 	int (*is_locked) (struct mtd_info *mtd, loff_t ofs, uint64_t len);
-
-	/* Power Management functions */
+	int (*block_isbad) (struct mtd_info *mtd, loff_t ofs);
+	int (*block_markbad) (struct mtd_info *mtd, loff_t ofs);
 	int (*suspend) (struct mtd_info *mtd);
 	void (*resume) (struct mtd_info *mtd);
+	/*
+	 * If the driver is something smart, like UBI, it may need to maintain
+	 * its own reference counting. The below functions are only for driver.
+	 */
+	int (*get_device) (struct mtd_info *mtd);
+	void (*put_device) (struct mtd_info *mtd);
 
-	/* Bad block management functions */
-	int (*block_isbad) (struct mtd_info *mtd, loff_t ofs);
-	int (*block_markbad) (struct mtd_info *mtd, loff_t ofs);
+	/* Backing device capabilities for this device
+	 * - provides mmap capabilities
+	 */
+	struct backing_dev_info *backing_dev_info;
 
 	struct notifier_block reboot_notifier;  /* default mode before reboot */
 
@@ -265,18 +238,218 @@ struct mtd_info {
 	struct module *owner;
 	struct device dev;
 	int usecount;
-
-	/* If the driver is something smart, like UBI, it may need to maintain
-	 * its own reference counting. The below functions are only for driver.
-	 * The driver may register its callbacks. These callbacks are not
-	 * supposed to be called by MTD users */
-	int (*get_device) (struct mtd_info *mtd);
-	void (*put_device) (struct mtd_info *mtd);
 };
 
-static inline struct mtd_info *dev_to_mtd(struct device *dev)
+/*
+ * Erase is an asynchronous operation.  Device drivers are supposed
+ * to call instr->callback() whenever the operation completes, even
+ * if it completes with a failure.
+ * Callers are supposed to pass a callback function and wait for it
+ * to be called before writing to the block.
+ */
+static inline int mtd_erase(struct mtd_info *mtd, struct erase_info *instr)
+{
+	return mtd->erase(mtd, instr);
+}
+
+/*
+ * This stuff for eXecute-In-Place. phys is optional and may be set to NULL.
+ */
+static inline int mtd_point(struct mtd_info *mtd, loff_t from, size_t len,
+			    size_t *retlen, void **virt, resource_size_t *phys)
+{
+	*retlen = 0;
+	if (!mtd->point)
+		return -EOPNOTSUPP;
+	return mtd->point(mtd, from, len, retlen, virt, phys);
+}
+
+/* We probably shouldn't allow XIP if the unpoint isn't a NULL */
+static inline void mtd_unpoint(struct mtd_info *mtd, loff_t from, size_t len)
 {
-	return dev ? dev_get_drvdata(dev) : NULL;
+	return mtd->unpoint(mtd, from, len);
+}
+
+/*
+ * Allow NOMMU mmap() to directly map the device (if not NULL)
+ * - return the address to which the offset maps
+ * - return -ENOSYS to indicate refusal to do the mapping
+ */
+static inline unsigned long mtd_get_unmapped_area(struct mtd_info *mtd,
+						  unsigned long len,
+						  unsigned long offset,
+						  unsigned long flags)
+{
+	if (!mtd->get_unmapped_area)
+		return -EOPNOTSUPP;
+	return mtd->get_unmapped_area(mtd, len, offset, flags);
+}
+
+static inline int mtd_read(struct mtd_info *mtd, loff_t from, size_t len,
+			   size_t *retlen, u_char *buf)
+{
+	return mtd->read(mtd, from, len, retlen, buf);
+}
+
+static inline int mtd_write(struct mtd_info *mtd, loff_t to, size_t len,
+			    size_t *retlen, const u_char *buf)
+{
+	*retlen = 0;
+	if (!mtd->write)
+		return -EROFS;
+	return mtd->write(mtd, to, len, retlen, buf);
+}
+
+/*
+ * In blackbox flight recorder like scenarios we want to make successful writes
+ * in interrupt context. panic_write() is only intended to be called when its
+ * known the kernel is about to panic and we need the write to succeed. Since
+ * the kernel is not going to be running for much longer, this function can
+ * break locks and delay to ensure the write succeeds (but not sleep).
+ */
+static inline int mtd_panic_write(struct mtd_info *mtd, loff_t to, size_t len,
+				  size_t *retlen, const u_char *buf)
+{
+	*retlen = 0;
+	if (!mtd->panic_write)
+		return -EOPNOTSUPP;
+	return mtd->panic_write(mtd, to, len, retlen, buf);
+}
+
+static inline int mtd_read_oob(struct mtd_info *mtd, loff_t from,
+			       struct mtd_oob_ops *ops)
+{
+	ops->retlen = ops->oobretlen = 0;
+	if (!mtd->read_oob)
+		return -EOPNOTSUPP;
+	return mtd->read_oob(mtd, from, ops);
+}
+
+static inline int mtd_write_oob(struct mtd_info *mtd, loff_t to,
+				struct mtd_oob_ops *ops)
+{
+	ops->retlen = ops->oobretlen = 0;
+	if (!mtd->write_oob)
+		return -EOPNOTSUPP;
+	return mtd->write_oob(mtd, to, ops);
+}
+
+/*
+ * Method to access the protection register area, present in some flash
+ * devices. The user data is one time programmable but the factory data is read
+ * only.
+ */
+static inline int mtd_get_fact_prot_info(struct mtd_info *mtd,
+					 struct otp_info *buf, size_t len)
+{
+	if (!mtd->get_fact_prot_info)
+		return -EOPNOTSUPP;
+	return mtd->get_fact_prot_info(mtd, buf, len);
+}
+
+static inline int mtd_read_fact_prot_reg(struct mtd_info *mtd, loff_t from,
+					 size_t len, size_t *retlen,
+					 u_char *buf)
+{
+	*retlen = 0;
+	if (!mtd->read_fact_prot_reg)
+		return -EOPNOTSUPP;
+	return mtd->read_fact_prot_reg(mtd, from, len, retlen, buf);
+}
+
+static inline int mtd_get_user_prot_info(struct mtd_info *mtd,
+					 struct otp_info *buf,
+					 size_t len)
+{
+	if (!mtd->get_user_prot_info)
+		return -EOPNOTSUPP;
+	return mtd->get_user_prot_info(mtd, buf, len);
+}
+
+static inline int mtd_read_user_prot_reg(struct mtd_info *mtd, loff_t from,
+					 size_t len, size_t *retlen,
+					 u_char *buf)
+{
+	*retlen = 0;
+	if (!mtd->read_user_prot_reg)
+		return -EOPNOTSUPP;
+	return mtd->read_user_prot_reg(mtd, from, len, retlen, buf);
+}
+
+static inline int mtd_write_user_prot_reg(struct mtd_info *mtd, loff_t to,
+					  size_t len, size_t *retlen,
+					  u_char *buf)
+{
+	*retlen = 0;
+	if (!mtd->write_user_prot_reg)
+		return -EOPNOTSUPP;
+	return mtd->write_user_prot_reg(mtd, to, len, retlen, buf);
+}
+
+static inline int mtd_lock_user_prot_reg(struct mtd_info *mtd, loff_t from,
+					 size_t len)
+{
+	if (!mtd->lock_user_prot_reg)
+		return -EOPNOTSUPP;
+	return mtd->lock_user_prot_reg(mtd, from, len);
+}
+
+int mtd_writev(struct mtd_info *mtd, const struct kvec *vecs,
+	       unsigned long count, loff_t to, size_t *retlen);
+
+static inline void mtd_sync(struct mtd_info *mtd)
+{
+	if (mtd->sync)
+		mtd->sync(mtd);
+}
+
+/* Chip-supported device locking */
+static inline int mtd_lock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
+{
+	if (!mtd->lock)
+		return -EOPNOTSUPP;
+	return mtd->lock(mtd, ofs, len);
+}
+
+static inline int mtd_unlock(struct mtd_info *mtd, loff_t ofs, uint64_t len)
+{
+	if (!mtd->unlock)
+		return -EOPNOTSUPP;
+	return mtd->unlock(mtd, ofs, len);
+}
+
+static inline int mtd_is_locked(struct mtd_info *mtd, loff_t ofs, uint64_t len)
+{
+	if (!mtd->is_locked)
+		return -EOPNOTSUPP;
+	return mtd->is_locked(mtd, ofs, len);
+}
+
+static inline int mtd_suspend(struct mtd_info *mtd)
+{
+	if (!mtd->suspend)
+		return -EOPNOTSUPP;
+	return mtd->suspend(mtd);
+}
+
+static inline void mtd_resume(struct mtd_info *mtd)
+{
+	if (mtd->resume)
+		mtd->resume(mtd);
+}
+
+static inline int mtd_block_isbad(struct mtd_info *mtd, loff_t ofs)
+{
+	if (!mtd->block_isbad)
+		return -EOPNOTSUPP;
+	return mtd->block_isbad(mtd, ofs);
+}
+
+static inline int mtd_block_markbad(struct mtd_info *mtd, loff_t ofs)
+{
+	if (!mtd->block_markbad)
+		return -EOPNOTSUPP;
+	return mtd->block_markbad(mtd, ofs);
 }
 
 static inline uint32_t mtd_div_by_eb(uint64_t sz, struct mtd_info *mtd)
@@ -309,6 +482,16 @@ static inline uint32_t mtd_mod_by_ws(uint64_t sz, struct mtd_info *mtd)
 	return do_div(sz, mtd->writesize);
 }
 
+static inline int mtd_has_oob(const struct mtd_info *mtd)
+{
+	return mtd->read_oob && mtd->write_oob;
+}
+
+static inline int mtd_can_have_bb(const struct mtd_info *mtd)
+{
+	return !!mtd->block_isbad;
+}
+
 	/* Kernel-side ioctl definitions */
 
 struct mtd_partition;
@@ -338,13 +521,6 @@ struct mtd_notifier {
 
 extern void register_mtd_user (struct mtd_notifier *new);
 extern int unregister_mtd_user (struct mtd_notifier *old);
-
-int default_mtd_writev(struct mtd_info *mtd, const struct kvec *vecs,
-		       unsigned long count, loff_t to, size_t *retlen);
-
-int default_mtd_readv(struct mtd_info *mtd, struct kvec *vecs,
-		      unsigned long count, loff_t from, size_t *retlen);
-
 void *mtd_kmalloc_up_to(const struct mtd_info *mtd, size_t *size);
 
 void mtd_erase_callback(struct erase_info *instr);
diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index 904131bab501..63b5a8b6dfbd 100644
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -555,6 +555,7 @@ struct nand_chip {
 #define NAND_MFR_HYNIX		0xad
 #define NAND_MFR_MICRON		0x2c
 #define NAND_MFR_AMD		0x01
+#define NAND_MFR_MACRONIX	0xc2
 
 /**
  * struct nand_flash_dev - NAND Flash Device ID Structure
diff --git a/include/linux/mtd/physmap.h b/include/linux/mtd/physmap.h
index 04e018160e2b..d2887e76b7f6 100644
--- a/include/linux/mtd/physmap.h
+++ b/include/linux/mtd/physmap.h
@@ -30,6 +30,7 @@ struct physmap_flash_data {
 	unsigned int		pfow_base;
 	char                    *probe_type;
 	struct mtd_partition	*parts;
+	const char		**part_probe_types;
 };
 
 #endif /* __LINUX_MTD_PHYSMAP__ */
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index a1d109590da4..0eac07c95255 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -2155,7 +2155,7 @@ extern void netdev_run_todo(void);
  */
 static inline void dev_put(struct net_device *dev)
 {
-	irqsafe_cpu_dec(*dev->pcpu_refcnt);
+	this_cpu_dec(*dev->pcpu_refcnt);
 }
 
 /**
@@ -2166,7 +2166,7 @@ static inline void dev_put(struct net_device *dev)
  */
 static inline void dev_hold(struct net_device *dev)
 {
-	irqsafe_cpu_inc(*dev->pcpu_refcnt);
+	this_cpu_inc(*dev->pcpu_refcnt);
 }
 
 /* Carrier loss detection, dial on demand. The functions netif_carrier_on
@@ -2450,6 +2450,11 @@ static inline void netif_addr_lock(struct net_device *dev)
 	spin_lock(&dev->addr_list_lock);
 }
 
+static inline void netif_addr_lock_nested(struct net_device *dev)
+{
+	spin_lock_nested(&dev->addr_list_lock, SINGLE_DEPTH_NESTING);
+}
+
 static inline void netif_addr_lock_bh(struct net_device *dev)
 {
 	spin_lock_bh(&dev->addr_list_lock);
diff --git a/include/linux/netfilter/x_tables.h b/include/linux/netfilter/x_tables.h
index 32cddf78b13e..8d674a786744 100644
--- a/include/linux/netfilter/x_tables.h
+++ b/include/linux/netfilter/x_tables.h
@@ -471,7 +471,7 @@ DECLARE_PER_CPU(seqcount_t, xt_recseq);
  *
  * Begin packet processing : all readers must wait the end
  * 1) Must be called with preemption disabled
- * 2) softirqs must be disabled too (or we should use irqsafe_cpu_add())
+ * 2) softirqs must be disabled too (or we should use this_cpu_add())
  * Returns :
  *  1 if no recursion on this cpu
  *  0 if recursion detected
@@ -503,7 +503,7 @@ static inline unsigned int xt_write_recseq_begin(void)
  *
  * End packet processing : all readers can proceed
  * 1) Must be called with preemption disabled
- * 2) softirqs must be disabled too (or we should use irqsafe_cpu_add())
+ * 2) softirqs must be disabled too (or we should use this_cpu_add())
  */
 static inline void xt_write_recseq_end(unsigned int addend)
 {
diff --git a/include/linux/nfs_fs_sb.h b/include/linux/nfs_fs_sb.h
index b5479df8378d..ba4d7656ecfd 100644
--- a/include/linux/nfs_fs_sb.h
+++ b/include/linux/nfs_fs_sb.h
@@ -153,6 +153,7 @@ struct nfs_server {
 	struct rb_root		openowner_id;
 	struct rb_root		lockowner_id;
 #endif
+	struct list_head	state_owners_lru;
 	struct list_head	layouts;
 	struct list_head	delegations;
 	void (*destroy)(struct nfs_server *);
diff --git a/include/linux/nfs_idmap.h b/include/linux/nfs_idmap.h
index ae7d6a380dae..308c18877018 100644
--- a/include/linux/nfs_idmap.h
+++ b/include/linux/nfs_idmap.h
@@ -66,6 +66,8 @@ struct idmap_msg {
 /* Forward declaration to make this header independent of others */
 struct nfs_client;
 struct nfs_server;
+struct nfs_fattr;
+struct nfs4_string;
 
 #ifdef CONFIG_NFS_USE_NEW_IDMAPPER
 
@@ -97,6 +99,12 @@ void nfs_idmap_delete(struct nfs_client *);
 
 #endif /* CONFIG_NFS_USE_NEW_IDMAPPER */
 
+void nfs_fattr_init_names(struct nfs_fattr *fattr,
+		struct nfs4_string *owner_name,
+		struct nfs4_string *group_name);
+void nfs_fattr_free_names(struct nfs_fattr *);
+void nfs_fattr_map_and_free_names(struct nfs_server *, struct nfs_fattr *);
+
 int nfs_map_name_to_uid(const struct nfs_server *, const char *, size_t, __u32 *);
 int nfs_map_group_to_gid(const struct nfs_server *, const char *, size_t, __u32 *);
 int nfs_map_uid_to_name(const struct nfs_server *, __u32, char *, size_t);
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 2a7c533be5dd..a764cef06b73 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -18,6 +18,11 @@
 /* Forward declaration for NFS v3 */
 struct nfs4_secinfo_flavors;
 
+struct nfs4_string {
+	unsigned int len;
+	char *data;
+};
+
 struct nfs_fsid {
 	uint64_t		major;
 	uint64_t		minor;
@@ -61,6 +66,8 @@ struct nfs_fattr {
 	struct timespec		pre_ctime;	/* pre_op_attr.ctime	  */
 	unsigned long		time_start;
 	unsigned long		gencount;
+	struct nfs4_string	*owner_name;
+	struct nfs4_string	*group_name;
 };
 
 #define NFS_ATTR_FATTR_TYPE		(1U << 0)
@@ -85,6 +92,8 @@ struct nfs_fattr {
 #define NFS_ATTR_FATTR_V4_REFERRAL	(1U << 19)	/* NFSv4 referral */
 #define NFS_ATTR_FATTR_MOUNTPOINT	(1U << 20)	/* Treat as mountpoint */
 #define NFS_ATTR_FATTR_MOUNTED_ON_FILEID		(1U << 21)
+#define NFS_ATTR_FATTR_OWNER_NAME	(1U << 22)
+#define NFS_ATTR_FATTR_GROUP_NAME	(1U << 23)
 
 #define NFS_ATTR_FATTR (NFS_ATTR_FATTR_TYPE \
 		| NFS_ATTR_FATTR_MODE \
@@ -324,6 +333,7 @@ struct nfs_openargs {
 	const struct qstr *	name;
 	const struct nfs_server *server;	 /* Needed for ID mapping */
 	const u32 *		bitmask;
+	const u32 *		dir_bitmask;
 	__u32			claim;
 	struct nfs4_sequence_args	seq_args;
 };
@@ -342,6 +352,8 @@ struct nfs_openres {
 	__u32			do_recall;
 	__u64			maxsize;
 	__u32			attrset[NFS4_BITMAP_SIZE];
+	struct nfs4_string	*owner;
+	struct nfs4_string	*group_owner;
 	struct nfs4_sequence_res	seq_res;
 };
 
@@ -602,11 +614,16 @@ struct nfs_getaclargs {
 	size_t				acl_len;
 	unsigned int			acl_pgbase;
 	struct page **			acl_pages;
+	struct page *			acl_scratch;
 	struct nfs4_sequence_args 	seq_args;
 };
 
+/* getxattr ACL interface flags */
+#define NFS4_ACL_LEN_REQUEST	0x0001	/* zero length getxattr buffer */
 struct nfs_getaclres {
 	size_t				acl_len;
+	size_t				acl_data_offset;
+	int				acl_flags;
 	struct nfs4_sequence_res	seq_res;
 };
 
@@ -773,11 +790,6 @@ struct nfs3_getaclres {
 	struct posix_acl *	acl_default;
 };
 
-struct nfs4_string {
-	unsigned int len;
-	char *data;
-};
-
 #ifdef CONFIG_NFS_V4
 
 typedef u64 clientid4;
diff --git a/include/linux/nls.h b/include/linux/nls.h
index d47beef08dfd..5dc635f8d79e 100644
--- a/include/linux/nls.h
+++ b/include/linux/nls.h
@@ -43,7 +43,7 @@ enum utf16_endian {
 	UTF16_BIG_ENDIAN
 };
 
-/* nls.c */
+/* nls_base.c */
 extern int register_nls(struct nls_table *);
 extern int unregister_nls(struct nls_table *);
 extern struct nls_table *load_nls(char *);
@@ -52,7 +52,8 @@ extern struct nls_table *load_nls_default(void);
 
 extern int utf8_to_utf32(const u8 *s, int len, unicode_t *pu);
 extern int utf32_to_utf8(unicode_t u, u8 *s, int maxlen);
-extern int utf8s_to_utf16s(const u8 *s, int len, wchar_t *pwcs);
+extern int utf8s_to_utf16s(const u8 *s, int len,
+		enum utf16_endian endian, wchar_t *pwcs, int maxlen);
 extern int utf16s_to_utf8s(const wchar_t *pwcs, int len,
 		enum utf16_endian endian, u8 *s, int maxlen);
 
diff --git a/include/linux/page-debug-flags.h b/include/linux/page-debug-flags.h
index b0638fd91e92..22691f614043 100644
--- a/include/linux/page-debug-flags.h
+++ b/include/linux/page-debug-flags.h
@@ -13,6 +13,7 @@
 
 enum page_debug_flags {
 	PAGE_DEBUG_FLAG_POISON,		/* Page is poisoned */
+	PAGE_DEBUG_FLAG_GUARD,
 };
 
 /*
@@ -21,7 +22,8 @@ enum page_debug_flags {
  */
 
 #ifdef CONFIG_WANT_PAGE_DEBUG_FLAGS
-#if !defined(CONFIG_PAGE_POISONING) \
+#if !defined(CONFIG_PAGE_POISONING) && \
+    !defined(CONFIG_PAGE_GUARD) \
 /* && !defined(CONFIG_PAGE_DEBUG_SOMETHING_ELSE) && ... */
 #error WANT_PAGE_DEBUG_FLAGS is turned on with no debug features!
 #endif
diff --git a/include/linux/pagevec.h b/include/linux/pagevec.h
index bab82f4c571c..ed17024d2ebe 100644
--- a/include/linux/pagevec.h
+++ b/include/linux/pagevec.h
@@ -21,7 +21,6 @@ struct pagevec {
 };
 
 void __pagevec_release(struct pagevec *pvec);
-void __pagevec_free(struct pagevec *pvec);
 void ____pagevec_lru_add(struct pagevec *pvec, enum lru_list lru);
 void pagevec_strip(struct pagevec *pvec);
 unsigned pagevec_lookup(struct pagevec *pvec, struct address_space *mapping,
@@ -67,12 +66,6 @@ static inline void pagevec_release(struct pagevec *pvec)
 		__pagevec_release(pvec);
 }
 
-static inline void pagevec_free(struct pagevec *pvec)
-{
-	if (pagevec_count(pvec))
-		__pagevec_free(pvec);
-}
-
 static inline void __pagevec_lru_add_anon(struct pagevec *pvec)
 {
 	____pagevec_lru_add(pvec, LRU_INACTIVE_ANON);
diff --git a/include/linux/pci-aspm.h b/include/linux/pci-aspm.h
index 7cea7b6c1413..c8320144fe79 100644
--- a/include/linux/pci-aspm.h
+++ b/include/linux/pci-aspm.h
@@ -29,7 +29,7 @@ extern void pcie_aspm_pm_state_change(struct pci_dev *pdev);
 extern void pcie_aspm_powersave_config_link(struct pci_dev *pdev);
 extern void pci_disable_link_state(struct pci_dev *pdev, int state);
 extern void pci_disable_link_state_locked(struct pci_dev *pdev, int state);
-extern void pcie_clear_aspm(void);
+extern void pcie_clear_aspm(struct pci_bus *bus);
 extern void pcie_no_aspm(void);
 #else
 static inline void pcie_aspm_init_link_state(struct pci_dev *pdev)
@@ -47,7 +47,7 @@ static inline void pcie_aspm_powersave_config_link(struct pci_dev *pdev)
 static inline void pci_disable_link_state(struct pci_dev *pdev, int state)
 {
 }
-static inline void pcie_clear_aspm(void)
+static inline void pcie_clear_aspm(struct pci_bus *bus)
 {
 }
 static inline void pcie_no_aspm(void)
diff --git a/include/linux/pci.h b/include/linux/pci.h
index 7cda65b5f798..84225c756bd1 100644
--- a/include/linux/pci.h
+++ b/include/linux/pci.h
@@ -336,6 +336,7 @@ struct pci_dev {
 	struct bin_attribute *res_attr_wc[DEVICE_COUNT_RESOURCE]; /* sysfs file for WC mapping of resources */
 #ifdef CONFIG_PCI_MSI
 	struct list_head msi_list;
+	struct kset *msi_kset;
 #endif
 	struct pci_vpd *vpd;
 #ifdef CONFIG_PCI_ATS
diff --git a/include/linux/pci_regs.h b/include/linux/pci_regs.h
index b5d9657f3100..28fe380cb19d 100644
--- a/include/linux/pci_regs.h
+++ b/include/linux/pci_regs.h
@@ -537,7 +537,9 @@
 #define PCI_EXT_CAP_ID_ARI	14
 #define PCI_EXT_CAP_ID_ATS	15
 #define PCI_EXT_CAP_ID_SRIOV	16
+#define PCI_EXT_CAP_ID_PRI	19
 #define PCI_EXT_CAP_ID_LTR	24
+#define PCI_EXT_CAP_ID_PASID	27
 
 /* Advanced Error Reporting */
 #define PCI_ERR_UNCOR_STATUS	4	/* Uncorrectable Error Status */
@@ -664,24 +666,24 @@
 #define  PCI_ATS_MIN_STU	12	/* shift of minimum STU block */
 
 /* Page Request Interface */
-#define PCI_PRI_CAP		0x13    /* PRI capability ID */
-#define PCI_PRI_CONTROL_OFF	0x04	/* Offset of control register */
-#define PCI_PRI_STATUS_OFF	0x06	/* Offset of status register */
-#define PCI_PRI_ENABLE		0x0001	/* Enable mask */
-#define PCI_PRI_RESET		0x0002	/* Reset bit mask */
-#define PCI_PRI_STATUS_RF	0x0001  /* Request Failure */
-#define PCI_PRI_STATUS_UPRGI	0x0002  /* Unexpected PRG index */
-#define PCI_PRI_STATUS_STOPPED	0x0100  /* PRI Stopped */
-#define PCI_PRI_MAX_REQ_OFF	0x08	/* Cap offset for max reqs supported */
-#define PCI_PRI_ALLOC_REQ_OFF	0x0c	/* Cap offset for max reqs allowed */
+#define PCI_PRI_CTRL		0x04	/* PRI control register */
+#define  PCI_PRI_CTRL_ENABLE	0x01	/* Enable */
+#define  PCI_PRI_CTRL_RESET	0x02	/* Reset */
+#define PCI_PRI_STATUS		0x06	/* PRI status register */
+#define  PCI_PRI_STATUS_RF	0x001	/* Response Failure */
+#define  PCI_PRI_STATUS_UPRGI	0x002	/* Unexpected PRG index */
+#define  PCI_PRI_STATUS_STOPPED	0x100	/* PRI Stopped */
+#define PCI_PRI_MAX_REQ		0x08	/* PRI max reqs supported */
+#define PCI_PRI_ALLOC_REQ	0x0c	/* PRI max reqs allowed */
 
 /* PASID capability */
-#define PCI_PASID_CAP		0x1b    /* PASID capability ID */
-#define PCI_PASID_CAP_OFF	0x04    /* PASID feature register */
-#define PCI_PASID_CONTROL_OFF   0x06    /* PASID control register */
-#define PCI_PASID_ENABLE	0x01	/* Enable/Supported bit */
-#define PCI_PASID_EXEC		0x02	/* Exec permissions Enable/Supported */
-#define PCI_PASID_PRIV		0x04	/* Priviledge Mode Enable/Support */
+#define PCI_PASID_CAP		0x04    /* PASID feature register */
+#define  PCI_PASID_CAP_EXEC	0x02	/* Exec permissions Supported */
+#define  PCI_PASID_CAP_PRIV	0x04	/* Priviledge Mode Supported */
+#define PCI_PASID_CTRL		0x06    /* PASID control register */
+#define  PCI_PASID_CTRL_ENABLE	0x01	/* Enable bit */
+#define  PCI_PASID_CTRL_EXEC	0x02	/* Exec permissions Enable */
+#define  PCI_PASID_CTRL_PRIV	0x04	/* Priviledge Mode Enable */
 
 /* Single Root I/O Virtualization */
 #define PCI_SRIOV_CAP		0x04	/* SR-IOV Capabilities */
diff --git a/include/linux/percpu.h b/include/linux/percpu.h
index 9ca008f0c542..32cd1f67462e 100644
--- a/include/linux/percpu.h
+++ b/include/linux/percpu.h
@@ -172,10 +172,10 @@ extern phys_addr_t per_cpu_ptr_to_phys(void *addr);
  * equal char, int or long.  percpu_read() evaluates to a lvalue and
  * all others to void.
  *
- * These operations are guaranteed to be atomic w.r.t. preemption.
- * The generic versions use plain get/put_cpu_var().  Archs are
+ * These operations are guaranteed to be atomic.
+ * The generic versions disable interrupts.  Archs are
  * encouraged to implement single-instruction alternatives which don't
- * require preemption protection.
+ * require protection.
  */
 #ifndef percpu_read
 # define percpu_read(var)						\
@@ -347,9 +347,10 @@ do {									\
 
 #define _this_cpu_generic_to_op(pcp, val, op)				\
 do {									\
-	preempt_disable();						\
+	unsigned long flags;						\
+	local_irq_save(flags);						\
 	*__this_cpu_ptr(&(pcp)) op val;					\
-	preempt_enable();						\
+	local_irq_restore(flags);					\
 } while (0)
 
 #ifndef this_cpu_write
@@ -447,10 +448,11 @@ do {									\
 #define _this_cpu_generic_add_return(pcp, val)				\
 ({									\
 	typeof(pcp) ret__;						\
-	preempt_disable();						\
+	unsigned long flags;						\
+	local_irq_save(flags);						\
 	__this_cpu_add(pcp, val);					\
 	ret__ = __this_cpu_read(pcp);					\
-	preempt_enable();						\
+	local_irq_restore(flags);					\
 	ret__;								\
 })
 
@@ -476,10 +478,11 @@ do {									\
 
 #define _this_cpu_generic_xchg(pcp, nval)				\
 ({	typeof(pcp) ret__;						\
-	preempt_disable();						\
+	unsigned long flags;						\
+	local_irq_save(flags);						\
 	ret__ = __this_cpu_read(pcp);					\
 	__this_cpu_write(pcp, nval);					\
-	preempt_enable();						\
+	local_irq_restore(flags);					\
 	ret__;								\
 })
 
@@ -501,12 +504,14 @@ do {									\
 #endif
 
 #define _this_cpu_generic_cmpxchg(pcp, oval, nval)			\
-({	typeof(pcp) ret__;						\
-	preempt_disable();						\
+({									\
+	typeof(pcp) ret__;						\
+	unsigned long flags;						\
+	local_irq_save(flags);						\
 	ret__ = __this_cpu_read(pcp);					\
 	if (ret__ == (oval))						\
 		__this_cpu_write(pcp, nval);				\
-	preempt_enable();						\
+	local_irq_restore(flags);					\
 	ret__;								\
 })
 
@@ -538,10 +543,11 @@ do {									\
 #define _this_cpu_generic_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2)	\
 ({									\
 	int ret__;							\
-	preempt_disable();						\
+	unsigned long flags;						\
+	local_irq_save(flags);						\
 	ret__ = __this_cpu_generic_cmpxchg_double(pcp1, pcp2,		\
 			oval1, oval2, nval1, nval2);			\
-	preempt_enable();						\
+	local_irq_restore(flags);					\
 	ret__;								\
 })
 
@@ -567,9 +573,9 @@ do {									\
 #endif
 
 /*
- * Generic percpu operations that do not require preemption handling.
+ * Generic percpu operations for context that are safe from preemption/interrupts.
  * Either we do not care about races or the caller has the
- * responsibility of handling preemptions issues. Arch code can still
+ * responsibility of handling preemption/interrupt issues. Arch code can still
  * override these instructions since the arch per cpu code may be more
  * efficient and may actually get race freeness for free (that is the
  * case for x86 for example).
@@ -802,156 +808,4 @@ do {									\
 	__pcpu_double_call_return_bool(__this_cpu_cmpxchg_double_, (pcp1), (pcp2), (oval1), (oval2), (nval1), (nval2))
 #endif
 
-/*
- * IRQ safe versions of the per cpu RMW operations. Note that these operations
- * are *not* safe against modification of the same variable from another
- * processors (which one gets when using regular atomic operations)
- * They are guaranteed to be atomic vs. local interrupts and
- * preemption only.
- */
-#define irqsafe_cpu_generic_to_op(pcp, val, op)				\
-do {									\
-	unsigned long flags;						\
-	local_irq_save(flags);						\
-	*__this_cpu_ptr(&(pcp)) op val;					\
-	local_irq_restore(flags);					\
-} while (0)
-
-#ifndef irqsafe_cpu_add
-# ifndef irqsafe_cpu_add_1
-#  define irqsafe_cpu_add_1(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), +=)
-# endif
-# ifndef irqsafe_cpu_add_2
-#  define irqsafe_cpu_add_2(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), +=)
-# endif
-# ifndef irqsafe_cpu_add_4
-#  define irqsafe_cpu_add_4(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), +=)
-# endif
-# ifndef irqsafe_cpu_add_8
-#  define irqsafe_cpu_add_8(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), +=)
-# endif
-# define irqsafe_cpu_add(pcp, val) __pcpu_size_call(irqsafe_cpu_add_, (pcp), (val))
-#endif
-
-#ifndef irqsafe_cpu_sub
-# define irqsafe_cpu_sub(pcp, val)	irqsafe_cpu_add((pcp), -(val))
-#endif
-
-#ifndef irqsafe_cpu_inc
-# define irqsafe_cpu_inc(pcp)	irqsafe_cpu_add((pcp), 1)
-#endif
-
-#ifndef irqsafe_cpu_dec
-# define irqsafe_cpu_dec(pcp)	irqsafe_cpu_sub((pcp), 1)
-#endif
-
-#ifndef irqsafe_cpu_and
-# ifndef irqsafe_cpu_and_1
-#  define irqsafe_cpu_and_1(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), &=)
-# endif
-# ifndef irqsafe_cpu_and_2
-#  define irqsafe_cpu_and_2(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), &=)
-# endif
-# ifndef irqsafe_cpu_and_4
-#  define irqsafe_cpu_and_4(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), &=)
-# endif
-# ifndef irqsafe_cpu_and_8
-#  define irqsafe_cpu_and_8(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), &=)
-# endif
-# define irqsafe_cpu_and(pcp, val) __pcpu_size_call(irqsafe_cpu_and_, (val))
-#endif
-
-#ifndef irqsafe_cpu_or
-# ifndef irqsafe_cpu_or_1
-#  define irqsafe_cpu_or_1(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), |=)
-# endif
-# ifndef irqsafe_cpu_or_2
-#  define irqsafe_cpu_or_2(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), |=)
-# endif
-# ifndef irqsafe_cpu_or_4
-#  define irqsafe_cpu_or_4(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), |=)
-# endif
-# ifndef irqsafe_cpu_or_8
-#  define irqsafe_cpu_or_8(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), |=)
-# endif
-# define irqsafe_cpu_or(pcp, val) __pcpu_size_call(irqsafe_cpu_or_, (val))
-#endif
-
-#ifndef irqsafe_cpu_xor
-# ifndef irqsafe_cpu_xor_1
-#  define irqsafe_cpu_xor_1(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), ^=)
-# endif
-# ifndef irqsafe_cpu_xor_2
-#  define irqsafe_cpu_xor_2(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), ^=)
-# endif
-# ifndef irqsafe_cpu_xor_4
-#  define irqsafe_cpu_xor_4(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), ^=)
-# endif
-# ifndef irqsafe_cpu_xor_8
-#  define irqsafe_cpu_xor_8(pcp, val) irqsafe_cpu_generic_to_op((pcp), (val), ^=)
-# endif
-# define irqsafe_cpu_xor(pcp, val) __pcpu_size_call(irqsafe_cpu_xor_, (val))
-#endif
-
-#define irqsafe_cpu_generic_cmpxchg(pcp, oval, nval)			\
-({									\
-	typeof(pcp) ret__;						\
-	unsigned long flags;						\
-	local_irq_save(flags);						\
-	ret__ = __this_cpu_read(pcp);					\
-	if (ret__ == (oval))						\
-		__this_cpu_write(pcp, nval);				\
-	local_irq_restore(flags);					\
-	ret__;								\
-})
-
-#ifndef irqsafe_cpu_cmpxchg
-# ifndef irqsafe_cpu_cmpxchg_1
-#  define irqsafe_cpu_cmpxchg_1(pcp, oval, nval)	irqsafe_cpu_generic_cmpxchg(pcp, oval, nval)
-# endif
-# ifndef irqsafe_cpu_cmpxchg_2
-#  define irqsafe_cpu_cmpxchg_2(pcp, oval, nval)	irqsafe_cpu_generic_cmpxchg(pcp, oval, nval)
-# endif
-# ifndef irqsafe_cpu_cmpxchg_4
-#  define irqsafe_cpu_cmpxchg_4(pcp, oval, nval)	irqsafe_cpu_generic_cmpxchg(pcp, oval, nval)
-# endif
-# ifndef irqsafe_cpu_cmpxchg_8
-#  define irqsafe_cpu_cmpxchg_8(pcp, oval, nval)	irqsafe_cpu_generic_cmpxchg(pcp, oval, nval)
-# endif
-# define irqsafe_cpu_cmpxchg(pcp, oval, nval)		\
-	__pcpu_size_call_return2(irqsafe_cpu_cmpxchg_, (pcp), oval, nval)
-#endif
-
-#define irqsafe_generic_cpu_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2)	\
-({									\
-	int ret__;							\
-	unsigned long flags;						\
-	local_irq_save(flags);						\
-	ret__ = __this_cpu_generic_cmpxchg_double(pcp1, pcp2,		\
-			oval1, oval2, nval1, nval2);			\
-	local_irq_restore(flags);					\
-	ret__;								\
-})
-
-#ifndef irqsafe_cpu_cmpxchg_double
-# ifndef irqsafe_cpu_cmpxchg_double_1
-#  define irqsafe_cpu_cmpxchg_double_1(pcp1, pcp2, oval1, oval2, nval1, nval2)	\
-	irqsafe_generic_cpu_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2)
-# endif
-# ifndef irqsafe_cpu_cmpxchg_double_2
-#  define irqsafe_cpu_cmpxchg_double_2(pcp1, pcp2, oval1, oval2, nval1, nval2)	\
-	irqsafe_generic_cpu_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2)
-# endif
-# ifndef irqsafe_cpu_cmpxchg_double_4
-#  define irqsafe_cpu_cmpxchg_double_4(pcp1, pcp2, oval1, oval2, nval1, nval2)	\
-	irqsafe_generic_cpu_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2)
-# endif
-# ifndef irqsafe_cpu_cmpxchg_double_8
-#  define irqsafe_cpu_cmpxchg_double_8(pcp1, pcp2, oval1, oval2, nval1, nval2)	\
-	irqsafe_generic_cpu_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2)
-# endif
-# define irqsafe_cpu_cmpxchg_double(pcp1, pcp2, oval1, oval2, nval1, nval2)	\
-	__pcpu_double_call_return_bool(irqsafe_cpu_cmpxchg_double_, (pcp1), (pcp2), (oval1), (oval2), (nval1), (nval2))
-#endif
-
 #endif /* __LINUX_PERCPU_H */
diff --git a/include/linux/pid_namespace.h b/include/linux/pid_namespace.h
index 38d10326246a..e7cf6669ac34 100644
--- a/include/linux/pid_namespace.h
+++ b/include/linux/pid_namespace.h
@@ -30,6 +30,8 @@ struct pid_namespace {
 #ifdef CONFIG_BSD_PROCESS_ACCT
 	struct bsd_acct_struct *bacct;
 #endif
+	gid_t pid_gid;
+	int hide_pid;
 };
 
 extern struct pid_namespace init_pid_ns;
diff --git a/include/linux/pinctrl/machine.h b/include/linux/pinctrl/machine.h
index 88863531d862..d0aecb7f6fb9 100644
--- a/include/linux/pinctrl/machine.h
+++ b/include/linux/pinctrl/machine.h
@@ -48,7 +48,7 @@ struct pinmux_map {
 	const char *group;
 	struct device *dev;
 	const char *dev_name;
-	const bool hog_on_boot;
+	bool hog_on_boot;
 };
 
 /*
@@ -66,30 +66,22 @@ struct pinmux_map {
 	{ .name = a, .ctrl_dev_name = b, .function = c }
 
 /*
- * Convenience macro to map a function onto the primary device pinctrl device
- * this is especially helpful on systems that have only one pin controller
- * or need to set up a lot of mappings on the primary controller.
- */
-#define PINMUX_MAP_PRIMARY(a, b, c) \
-	{ .name = a, .ctrl_dev_name = "pinctrl.0", .function = b, \
-	  .dev_name = c }
-
-/*
- * Convenience macro to map a system function onto the primary pinctrl device.
- * System functions are not assigned to a particular device.
+ * Convenience macro to map a system function onto a certain pinctrl device,
+ * to be hogged by the pinmux core until the system shuts down.
  */
-#define PINMUX_MAP_PRIMARY_SYS(a, b) \
-	{ .name = a, .ctrl_dev_name = "pinctrl.0", .function = b }
+#define PINMUX_MAP_SYS_HOG(a, b, c) \
+	{ .name = a, .ctrl_dev_name = b, .function = c, \
+	  .hog_on_boot = true }
 
 /*
- * Convenience macro to map a system function onto the primary pinctrl device,
- * to be hogged by the pinmux core until the system shuts down.
+ * Convenience macro to map a system function onto a certain pinctrl device
+ * using a specified group, to be hogged by the pinmux core until the system
+ * shuts down.
  */
-#define PINMUX_MAP_PRIMARY_SYS_HOG(a, b) \
-	{ .name = a, .ctrl_dev_name = "pinctrl.0", .function = b, \
+#define PINMUX_MAP_SYS_HOG_GROUP(a, b, c, d)		\
+	{ .name = a, .ctrl_dev_name = b, .function = c, .group = d, \
 	  .hog_on_boot = true }
 
-
 #ifdef CONFIG_PINMUX
 
 extern int pinmux_register_mappings(struct pinmux_map const *map,
diff --git a/include/linux/pinctrl/pinconf.h b/include/linux/pinctrl/pinconf.h
new file mode 100644
index 000000000000..477922cf043a
--- /dev/null
+++ b/include/linux/pinctrl/pinconf.h
@@ -0,0 +1,97 @@
+/*
+ * Interface the pinconfig portions of the pinctrl subsystem
+ *
+ * Copyright (C) 2011 ST-Ericsson SA
+ * Written on behalf of Linaro for ST-Ericsson
+ * This interface is used in the core to keep track of pins.
+ *
+ * Author: Linus Walleij <linus.walleij@linaro.org>
+ *
+ * License terms: GNU General Public License (GPL) version 2
+ */
+#ifndef __LINUX_PINCTRL_PINCONF_H
+#define __LINUX_PINCTRL_PINCONF_H
+
+#ifdef CONFIG_PINCONF
+
+struct pinctrl_dev;
+struct seq_file;
+
+/**
+ * struct pinconf_ops - pin config operations, to be implemented by
+ * pin configuration capable drivers.
+ * @pin_config_get: get the config of a certain pin, if the requested config
+ *	is not available on this controller this should return -ENOTSUPP
+ *	and if it is available but disabled it should return -EINVAL
+ * @pin_config_get: get the config of a certain pin
+ * @pin_config_set: configure an individual pin
+ * @pin_config_group_get: get configurations for an entire pin group
+ * @pin_config_group_set: configure all pins in a group
+ * @pin_config_dbg_show: optional debugfs display hook that will provide
+ *	per-device info for a certain pin in debugfs
+ * @pin_config_group_dbg_show: optional debugfs display hook that will provide
+ *	per-device info for a certain group in debugfs
+ */
+struct pinconf_ops {
+	int (*pin_config_get) (struct pinctrl_dev *pctldev,
+			       unsigned pin,
+			       unsigned long *config);
+	int (*pin_config_set) (struct pinctrl_dev *pctldev,
+			       unsigned pin,
+			       unsigned long config);
+	int (*pin_config_group_get) (struct pinctrl_dev *pctldev,
+				     unsigned selector,
+				     unsigned long *config);
+	int (*pin_config_group_set) (struct pinctrl_dev *pctldev,
+				     unsigned selector,
+				     unsigned long config);
+	void (*pin_config_dbg_show) (struct pinctrl_dev *pctldev,
+				     struct seq_file *s,
+				     unsigned offset);
+	void (*pin_config_group_dbg_show) (struct pinctrl_dev *pctldev,
+					   struct seq_file *s,
+					   unsigned selector);
+};
+
+extern int pin_config_get(const char *dev_name, const char *name,
+			  unsigned long *config);
+extern int pin_config_set(const char *dev_name, const char *name,
+			  unsigned long config);
+extern int pin_config_group_get(const char *dev_name,
+				const char *pin_group,
+				unsigned long *config);
+extern int pin_config_group_set(const char *dev_name,
+				const char *pin_group,
+				unsigned long config);
+
+#else
+
+static inline int pin_config_get(const char *dev_name, const char *name,
+				 unsigned long *config)
+{
+	return 0;
+}
+
+static inline int pin_config_set(const char *dev_name, const char *name,
+				 unsigned long config)
+{
+	return 0;
+}
+
+static inline int pin_config_group_get(const char *dev_name,
+				       const char *pin_group,
+				       unsigned long *config)
+{
+	return 0;
+}
+
+static inline int pin_config_group_set(const char *dev_name,
+				       const char *pin_group,
+				       unsigned long config)
+{
+	return 0;
+}
+
+#endif
+
+#endif /* __LINUX_PINCTRL_PINCONF_H */
diff --git a/include/linux/pinctrl/pinctrl.h b/include/linux/pinctrl/pinctrl.h
index 04c011038f32..8bd22ee7aa09 100644
--- a/include/linux/pinctrl/pinctrl.h
+++ b/include/linux/pinctrl/pinctrl.h
@@ -21,6 +21,7 @@
 
 struct pinctrl_dev;
 struct pinmux_ops;
+struct pinconf_ops;
 struct gpio_chip;
 
 /**
@@ -45,6 +46,7 @@ struct pinctrl_pin_desc {
  * @name: a name for the chip in this range
  * @id: an ID number for the chip in this range
  * @base: base offset of the GPIO range
+ * @pin_base: base pin number of the GPIO range
  * @npins: number of pins in the GPIO range, including the base number
  * @gc: an optional pointer to a gpio_chip
  */
@@ -53,6 +55,7 @@ struct pinctrl_gpio_range {
 	const char *name;
 	unsigned int id;
 	unsigned int base;
+	unsigned int pin_base;
 	unsigned int npins;
 	struct gpio_chip *gc;
 };
@@ -89,22 +92,20 @@ struct pinctrl_ops {
  *	this pin controller
  * @npins: number of descriptors in the array, usually just ARRAY_SIZE()
  *	of the pins field above
- * @maxpin: since pin spaces may be sparse, there can he "holes" in the
- *	pin range, this attribute gives the maximum pin number in the
- *	total range. This should not be lower than npins for example,
- *	but may be equal to npins if you have no holes in the pin range.
  * @pctlops: pin control operation vtable, to support global concepts like
  *	grouping of pins, this is optional.
- * @pmxops: pinmux operation vtable, if you support pinmuxing in your driver
+ * @pmxops: pinmux operations vtable, if you support pinmuxing in your driver
+ * @confops: pin config operations vtable, if you support pin configuration in
+ *	your driver
  * @owner: module providing the pin controller, used for refcounting
  */
 struct pinctrl_desc {
 	const char *name;
 	struct pinctrl_pin_desc const *pins;
 	unsigned int npins;
-	unsigned int maxpin;
 	struct pinctrl_ops *pctlops;
 	struct pinmux_ops *pmxops;
+	struct pinconf_ops *confops;
 	struct module *owner;
 };
 
@@ -123,7 +124,7 @@ extern void *pinctrl_dev_get_drvdata(struct pinctrl_dev *pctldev);
 
 struct pinctrl_dev;
 
-/* Sufficiently stupid default function when pinctrl is not in use */
+/* Sufficiently stupid default functions when pinctrl is not in use */
 static inline bool pin_is_valid(struct pinctrl_dev *pctldev, int pin)
 {
 	return pin >= 0;
diff --git a/include/linux/pinctrl/pinmux.h b/include/linux/pinctrl/pinmux.h
index 3c430e797efc..937b3e2fa36f 100644
--- a/include/linux/pinctrl/pinmux.h
+++ b/include/linux/pinctrl/pinmux.h
@@ -52,9 +52,15 @@ struct pinctrl_dev;
  * @disable: disable a certain muxing selector with a certain pin group
  * @gpio_request_enable: requests and enables GPIO on a certain pin.
  *	Implement this only if you can mux every pin individually as GPIO. The
- *	affected GPIO range is passed along with an offset into that
+ *	affected GPIO range is passed along with an offset(pin number) into that
  *	specific GPIO range - function selectors and pin groups are orthogonal
- *	to this, the core will however make sure the pins do not collide
+ *	to this, the core will however make sure the pins do not collide.
+ * @gpio_disable_free: free up GPIO muxing on a certain pin, the reverse of
+ *	@gpio_request_enable
+ * @gpio_set_direction: Since controllers may need different configurations
+ *	depending on whether the GPIO is configured as input or output,
+ *	a direction selector function may be implemented as a backing
+ *	to the GPIO controllers that need pin muxing.
  */
 struct pinmux_ops {
 	int (*request) (struct pinctrl_dev *pctldev, unsigned offset);
@@ -73,11 +79,20 @@ struct pinmux_ops {
 	int (*gpio_request_enable) (struct pinctrl_dev *pctldev,
 				    struct pinctrl_gpio_range *range,
 				    unsigned offset);
+	void (*gpio_disable_free) (struct pinctrl_dev *pctldev,
+				   struct pinctrl_gpio_range *range,
+				   unsigned offset);
+	int (*gpio_set_direction) (struct pinctrl_dev *pctldev,
+				   struct pinctrl_gpio_range *range,
+				   unsigned offset,
+				   bool input);
 };
 
 /* External interface to pinmux */
 extern int pinmux_request_gpio(unsigned gpio);
 extern void pinmux_free_gpio(unsigned gpio);
+extern int pinmux_gpio_direction_input(unsigned gpio);
+extern int pinmux_gpio_direction_output(unsigned gpio);
 extern struct pinmux * __must_check pinmux_get(struct device *dev, const char *name);
 extern void pinmux_put(struct pinmux *pmx);
 extern int pinmux_enable(struct pinmux *pmx);
@@ -94,6 +109,16 @@ static inline void pinmux_free_gpio(unsigned gpio)
 {
 }
 
+static inline int pinmux_gpio_direction_input(unsigned gpio)
+{
+	return 0;
+}
+
+static inline int pinmux_gpio_direction_output(unsigned gpio)
+{
+	return 0;
+}
+
 static inline struct pinmux * __must_check pinmux_get(struct device *dev, const char *name)
 {
 	return NULL;
diff --git a/include/linux/platform_data/macb.h b/include/linux/platform_data/macb.h
new file mode 100644
index 000000000000..b081c7245ec8
--- /dev/null
+++ b/include/linux/platform_data/macb.h
@@ -0,0 +1,17 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+#ifndef __MACB_PDATA_H__
+#define __MACB_PDATA_H__
+
+struct macb_platform_data {
+	u32		phy_mask;
+	int		phy_irq_pin;	/* PHY IRQ */
+	u8		is_rmii;	/* using RMII interface? */
+};
+
+#endif /* __MACB_PDATA_H__ */
diff --git a/include/linux/platform_data/mv_usb.h b/include/linux/platform_data/mv_usb.h
index e9d9149ddf38..d94804aca764 100644
--- a/include/linux/platform_data/mv_usb.h
+++ b/include/linux/platform_data/mv_usb.h
@@ -42,9 +42,23 @@ struct mv_usb_platform_data {
 	/* only valid for HCD. OTG or Host only*/
 	unsigned int		mode;
 
-	int     (*phy_init)(unsigned int regbase);
-	void    (*phy_deinit)(unsigned int regbase);
+	/* This flag is used for that needs id pin checked by otg */
+	unsigned int    disable_otg_clock_gating:1;
+	/* Force a_bus_req to be asserted */
+	 unsigned int    otg_force_a_bus_req:1;
+
+	int	(*phy_init)(void __iomem *regbase);
+	void	(*phy_deinit)(void __iomem *regbase);
 	int	(*set_vbus)(unsigned int vbus);
+	int     (*private_init)(void __iomem *opregs, void __iomem *phyregs);
 };
 
+#ifndef CONFIG_HAVE_CLK
+/* Dummy stub for clk framework */
+#define clk_get(dev, id)       NULL
+#define clk_put(clock)         do {} while (0)
+#define clk_enable(clock)      do {} while (0)
+#define clk_disable(clock)     do {} while (0)
+#endif
+
 #endif
diff --git a/include/linux/platform_data/s3c-hsudc.h b/include/linux/platform_data/s3c-hsudc.h
new file mode 100644
index 000000000000..6fa109339bf9
--- /dev/null
+++ b/include/linux/platform_data/s3c-hsudc.h
@@ -0,0 +1,34 @@
+/*
+ * S3C24XX USB 2.0 High-speed USB controller gadget driver
+ *
+ * Copyright (c) 2010 Samsung Electronics Co., Ltd.
+ *		http://www.samsung.com/
+ *
+ * The S3C24XX USB 2.0 high-speed USB controller supports upto 9 endpoints.
+ * Each endpoint can be configured as either in or out endpoint. Endpoints
+ * can be configured for Bulk or Interrupt transfer mode.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+*/
+
+#ifndef __LINUX_USB_S3C_HSUDC_H
+#define __LINUX_USB_S3C_HSUDC_H
+
+/**
+ * s3c24xx_hsudc_platdata - Platform data for USB High-Speed gadget controller.
+ * @epnum: Number of endpoints to be instantiated by the controller driver.
+ * @gpio_init: Platform specific USB related GPIO initialization.
+ * @gpio_uninit: Platform specific USB releted GPIO uninitialzation.
+ *
+ * Representation of platform data for the S3C24XX USB 2.0 High Speed gadget
+ * controllers.
+ */
+struct s3c24xx_hsudc_platdata {
+	unsigned int	epnum;
+	void		(*gpio_init)(void);
+	void		(*gpio_uninit)(void);
+};
+
+#endif	/* __LINUX_USB_S3C_HSUDC_H */
diff --git a/include/linux/proc_fs.h b/include/linux/proc_fs.h
index 6d9e575519cc..85c507306239 100644
--- a/include/linux/proc_fs.h
+++ b/include/linux/proc_fs.h
@@ -253,7 +253,7 @@ extern const struct proc_ns_operations utsns_operations;
 extern const struct proc_ns_operations ipcns_operations;
 
 union proc_op {
-	int (*proc_get_link)(struct inode *, struct path *);
+	int (*proc_get_link)(struct dentry *, struct path *);
 	int (*proc_read)(struct task_struct *task, char *page);
 	int (*proc_show)(struct seq_file *m,
 		struct pid_namespace *ns, struct pid *pid,
diff --git a/include/linux/regulator/consumer.h b/include/linux/regulator/consumer.h
index f7756d146c61..f2698a0edfc4 100644
--- a/include/linux/regulator/consumer.h
+++ b/include/linux/regulator/consumer.h
@@ -149,6 +149,8 @@ int regulator_bulk_enable(int num_consumers,
 			  struct regulator_bulk_data *consumers);
 int regulator_bulk_disable(int num_consumers,
 			   struct regulator_bulk_data *consumers);
+int regulator_bulk_force_disable(int num_consumers,
+			   struct regulator_bulk_data *consumers);
 void regulator_bulk_free(int num_consumers,
 			 struct regulator_bulk_data *consumers);
 
@@ -212,6 +214,11 @@ static inline int regulator_disable(struct regulator *regulator)
 	return 0;
 }
 
+static inline int regulator_force_disable(struct regulator *regulator)
+{
+	return 0;
+}
+
 static inline int regulator_disable_deferred(struct regulator *regulator,
 					     int ms)
 {
@@ -242,6 +249,12 @@ static inline int regulator_bulk_disable(int num_consumers,
 	return 0;
 }
 
+static inline int regulator_bulk_force_disable(int num_consumers,
+					struct regulator_bulk_data *consumers)
+{
+	return 0;
+}
+
 static inline void regulator_bulk_free(int num_consumers,
 				       struct regulator_bulk_data *consumers)
 {
diff --git a/include/linux/regulator/driver.h b/include/linux/regulator/driver.h
index 52c89ae32f64..4214b9a9d1c9 100644
--- a/include/linux/regulator/driver.h
+++ b/include/linux/regulator/driver.h
@@ -154,6 +154,7 @@ enum regulator_type {
  * this type.
  *
  * @name: Identifying name for the regulator.
+ * @supply_name: Identifying the regulator supply
  * @id: Numerical identifier for the regulator.
  * @n_voltages: Number of selectors available for ops.list_voltage().
  * @ops: Regulator operations table.
@@ -163,6 +164,7 @@ enum regulator_type {
  */
 struct regulator_desc {
 	const char *name;
+	const char *supply_name;
 	int id;
 	unsigned n_voltages;
 	struct regulator_ops *ops;
@@ -212,7 +214,7 @@ struct regulator_dev {
 
 struct regulator_dev *regulator_register(struct regulator_desc *regulator_desc,
 	struct device *dev, const struct regulator_init_data *init_data,
-	void *driver_data);
+	void *driver_data, struct device_node *of_node);
 void regulator_unregister(struct regulator_dev *rdev);
 
 int regulator_notifier_call_chain(struct regulator_dev *rdev,
diff --git a/include/linux/regulator/of_regulator.h b/include/linux/regulator/of_regulator.h
new file mode 100644
index 000000000000..769704f296e5
--- /dev/null
+++ b/include/linux/regulator/of_regulator.h
@@ -0,0 +1,22 @@
+/*
+ * OpenFirmware regulator support routines
+ *
+ */
+
+#ifndef __LINUX_OF_REG_H
+#define __LINUX_OF_REG_H
+
+#if defined(CONFIG_OF)
+extern struct regulator_init_data
+	*of_get_regulator_init_data(struct device *dev,
+				    struct device_node *node);
+#else
+static inline struct regulator_init_data
+	*of_get_regulator_init_data(struct device *dev,
+				    struct device_node *node)
+{
+	return NULL;
+}
+#endif /* CONFIG_OF */
+
+#endif /* __LINUX_OF_REG_H */
diff --git a/include/linux/rmap.h b/include/linux/rmap.h
index 2148b122779b..1afb9954bbf1 100644
--- a/include/linux/rmap.h
+++ b/include/linux/rmap.h
@@ -120,6 +120,7 @@ void anon_vma_init(void);	/* create anon_vma_cachep */
 int  anon_vma_prepare(struct vm_area_struct *);
 void unlink_anon_vmas(struct vm_area_struct *);
 int anon_vma_clone(struct vm_area_struct *, struct vm_area_struct *);
+void anon_vma_moveto_tail(struct vm_area_struct *);
 int anon_vma_fork(struct vm_area_struct *, struct vm_area_struct *);
 void __anon_vma_link(struct vm_area_struct *);
 
diff --git a/include/linux/sched.h b/include/linux/sched.h
index ad93e1ec8c65..21cd0303af51 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -637,13 +637,15 @@ struct signal_struct {
 #endif
 #ifdef CONFIG_CGROUPS
 	/*
-	 * The threadgroup_fork_lock prevents threads from forking with
-	 * CLONE_THREAD while held for writing. Use this for fork-sensitive
-	 * threadgroup-wide operations. It's taken for reading in fork.c in
-	 * copy_process().
-	 * Currently only needed write-side by cgroups.
+	 * group_rwsem prevents new tasks from entering the threadgroup and
+	 * member tasks from exiting,a more specifically, setting of
+	 * PF_EXITING.  fork and exit paths are protected with this rwsem
+	 * using threadgroup_change_begin/end().  Users which require
+	 * threadgroup to remain stable should use threadgroup_[un]lock()
+	 * which also takes care of exec path.  Currently, cgroup is the
+	 * only user.
 	 */
-	struct rw_semaphore threadgroup_fork_lock;
+	struct rw_semaphore group_rwsem;
 #endif
 
 	int oom_adj;		/* OOM kill score adjustment (bit shift) */
@@ -1542,6 +1544,7 @@ struct task_struct {
 	 */
 	int nr_dirtied;
 	int nr_dirtied_pause;
+	unsigned long dirty_paused_when; /* start of a write-and-pause period */
 
 #ifdef CONFIG_LATENCYTOP
 	int latency_record_count;
@@ -2394,29 +2397,62 @@ static inline void unlock_task_sighand(struct task_struct *tsk,
 	spin_unlock_irqrestore(&tsk->sighand->siglock, *flags);
 }
 
-/* See the declaration of threadgroup_fork_lock in signal_struct. */
 #ifdef CONFIG_CGROUPS
-static inline void threadgroup_fork_read_lock(struct task_struct *tsk)
+static inline void threadgroup_change_begin(struct task_struct *tsk)
 {
-	down_read(&tsk->signal->threadgroup_fork_lock);
+	down_read(&tsk->signal->group_rwsem);
 }
-static inline void threadgroup_fork_read_unlock(struct task_struct *tsk)
+static inline void threadgroup_change_end(struct task_struct *tsk)
 {
-	up_read(&tsk->signal->threadgroup_fork_lock);
+	up_read(&tsk->signal->group_rwsem);
 }
-static inline void threadgroup_fork_write_lock(struct task_struct *tsk)
+
+/**
+ * threadgroup_lock - lock threadgroup
+ * @tsk: member task of the threadgroup to lock
+ *
+ * Lock the threadgroup @tsk belongs to.  No new task is allowed to enter
+ * and member tasks aren't allowed to exit (as indicated by PF_EXITING) or
+ * perform exec.  This is useful for cases where the threadgroup needs to
+ * stay stable across blockable operations.
+ *
+ * fork and exit paths explicitly call threadgroup_change_{begin|end}() for
+ * synchronization.  While held, no new task will be added to threadgroup
+ * and no existing live task will have its PF_EXITING set.
+ *
+ * During exec, a task goes and puts its thread group through unusual
+ * changes.  After de-threading, exclusive access is assumed to resources
+ * which are usually shared by tasks in the same group - e.g. sighand may
+ * be replaced with a new one.  Also, the exec'ing task takes over group
+ * leader role including its pid.  Exclude these changes while locked by
+ * grabbing cred_guard_mutex which is used to synchronize exec path.
+ */
+static inline void threadgroup_lock(struct task_struct *tsk)
 {
-	down_write(&tsk->signal->threadgroup_fork_lock);
+	/*
+	 * exec uses exit for de-threading nesting group_rwsem inside
+	 * cred_guard_mutex. Grab cred_guard_mutex first.
+	 */
+	mutex_lock(&tsk->signal->cred_guard_mutex);
+	down_write(&tsk->signal->group_rwsem);
 }
-static inline void threadgroup_fork_write_unlock(struct task_struct *tsk)
+
+/**
+ * threadgroup_unlock - unlock threadgroup
+ * @tsk: member task of the threadgroup to unlock
+ *
+ * Reverse threadgroup_lock().
+ */
+static inline void threadgroup_unlock(struct task_struct *tsk)
 {
-	up_write(&tsk->signal->threadgroup_fork_lock);
+	up_write(&tsk->signal->group_rwsem);
+	mutex_unlock(&tsk->signal->cred_guard_mutex);
 }
 #else
-static inline void threadgroup_fork_read_lock(struct task_struct *tsk) {}
-static inline void threadgroup_fork_read_unlock(struct task_struct *tsk) {}
-static inline void threadgroup_fork_write_lock(struct task_struct *tsk) {}
-static inline void threadgroup_fork_write_unlock(struct task_struct *tsk) {}
+static inline void threadgroup_change_begin(struct task_struct *tsk) {}
+static inline void threadgroup_change_end(struct task_struct *tsk) {}
+static inline void threadgroup_lock(struct task_struct *tsk) {}
+static inline void threadgroup_unlock(struct task_struct *tsk) {}
 #endif
 
 #ifndef __HAVE_THREAD_FUNCTIONS
diff --git a/include/linux/serial_8250.h b/include/linux/serial_8250.h
index 1f05bbeac01e..8f012f8ac8e9 100644
--- a/include/linux/serial_8250.h
+++ b/include/linux/serial_8250.h
@@ -66,6 +66,7 @@ enum {
  * dependent on the 8250 driver.
  */
 struct uart_port;
+struct uart_8250_port;
 
 int serial8250_register_port(struct uart_port *);
 void serial8250_unregister_port(int line);
@@ -81,7 +82,11 @@ extern void serial8250_do_set_termios(struct uart_port *port,
 		struct ktermios *termios, struct ktermios *old);
 extern void serial8250_do_pm(struct uart_port *port, unsigned int state,
 			     unsigned int oldstate);
+extern int fsl8250_handle_irq(struct uart_port *port);
 int serial8250_handle_irq(struct uart_port *port, unsigned int iir);
+unsigned char serial8250_rx_chars(struct uart_8250_port *up, unsigned char lsr);
+void serial8250_tx_chars(struct uart_8250_port *up);
+unsigned int serial8250_modem_status(struct uart_8250_port *up);
 
 extern void serial8250_set_isa_configurator(void (*v)
 					(int port, struct uart_port *up,
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index eadf33d0abba..b67305e3ad57 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -351,6 +351,7 @@ struct uart_port {
 #define UPF_CONS_FLOW		((__force upf_t) (1 << 23))
 #define UPF_SHARE_IRQ		((__force upf_t) (1 << 24))
 #define UPF_EXAR_EFR		((__force upf_t) (1 << 25))
+#define UPF_IIR_ONCE		((__force upf_t) (1 << 26))
 /* The exact UART type is known and should not be probed.  */
 #define UPF_FIXED_TYPE		((__force upf_t) (1 << 27))
 #define UPF_BOOT_AUTOCONF	((__force upf_t) (1 << 28))
@@ -483,10 +484,19 @@ static inline int uart_tx_stopped(struct uart_port *port)
 /*
  * The following are helper functions for the low level drivers.
  */
+
+extern void uart_handle_dcd_change(struct uart_port *uport,
+		unsigned int status);
+extern void uart_handle_cts_change(struct uart_port *uport,
+		unsigned int status);
+
+extern void uart_insert_char(struct uart_port *port, unsigned int status,
+		 unsigned int overrun, unsigned int ch, unsigned int flag);
+
+#ifdef SUPPORT_SYSRQ
 static inline int
 uart_handle_sysrq_char(struct uart_port *port, unsigned int ch)
 {
-#ifdef SUPPORT_SYSRQ
 	if (port->sysrq) {
 		if (ch && time_before(jiffies, port->sysrq)) {
 			handle_sysrq(ch);
@@ -495,11 +505,10 @@ uart_handle_sysrq_char(struct uart_port *port, unsigned int ch)
 		}
 		port->sysrq = 0;
 	}
-#endif
 	return 0;
 }
-#ifndef SUPPORT_SYSRQ
-#define uart_handle_sysrq_char(port,ch) uart_handle_sysrq_char(port, 0)
+#else
+#define uart_handle_sysrq_char(port,ch) ({ (void)port; 0; })
 #endif
 
 /*
@@ -522,89 +531,6 @@ static inline int uart_handle_break(struct uart_port *port)
 	return 0;
 }
 
-/**
- *	uart_handle_dcd_change - handle a change of carrier detect state
- *	@uport: uart_port structure for the open port
- *	@status: new carrier detect status, nonzero if active
- */
-static inline void
-uart_handle_dcd_change(struct uart_port *uport, unsigned int status)
-{
-	struct uart_state *state = uport->state;
-	struct tty_port *port = &state->port;
-	struct tty_ldisc *ld = tty_ldisc_ref(port->tty);
-	struct pps_event_time ts;
-
-	if (ld && ld->ops->dcd_change)
-		pps_get_ts(&ts);
-
-	uport->icount.dcd++;
-#ifdef CONFIG_HARD_PPS
-	if ((uport->flags & UPF_HARDPPS_CD) && status)
-		hardpps();
-#endif
-
-	if (port->flags & ASYNC_CHECK_CD) {
-		if (status)
-			wake_up_interruptible(&port->open_wait);
-		else if (port->tty)
-			tty_hangup(port->tty);
-	}
-
-	if (ld && ld->ops->dcd_change)
-		ld->ops->dcd_change(port->tty, status, &ts);
-	if (ld)
-		tty_ldisc_deref(ld);
-}
-
-/**
- *	uart_handle_cts_change - handle a change of clear-to-send state
- *	@uport: uart_port structure for the open port
- *	@status: new clear to send status, nonzero if active
- */
-static inline void
-uart_handle_cts_change(struct uart_port *uport, unsigned int status)
-{
-	struct tty_port *port = &uport->state->port;
-	struct tty_struct *tty = port->tty;
-
-	uport->icount.cts++;
-
-	if (port->flags & ASYNC_CTS_FLOW) {
-		if (tty->hw_stopped) {
-			if (status) {
-				tty->hw_stopped = 0;
-				uport->ops->start_tx(uport);
-				uart_write_wakeup(uport);
-			}
-		} else {
-			if (!status) {
-				tty->hw_stopped = 1;
-				uport->ops->stop_tx(uport);
-			}
-		}
-	}
-}
-
-#include <linux/tty_flip.h>
-
-static inline void
-uart_insert_char(struct uart_port *port, unsigned int status,
-		 unsigned int overrun, unsigned int ch, unsigned int flag)
-{
-	struct tty_struct *tty = port->state->port.tty;
-
-	if ((status & port->ignore_status_mask & ~overrun) == 0)
-		tty_insert_flip_char(tty, ch, flag);
-
-	/*
-	 * Overrun is special.  Since it's reported immediately,
-	 * it doesn't affect the current character.
-	 */
-	if (status & ~port->ignore_status_mask & overrun)
-		tty_insert_flip_char(tty, 0, TTY_OVERRUN);
-}
-
 /*
  *	UART_ENABLE_MS - determine if port should enable modem status irqs
  */
diff --git a/include/linux/signal.h b/include/linux/signal.h
index a822300a253b..7987ce74874b 100644
--- a/include/linux/signal.h
+++ b/include/linux/signal.h
@@ -254,6 +254,7 @@ extern void set_current_blocked(const sigset_t *);
 extern int show_unhandled_signals;
 
 extern int get_signal_to_deliver(siginfo_t *info, struct k_sigaction *return_ka, struct pt_regs *regs, void *cookie);
+extern void block_sigmask(struct k_sigaction *ka, int signr);
 extern void exit_signals(struct task_struct *tsk);
 
 extern struct kmem_cache *sighand_cachep;
diff --git a/include/linux/slab_def.h b/include/linux/slab_def.h
index d00e0bacda93..fbd1117fdfde 100644
--- a/include/linux/slab_def.h
+++ b/include/linux/slab_def.h
@@ -15,8 +15,6 @@
 #include <asm/cache.h>		/* kmalloc_sizes.h needs L1_CACHE_BYTES */
 #include <linux/compiler.h>
 
-#include <trace/events/kmem.h>
-
 /*
  * struct kmem_cache
  *
diff --git a/include/linux/sunrpc/auth.h b/include/linux/sunrpc/auth.h
index febc4dbec2ca..7874a8a56638 100644
--- a/include/linux/sunrpc/auth.h
+++ b/include/linux/sunrpc/auth.h
@@ -26,6 +26,7 @@ struct auth_cred {
 	uid_t	uid;
 	gid_t	gid;
 	struct group_info *group_info;
+	const char *principal;
 	unsigned char machine_cred : 1;
 };
 
@@ -127,7 +128,7 @@ void			rpc_destroy_generic_auth(void);
 void 			rpc_destroy_authunix(void);
 
 struct rpc_cred *	rpc_lookup_cred(void);
-struct rpc_cred *	rpc_lookup_machine_cred(void);
+struct rpc_cred *	rpc_lookup_machine_cred(const char *service_name);
 int			rpcauth_register(const struct rpc_authops *);
 int			rpcauth_unregister(const struct rpc_authops *);
 struct rpc_auth *	rpcauth_create(rpc_authflavor_t, struct rpc_clnt *);
diff --git a/include/linux/sunrpc/auth_gss.h b/include/linux/sunrpc/auth_gss.h
index 8eee9dbbfe7a..f1cfd4c85cd0 100644
--- a/include/linux/sunrpc/auth_gss.h
+++ b/include/linux/sunrpc/auth_gss.h
@@ -82,8 +82,8 @@ struct gss_cred {
 	enum rpc_gss_svc	gc_service;
 	struct gss_cl_ctx __rcu	*gc_ctx;
 	struct gss_upcall_msg	*gc_upcall;
+	const char		*gc_principal;
 	unsigned long		gc_upcall_timestamp;
-	unsigned char		gc_machine_cred : 1;
 };
 
 #endif /* __KERNEL__ */
diff --git a/include/linux/sunrpc/xdr.h b/include/linux/sunrpc/xdr.h
index a20970ef9e4e..af70af333546 100644
--- a/include/linux/sunrpc/xdr.h
+++ b/include/linux/sunrpc/xdr.h
@@ -191,6 +191,8 @@ extern int xdr_decode_array2(struct xdr_buf *buf, unsigned int base,
 			     struct xdr_array2_desc *desc);
 extern int xdr_encode_array2(struct xdr_buf *buf, unsigned int base,
 			     struct xdr_array2_desc *desc);
+extern void _copy_from_pages(char *p, struct page **pages, size_t pgbase,
+			     size_t len);
 
 /*
  * Provide some simple tools for XDR buffer overflow-checking etc.
diff --git a/include/linux/swap.h b/include/linux/swap.h
index 1e22e126d2ac..06061a7f8e69 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -207,6 +207,7 @@ struct swap_list_t {
 /* linux/mm/page_alloc.c */
 extern unsigned long totalram_pages;
 extern unsigned long totalreserve_pages;
+extern unsigned long dirty_balance_reserve;
 extern unsigned int nr_free_buffer_pages(void);
 extern unsigned int nr_free_pagecache_pages(void);
 
diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h
index 445702c60d04..e872526fdc5f 100644
--- a/include/linux/swiotlb.h
+++ b/include/linux/swiotlb.h
@@ -24,7 +24,7 @@ extern int swiotlb_force;
 
 extern void swiotlb_init(int verbose);
 extern void swiotlb_init_with_tbl(char *tlb, unsigned long nslabs, int verbose);
-extern unsigned long swioltb_nr_tbl(void);
+extern unsigned long swiotlb_nr_tbl(void);
 
 /*
  * Enumeration for sync targets
diff --git a/include/linux/ucb1400.h b/include/linux/ucb1400.h
index 5c75153f9441..d21b33c4c6ca 100644
--- a/include/linux/ucb1400.h
+++ b/include/linux/ucb1400.h
@@ -96,13 +96,11 @@ struct ucb1400_gpio {
 
 struct ucb1400_ts {
 	struct input_dev	*ts_idev;
-	struct task_struct	*ts_task;
 	int			id;
-	wait_queue_head_t	ts_wait;
-	unsigned int		ts_restart:1;
 	int			irq;
-	unsigned int		irq_pending;	/* not bit field shared */
 	struct snd_ac97		*ac97;
+	wait_queue_head_t	ts_wait;
+	bool			stopped;
 };
 
 struct ucb1400 {
diff --git a/include/linux/usb.h b/include/linux/usb.h
index 7f8d4d61ca47..27a4e16d2bf1 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -1233,6 +1233,7 @@ struct urb {
 	void *transfer_buffer;		/* (in) associated data buffer */
 	dma_addr_t transfer_dma;	/* (in) dma addr for transfer_buffer */
 	struct scatterlist *sg;		/* (in) scatter gather buffer list */
+	int num_mapped_sgs;		/* (internal) mapped sg entries */
 	int num_sgs;			/* (in) number of entries in the sg list */
 	u32 transfer_buffer_length;	/* (in) data buffer length */
 	u32 actual_length;		/* (return) actual transfer length */
@@ -1610,6 +1611,19 @@ usb_maxpacket(struct usb_device *udev, int pipe, int is_out)
 
 /* ----------------------------------------------------------------------- */
 
+/* translate USB error codes to codes user space understands */
+static inline int usb_translate_errors(int error_code)
+{
+	switch (error_code) {
+	case 0:
+	case -ENOMEM:
+	case -ENODEV:
+		return error_code;
+	default:
+		return -EIO;
+	}
+}
+
 /* Events from the usb core */
 #define USB_DEVICE_ADD		0x0001
 #define USB_DEVICE_REMOVE	0x0002
diff --git a/include/linux/usb/ch11.h b/include/linux/usb/ch11.h
index 4ebaf0824179..31fdb4c6ee3d 100644
--- a/include/linux/usb/ch11.h
+++ b/include/linux/usb/ch11.h
@@ -26,7 +26,6 @@
 #define HUB_RESET_TT		9
 #define HUB_GET_TT_STATE	10
 #define HUB_STOP_TT		11
-#define HUB_SET_DEPTH		12
 
 /*
  * Hub class additional requests defined by USB 3.0 spec
@@ -165,11 +164,20 @@ struct usb_port_status {
  * wHubCharacteristics (masks)
  * See USB 2.0 spec Table 11-13, offset 3
  */
-#define HUB_CHAR_LPSM		0x0003 /* D1 .. D0 */
-#define HUB_CHAR_COMPOUND	0x0004 /* D2       */
-#define HUB_CHAR_OCPM		0x0018 /* D4 .. D3 */
-#define HUB_CHAR_TTTT           0x0060 /* D6 .. D5 */
-#define HUB_CHAR_PORTIND        0x0080 /* D7       */
+#define HUB_CHAR_LPSM		0x0003 /* Logical Power Switching Mode mask */
+#define HUB_CHAR_COMMON_LPSM	0x0000 /* All ports power control at once */
+#define HUB_CHAR_INDV_PORT_LPSM	0x0001 /* per-port power control */
+#define HUB_CHAR_NO_LPSM	0x0002 /* no power switching */
+
+#define HUB_CHAR_COMPOUND	0x0004 /* hub is part of a compound device */
+
+#define HUB_CHAR_OCPM		0x0018 /* Over-Current Protection Mode mask */
+#define HUB_CHAR_COMMON_OCPM	0x0000 /* All ports Over-Current reporting */
+#define HUB_CHAR_INDV_PORT_OCPM	0x0008 /* per-port Over-current reporting */
+#define HUB_CHAR_NO_OCPM	0x0010 /* No Over-current Protection support */
+
+#define HUB_CHAR_TTTT		0x0060 /* TT Think Time mask */
+#define HUB_CHAR_PORTIND	0x0080 /* per-port indicators (LEDs) */
 
 struct usb_hub_status {
 	__le16 wHubStatus;
@@ -198,6 +206,17 @@ struct usb_hub_status {
 #define USB_DT_HUB_NONVAR_SIZE		7
 #define USB_DT_SS_HUB_SIZE              12
 
+/*
+ * Hub Device descriptor
+ * USB Hub class device protocols
+ */
+
+#define USB_HUB_PR_FS		0 /* Full speed hub */
+#define USB_HUB_PR_HS_NO_TT	0 /* Hi-speed hub without TT */
+#define USB_HUB_PR_HS_SINGLE_TT	1 /* Hi-speed hub with single TT */
+#define USB_HUB_PR_HS_MULTI_TT	2 /* Hi-speed hub with multiple TT */
+#define USB_HUB_PR_SS		3 /* Super speed hub */
+
 struct usb_hub_descriptor {
 	__u8  bDescLength;
 	__u8  bDescriptorType;
diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h
index d5da6c68c250..61b29057b054 100644
--- a/include/linux/usb/ch9.h
+++ b/include/linux/usb/ch9.h
@@ -605,8 +605,26 @@ struct usb_ss_ep_comp_descriptor {
 } __attribute__ ((packed));
 
 #define USB_DT_SS_EP_COMP_SIZE		6
+
 /* Bits 4:0 of bmAttributes if this is a bulk endpoint */
-#define USB_SS_MAX_STREAMS(p)		(1 << ((p) & 0x1f))
+static inline int
+usb_ss_max_streams(const struct usb_ss_ep_comp_descriptor *comp)
+{
+	int		max_streams;
+
+	if (!comp)
+		return 0;
+
+	max_streams = comp->bmAttributes & 0x1f;
+
+	if (!max_streams)
+		return 0;
+
+	max_streams = 1 << max_streams;
+
+	return max_streams;
+}
+
 /* Bits 1:0 of bmAttributes if this is an isoc endpoint */
 #define USB_SS_MULT(p)			(1 + ((p) & 0x3))
 
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index 1d3a67523ffc..da653b5c7134 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -20,6 +20,7 @@
 #include <linux/init.h>
 #include <linux/list.h>
 #include <linux/slab.h>
+#include <linux/scatterlist.h>
 #include <linux/types.h>
 #include <linux/usb/ch9.h>
 
@@ -32,6 +33,9 @@ struct usb_ep;
  * @dma: DMA address corresponding to 'buf'.  If you don't set this
  *	field, and the usb controller needs one, it is responsible
  *	for mapping and unmapping the buffer.
+ * @sg: a scatterlist for SG-capable controllers.
+ * @num_sgs: number of SG entries
+ * @num_mapped_sgs: number of SG entries mapped to DMA (internal)
  * @length: Length of that data
  * @stream_id: The stream id, when USB3.0 bulk streams are being used
  * @no_interrupt: If true, hints that no completion irq is needed.
@@ -88,6 +92,10 @@ struct usb_request {
 	unsigned		length;
 	dma_addr_t		dma;
 
+	struct scatterlist	*sg;
+	unsigned		num_sgs;
+	unsigned		num_mapped_sgs;
+
 	unsigned		stream_id:16;
 	unsigned		no_interrupt:1;
 	unsigned		zero:1;
@@ -164,7 +172,7 @@ struct usb_ep {
 	unsigned		maxpacket:16;
 	unsigned		max_streams:16;
 	unsigned		mult:2;
-	unsigned		maxburst:4;
+	unsigned		maxburst:5;
 	u8			address;
 	const struct usb_endpoint_descriptor	*desc;
 	const struct usb_ss_ep_comp_descriptor	*comp_desc;
@@ -477,8 +485,9 @@ struct usb_gadget_ops {
  *	driver setup() requests
  * @ep_list: List of other endpoints supported by the device.
  * @speed: Speed of current connection to USB host.
- * @is_dualspeed: True if the controller supports both high and full speed
- *	operation.  If it does, the gadget driver must also support both.
+ * @max_speed: Maximal speed the UDC can handle.  UDC must support this
+ *      and all slower speeds.
+ * @sg_supported: true if we can handle scatter-gather
  * @is_otg: True if the USB device port uses a Mini-AB jack, so that the
  *	gadget driver must provide a USB OTG descriptor.
  * @is_a_peripheral: False unless is_otg, the "A" end of a USB cable
@@ -518,7 +527,8 @@ struct usb_gadget {
 	struct usb_ep			*ep0;
 	struct list_head		ep_list;	/* of usb_ep */
 	enum usb_device_speed		speed;
-	unsigned			is_dualspeed:1;
+	enum usb_device_speed		max_speed;
+	unsigned			sg_supported:1;
 	unsigned			is_otg:1;
 	unsigned			is_a_peripheral:1;
 	unsigned			b_hnp_enable:1;
@@ -549,7 +559,7 @@ static inline struct usb_gadget *dev_to_usb_gadget(struct device *dev)
 static inline int gadget_is_dualspeed(struct usb_gadget *g)
 {
 #ifdef CONFIG_USB_GADGET_DUALSPEED
-	/* runtime test would check "g->is_dualspeed" ... that might be
+	/* runtime test would check "g->max_speed" ... that might be
 	 * useful to work around hardware bugs, but is mostly pointless
 	 */
 	return 1;
@@ -567,7 +577,7 @@ static inline int gadget_is_superspeed(struct usb_gadget *g)
 {
 #ifdef CONFIG_USB_GADGET_SUPERSPEED
 	/*
-	 * runtime test would check "g->is_superspeed" ... that might be
+	 * runtime test would check "g->max_speed" ... that might be
 	 * useful to work around hardware bugs, but is mostly pointless
 	 */
 	return 1;
@@ -760,7 +770,7 @@ static inline int usb_gadget_disconnect(struct usb_gadget *gadget)
 /**
  * struct usb_gadget_driver - driver for usb 'slave' devices
  * @function: String describing the gadget's function
- * @speed: Highest speed the driver handles.
+ * @max_speed: Highest speed the driver handles.
  * @setup: Invoked for ep0 control requests that aren't handled by
  *	the hardware level driver. Most calls must be handled by
  *	the gadget driver, including descriptor and configuration
@@ -824,7 +834,7 @@ static inline int usb_gadget_disconnect(struct usb_gadget *gadget)
  */
 struct usb_gadget_driver {
 	char			*function;
-	enum usb_device_speed	speed;
+	enum usb_device_speed	max_speed;
 	void			(*unbind)(struct usb_gadget *);
 	int			(*setup)(struct usb_gadget *,
 					const struct usb_ctrlrequest *);
diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h
index 03354d557b79..b2f62f3a32af 100644
--- a/include/linux/usb/hcd.h
+++ b/include/linux/usb/hcd.h
@@ -99,7 +99,6 @@ struct usb_hcd {
 	 */
 	unsigned long		flags;
 #define HCD_FLAG_HW_ACCESSIBLE		0	/* at full power */
-#define HCD_FLAG_SAW_IRQ		1
 #define HCD_FLAG_POLL_RH		2	/* poll for rh status? */
 #define HCD_FLAG_POLL_PENDING		3	/* status has changed? */
 #define HCD_FLAG_WAKEUP_PENDING		4	/* root hub is resuming? */
@@ -110,7 +109,6 @@ struct usb_hcd {
 	 * be slightly faster than test_bit().
 	 */
 #define HCD_HW_ACCESSIBLE(hcd)	((hcd)->flags & (1U << HCD_FLAG_HW_ACCESSIBLE))
-#define HCD_SAW_IRQ(hcd)	((hcd)->flags & (1U << HCD_FLAG_SAW_IRQ))
 #define HCD_POLL_RH(hcd)	((hcd)->flags & (1U << HCD_FLAG_POLL_RH))
 #define HCD_POLL_PENDING(hcd)	((hcd)->flags & (1U << HCD_FLAG_POLL_PENDING))
 #define HCD_WAKEUP_PENDING(hcd)	((hcd)->flags & (1U << HCD_FLAG_WAKEUP_PENDING))
diff --git a/include/linux/usb/renesas_usbhs.h b/include/linux/usb/renesas_usbhs.h
index e5a40c318548..0d3f98879256 100644
--- a/include/linux/usb/renesas_usbhs.h
+++ b/include/linux/usb/renesas_usbhs.h
@@ -67,6 +67,14 @@ struct renesas_usbhs_platform_callback {
 	/*
 	 * option:
 	 *
+	 * for board specific clock control
+	 */
+	void (*power_ctrl)(struct platform_device *pdev,
+			   void __iomem *base, int enable);
+
+	/*
+	 * option:
+	 *
 	 * Phy reset for platform
 	 */
 	void (*phy_reset)(struct platform_device *pdev);
@@ -118,7 +126,7 @@ struct renesas_usbhs_driver_param {
 	 *
 	 * delay time from notify_hotplug callback
 	 */
-	int detection_delay;
+	int detection_delay; /* msec */
 
 	/*
 	 * option:
diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h
index b29f70b2ecae..4267a9c717ba 100644
--- a/include/linux/usb/serial.h
+++ b/include/linux/usb/serial.h
@@ -58,11 +58,13 @@ enum port_dev_state {
  * @read_urb: pointer to the bulk in struct urb for this port.
  * @bulk_in_endpointAddress: endpoint address for the bulk in pipe for this
  *	port.
+ * @bulk_in_buffers: pointers to the bulk in buffers for this port
+ * @read_urbs: pointers to the bulk in urbs for this port
+ * @read_urbs_free: status bitmap the for bulk in urbs
  * @bulk_out_buffer: pointer to the bulk out buffer for this port.
  * @bulk_out_size: the size of the bulk_out_buffer, in bytes.
  * @write_urb: pointer to the bulk out struct urb for this port.
  * @write_fifo: kfifo used to buffer outgoing data
- * @write_urb_busy: port`s writing status
  * @bulk_out_buffers: pointers to the bulk out buffers for this port
  * @write_urbs: pointers to the bulk out urbs for this port
  * @write_urbs_free: status bitmap the for bulk out urbs
@@ -99,11 +101,14 @@ struct usb_serial_port {
 	struct urb		*read_urb;
 	__u8			bulk_in_endpointAddress;
 
+	unsigned char		*bulk_in_buffers[2];
+	struct urb		*read_urbs[2];
+	unsigned long		read_urbs_free;
+
 	unsigned char		*bulk_out_buffer;
 	int			bulk_out_size;
 	struct urb		*write_urb;
 	struct kfifo		write_fifo;
-	int			write_urb_busy;
 
 	unsigned char		*bulk_out_buffers[2];
 	struct urb		*write_urbs[2];
@@ -340,7 +345,7 @@ extern void usb_serial_generic_disconnect(struct usb_serial *serial);
 extern void usb_serial_generic_release(struct usb_serial *serial);
 extern int usb_serial_generic_register(int debug);
 extern void usb_serial_generic_deregister(void);
-extern int usb_serial_generic_submit_read_urb(struct usb_serial_port *port,
+extern int usb_serial_generic_submit_read_urbs(struct usb_serial_port *port,
 						 gfp_t mem_flags);
 extern void usb_serial_generic_process_read_urb(struct urb *urb);
 extern int usb_serial_generic_prepare_write_buffer(struct usb_serial_port *port,
diff --git a/include/linux/watchdog.h b/include/linux/watchdog.h
index 111843f88b2a..43ba5b3ce2a3 100644
--- a/include/linux/watchdog.h
+++ b/include/linux/watchdog.h
@@ -53,11 +53,7 @@ struct watchdog_info {
 
 #ifdef __KERNEL__
 
-#ifdef CONFIG_WATCHDOG_NOWAYOUT
-#define WATCHDOG_NOWAYOUT	1
-#else
-#define WATCHDOG_NOWAYOUT	0
-#endif
+#include <linux/bitops.h>
 
 struct watchdog_ops;
 struct watchdog_device;
@@ -122,6 +118,21 @@ struct watchdog_device {
 #define WDOG_NO_WAY_OUT		3	/* Is 'nowayout' feature set ? */
 };
 
+#ifdef CONFIG_WATCHDOG_NOWAYOUT
+#define WATCHDOG_NOWAYOUT		1
+#define WATCHDOG_NOWAYOUT_INIT_STATUS	(1 << WDOG_NO_WAY_OUT)
+#else
+#define WATCHDOG_NOWAYOUT		0
+#define WATCHDOG_NOWAYOUT_INIT_STATUS	0
+#endif
+
+/* Use the following function to set the nowayout feature */
+static inline void watchdog_set_nowayout(struct watchdog_device *wdd, int nowayout)
+{
+	if (nowayout)
+		set_bit(WDOG_NO_WAY_OUT, &wdd->status);
+}
+
 /* Use the following functions to manipulate watchdog driver specific data */
 static inline void watchdog_set_drvdata(struct watchdog_device *wdd, void *data)
 {
diff --git a/include/linux/workqueue.h b/include/linux/workqueue.h
index 0d556deb497b..eb8b9f15f2e0 100644
--- a/include/linux/workqueue.h
+++ b/include/linux/workqueue.h
@@ -297,32 +297,50 @@ extern struct workqueue_struct *system_unbound_wq;
 extern struct workqueue_struct *system_freezable_wq;
 
 extern struct workqueue_struct *
-__alloc_workqueue_key(const char *name, unsigned int flags, int max_active,
-		      struct lock_class_key *key, const char *lock_name);
+__alloc_workqueue_key(const char *fmt, unsigned int flags, int max_active,
+	struct lock_class_key *key, const char *lock_name, ...) __printf(1, 6);
 
+/**
+ * alloc_workqueue - allocate a workqueue
+ * @fmt: printf format for the name of the workqueue
+ * @flags: WQ_* flags
+ * @max_active: max in-flight work items, 0 for default
+ * @args: args for @fmt
+ *
+ * Allocate a workqueue with the specified parameters.  For detailed
+ * information on WQ_* flags, please refer to Documentation/workqueue.txt.
+ *
+ * The __lock_name macro dance is to guarantee that single lock_class_key
+ * doesn't end up with different namesm, which isn't allowed by lockdep.
+ *
+ * RETURNS:
+ * Pointer to the allocated workqueue on success, %NULL on failure.
+ */
 #ifdef CONFIG_LOCKDEP
-#define alloc_workqueue(name, flags, max_active)		\
+#define alloc_workqueue(fmt, flags, max_active, args...)	\
 ({								\
 	static struct lock_class_key __key;			\
 	const char *__lock_name;				\
 								\
-	if (__builtin_constant_p(name))				\
-		__lock_name = (name);				\
+	if (__builtin_constant_p(fmt))				\
+		__lock_name = (fmt);				\
 	else							\
-		__lock_name = #name;				\
+		__lock_name = #fmt;				\
 								\
-	__alloc_workqueue_key((name), (flags), (max_active),	\
-			      &__key, __lock_name);		\
+	__alloc_workqueue_key((fmt), (flags), (max_active),	\
+			      &__key, __lock_name, ##args);	\
 })
 #else
-#define alloc_workqueue(name, flags, max_active)		\
-	__alloc_workqueue_key((name), (flags), (max_active), NULL, NULL)
+#define alloc_workqueue(fmt, flags, max_active, args...)	\
+	__alloc_workqueue_key((fmt), (flags), (max_active),	\
+			      NULL, NULL, ##args)
 #endif
 
 /**
  * alloc_ordered_workqueue - allocate an ordered workqueue
- * @name: name of the workqueue
+ * @fmt: printf format for the name of the workqueue
  * @flags: WQ_* flags (only WQ_FREEZABLE and WQ_MEM_RECLAIM are meaningful)
+ * @args: args for @fmt
  *
  * Allocate an ordered workqueue.  An ordered workqueue executes at
  * most one work item at any given time in the queued order.  They are
@@ -331,11 +349,8 @@ __alloc_workqueue_key(const char *name, unsigned int flags, int max_active,
  * RETURNS:
  * Pointer to the allocated workqueue on success, %NULL on failure.
  */
-static inline struct workqueue_struct *
-alloc_ordered_workqueue(const char *name, unsigned int flags)
-{
-	return alloc_workqueue(name, WQ_UNBOUND | flags, 1);
-}
+#define alloc_ordered_workqueue(fmt, flags, args...)		\
+	alloc_workqueue(fmt, WQ_UNBOUND | (flags), 1, ##args)
 
 #define create_workqueue(name)					\
 	alloc_workqueue((name), WQ_MEM_RECLAIM, 1)
diff --git a/include/linux/writeback.h b/include/linux/writeback.h
index a378c295851f..995b8bf630ac 100644
--- a/include/linux/writeback.h
+++ b/include/linux/writeback.h
@@ -7,6 +7,8 @@
 #include <linux/sched.h>
 #include <linux/fs.h>
 
+DECLARE_PER_CPU(int, dirty_throttle_leaks);
+
 /*
  * The 1/4 region under the global dirty thresh is for smooth dirty throttling:
  *
@@ -23,11 +25,6 @@
 #define DIRTY_SCOPE		8
 #define DIRTY_FULL_SCOPE	(DIRTY_SCOPE / 2)
 
-/*
- * 4MB minimal write chunk size
- */
-#define MIN_WRITEBACK_PAGES	(4096UL >> (PAGE_CACHE_SHIFT - 10))
-
 struct backing_dev_info;
 
 /*
@@ -124,6 +121,7 @@ void laptop_mode_timer_fn(unsigned long data);
 static inline void laptop_sync_completion(void) { }
 #endif
 void throttle_vm_writeout(gfp_t gfp_mask);
+bool zone_dirty_ok(struct zone *zone);
 
 extern unsigned long global_dirty_limit;
 
@@ -138,8 +136,6 @@ extern int vm_highmem_is_dirtyable;
 extern int block_dump;
 extern int laptop_mode;
 
-extern unsigned long determine_dirtyable_memory(void);
-
 extern int dirty_background_ratio_handler(struct ctl_table *table, int write,
 		void __user *buffer, size_t *lenp,
 		loff_t *ppos);
@@ -195,6 +191,8 @@ void writeback_set_ratelimit(void);
 void tag_pages_for_writeback(struct address_space *mapping,
 			     pgoff_t start, pgoff_t end);
 
+void account_page_redirty(struct page *page);
+
 /* pdflush.c */
 extern int nr_pdflush_threads;	/* Global so it can be exported to sysctl
 				   read-only. */
diff --git a/include/media/davinci/vpif_types.h b/include/media/davinci/vpif_types.h
new file mode 100644
index 000000000000..9929b05cff3a
--- /dev/null
+++ b/include/media/davinci/vpif_types.h
@@ -0,0 +1,71 @@
+/*
+ * Copyright (C) 2011 Texas Instruments Inc
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation version 2.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+#ifndef _VPIF_TYPES_H
+#define _VPIF_TYPES_H
+
+#define VPIF_CAPTURE_MAX_CHANNELS	2
+
+enum vpif_if_type {
+	VPIF_IF_BT656,
+	VPIF_IF_BT1120,
+	VPIF_IF_RAW_BAYER
+};
+
+struct vpif_interface {
+	enum vpif_if_type if_type;
+	unsigned hd_pol:1;
+	unsigned vd_pol:1;
+	unsigned fid_pol:1;
+};
+
+struct vpif_subdev_info {
+	const char *name;
+	struct i2c_board_info board_info;
+	u32 input;
+	u32 output;
+	unsigned can_route:1;
+	struct vpif_interface vpif_if;
+};
+
+struct vpif_display_config {
+	int (*set_clock)(int, int);
+	struct vpif_subdev_info *subdevinfo;
+	int subdev_count;
+	const char **output;
+	int output_count;
+	const char *card_name;
+};
+
+struct vpif_input {
+	struct v4l2_input input;
+	const char *subdev_name;
+};
+
+struct vpif_capture_chan_config {
+	const struct vpif_input *inputs;
+	int input_count;
+};
+
+struct vpif_capture_config {
+	int (*setup_input_channel_mode)(int);
+	int (*setup_input_path)(int, const char *);
+	struct vpif_capture_chan_config chan_config[VPIF_CAPTURE_MAX_CHANNELS];
+	struct vpif_subdev_info *subdev_info;
+	int subdev_count;
+	const char *card_name;
+};
+#endif /* _VPIF_TYPES_H */
diff --git a/include/mtd/mtd-abi.h b/include/mtd/mtd-abi.h
index 1a7e1d20adf9..36eace03b2ac 100644
--- a/include/mtd/mtd-abi.h
+++ b/include/mtd/mtd-abi.h
@@ -198,7 +198,8 @@ struct otp_info {
 #define MEMISLOCKED		_IOR('M', 23, struct erase_info_user)
 /*
  * Most generic write interface; can write in-band and/or out-of-band in various
- * modes (see "struct mtd_write_req")
+ * modes (see "struct mtd_write_req"). This ioctl is not supported for flashes
+ * without OOB, e.g., NOR flash.
  */
 #define MEMWRITE		_IOWR('M', 24, struct mtd_write_req)
 
diff --git a/include/net/9p/9p.h b/include/net/9p/9p.h
index 2d70b95b3b55..7184853ca360 100644
--- a/include/net/9p/9p.h
+++ b/include/net/9p/9p.h
@@ -63,30 +63,16 @@ enum p9_debug_flags {
 
 #ifdef CONFIG_NET_9P_DEBUG
 extern unsigned int p9_debug_level;
-
-#define P9_DPRINTK(level, format, arg...) \
-do {  \
-	if ((p9_debug_level & level) == level) {\
-		if (level == P9_DEBUG_9P) \
-			printk(KERN_NOTICE "(%8.8d) " \
-			format , task_pid_nr(current) , ## arg); \
-		else \
-			printk(KERN_NOTICE "-- %s (%d): " \
-			format , __func__, task_pid_nr(current) , ## arg); \
-	} \
-} while (0)
-
+__printf(3, 4)
+void _p9_debug(enum p9_debug_flags level, const char *func,
+	       const char *fmt, ...);
+#define p9_debug(level, fmt, ...)			\
+	_p9_debug(level, __func__, fmt, ##__VA_ARGS__)
 #else
-#define P9_DPRINTK(level, format, arg...)  do { } while (0)
+#define p9_debug(level, fmt, ...)			\
+	no_printk(fmt, ##__VA_ARGS__)
 #endif
 
-
-#define P9_EPRINTK(level, format, arg...) \
-do { \
-	printk(level "9p: %s (%d): " \
-		format , __func__, task_pid_nr(current), ## arg); \
-} while (0)
-
 /**
  * enum p9_msg_t - 9P message types
  * @P9_TLERROR: not used
diff --git a/include/net/snmp.h b/include/net/snmp.h
index 2f65e1686fc8..0147b901e79c 100644
--- a/include/net/snmp.h
+++ b/include/net/snmp.h
@@ -129,33 +129,33 @@ struct linux_xfrm_mib {
 			__this_cpu_inc(mib[0]->mibs[field])
 
 #define SNMP_INC_STATS_USER(mib, field)	\
-			irqsafe_cpu_inc(mib[0]->mibs[field])
+			this_cpu_inc(mib[0]->mibs[field])
 
 #define SNMP_INC_STATS_ATOMIC_LONG(mib, field)	\
 			atomic_long_inc(&mib->mibs[field])
 
 #define SNMP_INC_STATS(mib, field)	\
-			irqsafe_cpu_inc(mib[0]->mibs[field])
+			this_cpu_inc(mib[0]->mibs[field])
 
 #define SNMP_DEC_STATS(mib, field)	\
-			irqsafe_cpu_dec(mib[0]->mibs[field])
+			this_cpu_dec(mib[0]->mibs[field])
 
 #define SNMP_ADD_STATS_BH(mib, field, addend)	\
 			__this_cpu_add(mib[0]->mibs[field], addend)
 
 #define SNMP_ADD_STATS_USER(mib, field, addend)	\
-			irqsafe_cpu_add(mib[0]->mibs[field], addend)
+			this_cpu_add(mib[0]->mibs[field], addend)
 
 #define SNMP_ADD_STATS(mib, field, addend)	\
-			irqsafe_cpu_add(mib[0]->mibs[field], addend)
+			this_cpu_add(mib[0]->mibs[field], addend)
 /*
  * Use "__typeof__(*mib[0]) *ptr" instead of "__typeof__(mib[0]) ptr"
  * to make @ptr a non-percpu pointer.
  */
 #define SNMP_UPD_PO_STATS(mib, basefield, addend)	\
 	do { \
-		irqsafe_cpu_inc(mib[0]->mibs[basefield##PKTS]);		\
-		irqsafe_cpu_add(mib[0]->mibs[basefield##OCTETS], addend);	\
+		this_cpu_inc(mib[0]->mibs[basefield##PKTS]);		\
+		this_cpu_add(mib[0]->mibs[basefield##OCTETS], addend);	\
 	} while (0)
 #define SNMP_UPD_PO_STATS_BH(mib, basefield, addend)	\
 	do { \
diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 5591ed54dc93..77273f2fdd80 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -185,7 +185,6 @@ typedef void (*activate_complete)(void *, int);
 struct scsi_device_handler {
 	/* Used by the infrastructure */
 	struct list_head list; /* list of scsi_device_handlers */
-	int idx;
 
 	/* Filled by the hardware handler */
 	struct module *module;
diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h
index 50266c9405fc..5f7d5b3b1c6e 100644
--- a/include/scsi/scsi_host.h
+++ b/include/scsi/scsi_host.h
@@ -669,6 +669,9 @@ struct Scsi_Host {
 	/* Asynchronous scan in progress */
 	unsigned async_scan:1;
 
+	/* Don't resume host in EH */
+	unsigned eh_noresume:1;
+
 	/*
 	 * Optional work queue to be utilized by the transport
 	 */
diff --git a/include/scsi/scsi_transport_iscsi.h b/include/scsi/scsi_transport_iscsi.h
index 87f34c3d447d..2c3a46d102fd 100644
--- a/include/scsi/scsi_transport_iscsi.h
+++ b/include/scsi/scsi_transport_iscsi.h
@@ -211,6 +211,11 @@ struct iscsi_cls_session {
 	unsigned int target_id;
 	bool ida_used;
 
+	/*
+	 * pid of userspace process that created session or -1 if
+	 * created by the kernel.
+	 */
+	pid_t creator;
 	int state;
 	int sid;				/* session id */
 	void *dd_data;				/* LLD private data */
diff --git a/include/sound/saif.h b/include/sound/saif.h
index d0e0de7984ec..f22f3e16edf4 100644
--- a/include/sound/saif.h
+++ b/include/sound/saif.h
@@ -10,7 +10,7 @@
 #define __SOUND_SAIF_H__
 
 struct mxs_saif_platform_data {
-	int (*init) (void);
-	int (*get_master_id) (unsigned int saif_id);
+	bool master_mode;	/* if true use master mode */
+	int master_id;		/* id of the master if in slave mode */
 };
 #endif
diff --git a/include/trace/events/ext4.h b/include/trace/events/ext4.h
index 748ff7cbe555..319538bf17d2 100644
--- a/include/trace/events/ext4.h
+++ b/include/trace/events/ext4.h
@@ -573,9 +573,9 @@ TRACE_EVENT(ext4_mb_release_inode_pa,
 );
 
 TRACE_EVENT(ext4_mb_release_group_pa,
-	TP_PROTO(struct ext4_prealloc_space *pa),
+	TP_PROTO(struct super_block *sb, struct ext4_prealloc_space *pa),
 
-	TP_ARGS(pa),
+	TP_ARGS(sb, pa),
 
 	TP_STRUCT__entry(
 		__field(	dev_t,	dev			)
@@ -585,7 +585,7 @@ TRACE_EVENT(ext4_mb_release_group_pa,
 	),
 
 	TP_fast_assign(
-		__entry->dev		= pa->pa_inode->i_sb->s_dev;
+		__entry->dev		= sb->s_dev;
 		__entry->pa_pstart	= pa->pa_pstart;
 		__entry->pa_len		= pa->pa_len;
 	),
diff --git a/include/trace/events/kmem.h b/include/trace/events/kmem.h
index a9c87ad8331c..5f889f16b0c8 100644
--- a/include/trace/events/kmem.h
+++ b/include/trace/events/kmem.h
@@ -147,7 +147,7 @@ DEFINE_EVENT(kmem_free, kmem_cache_free,
 	TP_ARGS(call_site, ptr)
 );
 
-TRACE_EVENT(mm_page_free_direct,
+TRACE_EVENT(mm_page_free,
 
 	TP_PROTO(struct page *page, unsigned int order),
 
@@ -169,7 +169,7 @@ TRACE_EVENT(mm_page_free_direct,
 			__entry->order)
 );
 
-TRACE_EVENT(mm_pagevec_free,
+TRACE_EVENT(mm_page_free_batched,
 
 	TP_PROTO(struct page *page, int cold),
 
diff --git a/include/trace/events/oom.h b/include/trace/events/oom.h
new file mode 100644
index 000000000000..dd4ba3b92002
--- /dev/null
+++ b/include/trace/events/oom.h
@@ -0,0 +1,33 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM oom
+
+#if !defined(_TRACE_OOM_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_OOM_H
+#include <linux/tracepoint.h>
+
+TRACE_EVENT(oom_score_adj_update,
+
+	TP_PROTO(struct task_struct *task),
+
+	TP_ARGS(task),
+
+	TP_STRUCT__entry(
+		__field(	pid_t,	pid)
+		__array(	char,	comm,	TASK_COMM_LEN )
+		__field(	 int,	oom_score_adj)
+	),
+
+	TP_fast_assign(
+		__entry->pid = task->pid;
+		memcpy(__entry->comm, task->comm, TASK_COMM_LEN);
+		__entry->oom_score_adj = task->signal->oom_score_adj;
+	),
+
+	TP_printk("pid=%d comm=%s oom_score_adj=%d",
+		__entry->pid, __entry->comm, __entry->oom_score_adj)
+);
+
+#endif
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
diff --git a/include/trace/events/task.h b/include/trace/events/task.h
new file mode 100644
index 000000000000..b53add02e929
--- /dev/null
+++ b/include/trace/events/task.h
@@ -0,0 +1,61 @@
+#undef TRACE_SYSTEM
+#define TRACE_SYSTEM task
+
+#if !defined(_TRACE_TASK_H) || defined(TRACE_HEADER_MULTI_READ)
+#define _TRACE_TASK_H
+#include <linux/tracepoint.h>
+
+TRACE_EVENT(task_newtask,
+
+	TP_PROTO(struct task_struct *task, unsigned long clone_flags),
+
+	TP_ARGS(task, clone_flags),
+
+	TP_STRUCT__entry(
+		__field(	pid_t,	pid)
+		__array(	char,	comm, TASK_COMM_LEN)
+		__field( unsigned long, clone_flags)
+		__field(	int,    oom_score_adj)
+	),
+
+	TP_fast_assign(
+		__entry->pid = task->pid;
+		memcpy(__entry->comm, task->comm, TASK_COMM_LEN);
+		__entry->clone_flags = clone_flags;
+		__entry->oom_score_adj = task->signal->oom_score_adj;
+	),
+
+	TP_printk("pid=%d comm=%s clone_flags=%lx oom_score_adj=%d",
+		__entry->pid, __entry->comm,
+		__entry->clone_flags, __entry->oom_score_adj)
+);
+
+TRACE_EVENT(task_rename,
+
+	TP_PROTO(struct task_struct *task, char *comm),
+
+	TP_ARGS(task, comm),
+
+	TP_STRUCT__entry(
+		__field(	pid_t,	pid)
+		__array(	char, oldcomm,  TASK_COMM_LEN)
+		__array(	char, newcomm,  TASK_COMM_LEN)
+		__field(	int, oom_score_adj)
+	),
+
+	TP_fast_assign(
+		__entry->pid = task->pid;
+		memcpy(entry->oldcomm, task->comm, TASK_COMM_LEN);
+		memcpy(entry->newcomm, comm, TASK_COMM_LEN);
+		__entry->oom_score_adj = task->signal->oom_score_adj;
+	),
+
+	TP_printk("pid=%d oldcomm=%s newcomm=%s oom_score_adj=%d",
+		__entry->pid, __entry->oldcomm,
+		__entry->newcomm, __entry->oom_score_adj)
+);
+
+#endif
+
+/* This part must be outside protection */
+#include <trace/define_trace.h>
diff --git a/include/trace/events/writeback.h b/include/trace/events/writeback.h
index 99d1d0decf88..8588a8918023 100644
--- a/include/trace/events/writeback.h
+++ b/include/trace/events/writeback.h
@@ -300,12 +300,13 @@ TRACE_EVENT(balance_dirty_pages,
 		 unsigned long dirty_ratelimit,
 		 unsigned long task_ratelimit,
 		 unsigned long dirtied,
+		 unsigned long period,
 		 long pause,
 		 unsigned long start_time),
 
 	TP_ARGS(bdi, thresh, bg_thresh, dirty, bdi_thresh, bdi_dirty,
 		dirty_ratelimit, task_ratelimit,
-		dirtied, pause, start_time),
+		dirtied, period, pause, start_time),
 
 	TP_STRUCT__entry(
 		__array(	 char,	bdi, 32)
@@ -320,6 +321,8 @@ TRACE_EVENT(balance_dirty_pages,
 		__field(unsigned int,	dirtied_pause)
 		__field(unsigned long,	paused)
 		__field(	 long,	pause)
+		__field(unsigned long,	period)
+		__field(	 long,	think)
 	),
 
 	TP_fast_assign(
@@ -336,6 +339,9 @@ TRACE_EVENT(balance_dirty_pages,
 		__entry->task_ratelimit	= KBps(task_ratelimit);
 		__entry->dirtied	= dirtied;
 		__entry->dirtied_pause	= current->nr_dirtied_pause;
+		__entry->think		= current->dirty_paused_when == 0 ? 0 :
+			 (long)(jiffies - current->dirty_paused_when) * 1000/HZ;
+		__entry->period		= period * 1000 / HZ;
 		__entry->pause		= pause * 1000 / HZ;
 		__entry->paused		= (jiffies - start_time) * 1000 / HZ;
 	),
@@ -346,7 +352,7 @@ TRACE_EVENT(balance_dirty_pages,
 		  "bdi_setpoint=%lu bdi_dirty=%lu "
 		  "dirty_ratelimit=%lu task_ratelimit=%lu "
 		  "dirtied=%u dirtied_pause=%u "
-		  "paused=%lu pause=%ld",
+		  "paused=%lu pause=%ld period=%lu think=%ld",
 		  __entry->bdi,
 		  __entry->limit,
 		  __entry->setpoint,
@@ -358,7 +364,9 @@ TRACE_EVENT(balance_dirty_pages,
 		  __entry->dirtied,
 		  __entry->dirtied_pause,
 		  __entry->paused,	/* ms */
-		  __entry->pause	/* ms */
+		  __entry->pause,	/* ms */
+		  __entry->period,	/* ms */
+		  __entry->think	/* ms */
 	  )
 );
 
diff --git a/include/xen/events.h b/include/xen/events.h
index d287997d3eab..0f773708e02c 100644
--- a/include/xen/events.h
+++ b/include/xen/events.h
@@ -37,6 +37,13 @@ int bind_interdomain_evtchn_to_irqhandler(unsigned int remote_domain,
  */
 void unbind_from_irqhandler(unsigned int irq, void *dev_id);
 
+/*
+ * Allow extra references to event channels exposed to userspace by evtchn
+ */
+int evtchn_make_refcounted(unsigned int evtchn);
+int evtchn_get(unsigned int evtchn);
+void evtchn_put(unsigned int evtchn);
+
 void xen_send_IPI_one(unsigned int cpu, enum ipi_vector vector);
 int resend_irq_on_evtchn(unsigned int irq);
 void rebind_evtchn_irq(int evtchn, int irq);
diff --git a/include/xen/grant_table.h b/include/xen/grant_table.h
index 11e2dfce42f8..15f8a00ff003 100644
--- a/include/xen/grant_table.h
+++ b/include/xen/grant_table.h
@@ -62,6 +62,24 @@ int gnttab_resume(void);
 
 int gnttab_grant_foreign_access(domid_t domid, unsigned long frame,
 				int readonly);
+int gnttab_grant_foreign_access_subpage(domid_t domid, unsigned long frame,
+					int flags, unsigned page_off,
+					unsigned length);
+int gnttab_grant_foreign_access_trans(domid_t domid, int flags,
+				      domid_t trans_domid,
+				      grant_ref_t trans_gref);
+
+/*
+ * Are sub-page grants available on this version of Xen?  Returns true if they
+ * are, and false if they're not.
+ */
+bool gnttab_subpage_grants_available(void);
+
+/*
+ * Are transitive grants available on this version of Xen?  Returns true if they
+ * are, and false if they're not.
+ */
+bool gnttab_trans_grants_available(void);
 
 /*
  * End access through the given grant reference, iff the grant entry is no
@@ -108,6 +126,13 @@ void gnttab_cancel_free_callback(struct gnttab_free_callback *callback);
 
 void gnttab_grant_foreign_access_ref(grant_ref_t ref, domid_t domid,
 				     unsigned long frame, int readonly);
+int gnttab_grant_foreign_access_subpage_ref(grant_ref_t ref, domid_t domid,
+					    unsigned long frame, int flags,
+					    unsigned page_off,
+					    unsigned length);
+int gnttab_grant_foreign_access_trans_ref(grant_ref_t ref, domid_t domid,
+					  int flags, domid_t trans_domid,
+					  grant_ref_t trans_gref);
 
 void gnttab_grant_foreign_transfer_ref(grant_ref_t, domid_t domid,
 				       unsigned long pfn);
@@ -145,9 +170,11 @@ gnttab_set_unmap_op(struct gnttab_unmap_grant_ref *unmap, phys_addr_t addr,
 
 int arch_gnttab_map_shared(unsigned long *frames, unsigned long nr_gframes,
 			   unsigned long max_nr_gframes,
-			   struct grant_entry **__shared);
-void arch_gnttab_unmap_shared(struct grant_entry *shared,
-			      unsigned long nr_gframes);
+			   void **__shared);
+int arch_gnttab_map_status(uint64_t *frames, unsigned long nr_gframes,
+			   unsigned long max_nr_gframes,
+			   grant_status_t **__shared);
+void arch_gnttab_unmap(void *shared, unsigned long nr_gframes);
 
 extern unsigned long xen_hvm_resume_frames;
 unsigned int gnttab_max_grant_frames(void);
@@ -155,9 +182,9 @@ unsigned int gnttab_max_grant_frames(void);
 #define gnttab_map_vaddr(map) ((void *)(map.host_virt_addr))
 
 int gnttab_map_refs(struct gnttab_map_grant_ref *map_ops,
-			struct gnttab_map_grant_ref *kmap_ops,
+		    struct gnttab_map_grant_ref *kmap_ops,
 		    struct page **pages, unsigned int count);
 int gnttab_unmap_refs(struct gnttab_unmap_grant_ref *unmap_ops,
-		      struct page **pages, unsigned int count);
+		      struct page **pages, unsigned int count, bool clear_pte);
 
 #endif /* __ASM_GNTTAB_H__ */
diff --git a/include/xen/interface/grant_table.h b/include/xen/interface/grant_table.h
index 39e571796e32..a17d84433e6a 100644
--- a/include/xen/interface/grant_table.h
+++ b/include/xen/interface/grant_table.h
@@ -85,12 +85,22 @@
  */
 
 /*
+ * Reference to a grant entry in a specified domain's grant table.
+ */
+typedef uint32_t grant_ref_t;
+
+/*
  * A grant table comprises a packed array of grant entries in one or more
  * page frames shared between Xen and a guest.
  * [XEN]: This field is written by Xen and read by the sharing guest.
  * [GST]: This field is written by the guest and read by Xen.
  */
-struct grant_entry {
+
+/*
+ * Version 1 of the grant table entry structure is maintained purely
+ * for backwards compatibility.  New guests should use version 2.
+ */
+struct grant_entry_v1 {
     /* GTF_xxx: various type and flag information.  [XEN,GST] */
     uint16_t flags;
     /* The domain being granted foreign privileges. [GST] */
@@ -108,10 +118,13 @@ struct grant_entry {
  *  GTF_permit_access: Allow @domid to map/access @frame.
  *  GTF_accept_transfer: Allow @domid to transfer ownership of one page frame
  *                       to this guest. Xen writes the page number to @frame.
+ *  GTF_transitive: Allow @domid to transitively access a subrange of
+ *                  @trans_grant in @trans_domid.  No mappings are allowed.
  */
 #define GTF_invalid         (0U<<0)
 #define GTF_permit_access   (1U<<0)
 #define GTF_accept_transfer (2U<<0)
+#define GTF_transitive      (3U<<0)
 #define GTF_type_mask       (3U<<0)
 
 /*
@@ -119,6 +132,9 @@ struct grant_entry {
  *  GTF_readonly: Restrict @domid to read-only mappings and accesses. [GST]
  *  GTF_reading: Grant entry is currently mapped for reading by @domid. [XEN]
  *  GTF_writing: Grant entry is currently mapped for writing by @domid. [XEN]
+ *  GTF_sub_page: Grant access to only a subrange of the page.  @domid
+ *                will only be allowed to copy from the grant, and not
+ *                map it. [GST]
  */
 #define _GTF_readonly       (2)
 #define GTF_readonly        (1U<<_GTF_readonly)
@@ -126,6 +142,8 @@ struct grant_entry {
 #define GTF_reading         (1U<<_GTF_reading)
 #define _GTF_writing        (4)
 #define GTF_writing         (1U<<_GTF_writing)
+#define _GTF_sub_page       (8)
+#define GTF_sub_page        (1U<<_GTF_sub_page)
 
 /*
  * Subflags for GTF_accept_transfer:
@@ -142,15 +160,81 @@ struct grant_entry {
 #define _GTF_transfer_completed (3)
 #define GTF_transfer_completed  (1U<<_GTF_transfer_completed)
 
+/*
+ * Version 2 grant table entries.  These fulfil the same role as
+ * version 1 entries, but can represent more complicated operations.
+ * Any given domain will have either a version 1 or a version 2 table,
+ * and every entry in the table will be the same version.
+ *
+ * The interface by which domains use grant references does not depend
+ * on the grant table version in use by the other domain.
+ */
 
-/***********************************
- * GRANT TABLE QUERIES AND USES
+/*
+ * Version 1 and version 2 grant entries share a common prefix.  The
+ * fields of the prefix are documented as part of struct
+ * grant_entry_v1.
  */
+struct grant_entry_header {
+    uint16_t flags;
+    domid_t  domid;
+};
 
 /*
- * Reference to a grant entry in a specified domain's grant table.
+ * Version 2 of the grant entry structure, here is an union because three
+ * different types are suppotted: full_page, sub_page and transitive.
+ */
+union grant_entry_v2 {
+    struct grant_entry_header hdr;
+
+    /*
+     * This member is used for V1-style full page grants, where either:
+     *
+     * -- hdr.type is GTF_accept_transfer, or
+     * -- hdr.type is GTF_permit_access and GTF_sub_page is not set.
+     *
+     * In that case, the frame field has the same semantics as the
+     * field of the same name in the V1 entry structure.
+     */
+    struct {
+	struct grant_entry_header hdr;
+	uint32_t pad0;
+	uint64_t frame;
+    } full_page;
+
+    /*
+     * If the grant type is GTF_grant_access and GTF_sub_page is set,
+     * @domid is allowed to access bytes [@page_off,@page_off+@length)
+     * in frame @frame.
+     */
+    struct {
+	struct grant_entry_header hdr;
+	uint16_t page_off;
+	uint16_t length;
+	uint64_t frame;
+    } sub_page;
+
+    /*
+     * If the grant is GTF_transitive, @domid is allowed to use the
+     * grant @gref in domain @trans_domid, as if it was the local
+     * domain.  Obviously, the transitive access must be compatible
+     * with the original grant.
+     */
+    struct {
+	struct grant_entry_header hdr;
+	domid_t trans_domid;
+	uint16_t pad0;
+	grant_ref_t gref;
+    } transitive;
+
+    uint32_t __spacer[4]; /* Pad to a power of two */
+};
+
+typedef uint16_t grant_status_t;
+
+/***********************************
+ * GRANT TABLE QUERIES AND USES
  */
-typedef uint32_t grant_ref_t;
 
 /*
  * Handle to track a mapping created via a grant reference.
@@ -322,6 +406,79 @@ struct gnttab_query_size {
 DEFINE_GUEST_HANDLE_STRUCT(gnttab_query_size);
 
 /*
+ * GNTTABOP_unmap_and_replace: Destroy one or more grant-reference mappings
+ * tracked by <handle> but atomically replace the page table entry with one
+ * pointing to the machine address under <new_addr>.  <new_addr> will be
+ * redirected to the null entry.
+ * NOTES:
+ *  1. The call may fail in an undefined manner if either mapping is not
+ *     tracked by <handle>.
+ *  2. After executing a batch of unmaps, it is guaranteed that no stale
+ *     mappings will remain in the device or host TLBs.
+ */
+#define GNTTABOP_unmap_and_replace    7
+struct gnttab_unmap_and_replace {
+    /* IN parameters. */
+    uint64_t host_addr;
+    uint64_t new_addr;
+    grant_handle_t handle;
+    /* OUT parameters. */
+    int16_t  status;              /* GNTST_* */
+};
+DEFINE_GUEST_HANDLE_STRUCT(gnttab_unmap_and_replace);
+
+/*
+ * GNTTABOP_set_version: Request a particular version of the grant
+ * table shared table structure.  This operation can only be performed
+ * once in any given domain.  It must be performed before any grants
+ * are activated; otherwise, the domain will be stuck with version 1.
+ * The only defined versions are 1 and 2.
+ */
+#define GNTTABOP_set_version          8
+struct gnttab_set_version {
+    /* IN parameters */
+    uint32_t version;
+};
+DEFINE_GUEST_HANDLE_STRUCT(gnttab_set_version);
+
+/*
+ * GNTTABOP_get_status_frames: Get the list of frames used to store grant
+ * status for <dom>. In grant format version 2, the status is separated
+ * from the other shared grant fields to allow more efficient synchronization
+ * using barriers instead of atomic cmpexch operations.
+ * <nr_frames> specify the size of vector <frame_list>.
+ * The frame addresses are returned in the <frame_list>.
+ * Only <nr_frames> addresses are returned, even if the table is larger.
+ * NOTES:
+ *  1. <dom> may be specified as DOMID_SELF.
+ *  2. Only a sufficiently-privileged domain may specify <dom> != DOMID_SELF.
+ */
+#define GNTTABOP_get_status_frames     9
+struct gnttab_get_status_frames {
+    /* IN parameters. */
+    uint32_t nr_frames;
+    domid_t  dom;
+    /* OUT parameters. */
+    int16_t  status;              /* GNTST_* */
+    GUEST_HANDLE(uint64_t) frame_list;
+};
+DEFINE_GUEST_HANDLE_STRUCT(gnttab_get_status_frames);
+
+/*
+ * GNTTABOP_get_version: Get the grant table version which is in
+ * effect for domain <dom>.
+ */
+#define GNTTABOP_get_version          10
+struct gnttab_get_version {
+    /* IN parameters */
+    domid_t dom;
+    uint16_t pad;
+    /* OUT parameters */
+    uint32_t version;
+};
+DEFINE_GUEST_HANDLE_STRUCT(gnttab_get_version);
+
+/*
  * Bitfield values for update_pin_status.flags.
  */
  /* Map the grant entry for access by I/O devices. */
diff --git a/include/xen/interface/io/xs_wire.h b/include/xen/interface/io/xs_wire.h
index f6f07aa35af5..7cdfca24eafb 100644
--- a/include/xen/interface/io/xs_wire.h
+++ b/include/xen/interface/io/xs_wire.h
@@ -87,4 +87,7 @@ struct xenstore_domain_interface {
     XENSTORE_RING_IDX rsp_cons, rsp_prod;
 };
 
+/* Violating this is very bad.  See docs/misc/xenstore.txt. */
+#define XENSTORE_PAYLOAD_MAX 4096
+
 #endif /* _XS_WIRE_H */
diff --git a/include/xen/interface/xen.h b/include/xen/interface/xen.h
index 6a6e91449347..a890804945e3 100644
--- a/include/xen/interface/xen.h
+++ b/include/xen/interface/xen.h
@@ -523,6 +523,8 @@ struct tmem_op {
 	} u;
 };
 
+DEFINE_GUEST_HANDLE(u64);
+
 #else /* __ASSEMBLY__ */
 
 /* In assembly code we cannot use C numeric constant suffixes. */
diff --git a/include/xen/xenbus.h b/include/xen/xenbus.h
index b1b6676c1c43..e8c599b237c2 100644
--- a/include/xen/xenbus.h
+++ b/include/xen/xenbus.h
@@ -85,8 +85,6 @@ struct xenbus_device_id
 
 /* A xenbus driver. */
 struct xenbus_driver {
-	char *name;
-	struct module *owner;
 	const struct xenbus_device_id *ids;
 	int (*probe)(struct xenbus_device *dev,
 		     const struct xenbus_device_id *id);
@@ -101,31 +99,20 @@ struct xenbus_driver {
 	int (*is_ready)(struct xenbus_device *dev);
 };
 
-static inline struct xenbus_driver *to_xenbus_driver(struct device_driver *drv)
-{
-	return container_of(drv, struct xenbus_driver, driver);
+#define DEFINE_XENBUS_DRIVER(var, drvname, methods...)		\
+struct xenbus_driver var ## _driver = {				\
+	.driver.name = drvname + 0 ?: var ## _ids->devicetype,	\
+	.driver.owner = THIS_MODULE,				\
+	.ids = var ## _ids, ## methods				\
 }
 
-int __must_check __xenbus_register_frontend(struct xenbus_driver *drv,
-					    struct module *owner,
-					    const char *mod_name);
-
-static inline int __must_check
-xenbus_register_frontend(struct xenbus_driver *drv)
+static inline struct xenbus_driver *to_xenbus_driver(struct device_driver *drv)
 {
-	WARN_ON(drv->owner != THIS_MODULE);
-	return __xenbus_register_frontend(drv, THIS_MODULE, KBUILD_MODNAME);
+	return container_of(drv, struct xenbus_driver, driver);
 }
 
-int __must_check __xenbus_register_backend(struct xenbus_driver *drv,
-					   struct module *owner,
-					   const char *mod_name);
-static inline int __must_check
-xenbus_register_backend(struct xenbus_driver *drv)
-{
-	WARN_ON(drv->owner != THIS_MODULE);
-	return __xenbus_register_backend(drv, THIS_MODULE, KBUILD_MODNAME);
-}
+int __must_check xenbus_register_frontend(struct xenbus_driver *);
+int __must_check xenbus_register_backend(struct xenbus_driver *);
 
 void xenbus_unregister_driver(struct xenbus_driver *drv);
 
diff --git a/include/xen/xenbus_dev.h b/include/xen/xenbus_dev.h
new file mode 100644
index 000000000000..ac5f0fe47ed9
--- /dev/null
+++ b/include/xen/xenbus_dev.h
@@ -0,0 +1,41 @@
+/******************************************************************************
+ * evtchn.h
+ *
+ * Interface to /dev/xen/xenbus_backend.
+ *
+ * Copyright (c) 2011 Bastian Blank <waldi@debian.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License version 2
+ * as published by the Free Software Foundation; or, when distributed
+ * separately from the Linux kernel or incorporated into other
+ * software packages, subject to the following license:
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this source file (the "Software"), to deal in the Software without
+ * restriction, including without limitation the rights to use, copy, modify,
+ * merge, publish, distribute, sublicense, and/or sell copies of the Software,
+ * and to permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#ifndef __LINUX_XEN_XENBUS_DEV_H__
+#define __LINUX_XEN_XENBUS_DEV_H__
+
+#include <linux/ioctl.h>
+
+#define IOCTL_XENBUS_BACKEND_EVTCHN			\
+	_IOC(_IOC_NONE, 'B', 0, 0)
+
+#endif /* __LINUX_XEN_XENBUS_DEV_H__ */
diff --git a/init/do_mounts.c b/init/do_mounts.c
index b2eee02e0f83..2974c8b3b351 100644
--- a/init/do_mounts.c
+++ b/init/do_mounts.c
@@ -400,15 +400,42 @@ out:
 }
  
 #ifdef CONFIG_ROOT_NFS
+
+#define NFSROOT_TIMEOUT_MIN	5
+#define NFSROOT_TIMEOUT_MAX	30
+#define NFSROOT_RETRY_MAX	5
+
 static int __init mount_nfs_root(void)
 {
 	char *root_dev, *root_data;
+	unsigned int timeout;
+	int try, err;
 
-	if (nfs_root_data(&root_dev, &root_data) != 0)
-		return 0;
-	if (do_mount_root(root_dev, "nfs", root_mountflags, root_data) != 0)
+	err = nfs_root_data(&root_dev, &root_data);
+	if (err != 0)
 		return 0;
-	return 1;
+
+	/*
+	 * The server or network may not be ready, so try several
+	 * times.  Stop after a few tries in case the client wants
+	 * to fall back to other boot methods.
+	 */
+	timeout = NFSROOT_TIMEOUT_MIN;
+	for (try = 1; ; try++) {
+		err = do_mount_root(root_dev, "nfs",
+					root_mountflags, root_data);
+		if (err == 0)
+			return 1;
+		if (try > NFSROOT_RETRY_MAX)
+			break;
+
+		/* Wait, in case the server refused us immediately */
+		ssleep(timeout);
+		timeout <<= 1;
+		if (timeout > NFSROOT_TIMEOUT_MAX)
+			timeout = NFSROOT_TIMEOUT_MAX;
+	}
+	return 0;
 }
 #endif
 
diff --git a/ipc/mqueue.c b/ipc/mqueue.c
index 9a142a290749..9b7c8ab7d75c 100644
--- a/ipc/mqueue.c
+++ b/ipc/mqueue.c
@@ -32,6 +32,7 @@
 #include <linux/nsproxy.h>
 #include <linux/pid.h>
 #include <linux/ipc_namespace.h>
+#include <linux/user_namespace.h>
 #include <linux/slab.h>
 
 #include <net/sock.h>
@@ -542,9 +543,13 @@ static void __do_notify(struct mqueue_inode_info *info)
 			sig_i.si_errno = 0;
 			sig_i.si_code = SI_MESGQ;
 			sig_i.si_value = info->notify.sigev_value;
+			/* map current pid/uid into info->owner's namespaces */
+			rcu_read_lock();
 			sig_i.si_pid = task_tgid_nr_ns(current,
 						ns_of_pid(info->notify_owner));
-			sig_i.si_uid = current_uid();
+			sig_i.si_uid = user_ns_map_uid(info->user->user_ns,
+						current_cred(), current_uid());
+			rcu_read_unlock();
 
 			kill_pid_info(info->notify.sigev_signo,
 				      &sig_i, info->notify_owner);
diff --git a/kernel/cgroup.c b/kernel/cgroup.c
index 7cab65f83f1d..a5d3b5325f77 100644
--- a/kernel/cgroup.c
+++ b/kernel/cgroup.c
@@ -63,7 +63,24 @@
 
 #include <linux/atomic.h>
 
+/*
+ * cgroup_mutex is the master lock.  Any modification to cgroup or its
+ * hierarchy must be performed while holding it.
+ *
+ * cgroup_root_mutex nests inside cgroup_mutex and should be held to modify
+ * cgroupfs_root of any cgroup hierarchy - subsys list, flags,
+ * release_agent_path and so on.  Modifying requires both cgroup_mutex and
+ * cgroup_root_mutex.  Readers can acquire either of the two.  This is to
+ * break the following locking order cycle.
+ *
+ *  A. cgroup_mutex -> cred_guard_mutex -> s_type->i_mutex_key -> namespace_sem
+ *  B. namespace_sem -> cgroup_mutex
+ *
+ * B happens only through cgroup_show_options() and using cgroup_root_mutex
+ * breaks it.
+ */
 static DEFINE_MUTEX(cgroup_mutex);
+static DEFINE_MUTEX(cgroup_root_mutex);
 
 /*
  * Generate an array of cgroup subsystem pointers. At boot time, this is
@@ -921,7 +938,7 @@ static void cgroup_d_remove_dir(struct dentry *dentry)
  *
  * CGRP_WAIT_ON_RMDIR flag is set under cgroup's inode->i_mutex;
  */
-DECLARE_WAIT_QUEUE_HEAD(cgroup_rmdir_waitq);
+static DECLARE_WAIT_QUEUE_HEAD(cgroup_rmdir_waitq);
 
 static void cgroup_wakeup_rmdir_waiter(struct cgroup *cgrp)
 {
@@ -953,6 +970,7 @@ static int rebind_subsystems(struct cgroupfs_root *root,
 	int i;
 
 	BUG_ON(!mutex_is_locked(&cgroup_mutex));
+	BUG_ON(!mutex_is_locked(&cgroup_root_mutex));
 
 	removed_bits = root->actual_subsys_bits & ~final_bits;
 	added_bits = final_bits & ~root->actual_subsys_bits;
@@ -1043,7 +1061,7 @@ static int cgroup_show_options(struct seq_file *seq, struct dentry *dentry)
 	struct cgroupfs_root *root = dentry->d_sb->s_fs_info;
 	struct cgroup_subsys *ss;
 
-	mutex_lock(&cgroup_mutex);
+	mutex_lock(&cgroup_root_mutex);
 	for_each_subsys(root, ss)
 		seq_printf(seq, ",%s", ss->name);
 	if (test_bit(ROOT_NOPREFIX, &root->flags))
@@ -1054,7 +1072,7 @@ static int cgroup_show_options(struct seq_file *seq, struct dentry *dentry)
 		seq_puts(seq, ",clone_children");
 	if (strlen(root->name))
 		seq_printf(seq, ",name=%s", root->name);
-	mutex_unlock(&cgroup_mutex);
+	mutex_unlock(&cgroup_root_mutex);
 	return 0;
 }
 
@@ -1175,10 +1193,10 @@ static int parse_cgroupfs_options(char *data, struct cgroup_sb_opts *opts)
 
 	/*
 	 * If the 'all' option was specified select all the subsystems,
-	 * otherwise 'all, 'none' and a subsystem name options were not
-	 * specified, let's default to 'all'
+	 * otherwise if 'none', 'name=' and a subsystem name options
+	 * were not specified, let's default to 'all'
 	 */
-	if (all_ss || (!all_ss && !one_ss && !opts->none)) {
+	if (all_ss || (!one_ss && !opts->none && !opts->name)) {
 		for (i = 0; i < CGROUP_SUBSYS_COUNT; i++) {
 			struct cgroup_subsys *ss = subsys[i];
 			if (ss == NULL)
@@ -1269,6 +1287,7 @@ static int cgroup_remount(struct super_block *sb, int *flags, char *data)
 
 	mutex_lock(&cgrp->dentry->d_inode->i_mutex);
 	mutex_lock(&cgroup_mutex);
+	mutex_lock(&cgroup_root_mutex);
 
 	/* See what subsystems are wanted */
 	ret = parse_cgroupfs_options(data, &opts);
@@ -1297,6 +1316,7 @@ static int cgroup_remount(struct super_block *sb, int *flags, char *data)
  out_unlock:
 	kfree(opts.release_agent);
 	kfree(opts.name);
+	mutex_unlock(&cgroup_root_mutex);
 	mutex_unlock(&cgroup_mutex);
 	mutex_unlock(&cgrp->dentry->d_inode->i_mutex);
 	return ret;
@@ -1481,6 +1501,7 @@ static struct dentry *cgroup_mount(struct file_system_type *fs_type,
 	int ret = 0;
 	struct super_block *sb;
 	struct cgroupfs_root *new_root;
+	struct inode *inode;
 
 	/* First find the desired set of subsystems */
 	mutex_lock(&cgroup_mutex);
@@ -1514,7 +1535,6 @@ static struct dentry *cgroup_mount(struct file_system_type *fs_type,
 		/* We used the new root structure, so this is a new hierarchy */
 		struct list_head tmp_cg_links;
 		struct cgroup *root_cgrp = &root->top_cgroup;
-		struct inode *inode;
 		struct cgroupfs_root *existing_root;
 		const struct cred *cred;
 		int i;
@@ -1528,18 +1548,14 @@ static struct dentry *cgroup_mount(struct file_system_type *fs_type,
 
 		mutex_lock(&inode->i_mutex);
 		mutex_lock(&cgroup_mutex);
+		mutex_lock(&cgroup_root_mutex);
 
-		if (strlen(root->name)) {
-			/* Check for name clashes with existing mounts */
-			for_each_active_root(existing_root) {
-				if (!strcmp(existing_root->name, root->name)) {
-					ret = -EBUSY;
-					mutex_unlock(&cgroup_mutex);
-					mutex_unlock(&inode->i_mutex);
-					goto drop_new_super;
-				}
-			}
-		}
+		/* Check for name clashes with existing mounts */
+		ret = -EBUSY;
+		if (strlen(root->name))
+			for_each_active_root(existing_root)
+				if (!strcmp(existing_root->name, root->name))
+					goto unlock_drop;
 
 		/*
 		 * We're accessing css_set_count without locking
@@ -1549,18 +1565,13 @@ static struct dentry *cgroup_mount(struct file_system_type *fs_type,
 		 * have some link structures left over
 		 */
 		ret = allocate_cg_links(css_set_count, &tmp_cg_links);
-		if (ret) {
-			mutex_unlock(&cgroup_mutex);
-			mutex_unlock(&inode->i_mutex);
-			goto drop_new_super;
-		}
+		if (ret)
+			goto unlock_drop;
 
 		ret = rebind_subsystems(root, root->subsys_bits);
 		if (ret == -EBUSY) {
-			mutex_unlock(&cgroup_mutex);
-			mutex_unlock(&inode->i_mutex);
 			free_cg_links(&tmp_cg_links);
-			goto drop_new_super;
+			goto unlock_drop;
 		}
 		/*
 		 * There must be no failure case after here, since rebinding
@@ -1599,6 +1610,7 @@ static struct dentry *cgroup_mount(struct file_system_type *fs_type,
 		cred = override_creds(&init_cred);
 		cgroup_populate_dir(root_cgrp);
 		revert_creds(cred);
+		mutex_unlock(&cgroup_root_mutex);
 		mutex_unlock(&cgroup_mutex);
 		mutex_unlock(&inode->i_mutex);
 	} else {
@@ -1615,6 +1627,10 @@ static struct dentry *cgroup_mount(struct file_system_type *fs_type,
 	kfree(opts.name);
 	return dget(sb->s_root);
 
+ unlock_drop:
+	mutex_unlock(&cgroup_root_mutex);
+	mutex_unlock(&cgroup_mutex);
+	mutex_unlock(&inode->i_mutex);
  drop_new_super:
 	deactivate_locked_super(sb);
  drop_modules:
@@ -1639,6 +1655,7 @@ static void cgroup_kill_sb(struct super_block *sb) {
 	BUG_ON(!list_empty(&cgrp->sibling));
 
 	mutex_lock(&cgroup_mutex);
+	mutex_lock(&cgroup_root_mutex);
 
 	/* Rebind all subsystems back to the default hierarchy */
 	ret = rebind_subsystems(root, 0);
@@ -1664,6 +1681,7 @@ static void cgroup_kill_sb(struct super_block *sb) {
 		root_count--;
 	}
 
+	mutex_unlock(&cgroup_root_mutex);
 	mutex_unlock(&cgroup_mutex);
 
 	kill_litter_super(sb);
@@ -1740,11 +1758,90 @@ int cgroup_path(const struct cgroup *cgrp, char *buf, int buflen)
 EXPORT_SYMBOL_GPL(cgroup_path);
 
 /*
+ * Control Group taskset
+ */
+struct task_and_cgroup {
+	struct task_struct	*task;
+	struct cgroup		*cgrp;
+};
+
+struct cgroup_taskset {
+	struct task_and_cgroup	single;
+	struct flex_array	*tc_array;
+	int			tc_array_len;
+	int			idx;
+	struct cgroup		*cur_cgrp;
+};
+
+/**
+ * cgroup_taskset_first - reset taskset and return the first task
+ * @tset: taskset of interest
+ *
+ * @tset iteration is initialized and the first task is returned.
+ */
+struct task_struct *cgroup_taskset_first(struct cgroup_taskset *tset)
+{
+	if (tset->tc_array) {
+		tset->idx = 0;
+		return cgroup_taskset_next(tset);
+	} else {
+		tset->cur_cgrp = tset->single.cgrp;
+		return tset->single.task;
+	}
+}
+EXPORT_SYMBOL_GPL(cgroup_taskset_first);
+
+/**
+ * cgroup_taskset_next - iterate to the next task in taskset
+ * @tset: taskset of interest
+ *
+ * Return the next task in @tset.  Iteration must have been initialized
+ * with cgroup_taskset_first().
+ */
+struct task_struct *cgroup_taskset_next(struct cgroup_taskset *tset)
+{
+	struct task_and_cgroup *tc;
+
+	if (!tset->tc_array || tset->idx >= tset->tc_array_len)
+		return NULL;
+
+	tc = flex_array_get(tset->tc_array, tset->idx++);
+	tset->cur_cgrp = tc->cgrp;
+	return tc->task;
+}
+EXPORT_SYMBOL_GPL(cgroup_taskset_next);
+
+/**
+ * cgroup_taskset_cur_cgroup - return the matching cgroup for the current task
+ * @tset: taskset of interest
+ *
+ * Return the cgroup for the current (last returned) task of @tset.  This
+ * function must be preceded by either cgroup_taskset_first() or
+ * cgroup_taskset_next().
+ */
+struct cgroup *cgroup_taskset_cur_cgroup(struct cgroup_taskset *tset)
+{
+	return tset->cur_cgrp;
+}
+EXPORT_SYMBOL_GPL(cgroup_taskset_cur_cgroup);
+
+/**
+ * cgroup_taskset_size - return the number of tasks in taskset
+ * @tset: taskset of interest
+ */
+int cgroup_taskset_size(struct cgroup_taskset *tset)
+{
+	return tset->tc_array ? tset->tc_array_len : 1;
+}
+EXPORT_SYMBOL_GPL(cgroup_taskset_size);
+
+
+/*
  * cgroup_task_migrate - move a task from one cgroup to another.
  *
  * 'guarantee' is set if the caller promises that a new css_set for the task
  * will already exist. If not set, this function might sleep, and can fail with
- * -ENOMEM. Otherwise, it can only fail with -ESRCH.
+ * -ENOMEM. Must be called with cgroup_mutex and threadgroup locked.
  */
 static int cgroup_task_migrate(struct cgroup *cgrp, struct cgroup *oldcgrp,
 			       struct task_struct *tsk, bool guarantee)
@@ -1753,14 +1850,12 @@ static int cgroup_task_migrate(struct cgroup *cgrp, struct cgroup *oldcgrp,
 	struct css_set *newcg;
 
 	/*
-	 * get old css_set. we need to take task_lock and refcount it, because
-	 * an exiting task can change its css_set to init_css_set and drop its
-	 * old one without taking cgroup_mutex.
+	 * We are synchronized through threadgroup_lock() against PF_EXITING
+	 * setting such that we can't race against cgroup_exit() changing the
+	 * css_set to init_css_set and dropping the old one.
 	 */
-	task_lock(tsk);
+	WARN_ON_ONCE(tsk->flags & PF_EXITING);
 	oldcg = tsk->cgroups;
-	get_css_set(oldcg);
-	task_unlock(tsk);
 
 	/* locate or allocate a new css_set for this task. */
 	if (guarantee) {
@@ -1775,20 +1870,11 @@ static int cgroup_task_migrate(struct cgroup *cgrp, struct cgroup *oldcgrp,
 		might_sleep();
 		/* find_css_set will give us newcg already referenced. */
 		newcg = find_css_set(oldcg, cgrp);
-		if (!newcg) {
-			put_css_set(oldcg);
+		if (!newcg)
 			return -ENOMEM;
-		}
 	}
-	put_css_set(oldcg);
 
-	/* if PF_EXITING is set, the tsk->cgroups pointer is no longer safe. */
 	task_lock(tsk);
-	if (tsk->flags & PF_EXITING) {
-		task_unlock(tsk);
-		put_css_set(newcg);
-		return -ESRCH;
-	}
 	rcu_assign_pointer(tsk->cgroups, newcg);
 	task_unlock(tsk);
 
@@ -1814,8 +1900,8 @@ static int cgroup_task_migrate(struct cgroup *cgrp, struct cgroup *oldcgrp,
  * @cgrp: the cgroup the task is attaching to
  * @tsk: the task to be attached
  *
- * Call holding cgroup_mutex. May take task_lock of
- * the task 'tsk' during call.
+ * Call with cgroup_mutex and threadgroup locked. May take task_lock of
+ * @tsk during call.
  */
 int cgroup_attach_task(struct cgroup *cgrp, struct task_struct *tsk)
 {
@@ -1823,15 +1909,23 @@ int cgroup_attach_task(struct cgroup *cgrp, struct task_struct *tsk)
 	struct cgroup_subsys *ss, *failed_ss = NULL;
 	struct cgroup *oldcgrp;
 	struct cgroupfs_root *root = cgrp->root;
+	struct cgroup_taskset tset = { };
+
+	/* @tsk either already exited or can't exit until the end */
+	if (tsk->flags & PF_EXITING)
+		return -ESRCH;
 
 	/* Nothing to do if the task is already in that cgroup */
 	oldcgrp = task_cgroup_from_root(tsk, root);
 	if (cgrp == oldcgrp)
 		return 0;
 
+	tset.single.task = tsk;
+	tset.single.cgrp = oldcgrp;
+
 	for_each_subsys(root, ss) {
 		if (ss->can_attach) {
-			retval = ss->can_attach(ss, cgrp, tsk);
+			retval = ss->can_attach(ss, cgrp, &tset);
 			if (retval) {
 				/*
 				 * Remember on which subsystem the can_attach()
@@ -1843,13 +1937,6 @@ int cgroup_attach_task(struct cgroup *cgrp, struct task_struct *tsk)
 				goto out;
 			}
 		}
-		if (ss->can_attach_task) {
-			retval = ss->can_attach_task(cgrp, tsk);
-			if (retval) {
-				failed_ss = ss;
-				goto out;
-			}
-		}
 	}
 
 	retval = cgroup_task_migrate(cgrp, oldcgrp, tsk, false);
@@ -1857,12 +1944,8 @@ int cgroup_attach_task(struct cgroup *cgrp, struct task_struct *tsk)
 		goto out;
 
 	for_each_subsys(root, ss) {
-		if (ss->pre_attach)
-			ss->pre_attach(cgrp);
-		if (ss->attach_task)
-			ss->attach_task(cgrp, tsk);
 		if (ss->attach)
-			ss->attach(ss, cgrp, oldcgrp, tsk);
+			ss->attach(ss, cgrp, &tset);
 	}
 
 	synchronize_rcu();
@@ -1884,7 +1967,7 @@ out:
 				 */
 				break;
 			if (ss->cancel_attach)
-				ss->cancel_attach(ss, cgrp, tsk);
+				ss->cancel_attach(ss, cgrp, &tset);
 		}
 	}
 	return retval;
@@ -1935,23 +2018,17 @@ static bool css_set_check_fetched(struct cgroup *cgrp,
 
 	read_lock(&css_set_lock);
 	newcg = find_existing_css_set(cg, cgrp, template);
-	if (newcg)
-		get_css_set(newcg);
 	read_unlock(&css_set_lock);
 
 	/* doesn't exist at all? */
 	if (!newcg)
 		return false;
 	/* see if it's already in the list */
-	list_for_each_entry(cg_entry, newcg_list, links) {
-		if (cg_entry->cg == newcg) {
-			put_css_set(newcg);
+	list_for_each_entry(cg_entry, newcg_list, links)
+		if (cg_entry->cg == newcg)
 			return true;
-		}
-	}
 
 	/* not found */
-	put_css_set(newcg);
 	return false;
 }
 
@@ -1985,21 +2062,21 @@ static int css_set_prefetch(struct cgroup *cgrp, struct css_set *cg,
  * @cgrp: the cgroup to attach to
  * @leader: the threadgroup leader task_struct of the group to be attached
  *
- * Call holding cgroup_mutex and the threadgroup_fork_lock of the leader. Will
- * take task_lock of each thread in leader's threadgroup individually in turn.
+ * Call holding cgroup_mutex and the group_rwsem of the leader. Will take
+ * task_lock of each thread in leader's threadgroup individually in turn.
  */
-int cgroup_attach_proc(struct cgroup *cgrp, struct task_struct *leader)
+static int cgroup_attach_proc(struct cgroup *cgrp, struct task_struct *leader)
 {
 	int retval, i, group_size;
 	struct cgroup_subsys *ss, *failed_ss = NULL;
-	bool cancel_failed_ss = false;
 	/* guaranteed to be initialized later, but the compiler needs this */
-	struct cgroup *oldcgrp = NULL;
 	struct css_set *oldcg;
 	struct cgroupfs_root *root = cgrp->root;
 	/* threadgroup list cursor and array */
 	struct task_struct *tsk;
+	struct task_and_cgroup *tc;
 	struct flex_array *group;
+	struct cgroup_taskset tset = { };
 	/*
 	 * we need to make sure we have css_sets for all the tasks we're
 	 * going to move -before- we actually start moving them, so that in
@@ -2012,13 +2089,12 @@ int cgroup_attach_proc(struct cgroup *cgrp, struct task_struct *leader)
 	 * step 0: in order to do expensive, possibly blocking operations for
 	 * every thread, we cannot iterate the thread group list, since it needs
 	 * rcu or tasklist locked. instead, build an array of all threads in the
-	 * group - threadgroup_fork_lock prevents new threads from appearing,
-	 * and if threads exit, this will just be an over-estimate.
+	 * group - group_rwsem prevents new threads from appearing, and if
+	 * threads exit, this will just be an over-estimate.
 	 */
 	group_size = get_nr_threads(leader);
 	/* flex_array supports very large thread-groups better than kmalloc. */
-	group = flex_array_alloc(sizeof(struct task_struct *), group_size,
-				 GFP_KERNEL);
+	group = flex_array_alloc(sizeof(*tc), group_size, GFP_KERNEL);
 	if (!group)
 		return -ENOMEM;
 	/* pre-allocate to guarantee space while iterating in rcu read-side. */
@@ -2040,49 +2116,53 @@ int cgroup_attach_proc(struct cgroup *cgrp, struct task_struct *leader)
 		retval = -EAGAIN;
 		goto out_free_group_list;
 	}
-	/* take a reference on each task in the group to go in the array. */
+
 	tsk = leader;
 	i = 0;
 	do {
+		struct task_and_cgroup ent;
+
+		/* @tsk either already exited or can't exit until the end */
+		if (tsk->flags & PF_EXITING)
+			continue;
+
 		/* as per above, nr_threads may decrease, but not increase. */
 		BUG_ON(i >= group_size);
-		get_task_struct(tsk);
 		/*
 		 * saying GFP_ATOMIC has no effect here because we did prealloc
 		 * earlier, but it's good form to communicate our expectations.
 		 */
-		retval = flex_array_put_ptr(group, i, tsk, GFP_ATOMIC);
+		ent.task = tsk;
+		ent.cgrp = task_cgroup_from_root(tsk, root);
+		/* nothing to do if this task is already in the cgroup */
+		if (ent.cgrp == cgrp)
+			continue;
+		retval = flex_array_put(group, i, &ent, GFP_ATOMIC);
 		BUG_ON(retval != 0);
 		i++;
 	} while_each_thread(leader, tsk);
 	/* remember the number of threads in the array for later. */
 	group_size = i;
+	tset.tc_array = group;
+	tset.tc_array_len = group_size;
 	read_unlock(&tasklist_lock);
 
+	/* methods shouldn't be called if no task is actually migrating */
+	retval = 0;
+	if (!group_size)
+		goto out_free_group_list;
+
 	/*
 	 * step 1: check that we can legitimately attach to the cgroup.
 	 */
 	for_each_subsys(root, ss) {
 		if (ss->can_attach) {
-			retval = ss->can_attach(ss, cgrp, leader);
+			retval = ss->can_attach(ss, cgrp, &tset);
 			if (retval) {
 				failed_ss = ss;
 				goto out_cancel_attach;
 			}
 		}
-		/* a callback to be run on every thread in the threadgroup. */
-		if (ss->can_attach_task) {
-			/* run on each task in the threadgroup. */
-			for (i = 0; i < group_size; i++) {
-				tsk = flex_array_get_ptr(group, i);
-				retval = ss->can_attach_task(cgrp, tsk);
-				if (retval) {
-					failed_ss = ss;
-					cancel_failed_ss = true;
-					goto out_cancel_attach;
-				}
-			}
-		}
 	}
 
 	/*
@@ -2091,67 +2171,36 @@ int cgroup_attach_proc(struct cgroup *cgrp, struct task_struct *leader)
 	 */
 	INIT_LIST_HEAD(&newcg_list);
 	for (i = 0; i < group_size; i++) {
-		tsk = flex_array_get_ptr(group, i);
-		/* nothing to do if this task is already in the cgroup */
-		oldcgrp = task_cgroup_from_root(tsk, root);
-		if (cgrp == oldcgrp)
-			continue;
-		/* get old css_set pointer */
-		task_lock(tsk);
-		oldcg = tsk->cgroups;
-		get_css_set(oldcg);
-		task_unlock(tsk);
-		/* see if the new one for us is already in the list? */
-		if (css_set_check_fetched(cgrp, tsk, oldcg, &newcg_list)) {
-			/* was already there, nothing to do. */
-			put_css_set(oldcg);
-		} else {
-			/* we don't already have it. get new one. */
+		tc = flex_array_get(group, i);
+		oldcg = tc->task->cgroups;
+
+		/* if we don't already have it in the list get a new one */
+		if (!css_set_check_fetched(cgrp, tc->task, oldcg,
+					   &newcg_list)) {
 			retval = css_set_prefetch(cgrp, oldcg, &newcg_list);
-			put_css_set(oldcg);
 			if (retval)
 				goto out_list_teardown;
 		}
 	}
 
 	/*
-	 * step 3: now that we're guaranteed success wrt the css_sets, proceed
-	 * to move all tasks to the new cgroup, calling ss->attach_task for each
-	 * one along the way. there are no failure cases after here, so this is
-	 * the commit point.
+	 * step 3: now that we're guaranteed success wrt the css_sets,
+	 * proceed to move all tasks to the new cgroup.  There are no
+	 * failure cases after here, so this is the commit point.
 	 */
-	for_each_subsys(root, ss) {
-		if (ss->pre_attach)
-			ss->pre_attach(cgrp);
-	}
 	for (i = 0; i < group_size; i++) {
-		tsk = flex_array_get_ptr(group, i);
-		/* leave current thread as it is if it's already there */
-		oldcgrp = task_cgroup_from_root(tsk, root);
-		if (cgrp == oldcgrp)
-			continue;
-		/* if the thread is PF_EXITING, it can just get skipped. */
-		retval = cgroup_task_migrate(cgrp, oldcgrp, tsk, true);
-		if (retval == 0) {
-			/* attach each task to each subsystem */
-			for_each_subsys(root, ss) {
-				if (ss->attach_task)
-					ss->attach_task(cgrp, tsk);
-			}
-		} else {
-			BUG_ON(retval != -ESRCH);
-		}
+		tc = flex_array_get(group, i);
+		retval = cgroup_task_migrate(cgrp, tc->cgrp, tc->task, true);
+		BUG_ON(retval);
 	}
 	/* nothing is sensitive to fork() after this point. */
 
 	/*
-	 * step 4: do expensive, non-thread-specific subsystem callbacks.
-	 * TODO: if ever a subsystem needs to know the oldcgrp for each task
-	 * being moved, this call will need to be reworked to communicate that.
+	 * step 4: do subsystem attach callbacks.
 	 */
 	for_each_subsys(root, ss) {
 		if (ss->attach)
-			ss->attach(ss, cgrp, oldcgrp, leader);
+			ss->attach(ss, cgrp, &tset);
 	}
 
 	/*
@@ -2171,20 +2220,12 @@ out_cancel_attach:
 	/* same deal as in cgroup_attach_task */
 	if (retval) {
 		for_each_subsys(root, ss) {
-			if (ss == failed_ss) {
-				if (cancel_failed_ss && ss->cancel_attach)
-					ss->cancel_attach(ss, cgrp, leader);
+			if (ss == failed_ss)
 				break;
-			}
 			if (ss->cancel_attach)
-				ss->cancel_attach(ss, cgrp, leader);
+				ss->cancel_attach(ss, cgrp, &tset);
 		}
 	}
-	/* clean up the array of referenced threads in the group. */
-	for (i = 0; i < group_size; i++) {
-		tsk = flex_array_get_ptr(group, i);
-		put_task_struct(tsk);
-	}
 out_free_group_list:
 	flex_array_free(group);
 	return retval;
@@ -2192,8 +2233,8 @@ out_free_group_list:
 
 /*
  * Find the task_struct of the task to attach by vpid and pass it along to the
- * function to attach either it or all tasks in its threadgroup. Will take
- * cgroup_mutex; may take task_lock of task.
+ * function to attach either it or all tasks in its threadgroup. Will lock
+ * cgroup_mutex and threadgroup; may take task_lock of task.
  */
 static int attach_task_by_pid(struct cgroup *cgrp, u64 pid, bool threadgroup)
 {
@@ -2220,13 +2261,7 @@ static int attach_task_by_pid(struct cgroup *cgrp, u64 pid, bool threadgroup)
 			 * detect it later.
 			 */
 			tsk = tsk->group_leader;
-		} else if (tsk->flags & PF_EXITING) {
-			/* optimization for the single-task-only case */
-			rcu_read_unlock();
-			cgroup_unlock();
-			return -ESRCH;
 		}
-
 		/*
 		 * even if we're attaching all tasks in the thread group, we
 		 * only need to check permissions on one of them.
@@ -2249,13 +2284,15 @@ static int attach_task_by_pid(struct cgroup *cgrp, u64 pid, bool threadgroup)
 		get_task_struct(tsk);
 	}
 
-	if (threadgroup) {
-		threadgroup_fork_write_lock(tsk);
+	threadgroup_lock(tsk);
+
+	if (threadgroup)
 		ret = cgroup_attach_proc(cgrp, tsk);
-		threadgroup_fork_write_unlock(tsk);
-	} else {
+	else
 		ret = cgroup_attach_task(cgrp, tsk);
-	}
+
+	threadgroup_unlock(tsk);
+
 	put_task_struct(tsk);
 	cgroup_unlock();
 	return ret;
@@ -2306,7 +2343,9 @@ static int cgroup_release_agent_write(struct cgroup *cgrp, struct cftype *cft,
 		return -EINVAL;
 	if (!cgroup_lock_live_group(cgrp))
 		return -ENODEV;
+	mutex_lock(&cgroup_root_mutex);
 	strcpy(cgrp->root->release_agent_path, buffer);
+	mutex_unlock(&cgroup_root_mutex);
 	cgroup_unlock();
 	return 0;
 }
@@ -2789,6 +2828,7 @@ static void cgroup_enable_task_cg_lists(void)
 }
 
 void cgroup_iter_start(struct cgroup *cgrp, struct cgroup_iter *it)
+	__acquires(css_set_lock)
 {
 	/*
 	 * The first time anyone tries to iterate across a cgroup,
@@ -2828,6 +2868,7 @@ struct task_struct *cgroup_iter_next(struct cgroup *cgrp,
 }
 
 void cgroup_iter_end(struct cgroup *cgrp, struct cgroup_iter *it)
+	__releases(css_set_lock)
 {
 	read_unlock(&css_set_lock);
 }
@@ -4491,20 +4532,31 @@ static const struct file_operations proc_cgroupstats_operations = {
  *
  * A pointer to the shared css_set was automatically copied in
  * fork.c by dup_task_struct().  However, we ignore that copy, since
- * it was not made under the protection of RCU or cgroup_mutex, so
- * might no longer be a valid cgroup pointer.  cgroup_attach_task() might
- * have already changed current->cgroups, allowing the previously
- * referenced cgroup group to be removed and freed.
+ * it was not made under the protection of RCU, cgroup_mutex or
+ * threadgroup_change_begin(), so it might no longer be a valid
+ * cgroup pointer.  cgroup_attach_task() might have already changed
+ * current->cgroups, allowing the previously referenced cgroup
+ * group to be removed and freed.
+ *
+ * Outside the pointer validity we also need to process the css_set
+ * inheritance between threadgoup_change_begin() and
+ * threadgoup_change_end(), this way there is no leak in any process
+ * wide migration performed by cgroup_attach_proc() that could otherwise
+ * miss a thread because it is too early or too late in the fork stage.
  *
  * At the point that cgroup_fork() is called, 'current' is the parent
  * task, and the passed argument 'child' points to the child task.
  */
 void cgroup_fork(struct task_struct *child)
 {
-	task_lock(current);
+	/*
+	 * We don't need to task_lock() current because current->cgroups
+	 * can't be changed concurrently here. The parent obviously hasn't
+	 * exited and called cgroup_exit(), and we are synchronized against
+	 * cgroup migration through threadgroup_change_begin().
+	 */
 	child->cgroups = current->cgroups;
 	get_css_set(child->cgroups);
-	task_unlock(current);
 	INIT_LIST_HEAD(&child->cg_list);
 }
 
@@ -4546,10 +4598,19 @@ void cgroup_post_fork(struct task_struct *child)
 {
 	if (use_task_css_set_links) {
 		write_lock(&css_set_lock);
-		task_lock(child);
-		if (list_empty(&child->cg_list))
+		if (list_empty(&child->cg_list)) {
+			/*
+			 * It's safe to use child->cgroups without task_lock()
+			 * here because we are protected through
+			 * threadgroup_change_begin() against concurrent
+			 * css_set change in cgroup_task_migrate(). Also
+			 * the task can't exit at that point until
+			 * wake_up_new_task() is called, so we are protected
+			 * against cgroup_exit() setting child->cgroup to
+			 * init_css_set.
+			 */
 			list_add(&child->cg_list, &child->cgroups->tasks);
-		task_unlock(child);
+		}
 		write_unlock(&css_set_lock);
 	}
 }
diff --git a/kernel/cgroup_freezer.c b/kernel/cgroup_freezer.c
index fcb93fca782d..fc0646b78a64 100644
--- a/kernel/cgroup_freezer.c
+++ b/kernel/cgroup_freezer.c
@@ -166,13 +166,17 @@ static bool is_task_frozen_enough(struct task_struct *task)
  */
 static int freezer_can_attach(struct cgroup_subsys *ss,
 			      struct cgroup *new_cgroup,
-			      struct task_struct *task)
+			      struct cgroup_taskset *tset)
 {
 	struct freezer *freezer;
+	struct task_struct *task;
 
 	/*
 	 * Anything frozen can't move or be moved to/from.
 	 */
+	cgroup_taskset_for_each(task, new_cgroup, tset)
+		if (cgroup_freezing(task))
+			return -EBUSY;
 
 	freezer = cgroup_freezer(new_cgroup);
 	if (freezer->state != CGROUP_THAWED)
@@ -181,11 +185,6 @@ static int freezer_can_attach(struct cgroup_subsys *ss,
 	return 0;
 }
 
-static int freezer_can_attach_task(struct cgroup *cgrp, struct task_struct *tsk)
-{
-	return cgroup_freezing(tsk) ? -EBUSY : 0;
-}
-
 static void freezer_fork(struct cgroup_subsys *ss, struct task_struct *task)
 {
 	struct freezer *freezer;
@@ -381,10 +380,5 @@ struct cgroup_subsys freezer_subsys = {
 	.populate	= freezer_populate,
 	.subsys_id	= freezer_subsys_id,
 	.can_attach	= freezer_can_attach,
-	.can_attach_task = freezer_can_attach_task,
-	.pre_attach	= NULL,
-	.attach_task	= NULL,
-	.attach		= NULL,
 	.fork		= freezer_fork,
-	.exit		= NULL,
 };
diff --git a/kernel/cpuset.c b/kernel/cpuset.c
index 0b1712dba587..a09ac2b9a661 100644
--- a/kernel/cpuset.c
+++ b/kernel/cpuset.c
@@ -1389,79 +1389,73 @@ static int fmeter_getrate(struct fmeter *fmp)
 	return val;
 }
 
-/* Called by cgroups to determine if a cpuset is usable; cgroup_mutex held */
-static int cpuset_can_attach(struct cgroup_subsys *ss, struct cgroup *cont,
-			     struct task_struct *tsk)
-{
-	struct cpuset *cs = cgroup_cs(cont);
-
-	if (cpumask_empty(cs->cpus_allowed) || nodes_empty(cs->mems_allowed))
-		return -ENOSPC;
-
-	/*
-	 * Kthreads bound to specific cpus cannot be moved to a new cpuset; we
-	 * cannot change their cpu affinity and isolating such threads by their
-	 * set of allowed nodes is unnecessary.  Thus, cpusets are not
-	 * applicable for such threads.  This prevents checking for success of
-	 * set_cpus_allowed_ptr() on all attached tasks before cpus_allowed may
-	 * be changed.
-	 */
-	if (tsk->flags & PF_THREAD_BOUND)
-		return -EINVAL;
-
-	return 0;
-}
-
-static int cpuset_can_attach_task(struct cgroup *cgrp, struct task_struct *task)
-{
-	return security_task_setscheduler(task);
-}
-
 /*
  * Protected by cgroup_lock. The nodemasks must be stored globally because
- * dynamically allocating them is not allowed in pre_attach, and they must
- * persist among pre_attach, attach_task, and attach.
+ * dynamically allocating them is not allowed in can_attach, and they must
+ * persist until attach.
  */
 static cpumask_var_t cpus_attach;
 static nodemask_t cpuset_attach_nodemask_from;
 static nodemask_t cpuset_attach_nodemask_to;
 
-/* Set-up work for before attaching each task. */
-static void cpuset_pre_attach(struct cgroup *cont)
+/* Called by cgroups to determine if a cpuset is usable; cgroup_mutex held */
+static int cpuset_can_attach(struct cgroup_subsys *ss, struct cgroup *cgrp,
+			     struct cgroup_taskset *tset)
 {
-	struct cpuset *cs = cgroup_cs(cont);
+	struct cpuset *cs = cgroup_cs(cgrp);
+	struct task_struct *task;
+	int ret;
+
+	if (cpumask_empty(cs->cpus_allowed) || nodes_empty(cs->mems_allowed))
+		return -ENOSPC;
+
+	cgroup_taskset_for_each(task, cgrp, tset) {
+		/*
+		 * Kthreads bound to specific cpus cannot be moved to a new
+		 * cpuset; we cannot change their cpu affinity and
+		 * isolating such threads by their set of allowed nodes is
+		 * unnecessary.  Thus, cpusets are not applicable for such
+		 * threads.  This prevents checking for success of
+		 * set_cpus_allowed_ptr() on all attached tasks before
+		 * cpus_allowed may be changed.
+		 */
+		if (task->flags & PF_THREAD_BOUND)
+			return -EINVAL;
+		if ((ret = security_task_setscheduler(task)))
+			return ret;
+	}
 
+	/* prepare for attach */
 	if (cs == &top_cpuset)
 		cpumask_copy(cpus_attach, cpu_possible_mask);
 	else
 		guarantee_online_cpus(cs, cpus_attach);
 
 	guarantee_online_mems(cs, &cpuset_attach_nodemask_to);
-}
-
-/* Per-thread attachment work. */
-static void cpuset_attach_task(struct cgroup *cont, struct task_struct *tsk)
-{
-	int err;
-	struct cpuset *cs = cgroup_cs(cont);
 
-	/*
-	 * can_attach beforehand should guarantee that this doesn't fail.
-	 * TODO: have a better way to handle failure here
-	 */
-	err = set_cpus_allowed_ptr(tsk, cpus_attach);
-	WARN_ON_ONCE(err);
-
-	cpuset_change_task_nodemask(tsk, &cpuset_attach_nodemask_to);
-	cpuset_update_task_spread_flag(cs, tsk);
+	return 0;
 }
 
-static void cpuset_attach(struct cgroup_subsys *ss, struct cgroup *cont,
-			  struct cgroup *oldcont, struct task_struct *tsk)
+static void cpuset_attach(struct cgroup_subsys *ss, struct cgroup *cgrp,
+			  struct cgroup_taskset *tset)
 {
 	struct mm_struct *mm;
-	struct cpuset *cs = cgroup_cs(cont);
-	struct cpuset *oldcs = cgroup_cs(oldcont);
+	struct task_struct *task;
+	struct task_struct *leader = cgroup_taskset_first(tset);
+	struct cgroup *oldcgrp = cgroup_taskset_cur_cgroup(tset);
+	struct cpuset *cs = cgroup_cs(cgrp);
+	struct cpuset *oldcs = cgroup_cs(oldcgrp);
+
+	cgroup_taskset_for_each(task, cgrp, tset) {
+		/*
+		 * can_attach beforehand should guarantee that this doesn't
+		 * fail.  TODO: have a better way to handle failure here
+		 */
+		WARN_ON_ONCE(set_cpus_allowed_ptr(task, cpus_attach));
+
+		cpuset_change_task_nodemask(task, &cpuset_attach_nodemask_to);
+		cpuset_update_task_spread_flag(cs, task);
+	}
 
 	/*
 	 * Change mm, possibly for multiple threads in a threadgroup. This is
@@ -1469,7 +1463,7 @@ static void cpuset_attach(struct cgroup_subsys *ss, struct cgroup *cont,
 	 */
 	cpuset_attach_nodemask_from = oldcs->mems_allowed;
 	cpuset_attach_nodemask_to = cs->mems_allowed;
-	mm = get_task_mm(tsk);
+	mm = get_task_mm(leader);
 	if (mm) {
 		mpol_rebind_mm(mm, &cpuset_attach_nodemask_to);
 		if (is_memory_migrate(cs))
@@ -1925,9 +1919,6 @@ struct cgroup_subsys cpuset_subsys = {
 	.create = cpuset_create,
 	.destroy = cpuset_destroy,
 	.can_attach = cpuset_can_attach,
-	.can_attach_task = cpuset_can_attach_task,
-	.pre_attach = cpuset_pre_attach,
-	.attach_task = cpuset_attach_task,
 	.attach = cpuset_attach,
 	.populate = cpuset_populate,
 	.post_clone = cpuset_post_clone,
diff --git a/kernel/events/core.c b/kernel/events/core.c
index 3afc68c08433..a8f4ac001a00 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -6941,10 +6941,13 @@ static int __perf_cgroup_move(void *info)
 	return 0;
 }
 
-static void
-perf_cgroup_attach_task(struct cgroup *cgrp, struct task_struct *task)
+static void perf_cgroup_attach(struct cgroup_subsys *ss, struct cgroup *cgrp,
+			       struct cgroup_taskset *tset)
 {
-	task_function_call(task, __perf_cgroup_move, task);
+	struct task_struct *task;
+
+	cgroup_taskset_for_each(task, cgrp, tset)
+		task_function_call(task, __perf_cgroup_move, task);
 }
 
 static void perf_cgroup_exit(struct cgroup_subsys *ss, struct cgroup *cgrp,
@@ -6958,7 +6961,7 @@ static void perf_cgroup_exit(struct cgroup_subsys *ss, struct cgroup *cgrp,
 	if (!(task->flags & PF_EXITING))
 		return;
 
-	perf_cgroup_attach_task(cgrp, task);
+	task_function_call(task, __perf_cgroup_move, task);
 }
 
 struct cgroup_subsys perf_subsys = {
@@ -6967,6 +6970,6 @@ struct cgroup_subsys perf_subsys = {
 	.create		= perf_cgroup_create,
 	.destroy	= perf_cgroup_destroy,
 	.exit		= perf_cgroup_exit,
-	.attach_task	= perf_cgroup_attach_task,
+	.attach		= perf_cgroup_attach,
 };
 #endif /* CONFIG_CGROUP_PERF */
diff --git a/kernel/exit.c b/kernel/exit.c
index d9eab2e4b430..94ed6e20bb53 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -51,6 +51,7 @@
 #include <trace/events/sched.h>
 #include <linux/hw_breakpoint.h>
 #include <linux/oom.h>
+#include <linux/writeback.h>
 
 #include <asm/uaccess.h>
 #include <asm/unistd.h>
@@ -1035,6 +1036,8 @@ NORET_TYPE void do_exit(long code)
 	validate_creds_for_do_exit(tsk);
 
 	preempt_disable();
+	if (tsk->nr_dirtied)
+		__this_cpu_add(dirty_throttle_leaks, tsk->nr_dirtied);
 	exit_rcu();
 	/* causes final put_task_struct in finish_task_switch(). */
 	tsk->state = TASK_DEAD;
diff --git a/kernel/fork.c b/kernel/fork.c
index f34f894c4b98..443f5125f11e 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -76,6 +76,9 @@
 
 #include <trace/events/sched.h>
 
+#define CREATE_TRACE_POINTS
+#include <trace/events/task.h>
+
 /*
  * Protected counters by write_lock_irq(&tasklist_lock)
  */
@@ -972,7 +975,7 @@ static int copy_signal(unsigned long clone_flags, struct task_struct *tsk)
 	sched_autogroup_fork(sig);
 
 #ifdef CONFIG_CGROUPS
-	init_rwsem(&sig->threadgroup_fork_lock);
+	init_rwsem(&sig->group_rwsem);
 #endif
 
 	sig->oom_adj = current->signal->oom_adj;
@@ -1153,7 +1156,7 @@ static struct task_struct *copy_process(unsigned long clone_flags,
 	p->io_context = NULL;
 	p->audit_context = NULL;
 	if (clone_flags & CLONE_THREAD)
-		threadgroup_fork_read_lock(current);
+		threadgroup_change_begin(current);
 	cgroup_fork(p);
 #ifdef CONFIG_NUMA
 	p->mempolicy = mpol_dup(p->mempolicy);
@@ -1291,6 +1294,7 @@ static struct task_struct *copy_process(unsigned long clone_flags,
 
 	p->nr_dirtied = 0;
 	p->nr_dirtied_pause = 128 >> (PAGE_SHIFT - 10);
+	p->dirty_paused_when = 0;
 
 	/*
 	 * Ok, make it visible to the rest of the system.
@@ -1368,8 +1372,11 @@ static struct task_struct *copy_process(unsigned long clone_flags,
 	proc_fork_connector(p);
 	cgroup_post_fork(p);
 	if (clone_flags & CLONE_THREAD)
-		threadgroup_fork_read_unlock(current);
+		threadgroup_change_end(current);
 	perf_event_fork(p);
+
+	trace_task_newtask(p, clone_flags);
+
 	return p;
 
 bad_fork_free_pid:
@@ -1403,7 +1410,7 @@ bad_fork_cleanup_policy:
 bad_fork_cleanup_cgroup:
 #endif
 	if (clone_flags & CLONE_THREAD)
-		threadgroup_fork_read_unlock(current);
+		threadgroup_change_end(current);
 	cgroup_exit(p, cgroup_callbacks_done);
 	delayacct_tsk_free(p);
 	module_put(task_thread_info(p)->exec_domain->module);
diff --git a/kernel/jump_label.c b/kernel/jump_label.c
index 30c3c7708132..01d3b70fc98a 100644
--- a/kernel/jump_label.c
+++ b/kernel/jump_label.c
@@ -71,6 +71,7 @@ void jump_label_inc(struct jump_label_key *key)
 	atomic_inc(&key->enabled);
 	jump_label_unlock();
 }
+EXPORT_SYMBOL_GPL(jump_label_inc);
 
 static void __jump_label_dec(struct jump_label_key *key,
 		unsigned long rate_limit, struct delayed_work *work)
@@ -86,6 +87,7 @@ static void __jump_label_dec(struct jump_label_key *key,
 
 	jump_label_unlock();
 }
+EXPORT_SYMBOL_GPL(jump_label_dec);
 
 static void jump_label_update_timeout(struct work_struct *work)
 {
diff --git a/kernel/power/snapshot.c b/kernel/power/snapshot.c
index cbe2c1441392..1cf88900ec4f 100644
--- a/kernel/power/snapshot.c
+++ b/kernel/power/snapshot.c
@@ -858,6 +858,9 @@ static struct page *saveable_highmem_page(struct zone *zone, unsigned long pfn)
 	    PageReserved(page))
 		return NULL;
 
+	if (page_is_guard(page))
+		return NULL;
+
 	return page;
 }
 
@@ -920,6 +923,9 @@ static struct page *saveable_page(struct zone *zone, unsigned long pfn)
 	    && (!kernel_page_present(page) || pfn_is_nosave(pfn)))
 		return NULL;
 
+	if (page_is_guard(page))
+		return NULL;
+
 	return page;
 }
 
diff --git a/kernel/res_counter.c b/kernel/res_counter.c
index 34683efa2cce..6d269cce7aa1 100644
--- a/kernel/res_counter.c
+++ b/kernel/res_counter.c
@@ -159,8 +159,7 @@ int res_counter_memparse_write_strategy(const char *buf,
 		return 0;
 	}
 
-	/* FIXME - make memparse() take const char* args */
-	*res = memparse((char *)buf, &end);
+	*res = memparse(buf, &end);
 	if (*end != '\0')
 		return -EINVAL;
 
diff --git a/kernel/sched/core.c b/kernel/sched/core.c
index 0ac0f811d623..cecbb64be05f 100644
--- a/kernel/sched/core.c
+++ b/kernel/sched/core.c
@@ -7563,24 +7563,31 @@ cpu_cgroup_destroy(struct cgroup_subsys *ss, struct cgroup *cgrp)
 	sched_destroy_group(tg);
 }
 
-static int
-cpu_cgroup_can_attach_task(struct cgroup *cgrp, struct task_struct *tsk)
+static int cpu_cgroup_can_attach(struct cgroup_subsys *ss, struct cgroup *cgrp,
+				 struct cgroup_taskset *tset)
 {
+	struct task_struct *task;
+
+	cgroup_taskset_for_each(task, cgrp, tset) {
 #ifdef CONFIG_RT_GROUP_SCHED
-	if (!sched_rt_can_attach(cgroup_tg(cgrp), tsk))
-		return -EINVAL;
+		if (!sched_rt_can_attach(cgroup_tg(cgrp), task))
+			return -EINVAL;
 #else
-	/* We don't support RT-tasks being in separate groups */
-	if (tsk->sched_class != &fair_sched_class)
-		return -EINVAL;
+		/* We don't support RT-tasks being in separate groups */
+		if (task->sched_class != &fair_sched_class)
+			return -EINVAL;
 #endif
+	}
 	return 0;
 }
 
-static void
-cpu_cgroup_attach_task(struct cgroup *cgrp, struct task_struct *tsk)
+static void cpu_cgroup_attach(struct cgroup_subsys *ss, struct cgroup *cgrp,
+			      struct cgroup_taskset *tset)
 {
-	sched_move_task(tsk);
+	struct task_struct *task;
+
+	cgroup_taskset_for_each(task, cgrp, tset)
+		sched_move_task(task);
 }
 
 static void
@@ -7915,8 +7922,8 @@ struct cgroup_subsys cpu_cgroup_subsys = {
 	.name		= "cpu",
 	.create		= cpu_cgroup_create,
 	.destroy	= cpu_cgroup_destroy,
-	.can_attach_task = cpu_cgroup_can_attach_task,
-	.attach_task	= cpu_cgroup_attach_task,
+	.can_attach	= cpu_cgroup_can_attach,
+	.attach		= cpu_cgroup_attach,
 	.exit		= cpu_cgroup_exit,
 	.populate	= cpu_cgroup_populate,
 	.subsys_id	= cpu_cgroup_subsys_id,
diff --git a/kernel/signal.c b/kernel/signal.c
index 56ce3a618b28..c73c4284160e 100644
--- a/kernel/signal.c
+++ b/kernel/signal.c
@@ -28,6 +28,7 @@
 #include <linux/freezer.h>
 #include <linux/pid_namespace.h>
 #include <linux/nsproxy.h>
+#include <linux/user_namespace.h>
 #define CREATE_TRACE_POINTS
 #include <trace/events/signal.h>
 
@@ -1019,6 +1020,34 @@ static inline int legacy_queue(struct sigpending *signals, int sig)
 	return (sig < SIGRTMIN) && sigismember(&signals->signal, sig);
 }
 
+/*
+ * map the uid in struct cred into user namespace *ns
+ */
+static inline uid_t map_cred_ns(const struct cred *cred,
+				struct user_namespace *ns)
+{
+	return user_ns_map_uid(ns, cred, cred->uid);
+}
+
+#ifdef CONFIG_USER_NS
+static inline void userns_fixup_signal_uid(struct siginfo *info, struct task_struct *t)
+{
+	if (current_user_ns() == task_cred_xxx(t, user_ns))
+		return;
+
+	if (SI_FROMKERNEL(info))
+		return;
+
+	info->si_uid = user_ns_map_uid(task_cred_xxx(t, user_ns),
+					current_cred(), info->si_uid);
+}
+#else
+static inline void userns_fixup_signal_uid(struct siginfo *info, struct task_struct *t)
+{
+	return;
+}
+#endif
+
 static int __send_signal(int sig, struct siginfo *info, struct task_struct *t,
 			int group, int from_ancestor_ns)
 {
@@ -1088,6 +1117,9 @@ static int __send_signal(int sig, struct siginfo *info, struct task_struct *t,
 				q->info.si_pid = 0;
 			break;
 		}
+
+		userns_fixup_signal_uid(&q->info, t);
+
 	} else if (!is_si_special(info)) {
 		if (sig >= SIGRTMIN && info->si_code != SI_USER) {
 			/*
@@ -1626,7 +1658,8 @@ bool do_notify_parent(struct task_struct *tsk, int sig)
 	 */
 	rcu_read_lock();
 	info.si_pid = task_pid_nr_ns(tsk, tsk->parent->nsproxy->pid_ns);
-	info.si_uid = __task_cred(tsk)->uid;
+	info.si_uid = map_cred_ns(__task_cred(tsk),
+			task_cred_xxx(tsk->parent, user_ns));
 	rcu_read_unlock();
 
 	info.si_utime = cputime_to_clock_t(tsk->utime + tsk->signal->utime);
@@ -1709,7 +1742,8 @@ static void do_notify_parent_cldstop(struct task_struct *tsk,
 	 */
 	rcu_read_lock();
 	info.si_pid = task_pid_nr_ns(tsk, parent->nsproxy->pid_ns);
-	info.si_uid = __task_cred(tsk)->uid;
+	info.si_uid = map_cred_ns(__task_cred(tsk),
+			task_cred_xxx(parent, user_ns));
 	rcu_read_unlock();
 
 	info.si_utime = cputime_to_clock_t(tsk->utime);
@@ -2125,8 +2159,11 @@ static int ptrace_signal(int signr, siginfo_t *info,
 		info->si_signo = signr;
 		info->si_errno = 0;
 		info->si_code = SI_USER;
+		rcu_read_lock();
 		info->si_pid = task_pid_vnr(current->parent);
-		info->si_uid = task_uid(current->parent);
+		info->si_uid = map_cred_ns(__task_cred(current->parent),
+				current_user_ns());
+		rcu_read_unlock();
 	}
 
 	/* If the (new) signal is now blocked, requeue it.  */
@@ -2318,6 +2355,27 @@ relock:
 	return signr;
 }
 
+/**
+ * block_sigmask - add @ka's signal mask to current->blocked
+ * @ka: action for @signr
+ * @signr: signal that has been successfully delivered
+ *
+ * This function should be called when a signal has succesfully been
+ * delivered. It adds the mask of signals for @ka to current->blocked
+ * so that they are blocked during the execution of the signal
+ * handler. In addition, @signr will be blocked unless %SA_NODEFER is
+ * set in @ka->sa.sa_flags.
+ */
+void block_sigmask(struct k_sigaction *ka, int signr)
+{
+	sigset_t blocked;
+
+	sigorsets(&blocked, &current->blocked, &ka->sa.sa_mask);
+	if (!(ka->sa.sa_flags & SA_NODEFER))
+		sigaddset(&blocked, signr);
+	set_current_blocked(&blocked);
+}
+
 /*
  * It could be that complete_signal() picked us to notify about the
  * group-wide signal. Other threads should be notified now to take
@@ -2355,8 +2413,15 @@ void exit_signals(struct task_struct *tsk)
 	int group_stop = 0;
 	sigset_t unblocked;
 
+	/*
+	 * @tsk is about to have PF_EXITING set - lock out users which
+	 * expect stable threadgroup.
+	 */
+	threadgroup_change_begin(tsk);
+
 	if (thread_group_empty(tsk) || signal_group_exit(tsk->signal)) {
 		tsk->flags |= PF_EXITING;
+		threadgroup_change_end(tsk);
 		return;
 	}
 
@@ -2366,6 +2431,9 @@ void exit_signals(struct task_struct *tsk)
 	 * see wants_signal(), do_signal_stop().
 	 */
 	tsk->flags |= PF_EXITING;
+
+	threadgroup_change_end(tsk);
+
 	if (!signal_pending(tsk))
 		goto out;
 
diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 42fa9ad0a810..bec7b5b53e03 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -242,10 +242,10 @@ struct workqueue_struct {
 
 	int			nr_drainers;	/* W: drain in progress */
 	int			saved_max_active; /* W: saved cwq max_active */
-	const char		*name;		/* I: workqueue name */
 #ifdef CONFIG_LOCKDEP
 	struct lockdep_map	lockdep_map;
 #endif
+	char			name[];		/* I: workqueue name */
 };
 
 struct workqueue_struct *system_wq __read_mostly;
@@ -2954,14 +2954,29 @@ static int wq_clamp_max_active(int max_active, unsigned int flags,
 	return clamp_val(max_active, 1, lim);
 }
 
-struct workqueue_struct *__alloc_workqueue_key(const char *name,
+struct workqueue_struct *__alloc_workqueue_key(const char *fmt,
 					       unsigned int flags,
 					       int max_active,
 					       struct lock_class_key *key,
-					       const char *lock_name)
+					       const char *lock_name, ...)
 {
+	va_list args, args1;
 	struct workqueue_struct *wq;
 	unsigned int cpu;
+	size_t namelen;
+
+	/* determine namelen, allocate wq and format name */
+	va_start(args, lock_name);
+	va_copy(args1, args);
+	namelen = vsnprintf(NULL, 0, fmt, args) + 1;
+
+	wq = kzalloc(sizeof(*wq) + namelen, GFP_KERNEL);
+	if (!wq)
+		goto err;
+
+	vsnprintf(wq->name, namelen, fmt, args1);
+	va_end(args);
+	va_end(args1);
 
 	/*
 	 * Workqueues which may be used during memory reclaim should
@@ -2978,12 +2993,9 @@ struct workqueue_struct *__alloc_workqueue_key(const char *name,
 		flags |= WQ_HIGHPRI;
 
 	max_active = max_active ?: WQ_DFL_ACTIVE;
-	max_active = wq_clamp_max_active(max_active, flags, name);
-
-	wq = kzalloc(sizeof(*wq), GFP_KERNEL);
-	if (!wq)
-		goto err;
+	max_active = wq_clamp_max_active(max_active, flags, wq->name);
 
+	/* init wq */
 	wq->flags = flags;
 	wq->saved_max_active = max_active;
 	mutex_init(&wq->flush_mutex);
@@ -2991,7 +3003,6 @@ struct workqueue_struct *__alloc_workqueue_key(const char *name,
 	INIT_LIST_HEAD(&wq->flusher_queue);
 	INIT_LIST_HEAD(&wq->flusher_overflow);
 
-	wq->name = name;
 	lockdep_init_map(&wq->lockdep_map, lock_name, key, 0);
 	INIT_LIST_HEAD(&wq->list);
 
@@ -3020,7 +3031,8 @@ struct workqueue_struct *__alloc_workqueue_key(const char *name,
 		if (!rescuer)
 			goto err;
 
-		rescuer->task = kthread_create(rescuer_thread, wq, "%s", name);
+		rescuer->task = kthread_create(rescuer_thread, wq, "%s",
+					       wq->name);
 		if (IS_ERR(rescuer->task))
 			goto err;
 
diff --git a/lib/Kconfig b/lib/Kconfig
index f34be6417d71..7f6b8bca8c25 100644
--- a/lib/Kconfig
+++ b/lib/Kconfig
@@ -19,6 +19,13 @@ config RATIONAL
 config GENERIC_FIND_FIRST_BIT
 	bool
 
+config GENERIC_PCI_IOMAP
+	bool
+
+config GENERIC_IOMAP
+	bool
+	select GENERIC_PCI_IOMAP
+
 config CRC_CCITT
 	tristate "CRC-CCITT functions"
 	help
diff --git a/lib/Makefile b/lib/Makefile
index c0ffaaff6534..884ed376164d 100644
--- a/lib/Makefile
+++ b/lib/Makefile
@@ -33,6 +33,7 @@ endif
 
 lib-$(CONFIG_HOTPLUG) += kobject_uevent.o
 obj-$(CONFIG_GENERIC_IOMAP) += iomap.o
+obj-$(CONFIG_GENERIC_PCI_IOMAP) += pci_iomap.o
 obj-$(CONFIG_HAS_IOMEM) += iomap_copy.o devres.o
 obj-$(CONFIG_CHECK_SIGNATURE) += check_signature.o
 obj-$(CONFIG_DEBUG_LOCKING_API_SELFTESTS) += locking-selftest.o
diff --git a/lib/btree.c b/lib/btree.c
index 2a34392bcecc..e5ec1e9c1aa5 100644
--- a/lib/btree.c
+++ b/lib/btree.c
@@ -357,6 +357,7 @@ miss:
 	}
 	return NULL;
 }
+EXPORT_SYMBOL_GPL(btree_get_prev);
 
 static int getpos(struct btree_geo *geo, unsigned long *node,
 		unsigned long *key)
diff --git a/lib/crc32.c b/lib/crc32.c
index a6e633a48cea..4b35d2b4437c 100644
--- a/lib/crc32.c
+++ b/lib/crc32.c
@@ -51,20 +51,21 @@ static inline u32
 crc32_body(u32 crc, unsigned char const *buf, size_t len, const u32 (*tab)[256])
 {
 # ifdef __LITTLE_ENDIAN
-#  define DO_CRC(x) crc = tab[0][(crc ^ (x)) & 255] ^ (crc >> 8)
-#  define DO_CRC4 crc = tab[3][(crc) & 255] ^ \
-		tab[2][(crc >> 8) & 255] ^ \
-		tab[1][(crc >> 16) & 255] ^ \
-		tab[0][(crc >> 24) & 255]
+#  define DO_CRC(x) crc = t0[(crc ^ (x)) & 255] ^ (crc >> 8)
+#  define DO_CRC4 crc = t3[(crc) & 255] ^ \
+		t2[(crc >> 8) & 255] ^ \
+		t1[(crc >> 16) & 255] ^ \
+		t0[(crc >> 24) & 255]
 # else
-#  define DO_CRC(x) crc = tab[0][((crc >> 24) ^ (x)) & 255] ^ (crc << 8)
-#  define DO_CRC4 crc = tab[0][(crc) & 255] ^ \
-		tab[1][(crc >> 8) & 255] ^ \
-		tab[2][(crc >> 16) & 255] ^ \
-		tab[3][(crc >> 24) & 255]
+#  define DO_CRC(x) crc = t0[((crc >> 24) ^ (x)) & 255] ^ (crc << 8)
+#  define DO_CRC4 crc = t0[(crc) & 255] ^ \
+		t1[(crc >> 8) & 255] ^  \
+		t2[(crc >> 16) & 255] ^	\
+		t3[(crc >> 24) & 255]
 # endif
 	const u32 *b;
 	size_t    rem_len;
+	const u32 *t0=tab[0], *t1=tab[1], *t2=tab[2], *t3=tab[3];
 
 	/* Align it */
 	if (unlikely((long)buf & 3 && len)) {
diff --git a/lib/iomap.c b/lib/iomap.c
index 5dbcb4b2d864..ada922a808e6 100644
--- a/lib/iomap.c
+++ b/lib/iomap.c
@@ -242,45 +242,11 @@ EXPORT_SYMBOL(ioport_unmap);
 #endif /* CONFIG_HAS_IOPORT */
 
 #ifdef CONFIG_PCI
-/**
- * pci_iomap - create a virtual mapping cookie for a PCI BAR
- * @dev: PCI device that owns the BAR
- * @bar: BAR number
- * @maxlen: length of the memory to map
- *
- * Using this function you will get a __iomem address to your device BAR.
- * You can access it using ioread*() and iowrite*(). These functions hide
- * the details if this is a MMIO or PIO address space and will just do what
- * you expect from them in the correct way.
- *
- * @maxlen specifies the maximum length to map. If you want to get access to
- * the complete BAR without checking for its length first, pass %0 here.
- * */
-void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
-{
-	resource_size_t start = pci_resource_start(dev, bar);
-	resource_size_t len = pci_resource_len(dev, bar);
-	unsigned long flags = pci_resource_flags(dev, bar);
-
-	if (!len || !start)
-		return NULL;
-	if (maxlen && len > maxlen)
-		len = maxlen;
-	if (flags & IORESOURCE_IO)
-		return ioport_map(start, len);
-	if (flags & IORESOURCE_MEM) {
-		if (flags & IORESOURCE_CACHEABLE)
-			return ioremap(start, len);
-		return ioremap_nocache(start, len);
-	}
-	/* What? */
-	return NULL;
-}
-
+/* Hide the details if this is a MMIO or PIO address space and just do what
+ * you expect in the correct way. */
 void pci_iounmap(struct pci_dev *dev, void __iomem * addr)
 {
 	IO_COND(addr, /* nothing */, iounmap(addr));
 }
-EXPORT_SYMBOL(pci_iomap);
 EXPORT_SYMBOL(pci_iounmap);
 #endif /* CONFIG_PCI */
diff --git a/lib/pci_iomap.c b/lib/pci_iomap.c
new file mode 100644
index 000000000000..4b0fdc22e688
--- /dev/null
+++ b/lib/pci_iomap.c
@@ -0,0 +1,48 @@
+/*
+ * Implement the default iomap interfaces
+ *
+ * (C) Copyright 2004 Linus Torvalds
+ */
+#include <linux/pci.h>
+#include <linux/io.h>
+
+#include <linux/export.h>
+
+#ifdef CONFIG_PCI
+/**
+ * pci_iomap - create a virtual mapping cookie for a PCI BAR
+ * @dev: PCI device that owns the BAR
+ * @bar: BAR number
+ * @maxlen: length of the memory to map
+ *
+ * Using this function you will get a __iomem address to your device BAR.
+ * You can access it using ioread*() and iowrite*(). These functions hide
+ * the details if this is a MMIO or PIO address space and will just do what
+ * you expect from them in the correct way.
+ *
+ * @maxlen specifies the maximum length to map. If you want to get access to
+ * the complete BAR without checking for its length first, pass %0 here.
+ * */
+void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long maxlen)
+{
+	resource_size_t start = pci_resource_start(dev, bar);
+	resource_size_t len = pci_resource_len(dev, bar);
+	unsigned long flags = pci_resource_flags(dev, bar);
+
+	if (!len || !start)
+		return NULL;
+	if (maxlen && len > maxlen)
+		len = maxlen;
+	if (flags & IORESOURCE_IO)
+		return ioport_map(start, len);
+	if (flags & IORESOURCE_MEM) {
+		if (flags & IORESOURCE_CACHEABLE)
+			return ioremap(start, len);
+		return ioremap_nocache(start, len);
+	}
+	/* What? */
+	return NULL;
+}
+
+EXPORT_SYMBOL(pci_iomap);
+#endif /* CONFIG_PCI */
diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index 99093b396145..058935ef3975 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -110,11 +110,11 @@ setup_io_tlb_npages(char *str)
 __setup("swiotlb=", setup_io_tlb_npages);
 /* make io_tlb_overflow tunable too? */
 
-unsigned long swioltb_nr_tbl(void)
+unsigned long swiotlb_nr_tbl(void)
 {
 	return io_tlb_nslabs;
 }
-
+EXPORT_SYMBOL_GPL(swiotlb_nr_tbl);
 /* Note that this doesn't work with highmem page */
 static dma_addr_t swiotlb_virt_to_bus(struct device *hwdev,
 				      volatile void *address)
@@ -321,6 +321,7 @@ void __init swiotlb_free(void)
 		free_bootmem_late(__pa(io_tlb_start),
 				  PAGE_ALIGN(io_tlb_nslabs << IO_TLB_SHIFT));
 	}
+	io_tlb_nslabs = 0;
 }
 
 static int is_swiotlb_buffer(phys_addr_t paddr)
diff --git a/mm/Kconfig.debug b/mm/Kconfig.debug
index 8b1a477162dc..4b2443254de2 100644
--- a/mm/Kconfig.debug
+++ b/mm/Kconfig.debug
@@ -4,6 +4,7 @@ config DEBUG_PAGEALLOC
 	depends on !HIBERNATION || ARCH_SUPPORTS_DEBUG_PAGEALLOC && !PPC && !SPARC
 	depends on !KMEMCHECK
 	select PAGE_POISONING if !ARCH_SUPPORTS_DEBUG_PAGEALLOC
+	select PAGE_GUARD if ARCH_SUPPORTS_DEBUG_PAGEALLOC
 	---help---
 	  Unmap pages from the kernel linear mapping after free_pages().
 	  This results in a large slowdown, but helps to find certain types
@@ -22,3 +23,7 @@ config WANT_PAGE_DEBUG_FLAGS
 config PAGE_POISONING
 	bool
 	select WANT_PAGE_DEBUG_FLAGS
+
+config PAGE_GUARD
+	bool
+	select WANT_PAGE_DEBUG_FLAGS
diff --git a/mm/bootmem.c b/mm/bootmem.c
index 1a77012ecdb3..668e94df8cf2 100644
--- a/mm/bootmem.c
+++ b/mm/bootmem.c
@@ -56,7 +56,7 @@ early_param("bootmem_debug", bootmem_debug_setup);
 
 static unsigned long __init bootmap_bytes(unsigned long pages)
 {
-	unsigned long bytes = (pages + 7) / 8;
+	unsigned long bytes = DIV_ROUND_UP(pages, 8);
 
 	return ALIGN(bytes, sizeof(long));
 }
@@ -171,7 +171,6 @@ void __init free_bootmem_late(unsigned long addr, unsigned long size)
 
 static unsigned long __init free_all_bootmem_core(bootmem_data_t *bdata)
 {
-	int aligned;
 	struct page *page;
 	unsigned long start, end, pages, count = 0;
 
@@ -181,14 +180,8 @@ static unsigned long __init free_all_bootmem_core(bootmem_data_t *bdata)
 	start = bdata->node_min_pfn;
 	end = bdata->node_low_pfn;
 
-	/*
-	 * If the start is aligned to the machines wordsize, we might
-	 * be able to free pages in bulks of that order.
-	 */
-	aligned = !(start & (BITS_PER_LONG - 1));
-
-	bdebug("nid=%td start=%lx end=%lx aligned=%d\n",
-		bdata - bootmem_node_data, start, end, aligned);
+	bdebug("nid=%td start=%lx end=%lx\n",
+		bdata - bootmem_node_data, start, end);
 
 	while (start < end) {
 		unsigned long *map, idx, vec;
@@ -196,12 +189,17 @@ static unsigned long __init free_all_bootmem_core(bootmem_data_t *bdata)
 		map = bdata->node_bootmem_map;
 		idx = start - bdata->node_min_pfn;
 		vec = ~map[idx / BITS_PER_LONG];
-
-		if (aligned && vec == ~0UL && start + BITS_PER_LONG < end) {
+		/*
+		 * If we have a properly aligned and fully unreserved
+		 * BITS_PER_LONG block of pages in front of us, free
+		 * it in one go.
+		 */
+		if (IS_ALIGNED(start, BITS_PER_LONG) && vec == ~0UL) {
 			int order = ilog2(BITS_PER_LONG);
 
 			__free_pages_bootmem(pfn_to_page(start), order);
 			count += BITS_PER_LONG;
+			start += BITS_PER_LONG;
 		} else {
 			unsigned long off = 0;
 
@@ -214,8 +212,8 @@ static unsigned long __init free_all_bootmem_core(bootmem_data_t *bdata)
 				vec >>= 1;
 				off++;
 			}
+			start = ALIGN(start + 1, BITS_PER_LONG);
 		}
-		start += BITS_PER_LONG;
 	}
 
 	page = virt_to_page(bdata->node_bootmem_map);
diff --git a/mm/compaction.c b/mm/compaction.c
index 1253d7ac332b..e6670c34eb49 100644
--- a/mm/compaction.c
+++ b/mm/compaction.c
@@ -365,8 +365,10 @@ static isolate_migrate_t isolate_migratepages(struct zone *zone,
 		nr_isolated++;
 
 		/* Avoid isolating too much */
-		if (cc->nr_migratepages == COMPACT_CLUSTER_MAX)
+		if (cc->nr_migratepages == COMPACT_CLUSTER_MAX) {
+			++low_pfn;
 			break;
+		}
 	}
 
 	acct_isolated(zone, cc);
diff --git a/mm/fadvise.c b/mm/fadvise.c
index 8d723c9e8b75..469491e0af79 100644
--- a/mm/fadvise.c
+++ b/mm/fadvise.c
@@ -117,7 +117,8 @@ SYSCALL_DEFINE(fadvise64_64)(int fd, loff_t offset, loff_t len, int advice)
 		break;
 	case POSIX_FADV_DONTNEED:
 		if (!bdi_write_congested(mapping->backing_dev_info))
-			filemap_flush(mapping);
+			__filemap_fdatawrite_range(mapping, offset, endbyte,
+						   WB_SYNC_NONE);
 
 		/* First and last FULL page! */
 		start_index = (offset+(PAGE_CACHE_SIZE-1)) >> PAGE_CACHE_SHIFT;
diff --git a/mm/filemap.c b/mm/filemap.c
index a0701e6eec10..c4ee2e918bea 100644
--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -2351,8 +2351,11 @@ struct page *grab_cache_page_write_begin(struct address_space *mapping,
 					pgoff_t index, unsigned flags)
 {
 	int status;
+	gfp_t gfp_mask;
 	struct page *page;
 	gfp_t gfp_notmask = 0;
+
+	gfp_mask = mapping_gfp_mask(mapping) | __GFP_WRITE;
 	if (flags & AOP_FLAG_NOFS)
 		gfp_notmask = __GFP_FS;
 repeat:
@@ -2360,7 +2363,7 @@ repeat:
 	if (page)
 		goto found;
 
-	page = __page_cache_alloc(mapping_gfp_mask(mapping) & ~gfp_notmask);
+	page = __page_cache_alloc(gfp_mask & ~gfp_notmask);
 	if (!page)
 		return NULL;
 	status = add_to_page_cache_lru(page, mapping, index,
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 7acd12503f73..ea8c3a4cd2ae 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -800,7 +800,7 @@ static struct page *alloc_buddy_huge_page(struct hstate *h, int nid)
 
 	if (page && arch_prepare_hugepage(page)) {
 		__free_pages(page, huge_page_order(h));
-		return NULL;
+		page = NULL;
 	}
 
 	spin_lock(&hugetlb_lock);
@@ -2315,8 +2315,7 @@ static int unmap_ref_private(struct mm_struct *mm, struct vm_area_struct *vma,
 	 * from page cache lookup which is in HPAGE_SIZE units.
 	 */
 	address = address & huge_page_mask(h);
-	pgoff = ((address - vma->vm_start) >> PAGE_SHIFT)
-		+ (vma->vm_pgoff >> PAGE_SHIFT);
+	pgoff = vma_hugecache_offset(h, vma, address);
 	mapping = (struct address_space *)page_private(page);
 
 	/*
@@ -2349,6 +2348,9 @@ static int unmap_ref_private(struct mm_struct *mm, struct vm_area_struct *vma,
 
 /*
  * Hugetlb_cow() should be called with page lock of the original hugepage held.
+ * Called with hugetlb_instantiation_mutex held and pte_page locked so we
+ * cannot race with other handlers or page migration.
+ * Keep the pte_same checks anyway to make transition from the mutex easier.
  */
 static int hugetlb_cow(struct mm_struct *mm, struct vm_area_struct *vma,
 			unsigned long address, pte_t *ptep, pte_t pte,
@@ -2408,7 +2410,14 @@ retry_avoidcopy:
 				BUG_ON(page_count(old_page) != 1);
 				BUG_ON(huge_pte_none(pte));
 				spin_lock(&mm->page_table_lock);
-				goto retry_avoidcopy;
+				ptep = huge_pte_offset(mm, address & huge_page_mask(h));
+				if (likely(pte_same(huge_ptep_get(ptep), pte)))
+					goto retry_avoidcopy;
+				/*
+				 * race occurs while re-acquiring page_table_lock, and
+				 * our job is done.
+				 */
+				return 0;
 			}
 			WARN_ON_ONCE(1);
 		}
@@ -2630,6 +2639,8 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
 	static DEFINE_MUTEX(hugetlb_instantiation_mutex);
 	struct hstate *h = hstate_vma(vma);
 
+	address &= huge_page_mask(h);
+
 	ptep = huge_pte_offset(mm, address);
 	if (ptep) {
 		entry = huge_ptep_get(ptep);
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index 94da8ee9e2c2..d87aa3510c5e 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -381,16 +381,25 @@ static void mem_cgroup_put(struct mem_cgroup *memcg);
 static bool mem_cgroup_is_root(struct mem_cgroup *memcg);
 void sock_update_memcg(struct sock *sk)
 {
-	/* A socket spends its whole life in the same cgroup */
-	if (sk->sk_cgrp) {
-		WARN_ON(1);
-		return;
-	}
 	if (static_branch(&memcg_socket_limit_enabled)) {
 		struct mem_cgroup *memcg;
 
 		BUG_ON(!sk->sk_prot->proto_cgroup);
 
+		/* Socket cloning can throw us here with sk_cgrp already
+		 * filled. It won't however, necessarily happen from
+		 * process context. So the test for root memcg given
+		 * the current task's memcg won't help us in this case.
+		 *
+		 * Respecting the original socket's memcg is a better
+		 * decision in this case.
+		 */
+		if (sk->sk_cgrp) {
+			BUG_ON(mem_cgroup_is_root(sk->sk_cgrp->memcg));
+			mem_cgroup_get(sk->sk_cgrp->memcg);
+			return;
+		}
+
 		rcu_read_lock();
 		memcg = mem_cgroup_from_task(current);
 		if (!mem_cgroup_is_root(memcg)) {
@@ -5391,8 +5400,9 @@ static void mem_cgroup_clear_mc(void)
 
 static int mem_cgroup_can_attach(struct cgroup_subsys *ss,
 				struct cgroup *cgroup,
-				struct task_struct *p)
+				struct cgroup_taskset *tset)
 {
+	struct task_struct *p = cgroup_taskset_first(tset);
 	int ret = 0;
 	struct mem_cgroup *memcg = mem_cgroup_from_cont(cgroup);
 
@@ -5430,7 +5440,7 @@ static int mem_cgroup_can_attach(struct cgroup_subsys *ss,
 
 static void mem_cgroup_cancel_attach(struct cgroup_subsys *ss,
 				struct cgroup *cgroup,
-				struct task_struct *p)
+				struct cgroup_taskset *tset)
 {
 	mem_cgroup_clear_mc();
 }
@@ -5547,9 +5557,9 @@ retry:
 
 static void mem_cgroup_move_task(struct cgroup_subsys *ss,
 				struct cgroup *cont,
-				struct cgroup *old_cont,
-				struct task_struct *p)
+				struct cgroup_taskset *tset)
 {
+	struct task_struct *p = cgroup_taskset_first(tset);
 	struct mm_struct *mm = get_task_mm(p);
 
 	if (mm) {
@@ -5564,19 +5574,18 @@ static void mem_cgroup_move_task(struct cgroup_subsys *ss,
 #else	/* !CONFIG_MMU */
 static int mem_cgroup_can_attach(struct cgroup_subsys *ss,
 				struct cgroup *cgroup,
-				struct task_struct *p)
+				struct cgroup_taskset *tset)
 {
 	return 0;
 }
 static void mem_cgroup_cancel_attach(struct cgroup_subsys *ss,
 				struct cgroup *cgroup,
-				struct task_struct *p)
+				struct cgroup_taskset *tset)
 {
 }
 static void mem_cgroup_move_task(struct cgroup_subsys *ss,
 				struct cgroup *cont,
-				struct cgroup *old_cont,
-				struct task_struct *p)
+				struct cgroup_taskset *tset)
 {
 }
 #endif
diff --git a/mm/mempolicy.c b/mm/mempolicy.c
index c3fdbcb17658..e3d58f088466 100644
--- a/mm/mempolicy.c
+++ b/mm/mempolicy.c
@@ -1983,28 +1983,28 @@ struct mempolicy *__mpol_cond_copy(struct mempolicy *tompol,
 }
 
 /* Slow path of a mempolicy comparison */
-int __mpol_equal(struct mempolicy *a, struct mempolicy *b)
+bool __mpol_equal(struct mempolicy *a, struct mempolicy *b)
 {
 	if (!a || !b)
-		return 0;
+		return false;
 	if (a->mode != b->mode)
-		return 0;
+		return false;
 	if (a->flags != b->flags)
-		return 0;
+		return false;
 	if (mpol_store_user_nodemask(a))
 		if (!nodes_equal(a->w.user_nodemask, b->w.user_nodemask))
-			return 0;
+			return false;
 
 	switch (a->mode) {
 	case MPOL_BIND:
 		/* Fall through */
 	case MPOL_INTERLEAVE:
-		return nodes_equal(a->v.nodes, b->v.nodes);
+		return !!nodes_equal(a->v.nodes, b->v.nodes);
 	case MPOL_PREFERRED:
 		return a->v.preferred_node == b->v.preferred_node;
 	default:
 		BUG();
-		return 0;
+		return false;
 	}
 }
 
diff --git a/mm/mempool.c b/mm/mempool.c
index e73641b79bb5..d9049811f352 100644
--- a/mm/mempool.c
+++ b/mm/mempool.c
@@ -27,7 +27,15 @@ static void *remove_element(mempool_t *pool)
 	return pool->elements[--pool->curr_nr];
 }
 
-static void free_pool(mempool_t *pool)
+/**
+ * mempool_destroy - deallocate a memory pool
+ * @pool:      pointer to the memory pool which was allocated via
+ *             mempool_create().
+ *
+ * Free all reserved elements in @pool and @pool itself.  This function
+ * only sleeps if the free_fn() function sleeps.
+ */
+void mempool_destroy(mempool_t *pool)
 {
 	while (pool->curr_nr) {
 		void *element = remove_element(pool);
@@ -36,6 +44,7 @@ static void free_pool(mempool_t *pool)
 	kfree(pool->elements);
 	kfree(pool);
 }
+EXPORT_SYMBOL(mempool_destroy);
 
 /**
  * mempool_create - create a memory pool
@@ -86,7 +95,7 @@ mempool_t *mempool_create_node(int min_nr, mempool_alloc_t *alloc_fn,
 
 		element = pool->alloc(GFP_KERNEL, pool->pool_data);
 		if (unlikely(!element)) {
-			free_pool(pool);
+			mempool_destroy(pool);
 			return NULL;
 		}
 		add_element(pool, element);
@@ -172,23 +181,6 @@ out:
 EXPORT_SYMBOL(mempool_resize);
 
 /**
- * mempool_destroy - deallocate a memory pool
- * @pool:      pointer to the memory pool which was allocated via
- *             mempool_create().
- *
- * this function only sleeps if the free_fn() function sleeps. The caller
- * has to guarantee that all elements have been returned to the pool (ie:
- * freed) prior to calling mempool_destroy().
- */
-void mempool_destroy(mempool_t *pool)
-{
-	/* Check for outstanding elements */
-	BUG_ON(pool->curr_nr != pool->min_nr);
-	free_pool(pool);
-}
-EXPORT_SYMBOL(mempool_destroy);
-
-/**
  * mempool_alloc - allocate an element from a specific memory pool
  * @pool:      pointer to the memory pool which was allocated via
  *             mempool_create().
@@ -224,28 +216,40 @@ repeat_alloc:
 	if (likely(pool->curr_nr)) {
 		element = remove_element(pool);
 		spin_unlock_irqrestore(&pool->lock, flags);
+		/* paired with rmb in mempool_free(), read comment there */
+		smp_wmb();
 		return element;
 	}
-	spin_unlock_irqrestore(&pool->lock, flags);
 
-	/* We must not sleep in the GFP_ATOMIC case */
-	if (!(gfp_mask & __GFP_WAIT))
+	/*
+	 * We use gfp mask w/o __GFP_WAIT or IO for the first round.  If
+	 * alloc failed with that and @pool was empty, retry immediately.
+	 */
+	if (gfp_temp != gfp_mask) {
+		spin_unlock_irqrestore(&pool->lock, flags);
+		gfp_temp = gfp_mask;
+		goto repeat_alloc;
+	}
+
+	/* We must not sleep if !__GFP_WAIT */
+	if (!(gfp_mask & __GFP_WAIT)) {
+		spin_unlock_irqrestore(&pool->lock, flags);
 		return NULL;
+	}
 
-	/* Now start performing page reclaim */
-	gfp_temp = gfp_mask;
+	/* Let's wait for someone else to return an element to @pool */
 	init_wait(&wait);
 	prepare_to_wait(&pool->wait, &wait, TASK_UNINTERRUPTIBLE);
-	smp_mb();
-	if (!pool->curr_nr) {
-		/*
-		 * FIXME: this should be io_schedule().  The timeout is there
-		 * as a workaround for some DM problems in 2.6.18.
-		 */
-		io_schedule_timeout(5*HZ);
-	}
-	finish_wait(&pool->wait, &wait);
 
+	spin_unlock_irqrestore(&pool->lock, flags);
+
+	/*
+	 * FIXME: this should be io_schedule().  The timeout is there as a
+	 * workaround for some DM problems in 2.6.18.
+	 */
+	io_schedule_timeout(5*HZ);
+
+	finish_wait(&pool->wait, &wait);
 	goto repeat_alloc;
 }
 EXPORT_SYMBOL(mempool_alloc);
@@ -265,7 +269,39 @@ void mempool_free(void *element, mempool_t *pool)
 	if (unlikely(element == NULL))
 		return;
 
-	smp_mb();
+	/*
+	 * Paired with the wmb in mempool_alloc().  The preceding read is
+	 * for @element and the following @pool->curr_nr.  This ensures
+	 * that the visible value of @pool->curr_nr is from after the
+	 * allocation of @element.  This is necessary for fringe cases
+	 * where @element was passed to this task without going through
+	 * barriers.
+	 *
+	 * For example, assume @p is %NULL at the beginning and one task
+	 * performs "p = mempool_alloc(...);" while another task is doing
+	 * "while (!p) cpu_relax(); mempool_free(p, ...);".  This function
+	 * may end up using curr_nr value which is from before allocation
+	 * of @p without the following rmb.
+	 */
+	smp_rmb();
+
+	/*
+	 * For correctness, we need a test which is guaranteed to trigger
+	 * if curr_nr + #allocated == min_nr.  Testing curr_nr < min_nr
+	 * without locking achieves that and refilling as soon as possible
+	 * is desirable.
+	 *
+	 * Because curr_nr visible here is always a value after the
+	 * allocation of @element, any task which decremented curr_nr below
+	 * min_nr is guaranteed to see curr_nr < min_nr unless curr_nr gets
+	 * incremented to min_nr afterwards.  If curr_nr gets incremented
+	 * to min_nr after the allocation of @element, the elements
+	 * allocated after that are subject to the same guarantee.
+	 *
+	 * Waiters happen iff curr_nr is 0 and the above guarantee also
+	 * ensures that there will be frees which return elements to the
+	 * pool waking up the waiters.
+	 */
 	if (pool->curr_nr < pool->min_nr) {
 		spin_lock_irqsave(&pool->lock, flags);
 		if (pool->curr_nr < pool->min_nr) {
diff --git a/mm/migrate.c b/mm/migrate.c
index 177aca424a06..89ea0854332e 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -39,8 +39,6 @@
 
 #include "internal.h"
 
-#define lru_to_page(_head) (list_entry((_head)->prev, struct page, lru))
-
 /*
  * migrate_prep() needs to be called before we start compiling a list of pages
  * to be migrated using isolate_lru_page(). If scheduling work on other CPUs is
@@ -181,8 +179,6 @@ static void remove_migration_ptes(struct page *old, struct page *new)
  * Something used the pte of a page under migration. We need to
  * get to the page and wait until migration is finished.
  * When we return from this function the fault will be retried.
- *
- * This function is called from do_swap_page().
  */
 void migration_entry_wait(struct mm_struct *mm, pmd_t *pmd,
 				unsigned long address)
@@ -269,12 +265,12 @@ static int migrate_page_move_mapping(struct address_space *mapping,
 
 	radix_tree_replace_slot(pslot, newpage);
 
-	page_unfreeze_refs(page, expected_count);
 	/*
-	 * Drop cache reference from old page.
+	 * Drop cache reference from old page by unfreezing
+	 * to one less reference.
 	 * We know this isn't the last reference.
 	 */
-	__put_page(page);
+	page_unfreeze_refs(page, expected_count - 1);
 
 	/*
 	 * If moved to a different zone then also account
@@ -334,9 +330,7 @@ int migrate_huge_page_move_mapping(struct address_space *mapping,
 
 	radix_tree_replace_slot(pslot, newpage);
 
-	page_unfreeze_refs(page, expected_count);
-
-	__put_page(page);
+	page_unfreeze_refs(page, expected_count - 1);
 
 	spin_unlock_irq(&mapping->tree_lock);
 	return 0;
diff --git a/mm/mmap.c b/mm/mmap.c
index eae90af60ea6..3f758c7f4c81 100644
--- a/mm/mmap.c
+++ b/mm/mmap.c
@@ -1603,39 +1603,19 @@ struct vm_area_struct *find_vma(struct mm_struct *mm, unsigned long addr)
 
 EXPORT_SYMBOL(find_vma);
 
-/* Same as find_vma, but also return a pointer to the previous VMA in *pprev. */
+/*
+ * Same as find_vma, but also return a pointer to the previous VMA in *pprev.
+ * Note: pprev is set to NULL when return value is NULL.
+ */
 struct vm_area_struct *
 find_vma_prev(struct mm_struct *mm, unsigned long addr,
 			struct vm_area_struct **pprev)
 {
-	struct vm_area_struct *vma = NULL, *prev = NULL;
-	struct rb_node *rb_node;
-	if (!mm)
-		goto out;
-
-	/* Guard against addr being lower than the first VMA */
-	vma = mm->mmap;
-
-	/* Go through the RB tree quickly. */
-	rb_node = mm->mm_rb.rb_node;
-
-	while (rb_node) {
-		struct vm_area_struct *vma_tmp;
-		vma_tmp = rb_entry(rb_node, struct vm_area_struct, vm_rb);
-
-		if (addr < vma_tmp->vm_end) {
-			rb_node = rb_node->rb_left;
-		} else {
-			prev = vma_tmp;
-			if (!prev->vm_next || (addr < prev->vm_next->vm_end))
-				break;
-			rb_node = rb_node->rb_right;
-		}
-	}
+	struct vm_area_struct *vma;
 
-out:
-	*pprev = prev;
-	return prev ? prev->vm_next : vma;
+	vma = find_vma(mm, addr);
+	*pprev = vma ? vma->vm_prev : NULL;
+	return vma;
 }
 
 /*
@@ -2322,13 +2302,16 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap,
 	struct vm_area_struct *new_vma, *prev;
 	struct rb_node **rb_link, *rb_parent;
 	struct mempolicy *pol;
+	bool faulted_in_anon_vma = true;
 
 	/*
 	 * If anonymous vma has not yet been faulted, update new pgoff
 	 * to match new location, to increase its chance of merging.
 	 */
-	if (!vma->vm_file && !vma->anon_vma)
+	if (unlikely(!vma->vm_file && !vma->anon_vma)) {
 		pgoff = addr >> PAGE_SHIFT;
+		faulted_in_anon_vma = false;
+	}
 
 	find_vma_prepare(mm, addr, &prev, &rb_link, &rb_parent);
 	new_vma = vma_merge(mm, prev, addr, addr + len, vma->vm_flags,
@@ -2337,9 +2320,24 @@ struct vm_area_struct *copy_vma(struct vm_area_struct **vmap,
 		/*
 		 * Source vma may have been merged into new_vma
 		 */
-		if (vma_start >= new_vma->vm_start &&
-		    vma_start < new_vma->vm_end)
+		if (unlikely(vma_start >= new_vma->vm_start &&
+			     vma_start < new_vma->vm_end)) {
+			/*
+			 * The only way we can get a vma_merge with
+			 * self during an mremap is if the vma hasn't
+			 * been faulted in yet and we were allowed to
+			 * reset the dst vma->vm_pgoff to the
+			 * destination address of the mremap to allow
+			 * the merge to happen. mremap must change the
+			 * vm_pgoff linearity between src and dst vmas
+			 * (in turn preventing a vma_merge) to be
+			 * safe. It is only safe to keep the vm_pgoff
+			 * linear if there are no pages mapped yet.
+			 */
+			VM_BUG_ON(faulted_in_anon_vma);
 			*vmap = new_vma;
+		} else
+			anon_vma_moveto_tail(new_vma);
 	} else {
 		new_vma = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
 		if (new_vma) {
diff --git a/mm/mremap.c b/mm/mremap.c
index d6959cb4df58..87bb8393e7d2 100644
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -221,6 +221,15 @@ static unsigned long move_vma(struct vm_area_struct *vma,
 	moved_len = move_page_tables(vma, old_addr, new_vma, new_addr, old_len);
 	if (moved_len < old_len) {
 		/*
+		 * Before moving the page tables from the new vma to
+		 * the old vma, we need to be sure the old vma is
+		 * queued after new vma in the same_anon_vma list to
+		 * prevent SMP races with rmap_walk (that could lead
+		 * rmap_walk to miss some page table).
+		 */
+		anon_vma_moveto_tail(vma);
+
+		/*
 		 * On error, move entries back from new area to old,
 		 * which will succeed since page tables still there,
 		 * and then proceed to unmap new area instead of old.
diff --git a/mm/oom_kill.c b/mm/oom_kill.c
index eeb27e27dce3..7c122faa05c5 100644
--- a/mm/oom_kill.c
+++ b/mm/oom_kill.c
@@ -33,6 +33,10 @@
 #include <linux/security.h>
 #include <linux/ptrace.h>
 #include <linux/freezer.h>
+#include <linux/ftrace.h>
+
+#define CREATE_TRACE_POINTS
+#include <trace/events/oom.h>
 
 int sysctl_panic_on_oom;
 int sysctl_oom_kill_allocating_task;
@@ -55,6 +59,7 @@ void compare_swap_oom_score_adj(int old_val, int new_val)
 	spin_lock_irq(&sighand->siglock);
 	if (current->signal->oom_score_adj == old_val)
 		current->signal->oom_score_adj = new_val;
+	trace_oom_score_adj_update(current);
 	spin_unlock_irq(&sighand->siglock);
 }
 
@@ -74,6 +79,7 @@ int test_set_oom_score_adj(int new_val)
 	spin_lock_irq(&sighand->siglock);
 	old_val = current->signal->oom_score_adj;
 	current->signal->oom_score_adj = new_val;
+	trace_oom_score_adj_update(current);
 	spin_unlock_irq(&sighand->siglock);
 
 	return old_val;
diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 8616ef3025a4..363ba7082ef5 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -42,6 +42,12 @@
 #define MAX_PAUSE		max(HZ/5, 1)
 
 /*
+ * Try to keep balance_dirty_pages() call intervals higher than this many pages
+ * by raising pause time to max_pause when falls below it.
+ */
+#define DIRTY_POLL_THRESH	(128 >> (PAGE_SHIFT - 10))
+
+/*
  * Estimate write bandwidth at 200ms intervals.
  */
 #define BANDWIDTH_INTERVAL	max(HZ/5, 1)
@@ -130,6 +136,191 @@ unsigned long global_dirty_limit;
 static struct prop_descriptor vm_completions;
 
 /*
+ * Work out the current dirty-memory clamping and background writeout
+ * thresholds.
+ *
+ * The main aim here is to lower them aggressively if there is a lot of mapped
+ * memory around.  To avoid stressing page reclaim with lots of unreclaimable
+ * pages.  It is better to clamp down on writers than to start swapping, and
+ * performing lots of scanning.
+ *
+ * We only allow 1/2 of the currently-unmapped memory to be dirtied.
+ *
+ * We don't permit the clamping level to fall below 5% - that is getting rather
+ * excessive.
+ *
+ * We make sure that the background writeout level is below the adjusted
+ * clamping level.
+ */
+
+/*
+ * In a memory zone, there is a certain amount of pages we consider
+ * available for the page cache, which is essentially the number of
+ * free and reclaimable pages, minus some zone reserves to protect
+ * lowmem and the ability to uphold the zone's watermarks without
+ * requiring writeback.
+ *
+ * This number of dirtyable pages is the base value of which the
+ * user-configurable dirty ratio is the effictive number of pages that
+ * are allowed to be actually dirtied.  Per individual zone, or
+ * globally by using the sum of dirtyable pages over all zones.
+ *
+ * Because the user is allowed to specify the dirty limit globally as
+ * absolute number of bytes, calculating the per-zone dirty limit can
+ * require translating the configured limit into a percentage of
+ * global dirtyable memory first.
+ */
+
+static unsigned long highmem_dirtyable_memory(unsigned long total)
+{
+#ifdef CONFIG_HIGHMEM
+	int node;
+	unsigned long x = 0;
+
+	for_each_node_state(node, N_HIGH_MEMORY) {
+		struct zone *z =
+			&NODE_DATA(node)->node_zones[ZONE_HIGHMEM];
+
+		x += zone_page_state(z, NR_FREE_PAGES) +
+		     zone_reclaimable_pages(z) - z->dirty_balance_reserve;
+	}
+	/*
+	 * Make sure that the number of highmem pages is never larger
+	 * than the number of the total dirtyable memory. This can only
+	 * occur in very strange VM situations but we want to make sure
+	 * that this does not occur.
+	 */
+	return min(x, total);
+#else
+	return 0;
+#endif
+}
+
+/**
+ * global_dirtyable_memory - number of globally dirtyable pages
+ *
+ * Returns the global number of pages potentially available for dirty
+ * page cache.  This is the base value for the global dirty limits.
+ */
+unsigned long global_dirtyable_memory(void)
+{
+	unsigned long x;
+
+	x = global_page_state(NR_FREE_PAGES) + global_reclaimable_pages() -
+	    dirty_balance_reserve;
+
+	if (!vm_highmem_is_dirtyable)
+		x -= highmem_dirtyable_memory(x);
+
+	return x + 1;	/* Ensure that we never return 0 */
+}
+
+/*
+ * global_dirty_limits - background-writeback and dirty-throttling thresholds
+ *
+ * Calculate the dirty thresholds based on sysctl parameters
+ * - vm.dirty_background_ratio  or  vm.dirty_background_bytes
+ * - vm.dirty_ratio             or  vm.dirty_bytes
+ * The dirty limits will be lifted by 1/4 for PF_LESS_THROTTLE (ie. nfsd) and
+ * real-time tasks.
+ */
+void global_dirty_limits(unsigned long *pbackground, unsigned long *pdirty)
+{
+	unsigned long background;
+	unsigned long dirty;
+	unsigned long uninitialized_var(available_memory);
+	struct task_struct *tsk;
+
+	if (!vm_dirty_bytes || !dirty_background_bytes)
+		available_memory = global_dirtyable_memory();
+
+	if (vm_dirty_bytes)
+		dirty = DIV_ROUND_UP(vm_dirty_bytes, PAGE_SIZE);
+	else
+		dirty = (vm_dirty_ratio * available_memory) / 100;
+
+	if (dirty_background_bytes)
+		background = DIV_ROUND_UP(dirty_background_bytes, PAGE_SIZE);
+	else
+		background = (dirty_background_ratio * available_memory) / 100;
+
+	if (background >= dirty)
+		background = dirty / 2;
+	tsk = current;
+	if (tsk->flags & PF_LESS_THROTTLE || rt_task(tsk)) {
+		background += background / 4;
+		dirty += dirty / 4;
+	}
+	*pbackground = background;
+	*pdirty = dirty;
+	trace_global_dirty_state(background, dirty);
+}
+
+/**
+ * zone_dirtyable_memory - number of dirtyable pages in a zone
+ * @zone: the zone
+ *
+ * Returns the zone's number of pages potentially available for dirty
+ * page cache.  This is the base value for the per-zone dirty limits.
+ */
+static unsigned long zone_dirtyable_memory(struct zone *zone)
+{
+	/*
+	 * The effective global number of dirtyable pages may exclude
+	 * highmem as a big-picture measure to keep the ratio between
+	 * dirty memory and lowmem reasonable.
+	 *
+	 * But this function is purely about the individual zone and a
+	 * highmem zone can hold its share of dirty pages, so we don't
+	 * care about vm_highmem_is_dirtyable here.
+	 */
+	return zone_page_state(zone, NR_FREE_PAGES) +
+	       zone_reclaimable_pages(zone) -
+	       zone->dirty_balance_reserve;
+}
+
+/**
+ * zone_dirty_limit - maximum number of dirty pages allowed in a zone
+ * @zone: the zone
+ *
+ * Returns the maximum number of dirty pages allowed in a zone, based
+ * on the zone's dirtyable memory.
+ */
+static unsigned long zone_dirty_limit(struct zone *zone)
+{
+	unsigned long zone_memory = zone_dirtyable_memory(zone);
+	struct task_struct *tsk = current;
+	unsigned long dirty;
+
+	if (vm_dirty_bytes)
+		dirty = DIV_ROUND_UP(vm_dirty_bytes, PAGE_SIZE) *
+			zone_memory / global_dirtyable_memory();
+	else
+		dirty = vm_dirty_ratio * zone_memory / 100;
+
+	if (tsk->flags & PF_LESS_THROTTLE || rt_task(tsk))
+		dirty += dirty / 4;
+
+	return dirty;
+}
+
+/**
+ * zone_dirty_ok - tells whether a zone is within its dirty limits
+ * @zone: the zone to check
+ *
+ * Returns %true when the dirty pages in @zone are within the zone's
+ * dirty limit, %false if the limit is exceeded.
+ */
+bool zone_dirty_ok(struct zone *zone)
+{
+	unsigned long limit = zone_dirty_limit(zone);
+
+	return zone_page_state(zone, NR_FILE_DIRTY) +
+	       zone_page_state(zone, NR_UNSTABLE_NFS) +
+	       zone_page_state(zone, NR_WRITEBACK) <= limit;
+}
+
+/*
  * couple the period to the dirty_ratio:
  *
  *   period/2 ~ roundup_pow_of_two(dirty limit)
@@ -141,7 +332,7 @@ static int calc_period_shift(void)
 	if (vm_dirty_bytes)
 		dirty_total = vm_dirty_bytes / PAGE_SIZE;
 	else
-		dirty_total = (vm_dirty_ratio * determine_dirtyable_memory()) /
+		dirty_total = (vm_dirty_ratio * global_dirtyable_memory()) /
 				100;
 	return 2 + ilog2(dirty_total - 1);
 }
@@ -196,7 +387,6 @@ int dirty_ratio_handler(struct ctl_table *table, int write,
 	return ret;
 }
 
-
 int dirty_bytes_handler(struct ctl_table *table, int write,
 		void __user *buffer, size_t *lenp,
 		loff_t *ppos)
@@ -291,67 +481,6 @@ int bdi_set_max_ratio(struct backing_dev_info *bdi, unsigned max_ratio)
 }
 EXPORT_SYMBOL(bdi_set_max_ratio);
 
-/*
- * Work out the current dirty-memory clamping and background writeout
- * thresholds.
- *
- * The main aim here is to lower them aggressively if there is a lot of mapped
- * memory around.  To avoid stressing page reclaim with lots of unreclaimable
- * pages.  It is better to clamp down on writers than to start swapping, and
- * performing lots of scanning.
- *
- * We only allow 1/2 of the currently-unmapped memory to be dirtied.
- *
- * We don't permit the clamping level to fall below 5% - that is getting rather
- * excessive.
- *
- * We make sure that the background writeout level is below the adjusted
- * clamping level.
- */
-
-static unsigned long highmem_dirtyable_memory(unsigned long total)
-{
-#ifdef CONFIG_HIGHMEM
-	int node;
-	unsigned long x = 0;
-
-	for_each_node_state(node, N_HIGH_MEMORY) {
-		struct zone *z =
-			&NODE_DATA(node)->node_zones[ZONE_HIGHMEM];
-
-		x += zone_page_state(z, NR_FREE_PAGES) +
-		     zone_reclaimable_pages(z);
-	}
-	/*
-	 * Make sure that the number of highmem pages is never larger
-	 * than the number of the total dirtyable memory. This can only
-	 * occur in very strange VM situations but we want to make sure
-	 * that this does not occur.
-	 */
-	return min(x, total);
-#else
-	return 0;
-#endif
-}
-
-/**
- * determine_dirtyable_memory - amount of memory that may be used
- *
- * Returns the numebr of pages that can currently be freed and used
- * by the kernel for direct mappings.
- */
-unsigned long determine_dirtyable_memory(void)
-{
-	unsigned long x;
-
-	x = global_page_state(NR_FREE_PAGES) + global_reclaimable_pages();
-
-	if (!vm_highmem_is_dirtyable)
-		x -= highmem_dirtyable_memory(x);
-
-	return x + 1;	/* Ensure that we never return 0 */
-}
-
 static unsigned long dirty_freerun_ceiling(unsigned long thresh,
 					   unsigned long bg_thresh)
 {
@@ -363,47 +492,6 @@ static unsigned long hard_dirty_limit(unsigned long thresh)
 	return max(thresh, global_dirty_limit);
 }
 
-/*
- * global_dirty_limits - background-writeback and dirty-throttling thresholds
- *
- * Calculate the dirty thresholds based on sysctl parameters
- * - vm.dirty_background_ratio  or  vm.dirty_background_bytes
- * - vm.dirty_ratio             or  vm.dirty_bytes
- * The dirty limits will be lifted by 1/4 for PF_LESS_THROTTLE (ie. nfsd) and
- * real-time tasks.
- */
-void global_dirty_limits(unsigned long *pbackground, unsigned long *pdirty)
-{
-	unsigned long background;
-	unsigned long dirty;
-	unsigned long uninitialized_var(available_memory);
-	struct task_struct *tsk;
-
-	if (!vm_dirty_bytes || !dirty_background_bytes)
-		available_memory = determine_dirtyable_memory();
-
-	if (vm_dirty_bytes)
-		dirty = DIV_ROUND_UP(vm_dirty_bytes, PAGE_SIZE);
-	else
-		dirty = (vm_dirty_ratio * available_memory) / 100;
-
-	if (dirty_background_bytes)
-		background = DIV_ROUND_UP(dirty_background_bytes, PAGE_SIZE);
-	else
-		background = (dirty_background_ratio * available_memory) / 100;
-
-	if (background >= dirty)
-		background = dirty / 2;
-	tsk = current;
-	if (tsk->flags & PF_LESS_THROTTLE || rt_task(tsk)) {
-		background += background / 4;
-		dirty += dirty / 4;
-	}
-	*pbackground = background;
-	*pdirty = dirty;
-	trace_global_dirty_state(background, dirty);
-}
-
 /**
  * bdi_dirty_limit - @bdi's share of dirty throttling threshold
  * @bdi: the backing_dev_info to query
@@ -816,6 +904,11 @@ static void bdi_update_dirty_ratelimit(struct backing_dev_info *bdi,
 	 */
 	balanced_dirty_ratelimit = div_u64((u64)task_ratelimit * write_bw,
 					   dirty_rate | 1);
+	/*
+	 * balanced_dirty_ratelimit ~= (write_bw / N) <= write_bw
+	 */
+	if (unlikely(balanced_dirty_ratelimit > write_bw))
+		balanced_dirty_ratelimit = write_bw;
 
 	/*
 	 * We could safely do this and return immediately:
@@ -962,40 +1055,98 @@ static unsigned long dirty_poll_interval(unsigned long dirty,
 	return 1;
 }
 
-static unsigned long bdi_max_pause(struct backing_dev_info *bdi,
-				   unsigned long bdi_dirty)
+static long bdi_max_pause(struct backing_dev_info *bdi,
+			  unsigned long bdi_dirty)
+{
+	long bw = bdi->avg_write_bandwidth;
+	long t;
+
+	/*
+	 * Limit pause time for small memory systems. If sleeping for too long
+	 * time, a small pool of dirty/writeback pages may go empty and disk go
+	 * idle.
+	 *
+	 * 8 serves as the safety ratio.
+	 */
+	t = bdi_dirty / (1 + bw / roundup_pow_of_two(1 + HZ / 8));
+	t++;
+
+	return min_t(long, t, MAX_PAUSE);
+}
+
+static long bdi_min_pause(struct backing_dev_info *bdi,
+			  long max_pause,
+			  unsigned long task_ratelimit,
+			  unsigned long dirty_ratelimit,
+			  int *nr_dirtied_pause)
 {
-	unsigned long bw = bdi->avg_write_bandwidth;
-	unsigned long hi = ilog2(bw);
-	unsigned long lo = ilog2(bdi->dirty_ratelimit);
-	unsigned long t;
+	long hi = ilog2(bdi->avg_write_bandwidth);
+	long lo = ilog2(bdi->dirty_ratelimit);
+	long t;		/* target pause */
+	long pause;	/* estimated next pause */
+	int pages;	/* target nr_dirtied_pause */
 
-	/* target for 20ms max pause on 1-dd case */
-	t = HZ / 50;
+	/* target for 10ms pause on 1-dd case */
+	t = max(1, HZ / 100);
 
 	/*
 	 * Scale up pause time for concurrent dirtiers in order to reduce CPU
 	 * overheads.
 	 *
-	 * (N * 20ms) on 2^N concurrent tasks.
+	 * (N * 10ms) on 2^N concurrent tasks.
 	 */
 	if (hi > lo)
-		t += (hi - lo) * (20 * HZ) / 1024;
+		t += (hi - lo) * (10 * HZ) / 1024;
 
 	/*
-	 * Limit pause time for small memory systems. If sleeping for too long
-	 * time, a small pool of dirty/writeback pages may go empty and disk go
-	 * idle.
+	 * This is a bit convoluted. We try to base the next nr_dirtied_pause
+	 * on the much more stable dirty_ratelimit. However the next pause time
+	 * will be computed based on task_ratelimit and the two rate limits may
+	 * depart considerably at some time. Especially if task_ratelimit goes
+	 * below dirty_ratelimit/2 and the target pause is max_pause, the next
+	 * pause time will be max_pause*2 _trimmed down_ to max_pause.  As a
+	 * result task_ratelimit won't be executed faithfully, which could
+	 * eventually bring down dirty_ratelimit.
 	 *
-	 * 8 serves as the safety ratio.
+	 * We apply two rules to fix it up:
+	 * 1) try to estimate the next pause time and if necessary, use a lower
+	 *    nr_dirtied_pause so as not to exceed max_pause. When this happens,
+	 *    nr_dirtied_pause will be "dancing" with task_ratelimit.
+	 * 2) limit the target pause time to max_pause/2, so that the normal
+	 *    small fluctuations of task_ratelimit won't trigger rule (1) and
+	 *    nr_dirtied_pause will remain as stable as dirty_ratelimit.
 	 */
-	t = min(t, bdi_dirty * HZ / (8 * bw + 1));
+	t = min(t, 1 + max_pause / 2);
+	pages = dirty_ratelimit * t / roundup_pow_of_two(HZ);
 
 	/*
-	 * The pause time will be settled within range (max_pause/4, max_pause).
-	 * Apply a minimal value of 4 to get a non-zero max_pause/4.
+	 * Tiny nr_dirtied_pause is found to hurt I/O performance in the test
+	 * case fio-mmap-randwrite-64k, which does 16*{sync read, async write}.
+	 * When the 16 consecutive reads are often interrupted by some dirty
+	 * throttling pause during the async writes, cfq will go into idles
+	 * (deadline is fine). So push nr_dirtied_pause as high as possible
+	 * until reaches DIRTY_POLL_THRESH=32 pages.
 	 */
-	return clamp_val(t, 4, MAX_PAUSE);
+	if (pages < DIRTY_POLL_THRESH) {
+		t = max_pause;
+		pages = dirty_ratelimit * t / roundup_pow_of_two(HZ);
+		if (pages > DIRTY_POLL_THRESH) {
+			pages = DIRTY_POLL_THRESH;
+			t = HZ * DIRTY_POLL_THRESH / dirty_ratelimit;
+		}
+	}
+
+	pause = HZ * pages / (task_ratelimit + 1);
+	if (pause > max_pause) {
+		t = max_pause;
+		pages = task_ratelimit * t / roundup_pow_of_two(HZ);
+	}
+
+	*nr_dirtied_pause = pages;
+	/*
+	 * The minimal pause time will normally be half the target pause time.
+	 */
+	return pages >= DIRTY_POLL_THRESH ? 1 + t / 2 : t;
 }
 
 /*
@@ -1016,16 +1167,21 @@ static void balance_dirty_pages(struct address_space *mapping,
 	unsigned long background_thresh;
 	unsigned long dirty_thresh;
 	unsigned long bdi_thresh;
-	long pause = 0;
-	long uninitialized_var(max_pause);
+	long period;
+	long pause;
+	long max_pause;
+	long min_pause;
+	int nr_dirtied_pause;
 	bool dirty_exceeded = false;
 	unsigned long task_ratelimit;
-	unsigned long uninitialized_var(dirty_ratelimit);
+	unsigned long dirty_ratelimit;
 	unsigned long pos_ratio;
 	struct backing_dev_info *bdi = mapping->backing_dev_info;
 	unsigned long start_time = jiffies;
 
 	for (;;) {
+		unsigned long now = jiffies;
+
 		/*
 		 * Unstable writes are a feature of certain networked
 		 * filesystems (i.e. NFS) in which data may have been
@@ -1045,8 +1201,13 @@ static void balance_dirty_pages(struct address_space *mapping,
 		 */
 		freerun = dirty_freerun_ceiling(dirty_thresh,
 						background_thresh);
-		if (nr_dirty <= freerun)
+		if (nr_dirty <= freerun) {
+			current->dirty_paused_when = now;
+			current->nr_dirtied = 0;
+			current->nr_dirtied_pause =
+				dirty_poll_interval(nr_dirty, dirty_thresh);
 			break;
+		}
 
 		if (unlikely(!writeback_in_progress(bdi)))
 			bdi_start_background_writeback(bdi);
@@ -1086,7 +1247,7 @@ static void balance_dirty_pages(struct address_space *mapping,
 				    bdi_stat(bdi, BDI_WRITEBACK);
 		}
 
-		dirty_exceeded = (bdi_dirty > bdi_thresh) ||
+		dirty_exceeded = (bdi_dirty > bdi_thresh) &&
 				  (nr_dirty > dirty_thresh);
 		if (dirty_exceeded && !bdi->dirty_exceeded)
 			bdi->dirty_exceeded = 1;
@@ -1095,20 +1256,34 @@ static void balance_dirty_pages(struct address_space *mapping,
 				     nr_dirty, bdi_thresh, bdi_dirty,
 				     start_time);
 
-		max_pause = bdi_max_pause(bdi, bdi_dirty);
-
 		dirty_ratelimit = bdi->dirty_ratelimit;
 		pos_ratio = bdi_position_ratio(bdi, dirty_thresh,
 					       background_thresh, nr_dirty,
 					       bdi_thresh, bdi_dirty);
 		task_ratelimit = ((u64)dirty_ratelimit * pos_ratio) >>
 							RATELIMIT_CALC_SHIFT;
+		max_pause = bdi_max_pause(bdi, bdi_dirty);
+		min_pause = bdi_min_pause(bdi, max_pause,
+					  task_ratelimit, dirty_ratelimit,
+					  &nr_dirtied_pause);
+
 		if (unlikely(task_ratelimit == 0)) {
+			period = max_pause;
 			pause = max_pause;
 			goto pause;
 		}
-		pause = HZ * pages_dirtied / task_ratelimit;
-		if (unlikely(pause <= 0)) {
+		period = HZ * pages_dirtied / task_ratelimit;
+		pause = period;
+		if (current->dirty_paused_when)
+			pause -= now - current->dirty_paused_when;
+		/*
+		 * For less than 1s think time (ext3/4 may block the dirtier
+		 * for up to 800ms from time to time on 1-HDD; so does xfs,
+		 * however at much less frequency), try to compensate it in
+		 * future periods by updating the virtual time; otherwise just
+		 * do a reset, as it may be a light dirtier.
+		 */
+		if (pause < min_pause) {
 			trace_balance_dirty_pages(bdi,
 						  dirty_thresh,
 						  background_thresh,
@@ -1118,12 +1293,24 @@ static void balance_dirty_pages(struct address_space *mapping,
 						  dirty_ratelimit,
 						  task_ratelimit,
 						  pages_dirtied,
-						  pause,
+						  period,
+						  min(pause, 0L),
 						  start_time);
-			pause = 1; /* avoid resetting nr_dirtied_pause below */
+			if (pause < -HZ) {
+				current->dirty_paused_when = now;
+				current->nr_dirtied = 0;
+			} else if (period) {
+				current->dirty_paused_when += period;
+				current->nr_dirtied = 0;
+			} else if (current->nr_dirtied_pause <= pages_dirtied)
+				current->nr_dirtied_pause += pages_dirtied;
 			break;
 		}
-		pause = min(pause, max_pause);
+		if (unlikely(pause > max_pause)) {
+			/* for occasional dropped task_ratelimit */
+			now += min(pause - max_pause, max_pause);
+			pause = max_pause;
+		}
 
 pause:
 		trace_balance_dirty_pages(bdi,
@@ -1135,11 +1322,16 @@ pause:
 					  dirty_ratelimit,
 					  task_ratelimit,
 					  pages_dirtied,
+					  period,
 					  pause,
 					  start_time);
 		__set_current_state(TASK_KILLABLE);
 		io_schedule_timeout(pause);
 
+		current->dirty_paused_when = now + pause;
+		current->nr_dirtied = 0;
+		current->nr_dirtied_pause = nr_dirtied_pause;
+
 		/*
 		 * This is typically equal to (nr_dirty < dirty_thresh) and can
 		 * also keep "1000+ dd on a slow USB stick" under control.
@@ -1167,23 +1359,6 @@ pause:
 	if (!dirty_exceeded && bdi->dirty_exceeded)
 		bdi->dirty_exceeded = 0;
 
-	current->nr_dirtied = 0;
-	if (pause == 0) { /* in freerun area */
-		current->nr_dirtied_pause =
-				dirty_poll_interval(nr_dirty, dirty_thresh);
-	} else if (pause <= max_pause / 4 &&
-		   pages_dirtied >= current->nr_dirtied_pause) {
-		current->nr_dirtied_pause = clamp_val(
-					dirty_ratelimit * (max_pause / 2) / HZ,
-					pages_dirtied + pages_dirtied / 8,
-					pages_dirtied * 4);
-	} else if (pause >= max_pause) {
-		current->nr_dirtied_pause = 1 | clamp_val(
-					dirty_ratelimit * (max_pause / 2) / HZ,
-					pages_dirtied / 4,
-					pages_dirtied - pages_dirtied / 8);
-	}
-
 	if (writeback_in_progress(bdi))
 		return;
 
@@ -1214,6 +1389,22 @@ void set_page_dirty_balance(struct page *page, int page_mkwrite)
 
 static DEFINE_PER_CPU(int, bdp_ratelimits);
 
+/*
+ * Normal tasks are throttled by
+ *	loop {
+ *		dirty tsk->nr_dirtied_pause pages;
+ *		take a snap in balance_dirty_pages();
+ *	}
+ * However there is a worst case. If every task exit immediately when dirtied
+ * (tsk->nr_dirtied_pause - 1) pages, balance_dirty_pages() will never be
+ * called to throttle the page dirties. The solution is to save the not yet
+ * throttled page dirties in dirty_throttle_leaks on task exit and charge them
+ * randomly into the running tasks. This works well for the above worst case,
+ * as the new task will pick up and accumulate the old task's leaked dirty
+ * count and eventually get throttled.
+ */
+DEFINE_PER_CPU(int, dirty_throttle_leaks) = 0;
+
 /**
  * balance_dirty_pages_ratelimited_nr - balance dirty memory state
  * @mapping: address_space which was dirtied
@@ -1242,8 +1433,6 @@ void balance_dirty_pages_ratelimited_nr(struct address_space *mapping,
 	if (bdi->dirty_exceeded)
 		ratelimit = min(ratelimit, 32 >> (PAGE_SHIFT - 10));
 
-	current->nr_dirtied += nr_pages_dirtied;
-
 	preempt_disable();
 	/*
 	 * This prevents one CPU to accumulate too many dirtied pages without
@@ -1254,12 +1443,20 @@ void balance_dirty_pages_ratelimited_nr(struct address_space *mapping,
 	p =  &__get_cpu_var(bdp_ratelimits);
 	if (unlikely(current->nr_dirtied >= ratelimit))
 		*p = 0;
-	else {
-		*p += nr_pages_dirtied;
-		if (unlikely(*p >= ratelimit_pages)) {
-			*p = 0;
-			ratelimit = 0;
-		}
+	else if (unlikely(*p >= ratelimit_pages)) {
+		*p = 0;
+		ratelimit = 0;
+	}
+	/*
+	 * Pick up the dirtied pages by the exited tasks. This avoids lots of
+	 * short-lived tasks (eg. gcc invocations in a kernel build) escaping
+	 * the dirty throttling and livelock other long-run dirtiers.
+	 */
+	p = &__get_cpu_var(dirty_throttle_leaks);
+	if (*p > 0 && current->nr_dirtied < ratelimit) {
+		nr_pages_dirtied = min(*p, ratelimit - current->nr_dirtied);
+		*p -= nr_pages_dirtied;
+		current->nr_dirtied += nr_pages_dirtied;
 	}
 	preempt_enable();
 
@@ -1741,6 +1938,8 @@ void account_page_dirtied(struct page *page, struct address_space *mapping)
 		__inc_bdi_stat(mapping->backing_dev_info, BDI_RECLAIMABLE);
 		__inc_bdi_stat(mapping->backing_dev_info, BDI_DIRTIED);
 		task_io_account_write(PAGE_CACHE_SIZE);
+		current->nr_dirtied++;
+		this_cpu_inc(bdp_ratelimits);
 	}
 }
 EXPORT_SYMBOL(account_page_dirtied);
@@ -1801,6 +2000,24 @@ int __set_page_dirty_nobuffers(struct page *page)
 EXPORT_SYMBOL(__set_page_dirty_nobuffers);
 
 /*
+ * Call this whenever redirtying a page, to de-account the dirty counters
+ * (NR_DIRTIED, BDI_DIRTIED, tsk->nr_dirtied), so that they match the written
+ * counters (NR_WRITTEN, BDI_WRITTEN) in long term. The mismatches will lead to
+ * systematic errors in balanced_dirty_ratelimit and the dirty pages position
+ * control.
+ */
+void account_page_redirty(struct page *page)
+{
+	struct address_space *mapping = page->mapping;
+	if (mapping && mapping_cap_account_dirty(mapping)) {
+		current->nr_dirtied--;
+		dec_zone_page_state(page, NR_DIRTIED);
+		dec_bdi_stat(mapping->backing_dev_info, BDI_DIRTIED);
+	}
+}
+EXPORT_SYMBOL(account_page_redirty);
+
+/*
  * When a writepage implementation decides that it doesn't want to write this
  * page for some reason, it should redirty the locked page via
  * redirty_page_for_writepage() and it should then unlock the page and return 0
@@ -1808,6 +2025,7 @@ EXPORT_SYMBOL(__set_page_dirty_nobuffers);
 int redirty_page_for_writepage(struct writeback_control *wbc, struct page *page)
 {
 	wbc->pages_skipped++;
+	account_page_redirty(page);
 	return __set_page_dirty_nobuffers(page);
 }
 EXPORT_SYMBOL(redirty_page_for_writepage);
diff --git a/mm/page_alloc.c b/mm/page_alloc.c
index 7990ca154d1b..794e6715c226 100644
--- a/mm/page_alloc.c
+++ b/mm/page_alloc.c
@@ -57,6 +57,7 @@
 #include <linux/ftrace_event.h>
 #include <linux/memcontrol.h>
 #include <linux/prefetch.h>
+#include <linux/page-debug-flags.h>
 
 #include <asm/tlbflush.h>
 #include <asm/div64.h>
@@ -96,6 +97,14 @@ EXPORT_SYMBOL(node_states);
 
 unsigned long totalram_pages __read_mostly;
 unsigned long totalreserve_pages __read_mostly;
+/*
+ * When calculating the number of globally allowed dirty pages, there
+ * is a certain number of per-zone reserves that should not be
+ * considered dirtyable memory.  This is the sum of those reserves
+ * over all existing zones that contribute dirtyable memory.
+ */
+unsigned long dirty_balance_reserve __read_mostly;
+
 int percpu_pagelist_fraction;
 gfp_t gfp_allowed_mask __read_mostly = GFP_BOOT_MASK;
 
@@ -127,6 +136,13 @@ void pm_restrict_gfp_mask(void)
 	saved_gfp_mask = gfp_allowed_mask;
 	gfp_allowed_mask &= ~GFP_IOFS;
 }
+
+bool pm_suspended_storage(void)
+{
+	if ((gfp_allowed_mask & GFP_IOFS) == GFP_IOFS)
+		return false;
+	return true;
+}
 #endif /* CONFIG_PM_SLEEP */
 
 #ifdef CONFIG_HUGETLB_PAGE_SIZE_VARIABLE
@@ -381,6 +397,37 @@ static inline void prep_zero_page(struct page *page, int order, gfp_t gfp_flags)
 		clear_highpage(page + i);
 }
 
+#ifdef CONFIG_DEBUG_PAGEALLOC
+unsigned int _debug_guardpage_minorder;
+
+static int __init debug_guardpage_minorder_setup(char *buf)
+{
+	unsigned long res;
+
+	if (kstrtoul(buf, 10, &res) < 0 ||  res > MAX_ORDER / 2) {
+		printk(KERN_ERR "Bad debug_guardpage_minorder value\n");
+		return 0;
+	}
+	_debug_guardpage_minorder = res;
+	printk(KERN_INFO "Setting debug_guardpage_minorder to %lu\n", res);
+	return 0;
+}
+__setup("debug_guardpage_minorder=", debug_guardpage_minorder_setup);
+
+static inline void set_page_guard_flag(struct page *page)
+{
+	__set_bit(PAGE_DEBUG_FLAG_GUARD, &page->debug_flags);
+}
+
+static inline void clear_page_guard_flag(struct page *page)
+{
+	__clear_bit(PAGE_DEBUG_FLAG_GUARD, &page->debug_flags);
+}
+#else
+static inline void set_page_guard_flag(struct page *page) { }
+static inline void clear_page_guard_flag(struct page *page) { }
+#endif
+
 static inline void set_page_order(struct page *page, int order)
 {
 	set_page_private(page, order);
@@ -438,6 +485,11 @@ static inline int page_is_buddy(struct page *page, struct page *buddy,
 	if (page_zone_id(page) != page_zone_id(buddy))
 		return 0;
 
+	if (page_is_guard(buddy) && page_order(buddy) == order) {
+		VM_BUG_ON(page_count(buddy) != 0);
+		return 1;
+	}
+
 	if (PageBuddy(buddy) && page_order(buddy) == order) {
 		VM_BUG_ON(page_count(buddy) != 0);
 		return 1;
@@ -494,11 +546,19 @@ static inline void __free_one_page(struct page *page,
 		buddy = page + (buddy_idx - page_idx);
 		if (!page_is_buddy(page, buddy, order))
 			break;
-
-		/* Our buddy is free, merge with it and move up one order. */
-		list_del(&buddy->lru);
-		zone->free_area[order].nr_free--;
-		rmv_page_order(buddy);
+		/*
+		 * Our buddy is free or it is CONFIG_DEBUG_PAGEALLOC guard page,
+		 * merge with it and move up one order.
+		 */
+		if (page_is_guard(buddy)) {
+			clear_page_guard_flag(buddy);
+			set_page_private(page, 0);
+			__mod_zone_page_state(zone, NR_FREE_PAGES, 1 << order);
+		} else {
+			list_del(&buddy->lru);
+			zone->free_area[order].nr_free--;
+			rmv_page_order(buddy);
+		}
 		combined_idx = buddy_idx & page_idx;
 		page = page + (combined_idx - page_idx);
 		page_idx = combined_idx;
@@ -632,7 +692,7 @@ static bool free_pages_prepare(struct page *page, unsigned int order)
 	int i;
 	int bad = 0;
 
-	trace_mm_page_free_direct(page, order);
+	trace_mm_page_free(page, order);
 	kmemcheck_free_shadow(page, order);
 
 	if (PageAnon(page))
@@ -670,32 +730,23 @@ static void __free_pages_ok(struct page *page, unsigned int order)
 	local_irq_restore(flags);
 }
 
-/*
- * permit the bootmem allocator to evade page validation on high-order frees
- */
 void __meminit __free_pages_bootmem(struct page *page, unsigned int order)
 {
-	if (order == 0) {
-		__ClearPageReserved(page);
-		set_page_count(page, 0);
-		set_page_refcounted(page);
-		__free_page(page);
-	} else {
-		int loop;
-
-		prefetchw(page);
-		for (loop = 0; loop < (1 << order); loop++) {
-			struct page *p = &page[loop];
+	unsigned int nr_pages = 1 << order;
+	unsigned int loop;
 
-			if (loop + 1 < (1 << order))
-				prefetchw(p + 1);
-			__ClearPageReserved(p);
-			set_page_count(p, 0);
-		}
+	prefetchw(page);
+	for (loop = 0; loop < nr_pages; loop++) {
+		struct page *p = &page[loop];
 
-		set_page_refcounted(page);
-		__free_pages(page, order);
+		if (loop + 1 < nr_pages)
+			prefetchw(p + 1);
+		__ClearPageReserved(p);
+		set_page_count(p, 0);
 	}
+
+	set_page_refcounted(page);
+	__free_pages(page, order);
 }
 
 
@@ -724,6 +775,23 @@ static inline void expand(struct zone *zone, struct page *page,
 		high--;
 		size >>= 1;
 		VM_BUG_ON(bad_range(zone, &page[size]));
+
+#ifdef CONFIG_DEBUG_PAGEALLOC
+		if (high < debug_guardpage_minorder()) {
+			/*
+			 * Mark as guard pages (or page), that will allow to
+			 * merge back to allocator when buddy will be freed.
+			 * Corresponding page table entries will not be touched,
+			 * pages will stay not present in virtual address space
+			 */
+			INIT_LIST_HEAD(&page[size].lru);
+			set_page_guard_flag(&page[size]);
+			set_page_private(&page[size], high);
+			/* Guard pages are not available for any usage */
+			__mod_zone_page_state(zone, NR_FREE_PAGES, -(1 << high));
+			continue;
+		}
+#endif
 		list_add(&page[size].lru, &area->free_list[migratetype]);
 		area->nr_free++;
 		set_page_order(&page[size], high);
@@ -1189,6 +1257,19 @@ out:
 }
 
 /*
+ * Free a list of 0-order pages
+ */
+void free_hot_cold_page_list(struct list_head *list, int cold)
+{
+	struct page *page, *next;
+
+	list_for_each_entry_safe(page, next, list, lru) {
+		trace_mm_page_free_batched(page, cold);
+		free_hot_cold_page(page, cold);
+	}
+}
+
+/*
  * split_page takes a non-compound higher-order page, and splits it into
  * n (1<<order) sub-pages: page[0..n]
  * Each sub-page must be freed individually.
@@ -1435,7 +1516,7 @@ static bool __zone_watermark_ok(struct zone *z, int order, unsigned long mark,
 	long min = mark;
 	int o;
 
-	free_pages -= (1 << order) + 1;
+	free_pages -= (1 << order) - 1;
 	if (alloc_flags & ALLOC_HIGH)
 		min -= min / 2;
 	if (alloc_flags & ALLOC_HARDER)
@@ -1645,6 +1726,35 @@ zonelist_scan:
 		if ((alloc_flags & ALLOC_CPUSET) &&
 			!cpuset_zone_allowed_softwall(zone, gfp_mask))
 				continue;
+		/*
+		 * When allocating a page cache page for writing, we
+		 * want to get it from a zone that is within its dirty
+		 * limit, such that no single zone holds more than its
+		 * proportional share of globally allowed dirty pages.
+		 * The dirty limits take into account the zone's
+		 * lowmem reserves and high watermark so that kswapd
+		 * should be able to balance it without having to
+		 * write pages from its LRU list.
+		 *
+		 * This may look like it could increase pressure on
+		 * lower zones by failing allocations in higher zones
+		 * before they are full.  But the pages that do spill
+		 * over are limited as the lower zones are protected
+		 * by this very same mechanism.  It should not become
+		 * a practical burden to them.
+		 *
+		 * XXX: For now, allow allocations to potentially
+		 * exceed the per-zone dirty limit in the slowpath
+		 * (ALLOC_WMARK_LOW unset) before going into reclaim,
+		 * which is important when on a NUMA setup the allowed
+		 * zones are together not big enough to reach the
+		 * global limit.  The proper fix for these situations
+		 * will require awareness of zones in the
+		 * dirty-throttling and the flusher threads.
+		 */
+		if ((alloc_flags & ALLOC_WMARK_LOW) &&
+		    (gfp_mask & __GFP_WRITE) && !zone_dirty_ok(zone))
+			goto this_zone_full;
 
 		BUILD_BUG_ON(ALLOC_NO_WATERMARKS < NR_WMARK);
 		if (!(alloc_flags & ALLOC_NO_WATERMARKS)) {
@@ -1734,7 +1844,8 @@ void warn_alloc_failed(gfp_t gfp_mask, int order, const char *fmt, ...)
 {
 	unsigned int filter = SHOW_MEM_FILTER_NODES;
 
-	if ((gfp_mask & __GFP_NOWARN) || !__ratelimit(&nopage_rs))
+	if ((gfp_mask & __GFP_NOWARN) || !__ratelimit(&nopage_rs) ||
+	    debug_guardpage_minorder() > 0)
 		return;
 
 	/*
@@ -1773,12 +1884,25 @@ void warn_alloc_failed(gfp_t gfp_mask, int order, const char *fmt, ...)
 
 static inline int
 should_alloc_retry(gfp_t gfp_mask, unsigned int order,
+				unsigned long did_some_progress,
 				unsigned long pages_reclaimed)
 {
 	/* Do not loop if specifically requested */
 	if (gfp_mask & __GFP_NORETRY)
 		return 0;
 
+	/* Always retry if specifically requested */
+	if (gfp_mask & __GFP_NOFAIL)
+		return 1;
+
+	/*
+	 * Suspend converts GFP_KERNEL to __GFP_WAIT which can prevent reclaim
+	 * making forward progress without invoking OOM. Suspend also disables
+	 * storage devices so kswapd will not help. Bail if we are suspending.
+	 */
+	if (!did_some_progress && pm_suspended_storage())
+		return 0;
+
 	/*
 	 * In this implementation, order <= PAGE_ALLOC_COSTLY_ORDER
 	 * means __GFP_NOFAIL, but that may not be true in other
@@ -1797,13 +1921,6 @@ should_alloc_retry(gfp_t gfp_mask, unsigned int order,
 	if (gfp_mask & __GFP_REPEAT && pages_reclaimed < (1 << order))
 		return 1;
 
-	/*
-	 * Don't let big-order allocations loop unless the caller
-	 * explicitly requests that.
-	 */
-	if (gfp_mask & __GFP_NOFAIL)
-		return 1;
-
 	return 0;
 }
 
@@ -2196,7 +2313,8 @@ rebalance:
 
 	/* Check if we should retry the allocation */
 	pages_reclaimed += did_some_progress;
-	if (should_alloc_retry(gfp_mask, order, pages_reclaimed)) {
+	if (should_alloc_retry(gfp_mask, order, did_some_progress,
+						pages_reclaimed)) {
 		/* Wait for some write requests to complete then retry */
 		wait_iff_congested(preferred_zone, BLK_RW_ASYNC, HZ/50);
 		goto rebalance;
@@ -2306,16 +2424,6 @@ unsigned long get_zeroed_page(gfp_t gfp_mask)
 }
 EXPORT_SYMBOL(get_zeroed_page);
 
-void __pagevec_free(struct pagevec *pvec)
-{
-	int i = pagevec_count(pvec);
-
-	while (--i >= 0) {
-		trace_mm_pagevec_free(pvec->pages[i], pvec->cold);
-		free_hot_cold_page(pvec->pages[i], pvec->cold);
-	}
-}
-
 void __free_pages(struct page *page, unsigned int order)
 {
 	if (put_page_testzero(page)) {
@@ -3385,25 +3493,33 @@ static void setup_zone_migrate_reserve(struct zone *zone)
 		if (page_to_nid(page) != zone_to_nid(zone))
 			continue;
 
-		/* Blocks with reserved pages will never free, skip them. */
-		block_end_pfn = min(pfn + pageblock_nr_pages, end_pfn);
-		if (pageblock_is_reserved(pfn, block_end_pfn))
-			continue;
-
 		block_migratetype = get_pageblock_migratetype(page);
 
-		/* If this block is reserved, account for it */
-		if (reserve > 0 && block_migratetype == MIGRATE_RESERVE) {
-			reserve--;
-			continue;
-		}
+		/* Only test what is necessary when the reserves are not met */
+		if (reserve > 0) {
+			/*
+			 * Blocks with reserved pages will never free, skip
+			 * them.
+			 */
+			block_end_pfn = min(pfn + pageblock_nr_pages, end_pfn);
+			if (pageblock_is_reserved(pfn, block_end_pfn))
+				continue;
 
-		/* Suitable for reserving if this block is movable */
-		if (reserve > 0 && block_migratetype == MIGRATE_MOVABLE) {
-			set_pageblock_migratetype(page, MIGRATE_RESERVE);
-			move_freepages_block(zone, page, MIGRATE_RESERVE);
-			reserve--;
-			continue;
+			/* If this block is reserved, account for it */
+			if (block_migratetype == MIGRATE_RESERVE) {
+				reserve--;
+				continue;
+			}
+
+			/* Suitable for reserving if this block is movable */
+			if (block_migratetype == MIGRATE_MOVABLE) {
+				set_pageblock_migratetype(page,
+							MIGRATE_RESERVE);
+				move_freepages_block(zone, page,
+							MIGRATE_RESERVE);
+				reserve--;
+				continue;
+			}
 		}
 
 		/*
@@ -4734,8 +4850,19 @@ static void calculate_totalreserve_pages(void)
 			if (max > zone->present_pages)
 				max = zone->present_pages;
 			reserve_pages += max;
+			/*
+			 * Lowmem reserves are not available to
+			 * GFP_HIGHUSER page cache allocations and
+			 * kswapd tries to balance zones to their high
+			 * watermark.  As a result, neither should be
+			 * regarded as dirtyable memory, to prevent a
+			 * situation where reclaim has to clean pages
+			 * in order to balance the zones.
+			 */
+			zone->dirty_balance_reserve = max;
 		}
 	}
+	dirty_balance_reserve = reserve_pages;
 	totalreserve_pages = reserve_pages;
 }
 
diff --git a/mm/rmap.c b/mm/rmap.c
index a4fd3680038b..a2e5ce1fa081 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -272,6 +272,51 @@ int anon_vma_clone(struct vm_area_struct *dst, struct vm_area_struct *src)
 }
 
 /*
+ * Some rmap walk that needs to find all ptes/hugepmds without false
+ * negatives (like migrate and split_huge_page) running concurrent
+ * with operations that copy or move pagetables (like mremap() and
+ * fork()) to be safe. They depend on the anon_vma "same_anon_vma"
+ * list to be in a certain order: the dst_vma must be placed after the
+ * src_vma in the list. This is always guaranteed by fork() but
+ * mremap() needs to call this function to enforce it in case the
+ * dst_vma isn't newly allocated and chained with the anon_vma_clone()
+ * function but just an extension of a pre-existing vma through
+ * vma_merge.
+ *
+ * NOTE: the same_anon_vma list can still be changed by other
+ * processes while mremap runs because mremap doesn't hold the
+ * anon_vma mutex to prevent modifications to the list while it
+ * runs. All we need to enforce is that the relative order of this
+ * process vmas isn't changing (we don't care about other vmas
+ * order). Each vma corresponds to an anon_vma_chain structure so
+ * there's no risk that other processes calling anon_vma_moveto_tail()
+ * and changing the same_anon_vma list under mremap() will screw with
+ * the relative order of this process vmas in the list, because we
+ * they can't alter the order of any vma that belongs to this
+ * process. And there can't be another anon_vma_moveto_tail() running
+ * concurrently with mremap() coming from this process because we hold
+ * the mmap_sem for the whole mremap(). fork() ordering dependency
+ * also shouldn't be affected because fork() only cares that the
+ * parent vmas are placed in the list before the child vmas and
+ * anon_vma_moveto_tail() won't reorder vmas from either the fork()
+ * parent or child.
+ */
+void anon_vma_moveto_tail(struct vm_area_struct *dst)
+{
+	struct anon_vma_chain *pavc;
+	struct anon_vma *root = NULL;
+
+	list_for_each_entry_reverse(pavc, &dst->anon_vma_chain, same_vma) {
+		struct anon_vma *anon_vma = pavc->anon_vma;
+		VM_BUG_ON(pavc->vma != dst);
+		root = lock_anon_vma_root(root, anon_vma);
+		list_del(&pavc->same_anon_vma);
+		list_add_tail(&pavc->same_anon_vma, &anon_vma->head);
+	}
+	unlock_anon_vma_root(root);
+}
+
+/*
  * Attach vma to its own anon_vma, as well as to the anon_vmas that
  * the corresponding VMA in the parent process is attached to.
  * Returns 0 on success, non-zero on failure.
diff --git a/mm/slab.c b/mm/slab.c
index 83311c9aaf9d..2acfa0d90943 100644
--- a/mm/slab.c
+++ b/mm/slab.c
@@ -121,6 +121,8 @@
 #include	<asm/tlbflush.h>
 #include	<asm/page.h>
 
+#include <trace/events/kmem.h>
+
 /*
  * DEBUG	- 1 for kmem_cache_create() to honour; SLAB_RED_ZONE & SLAB_POISON.
  *		  0 for faster, smaller code (especially in the critical paths).
diff --git a/mm/slub.c b/mm/slub.c
index 09ccee8fb58e..d99acbf14e01 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1978,7 +1978,7 @@ int put_cpu_partial(struct kmem_cache *s, struct page *page, int drain)
 		page->pobjects = pobjects;
 		page->next = oldpage;
 
-	} while (irqsafe_cpu_cmpxchg(s->cpu_slab->partial, oldpage, page) != oldpage);
+	} while (this_cpu_cmpxchg(s->cpu_slab->partial, oldpage, page) != oldpage);
 	stat(s, CPU_PARTIAL_FREE);
 	return pobjects;
 }
@@ -2304,7 +2304,7 @@ redo:
 		 * Since this is without lock semantics the protection is only against
 		 * code executing on this cpu *not* from access by other cpus.
 		 */
-		if (unlikely(!irqsafe_cpu_cmpxchg_double(
+		if (unlikely(!this_cpu_cmpxchg_double(
 				s->cpu_slab->freelist, s->cpu_slab->tid,
 				object, tid,
 				get_freepointer_safe(s, object), next_tid(tid)))) {
@@ -2534,7 +2534,7 @@ redo:
 	if (likely(page == c->page)) {
 		set_freepointer(s, object, c->freelist);
 
-		if (unlikely(!irqsafe_cpu_cmpxchg_double(
+		if (unlikely(!this_cpu_cmpxchg_double(
 				s->cpu_slab->freelist, s->cpu_slab->tid,
 				c->freelist, tid,
 				object, next_tid(tid)))) {
@@ -3654,6 +3654,9 @@ void __init kmem_cache_init(void)
 	struct kmem_cache *temp_kmem_cache_node;
 	unsigned long kmalloc_size;
 
+	if (debug_guardpage_minorder())
+		slub_max_order = 0;
+
 	kmem_size = offsetof(struct kmem_cache, node) +
 				nr_node_ids * sizeof(struct kmem_cache_node *);
 
diff --git a/mm/swap.c b/mm/swap.c
index a91caf754d9b..67a09a633a09 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -585,11 +585,10 @@ int lru_add_drain_all(void)
 void release_pages(struct page **pages, int nr, int cold)
 {
 	int i;
-	struct pagevec pages_to_free;
+	LIST_HEAD(pages_to_free);
 	struct zone *zone = NULL;
 	unsigned long uninitialized_var(flags);
 
-	pagevec_init(&pages_to_free, cold);
 	for (i = 0; i < nr; i++) {
 		struct page *page = pages[i];
 
@@ -620,19 +619,12 @@ void release_pages(struct page **pages, int nr, int cold)
 			del_page_from_lru(zone, page);
 		}
 
-		if (!pagevec_add(&pages_to_free, page)) {
-			if (zone) {
-				spin_unlock_irqrestore(&zone->lru_lock, flags);
-				zone = NULL;
-			}
-			__pagevec_free(&pages_to_free);
-			pagevec_reinit(&pages_to_free);
-  		}
+		list_add(&page->lru, &pages_to_free);
 	}
 	if (zone)
 		spin_unlock_irqrestore(&zone->lru_lock, flags);
 
-	pagevec_free(&pages_to_free);
+	free_hot_cold_page_list(&pages_to_free, cold);
 }
 EXPORT_SYMBOL(release_pages);
 
diff --git a/mm/swapfile.c b/mm/swapfile.c
index b1cd12060723..9520592d4231 100644
--- a/mm/swapfile.c
+++ b/mm/swapfile.c
@@ -667,10 +667,10 @@ int try_to_free_swap(struct page *page)
 	 * original page might be freed under memory pressure, then
 	 * later read back in from swap, now with the wrong data.
 	 *
-	 * Hibernation clears bits from gfp_allowed_mask to prevent
-	 * memory reclaim from writing to disk, so check that here.
+	 * Hibration suspends storage while it is writing the image
+	 * to disk so check that here.
 	 */
-	if (!(gfp_allowed_mask & __GFP_IO))
+	if (pm_suspended_storage())
 		return 0;
 
 	delete_from_swap_cache(page);
diff --git a/mm/vmalloc.c b/mm/vmalloc.c
index 21fdf46ad5aa..877ca046f43d 100644
--- a/mm/vmalloc.c
+++ b/mm/vmalloc.c
@@ -256,7 +256,7 @@ struct vmap_area {
 	struct rb_node rb_node;		/* address sorted rbtree */
 	struct list_head list;		/* address sorted list */
 	struct list_head purge_list;	/* "lazy purge" list */
-	void *private;
+	struct vm_struct *vm;
 	struct rcu_head rcu_head;
 };
 
@@ -1285,7 +1285,7 @@ static void setup_vmalloc_vm(struct vm_struct *vm, struct vmap_area *va,
 	vm->addr = (void *)va->va_start;
 	vm->size = va->va_end - va->va_start;
 	vm->caller = caller;
-	va->private = vm;
+	va->vm = vm;
 	va->flags |= VM_VM_AREA;
 }
 
@@ -1408,7 +1408,7 @@ static struct vm_struct *find_vm_area(const void *addr)
 
 	va = find_vmap_area((unsigned long)addr);
 	if (va && va->flags & VM_VM_AREA)
-		return va->private;
+		return va->vm;
 
 	return NULL;
 }
@@ -1427,7 +1427,7 @@ struct vm_struct *remove_vm_area(const void *addr)
 
 	va = find_vmap_area((unsigned long)addr);
 	if (va && va->flags & VM_VM_AREA) {
-		struct vm_struct *vm = va->private;
+		struct vm_struct *vm = va->vm;
 
 		if (!(vm->flags & VM_UNLIST)) {
 			struct vm_struct *tmp, **p;
diff --git a/mm/vmscan.c b/mm/vmscan.c
index 11adc890ce30..26f4a8a4e0c7 100644
--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -715,7 +715,13 @@ static enum page_references page_check_references(struct page *page,
 		 */
 		SetPageReferenced(page);
 
-		if (referenced_page)
+		if (referenced_page || referenced_ptes > 1)
+			return PAGEREF_ACTIVATE;
+
+		/*
+		 * Activate file-backed executable pages after first usage.
+		 */
+		if (vm_flags & VM_EXEC)
 			return PAGEREF_ACTIVATE;
 
 		return PAGEREF_KEEP;
@@ -728,24 +734,6 @@ static enum page_references page_check_references(struct page *page,
 	return PAGEREF_RECLAIM;
 }
 
-static noinline_for_stack void free_page_list(struct list_head *free_pages)
-{
-	struct pagevec freed_pvec;
-	struct page *page, *tmp;
-
-	pagevec_init(&freed_pvec, 1);
-
-	list_for_each_entry_safe(page, tmp, free_pages, lru) {
-		list_del(&page->lru);
-		if (!pagevec_add(&freed_pvec, page)) {
-			__pagevec_free(&freed_pvec);
-			pagevec_reinit(&freed_pvec);
-		}
-	}
-
-	pagevec_free(&freed_pvec);
-}
-
 /*
  * shrink_page_list() returns the number of reclaimed pages
  */
@@ -1009,7 +997,7 @@ keep_lumpy:
 	if (nr_dirty && nr_dirty == nr_congested && scanning_global_lru(sc))
 		zone_set_flag(zone, ZONE_CONGESTED);
 
-	free_page_list(&free_pages);
+	free_hot_cold_page_list(&free_pages, 1);
 
 	list_splice(&ret_pages, page_list);
 	count_vm_events(PGACTIVATE, pgactivate);
@@ -1178,14 +1166,14 @@ static unsigned long isolate_lru_pages(unsigned long nr_to_scan,
 			 * anon page which don't already have a swap slot is
 			 * pointless.
 			 */
-			if (nr_swap_pages <= 0 && PageAnon(cursor_page) &&
+			if (nr_swap_pages <= 0 && PageSwapBacked(cursor_page) &&
 			    !PageSwapCache(cursor_page))
 				break;
 
 			if (__isolate_lru_page(cursor_page, mode, file) == 0) {
 				list_move(&cursor_page->lru, dst);
 				mem_cgroup_del_lru(cursor_page);
-				nr_taken += hpage_nr_pages(page);
+				nr_taken += hpage_nr_pages(cursor_page);
 				nr_lumpy_taken++;
 				if (PageDirty(cursor_page))
 					nr_lumpy_dirty++;
@@ -2012,8 +2000,9 @@ static inline bool should_continue_reclaim(struct zone *zone,
 	 * inactive lists are large enough, continue reclaiming
 	 */
 	pages_for_compaction = (2UL << sc->order);
-	inactive_lru_pages = zone_nr_lru_pages(zone, sc, LRU_INACTIVE_ANON) +
-				zone_nr_lru_pages(zone, sc, LRU_INACTIVE_FILE);
+	inactive_lru_pages = zone_nr_lru_pages(zone, sc, LRU_INACTIVE_FILE);
+	if (nr_swap_pages > 0)
+		inactive_lru_pages += zone_nr_lru_pages(zone, sc, LRU_INACTIVE_ANON);
 	if (sc->nr_reclaimed < pages_for_compaction &&
 			inactive_lru_pages > pages_for_compaction)
 		return true;
@@ -3448,9 +3437,10 @@ void scan_mapping_unevictable_pages(struct address_space *mapping)
 static void warn_scan_unevictable_pages(void)
 {
 	printk_once(KERN_WARNING
-		    "The scan_unevictable_pages sysctl/node-interface has been "
+		    "%s: The scan_unevictable_pages sysctl/node-interface has been "
 		    "disabled for lack of a legitimate use case.  If you have "
-		    "one, please send an email to linux-mm@kvack.org.\n");
+		    "one, please send an email to linux-mm@kvack.org.\n",
+		    current->comm);
 }
 
 /*
diff --git a/net/9p/client.c b/net/9p/client.c
index 854ca7a911c4..776618cd2be5 100644
--- a/net/9p/client.c
+++ b/net/9p/client.c
@@ -23,6 +23,8 @@
  *
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/module.h>
 #include <linux/errno.h>
 #include <linux/fs.h>
@@ -81,15 +83,15 @@ static int get_protocol_version(char *s)
 
 	if (!strcmp(s, "9p2000")) {
 		version = p9_proto_legacy;
-		P9_DPRINTK(P9_DEBUG_9P, "Protocol version: Legacy\n");
+		p9_debug(P9_DEBUG_9P, "Protocol version: Legacy\n");
 	} else if (!strcmp(s, "9p2000.u")) {
 		version = p9_proto_2000u;
-		P9_DPRINTK(P9_DEBUG_9P, "Protocol version: 9P2000.u\n");
+		p9_debug(P9_DEBUG_9P, "Protocol version: 9P2000.u\n");
 	} else if (!strcmp(s, "9p2000.L")) {
 		version = p9_proto_2000L;
-		P9_DPRINTK(P9_DEBUG_9P, "Protocol version: 9P2000.L\n");
+		p9_debug(P9_DEBUG_9P, "Protocol version: 9P2000.L\n");
 	} else
-		printk(KERN_INFO "9p: Unknown protocol version %s.\n", s);
+		pr_info("Unknown protocol version %s\n", s);
 
 	return version;
 }
@@ -119,8 +121,8 @@ static int parse_opts(char *opts, struct p9_client *clnt)
 
 	tmp_options = kstrdup(opts, GFP_KERNEL);
 	if (!tmp_options) {
-		P9_DPRINTK(P9_DEBUG_ERROR,
-				"failed to allocate copy of option string\n");
+		p9_debug(P9_DEBUG_ERROR,
+			 "failed to allocate copy of option string\n");
 		return -ENOMEM;
 	}
 	options = tmp_options;
@@ -134,8 +136,8 @@ static int parse_opts(char *opts, struct p9_client *clnt)
 		case Opt_msize:
 			r = match_int(&args[0], &option);
 			if (r < 0) {
-				P9_DPRINTK(P9_DEBUG_ERROR,
-					   "integer field, but no integer?\n");
+				p9_debug(P9_DEBUG_ERROR,
+					 "integer field, but no integer?\n");
 				ret = r;
 				continue;
 			}
@@ -145,15 +147,14 @@ static int parse_opts(char *opts, struct p9_client *clnt)
 			s = match_strdup(&args[0]);
 			if (!s) {
 				ret = -ENOMEM;
-				P9_DPRINTK(P9_DEBUG_ERROR,
-					"problem allocating copy of trans arg\n");
+				p9_debug(P9_DEBUG_ERROR,
+					 "problem allocating copy of trans arg\n");
 				goto free_and_return;
 			 }
 			clnt->trans_mod = v9fs_get_trans_by_name(s);
 			if (clnt->trans_mod == NULL) {
-				printk(KERN_INFO
-					"9p: Could not find "
-					"request transport: %s\n", s);
+				pr_info("Could not find request transport: %s\n",
+					s);
 				ret = -EINVAL;
 				kfree(s);
 				goto free_and_return;
@@ -167,8 +168,8 @@ static int parse_opts(char *opts, struct p9_client *clnt)
 			s = match_strdup(&args[0]);
 			if (!s) {
 				ret = -ENOMEM;
-				P9_DPRINTK(P9_DEBUG_ERROR,
-					"problem allocating copy of version arg\n");
+				p9_debug(P9_DEBUG_ERROR,
+					 "problem allocating copy of version arg\n");
 				goto free_and_return;
 			}
 			ret = get_protocol_version(s);
@@ -225,7 +226,7 @@ p9_tag_alloc(struct p9_client *c, u16 tag, unsigned int max_size)
 					sizeof(struct p9_req_t), GFP_ATOMIC);
 
 			if (!c->reqs[row]) {
-				printk(KERN_ERR "Couldn't grow tag array\n");
+				pr_err("Couldn't grow tag array\n");
 				spin_unlock_irqrestore(&c->lock, flags);
 				return ERR_PTR(-ENOMEM);
 			}
@@ -244,7 +245,7 @@ p9_tag_alloc(struct p9_client *c, u16 tag, unsigned int max_size)
 	if (!req->tc) {
 		req->wq = kmalloc(sizeof(wait_queue_head_t), GFP_NOFS);
 		if (!req->wq) {
-			printk(KERN_ERR "Couldn't grow tag array\n");
+			pr_err("Couldn't grow tag array\n");
 			return ERR_PTR(-ENOMEM);
 		}
 		init_waitqueue_head(req->wq);
@@ -253,7 +254,7 @@ p9_tag_alloc(struct p9_client *c, u16 tag, unsigned int max_size)
 		req->rc = kmalloc(sizeof(struct p9_fcall) + alloc_msize,
 				  GFP_NOFS);
 		if ((!req->tc) || (!req->rc)) {
-			printk(KERN_ERR "Couldn't grow tag array\n");
+			pr_err("Couldn't grow tag array\n");
 			kfree(req->tc);
 			kfree(req->rc);
 			kfree(req->wq);
@@ -343,9 +344,9 @@ static void p9_tag_cleanup(struct p9_client *c)
 	for (row = 0; row < (c->max_tag/P9_ROW_MAXTAG); row++) {
 		for (col = 0; col < P9_ROW_MAXTAG; col++) {
 			if (c->reqs[row][col].status != REQ_STATUS_IDLE) {
-				P9_DPRINTK(P9_DEBUG_MUX,
-				  "Attempting to cleanup non-free tag %d,%d\n",
-				  row, col);
+				p9_debug(P9_DEBUG_MUX,
+					 "Attempting to cleanup non-free tag %d,%d\n",
+					 row, col);
 				/* TODO: delay execution of cleanup */
 				return;
 			}
@@ -379,7 +380,7 @@ static void p9_tag_cleanup(struct p9_client *c)
 static void p9_free_req(struct p9_client *c, struct p9_req_t *r)
 {
 	int tag = r->tc->tag;
-	P9_DPRINTK(P9_DEBUG_MUX, "clnt %p req %p tag: %d\n", c, r, tag);
+	p9_debug(P9_DEBUG_MUX, "clnt %p req %p tag: %d\n", c, r, tag);
 
 	r->status = REQ_STATUS_IDLE;
 	if (tag != P9_NOTAG && p9_idpool_check(tag, c->tagpool))
@@ -394,9 +395,9 @@ static void p9_free_req(struct p9_client *c, struct p9_req_t *r)
  */
 void p9_client_cb(struct p9_client *c, struct p9_req_t *req)
 {
-	P9_DPRINTK(P9_DEBUG_MUX, " tag %d\n", req->tc->tag);
+	p9_debug(P9_DEBUG_MUX, " tag %d\n", req->tc->tag);
 	wake_up(req->wq);
-	P9_DPRINTK(P9_DEBUG_MUX, "wakeup: %d\n", req->tc->tag);
+	p9_debug(P9_DEBUG_MUX, "wakeup: %d\n", req->tc->tag);
 }
 EXPORT_SYMBOL(p9_client_cb);
 
@@ -431,8 +432,8 @@ p9_parse_header(struct p9_fcall *pdu, int32_t *size, int8_t *type, int16_t *tag,
 	pdu->id = r_type;
 	pdu->tag = r_tag;
 
-	P9_DPRINTK(P9_DEBUG_9P, "<<< size=%d type: %d tag: %d\n", pdu->size,
-							pdu->id, pdu->tag);
+	p9_debug(P9_DEBUG_9P, "<<< size=%d type: %d tag: %d\n",
+		 pdu->size, pdu->id, pdu->tag);
 
 	if (type)
 		*type = r_type;
@@ -473,7 +474,7 @@ static int p9_check_errors(struct p9_client *c, struct p9_req_t *req)
 	 */
 	trace_9p_protocol_dump(c, req->rc);
 	if (err) {
-		P9_DPRINTK(P9_DEBUG_ERROR, "couldn't parse header %d\n", err);
+		p9_debug(P9_DEBUG_ERROR, "couldn't parse header %d\n", err);
 		return err;
 	}
 	if (type != P9_RERROR && type != P9_RLERROR)
@@ -492,21 +493,21 @@ static int p9_check_errors(struct p9_client *c, struct p9_req_t *req)
 		if (!err || !IS_ERR_VALUE(err)) {
 			err = p9_errstr2errno(ename, strlen(ename));
 
-			P9_DPRINTK(P9_DEBUG_9P, "<<< RERROR (%d) %s\n",
-				   -ecode, ename);
+			p9_debug(P9_DEBUG_9P, "<<< RERROR (%d) %s\n",
+				 -ecode, ename);
 		}
 		kfree(ename);
 	} else {
 		err = p9pdu_readf(req->rc, c->proto_version, "d", &ecode);
 		err = -ecode;
 
-		P9_DPRINTK(P9_DEBUG_9P, "<<< RLERROR (%d)\n", -ecode);
+		p9_debug(P9_DEBUG_9P, "<<< RLERROR (%d)\n", -ecode);
 	}
 
 	return err;
 
 out_err:
-	P9_DPRINTK(P9_DEBUG_ERROR, "couldn't parse error%d\n", err);
+	p9_debug(P9_DEBUG_ERROR, "couldn't parse error%d\n", err);
 
 	return err;
 }
@@ -538,7 +539,7 @@ static int p9_check_zc_errors(struct p9_client *c, struct p9_req_t *req,
 	 */
 	trace_9p_protocol_dump(c, req->rc);
 	if (err) {
-		P9_DPRINTK(P9_DEBUG_ERROR, "couldn't parse header %d\n", err);
+		p9_debug(P9_DEBUG_ERROR, "couldn't parse header %d\n", err);
 		return err;
 	}
 
@@ -601,22 +602,22 @@ static int p9_check_zc_errors(struct p9_client *c, struct p9_req_t *req,
 		if (!err || !IS_ERR_VALUE(err)) {
 			err = p9_errstr2errno(ename, strlen(ename));
 
-			P9_DPRINTK(P9_DEBUG_9P, "<<< RERROR (%d) %s\n",
-				   -ecode, ename);
+			p9_debug(P9_DEBUG_9P, "<<< RERROR (%d) %s\n",
+				 -ecode, ename);
 		}
 		kfree(ename);
 	} else {
 		err = p9pdu_readf(req->rc, c->proto_version, "d", &ecode);
 		err = -ecode;
 
-		P9_DPRINTK(P9_DEBUG_9P, "<<< RLERROR (%d)\n", -ecode);
+		p9_debug(P9_DEBUG_9P, "<<< RLERROR (%d)\n", -ecode);
 	}
 	return err;
 
 out_free:
 	kfree(ename);
 out_err:
-	P9_DPRINTK(P9_DEBUG_ERROR, "couldn't parse error%d\n", err);
+	p9_debug(P9_DEBUG_ERROR, "couldn't parse error%d\n", err);
 	return err;
 }
 
@@ -645,7 +646,7 @@ static int p9_client_flush(struct p9_client *c, struct p9_req_t *oldreq)
 	if (err)
 		return err;
 
-	P9_DPRINTK(P9_DEBUG_9P, ">>> TFLUSH tag %d\n", oldtag);
+	p9_debug(P9_DEBUG_9P, ">>> TFLUSH tag %d\n", oldtag);
 
 	req = p9_client_rpc(c, P9_TFLUSH, "w", oldtag);
 	if (IS_ERR(req))
@@ -670,7 +671,7 @@ static struct p9_req_t *p9_client_prepare_req(struct p9_client *c,
 	int tag, err;
 	struct p9_req_t *req;
 
-	P9_DPRINTK(P9_DEBUG_MUX, "client %p op %d\n", c, type);
+	p9_debug(P9_DEBUG_MUX, "client %p op %d\n", c, type);
 
 	/* we allow for any status other than disconnected */
 	if (c->status == Disconnected)
@@ -744,11 +745,11 @@ p9_client_rpc(struct p9_client *c, int8_t type, const char *fmt, ...)
 				       req->status >= REQ_STATUS_RCVD);
 
 	if (req->status == REQ_STATUS_ERROR) {
-		P9_DPRINTK(P9_DEBUG_ERROR, "req_status error %d\n", req->t_err);
+		p9_debug(P9_DEBUG_ERROR, "req_status error %d\n", req->t_err);
 		err = req->t_err;
 	}
 	if ((err == -ERESTARTSYS) && (c->status == Connected)) {
-		P9_DPRINTK(P9_DEBUG_MUX, "flushing\n");
+		p9_debug(P9_DEBUG_MUX, "flushing\n");
 		sigpending = 1;
 		clear_thread_flag(TIF_SIGPENDING);
 
@@ -827,11 +828,11 @@ static struct p9_req_t *p9_client_zc_rpc(struct p9_client *c, int8_t type,
 		goto reterr;
 	}
 	if (req->status == REQ_STATUS_ERROR) {
-		P9_DPRINTK(P9_DEBUG_ERROR, "req_status error %d\n", req->t_err);
+		p9_debug(P9_DEBUG_ERROR, "req_status error %d\n", req->t_err);
 		err = req->t_err;
 	}
 	if ((err == -ERESTARTSYS) && (c->status == Connected)) {
-		P9_DPRINTK(P9_DEBUG_MUX, "flushing\n");
+		p9_debug(P9_DEBUG_MUX, "flushing\n");
 		sigpending = 1;
 		clear_thread_flag(TIF_SIGPENDING);
 
@@ -865,7 +866,7 @@ static struct p9_fid *p9_fid_create(struct p9_client *clnt)
 	struct p9_fid *fid;
 	unsigned long flags;
 
-	P9_DPRINTK(P9_DEBUG_FID, "clnt %p\n", clnt);
+	p9_debug(P9_DEBUG_FID, "clnt %p\n", clnt);
 	fid = kmalloc(sizeof(struct p9_fid), GFP_KERNEL);
 	if (!fid)
 		return ERR_PTR(-ENOMEM);
@@ -898,7 +899,7 @@ static void p9_fid_destroy(struct p9_fid *fid)
 	struct p9_client *clnt;
 	unsigned long flags;
 
-	P9_DPRINTK(P9_DEBUG_FID, "fid %d\n", fid->fid);
+	p9_debug(P9_DEBUG_FID, "fid %d\n", fid->fid);
 	clnt = fid->clnt;
 	p9_idpool_put(fid->fid, clnt->fidpool);
 	spin_lock_irqsave(&clnt->lock, flags);
@@ -915,8 +916,8 @@ static int p9_client_version(struct p9_client *c)
 	char *version;
 	int msize;
 
-	P9_DPRINTK(P9_DEBUG_9P, ">>> TVERSION msize %d protocol %d\n",
-						c->msize, c->proto_version);
+	p9_debug(P9_DEBUG_9P, ">>> TVERSION msize %d protocol %d\n",
+		 c->msize, c->proto_version);
 
 	switch (c->proto_version) {
 	case p9_proto_2000L:
@@ -941,12 +942,12 @@ static int p9_client_version(struct p9_client *c)
 
 	err = p9pdu_readf(req->rc, c->proto_version, "ds", &msize, &version);
 	if (err) {
-		P9_DPRINTK(P9_DEBUG_9P, "version error %d\n", err);
+		p9_debug(P9_DEBUG_9P, "version error %d\n", err);
 		trace_9p_protocol_dump(c, req->rc);
 		goto error;
 	}
 
-	P9_DPRINTK(P9_DEBUG_9P, "<<< RVERSION msize %d %s\n", msize, version);
+	p9_debug(P9_DEBUG_9P, "<<< RVERSION msize %d %s\n", msize, version);
 	if (!strncmp(version, "9P2000.L", 8))
 		c->proto_version = p9_proto_2000L;
 	else if (!strncmp(version, "9P2000.u", 8))
@@ -996,8 +997,8 @@ struct p9_client *p9_client_create(const char *dev_name, char *options)
 
 	if (clnt->trans_mod == NULL) {
 		err = -EPROTONOSUPPORT;
-		P9_DPRINTK(P9_DEBUG_ERROR,
-				"No transport defined or default transport\n");
+		p9_debug(P9_DEBUG_ERROR,
+			 "No transport defined or default transport\n");
 		goto destroy_tagpool;
 	}
 
@@ -1007,8 +1008,8 @@ struct p9_client *p9_client_create(const char *dev_name, char *options)
 		goto put_trans;
 	}
 
-	P9_DPRINTK(P9_DEBUG_MUX, "clnt %p trans %p msize %d protocol %d\n",
-		clnt, clnt->trans_mod, clnt->msize, clnt->proto_version);
+	p9_debug(P9_DEBUG_MUX, "clnt %p trans %p msize %d protocol %d\n",
+		 clnt, clnt->trans_mod, clnt->msize, clnt->proto_version);
 
 	err = clnt->trans_mod->create(clnt, dev_name, options);
 	if (err)
@@ -1041,7 +1042,7 @@ void p9_client_destroy(struct p9_client *clnt)
 {
 	struct p9_fid *fid, *fidptr;
 
-	P9_DPRINTK(P9_DEBUG_MUX, "clnt %p\n", clnt);
+	p9_debug(P9_DEBUG_MUX, "clnt %p\n", clnt);
 
 	if (clnt->trans_mod)
 		clnt->trans_mod->close(clnt);
@@ -1049,7 +1050,7 @@ void p9_client_destroy(struct p9_client *clnt)
 	v9fs_put_trans(clnt->trans_mod);
 
 	list_for_each_entry_safe(fid, fidptr, &clnt->fidlist, flist) {
-		printk(KERN_INFO "Found fid %d not clunked\n", fid->fid);
+		pr_info("Found fid %d not clunked\n", fid->fid);
 		p9_fid_destroy(fid);
 	}
 
@@ -1064,14 +1065,14 @@ EXPORT_SYMBOL(p9_client_destroy);
 
 void p9_client_disconnect(struct p9_client *clnt)
 {
-	P9_DPRINTK(P9_DEBUG_9P, "clnt %p\n", clnt);
+	p9_debug(P9_DEBUG_9P, "clnt %p\n", clnt);
 	clnt->status = Disconnected;
 }
 EXPORT_SYMBOL(p9_client_disconnect);
 
 void p9_client_begin_disconnect(struct p9_client *clnt)
 {
-	P9_DPRINTK(P9_DEBUG_9P, "clnt %p\n", clnt);
+	p9_debug(P9_DEBUG_9P, "clnt %p\n", clnt);
 	clnt->status = BeginDisconnect;
 }
 EXPORT_SYMBOL(p9_client_begin_disconnect);
@@ -1085,8 +1086,8 @@ struct p9_fid *p9_client_attach(struct p9_client *clnt, struct p9_fid *afid,
 	struct p9_qid qid;
 
 
-	P9_DPRINTK(P9_DEBUG_9P, ">>> TATTACH afid %d uname %s aname %s\n",
-		   afid ? afid->fid : -1, uname, aname);
+	p9_debug(P9_DEBUG_9P, ">>> TATTACH afid %d uname %s aname %s\n",
+		 afid ? afid->fid : -1, uname, aname);
 	fid = p9_fid_create(clnt);
 	if (IS_ERR(fid)) {
 		err = PTR_ERR(fid);
@@ -1108,10 +1109,8 @@ struct p9_fid *p9_client_attach(struct p9_client *clnt, struct p9_fid *afid,
 		goto error;
 	}
 
-	P9_DPRINTK(P9_DEBUG_9P, "<<< RATTACH qid %x.%llx.%x\n",
-					qid.type,
-					(unsigned long long)qid.path,
-					qid.version);
+	p9_debug(P9_DEBUG_9P, "<<< RATTACH qid %x.%llx.%x\n",
+		 qid.type, (unsigned long long)qid.path, qid.version);
 
 	memmove(&fid->qid, &qid, sizeof(struct p9_qid));
 
@@ -1151,8 +1150,8 @@ struct p9_fid *p9_client_walk(struct p9_fid *oldfid, uint16_t nwname,
 		fid = oldfid;
 
 
-	P9_DPRINTK(P9_DEBUG_9P, ">>> TWALK fids %d,%d nwname %ud wname[0] %s\n",
-		oldfid->fid, fid->fid, nwname, wnames ? wnames[0] : NULL);
+	p9_debug(P9_DEBUG_9P, ">>> TWALK fids %d,%d nwname %ud wname[0] %s\n",
+		 oldfid->fid, fid->fid, nwname, wnames ? wnames[0] : NULL);
 
 	req = p9_client_rpc(clnt, P9_TWALK, "ddT", oldfid->fid, fid->fid,
 								nwname, wnames);
@@ -1169,7 +1168,7 @@ struct p9_fid *p9_client_walk(struct p9_fid *oldfid, uint16_t nwname,
 	}
 	p9_free_req(clnt, req);
 
-	P9_DPRINTK(P9_DEBUG_9P, "<<< RWALK nwqid %d:\n", nwqids);
+	p9_debug(P9_DEBUG_9P, "<<< RWALK nwqid %d:\n", nwqids);
 
 	if (nwqids != nwname) {
 		err = -ENOENT;
@@ -1177,7 +1176,7 @@ struct p9_fid *p9_client_walk(struct p9_fid *oldfid, uint16_t nwname,
 	}
 
 	for (count = 0; count < nwqids; count++)
-		P9_DPRINTK(P9_DEBUG_9P, "<<<     [%d] %x.%llx.%x\n",
+		p9_debug(P9_DEBUG_9P, "<<<     [%d] %x.%llx.%x\n",
 			count, wqids[count].type,
 			(unsigned long long)wqids[count].path,
 			wqids[count].version);
@@ -1212,7 +1211,7 @@ int p9_client_open(struct p9_fid *fid, int mode)
 	int iounit;
 
 	clnt = fid->clnt;
-	P9_DPRINTK(P9_DEBUG_9P, ">>> %s fid %d mode %d\n",
+	p9_debug(P9_DEBUG_9P, ">>> %s fid %d mode %d\n",
 		p9_is_proto_dotl(clnt) ? "TLOPEN" : "TOPEN", fid->fid, mode);
 	err = 0;
 
@@ -1234,7 +1233,7 @@ int p9_client_open(struct p9_fid *fid, int mode)
 		goto free_and_error;
 	}
 
-	P9_DPRINTK(P9_DEBUG_9P, "<<< %s qid %x.%llx.%x iounit %x\n",
+	p9_debug(P9_DEBUG_9P, "<<< %s qid %x.%llx.%x iounit %x\n",
 		p9_is_proto_dotl(clnt) ? "RLOPEN" : "ROPEN",  qid.type,
 		(unsigned long long)qid.path, qid.version, iounit);
 
@@ -1256,7 +1255,7 @@ int p9_client_create_dotl(struct p9_fid *ofid, char *name, u32 flags, u32 mode,
 	struct p9_req_t *req;
 	int iounit;
 
-	P9_DPRINTK(P9_DEBUG_9P,
+	p9_debug(P9_DEBUG_9P,
 			">>> TLCREATE fid %d name %s flags %d mode %d gid %d\n",
 			ofid->fid, name, flags, mode, gid);
 	clnt = ofid->clnt;
@@ -1277,7 +1276,7 @@ int p9_client_create_dotl(struct p9_fid *ofid, char *name, u32 flags, u32 mode,
 		goto free_and_error;
 	}
 
-	P9_DPRINTK(P9_DEBUG_9P, "<<< RLCREATE qid %x.%llx.%x iounit %x\n",
+	p9_debug(P9_DEBUG_9P, "<<< RLCREATE qid %x.%llx.%x iounit %x\n",
 			qid->type,
 			(unsigned long long)qid->path,
 			qid->version, iounit);
@@ -1301,7 +1300,7 @@ int p9_client_fcreate(struct p9_fid *fid, char *name, u32 perm, int mode,
 	struct p9_qid qid;
 	int iounit;
 
-	P9_DPRINTK(P9_DEBUG_9P, ">>> TCREATE fid %d name %s perm %d mode %d\n",
+	p9_debug(P9_DEBUG_9P, ">>> TCREATE fid %d name %s perm %d mode %d\n",
 						fid->fid, name, perm, mode);
 	err = 0;
 	clnt = fid->clnt;
@@ -1322,7 +1321,7 @@ int p9_client_fcreate(struct p9_fid *fid, char *name, u32 perm, int mode,
 		goto free_and_error;
 	}
 
-	P9_DPRINTK(P9_DEBUG_9P, "<<< RCREATE qid %x.%llx.%x iounit %x\n",
+	p9_debug(P9_DEBUG_9P, "<<< RCREATE qid %x.%llx.%x iounit %x\n",
 				qid.type,
 				(unsigned long long)qid.path,
 				qid.version, iounit);
@@ -1344,7 +1343,7 @@ int p9_client_symlink(struct p9_fid *dfid, char *name, char *symtgt, gid_t gid,
 	struct p9_client *clnt;
 	struct p9_req_t *req;
 
-	P9_DPRINTK(P9_DEBUG_9P, ">>> TSYMLINK dfid %d name %s  symtgt %s\n",
+	p9_debug(P9_DEBUG_9P, ">>> TSYMLINK dfid %d name %s  symtgt %s\n",
 			dfid->fid, name, symtgt);
 	clnt = dfid->clnt;
 
@@ -1361,7 +1360,7 @@ int p9_client_symlink(struct p9_fid *dfid, char *name, char *symtgt, gid_t gid,
 		goto free_and_error;
 	}
 
-	P9_DPRINTK(P9_DEBUG_9P, "<<< RSYMLINK qid %x.%llx.%x\n",
+	p9_debug(P9_DEBUG_9P, "<<< RSYMLINK qid %x.%llx.%x\n",
 			qid->type, (unsigned long long)qid->path, qid->version);
 
 free_and_error:
@@ -1376,7 +1375,7 @@ int p9_client_link(struct p9_fid *dfid, struct p9_fid *oldfid, char *newname)
 	struct p9_client *clnt;
 	struct p9_req_t *req;
 
-	P9_DPRINTK(P9_DEBUG_9P, ">>> TLINK dfid %d oldfid %d newname %s\n",
+	p9_debug(P9_DEBUG_9P, ">>> TLINK dfid %d oldfid %d newname %s\n",
 			dfid->fid, oldfid->fid, newname);
 	clnt = dfid->clnt;
 	req = p9_client_rpc(clnt, P9_TLINK, "dds", dfid->fid, oldfid->fid,
@@ -1384,7 +1383,7 @@ int p9_client_link(struct p9_fid *dfid, struct p9_fid *oldfid, char *newname)
 	if (IS_ERR(req))
 		return PTR_ERR(req);
 
-	P9_DPRINTK(P9_DEBUG_9P, "<<< RLINK\n");
+	p9_debug(P9_DEBUG_9P, "<<< RLINK\n");
 	p9_free_req(clnt, req);
 	return 0;
 }
@@ -1396,7 +1395,7 @@ int p9_client_fsync(struct p9_fid *fid, int datasync)
 	struct p9_client *clnt;
 	struct p9_req_t *req;
 
-	P9_DPRINTK(P9_DEBUG_9P, ">>> TFSYNC fid %d datasync:%d\n",
+	p9_debug(P9_DEBUG_9P, ">>> TFSYNC fid %d datasync:%d\n",
 			fid->fid, datasync);
 	err = 0;
 	clnt = fid->clnt;
@@ -1407,7 +1406,7 @@ int p9_client_fsync(struct p9_fid *fid, int datasync)
 		goto error;
 	}
 
-	P9_DPRINTK(P9_DEBUG_9P, "<<< RFSYNC fid %d\n", fid->fid);
+	p9_debug(P9_DEBUG_9P, "<<< RFSYNC fid %d\n", fid->fid);
 
 	p9_free_req(clnt, req);
 
@@ -1423,12 +1422,13 @@ int p9_client_clunk(struct p9_fid *fid)
 	struct p9_req_t *req;
 
 	if (!fid) {
-		P9_EPRINTK(KERN_WARNING, "Trying to clunk with NULL fid\n");
+		pr_warn("%s (%d): Trying to clunk with NULL fid\n",
+			__func__, task_pid_nr(current));
 		dump_stack();
 		return 0;
 	}
 
-	P9_DPRINTK(P9_DEBUG_9P, ">>> TCLUNK fid %d\n", fid->fid);
+	p9_debug(P9_DEBUG_9P, ">>> TCLUNK fid %d\n", fid->fid);
 	err = 0;
 	clnt = fid->clnt;
 
@@ -1438,7 +1438,7 @@ int p9_client_clunk(struct p9_fid *fid)
 		goto error;
 	}
 
-	P9_DPRINTK(P9_DEBUG_9P, "<<< RCLUNK fid %d\n", fid->fid);
+	p9_debug(P9_DEBUG_9P, "<<< RCLUNK fid %d\n", fid->fid);
 
 	p9_free_req(clnt, req);
 error:
@@ -1456,7 +1456,7 @@ int p9_client_remove(struct p9_fid *fid)
 	struct p9_client *clnt;
 	struct p9_req_t *req;
 
-	P9_DPRINTK(P9_DEBUG_9P, ">>> TREMOVE fid %d\n", fid->fid);
+	p9_debug(P9_DEBUG_9P, ">>> TREMOVE fid %d\n", fid->fid);
 	err = 0;
 	clnt = fid->clnt;
 
@@ -1466,7 +1466,7 @@ int p9_client_remove(struct p9_fid *fid)
 		goto error;
 	}
 
-	P9_DPRINTK(P9_DEBUG_9P, "<<< RREMOVE fid %d\n", fid->fid);
+	p9_debug(P9_DEBUG_9P, "<<< RREMOVE fid %d\n", fid->fid);
 
 	p9_free_req(clnt, req);
 error:
@@ -1481,7 +1481,7 @@ int p9_client_unlinkat(struct p9_fid *dfid, const char *name, int flags)
 	struct p9_req_t *req;
 	struct p9_client *clnt;
 
-	P9_DPRINTK(P9_DEBUG_9P, ">>> TUNLINKAT fid %d %s %d\n",
+	p9_debug(P9_DEBUG_9P, ">>> TUNLINKAT fid %d %s %d\n",
 		   dfid->fid, name, flags);
 
 	clnt = dfid->clnt;
@@ -1490,7 +1490,7 @@ int p9_client_unlinkat(struct p9_fid *dfid, const char *name, int flags)
 		err = PTR_ERR(req);
 		goto error;
 	}
-	P9_DPRINTK(P9_DEBUG_9P, "<<< RUNLINKAT fid %d %s\n", dfid->fid, name);
+	p9_debug(P9_DEBUG_9P, "<<< RUNLINKAT fid %d %s\n", dfid->fid, name);
 
 	p9_free_req(clnt, req);
 error:
@@ -1509,7 +1509,7 @@ p9_client_read(struct p9_fid *fid, char *data, char __user *udata, u64 offset,
 	int err, rsize, non_zc = 0;
 
 
-	P9_DPRINTK(P9_DEBUG_9P, ">>> TREAD fid %d offset %llu %d\n",
+	p9_debug(P9_DEBUG_9P, ">>> TREAD fid %d offset %llu %d\n",
 		   fid->fid, (long long unsigned) offset, count);
 	err = 0;
 	clnt = fid->clnt;
@@ -1552,7 +1552,7 @@ p9_client_read(struct p9_fid *fid, char *data, char __user *udata, u64 offset,
 		goto free_and_error;
 	}
 
-	P9_DPRINTK(P9_DEBUG_9P, "<<< RREAD count %d\n", count);
+	p9_debug(P9_DEBUG_9P, "<<< RREAD count %d\n", count);
 
 	if (non_zc) {
 		if (data) {
@@ -1584,7 +1584,7 @@ p9_client_write(struct p9_fid *fid, char *data, const char __user *udata,
 	struct p9_client *clnt;
 	struct p9_req_t *req;
 
-	P9_DPRINTK(P9_DEBUG_9P, ">>> TWRITE fid %d offset %llu count %d\n",
+	p9_debug(P9_DEBUG_9P, ">>> TWRITE fid %d offset %llu count %d\n",
 				fid->fid, (long long unsigned) offset, count);
 	err = 0;
 	clnt = fid->clnt;
@@ -1626,7 +1626,7 @@ p9_client_write(struct p9_fid *fid, char *data, const char __user *udata,
 		goto free_and_error;
 	}
 
-	P9_DPRINTK(P9_DEBUG_9P, "<<< RWRITE count %d\n", count);
+	p9_debug(P9_DEBUG_9P, "<<< RWRITE count %d\n", count);
 
 	p9_free_req(clnt, req);
 	return count;
@@ -1646,7 +1646,7 @@ struct p9_wstat *p9_client_stat(struct p9_fid *fid)
 	struct p9_req_t *req;
 	u16 ignored;
 
-	P9_DPRINTK(P9_DEBUG_9P, ">>> TSTAT fid %d\n", fid->fid);
+	p9_debug(P9_DEBUG_9P, ">>> TSTAT fid %d\n", fid->fid);
 
 	if (!ret)
 		return ERR_PTR(-ENOMEM);
@@ -1667,7 +1667,7 @@ struct p9_wstat *p9_client_stat(struct p9_fid *fid)
 		goto error;
 	}
 
-	P9_DPRINTK(P9_DEBUG_9P,
+	p9_debug(P9_DEBUG_9P,
 		"<<< RSTAT sz=%x type=%x dev=%x qid=%x.%llx.%x\n"
 		"<<<    mode=%8.8x atime=%8.8x mtime=%8.8x length=%llx\n"
 		"<<<    name=%s uid=%s gid=%s muid=%s extension=(%s)\n"
@@ -1696,7 +1696,7 @@ struct p9_stat_dotl *p9_client_getattr_dotl(struct p9_fid *fid,
 								GFP_KERNEL);
 	struct p9_req_t *req;
 
-	P9_DPRINTK(P9_DEBUG_9P, ">>> TGETATTR fid %d, request_mask %lld\n",
+	p9_debug(P9_DEBUG_9P, ">>> TGETATTR fid %d, request_mask %lld\n",
 							fid->fid, request_mask);
 
 	if (!ret)
@@ -1718,7 +1718,7 @@ struct p9_stat_dotl *p9_client_getattr_dotl(struct p9_fid *fid,
 		goto error;
 	}
 
-	P9_DPRINTK(P9_DEBUG_9P,
+	p9_debug(P9_DEBUG_9P,
 		"<<< RGETATTR st_result_mask=%lld\n"
 		"<<< qid=%x.%llx.%x\n"
 		"<<< st_mode=%8.8x st_nlink=%llu\n"
@@ -1784,8 +1784,8 @@ int p9_client_wstat(struct p9_fid *fid, struct p9_wstat *wst)
 	err = 0;
 	clnt = fid->clnt;
 	wst->size = p9_client_statsize(wst, clnt->proto_version);
-	P9_DPRINTK(P9_DEBUG_9P, ">>> TWSTAT fid %d\n", fid->fid);
-	P9_DPRINTK(P9_DEBUG_9P,
+	p9_debug(P9_DEBUG_9P, ">>> TWSTAT fid %d\n", fid->fid);
+	p9_debug(P9_DEBUG_9P,
 		"     sz=%x type=%x dev=%x qid=%x.%llx.%x\n"
 		"     mode=%8.8x atime=%8.8x mtime=%8.8x length=%llx\n"
 		"     name=%s uid=%s gid=%s muid=%s extension=(%s)\n"
@@ -1802,7 +1802,7 @@ int p9_client_wstat(struct p9_fid *fid, struct p9_wstat *wst)
 		goto error;
 	}
 
-	P9_DPRINTK(P9_DEBUG_9P, "<<< RWSTAT fid %d\n", fid->fid);
+	p9_debug(P9_DEBUG_9P, "<<< RWSTAT fid %d\n", fid->fid);
 
 	p9_free_req(clnt, req);
 error:
@@ -1818,8 +1818,8 @@ int p9_client_setattr(struct p9_fid *fid, struct p9_iattr_dotl *p9attr)
 
 	err = 0;
 	clnt = fid->clnt;
-	P9_DPRINTK(P9_DEBUG_9P, ">>> TSETATTR fid %d\n", fid->fid);
-	P9_DPRINTK(P9_DEBUG_9P,
+	p9_debug(P9_DEBUG_9P, ">>> TSETATTR fid %d\n", fid->fid);
+	p9_debug(P9_DEBUG_9P,
 		"    valid=%x mode=%x uid=%d gid=%d size=%lld\n"
 		"    atime_sec=%lld atime_nsec=%lld\n"
 		"    mtime_sec=%lld mtime_nsec=%lld\n",
@@ -1833,7 +1833,7 @@ int p9_client_setattr(struct p9_fid *fid, struct p9_iattr_dotl *p9attr)
 		err = PTR_ERR(req);
 		goto error;
 	}
-	P9_DPRINTK(P9_DEBUG_9P, "<<< RSETATTR fid %d\n", fid->fid);
+	p9_debug(P9_DEBUG_9P, "<<< RSETATTR fid %d\n", fid->fid);
 	p9_free_req(clnt, req);
 error:
 	return err;
@@ -1849,7 +1849,7 @@ int p9_client_statfs(struct p9_fid *fid, struct p9_rstatfs *sb)
 	err = 0;
 	clnt = fid->clnt;
 
-	P9_DPRINTK(P9_DEBUG_9P, ">>> TSTATFS fid %d\n", fid->fid);
+	p9_debug(P9_DEBUG_9P, ">>> TSTATFS fid %d\n", fid->fid);
 
 	req = p9_client_rpc(clnt, P9_TSTATFS, "d", fid->fid);
 	if (IS_ERR(req)) {
@@ -1866,7 +1866,7 @@ int p9_client_statfs(struct p9_fid *fid, struct p9_rstatfs *sb)
 		goto error;
 	}
 
-	P9_DPRINTK(P9_DEBUG_9P, "<<< RSTATFS fid %d type 0x%lx bsize %ld "
+	p9_debug(P9_DEBUG_9P, "<<< RSTATFS fid %d type 0x%lx bsize %ld "
 		"blocks %llu bfree %llu bavail %llu files %llu ffree %llu "
 		"fsid %llu namelen %ld\n",
 		fid->fid, (long unsigned int)sb->type, (long int)sb->bsize,
@@ -1889,7 +1889,7 @@ int p9_client_rename(struct p9_fid *fid,
 	err = 0;
 	clnt = fid->clnt;
 
-	P9_DPRINTK(P9_DEBUG_9P, ">>> TRENAME fid %d newdirfid %d name %s\n",
+	p9_debug(P9_DEBUG_9P, ">>> TRENAME fid %d newdirfid %d name %s\n",
 			fid->fid, newdirfid->fid, name);
 
 	req = p9_client_rpc(clnt, P9_TRENAME, "dds", fid->fid,
@@ -1899,7 +1899,7 @@ int p9_client_rename(struct p9_fid *fid,
 		goto error;
 	}
 
-	P9_DPRINTK(P9_DEBUG_9P, "<<< RRENAME fid %d\n", fid->fid);
+	p9_debug(P9_DEBUG_9P, "<<< RRENAME fid %d\n", fid->fid);
 
 	p9_free_req(clnt, req);
 error:
@@ -1917,7 +1917,7 @@ int p9_client_renameat(struct p9_fid *olddirfid, const char *old_name,
 	err = 0;
 	clnt = olddirfid->clnt;
 
-	P9_DPRINTK(P9_DEBUG_9P, ">>> TRENAMEAT olddirfid %d old name %s"
+	p9_debug(P9_DEBUG_9P, ">>> TRENAMEAT olddirfid %d old name %s"
 		   " newdirfid %d new name %s\n", olddirfid->fid, old_name,
 		   newdirfid->fid, new_name);
 
@@ -1928,7 +1928,7 @@ int p9_client_renameat(struct p9_fid *olddirfid, const char *old_name,
 		goto error;
 	}
 
-	P9_DPRINTK(P9_DEBUG_9P, "<<< RRENAMEAT newdirfid %d new name %s\n",
+	p9_debug(P9_DEBUG_9P, "<<< RRENAMEAT newdirfid %d new name %s\n",
 		   newdirfid->fid, new_name);
 
 	p9_free_req(clnt, req);
@@ -1956,7 +1956,7 @@ struct p9_fid *p9_client_xattrwalk(struct p9_fid *file_fid,
 		attr_fid = NULL;
 		goto error;
 	}
-	P9_DPRINTK(P9_DEBUG_9P,
+	p9_debug(P9_DEBUG_9P,
 		">>> TXATTRWALK file_fid %d, attr_fid %d name %s\n",
 		file_fid->fid, attr_fid->fid, attr_name);
 
@@ -1973,7 +1973,7 @@ struct p9_fid *p9_client_xattrwalk(struct p9_fid *file_fid,
 		goto clunk_fid;
 	}
 	p9_free_req(clnt, req);
-	P9_DPRINTK(P9_DEBUG_9P, "<<<  RXATTRWALK fid %d size %llu\n",
+	p9_debug(P9_DEBUG_9P, "<<<  RXATTRWALK fid %d size %llu\n",
 		attr_fid->fid, *attr_size);
 	return attr_fid;
 clunk_fid:
@@ -1994,7 +1994,7 @@ int p9_client_xattrcreate(struct p9_fid *fid, const char *name,
 	struct p9_req_t *req;
 	struct p9_client *clnt;
 
-	P9_DPRINTK(P9_DEBUG_9P,
+	p9_debug(P9_DEBUG_9P,
 		">>> TXATTRCREATE fid %d name  %s size %lld flag %d\n",
 		fid->fid, name, (long long)attr_size, flags);
 	err = 0;
@@ -2005,7 +2005,7 @@ int p9_client_xattrcreate(struct p9_fid *fid, const char *name,
 		err = PTR_ERR(req);
 		goto error;
 	}
-	P9_DPRINTK(P9_DEBUG_9P, "<<< RXATTRCREATE fid %d\n", fid->fid);
+	p9_debug(P9_DEBUG_9P, "<<< RXATTRCREATE fid %d\n", fid->fid);
 	p9_free_req(clnt, req);
 error:
 	return err;
@@ -2019,7 +2019,7 @@ int p9_client_readdir(struct p9_fid *fid, char *data, u32 count, u64 offset)
 	struct p9_req_t *req;
 	char *dataptr;
 
-	P9_DPRINTK(P9_DEBUG_9P, ">>> TREADDIR fid %d offset %llu count %d\n",
+	p9_debug(P9_DEBUG_9P, ">>> TREADDIR fid %d offset %llu count %d\n",
 				fid->fid, (long long unsigned) offset, count);
 
 	err = 0;
@@ -2056,7 +2056,7 @@ int p9_client_readdir(struct p9_fid *fid, char *data, u32 count, u64 offset)
 		goto free_and_error;
 	}
 
-	P9_DPRINTK(P9_DEBUG_9P, "<<< RREADDIR count %d\n", count);
+	p9_debug(P9_DEBUG_9P, "<<< RREADDIR count %d\n", count);
 
 	if (non_zc)
 		memmove(data, dataptr, count);
@@ -2080,7 +2080,7 @@ int p9_client_mknod_dotl(struct p9_fid *fid, char *name, int mode,
 
 	err = 0;
 	clnt = fid->clnt;
-	P9_DPRINTK(P9_DEBUG_9P, ">>> TMKNOD fid %d name %s mode %d major %d "
+	p9_debug(P9_DEBUG_9P, ">>> TMKNOD fid %d name %s mode %d major %d "
 		"minor %d\n", fid->fid, name, mode, MAJOR(rdev), MINOR(rdev));
 	req = p9_client_rpc(clnt, P9_TMKNOD, "dsdddd", fid->fid, name, mode,
 		MAJOR(rdev), MINOR(rdev), gid);
@@ -2092,7 +2092,7 @@ int p9_client_mknod_dotl(struct p9_fid *fid, char *name, int mode,
 		trace_9p_protocol_dump(clnt, req->rc);
 		goto error;
 	}
-	P9_DPRINTK(P9_DEBUG_9P, "<<< RMKNOD qid %x.%llx.%x\n", qid->type,
+	p9_debug(P9_DEBUG_9P, "<<< RMKNOD qid %x.%llx.%x\n", qid->type,
 				(unsigned long long)qid->path, qid->version);
 
 error:
@@ -2111,7 +2111,7 @@ int p9_client_mkdir_dotl(struct p9_fid *fid, char *name, int mode,
 
 	err = 0;
 	clnt = fid->clnt;
-	P9_DPRINTK(P9_DEBUG_9P, ">>> TMKDIR fid %d name %s mode %d gid %d\n",
+	p9_debug(P9_DEBUG_9P, ">>> TMKDIR fid %d name %s mode %d gid %d\n",
 		 fid->fid, name, mode, gid);
 	req = p9_client_rpc(clnt, P9_TMKDIR, "dsdd", fid->fid, name, mode,
 		gid);
@@ -2123,7 +2123,7 @@ int p9_client_mkdir_dotl(struct p9_fid *fid, char *name, int mode,
 		trace_9p_protocol_dump(clnt, req->rc);
 		goto error;
 	}
-	P9_DPRINTK(P9_DEBUG_9P, "<<< RMKDIR qid %x.%llx.%x\n", qid->type,
+	p9_debug(P9_DEBUG_9P, "<<< RMKDIR qid %x.%llx.%x\n", qid->type,
 				(unsigned long long)qid->path, qid->version);
 
 error:
@@ -2141,7 +2141,7 @@ int p9_client_lock_dotl(struct p9_fid *fid, struct p9_flock *flock, u8 *status)
 
 	err = 0;
 	clnt = fid->clnt;
-	P9_DPRINTK(P9_DEBUG_9P, ">>> TLOCK fid %d type %i flags %d "
+	p9_debug(P9_DEBUG_9P, ">>> TLOCK fid %d type %i flags %d "
 			"start %lld length %lld proc_id %d client_id %s\n",
 			fid->fid, flock->type, flock->flags, flock->start,
 			flock->length, flock->proc_id, flock->client_id);
@@ -2158,7 +2158,7 @@ int p9_client_lock_dotl(struct p9_fid *fid, struct p9_flock *flock, u8 *status)
 		trace_9p_protocol_dump(clnt, req->rc);
 		goto error;
 	}
-	P9_DPRINTK(P9_DEBUG_9P, "<<< RLOCK status %i\n", *status);
+	p9_debug(P9_DEBUG_9P, "<<< RLOCK status %i\n", *status);
 error:
 	p9_free_req(clnt, req);
 	return err;
@@ -2174,7 +2174,7 @@ int p9_client_getlock_dotl(struct p9_fid *fid, struct p9_getlock *glock)
 
 	err = 0;
 	clnt = fid->clnt;
-	P9_DPRINTK(P9_DEBUG_9P, ">>> TGETLOCK fid %d, type %i start %lld "
+	p9_debug(P9_DEBUG_9P, ">>> TGETLOCK fid %d, type %i start %lld "
 		"length %lld proc_id %d client_id %s\n", fid->fid, glock->type,
 		glock->start, glock->length, glock->proc_id, glock->client_id);
 
@@ -2191,7 +2191,7 @@ int p9_client_getlock_dotl(struct p9_fid *fid, struct p9_getlock *glock)
 		trace_9p_protocol_dump(clnt, req->rc);
 		goto error;
 	}
-	P9_DPRINTK(P9_DEBUG_9P, "<<< RGETLOCK type %i start %lld length %lld "
+	p9_debug(P9_DEBUG_9P, "<<< RGETLOCK type %i start %lld length %lld "
 		"proc_id %d client_id %s\n", glock->type, glock->start,
 		glock->length, glock->proc_id, glock->client_id);
 error:
@@ -2208,7 +2208,7 @@ int p9_client_readlink(struct p9_fid *fid, char **target)
 
 	err = 0;
 	clnt = fid->clnt;
-	P9_DPRINTK(P9_DEBUG_9P, ">>> TREADLINK fid %d\n", fid->fid);
+	p9_debug(P9_DEBUG_9P, ">>> TREADLINK fid %d\n", fid->fid);
 
 	req = p9_client_rpc(clnt, P9_TREADLINK, "d", fid->fid);
 	if (IS_ERR(req))
@@ -2219,7 +2219,7 @@ int p9_client_readlink(struct p9_fid *fid, char **target)
 		trace_9p_protocol_dump(clnt, req->rc);
 		goto error;
 	}
-	P9_DPRINTK(P9_DEBUG_9P, "<<< RREADLINK target %s\n", *target);
+	p9_debug(P9_DEBUG_9P, "<<< RREADLINK target %s\n", *target);
 error:
 	p9_free_req(clnt, req);
 	return err;
diff --git a/net/9p/error.c b/net/9p/error.c
index 52518512a93e..2ab2de76010f 100644
--- a/net/9p/error.c
+++ b/net/9p/error.c
@@ -27,6 +27,8 @@
  *
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/module.h>
 #include <linux/list.h>
 #include <linux/jhash.h>
@@ -237,8 +239,8 @@ int p9_errstr2errno(char *errstr, int len)
 	if (errno == 0) {
 		/* TODO: if error isn't found, add it dynamically */
 		errstr[len] = 0;
-		printk(KERN_ERR "%s: server reported unknown error %s\n",
-			__func__, errstr);
+		pr_err("%s: server reported unknown error %s\n",
+		       __func__, errstr);
 		errno = ESERVERFAULT;
 	}
 
diff --git a/net/9p/mod.c b/net/9p/mod.c
index 2664d1292291..6ab36aea7727 100644
--- a/net/9p/mod.c
+++ b/net/9p/mod.c
@@ -24,7 +24,11 @@
  *
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/sched.h>
 #include <linux/moduleparam.h>
 #include <net/9p/9p.h>
 #include <linux/fs.h>
@@ -39,6 +43,29 @@ unsigned int p9_debug_level = 0;	/* feature-rific global debug level  */
 EXPORT_SYMBOL(p9_debug_level);
 module_param_named(debug, p9_debug_level, uint, 0);
 MODULE_PARM_DESC(debug, "9P debugging level");
+
+void _p9_debug(enum p9_debug_flags level, const char *func,
+		const char *fmt, ...)
+{
+	struct va_format vaf;
+	va_list args;
+
+	if ((p9_debug_level & level) != level)
+		return;
+
+	va_start(args, fmt);
+
+	vaf.fmt = fmt;
+	vaf.va = &args;
+
+	if (level == P9_DEBUG_9P)
+		pr_notice("(%8.8d) %pV", task_pid_nr(current), &vaf);
+	else
+		pr_notice("-- %s (%d): %pV", func, task_pid_nr(current), &vaf);
+
+	va_end(args);
+}
+EXPORT_SYMBOL(_p9_debug);
 #endif
 
 /*
@@ -147,7 +174,7 @@ static int __init init_p9(void)
 	int ret = 0;
 
 	p9_error_init();
-	printk(KERN_INFO "Installing 9P2000 support\n");
+	pr_info("Installing 9P2000 support\n");
 	p9_trans_fd_init();
 
 	return ret;
@@ -160,7 +187,7 @@ static int __init init_p9(void)
 
 static void __exit exit_p9(void)
 {
-	printk(KERN_INFO "Unloading 9P2000 support\n");
+	pr_info("Unloading 9P2000 support\n");
 
 	p9_trans_fd_exit();
 }
diff --git a/net/9p/protocol.c b/net/9p/protocol.c
index 55e10a96c902..9ee48cb30179 100644
--- a/net/9p/protocol.c
+++ b/net/9p/protocol.c
@@ -534,7 +534,7 @@ int p9stat_read(struct p9_client *clnt, char *buf, int len, struct p9_wstat *st)
 
 	ret = p9pdu_readf(&fake_pdu, clnt->proto_version, "S", st);
 	if (ret) {
-		P9_DPRINTK(P9_DEBUG_9P, "<<< p9stat_read failed: %d\n", ret);
+		p9_debug(P9_DEBUG_9P, "<<< p9stat_read failed: %d\n", ret);
 		trace_9p_protocol_dump(clnt, &fake_pdu);
 	}
 
@@ -558,8 +558,8 @@ int p9pdu_finalize(struct p9_client *clnt, struct p9_fcall *pdu)
 	pdu->size = size;
 
 	trace_9p_protocol_dump(clnt, pdu);
-	P9_DPRINTK(P9_DEBUG_9P, ">>> size=%d type: %d tag: %d\n", pdu->size,
-							pdu->id, pdu->tag);
+	p9_debug(P9_DEBUG_9P, ">>> size=%d type: %d tag: %d\n",
+		 pdu->size, pdu->id, pdu->tag);
 
 	return err;
 }
@@ -585,7 +585,7 @@ int p9dirent_read(struct p9_client *clnt, char *buf, int len,
 	ret = p9pdu_readf(&fake_pdu, clnt->proto_version, "Qqbs", &dirent->qid,
 			  &dirent->d_off, &dirent->d_type, &nameptr);
 	if (ret) {
-		P9_DPRINTK(P9_DEBUG_9P, "<<< p9dirent_read failed: %d\n", ret);
+		p9_debug(P9_DEBUG_9P, "<<< p9dirent_read failed: %d\n", ret);
 		trace_9p_protocol_dump(clnt, &fake_pdu);
 		goto out;
 	}
diff --git a/net/9p/trans_fd.c b/net/9p/trans_fd.c
index fdfdb5747f63..fccae26fa674 100644
--- a/net/9p/trans_fd.c
+++ b/net/9p/trans_fd.c
@@ -25,6 +25,8 @@
  *
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/in.h>
 #include <linux/module.h>
 #include <linux/net.h>
@@ -191,7 +193,7 @@ static void p9_conn_cancel(struct p9_conn *m, int err)
 	unsigned long flags;
 	LIST_HEAD(cancel_list);
 
-	P9_DPRINTK(P9_DEBUG_ERROR, "mux %p err %d\n", m, err);
+	p9_debug(P9_DEBUG_ERROR, "mux %p err %d\n", m, err);
 
 	spin_lock_irqsave(&m->client->lock, flags);
 
@@ -217,7 +219,7 @@ static void p9_conn_cancel(struct p9_conn *m, int err)
 	spin_unlock_irqrestore(&m->client->lock, flags);
 
 	list_for_each_entry_safe(req, rtmp, &cancel_list, req_list) {
-		P9_DPRINTK(P9_DEBUG_ERROR, "call back req %p\n", req);
+		p9_debug(P9_DEBUG_ERROR, "call back req %p\n", req);
 		list_del(&req->req_list);
 		p9_client_cb(m->client, req);
 	}
@@ -275,7 +277,7 @@ static int p9_fd_read(struct p9_client *client, void *v, int len)
 		return -EREMOTEIO;
 
 	if (!(ts->rd->f_flags & O_NONBLOCK))
-		P9_DPRINTK(P9_DEBUG_ERROR, "blocking read ...\n");
+		p9_debug(P9_DEBUG_ERROR, "blocking read ...\n");
 
 	ret = kernel_read(ts->rd, ts->rd->f_pos, v, len);
 	if (ret <= 0 && ret != -ERESTARTSYS && ret != -EAGAIN)
@@ -299,7 +301,7 @@ static void p9_read_work(struct work_struct *work)
 	if (m->err < 0)
 		return;
 
-	P9_DPRINTK(P9_DEBUG_TRANS, "start mux %p pos %d\n", m, m->rpos);
+	p9_debug(P9_DEBUG_TRANS, "start mux %p pos %d\n", m, m->rpos);
 
 	if (!m->rbuf) {
 		m->rbuf = m->tmp_buf;
@@ -308,11 +310,11 @@ static void p9_read_work(struct work_struct *work)
 	}
 
 	clear_bit(Rpending, &m->wsched);
-	P9_DPRINTK(P9_DEBUG_TRANS, "read mux %p pos %d size: %d = %d\n", m,
-					m->rpos, m->rsize, m->rsize-m->rpos);
+	p9_debug(P9_DEBUG_TRANS, "read mux %p pos %d size: %d = %d\n",
+		 m, m->rpos, m->rsize, m->rsize-m->rpos);
 	err = p9_fd_read(m->client, m->rbuf + m->rpos,
 						m->rsize - m->rpos);
-	P9_DPRINTK(P9_DEBUG_TRANS, "mux %p got %d bytes\n", m, err);
+	p9_debug(P9_DEBUG_TRANS, "mux %p got %d bytes\n", m, err);
 	if (err == -EAGAIN) {
 		clear_bit(Rworksched, &m->wsched);
 		return;
@@ -325,25 +327,25 @@ static void p9_read_work(struct work_struct *work)
 
 	if ((!m->req) && (m->rpos == m->rsize)) { /* header read in */
 		u16 tag;
-		P9_DPRINTK(P9_DEBUG_TRANS, "got new header\n");
+		p9_debug(P9_DEBUG_TRANS, "got new header\n");
 
 		n = le32_to_cpu(*(__le32 *) m->rbuf); /* read packet size */
 		if (n >= m->client->msize) {
-			P9_DPRINTK(P9_DEBUG_ERROR,
-				"requested packet size too big: %d\n", n);
+			p9_debug(P9_DEBUG_ERROR,
+				 "requested packet size too big: %d\n", n);
 			err = -EIO;
 			goto error;
 		}
 
 		tag = le16_to_cpu(*(__le16 *) (m->rbuf+5)); /* read tag */
-		P9_DPRINTK(P9_DEBUG_TRANS,
-			"mux %p pkt: size: %d bytes tag: %d\n", m, n, tag);
+		p9_debug(P9_DEBUG_TRANS,
+			 "mux %p pkt: size: %d bytes tag: %d\n", m, n, tag);
 
 		m->req = p9_tag_lookup(m->client, tag);
 		if (!m->req || (m->req->status != REQ_STATUS_SENT &&
 					m->req->status != REQ_STATUS_FLSH)) {
-			P9_DPRINTK(P9_DEBUG_ERROR, "Unexpected packet tag %d\n",
-								 tag);
+			p9_debug(P9_DEBUG_ERROR, "Unexpected packet tag %d\n",
+				 tag);
 			err = -EIO;
 			goto error;
 		}
@@ -364,7 +366,7 @@ static void p9_read_work(struct work_struct *work)
 
 	/* not an else because some packets (like clunk) have no payload */
 	if ((m->req) && (m->rpos == m->rsize)) { /* packet is read in */
-		P9_DPRINTK(P9_DEBUG_TRANS, "got new packet\n");
+		p9_debug(P9_DEBUG_TRANS, "got new packet\n");
 		spin_lock(&m->client->lock);
 		if (m->req->status != REQ_STATUS_ERROR)
 			m->req->status = REQ_STATUS_RCVD;
@@ -384,7 +386,7 @@ static void p9_read_work(struct work_struct *work)
 			n = p9_fd_poll(m->client, NULL);
 
 		if (n & POLLIN) {
-			P9_DPRINTK(P9_DEBUG_TRANS, "sched read work %p\n", m);
+			p9_debug(P9_DEBUG_TRANS, "sched read work %p\n", m);
 			schedule_work(&m->rq);
 		} else
 			clear_bit(Rworksched, &m->wsched);
@@ -418,7 +420,7 @@ static int p9_fd_write(struct p9_client *client, void *v, int len)
 		return -EREMOTEIO;
 
 	if (!(ts->wr->f_flags & O_NONBLOCK))
-		P9_DPRINTK(P9_DEBUG_ERROR, "blocking write ...\n");
+		p9_debug(P9_DEBUG_ERROR, "blocking write ...\n");
 
 	oldfs = get_fs();
 	set_fs(get_ds());
@@ -460,7 +462,7 @@ static void p9_write_work(struct work_struct *work)
 		req = list_entry(m->unsent_req_list.next, struct p9_req_t,
 			       req_list);
 		req->status = REQ_STATUS_SENT;
-		P9_DPRINTK(P9_DEBUG_TRANS, "move req %p\n", req);
+		p9_debug(P9_DEBUG_TRANS, "move req %p\n", req);
 		list_move_tail(&req->req_list, &m->req_list);
 
 		m->wbuf = req->tc->sdata;
@@ -469,11 +471,11 @@ static void p9_write_work(struct work_struct *work)
 		spin_unlock(&m->client->lock);
 	}
 
-	P9_DPRINTK(P9_DEBUG_TRANS, "mux %p pos %d size %d\n", m, m->wpos,
-								m->wsize);
+	p9_debug(P9_DEBUG_TRANS, "mux %p pos %d size %d\n",
+		 m, m->wpos, m->wsize);
 	clear_bit(Wpending, &m->wsched);
 	err = p9_fd_write(m->client, m->wbuf + m->wpos, m->wsize - m->wpos);
-	P9_DPRINTK(P9_DEBUG_TRANS, "mux %p sent %d bytes\n", m, err);
+	p9_debug(P9_DEBUG_TRANS, "mux %p sent %d bytes\n", m, err);
 	if (err == -EAGAIN) {
 		clear_bit(Wworksched, &m->wsched);
 		return;
@@ -497,7 +499,7 @@ static void p9_write_work(struct work_struct *work)
 			n = p9_fd_poll(m->client, NULL);
 
 		if (n & POLLOUT) {
-			P9_DPRINTK(P9_DEBUG_TRANS, "sched write work %p\n", m);
+			p9_debug(P9_DEBUG_TRANS, "sched write work %p\n", m);
 			schedule_work(&m->wq);
 		} else
 			clear_bit(Wworksched, &m->wsched);
@@ -551,7 +553,7 @@ p9_pollwait(struct file *filp, wait_queue_head_t *wait_address, poll_table *p)
 	}
 
 	if (!pwait) {
-		P9_DPRINTK(P9_DEBUG_ERROR, "not enough wait_address slots\n");
+		p9_debug(P9_DEBUG_ERROR, "not enough wait_address slots\n");
 		return;
 	}
 
@@ -573,8 +575,7 @@ static struct p9_conn *p9_conn_create(struct p9_client *client)
 	int n;
 	struct p9_conn *m;
 
-	P9_DPRINTK(P9_DEBUG_TRANS, "client %p msize %d\n", client,
-								client->msize);
+	p9_debug(P9_DEBUG_TRANS, "client %p msize %d\n", client, client->msize);
 	m = kzalloc(sizeof(struct p9_conn), GFP_KERNEL);
 	if (!m)
 		return ERR_PTR(-ENOMEM);
@@ -591,12 +592,12 @@ static struct p9_conn *p9_conn_create(struct p9_client *client)
 
 	n = p9_fd_poll(client, &m->pt);
 	if (n & POLLIN) {
-		P9_DPRINTK(P9_DEBUG_TRANS, "mux %p can read\n", m);
+		p9_debug(P9_DEBUG_TRANS, "mux %p can read\n", m);
 		set_bit(Rpending, &m->wsched);
 	}
 
 	if (n & POLLOUT) {
-		P9_DPRINTK(P9_DEBUG_TRANS, "mux %p can write\n", m);
+		p9_debug(P9_DEBUG_TRANS, "mux %p can write\n", m);
 		set_bit(Wpending, &m->wsched);
 	}
 
@@ -618,7 +619,7 @@ static void p9_poll_mux(struct p9_conn *m)
 
 	n = p9_fd_poll(m->client, NULL);
 	if (n < 0 || n & (POLLERR | POLLHUP | POLLNVAL)) {
-		P9_DPRINTK(P9_DEBUG_TRANS, "error mux %p err %d\n", m, n);
+		p9_debug(P9_DEBUG_TRANS, "error mux %p err %d\n", m, n);
 		if (n >= 0)
 			n = -ECONNRESET;
 		p9_conn_cancel(m, n);
@@ -626,19 +627,19 @@ static void p9_poll_mux(struct p9_conn *m)
 
 	if (n & POLLIN) {
 		set_bit(Rpending, &m->wsched);
-		P9_DPRINTK(P9_DEBUG_TRANS, "mux %p can read\n", m);
+		p9_debug(P9_DEBUG_TRANS, "mux %p can read\n", m);
 		if (!test_and_set_bit(Rworksched, &m->wsched)) {
-			P9_DPRINTK(P9_DEBUG_TRANS, "sched read work %p\n", m);
+			p9_debug(P9_DEBUG_TRANS, "sched read work %p\n", m);
 			schedule_work(&m->rq);
 		}
 	}
 
 	if (n & POLLOUT) {
 		set_bit(Wpending, &m->wsched);
-		P9_DPRINTK(P9_DEBUG_TRANS, "mux %p can write\n", m);
+		p9_debug(P9_DEBUG_TRANS, "mux %p can write\n", m);
 		if ((m->wsize || !list_empty(&m->unsent_req_list)) &&
 		    !test_and_set_bit(Wworksched, &m->wsched)) {
-			P9_DPRINTK(P9_DEBUG_TRANS, "sched write work %p\n", m);
+			p9_debug(P9_DEBUG_TRANS, "sched write work %p\n", m);
 			schedule_work(&m->wq);
 		}
 	}
@@ -661,8 +662,8 @@ static int p9_fd_request(struct p9_client *client, struct p9_req_t *req)
 	struct p9_trans_fd *ts = client->trans;
 	struct p9_conn *m = ts->conn;
 
-	P9_DPRINTK(P9_DEBUG_TRANS, "mux %p task %p tcall %p id %d\n", m,
-						current, req->tc, req->tc->id);
+	p9_debug(P9_DEBUG_TRANS, "mux %p task %p tcall %p id %d\n",
+		 m, current, req->tc, req->tc->id);
 	if (m->err < 0)
 		return m->err;
 
@@ -686,7 +687,7 @@ static int p9_fd_cancel(struct p9_client *client, struct p9_req_t *req)
 {
 	int ret = 1;
 
-	P9_DPRINTK(P9_DEBUG_TRANS, "client %p req %p\n", client, req);
+	p9_debug(P9_DEBUG_TRANS, "client %p req %p\n", client, req);
 
 	spin_lock(&client->lock);
 
@@ -726,8 +727,8 @@ static int parse_opts(char *params, struct p9_fd_opts *opts)
 
 	tmp_options = kstrdup(params, GFP_KERNEL);
 	if (!tmp_options) {
-		P9_DPRINTK(P9_DEBUG_ERROR,
-				"failed to allocate copy of option string\n");
+		p9_debug(P9_DEBUG_ERROR,
+			 "failed to allocate copy of option string\n");
 		return -ENOMEM;
 	}
 	options = tmp_options;
@@ -741,8 +742,8 @@ static int parse_opts(char *params, struct p9_fd_opts *opts)
 		if (token != Opt_err) {
 			r = match_int(&args[0], &option);
 			if (r < 0) {
-				P9_DPRINTK(P9_DEBUG_ERROR,
-				"integer field, but no integer?\n");
+				p9_debug(P9_DEBUG_ERROR,
+					 "integer field, but no integer?\n");
 				continue;
 			}
 		}
@@ -801,7 +802,8 @@ static int p9_socket_open(struct p9_client *client, struct socket *csocket)
 	csocket->sk->sk_allocation = GFP_NOIO;
 	fd = sock_map_fd(csocket, 0);
 	if (fd < 0) {
-		P9_EPRINTK(KERN_ERR, "p9_socket_open: failed to map fd\n");
+		pr_err("%s (%d): failed to map fd\n",
+		       __func__, task_pid_nr(current));
 		sock_release(csocket);
 		kfree(p);
 		return fd;
@@ -837,8 +839,8 @@ static int p9_socket_open(struct p9_client *client, struct socket *csocket)
 
 static void p9_conn_destroy(struct p9_conn *m)
 {
-	P9_DPRINTK(P9_DEBUG_TRANS, "mux %p prev %p next %p\n", m,
-		m->mux_list.prev, m->mux_list.next);
+	p9_debug(P9_DEBUG_TRANS, "mux %p prev %p next %p\n",
+		 m, m->mux_list.prev, m->mux_list.next);
 
 	p9_mux_poll_stop(m);
 	cancel_work_sync(&m->rq);
@@ -919,7 +921,8 @@ p9_fd_create_tcp(struct p9_client *client, const char *addr, char *args)
 	err = __sock_create(read_pnet(&current->nsproxy->net_ns), PF_INET,
 			    SOCK_STREAM, IPPROTO_TCP, &csocket, 1);
 	if (err) {
-		P9_EPRINTK(KERN_ERR, "p9_trans_tcp: problem creating socket\n");
+		pr_err("%s (%d): problem creating socket\n",
+		       __func__, task_pid_nr(current));
 		return err;
 	}
 
@@ -927,9 +930,8 @@ p9_fd_create_tcp(struct p9_client *client, const char *addr, char *args)
 				    (struct sockaddr *)&sin_server,
 				    sizeof(struct sockaddr_in), 0);
 	if (err < 0) {
-		P9_EPRINTK(KERN_ERR,
-			"p9_trans_tcp: problem connecting socket to %s\n",
-			addr);
+		pr_err("%s (%d): problem connecting socket to %s\n",
+		       __func__, task_pid_nr(current), addr);
 		sock_release(csocket);
 		return err;
 	}
@@ -947,8 +949,8 @@ p9_fd_create_unix(struct p9_client *client, const char *addr, char *args)
 	csocket = NULL;
 
 	if (strlen(addr) >= UNIX_PATH_MAX) {
-		P9_EPRINTK(KERN_ERR, "p9_trans_unix: address too long: %s\n",
-			addr);
+		pr_err("%s (%d): address too long: %s\n",
+		       __func__, task_pid_nr(current), addr);
 		return -ENAMETOOLONG;
 	}
 
@@ -957,15 +959,16 @@ p9_fd_create_unix(struct p9_client *client, const char *addr, char *args)
 	err = __sock_create(read_pnet(&current->nsproxy->net_ns), PF_UNIX,
 			    SOCK_STREAM, 0, &csocket, 1);
 	if (err < 0) {
-		P9_EPRINTK(KERN_ERR, "p9_trans_unix: problem creating socket\n");
+		pr_err("%s (%d): problem creating socket\n",
+		       __func__, task_pid_nr(current));
+
 		return err;
 	}
 	err = csocket->ops->connect(csocket, (struct sockaddr *)&sun_server,
 			sizeof(struct sockaddr_un) - 1, 0);
 	if (err < 0) {
-		P9_EPRINTK(KERN_ERR,
-			"p9_trans_unix: problem connecting socket: %s: %d\n",
-			addr, err);
+		pr_err("%s (%d): problem connecting socket: %s: %d\n",
+		       __func__, task_pid_nr(current), addr, err);
 		sock_release(csocket);
 		return err;
 	}
@@ -983,7 +986,7 @@ p9_fd_create(struct p9_client *client, const char *addr, char *args)
 	parse_opts(args, &opts);
 
 	if (opts.rfd == ~0 || opts.wfd == ~0) {
-		printk(KERN_ERR "v9fs: Insufficient options for proto=fd\n");
+		pr_err("Insufficient options for proto=fd\n");
 		return -ENOPROTOOPT;
 	}
 
@@ -1050,7 +1053,7 @@ static void p9_poll_workfn(struct work_struct *work)
 {
 	unsigned long flags;
 
-	P9_DPRINTK(P9_DEBUG_TRANS, "start %p\n", current);
+	p9_debug(P9_DEBUG_TRANS, "start %p\n", current);
 
 	spin_lock_irqsave(&p9_poll_lock, flags);
 	while (!list_empty(&p9_poll_pending_list)) {
@@ -1066,7 +1069,7 @@ static void p9_poll_workfn(struct work_struct *work)
 	}
 	spin_unlock_irqrestore(&p9_poll_lock, flags);
 
-	P9_DPRINTK(P9_DEBUG_TRANS, "finish\n");
+	p9_debug(P9_DEBUG_TRANS, "finish\n");
 }
 
 int p9_trans_fd_init(void)
diff --git a/net/9p/trans_rdma.c b/net/9p/trans_rdma.c
index 159c50f1c6bf..2c69ddd691a1 100644
--- a/net/9p/trans_rdma.c
+++ b/net/9p/trans_rdma.c
@@ -26,6 +26,8 @@
  *
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/in.h>
 #include <linux/module.h>
 #include <linux/net.h>
@@ -178,8 +180,8 @@ static int parse_opts(char *params, struct p9_rdma_opts *opts)
 
 	tmp_options = kstrdup(params, GFP_KERNEL);
 	if (!tmp_options) {
-		P9_DPRINTK(P9_DEBUG_ERROR,
-			   "failed to allocate copy of option string\n");
+		p9_debug(P9_DEBUG_ERROR,
+			 "failed to allocate copy of option string\n");
 		return -ENOMEM;
 	}
 	options = tmp_options;
@@ -192,8 +194,8 @@ static int parse_opts(char *params, struct p9_rdma_opts *opts)
 		token = match_token(p, tokens, args);
 		r = match_int(&args[0], &option);
 		if (r < 0) {
-			P9_DPRINTK(P9_DEBUG_ERROR,
-				   "integer field, but no integer?\n");
+			p9_debug(P9_DEBUG_ERROR,
+				 "integer field, but no integer?\n");
 			continue;
 		}
 		switch (token) {
@@ -301,8 +303,7 @@ handle_recv(struct p9_client *client, struct p9_trans_rdma *rdma,
 	return;
 
  err_out:
-	P9_DPRINTK(P9_DEBUG_ERROR, "req %p err %d status %d\n",
-		   req, err, status);
+	p9_debug(P9_DEBUG_ERROR, "req %p err %d status %d\n", req, err, status);
 	rdma->state = P9_RDMA_FLUSHING;
 	client->status = Disconnected;
 }
@@ -318,8 +319,8 @@ handle_send(struct p9_client *client, struct p9_trans_rdma *rdma,
 
 static void qp_event_handler(struct ib_event *event, void *context)
 {
-	P9_DPRINTK(P9_DEBUG_ERROR, "QP event %d context %p\n", event->event,
-								context);
+	p9_debug(P9_DEBUG_ERROR, "QP event %d context %p\n",
+		 event->event, context);
 }
 
 static void cq_comp_handler(struct ib_cq *cq, void *cq_context)
@@ -345,8 +346,7 @@ static void cq_comp_handler(struct ib_cq *cq, void *cq_context)
 			break;
 
 		default:
-			printk(KERN_ERR "9prdma: unexpected completion type, "
-			       "c->wc_op=%d, wc.opcode=%d, status=%d\n",
+			pr_err("unexpected completion type, c->wc_op=%d, wc.opcode=%d, status=%d\n",
 			       c->wc_op, wc.opcode, wc.status);
 			break;
 		}
@@ -356,7 +356,7 @@ static void cq_comp_handler(struct ib_cq *cq, void *cq_context)
 
 static void cq_event_handler(struct ib_event *e, void *v)
 {
-	P9_DPRINTK(P9_DEBUG_ERROR, "CQ event %d context %p\n", e->event, v);
+	p9_debug(P9_DEBUG_ERROR, "CQ event %d context %p\n", e->event, v);
 }
 
 static void rdma_destroy_trans(struct p9_trans_rdma *rdma)
@@ -407,7 +407,7 @@ post_recv(struct p9_client *client, struct p9_rdma_context *c)
 	return ib_post_recv(rdma->qp, &wr, &bad_wr);
 
  error:
-	P9_DPRINTK(P9_DEBUG_ERROR, "EIO\n");
+	p9_debug(P9_DEBUG_ERROR, "EIO\n");
 	return -EIO;
 }
 
@@ -500,7 +500,7 @@ static int rdma_request(struct p9_client *client, struct p9_req_t *req)
 	kfree(c);
 	kfree(rpl_context->rc);
 	kfree(rpl_context);
-	P9_DPRINTK(P9_DEBUG_ERROR, "EIO\n");
+	p9_debug(P9_DEBUG_ERROR, "EIO\n");
 	return -EIO;
  err_free1:
 	kfree(rpl_context->rc);
diff --git a/net/9p/trans_virtio.c b/net/9p/trans_virtio.c
index 32aa9834229c..330421e54713 100644
--- a/net/9p/trans_virtio.c
+++ b/net/9p/trans_virtio.c
@@ -26,6 +26,8 @@
  *
  */
 
+#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+
 #include <linux/in.h>
 #include <linux/module.h>
 #include <linux/net.h>
@@ -145,7 +147,7 @@ static void req_done(struct virtqueue *vq)
 	struct p9_req_t *req;
 	unsigned long flags;
 
-	P9_DPRINTK(P9_DEBUG_TRANS, ": request done\n");
+	p9_debug(P9_DEBUG_TRANS, ": request done\n");
 
 	while (1) {
 		spin_lock_irqsave(&chan->lock, flags);
@@ -158,8 +160,8 @@ static void req_done(struct virtqueue *vq)
 		spin_unlock_irqrestore(&chan->lock, flags);
 		/* Wakeup if anyone waiting for VirtIO ring space. */
 		wake_up(chan->vc_wq);
-		P9_DPRINTK(P9_DEBUG_TRANS, ": rc %p\n", rc);
-		P9_DPRINTK(P9_DEBUG_TRANS, ": lookup tag %d\n", rc->tag);
+		p9_debug(P9_DEBUG_TRANS, ": rc %p\n", rc);
+		p9_debug(P9_DEBUG_TRANS, ": lookup tag %d\n", rc->tag);
 		req = p9_tag_lookup(chan->client, rc->tag);
 		req->status = REQ_STATUS_RCVD;
 		p9_client_cb(chan->client, req);
@@ -257,7 +259,7 @@ p9_virtio_request(struct p9_client *client, struct p9_req_t *req)
 	unsigned long flags;
 	struct virtio_chan *chan = client->trans;
 
-	P9_DPRINTK(P9_DEBUG_TRANS, "9p debug: virtio request\n");
+	p9_debug(P9_DEBUG_TRANS, "9p debug: virtio request\n");
 
 	req->status = REQ_STATUS_SENT;
 req_retry:
@@ -280,20 +282,19 @@ req_retry:
 			if (err  == -ERESTARTSYS)
 				return err;
 
-			P9_DPRINTK(P9_DEBUG_TRANS, "9p:Retry virtio request\n");
+			p9_debug(P9_DEBUG_TRANS, "Retry virtio request\n");
 			goto req_retry;
 		} else {
 			spin_unlock_irqrestore(&chan->lock, flags);
-			P9_DPRINTK(P9_DEBUG_TRANS,
-					"9p debug: "
-					"virtio rpc add_buf returned failure");
+			p9_debug(P9_DEBUG_TRANS,
+				 "virtio rpc add_buf returned failure\n");
 			return -EIO;
 		}
 	}
 	virtqueue_kick(chan->vq);
 	spin_unlock_irqrestore(&chan->lock, flags);
 
-	P9_DPRINTK(P9_DEBUG_TRANS, "9p debug: virtio request kicked\n");
+	p9_debug(P9_DEBUG_TRANS, "virtio request kicked\n");
 	return 0;
 }
 
@@ -354,7 +355,7 @@ p9_virtio_zc_request(struct p9_client *client, struct p9_req_t *req,
 	struct page **in_pages = NULL, **out_pages = NULL;
 	struct virtio_chan *chan = client->trans;
 
-	P9_DPRINTK(P9_DEBUG_TRANS, "9p debug: virtio request\n");
+	p9_debug(P9_DEBUG_TRANS, "virtio request\n");
 
 	if (uodata) {
 		out_nr_pages = p9_nr_pages(uodata, outlen);
@@ -423,20 +424,19 @@ req_retry_pinned:
 			if (err  == -ERESTARTSYS)
 				goto err_out;
 
-			P9_DPRINTK(P9_DEBUG_TRANS, "9p:Retry virtio request\n");
+			p9_debug(P9_DEBUG_TRANS, "Retry virtio request\n");
 			goto req_retry_pinned;
 		} else {
 			spin_unlock_irqrestore(&chan->lock, flags);
-			P9_DPRINTK(P9_DEBUG_TRANS,
-				   "9p debug: "
-				   "virtio rpc add_buf returned failure");
+			p9_debug(P9_DEBUG_TRANS,
+				 "virtio rpc add_buf returned failure\n");
 			err = -EIO;
 			goto err_out;
 		}
 	}
 	virtqueue_kick(chan->vq);
 	spin_unlock_irqrestore(&chan->lock, flags);
-	P9_DPRINTK(P9_DEBUG_TRANS, "9p debug: virtio request kicked\n");
+	p9_debug(P9_DEBUG_TRANS, "virtio request kicked\n");
 	err = wait_event_interruptible(*req->wq,
 				       req->status >= REQ_STATUS_RCVD);
 	/*
@@ -491,7 +491,7 @@ static int p9_virtio_probe(struct virtio_device *vdev)
 
 	chan = kmalloc(sizeof(struct virtio_chan), GFP_KERNEL);
 	if (!chan) {
-		printk(KERN_ERR "9p: Failed to allocate virtio 9P channel\n");
+		pr_err("Failed to allocate virtio 9P channel\n");
 		err = -ENOMEM;
 		goto fail;
 	}
@@ -592,7 +592,7 @@ p9_virtio_create(struct p9_client *client, const char *devname, char *args)
 	mutex_unlock(&virtio_9p_lock);
 
 	if (!found) {
-		printk(KERN_ERR "9p: no channels available\n");
+		pr_err("no channels available\n");
 		return ret;
 	}
 
diff --git a/net/9p/util.c b/net/9p/util.c
index 9c1c9348ac35..6ceeeb384de7 100644
--- a/net/9p/util.c
+++ b/net/9p/util.c
@@ -106,7 +106,7 @@ retry:
 	else if (error)
 		return -1;
 
-	P9_DPRINTK(P9_DEBUG_MUX, " id %d pool %p\n", i, p);
+	p9_debug(P9_DEBUG_MUX, " id %d pool %p\n", i, p);
 	return i;
 }
 EXPORT_SYMBOL(p9_idpool_get);
@@ -124,7 +124,7 @@ void p9_idpool_put(int id, struct p9_idpool *p)
 {
 	unsigned long flags;
 
-	P9_DPRINTK(P9_DEBUG_MUX, " id %d pool %p\n", id, p);
+	p9_debug(P9_DEBUG_MUX, " id %d pool %p\n", id, p);
 
 	spin_lock_irqsave(&p->lock, flags);
 	idr_remove(&p->pool, id);
diff --git a/net/caif/caif_dev.c b/net/caif/caif_dev.c
index b0ce14fbf6ef..61570ee76fe6 100644
--- a/net/caif/caif_dev.c
+++ b/net/caif/caif_dev.c
@@ -76,12 +76,12 @@ static struct caif_device_entry_list *caif_device_list(struct net *net)
 
 static void caifd_put(struct caif_device_entry *e)
 {
-	irqsafe_cpu_dec(*e->pcpu_refcnt);
+	this_cpu_dec(*e->pcpu_refcnt);
 }
 
 static void caifd_hold(struct caif_device_entry *e)
 {
-	irqsafe_cpu_inc(*e->pcpu_refcnt);
+	this_cpu_inc(*e->pcpu_refcnt);
 }
 
 static int caifd_refcnt_read(struct caif_device_entry *e)
diff --git a/net/caif/cffrml.c b/net/caif/cffrml.c
index d3ca87bf23b7..0a7df7ef062d 100644
--- a/net/caif/cffrml.c
+++ b/net/caif/cffrml.c
@@ -177,14 +177,14 @@ void cffrml_put(struct cflayer *layr)
 {
 	struct cffrml *this = container_obj(layr);
 	if (layr != NULL && this->pcpu_refcnt != NULL)
-		irqsafe_cpu_dec(*this->pcpu_refcnt);
+		this_cpu_dec(*this->pcpu_refcnt);
 }
 
 void cffrml_hold(struct cflayer *layr)
 {
 	struct cffrml *this = container_obj(layr);
 	if (layr != NULL && this->pcpu_refcnt != NULL)
-		irqsafe_cpu_inc(*this->pcpu_refcnt);
+		this_cpu_inc(*this->pcpu_refcnt);
 }
 
 int cffrml_refcnt_read(struct cflayer *layr)
diff --git a/net/core/dev_addr_lists.c b/net/core/dev_addr_lists.c
index febba516db62..29c07fef9228 100644
--- a/net/core/dev_addr_lists.c
+++ b/net/core/dev_addr_lists.c
@@ -427,7 +427,7 @@ EXPORT_SYMBOL(dev_uc_del);
  *
  *	Add newly added addresses to the destination device and release
  *	addresses that have no users left. The source device must be
- *	locked by netif_tx_lock_bh.
+ *	locked by netif_addr_lock_bh.
  *
  *	This function is intended to be called from the dev->set_rx_mode
  *	function of layered software devices.
@@ -439,11 +439,11 @@ int dev_uc_sync(struct net_device *to, struct net_device *from)
 	if (to->addr_len != from->addr_len)
 		return -EINVAL;
 
-	netif_addr_lock_bh(to);
+	netif_addr_lock_nested(to);
 	err = __hw_addr_sync(&to->uc, &from->uc, to->addr_len);
 	if (!err)
 		__dev_set_rx_mode(to);
-	netif_addr_unlock_bh(to);
+	netif_addr_unlock(to);
 	return err;
 }
 EXPORT_SYMBOL(dev_uc_sync);
@@ -463,7 +463,7 @@ void dev_uc_unsync(struct net_device *to, struct net_device *from)
 		return;
 
 	netif_addr_lock_bh(from);
-	netif_addr_lock(to);
+	netif_addr_lock_nested(to);
 	__hw_addr_unsync(&to->uc, &from->uc, to->addr_len);
 	__dev_set_rx_mode(to);
 	netif_addr_unlock(to);
@@ -590,7 +590,7 @@ EXPORT_SYMBOL(dev_mc_del_global);
  *
  *	Add newly added addresses to the destination device and release
  *	addresses that have no users left. The source device must be
- *	locked by netif_tx_lock_bh.
+ *	locked by netif_addr_lock_bh.
  *
  *	This function is intended to be called from the ndo_set_rx_mode
  *	function of layered software devices.
@@ -602,11 +602,11 @@ int dev_mc_sync(struct net_device *to, struct net_device *from)
 	if (to->addr_len != from->addr_len)
 		return -EINVAL;
 
-	netif_addr_lock_bh(to);
+	netif_addr_lock_nested(to);
 	err = __hw_addr_sync(&to->mc, &from->mc, to->addr_len);
 	if (!err)
 		__dev_set_rx_mode(to);
-	netif_addr_unlock_bh(to);
+	netif_addr_unlock(to);
 	return err;
 }
 EXPORT_SYMBOL(dev_mc_sync);
@@ -626,7 +626,7 @@ void dev_mc_unsync(struct net_device *to, struct net_device *from)
 		return;
 
 	netif_addr_lock_bh(from);
-	netif_addr_lock(to);
+	netif_addr_lock_nested(to);
 	__hw_addr_unsync(&to->mc, &from->mc, to->addr_len);
 	__dev_set_rx_mode(to);
 	netif_addr_unlock(to);
diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index 449fe0f068f8..65f80c7b1656 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -2024,13 +2024,13 @@ static void pktgen_setup_inject(struct pktgen_dev *pkt_dev)
 		pr_warning("WARNING: Requested queue_map_min (zero-based) (%d) exceeds valid range [0 - %d] for (%d) queues on %s, resetting\n",
 			   pkt_dev->queue_map_min, (ntxq ?: 1) - 1, ntxq,
 			   pkt_dev->odevname);
-		pkt_dev->queue_map_min = ntxq - 1;
+		pkt_dev->queue_map_min = (ntxq ?: 1) - 1;
 	}
 	if (pkt_dev->queue_map_max >= ntxq) {
 		pr_warning("WARNING: Requested queue_map_max (zero-based) (%d) exceeds valid range [0 - %d] for (%d) queues on %s, resetting\n",
 			   pkt_dev->queue_map_max, (ntxq ?: 1) - 1, ntxq,
 			   pkt_dev->odevname);
-		pkt_dev->queue_map_max = ntxq - 1;
+		pkt_dev->queue_map_max = (ntxq ?: 1) - 1;
 	}
 
 	/* Default to the interface's mac if not explicitly set. */
diff --git a/net/core/sock.c b/net/core/sock.c
index 002939cfc069..5c5af9988f94 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -112,6 +112,7 @@
 #include <linux/highmem.h>
 #include <linux/user_namespace.h>
 #include <linux/jump_label.h>
+#include <linux/memcontrol.h>
 
 #include <asm/uaccess.h>
 #include <asm/system.h>
@@ -1272,6 +1273,12 @@ void sk_release_kernel(struct sock *sk)
 }
 EXPORT_SYMBOL(sk_release_kernel);
 
+static void sk_update_clone(const struct sock *sk, struct sock *newsk)
+{
+	if (mem_cgroup_sockets_enabled && sk->sk_cgrp)
+		sock_update_memcg(newsk);
+}
+
 /**
  *	sk_clone_lock - clone a socket, and lock its clone
  *	@sk: the socket to clone
@@ -1362,6 +1369,8 @@ struct sock *sk_clone_lock(const struct sock *sk, const gfp_t priority)
 		sk_set_socket(newsk, NULL);
 		newsk->sk_wq = NULL;
 
+		sk_update_clone(sk, newsk);
+
 		if (newsk->sk_prot->sockets_allocated)
 			sk_sockets_allocated_inc(newsk);
 
diff --git a/net/ipv4/Kconfig b/net/ipv4/Kconfig
index 335ca7abbd46..aa2a2c79776f 100644
--- a/net/ipv4/Kconfig
+++ b/net/ipv4/Kconfig
@@ -408,8 +408,12 @@ config INET_TCP_DIAG
 	def_tristate INET_DIAG
 
 config INET_UDP_DIAG
+	tristate "UDP: socket monitoring interface"
 	depends on INET_DIAG
-	def_tristate INET_DIAG && IPV6
+	default n
+	---help---
+	  Support for UDP socket monitoring interface used by the ss tool.
+	  If unsure, say Y.
 
 menuconfig TCP_CONG_ADVANCED
 	bool "TCP: advanced congestion control"
diff --git a/net/ipv4/igmp.c b/net/ipv4/igmp.c
index fa057d105bef..5104bc0bbdbe 100644
--- a/net/ipv4/igmp.c
+++ b/net/ipv4/igmp.c
@@ -880,6 +880,8 @@ static void igmp_heard_query(struct in_device *in_dev, struct sk_buff *skb,
 		 * to be intended in a v3 query.
 		 */
 		max_delay = IGMPV3_MRC(ih3->code)*(HZ/IGMP_TIMER_SCALE);
+		if (!max_delay)
+			max_delay = 1;	/* can't mod w/ 0 */
 	} else { /* v3 */
 		if (!pskb_may_pull(skb, sizeof(struct igmpv3_query)))
 			return;
diff --git a/net/sunrpc/auth_generic.c b/net/sunrpc/auth_generic.c
index e010a015d996..1426ec3d0a53 100644
--- a/net/sunrpc/auth_generic.c
+++ b/net/sunrpc/auth_generic.c
@@ -41,15 +41,17 @@ EXPORT_SYMBOL_GPL(rpc_lookup_cred);
 /*
  * Public call interface for looking up machine creds.
  */
-struct rpc_cred *rpc_lookup_machine_cred(void)
+struct rpc_cred *rpc_lookup_machine_cred(const char *service_name)
 {
 	struct auth_cred acred = {
 		.uid = RPC_MACHINE_CRED_USERID,
 		.gid = RPC_MACHINE_CRED_GROUPID,
+		.principal = service_name,
 		.machine_cred = 1,
 	};
 
-	dprintk("RPC:       looking up machine cred\n");
+	dprintk("RPC:       looking up machine cred for service %s\n",
+			service_name);
 	return generic_auth.au_ops->lookup_cred(&generic_auth, &acred, 0);
 }
 EXPORT_SYMBOL_GPL(rpc_lookup_machine_cred);
diff --git a/net/sunrpc/auth_gss/auth_gss.c b/net/sunrpc/auth_gss/auth_gss.c
index afb56553dfe7..28d72d298735 100644
--- a/net/sunrpc/auth_gss/auth_gss.c
+++ b/net/sunrpc/auth_gss/auth_gss.c
@@ -392,7 +392,8 @@ static void gss_encode_v0_msg(struct gss_upcall_msg *gss_msg)
 }
 
 static void gss_encode_v1_msg(struct gss_upcall_msg *gss_msg,
-				struct rpc_clnt *clnt, int machine_cred)
+				struct rpc_clnt *clnt,
+				const char *service_name)
 {
 	struct gss_api_mech *mech = gss_msg->auth->mech;
 	char *p = gss_msg->databuf;
@@ -407,12 +408,8 @@ static void gss_encode_v1_msg(struct gss_upcall_msg *gss_msg,
 		p += len;
 		gss_msg->msg.len += len;
 	}
-	if (machine_cred) {
-		len = sprintf(p, "service=* ");
-		p += len;
-		gss_msg->msg.len += len;
-	} else if (!strcmp(clnt->cl_program->name, "nfs4_cb")) {
-		len = sprintf(p, "service=nfs ");
+	if (service_name != NULL) {
+		len = sprintf(p, "service=%s ", service_name);
 		p += len;
 		gss_msg->msg.len += len;
 	}
@@ -429,17 +426,18 @@ static void gss_encode_v1_msg(struct gss_upcall_msg *gss_msg,
 }
 
 static void gss_encode_msg(struct gss_upcall_msg *gss_msg,
-				struct rpc_clnt *clnt, int machine_cred)
+				struct rpc_clnt *clnt,
+				const char *service_name)
 {
 	if (pipe_version == 0)
 		gss_encode_v0_msg(gss_msg);
 	else /* pipe_version == 1 */
-		gss_encode_v1_msg(gss_msg, clnt, machine_cred);
+		gss_encode_v1_msg(gss_msg, clnt, service_name);
 }
 
-static inline struct gss_upcall_msg *
-gss_alloc_msg(struct gss_auth *gss_auth, uid_t uid, struct rpc_clnt *clnt,
-		int machine_cred)
+static struct gss_upcall_msg *
+gss_alloc_msg(struct gss_auth *gss_auth, struct rpc_clnt *clnt,
+		uid_t uid, const char *service_name)
 {
 	struct gss_upcall_msg *gss_msg;
 	int vers;
@@ -459,7 +457,7 @@ gss_alloc_msg(struct gss_auth *gss_auth, uid_t uid, struct rpc_clnt *clnt,
 	atomic_set(&gss_msg->count, 1);
 	gss_msg->uid = uid;
 	gss_msg->auth = gss_auth;
-	gss_encode_msg(gss_msg, clnt, machine_cred);
+	gss_encode_msg(gss_msg, clnt, service_name);
 	return gss_msg;
 }
 
@@ -471,7 +469,7 @@ gss_setup_upcall(struct rpc_clnt *clnt, struct gss_auth *gss_auth, struct rpc_cr
 	struct gss_upcall_msg *gss_new, *gss_msg;
 	uid_t uid = cred->cr_uid;
 
-	gss_new = gss_alloc_msg(gss_auth, uid, clnt, gss_cred->gc_machine_cred);
+	gss_new = gss_alloc_msg(gss_auth, clnt, uid, gss_cred->gc_principal);
 	if (IS_ERR(gss_new))
 		return gss_new;
 	gss_msg = gss_add_msg(gss_new);
@@ -995,7 +993,9 @@ gss_create_cred(struct rpc_auth *auth, struct auth_cred *acred, int flags)
 	 */
 	cred->gc_base.cr_flags = 1UL << RPCAUTH_CRED_NEW;
 	cred->gc_service = gss_auth->service;
-	cred->gc_machine_cred = acred->machine_cred;
+	cred->gc_principal = NULL;
+	if (acred->machine_cred)
+		cred->gc_principal = acred->principal;
 	kref_get(&gss_auth->kref);
 	return &cred->gc_base;
 
@@ -1030,7 +1030,12 @@ gss_match(struct auth_cred *acred, struct rpc_cred *rc, int flags)
 	if (!test_bit(RPCAUTH_CRED_UPTODATE, &rc->cr_flags))
 		return 0;
 out:
-	if (acred->machine_cred != gss_cred->gc_machine_cred)
+	if (acred->principal != NULL) {
+		if (gss_cred->gc_principal == NULL)
+			return 0;
+		return strcmp(acred->principal, gss_cred->gc_principal) == 0;
+	}
+	if (gss_cred->gc_principal != NULL)
 		return 0;
 	return rc->cr_uid == acred->uid;
 }
@@ -1104,7 +1109,8 @@ static int gss_renew_cred(struct rpc_task *task)
 	struct rpc_auth *auth = oldcred->cr_auth;
 	struct auth_cred acred = {
 		.uid = oldcred->cr_uid,
-		.machine_cred = gss_cred->gc_machine_cred,
+		.principal = gss_cred->gc_principal,
+		.machine_cred = (gss_cred->gc_principal != NULL ? 1 : 0),
 	};
 	struct rpc_cred *new;
 
diff --git a/net/sunrpc/xdr.c b/net/sunrpc/xdr.c
index 277ebd4bf095..593f4c605305 100644
--- a/net/sunrpc/xdr.c
+++ b/net/sunrpc/xdr.c
@@ -296,7 +296,7 @@ _copy_to_pages(struct page **pages, size_t pgbase, const char *p, size_t len)
  * Copies data into an arbitrary memory location from an array of pages
  * The copy is assumed to be non-overlapping.
  */
-static void
+void
 _copy_from_pages(char *p, struct page **pages, size_t pgbase, size_t len)
 {
 	struct page **pgfrom;
@@ -324,6 +324,7 @@ _copy_from_pages(char *p, struct page **pages, size_t pgbase, size_t len)
 
 	} while ((len -= copy) != 0);
 }
+EXPORT_SYMBOL_GPL(_copy_from_pages);
 
 /*
  * xdr_shrink_bufhead
diff --git a/net/unix/Kconfig b/net/unix/Kconfig
index c2128b10e5f9..8b31ab85d050 100644
--- a/net/unix/Kconfig
+++ b/net/unix/Kconfig
@@ -22,7 +22,7 @@ config UNIX
 config UNIX_DIAG
 	tristate "UNIX: socket monitoring interface"
 	depends on UNIX
-	default UNIX
+	default n
 	---help---
 	  Support for UNIX socket monitoring interface used by the ss tool.
 	  If unsure, say Y.
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 8fda3b3f7be8..e3bfcbe8a520 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -227,7 +227,7 @@ our $Inline	= qr{inline|__always_inline|noinline};
 our $Member	= qr{->$Ident|\.$Ident|\[[^]]*\]};
 our $Lval	= qr{$Ident(?:$Member)*};
 
-our $Constant	= qr{(?:[0-9]+|0x[0-9a-fA-F]+)[UL]*};
+our $Constant	= qr{(?i:(?:[0-9]+|0x[0-9a-f]+)[ul]*)};
 our $Assignment	= qr{(?:\*\=|/=|%=|\+=|-=|<<=|>>=|&=|\^=|\|=|=)};
 our $Compare    = qr{<=|>=|==|!=|<|>};
 our $Operators	= qr{
@@ -315,7 +315,7 @@ sub build_types {
 	$NonptrType	= qr{
 			(?:$Modifier\s+|const\s+)*
 			(?:
-				(?:typeof|__typeof__)\s*\(\s*\**\s*$Ident\s*\)|
+				(?:typeof|__typeof__)\s*\([^\)]*\)|
 				(?:$typeTypedefs\b)|
 				(?:${all}\b)
 			)
@@ -334,6 +334,7 @@ our $match_balanced_parentheses = qr/(\((?:[^\(\)]+|(-1))*\))/;
 
 our $Typecast	= qr{\s*(\(\s*$NonptrType\s*\)){0,1}\s*};
 our $LvalOrFunc	= qr{($Lval)\s*($match_balanced_parentheses{0,1})\s*};
+our $FuncArg = qr{$Typecast{0,1}($LvalOrFunc|$Constant)};
 
 sub deparenthesize {
 	my ($string) = @_;
@@ -676,6 +677,10 @@ sub ctx_statement_block {
 			if ($off >= $len) {
 				last;
 			}
+			if ($level == 0 && substr($blk, $off) =~ /^.\s*#\s*define/) {
+				$level++;
+				$type = '#';
+			}
 		}
 		$p = $c;
 		$c = substr($blk, $off, 1);
@@ -738,6 +743,13 @@ sub ctx_statement_block {
 				last;
 			}
 		}
+		# Preprocessor commands end at the newline unless escaped.
+		if ($type eq '#' && $c eq "\n" && $p ne "\\") {
+			$level--;
+			$type = '';
+			$off++;
+			last;
+		}
 		$off++;
 	}
 	# We are truly at the end, so shuffle to the next line.
@@ -1020,7 +1032,7 @@ sub annotate_values {
 		} elsif ($cur =~ /^(\(\s*$Type\s*)\)/ && $av_pending eq '_') {
 			print "CAST($1)\n" if ($dbg_values > 1);
 			push(@av_paren_type, $type);
-			$type = 'C';
+			$type = 'c';
 
 		} elsif ($cur =~ /^($Type)\s*(?:$Ident|,|\)|\(|\s*$)/) {
 			print "DECLARE($1)\n" if ($dbg_values > 1);
@@ -1212,7 +1224,9 @@ sub possible {
 			case|
 			else|
 			asm|__asm__|
-			do
+			do|
+			\#|
+			\#\#|
 		)(?:\s|$)|
 		^(?:typedef|struct|enum)\b
 	    )}x;
@@ -1359,6 +1373,7 @@ sub process {
 	my %suppress_ifbraces;
 	my %suppress_whiletrailers;
 	my %suppress_export;
+	my $suppress_statement = 0;
 
 	# Pre-scan the patch sanitizing the lines.
 	# Pre-scan the patch looking for any __setup documentation.
@@ -1468,6 +1483,7 @@ sub process {
 			%suppress_ifbraces = ();
 			%suppress_whiletrailers = ();
 			%suppress_export = ();
+			$suppress_statement = 0;
 			next;
 
 # track the line number as we move through the hunk, note that
@@ -1504,9 +1520,11 @@ sub process {
 		if ($line =~ /^diff --git.*?(\S+)$/) {
 			$realfile = $1;
 			$realfile =~ s@^([^/]*)/@@;
+			$in_commit_log = 0;
 		} elsif ($line =~ /^\+\+\+\s+(\S+)/) {
 			$realfile = $1;
 			$realfile =~ s@^([^/]*)/@@;
+			$in_commit_log = 0;
 
 			$p1_prefix = $1;
 			if (!$file && $tree && $p1_prefix ne '' &&
@@ -1546,7 +1564,8 @@ sub process {
 		}
 
 # Check signature styles
-		if ($line =~ /^(\s*)($signature_tags)(\s*)(.*)/) {
+		if (!$in_header_lines &&
+		    $line =~ /^(\s*)($signature_tags)(\s*)(.*)/) {
 			my $space_before = $1;
 			my $sign_off = $2;
 			my $space_after = $3;
@@ -1623,7 +1642,7 @@ sub process {
 # Check if it's the start of a commit log
 # (not a header line and we haven't seen the patch filename)
 		if ($in_header_lines && $realfile =~ /^$/ &&
-		    $rawline !~ /^(commit\b|from\b|\w+:).+$/i) {
+		    $rawline !~ /^(commit\b|from\b|[\w-]+:).+$/i) {
 			$in_header_lines = 0;
 			$in_commit_log = 1;
 		}
@@ -1655,19 +1674,26 @@ sub process {
 # Only applies when adding the entry originally, after that we do not have
 # sufficient context to determine whether it is indeed long enough.
 		if ($realfile =~ /Kconfig/ &&
-		    $line =~ /\+\s*(?:---)?help(?:---)?$/) {
+		    $line =~ /.\s*config\s+/) {
 			my $length = 0;
 			my $cnt = $realcnt;
 			my $ln = $linenr + 1;
 			my $f;
+			my $is_start = 0;
 			my $is_end = 0;
-			while ($cnt > 0 && defined $lines[$ln - 1]) {
+			for (; $cnt > 0 && defined $lines[$ln - 1]; $ln++) {
 				$f = $lines[$ln - 1];
 				$cnt-- if ($lines[$ln - 1] !~ /^-/);
 				$is_end = $lines[$ln - 1] =~ /^\+/;
-				$ln++;
 
 				next if ($f =~ /^-/);
+
+				if ($lines[$ln - 1] =~ /.\s*(?:bool|tristate)\s*\"/) {
+					$is_start = 1;
+				} elsif ($lines[$ln - 1] =~ /.\s*(?:---)?help(?:---)?$/) {
+					$length = -1;
+				}
+
 				$f =~ s/^.//;
 				$f =~ s/#.*//;
 				$f =~ s/^\s+//;
@@ -1679,8 +1705,8 @@ sub process {
 				$length++;
 			}
 			WARN("CONFIG_DESCRIPTION",
-			     "please write a paragraph that describes the config symbol fully\n" . $herecurr) if ($is_end && $length < 4);
-			#print "is_end<$is_end> length<$length>\n";
+			     "please write a paragraph that describes the config symbol fully\n" . $herecurr) if ($is_start && $is_end && $length < 4);
+			#print "is_start<$is_start> is_end<$is_end> length<$length>\n";
 		}
 
 		if (($realfile =~ /Makefile.*/ || $realfile =~ /Kbuild.*/) &&
@@ -1792,12 +1818,24 @@ sub process {
 # Check for potential 'bare' types
 		my ($stat, $cond, $line_nr_next, $remain_next, $off_next,
 		    $realline_next);
-		if ($realcnt && $line =~ /.\s*\S/) {
+#print "LINE<$line>\n";
+		if ($linenr >= $suppress_statement &&
+		    $realcnt && $line =~ /.\s*\S/) {
 			($stat, $cond, $line_nr_next, $remain_next, $off_next) =
 				ctx_statement_block($linenr, $realcnt, 0);
 			$stat =~ s/\n./\n /g;
 			$cond =~ s/\n./\n /g;
 
+#print "linenr<$linenr> <$stat>\n";
+			# If this statement has no statement boundaries within
+			# it there is no point in retrying a statement scan
+			# until we hit end of it.
+			my $frag = $stat; $frag =~ s/;+\s*$//;
+			if ($frag !~ /(?:{|;)/) {
+#print "skip<$line_nr_next>\n";
+				$suppress_statement = $line_nr_next;
+			}
+
 			# Find the real next line.
 			$realline_next = $line_nr_next;
 			if (defined $realline_next &&
@@ -1923,6 +1961,9 @@ sub process {
 
 # Check relative indent for conditionals and blocks.
 		if ($line =~ /\b(?:(?:if|while|for)\s*\(|do\b)/ && $line !~ /^.\s*#/ && $line !~ /\}\s*while\s*/) {
+			($stat, $cond, $line_nr_next, $remain_next, $off_next) =
+				ctx_statement_block($linenr, $realcnt, 0)
+					if (!defined $stat);
 			my ($s, $c) = ($stat, $cond);
 
 			substr($s, 0, length($c), '');
@@ -2090,7 +2131,7 @@ sub process {
 			#   XXX(foo);
 			#   EXPORT_SYMBOL(something_foo);
 			my $name = $1;
-			if ($stat =~ /^.([A-Z_]+)\s*\(\s*($Ident)/ &&
+			if ($stat =~ /^(?:.\s*}\s*\n)?.([A-Z_]+)\s*\(\s*($Ident)/ &&
 			    $name =~ /^${Ident}_$2/) {
 #print "FOO C name<$name>\n";
 				$suppress_export{$realline_next} = 1;
@@ -2168,8 +2209,9 @@ sub process {
 
 # * goes on variable not on type
 		# (char*[ const])
-		if ($line =~ m{\($NonptrType(\s*(?:$Modifier\b\s*|\*\s*)+)\)}) {
-			my ($from, $to) = ($1, $1);
+		while ($line =~ m{(\($NonptrType(\s*(?:$Modifier\b\s*|\*\s*)+)\))}g) {
+			#print "AA<$1>\n";
+			my ($from, $to) = ($2, $2);
 
 			# Should start with a space.
 			$to =~ s/^(\S)/ $1/;
@@ -2184,8 +2226,10 @@ sub process {
 				ERROR("POINTER_LOCATION",
 				      "\"(foo$from)\" should be \"(foo$to)\"\n" .  $herecurr);
 			}
-		} elsif ($line =~ m{\b$NonptrType(\s*(?:$Modifier\b\s*|\*\s*)+)($Ident)}) {
-			my ($from, $to, $ident) = ($1, $1, $2);
+		}
+		while ($line =~ m{(\b$NonptrType(\s*(?:$Modifier\b\s*|\*\s*)+)($Ident))}g) {
+			#print "BB<$1>\n";
+			my ($from, $to, $ident) = ($2, $2, $3);
 
 			# Should start with a space.
 			$to =~ s/^(\S)/ $1/;
@@ -2568,7 +2612,7 @@ sub process {
 			# Flatten any parentheses
 			$value =~ s/\(/ \(/g;
 			$value =~ s/\)/\) /g;
-			while ($value =~ s/\[[^\{\}]*\]/1/ ||
+			while ($value =~ s/\[[^\[\]]*\]/1/ ||
 			       $value !~ /(?:$Ident|-?$Constant)\s*
 					     $Compare\s*
 					     (?:$Ident|-?$Constant)/x &&
@@ -2593,28 +2637,6 @@ sub process {
 			}
 		}
 
-# typecasts on min/max could be min_t/max_t
-		if ($line =~ /^\+(?:.*?)\b(min|max)\s*\($Typecast{0,1}($LvalOrFunc)\s*,\s*$Typecast{0,1}($LvalOrFunc)\s*\)/) {
-			if (defined $2 || defined $8) {
-				my $call = $1;
-				my $cast1 = deparenthesize($2);
-				my $arg1 = $3;
-				my $cast2 = deparenthesize($8);
-				my $arg2 = $9;
-				my $cast;
-
-				if ($cast1 ne "" && $cast2 ne "") {
-					$cast = "$cast1 or $cast2";
-				} elsif ($cast1 ne "") {
-					$cast = $cast1;
-				} else {
-					$cast = $cast2;
-				}
-				WARN("MINMAX",
-				     "$call() should probably be ${call}_t($cast, $arg1, $arg2)\n" . $herecurr);
-			}
-		}
-
 # Need a space before open parenthesis after if, while etc
 		if ($line=~/\b(if|while|for|switch)\(/) {
 			ERROR("SPACING", "space required before the open parenthesis '('\n" . $herecurr);
@@ -2623,6 +2645,9 @@ sub process {
 # Check for illegal assignment in if conditional -- and check for trailing
 # statements after the conditional.
 		if ($line =~ /do\s*(?!{)/) {
+			($stat, $cond, $line_nr_next, $remain_next, $off_next) =
+				ctx_statement_block($linenr, $realcnt, 0)
+					if (!defined $stat);
 			my ($stat_next) = ctx_statement_block($line_nr_next,
 						$remain_next, $off_next);
 			$stat_next =~ s/\n./\n /g;
@@ -2778,47 +2803,13 @@ sub process {
 			my $cnt = $realcnt;
 			my ($off, $dstat, $dcond, $rest);
 			my $ctx = '';
-
-			my $args = defined($1);
-
-			# Find the end of the macro and limit our statement
-			# search to that.
-			while ($cnt > 0 && defined $lines[$ln - 1] &&
-				$lines[$ln - 1] =~ /^(?:-|..*\\$)/)
-			{
-				$ctx .= $rawlines[$ln - 1] . "\n";
-				$cnt-- if ($lines[$ln - 1] !~ /^-/);
-				$ln++;
-			}
-			$ctx .= $rawlines[$ln - 1];
-
 			($dstat, $dcond, $ln, $cnt, $off) =
-				ctx_statement_block($linenr, $ln - $linenr + 1, 0);
+				ctx_statement_block($linenr, $realcnt, 0);
+			$ctx = $dstat;
 			#print "dstat<$dstat> dcond<$dcond> cnt<$cnt> off<$off>\n";
 			#print "LINE<$lines[$ln-1]> len<" . length($lines[$ln-1]) . "\n";
 
-			# Extract the remainder of the define (if any) and
-			# rip off surrounding spaces, and trailing \'s.
-			$rest = '';
-			while ($off != 0 || ($cnt > 0 && $rest =~ /\\\s*$/)) {
-				#print "ADDING cnt<$cnt> $off <" . substr($lines[$ln - 1], $off) . "> rest<$rest>\n";
-				if ($off != 0 || $lines[$ln - 1] !~ /^-/) {
-					$rest .= substr($lines[$ln - 1], $off) . "\n";
-					$cnt--;
-				}
-				$ln++;
-				$off = 0;
-			}
-			$rest =~ s/\\\n.//g;
-			$rest =~ s/^\s*//s;
-			$rest =~ s/\s*$//s;
-
-			# Clean up the original statement.
-			if ($args) {
-				substr($dstat, 0, length($dcond), '');
-			} else {
-				$dstat =~ s/^.\s*\#\s*define\s+$Ident\s*//;
-			}
+			$dstat =~ s/^.\s*\#\s*define\s+$Ident(?:\([^\)]*\))?\s*//;
 			$dstat =~ s/$;//g;
 			$dstat =~ s/\\\n.//g;
 			$dstat =~ s/^\s*//s;
@@ -2827,7 +2818,7 @@ sub process {
 			# Flatten any parentheses and braces
 			while ($dstat =~ s/\([^\(\)]*\)/1/ ||
 			       $dstat =~ s/\{[^\{\}]*\}/1/ ||
-			       $dstat =~ s/\[[^\{\}]*\]/1/)
+			       $dstat =~ s/\[[^\[\]]*\]/1/)
 			{
 			}
 
@@ -2844,23 +2835,32 @@ sub process {
 				^\"|\"$
 			}x;
 			#print "REST<$rest> dstat<$dstat> ctx<$ctx>\n";
-			if ($rest ne '' && $rest ne ',') {
-				if ($rest !~ /while\s*\(/ &&
-				    $dstat !~ /$exceptions/)
-				{
-					ERROR("MULTISTATEMENT_MACRO_USE_DO_WHILE",
-					      "Macros with multiple statements should be enclosed in a do - while loop\n" . "$here\n$ctx\n");
+			if ($dstat ne '' &&
+			    $dstat !~ /^(?:$Ident|-?$Constant),$/ &&			# 10, // foo(),
+			    $dstat !~ /^(?:$Ident|-?$Constant);$/ &&			# foo();
+			    $dstat !~ /^(?:$Ident|-?$Constant)$/ &&			# 10 // foo()
+			    $dstat !~ /$exceptions/ &&
+			    $dstat !~ /^\.$Ident\s*=/ &&				# .foo =
+			    $dstat !~ /^do\s*$Constant\s*while\s*$Constant;?$/ &&	# do {...} while (...); // do {...} while (...)
+			    $dstat !~ /^for\s*$Constant$/ &&				# for (...)
+			    $dstat !~ /^for\s*$Constant\s+(?:$Ident|-?$Constant)$/ &&	# for (...) bar()
+			    $dstat !~ /^do\s*{/ &&					# do {...
+			    $dstat !~ /^\({/)						# ({...
+			{
+				$ctx =~ s/\n*$//;
+				my $herectx = $here . "\n";
+				my $cnt = statement_rawlines($ctx);
+
+				for (my $n = 0; $n < $cnt; $n++) {
+					$herectx .= raw_line($linenr, $n) . "\n";
 				}
 
-			} elsif ($ctx !~ /;/) {
-				if ($dstat ne '' &&
-				    $dstat !~ /^(?:$Ident|-?$Constant)$/ &&
-				    $dstat !~ /$exceptions/ &&
-				    $dstat !~ /^\.$Ident\s*=/ &&
-				    $dstat =~ /$Operators/)
-				{
+				if ($dstat =~ /;/) {
+					ERROR("MULTISTATEMENT_MACRO_USE_DO_WHILE",
+					      "Macros with multiple statements should be enclosed in a do - while loop\n" . "$herectx");
+				} else {
 					ERROR("COMPLEX_MACRO",
-					      "Macros with complex values should be enclosed in parenthesis\n" . "$here\n$ctx\n");
+					      "Macros with complex values should be enclosed in parenthesis\n" . "$herectx");
 				}
 			}
 		}
@@ -3111,6 +3111,12 @@ sub process {
 			     "__aligned(size) is preferred over __attribute__((aligned(size)))\n" . $herecurr);
 		}
 
+# Check for __attribute__ format(printf, prefer __printf
+		if ($line =~ /\b__attribute__\s*\(\s*\(\s*format\s*\(\s*printf/) {
+			WARN("PREFER_PRINTF",
+			     "__printf(string-index, first-to-check) is preferred over __attribute__((format(printf, string-index, first-to-check)))\n" . $herecurr);
+		}
+
 # check for sizeof(&)
 		if ($line =~ /\bsizeof\s*\(\s*\&/) {
 			WARN("SIZEOF_ADDRESS",
@@ -3123,6 +3129,46 @@ sub process {
 			     "Avoid line continuations in quoted strings\n" . $herecurr);
 		}
 
+# Check for misused memsets
+		if (defined $stat &&
+		    $stat =~ /^\+(?:.*?)\bmemset\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*\,\s*$FuncArg\s*\)/s) {
+
+			my $ms_addr = $2;
+			my $ms_val = $8;
+			my $ms_size = $14;
+
+			if ($ms_size =~ /^(0x|)0$/i) {
+				ERROR("MEMSET",
+				      "memset to 0's uses 0 as the 2nd argument, not the 3rd\n" . "$here\n$stat\n");
+			} elsif ($ms_size =~ /^(0x|)1$/i) {
+				WARN("MEMSET",
+				     "single byte memset is suspicious. Swapped 2nd/3rd argument?\n" . "$here\n$stat\n");
+			}
+		}
+
+# typecasts on min/max could be min_t/max_t
+		if (defined $stat &&
+		    $stat =~ /^\+(?:.*?)\b(min|max)\s*\(\s*$FuncArg\s*,\s*$FuncArg\s*\)/) {
+			if (defined $2 || defined $8) {
+				my $call = $1;
+				my $cast1 = deparenthesize($2);
+				my $arg1 = $3;
+				my $cast2 = deparenthesize($8);
+				my $arg2 = $9;
+				my $cast;
+
+				if ($cast1 ne "" && $cast2 ne "") {
+					$cast = "$cast1 or $cast2";
+				} elsif ($cast1 ne "") {
+					$cast = $cast1;
+				} else {
+					$cast = $cast2;
+				}
+				WARN("MINMAX",
+				     "$call() should probably be ${call}_t($cast, $arg1, $arg2)\n" . "$here\n$stat\n");
+			}
+		}
+
 # check for new externs in .c files.
 		if ($realfile =~ /\.c$/ && defined $stat &&
 		    $stat =~ /^.\s*(?:extern\s+)?$Type\s+($Ident)(\s*)\(/s)
@@ -3294,12 +3340,6 @@ sub process {
 			WARN("EXPORTED_WORLD_WRITABLE",
 			     "Exporting world writable files is usually an error. Consider more restrictive permissions.\n" . $herecurr);
 		}
-
-		# Check for memset with swapped arguments
-		if ($line =~ /memset.*\,(\ |)(0x|)0(\ |0|)\);/) {
-			ERROR("MEMSET",
-			      "memset size is 3rd argument, not the second.\n" . $herecurr);
-		}
 	}
 
 	# If we have no input at all, then there is nothing to report on
diff --git a/scripts/get_maintainer.pl b/scripts/get_maintainer.pl
index 4594f3341051..f32a04c4c5bc 100755
--- a/scripts/get_maintainer.pl
+++ b/scripts/get_maintainer.pl
@@ -95,7 +95,7 @@ my %VCS_cmds_git = (
     "execute_cmd" => \&git_execute_cmd,
     "available" => '(which("git") ne "") && (-d ".git")',
     "find_signers_cmd" =>
-	"git log --no-color --since=\$email_git_since " .
+	"git log --no-color --follow --since=\$email_git_since " .
 	    '--format="GitCommit: %H%n' .
 		      'GitAuthor: %an <%ae>%n' .
 		      'GitDate: %aD%n' .
diff --git a/security/device_cgroup.c b/security/device_cgroup.c
index 4450fbeec411..8b5b5d8612c6 100644
--- a/security/device_cgroup.c
+++ b/security/device_cgroup.c
@@ -62,11 +62,12 @@ static inline struct dev_cgroup *task_devcgroup(struct task_struct *task)
 struct cgroup_subsys devices_subsys;
 
 static int devcgroup_can_attach(struct cgroup_subsys *ss,
-		struct cgroup *new_cgroup, struct task_struct *task)
+			struct cgroup *new_cgrp, struct cgroup_taskset *set)
 {
-	if (current != task && !capable(CAP_SYS_ADMIN))
-			return -EPERM;
+	struct task_struct *task = cgroup_taskset_first(set);
 
+	if (current != task && !capable(CAP_SYS_ADMIN))
+		return -EPERM;
 	return 0;
 }
 
diff --git a/sound/soc/codecs/sgtl5000.c b/sound/soc/codecs/sgtl5000.c
index bbcf921166f7..f6b6551940ab 100644
--- a/sound/soc/codecs/sgtl5000.c
+++ b/sound/soc/codecs/sgtl5000.c
@@ -833,7 +833,7 @@ static int ldo_regulator_register(struct snd_soc_codec *codec,
 	ldo->voltage = voltage;
 
 	ldo->dev = regulator_register(&ldo->desc, codec->dev,
-					  init_data, ldo);
+					  init_data, ldo, NULL);
 	if (IS_ERR(ldo->dev)) {
 		int ret = PTR_ERR(ldo->dev);
 
diff --git a/sound/soc/kirkwood/kirkwood-dma.c b/sound/soc/kirkwood/kirkwood-dma.c
index cd33de1c5b7a..df12e0993f5a 100644
--- a/sound/soc/kirkwood/kirkwood-dma.c
+++ b/sound/soc/kirkwood/kirkwood-dma.c
@@ -94,9 +94,10 @@ static irqreturn_t kirkwood_dma_irq(int irq, void *dev_id)
 	return IRQ_HANDLED;
 }
 
-static void kirkwood_dma_conf_mbus_windows(void __iomem *base, int win,
-					unsigned long dma,
-					struct mbus_dram_target_info *dram)
+static void
+kirkwood_dma_conf_mbus_windows(void __iomem *base, int win,
+			       unsigned long dma,
+			       const struct mbus_dram_target_info *dram)
 {
 	int i;
 
@@ -106,7 +107,7 @@ static void kirkwood_dma_conf_mbus_windows(void __iomem *base, int win,
 
 	/* try to find matching cs for current dma address */
 	for (i = 0; i < dram->num_cs; i++) {
-		struct mbus_dram_window *cs = dram->cs + i;
+		const struct mbus_dram_window *cs = dram->cs + i;
 		if ((cs->base & 0xffff0000) < (dma & 0xffff0000)) {
 			writel(cs->base & 0xffff0000,
 				base + KIRKWOOD_AUDIO_WIN_BASE_REG(win));
@@ -127,6 +128,7 @@ static int kirkwood_dma_open(struct snd_pcm_substream *substream)
 	struct snd_soc_dai *cpu_dai = soc_runtime->cpu_dai;
 	struct kirkwood_dma_data *priv;
 	struct kirkwood_dma_priv *prdata = snd_soc_platform_get_drvdata(platform);
+	const struct mbus_dram_target_info *dram;
 	unsigned long addr;
 
 	priv = snd_soc_dai_get_dma_data(cpu_dai, substream);
@@ -175,15 +177,16 @@ static int kirkwood_dma_open(struct snd_pcm_substream *substream)
 		writel((unsigned long)-1, priv->io + KIRKWOOD_ERR_MASK);
 	}
 
+	dram = mv_mbus_dram_info();
 	addr = virt_to_phys(substream->dma_buffer.area);
 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
 		prdata->play_stream = substream;
 		kirkwood_dma_conf_mbus_windows(priv->io,
-			KIRKWOOD_PLAYBACK_WIN, addr, priv->dram);
+			KIRKWOOD_PLAYBACK_WIN, addr, dram);
 	} else {
 		prdata->rec_stream = substream;
 		kirkwood_dma_conf_mbus_windows(priv->io,
-			KIRKWOOD_RECORD_WIN, addr, priv->dram);
+			KIRKWOOD_RECORD_WIN, addr, dram);
 	}
 
 	return 0;
diff --git a/sound/soc/mxs/mxs-saif.c b/sound/soc/mxs/mxs-saif.c
index 76dc74d24fc2..d775b0761e0a 100644
--- a/sound/soc/mxs/mxs-saif.c
+++ b/sound/soc/mxs/mxs-saif.c
@@ -210,7 +210,7 @@ int mxs_saif_put_mclk(unsigned int saif_id)
 		return -EBUSY;
 	}
 
-	clk_disable(saif->clk);
+	clk_disable_unprepare(saif->clk);
 
 	/* disable MCLK output */
 	__raw_writel(BM_SAIF_CTRL_CLKGATE,
@@ -264,7 +264,7 @@ int mxs_saif_get_mclk(unsigned int saif_id, unsigned int mclk,
 	if (ret)
 		return ret;
 
-	ret = clk_enable(saif->clk);
+	ret = clk_prepare_enable(saif->clk);
 	if (ret)
 		return ret;
 
@@ -625,13 +625,6 @@ static int mxs_saif_probe(struct platform_device *pdev)
 	if (pdev->id >= ARRAY_SIZE(mxs_saif))
 		return -EINVAL;
 
-	pdata = pdev->dev.platform_data;
-	if (pdata && pdata->init) {
-		ret = pdata->init();
-		if (ret)
-			return ret;
-	}
-
 	saif = kzalloc(sizeof(*saif), GFP_KERNEL);
 	if (!saif)
 		return -ENOMEM;
@@ -639,12 +632,17 @@ static int mxs_saif_probe(struct platform_device *pdev)
 	mxs_saif[pdev->id] = saif;
 	saif->id = pdev->id;
 
-	saif->master_id = saif->id;
-	if (pdata && pdata->get_master_id) {
-		saif->master_id = pdata->get_master_id(saif->id);
+	pdata = pdev->dev.platform_data;
+	if (pdata && !pdata->master_mode) {
+		saif->master_id = pdata->master_id;
 		if (saif->master_id < 0 ||
-			saif->master_id >= ARRAY_SIZE(mxs_saif))
+			saif->master_id >= ARRAY_SIZE(mxs_saif) ||
+			saif->master_id == saif->id) {
+			dev_err(&pdev->dev, "get wrong master id\n");
 			return -EINVAL;
+		}
+	} else {
+		saif->master_id = saif->id;
 	}
 
 	saif->clk = clk_get(&pdev->dev, NULL);
diff --git a/tools/perf/Documentation/examples.txt b/tools/perf/Documentation/examples.txt
index 8eb6c489fb15..77f952762426 100644
--- a/tools/perf/Documentation/examples.txt
+++ b/tools/perf/Documentation/examples.txt
@@ -17,8 +17,8 @@ titan:~> perf list
   kmem:kmem_cache_alloc_node               [Tracepoint event]
   kmem:kfree                               [Tracepoint event]
   kmem:kmem_cache_free                     [Tracepoint event]
-  kmem:mm_page_free_direct                 [Tracepoint event]
-  kmem:mm_pagevec_free                     [Tracepoint event]
+  kmem:mm_page_free                        [Tracepoint event]
+  kmem:mm_page_free_batched                [Tracepoint event]
   kmem:mm_page_alloc                       [Tracepoint event]
   kmem:mm_page_alloc_zone_locked           [Tracepoint event]
   kmem:mm_page_pcpu_drain                  [Tracepoint event]
@@ -29,15 +29,15 @@ measured. For example the page alloc/free properties of a 'hackbench
 run' are:
 
  titan:~> perf stat -e kmem:mm_page_pcpu_drain -e kmem:mm_page_alloc
- -e kmem:mm_pagevec_free -e kmem:mm_page_free_direct ./hackbench 10
+ -e kmem:mm_page_free_batched -e kmem:mm_page_free ./hackbench 10
  Time: 0.575
 
  Performance counter stats for './hackbench 10':
 
           13857  kmem:mm_page_pcpu_drain
           27576  kmem:mm_page_alloc
-           6025  kmem:mm_pagevec_free
-          20934  kmem:mm_page_free_direct
+           6025  kmem:mm_page_free_batched
+          20934  kmem:mm_page_free
 
     0.613972165  seconds time elapsed
 
@@ -45,8 +45,8 @@ You can observe the statistical properties as well, by using the
 'repeat the workload N times' feature of perf stat:
 
  titan:~> perf stat --repeat 5 -e kmem:mm_page_pcpu_drain -e
-   kmem:mm_page_alloc -e kmem:mm_pagevec_free -e
-   kmem:mm_page_free_direct ./hackbench 10
+   kmem:mm_page_alloc -e kmem:mm_page_free_batched -e
+   kmem:mm_page_free ./hackbench 10
  Time: 0.627
  Time: 0.644
  Time: 0.564
@@ -57,8 +57,8 @@ You can observe the statistical properties as well, by using the
 
           12920  kmem:mm_page_pcpu_drain    ( +-   3.359% )
           25035  kmem:mm_page_alloc         ( +-   3.783% )
-           6104  kmem:mm_pagevec_free       ( +-   0.934% )
-          18376  kmem:mm_page_free_direct   ( +-   4.941% )
+           6104  kmem:mm_page_free_batched  ( +-   0.934% )
+          18376  kmem:mm_page_free	    ( +-   4.941% )
 
     0.643954516  seconds time elapsed   ( +-   2.363% )
 
@@ -158,15 +158,15 @@ Or you can observe the whole system's page allocations for 10
 seconds:
 
 titan:~/git> perf stat -a -e kmem:mm_page_pcpu_drain -e
-kmem:mm_page_alloc -e kmem:mm_pagevec_free -e
-kmem:mm_page_free_direct sleep 10
+kmem:mm_page_alloc -e kmem:mm_page_free_batched -e
+kmem:mm_page_free sleep 10
 
  Performance counter stats for 'sleep 10':
 
          171585  kmem:mm_page_pcpu_drain
          322114  kmem:mm_page_alloc
-          73623  kmem:mm_pagevec_free
-         254115  kmem:mm_page_free_direct
+          73623  kmem:mm_page_free_batched
+         254115  kmem:mm_page_free
 
    10.000591410  seconds time elapsed
 
@@ -174,15 +174,15 @@ Or observe how fluctuating the page allocations are, via statistical
 analysis done over ten 1-second intervals:
 
  titan:~/git> perf stat --repeat 10 -a -e kmem:mm_page_pcpu_drain -e
-   kmem:mm_page_alloc -e kmem:mm_pagevec_free -e
-   kmem:mm_page_free_direct sleep 1
+   kmem:mm_page_alloc -e kmem:mm_page_free_batched -e
+   kmem:mm_page_free sleep 1
 
  Performance counter stats for 'sleep 1' (10 runs):
 
           17254  kmem:mm_page_pcpu_drain    ( +-   3.709% )
           34394  kmem:mm_page_alloc         ( +-   4.617% )
-           7509  kmem:mm_pagevec_free       ( +-   4.820% )
-          25653  kmem:mm_page_free_direct   ( +-   3.672% )
+           7509  kmem:mm_page_free_batched  ( +-   4.820% )
+          25653  kmem:mm_page_free	    ( +-   3.672% )
 
     1.058135029  seconds time elapsed   ( +-   3.089% )
 
diff --git a/virt/kvm/coalesced_mmio.c b/virt/kvm/coalesced_mmio.c
index a6ec206f36ba..88b2fe3ddf42 100644
--- a/virt/kvm/coalesced_mmio.c
+++ b/virt/kvm/coalesced_mmio.c
@@ -28,9 +28,15 @@ static int coalesced_mmio_in_range(struct kvm_coalesced_mmio_dev *dev,
 	 * (addr,len) is fully included in
 	 * (zone->addr, zone->size)
 	 */
-
-	return (dev->zone.addr <= addr &&
-		addr + len <= dev->zone.addr + dev->zone.size);
+	if (len < 0)
+		return 0;
+	if (addr + len < addr)
+		return 0;
+	if (addr < dev->zone.addr)
+		return 0;
+	if (addr + len > dev->zone.addr + dev->zone.size)
+		return 0;
+	return 1;
 }
 
 static int coalesced_mmio_has_room(struct kvm_coalesced_mmio_dev *dev)
diff --git a/virt/kvm/ioapic.c b/virt/kvm/ioapic.c
index 3eed61eb4867..dcaf272c26c0 100644
--- a/virt/kvm/ioapic.c
+++ b/virt/kvm/ioapic.c
@@ -185,7 +185,7 @@ static int ioapic_deliver(struct kvm_ioapic *ioapic, int irq)
 		irqe.dest_mode = 0; /* Physical mode. */
 		/* need to read apic_id from apic regiest since
 		 * it can be rewritten */
-		irqe.dest_id = ioapic->kvm->bsp_vcpu->vcpu_id;
+		irqe.dest_id = ioapic->kvm->bsp_vcpu_id;
 	}
 #endif
 	return kvm_irq_delivery_to_apic(ioapic->kvm, NULL, &irqe);
@@ -332,9 +332,18 @@ static int ioapic_mmio_write(struct kvm_io_device *this, gpa_t addr, int len,
 		     (void*)addr, len, val);
 	ASSERT(!(addr & 0xf));	/* check alignment */
 
-	if (len == 4 || len == 8)
+	switch (len) {
+	case 8:
+	case 4:
 		data = *(u32 *) val;
-	else {
+		break;
+	case 2:
+		data = *(u16 *) val;
+		break;
+	case 1:
+		data = *(u8  *) val;
+		break;
+	default:
 		printk(KERN_WARNING "ioapic: Unsupported size %d\n", len);
 		return 0;
 	}
@@ -343,7 +352,7 @@ static int ioapic_mmio_write(struct kvm_io_device *this, gpa_t addr, int len,
 	spin_lock(&ioapic->lock);
 	switch (addr) {
 	case IOAPIC_REG_SELECT:
-		ioapic->ioregsel = data;
+		ioapic->ioregsel = data & 0xFF; /* 8-bit register */
 		break;
 
 	case IOAPIC_REG_WINDOW:
diff --git a/virt/kvm/iommu.c b/virt/kvm/iommu.c
index a195c07fa829..0fb448e6a1a3 100644
--- a/virt/kvm/iommu.c
+++ b/virt/kvm/iommu.c
@@ -113,7 +113,7 @@ int kvm_iommu_map_pages(struct kvm *kvm, struct kvm_memory_slot *slot)
 
 		/* Map into IO address space */
 		r = iommu_map(domain, gfn_to_gpa(gfn), pfn_to_hpa(pfn),
-			      get_order(page_size), flags);
+			      page_size, flags);
 		if (r) {
 			printk(KERN_ERR "kvm_iommu_map_address:"
 			       "iommu failed to map pfn=%llx\n", pfn);
@@ -134,14 +134,15 @@ unmap_pages:
 
 static int kvm_iommu_map_memslots(struct kvm *kvm)
 {
-	int i, idx, r = 0;
+	int idx, r = 0;
 	struct kvm_memslots *slots;
+	struct kvm_memory_slot *memslot;
 
 	idx = srcu_read_lock(&kvm->srcu);
 	slots = kvm_memslots(kvm);
 
-	for (i = 0; i < slots->nmemslots; i++) {
-		r = kvm_iommu_map_pages(kvm, &slots->memslots[i]);
+	kvm_for_each_memslot(memslot, slots) {
+		r = kvm_iommu_map_pages(kvm, memslot);
 		if (r)
 			break;
 	}
@@ -292,15 +293,15 @@ static void kvm_iommu_put_pages(struct kvm *kvm,
 
 	while (gfn < end_gfn) {
 		unsigned long unmap_pages;
-		int order;
+		size_t size;
 
 		/* Get physical address */
 		phys = iommu_iova_to_phys(domain, gfn_to_gpa(gfn));
 		pfn  = phys >> PAGE_SHIFT;
 
 		/* Unmap address from IO address space */
-		order       = iommu_unmap(domain, gfn_to_gpa(gfn), 0);
-		unmap_pages = 1ULL << order;
+		size       = iommu_unmap(domain, gfn_to_gpa(gfn), PAGE_SIZE);
+		unmap_pages = 1ULL << get_order(size);
 
 		/* Unpin all pages we just unmapped to not leak any memory */
 		kvm_unpin_pages(kvm, pfn, unmap_pages);
@@ -311,16 +312,16 @@ static void kvm_iommu_put_pages(struct kvm *kvm,
 
 static int kvm_iommu_unmap_memslots(struct kvm *kvm)
 {
-	int i, idx;
+	int idx;
 	struct kvm_memslots *slots;
+	struct kvm_memory_slot *memslot;
 
 	idx = srcu_read_lock(&kvm->srcu);
 	slots = kvm_memslots(kvm);
 
-	for (i = 0; i < slots->nmemslots; i++) {
-		kvm_iommu_put_pages(kvm, slots->memslots[i].base_gfn,
-				    slots->memslots[i].npages);
-	}
+	kvm_for_each_memslot(memslot, slots)
+		kvm_iommu_put_pages(kvm, memslot->base_gfn, memslot->npages);
+
 	srcu_read_unlock(&kvm->srcu, idx);
 
 	return 0;
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index d9cfb782cb81..7287bf5d1c9e 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -440,6 +440,15 @@ static int kvm_init_mmu_notifier(struct kvm *kvm)
 
 #endif /* CONFIG_MMU_NOTIFIER && KVM_ARCH_WANT_MMU_NOTIFIER */
 
+static void kvm_init_memslots_id(struct kvm *kvm)
+{
+	int i;
+	struct kvm_memslots *slots = kvm->memslots;
+
+	for (i = 0; i < KVM_MEM_SLOTS_NUM; i++)
+		slots->id_to_index[i] = slots->memslots[i].id = i;
+}
+
 static struct kvm *kvm_create_vm(void)
 {
 	int r, i;
@@ -465,6 +474,7 @@ static struct kvm *kvm_create_vm(void)
 	kvm->memslots = kzalloc(sizeof(struct kvm_memslots), GFP_KERNEL);
 	if (!kvm->memslots)
 		goto out_err_nosrcu;
+	kvm_init_memslots_id(kvm);
 	if (init_srcu_struct(&kvm->srcu))
 		goto out_err_nosrcu;
 	for (i = 0; i < KVM_NR_BUSES; i++) {
@@ -547,11 +557,11 @@ static void kvm_free_physmem_slot(struct kvm_memory_slot *free,
 
 void kvm_free_physmem(struct kvm *kvm)
 {
-	int i;
 	struct kvm_memslots *slots = kvm->memslots;
+	struct kvm_memory_slot *memslot;
 
-	for (i = 0; i < slots->nmemslots; ++i)
-		kvm_free_physmem_slot(&slots->memslots[i], NULL);
+	kvm_for_each_memslot(memslot, slots)
+		kvm_free_physmem_slot(memslot, NULL);
 
 	kfree(kvm->memslots);
 }
@@ -625,10 +635,69 @@ static int kvm_create_dirty_bitmap(struct kvm_memory_slot *memslot)
 		return -ENOMEM;
 
 	memslot->dirty_bitmap_head = memslot->dirty_bitmap;
+	memslot->nr_dirty_pages = 0;
 	return 0;
 }
 #endif /* !CONFIG_S390 */
 
+static struct kvm_memory_slot *
+search_memslots(struct kvm_memslots *slots, gfn_t gfn)
+{
+	struct kvm_memory_slot *memslot;
+
+	kvm_for_each_memslot(memslot, slots)
+		if (gfn >= memslot->base_gfn &&
+		      gfn < memslot->base_gfn + memslot->npages)
+			return memslot;
+
+	return NULL;
+}
+
+static int cmp_memslot(const void *slot1, const void *slot2)
+{
+	struct kvm_memory_slot *s1, *s2;
+
+	s1 = (struct kvm_memory_slot *)slot1;
+	s2 = (struct kvm_memory_slot *)slot2;
+
+	if (s1->npages < s2->npages)
+		return 1;
+	if (s1->npages > s2->npages)
+		return -1;
+
+	return 0;
+}
+
+/*
+ * Sort the memslots base on its size, so the larger slots
+ * will get better fit.
+ */
+static void sort_memslots(struct kvm_memslots *slots)
+{
+	int i;
+
+	sort(slots->memslots, KVM_MEM_SLOTS_NUM,
+	      sizeof(struct kvm_memory_slot), cmp_memslot, NULL);
+
+	for (i = 0; i < KVM_MEM_SLOTS_NUM; i++)
+		slots->id_to_index[slots->memslots[i].id] = i;
+}
+
+void update_memslots(struct kvm_memslots *slots, struct kvm_memory_slot *new)
+{
+	if (new) {
+		int id = new->id;
+		struct kvm_memory_slot *old = id_to_memslot(slots, id);
+		unsigned long npages = old->npages;
+
+		*old = *new;
+		if (new->npages != npages)
+			sort_memslots(slots);
+	}
+
+	slots->generation++;
+}
+
 /*
  * Allocate some memory and give it an address in the guest physical address
  * space.
@@ -662,12 +731,12 @@ int __kvm_set_memory_region(struct kvm *kvm,
 			(void __user *)(unsigned long)mem->userspace_addr,
 			mem->memory_size)))
 		goto out;
-	if (mem->slot >= KVM_MEMORY_SLOTS + KVM_PRIVATE_MEM_SLOTS)
+	if (mem->slot >= KVM_MEM_SLOTS_NUM)
 		goto out;
 	if (mem->guest_phys_addr + mem->memory_size < mem->guest_phys_addr)
 		goto out;
 
-	memslot = &kvm->memslots->memslots[mem->slot];
+	memslot = id_to_memslot(kvm->memslots, mem->slot);
 	base_gfn = mem->guest_phys_addr >> PAGE_SHIFT;
 	npages = mem->memory_size >> PAGE_SHIFT;
 
@@ -774,15 +843,17 @@ skip_lpage:
 #endif /* not defined CONFIG_S390 */
 
 	if (!npages) {
+		struct kvm_memory_slot *slot;
+
 		r = -ENOMEM;
-		slots = kzalloc(sizeof(struct kvm_memslots), GFP_KERNEL);
+		slots = kmemdup(kvm->memslots, sizeof(struct kvm_memslots),
+				GFP_KERNEL);
 		if (!slots)
 			goto out_free;
-		memcpy(slots, kvm->memslots, sizeof(struct kvm_memslots));
-		if (mem->slot >= slots->nmemslots)
-			slots->nmemslots = mem->slot + 1;
-		slots->generation++;
-		slots->memslots[mem->slot].flags |= KVM_MEMSLOT_INVALID;
+		slot = id_to_memslot(slots, mem->slot);
+		slot->flags |= KVM_MEMSLOT_INVALID;
+
+		update_memslots(slots, NULL);
 
 		old_memslots = kvm->memslots;
 		rcu_assign_pointer(kvm->memslots, slots);
@@ -810,13 +881,10 @@ skip_lpage:
 	}
 
 	r = -ENOMEM;
-	slots = kzalloc(sizeof(struct kvm_memslots), GFP_KERNEL);
+	slots = kmemdup(kvm->memslots, sizeof(struct kvm_memslots),
+			GFP_KERNEL);
 	if (!slots)
 		goto out_free;
-	memcpy(slots, kvm->memslots, sizeof(struct kvm_memslots));
-	if (mem->slot >= slots->nmemslots)
-		slots->nmemslots = mem->slot + 1;
-	slots->generation++;
 
 	/* actual memory is freed via old in kvm_free_physmem_slot below */
 	if (!npages) {
@@ -826,7 +894,7 @@ skip_lpage:
 			new.lpage_info[i] = NULL;
 	}
 
-	slots->memslots[mem->slot] = new;
+	update_memslots(slots, &new);
 	old_memslots = kvm->memslots;
 	rcu_assign_pointer(kvm->memslots, slots);
 	synchronize_srcu_expedited(&kvm->srcu);
@@ -888,7 +956,7 @@ int kvm_get_dirty_log(struct kvm *kvm,
 	if (log->slot >= KVM_MEMORY_SLOTS)
 		goto out;
 
-	memslot = &kvm->memslots->memslots[log->slot];
+	memslot = id_to_memslot(kvm->memslots, log->slot);
 	r = -ENOENT;
 	if (!memslot->dirty_bitmap)
 		goto out;
@@ -966,16 +1034,7 @@ EXPORT_SYMBOL_GPL(kvm_is_error_hva);
 static struct kvm_memory_slot *__gfn_to_memslot(struct kvm_memslots *slots,
 						gfn_t gfn)
 {
-	int i;
-
-	for (i = 0; i < slots->nmemslots; ++i) {
-		struct kvm_memory_slot *memslot = &slots->memslots[i];
-
-		if (gfn >= memslot->base_gfn
-		    && gfn < memslot->base_gfn + memslot->npages)
-			return memslot;
-	}
-	return NULL;
+	return search_memslots(slots, gfn);
 }
 
 struct kvm_memory_slot *gfn_to_memslot(struct kvm *kvm, gfn_t gfn)
@@ -986,20 +1045,13 @@ EXPORT_SYMBOL_GPL(gfn_to_memslot);
 
 int kvm_is_visible_gfn(struct kvm *kvm, gfn_t gfn)
 {
-	int i;
-	struct kvm_memslots *slots = kvm_memslots(kvm);
+	struct kvm_memory_slot *memslot = gfn_to_memslot(kvm, gfn);
 
-	for (i = 0; i < KVM_MEMORY_SLOTS; ++i) {
-		struct kvm_memory_slot *memslot = &slots->memslots[i];
-
-		if (memslot->flags & KVM_MEMSLOT_INVALID)
-			continue;
+	if (!memslot || memslot->id >= KVM_MEMORY_SLOTS ||
+	      memslot->flags & KVM_MEMSLOT_INVALID)
+		return 0;
 
-		if (gfn >= memslot->base_gfn
-		    && gfn < memslot->base_gfn + memslot->npages)
-			return 1;
-	}
-	return 0;
+	return 1;
 }
 EXPORT_SYMBOL_GPL(kvm_is_visible_gfn);
 
@@ -1491,7 +1543,8 @@ void mark_page_dirty_in_slot(struct kvm *kvm, struct kvm_memory_slot *memslot,
 	if (memslot && memslot->dirty_bitmap) {
 		unsigned long rel_gfn = gfn - memslot->base_gfn;
 
-		__set_bit_le(rel_gfn, memslot->dirty_bitmap);
+		if (!__test_and_set_bit_le(rel_gfn, memslot->dirty_bitmap))
+			memslot->nr_dirty_pages++;
 	}
 }
 
@@ -1690,10 +1743,6 @@ static int kvm_vm_ioctl_create_vcpu(struct kvm *kvm, u32 id)
 	smp_wmb();
 	atomic_inc(&kvm->online_vcpus);
 
-#ifdef CONFIG_KVM_APIC_ARCHITECTURE
-	if (kvm->bsp_vcpu_id == id)
-		kvm->bsp_vcpu = vcpu;
-#endif
 	mutex_unlock(&kvm->lock);
 	return r;
 
@@ -1768,12 +1817,11 @@ out_free1:
 		struct kvm_regs *kvm_regs;
 
 		r = -ENOMEM;
-		kvm_regs = kzalloc(sizeof(struct kvm_regs), GFP_KERNEL);
-		if (!kvm_regs)
+		kvm_regs = memdup_user(argp, sizeof(*kvm_regs));
+		if (IS_ERR(kvm_regs)) {
+			r = PTR_ERR(kvm_regs);
 			goto out;
-		r = -EFAULT;
-		if (copy_from_user(kvm_regs, argp, sizeof(struct kvm_regs)))
-			goto out_free2;
+		}
 		r = kvm_arch_vcpu_ioctl_set_regs(vcpu, kvm_regs);
 		if (r)
 			goto out_free2;
@@ -1797,13 +1845,11 @@ out_free2:
 		break;
 	}
 	case KVM_SET_SREGS: {
-		kvm_sregs = kmalloc(sizeof(struct kvm_sregs), GFP_KERNEL);
-		r = -ENOMEM;
-		if (!kvm_sregs)
-			goto out;
-		r = -EFAULT;
-		if (copy_from_user(kvm_sregs, argp, sizeof(struct kvm_sregs)))
+		kvm_sregs = memdup_user(argp, sizeof(*kvm_sregs));
+		if (IS_ERR(kvm_sregs)) {
+			r = PTR_ERR(kvm_sregs);
 			goto out;
+		}
 		r = kvm_arch_vcpu_ioctl_set_sregs(vcpu, kvm_sregs);
 		if (r)
 			goto out;
@@ -1899,13 +1945,11 @@ out_free2:
 		break;
 	}
 	case KVM_SET_FPU: {
-		fpu = kmalloc(sizeof(struct kvm_fpu), GFP_KERNEL);
-		r = -ENOMEM;
-		if (!fpu)
-			goto out;
-		r = -EFAULT;
-		if (copy_from_user(fpu, argp, sizeof(struct kvm_fpu)))
+		fpu = memdup_user(argp, sizeof(*fpu));
+		if (IS_ERR(fpu)) {
+			r = PTR_ERR(fpu);
 			goto out;
+		}
 		r = kvm_arch_vcpu_ioctl_set_fpu(vcpu, fpu);
 		if (r)
 			goto out;
@@ -2520,10 +2564,9 @@ int kvm_io_bus_register_dev(struct kvm *kvm, enum kvm_bus bus_idx, gpa_t addr,
 	if (bus->dev_count > NR_IOBUS_DEVS-1)
 		return -ENOSPC;
 
-	new_bus = kzalloc(sizeof(struct kvm_io_bus), GFP_KERNEL);
+	new_bus = kmemdup(bus, sizeof(struct kvm_io_bus), GFP_KERNEL);
 	if (!new_bus)
 		return -ENOMEM;
-	memcpy(new_bus, bus, sizeof(struct kvm_io_bus));
 	kvm_io_bus_insert_dev(new_bus, dev, addr, len);
 	rcu_assign_pointer(kvm->buses[bus_idx], new_bus);
 	synchronize_srcu_expedited(&kvm->srcu);
@@ -2539,13 +2582,12 @@ int kvm_io_bus_unregister_dev(struct kvm *kvm, enum kvm_bus bus_idx,
 	int i, r;
 	struct kvm_io_bus *new_bus, *bus;
 
-	new_bus = kzalloc(sizeof(struct kvm_io_bus), GFP_KERNEL);
+	bus = kvm->buses[bus_idx];
+
+	new_bus = kmemdup(bus, sizeof(*bus), GFP_KERNEL);
 	if (!new_bus)
 		return -ENOMEM;
 
-	bus = kvm->buses[bus_idx];
-	memcpy(new_bus, bus, sizeof(struct kvm_io_bus));
-
 	r = -ENOENT;
 	for (i = 0; i < new_bus->dev_count; i++)
 		if (new_bus->range[i].dev == dev) {
@@ -2612,15 +2654,29 @@ static const struct file_operations *stat_fops[] = {
 	[KVM_STAT_VM]   = &vm_stat_fops,
 };
 
-static void kvm_init_debug(void)
+static int kvm_init_debug(void)
 {
+	int r = -EFAULT;
 	struct kvm_stats_debugfs_item *p;
 
 	kvm_debugfs_dir = debugfs_create_dir("kvm", NULL);
-	for (p = debugfs_entries; p->name; ++p)
+	if (kvm_debugfs_dir == NULL)
+		goto out;
+
+	for (p = debugfs_entries; p->name; ++p) {
 		p->dentry = debugfs_create_file(p->name, 0444, kvm_debugfs_dir,
 						(void *)(long)p->offset,
 						stat_fops[p->kind]);
+		if (p->dentry == NULL)
+			goto out_dir;
+	}
+
+	return 0;
+
+out_dir:
+	debugfs_remove_recursive(kvm_debugfs_dir);
+out:
+	return r;
 }
 
 static void kvm_exit_debug(void)
@@ -2764,10 +2820,16 @@ int kvm_init(void *opaque, unsigned vcpu_size, unsigned vcpu_align,
 	kvm_preempt_ops.sched_in = kvm_sched_in;
 	kvm_preempt_ops.sched_out = kvm_sched_out;
 
-	kvm_init_debug();
+	r = kvm_init_debug();
+	if (r) {
+		printk(KERN_ERR "kvm: create debugfs files failed\n");
+		goto out_undebugfs;
+	}
 
 	return 0;
 
+out_undebugfs:
+	unregister_syscore_ops(&kvm_syscore_ops);
 out_unreg:
 	kvm_async_pf_deinit();
 out_free: